diff --git a/README-CN.md b/README-CN.md index a389097bf0..2ea6f9109b 100755 --- a/README-CN.md +++ b/README-CN.md @@ -186,7 +186,6 @@ organization={IEEE} | 子模块 | 来源 | 详细用途 | | -------------- | ----------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------- | | flute3 | [FastRoute](https://github.com/The-OpenROAD-Project-Attic/flute3) | 借助flute3来产生rectange steiner tree. | -| abseil-cpp | [Google abseil](https://github.com/abseil/abseil-cpp.git) | 使用Google的高性能C++容器和算法库提升性能，相比STL会改进程序性能. | | json | [JSON for Modern C++](https://github.com/nlohmann/json) | Json C++库，用来解析程序Json配置文件. | | libfort | [Seleznev Anton libfort](https://github.com/seleznevae/libfort.git) | C/C++ library 产生格式化的 ASCII tables. | | pegtl | [PEGTL（Parsing Expression Grammar Template Library）](https://github.com/taocpp/PEGTL/) | 使用PEGTL来方便的解析SPEF文件. | diff --git a/README.md b/README.md index abde066dd4..8c5d129eb8 100755 --- a/README.md +++ b/README.md @@ -212,7 +212,6 @@ In the development of iEDA, some sub-modules from the open-source community are | Sub-module | Source | Detail | | -------------- | ----------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------- | | flute3 | [FastRoute](https://github.com/The-OpenROAD-Project-Attic/flute3) | Generate rectange steiner tree by flute3. | -| abseil-cpp | [Google abseil](https://github.com/abseil/abseil-cpp.git) | Use Google's high performance C++ container and algorithm library to improve performance compared to STL. | | json | [JSON for Modern C++](https://github.com/nlohmann/json) | Json C++ library, used to parse the program Json configuration file. | | libfort | [Seleznev Anton libfort](https://github.com/seleznevae/libfort.git) | The C/C++ library produces formatted ASCII tables. | | pegtl | [PEGTL（Parsing Expression Grammar Template Library）](https://github.com/taocpp/PEGTL/) | Use PEGTL to parse SPEF files easily. | diff --git a/src/database/manager/builder/lef_builder/CMakeLists.txt b/src/database/manager/builder/lef_builder/CMakeLists.txt index e4a829423a..b0022d5e9b 100644 --- a/src/database/manager/builder/lef_builder/CMakeLists.txt +++ b/src/database/manager/builder/lef_builder/CMakeLists.txt @@ -23,8 +23,6 @@ target_include_directories(lef_builder ) target_link_libraries(lef_builder PRIVATE lef geometry_db ecc_logger) -target_link_libraries(lef_builder PUBLIC absl::strings) - option(TEST_LEFPARSER "If ON, test db." OFF) if(TEST_LEFPARSER) find_package(GTest REQUIRED) diff --git a/src/database/manager/builder/lef_builder/property_parser/routinglayer_parser.cpp b/src/database/manager/builder/lef_builder/property_parser/routinglayer_parser.cpp index 3888dc80a5..8f02a89b1c 100644 --- a/src/database/manager/builder/lef_builder/property_parser/routinglayer_parser.cpp +++ b/src/database/manager/builder/lef_builder/property_parser/routinglayer_parser.cpp @@ -19,7 +19,6 @@ #include -#include "absl/strings/match.h" #include "db_property/IdbRoutingLayerLef58Property.h" #include "lef58_property/routinglayer_property_parser.h" #include "property_parser/lef58_property/routinglayer_property.h" @@ -316,10 +315,10 @@ bool RoutingLayerParser::parse_lef58_spacingtable_jogtojog(const std::string& va bool RoutingLayerParser::parse_lef58_spacing(const std::string& value, IdbLayerRouting* data) { - if (absl::StrContains(value, "NOTCHLENGTH")) { + if (value.find("NOTCHLENGTH") != std::string::npos) { return parse_lef58_spacing_notchlength(value, data); } - if (absl::StrContains(value, "ENDOFLINE")) { + if (value.find("ENDOFLINE") != std::string::npos) { return parse_lef58_spacing_eol(value, data); } ECCLOG.warn(ecc::Loc::current(), "Unhandled LEF58_SPACING value: ", value); @@ -328,7 +327,7 @@ bool RoutingLayerParser::parse_lef58_spacing(const std::string& value, IdbLayerR bool RoutingLayerParser::parse_lef58_spacingtable(const std::string& value, IdbLayerRouting* data) { - if (absl::StrContains(value, "JOGTOJOGSPACING")) { + if (value.find("JOGTOJOGSPACING") != std::string::npos) { return parse_lef58_spacingtable_jogtojog(value, data); } ECCLOG.warn(ecc::Loc::current(), "Unhandled LEF58_SPACINGTABLE value: ", value); diff --git a/src/database/manager/parser/aocv/AocvParser.hh b/src/database/manager/parser/aocv/AocvParser.hh index 0a196f4991..792442e0e0 100644 --- a/src/database/manager/parser/aocv/AocvParser.hh +++ b/src/database/manager/parser/aocv/AocvParser.hh @@ -26,12 +26,12 @@ #include #include #include +#include #include #include #include #include -#include "absl/container/btree_map.h" #include "Type.hh" namespace idb { @@ -156,7 +156,7 @@ class AocvLibrary std::string _version_number; //!< The version of the aocv file. std::string _aocv_name; //!< The name of the aocv file. std::vector> _object_spec_sets; //!< The all object specs of the aocv file. - absl::btree_multimap _obj_name_to_spec_set; //!< The obj name map to the object spec set. + std::multimap _obj_name_to_spec_set; //!< The obj name map to the object spec set. FORBIDDEN_COPY(AocvLibrary); }; diff --git a/src/database/manager/parser/aocv/CMakeLists.txt b/src/database/manager/parser/aocv/CMakeLists.txt index dc74c64fc3..6da8a52172 100644 --- a/src/database/manager/parser/aocv/CMakeLists.txt +++ b/src/database/manager/parser/aocv/CMakeLists.txt @@ -14,4 +14,4 @@ TARGET_INCLUDE_DIRECTORIES(aocv-parser ${HOME_UTILITY} ) -TARGET_LINK_LIBRARIES(aocv-parser PUBLIC absl::btree ecc_logger tcl) +TARGET_LINK_LIBRARIES(aocv-parser PUBLIC ecc_logger tcl) diff --git a/src/database/manager/parser/liberty/CMakeLists.txt b/src/database/manager/parser/liberty/CMakeLists.txt index 500354631e..4fe1159cce 100644 --- a/src/database/manager/parser/liberty/CMakeLists.txt +++ b/src/database/manager/parser/liberty/CMakeLists.txt @@ -8,7 +8,7 @@ set(CMAKE_CXX_FLAGS_RELEASE "$ENV{CXXFLAGS} -DNDEBUG") aux_source_directory(./ SRC) add_library(liberty ${SRC}) -target_link_libraries(liberty PUBLIC absl::btree absl::inlined_vector ecc_logger tcl dl) +target_link_libraries(liberty PUBLIC ecc_logger tcl dl) target_include_directories(liberty PUBLIC ${CMAKE_CURRENT_SOURCE_DIR} diff --git a/src/database/manager/parser/liberty/Lib.cc b/src/database/manager/parser/liberty/Lib.cc index b3d00ef7af..b4705d0373 100644 --- a/src/database/manager/parser/liberty/Lib.cc +++ b/src/database/manager/parser/liberty/Lib.cc @@ -238,7 +238,7 @@ LibTable& LibTable::operator=(LibTable&& rhs) noexcept * @Brief : get axes or template axes. * @return auto& */ -absl::InlinedVector, 64>& LibTable::get_axes() +std::vector>& LibTable::get_axes() { if (_axes.empty()) { LibLutTableTemplate* table_template = get_table_template(); @@ -536,7 +536,7 @@ LibCurrentData::LibCurrentData(LibVectorTable* low_low, LibVectorTable* low_high */ std::tuple LibCurrentData::getSimulationTotalTimeAndNumPoints() { - absl::btree_map total_simulation_times; + std::map total_simulation_times; for (auto* table : {_low_low, _low_high, _high_low, _high_high}) { auto [total_time, num_point] = table->getSimulationTotalTimeAndNumPoints(); @@ -1122,13 +1122,13 @@ LibLeakagePower& LibLeakagePower::operator=(LibLeakagePower&& rhs) noexcept return *this; } -absl::btree_map LibArc::_str_to_type = {{"setup_rising", TimingType::kSetupRising}, - {"hold_rising", TimingType::kHoldRising}, - {"recovery_rising", TimingType::kRecoveryRising}, - {"removal_rising", TimingType::kRemovalRising}, - {"rising_edge", TimingType::kRisingEdge}, - {"preset", TimingType::kPreset}, - {"clear", TimingType::kClear}, +std::map LibArc::_str_to_type = {{"setup_rising", TimingType::kSetupRising}, + {"hold_rising", TimingType::kHoldRising}, + {"recovery_rising", TimingType::kRecoveryRising}, + {"removal_rising", TimingType::kRemovalRising}, + {"rising_edge", TimingType::kRisingEdge}, + {"preset", TimingType::kPreset}, + {"clear", TimingType::kClear}, {"three_state_enable", TimingType::kThreeStateEnable}, {"three_state_enable_rise", TimingType::kThreeStateEnableRise}, {"three_state_enable_fall", TimingType::kThreeStateEnableFall}, diff --git a/src/database/manager/parser/liberty/Lib.hh b/src/database/manager/parser/liberty/Lib.hh index 24d7ee57c4..b6270fbc99 100644 --- a/src/database/manager/parser/liberty/Lib.hh +++ b/src/database/manager/parser/liberty/Lib.hh @@ -24,6 +24,7 @@ #pragma once +#include #include #include #include @@ -33,8 +34,6 @@ #include #include -#include "absl/container/btree_map.h" -#include "absl/container/inlined_vector.h" #include "LibParserCpp.hh" #include "Config.hh" #include "Type.hh" @@ -169,7 +168,7 @@ class LibTable : public LibObject LibAxis& getAxis(unsigned int index); - absl::InlinedVector, 64>& get_axes(); + std::vector>& get_axes(); auto getAxesSize() { return _axes.size(); } void addTableValue(std::unique_ptr table_value) { _table_values.emplace_back(std::move(table_value)); } @@ -191,7 +190,7 @@ class LibTable : public LibObject double driveResistance(); private: - absl::InlinedVector, 64> _axes; //!< May be zero, one, two, three axes. + std::vector> _axes; //!< May be zero, one, two, three axes. std::vector> _table_values; //!< The axis values. TableType _table_type; //!< The table type. @@ -641,7 +640,7 @@ class LibPort : public LibObject std::optional _fanout_load; std::optional _max_fanout; - absl::InlinedVector, 64> _internal_powers; //!< The internal power information. + std::vector> _internal_powers; //!< The internal power information. FORBIDDEN_COPY(LibPort); }; @@ -725,7 +724,7 @@ class LibPortBus : public LibPort LibPort* operator[](int index); private: - absl::InlinedVector, 64> _ports; //!< The bus ports. + std::vector> _ports; //!< The bus ports. LibType* _bus_type = nullptr; FORBIDDEN_COPY(LibPortBus); @@ -931,7 +930,7 @@ class LibArc : public LibObject std::unique_ptr _table_model; //!< The arc timing model. - static absl::btree_map _str_to_type; + static std::map _str_to_type; unsigned _is_disable_arc = 0; //!< Forbidden arc. @@ -966,7 +965,7 @@ class LibArcSet unsigned isTwoTypeSenseArcSet(); private: - absl::InlinedVector, 64> _arcs; + std::vector> _arcs; FORBIDDEN_COPY(LibArcSet); }; @@ -1043,7 +1042,7 @@ class LibPowerArcSet auto& get_power_arcs() { return _power_arcs; } private: - absl::InlinedVector, 64> _power_arcs; + std::vector> _power_arcs; FORBIDDEN_COPY(LibPowerArcSet); }; @@ -1359,7 +1358,7 @@ class LibLutTableTemplate : public LibObject std::optional _template_variable3; std::optional _template_variable4; - absl::InlinedVector, 64> _axes; //!< May be zero, one, two, three axes. + std::vector> _axes; //!< May be zero, one, two, three axes. FORBIDDEN_COPY(LibLutTableTemplate); }; @@ -1669,15 +1668,15 @@ class LibLibrary : public LibObject std::vector> _cells; //!< The liberty cell, perserve the cell read order. std::map _str2cell; - absl::InlinedVector, 64> _lut_templates; //!< The timing table lut template, preserve the + std::vector> _lut_templates; //!< The timing table lut template, preserve the //!< template order. std::map _str2template; - absl::InlinedVector, 64> _wire_loads; //!< The wire load models. + std::vector> _wire_loads; //!< The wire load models. std::map _str2wireLoad; - absl::InlinedVector, 64> _types; //!< The lib type + std::vector> _types; //!< The lib type std::map _str2type; diff --git a/src/database/manager/parser/liberty/LibClassifyCell.cc b/src/database/manager/parser/liberty/LibClassifyCell.cc index c4fe0df90d..992d669c55 100644 --- a/src/database/manager/parser/liberty/LibClassifyCell.cc +++ b/src/database/manager/parser/liberty/LibClassifyCell.cc @@ -280,7 +280,7 @@ bool LibClassifyCell::compareFunction(LibCell* the_cell1, LibCell* the_cell2) * @param hash_to_cells */ void LibClassifyCell::classifyOneLibCell(LibLibrary* the_lib, - std::unordered_map>& hash_to_cells) + std::unordered_map>& hash_to_cells) { LibCell* cell; FOREACH_LIB_CELL(the_lib, cell) @@ -311,7 +311,7 @@ void LibClassifyCell::classifyOneLibCell(LibLibrary* the_lib, */ void LibClassifyCell::classifyLibCell(std::vector& the_libs) { - std::unordered_map> hash_to_cells; + std::unordered_map> hash_to_cells; for (auto* the_lib : the_libs) { classifyOneLibCell(the_lib, hash_to_cells); } diff --git a/src/database/manager/parser/liberty/LibClassifyCell.hh b/src/database/manager/parser/liberty/LibClassifyCell.hh index 46154bff8d..dec60ad7ec 100644 --- a/src/database/manager/parser/liberty/LibClassifyCell.hh +++ b/src/database/manager/parser/liberty/LibClassifyCell.hh @@ -11,10 +11,10 @@ */ #pragma once +#include #include +#include -#include "absl/container/btree_map.h" -#include "absl/container/inlined_vector.h" #include "Lib.hh" namespace idb { @@ -27,7 +27,7 @@ class LibClassifyCell { public: void classifyLibCell(std::vector& the_libs); - absl::InlinedVector* getClassOfCell(LibCell* cell) + std::vector* getClassOfCell(LibCell* cell) { if (_func_same_cells.contains(cell)) { return &_func_same_cells[cell]; @@ -50,9 +50,8 @@ class LibClassifyCell bool compareFunction(LibCell* the_cell1, LibCell* the_cell2); - void classifyOneLibCell(LibLibrary* the_lib, std::unordered_map>& hash_to_cells); + void classifyOneLibCell(LibLibrary* the_lib, std::unordered_map>& hash_to_cells); - absl::btree_map> _func_same_cells; //!< The one cell map to the func same cell with - //!< different size. + std::map> _func_same_cells; //!< The one cell map to the func same cell with different size. }; } // namespace idb diff --git a/src/database/manager/parser/liberty/LibParserCpp.cc b/src/database/manager/parser/liberty/LibParserCpp.cc index 3cf674cf05..68b6152aae 100644 --- a/src/database/manager/parser/liberty/LibParserCpp.cc +++ b/src/database/manager/parser/liberty/LibParserCpp.cc @@ -22,7 +22,6 @@ * @date 2023-10-13 * */ -#include "absl/container/btree_set.h" #include "CppLibertyDriver.hh" #include "Lib.hh" #include "LibParserCpp.hh" @@ -34,6 +33,7 @@ #include #include #include +#include #include #include #include @@ -1582,11 +1582,10 @@ unsigned LibertyReader::visitGroup(LibertyGroupStmt* group) { unsigned is_ok = 1; const char* group_name = group->group_name; - static const absl::btree_set table_names = { + static const std::set table_names = { "cell_rise", "cell_fall", "rise_transition", "fall_transition", "rise_constraint", "fall_constraint"}; - static const absl::btree_set power_table_names = {"rise_power", - "fall_power"}; + static const std::set power_table_names = {"rise_power", "fall_power"}; if (isEqual(group_name, "library")) { is_ok = visitLibrary(group); @@ -2040,11 +2039,10 @@ unsigned LibertyReader::visitGroup(liberty_ast::LibGroup* group) { unsigned is_ok = 1; const char* group_name = group->getGroupType(); - static const absl::btree_set table_names = { + static const std::set table_names = { "cell_rise", "cell_fall", "rise_transition", "fall_transition", "rise_constraint", "fall_constraint"}; - static const absl::btree_set power_table_names = {"rise_power", - "fall_power"}; + static const std::set power_table_names = {"rise_power", "fall_power"}; if (isEqual(group_name, "library")) { is_ok = visitLibrary(group); diff --git a/src/interface/tcl/tcl_engine/CMakeLists.txt b/src/interface/tcl/tcl_engine/CMakeLists.txt index 4974a91a2c..63feafbf15 100644 --- a/src/interface/tcl/tcl_engine/CMakeLists.txt +++ b/src/interface/tcl/tcl_engine/CMakeLists.txt @@ -24,7 +24,7 @@ else() add_library(tcl SHARED ${SRC}) endif() -target_link_libraries(tcl PUBLIC ${LINK_tcl} absl::inlined_vector ecc_logger) +target_link_libraries(tcl PUBLIC ${LINK_tcl} ecc_logger) target_include_directories(tcl PUBLIC diff --git a/src/interface/tcl/tcl_engine/ScriptEngine.hh b/src/interface/tcl/tcl_engine/ScriptEngine.hh index 3b0be274e1..a2805e04e0 100644 --- a/src/interface/tcl/tcl_engine/ScriptEngine.hh +++ b/src/interface/tcl/tcl_engine/ScriptEngine.hh @@ -39,7 +39,6 @@ #include #include -#include "absl/container/inlined_vector.h" #include "utility/logger/Logger.hpp" namespace ecc { @@ -600,7 +599,7 @@ class TclCmd } std::string _cmd_name; std::map> _options; //!< The tcl option do not need keep order. - absl::InlinedVector _args; //!< The tcl arg need keep order. + std::vector _args; //!< The tcl arg need keep order. }; /** diff --git a/src/operation/iCTS/source/data_manager/adapter/fast_sta/CMakeLists.txt b/src/operation/iCTS/source/data_manager/adapter/fast_sta/CMakeLists.txt index c846f8ee17..627db05736 100644 --- a/src/operation/iCTS/source/data_manager/adapter/fast_sta/CMakeLists.txt +++ b/src/operation/iCTS/source/data_manager/adapter/fast_sta/CMakeLists.txt @@ -35,7 +35,6 @@ target_link_libraries( PRIVATE icts_source_data_manager_io icts_source_toolkit_logger - absl::inlined_vector liberty ) @@ -110,7 +109,6 @@ target_link_libraries( PRIVATE icts_source_data_manager_adapter_fast_sta_clock_net_parasitic icts_source_data_manager_adapter_fast_sta_liberty_model - absl::fixed_array ) target_include_directories( diff --git a/src/third_party/CMakeLists.txt b/src/third_party/CMakeLists.txt index b6c228274c..ee30dc5f80 100644 --- a/src/third_party/CMakeLists.txt +++ b/src/third_party/CMakeLists.txt @@ -8,7 +8,6 @@ endif() add_subdirectory(libfort) add_subdirectory(flute3) add_subdirectory(pybind11) -add_subdirectory(abseil-cpp) add_subdirectory(lefdef EXCLUDE_FROM_ALL) add_subdirectory(salt) add_subdirectory(lemon) diff --git a/src/third_party/abseil-cpp/.clang-format b/src/third_party/abseil-cpp/.clang-format deleted file mode 100644 index 06ea346a10..0000000000 --- a/src/third_party/abseil-cpp/.clang-format +++ /dev/null @@ -1,4 +0,0 @@ ---- -Language: Cpp -BasedOnStyle: Google -... diff --git a/src/third_party/abseil-cpp/.github/ISSUE_TEMPLATE/00-bug_report.yml b/src/third_party/abseil-cpp/.github/ISSUE_TEMPLATE/00-bug_report.yml deleted file mode 100644 index 32cebe15a8..0000000000 --- a/src/third_party/abseil-cpp/.github/ISSUE_TEMPLATE/00-bug_report.yml +++ /dev/null @@ -1,53 +0,0 @@ -name: Bug Report -description: Let us know that something does not work as expected. -title: "[Bug]: Please title this bug report" -body: - - type: textarea - id: what-happened - attributes: - label: Describe the issue - description: What happened, and what did you expect to happen? - validations: - required: true - - type: textarea - id: steps - attributes: - label: Steps to reproduce the problem - description: It is important that we are able to reproduce the problem that you are experiencing. Please provide all code and relevant steps to reproduce the problem, including your `BUILD`/`CMakeLists.txt` file and build commands. Links to a GitHub branch or [godbolt.org](https://godbolt.org/) that demonstrate the problem are also helpful. - validations: - required: true - - type: textarea - id: version - attributes: - label: What version of Abseil are you using? - description: Please include the output of `git rev-parse HEAD` or the name of the LTS release that you are using. - validations: - required: true - - type: textarea - id: os - attributes: - label: What operating system and version are you using? - description: If you are using a Linux distribution please include the name and version of the distribution as well. - validations: - required: true - - type: textarea - id: compiler - attributes: - label: What compiler and version are you using? - description: Please include the output of `gcc -v` or `clang -v`, or the equivalent for your compiler. - validations: - required: true - - type: textarea - id: buildsystem - attributes: - label: What build system are you using? - description: Please include the output of `bazel --version` or `cmake --version`, or the equivalent for your build system. - validations: - required: true - - type: textarea - id: additional - attributes: - label: Additional context - description: Add any other context about the problem here. - validations: - required: false diff --git a/src/third_party/abseil-cpp/.github/ISSUE_TEMPLATE/config.yml b/src/third_party/abseil-cpp/.github/ISSUE_TEMPLATE/config.yml deleted file mode 100644 index c690fd9a51..0000000000 --- a/src/third_party/abseil-cpp/.github/ISSUE_TEMPLATE/config.yml +++ /dev/null @@ -1,5 +0,0 @@ -blank_issues_enabled: false -contact_links: - - name: Question - url: https://github.com/abseil/abseil-cpp/discussions - about: Have a question? Ask us anything! :-) diff --git a/src/third_party/abseil-cpp/.gitignore b/src/third_party/abseil-cpp/.gitignore deleted file mode 100644 index d54fa5a91f..0000000000 --- a/src/third_party/abseil-cpp/.gitignore +++ /dev/null @@ -1,15 +0,0 @@ -# Ignore all bazel-* symlinks. -/bazel-* -# Ignore Bazel verbose explanations ---verbose_explanations -# Ignore CMake usual build directory -build -# Ignore Vim files -*.swp -# Ignore QtCreator Project file -CMakeLists.txt.user -# Ignore VS Code files -.vscode/* -# Ignore generated python artifacts -*.pyc -copts/__pycache__/ diff --git a/src/third_party/abseil-cpp/ABSEIL_ISSUE_TEMPLATE.md b/src/third_party/abseil-cpp/ABSEIL_ISSUE_TEMPLATE.md deleted file mode 100644 index ed5461f166..0000000000 --- a/src/third_party/abseil-cpp/ABSEIL_ISSUE_TEMPLATE.md +++ /dev/null @@ -1,22 +0,0 @@ -Please submit a new Abseil Issue using the template below: - -## [Short title of proposed API change(s)] - --------------------------------------------------------------------------------- --------------------------------------------------------------------------------- - -## Background - -[Provide the background information that is required in order to evaluate the -proposed API changes. No controversial claims should be made here. If there are -design constraints that need to be considered, they should be presented here -**along with justification for those constraints**. Linking to other docs is -good, but please keep the **pertinent information as self contained** as -possible in this section.] - -## Proposed API Change (s) - -[Please clearly describe the API change(s) being proposed. If multiple changes, -please keep them clearly distinguished. When possible, **use example code -snippets to illustrate before-after API usages**. List pros-n-cons. Highlight -the main questions that you want to be answered. Given the Abseil project compatibility requirements, describe why the API change is safe.] diff --git a/src/third_party/abseil-cpp/AUTHORS b/src/third_party/abseil-cpp/AUTHORS deleted file mode 100644 index 976d31defc..0000000000 --- a/src/third_party/abseil-cpp/AUTHORS +++ /dev/null @@ -1,6 +0,0 @@ -# This is the list of Abseil authors for copyright purposes. -# -# This does not necessarily list everyone who has contributed code, since in -# some cases, their employer may be the copyright holder. To see the full list -# of contributors, see the revision history in source control. -Google Inc. diff --git a/src/third_party/abseil-cpp/BUILD.bazel b/src/third_party/abseil-cpp/BUILD.bazel deleted file mode 100644 index 79fb0ecd73..0000000000 --- a/src/third_party/abseil-cpp/BUILD.bazel +++ /dev/null @@ -1,25 +0,0 @@ -# -# Copyright 2020 The Abseil Authors. -# -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at -# -# https://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. -# - -package(default_visibility = ["//visibility:public"]) - -licenses(["notice"]) # Apache 2.0 - -# Expose license for external usage through bazel. -exports_files([ - "AUTHORS", - "LICENSE", -]) diff --git a/src/third_party/abseil-cpp/CMake/AbseilDll.cmake b/src/third_party/abseil-cpp/CMake/AbseilDll.cmake deleted file mode 100644 index c4a41e6d42..0000000000 --- a/src/third_party/abseil-cpp/CMake/AbseilDll.cmake +++ /dev/null @@ -1,809 +0,0 @@ -include(CMakeParseArguments) -include(GNUInstallDirs) - -set(ABSL_INTERNAL_DLL_FILES - "algorithm/algorithm.h" - "algorithm/container.h" - "base/attributes.h" - "base/call_once.h" - "base/casts.h" - "base/config.h" - "base/const_init.h" - "base/dynamic_annotations.h" - "base/internal/atomic_hook.h" - "base/internal/cycleclock.cc" - "base/internal/cycleclock.h" - "base/internal/cycleclock_config.h" - "base/internal/direct_mmap.h" - "base/internal/dynamic_annotations.h" - "base/internal/endian.h" - "base/internal/errno_saver.h" - "base/internal/fast_type_id.h" - "base/internal/hide_ptr.h" - "base/internal/identity.h" - "base/internal/invoke.h" - "base/internal/inline_variable.h" - "base/internal/low_level_alloc.cc" - "base/internal/low_level_alloc.h" - "base/internal/low_level_scheduling.h" - "base/internal/per_thread_tls.h" - "base/internal/prefetch.h" - "base/internal/pretty_function.h" - "base/internal/raw_logging.cc" - "base/internal/raw_logging.h" - "base/internal/scheduling_mode.h" - "base/internal/scoped_set_env.cc" - "base/internal/scoped_set_env.h" - "base/internal/strerror.h" - "base/internal/strerror.cc" - "base/internal/spinlock.cc" - "base/internal/spinlock.h" - "base/internal/spinlock_wait.cc" - "base/internal/spinlock_wait.h" - "base/internal/sysinfo.cc" - "base/internal/sysinfo.h" - "base/internal/thread_annotations.h" - "base/internal/thread_identity.cc" - "base/internal/thread_identity.h" - "base/internal/throw_delegate.cc" - "base/internal/throw_delegate.h" - "base/internal/tsan_mutex_interface.h" - "base/internal/unaligned_access.h" - "base/internal/unscaledcycleclock.cc" - "base/internal/unscaledcycleclock.h" - "base/internal/unscaledcycleclock_config.h" - "base/log_severity.cc" - "base/log_severity.h" - "base/macros.h" - "base/optimization.h" - "base/options.h" - "base/policy_checks.h" - "base/port.h" - "base/thread_annotations.h" - "cleanup/cleanup.h" - "cleanup/internal/cleanup.h" - "container/btree_map.h" - "container/btree_set.h" - "container/fixed_array.h" - "container/flat_hash_map.h" - "container/flat_hash_set.h" - "container/inlined_vector.h" - "container/internal/btree.h" - "container/internal/btree_container.h" - "container/internal/common.h" - "container/internal/common_policy_traits.h" - "container/internal/compressed_tuple.h" - "container/internal/container_memory.h" - "container/internal/counting_allocator.h" - "container/internal/hash_function_defaults.h" - "container/internal/hash_policy_traits.h" - "container/internal/hashtable_debug.h" - "container/internal/hashtable_debug_hooks.h" - "container/internal/hashtablez_sampler.cc" - "container/internal/hashtablez_sampler.h" - "container/internal/hashtablez_sampler_force_weak_definition.cc" - "container/internal/inlined_vector.h" - "container/internal/layout.h" - "container/internal/node_slot_policy.h" - "container/internal/raw_hash_map.h" - "container/internal/raw_hash_set.cc" - "container/internal/raw_hash_set.h" - "container/internal/tracked.h" - "container/node_hash_map.h" - "container/node_hash_set.h" - "crc/crc32c.cc" - "crc/crc32c.h" - "crc/internal/cpu_detect.cc" - "crc/internal/cpu_detect.h" - "crc/internal/crc32c.h" - "crc/internal/crc32c_inline.h" - "crc/internal/crc32_x86_arm_combined_simd.h" - "crc/internal/crc.cc" - "crc/internal/crc.h" - "crc/internal/crc_cord_state.cc" - "crc/internal/crc_cord_state.h" - "crc/internal/crc_internal.h" - "crc/internal/crc_x86_arm_combined.cc" - "crc/internal/crc_memcpy_fallback.cc" - "crc/internal/crc_memcpy.h" - "crc/internal/crc_memcpy_x86_64.cc" - "crc/internal/crc_non_temporal_memcpy.cc" - "crc/internal/crc_x86_arm_combined.cc" - "crc/internal/non_temporal_arm_intrinsics.h" - "crc/internal/non_temporal_memcpy.h" - "debugging/failure_signal_handler.cc" - "debugging/failure_signal_handler.h" - "debugging/leak_check.h" - "debugging/stacktrace.cc" - "debugging/stacktrace.h" - "debugging/symbolize.cc" - "debugging/symbolize.h" - "debugging/internal/address_is_readable.cc" - "debugging/internal/address_is_readable.h" - "debugging/internal/demangle.cc" - "debugging/internal/demangle.h" - "debugging/internal/elf_mem_image.cc" - "debugging/internal/elf_mem_image.h" - "debugging/internal/examine_stack.cc" - "debugging/internal/examine_stack.h" - "debugging/internal/stack_consumption.cc" - "debugging/internal/stack_consumption.h" - "debugging/internal/stacktrace_config.h" - "debugging/internal/symbolize.h" - "debugging/internal/vdso_support.cc" - "debugging/internal/vdso_support.h" - "functional/any_invocable.h" - "functional/internal/front_binder.h" - "functional/bind_front.h" - "functional/function_ref.h" - "functional/internal/any_invocable.h" - "functional/internal/function_ref.h" - "hash/hash.h" - "hash/internal/city.h" - "hash/internal/city.cc" - "hash/internal/hash.h" - "hash/internal/hash.cc" - "hash/internal/spy_hash_state.h" - "hash/internal/low_level_hash.h" - "hash/internal/low_level_hash.cc" - "log/absl_check.h" - "log/absl_log.h" - "log/check.h" - "log/die_if_null.cc" - "log/die_if_null.h" - "log/globals.cc" - "log/globals.h" - "log/internal/append_truncated.h" - "log/internal/check_impl.h" - "log/internal/check_op.cc" - "log/internal/check_op.h" - "log/internal/conditions.cc" - "log/internal/conditions.h" - "log/internal/config.h" - "log/internal/globals.cc" - "log/internal/globals.h" - "log/internal/log_format.cc" - "log/internal/log_format.h" - "log/internal/log_impl.h" - "log/internal/log_message.cc" - "log/internal/log_message.h" - "log/internal/log_sink_set.cc" - "log/internal/log_sink_set.h" - "log/internal/nullguard.cc" - "log/internal/nullguard.h" - "log/internal/nullstream.h" - "log/internal/proto.h" - "log/internal/proto.cc" - "log/internal/strip.h" - "log/internal/structured.h" - "log/internal/voidify.h" - "log/initialize.cc" - "log/initialize.h" - "log/log.h" - "log/log_entry.cc" - "log/log_entry.h" - "log/log_sink.cc" - "log/log_sink.h" - "log/log_sink_registry.h" - "log/log_streamer.h" - "log/structured.h" - "memory/memory.h" - "meta/type_traits.h" - "numeric/bits.h" - "numeric/int128.cc" - "numeric/int128.h" - "numeric/internal/bits.h" - "numeric/internal/representation.h" - "profiling/internal/exponential_biased.cc" - "profiling/internal/exponential_biased.h" - "profiling/internal/periodic_sampler.cc" - "profiling/internal/periodic_sampler.h" - "profiling/internal/sample_recorder.h" - "random/bernoulli_distribution.h" - "random/beta_distribution.h" - "random/bit_gen_ref.h" - "random/discrete_distribution.cc" - "random/discrete_distribution.h" - "random/distributions.h" - "random/exponential_distribution.h" - "random/gaussian_distribution.cc" - "random/gaussian_distribution.h" - "random/internal/distribution_caller.h" - "random/internal/fastmath.h" - "random/internal/fast_uniform_bits.h" - "random/internal/generate_real.h" - "random/internal/iostream_state_saver.h" - "random/internal/nonsecure_base.h" - "random/internal/pcg_engine.h" - "random/internal/platform.h" - "random/internal/pool_urbg.cc" - "random/internal/pool_urbg.h" - "random/internal/randen.cc" - "random/internal/randen.h" - "random/internal/randen_detect.cc" - "random/internal/randen_detect.h" - "random/internal/randen_engine.h" - "random/internal/randen_hwaes.cc" - "random/internal/randen_hwaes.h" - "random/internal/randen_round_keys.cc" - "random/internal/randen_slow.cc" - "random/internal/randen_slow.h" - "random/internal/randen_traits.h" - "random/internal/salted_seed_seq.h" - "random/internal/seed_material.cc" - "random/internal/seed_material.h" - "random/internal/sequence_urbg.h" - "random/internal/traits.h" - "random/internal/uniform_helper.h" - "random/internal/wide_multiply.h" - "random/log_uniform_int_distribution.h" - "random/poisson_distribution.h" - "random/random.h" - "random/seed_gen_exception.cc" - "random/seed_gen_exception.h" - "random/seed_sequences.cc" - "random/seed_sequences.h" - "random/uniform_int_distribution.h" - "random/uniform_real_distribution.h" - "random/zipf_distribution.h" - "status/internal/status_internal.h" - "status/internal/statusor_internal.h" - "status/status.h" - "status/status.cc" - "status/statusor.h" - "status/statusor.cc" - "status/status_payload_printer.h" - "status/status_payload_printer.cc" - "strings/ascii.cc" - "strings/ascii.h" - "strings/charconv.cc" - "strings/charconv.h" - "strings/cord.cc" - "strings/cord.h" - "strings/cord_analysis.cc" - "strings/cord_analysis.h" - "strings/cord_buffer.cc" - "strings/cord_buffer.h" - "strings/escaping.cc" - "strings/escaping.h" - "strings/internal/charconv_bigint.cc" - "strings/internal/charconv_bigint.h" - "strings/internal/charconv_parse.cc" - "strings/internal/charconv_parse.h" - "strings/internal/cord_data_edge.h" - "strings/internal/cord_internal.cc" - "strings/internal/cord_internal.h" - "strings/internal/cord_rep_btree.cc" - "strings/internal/cord_rep_btree.h" - "strings/internal/cord_rep_btree_navigator.cc" - "strings/internal/cord_rep_btree_navigator.h" - "strings/internal/cord_rep_btree_reader.cc" - "strings/internal/cord_rep_btree_reader.h" - "strings/internal/cord_rep_crc.cc" - "strings/internal/cord_rep_crc.h" - "strings/internal/cord_rep_consume.h" - "strings/internal/cord_rep_consume.cc" - "strings/internal/cord_rep_flat.h" - "strings/internal/cord_rep_ring.cc" - "strings/internal/cord_rep_ring.h" - "strings/internal/cord_rep_ring_reader.h" - "strings/internal/cordz_functions.cc" - "strings/internal/cordz_functions.h" - "strings/internal/cordz_handle.cc" - "strings/internal/cordz_handle.h" - "strings/internal/cordz_info.cc" - "strings/internal/cordz_info.h" - "strings/internal/cordz_sample_token.cc" - "strings/internal/cordz_sample_token.h" - "strings/internal/cordz_statistics.h" - "strings/internal/cordz_update_scope.h" - "strings/internal/cordz_update_tracker.h" - "strings/internal/damerau_levenshtein_distance.h" - "strings/internal/damerau_levenshtein_distance.cc" - "strings/internal/stl_type_traits.h" - "strings/internal/string_constant.h" - "strings/internal/stringify_sink.h" - "strings/internal/stringify_sink.cc" - "strings/internal/has_absl_stringify.h" - "strings/match.cc" - "strings/match.h" - "strings/numbers.cc" - "strings/numbers.h" - "strings/str_format.h" - "strings/str_cat.cc" - "strings/str_cat.h" - "strings/str_join.h" - "strings/str_replace.cc" - "strings/str_replace.h" - "strings/str_split.cc" - "strings/str_split.h" - "strings/string_view.cc" - "strings/string_view.h" - "strings/strip.h" - "strings/substitute.cc" - "strings/substitute.h" - "strings/internal/char_map.h" - "strings/internal/escaping.h" - "strings/internal/escaping.cc" - "strings/internal/memutil.cc" - "strings/internal/memutil.h" - "strings/internal/ostringstream.cc" - "strings/internal/ostringstream.h" - "strings/internal/pow10_helper.cc" - "strings/internal/pow10_helper.h" - "strings/internal/resize_uninitialized.h" - "strings/internal/str_format/arg.cc" - "strings/internal/str_format/arg.h" - "strings/internal/str_format/bind.cc" - "strings/internal/str_format/bind.h" - "strings/internal/str_format/checker.h" - "strings/internal/str_format/constexpr_parser.h" - "strings/internal/str_format/extension.cc" - "strings/internal/str_format/extension.h" - "strings/internal/str_format/float_conversion.cc" - "strings/internal/str_format/float_conversion.h" - "strings/internal/str_format/output.cc" - "strings/internal/str_format/output.h" - "strings/internal/str_format/parser.cc" - "strings/internal/str_format/parser.h" - "strings/internal/str_join_internal.h" - "strings/internal/str_split_internal.h" - "strings/internal/utf8.cc" - "strings/internal/utf8.h" - "synchronization/barrier.cc" - "synchronization/barrier.h" - "synchronization/blocking_counter.cc" - "synchronization/blocking_counter.h" - "synchronization/mutex.cc" - "synchronization/mutex.h" - "synchronization/notification.cc" - "synchronization/notification.h" - "synchronization/internal/create_thread_identity.cc" - "synchronization/internal/create_thread_identity.h" - "synchronization/internal/futex.h" - "synchronization/internal/graphcycles.cc" - "synchronization/internal/graphcycles.h" - "synchronization/internal/kernel_timeout.h" - "synchronization/internal/per_thread_sem.cc" - "synchronization/internal/per_thread_sem.h" - "synchronization/internal/thread_pool.h" - "synchronization/internal/waiter.cc" - "synchronization/internal/waiter.h" - "time/civil_time.cc" - "time/civil_time.h" - "time/clock.cc" - "time/clock.h" - "time/duration.cc" - "time/format.cc" - "time/time.cc" - "time/time.h" - "time/internal/cctz/include/cctz/civil_time.h" - "time/internal/cctz/include/cctz/civil_time_detail.h" - "time/internal/cctz/include/cctz/time_zone.h" - "time/internal/cctz/include/cctz/zone_info_source.h" - "time/internal/cctz/src/civil_time_detail.cc" - "time/internal/cctz/src/time_zone_fixed.cc" - "time/internal/cctz/src/time_zone_fixed.h" - "time/internal/cctz/src/time_zone_format.cc" - "time/internal/cctz/src/time_zone_if.cc" - "time/internal/cctz/src/time_zone_if.h" - "time/internal/cctz/src/time_zone_impl.cc" - "time/internal/cctz/src/time_zone_impl.h" - "time/internal/cctz/src/time_zone_info.cc" - "time/internal/cctz/src/time_zone_info.h" - "time/internal/cctz/src/time_zone_libc.cc" - "time/internal/cctz/src/time_zone_libc.h" - "time/internal/cctz/src/time_zone_lookup.cc" - "time/internal/cctz/src/time_zone_posix.cc" - "time/internal/cctz/src/time_zone_posix.h" - "time/internal/cctz/src/tzfile.h" - "time/internal/cctz/src/zone_info_source.cc" - "types/any.h" - "types/bad_any_cast.cc" - "types/bad_any_cast.h" - "types/bad_optional_access.cc" - "types/bad_optional_access.h" - "types/bad_variant_access.cc" - "types/bad_variant_access.h" - "types/compare.h" - "types/internal/conformance_aliases.h" - "types/internal/conformance_archetype.h" - "types/internal/conformance_profile.h" - "types/internal/parentheses.h" - "types/internal/transform_args.h" - "types/internal/variant.h" - "types/optional.h" - "types/internal/optional.h" - "types/span.h" - "types/internal/span.h" - "types/variant.h" - "utility/utility.h" - "debugging/leak_check.cc" -) - -set(ABSL_INTERNAL_DLL_TARGETS - "absl_check" - "absl_log" - "algorithm" - "algorithm_container" - "any" - "any_invocable" - "atomic_hook" - "bad_any_cast" - "bad_any_cast_impl" - "bad_optional_access" - "bad_variant_access" - "base" - "base_internal" - "bind_front" - "bits" - "btree" - "check" - "city" - "civil_time" - "compare" - "compressed_tuple" - "config" - "container" - "container_common" - "container_memory" - "cord" - "core_headers" - "counting_allocator" - "crc_cpu_detect" - "crc_internal" - "crc32c" - "debugging" - "debugging_internal" - "demangle_internal" - "die_if_null" - "dynamic_annotations" - "endian" - "examine_stack" - "exponential_biased" - "failure_signal_handler" - "fixed_array" - "flat_hash_map" - "flat_hash_set" - "function_ref" - "graphcycles_internal" - "hash" - "hash_function_defaults" - "hash_policy_traits" - "hashtable_debug" - "hashtable_debug_hooks" - "hashtablez_sampler" - "inlined_vector" - "inlined_vector_internal" - "int128" - "kernel_timeout_internal" - "layout" - "leak_check" - "log_internal_check_impl" - "log_internal_check_op" - "log_internal_conditions" - "log_internal_config" - "log_internal_format" - "log_internal_globals" - "log_internal_log_impl" - "log_internal_proto" - "log_internal_message" - "log_internal_log_sink_set" - "log_internal_nullguard" - "log_internal_nullstream" - "log_internal_strip" - "log_internal_voidify" - "log_internal_append_truncated" - "log_globals" - "log_initialize" - "log" - "log_entry" - "log_sink" - "log_sink_registry" - "log_streamer" - "log_internal_structured" - "log_severity" - "log_structured" - "malloc_internal" - "memory" - "meta" - "node_hash_map" - "node_hash_set" - "node_slot_policy" - "non_temporal_arm_intrinsics" - "non_temporal_memcpy" - "numeric" - "optional" - "periodic_sampler" - "pow10_helper" - "pretty_function" - "random_bit_gen_ref" - "random_distributions" - "random_internal_distribution_caller" - "random_internal_distributions" - "random_internal_explicit_seed_seq" - "random_internal_fastmath" - "random_internal_fast_uniform_bits" - "random_internal_generate_real" - "random_internal_iostream_state_saver" - "random_internal_nonsecure_base" - "random_internal_pcg_engine" - "random_internal_platform" - "random_internal_pool_urbg" - "random_internal_randen" - "random_internal_randen_engine" - "random_internal_randen_hwaes" - "random_internal_randen_hwaes_impl" - "random_internal_randen_slow" - "random_internal_salted_seed_seq" - "random_internal_seed_material" - "random_internal_sequence_urbg" - "random_internal_traits" - "random_internal_uniform_helper" - "random_internal_wide_multiply" - "random_random" - "random_seed_gen_exception" - "random_seed_sequences" - "raw_hash_map" - "raw_hash_set" - "raw_logging_internal" - "sample_recorder" - "scoped_set_env" - "span" - "spinlock_wait" - "spy_hash_state" - "stack_consumption" - "stacktrace" - "status" - "str_format" - "str_format_internal" - "strings" - "strings_internal" - "symbolize" - "synchronization" - "thread_pool" - "throw_delegate" - "time" - "time_zone" - "tracked" - "type_traits" - "utility" - "variant" -) - -set(ABSL_INTERNAL_TEST_DLL_FILES - "hash/hash_testing.h" - "log/scoped_mock_log.cc" - "log/scoped_mock_log.h" - "random/internal/mock_helpers.h" - "random/internal/mock_overload_set.h" - "random/mocking_bit_gen.h" - "random/mock_distributions.h" - "strings/cordz_test_helpers.h" - "strings/cord_test_helpers.h" -) - -set(ABSL_INTERNAL_TEST_DLL_TARGETS - "cord_test_helpers" - "cordz_test_helpers" - "hash_testing" - "random_mocking_bit_gen" - "random_internal_mock_overload_set" - "scoped_mock_log" -) - -function(_absl_target_compile_features_if_available TARGET TYPE FEATURE) - if(FEATURE IN_LIST CMAKE_CXX_COMPILE_FEATURES) - target_compile_features(${TARGET} ${TYPE} ${FEATURE}) - else() - message(WARNING "Feature ${FEATURE} is unknown for the CXX compiler") - endif() -endfunction() - -include(CheckCXXSourceCompiles) - -check_cxx_source_compiles( - [==[ -#ifdef _MSC_VER -# if _MSVC_LANG < 201700L -# error "The compiler defaults or is configured for C++ < 17" -# endif -#elif __cplusplus < 201700L -# error "The compiler defaults or is configured for C++ < 17" -#endif -int main() { return 0; } -]==] - ABSL_INTERNAL_AT_LEAST_CXX17) - -if(ABSL_INTERNAL_AT_LEAST_CXX17) - set(ABSL_INTERNAL_CXX_STD_FEATURE cxx_std_17) -else() - set(ABSL_INTERNAL_CXX_STD_FEATURE cxx_std_14) -endif() - -function(absl_internal_dll_contains) - cmake_parse_arguments(ABSL_INTERNAL_DLL - "" - "OUTPUT;TARGET" - "" - ${ARGN} - ) - - STRING(REGEX REPLACE "^absl::" "" _target ${ABSL_INTERNAL_DLL_TARGET}) - - list(FIND - ABSL_INTERNAL_DLL_TARGETS - "${_target}" - _index) - - if (${_index} GREATER -1) - set(${ABSL_INTERNAL_DLL_OUTPUT} 1 PARENT_SCOPE) - else() - set(${ABSL_INTERNAL_DLL_OUTPUT} 0 PARENT_SCOPE) - endif() -endfunction() - -function(absl_internal_test_dll_contains) - cmake_parse_arguments(ABSL_INTERNAL_TEST_DLL - "" - "OUTPUT;TARGET" - "" - ${ARGN} - ) - - STRING(REGEX REPLACE "^absl::" "" _target ${ABSL_INTERNAL_TEST_DLL_TARGET}) - - list(FIND - ABSL_INTERNAL_TEST_DLL_TARGETS - "${_target}" - _index) - - if (${_index} GREATER -1) - set(${ABSL_INTERNAL_TEST_DLL_OUTPUT} 1 PARENT_SCOPE) - else() - set(${ABSL_INTERNAL_TEST_DLL_OUTPUT} 0 PARENT_SCOPE) - endif() -endfunction() - -function(absl_internal_dll_targets) - cmake_parse_arguments(ABSL_INTERNAL_DLL - "" - "OUTPUT" - "DEPS" - ${ARGN} - ) - - set(_deps "") - foreach(dep IN LISTS ABSL_INTERNAL_DLL_DEPS) - absl_internal_dll_contains(TARGET ${dep} OUTPUT _dll_contains) - absl_internal_test_dll_contains(TARGET ${dep} OUTPUT _test_dll_contains) - if (_dll_contains) - list(APPEND _deps abseil_dll) - elseif (_test_dll_contains) - list(APPEND _deps abseil_test_dll) - else() - list(APPEND _deps ${dep}) - endif() - endforeach() - - # Because we may have added the DLL multiple times - list(REMOVE_DUPLICATES _deps) - set(${ABSL_INTERNAL_DLL_OUTPUT} "${_deps}" PARENT_SCOPE) -endfunction() - -function(absl_make_dll) - cmake_parse_arguments(ABSL_INTERNAL_MAKE_DLL - "" - "TEST" - "" - ${ARGN} - ) - - if (ABSL_INTERNAL_MAKE_DLL_TEST) - set(_dll "abseil_test_dll") - set(_dll_files ${ABSL_INTERNAL_TEST_DLL_FILES}) - set(_dll_libs "abseil_dll" "GTest::gtest" "GTest::gmock") - set(_dll_compile_definitions "GTEST_LINKED_AS_SHARED_LIBRARY=1") - set(_dll_includes ${absl_gtest_src_dir}/googletest/include ${absl_gtest_src_dir}/googlemock/include) - set(_dll_consume "ABSL_CONSUME_TEST_DLL") - set(_dll_build "ABSL_BUILD_TEST_DLL") - else() - set(_dll "abseil_dll") - set(_dll_files ${ABSL_INTERNAL_DLL_FILES}) - set(_dll_libs "") - set(_dll_compile_definitions "") - set(_dll_includes "") - set(_dll_consume "ABSL_CONSUME_DLL") - set(_dll_build "ABSL_BUILD_DLL") - endif() - - add_library( - ${_dll} - SHARED - ${_dll_files} - ) - target_link_libraries( - ${_dll} - PRIVATE - ${_dll_libs} - ${ABSL_DEFAULT_LINKOPTS} - ) - set_property(TARGET ${_dll} PROPERTY LINKER_LANGUAGE "CXX") - target_include_directories( - ${_dll} - PUBLIC - "$" - $ - PRIVATE - ${_dll_includes} - ) - - target_compile_options( - ${_dll} - PRIVATE - ${ABSL_DEFAULT_COPTS} - ) - - foreach(cflag ${ABSL_CC_LIB_COPTS}) - if(${cflag} MATCHES "^(-Wno|/wd)") - # These flags are needed to suppress warnings that might fire in our headers. - set(PC_CFLAGS "${PC_CFLAGS} ${cflag}") - elseif(${cflag} MATCHES "^(-W|/w[1234eo])") - # Don't impose our warnings on others. - else() - set(PC_CFLAGS "${PC_CFLAGS} ${cflag}") - endif() - endforeach() - string(REPLACE ";" " " PC_LINKOPTS "${ABSL_CC_LIB_LINKOPTS}") - - FILE(GENERATE OUTPUT "${CMAKE_BINARY_DIR}/lib/pkgconfig/${_dll}.pc" CONTENT "\ -prefix=${CMAKE_INSTALL_PREFIX}\n\ -exec_prefix=\${prefix}\n\ -libdir=${CMAKE_INSTALL_FULL_LIBDIR}\n\ -includedir=${CMAKE_INSTALL_FULL_INCLUDEDIR}\n\ -\n\ -Name: ${_dll}\n\ -Description: Abseil DLL library\n\ -URL: https://abseil.io/\n\ -Version: ${absl_VERSION}\n\ -Libs: -L\${libdir} ${PC_LINKOPTS} $<$>:-l${_dll}>\n\ -Cflags: -I\${includedir}${PC_CFLAGS}\n") - INSTALL(FILES "${CMAKE_BINARY_DIR}/lib/pkgconfig/${_dll}.pc" - DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig") - - target_compile_definitions( - ${_dll} - PUBLIC - ${_dll_compile_definitions} - PRIVATE - ${_dll_build} - NOMINMAX - INTERFACE - ${ABSL_CC_LIB_DEFINES} - ${_dll_consume} - ) - - if(ABSL_PROPAGATE_CXX_STD) - # Abseil libraries require C++14 as the current minimum standard. When - # compiled with C++17 (either because it is the compiler's default or - # explicitly requested), then Abseil requires C++17. - _absl_target_compile_features_if_available(${_NAME} PUBLIC ${ABSL_INTERNAL_CXX_STD_FEATURE}) - else() - # Note: This is legacy (before CMake 3.8) behavior. Setting the - # target-level CXX_STANDARD property to ABSL_CXX_STANDARD (which is - # initialized by CMAKE_CXX_STANDARD) should have no real effect, since - # that is the default value anyway. - # - # CXX_STANDARD_REQUIRED does guard against the top-level CMake project - # not having enabled CMAKE_CXX_STANDARD_REQUIRED (which prevents - # "decaying" to an older standard if the requested one isn't available). - set_property(TARGET ${_NAME} PROPERTY CXX_STANDARD ${ABSL_CXX_STANDARD}) - set_property(TARGET ${_NAME} PROPERTY CXX_STANDARD_REQUIRED ON) - endif() - - install(TARGETS ${_dll} EXPORT ${PROJECT_NAME}Targets - RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR} - LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} - ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR} - ) -endfunction() diff --git a/src/third_party/abseil-cpp/CMake/AbseilHelpers.cmake b/src/third_party/abseil-cpp/CMake/AbseilHelpers.cmake deleted file mode 100644 index 6d059e7e86..0000000000 --- a/src/third_party/abseil-cpp/CMake/AbseilHelpers.cmake +++ /dev/null @@ -1,470 +0,0 @@ -# -# Copyright 2017 The Abseil Authors. -# -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at -# -# https://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. -# - -include(CMakeParseArguments) -include(AbseilConfigureCopts) -include(AbseilDll) - -# The IDE folder for Abseil that will be used if Abseil is included in a CMake -# project that sets -# set_property(GLOBAL PROPERTY USE_FOLDERS ON) -# For example, Visual Studio supports folders. -if(NOT DEFINED ABSL_IDE_FOLDER) - set(ABSL_IDE_FOLDER Abseil) -endif() - -if(ABSL_USE_SYSTEM_INCLUDES) - set(ABSL_INTERNAL_INCLUDE_WARNING_GUARD SYSTEM) -else() - set(ABSL_INTERNAL_INCLUDE_WARNING_GUARD "") -endif() - -# absl_cc_library() -# -# CMake function to imitate Bazel's cc_library rule. -# -# Parameters: -# NAME: name of target (see Note) -# HDRS: List of public header files for the library -# SRCS: List of source files for the library -# DEPS: List of other libraries to be linked in to the binary targets -# COPTS: List of private compile options -# DEFINES: List of public defines -# LINKOPTS: List of link options -# PUBLIC: Add this so that this library will be exported under absl:: -# Also in IDE, target will appear in Abseil folder while non PUBLIC will be in Abseil/internal. -# TESTONLY: When added, this target will only be built if both -# BUILD_TESTING=ON and ABSL_BUILD_TESTING=ON. -# -# Note: -# By default, absl_cc_library will always create a library named absl_${NAME}, -# and alias target absl::${NAME}. The absl:: form should always be used. -# This is to reduce namespace pollution. -# -# absl_cc_library( -# NAME -# awesome -# HDRS -# "a.h" -# SRCS -# "a.cc" -# ) -# absl_cc_library( -# NAME -# fantastic_lib -# SRCS -# "b.cc" -# DEPS -# absl::awesome # not "awesome" ! -# PUBLIC -# ) -# -# absl_cc_library( -# NAME -# main_lib -# ... -# DEPS -# absl::fantastic_lib -# ) -# -# TODO: Implement "ALWAYSLINK" -function(absl_cc_library) - cmake_parse_arguments(ABSL_CC_LIB - "DISABLE_INSTALL;PUBLIC;TESTONLY" - "NAME" - "HDRS;SRCS;COPTS;DEFINES;LINKOPTS;DEPS" - ${ARGN} - ) - - if(ABSL_CC_LIB_TESTONLY AND - NOT ((BUILD_TESTING AND ABSL_BUILD_TESTING) OR - (ABSL_BUILD_TEST_HELPERS AND ABSL_CC_LIB_PUBLIC))) - return() - endif() - - if(ABSL_ENABLE_INSTALL) - set(_NAME "${ABSL_CC_LIB_NAME}") - else() - set(_NAME "absl_${ABSL_CC_LIB_NAME}") - endif() - - # Check if this is a header-only library - # Note that as of February 2019, many popular OS's (for example, Ubuntu - # 16.04 LTS) only come with cmake 3.5 by default. For this reason, we can't - # use list(FILTER...) - set(ABSL_CC_SRCS "${ABSL_CC_LIB_SRCS}") - foreach(src_file IN LISTS ABSL_CC_SRCS) - if(${src_file} MATCHES ".*\\.(h|inc)") - list(REMOVE_ITEM ABSL_CC_SRCS "${src_file}") - endif() - endforeach() - - if(ABSL_CC_SRCS STREQUAL "") - set(ABSL_CC_LIB_IS_INTERFACE 1) - else() - set(ABSL_CC_LIB_IS_INTERFACE 0) - endif() - - # Determine this build target's relationship to the DLL. It's one of four things: - # 1. "dll" -- This target is part of the DLL - # 2. "dll_dep" -- This target is not part of the DLL, but depends on the DLL. - # Note that we assume any target not in the DLL depends on the - # DLL. This is not a technical necessity but a convenience - # which happens to be true, because nearly every target is - # part of the DLL. - # 3. "shared" -- This is a shared library, perhaps on a non-windows platform - # where DLL doesn't make sense. - # 4. "static" -- This target does not depend on the DLL and should be built - # statically. - if (${ABSL_BUILD_DLL}) - if(ABSL_ENABLE_INSTALL) - absl_internal_dll_contains(TARGET ${_NAME} OUTPUT _in_dll) - absl_internal_test_dll_contains(TARGET ${_NAME} OUTPUT _in_test_dll) - else() - absl_internal_dll_contains(TARGET ${ABSL_CC_LIB_NAME} OUTPUT _in_dll) - absl_internal_test_dll_contains(TARGET ${ABSL_CC_LIB_NAME} OUTPUT _in_test_dll) - endif() - if (${_in_dll} OR ${_in_test_dll}) - # This target should be replaced by the DLL - set(_build_type "dll") - set(ABSL_CC_LIB_IS_INTERFACE 1) - else() - # Building a DLL, but this target is not part of the DLL - set(_build_type "dll_dep") - endif() - elseif(BUILD_SHARED_LIBS) - set(_build_type "shared") - else() - set(_build_type "static") - endif() - - # Generate a pkg-config file for every library: - if(ABSL_ENABLE_INSTALL) - if(NOT ABSL_CC_LIB_TESTONLY) - if(absl_VERSION) - set(PC_VERSION "${absl_VERSION}") - else() - set(PC_VERSION "head") - endif() - if(NOT _build_type STREQUAL "dll") - set(LNK_LIB "${LNK_LIB} -labsl_${_NAME}") - endif() - foreach(dep ${ABSL_CC_LIB_DEPS}) - if(${dep} MATCHES "^absl::(.*)") - # for DLL builds many libs are not created, but add - # the pkgconfigs nevertheless, pointing to the dll. - if(_build_type STREQUAL "dll") - # hide this MATCHES in an if-clause so it doesn't overwrite - # the CMAKE_MATCH_1 from (${dep} MATCHES "^absl::(.*)") - if(NOT PC_DEPS MATCHES "abseil_dll") - # Join deps with commas. - if(PC_DEPS) - set(PC_DEPS "${PC_DEPS},") - endif() - # don't duplicate dll-dep if it exists already - set(PC_DEPS "${PC_DEPS} abseil_dll = ${PC_VERSION}") - set(LNK_LIB "${LNK_LIB} -labseil_dll") - endif() - else() - # Join deps with commas. - if(PC_DEPS) - set(PC_DEPS "${PC_DEPS},") - endif() - set(PC_DEPS "${PC_DEPS} absl_${CMAKE_MATCH_1} = ${PC_VERSION}") - endif() - endif() - endforeach() - foreach(cflag ${ABSL_CC_LIB_COPTS}) - if(${cflag} MATCHES "^(-Wno|/wd)") - # These flags are needed to suppress warnings that might fire in our headers. - set(PC_CFLAGS "${PC_CFLAGS} ${cflag}") - elseif(${cflag} MATCHES "^(-W|/w[1234eo])") - # Don't impose our warnings on others. - elseif(${cflag} MATCHES "^-m") - # Don't impose CPU instruction requirements on others, as - # the code performs feature detection on runtime. - else() - set(PC_CFLAGS "${PC_CFLAGS} ${cflag}") - endif() - endforeach() - string(REPLACE ";" " " PC_LINKOPTS "${ABSL_CC_LIB_LINKOPTS}") - FILE(GENERATE OUTPUT "${CMAKE_BINARY_DIR}/lib/pkgconfig/absl_${_NAME}.pc" CONTENT "\ -prefix=${CMAKE_INSTALL_PREFIX}\n\ -exec_prefix=\${prefix}\n\ -libdir=${CMAKE_INSTALL_FULL_LIBDIR}\n\ -includedir=${CMAKE_INSTALL_FULL_INCLUDEDIR}\n\ -\n\ -Name: absl_${_NAME}\n\ -Description: Abseil ${_NAME} library\n\ -URL: https://abseil.io/\n\ -Version: ${PC_VERSION}\n\ -Requires:${PC_DEPS}\n\ -Libs: -L\${libdir} ${PC_LINKOPTS} $<$>:${LNK_LIB}>\n\ -Cflags: -I\${includedir}${PC_CFLAGS}\n") - INSTALL(FILES "${CMAKE_BINARY_DIR}/lib/pkgconfig/absl_${_NAME}.pc" - DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig") - endif() - endif() - - if(NOT ABSL_CC_LIB_IS_INTERFACE) - if(_build_type STREQUAL "dll_dep") - # This target depends on the DLL. When adding dependencies to this target, - # any depended-on-target which is contained inside the DLL is replaced - # with a dependency on the DLL. - add_library(${_NAME} STATIC "") - target_sources(${_NAME} PRIVATE ${ABSL_CC_LIB_SRCS} ${ABSL_CC_LIB_HDRS}) - absl_internal_dll_targets( - DEPS ${ABSL_CC_LIB_DEPS} - OUTPUT _dll_deps - ) - target_link_libraries(${_NAME} - PUBLIC ${_dll_deps} - PRIVATE - ${ABSL_CC_LIB_LINKOPTS} - ${ABSL_DEFAULT_LINKOPTS} - ) - - if (ABSL_CC_LIB_TESTONLY) - set(_gtest_link_define "GTEST_LINKED_AS_SHARED_LIBRARY=1") - else() - set(_gtest_link_define) - endif() - - target_compile_definitions(${_NAME} - PUBLIC - ABSL_CONSUME_DLL - "${_gtest_link_define}" - ) - - elseif(_build_type STREQUAL "static" OR _build_type STREQUAL "shared") - add_library(${_NAME} "") - target_sources(${_NAME} PRIVATE ${ABSL_CC_LIB_SRCS} ${ABSL_CC_LIB_HDRS}) - target_link_libraries(${_NAME} - PUBLIC ${ABSL_CC_LIB_DEPS} - PRIVATE - ${ABSL_CC_LIB_LINKOPTS} - ${ABSL_DEFAULT_LINKOPTS} - ) - else() - message(FATAL_ERROR "Invalid build type: ${_build_type}") - endif() - - # Linker language can be inferred from sources, but in the case of DLLs we - # don't have any .cc files so it would be ambiguous. We could set it - # explicitly only in the case of DLLs but, because "CXX" is always the - # correct linker language for static or for shared libraries, we set it - # unconditionally. - set_property(TARGET ${_NAME} PROPERTY LINKER_LANGUAGE "CXX") - - target_include_directories(${_NAME} ${ABSL_INTERNAL_INCLUDE_WARNING_GUARD} - PUBLIC - "$" - $ - ) - target_compile_options(${_NAME} - PRIVATE ${ABSL_CC_LIB_COPTS}) - target_compile_definitions(${_NAME} PUBLIC ${ABSL_CC_LIB_DEFINES}) - - # Add all Abseil targets to a a folder in the IDE for organization. - if(ABSL_CC_LIB_PUBLIC) - set_property(TARGET ${_NAME} PROPERTY FOLDER ${ABSL_IDE_FOLDER}) - elseif(ABSL_CC_LIB_TESTONLY) - set_property(TARGET ${_NAME} PROPERTY FOLDER ${ABSL_IDE_FOLDER}/test) - else() - set_property(TARGET ${_NAME} PROPERTY FOLDER ${ABSL_IDE_FOLDER}/internal) - endif() - - if(ABSL_PROPAGATE_CXX_STD) - # Abseil libraries require C++14 as the current minimum standard. When - # compiled with C++17 (either because it is the compiler's default or - # explicitly requested), then Abseil requires C++17. - _absl_target_compile_features_if_available(${_NAME} PUBLIC ${ABSL_INTERNAL_CXX_STD_FEATURE}) - else() - # Note: This is legacy (before CMake 3.8) behavior. Setting the - # target-level CXX_STANDARD property to ABSL_CXX_STANDARD (which is - # initialized by CMAKE_CXX_STANDARD) should have no real effect, since - # that is the default value anyway. - # - # CXX_STANDARD_REQUIRED does guard against the top-level CMake project - # not having enabled CMAKE_CXX_STANDARD_REQUIRED (which prevents - # "decaying" to an older standard if the requested one isn't available). - set_property(TARGET ${_NAME} PROPERTY CXX_STANDARD ${ABSL_CXX_STANDARD}) - set_property(TARGET ${_NAME} PROPERTY CXX_STANDARD_REQUIRED ON) - endif() - - # When being installed, we lose the absl_ prefix. We want to put it back - # to have properly named lib files. This is a no-op when we are not being - # installed. - if(ABSL_ENABLE_INSTALL) - set_target_properties(${_NAME} PROPERTIES - OUTPUT_NAME "absl_${_NAME}" - SOVERSION "2301.0.0" - ) - endif() - else() - # Generating header-only library - add_library(${_NAME} INTERFACE) - target_include_directories(${_NAME} ${ABSL_INTERNAL_INCLUDE_WARNING_GUARD} - INTERFACE - "$" - $ - ) - - if (_build_type STREQUAL "dll") - set(ABSL_CC_LIB_DEPS abseil_dll) - endif() - - target_link_libraries(${_NAME} - INTERFACE - ${ABSL_CC_LIB_DEPS} - ${ABSL_CC_LIB_LINKOPTS} - ${ABSL_DEFAULT_LINKOPTS} - ) - target_compile_definitions(${_NAME} INTERFACE ${ABSL_CC_LIB_DEFINES}) - - if(ABSL_PROPAGATE_CXX_STD) - # Abseil libraries require C++14 as the current minimum standard. - # Top-level application CMake projects should ensure a consistent C++ - # standard for all compiled sources by setting CMAKE_CXX_STANDARD. - _absl_target_compile_features_if_available(${_NAME} INTERFACE ${ABSL_INTERNAL_CXX_STD_FEATURE}) - - # (INTERFACE libraries can't have the CXX_STANDARD property set, so there - # is no legacy behavior else case). - endif() - endif() - - # TODO currently we don't install googletest alongside abseil sources, so - # installed abseil can't be tested. - if(NOT ABSL_CC_LIB_TESTONLY AND ABSL_ENABLE_INSTALL) - install(TARGETS ${_NAME} EXPORT ${PROJECT_NAME}Targets - RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR} - LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} - ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR} - ) - endif() - - add_library(absl::${ABSL_CC_LIB_NAME} ALIAS ${_NAME}) -endfunction() - -# absl_cc_test() -# -# CMake function to imitate Bazel's cc_test rule. -# -# Parameters: -# NAME: name of target (see Usage below) -# SRCS: List of source files for the binary -# DEPS: List of other libraries to be linked in to the binary targets -# COPTS: List of private compile options -# DEFINES: List of public defines -# LINKOPTS: List of link options -# -# Note: -# By default, absl_cc_test will always create a binary named absl_${NAME}. -# This will also add it to ctest list as absl_${NAME}. -# -# Usage: -# absl_cc_library( -# NAME -# awesome -# HDRS -# "a.h" -# SRCS -# "a.cc" -# PUBLIC -# ) -# -# absl_cc_test( -# NAME -# awesome_test -# SRCS -# "awesome_test.cc" -# DEPS -# absl::awesome -# GTest::gmock -# GTest::gtest_main -# ) -function(absl_cc_test) - if(NOT (BUILD_TESTING AND ABSL_BUILD_TESTING)) - return() - endif() - - cmake_parse_arguments(ABSL_CC_TEST - "" - "NAME" - "SRCS;COPTS;DEFINES;LINKOPTS;DEPS" - ${ARGN} - ) - - set(_NAME "absl_${ABSL_CC_TEST_NAME}") - - add_executable(${_NAME} "") - target_sources(${_NAME} PRIVATE ${ABSL_CC_TEST_SRCS}) - target_include_directories(${_NAME} - PUBLIC ${ABSL_COMMON_INCLUDE_DIRS} - PRIVATE ${absl_gtest_src_dir}/googletest/include ${absl_gtest_src_dir}/googlemock/include - ) - - if (${ABSL_BUILD_DLL}) - target_compile_definitions(${_NAME} - PUBLIC - ${ABSL_CC_TEST_DEFINES} - ABSL_CONSUME_DLL - ABSL_CONSUME_TEST_DLL - GTEST_LINKED_AS_SHARED_LIBRARY=1 - ) - - # Replace dependencies on targets inside the DLL with abseil_dll itself. - absl_internal_dll_targets( - DEPS ${ABSL_CC_TEST_DEPS} - OUTPUT ABSL_CC_TEST_DEPS - ) - else() - target_compile_definitions(${_NAME} - PUBLIC - ${ABSL_CC_TEST_DEFINES} - ) - endif() - target_compile_options(${_NAME} - PRIVATE ${ABSL_CC_TEST_COPTS} - ) - - target_link_libraries(${_NAME} - PUBLIC ${ABSL_CC_TEST_DEPS} - PRIVATE ${ABSL_CC_TEST_LINKOPTS} - ) - # Add all Abseil targets to a folder in the IDE for organization. - set_property(TARGET ${_NAME} PROPERTY FOLDER ${ABSL_IDE_FOLDER}/test) - - if(ABSL_PROPAGATE_CXX_STD) - # Abseil libraries require C++14 as the current minimum standard. - # Top-level application CMake projects should ensure a consistent C++ - # standard for all compiled sources by setting CMAKE_CXX_STANDARD. - _absl_target_compile_features_if_available(${_NAME} PUBLIC ${ABSL_INTERNAL_CXX_STD_FEATURE}) - else() - # Note: This is legacy (before CMake 3.8) behavior. Setting the - # target-level CXX_STANDARD property to ABSL_CXX_STANDARD (which is - # initialized by CMAKE_CXX_STANDARD) should have no real effect, since - # that is the default value anyway. - # - # CXX_STANDARD_REQUIRED does guard against the top-level CMake project - # not having enabled CMAKE_CXX_STANDARD_REQUIRED (which prevents - # "decaying" to an older standard if the requested one isn't available). - set_property(TARGET ${_NAME} PROPERTY CXX_STANDARD ${ABSL_CXX_STANDARD}) - set_property(TARGET ${_NAME} PROPERTY CXX_STANDARD_REQUIRED ON) - endif() - - add_test(NAME ${_NAME} COMMAND ${_NAME}) -endfunction() diff --git a/src/third_party/abseil-cpp/CMake/Googletest/CMakeLists.txt.in b/src/third_party/abseil-cpp/CMake/Googletest/CMakeLists.txt.in deleted file mode 100644 index 75691b1117..0000000000 --- a/src/third_party/abseil-cpp/CMake/Googletest/CMakeLists.txt.in +++ /dev/null @@ -1,14 +0,0 @@ -cmake_minimum_required(VERSION 3.10) - -project(googletest-external NONE) - -include(ExternalProject) -ExternalProject_Add(googletest - URL "${absl_gtest_download_url}" # May be empty - SOURCE_DIR "${absl_gtest_src_dir}" - BINARY_DIR "${absl_gtest_build_dir}" - CONFIGURE_COMMAND "" - BUILD_COMMAND "" - INSTALL_COMMAND "" - TEST_COMMAND "" -) diff --git a/src/third_party/abseil-cpp/CMake/Googletest/DownloadGTest.cmake b/src/third_party/abseil-cpp/CMake/Googletest/DownloadGTest.cmake deleted file mode 100644 index 9d071c9170..0000000000 --- a/src/third_party/abseil-cpp/CMake/Googletest/DownloadGTest.cmake +++ /dev/null @@ -1,41 +0,0 @@ -# Integrates googletest at configure time. Based on the instructions at -# https://github.com/google/googletest/tree/master/googletest#incorporating-into-an-existing-cmake-project - -# Set up the external googletest project, downloading the latest from Github -# master if requested. -configure_file( - ${CMAKE_CURRENT_LIST_DIR}/CMakeLists.txt.in - ${CMAKE_BINARY_DIR}/googletest-external/CMakeLists.txt -) - -set(ABSL_SAVE_CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS}) -set(ABSL_SAVE_CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}) -if (BUILD_SHARED_LIBS) - set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin) - set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DGTEST_CREATE_SHARED_LIBRARY=1") -endif() - -# Configure and build the googletest source. -execute_process(COMMAND ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}" . - RESULT_VARIABLE result - WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/googletest-external ) -if(result) - message(FATAL_ERROR "CMake step for googletest failed: ${result}") -endif() - -execute_process(COMMAND ${CMAKE_COMMAND} --build . - RESULT_VARIABLE result - WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/googletest-external) -if(result) - message(FATAL_ERROR "Build step for googletest failed: ${result}") -endif() - -set(CMAKE_CXX_FLAGS ${ABSL_SAVE_CMAKE_CXX_FLAGS}) -set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${ABSL_SAVE_CMAKE_RUNTIME_OUTPUT_DIRECTORY}) - -# Prevent overriding the parent project's compiler/linker settings on Windows -set(gtest_force_shared_crt ON CACHE BOOL "" FORCE) - -# Add googletest directly to our build. This defines the gtest and gtest_main -# targets. -add_subdirectory(${absl_gtest_src_dir} ${absl_gtest_build_dir} EXCLUDE_FROM_ALL) diff --git a/src/third_party/abseil-cpp/CMake/README.md b/src/third_party/abseil-cpp/CMake/README.md deleted file mode 100644 index 19fb327cfe..0000000000 --- a/src/third_party/abseil-cpp/CMake/README.md +++ /dev/null @@ -1,188 +0,0 @@ -# Abseil CMake Build Instructions - -Abseil comes with a CMake build script ([CMakeLists.txt](../CMakeLists.txt)) -that can be used on a wide range of platforms ("C" stands for cross-platform.). -If you don't have CMake installed already, you can download it for free from -. - -CMake works by generating native makefiles or build projects that can -be used in the compiler environment of your choice. - -For API/ABI compatibility reasons, we strongly recommend building Abseil in a -subdirectory of your project or as an embedded dependency. - -## Incorporating Abseil Into a CMake Project - -The recommendations below are similar to those for using CMake within the -googletest framework -() - -### Step-by-Step Instructions - -1. If you want to build the Abseil tests, integrate the Abseil dependency -[Google Test](https://github.com/google/googletest) into your CMake -project. To disable Abseil tests, you have to pass either -`-DBUILD_TESTING=OFF` or `-DABSL_BUILD_TESTING=OFF` when configuring your -project with CMake. - -2. Download Abseil and copy it into a subdirectory in your CMake project or add -Abseil as a [git submodule](https://git-scm.com/docs/git-submodule) in your -CMake project. - -3. You can then use the CMake command -[`add_subdirectory()`](https://cmake.org/cmake/help/latest/command/add_subdirectory.html) -to include Abseil directly in your CMake project. - -4. Add the **absl::** target you wish to use to the -[`target_link_libraries()`](https://cmake.org/cmake/help/latest/command/target_link_libraries.html) -section of your executable or of your library.
-Here is a short CMakeLists.txt example of an application project using Abseil. - -```cmake -cmake_minimum_required(VERSION 3.10) -project(my_app_project) - -# Pick the C++ standard to compile with. -# Abseil currently supports C++14, C++17, and C++20. -set(CMAKE_CXX_STANDARD 14) -set(CMAKE_CXX_STANDARD_REQUIRED ON) - -add_subdirectory(abseil-cpp) - -add_executable(my_exe source.cpp) -target_link_libraries(my_exe absl::base absl::synchronization absl::strings) -``` - -Note that if you are developing a library designed for use by other clients, you -should instead leave `CMAKE_CXX_STANDARD` unset (or only set if being built as -the current top-level CMake project) and configure the minimum required C++ -standard at the target level. If you require a later minimum C++ standard than -Abseil does, it's a good idea to also enforce that `CMAKE_CXX_STANDARD` (which -will control Abseil library targets) is set to at least that minimum. For -example: - -```cmake -cmake_minimum_required(VERSION 3.10) -project(my_lib_project) - -# Leave C++ standard up to the root application, so set it only if this is the -# current top-level CMake project. -if(CMAKE_SOURCE_DIR STREQUAL my_lib_project_SOURCE_DIR) - set(CMAKE_CXX_STANDARD 17) - set(CMAKE_CXX_STANDARD_REQUIRED ON) -endif() - -add_subdirectory(abseil-cpp) - -add_library(my_lib source.cpp) -target_link_libraries(my_lib absl::base absl::synchronization absl::strings) - -# Enforce that my_lib requires C++17. Important to document for clients that they -# must set CMAKE_CXX_STANDARD to 17 or higher for proper Abseil ABI compatibility -# (since otherwise, Abseil library targets could be compiled with a lower C++ -# standard than my_lib). -target_compile_features(my_lib PUBLIC cxx_std_17) -if(CMAKE_CXX_STANDARD LESS 17) - message(FATAL_ERROR - "my_lib_project requires CMAKE_CXX_STANDARD >= 17 (got: ${CMAKE_CXX_STANDARD})") -endif() -``` - -Then the top-level application project that uses your library is responsible for -setting a consistent `CMAKE_CXX_STANDARD` that is sufficiently high. - -### Running Abseil Tests with CMake - -Use the `-DABSL_BUILD_TESTING=ON` flag to run Abseil tests. Note that -BUILD_TESTING must also be on (the default). - -You will need to provide Abseil with a Googletest dependency. There are two -options for how to do this: - -* Use `-DABSL_USE_GOOGLETEST_HEAD`. This will automatically download the latest -Googletest source into the build directory at configure time. Googletest will -then be compiled directly alongside Abseil's tests. -* Manually integrate Googletest with your build. See -https://github.com/google/googletest/blob/master/googletest/README.md#using-cmake -for more information on using Googletest in a CMake project. - -For example, to run just the Abseil tests, you could use this script: - -``` -cd path/to/abseil-cpp -mkdir build -cd build -cmake -DABSL_BUILD_TESTING=ON -DABSL_USE_GOOGLETEST_HEAD=ON .. -make -j -ctest -``` - -Currently, we only run our tests with CMake in a Linux environment, but we are -working on the rest of our supported platforms. See -https://github.com/abseil/abseil-cpp/projects/1 and -https://github.com/abseil/abseil-cpp/issues/109 for more information. - -### Available Abseil CMake Public Targets - -Here's a non-exhaustive list of Abseil CMake public targets: - -```cmake -absl::algorithm -absl::base -absl::debugging -absl::flat_hash_map -absl::flags -absl::memory -absl::meta -absl::numeric -absl::random_random -absl::strings -absl::synchronization -absl::time -absl::utility -``` - -## Traditional CMake Set-Up - -For larger projects, it may make sense to use the traditional CMake set-up where you build and install projects separately. - -First, you'd need to build and install Google Test: -``` -cmake -S /source/googletest -B /build/googletest -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/installation/dir -DBUILD_GMOCK=ON -cmake --build /build/googletest --target install -``` - -Then you need to configure and build Abseil. Make sure you enable `ABSL_USE_EXTERNAL_GOOGLETEST` and `ABSL_FIND_GOOGLETEST`. You also need to enable `ABSL_ENABLE_INSTALL` so that you can install Abseil itself. -``` -cmake -S /source/abseil-cpp -B /build/abseil-cpp -DCMAKE_PREFIX_PATH=/installation/dir -DCMAKE_INSTALL_PREFIX=/installation/dir -DABSL_ENABLE_INSTALL=ON -DABSL_USE_EXTERNAL_GOOGLETEST=ON -DABSL_FIND_GOOGLETEST=ON -cmake --build /temporary/build/abseil-cpp -``` - -(`CMAKE_PREFIX_PATH` is where you already have Google Test installed; `CMAKE_INSTALL_PREFIX` is where you want to have Abseil installed; they can be different.) - -Run the tests: -``` -ctest --test-dir /temporary/build/abseil-cpp -``` - -And finally install: -``` -cmake --build /temporary/build/abseil-cpp --target install -``` - -# CMake Option Synposis - -## Enable Standard CMake Installation - -`-DABSL_ENABLE_INSTALL=ON` - -## Google Test Options - -`-DABSL_BUILD_TESTING=ON` must be set to enable testing - -- Have Abseil download and build Google Test for you: `-DABSL_USE_EXTERNAL_GOOGLETEST=OFF` (default) - - Download and build latest Google Test: `-DABSL_USE_GOOGLETEST_HEAD=ON` - - Download specific Google Test version (ZIP archive): `-DABSL_GOOGLETEST_DOWNLOAD_URL=https://.../version.zip` - - Use Google Test from specific local directory: `-DABSL_LOCAL_GOOGLETEST_DIR=/path/to/googletest` -- Use Google Test included elsewhere in your project: `-DABSL_USE_EXTERNAL_GOOGLETEST=ON` -- Use standard CMake `find_package(CTest)` to find installed Google Test: `-DABSL_USE_EXTERNAL_GOOGLETEST=ON -DABSL_FIND_GOOGLETEST=ON` diff --git a/src/third_party/abseil-cpp/CMake/abslConfig.cmake.in b/src/third_party/abseil-cpp/CMake/abslConfig.cmake.in deleted file mode 100644 index 62d246d01e..0000000000 --- a/src/third_party/abseil-cpp/CMake/abslConfig.cmake.in +++ /dev/null @@ -1,8 +0,0 @@ -# absl CMake configuration file. - -include(CMakeFindDependencyMacro) -find_dependency(Threads) - -@PACKAGE_INIT@ - -include ("${CMAKE_CURRENT_LIST_DIR}/@PROJECT_NAME@Targets.cmake") diff --git a/src/third_party/abseil-cpp/CMake/install_test_project/CMakeLists.txt b/src/third_party/abseil-cpp/CMake/install_test_project/CMakeLists.txt deleted file mode 100644 index 30c23b2c6b..0000000000 --- a/src/third_party/abseil-cpp/CMake/install_test_project/CMakeLists.txt +++ /dev/null @@ -1,25 +0,0 @@ -# -# Copyright 2019 The Abseil Authors. -# -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at -# -# https://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. - -# A simple CMakeLists.txt for testing cmake installation - -cmake_minimum_required(VERSION 3.10) -project(absl_cmake_testing CXX) - -add_executable(simple simple.cc) - -find_package(absl REQUIRED) - -target_link_libraries(simple absl::strings absl::config) diff --git a/src/third_party/abseil-cpp/CMake/install_test_project/simple.cc b/src/third_party/abseil-cpp/CMake/install_test_project/simple.cc deleted file mode 100644 index 7daa7f0901..0000000000 --- a/src/third_party/abseil-cpp/CMake/install_test_project/simple.cc +++ /dev/null @@ -1,32 +0,0 @@ -// -// Copyright 2019 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include -#include "absl/base/config.h" -#include "absl/strings/substitute.h" - -#if !defined(ABSL_LTS_RELEASE_VERSION) || ABSL_LTS_RELEASE_VERSION != 99998877 -#error ABSL_LTS_RELEASE_VERSION is not set correctly. -#endif - -#if !defined(ABSL_LTS_RELEASE_PATCH_LEVEL) || ABSL_LTS_RELEASE_PATCH_LEVEL != 0 -#error ABSL_LTS_RELEASE_PATCH_LEVEL is not set correctly. -#endif - -int main(int argc, char** argv) { - for (int i = 0; i < argc; ++i) { - std::cout << absl::Substitute("Arg $0: $1\n", i, argv[i]); - } -} diff --git a/src/third_party/abseil-cpp/CMake/install_test_project/test.sh b/src/third_party/abseil-cpp/CMake/install_test_project/test.sh deleted file mode 100755 index cc028bac86..0000000000 --- a/src/third_party/abseil-cpp/CMake/install_test_project/test.sh +++ /dev/null @@ -1,112 +0,0 @@ -#!/bin/bash -# -# Copyright 2019 The Abseil Authors. -# -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at -# -# https://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. -# -# Unit and integration tests for Abseil LTS CMake installation - -# Fail on any error. Treat unset variables an error. Print commands as executed. -set -euox pipefail - -absl_dir=/abseil-cpp -absl_build_dir=/buildfs -googletest_builddir=/googletest_builddir -project_dir="${absl_dir}"/CMake/install_test_project -project_build_dir=/buildfs/project-build - -build_shared_libs="OFF" -if [ "${LINK_TYPE:-}" = "DYNAMIC" ]; then - build_shared_libs="ON" -fi - -# Build and install GoogleTest -mkdir "${googletest_builddir}" -pushd "${googletest_builddir}" -curl -L "${ABSL_GOOGLETEST_DOWNLOAD_URL}" --output "${ABSL_GOOGLETEST_COMMIT}".zip -unzip "${ABSL_GOOGLETEST_COMMIT}".zip -pushd "googletest-${ABSL_GOOGLETEST_COMMIT}" -mkdir build -pushd build -cmake -DCMAKE_BUILD_TYPE=Release -DBUILD_SHARED_LIBS="${build_shared_libs}" .. -make -j $(nproc) -make install -ldconfig -popd -popd -popd - -# Run the LTS transformations -./create_lts.py 99998877 - -# Build and install Abseil -pushd "${absl_build_dir}" -cmake "${absl_dir}" \ - -DABSL_USE_EXTERNAL_GOOGLETEST=ON \ - -DABSL_FIND_GOOGLETEST=ON \ - -DCMAKE_BUILD_TYPE=Release \ - -DABSL_BUILD_TESTING=ON \ - -DBUILD_SHARED_LIBS="${build_shared_libs}" -make -j $(nproc) -ctest -j $(nproc) --output-on-failure -make install -ldconfig -popd - -# Test the project against the installed Abseil -mkdir -p "${project_build_dir}" -pushd "${project_build_dir}" -cmake "${project_dir}" -cmake --build . --target simple - -output="$(${project_build_dir}/simple "printme" 2>&1)" -if [[ "${output}" != *"Arg 1: printme"* ]]; then - echo "Faulty output on simple project:" - echo "${output}" - exit 1 -fi - -popd - -if ! grep absl::strings "/usr/local/lib/cmake/absl/abslTargets.cmake"; then - cat "/usr/local/lib/cmake/absl/abslTargets.cmake" - echo "CMake targets named incorrectly" - exit 1 -fi - -pushd "${HOME}" -cat > hello-abseil.cc << EOF -#include - -#include "absl/strings/str_format.h" - -int main(int argc, char **argv) { - absl::PrintF("Hello Abseil!\n"); - return EXIT_SUCCESS; -} -EOF - -if [ "${LINK_TYPE:-}" != "DYNAMIC" ]; then - pc_args=($(pkg-config --cflags --libs --static absl_str_format)) - g++ -static -o hello-abseil hello-abseil.cc "${pc_args[@]}" -else - pc_args=($(pkg-config --cflags --libs absl_str_format)) - g++ -o hello-abseil hello-abseil.cc "${pc_args[@]}" -fi -hello="$(./hello-abseil)" -[[ "${hello}" == "Hello Abseil!" ]] - -popd - -echo "Install test complete!" -exit 0 diff --git a/src/third_party/abseil-cpp/CMakeLists.txt b/src/third_party/abseil-cpp/CMakeLists.txt deleted file mode 100644 index 65d7fda97d..0000000000 --- a/src/third_party/abseil-cpp/CMakeLists.txt +++ /dev/null @@ -1,239 +0,0 @@ -# -# Copyright 2017 The Abseil Authors. -# -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at -# -# https://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. -# - -# https://github.com/google/oss-policies-info/blob/main/foundational-cxx-support-matrix.md -# As of 2022-09-06, CMake 3.10 is the minimum supported version. -cmake_minimum_required(VERSION 3.10) - -# Compiler id for Apple Clang is now AppleClang. -if (POLICY CMP0025) - cmake_policy(SET CMP0025 NEW) -endif (POLICY CMP0025) - -# if command can use IN_LIST -if (POLICY CMP0057) - cmake_policy(SET CMP0057 NEW) -endif (POLICY CMP0057) - -# Project version variables are the empty string if version is unspecified -if (POLICY CMP0048) - cmake_policy(SET CMP0048 NEW) -endif (POLICY CMP0048) - -# option() honor variables -if (POLICY CMP0077) - cmake_policy(SET CMP0077 NEW) -endif (POLICY CMP0077) - -# Allow the user to specify the MSVC runtime -if (POLICY CMP0091) - cmake_policy(SET CMP0091 NEW) -endif (POLICY CMP0091) - -# try_compile() honors the CMAKE_CXX_STANDARD value -if (POLICY CMP0067) - cmake_policy(SET CMP0067 NEW) -endif (POLICY CMP0067) - -project(absl LANGUAGES CXX VERSION 20230125) -include(CTest) - -# Output directory is correct by default for most build setups. However, when -# building Abseil as a DLL, it is important to have the DLL in the same -# directory as the executable using it. Thus, we put all executables in a single -# /bin directory. -set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin) - -# when absl is included as subproject (i.e. using add_subdirectory(abseil-cpp)) -# in the source tree of a project that uses it, install rules are disabled. -if(NOT CMAKE_SOURCE_DIR STREQUAL PROJECT_SOURCE_DIR) - option(ABSL_ENABLE_INSTALL "Enable install rule" OFF) -else() - option(ABSL_ENABLE_INSTALL "Enable install rule" ON) -endif() - -option(ABSL_PROPAGATE_CXX_STD - "Use CMake C++ standard meta features (e.g. cxx_std_14) that propagate to targets that link to Abseil" - ON) # TODO: Default to ON for CMake 3.8 and greater. -if((${CMAKE_VERSION} VERSION_GREATER_EQUAL 3.8) AND (NOT ABSL_PROPAGATE_CXX_STD)) - message(WARNING "A future Abseil release will default ABSL_PROPAGATE_CXX_STD to ON for CMake 3.8 and up. We recommend enabling this option to ensure your project still builds correctly.") -endif() - -option(ABSL_USE_SYSTEM_INCLUDES - "Silence warnings in Abseil headers by marking them as SYSTEM includes" - OFF) - -list(APPEND CMAKE_MODULE_PATH - ${CMAKE_CURRENT_LIST_DIR}/CMake - ${CMAKE_CURRENT_LIST_DIR}/absl/copts -) - -include(CMakePackageConfigHelpers) -include(GNUInstallDirs) -include(AbseilDll) -include(AbseilHelpers) - - -## -## Using absl targets -## -## all public absl targets are -## exported with the absl:: prefix -## -## e.g absl::base absl::synchronization absl::strings .... -## -## DO NOT rely on the internal targets outside of the prefix - - -# include current path -list(APPEND ABSL_COMMON_INCLUDE_DIRS ${CMAKE_CURRENT_SOURCE_DIR}) - -if("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang") - set(ABSL_USING_CLANG ON) -else() - set(ABSL_USING_CLANG OFF) -endif() - -# find dependencies -## pthread -find_package(Threads REQUIRED) - -include(CMakeDependentOption) - -option(ABSL_BUILD_TESTING - "If ON, Abseil will build all of Abseil's own tests." OFF) - -option(ABSL_BUILD_TEST_HELPERS - "If ON, Abseil will build libraries that you can use to write tests against Abseil code. This option requires that Abseil is configured to use GoogleTest." - OFF) - -option(ABSL_USE_EXTERNAL_GOOGLETEST - "If ON, Abseil will assume that the targets for GoogleTest are already provided by the including project. This makes sense when Abseil is used with add_subdirectory." OFF) - -cmake_dependent_option(ABSL_FIND_GOOGLETEST - "If ON, Abseil will use find_package(GTest) rather than assuming that GoogleTest is already provided by the including project." - ON - "ABSL_USE_EXTERNAL_GOOGLETEST" - OFF) - - -option(ABSL_USE_GOOGLETEST_HEAD - "If ON, abseil will download HEAD from GoogleTest at config time." OFF) - -set(ABSL_GOOGLETEST_DOWNLOAD_URL "" CACHE STRING "If set, download GoogleTest from this URL") - -set(ABSL_LOCAL_GOOGLETEST_DIR "/usr/src/googletest" CACHE PATH - "If ABSL_USE_GOOGLETEST_HEAD is OFF and ABSL_GOOGLETEST_URL is not set, specifies the directory of a local GoogleTest checkout." - ) - -if((BUILD_TESTING AND ABSL_BUILD_TESTING) OR ABSL_BUILD_TEST_HELPERS) - if (ABSL_USE_EXTERNAL_GOOGLETEST) - if (ABSL_FIND_GOOGLETEST) - find_package(GTest REQUIRED) - elseif(NOT TARGET GTest::gtest) - if(TARGET gtest) - # When Google Test is included directly rather than through find_package, the aliases are missing. - add_library(GTest::gtest ALIAS gtest) - add_library(GTest::gtest_main ALIAS gtest_main) - add_library(GTest::gmock ALIAS gmock) - add_library(GTest::gmock_main ALIAS gmock_main) - else() - message(FATAL_ERROR "ABSL_USE_EXTERNAL_GOOGLETEST is ON and ABSL_FIND_GOOGLETEST is OFF, which means that the top-level project must build the Google Test project. However, the target gtest was not found.") - endif() - endif() - else() - set(absl_gtest_build_dir ${CMAKE_BINARY_DIR}/googletest-build) - if(ABSL_USE_GOOGLETEST_HEAD AND ABSL_GOOGLETEST_DOWNLOAD_URL) - message(FATAL_ERROR "Do not set both ABSL_USE_GOOGLETEST_HEAD and ABSL_GOOGLETEST_DOWNLOAD_URL") - endif() - if(ABSL_USE_GOOGLETEST_HEAD) - set(absl_gtest_download_url "https://github.com/google/googletest/archive/main.zip") - elseif(ABSL_GOOGLETEST_DOWNLOAD_URL) - set(absl_gtest_download_url ${ABSL_GOOGLETEST_DOWNLOAD_URL}) - endif() - if(absl_gtest_download_url) - set(absl_gtest_src_dir ${CMAKE_BINARY_DIR}/googletest-src) - else() - set(absl_gtest_src_dir ${ABSL_LOCAL_GOOGLETEST_DIR}) - endif() - include(CMake/Googletest/DownloadGTest.cmake) - endif() -endif() - -add_subdirectory(absl) - -if(ABSL_ENABLE_INSTALL) - - - # install as a subdirectory only - install(EXPORT ${PROJECT_NAME}Targets - NAMESPACE absl:: - DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}" - ) - - configure_package_config_file( - CMake/abslConfig.cmake.in - "${PROJECT_BINARY_DIR}/${PROJECT_NAME}Config.cmake" - INSTALL_DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}" - ) - install(FILES "${PROJECT_BINARY_DIR}/${PROJECT_NAME}Config.cmake" - DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}" - ) - - # Abseil only has a version in LTS releases. This mechanism is accomplished - # Abseil's internal Copybara (https://github.com/google/copybara) workflows and - # isn't visible in the CMake buildsystem itself. - if(absl_VERSION) - write_basic_package_version_file( - "${PROJECT_BINARY_DIR}/${PROJECT_NAME}ConfigVersion.cmake" - COMPATIBILITY ExactVersion - ) - - install(FILES "${PROJECT_BINARY_DIR}/${PROJECT_NAME}ConfigVersion.cmake" - DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}" - ) - endif() # absl_VERSION - - install(DIRECTORY absl - DESTINATION ${CMAKE_INSTALL_INCLUDEDIR} - FILES_MATCHING - PATTERN "*.inc" - PATTERN "*.h" - PATTERN "copts" EXCLUDE - PATTERN "testdata" EXCLUDE - ) - - file(READ "absl/base/options.h" ABSL_INTERNAL_OPTIONS_H_CONTENTS) - if (ABSL_INTERNAL_AT_LEAST_CXX17) - string(REGEX REPLACE - "#define ABSL_OPTION_USE_STD_([^ ]*) 2" - "#define ABSL_OPTION_USE_STD_\\1 1" - ABSL_INTERNAL_OPTIONS_H_PINNED - "${ABSL_INTERNAL_OPTIONS_H_CONTENTS}") - else() - string(REGEX REPLACE - "#define ABSL_OPTION_USE_STD_([^ ]*) 2" - "#define ABSL_OPTION_USE_STD_\\1 0" - ABSL_INTERNAL_OPTIONS_H_PINNED - "${ABSL_INTERNAL_OPTIONS_H_CONTENTS}") - endif() - file(WRITE "${CMAKE_BINARY_DIR}/options-pinned.h" "${ABSL_INTERNAL_OPTIONS_H_PINNED}") - - install(FILES "${CMAKE_BINARY_DIR}/options-pinned.h" - DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/absl/base - RENAME "options.h") - -endif() # ABSL_ENABLE_INSTALL diff --git a/src/third_party/abseil-cpp/CONTRIBUTING.md b/src/third_party/abseil-cpp/CONTRIBUTING.md deleted file mode 100644 index 9dadae9376..0000000000 --- a/src/third_party/abseil-cpp/CONTRIBUTING.md +++ /dev/null @@ -1,141 +0,0 @@ -# How to Contribute to Abseil - -We'd love to accept your patches and contributions to this project. There are -just a few small guidelines you need to follow. - -NOTE: If you are new to GitHub, please start by reading [Pull Request -howto](https://help.github.com/articles/about-pull-requests/) - -## Contributor License Agreement - -Contributions to this project must be accompanied by a Contributor License -Agreement. You (or your employer) retain the copyright to your contribution, -this simply gives us permission to use and redistribute your contributions as -part of the project. Head over to to see -your current agreements on file or to sign a new one. - -You generally only need to submit a CLA once, so if you've already submitted one -(even if it was for a different project), you probably don't need to do it -again. - -## Contribution Guidelines - -Potential contributors sometimes ask us if the Abseil project is the appropriate -home for their utility library code or for specific functions implementing -missing portions of the standard. Often, the answer to this question is "no". -We’d like to articulate our thinking on this issue so that our choices can be -understood by everyone and so that contributors can have a better intuition -about whether Abseil might be interested in adopting a new library. - -### Priorities - -Although our mission is to augment the C++ standard library, our goal is not to -provide a full forward-compatible implementation of the latest standard. For us -to consider a library for inclusion in Abseil, it is not enough that a library -is useful. We generally choose to release a library when it meets at least one -of the following criteria: - -* **Widespread usage** - Using our internal codebase to help gauge usage, most - of the libraries we've released have tens of thousands of users. -* **Anticipated widespread usage** - Pre-adoption of some standard-compliant - APIs may not have broad adoption initially but can be expected to pick up - usage when it replaces legacy APIs. `absl::from_chars`, for example, - replaces existing code that converts strings to numbers and will therefore - likely see usage growth. -* **High impact** - APIs that provide a key solution to a specific problem, - such as `absl::FixedArray`, have higher impact than usage numbers may signal - and are released because of their importance. -* **Direct support for a library that falls under one of the above** - When we - want access to a smaller library as an implementation detail for a - higher-priority library we plan to release, we may release it, as we did - with portions of `absl/meta/type_traits.h`. One consequence of this is that - the presence of a library in Abseil does not necessarily mean that other - similar libraries would be a high priority. - -### API Freeze Consequences - -Via the -[Abseil Compatibility Guidelines](https://abseil.io/about/compatibility), we -have promised a large degree of API stability. In particular, we will not make -backward-incompatible changes to released APIs without also shipping a tool or -process that can upgrade our users' code. We are not yet at the point of easily -releasing such tools. Therefore, at this time, shipping a library establishes an -API contract which is borderline unchangeable. (We can add new functionality, -but we cannot easily change existing behavior.) This constraint forces us to -very carefully review all APIs that we ship. - - -## Coding Style - -To keep the source consistent, readable, diffable and easy to merge, we use a -fairly rigid coding style, as defined by the -[google-styleguide](https://github.com/google/styleguide) project. All patches -will be expected to conform to the style outlined -[here](https://google.github.io/styleguide/cppguide.html). - -## Guidelines for Pull Requests - -* If you are a Googler, it is preferable to first create an internal CL and - have it reviewed and submitted. The code propagation process will deliver - the change to GitHub. - -* Create **small PRs** that are narrowly focused on **addressing a single - concern**. We often receive PRs that are trying to fix several things at a - time, but if only one fix is considered acceptable, nothing gets merged and - both author's & review's time is wasted. Create more PRs to address - different concerns and everyone will be happy. - -* For speculative changes, consider opening an [Abseil - issue](https://github.com/abseil/abseil-cpp/issues) and discussing it first. - If you are suggesting a behavioral or API change, consider starting with an - [Abseil proposal template](ABSEIL_ISSUE_TEMPLATE.md). - -* Provide a good **PR description** as a record of **what** change is being - made and **why** it was made. Link to a GitHub issue if it exists. - -* Don't fix code style and formatting unless you are already changing that - line to address an issue. Formatting of modified lines may be done using - `git clang-format`. PRs with irrelevant changes won't be merged. If - you do want to fix formatting or style, do that in a separate PR. - -* Unless your PR is trivial, you should expect there will be reviewer comments - that you'll need to address before merging. We expect you to be reasonably - responsive to those comments, otherwise the PR will be closed after 2-3 - weeks of inactivity. - -* Maintain **clean commit history** and use **meaningful commit messages**. - PRs with messy commit history are difficult to review and won't be merged. - Use `rebase -i upstream/master` to curate your commit history and/or to - bring in latest changes from master (but avoid rebasing in the middle of a - code review). - -* Keep your PR up to date with upstream/master (if there are merge conflicts, - we can't really merge your change). - -* **All tests need to be passing** before your change can be merged. We - recommend you **run tests locally** (see below) - -* Exceptions to the rules can be made if there's a compelling reason for doing - so. That is - the rules are here to serve us, not the other way around, and - the rules need to be serving their intended purpose to be valuable. - -* All submissions, including submissions by project members, require review. - -## Running Tests - -If you have [Bazel](https://bazel.build/) installed, use `bazel test ---test_tag_filters="-benchmark" ...` to run the unit tests. - -If you are running the Linux operating system and have -[Docker](https://www.docker.com/) installed, you can also run the `linux_*.sh` -scripts under the `ci/`(https://github.com/abseil/abseil-cpp/tree/master/ci) -directory to test Abseil under a variety of conditions. - -## Abseil Committers - -The current members of the Abseil engineering team are the only committers at -present. - -## Release Process - -Abseil lives at head, where latest-and-greatest code can be found. diff --git a/src/third_party/abseil-cpp/FAQ.md b/src/third_party/abseil-cpp/FAQ.md deleted file mode 100644 index fbd92ce975..0000000000 --- a/src/third_party/abseil-cpp/FAQ.md +++ /dev/null @@ -1,167 +0,0 @@ -# Abseil FAQ - -## Is Abseil the right home for my utility library? - -Most often the answer to the question is "no." As both the [About -Abseil](https://abseil.io/about/) page and our [contributing -guidelines](https://github.com/abseil/abseil-cpp/blob/master/CONTRIBUTING.md#contribution-guidelines) -explain, Abseil contains a variety of core C++ library code that is widely used -at [Google](https://www.google.com/). As such, Abseil's primary purpose is to be -used as a dependency by Google's open source C++ projects. While we do hope that -Abseil is also useful to the C++ community at large, this added constraint also -means that we are unlikely to accept a contribution of utility code that isn't -already widely used by Google. - -## How to I set the C++ dialect used to build Abseil? - -The short answer is that whatever mechanism you choose, you need to make sure -that you set this option consistently at the global level for your entire -project. If, for example, you want to set the C++ dialect to C++17, with -[Bazel](https://bazel/build/) as the build system and `gcc` or `clang` as the -compiler, there several ways to do this: -* Pass `--cxxopt=-std=c++17` on the command line (for example, `bazel build - --cxxopt=-std=c++17 ...`) -* Set the environment variable `BAZEL_CXXOPTS` (for example, - `BAZEL_CXXOPTS=-std=c++17`) -* Add `build --cxxopt=-std=c++17` to your [`.bazelrc` - file](https://docs.bazel.build/versions/master/guide.html#bazelrc) - -If you are using CMake as the build system, you'll need to add a line like -`set(CMAKE_CXX_STANDARD 17)` to your top level `CMakeLists.txt` file. If you -are developing a library designed to be used by other clients, you should -instead leave `CMAKE_CXX_STANDARD` unset and configure the minimum C++ standard -required by each of your library targets via `target_compile_features`. See the -[CMake build -instructions](https://github.com/abseil/abseil-cpp/blob/master/CMake/README.md) -for more information. - -For a longer answer to this question and to understand why some other approaches -don't work, see the answer to ["What is ABI and why don't you recommend using a -pre-compiled version of -Abseil?"](#what-is-abi-and-why-dont-you-recommend-using-a-pre-compiled-version-of-abseil) - -## What is ABI and why don't you recommend using a pre-compiled version of Abseil? - -For the purposes of this discussion, you can think of -[ABI](https://en.wikipedia.org/wiki/Application_binary_interface) as the -compiled representation of the interfaces in code. This is in contrast to -[API](https://en.wikipedia.org/wiki/Application_programming_interface), which -you can think of as the interfaces as defined by the code itself. [Abseil has a -strong promise of API compatibility, but does not make any promise of ABI -compatibility](https://abseil.io/about/compatibility). Let's take a look at what -this means in practice. - -You might be tempted to do something like this in a -[Bazel](https://bazel.build/) `BUILD` file: - -``` -# DON'T DO THIS!!! -cc_library( - name = "my_library", - srcs = ["my_library.cc"], - copts = ["-std=c++17"], # May create a mixed-mode compile! - deps = ["@com_google_absl//absl/strings"], -) -``` - -Applying `-std=c++17` to an individual target in your `BUILD` file is going to -compile that specific target in C++17 mode, but it isn't going to ensure the -Abseil library is built in C++17 mode, since the Abseil library itself is a -different build target. If your code includes an Abseil header, then your -program may contain conflicting definitions of the same -class/function/variable/enum, etc. As a rule, all compile options that affect -the ABI of a program need to be applied to the entire build on a global basis. - -C++ has something called the [One Definition -Rule](https://en.wikipedia.org/wiki/One_Definition_Rule) (ODR). C++ doesn't -allow multiple definitions of the same class/function/variable/enum, etc. ODR -violations sometimes result in linker errors, but linkers do not always catch -violations. Uncaught ODR violations can result in strange runtime behaviors or -crashes that can be hard to debug. - -If you build the Abseil library and your code using different compile options -that affect ABI, there is a good chance you will run afoul of the One Definition -Rule. Examples of GCC compile options that affect ABI include (but aren't -limited to) language dialect (e.g. `-std=`), optimization level (e.g. `-O2`), -code generation flags (e.g. `-fexceptions`), and preprocessor defines -(e.g. `-DNDEBUG`). - -If you use a pre-compiled version of Abseil, (for example, from your Linux -distribution package manager or from something like -[vcpkg](https://github.com/microsoft/vcpkg)) you have to be very careful to -ensure ABI compatibility across the components of your program. The only way you -can be sure your program is going to be correct regarding ABI is to ensure -you've used the exact same compile options as were used to build the -pre-compiled library. This does not mean that Abseil cannot work as part of a -Linux distribution since a knowledgeable binary packager will have ensured that -all packages have been built with consistent compile options. This is one of the -reasons we warn against - though do not outright reject - using Abseil as a -pre-compiled library. - -Another possible way that you might afoul of ABI issues is if you accidentally -include two versions of Abseil in your program. Multiple versions of Abseil can -end up within the same binary if your program uses the Abseil library and -another library also transitively depends on Abseil (resulting in what is -sometimes called the diamond dependency problem). In cases such as this you must -structure your build so that all libraries use the same version of Abseil. -[Abseil's strong promise of API compatibility between -releases](https://abseil.io/about/compatibility) means the latest "HEAD" release -of Abseil is almost certainly the right choice if you are doing as we recommend -and building all of your code from source. - -For these reasons we recommend you avoid pre-compiled code and build the Abseil -library yourself in a consistent manner with the rest of your code. - -## What is "live at head" and how do I do it? - -From Abseil's point-of-view, "live at head" means that every Abseil source -release (which happens on an almost daily basis) is either API compatible with -the previous release, or comes with an automated tool that you can run over code -to make it compatible. In practice, the need to use an automated tool is -extremely rare. This means that upgrading from one source release to another -should be a routine practice that can and should be performed often. - -We recommend you update to the [latest commit in the `master` branch of -Abseil](https://github.com/abseil/abseil-cpp/commits/master) as often as -possible. Not only will you pick up bug fixes more quickly, but if you have good -automated testing, you will catch and be able to fix any [Hyrum's -Law](https://www.hyrumslaw.com/) dependency problems on an incremental basis -instead of being overwhelmed by them and having difficulty isolating them if you -wait longer between updates. - -If you are using the [Bazel](https://bazel.build/) build system and its -[external dependencies](https://docs.bazel.build/versions/master/external.html) -feature, updating the -[`http_archive`](https://docs.bazel.build/versions/master/repo/http.html#http_archive) -rule in your -[`WORKSPACE`](https://docs.bazel.build/versions/master/be/workspace.html) for -`com_google_abseil` to point to the [latest commit in the `master` branch of -Abseil](https://github.com/abseil/abseil-cpp/commits/master) is all you need to -do. For example, on February 11, 2020, the latest commit to the master branch -was `98eb410c93ad059f9bba1bf43f5bb916fc92a5ea`. To update to this commit, you -would add the following snippet to your `WORKSPACE` file: - -``` -http_archive( - name = "com_google_absl", - urls = ["https://github.com/abseil/abseil-cpp/archive/98eb410c93ad059f9bba1bf43f5bb916fc92a5ea.zip"], # 2020-02-11T18:50:53Z - strip_prefix = "abseil-cpp-98eb410c93ad059f9bba1bf43f5bb916fc92a5ea", - sha256 = "aabf6c57e3834f8dc3873a927f37eaf69975d4b28117fc7427dfb1c661542a87", -) -``` - -To get the `sha256` of this URL, run `curl -sL --output - -https://github.com/abseil/abseil-cpp/archive/98eb410c93ad059f9bba1bf43f5bb916fc92a5ea.zip -| sha256sum -`. - -You can commit the updated `WORKSPACE` file to your source control every time -you update, and if you have good automated testing, you might even consider -automating this. - -One thing we don't recommend is using GitHub's `master.zip` files (for example -[https://github.com/abseil/abseil-cpp/archive/master.zip](https://github.com/abseil/abseil-cpp/archive/master.zip)), -which are always the latest commit in the `master` branch, to implement live at -head. Since these `master.zip` URLs are not versioned, you will lose build -reproducibility. In addition, some build systems, including Bazel, will simply -cache this file, which means you won't actually be updating to the latest -release until your cache is cleared or invalidated. diff --git a/src/third_party/abseil-cpp/LICENSE b/src/third_party/abseil-cpp/LICENSE deleted file mode 100644 index ccd61dcfe3..0000000000 --- a/src/third_party/abseil-cpp/LICENSE +++ /dev/null @@ -1,203 +0,0 @@ - - Apache License - Version 2.0, January 2004 - https://www.apache.org/licenses/ - - TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION - - 1. 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We also recommend that a - file or class name and description of purpose be included on the - same "printed page" as the copyright notice for easier - identification within third-party archives. - - Copyright [yyyy] [name of copyright owner] - - Licensed under the Apache License, Version 2.0 (the "License"); - you may not use this file except in compliance with the License. - You may obtain a copy of the License at - - https://www.apache.org/licenses/LICENSE-2.0 - - Unless required by applicable law or agreed to in writing, software - distributed under the License is distributed on an "AS IS" BASIS, - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - See the License for the specific language governing permissions and - limitations under the License. - diff --git a/src/third_party/abseil-cpp/README.md b/src/third_party/abseil-cpp/README.md deleted file mode 100644 index 0816692e13..0000000000 --- a/src/third_party/abseil-cpp/README.md +++ /dev/null @@ -1,163 +0,0 @@ -# Abseil - C++ Common Libraries - -The repository contains the Abseil C++ library code. Abseil is an open-source -collection of C++ code (compliant to C++14) designed to augment the C++ -standard library. - -## Table of Contents - -- [About Abseil](#about) -- [Quickstart](#quickstart) -- [Building Abseil](#build) -- [Support](#support) -- [Codemap](#codemap) -- [Releases](#releases) -- [License](#license) -- [Links](#links) - - -## About Abseil - -Abseil is an open-source collection of C++ library code designed to augment -the C++ standard library. The Abseil library code is collected from Google's -own C++ code base, has been extensively tested and used in production, and -is the same code we depend on in our daily coding lives. - -In some cases, Abseil provides pieces missing from the C++ standard; in -others, Abseil provides alternatives to the standard for special needs -we've found through usage in the Google code base. We denote those cases -clearly within the library code we provide you. - -Abseil is not meant to be a competitor to the standard library; we've -just found that many of these utilities serve a purpose within our code -base, and we now want to provide those resources to the C++ community as -a whole. - - -## Quickstart - -If you want to just get started, make sure you at least run through the -[Abseil Quickstart](https://abseil.io/docs/cpp/quickstart). The Quickstart -contains information about setting up your development environment, downloading -the Abseil code, running tests, and getting a simple binary working. - - -## Building Abseil - -[Bazel](https://bazel.build) and [CMake](https://cmake.org/) are the official -build systems for Abseil. -See the [quickstart](https://abseil.io/docs/cpp/quickstart) for more information -on building Abseil using the Bazel build system. -If you require CMake support, please check the [CMake build -instructions](CMake/README.md) and [CMake -Quickstart](https://abseil.io/docs/cpp/quickstart-cmake). - - -## Support - -Abseil follows Google's [Foundational C++ Support -Policy](https://opensource.google/documentation/policies/cplusplus-support). See -[this -table](https://github.com/google/oss-policies-info/blob/main/foundational-cxx-support-matrix.md) -for a list of currently supported versions compilers, platforms, and build -tools. - - -## Codemap - -Abseil contains the following C++ library components: - -* [`base`](absl/base/) -
The `base` library contains initialization code and other code which - all other Abseil code depends on. Code within `base` may not depend on any - other code (other than the C++ standard library). -* [`algorithm`](absl/algorithm/) -
The `algorithm` library contains additions to the C++ `` - library and container-based versions of such algorithms. -* [`cleanup`](absl/cleanup/) -
The `cleanup` library contains the control-flow-construct-like type - `absl::Cleanup` which is used for executing a callback on scope exit. -* [`container`](absl/container/) -
The `container` library contains additional STL-style containers, - including Abseil's unordered "Swiss table" containers. -* [`crc`](absl/crc/) The `crc` library contains code for - computing error-detecting cyclic redundancy checks on data. -* [`debugging`](absl/debugging/) -
The `debugging` library contains code useful for enabling leak - checks, and stacktrace and symbolization utilities. -* [`flags`](absl/flags/) -
The `flags` library contains code for handling command line flags for - libraries and binaries built with Abseil. -* [`hash`](absl/hash/) -
The `hash` library contains the hashing framework and default hash - functor implementations for hashable types in Abseil. -* [`iterator`](absl/iterator/) -
The `iterator` library contains utilities for augmenting ranges in - range-based for loops. -* [`log`](absl/log/) -
The `log` library contains `LOG` and `CHECK` macros and facilities - for writing logged messages out to disk, `stderr`, or user-extensible - destinations. -* [`memory`](absl/memory/) -
The `memory` library contains memory management facilities that augment - C++'s `` library. -* [`meta`](absl/meta/) -
The `meta` library contains compatible versions of type checks - available within C++14 and C++17 versions of the C++ `` library. -* [`numeric`](absl/numeric/) -
The `numeric` library contains 128-bit integer types as well as - implementations of C++20's bitwise math functions. -* [`profiling`](absl/profiling/) -
The `profiling` library contains utility code for profiling C++ - entities. It is currently a private dependency of other Abseil libraries. -* [`random`](absl/random/) -
The `random` library contains functions for generating psuedorandom - values. -* [`status`](absl/status/) -
The `status` library contains abstractions for error handling, - specifically `absl::Status` and `absl::StatusOr`. -* [`strings`](absl/strings/) -
The `strings` library contains a variety of strings routines and - utilities, including a C++14-compatible version of the C++17 - `std::string_view` type. -* [`synchronization`](absl/synchronization/) -
The `synchronization` library contains concurrency primitives (Abseil's - `absl::Mutex` class, an alternative to `std::mutex`) and a variety of - synchronization abstractions. -* [`time`](absl/time/) -
The `time` library contains abstractions for computing with absolute - points in time, durations of time, and formatting and parsing time within - time zones. -* [`types`](absl/types/) -
The `types` library contains non-container utility types, like a - C++14-compatible version of the C++17 `std::optional` type. -* [`utility`](absl/utility/) -
The `utility` library contains utility and helper code. - - -## Releases - -Abseil recommends users "live-at-head" (update to the latest commit from the -master branch as often as possible). However, we realize this philosophy doesn't -work for every project, so we also provide [Long Term Support -Releases](https://github.com/abseil/abseil-cpp/releases) to which we backport -fixes for severe bugs. See our [release -management](https://abseil.io/about/releases) document for more details. - - -## License - -The Abseil C++ library is licensed under the terms of the Apache -license. See [LICENSE](LICENSE) for more information. - - -## Links - -For more information about Abseil: - -* Consult our [Abseil Introduction](https://abseil.io/about/intro) -* Read [Why Adopt Abseil](https://abseil.io/about/philosophy) to understand our - design philosophy. -* Peruse our - [Abseil Compatibility Guarantees](https://abseil.io/about/compatibility) to - understand both what we promise to you, and what we expect of you in return. diff --git a/src/third_party/abseil-cpp/UPGRADES.md b/src/third_party/abseil-cpp/UPGRADES.md deleted file mode 100644 index 35599d0878..0000000000 --- a/src/third_party/abseil-cpp/UPGRADES.md +++ /dev/null @@ -1,17 +0,0 @@ -# C++ Upgrade Tools - -Abseil may occassionally release API-breaking changes. As noted in our -[Compatibility Guidelines][compatibility-guide], we will aim to provide a tool -to do the work of effecting such API-breaking changes, when absolutely -necessary. - -These tools will be listed on the [C++ Upgrade Tools][upgrade-tools] guide on -https://abseil.io. - -For more information, the [C++ Automated Upgrade Guide][api-upgrades-guide] -outlines this process. - -[compatibility-guide]: https://abseil.io/about/compatibility -[api-upgrades-guide]: https://abseil.io/docs/cpp/tools/api-upgrades -[upgrade-tools]: https://abseil.io/docs/cpp/tools/upgrades/ - diff --git a/src/third_party/abseil-cpp/WORKSPACE b/src/third_party/abseil-cpp/WORKSPACE deleted file mode 100644 index 4069ecc71b..0000000000 --- a/src/third_party/abseil-cpp/WORKSPACE +++ /dev/null @@ -1,62 +0,0 @@ -# -# Copyright 2019 The Abseil Authors. -# -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at -# -# https://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. -# - -workspace(name = "com_google_absl") - -load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive") - -# GoogleTest/GoogleMock framework. Used by most unit-tests. -http_archive( - name = "com_google_googletest", # 2023-01-05T19:15:29Z - sha256 = "ffa17fbc5953900994e2deec164bb8949879ea09b411e07f215bfbb1f87f4632", - strip_prefix = "googletest-1.13.0", - # Keep this URL in sync with ABSL_GOOGLETEST_COMMIT in ci/cmake_common.sh. - urls = ["https://github.com/google/googletest/archive/refs/tags/v1.13.0.zip"], -) - -# RE2 (the regular expression library used by GoogleTest) -# Note this must use a commit from the `abseil` branch of the RE2 project. -# https://github.com/google/re2/tree/abseil -http_archive( - name = "com_googlesource_code_re2", - sha256 = "0a890c2aa0bb05b2ce906a15efb520d0f5ad4c7d37b8db959c43772802991887", - strip_prefix = "re2-a427f10b9fb4622dd6d8643032600aa1b50fbd12", - urls = ["https://github.com/google/re2/archive/a427f10b9fb4622dd6d8643032600aa1b50fbd12.zip"], # 2022-06-09 -) - -# Google benchmark. -http_archive( - name = "com_github_google_benchmark", # 2023-01-10T16:48:17Z - sha256 = "ede6830512f21490eeea1f238f083702eb178890820c14451c1c3d69fd375b19", - strip_prefix = "benchmark-a3235d7b69c84e8c9ff8722a22b8ac5e1bc716a6", - urls = ["https://github.com/google/benchmark/archive/a3235d7b69c84e8c9ff8722a22b8ac5e1bc716a6.zip"], -) - -# Bazel Skylib. -http_archive( - name = "bazel_skylib", # 2022-11-16T18:29:32Z - sha256 = "a22290c26d29d3ecca286466f7f295ac6cbe32c0a9da3a91176a90e0725e3649", - strip_prefix = "bazel-skylib-5bfcb1a684550626ce138fe0fe8f5f702b3764c3", - urls = ["https://github.com/bazelbuild/bazel-skylib/archive/5bfcb1a684550626ce138fe0fe8f5f702b3764c3.zip"], -) - -# Bazel platform rules. -http_archive( - name = "platforms", # 2022-11-09T19:18:22Z - sha256 = "b4a3b45dc4202e2b3e34e3bc49d2b5b37295fc23ea58d88fb9e01f3642ad9b55", - strip_prefix = "platforms-3fbc687756043fb58a407c2ea8c944bc2fe1d922", - urls = ["https://github.com/bazelbuild/platforms/archive/3fbc687756043fb58a407c2ea8c944bc2fe1d922.zip"], -) diff --git a/src/third_party/abseil-cpp/absl/BUILD.bazel b/src/third_party/abseil-cpp/absl/BUILD.bazel deleted file mode 100644 index 29963ccc19..0000000000 --- a/src/third_party/abseil-cpp/absl/BUILD.bazel +++ /dev/null @@ -1,125 +0,0 @@ -# -# Copyright 2017 The Abseil Authors. -# -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at -# -# https://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. - -load("@bazel_skylib//lib:selects.bzl", "selects") - -package(default_visibility = ["//visibility:public"]) - -licenses(["notice"]) - -config_setting( - name = "clang_compiler", - flag_values = { - "@bazel_tools//tools/cpp:compiler": "clang", - }, - visibility = [":__subpackages__"], -) - -config_setting( - name = "gcc_compiler", - flag_values = { - "@bazel_tools//tools/cpp:compiler": "gcc", - }, - visibility = [":__subpackages__"], -) - -config_setting( - name = "msvc_compiler", - flag_values = { - "@bazel_tools//tools/cpp:compiler": "msvc-cl", - }, - visibility = [":__subpackages__"], -) - -config_setting( - name = "clang-cl_compiler", - flag_values = { - "@bazel_tools//tools/cpp:compiler": "clang-cl", - }, - visibility = [":__subpackages__"], -) - -config_setting( - name = "osx", - constraint_values = [ - "@platforms//os:osx", - ], -) - -config_setting( - name = "ios", - constraint_values = [ - "@platforms//os:ios", - ], -) - -config_setting( - name = "ppc", - values = { - "cpu": "ppc", - }, - visibility = [":__subpackages__"], -) - -config_setting( - name = "cpu_wasm", - values = { - "cpu": "wasm", - }, - visibility = [":__subpackages__"], -) - -config_setting( - name = "cpu_wasm32", - values = { - "cpu": "wasm32", - }, - visibility = [":__subpackages__"], -) - -config_setting( - name = "platforms_wasm32", - constraint_values = [ - "@platforms//cpu:wasm32", - ], - visibility = [":__subpackages__"], -) - -config_setting( - name = "platforms_wasm64", - constraint_values = [ - "@platforms//cpu:wasm64", - ], - visibility = [":__subpackages__"], -) - -selects.config_setting_group( - name = "wasm", - match_any = [ - ":cpu_wasm", - ":cpu_wasm32", - ":platforms_wasm32", - ":platforms_wasm64", - ], - visibility = [":__subpackages__"], -) - -config_setting( - name = "fuchsia", - values = { - "cpu": "fuchsia", - }, - visibility = [":__subpackages__"], -) diff --git a/src/third_party/abseil-cpp/absl/CMakeLists.txt b/src/third_party/abseil-cpp/absl/CMakeLists.txt deleted file mode 100644 index 3a7c12fe99..0000000000 --- a/src/third_party/abseil-cpp/absl/CMakeLists.txt +++ /dev/null @@ -1,44 +0,0 @@ -# -# Copyright 2017 The Abseil Authors. -# -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at -# -# https://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. -# - -add_subdirectory(base) -add_subdirectory(algorithm) -add_subdirectory(cleanup) -add_subdirectory(container) -add_subdirectory(crc) -add_subdirectory(debugging) -add_subdirectory(flags) -add_subdirectory(functional) -add_subdirectory(hash) -add_subdirectory(log) -add_subdirectory(memory) -add_subdirectory(meta) -add_subdirectory(numeric) -add_subdirectory(profiling) -add_subdirectory(random) -add_subdirectory(status) -add_subdirectory(strings) -add_subdirectory(synchronization) -add_subdirectory(time) -add_subdirectory(types) -add_subdirectory(utility) - -if (${ABSL_BUILD_DLL}) - absl_make_dll() - if (${ABSL_BUILD_TEST_HELPERS}) - absl_make_dll(TEST ON) - endif() -endif() diff --git a/src/third_party/abseil-cpp/absl/abseil.podspec.gen.py b/src/third_party/abseil-cpp/absl/abseil.podspec.gen.py deleted file mode 100755 index 63752980d0..0000000000 --- a/src/third_party/abseil-cpp/absl/abseil.podspec.gen.py +++ /dev/null @@ -1,229 +0,0 @@ -#!/usr/bin/env python3 -# -*- coding: utf-8 -*- -"""This script generates abseil.podspec from all BUILD.bazel files. - -This is expected to run on abseil git repository with Bazel 1.0 on Linux. -It recursively analyzes BUILD.bazel files using query command of Bazel to -dump its build rules in XML format. From these rules, it constructs podspec -structure. -""" - -import argparse -import collections -import os -import re -import subprocess -import xml.etree.ElementTree - -# Template of root podspec. -SPEC_TEMPLATE = """ -# This file has been automatically generated from a script. -# Please make modifications to `abseil.podspec.gen.py` instead. -Pod::Spec.new do |s| - s.name = 'abseil' - s.version = '${version}' - s.summary = 'Abseil Common Libraries (C++) from Google' - s.homepage = 'https://abseil.io' - s.license = 'Apache License, Version 2.0' - s.authors = { 'Abseil Team' => 'abseil-io@googlegroups.com' } - s.source = { - :git => 'https://github.com/abseil/abseil-cpp.git', - :tag => '${tag}', - } - s.module_name = 'absl' - s.header_mappings_dir = 'absl' - s.header_dir = 'absl' - s.libraries = 'c++' - s.compiler_flags = '-Wno-everything' - s.pod_target_xcconfig = { - 'USER_HEADER_SEARCH_PATHS' => '$(inherited) "$(PODS_TARGET_SRCROOT)"', - 'USE_HEADERMAP' => 'NO', - 'ALWAYS_SEARCH_USER_PATHS' => 'NO', - } - s.ios.deployment_target = '9.0' - s.osx.deployment_target = '10.10' - s.tvos.deployment_target = '9.0' - s.watchos.deployment_target = '2.0' -""" - -# Rule object representing the rule of Bazel BUILD. -Rule = collections.namedtuple( - "Rule", "type name package srcs hdrs textual_hdrs deps visibility testonly") - - -def get_elem_value(elem, name): - """Returns the value of XML element with the given name.""" - for child in elem: - if child.attrib.get("name") != name: - continue - if child.tag == "string": - return child.attrib.get("value") - if child.tag == "boolean": - return child.attrib.get("value") == "true" - if child.tag == "list": - return [nested_child.attrib.get("value") for nested_child in child] - raise "Cannot recognize tag: " + child.tag - return None - - -def normalize_paths(paths): - """Returns the list of normalized path.""" - # e.g. ["//absl/strings:dir/header.h"] -> ["absl/strings/dir/header.h"] - return [path.lstrip("/").replace(":", "/") for path in paths] - - -def parse_rule(elem, package): - """Returns a rule from bazel XML rule.""" - return Rule( - type=elem.attrib["class"], - name=get_elem_value(elem, "name"), - package=package, - srcs=normalize_paths(get_elem_value(elem, "srcs") or []), - hdrs=normalize_paths(get_elem_value(elem, "hdrs") or []), - textual_hdrs=normalize_paths(get_elem_value(elem, "textual_hdrs") or []), - deps=get_elem_value(elem, "deps") or [], - visibility=get_elem_value(elem, "visibility") or [], - testonly=get_elem_value(elem, "testonly") or False) - - -def read_build(package): - """Runs bazel query on given package file and returns all cc rules.""" - result = subprocess.check_output( - ["bazel", "query", package + ":all", "--output", "xml"]) - root = xml.etree.ElementTree.fromstring(result) - return [ - parse_rule(elem, package) - for elem in root - if elem.tag == "rule" and elem.attrib["class"].startswith("cc_") - ] - - -def collect_rules(root_path): - """Collects and returns all rules from root path recursively.""" - rules = [] - for cur, _, _ in os.walk(root_path): - build_path = os.path.join(cur, "BUILD.bazel") - if os.path.exists(build_path): - rules.extend(read_build("//" + cur)) - return rules - - -def relevant_rule(rule): - """Returns true if a given rule is relevant when generating a podspec.""" - return ( - # cc_library only (ignore cc_test, cc_binary) - rule.type == "cc_library" and - # ignore empty rule - (rule.hdrs + rule.textual_hdrs + rule.srcs) and - # ignore test-only rule - not rule.testonly) - - -def get_spec_var(depth): - """Returns the name of variable for spec with given depth.""" - return "s" if depth == 0 else "s{}".format(depth) - - -def get_spec_name(label): - """Converts the label of bazel rule to the name of podspec.""" - assert label.startswith("//absl/"), "{} doesn't start with //absl/".format( - label) - # e.g. //absl/apple/banana -> abseil/apple/banana - return "abseil/" + label[7:] - - -def write_podspec(f, rules, args): - """Writes a podspec from given rules and args.""" - rule_dir = build_rule_directory(rules)["abseil"] - # Write root part with given arguments - spec = re.sub(r"\$\{(\w+)\}", lambda x: args[x.group(1)], - SPEC_TEMPLATE).lstrip() - f.write(spec) - # Write all target rules - write_podspec_map(f, rule_dir, 0) - f.write("end\n") - - -def build_rule_directory(rules): - """Builds a tree-style rule directory from given rules.""" - rule_dir = {} - for rule in rules: - cur = rule_dir - for frag in get_spec_name(rule.package).split("/"): - cur = cur.setdefault(frag, {}) - cur[rule.name] = rule - return rule_dir - - -def write_podspec_map(f, cur_map, depth): - """Writes podspec from rule map recursively.""" - for key, value in sorted(cur_map.items()): - indent = " " * (depth + 1) - f.write("{indent}{var0}.subspec '{key}' do |{var1}|\n".format( - indent=indent, - key=key, - var0=get_spec_var(depth), - var1=get_spec_var(depth + 1))) - if isinstance(value, dict): - write_podspec_map(f, value, depth + 1) - else: - write_podspec_rule(f, value, depth + 1) - f.write("{indent}end\n".format(indent=indent)) - - -def write_podspec_rule(f, rule, depth): - """Writes podspec from given rule.""" - indent = " " * (depth + 1) - spec_var = get_spec_var(depth) - # Puts all files in hdrs, textual_hdrs, and srcs into source_files. - # Since CocoaPods treats header_files a bit differently from bazel, - # this won't generate a header_files field so that all source_files - # are considered as header files. - srcs = sorted(set(rule.hdrs + rule.textual_hdrs + rule.srcs)) - write_indented_list( - f, "{indent}{var}.source_files = ".format(indent=indent, var=spec_var), - srcs) - # Writes dependencies of this rule. - for dep in sorted(rule.deps): - name = get_spec_name(dep.replace(":", "/")) - f.write("{indent}{var}.dependency '{dep}'\n".format( - indent=indent, var=spec_var, dep=name)) - - -def write_indented_list(f, leading, values): - """Writes leading values in an indented style.""" - f.write(leading) - f.write((",\n" + " " * len(leading)).join("'{}'".format(v) for v in values)) - f.write("\n") - - -def generate(args): - """Generates a podspec file from all BUILD files under absl directory.""" - rules = filter(relevant_rule, collect_rules("absl")) - with open(args.output, "wt") as f: - write_podspec(f, rules, vars(args)) - - -def main(): - parser = argparse.ArgumentParser( - description="Generates abseil.podspec from BUILD.bazel") - parser.add_argument( - "-v", "--version", help="The version of podspec", required=True) - parser.add_argument( - "-t", - "--tag", - default=None, - help="The name of git tag (default: version)") - parser.add_argument( - "-o", - "--output", - default="abseil.podspec", - help="The name of output file (default: abseil.podspec)") - args = parser.parse_args() - if args.tag is None: - args.tag = args.version - generate(args) - - -if __name__ == "__main__": - main() diff --git a/src/third_party/abseil-cpp/absl/algorithm/BUILD.bazel b/src/third_party/abseil-cpp/absl/algorithm/BUILD.bazel deleted file mode 100644 index 3a9ab0136c..0000000000 --- a/src/third_party/abseil-cpp/absl/algorithm/BUILD.bazel +++ /dev/null @@ -1,92 +0,0 @@ -# -# Copyright 2017 The Abseil Authors. -# -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at -# -# https://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. -# - -load( - "//absl:copts/configure_copts.bzl", - "ABSL_DEFAULT_COPTS", - "ABSL_DEFAULT_LINKOPTS", - "ABSL_TEST_COPTS", -) - -package(default_visibility = ["//visibility:public"]) - -licenses(["notice"]) - -cc_library( - name = "algorithm", - hdrs = ["algorithm.h"], - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - "//absl/base:config", - ], -) - -cc_test( - name = "algorithm_test", - size = "small", - srcs = ["algorithm_test.cc"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":algorithm", - "//absl/base:config", - "@com_google_googletest//:gtest_main", - ], -) - -cc_binary( - name = "algorithm_benchmark", - testonly = 1, - srcs = ["equal_benchmark.cc"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - tags = ["benchmark"], - deps = [ - ":algorithm", - "//absl/base:core_headers", - "@com_github_google_benchmark//:benchmark_main", - ], -) - -cc_library( - name = "container", - hdrs = [ - "container.h", - ], - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":algorithm", - "//absl/base:core_headers", - "//absl/meta:type_traits", - ], -) - -cc_test( - name = "container_test", - srcs = ["container_test.cc"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":container", - "//absl/base", - "//absl/base:core_headers", - "//absl/memory", - "//absl/types:span", - "@com_google_googletest//:gtest_main", - ], -) diff --git a/src/third_party/abseil-cpp/absl/algorithm/CMakeLists.txt b/src/third_party/abseil-cpp/absl/algorithm/CMakeLists.txt deleted file mode 100644 index 181b49ca02..0000000000 --- a/src/third_party/abseil-cpp/absl/algorithm/CMakeLists.txt +++ /dev/null @@ -1,70 +0,0 @@ -# -# Copyright 2017 The Abseil Authors. -# -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at -# -# https://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. -# - -absl_cc_library( - NAME - algorithm - HDRS - "algorithm.h" - COPTS - ${ABSL_DEFAULT_COPTS} - DEPS - absl::config - PUBLIC -) - -absl_cc_test( - NAME - algorithm_test - SRCS - "algorithm_test.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::algorithm - absl::config - GTest::gmock_main -) - -absl_cc_library( - NAME - algorithm_container - HDRS - "container.h" - COPTS - ${ABSL_DEFAULT_COPTS} - DEPS - absl::algorithm - absl::core_headers - absl::meta - PUBLIC -) - -absl_cc_test( - NAME - container_test - SRCS - "container_test.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::algorithm_container - absl::base - absl::core_headers - absl::memory - absl::span - GTest::gmock_main -) diff --git a/src/third_party/abseil-cpp/absl/algorithm/algorithm.h b/src/third_party/abseil-cpp/absl/algorithm/algorithm.h deleted file mode 100644 index e9b4733872..0000000000 --- a/src/third_party/abseil-cpp/absl/algorithm/algorithm.h +++ /dev/null @@ -1,159 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// ----------------------------------------------------------------------------- -// File: algorithm.h -// ----------------------------------------------------------------------------- -// -// This header file contains Google extensions to the standard C++ -// header. - -#ifndef ABSL_ALGORITHM_ALGORITHM_H_ -#define ABSL_ALGORITHM_ALGORITHM_H_ - -#include -#include -#include - -#include "absl/base/config.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN - -namespace algorithm_internal { - -// Performs comparisons with operator==, similar to C++14's `std::equal_to<>`. -struct EqualTo { - template - bool operator()(const T& a, const U& b) const { - return a == b; - } -}; - -template -bool EqualImpl(InputIter1 first1, InputIter1 last1, InputIter2 first2, - InputIter2 last2, Pred pred, std::input_iterator_tag, - std::input_iterator_tag) { - while (true) { - if (first1 == last1) return first2 == last2; - if (first2 == last2) return false; - if (!pred(*first1, *first2)) return false; - ++first1; - ++first2; - } -} - -template -bool EqualImpl(InputIter1 first1, InputIter1 last1, InputIter2 first2, - InputIter2 last2, Pred&& pred, std::random_access_iterator_tag, - std::random_access_iterator_tag) { - return (last1 - first1 == last2 - first2) && - std::equal(first1, last1, first2, std::forward(pred)); -} - -// When we are using our own internal predicate that just applies operator==, we -// forward to the non-predicate form of std::equal. This enables an optimization -// in libstdc++ that can result in std::memcmp being used for integer types. -template -bool EqualImpl(InputIter1 first1, InputIter1 last1, InputIter2 first2, - InputIter2 last2, algorithm_internal::EqualTo /* unused */, - std::random_access_iterator_tag, - std::random_access_iterator_tag) { - return (last1 - first1 == last2 - first2) && - std::equal(first1, last1, first2); -} - -template -It RotateImpl(It first, It middle, It last, std::true_type) { - return std::rotate(first, middle, last); -} - -template -It RotateImpl(It first, It middle, It last, std::false_type) { - std::rotate(first, middle, last); - return std::next(first, std::distance(middle, last)); -} - -} // namespace algorithm_internal - -// equal() -// -// Compares the equality of two ranges specified by pairs of iterators, using -// the given predicate, returning true iff for each corresponding iterator i1 -// and i2 in the first and second range respectively, pred(*i1, *i2) == true -// -// This comparison takes at most min(`last1` - `first1`, `last2` - `first2`) -// invocations of the predicate. Additionally, if InputIter1 and InputIter2 are -// both random-access iterators, and `last1` - `first1` != `last2` - `first2`, -// then the predicate is never invoked and the function returns false. -// -// This is a C++11-compatible implementation of C++14 `std::equal`. See -// https://en.cppreference.com/w/cpp/algorithm/equal for more information. -template -bool equal(InputIter1 first1, InputIter1 last1, InputIter2 first2, - InputIter2 last2, Pred&& pred) { - return algorithm_internal::EqualImpl( - first1, last1, first2, last2, std::forward(pred), - typename std::iterator_traits::iterator_category{}, - typename std::iterator_traits::iterator_category{}); -} - -// Overload of equal() that performs comparison of two ranges specified by pairs -// of iterators using operator==. -template -bool equal(InputIter1 first1, InputIter1 last1, InputIter2 first2, - InputIter2 last2) { - return absl::equal(first1, last1, first2, last2, - algorithm_internal::EqualTo{}); -} - -// linear_search() -// -// Performs a linear search for `value` using the iterator `first` up to -// but not including `last`, returning true if [`first`, `last`) contains an -// element equal to `value`. -// -// A linear search is of O(n) complexity which is guaranteed to make at most -// n = (`last` - `first`) comparisons. A linear search over short containers -// may be faster than a binary search, even when the container is sorted. -template -bool linear_search(InputIterator first, InputIterator last, - const EqualityComparable& value) { - return std::find(first, last, value) != last; -} - -// rotate() -// -// Performs a left rotation on a range of elements (`first`, `last`) such that -// `middle` is now the first element. `rotate()` returns an iterator pointing to -// the first element before rotation. This function is exactly the same as -// `std::rotate`, but fixes a bug in gcc -// <= 4.9 where `std::rotate` returns `void` instead of an iterator. -// -// The complexity of this algorithm is the same as that of `std::rotate`, but if -// `ForwardIterator` is not a random-access iterator, then `absl::rotate` -// performs an additional pass over the range to construct the return value. -template -ForwardIterator rotate(ForwardIterator first, ForwardIterator middle, - ForwardIterator last) { - return algorithm_internal::RotateImpl( - first, middle, last, - std::is_same()); -} - -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_ALGORITHM_ALGORITHM_H_ diff --git a/src/third_party/abseil-cpp/absl/algorithm/algorithm_test.cc b/src/third_party/abseil-cpp/absl/algorithm/algorithm_test.cc deleted file mode 100644 index d18df0240f..0000000000 --- a/src/third_party/abseil-cpp/absl/algorithm/algorithm_test.cc +++ /dev/null @@ -1,191 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/algorithm/algorithm.h" - -#include -#include -#include - -#include "gmock/gmock.h" -#include "gtest/gtest.h" -#include "absl/base/config.h" - -namespace { - -TEST(EqualTest, DefaultComparisonRandomAccess) { - std::vector v1{1, 2, 3}; - std::vector v2 = v1; - std::vector v3 = {1, 2}; - std::vector v4 = {1, 2, 4}; - - EXPECT_TRUE(absl::equal(v1.begin(), v1.end(), v2.begin(), v2.end())); - EXPECT_FALSE(absl::equal(v1.begin(), v1.end(), v3.begin(), v3.end())); - EXPECT_FALSE(absl::equal(v1.begin(), v1.end(), v4.begin(), v4.end())); -} - -TEST(EqualTest, DefaultComparison) { - std::list lst1{1, 2, 3}; - std::list lst2 = lst1; - std::list lst3{1, 2}; - std::list lst4{1, 2, 4}; - - EXPECT_TRUE(absl::equal(lst1.begin(), lst1.end(), lst2.begin(), lst2.end())); - EXPECT_FALSE(absl::equal(lst1.begin(), lst1.end(), lst3.begin(), lst3.end())); - EXPECT_FALSE(absl::equal(lst1.begin(), lst1.end(), lst4.begin(), lst4.end())); -} - -TEST(EqualTest, EmptyRange) { - std::vector v1{1, 2, 3}; - std::vector empty1; - std::vector empty2; - - // https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105705 -#if ABSL_INTERNAL_HAVE_MIN_GNUC_VERSION(12, 0) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wnonnull" -#endif - EXPECT_FALSE(absl::equal(v1.begin(), v1.end(), empty1.begin(), empty1.end())); -#if ABSL_INTERNAL_HAVE_MIN_GNUC_VERSION(12, 0) -#pragma GCC diagnostic pop -#endif - EXPECT_FALSE(absl::equal(empty1.begin(), empty1.end(), v1.begin(), v1.end())); - EXPECT_TRUE( - absl::equal(empty1.begin(), empty1.end(), empty2.begin(), empty2.end())); -} - -TEST(EqualTest, MixedIterTypes) { - std::vector v1{1, 2, 3}; - std::list lst1{v1.begin(), v1.end()}; - std::list lst2{1, 2, 4}; - std::list lst3{1, 2}; - - EXPECT_TRUE(absl::equal(v1.begin(), v1.end(), lst1.begin(), lst1.end())); - EXPECT_FALSE(absl::equal(v1.begin(), v1.end(), lst2.begin(), lst2.end())); - EXPECT_FALSE(absl::equal(v1.begin(), v1.end(), lst3.begin(), lst3.end())); -} - -TEST(EqualTest, MixedValueTypes) { - std::vector v1{1, 2, 3}; - std::vector v2{1, 2, 3}; - std::vector v3{1, 2}; - std::vector v4{1, 2, 4}; - - EXPECT_TRUE(absl::equal(v1.begin(), v1.end(), v2.begin(), v2.end())); - EXPECT_FALSE(absl::equal(v1.begin(), v1.end(), v3.begin(), v3.end())); - EXPECT_FALSE(absl::equal(v1.begin(), v1.end(), v4.begin(), v4.end())); -} - -TEST(EqualTest, WeirdIterators) { - std::vector v1{true, false}; - std::vector v2 = v1; - std::vector v3{true}; - std::vector v4{true, true, true}; - - EXPECT_TRUE(absl::equal(v1.begin(), v1.end(), v2.begin(), v2.end())); - EXPECT_FALSE(absl::equal(v1.begin(), v1.end(), v3.begin(), v3.end())); - EXPECT_FALSE(absl::equal(v1.begin(), v1.end(), v4.begin(), v4.end())); -} - -TEST(EqualTest, CustomComparison) { - int n[] = {1, 2, 3, 4}; - std::vector v1{&n[0], &n[1], &n[2]}; - std::vector v2 = v1; - std::vector v3{&n[0], &n[1], &n[3]}; - std::vector v4{&n[0], &n[1]}; - - auto eq = [](int* a, int* b) { return *a == *b; }; - - EXPECT_TRUE(absl::equal(v1.begin(), v1.end(), v2.begin(), v2.end(), eq)); - EXPECT_FALSE(absl::equal(v1.begin(), v1.end(), v3.begin(), v3.end(), eq)); - EXPECT_FALSE(absl::equal(v1.begin(), v1.end(), v4.begin(), v4.end(), eq)); -} - -TEST(EqualTest, MoveOnlyPredicate) { - std::vector v1{1, 2, 3}; - std::vector v2{4, 5, 6}; - - // move-only equality predicate - struct Eq { - Eq() = default; - Eq(Eq &&) = default; - Eq(const Eq &) = delete; - Eq &operator=(const Eq &) = delete; - bool operator()(const int a, const int b) const { return a == b; } - }; - - EXPECT_TRUE(absl::equal(v1.begin(), v1.end(), v1.begin(), v1.end(), Eq())); - EXPECT_FALSE(absl::equal(v1.begin(), v1.end(), v2.begin(), v2.end(), Eq())); -} - -struct CountingTrivialPred { - int* count; - bool operator()(int, int) const { - ++*count; - return true; - } -}; - -TEST(EqualTest, RandomAccessComplexity) { - std::vector v1{1, 1, 3}; - std::vector v2 = v1; - std::vector v3{1, 2}; - - do { - int count = 0; - absl::equal(v1.begin(), v1.end(), v2.begin(), v2.end(), - CountingTrivialPred{&count}); - EXPECT_LE(count, 3); - } while (std::next_permutation(v2.begin(), v2.end())); - - int count = 0; - absl::equal(v1.begin(), v1.end(), v3.begin(), v3.end(), - CountingTrivialPred{&count}); - EXPECT_EQ(count, 0); -} - -class LinearSearchTest : public testing::Test { - protected: - LinearSearchTest() : container_{1, 2, 3} {} - - static bool Is3(int n) { return n == 3; } - static bool Is4(int n) { return n == 4; } - - std::vector container_; -}; - -TEST_F(LinearSearchTest, linear_search) { - EXPECT_TRUE(absl::linear_search(container_.begin(), container_.end(), 3)); - EXPECT_FALSE(absl::linear_search(container_.begin(), container_.end(), 4)); -} - -TEST_F(LinearSearchTest, linear_searchConst) { - const std::vector *const const_container = &container_; - EXPECT_TRUE( - absl::linear_search(const_container->begin(), const_container->end(), 3)); - EXPECT_FALSE( - absl::linear_search(const_container->begin(), const_container->end(), 4)); -} - -TEST(RotateTest, Rotate) { - std::vector v{0, 1, 2, 3, 4}; - EXPECT_EQ(*absl::rotate(v.begin(), v.begin() + 2, v.end()), 0); - EXPECT_THAT(v, testing::ElementsAreArray({2, 3, 4, 0, 1})); - - std::list l{0, 1, 2, 3, 4}; - EXPECT_EQ(*absl::rotate(l.begin(), std::next(l.begin(), 3), l.end()), 0); - EXPECT_THAT(l, testing::ElementsAreArray({3, 4, 0, 1, 2})); -} - -} // namespace diff --git a/src/third_party/abseil-cpp/absl/algorithm/container.h b/src/third_party/abseil-cpp/absl/algorithm/container.h deleted file mode 100644 index c7782d4f03..0000000000 --- a/src/third_party/abseil-cpp/absl/algorithm/container.h +++ /dev/null @@ -1,1773 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// ----------------------------------------------------------------------------- -// File: container.h -// ----------------------------------------------------------------------------- -// -// This header file provides Container-based versions of algorithmic functions -// within the C++ standard library. The following standard library sets of -// functions are covered within this file: -// -// * Algorithmic functions -// * Algorithmic functions -// * functions -// -// The standard library functions operate on iterator ranges; the functions -// within this API operate on containers, though many return iterator ranges. -// -// All functions within this API are named with a `c_` prefix. Calls such as -// `absl::c_xx(container, ...) are equivalent to std:: functions such as -// `std::xx(std::begin(cont), std::end(cont), ...)`. Functions that act on -// iterators but not conceptually on iterator ranges (e.g. `std::iter_swap`) -// have no equivalent here. -// -// For template parameter and variable naming, `C` indicates the container type -// to which the function is applied, `Pred` indicates the predicate object type -// to be used by the function and `T` indicates the applicable element type. - -#ifndef ABSL_ALGORITHM_CONTAINER_H_ -#define ABSL_ALGORITHM_CONTAINER_H_ - -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "absl/algorithm/algorithm.h" -#include "absl/base/macros.h" -#include "absl/meta/type_traits.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace container_algorithm_internal { - -// NOTE: it is important to defer to ADL lookup for building with C++ modules, -// especially for headers like which are not visible from this file -// but specialize std::begin and std::end. -using std::begin; -using std::end; - -// The type of the iterator given by begin(c) (possibly std::begin(c)). -// ContainerIter> gives vector::const_iterator, -// while ContainerIter> gives vector::iterator. -template -using ContainerIter = decltype(begin(std::declval())); - -// An MSVC bug involving template parameter substitution requires us to use -// decltype() here instead of just std::pair. -template -using ContainerIterPairType = - decltype(std::make_pair(ContainerIter(), ContainerIter())); - -template -using ContainerDifferenceType = decltype(std::distance( - std::declval>(), std::declval>())); - -template -using ContainerPointerType = - typename std::iterator_traits>::pointer; - -// container_algorithm_internal::c_begin and -// container_algorithm_internal::c_end are abbreviations for proper ADL -// lookup of std::begin and std::end, i.e. -// using std::begin; -// using std::end; -// std::foo(begin(c), end(c)); -// becomes -// std::foo(container_algorithm_internal::begin(c), -// container_algorithm_internal::end(c)); -// These are meant for internal use only. - -template -ContainerIter c_begin(C& c) { - return begin(c); -} - -template -ContainerIter c_end(C& c) { - return end(c); -} - -template -struct IsUnorderedContainer : std::false_type {}; - -template -struct IsUnorderedContainer< - std::unordered_map> : std::true_type {}; - -template -struct IsUnorderedContainer> - : std::true_type {}; - -// container_algorithm_internal::c_size. It is meant for internal use only. - -template -auto c_size(C& c) -> decltype(c.size()) { - return c.size(); -} - -template -constexpr std::size_t c_size(T (&)[N]) { - return N; -} - -} // namespace container_algorithm_internal - -// PUBLIC API - -//------------------------------------------------------------------------------ -// Abseil algorithm.h functions -//------------------------------------------------------------------------------ - -// c_linear_search() -// -// Container-based version of absl::linear_search() for performing a linear -// search within a container. -template -bool c_linear_search(const C& c, EqualityComparable&& value) { - return linear_search(container_algorithm_internal::c_begin(c), - container_algorithm_internal::c_end(c), - std::forward(value)); -} - -//------------------------------------------------------------------------------ -// algorithms -//------------------------------------------------------------------------------ - -// c_distance() -// -// Container-based version of the `std::distance()` function to -// return the number of elements within a container. -template -container_algorithm_internal::ContainerDifferenceType c_distance( - const C& c) { - return std::distance(container_algorithm_internal::c_begin(c), - container_algorithm_internal::c_end(c)); -} - -//------------------------------------------------------------------------------ -// Non-modifying sequence operations -//------------------------------------------------------------------------------ - -// c_all_of() -// -// Container-based version of the `std::all_of()` function to -// test if all elements within a container satisfy a condition. -template -bool c_all_of(const C& c, Pred&& pred) { - return std::all_of(container_algorithm_internal::c_begin(c), - container_algorithm_internal::c_end(c), - std::forward(pred)); -} - -// c_any_of() -// -// Container-based version of the `std::any_of()` function to -// test if any element in a container fulfills a condition. -template -bool c_any_of(const C& c, Pred&& pred) { - return std::any_of(container_algorithm_internal::c_begin(c), - container_algorithm_internal::c_end(c), - std::forward(pred)); -} - -// c_none_of() -// -// Container-based version of the `std::none_of()` function to -// test if no elements in a container fulfill a condition. -template -bool c_none_of(const C& c, Pred&& pred) { - return std::none_of(container_algorithm_internal::c_begin(c), - container_algorithm_internal::c_end(c), - std::forward(pred)); -} - -// c_for_each() -// -// Container-based version of the `std::for_each()` function to -// apply a function to a container's elements. -template -decay_t c_for_each(C&& c, Function&& f) { - return std::for_each(container_algorithm_internal::c_begin(c), - container_algorithm_internal::c_end(c), - std::forward(f)); -} - -// c_find() -// -// Container-based version of the `std::find()` function to find -// the first element containing the passed value within a container value. -template -container_algorithm_internal::ContainerIter c_find(C& c, T&& value) { - return std::find(container_algorithm_internal::c_begin(c), - container_algorithm_internal::c_end(c), - std::forward(value)); -} - -// c_find_if() -// -// Container-based version of the `std::find_if()` function to find -// the first element in a container matching the given condition. -template -container_algorithm_internal::ContainerIter c_find_if(C& c, Pred&& pred) { - return std::find_if(container_algorithm_internal::c_begin(c), - container_algorithm_internal::c_end(c), - std::forward(pred)); -} - -// c_find_if_not() -// -// Container-based version of the `std::find_if_not()` function to -// find the first element in a container not matching the given condition. -template -container_algorithm_internal::ContainerIter c_find_if_not(C& c, - Pred&& pred) { - return std::find_if_not(container_algorithm_internal::c_begin(c), - container_algorithm_internal::c_end(c), - std::forward(pred)); -} - -// c_find_end() -// -// Container-based version of the `std::find_end()` function to -// find the last subsequence within a container. -template -container_algorithm_internal::ContainerIter c_find_end( - Sequence1& sequence, Sequence2& subsequence) { - return std::find_end(container_algorithm_internal::c_begin(sequence), - container_algorithm_internal::c_end(sequence), - container_algorithm_internal::c_begin(subsequence), - container_algorithm_internal::c_end(subsequence)); -} - -// Overload of c_find_end() for using a predicate evaluation other than `==` as -// the function's test condition. -template -container_algorithm_internal::ContainerIter c_find_end( - Sequence1& sequence, Sequence2& subsequence, BinaryPredicate&& pred) { - return std::find_end(container_algorithm_internal::c_begin(sequence), - container_algorithm_internal::c_end(sequence), - container_algorithm_internal::c_begin(subsequence), - container_algorithm_internal::c_end(subsequence), - std::forward(pred)); -} - -// c_find_first_of() -// -// Container-based version of the `std::find_first_of()` function to -// find the first element within the container that is also within the options -// container. -template -container_algorithm_internal::ContainerIter c_find_first_of(C1& container, - C2& options) { - return std::find_first_of(container_algorithm_internal::c_begin(container), - container_algorithm_internal::c_end(container), - container_algorithm_internal::c_begin(options), - container_algorithm_internal::c_end(options)); -} - -// Overload of c_find_first_of() for using a predicate evaluation other than -// `==` as the function's test condition. -template -container_algorithm_internal::ContainerIter c_find_first_of( - C1& container, C2& options, BinaryPredicate&& pred) { - return std::find_first_of(container_algorithm_internal::c_begin(container), - container_algorithm_internal::c_end(container), - container_algorithm_internal::c_begin(options), - container_algorithm_internal::c_end(options), - std::forward(pred)); -} - -// c_adjacent_find() -// -// Container-based version of the `std::adjacent_find()` function to -// find equal adjacent elements within a container. -template -container_algorithm_internal::ContainerIter c_adjacent_find( - Sequence& sequence) { - return std::adjacent_find(container_algorithm_internal::c_begin(sequence), - container_algorithm_internal::c_end(sequence)); -} - -// Overload of c_adjacent_find() for using a predicate evaluation other than -// `==` as the function's test condition. -template -container_algorithm_internal::ContainerIter c_adjacent_find( - Sequence& sequence, BinaryPredicate&& pred) { - return std::adjacent_find(container_algorithm_internal::c_begin(sequence), - container_algorithm_internal::c_end(sequence), - std::forward(pred)); -} - -// c_count() -// -// Container-based version of the `std::count()` function to count -// values that match within a container. -template -container_algorithm_internal::ContainerDifferenceType c_count( - const C& c, T&& value) { - return std::count(container_algorithm_internal::c_begin(c), - container_algorithm_internal::c_end(c), - std::forward(value)); -} - -// c_count_if() -// -// Container-based version of the `std::count_if()` function to -// count values matching a condition within a container. -template -container_algorithm_internal::ContainerDifferenceType c_count_if( - const C& c, Pred&& pred) { - return std::count_if(container_algorithm_internal::c_begin(c), - container_algorithm_internal::c_end(c), - std::forward(pred)); -} - -// c_mismatch() -// -// Container-based version of the `std::mismatch()` function to -// return the first element where two ordered containers differ. Applies `==` to -// the first N elements of `c1` and `c2`, where N = min(size(c1), size(c2)). -template -container_algorithm_internal::ContainerIterPairType c_mismatch(C1& c1, - C2& c2) { - auto first1 = container_algorithm_internal::c_begin(c1); - auto last1 = container_algorithm_internal::c_end(c1); - auto first2 = container_algorithm_internal::c_begin(c2); - auto last2 = container_algorithm_internal::c_end(c2); - - for (; first1 != last1 && first2 != last2; ++first1, (void)++first2) { - // Negates equality because Cpp17EqualityComparable doesn't require clients - // to overload both `operator==` and `operator!=`. - if (!(*first1 == *first2)) { - break; - } - } - - return std::make_pair(first1, first2); -} - -// Overload of c_mismatch() for using a predicate evaluation other than `==` as -// the function's test condition. Applies `pred`to the first N elements of `c1` -// and `c2`, where N = min(size(c1), size(c2)). -template -container_algorithm_internal::ContainerIterPairType c_mismatch( - C1& c1, C2& c2, BinaryPredicate pred) { - auto first1 = container_algorithm_internal::c_begin(c1); - auto last1 = container_algorithm_internal::c_end(c1); - auto first2 = container_algorithm_internal::c_begin(c2); - auto last2 = container_algorithm_internal::c_end(c2); - - for (; first1 != last1 && first2 != last2; ++first1, (void)++first2) { - if (!pred(*first1, *first2)) { - break; - } - } - - return std::make_pair(first1, first2); -} - -// c_equal() -// -// Container-based version of the `std::equal()` function to -// test whether two containers are equal. -// -// NOTE: the semantics of c_equal() are slightly different than those of -// equal(): while the latter iterates over the second container only up to the -// size of the first container, c_equal() also checks whether the container -// sizes are equal. This better matches expectations about c_equal() based on -// its signature. -// -// Example: -// vector v1 = <1, 2, 3>; -// vector v2 = <1, 2, 3, 4>; -// equal(std::begin(v1), std::end(v1), std::begin(v2)) returns true -// c_equal(v1, v2) returns false - -template -bool c_equal(const C1& c1, const C2& c2) { - return ((container_algorithm_internal::c_size(c1) == - container_algorithm_internal::c_size(c2)) && - std::equal(container_algorithm_internal::c_begin(c1), - container_algorithm_internal::c_end(c1), - container_algorithm_internal::c_begin(c2))); -} - -// Overload of c_equal() for using a predicate evaluation other than `==` as -// the function's test condition. -template -bool c_equal(const C1& c1, const C2& c2, BinaryPredicate&& pred) { - return ((container_algorithm_internal::c_size(c1) == - container_algorithm_internal::c_size(c2)) && - std::equal(container_algorithm_internal::c_begin(c1), - container_algorithm_internal::c_end(c1), - container_algorithm_internal::c_begin(c2), - std::forward(pred))); -} - -// c_is_permutation() -// -// Container-based version of the `std::is_permutation()` function -// to test whether a container is a permutation of another. -template -bool c_is_permutation(const C1& c1, const C2& c2) { - using std::begin; - using std::end; - return c1.size() == c2.size() && - std::is_permutation(begin(c1), end(c1), begin(c2)); -} - -// Overload of c_is_permutation() for using a predicate evaluation other than -// `==` as the function's test condition. -template -bool c_is_permutation(const C1& c1, const C2& c2, BinaryPredicate&& pred) { - using std::begin; - using std::end; - return c1.size() == c2.size() && - std::is_permutation(begin(c1), end(c1), begin(c2), - std::forward(pred)); -} - -// c_search() -// -// Container-based version of the `std::search()` function to search -// a container for a subsequence. -template -container_algorithm_internal::ContainerIter c_search( - Sequence1& sequence, Sequence2& subsequence) { - return std::search(container_algorithm_internal::c_begin(sequence), - container_algorithm_internal::c_end(sequence), - container_algorithm_internal::c_begin(subsequence), - container_algorithm_internal::c_end(subsequence)); -} - -// Overload of c_search() for using a predicate evaluation other than -// `==` as the function's test condition. -template -container_algorithm_internal::ContainerIter c_search( - Sequence1& sequence, Sequence2& subsequence, BinaryPredicate&& pred) { - return std::search(container_algorithm_internal::c_begin(sequence), - container_algorithm_internal::c_end(sequence), - container_algorithm_internal::c_begin(subsequence), - container_algorithm_internal::c_end(subsequence), - std::forward(pred)); -} - -// c_search_n() -// -// Container-based version of the `std::search_n()` function to -// search a container for the first sequence of N elements. -template -container_algorithm_internal::ContainerIter c_search_n( - Sequence& sequence, Size count, T&& value) { - return std::search_n(container_algorithm_internal::c_begin(sequence), - container_algorithm_internal::c_end(sequence), count, - std::forward(value)); -} - -// Overload of c_search_n() for using a predicate evaluation other than -// `==` as the function's test condition. -template -container_algorithm_internal::ContainerIter c_search_n( - Sequence& sequence, Size count, T&& value, BinaryPredicate&& pred) { - return std::search_n(container_algorithm_internal::c_begin(sequence), - container_algorithm_internal::c_end(sequence), count, - std::forward(value), - std::forward(pred)); -} - -//------------------------------------------------------------------------------ -// Modifying sequence operations -//------------------------------------------------------------------------------ - -// c_copy() -// -// Container-based version of the `std::copy()` function to copy a -// container's elements into an iterator. -template -OutputIterator c_copy(const InputSequence& input, OutputIterator output) { - return std::copy(container_algorithm_internal::c_begin(input), - container_algorithm_internal::c_end(input), output); -} - -// c_copy_n() -// -// Container-based version of the `std::copy_n()` function to copy a -// container's first N elements into an iterator. -template -OutputIterator c_copy_n(const C& input, Size n, OutputIterator output) { - return std::copy_n(container_algorithm_internal::c_begin(input), n, output); -} - -// c_copy_if() -// -// Container-based version of the `std::copy_if()` function to copy -// a container's elements satisfying some condition into an iterator. -template -OutputIterator c_copy_if(const InputSequence& input, OutputIterator output, - Pred&& pred) { - return std::copy_if(container_algorithm_internal::c_begin(input), - container_algorithm_internal::c_end(input), output, - std::forward(pred)); -} - -// c_copy_backward() -// -// Container-based version of the `std::copy_backward()` function to -// copy a container's elements in reverse order into an iterator. -template -BidirectionalIterator c_copy_backward(const C& src, - BidirectionalIterator dest) { - return std::copy_backward(container_algorithm_internal::c_begin(src), - container_algorithm_internal::c_end(src), dest); -} - -// c_move() -// -// Container-based version of the `std::move()` function to move -// a container's elements into an iterator. -template -OutputIterator c_move(C&& src, OutputIterator dest) { - return std::move(container_algorithm_internal::c_begin(src), - container_algorithm_internal::c_end(src), dest); -} - -// c_move_backward() -// -// Container-based version of the `std::move_backward()` function to -// move a container's elements into an iterator in reverse order. -template -BidirectionalIterator c_move_backward(C&& src, BidirectionalIterator dest) { - return std::move_backward(container_algorithm_internal::c_begin(src), - container_algorithm_internal::c_end(src), dest); -} - -// c_swap_ranges() -// -// Container-based version of the `std::swap_ranges()` function to -// swap a container's elements with another container's elements. Swaps the -// first N elements of `c1` and `c2`, where N = min(size(c1), size(c2)). -template -container_algorithm_internal::ContainerIter c_swap_ranges(C1& c1, C2& c2) { - auto first1 = container_algorithm_internal::c_begin(c1); - auto last1 = container_algorithm_internal::c_end(c1); - auto first2 = container_algorithm_internal::c_begin(c2); - auto last2 = container_algorithm_internal::c_end(c2); - - using std::swap; - for (; first1 != last1 && first2 != last2; ++first1, (void)++first2) { - swap(*first1, *first2); - } - return first2; -} - -// c_transform() -// -// Container-based version of the `std::transform()` function to -// transform a container's elements using the unary operation, storing the -// result in an iterator pointing to the last transformed element in the output -// range. -template -OutputIterator c_transform(const InputSequence& input, OutputIterator output, - UnaryOp&& unary_op) { - return std::transform(container_algorithm_internal::c_begin(input), - container_algorithm_internal::c_end(input), output, - std::forward(unary_op)); -} - -// Overload of c_transform() for performing a transformation using a binary -// predicate. Applies `binary_op` to the first N elements of `c1` and `c2`, -// where N = min(size(c1), size(c2)). -template -OutputIterator c_transform(const InputSequence1& input1, - const InputSequence2& input2, OutputIterator output, - BinaryOp&& binary_op) { - auto first1 = container_algorithm_internal::c_begin(input1); - auto last1 = container_algorithm_internal::c_end(input1); - auto first2 = container_algorithm_internal::c_begin(input2); - auto last2 = container_algorithm_internal::c_end(input2); - for (; first1 != last1 && first2 != last2; - ++first1, (void)++first2, ++output) { - *output = binary_op(*first1, *first2); - } - - return output; -} - -// c_replace() -// -// Container-based version of the `std::replace()` function to -// replace a container's elements of some value with a new value. The container -// is modified in place. -template -void c_replace(Sequence& sequence, const T& old_value, const T& new_value) { - std::replace(container_algorithm_internal::c_begin(sequence), - container_algorithm_internal::c_end(sequence), old_value, - new_value); -} - -// c_replace_if() -// -// Container-based version of the `std::replace_if()` function to -// replace a container's elements of some value with a new value based on some -// condition. The container is modified in place. -template -void c_replace_if(C& c, Pred&& pred, T&& new_value) { - std::replace_if(container_algorithm_internal::c_begin(c), - container_algorithm_internal::c_end(c), - std::forward(pred), std::forward(new_value)); -} - -// c_replace_copy() -// -// Container-based version of the `std::replace_copy()` function to -// replace a container's elements of some value with a new value and return the -// results within an iterator. -template -OutputIterator c_replace_copy(const C& c, OutputIterator result, T&& old_value, - T&& new_value) { - return std::replace_copy(container_algorithm_internal::c_begin(c), - container_algorithm_internal::c_end(c), result, - std::forward(old_value), - std::forward(new_value)); -} - -// c_replace_copy_if() -// -// Container-based version of the `std::replace_copy_if()` function -// to replace a container's elements of some value with a new value based on -// some condition, and return the results within an iterator. -template -OutputIterator c_replace_copy_if(const C& c, OutputIterator result, Pred&& pred, - const T& new_value) { - return std::replace_copy_if(container_algorithm_internal::c_begin(c), - container_algorithm_internal::c_end(c), result, - std::forward(pred), new_value); -} - -// c_fill() -// -// Container-based version of the `std::fill()` function to fill a -// container with some value. -template -void c_fill(C& c, const T& value) { - std::fill(container_algorithm_internal::c_begin(c), - container_algorithm_internal::c_end(c), value); -} - -// c_fill_n() -// -// Container-based version of the `std::fill_n()` function to fill -// the first N elements in a container with some value. -template -void c_fill_n(C& c, Size n, const T& value) { - std::fill_n(container_algorithm_internal::c_begin(c), n, value); -} - -// c_generate() -// -// Container-based version of the `std::generate()` function to -// assign a container's elements to the values provided by the given generator. -template -void c_generate(C& c, Generator&& gen) { - std::generate(container_algorithm_internal::c_begin(c), - container_algorithm_internal::c_end(c), - std::forward(gen)); -} - -// c_generate_n() -// -// Container-based version of the `std::generate_n()` function to -// assign a container's first N elements to the values provided by the given -// generator. -template -container_algorithm_internal::ContainerIter c_generate_n(C& c, Size n, - Generator&& gen) { - return std::generate_n(container_algorithm_internal::c_begin(c), n, - std::forward(gen)); -} - -// Note: `c_xx()` container versions for `remove()`, `remove_if()`, -// and `unique()` are omitted, because it's not clear whether or not such -// functions should call erase on their supplied sequences afterwards. Either -// behavior would be surprising for a different set of users. - -// c_remove_copy() -// -// Container-based version of the `std::remove_copy()` function to -// copy a container's elements while removing any elements matching the given -// `value`. -template -OutputIterator c_remove_copy(const C& c, OutputIterator result, - const T& value) { - return std::remove_copy(container_algorithm_internal::c_begin(c), - container_algorithm_internal::c_end(c), result, - value); -} - -// c_remove_copy_if() -// -// Container-based version of the `std::remove_copy_if()` function -// to copy a container's elements while removing any elements matching the given -// condition. -template -OutputIterator c_remove_copy_if(const C& c, OutputIterator result, - Pred&& pred) { - return std::remove_copy_if(container_algorithm_internal::c_begin(c), - container_algorithm_internal::c_end(c), result, - std::forward(pred)); -} - -// c_unique_copy() -// -// Container-based version of the `std::unique_copy()` function to -// copy a container's elements while removing any elements containing duplicate -// values. -template -OutputIterator c_unique_copy(const C& c, OutputIterator result) { - return std::unique_copy(container_algorithm_internal::c_begin(c), - container_algorithm_internal::c_end(c), result); -} - -// Overload of c_unique_copy() for using a predicate evaluation other than -// `==` for comparing uniqueness of the element values. -template -OutputIterator c_unique_copy(const C& c, OutputIterator result, - BinaryPredicate&& pred) { - return std::unique_copy(container_algorithm_internal::c_begin(c), - container_algorithm_internal::c_end(c), result, - std::forward(pred)); -} - -// c_reverse() -// -// Container-based version of the `std::reverse()` function to -// reverse a container's elements. -template -void c_reverse(Sequence& sequence) { - std::reverse(container_algorithm_internal::c_begin(sequence), - container_algorithm_internal::c_end(sequence)); -} - -// c_reverse_copy() -// -// Container-based version of the `std::reverse()` function to -// reverse a container's elements and write them to an iterator range. -template -OutputIterator c_reverse_copy(const C& sequence, OutputIterator result) { - return std::reverse_copy(container_algorithm_internal::c_begin(sequence), - container_algorithm_internal::c_end(sequence), - result); -} - -// c_rotate() -// -// Container-based version of the `std::rotate()` function to -// shift a container's elements leftward such that the `middle` element becomes -// the first element in the container. -template > -Iterator c_rotate(C& sequence, Iterator middle) { - return absl::rotate(container_algorithm_internal::c_begin(sequence), middle, - container_algorithm_internal::c_end(sequence)); -} - -// c_rotate_copy() -// -// Container-based version of the `std::rotate_copy()` function to -// shift a container's elements leftward such that the `middle` element becomes -// the first element in a new iterator range. -template -OutputIterator c_rotate_copy( - const C& sequence, - container_algorithm_internal::ContainerIter middle, - OutputIterator result) { - return std::rotate_copy(container_algorithm_internal::c_begin(sequence), - middle, container_algorithm_internal::c_end(sequence), - result); -} - -// c_shuffle() -// -// Container-based version of the `std::shuffle()` function to -// randomly shuffle elements within the container using a `gen()` uniform random -// number generator. -template -void c_shuffle(RandomAccessContainer& c, UniformRandomBitGenerator&& gen) { - std::shuffle(container_algorithm_internal::c_begin(c), - container_algorithm_internal::c_end(c), - std::forward(gen)); -} - -//------------------------------------------------------------------------------ -// Partition functions -//------------------------------------------------------------------------------ - -// c_is_partitioned() -// -// Container-based version of the `std::is_partitioned()` function -// to test whether all elements in the container for which `pred` returns `true` -// precede those for which `pred` is `false`. -template -bool c_is_partitioned(const C& c, Pred&& pred) { - return std::is_partitioned(container_algorithm_internal::c_begin(c), - container_algorithm_internal::c_end(c), - std::forward(pred)); -} - -// c_partition() -// -// Container-based version of the `std::partition()` function -// to rearrange all elements in a container in such a way that all elements for -// which `pred` returns `true` precede all those for which it returns `false`, -// returning an iterator to the first element of the second group. -template -container_algorithm_internal::ContainerIter c_partition(C& c, Pred&& pred) { - return std::partition(container_algorithm_internal::c_begin(c), - container_algorithm_internal::c_end(c), - std::forward(pred)); -} - -// c_stable_partition() -// -// Container-based version of the `std::stable_partition()` function -// to rearrange all elements in a container in such a way that all elements for -// which `pred` returns `true` precede all those for which it returns `false`, -// preserving the relative ordering between the two groups. The function returns -// an iterator to the first element of the second group. -template -container_algorithm_internal::ContainerIter c_stable_partition(C& c, - Pred&& pred) { - return std::stable_partition(container_algorithm_internal::c_begin(c), - container_algorithm_internal::c_end(c), - std::forward(pred)); -} - -// c_partition_copy() -// -// Container-based version of the `std::partition_copy()` function -// to partition a container's elements and return them into two iterators: one -// for which `pred` returns `true`, and one for which `pred` returns `false.` - -template -std::pair c_partition_copy( - const C& c, OutputIterator1 out_true, OutputIterator2 out_false, - Pred&& pred) { - return std::partition_copy(container_algorithm_internal::c_begin(c), - container_algorithm_internal::c_end(c), out_true, - out_false, std::forward(pred)); -} - -// c_partition_point() -// -// Container-based version of the `std::partition_point()` function -// to return the first element of an already partitioned container for which -// the given `pred` is not `true`. -template -container_algorithm_internal::ContainerIter c_partition_point(C& c, - Pred&& pred) { - return std::partition_point(container_algorithm_internal::c_begin(c), - container_algorithm_internal::c_end(c), - std::forward(pred)); -} - -//------------------------------------------------------------------------------ -// Sorting functions -//------------------------------------------------------------------------------ - -// c_sort() -// -// Container-based version of the `std::sort()` function -// to sort elements in ascending order of their values. -template -void c_sort(C& c) { - std::sort(container_algorithm_internal::c_begin(c), - container_algorithm_internal::c_end(c)); -} - -// Overload of c_sort() for performing a `comp` comparison other than the -// default `operator<`. -template -void c_sort(C& c, LessThan&& comp) { - std::sort(container_algorithm_internal::c_begin(c), - container_algorithm_internal::c_end(c), - std::forward(comp)); -} - -// c_stable_sort() -// -// Container-based version of the `std::stable_sort()` function -// to sort elements in ascending order of their values, preserving the order -// of equivalents. -template -void c_stable_sort(C& c) { - std::stable_sort(container_algorithm_internal::c_begin(c), - container_algorithm_internal::c_end(c)); -} - -// Overload of c_stable_sort() for performing a `comp` comparison other than the -// default `operator<`. -template -void c_stable_sort(C& c, LessThan&& comp) { - std::stable_sort(container_algorithm_internal::c_begin(c), - container_algorithm_internal::c_end(c), - std::forward(comp)); -} - -// c_is_sorted() -// -// Container-based version of the `std::is_sorted()` function -// to evaluate whether the given container is sorted in ascending order. -template -bool c_is_sorted(const C& c) { - return std::is_sorted(container_algorithm_internal::c_begin(c), - container_algorithm_internal::c_end(c)); -} - -// c_is_sorted() overload for performing a `comp` comparison other than the -// default `operator<`. -template -bool c_is_sorted(const C& c, LessThan&& comp) { - return std::is_sorted(container_algorithm_internal::c_begin(c), - container_algorithm_internal::c_end(c), - std::forward(comp)); -} - -// c_partial_sort() -// -// Container-based version of the `std::partial_sort()` function -// to rearrange elements within a container such that elements before `middle` -// are sorted in ascending order. -template -void c_partial_sort( - RandomAccessContainer& sequence, - container_algorithm_internal::ContainerIter middle) { - std::partial_sort(container_algorithm_internal::c_begin(sequence), middle, - container_algorithm_internal::c_end(sequence)); -} - -// Overload of c_partial_sort() for performing a `comp` comparison other than -// the default `operator<`. -template -void c_partial_sort( - RandomAccessContainer& sequence, - container_algorithm_internal::ContainerIter middle, - LessThan&& comp) { - std::partial_sort(container_algorithm_internal::c_begin(sequence), middle, - container_algorithm_internal::c_end(sequence), - std::forward(comp)); -} - -// c_partial_sort_copy() -// -// Container-based version of the `std::partial_sort_copy()` -// function to sort the elements in the given range `result` within the larger -// `sequence` in ascending order (and using `result` as the output parameter). -// At most min(result.last - result.first, sequence.last - sequence.first) -// elements from the sequence will be stored in the result. -template -container_algorithm_internal::ContainerIter -c_partial_sort_copy(const C& sequence, RandomAccessContainer& result) { - return std::partial_sort_copy(container_algorithm_internal::c_begin(sequence), - container_algorithm_internal::c_end(sequence), - container_algorithm_internal::c_begin(result), - container_algorithm_internal::c_end(result)); -} - -// Overload of c_partial_sort_copy() for performing a `comp` comparison other -// than the default `operator<`. -template -container_algorithm_internal::ContainerIter -c_partial_sort_copy(const C& sequence, RandomAccessContainer& result, - LessThan&& comp) { - return std::partial_sort_copy(container_algorithm_internal::c_begin(sequence), - container_algorithm_internal::c_end(sequence), - container_algorithm_internal::c_begin(result), - container_algorithm_internal::c_end(result), - std::forward(comp)); -} - -// c_is_sorted_until() -// -// Container-based version of the `std::is_sorted_until()` function -// to return the first element within a container that is not sorted in -// ascending order as an iterator. -template -container_algorithm_internal::ContainerIter c_is_sorted_until(C& c) { - return std::is_sorted_until(container_algorithm_internal::c_begin(c), - container_algorithm_internal::c_end(c)); -} - -// Overload of c_is_sorted_until() for performing a `comp` comparison other than -// the default `operator<`. -template -container_algorithm_internal::ContainerIter c_is_sorted_until( - C& c, LessThan&& comp) { - return std::is_sorted_until(container_algorithm_internal::c_begin(c), - container_algorithm_internal::c_end(c), - std::forward(comp)); -} - -// c_nth_element() -// -// Container-based version of the `std::nth_element()` function -// to rearrange the elements within a container such that the `nth` element -// would be in that position in an ordered sequence; other elements may be in -// any order, except that all preceding `nth` will be less than that element, -// and all following `nth` will be greater than that element. -template -void c_nth_element( - RandomAccessContainer& sequence, - container_algorithm_internal::ContainerIter nth) { - std::nth_element(container_algorithm_internal::c_begin(sequence), nth, - container_algorithm_internal::c_end(sequence)); -} - -// Overload of c_nth_element() for performing a `comp` comparison other than -// the default `operator<`. -template -void c_nth_element( - RandomAccessContainer& sequence, - container_algorithm_internal::ContainerIter nth, - LessThan&& comp) { - std::nth_element(container_algorithm_internal::c_begin(sequence), nth, - container_algorithm_internal::c_end(sequence), - std::forward(comp)); -} - -//------------------------------------------------------------------------------ -// Binary Search -//------------------------------------------------------------------------------ - -// c_lower_bound() -// -// Container-based version of the `std::lower_bound()` function -// to return an iterator pointing to the first element in a sorted container -// which does not compare less than `value`. -template -container_algorithm_internal::ContainerIter c_lower_bound( - Sequence& sequence, const T& value) { - return std::lower_bound(container_algorithm_internal::c_begin(sequence), - container_algorithm_internal::c_end(sequence), value); -} - -// Overload of c_lower_bound() for performing a `comp` comparison other than -// the default `operator<`. -template -container_algorithm_internal::ContainerIter c_lower_bound( - Sequence& sequence, const T& value, LessThan&& comp) { - return std::lower_bound(container_algorithm_internal::c_begin(sequence), - container_algorithm_internal::c_end(sequence), value, - std::forward(comp)); -} - -// c_upper_bound() -// -// Container-based version of the `std::upper_bound()` function -// to return an iterator pointing to the first element in a sorted container -// which is greater than `value`. -template -container_algorithm_internal::ContainerIter c_upper_bound( - Sequence& sequence, const T& value) { - return std::upper_bound(container_algorithm_internal::c_begin(sequence), - container_algorithm_internal::c_end(sequence), value); -} - -// Overload of c_upper_bound() for performing a `comp` comparison other than -// the default `operator<`. -template -container_algorithm_internal::ContainerIter c_upper_bound( - Sequence& sequence, const T& value, LessThan&& comp) { - return std::upper_bound(container_algorithm_internal::c_begin(sequence), - container_algorithm_internal::c_end(sequence), value, - std::forward(comp)); -} - -// c_equal_range() -// -// Container-based version of the `std::equal_range()` function -// to return an iterator pair pointing to the first and last elements in a -// sorted container which compare equal to `value`. -template -container_algorithm_internal::ContainerIterPairType -c_equal_range(Sequence& sequence, const T& value) { - return std::equal_range(container_algorithm_internal::c_begin(sequence), - container_algorithm_internal::c_end(sequence), value); -} - -// Overload of c_equal_range() for performing a `comp` comparison other than -// the default `operator<`. -template -container_algorithm_internal::ContainerIterPairType -c_equal_range(Sequence& sequence, const T& value, LessThan&& comp) { - return std::equal_range(container_algorithm_internal::c_begin(sequence), - container_algorithm_internal::c_end(sequence), value, - std::forward(comp)); -} - -// c_binary_search() -// -// Container-based version of the `std::binary_search()` function -// to test if any element in the sorted container contains a value equivalent to -// 'value'. -template -bool c_binary_search(Sequence&& sequence, const T& value) { - return std::binary_search(container_algorithm_internal::c_begin(sequence), - container_algorithm_internal::c_end(sequence), - value); -} - -// Overload of c_binary_search() for performing a `comp` comparison other than -// the default `operator<`. -template -bool c_binary_search(Sequence&& sequence, const T& value, LessThan&& comp) { - return std::binary_search(container_algorithm_internal::c_begin(sequence), - container_algorithm_internal::c_end(sequence), - value, std::forward(comp)); -} - -//------------------------------------------------------------------------------ -// Merge functions -//------------------------------------------------------------------------------ - -// c_merge() -// -// Container-based version of the `std::merge()` function -// to merge two sorted containers into a single sorted iterator. -template -OutputIterator c_merge(const C1& c1, const C2& c2, OutputIterator result) { - return std::merge(container_algorithm_internal::c_begin(c1), - container_algorithm_internal::c_end(c1), - container_algorithm_internal::c_begin(c2), - container_algorithm_internal::c_end(c2), result); -} - -// Overload of c_merge() for performing a `comp` comparison other than -// the default `operator<`. -template -OutputIterator c_merge(const C1& c1, const C2& c2, OutputIterator result, - LessThan&& comp) { - return std::merge(container_algorithm_internal::c_begin(c1), - container_algorithm_internal::c_end(c1), - container_algorithm_internal::c_begin(c2), - container_algorithm_internal::c_end(c2), result, - std::forward(comp)); -} - -// c_inplace_merge() -// -// Container-based version of the `std::inplace_merge()` function -// to merge a supplied iterator `middle` into a container. -template -void c_inplace_merge(C& c, - container_algorithm_internal::ContainerIter middle) { - std::inplace_merge(container_algorithm_internal::c_begin(c), middle, - container_algorithm_internal::c_end(c)); -} - -// Overload of c_inplace_merge() for performing a merge using a `comp` other -// than `operator<`. -template -void c_inplace_merge(C& c, - container_algorithm_internal::ContainerIter middle, - LessThan&& comp) { - std::inplace_merge(container_algorithm_internal::c_begin(c), middle, - container_algorithm_internal::c_end(c), - std::forward(comp)); -} - -// c_includes() -// -// Container-based version of the `std::includes()` function -// to test whether a sorted container `c1` entirely contains another sorted -// container `c2`. -template -bool c_includes(const C1& c1, const C2& c2) { - return std::includes(container_algorithm_internal::c_begin(c1), - container_algorithm_internal::c_end(c1), - container_algorithm_internal::c_begin(c2), - container_algorithm_internal::c_end(c2)); -} - -// Overload of c_includes() for performing a merge using a `comp` other than -// `operator<`. -template -bool c_includes(const C1& c1, const C2& c2, LessThan&& comp) { - return std::includes(container_algorithm_internal::c_begin(c1), - container_algorithm_internal::c_end(c1), - container_algorithm_internal::c_begin(c2), - container_algorithm_internal::c_end(c2), - std::forward(comp)); -} - -// c_set_union() -// -// Container-based version of the `std::set_union()` function -// to return an iterator containing the union of two containers; duplicate -// values are not copied into the output. -template ::value, - void>::type, - typename = typename std::enable_if< - !container_algorithm_internal::IsUnorderedContainer::value, - void>::type> -OutputIterator c_set_union(const C1& c1, const C2& c2, OutputIterator output) { - return std::set_union(container_algorithm_internal::c_begin(c1), - container_algorithm_internal::c_end(c1), - container_algorithm_internal::c_begin(c2), - container_algorithm_internal::c_end(c2), output); -} - -// Overload of c_set_union() for performing a merge using a `comp` other than -// `operator<`. -template ::value, - void>::type, - typename = typename std::enable_if< - !container_algorithm_internal::IsUnorderedContainer::value, - void>::type> -OutputIterator c_set_union(const C1& c1, const C2& c2, OutputIterator output, - LessThan&& comp) { - return std::set_union(container_algorithm_internal::c_begin(c1), - container_algorithm_internal::c_end(c1), - container_algorithm_internal::c_begin(c2), - container_algorithm_internal::c_end(c2), output, - std::forward(comp)); -} - -// c_set_intersection() -// -// Container-based version of the `std::set_intersection()` function -// to return an iterator containing the intersection of two sorted containers. -template ::value, - void>::type, - typename = typename std::enable_if< - !container_algorithm_internal::IsUnorderedContainer::value, - void>::type> -OutputIterator c_set_intersection(const C1& c1, const C2& c2, - OutputIterator output) { - // In debug builds, ensure that both containers are sorted with respect to the - // default comparator. std::set_intersection requires the containers be sorted - // using operator<. - assert(absl::c_is_sorted(c1)); - assert(absl::c_is_sorted(c2)); - return std::set_intersection(container_algorithm_internal::c_begin(c1), - container_algorithm_internal::c_end(c1), - container_algorithm_internal::c_begin(c2), - container_algorithm_internal::c_end(c2), output); -} - -// Overload of c_set_intersection() for performing a merge using a `comp` other -// than `operator<`. -template ::value, - void>::type, - typename = typename std::enable_if< - !container_algorithm_internal::IsUnorderedContainer::value, - void>::type> -OutputIterator c_set_intersection(const C1& c1, const C2& c2, - OutputIterator output, LessThan&& comp) { - // In debug builds, ensure that both containers are sorted with respect to the - // default comparator. std::set_intersection requires the containers be sorted - // using the same comparator. - assert(absl::c_is_sorted(c1, comp)); - assert(absl::c_is_sorted(c2, comp)); - return std::set_intersection(container_algorithm_internal::c_begin(c1), - container_algorithm_internal::c_end(c1), - container_algorithm_internal::c_begin(c2), - container_algorithm_internal::c_end(c2), output, - std::forward(comp)); -} - -// c_set_difference() -// -// Container-based version of the `std::set_difference()` function -// to return an iterator containing elements present in the first container but -// not in the second. -template ::value, - void>::type, - typename = typename std::enable_if< - !container_algorithm_internal::IsUnorderedContainer::value, - void>::type> -OutputIterator c_set_difference(const C1& c1, const C2& c2, - OutputIterator output) { - return std::set_difference(container_algorithm_internal::c_begin(c1), - container_algorithm_internal::c_end(c1), - container_algorithm_internal::c_begin(c2), - container_algorithm_internal::c_end(c2), output); -} - -// Overload of c_set_difference() for performing a merge using a `comp` other -// than `operator<`. -template ::value, - void>::type, - typename = typename std::enable_if< - !container_algorithm_internal::IsUnorderedContainer::value, - void>::type> -OutputIterator c_set_difference(const C1& c1, const C2& c2, - OutputIterator output, LessThan&& comp) { - return std::set_difference(container_algorithm_internal::c_begin(c1), - container_algorithm_internal::c_end(c1), - container_algorithm_internal::c_begin(c2), - container_algorithm_internal::c_end(c2), output, - std::forward(comp)); -} - -// c_set_symmetric_difference() -// -// Container-based version of the `std::set_symmetric_difference()` -// function to return an iterator containing elements present in either one -// container or the other, but not both. -template ::value, - void>::type, - typename = typename std::enable_if< - !container_algorithm_internal::IsUnorderedContainer::value, - void>::type> -OutputIterator c_set_symmetric_difference(const C1& c1, const C2& c2, - OutputIterator output) { - return std::set_symmetric_difference( - container_algorithm_internal::c_begin(c1), - container_algorithm_internal::c_end(c1), - container_algorithm_internal::c_begin(c2), - container_algorithm_internal::c_end(c2), output); -} - -// Overload of c_set_symmetric_difference() for performing a merge using a -// `comp` other than `operator<`. -template ::value, - void>::type, - typename = typename std::enable_if< - !container_algorithm_internal::IsUnorderedContainer::value, - void>::type> -OutputIterator c_set_symmetric_difference(const C1& c1, const C2& c2, - OutputIterator output, - LessThan&& comp) { - return std::set_symmetric_difference( - container_algorithm_internal::c_begin(c1), - container_algorithm_internal::c_end(c1), - container_algorithm_internal::c_begin(c2), - container_algorithm_internal::c_end(c2), output, - std::forward(comp)); -} - -//------------------------------------------------------------------------------ -// Heap functions -//------------------------------------------------------------------------------ - -// c_push_heap() -// -// Container-based version of the `std::push_heap()` function -// to push a value onto a container heap. -template -void c_push_heap(RandomAccessContainer& sequence) { - std::push_heap(container_algorithm_internal::c_begin(sequence), - container_algorithm_internal::c_end(sequence)); -} - -// Overload of c_push_heap() for performing a push operation on a heap using a -// `comp` other than `operator<`. -template -void c_push_heap(RandomAccessContainer& sequence, LessThan&& comp) { - std::push_heap(container_algorithm_internal::c_begin(sequence), - container_algorithm_internal::c_end(sequence), - std::forward(comp)); -} - -// c_pop_heap() -// -// Container-based version of the `std::pop_heap()` function -// to pop a value from a heap container. -template -void c_pop_heap(RandomAccessContainer& sequence) { - std::pop_heap(container_algorithm_internal::c_begin(sequence), - container_algorithm_internal::c_end(sequence)); -} - -// Overload of c_pop_heap() for performing a pop operation on a heap using a -// `comp` other than `operator<`. -template -void c_pop_heap(RandomAccessContainer& sequence, LessThan&& comp) { - std::pop_heap(container_algorithm_internal::c_begin(sequence), - container_algorithm_internal::c_end(sequence), - std::forward(comp)); -} - -// c_make_heap() -// -// Container-based version of the `std::make_heap()` function -// to make a container a heap. -template -void c_make_heap(RandomAccessContainer& sequence) { - std::make_heap(container_algorithm_internal::c_begin(sequence), - container_algorithm_internal::c_end(sequence)); -} - -// Overload of c_make_heap() for performing heap comparisons using a -// `comp` other than `operator<` -template -void c_make_heap(RandomAccessContainer& sequence, LessThan&& comp) { - std::make_heap(container_algorithm_internal::c_begin(sequence), - container_algorithm_internal::c_end(sequence), - std::forward(comp)); -} - -// c_sort_heap() -// -// Container-based version of the `std::sort_heap()` function -// to sort a heap into ascending order (after which it is no longer a heap). -template -void c_sort_heap(RandomAccessContainer& sequence) { - std::sort_heap(container_algorithm_internal::c_begin(sequence), - container_algorithm_internal::c_end(sequence)); -} - -// Overload of c_sort_heap() for performing heap comparisons using a -// `comp` other than `operator<` -template -void c_sort_heap(RandomAccessContainer& sequence, LessThan&& comp) { - std::sort_heap(container_algorithm_internal::c_begin(sequence), - container_algorithm_internal::c_end(sequence), - std::forward(comp)); -} - -// c_is_heap() -// -// Container-based version of the `std::is_heap()` function -// to check whether the given container is a heap. -template -bool c_is_heap(const RandomAccessContainer& sequence) { - return std::is_heap(container_algorithm_internal::c_begin(sequence), - container_algorithm_internal::c_end(sequence)); -} - -// Overload of c_is_heap() for performing heap comparisons using a -// `comp` other than `operator<` -template -bool c_is_heap(const RandomAccessContainer& sequence, LessThan&& comp) { - return std::is_heap(container_algorithm_internal::c_begin(sequence), - container_algorithm_internal::c_end(sequence), - std::forward(comp)); -} - -// c_is_heap_until() -// -// Container-based version of the `std::is_heap_until()` function -// to find the first element in a given container which is not in heap order. -template -container_algorithm_internal::ContainerIter -c_is_heap_until(RandomAccessContainer& sequence) { - return std::is_heap_until(container_algorithm_internal::c_begin(sequence), - container_algorithm_internal::c_end(sequence)); -} - -// Overload of c_is_heap_until() for performing heap comparisons using a -// `comp` other than `operator<` -template -container_algorithm_internal::ContainerIter -c_is_heap_until(RandomAccessContainer& sequence, LessThan&& comp) { - return std::is_heap_until(container_algorithm_internal::c_begin(sequence), - container_algorithm_internal::c_end(sequence), - std::forward(comp)); -} - -//------------------------------------------------------------------------------ -// Min/max -//------------------------------------------------------------------------------ - -// c_min_element() -// -// Container-based version of the `std::min_element()` function -// to return an iterator pointing to the element with the smallest value, using -// `operator<` to make the comparisons. -template -container_algorithm_internal::ContainerIter c_min_element( - Sequence& sequence) { - return std::min_element(container_algorithm_internal::c_begin(sequence), - container_algorithm_internal::c_end(sequence)); -} - -// Overload of c_min_element() for performing a `comp` comparison other than -// `operator<`. -template -container_algorithm_internal::ContainerIter c_min_element( - Sequence& sequence, LessThan&& comp) { - return std::min_element(container_algorithm_internal::c_begin(sequence), - container_algorithm_internal::c_end(sequence), - std::forward(comp)); -} - -// c_max_element() -// -// Container-based version of the `std::max_element()` function -// to return an iterator pointing to the element with the largest value, using -// `operator<` to make the comparisons. -template -container_algorithm_internal::ContainerIter c_max_element( - Sequence& sequence) { - return std::max_element(container_algorithm_internal::c_begin(sequence), - container_algorithm_internal::c_end(sequence)); -} - -// Overload of c_max_element() for performing a `comp` comparison other than -// `operator<`. -template -container_algorithm_internal::ContainerIter c_max_element( - Sequence& sequence, LessThan&& comp) { - return std::max_element(container_algorithm_internal::c_begin(sequence), - container_algorithm_internal::c_end(sequence), - std::forward(comp)); -} - -// c_minmax_element() -// -// Container-based version of the `std::minmax_element()` function -// to return a pair of iterators pointing to the elements containing the -// smallest and largest values, respectively, using `operator<` to make the -// comparisons. -template -container_algorithm_internal::ContainerIterPairType c_minmax_element( - C& c) { - return std::minmax_element(container_algorithm_internal::c_begin(c), - container_algorithm_internal::c_end(c)); -} - -// Overload of c_minmax_element() for performing `comp` comparisons other than -// `operator<`. -template -container_algorithm_internal::ContainerIterPairType c_minmax_element( - C& c, LessThan&& comp) { - return std::minmax_element(container_algorithm_internal::c_begin(c), - container_algorithm_internal::c_end(c), - std::forward(comp)); -} - -//------------------------------------------------------------------------------ -// Lexicographical Comparisons -//------------------------------------------------------------------------------ - -// c_lexicographical_compare() -// -// Container-based version of the `std::lexicographical_compare()` -// function to lexicographically compare (e.g. sort words alphabetically) two -// container sequences. The comparison is performed using `operator<`. Note -// that capital letters ("A-Z") have ASCII values less than lowercase letters -// ("a-z"). -template -bool c_lexicographical_compare(const Sequence1& sequence1, - const Sequence2& sequence2) { - return std::lexicographical_compare( - container_algorithm_internal::c_begin(sequence1), - container_algorithm_internal::c_end(sequence1), - container_algorithm_internal::c_begin(sequence2), - container_algorithm_internal::c_end(sequence2)); -} - -// Overload of c_lexicographical_compare() for performing a lexicographical -// comparison using a `comp` operator instead of `operator<`. -template -bool c_lexicographical_compare(const Sequence1& sequence1, - const Sequence2& sequence2, LessThan&& comp) { - return std::lexicographical_compare( - container_algorithm_internal::c_begin(sequence1), - container_algorithm_internal::c_end(sequence1), - container_algorithm_internal::c_begin(sequence2), - container_algorithm_internal::c_end(sequence2), - std::forward(comp)); -} - -// c_next_permutation() -// -// Container-based version of the `std::next_permutation()` function -// to rearrange a container's elements into the next lexicographically greater -// permutation. -template -bool c_next_permutation(C& c) { - return std::next_permutation(container_algorithm_internal::c_begin(c), - container_algorithm_internal::c_end(c)); -} - -// Overload of c_next_permutation() for performing a lexicographical -// comparison using a `comp` operator instead of `operator<`. -template -bool c_next_permutation(C& c, LessThan&& comp) { - return std::next_permutation(container_algorithm_internal::c_begin(c), - container_algorithm_internal::c_end(c), - std::forward(comp)); -} - -// c_prev_permutation() -// -// Container-based version of the `std::prev_permutation()` function -// to rearrange a container's elements into the next lexicographically lesser -// permutation. -template -bool c_prev_permutation(C& c) { - return std::prev_permutation(container_algorithm_internal::c_begin(c), - container_algorithm_internal::c_end(c)); -} - -// Overload of c_prev_permutation() for performing a lexicographical -// comparison using a `comp` operator instead of `operator<`. -template -bool c_prev_permutation(C& c, LessThan&& comp) { - return std::prev_permutation(container_algorithm_internal::c_begin(c), - container_algorithm_internal::c_end(c), - std::forward(comp)); -} - -//------------------------------------------------------------------------------ -// algorithms -//------------------------------------------------------------------------------ - -// c_iota() -// -// Container-based version of the `std::iota()` function -// to compute successive values of `value`, as if incremented with `++value` -// after each element is written. and write them to the container. -template -void c_iota(Sequence& sequence, const T& value) { - std::iota(container_algorithm_internal::c_begin(sequence), - container_algorithm_internal::c_end(sequence), value); -} - -// c_accumulate() -// -// Container-based version of the `std::accumulate()` function -// to accumulate the element values of a container to `init` and return that -// accumulation by value. -// -// Note: Due to a language technicality this function has return type -// absl::decay_t. As a user of this function you can casually read -// this as "returns T by value" and assume it does the right thing. -template -decay_t c_accumulate(const Sequence& sequence, T&& init) { - return std::accumulate(container_algorithm_internal::c_begin(sequence), - container_algorithm_internal::c_end(sequence), - std::forward(init)); -} - -// Overload of c_accumulate() for using a binary operations other than -// addition for computing the accumulation. -template -decay_t c_accumulate(const Sequence& sequence, T&& init, - BinaryOp&& binary_op) { - return std::accumulate(container_algorithm_internal::c_begin(sequence), - container_algorithm_internal::c_end(sequence), - std::forward(init), - std::forward(binary_op)); -} - -// c_inner_product() -// -// Container-based version of the `std::inner_product()` function -// to compute the cumulative inner product of container element pairs. -// -// Note: Due to a language technicality this function has return type -// absl::decay_t. As a user of this function you can casually read -// this as "returns T by value" and assume it does the right thing. -template -decay_t c_inner_product(const Sequence1& factors1, const Sequence2& factors2, - T&& sum) { - return std::inner_product(container_algorithm_internal::c_begin(factors1), - container_algorithm_internal::c_end(factors1), - container_algorithm_internal::c_begin(factors2), - std::forward(sum)); -} - -// Overload of c_inner_product() for using binary operations other than -// `operator+` (for computing the accumulation) and `operator*` (for computing -// the product between the two container's element pair). -template -decay_t c_inner_product(const Sequence1& factors1, const Sequence2& factors2, - T&& sum, BinaryOp1&& op1, BinaryOp2&& op2) { - return std::inner_product(container_algorithm_internal::c_begin(factors1), - container_algorithm_internal::c_end(factors1), - container_algorithm_internal::c_begin(factors2), - std::forward(sum), std::forward(op1), - std::forward(op2)); -} - -// c_adjacent_difference() -// -// Container-based version of the `std::adjacent_difference()` -// function to compute the difference between each element and the one preceding -// it and write it to an iterator. -template -OutputIt c_adjacent_difference(const InputSequence& input, - OutputIt output_first) { - return std::adjacent_difference(container_algorithm_internal::c_begin(input), - container_algorithm_internal::c_end(input), - output_first); -} - -// Overload of c_adjacent_difference() for using a binary operation other than -// subtraction to compute the adjacent difference. -template -OutputIt c_adjacent_difference(const InputSequence& input, - OutputIt output_first, BinaryOp&& op) { - return std::adjacent_difference(container_algorithm_internal::c_begin(input), - container_algorithm_internal::c_end(input), - output_first, std::forward(op)); -} - -// c_partial_sum() -// -// Container-based version of the `std::partial_sum()` function -// to compute the partial sum of the elements in a sequence and write them -// to an iterator. The partial sum is the sum of all element values so far in -// the sequence. -template -OutputIt c_partial_sum(const InputSequence& input, OutputIt output_first) { - return std::partial_sum(container_algorithm_internal::c_begin(input), - container_algorithm_internal::c_end(input), - output_first); -} - -// Overload of c_partial_sum() for using a binary operation other than addition -// to compute the "partial sum". -template -OutputIt c_partial_sum(const InputSequence& input, OutputIt output_first, - BinaryOp&& op) { - return std::partial_sum(container_algorithm_internal::c_begin(input), - container_algorithm_internal::c_end(input), - output_first, std::forward(op)); -} - -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_ALGORITHM_CONTAINER_H_ diff --git a/src/third_party/abseil-cpp/absl/algorithm/container_test.cc b/src/third_party/abseil-cpp/absl/algorithm/container_test.cc deleted file mode 100644 index 0fbc7773e8..0000000000 --- a/src/third_party/abseil-cpp/absl/algorithm/container_test.cc +++ /dev/null @@ -1,1127 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/algorithm/container.h" - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "gmock/gmock.h" -#include "gtest/gtest.h" -#include "absl/base/casts.h" -#include "absl/base/macros.h" -#include "absl/memory/memory.h" -#include "absl/types/span.h" - -namespace { - -using ::testing::Each; -using ::testing::ElementsAre; -using ::testing::Gt; -using ::testing::IsNull; -using ::testing::Lt; -using ::testing::Pointee; -using ::testing::Truly; -using ::testing::UnorderedElementsAre; - -// Most of these tests just check that the code compiles, not that it -// does the right thing. That's fine since the functions just forward -// to the STL implementation. -class NonMutatingTest : public testing::Test { - protected: - std::unordered_set container_ = {1, 2, 3}; - std::list sequence_ = {1, 2, 3}; - std::vector vector_ = {1, 2, 3}; - int array_[3] = {1, 2, 3}; -}; - -struct AccumulateCalls { - void operator()(int value) { calls.push_back(value); } - std::vector calls; -}; - -bool Predicate(int value) { return value < 3; } -bool BinPredicate(int v1, int v2) { return v1 < v2; } -bool Equals(int v1, int v2) { return v1 == v2; } -bool IsOdd(int x) { return x % 2 != 0; } - -TEST_F(NonMutatingTest, Distance) { - EXPECT_EQ(container_.size(), - static_cast(absl::c_distance(container_))); - EXPECT_EQ(sequence_.size(), static_cast(absl::c_distance(sequence_))); - EXPECT_EQ(vector_.size(), static_cast(absl::c_distance(vector_))); - EXPECT_EQ(ABSL_ARRAYSIZE(array_), - static_cast(absl::c_distance(array_))); - - // Works with a temporary argument. - EXPECT_EQ(vector_.size(), - static_cast(absl::c_distance(std::vector(vector_)))); -} - -TEST_F(NonMutatingTest, Distance_OverloadedBeginEnd) { - // Works with classes which have custom ADL-selected overloads of std::begin - // and std::end. - std::initializer_list a = {1, 2, 3}; - std::valarray b = {1, 2, 3}; - EXPECT_EQ(3, absl::c_distance(a)); - EXPECT_EQ(3, absl::c_distance(b)); - - // It is assumed that other c_* functions use the same mechanism for - // ADL-selecting begin/end overloads. -} - -TEST_F(NonMutatingTest, ForEach) { - AccumulateCalls c = absl::c_for_each(container_, AccumulateCalls()); - // Don't rely on the unordered_set's order. - std::sort(c.calls.begin(), c.calls.end()); - EXPECT_EQ(vector_, c.calls); - - // Works with temporary container, too. - AccumulateCalls c2 = - absl::c_for_each(std::unordered_set(container_), AccumulateCalls()); - std::sort(c2.calls.begin(), c2.calls.end()); - EXPECT_EQ(vector_, c2.calls); -} - -TEST_F(NonMutatingTest, FindReturnsCorrectType) { - auto it = absl::c_find(container_, 3); - EXPECT_EQ(3, *it); - absl::c_find(absl::implicit_cast&>(sequence_), 3); -} - -TEST_F(NonMutatingTest, FindIf) { absl::c_find_if(container_, Predicate); } - -TEST_F(NonMutatingTest, FindIfNot) { - absl::c_find_if_not(container_, Predicate); -} - -TEST_F(NonMutatingTest, FindEnd) { - absl::c_find_end(sequence_, vector_); - absl::c_find_end(vector_, sequence_); -} - -TEST_F(NonMutatingTest, FindEndWithPredicate) { - absl::c_find_end(sequence_, vector_, BinPredicate); - absl::c_find_end(vector_, sequence_, BinPredicate); -} - -TEST_F(NonMutatingTest, FindFirstOf) { - absl::c_find_first_of(container_, sequence_); - absl::c_find_first_of(sequence_, container_); -} - -TEST_F(NonMutatingTest, FindFirstOfWithPredicate) { - absl::c_find_first_of(container_, sequence_, BinPredicate); - absl::c_find_first_of(sequence_, container_, BinPredicate); -} - -TEST_F(NonMutatingTest, AdjacentFind) { absl::c_adjacent_find(sequence_); } - -TEST_F(NonMutatingTest, AdjacentFindWithPredicate) { - absl::c_adjacent_find(sequence_, BinPredicate); -} - -TEST_F(NonMutatingTest, Count) { EXPECT_EQ(1, absl::c_count(container_, 3)); } - -TEST_F(NonMutatingTest, CountIf) { - EXPECT_EQ(2, absl::c_count_if(container_, Predicate)); - const std::unordered_set& const_container = container_; - EXPECT_EQ(2, absl::c_count_if(const_container, Predicate)); -} - -TEST_F(NonMutatingTest, Mismatch) { - // Testing necessary as absl::c_mismatch executes logic. - { - auto result = absl::c_mismatch(vector_, sequence_); - EXPECT_EQ(result.first, vector_.end()); - EXPECT_EQ(result.second, sequence_.end()); - } - { - auto result = absl::c_mismatch(sequence_, vector_); - EXPECT_EQ(result.first, sequence_.end()); - EXPECT_EQ(result.second, vector_.end()); - } - - sequence_.back() = 5; - { - auto result = absl::c_mismatch(vector_, sequence_); - EXPECT_EQ(result.first, std::prev(vector_.end())); - EXPECT_EQ(result.second, std::prev(sequence_.end())); - } - { - auto result = absl::c_mismatch(sequence_, vector_); - EXPECT_EQ(result.first, std::prev(sequence_.end())); - EXPECT_EQ(result.second, std::prev(vector_.end())); - } - - sequence_.pop_back(); - { - auto result = absl::c_mismatch(vector_, sequence_); - EXPECT_EQ(result.first, std::prev(vector_.end())); - EXPECT_EQ(result.second, sequence_.end()); - } - { - auto result = absl::c_mismatch(sequence_, vector_); - EXPECT_EQ(result.first, sequence_.end()); - EXPECT_EQ(result.second, std::prev(vector_.end())); - } - { - struct NoNotEquals { - constexpr bool operator==(NoNotEquals) const { return true; } - constexpr bool operator!=(NoNotEquals) const = delete; - }; - std::vector first; - std::list second; - - // Check this still compiles. - absl::c_mismatch(first, second); - } -} - -TEST_F(NonMutatingTest, MismatchWithPredicate) { - // Testing necessary as absl::c_mismatch executes logic. - { - auto result = absl::c_mismatch(vector_, sequence_, BinPredicate); - EXPECT_EQ(result.first, vector_.begin()); - EXPECT_EQ(result.second, sequence_.begin()); - } - { - auto result = absl::c_mismatch(sequence_, vector_, BinPredicate); - EXPECT_EQ(result.first, sequence_.begin()); - EXPECT_EQ(result.second, vector_.begin()); - } - - sequence_.front() = 0; - { - auto result = absl::c_mismatch(vector_, sequence_, BinPredicate); - EXPECT_EQ(result.first, vector_.begin()); - EXPECT_EQ(result.second, sequence_.begin()); - } - { - auto result = absl::c_mismatch(sequence_, vector_, BinPredicate); - EXPECT_EQ(result.first, std::next(sequence_.begin())); - EXPECT_EQ(result.second, std::next(vector_.begin())); - } - - sequence_.clear(); - { - auto result = absl::c_mismatch(vector_, sequence_, BinPredicate); - EXPECT_EQ(result.first, vector_.begin()); - EXPECT_EQ(result.second, sequence_.end()); - } - { - auto result = absl::c_mismatch(sequence_, vector_, BinPredicate); - EXPECT_EQ(result.first, sequence_.end()); - EXPECT_EQ(result.second, vector_.begin()); - } -} - -TEST_F(NonMutatingTest, Equal) { - EXPECT_TRUE(absl::c_equal(vector_, sequence_)); - EXPECT_TRUE(absl::c_equal(sequence_, vector_)); - EXPECT_TRUE(absl::c_equal(sequence_, array_)); - EXPECT_TRUE(absl::c_equal(array_, vector_)); - - // Test that behavior appropriately differs from that of equal(). - std::vector vector_plus = {1, 2, 3}; - vector_plus.push_back(4); - EXPECT_FALSE(absl::c_equal(vector_plus, sequence_)); - EXPECT_FALSE(absl::c_equal(sequence_, vector_plus)); - EXPECT_FALSE(absl::c_equal(array_, vector_plus)); -} - -TEST_F(NonMutatingTest, EqualWithPredicate) { - EXPECT_TRUE(absl::c_equal(vector_, sequence_, Equals)); - EXPECT_TRUE(absl::c_equal(sequence_, vector_, Equals)); - EXPECT_TRUE(absl::c_equal(array_, sequence_, Equals)); - EXPECT_TRUE(absl::c_equal(vector_, array_, Equals)); - - // Test that behavior appropriately differs from that of equal(). - std::vector vector_plus = {1, 2, 3}; - vector_plus.push_back(4); - EXPECT_FALSE(absl::c_equal(vector_plus, sequence_, Equals)); - EXPECT_FALSE(absl::c_equal(sequence_, vector_plus, Equals)); - EXPECT_FALSE(absl::c_equal(vector_plus, array_, Equals)); -} - -TEST_F(NonMutatingTest, IsPermutation) { - auto vector_permut_ = vector_; - std::next_permutation(vector_permut_.begin(), vector_permut_.end()); - EXPECT_TRUE(absl::c_is_permutation(vector_permut_, sequence_)); - EXPECT_TRUE(absl::c_is_permutation(sequence_, vector_permut_)); - - // Test that behavior appropriately differs from that of is_permutation(). - std::vector vector_plus = {1, 2, 3}; - vector_plus.push_back(4); - EXPECT_FALSE(absl::c_is_permutation(vector_plus, sequence_)); - EXPECT_FALSE(absl::c_is_permutation(sequence_, vector_plus)); -} - -TEST_F(NonMutatingTest, IsPermutationWithPredicate) { - auto vector_permut_ = vector_; - std::next_permutation(vector_permut_.begin(), vector_permut_.end()); - EXPECT_TRUE(absl::c_is_permutation(vector_permut_, sequence_, Equals)); - EXPECT_TRUE(absl::c_is_permutation(sequence_, vector_permut_, Equals)); - - // Test that behavior appropriately differs from that of is_permutation(). - std::vector vector_plus = {1, 2, 3}; - vector_plus.push_back(4); - EXPECT_FALSE(absl::c_is_permutation(vector_plus, sequence_, Equals)); - EXPECT_FALSE(absl::c_is_permutation(sequence_, vector_plus, Equals)); -} - -TEST_F(NonMutatingTest, Search) { - absl::c_search(sequence_, vector_); - absl::c_search(vector_, sequence_); - absl::c_search(array_, sequence_); -} - -TEST_F(NonMutatingTest, SearchWithPredicate) { - absl::c_search(sequence_, vector_, BinPredicate); - absl::c_search(vector_, sequence_, BinPredicate); -} - -TEST_F(NonMutatingTest, SearchN) { absl::c_search_n(sequence_, 3, 1); } - -TEST_F(NonMutatingTest, SearchNWithPredicate) { - absl::c_search_n(sequence_, 3, 1, BinPredicate); -} - -TEST_F(NonMutatingTest, LowerBound) { - std::list::iterator i = absl::c_lower_bound(sequence_, 3); - ASSERT_TRUE(i != sequence_.end()); - EXPECT_EQ(2, std::distance(sequence_.begin(), i)); - EXPECT_EQ(3, *i); -} - -TEST_F(NonMutatingTest, LowerBoundWithPredicate) { - std::vector v(vector_); - std::sort(v.begin(), v.end(), std::greater()); - std::vector::iterator i = absl::c_lower_bound(v, 3, std::greater()); - EXPECT_TRUE(i == v.begin()); - EXPECT_EQ(3, *i); -} - -TEST_F(NonMutatingTest, UpperBound) { - std::list::iterator i = absl::c_upper_bound(sequence_, 1); - ASSERT_TRUE(i != sequence_.end()); - EXPECT_EQ(1, std::distance(sequence_.begin(), i)); - EXPECT_EQ(2, *i); -} - -TEST_F(NonMutatingTest, UpperBoundWithPredicate) { - std::vector v(vector_); - std::sort(v.begin(), v.end(), std::greater()); - std::vector::iterator i = absl::c_upper_bound(v, 1, std::greater()); - EXPECT_EQ(3, i - v.begin()); - EXPECT_TRUE(i == v.end()); -} - -TEST_F(NonMutatingTest, EqualRange) { - std::pair::iterator, std::list::iterator> p = - absl::c_equal_range(sequence_, 2); - EXPECT_EQ(1, std::distance(sequence_.begin(), p.first)); - EXPECT_EQ(2, std::distance(sequence_.begin(), p.second)); -} - -TEST_F(NonMutatingTest, EqualRangeArray) { - auto p = absl::c_equal_range(array_, 2); - EXPECT_EQ(1, std::distance(std::begin(array_), p.first)); - EXPECT_EQ(2, std::distance(std::begin(array_), p.second)); -} - -TEST_F(NonMutatingTest, EqualRangeWithPredicate) { - std::vector v(vector_); - std::sort(v.begin(), v.end(), std::greater()); - std::pair::iterator, std::vector::iterator> p = - absl::c_equal_range(v, 2, std::greater()); - EXPECT_EQ(1, std::distance(v.begin(), p.first)); - EXPECT_EQ(2, std::distance(v.begin(), p.second)); -} - -TEST_F(NonMutatingTest, BinarySearch) { - EXPECT_TRUE(absl::c_binary_search(vector_, 2)); - EXPECT_TRUE(absl::c_binary_search(std::vector(vector_), 2)); -} - -TEST_F(NonMutatingTest, BinarySearchWithPredicate) { - std::vector v(vector_); - std::sort(v.begin(), v.end(), std::greater()); - EXPECT_TRUE(absl::c_binary_search(v, 2, std::greater())); - EXPECT_TRUE( - absl::c_binary_search(std::vector(v), 2, std::greater())); -} - -TEST_F(NonMutatingTest, MinElement) { - std::list::iterator i = absl::c_min_element(sequence_); - ASSERT_TRUE(i != sequence_.end()); - EXPECT_EQ(*i, 1); -} - -TEST_F(NonMutatingTest, MinElementWithPredicate) { - std::list::iterator i = - absl::c_min_element(sequence_, std::greater()); - ASSERT_TRUE(i != sequence_.end()); - EXPECT_EQ(*i, 3); -} - -TEST_F(NonMutatingTest, MaxElement) { - std::list::iterator i = absl::c_max_element(sequence_); - ASSERT_TRUE(i != sequence_.end()); - EXPECT_EQ(*i, 3); -} - -TEST_F(NonMutatingTest, MaxElementWithPredicate) { - std::list::iterator i = - absl::c_max_element(sequence_, std::greater()); - ASSERT_TRUE(i != sequence_.end()); - EXPECT_EQ(*i, 1); -} - -TEST_F(NonMutatingTest, LexicographicalCompare) { - EXPECT_FALSE(absl::c_lexicographical_compare(sequence_, sequence_)); - - std::vector v; - v.push_back(1); - v.push_back(2); - v.push_back(4); - - EXPECT_TRUE(absl::c_lexicographical_compare(sequence_, v)); - EXPECT_TRUE(absl::c_lexicographical_compare(std::list(sequence_), v)); -} - -TEST_F(NonMutatingTest, LexicographicalCopmareWithPredicate) { - EXPECT_FALSE(absl::c_lexicographical_compare(sequence_, sequence_, - std::greater())); - - std::vector v; - v.push_back(1); - v.push_back(2); - v.push_back(4); - - EXPECT_TRUE( - absl::c_lexicographical_compare(v, sequence_, std::greater())); - EXPECT_TRUE(absl::c_lexicographical_compare( - std::vector(v), std::list(sequence_), std::greater())); -} - -TEST_F(NonMutatingTest, Includes) { - std::set s(vector_.begin(), vector_.end()); - s.insert(4); - EXPECT_TRUE(absl::c_includes(s, vector_)); -} - -TEST_F(NonMutatingTest, IncludesWithPredicate) { - std::vector v = {3, 2, 1}; - std::set> s(v.begin(), v.end()); - s.insert(4); - EXPECT_TRUE(absl::c_includes(s, v, std::greater())); -} - -class NumericMutatingTest : public testing::Test { - protected: - std::list list_ = {1, 2, 3}; - std::vector output_; -}; - -TEST_F(NumericMutatingTest, Iota) { - absl::c_iota(list_, 5); - std::list expected{5, 6, 7}; - EXPECT_EQ(list_, expected); -} - -TEST_F(NonMutatingTest, Accumulate) { - EXPECT_EQ(absl::c_accumulate(sequence_, 4), 1 + 2 + 3 + 4); -} - -TEST_F(NonMutatingTest, AccumulateWithBinaryOp) { - EXPECT_EQ(absl::c_accumulate(sequence_, 4, std::multiplies()), - 1 * 2 * 3 * 4); -} - -TEST_F(NonMutatingTest, AccumulateLvalueInit) { - int lvalue = 4; - EXPECT_EQ(absl::c_accumulate(sequence_, lvalue), 1 + 2 + 3 + 4); -} - -TEST_F(NonMutatingTest, AccumulateWithBinaryOpLvalueInit) { - int lvalue = 4; - EXPECT_EQ(absl::c_accumulate(sequence_, lvalue, std::multiplies()), - 1 * 2 * 3 * 4); -} - -TEST_F(NonMutatingTest, InnerProduct) { - EXPECT_EQ(absl::c_inner_product(sequence_, vector_, 1000), - 1000 + 1 * 1 + 2 * 2 + 3 * 3); -} - -TEST_F(NonMutatingTest, InnerProductWithBinaryOps) { - EXPECT_EQ(absl::c_inner_product(sequence_, vector_, 10, - std::multiplies(), std::plus()), - 10 * (1 + 1) * (2 + 2) * (3 + 3)); -} - -TEST_F(NonMutatingTest, InnerProductLvalueInit) { - int lvalue = 1000; - EXPECT_EQ(absl::c_inner_product(sequence_, vector_, lvalue), - 1000 + 1 * 1 + 2 * 2 + 3 * 3); -} - -TEST_F(NonMutatingTest, InnerProductWithBinaryOpsLvalueInit) { - int lvalue = 10; - EXPECT_EQ(absl::c_inner_product(sequence_, vector_, lvalue, - std::multiplies(), std::plus()), - 10 * (1 + 1) * (2 + 2) * (3 + 3)); -} - -TEST_F(NumericMutatingTest, AdjacentDifference) { - auto last = absl::c_adjacent_difference(list_, std::back_inserter(output_)); - *last = 1000; - std::vector expected{1, 2 - 1, 3 - 2, 1000}; - EXPECT_EQ(output_, expected); -} - -TEST_F(NumericMutatingTest, AdjacentDifferenceWithBinaryOp) { - auto last = absl::c_adjacent_difference(list_, std::back_inserter(output_), - std::multiplies()); - *last = 1000; - std::vector expected{1, 2 * 1, 3 * 2, 1000}; - EXPECT_EQ(output_, expected); -} - -TEST_F(NumericMutatingTest, PartialSum) { - auto last = absl::c_partial_sum(list_, std::back_inserter(output_)); - *last = 1000; - std::vector expected{1, 1 + 2, 1 + 2 + 3, 1000}; - EXPECT_EQ(output_, expected); -} - -TEST_F(NumericMutatingTest, PartialSumWithBinaryOp) { - auto last = absl::c_partial_sum(list_, std::back_inserter(output_), - std::multiplies()); - *last = 1000; - std::vector expected{1, 1 * 2, 1 * 2 * 3, 1000}; - EXPECT_EQ(output_, expected); -} - -TEST_F(NonMutatingTest, LinearSearch) { - EXPECT_TRUE(absl::c_linear_search(container_, 3)); - EXPECT_FALSE(absl::c_linear_search(container_, 4)); -} - -TEST_F(NonMutatingTest, AllOf) { - const std::vector& v = vector_; - EXPECT_FALSE(absl::c_all_of(v, [](int x) { return x > 1; })); - EXPECT_TRUE(absl::c_all_of(v, [](int x) { return x > 0; })); -} - -TEST_F(NonMutatingTest, AnyOf) { - const std::vector& v = vector_; - EXPECT_TRUE(absl::c_any_of(v, [](int x) { return x > 2; })); - EXPECT_FALSE(absl::c_any_of(v, [](int x) { return x > 5; })); -} - -TEST_F(NonMutatingTest, NoneOf) { - const std::vector& v = vector_; - EXPECT_FALSE(absl::c_none_of(v, [](int x) { return x > 2; })); - EXPECT_TRUE(absl::c_none_of(v, [](int x) { return x > 5; })); -} - -TEST_F(NonMutatingTest, MinMaxElementLess) { - std::pair::const_iterator, std::vector::const_iterator> - p = absl::c_minmax_element(vector_, std::less()); - EXPECT_TRUE(p.first == vector_.begin()); - EXPECT_TRUE(p.second == vector_.begin() + 2); -} - -TEST_F(NonMutatingTest, MinMaxElementGreater) { - std::pair::const_iterator, std::vector::const_iterator> - p = absl::c_minmax_element(vector_, std::greater()); - EXPECT_TRUE(p.first == vector_.begin() + 2); - EXPECT_TRUE(p.second == vector_.begin()); -} - -TEST_F(NonMutatingTest, MinMaxElementNoPredicate) { - std::pair::const_iterator, std::vector::const_iterator> - p = absl::c_minmax_element(vector_); - EXPECT_TRUE(p.first == vector_.begin()); - EXPECT_TRUE(p.second == vector_.begin() + 2); -} - -class SortingTest : public testing::Test { - protected: - std::list sorted_ = {1, 2, 3, 4}; - std::list unsorted_ = {2, 4, 1, 3}; - std::list reversed_ = {4, 3, 2, 1}; -}; - -TEST_F(SortingTest, IsSorted) { - EXPECT_TRUE(absl::c_is_sorted(sorted_)); - EXPECT_FALSE(absl::c_is_sorted(unsorted_)); - EXPECT_FALSE(absl::c_is_sorted(reversed_)); -} - -TEST_F(SortingTest, IsSortedWithPredicate) { - EXPECT_FALSE(absl::c_is_sorted(sorted_, std::greater())); - EXPECT_FALSE(absl::c_is_sorted(unsorted_, std::greater())); - EXPECT_TRUE(absl::c_is_sorted(reversed_, std::greater())); -} - -TEST_F(SortingTest, IsSortedUntil) { - EXPECT_EQ(1, *absl::c_is_sorted_until(unsorted_)); - EXPECT_EQ(4, *absl::c_is_sorted_until(unsorted_, std::greater())); -} - -TEST_F(SortingTest, NthElement) { - std::vector unsorted = {2, 4, 1, 3}; - absl::c_nth_element(unsorted, unsorted.begin() + 2); - EXPECT_THAT(unsorted, ElementsAre(Lt(3), Lt(3), 3, Gt(3))); - absl::c_nth_element(unsorted, unsorted.begin() + 2, std::greater()); - EXPECT_THAT(unsorted, ElementsAre(Gt(2), Gt(2), 2, Lt(2))); -} - -TEST(MutatingTest, IsPartitioned) { - EXPECT_TRUE( - absl::c_is_partitioned(std::vector{1, 3, 5, 2, 4, 6}, IsOdd)); - EXPECT_FALSE( - absl::c_is_partitioned(std::vector{1, 2, 3, 4, 5, 6}, IsOdd)); - EXPECT_FALSE( - absl::c_is_partitioned(std::vector{2, 4, 6, 1, 3, 5}, IsOdd)); -} - -TEST(MutatingTest, Partition) { - std::vector actual = {1, 2, 3, 4, 5}; - absl::c_partition(actual, IsOdd); - EXPECT_THAT(actual, Truly([](const std::vector& c) { - return absl::c_is_partitioned(c, IsOdd); - })); -} - -TEST(MutatingTest, StablePartition) { - std::vector actual = {1, 2, 3, 4, 5}; - absl::c_stable_partition(actual, IsOdd); - EXPECT_THAT(actual, ElementsAre(1, 3, 5, 2, 4)); -} - -TEST(MutatingTest, PartitionCopy) { - const std::vector initial = {1, 2, 3, 4, 5}; - std::vector odds, evens; - auto ends = absl::c_partition_copy(initial, back_inserter(odds), - back_inserter(evens), IsOdd); - *ends.first = 7; - *ends.second = 6; - EXPECT_THAT(odds, ElementsAre(1, 3, 5, 7)); - EXPECT_THAT(evens, ElementsAre(2, 4, 6)); -} - -TEST(MutatingTest, PartitionPoint) { - const std::vector initial = {1, 3, 5, 2, 4}; - auto middle = absl::c_partition_point(initial, IsOdd); - EXPECT_EQ(2, *middle); -} - -TEST(MutatingTest, CopyMiddle) { - const std::vector initial = {4, -1, -2, -3, 5}; - const std::list input = {1, 2, 3}; - const std::vector expected = {4, 1, 2, 3, 5}; - - std::list test_list(initial.begin(), initial.end()); - absl::c_copy(input, ++test_list.begin()); - EXPECT_EQ(std::list(expected.begin(), expected.end()), test_list); - - std::vector test_vector = initial; - absl::c_copy(input, test_vector.begin() + 1); - EXPECT_EQ(expected, test_vector); -} - -TEST(MutatingTest, CopyFrontInserter) { - const std::list initial = {4, 5}; - const std::list input = {1, 2, 3}; - const std::list expected = {3, 2, 1, 4, 5}; - - std::list test_list = initial; - absl::c_copy(input, std::front_inserter(test_list)); - EXPECT_EQ(expected, test_list); -} - -TEST(MutatingTest, CopyBackInserter) { - const std::vector initial = {4, 5}; - const std::list input = {1, 2, 3}; - const std::vector expected = {4, 5, 1, 2, 3}; - - std::list test_list(initial.begin(), initial.end()); - absl::c_copy(input, std::back_inserter(test_list)); - EXPECT_EQ(std::list(expected.begin(), expected.end()), test_list); - - std::vector test_vector = initial; - absl::c_copy(input, std::back_inserter(test_vector)); - EXPECT_EQ(expected, test_vector); -} - -TEST(MutatingTest, CopyN) { - const std::vector initial = {1, 2, 3, 4, 5}; - const std::vector expected = {1, 2}; - std::vector actual; - absl::c_copy_n(initial, 2, back_inserter(actual)); - EXPECT_EQ(expected, actual); -} - -TEST(MutatingTest, CopyIf) { - const std::list input = {1, 2, 3}; - std::vector output; - absl::c_copy_if(input, std::back_inserter(output), - [](int i) { return i != 2; }); - EXPECT_THAT(output, ElementsAre(1, 3)); -} - -TEST(MutatingTest, CopyBackward) { - std::vector actual = {1, 2, 3, 4, 5}; - std::vector expected = {1, 2, 1, 2, 3}; - absl::c_copy_backward(absl::MakeSpan(actual.data(), 3), actual.end()); - EXPECT_EQ(expected, actual); -} - -TEST(MutatingTest, Move) { - std::vector> src; - src.emplace_back(absl::make_unique(1)); - src.emplace_back(absl::make_unique(2)); - src.emplace_back(absl::make_unique(3)); - src.emplace_back(absl::make_unique(4)); - src.emplace_back(absl::make_unique(5)); - - std::vector> dest = {}; - absl::c_move(src, std::back_inserter(dest)); - EXPECT_THAT(src, Each(IsNull())); - EXPECT_THAT(dest, ElementsAre(Pointee(1), Pointee(2), Pointee(3), Pointee(4), - Pointee(5))); -} - -TEST(MutatingTest, MoveBackward) { - std::vector> actual; - actual.emplace_back(absl::make_unique(1)); - actual.emplace_back(absl::make_unique(2)); - actual.emplace_back(absl::make_unique(3)); - actual.emplace_back(absl::make_unique(4)); - actual.emplace_back(absl::make_unique(5)); - auto subrange = absl::MakeSpan(actual.data(), 3); - absl::c_move_backward(subrange, actual.end()); - EXPECT_THAT(actual, ElementsAre(IsNull(), IsNull(), Pointee(1), Pointee(2), - Pointee(3))); -} - -TEST(MutatingTest, MoveWithRvalue) { - auto MakeRValueSrc = [] { - std::vector> src; - src.emplace_back(absl::make_unique(1)); - src.emplace_back(absl::make_unique(2)); - src.emplace_back(absl::make_unique(3)); - return src; - }; - - std::vector> dest = MakeRValueSrc(); - absl::c_move(MakeRValueSrc(), std::back_inserter(dest)); - EXPECT_THAT(dest, ElementsAre(Pointee(1), Pointee(2), Pointee(3), Pointee(1), - Pointee(2), Pointee(3))); -} - -TEST(MutatingTest, SwapRanges) { - std::vector odds = {2, 4, 6}; - std::vector evens = {1, 3, 5}; - absl::c_swap_ranges(odds, evens); - EXPECT_THAT(odds, ElementsAre(1, 3, 5)); - EXPECT_THAT(evens, ElementsAre(2, 4, 6)); - - odds.pop_back(); - absl::c_swap_ranges(odds, evens); - EXPECT_THAT(odds, ElementsAre(2, 4)); - EXPECT_THAT(evens, ElementsAre(1, 3, 6)); - - absl::c_swap_ranges(evens, odds); - EXPECT_THAT(odds, ElementsAre(1, 3)); - EXPECT_THAT(evens, ElementsAre(2, 4, 6)); -} - -TEST_F(NonMutatingTest, Transform) { - std::vector x{0, 2, 4}, y, z; - auto end = absl::c_transform(x, back_inserter(y), std::negate()); - EXPECT_EQ(std::vector({0, -2, -4}), y); - *end = 7; - EXPECT_EQ(std::vector({0, -2, -4, 7}), y); - - y = {1, 3, 0}; - end = absl::c_transform(x, y, back_inserter(z), std::plus()); - EXPECT_EQ(std::vector({1, 5, 4}), z); - *end = 7; - EXPECT_EQ(std::vector({1, 5, 4, 7}), z); - - z.clear(); - y.pop_back(); - end = absl::c_transform(x, y, std::back_inserter(z), std::plus()); - EXPECT_EQ(std::vector({1, 5}), z); - *end = 7; - EXPECT_EQ(std::vector({1, 5, 7}), z); - - z.clear(); - std::swap(x, y); - end = absl::c_transform(x, y, std::back_inserter(z), std::plus()); - EXPECT_EQ(std::vector({1, 5}), z); - *end = 7; - EXPECT_EQ(std::vector({1, 5, 7}), z); -} - -TEST(MutatingTest, Replace) { - const std::vector initial = {1, 2, 3, 1, 4, 5}; - const std::vector expected = {4, 2, 3, 4, 4, 5}; - - std::vector test_vector = initial; - absl::c_replace(test_vector, 1, 4); - EXPECT_EQ(expected, test_vector); - - std::list test_list(initial.begin(), initial.end()); - absl::c_replace(test_list, 1, 4); - EXPECT_EQ(std::list(expected.begin(), expected.end()), test_list); -} - -TEST(MutatingTest, ReplaceIf) { - std::vector actual = {1, 2, 3, 4, 5}; - const std::vector expected = {0, 2, 0, 4, 0}; - - absl::c_replace_if(actual, IsOdd, 0); - EXPECT_EQ(expected, actual); -} - -TEST(MutatingTest, ReplaceCopy) { - const std::vector initial = {1, 2, 3, 1, 4, 5}; - const std::vector expected = {4, 2, 3, 4, 4, 5}; - - std::vector actual; - absl::c_replace_copy(initial, back_inserter(actual), 1, 4); - EXPECT_EQ(expected, actual); -} - -TEST(MutatingTest, Sort) { - std::vector test_vector = {2, 3, 1, 4}; - absl::c_sort(test_vector); - EXPECT_THAT(test_vector, ElementsAre(1, 2, 3, 4)); -} - -TEST(MutatingTest, SortWithPredicate) { - std::vector test_vector = {2, 3, 1, 4}; - absl::c_sort(test_vector, std::greater()); - EXPECT_THAT(test_vector, ElementsAre(4, 3, 2, 1)); -} - -// For absl::c_stable_sort tests. Needs an operator< that does not cover all -// fields so that the test can check the sort preserves order of equal elements. -struct Element { - int key; - int value; - friend bool operator<(const Element& e1, const Element& e2) { - return e1.key < e2.key; - } - // Make gmock print useful diagnostics. - friend std::ostream& operator<<(std::ostream& o, const Element& e) { - return o << "{" << e.key << ", " << e.value << "}"; - } -}; - -MATCHER_P2(IsElement, key, value, "") { - return arg.key == key && arg.value == value; -} - -TEST(MutatingTest, StableSort) { - std::vector test_vector = {{1, 1}, {2, 1}, {2, 0}, {1, 0}, {2, 2}}; - absl::c_stable_sort(test_vector); - EXPECT_THAT(test_vector, - ElementsAre(IsElement(1, 1), IsElement(1, 0), IsElement(2, 1), - IsElement(2, 0), IsElement(2, 2))); -} - -TEST(MutatingTest, StableSortWithPredicate) { - std::vector test_vector = {{1, 1}, {2, 1}, {2, 0}, {1, 0}, {2, 2}}; - absl::c_stable_sort(test_vector, [](const Element& e1, const Element& e2) { - return e2 < e1; - }); - EXPECT_THAT(test_vector, - ElementsAre(IsElement(2, 1), IsElement(2, 0), IsElement(2, 2), - IsElement(1, 1), IsElement(1, 0))); -} - -TEST(MutatingTest, ReplaceCopyIf) { - const std::vector initial = {1, 2, 3, 4, 5}; - const std::vector expected = {0, 2, 0, 4, 0}; - - std::vector actual; - absl::c_replace_copy_if(initial, back_inserter(actual), IsOdd, 0); - EXPECT_EQ(expected, actual); -} - -TEST(MutatingTest, Fill) { - std::vector actual(5); - absl::c_fill(actual, 1); - EXPECT_THAT(actual, ElementsAre(1, 1, 1, 1, 1)); -} - -TEST(MutatingTest, FillN) { - std::vector actual(5, 0); - absl::c_fill_n(actual, 2, 1); - EXPECT_THAT(actual, ElementsAre(1, 1, 0, 0, 0)); -} - -TEST(MutatingTest, Generate) { - std::vector actual(5); - int x = 0; - absl::c_generate(actual, [&x]() { return ++x; }); - EXPECT_THAT(actual, ElementsAre(1, 2, 3, 4, 5)); -} - -TEST(MutatingTest, GenerateN) { - std::vector actual(5, 0); - int x = 0; - absl::c_generate_n(actual, 3, [&x]() { return ++x; }); - EXPECT_THAT(actual, ElementsAre(1, 2, 3, 0, 0)); -} - -TEST(MutatingTest, RemoveCopy) { - std::vector actual; - absl::c_remove_copy(std::vector{1, 2, 3}, back_inserter(actual), 2); - EXPECT_THAT(actual, ElementsAre(1, 3)); -} - -TEST(MutatingTest, RemoveCopyIf) { - std::vector actual; - absl::c_remove_copy_if(std::vector{1, 2, 3}, back_inserter(actual), - IsOdd); - EXPECT_THAT(actual, ElementsAre(2)); -} - -TEST(MutatingTest, UniqueCopy) { - std::vector actual; - absl::c_unique_copy(std::vector{1, 2, 2, 2, 3, 3, 2}, - back_inserter(actual)); - EXPECT_THAT(actual, ElementsAre(1, 2, 3, 2)); -} - -TEST(MutatingTest, UniqueCopyWithPredicate) { - std::vector actual; - absl::c_unique_copy(std::vector{1, 2, 3, -1, -2, -3, 1}, - back_inserter(actual), - [](int x, int y) { return (x < 0) == (y < 0); }); - EXPECT_THAT(actual, ElementsAre(1, -1, 1)); -} - -TEST(MutatingTest, Reverse) { - std::vector test_vector = {1, 2, 3, 4}; - absl::c_reverse(test_vector); - EXPECT_THAT(test_vector, ElementsAre(4, 3, 2, 1)); - - std::list test_list = {1, 2, 3, 4}; - absl::c_reverse(test_list); - EXPECT_THAT(test_list, ElementsAre(4, 3, 2, 1)); -} - -TEST(MutatingTest, ReverseCopy) { - std::vector actual; - absl::c_reverse_copy(std::vector{1, 2, 3, 4}, back_inserter(actual)); - EXPECT_THAT(actual, ElementsAre(4, 3, 2, 1)); -} - -TEST(MutatingTest, Rotate) { - std::vector actual = {1, 2, 3, 4}; - auto it = absl::c_rotate(actual, actual.begin() + 2); - EXPECT_THAT(actual, testing::ElementsAreArray({3, 4, 1, 2})); - EXPECT_EQ(*it, 1); -} - -TEST(MutatingTest, RotateCopy) { - std::vector initial = {1, 2, 3, 4}; - std::vector actual; - auto end = - absl::c_rotate_copy(initial, initial.begin() + 2, back_inserter(actual)); - *end = 5; - EXPECT_THAT(actual, ElementsAre(3, 4, 1, 2, 5)); -} - -TEST(MutatingTest, Shuffle) { - std::vector actual = {1, 2, 3, 4, 5}; - absl::c_shuffle(actual, std::random_device()); - EXPECT_THAT(actual, UnorderedElementsAre(1, 2, 3, 4, 5)); -} - -TEST(MutatingTest, PartialSort) { - std::vector sequence{5, 3, 42, 0}; - absl::c_partial_sort(sequence, sequence.begin() + 2); - EXPECT_THAT(absl::MakeSpan(sequence.data(), 2), ElementsAre(0, 3)); - absl::c_partial_sort(sequence, sequence.begin() + 2, std::greater()); - EXPECT_THAT(absl::MakeSpan(sequence.data(), 2), ElementsAre(42, 5)); -} - -TEST(MutatingTest, PartialSortCopy) { - const std::vector initial = {5, 3, 42, 0}; - std::vector actual(2); - absl::c_partial_sort_copy(initial, actual); - EXPECT_THAT(actual, ElementsAre(0, 3)); - absl::c_partial_sort_copy(initial, actual, std::greater()); - EXPECT_THAT(actual, ElementsAre(42, 5)); -} - -TEST(MutatingTest, Merge) { - std::vector actual; - absl::c_merge(std::vector{1, 3, 5}, std::vector{2, 4}, - back_inserter(actual)); - EXPECT_THAT(actual, ElementsAre(1, 2, 3, 4, 5)); -} - -TEST(MutatingTest, MergeWithComparator) { - std::vector actual; - absl::c_merge(std::vector{5, 3, 1}, std::vector{4, 2}, - back_inserter(actual), std::greater()); - EXPECT_THAT(actual, ElementsAre(5, 4, 3, 2, 1)); -} - -TEST(MutatingTest, InplaceMerge) { - std::vector actual = {1, 3, 5, 2, 4}; - absl::c_inplace_merge(actual, actual.begin() + 3); - EXPECT_THAT(actual, ElementsAre(1, 2, 3, 4, 5)); -} - -TEST(MutatingTest, InplaceMergeWithComparator) { - std::vector actual = {5, 3, 1, 4, 2}; - absl::c_inplace_merge(actual, actual.begin() + 3, std::greater()); - EXPECT_THAT(actual, ElementsAre(5, 4, 3, 2, 1)); -} - -class SetOperationsTest : public testing::Test { - protected: - std::vector a_ = {1, 2, 3}; - std::vector b_ = {1, 3, 5}; - - std::vector a_reversed_ = {3, 2, 1}; - std::vector b_reversed_ = {5, 3, 1}; -}; - -TEST_F(SetOperationsTest, SetUnion) { - std::vector actual; - absl::c_set_union(a_, b_, back_inserter(actual)); - EXPECT_THAT(actual, ElementsAre(1, 2, 3, 5)); -} - -TEST_F(SetOperationsTest, SetUnionWithComparator) { - std::vector actual; - absl::c_set_union(a_reversed_, b_reversed_, back_inserter(actual), - std::greater()); - EXPECT_THAT(actual, ElementsAre(5, 3, 2, 1)); -} - -TEST_F(SetOperationsTest, SetIntersection) { - std::vector actual; - absl::c_set_intersection(a_, b_, back_inserter(actual)); - EXPECT_THAT(actual, ElementsAre(1, 3)); -} - -TEST_F(SetOperationsTest, SetIntersectionWithComparator) { - std::vector actual; - absl::c_set_intersection(a_reversed_, b_reversed_, back_inserter(actual), - std::greater()); - EXPECT_THAT(actual, ElementsAre(3, 1)); -} - -TEST_F(SetOperationsTest, SetDifference) { - std::vector actual; - absl::c_set_difference(a_, b_, back_inserter(actual)); - EXPECT_THAT(actual, ElementsAre(2)); -} - -TEST_F(SetOperationsTest, SetDifferenceWithComparator) { - std::vector actual; - absl::c_set_difference(a_reversed_, b_reversed_, back_inserter(actual), - std::greater()); - EXPECT_THAT(actual, ElementsAre(2)); -} - -TEST_F(SetOperationsTest, SetSymmetricDifference) { - std::vector actual; - absl::c_set_symmetric_difference(a_, b_, back_inserter(actual)); - EXPECT_THAT(actual, ElementsAre(2, 5)); -} - -TEST_F(SetOperationsTest, SetSymmetricDifferenceWithComparator) { - std::vector actual; - absl::c_set_symmetric_difference(a_reversed_, b_reversed_, - back_inserter(actual), std::greater()); - EXPECT_THAT(actual, ElementsAre(5, 2)); -} - -TEST(HeapOperationsTest, WithoutComparator) { - std::vector heap = {1, 2, 3}; - EXPECT_FALSE(absl::c_is_heap(heap)); - absl::c_make_heap(heap); - EXPECT_TRUE(absl::c_is_heap(heap)); - heap.push_back(4); - EXPECT_EQ(3, absl::c_is_heap_until(heap) - heap.begin()); - absl::c_push_heap(heap); - EXPECT_EQ(4, heap[0]); - absl::c_pop_heap(heap); - EXPECT_EQ(4, heap[3]); - absl::c_make_heap(heap); - absl::c_sort_heap(heap); - EXPECT_THAT(heap, ElementsAre(1, 2, 3, 4)); - EXPECT_FALSE(absl::c_is_heap(heap)); -} - -TEST(HeapOperationsTest, WithComparator) { - using greater = std::greater; - std::vector heap = {3, 2, 1}; - EXPECT_FALSE(absl::c_is_heap(heap, greater())); - absl::c_make_heap(heap, greater()); - EXPECT_TRUE(absl::c_is_heap(heap, greater())); - heap.push_back(0); - EXPECT_EQ(3, absl::c_is_heap_until(heap, greater()) - heap.begin()); - absl::c_push_heap(heap, greater()); - EXPECT_EQ(0, heap[0]); - absl::c_pop_heap(heap, greater()); - EXPECT_EQ(0, heap[3]); - absl::c_make_heap(heap, greater()); - absl::c_sort_heap(heap, greater()); - EXPECT_THAT(heap, ElementsAre(3, 2, 1, 0)); - EXPECT_FALSE(absl::c_is_heap(heap, greater())); -} - -TEST(MutatingTest, PermutationOperations) { - std::vector initial = {1, 2, 3, 4}; - std::vector permuted = initial; - - absl::c_next_permutation(permuted); - EXPECT_TRUE(absl::c_is_permutation(initial, permuted)); - EXPECT_TRUE(absl::c_is_permutation(initial, permuted, std::equal_to())); - - std::vector permuted2 = initial; - absl::c_prev_permutation(permuted2, std::greater()); - EXPECT_EQ(permuted, permuted2); - - absl::c_prev_permutation(permuted); - EXPECT_EQ(initial, permuted); -} - -} // namespace diff --git a/src/third_party/abseil-cpp/absl/algorithm/equal_benchmark.cc b/src/third_party/abseil-cpp/absl/algorithm/equal_benchmark.cc deleted file mode 100644 index 948cd65c54..0000000000 --- a/src/third_party/abseil-cpp/absl/algorithm/equal_benchmark.cc +++ /dev/null @@ -1,126 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include -#include - -#include "absl/algorithm/algorithm.h" -#include "benchmark/benchmark.h" - -namespace { - -// The range of sequence sizes to benchmark. -constexpr int kMinBenchmarkSize = 1024; -constexpr int kMaxBenchmarkSize = 8 * 1024 * 1024; - -// A user-defined type for use in equality benchmarks. Note that we expect -// std::memcmp to win for this type: libstdc++'s std::equal only defers to -// memcmp for integral types. This is because it is not straightforward to -// guarantee that std::memcmp would produce a result "as-if" compared by -// operator== for other types (example gotchas: NaN floats, structs with -// padding). -struct EightBits { - explicit EightBits(int /* unused */) : data(0) {} - bool operator==(const EightBits& rhs) const { return data == rhs.data; } - uint8_t data; -}; - -template -void BM_absl_equal_benchmark(benchmark::State& state) { - std::vector xs(state.range(0), T(0)); - std::vector ys = xs; - while (state.KeepRunning()) { - const bool same = absl::equal(xs.begin(), xs.end(), ys.begin(), ys.end()); - benchmark::DoNotOptimize(same); - } -} - -template -void BM_std_equal_benchmark(benchmark::State& state) { - std::vector xs(state.range(0), T(0)); - std::vector ys = xs; - while (state.KeepRunning()) { - const bool same = std::equal(xs.begin(), xs.end(), ys.begin()); - benchmark::DoNotOptimize(same); - } -} - -template -void BM_memcmp_benchmark(benchmark::State& state) { - std::vector xs(state.range(0), T(0)); - std::vector ys = xs; - while (state.KeepRunning()) { - const bool same = - std::memcmp(xs.data(), ys.data(), xs.size() * sizeof(T)) == 0; - benchmark::DoNotOptimize(same); - } -} - -// The expectation is that the compiler should be able to elide the equality -// comparison altogether for sufficiently simple types. -template -void BM_absl_equal_self_benchmark(benchmark::State& state) { - std::vector xs(state.range(0), T(0)); - while (state.KeepRunning()) { - const bool same = absl::equal(xs.begin(), xs.end(), xs.begin(), xs.end()); - benchmark::DoNotOptimize(same); - } -} - -BENCHMARK_TEMPLATE(BM_absl_equal_benchmark, uint8_t) - ->Range(kMinBenchmarkSize, kMaxBenchmarkSize); -BENCHMARK_TEMPLATE(BM_std_equal_benchmark, uint8_t) - ->Range(kMinBenchmarkSize, kMaxBenchmarkSize); -BENCHMARK_TEMPLATE(BM_memcmp_benchmark, uint8_t) - ->Range(kMinBenchmarkSize, kMaxBenchmarkSize); -BENCHMARK_TEMPLATE(BM_absl_equal_self_benchmark, uint8_t) - ->Range(kMinBenchmarkSize, kMaxBenchmarkSize); - -BENCHMARK_TEMPLATE(BM_absl_equal_benchmark, uint16_t) - ->Range(kMinBenchmarkSize, kMaxBenchmarkSize); -BENCHMARK_TEMPLATE(BM_std_equal_benchmark, uint16_t) - ->Range(kMinBenchmarkSize, kMaxBenchmarkSize); -BENCHMARK_TEMPLATE(BM_memcmp_benchmark, uint16_t) - ->Range(kMinBenchmarkSize, kMaxBenchmarkSize); -BENCHMARK_TEMPLATE(BM_absl_equal_self_benchmark, uint16_t) - ->Range(kMinBenchmarkSize, kMaxBenchmarkSize); - -BENCHMARK_TEMPLATE(BM_absl_equal_benchmark, uint32_t) - ->Range(kMinBenchmarkSize, kMaxBenchmarkSize); -BENCHMARK_TEMPLATE(BM_std_equal_benchmark, uint32_t) - ->Range(kMinBenchmarkSize, kMaxBenchmarkSize); -BENCHMARK_TEMPLATE(BM_memcmp_benchmark, uint32_t) - ->Range(kMinBenchmarkSize, kMaxBenchmarkSize); -BENCHMARK_TEMPLATE(BM_absl_equal_self_benchmark, uint32_t) - ->Range(kMinBenchmarkSize, kMaxBenchmarkSize); - -BENCHMARK_TEMPLATE(BM_absl_equal_benchmark, uint64_t) - ->Range(kMinBenchmarkSize, kMaxBenchmarkSize); -BENCHMARK_TEMPLATE(BM_std_equal_benchmark, uint64_t) - ->Range(kMinBenchmarkSize, kMaxBenchmarkSize); -BENCHMARK_TEMPLATE(BM_memcmp_benchmark, uint64_t) - ->Range(kMinBenchmarkSize, kMaxBenchmarkSize); -BENCHMARK_TEMPLATE(BM_absl_equal_self_benchmark, uint64_t) - ->Range(kMinBenchmarkSize, kMaxBenchmarkSize); - -BENCHMARK_TEMPLATE(BM_absl_equal_benchmark, EightBits) - ->Range(kMinBenchmarkSize, kMaxBenchmarkSize); -BENCHMARK_TEMPLATE(BM_std_equal_benchmark, EightBits) - ->Range(kMinBenchmarkSize, kMaxBenchmarkSize); -BENCHMARK_TEMPLATE(BM_memcmp_benchmark, EightBits) - ->Range(kMinBenchmarkSize, kMaxBenchmarkSize); -BENCHMARK_TEMPLATE(BM_absl_equal_self_benchmark, EightBits) - ->Range(kMinBenchmarkSize, kMaxBenchmarkSize); - -} // namespace diff --git a/src/third_party/abseil-cpp/absl/base/BUILD.bazel b/src/third_party/abseil-cpp/absl/base/BUILD.bazel deleted file mode 100644 index ded26d6ab6..0000000000 --- a/src/third_party/abseil-cpp/absl/base/BUILD.bazel +++ /dev/null @@ -1,783 +0,0 @@ -# -# Copyright 2017 The Abseil Authors. -# -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at -# -# https://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. -# - -load( - "//absl:copts/configure_copts.bzl", - "ABSL_DEFAULT_COPTS", - "ABSL_DEFAULT_LINKOPTS", - "ABSL_TEST_COPTS", -) - -package(default_visibility = ["//visibility:public"]) - -licenses(["notice"]) - -cc_library( - name = "atomic_hook", - hdrs = ["internal/atomic_hook.h"], - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - visibility = [ - "//absl:__subpackages__", - ], - deps = [ - ":config", - ":core_headers", - ], -) - -cc_library( - name = "errno_saver", - hdrs = ["internal/errno_saver.h"], - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - visibility = [ - "//absl:__subpackages__", - ], - deps = [":config"], -) - -cc_library( - name = "log_severity", - srcs = ["log_severity.cc"], - hdrs = ["log_severity.h"], - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":config", - ":core_headers", - ], -) - -cc_library( - name = "raw_logging_internal", - srcs = ["internal/raw_logging.cc"], - hdrs = ["internal/raw_logging.h"], - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - visibility = [ - "//absl:__subpackages__", - ], - deps = [ - ":atomic_hook", - ":config", - ":core_headers", - ":errno_saver", - ":log_severity", - ], -) - -cc_library( - name = "spinlock_wait", - srcs = [ - "internal/spinlock_akaros.inc", - "internal/spinlock_linux.inc", - "internal/spinlock_posix.inc", - "internal/spinlock_wait.cc", - "internal/spinlock_win32.inc", - ], - hdrs = ["internal/spinlock_wait.h"], - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - visibility = [ - "//absl/base:__pkg__", - ], - deps = [ - ":base_internal", - ":core_headers", - ":errno_saver", - ], -) - -cc_library( - name = "config", - hdrs = [ - "config.h", - "options.h", - "policy_checks.h", - ], - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, -) - -cc_library( - name = "cycleclock_internal", - hdrs = [ - "internal/cycleclock_config.h", - "internal/unscaledcycleclock_config.h", - ], - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - visibility = [ - "//absl:__subpackages__", - ], - deps = [ - ":base_internal", - ":config", - ], -) - -cc_library( - name = "dynamic_annotations", - srcs = [ - "internal/dynamic_annotations.h", - ], - hdrs = [ - "dynamic_annotations.h", - ], - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":config", - ":core_headers", - ], -) - -cc_library( - name = "core_headers", - srcs = [ - "internal/thread_annotations.h", - ], - hdrs = [ - "attributes.h", - "const_init.h", - "macros.h", - "optimization.h", - "port.h", - "thread_annotations.h", - ], - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":config", - ], -) - -cc_library( - name = "malloc_internal", - srcs = [ - "internal/low_level_alloc.cc", - ], - hdrs = [ - "internal/direct_mmap.h", - "internal/low_level_alloc.h", - ], - copts = ABSL_DEFAULT_COPTS + select({ - "//conditions:default": [], - }), - linkopts = select({ - "//absl:msvc_compiler": [], - "//absl:clang-cl_compiler": [], - "//absl:wasm": [], - "//conditions:default": ["-pthread"], - }) + ABSL_DEFAULT_LINKOPTS, - visibility = [ - "//visibility:public", - ], - deps = [ - ":base", - ":base_internal", - ":config", - ":core_headers", - ":dynamic_annotations", - ":raw_logging_internal", - ], -) - -cc_library( - name = "base_internal", - hdrs = [ - "internal/hide_ptr.h", - "internal/identity.h", - "internal/inline_variable.h", - "internal/invoke.h", - "internal/scheduling_mode.h", - ], - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - visibility = [ - "//absl:__subpackages__", - ], - deps = [ - ":config", - "//absl/meta:type_traits", - ], -) - -cc_library( - name = "base", - srcs = [ - "internal/cycleclock.cc", - "internal/spinlock.cc", - "internal/sysinfo.cc", - "internal/thread_identity.cc", - "internal/unscaledcycleclock.cc", - ], - hdrs = [ - "call_once.h", - "casts.h", - "internal/cycleclock.h", - "internal/low_level_scheduling.h", - "internal/per_thread_tls.h", - "internal/spinlock.h", - "internal/sysinfo.h", - "internal/thread_identity.h", - "internal/tsan_mutex_interface.h", - "internal/unscaledcycleclock.h", - ], - copts = ABSL_DEFAULT_COPTS, - linkopts = select({ - "//absl:msvc_compiler": [ - "-DEFAULTLIB:advapi32.lib", - ], - "//absl:clang-cl_compiler": [ - "-DEFAULTLIB:advapi32.lib", - ], - "//absl:wasm": [], - "//conditions:default": ["-pthread"], - }) + ABSL_DEFAULT_LINKOPTS, - deps = [ - ":atomic_hook", - ":base_internal", - ":config", - ":core_headers", - ":cycleclock_internal", - ":dynamic_annotations", - ":log_severity", - ":raw_logging_internal", - ":spinlock_wait", - "//absl/meta:type_traits", - ], -) - -cc_library( - name = "atomic_hook_test_helper", - testonly = 1, - srcs = ["internal/atomic_hook_test_helper.cc"], - hdrs = ["internal/atomic_hook_test_helper.h"], - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":atomic_hook", - ":core_headers", - ], -) - -cc_test( - name = "atomic_hook_test", - size = "small", - srcs = ["internal/atomic_hook_test.cc"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":atomic_hook", - ":atomic_hook_test_helper", - ":core_headers", - "@com_google_googletest//:gtest_main", - ], -) - -cc_test( - name = "bit_cast_test", - size = "small", - srcs = [ - "bit_cast_test.cc", - ], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":base", - ":core_headers", - "@com_google_googletest//:gtest_main", - ], -) - -cc_library( - name = "throw_delegate", - srcs = ["internal/throw_delegate.cc"], - hdrs = ["internal/throw_delegate.h"], - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - visibility = [ - "//absl:__subpackages__", - ], - deps = [ - ":config", - ":raw_logging_internal", - ], -) - -cc_test( - name = "throw_delegate_test", - srcs = ["throw_delegate_test.cc"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":config", - ":throw_delegate", - "@com_google_googletest//:gtest_main", - ], -) - -cc_test( - name = "errno_saver_test", - size = "small", - srcs = ["internal/errno_saver_test.cc"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":errno_saver", - ":strerror", - "@com_google_googletest//:gtest_main", - ], -) - -cc_library( - name = "exception_testing", - testonly = 1, - hdrs = ["internal/exception_testing.h"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - visibility = [ - "//absl:__subpackages__", - ], - deps = [ - ":config", - "@com_google_googletest//:gtest", - ], -) - -cc_library( - name = "pretty_function", - hdrs = ["internal/pretty_function.h"], - linkopts = ABSL_DEFAULT_LINKOPTS, - visibility = ["//absl:__subpackages__"], -) - -cc_library( - name = "exception_safety_testing", - testonly = 1, - srcs = ["internal/exception_safety_testing.cc"], - hdrs = ["internal/exception_safety_testing.h"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":config", - ":pretty_function", - "//absl/memory", - "//absl/meta:type_traits", - "//absl/strings", - "//absl/utility", - "@com_google_googletest//:gtest", - ], -) - -cc_test( - name = "exception_safety_testing_test", - srcs = ["exception_safety_testing_test.cc"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":exception_safety_testing", - "//absl/memory", - "@com_google_googletest//:gtest_main", - ], -) - -cc_test( - name = "inline_variable_test", - size = "small", - srcs = [ - "inline_variable_test.cc", - "inline_variable_test_a.cc", - "inline_variable_test_b.cc", - "internal/inline_variable_testing.h", - ], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":base_internal", - "@com_google_googletest//:gtest_main", - ], -) - -cc_test( - name = "invoke_test", - size = "small", - srcs = ["invoke_test.cc"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":base_internal", - "//absl/memory", - "//absl/strings", - "@com_google_googletest//:gtest_main", - ], -) - -# Common test library made available for use in non-absl code that overrides -# AbslInternalSpinLockDelay and AbslInternalSpinLockWake. -cc_library( - name = "spinlock_test_common", - testonly = 1, - srcs = ["spinlock_test_common.cc"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":base", - ":base_internal", - ":config", - ":core_headers", - "//absl/synchronization", - "@com_google_googletest//:gtest", - ], - alwayslink = 1, -) - -cc_test( - name = "spinlock_test", - size = "medium", - srcs = ["spinlock_test_common.cc"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - tags = [ - "no_test_wasm", - ], - deps = [ - ":base", - ":base_internal", - ":config", - ":core_headers", - "//absl/synchronization", - "@com_google_googletest//:gtest_main", - ], -) - -cc_library( - name = "spinlock_benchmark_common", - testonly = 1, - srcs = ["internal/spinlock_benchmark.cc"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - visibility = [ - "//absl/base:__pkg__", - ], - deps = [ - ":base", - ":base_internal", - ":raw_logging_internal", - "//absl/synchronization", - "@com_github_google_benchmark//:benchmark_main", - ], - alwayslink = 1, -) - -cc_binary( - name = "spinlock_benchmark", - testonly = 1, - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - tags = ["benchmark"], - visibility = ["//visibility:private"], - deps = [ - ":spinlock_benchmark_common", - ], -) - -cc_library( - name = "endian", - hdrs = [ - "internal/endian.h", - "internal/unaligned_access.h", - ], - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":base", - ":config", - ":core_headers", - ], -) - -cc_test( - name = "endian_test", - srcs = ["internal/endian_test.cc"], - copts = ABSL_TEST_COPTS, - deps = [ - ":config", - ":endian", - "@com_google_googletest//:gtest_main", - ], -) - -cc_test( - name = "config_test", - srcs = ["config_test.cc"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":config", - "//absl/synchronization:thread_pool", - "@com_google_googletest//:gtest_main", - ], -) - -cc_test( - name = "call_once_test", - srcs = ["call_once_test.cc"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":base", - ":core_headers", - "//absl/synchronization", - "@com_google_googletest//:gtest_main", - ], -) - -cc_test( - name = "raw_logging_test", - srcs = ["raw_logging_test.cc"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":raw_logging_internal", - "//absl/strings", - "@com_google_googletest//:gtest_main", - ], -) - -cc_test( - name = "sysinfo_test", - size = "small", - srcs = ["internal/sysinfo_test.cc"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":base", - "//absl/synchronization", - "@com_google_googletest//:gtest_main", - ], -) - -cc_test( - name = "low_level_alloc_test", - size = "medium", - srcs = ["internal/low_level_alloc_test.cc"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - tags = [ - "no_test_ios_x86_64", - "no_test_wasm", - ], - deps = [ - ":malloc_internal", - "//absl/container:node_hash_map", - ], -) - -cc_test( - name = "thread_identity_test", - size = "small", - srcs = ["internal/thread_identity_test.cc"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - tags = [ - "no_test_wasm", - ], - deps = [ - ":base", - ":core_headers", - "//absl/synchronization", - "@com_google_googletest//:gtest_main", - ], -) - -cc_test( - name = "thread_identity_benchmark", - srcs = ["internal/thread_identity_benchmark.cc"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - tags = ["benchmark"], - visibility = ["//visibility:private"], - deps = [ - ":base", - "//absl/synchronization", - "@com_github_google_benchmark//:benchmark_main", - ], -) - -cc_library( - name = "scoped_set_env", - testonly = 1, - srcs = ["internal/scoped_set_env.cc"], - hdrs = ["internal/scoped_set_env.h"], - linkopts = ABSL_DEFAULT_LINKOPTS, - visibility = [ - "//absl:__subpackages__", - ], - deps = [ - ":config", - ":raw_logging_internal", - ], -) - -cc_test( - name = "scoped_set_env_test", - size = "small", - srcs = ["internal/scoped_set_env_test.cc"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":scoped_set_env", - "@com_google_googletest//:gtest_main", - ], -) - -cc_test( - name = "log_severity_test", - size = "small", - srcs = ["log_severity_test.cc"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":log_severity", - "//absl/flags:flag_internal", - "//absl/flags:marshalling", - "//absl/strings", - "@com_google_googletest//:gtest_main", - ], -) - -cc_library( - name = "strerror", - srcs = ["internal/strerror.cc"], - hdrs = ["internal/strerror.h"], - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - visibility = [ - "//absl:__subpackages__", - ], - deps = [ - ":config", - ":core_headers", - ":errno_saver", - ], -) - -cc_test( - name = "strerror_test", - size = "small", - srcs = ["internal/strerror_test.cc"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":strerror", - "//absl/strings", - "@com_google_googletest//:gtest_main", - ], -) - -cc_binary( - name = "strerror_benchmark", - testonly = 1, - srcs = ["internal/strerror_benchmark.cc"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - tags = ["benchmark"], - visibility = ["//visibility:private"], - deps = [ - ":strerror", - "@com_github_google_benchmark//:benchmark_main", - ], -) - -cc_library( - name = "fast_type_id", - hdrs = ["internal/fast_type_id.h"], - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - visibility = [ - "//absl:__subpackages__", - ], - deps = [ - ":config", - ], -) - -cc_test( - name = "fast_type_id_test", - size = "small", - srcs = ["internal/fast_type_id_test.cc"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":fast_type_id", - "@com_google_googletest//:gtest_main", - ], -) - -cc_library( - name = "prefetch", - hdrs = ["internal/prefetch.h"], - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - visibility = [ - "//absl:__subpackages__", - ], - deps = [ - ":config", - ], -) - -cc_test( - name = "prefetch_test", - size = "small", - srcs = ["internal/prefetch_test.cc"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":prefetch", - "@com_google_googletest//:gtest_main", - ], -) - -cc_test( - name = "unique_small_name_test", - size = "small", - srcs = ["internal/unique_small_name_test.cc"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - linkstatic = 1, - deps = [ - ":core_headers", - "//absl/strings", - "@com_google_googletest//:gtest_main", - ], -) - -cc_test( - name = "optimization_test", - size = "small", - srcs = ["optimization_test.cc"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":core_headers", - "//absl/types:optional", - "@com_google_googletest//:gtest_main", - ], -) diff --git a/src/third_party/abseil-cpp/absl/base/CMakeLists.txt b/src/third_party/abseil-cpp/absl/base/CMakeLists.txt deleted file mode 100644 index 26e2b48a87..0000000000 --- a/src/third_party/abseil-cpp/absl/base/CMakeLists.txt +++ /dev/null @@ -1,685 +0,0 @@ -# -# Copyright 2017 The Abseil Authors. -# -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at -# -# https://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. -# - -find_library(LIBRT rt) - -# Internal-only target, do not depend on directly. -absl_cc_library( - NAME - atomic_hook - HDRS - "internal/atomic_hook.h" - DEPS - absl::config - absl::core_headers - COPTS - ${ABSL_DEFAULT_COPTS} -) - -# Internal-only target, do not depend on directly. -absl_cc_library( - NAME - errno_saver - HDRS - "internal/errno_saver.h" - DEPS - absl::config - COPTS - ${ABSL_DEFAULT_COPTS} -) - -absl_cc_library( - NAME - log_severity - HDRS - "log_severity.h" - SRCS - "log_severity.cc" - DEPS - absl::core_headers - COPTS - ${ABSL_DEFAULT_COPTS} -) - -# Internal-only target, do not depend on directly. -absl_cc_library( - NAME - raw_logging_internal - HDRS - "internal/raw_logging.h" - SRCS - "internal/raw_logging.cc" - DEPS - absl::atomic_hook - absl::config - absl::core_headers - absl::errno_saver - absl::log_severity - COPTS - ${ABSL_DEFAULT_COPTS} -) - -# Internal-only target, do not depend on directly. -absl_cc_library( - NAME - spinlock_wait - HDRS - "internal/spinlock_wait.h" - SRCS - "internal/spinlock_akaros.inc" - "internal/spinlock_linux.inc" - "internal/spinlock_posix.inc" - "internal/spinlock_wait.cc" - "internal/spinlock_win32.inc" - COPTS - ${ABSL_DEFAULT_COPTS} - DEPS - absl::base_internal - absl::core_headers - absl::errno_saver -) - -absl_cc_library( - NAME - config - HDRS - "config.h" - "options.h" - "policy_checks.h" - COPTS - ${ABSL_DEFAULT_COPTS} - PUBLIC -) - -absl_cc_library( - NAME - dynamic_annotations - HDRS - "dynamic_annotations.h" - SRCS - "internal/dynamic_annotations.h" - COPTS - ${ABSL_DEFAULT_COPTS} - DEPS - absl::config - PUBLIC -) - -absl_cc_library( - NAME - core_headers - HDRS - "attributes.h" - "const_init.h" - "macros.h" - "optimization.h" - "port.h" - "thread_annotations.h" - "internal/thread_annotations.h" - COPTS - ${ABSL_DEFAULT_COPTS} - DEPS - absl::config - PUBLIC -) - -# Internal-only target, do not depend on directly. -absl_cc_library( - NAME - malloc_internal - HDRS - "internal/direct_mmap.h" - "internal/low_level_alloc.h" - SRCS - "internal/low_level_alloc.cc" - COPTS - ${ABSL_DEFAULT_COPTS} - DEPS - absl::base - absl::base_internal - absl::config - absl::core_headers - absl::dynamic_annotations - absl::raw_logging_internal - Threads::Threads -) - -# Internal-only target, do not depend on directly. -absl_cc_library( - NAME - base_internal - HDRS - "internal/hide_ptr.h" - "internal/identity.h" - "internal/inline_variable.h" - "internal/invoke.h" - "internal/scheduling_mode.h" - COPTS - ${ABSL_DEFAULT_COPTS} - DEPS - absl::config - absl::type_traits -) - -absl_cc_library( - NAME - base - HDRS - "call_once.h" - "casts.h" - "internal/cycleclock.h" - "internal/cycleclock_config.h" - "internal/low_level_scheduling.h" - "internal/per_thread_tls.h" - "internal/spinlock.h" - "internal/sysinfo.h" - "internal/thread_identity.h" - "internal/tsan_mutex_interface.h" - "internal/unscaledcycleclock.h" - "internal/unscaledcycleclock_config.h" - SRCS - "internal/cycleclock.cc" - "internal/spinlock.cc" - "internal/sysinfo.cc" - "internal/thread_identity.cc" - "internal/unscaledcycleclock.cc" - COPTS - ${ABSL_DEFAULT_COPTS} - LINKOPTS - ${ABSL_DEFAULT_LINKOPTS} - $<$:-lrt> - $<$:-ladvapi32> - DEPS - absl::atomic_hook - absl::base_internal - absl::config - absl::core_headers - absl::dynamic_annotations - absl::log_severity - absl::raw_logging_internal - absl::spinlock_wait - absl::type_traits - Threads::Threads - PUBLIC -) - -# Internal-only target, do not depend on directly. -absl_cc_library( - NAME - throw_delegate - HDRS - "internal/throw_delegate.h" - SRCS - "internal/throw_delegate.cc" - COPTS - ${ABSL_DEFAULT_COPTS} - DEPS - absl::config - absl::raw_logging_internal -) - -# Internal-only target, do not depend on directly. -absl_cc_library( - NAME - exception_testing - HDRS - "internal/exception_testing.h" - COPTS - ${ABSL_DEFAULT_COPTS} - DEPS - absl::config - GTest::gtest - TESTONLY -) - -# Internal-only target, do not depend on directly. -absl_cc_library( - NAME - pretty_function - HDRS - "internal/pretty_function.h" - COPTS - ${ABSL_DEFAULT_COPTS} -) - -# Internal-only target, do not depend on directly. -absl_cc_library( - NAME - exception_safety_testing - HDRS - "internal/exception_safety_testing.h" - SRCS - "internal/exception_safety_testing.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::config - absl::pretty_function - absl::memory - absl::meta - absl::strings - absl::utility - GTest::gtest - TESTONLY -) - -absl_cc_test( - NAME - absl_exception_safety_testing_test - SRCS - "exception_safety_testing_test.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::exception_safety_testing - absl::memory - GTest::gtest_main -) - -# Internal-only target, do not depend on directly. -absl_cc_library( - NAME - atomic_hook_test_helper - SRCS - "internal/atomic_hook_test_helper.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::atomic_hook - absl::core_headers - TESTONLY -) - -absl_cc_test( - NAME - atomic_hook_test - SRCS - "internal/atomic_hook_test.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::atomic_hook_test_helper - absl::atomic_hook - absl::core_headers - GTest::gmock - GTest::gtest_main -) - -absl_cc_test( - NAME - bit_cast_test - SRCS - "bit_cast_test.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::base - absl::core_headers - GTest::gtest_main -) - -absl_cc_test( - NAME - errno_saver_test - SRCS - "internal/errno_saver_test.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::errno_saver - absl::strerror - GTest::gmock - GTest::gtest_main -) - -absl_cc_test( - NAME - throw_delegate_test - SRCS - "throw_delegate_test.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::base - absl::config - absl::throw_delegate - GTest::gtest_main -) - -absl_cc_test( - NAME - inline_variable_test - SRCS - "internal/inline_variable_testing.h" - "inline_variable_test.cc" - "inline_variable_test_a.cc" - "inline_variable_test_b.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::base_internal - GTest::gtest_main -) - -absl_cc_test( - NAME - invoke_test - SRCS - "invoke_test.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::base_internal - absl::memory - absl::strings - GTest::gmock - GTest::gtest_main -) - -# Internal-only target, do not depend on directly. -absl_cc_library( - NAME - spinlock_test_common - SRCS - "spinlock_test_common.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::base - absl::config - absl::base_internal - absl::core_headers - absl::synchronization - GTest::gtest - TESTONLY -) - -# On bazel BUILD this target use "alwayslink = 1" which is not implemented here -absl_cc_test( - NAME - spinlock_test - SRCS - "spinlock_test_common.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::base - absl::base_internal - absl::config - absl::core_headers - absl::synchronization - GTest::gtest_main -) - -# Internal-only target, do not depend on directly. -absl_cc_library( - NAME - endian - HDRS - "internal/endian.h" - "internal/unaligned_access.h" - COPTS - ${ABSL_DEFAULT_COPTS} - DEPS - absl::base - absl::config - absl::core_headers - PUBLIC -) - -absl_cc_test( - NAME - endian_test - SRCS - "internal/endian_test.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::base - absl::config - absl::endian - GTest::gtest_main -) - -absl_cc_test( - NAME - config_test - SRCS - "config_test.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::config - absl::synchronization - GTest::gtest_main -) - -absl_cc_test( - NAME - call_once_test - SRCS - "call_once_test.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::base - absl::core_headers - absl::synchronization - GTest::gtest_main -) - -absl_cc_test( - NAME - raw_logging_test - SRCS - "raw_logging_test.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::raw_logging_internal - absl::strings - GTest::gtest_main -) - -absl_cc_test( - NAME - sysinfo_test - SRCS - "internal/sysinfo_test.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::base - absl::synchronization - GTest::gtest_main -) - -absl_cc_test( - NAME - low_level_alloc_test - SRCS - "internal/low_level_alloc_test.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::malloc_internal - absl::node_hash_map - Threads::Threads -) - -absl_cc_test( - NAME - thread_identity_test - SRCS - "internal/thread_identity_test.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::base - absl::core_headers - absl::synchronization - Threads::Threads - GTest::gtest_main -) - -# Internal-only target, do not depend on directly. -absl_cc_library( - NAME - scoped_set_env - SRCS - "internal/scoped_set_env.cc" - HDRS - "internal/scoped_set_env.h" - COPTS - ${ABSL_DEFAULT_COPTS} - DEPS - absl::config - absl::raw_logging_internal -) - -absl_cc_test( - NAME - scoped_set_env_test - SRCS - "internal/scoped_set_env_test.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::scoped_set_env - GTest::gtest_main -) - -absl_cc_test( - NAME - cmake_thread_test - SRCS - "internal/cmake_thread_test.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::base -) - -absl_cc_test( - NAME - log_severity_test - SRCS - "log_severity_test.cc" - DEPS - absl::flags_internal - absl::flags_marshalling - absl::log_severity - absl::strings - GTest::gmock - GTest::gtest_main -) - -# Internal-only target, do not depend on directly. -absl_cc_library( - NAME - strerror - SRCS - "internal/strerror.cc" - HDRS - "internal/strerror.h" - COPTS - ${ABSL_DEFAULT_COPTS} - LINKOPTS - ${ABSL_DEFAULT_LINKOPTS} - DEPS - absl::config - absl::core_headers - absl::errno_saver -) - -absl_cc_test( - NAME - strerror_test - SRCS - "internal/strerror_test.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::strerror - absl::strings - GTest::gmock - GTest::gtest_main -) - -# Internal-only target, do not depend on directly. -absl_cc_library( - NAME - fast_type_id - HDRS - "internal/fast_type_id.h" - COPTS - ${ABSL_DEFAULT_COPTS} - LINKOPTS - ${ABSL_DEFAULT_LINKOPTS} - DEPS - absl::config -) - -absl_cc_test( - NAME - fast_type_id_test - SRCS - "internal/fast_type_id_test.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::fast_type_id - GTest::gtest_main -) - -# Internal-only target, do not depend on directly. -absl_cc_library( - NAME - prefetch - HDRS - "internal/prefetch.h" - COPTS - ${ABSL_DEFAULT_COPTS} - LINKOPTS - ${ABSL_DEFAULT_LINKOPTS} - DEPS - absl::config -) - -absl_cc_test( - NAME - prefetch_test - SRCS - "internal/prefetch_test.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::prefetch - GTest::gtest_main -) - -absl_cc_test( - NAME - optimization_test - SRCS - "optimization_test.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::core_headers - absl::optional - GTest::gtest_main -) diff --git a/src/third_party/abseil-cpp/absl/base/attributes.h b/src/third_party/abseil-cpp/absl/base/attributes.h deleted file mode 100644 index b7826e7766..0000000000 --- a/src/third_party/abseil-cpp/absl/base/attributes.h +++ /dev/null @@ -1,782 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// This header file defines macros for declaring attributes for functions, -// types, and variables. -// -// These macros are used within Abseil and allow the compiler to optimize, where -// applicable, certain function calls. -// -// Most macros here are exposing GCC or Clang features, and are stubbed out for -// other compilers. -// -// GCC attributes documentation: -// https://gcc.gnu.org/onlinedocs/gcc-4.7.0/gcc/Function-Attributes.html -// https://gcc.gnu.org/onlinedocs/gcc-4.7.0/gcc/Variable-Attributes.html -// https://gcc.gnu.org/onlinedocs/gcc-4.7.0/gcc/Type-Attributes.html -// -// Most attributes in this file are already supported by GCC 4.7. However, some -// of them are not supported in older version of Clang. Thus, we check -// `__has_attribute()` first. If the check fails, we check if we are on GCC and -// assume the attribute exists on GCC (which is verified on GCC 4.7). - -#ifndef ABSL_BASE_ATTRIBUTES_H_ -#define ABSL_BASE_ATTRIBUTES_H_ - -#include "absl/base/config.h" - -// ABSL_HAVE_ATTRIBUTE -// -// A function-like feature checking macro that is a wrapper around -// `__has_attribute`, which is defined by GCC 5+ and Clang and evaluates to a -// nonzero constant integer if the attribute is supported or 0 if not. -// -// It evaluates to zero if `__has_attribute` is not defined by the compiler. -// -// GCC: https://gcc.gnu.org/gcc-5/changes.html -// Clang: https://clang.llvm.org/docs/LanguageExtensions.html -#ifdef __has_attribute -#define ABSL_HAVE_ATTRIBUTE(x) __has_attribute(x) -#else -#define ABSL_HAVE_ATTRIBUTE(x) 0 -#endif - -// ABSL_HAVE_CPP_ATTRIBUTE -// -// A function-like feature checking macro that accepts C++11 style attributes. -// It's a wrapper around `__has_cpp_attribute`, defined by ISO C++ SD-6 -// (https://en.cppreference.com/w/cpp/experimental/feature_test). If we don't -// find `__has_cpp_attribute`, will evaluate to 0. -#if defined(__cplusplus) && defined(__has_cpp_attribute) -// NOTE: requiring __cplusplus above should not be necessary, but -// works around https://bugs.llvm.org/show_bug.cgi?id=23435. -#define ABSL_HAVE_CPP_ATTRIBUTE(x) __has_cpp_attribute(x) -#else -#define ABSL_HAVE_CPP_ATTRIBUTE(x) 0 -#endif - -// ----------------------------------------------------------------------------- -// Function Attributes -// ----------------------------------------------------------------------------- -// -// GCC: https://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html -// Clang: https://clang.llvm.org/docs/AttributeReference.html - -// ABSL_PRINTF_ATTRIBUTE -// ABSL_SCANF_ATTRIBUTE -// -// Tells the compiler to perform `printf` format string checking if the -// compiler supports it; see the 'format' attribute in -// . -// -// Note: As the GCC manual states, "[s]ince non-static C++ methods -// have an implicit 'this' argument, the arguments of such methods -// should be counted from two, not one." -#if ABSL_HAVE_ATTRIBUTE(format) || (defined(__GNUC__) && !defined(__clang__)) -#define ABSL_PRINTF_ATTRIBUTE(string_index, first_to_check) \ - __attribute__((__format__(__printf__, string_index, first_to_check))) -#define ABSL_SCANF_ATTRIBUTE(string_index, first_to_check) \ - __attribute__((__format__(__scanf__, string_index, first_to_check))) -#else -#define ABSL_PRINTF_ATTRIBUTE(string_index, first_to_check) -#define ABSL_SCANF_ATTRIBUTE(string_index, first_to_check) -#endif - -// ABSL_ATTRIBUTE_ALWAYS_INLINE -// ABSL_ATTRIBUTE_NOINLINE -// -// Forces functions to either inline or not inline. Introduced in gcc 3.1. -#if ABSL_HAVE_ATTRIBUTE(always_inline) || \ - (defined(__GNUC__) && !defined(__clang__)) -#define ABSL_ATTRIBUTE_ALWAYS_INLINE __attribute__((always_inline)) -#define ABSL_HAVE_ATTRIBUTE_ALWAYS_INLINE 1 -#else -#define ABSL_ATTRIBUTE_ALWAYS_INLINE -#endif - -#if ABSL_HAVE_ATTRIBUTE(noinline) || (defined(__GNUC__) && !defined(__clang__)) -#define ABSL_ATTRIBUTE_NOINLINE __attribute__((noinline)) -#define ABSL_HAVE_ATTRIBUTE_NOINLINE 1 -#else -#define ABSL_ATTRIBUTE_NOINLINE -#endif - -// ABSL_ATTRIBUTE_NO_TAIL_CALL -// -// Prevents the compiler from optimizing away stack frames for functions which -// end in a call to another function. -#if ABSL_HAVE_ATTRIBUTE(disable_tail_calls) -#define ABSL_HAVE_ATTRIBUTE_NO_TAIL_CALL 1 -#define ABSL_ATTRIBUTE_NO_TAIL_CALL __attribute__((disable_tail_calls)) -#elif defined(__GNUC__) && !defined(__clang__) && !defined(__e2k__) -#define ABSL_HAVE_ATTRIBUTE_NO_TAIL_CALL 1 -#define ABSL_ATTRIBUTE_NO_TAIL_CALL \ - __attribute__((optimize("no-optimize-sibling-calls"))) -#else -#define ABSL_ATTRIBUTE_NO_TAIL_CALL -#define ABSL_HAVE_ATTRIBUTE_NO_TAIL_CALL 0 -#endif - -// ABSL_ATTRIBUTE_WEAK -// -// Tags a function as weak for the purposes of compilation and linking. -// Weak attributes did not work properly in LLVM's Windows backend before -// 9.0.0, so disable them there. See https://bugs.llvm.org/show_bug.cgi?id=37598 -// for further information. -// The MinGW compiler doesn't complain about the weak attribute until the link -// step, presumably because Windows doesn't use ELF binaries. -#if (ABSL_HAVE_ATTRIBUTE(weak) || \ - (defined(__GNUC__) && !defined(__clang__))) && \ - (!defined(_WIN32) || (defined(__clang__) && __clang_major__ >= 9)) && \ - !defined(__MINGW32__) -#undef ABSL_ATTRIBUTE_WEAK -#define ABSL_ATTRIBUTE_WEAK __attribute__((weak)) -#define ABSL_HAVE_ATTRIBUTE_WEAK 1 -#else -#define ABSL_ATTRIBUTE_WEAK -#define ABSL_HAVE_ATTRIBUTE_WEAK 0 -#endif - -// ABSL_ATTRIBUTE_NONNULL -// -// Tells the compiler either (a) that a particular function parameter -// should be a non-null pointer, or (b) that all pointer arguments should -// be non-null. -// -// Note: As the GCC manual states, "[s]ince non-static C++ methods -// have an implicit 'this' argument, the arguments of such methods -// should be counted from two, not one." -// -// Args are indexed starting at 1. -// -// For non-static class member functions, the implicit `this` argument -// is arg 1, and the first explicit argument is arg 2. For static class member -// functions, there is no implicit `this`, and the first explicit argument is -// arg 1. -// -// Example: -// -// /* arg_a cannot be null, but arg_b can */ -// void Function(void* arg_a, void* arg_b) ABSL_ATTRIBUTE_NONNULL(1); -// -// class C { -// /* arg_a cannot be null, but arg_b can */ -// void Method(void* arg_a, void* arg_b) ABSL_ATTRIBUTE_NONNULL(2); -// -// /* arg_a cannot be null, but arg_b can */ -// static void StaticMethod(void* arg_a, void* arg_b) -// ABSL_ATTRIBUTE_NONNULL(1); -// }; -// -// If no arguments are provided, then all pointer arguments should be non-null. -// -// /* No pointer arguments may be null. */ -// void Function(void* arg_a, void* arg_b, int arg_c) ABSL_ATTRIBUTE_NONNULL(); -// -// NOTE: The GCC nonnull attribute actually accepts a list of arguments, but -// ABSL_ATTRIBUTE_NONNULL does not. -#if ABSL_HAVE_ATTRIBUTE(nonnull) || (defined(__GNUC__) && !defined(__clang__)) -#define ABSL_ATTRIBUTE_NONNULL(arg_index) __attribute__((nonnull(arg_index))) -#else -#define ABSL_ATTRIBUTE_NONNULL(...) -#endif - -// ABSL_ATTRIBUTE_NORETURN -// -// Tells the compiler that a given function never returns. -#if ABSL_HAVE_ATTRIBUTE(noreturn) || (defined(__GNUC__) && !defined(__clang__)) -#define ABSL_ATTRIBUTE_NORETURN __attribute__((noreturn)) -#elif defined(_MSC_VER) -#define ABSL_ATTRIBUTE_NORETURN __declspec(noreturn) -#else -#define ABSL_ATTRIBUTE_NORETURN -#endif - -// ABSL_ATTRIBUTE_NO_SANITIZE_ADDRESS -// -// Tells the AddressSanitizer (or other memory testing tools) to ignore a given -// function. Useful for cases when a function reads random locations on stack, -// calls _exit from a cloned subprocess, deliberately accesses buffer -// out of bounds or does other scary things with memory. -// NOTE: GCC supports AddressSanitizer(asan) since 4.8. -// https://gcc.gnu.org/gcc-4.8/changes.html -#if ABSL_HAVE_ATTRIBUTE(no_sanitize_address) -#define ABSL_ATTRIBUTE_NO_SANITIZE_ADDRESS __attribute__((no_sanitize_address)) -#elif defined(_MSC_VER) && _MSC_VER >= 1928 -// https://docs.microsoft.com/en-us/cpp/cpp/no-sanitize-address -#define ABSL_ATTRIBUTE_NO_SANITIZE_ADDRESS __declspec(no_sanitize_address) -#else -#define ABSL_ATTRIBUTE_NO_SANITIZE_ADDRESS -#endif - -// ABSL_ATTRIBUTE_NO_SANITIZE_MEMORY -// -// Tells the MemorySanitizer to relax the handling of a given function. All "Use -// of uninitialized value" warnings from such functions will be suppressed, and -// all values loaded from memory will be considered fully initialized. This -// attribute is similar to the ABSL_ATTRIBUTE_NO_SANITIZE_ADDRESS attribute -// above, but deals with initialized-ness rather than addressability issues. -// NOTE: MemorySanitizer(msan) is supported by Clang but not GCC. -#if ABSL_HAVE_ATTRIBUTE(no_sanitize_memory) -#define ABSL_ATTRIBUTE_NO_SANITIZE_MEMORY __attribute__((no_sanitize_memory)) -#else -#define ABSL_ATTRIBUTE_NO_SANITIZE_MEMORY -#endif - -// ABSL_ATTRIBUTE_NO_SANITIZE_THREAD -// -// Tells the ThreadSanitizer to not instrument a given function. -// NOTE: GCC supports ThreadSanitizer(tsan) since 4.8. -// https://gcc.gnu.org/gcc-4.8/changes.html -#if ABSL_HAVE_ATTRIBUTE(no_sanitize_thread) -#define ABSL_ATTRIBUTE_NO_SANITIZE_THREAD __attribute__((no_sanitize_thread)) -#else -#define ABSL_ATTRIBUTE_NO_SANITIZE_THREAD -#endif - -// ABSL_ATTRIBUTE_NO_SANITIZE_UNDEFINED -// -// Tells the UndefinedSanitizer to ignore a given function. Useful for cases -// where certain behavior (eg. division by zero) is being used intentionally. -// NOTE: GCC supports UndefinedBehaviorSanitizer(ubsan) since 4.9. -// https://gcc.gnu.org/gcc-4.9/changes.html -#if ABSL_HAVE_ATTRIBUTE(no_sanitize_undefined) -#define ABSL_ATTRIBUTE_NO_SANITIZE_UNDEFINED \ - __attribute__((no_sanitize_undefined)) -#elif ABSL_HAVE_ATTRIBUTE(no_sanitize) -#define ABSL_ATTRIBUTE_NO_SANITIZE_UNDEFINED \ - __attribute__((no_sanitize("undefined"))) -#else -#define ABSL_ATTRIBUTE_NO_SANITIZE_UNDEFINED -#endif - -// ABSL_ATTRIBUTE_NO_SANITIZE_CFI -// -// Tells the ControlFlowIntegrity sanitizer to not instrument a given function. -// See https://clang.llvm.org/docs/ControlFlowIntegrity.html for details. -#if ABSL_HAVE_ATTRIBUTE(no_sanitize) -#define ABSL_ATTRIBUTE_NO_SANITIZE_CFI __attribute__((no_sanitize("cfi"))) -#else -#define ABSL_ATTRIBUTE_NO_SANITIZE_CFI -#endif - -// ABSL_ATTRIBUTE_NO_SANITIZE_SAFESTACK -// -// Tells the SafeStack to not instrument a given function. -// See https://clang.llvm.org/docs/SafeStack.html for details. -#if ABSL_HAVE_ATTRIBUTE(no_sanitize) -#define ABSL_ATTRIBUTE_NO_SANITIZE_SAFESTACK \ - __attribute__((no_sanitize("safe-stack"))) -#else -#define ABSL_ATTRIBUTE_NO_SANITIZE_SAFESTACK -#endif - -// ABSL_ATTRIBUTE_RETURNS_NONNULL -// -// Tells the compiler that a particular function never returns a null pointer. -#if ABSL_HAVE_ATTRIBUTE(returns_nonnull) -#define ABSL_ATTRIBUTE_RETURNS_NONNULL __attribute__((returns_nonnull)) -#else -#define ABSL_ATTRIBUTE_RETURNS_NONNULL -#endif - -// ABSL_HAVE_ATTRIBUTE_SECTION -// -// Indicates whether labeled sections are supported. Weak symbol support is -// a prerequisite. Labeled sections are not supported on Darwin/iOS. -#ifdef ABSL_HAVE_ATTRIBUTE_SECTION -#error ABSL_HAVE_ATTRIBUTE_SECTION cannot be directly set -#elif (ABSL_HAVE_ATTRIBUTE(section) || \ - (defined(__GNUC__) && !defined(__clang__))) && \ - !defined(__APPLE__) && ABSL_HAVE_ATTRIBUTE_WEAK -#define ABSL_HAVE_ATTRIBUTE_SECTION 1 - -// ABSL_ATTRIBUTE_SECTION -// -// Tells the compiler/linker to put a given function into a section and define -// `__start_ ## name` and `__stop_ ## name` symbols to bracket the section. -// This functionality is supported by GNU linker. Any function annotated with -// `ABSL_ATTRIBUTE_SECTION` must not be inlined, or it will be placed into -// whatever section its caller is placed into. -// -#ifndef ABSL_ATTRIBUTE_SECTION -#define ABSL_ATTRIBUTE_SECTION(name) \ - __attribute__((section(#name))) __attribute__((noinline)) -#endif - -// ABSL_ATTRIBUTE_SECTION_VARIABLE -// -// Tells the compiler/linker to put a given variable into a section and define -// `__start_ ## name` and `__stop_ ## name` symbols to bracket the section. -// This functionality is supported by GNU linker. -#ifndef ABSL_ATTRIBUTE_SECTION_VARIABLE -#ifdef _AIX -// __attribute__((section(#name))) on AIX is achived by using the `.csect` psudo -// op which includes an additional integer as part of its syntax indcating -// alignment. If data fall under different alignments then you might get a -// compilation error indicating a `Section type conflict`. -#define ABSL_ATTRIBUTE_SECTION_VARIABLE(name) -#else -#define ABSL_ATTRIBUTE_SECTION_VARIABLE(name) __attribute__((section(#name))) -#endif -#endif - -// ABSL_DECLARE_ATTRIBUTE_SECTION_VARS -// -// A weak section declaration to be used as a global declaration -// for ABSL_ATTRIBUTE_SECTION_START|STOP(name) to compile and link -// even without functions with ABSL_ATTRIBUTE_SECTION(name). -// ABSL_DEFINE_ATTRIBUTE_SECTION should be in the exactly one file; it's -// a no-op on ELF but not on Mach-O. -// -#ifndef ABSL_DECLARE_ATTRIBUTE_SECTION_VARS -#define ABSL_DECLARE_ATTRIBUTE_SECTION_VARS(name) \ - extern char __start_##name[] ABSL_ATTRIBUTE_WEAK; \ - extern char __stop_##name[] ABSL_ATTRIBUTE_WEAK -#endif -#ifndef ABSL_DEFINE_ATTRIBUTE_SECTION_VARS -#define ABSL_INIT_ATTRIBUTE_SECTION_VARS(name) -#define ABSL_DEFINE_ATTRIBUTE_SECTION_VARS(name) -#endif - -// ABSL_ATTRIBUTE_SECTION_START -// -// Returns `void*` pointers to start/end of a section of code with -// functions having ABSL_ATTRIBUTE_SECTION(name). -// Returns 0 if no such functions exist. -// One must ABSL_DECLARE_ATTRIBUTE_SECTION_VARS(name) for this to compile and -// link. -// -#define ABSL_ATTRIBUTE_SECTION_START(name) \ - (reinterpret_cast(__start_##name)) -#define ABSL_ATTRIBUTE_SECTION_STOP(name) \ - (reinterpret_cast(__stop_##name)) - -#else // !ABSL_HAVE_ATTRIBUTE_SECTION - -#define ABSL_HAVE_ATTRIBUTE_SECTION 0 - -// provide dummy definitions -#define ABSL_ATTRIBUTE_SECTION(name) -#define ABSL_ATTRIBUTE_SECTION_VARIABLE(name) -#define ABSL_INIT_ATTRIBUTE_SECTION_VARS(name) -#define ABSL_DEFINE_ATTRIBUTE_SECTION_VARS(name) -#define ABSL_DECLARE_ATTRIBUTE_SECTION_VARS(name) -#define ABSL_ATTRIBUTE_SECTION_START(name) (reinterpret_cast(0)) -#define ABSL_ATTRIBUTE_SECTION_STOP(name) (reinterpret_cast(0)) - -#endif // ABSL_ATTRIBUTE_SECTION - -// ABSL_ATTRIBUTE_STACK_ALIGN_FOR_OLD_LIBC -// -// Support for aligning the stack on 32-bit x86. -#if ABSL_HAVE_ATTRIBUTE(force_align_arg_pointer) || \ - (defined(__GNUC__) && !defined(__clang__)) -#if defined(__i386__) -#define ABSL_ATTRIBUTE_STACK_ALIGN_FOR_OLD_LIBC \ - __attribute__((force_align_arg_pointer)) -#define ABSL_REQUIRE_STACK_ALIGN_TRAMPOLINE (0) -#elif defined(__x86_64__) -#define ABSL_REQUIRE_STACK_ALIGN_TRAMPOLINE (1) -#define ABSL_ATTRIBUTE_STACK_ALIGN_FOR_OLD_LIBC -#else // !__i386__ && !__x86_64 -#define ABSL_REQUIRE_STACK_ALIGN_TRAMPOLINE (0) -#define ABSL_ATTRIBUTE_STACK_ALIGN_FOR_OLD_LIBC -#endif // __i386__ -#else -#define ABSL_ATTRIBUTE_STACK_ALIGN_FOR_OLD_LIBC -#define ABSL_REQUIRE_STACK_ALIGN_TRAMPOLINE (0) -#endif - -// ABSL_MUST_USE_RESULT -// -// Tells the compiler to warn about unused results. -// -// For code or headers that are assured to only build with C++17 and up, prefer -// just using the standard `[[nodiscard]]` directly over this macro. -// -// When annotating a function, it must appear as the first part of the -// declaration or definition. The compiler will warn if the return value from -// such a function is unused: -// -// ABSL_MUST_USE_RESULT Sprocket* AllocateSprocket(); -// AllocateSprocket(); // Triggers a warning. -// -// When annotating a class, it is equivalent to annotating every function which -// returns an instance. -// -// class ABSL_MUST_USE_RESULT Sprocket {}; -// Sprocket(); // Triggers a warning. -// -// Sprocket MakeSprocket(); -// MakeSprocket(); // Triggers a warning. -// -// Note that references and pointers are not instances: -// -// Sprocket* SprocketPointer(); -// SprocketPointer(); // Does *not* trigger a warning. -// -// ABSL_MUST_USE_RESULT allows using cast-to-void to suppress the unused result -// warning. For that, warn_unused_result is used only for clang but not for gcc. -// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66425 -// -// Note: past advice was to place the macro after the argument list. -// -// TODO(b/176172494): Use ABSL_HAVE_CPP_ATTRIBUTE(nodiscard) when all code is -// compliant with the stricter [[nodiscard]]. -#if defined(__clang__) && ABSL_HAVE_ATTRIBUTE(warn_unused_result) -#define ABSL_MUST_USE_RESULT __attribute__((warn_unused_result)) -#else -#define ABSL_MUST_USE_RESULT -#endif - -// ABSL_ATTRIBUTE_HOT, ABSL_ATTRIBUTE_COLD -// -// Tells GCC that a function is hot or cold. GCC can use this information to -// improve static analysis, i.e. a conditional branch to a cold function -// is likely to be not-taken. -// This annotation is used for function declarations. -// -// Example: -// -// int foo() ABSL_ATTRIBUTE_HOT; -#if ABSL_HAVE_ATTRIBUTE(hot) || (defined(__GNUC__) && !defined(__clang__)) -#define ABSL_ATTRIBUTE_HOT __attribute__((hot)) -#else -#define ABSL_ATTRIBUTE_HOT -#endif - -#if ABSL_HAVE_ATTRIBUTE(cold) || (defined(__GNUC__) && !defined(__clang__)) -#define ABSL_ATTRIBUTE_COLD __attribute__((cold)) -#else -#define ABSL_ATTRIBUTE_COLD -#endif - -// ABSL_XRAY_ALWAYS_INSTRUMENT, ABSL_XRAY_NEVER_INSTRUMENT, ABSL_XRAY_LOG_ARGS -// -// We define the ABSL_XRAY_ALWAYS_INSTRUMENT and ABSL_XRAY_NEVER_INSTRUMENT -// macro used as an attribute to mark functions that must always or never be -// instrumented by XRay. Currently, this is only supported in Clang/LLVM. -// -// For reference on the LLVM XRay instrumentation, see -// http://llvm.org/docs/XRay.html. -// -// A function with the XRAY_ALWAYS_INSTRUMENT macro attribute in its declaration -// will always get the XRay instrumentation sleds. These sleds may introduce -// some binary size and runtime overhead and must be used sparingly. -// -// These attributes only take effect when the following conditions are met: -// -// * The file/target is built in at least C++11 mode, with a Clang compiler -// that supports XRay attributes. -// * The file/target is built with the -fxray-instrument flag set for the -// Clang/LLVM compiler. -// * The function is defined in the translation unit (the compiler honors the -// attribute in either the definition or the declaration, and must match). -// -// There are cases when, even when building with XRay instrumentation, users -// might want to control specifically which functions are instrumented for a -// particular build using special-case lists provided to the compiler. These -// special case lists are provided to Clang via the -// -fxray-always-instrument=... and -fxray-never-instrument=... flags. The -// attributes in source take precedence over these special-case lists. -// -// To disable the XRay attributes at build-time, users may define -// ABSL_NO_XRAY_ATTRIBUTES. Do NOT define ABSL_NO_XRAY_ATTRIBUTES on specific -// packages/targets, as this may lead to conflicting definitions of functions at -// link-time. -// -// XRay isn't currently supported on Android: -// https://github.com/android/ndk/issues/368 -#if ABSL_HAVE_CPP_ATTRIBUTE(clang::xray_always_instrument) && \ - !defined(ABSL_NO_XRAY_ATTRIBUTES) && !defined(__ANDROID__) -#define ABSL_XRAY_ALWAYS_INSTRUMENT [[clang::xray_always_instrument]] -#define ABSL_XRAY_NEVER_INSTRUMENT [[clang::xray_never_instrument]] -#if ABSL_HAVE_CPP_ATTRIBUTE(clang::xray_log_args) -#define ABSL_XRAY_LOG_ARGS(N) \ - [[clang::xray_always_instrument, clang::xray_log_args(N)]] -#else -#define ABSL_XRAY_LOG_ARGS(N) [[clang::xray_always_instrument]] -#endif -#else -#define ABSL_XRAY_ALWAYS_INSTRUMENT -#define ABSL_XRAY_NEVER_INSTRUMENT -#define ABSL_XRAY_LOG_ARGS(N) -#endif - -// ABSL_ATTRIBUTE_REINITIALIZES -// -// Indicates that a member function reinitializes the entire object to a known -// state, independent of the previous state of the object. -// -// The clang-tidy check bugprone-use-after-move allows member functions marked -// with this attribute to be called on objects that have been moved from; -// without the attribute, this would result in a use-after-move warning. -#if ABSL_HAVE_CPP_ATTRIBUTE(clang::reinitializes) -#define ABSL_ATTRIBUTE_REINITIALIZES [[clang::reinitializes]] -#else -#define ABSL_ATTRIBUTE_REINITIALIZES -#endif - -// ----------------------------------------------------------------------------- -// Variable Attributes -// ----------------------------------------------------------------------------- - -// ABSL_ATTRIBUTE_UNUSED -// -// Prevents the compiler from complaining about variables that appear unused. -// -// For code or headers that are assured to only build with C++17 and up, prefer -// just using the standard '[[maybe_unused]]' directly over this macro. -// -// Due to differences in positioning requirements between the old, compiler -// specific __attribute__ syntax and the now standard [[maybe_unused]], this -// macro does not attempt to take advantage of '[[maybe_unused]]'. -#if ABSL_HAVE_ATTRIBUTE(unused) || (defined(__GNUC__) && !defined(__clang__)) -#undef ABSL_ATTRIBUTE_UNUSED -#define ABSL_ATTRIBUTE_UNUSED __attribute__((__unused__)) -#else -#define ABSL_ATTRIBUTE_UNUSED -#endif - -// ABSL_ATTRIBUTE_INITIAL_EXEC -// -// Tells the compiler to use "initial-exec" mode for a thread-local variable. -// See http://people.redhat.com/drepper/tls.pdf for the gory details. -#if ABSL_HAVE_ATTRIBUTE(tls_model) || (defined(__GNUC__) && !defined(__clang__)) -#define ABSL_ATTRIBUTE_INITIAL_EXEC __attribute__((tls_model("initial-exec"))) -#else -#define ABSL_ATTRIBUTE_INITIAL_EXEC -#endif - -// ABSL_ATTRIBUTE_PACKED -// -// Instructs the compiler not to use natural alignment for a tagged data -// structure, but instead to reduce its alignment to 1. -// -// Therefore, DO NOT APPLY THIS ATTRIBUTE TO STRUCTS CONTAINING ATOMICS. Doing -// so can cause atomic variables to be mis-aligned and silently violate -// atomicity on x86. -// -// This attribute can either be applied to members of a structure or to a -// structure in its entirety. Applying this attribute (judiciously) to a -// structure in its entirety to optimize the memory footprint of very -// commonly-used structs is fine. Do not apply this attribute to a structure in -// its entirety if the purpose is to control the offsets of the members in the -// structure. Instead, apply this attribute only to structure members that need -// it. -// -// When applying ABSL_ATTRIBUTE_PACKED only to specific structure members the -// natural alignment of structure members not annotated is preserved. Aligned -// member accesses are faster than non-aligned member accesses even if the -// targeted microprocessor supports non-aligned accesses. -#if ABSL_HAVE_ATTRIBUTE(packed) || (defined(__GNUC__) && !defined(__clang__)) -#define ABSL_ATTRIBUTE_PACKED __attribute__((__packed__)) -#else -#define ABSL_ATTRIBUTE_PACKED -#endif - -// ABSL_ATTRIBUTE_FUNC_ALIGN -// -// Tells the compiler to align the function start at least to certain -// alignment boundary -#if ABSL_HAVE_ATTRIBUTE(aligned) || (defined(__GNUC__) && !defined(__clang__)) -#define ABSL_ATTRIBUTE_FUNC_ALIGN(bytes) __attribute__((aligned(bytes))) -#else -#define ABSL_ATTRIBUTE_FUNC_ALIGN(bytes) -#endif - -// ABSL_FALLTHROUGH_INTENDED -// -// Annotates implicit fall-through between switch labels, allowing a case to -// indicate intentional fallthrough and turn off warnings about any lack of a -// `break` statement. The ABSL_FALLTHROUGH_INTENDED macro should be followed by -// a semicolon and can be used in most places where `break` can, provided that -// no statements exist between it and the next switch label. -// -// Example: -// -// switch (x) { -// case 40: -// case 41: -// if (truth_is_out_there) { -// ++x; -// ABSL_FALLTHROUGH_INTENDED; // Use instead of/along with annotations -// // in comments -// } else { -// return x; -// } -// case 42: -// ... -// -// Notes: When supported, GCC and Clang can issue a warning on switch labels -// with unannotated fallthrough using the warning `-Wimplicit-fallthrough`. See -// clang documentation on language extensions for details: -// https://clang.llvm.org/docs/AttributeReference.html#fallthrough-clang-fallthrough -// -// When used with unsupported compilers, the ABSL_FALLTHROUGH_INTENDED macro has -// no effect on diagnostics. In any case this macro has no effect on runtime -// behavior and performance of code. - -#ifdef ABSL_FALLTHROUGH_INTENDED -#error "ABSL_FALLTHROUGH_INTENDED should not be defined." -#elif ABSL_HAVE_CPP_ATTRIBUTE(fallthrough) -#define ABSL_FALLTHROUGH_INTENDED [[fallthrough]] -#elif ABSL_HAVE_CPP_ATTRIBUTE(clang::fallthrough) -#define ABSL_FALLTHROUGH_INTENDED [[clang::fallthrough]] -#elif ABSL_HAVE_CPP_ATTRIBUTE(gnu::fallthrough) -#define ABSL_FALLTHROUGH_INTENDED [[gnu::fallthrough]] -#else -#define ABSL_FALLTHROUGH_INTENDED \ - do { \ - } while (0) -#endif - -// ABSL_DEPRECATED() -// -// Marks a deprecated class, struct, enum, function, method and variable -// declarations. The macro argument is used as a custom diagnostic message (e.g. -// suggestion of a better alternative). -// -// For code or headers that are assured to only build with C++14 and up, prefer -// just using the standard `[[deprecated("message")]]` directly over this macro. -// -// Examples: -// -// class ABSL_DEPRECATED("Use Bar instead") Foo {...}; -// -// ABSL_DEPRECATED("Use Baz() instead") void Bar() {...} -// -// template -// ABSL_DEPRECATED("Use DoThat() instead") -// void DoThis(); -// -// enum FooEnum { -// kBar ABSL_DEPRECATED("Use kBaz instead"), -// }; -// -// Every usage of a deprecated entity will trigger a warning when compiled with -// GCC/Clang's `-Wdeprecated-declarations` option. Google's production toolchain -// turns this warning off by default, instead relying on clang-tidy to report -// new uses of deprecated code. -#if ABSL_HAVE_ATTRIBUTE(deprecated) -#define ABSL_DEPRECATED(message) __attribute__((deprecated(message))) -#else -#define ABSL_DEPRECATED(message) -#endif - -// ABSL_CONST_INIT -// -// A variable declaration annotated with the `ABSL_CONST_INIT` attribute will -// not compile (on supported platforms) unless the variable has a constant -// initializer. This is useful for variables with static and thread storage -// duration, because it guarantees that they will not suffer from the so-called -// "static init order fiasco". -// -// This attribute must be placed on the initializing declaration of the -// variable. Some compilers will give a -Wmissing-constinit warning when this -// attribute is placed on some other declaration but missing from the -// initializing declaration. -// -// In some cases (notably with thread_local variables), `ABSL_CONST_INIT` can -// also be used in a non-initializing declaration to tell the compiler that a -// variable is already initialized, reducing overhead that would otherwise be -// incurred by a hidden guard variable. Thus annotating all declarations with -// this attribute is recommended to potentially enhance optimization. -// -// Example: -// -// class MyClass { -// public: -// ABSL_CONST_INIT static MyType my_var; -// }; -// -// ABSL_CONST_INIT MyType MyClass::my_var = MakeMyType(...); -// -// For code or headers that are assured to only build with C++20 and up, prefer -// just using the standard `constinit` keyword directly over this macro. -// -// Note that this attribute is redundant if the variable is declared constexpr. -#if defined(__cpp_constinit) && __cpp_constinit >= 201907L -#define ABSL_CONST_INIT constinit -#elif ABSL_HAVE_CPP_ATTRIBUTE(clang::require_constant_initialization) -#define ABSL_CONST_INIT [[clang::require_constant_initialization]] -#else -#define ABSL_CONST_INIT -#endif - -// These annotations are not available yet due to fear of breaking code. -#define ABSL_ATTRIBUTE_PURE_FUNCTION -#define ABSL_ATTRIBUTE_CONST_FUNCTION - -// ABSL_ATTRIBUTE_LIFETIME_BOUND indicates that a resource owned by a function -// parameter or implicit object parameter is retained by the return value of the -// annotated function (or, for a parameter of a constructor, in the value of the -// constructed object). This attribute causes warnings to be produced if a -// temporary object does not live long enough. -// -// When applied to a reference parameter, the referenced object is assumed to be -// retained by the return value of the function. When applied to a non-reference -// parameter (for example, a pointer or a class type), all temporaries -// referenced by the parameter are assumed to be retained by the return value of -// the function. -// -// See also the upstream documentation: -// https://clang.llvm.org/docs/AttributeReference.html#lifetimebound -#if ABSL_HAVE_CPP_ATTRIBUTE(clang::lifetimebound) -#define ABSL_ATTRIBUTE_LIFETIME_BOUND [[clang::lifetimebound]] -#elif ABSL_HAVE_ATTRIBUTE(lifetimebound) -#define ABSL_ATTRIBUTE_LIFETIME_BOUND __attribute__((lifetimebound)) -#else -#define ABSL_ATTRIBUTE_LIFETIME_BOUND -#endif - -// ABSL_ATTRIBUTE_TRIVIAL_ABI -// Indicates that a type is "trivially relocatable" -- meaning it can be -// relocated without invoking the constructor/destructor, using a form of move -// elision. -// -// From a memory safety point of view, putting aside destructor ordering, it's -// safe to apply ABSL_ATTRIBUTE_TRIVIAL_ABI if an object's location -// can change over the course of its lifetime: if a constructor can be run one -// place, and then the object magically teleports to another place where some -// methods are run, and then the object teleports to yet another place where it -// is destroyed. This is notably not true for self-referential types, where the -// move-constructor must keep the self-reference up to date. If the type changed -// location without invoking the move constructor, it would have a dangling -// self-reference. -// -// The use of this teleporting machinery means that the number of paired -// move/destroy operations can change, and so it is a bad idea to apply this to -// a type meant to count the number of moves. -// -// Warning: applying this can, rarely, break callers. Objects passed by value -// will be destroyed at the end of the call, instead of the end of the -// full-expression containing the call. In addition, it changes the ABI -// of functions accepting this type by value (e.g. to pass in registers). -// -// See also the upstream documentation: -// https://clang.llvm.org/docs/AttributeReference.html#trivial-abi -// -#if ABSL_HAVE_CPP_ATTRIBUTE(clang::trivial_abi) -#define ABSL_ATTRIBUTE_TRIVIAL_ABI [[clang::trivial_abi]] -#define ABSL_HAVE_ATTRIBUTE_TRIVIAL_ABI 1 -#elif ABSL_HAVE_ATTRIBUTE(trivial_abi) -#define ABSL_ATTRIBUTE_TRIVIAL_ABI __attribute__((trivial_abi)) -#define ABSL_HAVE_ATTRIBUTE_TRIVIAL_ABI 1 -#else -#define ABSL_ATTRIBUTE_TRIVIAL_ABI -#endif - -#endif // ABSL_BASE_ATTRIBUTES_H_ diff --git a/src/third_party/abseil-cpp/absl/base/bit_cast_test.cc b/src/third_party/abseil-cpp/absl/base/bit_cast_test.cc deleted file mode 100644 index 8a3a41ea02..0000000000 --- a/src/third_party/abseil-cpp/absl/base/bit_cast_test.cc +++ /dev/null @@ -1,109 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Unit test for bit_cast template. - -#include -#include - -#include "gtest/gtest.h" -#include "absl/base/casts.h" -#include "absl/base/macros.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace { - -template -struct marshall { char buf[N]; }; - -template -void TestMarshall(const T values[], int num_values) { - for (int i = 0; i < num_values; ++i) { - T t0 = values[i]; - marshall m0 = absl::bit_cast >(t0); - T t1 = absl::bit_cast(m0); - marshall m1 = absl::bit_cast >(t1); - ASSERT_EQ(0, memcmp(&t0, &t1, sizeof(T))); - ASSERT_EQ(0, memcmp(&m0, &m1, sizeof(T))); - } -} - -// Convert back and forth to an integral type. The C++ standard does -// not guarantee this will work, but we test that this works on all the -// platforms we support. -// -// Likewise, we below make assumptions about sizeof(float) and -// sizeof(double) which the standard does not guarantee, but which hold on the -// platforms we support. - -template -void TestIntegral(const T values[], int num_values) { - for (int i = 0; i < num_values; ++i) { - T t0 = values[i]; - I i0 = absl::bit_cast(t0); - T t1 = absl::bit_cast(i0); - I i1 = absl::bit_cast(t1); - ASSERT_EQ(0, memcmp(&t0, &t1, sizeof(T))); - ASSERT_EQ(i0, i1); - } -} - -TEST(BitCast, Bool) { - static const bool bool_list[] = { false, true }; - TestMarshall(bool_list, ABSL_ARRAYSIZE(bool_list)); -} - -TEST(BitCast, Int32) { - static const int32_t int_list[] = - { 0, 1, 100, 2147483647, -1, -100, -2147483647, -2147483647-1 }; - TestMarshall(int_list, ABSL_ARRAYSIZE(int_list)); -} - -TEST(BitCast, Int64) { - static const int64_t int64_list[] = - { 0, 1, 1LL << 40, -1, -(1LL<<40) }; - TestMarshall(int64_list, ABSL_ARRAYSIZE(int64_list)); -} - -TEST(BitCast, Uint64) { - static const uint64_t uint64_list[] = - { 0, 1, 1LLU << 40, 1LLU << 63 }; - TestMarshall(uint64_list, ABSL_ARRAYSIZE(uint64_list)); -} - -TEST(BitCast, Float) { - static const float float_list[] = - { 0.0f, 1.0f, -1.0f, 10.0f, -10.0f, - 1e10f, 1e20f, 1e-10f, 1e-20f, - 2.71828f, 3.14159f }; - TestMarshall(float_list, ABSL_ARRAYSIZE(float_list)); - TestIntegral(float_list, ABSL_ARRAYSIZE(float_list)); - TestIntegral(float_list, ABSL_ARRAYSIZE(float_list)); -} - -TEST(BitCast, Double) { - static const double double_list[] = - { 0.0, 1.0, -1.0, 10.0, -10.0, - 1e10, 1e100, 1e-10, 1e-100, - 2.718281828459045, - 3.141592653589793238462643383279502884197169399375105820974944 }; - TestMarshall(double_list, ABSL_ARRAYSIZE(double_list)); - TestIntegral(double_list, ABSL_ARRAYSIZE(double_list)); - TestIntegral(double_list, ABSL_ARRAYSIZE(double_list)); -} - -} // namespace -ABSL_NAMESPACE_END -} // namespace absl diff --git a/src/third_party/abseil-cpp/absl/base/call_once.h b/src/third_party/abseil-cpp/absl/base/call_once.h deleted file mode 100644 index 96109f537c..0000000000 --- a/src/third_party/abseil-cpp/absl/base/call_once.h +++ /dev/null @@ -1,219 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// ----------------------------------------------------------------------------- -// File: call_once.h -// ----------------------------------------------------------------------------- -// -// This header file provides an Abseil version of `std::call_once` for invoking -// a given function at most once, across all threads. This Abseil version is -// faster than the C++11 version and incorporates the C++17 argument-passing -// fix, so that (for example) non-const references may be passed to the invoked -// function. - -#ifndef ABSL_BASE_CALL_ONCE_H_ -#define ABSL_BASE_CALL_ONCE_H_ - -#include -#include -#include -#include -#include - -#include "absl/base/internal/invoke.h" -#include "absl/base/internal/low_level_scheduling.h" -#include "absl/base/internal/raw_logging.h" -#include "absl/base/internal/scheduling_mode.h" -#include "absl/base/internal/spinlock_wait.h" -#include "absl/base/macros.h" -#include "absl/base/optimization.h" -#include "absl/base/port.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN - -class once_flag; - -namespace base_internal { -std::atomic* ControlWord(absl::once_flag* flag); -} // namespace base_internal - -// call_once() -// -// For all invocations using a given `once_flag`, invokes a given `fn` exactly -// once across all threads. The first call to `call_once()` with a particular -// `once_flag` argument (that does not throw an exception) will run the -// specified function with the provided `args`; other calls with the same -// `once_flag` argument will not run the function, but will wait -// for the provided function to finish running (if it is still running). -// -// This mechanism provides a safe, simple, and fast mechanism for one-time -// initialization in a multi-threaded process. -// -// Example: -// -// class MyInitClass { -// public: -// ... -// mutable absl::once_flag once_; -// -// MyInitClass* init() const { -// absl::call_once(once_, &MyInitClass::Init, this); -// return ptr_; -// } -// -template -void call_once(absl::once_flag& flag, Callable&& fn, Args&&... args); - -// once_flag -// -// Objects of this type are used to distinguish calls to `call_once()` and -// ensure the provided function is only invoked once across all threads. This -// type is not copyable or movable. However, it has a `constexpr` -// constructor, and is safe to use as a namespace-scoped global variable. -class once_flag { - public: - constexpr once_flag() : control_(0) {} - once_flag(const once_flag&) = delete; - once_flag& operator=(const once_flag&) = delete; - - private: - friend std::atomic* base_internal::ControlWord(once_flag* flag); - std::atomic control_; -}; - -//------------------------------------------------------------------------------ -// End of public interfaces. -// Implementation details follow. -//------------------------------------------------------------------------------ - -namespace base_internal { - -// Like call_once, but uses KERNEL_ONLY scheduling. Intended to be used to -// initialize entities used by the scheduler implementation. -template -void LowLevelCallOnce(absl::once_flag* flag, Callable&& fn, Args&&... args); - -// Disables scheduling while on stack when scheduling mode is non-cooperative. -// No effect for cooperative scheduling modes. -class SchedulingHelper { - public: - explicit SchedulingHelper(base_internal::SchedulingMode mode) : mode_(mode) { - if (mode_ == base_internal::SCHEDULE_KERNEL_ONLY) { - guard_result_ = base_internal::SchedulingGuard::DisableRescheduling(); - } - } - - ~SchedulingHelper() { - if (mode_ == base_internal::SCHEDULE_KERNEL_ONLY) { - base_internal::SchedulingGuard::EnableRescheduling(guard_result_); - } - } - - private: - base_internal::SchedulingMode mode_; - bool guard_result_; -}; - -// Bit patterns for call_once state machine values. Internal implementation -// detail, not for use by clients. -// -// The bit patterns are arbitrarily chosen from unlikely values, to aid in -// debugging. However, kOnceInit must be 0, so that a zero-initialized -// once_flag will be valid for immediate use. -enum { - kOnceInit = 0, - kOnceRunning = 0x65C2937B, - kOnceWaiter = 0x05A308D2, - // A very small constant is chosen for kOnceDone so that it fit in a single - // compare with immediate instruction for most common ISAs. This is verified - // for x86, POWER and ARM. - kOnceDone = 221, // Random Number -}; - -template -ABSL_ATTRIBUTE_NOINLINE -void CallOnceImpl(std::atomic* control, - base_internal::SchedulingMode scheduling_mode, Callable&& fn, - Args&&... args) { -#ifndef NDEBUG - { - uint32_t old_control = control->load(std::memory_order_relaxed); - if (old_control != kOnceInit && - old_control != kOnceRunning && - old_control != kOnceWaiter && - old_control != kOnceDone) { - ABSL_RAW_LOG(FATAL, "Unexpected value for control word: 0x%lx", - static_cast(old_control)); // NOLINT - } - } -#endif // NDEBUG - static const base_internal::SpinLockWaitTransition trans[] = { - {kOnceInit, kOnceRunning, true}, - {kOnceRunning, kOnceWaiter, false}, - {kOnceDone, kOnceDone, true}}; - - // Must do this before potentially modifying control word's state. - base_internal::SchedulingHelper maybe_disable_scheduling(scheduling_mode); - // Short circuit the simplest case to avoid procedure call overhead. - // The base_internal::SpinLockWait() call returns either kOnceInit or - // kOnceDone. If it returns kOnceDone, it must have loaded the control word - // with std::memory_order_acquire and seen a value of kOnceDone. - uint32_t old_control = kOnceInit; - if (control->compare_exchange_strong(old_control, kOnceRunning, - std::memory_order_relaxed) || - base_internal::SpinLockWait(control, ABSL_ARRAYSIZE(trans), trans, - scheduling_mode) == kOnceInit) { - base_internal::invoke(std::forward(fn), - std::forward(args)...); - old_control = - control->exchange(base_internal::kOnceDone, std::memory_order_release); - if (old_control == base_internal::kOnceWaiter) { - base_internal::SpinLockWake(control, true); - } - } // else *control is already kOnceDone -} - -inline std::atomic* ControlWord(once_flag* flag) { - return &flag->control_; -} - -template -void LowLevelCallOnce(absl::once_flag* flag, Callable&& fn, Args&&... args) { - std::atomic* once = base_internal::ControlWord(flag); - uint32_t s = once->load(std::memory_order_acquire); - if (ABSL_PREDICT_FALSE(s != base_internal::kOnceDone)) { - base_internal::CallOnceImpl(once, base_internal::SCHEDULE_KERNEL_ONLY, - std::forward(fn), - std::forward(args)...); - } -} - -} // namespace base_internal - -template -void call_once(absl::once_flag& flag, Callable&& fn, Args&&... args) { - std::atomic* once = base_internal::ControlWord(&flag); - uint32_t s = once->load(std::memory_order_acquire); - if (ABSL_PREDICT_FALSE(s != base_internal::kOnceDone)) { - base_internal::CallOnceImpl( - once, base_internal::SCHEDULE_COOPERATIVE_AND_KERNEL, - std::forward(fn), std::forward(args)...); - } -} - -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_BASE_CALL_ONCE_H_ diff --git a/src/third_party/abseil-cpp/absl/base/call_once_test.cc b/src/third_party/abseil-cpp/absl/base/call_once_test.cc deleted file mode 100644 index 11d26c44d1..0000000000 --- a/src/third_party/abseil-cpp/absl/base/call_once_test.cc +++ /dev/null @@ -1,107 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/base/call_once.h" - -#include -#include - -#include "gtest/gtest.h" -#include "absl/base/attributes.h" -#include "absl/base/const_init.h" -#include "absl/base/thread_annotations.h" -#include "absl/synchronization/mutex.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace { - -absl::once_flag once; - -ABSL_CONST_INIT Mutex counters_mu(absl::kConstInit); - -int running_thread_count ABSL_GUARDED_BY(counters_mu) = 0; -int call_once_invoke_count ABSL_GUARDED_BY(counters_mu) = 0; -int call_once_finished_count ABSL_GUARDED_BY(counters_mu) = 0; -int call_once_return_count ABSL_GUARDED_BY(counters_mu) = 0; -bool done_blocking ABSL_GUARDED_BY(counters_mu) = false; - -// Function to be called from absl::call_once. Waits for a notification. -void WaitAndIncrement() { - counters_mu.Lock(); - ++call_once_invoke_count; - counters_mu.Unlock(); - - counters_mu.LockWhen(Condition(&done_blocking)); - ++call_once_finished_count; - counters_mu.Unlock(); -} - -void ThreadBody() { - counters_mu.Lock(); - ++running_thread_count; - counters_mu.Unlock(); - - absl::call_once(once, WaitAndIncrement); - - counters_mu.Lock(); - ++call_once_return_count; - counters_mu.Unlock(); -} - -// Returns true if all threads are set up for the test. -bool ThreadsAreSetup(void*) ABSL_EXCLUSIVE_LOCKS_REQUIRED(counters_mu) { - // All ten threads must be running, and WaitAndIncrement should be blocked. - return running_thread_count == 10 && call_once_invoke_count == 1; -} - -TEST(CallOnceTest, ExecutionCount) { - std::vector threads; - - // Start 10 threads all calling call_once on the same once_flag. - for (int i = 0; i < 10; ++i) { - threads.emplace_back(ThreadBody); - } - - - // Wait until all ten threads have started, and WaitAndIncrement has been - // invoked. - counters_mu.LockWhen(Condition(ThreadsAreSetup, nullptr)); - - // WaitAndIncrement should have been invoked by exactly one call_once() - // instance. That thread should be blocking on a notification, and all other - // call_once instances should be blocking as well. - EXPECT_EQ(call_once_invoke_count, 1); - EXPECT_EQ(call_once_finished_count, 0); - EXPECT_EQ(call_once_return_count, 0); - - // Allow WaitAndIncrement to finish executing. Once it does, the other - // call_once waiters will be unblocked. - done_blocking = true; - counters_mu.Unlock(); - - for (std::thread& thread : threads) { - thread.join(); - } - - counters_mu.Lock(); - EXPECT_EQ(call_once_invoke_count, 1); - EXPECT_EQ(call_once_finished_count, 1); - EXPECT_EQ(call_once_return_count, 10); - counters_mu.Unlock(); -} - -} // namespace -ABSL_NAMESPACE_END -} // namespace absl diff --git a/src/third_party/abseil-cpp/absl/base/casts.h b/src/third_party/abseil-cpp/absl/base/casts.h deleted file mode 100644 index b99adb0699..0000000000 --- a/src/third_party/abseil-cpp/absl/base/casts.h +++ /dev/null @@ -1,180 +0,0 @@ -// -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// ----------------------------------------------------------------------------- -// File: casts.h -// ----------------------------------------------------------------------------- -// -// This header file defines casting templates to fit use cases not covered by -// the standard casts provided in the C++ standard. As with all cast operations, -// use these with caution and only if alternatives do not exist. - -#ifndef ABSL_BASE_CASTS_H_ -#define ABSL_BASE_CASTS_H_ - -#include -#include -#include -#include - -#if defined(__cpp_lib_bit_cast) && __cpp_lib_bit_cast >= 201806L -#include // For std::bit_cast. -#endif // defined(__cpp_lib_bit_cast) && __cpp_lib_bit_cast >= 201806L - -#include "absl/base/internal/identity.h" -#include "absl/base/macros.h" -#include "absl/meta/type_traits.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN - -// implicit_cast() -// -// Performs an implicit conversion between types following the language -// rules for implicit conversion; if an implicit conversion is otherwise -// allowed by the language in the given context, this function performs such an -// implicit conversion. -// -// Example: -// -// // If the context allows implicit conversion: -// From from; -// To to = from; -// -// // Such code can be replaced by: -// implicit_cast(from); -// -// An `implicit_cast()` may also be used to annotate numeric type conversions -// that, although safe, may produce compiler warnings (such as `long` to `int`). -// Additionally, an `implicit_cast()` is also useful within return statements to -// indicate a specific implicit conversion is being undertaken. -// -// Example: -// -// return implicit_cast(size_in_bytes) / capacity_; -// -// Annotating code with `implicit_cast()` allows you to explicitly select -// particular overloads and template instantiations, while providing a safer -// cast than `reinterpret_cast()` or `static_cast()`. -// -// Additionally, an `implicit_cast()` can be used to allow upcasting within a -// type hierarchy where incorrect use of `static_cast()` could accidentally -// allow downcasting. -// -// Finally, an `implicit_cast()` can be used to perform implicit conversions -// from unrelated types that otherwise couldn't be implicitly cast directly; -// C++ will normally only implicitly cast "one step" in such conversions. -// -// That is, if C is a type which can be implicitly converted to B, with B being -// a type that can be implicitly converted to A, an `implicit_cast()` can be -// used to convert C to B (which the compiler can then implicitly convert to A -// using language rules). -// -// Example: -// -// // Assume an object C is convertible to B, which is implicitly convertible -// // to A -// A a = implicit_cast(C); -// -// Such implicit cast chaining may be useful within template logic. -template -constexpr To implicit_cast(typename absl::internal::identity_t to) { - return to; -} - -// bit_cast() -// -// Creates a value of the new type `Dest` whose representation is the same as -// that of the argument, which is of (deduced) type `Source` (a "bitwise cast"; -// every bit in the value representation of the result is equal to the -// corresponding bit in the object representation of the source). Source and -// destination types must be of the same size, and both types must be trivially -// copyable. -// -// As with most casts, use with caution. A `bit_cast()` might be needed when you -// need to treat a value as the value of some other type, for example, to access -// the individual bits of an object which are not normally accessible through -// the object's type, such as for working with the binary representation of a -// floating point value: -// -// float f = 3.14159265358979; -// int i = bit_cast(f); -// // i = 0x40490fdb -// -// Reinterpreting and accessing a value directly as a different type (as shown -// below) usually results in undefined behavior. -// -// Example: -// -// // WRONG -// float f = 3.14159265358979; -// int i = reinterpret_cast(f); // Wrong -// int j = *reinterpret_cast(&f); // Equally wrong -// int k = *bit_cast(&f); // Equally wrong -// -// Reinterpret-casting results in undefined behavior according to the ISO C++ -// specification, section [basic.lval]. Roughly, this section says: if an object -// in memory has one type, and a program accesses it with a different type, the -// result is undefined behavior for most "different type". -// -// Using bit_cast on a pointer and then dereferencing it is no better than using -// reinterpret_cast. You should only use bit_cast on the value itself. -// -// Such casting results in type punning: holding an object in memory of one type -// and reading its bits back using a different type. A `bit_cast()` avoids this -// issue by copying the object representation to a new value, which avoids -// introducing this undefined behavior (since the original value is never -// accessed in the wrong way). -// -// The requirements of `absl::bit_cast` are more strict than that of -// `std::bit_cast` unless compiler support is available. Specifically, without -// compiler support, this implementation also requires `Dest` to be -// default-constructible. In C++20, `absl::bit_cast` is replaced by -// `std::bit_cast`. -#if defined(__cpp_lib_bit_cast) && __cpp_lib_bit_cast >= 201806L - -using std::bit_cast; - -#else // defined(__cpp_lib_bit_cast) && __cpp_lib_bit_cast >= 201806L - -template ::value && - type_traits_internal::is_trivially_copyable::value -#if !ABSL_HAVE_BUILTIN(__builtin_bit_cast) - && std::is_default_constructible::value -#endif // !ABSL_HAVE_BUILTIN(__builtin_bit_cast) - , - int>::type = 0> -#if ABSL_HAVE_BUILTIN(__builtin_bit_cast) -inline constexpr Dest bit_cast(const Source& source) { - return __builtin_bit_cast(Dest, source); -} -#else // ABSL_HAVE_BUILTIN(__builtin_bit_cast) -inline Dest bit_cast(const Source& source) { - Dest dest; - memcpy(static_cast(std::addressof(dest)), - static_cast(std::addressof(source)), sizeof(dest)); - return dest; -} -#endif // ABSL_HAVE_BUILTIN(__builtin_bit_cast) - -#endif // defined(__cpp_lib_bit_cast) && __cpp_lib_bit_cast >= 201806L - -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_BASE_CASTS_H_ diff --git a/src/third_party/abseil-cpp/absl/base/config.h b/src/third_party/abseil-cpp/absl/base/config.h deleted file mode 100644 index 0631ab6099..0000000000 --- a/src/third_party/abseil-cpp/absl/base/config.h +++ /dev/null @@ -1,954 +0,0 @@ -// -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// ----------------------------------------------------------------------------- -// File: config.h -// ----------------------------------------------------------------------------- -// -// This header file defines a set of macros for checking the presence of -// important compiler and platform features. Such macros can be used to -// produce portable code by parameterizing compilation based on the presence or -// lack of a given feature. -// -// We define a "feature" as some interface we wish to program to: for example, -// a library function or system call. A value of `1` indicates support for -// that feature; any other value indicates the feature support is undefined. -// -// Example: -// -// Suppose a programmer wants to write a program that uses the 'mmap()' system -// call. The Abseil macro for that feature (`ABSL_HAVE_MMAP`) allows you to -// selectively include the `mmap.h` header and bracket code using that feature -// in the macro: -// -// #include "absl/base/config.h" -// -// #ifdef ABSL_HAVE_MMAP -// #include "sys/mman.h" -// #endif //ABSL_HAVE_MMAP -// -// ... -// #ifdef ABSL_HAVE_MMAP -// void *ptr = mmap(...); -// ... -// #endif // ABSL_HAVE_MMAP - -#ifndef ABSL_BASE_CONFIG_H_ -#define ABSL_BASE_CONFIG_H_ - -// Included for the __GLIBC__ macro (or similar macros on other systems). -#include - -#ifdef __cplusplus -// Included for __GLIBCXX__, _LIBCPP_VERSION -#include -#endif // __cplusplus - -// ABSL_INTERNAL_CPLUSPLUS_LANG -// -// MSVC does not set the value of __cplusplus correctly, but instead uses -// _MSVC_LANG as a stand-in. -// https://docs.microsoft.com/en-us/cpp/preprocessor/predefined-macros -// -// However, there are reports that MSVC even sets _MSVC_LANG incorrectly at -// times, for example: -// https://github.com/microsoft/vscode-cpptools/issues/1770 -// https://reviews.llvm.org/D70996 -// -// For this reason, this symbol is considered INTERNAL and code outside of -// Abseil must not use it. -#if defined(_MSVC_LANG) -#define ABSL_INTERNAL_CPLUSPLUS_LANG _MSVC_LANG -#elif defined(__cplusplus) -#define ABSL_INTERNAL_CPLUSPLUS_LANG __cplusplus -#endif - -#if defined(__APPLE__) -// Included for TARGET_OS_IPHONE, __IPHONE_OS_VERSION_MIN_REQUIRED, -// __IPHONE_8_0. -#include -#include -#endif - -#include "absl/base/options.h" -#include "absl/base/policy_checks.h" - -// Abseil long-term support (LTS) releases will define -// `ABSL_LTS_RELEASE_VERSION` to the integer representing the date string of the -// LTS release version, and will define `ABSL_LTS_RELEASE_PATCH_LEVEL` to the -// integer representing the patch-level for that release. -// -// For example, for LTS release version "20300401.2", this would give us -// ABSL_LTS_RELEASE_VERSION == 20300401 && ABSL_LTS_RELEASE_PATCH_LEVEL == 2 -// -// These symbols will not be defined in non-LTS code. -// -// Abseil recommends that clients live-at-head. Therefore, if you are using -// these symbols to assert a minimum version requirement, we recommend you do it -// as -// -// #if defined(ABSL_LTS_RELEASE_VERSION) && ABSL_LTS_RELEASE_VERSION < 20300401 -// #error Project foo requires Abseil LTS version >= 20300401 -// #endif -// -// The `defined(ABSL_LTS_RELEASE_VERSION)` part of the check excludes -// live-at-head clients from the minimum version assertion. -// -// See https://abseil.io/about/releases for more information on Abseil release -// management. -// -// LTS releases can be obtained from -// https://github.com/abseil/abseil-cpp/releases. -#define ABSL_LTS_RELEASE_VERSION 20230125 -#define ABSL_LTS_RELEASE_PATCH_LEVEL 2 - -// Helper macro to convert a CPP variable to a string literal. -#define ABSL_INTERNAL_DO_TOKEN_STR(x) #x -#define ABSL_INTERNAL_TOKEN_STR(x) ABSL_INTERNAL_DO_TOKEN_STR(x) - -// ----------------------------------------------------------------------------- -// Abseil namespace annotations -// ----------------------------------------------------------------------------- - -// ABSL_NAMESPACE_BEGIN/ABSL_NAMESPACE_END -// -// An annotation placed at the beginning/end of each `namespace absl` scope. -// This is used to inject an inline namespace. -// -// The proper way to write Abseil code in the `absl` namespace is: -// -// namespace absl { -// ABSL_NAMESPACE_BEGIN -// -// void Foo(); // absl::Foo(). -// -// ABSL_NAMESPACE_END -// } // namespace absl -// -// Users of Abseil should not use these macros, because users of Abseil should -// not write `namespace absl {` in their own code for any reason. (Abseil does -// not support forward declarations of its own types, nor does it support -// user-provided specialization of Abseil templates. Code that violates these -// rules may be broken without warning.) -#if !defined(ABSL_OPTION_USE_INLINE_NAMESPACE) || \ - !defined(ABSL_OPTION_INLINE_NAMESPACE_NAME) -#error options.h is misconfigured. -#endif - -// Check that ABSL_OPTION_INLINE_NAMESPACE_NAME is neither "head" nor "" -#if defined(__cplusplus) && ABSL_OPTION_USE_INLINE_NAMESPACE == 1 - -#define ABSL_INTERNAL_INLINE_NAMESPACE_STR \ - ABSL_INTERNAL_TOKEN_STR(ABSL_OPTION_INLINE_NAMESPACE_NAME) - -static_assert(ABSL_INTERNAL_INLINE_NAMESPACE_STR[0] != '\0', - "options.h misconfigured: ABSL_OPTION_INLINE_NAMESPACE_NAME must " - "not be empty."); -static_assert(ABSL_INTERNAL_INLINE_NAMESPACE_STR[0] != 'h' || - ABSL_INTERNAL_INLINE_NAMESPACE_STR[1] != 'e' || - ABSL_INTERNAL_INLINE_NAMESPACE_STR[2] != 'a' || - ABSL_INTERNAL_INLINE_NAMESPACE_STR[3] != 'd' || - ABSL_INTERNAL_INLINE_NAMESPACE_STR[4] != '\0', - "options.h misconfigured: ABSL_OPTION_INLINE_NAMESPACE_NAME must " - "be changed to a new, unique identifier name."); - -#endif - -#if ABSL_OPTION_USE_INLINE_NAMESPACE == 0 -#define ABSL_NAMESPACE_BEGIN -#define ABSL_NAMESPACE_END -#define ABSL_INTERNAL_C_SYMBOL(x) x -#elif ABSL_OPTION_USE_INLINE_NAMESPACE == 1 -#define ABSL_NAMESPACE_BEGIN \ - inline namespace ABSL_OPTION_INLINE_NAMESPACE_NAME { -#define ABSL_NAMESPACE_END } -#define ABSL_INTERNAL_C_SYMBOL_HELPER_2(x, v) x##_##v -#define ABSL_INTERNAL_C_SYMBOL_HELPER_1(x, v) \ - ABSL_INTERNAL_C_SYMBOL_HELPER_2(x, v) -#define ABSL_INTERNAL_C_SYMBOL(x) \ - ABSL_INTERNAL_C_SYMBOL_HELPER_1(x, ABSL_OPTION_INLINE_NAMESPACE_NAME) -#else -#error options.h is misconfigured. -#endif - -// ----------------------------------------------------------------------------- -// Compiler Feature Checks -// ----------------------------------------------------------------------------- - -// ABSL_HAVE_BUILTIN() -// -// Checks whether the compiler supports a Clang Feature Checking Macro, and if -// so, checks whether it supports the provided builtin function "x" where x -// is one of the functions noted in -// https://clang.llvm.org/docs/LanguageExtensions.html -// -// Note: Use this macro to avoid an extra level of #ifdef __has_builtin check. -// http://releases.llvm.org/3.3/tools/clang/docs/LanguageExtensions.html -#ifdef __has_builtin -#define ABSL_HAVE_BUILTIN(x) __has_builtin(x) -#else -#define ABSL_HAVE_BUILTIN(x) 0 -#endif - -#ifdef __has_feature -#define ABSL_HAVE_FEATURE(f) __has_feature(f) -#else -#define ABSL_HAVE_FEATURE(f) 0 -#endif - -// Portable check for GCC minimum version: -// https://gcc.gnu.org/onlinedocs/cpp/Common-Predefined-Macros.html -#if defined(__GNUC__) && defined(__GNUC_MINOR__) -#define ABSL_INTERNAL_HAVE_MIN_GNUC_VERSION(x, y) \ - (__GNUC__ > (x) || __GNUC__ == (x) && __GNUC_MINOR__ >= (y)) -#else -#define ABSL_INTERNAL_HAVE_MIN_GNUC_VERSION(x, y) 0 -#endif - -#if defined(__clang__) && defined(__clang_major__) && defined(__clang_minor__) -#define ABSL_INTERNAL_HAVE_MIN_CLANG_VERSION(x, y) \ - (__clang_major__ > (x) || __clang_major__ == (x) && __clang_minor__ >= (y)) -#else -#define ABSL_INTERNAL_HAVE_MIN_CLANG_VERSION(x, y) 0 -#endif - -// ABSL_HAVE_TLS is defined to 1 when __thread should be supported. -// We assume __thread is supported on Linux or Asylo when compiled with Clang or -// compiled against libstdc++ with _GLIBCXX_HAVE_TLS defined. -#ifdef ABSL_HAVE_TLS -#error ABSL_HAVE_TLS cannot be directly set -#elif (defined(__linux__) || defined(__ASYLO__)) && \ - (defined(__clang__) || defined(_GLIBCXX_HAVE_TLS)) -#define ABSL_HAVE_TLS 1 -#endif - -// ABSL_HAVE_STD_IS_TRIVIALLY_DESTRUCTIBLE -// -// Checks whether `std::is_trivially_destructible` is supported. -// -// Notes: All supported compilers using libc++ support this feature, as does -// gcc >= 4.8.1 using libstdc++, and Visual Studio. -#ifdef ABSL_HAVE_STD_IS_TRIVIALLY_DESTRUCTIBLE -#error ABSL_HAVE_STD_IS_TRIVIALLY_DESTRUCTIBLE cannot be directly set -#elif defined(_LIBCPP_VERSION) || defined(_MSC_VER) || \ - (defined(__clang__) && __clang_major__ >= 15) || \ - (!defined(__clang__) && defined(__GLIBCXX__) && \ - ABSL_INTERNAL_HAVE_MIN_GNUC_VERSION(4, 8)) -#define ABSL_HAVE_STD_IS_TRIVIALLY_DESTRUCTIBLE 1 -#endif - -// ABSL_HAVE_STD_IS_TRIVIALLY_CONSTRUCTIBLE -// -// Checks whether `std::is_trivially_default_constructible` and -// `std::is_trivially_copy_constructible` are supported. - -// ABSL_HAVE_STD_IS_TRIVIALLY_ASSIGNABLE -// -// Checks whether `std::is_trivially_copy_assignable` is supported. - -// Notes: Clang with libc++ supports these features, as does gcc >= 7.4 with -// libstdc++, or gcc >= 8.2 with libc++, and Visual Studio (but not NVCC). -#if defined(ABSL_HAVE_STD_IS_TRIVIALLY_CONSTRUCTIBLE) -#error ABSL_HAVE_STD_IS_TRIVIALLY_CONSTRUCTIBLE cannot be directly set -#elif defined(ABSL_HAVE_STD_IS_TRIVIALLY_ASSIGNABLE) -#error ABSL_HAVE_STD_IS_TRIVIALLY_ASSIGNABLE cannot directly set -#elif (defined(__clang__) && defined(_LIBCPP_VERSION)) || \ - (defined(__clang__) && __clang_major__ >= 15) || \ - (!defined(__clang__) && \ - ((ABSL_INTERNAL_HAVE_MIN_GNUC_VERSION(7, 4) && defined(__GLIBCXX__)) || \ - (ABSL_INTERNAL_HAVE_MIN_GNUC_VERSION(8, 2) && \ - defined(_LIBCPP_VERSION)))) || \ - (defined(_MSC_VER) && !defined(__NVCC__) && !defined(__clang__)) -#define ABSL_HAVE_STD_IS_TRIVIALLY_CONSTRUCTIBLE 1 -#define ABSL_HAVE_STD_IS_TRIVIALLY_ASSIGNABLE 1 -#endif - -// ABSL_HAVE_STD_IS_TRIVIALLY_COPYABLE -// -// Checks whether `std::is_trivially_copyable` is supported. -// -// Notes: Clang 15+ with libc++ supports these features, GCC hasn't been tested. -#if defined(ABSL_HAVE_STD_IS_TRIVIALLY_COPYABLE) -#error ABSL_HAVE_STD_IS_TRIVIALLY_COPYABLE cannot be directly set -#elif defined(__clang__) && (__clang_major__ >= 15) -#define ABSL_HAVE_STD_IS_TRIVIALLY_COPYABLE 1 -#endif - -// ABSL_HAVE_THREAD_LOCAL -// -// Checks whether C++11's `thread_local` storage duration specifier is -// supported. -#ifdef ABSL_HAVE_THREAD_LOCAL -#error ABSL_HAVE_THREAD_LOCAL cannot be directly set -#elif defined(__APPLE__) -// Notes: -// * Xcode's clang did not support `thread_local` until version 8, and -// even then not for all iOS < 9.0. -// * Xcode 9.3 started disallowing `thread_local` for 32-bit iOS simulator -// targeting iOS 9.x. -// * Xcode 10 moves the deployment target check for iOS < 9.0 to link time -// making ABSL_HAVE_FEATURE unreliable there. -// -#if ABSL_HAVE_FEATURE(cxx_thread_local) && \ - !(TARGET_OS_IPHONE && __IPHONE_OS_VERSION_MIN_REQUIRED < __IPHONE_9_0) -#define ABSL_HAVE_THREAD_LOCAL 1 -#endif -#else // !defined(__APPLE__) -#define ABSL_HAVE_THREAD_LOCAL 1 -#endif - -// There are platforms for which TLS should not be used even though the compiler -// makes it seem like it's supported (Android NDK < r12b for example). -// This is primarily because of linker problems and toolchain misconfiguration: -// Abseil does not intend to support this indefinitely. Currently, the newest -// toolchain that we intend to support that requires this behavior is the -// r11 NDK - allowing for a 5 year support window on that means this option -// is likely to be removed around June of 2021. -// TLS isn't supported until NDK r12b per -// https://developer.android.com/ndk/downloads/revision_history.html -// Since NDK r16, `__NDK_MAJOR__` and `__NDK_MINOR__` are defined in -// . For NDK < r16, users should define these macros, -// e.g. `-D__NDK_MAJOR__=11 -D__NKD_MINOR__=0` for NDK r11. -#if defined(__ANDROID__) && defined(__clang__) -#if __has_include() -#include -#endif // __has_include() -#if defined(__ANDROID__) && defined(__clang__) && defined(__NDK_MAJOR__) && \ - defined(__NDK_MINOR__) && \ - ((__NDK_MAJOR__ < 12) || ((__NDK_MAJOR__ == 12) && (__NDK_MINOR__ < 1))) -#undef ABSL_HAVE_TLS -#undef ABSL_HAVE_THREAD_LOCAL -#endif -#endif // defined(__ANDROID__) && defined(__clang__) - -// ABSL_HAVE_INTRINSIC_INT128 -// -// Checks whether the __int128 compiler extension for a 128-bit integral type is -// supported. -// -// Note: __SIZEOF_INT128__ is defined by Clang and GCC when __int128 is -// supported, but we avoid using it in certain cases: -// * On Clang: -// * Building using Clang for Windows, where the Clang runtime library has -// 128-bit support only on LP64 architectures, but Windows is LLP64. -// * On Nvidia's nvcc: -// * nvcc also defines __GNUC__ and __SIZEOF_INT128__, but not all versions -// actually support __int128. -#ifdef ABSL_HAVE_INTRINSIC_INT128 -#error ABSL_HAVE_INTRINSIC_INT128 cannot be directly set -#elif defined(__SIZEOF_INT128__) -#if (defined(__clang__) && !defined(_WIN32)) || \ - (defined(__CUDACC__) && __CUDACC_VER_MAJOR__ >= 9) || \ - (defined(__GNUC__) && !defined(__clang__) && !defined(__CUDACC__)) -#define ABSL_HAVE_INTRINSIC_INT128 1 -#elif defined(__CUDACC__) -// __CUDACC_VER__ is a full version number before CUDA 9, and is defined to a -// string explaining that it has been removed starting with CUDA 9. We use -// nested #ifs because there is no short-circuiting in the preprocessor. -// NOTE: `__CUDACC__` could be undefined while `__CUDACC_VER__` is defined. -#if __CUDACC_VER__ >= 70000 -#define ABSL_HAVE_INTRINSIC_INT128 1 -#endif // __CUDACC_VER__ >= 70000 -#endif // defined(__CUDACC__) -#endif // ABSL_HAVE_INTRINSIC_INT128 - -// ABSL_HAVE_EXCEPTIONS -// -// Checks whether the compiler both supports and enables exceptions. Many -// compilers support a "no exceptions" mode that disables exceptions. -// -// Generally, when ABSL_HAVE_EXCEPTIONS is not defined: -// -// * Code using `throw` and `try` may not compile. -// * The `noexcept` specifier will still compile and behave as normal. -// * The `noexcept` operator may still return `false`. -// -// For further details, consult the compiler's documentation. -#ifdef ABSL_HAVE_EXCEPTIONS -#error ABSL_HAVE_EXCEPTIONS cannot be directly set. -#elif ABSL_INTERNAL_HAVE_MIN_CLANG_VERSION(3, 6) -// Clang >= 3.6 -#if ABSL_HAVE_FEATURE(cxx_exceptions) -#define ABSL_HAVE_EXCEPTIONS 1 -#endif // ABSL_HAVE_FEATURE(cxx_exceptions) -#elif defined(__clang__) -// Clang < 3.6 -// http://releases.llvm.org/3.6.0/tools/clang/docs/ReleaseNotes.html#the-exceptions-macro -#if defined(__EXCEPTIONS) && ABSL_HAVE_FEATURE(cxx_exceptions) -#define ABSL_HAVE_EXCEPTIONS 1 -#endif // defined(__EXCEPTIONS) && ABSL_HAVE_FEATURE(cxx_exceptions) -// Handle remaining special cases and default to exceptions being supported. -#elif !(defined(__GNUC__) && (__GNUC__ < 5) && !defined(__EXCEPTIONS)) && \ - !(ABSL_INTERNAL_HAVE_MIN_GNUC_VERSION(5, 0) && \ - !defined(__cpp_exceptions)) && \ - !(defined(_MSC_VER) && !defined(_CPPUNWIND)) -#define ABSL_HAVE_EXCEPTIONS 1 -#endif - -// ----------------------------------------------------------------------------- -// Platform Feature Checks -// ----------------------------------------------------------------------------- - -// Currently supported operating systems and associated preprocessor -// symbols: -// -// Linux and Linux-derived __linux__ -// Android __ANDROID__ (implies __linux__) -// Linux (non-Android) __linux__ && !__ANDROID__ -// Darwin (macOS and iOS) __APPLE__ -// Akaros (http://akaros.org) __ros__ -// Windows _WIN32 -// NaCL __native_client__ -// AsmJS __asmjs__ -// WebAssembly __wasm__ -// Fuchsia __Fuchsia__ -// -// Note that since Android defines both __ANDROID__ and __linux__, one -// may probe for either Linux or Android by simply testing for __linux__. - -// ABSL_HAVE_MMAP -// -// Checks whether the platform has an mmap(2) implementation as defined in -// POSIX.1-2001. -#ifdef ABSL_HAVE_MMAP -#error ABSL_HAVE_MMAP cannot be directly set -#elif defined(__linux__) || defined(__APPLE__) || defined(__FreeBSD__) || \ - defined(_AIX) || defined(__ros__) || defined(__native_client__) || \ - defined(__asmjs__) || defined(__wasm__) || defined(__Fuchsia__) || \ - defined(__sun) || defined(__ASYLO__) || defined(__myriad2__) || \ - defined(__HAIKU__) || defined(__OpenBSD__) || defined(__NetBSD__) || \ - defined(__QNX__) -#define ABSL_HAVE_MMAP 1 -#endif - -// ABSL_HAVE_PTHREAD_GETSCHEDPARAM -// -// Checks whether the platform implements the pthread_(get|set)schedparam(3) -// functions as defined in POSIX.1-2001. -#ifdef ABSL_HAVE_PTHREAD_GETSCHEDPARAM -#error ABSL_HAVE_PTHREAD_GETSCHEDPARAM cannot be directly set -#elif defined(__linux__) || defined(__APPLE__) || defined(__FreeBSD__) || \ - defined(_AIX) || defined(__ros__) || defined(__OpenBSD__) || \ - defined(__NetBSD__) -#define ABSL_HAVE_PTHREAD_GETSCHEDPARAM 1 -#endif - -// ABSL_HAVE_SCHED_GETCPU -// -// Checks whether sched_getcpu is available. -#ifdef ABSL_HAVE_SCHED_GETCPU -#error ABSL_HAVE_SCHED_GETCPU cannot be directly set -#elif defined(__linux__) -#define ABSL_HAVE_SCHED_GETCPU 1 -#endif - -// ABSL_HAVE_SCHED_YIELD -// -// Checks whether the platform implements sched_yield(2) as defined in -// POSIX.1-2001. -#ifdef ABSL_HAVE_SCHED_YIELD -#error ABSL_HAVE_SCHED_YIELD cannot be directly set -#elif defined(__linux__) || defined(__ros__) || defined(__native_client__) -#define ABSL_HAVE_SCHED_YIELD 1 -#endif - -// ABSL_HAVE_SEMAPHORE_H -// -// Checks whether the platform supports the header and sem_init(3) -// family of functions as standardized in POSIX.1-2001. -// -// Note: While Apple provides for both iOS and macOS, it is -// explicitly deprecated and will cause build failures if enabled for those -// platforms. We side-step the issue by not defining it here for Apple -// platforms. -#ifdef ABSL_HAVE_SEMAPHORE_H -#error ABSL_HAVE_SEMAPHORE_H cannot be directly set -#elif defined(__linux__) || defined(__ros__) -#define ABSL_HAVE_SEMAPHORE_H 1 -#endif - -// ABSL_HAVE_ALARM -// -// Checks whether the platform supports the header and alarm(2) -// function as standardized in POSIX.1-2001. -#ifdef ABSL_HAVE_ALARM -#error ABSL_HAVE_ALARM cannot be directly set -#elif defined(__GOOGLE_GRTE_VERSION__) -// feature tests for Google's GRTE -#define ABSL_HAVE_ALARM 1 -#elif defined(__GLIBC__) -// feature test for glibc -#define ABSL_HAVE_ALARM 1 -#elif defined(_MSC_VER) -// feature tests for Microsoft's library -#elif defined(__MINGW32__) -// mingw32 doesn't provide alarm(2): -// https://osdn.net/projects/mingw/scm/git/mingw-org-wsl/blobs/5.2-trunk/mingwrt/include/unistd.h -// mingw-w64 provides a no-op implementation: -// https://sourceforge.net/p/mingw-w64/mingw-w64/ci/master/tree/mingw-w64-crt/misc/alarm.c -#elif defined(__EMSCRIPTEN__) -// emscripten doesn't support signals -#elif defined(__Fuchsia__) -// Signals don't exist on fuchsia. -#elif defined(__native_client__) -#else -// other standard libraries -#define ABSL_HAVE_ALARM 1 -#endif - -// ABSL_IS_LITTLE_ENDIAN -// ABSL_IS_BIG_ENDIAN -// -// Checks the endianness of the platform. -// -// Notes: uses the built in endian macros provided by GCC (since 4.6) and -// Clang (since 3.2); see -// https://gcc.gnu.org/onlinedocs/cpp/Common-Predefined-Macros.html. -// Otherwise, if _WIN32, assume little endian. Otherwise, bail with an error. -#if defined(ABSL_IS_BIG_ENDIAN) -#error "ABSL_IS_BIG_ENDIAN cannot be directly set." -#endif -#if defined(ABSL_IS_LITTLE_ENDIAN) -#error "ABSL_IS_LITTLE_ENDIAN cannot be directly set." -#endif - -#if (defined(__BYTE_ORDER__) && defined(__ORDER_LITTLE_ENDIAN__) && \ - __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) -#define ABSL_IS_LITTLE_ENDIAN 1 -#elif defined(__BYTE_ORDER__) && defined(__ORDER_BIG_ENDIAN__) && \ - __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ -#define ABSL_IS_BIG_ENDIAN 1 -#elif defined(_WIN32) -#define ABSL_IS_LITTLE_ENDIAN 1 -#else -#error "absl endian detection needs to be set up for your compiler" -#endif - -// macOS < 10.13 and iOS < 11 don't let you use , , or -// even though the headers exist and are publicly noted to work, because the -// libc++ shared library shipped on the system doesn't have the requisite -// exported symbols. See https://github.com/abseil/abseil-cpp/issues/207 and -// https://developer.apple.com/documentation/xcode_release_notes/xcode_10_release_notes -// -// libc++ spells out the availability requirements in the file -// llvm-project/libcxx/include/__config via the #define -// _LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS. -// -// Unfortunately, Apple initially mis-stated the requirements as macOS < 10.14 -// and iOS < 12 in the libc++ headers. This was corrected by -// https://github.com/llvm/llvm-project/commit/7fb40e1569dd66292b647f4501b85517e9247953 -// which subsequently made it into the XCode 12.5 release. We need to match the -// old (incorrect) conditions when built with old XCode, but can use the -// corrected earlier versions with new XCode. -#if defined(__APPLE__) && defined(_LIBCPP_VERSION) && \ - ((_LIBCPP_VERSION >= 11000 && /* XCode 12.5 or later: */ \ - ((defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && \ - __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ < 101300) || \ - (defined(__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__) && \ - __ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__ < 110000) || \ - (defined(__ENVIRONMENT_WATCH_OS_VERSION_MIN_REQUIRED__) && \ - __ENVIRONMENT_WATCH_OS_VERSION_MIN_REQUIRED__ < 40000) || \ - (defined(__ENVIRONMENT_TV_OS_VERSION_MIN_REQUIRED__) && \ - __ENVIRONMENT_TV_OS_VERSION_MIN_REQUIRED__ < 110000))) || \ - (_LIBCPP_VERSION < 11000 && /* Pre-XCode 12.5: */ \ - ((defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && \ - __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ < 101400) || \ - (defined(__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__) && \ - __ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__ < 120000) || \ - (defined(__ENVIRONMENT_WATCH_OS_VERSION_MIN_REQUIRED__) && \ - __ENVIRONMENT_WATCH_OS_VERSION_MIN_REQUIRED__ < 50000) || \ - (defined(__ENVIRONMENT_TV_OS_VERSION_MIN_REQUIRED__) && \ - __ENVIRONMENT_TV_OS_VERSION_MIN_REQUIRED__ < 120000)))) -#define ABSL_INTERNAL_APPLE_CXX17_TYPES_UNAVAILABLE 1 -#else -#define ABSL_INTERNAL_APPLE_CXX17_TYPES_UNAVAILABLE 0 -#endif - -// ABSL_HAVE_STD_ANY -// -// Checks whether C++17 std::any is available by checking whether exists. -#ifdef ABSL_HAVE_STD_ANY -#error "ABSL_HAVE_STD_ANY cannot be directly set." -#endif - -#ifdef __has_include -#if __has_include() && defined(__cplusplus) && __cplusplus >= 201703L && \ - !ABSL_INTERNAL_APPLE_CXX17_TYPES_UNAVAILABLE -#define ABSL_HAVE_STD_ANY 1 -#endif -#endif - -// ABSL_HAVE_STD_OPTIONAL -// -// Checks whether C++17 std::optional is available. -#ifdef ABSL_HAVE_STD_OPTIONAL -#error "ABSL_HAVE_STD_OPTIONAL cannot be directly set." -#endif - -#ifdef __has_include -#if __has_include() && defined(__cplusplus) && \ - __cplusplus >= 201703L && !ABSL_INTERNAL_APPLE_CXX17_TYPES_UNAVAILABLE -#define ABSL_HAVE_STD_OPTIONAL 1 -#endif -#endif - -// ABSL_HAVE_STD_VARIANT -// -// Checks whether C++17 std::variant is available. -#ifdef ABSL_HAVE_STD_VARIANT -#error "ABSL_HAVE_STD_VARIANT cannot be directly set." -#endif - -#ifdef __has_include -#if __has_include() && defined(__cplusplus) && \ - __cplusplus >= 201703L && !ABSL_INTERNAL_APPLE_CXX17_TYPES_UNAVAILABLE -#define ABSL_HAVE_STD_VARIANT 1 -#endif -#endif - -// ABSL_HAVE_STD_STRING_VIEW -// -// Checks whether C++17 std::string_view is available. -#ifdef ABSL_HAVE_STD_STRING_VIEW -#error "ABSL_HAVE_STD_STRING_VIEW cannot be directly set." -#endif - -#ifdef __has_include -#if __has_include() && defined(__cplusplus) && \ - __cplusplus >= 201703L -#define ABSL_HAVE_STD_STRING_VIEW 1 -#endif -#endif - -// For MSVC, `__has_include` is supported in VS 2017 15.3, which is later than -// the support for , , , . So we use -// _MSC_VER to check whether we have VS 2017 RTM (when , , -// , is implemented) or higher. Also, `__cplusplus` is -// not correctly set by MSVC, so we use `_MSVC_LANG` to check the language -// version. -// TODO(zhangxy): fix tests before enabling aliasing for `std::any`. -#if defined(_MSC_VER) && _MSC_VER >= 1910 && \ - ((defined(_MSVC_LANG) && _MSVC_LANG > 201402) || \ - (defined(__cplusplus) && __cplusplus > 201402)) -// #define ABSL_HAVE_STD_ANY 1 -#define ABSL_HAVE_STD_OPTIONAL 1 -#define ABSL_HAVE_STD_VARIANT 1 -#define ABSL_HAVE_STD_STRING_VIEW 1 -#endif - -// ABSL_USES_STD_ANY -// -// Indicates whether absl::any is an alias for std::any. -#if !defined(ABSL_OPTION_USE_STD_ANY) -#error options.h is misconfigured. -#elif ABSL_OPTION_USE_STD_ANY == 0 || \ - (ABSL_OPTION_USE_STD_ANY == 2 && !defined(ABSL_HAVE_STD_ANY)) -#undef ABSL_USES_STD_ANY -#elif ABSL_OPTION_USE_STD_ANY == 1 || \ - (ABSL_OPTION_USE_STD_ANY == 2 && defined(ABSL_HAVE_STD_ANY)) -#define ABSL_USES_STD_ANY 1 -#else -#error options.h is misconfigured. -#endif - -// ABSL_USES_STD_OPTIONAL -// -// Indicates whether absl::optional is an alias for std::optional. -#if !defined(ABSL_OPTION_USE_STD_OPTIONAL) -#error options.h is misconfigured. -#elif ABSL_OPTION_USE_STD_OPTIONAL == 0 || \ - (ABSL_OPTION_USE_STD_OPTIONAL == 2 && !defined(ABSL_HAVE_STD_OPTIONAL)) -#undef ABSL_USES_STD_OPTIONAL -#elif ABSL_OPTION_USE_STD_OPTIONAL == 1 || \ - (ABSL_OPTION_USE_STD_OPTIONAL == 2 && defined(ABSL_HAVE_STD_OPTIONAL)) -#define ABSL_USES_STD_OPTIONAL 1 -#else -#error options.h is misconfigured. -#endif - -// ABSL_USES_STD_VARIANT -// -// Indicates whether absl::variant is an alias for std::variant. -#if !defined(ABSL_OPTION_USE_STD_VARIANT) -#error options.h is misconfigured. -#elif ABSL_OPTION_USE_STD_VARIANT == 0 || \ - (ABSL_OPTION_USE_STD_VARIANT == 2 && !defined(ABSL_HAVE_STD_VARIANT)) -#undef ABSL_USES_STD_VARIANT -#elif ABSL_OPTION_USE_STD_VARIANT == 1 || \ - (ABSL_OPTION_USE_STD_VARIANT == 2 && defined(ABSL_HAVE_STD_VARIANT)) -#define ABSL_USES_STD_VARIANT 1 -#else -#error options.h is misconfigured. -#endif - -// ABSL_USES_STD_STRING_VIEW -// -// Indicates whether absl::string_view is an alias for std::string_view. -#if !defined(ABSL_OPTION_USE_STD_STRING_VIEW) -#error options.h is misconfigured. -#elif ABSL_OPTION_USE_STD_STRING_VIEW == 0 || \ - (ABSL_OPTION_USE_STD_STRING_VIEW == 2 && \ - !defined(ABSL_HAVE_STD_STRING_VIEW)) -#undef ABSL_USES_STD_STRING_VIEW -#elif ABSL_OPTION_USE_STD_STRING_VIEW == 1 || \ - (ABSL_OPTION_USE_STD_STRING_VIEW == 2 && \ - defined(ABSL_HAVE_STD_STRING_VIEW)) -#define ABSL_USES_STD_STRING_VIEW 1 -#else -#error options.h is misconfigured. -#endif - -// In debug mode, MSVC 2017's std::variant throws a EXCEPTION_ACCESS_VIOLATION -// SEH exception from emplace for variant when constructing the -// struct can throw. This defeats some of variant_test and -// variant_exception_safety_test. -#if defined(_MSC_VER) && _MSC_VER >= 1700 && defined(_DEBUG) -#define ABSL_INTERNAL_MSVC_2017_DBG_MODE -#endif - -// ABSL_INTERNAL_MANGLED_NS -// ABSL_INTERNAL_MANGLED_BACKREFERENCE -// -// Internal macros for building up mangled names in our internal fork of CCTZ. -// This implementation detail is only needed and provided for the MSVC build. -// -// These macros both expand to string literals. ABSL_INTERNAL_MANGLED_NS is -// the mangled spelling of the `absl` namespace, and -// ABSL_INTERNAL_MANGLED_BACKREFERENCE is a back-reference integer representing -// the proper count to skip past the CCTZ fork namespace names. (This number -// is one larger when there is an inline namespace name to skip.) -#if defined(_MSC_VER) -#if ABSL_OPTION_USE_INLINE_NAMESPACE == 0 -#define ABSL_INTERNAL_MANGLED_NS "absl" -#define ABSL_INTERNAL_MANGLED_BACKREFERENCE "5" -#else -#define ABSL_INTERNAL_MANGLED_NS \ - ABSL_INTERNAL_TOKEN_STR(ABSL_OPTION_INLINE_NAMESPACE_NAME) "@absl" -#define ABSL_INTERNAL_MANGLED_BACKREFERENCE "6" -#endif -#endif - -// ABSL_DLL -// -// When building Abseil as a DLL, this macro expands to `__declspec(dllexport)` -// so we can annotate symbols appropriately as being exported. When used in -// headers consuming a DLL, this macro expands to `__declspec(dllimport)` so -// that consumers know the symbol is defined inside the DLL. In all other cases, -// the macro expands to nothing. -#if defined(_MSC_VER) -#if defined(ABSL_BUILD_DLL) -#define ABSL_DLL __declspec(dllexport) -#elif defined(ABSL_CONSUME_DLL) -#define ABSL_DLL __declspec(dllimport) -#else -#define ABSL_DLL -#endif -#else -#define ABSL_DLL -#endif // defined(_MSC_VER) - -#if defined(_MSC_VER) -#if defined(ABSL_BUILD_TEST_DLL) -#define ABSL_TEST_DLL __declspec(dllexport) -#elif defined(ABSL_CONSUME_TEST_DLL) -#define ABSL_TEST_DLL __declspec(dllimport) -#else -#define ABSL_TEST_DLL -#endif -#else -#define ABSL_TEST_DLL -#endif // defined(_MSC_VER) - -// ABSL_HAVE_MEMORY_SANITIZER -// -// MemorySanitizer (MSan) is a detector of uninitialized reads. It consists of -// a compiler instrumentation module and a run-time library. -#ifdef ABSL_HAVE_MEMORY_SANITIZER -#error "ABSL_HAVE_MEMORY_SANITIZER cannot be directly set." -#elif !defined(__native_client__) && ABSL_HAVE_FEATURE(memory_sanitizer) -#define ABSL_HAVE_MEMORY_SANITIZER 1 -#endif - -// ABSL_HAVE_THREAD_SANITIZER -// -// ThreadSanitizer (TSan) is a fast data race detector. -#ifdef ABSL_HAVE_THREAD_SANITIZER -#error "ABSL_HAVE_THREAD_SANITIZER cannot be directly set." -#elif defined(__SANITIZE_THREAD__) -#define ABSL_HAVE_THREAD_SANITIZER 1 -#elif ABSL_HAVE_FEATURE(thread_sanitizer) -#define ABSL_HAVE_THREAD_SANITIZER 1 -#endif - -// ABSL_HAVE_ADDRESS_SANITIZER -// -// AddressSanitizer (ASan) is a fast memory error detector. -#ifdef ABSL_HAVE_ADDRESS_SANITIZER -#error "ABSL_HAVE_ADDRESS_SANITIZER cannot be directly set." -#elif defined(__SANITIZE_ADDRESS__) -#define ABSL_HAVE_ADDRESS_SANITIZER 1 -#elif ABSL_HAVE_FEATURE(address_sanitizer) -#define ABSL_HAVE_ADDRESS_SANITIZER 1 -#endif - -// ABSL_HAVE_HWADDRESS_SANITIZER -// -// Hardware-Assisted AddressSanitizer (or HWASAN) is even faster than asan -// memory error detector which can use CPU features like ARM TBI, Intel LAM or -// AMD UAI. -#ifdef ABSL_HAVE_HWADDRESS_SANITIZER -#error "ABSL_HAVE_HWADDRESS_SANITIZER cannot be directly set." -#elif defined(__SANITIZE_HWADDRESS__) -#define ABSL_HAVE_HWADDRESS_SANITIZER 1 -#elif ABSL_HAVE_FEATURE(hwaddress_sanitizer) -#define ABSL_HAVE_HWADDRESS_SANITIZER 1 -#endif - -// ABSL_HAVE_LEAK_SANITIZER -// -// LeakSanitizer (or lsan) is a detector of memory leaks. -// https://clang.llvm.org/docs/LeakSanitizer.html -// https://github.com/google/sanitizers/wiki/AddressSanitizerLeakSanitizer -// -// The macro ABSL_HAVE_LEAK_SANITIZER can be used to detect at compile-time -// whether the LeakSanitizer is potentially available. However, just because the -// LeakSanitizer is available does not mean it is active. Use the -// always-available run-time interface in //absl/debugging/leak_check.h for -// interacting with LeakSanitizer. -#ifdef ABSL_HAVE_LEAK_SANITIZER -#error "ABSL_HAVE_LEAK_SANITIZER cannot be directly set." -#elif defined(LEAK_SANITIZER) -// GCC provides no method for detecting the presense of the standalone -// LeakSanitizer (-fsanitize=leak), so GCC users of -fsanitize=leak should also -// use -DLEAK_SANITIZER. -#define ABSL_HAVE_LEAK_SANITIZER 1 -// Clang standalone LeakSanitizer (-fsanitize=leak) -#elif ABSL_HAVE_FEATURE(leak_sanitizer) -#define ABSL_HAVE_LEAK_SANITIZER 1 -#elif defined(ABSL_HAVE_ADDRESS_SANITIZER) -// GCC or Clang using the LeakSanitizer integrated into AddressSanitizer. -#define ABSL_HAVE_LEAK_SANITIZER 1 -#endif - -// ABSL_HAVE_CLASS_TEMPLATE_ARGUMENT_DEDUCTION -// -// Class template argument deduction is a language feature added in C++17. -#ifdef ABSL_HAVE_CLASS_TEMPLATE_ARGUMENT_DEDUCTION -#error "ABSL_HAVE_CLASS_TEMPLATE_ARGUMENT_DEDUCTION cannot be directly set." -#elif defined(__cpp_deduction_guides) -#define ABSL_HAVE_CLASS_TEMPLATE_ARGUMENT_DEDUCTION 1 -#endif - -// ABSL_INTERNAL_NEED_REDUNDANT_CONSTEXPR_DECL -// -// Prior to C++17, static constexpr variables defined in classes required a -// separate definition outside of the class body, for example: -// -// class Foo { -// static constexpr int kBar = 0; -// }; -// constexpr int Foo::kBar; -// -// In C++17, these variables defined in classes are considered inline variables, -// and the extra declaration is redundant. Since some compilers warn on the -// extra declarations, ABSL_INTERNAL_NEED_REDUNDANT_CONSTEXPR_DECL can be used -// conditionally ignore them: -// -// #ifdef ABSL_INTERNAL_NEED_REDUNDANT_CONSTEXPR_DECL -// constexpr int Foo::kBar; -// #endif -#if defined(ABSL_INTERNAL_CPLUSPLUS_LANG) && \ - ABSL_INTERNAL_CPLUSPLUS_LANG < 201703L -#define ABSL_INTERNAL_NEED_REDUNDANT_CONSTEXPR_DECL 1 -#endif - -// `ABSL_INTERNAL_HAS_RTTI` determines whether abseil is being compiled with -// RTTI support. -#ifdef ABSL_INTERNAL_HAS_RTTI -#error ABSL_INTERNAL_HAS_RTTI cannot be directly set -#elif !defined(__GNUC__) || defined(__GXX_RTTI) -#define ABSL_INTERNAL_HAS_RTTI 1 -#endif // !defined(__GNUC__) || defined(__GXX_RTTI) - -// ABSL_INTERNAL_HAVE_SSE is used for compile-time detection of SSE support. -// See https://gcc.gnu.org/onlinedocs/gcc/x86-Options.html for an overview of -// which architectures support the various x86 instruction sets. -#ifdef ABSL_INTERNAL_HAVE_SSE -#error ABSL_INTERNAL_HAVE_SSE cannot be directly set -#elif defined(__SSE__) -#define ABSL_INTERNAL_HAVE_SSE 1 -#elif defined(_M_X64) || (defined(_M_IX86_FP) && _M_IX86_FP >= 1) -// MSVC only defines _M_IX86_FP for x86 32-bit code, and _M_IX86_FP >= 1 -// indicates that at least SSE was targeted with the /arch:SSE option. -// All x86-64 processors support SSE, so support can be assumed. -// https://docs.microsoft.com/en-us/cpp/preprocessor/predefined-macros -#define ABSL_INTERNAL_HAVE_SSE 1 -#endif - -// ABSL_INTERNAL_HAVE_SSE2 is used for compile-time detection of SSE2 support. -// See https://gcc.gnu.org/onlinedocs/gcc/x86-Options.html for an overview of -// which architectures support the various x86 instruction sets. -#ifdef ABSL_INTERNAL_HAVE_SSE2 -#error ABSL_INTERNAL_HAVE_SSE2 cannot be directly set -#elif defined(__SSE2__) -#define ABSL_INTERNAL_HAVE_SSE2 1 -#elif defined(_M_X64) || (defined(_M_IX86_FP) && _M_IX86_FP >= 2) -// MSVC only defines _M_IX86_FP for x86 32-bit code, and _M_IX86_FP >= 2 -// indicates that at least SSE2 was targeted with the /arch:SSE2 option. -// All x86-64 processors support SSE2, so support can be assumed. -// https://docs.microsoft.com/en-us/cpp/preprocessor/predefined-macros -#define ABSL_INTERNAL_HAVE_SSE2 1 -#endif - -// ABSL_INTERNAL_HAVE_SSSE3 is used for compile-time detection of SSSE3 support. -// See https://gcc.gnu.org/onlinedocs/gcc/x86-Options.html for an overview of -// which architectures support the various x86 instruction sets. -// -// MSVC does not have a mode that targets SSSE3 at compile-time. To use SSSE3 -// with MSVC requires either assuming that the code will only every run on CPUs -// that support SSSE3, otherwise __cpuid() can be used to detect support at -// runtime and fallback to a non-SSSE3 implementation when SSSE3 is unsupported -// by the CPU. -#ifdef ABSL_INTERNAL_HAVE_SSSE3 -#error ABSL_INTERNAL_HAVE_SSSE3 cannot be directly set -#elif defined(__SSSE3__) -#define ABSL_INTERNAL_HAVE_SSSE3 1 -#endif - -// ABSL_INTERNAL_HAVE_ARM_NEON is used for compile-time detection of NEON (ARM -// SIMD). -// -// If __CUDA_ARCH__ is defined, then we are compiling CUDA code in device mode. -// In device mode, NEON intrinsics are not available, regardless of host -// platform. -// https://llvm.org/docs/CompileCudaWithLLVM.html#detecting-clang-vs-nvcc-from-code -#ifdef ABSL_INTERNAL_HAVE_ARM_NEON -#error ABSL_INTERNAL_HAVE_ARM_NEON cannot be directly set -#elif defined(__ARM_NEON) && !defined(__CUDA_ARCH__) -#define ABSL_INTERNAL_HAVE_ARM_NEON 1 -#endif - -// ABSL_HAVE_CONSTANT_EVALUATED is used for compile-time detection of -// constant evaluation support through `absl::is_constant_evaluated`. -#ifdef ABSL_HAVE_CONSTANT_EVALUATED -#error ABSL_HAVE_CONSTANT_EVALUATED cannot be directly set -#endif -#ifdef __cpp_lib_is_constant_evaluated -#define ABSL_HAVE_CONSTANT_EVALUATED 1 -#elif ABSL_HAVE_BUILTIN(__builtin_is_constant_evaluated) -#define ABSL_HAVE_CONSTANT_EVALUATED 1 -#endif - -#endif // ABSL_BASE_CONFIG_H_ diff --git a/src/third_party/abseil-cpp/absl/base/config_test.cc b/src/third_party/abseil-cpp/absl/base/config_test.cc deleted file mode 100644 index 7e0c033de5..0000000000 --- a/src/third_party/abseil-cpp/absl/base/config_test.cc +++ /dev/null @@ -1,60 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/base/config.h" - -#include - -#include "gtest/gtest.h" -#include "absl/synchronization/internal/thread_pool.h" - -namespace { - -TEST(ConfigTest, Endianness) { - union { - uint32_t value; - uint8_t data[sizeof(uint32_t)]; - } number; - number.data[0] = 0x00; - number.data[1] = 0x01; - number.data[2] = 0x02; - number.data[3] = 0x03; -#if defined(ABSL_IS_LITTLE_ENDIAN) && defined(ABSL_IS_BIG_ENDIAN) -#error Both ABSL_IS_LITTLE_ENDIAN and ABSL_IS_BIG_ENDIAN are defined -#elif defined(ABSL_IS_LITTLE_ENDIAN) - EXPECT_EQ(UINT32_C(0x03020100), number.value); -#elif defined(ABSL_IS_BIG_ENDIAN) - EXPECT_EQ(UINT32_C(0x00010203), number.value); -#else -#error Unknown endianness -#endif -} - -#if defined(ABSL_HAVE_THREAD_LOCAL) -TEST(ConfigTest, ThreadLocal) { - static thread_local int mine_mine_mine = 16; - EXPECT_EQ(16, mine_mine_mine); - { - absl::synchronization_internal::ThreadPool pool(1); - pool.Schedule([&] { - EXPECT_EQ(16, mine_mine_mine); - mine_mine_mine = 32; - EXPECT_EQ(32, mine_mine_mine); - }); - } - EXPECT_EQ(16, mine_mine_mine); -} -#endif - -} // namespace diff --git a/src/third_party/abseil-cpp/absl/base/const_init.h b/src/third_party/abseil-cpp/absl/base/const_init.h deleted file mode 100644 index 16520b61d9..0000000000 --- a/src/third_party/abseil-cpp/absl/base/const_init.h +++ /dev/null @@ -1,76 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// ----------------------------------------------------------------------------- -// kConstInit -// ----------------------------------------------------------------------------- -// -// A constructor tag used to mark an object as safe for use as a global -// variable, avoiding the usual lifetime issues that can affect globals. - -#ifndef ABSL_BASE_CONST_INIT_H_ -#define ABSL_BASE_CONST_INIT_H_ - -#include "absl/base/config.h" - -// In general, objects with static storage duration (such as global variables) -// can trigger tricky object lifetime situations. Attempting to access them -// from the constructors or destructors of other global objects can result in -// undefined behavior, unless their constructors and destructors are designed -// with this issue in mind. -// -// The normal way to deal with this issue in C++11 is to use constant -// initialization and trivial destructors. -// -// Constant initialization is guaranteed to occur before any other code -// executes. Constructors that are declared 'constexpr' are eligible for -// constant initialization. You can annotate a variable declaration with the -// ABSL_CONST_INIT macro to express this intent. For compilers that support -// it, this annotation will cause a compilation error for declarations that -// aren't subject to constant initialization (perhaps because a runtime value -// was passed as a constructor argument). -// -// On program shutdown, lifetime issues can be avoided on global objects by -// ensuring that they contain trivial destructors. A class has a trivial -// destructor unless it has a user-defined destructor, a virtual method or base -// class, or a data member or base class with a non-trivial destructor of its -// own. Objects with static storage duration and a trivial destructor are not -// cleaned up on program shutdown, and are thus safe to access from other code -// running during shutdown. -// -// For a few core Abseil classes, we make a best effort to allow for safe global -// instances, even though these classes have non-trivial destructors. These -// objects can be created with the absl::kConstInit tag. For example: -// ABSL_CONST_INIT absl::Mutex global_mutex(absl::kConstInit); -// -// The line above declares a global variable of type absl::Mutex which can be -// accessed at any point during startup or shutdown. global_mutex's destructor -// will still run, but will not invalidate the object. Note that C++ specifies -// that accessing an object after its destructor has run results in undefined -// behavior, but this pattern works on the toolchains we support. -// -// The absl::kConstInit tag should only be used to define objects with static -// or thread_local storage duration. - -namespace absl { -ABSL_NAMESPACE_BEGIN - -enum ConstInitType { - kConstInit, -}; - -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_BASE_CONST_INIT_H_ diff --git a/src/third_party/abseil-cpp/absl/base/dynamic_annotations.h b/src/third_party/abseil-cpp/absl/base/dynamic_annotations.h deleted file mode 100644 index 3ea7c1568c..0000000000 --- a/src/third_party/abseil-cpp/absl/base/dynamic_annotations.h +++ /dev/null @@ -1,471 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// This file defines dynamic annotations for use with dynamic analysis tool -// such as valgrind, PIN, etc. -// -// Dynamic annotation is a source code annotation that affects the generated -// code (that is, the annotation is not a comment). Each such annotation is -// attached to a particular instruction and/or to a particular object (address) -// in the program. -// -// The annotations that should be used by users are macros in all upper-case -// (e.g., ABSL_ANNOTATE_THREAD_NAME). -// -// Actual implementation of these macros may differ depending on the dynamic -// analysis tool being used. -// -// This file supports the following configurations: -// - Dynamic Annotations enabled (with static thread-safety warnings disabled). -// In this case, macros expand to functions implemented by Thread Sanitizer, -// when building with TSan. When not provided an external implementation, -// dynamic_annotations.cc provides no-op implementations. -// -// - Static Clang thread-safety warnings enabled. -// When building with a Clang compiler that supports thread-safety warnings, -// a subset of annotations can be statically-checked at compile-time. We -// expand these macros to static-inline functions that can be analyzed for -// thread-safety, but afterwards elided when building the final binary. -// -// - All annotations are disabled. -// If neither Dynamic Annotations nor Clang thread-safety warnings are -// enabled, then all annotation-macros expand to empty. - -#ifndef ABSL_BASE_DYNAMIC_ANNOTATIONS_H_ -#define ABSL_BASE_DYNAMIC_ANNOTATIONS_H_ - -#include - -#include "absl/base/attributes.h" -#include "absl/base/config.h" -#ifdef __cplusplus -#include "absl/base/macros.h" -#endif - -// TODO(rogeeff): Remove after the backward compatibility period. -#include "absl/base/internal/dynamic_annotations.h" // IWYU pragma: export - -// ------------------------------------------------------------------------- -// Decide which features are enabled. - -#ifdef ABSL_HAVE_THREAD_SANITIZER - -#define ABSL_INTERNAL_RACE_ANNOTATIONS_ENABLED 1 -#define ABSL_INTERNAL_READS_ANNOTATIONS_ENABLED 1 -#define ABSL_INTERNAL_WRITES_ANNOTATIONS_ENABLED 1 -#define ABSL_INTERNAL_ANNOTALYSIS_ENABLED 0 -#define ABSL_INTERNAL_READS_WRITES_ANNOTATIONS_ENABLED 1 - -#else - -#define ABSL_INTERNAL_RACE_ANNOTATIONS_ENABLED 0 -#define ABSL_INTERNAL_READS_ANNOTATIONS_ENABLED 0 -#define ABSL_INTERNAL_WRITES_ANNOTATIONS_ENABLED 0 - -// Clang provides limited support for static thread-safety analysis through a -// feature called Annotalysis. We configure macro-definitions according to -// whether Annotalysis support is available. When running in opt-mode, GCC -// will issue a warning, if these attributes are compiled. Only include them -// when compiling using Clang. - -#if defined(__clang__) -#define ABSL_INTERNAL_ANNOTALYSIS_ENABLED 1 -#if !defined(SWIG) -#define ABSL_INTERNAL_IGNORE_READS_ATTRIBUTE_ENABLED 1 -#endif -#else -#define ABSL_INTERNAL_ANNOTALYSIS_ENABLED 0 -#endif - -// Read/write annotations are enabled in Annotalysis mode; disabled otherwise. -#define ABSL_INTERNAL_READS_WRITES_ANNOTATIONS_ENABLED \ - ABSL_INTERNAL_ANNOTALYSIS_ENABLED - -#endif // ABSL_HAVE_THREAD_SANITIZER - -#ifdef __cplusplus -#define ABSL_INTERNAL_BEGIN_EXTERN_C extern "C" { -#define ABSL_INTERNAL_END_EXTERN_C } // extern "C" -#define ABSL_INTERNAL_GLOBAL_SCOPED(F) ::F -#define ABSL_INTERNAL_STATIC_INLINE inline -#else -#define ABSL_INTERNAL_BEGIN_EXTERN_C // empty -#define ABSL_INTERNAL_END_EXTERN_C // empty -#define ABSL_INTERNAL_GLOBAL_SCOPED(F) F -#define ABSL_INTERNAL_STATIC_INLINE static inline -#endif - -// ------------------------------------------------------------------------- -// Define race annotations. - -#if ABSL_INTERNAL_RACE_ANNOTATIONS_ENABLED == 1 -// Some of the symbols used in this section (e.g. AnnotateBenignRaceSized) are -// defined by the compiler-based santizer implementation, not by the Abseil -// library. Therefore they do not use ABSL_INTERNAL_C_SYMBOL. - -// ------------------------------------------------------------- -// Annotations that suppress errors. It is usually better to express the -// program's synchronization using the other annotations, but these can be used -// when all else fails. - -// Report that we may have a benign race at `pointer`, with size -// "sizeof(*(pointer))". `pointer` must be a non-void* pointer. Insert at the -// point where `pointer` has been allocated, preferably close to the point -// where the race happens. See also ABSL_ANNOTATE_BENIGN_RACE_STATIC. -#define ABSL_ANNOTATE_BENIGN_RACE(pointer, description) \ - ABSL_INTERNAL_GLOBAL_SCOPED(AnnotateBenignRaceSized) \ - (__FILE__, __LINE__, pointer, sizeof(*(pointer)), description) - -// Same as ABSL_ANNOTATE_BENIGN_RACE(`address`, `description`), but applies to -// the memory range [`address`, `address`+`size`). -#define ABSL_ANNOTATE_BENIGN_RACE_SIZED(address, size, description) \ - ABSL_INTERNAL_GLOBAL_SCOPED(AnnotateBenignRaceSized) \ - (__FILE__, __LINE__, address, size, description) - -// Enable (`enable`!=0) or disable (`enable`==0) race detection for all threads. -// This annotation could be useful if you want to skip expensive race analysis -// during some period of program execution, e.g. during initialization. -#define ABSL_ANNOTATE_ENABLE_RACE_DETECTION(enable) \ - ABSL_INTERNAL_GLOBAL_SCOPED(AnnotateEnableRaceDetection) \ - (__FILE__, __LINE__, enable) - -// ------------------------------------------------------------- -// Annotations useful for debugging. - -// Report the current thread `name` to a race detector. -#define ABSL_ANNOTATE_THREAD_NAME(name) \ - ABSL_INTERNAL_GLOBAL_SCOPED(AnnotateThreadName)(__FILE__, __LINE__, name) - -// ------------------------------------------------------------- -// Annotations useful when implementing locks. They are not normally needed by -// modules that merely use locks. The `lock` argument is a pointer to the lock -// object. - -// Report that a lock has been created at address `lock`. -#define ABSL_ANNOTATE_RWLOCK_CREATE(lock) \ - ABSL_INTERNAL_GLOBAL_SCOPED(AnnotateRWLockCreate)(__FILE__, __LINE__, lock) - -// Report that a linker initialized lock has been created at address `lock`. -#ifdef ABSL_HAVE_THREAD_SANITIZER -#define ABSL_ANNOTATE_RWLOCK_CREATE_STATIC(lock) \ - ABSL_INTERNAL_GLOBAL_SCOPED(AnnotateRWLockCreateStatic) \ - (__FILE__, __LINE__, lock) -#else -#define ABSL_ANNOTATE_RWLOCK_CREATE_STATIC(lock) \ - ABSL_ANNOTATE_RWLOCK_CREATE(lock) -#endif - -// Report that the lock at address `lock` is about to be destroyed. -#define ABSL_ANNOTATE_RWLOCK_DESTROY(lock) \ - ABSL_INTERNAL_GLOBAL_SCOPED(AnnotateRWLockDestroy)(__FILE__, __LINE__, lock) - -// Report that the lock at address `lock` has been acquired. -// `is_w`=1 for writer lock, `is_w`=0 for reader lock. -#define ABSL_ANNOTATE_RWLOCK_ACQUIRED(lock, is_w) \ - ABSL_INTERNAL_GLOBAL_SCOPED(AnnotateRWLockAcquired) \ - (__FILE__, __LINE__, lock, is_w) - -// Report that the lock at address `lock` is about to be released. -// `is_w`=1 for writer lock, `is_w`=0 for reader lock. -#define ABSL_ANNOTATE_RWLOCK_RELEASED(lock, is_w) \ - ABSL_INTERNAL_GLOBAL_SCOPED(AnnotateRWLockReleased) \ - (__FILE__, __LINE__, lock, is_w) - -// Apply ABSL_ANNOTATE_BENIGN_RACE_SIZED to a static variable `static_var`. -#define ABSL_ANNOTATE_BENIGN_RACE_STATIC(static_var, description) \ - namespace { \ - class static_var##_annotator { \ - public: \ - static_var##_annotator() { \ - ABSL_ANNOTATE_BENIGN_RACE_SIZED(&static_var, sizeof(static_var), \ - #static_var ": " description); \ - } \ - }; \ - static static_var##_annotator the##static_var##_annotator; \ - } // namespace - -// Function prototypes of annotations provided by the compiler-based sanitizer -// implementation. -ABSL_INTERNAL_BEGIN_EXTERN_C -void AnnotateRWLockCreate(const char* file, int line, - const volatile void* lock); -void AnnotateRWLockCreateStatic(const char* file, int line, - const volatile void* lock); -void AnnotateRWLockDestroy(const char* file, int line, - const volatile void* lock); -void AnnotateRWLockAcquired(const char* file, int line, - const volatile void* lock, long is_w); // NOLINT -void AnnotateRWLockReleased(const char* file, int line, - const volatile void* lock, long is_w); // NOLINT -void AnnotateBenignRace(const char* file, int line, - const volatile void* address, const char* description); -void AnnotateBenignRaceSized(const char* file, int line, - const volatile void* address, size_t size, - const char* description); -void AnnotateThreadName(const char* file, int line, const char* name); -void AnnotateEnableRaceDetection(const char* file, int line, int enable); -ABSL_INTERNAL_END_EXTERN_C - -#else // ABSL_INTERNAL_RACE_ANNOTATIONS_ENABLED == 0 - -#define ABSL_ANNOTATE_RWLOCK_CREATE(lock) // empty -#define ABSL_ANNOTATE_RWLOCK_CREATE_STATIC(lock) // empty -#define ABSL_ANNOTATE_RWLOCK_DESTROY(lock) // empty -#define ABSL_ANNOTATE_RWLOCK_ACQUIRED(lock, is_w) // empty -#define ABSL_ANNOTATE_RWLOCK_RELEASED(lock, is_w) // empty -#define ABSL_ANNOTATE_BENIGN_RACE(address, description) // empty -#define ABSL_ANNOTATE_BENIGN_RACE_SIZED(address, size, description) // empty -#define ABSL_ANNOTATE_THREAD_NAME(name) // empty -#define ABSL_ANNOTATE_ENABLE_RACE_DETECTION(enable) // empty -#define ABSL_ANNOTATE_BENIGN_RACE_STATIC(static_var, description) // empty - -#endif // ABSL_INTERNAL_RACE_ANNOTATIONS_ENABLED - -// ------------------------------------------------------------------------- -// Define memory annotations. - -#ifdef ABSL_HAVE_MEMORY_SANITIZER - -#include - -#define ABSL_ANNOTATE_MEMORY_IS_INITIALIZED(address, size) \ - __msan_unpoison(address, size) - -#define ABSL_ANNOTATE_MEMORY_IS_UNINITIALIZED(address, size) \ - __msan_allocated_memory(address, size) - -#else // !defined(ABSL_HAVE_MEMORY_SANITIZER) - -// TODO(rogeeff): remove this branch -#ifdef ABSL_HAVE_THREAD_SANITIZER -#define ABSL_ANNOTATE_MEMORY_IS_INITIALIZED(address, size) \ - do { \ - (void)(address); \ - (void)(size); \ - } while (0) -#define ABSL_ANNOTATE_MEMORY_IS_UNINITIALIZED(address, size) \ - do { \ - (void)(address); \ - (void)(size); \ - } while (0) -#else - -#define ABSL_ANNOTATE_MEMORY_IS_INITIALIZED(address, size) // empty -#define ABSL_ANNOTATE_MEMORY_IS_UNINITIALIZED(address, size) // empty - -#endif - -#endif // ABSL_HAVE_MEMORY_SANITIZER - -// ------------------------------------------------------------------------- -// Define IGNORE_READS_BEGIN/_END attributes. - -#if defined(ABSL_INTERNAL_IGNORE_READS_ATTRIBUTE_ENABLED) - -#define ABSL_INTERNAL_IGNORE_READS_BEGIN_ATTRIBUTE \ - __attribute((exclusive_lock_function("*"))) -#define ABSL_INTERNAL_IGNORE_READS_END_ATTRIBUTE \ - __attribute((unlock_function("*"))) - -#else // !defined(ABSL_INTERNAL_IGNORE_READS_ATTRIBUTE_ENABLED) - -#define ABSL_INTERNAL_IGNORE_READS_BEGIN_ATTRIBUTE // empty -#define ABSL_INTERNAL_IGNORE_READS_END_ATTRIBUTE // empty - -#endif // defined(ABSL_INTERNAL_IGNORE_READS_ATTRIBUTE_ENABLED) - -// ------------------------------------------------------------------------- -// Define IGNORE_READS_BEGIN/_END annotations. - -#if ABSL_INTERNAL_READS_ANNOTATIONS_ENABLED == 1 -// Some of the symbols used in this section (e.g. AnnotateIgnoreReadsBegin) are -// defined by the compiler-based implementation, not by the Abseil -// library. Therefore they do not use ABSL_INTERNAL_C_SYMBOL. - -// Request the analysis tool to ignore all reads in the current thread until -// ABSL_ANNOTATE_IGNORE_READS_END is called. Useful to ignore intentional racey -// reads, while still checking other reads and all writes. -// See also ABSL_ANNOTATE_UNPROTECTED_READ. -#define ABSL_ANNOTATE_IGNORE_READS_BEGIN() \ - ABSL_INTERNAL_GLOBAL_SCOPED(AnnotateIgnoreReadsBegin) \ - (__FILE__, __LINE__) - -// Stop ignoring reads. -#define ABSL_ANNOTATE_IGNORE_READS_END() \ - ABSL_INTERNAL_GLOBAL_SCOPED(AnnotateIgnoreReadsEnd) \ - (__FILE__, __LINE__) - -// Function prototypes of annotations provided by the compiler-based sanitizer -// implementation. -ABSL_INTERNAL_BEGIN_EXTERN_C -void AnnotateIgnoreReadsBegin(const char* file, int line) - ABSL_INTERNAL_IGNORE_READS_BEGIN_ATTRIBUTE; -void AnnotateIgnoreReadsEnd(const char* file, - int line) ABSL_INTERNAL_IGNORE_READS_END_ATTRIBUTE; -ABSL_INTERNAL_END_EXTERN_C - -#elif defined(ABSL_INTERNAL_ANNOTALYSIS_ENABLED) - -// When Annotalysis is enabled without Dynamic Annotations, the use of -// static-inline functions allows the annotations to be read at compile-time, -// while still letting the compiler elide the functions from the final build. -// -// TODO(delesley) -- The exclusive lock here ignores writes as well, but -// allows IGNORE_READS_AND_WRITES to work properly. - -#define ABSL_ANNOTATE_IGNORE_READS_BEGIN() \ - ABSL_INTERNAL_GLOBAL_SCOPED( \ - ABSL_INTERNAL_C_SYMBOL(AbslInternalAnnotateIgnoreReadsBegin)) \ - () - -#define ABSL_ANNOTATE_IGNORE_READS_END() \ - ABSL_INTERNAL_GLOBAL_SCOPED( \ - ABSL_INTERNAL_C_SYMBOL(AbslInternalAnnotateIgnoreReadsEnd)) \ - () - -ABSL_INTERNAL_STATIC_INLINE void ABSL_INTERNAL_C_SYMBOL( - AbslInternalAnnotateIgnoreReadsBegin)() - ABSL_INTERNAL_IGNORE_READS_BEGIN_ATTRIBUTE {} - -ABSL_INTERNAL_STATIC_INLINE void ABSL_INTERNAL_C_SYMBOL( - AbslInternalAnnotateIgnoreReadsEnd)() - ABSL_INTERNAL_IGNORE_READS_END_ATTRIBUTE {} - -#else - -#define ABSL_ANNOTATE_IGNORE_READS_BEGIN() // empty -#define ABSL_ANNOTATE_IGNORE_READS_END() // empty - -#endif - -// ------------------------------------------------------------------------- -// Define IGNORE_WRITES_BEGIN/_END annotations. - -#if ABSL_INTERNAL_WRITES_ANNOTATIONS_ENABLED == 1 - -// Similar to ABSL_ANNOTATE_IGNORE_READS_BEGIN, but ignore writes instead. -#define ABSL_ANNOTATE_IGNORE_WRITES_BEGIN() \ - ABSL_INTERNAL_GLOBAL_SCOPED(AnnotateIgnoreWritesBegin)(__FILE__, __LINE__) - -// Stop ignoring writes. -#define ABSL_ANNOTATE_IGNORE_WRITES_END() \ - ABSL_INTERNAL_GLOBAL_SCOPED(AnnotateIgnoreWritesEnd)(__FILE__, __LINE__) - -// Function prototypes of annotations provided by the compiler-based sanitizer -// implementation. -ABSL_INTERNAL_BEGIN_EXTERN_C -void AnnotateIgnoreWritesBegin(const char* file, int line); -void AnnotateIgnoreWritesEnd(const char* file, int line); -ABSL_INTERNAL_END_EXTERN_C - -#else - -#define ABSL_ANNOTATE_IGNORE_WRITES_BEGIN() // empty -#define ABSL_ANNOTATE_IGNORE_WRITES_END() // empty - -#endif - -// ------------------------------------------------------------------------- -// Define the ABSL_ANNOTATE_IGNORE_READS_AND_WRITES_* annotations using the more -// primitive annotations defined above. -// -// Instead of doing -// ABSL_ANNOTATE_IGNORE_READS_BEGIN(); -// ... = x; -// ABSL_ANNOTATE_IGNORE_READS_END(); -// one can use -// ... = ABSL_ANNOTATE_UNPROTECTED_READ(x); - -#if defined(ABSL_INTERNAL_READS_WRITES_ANNOTATIONS_ENABLED) - -// Start ignoring all memory accesses (both reads and writes). -#define ABSL_ANNOTATE_IGNORE_READS_AND_WRITES_BEGIN() \ - do { \ - ABSL_ANNOTATE_IGNORE_READS_BEGIN(); \ - ABSL_ANNOTATE_IGNORE_WRITES_BEGIN(); \ - } while (0) - -// Stop ignoring both reads and writes. -#define ABSL_ANNOTATE_IGNORE_READS_AND_WRITES_END() \ - do { \ - ABSL_ANNOTATE_IGNORE_WRITES_END(); \ - ABSL_ANNOTATE_IGNORE_READS_END(); \ - } while (0) - -#ifdef __cplusplus -// ABSL_ANNOTATE_UNPROTECTED_READ is the preferred way to annotate racey reads. -#define ABSL_ANNOTATE_UNPROTECTED_READ(x) \ - absl::base_internal::AnnotateUnprotectedRead(x) - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace base_internal { - -template -inline T AnnotateUnprotectedRead(const volatile T& x) { // NOLINT - ABSL_ANNOTATE_IGNORE_READS_BEGIN(); - T res = x; - ABSL_ANNOTATE_IGNORE_READS_END(); - return res; -} - -} // namespace base_internal -ABSL_NAMESPACE_END -} // namespace absl -#endif - -#else - -#define ABSL_ANNOTATE_IGNORE_READS_AND_WRITES_BEGIN() // empty -#define ABSL_ANNOTATE_IGNORE_READS_AND_WRITES_END() // empty -#define ABSL_ANNOTATE_UNPROTECTED_READ(x) (x) - -#endif - -// ------------------------------------------------------------------------- -// Address sanitizer annotations - -#ifdef ABSL_HAVE_ADDRESS_SANITIZER -// Describe the current state of a contiguous container such as e.g. -// std::vector or std::string. For more details see -// sanitizer/common_interface_defs.h, which is provided by the compiler. -#include - -#define ABSL_ANNOTATE_CONTIGUOUS_CONTAINER(beg, end, old_mid, new_mid) \ - __sanitizer_annotate_contiguous_container(beg, end, old_mid, new_mid) -#define ABSL_ADDRESS_SANITIZER_REDZONE(name) \ - struct { \ - alignas(8) char x[8]; \ - } name - -#else - -#define ABSL_ANNOTATE_CONTIGUOUS_CONTAINER(beg, end, old_mid, new_mid) // empty -#define ABSL_ADDRESS_SANITIZER_REDZONE(name) static_assert(true, "") - -#endif // ABSL_HAVE_ADDRESS_SANITIZER - -// ------------------------------------------------------------------------- -// Undefine the macros intended only for this file. - -#undef ABSL_INTERNAL_RACE_ANNOTATIONS_ENABLED -#undef ABSL_INTERNAL_READS_ANNOTATIONS_ENABLED -#undef ABSL_INTERNAL_WRITES_ANNOTATIONS_ENABLED -#undef ABSL_INTERNAL_ANNOTALYSIS_ENABLED -#undef ABSL_INTERNAL_READS_WRITES_ANNOTATIONS_ENABLED -#undef ABSL_INTERNAL_BEGIN_EXTERN_C -#undef ABSL_INTERNAL_END_EXTERN_C -#undef ABSL_INTERNAL_STATIC_INLINE - -#endif // ABSL_BASE_DYNAMIC_ANNOTATIONS_H_ diff --git a/src/third_party/abseil-cpp/absl/base/exception_safety_testing_test.cc b/src/third_party/abseil-cpp/absl/base/exception_safety_testing_test.cc deleted file mode 100644 index a87fd6a99e..0000000000 --- a/src/third_party/abseil-cpp/absl/base/exception_safety_testing_test.cc +++ /dev/null @@ -1,959 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/base/internal/exception_safety_testing.h" - -#ifdef ABSL_HAVE_EXCEPTIONS - -#include -#include -#include -#include -#include -#include - -#include "gtest/gtest-spi.h" -#include "gtest/gtest.h" -#include "absl/memory/memory.h" - -namespace testing { - -namespace { - -using ::testing::exceptions_internal::SetCountdown; -using ::testing::exceptions_internal::TestException; -using ::testing::exceptions_internal::UnsetCountdown; - -// EXPECT_NO_THROW can't inspect the thrown inspection in general. -template -void ExpectNoThrow(const F& f) { - try { - f(); - } catch (const TestException& e) { - ADD_FAILURE() << "Unexpected exception thrown from " << e.what(); - } -} - -TEST(ThrowingValueTest, Throws) { - SetCountdown(); - EXPECT_THROW(ThrowingValue<> bomb, TestException); - - // It's not guaranteed that every operator only throws *once*. The default - // ctor only throws once, though, so use it to make sure we only throw when - // the countdown hits 0 - SetCountdown(2); - ExpectNoThrow([]() { ThrowingValue<> bomb; }); - ExpectNoThrow([]() { ThrowingValue<> bomb; }); - EXPECT_THROW(ThrowingValue<> bomb, TestException); - - UnsetCountdown(); -} - -// Tests that an operation throws when the countdown is at 0, doesn't throw when -// the countdown doesn't hit 0, and doesn't modify the state of the -// ThrowingValue if it throws -template -void TestOp(const F& f) { - ExpectNoThrow(f); - - SetCountdown(); - EXPECT_THROW(f(), TestException); - UnsetCountdown(); -} - -TEST(ThrowingValueTest, ThrowingCtors) { - ThrowingValue<> bomb; - - TestOp([]() { ThrowingValue<> bomb(1); }); - TestOp([&]() { ThrowingValue<> bomb1 = bomb; }); - TestOp([&]() { ThrowingValue<> bomb1 = std::move(bomb); }); -} - -TEST(ThrowingValueTest, ThrowingAssignment) { - ThrowingValue<> bomb, bomb1; - - TestOp([&]() { bomb = bomb1; }); - TestOp([&]() { bomb = std::move(bomb1); }); - - // Test that when assignment throws, the assignment should fail (lhs != rhs) - // and strong guarantee fails (lhs != lhs_copy). - { - ThrowingValue<> lhs(39), rhs(42); - ThrowingValue<> lhs_copy(lhs); - SetCountdown(); - EXPECT_THROW(lhs = rhs, TestException); - UnsetCountdown(); - EXPECT_NE(lhs, rhs); - EXPECT_NE(lhs_copy, lhs); - } - { - ThrowingValue<> lhs(39), rhs(42); - ThrowingValue<> lhs_copy(lhs), rhs_copy(rhs); - SetCountdown(); - EXPECT_THROW(lhs = std::move(rhs), TestException); - UnsetCountdown(); - EXPECT_NE(lhs, rhs_copy); - EXPECT_NE(lhs_copy, lhs); - } -} - -TEST(ThrowingValueTest, ThrowingComparisons) { - ThrowingValue<> bomb1, bomb2; - TestOp([&]() { return bomb1 == bomb2; }); - TestOp([&]() { return bomb1 != bomb2; }); - TestOp([&]() { return bomb1 < bomb2; }); - TestOp([&]() { return bomb1 <= bomb2; }); - TestOp([&]() { return bomb1 > bomb2; }); - TestOp([&]() { return bomb1 >= bomb2; }); -} - -TEST(ThrowingValueTest, ThrowingArithmeticOps) { - ThrowingValue<> bomb1(1), bomb2(2); - - TestOp([&bomb1]() { +bomb1; }); - TestOp([&bomb1]() { -bomb1; }); - TestOp([&bomb1]() { ++bomb1; }); - TestOp([&bomb1]() { bomb1++; }); - TestOp([&bomb1]() { --bomb1; }); - TestOp([&bomb1]() { bomb1--; }); - - TestOp([&]() { bomb1 + bomb2; }); - TestOp([&]() { bomb1 - bomb2; }); - TestOp([&]() { bomb1* bomb2; }); - TestOp([&]() { bomb1 / bomb2; }); - TestOp([&]() { bomb1 << 1; }); - TestOp([&]() { bomb1 >> 1; }); -} - -TEST(ThrowingValueTest, ThrowingLogicalOps) { - ThrowingValue<> bomb1, bomb2; - - TestOp([&bomb1]() { !bomb1; }); - TestOp([&]() { bomb1&& bomb2; }); - TestOp([&]() { bomb1 || bomb2; }); -} - -TEST(ThrowingValueTest, ThrowingBitwiseOps) { - ThrowingValue<> bomb1, bomb2; - - TestOp([&bomb1]() { ~bomb1; }); - TestOp([&]() { bomb1& bomb2; }); - TestOp([&]() { bomb1 | bomb2; }); - TestOp([&]() { bomb1 ^ bomb2; }); -} - -TEST(ThrowingValueTest, ThrowingCompoundAssignmentOps) { - ThrowingValue<> bomb1(1), bomb2(2); - - TestOp([&]() { bomb1 += bomb2; }); - TestOp([&]() { bomb1 -= bomb2; }); - TestOp([&]() { bomb1 *= bomb2; }); - TestOp([&]() { bomb1 /= bomb2; }); - TestOp([&]() { bomb1 %= bomb2; }); - TestOp([&]() { bomb1 &= bomb2; }); - TestOp([&]() { bomb1 |= bomb2; }); - TestOp([&]() { bomb1 ^= bomb2; }); - TestOp([&]() { bomb1 *= bomb2; }); -} - -TEST(ThrowingValueTest, ThrowingStreamOps) { - ThrowingValue<> bomb; - - TestOp([&]() { - std::istringstream stream; - stream >> bomb; - }); - TestOp([&]() { - std::stringstream stream; - stream << bomb; - }); -} - -// Tests the operator<< of ThrowingValue by forcing ConstructorTracker to emit -// a nonfatal failure that contains the string representation of the Thrower -TEST(ThrowingValueTest, StreamOpsOutput) { - using ::testing::TypeSpec; - exceptions_internal::ConstructorTracker ct(exceptions_internal::countdown); - - // Test default spec list (kEverythingThrows) - EXPECT_NONFATAL_FAILURE( - { - using Thrower = ThrowingValue; - auto thrower = Thrower(123); - thrower.~Thrower(); - }, - "ThrowingValue<>(123)"); - - // Test with one item in spec list (kNoThrowCopy) - EXPECT_NONFATAL_FAILURE( - { - using Thrower = ThrowingValue; - auto thrower = Thrower(234); - thrower.~Thrower(); - }, - "ThrowingValue(234)"); - - // Test with multiple items in spec list (kNoThrowMove, kNoThrowNew) - EXPECT_NONFATAL_FAILURE( - { - using Thrower = - ThrowingValue; - auto thrower = Thrower(345); - thrower.~Thrower(); - }, - "ThrowingValue(345)"); - - // Test with all items in spec list (kNoThrowCopy, kNoThrowMove, kNoThrowNew) - EXPECT_NONFATAL_FAILURE( - { - using Thrower = ThrowingValue(-1)>; - auto thrower = Thrower(456); - thrower.~Thrower(); - }, - "ThrowingValue(456)"); -} - -template -void TestAllocatingOp(const F& f) { - ExpectNoThrow(f); - - SetCountdown(); - EXPECT_THROW(f(), exceptions_internal::TestBadAllocException); - UnsetCountdown(); -} - -TEST(ThrowingValueTest, ThrowingAllocatingOps) { - // make_unique calls unqualified operator new, so these exercise the - // ThrowingValue overloads. - TestAllocatingOp([]() { return absl::make_unique>(1); }); - TestAllocatingOp([]() { return absl::make_unique[]>(2); }); -} - -TEST(ThrowingValueTest, NonThrowingMoveCtor) { - ThrowingValue nothrow_ctor; - - SetCountdown(); - ExpectNoThrow([¬hrow_ctor]() { - ThrowingValue nothrow1 = std::move(nothrow_ctor); - }); - UnsetCountdown(); -} - -TEST(ThrowingValueTest, NonThrowingMoveAssign) { - ThrowingValue nothrow_assign1, nothrow_assign2; - - SetCountdown(); - ExpectNoThrow([¬hrow_assign1, ¬hrow_assign2]() { - nothrow_assign1 = std::move(nothrow_assign2); - }); - UnsetCountdown(); -} - -TEST(ThrowingValueTest, ThrowingCopyCtor) { - ThrowingValue<> tv; - - TestOp([&]() { ThrowingValue<> tv_copy(tv); }); -} - -TEST(ThrowingValueTest, ThrowingCopyAssign) { - ThrowingValue<> tv1, tv2; - - TestOp([&]() { tv1 = tv2; }); -} - -TEST(ThrowingValueTest, NonThrowingCopyCtor) { - ThrowingValue nothrow_ctor; - - SetCountdown(); - ExpectNoThrow([¬hrow_ctor]() { - ThrowingValue nothrow1(nothrow_ctor); - }); - UnsetCountdown(); -} - -TEST(ThrowingValueTest, NonThrowingCopyAssign) { - ThrowingValue nothrow_assign1, nothrow_assign2; - - SetCountdown(); - ExpectNoThrow([¬hrow_assign1, ¬hrow_assign2]() { - nothrow_assign1 = nothrow_assign2; - }); - UnsetCountdown(); -} - -TEST(ThrowingValueTest, ThrowingSwap) { - ThrowingValue<> bomb1, bomb2; - TestOp([&]() { std::swap(bomb1, bomb2); }); -} - -TEST(ThrowingValueTest, NonThrowingSwap) { - ThrowingValue bomb1, bomb2; - ExpectNoThrow([&]() { std::swap(bomb1, bomb2); }); -} - -TEST(ThrowingValueTest, NonThrowingAllocation) { - ThrowingValue* allocated; - ThrowingValue* array; - - ExpectNoThrow([&allocated]() { - allocated = new ThrowingValue(1); - delete allocated; - }); - ExpectNoThrow([&array]() { - array = new ThrowingValue[2]; - delete[] array; - }); -} - -TEST(ThrowingValueTest, NonThrowingDelete) { - auto* allocated = new ThrowingValue<>(1); - auto* array = new ThrowingValue<>[2]; - - SetCountdown(); - ExpectNoThrow([allocated]() { delete allocated; }); - SetCountdown(); - ExpectNoThrow([array]() { delete[] array; }); - - UnsetCountdown(); -} - -TEST(ThrowingValueTest, NonThrowingPlacementDelete) { - constexpr int kArrayLen = 2; - // We intentionally create extra space to store the tag allocated by placement - // new[]. - constexpr int kStorageLen = 4; - - alignas(ThrowingValue<>) unsigned char buf[sizeof(ThrowingValue<>)]; - alignas(ThrowingValue<>) unsigned char - array_buf[sizeof(ThrowingValue<>[kStorageLen])]; - auto* placed = new (&buf) ThrowingValue<>(1); - auto placed_array = new (&array_buf) ThrowingValue<>[kArrayLen]; - - SetCountdown(); - ExpectNoThrow([placed, &buf]() { - placed->~ThrowingValue<>(); - ThrowingValue<>::operator delete(placed, &buf); - }); - - SetCountdown(); - ExpectNoThrow([&, placed_array]() { - for (int i = 0; i < kArrayLen; ++i) placed_array[i].~ThrowingValue<>(); - ThrowingValue<>::operator delete[](placed_array, &array_buf); - }); - - UnsetCountdown(); -} - -TEST(ThrowingValueTest, NonThrowingDestructor) { - auto* allocated = new ThrowingValue<>(); - - SetCountdown(); - ExpectNoThrow([allocated]() { delete allocated; }); - UnsetCountdown(); -} - -TEST(ThrowingBoolTest, ThrowingBool) { - ThrowingBool t = true; - - // Test that it's contextually convertible to bool - if (t) { // NOLINT(whitespace/empty_if_body) - } - EXPECT_TRUE(t); - - TestOp([&]() { (void)!t; }); -} - -TEST(ThrowingAllocatorTest, MemoryManagement) { - // Just exercise the memory management capabilities under LSan to make sure we - // don't leak. - ThrowingAllocator int_alloc; - int* ip = int_alloc.allocate(1); - int_alloc.deallocate(ip, 1); - int* i_array = int_alloc.allocate(2); - int_alloc.deallocate(i_array, 2); - - ThrowingAllocator> tv_alloc; - ThrowingValue<>* ptr = tv_alloc.allocate(1); - tv_alloc.deallocate(ptr, 1); - ThrowingValue<>* tv_array = tv_alloc.allocate(2); - tv_alloc.deallocate(tv_array, 2); -} - -TEST(ThrowingAllocatorTest, CallsGlobalNew) { - ThrowingAllocator, AllocSpec::kNoThrowAllocate> nothrow_alloc; - ThrowingValue<>* ptr; - - SetCountdown(); - // This will only throw if ThrowingValue::new is called. - ExpectNoThrow([&]() { ptr = nothrow_alloc.allocate(1); }); - nothrow_alloc.deallocate(ptr, 1); - - UnsetCountdown(); -} - -TEST(ThrowingAllocatorTest, ThrowingConstructors) { - ThrowingAllocator int_alloc; - int* ip = nullptr; - - SetCountdown(); - EXPECT_THROW(ip = int_alloc.allocate(1), TestException); - ExpectNoThrow([&]() { ip = int_alloc.allocate(1); }); - - *ip = 1; - SetCountdown(); - EXPECT_THROW(int_alloc.construct(ip, 2), TestException); - EXPECT_EQ(*ip, 1); - int_alloc.deallocate(ip, 1); - - UnsetCountdown(); -} - -TEST(ThrowingAllocatorTest, NonThrowingConstruction) { - { - ThrowingAllocator int_alloc; - int* ip = nullptr; - - SetCountdown(); - ExpectNoThrow([&]() { ip = int_alloc.allocate(1); }); - - SetCountdown(); - ExpectNoThrow([&]() { int_alloc.construct(ip, 2); }); - - EXPECT_EQ(*ip, 2); - int_alloc.deallocate(ip, 1); - - UnsetCountdown(); - } - - { - ThrowingAllocator int_alloc; - int* ip = nullptr; - ExpectNoThrow([&]() { ip = int_alloc.allocate(1); }); - ExpectNoThrow([&]() { int_alloc.construct(ip, 2); }); - EXPECT_EQ(*ip, 2); - int_alloc.deallocate(ip, 1); - } - - { - ThrowingAllocator, AllocSpec::kNoThrowAllocate> - nothrow_alloc; - ThrowingValue<>* ptr; - - SetCountdown(); - ExpectNoThrow([&]() { ptr = nothrow_alloc.allocate(1); }); - - SetCountdown(); - ExpectNoThrow( - [&]() { nothrow_alloc.construct(ptr, 2, testing::nothrow_ctor); }); - - EXPECT_EQ(ptr->Get(), 2); - nothrow_alloc.destroy(ptr); - nothrow_alloc.deallocate(ptr, 1); - - UnsetCountdown(); - } - - { - ThrowingAllocator a; - - SetCountdown(); - ExpectNoThrow([&]() { ThrowingAllocator a1 = a; }); - - SetCountdown(); - ExpectNoThrow([&]() { ThrowingAllocator a1 = std::move(a); }); - - UnsetCountdown(); - } -} - -TEST(ThrowingAllocatorTest, ThrowingAllocatorConstruction) { - ThrowingAllocator a; - TestOp([]() { ThrowingAllocator a; }); - TestOp([&]() { a.select_on_container_copy_construction(); }); -} - -TEST(ThrowingAllocatorTest, State) { - ThrowingAllocator a1, a2; - EXPECT_NE(a1, a2); - - auto a3 = a1; - EXPECT_EQ(a3, a1); - int* ip = a1.allocate(1); - EXPECT_EQ(a3, a1); - a3.deallocate(ip, 1); - EXPECT_EQ(a3, a1); -} - -TEST(ThrowingAllocatorTest, InVector) { - std::vector, ThrowingAllocator>> v; - for (int i = 0; i < 20; ++i) v.push_back({}); - for (int i = 0; i < 20; ++i) v.pop_back(); -} - -TEST(ThrowingAllocatorTest, InList) { - std::list, ThrowingAllocator>> l; - for (int i = 0; i < 20; ++i) l.push_back({}); - for (int i = 0; i < 20; ++i) l.pop_back(); - for (int i = 0; i < 20; ++i) l.push_front({}); - for (int i = 0; i < 20; ++i) l.pop_front(); -} - -template -struct NullaryTestValidator : public std::false_type {}; - -template -struct NullaryTestValidator< - TesterInstance, - absl::void_t().Test())>> - : public std::true_type {}; - -template -bool HasNullaryTest(const TesterInstance&) { - return NullaryTestValidator::value; -} - -void DummyOp(void*) {} - -template -struct UnaryTestValidator : public std::false_type {}; - -template -struct UnaryTestValidator< - TesterInstance, - absl::void_t().Test(DummyOp))>> - : public std::true_type {}; - -template -bool HasUnaryTest(const TesterInstance&) { - return UnaryTestValidator::value; -} - -TEST(ExceptionSafetyTesterTest, IncompleteTypesAreNotTestable) { - using T = exceptions_internal::UninitializedT; - auto op = [](T* t) {}; - auto inv = [](T*) { return testing::AssertionSuccess(); }; - auto fac = []() { return absl::make_unique(); }; - - // Test that providing operation and inveriants still does not allow for the - // the invocation of .Test() and .Test(op) because it lacks a factory - auto without_fac = - testing::MakeExceptionSafetyTester().WithOperation(op).WithContracts( - inv, testing::strong_guarantee); - EXPECT_FALSE(HasNullaryTest(without_fac)); - EXPECT_FALSE(HasUnaryTest(without_fac)); - - // Test that providing contracts and factory allows the invocation of - // .Test(op) but does not allow for .Test() because it lacks an operation - auto without_op = testing::MakeExceptionSafetyTester() - .WithContracts(inv, testing::strong_guarantee) - .WithFactory(fac); - EXPECT_FALSE(HasNullaryTest(without_op)); - EXPECT_TRUE(HasUnaryTest(without_op)); - - // Test that providing operation and factory still does not allow for the - // the invocation of .Test() and .Test(op) because it lacks contracts - auto without_inv = - testing::MakeExceptionSafetyTester().WithOperation(op).WithFactory(fac); - EXPECT_FALSE(HasNullaryTest(without_inv)); - EXPECT_FALSE(HasUnaryTest(without_inv)); -} - -struct ExampleStruct {}; - -std::unique_ptr ExampleFunctionFactory() { - return absl::make_unique(); -} - -void ExampleFunctionOperation(ExampleStruct*) {} - -testing::AssertionResult ExampleFunctionContract(ExampleStruct*) { - return testing::AssertionSuccess(); -} - -struct { - std::unique_ptr operator()() const { - return ExampleFunctionFactory(); - } -} example_struct_factory; - -struct { - void operator()(ExampleStruct*) const {} -} example_struct_operation; - -struct { - testing::AssertionResult operator()(ExampleStruct* example_struct) const { - return ExampleFunctionContract(example_struct); - } -} example_struct_contract; - -auto example_lambda_factory = []() { return ExampleFunctionFactory(); }; - -auto example_lambda_operation = [](ExampleStruct*) {}; - -auto example_lambda_contract = [](ExampleStruct* example_struct) { - return ExampleFunctionContract(example_struct); -}; - -// Testing that function references, pointers, structs with operator() and -// lambdas can all be used with ExceptionSafetyTester -TEST(ExceptionSafetyTesterTest, MixedFunctionTypes) { - // function reference - EXPECT_TRUE(testing::MakeExceptionSafetyTester() - .WithFactory(ExampleFunctionFactory) - .WithOperation(ExampleFunctionOperation) - .WithContracts(ExampleFunctionContract) - .Test()); - - // function pointer - EXPECT_TRUE(testing::MakeExceptionSafetyTester() - .WithFactory(&ExampleFunctionFactory) - .WithOperation(&ExampleFunctionOperation) - .WithContracts(&ExampleFunctionContract) - .Test()); - - // struct - EXPECT_TRUE(testing::MakeExceptionSafetyTester() - .WithFactory(example_struct_factory) - .WithOperation(example_struct_operation) - .WithContracts(example_struct_contract) - .Test()); - - // lambda - EXPECT_TRUE(testing::MakeExceptionSafetyTester() - .WithFactory(example_lambda_factory) - .WithOperation(example_lambda_operation) - .WithContracts(example_lambda_contract) - .Test()); -} - -struct NonNegative { - bool operator==(const NonNegative& other) const { return i == other.i; } - int i; -}; - -testing::AssertionResult CheckNonNegativeInvariants(NonNegative* g) { - if (g->i >= 0) { - return testing::AssertionSuccess(); - } - return testing::AssertionFailure() - << "i should be non-negative but is " << g->i; -} - -struct { - template - void operator()(T* t) const { - (*t)(); - } -} invoker; - -auto tester = - testing::MakeExceptionSafetyTester().WithOperation(invoker).WithContracts( - CheckNonNegativeInvariants); -auto strong_tester = tester.WithContracts(testing::strong_guarantee); - -struct FailsBasicGuarantee : public NonNegative { - void operator()() { - --i; - ThrowingValue<> bomb; - ++i; - } -}; - -TEST(ExceptionCheckTest, BasicGuaranteeFailure) { - EXPECT_FALSE(tester.WithInitialValue(FailsBasicGuarantee{}).Test()); -} - -struct FollowsBasicGuarantee : public NonNegative { - void operator()() { - ++i; - ThrowingValue<> bomb; - } -}; - -TEST(ExceptionCheckTest, BasicGuarantee) { - EXPECT_TRUE(tester.WithInitialValue(FollowsBasicGuarantee{}).Test()); -} - -TEST(ExceptionCheckTest, StrongGuaranteeFailure) { - EXPECT_FALSE(strong_tester.WithInitialValue(FailsBasicGuarantee{}).Test()); - EXPECT_FALSE(strong_tester.WithInitialValue(FollowsBasicGuarantee{}).Test()); -} - -struct BasicGuaranteeWithExtraContracts : public NonNegative { - // After operator(), i is incremented. If operator() throws, i is set to 9999 - void operator()() { - int old_i = i; - i = kExceptionSentinel; - ThrowingValue<> bomb; - i = ++old_i; - } - - static constexpr int kExceptionSentinel = 9999; -}; - -#ifdef ABSL_INTERNAL_NEED_REDUNDANT_CONSTEXPR_DECL -constexpr int BasicGuaranteeWithExtraContracts::kExceptionSentinel; -#endif - -TEST(ExceptionCheckTest, BasicGuaranteeWithExtraContracts) { - auto tester_with_val = - tester.WithInitialValue(BasicGuaranteeWithExtraContracts{}); - EXPECT_TRUE(tester_with_val.Test()); - EXPECT_TRUE( - tester_with_val - .WithContracts([](BasicGuaranteeWithExtraContracts* o) { - if (o->i == BasicGuaranteeWithExtraContracts::kExceptionSentinel) { - return testing::AssertionSuccess(); - } - return testing::AssertionFailure() - << "i should be " - << BasicGuaranteeWithExtraContracts::kExceptionSentinel - << ", but is " << o->i; - }) - .Test()); -} - -struct FollowsStrongGuarantee : public NonNegative { - void operator()() { ThrowingValue<> bomb; } -}; - -TEST(ExceptionCheckTest, StrongGuarantee) { - EXPECT_TRUE(tester.WithInitialValue(FollowsStrongGuarantee{}).Test()); - EXPECT_TRUE(strong_tester.WithInitialValue(FollowsStrongGuarantee{}).Test()); -} - -struct HasReset : public NonNegative { - void operator()() { - i = -1; - ThrowingValue<> bomb; - i = 1; - } - - void reset() { i = 0; } -}; - -testing::AssertionResult CheckHasResetContracts(HasReset* h) { - h->reset(); - return testing::AssertionResult(h->i == 0); -} - -TEST(ExceptionCheckTest, ModifyingChecker) { - auto set_to_1000 = [](FollowsBasicGuarantee* g) { - g->i = 1000; - return testing::AssertionSuccess(); - }; - auto is_1000 = [](FollowsBasicGuarantee* g) { - return testing::AssertionResult(g->i == 1000); - }; - auto increment = [](FollowsStrongGuarantee* g) { - ++g->i; - return testing::AssertionSuccess(); - }; - - EXPECT_FALSE(tester.WithInitialValue(FollowsBasicGuarantee{}) - .WithContracts(set_to_1000, is_1000) - .Test()); - EXPECT_TRUE(strong_tester.WithInitialValue(FollowsStrongGuarantee{}) - .WithContracts(increment) - .Test()); - EXPECT_TRUE(testing::MakeExceptionSafetyTester() - .WithInitialValue(HasReset{}) - .WithContracts(CheckHasResetContracts) - .Test(invoker)); -} - -TEST(ExceptionSafetyTesterTest, ResetsCountdown) { - auto test = - testing::MakeExceptionSafetyTester() - .WithInitialValue(ThrowingValue<>()) - .WithContracts([](ThrowingValue<>*) { return AssertionSuccess(); }) - .WithOperation([](ThrowingValue<>*) {}); - ASSERT_TRUE(test.Test()); - // If the countdown isn't reset because there were no exceptions thrown, then - // this will fail with a termination from an unhandled exception - EXPECT_TRUE(test.Test()); -} - -struct NonCopyable : public NonNegative { - NonCopyable(const NonCopyable&) = delete; - NonCopyable() : NonNegative{0} {} - - void operator()() { ThrowingValue<> bomb; } -}; - -TEST(ExceptionCheckTest, NonCopyable) { - auto factory = []() { return absl::make_unique(); }; - EXPECT_TRUE(tester.WithFactory(factory).Test()); - EXPECT_TRUE(strong_tester.WithFactory(factory).Test()); -} - -struct NonEqualityComparable : public NonNegative { - void operator()() { ThrowingValue<> bomb; } - - void ModifyOnThrow() { - ++i; - ThrowingValue<> bomb; - static_cast(bomb); - --i; - } -}; - -TEST(ExceptionCheckTest, NonEqualityComparable) { - auto nec_is_strong = [](NonEqualityComparable* nec) { - return testing::AssertionResult(nec->i == NonEqualityComparable().i); - }; - auto strong_nec_tester = tester.WithInitialValue(NonEqualityComparable{}) - .WithContracts(nec_is_strong); - - EXPECT_TRUE(strong_nec_tester.Test()); - EXPECT_FALSE(strong_nec_tester.Test( - [](NonEqualityComparable* n) { n->ModifyOnThrow(); })); -} - -template -struct ExhaustivenessTester { - void operator()() { - successes |= 1; - T b1; - static_cast(b1); - successes |= (1 << 1); - T b2; - static_cast(b2); - successes |= (1 << 2); - T b3; - static_cast(b3); - successes |= (1 << 3); - } - - bool operator==(const ExhaustivenessTester>&) const { - return true; - } - - static unsigned char successes; -}; - -struct { - template - testing::AssertionResult operator()(ExhaustivenessTester*) const { - return testing::AssertionSuccess(); - } -} CheckExhaustivenessTesterContracts; - -template -unsigned char ExhaustivenessTester::successes = 0; - -TEST(ExceptionCheckTest, Exhaustiveness) { - auto exhaust_tester = testing::MakeExceptionSafetyTester() - .WithContracts(CheckExhaustivenessTesterContracts) - .WithOperation(invoker); - - EXPECT_TRUE( - exhaust_tester.WithInitialValue(ExhaustivenessTester{}).Test()); - EXPECT_EQ(ExhaustivenessTester::successes, 0xF); - - EXPECT_TRUE( - exhaust_tester.WithInitialValue(ExhaustivenessTester>{}) - .WithContracts(testing::strong_guarantee) - .Test()); - EXPECT_EQ(ExhaustivenessTester>::successes, 0xF); -} - -struct LeaksIfCtorThrows : private exceptions_internal::TrackedObject { - LeaksIfCtorThrows() : TrackedObject(ABSL_PRETTY_FUNCTION) { - ++counter; - ThrowingValue<> v; - static_cast(v); - --counter; - } - LeaksIfCtorThrows(const LeaksIfCtorThrows&) noexcept - : TrackedObject(ABSL_PRETTY_FUNCTION) {} - static int counter; -}; -int LeaksIfCtorThrows::counter = 0; - -TEST(ExceptionCheckTest, TestLeakyCtor) { - testing::TestThrowingCtor(); - EXPECT_EQ(LeaksIfCtorThrows::counter, 1); - LeaksIfCtorThrows::counter = 0; -} - -struct Tracked : private exceptions_internal::TrackedObject { - Tracked() : TrackedObject(ABSL_PRETTY_FUNCTION) {} -}; - -TEST(ConstructorTrackerTest, CreatedBefore) { - Tracked a, b, c; - exceptions_internal::ConstructorTracker ct(exceptions_internal::countdown); -} - -TEST(ConstructorTrackerTest, CreatedAfter) { - exceptions_internal::ConstructorTracker ct(exceptions_internal::countdown); - Tracked a, b, c; -} - -TEST(ConstructorTrackerTest, NotDestroyedAfter) { - alignas(Tracked) unsigned char storage[sizeof(Tracked)]; - EXPECT_NONFATAL_FAILURE( - { - exceptions_internal::ConstructorTracker ct( - exceptions_internal::countdown); - new (&storage) Tracked(); - }, - "not destroyed"); -} - -TEST(ConstructorTrackerTest, DestroyedTwice) { - exceptions_internal::ConstructorTracker ct(exceptions_internal::countdown); - EXPECT_NONFATAL_FAILURE( - { - Tracked t; - t.~Tracked(); - }, - "re-destroyed"); -} - -TEST(ConstructorTrackerTest, ConstructedTwice) { - exceptions_internal::ConstructorTracker ct(exceptions_internal::countdown); - alignas(Tracked) unsigned char storage[sizeof(Tracked)]; - EXPECT_NONFATAL_FAILURE( - { - new (&storage) Tracked(); - new (&storage) Tracked(); - reinterpret_cast(&storage)->~Tracked(); - }, - "re-constructed"); -} - -TEST(ThrowingValueTraitsTest, RelationalOperators) { - ThrowingValue<> a, b; - EXPECT_TRUE((std::is_convertible::value)); - EXPECT_TRUE((std::is_convertible::value)); - EXPECT_TRUE((std::is_convertible::value)); - EXPECT_TRUE((std::is_convertible::value)); - EXPECT_TRUE((std::is_convertible b), bool>::value)); - EXPECT_TRUE((std::is_convertible= b), bool>::value)); -} - -TEST(ThrowingAllocatorTraitsTest, Assignablility) { - EXPECT_TRUE(absl::is_move_assignable>::value); - EXPECT_TRUE(absl::is_copy_assignable>::value); - EXPECT_TRUE(std::is_nothrow_move_assignable>::value); - EXPECT_TRUE(std::is_nothrow_copy_assignable>::value); -} - -} // namespace - -} // namespace testing - -#endif // ABSL_HAVE_EXCEPTIONS diff --git a/src/third_party/abseil-cpp/absl/base/inline_variable_test.cc b/src/third_party/abseil-cpp/absl/base/inline_variable_test.cc deleted file mode 100644 index 37a40e1e40..0000000000 --- a/src/third_party/abseil-cpp/absl/base/inline_variable_test.cc +++ /dev/null @@ -1,64 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include - -#include "absl/base/internal/inline_variable.h" -#include "absl/base/internal/inline_variable_testing.h" - -#include "gtest/gtest.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace inline_variable_testing_internal { -namespace { - -TEST(InlineVariableTest, Constexpr) { - static_assert(inline_variable_foo.value == 5, ""); - static_assert(other_inline_variable_foo.value == 5, ""); - static_assert(inline_variable_int == 5, ""); - static_assert(other_inline_variable_int == 5, ""); -} - -TEST(InlineVariableTest, DefaultConstructedIdentityEquality) { - EXPECT_EQ(get_foo_a().value, 5); - EXPECT_EQ(get_foo_b().value, 5); - EXPECT_EQ(&get_foo_a(), &get_foo_b()); -} - -TEST(InlineVariableTest, DefaultConstructedIdentityInequality) { - EXPECT_NE(&inline_variable_foo, &other_inline_variable_foo); -} - -TEST(InlineVariableTest, InitializedIdentityEquality) { - EXPECT_EQ(get_int_a(), 5); - EXPECT_EQ(get_int_b(), 5); - EXPECT_EQ(&get_int_a(), &get_int_b()); -} - -TEST(InlineVariableTest, InitializedIdentityInequality) { - EXPECT_NE(&inline_variable_int, &other_inline_variable_int); -} - -TEST(InlineVariableTest, FunPtrType) { - static_assert( - std::is_same::type>::value, - ""); -} - -} // namespace -} // namespace inline_variable_testing_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/src/third_party/abseil-cpp/absl/base/inline_variable_test_a.cc b/src/third_party/abseil-cpp/absl/base/inline_variable_test_a.cc deleted file mode 100644 index f96a58d9b4..0000000000 --- a/src/third_party/abseil-cpp/absl/base/inline_variable_test_a.cc +++ /dev/null @@ -1,27 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/base/internal/inline_variable_testing.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace inline_variable_testing_internal { - -const Foo& get_foo_a() { return inline_variable_foo; } - -const int& get_int_a() { return inline_variable_int; } - -} // namespace inline_variable_testing_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/src/third_party/abseil-cpp/absl/base/inline_variable_test_b.cc b/src/third_party/abseil-cpp/absl/base/inline_variable_test_b.cc deleted file mode 100644 index 038adc30a9..0000000000 --- a/src/third_party/abseil-cpp/absl/base/inline_variable_test_b.cc +++ /dev/null @@ -1,27 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/base/internal/inline_variable_testing.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace inline_variable_testing_internal { - -const Foo& get_foo_b() { return inline_variable_foo; } - -const int& get_int_b() { return inline_variable_int; } - -} // namespace inline_variable_testing_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/src/third_party/abseil-cpp/absl/base/internal/atomic_hook.h b/src/third_party/abseil-cpp/absl/base/internal/atomic_hook.h deleted file mode 100644 index ae21cd7fe5..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/atomic_hook.h +++ /dev/null @@ -1,200 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#ifndef ABSL_BASE_INTERNAL_ATOMIC_HOOK_H_ -#define ABSL_BASE_INTERNAL_ATOMIC_HOOK_H_ - -#include -#include -#include -#include - -#include "absl/base/attributes.h" -#include "absl/base/config.h" - -#if defined(_MSC_VER) && !defined(__clang__) -#define ABSL_HAVE_WORKING_CONSTEXPR_STATIC_INIT 0 -#else -#define ABSL_HAVE_WORKING_CONSTEXPR_STATIC_INIT 1 -#endif - -#if defined(_MSC_VER) -#define ABSL_HAVE_WORKING_ATOMIC_POINTER 0 -#else -#define ABSL_HAVE_WORKING_ATOMIC_POINTER 1 -#endif - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace base_internal { - -template -class AtomicHook; - -// To workaround AtomicHook not being constant-initializable on some platforms, -// prefer to annotate instances with `ABSL_INTERNAL_ATOMIC_HOOK_ATTRIBUTES` -// instead of `ABSL_CONST_INIT`. -#if ABSL_HAVE_WORKING_CONSTEXPR_STATIC_INIT -#define ABSL_INTERNAL_ATOMIC_HOOK_ATTRIBUTES ABSL_CONST_INIT -#else -#define ABSL_INTERNAL_ATOMIC_HOOK_ATTRIBUTES -#endif - -// `AtomicHook` is a helper class, templatized on a raw function pointer type, -// for implementing Abseil customization hooks. It is a callable object that -// dispatches to the registered hook. Objects of type `AtomicHook` must have -// static or thread storage duration. -// -// A default constructed object performs a no-op (and returns a default -// constructed object) if no hook has been registered. -// -// Hooks can be pre-registered via constant initialization, for example: -// -// ABSL_INTERNAL_ATOMIC_HOOK_ATTRIBUTES static AtomicHook -// my_hook(DefaultAction); -// -// and then changed at runtime via a call to `Store()`. -// -// Reads and writes guarantee memory_order_acquire/memory_order_release -// semantics. -template -class AtomicHook { - public: - using FnPtr = ReturnType (*)(Args...); - - // Constructs an object that by default performs a no-op (and - // returns a default constructed object) when no hook as been registered. - constexpr AtomicHook() : AtomicHook(DummyFunction) {} - - // Constructs an object that by default dispatches to/returns the - // pre-registered default_fn when no hook has been registered at runtime. -#if ABSL_HAVE_WORKING_ATOMIC_POINTER && ABSL_HAVE_WORKING_CONSTEXPR_STATIC_INIT - explicit constexpr AtomicHook(FnPtr default_fn) - : hook_(default_fn), default_fn_(default_fn) {} -#elif ABSL_HAVE_WORKING_CONSTEXPR_STATIC_INIT - explicit constexpr AtomicHook(FnPtr default_fn) - : hook_(kUninitialized), default_fn_(default_fn) {} -#else - // As of January 2020, on all known versions of MSVC this constructor runs in - // the global constructor sequence. If `Store()` is called by a dynamic - // initializer, we want to preserve the value, even if this constructor runs - // after the call to `Store()`. If not, `hook_` will be - // zero-initialized by the linker and we have no need to set it. - // https://developercommunity.visualstudio.com/content/problem/336946/class-with-constexpr-constructor-not-using-static.html - explicit constexpr AtomicHook(FnPtr default_fn) - : /* hook_(deliberately omitted), */ default_fn_(default_fn) { - static_assert(kUninitialized == 0, "here we rely on zero-initialization"); - } -#endif - - // Stores the provided function pointer as the value for this hook. - // - // This is intended to be called once. Multiple calls are legal only if the - // same function pointer is provided for each call. The store is implemented - // as a memory_order_release operation, and read accesses are implemented as - // memory_order_acquire. - void Store(FnPtr fn) { - bool success = DoStore(fn); - static_cast(success); - assert(success); - } - - // Invokes the registered callback. If no callback has yet been registered, a - // default-constructed object of the appropriate type is returned instead. - template - ReturnType operator()(CallArgs&&... args) const { - return DoLoad()(std::forward(args)...); - } - - // Returns the registered callback, or nullptr if none has been registered. - // Useful if client code needs to conditionalize behavior based on whether a - // callback was registered. - // - // Note that atomic_hook.Load()() and atomic_hook() have different semantics: - // operator()() will perform a no-op if no callback was registered, while - // Load()() will dereference a null function pointer. Prefer operator()() to - // Load()() unless you must conditionalize behavior on whether a hook was - // registered. - FnPtr Load() const { - FnPtr ptr = DoLoad(); - return (ptr == DummyFunction) ? nullptr : ptr; - } - - private: - static ReturnType DummyFunction(Args...) { - return ReturnType(); - } - - // Current versions of MSVC (as of September 2017) have a broken - // implementation of std::atomic: Its constructor attempts to do the - // equivalent of a reinterpret_cast in a constexpr context, which is not - // allowed. - // - // This causes an issue when building with LLVM under Windows. To avoid this, - // we use a less-efficient, intptr_t-based implementation on Windows. -#if ABSL_HAVE_WORKING_ATOMIC_POINTER - // Return the stored value, or DummyFunction if no value has been stored. - FnPtr DoLoad() const { return hook_.load(std::memory_order_acquire); } - - // Store the given value. Returns false if a different value was already - // stored to this object. - bool DoStore(FnPtr fn) { - assert(fn); - FnPtr expected = default_fn_; - const bool store_succeeded = hook_.compare_exchange_strong( - expected, fn, std::memory_order_acq_rel, std::memory_order_acquire); - const bool same_value_already_stored = (expected == fn); - return store_succeeded || same_value_already_stored; - } - - std::atomic hook_; -#else // !ABSL_HAVE_WORKING_ATOMIC_POINTER - // Use a sentinel value unlikely to be the address of an actual function. - static constexpr intptr_t kUninitialized = 0; - - static_assert(sizeof(intptr_t) >= sizeof(FnPtr), - "intptr_t can't contain a function pointer"); - - FnPtr DoLoad() const { - const intptr_t value = hook_.load(std::memory_order_acquire); - if (value == kUninitialized) { - return default_fn_; - } - return reinterpret_cast(value); - } - - bool DoStore(FnPtr fn) { - assert(fn); - const auto value = reinterpret_cast(fn); - intptr_t expected = kUninitialized; - const bool store_succeeded = hook_.compare_exchange_strong( - expected, value, std::memory_order_acq_rel, std::memory_order_acquire); - const bool same_value_already_stored = (expected == value); - return store_succeeded || same_value_already_stored; - } - - std::atomic hook_; -#endif - - const FnPtr default_fn_; -}; - -#undef ABSL_HAVE_WORKING_ATOMIC_POINTER -#undef ABSL_HAVE_WORKING_CONSTEXPR_STATIC_INIT - -} // namespace base_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_BASE_INTERNAL_ATOMIC_HOOK_H_ diff --git a/src/third_party/abseil-cpp/absl/base/internal/atomic_hook_test.cc b/src/third_party/abseil-cpp/absl/base/internal/atomic_hook_test.cc deleted file mode 100644 index e577a8fd93..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/atomic_hook_test.cc +++ /dev/null @@ -1,97 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/base/internal/atomic_hook.h" - -#include "gmock/gmock.h" -#include "gtest/gtest.h" -#include "absl/base/attributes.h" -#include "absl/base/internal/atomic_hook_test_helper.h" - -namespace { - -using ::testing::Eq; - -int value = 0; -void TestHook(int x) { value = x; } - -TEST(AtomicHookTest, NoDefaultFunction) { - ABSL_INTERNAL_ATOMIC_HOOK_ATTRIBUTES static absl::base_internal::AtomicHook< - void (*)(int)> - hook; - value = 0; - - // Test the default DummyFunction. - EXPECT_TRUE(hook.Load() == nullptr); - EXPECT_EQ(value, 0); - hook(1); - EXPECT_EQ(value, 0); - - // Test a stored hook. - hook.Store(TestHook); - EXPECT_TRUE(hook.Load() == TestHook); - EXPECT_EQ(value, 0); - hook(1); - EXPECT_EQ(value, 1); - - // Calling Store() with the same hook should not crash. - hook.Store(TestHook); - EXPECT_TRUE(hook.Load() == TestHook); - EXPECT_EQ(value, 1); - hook(2); - EXPECT_EQ(value, 2); -} - -TEST(AtomicHookTest, WithDefaultFunction) { - // Set the default value to TestHook at compile-time. - ABSL_INTERNAL_ATOMIC_HOOK_ATTRIBUTES static absl::base_internal::AtomicHook< - void (*)(int)> - hook(TestHook); - value = 0; - - // Test the default value is TestHook. - EXPECT_TRUE(hook.Load() == TestHook); - EXPECT_EQ(value, 0); - hook(1); - EXPECT_EQ(value, 1); - - // Calling Store() with the same hook should not crash. - hook.Store(TestHook); - EXPECT_TRUE(hook.Load() == TestHook); - EXPECT_EQ(value, 1); - hook(2); - EXPECT_EQ(value, 2); -} - -ABSL_CONST_INIT int override_func_calls = 0; -void OverrideFunc() { override_func_calls++; } -static struct OverrideInstaller { - OverrideInstaller() { absl::atomic_hook_internal::func.Store(OverrideFunc); } -} override_installer; - -TEST(AtomicHookTest, DynamicInitFromAnotherTU) { - // MSVC 14.2 doesn't do constexpr static init correctly; in particular it - // tends to sequence static init (i.e. defaults) of `AtomicHook` objects - // after their dynamic init (i.e. overrides), overwriting whatever value was - // written during dynamic init. This regression test validates the fix. - // https://developercommunity.visualstudio.com/content/problem/336946/class-with-constexpr-constructor-not-using-static.html - EXPECT_THAT(absl::atomic_hook_internal::default_func_calls, Eq(0)); - EXPECT_THAT(override_func_calls, Eq(0)); - absl::atomic_hook_internal::func(); - EXPECT_THAT(absl::atomic_hook_internal::default_func_calls, Eq(0)); - EXPECT_THAT(override_func_calls, Eq(1)); - EXPECT_THAT(absl::atomic_hook_internal::func.Load(), Eq(OverrideFunc)); -} - -} // namespace diff --git a/src/third_party/abseil-cpp/absl/base/internal/atomic_hook_test_helper.cc b/src/third_party/abseil-cpp/absl/base/internal/atomic_hook_test_helper.cc deleted file mode 100644 index 537d47cd2d..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/atomic_hook_test_helper.cc +++ /dev/null @@ -1,32 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/base/internal/atomic_hook_test_helper.h" - -#include "absl/base/attributes.h" -#include "absl/base/internal/atomic_hook.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace atomic_hook_internal { - -ABSL_INTERNAL_ATOMIC_HOOK_ATTRIBUTES absl::base_internal::AtomicHook - func(DefaultFunc); -ABSL_CONST_INIT int default_func_calls = 0; -void DefaultFunc() { default_func_calls++; } -void RegisterFunc(VoidF f) { func.Store(f); } - -} // namespace atomic_hook_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/src/third_party/abseil-cpp/absl/base/internal/atomic_hook_test_helper.h b/src/third_party/abseil-cpp/absl/base/internal/atomic_hook_test_helper.h deleted file mode 100644 index c72015ef96..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/atomic_hook_test_helper.h +++ /dev/null @@ -1,34 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#ifndef ABSL_BASE_INTERNAL_ATOMIC_HOOK_TEST_HELPER_H_ -#define ABSL_BASE_INTERNAL_ATOMIC_HOOK_TEST_HELPER_H_ - -#include "absl/base/internal/atomic_hook.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace atomic_hook_internal { - -using VoidF = void (*)(); -extern absl::base_internal::AtomicHook func; -extern int default_func_calls; -void DefaultFunc(); -void RegisterFunc(VoidF func); - -} // namespace atomic_hook_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_BASE_INTERNAL_ATOMIC_HOOK_TEST_HELPER_H_ diff --git a/src/third_party/abseil-cpp/absl/base/internal/cmake_thread_test.cc b/src/third_party/abseil-cpp/absl/base/internal/cmake_thread_test.cc deleted file mode 100644 index f70bb24eb7..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/cmake_thread_test.cc +++ /dev/null @@ -1,22 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include -#include "absl/base/internal/thread_identity.h" - -int main() { - auto* tid = absl::base_internal::CurrentThreadIdentityIfPresent(); - // Make sure the above call can't be optimized out - std::cout << (void*)tid << std::endl; -} diff --git a/src/third_party/abseil-cpp/absl/base/internal/cycleclock.cc b/src/third_party/abseil-cpp/absl/base/internal/cycleclock.cc deleted file mode 100644 index 902e3f5ef1..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/cycleclock.cc +++ /dev/null @@ -1,77 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// The implementation of CycleClock::Frequency. -// -// NOTE: only i386 and x86_64 have been well tested. -// PPC, sparc, alpha, and ia64 are based on -// http://peter.kuscsik.com/wordpress/?p=14 -// with modifications by m3b. See also -// https://setisvn.ssl.berkeley.edu/svn/lib/fftw-3.0.1/kernel/cycle.h - -#include "absl/base/internal/cycleclock.h" - -#include -#include // NOLINT(build/c++11) - -#include "absl/base/attributes.h" -#include "absl/base/config.h" -#include "absl/base/internal/unscaledcycleclock.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace base_internal { - -#if ABSL_USE_UNSCALED_CYCLECLOCK - -#ifdef ABSL_INTERNAL_NEED_REDUNDANT_CONSTEXPR_DECL -constexpr int32_t CycleClock::kShift; -constexpr double CycleClock::kFrequencyScale; -#endif - -ABSL_CONST_INIT std::atomic - CycleClock::cycle_clock_source_{nullptr}; - -void CycleClockSource::Register(CycleClockSourceFunc source) { - // Corresponds to the load(std::memory_order_acquire) in LoadCycleClockSource. - CycleClock::cycle_clock_source_.store(source, std::memory_order_release); -} - -#ifdef _WIN32 -int64_t CycleClock::Now() { - auto fn = LoadCycleClockSource(); - if (fn == nullptr) { - return base_internal::UnscaledCycleClock::Now() >> kShift; - } - return fn() >> kShift; -} -#endif - -#else - -int64_t CycleClock::Now() { - return std::chrono::duration_cast( - std::chrono::steady_clock::now().time_since_epoch()) - .count(); -} - -double CycleClock::Frequency() { - return 1e9; -} - -#endif - -} // namespace base_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/src/third_party/abseil-cpp/absl/base/internal/cycleclock.h b/src/third_party/abseil-cpp/absl/base/internal/cycleclock.h deleted file mode 100644 index cbfdf57998..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/cycleclock.h +++ /dev/null @@ -1,144 +0,0 @@ -// -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// - -// ----------------------------------------------------------------------------- -// File: cycleclock.h -// ----------------------------------------------------------------------------- -// -// This header file defines a `CycleClock`, which yields the value and frequency -// of a cycle counter that increments at a rate that is approximately constant. -// -// NOTE: -// -// The cycle counter frequency is not necessarily related to the core clock -// frequency and should not be treated as such. That is, `CycleClock` cycles are -// not necessarily "CPU cycles" and code should not rely on that behavior, even -// if experimentally observed. -// -// An arbitrary offset may have been added to the counter at power on. -// -// On some platforms, the rate and offset of the counter may differ -// slightly when read from different CPUs of a multiprocessor. Usually, -// we try to ensure that the operating system adjusts values periodically -// so that values agree approximately. If you need stronger guarantees, -// consider using alternate interfaces. -// -// The CPU is not required to maintain the ordering of a cycle counter read -// with respect to surrounding instructions. - -#ifndef ABSL_BASE_INTERNAL_CYCLECLOCK_H_ -#define ABSL_BASE_INTERNAL_CYCLECLOCK_H_ - -#include -#include - -#include "absl/base/attributes.h" -#include "absl/base/config.h" -#include "absl/base/internal/cycleclock_config.h" -#include "absl/base/internal/unscaledcycleclock.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace base_internal { - -using CycleClockSourceFunc = int64_t (*)(); - -// ----------------------------------------------------------------------------- -// CycleClock -// ----------------------------------------------------------------------------- -class CycleClock { - public: - // CycleClock::Now() - // - // Returns the value of a cycle counter that counts at a rate that is - // approximately constant. - static int64_t Now(); - - // CycleClock::Frequency() - // - // Returns the amount by which `CycleClock::Now()` increases per second. Note - // that this value may not necessarily match the core CPU clock frequency. - static double Frequency(); - - private: -#if ABSL_USE_UNSCALED_CYCLECLOCK - static CycleClockSourceFunc LoadCycleClockSource(); - - static constexpr int32_t kShift = kCycleClockShift; - static constexpr double kFrequencyScale = kCycleClockFrequencyScale; - - ABSL_CONST_INIT static std::atomic cycle_clock_source_; -#endif // ABSL_USE_UNSCALED_CYCLECLOC - - CycleClock() = delete; // no instances - CycleClock(const CycleClock&) = delete; - CycleClock& operator=(const CycleClock&) = delete; - - friend class CycleClockSource; -}; - -class CycleClockSource { - private: - // CycleClockSource::Register() - // - // Register a function that provides an alternate source for the unscaled CPU - // cycle count value. The source function must be async signal safe, must not - // call CycleClock::Now(), and must have a frequency that matches that of the - // unscaled clock used by CycleClock. A nullptr value resets CycleClock to use - // the default source. - static void Register(CycleClockSourceFunc source); -}; - -#if ABSL_USE_UNSCALED_CYCLECLOCK - -inline CycleClockSourceFunc CycleClock::LoadCycleClockSource() { -#if !defined(__x86_64__) - // Optimize for the common case (no callback) by first doing a relaxed load; - // this is significantly faster on non-x86 platforms. - if (cycle_clock_source_.load(std::memory_order_relaxed) == nullptr) { - return nullptr; - } -#endif // !defined(__x86_64__) - - // This corresponds to the store(std::memory_order_release) in - // CycleClockSource::Register, and makes sure that any updates made prior to - // registering the callback are visible to this thread before the callback - // is invoked. - return cycle_clock_source_.load(std::memory_order_acquire); -} - -// Accessing globals in inlined code in Window DLLs is problematic. -#ifndef _WIN32 -inline int64_t CycleClock::Now() { - auto fn = LoadCycleClockSource(); - if (fn == nullptr) { - return base_internal::UnscaledCycleClock::Now() >> kShift; - } - return fn() >> kShift; -} -#endif - -inline double CycleClock::Frequency() { - return kFrequencyScale * base_internal::UnscaledCycleClock::Frequency(); -} - -#endif // ABSL_USE_UNSCALED_CYCLECLOCK - -} // namespace base_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_BASE_INTERNAL_CYCLECLOCK_H_ diff --git a/src/third_party/abseil-cpp/absl/base/internal/cycleclock_config.h b/src/third_party/abseil-cpp/absl/base/internal/cycleclock_config.h deleted file mode 100644 index 191112b58e..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/cycleclock_config.h +++ /dev/null @@ -1,55 +0,0 @@ -// Copyright 2022 The Abseil Authors -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#ifndef ABSL_BASE_INTERNAL_CYCLECLOCK_CONFIG_H_ -#define ABSL_BASE_INTERNAL_CYCLECLOCK_CONFIG_H_ - -#include - -#include "absl/base/config.h" -#include "absl/base/internal/inline_variable.h" -#include "absl/base/internal/unscaledcycleclock_config.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace base_internal { - -#if ABSL_USE_UNSCALED_CYCLECLOCK -#ifdef NDEBUG -#ifdef ABSL_INTERNAL_UNSCALED_CYCLECLOCK_FREQUENCY_IS_CPU_FREQUENCY -// Not debug mode and the UnscaledCycleClock frequency is the CPU -// frequency. Scale the CycleClock to prevent overflow if someone -// tries to represent the time as cycles since the Unix epoch. -ABSL_INTERNAL_INLINE_CONSTEXPR(int32_t, kCycleClockShift, 1); -#else -// Not debug mode and the UnscaledCycleClock isn't operating at the -// raw CPU frequency. There is no need to do any scaling, so don't -// needlessly sacrifice precision. -ABSL_INTERNAL_INLINE_CONSTEXPR(int32_t, kCycleClockShift, 0); -#endif -#else // NDEBUG -// In debug mode use a different shift to discourage depending on a -// particular shift value. -ABSL_INTERNAL_INLINE_CONSTEXPR(int32_t, kCycleClockShift, 2); -#endif // NDEBUG - -ABSL_INTERNAL_INLINE_CONSTEXPR(double, kCycleClockFrequencyScale, - 1.0 / (1 << kCycleClockShift)); -#endif // ABSL_USE_UNSCALED_CYCLECLOC - -} // namespace base_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_BASE_INTERNAL_CYCLECLOCK_CONFIG_H_ diff --git a/src/third_party/abseil-cpp/absl/base/internal/direct_mmap.h b/src/third_party/abseil-cpp/absl/base/internal/direct_mmap.h deleted file mode 100644 index 815b8d23ba..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/direct_mmap.h +++ /dev/null @@ -1,170 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// Functions for directly invoking mmap() via syscall, avoiding the case where -// mmap() has been locally overridden. - -#ifndef ABSL_BASE_INTERNAL_DIRECT_MMAP_H_ -#define ABSL_BASE_INTERNAL_DIRECT_MMAP_H_ - -#include "absl/base/config.h" - -#ifdef ABSL_HAVE_MMAP - -#include - -#ifdef __linux__ - -#include -#ifdef __BIONIC__ -#include -#else -#include -#endif - -#include -#include -#include -#include -#include - -#ifdef __mips__ -// Include definitions of the ABI currently in use. -#if defined(__BIONIC__) || !defined(__GLIBC__) -// Android doesn't have sgidefs.h, but does have asm/sgidefs.h, which has the -// definitions we need. -#include -#else -#include -#endif // __BIONIC__ || !__GLIBC__ -#endif // __mips__ - -// SYS_mmap and SYS_munmap are not defined in Android. -#ifdef __BIONIC__ -extern "C" void* __mmap2(void*, size_t, int, int, int, size_t); -#if defined(__NR_mmap) && !defined(SYS_mmap) -#define SYS_mmap __NR_mmap -#endif -#ifndef SYS_munmap -#define SYS_munmap __NR_munmap -#endif -#endif // __BIONIC__ - -#if defined(__NR_mmap2) && !defined(SYS_mmap2) -#define SYS_mmap2 __NR_mmap2 -#endif - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace base_internal { - -// Platform specific logic extracted from -// https://chromium.googlesource.com/linux-syscall-support/+/master/linux_syscall_support.h -inline void* DirectMmap(void* start, size_t length, int prot, int flags, int fd, - off64_t offset) noexcept { -#if defined(__i386__) || defined(__ARM_ARCH_3__) || defined(__ARM_EABI__) || \ - defined(__m68k__) || defined(__sh__) || \ - (defined(__hppa__) && !defined(__LP64__)) || \ - (defined(__mips__) && _MIPS_SIM == _MIPS_SIM_ABI32) || \ - (defined(__PPC__) && !defined(__PPC64__)) || \ - (defined(__riscv) && __riscv_xlen == 32) || \ - (defined(__s390__) && !defined(__s390x__)) || \ - (defined(__sparc__) && !defined(__arch64__)) - // On these architectures, implement mmap with mmap2. - static int pagesize = 0; - if (pagesize == 0) { -#if defined(__wasm__) || defined(__asmjs__) - pagesize = getpagesize(); -#else - pagesize = sysconf(_SC_PAGESIZE); -#endif - } - if (offset < 0 || offset % pagesize != 0) { - errno = EINVAL; - return MAP_FAILED; - } -#ifdef __BIONIC__ - // SYS_mmap2 has problems on Android API level <= 16. - // Workaround by invoking __mmap2() instead. - return __mmap2(start, length, prot, flags, fd, - static_cast(offset / pagesize)); -#else - return reinterpret_cast( - syscall(SYS_mmap2, start, length, prot, flags, fd, - static_cast(offset / pagesize))); -#endif -#elif defined(__s390x__) - // On s390x, mmap() arguments are passed in memory. - unsigned long buf[6] = {reinterpret_cast(start), // NOLINT - static_cast(length), // NOLINT - static_cast(prot), // NOLINT - static_cast(flags), // NOLINT - static_cast(fd), // NOLINT - static_cast(offset)}; // NOLINT - return reinterpret_cast(syscall(SYS_mmap, buf)); -#elif defined(__x86_64__) -// The x32 ABI has 32 bit longs, but the syscall interface is 64 bit. -// We need to explicitly cast to an unsigned 64 bit type to avoid implicit -// sign extension. We can't cast pointers directly because those are -// 32 bits, and gcc will dump ugly warnings about casting from a pointer -// to an integer of a different size. We also need to make sure __off64_t -// isn't truncated to 32-bits under x32. -#define MMAP_SYSCALL_ARG(x) ((uint64_t)(uintptr_t)(x)) - return reinterpret_cast( - syscall(SYS_mmap, MMAP_SYSCALL_ARG(start), MMAP_SYSCALL_ARG(length), - MMAP_SYSCALL_ARG(prot), MMAP_SYSCALL_ARG(flags), - MMAP_SYSCALL_ARG(fd), static_cast(offset))); -#undef MMAP_SYSCALL_ARG -#else // Remaining 64-bit aritectures. - static_assert(sizeof(unsigned long) == 8, "Platform is not 64-bit"); - return reinterpret_cast( - syscall(SYS_mmap, start, length, prot, flags, fd, offset)); -#endif -} - -inline int DirectMunmap(void* start, size_t length) { - return static_cast(syscall(SYS_munmap, start, length)); -} - -} // namespace base_internal -ABSL_NAMESPACE_END -} // namespace absl - -#else // !__linux__ - -// For non-linux platforms where we have mmap, just dispatch directly to the -// actual mmap()/munmap() methods. - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace base_internal { - -inline void* DirectMmap(void* start, size_t length, int prot, int flags, int fd, - off_t offset) { - return mmap(start, length, prot, flags, fd, offset); -} - -inline int DirectMunmap(void* start, size_t length) { - return munmap(start, length); -} - -} // namespace base_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // __linux__ - -#endif // ABSL_HAVE_MMAP - -#endif // ABSL_BASE_INTERNAL_DIRECT_MMAP_H_ diff --git a/src/third_party/abseil-cpp/absl/base/internal/dynamic_annotations.h b/src/third_party/abseil-cpp/absl/base/internal/dynamic_annotations.h deleted file mode 100644 index b23c5ec1c4..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/dynamic_annotations.h +++ /dev/null @@ -1,398 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// This file defines dynamic annotations for use with dynamic analysis tool -// such as valgrind, PIN, etc. -// -// Dynamic annotation is a source code annotation that affects the generated -// code (that is, the annotation is not a comment). Each such annotation is -// attached to a particular instruction and/or to a particular object (address) -// in the program. -// -// The annotations that should be used by users are macros in all upper-case -// (e.g., ANNOTATE_THREAD_NAME). -// -// Actual implementation of these macros may differ depending on the dynamic -// analysis tool being used. -// -// This file supports the following configurations: -// - Dynamic Annotations enabled (with static thread-safety warnings disabled). -// In this case, macros expand to functions implemented by Thread Sanitizer, -// when building with TSan. When not provided an external implementation, -// dynamic_annotations.cc provides no-op implementations. -// -// - Static Clang thread-safety warnings enabled. -// When building with a Clang compiler that supports thread-safety warnings, -// a subset of annotations can be statically-checked at compile-time. We -// expand these macros to static-inline functions that can be analyzed for -// thread-safety, but afterwards elided when building the final binary. -// -// - All annotations are disabled. -// If neither Dynamic Annotations nor Clang thread-safety warnings are -// enabled, then all annotation-macros expand to empty. - -#ifndef ABSL_BASE_INTERNAL_DYNAMIC_ANNOTATIONS_H_ -#define ABSL_BASE_INTERNAL_DYNAMIC_ANNOTATIONS_H_ - -#include - -#include "absl/base/config.h" - -// ------------------------------------------------------------------------- -// Decide which features are enabled - -#ifndef DYNAMIC_ANNOTATIONS_ENABLED -#define DYNAMIC_ANNOTATIONS_ENABLED 0 -#endif - -#if defined(__clang__) && !defined(SWIG) -#define ABSL_INTERNAL_IGNORE_READS_ATTRIBUTE_ENABLED 1 -#endif - -#if DYNAMIC_ANNOTATIONS_ENABLED != 0 - -#define ABSL_INTERNAL_RACE_ANNOTATIONS_ENABLED 1 -#define ABSL_INTERNAL_READS_ANNOTATIONS_ENABLED 1 -#define ABSL_INTERNAL_WRITES_ANNOTATIONS_ENABLED 1 -#define ABSL_INTERNAL_ANNOTALYSIS_ENABLED 0 -#define ABSL_INTERNAL_READS_WRITES_ANNOTATIONS_ENABLED 1 - -#else - -#define ABSL_INTERNAL_RACE_ANNOTATIONS_ENABLED 0 -#define ABSL_INTERNAL_READS_ANNOTATIONS_ENABLED 0 -#define ABSL_INTERNAL_WRITES_ANNOTATIONS_ENABLED 0 - -// Clang provides limited support for static thread-safety analysis through a -// feature called Annotalysis. We configure macro-definitions according to -// whether Annotalysis support is available. When running in opt-mode, GCC -// will issue a warning, if these attributes are compiled. Only include them -// when compiling using Clang. - -// ANNOTALYSIS_ENABLED == 1 when IGNORE_READ_ATTRIBUTE_ENABLED == 1 -#define ABSL_INTERNAL_ANNOTALYSIS_ENABLED \ - defined(ABSL_INTERNAL_IGNORE_READS_ATTRIBUTE_ENABLED) -// Read/write annotations are enabled in Annotalysis mode; disabled otherwise. -#define ABSL_INTERNAL_READS_WRITES_ANNOTATIONS_ENABLED \ - ABSL_INTERNAL_ANNOTALYSIS_ENABLED -#endif - -// Memory annotations are also made available to LLVM's Memory Sanitizer -#if defined(ABSL_HAVE_MEMORY_SANITIZER) && !defined(__native_client__) -#define ABSL_INTERNAL_MEMORY_ANNOTATIONS_ENABLED 1 -#endif - -#ifndef ABSL_INTERNAL_MEMORY_ANNOTATIONS_ENABLED -#define ABSL_INTERNAL_MEMORY_ANNOTATIONS_ENABLED 0 -#endif - -#ifdef __cplusplus -#define ABSL_INTERNAL_BEGIN_EXTERN_C extern "C" { -#define ABSL_INTERNAL_END_EXTERN_C } // extern "C" -#define ABSL_INTERNAL_GLOBAL_SCOPED(F) ::F -#define ABSL_INTERNAL_STATIC_INLINE inline -#else -#define ABSL_INTERNAL_BEGIN_EXTERN_C // empty -#define ABSL_INTERNAL_END_EXTERN_C // empty -#define ABSL_INTERNAL_GLOBAL_SCOPED(F) F -#define ABSL_INTERNAL_STATIC_INLINE static inline -#endif - -// ------------------------------------------------------------------------- -// Define race annotations. - -#if ABSL_INTERNAL_RACE_ANNOTATIONS_ENABLED == 1 - -// ------------------------------------------------------------- -// Annotations that suppress errors. It is usually better to express the -// program's synchronization using the other annotations, but these can be used -// when all else fails. - -// Report that we may have a benign race at `pointer`, with size -// "sizeof(*(pointer))". `pointer` must be a non-void* pointer. Insert at the -// point where `pointer` has been allocated, preferably close to the point -// where the race happens. See also ANNOTATE_BENIGN_RACE_STATIC. -#define ANNOTATE_BENIGN_RACE(pointer, description) \ - ABSL_INTERNAL_GLOBAL_SCOPED(AnnotateBenignRaceSized) \ - (__FILE__, __LINE__, pointer, sizeof(*(pointer)), description) - -// Same as ANNOTATE_BENIGN_RACE(`address`, `description`), but applies to -// the memory range [`address`, `address`+`size`). -#define ANNOTATE_BENIGN_RACE_SIZED(address, size, description) \ - ABSL_INTERNAL_GLOBAL_SCOPED(AnnotateBenignRaceSized) \ - (__FILE__, __LINE__, address, size, description) - -// Enable (`enable`!=0) or disable (`enable`==0) race detection for all threads. -// This annotation could be useful if you want to skip expensive race analysis -// during some period of program execution, e.g. during initialization. -#define ANNOTATE_ENABLE_RACE_DETECTION(enable) \ - ABSL_INTERNAL_GLOBAL_SCOPED(AnnotateEnableRaceDetection) \ - (__FILE__, __LINE__, enable) - -// ------------------------------------------------------------- -// Annotations useful for debugging. - -// Report the current thread `name` to a race detector. -#define ANNOTATE_THREAD_NAME(name) \ - ABSL_INTERNAL_GLOBAL_SCOPED(AnnotateThreadName)(__FILE__, __LINE__, name) - -// ------------------------------------------------------------- -// Annotations useful when implementing locks. They are not normally needed by -// modules that merely use locks. The `lock` argument is a pointer to the lock -// object. - -// Report that a lock has been created at address `lock`. -#define ANNOTATE_RWLOCK_CREATE(lock) \ - ABSL_INTERNAL_GLOBAL_SCOPED(AnnotateRWLockCreate)(__FILE__, __LINE__, lock) - -// Report that a linker initialized lock has been created at address `lock`. -#ifdef ABSL_HAVE_THREAD_SANITIZER -#define ANNOTATE_RWLOCK_CREATE_STATIC(lock) \ - ABSL_INTERNAL_GLOBAL_SCOPED(AnnotateRWLockCreateStatic) \ - (__FILE__, __LINE__, lock) -#else -#define ANNOTATE_RWLOCK_CREATE_STATIC(lock) ANNOTATE_RWLOCK_CREATE(lock) -#endif - -// Report that the lock at address `lock` is about to be destroyed. -#define ANNOTATE_RWLOCK_DESTROY(lock) \ - ABSL_INTERNAL_GLOBAL_SCOPED(AnnotateRWLockDestroy)(__FILE__, __LINE__, lock) - -// Report that the lock at address `lock` has been acquired. -// `is_w`=1 for writer lock, `is_w`=0 for reader lock. -#define ANNOTATE_RWLOCK_ACQUIRED(lock, is_w) \ - ABSL_INTERNAL_GLOBAL_SCOPED(AnnotateRWLockAcquired) \ - (__FILE__, __LINE__, lock, is_w) - -// Report that the lock at address `lock` is about to be released. -// `is_w`=1 for writer lock, `is_w`=0 for reader lock. -#define ANNOTATE_RWLOCK_RELEASED(lock, is_w) \ - ABSL_INTERNAL_GLOBAL_SCOPED(AnnotateRWLockReleased) \ - (__FILE__, __LINE__, lock, is_w) - -// Apply ANNOTATE_BENIGN_RACE_SIZED to a static variable `static_var`. -#define ANNOTATE_BENIGN_RACE_STATIC(static_var, description) \ - namespace { \ - class static_var##_annotator { \ - public: \ - static_var##_annotator() { \ - ANNOTATE_BENIGN_RACE_SIZED(&static_var, sizeof(static_var), \ - #static_var ": " description); \ - } \ - }; \ - static static_var##_annotator the##static_var##_annotator; \ - } // namespace - -#else // ABSL_INTERNAL_RACE_ANNOTATIONS_ENABLED == 0 - -#define ANNOTATE_RWLOCK_CREATE(lock) // empty -#define ANNOTATE_RWLOCK_CREATE_STATIC(lock) // empty -#define ANNOTATE_RWLOCK_DESTROY(lock) // empty -#define ANNOTATE_RWLOCK_ACQUIRED(lock, is_w) // empty -#define ANNOTATE_RWLOCK_RELEASED(lock, is_w) // empty -#define ANNOTATE_BENIGN_RACE(address, description) // empty -#define ANNOTATE_BENIGN_RACE_SIZED(address, size, description) // empty -#define ANNOTATE_THREAD_NAME(name) // empty -#define ANNOTATE_ENABLE_RACE_DETECTION(enable) // empty -#define ANNOTATE_BENIGN_RACE_STATIC(static_var, description) // empty - -#endif // ABSL_INTERNAL_RACE_ANNOTATIONS_ENABLED - -// ------------------------------------------------------------------------- -// Define memory annotations. - -#if ABSL_INTERNAL_MEMORY_ANNOTATIONS_ENABLED == 1 - -#include - -#define ANNOTATE_MEMORY_IS_INITIALIZED(address, size) \ - __msan_unpoison(address, size) - -#define ANNOTATE_MEMORY_IS_UNINITIALIZED(address, size) \ - __msan_allocated_memory(address, size) - -#else // ABSL_INTERNAL_MEMORY_ANNOTATIONS_ENABLED == 0 - -#if DYNAMIC_ANNOTATIONS_ENABLED == 1 -#define ANNOTATE_MEMORY_IS_INITIALIZED(address, size) \ - do { \ - (void)(address); \ - (void)(size); \ - } while (0) -#define ANNOTATE_MEMORY_IS_UNINITIALIZED(address, size) \ - do { \ - (void)(address); \ - (void)(size); \ - } while (0) -#else -#define ANNOTATE_MEMORY_IS_INITIALIZED(address, size) // empty -#define ANNOTATE_MEMORY_IS_UNINITIALIZED(address, size) // empty -#endif - -#endif // ABSL_INTERNAL_MEMORY_ANNOTATIONS_ENABLED - -// ------------------------------------------------------------------------- -// Define IGNORE_READS_BEGIN/_END attributes. - -#if defined(ABSL_INTERNAL_IGNORE_READS_ATTRIBUTE_ENABLED) - -#define ABSL_INTERNAL_IGNORE_READS_BEGIN_ATTRIBUTE \ - __attribute((exclusive_lock_function("*"))) -#define ABSL_INTERNAL_IGNORE_READS_END_ATTRIBUTE \ - __attribute((unlock_function("*"))) - -#else // !defined(ABSL_INTERNAL_IGNORE_READS_ATTRIBUTE_ENABLED) - -#define ABSL_INTERNAL_IGNORE_READS_BEGIN_ATTRIBUTE // empty -#define ABSL_INTERNAL_IGNORE_READS_END_ATTRIBUTE // empty - -#endif // defined(ABSL_INTERNAL_IGNORE_READS_ATTRIBUTE_ENABLED) - -// ------------------------------------------------------------------------- -// Define IGNORE_READS_BEGIN/_END annotations. - -#if ABSL_INTERNAL_READS_ANNOTATIONS_ENABLED == 1 - -// Request the analysis tool to ignore all reads in the current thread until -// ANNOTATE_IGNORE_READS_END is called. Useful to ignore intentional racey -// reads, while still checking other reads and all writes. -// See also ANNOTATE_UNPROTECTED_READ. -#define ANNOTATE_IGNORE_READS_BEGIN() \ - ABSL_INTERNAL_GLOBAL_SCOPED(AnnotateIgnoreReadsBegin)(__FILE__, __LINE__) - -// Stop ignoring reads. -#define ANNOTATE_IGNORE_READS_END() \ - ABSL_INTERNAL_GLOBAL_SCOPED(AnnotateIgnoreReadsEnd)(__FILE__, __LINE__) - -#elif defined(ABSL_INTERNAL_ANNOTALYSIS_ENABLED) - -// When Annotalysis is enabled without Dynamic Annotations, the use of -// static-inline functions allows the annotations to be read at compile-time, -// while still letting the compiler elide the functions from the final build. -// -// TODO(delesley) -- The exclusive lock here ignores writes as well, but -// allows IGNORE_READS_AND_WRITES to work properly. - -#define ANNOTATE_IGNORE_READS_BEGIN() \ - ABSL_INTERNAL_GLOBAL_SCOPED(AbslInternalAnnotateIgnoreReadsBegin)() - -#define ANNOTATE_IGNORE_READS_END() \ - ABSL_INTERNAL_GLOBAL_SCOPED(AbslInternalAnnotateIgnoreReadsEnd)() - -#else - -#define ANNOTATE_IGNORE_READS_BEGIN() // empty -#define ANNOTATE_IGNORE_READS_END() // empty - -#endif - -// ------------------------------------------------------------------------- -// Define IGNORE_WRITES_BEGIN/_END annotations. - -#if ABSL_INTERNAL_WRITES_ANNOTATIONS_ENABLED == 1 - -// Similar to ANNOTATE_IGNORE_READS_BEGIN, but ignore writes instead. -#define ANNOTATE_IGNORE_WRITES_BEGIN() \ - ABSL_INTERNAL_GLOBAL_SCOPED(AnnotateIgnoreWritesBegin)(__FILE__, __LINE__) - -// Stop ignoring writes. -#define ANNOTATE_IGNORE_WRITES_END() \ - ABSL_INTERNAL_GLOBAL_SCOPED(AnnotateIgnoreWritesEnd)(__FILE__, __LINE__) - -#else - -#define ANNOTATE_IGNORE_WRITES_BEGIN() // empty -#define ANNOTATE_IGNORE_WRITES_END() // empty - -#endif - -// ------------------------------------------------------------------------- -// Define the ANNOTATE_IGNORE_READS_AND_WRITES_* annotations using the more -// primitive annotations defined above. -// -// Instead of doing -// ANNOTATE_IGNORE_READS_BEGIN(); -// ... = x; -// ANNOTATE_IGNORE_READS_END(); -// one can use -// ... = ANNOTATE_UNPROTECTED_READ(x); - -#if defined(ABSL_INTERNAL_READS_WRITES_ANNOTATIONS_ENABLED) - -// Start ignoring all memory accesses (both reads and writes). -#define ANNOTATE_IGNORE_READS_AND_WRITES_BEGIN() \ - do { \ - ANNOTATE_IGNORE_READS_BEGIN(); \ - ANNOTATE_IGNORE_WRITES_BEGIN(); \ - } while (0) - -// Stop ignoring both reads and writes. -#define ANNOTATE_IGNORE_READS_AND_WRITES_END() \ - do { \ - ANNOTATE_IGNORE_WRITES_END(); \ - ANNOTATE_IGNORE_READS_END(); \ - } while (0) - -#ifdef __cplusplus -// ANNOTATE_UNPROTECTED_READ is the preferred way to annotate racey reads. -#define ANNOTATE_UNPROTECTED_READ(x) \ - absl::base_internal::AnnotateUnprotectedRead(x) - -#endif - -#else - -#define ANNOTATE_IGNORE_READS_AND_WRITES_BEGIN() // empty -#define ANNOTATE_IGNORE_READS_AND_WRITES_END() // empty -#define ANNOTATE_UNPROTECTED_READ(x) (x) - -#endif - -// ------------------------------------------------------------------------- -// Address sanitizer annotations - -#ifdef ABSL_HAVE_ADDRESS_SANITIZER -// Describe the current state of a contiguous container such as e.g. -// std::vector or std::string. For more details see -// sanitizer/common_interface_defs.h, which is provided by the compiler. -#include - -#define ANNOTATE_CONTIGUOUS_CONTAINER(beg, end, old_mid, new_mid) \ - __sanitizer_annotate_contiguous_container(beg, end, old_mid, new_mid) -#define ADDRESS_SANITIZER_REDZONE(name) \ - struct { \ - char x[8] __attribute__((aligned(8))); \ - } name - -#else - -#define ANNOTATE_CONTIGUOUS_CONTAINER(beg, end, old_mid, new_mid) -#define ADDRESS_SANITIZER_REDZONE(name) static_assert(true, "") - -#endif // ABSL_HAVE_ADDRESS_SANITIZER - -// ------------------------------------------------------------------------- -// Undefine the macros intended only for this file. - -#undef ABSL_INTERNAL_RACE_ANNOTATIONS_ENABLED -#undef ABSL_INTERNAL_MEMORY_ANNOTATIONS_ENABLED -#undef ABSL_INTERNAL_READS_ANNOTATIONS_ENABLED -#undef ABSL_INTERNAL_WRITES_ANNOTATIONS_ENABLED -#undef ABSL_INTERNAL_ANNOTALYSIS_ENABLED -#undef ABSL_INTERNAL_READS_WRITES_ANNOTATIONS_ENABLED -#undef ABSL_INTERNAL_BEGIN_EXTERN_C -#undef ABSL_INTERNAL_END_EXTERN_C -#undef ABSL_INTERNAL_STATIC_INLINE - -#endif // ABSL_BASE_INTERNAL_DYNAMIC_ANNOTATIONS_H_ diff --git a/src/third_party/abseil-cpp/absl/base/internal/endian.h b/src/third_party/abseil-cpp/absl/base/internal/endian.h deleted file mode 100644 index 50747d75ec..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/endian.h +++ /dev/null @@ -1,282 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// - -#ifndef ABSL_BASE_INTERNAL_ENDIAN_H_ -#define ABSL_BASE_INTERNAL_ENDIAN_H_ - -#include -#include - -#include "absl/base/casts.h" -#include "absl/base/config.h" -#include "absl/base/internal/unaligned_access.h" -#include "absl/base/port.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN - -inline uint64_t gbswap_64(uint64_t host_int) { -#if ABSL_HAVE_BUILTIN(__builtin_bswap64) || defined(__GNUC__) - return __builtin_bswap64(host_int); -#elif defined(_MSC_VER) - return _byteswap_uint64(host_int); -#else - return (((host_int & uint64_t{0xFF}) << 56) | - ((host_int & uint64_t{0xFF00}) << 40) | - ((host_int & uint64_t{0xFF0000}) << 24) | - ((host_int & uint64_t{0xFF000000}) << 8) | - ((host_int & uint64_t{0xFF00000000}) >> 8) | - ((host_int & uint64_t{0xFF0000000000}) >> 24) | - ((host_int & uint64_t{0xFF000000000000}) >> 40) | - ((host_int & uint64_t{0xFF00000000000000}) >> 56)); -#endif -} - -inline uint32_t gbswap_32(uint32_t host_int) { -#if ABSL_HAVE_BUILTIN(__builtin_bswap32) || defined(__GNUC__) - return __builtin_bswap32(host_int); -#elif defined(_MSC_VER) - return _byteswap_ulong(host_int); -#else - return (((host_int & uint32_t{0xFF}) << 24) | - ((host_int & uint32_t{0xFF00}) << 8) | - ((host_int & uint32_t{0xFF0000}) >> 8) | - ((host_int & uint32_t{0xFF000000}) >> 24)); -#endif -} - -inline uint16_t gbswap_16(uint16_t host_int) { -#if ABSL_HAVE_BUILTIN(__builtin_bswap16) || defined(__GNUC__) - return __builtin_bswap16(host_int); -#elif defined(_MSC_VER) - return _byteswap_ushort(host_int); -#else - return (((host_int & uint16_t{0xFF}) << 8) | - ((host_int & uint16_t{0xFF00}) >> 8)); -#endif -} - -#ifdef ABSL_IS_LITTLE_ENDIAN - -// Portable definitions for htonl (host-to-network) and friends on little-endian -// architectures. -inline uint16_t ghtons(uint16_t x) { return gbswap_16(x); } -inline uint32_t ghtonl(uint32_t x) { return gbswap_32(x); } -inline uint64_t ghtonll(uint64_t x) { return gbswap_64(x); } - -#elif defined ABSL_IS_BIG_ENDIAN - -// Portable definitions for htonl (host-to-network) etc on big-endian -// architectures. These definitions are simpler since the host byte order is the -// same as network byte order. -inline uint16_t ghtons(uint16_t x) { return x; } -inline uint32_t ghtonl(uint32_t x) { return x; } -inline uint64_t ghtonll(uint64_t x) { return x; } - -#else -#error \ - "Unsupported byte order: Either ABSL_IS_BIG_ENDIAN or " \ - "ABSL_IS_LITTLE_ENDIAN must be defined" -#endif // byte order - -inline uint16_t gntohs(uint16_t x) { return ghtons(x); } -inline uint32_t gntohl(uint32_t x) { return ghtonl(x); } -inline uint64_t gntohll(uint64_t x) { return ghtonll(x); } - -// Utilities to convert numbers between the current hosts's native byte -// order and little-endian byte order -// -// Load/Store methods are alignment safe -namespace little_endian { -// Conversion functions. -#ifdef ABSL_IS_LITTLE_ENDIAN - -inline uint16_t FromHost16(uint16_t x) { return x; } -inline uint16_t ToHost16(uint16_t x) { return x; } - -inline uint32_t FromHost32(uint32_t x) { return x; } -inline uint32_t ToHost32(uint32_t x) { return x; } - -inline uint64_t FromHost64(uint64_t x) { return x; } -inline uint64_t ToHost64(uint64_t x) { return x; } - -inline constexpr bool IsLittleEndian() { return true; } - -#elif defined ABSL_IS_BIG_ENDIAN - -inline uint16_t FromHost16(uint16_t x) { return gbswap_16(x); } -inline uint16_t ToHost16(uint16_t x) { return gbswap_16(x); } - -inline uint32_t FromHost32(uint32_t x) { return gbswap_32(x); } -inline uint32_t ToHost32(uint32_t x) { return gbswap_32(x); } - -inline uint64_t FromHost64(uint64_t x) { return gbswap_64(x); } -inline uint64_t ToHost64(uint64_t x) { return gbswap_64(x); } - -inline constexpr bool IsLittleEndian() { return false; } - -#endif /* ENDIAN */ - -inline uint8_t FromHost(uint8_t x) { return x; } -inline uint16_t FromHost(uint16_t x) { return FromHost16(x); } -inline uint32_t FromHost(uint32_t x) { return FromHost32(x); } -inline uint64_t FromHost(uint64_t x) { return FromHost64(x); } -inline uint8_t ToHost(uint8_t x) { return x; } -inline uint16_t ToHost(uint16_t x) { return ToHost16(x); } -inline uint32_t ToHost(uint32_t x) { return ToHost32(x); } -inline uint64_t ToHost(uint64_t x) { return ToHost64(x); } - -inline int8_t FromHost(int8_t x) { return x; } -inline int16_t FromHost(int16_t x) { - return bit_cast(FromHost16(bit_cast(x))); -} -inline int32_t FromHost(int32_t x) { - return bit_cast(FromHost32(bit_cast(x))); -} -inline int64_t FromHost(int64_t x) { - return bit_cast(FromHost64(bit_cast(x))); -} -inline int8_t ToHost(int8_t x) { return x; } -inline int16_t ToHost(int16_t x) { - return bit_cast(ToHost16(bit_cast(x))); -} -inline int32_t ToHost(int32_t x) { - return bit_cast(ToHost32(bit_cast(x))); -} -inline int64_t ToHost(int64_t x) { - return bit_cast(ToHost64(bit_cast(x))); -} - -// Functions to do unaligned loads and stores in little-endian order. -inline uint16_t Load16(const void *p) { - return ToHost16(ABSL_INTERNAL_UNALIGNED_LOAD16(p)); -} - -inline void Store16(void *p, uint16_t v) { - ABSL_INTERNAL_UNALIGNED_STORE16(p, FromHost16(v)); -} - -inline uint32_t Load32(const void *p) { - return ToHost32(ABSL_INTERNAL_UNALIGNED_LOAD32(p)); -} - -inline void Store32(void *p, uint32_t v) { - ABSL_INTERNAL_UNALIGNED_STORE32(p, FromHost32(v)); -} - -inline uint64_t Load64(const void *p) { - return ToHost64(ABSL_INTERNAL_UNALIGNED_LOAD64(p)); -} - -inline void Store64(void *p, uint64_t v) { - ABSL_INTERNAL_UNALIGNED_STORE64(p, FromHost64(v)); -} - -} // namespace little_endian - -// Utilities to convert numbers between the current hosts's native byte -// order and big-endian byte order (same as network byte order) -// -// Load/Store methods are alignment safe -namespace big_endian { -#ifdef ABSL_IS_LITTLE_ENDIAN - -inline uint16_t FromHost16(uint16_t x) { return gbswap_16(x); } -inline uint16_t ToHost16(uint16_t x) { return gbswap_16(x); } - -inline uint32_t FromHost32(uint32_t x) { return gbswap_32(x); } -inline uint32_t ToHost32(uint32_t x) { return gbswap_32(x); } - -inline uint64_t FromHost64(uint64_t x) { return gbswap_64(x); } -inline uint64_t ToHost64(uint64_t x) { return gbswap_64(x); } - -inline constexpr bool IsLittleEndian() { return true; } - -#elif defined ABSL_IS_BIG_ENDIAN - -inline uint16_t FromHost16(uint16_t x) { return x; } -inline uint16_t ToHost16(uint16_t x) { return x; } - -inline uint32_t FromHost32(uint32_t x) { return x; } -inline uint32_t ToHost32(uint32_t x) { return x; } - -inline uint64_t FromHost64(uint64_t x) { return x; } -inline uint64_t ToHost64(uint64_t x) { return x; } - -inline constexpr bool IsLittleEndian() { return false; } - -#endif /* ENDIAN */ - -inline uint8_t FromHost(uint8_t x) { return x; } -inline uint16_t FromHost(uint16_t x) { return FromHost16(x); } -inline uint32_t FromHost(uint32_t x) { return FromHost32(x); } -inline uint64_t FromHost(uint64_t x) { return FromHost64(x); } -inline uint8_t ToHost(uint8_t x) { return x; } -inline uint16_t ToHost(uint16_t x) { return ToHost16(x); } -inline uint32_t ToHost(uint32_t x) { return ToHost32(x); } -inline uint64_t ToHost(uint64_t x) { return ToHost64(x); } - -inline int8_t FromHost(int8_t x) { return x; } -inline int16_t FromHost(int16_t x) { - return bit_cast(FromHost16(bit_cast(x))); -} -inline int32_t FromHost(int32_t x) { - return bit_cast(FromHost32(bit_cast(x))); -} -inline int64_t FromHost(int64_t x) { - return bit_cast(FromHost64(bit_cast(x))); -} -inline int8_t ToHost(int8_t x) { return x; } -inline int16_t ToHost(int16_t x) { - return bit_cast(ToHost16(bit_cast(x))); -} -inline int32_t ToHost(int32_t x) { - return bit_cast(ToHost32(bit_cast(x))); -} -inline int64_t ToHost(int64_t x) { - return bit_cast(ToHost64(bit_cast(x))); -} - -// Functions to do unaligned loads and stores in big-endian order. -inline uint16_t Load16(const void *p) { - return ToHost16(ABSL_INTERNAL_UNALIGNED_LOAD16(p)); -} - -inline void Store16(void *p, uint16_t v) { - ABSL_INTERNAL_UNALIGNED_STORE16(p, FromHost16(v)); -} - -inline uint32_t Load32(const void *p) { - return ToHost32(ABSL_INTERNAL_UNALIGNED_LOAD32(p)); -} - -inline void Store32(void *p, uint32_t v) { - ABSL_INTERNAL_UNALIGNED_STORE32(p, FromHost32(v)); -} - -inline uint64_t Load64(const void *p) { - return ToHost64(ABSL_INTERNAL_UNALIGNED_LOAD64(p)); -} - -inline void Store64(void *p, uint64_t v) { - ABSL_INTERNAL_UNALIGNED_STORE64(p, FromHost64(v)); -} - -} // namespace big_endian - -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_BASE_INTERNAL_ENDIAN_H_ diff --git a/src/third_party/abseil-cpp/absl/base/internal/endian_test.cc b/src/third_party/abseil-cpp/absl/base/internal/endian_test.cc deleted file mode 100644 index a1691b1f82..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/endian_test.cc +++ /dev/null @@ -1,263 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/base/internal/endian.h" - -#include -#include -#include -#include -#include - -#include "gtest/gtest.h" -#include "absl/base/config.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace { - -const uint64_t kInitialNumber{0x0123456789abcdef}; -const uint64_t k64Value{kInitialNumber}; -const uint32_t k32Value{0x01234567}; -const uint16_t k16Value{0x0123}; -const int kNumValuesToTest = 1000000; -const int kRandomSeed = 12345; - -#if defined(ABSL_IS_BIG_ENDIAN) -const uint64_t kInitialInNetworkOrder{kInitialNumber}; -const uint64_t k64ValueLE{0xefcdab8967452301}; -const uint32_t k32ValueLE{0x67452301}; -const uint16_t k16ValueLE{0x2301}; - -const uint64_t k64ValueBE{kInitialNumber}; -const uint32_t k32ValueBE{k32Value}; -const uint16_t k16ValueBE{k16Value}; -#elif defined(ABSL_IS_LITTLE_ENDIAN) -const uint64_t kInitialInNetworkOrder{0xefcdab8967452301}; -const uint64_t k64ValueLE{kInitialNumber}; -const uint32_t k32ValueLE{k32Value}; -const uint16_t k16ValueLE{k16Value}; - -const uint64_t k64ValueBE{0xefcdab8967452301}; -const uint32_t k32ValueBE{0x67452301}; -const uint16_t k16ValueBE{0x2301}; -#endif - -std::vector GenerateAllUint16Values() { - std::vector result; - result.reserve(size_t{1} << (sizeof(uint16_t) * 8)); - for (uint32_t i = std::numeric_limits::min(); - i <= std::numeric_limits::max(); ++i) { - result.push_back(static_cast(i)); - } - return result; -} - -template -std::vector GenerateRandomIntegers(size_t num_values_to_test) { - std::vector result; - result.reserve(num_values_to_test); - std::mt19937_64 rng(kRandomSeed); - for (size_t i = 0; i < num_values_to_test; ++i) { - result.push_back(rng()); - } - return result; -} - -void ManualByteSwap(char* bytes, int length) { - if (length == 1) - return; - - EXPECT_EQ(0, length % 2); - for (int i = 0; i < length / 2; ++i) { - int j = (length - 1) - i; - using std::swap; - swap(bytes[i], bytes[j]); - } -} - -template -inline T UnalignedLoad(const char* p) { - static_assert( - sizeof(T) == 1 || sizeof(T) == 2 || sizeof(T) == 4 || sizeof(T) == 8, - "Unexpected type size"); - - switch (sizeof(T)) { - case 1: return *reinterpret_cast(p); - case 2: - return ABSL_INTERNAL_UNALIGNED_LOAD16(p); - case 4: - return ABSL_INTERNAL_UNALIGNED_LOAD32(p); - case 8: - return ABSL_INTERNAL_UNALIGNED_LOAD64(p); - default: - // Suppresses invalid "not all control paths return a value" on MSVC - return {}; - } -} - -template -static void GBSwapHelper(const std::vector& host_values_to_test, - const ByteSwapper& byte_swapper) { - // Test byte_swapper against a manual byte swap. - for (typename std::vector::const_iterator it = host_values_to_test.begin(); - it != host_values_to_test.end(); ++it) { - T host_value = *it; - - char actual_value[sizeof(host_value)]; - memcpy(actual_value, &host_value, sizeof(host_value)); - byte_swapper(actual_value); - - char expected_value[sizeof(host_value)]; - memcpy(expected_value, &host_value, sizeof(host_value)); - ManualByteSwap(expected_value, sizeof(host_value)); - - ASSERT_EQ(0, memcmp(actual_value, expected_value, sizeof(host_value))) - << "Swap output for 0x" << std::hex << host_value << " does not match. " - << "Expected: 0x" << UnalignedLoad(expected_value) << "; " - << "actual: 0x" << UnalignedLoad(actual_value); - } -} - -void Swap16(char* bytes) { - ABSL_INTERNAL_UNALIGNED_STORE16( - bytes, gbswap_16(ABSL_INTERNAL_UNALIGNED_LOAD16(bytes))); -} - -void Swap32(char* bytes) { - ABSL_INTERNAL_UNALIGNED_STORE32( - bytes, gbswap_32(ABSL_INTERNAL_UNALIGNED_LOAD32(bytes))); -} - -void Swap64(char* bytes) { - ABSL_INTERNAL_UNALIGNED_STORE64( - bytes, gbswap_64(ABSL_INTERNAL_UNALIGNED_LOAD64(bytes))); -} - -TEST(EndianessTest, Uint16) { - GBSwapHelper(GenerateAllUint16Values(), &Swap16); -} - -TEST(EndianessTest, Uint32) { - GBSwapHelper(GenerateRandomIntegers(kNumValuesToTest), &Swap32); -} - -TEST(EndianessTest, Uint64) { - GBSwapHelper(GenerateRandomIntegers(kNumValuesToTest), &Swap64); -} - -TEST(EndianessTest, ghtonll_gntohll) { - // Test that absl::ghtonl compiles correctly - uint32_t test = 0x01234567; - EXPECT_EQ(absl::gntohl(absl::ghtonl(test)), test); - - uint64_t comp = absl::ghtonll(kInitialNumber); - EXPECT_EQ(comp, kInitialInNetworkOrder); - comp = absl::gntohll(kInitialInNetworkOrder); - EXPECT_EQ(comp, kInitialNumber); - - // Test that htonll and ntohll are each others' inverse functions on a - // somewhat assorted batch of numbers. 37 is chosen to not be anything - // particularly nice base 2. - uint64_t value = 1; - for (int i = 0; i < 100; ++i) { - comp = absl::ghtonll(absl::gntohll(value)); - EXPECT_EQ(value, comp); - comp = absl::gntohll(absl::ghtonll(value)); - EXPECT_EQ(value, comp); - value *= 37; - } -} - -TEST(EndianessTest, little_endian) { - // Check little_endian uint16_t. - uint64_t comp = little_endian::FromHost16(k16Value); - EXPECT_EQ(comp, k16ValueLE); - comp = little_endian::ToHost16(k16ValueLE); - EXPECT_EQ(comp, k16Value); - - // Check little_endian uint32_t. - comp = little_endian::FromHost32(k32Value); - EXPECT_EQ(comp, k32ValueLE); - comp = little_endian::ToHost32(k32ValueLE); - EXPECT_EQ(comp, k32Value); - - // Check little_endian uint64_t. - comp = little_endian::FromHost64(k64Value); - EXPECT_EQ(comp, k64ValueLE); - comp = little_endian::ToHost64(k64ValueLE); - EXPECT_EQ(comp, k64Value); - - // Check little-endian Load and store functions. - uint16_t u16Buf; - uint32_t u32Buf; - uint64_t u64Buf; - - little_endian::Store16(&u16Buf, k16Value); - EXPECT_EQ(u16Buf, k16ValueLE); - comp = little_endian::Load16(&u16Buf); - EXPECT_EQ(comp, k16Value); - - little_endian::Store32(&u32Buf, k32Value); - EXPECT_EQ(u32Buf, k32ValueLE); - comp = little_endian::Load32(&u32Buf); - EXPECT_EQ(comp, k32Value); - - little_endian::Store64(&u64Buf, k64Value); - EXPECT_EQ(u64Buf, k64ValueLE); - comp = little_endian::Load64(&u64Buf); - EXPECT_EQ(comp, k64Value); -} - -TEST(EndianessTest, big_endian) { - // Check big-endian Load and store functions. - uint16_t u16Buf; - uint32_t u32Buf; - uint64_t u64Buf; - - unsigned char buffer[10]; - big_endian::Store16(&u16Buf, k16Value); - EXPECT_EQ(u16Buf, k16ValueBE); - uint64_t comp = big_endian::Load16(&u16Buf); - EXPECT_EQ(comp, k16Value); - - big_endian::Store32(&u32Buf, k32Value); - EXPECT_EQ(u32Buf, k32ValueBE); - comp = big_endian::Load32(&u32Buf); - EXPECT_EQ(comp, k32Value); - - big_endian::Store64(&u64Buf, k64Value); - EXPECT_EQ(u64Buf, k64ValueBE); - comp = big_endian::Load64(&u64Buf); - EXPECT_EQ(comp, k64Value); - - big_endian::Store16(buffer + 1, k16Value); - EXPECT_EQ(u16Buf, k16ValueBE); - comp = big_endian::Load16(buffer + 1); - EXPECT_EQ(comp, k16Value); - - big_endian::Store32(buffer + 1, k32Value); - EXPECT_EQ(u32Buf, k32ValueBE); - comp = big_endian::Load32(buffer + 1); - EXPECT_EQ(comp, k32Value); - - big_endian::Store64(buffer + 1, k64Value); - EXPECT_EQ(u64Buf, k64ValueBE); - comp = big_endian::Load64(buffer + 1); - EXPECT_EQ(comp, k64Value); -} - -} // namespace -ABSL_NAMESPACE_END -} // namespace absl diff --git a/src/third_party/abseil-cpp/absl/base/internal/errno_saver.h b/src/third_party/abseil-cpp/absl/base/internal/errno_saver.h deleted file mode 100644 index 251de510fc..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/errno_saver.h +++ /dev/null @@ -1,43 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#ifndef ABSL_BASE_INTERNAL_ERRNO_SAVER_H_ -#define ABSL_BASE_INTERNAL_ERRNO_SAVER_H_ - -#include - -#include "absl/base/config.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace base_internal { - -// `ErrnoSaver` captures the value of `errno` upon construction and restores it -// upon deletion. It is used in low-level code and must be super fast. Do not -// add instrumentation, even in debug modes. -class ErrnoSaver { - public: - ErrnoSaver() : saved_errno_(errno) {} - ~ErrnoSaver() { errno = saved_errno_; } - int operator()() const { return saved_errno_; } - - private: - const int saved_errno_; -}; - -} // namespace base_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_BASE_INTERNAL_ERRNO_SAVER_H_ diff --git a/src/third_party/abseil-cpp/absl/base/internal/errno_saver_test.cc b/src/third_party/abseil-cpp/absl/base/internal/errno_saver_test.cc deleted file mode 100644 index e9b742c588..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/errno_saver_test.cc +++ /dev/null @@ -1,45 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/base/internal/errno_saver.h" - -#include - -#include "gmock/gmock.h" -#include "gtest/gtest.h" -#include "absl/base/internal/strerror.h" - -namespace { -using ::testing::Eq; - -struct ErrnoPrinter { - int no; -}; -std::ostream &operator<<(std::ostream &os, ErrnoPrinter ep) { - return os << absl::base_internal::StrError(ep.no) << " [" << ep.no << "]"; -} -bool operator==(ErrnoPrinter one, ErrnoPrinter two) { return one.no == two.no; } - -TEST(ErrnoSaverTest, Works) { - errno = EDOM; - { - absl::base_internal::ErrnoSaver errno_saver; - EXPECT_THAT(ErrnoPrinter{errno}, Eq(ErrnoPrinter{EDOM})); - errno = ERANGE; - EXPECT_THAT(ErrnoPrinter{errno}, Eq(ErrnoPrinter{ERANGE})); - EXPECT_THAT(ErrnoPrinter{errno_saver()}, Eq(ErrnoPrinter{EDOM})); - } - EXPECT_THAT(ErrnoPrinter{errno}, Eq(ErrnoPrinter{EDOM})); -} -} // namespace diff --git a/src/third_party/abseil-cpp/absl/base/internal/exception_safety_testing.cc b/src/third_party/abseil-cpp/absl/base/internal/exception_safety_testing.cc deleted file mode 100644 index 6ccac41864..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/exception_safety_testing.cc +++ /dev/null @@ -1,79 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/base/internal/exception_safety_testing.h" - -#ifdef ABSL_HAVE_EXCEPTIONS - -#include "gtest/gtest.h" -#include "absl/meta/type_traits.h" - -namespace testing { - -exceptions_internal::NoThrowTag nothrow_ctor; - -exceptions_internal::StrongGuaranteeTagType strong_guarantee; - -exceptions_internal::ExceptionSafetyTestBuilder<> MakeExceptionSafetyTester() { - return {}; -} - -namespace exceptions_internal { - -int countdown = -1; - -ConstructorTracker* ConstructorTracker::current_tracker_instance_ = nullptr; - -void MaybeThrow(absl::string_view msg, bool throw_bad_alloc) { - if (countdown-- == 0) { - if (throw_bad_alloc) throw TestBadAllocException(msg); - throw TestException(msg); - } -} - -testing::AssertionResult FailureMessage(const TestException& e, - int countdown) noexcept { - return testing::AssertionFailure() << "Exception thrown from " << e.what(); -} - -std::string GetSpecString(TypeSpec spec) { - std::string out; - absl::string_view sep; - const auto append = [&](absl::string_view s) { - absl::StrAppend(&out, sep, s); - sep = " | "; - }; - if (static_cast(TypeSpec::kNoThrowCopy & spec)) { - append("kNoThrowCopy"); - } - if (static_cast(TypeSpec::kNoThrowMove & spec)) { - append("kNoThrowMove"); - } - if (static_cast(TypeSpec::kNoThrowNew & spec)) { - append("kNoThrowNew"); - } - return out; -} - -std::string GetSpecString(AllocSpec spec) { - return static_cast(AllocSpec::kNoThrowAllocate & spec) - ? "kNoThrowAllocate" - : ""; -} - -} // namespace exceptions_internal - -} // namespace testing - -#endif // ABSL_HAVE_EXCEPTIONS diff --git a/src/third_party/abseil-cpp/absl/base/internal/exception_safety_testing.h b/src/third_party/abseil-cpp/absl/base/internal/exception_safety_testing.h deleted file mode 100644 index 77a5aec642..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/exception_safety_testing.h +++ /dev/null @@ -1,1109 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Utilities for testing exception-safety - -#ifndef ABSL_BASE_INTERNAL_EXCEPTION_SAFETY_TESTING_H_ -#define ABSL_BASE_INTERNAL_EXCEPTION_SAFETY_TESTING_H_ - -#include "absl/base/config.h" - -#ifdef ABSL_HAVE_EXCEPTIONS - -#include -#include -#include -#include -#include -#include -#include -#include - -#include "gtest/gtest.h" -#include "absl/base/internal/pretty_function.h" -#include "absl/memory/memory.h" -#include "absl/meta/type_traits.h" -#include "absl/strings/string_view.h" -#include "absl/strings/substitute.h" -#include "absl/utility/utility.h" - -namespace testing { - -enum class TypeSpec; -enum class AllocSpec; - -constexpr TypeSpec operator|(TypeSpec a, TypeSpec b) { - using T = absl::underlying_type_t; - return static_cast(static_cast(a) | static_cast(b)); -} - -constexpr TypeSpec operator&(TypeSpec a, TypeSpec b) { - using T = absl::underlying_type_t; - return static_cast(static_cast(a) & static_cast(b)); -} - -constexpr AllocSpec operator|(AllocSpec a, AllocSpec b) { - using T = absl::underlying_type_t; - return static_cast(static_cast(a) | static_cast(b)); -} - -constexpr AllocSpec operator&(AllocSpec a, AllocSpec b) { - using T = absl::underlying_type_t; - return static_cast(static_cast(a) & static_cast(b)); -} - -namespace exceptions_internal { - -std::string GetSpecString(TypeSpec); -std::string GetSpecString(AllocSpec); - -struct NoThrowTag {}; -struct StrongGuaranteeTagType {}; - -// A simple exception class. We throw this so that test code can catch -// exceptions specifically thrown by ThrowingValue. -class TestException { - public: - explicit TestException(absl::string_view msg) : msg_(msg) {} - virtual ~TestException() {} - virtual const char* what() const noexcept { return msg_.c_str(); } - - private: - std::string msg_; -}; - -// TestBadAllocException exists because allocation functions must throw an -// exception which can be caught by a handler of std::bad_alloc. We use a child -// class of std::bad_alloc so we can customise the error message, and also -// derive from TestException so we don't accidentally end up catching an actual -// bad_alloc exception in TestExceptionSafety. -class TestBadAllocException : public std::bad_alloc, public TestException { - public: - explicit TestBadAllocException(absl::string_view msg) : TestException(msg) {} - using TestException::what; -}; - -extern int countdown; - -// Allows the countdown variable to be set manually (defaulting to the initial -// value of 0) -inline void SetCountdown(int i = 0) { countdown = i; } -// Sets the countdown to the terminal value -1 -inline void UnsetCountdown() { SetCountdown(-1); } - -void MaybeThrow(absl::string_view msg, bool throw_bad_alloc = false); - -testing::AssertionResult FailureMessage(const TestException& e, - int countdown) noexcept; - -struct TrackedAddress { - bool is_alive; - std::string description; -}; - -// Inspects the constructions and destructions of anything inheriting from -// TrackedObject. This allows us to safely "leak" TrackedObjects, as -// ConstructorTracker will destroy everything left over in its destructor. -class ConstructorTracker { - public: - explicit ConstructorTracker(int count) : countdown_(count) { - assert(current_tracker_instance_ == nullptr); - current_tracker_instance_ = this; - } - - ~ConstructorTracker() { - assert(current_tracker_instance_ == this); - current_tracker_instance_ = nullptr; - - for (auto& it : address_map_) { - void* address = it.first; - TrackedAddress& tracked_address = it.second; - if (tracked_address.is_alive) { - ADD_FAILURE() << ErrorMessage(address, tracked_address.description, - countdown_, "Object was not destroyed."); - } - } - } - - static void ObjectConstructed(void* address, std::string description) { - if (!CurrentlyTracking()) return; - - TrackedAddress& tracked_address = - current_tracker_instance_->address_map_[address]; - if (tracked_address.is_alive) { - ADD_FAILURE() << ErrorMessage( - address, tracked_address.description, - current_tracker_instance_->countdown_, - "Object was re-constructed. Current object was constructed by " + - description); - } - tracked_address = {true, std::move(description)}; - } - - static void ObjectDestructed(void* address) { - if (!CurrentlyTracking()) return; - - auto it = current_tracker_instance_->address_map_.find(address); - // Not tracked. Ignore. - if (it == current_tracker_instance_->address_map_.end()) return; - - TrackedAddress& tracked_address = it->second; - if (!tracked_address.is_alive) { - ADD_FAILURE() << ErrorMessage(address, tracked_address.description, - current_tracker_instance_->countdown_, - "Object was re-destroyed."); - } - tracked_address.is_alive = false; - } - - private: - static bool CurrentlyTracking() { - return current_tracker_instance_ != nullptr; - } - - static std::string ErrorMessage(void* address, - const std::string& address_description, - int countdown, - const std::string& error_description) { - return absl::Substitute( - "With coundtown at $0:\n" - " $1\n" - " Object originally constructed by $2\n" - " Object address: $3\n", - countdown, error_description, address_description, address); - } - - std::unordered_map address_map_; - int countdown_; - - static ConstructorTracker* current_tracker_instance_; -}; - -class TrackedObject { - public: - TrackedObject(const TrackedObject&) = delete; - TrackedObject(TrackedObject&&) = delete; - - protected: - explicit TrackedObject(std::string description) { - ConstructorTracker::ObjectConstructed(this, std::move(description)); - } - - ~TrackedObject() noexcept { ConstructorTracker::ObjectDestructed(this); } -}; -} // namespace exceptions_internal - -extern exceptions_internal::NoThrowTag nothrow_ctor; - -extern exceptions_internal::StrongGuaranteeTagType strong_guarantee; - -// A test class which is convertible to bool. The conversion can be -// instrumented to throw at a controlled time. -class ThrowingBool { - public: - ThrowingBool(bool b) noexcept : b_(b) {} // NOLINT(runtime/explicit) - operator bool() const { // NOLINT - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION); - return b_; - } - - private: - bool b_; -}; - -/* - * Configuration enum for the ThrowingValue type that defines behavior for the - * lifetime of the instance. Use testing::nothrow_ctor to prevent the integer - * constructor from throwing. - * - * kEverythingThrows: Every operation can throw an exception - * kNoThrowCopy: Copy construction and copy assignment will not throw - * kNoThrowMove: Move construction and move assignment will not throw - * kNoThrowNew: Overloaded operators new and new[] will not throw - */ -enum class TypeSpec { - kEverythingThrows = 0, - kNoThrowCopy = 1, - kNoThrowMove = 1 << 1, - kNoThrowNew = 1 << 2, -}; - -/* - * A testing class instrumented to throw an exception at a controlled time. - * - * ThrowingValue implements a slightly relaxed version of the Regular concept -- - * that is it's a value type with the expected semantics. It also implements - * arithmetic operations. It doesn't implement member and pointer operators - * like operator-> or operator[]. - * - * ThrowingValue can be instrumented to have certain operations be noexcept by - * using compile-time bitfield template arguments. That is, to make an - * ThrowingValue which has noexcept move construction/assignment and noexcept - * copy construction/assignment, use the following: - * ThrowingValue my_thrwr{val}; - */ -template -class ThrowingValue : private exceptions_internal::TrackedObject { - static constexpr bool IsSpecified(TypeSpec spec) { - return static_cast(Spec & spec); - } - - static constexpr int kDefaultValue = 0; - static constexpr int kBadValue = 938550620; - - public: - ThrowingValue() : TrackedObject(GetInstanceString(kDefaultValue)) { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION); - dummy_ = kDefaultValue; - } - - ThrowingValue(const ThrowingValue& other) noexcept( - IsSpecified(TypeSpec::kNoThrowCopy)) - : TrackedObject(GetInstanceString(other.dummy_)) { - if (!IsSpecified(TypeSpec::kNoThrowCopy)) { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION); - } - dummy_ = other.dummy_; - } - - ThrowingValue(ThrowingValue&& other) noexcept( - IsSpecified(TypeSpec::kNoThrowMove)) - : TrackedObject(GetInstanceString(other.dummy_)) { - if (!IsSpecified(TypeSpec::kNoThrowMove)) { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION); - } - dummy_ = other.dummy_; - } - - explicit ThrowingValue(int i) : TrackedObject(GetInstanceString(i)) { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION); - dummy_ = i; - } - - ThrowingValue(int i, exceptions_internal::NoThrowTag) noexcept - : TrackedObject(GetInstanceString(i)), dummy_(i) {} - - // absl expects nothrow destructors - ~ThrowingValue() noexcept = default; - - ThrowingValue& operator=(const ThrowingValue& other) noexcept( - IsSpecified(TypeSpec::kNoThrowCopy)) { - dummy_ = kBadValue; - if (!IsSpecified(TypeSpec::kNoThrowCopy)) { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION); - } - dummy_ = other.dummy_; - return *this; - } - - ThrowingValue& operator=(ThrowingValue&& other) noexcept( - IsSpecified(TypeSpec::kNoThrowMove)) { - dummy_ = kBadValue; - if (!IsSpecified(TypeSpec::kNoThrowMove)) { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION); - } - dummy_ = other.dummy_; - return *this; - } - - // Arithmetic Operators - ThrowingValue operator+(const ThrowingValue& other) const { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION); - return ThrowingValue(dummy_ + other.dummy_, nothrow_ctor); - } - - ThrowingValue operator+() const { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION); - return ThrowingValue(dummy_, nothrow_ctor); - } - - ThrowingValue operator-(const ThrowingValue& other) const { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION); - return ThrowingValue(dummy_ - other.dummy_, nothrow_ctor); - } - - ThrowingValue operator-() const { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION); - return ThrowingValue(-dummy_, nothrow_ctor); - } - - ThrowingValue& operator++() { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION); - ++dummy_; - return *this; - } - - ThrowingValue operator++(int) { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION); - auto out = ThrowingValue(dummy_, nothrow_ctor); - ++dummy_; - return out; - } - - ThrowingValue& operator--() { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION); - --dummy_; - return *this; - } - - ThrowingValue operator--(int) { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION); - auto out = ThrowingValue(dummy_, nothrow_ctor); - --dummy_; - return out; - } - - ThrowingValue operator*(const ThrowingValue& other) const { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION); - return ThrowingValue(dummy_ * other.dummy_, nothrow_ctor); - } - - ThrowingValue operator/(const ThrowingValue& other) const { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION); - return ThrowingValue(dummy_ / other.dummy_, nothrow_ctor); - } - - ThrowingValue operator%(const ThrowingValue& other) const { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION); - return ThrowingValue(dummy_ % other.dummy_, nothrow_ctor); - } - - ThrowingValue operator<<(int shift) const { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION); - return ThrowingValue(dummy_ << shift, nothrow_ctor); - } - - ThrowingValue operator>>(int shift) const { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION); - return ThrowingValue(dummy_ >> shift, nothrow_ctor); - } - - // Comparison Operators - // NOTE: We use `ThrowingBool` instead of `bool` because most STL - // types/containers requires T to be convertible to bool. - friend ThrowingBool operator==(const ThrowingValue& a, - const ThrowingValue& b) { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION); - return a.dummy_ == b.dummy_; - } - friend ThrowingBool operator!=(const ThrowingValue& a, - const ThrowingValue& b) { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION); - return a.dummy_ != b.dummy_; - } - friend ThrowingBool operator<(const ThrowingValue& a, - const ThrowingValue& b) { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION); - return a.dummy_ < b.dummy_; - } - friend ThrowingBool operator<=(const ThrowingValue& a, - const ThrowingValue& b) { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION); - return a.dummy_ <= b.dummy_; - } - friend ThrowingBool operator>(const ThrowingValue& a, - const ThrowingValue& b) { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION); - return a.dummy_ > b.dummy_; - } - friend ThrowingBool operator>=(const ThrowingValue& a, - const ThrowingValue& b) { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION); - return a.dummy_ >= b.dummy_; - } - - // Logical Operators - ThrowingBool operator!() const { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION); - return !dummy_; - } - - ThrowingBool operator&&(const ThrowingValue& other) const { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION); - return dummy_ && other.dummy_; - } - - ThrowingBool operator||(const ThrowingValue& other) const { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION); - return dummy_ || other.dummy_; - } - - // Bitwise Logical Operators - ThrowingValue operator~() const { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION); - return ThrowingValue(~dummy_, nothrow_ctor); - } - - ThrowingValue operator&(const ThrowingValue& other) const { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION); - return ThrowingValue(dummy_ & other.dummy_, nothrow_ctor); - } - - ThrowingValue operator|(const ThrowingValue& other) const { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION); - return ThrowingValue(dummy_ | other.dummy_, nothrow_ctor); - } - - ThrowingValue operator^(const ThrowingValue& other) const { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION); - return ThrowingValue(dummy_ ^ other.dummy_, nothrow_ctor); - } - - // Compound Assignment operators - ThrowingValue& operator+=(const ThrowingValue& other) { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION); - dummy_ += other.dummy_; - return *this; - } - - ThrowingValue& operator-=(const ThrowingValue& other) { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION); - dummy_ -= other.dummy_; - return *this; - } - - ThrowingValue& operator*=(const ThrowingValue& other) { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION); - dummy_ *= other.dummy_; - return *this; - } - - ThrowingValue& operator/=(const ThrowingValue& other) { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION); - dummy_ /= other.dummy_; - return *this; - } - - ThrowingValue& operator%=(const ThrowingValue& other) { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION); - dummy_ %= other.dummy_; - return *this; - } - - ThrowingValue& operator&=(const ThrowingValue& other) { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION); - dummy_ &= other.dummy_; - return *this; - } - - ThrowingValue& operator|=(const ThrowingValue& other) { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION); - dummy_ |= other.dummy_; - return *this; - } - - ThrowingValue& operator^=(const ThrowingValue& other) { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION); - dummy_ ^= other.dummy_; - return *this; - } - - ThrowingValue& operator<<=(int shift) { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION); - dummy_ <<= shift; - return *this; - } - - ThrowingValue& operator>>=(int shift) { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION); - dummy_ >>= shift; - return *this; - } - - // Pointer operators - void operator&() const = delete; // NOLINT(runtime/operator) - - // Stream operators - friend std::ostream& operator<<(std::ostream& os, const ThrowingValue& tv) { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION); - return os << GetInstanceString(tv.dummy_); - } - - friend std::istream& operator>>(std::istream& is, const ThrowingValue&) { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION); - return is; - } - - // Memory management operators - static void* operator new(size_t s) noexcept( - IsSpecified(TypeSpec::kNoThrowNew)) { - if (!IsSpecified(TypeSpec::kNoThrowNew)) { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION, true); - } - return ::operator new(s); - } - - static void* operator new[](size_t s) noexcept( - IsSpecified(TypeSpec::kNoThrowNew)) { - if (!IsSpecified(TypeSpec::kNoThrowNew)) { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION, true); - } - return ::operator new[](s); - } - - template - static void* operator new(size_t s, Args&&... args) noexcept( - IsSpecified(TypeSpec::kNoThrowNew)) { - if (!IsSpecified(TypeSpec::kNoThrowNew)) { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION, true); - } - return ::operator new(s, std::forward(args)...); - } - - template - static void* operator new[](size_t s, Args&&... args) noexcept( - IsSpecified(TypeSpec::kNoThrowNew)) { - if (!IsSpecified(TypeSpec::kNoThrowNew)) { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION, true); - } - return ::operator new[](s, std::forward(args)...); - } - - // Abseil doesn't support throwing overloaded operator delete. These are - // provided so a throwing operator-new can clean up after itself. - void operator delete(void* p) noexcept { ::operator delete(p); } - - template - void operator delete(void* p, Args&&... args) noexcept { - ::operator delete(p, std::forward(args)...); - } - - void operator delete[](void* p) noexcept { return ::operator delete[](p); } - - template - void operator delete[](void* p, Args&&... args) noexcept { - return ::operator delete[](p, std::forward(args)...); - } - - // Non-standard access to the actual contained value. No need for this to - // throw. - int& Get() noexcept { return dummy_; } - const int& Get() const noexcept { return dummy_; } - - private: - static std::string GetInstanceString(int dummy) { - return absl::StrCat("ThrowingValue<", - exceptions_internal::GetSpecString(Spec), ">(", dummy, - ")"); - } - - int dummy_; -}; -// While not having to do with exceptions, explicitly delete comma operator, to -// make sure we don't use it on user-supplied types. -template -void operator,(const ThrowingValue&, T&&) = delete; -template -void operator,(T&&, const ThrowingValue&) = delete; - -/* - * Configuration enum for the ThrowingAllocator type that defines behavior for - * the lifetime of the instance. - * - * kEverythingThrows: Calls to the member functions may throw - * kNoThrowAllocate: Calls to the member functions will not throw - */ -enum class AllocSpec { - kEverythingThrows = 0, - kNoThrowAllocate = 1, -}; - -/* - * An allocator type which is instrumented to throw at a controlled time, or not - * to throw, using AllocSpec. The supported settings are the default of every - * function which is allowed to throw in a conforming allocator possibly - * throwing, or nothing throws, in line with the ABSL_ALLOCATOR_THROWS - * configuration macro. - */ -template -class ThrowingAllocator : private exceptions_internal::TrackedObject { - static constexpr bool IsSpecified(AllocSpec spec) { - return static_cast(Spec & spec); - } - - public: - using pointer = T*; - using const_pointer = const T*; - using reference = T&; - using const_reference = const T&; - using void_pointer = void*; - using const_void_pointer = const void*; - using value_type = T; - using size_type = size_t; - using difference_type = ptrdiff_t; - - using is_nothrow = - std::integral_constant; - using propagate_on_container_copy_assignment = std::true_type; - using propagate_on_container_move_assignment = std::true_type; - using propagate_on_container_swap = std::true_type; - using is_always_equal = std::false_type; - - ThrowingAllocator() : TrackedObject(GetInstanceString(next_id_)) { - exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION); - dummy_ = std::make_shared(next_id_++); - } - - template - ThrowingAllocator(const ThrowingAllocator& other) noexcept // NOLINT - : TrackedObject(GetInstanceString(*other.State())), - dummy_(other.State()) {} - - // According to C++11 standard [17.6.3.5], Table 28, the move/copy ctors of - // allocator shall not exit via an exception, thus they are marked noexcept. - ThrowingAllocator(const ThrowingAllocator& other) noexcept - : TrackedObject(GetInstanceString(*other.State())), - dummy_(other.State()) {} - - template - ThrowingAllocator(ThrowingAllocator&& other) noexcept // NOLINT - : TrackedObject(GetInstanceString(*other.State())), - dummy_(std::move(other.State())) {} - - ThrowingAllocator(ThrowingAllocator&& other) noexcept - : TrackedObject(GetInstanceString(*other.State())), - dummy_(std::move(other.State())) {} - - ~ThrowingAllocator() noexcept = default; - - ThrowingAllocator& operator=(const ThrowingAllocator& other) noexcept { - dummy_ = other.State(); - return *this; - } - - template - ThrowingAllocator& operator=( - const ThrowingAllocator& other) noexcept { - dummy_ = other.State(); - return *this; - } - - template - ThrowingAllocator& operator=(ThrowingAllocator&& other) noexcept { - dummy_ = std::move(other.State()); - return *this; - } - - template - struct rebind { - using other = ThrowingAllocator; - }; - - pointer allocate(size_type n) noexcept( - IsSpecified(AllocSpec::kNoThrowAllocate)) { - ReadStateAndMaybeThrow(ABSL_PRETTY_FUNCTION); - return static_cast(::operator new(n * sizeof(T))); - } - - pointer allocate(size_type n, const_void_pointer) noexcept( - IsSpecified(AllocSpec::kNoThrowAllocate)) { - return allocate(n); - } - - void deallocate(pointer ptr, size_type) noexcept { - ReadState(); - ::operator delete(static_cast(ptr)); - } - - template - void construct(U* ptr, Args&&... args) noexcept( - IsSpecified(AllocSpec::kNoThrowAllocate)) { - ReadStateAndMaybeThrow(ABSL_PRETTY_FUNCTION); - ::new (static_cast(ptr)) U(std::forward(args)...); - } - - template - void destroy(U* p) noexcept { - ReadState(); - p->~U(); - } - - size_type max_size() const noexcept { - return (std::numeric_limits::max)() / sizeof(value_type); - } - - ThrowingAllocator select_on_container_copy_construction() noexcept( - IsSpecified(AllocSpec::kNoThrowAllocate)) { - ReadStateAndMaybeThrow(ABSL_PRETTY_FUNCTION); - return *this; - } - - template - bool operator==(const ThrowingAllocator& other) const noexcept { - return dummy_ == other.dummy_; - } - - template - bool operator!=(const ThrowingAllocator& other) const noexcept { - return dummy_ != other.dummy_; - } - - template - friend class ThrowingAllocator; - - private: - static std::string GetInstanceString(int dummy) { - return absl::StrCat("ThrowingAllocator<", - exceptions_internal::GetSpecString(Spec), ">(", dummy, - ")"); - } - - const std::shared_ptr& State() const { return dummy_; } - std::shared_ptr& State() { return dummy_; } - - void ReadState() { - // we know that this will never be true, but the compiler doesn't, so this - // should safely force a read of the value. - if (*dummy_ < 0) std::abort(); - } - - void ReadStateAndMaybeThrow(absl::string_view msg) const { - if (!IsSpecified(AllocSpec::kNoThrowAllocate)) { - exceptions_internal::MaybeThrow( - absl::Substitute("Allocator id $0 threw from $1", *dummy_, msg)); - } - } - - static int next_id_; - std::shared_ptr dummy_; -}; - -template -int ThrowingAllocator::next_id_ = 0; - -// Tests for resource leaks by attempting to construct a T using args repeatedly -// until successful, using the countdown method. Side effects can then be -// tested for resource leaks. -template -void TestThrowingCtor(Args&&... args) { - struct Cleanup { - ~Cleanup() { exceptions_internal::UnsetCountdown(); } - } c; - for (int count = 0;; ++count) { - exceptions_internal::ConstructorTracker ct(count); - exceptions_internal::SetCountdown(count); - try { - T temp(std::forward(args)...); - static_cast(temp); - break; - } catch (const exceptions_internal::TestException&) { - } - } -} - -// Tests the nothrow guarantee of the provided nullary operation. If the an -// exception is thrown, the result will be AssertionFailure(). Otherwise, it -// will be AssertionSuccess(). -template -testing::AssertionResult TestNothrowOp(const Operation& operation) { - struct Cleanup { - Cleanup() { exceptions_internal::SetCountdown(); } - ~Cleanup() { exceptions_internal::UnsetCountdown(); } - } c; - try { - operation(); - return testing::AssertionSuccess(); - } catch (const exceptions_internal::TestException&) { - return testing::AssertionFailure() - << "TestException thrown during call to operation() when nothrow " - "guarantee was expected."; - } catch (...) { - return testing::AssertionFailure() - << "Unknown exception thrown during call to operation() when " - "nothrow guarantee was expected."; - } -} - -namespace exceptions_internal { - -// Dummy struct for ExceptionSafetyTestBuilder<> partial state. -struct UninitializedT {}; - -template -class DefaultFactory { - public: - explicit DefaultFactory(const T& t) : t_(t) {} - std::unique_ptr operator()() const { return absl::make_unique(t_); } - - private: - T t_; -}; - -template -using EnableIfTestable = typename absl::enable_if_t< - LazyContractsCount != 0 && - !std::is_same::value && - !std::is_same::value>; - -template -class ExceptionSafetyTestBuilder; - -} // namespace exceptions_internal - -/* - * Constructs an empty ExceptionSafetyTestBuilder. All - * ExceptionSafetyTestBuilder objects are immutable and all With[thing] mutation - * methods return new instances of ExceptionSafetyTestBuilder. - * - * In order to test a T for exception safety, a factory for that T, a testable - * operation, and at least one contract callback returning an assertion - * result must be applied using the respective methods. - */ -exceptions_internal::ExceptionSafetyTestBuilder<> MakeExceptionSafetyTester(); - -namespace exceptions_internal { -template -struct IsUniquePtr : std::false_type {}; - -template -struct IsUniquePtr> : std::true_type {}; - -template -struct FactoryPtrTypeHelper { - using type = decltype(std::declval()()); - - static_assert(IsUniquePtr::value, "Factories must return a unique_ptr"); -}; - -template -using FactoryPtrType = typename FactoryPtrTypeHelper::type; - -template -using FactoryElementType = typename FactoryPtrType::element_type; - -template -class ExceptionSafetyTest { - using Factory = std::function()>; - using Operation = std::function; - using Contract = std::function; - - public: - template - explicit ExceptionSafetyTest(const Factory& f, const Operation& op, - const Contracts&... contracts) - : factory_(f), operation_(op), contracts_{WrapContract(contracts)...} {} - - AssertionResult Test() const { - for (int count = 0;; ++count) { - exceptions_internal::ConstructorTracker ct(count); - - for (const auto& contract : contracts_) { - auto t_ptr = factory_(); - try { - SetCountdown(count); - operation_(t_ptr.get()); - // Unset for the case that the operation throws no exceptions, which - // would leave the countdown set and break the *next* exception safety - // test after this one. - UnsetCountdown(); - return AssertionSuccess(); - } catch (const exceptions_internal::TestException& e) { - if (!contract(t_ptr.get())) { - return AssertionFailure() << e.what() << " failed contract check"; - } - } - } - } - } - - private: - template - Contract WrapContract(const ContractFn& contract) { - return [contract](T* t_ptr) { return AssertionResult(contract(t_ptr)); }; - } - - Contract WrapContract(StrongGuaranteeTagType) { - return [this](T* t_ptr) { return AssertionResult(*factory_() == *t_ptr); }; - } - - Factory factory_; - Operation operation_; - std::vector contracts_; -}; - -/* - * Builds a tester object that tests if performing a operation on a T follows - * exception safety guarantees. Verification is done via contract assertion - * callbacks applied to T instances post-throw. - * - * Template parameters for ExceptionSafetyTestBuilder: - * - * - Factory: The factory object (passed in via tester.WithFactory(...) or - * tester.WithInitialValue(...)) must be invocable with the signature - * `std::unique_ptr operator()() const` where T is the type being tested. - * It is used for reliably creating identical T instances to test on. - * - * - Operation: The operation object (passsed in via tester.WithOperation(...) - * or tester.Test(...)) must be invocable with the signature - * `void operator()(T*) const` where T is the type being tested. It is used - * for performing steps on a T instance that may throw and that need to be - * checked for exception safety. Each call to the operation will receive a - * fresh T instance so it's free to modify and destroy the T instances as it - * pleases. - * - * - Contracts...: The contract assertion callback objects (passed in via - * tester.WithContracts(...)) must be invocable with the signature - * `testing::AssertionResult operator()(T*) const` where T is the type being - * tested. Contract assertion callbacks are provided T instances post-throw. - * They must return testing::AssertionSuccess when the type contracts of the - * provided T instance hold. If the type contracts of the T instance do not - * hold, they must return testing::AssertionFailure. Execution order of - * Contracts... is unspecified. They will each individually get a fresh T - * instance so they are free to modify and destroy the T instances as they - * please. - */ -template -class ExceptionSafetyTestBuilder { - public: - /* - * Returns a new ExceptionSafetyTestBuilder with an included T factory based - * on the provided T instance. The existing factory will not be included in - * the newly created tester instance. The created factory returns a new T - * instance by copy-constructing the provided const T& t. - * - * Preconditions for tester.WithInitialValue(const T& t): - * - * - The const T& t object must be copy-constructible where T is the type - * being tested. For non-copy-constructible objects, use the method - * tester.WithFactory(...). - */ - template - ExceptionSafetyTestBuilder, Operation, Contracts...> - WithInitialValue(const T& t) const { - return WithFactory(DefaultFactory(t)); - } - - /* - * Returns a new ExceptionSafetyTestBuilder with the provided T factory - * included. The existing factory will not be included in the newly-created - * tester instance. This method is intended for use with types lacking a copy - * constructor. Types that can be copy-constructed should instead use the - * method tester.WithInitialValue(...). - */ - template - ExceptionSafetyTestBuilder, Operation, Contracts...> - WithFactory(const NewFactory& new_factory) const { - return {new_factory, operation_, contracts_}; - } - - /* - * Returns a new ExceptionSafetyTestBuilder with the provided testable - * operation included. The existing operation will not be included in the - * newly created tester. - */ - template - ExceptionSafetyTestBuilder, Contracts...> - WithOperation(const NewOperation& new_operation) const { - return {factory_, new_operation, contracts_}; - } - - /* - * Returns a new ExceptionSafetyTestBuilder with the provided MoreContracts... - * combined with the Contracts... that were already included in the instance - * on which the method was called. Contracts... cannot be removed or replaced - * once added to an ExceptionSafetyTestBuilder instance. A fresh object must - * be created in order to get an empty Contracts... list. - * - * In addition to passing in custom contract assertion callbacks, this method - * accepts `testing::strong_guarantee` as an argument which checks T instances - * post-throw against freshly created T instances via operator== to verify - * that any state changes made during the execution of the operation were - * properly rolled back. - */ - template - ExceptionSafetyTestBuilder...> - WithContracts(const MoreContracts&... more_contracts) const { - return { - factory_, operation_, - std::tuple_cat(contracts_, std::tuple...>( - more_contracts...))}; - } - - /* - * Returns a testing::AssertionResult that is the reduced result of the - * exception safety algorithm. The algorithm short circuits and returns - * AssertionFailure after the first contract callback returns an - * AssertionFailure. Otherwise, if all contract callbacks return an - * AssertionSuccess, the reduced result is AssertionSuccess. - * - * The passed-in testable operation will not be saved in a new tester instance - * nor will it modify/replace the existing tester instance. This is useful - * when each operation being tested is unique and does not need to be reused. - * - * Preconditions for tester.Test(const NewOperation& new_operation): - * - * - May only be called after at least one contract assertion callback and a - * factory or initial value have been provided. - */ - template < - typename NewOperation, - typename = EnableIfTestable> - testing::AssertionResult Test(const NewOperation& new_operation) const { - return TestImpl(new_operation, absl::index_sequence_for()); - } - - /* - * Returns a testing::AssertionResult that is the reduced result of the - * exception safety algorithm. The algorithm short circuits and returns - * AssertionFailure after the first contract callback returns an - * AssertionFailure. Otherwise, if all contract callbacks return an - * AssertionSuccess, the reduced result is AssertionSuccess. - * - * Preconditions for tester.Test(): - * - * - May only be called after at least one contract assertion callback, a - * factory or initial value and a testable operation have been provided. - */ - template < - typename LazyOperation = Operation, - typename = EnableIfTestable> - testing::AssertionResult Test() const { - return Test(operation_); - } - - private: - template - friend class ExceptionSafetyTestBuilder; - - friend ExceptionSafetyTestBuilder<> testing::MakeExceptionSafetyTester(); - - ExceptionSafetyTestBuilder() {} - - ExceptionSafetyTestBuilder(const Factory& f, const Operation& o, - const std::tuple& i) - : factory_(f), operation_(o), contracts_(i) {} - - template - testing::AssertionResult TestImpl(SelectedOperation selected_operation, - absl::index_sequence) const { - return ExceptionSafetyTest>( - factory_, selected_operation, std::get(contracts_)...) - .Test(); - } - - Factory factory_; - Operation operation_; - std::tuple contracts_; -}; - -} // namespace exceptions_internal - -} // namespace testing - -#endif // ABSL_HAVE_EXCEPTIONS - -#endif // ABSL_BASE_INTERNAL_EXCEPTION_SAFETY_TESTING_H_ diff --git a/src/third_party/abseil-cpp/absl/base/internal/exception_testing.h b/src/third_party/abseil-cpp/absl/base/internal/exception_testing.h deleted file mode 100644 index 01b5465571..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/exception_testing.h +++ /dev/null @@ -1,42 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Testing utilities for ABSL types which throw exceptions. - -#ifndef ABSL_BASE_INTERNAL_EXCEPTION_TESTING_H_ -#define ABSL_BASE_INTERNAL_EXCEPTION_TESTING_H_ - -#include "gtest/gtest.h" -#include "absl/base/config.h" - -// ABSL_BASE_INTERNAL_EXPECT_FAIL tests either for a specified thrown exception -// if exceptions are enabled, or for death with a specified text in the error -// message -#ifdef ABSL_HAVE_EXCEPTIONS - -#define ABSL_BASE_INTERNAL_EXPECT_FAIL(expr, exception_t, text) \ - EXPECT_THROW(expr, exception_t) - -#elif defined(__ANDROID__) -// Android asserts do not log anywhere that gtest can currently inspect. -// So we expect exit, but cannot match the message. -#define ABSL_BASE_INTERNAL_EXPECT_FAIL(expr, exception_t, text) \ - EXPECT_DEATH(expr, ".*") -#else -#define ABSL_BASE_INTERNAL_EXPECT_FAIL(expr, exception_t, text) \ - EXPECT_DEATH_IF_SUPPORTED(expr, text) - -#endif - -#endif // ABSL_BASE_INTERNAL_EXCEPTION_TESTING_H_ diff --git a/src/third_party/abseil-cpp/absl/base/internal/fast_type_id.h b/src/third_party/abseil-cpp/absl/base/internal/fast_type_id.h deleted file mode 100644 index a547b3a8bc..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/fast_type_id.h +++ /dev/null @@ -1,50 +0,0 @@ -// -// Copyright 2020 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// - -#ifndef ABSL_BASE_INTERNAL_FAST_TYPE_ID_H_ -#define ABSL_BASE_INTERNAL_FAST_TYPE_ID_H_ - -#include "absl/base/config.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace base_internal { - -template -struct FastTypeTag { - constexpr static char dummy_var = 0; -}; - -#ifdef ABSL_INTERNAL_NEED_REDUNDANT_CONSTEXPR_DECL -template -constexpr char FastTypeTag::dummy_var; -#endif - -// FastTypeId() evaluates at compile/link-time to a unique pointer for the -// passed-in type. These are meant to be good match for keys into maps or -// straight up comparisons. -using FastTypeIdType = const void*; - -template -constexpr inline FastTypeIdType FastTypeId() { - return &FastTypeTag::dummy_var; -} - -} // namespace base_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_BASE_INTERNAL_FAST_TYPE_ID_H_ diff --git a/src/third_party/abseil-cpp/absl/base/internal/fast_type_id_test.cc b/src/third_party/abseil-cpp/absl/base/internal/fast_type_id_test.cc deleted file mode 100644 index 16f3c1458b..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/fast_type_id_test.cc +++ /dev/null @@ -1,123 +0,0 @@ -// Copyright 2020 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/base/internal/fast_type_id.h" - -#include -#include -#include - -#include "gtest/gtest.h" - -namespace { -namespace bi = absl::base_internal; - -// NOLINTNEXTLINE -#define PRIM_TYPES(A) \ - A(bool) \ - A(short) \ - A(unsigned short) \ - A(int) \ - A(unsigned int) \ - A(long) \ - A(unsigned long) \ - A(long long) \ - A(unsigned long long) \ - A(float) \ - A(double) \ - A(long double) - -TEST(FastTypeIdTest, PrimitiveTypes) { - bi::FastTypeIdType type_ids[] = { -#define A(T) bi::FastTypeId(), - PRIM_TYPES(A) -#undef A -#define A(T) bi::FastTypeId(), - PRIM_TYPES(A) -#undef A -#define A(T) bi::FastTypeId(), - PRIM_TYPES(A) -#undef A -#define A(T) bi::FastTypeId(), - PRIM_TYPES(A) -#undef A - }; - size_t total_type_ids = sizeof(type_ids) / sizeof(bi::FastTypeIdType); - - for (int i = 0; i < total_type_ids; ++i) { - EXPECT_EQ(type_ids[i], type_ids[i]); - for (int j = 0; j < i; ++j) { - EXPECT_NE(type_ids[i], type_ids[j]); - } - } -} - -#define FIXED_WIDTH_TYPES(A) \ - A(int8_t) \ - A(uint8_t) \ - A(int16_t) \ - A(uint16_t) \ - A(int32_t) \ - A(uint32_t) \ - A(int64_t) \ - A(uint64_t) - -TEST(FastTypeIdTest, FixedWidthTypes) { - bi::FastTypeIdType type_ids[] = { -#define A(T) bi::FastTypeId(), - FIXED_WIDTH_TYPES(A) -#undef A -#define A(T) bi::FastTypeId(), - FIXED_WIDTH_TYPES(A) -#undef A -#define A(T) bi::FastTypeId(), - FIXED_WIDTH_TYPES(A) -#undef A -#define A(T) bi::FastTypeId(), - FIXED_WIDTH_TYPES(A) -#undef A - }; - size_t total_type_ids = sizeof(type_ids) / sizeof(bi::FastTypeIdType); - - for (int i = 0; i < total_type_ids; ++i) { - EXPECT_EQ(type_ids[i], type_ids[i]); - for (int j = 0; j < i; ++j) { - EXPECT_NE(type_ids[i], type_ids[j]); - } - } -} - -TEST(FastTypeIdTest, AliasTypes) { - using int_alias = int; - EXPECT_EQ(bi::FastTypeId(), bi::FastTypeId()); -} - -TEST(FastTypeIdTest, TemplateSpecializations) { - EXPECT_NE(bi::FastTypeId>(), - bi::FastTypeId>()); - - EXPECT_NE((bi::FastTypeId>()), - (bi::FastTypeId>())); -} - -struct Base {}; -struct Derived : Base {}; -struct PDerived : private Base {}; - -TEST(FastTypeIdTest, Inheritance) { - EXPECT_NE(bi::FastTypeId(), bi::FastTypeId()); - EXPECT_NE(bi::FastTypeId(), bi::FastTypeId()); -} - -} // namespace diff --git a/src/third_party/abseil-cpp/absl/base/internal/hide_ptr.h b/src/third_party/abseil-cpp/absl/base/internal/hide_ptr.h deleted file mode 100644 index 1dba80909a..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/hide_ptr.h +++ /dev/null @@ -1,51 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#ifndef ABSL_BASE_INTERNAL_HIDE_PTR_H_ -#define ABSL_BASE_INTERNAL_HIDE_PTR_H_ - -#include - -#include "absl/base/config.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace base_internal { - -// Arbitrary value with high bits set. Xor'ing with it is unlikely -// to map one valid pointer to another valid pointer. -constexpr uintptr_t HideMask() { - return (uintptr_t{0xF03A5F7BU} << (sizeof(uintptr_t) - 4) * 8) | 0xF03A5F7BU; -} - -// Hide a pointer from the leak checker. For internal use only. -// Differs from absl::IgnoreLeak(ptr) in that absl::IgnoreLeak(ptr) causes ptr -// and all objects reachable from ptr to be ignored by the leak checker. -template -inline uintptr_t HidePtr(T* ptr) { - return reinterpret_cast(ptr) ^ HideMask(); -} - -// Return a pointer that has been hidden from the leak checker. -// For internal use only. -template -inline T* UnhidePtr(uintptr_t hidden) { - return reinterpret_cast(hidden ^ HideMask()); -} - -} // namespace base_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_BASE_INTERNAL_HIDE_PTR_H_ diff --git a/src/third_party/abseil-cpp/absl/base/internal/identity.h b/src/third_party/abseil-cpp/absl/base/internal/identity.h deleted file mode 100644 index a3154ed7bc..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/identity.h +++ /dev/null @@ -1,37 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// - -#ifndef ABSL_BASE_INTERNAL_IDENTITY_H_ -#define ABSL_BASE_INTERNAL_IDENTITY_H_ - -#include "absl/base/config.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace internal { - -template -struct identity { - typedef T type; -}; - -template -using identity_t = typename identity::type; - -} // namespace internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_BASE_INTERNAL_IDENTITY_H_ diff --git a/src/third_party/abseil-cpp/absl/base/internal/inline_variable.h b/src/third_party/abseil-cpp/absl/base/internal/inline_variable.h deleted file mode 100644 index df933faff5..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/inline_variable.h +++ /dev/null @@ -1,107 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#ifndef ABSL_BASE_INTERNAL_INLINE_VARIABLE_H_ -#define ABSL_BASE_INTERNAL_INLINE_VARIABLE_H_ - -#include - -#include "absl/base/internal/identity.h" - -// File: -// This file define a macro that allows the creation of or emulation of C++17 -// inline variables based on whether or not the feature is supported. - -//////////////////////////////////////////////////////////////////////////////// -// Macro: ABSL_INTERNAL_INLINE_CONSTEXPR(type, name, init) -// -// Description: -// Expands to the equivalent of an inline constexpr instance of the specified -// `type` and `name`, initialized to the value `init`. If the compiler being -// used is detected as supporting actual inline variables as a language -// feature, then the macro expands to an actual inline variable definition. -// -// Requires: -// `type` is a type that is usable in an extern variable declaration. -// -// Requires: `name` is a valid identifier -// -// Requires: -// `init` is an expression that can be used in the following definition: -// constexpr type name = init; -// -// Usage: -// -// // Equivalent to: `inline constexpr size_t variant_npos = -1;` -// ABSL_INTERNAL_INLINE_CONSTEXPR(size_t, variant_npos, -1); -// -// Differences in implementation: -// For a direct, language-level inline variable, decltype(name) will be the -// type that was specified along with const qualification, whereas for -// emulated inline variables, decltype(name) may be different (in practice -// it will likely be a reference type). -//////////////////////////////////////////////////////////////////////////////// - -#ifdef __cpp_inline_variables - -// Clang's -Wmissing-variable-declarations option erroneously warned that -// inline constexpr objects need to be pre-declared. This has now been fixed, -// but we will need to support this workaround for people building with older -// versions of clang. -// -// Bug: https://bugs.llvm.org/show_bug.cgi?id=35862 -// -// Note: -// identity_t is used here so that the const and name are in the -// appropriate place for pointer types, reference types, function pointer -// types, etc.. -#if defined(__clang__) -#define ABSL_INTERNAL_EXTERN_DECL(type, name) \ - extern const ::absl::internal::identity_t name; -#else // Otherwise, just define the macro to do nothing. -#define ABSL_INTERNAL_EXTERN_DECL(type, name) -#endif // defined(__clang__) - -// See above comment at top of file for details. -#define ABSL_INTERNAL_INLINE_CONSTEXPR(type, name, init) \ - ABSL_INTERNAL_EXTERN_DECL(type, name) \ - inline constexpr ::absl::internal::identity_t name = init - -#else - -// See above comment at top of file for details. -// -// Note: -// identity_t is used here so that the const and name are in the -// appropriate place for pointer types, reference types, function pointer -// types, etc.. -#define ABSL_INTERNAL_INLINE_CONSTEXPR(var_type, name, init) \ - template \ - struct AbslInternalInlineVariableHolder##name { \ - static constexpr ::absl::internal::identity_t kInstance = init; \ - }; \ - \ - template \ - constexpr ::absl::internal::identity_t \ - AbslInternalInlineVariableHolder##name::kInstance; \ - \ - static constexpr const ::absl::internal::identity_t& \ - name = /* NOLINT */ \ - AbslInternalInlineVariableHolder##name<>::kInstance; \ - static_assert(sizeof(void (*)(decltype(name))) != 0, \ - "Silence unused variable warnings.") - -#endif // __cpp_inline_variables - -#endif // ABSL_BASE_INTERNAL_INLINE_VARIABLE_H_ diff --git a/src/third_party/abseil-cpp/absl/base/internal/inline_variable_testing.h b/src/third_party/abseil-cpp/absl/base/internal/inline_variable_testing.h deleted file mode 100644 index f3c81459fa..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/inline_variable_testing.h +++ /dev/null @@ -1,46 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#ifndef ABSL_BASE_INTERNAL_INLINE_VARIABLE_TESTING_H_ -#define ABSL_BASE_INTERNAL_INLINE_VARIABLE_TESTING_H_ - -#include "absl/base/internal/inline_variable.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace inline_variable_testing_internal { - -struct Foo { - int value = 5; -}; - -ABSL_INTERNAL_INLINE_CONSTEXPR(Foo, inline_variable_foo, {}); -ABSL_INTERNAL_INLINE_CONSTEXPR(Foo, other_inline_variable_foo, {}); - -ABSL_INTERNAL_INLINE_CONSTEXPR(int, inline_variable_int, 5); -ABSL_INTERNAL_INLINE_CONSTEXPR(int, other_inline_variable_int, 5); - -ABSL_INTERNAL_INLINE_CONSTEXPR(void(*)(), inline_variable_fun_ptr, nullptr); - -const Foo& get_foo_a(); -const Foo& get_foo_b(); - -const int& get_int_a(); -const int& get_int_b(); - -} // namespace inline_variable_testing_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_BASE_INTERNAL_INLINE_VARIABLE_TESTING_H_ diff --git a/src/third_party/abseil-cpp/absl/base/internal/invoke.h b/src/third_party/abseil-cpp/absl/base/internal/invoke.h deleted file mode 100644 index 643c2a42f0..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/invoke.h +++ /dev/null @@ -1,241 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// absl::base_internal::invoke(f, args...) is an implementation of -// INVOKE(f, args...) from section [func.require] of the C++ standard. -// When compiled as C++17 and later versions, it is implemented as an alias of -// std::invoke. -// -// [func.require] -// Define INVOKE (f, t1, t2, ..., tN) as follows: -// 1. (t1.*f)(t2, ..., tN) when f is a pointer to a member function of a class T -// and t1 is an object of type T or a reference to an object of type T or a -// reference to an object of a type derived from T; -// 2. ((*t1).*f)(t2, ..., tN) when f is a pointer to a member function of a -// class T and t1 is not one of the types described in the previous item; -// 3. t1.*f when N == 1 and f is a pointer to member data of a class T and t1 is -// an object of type T or a reference to an object of type T or a reference -// to an object of a type derived from T; -// 4. (*t1).*f when N == 1 and f is a pointer to member data of a class T and t1 -// is not one of the types described in the previous item; -// 5. f(t1, t2, ..., tN) in all other cases. -// -// The implementation is SFINAE-friendly: substitution failure within invoke() -// isn't an error. - -#ifndef ABSL_BASE_INTERNAL_INVOKE_H_ -#define ABSL_BASE_INTERNAL_INVOKE_H_ - -#include "absl/base/config.h" - -#if ABSL_INTERNAL_CPLUSPLUS_LANG >= 201703L - -#include - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace base_internal { - -using std::invoke; -using std::invoke_result_t; -using std::is_invocable_r; - -} // namespace base_internal -ABSL_NAMESPACE_END -} // namespace absl - -#else // ABSL_INTERNAL_CPLUSPLUS_LANG >= 201703L - -#include -#include -#include - -#include "absl/meta/type_traits.h" - -// The following code is internal implementation detail. See the comment at the -// top of this file for the API documentation. - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace base_internal { - -// The five classes below each implement one of the clauses from the definition -// of INVOKE. The inner class template Accept checks whether the -// clause is applicable; static function template Invoke(f, args...) does the -// invocation. -// -// By separating the clause selection logic from invocation we make sure that -// Invoke() does exactly what the standard says. - -template -struct StrippedAccept { - template - struct Accept : Derived::template AcceptImpl::type>::type...> {}; -}; - -// (t1.*f)(t2, ..., tN) when f is a pointer to a member function of a class T -// and t1 is an object of type T or a reference to an object of type T or a -// reference to an object of a type derived from T. -struct MemFunAndRef : StrippedAccept { - template - struct AcceptImpl : std::false_type {}; - - template - struct AcceptImpl - : std::integral_constant::value && - absl::is_function::value> { - }; - - template - static decltype((std::declval().* - std::declval())(std::declval()...)) - Invoke(MemFun&& mem_fun, Obj&& obj, Args&&... args) { -// Ignore bogus GCC warnings on this line. -// See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101436 for similar example. -#if ABSL_INTERNAL_HAVE_MIN_GNUC_VERSION(11, 0) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Warray-bounds" -#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" -#endif - return (std::forward(obj).* - std::forward(mem_fun))(std::forward(args)...); -#if ABSL_INTERNAL_HAVE_MIN_GNUC_VERSION(11, 0) -#pragma GCC diagnostic pop -#endif - } -}; - -// ((*t1).*f)(t2, ..., tN) when f is a pointer to a member function of a -// class T and t1 is not one of the types described in the previous item. -struct MemFunAndPtr : StrippedAccept { - template - struct AcceptImpl : std::false_type {}; - - template - struct AcceptImpl - : std::integral_constant::value && - absl::is_function::value> { - }; - - template - static decltype(((*std::declval()).* - std::declval())(std::declval()...)) - Invoke(MemFun&& mem_fun, Ptr&& ptr, Args&&... args) { - return ((*std::forward(ptr)).* - std::forward(mem_fun))(std::forward(args)...); - } -}; - -// t1.*f when N == 1 and f is a pointer to member data of a class T and t1 is -// an object of type T or a reference to an object of type T or a reference -// to an object of a type derived from T. -struct DataMemAndRef : StrippedAccept { - template - struct AcceptImpl : std::false_type {}; - - template - struct AcceptImpl - : std::integral_constant::value && - !absl::is_function::value> {}; - - template - static decltype(std::declval().*std::declval()) Invoke( - DataMem&& data_mem, Ref&& ref) { - return std::forward(ref).*std::forward(data_mem); - } -}; - -// (*t1).*f when N == 1 and f is a pointer to member data of a class T and t1 -// is not one of the types described in the previous item. -struct DataMemAndPtr : StrippedAccept { - template - struct AcceptImpl : std::false_type {}; - - template - struct AcceptImpl - : std::integral_constant::value && - !absl::is_function::value> {}; - - template - static decltype((*std::declval()).*std::declval()) Invoke( - DataMem&& data_mem, Ptr&& ptr) { - return (*std::forward(ptr)).*std::forward(data_mem); - } -}; - -// f(t1, t2, ..., tN) in all other cases. -struct Callable { - // Callable doesn't have Accept because it's the last clause that gets picked - // when none of the previous clauses are applicable. - template - static decltype(std::declval()(std::declval()...)) Invoke( - F&& f, Args&&... args) { - return std::forward(f)(std::forward(args)...); - } -}; - -// Resolves to the first matching clause. -template -struct Invoker { - typedef typename std::conditional< - MemFunAndRef::Accept::value, MemFunAndRef, - typename std::conditional< - MemFunAndPtr::Accept::value, MemFunAndPtr, - typename std::conditional< - DataMemAndRef::Accept::value, DataMemAndRef, - typename std::conditional::value, - DataMemAndPtr, Callable>::type>::type>:: - type>::type type; -}; - -// The result type of Invoke. -template -using invoke_result_t = decltype(Invoker::type::Invoke( - std::declval(), std::declval()...)); - -// Invoke(f, args...) is an implementation of INVOKE(f, args...) from section -// [func.require] of the C++ standard. -template -invoke_result_t invoke(F&& f, Args&&... args) { - return Invoker::type::Invoke(std::forward(f), - std::forward(args)...); -} - -template -struct IsInvocableRImpl : std::false_type {}; - -template -struct IsInvocableRImpl< - absl::void_t >, R, F, - Args...> - : std::integral_constant< - bool, - std::is_convertible, - R>::value || - std::is_void::value> {}; - -// Type trait whose member `value` is true if invoking `F` with `Args` is valid, -// and either the return type is convertible to `R`, or `R` is void. -// C++11-compatible version of `std::is_invocable_r`. -template -using is_invocable_r = IsInvocableRImpl; - -} // namespace base_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_INTERNAL_CPLUSPLUS_LANG >= 201703L - -#endif // ABSL_BASE_INTERNAL_INVOKE_H_ diff --git a/src/third_party/abseil-cpp/absl/base/internal/low_level_alloc.cc b/src/third_party/abseil-cpp/absl/base/internal/low_level_alloc.cc deleted file mode 100644 index 662167b08a..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/low_level_alloc.cc +++ /dev/null @@ -1,620 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// A low-level allocator that can be used by other low-level -// modules without introducing dependency cycles. -// This allocator is slow and wasteful of memory; -// it should not be used when performance is key. - -#include "absl/base/internal/low_level_alloc.h" - -#include - -#include "absl/base/call_once.h" -#include "absl/base/config.h" -#include "absl/base/internal/direct_mmap.h" -#include "absl/base/internal/scheduling_mode.h" -#include "absl/base/macros.h" -#include "absl/base/thread_annotations.h" - -// LowLevelAlloc requires that the platform support low-level -// allocation of virtual memory. Platforms lacking this cannot use -// LowLevelAlloc. -#ifndef ABSL_LOW_LEVEL_ALLOC_MISSING - -#ifndef _WIN32 -#include -#include -#include -#include -#else -#include -#endif - -#include -#include -#include -#include -#include -#include // for placement-new - -#include "absl/base/dynamic_annotations.h" -#include "absl/base/internal/raw_logging.h" -#include "absl/base/internal/spinlock.h" - -// MAP_ANONYMOUS -#if defined(__APPLE__) -// For mmap, Linux defines both MAP_ANONYMOUS and MAP_ANON and says MAP_ANON is -// deprecated. In Darwin, MAP_ANON is all there is. -#if !defined MAP_ANONYMOUS -#define MAP_ANONYMOUS MAP_ANON -#endif // !MAP_ANONYMOUS -#endif // __APPLE__ - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace base_internal { - -// A first-fit allocator with amortized logarithmic free() time. - -// --------------------------------------------------------------------------- -static const int kMaxLevel = 30; - -namespace { -// This struct describes one allocated block, or one free block. -struct AllocList { - struct Header { - // Size of entire region, including this field. Must be - // first. Valid in both allocated and unallocated blocks. - uintptr_t size; - - // kMagicAllocated or kMagicUnallocated xor this. - uintptr_t magic; - - // Pointer to parent arena. - LowLevelAlloc::Arena *arena; - - // Aligns regions to 0 mod 2*sizeof(void*). - void *dummy_for_alignment; - } header; - - // Next two fields: in unallocated blocks: freelist skiplist data - // in allocated blocks: overlaps with client data - - // Levels in skiplist used. - int levels; - - // Actually has levels elements. The AllocList node may not have room - // for all kMaxLevel entries. See max_fit in LLA_SkiplistLevels(). - AllocList *next[kMaxLevel]; -}; -} // namespace - -// --------------------------------------------------------------------------- -// A trivial skiplist implementation. This is used to keep the freelist -// in address order while taking only logarithmic time per insert and delete. - -// An integer approximation of log2(size/base) -// Requires size >= base. -static int IntLog2(size_t size, size_t base) { - int result = 0; - for (size_t i = size; i > base; i >>= 1) { // i == floor(size/2**result) - result++; - } - // floor(size / 2**result) <= base < floor(size / 2**(result-1)) - // => log2(size/(base+1)) <= result < 1+log2(size/base) - // => result ~= log2(size/base) - return result; -} - -// Return a random integer n: p(n)=1/(2**n) if 1 <= n; p(n)=0 if n < 1. -static int Random(uint32_t *state) { - uint32_t r = *state; - int result = 1; - while ((((r = r*1103515245 + 12345) >> 30) & 1) == 0) { - result++; - } - *state = r; - return result; -} - -// Return a number of skiplist levels for a node of size bytes, where -// base is the minimum node size. Compute level=log2(size / base)+n -// where n is 1 if random is false and otherwise a random number generated with -// the standard distribution for a skiplist: See Random() above. -// Bigger nodes tend to have more skiplist levels due to the log2(size / base) -// term, so first-fit searches touch fewer nodes. "level" is clipped so -// level(level) > max_fit) level = static_cast(max_fit); - if (level > kMaxLevel-1) level = kMaxLevel - 1; - ABSL_RAW_CHECK(level >= 1, "block not big enough for even one level"); - return level; -} - -// Return "atleast", the first element of AllocList *head s.t. *atleast >= *e. -// For 0 <= i < head->levels, set prev[i] to "no_greater", where no_greater -// points to the last element at level i in the AllocList less than *e, or is -// head if no such element exists. -static AllocList *LLA_SkiplistSearch(AllocList *head, - AllocList *e, AllocList **prev) { - AllocList *p = head; - for (int level = head->levels - 1; level >= 0; level--) { - for (AllocList *n; (n = p->next[level]) != nullptr && n < e; p = n) { - } - prev[level] = p; - } - return (head->levels == 0) ? nullptr : prev[0]->next[0]; -} - -// Insert element *e into AllocList *head. Set prev[] as LLA_SkiplistSearch. -// Requires that e->levels be previously set by the caller (using -// LLA_SkiplistLevels()) -static void LLA_SkiplistInsert(AllocList *head, AllocList *e, - AllocList **prev) { - LLA_SkiplistSearch(head, e, prev); - for (; head->levels < e->levels; head->levels++) { // extend prev pointers - prev[head->levels] = head; // to all *e's levels - } - for (int i = 0; i != e->levels; i++) { // add element to list - e->next[i] = prev[i]->next[i]; - prev[i]->next[i] = e; - } -} - -// Remove element *e from AllocList *head. Set prev[] as LLA_SkiplistSearch(). -// Requires that e->levels be previous set by the caller (using -// LLA_SkiplistLevels()) -static void LLA_SkiplistDelete(AllocList *head, AllocList *e, - AllocList **prev) { - AllocList *found = LLA_SkiplistSearch(head, e, prev); - ABSL_RAW_CHECK(e == found, "element not in freelist"); - for (int i = 0; i != e->levels && prev[i]->next[i] == e; i++) { - prev[i]->next[i] = e->next[i]; - } - while (head->levels > 0 && head->next[head->levels - 1] == nullptr) { - head->levels--; // reduce head->levels if level unused - } -} - -// --------------------------------------------------------------------------- -// Arena implementation - -// Metadata for an LowLevelAlloc arena instance. -struct LowLevelAlloc::Arena { - // Constructs an arena with the given LowLevelAlloc flags. - explicit Arena(uint32_t flags_value); - - base_internal::SpinLock mu; - // Head of free list, sorted by address - AllocList freelist ABSL_GUARDED_BY(mu); - // Count of allocated blocks - int32_t allocation_count ABSL_GUARDED_BY(mu); - // flags passed to NewArena - const uint32_t flags; - // Result of sysconf(_SC_PAGESIZE) - const size_t pagesize; - // Lowest power of two >= max(16, sizeof(AllocList)) - const size_t round_up; - // Smallest allocation block size - const size_t min_size; - // PRNG state - uint32_t random ABSL_GUARDED_BY(mu); -}; - -namespace { -// Static storage space for the lazily-constructed, default global arena -// instances. We require this space because the whole point of LowLevelAlloc -// is to avoid relying on malloc/new. -alignas(LowLevelAlloc::Arena) unsigned char default_arena_storage[sizeof( - LowLevelAlloc::Arena)]; -alignas(LowLevelAlloc::Arena) unsigned char unhooked_arena_storage[sizeof( - LowLevelAlloc::Arena)]; -#ifndef ABSL_LOW_LEVEL_ALLOC_ASYNC_SIGNAL_SAFE_MISSING -alignas( - LowLevelAlloc::Arena) unsigned char unhooked_async_sig_safe_arena_storage - [sizeof(LowLevelAlloc::Arena)]; -#endif - -// We must use LowLevelCallOnce here to construct the global arenas, rather than -// using function-level statics, to avoid recursively invoking the scheduler. -absl::once_flag create_globals_once; - -void CreateGlobalArenas() { - new (&default_arena_storage) - LowLevelAlloc::Arena(LowLevelAlloc::kCallMallocHook); - new (&unhooked_arena_storage) LowLevelAlloc::Arena(0); -#ifndef ABSL_LOW_LEVEL_ALLOC_ASYNC_SIGNAL_SAFE_MISSING - new (&unhooked_async_sig_safe_arena_storage) - LowLevelAlloc::Arena(LowLevelAlloc::kAsyncSignalSafe); -#endif -} - -// Returns a global arena that does not call into hooks. Used by NewArena() -// when kCallMallocHook is not set. -LowLevelAlloc::Arena* UnhookedArena() { - base_internal::LowLevelCallOnce(&create_globals_once, CreateGlobalArenas); - return reinterpret_cast(&unhooked_arena_storage); -} - -#ifndef ABSL_LOW_LEVEL_ALLOC_ASYNC_SIGNAL_SAFE_MISSING -// Returns a global arena that is async-signal safe. Used by NewArena() when -// kAsyncSignalSafe is set. -LowLevelAlloc::Arena *UnhookedAsyncSigSafeArena() { - base_internal::LowLevelCallOnce(&create_globals_once, CreateGlobalArenas); - return reinterpret_cast( - &unhooked_async_sig_safe_arena_storage); -} -#endif - -} // namespace - -// Returns the default arena, as used by LowLevelAlloc::Alloc() and friends. -LowLevelAlloc::Arena *LowLevelAlloc::DefaultArena() { - base_internal::LowLevelCallOnce(&create_globals_once, CreateGlobalArenas); - return reinterpret_cast(&default_arena_storage); -} - -// magic numbers to identify allocated and unallocated blocks -static const uintptr_t kMagicAllocated = 0x4c833e95U; -static const uintptr_t kMagicUnallocated = ~kMagicAllocated; - -namespace { -class ABSL_SCOPED_LOCKABLE ArenaLock { - public: - explicit ArenaLock(LowLevelAlloc::Arena *arena) - ABSL_EXCLUSIVE_LOCK_FUNCTION(arena->mu) - : arena_(arena) { -#ifndef ABSL_LOW_LEVEL_ALLOC_ASYNC_SIGNAL_SAFE_MISSING - if ((arena->flags & LowLevelAlloc::kAsyncSignalSafe) != 0) { - sigset_t all; - sigfillset(&all); - mask_valid_ = pthread_sigmask(SIG_BLOCK, &all, &mask_) == 0; - } -#endif - arena_->mu.Lock(); - } - ~ArenaLock() { ABSL_RAW_CHECK(left_, "haven't left Arena region"); } - void Leave() ABSL_UNLOCK_FUNCTION() { - arena_->mu.Unlock(); -#ifndef ABSL_LOW_LEVEL_ALLOC_ASYNC_SIGNAL_SAFE_MISSING - if (mask_valid_) { - const int err = pthread_sigmask(SIG_SETMASK, &mask_, nullptr); - if (err != 0) { - ABSL_RAW_LOG(FATAL, "pthread_sigmask failed: %d", err); - } - } -#endif - left_ = true; - } - - private: - bool left_ = false; // whether left region -#ifndef ABSL_LOW_LEVEL_ALLOC_ASYNC_SIGNAL_SAFE_MISSING - bool mask_valid_ = false; - sigset_t mask_; // old mask of blocked signals -#endif - LowLevelAlloc::Arena *arena_; - ArenaLock(const ArenaLock &) = delete; - ArenaLock &operator=(const ArenaLock &) = delete; -}; -} // namespace - -// create an appropriate magic number for an object at "ptr" -// "magic" should be kMagicAllocated or kMagicUnallocated -inline static uintptr_t Magic(uintptr_t magic, AllocList::Header *ptr) { - return magic ^ reinterpret_cast(ptr); -} - -namespace { -size_t GetPageSize() { -#ifdef _WIN32 - SYSTEM_INFO system_info; - GetSystemInfo(&system_info); - return std::max(system_info.dwPageSize, system_info.dwAllocationGranularity); -#elif defined(__wasm__) || defined(__asmjs__) - return getpagesize(); -#else - return static_cast(sysconf(_SC_PAGESIZE)); -#endif -} - -size_t RoundedUpBlockSize() { - // Round up block sizes to a power of two close to the header size. - size_t round_up = 16; - while (round_up < sizeof(AllocList::Header)) { - round_up += round_up; - } - return round_up; -} - -} // namespace - -LowLevelAlloc::Arena::Arena(uint32_t flags_value) - : mu(base_internal::SCHEDULE_KERNEL_ONLY), - allocation_count(0), - flags(flags_value), - pagesize(GetPageSize()), - round_up(RoundedUpBlockSize()), - min_size(2 * round_up), - random(0) { - freelist.header.size = 0; - freelist.header.magic = - Magic(kMagicUnallocated, &freelist.header); - freelist.header.arena = this; - freelist.levels = 0; - memset(freelist.next, 0, sizeof(freelist.next)); -} - -// L < meta_data_arena->mu -LowLevelAlloc::Arena *LowLevelAlloc::NewArena(uint32_t flags) { - Arena *meta_data_arena = DefaultArena(); -#ifndef ABSL_LOW_LEVEL_ALLOC_ASYNC_SIGNAL_SAFE_MISSING - if ((flags & LowLevelAlloc::kAsyncSignalSafe) != 0) { - meta_data_arena = UnhookedAsyncSigSafeArena(); - } else // NOLINT(readability/braces) -#endif - if ((flags & LowLevelAlloc::kCallMallocHook) == 0) { - meta_data_arena = UnhookedArena(); - } - Arena *result = - new (AllocWithArena(sizeof (*result), meta_data_arena)) Arena(flags); - return result; -} - -// L < arena->mu, L < arena->arena->mu -bool LowLevelAlloc::DeleteArena(Arena *arena) { - ABSL_RAW_CHECK( - arena != nullptr && arena != DefaultArena() && arena != UnhookedArena(), - "may not delete default arena"); - ArenaLock section(arena); - if (arena->allocation_count != 0) { - section.Leave(); - return false; - } - while (arena->freelist.next[0] != nullptr) { - AllocList *region = arena->freelist.next[0]; - size_t size = region->header.size; - arena->freelist.next[0] = region->next[0]; - ABSL_RAW_CHECK( - region->header.magic == Magic(kMagicUnallocated, ®ion->header), - "bad magic number in DeleteArena()"); - ABSL_RAW_CHECK(region->header.arena == arena, - "bad arena pointer in DeleteArena()"); - ABSL_RAW_CHECK(size % arena->pagesize == 0, - "empty arena has non-page-aligned block size"); - ABSL_RAW_CHECK(reinterpret_cast(region) % arena->pagesize == 0, - "empty arena has non-page-aligned block"); - int munmap_result; -#ifdef _WIN32 - munmap_result = VirtualFree(region, 0, MEM_RELEASE); - ABSL_RAW_CHECK(munmap_result != 0, - "LowLevelAlloc::DeleteArena: VitualFree failed"); -#else -#ifndef ABSL_LOW_LEVEL_ALLOC_ASYNC_SIGNAL_SAFE_MISSING - if ((arena->flags & LowLevelAlloc::kAsyncSignalSafe) == 0) { - munmap_result = munmap(region, size); - } else { - munmap_result = base_internal::DirectMunmap(region, size); - } -#else - munmap_result = munmap(region, size); -#endif // ABSL_LOW_LEVEL_ALLOC_ASYNC_SIGNAL_SAFE_MISSING - if (munmap_result != 0) { - ABSL_RAW_LOG(FATAL, "LowLevelAlloc::DeleteArena: munmap failed: %d", - errno); - } -#endif // _WIN32 - } - section.Leave(); - arena->~Arena(); - Free(arena); - return true; -} - -// --------------------------------------------------------------------------- - -// Addition, checking for overflow. The intent is to die if an external client -// manages to push through a request that would cause arithmetic to fail. -static inline uintptr_t CheckedAdd(uintptr_t a, uintptr_t b) { - uintptr_t sum = a + b; - ABSL_RAW_CHECK(sum >= a, "LowLevelAlloc arithmetic overflow"); - return sum; -} - -// Return value rounded up to next multiple of align. -// align must be a power of two. -static inline uintptr_t RoundUp(uintptr_t addr, uintptr_t align) { - return CheckedAdd(addr, align - 1) & ~(align - 1); -} - -// Equivalent to "return prev->next[i]" but with sanity checking -// that the freelist is in the correct order, that it -// consists of regions marked "unallocated", and that no two regions -// are adjacent in memory (they should have been coalesced). -// L >= arena->mu -static AllocList *Next(int i, AllocList *prev, LowLevelAlloc::Arena *arena) { - ABSL_RAW_CHECK(i < prev->levels, "too few levels in Next()"); - AllocList *next = prev->next[i]; - if (next != nullptr) { - ABSL_RAW_CHECK( - next->header.magic == Magic(kMagicUnallocated, &next->header), - "bad magic number in Next()"); - ABSL_RAW_CHECK(next->header.arena == arena, "bad arena pointer in Next()"); - if (prev != &arena->freelist) { - ABSL_RAW_CHECK(prev < next, "unordered freelist"); - ABSL_RAW_CHECK(reinterpret_cast(prev) + prev->header.size < - reinterpret_cast(next), - "malformed freelist"); - } - } - return next; -} - -// Coalesce list item "a" with its successor if they are adjacent. -static void Coalesce(AllocList *a) { - AllocList *n = a->next[0]; - if (n != nullptr && reinterpret_cast(a) + a->header.size == - reinterpret_cast(n)) { - LowLevelAlloc::Arena *arena = a->header.arena; - a->header.size += n->header.size; - n->header.magic = 0; - n->header.arena = nullptr; - AllocList *prev[kMaxLevel]; - LLA_SkiplistDelete(&arena->freelist, n, prev); - LLA_SkiplistDelete(&arena->freelist, a, prev); - a->levels = LLA_SkiplistLevels(a->header.size, arena->min_size, - &arena->random); - LLA_SkiplistInsert(&arena->freelist, a, prev); - } -} - -// Adds block at location "v" to the free list -// L >= arena->mu -static void AddToFreelist(void *v, LowLevelAlloc::Arena *arena) { - AllocList *f = reinterpret_cast( - reinterpret_cast(v) - sizeof (f->header)); - ABSL_RAW_CHECK(f->header.magic == Magic(kMagicAllocated, &f->header), - "bad magic number in AddToFreelist()"); - ABSL_RAW_CHECK(f->header.arena == arena, - "bad arena pointer in AddToFreelist()"); - f->levels = LLA_SkiplistLevels(f->header.size, arena->min_size, - &arena->random); - AllocList *prev[kMaxLevel]; - LLA_SkiplistInsert(&arena->freelist, f, prev); - f->header.magic = Magic(kMagicUnallocated, &f->header); - Coalesce(f); // maybe coalesce with successor - Coalesce(prev[0]); // maybe coalesce with predecessor -} - -// Frees storage allocated by LowLevelAlloc::Alloc(). -// L < arena->mu -void LowLevelAlloc::Free(void *v) { - if (v != nullptr) { - AllocList *f = reinterpret_cast( - reinterpret_cast(v) - sizeof (f->header)); - LowLevelAlloc::Arena *arena = f->header.arena; - ArenaLock section(arena); - AddToFreelist(v, arena); - ABSL_RAW_CHECK(arena->allocation_count > 0, "nothing in arena to free"); - arena->allocation_count--; - section.Leave(); - } -} - -// allocates and returns a block of size bytes, to be freed with Free() -// L < arena->mu -static void *DoAllocWithArena(size_t request, LowLevelAlloc::Arena *arena) { - void *result = nullptr; - if (request != 0) { - AllocList *s; // will point to region that satisfies request - ArenaLock section(arena); - // round up with header - size_t req_rnd = RoundUp(CheckedAdd(request, sizeof (s->header)), - arena->round_up); - for (;;) { // loop until we find a suitable region - // find the minimum levels that a block of this size must have - int i = LLA_SkiplistLevels(req_rnd, arena->min_size, nullptr) - 1; - if (i < arena->freelist.levels) { // potential blocks exist - AllocList *before = &arena->freelist; // predecessor of s - while ((s = Next(i, before, arena)) != nullptr && - s->header.size < req_rnd) { - before = s; - } - if (s != nullptr) { // we found a region - break; - } - } - // we unlock before mmap() both because mmap() may call a callback hook, - // and because it may be slow. - arena->mu.Unlock(); - // mmap generous 64K chunks to decrease - // the chances/impact of fragmentation: - size_t new_pages_size = RoundUp(req_rnd, arena->pagesize * 16); - void *new_pages; -#ifdef _WIN32 - new_pages = VirtualAlloc(0, new_pages_size, - MEM_RESERVE | MEM_COMMIT, PAGE_READWRITE); - ABSL_RAW_CHECK(new_pages != nullptr, "VirtualAlloc failed"); -#else -#ifndef ABSL_LOW_LEVEL_ALLOC_ASYNC_SIGNAL_SAFE_MISSING - if ((arena->flags & LowLevelAlloc::kAsyncSignalSafe) != 0) { - new_pages = base_internal::DirectMmap(nullptr, new_pages_size, - PROT_WRITE|PROT_READ, MAP_ANONYMOUS|MAP_PRIVATE, -1, 0); - } else { - new_pages = mmap(nullptr, new_pages_size, PROT_WRITE | PROT_READ, - MAP_ANONYMOUS | MAP_PRIVATE, -1, 0); - } -#else - new_pages = mmap(nullptr, new_pages_size, PROT_WRITE | PROT_READ, - MAP_ANONYMOUS | MAP_PRIVATE, -1, 0); -#endif // ABSL_LOW_LEVEL_ALLOC_ASYNC_SIGNAL_SAFE_MISSING - if (new_pages == MAP_FAILED) { - ABSL_RAW_LOG(FATAL, "mmap error: %d", errno); - } - -#endif // _WIN32 - arena->mu.Lock(); - s = reinterpret_cast(new_pages); - s->header.size = new_pages_size; - // Pretend the block is allocated; call AddToFreelist() to free it. - s->header.magic = Magic(kMagicAllocated, &s->header); - s->header.arena = arena; - AddToFreelist(&s->levels, arena); // insert new region into free list - } - AllocList *prev[kMaxLevel]; - LLA_SkiplistDelete(&arena->freelist, s, prev); // remove from free list - // s points to the first free region that's big enough - if (CheckedAdd(req_rnd, arena->min_size) <= s->header.size) { - // big enough to split - AllocList *n = reinterpret_cast - (req_rnd + reinterpret_cast(s)); - n->header.size = s->header.size - req_rnd; - n->header.magic = Magic(kMagicAllocated, &n->header); - n->header.arena = arena; - s->header.size = req_rnd; - AddToFreelist(&n->levels, arena); - } - s->header.magic = Magic(kMagicAllocated, &s->header); - ABSL_RAW_CHECK(s->header.arena == arena, ""); - arena->allocation_count++; - section.Leave(); - result = &s->levels; - } - ABSL_ANNOTATE_MEMORY_IS_UNINITIALIZED(result, request); - return result; -} - -void *LowLevelAlloc::Alloc(size_t request) { - void *result = DoAllocWithArena(request, DefaultArena()); - return result; -} - -void *LowLevelAlloc::AllocWithArena(size_t request, Arena *arena) { - ABSL_RAW_CHECK(arena != nullptr, "must pass a valid arena"); - void *result = DoAllocWithArena(request, arena); - return result; -} - -} // namespace base_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_LOW_LEVEL_ALLOC_MISSING diff --git a/src/third_party/abseil-cpp/absl/base/internal/low_level_alloc.h b/src/third_party/abseil-cpp/absl/base/internal/low_level_alloc.h deleted file mode 100644 index eabb14a9b4..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/low_level_alloc.h +++ /dev/null @@ -1,126 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// - -#ifndef ABSL_BASE_INTERNAL_LOW_LEVEL_ALLOC_H_ -#define ABSL_BASE_INTERNAL_LOW_LEVEL_ALLOC_H_ - -// A simple thread-safe memory allocator that does not depend on -// mutexes or thread-specific data. It is intended to be used -// sparingly, and only when malloc() would introduce an unwanted -// dependency, such as inside the heap-checker, or the Mutex -// implementation. - -// IWYU pragma: private, include "base/low_level_alloc.h" - -#include - -#include - -#include "absl/base/attributes.h" -#include "absl/base/config.h" - -// LowLevelAlloc requires that the platform support low-level -// allocation of virtual memory. Platforms lacking this cannot use -// LowLevelAlloc. -#ifdef ABSL_LOW_LEVEL_ALLOC_MISSING -#error ABSL_LOW_LEVEL_ALLOC_MISSING cannot be directly set -#elif !defined(ABSL_HAVE_MMAP) && !defined(_WIN32) -#define ABSL_LOW_LEVEL_ALLOC_MISSING 1 -#endif - -// Using LowLevelAlloc with kAsyncSignalSafe isn't supported on Windows or -// asm.js / WebAssembly. -// See https://kripken.github.io/emscripten-site/docs/porting/pthreads.html -// for more information. -#ifdef ABSL_LOW_LEVEL_ALLOC_ASYNC_SIGNAL_SAFE_MISSING -#error ABSL_LOW_LEVEL_ALLOC_ASYNC_SIGNAL_SAFE_MISSING cannot be directly set -#elif defined(_WIN32) || defined(__asmjs__) || defined(__wasm__) -#define ABSL_LOW_LEVEL_ALLOC_ASYNC_SIGNAL_SAFE_MISSING 1 -#endif - -#include - -#include "absl/base/port.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace base_internal { - -class LowLevelAlloc { - public: - struct Arena; // an arena from which memory may be allocated - - // Returns a pointer to a block of at least "request" bytes - // that have been newly allocated from the specific arena. - // for Alloc() call the DefaultArena() is used. - // Returns 0 if passed request==0. - // Does not return 0 under other circumstances; it crashes if memory - // is not available. - static void *Alloc(size_t request) ABSL_ATTRIBUTE_SECTION(malloc_hook); - static void *AllocWithArena(size_t request, Arena *arena) - ABSL_ATTRIBUTE_SECTION(malloc_hook); - - // Deallocates a region of memory that was previously allocated with - // Alloc(). Does nothing if passed 0. "s" must be either 0, - // or must have been returned from a call to Alloc() and not yet passed to - // Free() since that call to Alloc(). The space is returned to the arena - // from which it was allocated. - static void Free(void *s) ABSL_ATTRIBUTE_SECTION(malloc_hook); - - // ABSL_ATTRIBUTE_SECTION(malloc_hook) for Alloc* and Free - // are to put all callers of MallocHook::Invoke* in this module - // into special section, - // so that MallocHook::GetCallerStackTrace can function accurately. - - // Create a new arena. - // The root metadata for the new arena is allocated in the - // meta_data_arena; the DefaultArena() can be passed for meta_data_arena. - // These values may be ored into flags: - enum { - // Report calls to Alloc() and Free() via the MallocHook interface. - // Set in the DefaultArena. - kCallMallocHook = 0x0001, - -#ifndef ABSL_LOW_LEVEL_ALLOC_ASYNC_SIGNAL_SAFE_MISSING - // Make calls to Alloc(), Free() be async-signal-safe. Not set in - // DefaultArena(). Not supported on all platforms. - kAsyncSignalSafe = 0x0002, -#endif - }; - // Construct a new arena. The allocation of the underlying metadata honors - // the provided flags. For example, the call NewArena(kAsyncSignalSafe) - // is itself async-signal-safe, as well as generatating an arena that provides - // async-signal-safe Alloc/Free. - static Arena *NewArena(uint32_t flags); - - // Destroys an arena allocated by NewArena and returns true, - // provided no allocated blocks remain in the arena. - // If allocated blocks remain in the arena, does nothing and - // returns false. - // It is illegal to attempt to destroy the DefaultArena(). - static bool DeleteArena(Arena *arena); - - // The default arena that always exists. - static Arena *DefaultArena(); - - private: - LowLevelAlloc(); // no instances -}; - -} // namespace base_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_BASE_INTERNAL_LOW_LEVEL_ALLOC_H_ diff --git a/src/third_party/abseil-cpp/absl/base/internal/low_level_alloc_test.cc b/src/third_party/abseil-cpp/absl/base/internal/low_level_alloc_test.cc deleted file mode 100644 index 8fdec09e88..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/low_level_alloc_test.cc +++ /dev/null @@ -1,180 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/base/internal/low_level_alloc.h" - -#include -#include -#include -#include // NOLINT(build/c++11) -#include -#include - -#ifdef __EMSCRIPTEN__ -#include -#endif - -#include "absl/container/node_hash_map.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace base_internal { -namespace { - -// This test doesn't use gtest since it needs to test that everything -// works before main(). -#define TEST_ASSERT(x) \ - if (!(x)) { \ - printf("TEST_ASSERT(%s) FAILED ON LINE %d\n", #x, __LINE__); \ - abort(); \ - } - -// a block of memory obtained from the allocator -struct BlockDesc { - char *ptr; // pointer to memory - int len; // number of bytes - int fill; // filled with data starting with this -}; - -// Check that the pattern placed in the block d -// by RandomizeBlockDesc is still there. -static void CheckBlockDesc(const BlockDesc &d) { - for (int i = 0; i != d.len; i++) { - TEST_ASSERT((d.ptr[i] & 0xff) == ((d.fill + i) & 0xff)); - } -} - -// Fill the block "*d" with a pattern -// starting with a random byte. -static void RandomizeBlockDesc(BlockDesc *d) { - d->fill = rand() & 0xff; - for (int i = 0; i != d->len; i++) { - d->ptr[i] = (d->fill + i) & 0xff; - } -} - -// Use to indicate to the malloc hooks that -// this calls is from LowLevelAlloc. -static bool using_low_level_alloc = false; - -// n times, toss a coin, and based on the outcome -// either allocate a new block or deallocate an old block. -// New blocks are placed in a std::unordered_map with a random key -// and initialized with RandomizeBlockDesc(). -// If keys conflict, the older block is freed. -// Old blocks are always checked with CheckBlockDesc() -// before being freed. At the end of the run, -// all remaining allocated blocks are freed. -// If use_new_arena is true, use a fresh arena, and then delete it. -// If call_malloc_hook is true and user_arena is true, -// allocations and deallocations are reported via the MallocHook -// interface. -static void Test(bool use_new_arena, bool call_malloc_hook, int n) { - typedef absl::node_hash_map AllocMap; - AllocMap allocated; - AllocMap::iterator it; - BlockDesc block_desc; - int rnd; - LowLevelAlloc::Arena *arena = nullptr; - if (use_new_arena) { - int32_t flags = call_malloc_hook ? LowLevelAlloc::kCallMallocHook : 0; - arena = LowLevelAlloc::NewArena(flags); - } - for (int i = 0; i != n; i++) { - if (i != 0 && i % 10000 == 0) { - printf("."); - fflush(stdout); - } - - switch (rand() & 1) { // toss a coin - case 0: // coin came up heads: add a block - using_low_level_alloc = true; - block_desc.len = rand() & 0x3fff; - block_desc.ptr = reinterpret_cast( - arena == nullptr - ? LowLevelAlloc::Alloc(block_desc.len) - : LowLevelAlloc::AllocWithArena(block_desc.len, arena)); - using_low_level_alloc = false; - RandomizeBlockDesc(&block_desc); - rnd = rand(); - it = allocated.find(rnd); - if (it != allocated.end()) { - CheckBlockDesc(it->second); - using_low_level_alloc = true; - LowLevelAlloc::Free(it->second.ptr); - using_low_level_alloc = false; - it->second = block_desc; - } else { - allocated[rnd] = block_desc; - } - break; - case 1: // coin came up tails: remove a block - it = allocated.begin(); - if (it != allocated.end()) { - CheckBlockDesc(it->second); - using_low_level_alloc = true; - LowLevelAlloc::Free(it->second.ptr); - using_low_level_alloc = false; - allocated.erase(it); - } - break; - } - } - // remove all remaining blocks - while ((it = allocated.begin()) != allocated.end()) { - CheckBlockDesc(it->second); - using_low_level_alloc = true; - LowLevelAlloc::Free(it->second.ptr); - using_low_level_alloc = false; - allocated.erase(it); - } - if (use_new_arena) { - TEST_ASSERT(LowLevelAlloc::DeleteArena(arena)); - } -} - -// LowLevelAlloc is designed to be safe to call before main(). -static struct BeforeMain { - BeforeMain() { - Test(false, false, 50000); - Test(true, false, 50000); - Test(true, true, 50000); - } -} before_main; - -} // namespace -} // namespace base_internal -ABSL_NAMESPACE_END -} // namespace absl - -int main(int argc, char *argv[]) { - // The actual test runs in the global constructor of `before_main`. - printf("PASS\n"); -#ifdef __EMSCRIPTEN__ - // clang-format off -// This is JS here. Don't try to format it. - MAIN_THREAD_EM_ASM({ - if (ENVIRONMENT_IS_WEB) { - if (typeof TEST_FINISH === 'function') { - TEST_FINISH($0); - } else { - console.error('Attempted to exit with status ' + $0); - console.error('But TEST_FINSIHED is not a function.'); - } - } - }, 0); -// clang-format on -#endif - return 0; -} diff --git a/src/third_party/abseil-cpp/absl/base/internal/low_level_scheduling.h b/src/third_party/abseil-cpp/absl/base/internal/low_level_scheduling.h deleted file mode 100644 index 9baccc0659..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/low_level_scheduling.h +++ /dev/null @@ -1,134 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// Core interfaces and definitions used by by low-level interfaces such as -// SpinLock. - -#ifndef ABSL_BASE_INTERNAL_LOW_LEVEL_SCHEDULING_H_ -#define ABSL_BASE_INTERNAL_LOW_LEVEL_SCHEDULING_H_ - -#include "absl/base/internal/raw_logging.h" -#include "absl/base/internal/scheduling_mode.h" -#include "absl/base/macros.h" - -// The following two declarations exist so SchedulingGuard may friend them with -// the appropriate language linkage. These callbacks allow libc internals, such -// as function level statics, to schedule cooperatively when locking. -extern "C" bool __google_disable_rescheduling(void); -extern "C" void __google_enable_rescheduling(bool disable_result); - -namespace absl { -ABSL_NAMESPACE_BEGIN -class CondVar; -class Mutex; - -namespace synchronization_internal { -int MutexDelay(int32_t c, int mode); -} // namespace synchronization_internal - -namespace base_internal { - -class SchedulingHelper; // To allow use of SchedulingGuard. -class SpinLock; // To allow use of SchedulingGuard. - -// SchedulingGuard -// Provides guard semantics that may be used to disable cooperative rescheduling -// of the calling thread within specific program blocks. This is used to -// protect resources (e.g. low-level SpinLocks or Domain code) that cooperative -// scheduling depends on. -// -// Domain implementations capable of rescheduling in reaction to involuntary -// kernel thread actions (e.g blocking due to a pagefault or syscall) must -// guarantee that an annotated thread is not allowed to (cooperatively) -// reschedule until the annotated region is complete. -// -// It is an error to attempt to use a cooperatively scheduled resource (e.g. -// Mutex) within a rescheduling-disabled region. -// -// All methods are async-signal safe. -class SchedulingGuard { - public: - // Returns true iff the calling thread may be cooperatively rescheduled. - static bool ReschedulingIsAllowed(); - SchedulingGuard(const SchedulingGuard&) = delete; - SchedulingGuard& operator=(const SchedulingGuard&) = delete; - - private: - // Disable cooperative rescheduling of the calling thread. It may still - // initiate scheduling operations (e.g. wake-ups), however, it may not itself - // reschedule. Nestable. The returned result is opaque, clients should not - // attempt to interpret it. - // REQUIRES: Result must be passed to a pairing EnableScheduling(). - static bool DisableRescheduling(); - - // Marks the end of a rescheduling disabled region, previously started by - // DisableRescheduling(). - // REQUIRES: Pairs with innermost call (and result) of DisableRescheduling(). - static void EnableRescheduling(bool disable_result); - - // A scoped helper for {Disable, Enable}Rescheduling(). - // REQUIRES: destructor must run in same thread as constructor. - struct ScopedDisable { - ScopedDisable() { disabled = SchedulingGuard::DisableRescheduling(); } - ~ScopedDisable() { SchedulingGuard::EnableRescheduling(disabled); } - - bool disabled; - }; - - // A scoped helper to enable rescheduling temporarily. - // REQUIRES: destructor must run in same thread as constructor. - class ScopedEnable { - public: - ScopedEnable(); - ~ScopedEnable(); - - private: - int scheduling_disabled_depth_; - }; - - // Access to SchedulingGuard is explicitly permitted. - friend class absl::CondVar; - friend class absl::Mutex; - friend class SchedulingHelper; - friend class SpinLock; - friend int absl::synchronization_internal::MutexDelay(int32_t c, int mode); -}; - -//------------------------------------------------------------------------------ -// End of public interfaces. -//------------------------------------------------------------------------------ - -inline bool SchedulingGuard::ReschedulingIsAllowed() { - return false; -} - -inline bool SchedulingGuard::DisableRescheduling() { - return false; -} - -inline void SchedulingGuard::EnableRescheduling(bool /* disable_result */) { - return; -} - -inline SchedulingGuard::ScopedEnable::ScopedEnable() - : scheduling_disabled_depth_(0) {} -inline SchedulingGuard::ScopedEnable::~ScopedEnable() { - ABSL_RAW_CHECK(scheduling_disabled_depth_ == 0, "disable unused warning"); -} - -} // namespace base_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_BASE_INTERNAL_LOW_LEVEL_SCHEDULING_H_ diff --git a/src/third_party/abseil-cpp/absl/base/internal/per_thread_tls.h b/src/third_party/abseil-cpp/absl/base/internal/per_thread_tls.h deleted file mode 100644 index cf5e97a047..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/per_thread_tls.h +++ /dev/null @@ -1,52 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#ifndef ABSL_BASE_INTERNAL_PER_THREAD_TLS_H_ -#define ABSL_BASE_INTERNAL_PER_THREAD_TLS_H_ - -// This header defines two macros: -// -// If the platform supports thread-local storage: -// -// * ABSL_PER_THREAD_TLS_KEYWORD is the C keyword needed to declare a -// thread-local variable -// * ABSL_PER_THREAD_TLS is 1 -// -// Otherwise: -// -// * ABSL_PER_THREAD_TLS_KEYWORD is empty -// * ABSL_PER_THREAD_TLS is 0 -// -// Microsoft C supports thread-local storage. -// GCC supports it if the appropriate version of glibc is available, -// which the programmer can indicate by defining ABSL_HAVE_TLS - -#include "absl/base/port.h" // For ABSL_HAVE_TLS - -#if defined(ABSL_PER_THREAD_TLS) -#error ABSL_PER_THREAD_TLS cannot be directly set -#elif defined(ABSL_PER_THREAD_TLS_KEYWORD) -#error ABSL_PER_THREAD_TLS_KEYWORD cannot be directly set -#elif defined(ABSL_HAVE_TLS) -#define ABSL_PER_THREAD_TLS_KEYWORD __thread -#define ABSL_PER_THREAD_TLS 1 -#elif defined(_MSC_VER) -#define ABSL_PER_THREAD_TLS_KEYWORD __declspec(thread) -#define ABSL_PER_THREAD_TLS 1 -#else -#define ABSL_PER_THREAD_TLS_KEYWORD -#define ABSL_PER_THREAD_TLS 0 -#endif - -#endif // ABSL_BASE_INTERNAL_PER_THREAD_TLS_H_ diff --git a/src/third_party/abseil-cpp/absl/base/internal/prefetch.h b/src/third_party/abseil-cpp/absl/base/internal/prefetch.h deleted file mode 100644 index 06419283ba..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/prefetch.h +++ /dev/null @@ -1,138 +0,0 @@ -// Copyright 2022 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#ifndef ABSL_BASE_INTERNAL_PREFETCH_H_ -#define ABSL_BASE_INTERNAL_PREFETCH_H_ - -#include "absl/base/config.h" - -#ifdef __SSE__ -#include -#endif - -#if defined(_MSC_VER) && defined(ABSL_INTERNAL_HAVE_SSE) -#include -#pragma intrinsic(_mm_prefetch) -#endif - -// Compatibility wrappers around __builtin_prefetch, to prefetch data -// for read if supported by the toolchain. - -// Move data into the cache before it is read, or "prefetch" it. -// -// The value of `addr` is the address of the memory to prefetch. If -// the target and compiler support it, data prefetch instructions are -// generated. If the prefetch is done some time before the memory is -// read, it may be in the cache by the time the read occurs. -// -// The function names specify the temporal locality heuristic applied, -// using the names of Intel prefetch instructions: -// -// T0 - high degree of temporal locality; data should be left in as -// many levels of the cache possible -// T1 - moderate degree of temporal locality -// T2 - low degree of temporal locality -// Nta - no temporal locality, data need not be left in the cache -// after the read -// -// Incorrect or gratuitous use of these functions can degrade -// performance, so use them only when representative benchmarks show -// an improvement. -// -// Example usage: -// -// absl::base_internal::PrefetchT0(addr); -// -// Currently, the different prefetch calls behave on some Intel -// architectures as follows: -// -// SNB..SKL SKX -// PrefetchT0() L1/L2/L3 L1/L2 -// PrefetchT1() L2/L3 L2 -// PrefetchT2() L2/L3 L2 -// PrefetchNta() L1/--/L3 L1* -// -// * On SKX PrefetchNta() will bring the line into L1 but will evict -// from L3 cache. This might result in surprising behavior. -// -// SNB = Sandy Bridge, SKL = Skylake, SKX = Skylake Xeon. -// -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace base_internal { - -void PrefetchT0(const void* addr); -void PrefetchT1(const void* addr); -void PrefetchT2(const void* addr); -void PrefetchNta(const void* addr); - -// Implementation details follow. - -#if ABSL_HAVE_BUILTIN(__builtin_prefetch) || defined(__GNUC__) - -#define ABSL_INTERNAL_HAVE_PREFETCH 1 - -// See __builtin_prefetch: -// https://gcc.gnu.org/onlinedocs/gcc/Other-Builtins.html. -// -// These functions speculatively load for read only. This is -// safe for all currently supported platforms. However, prefetch for -// store may have problems depending on the target platform. -// -inline void PrefetchT0(const void* addr) { - // Note: this uses prefetcht0 on Intel. - __builtin_prefetch(addr, 0, 3); -} -inline void PrefetchT1(const void* addr) { - // Note: this uses prefetcht1 on Intel. - __builtin_prefetch(addr, 0, 2); -} -inline void PrefetchT2(const void* addr) { - // Note: this uses prefetcht2 on Intel. - __builtin_prefetch(addr, 0, 1); -} -inline void PrefetchNta(const void* addr) { - // Note: this uses prefetchtnta on Intel. - __builtin_prefetch(addr, 0, 0); -} - -#elif defined(ABSL_INTERNAL_HAVE_SSE) - -#define ABSL_INTERNAL_HAVE_PREFETCH 1 - -inline void PrefetchT0(const void* addr) { - _mm_prefetch(reinterpret_cast(addr), _MM_HINT_T0); -} -inline void PrefetchT1(const void* addr) { - _mm_prefetch(reinterpret_cast(addr), _MM_HINT_T1); -} -inline void PrefetchT2(const void* addr) { - _mm_prefetch(reinterpret_cast(addr), _MM_HINT_T2); -} -inline void PrefetchNta(const void* addr) { - _mm_prefetch(reinterpret_cast(addr), _MM_HINT_NTA); -} - -#else -inline void PrefetchT0(const void*) {} -inline void PrefetchT1(const void*) {} -inline void PrefetchT2(const void*) {} -inline void PrefetchNta(const void*) {} -#endif - -} // namespace base_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_BASE_INTERNAL_PREFETCH_H_ diff --git a/src/third_party/abseil-cpp/absl/base/internal/prefetch_test.cc b/src/third_party/abseil-cpp/absl/base/internal/prefetch_test.cc deleted file mode 100644 index 7c1dae462c..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/prefetch_test.cc +++ /dev/null @@ -1,43 +0,0 @@ -// Copyright 2022 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/base/internal/prefetch.h" - -#include "gtest/gtest.h" - -namespace { - -int number = 42; - -TEST(Prefetch, TemporalLocalityNone) { - absl::base_internal::PrefetchNta(&number); - EXPECT_EQ(number, 42); -} - -TEST(Prefetch, TemporalLocalityLow) { - absl::base_internal::PrefetchT2(&number); - EXPECT_EQ(number, 42); -} - -TEST(Prefetch, TemporalLocalityMedium) { - absl::base_internal::PrefetchT1(&number); - EXPECT_EQ(number, 42); -} - -TEST(Prefetch, TemporalLocalityHigh) { - absl::base_internal::PrefetchT0(&number); - EXPECT_EQ(number, 42); -} - -} // namespace diff --git a/src/third_party/abseil-cpp/absl/base/internal/pretty_function.h b/src/third_party/abseil-cpp/absl/base/internal/pretty_function.h deleted file mode 100644 index 35d51676dc..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/pretty_function.h +++ /dev/null @@ -1,33 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#ifndef ABSL_BASE_INTERNAL_PRETTY_FUNCTION_H_ -#define ABSL_BASE_INTERNAL_PRETTY_FUNCTION_H_ - -// ABSL_PRETTY_FUNCTION -// -// In C++11, __func__ gives the undecorated name of the current function. That -// is, "main", not "int main()". Various compilers give extra macros to get the -// decorated function name, including return type and arguments, to -// differentiate between overload sets. ABSL_PRETTY_FUNCTION is a portable -// version of these macros which forwards to the correct macro on each compiler. -#if defined(_MSC_VER) -#define ABSL_PRETTY_FUNCTION __FUNCSIG__ -#elif defined(__GNUC__) -#define ABSL_PRETTY_FUNCTION __PRETTY_FUNCTION__ -#else -#error "Unsupported compiler" -#endif - -#endif // ABSL_BASE_INTERNAL_PRETTY_FUNCTION_H_ diff --git a/src/third_party/abseil-cpp/absl/base/internal/raw_logging.cc b/src/third_party/abseil-cpp/absl/base/internal/raw_logging.cc deleted file mode 100644 index 6273e8471b..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/raw_logging.cc +++ /dev/null @@ -1,253 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/base/internal/raw_logging.h" - -#include -#include -#include -#include -#include -#include - -#include "absl/base/attributes.h" -#include "absl/base/config.h" -#include "absl/base/internal/atomic_hook.h" -#include "absl/base/internal/errno_saver.h" -#include "absl/base/log_severity.h" - -// We know how to perform low-level writes to stderr in POSIX and Windows. For -// these platforms, we define the token ABSL_LOW_LEVEL_WRITE_SUPPORTED. -// Much of raw_logging.cc becomes a no-op when we can't output messages, -// although a FATAL ABSL_RAW_LOG message will still abort the process. - -// ABSL_HAVE_POSIX_WRITE is defined when the platform provides posix write() -// (as from unistd.h) -// -// This preprocessor token is also defined in raw_io.cc. If you need to copy -// this, consider moving both to config.h instead. -#if defined(__linux__) || defined(__APPLE__) || defined(__FreeBSD__) || \ - defined(__Fuchsia__) || defined(__native_client__) || \ - defined(__OpenBSD__) || defined(__EMSCRIPTEN__) || defined(__ASYLO__) - -#include - -#define ABSL_HAVE_POSIX_WRITE 1 -#define ABSL_LOW_LEVEL_WRITE_SUPPORTED 1 -#else -#undef ABSL_HAVE_POSIX_WRITE -#endif - -// ABSL_HAVE_SYSCALL_WRITE is defined when the platform provides the syscall -// syscall(SYS_write, /*int*/ fd, /*char* */ buf, /*size_t*/ len); -// for low level operations that want to avoid libc. -#if (defined(__linux__) || defined(__FreeBSD__) || defined(__OpenBSD__)) && \ - !defined(__ANDROID__) -#include -#define ABSL_HAVE_SYSCALL_WRITE 1 -#define ABSL_LOW_LEVEL_WRITE_SUPPORTED 1 -#else -#undef ABSL_HAVE_SYSCALL_WRITE -#endif - -#ifdef _WIN32 -#include - -#define ABSL_HAVE_RAW_IO 1 -#define ABSL_LOW_LEVEL_WRITE_SUPPORTED 1 -#else -#undef ABSL_HAVE_RAW_IO -#endif - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace raw_log_internal { -namespace { - -// TODO(gfalcon): We want raw-logging to work on as many platforms as possible. -// Explicitly `#error` out when not `ABSL_LOW_LEVEL_WRITE_SUPPORTED`, except for -// a selected set of platforms for which we expect not to be able to raw log. - -#ifdef ABSL_LOW_LEVEL_WRITE_SUPPORTED -constexpr char kTruncated[] = " ... (message truncated)\n"; - -// sprintf the format to the buffer, adjusting *buf and *size to reflect the -// consumed bytes, and return whether the message fit without truncation. If -// truncation occurred, if possible leave room in the buffer for the message -// kTruncated[]. -bool VADoRawLog(char** buf, int* size, const char* format, va_list ap) - ABSL_PRINTF_ATTRIBUTE(3, 0); -bool VADoRawLog(char** buf, int* size, const char* format, va_list ap) { - if (*size < 0) - return false; - int n = vsnprintf(*buf, static_cast(*size), format, ap); - bool result = true; - if (n < 0 || n > *size) { - result = false; - if (static_cast(*size) > sizeof(kTruncated)) { - n = *size - static_cast(sizeof(kTruncated)); - } else { - n = 0; // no room for truncation message - } - } - *size -= n; - *buf += n; - return result; -} -#endif // ABSL_LOW_LEVEL_WRITE_SUPPORTED - -constexpr int kLogBufSize = 3000; - -// CAVEAT: vsnprintf called from *DoRawLog below has some (exotic) code paths -// that invoke malloc() and getenv() that might acquire some locks. - -// Helper for RawLog below. -// *DoRawLog writes to *buf of *size and move them past the written portion. -// It returns true iff there was no overflow or error. -bool DoRawLog(char** buf, int* size, const char* format, ...) - ABSL_PRINTF_ATTRIBUTE(3, 4); -bool DoRawLog(char** buf, int* size, const char* format, ...) { - if (*size < 0) - return false; - va_list ap; - va_start(ap, format); - int n = vsnprintf(*buf, static_cast(*size), format, ap); - va_end(ap); - if (n < 0 || n > *size) return false; - *size -= n; - *buf += n; - return true; -} - -bool DefaultLogFilterAndPrefix(absl::LogSeverity, const char* file, int line, - char** buf, int* buf_size) { - DoRawLog(buf, buf_size, "[%s : %d] RAW: ", file, line); - return true; -} - -ABSL_INTERNAL_ATOMIC_HOOK_ATTRIBUTES -absl::base_internal::AtomicHook - log_filter_and_prefix_hook(DefaultLogFilterAndPrefix); -ABSL_INTERNAL_ATOMIC_HOOK_ATTRIBUTES -absl::base_internal::AtomicHook abort_hook; - -void RawLogVA(absl::LogSeverity severity, const char* file, int line, - const char* format, va_list ap) ABSL_PRINTF_ATTRIBUTE(4, 0); -void RawLogVA(absl::LogSeverity severity, const char* file, int line, - const char* format, va_list ap) { - char buffer[kLogBufSize]; - char* buf = buffer; - int size = sizeof(buffer); -#ifdef ABSL_LOW_LEVEL_WRITE_SUPPORTED - bool enabled = true; -#else - bool enabled = false; -#endif - -#ifdef ABSL_MIN_LOG_LEVEL - if (severity < static_cast(ABSL_MIN_LOG_LEVEL) && - severity < absl::LogSeverity::kFatal) { - enabled = false; - } -#endif - - enabled = log_filter_and_prefix_hook(severity, file, line, &buf, &size); - const char* const prefix_end = buf; - -#ifdef ABSL_LOW_LEVEL_WRITE_SUPPORTED - if (enabled) { - bool no_chop = VADoRawLog(&buf, &size, format, ap); - if (no_chop) { - DoRawLog(&buf, &size, "\n"); - } else { - DoRawLog(&buf, &size, "%s", kTruncated); - } - AsyncSignalSafeWriteToStderr(buffer, strlen(buffer)); - } -#else - static_cast(format); - static_cast(ap); - static_cast(enabled); -#endif - - // Abort the process after logging a FATAL message, even if the output itself - // was suppressed. - if (severity == absl::LogSeverity::kFatal) { - abort_hook(file, line, buffer, prefix_end, buffer + kLogBufSize); - abort(); - } -} - -// Non-formatting version of RawLog(). -// -// TODO(gfalcon): When string_view no longer depends on base, change this -// interface to take its message as a string_view instead. -void DefaultInternalLog(absl::LogSeverity severity, const char* file, int line, - const std::string& message) { - RawLog(severity, file, line, "%.*s", static_cast(message.size()), - message.data()); -} - -} // namespace - -void AsyncSignalSafeWriteToStderr(const char* s, size_t len) { - absl::base_internal::ErrnoSaver errno_saver; -#if defined(ABSL_HAVE_SYSCALL_WRITE) - // We prefer calling write via `syscall` to minimize the risk of libc doing - // something "helpful". - syscall(SYS_write, STDERR_FILENO, s, len); -#elif defined(ABSL_HAVE_POSIX_WRITE) - write(STDERR_FILENO, s, len); -#elif defined(ABSL_HAVE_RAW_IO) - _write(/* stderr */ 2, s, static_cast(len)); -#else - // stderr logging unsupported on this platform - (void) s; - (void) len; -#endif -} - -void RawLog(absl::LogSeverity severity, const char* file, int line, - const char* format, ...) { - va_list ap; - va_start(ap, format); - RawLogVA(severity, file, line, format, ap); - va_end(ap); -} - -bool RawLoggingFullySupported() { -#ifdef ABSL_LOW_LEVEL_WRITE_SUPPORTED - return true; -#else // !ABSL_LOW_LEVEL_WRITE_SUPPORTED - return false; -#endif // !ABSL_LOW_LEVEL_WRITE_SUPPORTED -} - -ABSL_INTERNAL_ATOMIC_HOOK_ATTRIBUTES ABSL_DLL - absl::base_internal::AtomicHook - internal_log_function(DefaultInternalLog); - -void RegisterLogFilterAndPrefixHook(LogFilterAndPrefixHook func) { - log_filter_and_prefix_hook.Store(func); -} - -void RegisterAbortHook(AbortHook func) { abort_hook.Store(func); } - -void RegisterInternalLogFunction(InternalLogFunction func) { - internal_log_function.Store(func); -} - -} // namespace raw_log_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/src/third_party/abseil-cpp/absl/base/internal/raw_logging.h b/src/third_party/abseil-cpp/absl/base/internal/raw_logging.h deleted file mode 100644 index c7b889cd8a..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/raw_logging.h +++ /dev/null @@ -1,195 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// Thread-safe logging routines that do not allocate any memory or -// acquire any locks, and can therefore be used by low-level memory -// allocation, synchronization, and signal-handling code. - -#ifndef ABSL_BASE_INTERNAL_RAW_LOGGING_H_ -#define ABSL_BASE_INTERNAL_RAW_LOGGING_H_ - -#include - -#include "absl/base/attributes.h" -#include "absl/base/config.h" -#include "absl/base/internal/atomic_hook.h" -#include "absl/base/log_severity.h" -#include "absl/base/macros.h" -#include "absl/base/optimization.h" -#include "absl/base/port.h" - -// This is similar to LOG(severity) << format..., but -// * it is to be used ONLY by low-level modules that can't use normal LOG() -// * it is designed to be a low-level logger that does not allocate any -// memory and does not need any locks, hence: -// * it logs straight and ONLY to STDERR w/o buffering -// * it uses an explicit printf-format and arguments list -// * it will silently chop off really long message strings -// Usage example: -// ABSL_RAW_LOG(ERROR, "Failed foo with %i: %s", status, error); -// This will print an almost standard log line like this to stderr only: -// E0821 211317 file.cc:123] RAW: Failed foo with 22: bad_file - -#define ABSL_RAW_LOG(severity, ...) \ - do { \ - constexpr const char* absl_raw_log_internal_basename = \ - ::absl::raw_log_internal::Basename(__FILE__, sizeof(__FILE__) - 1); \ - ::absl::raw_log_internal::RawLog(ABSL_RAW_LOG_INTERNAL_##severity, \ - absl_raw_log_internal_basename, __LINE__, \ - __VA_ARGS__); \ - } while (0) - -// Similar to CHECK(condition) << message, but for low-level modules: -// we use only ABSL_RAW_LOG that does not allocate memory. -// We do not want to provide args list here to encourage this usage: -// if (!cond) ABSL_RAW_LOG(FATAL, "foo ...", hard_to_compute_args); -// so that the args are not computed when not needed. -#define ABSL_RAW_CHECK(condition, message) \ - do { \ - if (ABSL_PREDICT_FALSE(!(condition))) { \ - ABSL_RAW_LOG(FATAL, "Check %s failed: %s", #condition, message); \ - } \ - } while (0) - -// ABSL_INTERNAL_LOG and ABSL_INTERNAL_CHECK work like the RAW variants above, -// except that if the richer log library is linked into the binary, we dispatch -// to that instead. This is potentially useful for internal logging and -// assertions, where we are using RAW_LOG neither for its async-signal-safety -// nor for its non-allocating nature, but rather because raw logging has very -// few other dependencies. -// -// The API is a subset of the above: each macro only takes two arguments. Use -// StrCat if you need to build a richer message. -#define ABSL_INTERNAL_LOG(severity, message) \ - do { \ - constexpr const char* absl_raw_log_internal_filename = __FILE__; \ - ::absl::raw_log_internal::internal_log_function( \ - ABSL_RAW_LOG_INTERNAL_##severity, absl_raw_log_internal_filename, \ - __LINE__, message); \ - if (ABSL_RAW_LOG_INTERNAL_##severity == ::absl::LogSeverity::kFatal) \ - ABSL_UNREACHABLE(); \ - } while (0) - -#define ABSL_INTERNAL_CHECK(condition, message) \ - do { \ - if (ABSL_PREDICT_FALSE(!(condition))) { \ - std::string death_message = "Check " #condition " failed: "; \ - death_message += std::string(message); \ - ABSL_INTERNAL_LOG(FATAL, death_message); \ - } \ - } while (0) - -#define ABSL_RAW_LOG_INTERNAL_INFO ::absl::LogSeverity::kInfo -#define ABSL_RAW_LOG_INTERNAL_WARNING ::absl::LogSeverity::kWarning -#define ABSL_RAW_LOG_INTERNAL_ERROR ::absl::LogSeverity::kError -#define ABSL_RAW_LOG_INTERNAL_FATAL ::absl::LogSeverity::kFatal -#define ABSL_RAW_LOG_INTERNAL_LEVEL(severity) \ - ::absl::NormalizeLogSeverity(severity) - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace raw_log_internal { - -// Helper function to implement ABSL_RAW_LOG -// Logs format... at "severity" level, reporting it -// as called from file:line. -// This does not allocate memory or acquire locks. -void RawLog(absl::LogSeverity severity, const char* file, int line, - const char* format, ...) ABSL_PRINTF_ATTRIBUTE(4, 5); - -// Writes the provided buffer directly to stderr, in a signal-safe, low-level -// manner. -void AsyncSignalSafeWriteToStderr(const char* s, size_t len); - -// compile-time function to get the "base" filename, that is, the part of -// a filename after the last "/" or "\" path separator. The search starts at -// the end of the string; the second parameter is the length of the string. -constexpr const char* Basename(const char* fname, int offset) { - return offset == 0 || fname[offset - 1] == '/' || fname[offset - 1] == '\\' - ? fname + offset - : Basename(fname, offset - 1); -} - -// For testing only. -// Returns true if raw logging is fully supported. When it is not -// fully supported, no messages will be emitted, but a log at FATAL -// severity will cause an abort. -// -// TODO(gfalcon): Come up with a better name for this method. -bool RawLoggingFullySupported(); - -// Function type for a raw_log customization hook for suppressing messages -// by severity, and for writing custom prefixes on non-suppressed messages. -// -// The installed hook is called for every raw log invocation. The message will -// be logged to stderr only if the hook returns true. FATAL errors will cause -// the process to abort, even if writing to stderr is suppressed. The hook is -// also provided with an output buffer, where it can write a custom log message -// prefix. -// -// The raw_log system does not allocate memory or grab locks. User-provided -// hooks must avoid these operations, and must not throw exceptions. -// -// 'severity' is the severity level of the message being written. -// 'file' and 'line' are the file and line number where the ABSL_RAW_LOG macro -// was located. -// 'buf' and 'buf_size' are pointers to the buffer and buffer size. If the -// hook writes a prefix, it must increment *buf and decrement *buf_size -// accordingly. -using LogFilterAndPrefixHook = bool (*)(absl::LogSeverity severity, - const char* file, int line, char** buf, - int* buf_size); - -// Function type for a raw_log customization hook called to abort a process -// when a FATAL message is logged. If the provided AbortHook() returns, the -// logging system will call abort(). -// -// 'file' and 'line' are the file and line number where the ABSL_RAW_LOG macro -// was located. -// The NUL-terminated logged message lives in the buffer between 'buf_start' -// and 'buf_end'. 'prefix_end' points to the first non-prefix character of the -// buffer (as written by the LogFilterAndPrefixHook.) -// -// The lifetime of the filename and message buffers will not end while the -// process remains alive. -using AbortHook = void (*)(const char* file, int line, const char* buf_start, - const char* prefix_end, const char* buf_end); - -// Internal logging function for ABSL_INTERNAL_LOG to dispatch to. -// -// TODO(gfalcon): When string_view no longer depends on base, change this -// interface to take its message as a string_view instead. -using InternalLogFunction = void (*)(absl::LogSeverity severity, - const char* file, int line, - const std::string& message); - -ABSL_INTERNAL_ATOMIC_HOOK_ATTRIBUTES ABSL_DLL extern base_internal::AtomicHook< - InternalLogFunction> - internal_log_function; - -// Registers hooks of the above types. Only a single hook of each type may be -// registered. It is an error to call these functions multiple times with -// different input arguments. -// -// These functions are safe to call at any point during initialization; they do -// not block or malloc, and are async-signal safe. -void RegisterLogFilterAndPrefixHook(LogFilterAndPrefixHook func); -void RegisterAbortHook(AbortHook func); -void RegisterInternalLogFunction(InternalLogFunction func); - -} // namespace raw_log_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_BASE_INTERNAL_RAW_LOGGING_H_ diff --git a/src/third_party/abseil-cpp/absl/base/internal/scheduling_mode.h b/src/third_party/abseil-cpp/absl/base/internal/scheduling_mode.h deleted file mode 100644 index 8be5ab6dd3..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/scheduling_mode.h +++ /dev/null @@ -1,58 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// Core interfaces and definitions used by by low-level interfaces such as -// SpinLock. - -#ifndef ABSL_BASE_INTERNAL_SCHEDULING_MODE_H_ -#define ABSL_BASE_INTERNAL_SCHEDULING_MODE_H_ - -#include "absl/base/config.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace base_internal { - -// Used to describe how a thread may be scheduled. Typically associated with -// the declaration of a resource supporting synchronized access. -// -// SCHEDULE_COOPERATIVE_AND_KERNEL: -// Specifies that when waiting, a cooperative thread (e.g. a Fiber) may -// reschedule (using base::scheduling semantics); allowing other cooperative -// threads to proceed. -// -// SCHEDULE_KERNEL_ONLY: (Also described as "non-cooperative") -// Specifies that no cooperative scheduling semantics may be used, even if the -// current thread is itself cooperatively scheduled. This means that -// cooperative threads will NOT allow other cooperative threads to execute in -// their place while waiting for a resource of this type. Host operating system -// semantics (e.g. a futex) may still be used. -// -// When optional, clients should strongly prefer SCHEDULE_COOPERATIVE_AND_KERNEL -// by default. SCHEDULE_KERNEL_ONLY should only be used for resources on which -// base::scheduling (e.g. the implementation of a Scheduler) may depend. -// -// NOTE: Cooperative resources may not be nested below non-cooperative ones. -// This means that it is invalid to to acquire a SCHEDULE_COOPERATIVE_AND_KERNEL -// resource if a SCHEDULE_KERNEL_ONLY resource is already held. -enum SchedulingMode { - SCHEDULE_KERNEL_ONLY = 0, // Allow scheduling only the host OS. - SCHEDULE_COOPERATIVE_AND_KERNEL, // Also allow cooperative scheduling. -}; - -} // namespace base_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_BASE_INTERNAL_SCHEDULING_MODE_H_ diff --git a/src/third_party/abseil-cpp/absl/base/internal/scoped_set_env.cc b/src/third_party/abseil-cpp/absl/base/internal/scoped_set_env.cc deleted file mode 100644 index 8a934cb511..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/scoped_set_env.cc +++ /dev/null @@ -1,81 +0,0 @@ -// Copyright 2019 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/base/internal/scoped_set_env.h" - -#ifdef _WIN32 -#include -#endif - -#include - -#include "absl/base/internal/raw_logging.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace base_internal { - -namespace { - -#ifdef _WIN32 -const int kMaxEnvVarValueSize = 1024; -#endif - -void SetEnvVar(const char* name, const char* value) { -#ifdef _WIN32 - SetEnvironmentVariableA(name, value); -#else - if (value == nullptr) { - ::unsetenv(name); - } else { - ::setenv(name, value, 1); - } -#endif -} - -} // namespace - -ScopedSetEnv::ScopedSetEnv(const char* var_name, const char* new_value) - : var_name_(var_name), was_unset_(false) { -#ifdef _WIN32 - char buf[kMaxEnvVarValueSize]; - auto get_res = GetEnvironmentVariableA(var_name_.c_str(), buf, sizeof(buf)); - ABSL_INTERNAL_CHECK(get_res < sizeof(buf), "value exceeds buffer size"); - - if (get_res == 0) { - was_unset_ = (GetLastError() == ERROR_ENVVAR_NOT_FOUND); - } else { - old_value_.assign(buf, get_res); - } - - SetEnvironmentVariableA(var_name_.c_str(), new_value); -#else - const char* val = ::getenv(var_name_.c_str()); - if (val == nullptr) { - was_unset_ = true; - } else { - old_value_ = val; - } -#endif - - SetEnvVar(var_name_.c_str(), new_value); -} - -ScopedSetEnv::~ScopedSetEnv() { - SetEnvVar(var_name_.c_str(), was_unset_ ? nullptr : old_value_.c_str()); -} - -} // namespace base_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/src/third_party/abseil-cpp/absl/base/internal/scoped_set_env.h b/src/third_party/abseil-cpp/absl/base/internal/scoped_set_env.h deleted file mode 100644 index 19ec7b5d8a..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/scoped_set_env.h +++ /dev/null @@ -1,45 +0,0 @@ -// -// Copyright 2019 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// - -#ifndef ABSL_BASE_INTERNAL_SCOPED_SET_ENV_H_ -#define ABSL_BASE_INTERNAL_SCOPED_SET_ENV_H_ - -#include - -#include "absl/base/config.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace base_internal { - -class ScopedSetEnv { - public: - ScopedSetEnv(const char* var_name, const char* new_value); - ~ScopedSetEnv(); - - private: - std::string var_name_; - std::string old_value_; - - // True if the environment variable was initially not set. - bool was_unset_; -}; - -} // namespace base_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_BASE_INTERNAL_SCOPED_SET_ENV_H_ diff --git a/src/third_party/abseil-cpp/absl/base/internal/scoped_set_env_test.cc b/src/third_party/abseil-cpp/absl/base/internal/scoped_set_env_test.cc deleted file mode 100644 index 5cbad246c6..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/scoped_set_env_test.cc +++ /dev/null @@ -1,99 +0,0 @@ -// Copyright 2019 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#ifdef _WIN32 -#include -#endif - -#include "gtest/gtest.h" -#include "absl/base/internal/scoped_set_env.h" - -namespace { - -using absl::base_internal::ScopedSetEnv; - -std::string GetEnvVar(const char* name) { -#ifdef _WIN32 - char buf[1024]; - auto get_res = GetEnvironmentVariableA(name, buf, sizeof(buf)); - if (get_res >= sizeof(buf)) { - return "TOO_BIG"; - } - - if (get_res == 0) { - return "UNSET"; - } - - return std::string(buf, get_res); -#else - const char* val = ::getenv(name); - if (val == nullptr) { - return "UNSET"; - } - - return val; -#endif -} - -TEST(ScopedSetEnvTest, SetNonExistingVarToString) { - EXPECT_EQ(GetEnvVar("SCOPED_SET_ENV_TEST_VAR"), "UNSET"); - - { - ScopedSetEnv scoped_set("SCOPED_SET_ENV_TEST_VAR", "value"); - - EXPECT_EQ(GetEnvVar("SCOPED_SET_ENV_TEST_VAR"), "value"); - } - - EXPECT_EQ(GetEnvVar("SCOPED_SET_ENV_TEST_VAR"), "UNSET"); -} - -TEST(ScopedSetEnvTest, SetNonExistingVarToNull) { - EXPECT_EQ(GetEnvVar("SCOPED_SET_ENV_TEST_VAR"), "UNSET"); - - { - ScopedSetEnv scoped_set("SCOPED_SET_ENV_TEST_VAR", nullptr); - - EXPECT_EQ(GetEnvVar("SCOPED_SET_ENV_TEST_VAR"), "UNSET"); - } - - EXPECT_EQ(GetEnvVar("SCOPED_SET_ENV_TEST_VAR"), "UNSET"); -} - -TEST(ScopedSetEnvTest, SetExistingVarToString) { - ScopedSetEnv scoped_set("SCOPED_SET_ENV_TEST_VAR", "value"); - EXPECT_EQ(GetEnvVar("SCOPED_SET_ENV_TEST_VAR"), "value"); - - { - ScopedSetEnv scoped_set("SCOPED_SET_ENV_TEST_VAR", "new_value"); - - EXPECT_EQ(GetEnvVar("SCOPED_SET_ENV_TEST_VAR"), "new_value"); - } - - EXPECT_EQ(GetEnvVar("SCOPED_SET_ENV_TEST_VAR"), "value"); -} - -TEST(ScopedSetEnvTest, SetExistingVarToNull) { - ScopedSetEnv scoped_set("SCOPED_SET_ENV_TEST_VAR", "value"); - EXPECT_EQ(GetEnvVar("SCOPED_SET_ENV_TEST_VAR"), "value"); - - { - ScopedSetEnv scoped_set("SCOPED_SET_ENV_TEST_VAR", nullptr); - - EXPECT_EQ(GetEnvVar("SCOPED_SET_ENV_TEST_VAR"), "UNSET"); - } - - EXPECT_EQ(GetEnvVar("SCOPED_SET_ENV_TEST_VAR"), "value"); -} - -} // namespace diff --git a/src/third_party/abseil-cpp/absl/base/internal/spinlock.cc b/src/third_party/abseil-cpp/absl/base/internal/spinlock.cc deleted file mode 100644 index 381b913b29..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/spinlock.cc +++ /dev/null @@ -1,232 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/base/internal/spinlock.h" - -#include -#include -#include - -#include "absl/base/attributes.h" -#include "absl/base/config.h" -#include "absl/base/internal/atomic_hook.h" -#include "absl/base/internal/cycleclock.h" -#include "absl/base/internal/spinlock_wait.h" -#include "absl/base/internal/sysinfo.h" /* For NumCPUs() */ -#include "absl/base/call_once.h" - -// Description of lock-word: -// 31..00: [............................3][2][1][0] -// -// [0]: kSpinLockHeld -// [1]: kSpinLockCooperative -// [2]: kSpinLockDisabledScheduling -// [31..3]: ONLY kSpinLockSleeper OR -// Wait time in cycles >> PROFILE_TIMESTAMP_SHIFT -// -// Detailed descriptions: -// -// Bit [0]: The lock is considered held iff kSpinLockHeld is set. -// -// Bit [1]: Eligible waiters (e.g. Fibers) may co-operatively reschedule when -// contended iff kSpinLockCooperative is set. -// -// Bit [2]: This bit is exclusive from bit [1]. It is used only by a -// non-cooperative lock. When set, indicates that scheduling was -// successfully disabled when the lock was acquired. May be unset, -// even if non-cooperative, if a ThreadIdentity did not yet exist at -// time of acquisition. -// -// Bit [3]: If this is the only upper bit ([31..3]) set then this lock was -// acquired without contention, however, at least one waiter exists. -// -// Otherwise, bits [31..3] represent the time spent by the current lock -// holder to acquire the lock. There may be outstanding waiter(s). - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace base_internal { - -ABSL_INTERNAL_ATOMIC_HOOK_ATTRIBUTES static base_internal::AtomicHook - submit_profile_data; - -void RegisterSpinLockProfiler(void (*fn)(const void *contendedlock, - int64_t wait_cycles)) { - submit_profile_data.Store(fn); -} - -#ifdef ABSL_INTERNAL_NEED_REDUNDANT_CONSTEXPR_DECL -// Static member variable definitions. -constexpr uint32_t SpinLock::kSpinLockHeld; -constexpr uint32_t SpinLock::kSpinLockCooperative; -constexpr uint32_t SpinLock::kSpinLockDisabledScheduling; -constexpr uint32_t SpinLock::kSpinLockSleeper; -constexpr uint32_t SpinLock::kWaitTimeMask; -#endif - -// Uncommon constructors. -SpinLock::SpinLock(base_internal::SchedulingMode mode) - : lockword_(IsCooperative(mode) ? kSpinLockCooperative : 0) { - ABSL_TSAN_MUTEX_CREATE(this, __tsan_mutex_not_static); -} - -// Monitor the lock to see if its value changes within some time period -// (adaptive_spin_count loop iterations). The last value read from the lock -// is returned from the method. -uint32_t SpinLock::SpinLoop() { - // We are already in the slow path of SpinLock, initialize the - // adaptive_spin_count here. - ABSL_CONST_INIT static absl::once_flag init_adaptive_spin_count; - ABSL_CONST_INIT static int adaptive_spin_count = 0; - base_internal::LowLevelCallOnce(&init_adaptive_spin_count, []() { - adaptive_spin_count = base_internal::NumCPUs() > 1 ? 1000 : 1; - }); - - int c = adaptive_spin_count; - uint32_t lock_value; - do { - lock_value = lockword_.load(std::memory_order_relaxed); - } while ((lock_value & kSpinLockHeld) != 0 && --c > 0); - return lock_value; -} - -void SpinLock::SlowLock() { - uint32_t lock_value = SpinLoop(); - lock_value = TryLockInternal(lock_value, 0); - if ((lock_value & kSpinLockHeld) == 0) { - return; - } - - base_internal::SchedulingMode scheduling_mode; - if ((lock_value & kSpinLockCooperative) != 0) { - scheduling_mode = base_internal::SCHEDULE_COOPERATIVE_AND_KERNEL; - } else { - scheduling_mode = base_internal::SCHEDULE_KERNEL_ONLY; - } - - // The lock was not obtained initially, so this thread needs to wait for - // it. Record the current timestamp in the local variable wait_start_time - // so the total wait time can be stored in the lockword once this thread - // obtains the lock. - int64_t wait_start_time = CycleClock::Now(); - uint32_t wait_cycles = 0; - int lock_wait_call_count = 0; - while ((lock_value & kSpinLockHeld) != 0) { - // If the lock is currently held, but not marked as having a sleeper, mark - // it as having a sleeper. - if ((lock_value & kWaitTimeMask) == 0) { - // Here, just "mark" that the thread is going to sleep. Don't store the - // lock wait time in the lock -- the lock word stores the amount of time - // that the current holder waited before acquiring the lock, not the wait - // time of any thread currently waiting to acquire it. - if (lockword_.compare_exchange_strong( - lock_value, lock_value | kSpinLockSleeper, - std::memory_order_relaxed, std::memory_order_relaxed)) { - // Successfully transitioned to kSpinLockSleeper. Pass - // kSpinLockSleeper to the SpinLockWait routine to properly indicate - // the last lock_value observed. - lock_value |= kSpinLockSleeper; - } else if ((lock_value & kSpinLockHeld) == 0) { - // Lock is free again, so try and acquire it before sleeping. The - // new lock state will be the number of cycles this thread waited if - // this thread obtains the lock. - lock_value = TryLockInternal(lock_value, wait_cycles); - continue; // Skip the delay at the end of the loop. - } else if ((lock_value & kWaitTimeMask) == 0) { - // The lock is still held, without a waiter being marked, but something - // else about the lock word changed, causing our CAS to fail. For - // example, a new lock holder may have acquired the lock with - // kSpinLockDisabledScheduling set, whereas the previous holder had not - // set that flag. In this case, attempt again to mark ourselves as a - // waiter. - continue; - } - } - - // SpinLockDelay() calls into fiber scheduler, we need to see - // synchronization there to avoid false positives. - ABSL_TSAN_MUTEX_PRE_DIVERT(this, 0); - // Wait for an OS specific delay. - base_internal::SpinLockDelay(&lockword_, lock_value, ++lock_wait_call_count, - scheduling_mode); - ABSL_TSAN_MUTEX_POST_DIVERT(this, 0); - // Spin again after returning from the wait routine to give this thread - // some chance of obtaining the lock. - lock_value = SpinLoop(); - wait_cycles = EncodeWaitCycles(wait_start_time, CycleClock::Now()); - lock_value = TryLockInternal(lock_value, wait_cycles); - } -} - -void SpinLock::SlowUnlock(uint32_t lock_value) { - base_internal::SpinLockWake(&lockword_, - false); // wake waiter if necessary - - // If our acquisition was contended, collect contentionz profile info. We - // reserve a unitary wait time to represent that a waiter exists without our - // own acquisition having been contended. - if ((lock_value & kWaitTimeMask) != kSpinLockSleeper) { - const int64_t wait_cycles = DecodeWaitCycles(lock_value); - ABSL_TSAN_MUTEX_PRE_DIVERT(this, 0); - submit_profile_data(this, wait_cycles); - ABSL_TSAN_MUTEX_POST_DIVERT(this, 0); - } -} - -// We use the upper 29 bits of the lock word to store the time spent waiting to -// acquire this lock. This is reported by contentionz profiling. Since the -// lower bits of the cycle counter wrap very quickly on high-frequency -// processors we divide to reduce the granularity to 2^kProfileTimestampShift -// sized units. On a 4Ghz machine this will lose track of wait times greater -// than (2^29/4 Ghz)*128 =~ 17.2 seconds. Such waits should be extremely rare. -static constexpr int kProfileTimestampShift = 7; - -// We currently reserve the lower 3 bits. -static constexpr int kLockwordReservedShift = 3; - -uint32_t SpinLock::EncodeWaitCycles(int64_t wait_start_time, - int64_t wait_end_time) { - static const int64_t kMaxWaitTime = - std::numeric_limits::max() >> kLockwordReservedShift; - int64_t scaled_wait_time = - (wait_end_time - wait_start_time) >> kProfileTimestampShift; - - // Return a representation of the time spent waiting that can be stored in - // the lock word's upper bits. - uint32_t clamped = static_cast( - std::min(scaled_wait_time, kMaxWaitTime) << kLockwordReservedShift); - - if (clamped == 0) { - return kSpinLockSleeper; // Just wake waiters, but don't record contention. - } - // Bump up value if necessary to avoid returning kSpinLockSleeper. - const uint32_t kMinWaitTime = - kSpinLockSleeper + (1 << kLockwordReservedShift); - if (clamped == kSpinLockSleeper) { - return kMinWaitTime; - } - return clamped; -} - -int64_t SpinLock::DecodeWaitCycles(uint32_t lock_value) { - // Cast to uint32_t first to ensure bits [63:32] are cleared. - const int64_t scaled_wait_time = - static_cast(lock_value & kWaitTimeMask); - return scaled_wait_time << (kProfileTimestampShift - kLockwordReservedShift); -} - -} // namespace base_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/src/third_party/abseil-cpp/absl/base/internal/spinlock.h b/src/third_party/abseil-cpp/absl/base/internal/spinlock.h deleted file mode 100644 index 09ba5824b1..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/spinlock.h +++ /dev/null @@ -1,252 +0,0 @@ -// -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// - -// Most users requiring mutual exclusion should use Mutex. -// SpinLock is provided for use in two situations: -// - for use by Abseil internal code that Mutex itself depends on -// - for async signal safety (see below) - -// SpinLock is async signal safe. If a spinlock is used within a signal -// handler, all code that acquires the lock must ensure that the signal cannot -// arrive while they are holding the lock. Typically, this is done by blocking -// the signal. -// -// Threads waiting on a SpinLock may be woken in an arbitrary order. - -#ifndef ABSL_BASE_INTERNAL_SPINLOCK_H_ -#define ABSL_BASE_INTERNAL_SPINLOCK_H_ - -#include -#include - -#include "absl/base/attributes.h" -#include "absl/base/const_init.h" -#include "absl/base/dynamic_annotations.h" -#include "absl/base/internal/low_level_scheduling.h" -#include "absl/base/internal/raw_logging.h" -#include "absl/base/internal/scheduling_mode.h" -#include "absl/base/internal/tsan_mutex_interface.h" -#include "absl/base/thread_annotations.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace base_internal { - -class ABSL_LOCKABLE SpinLock { - public: - SpinLock() : lockword_(kSpinLockCooperative) { - ABSL_TSAN_MUTEX_CREATE(this, __tsan_mutex_not_static); - } - - // Constructors that allow non-cooperative spinlocks to be created for use - // inside thread schedulers. Normal clients should not use these. - explicit SpinLock(base_internal::SchedulingMode mode); - - // Constructor for global SpinLock instances. See absl/base/const_init.h. - constexpr SpinLock(absl::ConstInitType, base_internal::SchedulingMode mode) - : lockword_(IsCooperative(mode) ? kSpinLockCooperative : 0) {} - - // For global SpinLock instances prefer trivial destructor when possible. - // Default but non-trivial destructor in some build configurations causes an - // extra static initializer. -#ifdef ABSL_INTERNAL_HAVE_TSAN_INTERFACE - ~SpinLock() { ABSL_TSAN_MUTEX_DESTROY(this, __tsan_mutex_not_static); } -#else - ~SpinLock() = default; -#endif - - // Acquire this SpinLock. - inline void Lock() ABSL_EXCLUSIVE_LOCK_FUNCTION() { - ABSL_TSAN_MUTEX_PRE_LOCK(this, 0); - if (!TryLockImpl()) { - SlowLock(); - } - ABSL_TSAN_MUTEX_POST_LOCK(this, 0, 0); - } - - // Try to acquire this SpinLock without blocking and return true if the - // acquisition was successful. If the lock was not acquired, false is - // returned. If this SpinLock is free at the time of the call, TryLock - // will return true with high probability. - inline bool TryLock() ABSL_EXCLUSIVE_TRYLOCK_FUNCTION(true) { - ABSL_TSAN_MUTEX_PRE_LOCK(this, __tsan_mutex_try_lock); - bool res = TryLockImpl(); - ABSL_TSAN_MUTEX_POST_LOCK( - this, __tsan_mutex_try_lock | (res ? 0 : __tsan_mutex_try_lock_failed), - 0); - return res; - } - - // Release this SpinLock, which must be held by the calling thread. - inline void Unlock() ABSL_UNLOCK_FUNCTION() { - ABSL_TSAN_MUTEX_PRE_UNLOCK(this, 0); - uint32_t lock_value = lockword_.load(std::memory_order_relaxed); - lock_value = lockword_.exchange(lock_value & kSpinLockCooperative, - std::memory_order_release); - - if ((lock_value & kSpinLockDisabledScheduling) != 0) { - base_internal::SchedulingGuard::EnableRescheduling(true); - } - if ((lock_value & kWaitTimeMask) != 0) { - // Collect contentionz profile info, and speed the wakeup of any waiter. - // The wait_cycles value indicates how long this thread spent waiting - // for the lock. - SlowUnlock(lock_value); - } - ABSL_TSAN_MUTEX_POST_UNLOCK(this, 0); - } - - // Determine if the lock is held. When the lock is held by the invoking - // thread, true will always be returned. Intended to be used as - // CHECK(lock.IsHeld()). - inline bool IsHeld() const { - return (lockword_.load(std::memory_order_relaxed) & kSpinLockHeld) != 0; - } - - // Return immediately if this thread holds the SpinLock exclusively. - // Otherwise, report an error by crashing with a diagnostic. - inline void AssertHeld() const ABSL_ASSERT_EXCLUSIVE_LOCK() { - if (!IsHeld()) { - ABSL_RAW_LOG(FATAL, "thread should hold the lock on SpinLock"); - } - } - - protected: - // These should not be exported except for testing. - - // Store number of cycles between wait_start_time and wait_end_time in a - // lock value. - static uint32_t EncodeWaitCycles(int64_t wait_start_time, - int64_t wait_end_time); - - // Extract number of wait cycles in a lock value. - static int64_t DecodeWaitCycles(uint32_t lock_value); - - // Provide access to protected method above. Use for testing only. - friend struct SpinLockTest; - - private: - // lockword_ is used to store the following: - // - // bit[0] encodes whether a lock is being held. - // bit[1] encodes whether a lock uses cooperative scheduling. - // bit[2] encodes whether the current lock holder disabled scheduling when - // acquiring the lock. Only set when kSpinLockHeld is also set. - // bit[3:31] encodes time a lock spent on waiting as a 29-bit unsigned int. - // This is set by the lock holder to indicate how long it waited on - // the lock before eventually acquiring it. The number of cycles is - // encoded as a 29-bit unsigned int, or in the case that the current - // holder did not wait but another waiter is queued, the LSB - // (kSpinLockSleeper) is set. The implementation does not explicitly - // track the number of queued waiters beyond this. It must always be - // assumed that waiters may exist if the current holder was required to - // queue. - // - // Invariant: if the lock is not held, the value is either 0 or - // kSpinLockCooperative. - static constexpr uint32_t kSpinLockHeld = 1; - static constexpr uint32_t kSpinLockCooperative = 2; - static constexpr uint32_t kSpinLockDisabledScheduling = 4; - static constexpr uint32_t kSpinLockSleeper = 8; - // Includes kSpinLockSleeper. - static constexpr uint32_t kWaitTimeMask = - ~(kSpinLockHeld | kSpinLockCooperative | kSpinLockDisabledScheduling); - - // Returns true if the provided scheduling mode is cooperative. - static constexpr bool IsCooperative( - base_internal::SchedulingMode scheduling_mode) { - return scheduling_mode == base_internal::SCHEDULE_COOPERATIVE_AND_KERNEL; - } - - uint32_t TryLockInternal(uint32_t lock_value, uint32_t wait_cycles); - void SlowLock() ABSL_ATTRIBUTE_COLD; - void SlowUnlock(uint32_t lock_value) ABSL_ATTRIBUTE_COLD; - uint32_t SpinLoop(); - - inline bool TryLockImpl() { - uint32_t lock_value = lockword_.load(std::memory_order_relaxed); - return (TryLockInternal(lock_value, 0) & kSpinLockHeld) == 0; - } - - std::atomic lockword_; - - SpinLock(const SpinLock&) = delete; - SpinLock& operator=(const SpinLock&) = delete; -}; - -// Corresponding locker object that arranges to acquire a spinlock for -// the duration of a C++ scope. -class ABSL_SCOPED_LOCKABLE SpinLockHolder { - public: - inline explicit SpinLockHolder(SpinLock* l) ABSL_EXCLUSIVE_LOCK_FUNCTION(l) - : lock_(l) { - l->Lock(); - } - inline ~SpinLockHolder() ABSL_UNLOCK_FUNCTION() { lock_->Unlock(); } - - SpinLockHolder(const SpinLockHolder&) = delete; - SpinLockHolder& operator=(const SpinLockHolder&) = delete; - - private: - SpinLock* lock_; -}; - -// Register a hook for profiling support. -// -// The function pointer registered here will be called whenever a spinlock is -// contended. The callback is given an opaque handle to the contended spinlock -// and the number of wait cycles. This is thread-safe, but only a single -// profiler can be registered. It is an error to call this function multiple -// times with different arguments. -void RegisterSpinLockProfiler(void (*fn)(const void* lock, - int64_t wait_cycles)); - -//------------------------------------------------------------------------------ -// Public interface ends here. -//------------------------------------------------------------------------------ - -// If (result & kSpinLockHeld) == 0, then *this was successfully locked. -// Otherwise, returns last observed value for lockword_. -inline uint32_t SpinLock::TryLockInternal(uint32_t lock_value, - uint32_t wait_cycles) { - if ((lock_value & kSpinLockHeld) != 0) { - return lock_value; - } - - uint32_t sched_disabled_bit = 0; - if ((lock_value & kSpinLockCooperative) == 0) { - // For non-cooperative locks we must make sure we mark ourselves as - // non-reschedulable before we attempt to CompareAndSwap. - if (base_internal::SchedulingGuard::DisableRescheduling()) { - sched_disabled_bit = kSpinLockDisabledScheduling; - } - } - - if (!lockword_.compare_exchange_strong( - lock_value, - kSpinLockHeld | lock_value | wait_cycles | sched_disabled_bit, - std::memory_order_acquire, std::memory_order_relaxed)) { - base_internal::SchedulingGuard::EnableRescheduling(sched_disabled_bit != 0); - } - - return lock_value; -} - -} // namespace base_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_BASE_INTERNAL_SPINLOCK_H_ diff --git a/src/third_party/abseil-cpp/absl/base/internal/spinlock_akaros.inc b/src/third_party/abseil-cpp/absl/base/internal/spinlock_akaros.inc deleted file mode 100644 index 7b0cada4f1..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/spinlock_akaros.inc +++ /dev/null @@ -1,35 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// This file is an Akaros-specific part of spinlock_wait.cc - -#include - -#include "absl/base/internal/scheduling_mode.h" - -extern "C" { - -ABSL_ATTRIBUTE_WEAK void ABSL_INTERNAL_C_SYMBOL(AbslInternalSpinLockDelay)( - std::atomic* /* lock_word */, uint32_t /* value */, - int /* loop */, absl::base_internal::SchedulingMode /* mode */) { - // In Akaros, one must take care not to call anything that could cause a - // malloc(), a blocking system call, or a uthread_yield() while holding a - // spinlock. Our callers assume will not call into libraries or other - // arbitrary code. -} - -ABSL_ATTRIBUTE_WEAK void ABSL_INTERNAL_C_SYMBOL(AbslInternalSpinLockWake)( - std::atomic* /* lock_word */, bool /* all */) {} - -} // extern "C" diff --git a/src/third_party/abseil-cpp/absl/base/internal/spinlock_benchmark.cc b/src/third_party/abseil-cpp/absl/base/internal/spinlock_benchmark.cc deleted file mode 100644 index 0451c65f95..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/spinlock_benchmark.cc +++ /dev/null @@ -1,52 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// See also //absl/synchronization:mutex_benchmark for a comparison of SpinLock -// and Mutex performance under varying levels of contention. - -#include "absl/base/internal/raw_logging.h" -#include "absl/base/internal/scheduling_mode.h" -#include "absl/base/internal/spinlock.h" -#include "absl/synchronization/internal/create_thread_identity.h" -#include "benchmark/benchmark.h" - -namespace { - -template -static void BM_SpinLock(benchmark::State& state) { - // Ensure a ThreadIdentity is installed. - ABSL_INTERNAL_CHECK( - absl::synchronization_internal::GetOrCreateCurrentThreadIdentity() != - nullptr, - "GetOrCreateCurrentThreadIdentity() failed"); - - static auto* spinlock = new absl::base_internal::SpinLock(scheduling_mode); - for (auto _ : state) { - absl::base_internal::SpinLockHolder holder(spinlock); - } -} - -BENCHMARK_TEMPLATE(BM_SpinLock, - absl::base_internal::SCHEDULE_KERNEL_ONLY) - ->UseRealTime() - ->Threads(1) - ->ThreadPerCpu(); - -BENCHMARK_TEMPLATE(BM_SpinLock, - absl::base_internal::SCHEDULE_COOPERATIVE_AND_KERNEL) - ->UseRealTime() - ->Threads(1) - ->ThreadPerCpu(); - -} // namespace diff --git a/src/third_party/abseil-cpp/absl/base/internal/spinlock_linux.inc b/src/third_party/abseil-cpp/absl/base/internal/spinlock_linux.inc deleted file mode 100644 index fe8ba674f5..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/spinlock_linux.inc +++ /dev/null @@ -1,71 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// This file is a Linux-specific part of spinlock_wait.cc - -#include -#include -#include - -#include -#include -#include -#include - -#include "absl/base/attributes.h" -#include "absl/base/internal/errno_saver.h" - -// The SpinLock lockword is `std::atomic`. Here we assert that -// `std::atomic` is bitwise equivalent of the `int` expected -// by SYS_futex. We also assume that reads/writes done to the lockword -// by SYS_futex have rational semantics with regard to the -// std::atomic<> API. C++ provides no guarantees of these assumptions, -// but they are believed to hold in practice. -static_assert(sizeof(std::atomic) == sizeof(int), - "SpinLock lockword has the wrong size for a futex"); - -// Some Android headers are missing these definitions even though they -// support these futex operations. -#ifdef __BIONIC__ -#ifndef SYS_futex -#define SYS_futex __NR_futex -#endif -#ifndef FUTEX_PRIVATE_FLAG -#define FUTEX_PRIVATE_FLAG 128 -#endif -#endif - -#if defined(__NR_futex_time64) && !defined(SYS_futex_time64) -#define SYS_futex_time64 __NR_futex_time64 -#endif - -#if defined(SYS_futex_time64) && !defined(SYS_futex) -#define SYS_futex SYS_futex_time64 -#endif - -extern "C" { - -ABSL_ATTRIBUTE_WEAK void ABSL_INTERNAL_C_SYMBOL(AbslInternalSpinLockDelay)( - std::atomic *w, uint32_t value, int, - absl::base_internal::SchedulingMode) { - absl::base_internal::ErrnoSaver errno_saver; - syscall(SYS_futex, w, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, value, nullptr); -} - -ABSL_ATTRIBUTE_WEAK void ABSL_INTERNAL_C_SYMBOL(AbslInternalSpinLockWake)( - std::atomic *w, bool all) { - syscall(SYS_futex, w, FUTEX_WAKE | FUTEX_PRIVATE_FLAG, all ? INT_MAX : 1, 0); -} - -} // extern "C" diff --git a/src/third_party/abseil-cpp/absl/base/internal/spinlock_posix.inc b/src/third_party/abseil-cpp/absl/base/internal/spinlock_posix.inc deleted file mode 100644 index 4f6f887d99..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/spinlock_posix.inc +++ /dev/null @@ -1,46 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// This file is a Posix-specific part of spinlock_wait.cc - -#include - -#include -#include - -#include "absl/base/internal/errno_saver.h" -#include "absl/base/internal/scheduling_mode.h" -#include "absl/base/port.h" - -extern "C" { - -ABSL_ATTRIBUTE_WEAK void ABSL_INTERNAL_C_SYMBOL(AbslInternalSpinLockDelay)( - std::atomic* /* lock_word */, uint32_t /* value */, int loop, - absl::base_internal::SchedulingMode /* mode */) { - absl::base_internal::ErrnoSaver errno_saver; - if (loop == 0) { - } else if (loop == 1) { - sched_yield(); - } else { - struct timespec tm; - tm.tv_sec = 0; - tm.tv_nsec = absl::base_internal::SpinLockSuggestedDelayNS(loop); - nanosleep(&tm, nullptr); - } -} - -ABSL_ATTRIBUTE_WEAK void ABSL_INTERNAL_C_SYMBOL(AbslInternalSpinLockWake)( - std::atomic* /* lock_word */, bool /* all */) {} - -} // extern "C" diff --git a/src/third_party/abseil-cpp/absl/base/internal/spinlock_wait.cc b/src/third_party/abseil-cpp/absl/base/internal/spinlock_wait.cc deleted file mode 100644 index fa824be1c0..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/spinlock_wait.cc +++ /dev/null @@ -1,81 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// The OS-specific header included below must provide two calls: -// AbslInternalSpinLockDelay() and AbslInternalSpinLockWake(). -// See spinlock_wait.h for the specs. - -#include -#include - -#include "absl/base/internal/spinlock_wait.h" - -#if defined(_WIN32) -#include "absl/base/internal/spinlock_win32.inc" -#elif defined(__linux__) -#include "absl/base/internal/spinlock_linux.inc" -#elif defined(__akaros__) -#include "absl/base/internal/spinlock_akaros.inc" -#else -#include "absl/base/internal/spinlock_posix.inc" -#endif - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace base_internal { - -// See spinlock_wait.h for spec. -uint32_t SpinLockWait(std::atomic *w, int n, - const SpinLockWaitTransition trans[], - base_internal::SchedulingMode scheduling_mode) { - int loop = 0; - for (;;) { - uint32_t v = w->load(std::memory_order_acquire); - int i; - for (i = 0; i != n && v != trans[i].from; i++) { - } - if (i == n) { - SpinLockDelay(w, v, ++loop, scheduling_mode); // no matching transition - } else if (trans[i].to == v || // null transition - w->compare_exchange_strong(v, trans[i].to, - std::memory_order_acquire, - std::memory_order_relaxed)) { - if (trans[i].done) return v; - } - } -} - -static std::atomic delay_rand; - -// Return a suggested delay in nanoseconds for iteration number "loop" -int SpinLockSuggestedDelayNS(int loop) { - // Weak pseudo-random number generator to get some spread between threads - // when many are spinning. - uint64_t r = delay_rand.load(std::memory_order_relaxed); - r = 0x5deece66dLL * r + 0xb; // numbers from nrand48() - delay_rand.store(r, std::memory_order_relaxed); - - if (loop < 0 || loop > 32) { // limit loop to 0..32 - loop = 32; - } - const int kMinDelay = 128 << 10; // 128us - // Double delay every 8 iterations, up to 16x (2ms). - int delay = kMinDelay << (loop / 8); - // Randomize in delay..2*delay range, for resulting 128us..4ms range. - return delay | ((delay - 1) & static_cast(r)); -} - -} // namespace base_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/src/third_party/abseil-cpp/absl/base/internal/spinlock_wait.h b/src/third_party/abseil-cpp/absl/base/internal/spinlock_wait.h deleted file mode 100644 index 9a1adcda5e..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/spinlock_wait.h +++ /dev/null @@ -1,95 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#ifndef ABSL_BASE_INTERNAL_SPINLOCK_WAIT_H_ -#define ABSL_BASE_INTERNAL_SPINLOCK_WAIT_H_ - -// Operations to make atomic transitions on a word, and to allow -// waiting for those transitions to become possible. - -#include -#include - -#include "absl/base/internal/scheduling_mode.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace base_internal { - -// SpinLockWait() waits until it can perform one of several transitions from -// "from" to "to". It returns when it performs a transition where done==true. -struct SpinLockWaitTransition { - uint32_t from; - uint32_t to; - bool done; -}; - -// Wait until *w can transition from trans[i].from to trans[i].to for some i -// satisfying 0<=i *w, int n, - const SpinLockWaitTransition trans[], - SchedulingMode scheduling_mode); - -// If possible, wake some thread that has called SpinLockDelay(w, ...). If `all` -// is true, wake all such threads. On some systems, this may be a no-op; on -// those systems, threads calling SpinLockDelay() will always wake eventually -// even if SpinLockWake() is never called. -void SpinLockWake(std::atomic *w, bool all); - -// Wait for an appropriate spin delay on iteration "loop" of a -// spin loop on location *w, whose previously observed value was "value". -// SpinLockDelay() may do nothing, may yield the CPU, may sleep a clock tick, -// or may wait for a call to SpinLockWake(w). -void SpinLockDelay(std::atomic *w, uint32_t value, int loop, - base_internal::SchedulingMode scheduling_mode); - -// Helper used by AbslInternalSpinLockDelay. -// Returns a suggested delay in nanoseconds for iteration number "loop". -int SpinLockSuggestedDelayNS(int loop); - -} // namespace base_internal -ABSL_NAMESPACE_END -} // namespace absl - -// In some build configurations we pass --detect-odr-violations to the -// gold linker. This causes it to flag weak symbol overrides as ODR -// violations. Because ODR only applies to C++ and not C, -// --detect-odr-violations ignores symbols not mangled with C++ names. -// By changing our extension points to be extern "C", we dodge this -// check. -extern "C" { -void ABSL_INTERNAL_C_SYMBOL(AbslInternalSpinLockWake)(std::atomic *w, - bool all); -void ABSL_INTERNAL_C_SYMBOL(AbslInternalSpinLockDelay)( - std::atomic *w, uint32_t value, int loop, - absl::base_internal::SchedulingMode scheduling_mode); -} - -inline void absl::base_internal::SpinLockWake(std::atomic *w, - bool all) { - ABSL_INTERNAL_C_SYMBOL(AbslInternalSpinLockWake)(w, all); -} - -inline void absl::base_internal::SpinLockDelay( - std::atomic *w, uint32_t value, int loop, - absl::base_internal::SchedulingMode scheduling_mode) { - ABSL_INTERNAL_C_SYMBOL(AbslInternalSpinLockDelay) - (w, value, loop, scheduling_mode); -} - -#endif // ABSL_BASE_INTERNAL_SPINLOCK_WAIT_H_ diff --git a/src/third_party/abseil-cpp/absl/base/internal/spinlock_win32.inc b/src/third_party/abseil-cpp/absl/base/internal/spinlock_win32.inc deleted file mode 100644 index 934c2016fb..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/spinlock_win32.inc +++ /dev/null @@ -1,40 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// This file is a Win32-specific part of spinlock_wait.cc - -#include -#include -#include "absl/base/internal/scheduling_mode.h" - -extern "C" { - -void ABSL_INTERNAL_C_SYMBOL(AbslInternalSpinLockDelay)( - std::atomic* /* lock_word */, uint32_t /* value */, int loop, - absl::base_internal::SchedulingMode /* mode */) { - if (loop == 0) { - } else if (loop == 1) { - Sleep(0); - } else { - // SpinLockSuggestedDelayNS() always returns a positive integer, so this - // static_cast is safe. - Sleep(static_cast( - absl::base_internal::SpinLockSuggestedDelayNS(loop) / 1000000)); - } -} - -void ABSL_INTERNAL_C_SYMBOL(AbslInternalSpinLockWake)( - std::atomic* /* lock_word */, bool /* all */) {} - -} // extern "C" diff --git a/src/third_party/abseil-cpp/absl/base/internal/strerror.cc b/src/third_party/abseil-cpp/absl/base/internal/strerror.cc deleted file mode 100644 index de91c05e07..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/strerror.cc +++ /dev/null @@ -1,88 +0,0 @@ -// Copyright 2020 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/base/internal/strerror.h" - -#include -#include -#include -#include -#include -#include -#include - -#include "absl/base/internal/errno_saver.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace base_internal { -namespace { - -const char* StrErrorAdaptor(int errnum, char* buf, size_t buflen) { -#if defined(_WIN32) - int rc = strerror_s(buf, buflen, errnum); - buf[buflen - 1] = '\0'; // guarantee NUL termination - if (rc == 0 && strncmp(buf, "Unknown error", buflen) == 0) *buf = '\0'; - return buf; -#else - // The type of `ret` is platform-specific; both of these branches must compile - // either way but only one will execute on any given platform: - auto ret = strerror_r(errnum, buf, buflen); - if (std::is_same::value) { - // XSI `strerror_r`; `ret` is `int`: - if (ret) *buf = '\0'; - return buf; - } else { - // GNU `strerror_r`; `ret` is `char *`: - return reinterpret_cast(ret); - } -#endif -} - -std::string StrErrorInternal(int errnum) { - char buf[100]; - const char* str = StrErrorAdaptor(errnum, buf, sizeof buf); - if (*str == '\0') { - snprintf(buf, sizeof buf, "Unknown error %d", errnum); - str = buf; - } - return str; -} - -// kSysNerr is the number of errors from a recent glibc. `StrError()` falls back -// to `StrErrorAdaptor()` if the value is larger than this. -constexpr int kSysNerr = 135; - -std::array* NewStrErrorTable() { - auto* table = new std::array; - for (size_t i = 0; i < table->size(); ++i) { - (*table)[i] = StrErrorInternal(static_cast(i)); - } - return table; -} - -} // namespace - -std::string StrError(int errnum) { - absl::base_internal::ErrnoSaver errno_saver; - static const auto* table = NewStrErrorTable(); - if (errnum >= 0 && static_cast(errnum) < table->size()) { - return (*table)[static_cast(errnum)]; - } - return StrErrorInternal(errnum); -} - -} // namespace base_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/src/third_party/abseil-cpp/absl/base/internal/strerror.h b/src/third_party/abseil-cpp/absl/base/internal/strerror.h deleted file mode 100644 index 350097366e..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/strerror.h +++ /dev/null @@ -1,39 +0,0 @@ -// Copyright 2020 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#ifndef ABSL_BASE_INTERNAL_STRERROR_H_ -#define ABSL_BASE_INTERNAL_STRERROR_H_ - -#include - -#include "absl/base/config.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace base_internal { - -// A portable and thread-safe alternative to C89's `strerror`. -// -// The C89 specification of `strerror` is not suitable for use in a -// multi-threaded application as the returned string may be changed by calls to -// `strerror` from another thread. The many non-stdlib alternatives differ -// enough in their names, availability, and semantics to justify this wrapper -// around them. `errno` will not be modified by a call to `absl::StrError`. -std::string StrError(int errnum); - -} // namespace base_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_BASE_INTERNAL_STRERROR_H_ diff --git a/src/third_party/abseil-cpp/absl/base/internal/strerror_benchmark.cc b/src/third_party/abseil-cpp/absl/base/internal/strerror_benchmark.cc deleted file mode 100644 index c9ab14a89d..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/strerror_benchmark.cc +++ /dev/null @@ -1,29 +0,0 @@ -// Copyright 2020 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include -#include -#include - -#include "absl/base/internal/strerror.h" -#include "benchmark/benchmark.h" - -namespace { -void BM_AbslStrError(benchmark::State& state) { - for (auto _ : state) { - benchmark::DoNotOptimize(absl::base_internal::StrError(ERANGE)); - } -} -BENCHMARK(BM_AbslStrError); -} // namespace diff --git a/src/third_party/abseil-cpp/absl/base/internal/strerror_test.cc b/src/third_party/abseil-cpp/absl/base/internal/strerror_test.cc deleted file mode 100644 index e32d5b5c9b..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/strerror_test.cc +++ /dev/null @@ -1,88 +0,0 @@ -// Copyright 2020 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/base/internal/strerror.h" - -#include -#include -#include -#include -#include -#include // NOLINT(build/c++11) -#include - -#include "gmock/gmock.h" -#include "gtest/gtest.h" -#include "absl/strings/match.h" - -namespace { -using ::testing::AnyOf; -using ::testing::Eq; - -TEST(StrErrorTest, ValidErrorCode) { - errno = ERANGE; - EXPECT_THAT(absl::base_internal::StrError(EDOM), Eq(strerror(EDOM))); - EXPECT_THAT(errno, Eq(ERANGE)); -} - -TEST(StrErrorTest, InvalidErrorCode) { - errno = ERANGE; - EXPECT_THAT(absl::base_internal::StrError(-1), - AnyOf(Eq("No error information"), Eq("Unknown error -1"))); - EXPECT_THAT(errno, Eq(ERANGE)); -} - -TEST(StrErrorTest, MultipleThreads) { - // In this test, we will start up 2 threads and have each one call - // StrError 1000 times, each time with a different errnum. We - // expect that StrError(errnum) will return a string equal to the - // one returned by strerror(errnum), if the code is known. Since - // strerror is known to be thread-hostile, collect all the expected - // strings up front. - const int kNumCodes = 1000; - std::vector expected_strings(kNumCodes); - for (int i = 0; i < kNumCodes; ++i) { - expected_strings[i] = strerror(i); - } - - std::atomic_int counter(0); - auto thread_fun = [&]() { - for (int i = 0; i < kNumCodes; ++i) { - ++counter; - errno = ERANGE; - const std::string value = absl::base_internal::StrError(i); - // EXPECT_* could change errno. Stash it first. - int check_err = errno; - EXPECT_THAT(check_err, Eq(ERANGE)); - // Only the GNU implementation is guaranteed to provide the - // string "Unknown error nnn". POSIX doesn't say anything. - if (!absl::StartsWith(value, "Unknown error ")) { - EXPECT_THAT(value, Eq(expected_strings[i])); - } - } - }; - - const int kNumThreads = 100; - std::vector threads; - for (int i = 0; i < kNumThreads; ++i) { - threads.push_back(std::thread(thread_fun)); - } - for (auto& thread : threads) { - thread.join(); - } - - EXPECT_THAT(counter, Eq(kNumThreads * kNumCodes)); -} - -} // namespace diff --git a/src/third_party/abseil-cpp/absl/base/internal/sysinfo.cc b/src/third_party/abseil-cpp/absl/base/internal/sysinfo.cc deleted file mode 100644 index da499d3a77..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/sysinfo.cc +++ /dev/null @@ -1,511 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/base/internal/sysinfo.h" - -#include "absl/base/attributes.h" - -#ifdef _WIN32 -#include -#else -#include -#include -#include -#include -#include -#endif - -#ifdef __linux__ -#include -#endif - -#if defined(__APPLE__) || defined(__FreeBSD__) -#include -#endif - -#if defined(__myriad2__) -#include -#endif - -#include - -#include -#include -#include -#include -#include -#include -#include // NOLINT(build/c++11) -#include -#include - -#include "absl/base/call_once.h" -#include "absl/base/config.h" -#include "absl/base/internal/raw_logging.h" -#include "absl/base/internal/spinlock.h" -#include "absl/base/internal/unscaledcycleclock.h" -#include "absl/base/thread_annotations.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace base_internal { - -namespace { - -#if defined(_WIN32) - -// Returns number of bits set in `bitMask` -DWORD Win32CountSetBits(ULONG_PTR bitMask) { - for (DWORD bitSetCount = 0; ; ++bitSetCount) { - if (bitMask == 0) return bitSetCount; - bitMask &= bitMask - 1; - } -} - -// Returns the number of logical CPUs using GetLogicalProcessorInformation(), or -// 0 if the number of processors is not available or can not be computed. -// https://docs.microsoft.com/en-us/windows/win32/api/sysinfoapi/nf-sysinfoapi-getlogicalprocessorinformation -int Win32NumCPUs() { -#pragma comment(lib, "kernel32.lib") - using Info = SYSTEM_LOGICAL_PROCESSOR_INFORMATION; - - DWORD info_size = sizeof(Info); - Info* info(static_cast(malloc(info_size))); - if (info == nullptr) return 0; - - bool success = GetLogicalProcessorInformation(info, &info_size); - if (!success && GetLastError() == ERROR_INSUFFICIENT_BUFFER) { - free(info); - info = static_cast(malloc(info_size)); - if (info == nullptr) return 0; - success = GetLogicalProcessorInformation(info, &info_size); - } - - DWORD logicalProcessorCount = 0; - if (success) { - Info* ptr = info; - DWORD byteOffset = 0; - while (byteOffset + sizeof(Info) <= info_size) { - switch (ptr->Relationship) { - case RelationProcessorCore: - logicalProcessorCount += Win32CountSetBits(ptr->ProcessorMask); - break; - - case RelationNumaNode: - case RelationCache: - case RelationProcessorPackage: - // Ignore other entries - break; - - default: - // Ignore unknown entries - break; - } - byteOffset += sizeof(Info); - ptr++; - } - } - free(info); - return static_cast(logicalProcessorCount); -} - -#endif - -} // namespace - -static int GetNumCPUs() { -#if defined(__myriad2__) - return 1; -#elif defined(_WIN32) - const int hardware_concurrency = Win32NumCPUs(); - return hardware_concurrency ? hardware_concurrency : 1; -#elif defined(_AIX) - return sysconf(_SC_NPROCESSORS_ONLN); -#else - // Other possibilities: - // - Read /sys/devices/system/cpu/online and use cpumask_parse() - // - sysconf(_SC_NPROCESSORS_ONLN) - return static_cast(std::thread::hardware_concurrency()); -#endif -} - -#if defined(_WIN32) - -static double GetNominalCPUFrequency() { -#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP) && \ - !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP) - // UWP apps don't have access to the registry and currently don't provide an - // API informing about CPU nominal frequency. - return 1.0; -#else -#pragma comment(lib, "advapi32.lib") // For Reg* functions. - HKEY key; - // Use the Reg* functions rather than the SH functions because shlwapi.dll - // pulls in gdi32.dll which makes process destruction much more costly. - if (RegOpenKeyExA(HKEY_LOCAL_MACHINE, - "HARDWARE\\DESCRIPTION\\System\\CentralProcessor\\0", 0, - KEY_READ, &key) == ERROR_SUCCESS) { - DWORD type = 0; - DWORD data = 0; - DWORD data_size = sizeof(data); - auto result = RegQueryValueExA(key, "~MHz", 0, &type, - reinterpret_cast(&data), &data_size); - RegCloseKey(key); - if (result == ERROR_SUCCESS && type == REG_DWORD && - data_size == sizeof(data)) { - return data * 1e6; // Value is MHz. - } - } - return 1.0; -#endif // WINAPI_PARTITION_APP && !WINAPI_PARTITION_DESKTOP -} - -#elif defined(CTL_HW) && defined(HW_CPU_FREQ) - -static double GetNominalCPUFrequency() { - unsigned freq; - size_t size = sizeof(freq); - int mib[2] = {CTL_HW, HW_CPU_FREQ}; - if (sysctl(mib, 2, &freq, &size, nullptr, 0) == 0) { - return static_cast(freq); - } - return 1.0; -} - -#else - -// Helper function for reading a long from a file. Returns true if successful -// and the memory location pointed to by value is set to the value read. -static bool ReadLongFromFile(const char *file, long *value) { - bool ret = false; - int fd = open(file, O_RDONLY | O_CLOEXEC); - if (fd != -1) { - char line[1024]; - char *err; - memset(line, '\0', sizeof(line)); - ssize_t len; - do { - len = read(fd, line, sizeof(line) - 1); - } while (len < 0 && errno == EINTR); - if (len <= 0) { - ret = false; - } else { - const long temp_value = strtol(line, &err, 10); - if (line[0] != '\0' && (*err == '\n' || *err == '\0')) { - *value = temp_value; - ret = true; - } - } - close(fd); - } - return ret; -} - -#if defined(ABSL_INTERNAL_UNSCALED_CYCLECLOCK_FREQUENCY_IS_CPU_FREQUENCY) - -// Reads a monotonic time source and returns a value in -// nanoseconds. The returned value uses an arbitrary epoch, not the -// Unix epoch. -static int64_t ReadMonotonicClockNanos() { - struct timespec t; -#ifdef CLOCK_MONOTONIC_RAW - int rc = clock_gettime(CLOCK_MONOTONIC_RAW, &t); -#else - int rc = clock_gettime(CLOCK_MONOTONIC, &t); -#endif - if (rc != 0) { - perror("clock_gettime() failed"); - abort(); - } - return int64_t{t.tv_sec} * 1000000000 + t.tv_nsec; -} - -class UnscaledCycleClockWrapperForInitializeFrequency { - public: - static int64_t Now() { return base_internal::UnscaledCycleClock::Now(); } -}; - -struct TimeTscPair { - int64_t time; // From ReadMonotonicClockNanos(). - int64_t tsc; // From UnscaledCycleClock::Now(). -}; - -// Returns a pair of values (monotonic kernel time, TSC ticks) that -// approximately correspond to each other. This is accomplished by -// doing several reads and picking the reading with the lowest -// latency. This approach is used to minimize the probability that -// our thread was preempted between clock reads. -static TimeTscPair GetTimeTscPair() { - int64_t best_latency = std::numeric_limits::max(); - TimeTscPair best; - for (int i = 0; i < 10; ++i) { - int64_t t0 = ReadMonotonicClockNanos(); - int64_t tsc = UnscaledCycleClockWrapperForInitializeFrequency::Now(); - int64_t t1 = ReadMonotonicClockNanos(); - int64_t latency = t1 - t0; - if (latency < best_latency) { - best_latency = latency; - best.time = t0; - best.tsc = tsc; - } - } - return best; -} - -// Measures and returns the TSC frequency by taking a pair of -// measurements approximately `sleep_nanoseconds` apart. -static double MeasureTscFrequencyWithSleep(int sleep_nanoseconds) { - auto t0 = GetTimeTscPair(); - struct timespec ts; - ts.tv_sec = 0; - ts.tv_nsec = sleep_nanoseconds; - while (nanosleep(&ts, &ts) != 0 && errno == EINTR) {} - auto t1 = GetTimeTscPair(); - double elapsed_ticks = t1.tsc - t0.tsc; - double elapsed_time = (t1.time - t0.time) * 1e-9; - return elapsed_ticks / elapsed_time; -} - -// Measures and returns the TSC frequency by calling -// MeasureTscFrequencyWithSleep(), doubling the sleep interval until the -// frequency measurement stabilizes. -static double MeasureTscFrequency() { - double last_measurement = -1.0; - int sleep_nanoseconds = 1000000; // 1 millisecond. - for (int i = 0; i < 8; ++i) { - double measurement = MeasureTscFrequencyWithSleep(sleep_nanoseconds); - if (measurement * 0.99 < last_measurement && - last_measurement < measurement * 1.01) { - // Use the current measurement if it is within 1% of the - // previous measurement. - return measurement; - } - last_measurement = measurement; - sleep_nanoseconds *= 2; - } - return last_measurement; -} - -#endif // ABSL_INTERNAL_UNSCALED_CYCLECLOCK_FREQUENCY_IS_CPU_FREQUENCY - -static double GetNominalCPUFrequency() { - long freq = 0; - - // Google's production kernel has a patch to export the TSC - // frequency through sysfs. If the kernel is exporting the TSC - // frequency use that. There are issues where cpuinfo_max_freq - // cannot be relied on because the BIOS may be exporting an invalid - // p-state (on x86) or p-states may be used to put the processor in - // a new mode (turbo mode). Essentially, those frequencies cannot - // always be relied upon. The same reasons apply to /proc/cpuinfo as - // well. - if (ReadLongFromFile("/sys/devices/system/cpu/cpu0/tsc_freq_khz", &freq)) { - return freq * 1e3; // Value is kHz. - } - -#if defined(ABSL_INTERNAL_UNSCALED_CYCLECLOCK_FREQUENCY_IS_CPU_FREQUENCY) - // On these platforms, the TSC frequency is the nominal CPU - // frequency. But without having the kernel export it directly - // though /sys/devices/system/cpu/cpu0/tsc_freq_khz, there is no - // other way to reliably get the TSC frequency, so we have to - // measure it ourselves. Some CPUs abuse cpuinfo_max_freq by - // exporting "fake" frequencies for implementing new features. For - // example, Intel's turbo mode is enabled by exposing a p-state - // value with a higher frequency than that of the real TSC - // rate. Because of this, we prefer to measure the TSC rate - // ourselves on i386 and x86-64. - return MeasureTscFrequency(); -#else - - // If CPU scaling is in effect, we want to use the *maximum* - // frequency, not whatever CPU speed some random processor happens - // to be using now. - if (ReadLongFromFile("/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq", - &freq)) { - return freq * 1e3; // Value is kHz. - } - - return 1.0; -#endif // !ABSL_INTERNAL_UNSCALED_CYCLECLOCK_FREQUENCY_IS_CPU_FREQUENCY -} - -#endif - -ABSL_CONST_INIT static once_flag init_num_cpus_once; -ABSL_CONST_INIT static int num_cpus = 0; - -// NumCPUs() may be called before main() and before malloc is properly -// initialized, therefore this must not allocate memory. -int NumCPUs() { - base_internal::LowLevelCallOnce( - &init_num_cpus_once, []() { num_cpus = GetNumCPUs(); }); - return num_cpus; -} - -// A default frequency of 0.0 might be dangerous if it is used in division. -ABSL_CONST_INIT static once_flag init_nominal_cpu_frequency_once; -ABSL_CONST_INIT static double nominal_cpu_frequency = 1.0; - -// NominalCPUFrequency() may be called before main() and before malloc is -// properly initialized, therefore this must not allocate memory. -double NominalCPUFrequency() { - base_internal::LowLevelCallOnce( - &init_nominal_cpu_frequency_once, - []() { nominal_cpu_frequency = GetNominalCPUFrequency(); }); - return nominal_cpu_frequency; -} - -#if defined(_WIN32) - -pid_t GetTID() { - return pid_t{GetCurrentThreadId()}; -} - -#elif defined(__linux__) - -#ifndef SYS_gettid -#define SYS_gettid __NR_gettid -#endif - -pid_t GetTID() { - return static_cast(syscall(SYS_gettid)); -} - -#elif defined(__akaros__) - -pid_t GetTID() { - // Akaros has a concept of "vcore context", which is the state the program - // is forced into when we need to make a user-level scheduling decision, or - // run a signal handler. This is analogous to the interrupt context that a - // CPU might enter if it encounters some kind of exception. - // - // There is no current thread context in vcore context, but we need to give - // a reasonable answer if asked for a thread ID (e.g., in a signal handler). - // Thread 0 always exists, so if we are in vcore context, we return that. - // - // Otherwise, we know (since we are using pthreads) that the uthread struct - // current_uthread is pointing to is the first element of a - // struct pthread_tcb, so we extract and return the thread ID from that. - // - // TODO(dcross): Akaros anticipates moving the thread ID to the uthread - // structure at some point. We should modify this code to remove the cast - // when that happens. - if (in_vcore_context()) - return 0; - return reinterpret_cast(current_uthread)->id; -} - -#elif defined(__myriad2__) - -pid_t GetTID() { - uint32_t tid; - rtems_task_ident(RTEMS_SELF, 0, &tid); - return tid; -} - -#else - -// Fallback implementation of GetTID using pthread_getspecific. -ABSL_CONST_INIT static once_flag tid_once; -ABSL_CONST_INIT static pthread_key_t tid_key; -ABSL_CONST_INIT static absl::base_internal::SpinLock tid_lock( - absl::kConstInit, base_internal::SCHEDULE_KERNEL_ONLY); - -// We set a bit per thread in this array to indicate that an ID is in -// use. ID 0 is unused because it is the default value returned by -// pthread_getspecific(). -ABSL_CONST_INIT static std::vector *tid_array - ABSL_GUARDED_BY(tid_lock) = nullptr; -static constexpr int kBitsPerWord = 32; // tid_array is uint32_t. - -// Returns the TID to tid_array. -static void FreeTID(void *v) { - intptr_t tid = reinterpret_cast(v); - intptr_t word = tid / kBitsPerWord; - uint32_t mask = ~(1u << (tid % kBitsPerWord)); - absl::base_internal::SpinLockHolder lock(&tid_lock); - assert(0 <= word && static_cast(word) < tid_array->size()); - (*tid_array)[static_cast(word)] &= mask; -} - -static void InitGetTID() { - if (pthread_key_create(&tid_key, FreeTID) != 0) { - // The logging system calls GetTID() so it can't be used here. - perror("pthread_key_create failed"); - abort(); - } - - // Initialize tid_array. - absl::base_internal::SpinLockHolder lock(&tid_lock); - tid_array = new std::vector(1); - (*tid_array)[0] = 1; // ID 0 is never-allocated. -} - -// Return a per-thread small integer ID from pthread's thread-specific data. -pid_t GetTID() { - absl::call_once(tid_once, InitGetTID); - - intptr_t tid = reinterpret_cast(pthread_getspecific(tid_key)); - if (tid != 0) { - return static_cast(tid); - } - - int bit; // tid_array[word] = 1u << bit; - size_t word; - { - // Search for the first unused ID. - absl::base_internal::SpinLockHolder lock(&tid_lock); - // First search for a word in the array that is not all ones. - word = 0; - while (word < tid_array->size() && ~(*tid_array)[word] == 0) { - ++word; - } - if (word == tid_array->size()) { - tid_array->push_back(0); // No space left, add kBitsPerWord more IDs. - } - // Search for a zero bit in the word. - bit = 0; - while (bit < kBitsPerWord && (((*tid_array)[word] >> bit) & 1) != 0) { - ++bit; - } - tid = - static_cast((word * kBitsPerWord) + static_cast(bit)); - (*tid_array)[word] |= 1u << bit; // Mark the TID as allocated. - } - - if (pthread_setspecific(tid_key, reinterpret_cast(tid)) != 0) { - perror("pthread_setspecific failed"); - abort(); - } - - return static_cast(tid); -} - -#endif - -// GetCachedTID() caches the thread ID in thread-local storage (which is a -// userspace construct) to avoid unnecessary system calls. Without this caching, -// it can take roughly 98ns, while it takes roughly 1ns with this caching. -pid_t GetCachedTID() { -#ifdef ABSL_HAVE_THREAD_LOCAL - static thread_local pid_t thread_id = GetTID(); - return thread_id; -#else - return GetTID(); -#endif // ABSL_HAVE_THREAD_LOCAL -} - -} // namespace base_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/src/third_party/abseil-cpp/absl/base/internal/sysinfo.h b/src/third_party/abseil-cpp/absl/base/internal/sysinfo.h deleted file mode 100644 index 119cf1f0e8..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/sysinfo.h +++ /dev/null @@ -1,74 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// This file includes routines to find out characteristics -// of the machine a program is running on. It is undoubtedly -// system-dependent. - -// Functions listed here that accept a pid_t as an argument act on the -// current process if the pid_t argument is 0 -// All functions here are thread-hostile due to file caching unless -// commented otherwise. - -#ifndef ABSL_BASE_INTERNAL_SYSINFO_H_ -#define ABSL_BASE_INTERNAL_SYSINFO_H_ - -#ifndef _WIN32 -#include -#endif - -#include - -#include "absl/base/config.h" -#include "absl/base/port.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace base_internal { - -// Nominal core processor cycles per second of each processor. This is _not_ -// necessarily the frequency of the CycleClock counter (see cycleclock.h) -// Thread-safe. -double NominalCPUFrequency(); - -// Number of logical processors (hyperthreads) in system. Thread-safe. -int NumCPUs(); - -// Return the thread id of the current thread, as told by the system. -// No two currently-live threads implemented by the OS shall have the same ID. -// Thread ids of exited threads may be reused. Multiple user-level threads -// may have the same thread ID if multiplexed on the same OS thread. -// -// On Linux, you may send a signal to the resulting ID with kill(). However, -// it is recommended for portability that you use pthread_kill() instead. -#ifdef _WIN32 -// On Windows, process id and thread id are of the same type according to the -// return types of GetProcessId() and GetThreadId() are both DWORD, an unsigned -// 32-bit type. -using pid_t = uint32_t; -#endif -pid_t GetTID(); - -// Like GetTID(), but caches the result in thread-local storage in order -// to avoid unnecessary system calls. Note that there are some cases where -// one must call through to GetTID directly, which is why this exists as a -// separate function. For example, GetCachedTID() is not safe to call in -// an asynchronous signal-handling context nor right after a call to fork(). -pid_t GetCachedTID(); - -} // namespace base_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_BASE_INTERNAL_SYSINFO_H_ diff --git a/src/third_party/abseil-cpp/absl/base/internal/sysinfo_test.cc b/src/third_party/abseil-cpp/absl/base/internal/sysinfo_test.cc deleted file mode 100644 index f305b6c532..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/sysinfo_test.cc +++ /dev/null @@ -1,88 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/base/internal/sysinfo.h" - -#ifndef _WIN32 -#include -#include -#endif - -#include // NOLINT(build/c++11) -#include -#include - -#include "gtest/gtest.h" -#include "absl/synchronization/barrier.h" -#include "absl/synchronization/mutex.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace base_internal { -namespace { - -TEST(SysinfoTest, NumCPUs) { - EXPECT_NE(NumCPUs(), 0) - << "NumCPUs() should not have the default value of 0"; -} - -TEST(SysinfoTest, GetTID) { - EXPECT_EQ(GetTID(), GetTID()); // Basic compile and equality test. -#ifdef __native_client__ - // Native Client has a race condition bug that leads to memory - // exaustion when repeatedly creating and joining threads. - // https://bugs.chromium.org/p/nativeclient/issues/detail?id=1027 - return; -#endif - // Test that TIDs are unique to each thread. - // Uses a few loops to exercise implementations that reallocate IDs. - for (int i = 0; i < 10; ++i) { - constexpr int kNumThreads = 10; - Barrier all_threads_done(kNumThreads); - std::vector threads; - - Mutex mutex; - std::unordered_set tids; - - for (int j = 0; j < kNumThreads; ++j) { - threads.push_back(std::thread([&]() { - pid_t id = GetTID(); - { - MutexLock lock(&mutex); - ASSERT_TRUE(tids.find(id) == tids.end()); - tids.insert(id); - } - // We can't simply join the threads here. The threads need to - // be alive otherwise the TID might have been reallocated to - // another live thread. - all_threads_done.Block(); - })); - } - for (auto& thread : threads) { - thread.join(); - } - } -} - -#ifdef __linux__ -TEST(SysinfoTest, LinuxGetTID) { - // On Linux, for the main thread, GetTID()==getpid() is guaranteed by the API. - EXPECT_EQ(GetTID(), getpid()); -} -#endif - -} // namespace -} // namespace base_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/src/third_party/abseil-cpp/absl/base/internal/thread_annotations.h b/src/third_party/abseil-cpp/absl/base/internal/thread_annotations.h deleted file mode 100644 index 8c5c67e0df..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/thread_annotations.h +++ /dev/null @@ -1,280 +0,0 @@ -// Copyright 2019 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// ----------------------------------------------------------------------------- -// File: thread_annotations.h -// ----------------------------------------------------------------------------- -// -// WARNING: This is a backwards compatible header and it will be removed after -// the migration to prefixed thread annotations is finished; please include -// "absl/base/thread_annotations.h". -// -// This header file contains macro definitions for thread safety annotations -// that allow developers to document the locking policies of multi-threaded -// code. The annotations can also help program analysis tools to identify -// potential thread safety issues. -// -// These annotations are implemented using compiler attributes. Using the macros -// defined here instead of raw attributes allow for portability and future -// compatibility. -// -// When referring to mutexes in the arguments of the attributes, you should -// use variable names or more complex expressions (e.g. my_object->mutex_) -// that evaluate to a concrete mutex object whenever possible. If the mutex -// you want to refer to is not in scope, you may use a member pointer -// (e.g. &MyClass::mutex_) to refer to a mutex in some (unknown) object. - -#ifndef ABSL_BASE_INTERNAL_THREAD_ANNOTATIONS_H_ -#define ABSL_BASE_INTERNAL_THREAD_ANNOTATIONS_H_ - -// ABSL_LEGACY_THREAD_ANNOTATIONS is a *temporary* compatibility macro that can -// be defined on the compile command-line to restore the legacy spellings of the -// thread annotations macros/functions. The macros in this file are available -// under ABSL_ prefixed spellings in absl/base/thread_annotations.h. This macro -// and the legacy spellings will be removed in the future. -#ifdef ABSL_LEGACY_THREAD_ANNOTATIONS - -#if defined(__clang__) -#define THREAD_ANNOTATION_ATTRIBUTE__(x) __attribute__((x)) -#else -#define THREAD_ANNOTATION_ATTRIBUTE__(x) // no-op -#endif - -// GUARDED_BY() -// -// Documents if a shared field or global variable needs to be protected by a -// mutex. GUARDED_BY() allows the user to specify a particular mutex that -// should be held when accessing the annotated variable. -// -// Although this annotation (and PT_GUARDED_BY, below) cannot be applied to -// local variables, a local variable and its associated mutex can often be -// combined into a small class or struct, thereby allowing the annotation. -// -// Example: -// -// class Foo { -// Mutex mu_; -// int p1_ GUARDED_BY(mu_); -// ... -// }; -#define GUARDED_BY(x) THREAD_ANNOTATION_ATTRIBUTE__(guarded_by(x)) - -// PT_GUARDED_BY() -// -// Documents if the memory location pointed to by a pointer should be guarded -// by a mutex when dereferencing the pointer. -// -// Example: -// class Foo { -// Mutex mu_; -// int *p1_ PT_GUARDED_BY(mu_); -// ... -// }; -// -// Note that a pointer variable to a shared memory location could itself be a -// shared variable. -// -// Example: -// -// // `q_`, guarded by `mu1_`, points to a shared memory location that is -// // guarded by `mu2_`: -// int *q_ GUARDED_BY(mu1_) PT_GUARDED_BY(mu2_); -#define PT_GUARDED_BY(x) THREAD_ANNOTATION_ATTRIBUTE__(pt_guarded_by(x)) - -// ACQUIRED_AFTER() / ACQUIRED_BEFORE() -// -// Documents the acquisition order between locks that can be held -// simultaneously by a thread. For any two locks that need to be annotated -// to establish an acquisition order, only one of them needs the annotation. -// (i.e. You don't have to annotate both locks with both ACQUIRED_AFTER -// and ACQUIRED_BEFORE.) -// -// As with GUARDED_BY, this is only applicable to mutexes that are shared -// fields or global variables. -// -// Example: -// -// Mutex m1_; -// Mutex m2_ ACQUIRED_AFTER(m1_); -#define ACQUIRED_AFTER(...) \ - THREAD_ANNOTATION_ATTRIBUTE__(acquired_after(__VA_ARGS__)) - -#define ACQUIRED_BEFORE(...) \ - THREAD_ANNOTATION_ATTRIBUTE__(acquired_before(__VA_ARGS__)) - -// EXCLUSIVE_LOCKS_REQUIRED() / SHARED_LOCKS_REQUIRED() -// -// Documents a function that expects a mutex to be held prior to entry. -// The mutex is expected to be held both on entry to, and exit from, the -// function. -// -// An exclusive lock allows read-write access to the guarded data member(s), and -// only one thread can acquire a lock exclusively at any one time. A shared lock -// allows read-only access, and any number of threads can acquire a shared lock -// concurrently. -// -// Generally, non-const methods should be annotated with -// EXCLUSIVE_LOCKS_REQUIRED, while const methods should be annotated with -// SHARED_LOCKS_REQUIRED. -// -// Example: -// -// Mutex mu1, mu2; -// int a GUARDED_BY(mu1); -// int b GUARDED_BY(mu2); -// -// void foo() EXCLUSIVE_LOCKS_REQUIRED(mu1, mu2) { ... } -// void bar() const SHARED_LOCKS_REQUIRED(mu1, mu2) { ... } -#define EXCLUSIVE_LOCKS_REQUIRED(...) \ - THREAD_ANNOTATION_ATTRIBUTE__(exclusive_locks_required(__VA_ARGS__)) - -#define SHARED_LOCKS_REQUIRED(...) \ - THREAD_ANNOTATION_ATTRIBUTE__(shared_locks_required(__VA_ARGS__)) - -// LOCKS_EXCLUDED() -// -// Documents the locks acquired in the body of the function. These locks -// cannot be held when calling this function (as Abseil's `Mutex` locks are -// non-reentrant). -#define LOCKS_EXCLUDED(...) \ - THREAD_ANNOTATION_ATTRIBUTE__(locks_excluded(__VA_ARGS__)) - -// LOCK_RETURNED() -// -// Documents a function that returns a mutex without acquiring it. For example, -// a public getter method that returns a pointer to a private mutex should -// be annotated with LOCK_RETURNED. -#define LOCK_RETURNED(x) \ - THREAD_ANNOTATION_ATTRIBUTE__(lock_returned(x)) - -// LOCKABLE -// -// Documents if a class/type is a lockable type (such as the `Mutex` class). -#define LOCKABLE \ - THREAD_ANNOTATION_ATTRIBUTE__(lockable) - -// SCOPED_LOCKABLE -// -// Documents if a class does RAII locking (such as the `MutexLock` class). -// The constructor should use `LOCK_FUNCTION()` to specify the mutex that is -// acquired, and the destructor should use `UNLOCK_FUNCTION()` with no -// arguments; the analysis will assume that the destructor unlocks whatever the -// constructor locked. -#define SCOPED_LOCKABLE \ - THREAD_ANNOTATION_ATTRIBUTE__(scoped_lockable) - -// EXCLUSIVE_LOCK_FUNCTION() -// -// Documents functions that acquire a lock in the body of a function, and do -// not release it. -#define EXCLUSIVE_LOCK_FUNCTION(...) \ - THREAD_ANNOTATION_ATTRIBUTE__(exclusive_lock_function(__VA_ARGS__)) - -// SHARED_LOCK_FUNCTION() -// -// Documents functions that acquire a shared (reader) lock in the body of a -// function, and do not release it. -#define SHARED_LOCK_FUNCTION(...) \ - THREAD_ANNOTATION_ATTRIBUTE__(shared_lock_function(__VA_ARGS__)) - -// UNLOCK_FUNCTION() -// -// Documents functions that expect a lock to be held on entry to the function, -// and release it in the body of the function. -#define UNLOCK_FUNCTION(...) \ - THREAD_ANNOTATION_ATTRIBUTE__(unlock_function(__VA_ARGS__)) - -// EXCLUSIVE_TRYLOCK_FUNCTION() / SHARED_TRYLOCK_FUNCTION() -// -// Documents functions that try to acquire a lock, and return success or failure -// (or a non-boolean value that can be interpreted as a boolean). -// The first argument should be `true` for functions that return `true` on -// success, or `false` for functions that return `false` on success. The second -// argument specifies the mutex that is locked on success. If unspecified, this -// mutex is assumed to be `this`. -#define EXCLUSIVE_TRYLOCK_FUNCTION(...) \ - THREAD_ANNOTATION_ATTRIBUTE__(exclusive_trylock_function(__VA_ARGS__)) - -#define SHARED_TRYLOCK_FUNCTION(...) \ - THREAD_ANNOTATION_ATTRIBUTE__(shared_trylock_function(__VA_ARGS__)) - -// ASSERT_EXCLUSIVE_LOCK() / ASSERT_SHARED_LOCK() -// -// Documents functions that dynamically check to see if a lock is held, and fail -// if it is not held. -#define ASSERT_EXCLUSIVE_LOCK(...) \ - THREAD_ANNOTATION_ATTRIBUTE__(assert_exclusive_lock(__VA_ARGS__)) - -#define ASSERT_SHARED_LOCK(...) \ - THREAD_ANNOTATION_ATTRIBUTE__(assert_shared_lock(__VA_ARGS__)) - -// NO_THREAD_SAFETY_ANALYSIS -// -// Turns off thread safety checking within the body of a particular function. -// This annotation is used to mark functions that are known to be correct, but -// the locking behavior is more complicated than the analyzer can handle. -#define NO_THREAD_SAFETY_ANALYSIS \ - THREAD_ANNOTATION_ATTRIBUTE__(no_thread_safety_analysis) - -//------------------------------------------------------------------------------ -// Tool-Supplied Annotations -//------------------------------------------------------------------------------ - -// TS_UNCHECKED should be placed around lock expressions that are not valid -// C++ syntax, but which are present for documentation purposes. These -// annotations will be ignored by the analysis. -#define TS_UNCHECKED(x) "" - -// TS_FIXME is used to mark lock expressions that are not valid C++ syntax. -// It is used by automated tools to mark and disable invalid expressions. -// The annotation should either be fixed, or changed to TS_UNCHECKED. -#define TS_FIXME(x) "" - -// Like NO_THREAD_SAFETY_ANALYSIS, this turns off checking within the body of -// a particular function. However, this attribute is used to mark functions -// that are incorrect and need to be fixed. It is used by automated tools to -// avoid breaking the build when the analysis is updated. -// Code owners are expected to eventually fix the routine. -#define NO_THREAD_SAFETY_ANALYSIS_FIXME NO_THREAD_SAFETY_ANALYSIS - -// Similar to NO_THREAD_SAFETY_ANALYSIS_FIXME, this macro marks a GUARDED_BY -// annotation that needs to be fixed, because it is producing thread safety -// warning. It disables the GUARDED_BY. -#define GUARDED_BY_FIXME(x) - -// Disables warnings for a single read operation. This can be used to avoid -// warnings when it is known that the read is not actually involved in a race, -// but the compiler cannot confirm that. -#define TS_UNCHECKED_READ(x) thread_safety_analysis::ts_unchecked_read(x) - - -namespace thread_safety_analysis { - -// Takes a reference to a guarded data member, and returns an unguarded -// reference. -template -inline const T& ts_unchecked_read(const T& v) NO_THREAD_SAFETY_ANALYSIS { - return v; -} - -template -inline T& ts_unchecked_read(T& v) NO_THREAD_SAFETY_ANALYSIS { - return v; -} - -} // namespace thread_safety_analysis - -#endif // defined(ABSL_LEGACY_THREAD_ANNOTATIONS) - -#endif // ABSL_BASE_INTERNAL_THREAD_ANNOTATIONS_H_ diff --git a/src/third_party/abseil-cpp/absl/base/internal/thread_identity.cc b/src/third_party/abseil-cpp/absl/base/internal/thread_identity.cc deleted file mode 100644 index 79853f09f5..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/thread_identity.cc +++ /dev/null @@ -1,156 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/base/internal/thread_identity.h" - -#if !defined(_WIN32) || defined(__MINGW32__) -#include -#include -#endif - -#include -#include -#include - -#include "absl/base/attributes.h" -#include "absl/base/call_once.h" -#include "absl/base/internal/raw_logging.h" -#include "absl/base/internal/spinlock.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace base_internal { - -#if ABSL_THREAD_IDENTITY_MODE != ABSL_THREAD_IDENTITY_MODE_USE_CPP11 -namespace { -// Used to co-ordinate one-time creation of our pthread_key -absl::once_flag init_thread_identity_key_once; -pthread_key_t thread_identity_pthread_key; -std::atomic pthread_key_initialized(false); - -void AllocateThreadIdentityKey(ThreadIdentityReclaimerFunction reclaimer) { - pthread_key_create(&thread_identity_pthread_key, reclaimer); - pthread_key_initialized.store(true, std::memory_order_release); -} -} // namespace -#endif - -#if ABSL_THREAD_IDENTITY_MODE == ABSL_THREAD_IDENTITY_MODE_USE_TLS || \ - ABSL_THREAD_IDENTITY_MODE == ABSL_THREAD_IDENTITY_MODE_USE_CPP11 -// The actual TLS storage for a thread's currently associated ThreadIdentity. -// This is referenced by inline accessors in the header. -// "protected" visibility ensures that if multiple instances of Abseil code -// exist within a process (via dlopen() or similar), references to -// thread_identity_ptr from each instance of the code will refer to -// *different* instances of this ptr. -// Apple platforms have the visibility attribute, but issue a compile warning -// that protected visibility is unsupported. -ABSL_CONST_INIT // Must come before __attribute__((visibility("protected"))) -#if ABSL_HAVE_ATTRIBUTE(visibility) && !defined(__APPLE__) -__attribute__((visibility("protected"))) -#endif // ABSL_HAVE_ATTRIBUTE(visibility) && !defined(__APPLE__) -#if ABSL_PER_THREAD_TLS -// Prefer __thread to thread_local as benchmarks indicate it is a bit faster. -ABSL_PER_THREAD_TLS_KEYWORD ThreadIdentity* thread_identity_ptr = nullptr; -#elif defined(ABSL_HAVE_THREAD_LOCAL) -thread_local ThreadIdentity* thread_identity_ptr = nullptr; -#endif // ABSL_PER_THREAD_TLS -#endif // TLS or CPP11 - -void SetCurrentThreadIdentity( - ThreadIdentity* identity, ThreadIdentityReclaimerFunction reclaimer) { - assert(CurrentThreadIdentityIfPresent() == nullptr); - // Associate our destructor. - // NOTE: This call to pthread_setspecific is currently the only immovable - // barrier to CurrentThreadIdentity() always being async signal safe. -#if ABSL_THREAD_IDENTITY_MODE == ABSL_THREAD_IDENTITY_MODE_USE_POSIX_SETSPECIFIC - // NOTE: Not async-safe. But can be open-coded. - absl::call_once(init_thread_identity_key_once, AllocateThreadIdentityKey, - reclaimer); - -#if defined(__EMSCRIPTEN__) || defined(__MINGW32__) - // Emscripten and MinGW pthread implementations does not support signals. - // See https://kripken.github.io/emscripten-site/docs/porting/pthreads.html - // for more information. - pthread_setspecific(thread_identity_pthread_key, - reinterpret_cast(identity)); -#else - // We must mask signals around the call to setspecific as with current glibc, - // a concurrent getspecific (needed for GetCurrentThreadIdentityIfPresent()) - // may zero our value. - // - // While not officially async-signal safe, getspecific within a signal handler - // is otherwise OK. - sigset_t all_signals; - sigset_t curr_signals; - sigfillset(&all_signals); - pthread_sigmask(SIG_SETMASK, &all_signals, &curr_signals); - pthread_setspecific(thread_identity_pthread_key, - reinterpret_cast(identity)); - pthread_sigmask(SIG_SETMASK, &curr_signals, nullptr); -#endif // !__EMSCRIPTEN__ && !__MINGW32__ - -#elif ABSL_THREAD_IDENTITY_MODE == ABSL_THREAD_IDENTITY_MODE_USE_TLS - // NOTE: Not async-safe. But can be open-coded. - absl::call_once(init_thread_identity_key_once, AllocateThreadIdentityKey, - reclaimer); - pthread_setspecific(thread_identity_pthread_key, - reinterpret_cast(identity)); - thread_identity_ptr = identity; -#elif ABSL_THREAD_IDENTITY_MODE == ABSL_THREAD_IDENTITY_MODE_USE_CPP11 - thread_local std::unique_ptr - holder(identity, reclaimer); - thread_identity_ptr = identity; -#else -#error Unimplemented ABSL_THREAD_IDENTITY_MODE -#endif -} - -#if ABSL_THREAD_IDENTITY_MODE == ABSL_THREAD_IDENTITY_MODE_USE_TLS || \ - ABSL_THREAD_IDENTITY_MODE == ABSL_THREAD_IDENTITY_MODE_USE_CPP11 - -// Please see the comment on `CurrentThreadIdentityIfPresent` in -// thread_identity.h. When we cannot expose thread_local variables in -// headers, we opt for the correct-but-slower option of not inlining this -// function. -#ifndef ABSL_INTERNAL_INLINE_CURRENT_THREAD_IDENTITY_IF_PRESENT -ThreadIdentity* CurrentThreadIdentityIfPresent() { return thread_identity_ptr; } -#endif -#endif - -void ClearCurrentThreadIdentity() { -#if ABSL_THREAD_IDENTITY_MODE == ABSL_THREAD_IDENTITY_MODE_USE_TLS || \ - ABSL_THREAD_IDENTITY_MODE == ABSL_THREAD_IDENTITY_MODE_USE_CPP11 - thread_identity_ptr = nullptr; -#elif ABSL_THREAD_IDENTITY_MODE == \ - ABSL_THREAD_IDENTITY_MODE_USE_POSIX_SETSPECIFIC - // pthread_setspecific expected to clear value on destruction - assert(CurrentThreadIdentityIfPresent() == nullptr); -#endif -} - -#if ABSL_THREAD_IDENTITY_MODE == ABSL_THREAD_IDENTITY_MODE_USE_POSIX_SETSPECIFIC -ThreadIdentity* CurrentThreadIdentityIfPresent() { - bool initialized = pthread_key_initialized.load(std::memory_order_acquire); - if (!initialized) { - return nullptr; - } - return reinterpret_cast( - pthread_getspecific(thread_identity_pthread_key)); -} -#endif - -} // namespace base_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/src/third_party/abseil-cpp/absl/base/internal/thread_identity.h b/src/third_party/abseil-cpp/absl/base/internal/thread_identity.h deleted file mode 100644 index 463acbc74e..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/thread_identity.h +++ /dev/null @@ -1,269 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// Each active thread has an ThreadIdentity that may represent the thread in -// various level interfaces. ThreadIdentity objects are never deallocated. -// When a thread terminates, its ThreadIdentity object may be reused for a -// thread created later. - -#ifndef ABSL_BASE_INTERNAL_THREAD_IDENTITY_H_ -#define ABSL_BASE_INTERNAL_THREAD_IDENTITY_H_ - -#ifndef _WIN32 -#include -// Defines __GOOGLE_GRTE_VERSION__ (via glibc-specific features.h) when -// supported. -#include -#endif - -#include -#include - -#include "absl/base/config.h" -#include "absl/base/internal/per_thread_tls.h" -#include "absl/base/optimization.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN - -struct SynchLocksHeld; -struct SynchWaitParams; - -namespace base_internal { - -class SpinLock; -struct ThreadIdentity; - -// Used by the implementation of absl::Mutex and absl::CondVar. -struct PerThreadSynch { - // The internal representation of absl::Mutex and absl::CondVar rely - // on the alignment of PerThreadSynch. Both store the address of the - // PerThreadSynch in the high-order bits of their internal state, - // which means the low kLowZeroBits of the address of PerThreadSynch - // must be zero. - static constexpr int kLowZeroBits = 8; - static constexpr int kAlignment = 1 << kLowZeroBits; - - // Returns the associated ThreadIdentity. - // This can be implemented as a cast because we guarantee - // PerThreadSynch is the first element of ThreadIdentity. - ThreadIdentity* thread_identity() { - return reinterpret_cast(this); - } - - PerThreadSynch *next; // Circular waiter queue; initialized to 0. - PerThreadSynch *skip; // If non-zero, all entries in Mutex queue - // up to and including "skip" have same - // condition as this, and will be woken later - bool may_skip; // if false while on mutex queue, a mutex unlocker - // is using this PerThreadSynch as a terminator. Its - // skip field must not be filled in because the loop - // might then skip over the terminator. - bool wake; // This thread is to be woken from a Mutex. - // If "x" is on a waiter list for a mutex, "x->cond_waiter" is true iff the - // waiter is waiting on the mutex as part of a CV Wait or Mutex Await. - // - // The value of "x->cond_waiter" is meaningless if "x" is not on a - // Mutex waiter list. - bool cond_waiter; - bool maybe_unlocking; // Valid at head of Mutex waiter queue; - // true if UnlockSlow could be searching - // for a waiter to wake. Used for an optimization - // in Enqueue(). true is always a valid value. - // Can be reset to false when the unlocker or any - // writer releases the lock, or a reader fully - // releases the lock. It may not be set to false - // by a reader that decrements the count to - // non-zero. protected by mutex spinlock - bool suppress_fatal_errors; // If true, try to proceed even in the face - // of broken invariants. This is used within - // fatal signal handlers to improve the - // chances of debug logging information being - // output successfully. - int priority; // Priority of thread (updated every so often). - - // State values: - // kAvailable: This PerThreadSynch is available. - // kQueued: This PerThreadSynch is unavailable, it's currently queued on a - // Mutex or CondVar waistlist. - // - // Transitions from kQueued to kAvailable require a release - // barrier. This is needed as a waiter may use "state" to - // independently observe that it's no longer queued. - // - // Transitions from kAvailable to kQueued require no barrier, they - // are externally ordered by the Mutex. - enum State { - kAvailable, - kQueued - }; - std::atomic state; - - // The wait parameters of the current wait. waitp is null if the - // thread is not waiting. Transitions from null to non-null must - // occur before the enqueue commit point (state = kQueued in - // Enqueue() and CondVarEnqueue()). Transitions from non-null to - // null must occur after the wait is finished (state = kAvailable in - // Mutex::Block() and CondVar::WaitCommon()). This field may be - // changed only by the thread that describes this PerThreadSynch. A - // special case is Fer(), which calls Enqueue() on another thread, - // but with an identical SynchWaitParams pointer, thus leaving the - // pointer unchanged. - SynchWaitParams* waitp; - - intptr_t readers; // Number of readers in mutex. - - // When priority will next be read (cycles). - int64_t next_priority_read_cycles; - - // Locks held; used during deadlock detection. - // Allocated in Synch_GetAllLocks() and freed in ReclaimThreadIdentity(). - SynchLocksHeld *all_locks; -}; - -// The instances of this class are allocated in NewThreadIdentity() with an -// alignment of PerThreadSynch::kAlignment. -// -// NOTE: The layout of fields in this structure is critical, please do not -// add, remove, or modify the field placements without fully auditing the -// layout. -struct ThreadIdentity { - // Must be the first member. The Mutex implementation requires that - // the PerThreadSynch object associated with each thread is - // PerThreadSynch::kAlignment aligned. We provide this alignment on - // ThreadIdentity itself. - PerThreadSynch per_thread_synch; - - // Private: Reserved for absl::synchronization_internal::Waiter. - struct WaiterState { - alignas(void*) char data[128]; - } waiter_state; - - // Used by PerThreadSem::{Get,Set}ThreadBlockedCounter(). - std::atomic* blocked_count_ptr; - - // The following variables are mostly read/written just by the - // thread itself. The only exception is that these are read by - // a ticker thread as a hint. - std::atomic ticker; // Tick counter, incremented once per second. - std::atomic wait_start; // Ticker value when thread started waiting. - std::atomic is_idle; // Has thread become idle yet? - - ThreadIdentity* next; -}; - -// Returns the ThreadIdentity object representing the calling thread; guaranteed -// to be unique for its lifetime. The returned object will remain valid for the -// program's lifetime; although it may be re-assigned to a subsequent thread. -// If one does not exist, return nullptr instead. -// -// Does not malloc(*), and is async-signal safe. -// [*] Technically pthread_setspecific() does malloc on first use; however this -// is handled internally within tcmalloc's initialization already. -// -// New ThreadIdentity objects can be constructed and associated with a thread -// by calling GetOrCreateCurrentThreadIdentity() in per-thread-sem.h. -ThreadIdentity* CurrentThreadIdentityIfPresent(); - -using ThreadIdentityReclaimerFunction = void (*)(void*); - -// Sets the current thread identity to the given value. 'reclaimer' is a -// pointer to the global function for cleaning up instances on thread -// destruction. -void SetCurrentThreadIdentity(ThreadIdentity* identity, - ThreadIdentityReclaimerFunction reclaimer); - -// Removes the currently associated ThreadIdentity from the running thread. -// This must be called from inside the ThreadIdentityReclaimerFunction, and only -// from that function. -void ClearCurrentThreadIdentity(); - -// May be chosen at compile time via: -DABSL_FORCE_THREAD_IDENTITY_MODE= -#ifdef ABSL_THREAD_IDENTITY_MODE_USE_POSIX_SETSPECIFIC -#error ABSL_THREAD_IDENTITY_MODE_USE_POSIX_SETSPECIFIC cannot be directly set -#else -#define ABSL_THREAD_IDENTITY_MODE_USE_POSIX_SETSPECIFIC 0 -#endif - -#ifdef ABSL_THREAD_IDENTITY_MODE_USE_TLS -#error ABSL_THREAD_IDENTITY_MODE_USE_TLS cannot be directly set -#else -#define ABSL_THREAD_IDENTITY_MODE_USE_TLS 1 -#endif - -#ifdef ABSL_THREAD_IDENTITY_MODE_USE_CPP11 -#error ABSL_THREAD_IDENTITY_MODE_USE_CPP11 cannot be directly set -#else -#define ABSL_THREAD_IDENTITY_MODE_USE_CPP11 2 -#endif - -#ifdef ABSL_THREAD_IDENTITY_MODE -#error ABSL_THREAD_IDENTITY_MODE cannot be directly set -#elif defined(ABSL_FORCE_THREAD_IDENTITY_MODE) -#define ABSL_THREAD_IDENTITY_MODE ABSL_FORCE_THREAD_IDENTITY_MODE -#elif defined(_WIN32) && !defined(__MINGW32__) -#define ABSL_THREAD_IDENTITY_MODE ABSL_THREAD_IDENTITY_MODE_USE_CPP11 -#elif defined(__APPLE__) && defined(ABSL_HAVE_THREAD_LOCAL) -#define ABSL_THREAD_IDENTITY_MODE ABSL_THREAD_IDENTITY_MODE_USE_CPP11 -#elif ABSL_PER_THREAD_TLS && defined(__GOOGLE_GRTE_VERSION__) && \ - (__GOOGLE_GRTE_VERSION__ >= 20140228L) -// Support for async-safe TLS was specifically added in GRTEv4. It's not -// present in the upstream eglibc. -// Note: Current default for production systems. -#define ABSL_THREAD_IDENTITY_MODE ABSL_THREAD_IDENTITY_MODE_USE_TLS -#else -#define ABSL_THREAD_IDENTITY_MODE \ - ABSL_THREAD_IDENTITY_MODE_USE_POSIX_SETSPECIFIC -#endif - -#if ABSL_THREAD_IDENTITY_MODE == ABSL_THREAD_IDENTITY_MODE_USE_TLS || \ - ABSL_THREAD_IDENTITY_MODE == ABSL_THREAD_IDENTITY_MODE_USE_CPP11 - -#if ABSL_PER_THREAD_TLS -ABSL_CONST_INIT extern ABSL_PER_THREAD_TLS_KEYWORD ThreadIdentity* - thread_identity_ptr; -#elif defined(ABSL_HAVE_THREAD_LOCAL) -ABSL_CONST_INIT extern thread_local ThreadIdentity* thread_identity_ptr; -#else -#error Thread-local storage not detected on this platform -#endif - -// thread_local variables cannot be in headers exposed by DLLs or in certain -// build configurations on Apple platforms. However, it is important for -// performance reasons in general that `CurrentThreadIdentityIfPresent` be -// inlined. In the other cases we opt to have the function not be inlined. Note -// that `CurrentThreadIdentityIfPresent` is declared above so we can exclude -// this entire inline definition. -#if !defined(__APPLE__) && !defined(ABSL_BUILD_DLL) && \ - !defined(ABSL_CONSUME_DLL) -#define ABSL_INTERNAL_INLINE_CURRENT_THREAD_IDENTITY_IF_PRESENT 1 -#endif - -#ifdef ABSL_INTERNAL_INLINE_CURRENT_THREAD_IDENTITY_IF_PRESENT -inline ThreadIdentity* CurrentThreadIdentityIfPresent() { - return thread_identity_ptr; -} -#endif - -#elif ABSL_THREAD_IDENTITY_MODE != \ - ABSL_THREAD_IDENTITY_MODE_USE_POSIX_SETSPECIFIC -#error Unknown ABSL_THREAD_IDENTITY_MODE -#endif - -} // namespace base_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_BASE_INTERNAL_THREAD_IDENTITY_H_ diff --git a/src/third_party/abseil-cpp/absl/base/internal/thread_identity_benchmark.cc b/src/third_party/abseil-cpp/absl/base/internal/thread_identity_benchmark.cc deleted file mode 100644 index 0ae10f2b1e..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/thread_identity_benchmark.cc +++ /dev/null @@ -1,38 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "benchmark/benchmark.h" -#include "absl/base/internal/thread_identity.h" -#include "absl/synchronization/internal/create_thread_identity.h" -#include "absl/synchronization/internal/per_thread_sem.h" - -namespace { - -void BM_SafeCurrentThreadIdentity(benchmark::State& state) { - for (auto _ : state) { - benchmark::DoNotOptimize( - absl::synchronization_internal::GetOrCreateCurrentThreadIdentity()); - } -} -BENCHMARK(BM_SafeCurrentThreadIdentity); - -void BM_UnsafeCurrentThreadIdentity(benchmark::State& state) { - for (auto _ : state) { - benchmark::DoNotOptimize( - absl::base_internal::CurrentThreadIdentityIfPresent()); - } -} -BENCHMARK(BM_UnsafeCurrentThreadIdentity); - -} // namespace diff --git a/src/third_party/abseil-cpp/absl/base/internal/thread_identity_test.cc b/src/third_party/abseil-cpp/absl/base/internal/thread_identity_test.cc deleted file mode 100644 index 46a6f74346..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/thread_identity_test.cc +++ /dev/null @@ -1,129 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/base/internal/thread_identity.h" - -#include // NOLINT(build/c++11) -#include - -#include "gtest/gtest.h" -#include "absl/base/attributes.h" -#include "absl/base/internal/spinlock.h" -#include "absl/base/macros.h" -#include "absl/base/thread_annotations.h" -#include "absl/synchronization/internal/per_thread_sem.h" -#include "absl/synchronization/mutex.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace base_internal { -namespace { - -ABSL_CONST_INIT static absl::base_internal::SpinLock map_lock( - absl::kConstInit, base_internal::SCHEDULE_KERNEL_ONLY); -ABSL_CONST_INIT static int num_identities_reused ABSL_GUARDED_BY(map_lock); - -static const void* const kCheckNoIdentity = reinterpret_cast(1); - -static void TestThreadIdentityCurrent(const void* assert_no_identity) { - ThreadIdentity* identity; - - // We have to test this conditionally, because if the test framework relies - // on Abseil, then some previous action may have already allocated an - // identity. - if (assert_no_identity == kCheckNoIdentity) { - identity = CurrentThreadIdentityIfPresent(); - EXPECT_TRUE(identity == nullptr); - } - - identity = synchronization_internal::GetOrCreateCurrentThreadIdentity(); - EXPECT_TRUE(identity != nullptr); - ThreadIdentity* identity_no_init; - identity_no_init = CurrentThreadIdentityIfPresent(); - EXPECT_TRUE(identity == identity_no_init); - - // Check that per_thread_synch is correctly aligned. - EXPECT_EQ(0, reinterpret_cast(&identity->per_thread_synch) % - PerThreadSynch::kAlignment); - EXPECT_EQ(identity, identity->per_thread_synch.thread_identity()); - - absl::base_internal::SpinLockHolder l(&map_lock); - num_identities_reused++; -} - -TEST(ThreadIdentityTest, BasicIdentityWorks) { - // This tests for the main() thread. - TestThreadIdentityCurrent(nullptr); -} - -TEST(ThreadIdentityTest, BasicIdentityWorksThreaded) { - // Now try the same basic test with multiple threads being created and - // destroyed. This makes sure that: - // - New threads are created without a ThreadIdentity. - // - We re-allocate ThreadIdentity objects from the free-list. - // - If a thread implementation chooses to recycle threads, that - // correct re-initialization occurs. - static const int kNumLoops = 3; - static const int kNumThreads = 32; - for (int iter = 0; iter < kNumLoops; iter++) { - std::vector threads; - for (int i = 0; i < kNumThreads; ++i) { - threads.push_back( - std::thread(TestThreadIdentityCurrent, kCheckNoIdentity)); - } - for (auto& thread : threads) { - thread.join(); - } - } - - // We should have recycled ThreadIdentity objects above; while (external) - // library threads allocating their own identities may preclude some - // reuse, we should have sufficient repetitions to exclude this. - absl::base_internal::SpinLockHolder l(&map_lock); - EXPECT_LT(kNumThreads, num_identities_reused); -} - -TEST(ThreadIdentityTest, ReusedThreadIdentityMutexTest) { - // This test repeatly creates and joins a series of threads, each of - // which acquires and releases shared Mutex locks. This verifies - // Mutex operations work correctly under a reused - // ThreadIdentity. Note that the most likely failure mode of this - // test is a crash or deadlock. - static const int kNumLoops = 10; - static const int kNumThreads = 12; - static const int kNumMutexes = 3; - static const int kNumLockLoops = 5; - - Mutex mutexes[kNumMutexes]; - for (int iter = 0; iter < kNumLoops; ++iter) { - std::vector threads; - for (int thread = 0; thread < kNumThreads; ++thread) { - threads.push_back(std::thread([&]() { - for (int l = 0; l < kNumLockLoops; ++l) { - for (int m = 0; m < kNumMutexes; ++m) { - MutexLock lock(&mutexes[m]); - } - } - })); - } - for (auto& thread : threads) { - thread.join(); - } - } -} - -} // namespace -} // namespace base_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/src/third_party/abseil-cpp/absl/base/internal/throw_delegate.cc b/src/third_party/abseil-cpp/absl/base/internal/throw_delegate.cc deleted file mode 100644 index c260ff1eed..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/throw_delegate.cc +++ /dev/null @@ -1,212 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/base/internal/throw_delegate.h" - -#include -#include -#include -#include - -#include "absl/base/config.h" -#include "absl/base/internal/raw_logging.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace base_internal { - -// NOTE: The various STL exception throwing functions are placed within the -// #ifdef blocks so the symbols aren't exposed on platforms that don't support -// them, such as the Android NDK. For example, ANGLE fails to link when building -// within AOSP without them, since the STL functions don't exist. -namespace { -#ifdef ABSL_HAVE_EXCEPTIONS -template -[[noreturn]] void Throw(const T& error) { - throw error; -} -#endif -} // namespace - -void ThrowStdLogicError(const std::string& what_arg) { -#ifdef ABSL_HAVE_EXCEPTIONS - Throw(std::logic_error(what_arg)); -#else - ABSL_RAW_LOG(FATAL, "%s", what_arg.c_str()); - std::abort(); -#endif -} -void ThrowStdLogicError(const char* what_arg) { -#ifdef ABSL_HAVE_EXCEPTIONS - Throw(std::logic_error(what_arg)); -#else - ABSL_RAW_LOG(FATAL, "%s", what_arg); - std::abort(); -#endif -} -void ThrowStdInvalidArgument(const std::string& what_arg) { -#ifdef ABSL_HAVE_EXCEPTIONS - Throw(std::invalid_argument(what_arg)); -#else - ABSL_RAW_LOG(FATAL, "%s", what_arg.c_str()); - std::abort(); -#endif -} -void ThrowStdInvalidArgument(const char* what_arg) { -#ifdef ABSL_HAVE_EXCEPTIONS - Throw(std::invalid_argument(what_arg)); -#else - ABSL_RAW_LOG(FATAL, "%s", what_arg); - std::abort(); -#endif -} - -void ThrowStdDomainError(const std::string& what_arg) { -#ifdef ABSL_HAVE_EXCEPTIONS - Throw(std::domain_error(what_arg)); -#else - ABSL_RAW_LOG(FATAL, "%s", what_arg.c_str()); - std::abort(); -#endif -} -void ThrowStdDomainError(const char* what_arg) { -#ifdef ABSL_HAVE_EXCEPTIONS - Throw(std::domain_error(what_arg)); -#else - ABSL_RAW_LOG(FATAL, "%s", what_arg); - std::abort(); -#endif -} - -void ThrowStdLengthError(const std::string& what_arg) { -#ifdef ABSL_HAVE_EXCEPTIONS - Throw(std::length_error(what_arg)); -#else - ABSL_RAW_LOG(FATAL, "%s", what_arg.c_str()); - std::abort(); -#endif -} -void ThrowStdLengthError(const char* what_arg) { -#ifdef ABSL_HAVE_EXCEPTIONS - Throw(std::length_error(what_arg)); -#else - ABSL_RAW_LOG(FATAL, "%s", what_arg); - std::abort(); -#endif -} - -void ThrowStdOutOfRange(const std::string& what_arg) { -#ifdef ABSL_HAVE_EXCEPTIONS - Throw(std::out_of_range(what_arg)); -#else - ABSL_RAW_LOG(FATAL, "%s", what_arg.c_str()); - std::abort(); -#endif -} -void ThrowStdOutOfRange(const char* what_arg) { -#ifdef ABSL_HAVE_EXCEPTIONS - Throw(std::out_of_range(what_arg)); -#else - ABSL_RAW_LOG(FATAL, "%s", what_arg); - std::abort(); -#endif -} - -void ThrowStdRuntimeError(const std::string& what_arg) { -#ifdef ABSL_HAVE_EXCEPTIONS - Throw(std::runtime_error(what_arg)); -#else - ABSL_RAW_LOG(FATAL, "%s", what_arg.c_str()); - std::abort(); -#endif -} -void ThrowStdRuntimeError(const char* what_arg) { -#ifdef ABSL_HAVE_EXCEPTIONS - Throw(std::runtime_error(what_arg)); -#else - ABSL_RAW_LOG(FATAL, "%s", what_arg); - std::abort(); -#endif -} - -void ThrowStdRangeError(const std::string& what_arg) { -#ifdef ABSL_HAVE_EXCEPTIONS - Throw(std::range_error(what_arg)); -#else - ABSL_RAW_LOG(FATAL, "%s", what_arg.c_str()); - std::abort(); -#endif -} -void ThrowStdRangeError(const char* what_arg) { -#ifdef ABSL_HAVE_EXCEPTIONS - Throw(std::range_error(what_arg)); -#else - ABSL_RAW_LOG(FATAL, "%s", what_arg); - std::abort(); -#endif -} - -void ThrowStdOverflowError(const std::string& what_arg) { -#ifdef ABSL_HAVE_EXCEPTIONS - Throw(std::overflow_error(what_arg)); -#else - ABSL_RAW_LOG(FATAL, "%s", what_arg.c_str()); - std::abort(); -#endif -} -void ThrowStdOverflowError(const char* what_arg) { -#ifdef ABSL_HAVE_EXCEPTIONS - Throw(std::overflow_error(what_arg)); -#else - ABSL_RAW_LOG(FATAL, "%s", what_arg); - std::abort(); -#endif -} - -void ThrowStdUnderflowError(const std::string& what_arg) { -#ifdef ABSL_HAVE_EXCEPTIONS - Throw(std::underflow_error(what_arg)); -#else - ABSL_RAW_LOG(FATAL, "%s", what_arg.c_str()); - std::abort(); -#endif -} -void ThrowStdUnderflowError(const char* what_arg) { -#ifdef ABSL_HAVE_EXCEPTIONS - Throw(std::underflow_error(what_arg)); -#else - ABSL_RAW_LOG(FATAL, "%s", what_arg); - std::abort(); -#endif -} - -void ThrowStdBadFunctionCall() { -#ifdef ABSL_HAVE_EXCEPTIONS - Throw(std::bad_function_call()); -#else - std::abort(); -#endif -} - -void ThrowStdBadAlloc() { -#ifdef ABSL_HAVE_EXCEPTIONS - Throw(std::bad_alloc()); -#else - std::abort(); -#endif -} - -} // namespace base_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/src/third_party/abseil-cpp/absl/base/internal/throw_delegate.h b/src/third_party/abseil-cpp/absl/base/internal/throw_delegate.h deleted file mode 100644 index 075f527254..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/throw_delegate.h +++ /dev/null @@ -1,75 +0,0 @@ -// -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// - -#ifndef ABSL_BASE_INTERNAL_THROW_DELEGATE_H_ -#define ABSL_BASE_INTERNAL_THROW_DELEGATE_H_ - -#include - -#include "absl/base/config.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace base_internal { - -// Helper functions that allow throwing exceptions consistently from anywhere. -// The main use case is for header-based libraries (eg templates), as they will -// be built by many different targets with their own compiler options. -// In particular, this will allow a safe way to throw exceptions even if the -// caller is compiled with -fno-exceptions. This is intended for implementing -// things like map<>::at(), which the standard documents as throwing an -// exception on error. -// -// Using other techniques like #if tricks could lead to ODR violations. -// -// You shouldn't use it unless you're writing code that you know will be built -// both with and without exceptions and you need to conform to an interface -// that uses exceptions. - -[[noreturn]] void ThrowStdLogicError(const std::string& what_arg); -[[noreturn]] void ThrowStdLogicError(const char* what_arg); -[[noreturn]] void ThrowStdInvalidArgument(const std::string& what_arg); -[[noreturn]] void ThrowStdInvalidArgument(const char* what_arg); -[[noreturn]] void ThrowStdDomainError(const std::string& what_arg); -[[noreturn]] void ThrowStdDomainError(const char* what_arg); -[[noreturn]] void ThrowStdLengthError(const std::string& what_arg); -[[noreturn]] void ThrowStdLengthError(const char* what_arg); -[[noreturn]] void ThrowStdOutOfRange(const std::string& what_arg); -[[noreturn]] void ThrowStdOutOfRange(const char* what_arg); -[[noreturn]] void ThrowStdRuntimeError(const std::string& what_arg); -[[noreturn]] void ThrowStdRuntimeError(const char* what_arg); -[[noreturn]] void ThrowStdRangeError(const std::string& what_arg); -[[noreturn]] void ThrowStdRangeError(const char* what_arg); -[[noreturn]] void ThrowStdOverflowError(const std::string& what_arg); -[[noreturn]] void ThrowStdOverflowError(const char* what_arg); -[[noreturn]] void ThrowStdUnderflowError(const std::string& what_arg); -[[noreturn]] void ThrowStdUnderflowError(const char* what_arg); - -[[noreturn]] void ThrowStdBadFunctionCall(); -[[noreturn]] void ThrowStdBadAlloc(); - -// ThrowStdBadArrayNewLength() cannot be consistently supported because -// std::bad_array_new_length is missing in libstdc++ until 4.9.0. -// https://gcc.gnu.org/onlinedocs/gcc-4.8.3/libstdc++/api/a01379_source.html -// https://gcc.gnu.org/onlinedocs/gcc-4.9.0/libstdc++/api/a01327_source.html -// libcxx (as of 3.2) and msvc (as of 2015) both have it. -// [[noreturn]] void ThrowStdBadArrayNewLength(); - -} // namespace base_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_BASE_INTERNAL_THROW_DELEGATE_H_ diff --git a/src/third_party/abseil-cpp/absl/base/internal/tsan_mutex_interface.h b/src/third_party/abseil-cpp/absl/base/internal/tsan_mutex_interface.h deleted file mode 100644 index 39207d8a5c..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/tsan_mutex_interface.h +++ /dev/null @@ -1,68 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// This file is intended solely for spinlock.h. -// It provides ThreadSanitizer annotations for custom mutexes. -// See for meaning of these annotations. - -#ifndef ABSL_BASE_INTERNAL_TSAN_MUTEX_INTERFACE_H_ -#define ABSL_BASE_INTERNAL_TSAN_MUTEX_INTERFACE_H_ - -#include "absl/base/config.h" - -// ABSL_INTERNAL_HAVE_TSAN_INTERFACE -// Macro intended only for internal use. -// -// Checks whether LLVM Thread Sanitizer interfaces are available. -// First made available in LLVM 5.0 (Sep 2017). -#ifdef ABSL_INTERNAL_HAVE_TSAN_INTERFACE -#error "ABSL_INTERNAL_HAVE_TSAN_INTERFACE cannot be directly set." -#endif - -#if defined(ABSL_HAVE_THREAD_SANITIZER) && defined(__has_include) -#if __has_include() -#define ABSL_INTERNAL_HAVE_TSAN_INTERFACE 1 -#endif -#endif - -#ifdef ABSL_INTERNAL_HAVE_TSAN_INTERFACE -#include - -#define ABSL_TSAN_MUTEX_CREATE __tsan_mutex_create -#define ABSL_TSAN_MUTEX_DESTROY __tsan_mutex_destroy -#define ABSL_TSAN_MUTEX_PRE_LOCK __tsan_mutex_pre_lock -#define ABSL_TSAN_MUTEX_POST_LOCK __tsan_mutex_post_lock -#define ABSL_TSAN_MUTEX_PRE_UNLOCK __tsan_mutex_pre_unlock -#define ABSL_TSAN_MUTEX_POST_UNLOCK __tsan_mutex_post_unlock -#define ABSL_TSAN_MUTEX_PRE_SIGNAL __tsan_mutex_pre_signal -#define ABSL_TSAN_MUTEX_POST_SIGNAL __tsan_mutex_post_signal -#define ABSL_TSAN_MUTEX_PRE_DIVERT __tsan_mutex_pre_divert -#define ABSL_TSAN_MUTEX_POST_DIVERT __tsan_mutex_post_divert - -#else - -#define ABSL_TSAN_MUTEX_CREATE(...) -#define ABSL_TSAN_MUTEX_DESTROY(...) -#define ABSL_TSAN_MUTEX_PRE_LOCK(...) -#define ABSL_TSAN_MUTEX_POST_LOCK(...) -#define ABSL_TSAN_MUTEX_PRE_UNLOCK(...) -#define ABSL_TSAN_MUTEX_POST_UNLOCK(...) -#define ABSL_TSAN_MUTEX_PRE_SIGNAL(...) -#define ABSL_TSAN_MUTEX_POST_SIGNAL(...) -#define ABSL_TSAN_MUTEX_PRE_DIVERT(...) -#define ABSL_TSAN_MUTEX_POST_DIVERT(...) - -#endif - -#endif // ABSL_BASE_INTERNAL_TSAN_MUTEX_INTERFACE_H_ diff --git a/src/third_party/abseil-cpp/absl/base/internal/unaligned_access.h b/src/third_party/abseil-cpp/absl/base/internal/unaligned_access.h deleted file mode 100644 index 093dd9b499..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/unaligned_access.h +++ /dev/null @@ -1,82 +0,0 @@ -// -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// - -#ifndef ABSL_BASE_INTERNAL_UNALIGNED_ACCESS_H_ -#define ABSL_BASE_INTERNAL_UNALIGNED_ACCESS_H_ - -#include - -#include - -#include "absl/base/attributes.h" -#include "absl/base/config.h" - -// unaligned APIs - -// Portable handling of unaligned loads, stores, and copies. - -// The unaligned API is C++ only. The declarations use C++ features -// (namespaces, inline) which are absent or incompatible in C. -#if defined(__cplusplus) -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace base_internal { - -inline uint16_t UnalignedLoad16(const void *p) { - uint16_t t; - memcpy(&t, p, sizeof t); - return t; -} - -inline uint32_t UnalignedLoad32(const void *p) { - uint32_t t; - memcpy(&t, p, sizeof t); - return t; -} - -inline uint64_t UnalignedLoad64(const void *p) { - uint64_t t; - memcpy(&t, p, sizeof t); - return t; -} - -inline void UnalignedStore16(void *p, uint16_t v) { memcpy(p, &v, sizeof v); } - -inline void UnalignedStore32(void *p, uint32_t v) { memcpy(p, &v, sizeof v); } - -inline void UnalignedStore64(void *p, uint64_t v) { memcpy(p, &v, sizeof v); } - -} // namespace base_internal -ABSL_NAMESPACE_END -} // namespace absl - -#define ABSL_INTERNAL_UNALIGNED_LOAD16(_p) \ - (absl::base_internal::UnalignedLoad16(_p)) -#define ABSL_INTERNAL_UNALIGNED_LOAD32(_p) \ - (absl::base_internal::UnalignedLoad32(_p)) -#define ABSL_INTERNAL_UNALIGNED_LOAD64(_p) \ - (absl::base_internal::UnalignedLoad64(_p)) - -#define ABSL_INTERNAL_UNALIGNED_STORE16(_p, _val) \ - (absl::base_internal::UnalignedStore16(_p, _val)) -#define ABSL_INTERNAL_UNALIGNED_STORE32(_p, _val) \ - (absl::base_internal::UnalignedStore32(_p, _val)) -#define ABSL_INTERNAL_UNALIGNED_STORE64(_p, _val) \ - (absl::base_internal::UnalignedStore64(_p, _val)) - -#endif // defined(__cplusplus), end of unaligned API - -#endif // ABSL_BASE_INTERNAL_UNALIGNED_ACCESS_H_ diff --git a/src/third_party/abseil-cpp/absl/base/internal/unique_small_name_test.cc b/src/third_party/abseil-cpp/absl/base/internal/unique_small_name_test.cc deleted file mode 100644 index ff8c2b3fb4..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/unique_small_name_test.cc +++ /dev/null @@ -1,77 +0,0 @@ -// Copyright 2020 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "gtest/gtest.h" -#include "absl/base/optimization.h" -#include "absl/strings/string_view.h" - -// This test by itself does not do anything fancy, but it serves as binary I can -// query in shell test. - -namespace { - -template -void DoNotOptimize(const T& var) { -#ifdef __GNUC__ - asm volatile("" : "+m"(const_cast(var))); -#else - std::cout << (void*)&var; -#endif -} - -int very_long_int_variable_name ABSL_INTERNAL_UNIQUE_SMALL_NAME() = 0; -char very_long_str_variable_name[] ABSL_INTERNAL_UNIQUE_SMALL_NAME() = "abc"; - -TEST(UniqueSmallName, NonAutomaticVar) { - EXPECT_EQ(very_long_int_variable_name, 0); - EXPECT_EQ(absl::string_view(very_long_str_variable_name), "abc"); -} - -int VeryLongFreeFunctionName() ABSL_INTERNAL_UNIQUE_SMALL_NAME(); - -TEST(UniqueSmallName, FreeFunction) { - DoNotOptimize(&VeryLongFreeFunctionName); - - EXPECT_EQ(VeryLongFreeFunctionName(), 456); -} - -int VeryLongFreeFunctionName() { return 456; } - -struct VeryLongStructName { - explicit VeryLongStructName(int i); - - int VeryLongMethodName() ABSL_INTERNAL_UNIQUE_SMALL_NAME(); - - static int VeryLongStaticMethodName() ABSL_INTERNAL_UNIQUE_SMALL_NAME(); - - private: - int fld; -}; - -TEST(UniqueSmallName, Struct) { - VeryLongStructName var(10); - - DoNotOptimize(var); - DoNotOptimize(&VeryLongStructName::VeryLongMethodName); - DoNotOptimize(&VeryLongStructName::VeryLongStaticMethodName); - - EXPECT_EQ(var.VeryLongMethodName(), 10); - EXPECT_EQ(VeryLongStructName::VeryLongStaticMethodName(), 123); -} - -VeryLongStructName::VeryLongStructName(int i) : fld(i) {} -int VeryLongStructName::VeryLongMethodName() { return fld; } -int VeryLongStructName::VeryLongStaticMethodName() { return 123; } - -} // namespace diff --git a/src/third_party/abseil-cpp/absl/base/internal/unscaledcycleclock.cc b/src/third_party/abseil-cpp/absl/base/internal/unscaledcycleclock.cc deleted file mode 100644 index b1c396c69c..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/unscaledcycleclock.cc +++ /dev/null @@ -1,153 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/base/internal/unscaledcycleclock.h" - -#if ABSL_USE_UNSCALED_CYCLECLOCK - -#if defined(_WIN32) -#include -#endif - -#if defined(__powerpc__) || defined(__ppc__) -#ifdef __GLIBC__ -#include -#elif defined(__FreeBSD__) -// clang-format off -// This order does actually matter =(. -#include -#include -// clang-format on - -#include "absl/base/call_once.h" -#endif -#endif - -#include "absl/base/internal/sysinfo.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace base_internal { - -#if defined(__i386__) - -int64_t UnscaledCycleClock::Now() { - int64_t ret; - __asm__ volatile("rdtsc" : "=A"(ret)); - return ret; -} - -double UnscaledCycleClock::Frequency() { - return base_internal::NominalCPUFrequency(); -} - -#elif defined(__x86_64__) - -double UnscaledCycleClock::Frequency() { - return base_internal::NominalCPUFrequency(); -} - -#elif defined(__powerpc__) || defined(__ppc__) - -int64_t UnscaledCycleClock::Now() { -#ifdef __GLIBC__ - return __ppc_get_timebase(); -#else -#ifdef __powerpc64__ - int64_t tbr; - asm volatile("mfspr %0, 268" : "=r"(tbr)); - return tbr; -#else - int32_t tbu, tbl, tmp; - asm volatile( - "0:\n" - "mftbu %[hi32]\n" - "mftb %[lo32]\n" - "mftbu %[tmp]\n" - "cmpw %[tmp],%[hi32]\n" - "bne 0b\n" - : [ hi32 ] "=r"(tbu), [ lo32 ] "=r"(tbl), [ tmp ] "=r"(tmp)); - return (static_cast(tbu) << 32) | tbl; -#endif -#endif -} - -double UnscaledCycleClock::Frequency() { -#ifdef __GLIBC__ - return __ppc_get_timebase_freq(); -#elif defined(_AIX) - // This is the same constant value as returned by - // __ppc_get_timebase_freq(). - return static_cast(512000000); -#elif defined(__FreeBSD__) - static once_flag init_timebase_frequency_once; - static double timebase_frequency = 0.0; - base_internal::LowLevelCallOnce(&init_timebase_frequency_once, [&]() { - size_t length = sizeof(timebase_frequency); - sysctlbyname("kern.timecounter.tc.timebase.frequency", &timebase_frequency, - &length, nullptr, 0); - }); - return timebase_frequency; -#else -#error Must implement UnscaledCycleClock::Frequency() -#endif -} - -#elif defined(__aarch64__) - -// System timer of ARMv8 runs at a different frequency than the CPU's. -// The frequency is fixed, typically in the range 1-50MHz. It can be -// read at CNTFRQ special register. We assume the OS has set up -// the virtual timer properly. -int64_t UnscaledCycleClock::Now() { - int64_t virtual_timer_value; - asm volatile("mrs %0, cntvct_el0" : "=r"(virtual_timer_value)); - return virtual_timer_value; -} - -double UnscaledCycleClock::Frequency() { - uint64_t aarch64_timer_frequency; - asm volatile("mrs %0, cntfrq_el0" : "=r"(aarch64_timer_frequency)); - return aarch64_timer_frequency; -} - -#elif defined(__riscv) - -int64_t UnscaledCycleClock::Now() { - int64_t virtual_timer_value; - asm volatile("rdcycle %0" : "=r"(virtual_timer_value)); - return virtual_timer_value; -} - -double UnscaledCycleClock::Frequency() { - return base_internal::NominalCPUFrequency(); -} - -#elif defined(_M_IX86) || defined(_M_X64) - -#pragma intrinsic(__rdtsc) - -int64_t UnscaledCycleClock::Now() { return __rdtsc(); } - -double UnscaledCycleClock::Frequency() { - return base_internal::NominalCPUFrequency(); -} - -#endif - -} // namespace base_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_USE_UNSCALED_CYCLECLOCK diff --git a/src/third_party/abseil-cpp/absl/base/internal/unscaledcycleclock.h b/src/third_party/abseil-cpp/absl/base/internal/unscaledcycleclock.h deleted file mode 100644 index cc1276ba08..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/unscaledcycleclock.h +++ /dev/null @@ -1,96 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// UnscaledCycleClock -// An UnscaledCycleClock yields the value and frequency of a cycle counter -// that increments at a rate that is approximately constant. -// This class is for internal use only, you should consider using CycleClock -// instead. -// -// Notes: -// The cycle counter frequency is not necessarily the core clock frequency. -// That is, CycleCounter cycles are not necessarily "CPU cycles". -// -// An arbitrary offset may have been added to the counter at power on. -// -// On some platforms, the rate and offset of the counter may differ -// slightly when read from different CPUs of a multiprocessor. Usually, -// we try to ensure that the operating system adjusts values periodically -// so that values agree approximately. If you need stronger guarantees, -// consider using alternate interfaces. -// -// The CPU is not required to maintain the ordering of a cycle counter read -// with respect to surrounding instructions. - -#ifndef ABSL_BASE_INTERNAL_UNSCALEDCYCLECLOCK_H_ -#define ABSL_BASE_INTERNAL_UNSCALEDCYCLECLOCK_H_ - -#include - -#if defined(__APPLE__) -#include -#endif - -#include "absl/base/config.h" -#include "absl/base/internal/unscaledcycleclock_config.h" - -#if ABSL_USE_UNSCALED_CYCLECLOCK - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace time_internal { -class UnscaledCycleClockWrapperForGetCurrentTime; -} // namespace time_internal - -namespace base_internal { -class CycleClock; -class UnscaledCycleClockWrapperForInitializeFrequency; - -class UnscaledCycleClock { - private: - UnscaledCycleClock() = delete; - - // Return the value of a cycle counter that counts at a rate that is - // approximately constant. - static int64_t Now(); - - // Return the how much UnscaledCycleClock::Now() increases per second. - // This is not necessarily the core CPU clock frequency. - // It may be the nominal value report by the kernel, rather than a measured - // value. - static double Frequency(); - - // Allowed users - friend class base_internal::CycleClock; - friend class time_internal::UnscaledCycleClockWrapperForGetCurrentTime; - friend class base_internal::UnscaledCycleClockWrapperForInitializeFrequency; -}; - -#if defined(__x86_64__) - -inline int64_t UnscaledCycleClock::Now() { - uint64_t low, high; - __asm__ volatile("rdtsc" : "=a"(low), "=d"(high)); - return static_cast((high << 32) | low); -} - -#endif - -} // namespace base_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_USE_UNSCALED_CYCLECLOCK - -#endif // ABSL_BASE_INTERNAL_UNSCALEDCYCLECLOCK_H_ diff --git a/src/third_party/abseil-cpp/absl/base/internal/unscaledcycleclock_config.h b/src/third_party/abseil-cpp/absl/base/internal/unscaledcycleclock_config.h deleted file mode 100644 index 24b324ac99..0000000000 --- a/src/third_party/abseil-cpp/absl/base/internal/unscaledcycleclock_config.h +++ /dev/null @@ -1,62 +0,0 @@ -// Copyright 2022 The Abseil Authors -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#ifndef ABSL_BASE_INTERNAL_UNSCALEDCYCLECLOCK_CONFIG_H_ -#define ABSL_BASE_INTERNAL_UNSCALEDCYCLECLOCK_CONFIG_H_ - -#if defined(__APPLE__) -#include -#endif - -// The following platforms have an implementation of a hardware counter. -#if defined(__i386__) || defined(__x86_64__) || defined(__aarch64__) || \ - defined(__powerpc__) || defined(__ppc__) || defined(__riscv) || \ - defined(_M_IX86) || (defined(_M_X64) && !defined(_M_ARM64EC)) -#define ABSL_HAVE_UNSCALED_CYCLECLOCK_IMPLEMENTATION 1 -#else -#define ABSL_HAVE_UNSCALED_CYCLECLOCK_IMPLEMENTATION 0 -#endif - -// The following platforms often disable access to the hardware -// counter (through a sandbox) even if the underlying hardware has a -// usable counter. The CycleTimer interface also requires a *scaled* -// CycleClock that runs at atleast 1 MHz. We've found some Android -// ARM64 devices where this is not the case, so we disable it by -// default on Android ARM64. -#if defined(__native_client__) || (defined(__APPLE__)) || \ - (defined(__ANDROID__) && defined(__aarch64__)) -#define ABSL_USE_UNSCALED_CYCLECLOCK_DEFAULT 0 -#else -#define ABSL_USE_UNSCALED_CYCLECLOCK_DEFAULT 1 -#endif - -// UnscaledCycleClock is an optional internal feature. -// Use "#if ABSL_USE_UNSCALED_CYCLECLOCK" to test for its presence. -// Can be overridden at compile-time via -DABSL_USE_UNSCALED_CYCLECLOCK=0|1 -#if !defined(ABSL_USE_UNSCALED_CYCLECLOCK) -#define ABSL_USE_UNSCALED_CYCLECLOCK \ - (ABSL_HAVE_UNSCALED_CYCLECLOCK_IMPLEMENTATION && \ - ABSL_USE_UNSCALED_CYCLECLOCK_DEFAULT) -#endif - -#if ABSL_USE_UNSCALED_CYCLECLOCK -// This macro can be used to test if UnscaledCycleClock::Frequency() -// is NominalCPUFrequency() on a particular platform. -#if (defined(__i386__) || defined(__x86_64__) || defined(__riscv) || \ - defined(_M_IX86) || defined(_M_X64)) -#define ABSL_INTERNAL_UNSCALED_CYCLECLOCK_FREQUENCY_IS_CPU_FREQUENCY -#endif -#endif - -#endif // ABSL_BASE_INTERNAL_UNSCALEDCYCLECLOCK_CONFIG_H_ diff --git a/src/third_party/abseil-cpp/absl/base/invoke_test.cc b/src/third_party/abseil-cpp/absl/base/invoke_test.cc deleted file mode 100644 index 7be26f649f..0000000000 --- a/src/third_party/abseil-cpp/absl/base/invoke_test.cc +++ /dev/null @@ -1,331 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/base/internal/invoke.h" - -#include -#include -#include -#include - -#include "gmock/gmock.h" -#include "gtest/gtest.h" -#include "absl/memory/memory.h" -#include "absl/strings/str_cat.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace base_internal { -namespace { - -int Function(int a, int b) { return a - b; } - -void VoidFunction(int& a, int& b) { - a += b; - b = a - b; - a -= b; -} - -int ZeroArgFunction() { return -1937; } - -int Sink(std::unique_ptr p) { - return *p; -} - -std::unique_ptr Factory(int n) { - return make_unique(n); -} - -void NoOp() {} - -struct ConstFunctor { - int operator()(int a, int b) const { return a - b; } -}; - -struct MutableFunctor { - int operator()(int a, int b) { return a - b; } -}; - -struct EphemeralFunctor { - int operator()(int a, int b) && { return a - b; } -}; - -struct OverloadedFunctor { - template - std::string operator()(const Args&... args) & { - return StrCat("&", args...); - } - template - std::string operator()(const Args&... args) const& { - return StrCat("const&", args...); - } - template - std::string operator()(const Args&... args) && { - return StrCat("&&", args...); - } -}; - -struct Class { - int Method(int a, int b) { return a - b; } - int ConstMethod(int a, int b) const { return a - b; } - int RefMethod(int a, int b) & { return a - b; } - int RefRefMethod(int a, int b) && { return a - b; } - int NoExceptMethod(int a, int b) noexcept { return a - b; } - int VolatileMethod(int a, int b) volatile { return a - b; } - - int member; -}; - -struct FlipFlop { - int ConstMethod() const { return member; } - FlipFlop operator*() const { return {-member}; } - - int member; -}; - -// CallMaybeWithArg(f) resolves either to invoke(f) or invoke(f, 42), depending -// on which one is valid. -template -decltype(base_internal::invoke(std::declval())) CallMaybeWithArg( - const F& f) { - return base_internal::invoke(f); -} - -template -decltype(base_internal::invoke(std::declval(), 42)) CallMaybeWithArg( - const F& f) { - return base_internal::invoke(f, 42); -} - -TEST(InvokeTest, Function) { - EXPECT_EQ(1, base_internal::invoke(Function, 3, 2)); - EXPECT_EQ(1, base_internal::invoke(&Function, 3, 2)); -} - -TEST(InvokeTest, NonCopyableArgument) { - EXPECT_EQ(42, base_internal::invoke(Sink, make_unique(42))); -} - -TEST(InvokeTest, NonCopyableResult) { - EXPECT_THAT(base_internal::invoke(Factory, 42), ::testing::Pointee(42)); -} - -TEST(InvokeTest, VoidResult) { base_internal::invoke(NoOp); } - -TEST(InvokeTest, ConstFunctor) { - EXPECT_EQ(1, base_internal::invoke(ConstFunctor(), 3, 2)); -} - -TEST(InvokeTest, MutableFunctor) { - MutableFunctor f; - EXPECT_EQ(1, base_internal::invoke(f, 3, 2)); - EXPECT_EQ(1, base_internal::invoke(MutableFunctor(), 3, 2)); -} - -TEST(InvokeTest, EphemeralFunctor) { - EphemeralFunctor f; - EXPECT_EQ(1, base_internal::invoke(std::move(f), 3, 2)); - EXPECT_EQ(1, base_internal::invoke(EphemeralFunctor(), 3, 2)); -} - -TEST(InvokeTest, OverloadedFunctor) { - OverloadedFunctor f; - const OverloadedFunctor& cf = f; - - EXPECT_EQ("&", base_internal::invoke(f)); - EXPECT_EQ("& 42", base_internal::invoke(f, " 42")); - - EXPECT_EQ("const&", base_internal::invoke(cf)); - EXPECT_EQ("const& 42", base_internal::invoke(cf, " 42")); - - EXPECT_EQ("&&", base_internal::invoke(std::move(f))); - - OverloadedFunctor f2; - EXPECT_EQ("&& 42", base_internal::invoke(std::move(f2), " 42")); -} - -TEST(InvokeTest, ReferenceWrapper) { - ConstFunctor cf; - MutableFunctor mf; - EXPECT_EQ(1, base_internal::invoke(std::cref(cf), 3, 2)); - EXPECT_EQ(1, base_internal::invoke(std::ref(cf), 3, 2)); - EXPECT_EQ(1, base_internal::invoke(std::ref(mf), 3, 2)); -} - -TEST(InvokeTest, MemberFunction) { - std::unique_ptr p(new Class); - std::unique_ptr cp(new Class); - std::unique_ptr vp(new Class); - - EXPECT_EQ(1, base_internal::invoke(&Class::Method, p, 3, 2)); - EXPECT_EQ(1, base_internal::invoke(&Class::Method, p.get(), 3, 2)); - EXPECT_EQ(1, base_internal::invoke(&Class::Method, *p, 3, 2)); - EXPECT_EQ(1, base_internal::invoke(&Class::RefMethod, p, 3, 2)); - EXPECT_EQ(1, base_internal::invoke(&Class::RefMethod, p.get(), 3, 2)); - EXPECT_EQ(1, base_internal::invoke(&Class::RefMethod, *p, 3, 2)); - EXPECT_EQ(1, base_internal::invoke(&Class::RefRefMethod, std::move(*p), 3, - 2)); // NOLINT - EXPECT_EQ(1, base_internal::invoke(&Class::NoExceptMethod, p, 3, 2)); - EXPECT_EQ(1, base_internal::invoke(&Class::NoExceptMethod, p.get(), 3, 2)); - EXPECT_EQ(1, base_internal::invoke(&Class::NoExceptMethod, *p, 3, 2)); - - EXPECT_EQ(1, base_internal::invoke(&Class::ConstMethod, p, 3, 2)); - EXPECT_EQ(1, base_internal::invoke(&Class::ConstMethod, p.get(), 3, 2)); - EXPECT_EQ(1, base_internal::invoke(&Class::ConstMethod, *p, 3, 2)); - - EXPECT_EQ(1, base_internal::invoke(&Class::ConstMethod, cp, 3, 2)); - EXPECT_EQ(1, base_internal::invoke(&Class::ConstMethod, cp.get(), 3, 2)); - EXPECT_EQ(1, base_internal::invoke(&Class::ConstMethod, *cp, 3, 2)); - - EXPECT_EQ(1, base_internal::invoke(&Class::VolatileMethod, p, 3, 2)); - EXPECT_EQ(1, base_internal::invoke(&Class::VolatileMethod, p.get(), 3, 2)); - EXPECT_EQ(1, base_internal::invoke(&Class::VolatileMethod, *p, 3, 2)); - EXPECT_EQ(1, base_internal::invoke(&Class::VolatileMethod, vp, 3, 2)); - EXPECT_EQ(1, base_internal::invoke(&Class::VolatileMethod, vp.get(), 3, 2)); - EXPECT_EQ(1, base_internal::invoke(&Class::VolatileMethod, *vp, 3, 2)); - - EXPECT_EQ(1, - base_internal::invoke(&Class::Method, make_unique(), 3, 2)); - EXPECT_EQ(1, base_internal::invoke(&Class::ConstMethod, make_unique(), - 3, 2)); - EXPECT_EQ(1, base_internal::invoke(&Class::ConstMethod, - make_unique(), 3, 2)); -} - -TEST(InvokeTest, DataMember) { - std::unique_ptr p(new Class{42}); - std::unique_ptr cp(new Class{42}); - EXPECT_EQ(42, base_internal::invoke(&Class::member, p)); - EXPECT_EQ(42, base_internal::invoke(&Class::member, *p)); - EXPECT_EQ(42, base_internal::invoke(&Class::member, p.get())); - - base_internal::invoke(&Class::member, p) = 42; - base_internal::invoke(&Class::member, p.get()) = 42; - - EXPECT_EQ(42, base_internal::invoke(&Class::member, cp)); - EXPECT_EQ(42, base_internal::invoke(&Class::member, *cp)); - EXPECT_EQ(42, base_internal::invoke(&Class::member, cp.get())); -} - -TEST(InvokeTest, FlipFlop) { - FlipFlop obj = {42}; - // This call could resolve to (obj.*&FlipFlop::ConstMethod)() or - // ((*obj).*&FlipFlop::ConstMethod)(). We verify that it's the former. - EXPECT_EQ(42, base_internal::invoke(&FlipFlop::ConstMethod, obj)); - EXPECT_EQ(42, base_internal::invoke(&FlipFlop::member, obj)); -} - -TEST(InvokeTest, SfinaeFriendly) { - CallMaybeWithArg(NoOp); - EXPECT_THAT(CallMaybeWithArg(Factory), ::testing::Pointee(42)); -} - -TEST(IsInvocableRTest, CallableExactMatch) { - static_assert( - base_internal::is_invocable_r::value, - "Should be true for exact match of types on a free function"); -} - -TEST(IsInvocableRTest, CallableArgumentConversionMatch) { - static_assert( - base_internal::is_invocable_r::value, - "Should be true for convertible argument type"); -} - -TEST(IsInvocableRTest, CallableReturnConversionMatch) { - static_assert(base_internal::is_invocable_r::value, - "Should be true for convertible return type"); -} - -TEST(IsInvocableRTest, CallableReturnVoid) { - static_assert(base_internal::is_invocable_r::value, - "Should be true for void expected and actual return types"); - static_assert( - base_internal::is_invocable_r::value, - "Should be true for void expected and non-void actual return types"); -} - -TEST(IsInvocableRTest, CallableRefQualifierMismatch) { - static_assert(!base_internal::is_invocable_r::value, - "Should be false for reference constness mismatch"); - static_assert(!base_internal::is_invocable_r::value, - "Should be false for reference value category mismatch"); -} - -TEST(IsInvocableRTest, CallableArgumentTypeMismatch) { - static_assert(!base_internal::is_invocable_r::value, - "Should be false for argument type mismatch"); -} - -TEST(IsInvocableRTest, CallableReturnTypeMismatch) { - static_assert(!base_internal::is_invocable_r::value, - "Should be false for return type mismatch"); -} - -TEST(IsInvocableRTest, CallableTooFewArgs) { - static_assert( - !base_internal::is_invocable_r::value, - "Should be false for too few arguments"); -} - -TEST(IsInvocableRTest, CallableTooManyArgs) { - static_assert(!base_internal::is_invocable_r::value, - "Should be false for too many arguments"); -} - -TEST(IsInvocableRTest, MemberFunctionAndReference) { - static_assert(base_internal::is_invocable_r::value, - "Should be true for exact match of types on a member function " - "and class reference"); -} - -TEST(IsInvocableRTest, MemberFunctionAndPointer) { - static_assert(base_internal::is_invocable_r::value, - "Should be true for exact match of types on a member function " - "and class pointer"); -} - -TEST(IsInvocableRTest, DataMemberAndReference) { - static_assert(base_internal::is_invocable_r::value, - "Should be true for exact match of types on a data member and " - "class reference"); -} - -TEST(IsInvocableRTest, DataMemberAndPointer) { - static_assert(base_internal::is_invocable_r::value, - "Should be true for exact match of types on a data member and " - "class pointer"); -} - -TEST(IsInvocableRTest, CallableZeroArgs) { - static_assert( - base_internal::is_invocable_r::value, - "Should be true for exact match for a zero-arg free function"); -} - -} // namespace -} // namespace base_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/src/third_party/abseil-cpp/absl/base/log_severity.cc b/src/third_party/abseil-cpp/absl/base/log_severity.cc deleted file mode 100644 index 60a8fc1f89..0000000000 --- a/src/third_party/abseil-cpp/absl/base/log_severity.cc +++ /dev/null @@ -1,55 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/base/log_severity.h" - -#include - -#include "absl/base/attributes.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN - -std::ostream& operator<<(std::ostream& os, absl::LogSeverity s) { - if (s == absl::NormalizeLogSeverity(s)) return os << absl::LogSeverityName(s); - return os << "absl::LogSeverity(" << static_cast(s) << ")"; -} - -std::ostream& operator<<(std::ostream& os, absl::LogSeverityAtLeast s) { - switch (s) { - case absl::LogSeverityAtLeast::kInfo: - case absl::LogSeverityAtLeast::kWarning: - case absl::LogSeverityAtLeast::kError: - case absl::LogSeverityAtLeast::kFatal: - return os << ">=" << static_cast(s); - case absl::LogSeverityAtLeast::kInfinity: - return os << "INFINITY"; - } - return os; -} - -std::ostream& operator<<(std::ostream& os, absl::LogSeverityAtMost s) { - switch (s) { - case absl::LogSeverityAtMost::kInfo: - case absl::LogSeverityAtMost::kWarning: - case absl::LogSeverityAtMost::kError: - case absl::LogSeverityAtMost::kFatal: - return os << "<=" << static_cast(s); - case absl::LogSeverityAtMost::kNegativeInfinity: - return os << "NEGATIVE_INFINITY"; - } - return os; -} -ABSL_NAMESPACE_END -} // namespace absl diff --git a/src/third_party/abseil-cpp/absl/base/log_severity.h b/src/third_party/abseil-cpp/absl/base/log_severity.h deleted file mode 100644 index 8bdca38b5f..0000000000 --- a/src/third_party/abseil-cpp/absl/base/log_severity.h +++ /dev/null @@ -1,172 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#ifndef ABSL_BASE_LOG_SEVERITY_H_ -#define ABSL_BASE_LOG_SEVERITY_H_ - -#include -#include - -#include "absl/base/attributes.h" -#include "absl/base/config.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN - -// absl::LogSeverity -// -// Four severity levels are defined. Logging APIs should terminate the program -// when a message is logged at severity `kFatal`; the other levels have no -// special semantics. -// -// Values other than the four defined levels (e.g. produced by `static_cast`) -// are valid, but their semantics when passed to a function, macro, or flag -// depend on the function, macro, or flag. The usual behavior is to normalize -// such values to a defined severity level, however in some cases values other -// than the defined levels are useful for comparison. -// -// Example: -// -// // Effectively disables all logging: -// SetMinLogLevel(static_cast(100)); -// -// Abseil flags may be defined with type `LogSeverity`. Dependency layering -// constraints require that the `AbslParseFlag()` overload be declared and -// defined in the flags library itself rather than here. The `AbslUnparseFlag()` -// overload is defined there as well for consistency. -// -// absl::LogSeverity Flag String Representation -// -// An `absl::LogSeverity` has a string representation used for parsing -// command-line flags based on the enumerator name (e.g. `kFatal`) or -// its unprefixed name (without the `k`) in any case-insensitive form. (E.g. -// "FATAL", "fatal" or "Fatal" are all valid.) Unparsing such flags produces an -// unprefixed string representation in all caps (e.g. "FATAL") or an integer. -// -// Additionally, the parser accepts arbitrary integers (as if the type were -// `int`). -// -// Examples: -// -// --my_log_level=kInfo -// --my_log_level=INFO -// --my_log_level=info -// --my_log_level=0 -// -// Unparsing a flag produces the same result as `absl::LogSeverityName()` for -// the standard levels and a base-ten integer otherwise. -enum class LogSeverity : int { - kInfo = 0, - kWarning = 1, - kError = 2, - kFatal = 3, -}; - -// LogSeverities() -// -// Returns an iterable of all standard `absl::LogSeverity` values, ordered from -// least to most severe. -constexpr std::array LogSeverities() { - return {{absl::LogSeverity::kInfo, absl::LogSeverity::kWarning, - absl::LogSeverity::kError, absl::LogSeverity::kFatal}}; -} - -// LogSeverityName() -// -// Returns the all-caps string representation (e.g. "INFO") of the specified -// severity level if it is one of the standard levels and "UNKNOWN" otherwise. -constexpr const char* LogSeverityName(absl::LogSeverity s) { - return s == absl::LogSeverity::kInfo - ? "INFO" - : s == absl::LogSeverity::kWarning - ? "WARNING" - : s == absl::LogSeverity::kError - ? "ERROR" - : s == absl::LogSeverity::kFatal ? "FATAL" : "UNKNOWN"; -} - -// NormalizeLogSeverity() -// -// Values less than `kInfo` normalize to `kInfo`; values greater than `kFatal` -// normalize to `kError` (**NOT** `kFatal`). -constexpr absl::LogSeverity NormalizeLogSeverity(absl::LogSeverity s) { - return s < absl::LogSeverity::kInfo - ? absl::LogSeverity::kInfo - : s > absl::LogSeverity::kFatal ? absl::LogSeverity::kError : s; -} -constexpr absl::LogSeverity NormalizeLogSeverity(int s) { - return absl::NormalizeLogSeverity(static_cast(s)); -} - -// operator<< -// -// The exact representation of a streamed `absl::LogSeverity` is deliberately -// unspecified; do not rely on it. -std::ostream& operator<<(std::ostream& os, absl::LogSeverity s); - -// Enums representing a lower bound for LogSeverity. APIs that only operate on -// messages of at least a certain level (for example, `SetMinLogLevel()`) use -// this type to specify that level. absl::LogSeverityAtLeast::kInfinity is -// a level above all threshold levels and therefore no log message will -// ever meet this threshold. -enum class LogSeverityAtLeast : int { - kInfo = static_cast(absl::LogSeverity::kInfo), - kWarning = static_cast(absl::LogSeverity::kWarning), - kError = static_cast(absl::LogSeverity::kError), - kFatal = static_cast(absl::LogSeverity::kFatal), - kInfinity = 1000, -}; - -std::ostream& operator<<(std::ostream& os, absl::LogSeverityAtLeast s); - -// Enums representing an upper bound for LogSeverity. APIs that only operate on -// messages of at most a certain level (for example, buffer all messages at or -// below a certain level) use this type to specify that level. -// absl::LogSeverityAtMost::kNegativeInfinity is a level below all threshold -// levels and therefore will exclude all log messages. -enum class LogSeverityAtMost : int { - kNegativeInfinity = -1000, - kInfo = static_cast(absl::LogSeverity::kInfo), - kWarning = static_cast(absl::LogSeverity::kWarning), - kError = static_cast(absl::LogSeverity::kError), - kFatal = static_cast(absl::LogSeverity::kFatal), -}; - -std::ostream& operator<<(std::ostream& os, absl::LogSeverityAtMost s); - -#define COMPOP(op1, op2, T) \ - constexpr bool operator op1(absl::T lhs, absl::LogSeverity rhs) { \ - return static_cast(lhs) op1 rhs; \ - } \ - constexpr bool operator op2(absl::LogSeverity lhs, absl::T rhs) { \ - return lhs op2 static_cast(rhs); \ - } - -// Comparisons between `LogSeverity` and `LogSeverityAtLeast`/ -// `LogSeverityAtMost` are only supported in one direction. -// Valid checks are: -// LogSeverity >= LogSeverityAtLeast -// LogSeverity < LogSeverityAtLeast -// LogSeverity <= LogSeverityAtMost -// LogSeverity > LogSeverityAtMost -COMPOP(>, <, LogSeverityAtLeast) -COMPOP(<=, >=, LogSeverityAtLeast) -COMPOP(<, >, LogSeverityAtMost) -COMPOP(>=, <=, LogSeverityAtMost) -#undef COMPOP - -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_BASE_LOG_SEVERITY_H_ diff --git a/src/third_party/abseil-cpp/absl/base/log_severity_test.cc b/src/third_party/abseil-cpp/absl/base/log_severity_test.cc deleted file mode 100644 index 16091a5bea..0000000000 --- a/src/third_party/abseil-cpp/absl/base/log_severity_test.cc +++ /dev/null @@ -1,245 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/base/log_severity.h" - -#include -#include -#include -#include -#include -#include -#include - -#include "gmock/gmock.h" -#include "gtest/gtest.h" -#include "absl/flags/internal/flag.h" -#include "absl/flags/marshalling.h" -#include "absl/strings/str_cat.h" - -namespace { -using ::testing::Eq; -using ::testing::IsFalse; -using ::testing::IsTrue; -using ::testing::TestWithParam; -using ::testing::Values; - -template -std::string StreamHelper(T value) { - std::ostringstream stream; - stream << value; - return stream.str(); -} - -TEST(StreamTest, Works) { - EXPECT_THAT(StreamHelper(static_cast(-100)), - Eq("absl::LogSeverity(-100)")); - EXPECT_THAT(StreamHelper(absl::LogSeverity::kInfo), Eq("INFO")); - EXPECT_THAT(StreamHelper(absl::LogSeverity::kWarning), Eq("WARNING")); - EXPECT_THAT(StreamHelper(absl::LogSeverity::kError), Eq("ERROR")); - EXPECT_THAT(StreamHelper(absl::LogSeverity::kFatal), Eq("FATAL")); - EXPECT_THAT(StreamHelper(static_cast(4)), - Eq("absl::LogSeverity(4)")); -} - -static_assert(absl::flags_internal::FlagUseValueAndInitBitStorage< - absl::LogSeverity>::value, - "Flags of type absl::LogSeverity ought to be lock-free."); - -using ParseFlagFromOutOfRangeIntegerTest = TestWithParam; -INSTANTIATE_TEST_SUITE_P( - Instantiation, ParseFlagFromOutOfRangeIntegerTest, - Values(static_cast(std::numeric_limits::min()) - 1, - static_cast(std::numeric_limits::max()) + 1)); -TEST_P(ParseFlagFromOutOfRangeIntegerTest, ReturnsError) { - const std::string to_parse = absl::StrCat(GetParam()); - absl::LogSeverity value; - std::string error; - EXPECT_THAT(absl::ParseFlag(to_parse, &value, &error), IsFalse()) << value; -} - -using ParseFlagFromAlmostOutOfRangeIntegerTest = TestWithParam; -INSTANTIATE_TEST_SUITE_P(Instantiation, - ParseFlagFromAlmostOutOfRangeIntegerTest, - Values(std::numeric_limits::min(), - std::numeric_limits::max())); -TEST_P(ParseFlagFromAlmostOutOfRangeIntegerTest, YieldsExpectedValue) { - const auto expected = static_cast(GetParam()); - const std::string to_parse = absl::StrCat(GetParam()); - absl::LogSeverity value; - std::string error; - ASSERT_THAT(absl::ParseFlag(to_parse, &value, &error), IsTrue()) << error; - EXPECT_THAT(value, Eq(expected)); -} - -using ParseFlagFromIntegerMatchingEnumeratorTest = - TestWithParam>; -INSTANTIATE_TEST_SUITE_P( - Instantiation, ParseFlagFromIntegerMatchingEnumeratorTest, - Values(std::make_tuple("0", absl::LogSeverity::kInfo), - std::make_tuple(" 0", absl::LogSeverity::kInfo), - std::make_tuple("-0", absl::LogSeverity::kInfo), - std::make_tuple("+0", absl::LogSeverity::kInfo), - std::make_tuple("00", absl::LogSeverity::kInfo), - std::make_tuple("0 ", absl::LogSeverity::kInfo), - std::make_tuple("0x0", absl::LogSeverity::kInfo), - std::make_tuple("1", absl::LogSeverity::kWarning), - std::make_tuple("+1", absl::LogSeverity::kWarning), - std::make_tuple("2", absl::LogSeverity::kError), - std::make_tuple("3", absl::LogSeverity::kFatal))); -TEST_P(ParseFlagFromIntegerMatchingEnumeratorTest, YieldsExpectedValue) { - const absl::string_view to_parse = std::get<0>(GetParam()); - const absl::LogSeverity expected = std::get<1>(GetParam()); - absl::LogSeverity value; - std::string error; - ASSERT_THAT(absl::ParseFlag(to_parse, &value, &error), IsTrue()) << error; - EXPECT_THAT(value, Eq(expected)); -} - -using ParseFlagFromOtherIntegerTest = - TestWithParam>; -INSTANTIATE_TEST_SUITE_P(Instantiation, ParseFlagFromOtherIntegerTest, - Values(std::make_tuple("-1", -1), - std::make_tuple("4", 4), - std::make_tuple("010", 10), - std::make_tuple("0x10", 16))); -TEST_P(ParseFlagFromOtherIntegerTest, YieldsExpectedValue) { - const absl::string_view to_parse = std::get<0>(GetParam()); - const auto expected = static_cast(std::get<1>(GetParam())); - absl::LogSeverity value; - std::string error; - ASSERT_THAT(absl::ParseFlag(to_parse, &value, &error), IsTrue()) << error; - EXPECT_THAT(value, Eq(expected)); -} - -using ParseFlagFromEnumeratorTest = - TestWithParam>; -INSTANTIATE_TEST_SUITE_P( - Instantiation, ParseFlagFromEnumeratorTest, - Values(std::make_tuple("INFO", absl::LogSeverity::kInfo), - std::make_tuple("info", absl::LogSeverity::kInfo), - std::make_tuple("kInfo", absl::LogSeverity::kInfo), - std::make_tuple("iNfO", absl::LogSeverity::kInfo), - std::make_tuple("kInFo", absl::LogSeverity::kInfo), - std::make_tuple("WARNING", absl::LogSeverity::kWarning), - std::make_tuple("warning", absl::LogSeverity::kWarning), - std::make_tuple("kWarning", absl::LogSeverity::kWarning), - std::make_tuple("WaRnInG", absl::LogSeverity::kWarning), - std::make_tuple("KwArNiNg", absl::LogSeverity::kWarning), - std::make_tuple("ERROR", absl::LogSeverity::kError), - std::make_tuple("error", absl::LogSeverity::kError), - std::make_tuple("kError", absl::LogSeverity::kError), - std::make_tuple("eRrOr", absl::LogSeverity::kError), - std::make_tuple("kErRoR", absl::LogSeverity::kError), - std::make_tuple("FATAL", absl::LogSeverity::kFatal), - std::make_tuple("fatal", absl::LogSeverity::kFatal), - std::make_tuple("kFatal", absl::LogSeverity::kFatal), - std::make_tuple("FaTaL", absl::LogSeverity::kFatal), - std::make_tuple("KfAtAl", absl::LogSeverity::kFatal))); -TEST_P(ParseFlagFromEnumeratorTest, YieldsExpectedValue) { - const absl::string_view to_parse = std::get<0>(GetParam()); - const absl::LogSeverity expected = std::get<1>(GetParam()); - absl::LogSeverity value; - std::string error; - ASSERT_THAT(absl::ParseFlag(to_parse, &value, &error), IsTrue()) << error; - EXPECT_THAT(value, Eq(expected)); -} - -using ParseFlagFromGarbageTest = TestWithParam; -INSTANTIATE_TEST_SUITE_P(Instantiation, ParseFlagFromGarbageTest, - Values("", "\0", " ", "garbage", "kkinfo", "I")); -TEST_P(ParseFlagFromGarbageTest, ReturnsError) { - const absl::string_view to_parse = GetParam(); - absl::LogSeverity value; - std::string error; - EXPECT_THAT(absl::ParseFlag(to_parse, &value, &error), IsFalse()) << value; -} - -using UnparseFlagToEnumeratorTest = - TestWithParam>; -INSTANTIATE_TEST_SUITE_P( - Instantiation, UnparseFlagToEnumeratorTest, - Values(std::make_tuple(absl::LogSeverity::kInfo, "INFO"), - std::make_tuple(absl::LogSeverity::kWarning, "WARNING"), - std::make_tuple(absl::LogSeverity::kError, "ERROR"), - std::make_tuple(absl::LogSeverity::kFatal, "FATAL"))); -TEST_P(UnparseFlagToEnumeratorTest, ReturnsExpectedValueAndRoundTrips) { - const absl::LogSeverity to_unparse = std::get<0>(GetParam()); - const absl::string_view expected = std::get<1>(GetParam()); - const std::string stringified_value = absl::UnparseFlag(to_unparse); - EXPECT_THAT(stringified_value, Eq(expected)); - absl::LogSeverity reparsed_value; - std::string error; - EXPECT_THAT(absl::ParseFlag(stringified_value, &reparsed_value, &error), - IsTrue()); - EXPECT_THAT(reparsed_value, Eq(to_unparse)); -} - -using UnparseFlagToOtherIntegerTest = TestWithParam; -INSTANTIATE_TEST_SUITE_P(Instantiation, UnparseFlagToOtherIntegerTest, - Values(std::numeric_limits::min(), -1, 4, - std::numeric_limits::max())); -TEST_P(UnparseFlagToOtherIntegerTest, ReturnsExpectedValueAndRoundTrips) { - const absl::LogSeverity to_unparse = - static_cast(GetParam()); - const std::string expected = absl::StrCat(GetParam()); - const std::string stringified_value = absl::UnparseFlag(to_unparse); - EXPECT_THAT(stringified_value, Eq(expected)); - absl::LogSeverity reparsed_value; - std::string error; - EXPECT_THAT(absl::ParseFlag(stringified_value, &reparsed_value, &error), - IsTrue()); - EXPECT_THAT(reparsed_value, Eq(to_unparse)); -} - -TEST(LogThresholdTest, LogSeverityAtLeastTest) { - EXPECT_LT(absl::LogSeverity::kError, absl::LogSeverityAtLeast::kFatal); - EXPECT_GT(absl::LogSeverityAtLeast::kError, absl::LogSeverity::kInfo); - - EXPECT_LE(absl::LogSeverityAtLeast::kInfo, absl::LogSeverity::kError); - EXPECT_GE(absl::LogSeverity::kError, absl::LogSeverityAtLeast::kInfo); -} - -TEST(LogThresholdTest, LogSeverityAtMostTest) { - EXPECT_GT(absl::LogSeverity::kError, absl::LogSeverityAtMost::kWarning); - EXPECT_LT(absl::LogSeverityAtMost::kError, absl::LogSeverity::kFatal); - - EXPECT_GE(absl::LogSeverityAtMost::kFatal, absl::LogSeverity::kError); - EXPECT_LE(absl::LogSeverity::kWarning, absl::LogSeverityAtMost::kError); -} - -TEST(LogThresholdTest, Extremes) { - EXPECT_LT(absl::LogSeverity::kFatal, absl::LogSeverityAtLeast::kInfinity); - EXPECT_GT(absl::LogSeverity::kInfo, - absl::LogSeverityAtMost::kNegativeInfinity); -} - -TEST(LogThresholdTest, Output) { - EXPECT_THAT(StreamHelper(absl::LogSeverityAtLeast::kInfo), Eq(">=INFO")); - EXPECT_THAT(StreamHelper(absl::LogSeverityAtLeast::kWarning), - Eq(">=WARNING")); - EXPECT_THAT(StreamHelper(absl::LogSeverityAtLeast::kError), Eq(">=ERROR")); - EXPECT_THAT(StreamHelper(absl::LogSeverityAtLeast::kFatal), Eq(">=FATAL")); - EXPECT_THAT(StreamHelper(absl::LogSeverityAtLeast::kInfinity), - Eq("INFINITY")); - - EXPECT_THAT(StreamHelper(absl::LogSeverityAtMost::kInfo), Eq("<=INFO")); - EXPECT_THAT(StreamHelper(absl::LogSeverityAtMost::kWarning), Eq("<=WARNING")); - EXPECT_THAT(StreamHelper(absl::LogSeverityAtMost::kError), Eq("<=ERROR")); - EXPECT_THAT(StreamHelper(absl::LogSeverityAtMost::kFatal), Eq("<=FATAL")); - EXPECT_THAT(StreamHelper(absl::LogSeverityAtMost::kNegativeInfinity), - Eq("NEGATIVE_INFINITY")); -} - -} // namespace diff --git a/src/third_party/abseil-cpp/absl/base/macros.h b/src/third_party/abseil-cpp/absl/base/macros.h deleted file mode 100644 index f33cd1927b..0000000000 --- a/src/third_party/abseil-cpp/absl/base/macros.h +++ /dev/null @@ -1,141 +0,0 @@ -// -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// ----------------------------------------------------------------------------- -// File: macros.h -// ----------------------------------------------------------------------------- -// -// This header file defines the set of language macros used within Abseil code. -// For the set of macros used to determine supported compilers and platforms, -// see absl/base/config.h instead. -// -// This code is compiled directly on many platforms, including client -// platforms like Windows, Mac, and embedded systems. Before making -// any changes here, make sure that you're not breaking any platforms. - -#ifndef ABSL_BASE_MACROS_H_ -#define ABSL_BASE_MACROS_H_ - -#include -#include - -#include "absl/base/attributes.h" -#include "absl/base/config.h" -#include "absl/base/optimization.h" -#include "absl/base/port.h" - -// ABSL_ARRAYSIZE() -// -// Returns the number of elements in an array as a compile-time constant, which -// can be used in defining new arrays. If you use this macro on a pointer by -// mistake, you will get a compile-time error. -#define ABSL_ARRAYSIZE(array) \ - (sizeof(::absl::macros_internal::ArraySizeHelper(array))) - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace macros_internal { -// Note: this internal template function declaration is used by ABSL_ARRAYSIZE. -// The function doesn't need a definition, as we only use its type. -template -auto ArraySizeHelper(const T (&array)[N]) -> char (&)[N]; -} // namespace macros_internal -ABSL_NAMESPACE_END -} // namespace absl - -// ABSL_BAD_CALL_IF() -// -// Used on a function overload to trap bad calls: any call that matches the -// overload will cause a compile-time error. This macro uses a clang-specific -// "enable_if" attribute, as described at -// https://clang.llvm.org/docs/AttributeReference.html#enable-if -// -// Overloads which use this macro should be bracketed by -// `#ifdef ABSL_BAD_CALL_IF`. -// -// Example: -// -// int isdigit(int c); -// #ifdef ABSL_BAD_CALL_IF -// int isdigit(int c) -// ABSL_BAD_CALL_IF(c <= -1 || c > 255, -// "'c' must have the value of an unsigned char or EOF"); -// #endif // ABSL_BAD_CALL_IF -#if ABSL_HAVE_ATTRIBUTE(enable_if) -#define ABSL_BAD_CALL_IF(expr, msg) \ - __attribute__((enable_if(expr, "Bad call trap"), unavailable(msg))) -#endif - -// ABSL_ASSERT() -// -// In C++11, `assert` can't be used portably within constexpr functions. -// ABSL_ASSERT functions as a runtime assert but works in C++11 constexpr -// functions. Example: -// -// constexpr double Divide(double a, double b) { -// return ABSL_ASSERT(b != 0), a / b; -// } -// -// This macro is inspired by -// https://akrzemi1.wordpress.com/2017/05/18/asserts-in-constexpr-functions/ -#if defined(NDEBUG) -#define ABSL_ASSERT(expr) \ - (false ? static_cast(expr) : static_cast(0)) -#else -#define ABSL_ASSERT(expr) \ - (ABSL_PREDICT_TRUE((expr)) ? static_cast(0) \ - : [] { assert(false && #expr); }()) // NOLINT -#endif - -// `ABSL_INTERNAL_HARDENING_ABORT()` controls how `ABSL_HARDENING_ASSERT()` -// aborts the program in release mode (when NDEBUG is defined). The -// implementation should abort the program as quickly as possible and ideally it -// should not be possible to ignore the abort request. -#define ABSL_INTERNAL_HARDENING_ABORT() \ - do { \ - ABSL_INTERNAL_IMMEDIATE_ABORT_IMPL(); \ - ABSL_INTERNAL_UNREACHABLE_IMPL(); \ - } while (false) - -// ABSL_HARDENING_ASSERT() -// -// `ABSL_HARDENING_ASSERT()` is like `ABSL_ASSERT()`, but used to implement -// runtime assertions that should be enabled in hardened builds even when -// `NDEBUG` is defined. -// -// When `NDEBUG` is not defined, `ABSL_HARDENING_ASSERT()` is identical to -// `ABSL_ASSERT()`. -// -// See `ABSL_OPTION_HARDENED` in `absl/base/options.h` for more information on -// hardened mode. -#if ABSL_OPTION_HARDENED == 1 && defined(NDEBUG) -#define ABSL_HARDENING_ASSERT(expr) \ - (ABSL_PREDICT_TRUE((expr)) ? static_cast(0) \ - : [] { ABSL_INTERNAL_HARDENING_ABORT(); }()) -#else -#define ABSL_HARDENING_ASSERT(expr) ABSL_ASSERT(expr) -#endif - -#ifdef ABSL_HAVE_EXCEPTIONS -#define ABSL_INTERNAL_TRY try -#define ABSL_INTERNAL_CATCH_ANY catch (...) -#define ABSL_INTERNAL_RETHROW do { throw; } while (false) -#else // ABSL_HAVE_EXCEPTIONS -#define ABSL_INTERNAL_TRY if (true) -#define ABSL_INTERNAL_CATCH_ANY else if (false) -#define ABSL_INTERNAL_RETHROW do {} while (false) -#endif // ABSL_HAVE_EXCEPTIONS - -#endif // ABSL_BASE_MACROS_H_ diff --git a/src/third_party/abseil-cpp/absl/base/optimization.h b/src/third_party/abseil-cpp/absl/base/optimization.h deleted file mode 100644 index ad0121ad3b..0000000000 --- a/src/third_party/abseil-cpp/absl/base/optimization.h +++ /dev/null @@ -1,304 +0,0 @@ -// -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// ----------------------------------------------------------------------------- -// File: optimization.h -// ----------------------------------------------------------------------------- -// -// This header file defines portable macros for performance optimization. - -#ifndef ABSL_BASE_OPTIMIZATION_H_ -#define ABSL_BASE_OPTIMIZATION_H_ - -#include - -#include "absl/base/config.h" - -// ABSL_BLOCK_TAIL_CALL_OPTIMIZATION -// -// Instructs the compiler to avoid optimizing tail-call recursion. This macro is -// useful when you wish to preserve the existing function order within a stack -// trace for logging, debugging, or profiling purposes. -// -// Example: -// -// int f() { -// int result = g(); -// ABSL_BLOCK_TAIL_CALL_OPTIMIZATION(); -// return result; -// } -#if defined(__pnacl__) -#define ABSL_BLOCK_TAIL_CALL_OPTIMIZATION() if (volatile int x = 0) { (void)x; } -#elif defined(__clang__) -// Clang will not tail call given inline volatile assembly. -#define ABSL_BLOCK_TAIL_CALL_OPTIMIZATION() __asm__ __volatile__("") -#elif defined(__GNUC__) -// GCC will not tail call given inline volatile assembly. -#define ABSL_BLOCK_TAIL_CALL_OPTIMIZATION() __asm__ __volatile__("") -#elif defined(_MSC_VER) -#include -// The __nop() intrinsic blocks the optimisation. -#define ABSL_BLOCK_TAIL_CALL_OPTIMIZATION() __nop() -#else -#define ABSL_BLOCK_TAIL_CALL_OPTIMIZATION() if (volatile int x = 0) { (void)x; } -#endif - -// ABSL_CACHELINE_SIZE -// -// Explicitly defines the size of the L1 cache for purposes of alignment. -// Setting the cacheline size allows you to specify that certain objects be -// aligned on a cacheline boundary with `ABSL_CACHELINE_ALIGNED` declarations. -// (See below.) -// -// NOTE: this macro should be replaced with the following C++17 features, when -// those are generally available: -// -// * `std::hardware_constructive_interference_size` -// * `std::hardware_destructive_interference_size` -// -// See http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2016/p0154r1.html -// for more information. -#if defined(__GNUC__) -// Cache line alignment -#if defined(__i386__) || defined(__x86_64__) -#define ABSL_CACHELINE_SIZE 64 -#elif defined(__powerpc64__) -#define ABSL_CACHELINE_SIZE 128 -#elif defined(__aarch64__) -// We would need to read special register ctr_el0 to find out L1 dcache size. -// This value is a good estimate based on a real aarch64 machine. -#define ABSL_CACHELINE_SIZE 64 -#elif defined(__arm__) -// Cache line sizes for ARM: These values are not strictly correct since -// cache line sizes depend on implementations, not architectures. There -// are even implementations with cache line sizes configurable at boot -// time. -#if defined(__ARM_ARCH_5T__) -#define ABSL_CACHELINE_SIZE 32 -#elif defined(__ARM_ARCH_7A__) -#define ABSL_CACHELINE_SIZE 64 -#endif -#endif -#endif - -#ifndef ABSL_CACHELINE_SIZE -// A reasonable default guess. Note that overestimates tend to waste more -// space, while underestimates tend to waste more time. -#define ABSL_CACHELINE_SIZE 64 -#endif - -// ABSL_CACHELINE_ALIGNED -// -// Indicates that the declared object be cache aligned using -// `ABSL_CACHELINE_SIZE` (see above). Cacheline aligning objects allows you to -// load a set of related objects in the L1 cache for performance improvements. -// Cacheline aligning objects properly allows constructive memory sharing and -// prevents destructive (or "false") memory sharing. -// -// NOTE: callers should replace uses of this macro with `alignas()` using -// `std::hardware_constructive_interference_size` and/or -// `std::hardware_destructive_interference_size` when C++17 becomes available to -// them. -// -// See http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2016/p0154r1.html -// for more information. -// -// On some compilers, `ABSL_CACHELINE_ALIGNED` expands to an `__attribute__` -// or `__declspec` attribute. For compilers where this is not known to work, -// the macro expands to nothing. -// -// No further guarantees are made here. The result of applying the macro -// to variables and types is always implementation-defined. -// -// WARNING: It is easy to use this attribute incorrectly, even to the point -// of causing bugs that are difficult to diagnose, crash, etc. It does not -// of itself guarantee that objects are aligned to a cache line. -// -// NOTE: Some compilers are picky about the locations of annotations such as -// this attribute, so prefer to put it at the beginning of your declaration. -// For example, -// -// ABSL_CACHELINE_ALIGNED static Foo* foo = ... -// -// class ABSL_CACHELINE_ALIGNED Bar { ... -// -// Recommendations: -// -// 1) Consult compiler documentation; this comment is not kept in sync as -// toolchains evolve. -// 2) Verify your use has the intended effect. This often requires inspecting -// the generated machine code. -// 3) Prefer applying this attribute to individual variables. Avoid -// applying it to types. This tends to localize the effect. -#if defined(__clang__) || defined(__GNUC__) -#define ABSL_CACHELINE_ALIGNED __attribute__((aligned(ABSL_CACHELINE_SIZE))) -#elif defined(_MSC_VER) -#define ABSL_CACHELINE_ALIGNED __declspec(align(ABSL_CACHELINE_SIZE)) -#else -#define ABSL_CACHELINE_ALIGNED -#endif - -// ABSL_PREDICT_TRUE, ABSL_PREDICT_FALSE -// -// Enables the compiler to prioritize compilation using static analysis for -// likely paths within a boolean branch. -// -// Example: -// -// if (ABSL_PREDICT_TRUE(expression)) { -// return result; // Faster if more likely -// } else { -// return 0; -// } -// -// Compilers can use the information that a certain branch is not likely to be -// taken (for instance, a CHECK failure) to optimize for the common case in -// the absence of better information (ie. compiling gcc with `-fprofile-arcs`). -// -// Recommendation: Modern CPUs dynamically predict branch execution paths, -// typically with accuracy greater than 97%. As a result, annotating every -// branch in a codebase is likely counterproductive; however, annotating -// specific branches that are both hot and consistently mispredicted is likely -// to yield performance improvements. -#if ABSL_HAVE_BUILTIN(__builtin_expect) || \ - (defined(__GNUC__) && !defined(__clang__)) -#define ABSL_PREDICT_FALSE(x) (__builtin_expect(false || (x), false)) -#define ABSL_PREDICT_TRUE(x) (__builtin_expect(false || (x), true)) -#else -#define ABSL_PREDICT_FALSE(x) (x) -#define ABSL_PREDICT_TRUE(x) (x) -#endif - -// `ABSL_INTERNAL_IMMEDIATE_ABORT_IMPL()` aborts the program in the fastest -// possible way, with no attempt at logging. One use is to implement hardening -// aborts with ABSL_OPTION_HARDENED. Since this is an internal symbol, it -// should not be used directly outside of Abseil. -#if ABSL_HAVE_BUILTIN(__builtin_trap) || \ - (defined(__GNUC__) && !defined(__clang__)) -#define ABSL_INTERNAL_IMMEDIATE_ABORT_IMPL() __builtin_trap() -#else -#define ABSL_INTERNAL_IMMEDIATE_ABORT_IMPL() abort() -#endif - -// `ABSL_INTERNAL_UNREACHABLE_IMPL()` is the platform specific directive to -// indicate that a statement is unreachable, and to allow the compiler to -// optimize accordingly. Clients should use `ABSL_UNREACHABLE()`, which is -// defined below. -#if defined(__cpp_lib_unreachable) && __cpp_lib_unreachable >= 202202L -#define ABSL_INTERNAL_UNREACHABLE_IMPL() std::unreachable() -#elif defined(__GNUC__) || ABSL_HAVE_BUILTIN(__builtin_unreachable) -#define ABSL_INTERNAL_UNREACHABLE_IMPL() __builtin_unreachable() -#elif ABSL_HAVE_BUILTIN(__builtin_assume) -#define ABSL_INTERNAL_UNREACHABLE_IMPL() __builtin_assume(false) -#elif defined(_MSC_VER) -#define ABSL_INTERNAL_UNREACHABLE_IMPL() __assume(false) -#else -#define ABSL_INTERNAL_UNREACHABLE_IMPL() -#endif - -// `ABSL_UNREACHABLE()` is an unreachable statement. A program which reaches -// one has undefined behavior, and the compiler may optimize accordingly. -#if ABSL_OPTION_HARDENED == 1 && defined(NDEBUG) -// Abort in hardened mode to avoid dangerous undefined behavior. -#define ABSL_UNREACHABLE() \ - do { \ - ABSL_INTERNAL_IMMEDIATE_ABORT_IMPL(); \ - ABSL_INTERNAL_UNREACHABLE_IMPL(); \ - } while (false) -#else -// The assert only fires in debug mode to aid in debugging. -// When NDEBUG is defined, reaching ABSL_UNREACHABLE() is undefined behavior. -#define ABSL_UNREACHABLE() \ - do { \ - /* NOLINTNEXTLINE: misc-static-assert */ \ - assert(false && "ABSL_UNREACHABLE reached"); \ - ABSL_INTERNAL_UNREACHABLE_IMPL(); \ - } while (false) -#endif - -// ABSL_ASSUME(cond) -// -// Informs the compiler that a condition is always true and that it can assume -// it to be true for optimization purposes. -// -// WARNING: If the condition is false, the program can produce undefined and -// potentially dangerous behavior. -// -// In !NDEBUG mode, the condition is checked with an assert(). -// -// NOTE: The expression must not have side effects, as it may only be evaluated -// in some compilation modes and not others. Some compilers may issue a warning -// if the compiler cannot prove the expression has no side effects. For example, -// the expression should not use a function call since the compiler cannot prove -// that a function call does not have side effects. -// -// Example: -// -// int x = ...; -// ABSL_ASSUME(x >= 0); -// // The compiler can optimize the division to a simple right shift using the -// // assumption specified above. -// int y = x / 16; -// -#if !defined(NDEBUG) -#define ABSL_ASSUME(cond) assert(cond) -#elif ABSL_HAVE_BUILTIN(__builtin_assume) -#define ABSL_ASSUME(cond) __builtin_assume(cond) -#elif defined(_MSC_VER) -#define ABSL_ASSUME(cond) __assume(cond) -#elif defined(__cpp_lib_unreachable) && __cpp_lib_unreachable >= 202202L -#define ABSL_ASSUME(cond) \ - do { \ - if (!(cond)) std::unreachable(); \ - } while (false) -#elif defined(__GNUC__) || ABSL_HAVE_BUILTIN(__builtin_unreachable) -#define ABSL_ASSUME(cond) \ - do { \ - if (!(cond)) __builtin_unreachable(); \ - } while (false) -#else -#define ABSL_ASSUME(cond) \ - do { \ - static_cast(false && (cond)); \ - } while (false) -#endif - -// ABSL_INTERNAL_UNIQUE_SMALL_NAME(cond) -// This macro forces small unique name on a static file level symbols like -// static local variables or static functions. This is intended to be used in -// macro definitions to optimize the cost of generated code. Do NOT use it on -// symbols exported from translation unit since it may cause a link time -// conflict. -// -// Example: -// -// #define MY_MACRO(txt) -// namespace { -// char VeryVeryLongVarName[] ABSL_INTERNAL_UNIQUE_SMALL_NAME() = txt; -// const char* VeryVeryLongFuncName() ABSL_INTERNAL_UNIQUE_SMALL_NAME(); -// const char* VeryVeryLongFuncName() { return txt; } -// } -// - -#if defined(__GNUC__) -#define ABSL_INTERNAL_UNIQUE_SMALL_NAME2(x) #x -#define ABSL_INTERNAL_UNIQUE_SMALL_NAME1(x) ABSL_INTERNAL_UNIQUE_SMALL_NAME2(x) -#define ABSL_INTERNAL_UNIQUE_SMALL_NAME() \ - asm(ABSL_INTERNAL_UNIQUE_SMALL_NAME1(.absl.__COUNTER__)) -#else -#define ABSL_INTERNAL_UNIQUE_SMALL_NAME() -#endif - -#endif // ABSL_BASE_OPTIMIZATION_H_ diff --git a/src/third_party/abseil-cpp/absl/base/optimization_test.cc b/src/third_party/abseil-cpp/absl/base/optimization_test.cc deleted file mode 100644 index e83369f322..0000000000 --- a/src/third_party/abseil-cpp/absl/base/optimization_test.cc +++ /dev/null @@ -1,129 +0,0 @@ -// Copyright 2020 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/base/optimization.h" - -#include "gtest/gtest.h" -#include "absl/types/optional.h" - -namespace { - -// Tests for the ABSL_PREDICT_TRUE and ABSL_PREDICT_FALSE macros. -// The tests only verify that the macros are functionally correct - i.e. code -// behaves as if they weren't used. They don't try to check their impact on -// optimization. - -TEST(PredictTest, PredictTrue) { - EXPECT_TRUE(ABSL_PREDICT_TRUE(true)); - EXPECT_FALSE(ABSL_PREDICT_TRUE(false)); - EXPECT_TRUE(ABSL_PREDICT_TRUE(1 == 1)); - EXPECT_FALSE(ABSL_PREDICT_TRUE(1 == 2)); - - if (ABSL_PREDICT_TRUE(false)) ADD_FAILURE(); - if (!ABSL_PREDICT_TRUE(true)) ADD_FAILURE(); - - EXPECT_TRUE(ABSL_PREDICT_TRUE(true) && true); - EXPECT_TRUE(ABSL_PREDICT_TRUE(true) || false); -} - -TEST(PredictTest, PredictFalse) { - EXPECT_TRUE(ABSL_PREDICT_FALSE(true)); - EXPECT_FALSE(ABSL_PREDICT_FALSE(false)); - EXPECT_TRUE(ABSL_PREDICT_FALSE(1 == 1)); - EXPECT_FALSE(ABSL_PREDICT_FALSE(1 == 2)); - - if (ABSL_PREDICT_FALSE(false)) ADD_FAILURE(); - if (!ABSL_PREDICT_FALSE(true)) ADD_FAILURE(); - - EXPECT_TRUE(ABSL_PREDICT_FALSE(true) && true); - EXPECT_TRUE(ABSL_PREDICT_FALSE(true) || false); -} - -TEST(PredictTest, OneEvaluation) { - // Verify that the expression is only evaluated once. - int x = 0; - if (ABSL_PREDICT_TRUE((++x) == 0)) ADD_FAILURE(); - EXPECT_EQ(x, 1); - if (ABSL_PREDICT_FALSE((++x) == 0)) ADD_FAILURE(); - EXPECT_EQ(x, 2); -} - -TEST(PredictTest, OperatorOrder) { - // Verify that operator order inside and outside the macro behaves well. - // These would fail for a naive '#define ABSL_PREDICT_TRUE(x) x' - EXPECT_TRUE(ABSL_PREDICT_TRUE(1 && 2) == true); - EXPECT_TRUE(ABSL_PREDICT_FALSE(1 && 2) == true); - EXPECT_TRUE(!ABSL_PREDICT_TRUE(1 == 2)); - EXPECT_TRUE(!ABSL_PREDICT_FALSE(1 == 2)); -} - -TEST(PredictTest, Pointer) { - const int x = 3; - const int *good_intptr = &x; - const int *null_intptr = nullptr; - EXPECT_TRUE(ABSL_PREDICT_TRUE(good_intptr)); - EXPECT_FALSE(ABSL_PREDICT_TRUE(null_intptr)); - EXPECT_TRUE(ABSL_PREDICT_FALSE(good_intptr)); - EXPECT_FALSE(ABSL_PREDICT_FALSE(null_intptr)); -} - -TEST(PredictTest, Optional) { - // Note: An optional's truth value is the value's existence, not its truth. - absl::optional has_value(false); - absl::optional no_value; - EXPECT_TRUE(ABSL_PREDICT_TRUE(has_value)); - EXPECT_FALSE(ABSL_PREDICT_TRUE(no_value)); - EXPECT_TRUE(ABSL_PREDICT_FALSE(has_value)); - EXPECT_FALSE(ABSL_PREDICT_FALSE(no_value)); -} - -class ImplictlyConvertibleToBool { - public: - explicit ImplictlyConvertibleToBool(bool value) : value_(value) {} - operator bool() const { // NOLINT(google-explicit-constructor) - return value_; - } - - private: - bool value_; -}; - -TEST(PredictTest, ImplicitBoolConversion) { - const ImplictlyConvertibleToBool is_true(true); - const ImplictlyConvertibleToBool is_false(false); - if (!ABSL_PREDICT_TRUE(is_true)) ADD_FAILURE(); - if (ABSL_PREDICT_TRUE(is_false)) ADD_FAILURE(); - if (!ABSL_PREDICT_FALSE(is_true)) ADD_FAILURE(); - if (ABSL_PREDICT_FALSE(is_false)) ADD_FAILURE(); -} - -class ExplictlyConvertibleToBool { - public: - explicit ExplictlyConvertibleToBool(bool value) : value_(value) {} - explicit operator bool() const { return value_; } - - private: - bool value_; -}; - -TEST(PredictTest, ExplicitBoolConversion) { - const ExplictlyConvertibleToBool is_true(true); - const ExplictlyConvertibleToBool is_false(false); - if (!ABSL_PREDICT_TRUE(is_true)) ADD_FAILURE(); - if (ABSL_PREDICT_TRUE(is_false)) ADD_FAILURE(); - if (!ABSL_PREDICT_FALSE(is_true)) ADD_FAILURE(); - if (ABSL_PREDICT_FALSE(is_false)) ADD_FAILURE(); -} - -} // namespace diff --git a/src/third_party/abseil-cpp/absl/base/options.h b/src/third_party/abseil-cpp/absl/base/options.h deleted file mode 100644 index b6de636d9b..0000000000 --- a/src/third_party/abseil-cpp/absl/base/options.h +++ /dev/null @@ -1,232 +0,0 @@ -// Copyright 2019 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// ----------------------------------------------------------------------------- -// File: options.h -// ----------------------------------------------------------------------------- -// -// This file contains Abseil configuration options for setting specific -// implementations instead of letting Abseil determine which implementation to -// use at compile-time. Setting these options may be useful for package or build -// managers who wish to guarantee ABI stability within binary builds (which are -// otherwise difficult to enforce). -// -// *** IMPORTANT NOTICE FOR PACKAGE MANAGERS: It is important that -// maintainers of package managers who wish to package Abseil read and -// understand this file! *** -// -// Abseil contains a number of possible configuration endpoints, based on -// parameters such as the detected platform, language version, or command-line -// flags used to invoke the underlying binary. As is the case with all -// libraries, binaries which contain Abseil code must ensure that separate -// packages use the same compiled copy of Abseil to avoid a diamond dependency -// problem, which can occur if two packages built with different Abseil -// configuration settings are linked together. Diamond dependency problems in -// C++ may manifest as violations to the One Definition Rule (ODR) (resulting in -// linker errors), or undefined behavior (resulting in crashes). -// -// Diamond dependency problems can be avoided if all packages utilize the same -// exact version of Abseil. Building from source code with the same compilation -// parameters is the easiest way to avoid such dependency problems. However, for -// package managers who cannot control such compilation parameters, we are -// providing the file to allow you to inject ABI (Application Binary Interface) -// stability across builds. Settings options in this file will neither change -// API nor ABI, providing a stable copy of Abseil between packages. -// -// Care must be taken to keep options within these configurations isolated -// from any other dynamic settings, such as command-line flags which could alter -// these options. This file is provided specifically to help build and package -// managers provide a stable copy of Abseil within their libraries and binaries; -// other developers should not have need to alter the contents of this file. -// -// ----------------------------------------------------------------------------- -// Usage -// ----------------------------------------------------------------------------- -// -// For any particular package release, set the appropriate definitions within -// this file to whatever value makes the most sense for your package(s). Note -// that, by default, most of these options, at the moment, affect the -// implementation of types; future options may affect other implementation -// details. -// -// NOTE: the defaults within this file all assume that Abseil can select the -// proper Abseil implementation at compile-time, which will not be sufficient -// to guarantee ABI stability to package managers. - -#ifndef ABSL_BASE_OPTIONS_H_ -#define ABSL_BASE_OPTIONS_H_ - -// ----------------------------------------------------------------------------- -// Type Compatibility Options -// ----------------------------------------------------------------------------- -// -// ABSL_OPTION_USE_STD_ANY -// -// This option controls whether absl::any is implemented as an alias to -// std::any, or as an independent implementation. -// -// A value of 0 means to use Abseil's implementation. This requires only C++11 -// support, and is expected to work on every toolchain we support. -// -// A value of 1 means to use an alias to std::any. This requires that all code -// using Abseil is built in C++17 mode or later. -// -// A value of 2 means to detect the C++ version being used to compile Abseil, -// and use an alias only if a working std::any is available. This option is -// useful when you are building your entire program, including all of its -// dependencies, from source. It should not be used otherwise -- for example, -// if you are distributing Abseil in a binary package manager -- since in -// mode 2, absl::any will name a different type, with a different mangled name -// and binary layout, depending on the compiler flags passed by the end user. -// For more info, see https://abseil.io/about/design/dropin-types. -// -// User code should not inspect this macro. To check in the preprocessor if -// absl::any is a typedef of std::any, use the feature macro ABSL_USES_STD_ANY. - -#define ABSL_OPTION_USE_STD_ANY 2 - - -// ABSL_OPTION_USE_STD_OPTIONAL -// -// This option controls whether absl::optional is implemented as an alias to -// std::optional, or as an independent implementation. -// -// A value of 0 means to use Abseil's implementation. This requires only C++11 -// support, and is expected to work on every toolchain we support. -// -// A value of 1 means to use an alias to std::optional. This requires that all -// code using Abseil is built in C++17 mode or later. -// -// A value of 2 means to detect the C++ version being used to compile Abseil, -// and use an alias only if a working std::optional is available. This option -// is useful when you are building your program from source. It should not be -// used otherwise -- for example, if you are distributing Abseil in a binary -// package manager -- since in mode 2, absl::optional will name a different -// type, with a different mangled name and binary layout, depending on the -// compiler flags passed by the end user. For more info, see -// https://abseil.io/about/design/dropin-types. - -// User code should not inspect this macro. To check in the preprocessor if -// absl::optional is a typedef of std::optional, use the feature macro -// ABSL_USES_STD_OPTIONAL. - -#define ABSL_OPTION_USE_STD_OPTIONAL 2 - - -// ABSL_OPTION_USE_STD_STRING_VIEW -// -// This option controls whether absl::string_view is implemented as an alias to -// std::string_view, or as an independent implementation. -// -// A value of 0 means to use Abseil's implementation. This requires only C++11 -// support, and is expected to work on every toolchain we support. -// -// A value of 1 means to use an alias to std::string_view. This requires that -// all code using Abseil is built in C++17 mode or later. -// -// A value of 2 means to detect the C++ version being used to compile Abseil, -// and use an alias only if a working std::string_view is available. This -// option is useful when you are building your program from source. It should -// not be used otherwise -- for example, if you are distributing Abseil in a -// binary package manager -- since in mode 2, absl::string_view will name a -// different type, with a different mangled name and binary layout, depending on -// the compiler flags passed by the end user. For more info, see -// https://abseil.io/about/design/dropin-types. -// -// User code should not inspect this macro. To check in the preprocessor if -// absl::string_view is a typedef of std::string_view, use the feature macro -// ABSL_USES_STD_STRING_VIEW. - -#define ABSL_OPTION_USE_STD_STRING_VIEW 2 - -// ABSL_OPTION_USE_STD_VARIANT -// -// This option controls whether absl::variant is implemented as an alias to -// std::variant, or as an independent implementation. -// -// A value of 0 means to use Abseil's implementation. This requires only C++11 -// support, and is expected to work on every toolchain we support. -// -// A value of 1 means to use an alias to std::variant. This requires that all -// code using Abseil is built in C++17 mode or later. -// -// A value of 2 means to detect the C++ version being used to compile Abseil, -// and use an alias only if a working std::variant is available. This option -// is useful when you are building your program from source. It should not be -// used otherwise -- for example, if you are distributing Abseil in a binary -// package manager -- since in mode 2, absl::variant will name a different -// type, with a different mangled name and binary layout, depending on the -// compiler flags passed by the end user. For more info, see -// https://abseil.io/about/design/dropin-types. -// -// User code should not inspect this macro. To check in the preprocessor if -// absl::variant is a typedef of std::variant, use the feature macro -// ABSL_USES_STD_VARIANT. - -#define ABSL_OPTION_USE_STD_VARIANT 2 - - -// ABSL_OPTION_USE_INLINE_NAMESPACE -// ABSL_OPTION_INLINE_NAMESPACE_NAME -// -// These options controls whether all entities in the absl namespace are -// contained within an inner inline namespace. This does not affect the -// user-visible API of Abseil, but it changes the mangled names of all symbols. -// -// This can be useful as a version tag if you are distributing Abseil in -// precompiled form. This will prevent a binary library build of Abseil with -// one inline namespace being used with headers configured with a different -// inline namespace name. Binary packagers are reminded that Abseil does not -// guarantee any ABI stability in Abseil, so any update of Abseil or -// configuration change in such a binary package should be combined with a -// new, unique value for the inline namespace name. -// -// A value of 0 means not to use inline namespaces. -// -// A value of 1 means to use an inline namespace with the given name inside -// namespace absl. If this is set, ABSL_OPTION_INLINE_NAMESPACE_NAME must also -// be changed to a new, unique identifier name. In particular "head" is not -// allowed. - -#define ABSL_OPTION_USE_INLINE_NAMESPACE 1 -#define ABSL_OPTION_INLINE_NAMESPACE_NAME lts_20230125 - -// ABSL_OPTION_HARDENED -// -// This option enables a "hardened" build in release mode (in this context, -// release mode is defined as a build where the `NDEBUG` macro is defined). -// -// A value of 0 means that "hardened" mode is not enabled. -// -// A value of 1 means that "hardened" mode is enabled. -// -// Hardened builds have additional security checks enabled when `NDEBUG` is -// defined. Defining `NDEBUG` is normally used to turn `assert()` macro into a -// no-op, as well as disabling other bespoke program consistency checks. By -// defining ABSL_OPTION_HARDENED to 1, a select set of checks remain enabled in -// release mode. These checks guard against programming errors that may lead to -// security vulnerabilities. In release mode, when one of these programming -// errors is encountered, the program will immediately abort, possibly without -// any attempt at logging. -// -// The checks enabled by this option are not free; they do incur runtime cost. -// -// The checks enabled by this option are always active when `NDEBUG` is not -// defined, even in the case when ABSL_OPTION_HARDENED is defined to 0. The -// checks enabled by this option may abort the program in a different way and -// log additional information when `NDEBUG` is not defined. - -#define ABSL_OPTION_HARDENED 0 - -#endif // ABSL_BASE_OPTIONS_H_ diff --git a/src/third_party/abseil-cpp/absl/base/policy_checks.h b/src/third_party/abseil-cpp/absl/base/policy_checks.h deleted file mode 100644 index b8cd4c9440..0000000000 --- a/src/third_party/abseil-cpp/absl/base/policy_checks.h +++ /dev/null @@ -1,113 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// ----------------------------------------------------------------------------- -// File: policy_checks.h -// ----------------------------------------------------------------------------- -// -// This header enforces a minimum set of policies at build time, such as the -// supported compiler and library versions. Unsupported configurations are -// reported with `#error`. This enforcement is best effort, so successfully -// compiling this header does not guarantee a supported configuration. - -#ifndef ABSL_BASE_POLICY_CHECKS_H_ -#define ABSL_BASE_POLICY_CHECKS_H_ - -// Included for the __GLIBC_PREREQ macro used below. -#include - -// Included for the _STLPORT_VERSION macro used below. -#if defined(__cplusplus) -#include -#endif - -// ----------------------------------------------------------------------------- -// Operating System Check -// ----------------------------------------------------------------------------- - -#if defined(__CYGWIN__) -#error "Cygwin is not supported." -#endif - -// ----------------------------------------------------------------------------- -// Toolchain Check -// ----------------------------------------------------------------------------- - -// We support Visual Studio 2017 (MSVC++ 15.0) and later. -// This minimum will go up. -#if defined(_MSC_VER) && _MSC_VER < 1910 && !defined(__clang__) -#error "This package requires Visual Studio 2017 (MSVC++ 15.0) or higher." -#endif - -// We support GCC 7 and later. -// This minimum will go up. -#if defined(__GNUC__) && !defined(__clang__) -#if __GNUC__ < 7 -#error "This package requires GCC 7 or higher." -#endif -#endif - -// We support Apple Xcode clang 4.2.1 (version 421.11.65) and later. -// This corresponds to Apple Xcode version 4.5. -// This minimum will go up. -#if defined(__apple_build_version__) && __apple_build_version__ < 4211165 -#error "This package requires __apple_build_version__ of 4211165 or higher." -#endif - -// ----------------------------------------------------------------------------- -// C++ Version Check -// ----------------------------------------------------------------------------- - -// Enforce C++14 as the minimum. -#if defined(_MSVC_LANG) -#if _MSVC_LANG < 201402L -#error "C++ versions less than C++14 are not supported." -#endif // _MSVC_LANG < 201402L -#elif defined(__cplusplus) -#if __cplusplus < 201402L -#error "C++ versions less than C++14 are not supported." -#endif // __cplusplus < 201402L -#endif - -// ----------------------------------------------------------------------------- -// Standard Library Check -// ----------------------------------------------------------------------------- - -#if defined(_STLPORT_VERSION) -#error "STLPort is not supported." -#endif - -// ----------------------------------------------------------------------------- -// `char` Size Check -// ----------------------------------------------------------------------------- - -// Abseil currently assumes CHAR_BIT == 8. If you would like to use Abseil on a -// platform where this is not the case, please provide us with the details about -// your platform so we can consider relaxing this requirement. -#if CHAR_BIT != 8 -#error "Abseil assumes CHAR_BIT == 8." -#endif - -// ----------------------------------------------------------------------------- -// `int` Size Check -// ----------------------------------------------------------------------------- - -// Abseil currently assumes that an int is 4 bytes. If you would like to use -// Abseil on a platform where this is not the case, please provide us with the -// details about your platform so we can consider relaxing this requirement. -#if INT_MAX < 2147483647 -#error "Abseil assumes that int is at least 4 bytes. " -#endif - -#endif // ABSL_BASE_POLICY_CHECKS_H_ diff --git a/src/third_party/abseil-cpp/absl/base/port.h b/src/third_party/abseil-cpp/absl/base/port.h deleted file mode 100644 index 5bc4d6cd95..0000000000 --- a/src/third_party/abseil-cpp/absl/base/port.h +++ /dev/null @@ -1,25 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// This files is a forwarding header for other headers containing various -// portability macros and functions. - -#ifndef ABSL_BASE_PORT_H_ -#define ABSL_BASE_PORT_H_ - -#include "absl/base/attributes.h" -#include "absl/base/config.h" -#include "absl/base/optimization.h" - -#endif // ABSL_BASE_PORT_H_ diff --git a/src/third_party/abseil-cpp/absl/base/raw_logging_test.cc b/src/third_party/abseil-cpp/absl/base/raw_logging_test.cc deleted file mode 100644 index 3d30bd3861..0000000000 --- a/src/third_party/abseil-cpp/absl/base/raw_logging_test.cc +++ /dev/null @@ -1,79 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// This test serves primarily as a compilation test for base/raw_logging.h. -// Raw logging testing is covered by logging_unittest.cc, which is not as -// portable as this test. - -#include "absl/base/internal/raw_logging.h" - -#include - -#include "gtest/gtest.h" -#include "absl/strings/str_cat.h" - -namespace { - -TEST(RawLoggingCompilationTest, Log) { - ABSL_RAW_LOG(INFO, "RAW INFO: %d", 1); - ABSL_RAW_LOG(INFO, "RAW INFO: %d %d", 1, 2); - ABSL_RAW_LOG(INFO, "RAW INFO: %d %d %d", 1, 2, 3); - ABSL_RAW_LOG(INFO, "RAW INFO: %d %d %d %d", 1, 2, 3, 4); - ABSL_RAW_LOG(INFO, "RAW INFO: %d %d %d %d %d", 1, 2, 3, 4, 5); - ABSL_RAW_LOG(WARNING, "RAW WARNING: %d", 1); - ABSL_RAW_LOG(ERROR, "RAW ERROR: %d", 1); -} - -TEST(RawLoggingCompilationTest, PassingCheck) { - ABSL_RAW_CHECK(true, "RAW CHECK"); -} - -// Not all platforms support output from raw log, so we don't verify any -// particular output for RAW check failures (expecting the empty string -// accomplishes this). This test is primarily a compilation test, but we -// are verifying process death when EXPECT_DEATH works for a platform. -const char kExpectedDeathOutput[] = ""; - -TEST(RawLoggingDeathTest, FailingCheck) { - EXPECT_DEATH_IF_SUPPORTED(ABSL_RAW_CHECK(1 == 0, "explanation"), - kExpectedDeathOutput); -} - -TEST(RawLoggingDeathTest, LogFatal) { - EXPECT_DEATH_IF_SUPPORTED(ABSL_RAW_LOG(FATAL, "my dog has fleas"), - kExpectedDeathOutput); -} - -TEST(InternalLog, CompilationTest) { - ABSL_INTERNAL_LOG(INFO, "Internal Log"); - std::string log_msg = "Internal Log"; - ABSL_INTERNAL_LOG(INFO, log_msg); - - ABSL_INTERNAL_LOG(INFO, log_msg + " 2"); - - float d = 1.1f; - ABSL_INTERNAL_LOG(INFO, absl::StrCat("Internal log ", 3, " + ", d)); -} - -TEST(InternalLogDeathTest, FailingCheck) { - EXPECT_DEATH_IF_SUPPORTED(ABSL_INTERNAL_CHECK(1 == 0, "explanation"), - kExpectedDeathOutput); -} - -TEST(InternalLogDeathTest, LogFatal) { - EXPECT_DEATH_IF_SUPPORTED(ABSL_INTERNAL_LOG(FATAL, "my dog has fleas"), - kExpectedDeathOutput); -} - -} // namespace diff --git a/src/third_party/abseil-cpp/absl/base/spinlock_test_common.cc b/src/third_party/abseil-cpp/absl/base/spinlock_test_common.cc deleted file mode 100644 index 52ecf58012..0000000000 --- a/src/third_party/abseil-cpp/absl/base/spinlock_test_common.cc +++ /dev/null @@ -1,272 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// A bunch of threads repeatedly hash an array of ints protected by a -// spinlock. If the spinlock is working properly, all elements of the -// array should be equal at the end of the test. - -#include -#include -#include -#include // NOLINT(build/c++11) -#include -#include - -#include "gtest/gtest.h" -#include "absl/base/attributes.h" -#include "absl/base/config.h" -#include "absl/base/internal/low_level_scheduling.h" -#include "absl/base/internal/scheduling_mode.h" -#include "absl/base/internal/spinlock.h" -#include "absl/base/internal/sysinfo.h" -#include "absl/base/macros.h" -#include "absl/synchronization/blocking_counter.h" -#include "absl/synchronization/notification.h" - -constexpr uint32_t kNumThreads = 10; -constexpr int32_t kIters = 1000; - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace base_internal { - -// This is defined outside of anonymous namespace so that it can be -// a friend of SpinLock to access protected methods for testing. -struct SpinLockTest { - static uint32_t EncodeWaitCycles(int64_t wait_start_time, - int64_t wait_end_time) { - return SpinLock::EncodeWaitCycles(wait_start_time, wait_end_time); - } - static int64_t DecodeWaitCycles(uint32_t lock_value) { - return SpinLock::DecodeWaitCycles(lock_value); - } -}; - -namespace { - -static constexpr size_t kArrayLength = 10; -static uint32_t values[kArrayLength]; - -ABSL_CONST_INIT static SpinLock static_cooperative_spinlock( - absl::kConstInit, base_internal::SCHEDULE_COOPERATIVE_AND_KERNEL); -ABSL_CONST_INIT static SpinLock static_noncooperative_spinlock( - absl::kConstInit, base_internal::SCHEDULE_KERNEL_ONLY); - -// Simple integer hash function based on the public domain lookup2 hash. -// http://burtleburtle.net/bob/c/lookup2.c -static uint32_t Hash32(uint32_t a, uint32_t c) { - uint32_t b = 0x9e3779b9UL; // The golden ratio; an arbitrary value. - a -= b; a -= c; a ^= (c >> 13); - b -= c; b -= a; b ^= (a << 8); - c -= a; c -= b; c ^= (b >> 13); - a -= b; a -= c; a ^= (c >> 12); - b -= c; b -= a; b ^= (a << 16); - c -= a; c -= b; c ^= (b >> 5); - a -= b; a -= c; a ^= (c >> 3); - b -= c; b -= a; b ^= (a << 10); - c -= a; c -= b; c ^= (b >> 15); - return c; -} - -static void TestFunction(uint32_t thread_salt, SpinLock* spinlock) { - for (int i = 0; i < kIters; i++) { - SpinLockHolder h(spinlock); - for (size_t j = 0; j < kArrayLength; j++) { - const size_t index = (j + thread_salt) % kArrayLength; - values[index] = Hash32(values[index], thread_salt); - std::this_thread::yield(); - } - } -} - -static void ThreadedTest(SpinLock* spinlock) { - std::vector threads; - threads.reserve(kNumThreads); - for (uint32_t i = 0; i < kNumThreads; ++i) { - threads.push_back(std::thread(TestFunction, i, spinlock)); - } - for (auto& thread : threads) { - thread.join(); - } - - SpinLockHolder h(spinlock); - for (size_t i = 1; i < kArrayLength; i++) { - EXPECT_EQ(values[0], values[i]); - } -} - -#ifndef ABSL_HAVE_THREAD_SANITIZER -static_assert(std::is_trivially_destructible(), ""); -#endif - -TEST(SpinLock, StackNonCooperativeDisablesScheduling) { - SpinLock spinlock(base_internal::SCHEDULE_KERNEL_ONLY); - spinlock.Lock(); - EXPECT_FALSE(base_internal::SchedulingGuard::ReschedulingIsAllowed()); - spinlock.Unlock(); -} - -TEST(SpinLock, StaticNonCooperativeDisablesScheduling) { - static_noncooperative_spinlock.Lock(); - EXPECT_FALSE(base_internal::SchedulingGuard::ReschedulingIsAllowed()); - static_noncooperative_spinlock.Unlock(); -} - -TEST(SpinLock, WaitCyclesEncoding) { - // These are implementation details not exported by SpinLock. - const int kProfileTimestampShift = 7; - const int kLockwordReservedShift = 3; - const uint32_t kSpinLockSleeper = 8; - - // We should be able to encode up to (1^kMaxCycleBits - 1) without clamping - // but the lower kProfileTimestampShift will be dropped. - const int kMaxCyclesShift = - 32 - kLockwordReservedShift + kProfileTimestampShift; - const int64_t kMaxCycles = (int64_t{1} << kMaxCyclesShift) - 1; - - // These bits should be zero after encoding. - const uint32_t kLockwordReservedMask = (1 << kLockwordReservedShift) - 1; - - // These bits are dropped when wait cycles are encoded. - const int64_t kProfileTimestampMask = (1 << kProfileTimestampShift) - 1; - - // Test a bunch of random values - std::default_random_engine generator; - // Shift to avoid overflow below. - std::uniform_int_distribution time_distribution( - 0, std::numeric_limits::max() >> 3); - std::uniform_int_distribution cycle_distribution(0, kMaxCycles); - - for (int i = 0; i < 100; i++) { - int64_t start_time = time_distribution(generator); - int64_t cycles = cycle_distribution(generator); - int64_t end_time = start_time + cycles; - uint32_t lock_value = SpinLockTest::EncodeWaitCycles(start_time, end_time); - EXPECT_EQ(0u, lock_value & kLockwordReservedMask); - int64_t decoded = SpinLockTest::DecodeWaitCycles(lock_value); - EXPECT_EQ(0, decoded & kProfileTimestampMask); - EXPECT_EQ(cycles & ~kProfileTimestampMask, decoded); - } - - // Test corner cases - int64_t start_time = time_distribution(generator); - EXPECT_EQ(kSpinLockSleeper, - SpinLockTest::EncodeWaitCycles(start_time, start_time)); - EXPECT_EQ(0, SpinLockTest::DecodeWaitCycles(0)); - EXPECT_EQ(0, SpinLockTest::DecodeWaitCycles(kLockwordReservedMask)); - EXPECT_EQ(kMaxCycles & ~kProfileTimestampMask, - SpinLockTest::DecodeWaitCycles(~kLockwordReservedMask)); - - // Check that we cannot produce kSpinLockSleeper during encoding. - int64_t sleeper_cycles = - kSpinLockSleeper << (kProfileTimestampShift - kLockwordReservedShift); - uint32_t sleeper_value = - SpinLockTest::EncodeWaitCycles(start_time, start_time + sleeper_cycles); - EXPECT_NE(sleeper_value, kSpinLockSleeper); - - // Test clamping - uint32_t max_value = - SpinLockTest::EncodeWaitCycles(start_time, start_time + kMaxCycles); - int64_t max_value_decoded = SpinLockTest::DecodeWaitCycles(max_value); - int64_t expected_max_value_decoded = kMaxCycles & ~kProfileTimestampMask; - EXPECT_EQ(expected_max_value_decoded, max_value_decoded); - - const int64_t step = (1 << kProfileTimestampShift); - uint32_t after_max_value = - SpinLockTest::EncodeWaitCycles(start_time, start_time + kMaxCycles + step); - int64_t after_max_value_decoded = - SpinLockTest::DecodeWaitCycles(after_max_value); - EXPECT_EQ(expected_max_value_decoded, after_max_value_decoded); - - uint32_t before_max_value = SpinLockTest::EncodeWaitCycles( - start_time, start_time + kMaxCycles - step); - int64_t before_max_value_decoded = - SpinLockTest::DecodeWaitCycles(before_max_value); - EXPECT_GT(expected_max_value_decoded, before_max_value_decoded); -} - -TEST(SpinLockWithThreads, StackSpinLock) { - SpinLock spinlock; - ThreadedTest(&spinlock); -} - -TEST(SpinLockWithThreads, StackCooperativeSpinLock) { - SpinLock spinlock(base_internal::SCHEDULE_COOPERATIVE_AND_KERNEL); - ThreadedTest(&spinlock); -} - -TEST(SpinLockWithThreads, StackNonCooperativeSpinLock) { - SpinLock spinlock(base_internal::SCHEDULE_KERNEL_ONLY); - ThreadedTest(&spinlock); -} - -TEST(SpinLockWithThreads, StaticCooperativeSpinLock) { - ThreadedTest(&static_cooperative_spinlock); -} - -TEST(SpinLockWithThreads, StaticNonCooperativeSpinLock) { - ThreadedTest(&static_noncooperative_spinlock); -} - -TEST(SpinLockWithThreads, DoesNotDeadlock) { - struct Helper { - static void NotifyThenLock(Notification* locked, SpinLock* spinlock, - BlockingCounter* b) { - locked->WaitForNotification(); // Wait for LockThenWait() to hold "s". - b->DecrementCount(); - SpinLockHolder l(spinlock); - } - - static void LockThenWait(Notification* locked, SpinLock* spinlock, - BlockingCounter* b) { - SpinLockHolder l(spinlock); - locked->Notify(); - b->Wait(); - } - - static void DeadlockTest(SpinLock* spinlock, int num_spinners) { - Notification locked; - BlockingCounter counter(num_spinners); - std::vector threads; - - threads.push_back( - std::thread(Helper::LockThenWait, &locked, spinlock, &counter)); - for (int i = 0; i < num_spinners; ++i) { - threads.push_back( - std::thread(Helper::NotifyThenLock, &locked, spinlock, &counter)); - } - - for (auto& thread : threads) { - thread.join(); - } - } - }; - - SpinLock stack_cooperative_spinlock( - base_internal::SCHEDULE_COOPERATIVE_AND_KERNEL); - SpinLock stack_noncooperative_spinlock(base_internal::SCHEDULE_KERNEL_ONLY); - Helper::DeadlockTest(&stack_cooperative_spinlock, - base_internal::NumCPUs() * 2); - Helper::DeadlockTest(&stack_noncooperative_spinlock, - base_internal::NumCPUs() * 2); - Helper::DeadlockTest(&static_cooperative_spinlock, - base_internal::NumCPUs() * 2); - Helper::DeadlockTest(&static_noncooperative_spinlock, - base_internal::NumCPUs() * 2); -} - -} // namespace -} // namespace base_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/src/third_party/abseil-cpp/absl/base/thread_annotations.h b/src/third_party/abseil-cpp/absl/base/thread_annotations.h deleted file mode 100644 index bc8a620347..0000000000 --- a/src/third_party/abseil-cpp/absl/base/thread_annotations.h +++ /dev/null @@ -1,335 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// ----------------------------------------------------------------------------- -// File: thread_annotations.h -// ----------------------------------------------------------------------------- -// -// This header file contains macro definitions for thread safety annotations -// that allow developers to document the locking policies of multi-threaded -// code. The annotations can also help program analysis tools to identify -// potential thread safety issues. -// -// These annotations are implemented using compiler attributes. Using the macros -// defined here instead of raw attributes allow for portability and future -// compatibility. -// -// When referring to mutexes in the arguments of the attributes, you should -// use variable names or more complex expressions (e.g. my_object->mutex_) -// that evaluate to a concrete mutex object whenever possible. If the mutex -// you want to refer to is not in scope, you may use a member pointer -// (e.g. &MyClass::mutex_) to refer to a mutex in some (unknown) object. - -#ifndef ABSL_BASE_THREAD_ANNOTATIONS_H_ -#define ABSL_BASE_THREAD_ANNOTATIONS_H_ - -#include "absl/base/attributes.h" -#include "absl/base/config.h" -// TODO(mbonadei): Remove after the backward compatibility period. -#include "absl/base/internal/thread_annotations.h" // IWYU pragma: export - -// ABSL_GUARDED_BY() -// -// Documents if a shared field or global variable needs to be protected by a -// mutex. ABSL_GUARDED_BY() allows the user to specify a particular mutex that -// should be held when accessing the annotated variable. -// -// Although this annotation (and ABSL_PT_GUARDED_BY, below) cannot be applied to -// local variables, a local variable and its associated mutex can often be -// combined into a small class or struct, thereby allowing the annotation. -// -// Example: -// -// class Foo { -// Mutex mu_; -// int p1_ ABSL_GUARDED_BY(mu_); -// ... -// }; -#if ABSL_HAVE_ATTRIBUTE(guarded_by) -#define ABSL_GUARDED_BY(x) __attribute__((guarded_by(x))) -#else -#define ABSL_GUARDED_BY(x) -#endif - -// ABSL_PT_GUARDED_BY() -// -// Documents if the memory location pointed to by a pointer should be guarded -// by a mutex when dereferencing the pointer. -// -// Example: -// class Foo { -// Mutex mu_; -// int *p1_ ABSL_PT_GUARDED_BY(mu_); -// ... -// }; -// -// Note that a pointer variable to a shared memory location could itself be a -// shared variable. -// -// Example: -// -// // `q_`, guarded by `mu1_`, points to a shared memory location that is -// // guarded by `mu2_`: -// int *q_ ABSL_GUARDED_BY(mu1_) ABSL_PT_GUARDED_BY(mu2_); -#if ABSL_HAVE_ATTRIBUTE(pt_guarded_by) -#define ABSL_PT_GUARDED_BY(x) __attribute__((pt_guarded_by(x))) -#else -#define ABSL_PT_GUARDED_BY(x) -#endif - -// ABSL_ACQUIRED_AFTER() / ABSL_ACQUIRED_BEFORE() -// -// Documents the acquisition order between locks that can be held -// simultaneously by a thread. For any two locks that need to be annotated -// to establish an acquisition order, only one of them needs the annotation. -// (i.e. You don't have to annotate both locks with both ABSL_ACQUIRED_AFTER -// and ABSL_ACQUIRED_BEFORE.) -// -// As with ABSL_GUARDED_BY, this is only applicable to mutexes that are shared -// fields or global variables. -// -// Example: -// -// Mutex m1_; -// Mutex m2_ ABSL_ACQUIRED_AFTER(m1_); -#if ABSL_HAVE_ATTRIBUTE(acquired_after) -#define ABSL_ACQUIRED_AFTER(...) __attribute__((acquired_after(__VA_ARGS__))) -#else -#define ABSL_ACQUIRED_AFTER(...) -#endif - -#if ABSL_HAVE_ATTRIBUTE(acquired_before) -#define ABSL_ACQUIRED_BEFORE(...) __attribute__((acquired_before(__VA_ARGS__))) -#else -#define ABSL_ACQUIRED_BEFORE(...) -#endif - -// ABSL_EXCLUSIVE_LOCKS_REQUIRED() / ABSL_SHARED_LOCKS_REQUIRED() -// -// Documents a function that expects a mutex to be held prior to entry. -// The mutex is expected to be held both on entry to, and exit from, the -// function. -// -// An exclusive lock allows read-write access to the guarded data member(s), and -// only one thread can acquire a lock exclusively at any one time. A shared lock -// allows read-only access, and any number of threads can acquire a shared lock -// concurrently. -// -// Generally, non-const methods should be annotated with -// ABSL_EXCLUSIVE_LOCKS_REQUIRED, while const methods should be annotated with -// ABSL_SHARED_LOCKS_REQUIRED. -// -// Example: -// -// Mutex mu1, mu2; -// int a ABSL_GUARDED_BY(mu1); -// int b ABSL_GUARDED_BY(mu2); -// -// void foo() ABSL_EXCLUSIVE_LOCKS_REQUIRED(mu1, mu2) { ... } -// void bar() const ABSL_SHARED_LOCKS_REQUIRED(mu1, mu2) { ... } -#if ABSL_HAVE_ATTRIBUTE(exclusive_locks_required) -#define ABSL_EXCLUSIVE_LOCKS_REQUIRED(...) \ - __attribute__((exclusive_locks_required(__VA_ARGS__))) -#else -#define ABSL_EXCLUSIVE_LOCKS_REQUIRED(...) -#endif - -#if ABSL_HAVE_ATTRIBUTE(shared_locks_required) -#define ABSL_SHARED_LOCKS_REQUIRED(...) \ - __attribute__((shared_locks_required(__VA_ARGS__))) -#else -#define ABSL_SHARED_LOCKS_REQUIRED(...) -#endif - -// ABSL_LOCKS_EXCLUDED() -// -// Documents the locks that cannot be held by callers of this function, as they -// might be acquired by this function (Abseil's `Mutex` locks are -// non-reentrant). -#if ABSL_HAVE_ATTRIBUTE(locks_excluded) -#define ABSL_LOCKS_EXCLUDED(...) __attribute__((locks_excluded(__VA_ARGS__))) -#else -#define ABSL_LOCKS_EXCLUDED(...) -#endif - -// ABSL_LOCK_RETURNED() -// -// Documents a function that returns a mutex without acquiring it. For example, -// a public getter method that returns a pointer to a private mutex should -// be annotated with ABSL_LOCK_RETURNED. -#if ABSL_HAVE_ATTRIBUTE(lock_returned) -#define ABSL_LOCK_RETURNED(x) __attribute__((lock_returned(x))) -#else -#define ABSL_LOCK_RETURNED(x) -#endif - -// ABSL_LOCKABLE -// -// Documents if a class/type is a lockable type (such as the `Mutex` class). -#if ABSL_HAVE_ATTRIBUTE(lockable) -#define ABSL_LOCKABLE __attribute__((lockable)) -#else -#define ABSL_LOCKABLE -#endif - -// ABSL_SCOPED_LOCKABLE -// -// Documents if a class does RAII locking (such as the `MutexLock` class). -// The constructor should use `LOCK_FUNCTION()` to specify the mutex that is -// acquired, and the destructor should use `UNLOCK_FUNCTION()` with no -// arguments; the analysis will assume that the destructor unlocks whatever the -// constructor locked. -#if ABSL_HAVE_ATTRIBUTE(scoped_lockable) -#define ABSL_SCOPED_LOCKABLE __attribute__((scoped_lockable)) -#else -#define ABSL_SCOPED_LOCKABLE -#endif - -// ABSL_EXCLUSIVE_LOCK_FUNCTION() -// -// Documents functions that acquire a lock in the body of a function, and do -// not release it. -#if ABSL_HAVE_ATTRIBUTE(exclusive_lock_function) -#define ABSL_EXCLUSIVE_LOCK_FUNCTION(...) \ - __attribute__((exclusive_lock_function(__VA_ARGS__))) -#else -#define ABSL_EXCLUSIVE_LOCK_FUNCTION(...) -#endif - -// ABSL_SHARED_LOCK_FUNCTION() -// -// Documents functions that acquire a shared (reader) lock in the body of a -// function, and do not release it. -#if ABSL_HAVE_ATTRIBUTE(shared_lock_function) -#define ABSL_SHARED_LOCK_FUNCTION(...) \ - __attribute__((shared_lock_function(__VA_ARGS__))) -#else -#define ABSL_SHARED_LOCK_FUNCTION(...) -#endif - -// ABSL_UNLOCK_FUNCTION() -// -// Documents functions that expect a lock to be held on entry to the function, -// and release it in the body of the function. -#if ABSL_HAVE_ATTRIBUTE(unlock_function) -#define ABSL_UNLOCK_FUNCTION(...) __attribute__((unlock_function(__VA_ARGS__))) -#else -#define ABSL_UNLOCK_FUNCTION(...) -#endif - -// ABSL_EXCLUSIVE_TRYLOCK_FUNCTION() / ABSL_SHARED_TRYLOCK_FUNCTION() -// -// Documents functions that try to acquire a lock, and return success or failure -// (or a non-boolean value that can be interpreted as a boolean). -// The first argument should be `true` for functions that return `true` on -// success, or `false` for functions that return `false` on success. The second -// argument specifies the mutex that is locked on success. If unspecified, this -// mutex is assumed to be `this`. -#if ABSL_HAVE_ATTRIBUTE(exclusive_trylock_function) -#define ABSL_EXCLUSIVE_TRYLOCK_FUNCTION(...) \ - __attribute__((exclusive_trylock_function(__VA_ARGS__))) -#else -#define ABSL_EXCLUSIVE_TRYLOCK_FUNCTION(...) -#endif - -#if ABSL_HAVE_ATTRIBUTE(shared_trylock_function) -#define ABSL_SHARED_TRYLOCK_FUNCTION(...) \ - __attribute__((shared_trylock_function(__VA_ARGS__))) -#else -#define ABSL_SHARED_TRYLOCK_FUNCTION(...) -#endif - -// ABSL_ASSERT_EXCLUSIVE_LOCK() / ABSL_ASSERT_SHARED_LOCK() -// -// Documents functions that dynamically check to see if a lock is held, and fail -// if it is not held. -#if ABSL_HAVE_ATTRIBUTE(assert_exclusive_lock) -#define ABSL_ASSERT_EXCLUSIVE_LOCK(...) \ - __attribute__((assert_exclusive_lock(__VA_ARGS__))) -#else -#define ABSL_ASSERT_EXCLUSIVE_LOCK(...) -#endif - -#if ABSL_HAVE_ATTRIBUTE(assert_shared_lock) -#define ABSL_ASSERT_SHARED_LOCK(...) \ - __attribute__((assert_shared_lock(__VA_ARGS__))) -#else -#define ABSL_ASSERT_SHARED_LOCK(...) -#endif - -// ABSL_NO_THREAD_SAFETY_ANALYSIS -// -// Turns off thread safety checking within the body of a particular function. -// This annotation is used to mark functions that are known to be correct, but -// the locking behavior is more complicated than the analyzer can handle. -#if ABSL_HAVE_ATTRIBUTE(no_thread_safety_analysis) -#define ABSL_NO_THREAD_SAFETY_ANALYSIS \ - __attribute__((no_thread_safety_analysis)) -#else -#define ABSL_NO_THREAD_SAFETY_ANALYSIS -#endif - -//------------------------------------------------------------------------------ -// Tool-Supplied Annotations -//------------------------------------------------------------------------------ - -// ABSL_TS_UNCHECKED should be placed around lock expressions that are not valid -// C++ syntax, but which are present for documentation purposes. These -// annotations will be ignored by the analysis. -#define ABSL_TS_UNCHECKED(x) "" - -// ABSL_TS_FIXME is used to mark lock expressions that are not valid C++ syntax. -// It is used by automated tools to mark and disable invalid expressions. -// The annotation should either be fixed, or changed to ABSL_TS_UNCHECKED. -#define ABSL_TS_FIXME(x) "" - -// Like ABSL_NO_THREAD_SAFETY_ANALYSIS, this turns off checking within the body -// of a particular function. However, this attribute is used to mark functions -// that are incorrect and need to be fixed. It is used by automated tools to -// avoid breaking the build when the analysis is updated. -// Code owners are expected to eventually fix the routine. -#define ABSL_NO_THREAD_SAFETY_ANALYSIS_FIXME ABSL_NO_THREAD_SAFETY_ANALYSIS - -// Similar to ABSL_NO_THREAD_SAFETY_ANALYSIS_FIXME, this macro marks a -// ABSL_GUARDED_BY annotation that needs to be fixed, because it is producing -// thread safety warning. It disables the ABSL_GUARDED_BY. -#define ABSL_GUARDED_BY_FIXME(x) - -// Disables warnings for a single read operation. This can be used to avoid -// warnings when it is known that the read is not actually involved in a race, -// but the compiler cannot confirm that. -#define ABSL_TS_UNCHECKED_READ(x) absl::base_internal::ts_unchecked_read(x) - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace base_internal { - -// Takes a reference to a guarded data member, and returns an unguarded -// reference. -// Do not use this function directly, use ABSL_TS_UNCHECKED_READ instead. -template -inline const T& ts_unchecked_read(const T& v) ABSL_NO_THREAD_SAFETY_ANALYSIS { - return v; -} - -template -inline T& ts_unchecked_read(T& v) ABSL_NO_THREAD_SAFETY_ANALYSIS { - return v; -} - -} // namespace base_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_BASE_THREAD_ANNOTATIONS_H_ diff --git a/src/third_party/abseil-cpp/absl/base/throw_delegate_test.cc b/src/third_party/abseil-cpp/absl/base/throw_delegate_test.cc deleted file mode 100644 index e74362b701..0000000000 --- a/src/third_party/abseil-cpp/absl/base/throw_delegate_test.cc +++ /dev/null @@ -1,175 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/base/internal/throw_delegate.h" - -#include -#include -#include - -#include "absl/base/config.h" -#include "gtest/gtest.h" - -namespace { - -using absl::base_internal::ThrowStdLogicError; -using absl::base_internal::ThrowStdInvalidArgument; -using absl::base_internal::ThrowStdDomainError; -using absl::base_internal::ThrowStdLengthError; -using absl::base_internal::ThrowStdOutOfRange; -using absl::base_internal::ThrowStdRuntimeError; -using absl::base_internal::ThrowStdRangeError; -using absl::base_internal::ThrowStdOverflowError; -using absl::base_internal::ThrowStdUnderflowError; -using absl::base_internal::ThrowStdBadFunctionCall; -using absl::base_internal::ThrowStdBadAlloc; - -constexpr const char* what_arg = "The quick brown fox jumps over the lazy dog"; - -template -void ExpectThrowChar(void (*f)(const char*)) { -#ifdef ABSL_HAVE_EXCEPTIONS - try { - f(what_arg); - FAIL() << "Didn't throw"; - } catch (const E& e) { - EXPECT_STREQ(e.what(), what_arg); - } -#else - EXPECT_DEATH_IF_SUPPORTED(f(what_arg), what_arg); -#endif -} - -template -void ExpectThrowString(void (*f)(const std::string&)) { -#ifdef ABSL_HAVE_EXCEPTIONS - try { - f(what_arg); - FAIL() << "Didn't throw"; - } catch (const E& e) { - EXPECT_STREQ(e.what(), what_arg); - } -#else - EXPECT_DEATH_IF_SUPPORTED(f(what_arg), what_arg); -#endif -} - -template -void ExpectThrowNoWhat(void (*f)()) { -#ifdef ABSL_HAVE_EXCEPTIONS - try { - f(); - FAIL() << "Didn't throw"; - } catch (const E& e) { - } -#else - EXPECT_DEATH_IF_SUPPORTED(f(), ""); -#endif -} - -TEST(ThrowDelegate, ThrowStdLogicErrorChar) { - ExpectThrowChar(ThrowStdLogicError); -} - -TEST(ThrowDelegate, ThrowStdInvalidArgumentChar) { - ExpectThrowChar(ThrowStdInvalidArgument); -} - -TEST(ThrowDelegate, ThrowStdDomainErrorChar) { - ExpectThrowChar(ThrowStdDomainError); -} - -TEST(ThrowDelegate, ThrowStdLengthErrorChar) { - ExpectThrowChar(ThrowStdLengthError); -} - -TEST(ThrowDelegate, ThrowStdOutOfRangeChar) { - ExpectThrowChar(ThrowStdOutOfRange); -} - -TEST(ThrowDelegate, ThrowStdRuntimeErrorChar) { - ExpectThrowChar(ThrowStdRuntimeError); -} - -TEST(ThrowDelegate, ThrowStdRangeErrorChar) { - ExpectThrowChar(ThrowStdRangeError); -} - -TEST(ThrowDelegate, ThrowStdOverflowErrorChar) { - ExpectThrowChar(ThrowStdOverflowError); -} - -TEST(ThrowDelegate, ThrowStdUnderflowErrorChar) { - ExpectThrowChar(ThrowStdUnderflowError); -} - -TEST(ThrowDelegate, ThrowStdLogicErrorString) { - ExpectThrowString(ThrowStdLogicError); -} - -TEST(ThrowDelegate, ThrowStdInvalidArgumentString) { - ExpectThrowString(ThrowStdInvalidArgument); -} - -TEST(ThrowDelegate, ThrowStdDomainErrorString) { - ExpectThrowString(ThrowStdDomainError); -} - -TEST(ThrowDelegate, ThrowStdLengthErrorString) { - ExpectThrowString(ThrowStdLengthError); -} - -TEST(ThrowDelegate, ThrowStdOutOfRangeString) { - ExpectThrowString(ThrowStdOutOfRange); -} - -TEST(ThrowDelegate, ThrowStdRuntimeErrorString) { - ExpectThrowString(ThrowStdRuntimeError); -} - -TEST(ThrowDelegate, ThrowStdRangeErrorString) { - ExpectThrowString(ThrowStdRangeError); -} - -TEST(ThrowDelegate, ThrowStdOverflowErrorString) { - ExpectThrowString(ThrowStdOverflowError); -} - -TEST(ThrowDelegate, ThrowStdUnderflowErrorString) { - ExpectThrowString(ThrowStdUnderflowError); -} - -TEST(ThrowDelegate, ThrowStdBadFunctionCallNoWhat) { -#ifdef ABSL_HAVE_EXCEPTIONS - try { - ThrowStdBadFunctionCall(); - FAIL() << "Didn't throw"; - } catch (const std::bad_function_call&) { - } -#ifdef _LIBCPP_VERSION - catch (const std::exception&) { - // https://reviews.llvm.org/D92397 causes issues with the vtable for - // std::bad_function_call when using libc++ as a shared library. - } -#endif -#else - EXPECT_DEATH_IF_SUPPORTED(ThrowStdBadFunctionCall(), ""); -#endif -} - -TEST(ThrowDelegate, ThrowStdBadAllocNoWhat) { - ExpectThrowNoWhat(ThrowStdBadAlloc); -} - -} // namespace diff --git a/src/third_party/abseil-cpp/absl/cleanup/BUILD.bazel b/src/third_party/abseil-cpp/absl/cleanup/BUILD.bazel deleted file mode 100644 index 2154d9f1a3..0000000000 --- a/src/third_party/abseil-cpp/absl/cleanup/BUILD.bazel +++ /dev/null @@ -1,65 +0,0 @@ -# Copyright 2021 The Abseil Authors. -# -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at -# -# https://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. - -load( - "//absl:copts/configure_copts.bzl", - "ABSL_DEFAULT_COPTS", - "ABSL_DEFAULT_LINKOPTS", - "ABSL_TEST_COPTS", -) - -package(default_visibility = ["//visibility:public"]) - -licenses(["notice"]) - -cc_library( - name = "cleanup_internal", - hdrs = ["internal/cleanup.h"], - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - "//absl/base:base_internal", - "//absl/base:core_headers", - "//absl/utility", - ], -) - -cc_library( - name = "cleanup", - hdrs = [ - "cleanup.h", - ], - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":cleanup_internal", - "//absl/base:config", - "//absl/base:core_headers", - ], -) - -cc_test( - name = "cleanup_test", - size = "small", - srcs = [ - "cleanup_test.cc", - ], - copts = ABSL_TEST_COPTS, - deps = [ - ":cleanup", - "//absl/base:config", - "//absl/utility", - "@com_google_googletest//:gtest_main", - ], -) diff --git a/src/third_party/abseil-cpp/absl/cleanup/CMakeLists.txt b/src/third_party/abseil-cpp/absl/cleanup/CMakeLists.txt deleted file mode 100644 index f5af40b44c..0000000000 --- a/src/third_party/abseil-cpp/absl/cleanup/CMakeLists.txt +++ /dev/null @@ -1,56 +0,0 @@ -# Copyright 2021 The Abseil Authors. -# -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at -# -# https://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. - -# Internal-only target, do not depend on directly. -absl_cc_library( - NAME - cleanup_internal - HDRS - "internal/cleanup.h" - COPTS - ${ABSL_DEFAULT_COPTS} - DEPS - absl::base_internal - absl::core_headers - absl::utility - PUBLIC -) - -absl_cc_library( - NAME - cleanup - HDRS - "cleanup.h" - COPTS - ${ABSL_DEFAULT_COPTS} - DEPS - absl::cleanup_internal - absl::config - absl::core_headers - PUBLIC -) - -absl_cc_test( - NAME - cleanup_test - SRCS - "cleanup_test.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::cleanup - absl::config - absl::utility - GTest::gmock_main -) diff --git a/src/third_party/abseil-cpp/absl/cleanup/cleanup.h b/src/third_party/abseil-cpp/absl/cleanup/cleanup.h deleted file mode 100644 index 960ccd080e..0000000000 --- a/src/third_party/abseil-cpp/absl/cleanup/cleanup.h +++ /dev/null @@ -1,140 +0,0 @@ -// Copyright 2021 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// ----------------------------------------------------------------------------- -// File: cleanup.h -// ----------------------------------------------------------------------------- -// -// `absl::Cleanup` implements the scope guard idiom, invoking the contained -// callback's `operator()() &&` on scope exit. -// -// Example: -// -// ``` -// absl::Status CopyGoodData(const char* source_path, const char* sink_path) { -// FILE* source_file = fopen(source_path, "r"); -// if (source_file == nullptr) { -// return absl::NotFoundError("No source file"); // No cleanups execute -// } -// -// // C++17 style cleanup using class template argument deduction -// absl::Cleanup source_closer = [source_file] { fclose(source_file); }; -// -// FILE* sink_file = fopen(sink_path, "w"); -// if (sink_file == nullptr) { -// return absl::NotFoundError("No sink file"); // First cleanup executes -// } -// -// // C++11 style cleanup using the factory function -// auto sink_closer = absl::MakeCleanup([sink_file] { fclose(sink_file); }); -// -// Data data; -// while (ReadData(source_file, &data)) { -// if (!data.IsGood()) { -// absl::Status result = absl::FailedPreconditionError("Read bad data"); -// return result; // Both cleanups execute -// } -// SaveData(sink_file, &data); -// } -// -// return absl::OkStatus(); // Both cleanups execute -// } -// ``` -// -// Methods: -// -// `std::move(cleanup).Cancel()` will prevent the callback from executing. -// -// `std::move(cleanup).Invoke()` will execute the callback early, before -// destruction, and prevent the callback from executing in the destructor. -// -// Usage: -// -// `absl::Cleanup` is not an interface type. It is only intended to be used -// within the body of a function. It is not a value type and instead models a -// control flow construct. Check out `defer` in Golang for something similar. - -#ifndef ABSL_CLEANUP_CLEANUP_H_ -#define ABSL_CLEANUP_CLEANUP_H_ - -#include - -#include "absl/base/config.h" -#include "absl/base/macros.h" -#include "absl/cleanup/internal/cleanup.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN - -template -class ABSL_MUST_USE_RESULT Cleanup final { - static_assert(cleanup_internal::WasDeduced(), - "Explicit template parameters are not supported."); - - static_assert(cleanup_internal::ReturnsVoid(), - "Callbacks that return values are not supported."); - - public: - Cleanup(Callback callback) : storage_(std::move(callback)) {} // NOLINT - - Cleanup(Cleanup&& other) = default; - - void Cancel() && { - ABSL_HARDENING_ASSERT(storage_.IsCallbackEngaged()); - storage_.DestroyCallback(); - } - - void Invoke() && { - ABSL_HARDENING_ASSERT(storage_.IsCallbackEngaged()); - storage_.InvokeCallback(); - storage_.DestroyCallback(); - } - - ~Cleanup() { - if (storage_.IsCallbackEngaged()) { - storage_.InvokeCallback(); - storage_.DestroyCallback(); - } - } - - private: - cleanup_internal::Storage storage_; -}; - -// `absl::Cleanup c = /* callback */;` -// -// C++17 type deduction API for creating an instance of `absl::Cleanup` -#if defined(ABSL_HAVE_CLASS_TEMPLATE_ARGUMENT_DEDUCTION) -template -Cleanup(Callback callback) -> Cleanup; -#endif // defined(ABSL_HAVE_CLASS_TEMPLATE_ARGUMENT_DEDUCTION) - -// `auto c = absl::MakeCleanup(/* callback */);` -// -// C++11 type deduction API for creating an instance of `absl::Cleanup` -template -absl::Cleanup MakeCleanup(Callback callback) { - static_assert(cleanup_internal::WasDeduced(), - "Explicit template parameters are not supported."); - - static_assert(cleanup_internal::ReturnsVoid(), - "Callbacks that return values are not supported."); - - return {std::move(callback)}; -} - -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_CLEANUP_CLEANUP_H_ diff --git a/src/third_party/abseil-cpp/absl/cleanup/cleanup_test.cc b/src/third_party/abseil-cpp/absl/cleanup/cleanup_test.cc deleted file mode 100644 index 46b885899c..0000000000 --- a/src/third_party/abseil-cpp/absl/cleanup/cleanup_test.cc +++ /dev/null @@ -1,311 +0,0 @@ -// Copyright 2021 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/cleanup/cleanup.h" - -#include -#include -#include - -#include "gtest/gtest.h" -#include "absl/base/config.h" -#include "absl/utility/utility.h" - -namespace { - -using Tag = absl::cleanup_internal::Tag; - -template -constexpr bool IsSame() { - return (std::is_same::value); -} - -struct IdentityFactory { - template - static Callback AsCallback(Callback callback) { - return Callback(std::move(callback)); - } -}; - -// `FunctorClass` is a type used for testing `absl::Cleanup`. It is intended to -// represent users that make their own move-only callback types outside of -// `std::function` and lambda literals. -class FunctorClass { - using Callback = std::function; - - public: - explicit FunctorClass(Callback callback) : callback_(std::move(callback)) {} - - FunctorClass(FunctorClass&& other) - : callback_(absl::exchange(other.callback_, Callback())) {} - - FunctorClass(const FunctorClass&) = delete; - - FunctorClass& operator=(const FunctorClass&) = delete; - - FunctorClass& operator=(FunctorClass&&) = delete; - - void operator()() const& = delete; - - void operator()() && { - ASSERT_TRUE(callback_); - callback_(); - callback_ = nullptr; - } - - private: - Callback callback_; -}; - -struct FunctorClassFactory { - template - static FunctorClass AsCallback(Callback callback) { - return FunctorClass(std::move(callback)); - } -}; - -struct StdFunctionFactory { - template - static std::function AsCallback(Callback callback) { - return std::function(std::move(callback)); - } -}; - -using CleanupTestParams = - ::testing::Types; -template -struct CleanupTest : public ::testing::Test {}; -TYPED_TEST_SUITE(CleanupTest, CleanupTestParams); - -bool fn_ptr_called = false; -void FnPtrFunction() { fn_ptr_called = true; } - -TYPED_TEST(CleanupTest, FactoryProducesCorrectType) { - { - auto callback = TypeParam::AsCallback([] {}); - auto cleanup = absl::MakeCleanup(std::move(callback)); - - static_assert( - IsSame, decltype(cleanup)>(), - ""); - } - - { - auto cleanup = absl::MakeCleanup(&FnPtrFunction); - - static_assert(IsSame, decltype(cleanup)>(), - ""); - } - - { - auto cleanup = absl::MakeCleanup(FnPtrFunction); - - static_assert(IsSame, decltype(cleanup)>(), - ""); - } -} - -#if defined(ABSL_HAVE_CLASS_TEMPLATE_ARGUMENT_DEDUCTION) -TYPED_TEST(CleanupTest, CTADProducesCorrectType) { - { - auto callback = TypeParam::AsCallback([] {}); - absl::Cleanup cleanup = std::move(callback); - - static_assert( - IsSame, decltype(cleanup)>(), - ""); - } - - { - absl::Cleanup cleanup = &FnPtrFunction; - - static_assert(IsSame, decltype(cleanup)>(), - ""); - } - - { - absl::Cleanup cleanup = FnPtrFunction; - - static_assert(IsSame, decltype(cleanup)>(), - ""); - } -} - -TYPED_TEST(CleanupTest, FactoryAndCTADProduceSameType) { - { - auto callback = IdentityFactory::AsCallback([] {}); - auto factory_cleanup = absl::MakeCleanup(callback); - absl::Cleanup deduction_cleanup = callback; - - static_assert( - IsSame(), ""); - } - - { - auto factory_cleanup = - absl::MakeCleanup(FunctorClassFactory::AsCallback([] {})); - absl::Cleanup deduction_cleanup = FunctorClassFactory::AsCallback([] {}); - - static_assert( - IsSame(), ""); - } - - { - auto factory_cleanup = - absl::MakeCleanup(StdFunctionFactory::AsCallback([] {})); - absl::Cleanup deduction_cleanup = StdFunctionFactory::AsCallback([] {}); - - static_assert( - IsSame(), ""); - } - - { - auto factory_cleanup = absl::MakeCleanup(&FnPtrFunction); - absl::Cleanup deduction_cleanup = &FnPtrFunction; - - static_assert( - IsSame(), ""); - } - - { - auto factory_cleanup = absl::MakeCleanup(FnPtrFunction); - absl::Cleanup deduction_cleanup = FnPtrFunction; - - static_assert( - IsSame(), ""); - } -} -#endif // defined(ABSL_HAVE_CLASS_TEMPLATE_ARGUMENT_DEDUCTION) - -TYPED_TEST(CleanupTest, BasicUsage) { - bool called = false; - - { - auto cleanup = - absl::MakeCleanup(TypeParam::AsCallback([&called] { called = true; })); - EXPECT_FALSE(called); // Constructor shouldn't invoke the callback - } - - EXPECT_TRUE(called); // Destructor should invoke the callback -} - -TYPED_TEST(CleanupTest, BasicUsageWithFunctionPointer) { - fn_ptr_called = false; - - { - auto cleanup = absl::MakeCleanup(TypeParam::AsCallback(&FnPtrFunction)); - EXPECT_FALSE(fn_ptr_called); // Constructor shouldn't invoke the callback - } - - EXPECT_TRUE(fn_ptr_called); // Destructor should invoke the callback -} - -TYPED_TEST(CleanupTest, Cancel) { - bool called = false; - - { - auto cleanup = - absl::MakeCleanup(TypeParam::AsCallback([&called] { called = true; })); - EXPECT_FALSE(called); // Constructor shouldn't invoke the callback - - std::move(cleanup).Cancel(); - EXPECT_FALSE(called); // Cancel shouldn't invoke the callback - } - - EXPECT_FALSE(called); // Destructor shouldn't invoke the callback -} - -TYPED_TEST(CleanupTest, Invoke) { - bool called = false; - - { - auto cleanup = - absl::MakeCleanup(TypeParam::AsCallback([&called] { called = true; })); - EXPECT_FALSE(called); // Constructor shouldn't invoke the callback - - std::move(cleanup).Invoke(); - EXPECT_TRUE(called); // Invoke should invoke the callback - - called = false; // Reset tracker before destructor runs - } - - EXPECT_FALSE(called); // Destructor shouldn't invoke the callback -} - -TYPED_TEST(CleanupTest, Move) { - bool called = false; - - { - auto moved_from_cleanup = - absl::MakeCleanup(TypeParam::AsCallback([&called] { called = true; })); - EXPECT_FALSE(called); // Constructor shouldn't invoke the callback - - { - auto moved_to_cleanup = std::move(moved_from_cleanup); - EXPECT_FALSE(called); // Move shouldn't invoke the callback - } - - EXPECT_TRUE(called); // Destructor should invoke the callback - - called = false; // Reset tracker before destructor runs - } - - EXPECT_FALSE(called); // Destructor shouldn't invoke the callback -} - -int DestructionCount = 0; - -struct DestructionCounter { - void operator()() {} - - ~DestructionCounter() { ++DestructionCount; } -}; - -TYPED_TEST(CleanupTest, DestructorDestroys) { - { - auto cleanup = - absl::MakeCleanup(TypeParam::AsCallback(DestructionCounter())); - DestructionCount = 0; - } - - EXPECT_EQ(DestructionCount, 1); // Engaged cleanup destroys -} - -TYPED_TEST(CleanupTest, CancelDestroys) { - { - auto cleanup = - absl::MakeCleanup(TypeParam::AsCallback(DestructionCounter())); - DestructionCount = 0; - - std::move(cleanup).Cancel(); - EXPECT_EQ(DestructionCount, 1); // Cancel destroys - } - - EXPECT_EQ(DestructionCount, 1); // Canceled cleanup does not double destroy -} - -TYPED_TEST(CleanupTest, InvokeDestroys) { - { - auto cleanup = - absl::MakeCleanup(TypeParam::AsCallback(DestructionCounter())); - DestructionCount = 0; - - std::move(cleanup).Invoke(); - EXPECT_EQ(DestructionCount, 1); // Invoke destroys - } - - EXPECT_EQ(DestructionCount, 1); // Invoked cleanup does not double destroy -} - -} // namespace diff --git a/src/third_party/abseil-cpp/absl/cleanup/internal/cleanup.h b/src/third_party/abseil-cpp/absl/cleanup/internal/cleanup.h deleted file mode 100644 index 2783fcb7c1..0000000000 --- a/src/third_party/abseil-cpp/absl/cleanup/internal/cleanup.h +++ /dev/null @@ -1,100 +0,0 @@ -// Copyright 2021 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#ifndef ABSL_CLEANUP_INTERNAL_CLEANUP_H_ -#define ABSL_CLEANUP_INTERNAL_CLEANUP_H_ - -#include -#include -#include - -#include "absl/base/internal/invoke.h" -#include "absl/base/macros.h" -#include "absl/base/thread_annotations.h" -#include "absl/utility/utility.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN - -namespace cleanup_internal { - -struct Tag {}; - -template -constexpr bool WasDeduced() { - return (std::is_same::value) && - (sizeof...(Args) == 0); -} - -template -constexpr bool ReturnsVoid() { - return (std::is_same, void>::value); -} - -template -class Storage { - public: - Storage() = delete; - - explicit Storage(Callback callback) { - // Placement-new into a character buffer is used for eager destruction when - // the cleanup is invoked or cancelled. To ensure this optimizes well, the - // behavior is implemented locally instead of using an absl::optional. - ::new (GetCallbackBuffer()) Callback(std::move(callback)); - is_callback_engaged_ = true; - } - - Storage(Storage&& other) { - ABSL_HARDENING_ASSERT(other.IsCallbackEngaged()); - - ::new (GetCallbackBuffer()) Callback(std::move(other.GetCallback())); - is_callback_engaged_ = true; - - other.DestroyCallback(); - } - - Storage(const Storage& other) = delete; - - Storage& operator=(Storage&& other) = delete; - - Storage& operator=(const Storage& other) = delete; - - void* GetCallbackBuffer() { return static_cast(+callback_buffer_); } - - Callback& GetCallback() { - return *reinterpret_cast(GetCallbackBuffer()); - } - - bool IsCallbackEngaged() const { return is_callback_engaged_; } - - void DestroyCallback() { - is_callback_engaged_ = false; - GetCallback().~Callback(); - } - - void InvokeCallback() ABSL_NO_THREAD_SAFETY_ANALYSIS { - std::move(GetCallback())(); - } - - private: - bool is_callback_engaged_; - alignas(Callback) char callback_buffer_[sizeof(Callback)]; -}; - -} // namespace cleanup_internal - -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_CLEANUP_INTERNAL_CLEANUP_H_ diff --git a/src/third_party/abseil-cpp/absl/container/BUILD.bazel b/src/third_party/abseil-cpp/absl/container/BUILD.bazel deleted file mode 100644 index 7a966d63fe..0000000000 --- a/src/third_party/abseil-cpp/absl/container/BUILD.bazel +++ /dev/null @@ -1,1031 +0,0 @@ -# -# Copyright 2017 The Abseil Authors. -# -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at -# -# https://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. -# - -load( - "//absl:copts/configure_copts.bzl", - "ABSL_DEFAULT_COPTS", - "ABSL_DEFAULT_LINKOPTS", - "ABSL_TEST_COPTS", -) - -package(default_visibility = ["//visibility:public"]) - -licenses(["notice"]) - -cc_library( - name = "compressed_tuple", - hdrs = ["internal/compressed_tuple.h"], - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - "//absl/utility", - ], -) - -cc_test( - name = "compressed_tuple_test", - srcs = ["internal/compressed_tuple_test.cc"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":compressed_tuple", - ":test_instance_tracker", - "//absl/memory", - "//absl/types:any", - "//absl/types:optional", - "//absl/utility", - "@com_google_googletest//:gtest_main", - ], -) - -cc_library( - name = "fixed_array", - hdrs = ["fixed_array.h"], - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":compressed_tuple", - "//absl/algorithm", - "//absl/base:config", - "//absl/base:core_headers", - "//absl/base:dynamic_annotations", - "//absl/base:throw_delegate", - "//absl/memory", - ], -) - -cc_test( - name = "fixed_array_test", - srcs = ["fixed_array_test.cc"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":counting_allocator", - ":fixed_array", - "//absl/base:config", - "//absl/base:exception_testing", - "//absl/hash:hash_testing", - "//absl/memory", - "@com_google_googletest//:gtest_main", - ], -) - -cc_test( - name = "fixed_array_exception_safety_test", - srcs = ["fixed_array_exception_safety_test.cc"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":fixed_array", - "//absl/base:config", - "//absl/base:exception_safety_testing", - "@com_google_googletest//:gtest_main", - ], -) - -cc_binary( - name = "fixed_array_benchmark", - testonly = 1, - srcs = ["fixed_array_benchmark.cc"], - copts = ABSL_TEST_COPTS + ["$(STACK_FRAME_UNLIMITED)"], - linkopts = ABSL_DEFAULT_LINKOPTS, - tags = ["benchmark"], - deps = [ - ":fixed_array", - "@com_github_google_benchmark//:benchmark_main", - ], -) - -cc_library( - name = "inlined_vector_internal", - hdrs = ["internal/inlined_vector.h"], - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":compressed_tuple", - "//absl/base:core_headers", - "//absl/memory", - "//absl/meta:type_traits", - "//absl/types:span", - ], -) - -cc_library( - name = "inlined_vector", - hdrs = ["inlined_vector.h"], - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":inlined_vector_internal", - "//absl/algorithm", - "//absl/base:core_headers", - "//absl/base:throw_delegate", - "//absl/memory", - "//absl/meta:type_traits", - ], -) - -cc_library( - name = "counting_allocator", - testonly = 1, - hdrs = ["internal/counting_allocator.h"], - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - visibility = ["//visibility:private"], - deps = ["//absl/base:config"], -) - -cc_test( - name = "inlined_vector_test", - srcs = ["inlined_vector_test.cc"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":counting_allocator", - ":inlined_vector", - ":test_instance_tracker", - "//absl/base:config", - "//absl/base:core_headers", - "//absl/base:exception_testing", - "//absl/base:raw_logging_internal", - "//absl/hash:hash_testing", - "//absl/memory", - "//absl/strings", - "@com_google_googletest//:gtest_main", - ], -) - -cc_binary( - name = "inlined_vector_benchmark", - testonly = 1, - srcs = ["inlined_vector_benchmark.cc"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - tags = ["benchmark"], - deps = [ - ":inlined_vector", - "//absl/base:core_headers", - "//absl/base:raw_logging_internal", - "//absl/strings", - "@com_github_google_benchmark//:benchmark_main", - ], -) - -cc_test( - name = "inlined_vector_exception_safety_test", - srcs = ["inlined_vector_exception_safety_test.cc"], - copts = ABSL_TEST_COPTS, - deps = [ - ":inlined_vector", - "//absl/base:config", - "//absl/base:exception_safety_testing", - "@com_google_googletest//:gtest_main", - ], -) - -cc_library( - name = "test_instance_tracker", - testonly = 1, - srcs = ["internal/test_instance_tracker.cc"], - hdrs = ["internal/test_instance_tracker.h"], - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - visibility = [ - "//absl:__subpackages__", - ], - deps = ["//absl/types:compare"], -) - -cc_test( - name = "test_instance_tracker_test", - srcs = ["internal/test_instance_tracker_test.cc"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":test_instance_tracker", - "@com_google_googletest//:gtest_main", - ], -) - -NOTEST_TAGS_MOBILE = [ - "no_test_android_arm", - "no_test_android_arm64", - "no_test_android_x86", - "no_test_ios_x86_64", -] - -cc_library( - name = "flat_hash_map", - hdrs = ["flat_hash_map.h"], - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":container_memory", - ":hash_function_defaults", - ":raw_hash_map", - "//absl/algorithm:container", - "//absl/base:core_headers", - "//absl/memory", - ], -) - -cc_test( - name = "flat_hash_map_test", - srcs = ["flat_hash_map_test.cc"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - tags = ["no_test_loonix"], - deps = [ - ":flat_hash_map", - ":hash_generator_testing", - ":unordered_map_constructor_test", - ":unordered_map_lookup_test", - ":unordered_map_members_test", - ":unordered_map_modifiers_test", - "//absl/base:raw_logging_internal", - "//absl/types:any", - "@com_google_googletest//:gtest_main", - ], -) - -cc_library( - name = "flat_hash_set", - hdrs = ["flat_hash_set.h"], - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":container_memory", - ":hash_function_defaults", - ":raw_hash_set", - "//absl/algorithm:container", - "//absl/base:core_headers", - "//absl/memory", - ], -) - -cc_test( - name = "flat_hash_set_test", - srcs = ["flat_hash_set_test.cc"], - copts = ABSL_TEST_COPTS + ["-DUNORDERED_SET_CXX17"], - linkopts = ABSL_DEFAULT_LINKOPTS, - tags = ["no_test_loonix"], - deps = [ - ":flat_hash_set", - ":hash_generator_testing", - ":unordered_set_constructor_test", - ":unordered_set_lookup_test", - ":unordered_set_members_test", - ":unordered_set_modifiers_test", - "//absl/base:raw_logging_internal", - "//absl/memory", - "//absl/strings", - "@com_google_googletest//:gtest_main", - ], -) - -cc_library( - name = "node_hash_map", - hdrs = ["node_hash_map.h"], - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":container_memory", - ":hash_function_defaults", - ":node_slot_policy", - ":raw_hash_map", - "//absl/algorithm:container", - "//absl/base:core_headers", - "//absl/memory", - ], -) - -cc_test( - name = "node_hash_map_test", - srcs = ["node_hash_map_test.cc"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - tags = ["no_test_loonix"], - deps = [ - ":hash_generator_testing", - ":node_hash_map", - ":tracked", - ":unordered_map_constructor_test", - ":unordered_map_lookup_test", - ":unordered_map_members_test", - ":unordered_map_modifiers_test", - "@com_google_googletest//:gtest_main", - ], -) - -cc_library( - name = "node_hash_set", - hdrs = ["node_hash_set.h"], - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":hash_function_defaults", - ":node_slot_policy", - ":raw_hash_set", - "//absl/algorithm:container", - "//absl/base:core_headers", - "//absl/memory", - ], -) - -cc_test( - name = "node_hash_set_test", - srcs = ["node_hash_set_test.cc"], - copts = ABSL_TEST_COPTS + ["-DUNORDERED_SET_CXX17"], - linkopts = ABSL_DEFAULT_LINKOPTS, - tags = ["no_test_loonix"], - deps = [ - ":node_hash_set", - ":unordered_set_constructor_test", - ":unordered_set_lookup_test", - ":unordered_set_members_test", - ":unordered_set_modifiers_test", - "@com_google_googletest//:gtest_main", - ], -) - -cc_library( - name = "container_memory", - hdrs = ["internal/container_memory.h"], - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - "//absl/base:config", - "//absl/memory", - "//absl/meta:type_traits", - "//absl/utility", - ], -) - -cc_test( - name = "container_memory_test", - srcs = ["internal/container_memory_test.cc"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - tags = ["no_test_loonix"], - deps = [ - ":container_memory", - ":test_instance_tracker", - "//absl/strings", - "@com_google_googletest//:gtest_main", - ], -) - -cc_library( - name = "hash_function_defaults", - hdrs = ["internal/hash_function_defaults.h"], - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - visibility = [ - "//visibility:private", - ], - deps = [ - "//absl/base:config", - "//absl/hash", - "//absl/strings", - "//absl/strings:cord", - ], -) - -cc_test( - name = "hash_function_defaults_test", - srcs = ["internal/hash_function_defaults_test.cc"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - tags = NOTEST_TAGS_MOBILE + ["no_test_loonix"], - deps = [ - ":hash_function_defaults", - "//absl/hash", - "//absl/random", - "//absl/strings", - "//absl/strings:cord", - "//absl/strings:cord_test_helpers", - "@com_google_googletest//:gtest_main", - ], -) - -cc_library( - name = "hash_generator_testing", - testonly = 1, - srcs = ["internal/hash_generator_testing.cc"], - hdrs = ["internal/hash_generator_testing.h"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":hash_policy_testing", - "//absl/memory", - "//absl/meta:type_traits", - "//absl/strings", - ], -) - -cc_library( - name = "hash_policy_testing", - testonly = 1, - hdrs = ["internal/hash_policy_testing.h"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - "//absl/hash", - "//absl/strings", - ], -) - -cc_test( - name = "hash_policy_testing_test", - srcs = ["internal/hash_policy_testing_test.cc"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":hash_policy_testing", - "@com_google_googletest//:gtest_main", - ], -) - -cc_library( - name = "hash_policy_traits", - hdrs = ["internal/hash_policy_traits.h"], - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":common_policy_traits", - "//absl/meta:type_traits", - ], -) - -cc_test( - name = "hash_policy_traits_test", - srcs = ["internal/hash_policy_traits_test.cc"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":hash_policy_traits", - "@com_google_googletest//:gtest_main", - ], -) - -cc_library( - name = "common_policy_traits", - hdrs = ["internal/common_policy_traits.h"], - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - visibility = ["//visibility:private"], - deps = ["//absl/meta:type_traits"], -) - -cc_test( - name = "common_policy_traits_test", - srcs = ["internal/common_policy_traits_test.cc"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":common_policy_traits", - "@com_google_googletest//:gtest_main", - ], -) - -cc_library( - name = "hashtable_debug", - hdrs = ["internal/hashtable_debug.h"], - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":hashtable_debug_hooks", - ], -) - -cc_library( - name = "hashtable_debug_hooks", - hdrs = ["internal/hashtable_debug_hooks.h"], - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - "//absl/base:config", - ], -) - -cc_library( - name = "hashtablez_sampler", - srcs = [ - "internal/hashtablez_sampler.cc", - "internal/hashtablez_sampler_force_weak_definition.cc", - ], - hdrs = ["internal/hashtablez_sampler.h"], - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - "//absl/base", - "//absl/base:config", - "//absl/base:core_headers", - "//absl/debugging:stacktrace", - "//absl/memory", - "//absl/profiling:exponential_biased", - "//absl/profiling:sample_recorder", - "//absl/synchronization", - "//absl/utility", - ], -) - -cc_test( - name = "hashtablez_sampler_test", - srcs = ["internal/hashtablez_sampler_test.cc"], - linkopts = ABSL_DEFAULT_LINKOPTS, - tags = [ - "no_test_wasm", - ], - deps = [ - ":hashtablez_sampler", - "//absl/base:config", - "//absl/base:core_headers", - "//absl/profiling:sample_recorder", - "//absl/synchronization", - "//absl/synchronization:thread_pool", - "//absl/time", - "@com_google_googletest//:gtest_main", - ], -) - -cc_library( - name = "node_slot_policy", - hdrs = ["internal/node_slot_policy.h"], - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = ["//absl/base:config"], -) - -cc_test( - name = "node_slot_policy_test", - srcs = ["internal/node_slot_policy_test.cc"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":hash_policy_traits", - ":node_slot_policy", - "@com_google_googletest//:gtest_main", - ], -) - -cc_library( - name = "raw_hash_map", - hdrs = ["internal/raw_hash_map.h"], - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":container_memory", - ":raw_hash_set", - "//absl/base:throw_delegate", - ], -) - -cc_library( - name = "common", - hdrs = ["internal/common.h"], - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - "//absl/meta:type_traits", - "//absl/types:optional", - ], -) - -cc_library( - name = "raw_hash_set", - srcs = ["internal/raw_hash_set.cc"], - hdrs = ["internal/raw_hash_set.h"], - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":common", - ":compressed_tuple", - ":container_memory", - ":hash_policy_traits", - ":hashtable_debug_hooks", - ":hashtablez_sampler", - "//absl/base:config", - "//absl/base:core_headers", - "//absl/base:endian", - "//absl/base:prefetch", - "//absl/base:raw_logging_internal", - "//absl/memory", - "//absl/meta:type_traits", - "//absl/numeric:bits", - "//absl/utility", - ], -) - -cc_test( - name = "raw_hash_set_test", - srcs = ["internal/raw_hash_set_test.cc"], - copts = ABSL_TEST_COPTS, - linkstatic = 1, - tags = NOTEST_TAGS_MOBILE + [ - "no_test_loonix", - # TODO(b/237097643): investigate race and remove - "noarm_gemu", - ], - deps = [ - ":container_memory", - ":flat_hash_map", - ":flat_hash_set", - ":hash_function_defaults", - ":hash_policy_testing", - ":hashtable_debug", - ":raw_hash_set", - "//absl/base", - "//absl/base:config", - "//absl/base:core_headers", - "//absl/base:prefetch", - "//absl/base:raw_logging_internal", - "//absl/log", - "//absl/strings", - "@com_google_googletest//:gtest_main", - ], -) - -cc_binary( - name = "raw_hash_set_benchmark", - testonly = 1, - srcs = ["internal/raw_hash_set_benchmark.cc"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - tags = ["benchmark"], - visibility = ["//visibility:private"], - deps = [ - ":hash_function_defaults", - ":raw_hash_set", - "//absl/base:raw_logging_internal", - "//absl/strings:str_format", - "@com_github_google_benchmark//:benchmark_main", - ], -) - -cc_binary( - name = "raw_hash_set_probe_benchmark", - testonly = 1, - srcs = ["internal/raw_hash_set_probe_benchmark.cc"], - copts = ABSL_TEST_COPTS, - linkopts = select({ - "//conditions:default": [], - }) + ABSL_DEFAULT_LINKOPTS, - tags = ["benchmark"], - visibility = ["//visibility:private"], - deps = [ - ":flat_hash_map", - ":hash_function_defaults", - ":hashtable_debug", - ":raw_hash_set", - "//absl/random", - "//absl/random:distributions", - "//absl/strings", - "//absl/strings:str_format", - ], -) - -cc_test( - name = "raw_hash_set_allocator_test", - size = "small", - srcs = ["internal/raw_hash_set_allocator_test.cc"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":raw_hash_set", - ":tracked", - "//absl/base:core_headers", - "@com_google_googletest//:gtest_main", - ], -) - -cc_library( - name = "layout", - hdrs = ["internal/layout.h"], - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - "//absl/base:config", - "//absl/base:core_headers", - "//absl/meta:type_traits", - "//absl/strings", - "//absl/types:span", - "//absl/utility", - ], -) - -cc_test( - name = "layout_test", - size = "small", - srcs = ["internal/layout_test.cc"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - tags = NOTEST_TAGS_MOBILE + ["no_test_loonix"], - visibility = ["//visibility:private"], - deps = [ - ":layout", - "//absl/base:config", - "//absl/base:core_headers", - "//absl/base:raw_logging_internal", - "//absl/types:span", - "@com_google_googletest//:gtest_main", - ], -) - -cc_binary( - name = "layout_benchmark", - testonly = 1, - srcs = ["internal/layout_benchmark.cc"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - tags = ["benchmark"], - visibility = ["//visibility:private"], - deps = [ - ":layout", - "//absl/base:core_headers", - "//absl/base:raw_logging_internal", - "@com_github_google_benchmark//:benchmark_main", - ], -) - -cc_library( - name = "tracked", - testonly = 1, - hdrs = ["internal/tracked.h"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - "//absl/base:config", - ], -) - -cc_library( - name = "unordered_map_constructor_test", - testonly = 1, - hdrs = ["internal/unordered_map_constructor_test.h"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":hash_generator_testing", - ":hash_policy_testing", - "@com_google_googletest//:gtest", - ], -) - -cc_library( - name = "unordered_map_lookup_test", - testonly = 1, - hdrs = ["internal/unordered_map_lookup_test.h"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":hash_generator_testing", - ":hash_policy_testing", - "@com_google_googletest//:gtest", - ], -) - -cc_library( - name = "unordered_map_modifiers_test", - testonly = 1, - hdrs = ["internal/unordered_map_modifiers_test.h"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":hash_generator_testing", - ":hash_policy_testing", - "@com_google_googletest//:gtest", - ], -) - -cc_library( - name = "unordered_set_constructor_test", - testonly = 1, - hdrs = ["internal/unordered_set_constructor_test.h"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":hash_generator_testing", - ":hash_policy_testing", - "//absl/meta:type_traits", - "@com_google_googletest//:gtest", - ], -) - -cc_library( - name = "unordered_set_members_test", - testonly = 1, - hdrs = ["internal/unordered_set_members_test.h"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - "//absl/meta:type_traits", - "@com_google_googletest//:gtest", - ], -) - -cc_library( - name = "unordered_map_members_test", - testonly = 1, - hdrs = ["internal/unordered_map_members_test.h"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - "//absl/meta:type_traits", - "@com_google_googletest//:gtest", - ], -) - -cc_library( - name = "unordered_set_lookup_test", - testonly = 1, - hdrs = ["internal/unordered_set_lookup_test.h"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":hash_generator_testing", - ":hash_policy_testing", - "@com_google_googletest//:gtest", - ], -) - -cc_library( - name = "unordered_set_modifiers_test", - testonly = 1, - hdrs = ["internal/unordered_set_modifiers_test.h"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":hash_generator_testing", - ":hash_policy_testing", - "@com_google_googletest//:gtest", - ], -) - -cc_test( - name = "unordered_set_test", - srcs = ["internal/unordered_set_test.cc"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - tags = ["no_test_loonix"], - deps = [ - ":unordered_set_constructor_test", - ":unordered_set_lookup_test", - ":unordered_set_members_test", - ":unordered_set_modifiers_test", - "@com_google_googletest//:gtest_main", - ], -) - -cc_test( - name = "unordered_map_test", - srcs = ["internal/unordered_map_test.cc"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - tags = ["no_test_loonix"], - deps = [ - ":unordered_map_constructor_test", - ":unordered_map_lookup_test", - ":unordered_map_members_test", - ":unordered_map_modifiers_test", - "@com_google_googletest//:gtest_main", - ], -) - -cc_test( - name = "sample_element_size_test", - srcs = ["sample_element_size_test.cc"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - tags = ["no_test_loonix"], - visibility = ["//visibility:private"], - deps = [ - ":flat_hash_map", - ":flat_hash_set", - ":node_hash_map", - ":node_hash_set", - "@com_google_googletest//:gtest_main", - ], -) - -cc_library( - name = "btree", - srcs = [ - "internal/btree.h", - "internal/btree_container.h", - ], - hdrs = [ - "btree_map.h", - "btree_set.h", - ], - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - visibility = ["//visibility:public"], - deps = [ - ":common", - ":common_policy_traits", - ":compressed_tuple", - ":container_memory", - ":layout", - "//absl/base:core_headers", - "//absl/base:raw_logging_internal", - "//absl/base:throw_delegate", - "//absl/memory", - "//absl/meta:type_traits", - "//absl/strings", - "//absl/strings:cord", - "//absl/types:compare", - "//absl/utility", - ], -) - -cc_library( - name = "btree_test_common", - testonly = 1, - hdrs = ["btree_test.h"], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - visibility = ["//visibility:private"], - deps = [ - ":btree", - ":flat_hash_set", - "//absl/strings", - "//absl/strings:cord", - "//absl/time", - ], -) - -cc_test( - name = "btree_test", - size = "large", - srcs = [ - "btree_test.cc", - ], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - shard_count = 10, - tags = [ - "no_test:os:ios", - "no_test_ios", - "no_test_wasm", - ], - visibility = ["//visibility:private"], - deps = [ - ":btree", - ":btree_test_common", - ":counting_allocator", - ":test_instance_tracker", - "//absl/algorithm:container", - "//absl/base:core_headers", - "//absl/base:raw_logging_internal", - "//absl/flags:flag", - "//absl/hash:hash_testing", - "//absl/memory", - "//absl/random", - "//absl/strings", - "//absl/types:compare", - "@com_google_googletest//:gtest_main", - ], -) - -cc_binary( - name = "btree_benchmark", - testonly = 1, - srcs = [ - "btree_benchmark.cc", - ], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - tags = ["benchmark"], - visibility = ["//visibility:private"], - deps = [ - ":btree", - ":btree_test_common", - ":flat_hash_map", - ":flat_hash_set", - ":hashtable_debug", - "//absl/algorithm:container", - "//absl/base:raw_logging_internal", - "//absl/hash", - "//absl/log", - "//absl/memory", - "//absl/random", - "//absl/strings:cord", - "//absl/strings:str_format", - "//absl/time", - "@com_github_google_benchmark//:benchmark_main", - ], -) diff --git a/src/third_party/abseil-cpp/absl/container/CMakeLists.txt b/src/third_party/abseil-cpp/absl/container/CMakeLists.txt deleted file mode 100644 index 416e3e386a..0000000000 --- a/src/third_party/abseil-cpp/absl/container/CMakeLists.txt +++ /dev/null @@ -1,967 +0,0 @@ -# -# Copyright 2017 The Abseil Authors. -# -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at -# -# https://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. -# - -absl_cc_library( - NAME - btree - HDRS - "btree_map.h" - "btree_set.h" - "internal/btree.h" - "internal/btree_container.h" - COPTS - ${ABSL_DEFAULT_COPTS} - LINKOPTS - ${ABSL_DEFAULT_LINKOPTS} - DEPS - absl::container_common - absl::common_policy_traits - absl::compare - absl::compressed_tuple - absl::container_memory - absl::cord - absl::core_headers - absl::layout - absl::memory - absl::raw_logging_internal - absl::strings - absl::throw_delegate - absl::type_traits - absl::utility -) - -# Internal-only target, do not depend on directly. -absl_cc_library( - NAME - btree_test_common - hdrs - "btree_test.h" - COPTS - ${ABSL_TEST_COPTS} - LINKOPTS - ${ABSL_DEFAULT_LINKOPTS} - DEPS - absl::btree - absl::cord - absl::flat_hash_set - absl::strings - absl::time - TESTONLY -) - -absl_cc_test( - NAME - btree_test - SRCS - "btree_test.cc" - COPTS - ${ABSL_TEST_COPTS} - LINKOPTS - ${ABSL_DEFAULT_LINKOPTS} - DEPS - absl::algorithm_container - absl::btree - absl::btree_test_common - absl::compare - absl::core_headers - absl::counting_allocator - absl::flags - absl::hash_testing - absl::random_random - absl::raw_logging_internal - absl::strings - absl::test_instance_tracker - GTest::gmock_main -) - -# Internal-only target, do not depend on directly. -absl_cc_library( - NAME - compressed_tuple - HDRS - "internal/compressed_tuple.h" - COPTS - ${ABSL_DEFAULT_COPTS} - DEPS - absl::utility - PUBLIC -) - -absl_cc_test( - NAME - compressed_tuple_test - SRCS - "internal/compressed_tuple_test.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::any - absl::compressed_tuple - absl::memory - absl::optional - absl::test_instance_tracker - absl::utility - GTest::gmock_main -) - -absl_cc_library( - NAME - fixed_array - HDRS - "fixed_array.h" - COPTS - ${ABSL_DEFAULT_COPTS} - DEPS - absl::compressed_tuple - absl::algorithm - absl::config - absl::core_headers - absl::dynamic_annotations - absl::throw_delegate - absl::memory - PUBLIC -) - -absl_cc_test( - NAME - fixed_array_test - SRCS - "fixed_array_test.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::fixed_array - absl::counting_allocator - absl::config - absl::exception_testing - absl::hash_testing - absl::memory - GTest::gmock_main -) - -absl_cc_test( - NAME - fixed_array_exception_safety_test - SRCS - "fixed_array_exception_safety_test.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::fixed_array - absl::config - absl::exception_safety_testing - GTest::gmock_main -) - -# Internal-only target, do not depend on directly. -absl_cc_library( - NAME - inlined_vector_internal - HDRS - "internal/inlined_vector.h" - COPTS - ${ABSL_DEFAULT_COPTS} - DEPS - absl::compressed_tuple - absl::core_headers - absl::memory - absl::span - absl::type_traits - PUBLIC -) - -absl_cc_library( - NAME - inlined_vector - HDRS - "inlined_vector.h" - COPTS - ${ABSL_DEFAULT_COPTS} - DEPS - absl::algorithm - absl::core_headers - absl::inlined_vector_internal - absl::throw_delegate - absl::memory - absl::type_traits - PUBLIC -) - -# Internal-only target, do not depend on directly. -absl_cc_library( - NAME - counting_allocator - HDRS - "internal/counting_allocator.h" - COPTS - ${ABSL_DEFAULT_COPTS} - DEPS - absl::config -) - -absl_cc_test( - NAME - inlined_vector_test - SRCS - "inlined_vector_test.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::counting_allocator - absl::inlined_vector - absl::test_instance_tracker - absl::config - absl::core_headers - absl::exception_testing - absl::hash_testing - absl::memory - absl::raw_logging_internal - absl::strings - GTest::gmock_main -) - -absl_cc_test( - NAME - inlined_vector_exception_safety_test - SRCS - "inlined_vector_exception_safety_test.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::inlined_vector - absl::config - absl::exception_safety_testing - GTest::gmock_main -) - -# Internal-only target, do not depend on directly. -absl_cc_library( - NAME - test_instance_tracker - HDRS - "internal/test_instance_tracker.h" - SRCS - "internal/test_instance_tracker.cc" - COPTS - ${ABSL_DEFAULT_COPTS} - DEPS - absl::compare - TESTONLY -) - -absl_cc_test( - NAME - test_instance_tracker_test - SRCS - "internal/test_instance_tracker_test.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::test_instance_tracker - GTest::gmock_main -) - -absl_cc_library( - NAME - flat_hash_map - HDRS - "flat_hash_map.h" - COPTS - ${ABSL_DEFAULT_COPTS} - DEPS - absl::container_memory - absl::core_headers - absl::hash_function_defaults - absl::raw_hash_map - absl::algorithm_container - absl::memory - PUBLIC -) - -absl_cc_test( - NAME - flat_hash_map_test - SRCS - "flat_hash_map_test.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::flat_hash_map - absl::hash_generator_testing - absl::unordered_map_constructor_test - absl::unordered_map_lookup_test - absl::unordered_map_members_test - absl::unordered_map_modifiers_test - absl::any - absl::raw_logging_internal - GTest::gmock_main -) - -absl_cc_library( - NAME - flat_hash_set - HDRS - "flat_hash_set.h" - COPTS - ${ABSL_DEFAULT_COPTS} - DEPS - absl::container_memory - absl::hash_function_defaults - absl::raw_hash_set - absl::algorithm_container - absl::core_headers - absl::memory - PUBLIC -) - -absl_cc_test( - NAME - flat_hash_set_test - SRCS - "flat_hash_set_test.cc" - COPTS - ${ABSL_TEST_COPTS} - "-DUNORDERED_SET_CXX17" - DEPS - absl::flat_hash_set - absl::hash_generator_testing - absl::unordered_set_constructor_test - absl::unordered_set_lookup_test - absl::unordered_set_members_test - absl::unordered_set_modifiers_test - absl::memory - absl::raw_logging_internal - absl::strings - GTest::gmock_main -) - -absl_cc_library( - NAME - node_hash_map - HDRS - "node_hash_map.h" - COPTS - ${ABSL_DEFAULT_COPTS} - DEPS - absl::container_memory - absl::core_headers - absl::hash_function_defaults - absl::node_slot_policy - absl::raw_hash_map - absl::algorithm_container - absl::memory - PUBLIC -) - -absl_cc_test( - NAME - node_hash_map_test - SRCS - "node_hash_map_test.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::hash_generator_testing - absl::node_hash_map - absl::tracked - absl::unordered_map_constructor_test - absl::unordered_map_lookup_test - absl::unordered_map_members_test - absl::unordered_map_modifiers_test - GTest::gmock_main -) - -absl_cc_library( - NAME - node_hash_set - HDRS - "node_hash_set.h" - COPTS - ${ABSL_DEFAULT_COPTS} - DEPS - absl::core_headers - absl::hash_function_defaults - absl::node_slot_policy - absl::raw_hash_set - absl::algorithm_container - absl::memory - PUBLIC -) - -absl_cc_test( - NAME - node_hash_set_test - SRCS - "node_hash_set_test.cc" - COPTS - ${ABSL_TEST_COPTS} - "-DUNORDERED_SET_CXX17" - DEPS - absl::hash_generator_testing - absl::node_hash_set - absl::unordered_set_constructor_test - absl::unordered_set_lookup_test - absl::unordered_set_members_test - absl::unordered_set_modifiers_test - GTest::gmock_main -) - -# Internal-only target, do not depend on directly. -absl_cc_library( - NAME - container_memory - HDRS - "internal/container_memory.h" - COPTS - ${ABSL_DEFAULT_COPTS} - DEPS - absl::config - absl::memory - absl::type_traits - absl::utility - PUBLIC -) - -absl_cc_test( - NAME - container_memory_test - SRCS - "internal/container_memory_test.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::container_memory - absl::strings - absl::test_instance_tracker - GTest::gmock_main -) - -# Internal-only target, do not depend on directly. -absl_cc_library( - NAME - hash_function_defaults - HDRS - "internal/hash_function_defaults.h" - COPTS - ${ABSL_DEFAULT_COPTS} - DEPS - absl::config - absl::cord - absl::hash - absl::strings - PUBLIC -) - -absl_cc_test( - NAME - hash_function_defaults_test - SRCS - "internal/hash_function_defaults_test.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::cord - absl::cord_test_helpers - absl::hash_function_defaults - absl::hash - absl::random_random - absl::strings - GTest::gmock_main -) - -# Internal-only target, do not depend on directly. -absl_cc_library( - NAME - hash_generator_testing - HDRS - "internal/hash_generator_testing.h" - SRCS - "internal/hash_generator_testing.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::hash_policy_testing - absl::memory - absl::meta - absl::strings - TESTONLY -) - -# Internal-only target, do not depend on directly. -absl_cc_library( - NAME - hash_policy_testing - HDRS - "internal/hash_policy_testing.h" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::hash - absl::strings - TESTONLY -) - -absl_cc_test( - NAME - hash_policy_testing_test - SRCS - "internal/hash_policy_testing_test.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::hash_policy_testing - GTest::gmock_main -) - -# Internal-only target, do not depend on directly. -absl_cc_library( - NAME - hash_policy_traits - HDRS - "internal/hash_policy_traits.h" - COPTS - ${ABSL_DEFAULT_COPTS} - DEPS - absl::common_policy_traits - absl::meta - PUBLIC -) - -absl_cc_test( - NAME - hash_policy_traits_test - SRCS - "internal/hash_policy_traits_test.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::hash_policy_traits - GTest::gmock_main -) - -# Internal-only target, do not depend on directly. -absl_cc_library( - NAME - common_policy_traits - HDRS - "internal/common_policy_traits.h" - COPTS - ${ABSL_DEFAULT_COPTS} - DEPS - absl::meta - PUBLIC -) - -absl_cc_test( - NAME - common_policy_traits_test - SRCS - "internal/common_policy_traits_test.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::common_policy_traits - GTest::gmock_main -) - -# Internal-only target, do not depend on directly. -absl_cc_library( - NAME - hashtablez_sampler - HDRS - "internal/hashtablez_sampler.h" - SRCS - "internal/hashtablez_sampler.cc" - "internal/hashtablez_sampler_force_weak_definition.cc" - COPTS - ${ABSL_DEFAULT_COPTS} - DEPS - absl::base - absl::config - absl::exponential_biased - absl::sample_recorder - absl::synchronization -) - -absl_cc_test( - NAME - hashtablez_sampler_test - SRCS - "internal/hashtablez_sampler_test.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::config - absl::hashtablez_sampler - GTest::gmock_main -) - -# Internal-only target, do not depend on directly. -absl_cc_library( - NAME - hashtable_debug - HDRS - "internal/hashtable_debug.h" - COPTS - ${ABSL_DEFAULT_COPTS} - DEPS - absl::hashtable_debug_hooks -) - -# Internal-only target, do not depend on directly. -absl_cc_library( - NAME - hashtable_debug_hooks - HDRS - "internal/hashtable_debug_hooks.h" - COPTS - ${ABSL_DEFAULT_COPTS} - DEPS - absl::config - PUBLIC -) - -# Internal-only target, do not depend on directly. -absl_cc_library( - NAME - node_slot_policy - HDRS - "internal/node_slot_policy.h" - COPTS - ${ABSL_DEFAULT_COPTS} - DEPS - absl::config - PUBLIC -) - -absl_cc_test( - NAME - node_slot_policy_test - SRCS - "internal/node_slot_policy_test.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::hash_policy_traits - absl::node_slot_policy - GTest::gmock_main -) - -# Internal-only target, do not depend on directly. -absl_cc_library( - NAME - raw_hash_map - HDRS - "internal/raw_hash_map.h" - COPTS - ${ABSL_DEFAULT_COPTS} - DEPS - absl::container_memory - absl::raw_hash_set - absl::throw_delegate - PUBLIC -) - -# Internal-only target, do not depend on directly. -absl_cc_library( - NAME - container_common - HDRS - "internal/common.h" - COPTS - ${ABSL_DEFAULT_COPTS} - DEPS - absl::type_traits -) - -# Internal-only target, do not depend on directly. -absl_cc_library( - NAME - raw_hash_set - HDRS - "internal/raw_hash_set.h" - SRCS - "internal/raw_hash_set.cc" - COPTS - ${ABSL_DEFAULT_COPTS} - DEPS - absl::bits - absl::compressed_tuple - absl::config - absl::container_common - absl::container_memory - absl::core_headers - absl::endian - absl::hash_policy_traits - absl::hashtable_debug_hooks - absl::hashtablez_sampler - absl::memory - absl::meta - absl::optional - absl::prefetch - absl::raw_logging_internal - absl::utility - PUBLIC -) - -absl_cc_test( - NAME - raw_hash_set_test - SRCS - "internal/raw_hash_set_test.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::base - absl::config - absl::container_memory - absl::core_headers - absl::flat_hash_map - absl::flat_hash_set - absl::hash_function_defaults - absl::hash_policy_testing - absl::hashtable_debug - absl::log - absl::prefetch - absl::raw_hash_set - absl::raw_logging_internal - absl::strings - GTest::gmock_main -) - -absl_cc_test( - NAME - raw_hash_set_allocator_test - SRCS - "internal/raw_hash_set_allocator_test.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::raw_hash_set - absl::tracked - absl::core_headers - GTest::gmock_main -) - -# Internal-only target, do not depend on directly. -absl_cc_library( - NAME - layout - HDRS - "internal/layout.h" - COPTS - ${ABSL_DEFAULT_COPTS} - DEPS - absl::config - absl::core_headers - absl::meta - absl::strings - absl::span - absl::utility - PUBLIC -) - -absl_cc_test( - NAME - layout_test - SRCS - "internal/layout_test.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::layout - absl::config - absl::core_headers - absl::raw_logging_internal - absl::span - GTest::gmock_main -) - -# Internal-only target, do not depend on directly. -absl_cc_library( - NAME - tracked - HDRS - "internal/tracked.h" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::config - TESTONLY -) - -# Internal-only target, do not depend on directly. -absl_cc_library( - NAME - unordered_map_constructor_test - HDRS - "internal/unordered_map_constructor_test.h" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::hash_generator_testing - absl::hash_policy_testing - GTest::gmock - TESTONLY -) - -# Internal-only target, do not depend on directly. -absl_cc_library( - NAME - unordered_map_lookup_test - HDRS - "internal/unordered_map_lookup_test.h" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::hash_generator_testing - absl::hash_policy_testing - GTest::gmock - TESTONLY -) - -# Internal-only target, do not depend on directly. -absl_cc_library( - NAME - unordered_map_members_test - HDRS - "internal/unordered_map_members_test.h" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::type_traits - GTest::gmock - TESTONLY -) - -# Internal-only target, do not depend on directly. -absl_cc_library( - NAME - unordered_map_modifiers_test - HDRS - "internal/unordered_map_modifiers_test.h" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::hash_generator_testing - absl::hash_policy_testing - GTest::gmock - TESTONLY -) - -# Internal-only target, do not depend on directly. -absl_cc_library( - NAME - unordered_set_constructor_test - HDRS - "internal/unordered_set_constructor_test.h" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::hash_generator_testing - absl::hash_policy_testing - GTest::gmock - TESTONLY -) - -# Internal-only target, do not depend on directly. -absl_cc_library( - NAME - unordered_set_lookup_test - HDRS - "internal/unordered_set_lookup_test.h" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::hash_generator_testing - absl::hash_policy_testing - GTest::gmock - TESTONLY -) - -# Internal-only target, do not depend on directly. -absl_cc_library( - NAME - unordered_set_members_test - HDRS - "internal/unordered_set_members_test.h" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::type_traits - GTest::gmock - TESTONLY -) - -# Internal-only target, do not depend on directly. -absl_cc_library( - NAME - unordered_set_modifiers_test - HDRS - "internal/unordered_set_modifiers_test.h" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::hash_generator_testing - absl::hash_policy_testing - GTest::gmock - TESTONLY -) - -absl_cc_test( - NAME - unordered_set_test - SRCS - "internal/unordered_set_test.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::unordered_set_constructor_test - absl::unordered_set_lookup_test - absl::unordered_set_members_test - absl::unordered_set_modifiers_test - GTest::gmock_main -) - -absl_cc_test( - NAME - unordered_map_test - SRCS - "internal/unordered_map_test.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::unordered_map_constructor_test - absl::unordered_map_lookup_test - absl::unordered_map_members_test - absl::unordered_map_modifiers_test - GTest::gmock_main -) - -absl_cc_test( - NAME - sample_element_size_test - SRCS - "sample_element_size_test.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::flat_hash_map - absl::flat_hash_set - absl::node_hash_map - absl::node_hash_set - GTest::gmock_main -) diff --git a/src/third_party/abseil-cpp/absl/container/btree_benchmark.cc b/src/third_party/abseil-cpp/absl/container/btree_benchmark.cc deleted file mode 100644 index 0d26fd424c..0000000000 --- a/src/third_party/abseil-cpp/absl/container/btree_benchmark.cc +++ /dev/null @@ -1,764 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "benchmark/benchmark.h" -#include "absl/algorithm/container.h" -#include "absl/base/internal/raw_logging.h" -#include "absl/container/btree_map.h" -#include "absl/container/btree_set.h" -#include "absl/container/btree_test.h" -#include "absl/container/flat_hash_map.h" -#include "absl/container/flat_hash_set.h" -#include "absl/container/internal/hashtable_debug.h" -#include "absl/hash/hash.h" -#include "absl/log/log.h" -#include "absl/memory/memory.h" -#include "absl/random/random.h" -#include "absl/strings/cord.h" -#include "absl/strings/str_format.h" -#include "absl/time/time.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace container_internal { -namespace { - -constexpr size_t kBenchmarkValues = 1 << 20; - -// How many times we add and remove sub-batches in one batch of *AddRem -// benchmarks. -constexpr size_t kAddRemBatchSize = 1 << 2; - -// Generates n values in the range [0, 4 * n]. -template -std::vector GenerateValues(int n) { - constexpr int kSeed = 23; - return GenerateValuesWithSeed(n, 4 * n, kSeed); -} - -// Benchmark insertion of values into a container. -template -void BM_InsertImpl(benchmark::State& state, bool sorted) { - using V = typename remove_pair_const::type; - typename KeyOfValue::type key_of_value; - - std::vector values = GenerateValues(kBenchmarkValues); - if (sorted) { - std::sort(values.begin(), values.end()); - } - T container(values.begin(), values.end()); - - // Remove and re-insert 10% of the keys per batch. - const int batch_size = (kBenchmarkValues + 9) / 10; - while (state.KeepRunningBatch(batch_size)) { - state.PauseTiming(); - const auto i = static_cast(state.iterations()); - - for (int j = i; j < i + batch_size; j++) { - int x = j % kBenchmarkValues; - container.erase(key_of_value(values[x])); - } - - state.ResumeTiming(); - - for (int j = i; j < i + batch_size; j++) { - int x = j % kBenchmarkValues; - container.insert(values[x]); - } - } -} - -template -void BM_Insert(benchmark::State& state) { - BM_InsertImpl(state, false); -} - -template -void BM_InsertSorted(benchmark::State& state) { - BM_InsertImpl(state, true); -} - -// Benchmark inserting the first few elements in a container. In b-tree, this is -// when the root node grows. -template -void BM_InsertSmall(benchmark::State& state) { - using V = typename remove_pair_const::type; - - const int kSize = 8; - std::vector values = GenerateValues(kSize); - T container; - - while (state.KeepRunningBatch(kSize)) { - for (int i = 0; i < kSize; ++i) { - benchmark::DoNotOptimize(container.insert(values[i])); - } - state.PauseTiming(); - // Do not measure the time it takes to clear the container. - container.clear(); - state.ResumeTiming(); - } -} - -template -void BM_LookupImpl(benchmark::State& state, bool sorted) { - using V = typename remove_pair_const::type; - typename KeyOfValue::type key_of_value; - - std::vector values = GenerateValues(kBenchmarkValues); - if (sorted) { - std::sort(values.begin(), values.end()); - } - T container(values.begin(), values.end()); - - while (state.KeepRunning()) { - int idx = state.iterations() % kBenchmarkValues; - benchmark::DoNotOptimize(container.find(key_of_value(values[idx]))); - } -} - -// Benchmark lookup of values in a container. -template -void BM_Lookup(benchmark::State& state) { - BM_LookupImpl(state, false); -} - -// Benchmark lookup of values in a full container, meaning that values -// are inserted in-order to take advantage of biased insertion, which -// yields a full tree. -template -void BM_FullLookup(benchmark::State& state) { - BM_LookupImpl(state, true); -} - -// Benchmark erasing values from a container. -template -void BM_Erase(benchmark::State& state) { - using V = typename remove_pair_const::type; - typename KeyOfValue::type key_of_value; - std::vector values = GenerateValues(kBenchmarkValues); - T container(values.begin(), values.end()); - - // Remove and re-insert 10% of the keys per batch. - const int batch_size = (kBenchmarkValues + 9) / 10; - while (state.KeepRunningBatch(batch_size)) { - const int i = state.iterations(); - - for (int j = i; j < i + batch_size; j++) { - int x = j % kBenchmarkValues; - container.erase(key_of_value(values[x])); - } - - state.PauseTiming(); - for (int j = i; j < i + batch_size; j++) { - int x = j % kBenchmarkValues; - container.insert(values[x]); - } - state.ResumeTiming(); - } -} - -// Benchmark erasing multiple values from a container. -template -void BM_EraseRange(benchmark::State& state) { - using V = typename remove_pair_const::type; - typename KeyOfValue::type key_of_value; - std::vector values = GenerateValues(kBenchmarkValues); - T container(values.begin(), values.end()); - - // Remove and re-insert 10% of the keys per batch. - const int batch_size = (kBenchmarkValues + 9) / 10; - while (state.KeepRunningBatch(batch_size)) { - const int i = state.iterations(); - - const int start_index = i % kBenchmarkValues; - - state.PauseTiming(); - { - std::vector removed; - removed.reserve(batch_size); - auto itr = container.find(key_of_value(values[start_index])); - auto start = itr; - for (int j = 0; j < batch_size; j++) { - if (itr == container.end()) { - state.ResumeTiming(); - container.erase(start, itr); - state.PauseTiming(); - itr = container.begin(); - start = itr; - } - removed.push_back(*itr++); - } - - state.ResumeTiming(); - container.erase(start, itr); - state.PauseTiming(); - - container.insert(removed.begin(), removed.end()); - } - state.ResumeTiming(); - } -} - -// Predicate that erases every other element. We can't use a lambda because -// C++11 doesn't support generic lambdas. -// TODO(b/207389011): consider adding benchmarks that remove different fractions -// of keys (e.g. 10%, 90%). -struct EraseIfPred { - uint64_t i = 0; - template - bool operator()(const T&) { - return ++i % 2; - } -}; - -// Benchmark erasing multiple values from a container with a predicate. -template -void BM_EraseIf(benchmark::State& state) { - using V = typename remove_pair_const::type; - std::vector values = GenerateValues(kBenchmarkValues); - - // Removes half of the keys per batch. - const int batch_size = (kBenchmarkValues + 1) / 2; - EraseIfPred pred; - while (state.KeepRunningBatch(batch_size)) { - state.PauseTiming(); - { - T container(values.begin(), values.end()); - state.ResumeTiming(); - erase_if(container, pred); - benchmark::DoNotOptimize(container); - state.PauseTiming(); - } - state.ResumeTiming(); - } -} - -// Benchmark steady-state insert (into first half of range) and remove (from -// second half of range), treating the container approximately like a queue with -// log-time access for all elements. This benchmark does not test the case where -// insertion and removal happen in the same region of the tree. This benchmark -// counts two value constructors. -template -void BM_QueueAddRem(benchmark::State& state) { - using V = typename remove_pair_const::type; - typename KeyOfValue::type key_of_value; - - ABSL_RAW_CHECK(kBenchmarkValues % 2 == 0, "for performance"); - - T container; - - const size_t half = kBenchmarkValues / 2; - std::vector remove_keys(half); - std::vector add_keys(half); - - // We want to do the exact same work repeatedly, and the benchmark can end - // after a different number of iterations depending on the speed of the - // individual run so we use a large batch size here and ensure that we do - // deterministic work every batch. - while (state.KeepRunningBatch(half * kAddRemBatchSize)) { - state.PauseTiming(); - - container.clear(); - - for (size_t i = 0; i < half; ++i) { - remove_keys[i] = i; - add_keys[i] = i; - } - constexpr int kSeed = 5; - std::mt19937_64 rand(kSeed); - std::shuffle(remove_keys.begin(), remove_keys.end(), rand); - std::shuffle(add_keys.begin(), add_keys.end(), rand); - - // Note needs lazy generation of values. - Generator g(kBenchmarkValues * kAddRemBatchSize); - - for (size_t i = 0; i < half; ++i) { - container.insert(g(add_keys[i])); - container.insert(g(half + remove_keys[i])); - } - - // There are three parts each of size "half": - // 1 is being deleted from [offset - half, offset) - // 2 is standing [offset, offset + half) - // 3 is being inserted into [offset + half, offset + 2 * half) - size_t offset = 0; - - for (size_t i = 0; i < kAddRemBatchSize; ++i) { - std::shuffle(remove_keys.begin(), remove_keys.end(), rand); - std::shuffle(add_keys.begin(), add_keys.end(), rand); - offset += half; - - state.ResumeTiming(); - for (size_t idx = 0; idx < half; ++idx) { - container.erase(key_of_value(g(offset - half + remove_keys[idx]))); - container.insert(g(offset + half + add_keys[idx])); - } - state.PauseTiming(); - } - state.ResumeTiming(); - } -} - -// Mixed insertion and deletion in the same range using pre-constructed values. -template -void BM_MixedAddRem(benchmark::State& state) { - using V = typename remove_pair_const::type; - typename KeyOfValue::type key_of_value; - - ABSL_RAW_CHECK(kBenchmarkValues % 2 == 0, "for performance"); - - T container; - - // Create two random shuffles - std::vector remove_keys(kBenchmarkValues); - std::vector add_keys(kBenchmarkValues); - - // We want to do the exact same work repeatedly, and the benchmark can end - // after a different number of iterations depending on the speed of the - // individual run so we use a large batch size here and ensure that we do - // deterministic work every batch. - while (state.KeepRunningBatch(kBenchmarkValues * kAddRemBatchSize)) { - state.PauseTiming(); - - container.clear(); - - constexpr int kSeed = 7; - std::mt19937_64 rand(kSeed); - - std::vector values = GenerateValues(kBenchmarkValues * 2); - - // Insert the first half of the values (already in random order) - container.insert(values.begin(), values.begin() + kBenchmarkValues); - - // Insert the first half of the values (already in random order) - for (size_t i = 0; i < kBenchmarkValues; ++i) { - // remove_keys and add_keys will be swapped before each round, - // therefore fill add_keys here w/ the keys being inserted, so - // they'll be the first to be removed. - remove_keys[i] = i + kBenchmarkValues; - add_keys[i] = i; - } - - for (size_t i = 0; i < kAddRemBatchSize; ++i) { - remove_keys.swap(add_keys); - std::shuffle(remove_keys.begin(), remove_keys.end(), rand); - std::shuffle(add_keys.begin(), add_keys.end(), rand); - - state.ResumeTiming(); - for (size_t idx = 0; idx < kBenchmarkValues; ++idx) { - container.erase(key_of_value(values[remove_keys[idx]])); - container.insert(values[add_keys[idx]]); - } - state.PauseTiming(); - } - state.ResumeTiming(); - } -} - -// Insertion at end, removal from the beginning. This benchmark -// counts two value constructors. -// TODO(ezb): we could add a GenerateNext version of generator that could reduce -// noise for string-like types. -template -void BM_Fifo(benchmark::State& state) { - using V = typename remove_pair_const::type; - - T container; - // Need lazy generation of values as state.max_iterations is large. - Generator g(kBenchmarkValues + state.max_iterations); - - for (int i = 0; i < kBenchmarkValues; i++) { - container.insert(g(i)); - } - - while (state.KeepRunning()) { - container.erase(container.begin()); - container.insert(container.end(), g(state.iterations() + kBenchmarkValues)); - } -} - -// Iteration (forward) through the tree -template -void BM_FwdIter(benchmark::State& state) { - using V = typename remove_pair_const::type; - using R = typename T::value_type const*; - - std::vector values = GenerateValues(kBenchmarkValues); - T container(values.begin(), values.end()); - - auto iter = container.end(); - - R r = nullptr; - - while (state.KeepRunning()) { - if (iter == container.end()) iter = container.begin(); - r = &(*iter); - ++iter; - } - - benchmark::DoNotOptimize(r); -} - -// Benchmark random range-construction of a container. -template -void BM_RangeConstructionImpl(benchmark::State& state, bool sorted) { - using V = typename remove_pair_const::type; - - std::vector values = GenerateValues(kBenchmarkValues); - if (sorted) { - std::sort(values.begin(), values.end()); - } - { - T container(values.begin(), values.end()); - } - - while (state.KeepRunning()) { - T container(values.begin(), values.end()); - benchmark::DoNotOptimize(container); - } -} - -template -void BM_InsertRangeRandom(benchmark::State& state) { - BM_RangeConstructionImpl(state, false); -} - -template -void BM_InsertRangeSorted(benchmark::State& state) { - BM_RangeConstructionImpl(state, true); -} - -#define STL_ORDERED_TYPES(value) \ - using stl_set_##value = std::set; \ - using stl_map_##value = std::map; \ - using stl_multiset_##value = std::multiset; \ - using stl_multimap_##value = std::multimap - -using StdString = std::string; -STL_ORDERED_TYPES(int32_t); -STL_ORDERED_TYPES(int64_t); -STL_ORDERED_TYPES(StdString); -STL_ORDERED_TYPES(Cord); -STL_ORDERED_TYPES(Time); - -#define STL_UNORDERED_TYPES(value) \ - using stl_unordered_set_##value = std::unordered_set; \ - using stl_unordered_map_##value = std::unordered_map; \ - using flat_hash_set_##value = flat_hash_set; \ - using flat_hash_map_##value = flat_hash_map; \ - using stl_unordered_multiset_##value = std::unordered_multiset; \ - using stl_unordered_multimap_##value = \ - std::unordered_multimap - -#define STL_UNORDERED_TYPES_CUSTOM_HASH(value, hash) \ - using stl_unordered_set_##value = std::unordered_set; \ - using stl_unordered_map_##value = std::unordered_map; \ - using flat_hash_set_##value = flat_hash_set; \ - using flat_hash_map_##value = flat_hash_map; \ - using stl_unordered_multiset_##value = std::unordered_multiset; \ - using stl_unordered_multimap_##value = \ - std::unordered_multimap - -STL_UNORDERED_TYPES_CUSTOM_HASH(Cord, absl::Hash); - -STL_UNORDERED_TYPES(int32_t); -STL_UNORDERED_TYPES(int64_t); -STL_UNORDERED_TYPES(StdString); -STL_UNORDERED_TYPES_CUSTOM_HASH(Time, absl::Hash); - -#define BTREE_TYPES(value) \ - using btree_256_set_##value = \ - btree_set, std::allocator>; \ - using btree_256_map_##value = \ - btree_map, \ - std::allocator>>; \ - using btree_256_multiset_##value = \ - btree_multiset, std::allocator>; \ - using btree_256_multimap_##value = \ - btree_multimap, \ - std::allocator>> - -BTREE_TYPES(int32_t); -BTREE_TYPES(int64_t); -BTREE_TYPES(StdString); -BTREE_TYPES(Cord); -BTREE_TYPES(Time); - -#define MY_BENCHMARK4(type, func) \ - void BM_##type##_##func(benchmark::State& state) { BM_##func(state); } \ - BENCHMARK(BM_##type##_##func) - -#define MY_BENCHMARK3_STL(type) \ - MY_BENCHMARK4(type, Insert); \ - MY_BENCHMARK4(type, InsertSorted); \ - MY_BENCHMARK4(type, InsertSmall); \ - MY_BENCHMARK4(type, Lookup); \ - MY_BENCHMARK4(type, FullLookup); \ - MY_BENCHMARK4(type, Erase); \ - MY_BENCHMARK4(type, EraseRange); \ - MY_BENCHMARK4(type, QueueAddRem); \ - MY_BENCHMARK4(type, MixedAddRem); \ - MY_BENCHMARK4(type, Fifo); \ - MY_BENCHMARK4(type, FwdIter); \ - MY_BENCHMARK4(type, InsertRangeRandom); \ - MY_BENCHMARK4(type, InsertRangeSorted) - -#define MY_BENCHMARK3(type) \ - MY_BENCHMARK4(type, EraseIf); \ - MY_BENCHMARK3_STL(type) - -#define MY_BENCHMARK2_SUPPORTS_MULTI_ONLY(type) \ - MY_BENCHMARK3_STL(stl_##type); \ - MY_BENCHMARK3_STL(stl_unordered_##type); \ - MY_BENCHMARK3(btree_256_##type) - -#define MY_BENCHMARK2(type) \ - MY_BENCHMARK2_SUPPORTS_MULTI_ONLY(type); \ - MY_BENCHMARK3(flat_hash_##type) - -// Define MULTI_TESTING to see benchmarks for multi-containers also. -// -// You can use --copt=-DMULTI_TESTING. -#ifdef MULTI_TESTING -#define MY_BENCHMARK(type) \ - MY_BENCHMARK2(set_##type); \ - MY_BENCHMARK2(map_##type); \ - MY_BENCHMARK2_SUPPORTS_MULTI_ONLY(multiset_##type); \ - MY_BENCHMARK2_SUPPORTS_MULTI_ONLY(multimap_##type) -#else -#define MY_BENCHMARK(type) \ - MY_BENCHMARK2(set_##type); \ - MY_BENCHMARK2(map_##type) -#endif - -MY_BENCHMARK(int32_t); -MY_BENCHMARK(int64_t); -MY_BENCHMARK(StdString); -MY_BENCHMARK(Cord); -MY_BENCHMARK(Time); - -// Define a type whose size and cost of moving are independently customizable. -// When sizeof(value_type) increases, we expect btree to no longer have as much -// cache-locality advantage over STL. When cost of moving increases, we expect -// btree to actually do more work than STL because it has to move values around -// and STL doesn't have to. -template -struct BigType { - BigType() : BigType(0) {} - explicit BigType(int x) { std::iota(values.begin(), values.end(), x); } - - void Copy(const BigType& other) { - for (int i = 0; i < Size && i < Copies; ++i) values[i] = other.values[i]; - // If Copies > Size, do extra copies. - for (int i = Size, idx = 0; i < Copies; ++i) { - int64_t tmp = other.values[idx]; - benchmark::DoNotOptimize(tmp); - idx = idx + 1 == Size ? 0 : idx + 1; - } - } - - BigType(const BigType& other) { Copy(other); } - BigType& operator=(const BigType& other) { - Copy(other); - return *this; - } - - // Compare only the first Copies elements if Copies is less than Size. - bool operator<(const BigType& other) const { - return std::lexicographical_compare( - values.begin(), values.begin() + std::min(Size, Copies), - other.values.begin(), other.values.begin() + std::min(Size, Copies)); - } - bool operator==(const BigType& other) const { - return std::equal(values.begin(), values.begin() + std::min(Size, Copies), - other.values.begin()); - } - - // Support absl::Hash. - template - friend State AbslHashValue(State h, const BigType& b) { - for (int i = 0; i < Size && i < Copies; ++i) - h = State::combine(std::move(h), b.values[i]); - return h; - } - - std::array values; -}; - -#define BIG_TYPE_BENCHMARKS(SIZE, COPIES) \ - using stl_set_size##SIZE##copies##COPIES = std::set>; \ - using stl_map_size##SIZE##copies##COPIES = \ - std::map, intptr_t>; \ - using stl_multiset_size##SIZE##copies##COPIES = \ - std::multiset>; \ - using stl_multimap_size##SIZE##copies##COPIES = \ - std::multimap, intptr_t>; \ - using stl_unordered_set_size##SIZE##copies##COPIES = \ - std::unordered_set, \ - absl::Hash>>; \ - using stl_unordered_map_size##SIZE##copies##COPIES = \ - std::unordered_map, intptr_t, \ - absl::Hash>>; \ - using flat_hash_set_size##SIZE##copies##COPIES = \ - flat_hash_set>; \ - using flat_hash_map_size##SIZE##copies##COPIES = \ - flat_hash_map, intptr_t>; \ - using stl_unordered_multiset_size##SIZE##copies##COPIES = \ - std::unordered_multiset, \ - absl::Hash>>; \ - using stl_unordered_multimap_size##SIZE##copies##COPIES = \ - std::unordered_multimap, intptr_t, \ - absl::Hash>>; \ - using btree_256_set_size##SIZE##copies##COPIES = \ - btree_set>; \ - using btree_256_map_size##SIZE##copies##COPIES = \ - btree_map, intptr_t>; \ - using btree_256_multiset_size##SIZE##copies##COPIES = \ - btree_multiset>; \ - using btree_256_multimap_size##SIZE##copies##COPIES = \ - btree_multimap, intptr_t>; \ - MY_BENCHMARK(size##SIZE##copies##COPIES) - -// Define BIG_TYPE_TESTING to see benchmarks for more big types. -// -// You can use --copt=-DBIG_TYPE_TESTING. -#ifndef NODESIZE_TESTING -#ifdef BIG_TYPE_TESTING -BIG_TYPE_BENCHMARKS(1, 4); -BIG_TYPE_BENCHMARKS(4, 1); -BIG_TYPE_BENCHMARKS(4, 4); -BIG_TYPE_BENCHMARKS(1, 8); -BIG_TYPE_BENCHMARKS(8, 1); -BIG_TYPE_BENCHMARKS(8, 8); -BIG_TYPE_BENCHMARKS(1, 16); -BIG_TYPE_BENCHMARKS(16, 1); -BIG_TYPE_BENCHMARKS(16, 16); -BIG_TYPE_BENCHMARKS(1, 32); -BIG_TYPE_BENCHMARKS(32, 1); -BIG_TYPE_BENCHMARKS(32, 32); -#else -BIG_TYPE_BENCHMARKS(32, 32); -#endif -#endif - -// Benchmark using unique_ptrs to large value types. In order to be able to use -// the same benchmark code as the other types, use a type that holds a -// unique_ptr and has a copy constructor. -template -struct BigTypePtr { - BigTypePtr() : BigTypePtr(0) {} - explicit BigTypePtr(int x) { - ptr = absl::make_unique>(x); - } - BigTypePtr(const BigTypePtr& other) { - ptr = absl::make_unique>(*other.ptr); - } - BigTypePtr(BigTypePtr&& other) noexcept = default; - BigTypePtr& operator=(const BigTypePtr& other) { - ptr = absl::make_unique>(*other.ptr); - } - BigTypePtr& operator=(BigTypePtr&& other) noexcept = default; - - bool operator<(const BigTypePtr& other) const { return *ptr < *other.ptr; } - bool operator==(const BigTypePtr& other) const { return *ptr == *other.ptr; } - - std::unique_ptr> ptr; -}; - -template -double ContainerInfo(const btree_set>& b) { - const double bytes_used = - b.bytes_used() + b.size() * sizeof(BigType); - const double bytes_per_value = bytes_used / b.size(); - BtreeContainerInfoLog(b, bytes_used, bytes_per_value); - return bytes_per_value; -} -template -double ContainerInfo(const btree_map>& b) { - const double bytes_used = - b.bytes_used() + b.size() * sizeof(BigType); - const double bytes_per_value = bytes_used / b.size(); - BtreeContainerInfoLog(b, bytes_used, bytes_per_value); - return bytes_per_value; -} - -#define BIG_TYPE_PTR_BENCHMARKS(SIZE) \ - using stl_set_size##SIZE##copies##SIZE##ptr = std::set>; \ - using stl_map_size##SIZE##copies##SIZE##ptr = \ - std::map>; \ - using stl_unordered_set_size##SIZE##copies##SIZE##ptr = \ - std::unordered_set, \ - absl::Hash>>; \ - using stl_unordered_map_size##SIZE##copies##SIZE##ptr = \ - std::unordered_map>; \ - using flat_hash_set_size##SIZE##copies##SIZE##ptr = \ - flat_hash_set>; \ - using flat_hash_map_size##SIZE##copies##SIZE##ptr = \ - flat_hash_map>; \ - using btree_256_set_size##SIZE##copies##SIZE##ptr = \ - btree_set>; \ - using btree_256_map_size##SIZE##copies##SIZE##ptr = \ - btree_map>; \ - MY_BENCHMARK3_STL(stl_set_size##SIZE##copies##SIZE##ptr); \ - MY_BENCHMARK3_STL(stl_unordered_set_size##SIZE##copies##SIZE##ptr); \ - MY_BENCHMARK3(flat_hash_set_size##SIZE##copies##SIZE##ptr); \ - MY_BENCHMARK3(btree_256_set_size##SIZE##copies##SIZE##ptr); \ - MY_BENCHMARK3_STL(stl_map_size##SIZE##copies##SIZE##ptr); \ - MY_BENCHMARK3_STL(stl_unordered_map_size##SIZE##copies##SIZE##ptr); \ - MY_BENCHMARK3(flat_hash_map_size##SIZE##copies##SIZE##ptr); \ - MY_BENCHMARK3(btree_256_map_size##SIZE##copies##SIZE##ptr) - -BIG_TYPE_PTR_BENCHMARKS(32); - -void BM_BtreeSet_IteratorSubtraction(benchmark::State& state) { - absl::InsecureBitGen bitgen; - std::vector vec; - // Randomize the set's insertion order so the nodes aren't all full. - vec.reserve(state.range(0)); - for (int i = 0; i < state.range(0); ++i) vec.push_back(i); - absl::c_shuffle(vec, bitgen); - - absl::btree_set set; - for (int i : vec) set.insert(i); - - size_t distance = absl::Uniform(bitgen, 0u, set.size()); - while (state.KeepRunningBatch(distance)) { - size_t end = absl::Uniform(bitgen, distance, set.size()); - size_t begin = end - distance; - benchmark::DoNotOptimize(set.find(static_cast(end)) - - set.find(static_cast(begin))); - distance = absl::Uniform(bitgen, 0u, set.size()); - } -} - -BENCHMARK(BM_BtreeSet_IteratorSubtraction)->Range(1 << 10, 1 << 20); - -} // namespace -} // namespace container_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/src/third_party/abseil-cpp/absl/container/btree_map.h b/src/third_party/abseil-cpp/absl/container/btree_map.h deleted file mode 100644 index cd3ee2b422..0000000000 --- a/src/third_party/abseil-cpp/absl/container/btree_map.h +++ /dev/null @@ -1,885 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// ----------------------------------------------------------------------------- -// File: btree_map.h -// ----------------------------------------------------------------------------- -// -// This header file defines B-tree maps: sorted associative containers mapping -// keys to values. -// -// * `absl::btree_map<>` -// * `absl::btree_multimap<>` -// -// These B-tree types are similar to the corresponding types in the STL -// (`std::map` and `std::multimap`) and generally conform to the STL interfaces -// of those types. However, because they are implemented using B-trees, they -// are more efficient in most situations. -// -// Unlike `std::map` and `std::multimap`, which are commonly implemented using -// red-black tree nodes, B-tree maps use more generic B-tree nodes able to hold -// multiple values per node. Holding multiple values per node often makes -// B-tree maps perform better than their `std::map` counterparts, because -// multiple entries can be checked within the same cache hit. -// -// However, these types should not be considered drop-in replacements for -// `std::map` and `std::multimap` as there are some API differences, which are -// noted in this header file. The most consequential differences with respect to -// migrating to b-tree from the STL types are listed in the next paragraph. -// Other API differences are minor. -// -// Importantly, insertions and deletions may invalidate outstanding iterators, -// pointers, and references to elements. Such invalidations are typically only -// an issue if insertion and deletion operations are interleaved with the use of -// more than one iterator, pointer, or reference simultaneously. For this -// reason, `insert()`, `erase()`, and `extract_and_get_next()` return a valid -// iterator at the current position. Another important difference is that -// key-types must be copy-constructible. -// -// Another API difference is that btree iterators can be subtracted, and this -// is faster than using std::distance. - -#ifndef ABSL_CONTAINER_BTREE_MAP_H_ -#define ABSL_CONTAINER_BTREE_MAP_H_ - -#include "absl/container/internal/btree.h" // IWYU pragma: export -#include "absl/container/internal/btree_container.h" // IWYU pragma: export - -namespace absl { -ABSL_NAMESPACE_BEGIN - -namespace container_internal { - -template -struct map_params; - -} // namespace container_internal - -// absl::btree_map<> -// -// An `absl::btree_map` is an ordered associative container of -// unique keys and associated values designed to be a more efficient replacement -// for `std::map` (in most cases). -// -// Keys are sorted using an (optional) comparison function, which defaults to -// `std::less`. -// -// An `absl::btree_map` uses a default allocator of -// `std::allocator>` to allocate (and deallocate) -// nodes, and construct and destruct values within those nodes. You may -// instead specify a custom allocator `A` (which in turn requires specifying a -// custom comparator `C`) as in `absl::btree_map`. -// -template , - typename Alloc = std::allocator>> -class btree_map - : public container_internal::btree_map_container< - container_internal::btree>> { - using Base = typename btree_map::btree_map_container; - - public: - // Constructors and Assignment Operators - // - // A `btree_map` supports the same overload set as `std::map` - // for construction and assignment: - // - // * Default constructor - // - // absl::btree_map map1; - // - // * Initializer List constructor - // - // absl::btree_map map2 = - // {{1, "huey"}, {2, "dewey"}, {3, "louie"},}; - // - // * Copy constructor - // - // absl::btree_map map3(map2); - // - // * Copy assignment operator - // - // absl::btree_map map4; - // map4 = map3; - // - // * Move constructor - // - // // Move is guaranteed efficient - // absl::btree_map map5(std::move(map4)); - // - // * Move assignment operator - // - // // May be efficient if allocators are compatible - // absl::btree_map map6; - // map6 = std::move(map5); - // - // * Range constructor - // - // std::vector> v = {{1, "a"}, {2, "b"}}; - // absl::btree_map map7(v.begin(), v.end()); - btree_map() {} - using Base::Base; - - // btree_map::begin() - // - // Returns an iterator to the beginning of the `btree_map`. - using Base::begin; - - // btree_map::cbegin() - // - // Returns a const iterator to the beginning of the `btree_map`. - using Base::cbegin; - - // btree_map::end() - // - // Returns an iterator to the end of the `btree_map`. - using Base::end; - - // btree_map::cend() - // - // Returns a const iterator to the end of the `btree_map`. - using Base::cend; - - // btree_map::empty() - // - // Returns whether or not the `btree_map` is empty. - using Base::empty; - - // btree_map::max_size() - // - // Returns the largest theoretical possible number of elements within a - // `btree_map` under current memory constraints. This value can be thought - // of as the largest value of `std::distance(begin(), end())` for a - // `btree_map`. - using Base::max_size; - - // btree_map::size() - // - // Returns the number of elements currently within the `btree_map`. - using Base::size; - - // btree_map::clear() - // - // Removes all elements from the `btree_map`. Invalidates any references, - // pointers, or iterators referring to contained elements. - using Base::clear; - - // btree_map::erase() - // - // Erases elements within the `btree_map`. If an erase occurs, any references, - // pointers, or iterators are invalidated. - // Overloads are listed below. - // - // iterator erase(iterator position): - // iterator erase(const_iterator position): - // - // Erases the element at `position` of the `btree_map`, returning - // the iterator pointing to the element after the one that was erased - // (or end() if none exists). - // - // iterator erase(const_iterator first, const_iterator last): - // - // Erases the elements in the open interval [`first`, `last`), returning - // the iterator pointing to the element after the interval that was erased - // (or end() if none exists). - // - // template size_type erase(const K& key): - // - // Erases the element with the matching key, if it exists, returning the - // number of elements erased (0 or 1). - using Base::erase; - - // btree_map::insert() - // - // Inserts an element of the specified value into the `btree_map`, - // returning an iterator pointing to the newly inserted element, provided that - // an element with the given key does not already exist. If an insertion - // occurs, any references, pointers, or iterators are invalidated. - // Overloads are listed below. - // - // std::pair insert(const value_type& value): - // - // Inserts a value into the `btree_map`. Returns a pair consisting of an - // iterator to the inserted element (or to the element that prevented the - // insertion) and a bool denoting whether the insertion took place. - // - // std::pair insert(value_type&& value): - // - // Inserts a moveable value into the `btree_map`. Returns a pair - // consisting of an iterator to the inserted element (or to the element that - // prevented the insertion) and a bool denoting whether the insertion took - // place. - // - // iterator insert(const_iterator hint, const value_type& value): - // iterator insert(const_iterator hint, value_type&& value): - // - // Inserts a value, using the position of `hint` as a non-binding suggestion - // for where to begin the insertion search. Returns an iterator to the - // inserted element, or to the existing element that prevented the - // insertion. - // - // void insert(InputIterator first, InputIterator last): - // - // Inserts a range of values [`first`, `last`). - // - // void insert(std::initializer_list ilist): - // - // Inserts the elements within the initializer list `ilist`. - using Base::insert; - - // btree_map::insert_or_assign() - // - // Inserts an element of the specified value into the `btree_map` provided - // that a value with the given key does not already exist, or replaces the - // corresponding mapped type with the forwarded `obj` argument if a key for - // that value already exists, returning an iterator pointing to the newly - // inserted element. Overloads are listed below. - // - // pair insert_or_assign(const key_type& k, M&& obj): - // pair insert_or_assign(key_type&& k, M&& obj): - // - // Inserts/Assigns (or moves) the element of the specified key into the - // `btree_map`. If the returned bool is true, insertion took place, and if - // it's false, assignment took place. - // - // iterator insert_or_assign(const_iterator hint, - // const key_type& k, M&& obj): - // iterator insert_or_assign(const_iterator hint, key_type&& k, M&& obj): - // - // Inserts/Assigns (or moves) the element of the specified key into the - // `btree_map` using the position of `hint` as a non-binding suggestion - // for where to begin the insertion search. - using Base::insert_or_assign; - - // btree_map::emplace() - // - // Inserts an element of the specified value by constructing it in-place - // within the `btree_map`, provided that no element with the given key - // already exists. - // - // The element may be constructed even if there already is an element with the - // key in the container, in which case the newly constructed element will be - // destroyed immediately. Prefer `try_emplace()` unless your key is not - // copyable or moveable. - // - // If an insertion occurs, any references, pointers, or iterators are - // invalidated. - using Base::emplace; - - // btree_map::emplace_hint() - // - // Inserts an element of the specified value by constructing it in-place - // within the `btree_map`, using the position of `hint` as a non-binding - // suggestion for where to begin the insertion search, and only inserts - // provided that no element with the given key already exists. - // - // The element may be constructed even if there already is an element with the - // key in the container, in which case the newly constructed element will be - // destroyed immediately. Prefer `try_emplace()` unless your key is not - // copyable or moveable. - // - // If an insertion occurs, any references, pointers, or iterators are - // invalidated. - using Base::emplace_hint; - - // btree_map::try_emplace() - // - // Inserts an element of the specified value by constructing it in-place - // within the `btree_map`, provided that no element with the given key - // already exists. Unlike `emplace()`, if an element with the given key - // already exists, we guarantee that no element is constructed. - // - // If an insertion occurs, any references, pointers, or iterators are - // invalidated. - // - // Overloads are listed below. - // - // std::pair try_emplace(const key_type& k, Args&&... args): - // std::pair try_emplace(key_type&& k, Args&&... args): - // - // Inserts (via copy or move) the element of the specified key into the - // `btree_map`. - // - // iterator try_emplace(const_iterator hint, - // const key_type& k, Args&&... args): - // iterator try_emplace(const_iterator hint, key_type&& k, Args&&... args): - // - // Inserts (via copy or move) the element of the specified key into the - // `btree_map` using the position of `hint` as a non-binding suggestion - // for where to begin the insertion search. - using Base::try_emplace; - - // btree_map::extract() - // - // Extracts the indicated element, erasing it in the process, and returns it - // as a C++17-compatible node handle. Any references, pointers, or iterators - // are invalidated. Overloads are listed below. - // - // node_type extract(const_iterator position): - // - // Extracts the element at the indicated position and returns a node handle - // owning that extracted data. - // - // template node_type extract(const K& k): - // - // Extracts the element with the key matching the passed key value and - // returns a node handle owning that extracted data. If the `btree_map` - // does not contain an element with a matching key, this function returns an - // empty node handle. - // - // NOTE: when compiled in an earlier version of C++ than C++17, - // `node_type::key()` returns a const reference to the key instead of a - // mutable reference. We cannot safely return a mutable reference without - // std::launder (which is not available before C++17). - // - // NOTE: In this context, `node_type` refers to the C++17 concept of a - // move-only type that owns and provides access to the elements in associative - // containers (https://en.cppreference.com/w/cpp/container/node_handle). - // It does NOT refer to the data layout of the underlying btree. - using Base::extract; - - // btree_map::extract_and_get_next() - // - // Extracts the indicated element, erasing it in the process, and returns it - // as a C++17-compatible node handle along with an iterator to the next - // element. - // - // extract_and_get_next_return_type extract_and_get_next( - // const_iterator position): - // - // Extracts the element at the indicated position, returns a struct - // containing a member named `node`: a node handle owning that extracted - // data and a member named `next`: an iterator pointing to the next element - // in the btree. - using Base::extract_and_get_next; - - // btree_map::merge() - // - // Extracts elements from a given `source` btree_map into this - // `btree_map`. If the destination `btree_map` already contains an - // element with an equivalent key, that element is not extracted. - using Base::merge; - - // btree_map::swap(btree_map& other) - // - // Exchanges the contents of this `btree_map` with those of the `other` - // btree_map, avoiding invocation of any move, copy, or swap operations on - // individual elements. - // - // All iterators and references on the `btree_map` remain valid, excepting - // for the past-the-end iterator, which is invalidated. - using Base::swap; - - // btree_map::at() - // - // Returns a reference to the mapped value of the element with key equivalent - // to the passed key. - using Base::at; - - // btree_map::contains() - // - // template bool contains(const K& key) const: - // - // Determines whether an element comparing equal to the given `key` exists - // within the `btree_map`, returning `true` if so or `false` otherwise. - // - // Supports heterogeneous lookup, provided that the map has a compatible - // heterogeneous comparator. - using Base::contains; - - // btree_map::count() - // - // template size_type count(const K& key) const: - // - // Returns the number of elements comparing equal to the given `key` within - // the `btree_map`. Note that this function will return either `1` or `0` - // since duplicate elements are not allowed within a `btree_map`. - // - // Supports heterogeneous lookup, provided that the map has a compatible - // heterogeneous comparator. - using Base::count; - - // btree_map::equal_range() - // - // Returns a half-open range [first, last), defined by a `std::pair` of two - // iterators, containing all elements with the passed key in the `btree_map`. - using Base::equal_range; - - // btree_map::find() - // - // template iterator find(const K& key): - // template const_iterator find(const K& key) const: - // - // Finds an element with the passed `key` within the `btree_map`. - // - // Supports heterogeneous lookup, provided that the map has a compatible - // heterogeneous comparator. - using Base::find; - - // btree_map::lower_bound() - // - // template iterator lower_bound(const K& key): - // template const_iterator lower_bound(const K& key) const: - // - // Finds the first element with a key that is not less than `key` within the - // `btree_map`. - // - // Supports heterogeneous lookup, provided that the map has a compatible - // heterogeneous comparator. - using Base::lower_bound; - - // btree_map::upper_bound() - // - // template iterator upper_bound(const K& key): - // template const_iterator upper_bound(const K& key) const: - // - // Finds the first element with a key that is greater than `key` within the - // `btree_map`. - // - // Supports heterogeneous lookup, provided that the map has a compatible - // heterogeneous comparator. - using Base::upper_bound; - - // btree_map::operator[]() - // - // Returns a reference to the value mapped to the passed key within the - // `btree_map`, performing an `insert()` if the key does not already - // exist. - // - // If an insertion occurs, any references, pointers, or iterators are - // invalidated. Otherwise iterators are not affected and references are not - // invalidated. Overloads are listed below. - // - // T& operator[](key_type&& key): - // T& operator[](const key_type& key): - // - // Inserts a value_type object constructed in-place if the element with the - // given key does not exist. - using Base::operator[]; - - // btree_map::get_allocator() - // - // Returns the allocator function associated with this `btree_map`. - using Base::get_allocator; - - // btree_map::key_comp(); - // - // Returns the key comparator associated with this `btree_map`. - using Base::key_comp; - - // btree_map::value_comp(); - // - // Returns the value comparator associated with this `btree_map`. - using Base::value_comp; -}; - -// absl::swap(absl::btree_map<>, absl::btree_map<>) -// -// Swaps the contents of two `absl::btree_map` containers. -template -void swap(btree_map &x, btree_map &y) { - return x.swap(y); -} - -// absl::erase_if(absl::btree_map<>, Pred) -// -// Erases all elements that satisfy the predicate pred from the container. -// Returns the number of erased elements. -template -typename btree_map::size_type erase_if( - btree_map &map, Pred pred) { - return container_internal::btree_access::erase_if(map, std::move(pred)); -} - -// absl::btree_multimap -// -// An `absl::btree_multimap` is an ordered associative container of -// keys and associated values designed to be a more efficient replacement for -// `std::multimap` (in most cases). Unlike `absl::btree_map`, a B-tree multimap -// allows multiple elements with equivalent keys. -// -// Keys are sorted using an (optional) comparison function, which defaults to -// `std::less`. -// -// An `absl::btree_multimap` uses a default allocator of -// `std::allocator>` to allocate (and deallocate) -// nodes, and construct and destruct values within those nodes. You may -// instead specify a custom allocator `A` (which in turn requires specifying a -// custom comparator `C`) as in `absl::btree_multimap`. -// -template , - typename Alloc = std::allocator>> -class btree_multimap - : public container_internal::btree_multimap_container< - container_internal::btree>> { - using Base = typename btree_multimap::btree_multimap_container; - - public: - // Constructors and Assignment Operators - // - // A `btree_multimap` supports the same overload set as `std::multimap` - // for construction and assignment: - // - // * Default constructor - // - // absl::btree_multimap map1; - // - // * Initializer List constructor - // - // absl::btree_multimap map2 = - // {{1, "huey"}, {2, "dewey"}, {3, "louie"},}; - // - // * Copy constructor - // - // absl::btree_multimap map3(map2); - // - // * Copy assignment operator - // - // absl::btree_multimap map4; - // map4 = map3; - // - // * Move constructor - // - // // Move is guaranteed efficient - // absl::btree_multimap map5(std::move(map4)); - // - // * Move assignment operator - // - // // May be efficient if allocators are compatible - // absl::btree_multimap map6; - // map6 = std::move(map5); - // - // * Range constructor - // - // std::vector> v = {{1, "a"}, {2, "b"}}; - // absl::btree_multimap map7(v.begin(), v.end()); - btree_multimap() {} - using Base::Base; - - // btree_multimap::begin() - // - // Returns an iterator to the beginning of the `btree_multimap`. - using Base::begin; - - // btree_multimap::cbegin() - // - // Returns a const iterator to the beginning of the `btree_multimap`. - using Base::cbegin; - - // btree_multimap::end() - // - // Returns an iterator to the end of the `btree_multimap`. - using Base::end; - - // btree_multimap::cend() - // - // Returns a const iterator to the end of the `btree_multimap`. - using Base::cend; - - // btree_multimap::empty() - // - // Returns whether or not the `btree_multimap` is empty. - using Base::empty; - - // btree_multimap::max_size() - // - // Returns the largest theoretical possible number of elements within a - // `btree_multimap` under current memory constraints. This value can be - // thought of as the largest value of `std::distance(begin(), end())` for a - // `btree_multimap`. - using Base::max_size; - - // btree_multimap::size() - // - // Returns the number of elements currently within the `btree_multimap`. - using Base::size; - - // btree_multimap::clear() - // - // Removes all elements from the `btree_multimap`. Invalidates any references, - // pointers, or iterators referring to contained elements. - using Base::clear; - - // btree_multimap::erase() - // - // Erases elements within the `btree_multimap`. If an erase occurs, any - // references, pointers, or iterators are invalidated. - // Overloads are listed below. - // - // iterator erase(iterator position): - // iterator erase(const_iterator position): - // - // Erases the element at `position` of the `btree_multimap`, returning - // the iterator pointing to the element after the one that was erased - // (or end() if none exists). - // - // iterator erase(const_iterator first, const_iterator last): - // - // Erases the elements in the open interval [`first`, `last`), returning - // the iterator pointing to the element after the interval that was erased - // (or end() if none exists). - // - // template size_type erase(const K& key): - // - // Erases the elements matching the key, if any exist, returning the - // number of elements erased. - using Base::erase; - - // btree_multimap::insert() - // - // Inserts an element of the specified value into the `btree_multimap`, - // returning an iterator pointing to the newly inserted element. - // Any references, pointers, or iterators are invalidated. Overloads are - // listed below. - // - // iterator insert(const value_type& value): - // - // Inserts a value into the `btree_multimap`, returning an iterator to the - // inserted element. - // - // iterator insert(value_type&& value): - // - // Inserts a moveable value into the `btree_multimap`, returning an iterator - // to the inserted element. - // - // iterator insert(const_iterator hint, const value_type& value): - // iterator insert(const_iterator hint, value_type&& value): - // - // Inserts a value, using the position of `hint` as a non-binding suggestion - // for where to begin the insertion search. Returns an iterator to the - // inserted element. - // - // void insert(InputIterator first, InputIterator last): - // - // Inserts a range of values [`first`, `last`). - // - // void insert(std::initializer_list ilist): - // - // Inserts the elements within the initializer list `ilist`. - using Base::insert; - - // btree_multimap::emplace() - // - // Inserts an element of the specified value by constructing it in-place - // within the `btree_multimap`. Any references, pointers, or iterators are - // invalidated. - using Base::emplace; - - // btree_multimap::emplace_hint() - // - // Inserts an element of the specified value by constructing it in-place - // within the `btree_multimap`, using the position of `hint` as a non-binding - // suggestion for where to begin the insertion search. - // - // Any references, pointers, or iterators are invalidated. - using Base::emplace_hint; - - // btree_multimap::extract() - // - // Extracts the indicated element, erasing it in the process, and returns it - // as a C++17-compatible node handle. Overloads are listed below. - // - // node_type extract(const_iterator position): - // - // Extracts the element at the indicated position and returns a node handle - // owning that extracted data. - // - // template node_type extract(const K& k): - // - // Extracts the element with the key matching the passed key value and - // returns a node handle owning that extracted data. If the `btree_multimap` - // does not contain an element with a matching key, this function returns an - // empty node handle. - // - // NOTE: when compiled in an earlier version of C++ than C++17, - // `node_type::key()` returns a const reference to the key instead of a - // mutable reference. We cannot safely return a mutable reference without - // std::launder (which is not available before C++17). - // - // NOTE: In this context, `node_type` refers to the C++17 concept of a - // move-only type that owns and provides access to the elements in associative - // containers (https://en.cppreference.com/w/cpp/container/node_handle). - // It does NOT refer to the data layout of the underlying btree. - using Base::extract; - - // btree_multimap::extract_and_get_next() - // - // Extracts the indicated element, erasing it in the process, and returns it - // as a C++17-compatible node handle along with an iterator to the next - // element. - // - // extract_and_get_next_return_type extract_and_get_next( - // const_iterator position): - // - // Extracts the element at the indicated position, returns a struct - // containing a member named `node`: a node handle owning that extracted - // data and a member named `next`: an iterator pointing to the next element - // in the btree. - using Base::extract_and_get_next; - - // btree_multimap::merge() - // - // Extracts all elements from a given `source` btree_multimap into this - // `btree_multimap`. - using Base::merge; - - // btree_multimap::swap(btree_multimap& other) - // - // Exchanges the contents of this `btree_multimap` with those of the `other` - // btree_multimap, avoiding invocation of any move, copy, or swap operations - // on individual elements. - // - // All iterators and references on the `btree_multimap` remain valid, - // excepting for the past-the-end iterator, which is invalidated. - using Base::swap; - - // btree_multimap::contains() - // - // template bool contains(const K& key) const: - // - // Determines whether an element comparing equal to the given `key` exists - // within the `btree_multimap`, returning `true` if so or `false` otherwise. - // - // Supports heterogeneous lookup, provided that the map has a compatible - // heterogeneous comparator. - using Base::contains; - - // btree_multimap::count() - // - // template size_type count(const K& key) const: - // - // Returns the number of elements comparing equal to the given `key` within - // the `btree_multimap`. - // - // Supports heterogeneous lookup, provided that the map has a compatible - // heterogeneous comparator. - using Base::count; - - // btree_multimap::equal_range() - // - // Returns a half-open range [first, last), defined by a `std::pair` of two - // iterators, containing all elements with the passed key in the - // `btree_multimap`. - using Base::equal_range; - - // btree_multimap::find() - // - // template iterator find(const K& key): - // template const_iterator find(const K& key) const: - // - // Finds an element with the passed `key` within the `btree_multimap`. - // - // Supports heterogeneous lookup, provided that the map has a compatible - // heterogeneous comparator. - using Base::find; - - // btree_multimap::lower_bound() - // - // template iterator lower_bound(const K& key): - // template const_iterator lower_bound(const K& key) const: - // - // Finds the first element with a key that is not less than `key` within the - // `btree_multimap`. - // - // Supports heterogeneous lookup, provided that the map has a compatible - // heterogeneous comparator. - using Base::lower_bound; - - // btree_multimap::upper_bound() - // - // template iterator upper_bound(const K& key): - // template const_iterator upper_bound(const K& key) const: - // - // Finds the first element with a key that is greater than `key` within the - // `btree_multimap`. - // - // Supports heterogeneous lookup, provided that the map has a compatible - // heterogeneous comparator. - using Base::upper_bound; - - // btree_multimap::get_allocator() - // - // Returns the allocator function associated with this `btree_multimap`. - using Base::get_allocator; - - // btree_multimap::key_comp(); - // - // Returns the key comparator associated with this `btree_multimap`. - using Base::key_comp; - - // btree_multimap::value_comp(); - // - // Returns the value comparator associated with this `btree_multimap`. - using Base::value_comp; -}; - -// absl::swap(absl::btree_multimap<>, absl::btree_multimap<>) -// -// Swaps the contents of two `absl::btree_multimap` containers. -template -void swap(btree_multimap &x, btree_multimap &y) { - return x.swap(y); -} - -// absl::erase_if(absl::btree_multimap<>, Pred) -// -// Erases all elements that satisfy the predicate pred from the container. -// Returns the number of erased elements. -template -typename btree_multimap::size_type erase_if( - btree_multimap &map, Pred pred) { - return container_internal::btree_access::erase_if(map, std::move(pred)); -} - -namespace container_internal { - -// A parameters structure for holding the type parameters for a btree_map. -// Compare and Alloc should be nothrow copy-constructible. -template -struct map_params : common_params> { - using super_type = typename map_params::common_params; - using mapped_type = Data; - // This type allows us to move keys when it is safe to do so. It is safe - // for maps in which value_type and mutable_value_type are layout compatible. - using slot_policy = typename super_type::slot_policy; - using slot_type = typename super_type::slot_type; - using value_type = typename super_type::value_type; - using init_type = typename super_type::init_type; - - template - static auto key(const V &value) -> decltype(value.first) { - return value.first; - } - static const Key &key(const slot_type *s) { return slot_policy::key(s); } - static const Key &key(slot_type *s) { return slot_policy::key(s); } - // For use in node handle. - static auto mutable_key(slot_type *s) - -> decltype(slot_policy::mutable_key(s)) { - return slot_policy::mutable_key(s); - } - static mapped_type &value(value_type *value) { return value->second; } -}; - -} // namespace container_internal - -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_CONTAINER_BTREE_MAP_H_ diff --git a/src/third_party/abseil-cpp/absl/container/btree_set.h b/src/third_party/abseil-cpp/absl/container/btree_set.h deleted file mode 100644 index 51dc42b797..0000000000 --- a/src/third_party/abseil-cpp/absl/container/btree_set.h +++ /dev/null @@ -1,821 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// ----------------------------------------------------------------------------- -// File: btree_set.h -// ----------------------------------------------------------------------------- -// -// This header file defines B-tree sets: sorted associative containers of -// values. -// -// * `absl::btree_set<>` -// * `absl::btree_multiset<>` -// -// These B-tree types are similar to the corresponding types in the STL -// (`std::set` and `std::multiset`) and generally conform to the STL interfaces -// of those types. However, because they are implemented using B-trees, they -// are more efficient in most situations. -// -// Unlike `std::set` and `std::multiset`, which are commonly implemented using -// red-black tree nodes, B-tree sets use more generic B-tree nodes able to hold -// multiple values per node. Holding multiple values per node often makes -// B-tree sets perform better than their `std::set` counterparts, because -// multiple entries can be checked within the same cache hit. -// -// However, these types should not be considered drop-in replacements for -// `std::set` and `std::multiset` as there are some API differences, which are -// noted in this header file. The most consequential differences with respect to -// migrating to b-tree from the STL types are listed in the next paragraph. -// Other API differences are minor. -// -// Importantly, insertions and deletions may invalidate outstanding iterators, -// pointers, and references to elements. Such invalidations are typically only -// an issue if insertion and deletion operations are interleaved with the use of -// more than one iterator, pointer, or reference simultaneously. For this -// reason, `insert()`, `erase()`, and `extract_and_get_next()` return a valid -// iterator at the current position. -// -// Another API difference is that btree iterators can be subtracted, and this -// is faster than using std::distance. - -#ifndef ABSL_CONTAINER_BTREE_SET_H_ -#define ABSL_CONTAINER_BTREE_SET_H_ - -#include "absl/container/internal/btree.h" // IWYU pragma: export -#include "absl/container/internal/btree_container.h" // IWYU pragma: export - -namespace absl { -ABSL_NAMESPACE_BEGIN - -namespace container_internal { - -template -struct set_slot_policy; - -template -struct set_params; - -} // namespace container_internal - -// absl::btree_set<> -// -// An `absl::btree_set` is an ordered associative container of unique key -// values designed to be a more efficient replacement for `std::set` (in most -// cases). -// -// Keys are sorted using an (optional) comparison function, which defaults to -// `std::less`. -// -// An `absl::btree_set` uses a default allocator of `std::allocator` to -// allocate (and deallocate) nodes, and construct and destruct values within -// those nodes. You may instead specify a custom allocator `A` (which in turn -// requires specifying a custom comparator `C`) as in -// `absl::btree_set`. -// -template , - typename Alloc = std::allocator> -class btree_set - : public container_internal::btree_set_container< - container_internal::btree>> { - using Base = typename btree_set::btree_set_container; - - public: - // Constructors and Assignment Operators - // - // A `btree_set` supports the same overload set as `std::set` - // for construction and assignment: - // - // * Default constructor - // - // absl::btree_set set1; - // - // * Initializer List constructor - // - // absl::btree_set set2 = - // {{"huey"}, {"dewey"}, {"louie"},}; - // - // * Copy constructor - // - // absl::btree_set set3(set2); - // - // * Copy assignment operator - // - // absl::btree_set set4; - // set4 = set3; - // - // * Move constructor - // - // // Move is guaranteed efficient - // absl::btree_set set5(std::move(set4)); - // - // * Move assignment operator - // - // // May be efficient if allocators are compatible - // absl::btree_set set6; - // set6 = std::move(set5); - // - // * Range constructor - // - // std::vector v = {"a", "b"}; - // absl::btree_set set7(v.begin(), v.end()); - btree_set() {} - using Base::Base; - - // btree_set::begin() - // - // Returns an iterator to the beginning of the `btree_set`. - using Base::begin; - - // btree_set::cbegin() - // - // Returns a const iterator to the beginning of the `btree_set`. - using Base::cbegin; - - // btree_set::end() - // - // Returns an iterator to the end of the `btree_set`. - using Base::end; - - // btree_set::cend() - // - // Returns a const iterator to the end of the `btree_set`. - using Base::cend; - - // btree_set::empty() - // - // Returns whether or not the `btree_set` is empty. - using Base::empty; - - // btree_set::max_size() - // - // Returns the largest theoretical possible number of elements within a - // `btree_set` under current memory constraints. This value can be thought - // of as the largest value of `std::distance(begin(), end())` for a - // `btree_set`. - using Base::max_size; - - // btree_set::size() - // - // Returns the number of elements currently within the `btree_set`. - using Base::size; - - // btree_set::clear() - // - // Removes all elements from the `btree_set`. Invalidates any references, - // pointers, or iterators referring to contained elements. - using Base::clear; - - // btree_set::erase() - // - // Erases elements within the `btree_set`. Overloads are listed below. - // - // iterator erase(iterator position): - // iterator erase(const_iterator position): - // - // Erases the element at `position` of the `btree_set`, returning - // the iterator pointing to the element after the one that was erased - // (or end() if none exists). - // - // iterator erase(const_iterator first, const_iterator last): - // - // Erases the elements in the open interval [`first`, `last`), returning - // the iterator pointing to the element after the interval that was erased - // (or end() if none exists). - // - // template size_type erase(const K& key): - // - // Erases the element with the matching key, if it exists, returning the - // number of elements erased (0 or 1). - using Base::erase; - - // btree_set::insert() - // - // Inserts an element of the specified value into the `btree_set`, - // returning an iterator pointing to the newly inserted element, provided that - // an element with the given key does not already exist. If an insertion - // occurs, any references, pointers, or iterators are invalidated. - // Overloads are listed below. - // - // std::pair insert(const value_type& value): - // - // Inserts a value into the `btree_set`. Returns a pair consisting of an - // iterator to the inserted element (or to the element that prevented the - // insertion) and a bool denoting whether the insertion took place. - // - // std::pair insert(value_type&& value): - // - // Inserts a moveable value into the `btree_set`. Returns a pair - // consisting of an iterator to the inserted element (or to the element that - // prevented the insertion) and a bool denoting whether the insertion took - // place. - // - // iterator insert(const_iterator hint, const value_type& value): - // iterator insert(const_iterator hint, value_type&& value): - // - // Inserts a value, using the position of `hint` as a non-binding suggestion - // for where to begin the insertion search. Returns an iterator to the - // inserted element, or to the existing element that prevented the - // insertion. - // - // void insert(InputIterator first, InputIterator last): - // - // Inserts a range of values [`first`, `last`). - // - // void insert(std::initializer_list ilist): - // - // Inserts the elements within the initializer list `ilist`. - using Base::insert; - - // btree_set::emplace() - // - // Inserts an element of the specified value by constructing it in-place - // within the `btree_set`, provided that no element with the given key - // already exists. - // - // The element may be constructed even if there already is an element with the - // key in the container, in which case the newly constructed element will be - // destroyed immediately. - // - // If an insertion occurs, any references, pointers, or iterators are - // invalidated. - using Base::emplace; - - // btree_set::emplace_hint() - // - // Inserts an element of the specified value by constructing it in-place - // within the `btree_set`, using the position of `hint` as a non-binding - // suggestion for where to begin the insertion search, and only inserts - // provided that no element with the given key already exists. - // - // The element may be constructed even if there already is an element with the - // key in the container, in which case the newly constructed element will be - // destroyed immediately. - // - // If an insertion occurs, any references, pointers, or iterators are - // invalidated. - using Base::emplace_hint; - - // btree_set::extract() - // - // Extracts the indicated element, erasing it in the process, and returns it - // as a C++17-compatible node handle. Any references, pointers, or iterators - // are invalidated. Overloads are listed below. - // - // node_type extract(const_iterator position): - // - // Extracts the element at the indicated position and returns a node handle - // owning that extracted data. - // - // template node_type extract(const K& k): - // - // Extracts the element with the key matching the passed key value and - // returns a node handle owning that extracted data. If the `btree_set` - // does not contain an element with a matching key, this function returns an - // empty node handle. - // - // NOTE: In this context, `node_type` refers to the C++17 concept of a - // move-only type that owns and provides access to the elements in associative - // containers (https://en.cppreference.com/w/cpp/container/node_handle). - // It does NOT refer to the data layout of the underlying btree. - using Base::extract; - - // btree_set::extract_and_get_next() - // - // Extracts the indicated element, erasing it in the process, and returns it - // as a C++17-compatible node handle along with an iterator to the next - // element. - // - // extract_and_get_next_return_type extract_and_get_next( - // const_iterator position): - // - // Extracts the element at the indicated position, returns a struct - // containing a member named `node`: a node handle owning that extracted - // data and a member named `next`: an iterator pointing to the next element - // in the btree. - using Base::extract_and_get_next; - - // btree_set::merge() - // - // Extracts elements from a given `source` btree_set into this - // `btree_set`. If the destination `btree_set` already contains an - // element with an equivalent key, that element is not extracted. - using Base::merge; - - // btree_set::swap(btree_set& other) - // - // Exchanges the contents of this `btree_set` with those of the `other` - // btree_set, avoiding invocation of any move, copy, or swap operations on - // individual elements. - // - // All iterators and references on the `btree_set` remain valid, excepting - // for the past-the-end iterator, which is invalidated. - using Base::swap; - - // btree_set::contains() - // - // template bool contains(const K& key) const: - // - // Determines whether an element comparing equal to the given `key` exists - // within the `btree_set`, returning `true` if so or `false` otherwise. - // - // Supports heterogeneous lookup, provided that the set has a compatible - // heterogeneous comparator. - using Base::contains; - - // btree_set::count() - // - // template size_type count(const K& key) const: - // - // Returns the number of elements comparing equal to the given `key` within - // the `btree_set`. Note that this function will return either `1` or `0` - // since duplicate elements are not allowed within a `btree_set`. - // - // Supports heterogeneous lookup, provided that the set has a compatible - // heterogeneous comparator. - using Base::count; - - // btree_set::equal_range() - // - // Returns a closed range [first, last], defined by a `std::pair` of two - // iterators, containing all elements with the passed key in the - // `btree_set`. - using Base::equal_range; - - // btree_set::find() - // - // template iterator find(const K& key): - // template const_iterator find(const K& key) const: - // - // Finds an element with the passed `key` within the `btree_set`. - // - // Supports heterogeneous lookup, provided that the set has a compatible - // heterogeneous comparator. - using Base::find; - - // btree_set::lower_bound() - // - // template iterator lower_bound(const K& key): - // template const_iterator lower_bound(const K& key) const: - // - // Finds the first element that is not less than `key` within the `btree_set`. - // - // Supports heterogeneous lookup, provided that the set has a compatible - // heterogeneous comparator. - using Base::lower_bound; - - // btree_set::upper_bound() - // - // template iterator upper_bound(const K& key): - // template const_iterator upper_bound(const K& key) const: - // - // Finds the first element that is greater than `key` within the `btree_set`. - // - // Supports heterogeneous lookup, provided that the set has a compatible - // heterogeneous comparator. - using Base::upper_bound; - - // btree_set::get_allocator() - // - // Returns the allocator function associated with this `btree_set`. - using Base::get_allocator; - - // btree_set::key_comp(); - // - // Returns the key comparator associated with this `btree_set`. - using Base::key_comp; - - // btree_set::value_comp(); - // - // Returns the value comparator associated with this `btree_set`. The keys to - // sort the elements are the values themselves, therefore `value_comp` and its - // sibling member function `key_comp` are equivalent. - using Base::value_comp; -}; - -// absl::swap(absl::btree_set<>, absl::btree_set<>) -// -// Swaps the contents of two `absl::btree_set` containers. -template -void swap(btree_set &x, btree_set &y) { - return x.swap(y); -} - -// absl::erase_if(absl::btree_set<>, Pred) -// -// Erases all elements that satisfy the predicate pred from the container. -// Returns the number of erased elements. -template -typename btree_set::size_type erase_if(btree_set &set, - Pred pred) { - return container_internal::btree_access::erase_if(set, std::move(pred)); -} - -// absl::btree_multiset<> -// -// An `absl::btree_multiset` is an ordered associative container of -// keys and associated values designed to be a more efficient replacement -// for `std::multiset` (in most cases). Unlike `absl::btree_set`, a B-tree -// multiset allows equivalent elements. -// -// Keys are sorted using an (optional) comparison function, which defaults to -// `std::less`. -// -// An `absl::btree_multiset` uses a default allocator of `std::allocator` -// to allocate (and deallocate) nodes, and construct and destruct values within -// those nodes. You may instead specify a custom allocator `A` (which in turn -// requires specifying a custom comparator `C`) as in -// `absl::btree_multiset`. -// -template , - typename Alloc = std::allocator> -class btree_multiset - : public container_internal::btree_multiset_container< - container_internal::btree>> { - using Base = typename btree_multiset::btree_multiset_container; - - public: - // Constructors and Assignment Operators - // - // A `btree_multiset` supports the same overload set as `std::set` - // for construction and assignment: - // - // * Default constructor - // - // absl::btree_multiset set1; - // - // * Initializer List constructor - // - // absl::btree_multiset set2 = - // {{"huey"}, {"dewey"}, {"louie"},}; - // - // * Copy constructor - // - // absl::btree_multiset set3(set2); - // - // * Copy assignment operator - // - // absl::btree_multiset set4; - // set4 = set3; - // - // * Move constructor - // - // // Move is guaranteed efficient - // absl::btree_multiset set5(std::move(set4)); - // - // * Move assignment operator - // - // // May be efficient if allocators are compatible - // absl::btree_multiset set6; - // set6 = std::move(set5); - // - // * Range constructor - // - // std::vector v = {"a", "b"}; - // absl::btree_multiset set7(v.begin(), v.end()); - btree_multiset() {} - using Base::Base; - - // btree_multiset::begin() - // - // Returns an iterator to the beginning of the `btree_multiset`. - using Base::begin; - - // btree_multiset::cbegin() - // - // Returns a const iterator to the beginning of the `btree_multiset`. - using Base::cbegin; - - // btree_multiset::end() - // - // Returns an iterator to the end of the `btree_multiset`. - using Base::end; - - // btree_multiset::cend() - // - // Returns a const iterator to the end of the `btree_multiset`. - using Base::cend; - - // btree_multiset::empty() - // - // Returns whether or not the `btree_multiset` is empty. - using Base::empty; - - // btree_multiset::max_size() - // - // Returns the largest theoretical possible number of elements within a - // `btree_multiset` under current memory constraints. This value can be - // thought of as the largest value of `std::distance(begin(), end())` for a - // `btree_multiset`. - using Base::max_size; - - // btree_multiset::size() - // - // Returns the number of elements currently within the `btree_multiset`. - using Base::size; - - // btree_multiset::clear() - // - // Removes all elements from the `btree_multiset`. Invalidates any references, - // pointers, or iterators referring to contained elements. - using Base::clear; - - // btree_multiset::erase() - // - // Erases elements within the `btree_multiset`. Overloads are listed below. - // - // iterator erase(iterator position): - // iterator erase(const_iterator position): - // - // Erases the element at `position` of the `btree_multiset`, returning - // the iterator pointing to the element after the one that was erased - // (or end() if none exists). - // - // iterator erase(const_iterator first, const_iterator last): - // - // Erases the elements in the open interval [`first`, `last`), returning - // the iterator pointing to the element after the interval that was erased - // (or end() if none exists). - // - // template size_type erase(const K& key): - // - // Erases the elements matching the key, if any exist, returning the - // number of elements erased. - using Base::erase; - - // btree_multiset::insert() - // - // Inserts an element of the specified value into the `btree_multiset`, - // returning an iterator pointing to the newly inserted element. - // Any references, pointers, or iterators are invalidated. Overloads are - // listed below. - // - // iterator insert(const value_type& value): - // - // Inserts a value into the `btree_multiset`, returning an iterator to the - // inserted element. - // - // iterator insert(value_type&& value): - // - // Inserts a moveable value into the `btree_multiset`, returning an iterator - // to the inserted element. - // - // iterator insert(const_iterator hint, const value_type& value): - // iterator insert(const_iterator hint, value_type&& value): - // - // Inserts a value, using the position of `hint` as a non-binding suggestion - // for where to begin the insertion search. Returns an iterator to the - // inserted element. - // - // void insert(InputIterator first, InputIterator last): - // - // Inserts a range of values [`first`, `last`). - // - // void insert(std::initializer_list ilist): - // - // Inserts the elements within the initializer list `ilist`. - using Base::insert; - - // btree_multiset::emplace() - // - // Inserts an element of the specified value by constructing it in-place - // within the `btree_multiset`. Any references, pointers, or iterators are - // invalidated. - using Base::emplace; - - // btree_multiset::emplace_hint() - // - // Inserts an element of the specified value by constructing it in-place - // within the `btree_multiset`, using the position of `hint` as a non-binding - // suggestion for where to begin the insertion search. - // - // Any references, pointers, or iterators are invalidated. - using Base::emplace_hint; - - // btree_multiset::extract() - // - // Extracts the indicated element, erasing it in the process, and returns it - // as a C++17-compatible node handle. Overloads are listed below. - // - // node_type extract(const_iterator position): - // - // Extracts the element at the indicated position and returns a node handle - // owning that extracted data. - // - // template node_type extract(const K& k): - // - // Extracts the element with the key matching the passed key value and - // returns a node handle owning that extracted data. If the `btree_multiset` - // does not contain an element with a matching key, this function returns an - // empty node handle. - // - // NOTE: In this context, `node_type` refers to the C++17 concept of a - // move-only type that owns and provides access to the elements in associative - // containers (https://en.cppreference.com/w/cpp/container/node_handle). - // It does NOT refer to the data layout of the underlying btree. - using Base::extract; - - // btree_multiset::extract_and_get_next() - // - // Extracts the indicated element, erasing it in the process, and returns it - // as a C++17-compatible node handle along with an iterator to the next - // element. - // - // extract_and_get_next_return_type extract_and_get_next( - // const_iterator position): - // - // Extracts the element at the indicated position, returns a struct - // containing a member named `node`: a node handle owning that extracted - // data and a member named `next`: an iterator pointing to the next element - // in the btree. - using Base::extract_and_get_next; - - // btree_multiset::merge() - // - // Extracts all elements from a given `source` btree_multiset into this - // `btree_multiset`. - using Base::merge; - - // btree_multiset::swap(btree_multiset& other) - // - // Exchanges the contents of this `btree_multiset` with those of the `other` - // btree_multiset, avoiding invocation of any move, copy, or swap operations - // on individual elements. - // - // All iterators and references on the `btree_multiset` remain valid, - // excepting for the past-the-end iterator, which is invalidated. - using Base::swap; - - // btree_multiset::contains() - // - // template bool contains(const K& key) const: - // - // Determines whether an element comparing equal to the given `key` exists - // within the `btree_multiset`, returning `true` if so or `false` otherwise. - // - // Supports heterogeneous lookup, provided that the set has a compatible - // heterogeneous comparator. - using Base::contains; - - // btree_multiset::count() - // - // template size_type count(const K& key) const: - // - // Returns the number of elements comparing equal to the given `key` within - // the `btree_multiset`. - // - // Supports heterogeneous lookup, provided that the set has a compatible - // heterogeneous comparator. - using Base::count; - - // btree_multiset::equal_range() - // - // Returns a closed range [first, last], defined by a `std::pair` of two - // iterators, containing all elements with the passed key in the - // `btree_multiset`. - using Base::equal_range; - - // btree_multiset::find() - // - // template iterator find(const K& key): - // template const_iterator find(const K& key) const: - // - // Finds an element with the passed `key` within the `btree_multiset`. - // - // Supports heterogeneous lookup, provided that the set has a compatible - // heterogeneous comparator. - using Base::find; - - // btree_multiset::lower_bound() - // - // template iterator lower_bound(const K& key): - // template const_iterator lower_bound(const K& key) const: - // - // Finds the first element that is not less than `key` within the - // `btree_multiset`. - // - // Supports heterogeneous lookup, provided that the set has a compatible - // heterogeneous comparator. - using Base::lower_bound; - - // btree_multiset::upper_bound() - // - // template iterator upper_bound(const K& key): - // template const_iterator upper_bound(const K& key) const: - // - // Finds the first element that is greater than `key` within the - // `btree_multiset`. - // - // Supports heterogeneous lookup, provided that the set has a compatible - // heterogeneous comparator. - using Base::upper_bound; - - // btree_multiset::get_allocator() - // - // Returns the allocator function associated with this `btree_multiset`. - using Base::get_allocator; - - // btree_multiset::key_comp(); - // - // Returns the key comparator associated with this `btree_multiset`. - using Base::key_comp; - - // btree_multiset::value_comp(); - // - // Returns the value comparator associated with this `btree_multiset`. The - // keys to sort the elements are the values themselves, therefore `value_comp` - // and its sibling member function `key_comp` are equivalent. - using Base::value_comp; -}; - -// absl::swap(absl::btree_multiset<>, absl::btree_multiset<>) -// -// Swaps the contents of two `absl::btree_multiset` containers. -template -void swap(btree_multiset &x, btree_multiset &y) { - return x.swap(y); -} - -// absl::erase_if(absl::btree_multiset<>, Pred) -// -// Erases all elements that satisfy the predicate pred from the container. -// Returns the number of erased elements. -template -typename btree_multiset::size_type erase_if( - btree_multiset & set, Pred pred) { - return container_internal::btree_access::erase_if(set, std::move(pred)); -} - -namespace container_internal { - -// This type implements the necessary functions from the -// absl::container_internal::slot_type interface for btree_(multi)set. -template -struct set_slot_policy { - using slot_type = Key; - using value_type = Key; - using mutable_value_type = Key; - - static value_type &element(slot_type *slot) { return *slot; } - static const value_type &element(const slot_type *slot) { return *slot; } - - template - static void construct(Alloc *alloc, slot_type *slot, Args &&...args) { - absl::allocator_traits::construct(*alloc, slot, - std::forward(args)...); - } - - template - static void construct(Alloc *alloc, slot_type *slot, slot_type *other) { - absl::allocator_traits::construct(*alloc, slot, std::move(*other)); - } - - template - static void construct(Alloc *alloc, slot_type *slot, const slot_type *other) { - absl::allocator_traits::construct(*alloc, slot, *other); - } - - template - static void destroy(Alloc *alloc, slot_type *slot) { - absl::allocator_traits::destroy(*alloc, slot); - } -}; - -// A parameters structure for holding the type parameters for a btree_set. -// Compare and Alloc should be nothrow copy-constructible. -template -struct set_params : common_params> { - using value_type = Key; - using slot_type = typename set_params::common_params::slot_type; - - template - static const V &key(const V &value) { - return value; - } - static const Key &key(const slot_type *slot) { return *slot; } - static const Key &key(slot_type *slot) { return *slot; } -}; - -} // namespace container_internal - -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_CONTAINER_BTREE_SET_H_ diff --git a/src/third_party/abseil-cpp/absl/container/btree_test.cc b/src/third_party/abseil-cpp/absl/container/btree_test.cc deleted file mode 100644 index cc763b292e..0000000000 --- a/src/third_party/abseil-cpp/absl/container/btree_test.cc +++ /dev/null @@ -1,3470 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/container/btree_test.h" - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "gmock/gmock.h" -#include "gtest/gtest.h" -#include "absl/algorithm/container.h" -#include "absl/base/internal/raw_logging.h" -#include "absl/base/macros.h" -#include "absl/container/btree_map.h" -#include "absl/container/btree_set.h" -#include "absl/container/internal/counting_allocator.h" -#include "absl/container/internal/test_instance_tracker.h" -#include "absl/flags/flag.h" -#include "absl/hash/hash_testing.h" -#include "absl/memory/memory.h" -#include "absl/random/random.h" -#include "absl/strings/str_cat.h" -#include "absl/strings/str_split.h" -#include "absl/strings/string_view.h" -#include "absl/types/compare.h" - -ABSL_FLAG(int, test_values, 10000, "The number of values to use for tests"); - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace container_internal { -namespace { - -using ::absl::test_internal::CopyableMovableInstance; -using ::absl::test_internal::InstanceTracker; -using ::absl::test_internal::MovableOnlyInstance; -using ::testing::ElementsAre; -using ::testing::ElementsAreArray; -using ::testing::IsEmpty; -using ::testing::IsNull; -using ::testing::Pair; -using ::testing::SizeIs; - -template -void CheckPairEquals(const T &x, const U &y) { - ABSL_INTERNAL_CHECK(x == y, "Values are unequal."); -} - -template -void CheckPairEquals(const std::pair &x, const std::pair &y) { - CheckPairEquals(x.first, y.first); - CheckPairEquals(x.second, y.second); -} - -bool IsAssertEnabled() { - // Use an assert with side-effects to figure out if they are actually enabled. - bool assert_enabled = false; - assert([&]() { // NOLINT - assert_enabled = true; - return true; - }()); - return assert_enabled; -} -} // namespace - -// The base class for a sorted associative container checker. TreeType is the -// container type to check and CheckerType is the container type to check -// against. TreeType is expected to be btree_{set,map,multiset,multimap} and -// CheckerType is expected to be {set,map,multiset,multimap}. -template -class base_checker { - public: - using key_type = typename TreeType::key_type; - using value_type = typename TreeType::value_type; - using key_compare = typename TreeType::key_compare; - using pointer = typename TreeType::pointer; - using const_pointer = typename TreeType::const_pointer; - using reference = typename TreeType::reference; - using const_reference = typename TreeType::const_reference; - using size_type = typename TreeType::size_type; - using difference_type = typename TreeType::difference_type; - using iterator = typename TreeType::iterator; - using const_iterator = typename TreeType::const_iterator; - using reverse_iterator = typename TreeType::reverse_iterator; - using const_reverse_iterator = typename TreeType::const_reverse_iterator; - - public: - base_checker() : const_tree_(tree_) {} - base_checker(const base_checker &other) - : tree_(other.tree_), const_tree_(tree_), checker_(other.checker_) {} - template - base_checker(InputIterator b, InputIterator e) - : tree_(b, e), const_tree_(tree_), checker_(b, e) {} - - iterator begin() { return tree_.begin(); } - const_iterator begin() const { return tree_.begin(); } - iterator end() { return tree_.end(); } - const_iterator end() const { return tree_.end(); } - reverse_iterator rbegin() { return tree_.rbegin(); } - const_reverse_iterator rbegin() const { return tree_.rbegin(); } - reverse_iterator rend() { return tree_.rend(); } - const_reverse_iterator rend() const { return tree_.rend(); } - - template - IterType iter_check(IterType tree_iter, CheckerIterType checker_iter) const { - if (tree_iter == tree_.end()) { - ABSL_INTERNAL_CHECK(checker_iter == checker_.end(), - "Checker iterator not at end."); - } else { - CheckPairEquals(*tree_iter, *checker_iter); - } - return tree_iter; - } - template - IterType riter_check(IterType tree_iter, CheckerIterType checker_iter) const { - if (tree_iter == tree_.rend()) { - ABSL_INTERNAL_CHECK(checker_iter == checker_.rend(), - "Checker iterator not at rend."); - } else { - CheckPairEquals(*tree_iter, *checker_iter); - } - return tree_iter; - } - void value_check(const value_type &v) { - typename KeyOfValue::type key_of_value; - const key_type &key = key_of_value(v); - CheckPairEquals(*find(key), v); - lower_bound(key); - upper_bound(key); - equal_range(key); - contains(key); - count(key); - } - void erase_check(const key_type &key) { - EXPECT_FALSE(tree_.contains(key)); - EXPECT_EQ(tree_.find(key), const_tree_.end()); - EXPECT_FALSE(const_tree_.contains(key)); - EXPECT_EQ(const_tree_.find(key), tree_.end()); - EXPECT_EQ(tree_.equal_range(key).first, - const_tree_.equal_range(key).second); - } - - iterator lower_bound(const key_type &key) { - return iter_check(tree_.lower_bound(key), checker_.lower_bound(key)); - } - const_iterator lower_bound(const key_type &key) const { - return iter_check(tree_.lower_bound(key), checker_.lower_bound(key)); - } - iterator upper_bound(const key_type &key) { - return iter_check(tree_.upper_bound(key), checker_.upper_bound(key)); - } - const_iterator upper_bound(const key_type &key) const { - return iter_check(tree_.upper_bound(key), checker_.upper_bound(key)); - } - std::pair equal_range(const key_type &key) { - std::pair - checker_res = checker_.equal_range(key); - std::pair tree_res = tree_.equal_range(key); - iter_check(tree_res.first, checker_res.first); - iter_check(tree_res.second, checker_res.second); - return tree_res; - } - std::pair equal_range( - const key_type &key) const { - std::pair - checker_res = checker_.equal_range(key); - std::pair tree_res = tree_.equal_range(key); - iter_check(tree_res.first, checker_res.first); - iter_check(tree_res.second, checker_res.second); - return tree_res; - } - iterator find(const key_type &key) { - return iter_check(tree_.find(key), checker_.find(key)); - } - const_iterator find(const key_type &key) const { - return iter_check(tree_.find(key), checker_.find(key)); - } - bool contains(const key_type &key) const { return find(key) != end(); } - size_type count(const key_type &key) const { - size_type res = checker_.count(key); - EXPECT_EQ(res, tree_.count(key)); - return res; - } - - base_checker &operator=(const base_checker &other) { - tree_ = other.tree_; - checker_ = other.checker_; - return *this; - } - - int erase(const key_type &key) { - int size = tree_.size(); - int res = checker_.erase(key); - EXPECT_EQ(res, tree_.count(key)); - EXPECT_EQ(res, tree_.erase(key)); - EXPECT_EQ(tree_.count(key), 0); - EXPECT_EQ(tree_.size(), size - res); - erase_check(key); - return res; - } - iterator erase(iterator iter) { - key_type key = iter.key(); - int size = tree_.size(); - int count = tree_.count(key); - auto checker_iter = checker_.lower_bound(key); - for (iterator tmp(tree_.lower_bound(key)); tmp != iter; ++tmp) { - ++checker_iter; - } - auto checker_next = checker_iter; - ++checker_next; - checker_.erase(checker_iter); - iter = tree_.erase(iter); - EXPECT_EQ(tree_.size(), checker_.size()); - EXPECT_EQ(tree_.size(), size - 1); - EXPECT_EQ(tree_.count(key), count - 1); - if (count == 1) { - erase_check(key); - } - return iter_check(iter, checker_next); - } - - void erase(iterator begin, iterator end) { - int size = tree_.size(); - int count = std::distance(begin, end); - auto checker_begin = checker_.lower_bound(begin.key()); - for (iterator tmp(tree_.lower_bound(begin.key())); tmp != begin; ++tmp) { - ++checker_begin; - } - auto checker_end = - end == tree_.end() ? checker_.end() : checker_.lower_bound(end.key()); - if (end != tree_.end()) { - for (iterator tmp(tree_.lower_bound(end.key())); tmp != end; ++tmp) { - ++checker_end; - } - } - const auto checker_ret = checker_.erase(checker_begin, checker_end); - const auto tree_ret = tree_.erase(begin, end); - EXPECT_EQ(std::distance(checker_.begin(), checker_ret), - std::distance(tree_.begin(), tree_ret)); - EXPECT_EQ(tree_.size(), checker_.size()); - EXPECT_EQ(tree_.size(), size - count); - } - - void clear() { - tree_.clear(); - checker_.clear(); - } - void swap(base_checker &other) { - tree_.swap(other.tree_); - checker_.swap(other.checker_); - } - - void verify() const { - tree_.verify(); - EXPECT_EQ(tree_.size(), checker_.size()); - - // Move through the forward iterators using increment. - auto checker_iter = checker_.begin(); - const_iterator tree_iter(tree_.begin()); - for (; tree_iter != tree_.end(); ++tree_iter, ++checker_iter) { - CheckPairEquals(*tree_iter, *checker_iter); - } - - // Move through the forward iterators using decrement. - for (int n = tree_.size() - 1; n >= 0; --n) { - iter_check(tree_iter, checker_iter); - --tree_iter; - --checker_iter; - } - EXPECT_EQ(tree_iter, tree_.begin()); - EXPECT_EQ(checker_iter, checker_.begin()); - - // Move through the reverse iterators using increment. - auto checker_riter = checker_.rbegin(); - const_reverse_iterator tree_riter(tree_.rbegin()); - for (; tree_riter != tree_.rend(); ++tree_riter, ++checker_riter) { - CheckPairEquals(*tree_riter, *checker_riter); - } - - // Move through the reverse iterators using decrement. - for (int n = tree_.size() - 1; n >= 0; --n) { - riter_check(tree_riter, checker_riter); - --tree_riter; - --checker_riter; - } - EXPECT_EQ(tree_riter, tree_.rbegin()); - EXPECT_EQ(checker_riter, checker_.rbegin()); - } - - const TreeType &tree() const { return tree_; } - - size_type size() const { - EXPECT_EQ(tree_.size(), checker_.size()); - return tree_.size(); - } - size_type max_size() const { return tree_.max_size(); } - bool empty() const { - EXPECT_EQ(tree_.empty(), checker_.empty()); - return tree_.empty(); - } - - protected: - TreeType tree_; - const TreeType &const_tree_; - CheckerType checker_; -}; - -namespace { -// A checker for unique sorted associative containers. TreeType is expected to -// be btree_{set,map} and CheckerType is expected to be {set,map}. -template -class unique_checker : public base_checker { - using super_type = base_checker; - - public: - using iterator = typename super_type::iterator; - using value_type = typename super_type::value_type; - - public: - unique_checker() : super_type() {} - unique_checker(const unique_checker &other) : super_type(other) {} - template - unique_checker(InputIterator b, InputIterator e) : super_type(b, e) {} - unique_checker &operator=(const unique_checker &) = default; - - // Insertion routines. - std::pair insert(const value_type &v) { - int size = this->tree_.size(); - std::pair checker_res = - this->checker_.insert(v); - std::pair tree_res = this->tree_.insert(v); - CheckPairEquals(*tree_res.first, *checker_res.first); - EXPECT_EQ(tree_res.second, checker_res.second); - EXPECT_EQ(this->tree_.size(), this->checker_.size()); - EXPECT_EQ(this->tree_.size(), size + tree_res.second); - return tree_res; - } - iterator insert(iterator position, const value_type &v) { - int size = this->tree_.size(); - std::pair checker_res = - this->checker_.insert(v); - iterator tree_res = this->tree_.insert(position, v); - CheckPairEquals(*tree_res, *checker_res.first); - EXPECT_EQ(this->tree_.size(), this->checker_.size()); - EXPECT_EQ(this->tree_.size(), size + checker_res.second); - return tree_res; - } - template - void insert(InputIterator b, InputIterator e) { - for (; b != e; ++b) { - insert(*b); - } - } -}; - -// A checker for multiple sorted associative containers. TreeType is expected -// to be btree_{multiset,multimap} and CheckerType is expected to be -// {multiset,multimap}. -template -class multi_checker : public base_checker { - using super_type = base_checker; - - public: - using iterator = typename super_type::iterator; - using value_type = typename super_type::value_type; - - public: - multi_checker() : super_type() {} - multi_checker(const multi_checker &other) : super_type(other) {} - template - multi_checker(InputIterator b, InputIterator e) : super_type(b, e) {} - multi_checker &operator=(const multi_checker &) = default; - - // Insertion routines. - iterator insert(const value_type &v) { - int size = this->tree_.size(); - auto checker_res = this->checker_.insert(v); - iterator tree_res = this->tree_.insert(v); - CheckPairEquals(*tree_res, *checker_res); - EXPECT_EQ(this->tree_.size(), this->checker_.size()); - EXPECT_EQ(this->tree_.size(), size + 1); - return tree_res; - } - iterator insert(iterator position, const value_type &v) { - int size = this->tree_.size(); - auto checker_res = this->checker_.insert(v); - iterator tree_res = this->tree_.insert(position, v); - CheckPairEquals(*tree_res, *checker_res); - EXPECT_EQ(this->tree_.size(), this->checker_.size()); - EXPECT_EQ(this->tree_.size(), size + 1); - return tree_res; - } - template - void insert(InputIterator b, InputIterator e) { - for (; b != e; ++b) { - insert(*b); - } - } -}; - -template -void DoTest(const char *name, T *b, const std::vector &values) { - typename KeyOfValue::type key_of_value; - - T &mutable_b = *b; - const T &const_b = *b; - - // Test insert. - for (int i = 0; i < values.size(); ++i) { - mutable_b.insert(values[i]); - mutable_b.value_check(values[i]); - } - ASSERT_EQ(mutable_b.size(), values.size()); - - const_b.verify(); - - // Test copy constructor. - T b_copy(const_b); - EXPECT_EQ(b_copy.size(), const_b.size()); - for (int i = 0; i < values.size(); ++i) { - CheckPairEquals(*b_copy.find(key_of_value(values[i])), values[i]); - } - - // Test range constructor. - T b_range(const_b.begin(), const_b.end()); - EXPECT_EQ(b_range.size(), const_b.size()); - for (int i = 0; i < values.size(); ++i) { - CheckPairEquals(*b_range.find(key_of_value(values[i])), values[i]); - } - - // Test range insertion for values that already exist. - b_range.insert(b_copy.begin(), b_copy.end()); - b_range.verify(); - - // Test range insertion for new values. - b_range.clear(); - b_range.insert(b_copy.begin(), b_copy.end()); - EXPECT_EQ(b_range.size(), b_copy.size()); - for (int i = 0; i < values.size(); ++i) { - CheckPairEquals(*b_range.find(key_of_value(values[i])), values[i]); - } - - // Test assignment to self. Nothing should change. - b_range.operator=(b_range); - EXPECT_EQ(b_range.size(), b_copy.size()); - - // Test assignment of new values. - b_range.clear(); - b_range = b_copy; - EXPECT_EQ(b_range.size(), b_copy.size()); - - // Test swap. - b_range.clear(); - b_range.swap(b_copy); - EXPECT_EQ(b_copy.size(), 0); - EXPECT_EQ(b_range.size(), const_b.size()); - for (int i = 0; i < values.size(); ++i) { - CheckPairEquals(*b_range.find(key_of_value(values[i])), values[i]); - } - b_range.swap(b_copy); - - // Test non-member function swap. - swap(b_range, b_copy); - EXPECT_EQ(b_copy.size(), 0); - EXPECT_EQ(b_range.size(), const_b.size()); - for (int i = 0; i < values.size(); ++i) { - CheckPairEquals(*b_range.find(key_of_value(values[i])), values[i]); - } - swap(b_range, b_copy); - - // Test erase via values. - for (int i = 0; i < values.size(); ++i) { - mutable_b.erase(key_of_value(values[i])); - // Erasing a non-existent key should have no effect. - ASSERT_EQ(mutable_b.erase(key_of_value(values[i])), 0); - } - - const_b.verify(); - EXPECT_EQ(const_b.size(), 0); - - // Test erase via iterators. - mutable_b = b_copy; - for (int i = 0; i < values.size(); ++i) { - mutable_b.erase(mutable_b.find(key_of_value(values[i]))); - } - - const_b.verify(); - EXPECT_EQ(const_b.size(), 0); - - // Test insert with hint. - for (int i = 0; i < values.size(); i++) { - mutable_b.insert(mutable_b.upper_bound(key_of_value(values[i])), values[i]); - } - - const_b.verify(); - - // Test range erase. - mutable_b.erase(mutable_b.begin(), mutable_b.end()); - EXPECT_EQ(mutable_b.size(), 0); - const_b.verify(); - - // First half. - mutable_b = b_copy; - typename T::iterator mutable_iter_end = mutable_b.begin(); - for (int i = 0; i < values.size() / 2; ++i) ++mutable_iter_end; - mutable_b.erase(mutable_b.begin(), mutable_iter_end); - EXPECT_EQ(mutable_b.size(), values.size() - values.size() / 2); - const_b.verify(); - - // Second half. - mutable_b = b_copy; - typename T::iterator mutable_iter_begin = mutable_b.begin(); - for (int i = 0; i < values.size() / 2; ++i) ++mutable_iter_begin; - mutable_b.erase(mutable_iter_begin, mutable_b.end()); - EXPECT_EQ(mutable_b.size(), values.size() / 2); - const_b.verify(); - - // Second quarter. - mutable_b = b_copy; - mutable_iter_begin = mutable_b.begin(); - for (int i = 0; i < values.size() / 4; ++i) ++mutable_iter_begin; - mutable_iter_end = mutable_iter_begin; - for (int i = 0; i < values.size() / 4; ++i) ++mutable_iter_end; - mutable_b.erase(mutable_iter_begin, mutable_iter_end); - EXPECT_EQ(mutable_b.size(), values.size() - values.size() / 4); - const_b.verify(); - - mutable_b.clear(); -} - -template -void ConstTest() { - using value_type = typename T::value_type; - typename KeyOfValue::type key_of_value; - - T mutable_b; - const T &const_b = mutable_b; - - // Insert a single value into the container and test looking it up. - value_type value = Generator(2)(2); - mutable_b.insert(value); - EXPECT_TRUE(mutable_b.contains(key_of_value(value))); - EXPECT_NE(mutable_b.find(key_of_value(value)), const_b.end()); - EXPECT_TRUE(const_b.contains(key_of_value(value))); - EXPECT_NE(const_b.find(key_of_value(value)), mutable_b.end()); - EXPECT_EQ(*const_b.lower_bound(key_of_value(value)), value); - EXPECT_EQ(const_b.upper_bound(key_of_value(value)), const_b.end()); - EXPECT_EQ(*const_b.equal_range(key_of_value(value)).first, value); - - // We can only create a non-const iterator from a non-const container. - typename T::iterator mutable_iter(mutable_b.begin()); - EXPECT_EQ(mutable_iter, const_b.begin()); - EXPECT_NE(mutable_iter, const_b.end()); - EXPECT_EQ(const_b.begin(), mutable_iter); - EXPECT_NE(const_b.end(), mutable_iter); - typename T::reverse_iterator mutable_riter(mutable_b.rbegin()); - EXPECT_EQ(mutable_riter, const_b.rbegin()); - EXPECT_NE(mutable_riter, const_b.rend()); - EXPECT_EQ(const_b.rbegin(), mutable_riter); - EXPECT_NE(const_b.rend(), mutable_riter); - - // We can create a const iterator from a non-const iterator. - typename T::const_iterator const_iter(mutable_iter); - EXPECT_EQ(const_iter, mutable_b.begin()); - EXPECT_NE(const_iter, mutable_b.end()); - EXPECT_EQ(mutable_b.begin(), const_iter); - EXPECT_NE(mutable_b.end(), const_iter); - typename T::const_reverse_iterator const_riter(mutable_riter); - EXPECT_EQ(const_riter, mutable_b.rbegin()); - EXPECT_NE(const_riter, mutable_b.rend()); - EXPECT_EQ(mutable_b.rbegin(), const_riter); - EXPECT_NE(mutable_b.rend(), const_riter); - - // Make sure various methods can be invoked on a const container. - const_b.verify(); - ASSERT_TRUE(!const_b.empty()); - EXPECT_EQ(const_b.size(), 1); - EXPECT_GT(const_b.max_size(), 0); - EXPECT_TRUE(const_b.contains(key_of_value(value))); - EXPECT_EQ(const_b.count(key_of_value(value)), 1); -} - -template -void BtreeTest() { - ConstTest(); - - using V = typename remove_pair_const::type; - const std::vector random_values = GenerateValuesWithSeed( - absl::GetFlag(FLAGS_test_values), 4 * absl::GetFlag(FLAGS_test_values), - GTEST_FLAG_GET(random_seed)); - - unique_checker container; - - // Test key insertion/deletion in sorted order. - std::vector sorted_values(random_values); - std::sort(sorted_values.begin(), sorted_values.end()); - DoTest("sorted: ", &container, sorted_values); - - // Test key insertion/deletion in reverse sorted order. - std::reverse(sorted_values.begin(), sorted_values.end()); - DoTest("rsorted: ", &container, sorted_values); - - // Test key insertion/deletion in random order. - DoTest("random: ", &container, random_values); -} - -template -void BtreeMultiTest() { - ConstTest(); - - using V = typename remove_pair_const::type; - const std::vector random_values = GenerateValuesWithSeed( - absl::GetFlag(FLAGS_test_values), 4 * absl::GetFlag(FLAGS_test_values), - GTEST_FLAG_GET(random_seed)); - - multi_checker container; - - // Test keys in sorted order. - std::vector sorted_values(random_values); - std::sort(sorted_values.begin(), sorted_values.end()); - DoTest("sorted: ", &container, sorted_values); - - // Test keys in reverse sorted order. - std::reverse(sorted_values.begin(), sorted_values.end()); - DoTest("rsorted: ", &container, sorted_values); - - // Test keys in random order. - DoTest("random: ", &container, random_values); - - // Test keys in random order w/ duplicates. - std::vector duplicate_values(random_values); - duplicate_values.insert(duplicate_values.end(), random_values.begin(), - random_values.end()); - DoTest("duplicates:", &container, duplicate_values); - - // Test all identical keys. - std::vector identical_values(100); - std::fill(identical_values.begin(), identical_values.end(), - Generator(2)(2)); - DoTest("identical: ", &container, identical_values); -} - -template -struct PropagatingCountingAlloc : public CountingAllocator { - using propagate_on_container_copy_assignment = std::true_type; - using propagate_on_container_move_assignment = std::true_type; - using propagate_on_container_swap = std::true_type; - - using Base = CountingAllocator; - using Base::Base; - - template - explicit PropagatingCountingAlloc(const PropagatingCountingAlloc &other) - : Base(other.bytes_used_) {} - - template - struct rebind { - using other = PropagatingCountingAlloc; - }; -}; - -template -void BtreeAllocatorTest() { - using value_type = typename T::value_type; - - int64_t bytes1 = 0, bytes2 = 0; - PropagatingCountingAlloc allocator1(&bytes1); - PropagatingCountingAlloc allocator2(&bytes2); - Generator generator(1000); - - // Test that we allocate properly aligned memory. If we don't, then Layout - // will assert fail. - auto unused1 = allocator1.allocate(1); - auto unused2 = allocator2.allocate(1); - - // Test copy assignment - { - T b1(typename T::key_compare(), allocator1); - T b2(typename T::key_compare(), allocator2); - - int64_t original_bytes1 = bytes1; - b1.insert(generator(0)); - EXPECT_GT(bytes1, original_bytes1); - - // This should propagate the allocator. - b1 = b2; - EXPECT_EQ(b1.size(), 0); - EXPECT_EQ(b2.size(), 0); - EXPECT_EQ(bytes1, original_bytes1); - - for (int i = 1; i < 1000; i++) { - b1.insert(generator(i)); - } - - // We should have allocated out of allocator2. - EXPECT_GT(bytes2, bytes1); - } - - // Test move assignment - { - T b1(typename T::key_compare(), allocator1); - T b2(typename T::key_compare(), allocator2); - - int64_t original_bytes1 = bytes1; - b1.insert(generator(0)); - EXPECT_GT(bytes1, original_bytes1); - - // This should propagate the allocator. - b1 = std::move(b2); - EXPECT_EQ(b1.size(), 0); - EXPECT_EQ(bytes1, original_bytes1); - - for (int i = 1; i < 1000; i++) { - b1.insert(generator(i)); - } - - // We should have allocated out of allocator2. - EXPECT_GT(bytes2, bytes1); - } - - // Test swap - { - T b1(typename T::key_compare(), allocator1); - T b2(typename T::key_compare(), allocator2); - - int64_t original_bytes1 = bytes1; - b1.insert(generator(0)); - EXPECT_GT(bytes1, original_bytes1); - - // This should swap the allocators. - swap(b1, b2); - EXPECT_EQ(b1.size(), 0); - EXPECT_EQ(b2.size(), 1); - EXPECT_GT(bytes1, original_bytes1); - - for (int i = 1; i < 1000; i++) { - b1.insert(generator(i)); - } - - // We should have allocated out of allocator2. - EXPECT_GT(bytes2, bytes1); - } - - allocator1.deallocate(unused1, 1); - allocator2.deallocate(unused2, 1); -} - -template -void BtreeMapTest() { - using value_type = typename T::value_type; - using mapped_type = typename T::mapped_type; - - mapped_type m = Generator(0)(0); - (void)m; - - T b; - - // Verify we can insert using operator[]. - for (int i = 0; i < 1000; i++) { - value_type v = Generator(1000)(i); - b[v.first] = v.second; - } - EXPECT_EQ(b.size(), 1000); - - // Test whether we can use the "->" operator on iterators and - // reverse_iterators. This stresses the btree_map_params::pair_pointer - // mechanism. - EXPECT_EQ(b.begin()->first, Generator(1000)(0).first); - EXPECT_EQ(b.begin()->second, Generator(1000)(0).second); - EXPECT_EQ(b.rbegin()->first, Generator(1000)(999).first); - EXPECT_EQ(b.rbegin()->second, Generator(1000)(999).second); -} - -template -void BtreeMultiMapTest() { - using mapped_type = typename T::mapped_type; - mapped_type m = Generator(0)(0); - (void)m; -} - -template -void SetTest() { - EXPECT_EQ( - sizeof(absl::btree_set), - 2 * sizeof(void *) + sizeof(typename absl::btree_set::size_type)); - using BtreeSet = absl::btree_set; - using CountingBtreeSet = - absl::btree_set, PropagatingCountingAlloc>; - BtreeTest>(); - BtreeAllocatorTest(); -} - -template -void MapTest() { - EXPECT_EQ( - sizeof(absl::btree_map), - 2 * sizeof(void *) + sizeof(typename absl::btree_map::size_type)); - using BtreeMap = absl::btree_map; - using CountingBtreeMap = - absl::btree_map, - PropagatingCountingAlloc>>; - BtreeTest>(); - BtreeAllocatorTest(); - BtreeMapTest(); -} - -TEST(Btree, set_int32) { SetTest(); } -TEST(Btree, set_int64) { SetTest(); } -TEST(Btree, set_string) { SetTest(); } -TEST(Btree, set_cord) { SetTest(); } -TEST(Btree, set_pair) { SetTest>(); } -TEST(Btree, map_int32) { MapTest(); } -TEST(Btree, map_int64) { MapTest(); } -TEST(Btree, map_string) { MapTest(); } -TEST(Btree, map_cord) { MapTest(); } -TEST(Btree, map_pair) { MapTest>(); } - -template -void MultiSetTest() { - EXPECT_EQ( - sizeof(absl::btree_multiset), - 2 * sizeof(void *) + sizeof(typename absl::btree_multiset::size_type)); - using BtreeMSet = absl::btree_multiset; - using CountingBtreeMSet = - absl::btree_multiset, PropagatingCountingAlloc>; - BtreeMultiTest>(); - BtreeAllocatorTest(); -} - -template -void MultiMapTest() { - EXPECT_EQ(sizeof(absl::btree_multimap), - 2 * sizeof(void *) + - sizeof(typename absl::btree_multimap::size_type)); - using BtreeMMap = absl::btree_multimap; - using CountingBtreeMMap = - absl::btree_multimap, - PropagatingCountingAlloc>>; - BtreeMultiTest>(); - BtreeMultiMapTest(); - BtreeAllocatorTest(); -} - -TEST(Btree, multiset_int32) { MultiSetTest(); } -TEST(Btree, multiset_int64) { MultiSetTest(); } -TEST(Btree, multiset_string) { MultiSetTest(); } -TEST(Btree, multiset_cord) { MultiSetTest(); } -TEST(Btree, multiset_pair) { MultiSetTest>(); } -TEST(Btree, multimap_int32) { MultiMapTest(); } -TEST(Btree, multimap_int64) { MultiMapTest(); } -TEST(Btree, multimap_string) { MultiMapTest(); } -TEST(Btree, multimap_cord) { MultiMapTest(); } -TEST(Btree, multimap_pair) { MultiMapTest>(); } - -struct CompareIntToString { - bool operator()(const std::string &a, const std::string &b) const { - return a < b; - } - bool operator()(const std::string &a, int b) const { - return a < absl::StrCat(b); - } - bool operator()(int a, const std::string &b) const { - return absl::StrCat(a) < b; - } - using is_transparent = void; -}; - -struct NonTransparentCompare { - template - bool operator()(const T &t, const U &u) const { - // Treating all comparators as transparent can cause inefficiencies (see - // N3657 C++ proposal). Test that for comparators without 'is_transparent' - // alias (like this one), we do not attempt heterogeneous lookup. - EXPECT_TRUE((std::is_same())); - return t < u; - } -}; - -template -bool CanEraseWithEmptyBrace(T t, decltype(t.erase({})) *) { - return true; -} - -template -bool CanEraseWithEmptyBrace(T, ...) { - return false; -} - -template -void TestHeterogeneous(T table) { - auto lb = table.lower_bound("3"); - EXPECT_EQ(lb, table.lower_bound(3)); - EXPECT_NE(lb, table.lower_bound(4)); - EXPECT_EQ(lb, table.lower_bound({"3"})); - EXPECT_NE(lb, table.lower_bound({})); - - auto ub = table.upper_bound("3"); - EXPECT_EQ(ub, table.upper_bound(3)); - EXPECT_NE(ub, table.upper_bound(5)); - EXPECT_EQ(ub, table.upper_bound({"3"})); - EXPECT_NE(ub, table.upper_bound({})); - - auto er = table.equal_range("3"); - EXPECT_EQ(er, table.equal_range(3)); - EXPECT_NE(er, table.equal_range(4)); - EXPECT_EQ(er, table.equal_range({"3"})); - EXPECT_NE(er, table.equal_range({})); - - auto it = table.find("3"); - EXPECT_EQ(it, table.find(3)); - EXPECT_NE(it, table.find(4)); - EXPECT_EQ(it, table.find({"3"})); - EXPECT_NE(it, table.find({})); - - EXPECT_TRUE(table.contains(3)); - EXPECT_FALSE(table.contains(4)); - EXPECT_TRUE(table.count({"3"})); - EXPECT_FALSE(table.contains({})); - - EXPECT_EQ(1, table.count(3)); - EXPECT_EQ(0, table.count(4)); - EXPECT_EQ(1, table.count({"3"})); - EXPECT_EQ(0, table.count({})); - - auto copy = table; - copy.erase(3); - EXPECT_EQ(table.size() - 1, copy.size()); - copy.erase(4); - EXPECT_EQ(table.size() - 1, copy.size()); - copy.erase({"5"}); - EXPECT_EQ(table.size() - 2, copy.size()); - EXPECT_FALSE(CanEraseWithEmptyBrace(table, nullptr)); - - // Also run it with const T&. - if (std::is_class()) TestHeterogeneous(table); -} - -TEST(Btree, HeterogeneousLookup) { - TestHeterogeneous(btree_set{"1", "3", "5"}); - TestHeterogeneous(btree_map{ - {"1", 1}, {"3", 3}, {"5", 5}}); - TestHeterogeneous( - btree_multiset{"1", "3", "5"}); - TestHeterogeneous(btree_multimap{ - {"1", 1}, {"3", 3}, {"5", 5}}); - - // Only maps have .at() - btree_map map{ - {"", -1}, {"1", 1}, {"3", 3}, {"5", 5}}; - EXPECT_EQ(1, map.at(1)); - EXPECT_EQ(3, map.at({"3"})); - EXPECT_EQ(-1, map.at({})); - const auto &cmap = map; - EXPECT_EQ(1, cmap.at(1)); - EXPECT_EQ(3, cmap.at({"3"})); - EXPECT_EQ(-1, cmap.at({})); -} - -TEST(Btree, NoHeterogeneousLookupWithoutAlias) { - using StringSet = absl::btree_set; - StringSet s; - ASSERT_TRUE(s.insert("hello").second); - ASSERT_TRUE(s.insert("world").second); - EXPECT_TRUE(s.end() == s.find("blah")); - EXPECT_TRUE(s.begin() == s.lower_bound("hello")); - EXPECT_EQ(1, s.count("world")); - EXPECT_TRUE(s.contains("hello")); - EXPECT_TRUE(s.contains("world")); - EXPECT_FALSE(s.contains("blah")); - - using StringMultiSet = - absl::btree_multiset; - StringMultiSet ms; - ms.insert("hello"); - ms.insert("world"); - ms.insert("world"); - EXPECT_TRUE(ms.end() == ms.find("blah")); - EXPECT_TRUE(ms.begin() == ms.lower_bound("hello")); - EXPECT_EQ(2, ms.count("world")); - EXPECT_TRUE(ms.contains("hello")); - EXPECT_TRUE(ms.contains("world")); - EXPECT_FALSE(ms.contains("blah")); -} - -TEST(Btree, DefaultTransparent) { - { - // `int` does not have a default transparent comparator. - // The input value is converted to key_type. - btree_set s = {1}; - double d = 1.1; - EXPECT_EQ(s.begin(), s.find(d)); - EXPECT_TRUE(s.contains(d)); - } - - { - // `std::string` has heterogeneous support. - btree_set s = {"A"}; - EXPECT_EQ(s.begin(), s.find(absl::string_view("A"))); - EXPECT_TRUE(s.contains(absl::string_view("A"))); - } -} - -class StringLike { - public: - StringLike() = default; - - StringLike(const char *s) : s_(s) { // NOLINT - ++constructor_calls_; - } - - bool operator<(const StringLike &a) const { return s_ < a.s_; } - - static void clear_constructor_call_count() { constructor_calls_ = 0; } - - static int constructor_calls() { return constructor_calls_; } - - private: - static int constructor_calls_; - std::string s_; -}; - -int StringLike::constructor_calls_ = 0; - -TEST(Btree, HeterogeneousLookupDoesntDegradePerformance) { - using StringSet = absl::btree_set; - StringSet s; - for (int i = 0; i < 100; ++i) { - ASSERT_TRUE(s.insert(absl::StrCat(i).c_str()).second); - } - StringLike::clear_constructor_call_count(); - s.find("50"); - ASSERT_EQ(1, StringLike::constructor_calls()); - - StringLike::clear_constructor_call_count(); - s.contains("50"); - ASSERT_EQ(1, StringLike::constructor_calls()); - - StringLike::clear_constructor_call_count(); - s.count("50"); - ASSERT_EQ(1, StringLike::constructor_calls()); - - StringLike::clear_constructor_call_count(); - s.lower_bound("50"); - ASSERT_EQ(1, StringLike::constructor_calls()); - - StringLike::clear_constructor_call_count(); - s.upper_bound("50"); - ASSERT_EQ(1, StringLike::constructor_calls()); - - StringLike::clear_constructor_call_count(); - s.equal_range("50"); - ASSERT_EQ(1, StringLike::constructor_calls()); - - StringLike::clear_constructor_call_count(); - s.erase("50"); - ASSERT_EQ(1, StringLike::constructor_calls()); -} - -// Verify that swapping btrees swaps the key comparison functors and that we can -// use non-default constructible comparators. -struct SubstringLess { - SubstringLess() = delete; - explicit SubstringLess(int length) : n(length) {} - bool operator()(const std::string &a, const std::string &b) const { - return absl::string_view(a).substr(0, n) < - absl::string_view(b).substr(0, n); - } - int n; -}; - -TEST(Btree, SwapKeyCompare) { - using SubstringSet = absl::btree_set; - SubstringSet s1(SubstringLess(1), SubstringSet::allocator_type()); - SubstringSet s2(SubstringLess(2), SubstringSet::allocator_type()); - - ASSERT_TRUE(s1.insert("a").second); - ASSERT_FALSE(s1.insert("aa").second); - - ASSERT_TRUE(s2.insert("a").second); - ASSERT_TRUE(s2.insert("aa").second); - ASSERT_FALSE(s2.insert("aaa").second); - - swap(s1, s2); - - ASSERT_TRUE(s1.insert("b").second); - ASSERT_TRUE(s1.insert("bb").second); - ASSERT_FALSE(s1.insert("bbb").second); - - ASSERT_TRUE(s2.insert("b").second); - ASSERT_FALSE(s2.insert("bb").second); -} - -TEST(Btree, UpperBoundRegression) { - // Regress a bug where upper_bound would default-construct a new key_compare - // instead of copying the existing one. - using SubstringSet = absl::btree_set; - SubstringSet my_set(SubstringLess(3)); - my_set.insert("aab"); - my_set.insert("abb"); - // We call upper_bound("aaa"). If this correctly uses the length 3 - // comparator, aaa < aab < abb, so we should get aab as the result. - // If it instead uses the default-constructed length 2 comparator, - // aa == aa < ab, so we'll get abb as our result. - SubstringSet::iterator it = my_set.upper_bound("aaa"); - ASSERT_TRUE(it != my_set.end()); - EXPECT_EQ("aab", *it); -} - -TEST(Btree, Comparison) { - const int kSetSize = 1201; - absl::btree_set my_set; - for (int i = 0; i < kSetSize; ++i) { - my_set.insert(i); - } - absl::btree_set my_set_copy(my_set); - EXPECT_TRUE(my_set_copy == my_set); - EXPECT_TRUE(my_set == my_set_copy); - EXPECT_FALSE(my_set_copy != my_set); - EXPECT_FALSE(my_set != my_set_copy); - - my_set.insert(kSetSize); - EXPECT_FALSE(my_set_copy == my_set); - EXPECT_FALSE(my_set == my_set_copy); - EXPECT_TRUE(my_set_copy != my_set); - EXPECT_TRUE(my_set != my_set_copy); - - my_set.erase(kSetSize - 1); - EXPECT_FALSE(my_set_copy == my_set); - EXPECT_FALSE(my_set == my_set_copy); - EXPECT_TRUE(my_set_copy != my_set); - EXPECT_TRUE(my_set != my_set_copy); - - absl::btree_map my_map; - for (int i = 0; i < kSetSize; ++i) { - my_map[std::string(i, 'a')] = i; - } - absl::btree_map my_map_copy(my_map); - EXPECT_TRUE(my_map_copy == my_map); - EXPECT_TRUE(my_map == my_map_copy); - EXPECT_FALSE(my_map_copy != my_map); - EXPECT_FALSE(my_map != my_map_copy); - - ++my_map_copy[std::string(7, 'a')]; - EXPECT_FALSE(my_map_copy == my_map); - EXPECT_FALSE(my_map == my_map_copy); - EXPECT_TRUE(my_map_copy != my_map); - EXPECT_TRUE(my_map != my_map_copy); - - my_map_copy = my_map; - my_map["hello"] = kSetSize; - EXPECT_FALSE(my_map_copy == my_map); - EXPECT_FALSE(my_map == my_map_copy); - EXPECT_TRUE(my_map_copy != my_map); - EXPECT_TRUE(my_map != my_map_copy); - - my_map.erase(std::string(kSetSize - 1, 'a')); - EXPECT_FALSE(my_map_copy == my_map); - EXPECT_FALSE(my_map == my_map_copy); - EXPECT_TRUE(my_map_copy != my_map); - EXPECT_TRUE(my_map != my_map_copy); -} - -TEST(Btree, RangeCtorSanity) { - std::vector ivec; - ivec.push_back(1); - std::map imap; - imap.insert(std::make_pair(1, 2)); - absl::btree_multiset tmset(ivec.begin(), ivec.end()); - absl::btree_multimap tmmap(imap.begin(), imap.end()); - absl::btree_set tset(ivec.begin(), ivec.end()); - absl::btree_map tmap(imap.begin(), imap.end()); - EXPECT_EQ(1, tmset.size()); - EXPECT_EQ(1, tmmap.size()); - EXPECT_EQ(1, tset.size()); - EXPECT_EQ(1, tmap.size()); -} - -} // namespace - -class BtreeNodePeer { - public: - // Yields the size of a leaf node with a specific number of values. - template - constexpr static size_t GetTargetNodeSize(size_t target_values_per_node) { - return btree_node< - set_params, std::allocator, - /*TargetNodeSize=*/256, // This parameter isn't used here. - /*Multi=*/false>>::SizeWithNSlots(target_values_per_node); - } - - // Yields the number of slots in a (non-root) leaf node for this btree. - template - constexpr static size_t GetNumSlotsPerNode() { - return btree_node::kNodeSlots; - } - - template - constexpr static size_t GetMaxFieldType() { - return std::numeric_limits< - typename btree_node::field_type>::max(); - } - - template - constexpr static bool UsesLinearNodeSearch() { - return btree_node::use_linear_search::value; - } - - template - constexpr static bool UsesGenerations() { - return Btree::params_type::kEnableGenerations; - } -}; - -namespace { - -class BtreeMapTest : public ::testing::Test { - public: - struct Key {}; - struct Cmp { - template - bool operator()(T, T) const { - return false; - } - }; - - struct KeyLin { - using absl_btree_prefer_linear_node_search = std::true_type; - }; - struct CmpLin : Cmp { - using absl_btree_prefer_linear_node_search = std::true_type; - }; - - struct KeyBin { - using absl_btree_prefer_linear_node_search = std::false_type; - }; - struct CmpBin : Cmp { - using absl_btree_prefer_linear_node_search = std::false_type; - }; - - template - static bool IsLinear() { - return BtreeNodePeer::UsesLinearNodeSearch>(); - } -}; - -TEST_F(BtreeMapTest, TestLinearSearchPreferredForKeyLinearViaAlias) { - // Test requesting linear search by directly exporting an alias. - EXPECT_FALSE((IsLinear())); - EXPECT_TRUE((IsLinear())); - EXPECT_TRUE((IsLinear())); - EXPECT_TRUE((IsLinear())); -} - -TEST_F(BtreeMapTest, LinearChoiceTree) { - // Cmp has precedence, and is forcing binary - EXPECT_FALSE((IsLinear())); - EXPECT_FALSE((IsLinear())); - EXPECT_FALSE((IsLinear())); - EXPECT_FALSE((IsLinear())); - EXPECT_FALSE((IsLinear())); - // Cmp has precedence, and is forcing linear - EXPECT_TRUE((IsLinear())); - EXPECT_TRUE((IsLinear())); - EXPECT_TRUE((IsLinear())); - EXPECT_TRUE((IsLinear())); - EXPECT_TRUE((IsLinear())); - // Cmp has no preference, Key determines linear vs binary. - EXPECT_FALSE((IsLinear())); - EXPECT_TRUE((IsLinear())); - EXPECT_FALSE((IsLinear())); - // arithmetic key w/ std::less or std::greater: linear - EXPECT_TRUE((IsLinear>())); - EXPECT_TRUE((IsLinear>())); - // arithmetic key w/ custom compare: binary - EXPECT_FALSE((IsLinear())); - // non-arithmetic key: binary - EXPECT_FALSE((IsLinear>())); -} - -TEST(Btree, BtreeMapCanHoldMoveOnlyTypes) { - absl::btree_map> m; - - std::unique_ptr &v = m["A"]; - EXPECT_TRUE(v == nullptr); - v = absl::make_unique("X"); - - auto iter = m.find("A"); - EXPECT_EQ("X", *iter->second); -} - -TEST(Btree, InitializerListConstructor) { - absl::btree_set set({"a", "b"}); - EXPECT_EQ(set.count("a"), 1); - EXPECT_EQ(set.count("b"), 1); - - absl::btree_multiset mset({1, 1, 4}); - EXPECT_EQ(mset.count(1), 2); - EXPECT_EQ(mset.count(4), 1); - - absl::btree_map map({{1, 5}, {2, 10}}); - EXPECT_EQ(map[1], 5); - EXPECT_EQ(map[2], 10); - - absl::btree_multimap mmap({{1, 5}, {1, 10}}); - auto range = mmap.equal_range(1); - auto it = range.first; - ASSERT_NE(it, range.second); - EXPECT_EQ(it->second, 5); - ASSERT_NE(++it, range.second); - EXPECT_EQ(it->second, 10); - EXPECT_EQ(++it, range.second); -} - -TEST(Btree, InitializerListInsert) { - absl::btree_set set; - set.insert({"a", "b"}); - EXPECT_EQ(set.count("a"), 1); - EXPECT_EQ(set.count("b"), 1); - - absl::btree_multiset mset; - mset.insert({1, 1, 4}); - EXPECT_EQ(mset.count(1), 2); - EXPECT_EQ(mset.count(4), 1); - - absl::btree_map map; - map.insert({{1, 5}, {2, 10}}); - // Test that inserting one element using an initializer list also works. - map.insert({3, 15}); - EXPECT_EQ(map[1], 5); - EXPECT_EQ(map[2], 10); - EXPECT_EQ(map[3], 15); - - absl::btree_multimap mmap; - mmap.insert({{1, 5}, {1, 10}}); - auto range = mmap.equal_range(1); - auto it = range.first; - ASSERT_NE(it, range.second); - EXPECT_EQ(it->second, 5); - ASSERT_NE(++it, range.second); - EXPECT_EQ(it->second, 10); - EXPECT_EQ(++it, range.second); -} - -template -void AssertKeyCompareStringAdapted() { - using Adapted = typename key_compare_adapter::type; - static_assert( - std::is_same::value || - std::is_same::value, - "key_compare_adapter should have string-adapted this comparator."); -} -template -void AssertKeyCompareNotStringAdapted() { - using Adapted = typename key_compare_adapter::type; - static_assert( - !std::is_same::value && - !std::is_same::value, - "key_compare_adapter shouldn't have string-adapted this comparator."); -} - -TEST(Btree, KeyCompareAdapter) { - AssertKeyCompareStringAdapted, std::string>(); - AssertKeyCompareStringAdapted, std::string>(); - AssertKeyCompareStringAdapted, - absl::string_view>(); - AssertKeyCompareStringAdapted, - absl::string_view>(); - AssertKeyCompareStringAdapted, absl::Cord>(); - AssertKeyCompareStringAdapted, absl::Cord>(); - AssertKeyCompareNotStringAdapted, int>(); - AssertKeyCompareNotStringAdapted, int>(); -} - -TEST(Btree, RValueInsert) { - InstanceTracker tracker; - - absl::btree_set set; - set.insert(MovableOnlyInstance(1)); - set.insert(MovableOnlyInstance(3)); - MovableOnlyInstance two(2); - set.insert(set.find(MovableOnlyInstance(3)), std::move(two)); - auto it = set.find(MovableOnlyInstance(2)); - ASSERT_NE(it, set.end()); - ASSERT_NE(++it, set.end()); - EXPECT_EQ(it->value(), 3); - - absl::btree_multiset mset; - MovableOnlyInstance zero(0); - MovableOnlyInstance zero2(0); - mset.insert(std::move(zero)); - mset.insert(mset.find(MovableOnlyInstance(0)), std::move(zero2)); - EXPECT_EQ(mset.count(MovableOnlyInstance(0)), 2); - - absl::btree_map map; - std::pair p1 = {1, MovableOnlyInstance(5)}; - std::pair p2 = {2, MovableOnlyInstance(10)}; - std::pair p3 = {3, MovableOnlyInstance(15)}; - map.insert(std::move(p1)); - map.insert(std::move(p3)); - map.insert(map.find(3), std::move(p2)); - ASSERT_NE(map.find(2), map.end()); - EXPECT_EQ(map.find(2)->second.value(), 10); - - absl::btree_multimap mmap; - std::pair p4 = {1, MovableOnlyInstance(5)}; - std::pair p5 = {1, MovableOnlyInstance(10)}; - mmap.insert(std::move(p4)); - mmap.insert(mmap.find(1), std::move(p5)); - auto range = mmap.equal_range(1); - auto it1 = range.first; - ASSERT_NE(it1, range.second); - EXPECT_EQ(it1->second.value(), 10); - ASSERT_NE(++it1, range.second); - EXPECT_EQ(it1->second.value(), 5); - EXPECT_EQ(++it1, range.second); - - EXPECT_EQ(tracker.copies(), 0); - EXPECT_EQ(tracker.swaps(), 0); -} - -template -struct CheckedCompareOptedOutCmp : Cmp, BtreeTestOnlyCheckedCompareOptOutBase { - using Cmp::Cmp; - CheckedCompareOptedOutCmp() {} - CheckedCompareOptedOutCmp(Cmp cmp) : Cmp(std::move(cmp)) {} // NOLINT -}; - -// A btree set with a specific number of values per node. Opt out of -// checked_compare so that we can expect exact numbers of comparisons. -template > -class SizedBtreeSet - : public btree_set_container, std::allocator, - BtreeNodePeer::GetTargetNodeSize(TargetValuesPerNode), - /*Multi=*/false>>> { - using Base = typename SizedBtreeSet::btree_set_container; - - public: - SizedBtreeSet() {} - using Base::Base; -}; - -template -void ExpectOperationCounts(const int expected_moves, - const int expected_comparisons, - const std::vector &values, - InstanceTracker *tracker, Set *set) { - for (const int v : values) set->insert(MovableOnlyInstance(v)); - set->clear(); - EXPECT_EQ(tracker->moves(), expected_moves); - EXPECT_EQ(tracker->comparisons(), expected_comparisons); - EXPECT_EQ(tracker->copies(), 0); - EXPECT_EQ(tracker->swaps(), 0); - tracker->ResetCopiesMovesSwaps(); -} - -// Note: when the values in this test change, it is expected to have an impact -// on performance. -TEST(Btree, MovesComparisonsCopiesSwapsTracking) { - InstanceTracker tracker; - // Note: this is minimum number of values per node. - SizedBtreeSet set4; - // Note: this is the default number of values per node for a set of int32s - // (with 64-bit pointers). - SizedBtreeSet set61; - SizedBtreeSet set100; - - // Don't depend on flags for random values because then the expectations will - // fail if the flags change. - std::vector values = - GenerateValuesWithSeed(10000, 1 << 22, /*seed=*/23); - - EXPECT_EQ(BtreeNodePeer::GetNumSlotsPerNode(), 4); - EXPECT_EQ(BtreeNodePeer::GetNumSlotsPerNode(), 61); - EXPECT_EQ(BtreeNodePeer::GetNumSlotsPerNode(), 100); - if (sizeof(void *) == 8) { - EXPECT_EQ( - BtreeNodePeer::GetNumSlotsPerNode>(), - // When we have generations, there is one fewer slot. - BtreeNodePeer::UsesGenerations>() ? 60 : 61); - } - - // Test key insertion/deletion in random order. - ExpectOperationCounts(56540, 134212, values, &tracker, &set4); - ExpectOperationCounts(386718, 129807, values, &tracker, &set61); - ExpectOperationCounts(586761, 130310, values, &tracker, &set100); - - // Test key insertion/deletion in sorted order. - std::sort(values.begin(), values.end()); - ExpectOperationCounts(24972, 85563, values, &tracker, &set4); - ExpectOperationCounts(20208, 87757, values, &tracker, &set61); - ExpectOperationCounts(20124, 96583, values, &tracker, &set100); - - // Test key insertion/deletion in reverse sorted order. - std::reverse(values.begin(), values.end()); - ExpectOperationCounts(54949, 127531, values, &tracker, &set4); - ExpectOperationCounts(338813, 118266, values, &tracker, &set61); - ExpectOperationCounts(534529, 125279, values, &tracker, &set100); -} - -struct MovableOnlyInstanceThreeWayCompare { - absl::weak_ordering operator()(const MovableOnlyInstance &a, - const MovableOnlyInstance &b) const { - return a.compare(b); - } -}; - -// Note: when the values in this test change, it is expected to have an impact -// on performance. -TEST(Btree, MovesComparisonsCopiesSwapsTrackingThreeWayCompare) { - InstanceTracker tracker; - // Note: this is minimum number of values per node. - SizedBtreeSet - set4; - // Note: this is the default number of values per node for a set of int32s - // (with 64-bit pointers). - SizedBtreeSet - set61; - SizedBtreeSet - set100; - - // Don't depend on flags for random values because then the expectations will - // fail if the flags change. - std::vector values = - GenerateValuesWithSeed(10000, 1 << 22, /*seed=*/23); - - EXPECT_EQ(BtreeNodePeer::GetNumSlotsPerNode(), 4); - EXPECT_EQ(BtreeNodePeer::GetNumSlotsPerNode(), 61); - EXPECT_EQ(BtreeNodePeer::GetNumSlotsPerNode(), 100); - if (sizeof(void *) == 8) { - EXPECT_EQ( - BtreeNodePeer::GetNumSlotsPerNode>(), - // When we have generations, there is one fewer slot. - BtreeNodePeer::UsesGenerations>() ? 60 : 61); - } - - // Test key insertion/deletion in random order. - ExpectOperationCounts(56540, 124221, values, &tracker, &set4); - ExpectOperationCounts(386718, 119816, values, &tracker, &set61); - ExpectOperationCounts(586761, 120319, values, &tracker, &set100); - - // Test key insertion/deletion in sorted order. - std::sort(values.begin(), values.end()); - ExpectOperationCounts(24972, 85563, values, &tracker, &set4); - ExpectOperationCounts(20208, 87757, values, &tracker, &set61); - ExpectOperationCounts(20124, 96583, values, &tracker, &set100); - - // Test key insertion/deletion in reverse sorted order. - std::reverse(values.begin(), values.end()); - ExpectOperationCounts(54949, 117532, values, &tracker, &set4); - ExpectOperationCounts(338813, 108267, values, &tracker, &set61); - ExpectOperationCounts(534529, 115280, values, &tracker, &set100); -} - -struct NoDefaultCtor { - int num; - explicit NoDefaultCtor(int i) : num(i) {} - - friend bool operator<(const NoDefaultCtor &a, const NoDefaultCtor &b) { - return a.num < b.num; - } -}; - -TEST(Btree, BtreeMapCanHoldNoDefaultCtorTypes) { - absl::btree_map m; - - for (int i = 1; i <= 99; ++i) { - SCOPED_TRACE(i); - EXPECT_TRUE(m.emplace(NoDefaultCtor(i), NoDefaultCtor(100 - i)).second); - } - EXPECT_FALSE(m.emplace(NoDefaultCtor(78), NoDefaultCtor(0)).second); - - auto iter99 = m.find(NoDefaultCtor(99)); - ASSERT_NE(iter99, m.end()); - EXPECT_EQ(iter99->second.num, 1); - - auto iter1 = m.find(NoDefaultCtor(1)); - ASSERT_NE(iter1, m.end()); - EXPECT_EQ(iter1->second.num, 99); - - auto iter50 = m.find(NoDefaultCtor(50)); - ASSERT_NE(iter50, m.end()); - EXPECT_EQ(iter50->second.num, 50); - - auto iter25 = m.find(NoDefaultCtor(25)); - ASSERT_NE(iter25, m.end()); - EXPECT_EQ(iter25->second.num, 75); -} - -TEST(Btree, BtreeMultimapCanHoldNoDefaultCtorTypes) { - absl::btree_multimap m; - - for (int i = 1; i <= 99; ++i) { - SCOPED_TRACE(i); - m.emplace(NoDefaultCtor(i), NoDefaultCtor(100 - i)); - } - - auto iter99 = m.find(NoDefaultCtor(99)); - ASSERT_NE(iter99, m.end()); - EXPECT_EQ(iter99->second.num, 1); - - auto iter1 = m.find(NoDefaultCtor(1)); - ASSERT_NE(iter1, m.end()); - EXPECT_EQ(iter1->second.num, 99); - - auto iter50 = m.find(NoDefaultCtor(50)); - ASSERT_NE(iter50, m.end()); - EXPECT_EQ(iter50->second.num, 50); - - auto iter25 = m.find(NoDefaultCtor(25)); - ASSERT_NE(iter25, m.end()); - EXPECT_EQ(iter25->second.num, 75); -} - -TEST(Btree, MapAt) { - absl::btree_map map = {{1, 2}, {2, 4}}; - EXPECT_EQ(map.at(1), 2); - EXPECT_EQ(map.at(2), 4); - map.at(2) = 8; - const absl::btree_map &const_map = map; - EXPECT_EQ(const_map.at(1), 2); - EXPECT_EQ(const_map.at(2), 8); -#ifdef ABSL_HAVE_EXCEPTIONS - EXPECT_THROW(map.at(3), std::out_of_range); -#else - EXPECT_DEATH_IF_SUPPORTED(map.at(3), "absl::btree_map::at"); -#endif -} - -TEST(Btree, BtreeMultisetEmplace) { - const int value_to_insert = 123456; - absl::btree_multiset s; - auto iter = s.emplace(value_to_insert); - ASSERT_NE(iter, s.end()); - EXPECT_EQ(*iter, value_to_insert); - iter = s.emplace(value_to_insert); - ASSERT_NE(iter, s.end()); - EXPECT_EQ(*iter, value_to_insert); - auto result = s.equal_range(value_to_insert); - EXPECT_EQ(std::distance(result.first, result.second), 2); -} - -TEST(Btree, BtreeMultisetEmplaceHint) { - const int value_to_insert = 123456; - absl::btree_multiset s; - auto iter = s.emplace(value_to_insert); - ASSERT_NE(iter, s.end()); - EXPECT_EQ(*iter, value_to_insert); - iter = s.emplace_hint(iter, value_to_insert); - // The new element should be before the previously inserted one. - EXPECT_EQ(iter, s.lower_bound(value_to_insert)); - ASSERT_NE(iter, s.end()); - EXPECT_EQ(*iter, value_to_insert); -} - -TEST(Btree, BtreeMultimapEmplace) { - const int key_to_insert = 123456; - const char value0[] = "a"; - absl::btree_multimap m; - auto iter = m.emplace(key_to_insert, value0); - ASSERT_NE(iter, m.end()); - EXPECT_EQ(iter->first, key_to_insert); - EXPECT_EQ(iter->second, value0); - const char value1[] = "b"; - iter = m.emplace(key_to_insert, value1); - ASSERT_NE(iter, m.end()); - EXPECT_EQ(iter->first, key_to_insert); - EXPECT_EQ(iter->second, value1); - auto result = m.equal_range(key_to_insert); - EXPECT_EQ(std::distance(result.first, result.second), 2); -} - -TEST(Btree, BtreeMultimapEmplaceHint) { - const int key_to_insert = 123456; - const char value0[] = "a"; - absl::btree_multimap m; - auto iter = m.emplace(key_to_insert, value0); - ASSERT_NE(iter, m.end()); - EXPECT_EQ(iter->first, key_to_insert); - EXPECT_EQ(iter->second, value0); - const char value1[] = "b"; - iter = m.emplace_hint(iter, key_to_insert, value1); - // The new element should be before the previously inserted one. - EXPECT_EQ(iter, m.lower_bound(key_to_insert)); - ASSERT_NE(iter, m.end()); - EXPECT_EQ(iter->first, key_to_insert); - EXPECT_EQ(iter->second, value1); -} - -TEST(Btree, ConstIteratorAccessors) { - absl::btree_set set; - for (int i = 0; i < 100; ++i) { - set.insert(i); - } - - auto it = set.cbegin(); - auto r_it = set.crbegin(); - for (int i = 0; i < 100; ++i, ++it, ++r_it) { - ASSERT_EQ(*it, i); - ASSERT_EQ(*r_it, 99 - i); - } - EXPECT_EQ(it, set.cend()); - EXPECT_EQ(r_it, set.crend()); -} - -TEST(Btree, StrSplitCompatible) { - const absl::btree_set split_set = absl::StrSplit("a,b,c", ','); - const absl::btree_set expected_set = {"a", "b", "c"}; - - EXPECT_EQ(split_set, expected_set); -} - -TEST(Btree, KeyComp) { - absl::btree_set s; - EXPECT_TRUE(s.key_comp()(1, 2)); - EXPECT_FALSE(s.key_comp()(2, 2)); - EXPECT_FALSE(s.key_comp()(2, 1)); - - absl::btree_map m1; - EXPECT_TRUE(m1.key_comp()(1, 2)); - EXPECT_FALSE(m1.key_comp()(2, 2)); - EXPECT_FALSE(m1.key_comp()(2, 1)); - - // Even though we internally adapt the comparator of `m2` to be three-way and - // heterogeneous, the comparator we expose through key_comp() is the original - // unadapted comparator. - absl::btree_map m2; - EXPECT_TRUE(m2.key_comp()("a", "b")); - EXPECT_FALSE(m2.key_comp()("b", "b")); - EXPECT_FALSE(m2.key_comp()("b", "a")); -} - -TEST(Btree, ValueComp) { - absl::btree_set s; - EXPECT_TRUE(s.value_comp()(1, 2)); - EXPECT_FALSE(s.value_comp()(2, 2)); - EXPECT_FALSE(s.value_comp()(2, 1)); - - absl::btree_map m1; - EXPECT_TRUE(m1.value_comp()(std::make_pair(1, 0), std::make_pair(2, 0))); - EXPECT_FALSE(m1.value_comp()(std::make_pair(2, 0), std::make_pair(2, 0))); - EXPECT_FALSE(m1.value_comp()(std::make_pair(2, 0), std::make_pair(1, 0))); - - // Even though we internally adapt the comparator of `m2` to be three-way and - // heterogeneous, the comparator we expose through value_comp() is based on - // the original unadapted comparator. - absl::btree_map m2; - EXPECT_TRUE(m2.value_comp()(std::make_pair("a", 0), std::make_pair("b", 0))); - EXPECT_FALSE(m2.value_comp()(std::make_pair("b", 0), std::make_pair("b", 0))); - EXPECT_FALSE(m2.value_comp()(std::make_pair("b", 0), std::make_pair("a", 0))); -} - -// Test that we have the protected members from the std::map::value_compare API. -// See https://en.cppreference.com/w/cpp/container/map/value_compare. -TEST(Btree, MapValueCompProtected) { - struct key_compare { - bool operator()(int l, int r) const { return l < r; } - int id; - }; - using value_compare = absl::btree_map::value_compare; - struct value_comp_child : public value_compare { - explicit value_comp_child(key_compare kc) : value_compare(kc) {} - int GetId() const { return comp.id; } - }; - value_comp_child c(key_compare{10}); - EXPECT_EQ(c.GetId(), 10); -} - -TEST(Btree, DefaultConstruction) { - absl::btree_set s; - absl::btree_map m; - absl::btree_multiset ms; - absl::btree_multimap mm; - - EXPECT_TRUE(s.empty()); - EXPECT_TRUE(m.empty()); - EXPECT_TRUE(ms.empty()); - EXPECT_TRUE(mm.empty()); -} - -TEST(Btree, SwissTableHashable) { - static constexpr int kValues = 10000; - std::vector values(kValues); - std::iota(values.begin(), values.end(), 0); - std::vector> map_values; - for (int v : values) map_values.emplace_back(v, -v); - - using set = absl::btree_set; - EXPECT_TRUE(absl::VerifyTypeImplementsAbslHashCorrectly({ - set{}, - set{1}, - set{2}, - set{1, 2}, - set{2, 1}, - set(values.begin(), values.end()), - set(values.rbegin(), values.rend()), - })); - - using mset = absl::btree_multiset; - EXPECT_TRUE(absl::VerifyTypeImplementsAbslHashCorrectly({ - mset{}, - mset{1}, - mset{1, 1}, - mset{2}, - mset{2, 2}, - mset{1, 2}, - mset{1, 1, 2}, - mset{1, 2, 2}, - mset{1, 1, 2, 2}, - mset(values.begin(), values.end()), - mset(values.rbegin(), values.rend()), - })); - - using map = absl::btree_map; - EXPECT_TRUE(absl::VerifyTypeImplementsAbslHashCorrectly({ - map{}, - map{{1, 0}}, - map{{1, 1}}, - map{{2, 0}}, - map{{2, 2}}, - map{{1, 0}, {2, 1}}, - map(map_values.begin(), map_values.end()), - map(map_values.rbegin(), map_values.rend()), - })); - - using mmap = absl::btree_multimap; - EXPECT_TRUE(absl::VerifyTypeImplementsAbslHashCorrectly({ - mmap{}, - mmap{{1, 0}}, - mmap{{1, 1}}, - mmap{{1, 0}, {1, 1}}, - mmap{{1, 1}, {1, 0}}, - mmap{{2, 0}}, - mmap{{2, 2}}, - mmap{{1, 0}, {2, 1}}, - mmap(map_values.begin(), map_values.end()), - mmap(map_values.rbegin(), map_values.rend()), - })); -} - -TEST(Btree, ComparableSet) { - absl::btree_set s1 = {1, 2}; - absl::btree_set s2 = {2, 3}; - EXPECT_LT(s1, s2); - EXPECT_LE(s1, s2); - EXPECT_LE(s1, s1); - EXPECT_GT(s2, s1); - EXPECT_GE(s2, s1); - EXPECT_GE(s1, s1); -} - -TEST(Btree, ComparableSetsDifferentLength) { - absl::btree_set s1 = {1, 2}; - absl::btree_set s2 = {1, 2, 3}; - EXPECT_LT(s1, s2); - EXPECT_LE(s1, s2); - EXPECT_GT(s2, s1); - EXPECT_GE(s2, s1); -} - -TEST(Btree, ComparableMultiset) { - absl::btree_multiset s1 = {1, 2}; - absl::btree_multiset s2 = {2, 3}; - EXPECT_LT(s1, s2); - EXPECT_LE(s1, s2); - EXPECT_LE(s1, s1); - EXPECT_GT(s2, s1); - EXPECT_GE(s2, s1); - EXPECT_GE(s1, s1); -} - -TEST(Btree, ComparableMap) { - absl::btree_map s1 = {{1, 2}}; - absl::btree_map s2 = {{2, 3}}; - EXPECT_LT(s1, s2); - EXPECT_LE(s1, s2); - EXPECT_LE(s1, s1); - EXPECT_GT(s2, s1); - EXPECT_GE(s2, s1); - EXPECT_GE(s1, s1); -} - -TEST(Btree, ComparableMultimap) { - absl::btree_multimap s1 = {{1, 2}}; - absl::btree_multimap s2 = {{2, 3}}; - EXPECT_LT(s1, s2); - EXPECT_LE(s1, s2); - EXPECT_LE(s1, s1); - EXPECT_GT(s2, s1); - EXPECT_GE(s2, s1); - EXPECT_GE(s1, s1); -} - -TEST(Btree, ComparableSetWithCustomComparator) { - // As specified by - // http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3337.pdf section - // [container.requirements.general].12, ordering associative containers always - // uses default '<' operator - // - even if otherwise the container uses custom functor. - absl::btree_set> s1 = {1, 2}; - absl::btree_set> s2 = {2, 3}; - EXPECT_LT(s1, s2); - EXPECT_LE(s1, s2); - EXPECT_LE(s1, s1); - EXPECT_GT(s2, s1); - EXPECT_GE(s2, s1); - EXPECT_GE(s1, s1); -} - -TEST(Btree, EraseReturnsIterator) { - absl::btree_set set = {1, 2, 3, 4, 5}; - auto result_it = set.erase(set.begin(), set.find(3)); - EXPECT_EQ(result_it, set.find(3)); - result_it = set.erase(set.find(5)); - EXPECT_EQ(result_it, set.end()); -} - -TEST(Btree, ExtractAndInsertNodeHandleSet) { - absl::btree_set src1 = {1, 2, 3, 4, 5}; - auto nh = src1.extract(src1.find(3)); - EXPECT_THAT(src1, ElementsAre(1, 2, 4, 5)); - absl::btree_set other; - absl::btree_set::insert_return_type res = other.insert(std::move(nh)); - EXPECT_THAT(other, ElementsAre(3)); - EXPECT_EQ(res.position, other.find(3)); - EXPECT_TRUE(res.inserted); - EXPECT_TRUE(res.node.empty()); - - absl::btree_set src2 = {3, 4}; - nh = src2.extract(src2.find(3)); - EXPECT_THAT(src2, ElementsAre(4)); - res = other.insert(std::move(nh)); - EXPECT_THAT(other, ElementsAre(3)); - EXPECT_EQ(res.position, other.find(3)); - EXPECT_FALSE(res.inserted); - ASSERT_FALSE(res.node.empty()); - EXPECT_EQ(res.node.value(), 3); -} - -template -void TestExtractWithTrackingForSet() { - InstanceTracker tracker; - { - Set s; - // Add enough elements to make sure we test internal nodes too. - const size_t kSize = 1000; - while (s.size() < kSize) { - s.insert(MovableOnlyInstance(s.size())); - } - for (int i = 0; i < kSize; ++i) { - // Extract with key - auto nh = s.extract(MovableOnlyInstance(i)); - EXPECT_EQ(s.size(), kSize - 1); - EXPECT_EQ(nh.value().value(), i); - // Insert with node - s.insert(std::move(nh)); - EXPECT_EQ(s.size(), kSize); - - // Extract with iterator - auto it = s.find(MovableOnlyInstance(i)); - nh = s.extract(it); - EXPECT_EQ(s.size(), kSize - 1); - EXPECT_EQ(nh.value().value(), i); - // Insert with node and hint - s.insert(s.begin(), std::move(nh)); - EXPECT_EQ(s.size(), kSize); - } - } - EXPECT_EQ(0, tracker.instances()); -} - -template -void TestExtractWithTrackingForMap() { - InstanceTracker tracker; - { - Map m; - // Add enough elements to make sure we test internal nodes too. - const size_t kSize = 1000; - while (m.size() < kSize) { - m.insert( - {CopyableMovableInstance(m.size()), MovableOnlyInstance(m.size())}); - } - for (int i = 0; i < kSize; ++i) { - // Extract with key - auto nh = m.extract(CopyableMovableInstance(i)); - EXPECT_EQ(m.size(), kSize - 1); - EXPECT_EQ(nh.key().value(), i); - EXPECT_EQ(nh.mapped().value(), i); - // Insert with node - m.insert(std::move(nh)); - EXPECT_EQ(m.size(), kSize); - - // Extract with iterator - auto it = m.find(CopyableMovableInstance(i)); - nh = m.extract(it); - EXPECT_EQ(m.size(), kSize - 1); - EXPECT_EQ(nh.key().value(), i); - EXPECT_EQ(nh.mapped().value(), i); - // Insert with node and hint - m.insert(m.begin(), std::move(nh)); - EXPECT_EQ(m.size(), kSize); - } - } - EXPECT_EQ(0, tracker.instances()); -} - -TEST(Btree, ExtractTracking) { - TestExtractWithTrackingForSet>(); - TestExtractWithTrackingForSet>(); - TestExtractWithTrackingForMap< - absl::btree_map>(); - TestExtractWithTrackingForMap< - absl::btree_multimap>(); -} - -TEST(Btree, ExtractAndInsertNodeHandleMultiSet) { - absl::btree_multiset src1 = {1, 2, 3, 3, 4, 5}; - auto nh = src1.extract(src1.find(3)); - EXPECT_THAT(src1, ElementsAre(1, 2, 3, 4, 5)); - absl::btree_multiset other; - auto res = other.insert(std::move(nh)); - EXPECT_THAT(other, ElementsAre(3)); - EXPECT_EQ(res, other.find(3)); - - absl::btree_multiset src2 = {3, 4}; - nh = src2.extract(src2.find(3)); - EXPECT_THAT(src2, ElementsAre(4)); - res = other.insert(std::move(nh)); - EXPECT_THAT(other, ElementsAre(3, 3)); - EXPECT_EQ(res, ++other.find(3)); -} - -TEST(Btree, ExtractAndInsertNodeHandleMap) { - absl::btree_map src1 = {{1, 2}, {3, 4}, {5, 6}}; - auto nh = src1.extract(src1.find(3)); - EXPECT_THAT(src1, ElementsAre(Pair(1, 2), Pair(5, 6))); - absl::btree_map other; - absl::btree_map::insert_return_type res = - other.insert(std::move(nh)); - EXPECT_THAT(other, ElementsAre(Pair(3, 4))); - EXPECT_EQ(res.position, other.find(3)); - EXPECT_TRUE(res.inserted); - EXPECT_TRUE(res.node.empty()); - - absl::btree_map src2 = {{3, 6}}; - nh = src2.extract(src2.find(3)); - EXPECT_TRUE(src2.empty()); - res = other.insert(std::move(nh)); - EXPECT_THAT(other, ElementsAre(Pair(3, 4))); - EXPECT_EQ(res.position, other.find(3)); - EXPECT_FALSE(res.inserted); - ASSERT_FALSE(res.node.empty()); - EXPECT_EQ(res.node.key(), 3); - EXPECT_EQ(res.node.mapped(), 6); -} - -TEST(Btree, ExtractAndInsertNodeHandleMultiMap) { - absl::btree_multimap src1 = {{1, 2}, {3, 4}, {5, 6}}; - auto nh = src1.extract(src1.find(3)); - EXPECT_THAT(src1, ElementsAre(Pair(1, 2), Pair(5, 6))); - absl::btree_multimap other; - auto res = other.insert(std::move(nh)); - EXPECT_THAT(other, ElementsAre(Pair(3, 4))); - EXPECT_EQ(res, other.find(3)); - - absl::btree_multimap src2 = {{3, 6}}; - nh = src2.extract(src2.find(3)); - EXPECT_TRUE(src2.empty()); - res = other.insert(std::move(nh)); - EXPECT_THAT(other, ElementsAre(Pair(3, 4), Pair(3, 6))); - EXPECT_EQ(res, ++other.begin()); -} - -TEST(Btree, ExtractMultiMapEquivalentKeys) { - // Note: using string keys means a three-way comparator. - absl::btree_multimap map; - for (int i = 0; i < 100; ++i) { - for (int j = 0; j < 100; ++j) { - map.insert({absl::StrCat(i), j}); - } - } - - for (int i = 0; i < 100; ++i) { - const std::string key = absl::StrCat(i); - auto node_handle = map.extract(key); - EXPECT_EQ(node_handle.key(), key); - EXPECT_EQ(node_handle.mapped(), 0) << i; - } - - for (int i = 0; i < 100; ++i) { - const std::string key = absl::StrCat(i); - auto node_handle = map.extract(key); - EXPECT_EQ(node_handle.key(), key); - EXPECT_EQ(node_handle.mapped(), 1) << i; - } -} - -TEST(Btree, ExtractAndGetNextSet) { - absl::btree_set src = {1, 2, 3, 4, 5}; - auto it = src.find(3); - auto extracted_and_next = src.extract_and_get_next(it); - EXPECT_THAT(src, ElementsAre(1, 2, 4, 5)); - EXPECT_EQ(extracted_and_next.node.value(), 3); - EXPECT_EQ(*extracted_and_next.next, 4); -} - -TEST(Btree, ExtractAndGetNextMultiSet) { - absl::btree_multiset src = {1, 2, 3, 4, 5}; - auto it = src.find(3); - auto extracted_and_next = src.extract_and_get_next(it); - EXPECT_THAT(src, ElementsAre(1, 2, 4, 5)); - EXPECT_EQ(extracted_and_next.node.value(), 3); - EXPECT_EQ(*extracted_and_next.next, 4); -} - -TEST(Btree, ExtractAndGetNextMap) { - absl::btree_map src = {{1, 2}, {3, 4}, {5, 6}}; - auto it = src.find(3); - auto extracted_and_next = src.extract_and_get_next(it); - EXPECT_THAT(src, ElementsAre(Pair(1, 2), Pair(5, 6))); - EXPECT_EQ(extracted_and_next.node.key(), 3); - EXPECT_EQ(extracted_and_next.node.mapped(), 4); - EXPECT_THAT(*extracted_and_next.next, Pair(5, 6)); -} - -TEST(Btree, ExtractAndGetNextMultiMap) { - absl::btree_multimap src = {{1, 2}, {3, 4}, {5, 6}}; - auto it = src.find(3); - auto extracted_and_next = src.extract_and_get_next(it); - EXPECT_THAT(src, ElementsAre(Pair(1, 2), Pair(5, 6))); - EXPECT_EQ(extracted_and_next.node.key(), 3); - EXPECT_EQ(extracted_and_next.node.mapped(), 4); - EXPECT_THAT(*extracted_and_next.next, Pair(5, 6)); -} - -TEST(Btree, ExtractAndGetNextEndIter) { - absl::btree_set src = {1, 2, 3, 4, 5}; - auto it = src.find(5); - auto extracted_and_next = src.extract_and_get_next(it); - EXPECT_THAT(src, ElementsAre(1, 2, 3, 4)); - EXPECT_EQ(extracted_and_next.node.value(), 5); - EXPECT_EQ(extracted_and_next.next, src.end()); -} - -TEST(Btree, ExtractDoesntCauseExtraMoves) { -#ifdef _MSC_VER - GTEST_SKIP() << "This test fails on MSVC."; -#endif - - using Set = absl::btree_set; - std::array, 3> extracters = { - [](Set &s) { auto node = s.extract(s.begin()); }, - [](Set &s) { auto ret = s.extract_and_get_next(s.begin()); }, - [](Set &s) { auto node = s.extract(MovableOnlyInstance(0)); }}; - - InstanceTracker tracker; - for (int i = 0; i < 3; ++i) { - Set s; - s.insert(MovableOnlyInstance(0)); - tracker.ResetCopiesMovesSwaps(); - - extracters[i](s); - // We expect to see exactly 1 move: from the original slot into the - // extracted node. - EXPECT_EQ(tracker.copies(), 0) << i; - EXPECT_EQ(tracker.moves(), 1) << i; - EXPECT_EQ(tracker.swaps(), 0) << i; - } -} - -// For multisets, insert with hint also affects correctness because we need to -// insert immediately before the hint if possible. -struct InsertMultiHintData { - int key; - int not_key; - bool operator==(const InsertMultiHintData other) const { - return key == other.key && not_key == other.not_key; - } -}; - -struct InsertMultiHintDataKeyCompare { - using is_transparent = void; - bool operator()(const InsertMultiHintData a, - const InsertMultiHintData b) const { - return a.key < b.key; - } - bool operator()(const int a, const InsertMultiHintData b) const { - return a < b.key; - } - bool operator()(const InsertMultiHintData a, const int b) const { - return a.key < b; - } -}; - -TEST(Btree, InsertHintNodeHandle) { - // For unique sets, insert with hint is just a performance optimization. - // Test that insert works correctly when the hint is right or wrong. - { - absl::btree_set src = {1, 2, 3, 4, 5}; - auto nh = src.extract(src.find(3)); - EXPECT_THAT(src, ElementsAre(1, 2, 4, 5)); - absl::btree_set other = {0, 100}; - // Test a correct hint. - auto it = other.insert(other.lower_bound(3), std::move(nh)); - EXPECT_THAT(other, ElementsAre(0, 3, 100)); - EXPECT_EQ(it, other.find(3)); - - nh = src.extract(src.find(5)); - // Test an incorrect hint. - it = other.insert(other.end(), std::move(nh)); - EXPECT_THAT(other, ElementsAre(0, 3, 5, 100)); - EXPECT_EQ(it, other.find(5)); - } - - absl::btree_multiset src = - {{1, 2}, {3, 4}, {3, 5}}; - auto nh = src.extract(src.lower_bound(3)); - EXPECT_EQ(nh.value(), (InsertMultiHintData{3, 4})); - absl::btree_multiset - other = {{3, 1}, {3, 2}, {3, 3}}; - auto it = other.insert(--other.end(), std::move(nh)); - EXPECT_THAT( - other, ElementsAre(InsertMultiHintData{3, 1}, InsertMultiHintData{3, 2}, - InsertMultiHintData{3, 4}, InsertMultiHintData{3, 3})); - EXPECT_EQ(it, --(--other.end())); - - nh = src.extract(src.find(3)); - EXPECT_EQ(nh.value(), (InsertMultiHintData{3, 5})); - it = other.insert(other.begin(), std::move(nh)); - EXPECT_THAT(other, - ElementsAre(InsertMultiHintData{3, 5}, InsertMultiHintData{3, 1}, - InsertMultiHintData{3, 2}, InsertMultiHintData{3, 4}, - InsertMultiHintData{3, 3})); - EXPECT_EQ(it, other.begin()); -} - -struct IntCompareToCmp { - absl::weak_ordering operator()(int a, int b) const { - if (a < b) return absl::weak_ordering::less; - if (a > b) return absl::weak_ordering::greater; - return absl::weak_ordering::equivalent; - } -}; - -TEST(Btree, MergeIntoUniqueContainers) { - absl::btree_set src1 = {1, 2, 3}; - absl::btree_multiset src2 = {3, 4, 4, 5}; - absl::btree_set dst; - - dst.merge(src1); - EXPECT_TRUE(src1.empty()); - EXPECT_THAT(dst, ElementsAre(1, 2, 3)); - dst.merge(src2); - EXPECT_THAT(src2, ElementsAre(3, 4)); - EXPECT_THAT(dst, ElementsAre(1, 2, 3, 4, 5)); -} - -TEST(Btree, MergeIntoUniqueContainersWithCompareTo) { - absl::btree_set src1 = {1, 2, 3}; - absl::btree_multiset src2 = {3, 4, 4, 5}; - absl::btree_set dst; - - dst.merge(src1); - EXPECT_TRUE(src1.empty()); - EXPECT_THAT(dst, ElementsAre(1, 2, 3)); - dst.merge(src2); - EXPECT_THAT(src2, ElementsAre(3, 4)); - EXPECT_THAT(dst, ElementsAre(1, 2, 3, 4, 5)); -} - -TEST(Btree, MergeIntoMultiContainers) { - absl::btree_set src1 = {1, 2, 3}; - absl::btree_multiset src2 = {3, 4, 4, 5}; - absl::btree_multiset dst; - - dst.merge(src1); - EXPECT_TRUE(src1.empty()); - EXPECT_THAT(dst, ElementsAre(1, 2, 3)); - dst.merge(src2); - EXPECT_TRUE(src2.empty()); - EXPECT_THAT(dst, ElementsAre(1, 2, 3, 3, 4, 4, 5)); -} - -TEST(Btree, MergeIntoMultiContainersWithCompareTo) { - absl::btree_set src1 = {1, 2, 3}; - absl::btree_multiset src2 = {3, 4, 4, 5}; - absl::btree_multiset dst; - - dst.merge(src1); - EXPECT_TRUE(src1.empty()); - EXPECT_THAT(dst, ElementsAre(1, 2, 3)); - dst.merge(src2); - EXPECT_TRUE(src2.empty()); - EXPECT_THAT(dst, ElementsAre(1, 2, 3, 3, 4, 4, 5)); -} - -TEST(Btree, MergeIntoMultiMapsWithDifferentComparators) { - absl::btree_map src1 = {{1, 1}, {2, 2}, {3, 3}}; - absl::btree_multimap> src2 = { - {5, 5}, {4, 1}, {4, 4}, {3, 2}}; - absl::btree_multimap dst; - - dst.merge(src1); - EXPECT_TRUE(src1.empty()); - EXPECT_THAT(dst, ElementsAre(Pair(1, 1), Pair(2, 2), Pair(3, 3))); - dst.merge(src2); - EXPECT_TRUE(src2.empty()); - EXPECT_THAT(dst, ElementsAre(Pair(1, 1), Pair(2, 2), Pair(3, 3), Pair(3, 2), - Pair(4, 1), Pair(4, 4), Pair(5, 5))); -} - -TEST(Btree, MergeIntoSetMovableOnly) { - absl::btree_set src; - src.insert(MovableOnlyInstance(1)); - absl::btree_multiset dst1; - dst1.insert(MovableOnlyInstance(2)); - absl::btree_set dst2; - - // Test merge into multiset. - dst1.merge(src); - - EXPECT_TRUE(src.empty()); - // ElementsAre/ElementsAreArray don't work with move-only types. - ASSERT_THAT(dst1, SizeIs(2)); - EXPECT_EQ(*dst1.begin(), MovableOnlyInstance(1)); - EXPECT_EQ(*std::next(dst1.begin()), MovableOnlyInstance(2)); - - // Test merge into set. - dst2.merge(dst1); - - EXPECT_TRUE(dst1.empty()); - ASSERT_THAT(dst2, SizeIs(2)); - EXPECT_EQ(*dst2.begin(), MovableOnlyInstance(1)); - EXPECT_EQ(*std::next(dst2.begin()), MovableOnlyInstance(2)); -} - -struct KeyCompareToWeakOrdering { - template - absl::weak_ordering operator()(const T &a, const T &b) const { - return a < b ? absl::weak_ordering::less - : a == b ? absl::weak_ordering::equivalent - : absl::weak_ordering::greater; - } -}; - -struct KeyCompareToStrongOrdering { - template - absl::strong_ordering operator()(const T &a, const T &b) const { - return a < b ? absl::strong_ordering::less - : a == b ? absl::strong_ordering::equal - : absl::strong_ordering::greater; - } -}; - -TEST(Btree, UserProvidedKeyCompareToComparators) { - absl::btree_set weak_set = {1, 2, 3}; - EXPECT_TRUE(weak_set.contains(2)); - EXPECT_FALSE(weak_set.contains(4)); - - absl::btree_set strong_set = {1, 2, 3}; - EXPECT_TRUE(strong_set.contains(2)); - EXPECT_FALSE(strong_set.contains(4)); -} - -TEST(Btree, TryEmplaceBasicTest) { - absl::btree_map m; - - // Should construct a string from the literal. - m.try_emplace(1, "one"); - EXPECT_EQ(1, m.size()); - - // Try other string constructors and const lvalue key. - const int key(42); - m.try_emplace(key, 3, 'a'); - m.try_emplace(2, std::string("two")); - - EXPECT_TRUE(std::is_sorted(m.begin(), m.end())); - EXPECT_THAT(m, ElementsAreArray(std::vector>{ - {1, "one"}, {2, "two"}, {42, "aaa"}})); -} - -TEST(Btree, TryEmplaceWithHintWorks) { - // Use a counting comparator here to verify that hint is used. - int calls = 0; - auto cmp = [&calls](int x, int y) { - ++calls; - return x < y; - }; - using Cmp = decltype(cmp); - - // Use a map that is opted out of key_compare being adapted so we can expect - // strict comparison call limits. - absl::btree_map> m(cmp); - for (int i = 0; i < 128; ++i) { - m.emplace(i, i); - } - - // Sanity check for the comparator - calls = 0; - m.emplace(127, 127); - EXPECT_GE(calls, 4); - - // Try with begin hint: - calls = 0; - auto it = m.try_emplace(m.begin(), -1, -1); - EXPECT_EQ(129, m.size()); - EXPECT_EQ(it, m.begin()); - EXPECT_LE(calls, 2); - - // Try with end hint: - calls = 0; - std::pair pair1024 = {1024, 1024}; - it = m.try_emplace(m.end(), pair1024.first, pair1024.second); - EXPECT_EQ(130, m.size()); - EXPECT_EQ(it, --m.end()); - EXPECT_LE(calls, 2); - - // Try value already present, bad hint; ensure no duplicate added: - calls = 0; - it = m.try_emplace(m.end(), 16, 17); - EXPECT_EQ(130, m.size()); - EXPECT_GE(calls, 4); - EXPECT_EQ(it, m.find(16)); - - // Try value already present, hint points directly to it: - calls = 0; - it = m.try_emplace(it, 16, 17); - EXPECT_EQ(130, m.size()); - EXPECT_LE(calls, 2); - EXPECT_EQ(it, m.find(16)); - - m.erase(2); - EXPECT_EQ(129, m.size()); - auto hint = m.find(3); - // Try emplace in the middle of two other elements. - calls = 0; - m.try_emplace(hint, 2, 2); - EXPECT_EQ(130, m.size()); - EXPECT_LE(calls, 2); - - EXPECT_TRUE(std::is_sorted(m.begin(), m.end())); -} - -TEST(Btree, TryEmplaceWithBadHint) { - absl::btree_map m = {{1, 1}, {9, 9}}; - - // Bad hint (too small), should still emplace: - auto it = m.try_emplace(m.begin(), 2, 2); - EXPECT_EQ(it, ++m.begin()); - EXPECT_THAT(m, ElementsAreArray( - std::vector>{{1, 1}, {2, 2}, {9, 9}})); - - // Bad hint, too large this time: - it = m.try_emplace(++(++m.begin()), 0, 0); - EXPECT_EQ(it, m.begin()); - EXPECT_THAT(m, ElementsAreArray(std::vector>{ - {0, 0}, {1, 1}, {2, 2}, {9, 9}})); -} - -TEST(Btree, TryEmplaceMaintainsSortedOrder) { - absl::btree_map m; - std::pair pair5 = {5, "five"}; - - // Test both lvalue & rvalue emplace. - m.try_emplace(10, "ten"); - m.try_emplace(pair5.first, pair5.second); - EXPECT_EQ(2, m.size()); - EXPECT_TRUE(std::is_sorted(m.begin(), m.end())); - - int int100{100}; - m.try_emplace(int100, "hundred"); - m.try_emplace(1, "one"); - EXPECT_EQ(4, m.size()); - EXPECT_TRUE(std::is_sorted(m.begin(), m.end())); -} - -TEST(Btree, TryEmplaceWithHintAndNoValueArgsWorks) { - absl::btree_map m; - m.try_emplace(m.end(), 1); - EXPECT_EQ(0, m[1]); -} - -TEST(Btree, TryEmplaceWithHintAndMultipleValueArgsWorks) { - absl::btree_map m; - m.try_emplace(m.end(), 1, 10, 'a'); - EXPECT_EQ(std::string(10, 'a'), m[1]); -} - -TEST(Btree, MoveAssignmentAllocatorPropagation) { - InstanceTracker tracker; - - int64_t bytes1 = 0, bytes2 = 0; - PropagatingCountingAlloc allocator1(&bytes1); - PropagatingCountingAlloc allocator2(&bytes2); - std::less cmp; - - // Test propagating allocator_type. - { - absl::btree_set, - PropagatingCountingAlloc> - set1(cmp, allocator1), set2(cmp, allocator2); - - for (int i = 0; i < 100; ++i) set1.insert(MovableOnlyInstance(i)); - - tracker.ResetCopiesMovesSwaps(); - set2 = std::move(set1); - EXPECT_EQ(tracker.moves(), 0); - } - // Test non-propagating allocator_type with equal allocators. - { - absl::btree_set, - CountingAllocator> - set1(cmp, allocator1), set2(cmp, allocator1); - - for (int i = 0; i < 100; ++i) set1.insert(MovableOnlyInstance(i)); - - tracker.ResetCopiesMovesSwaps(); - set2 = std::move(set1); - EXPECT_EQ(tracker.moves(), 0); - } - // Test non-propagating allocator_type with different allocators. - { - absl::btree_set, - CountingAllocator> - set1(cmp, allocator1), set2(cmp, allocator2); - - for (int i = 0; i < 100; ++i) set1.insert(MovableOnlyInstance(i)); - - tracker.ResetCopiesMovesSwaps(); - set2 = std::move(set1); - EXPECT_GE(tracker.moves(), 100); - } -} - -TEST(Btree, EmptyTree) { - absl::btree_set s; - EXPECT_TRUE(s.empty()); - EXPECT_EQ(s.size(), 0); - EXPECT_GT(s.max_size(), 0); -} - -bool IsEven(int k) { return k % 2 == 0; } - -TEST(Btree, EraseIf) { - // Test that erase_if works with all the container types and supports lambdas. - { - absl::btree_set s = {1, 3, 5, 6, 100}; - EXPECT_EQ(erase_if(s, [](int k) { return k > 3; }), 3); - EXPECT_THAT(s, ElementsAre(1, 3)); - } - { - absl::btree_multiset s = {1, 3, 3, 5, 6, 6, 100}; - EXPECT_EQ(erase_if(s, [](int k) { return k <= 3; }), 3); - EXPECT_THAT(s, ElementsAre(5, 6, 6, 100)); - } - { - absl::btree_map m = {{1, 1}, {3, 3}, {6, 6}, {100, 100}}; - EXPECT_EQ( - erase_if(m, [](std::pair kv) { return kv.first > 3; }), - 2); - EXPECT_THAT(m, ElementsAre(Pair(1, 1), Pair(3, 3))); - } - { - absl::btree_multimap m = {{1, 1}, {3, 3}, {3, 6}, - {6, 6}, {6, 7}, {100, 6}}; - EXPECT_EQ( - erase_if(m, - [](std::pair kv) { return kv.second == 6; }), - 3); - EXPECT_THAT(m, ElementsAre(Pair(1, 1), Pair(3, 3), Pair(6, 7))); - } - // Test that erasing all elements from a large set works and test support for - // function pointers. - { - absl::btree_set s; - for (int i = 0; i < 1000; ++i) s.insert(2 * i); - EXPECT_EQ(erase_if(s, IsEven), 1000); - EXPECT_THAT(s, IsEmpty()); - } - // Test that erase_if supports other format of function pointers. - { - absl::btree_set s = {1, 3, 5, 6, 100}; - EXPECT_EQ(erase_if(s, &IsEven), 2); - EXPECT_THAT(s, ElementsAre(1, 3, 5)); - } - // Test that erase_if invokes the predicate once per element. - { - absl::btree_set s; - for (int i = 0; i < 1000; ++i) s.insert(i); - int pred_calls = 0; - EXPECT_EQ(erase_if(s, - [&pred_calls](int k) { - ++pred_calls; - return k % 2; - }), - 500); - EXPECT_THAT(s, SizeIs(500)); - EXPECT_EQ(pred_calls, 1000); - } -} - -TEST(Btree, InsertOrAssign) { - absl::btree_map m = {{1, 1}, {3, 3}}; - using value_type = typename decltype(m)::value_type; - - auto ret = m.insert_or_assign(4, 4); - EXPECT_EQ(*ret.first, value_type(4, 4)); - EXPECT_TRUE(ret.second); - ret = m.insert_or_assign(3, 100); - EXPECT_EQ(*ret.first, value_type(3, 100)); - EXPECT_FALSE(ret.second); - - auto hint_ret = m.insert_or_assign(ret.first, 3, 200); - EXPECT_EQ(*hint_ret, value_type(3, 200)); - hint_ret = m.insert_or_assign(m.find(1), 0, 1); - EXPECT_EQ(*hint_ret, value_type(0, 1)); - // Test with bad hint. - hint_ret = m.insert_or_assign(m.end(), -1, 1); - EXPECT_EQ(*hint_ret, value_type(-1, 1)); - - EXPECT_THAT(m, ElementsAre(Pair(-1, 1), Pair(0, 1), Pair(1, 1), Pair(3, 200), - Pair(4, 4))); -} - -TEST(Btree, InsertOrAssignMovableOnly) { - absl::btree_map m; - using value_type = typename decltype(m)::value_type; - - auto ret = m.insert_or_assign(4, MovableOnlyInstance(4)); - EXPECT_EQ(*ret.first, value_type(4, MovableOnlyInstance(4))); - EXPECT_TRUE(ret.second); - ret = m.insert_or_assign(4, MovableOnlyInstance(100)); - EXPECT_EQ(*ret.first, value_type(4, MovableOnlyInstance(100))); - EXPECT_FALSE(ret.second); - - auto hint_ret = m.insert_or_assign(ret.first, 3, MovableOnlyInstance(200)); - EXPECT_EQ(*hint_ret, value_type(3, MovableOnlyInstance(200))); - - EXPECT_EQ(m.size(), 2); -} - -TEST(Btree, BitfieldArgument) { - union { - int n : 1; - }; - n = 0; - absl::btree_map m; - m.erase(n); - m.count(n); - m.find(n); - m.contains(n); - m.equal_range(n); - m.insert_or_assign(n, n); - m.insert_or_assign(m.end(), n, n); - m.try_emplace(n); - m.try_emplace(m.end(), n); - m.at(n); - m[n]; -} - -TEST(Btree, SetRangeConstructorAndInsertSupportExplicitConversionComparable) { - const absl::string_view names[] = {"n1", "n2"}; - - absl::btree_set name_set1{std::begin(names), std::end(names)}; - EXPECT_THAT(name_set1, ElementsAreArray(names)); - - absl::btree_set name_set2; - name_set2.insert(std::begin(names), std::end(names)); - EXPECT_THAT(name_set2, ElementsAreArray(names)); -} - -// A type that is explicitly convertible from int and counts constructor calls. -struct ConstructorCounted { - explicit ConstructorCounted(int i) : i(i) { ++constructor_calls; } - bool operator==(int other) const { return i == other; } - - int i; - static int constructor_calls; -}; -int ConstructorCounted::constructor_calls = 0; - -struct ConstructorCountedCompare { - bool operator()(int a, const ConstructorCounted &b) const { return a < b.i; } - bool operator()(const ConstructorCounted &a, int b) const { return a.i < b; } - bool operator()(const ConstructorCounted &a, - const ConstructorCounted &b) const { - return a.i < b.i; - } - using is_transparent = void; -}; - -TEST(Btree, - SetRangeConstructorAndInsertExplicitConvComparableLimitConstruction) { - const int i[] = {0, 1, 1}; - ConstructorCounted::constructor_calls = 0; - - absl::btree_set set{ - std::begin(i), std::end(i)}; - EXPECT_THAT(set, ElementsAre(0, 1)); - EXPECT_EQ(ConstructorCounted::constructor_calls, 2); - - set.insert(std::begin(i), std::end(i)); - EXPECT_THAT(set, ElementsAre(0, 1)); - EXPECT_EQ(ConstructorCounted::constructor_calls, 2); -} - -TEST(Btree, - SetRangeConstructorAndInsertSupportExplicitConversionNonComparable) { - const int i[] = {0, 1}; - - absl::btree_set> s1{std::begin(i), std::end(i)}; - EXPECT_THAT(s1, ElementsAre(IsEmpty(), ElementsAre(IsNull()))); - - absl::btree_set> s2; - s2.insert(std::begin(i), std::end(i)); - EXPECT_THAT(s2, ElementsAre(IsEmpty(), ElementsAre(IsNull()))); -} - -// libstdc++ included with GCC 4.9 has a bug in the std::pair constructors that -// prevents explicit conversions between pair types. -// We only run this test for the libstdc++ from GCC 7 or newer because we can't -// reliably check the libstdc++ version prior to that release. -#if !defined(__GLIBCXX__) || \ - (defined(_GLIBCXX_RELEASE) && _GLIBCXX_RELEASE >= 7) -TEST(Btree, MapRangeConstructorAndInsertSupportExplicitConversionComparable) { - const std::pair names[] = {{"n1", 1}, {"n2", 2}}; - - absl::btree_map name_map1{std::begin(names), - std::end(names)}; - EXPECT_THAT(name_map1, ElementsAre(Pair("n1", 1), Pair("n2", 2))); - - absl::btree_map name_map2; - name_map2.insert(std::begin(names), std::end(names)); - EXPECT_THAT(name_map2, ElementsAre(Pair("n1", 1), Pair("n2", 2))); -} - -TEST(Btree, - MapRangeConstructorAndInsertExplicitConvComparableLimitConstruction) { - const std::pair i[] = {{0, 1}, {1, 2}, {1, 3}}; - ConstructorCounted::constructor_calls = 0; - - absl::btree_map map{ - std::begin(i), std::end(i)}; - EXPECT_THAT(map, ElementsAre(Pair(0, 1), Pair(1, 2))); - EXPECT_EQ(ConstructorCounted::constructor_calls, 2); - - map.insert(std::begin(i), std::end(i)); - EXPECT_THAT(map, ElementsAre(Pair(0, 1), Pair(1, 2))); - EXPECT_EQ(ConstructorCounted::constructor_calls, 2); -} - -TEST(Btree, - MapRangeConstructorAndInsertSupportExplicitConversionNonComparable) { - const std::pair i[] = {{0, 1}, {1, 2}}; - - absl::btree_map, int> m1{std::begin(i), std::end(i)}; - EXPECT_THAT(m1, - ElementsAre(Pair(IsEmpty(), 1), Pair(ElementsAre(IsNull()), 2))); - - absl::btree_map, int> m2; - m2.insert(std::begin(i), std::end(i)); - EXPECT_THAT(m2, - ElementsAre(Pair(IsEmpty(), 1), Pair(ElementsAre(IsNull()), 2))); -} - -TEST(Btree, HeterogeneousTryEmplace) { - absl::btree_map m; - std::string s = "key"; - absl::string_view sv = s; - m.try_emplace(sv, 1); - EXPECT_EQ(m[s], 1); - - m.try_emplace(m.end(), sv, 2); - EXPECT_EQ(m[s], 1); -} - -TEST(Btree, HeterogeneousOperatorMapped) { - absl::btree_map m; - std::string s = "key"; - absl::string_view sv = s; - m[sv] = 1; - EXPECT_EQ(m[s], 1); - - m[sv] = 2; - EXPECT_EQ(m[s], 2); -} - -TEST(Btree, HeterogeneousInsertOrAssign) { - absl::btree_map m; - std::string s = "key"; - absl::string_view sv = s; - m.insert_or_assign(sv, 1); - EXPECT_EQ(m[s], 1); - - m.insert_or_assign(m.end(), sv, 2); - EXPECT_EQ(m[s], 2); -} -#endif - -// This test requires std::launder for mutable key access in node handles. -#if defined(__cpp_lib_launder) && __cpp_lib_launder >= 201606 -TEST(Btree, NodeHandleMutableKeyAccess) { - { - absl::btree_map map; - - map["key1"] = "mapped"; - - auto nh = map.extract(map.begin()); - nh.key().resize(3); - map.insert(std::move(nh)); - - EXPECT_THAT(map, ElementsAre(Pair("key", "mapped"))); - } - // Also for multimap. - { - absl::btree_multimap map; - - map.emplace("key1", "mapped"); - - auto nh = map.extract(map.begin()); - nh.key().resize(3); - map.insert(std::move(nh)); - - EXPECT_THAT(map, ElementsAre(Pair("key", "mapped"))); - } -} -#endif - -struct MultiKey { - int i1; - int i2; -}; - -bool operator==(const MultiKey a, const MultiKey b) { - return a.i1 == b.i1 && a.i2 == b.i2; -} - -// A heterogeneous comparator that has different equivalence classes for -// different lookup types. -struct MultiKeyComp { - using is_transparent = void; - bool operator()(const MultiKey a, const MultiKey b) const { - if (a.i1 != b.i1) return a.i1 < b.i1; - return a.i2 < b.i2; - } - bool operator()(const int a, const MultiKey b) const { return a < b.i1; } - bool operator()(const MultiKey a, const int b) const { return a.i1 < b; } -}; - -// A heterogeneous, three-way comparator that has different equivalence classes -// for different lookup types. -struct MultiKeyThreeWayComp { - using is_transparent = void; - absl::weak_ordering operator()(const MultiKey a, const MultiKey b) const { - if (a.i1 < b.i1) return absl::weak_ordering::less; - if (a.i1 > b.i1) return absl::weak_ordering::greater; - if (a.i2 < b.i2) return absl::weak_ordering::less; - if (a.i2 > b.i2) return absl::weak_ordering::greater; - return absl::weak_ordering::equivalent; - } - absl::weak_ordering operator()(const int a, const MultiKey b) const { - if (a < b.i1) return absl::weak_ordering::less; - if (a > b.i1) return absl::weak_ordering::greater; - return absl::weak_ordering::equivalent; - } - absl::weak_ordering operator()(const MultiKey a, const int b) const { - if (a.i1 < b) return absl::weak_ordering::less; - if (a.i1 > b) return absl::weak_ordering::greater; - return absl::weak_ordering::equivalent; - } -}; - -template -class BtreeMultiKeyTest : public ::testing::Test {}; -using MultiKeyComps = ::testing::Types; -TYPED_TEST_SUITE(BtreeMultiKeyTest, MultiKeyComps); - -TYPED_TEST(BtreeMultiKeyTest, EqualRange) { - absl::btree_set set; - for (int i = 0; i < 100; ++i) { - for (int j = 0; j < 100; ++j) { - set.insert({i, j}); - } - } - - for (int i = 0; i < 100; ++i) { - auto equal_range = set.equal_range(i); - EXPECT_EQ(equal_range.first->i1, i); - EXPECT_EQ(equal_range.first->i2, 0) << i; - EXPECT_EQ(std::distance(equal_range.first, equal_range.second), 100) << i; - } -} - -TYPED_TEST(BtreeMultiKeyTest, Extract) { - absl::btree_set set; - for (int i = 0; i < 100; ++i) { - for (int j = 0; j < 100; ++j) { - set.insert({i, j}); - } - } - - for (int i = 0; i < 100; ++i) { - auto node_handle = set.extract(i); - EXPECT_EQ(node_handle.value().i1, i); - EXPECT_EQ(node_handle.value().i2, 0) << i; - } - - for (int i = 0; i < 100; ++i) { - auto node_handle = set.extract(i); - EXPECT_EQ(node_handle.value().i1, i); - EXPECT_EQ(node_handle.value().i2, 1) << i; - } -} - -TYPED_TEST(BtreeMultiKeyTest, Erase) { - absl::btree_set set = { - {1, 1}, {2, 1}, {2, 2}, {3, 1}}; - EXPECT_EQ(set.erase(2), 2); - EXPECT_THAT(set, ElementsAre(MultiKey{1, 1}, MultiKey{3, 1})); -} - -TYPED_TEST(BtreeMultiKeyTest, Count) { - const absl::btree_set set = { - {1, 1}, {2, 1}, {2, 2}, {3, 1}}; - EXPECT_EQ(set.count(2), 2); -} - -TEST(Btree, AllocConstructor) { - using Alloc = CountingAllocator; - using Set = absl::btree_set, Alloc>; - int64_t bytes_used = 0; - Alloc alloc(&bytes_used); - Set set(alloc); - - set.insert({1, 2, 3}); - - EXPECT_THAT(set, ElementsAre(1, 2, 3)); - EXPECT_GT(bytes_used, set.size() * sizeof(int)); -} - -TEST(Btree, AllocInitializerListConstructor) { - using Alloc = CountingAllocator; - using Set = absl::btree_set, Alloc>; - int64_t bytes_used = 0; - Alloc alloc(&bytes_used); - Set set({1, 2, 3}, alloc); - - EXPECT_THAT(set, ElementsAre(1, 2, 3)); - EXPECT_GT(bytes_used, set.size() * sizeof(int)); -} - -TEST(Btree, AllocRangeConstructor) { - using Alloc = CountingAllocator; - using Set = absl::btree_set, Alloc>; - int64_t bytes_used = 0; - Alloc alloc(&bytes_used); - std::vector v = {1, 2, 3}; - Set set(v.begin(), v.end(), alloc); - - EXPECT_THAT(set, ElementsAre(1, 2, 3)); - EXPECT_GT(bytes_used, set.size() * sizeof(int)); -} - -TEST(Btree, AllocCopyConstructor) { - using Alloc = CountingAllocator; - using Set = absl::btree_set, Alloc>; - int64_t bytes_used1 = 0; - Alloc alloc1(&bytes_used1); - Set set1(alloc1); - - set1.insert({1, 2, 3}); - - int64_t bytes_used2 = 0; - Alloc alloc2(&bytes_used2); - Set set2(set1, alloc2); - - EXPECT_THAT(set1, ElementsAre(1, 2, 3)); - EXPECT_THAT(set2, ElementsAre(1, 2, 3)); - EXPECT_GT(bytes_used1, set1.size() * sizeof(int)); - EXPECT_EQ(bytes_used1, bytes_used2); -} - -TEST(Btree, AllocMoveConstructor_SameAlloc) { - using Alloc = CountingAllocator; - using Set = absl::btree_set, Alloc>; - int64_t bytes_used = 0; - Alloc alloc(&bytes_used); - Set set1(alloc); - - set1.insert({1, 2, 3}); - - const int64_t original_bytes_used = bytes_used; - EXPECT_GT(original_bytes_used, set1.size() * sizeof(int)); - - Set set2(std::move(set1), alloc); - - EXPECT_THAT(set2, ElementsAre(1, 2, 3)); - EXPECT_EQ(bytes_used, original_bytes_used); -} - -TEST(Btree, AllocMoveConstructor_DifferentAlloc) { - using Alloc = CountingAllocator; - using Set = absl::btree_set, Alloc>; - int64_t bytes_used1 = 0; - Alloc alloc1(&bytes_used1); - Set set1(alloc1); - - set1.insert({1, 2, 3}); - - const int64_t original_bytes_used = bytes_used1; - EXPECT_GT(original_bytes_used, set1.size() * sizeof(int)); - - int64_t bytes_used2 = 0; - Alloc alloc2(&bytes_used2); - Set set2(std::move(set1), alloc2); - - EXPECT_THAT(set2, ElementsAre(1, 2, 3)); - // We didn't free these bytes allocated by `set1` yet. - EXPECT_EQ(bytes_used1, original_bytes_used); - EXPECT_EQ(bytes_used2, original_bytes_used); -} - -bool IntCmp(const int a, const int b) { return a < b; } - -TEST(Btree, SupportsFunctionPtrComparator) { - absl::btree_set set(IntCmp); - set.insert({1, 2, 3}); - EXPECT_THAT(set, ElementsAre(1, 2, 3)); - EXPECT_TRUE(set.key_comp()(1, 2)); - EXPECT_TRUE(set.value_comp()(1, 2)); - - absl::btree_map map(&IntCmp); - map[1] = 1; - EXPECT_THAT(map, ElementsAre(Pair(1, 1))); - EXPECT_TRUE(map.key_comp()(1, 2)); - EXPECT_TRUE(map.value_comp()(std::make_pair(1, 1), std::make_pair(2, 2))); -} - -template -struct TransparentPassThroughComp { - using is_transparent = void; - - // This will fail compilation if we attempt a comparison that Compare does not - // support, and the failure will happen inside the function implementation so - // it can't be avoided by using SFINAE on this comparator. - template - bool operator()(const T &lhs, const U &rhs) const { - return Compare()(lhs, rhs); - } -}; - -TEST(Btree, - SupportsTransparentComparatorThatDoesNotImplementAllVisibleOperators) { - absl::btree_set> set; - set.insert(MultiKey{1, 2}); - EXPECT_TRUE(set.contains(1)); -} - -TEST(Btree, ConstructImplicitlyWithUnadaptedComparator) { - absl::btree_set set = {{}, MultiKeyComp{}}; -} - -TEST(Btree, InvalidComparatorsCaught) { - if (!IsAssertEnabled()) GTEST_SKIP() << "Assertions not enabled."; - - { - struct ZeroAlwaysLessCmp { - bool operator()(int lhs, int rhs) const { - if (lhs == 0) return true; - return lhs < rhs; - } - }; - absl::btree_set set; - EXPECT_DEATH(set.insert({0, 1, 2}), "is_self_equivalent"); - } - { - struct ThreeWayAlwaysLessCmp { - absl::weak_ordering operator()(int, int) const { - return absl::weak_ordering::less; - } - }; - absl::btree_set set; - EXPECT_DEATH(set.insert({0, 1, 2}), "is_self_equivalent"); - } - { - struct SumGreaterZeroCmp { - bool operator()(int lhs, int rhs) const { - // First, do equivalence correctly - so we can test later condition. - if (lhs == rhs) return false; - return lhs + rhs > 0; - } - }; - absl::btree_set set; - // Note: '!' only needs to be escaped when it's the first character. - EXPECT_DEATH(set.insert({0, 1, 2}), - R"regex(\!lhs_comp_rhs \|\| !comp\(\)\(rhs, lhs\))regex"); - } - { - struct ThreeWaySumGreaterZeroCmp { - absl::weak_ordering operator()(int lhs, int rhs) const { - // First, do equivalence correctly - so we can test later condition. - if (lhs == rhs) return absl::weak_ordering::equivalent; - - if (lhs + rhs > 0) return absl::weak_ordering::less; - if (lhs + rhs == 0) return absl::weak_ordering::equivalent; - return absl::weak_ordering::greater; - } - }; - absl::btree_set set; - EXPECT_DEATH(set.insert({0, 1, 2}), "lhs_comp_rhs < 0 -> rhs_comp_lhs > 0"); - } -} - -#ifndef _MSC_VER -// This test crashes on MSVC. -TEST(Btree, InvalidIteratorUse) { - if (!BtreeNodePeer::UsesGenerations>()) - GTEST_SKIP() << "Generation validation for iterators is disabled."; - - { - absl::btree_set set; - for (int i = 0; i < 10; ++i) set.insert(i); - auto it = set.begin(); - set.erase(it++); - EXPECT_DEATH(set.erase(it++), "invalidated iterator"); - } - { - absl::btree_set set; - for (int i = 0; i < 10; ++i) set.insert(i); - auto it = set.insert(20).first; - set.insert(30); - EXPECT_DEATH(*it, "invalidated iterator"); - } - { - absl::btree_set set; - for (int i = 0; i < 10000; ++i) set.insert(i); - auto it = set.find(5000); - ASSERT_NE(it, set.end()); - set.erase(1); - EXPECT_DEATH(*it, "invalidated iterator"); - } - { - absl::btree_set set; - for (int i = 0; i < 10; ++i) set.insert(i); - auto it = set.insert(20).first; - set.insert(30); - EXPECT_DEATH(void(it == set.begin()), "invalidated iterator"); - EXPECT_DEATH(void(set.begin() == it), "invalidated iterator"); - } -} -#endif - -class OnlyConstructibleByAllocator { - explicit OnlyConstructibleByAllocator(int i) : i_(i) {} - - public: - OnlyConstructibleByAllocator(const OnlyConstructibleByAllocator &other) - : i_(other.i_) {} - OnlyConstructibleByAllocator &operator=( - const OnlyConstructibleByAllocator &other) { - i_ = other.i_; - return *this; - } - int Get() const { return i_; } - bool operator==(int i) const { return i_ == i; } - - private: - template - friend class OnlyConstructibleAllocator; - - int i_; -}; - -template -class OnlyConstructibleAllocator : public std::allocator { - public: - OnlyConstructibleAllocator() = default; - template - explicit OnlyConstructibleAllocator(const OnlyConstructibleAllocator &) {} - - void construct(OnlyConstructibleByAllocator *p, int i) { - new (p) OnlyConstructibleByAllocator(i); - } - template - void construct(Pair *p, const int i) { - OnlyConstructibleByAllocator only(i); - new (p) Pair(std::move(only), i); - } - - template - struct rebind { - using other = OnlyConstructibleAllocator; - }; -}; - -struct OnlyConstructibleByAllocatorComp { - using is_transparent = void; - bool operator()(OnlyConstructibleByAllocator a, - OnlyConstructibleByAllocator b) const { - return a.Get() < b.Get(); - } - bool operator()(int a, OnlyConstructibleByAllocator b) const { - return a < b.Get(); - } - bool operator()(OnlyConstructibleByAllocator a, int b) const { - return a.Get() < b; - } -}; - -TEST(Btree, OnlyConstructibleByAllocatorType) { - const std::array arr = {3, 4}; - { - absl::btree_set> - set; - set.emplace(1); - set.emplace_hint(set.end(), 2); - set.insert(arr.begin(), arr.end()); - EXPECT_THAT(set, ElementsAre(1, 2, 3, 4)); - } - { - absl::btree_multiset> - set; - set.emplace(1); - set.emplace_hint(set.end(), 2); - // TODO(ezb): fix insert_multi to allow this to compile. - // set.insert(arr.begin(), arr.end()); - EXPECT_THAT(set, ElementsAre(1, 2)); - } - { - absl::btree_map> - map; - map.emplace(1); - map.emplace_hint(map.end(), 2); - map.insert(arr.begin(), arr.end()); - EXPECT_THAT(map, - ElementsAre(Pair(1, 1), Pair(2, 2), Pair(3, 3), Pair(4, 4))); - } - { - absl::btree_multimap> - map; - map.emplace(1); - map.emplace_hint(map.end(), 2); - // TODO(ezb): fix insert_multi to allow this to compile. - // map.insert(arr.begin(), arr.end()); - EXPECT_THAT(map, ElementsAre(Pair(1, 1), Pair(2, 2))); - } -} - -class NotAssignable { - public: - explicit NotAssignable(int i) : i_(i) {} - NotAssignable(const NotAssignable &other) : i_(other.i_) {} - NotAssignable &operator=(NotAssignable &&other) = delete; - int Get() const { return i_; } - bool operator==(int i) const { return i_ == i; } - friend bool operator<(NotAssignable a, NotAssignable b) { - return a.i_ < b.i_; - } - - private: - int i_; -}; - -TEST(Btree, NotAssignableType) { - { - absl::btree_set set; - set.emplace(1); - set.emplace_hint(set.end(), 2); - set.insert(NotAssignable(3)); - set.insert(set.end(), NotAssignable(4)); - EXPECT_THAT(set, ElementsAre(1, 2, 3, 4)); - set.erase(set.begin()); - EXPECT_THAT(set, ElementsAre(2, 3, 4)); - } - { - absl::btree_multiset set; - set.emplace(1); - set.emplace_hint(set.end(), 2); - set.insert(NotAssignable(2)); - set.insert(set.end(), NotAssignable(3)); - EXPECT_THAT(set, ElementsAre(1, 2, 2, 3)); - set.erase(set.begin()); - EXPECT_THAT(set, ElementsAre(2, 2, 3)); - } - { - absl::btree_map map; - map.emplace(NotAssignable(1), 1); - map.emplace_hint(map.end(), NotAssignable(2), 2); - map.insert({NotAssignable(3), 3}); - map.insert(map.end(), {NotAssignable(4), 4}); - EXPECT_THAT(map, - ElementsAre(Pair(1, 1), Pair(2, 2), Pair(3, 3), Pair(4, 4))); - map.erase(map.begin()); - EXPECT_THAT(map, ElementsAre(Pair(2, 2), Pair(3, 3), Pair(4, 4))); - } - { - absl::btree_multimap map; - map.emplace(NotAssignable(1), 1); - map.emplace_hint(map.end(), NotAssignable(2), 2); - map.insert({NotAssignable(2), 3}); - map.insert(map.end(), {NotAssignable(3), 3}); - EXPECT_THAT(map, - ElementsAre(Pair(1, 1), Pair(2, 2), Pair(2, 3), Pair(3, 3))); - map.erase(map.begin()); - EXPECT_THAT(map, ElementsAre(Pair(2, 2), Pair(2, 3), Pair(3, 3))); - } -} - -struct ArenaLike { - void* recycled = nullptr; - size_t recycled_size = 0; -}; - -// A very simple implementation of arena allocation. -template -class ArenaLikeAllocator : public std::allocator { - public: - // Standard library containers require the ability to allocate objects of - // different types which they can do so via rebind.other. - template - struct rebind { - using other = ArenaLikeAllocator; - }; - - explicit ArenaLikeAllocator(ArenaLike* arena) noexcept : arena_(arena) {} - - ~ArenaLikeAllocator() { - if (arena_->recycled != nullptr) { - delete [] static_cast(arena_->recycled); - arena_->recycled = nullptr; - } - } - - template - explicit ArenaLikeAllocator(const ArenaLikeAllocator& other) noexcept - : arena_(other.arena_) {} - - T* allocate(size_t num_objects, const void* = nullptr) { - size_t size = num_objects * sizeof(T); - if (arena_->recycled != nullptr && arena_->recycled_size == size) { - T* result = static_cast(arena_->recycled); - arena_->recycled = nullptr; - return result; - } - return new T[num_objects]; - } - - void deallocate(T* p, size_t num_objects) { - size_t size = num_objects * sizeof(T); - - // Simulate writing to the freed memory as an actual arena allocator might - // do. This triggers an error report if the memory is poisoned. - memset(p, 0xde, size); - - if (arena_->recycled == nullptr) { - arena_->recycled = p; - arena_->recycled_size = size; - } else { - delete [] p; - } - } - - ArenaLike* arena_; -}; - -// This test verifies that an arena allocator that reuses memory will not be -// asked to free poisoned BTree memory. -TEST(Btree, ReusePoisonMemory) { - using Alloc = ArenaLikeAllocator; - using Set = absl::btree_set, Alloc>; - ArenaLike arena; - Alloc alloc(&arena); - Set set(alloc); - - set.insert(0); - set.erase(0); - set.insert(0); -} - -TEST(Btree, IteratorSubtraction) { - absl::BitGen bitgen; - std::vector vec; - // Randomize the set's insertion order so the nodes aren't all full. - for (int i = 0; i < 1000000; ++i) vec.push_back(i); - absl::c_shuffle(vec, bitgen); - - absl::btree_set set; - for (int i : vec) set.insert(i); - - for (int i = 0; i < 1000; ++i) { - size_t begin = absl::Uniform(bitgen, 0u, set.size()); - size_t end = absl::Uniform(bitgen, begin, set.size()); - ASSERT_EQ(end - begin, set.find(end) - set.find(begin)) - << begin << " " << end; - } -} - -TEST(Btree, DereferencingEndIterator) { - if (!IsAssertEnabled()) GTEST_SKIP() << "Assertions not enabled."; - - absl::btree_set set; - for (int i = 0; i < 1000; ++i) set.insert(i); - EXPECT_DEATH(*set.end(), R"regex(Dereferencing end\(\) iterator)regex"); -} - -TEST(Btree, InvalidIteratorComparison) { - if (!IsAssertEnabled()) GTEST_SKIP() << "Assertions not enabled."; - - absl::btree_set set1, set2; - for (int i = 0; i < 1000; ++i) { - set1.insert(i); - set2.insert(i); - } - - constexpr const char *kValueInitDeathMessage = - "Comparing default-constructed iterator with .*non-default-constructed " - "iterator"; - typename absl::btree_set::iterator iter1, iter2; - EXPECT_EQ(iter1, iter2); - EXPECT_DEATH(void(set1.begin() == iter1), kValueInitDeathMessage); - EXPECT_DEATH(void(iter1 == set1.begin()), kValueInitDeathMessage); - - constexpr const char *kDifferentContainerDeathMessage = - "Comparing iterators from different containers"; - iter1 = set1.begin(); - iter2 = set2.begin(); - EXPECT_DEATH(void(iter1 == iter2), kDifferentContainerDeathMessage); - EXPECT_DEATH(void(iter2 == iter1), kDifferentContainerDeathMessage); -} - -} // namespace -} // namespace container_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/src/third_party/abseil-cpp/absl/container/btree_test.h b/src/third_party/abseil-cpp/absl/container/btree_test.h deleted file mode 100644 index 624908072d..0000000000 --- a/src/third_party/abseil-cpp/absl/container/btree_test.h +++ /dev/null @@ -1,166 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#ifndef ABSL_CONTAINER_BTREE_TEST_H_ -#define ABSL_CONTAINER_BTREE_TEST_H_ - -#include -#include -#include -#include -#include -#include - -#include "absl/container/btree_map.h" -#include "absl/container/btree_set.h" -#include "absl/container/flat_hash_set.h" -#include "absl/strings/cord.h" -#include "absl/time/time.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace container_internal { - -// Like remove_const but propagates the removal through std::pair. -template -struct remove_pair_const { - using type = typename std::remove_const::type; -}; -template -struct remove_pair_const > { - using type = std::pair::type, - typename remove_pair_const::type>; -}; - -// Utility class to provide an accessor for a key given a value. The default -// behavior is to treat the value as a pair and return the first element. -template -struct KeyOfValue { - struct type { - const K& operator()(const V& p) const { return p.first; } - }; -}; - -// Partial specialization of KeyOfValue class for when the key and value are -// the same type such as in set<> and btree_set<>. -template -struct KeyOfValue { - struct type { - const K& operator()(const K& k) const { return k; } - }; -}; - -inline char* GenerateDigits(char buf[16], unsigned val, unsigned maxval) { - assert(val <= maxval); - constexpr unsigned kBase = 64; // avoid integer division. - unsigned p = 15; - buf[p--] = 0; - while (maxval > 0) { - buf[p--] = ' ' + (val % kBase); - val /= kBase; - maxval /= kBase; - } - return buf + p + 1; -} - -template -struct Generator { - int maxval; - explicit Generator(int m) : maxval(m) {} - K operator()(int i) const { - assert(i <= maxval); - return K(i); - } -}; - -template <> -struct Generator { - int maxval; - explicit Generator(int m) : maxval(m) {} - absl::Time operator()(int i) const { return absl::FromUnixMillis(i); } -}; - -template <> -struct Generator { - int maxval; - explicit Generator(int m) : maxval(m) {} - std::string operator()(int i) const { - char buf[16]; - return GenerateDigits(buf, i, maxval); - } -}; - -template <> -struct Generator { - int maxval; - explicit Generator(int m) : maxval(m) {} - Cord operator()(int i) const { - char buf[16]; - return Cord(GenerateDigits(buf, i, maxval)); - } -}; - -template -struct Generator > { - Generator::type> tgen; - Generator::type> ugen; - - explicit Generator(int m) : tgen(m), ugen(m) {} - std::pair operator()(int i) const { - return std::make_pair(tgen(i), ugen(i)); - } -}; - -// Generate n values for our tests and benchmarks. Value range is [0, maxval]. -inline std::vector GenerateNumbersWithSeed(int n, int maxval, int seed) { - // NOTE: Some tests rely on generated numbers not changing between test runs. - // We use std::minstd_rand0 because it is well-defined, but don't use - // std::uniform_int_distribution because platforms use different algorithms. - std::minstd_rand0 rng(seed); - - std::vector values; - absl::flat_hash_set unique_values; - if (values.size() < n) { - for (int i = values.size(); i < n; i++) { - int value; - do { - value = static_cast(rng()) % (maxval + 1); - } while (!unique_values.insert(value).second); - - values.push_back(value); - } - } - return values; -} - -// Generates n values in the range [0, maxval]. -template -std::vector GenerateValuesWithSeed(int n, int maxval, int seed) { - const std::vector nums = GenerateNumbersWithSeed(n, maxval, seed); - Generator gen(maxval); - std::vector vec; - - vec.reserve(n); - for (int i = 0; i < n; i++) { - vec.push_back(gen(nums[i])); - } - - return vec; -} - -} // namespace container_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_CONTAINER_BTREE_TEST_H_ diff --git a/src/third_party/abseil-cpp/absl/container/fixed_array.h b/src/third_party/abseil-cpp/absl/container/fixed_array.h deleted file mode 100644 index b67379cfe7..0000000000 --- a/src/third_party/abseil-cpp/absl/container/fixed_array.h +++ /dev/null @@ -1,531 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// ----------------------------------------------------------------------------- -// File: fixed_array.h -// ----------------------------------------------------------------------------- -// -// A `FixedArray` represents a non-resizable array of `T` where the length of -// the array can be determined at run-time. It is a good replacement for -// non-standard and deprecated uses of `alloca()` and variable length arrays -// within the GCC extension. (See -// https://gcc.gnu.org/onlinedocs/gcc/Variable-Length.html). -// -// `FixedArray` allocates small arrays inline, keeping performance fast by -// avoiding heap operations. It also helps reduce the chances of -// accidentally overflowing your stack if large input is passed to -// your function. - -#ifndef ABSL_CONTAINER_FIXED_ARRAY_H_ -#define ABSL_CONTAINER_FIXED_ARRAY_H_ - -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "absl/algorithm/algorithm.h" -#include "absl/base/config.h" -#include "absl/base/dynamic_annotations.h" -#include "absl/base/internal/throw_delegate.h" -#include "absl/base/macros.h" -#include "absl/base/optimization.h" -#include "absl/base/port.h" -#include "absl/container/internal/compressed_tuple.h" -#include "absl/memory/memory.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN - -constexpr static auto kFixedArrayUseDefault = static_cast(-1); - -// ----------------------------------------------------------------------------- -// FixedArray -// ----------------------------------------------------------------------------- -// -// A `FixedArray` provides a run-time fixed-size array, allocating a small array -// inline for efficiency. -// -// Most users should not specify the `N` template parameter and let `FixedArray` -// automatically determine the number of elements to store inline based on -// `sizeof(T)`. If `N` is specified, the `FixedArray` implementation will use -// inline storage for arrays with a length <= `N`. -// -// Note that a `FixedArray` constructed with a `size_type` argument will -// default-initialize its values by leaving trivially constructible types -// uninitialized (e.g. int, int[4], double), and others default-constructed. -// This matches the behavior of c-style arrays and `std::array`, but not -// `std::vector`. -template > -class FixedArray { - static_assert(!std::is_array::value || std::extent::value > 0, - "Arrays with unknown bounds cannot be used with FixedArray."); - - static constexpr size_t kInlineBytesDefault = 256; - - using AllocatorTraits = std::allocator_traits; - // std::iterator_traits isn't guaranteed to be SFINAE-friendly until C++17, - // but this seems to be mostly pedantic. - template - using EnableIfForwardIterator = absl::enable_if_t::iterator_category, - std::forward_iterator_tag>::value>; - static constexpr bool NoexceptCopyable() { - return std::is_nothrow_copy_constructible::value && - absl::allocator_is_nothrow::value; - } - static constexpr bool NoexceptMovable() { - return std::is_nothrow_move_constructible::value && - absl::allocator_is_nothrow::value; - } - static constexpr bool DefaultConstructorIsNonTrivial() { - return !absl::is_trivially_default_constructible::value; - } - - public: - using allocator_type = typename AllocatorTraits::allocator_type; - using value_type = typename AllocatorTraits::value_type; - using pointer = typename AllocatorTraits::pointer; - using const_pointer = typename AllocatorTraits::const_pointer; - using reference = value_type&; - using const_reference = const value_type&; - using size_type = typename AllocatorTraits::size_type; - using difference_type = typename AllocatorTraits::difference_type; - using iterator = pointer; - using const_iterator = const_pointer; - using reverse_iterator = std::reverse_iterator; - using const_reverse_iterator = std::reverse_iterator; - - static constexpr size_type inline_elements = - (N == kFixedArrayUseDefault ? kInlineBytesDefault / sizeof(value_type) - : static_cast(N)); - - FixedArray( - const FixedArray& other, - const allocator_type& a = allocator_type()) noexcept(NoexceptCopyable()) - : FixedArray(other.begin(), other.end(), a) {} - - FixedArray( - FixedArray&& other, - const allocator_type& a = allocator_type()) noexcept(NoexceptMovable()) - : FixedArray(std::make_move_iterator(other.begin()), - std::make_move_iterator(other.end()), a) {} - - // Creates an array object that can store `n` elements. - // Note that trivially constructible elements will be uninitialized. - explicit FixedArray(size_type n, const allocator_type& a = allocator_type()) - : storage_(n, a) { - if (DefaultConstructorIsNonTrivial()) { - memory_internal::ConstructRange(storage_.alloc(), storage_.begin(), - storage_.end()); - } - } - - // Creates an array initialized with `n` copies of `val`. - FixedArray(size_type n, const value_type& val, - const allocator_type& a = allocator_type()) - : storage_(n, a) { - memory_internal::ConstructRange(storage_.alloc(), storage_.begin(), - storage_.end(), val); - } - - // Creates an array initialized with the size and contents of `init_list`. - FixedArray(std::initializer_list init_list, - const allocator_type& a = allocator_type()) - : FixedArray(init_list.begin(), init_list.end(), a) {} - - // Creates an array initialized with the elements from the input - // range. The array's size will always be `std::distance(first, last)`. - // REQUIRES: Iterator must be a forward_iterator or better. - template * = nullptr> - FixedArray(Iterator first, Iterator last, - const allocator_type& a = allocator_type()) - : storage_(std::distance(first, last), a) { - memory_internal::CopyRange(storage_.alloc(), storage_.begin(), first, last); - } - - ~FixedArray() noexcept { - for (auto* cur = storage_.begin(); cur != storage_.end(); ++cur) { - AllocatorTraits::destroy(storage_.alloc(), cur); - } - } - - // Assignments are deleted because they break the invariant that the size of a - // `FixedArray` never changes. - void operator=(FixedArray&&) = delete; - void operator=(const FixedArray&) = delete; - - // FixedArray::size() - // - // Returns the length of the fixed array. - size_type size() const { return storage_.size(); } - - // FixedArray::max_size() - // - // Returns the largest possible value of `std::distance(begin(), end())` for a - // `FixedArray`. This is equivalent to the most possible addressable bytes - // over the number of bytes taken by T. - constexpr size_type max_size() const { - return (std::numeric_limits::max)() / sizeof(value_type); - } - - // FixedArray::empty() - // - // Returns whether or not the fixed array is empty. - bool empty() const { return size() == 0; } - - // FixedArray::memsize() - // - // Returns the memory size of the fixed array in bytes. - size_t memsize() const { return size() * sizeof(value_type); } - - // FixedArray::data() - // - // Returns a const T* pointer to elements of the `FixedArray`. This pointer - // can be used to access (but not modify) the contained elements. - const_pointer data() const { return AsValueType(storage_.begin()); } - - // Overload of FixedArray::data() to return a T* pointer to elements of the - // fixed array. This pointer can be used to access and modify the contained - // elements. - pointer data() { return AsValueType(storage_.begin()); } - - // FixedArray::operator[] - // - // Returns a reference the ith element of the fixed array. - // REQUIRES: 0 <= i < size() - reference operator[](size_type i) { - ABSL_HARDENING_ASSERT(i < size()); - return data()[i]; - } - - // Overload of FixedArray::operator()[] to return a const reference to the - // ith element of the fixed array. - // REQUIRES: 0 <= i < size() - const_reference operator[](size_type i) const { - ABSL_HARDENING_ASSERT(i < size()); - return data()[i]; - } - - // FixedArray::at - // - // Bounds-checked access. Returns a reference to the ith element of the fixed - // array, or throws std::out_of_range - reference at(size_type i) { - if (ABSL_PREDICT_FALSE(i >= size())) { - base_internal::ThrowStdOutOfRange("FixedArray::at failed bounds check"); - } - return data()[i]; - } - - // Overload of FixedArray::at() to return a const reference to the ith element - // of the fixed array. - const_reference at(size_type i) const { - if (ABSL_PREDICT_FALSE(i >= size())) { - base_internal::ThrowStdOutOfRange("FixedArray::at failed bounds check"); - } - return data()[i]; - } - - // FixedArray::front() - // - // Returns a reference to the first element of the fixed array. - reference front() { - ABSL_HARDENING_ASSERT(!empty()); - return data()[0]; - } - - // Overload of FixedArray::front() to return a reference to the first element - // of a fixed array of const values. - const_reference front() const { - ABSL_HARDENING_ASSERT(!empty()); - return data()[0]; - } - - // FixedArray::back() - // - // Returns a reference to the last element of the fixed array. - reference back() { - ABSL_HARDENING_ASSERT(!empty()); - return data()[size() - 1]; - } - - // Overload of FixedArray::back() to return a reference to the last element - // of a fixed array of const values. - const_reference back() const { - ABSL_HARDENING_ASSERT(!empty()); - return data()[size() - 1]; - } - - // FixedArray::begin() - // - // Returns an iterator to the beginning of the fixed array. - iterator begin() { return data(); } - - // Overload of FixedArray::begin() to return a const iterator to the - // beginning of the fixed array. - const_iterator begin() const { return data(); } - - // FixedArray::cbegin() - // - // Returns a const iterator to the beginning of the fixed array. - const_iterator cbegin() const { return begin(); } - - // FixedArray::end() - // - // Returns an iterator to the end of the fixed array. - iterator end() { return data() + size(); } - - // Overload of FixedArray::end() to return a const iterator to the end of the - // fixed array. - const_iterator end() const { return data() + size(); } - - // FixedArray::cend() - // - // Returns a const iterator to the end of the fixed array. - const_iterator cend() const { return end(); } - - // FixedArray::rbegin() - // - // Returns a reverse iterator from the end of the fixed array. - reverse_iterator rbegin() { return reverse_iterator(end()); } - - // Overload of FixedArray::rbegin() to return a const reverse iterator from - // the end of the fixed array. - const_reverse_iterator rbegin() const { - return const_reverse_iterator(end()); - } - - // FixedArray::crbegin() - // - // Returns a const reverse iterator from the end of the fixed array. - const_reverse_iterator crbegin() const { return rbegin(); } - - // FixedArray::rend() - // - // Returns a reverse iterator from the beginning of the fixed array. - reverse_iterator rend() { return reverse_iterator(begin()); } - - // Overload of FixedArray::rend() for returning a const reverse iterator - // from the beginning of the fixed array. - const_reverse_iterator rend() const { - return const_reverse_iterator(begin()); - } - - // FixedArray::crend() - // - // Returns a reverse iterator from the beginning of the fixed array. - const_reverse_iterator crend() const { return rend(); } - - // FixedArray::fill() - // - // Assigns the given `value` to all elements in the fixed array. - void fill(const value_type& val) { std::fill(begin(), end(), val); } - - // Relational operators. Equality operators are elementwise using - // `operator==`, while order operators order FixedArrays lexicographically. - friend bool operator==(const FixedArray& lhs, const FixedArray& rhs) { - return absl::equal(lhs.begin(), lhs.end(), rhs.begin(), rhs.end()); - } - - friend bool operator!=(const FixedArray& lhs, const FixedArray& rhs) { - return !(lhs == rhs); - } - - friend bool operator<(const FixedArray& lhs, const FixedArray& rhs) { - return std::lexicographical_compare(lhs.begin(), lhs.end(), rhs.begin(), - rhs.end()); - } - - friend bool operator>(const FixedArray& lhs, const FixedArray& rhs) { - return rhs < lhs; - } - - friend bool operator<=(const FixedArray& lhs, const FixedArray& rhs) { - return !(rhs < lhs); - } - - friend bool operator>=(const FixedArray& lhs, const FixedArray& rhs) { - return !(lhs < rhs); - } - - template - friend H AbslHashValue(H h, const FixedArray& v) { - return H::combine(H::combine_contiguous(std::move(h), v.data(), v.size()), - v.size()); - } - - private: - // StorageElement - // - // For FixedArrays with a C-style-array value_type, StorageElement is a POD - // wrapper struct called StorageElementWrapper that holds the value_type - // instance inside. This is needed for construction and destruction of the - // entire array regardless of how many dimensions it has. For all other cases, - // StorageElement is just an alias of value_type. - // - // Maintainer's Note: The simpler solution would be to simply wrap value_type - // in a struct whether it's an array or not. That causes some paranoid - // diagnostics to misfire, believing that 'data()' returns a pointer to a - // single element, rather than the packed array that it really is. - // e.g.: - // - // FixedArray buf(1); - // sprintf(buf.data(), "foo"); - // - // error: call to int __builtin___sprintf_chk(etc...) - // will always overflow destination buffer [-Werror] - // - template , - size_t InnerN = std::extent::value> - struct StorageElementWrapper { - InnerT array[InnerN]; - }; - - using StorageElement = - absl::conditional_t::value, - StorageElementWrapper, value_type>; - - static pointer AsValueType(pointer ptr) { return ptr; } - static pointer AsValueType(StorageElementWrapper* ptr) { - return std::addressof(ptr->array); - } - - static_assert(sizeof(StorageElement) == sizeof(value_type), ""); - static_assert(alignof(StorageElement) == alignof(value_type), ""); - - class NonEmptyInlinedStorage { - public: - StorageElement* data() { return reinterpret_cast(buff_); } - void AnnotateConstruct(size_type n); - void AnnotateDestruct(size_type n); - -#ifdef ABSL_HAVE_ADDRESS_SANITIZER - void* RedzoneBegin() { return &redzone_begin_; } - void* RedzoneEnd() { return &redzone_end_ + 1; } -#endif // ABSL_HAVE_ADDRESS_SANITIZER - - private: - ABSL_ADDRESS_SANITIZER_REDZONE(redzone_begin_); - alignas(StorageElement) char buff_[sizeof(StorageElement[inline_elements])]; - ABSL_ADDRESS_SANITIZER_REDZONE(redzone_end_); - }; - - class EmptyInlinedStorage { - public: - StorageElement* data() { return nullptr; } - void AnnotateConstruct(size_type) {} - void AnnotateDestruct(size_type) {} - }; - - using InlinedStorage = - absl::conditional_t; - - // Storage - // - // An instance of Storage manages the inline and out-of-line memory for - // instances of FixedArray. This guarantees that even when construction of - // individual elements fails in the FixedArray constructor body, the - // destructor for Storage will still be called and out-of-line memory will be - // properly deallocated. - // - class Storage : public InlinedStorage { - public: - Storage(size_type n, const allocator_type& a) - : size_alloc_(n, a), data_(InitializeData()) {} - - ~Storage() noexcept { - if (UsingInlinedStorage(size())) { - InlinedStorage::AnnotateDestruct(size()); - } else { - AllocatorTraits::deallocate(alloc(), AsValueType(begin()), size()); - } - } - - size_type size() const { return size_alloc_.template get<0>(); } - StorageElement* begin() const { return data_; } - StorageElement* end() const { return begin() + size(); } - allocator_type& alloc() { return size_alloc_.template get<1>(); } - - private: - static bool UsingInlinedStorage(size_type n) { - return n <= inline_elements; - } - -#ifdef ABSL_HAVE_ADDRESS_SANITIZER - ABSL_ATTRIBUTE_NOINLINE -#endif // ABSL_HAVE_ADDRESS_SANITIZER - StorageElement* InitializeData() { - if (UsingInlinedStorage(size())) { - InlinedStorage::AnnotateConstruct(size()); - return InlinedStorage::data(); - } else { - return reinterpret_cast( - AllocatorTraits::allocate(alloc(), size())); - } - } - - // `CompressedTuple` takes advantage of EBCO for stateless `allocator_type`s - container_internal::CompressedTuple size_alloc_; - StorageElement* data_; - }; - - Storage storage_; -}; - -#ifdef ABSL_INTERNAL_NEED_REDUNDANT_CONSTEXPR_DECL -template -constexpr size_t FixedArray::kInlineBytesDefault; - -template -constexpr typename FixedArray::size_type - FixedArray::inline_elements; -#endif - -template -void FixedArray::NonEmptyInlinedStorage::AnnotateConstruct( - typename FixedArray::size_type n) { -#ifdef ABSL_HAVE_ADDRESS_SANITIZER - if (!n) return; - ABSL_ANNOTATE_CONTIGUOUS_CONTAINER(data(), RedzoneEnd(), RedzoneEnd(), - data() + n); - ABSL_ANNOTATE_CONTIGUOUS_CONTAINER(RedzoneBegin(), data(), data(), - RedzoneBegin()); -#endif // ABSL_HAVE_ADDRESS_SANITIZER - static_cast(n); // Mark used when not in asan mode -} - -template -void FixedArray::NonEmptyInlinedStorage::AnnotateDestruct( - typename FixedArray::size_type n) { -#ifdef ABSL_HAVE_ADDRESS_SANITIZER - if (!n) return; - ABSL_ANNOTATE_CONTIGUOUS_CONTAINER(data(), RedzoneEnd(), data() + n, - RedzoneEnd()); - ABSL_ANNOTATE_CONTIGUOUS_CONTAINER(RedzoneBegin(), data(), RedzoneBegin(), - data()); -#endif // ABSL_HAVE_ADDRESS_SANITIZER - static_cast(n); // Mark used when not in asan mode -} -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_CONTAINER_FIXED_ARRAY_H_ diff --git a/src/third_party/abseil-cpp/absl/container/fixed_array_benchmark.cc b/src/third_party/abseil-cpp/absl/container/fixed_array_benchmark.cc deleted file mode 100644 index db6663e60d..0000000000 --- a/src/third_party/abseil-cpp/absl/container/fixed_array_benchmark.cc +++ /dev/null @@ -1,67 +0,0 @@ -// Copyright 2019 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include - -#include - -#include "absl/container/fixed_array.h" -#include "benchmark/benchmark.h" - -namespace { - -// For benchmarking -- simple class with constructor and destructor that -// set an int to a constant.. -class SimpleClass { - public: - SimpleClass() : i(3) {} - ~SimpleClass() { i = 0; } - - private: - int i; -}; - -template -void BM_FixedArray(benchmark::State& state) { - const int size = state.range(0); - for (auto _ : state) { - absl::FixedArray fa(size); - benchmark::DoNotOptimize(fa.data()); - } -} -BENCHMARK_TEMPLATE(BM_FixedArray, char, absl::kFixedArrayUseDefault) - ->Range(0, 1 << 16); -BENCHMARK_TEMPLATE(BM_FixedArray, char, 0)->Range(0, 1 << 16); -BENCHMARK_TEMPLATE(BM_FixedArray, char, 1)->Range(0, 1 << 16); -BENCHMARK_TEMPLATE(BM_FixedArray, char, 16)->Range(0, 1 << 16); -BENCHMARK_TEMPLATE(BM_FixedArray, char, 256)->Range(0, 1 << 16); -BENCHMARK_TEMPLATE(BM_FixedArray, char, 65536)->Range(0, 1 << 16); - -BENCHMARK_TEMPLATE(BM_FixedArray, SimpleClass, absl::kFixedArrayUseDefault) - ->Range(0, 1 << 16); -BENCHMARK_TEMPLATE(BM_FixedArray, SimpleClass, 0)->Range(0, 1 << 16); -BENCHMARK_TEMPLATE(BM_FixedArray, SimpleClass, 1)->Range(0, 1 << 16); -BENCHMARK_TEMPLATE(BM_FixedArray, SimpleClass, 16)->Range(0, 1 << 16); -BENCHMARK_TEMPLATE(BM_FixedArray, SimpleClass, 256)->Range(0, 1 << 16); -BENCHMARK_TEMPLATE(BM_FixedArray, SimpleClass, 65536)->Range(0, 1 << 16); - -BENCHMARK_TEMPLATE(BM_FixedArray, std::string, absl::kFixedArrayUseDefault) - ->Range(0, 1 << 16); -BENCHMARK_TEMPLATE(BM_FixedArray, std::string, 0)->Range(0, 1 << 16); -BENCHMARK_TEMPLATE(BM_FixedArray, std::string, 1)->Range(0, 1 << 16); -BENCHMARK_TEMPLATE(BM_FixedArray, std::string, 16)->Range(0, 1 << 16); -BENCHMARK_TEMPLATE(BM_FixedArray, std::string, 256)->Range(0, 1 << 16); -BENCHMARK_TEMPLATE(BM_FixedArray, std::string, 65536)->Range(0, 1 << 16); - -} // namespace diff --git a/src/third_party/abseil-cpp/absl/container/fixed_array_exception_safety_test.cc b/src/third_party/abseil-cpp/absl/container/fixed_array_exception_safety_test.cc deleted file mode 100644 index e5f59299b3..0000000000 --- a/src/third_party/abseil-cpp/absl/container/fixed_array_exception_safety_test.cc +++ /dev/null @@ -1,201 +0,0 @@ -// Copyright 2019 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/base/config.h" -#include "absl/container/fixed_array.h" - -#ifdef ABSL_HAVE_EXCEPTIONS - -#include - -#include "gtest/gtest.h" -#include "absl/base/internal/exception_safety_testing.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN - -namespace { - -constexpr size_t kInlined = 25; -constexpr size_t kSmallSize = kInlined / 2; -constexpr size_t kLargeSize = kInlined * 2; - -constexpr int kInitialValue = 5; -constexpr int kUpdatedValue = 10; - -using ::testing::TestThrowingCtor; - -using Thrower = testing::ThrowingValue; -using ThrowAlloc = - testing::ThrowingAllocator; -using MoveThrower = testing::ThrowingValue; -using MoveThrowAlloc = - testing::ThrowingAllocator; - -using FixedArr = absl::FixedArray; -using FixedArrWithAlloc = absl::FixedArray; - -using MoveFixedArr = absl::FixedArray; -using MoveFixedArrWithAlloc = - absl::FixedArray; - -TEST(FixedArrayExceptionSafety, CopyConstructor) { - auto small = FixedArr(kSmallSize); - TestThrowingCtor(small); - - auto large = FixedArr(kLargeSize); - TestThrowingCtor(large); -} - -TEST(FixedArrayExceptionSafety, CopyConstructorWithAlloc) { - auto small = FixedArrWithAlloc(kSmallSize); - TestThrowingCtor(small); - - auto large = FixedArrWithAlloc(kLargeSize); - TestThrowingCtor(large); -} - -TEST(FixedArrayExceptionSafety, MoveConstructor) { - TestThrowingCtor(FixedArr(kSmallSize)); - TestThrowingCtor(FixedArr(kLargeSize)); - - // TypeSpec::kNoThrowMove - TestThrowingCtor(MoveFixedArr(kSmallSize)); - TestThrowingCtor(MoveFixedArr(kLargeSize)); -} - -TEST(FixedArrayExceptionSafety, MoveConstructorWithAlloc) { - TestThrowingCtor(FixedArrWithAlloc(kSmallSize)); - TestThrowingCtor(FixedArrWithAlloc(kLargeSize)); - - // TypeSpec::kNoThrowMove - TestThrowingCtor(MoveFixedArrWithAlloc(kSmallSize)); - TestThrowingCtor(MoveFixedArrWithAlloc(kLargeSize)); -} - -TEST(FixedArrayExceptionSafety, SizeConstructor) { - TestThrowingCtor(kSmallSize); - TestThrowingCtor(kLargeSize); -} - -TEST(FixedArrayExceptionSafety, SizeConstructorWithAlloc) { - TestThrowingCtor(kSmallSize); - TestThrowingCtor(kLargeSize); -} - -TEST(FixedArrayExceptionSafety, SizeValueConstructor) { - TestThrowingCtor(kSmallSize, Thrower()); - TestThrowingCtor(kLargeSize, Thrower()); -} - -TEST(FixedArrayExceptionSafety, SizeValueConstructorWithAlloc) { - TestThrowingCtor(kSmallSize, Thrower()); - TestThrowingCtor(kLargeSize, Thrower()); -} - -TEST(FixedArrayExceptionSafety, IteratorConstructor) { - auto small = FixedArr(kSmallSize); - TestThrowingCtor(small.begin(), small.end()); - - auto large = FixedArr(kLargeSize); - TestThrowingCtor(large.begin(), large.end()); -} - -TEST(FixedArrayExceptionSafety, IteratorConstructorWithAlloc) { - auto small = FixedArrWithAlloc(kSmallSize); - TestThrowingCtor(small.begin(), small.end()); - - auto large = FixedArrWithAlloc(kLargeSize); - TestThrowingCtor(large.begin(), large.end()); -} - -TEST(FixedArrayExceptionSafety, InitListConstructor) { - constexpr int small_inlined = 3; - using SmallFixedArr = absl::FixedArray; - - TestThrowingCtor(std::initializer_list{}); - // Test inlined allocation - TestThrowingCtor( - std::initializer_list{Thrower{}, Thrower{}}); - // Test out of line allocation - TestThrowingCtor(std::initializer_list{ - Thrower{}, Thrower{}, Thrower{}, Thrower{}, Thrower{}}); -} - -TEST(FixedArrayExceptionSafety, InitListConstructorWithAlloc) { - constexpr int small_inlined = 3; - using SmallFixedArrWithAlloc = - absl::FixedArray; - - TestThrowingCtor(std::initializer_list{}); - // Test inlined allocation - TestThrowingCtor( - std::initializer_list{Thrower{}, Thrower{}}); - // Test out of line allocation - TestThrowingCtor(std::initializer_list{ - Thrower{}, Thrower{}, Thrower{}, Thrower{}, Thrower{}}); -} - -template -testing::AssertionResult ReadMemory(FixedArrT* fixed_arr) { - int sum = 0; - for (const auto& thrower : *fixed_arr) { - sum += thrower.Get(); - } - return testing::AssertionSuccess() << "Values sum to [" << sum << "]"; -} - -TEST(FixedArrayExceptionSafety, Fill) { - auto test_fill = testing::MakeExceptionSafetyTester() - .WithContracts(ReadMemory) - .WithOperation([&](FixedArr* fixed_arr_ptr) { - auto thrower = - Thrower(kUpdatedValue, testing::nothrow_ctor); - fixed_arr_ptr->fill(thrower); - }); - - EXPECT_TRUE( - test_fill.WithInitialValue(FixedArr(kSmallSize, Thrower(kInitialValue))) - .Test()); - EXPECT_TRUE( - test_fill.WithInitialValue(FixedArr(kLargeSize, Thrower(kInitialValue))) - .Test()); -} - -TEST(FixedArrayExceptionSafety, FillWithAlloc) { - auto test_fill = testing::MakeExceptionSafetyTester() - .WithContracts(ReadMemory) - .WithOperation([&](FixedArrWithAlloc* fixed_arr_ptr) { - auto thrower = - Thrower(kUpdatedValue, testing::nothrow_ctor); - fixed_arr_ptr->fill(thrower); - }); - - EXPECT_TRUE(test_fill - .WithInitialValue( - FixedArrWithAlloc(kSmallSize, Thrower(kInitialValue))) - .Test()); - EXPECT_TRUE(test_fill - .WithInitialValue( - FixedArrWithAlloc(kLargeSize, Thrower(kInitialValue))) - .Test()); -} - -} // namespace - -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_HAVE_EXCEPTIONS diff --git a/src/third_party/abseil-cpp/absl/container/fixed_array_test.cc b/src/third_party/abseil-cpp/absl/container/fixed_array_test.cc deleted file mode 100644 index 49598e7a05..0000000000 --- a/src/third_party/abseil-cpp/absl/container/fixed_array_test.cc +++ /dev/null @@ -1,837 +0,0 @@ -// Copyright 2019 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/container/fixed_array.h" - -#include - -#include -#include -#include -#include -#include -#include -#include -#include - -#include "gmock/gmock.h" -#include "gtest/gtest.h" -#include "absl/base/config.h" -#include "absl/base/internal/exception_testing.h" -#include "absl/base/options.h" -#include "absl/container/internal/counting_allocator.h" -#include "absl/hash/hash_testing.h" -#include "absl/memory/memory.h" - -using ::testing::ElementsAreArray; - -namespace { - -// Helper routine to determine if a absl::FixedArray used stack allocation. -template -static bool IsOnStack(const ArrayType& a) { - return a.size() <= ArrayType::inline_elements; -} - -class ConstructionTester { - public: - ConstructionTester() : self_ptr_(this), value_(0) { constructions++; } - ~ConstructionTester() { - assert(self_ptr_ == this); - self_ptr_ = nullptr; - destructions++; - } - - // These are incremented as elements are constructed and destructed so we can - // be sure all elements are properly cleaned up. - static int constructions; - static int destructions; - - void CheckConstructed() { assert(self_ptr_ == this); } - - void set(int value) { value_ = value; } - int get() { return value_; } - - private: - // self_ptr_ should always point to 'this' -- that's how we can be sure the - // constructor has been called. - ConstructionTester* self_ptr_; - int value_; -}; - -int ConstructionTester::constructions = 0; -int ConstructionTester::destructions = 0; - -// ThreeInts will initialize its three ints to the value stored in -// ThreeInts::counter. The constructor increments counter so that each object -// in an array of ThreeInts will have different values. -class ThreeInts { - public: - ThreeInts() { - x_ = counter; - y_ = counter; - z_ = counter; - ++counter; - } - - static int counter; - - int x_, y_, z_; -}; - -int ThreeInts::counter = 0; - -TEST(FixedArrayTest, CopyCtor) { - absl::FixedArray on_stack(5); - std::iota(on_stack.begin(), on_stack.end(), 0); - absl::FixedArray stack_copy = on_stack; - EXPECT_THAT(stack_copy, ElementsAreArray(on_stack)); - EXPECT_TRUE(IsOnStack(stack_copy)); - - absl::FixedArray allocated(15); - std::iota(allocated.begin(), allocated.end(), 0); - absl::FixedArray alloced_copy = allocated; - EXPECT_THAT(alloced_copy, ElementsAreArray(allocated)); - EXPECT_FALSE(IsOnStack(alloced_copy)); -} - -TEST(FixedArrayTest, MoveCtor) { - absl::FixedArray, 10> on_stack(5); - for (int i = 0; i < 5; ++i) { - on_stack[i] = absl::make_unique(i); - } - - absl::FixedArray, 10> stack_copy = std::move(on_stack); - for (int i = 0; i < 5; ++i) EXPECT_EQ(*(stack_copy[i]), i); - EXPECT_EQ(stack_copy.size(), on_stack.size()); - - absl::FixedArray, 10> allocated(15); - for (int i = 0; i < 15; ++i) { - allocated[i] = absl::make_unique(i); - } - - absl::FixedArray, 10> alloced_copy = - std::move(allocated); - for (int i = 0; i < 15; ++i) EXPECT_EQ(*(alloced_copy[i]), i); - EXPECT_EQ(allocated.size(), alloced_copy.size()); -} - -TEST(FixedArrayTest, SmallObjects) { - // Small object arrays - { - // Short arrays should be on the stack - absl::FixedArray array(4); - EXPECT_TRUE(IsOnStack(array)); - } - - { - // Large arrays should be on the heap - absl::FixedArray array(1048576); - EXPECT_FALSE(IsOnStack(array)); - } - - { - // Arrays of <= default size should be on the stack - absl::FixedArray array(100); - EXPECT_TRUE(IsOnStack(array)); - } - - { - // Arrays of > default size should be on the heap - absl::FixedArray array(101); - EXPECT_FALSE(IsOnStack(array)); - } - - { - // Arrays with different size elements should use approximately - // same amount of stack space - absl::FixedArray array1(0); - absl::FixedArray array2(0); - EXPECT_LE(sizeof(array1), sizeof(array2) + 100); - EXPECT_LE(sizeof(array2), sizeof(array1) + 100); - } - - { - // Ensure that vectors are properly constructed inside a fixed array. - absl::FixedArray> array(2); - EXPECT_EQ(0, array[0].size()); - EXPECT_EQ(0, array[1].size()); - } - - { - // Regardless of absl::FixedArray implementation, check that a type with a - // low alignment requirement and a non power-of-two size is initialized - // correctly. - ThreeInts::counter = 1; - absl::FixedArray array(2); - EXPECT_EQ(1, array[0].x_); - EXPECT_EQ(1, array[0].y_); - EXPECT_EQ(1, array[0].z_); - EXPECT_EQ(2, array[1].x_); - EXPECT_EQ(2, array[1].y_); - EXPECT_EQ(2, array[1].z_); - } -} - -TEST(FixedArrayTest, AtThrows) { - absl::FixedArray a = {1, 2, 3}; - EXPECT_EQ(a.at(2), 3); - ABSL_BASE_INTERNAL_EXPECT_FAIL(a.at(3), std::out_of_range, - "failed bounds check"); -} - -TEST(FixedArrayTest, Hardened) { -#if !defined(NDEBUG) || ABSL_OPTION_HARDENED - absl::FixedArray a = {1, 2, 3}; - EXPECT_EQ(a[2], 3); - EXPECT_DEATH_IF_SUPPORTED(a[3], ""); - EXPECT_DEATH_IF_SUPPORTED(a[-1], ""); - - absl::FixedArray empty(0); - EXPECT_DEATH_IF_SUPPORTED(empty[0], ""); - EXPECT_DEATH_IF_SUPPORTED(empty[-1], ""); - EXPECT_DEATH_IF_SUPPORTED(empty.front(), ""); - EXPECT_DEATH_IF_SUPPORTED(empty.back(), ""); -#endif -} - -TEST(FixedArrayRelationalsTest, EqualArrays) { - for (int i = 0; i < 10; ++i) { - absl::FixedArray a1(i); - std::iota(a1.begin(), a1.end(), 0); - absl::FixedArray a2(a1.begin(), a1.end()); - - EXPECT_TRUE(a1 == a2); - EXPECT_FALSE(a1 != a2); - EXPECT_TRUE(a2 == a1); - EXPECT_FALSE(a2 != a1); - EXPECT_FALSE(a1 < a2); - EXPECT_FALSE(a1 > a2); - EXPECT_FALSE(a2 < a1); - EXPECT_FALSE(a2 > a1); - EXPECT_TRUE(a1 <= a2); - EXPECT_TRUE(a1 >= a2); - EXPECT_TRUE(a2 <= a1); - EXPECT_TRUE(a2 >= a1); - } -} - -TEST(FixedArrayRelationalsTest, UnequalArrays) { - for (int i = 1; i < 10; ++i) { - absl::FixedArray a1(i); - std::iota(a1.begin(), a1.end(), 0); - absl::FixedArray a2(a1.begin(), a1.end()); - --a2[i / 2]; - - EXPECT_FALSE(a1 == a2); - EXPECT_TRUE(a1 != a2); - EXPECT_FALSE(a2 == a1); - EXPECT_TRUE(a2 != a1); - EXPECT_FALSE(a1 < a2); - EXPECT_TRUE(a1 > a2); - EXPECT_TRUE(a2 < a1); - EXPECT_FALSE(a2 > a1); - EXPECT_FALSE(a1 <= a2); - EXPECT_TRUE(a1 >= a2); - EXPECT_TRUE(a2 <= a1); - EXPECT_FALSE(a2 >= a1); - } -} - -template -static void TestArray(int n) { - SCOPED_TRACE(n); - SCOPED_TRACE(stack_elements); - ConstructionTester::constructions = 0; - ConstructionTester::destructions = 0; - { - absl::FixedArray array(n); - - EXPECT_THAT(array.size(), n); - EXPECT_THAT(array.memsize(), sizeof(ConstructionTester) * n); - EXPECT_THAT(array.begin() + n, array.end()); - - // Check that all elements were constructed - for (int i = 0; i < n; i++) { - array[i].CheckConstructed(); - } - // Check that no other elements were constructed - EXPECT_THAT(ConstructionTester::constructions, n); - - // Test operator[] - for (int i = 0; i < n; i++) { - array[i].set(i); - } - for (int i = 0; i < n; i++) { - EXPECT_THAT(array[i].get(), i); - EXPECT_THAT(array.data()[i].get(), i); - } - - // Test data() - for (int i = 0; i < n; i++) { - array.data()[i].set(i + 1); - } - for (int i = 0; i < n; i++) { - EXPECT_THAT(array[i].get(), i + 1); - EXPECT_THAT(array.data()[i].get(), i + 1); - } - } // Close scope containing 'array'. - - // Check that all constructed elements were destructed. - EXPECT_EQ(ConstructionTester::constructions, - ConstructionTester::destructions); -} - -template -static void TestArrayOfArrays(int n) { - SCOPED_TRACE(n); - SCOPED_TRACE(inline_elements); - SCOPED_TRACE(elements_per_inner_array); - ConstructionTester::constructions = 0; - ConstructionTester::destructions = 0; - { - using InnerArray = ConstructionTester[elements_per_inner_array]; - // Heap-allocate the FixedArray to avoid blowing the stack frame. - auto array_ptr = - absl::make_unique>(n); - auto& array = *array_ptr; - - ASSERT_EQ(array.size(), n); - ASSERT_EQ(array.memsize(), - sizeof(ConstructionTester) * elements_per_inner_array * n); - ASSERT_EQ(array.begin() + n, array.end()); - - // Check that all elements were constructed - for (int i = 0; i < n; i++) { - for (int j = 0; j < elements_per_inner_array; j++) { - (array[i])[j].CheckConstructed(); - } - } - // Check that no other elements were constructed - ASSERT_EQ(ConstructionTester::constructions, n * elements_per_inner_array); - - // Test operator[] - for (int i = 0; i < n; i++) { - for (int j = 0; j < elements_per_inner_array; j++) { - (array[i])[j].set(i * elements_per_inner_array + j); - } - } - for (int i = 0; i < n; i++) { - for (int j = 0; j < elements_per_inner_array; j++) { - ASSERT_EQ((array[i])[j].get(), i * elements_per_inner_array + j); - ASSERT_EQ((array.data()[i])[j].get(), i * elements_per_inner_array + j); - } - } - - // Test data() - for (int i = 0; i < n; i++) { - for (int j = 0; j < elements_per_inner_array; j++) { - (array.data()[i])[j].set((i + 1) * elements_per_inner_array + j); - } - } - for (int i = 0; i < n; i++) { - for (int j = 0; j < elements_per_inner_array; j++) { - ASSERT_EQ((array[i])[j].get(), (i + 1) * elements_per_inner_array + j); - ASSERT_EQ((array.data()[i])[j].get(), - (i + 1) * elements_per_inner_array + j); - } - } - } // Close scope containing 'array'. - - // Check that all constructed elements were destructed. - EXPECT_EQ(ConstructionTester::constructions, - ConstructionTester::destructions); -} - -TEST(IteratorConstructorTest, NonInline) { - int const kInput[] = {2, 3, 5, 7, 11, 13, 17}; - absl::FixedArray const fixed( - kInput, kInput + ABSL_ARRAYSIZE(kInput)); - ASSERT_EQ(ABSL_ARRAYSIZE(kInput), fixed.size()); - for (size_t i = 0; i < ABSL_ARRAYSIZE(kInput); ++i) { - ASSERT_EQ(kInput[i], fixed[i]); - } -} - -TEST(IteratorConstructorTest, Inline) { - int const kInput[] = {2, 3, 5, 7, 11, 13, 17}; - absl::FixedArray const fixed( - kInput, kInput + ABSL_ARRAYSIZE(kInput)); - ASSERT_EQ(ABSL_ARRAYSIZE(kInput), fixed.size()); - for (size_t i = 0; i < ABSL_ARRAYSIZE(kInput); ++i) { - ASSERT_EQ(kInput[i], fixed[i]); - } -} - -TEST(IteratorConstructorTest, NonPod) { - char const* kInput[] = {"red", "orange", "yellow", "green", - "blue", "indigo", "violet"}; - absl::FixedArray const fixed(kInput, - kInput + ABSL_ARRAYSIZE(kInput)); - ASSERT_EQ(ABSL_ARRAYSIZE(kInput), fixed.size()); - for (size_t i = 0; i < ABSL_ARRAYSIZE(kInput); ++i) { - ASSERT_EQ(kInput[i], fixed[i]); - } -} - -TEST(IteratorConstructorTest, FromEmptyVector) { - std::vector const empty; - absl::FixedArray const fixed(empty.begin(), empty.end()); - EXPECT_EQ(0, fixed.size()); - EXPECT_EQ(empty.size(), fixed.size()); -} - -TEST(IteratorConstructorTest, FromNonEmptyVector) { - int const kInput[] = {2, 3, 5, 7, 11, 13, 17}; - std::vector const items(kInput, kInput + ABSL_ARRAYSIZE(kInput)); - absl::FixedArray const fixed(items.begin(), items.end()); - ASSERT_EQ(items.size(), fixed.size()); - for (size_t i = 0; i < items.size(); ++i) { - ASSERT_EQ(items[i], fixed[i]); - } -} - -TEST(IteratorConstructorTest, FromBidirectionalIteratorRange) { - int const kInput[] = {2, 3, 5, 7, 11, 13, 17}; - std::list const items(kInput, kInput + ABSL_ARRAYSIZE(kInput)); - absl::FixedArray const fixed(items.begin(), items.end()); - EXPECT_THAT(fixed, testing::ElementsAreArray(kInput)); -} - -TEST(InitListConstructorTest, InitListConstruction) { - absl::FixedArray fixed = {1, 2, 3}; - EXPECT_THAT(fixed, testing::ElementsAreArray({1, 2, 3})); -} - -TEST(FillConstructorTest, NonEmptyArrays) { - absl::FixedArray stack_array(4, 1); - EXPECT_THAT(stack_array, testing::ElementsAreArray({1, 1, 1, 1})); - - absl::FixedArray heap_array(4, 1); - EXPECT_THAT(stack_array, testing::ElementsAreArray({1, 1, 1, 1})); -} - -TEST(FillConstructorTest, EmptyArray) { - absl::FixedArray empty_fill(0, 1); - absl::FixedArray empty_size(0); - EXPECT_EQ(empty_fill, empty_size); -} - -TEST(FillConstructorTest, NotTriviallyCopyable) { - std::string str = "abcd"; - absl::FixedArray strings = {str, str, str, str}; - - absl::FixedArray array(4, str); - EXPECT_EQ(array, strings); -} - -TEST(FillConstructorTest, Disambiguation) { - absl::FixedArray a(1, 2); - EXPECT_THAT(a, testing::ElementsAre(2)); -} - -TEST(FixedArrayTest, ManySizedArrays) { - std::vector sizes; - for (int i = 1; i < 100; i++) sizes.push_back(i); - for (int i = 100; i <= 1000; i += 100) sizes.push_back(i); - for (int n : sizes) { - TestArray<0>(n); - TestArray<1>(n); - TestArray<64>(n); - TestArray<1000>(n); - } -} - -TEST(FixedArrayTest, ManySizedArraysOfArraysOf1) { - for (int n = 1; n < 1000; n++) { - ASSERT_NO_FATAL_FAILURE((TestArrayOfArrays<1, 0>(n))); - ASSERT_NO_FATAL_FAILURE((TestArrayOfArrays<1, 1>(n))); - ASSERT_NO_FATAL_FAILURE((TestArrayOfArrays<1, 64>(n))); - ASSERT_NO_FATAL_FAILURE((TestArrayOfArrays<1, 1000>(n))); - } -} - -TEST(FixedArrayTest, ManySizedArraysOfArraysOf2) { - for (int n = 1; n < 1000; n++) { - TestArrayOfArrays<2, 0>(n); - TestArrayOfArrays<2, 1>(n); - TestArrayOfArrays<2, 64>(n); - TestArrayOfArrays<2, 1000>(n); - } -} - -// If value_type is put inside of a struct container, -// we might evoke this error in a hardened build unless data() is carefully -// written, so check on that. -// error: call to int __builtin___sprintf_chk(etc...) -// will always overflow destination buffer [-Werror] -TEST(FixedArrayTest, AvoidParanoidDiagnostics) { - absl::FixedArray buf(32); - sprintf(buf.data(), "foo"); // NOLINT(runtime/printf) -} - -TEST(FixedArrayTest, TooBigInlinedSpace) { - struct TooBig { - char c[1 << 20]; - }; // too big for even one on the stack - - // Simulate the data members of absl::FixedArray, a pointer and a size_t. - struct Data { - TooBig* p; - size_t size; - }; - - // Make sure TooBig objects are not inlined for 0 or default size. - static_assert(sizeof(absl::FixedArray) == sizeof(Data), - "0-sized absl::FixedArray should have same size as Data."); - static_assert(alignof(absl::FixedArray) == alignof(Data), - "0-sized absl::FixedArray should have same alignment as Data."); - static_assert(sizeof(absl::FixedArray) == sizeof(Data), - "default-sized absl::FixedArray should have same size as Data"); - static_assert( - alignof(absl::FixedArray) == alignof(Data), - "default-sized absl::FixedArray should have same alignment as Data."); -} - -// PickyDelete EXPECTs its class-scope deallocation funcs are unused. -struct PickyDelete { - PickyDelete() {} - ~PickyDelete() {} - void operator delete(void* p) { - EXPECT_TRUE(false) << __FUNCTION__; - ::operator delete(p); - } - void operator delete[](void* p) { - EXPECT_TRUE(false) << __FUNCTION__; - ::operator delete[](p); - } -}; - -TEST(FixedArrayTest, UsesGlobalAlloc) { absl::FixedArray a(5); } - -TEST(FixedArrayTest, Data) { - static const int kInput[] = {2, 3, 5, 7, 11, 13, 17}; - absl::FixedArray fa(std::begin(kInput), std::end(kInput)); - EXPECT_EQ(fa.data(), &*fa.begin()); - EXPECT_EQ(fa.data(), &fa[0]); - - const absl::FixedArray& cfa = fa; - EXPECT_EQ(cfa.data(), &*cfa.begin()); - EXPECT_EQ(cfa.data(), &cfa[0]); -} - -TEST(FixedArrayTest, Empty) { - absl::FixedArray empty(0); - absl::FixedArray inline_filled(1); - absl::FixedArray heap_filled(1); - EXPECT_TRUE(empty.empty()); - EXPECT_FALSE(inline_filled.empty()); - EXPECT_FALSE(heap_filled.empty()); -} - -TEST(FixedArrayTest, FrontAndBack) { - absl::FixedArray inlined = {1, 2, 3}; - EXPECT_EQ(inlined.front(), 1); - EXPECT_EQ(inlined.back(), 3); - - absl::FixedArray allocated = {1, 2, 3}; - EXPECT_EQ(allocated.front(), 1); - EXPECT_EQ(allocated.back(), 3); - - absl::FixedArray one_element = {1}; - EXPECT_EQ(one_element.front(), one_element.back()); -} - -TEST(FixedArrayTest, ReverseIteratorInlined) { - absl::FixedArray a = {0, 1, 2, 3, 4}; - - int counter = 5; - for (absl::FixedArray::reverse_iterator iter = a.rbegin(); - iter != a.rend(); ++iter) { - counter--; - EXPECT_EQ(counter, *iter); - } - EXPECT_EQ(counter, 0); - - counter = 5; - for (absl::FixedArray::const_reverse_iterator iter = a.rbegin(); - iter != a.rend(); ++iter) { - counter--; - EXPECT_EQ(counter, *iter); - } - EXPECT_EQ(counter, 0); - - counter = 5; - for (auto iter = a.crbegin(); iter != a.crend(); ++iter) { - counter--; - EXPECT_EQ(counter, *iter); - } - EXPECT_EQ(counter, 0); -} - -TEST(FixedArrayTest, ReverseIteratorAllocated) { - absl::FixedArray a = {0, 1, 2, 3, 4}; - - int counter = 5; - for (absl::FixedArray::reverse_iterator iter = a.rbegin(); - iter != a.rend(); ++iter) { - counter--; - EXPECT_EQ(counter, *iter); - } - EXPECT_EQ(counter, 0); - - counter = 5; - for (absl::FixedArray::const_reverse_iterator iter = a.rbegin(); - iter != a.rend(); ++iter) { - counter--; - EXPECT_EQ(counter, *iter); - } - EXPECT_EQ(counter, 0); - - counter = 5; - for (auto iter = a.crbegin(); iter != a.crend(); ++iter) { - counter--; - EXPECT_EQ(counter, *iter); - } - EXPECT_EQ(counter, 0); -} - -TEST(FixedArrayTest, Fill) { - absl::FixedArray inlined(5); - int fill_val = 42; - inlined.fill(fill_val); - for (int i : inlined) EXPECT_EQ(i, fill_val); - - absl::FixedArray allocated(5); - allocated.fill(fill_val); - for (int i : allocated) EXPECT_EQ(i, fill_val); - - // It doesn't do anything, just make sure this compiles. - absl::FixedArray empty(0); - empty.fill(fill_val); -} - -#ifndef __GNUC__ -TEST(FixedArrayTest, DefaultCtorDoesNotValueInit) { - using T = char; - constexpr auto capacity = 10; - using FixedArrType = absl::FixedArray; - constexpr auto scrubbed_bits = 0x95; - constexpr auto length = capacity / 2; - - alignas(FixedArrType) unsigned char buff[sizeof(FixedArrType)]; - std::memset(std::addressof(buff), scrubbed_bits, sizeof(FixedArrType)); - - FixedArrType* arr = - ::new (static_cast(std::addressof(buff))) FixedArrType(length); - EXPECT_THAT(*arr, testing::Each(scrubbed_bits)); - arr->~FixedArrType(); -} -#endif // __GNUC__ - -TEST(AllocatorSupportTest, CountInlineAllocations) { - constexpr size_t inlined_size = 4; - using Alloc = absl::container_internal::CountingAllocator; - using AllocFxdArr = absl::FixedArray; - - int64_t allocated = 0; - int64_t active_instances = 0; - - { - const int ia[] = {0, 1, 2, 3, 4, 5, 6, 7}; - - Alloc alloc(&allocated, &active_instances); - - AllocFxdArr arr(ia, ia + inlined_size, alloc); - static_cast(arr); - } - - EXPECT_EQ(allocated, 0); - EXPECT_EQ(active_instances, 0); -} - -TEST(AllocatorSupportTest, CountOutoflineAllocations) { - constexpr size_t inlined_size = 4; - using Alloc = absl::container_internal::CountingAllocator; - using AllocFxdArr = absl::FixedArray; - - int64_t allocated = 0; - int64_t active_instances = 0; - - { - const int ia[] = {0, 1, 2, 3, 4, 5, 6, 7}; - Alloc alloc(&allocated, &active_instances); - - AllocFxdArr arr(ia, ia + ABSL_ARRAYSIZE(ia), alloc); - - EXPECT_EQ(allocated, arr.size() * sizeof(int)); - static_cast(arr); - } - - EXPECT_EQ(active_instances, 0); -} - -TEST(AllocatorSupportTest, CountCopyInlineAllocations) { - constexpr size_t inlined_size = 4; - using Alloc = absl::container_internal::CountingAllocator; - using AllocFxdArr = absl::FixedArray; - - int64_t allocated1 = 0; - int64_t allocated2 = 0; - int64_t active_instances = 0; - Alloc alloc(&allocated1, &active_instances); - Alloc alloc2(&allocated2, &active_instances); - - { - int initial_value = 1; - - AllocFxdArr arr1(inlined_size / 2, initial_value, alloc); - - EXPECT_EQ(allocated1, 0); - - AllocFxdArr arr2(arr1, alloc2); - - EXPECT_EQ(allocated2, 0); - static_cast(arr1); - static_cast(arr2); - } - - EXPECT_EQ(active_instances, 0); -} - -TEST(AllocatorSupportTest, CountCopyOutoflineAllocations) { - constexpr size_t inlined_size = 4; - using Alloc = absl::container_internal::CountingAllocator; - using AllocFxdArr = absl::FixedArray; - - int64_t allocated1 = 0; - int64_t allocated2 = 0; - int64_t active_instances = 0; - Alloc alloc(&allocated1, &active_instances); - Alloc alloc2(&allocated2, &active_instances); - - { - int initial_value = 1; - - AllocFxdArr arr1(inlined_size * 2, initial_value, alloc); - - EXPECT_EQ(allocated1, arr1.size() * sizeof(int)); - - AllocFxdArr arr2(arr1, alloc2); - - EXPECT_EQ(allocated2, inlined_size * 2 * sizeof(int)); - static_cast(arr1); - static_cast(arr2); - } - - EXPECT_EQ(active_instances, 0); -} - -TEST(AllocatorSupportTest, SizeValAllocConstructor) { - using testing::AllOf; - using testing::Each; - using testing::SizeIs; - - constexpr size_t inlined_size = 4; - using Alloc = absl::container_internal::CountingAllocator; - using AllocFxdArr = absl::FixedArray; - - { - auto len = inlined_size / 2; - auto val = 0; - int64_t allocated = 0; - AllocFxdArr arr(len, val, Alloc(&allocated)); - - EXPECT_EQ(allocated, 0); - EXPECT_THAT(arr, AllOf(SizeIs(len), Each(0))); - } - - { - auto len = inlined_size * 2; - auto val = 0; - int64_t allocated = 0; - AllocFxdArr arr(len, val, Alloc(&allocated)); - - EXPECT_EQ(allocated, len * sizeof(int)); - EXPECT_THAT(arr, AllOf(SizeIs(len), Each(0))); - } -} - -#ifdef ABSL_HAVE_ADDRESS_SANITIZER -TEST(FixedArrayTest, AddressSanitizerAnnotations1) { - absl::FixedArray a(10); - int* raw = a.data(); - raw[0] = 0; - raw[9] = 0; - EXPECT_DEATH_IF_SUPPORTED(raw[-2] = 0, "container-overflow"); - EXPECT_DEATH_IF_SUPPORTED(raw[-1] = 0, "container-overflow"); - EXPECT_DEATH_IF_SUPPORTED(raw[10] = 0, "container-overflow"); - EXPECT_DEATH_IF_SUPPORTED(raw[31] = 0, "container-overflow"); -} - -TEST(FixedArrayTest, AddressSanitizerAnnotations2) { - absl::FixedArray a(12); - char* raw = a.data(); - raw[0] = 0; - raw[11] = 0; - EXPECT_DEATH_IF_SUPPORTED(raw[-7] = 0, "container-overflow"); - EXPECT_DEATH_IF_SUPPORTED(raw[-1] = 0, "container-overflow"); - EXPECT_DEATH_IF_SUPPORTED(raw[12] = 0, "container-overflow"); - EXPECT_DEATH_IF_SUPPORTED(raw[17] = 0, "container-overflow"); -} - -TEST(FixedArrayTest, AddressSanitizerAnnotations3) { - absl::FixedArray a(20); - uint64_t* raw = a.data(); - raw[0] = 0; - raw[19] = 0; - EXPECT_DEATH_IF_SUPPORTED(raw[-1] = 0, "container-overflow"); - EXPECT_DEATH_IF_SUPPORTED(raw[20] = 0, "container-overflow"); -} - -TEST(FixedArrayTest, AddressSanitizerAnnotations4) { - absl::FixedArray a(10); - ThreeInts* raw = a.data(); - raw[0] = ThreeInts(); - raw[9] = ThreeInts(); - // Note: raw[-1] is pointing to 12 bytes before the container range. However, - // there is only a 8-byte red zone before the container range, so we only - // access the last 4 bytes of the struct to make sure it stays within the red - // zone. - EXPECT_DEATH_IF_SUPPORTED(raw[-1].z_ = 0, "container-overflow"); - EXPECT_DEATH_IF_SUPPORTED(raw[10] = ThreeInts(), "container-overflow"); - // The actual size of storage is kDefaultBytes=256, 21*12 = 252, - // so reading raw[21] should still trigger the correct warning. - EXPECT_DEATH_IF_SUPPORTED(raw[21] = ThreeInts(), "container-overflow"); -} -#endif // ABSL_HAVE_ADDRESS_SANITIZER - -TEST(FixedArrayTest, AbslHashValueWorks) { - using V = absl::FixedArray; - std::vector cases; - - // Generate a variety of vectors some of these are small enough for the inline - // space but are stored out of line. - for (int i = 0; i < 10; ++i) { - V v(i); - for (int j = 0; j < i; ++j) { - v[j] = j; - } - cases.push_back(v); - } - - EXPECT_TRUE(absl::VerifyTypeImplementsAbslHashCorrectly(cases)); -} - -} // namespace diff --git a/src/third_party/abseil-cpp/absl/container/flat_hash_map.h b/src/third_party/abseil-cpp/absl/container/flat_hash_map.h deleted file mode 100644 index e6bdbd9e4f..0000000000 --- a/src/third_party/abseil-cpp/absl/container/flat_hash_map.h +++ /dev/null @@ -1,613 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// ----------------------------------------------------------------------------- -// File: flat_hash_map.h -// ----------------------------------------------------------------------------- -// -// An `absl::flat_hash_map` is an unordered associative container of -// unique keys and associated values designed to be a more efficient replacement -// for `std::unordered_map`. Like `unordered_map`, search, insertion, and -// deletion of map elements can be done as an `O(1)` operation. However, -// `flat_hash_map` (and other unordered associative containers known as the -// collection of Abseil "Swiss tables") contain other optimizations that result -// in both memory and computation advantages. -// -// In most cases, your default choice for a hash map should be a map of type -// `flat_hash_map`. - -#ifndef ABSL_CONTAINER_FLAT_HASH_MAP_H_ -#define ABSL_CONTAINER_FLAT_HASH_MAP_H_ - -#include -#include -#include -#include - -#include "absl/algorithm/container.h" -#include "absl/base/macros.h" -#include "absl/container/internal/container_memory.h" -#include "absl/container/internal/hash_function_defaults.h" // IWYU pragma: export -#include "absl/container/internal/raw_hash_map.h" // IWYU pragma: export -#include "absl/memory/memory.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace container_internal { -template -struct FlatHashMapPolicy; -} // namespace container_internal - -// ----------------------------------------------------------------------------- -// absl::flat_hash_map -// ----------------------------------------------------------------------------- -// -// An `absl::flat_hash_map` is an unordered associative container which -// has been optimized for both speed and memory footprint in most common use -// cases. Its interface is similar to that of `std::unordered_map` with -// the following notable differences: -// -// * Requires keys that are CopyConstructible -// * Requires values that are MoveConstructible -// * Supports heterogeneous lookup, through `find()`, `operator[]()` and -// `insert()`, provided that the map is provided a compatible heterogeneous -// hashing function and equality operator. -// * Invalidates any references and pointers to elements within the table after -// `rehash()`. -// * Contains a `capacity()` member function indicating the number of element -// slots (open, deleted, and empty) within the hash map. -// * Returns `void` from the `erase(iterator)` overload. -// -// By default, `flat_hash_map` uses the `absl::Hash` hashing framework. -// All fundamental and Abseil types that support the `absl::Hash` framework have -// a compatible equality operator for comparing insertions into `flat_hash_map`. -// If your type is not yet supported by the `absl::Hash` framework, see -// absl/hash/hash.h for information on extending Abseil hashing to user-defined -// types. -// -// Using `absl::flat_hash_map` at interface boundaries in dynamically loaded -// libraries (e.g. .dll, .so) is unsupported due to way `absl::Hash` values may -// be randomized across dynamically loaded libraries. -// -// NOTE: A `flat_hash_map` stores its value types directly inside its -// implementation array to avoid memory indirection. Because a `flat_hash_map` -// is designed to move data when rehashed, map values will not retain pointer -// stability. If you require pointer stability, or if your values are large, -// consider using `absl::flat_hash_map>` instead. -// If your types are not moveable or you require pointer stability for keys, -// consider `absl::node_hash_map`. -// -// Example: -// -// // Create a flat hash map of three strings (that map to strings) -// absl::flat_hash_map ducks = -// {{"a", "huey"}, {"b", "dewey"}, {"c", "louie"}}; -// -// // Insert a new element into the flat hash map -// ducks.insert({"d", "donald"}); -// -// // Force a rehash of the flat hash map -// ducks.rehash(0); -// -// // Find the element with the key "b" -// std::string search_key = "b"; -// auto result = ducks.find(search_key); -// if (result != ducks.end()) { -// std::cout << "Result: " << result->second << std::endl; -// } -template , - class Eq = absl::container_internal::hash_default_eq, - class Allocator = std::allocator>> -class flat_hash_map : public absl::container_internal::raw_hash_map< - absl::container_internal::FlatHashMapPolicy, - Hash, Eq, Allocator> { - using Base = typename flat_hash_map::raw_hash_map; - - public: - // Constructors and Assignment Operators - // - // A flat_hash_map supports the same overload set as `std::unordered_map` - // for construction and assignment: - // - // * Default constructor - // - // // No allocation for the table's elements is made. - // absl::flat_hash_map map1; - // - // * Initializer List constructor - // - // absl::flat_hash_map map2 = - // {{1, "huey"}, {2, "dewey"}, {3, "louie"},}; - // - // * Copy constructor - // - // absl::flat_hash_map map3(map2); - // - // * Copy assignment operator - // - // // Hash functor and Comparator are copied as well - // absl::flat_hash_map map4; - // map4 = map3; - // - // * Move constructor - // - // // Move is guaranteed efficient - // absl::flat_hash_map map5(std::move(map4)); - // - // * Move assignment operator - // - // // May be efficient if allocators are compatible - // absl::flat_hash_map map6; - // map6 = std::move(map5); - // - // * Range constructor - // - // std::vector> v = {{1, "a"}, {2, "b"}}; - // absl::flat_hash_map map7(v.begin(), v.end()); - flat_hash_map() {} - using Base::Base; - - // flat_hash_map::begin() - // - // Returns an iterator to the beginning of the `flat_hash_map`. - using Base::begin; - - // flat_hash_map::cbegin() - // - // Returns a const iterator to the beginning of the `flat_hash_map`. - using Base::cbegin; - - // flat_hash_map::cend() - // - // Returns a const iterator to the end of the `flat_hash_map`. - using Base::cend; - - // flat_hash_map::end() - // - // Returns an iterator to the end of the `flat_hash_map`. - using Base::end; - - // flat_hash_map::capacity() - // - // Returns the number of element slots (assigned, deleted, and empty) - // available within the `flat_hash_map`. - // - // NOTE: this member function is particular to `absl::flat_hash_map` and is - // not provided in the `std::unordered_map` API. - using Base::capacity; - - // flat_hash_map::empty() - // - // Returns whether or not the `flat_hash_map` is empty. - using Base::empty; - - // flat_hash_map::max_size() - // - // Returns the largest theoretical possible number of elements within a - // `flat_hash_map` under current memory constraints. This value can be thought - // of the largest value of `std::distance(begin(), end())` for a - // `flat_hash_map`. - using Base::max_size; - - // flat_hash_map::size() - // - // Returns the number of elements currently within the `flat_hash_map`. - using Base::size; - - // flat_hash_map::clear() - // - // Removes all elements from the `flat_hash_map`. Invalidates any references, - // pointers, or iterators referring to contained elements. - // - // NOTE: this operation may shrink the underlying buffer. To avoid shrinking - // the underlying buffer call `erase(begin(), end())`. - using Base::clear; - - // flat_hash_map::erase() - // - // Erases elements within the `flat_hash_map`. Erasing does not trigger a - // rehash. Overloads are listed below. - // - // void erase(const_iterator pos): - // - // Erases the element at `position` of the `flat_hash_map`, returning - // `void`. - // - // NOTE: returning `void` in this case is different than that of STL - // containers in general and `std::unordered_map` in particular (which - // return an iterator to the element following the erased element). If that - // iterator is needed, simply post increment the iterator: - // - // map.erase(it++); - // - // iterator erase(const_iterator first, const_iterator last): - // - // Erases the elements in the open interval [`first`, `last`), returning an - // iterator pointing to `last`. - // - // size_type erase(const key_type& key): - // - // Erases the element with the matching key, if it exists, returning the - // number of elements erased (0 or 1). - using Base::erase; - - // flat_hash_map::insert() - // - // Inserts an element of the specified value into the `flat_hash_map`, - // returning an iterator pointing to the newly inserted element, provided that - // an element with the given key does not already exist. If rehashing occurs - // due to the insertion, all iterators are invalidated. Overloads are listed - // below. - // - // std::pair insert(const init_type& value): - // - // Inserts a value into the `flat_hash_map`. Returns a pair consisting of an - // iterator to the inserted element (or to the element that prevented the - // insertion) and a bool denoting whether the insertion took place. - // - // std::pair insert(T&& value): - // std::pair insert(init_type&& value): - // - // Inserts a moveable value into the `flat_hash_map`. Returns a pair - // consisting of an iterator to the inserted element (or to the element that - // prevented the insertion) and a bool denoting whether the insertion took - // place. - // - // iterator insert(const_iterator hint, const init_type& value): - // iterator insert(const_iterator hint, T&& value): - // iterator insert(const_iterator hint, init_type&& value); - // - // Inserts a value, using the position of `hint` as a non-binding suggestion - // for where to begin the insertion search. Returns an iterator to the - // inserted element, or to the existing element that prevented the - // insertion. - // - // void insert(InputIterator first, InputIterator last): - // - // Inserts a range of values [`first`, `last`). - // - // NOTE: Although the STL does not specify which element may be inserted if - // multiple keys compare equivalently, for `flat_hash_map` we guarantee the - // first match is inserted. - // - // void insert(std::initializer_list ilist): - // - // Inserts the elements within the initializer list `ilist`. - // - // NOTE: Although the STL does not specify which element may be inserted if - // multiple keys compare equivalently within the initializer list, for - // `flat_hash_map` we guarantee the first match is inserted. - using Base::insert; - - // flat_hash_map::insert_or_assign() - // - // Inserts an element of the specified value into the `flat_hash_map` provided - // that a value with the given key does not already exist, or replaces it with - // the element value if a key for that value already exists, returning an - // iterator pointing to the newly inserted element. If rehashing occurs due - // to the insertion, all existing iterators are invalidated. Overloads are - // listed below. - // - // pair insert_or_assign(const init_type& k, T&& obj): - // pair insert_or_assign(init_type&& k, T&& obj): - // - // Inserts/Assigns (or moves) the element of the specified key into the - // `flat_hash_map`. - // - // iterator insert_or_assign(const_iterator hint, - // const init_type& k, T&& obj): - // iterator insert_or_assign(const_iterator hint, init_type&& k, T&& obj): - // - // Inserts/Assigns (or moves) the element of the specified key into the - // `flat_hash_map` using the position of `hint` as a non-binding suggestion - // for where to begin the insertion search. - using Base::insert_or_assign; - - // flat_hash_map::emplace() - // - // Inserts an element of the specified value by constructing it in-place - // within the `flat_hash_map`, provided that no element with the given key - // already exists. - // - // The element may be constructed even if there already is an element with the - // key in the container, in which case the newly constructed element will be - // destroyed immediately. Prefer `try_emplace()` unless your key is not - // copyable or moveable. - // - // If rehashing occurs due to the insertion, all iterators are invalidated. - using Base::emplace; - - // flat_hash_map::emplace_hint() - // - // Inserts an element of the specified value by constructing it in-place - // within the `flat_hash_map`, using the position of `hint` as a non-binding - // suggestion for where to begin the insertion search, and only inserts - // provided that no element with the given key already exists. - // - // The element may be constructed even if there already is an element with the - // key in the container, in which case the newly constructed element will be - // destroyed immediately. Prefer `try_emplace()` unless your key is not - // copyable or moveable. - // - // If rehashing occurs due to the insertion, all iterators are invalidated. - using Base::emplace_hint; - - // flat_hash_map::try_emplace() - // - // Inserts an element of the specified value by constructing it in-place - // within the `flat_hash_map`, provided that no element with the given key - // already exists. Unlike `emplace()`, if an element with the given key - // already exists, we guarantee that no element is constructed. - // - // If rehashing occurs due to the insertion, all iterators are invalidated. - // Overloads are listed below. - // - // pair try_emplace(const key_type& k, Args&&... args): - // pair try_emplace(key_type&& k, Args&&... args): - // - // Inserts (via copy or move) the element of the specified key into the - // `flat_hash_map`. - // - // iterator try_emplace(const_iterator hint, - // const key_type& k, Args&&... args): - // iterator try_emplace(const_iterator hint, key_type&& k, Args&&... args): - // - // Inserts (via copy or move) the element of the specified key into the - // `flat_hash_map` using the position of `hint` as a non-binding suggestion - // for where to begin the insertion search. - // - // All `try_emplace()` overloads make the same guarantees regarding rvalue - // arguments as `std::unordered_map::try_emplace()`, namely that these - // functions will not move from rvalue arguments if insertions do not happen. - using Base::try_emplace; - - // flat_hash_map::extract() - // - // Extracts the indicated element, erasing it in the process, and returns it - // as a C++17-compatible node handle. Overloads are listed below. - // - // node_type extract(const_iterator position): - // - // Extracts the key,value pair of the element at the indicated position and - // returns a node handle owning that extracted data. - // - // node_type extract(const key_type& x): - // - // Extracts the key,value pair of the element with a key matching the passed - // key value and returns a node handle owning that extracted data. If the - // `flat_hash_map` does not contain an element with a matching key, this - // function returns an empty node handle. - // - // NOTE: when compiled in an earlier version of C++ than C++17, - // `node_type::key()` returns a const reference to the key instead of a - // mutable reference. We cannot safely return a mutable reference without - // std::launder (which is not available before C++17). - using Base::extract; - - // flat_hash_map::merge() - // - // Extracts elements from a given `source` flat hash map into this - // `flat_hash_map`. If the destination `flat_hash_map` already contains an - // element with an equivalent key, that element is not extracted. - using Base::merge; - - // flat_hash_map::swap(flat_hash_map& other) - // - // Exchanges the contents of this `flat_hash_map` with those of the `other` - // flat hash map, avoiding invocation of any move, copy, or swap operations on - // individual elements. - // - // All iterators and references on the `flat_hash_map` remain valid, excepting - // for the past-the-end iterator, which is invalidated. - // - // `swap()` requires that the flat hash map's hashing and key equivalence - // functions be Swappable, and are exchanged using unqualified calls to - // non-member `swap()`. If the map's allocator has - // `std::allocator_traits::propagate_on_container_swap::value` - // set to `true`, the allocators are also exchanged using an unqualified call - // to non-member `swap()`; otherwise, the allocators are not swapped. - using Base::swap; - - // flat_hash_map::rehash(count) - // - // Rehashes the `flat_hash_map`, setting the number of slots to be at least - // the passed value. If the new number of slots increases the load factor more - // than the current maximum load factor - // (`count` < `size()` / `max_load_factor()`), then the new number of slots - // will be at least `size()` / `max_load_factor()`. - // - // To force a rehash, pass rehash(0). - // - // NOTE: unlike behavior in `std::unordered_map`, references are also - // invalidated upon a `rehash()`. - using Base::rehash; - - // flat_hash_map::reserve(count) - // - // Sets the number of slots in the `flat_hash_map` to the number needed to - // accommodate at least `count` total elements without exceeding the current - // maximum load factor, and may rehash the container if needed. - using Base::reserve; - - // flat_hash_map::at() - // - // Returns a reference to the mapped value of the element with key equivalent - // to the passed key. - using Base::at; - - // flat_hash_map::contains() - // - // Determines whether an element with a key comparing equal to the given `key` - // exists within the `flat_hash_map`, returning `true` if so or `false` - // otherwise. - using Base::contains; - - // flat_hash_map::count(const Key& key) const - // - // Returns the number of elements with a key comparing equal to the given - // `key` within the `flat_hash_map`. note that this function will return - // either `1` or `0` since duplicate keys are not allowed within a - // `flat_hash_map`. - using Base::count; - - // flat_hash_map::equal_range() - // - // Returns a closed range [first, last], defined by a `std::pair` of two - // iterators, containing all elements with the passed key in the - // `flat_hash_map`. - using Base::equal_range; - - // flat_hash_map::find() - // - // Finds an element with the passed `key` within the `flat_hash_map`. - using Base::find; - - // flat_hash_map::operator[]() - // - // Returns a reference to the value mapped to the passed key within the - // `flat_hash_map`, performing an `insert()` if the key does not already - // exist. - // - // If an insertion occurs and results in a rehashing of the container, all - // iterators are invalidated. Otherwise iterators are not affected and - // references are not invalidated. Overloads are listed below. - // - // T& operator[](const Key& key): - // - // Inserts an init_type object constructed in-place if the element with the - // given key does not exist. - // - // T& operator[](Key&& key): - // - // Inserts an init_type object constructed in-place provided that an element - // with the given key does not exist. - using Base::operator[]; - - // flat_hash_map::bucket_count() - // - // Returns the number of "buckets" within the `flat_hash_map`. Note that - // because a flat hash map contains all elements within its internal storage, - // this value simply equals the current capacity of the `flat_hash_map`. - using Base::bucket_count; - - // flat_hash_map::load_factor() - // - // Returns the current load factor of the `flat_hash_map` (the average number - // of slots occupied with a value within the hash map). - using Base::load_factor; - - // flat_hash_map::max_load_factor() - // - // Manages the maximum load factor of the `flat_hash_map`. Overloads are - // listed below. - // - // float flat_hash_map::max_load_factor() - // - // Returns the current maximum load factor of the `flat_hash_map`. - // - // void flat_hash_map::max_load_factor(float ml) - // - // Sets the maximum load factor of the `flat_hash_map` to the passed value. - // - // NOTE: This overload is provided only for API compatibility with the STL; - // `flat_hash_map` will ignore any set load factor and manage its rehashing - // internally as an implementation detail. - using Base::max_load_factor; - - // flat_hash_map::get_allocator() - // - // Returns the allocator function associated with this `flat_hash_map`. - using Base::get_allocator; - - // flat_hash_map::hash_function() - // - // Returns the hashing function used to hash the keys within this - // `flat_hash_map`. - using Base::hash_function; - - // flat_hash_map::key_eq() - // - // Returns the function used for comparing keys equality. - using Base::key_eq; -}; - -// erase_if(flat_hash_map<>, Pred) -// -// Erases all elements that satisfy the predicate `pred` from the container `c`. -// Returns the number of erased elements. -template -typename flat_hash_map::size_type erase_if( - flat_hash_map& c, Predicate pred) { - return container_internal::EraseIf(pred, &c); -} - -namespace container_internal { - -template -struct FlatHashMapPolicy { - using slot_policy = container_internal::map_slot_policy; - using slot_type = typename slot_policy::slot_type; - using key_type = K; - using mapped_type = V; - using init_type = std::pair; - - template - static void construct(Allocator* alloc, slot_type* slot, Args&&... args) { - slot_policy::construct(alloc, slot, std::forward(args)...); - } - - template - static void destroy(Allocator* alloc, slot_type* slot) { - slot_policy::destroy(alloc, slot); - } - - template - static void transfer(Allocator* alloc, slot_type* new_slot, - slot_type* old_slot) { - slot_policy::transfer(alloc, new_slot, old_slot); - } - - template - static decltype(absl::container_internal::DecomposePair( - std::declval(), std::declval()...)) - apply(F&& f, Args&&... args) { - return absl::container_internal::DecomposePair(std::forward(f), - std::forward(args)...); - } - - static size_t space_used(const slot_type*) { return 0; } - - static std::pair& element(slot_type* slot) { return slot->value; } - - static V& value(std::pair* kv) { return kv->second; } - static const V& value(const std::pair* kv) { return kv->second; } -}; - -} // namespace container_internal - -namespace container_algorithm_internal { - -// Specialization of trait in absl/algorithm/container.h -template -struct IsUnorderedContainer< - absl::flat_hash_map> : std::true_type {}; - -} // namespace container_algorithm_internal - -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_CONTAINER_FLAT_HASH_MAP_H_ diff --git a/src/third_party/abseil-cpp/absl/container/flat_hash_map_test.cc b/src/third_party/abseil-cpp/absl/container/flat_hash_map_test.cc deleted file mode 100644 index 03171f6d1c..0000000000 --- a/src/third_party/abseil-cpp/absl/container/flat_hash_map_test.cc +++ /dev/null @@ -1,325 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/container/flat_hash_map.h" - -#include - -#include "absl/base/internal/raw_logging.h" -#include "absl/container/internal/hash_generator_testing.h" -#include "absl/container/internal/unordered_map_constructor_test.h" -#include "absl/container/internal/unordered_map_lookup_test.h" -#include "absl/container/internal/unordered_map_members_test.h" -#include "absl/container/internal/unordered_map_modifiers_test.h" -#include "absl/types/any.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace container_internal { -namespace { -using ::absl::container_internal::hash_internal::Enum; -using ::absl::container_internal::hash_internal::EnumClass; -using ::testing::_; -using ::testing::IsEmpty; -using ::testing::Pair; -using ::testing::UnorderedElementsAre; - -// Check that absl::flat_hash_map works in a global constructor. -struct BeforeMain { - BeforeMain() { - absl::flat_hash_map x; - x.insert({1, 1}); - ABSL_RAW_CHECK(x.find(0) == x.end(), "x should not contain 0"); - auto it = x.find(1); - ABSL_RAW_CHECK(it != x.end(), "x should contain 1"); - ABSL_RAW_CHECK(it->second, "1 should map to 1"); - } -}; -const BeforeMain before_main; - -template -using Map = flat_hash_map>>; - -static_assert(!std::is_standard_layout(), ""); - -using MapTypes = - ::testing::Types, Map, - Map, Map, - Map, Map>; - -INSTANTIATE_TYPED_TEST_SUITE_P(FlatHashMap, ConstructorTest, MapTypes); -INSTANTIATE_TYPED_TEST_SUITE_P(FlatHashMap, LookupTest, MapTypes); -INSTANTIATE_TYPED_TEST_SUITE_P(FlatHashMap, MembersTest, MapTypes); -INSTANTIATE_TYPED_TEST_SUITE_P(FlatHashMap, ModifiersTest, MapTypes); - -using UniquePtrMapTypes = ::testing::Types>>; - -INSTANTIATE_TYPED_TEST_SUITE_P(FlatHashMap, UniquePtrModifiersTest, - UniquePtrMapTypes); - -TEST(FlatHashMap, StandardLayout) { - struct Int { - explicit Int(size_t value) : value(value) {} - Int() : value(0) { ADD_FAILURE(); } - Int(const Int& other) : value(other.value) { ADD_FAILURE(); } - Int(Int&&) = default; - bool operator==(const Int& other) const { return value == other.value; } - size_t value; - }; - static_assert(std::is_standard_layout(), ""); - - struct Hash { - size_t operator()(const Int& obj) const { return obj.value; } - }; - - // Verify that neither the key nor the value get default-constructed or - // copy-constructed. - { - flat_hash_map m; - m.try_emplace(Int(1), Int(2)); - m.try_emplace(Int(3), Int(4)); - m.erase(Int(1)); - m.rehash(2 * m.bucket_count()); - } - { - flat_hash_map m; - m.try_emplace(Int(1), Int(2)); - m.try_emplace(Int(3), Int(4)); - m.erase(Int(1)); - m.clear(); - } -} - -// gcc becomes unhappy if this is inside the method, so pull it out here. -struct balast {}; - -TEST(FlatHashMap, IteratesMsan) { - // Because SwissTable randomizes on pointer addresses, we keep old tables - // around to ensure we don't reuse old memory. - std::vector> garbage; - for (int i = 0; i < 100; ++i) { - absl::flat_hash_map t; - for (int j = 0; j < 100; ++j) { - t[j]; - for (const auto& p : t) EXPECT_THAT(p, Pair(_, _)); - } - garbage.push_back(std::move(t)); - } -} - -// Demonstration of the "Lazy Key" pattern. This uses heterogeneous insert to -// avoid creating expensive key elements when the item is already present in the -// map. -struct LazyInt { - explicit LazyInt(size_t value, int* tracker) - : value(value), tracker(tracker) {} - - explicit operator size_t() const { - ++*tracker; - return value; - } - - size_t value; - int* tracker; -}; - -struct Hash { - using is_transparent = void; - int* tracker; - size_t operator()(size_t obj) const { - ++*tracker; - return obj; - } - size_t operator()(const LazyInt& obj) const { - ++*tracker; - return obj.value; - } -}; - -struct Eq { - using is_transparent = void; - bool operator()(size_t lhs, size_t rhs) const { - return lhs == rhs; - } - bool operator()(size_t lhs, const LazyInt& rhs) const { - return lhs == rhs.value; - } -}; - -TEST(FlatHashMap, LazyKeyPattern) { - // hashes are only guaranteed in opt mode, we use assertions to track internal - // state that can cause extra calls to hash. - int conversions = 0; - int hashes = 0; - flat_hash_map m(0, Hash{&hashes}); - m.reserve(3); - - m[LazyInt(1, &conversions)] = 1; - EXPECT_THAT(m, UnorderedElementsAre(Pair(1, 1))); - EXPECT_EQ(conversions, 1); -#ifdef NDEBUG - EXPECT_EQ(hashes, 1); -#endif - - m[LazyInt(1, &conversions)] = 2; - EXPECT_THAT(m, UnorderedElementsAre(Pair(1, 2))); - EXPECT_EQ(conversions, 1); -#ifdef NDEBUG - EXPECT_EQ(hashes, 2); -#endif - - m.try_emplace(LazyInt(2, &conversions), 3); - EXPECT_THAT(m, UnorderedElementsAre(Pair(1, 2), Pair(2, 3))); - EXPECT_EQ(conversions, 2); -#ifdef NDEBUG - EXPECT_EQ(hashes, 3); -#endif - - m.try_emplace(LazyInt(2, &conversions), 4); - EXPECT_THAT(m, UnorderedElementsAre(Pair(1, 2), Pair(2, 3))); - EXPECT_EQ(conversions, 2); -#ifdef NDEBUG - EXPECT_EQ(hashes, 4); -#endif -} - -TEST(FlatHashMap, BitfieldArgument) { - union { - int n : 1; - }; - n = 0; - flat_hash_map m; - m.erase(n); - m.count(n); - m.prefetch(n); - m.find(n); - m.contains(n); - m.equal_range(n); - m.insert_or_assign(n, n); - m.insert_or_assign(m.end(), n, n); - m.try_emplace(n); - m.try_emplace(m.end(), n); - m.at(n); - m[n]; -} - -TEST(FlatHashMap, MergeExtractInsert) { - // We can't test mutable keys, or non-copyable keys with flat_hash_map. - // Test that the nodes have the proper API. - absl::flat_hash_map m = {{1, 7}, {2, 9}}; - auto node = m.extract(1); - EXPECT_TRUE(node); - EXPECT_EQ(node.key(), 1); - EXPECT_EQ(node.mapped(), 7); - EXPECT_THAT(m, UnorderedElementsAre(Pair(2, 9))); - - node.mapped() = 17; - m.insert(std::move(node)); - EXPECT_THAT(m, UnorderedElementsAre(Pair(1, 17), Pair(2, 9))); -} - -bool FirstIsEven(std::pair p) { return p.first % 2 == 0; } - -TEST(FlatHashMap, EraseIf) { - // Erase all elements. - { - flat_hash_map s = {{1, 1}, {2, 2}, {3, 3}, {4, 4}, {5, 5}}; - EXPECT_EQ(erase_if(s, [](std::pair) { return true; }), 5); - EXPECT_THAT(s, IsEmpty()); - } - // Erase no elements. - { - flat_hash_map s = {{1, 1}, {2, 2}, {3, 3}, {4, 4}, {5, 5}}; - EXPECT_EQ(erase_if(s, [](std::pair) { return false; }), 0); - EXPECT_THAT(s, UnorderedElementsAre(Pair(1, 1), Pair(2, 2), Pair(3, 3), - Pair(4, 4), Pair(5, 5))); - } - // Erase specific elements. - { - flat_hash_map s = {{1, 1}, {2, 2}, {3, 3}, {4, 4}, {5, 5}}; - EXPECT_EQ(erase_if(s, - [](std::pair kvp) { - return kvp.first % 2 == 1; - }), - 3); - EXPECT_THAT(s, UnorderedElementsAre(Pair(2, 2), Pair(4, 4))); - } - // Predicate is function reference. - { - flat_hash_map s = {{1, 1}, {2, 2}, {3, 3}, {4, 4}, {5, 5}}; - EXPECT_EQ(erase_if(s, FirstIsEven), 2); - EXPECT_THAT(s, UnorderedElementsAre(Pair(1, 1), Pair(3, 3), Pair(5, 5))); - } - // Predicate is function pointer. - { - flat_hash_map s = {{1, 1}, {2, 2}, {3, 3}, {4, 4}, {5, 5}}; - EXPECT_EQ(erase_if(s, &FirstIsEven), 2); - EXPECT_THAT(s, UnorderedElementsAre(Pair(1, 1), Pair(3, 3), Pair(5, 5))); - } -} - -// This test requires std::launder for mutable key access in node handles. -#if defined(__cpp_lib_launder) && __cpp_lib_launder >= 201606 -TEST(FlatHashMap, NodeHandleMutableKeyAccess) { - flat_hash_map map; - - map["key1"] = "mapped"; - - auto nh = map.extract(map.begin()); - nh.key().resize(3); - map.insert(std::move(nh)); - - EXPECT_THAT(map, testing::ElementsAre(Pair("key", "mapped"))); -} -#endif - -TEST(FlatHashMap, Reserve) { - // Verify that if we reserve(size() + n) then we can perform n insertions - // without a rehash, i.e., without invalidating any references. - for (size_t trial = 0; trial < 20; ++trial) { - for (size_t initial = 3; initial < 100; ++initial) { - // Fill in `initial` entries, then erase 2 of them, then reserve space for - // two inserts and check for reference stability while doing the inserts. - flat_hash_map map; - for (size_t i = 0; i < initial; ++i) { - map[i] = i; - } - map.erase(0); - map.erase(1); - map.reserve(map.size() + 2); - size_t& a2 = map[2]; - // In the event of a failure, asan will complain in one of these two - // assignments. - map[initial] = a2; - map[initial + 1] = a2; - // Fail even when not under asan: - size_t& a2new = map[2]; - EXPECT_EQ(&a2, &a2new); - } - } -} - -TEST(FlatHashMap, RecursiveTypeCompiles) { - struct RecursiveType { - flat_hash_map m; - }; - RecursiveType t; - t.m[0] = RecursiveType{}; -} - -} // namespace -} // namespace container_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/src/third_party/abseil-cpp/absl/container/flat_hash_set.h b/src/third_party/abseil-cpp/absl/container/flat_hash_set.h deleted file mode 100644 index f5376f991a..0000000000 --- a/src/third_party/abseil-cpp/absl/container/flat_hash_set.h +++ /dev/null @@ -1,503 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// ----------------------------------------------------------------------------- -// File: flat_hash_set.h -// ----------------------------------------------------------------------------- -// -// An `absl::flat_hash_set` is an unordered associative container designed to -// be a more efficient replacement for `std::unordered_set`. Like -// `unordered_set`, search, insertion, and deletion of set elements can be done -// as an `O(1)` operation. However, `flat_hash_set` (and other unordered -// associative containers known as the collection of Abseil "Swiss tables") -// contain other optimizations that result in both memory and computation -// advantages. -// -// In most cases, your default choice for a hash set should be a set of type -// `flat_hash_set`. -#ifndef ABSL_CONTAINER_FLAT_HASH_SET_H_ -#define ABSL_CONTAINER_FLAT_HASH_SET_H_ - -#include -#include - -#include "absl/algorithm/container.h" -#include "absl/base/macros.h" -#include "absl/container/internal/container_memory.h" -#include "absl/container/internal/hash_function_defaults.h" // IWYU pragma: export -#include "absl/container/internal/raw_hash_set.h" // IWYU pragma: export -#include "absl/memory/memory.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace container_internal { -template -struct FlatHashSetPolicy; -} // namespace container_internal - -// ----------------------------------------------------------------------------- -// absl::flat_hash_set -// ----------------------------------------------------------------------------- -// -// An `absl::flat_hash_set` is an unordered associative container which has -// been optimized for both speed and memory footprint in most common use cases. -// Its interface is similar to that of `std::unordered_set` with the -// following notable differences: -// -// * Requires keys that are CopyConstructible -// * Supports heterogeneous lookup, through `find()` and `insert()`, provided -// that the set is provided a compatible heterogeneous hashing function and -// equality operator. -// * Invalidates any references and pointers to elements within the table after -// `rehash()`. -// * Contains a `capacity()` member function indicating the number of element -// slots (open, deleted, and empty) within the hash set. -// * Returns `void` from the `erase(iterator)` overload. -// -// By default, `flat_hash_set` uses the `absl::Hash` hashing framework. All -// fundamental and Abseil types that support the `absl::Hash` framework have a -// compatible equality operator for comparing insertions into `flat_hash_set`. -// If your type is not yet supported by the `absl::Hash` framework, see -// absl/hash/hash.h for information on extending Abseil hashing to user-defined -// types. -// -// Using `absl::flat_hash_set` at interface boundaries in dynamically loaded -// libraries (e.g. .dll, .so) is unsupported due to way `absl::Hash` values may -// be randomized across dynamically loaded libraries. -// -// NOTE: A `flat_hash_set` stores its keys directly inside its implementation -// array to avoid memory indirection. Because a `flat_hash_set` is designed to -// move data when rehashed, set keys will not retain pointer stability. If you -// require pointer stability, consider using -// `absl::flat_hash_set>`. If your type is not moveable and -// you require pointer stability, consider `absl::node_hash_set` instead. -// -// Example: -// -// // Create a flat hash set of three strings -// absl::flat_hash_set ducks = -// {"huey", "dewey", "louie"}; -// -// // Insert a new element into the flat hash set -// ducks.insert("donald"); -// -// // Force a rehash of the flat hash set -// ducks.rehash(0); -// -// // See if "dewey" is present -// if (ducks.contains("dewey")) { -// std::cout << "We found dewey!" << std::endl; -// } -template , - class Eq = absl::container_internal::hash_default_eq, - class Allocator = std::allocator> -class flat_hash_set - : public absl::container_internal::raw_hash_set< - absl::container_internal::FlatHashSetPolicy, Hash, Eq, Allocator> { - using Base = typename flat_hash_set::raw_hash_set; - - public: - // Constructors and Assignment Operators - // - // A flat_hash_set supports the same overload set as `std::unordered_set` - // for construction and assignment: - // - // * Default constructor - // - // // No allocation for the table's elements is made. - // absl::flat_hash_set set1; - // - // * Initializer List constructor - // - // absl::flat_hash_set set2 = - // {{"huey"}, {"dewey"}, {"louie"},}; - // - // * Copy constructor - // - // absl::flat_hash_set set3(set2); - // - // * Copy assignment operator - // - // // Hash functor and Comparator are copied as well - // absl::flat_hash_set set4; - // set4 = set3; - // - // * Move constructor - // - // // Move is guaranteed efficient - // absl::flat_hash_set set5(std::move(set4)); - // - // * Move assignment operator - // - // // May be efficient if allocators are compatible - // absl::flat_hash_set set6; - // set6 = std::move(set5); - // - // * Range constructor - // - // std::vector v = {"a", "b"}; - // absl::flat_hash_set set7(v.begin(), v.end()); - flat_hash_set() {} - using Base::Base; - - // flat_hash_set::begin() - // - // Returns an iterator to the beginning of the `flat_hash_set`. - using Base::begin; - - // flat_hash_set::cbegin() - // - // Returns a const iterator to the beginning of the `flat_hash_set`. - using Base::cbegin; - - // flat_hash_set::cend() - // - // Returns a const iterator to the end of the `flat_hash_set`. - using Base::cend; - - // flat_hash_set::end() - // - // Returns an iterator to the end of the `flat_hash_set`. - using Base::end; - - // flat_hash_set::capacity() - // - // Returns the number of element slots (assigned, deleted, and empty) - // available within the `flat_hash_set`. - // - // NOTE: this member function is particular to `absl::flat_hash_set` and is - // not provided in the `std::unordered_set` API. - using Base::capacity; - - // flat_hash_set::empty() - // - // Returns whether or not the `flat_hash_set` is empty. - using Base::empty; - - // flat_hash_set::max_size() - // - // Returns the largest theoretical possible number of elements within a - // `flat_hash_set` under current memory constraints. This value can be thought - // of the largest value of `std::distance(begin(), end())` for a - // `flat_hash_set`. - using Base::max_size; - - // flat_hash_set::size() - // - // Returns the number of elements currently within the `flat_hash_set`. - using Base::size; - - // flat_hash_set::clear() - // - // Removes all elements from the `flat_hash_set`. Invalidates any references, - // pointers, or iterators referring to contained elements. - // - // NOTE: this operation may shrink the underlying buffer. To avoid shrinking - // the underlying buffer call `erase(begin(), end())`. - using Base::clear; - - // flat_hash_set::erase() - // - // Erases elements within the `flat_hash_set`. Erasing does not trigger a - // rehash. Overloads are listed below. - // - // void erase(const_iterator pos): - // - // Erases the element at `position` of the `flat_hash_set`, returning - // `void`. - // - // NOTE: returning `void` in this case is different than that of STL - // containers in general and `std::unordered_set` in particular (which - // return an iterator to the element following the erased element). If that - // iterator is needed, simply post increment the iterator: - // - // set.erase(it++); - // - // iterator erase(const_iterator first, const_iterator last): - // - // Erases the elements in the open interval [`first`, `last`), returning an - // iterator pointing to `last`. - // - // size_type erase(const key_type& key): - // - // Erases the element with the matching key, if it exists, returning the - // number of elements erased (0 or 1). - using Base::erase; - - // flat_hash_set::insert() - // - // Inserts an element of the specified value into the `flat_hash_set`, - // returning an iterator pointing to the newly inserted element, provided that - // an element with the given key does not already exist. If rehashing occurs - // due to the insertion, all iterators are invalidated. Overloads are listed - // below. - // - // std::pair insert(const T& value): - // - // Inserts a value into the `flat_hash_set`. Returns a pair consisting of an - // iterator to the inserted element (or to the element that prevented the - // insertion) and a bool denoting whether the insertion took place. - // - // std::pair insert(T&& value): - // - // Inserts a moveable value into the `flat_hash_set`. Returns a pair - // consisting of an iterator to the inserted element (or to the element that - // prevented the insertion) and a bool denoting whether the insertion took - // place. - // - // iterator insert(const_iterator hint, const T& value): - // iterator insert(const_iterator hint, T&& value): - // - // Inserts a value, using the position of `hint` as a non-binding suggestion - // for where to begin the insertion search. Returns an iterator to the - // inserted element, or to the existing element that prevented the - // insertion. - // - // void insert(InputIterator first, InputIterator last): - // - // Inserts a range of values [`first`, `last`). - // - // NOTE: Although the STL does not specify which element may be inserted if - // multiple keys compare equivalently, for `flat_hash_set` we guarantee the - // first match is inserted. - // - // void insert(std::initializer_list ilist): - // - // Inserts the elements within the initializer list `ilist`. - // - // NOTE: Although the STL does not specify which element may be inserted if - // multiple keys compare equivalently within the initializer list, for - // `flat_hash_set` we guarantee the first match is inserted. - using Base::insert; - - // flat_hash_set::emplace() - // - // Inserts an element of the specified value by constructing it in-place - // within the `flat_hash_set`, provided that no element with the given key - // already exists. - // - // The element may be constructed even if there already is an element with the - // key in the container, in which case the newly constructed element will be - // destroyed immediately. - // - // If rehashing occurs due to the insertion, all iterators are invalidated. - using Base::emplace; - - // flat_hash_set::emplace_hint() - // - // Inserts an element of the specified value by constructing it in-place - // within the `flat_hash_set`, using the position of `hint` as a non-binding - // suggestion for where to begin the insertion search, and only inserts - // provided that no element with the given key already exists. - // - // The element may be constructed even if there already is an element with the - // key in the container, in which case the newly constructed element will be - // destroyed immediately. - // - // If rehashing occurs due to the insertion, all iterators are invalidated. - using Base::emplace_hint; - - // flat_hash_set::extract() - // - // Extracts the indicated element, erasing it in the process, and returns it - // as a C++17-compatible node handle. Overloads are listed below. - // - // node_type extract(const_iterator position): - // - // Extracts the element at the indicated position and returns a node handle - // owning that extracted data. - // - // node_type extract(const key_type& x): - // - // Extracts the element with the key matching the passed key value and - // returns a node handle owning that extracted data. If the `flat_hash_set` - // does not contain an element with a matching key, this function returns an - // empty node handle. - using Base::extract; - - // flat_hash_set::merge() - // - // Extracts elements from a given `source` flat hash set into this - // `flat_hash_set`. If the destination `flat_hash_set` already contains an - // element with an equivalent key, that element is not extracted. - using Base::merge; - - // flat_hash_set::swap(flat_hash_set& other) - // - // Exchanges the contents of this `flat_hash_set` with those of the `other` - // flat hash set, avoiding invocation of any move, copy, or swap operations on - // individual elements. - // - // All iterators and references on the `flat_hash_set` remain valid, excepting - // for the past-the-end iterator, which is invalidated. - // - // `swap()` requires that the flat hash set's hashing and key equivalence - // functions be Swappable, and are exchaged using unqualified calls to - // non-member `swap()`. If the set's allocator has - // `std::allocator_traits::propagate_on_container_swap::value` - // set to `true`, the allocators are also exchanged using an unqualified call - // to non-member `swap()`; otherwise, the allocators are not swapped. - using Base::swap; - - // flat_hash_set::rehash(count) - // - // Rehashes the `flat_hash_set`, setting the number of slots to be at least - // the passed value. If the new number of slots increases the load factor more - // than the current maximum load factor - // (`count` < `size()` / `max_load_factor()`), then the new number of slots - // will be at least `size()` / `max_load_factor()`. - // - // To force a rehash, pass rehash(0). - // - // NOTE: unlike behavior in `std::unordered_set`, references are also - // invalidated upon a `rehash()`. - using Base::rehash; - - // flat_hash_set::reserve(count) - // - // Sets the number of slots in the `flat_hash_set` to the number needed to - // accommodate at least `count` total elements without exceeding the current - // maximum load factor, and may rehash the container if needed. - using Base::reserve; - - // flat_hash_set::contains() - // - // Determines whether an element comparing equal to the given `key` exists - // within the `flat_hash_set`, returning `true` if so or `false` otherwise. - using Base::contains; - - // flat_hash_set::count(const Key& key) const - // - // Returns the number of elements comparing equal to the given `key` within - // the `flat_hash_set`. note that this function will return either `1` or `0` - // since duplicate elements are not allowed within a `flat_hash_set`. - using Base::count; - - // flat_hash_set::equal_range() - // - // Returns a closed range [first, last], defined by a `std::pair` of two - // iterators, containing all elements with the passed key in the - // `flat_hash_set`. - using Base::equal_range; - - // flat_hash_set::find() - // - // Finds an element with the passed `key` within the `flat_hash_set`. - using Base::find; - - // flat_hash_set::bucket_count() - // - // Returns the number of "buckets" within the `flat_hash_set`. Note that - // because a flat hash set contains all elements within its internal storage, - // this value simply equals the current capacity of the `flat_hash_set`. - using Base::bucket_count; - - // flat_hash_set::load_factor() - // - // Returns the current load factor of the `flat_hash_set` (the average number - // of slots occupied with a value within the hash set). - using Base::load_factor; - - // flat_hash_set::max_load_factor() - // - // Manages the maximum load factor of the `flat_hash_set`. Overloads are - // listed below. - // - // float flat_hash_set::max_load_factor() - // - // Returns the current maximum load factor of the `flat_hash_set`. - // - // void flat_hash_set::max_load_factor(float ml) - // - // Sets the maximum load factor of the `flat_hash_set` to the passed value. - // - // NOTE: This overload is provided only for API compatibility with the STL; - // `flat_hash_set` will ignore any set load factor and manage its rehashing - // internally as an implementation detail. - using Base::max_load_factor; - - // flat_hash_set::get_allocator() - // - // Returns the allocator function associated with this `flat_hash_set`. - using Base::get_allocator; - - // flat_hash_set::hash_function() - // - // Returns the hashing function used to hash the keys within this - // `flat_hash_set`. - using Base::hash_function; - - // flat_hash_set::key_eq() - // - // Returns the function used for comparing keys equality. - using Base::key_eq; -}; - -// erase_if(flat_hash_set<>, Pred) -// -// Erases all elements that satisfy the predicate `pred` from the container `c`. -// Returns the number of erased elements. -template -typename flat_hash_set::size_type erase_if( - flat_hash_set& c, Predicate pred) { - return container_internal::EraseIf(pred, &c); -} - -namespace container_internal { - -template -struct FlatHashSetPolicy { - using slot_type = T; - using key_type = T; - using init_type = T; - using constant_iterators = std::true_type; - - template - static void construct(Allocator* alloc, slot_type* slot, Args&&... args) { - absl::allocator_traits::construct(*alloc, slot, - std::forward(args)...); - } - - template - static void destroy(Allocator* alloc, slot_type* slot) { - absl::allocator_traits::destroy(*alloc, slot); - } - - static T& element(slot_type* slot) { return *slot; } - - template - static decltype(absl::container_internal::DecomposeValue( - std::declval(), std::declval()...)) - apply(F&& f, Args&&... args) { - return absl::container_internal::DecomposeValue( - std::forward(f), std::forward(args)...); - } - - static size_t space_used(const T*) { return 0; } -}; -} // namespace container_internal - -namespace container_algorithm_internal { - -// Specialization of trait in absl/algorithm/container.h -template -struct IsUnorderedContainer> - : std::true_type {}; - -} // namespace container_algorithm_internal - -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_CONTAINER_FLAT_HASH_SET_H_ diff --git a/src/third_party/abseil-cpp/absl/container/flat_hash_set_test.cc b/src/third_party/abseil-cpp/absl/container/flat_hash_set_test.cc deleted file mode 100644 index b6a72a20a3..0000000000 --- a/src/third_party/abseil-cpp/absl/container/flat_hash_set_test.cc +++ /dev/null @@ -1,178 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/container/flat_hash_set.h" - -#include - -#include "absl/base/internal/raw_logging.h" -#include "absl/container/internal/hash_generator_testing.h" -#include "absl/container/internal/unordered_set_constructor_test.h" -#include "absl/container/internal/unordered_set_lookup_test.h" -#include "absl/container/internal/unordered_set_members_test.h" -#include "absl/container/internal/unordered_set_modifiers_test.h" -#include "absl/memory/memory.h" -#include "absl/strings/string_view.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace container_internal { -namespace { - -using ::absl::container_internal::hash_internal::Enum; -using ::absl::container_internal::hash_internal::EnumClass; -using ::testing::IsEmpty; -using ::testing::Pointee; -using ::testing::UnorderedElementsAre; -using ::testing::UnorderedElementsAreArray; - -// Check that absl::flat_hash_set works in a global constructor. -struct BeforeMain { - BeforeMain() { - absl::flat_hash_set x; - x.insert(1); - ABSL_RAW_CHECK(!x.contains(0), "x should not contain 0"); - ABSL_RAW_CHECK(x.contains(1), "x should contain 1"); - } -}; -const BeforeMain before_main; - -template -using Set = - absl::flat_hash_set>; - -using SetTypes = - ::testing::Types, Set, Set, Set>; - -INSTANTIATE_TYPED_TEST_SUITE_P(FlatHashSet, ConstructorTest, SetTypes); -INSTANTIATE_TYPED_TEST_SUITE_P(FlatHashSet, LookupTest, SetTypes); -INSTANTIATE_TYPED_TEST_SUITE_P(FlatHashSet, MembersTest, SetTypes); -INSTANTIATE_TYPED_TEST_SUITE_P(FlatHashSet, ModifiersTest, SetTypes); - -TEST(FlatHashSet, EmplaceString) { - std::vector v = {"a", "b"}; - absl::flat_hash_set hs(v.begin(), v.end()); - EXPECT_THAT(hs, UnorderedElementsAreArray(v)); -} - -TEST(FlatHashSet, BitfieldArgument) { - union { - int n : 1; - }; - n = 0; - absl::flat_hash_set s = {n}; - s.insert(n); - s.insert(s.end(), n); - s.insert({n}); - s.erase(n); - s.count(n); - s.prefetch(n); - s.find(n); - s.contains(n); - s.equal_range(n); -} - -TEST(FlatHashSet, MergeExtractInsert) { - struct Hash { - size_t operator()(const std::unique_ptr& p) const { return *p; } - }; - struct Eq { - bool operator()(const std::unique_ptr& a, - const std::unique_ptr& b) const { - return *a == *b; - } - }; - absl::flat_hash_set, Hash, Eq> set1, set2; - set1.insert(absl::make_unique(7)); - set1.insert(absl::make_unique(17)); - - set2.insert(absl::make_unique(7)); - set2.insert(absl::make_unique(19)); - - EXPECT_THAT(set1, UnorderedElementsAre(Pointee(7), Pointee(17))); - EXPECT_THAT(set2, UnorderedElementsAre(Pointee(7), Pointee(19))); - - set1.merge(set2); - - EXPECT_THAT(set1, UnorderedElementsAre(Pointee(7), Pointee(17), Pointee(19))); - EXPECT_THAT(set2, UnorderedElementsAre(Pointee(7))); - - auto node = set1.extract(absl::make_unique(7)); - EXPECT_TRUE(node); - EXPECT_THAT(node.value(), Pointee(7)); - EXPECT_THAT(set1, UnorderedElementsAre(Pointee(17), Pointee(19))); - - auto insert_result = set2.insert(std::move(node)); - EXPECT_FALSE(node); - EXPECT_FALSE(insert_result.inserted); - EXPECT_TRUE(insert_result.node); - EXPECT_THAT(insert_result.node.value(), Pointee(7)); - EXPECT_EQ(**insert_result.position, 7); - EXPECT_NE(insert_result.position->get(), insert_result.node.value().get()); - EXPECT_THAT(set2, UnorderedElementsAre(Pointee(7))); - - node = set1.extract(absl::make_unique(17)); - EXPECT_TRUE(node); - EXPECT_THAT(node.value(), Pointee(17)); - EXPECT_THAT(set1, UnorderedElementsAre(Pointee(19))); - - node.value() = absl::make_unique(23); - - insert_result = set2.insert(std::move(node)); - EXPECT_FALSE(node); - EXPECT_TRUE(insert_result.inserted); - EXPECT_FALSE(insert_result.node); - EXPECT_EQ(**insert_result.position, 23); - EXPECT_THAT(set2, UnorderedElementsAre(Pointee(7), Pointee(23))); -} - -bool IsEven(int k) { return k % 2 == 0; } - -TEST(FlatHashSet, EraseIf) { - // Erase all elements. - { - flat_hash_set s = {1, 2, 3, 4, 5}; - EXPECT_EQ(erase_if(s, [](int) { return true; }), 5); - EXPECT_THAT(s, IsEmpty()); - } - // Erase no elements. - { - flat_hash_set s = {1, 2, 3, 4, 5}; - EXPECT_EQ(erase_if(s, [](int) { return false; }), 0); - EXPECT_THAT(s, UnorderedElementsAre(1, 2, 3, 4, 5)); - } - // Erase specific elements. - { - flat_hash_set s = {1, 2, 3, 4, 5}; - EXPECT_EQ(erase_if(s, [](int k) { return k % 2 == 1; }), 3); - EXPECT_THAT(s, UnorderedElementsAre(2, 4)); - } - // Predicate is function reference. - { - flat_hash_set s = {1, 2, 3, 4, 5}; - EXPECT_EQ(erase_if(s, IsEven), 2); - EXPECT_THAT(s, UnorderedElementsAre(1, 3, 5)); - } - // Predicate is function pointer. - { - flat_hash_set s = {1, 2, 3, 4, 5}; - EXPECT_EQ(erase_if(s, &IsEven), 2); - EXPECT_THAT(s, UnorderedElementsAre(1, 3, 5)); - } -} - -} // namespace -} // namespace container_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/src/third_party/abseil-cpp/absl/container/inlined_vector.h b/src/third_party/abseil-cpp/absl/container/inlined_vector.h deleted file mode 100644 index 7058f375e7..0000000000 --- a/src/third_party/abseil-cpp/absl/container/inlined_vector.h +++ /dev/null @@ -1,914 +0,0 @@ -// Copyright 2019 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// ----------------------------------------------------------------------------- -// File: inlined_vector.h -// ----------------------------------------------------------------------------- -// -// This header file contains the declaration and definition of an "inlined -// vector" which behaves in an equivalent fashion to a `std::vector`, except -// that storage for small sequences of the vector are provided inline without -// requiring any heap allocation. -// -// An `absl::InlinedVector` specifies the default capacity `N` as one of -// its template parameters. Instances where `size() <= N` hold contained -// elements in inline space. Typically `N` is very small so that sequences that -// are expected to be short do not require allocations. -// -// An `absl::InlinedVector` does not usually require a specific allocator. If -// the inlined vector grows beyond its initial constraints, it will need to -// allocate (as any normal `std::vector` would). This is usually performed with -// the default allocator (defined as `std::allocator`). Optionally, a custom -// allocator type may be specified as `A` in `absl::InlinedVector`. - -#ifndef ABSL_CONTAINER_INLINED_VECTOR_H_ -#define ABSL_CONTAINER_INLINED_VECTOR_H_ - -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "absl/algorithm/algorithm.h" -#include "absl/base/internal/throw_delegate.h" -#include "absl/base/macros.h" -#include "absl/base/optimization.h" -#include "absl/base/port.h" -#include "absl/container/internal/inlined_vector.h" -#include "absl/memory/memory.h" -#include "absl/meta/type_traits.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -// ----------------------------------------------------------------------------- -// InlinedVector -// ----------------------------------------------------------------------------- -// -// An `absl::InlinedVector` is designed to be a drop-in replacement for -// `std::vector` for use cases where the vector's size is sufficiently small -// that it can be inlined. If the inlined vector does grow beyond its estimated -// capacity, it will trigger an initial allocation on the heap, and will behave -// as a `std::vector`. The API of the `absl::InlinedVector` within this file is -// designed to cover the same API footprint as covered by `std::vector`. -template > -class InlinedVector { - static_assert(N > 0, "`absl::InlinedVector` requires an inlined capacity."); - - using Storage = inlined_vector_internal::Storage; - - template - using AllocatorTraits = inlined_vector_internal::AllocatorTraits; - template - using MoveIterator = inlined_vector_internal::MoveIterator; - template - using IsMemcpyOk = inlined_vector_internal::IsMemcpyOk; - template - using IsMoveAssignOk = inlined_vector_internal::IsMoveAssignOk; - - template - using IteratorValueAdapter = - inlined_vector_internal::IteratorValueAdapter; - template - using CopyValueAdapter = inlined_vector_internal::CopyValueAdapter; - template - using DefaultValueAdapter = - inlined_vector_internal::DefaultValueAdapter; - - template - using EnableIfAtLeastForwardIterator = absl::enable_if_t< - inlined_vector_internal::IsAtLeastForwardIterator::value, int>; - template - using DisableIfAtLeastForwardIterator = absl::enable_if_t< - !inlined_vector_internal::IsAtLeastForwardIterator::value, int>; - - using MemcpyPolicy = typename Storage::MemcpyPolicy; - using ElementwiseAssignPolicy = typename Storage::ElementwiseAssignPolicy; - using ElementwiseConstructPolicy = - typename Storage::ElementwiseConstructPolicy; - using MoveAssignmentPolicy = typename Storage::MoveAssignmentPolicy; - - public: - using allocator_type = A; - using value_type = inlined_vector_internal::ValueType; - using pointer = inlined_vector_internal::Pointer; - using const_pointer = inlined_vector_internal::ConstPointer; - using size_type = inlined_vector_internal::SizeType; - using difference_type = inlined_vector_internal::DifferenceType; - using reference = inlined_vector_internal::Reference; - using const_reference = inlined_vector_internal::ConstReference; - using iterator = inlined_vector_internal::Iterator; - using const_iterator = inlined_vector_internal::ConstIterator; - using reverse_iterator = inlined_vector_internal::ReverseIterator; - using const_reverse_iterator = - inlined_vector_internal::ConstReverseIterator; - - // --------------------------------------------------------------------------- - // InlinedVector Constructors and Destructor - // --------------------------------------------------------------------------- - - // Creates an empty inlined vector with a value-initialized allocator. - InlinedVector() noexcept(noexcept(allocator_type())) : storage_() {} - - // Creates an empty inlined vector with a copy of `allocator`. - explicit InlinedVector(const allocator_type& allocator) noexcept - : storage_(allocator) {} - - // Creates an inlined vector with `n` copies of `value_type()`. - explicit InlinedVector(size_type n, - const allocator_type& allocator = allocator_type()) - : storage_(allocator) { - storage_.Initialize(DefaultValueAdapter(), n); - } - - // Creates an inlined vector with `n` copies of `v`. - InlinedVector(size_type n, const_reference v, - const allocator_type& allocator = allocator_type()) - : storage_(allocator) { - storage_.Initialize(CopyValueAdapter(std::addressof(v)), n); - } - - // Creates an inlined vector with copies of the elements of `list`. - InlinedVector(std::initializer_list list, - const allocator_type& allocator = allocator_type()) - : InlinedVector(list.begin(), list.end(), allocator) {} - - // Creates an inlined vector with elements constructed from the provided - // forward iterator range [`first`, `last`). - // - // NOTE: the `enable_if` prevents ambiguous interpretation between a call to - // this constructor with two integral arguments and a call to the above - // `InlinedVector(size_type, const_reference)` constructor. - template = 0> - InlinedVector(ForwardIterator first, ForwardIterator last, - const allocator_type& allocator = allocator_type()) - : storage_(allocator) { - storage_.Initialize(IteratorValueAdapter(first), - static_cast(std::distance(first, last))); - } - - // Creates an inlined vector with elements constructed from the provided input - // iterator range [`first`, `last`). - template = 0> - InlinedVector(InputIterator first, InputIterator last, - const allocator_type& allocator = allocator_type()) - : storage_(allocator) { - std::copy(first, last, std::back_inserter(*this)); - } - - // Creates an inlined vector by copying the contents of `other` using - // `other`'s allocator. - InlinedVector(const InlinedVector& other) - : InlinedVector(other, other.storage_.GetAllocator()) {} - - // Creates an inlined vector by copying the contents of `other` using the - // provided `allocator`. - InlinedVector(const InlinedVector& other, const allocator_type& allocator) - : storage_(allocator) { - if (other.empty()) { - // Empty; nothing to do. - } else if (IsMemcpyOk::value && !other.storage_.GetIsAllocated()) { - // Memcpy-able and do not need allocation. - storage_.MemcpyFrom(other.storage_); - } else { - storage_.InitFrom(other.storage_); - } - } - - // Creates an inlined vector by moving in the contents of `other` without - // allocating. If `other` contains allocated memory, the newly-created inlined - // vector will take ownership of that memory. However, if `other` does not - // contain allocated memory, the newly-created inlined vector will perform - // element-wise move construction of the contents of `other`. - // - // NOTE: since no allocation is performed for the inlined vector in either - // case, the `noexcept(...)` specification depends on whether moving the - // underlying objects can throw. It is assumed assumed that... - // a) move constructors should only throw due to allocation failure. - // b) if `value_type`'s move constructor allocates, it uses the same - // allocation function as the inlined vector's allocator. - // Thus, the move constructor is non-throwing if the allocator is non-throwing - // or `value_type`'s move constructor is specified as `noexcept`. - InlinedVector(InlinedVector&& other) noexcept( - absl::allocator_is_nothrow::value || - std::is_nothrow_move_constructible::value) - : storage_(other.storage_.GetAllocator()) { - if (IsMemcpyOk::value) { - storage_.MemcpyFrom(other.storage_); - - other.storage_.SetInlinedSize(0); - } else if (other.storage_.GetIsAllocated()) { - storage_.SetAllocation({other.storage_.GetAllocatedData(), - other.storage_.GetAllocatedCapacity()}); - storage_.SetAllocatedSize(other.storage_.GetSize()); - - other.storage_.SetInlinedSize(0); - } else { - IteratorValueAdapter> other_values( - MoveIterator(other.storage_.GetInlinedData())); - - inlined_vector_internal::ConstructElements( - storage_.GetAllocator(), storage_.GetInlinedData(), other_values, - other.storage_.GetSize()); - - storage_.SetInlinedSize(other.storage_.GetSize()); - } - } - - // Creates an inlined vector by moving in the contents of `other` with a copy - // of `allocator`. - // - // NOTE: if `other`'s allocator is not equal to `allocator`, even if `other` - // contains allocated memory, this move constructor will still allocate. Since - // allocation is performed, this constructor can only be `noexcept` if the - // specified allocator is also `noexcept`. - InlinedVector( - InlinedVector&& other, - const allocator_type& - allocator) noexcept(absl::allocator_is_nothrow::value) - : storage_(allocator) { - if (IsMemcpyOk::value) { - storage_.MemcpyFrom(other.storage_); - - other.storage_.SetInlinedSize(0); - } else if ((storage_.GetAllocator() == other.storage_.GetAllocator()) && - other.storage_.GetIsAllocated()) { - storage_.SetAllocation({other.storage_.GetAllocatedData(), - other.storage_.GetAllocatedCapacity()}); - storage_.SetAllocatedSize(other.storage_.GetSize()); - - other.storage_.SetInlinedSize(0); - } else { - storage_.Initialize(IteratorValueAdapter>( - MoveIterator(other.data())), - other.size()); - } - } - - ~InlinedVector() {} - - // --------------------------------------------------------------------------- - // InlinedVector Member Accessors - // --------------------------------------------------------------------------- - - // `InlinedVector::empty()` - // - // Returns whether the inlined vector contains no elements. - bool empty() const noexcept { return !size(); } - - // `InlinedVector::size()` - // - // Returns the number of elements in the inlined vector. - size_type size() const noexcept { return storage_.GetSize(); } - - // `InlinedVector::max_size()` - // - // Returns the maximum number of elements the inlined vector can hold. - size_type max_size() const noexcept { - // One bit of the size storage is used to indicate whether the inlined - // vector contains allocated memory. As a result, the maximum size that the - // inlined vector can express is the minimum of the limit of how many - // objects we can allocate and std::numeric_limits::max() / 2. - return (std::min)(AllocatorTraits::max_size(storage_.GetAllocator()), - (std::numeric_limits::max)() / 2); - } - - // `InlinedVector::capacity()` - // - // Returns the number of elements that could be stored in the inlined vector - // without requiring a reallocation. - // - // NOTE: for most inlined vectors, `capacity()` should be equal to the - // template parameter `N`. For inlined vectors which exceed this capacity, - // they will no longer be inlined and `capacity()` will equal the capactity of - // the allocated memory. - size_type capacity() const noexcept { - return storage_.GetIsAllocated() ? storage_.GetAllocatedCapacity() - : storage_.GetInlinedCapacity(); - } - - // `InlinedVector::data()` - // - // Returns a `pointer` to the elements of the inlined vector. This pointer - // can be used to access and modify the contained elements. - // - // NOTE: only elements within [`data()`, `data() + size()`) are valid. - pointer data() noexcept { - return storage_.GetIsAllocated() ? storage_.GetAllocatedData() - : storage_.GetInlinedData(); - } - - // Overload of `InlinedVector::data()` that returns a `const_pointer` to the - // elements of the inlined vector. This pointer can be used to access but not - // modify the contained elements. - // - // NOTE: only elements within [`data()`, `data() + size()`) are valid. - const_pointer data() const noexcept { - return storage_.GetIsAllocated() ? storage_.GetAllocatedData() - : storage_.GetInlinedData(); - } - - // `InlinedVector::operator[](...)` - // - // Returns a `reference` to the `i`th element of the inlined vector. - reference operator[](size_type i) { - ABSL_HARDENING_ASSERT(i < size()); - return data()[i]; - } - - // Overload of `InlinedVector::operator[](...)` that returns a - // `const_reference` to the `i`th element of the inlined vector. - const_reference operator[](size_type i) const { - ABSL_HARDENING_ASSERT(i < size()); - return data()[i]; - } - - // `InlinedVector::at(...)` - // - // Returns a `reference` to the `i`th element of the inlined vector. - // - // NOTE: if `i` is not within the required range of `InlinedVector::at(...)`, - // in both debug and non-debug builds, `std::out_of_range` will be thrown. - reference at(size_type i) { - if (ABSL_PREDICT_FALSE(i >= size())) { - base_internal::ThrowStdOutOfRange( - "`InlinedVector::at(size_type)` failed bounds check"); - } - return data()[i]; - } - - // Overload of `InlinedVector::at(...)` that returns a `const_reference` to - // the `i`th element of the inlined vector. - // - // NOTE: if `i` is not within the required range of `InlinedVector::at(...)`, - // in both debug and non-debug builds, `std::out_of_range` will be thrown. - const_reference at(size_type i) const { - if (ABSL_PREDICT_FALSE(i >= size())) { - base_internal::ThrowStdOutOfRange( - "`InlinedVector::at(size_type) const` failed bounds check"); - } - return data()[i]; - } - - // `InlinedVector::front()` - // - // Returns a `reference` to the first element of the inlined vector. - reference front() { - ABSL_HARDENING_ASSERT(!empty()); - return data()[0]; - } - - // Overload of `InlinedVector::front()` that returns a `const_reference` to - // the first element of the inlined vector. - const_reference front() const { - ABSL_HARDENING_ASSERT(!empty()); - return data()[0]; - } - - // `InlinedVector::back()` - // - // Returns a `reference` to the last element of the inlined vector. - reference back() { - ABSL_HARDENING_ASSERT(!empty()); - return data()[size() - 1]; - } - - // Overload of `InlinedVector::back()` that returns a `const_reference` to the - // last element of the inlined vector. - const_reference back() const { - ABSL_HARDENING_ASSERT(!empty()); - return data()[size() - 1]; - } - - // `InlinedVector::begin()` - // - // Returns an `iterator` to the beginning of the inlined vector. - iterator begin() noexcept { return data(); } - - // Overload of `InlinedVector::begin()` that returns a `const_iterator` to - // the beginning of the inlined vector. - const_iterator begin() const noexcept { return data(); } - - // `InlinedVector::end()` - // - // Returns an `iterator` to the end of the inlined vector. - iterator end() noexcept { return data() + size(); } - - // Overload of `InlinedVector::end()` that returns a `const_iterator` to the - // end of the inlined vector. - const_iterator end() const noexcept { return data() + size(); } - - // `InlinedVector::cbegin()` - // - // Returns a `const_iterator` to the beginning of the inlined vector. - const_iterator cbegin() const noexcept { return begin(); } - - // `InlinedVector::cend()` - // - // Returns a `const_iterator` to the end of the inlined vector. - const_iterator cend() const noexcept { return end(); } - - // `InlinedVector::rbegin()` - // - // Returns a `reverse_iterator` from the end of the inlined vector. - reverse_iterator rbegin() noexcept { return reverse_iterator(end()); } - - // Overload of `InlinedVector::rbegin()` that returns a - // `const_reverse_iterator` from the end of the inlined vector. - const_reverse_iterator rbegin() const noexcept { - return const_reverse_iterator(end()); - } - - // `InlinedVector::rend()` - // - // Returns a `reverse_iterator` from the beginning of the inlined vector. - reverse_iterator rend() noexcept { return reverse_iterator(begin()); } - - // Overload of `InlinedVector::rend()` that returns a `const_reverse_iterator` - // from the beginning of the inlined vector. - const_reverse_iterator rend() const noexcept { - return const_reverse_iterator(begin()); - } - - // `InlinedVector::crbegin()` - // - // Returns a `const_reverse_iterator` from the end of the inlined vector. - const_reverse_iterator crbegin() const noexcept { return rbegin(); } - - // `InlinedVector::crend()` - // - // Returns a `const_reverse_iterator` from the beginning of the inlined - // vector. - const_reverse_iterator crend() const noexcept { return rend(); } - - // `InlinedVector::get_allocator()` - // - // Returns a copy of the inlined vector's allocator. - allocator_type get_allocator() const { return storage_.GetAllocator(); } - - // --------------------------------------------------------------------------- - // InlinedVector Member Mutators - // --------------------------------------------------------------------------- - - // `InlinedVector::operator=(...)` - // - // Replaces the elements of the inlined vector with copies of the elements of - // `list`. - InlinedVector& operator=(std::initializer_list list) { - assign(list.begin(), list.end()); - - return *this; - } - - // Overload of `InlinedVector::operator=(...)` that replaces the elements of - // the inlined vector with copies of the elements of `other`. - InlinedVector& operator=(const InlinedVector& other) { - if (ABSL_PREDICT_TRUE(this != std::addressof(other))) { - const_pointer other_data = other.data(); - assign(other_data, other_data + other.size()); - } - - return *this; - } - - // Overload of `InlinedVector::operator=(...)` that moves the elements of - // `other` into the inlined vector. - // - // NOTE: as a result of calling this overload, `other` is left in a valid but - // unspecified state. - InlinedVector& operator=(InlinedVector&& other) { - if (ABSL_PREDICT_TRUE(this != std::addressof(other))) { - MoveAssignment(MoveAssignmentPolicy{}, std::move(other)); - } - - return *this; - } - - // `InlinedVector::assign(...)` - // - // Replaces the contents of the inlined vector with `n` copies of `v`. - void assign(size_type n, const_reference v) { - storage_.Assign(CopyValueAdapter(std::addressof(v)), n); - } - - // Overload of `InlinedVector::assign(...)` that replaces the contents of the - // inlined vector with copies of the elements of `list`. - void assign(std::initializer_list list) { - assign(list.begin(), list.end()); - } - - // Overload of `InlinedVector::assign(...)` to replace the contents of the - // inlined vector with the range [`first`, `last`). - // - // NOTE: this overload is for iterators that are "forward" category or better. - template = 0> - void assign(ForwardIterator first, ForwardIterator last) { - storage_.Assign(IteratorValueAdapter(first), - static_cast(std::distance(first, last))); - } - - // Overload of `InlinedVector::assign(...)` to replace the contents of the - // inlined vector with the range [`first`, `last`). - // - // NOTE: this overload is for iterators that are "input" category. - template = 0> - void assign(InputIterator first, InputIterator last) { - size_type i = 0; - for (; i < size() && first != last; ++i, static_cast(++first)) { - data()[i] = *first; - } - - erase(data() + i, data() + size()); - std::copy(first, last, std::back_inserter(*this)); - } - - // `InlinedVector::resize(...)` - // - // Resizes the inlined vector to contain `n` elements. - // - // NOTE: If `n` is smaller than `size()`, extra elements are destroyed. If `n` - // is larger than `size()`, new elements are value-initialized. - void resize(size_type n) { - ABSL_HARDENING_ASSERT(n <= max_size()); - storage_.Resize(DefaultValueAdapter(), n); - } - - // Overload of `InlinedVector::resize(...)` that resizes the inlined vector to - // contain `n` elements. - // - // NOTE: if `n` is smaller than `size()`, extra elements are destroyed. If `n` - // is larger than `size()`, new elements are copied-constructed from `v`. - void resize(size_type n, const_reference v) { - ABSL_HARDENING_ASSERT(n <= max_size()); - storage_.Resize(CopyValueAdapter(std::addressof(v)), n); - } - - // `InlinedVector::insert(...)` - // - // Inserts a copy of `v` at `pos`, returning an `iterator` to the newly - // inserted element. - iterator insert(const_iterator pos, const_reference v) { - return emplace(pos, v); - } - - // Overload of `InlinedVector::insert(...)` that inserts `v` at `pos` using - // move semantics, returning an `iterator` to the newly inserted element. - iterator insert(const_iterator pos, value_type&& v) { - return emplace(pos, std::move(v)); - } - - // Overload of `InlinedVector::insert(...)` that inserts `n` contiguous copies - // of `v` starting at `pos`, returning an `iterator` pointing to the first of - // the newly inserted elements. - iterator insert(const_iterator pos, size_type n, const_reference v) { - ABSL_HARDENING_ASSERT(pos >= begin()); - ABSL_HARDENING_ASSERT(pos <= end()); - - if (ABSL_PREDICT_TRUE(n != 0)) { - value_type dealias = v; - // https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102329#c2 - // It appears that GCC thinks that since `pos` is a const pointer and may - // point to uninitialized memory at this point, a warning should be - // issued. But `pos` is actually only used to compute an array index to - // write to. -#if !defined(__clang__) && defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" -#endif - return storage_.Insert(pos, CopyValueAdapter(std::addressof(dealias)), - n); -#if !defined(__clang__) && defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - } else { - return const_cast(pos); - } - } - - // Overload of `InlinedVector::insert(...)` that inserts copies of the - // elements of `list` starting at `pos`, returning an `iterator` pointing to - // the first of the newly inserted elements. - iterator insert(const_iterator pos, std::initializer_list list) { - return insert(pos, list.begin(), list.end()); - } - - // Overload of `InlinedVector::insert(...)` that inserts the range [`first`, - // `last`) starting at `pos`, returning an `iterator` pointing to the first - // of the newly inserted elements. - // - // NOTE: this overload is for iterators that are "forward" category or better. - template = 0> - iterator insert(const_iterator pos, ForwardIterator first, - ForwardIterator last) { - ABSL_HARDENING_ASSERT(pos >= begin()); - ABSL_HARDENING_ASSERT(pos <= end()); - - if (ABSL_PREDICT_TRUE(first != last)) { - return storage_.Insert( - pos, IteratorValueAdapter(first), - static_cast(std::distance(first, last))); - } else { - return const_cast(pos); - } - } - - // Overload of `InlinedVector::insert(...)` that inserts the range [`first`, - // `last`) starting at `pos`, returning an `iterator` pointing to the first - // of the newly inserted elements. - // - // NOTE: this overload is for iterators that are "input" category. - template = 0> - iterator insert(const_iterator pos, InputIterator first, InputIterator last) { - ABSL_HARDENING_ASSERT(pos >= begin()); - ABSL_HARDENING_ASSERT(pos <= end()); - - size_type index = static_cast(std::distance(cbegin(), pos)); - for (size_type i = index; first != last; ++i, static_cast(++first)) { - insert(data() + i, *first); - } - - return iterator(data() + index); - } - - // `InlinedVector::emplace(...)` - // - // Constructs and inserts an element using `args...` in the inlined vector at - // `pos`, returning an `iterator` pointing to the newly emplaced element. - template - iterator emplace(const_iterator pos, Args&&... args) { - ABSL_HARDENING_ASSERT(pos >= begin()); - ABSL_HARDENING_ASSERT(pos <= end()); - - value_type dealias(std::forward(args)...); - // https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102329#c2 - // It appears that GCC thinks that since `pos` is a const pointer and may - // point to uninitialized memory at this point, a warning should be - // issued. But `pos` is actually only used to compute an array index to - // write to. -#if !defined(__clang__) && defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wmaybe-uninitialized" -#endif - return storage_.Insert(pos, - IteratorValueAdapter>( - MoveIterator(std::addressof(dealias))), - 1); -#if !defined(__clang__) && defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - } - - // `InlinedVector::emplace_back(...)` - // - // Constructs and inserts an element using `args...` in the inlined vector at - // `end()`, returning a `reference` to the newly emplaced element. - template - reference emplace_back(Args&&... args) { - return storage_.EmplaceBack(std::forward(args)...); - } - - // `InlinedVector::push_back(...)` - // - // Inserts a copy of `v` in the inlined vector at `end()`. - void push_back(const_reference v) { static_cast(emplace_back(v)); } - - // Overload of `InlinedVector::push_back(...)` for inserting `v` at `end()` - // using move semantics. - void push_back(value_type&& v) { - static_cast(emplace_back(std::move(v))); - } - - // `InlinedVector::pop_back()` - // - // Destroys the element at `back()`, reducing the size by `1`. - void pop_back() noexcept { - ABSL_HARDENING_ASSERT(!empty()); - - AllocatorTraits::destroy(storage_.GetAllocator(), data() + (size() - 1)); - storage_.SubtractSize(1); - } - - // `InlinedVector::erase(...)` - // - // Erases the element at `pos`, returning an `iterator` pointing to where the - // erased element was located. - // - // NOTE: may return `end()`, which is not dereferencable. - iterator erase(const_iterator pos) { - ABSL_HARDENING_ASSERT(pos >= begin()); - ABSL_HARDENING_ASSERT(pos < end()); - - return storage_.Erase(pos, pos + 1); - } - - // Overload of `InlinedVector::erase(...)` that erases every element in the - // range [`from`, `to`), returning an `iterator` pointing to where the first - // erased element was located. - // - // NOTE: may return `end()`, which is not dereferencable. - iterator erase(const_iterator from, const_iterator to) { - ABSL_HARDENING_ASSERT(from >= begin()); - ABSL_HARDENING_ASSERT(from <= to); - ABSL_HARDENING_ASSERT(to <= end()); - - if (ABSL_PREDICT_TRUE(from != to)) { - return storage_.Erase(from, to); - } else { - return const_cast(from); - } - } - - // `InlinedVector::clear()` - // - // Destroys all elements in the inlined vector, setting the size to `0` and - // deallocating any held memory. - void clear() noexcept { - inlined_vector_internal::DestroyAdapter::DestroyElements( - storage_.GetAllocator(), data(), size()); - storage_.DeallocateIfAllocated(); - - storage_.SetInlinedSize(0); - } - - // `InlinedVector::reserve(...)` - // - // Ensures that there is enough room for at least `n` elements. - void reserve(size_type n) { storage_.Reserve(n); } - - // `InlinedVector::shrink_to_fit()` - // - // Attempts to reduce memory usage by moving elements to (or keeping elements - // in) the smallest available buffer sufficient for containing `size()` - // elements. - // - // If `size()` is sufficiently small, the elements will be moved into (or kept - // in) the inlined space. - void shrink_to_fit() { - if (storage_.GetIsAllocated()) { - storage_.ShrinkToFit(); - } - } - - // `InlinedVector::swap(...)` - // - // Swaps the contents of the inlined vector with `other`. - void swap(InlinedVector& other) { - if (ABSL_PREDICT_TRUE(this != std::addressof(other))) { - storage_.Swap(std::addressof(other.storage_)); - } - } - - private: - template - friend H AbslHashValue(H h, const absl::InlinedVector& a); - - void MoveAssignment(MemcpyPolicy, InlinedVector&& other) { - inlined_vector_internal::DestroyAdapter::DestroyElements( - storage_.GetAllocator(), data(), size()); - storage_.DeallocateIfAllocated(); - storage_.MemcpyFrom(other.storage_); - - other.storage_.SetInlinedSize(0); - } - - void MoveAssignment(ElementwiseAssignPolicy, InlinedVector&& other) { - if (other.storage_.GetIsAllocated()) { - MoveAssignment(MemcpyPolicy{}, std::move(other)); - } else { - storage_.Assign(IteratorValueAdapter>( - MoveIterator(other.storage_.GetInlinedData())), - other.size()); - } - } - - void MoveAssignment(ElementwiseConstructPolicy, InlinedVector&& other) { - if (other.storage_.GetIsAllocated()) { - MoveAssignment(MemcpyPolicy{}, std::move(other)); - } else { - inlined_vector_internal::DestroyAdapter::DestroyElements( - storage_.GetAllocator(), data(), size()); - storage_.DeallocateIfAllocated(); - - IteratorValueAdapter> other_values( - MoveIterator(other.storage_.GetInlinedData())); - inlined_vector_internal::ConstructElements( - storage_.GetAllocator(), storage_.GetInlinedData(), other_values, - other.storage_.GetSize()); - storage_.SetInlinedSize(other.storage_.GetSize()); - } - } - - Storage storage_; -}; - -// ----------------------------------------------------------------------------- -// InlinedVector Non-Member Functions -// ----------------------------------------------------------------------------- - -// `swap(...)` -// -// Swaps the contents of two inlined vectors. -template -void swap(absl::InlinedVector& a, - absl::InlinedVector& b) noexcept(noexcept(a.swap(b))) { - a.swap(b); -} - -// `operator==(...)` -// -// Tests for value-equality of two inlined vectors. -template -bool operator==(const absl::InlinedVector& a, - const absl::InlinedVector& b) { - auto a_data = a.data(); - auto b_data = b.data(); - return absl::equal(a_data, a_data + a.size(), b_data, b_data + b.size()); -} - -// `operator!=(...)` -// -// Tests for value-inequality of two inlined vectors. -template -bool operator!=(const absl::InlinedVector& a, - const absl::InlinedVector& b) { - return !(a == b); -} - -// `operator<(...)` -// -// Tests whether the value of an inlined vector is less than the value of -// another inlined vector using a lexicographical comparison algorithm. -template -bool operator<(const absl::InlinedVector& a, - const absl::InlinedVector& b) { - auto a_data = a.data(); - auto b_data = b.data(); - return std::lexicographical_compare(a_data, a_data + a.size(), b_data, - b_data + b.size()); -} - -// `operator>(...)` -// -// Tests whether the value of an inlined vector is greater than the value of -// another inlined vector using a lexicographical comparison algorithm. -template -bool operator>(const absl::InlinedVector& a, - const absl::InlinedVector& b) { - return b < a; -} - -// `operator<=(...)` -// -// Tests whether the value of an inlined vector is less than or equal to the -// value of another inlined vector using a lexicographical comparison algorithm. -template -bool operator<=(const absl::InlinedVector& a, - const absl::InlinedVector& b) { - return !(b < a); -} - -// `operator>=(...)` -// -// Tests whether the value of an inlined vector is greater than or equal to the -// value of another inlined vector using a lexicographical comparison algorithm. -template -bool operator>=(const absl::InlinedVector& a, - const absl::InlinedVector& b) { - return !(a < b); -} - -// `AbslHashValue(...)` -// -// Provides `absl::Hash` support for `absl::InlinedVector`. It is uncommon to -// call this directly. -template -H AbslHashValue(H h, const absl::InlinedVector& a) { - auto size = a.size(); - return H::combine(H::combine_contiguous(std::move(h), a.data(), size), size); -} - -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_CONTAINER_INLINED_VECTOR_H_ diff --git a/src/third_party/abseil-cpp/absl/container/inlined_vector_benchmark.cc b/src/third_party/abseil-cpp/absl/container/inlined_vector_benchmark.cc deleted file mode 100644 index 56a6bfd23a..0000000000 --- a/src/third_party/abseil-cpp/absl/container/inlined_vector_benchmark.cc +++ /dev/null @@ -1,829 +0,0 @@ -// Copyright 2019 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include -#include -#include - -#include "absl/base/internal/raw_logging.h" -#include "absl/base/macros.h" -#include "absl/container/inlined_vector.h" -#include "absl/strings/str_cat.h" -#include "benchmark/benchmark.h" - -namespace { - -void BM_InlinedVectorFill(benchmark::State& state) { - const int len = state.range(0); - absl::InlinedVector v; - v.reserve(len); - for (auto _ : state) { - v.resize(0); // Use resize(0) as InlinedVector releases storage on clear(). - for (int i = 0; i < len; ++i) { - v.push_back(i); - } - benchmark::DoNotOptimize(v); - } -} -BENCHMARK(BM_InlinedVectorFill)->Range(1, 256); - -void BM_InlinedVectorFillRange(benchmark::State& state) { - const int len = state.range(0); - const std::vector src(len, len); - absl::InlinedVector v; - v.reserve(len); - for (auto _ : state) { - benchmark::DoNotOptimize(src); - v.assign(src.begin(), src.end()); - benchmark::DoNotOptimize(v); - } -} -BENCHMARK(BM_InlinedVectorFillRange)->Range(1, 256); - -void BM_StdVectorFill(benchmark::State& state) { - const int len = state.range(0); - std::vector v; - v.reserve(len); - for (auto _ : state) { - v.clear(); - for (int i = 0; i < len; ++i) { - v.push_back(i); - } - benchmark::DoNotOptimize(v); - } -} -BENCHMARK(BM_StdVectorFill)->Range(1, 256); - -// The purpose of the next two benchmarks is to verify that -// absl::InlinedVector is efficient when moving is more efficent than -// copying. To do so, we use strings that are larger than the short -// string optimization. -bool StringRepresentedInline(std::string s) { - const char* chars = s.data(); - std::string s1 = std::move(s); - return s1.data() != chars; -} - -int GetNonShortStringOptimizationSize() { - for (int i = 24; i <= 192; i *= 2) { - if (!StringRepresentedInline(std::string(i, 'A'))) { - return i; - } - } - ABSL_RAW_LOG( - FATAL, - "Failed to find a string larger than the short string optimization"); - return -1; -} - -void BM_InlinedVectorFillString(benchmark::State& state) { - const int len = state.range(0); - const int no_sso = GetNonShortStringOptimizationSize(); - std::string strings[4] = {std::string(no_sso, 'A'), std::string(no_sso, 'B'), - std::string(no_sso, 'C'), std::string(no_sso, 'D')}; - - for (auto _ : state) { - absl::InlinedVector v; - for (int i = 0; i < len; i++) { - v.push_back(strings[i & 3]); - } - } - state.SetItemsProcessed(static_cast(state.iterations()) * len); -} -BENCHMARK(BM_InlinedVectorFillString)->Range(0, 1024); - -void BM_StdVectorFillString(benchmark::State& state) { - const int len = state.range(0); - const int no_sso = GetNonShortStringOptimizationSize(); - std::string strings[4] = {std::string(no_sso, 'A'), std::string(no_sso, 'B'), - std::string(no_sso, 'C'), std::string(no_sso, 'D')}; - - for (auto _ : state) { - std::vector v; - for (int i = 0; i < len; i++) { - v.push_back(strings[i & 3]); - } - } - state.SetItemsProcessed(static_cast(state.iterations()) * len); -} -BENCHMARK(BM_StdVectorFillString)->Range(0, 1024); - -struct Buffer { // some arbitrary structure for benchmarking. - char* base; - int length; - int capacity; - void* user_data; -}; - -void BM_InlinedVectorAssignments(benchmark::State& state) { - const int len = state.range(0); - using BufferVec = absl::InlinedVector; - - BufferVec src; - src.resize(len); - - BufferVec dst; - for (auto _ : state) { - benchmark::DoNotOptimize(dst); - benchmark::DoNotOptimize(src); - dst = src; - } -} -BENCHMARK(BM_InlinedVectorAssignments) - ->Arg(0) - ->Arg(1) - ->Arg(2) - ->Arg(3) - ->Arg(4) - ->Arg(20); - -void BM_CreateFromContainer(benchmark::State& state) { - for (auto _ : state) { - absl::InlinedVector src{1, 2, 3}; - benchmark::DoNotOptimize(src); - absl::InlinedVector dst(std::move(src)); - benchmark::DoNotOptimize(dst); - } -} -BENCHMARK(BM_CreateFromContainer); - -struct LargeCopyableOnly { - LargeCopyableOnly() : d(1024, 17) {} - LargeCopyableOnly(const LargeCopyableOnly& o) = default; - LargeCopyableOnly& operator=(const LargeCopyableOnly& o) = default; - - std::vector d; -}; - -struct LargeCopyableSwappable { - LargeCopyableSwappable() : d(1024, 17) {} - - LargeCopyableSwappable(const LargeCopyableSwappable& o) = default; - - LargeCopyableSwappable& operator=(LargeCopyableSwappable o) { - using std::swap; - swap(*this, o); - return *this; - } - - friend void swap(LargeCopyableSwappable& a, LargeCopyableSwappable& b) { - using std::swap; - swap(a.d, b.d); - } - - std::vector d; -}; - -struct LargeCopyableMovable { - LargeCopyableMovable() : d(1024, 17) {} - // Use implicitly defined copy and move. - - std::vector d; -}; - -struct LargeCopyableMovableSwappable { - LargeCopyableMovableSwappable() : d(1024, 17) {} - LargeCopyableMovableSwappable(const LargeCopyableMovableSwappable& o) = - default; - LargeCopyableMovableSwappable(LargeCopyableMovableSwappable&& o) = default; - - LargeCopyableMovableSwappable& operator=(LargeCopyableMovableSwappable o) { - using std::swap; - swap(*this, o); - return *this; - } - LargeCopyableMovableSwappable& operator=(LargeCopyableMovableSwappable&& o) = - default; - - friend void swap(LargeCopyableMovableSwappable& a, - LargeCopyableMovableSwappable& b) { - using std::swap; - swap(a.d, b.d); - } - - std::vector d; -}; - -template -void BM_SwapElements(benchmark::State& state) { - const int len = state.range(0); - using Vec = absl::InlinedVector; - Vec a(len); - Vec b; - for (auto _ : state) { - using std::swap; - benchmark::DoNotOptimize(a); - benchmark::DoNotOptimize(b); - swap(a, b); - } -} -BENCHMARK_TEMPLATE(BM_SwapElements, LargeCopyableOnly)->Range(0, 1024); -BENCHMARK_TEMPLATE(BM_SwapElements, LargeCopyableSwappable)->Range(0, 1024); -BENCHMARK_TEMPLATE(BM_SwapElements, LargeCopyableMovable)->Range(0, 1024); -BENCHMARK_TEMPLATE(BM_SwapElements, LargeCopyableMovableSwappable) - ->Range(0, 1024); - -// The following benchmark is meant to track the efficiency of the vector size -// as a function of stored type via the benchmark label. It is not meant to -// output useful sizeof operator performance. The loop is a dummy operation -// to fulfill the requirement of running the benchmark. -template -void BM_Sizeof(benchmark::State& state) { - int size = 0; - for (auto _ : state) { - VecType vec; - size = sizeof(vec); - } - state.SetLabel(absl::StrCat("sz=", size)); -} -BENCHMARK_TEMPLATE(BM_Sizeof, absl::InlinedVector); -BENCHMARK_TEMPLATE(BM_Sizeof, absl::InlinedVector); -BENCHMARK_TEMPLATE(BM_Sizeof, absl::InlinedVector); -BENCHMARK_TEMPLATE(BM_Sizeof, absl::InlinedVector); - -BENCHMARK_TEMPLATE(BM_Sizeof, absl::InlinedVector); -BENCHMARK_TEMPLATE(BM_Sizeof, absl::InlinedVector); -BENCHMARK_TEMPLATE(BM_Sizeof, absl::InlinedVector); -BENCHMARK_TEMPLATE(BM_Sizeof, absl::InlinedVector); - -BENCHMARK_TEMPLATE(BM_Sizeof, absl::InlinedVector); -BENCHMARK_TEMPLATE(BM_Sizeof, absl::InlinedVector); -BENCHMARK_TEMPLATE(BM_Sizeof, absl::InlinedVector); -BENCHMARK_TEMPLATE(BM_Sizeof, absl::InlinedVector); - -BENCHMARK_TEMPLATE(BM_Sizeof, absl::InlinedVector); -BENCHMARK_TEMPLATE(BM_Sizeof, absl::InlinedVector); -BENCHMARK_TEMPLATE(BM_Sizeof, absl::InlinedVector); -BENCHMARK_TEMPLATE(BM_Sizeof, absl::InlinedVector); - -void BM_InlinedVectorIndexInlined(benchmark::State& state) { - absl::InlinedVector v = {1, 2, 3, 4, 5, 6, 7}; - for (auto _ : state) { - benchmark::DoNotOptimize(v); - benchmark::DoNotOptimize(v[4]); - } -} -BENCHMARK(BM_InlinedVectorIndexInlined); - -void BM_InlinedVectorIndexExternal(benchmark::State& state) { - absl::InlinedVector v = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; - for (auto _ : state) { - benchmark::DoNotOptimize(v); - benchmark::DoNotOptimize(v[4]); - } -} -BENCHMARK(BM_InlinedVectorIndexExternal); - -void BM_StdVectorIndex(benchmark::State& state) { - std::vector v = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; - for (auto _ : state) { - benchmark::DoNotOptimize(v); - benchmark::DoNotOptimize(v[4]); - } -} -BENCHMARK(BM_StdVectorIndex); - -void BM_InlinedVectorDataInlined(benchmark::State& state) { - absl::InlinedVector v = {1, 2, 3, 4, 5, 6, 7}; - for (auto _ : state) { - benchmark::DoNotOptimize(v); - benchmark::DoNotOptimize(v.data()); - } -} -BENCHMARK(BM_InlinedVectorDataInlined); - -void BM_InlinedVectorDataExternal(benchmark::State& state) { - absl::InlinedVector v = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; - for (auto _ : state) { - benchmark::DoNotOptimize(v); - benchmark::DoNotOptimize(v.data()); - } - state.SetItemsProcessed(16 * static_cast(state.iterations())); -} -BENCHMARK(BM_InlinedVectorDataExternal); - -void BM_StdVectorData(benchmark::State& state) { - std::vector v = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; - for (auto _ : state) { - benchmark::DoNotOptimize(v); - benchmark::DoNotOptimize(v.data()); - } - state.SetItemsProcessed(16 * static_cast(state.iterations())); -} -BENCHMARK(BM_StdVectorData); - -void BM_InlinedVectorSizeInlined(benchmark::State& state) { - absl::InlinedVector v = {1, 2, 3, 4, 5, 6, 7}; - for (auto _ : state) { - benchmark::DoNotOptimize(v); - benchmark::DoNotOptimize(v.size()); - } -} -BENCHMARK(BM_InlinedVectorSizeInlined); - -void BM_InlinedVectorSizeExternal(benchmark::State& state) { - absl::InlinedVector v = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; - for (auto _ : state) { - benchmark::DoNotOptimize(v); - benchmark::DoNotOptimize(v.size()); - } -} -BENCHMARK(BM_InlinedVectorSizeExternal); - -void BM_StdVectorSize(benchmark::State& state) { - std::vector v = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; - for (auto _ : state) { - benchmark::DoNotOptimize(v); - benchmark::DoNotOptimize(v.size()); - } -} -BENCHMARK(BM_StdVectorSize); - -void BM_InlinedVectorEmptyInlined(benchmark::State& state) { - absl::InlinedVector v = {1, 2, 3, 4, 5, 6, 7}; - for (auto _ : state) { - benchmark::DoNotOptimize(v); - benchmark::DoNotOptimize(v.empty()); - } -} -BENCHMARK(BM_InlinedVectorEmptyInlined); - -void BM_InlinedVectorEmptyExternal(benchmark::State& state) { - absl::InlinedVector v = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; - for (auto _ : state) { - benchmark::DoNotOptimize(v); - benchmark::DoNotOptimize(v.empty()); - } -} -BENCHMARK(BM_InlinedVectorEmptyExternal); - -void BM_StdVectorEmpty(benchmark::State& state) { - std::vector v = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; - for (auto _ : state) { - benchmark::DoNotOptimize(v); - benchmark::DoNotOptimize(v.empty()); - } -} -BENCHMARK(BM_StdVectorEmpty); - -constexpr size_t kInlinedCapacity = 4; -constexpr size_t kLargeSize = kInlinedCapacity * 2; -constexpr size_t kSmallSize = kInlinedCapacity / 2; -constexpr size_t kBatchSize = 100; - -#define ABSL_INTERNAL_BENCHMARK_ONE_SIZE(BM_FunctionTemplate, T) \ - BENCHMARK_TEMPLATE(BM_FunctionTemplate, T, kLargeSize); \ - BENCHMARK_TEMPLATE(BM_FunctionTemplate, T, kSmallSize) - -#define ABSL_INTERNAL_BENCHMARK_TWO_SIZE(BM_FunctionTemplate, T) \ - BENCHMARK_TEMPLATE(BM_FunctionTemplate, T, kLargeSize, kLargeSize); \ - BENCHMARK_TEMPLATE(BM_FunctionTemplate, T, kLargeSize, kSmallSize); \ - BENCHMARK_TEMPLATE(BM_FunctionTemplate, T, kSmallSize, kLargeSize); \ - BENCHMARK_TEMPLATE(BM_FunctionTemplate, T, kSmallSize, kSmallSize) - -template -using InlVec = absl::InlinedVector; - -struct TrivialType { - size_t val; -}; - -class NontrivialType { - public: - ABSL_ATTRIBUTE_NOINLINE NontrivialType() : val_() { - benchmark::DoNotOptimize(*this); - } - - ABSL_ATTRIBUTE_NOINLINE NontrivialType(const NontrivialType& other) - : val_(other.val_) { - benchmark::DoNotOptimize(*this); - } - - ABSL_ATTRIBUTE_NOINLINE NontrivialType& operator=( - const NontrivialType& other) { - val_ = other.val_; - benchmark::DoNotOptimize(*this); - return *this; - } - - ABSL_ATTRIBUTE_NOINLINE ~NontrivialType() noexcept { - benchmark::DoNotOptimize(*this); - } - - private: - size_t val_; -}; - -template -void BatchedBenchmark(benchmark::State& state, PrepareVecFn prepare_vec, - TestVecFn test_vec) { - std::array, kBatchSize> vector_batch{}; - - while (state.KeepRunningBatch(kBatchSize)) { - // Prepare batch - state.PauseTiming(); - for (size_t i = 0; i < kBatchSize; ++i) { - prepare_vec(vector_batch.data() + i, i); - } - benchmark::DoNotOptimize(vector_batch); - state.ResumeTiming(); - - // Test batch - for (size_t i = 0; i < kBatchSize; ++i) { - test_vec(vector_batch.data() + i, i); - } - } -} - -template -void BM_ConstructFromSize(benchmark::State& state) { - using VecT = InlVec; - auto size = ToSize; - BatchedBenchmark( - state, - /* prepare_vec = */ [](InlVec* vec, size_t) { vec->~VecT(); }, - /* test_vec = */ - [&](void* ptr, size_t) { - benchmark::DoNotOptimize(size); - ::new (ptr) VecT(size); - }); -} -ABSL_INTERNAL_BENCHMARK_ONE_SIZE(BM_ConstructFromSize, TrivialType); -ABSL_INTERNAL_BENCHMARK_ONE_SIZE(BM_ConstructFromSize, NontrivialType); - -template -void BM_ConstructFromSizeRef(benchmark::State& state) { - using VecT = InlVec; - auto size = ToSize; - auto ref = T(); - BatchedBenchmark( - state, - /* prepare_vec = */ [](InlVec* vec, size_t) { vec->~VecT(); }, - /* test_vec = */ - [&](void* ptr, size_t) { - benchmark::DoNotOptimize(size); - benchmark::DoNotOptimize(ref); - ::new (ptr) VecT(size, ref); - }); -} -ABSL_INTERNAL_BENCHMARK_ONE_SIZE(BM_ConstructFromSizeRef, TrivialType); -ABSL_INTERNAL_BENCHMARK_ONE_SIZE(BM_ConstructFromSizeRef, NontrivialType); - -template -void BM_ConstructFromRange(benchmark::State& state) { - using VecT = InlVec; - std::array arr{}; - BatchedBenchmark( - state, - /* prepare_vec = */ [](InlVec* vec, size_t) { vec->~VecT(); }, - /* test_vec = */ - [&](void* ptr, size_t) { - benchmark::DoNotOptimize(arr); - ::new (ptr) VecT(arr.begin(), arr.end()); - }); -} -ABSL_INTERNAL_BENCHMARK_ONE_SIZE(BM_ConstructFromRange, TrivialType); -ABSL_INTERNAL_BENCHMARK_ONE_SIZE(BM_ConstructFromRange, NontrivialType); - -template -void BM_ConstructFromCopy(benchmark::State& state) { - using VecT = InlVec; - VecT other_vec(ToSize); - BatchedBenchmark( - state, - /* prepare_vec = */ - [](InlVec* vec, size_t) { vec->~VecT(); }, - /* test_vec = */ - [&](void* ptr, size_t) { - benchmark::DoNotOptimize(other_vec); - ::new (ptr) VecT(other_vec); - }); -} -ABSL_INTERNAL_BENCHMARK_ONE_SIZE(BM_ConstructFromCopy, TrivialType); -ABSL_INTERNAL_BENCHMARK_ONE_SIZE(BM_ConstructFromCopy, NontrivialType); - -template -void BM_ConstructFromMove(benchmark::State& state) { - using VecT = InlVec; - std::array vector_batch{}; - BatchedBenchmark( - state, - /* prepare_vec = */ - [&](InlVec* vec, size_t i) { - vector_batch[i].clear(); - vector_batch[i].resize(ToSize); - vec->~VecT(); - }, - /* test_vec = */ - [&](void* ptr, size_t i) { - benchmark::DoNotOptimize(vector_batch[i]); - ::new (ptr) VecT(std::move(vector_batch[i])); - }); -} -ABSL_INTERNAL_BENCHMARK_ONE_SIZE(BM_ConstructFromMove, TrivialType); -ABSL_INTERNAL_BENCHMARK_ONE_SIZE(BM_ConstructFromMove, NontrivialType); - -// Measure cost of copy-constructor+destructor. -void BM_CopyTrivial(benchmark::State& state) { - const int n = state.range(0); - InlVec src(n); - for (auto s : state) { - InlVec copy(src); - benchmark::DoNotOptimize(copy); - } -} -BENCHMARK(BM_CopyTrivial)->Arg(0)->Arg(1)->Arg(kLargeSize); - -// Measure cost of copy-constructor+destructor. -void BM_CopyNonTrivial(benchmark::State& state) { - const int n = state.range(0); - InlVec> src(n); - for (auto s : state) { - InlVec> copy(src); - benchmark::DoNotOptimize(copy); - } -} -BENCHMARK(BM_CopyNonTrivial)->Arg(0)->Arg(1)->Arg(kLargeSize); - -template -void BM_AssignSizeRef(benchmark::State& state) { - auto size = ToSize; - auto ref = T(); - BatchedBenchmark( - state, - /* prepare_vec = */ [](InlVec* vec, size_t) { vec->resize(FromSize); }, - /* test_vec = */ - [&](InlVec* vec, size_t) { - benchmark::DoNotOptimize(size); - benchmark::DoNotOptimize(ref); - vec->assign(size, ref); - }); -} -ABSL_INTERNAL_BENCHMARK_TWO_SIZE(BM_AssignSizeRef, TrivialType); -ABSL_INTERNAL_BENCHMARK_TWO_SIZE(BM_AssignSizeRef, NontrivialType); - -template -void BM_AssignRange(benchmark::State& state) { - std::array arr{}; - BatchedBenchmark( - state, - /* prepare_vec = */ [](InlVec* vec, size_t) { vec->resize(FromSize); }, - /* test_vec = */ - [&](InlVec* vec, size_t) { - benchmark::DoNotOptimize(arr); - vec->assign(arr.begin(), arr.end()); - }); -} -ABSL_INTERNAL_BENCHMARK_TWO_SIZE(BM_AssignRange, TrivialType); -ABSL_INTERNAL_BENCHMARK_TWO_SIZE(BM_AssignRange, NontrivialType); - -template -void BM_AssignFromCopy(benchmark::State& state) { - InlVec other_vec(ToSize); - BatchedBenchmark( - state, - /* prepare_vec = */ [](InlVec* vec, size_t) { vec->resize(FromSize); }, - /* test_vec = */ - [&](InlVec* vec, size_t) { - benchmark::DoNotOptimize(other_vec); - *vec = other_vec; - }); -} -ABSL_INTERNAL_BENCHMARK_TWO_SIZE(BM_AssignFromCopy, TrivialType); -ABSL_INTERNAL_BENCHMARK_TWO_SIZE(BM_AssignFromCopy, NontrivialType); - -template -void BM_AssignFromMove(benchmark::State& state) { - using VecT = InlVec; - std::array vector_batch{}; - BatchedBenchmark( - state, - /* prepare_vec = */ - [&](InlVec* vec, size_t i) { - vector_batch[i].clear(); - vector_batch[i].resize(ToSize); - vec->resize(FromSize); - }, - /* test_vec = */ - [&](InlVec* vec, size_t i) { - benchmark::DoNotOptimize(vector_batch[i]); - *vec = std::move(vector_batch[i]); - }); -} -ABSL_INTERNAL_BENCHMARK_TWO_SIZE(BM_AssignFromMove, TrivialType); -ABSL_INTERNAL_BENCHMARK_TWO_SIZE(BM_AssignFromMove, NontrivialType); - -template -void BM_ResizeSize(benchmark::State& state) { - BatchedBenchmark( - state, - /* prepare_vec = */ - [](InlVec* vec, size_t) { - vec->clear(); - vec->resize(FromSize); - }, - /* test_vec = */ - [](InlVec* vec, size_t) { vec->resize(ToSize); }); -} -ABSL_INTERNAL_BENCHMARK_TWO_SIZE(BM_ResizeSize, TrivialType); -ABSL_INTERNAL_BENCHMARK_TWO_SIZE(BM_ResizeSize, NontrivialType); - -template -void BM_ResizeSizeRef(benchmark::State& state) { - auto t = T(); - BatchedBenchmark( - state, - /* prepare_vec = */ - [](InlVec* vec, size_t) { - vec->clear(); - vec->resize(FromSize); - }, - /* test_vec = */ - [&](InlVec* vec, size_t) { - benchmark::DoNotOptimize(t); - vec->resize(ToSize, t); - }); -} -ABSL_INTERNAL_BENCHMARK_TWO_SIZE(BM_ResizeSizeRef, TrivialType); -ABSL_INTERNAL_BENCHMARK_TWO_SIZE(BM_ResizeSizeRef, NontrivialType); - -template -void BM_InsertSizeRef(benchmark::State& state) { - auto t = T(); - BatchedBenchmark( - state, - /* prepare_vec = */ - [](InlVec* vec, size_t) { - vec->clear(); - vec->resize(FromSize); - }, - /* test_vec = */ - [&](InlVec* vec, size_t) { - benchmark::DoNotOptimize(t); - auto* pos = vec->data() + (vec->size() / 2); - vec->insert(pos, t); - }); -} -ABSL_INTERNAL_BENCHMARK_TWO_SIZE(BM_InsertSizeRef, TrivialType); -ABSL_INTERNAL_BENCHMARK_TWO_SIZE(BM_InsertSizeRef, NontrivialType); - -template -void BM_InsertRange(benchmark::State& state) { - InlVec other_vec(ToSize); - BatchedBenchmark( - state, - /* prepare_vec = */ - [](InlVec* vec, size_t) { - vec->clear(); - vec->resize(FromSize); - }, - /* test_vec = */ - [&](InlVec* vec, size_t) { - benchmark::DoNotOptimize(other_vec); - auto* pos = vec->data() + (vec->size() / 2); - vec->insert(pos, other_vec.begin(), other_vec.end()); - }); -} -ABSL_INTERNAL_BENCHMARK_TWO_SIZE(BM_InsertRange, TrivialType); -ABSL_INTERNAL_BENCHMARK_TWO_SIZE(BM_InsertRange, NontrivialType); - -template -void BM_EmplaceBack(benchmark::State& state) { - BatchedBenchmark( - state, - /* prepare_vec = */ - [](InlVec* vec, size_t) { - vec->clear(); - vec->resize(FromSize); - }, - /* test_vec = */ - [](InlVec* vec, size_t) { vec->emplace_back(); }); -} -ABSL_INTERNAL_BENCHMARK_ONE_SIZE(BM_EmplaceBack, TrivialType); -ABSL_INTERNAL_BENCHMARK_ONE_SIZE(BM_EmplaceBack, NontrivialType); - -template -void BM_PopBack(benchmark::State& state) { - BatchedBenchmark( - state, - /* prepare_vec = */ - [](InlVec* vec, size_t) { - vec->clear(); - vec->resize(FromSize); - }, - /* test_vec = */ - [](InlVec* vec, size_t) { vec->pop_back(); }); -} -ABSL_INTERNAL_BENCHMARK_ONE_SIZE(BM_PopBack, TrivialType); -ABSL_INTERNAL_BENCHMARK_ONE_SIZE(BM_PopBack, NontrivialType); - -template -void BM_EraseOne(benchmark::State& state) { - BatchedBenchmark( - state, - /* prepare_vec = */ - [](InlVec* vec, size_t) { - vec->clear(); - vec->resize(FromSize); - }, - /* test_vec = */ - [](InlVec* vec, size_t) { - auto* pos = vec->data() + (vec->size() / 2); - vec->erase(pos); - }); -} -ABSL_INTERNAL_BENCHMARK_ONE_SIZE(BM_EraseOne, TrivialType); -ABSL_INTERNAL_BENCHMARK_ONE_SIZE(BM_EraseOne, NontrivialType); - -template -void BM_EraseRange(benchmark::State& state) { - BatchedBenchmark( - state, - /* prepare_vec = */ - [](InlVec* vec, size_t) { - vec->clear(); - vec->resize(FromSize); - }, - /* test_vec = */ - [](InlVec* vec, size_t) { - auto* pos = vec->data() + (vec->size() / 2); - vec->erase(pos, pos + 1); - }); -} -ABSL_INTERNAL_BENCHMARK_ONE_SIZE(BM_EraseRange, TrivialType); -ABSL_INTERNAL_BENCHMARK_ONE_SIZE(BM_EraseRange, NontrivialType); - -template -void BM_Clear(benchmark::State& state) { - BatchedBenchmark( - state, - /* prepare_vec = */ [](InlVec* vec, size_t) { vec->resize(FromSize); }, - /* test_vec = */ [](InlVec* vec, size_t) { vec->clear(); }); -} -ABSL_INTERNAL_BENCHMARK_ONE_SIZE(BM_Clear, TrivialType); -ABSL_INTERNAL_BENCHMARK_ONE_SIZE(BM_Clear, NontrivialType); - -template -void BM_Reserve(benchmark::State& state) { - BatchedBenchmark( - state, - /* prepare_vec = */ - [](InlVec* vec, size_t) { - vec->clear(); - vec->resize(FromSize); - }, - /* test_vec = */ - [](InlVec* vec, size_t) { vec->reserve(ToCapacity); }); -} -ABSL_INTERNAL_BENCHMARK_TWO_SIZE(BM_Reserve, TrivialType); -ABSL_INTERNAL_BENCHMARK_TWO_SIZE(BM_Reserve, NontrivialType); - -template -void BM_ShrinkToFit(benchmark::State& state) { - BatchedBenchmark( - state, - /* prepare_vec = */ - [](InlVec* vec, size_t) { - vec->clear(); - vec->resize(ToCapacity); - vec->reserve(FromCapacity); - }, - /* test_vec = */ [](InlVec* vec, size_t) { vec->shrink_to_fit(); }); -} -ABSL_INTERNAL_BENCHMARK_TWO_SIZE(BM_ShrinkToFit, TrivialType); -ABSL_INTERNAL_BENCHMARK_TWO_SIZE(BM_ShrinkToFit, NontrivialType); - -template -void BM_Swap(benchmark::State& state) { - using VecT = InlVec; - std::array vector_batch{}; - BatchedBenchmark( - state, - /* prepare_vec = */ - [&](InlVec* vec, size_t i) { - vector_batch[i].clear(); - vector_batch[i].resize(ToSize); - vec->resize(FromSize); - }, - /* test_vec = */ - [&](InlVec* vec, size_t i) { - using std::swap; - benchmark::DoNotOptimize(vector_batch[i]); - swap(*vec, vector_batch[i]); - }); -} -ABSL_INTERNAL_BENCHMARK_TWO_SIZE(BM_Swap, TrivialType); -ABSL_INTERNAL_BENCHMARK_TWO_SIZE(BM_Swap, NontrivialType); - -} // namespace diff --git a/src/third_party/abseil-cpp/absl/container/inlined_vector_exception_safety_test.cc b/src/third_party/abseil-cpp/absl/container/inlined_vector_exception_safety_test.cc deleted file mode 100644 index 0e6a05b5f6..0000000000 --- a/src/third_party/abseil-cpp/absl/container/inlined_vector_exception_safety_test.cc +++ /dev/null @@ -1,508 +0,0 @@ -// Copyright 2019 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/container/inlined_vector.h" - -#include "absl/base/config.h" - -#if defined(ABSL_HAVE_EXCEPTIONS) - -#include -#include -#include -#include -#include - -#include "gtest/gtest.h" -#include "absl/base/internal/exception_safety_testing.h" - -namespace { - -constexpr size_t kInlinedCapacity = 4; -constexpr size_t kLargeSize = kInlinedCapacity * 2; -constexpr size_t kSmallSize = kInlinedCapacity / 2; - -using Thrower = testing::ThrowingValue<>; -using MovableThrower = testing::ThrowingValue; -using ThrowAlloc = testing::ThrowingAllocator; - -using ThrowerVec = absl::InlinedVector; -using MovableThrowerVec = absl::InlinedVector; - -using ThrowAllocThrowerVec = - absl::InlinedVector; -using ThrowAllocMovableThrowerVec = - absl::InlinedVector; - -// In GCC, if an element of a `std::initializer_list` throws during construction -// the elements that were constructed before it are not destroyed. This causes -// incorrect exception safety test failures. Thus, `testing::nothrow_ctor` is -// required. See: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66139 -#define ABSL_INTERNAL_MAKE_INIT_LIST(T, N) \ - (N > kInlinedCapacity \ - ? std::initializer_list{T(0, testing::nothrow_ctor), \ - T(1, testing::nothrow_ctor), \ - T(2, testing::nothrow_ctor), \ - T(3, testing::nothrow_ctor), \ - T(4, testing::nothrow_ctor), \ - T(5, testing::nothrow_ctor), \ - T(6, testing::nothrow_ctor), \ - T(7, testing::nothrow_ctor)} \ - \ - : std::initializer_list{T(0, testing::nothrow_ctor), \ - T(1, testing::nothrow_ctor)}) -static_assert(kLargeSize == 8, "Must update ABSL_INTERNAL_MAKE_INIT_LIST(...)"); -static_assert(kSmallSize == 2, "Must update ABSL_INTERNAL_MAKE_INIT_LIST(...)"); - -template -class TestParams { - public: - using VecT = TheVecT; - constexpr static size_t GetSizeAt(size_t i) { return kSizes[1 + i]; } - - private: - constexpr static size_t kSizes[1 + sizeof...(TheSizes)] = {1, TheSizes...}; -}; - -using NoSizeTestParams = - ::testing::Types, TestParams, - TestParams, - TestParams>; - -using OneSizeTestParams = - ::testing::Types, - TestParams, - TestParams, - TestParams, - TestParams, - TestParams, - TestParams, - TestParams>; - -using TwoSizeTestParams = ::testing::Types< - TestParams, - TestParams, - TestParams, - TestParams, - TestParams, - TestParams, - TestParams, - TestParams, - TestParams, - TestParams, - TestParams, - TestParams, - TestParams, - TestParams, - TestParams, - TestParams>; - -template -struct NoSizeTest : ::testing::Test {}; -TYPED_TEST_SUITE(NoSizeTest, NoSizeTestParams); - -template -struct OneSizeTest : ::testing::Test {}; -TYPED_TEST_SUITE(OneSizeTest, OneSizeTestParams); - -template -struct TwoSizeTest : ::testing::Test {}; -TYPED_TEST_SUITE(TwoSizeTest, TwoSizeTestParams); - -template -bool InlinedVectorInvariants(VecT* vec) { - if (*vec != *vec) return false; - if (vec->size() > vec->capacity()) return false; - if (vec->size() > vec->max_size()) return false; - if (vec->capacity() > vec->max_size()) return false; - if (vec->data() != std::addressof(vec->at(0))) return false; - if (vec->data() != vec->begin()) return false; - if (*vec->data() != *vec->begin()) return false; - if (vec->begin() > vec->end()) return false; - if ((vec->end() - vec->begin()) != vec->size()) return false; - if (std::distance(vec->begin(), vec->end()) != vec->size()) return false; - return true; -} - -// Function that always returns false is correct, but refactoring is required -// for clarity. It's needed to express that, as a contract, certain operations -// should not throw at all. Execution of this function means an exception was -// thrown and thus the test should fail. -// TODO(johnsoncj): Add `testing::NoThrowGuarantee` to the framework -template -bool NoThrowGuarantee(VecT* /* vec */) { - return false; -} - -TYPED_TEST(NoSizeTest, DefaultConstructor) { - using VecT = typename TypeParam::VecT; - using allocator_type = typename VecT::allocator_type; - - testing::TestThrowingCtor(); - - testing::TestThrowingCtor(allocator_type{}); -} - -TYPED_TEST(OneSizeTest, SizeConstructor) { - using VecT = typename TypeParam::VecT; - using allocator_type = typename VecT::allocator_type; - constexpr static auto size = TypeParam::GetSizeAt(0); - - testing::TestThrowingCtor(size); - - testing::TestThrowingCtor(size, allocator_type{}); -} - -TYPED_TEST(OneSizeTest, SizeRefConstructor) { - using VecT = typename TypeParam::VecT; - using value_type = typename VecT::value_type; - using allocator_type = typename VecT::allocator_type; - constexpr static auto size = TypeParam::GetSizeAt(0); - - testing::TestThrowingCtor(size, value_type{}); - - testing::TestThrowingCtor(size, value_type{}, allocator_type{}); -} - -TYPED_TEST(OneSizeTest, InitializerListConstructor) { - using VecT = typename TypeParam::VecT; - using value_type = typename VecT::value_type; - using allocator_type = typename VecT::allocator_type; - constexpr static auto size = TypeParam::GetSizeAt(0); - - testing::TestThrowingCtor( - ABSL_INTERNAL_MAKE_INIT_LIST(value_type, size)); - - testing::TestThrowingCtor( - ABSL_INTERNAL_MAKE_INIT_LIST(value_type, size), allocator_type{}); -} - -TYPED_TEST(OneSizeTest, RangeConstructor) { - using VecT = typename TypeParam::VecT; - using value_type = typename VecT::value_type; - using allocator_type = typename VecT::allocator_type; - constexpr static auto size = TypeParam::GetSizeAt(0); - - std::array arr{}; - - testing::TestThrowingCtor(arr.begin(), arr.end()); - - testing::TestThrowingCtor(arr.begin(), arr.end(), allocator_type{}); -} - -TYPED_TEST(OneSizeTest, CopyConstructor) { - using VecT = typename TypeParam::VecT; - using allocator_type = typename VecT::allocator_type; - constexpr static auto size = TypeParam::GetSizeAt(0); - - VecT other_vec{size}; - - testing::TestThrowingCtor(other_vec); - - testing::TestThrowingCtor(other_vec, allocator_type{}); -} - -TYPED_TEST(OneSizeTest, MoveConstructor) { - using VecT = typename TypeParam::VecT; - using allocator_type = typename VecT::allocator_type; - constexpr static auto size = TypeParam::GetSizeAt(0); - - if (!absl::allocator_is_nothrow::value) { - testing::TestThrowingCtor(VecT{size}); - - testing::TestThrowingCtor(VecT{size}, allocator_type{}); - } -} - -TYPED_TEST(TwoSizeTest, Assign) { - using VecT = typename TypeParam::VecT; - using value_type = typename VecT::value_type; - constexpr static auto from_size = TypeParam::GetSizeAt(0); - constexpr static auto to_size = TypeParam::GetSizeAt(1); - - auto tester = testing::MakeExceptionSafetyTester() - .WithInitialValue(VecT{from_size}) - .WithContracts(InlinedVectorInvariants); - - EXPECT_TRUE(tester.Test([](VecT* vec) { - *vec = ABSL_INTERNAL_MAKE_INIT_LIST(value_type, to_size); - })); - - EXPECT_TRUE(tester.Test([](VecT* vec) { - VecT other_vec{to_size}; - *vec = other_vec; - })); - - EXPECT_TRUE(tester.Test([](VecT* vec) { - VecT other_vec{to_size}; - *vec = std::move(other_vec); - })); - - EXPECT_TRUE(tester.Test([](VecT* vec) { - value_type val{}; - vec->assign(to_size, val); - })); - - EXPECT_TRUE(tester.Test([](VecT* vec) { - vec->assign(ABSL_INTERNAL_MAKE_INIT_LIST(value_type, to_size)); - })); - - EXPECT_TRUE(tester.Test([](VecT* vec) { - std::array arr{}; - vec->assign(arr.begin(), arr.end()); - })); -} - -TYPED_TEST(TwoSizeTest, Resize) { - using VecT = typename TypeParam::VecT; - using value_type = typename VecT::value_type; - constexpr static auto from_size = TypeParam::GetSizeAt(0); - constexpr static auto to_size = TypeParam::GetSizeAt(1); - - auto tester = testing::MakeExceptionSafetyTester() - .WithInitialValue(VecT{from_size}) - .WithContracts(InlinedVectorInvariants, - testing::strong_guarantee); - - EXPECT_TRUE(tester.Test([](VecT* vec) { - vec->resize(to_size); // - })); - - EXPECT_TRUE(tester.Test([](VecT* vec) { - vec->resize(to_size, value_type{}); // - })); -} - -TYPED_TEST(OneSizeTest, Insert) { - using VecT = typename TypeParam::VecT; - using value_type = typename VecT::value_type; - constexpr static auto from_size = TypeParam::GetSizeAt(0); - - auto tester = testing::MakeExceptionSafetyTester() - .WithInitialValue(VecT{from_size}) - .WithContracts(InlinedVectorInvariants); - - EXPECT_TRUE(tester.Test([](VecT* vec) { - auto it = vec->begin(); - vec->insert(it, value_type{}); - })); - EXPECT_TRUE(tester.Test([](VecT* vec) { - auto it = vec->begin() + (vec->size() / 2); - vec->insert(it, value_type{}); - })); - EXPECT_TRUE(tester.Test([](VecT* vec) { - auto it = vec->end(); - vec->insert(it, value_type{}); - })); -} - -TYPED_TEST(TwoSizeTest, Insert) { - using VecT = typename TypeParam::VecT; - using value_type = typename VecT::value_type; - constexpr static auto from_size = TypeParam::GetSizeAt(0); - constexpr static auto count = TypeParam::GetSizeAt(1); - - auto tester = testing::MakeExceptionSafetyTester() - .WithInitialValue(VecT{from_size}) - .WithContracts(InlinedVectorInvariants); - - EXPECT_TRUE(tester.Test([](VecT* vec) { - auto it = vec->begin(); - vec->insert(it, count, value_type{}); - })); - EXPECT_TRUE(tester.Test([](VecT* vec) { - auto it = vec->begin() + (vec->size() / 2); - vec->insert(it, count, value_type{}); - })); - EXPECT_TRUE(tester.Test([](VecT* vec) { - auto it = vec->end(); - vec->insert(it, count, value_type{}); - })); - - EXPECT_TRUE(tester.Test([](VecT* vec) { - auto it = vec->begin(); - vec->insert(it, ABSL_INTERNAL_MAKE_INIT_LIST(value_type, count)); - })); - EXPECT_TRUE(tester.Test([](VecT* vec) { - auto it = vec->begin() + (vec->size() / 2); - vec->insert(it, ABSL_INTERNAL_MAKE_INIT_LIST(value_type, count)); - })); - EXPECT_TRUE(tester.Test([](VecT* vec) { - auto it = vec->end(); - vec->insert(it, ABSL_INTERNAL_MAKE_INIT_LIST(value_type, count)); - })); - - EXPECT_TRUE(tester.Test([](VecT* vec) { - auto it = vec->begin(); - std::array arr{}; - vec->insert(it, arr.begin(), arr.end()); - })); - EXPECT_TRUE(tester.Test([](VecT* vec) { - auto it = vec->begin() + (vec->size() / 2); - std::array arr{}; - vec->insert(it, arr.begin(), arr.end()); - })); - EXPECT_TRUE(tester.Test([](VecT* vec) { - auto it = vec->end(); - std::array arr{}; - vec->insert(it, arr.begin(), arr.end()); - })); -} - -TYPED_TEST(OneSizeTest, EmplaceBack) { - using VecT = typename TypeParam::VecT; - constexpr static auto size = TypeParam::GetSizeAt(0); - - // For testing calls to `emplace_back(...)` that reallocate. - VecT full_vec{size}; - full_vec.resize(full_vec.capacity()); - - // For testing calls to `emplace_back(...)` that don't reallocate. - VecT nonfull_vec{size}; - nonfull_vec.reserve(size + 1); - - auto tester = testing::MakeExceptionSafetyTester().WithContracts( - InlinedVectorInvariants); - - EXPECT_TRUE(tester.WithInitialValue(nonfull_vec).Test([](VecT* vec) { - vec->emplace_back(); - })); - - EXPECT_TRUE(tester.WithInitialValue(full_vec).Test( - [](VecT* vec) { vec->emplace_back(); })); -} - -TYPED_TEST(OneSizeTest, PopBack) { - using VecT = typename TypeParam::VecT; - constexpr static auto size = TypeParam::GetSizeAt(0); - - auto tester = testing::MakeExceptionSafetyTester() - .WithInitialValue(VecT{size}) - .WithContracts(NoThrowGuarantee); - - EXPECT_TRUE(tester.Test([](VecT* vec) { - vec->pop_back(); // - })); -} - -TYPED_TEST(OneSizeTest, Erase) { - using VecT = typename TypeParam::VecT; - constexpr static auto size = TypeParam::GetSizeAt(0); - - auto tester = testing::MakeExceptionSafetyTester() - .WithInitialValue(VecT{size}) - .WithContracts(InlinedVectorInvariants); - - EXPECT_TRUE(tester.Test([](VecT* vec) { - auto it = vec->begin(); - vec->erase(it); - })); - EXPECT_TRUE(tester.Test([](VecT* vec) { - auto it = vec->begin() + (vec->size() / 2); - vec->erase(it); - })); - EXPECT_TRUE(tester.Test([](VecT* vec) { - auto it = vec->begin() + (vec->size() - 1); - vec->erase(it); - })); - - EXPECT_TRUE(tester.Test([](VecT* vec) { - auto it = vec->begin(); - vec->erase(it, it); - })); - EXPECT_TRUE(tester.Test([](VecT* vec) { - auto it = vec->begin() + (vec->size() / 2); - vec->erase(it, it); - })); - EXPECT_TRUE(tester.Test([](VecT* vec) { - auto it = vec->begin() + (vec->size() - 1); - vec->erase(it, it); - })); - - EXPECT_TRUE(tester.Test([](VecT* vec) { - auto it = vec->begin(); - vec->erase(it, it + 1); - })); - EXPECT_TRUE(tester.Test([](VecT* vec) { - auto it = vec->begin() + (vec->size() / 2); - vec->erase(it, it + 1); - })); - EXPECT_TRUE(tester.Test([](VecT* vec) { - auto it = vec->begin() + (vec->size() - 1); - vec->erase(it, it + 1); - })); -} - -TYPED_TEST(OneSizeTest, Clear) { - using VecT = typename TypeParam::VecT; - constexpr static auto size = TypeParam::GetSizeAt(0); - - auto tester = testing::MakeExceptionSafetyTester() - .WithInitialValue(VecT{size}) - .WithContracts(NoThrowGuarantee); - - EXPECT_TRUE(tester.Test([](VecT* vec) { - vec->clear(); // - })); -} - -TYPED_TEST(TwoSizeTest, Reserve) { - using VecT = typename TypeParam::VecT; - constexpr static auto from_size = TypeParam::GetSizeAt(0); - constexpr static auto to_capacity = TypeParam::GetSizeAt(1); - - auto tester = testing::MakeExceptionSafetyTester() - .WithInitialValue(VecT{from_size}) - .WithContracts(InlinedVectorInvariants); - - EXPECT_TRUE(tester.Test([](VecT* vec) { vec->reserve(to_capacity); })); -} - -TYPED_TEST(OneSizeTest, ShrinkToFit) { - using VecT = typename TypeParam::VecT; - constexpr static auto size = TypeParam::GetSizeAt(0); - - auto tester = testing::MakeExceptionSafetyTester() - .WithInitialValue(VecT{size}) - .WithContracts(InlinedVectorInvariants); - - EXPECT_TRUE(tester.Test([](VecT* vec) { - vec->shrink_to_fit(); // - })); -} - -TYPED_TEST(TwoSizeTest, Swap) { - using VecT = typename TypeParam::VecT; - constexpr static auto from_size = TypeParam::GetSizeAt(0); - constexpr static auto to_size = TypeParam::GetSizeAt(1); - - auto tester = testing::MakeExceptionSafetyTester() - .WithInitialValue(VecT{from_size}) - .WithContracts(InlinedVectorInvariants); - - EXPECT_TRUE(tester.Test([](VecT* vec) { - VecT other_vec{to_size}; - vec->swap(other_vec); - })); - - EXPECT_TRUE(tester.Test([](VecT* vec) { - using std::swap; - VecT other_vec{to_size}; - swap(*vec, other_vec); - })); -} - -} // namespace - -#endif // defined(ABSL_HAVE_EXCEPTIONS) diff --git a/src/third_party/abseil-cpp/absl/container/inlined_vector_test.cc b/src/third_party/abseil-cpp/absl/container/inlined_vector_test.cc deleted file mode 100644 index 898b40db16..0000000000 --- a/src/third_party/abseil-cpp/absl/container/inlined_vector_test.cc +++ /dev/null @@ -1,2060 +0,0 @@ -// Copyright 2019 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/container/inlined_vector.h" - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "gmock/gmock.h" -#include "gtest/gtest.h" -#include "absl/base/attributes.h" -#include "absl/base/internal/exception_testing.h" -#include "absl/base/internal/raw_logging.h" -#include "absl/base/macros.h" -#include "absl/base/options.h" -#include "absl/container/internal/counting_allocator.h" -#include "absl/container/internal/test_instance_tracker.h" -#include "absl/hash/hash_testing.h" -#include "absl/memory/memory.h" -#include "absl/strings/str_cat.h" - -namespace { - -using absl::container_internal::CountingAllocator; -using absl::test_internal::CopyableMovableInstance; -using absl::test_internal::CopyableOnlyInstance; -using absl::test_internal::InstanceTracker; -using testing::AllOf; -using testing::Each; -using testing::ElementsAre; -using testing::ElementsAreArray; -using testing::Eq; -using testing::Gt; -using testing::Pointwise; -using testing::PrintToString; - -using IntVec = absl::InlinedVector; - -MATCHER_P(SizeIs, n, "") { - return testing::ExplainMatchResult(n, arg.size(), result_listener); -} - -MATCHER_P(CapacityIs, n, "") { - return testing::ExplainMatchResult(n, arg.capacity(), result_listener); -} - -MATCHER_P(ValueIs, e, "") { - return testing::ExplainMatchResult(e, arg.value(), result_listener); -} - -// TODO(bsamwel): Add support for movable-only types. - -// Test fixture for typed tests on BaseCountedInstance derived classes, see -// test_instance_tracker.h. -template -class InstanceTest : public ::testing::Test {}; -TYPED_TEST_SUITE_P(InstanceTest); - -// A simple reference counted class to make sure that the proper elements are -// destroyed in the erase(begin, end) test. -class RefCounted { - public: - RefCounted(int value, int* count) : value_(value), count_(count) { Ref(); } - - RefCounted(const RefCounted& v) : value_(v.value_), count_(v.count_) { - Ref(); - } - - ~RefCounted() { - Unref(); - count_ = nullptr; - } - - friend void swap(RefCounted& a, RefCounted& b) { - using std::swap; - swap(a.value_, b.value_); - swap(a.count_, b.count_); - } - - RefCounted& operator=(RefCounted v) { - using std::swap; - swap(*this, v); - return *this; - } - - void Ref() const { - ABSL_RAW_CHECK(count_ != nullptr, ""); - ++(*count_); - } - - void Unref() const { - --(*count_); - ABSL_RAW_CHECK(*count_ >= 0, ""); - } - - int value_; - int* count_; -}; - -using RefCountedVec = absl::InlinedVector; - -// A class with a vtable pointer -class Dynamic { - public: - virtual ~Dynamic() {} -}; - -using DynamicVec = absl::InlinedVector; - -// Append 0..len-1 to *v -template -static void Fill(Container* v, size_t len, int offset = 0) { - for (size_t i = 0; i < len; i++) { - v->push_back(static_cast(i) + offset); - } -} - -static IntVec Fill(size_t len, int offset = 0) { - IntVec v; - Fill(&v, len, offset); - return v; -} - -TEST(IntVec, SimpleOps) { - for (size_t len = 0; len < 20; len++) { - IntVec v; - const IntVec& cv = v; // const alias - - Fill(&v, len); - EXPECT_EQ(len, v.size()); - EXPECT_LE(len, v.capacity()); - - for (size_t i = 0; i < len; i++) { - EXPECT_EQ(static_cast(i), v[i]); - EXPECT_EQ(static_cast(i), v.at(i)); - } - EXPECT_EQ(v.begin(), v.data()); - EXPECT_EQ(cv.begin(), cv.data()); - - size_t counter = 0; - for (IntVec::iterator iter = v.begin(); iter != v.end(); ++iter) { - EXPECT_EQ(static_cast(counter), *iter); - counter++; - } - EXPECT_EQ(counter, len); - - counter = 0; - for (IntVec::const_iterator iter = v.begin(); iter != v.end(); ++iter) { - EXPECT_EQ(static_cast(counter), *iter); - counter++; - } - EXPECT_EQ(counter, len); - - counter = 0; - for (IntVec::const_iterator iter = v.cbegin(); iter != v.cend(); ++iter) { - EXPECT_EQ(static_cast(counter), *iter); - counter++; - } - EXPECT_EQ(counter, len); - - if (len > 0) { - EXPECT_EQ(0, v.front()); - EXPECT_EQ(static_cast(len - 1), v.back()); - v.pop_back(); - EXPECT_EQ(len - 1, v.size()); - for (size_t i = 0; i < v.size(); ++i) { - EXPECT_EQ(static_cast(i), v[i]); - EXPECT_EQ(static_cast(i), v.at(i)); - } - } - } -} - -TEST(IntVec, PopBackNoOverflow) { - IntVec v = {1}; - v.pop_back(); - EXPECT_EQ(v.size(), 0u); -} - -TEST(IntVec, AtThrows) { - IntVec v = {1, 2, 3}; - EXPECT_EQ(v.at(2), 3); - ABSL_BASE_INTERNAL_EXPECT_FAIL(v.at(3), std::out_of_range, - "failed bounds check"); -} - -TEST(IntVec, ReverseIterator) { - for (size_t len = 0; len < 20; len++) { - IntVec v; - Fill(&v, len); - - size_t counter = len; - for (IntVec::reverse_iterator iter = v.rbegin(); iter != v.rend(); ++iter) { - counter--; - EXPECT_EQ(static_cast(counter), *iter); - } - EXPECT_EQ(counter, 0u); - - counter = len; - for (IntVec::const_reverse_iterator iter = v.rbegin(); iter != v.rend(); - ++iter) { - counter--; - EXPECT_EQ(static_cast(counter), *iter); - } - EXPECT_EQ(counter, 0u); - - counter = len; - for (IntVec::const_reverse_iterator iter = v.crbegin(); iter != v.crend(); - ++iter) { - counter--; - EXPECT_EQ(static_cast(counter), *iter); - } - EXPECT_EQ(counter, 0u); - } -} - -TEST(IntVec, Erase) { - for (size_t len = 1; len < 20; len++) { - for (size_t i = 0; i < len; ++i) { - IntVec v; - Fill(&v, len); - v.erase(v.begin() + i); - EXPECT_EQ(len - 1, v.size()); - for (size_t j = 0; j < i; ++j) { - EXPECT_EQ(static_cast(j), v[j]); - } - for (size_t j = i; j < len - 1; ++j) { - EXPECT_EQ(static_cast(j + 1), v[j]); - } - } - } -} - -TEST(IntVec, Hardened) { - IntVec v; - Fill(&v, 10); - EXPECT_EQ(v[9], 9); -#if !defined(NDEBUG) || ABSL_OPTION_HARDENED - EXPECT_DEATH_IF_SUPPORTED(v[10], ""); - EXPECT_DEATH_IF_SUPPORTED(v[static_cast(-1)], ""); - EXPECT_DEATH_IF_SUPPORTED(v.resize(v.max_size() + 1), ""); -#endif -} - -// At the end of this test loop, the elements between [erase_begin, erase_end) -// should have reference counts == 0, and all others elements should have -// reference counts == 1. -TEST(RefCountedVec, EraseBeginEnd) { - for (size_t len = 1; len < 20; ++len) { - for (size_t erase_begin = 0; erase_begin < len; ++erase_begin) { - for (size_t erase_end = erase_begin; erase_end <= len; ++erase_end) { - std::vector counts(len, 0); - RefCountedVec v; - for (size_t i = 0; i < len; ++i) { - v.push_back(RefCounted(static_cast(i), &counts[i])); - } - - size_t erase_len = erase_end - erase_begin; - - v.erase(v.begin() + erase_begin, v.begin() + erase_end); - - EXPECT_EQ(len - erase_len, v.size()); - - // Check the elements before the first element erased. - for (size_t i = 0; i < erase_begin; ++i) { - EXPECT_EQ(static_cast(i), v[i].value_); - } - - // Check the elements after the first element erased. - for (size_t i = erase_begin; i < v.size(); ++i) { - EXPECT_EQ(static_cast(i + erase_len), v[i].value_); - } - - // Check that the elements at the beginning are preserved. - for (size_t i = 0; i < erase_begin; ++i) { - EXPECT_EQ(1, counts[i]); - } - - // Check that the erased elements are destroyed - for (size_t i = erase_begin; i < erase_end; ++i) { - EXPECT_EQ(0, counts[i]); - } - - // Check that the elements at the end are preserved. - for (size_t i = erase_end; i < len; ++i) { - EXPECT_EQ(1, counts[i]); - } - } - } - } -} - -struct NoDefaultCtor { - explicit NoDefaultCtor(int) {} -}; -struct NoCopy { - NoCopy() {} - NoCopy(const NoCopy&) = delete; -}; -struct NoAssign { - NoAssign() {} - NoAssign& operator=(const NoAssign&) = delete; -}; -struct MoveOnly { - MoveOnly() {} - MoveOnly(MoveOnly&&) = default; - MoveOnly& operator=(MoveOnly&&) = default; -}; -TEST(InlinedVectorTest, NoDefaultCtor) { - absl::InlinedVector v(10, NoDefaultCtor(2)); - (void)v; -} -TEST(InlinedVectorTest, NoCopy) { - absl::InlinedVector v(10); - (void)v; -} -TEST(InlinedVectorTest, NoAssign) { - absl::InlinedVector v(10); - (void)v; -} -TEST(InlinedVectorTest, MoveOnly) { - absl::InlinedVector v; - v.push_back(MoveOnly{}); - v.push_back(MoveOnly{}); - v.push_back(MoveOnly{}); - v.erase(v.begin()); - v.push_back(MoveOnly{}); - v.erase(v.begin(), v.begin() + 1); - v.insert(v.begin(), MoveOnly{}); - v.emplace(v.begin()); - v.emplace(v.begin(), MoveOnly{}); -} -TEST(InlinedVectorTest, Noexcept) { - EXPECT_TRUE(std::is_nothrow_move_constructible::value); - EXPECT_TRUE((std::is_nothrow_move_constructible< - absl::InlinedVector>::value)); - - struct MoveCanThrow { - MoveCanThrow(MoveCanThrow&&) {} - }; - EXPECT_EQ(absl::default_allocator_is_nothrow::value, - (std::is_nothrow_move_constructible< - absl::InlinedVector>::value)); -} - -TEST(InlinedVectorTest, EmplaceBack) { - absl::InlinedVector, 1> v; - - auto& inlined_element = v.emplace_back("answer", 42); - EXPECT_EQ(&inlined_element, &v[0]); - EXPECT_EQ(inlined_element.first, "answer"); - EXPECT_EQ(inlined_element.second, 42); - - auto& allocated_element = v.emplace_back("taxicab", 1729); - EXPECT_EQ(&allocated_element, &v[1]); - EXPECT_EQ(allocated_element.first, "taxicab"); - EXPECT_EQ(allocated_element.second, 1729); -} - -TEST(InlinedVectorTest, ShrinkToFitGrowingVector) { - absl::InlinedVector, 1> v; - - v.shrink_to_fit(); - EXPECT_EQ(v.capacity(), 1u); - - v.emplace_back("answer", 42); - v.shrink_to_fit(); - EXPECT_EQ(v.capacity(), 1u); - - v.emplace_back("taxicab", 1729); - EXPECT_GE(v.capacity(), 2u); - v.shrink_to_fit(); - EXPECT_EQ(v.capacity(), 2u); - - v.reserve(100); - EXPECT_GE(v.capacity(), 100u); - v.shrink_to_fit(); - EXPECT_EQ(v.capacity(), 2u); -} - -TEST(InlinedVectorTest, ShrinkToFitEdgeCases) { - { - absl::InlinedVector, 1> v; - v.emplace_back("answer", 42); - v.emplace_back("taxicab", 1729); - EXPECT_GE(v.capacity(), 2u); - v.pop_back(); - v.shrink_to_fit(); - EXPECT_EQ(v.capacity(), 1u); - EXPECT_EQ(v[0].first, "answer"); - EXPECT_EQ(v[0].second, 42); - } - - { - absl::InlinedVector v(100); - v.resize(0); - v.shrink_to_fit(); - EXPECT_EQ(v.capacity(), 2u); // inlined capacity - } - - { - absl::InlinedVector v(100); - v.resize(1); - v.shrink_to_fit(); - EXPECT_EQ(v.capacity(), 2u); // inlined capacity - } - - { - absl::InlinedVector v(100); - v.resize(2); - v.shrink_to_fit(); - EXPECT_EQ(v.capacity(), 2u); - } - - { - absl::InlinedVector v(100); - v.resize(3); - v.shrink_to_fit(); - EXPECT_EQ(v.capacity(), 3u); - } -} - -TEST(IntVec, Insert) { - for (size_t len = 0; len < 20; len++) { - for (ptrdiff_t pos = 0; pos <= static_cast(len); pos++) { - { - // Single element - std::vector std_v; - Fill(&std_v, len); - IntVec v; - Fill(&v, len); - - std_v.insert(std_v.begin() + pos, 9999); - IntVec::iterator it = v.insert(v.cbegin() + pos, 9999); - EXPECT_THAT(v, ElementsAreArray(std_v)); - EXPECT_EQ(it, v.cbegin() + pos); - } - { - // n elements - std::vector std_v; - Fill(&std_v, len); - IntVec v; - Fill(&v, len); - - IntVec::size_type n = 5; - std_v.insert(std_v.begin() + pos, n, 9999); - IntVec::iterator it = v.insert(v.cbegin() + pos, n, 9999); - EXPECT_THAT(v, ElementsAreArray(std_v)); - EXPECT_EQ(it, v.cbegin() + pos); - } - { - // Iterator range (random access iterator) - std::vector std_v; - Fill(&std_v, len); - IntVec v; - Fill(&v, len); - - const std::vector input = {9999, 8888, 7777}; - std_v.insert(std_v.begin() + pos, input.cbegin(), input.cend()); - IntVec::iterator it = - v.insert(v.cbegin() + pos, input.cbegin(), input.cend()); - EXPECT_THAT(v, ElementsAreArray(std_v)); - EXPECT_EQ(it, v.cbegin() + pos); - } - { - // Iterator range (forward iterator) - std::vector std_v; - Fill(&std_v, len); - IntVec v; - Fill(&v, len); - - const std::forward_list input = {9999, 8888, 7777}; - std_v.insert(std_v.begin() + pos, input.cbegin(), input.cend()); - IntVec::iterator it = - v.insert(v.cbegin() + pos, input.cbegin(), input.cend()); - EXPECT_THAT(v, ElementsAreArray(std_v)); - EXPECT_EQ(it, v.cbegin() + pos); - } - { - // Iterator range (input iterator) - std::vector std_v; - Fill(&std_v, len); - IntVec v; - Fill(&v, len); - - std_v.insert(std_v.begin() + pos, {9999, 8888, 7777}); - std::istringstream input("9999 8888 7777"); - IntVec::iterator it = - v.insert(v.cbegin() + pos, std::istream_iterator(input), - std::istream_iterator()); - EXPECT_THAT(v, ElementsAreArray(std_v)); - EXPECT_EQ(it, v.cbegin() + pos); - } - { - // Initializer list - std::vector std_v; - Fill(&std_v, len); - IntVec v; - Fill(&v, len); - - std_v.insert(std_v.begin() + pos, {9999, 8888}); - IntVec::iterator it = v.insert(v.cbegin() + pos, {9999, 8888}); - EXPECT_THAT(v, ElementsAreArray(std_v)); - EXPECT_EQ(it, v.cbegin() + pos); - } - } - } -} - -TEST(RefCountedVec, InsertConstructorDestructor) { - // Make sure the proper construction/destruction happen during insert - // operations. - for (size_t len = 0; len < 20; len++) { - SCOPED_TRACE(len); - for (size_t pos = 0; pos <= len; pos++) { - SCOPED_TRACE(pos); - std::vector counts(len, 0); - int inserted_count = 0; - RefCountedVec v; - for (size_t i = 0; i < len; ++i) { - SCOPED_TRACE(i); - v.push_back(RefCounted(static_cast(i), &counts[i])); - } - - EXPECT_THAT(counts, Each(Eq(1))); - - RefCounted insert_element(9999, &inserted_count); - EXPECT_EQ(1, inserted_count); - v.insert(v.begin() + pos, insert_element); - EXPECT_EQ(2, inserted_count); - // Check that the elements at the end are preserved. - EXPECT_THAT(counts, Each(Eq(1))); - EXPECT_EQ(2, inserted_count); - } - } -} - -TEST(IntVec, Resize) { - for (size_t len = 0; len < 20; len++) { - IntVec v; - Fill(&v, len); - - // Try resizing up and down by k elements - static const int kResizeElem = 1000000; - for (size_t k = 0; k < 10; k++) { - // Enlarging resize - v.resize(len + k, kResizeElem); - EXPECT_EQ(len + k, v.size()); - EXPECT_LE(len + k, v.capacity()); - for (size_t i = 0; i < len + k; i++) { - if (i < len) { - EXPECT_EQ(static_cast(i), v[i]); - } else { - EXPECT_EQ(kResizeElem, v[i]); - } - } - - // Shrinking resize - v.resize(len, kResizeElem); - EXPECT_EQ(len, v.size()); - EXPECT_LE(len, v.capacity()); - for (size_t i = 0; i < len; i++) { - EXPECT_EQ(static_cast(i), v[i]); - } - } - } -} - -TEST(IntVec, InitWithLength) { - for (size_t len = 0; len < 20; len++) { - IntVec v(len, 7); - EXPECT_EQ(len, v.size()); - EXPECT_LE(len, v.capacity()); - for (size_t i = 0; i < len; i++) { - EXPECT_EQ(7, v[i]); - } - } -} - -TEST(IntVec, CopyConstructorAndAssignment) { - for (size_t len = 0; len < 20; len++) { - IntVec v; - Fill(&v, len); - EXPECT_EQ(len, v.size()); - EXPECT_LE(len, v.capacity()); - - IntVec v2(v); - EXPECT_TRUE(v == v2) << PrintToString(v) << PrintToString(v2); - - for (size_t start_len = 0; start_len < 20; start_len++) { - IntVec v3; - Fill(&v3, start_len, 99); // Add dummy elements that should go away - v3 = v; - EXPECT_TRUE(v == v3) << PrintToString(v) << PrintToString(v3); - } - } -} - -TEST(IntVec, AliasingCopyAssignment) { - for (size_t len = 0; len < 20; ++len) { - IntVec original; - Fill(&original, len); - IntVec dup = original; - dup = *&dup; - EXPECT_EQ(dup, original); - } -} - -TEST(IntVec, MoveConstructorAndAssignment) { - for (size_t len = 0; len < 20; len++) { - IntVec v_in; - const size_t inlined_capacity = v_in.capacity(); - Fill(&v_in, len); - EXPECT_EQ(len, v_in.size()); - EXPECT_LE(len, v_in.capacity()); - - { - IntVec v_temp(v_in); - auto* old_data = v_temp.data(); - IntVec v_out(std::move(v_temp)); - EXPECT_TRUE(v_in == v_out) << PrintToString(v_in) << PrintToString(v_out); - if (v_in.size() > inlined_capacity) { - // Allocation is moved as a whole, data stays in place. - EXPECT_TRUE(v_out.data() == old_data); - } else { - EXPECT_FALSE(v_out.data() == old_data); - } - } - for (size_t start_len = 0; start_len < 20; start_len++) { - IntVec v_out; - Fill(&v_out, start_len, 99); // Add dummy elements that should go away - IntVec v_temp(v_in); - auto* old_data = v_temp.data(); - v_out = std::move(v_temp); - EXPECT_TRUE(v_in == v_out) << PrintToString(v_in) << PrintToString(v_out); - if (v_in.size() > inlined_capacity) { - // Allocation is moved as a whole, data stays in place. - EXPECT_TRUE(v_out.data() == old_data); - } else { - EXPECT_FALSE(v_out.data() == old_data); - } - } - } -} - -class NotTriviallyDestructible { - public: - NotTriviallyDestructible() : p_(new int(1)) {} - explicit NotTriviallyDestructible(int i) : p_(new int(i)) {} - - NotTriviallyDestructible(const NotTriviallyDestructible& other) - : p_(new int(*other.p_)) {} - - NotTriviallyDestructible& operator=(const NotTriviallyDestructible& other) { - p_ = absl::make_unique(*other.p_); - return *this; - } - - bool operator==(const NotTriviallyDestructible& other) const { - return *p_ == *other.p_; - } - - private: - std::unique_ptr p_; -}; - -TEST(AliasingTest, Emplace) { - for (size_t i = 2; i < 20; ++i) { - absl::InlinedVector vec; - for (size_t j = 0; j < i; ++j) { - vec.push_back(NotTriviallyDestructible(static_cast(j))); - } - vec.emplace(vec.begin(), vec[0]); - EXPECT_EQ(vec[0], vec[1]); - vec.emplace(vec.begin() + i / 2, vec[i / 2]); - EXPECT_EQ(vec[i / 2], vec[i / 2 + 1]); - vec.emplace(vec.end() - 1, vec.back()); - EXPECT_EQ(vec[vec.size() - 2], vec.back()); - } -} - -TEST(AliasingTest, InsertWithCount) { - for (size_t i = 1; i < 20; ++i) { - absl::InlinedVector vec; - for (size_t j = 0; j < i; ++j) { - vec.push_back(NotTriviallyDestructible(static_cast(j))); - } - for (size_t n = 0; n < 5; ++n) { - // We use back where we can because it's guaranteed to become invalidated - vec.insert(vec.begin(), n, vec.back()); - auto b = vec.begin(); - EXPECT_TRUE( - std::all_of(b, b + n, [&vec](const NotTriviallyDestructible& x) { - return x == vec.back(); - })); - - auto m_idx = vec.size() / 2; - vec.insert(vec.begin() + m_idx, n, vec.back()); - auto m = vec.begin() + m_idx; - EXPECT_TRUE( - std::all_of(m, m + n, [&vec](const NotTriviallyDestructible& x) { - return x == vec.back(); - })); - - // We want distinct values so the equality test is meaningful, - // vec[vec.size() - 1] is also almost always invalidated. - auto old_e = vec.size() - 1; - auto val = vec[old_e]; - vec.insert(vec.end(), n, vec[old_e]); - auto e = vec.begin() + old_e; - EXPECT_TRUE(std::all_of( - e, e + n, - [&val](const NotTriviallyDestructible& x) { return x == val; })); - } - } -} - -TEST(OverheadTest, Storage) { - // Check for size overhead. - // In particular, ensure that std::allocator doesn't cost anything to store. - // The union should be absorbing some of the allocation bookkeeping overhead - // in the larger vectors, leaving only the size_ field as overhead. - - struct T { void* val; }; - size_t expected_overhead = sizeof(T); - - EXPECT_EQ((2 * expected_overhead), - sizeof(absl::InlinedVector) - sizeof(T[1])); - EXPECT_EQ(expected_overhead, - sizeof(absl::InlinedVector) - sizeof(T[2])); - EXPECT_EQ(expected_overhead, - sizeof(absl::InlinedVector) - sizeof(T[3])); - EXPECT_EQ(expected_overhead, - sizeof(absl::InlinedVector) - sizeof(T[4])); - EXPECT_EQ(expected_overhead, - sizeof(absl::InlinedVector) - sizeof(T[5])); - EXPECT_EQ(expected_overhead, - sizeof(absl::InlinedVector) - sizeof(T[6])); - EXPECT_EQ(expected_overhead, - sizeof(absl::InlinedVector) - sizeof(T[7])); - EXPECT_EQ(expected_overhead, - sizeof(absl::InlinedVector) - sizeof(T[8])); -} - -TEST(IntVec, Clear) { - for (size_t len = 0; len < 20; len++) { - SCOPED_TRACE(len); - IntVec v; - Fill(&v, len); - v.clear(); - EXPECT_EQ(0u, v.size()); - EXPECT_EQ(v.begin(), v.end()); - } -} - -TEST(IntVec, Reserve) { - for (size_t len = 0; len < 20; len++) { - IntVec v; - Fill(&v, len); - - for (size_t newlen = 0; newlen < 100; newlen++) { - const int* start_rep = v.data(); - v.reserve(newlen); - const int* final_rep = v.data(); - if (newlen <= len) { - EXPECT_EQ(start_rep, final_rep); - } - EXPECT_LE(newlen, v.capacity()); - - // Filling up to newlen should not change rep - while (v.size() < newlen) { - v.push_back(0); - } - EXPECT_EQ(final_rep, v.data()); - } - } -} - -TEST(StringVec, SelfRefPushBack) { - std::vector std_v; - absl::InlinedVector v; - const std::string s = "A quite long string to ensure heap."; - std_v.push_back(s); - v.push_back(s); - for (int i = 0; i < 20; ++i) { - EXPECT_THAT(v, ElementsAreArray(std_v)); - - v.push_back(v.back()); - std_v.push_back(std_v.back()); - } - EXPECT_THAT(v, ElementsAreArray(std_v)); -} - -TEST(StringVec, SelfRefPushBackWithMove) { - std::vector std_v; - absl::InlinedVector v; - const std::string s = "A quite long string to ensure heap."; - std_v.push_back(s); - v.push_back(s); - for (int i = 0; i < 20; ++i) { - EXPECT_EQ(v.back(), std_v.back()); - - v.push_back(std::move(v.back())); - std_v.push_back(std::move(std_v.back())); - } - EXPECT_EQ(v.back(), std_v.back()); -} - -TEST(StringVec, SelfMove) { - const std::string s = "A quite long string to ensure heap."; - for (int len = 0; len < 20; len++) { - SCOPED_TRACE(len); - absl::InlinedVector v; - for (int i = 0; i < len; ++i) { - SCOPED_TRACE(i); - v.push_back(s); - } - // Indirection necessary to avoid compiler warning. - v = std::move(*(&v)); - // Ensure that the inlined vector is still in a valid state by copying it. - // We don't expect specific contents since a self-move results in an - // unspecified valid state. - std::vector copy(v.begin(), v.end()); - } -} - -TEST(IntVec, Swap) { - for (size_t l1 = 0; l1 < 20; l1++) { - SCOPED_TRACE(l1); - for (size_t l2 = 0; l2 < 20; l2++) { - SCOPED_TRACE(l2); - IntVec a = Fill(l1, 0); - IntVec b = Fill(l2, 100); - { - using std::swap; - swap(a, b); - } - EXPECT_EQ(l1, b.size()); - EXPECT_EQ(l2, a.size()); - for (size_t i = 0; i < l1; i++) { - SCOPED_TRACE(i); - EXPECT_EQ(static_cast(i), b[i]); - } - for (size_t i = 0; i < l2; i++) { - SCOPED_TRACE(i); - EXPECT_EQ(100 + static_cast(i), a[i]); - } - } - } -} - -TYPED_TEST_P(InstanceTest, Swap) { - using Instance = TypeParam; - using InstanceVec = absl::InlinedVector; - for (size_t l1 = 0; l1 < 20; l1++) { - SCOPED_TRACE(l1); - for (size_t l2 = 0; l2 < 20; l2++) { - SCOPED_TRACE(l2); - InstanceTracker tracker; - InstanceVec a, b; - const size_t inlined_capacity = a.capacity(); - auto min_len = std::min(l1, l2); - auto max_len = std::max(l1, l2); - for (size_t i = 0; i < l1; i++) - a.push_back(Instance(static_cast(i))); - for (size_t i = 0; i < l2; i++) - b.push_back(Instance(100 + static_cast(i))); - EXPECT_EQ(tracker.instances(), static_cast(l1 + l2)); - tracker.ResetCopiesMovesSwaps(); - { - using std::swap; - swap(a, b); - } - EXPECT_EQ(tracker.instances(), static_cast(l1 + l2)); - if (a.size() > inlined_capacity && b.size() > inlined_capacity) { - EXPECT_EQ(tracker.swaps(), 0); // Allocations are swapped. - EXPECT_EQ(tracker.moves(), 0); - } else if (a.size() <= inlined_capacity && b.size() <= inlined_capacity) { - EXPECT_EQ(tracker.swaps(), static_cast(min_len)); - EXPECT_EQ((tracker.moves() ? tracker.moves() : tracker.copies()), - static_cast(max_len - min_len)); - } else { - // One is allocated and the other isn't. The allocation is transferred - // without copying elements, and the inlined instances are copied/moved. - EXPECT_EQ(tracker.swaps(), 0); - EXPECT_EQ((tracker.moves() ? tracker.moves() : tracker.copies()), - static_cast(min_len)); - } - - EXPECT_EQ(l1, b.size()); - EXPECT_EQ(l2, a.size()); - for (size_t i = 0; i < l1; i++) { - EXPECT_EQ(static_cast(i), b[i].value()); - } - for (size_t i = 0; i < l2; i++) { - EXPECT_EQ(100 + static_cast(i), a[i].value()); - } - } - } -} - -TEST(IntVec, EqualAndNotEqual) { - IntVec a, b; - EXPECT_TRUE(a == b); - EXPECT_FALSE(a != b); - - a.push_back(3); - EXPECT_FALSE(a == b); - EXPECT_TRUE(a != b); - - b.push_back(3); - EXPECT_TRUE(a == b); - EXPECT_FALSE(a != b); - - b.push_back(7); - EXPECT_FALSE(a == b); - EXPECT_TRUE(a != b); - - a.push_back(6); - EXPECT_FALSE(a == b); - EXPECT_TRUE(a != b); - - a.clear(); - b.clear(); - for (size_t i = 0; i < 100; i++) { - a.push_back(static_cast(i)); - b.push_back(static_cast(i)); - EXPECT_TRUE(a == b); - EXPECT_FALSE(a != b); - - b[i] = b[i] + 1; - EXPECT_FALSE(a == b); - EXPECT_TRUE(a != b); - - b[i] = b[i] - 1; // Back to before - EXPECT_TRUE(a == b); - EXPECT_FALSE(a != b); - } -} - -TEST(IntVec, RelationalOps) { - IntVec a, b; - EXPECT_FALSE(a < b); - EXPECT_FALSE(b < a); - EXPECT_FALSE(a > b); - EXPECT_FALSE(b > a); - EXPECT_TRUE(a <= b); - EXPECT_TRUE(b <= a); - EXPECT_TRUE(a >= b); - EXPECT_TRUE(b >= a); - b.push_back(3); - EXPECT_TRUE(a < b); - EXPECT_FALSE(b < a); - EXPECT_FALSE(a > b); - EXPECT_TRUE(b > a); - EXPECT_TRUE(a <= b); - EXPECT_FALSE(b <= a); - EXPECT_FALSE(a >= b); - EXPECT_TRUE(b >= a); -} - -TYPED_TEST_P(InstanceTest, CountConstructorsDestructors) { - using Instance = TypeParam; - using InstanceVec = absl::InlinedVector; - InstanceTracker tracker; - for (size_t len = 0; len < 20; len++) { - SCOPED_TRACE(len); - tracker.ResetCopiesMovesSwaps(); - - InstanceVec v; - const size_t inlined_capacity = v.capacity(); - for (size_t i = 0; i < len; i++) { - v.push_back(Instance(static_cast(i))); - } - EXPECT_EQ(tracker.instances(), static_cast(len)); - EXPECT_GE(tracker.copies() + tracker.moves(), - static_cast(len)); // More due to reallocation. - tracker.ResetCopiesMovesSwaps(); - - // Enlarging resize() must construct some objects - tracker.ResetCopiesMovesSwaps(); - v.resize(len + 10, Instance(100)); - EXPECT_EQ(tracker.instances(), static_cast(len) + 10); - if (len <= inlined_capacity && len + 10 > inlined_capacity) { - EXPECT_EQ(tracker.copies() + tracker.moves(), 10 + static_cast(len)); - } else { - // Only specify a minimum number of copies + moves. We don't want to - // depend on the reallocation policy here. - EXPECT_GE(tracker.copies() + tracker.moves(), - 10); // More due to reallocation. - } - - // Shrinking resize() must destroy some objects - tracker.ResetCopiesMovesSwaps(); - v.resize(len, Instance(100)); - EXPECT_EQ(tracker.instances(), static_cast(len)); - EXPECT_EQ(tracker.copies(), 0); - EXPECT_EQ(tracker.moves(), 0); - - // reserve() must not increase the number of initialized objects - SCOPED_TRACE("reserve"); - v.reserve(len + 1000); - EXPECT_EQ(tracker.instances(), static_cast(len)); - EXPECT_EQ(tracker.copies() + tracker.moves(), static_cast(len)); - - // pop_back() and erase() must destroy one object - if (len > 0) { - tracker.ResetCopiesMovesSwaps(); - v.pop_back(); - EXPECT_EQ(tracker.instances(), static_cast(len) - 1); - EXPECT_EQ(tracker.copies(), 0); - EXPECT_EQ(tracker.moves(), 0); - - if (!v.empty()) { - tracker.ResetCopiesMovesSwaps(); - v.erase(v.begin()); - EXPECT_EQ(tracker.instances(), static_cast(len) - 2); - EXPECT_EQ(tracker.copies() + tracker.moves(), - static_cast(len) - 2); - } - } - - tracker.ResetCopiesMovesSwaps(); - int instances_before_empty_erase = tracker.instances(); - v.erase(v.begin(), v.begin()); - EXPECT_EQ(tracker.instances(), instances_before_empty_erase); - EXPECT_EQ(tracker.copies() + tracker.moves(), 0); - } -} - -TYPED_TEST_P(InstanceTest, CountConstructorsDestructorsOnCopyConstruction) { - using Instance = TypeParam; - using InstanceVec = absl::InlinedVector; - InstanceTracker tracker; - for (int len = 0; len < 20; len++) { - SCOPED_TRACE(len); - tracker.ResetCopiesMovesSwaps(); - - InstanceVec v; - for (int i = 0; i < len; i++) { - v.push_back(Instance(i)); - } - EXPECT_EQ(tracker.instances(), len); - EXPECT_GE(tracker.copies() + tracker.moves(), - len); // More due to reallocation. - tracker.ResetCopiesMovesSwaps(); - { // Copy constructor should create 'len' more instances. - InstanceVec v_copy(v); - EXPECT_EQ(tracker.instances(), len + len); - EXPECT_EQ(tracker.copies(), len); - EXPECT_EQ(tracker.moves(), 0); - } - EXPECT_EQ(tracker.instances(), len); - } -} - -TYPED_TEST_P(InstanceTest, CountConstructorsDestructorsOnMoveConstruction) { - using Instance = TypeParam; - using InstanceVec = absl::InlinedVector; - InstanceTracker tracker; - for (int len = 0; len < 20; len++) { - SCOPED_TRACE(len); - tracker.ResetCopiesMovesSwaps(); - - InstanceVec v; - const size_t inlined_capacity = v.capacity(); - for (int i = 0; i < len; i++) { - v.push_back(Instance(i)); - } - EXPECT_EQ(tracker.instances(), len); - EXPECT_GE(tracker.copies() + tracker.moves(), - len); // More due to reallocation. - tracker.ResetCopiesMovesSwaps(); - { - InstanceVec v_copy(std::move(v)); - if (static_cast(len) > inlined_capacity) { - // Allocation is moved as a whole. - EXPECT_EQ(tracker.instances(), len); - EXPECT_EQ(tracker.live_instances(), len); - // Tests an implementation detail, don't rely on this in your code. - EXPECT_EQ(v.size(), 0u); // NOLINT misc-use-after-move - EXPECT_EQ(tracker.copies(), 0); - EXPECT_EQ(tracker.moves(), 0); - } else { - EXPECT_EQ(tracker.instances(), len + len); - if (Instance::supports_move()) { - EXPECT_EQ(tracker.live_instances(), len); - EXPECT_EQ(tracker.copies(), 0); - EXPECT_EQ(tracker.moves(), len); - } else { - EXPECT_EQ(tracker.live_instances(), len + len); - EXPECT_EQ(tracker.copies(), len); - EXPECT_EQ(tracker.moves(), 0); - } - } - EXPECT_EQ(tracker.swaps(), 0); - } - } -} - -TYPED_TEST_P(InstanceTest, CountConstructorsDestructorsOnAssignment) { - using Instance = TypeParam; - using InstanceVec = absl::InlinedVector; - InstanceTracker tracker; - for (int len = 0; len < 20; len++) { - SCOPED_TRACE(len); - for (int longorshort = 0; longorshort <= 1; ++longorshort) { - SCOPED_TRACE(longorshort); - tracker.ResetCopiesMovesSwaps(); - - InstanceVec longer, shorter; - for (int i = 0; i < len; i++) { - longer.push_back(Instance(i)); - shorter.push_back(Instance(i)); - } - longer.push_back(Instance(len)); - EXPECT_EQ(tracker.instances(), len + len + 1); - EXPECT_GE(tracker.copies() + tracker.moves(), - len + len + 1); // More due to reallocation. - - tracker.ResetCopiesMovesSwaps(); - if (longorshort) { - shorter = longer; - EXPECT_EQ(tracker.instances(), (len + 1) + (len + 1)); - EXPECT_GE(tracker.copies() + tracker.moves(), - len + 1); // More due to reallocation. - } else { - longer = shorter; - EXPECT_EQ(tracker.instances(), len + len); - EXPECT_EQ(tracker.copies() + tracker.moves(), len); - } - } - } -} - -TYPED_TEST_P(InstanceTest, CountConstructorsDestructorsOnMoveAssignment) { - using Instance = TypeParam; - using InstanceVec = absl::InlinedVector; - InstanceTracker tracker; - for (int len = 0; len < 20; len++) { - SCOPED_TRACE(len); - for (int longorshort = 0; longorshort <= 1; ++longorshort) { - SCOPED_TRACE(longorshort); - tracker.ResetCopiesMovesSwaps(); - - InstanceVec longer, shorter; - const size_t inlined_capacity = longer.capacity(); - for (int i = 0; i < len; i++) { - longer.push_back(Instance(i)); - shorter.push_back(Instance(i)); - } - longer.push_back(Instance(len)); - EXPECT_EQ(tracker.instances(), len + len + 1); - EXPECT_GE(tracker.copies() + tracker.moves(), - len + len + 1); // More due to reallocation. - - tracker.ResetCopiesMovesSwaps(); - int src_len; - if (longorshort) { - src_len = len + 1; - shorter = std::move(longer); - } else { - src_len = len; - longer = std::move(shorter); - } - if (static_cast(src_len) > inlined_capacity) { - // Allocation moved as a whole. - EXPECT_EQ(tracker.instances(), src_len); - EXPECT_EQ(tracker.live_instances(), src_len); - EXPECT_EQ(tracker.copies(), 0); - EXPECT_EQ(tracker.moves(), 0); - } else { - // Elements are all copied. - EXPECT_EQ(tracker.instances(), src_len + src_len); - if (Instance::supports_move()) { - EXPECT_EQ(tracker.copies(), 0); - EXPECT_EQ(tracker.moves(), src_len); - EXPECT_EQ(tracker.live_instances(), src_len); - } else { - EXPECT_EQ(tracker.copies(), src_len); - EXPECT_EQ(tracker.moves(), 0); - EXPECT_EQ(tracker.live_instances(), src_len + src_len); - } - } - EXPECT_EQ(tracker.swaps(), 0); - } - } -} - -TEST(CountElemAssign, SimpleTypeWithInlineBacking) { - const size_t inlined_capacity = absl::InlinedVector().capacity(); - - for (size_t original_size = 0; original_size <= 5; ++original_size) { - SCOPED_TRACE(original_size); - // Original contents are [12345, 12345, ...] - std::vector original_contents(original_size, 12345); - - absl::InlinedVector v(original_contents.begin(), - original_contents.end()); - v.assign(2, 123); - EXPECT_THAT(v, AllOf(SizeIs(2u), ElementsAre(123, 123))); - if (original_size <= inlined_capacity) { - // If the original had inline backing, it should stay inline. - EXPECT_EQ(v.capacity(), inlined_capacity); - } - } -} - -TEST(CountElemAssign, SimpleTypeWithAllocation) { - for (size_t original_size = 0; original_size <= 5; ++original_size) { - SCOPED_TRACE(original_size); - // Original contents are [12345, 12345, ...] - std::vector original_contents(original_size, 12345); - - absl::InlinedVector v(original_contents.begin(), - original_contents.end()); - v.assign(3, 123); - EXPECT_THAT(v, AllOf(SizeIs(3u), ElementsAre(123, 123, 123))); - EXPECT_LE(v.size(), v.capacity()); - } -} - -TYPED_TEST_P(InstanceTest, CountElemAssignInlineBacking) { - using Instance = TypeParam; - for (size_t original_size = 0; original_size <= 5; ++original_size) { - SCOPED_TRACE(original_size); - // Original contents are [12345, 12345, ...] - std::vector original_contents(original_size, Instance(12345)); - - absl::InlinedVector v(original_contents.begin(), - original_contents.end()); - v.assign(2, Instance(123)); - EXPECT_THAT(v, AllOf(SizeIs(2u), ElementsAre(ValueIs(123), ValueIs(123)))); - if (original_size <= 2) { - // If the original had inline backing, it should stay inline. - EXPECT_EQ(2u, v.capacity()); - } - } -} - -template -void InstanceCountElemAssignWithAllocationTest() { - for (size_t original_size = 0; original_size <= 5; ++original_size) { - SCOPED_TRACE(original_size); - // Original contents are [12345, 12345, ...] - std::vector original_contents(original_size, Instance(12345)); - - absl::InlinedVector v(original_contents.begin(), - original_contents.end()); - v.assign(3, Instance(123)); - EXPECT_THAT(v, AllOf(SizeIs(3u), ElementsAre(ValueIs(123), ValueIs(123), - ValueIs(123)))); - EXPECT_LE(v.size(), v.capacity()); - } -} -TEST(CountElemAssign, WithAllocationCopyableInstance) { - InstanceCountElemAssignWithAllocationTest(); -} -TEST(CountElemAssign, WithAllocationCopyableMovableInstance) { - InstanceCountElemAssignWithAllocationTest(); -} - -TEST(RangedConstructor, SimpleType) { - std::vector source_v = {4, 5, 6}; - // First try to fit in inline backing - absl::InlinedVector v(source_v.begin(), source_v.end()); - EXPECT_EQ(3u, v.size()); - EXPECT_EQ(4u, - v.capacity()); // Indication that we're still on inlined storage - EXPECT_EQ(4, v[0]); - EXPECT_EQ(5, v[1]); - EXPECT_EQ(6, v[2]); - - // Now, force a re-allocate - absl::InlinedVector realloc_v(source_v.begin(), source_v.end()); - EXPECT_EQ(3u, realloc_v.size()); - EXPECT_LT(2u, realloc_v.capacity()); - EXPECT_EQ(4, realloc_v[0]); - EXPECT_EQ(5, realloc_v[1]); - EXPECT_EQ(6, realloc_v[2]); -} - -// Test for ranged constructors using Instance as the element type and -// SourceContainer as the source container type. -template -void InstanceRangedConstructorTestForContainer() { - InstanceTracker tracker; - SourceContainer source_v = {Instance(0), Instance(1)}; - tracker.ResetCopiesMovesSwaps(); - absl::InlinedVector v(source_v.begin(), - source_v.end()); - EXPECT_EQ(2u, v.size()); - EXPECT_LT(1u, v.capacity()); - EXPECT_EQ(0, v[0].value()); - EXPECT_EQ(1, v[1].value()); - EXPECT_EQ(tracker.copies(), 2); - EXPECT_EQ(tracker.moves(), 0); -} - -template -void InstanceRangedConstructorTestWithCapacity() { - // Test with const and non-const, random access and non-random-access sources. - // TODO(bsamwel): Test with an input iterator source. - { - SCOPED_TRACE("std::list"); - InstanceRangedConstructorTestForContainer, - inlined_capacity>(); - { - SCOPED_TRACE("const std::list"); - InstanceRangedConstructorTestForContainer< - Instance, const std::list, inlined_capacity>(); - } - { - SCOPED_TRACE("std::vector"); - InstanceRangedConstructorTestForContainer, - inlined_capacity>(); - } - { - SCOPED_TRACE("const std::vector"); - InstanceRangedConstructorTestForContainer< - Instance, const std::vector, inlined_capacity>(); - } - } -} - -TYPED_TEST_P(InstanceTest, RangedConstructor) { - using Instance = TypeParam; - SCOPED_TRACE("capacity=1"); - InstanceRangedConstructorTestWithCapacity(); - SCOPED_TRACE("capacity=2"); - InstanceRangedConstructorTestWithCapacity(); -} - -TEST(RangedConstructor, ElementsAreConstructed) { - std::vector source_v = {"cat", "dog"}; - - // Force expansion and re-allocation of v. Ensures that when the vector is - // expanded that new elements are constructed. - absl::InlinedVector v(source_v.begin(), source_v.end()); - EXPECT_EQ("cat", v[0]); - EXPECT_EQ("dog", v[1]); -} - -TEST(RangedAssign, SimpleType) { - const size_t inlined_capacity = absl::InlinedVector().capacity(); - - // Test for all combinations of original sizes (empty and non-empty inline, - // and out of line) and target sizes. - for (size_t original_size = 0; original_size <= 5; ++original_size) { - SCOPED_TRACE(original_size); - // Original contents are [12345, 12345, ...] - std::vector original_contents(original_size, 12345); - - for (size_t target_size = 0; target_size <= 5; ++target_size) { - SCOPED_TRACE(target_size); - - // New contents are [3, 4, ...] - std::vector new_contents; - for (size_t i = 0; i < target_size; ++i) { - new_contents.push_back(static_cast(i + 3)); - } - - absl::InlinedVector v(original_contents.begin(), - original_contents.end()); - v.assign(new_contents.begin(), new_contents.end()); - - EXPECT_EQ(new_contents.size(), v.size()); - EXPECT_LE(new_contents.size(), v.capacity()); - if (target_size <= inlined_capacity && - original_size <= inlined_capacity) { - // Storage should stay inline when target size is small. - EXPECT_EQ(v.capacity(), inlined_capacity); - } - EXPECT_THAT(v, ElementsAreArray(new_contents)); - } - } -} - -// Returns true if lhs and rhs have the same value. -template -static bool InstanceValuesEqual(const Instance& lhs, const Instance& rhs) { - return lhs.value() == rhs.value(); -} - -// Test for ranged assign() using Instance as the element type and -// SourceContainer as the source container type. -template -void InstanceRangedAssignTestForContainer() { - // Test for all combinations of original sizes (empty and non-empty inline, - // and out of line) and target sizes. - for (size_t original_size = 0; original_size <= 5; ++original_size) { - SCOPED_TRACE(original_size); - // Original contents are [12345, 12345, ...] - std::vector original_contents(original_size, Instance(12345)); - - for (size_t target_size = 0; target_size <= 5; ++target_size) { - SCOPED_TRACE(target_size); - - // New contents are [3, 4, ...] - // Generate data using a non-const container, because SourceContainer - // itself may be const. - // TODO(bsamwel): Test with an input iterator. - std::vector new_contents_in; - for (size_t i = 0; i < target_size; ++i) { - new_contents_in.push_back(Instance(static_cast(i) + 3)); - } - SourceContainer new_contents(new_contents_in.begin(), - new_contents_in.end()); - - absl::InlinedVector v(original_contents.begin(), - original_contents.end()); - v.assign(new_contents.begin(), new_contents.end()); - - EXPECT_EQ(new_contents.size(), v.size()); - EXPECT_LE(new_contents.size(), v.capacity()); - if (target_size <= 3 && original_size <= 3) { - // Storage should stay inline when target size is small. - EXPECT_EQ(3u, v.capacity()); - } - EXPECT_TRUE(std::equal(v.begin(), v.end(), new_contents.begin(), - InstanceValuesEqual)); - } - } -} - -TYPED_TEST_P(InstanceTest, RangedAssign) { - using Instance = TypeParam; - // Test with const and non-const, random access and non-random-access sources. - // TODO(bsamwel): Test with an input iterator source. - SCOPED_TRACE("std::list"); - InstanceRangedAssignTestForContainer>(); - SCOPED_TRACE("const std::list"); - InstanceRangedAssignTestForContainer>(); - SCOPED_TRACE("std::vector"); - InstanceRangedAssignTestForContainer>(); - SCOPED_TRACE("const std::vector"); - InstanceRangedAssignTestForContainer>(); -} - -TEST(InitializerListConstructor, SimpleTypeWithInlineBacking) { - EXPECT_THAT((absl::InlinedVector{4, 5, 6}), - AllOf(SizeIs(3u), CapacityIs(4u), ElementsAre(4, 5, 6))); -} - -TEST(InitializerListConstructor, SimpleTypeWithReallocationRequired) { - EXPECT_THAT((absl::InlinedVector{4, 5, 6}), - AllOf(SizeIs(3u), CapacityIs(Gt(2u)), ElementsAre(4, 5, 6))); -} - -TEST(InitializerListConstructor, DisparateTypesInList) { - EXPECT_THAT((absl::InlinedVector{-7, 8ULL}), ElementsAre(-7, 8)); - - EXPECT_THAT((absl::InlinedVector{"foo", std::string("bar")}), - ElementsAre("foo", "bar")); -} - -TEST(InitializerListConstructor, ComplexTypeWithInlineBacking) { - const size_t inlined_capacity = - absl::InlinedVector().capacity(); - EXPECT_THAT( - (absl::InlinedVector{ - CopyableMovableInstance(0)}), - AllOf(SizeIs(1u), CapacityIs(inlined_capacity), ElementsAre(ValueIs(0)))); -} - -TEST(InitializerListConstructor, ComplexTypeWithReallocationRequired) { - EXPECT_THAT((absl::InlinedVector{ - CopyableMovableInstance(0), CopyableMovableInstance(1)}), - AllOf(SizeIs(2u), CapacityIs(Gt(1u)), - ElementsAre(ValueIs(0), ValueIs(1)))); -} - -TEST(InitializerListAssign, SimpleTypeFitsInlineBacking) { - for (size_t original_size = 0; original_size <= 4; ++original_size) { - SCOPED_TRACE(original_size); - - absl::InlinedVector v1(original_size, 12345); - const size_t original_capacity_v1 = v1.capacity(); - v1.assign({3}); - EXPECT_THAT(v1, AllOf(SizeIs(1u), CapacityIs(original_capacity_v1), - ElementsAre(3))); - - absl::InlinedVector v2(original_size, 12345); - const size_t original_capacity_v2 = v2.capacity(); - v2 = {3}; - EXPECT_THAT(v2, AllOf(SizeIs(1u), CapacityIs(original_capacity_v2), - ElementsAre(3))); - } -} - -TEST(InitializerListAssign, SimpleTypeDoesNotFitInlineBacking) { - for (size_t original_size = 0; original_size <= 4; ++original_size) { - SCOPED_TRACE(original_size); - absl::InlinedVector v1(original_size, 12345); - v1.assign({3, 4, 5}); - EXPECT_THAT(v1, AllOf(SizeIs(3u), ElementsAre(3, 4, 5))); - EXPECT_LE(3u, v1.capacity()); - - absl::InlinedVector v2(original_size, 12345); - v2 = {3, 4, 5}; - EXPECT_THAT(v2, AllOf(SizeIs(3u), ElementsAre(3, 4, 5))); - EXPECT_LE(3u, v2.capacity()); - } -} - -TEST(InitializerListAssign, DisparateTypesInList) { - absl::InlinedVector v_int1; - v_int1.assign({-7, 8ULL}); - EXPECT_THAT(v_int1, ElementsAre(-7, 8)); - - absl::InlinedVector v_int2; - v_int2 = {-7, 8ULL}; - EXPECT_THAT(v_int2, ElementsAre(-7, 8)); - - absl::InlinedVector v_string1; - v_string1.assign({"foo", std::string("bar")}); - EXPECT_THAT(v_string1, ElementsAre("foo", "bar")); - - absl::InlinedVector v_string2; - v_string2 = {"foo", std::string("bar")}; - EXPECT_THAT(v_string2, ElementsAre("foo", "bar")); -} - -TYPED_TEST_P(InstanceTest, InitializerListAssign) { - using Instance = TypeParam; - for (size_t original_size = 0; original_size <= 4; ++original_size) { - SCOPED_TRACE(original_size); - absl::InlinedVector v(original_size, Instance(12345)); - const size_t original_capacity = v.capacity(); - v.assign({Instance(3)}); - EXPECT_THAT(v, AllOf(SizeIs(1u), CapacityIs(original_capacity), - ElementsAre(ValueIs(3)))); - } - for (size_t original_size = 0; original_size <= 4; ++original_size) { - SCOPED_TRACE(original_size); - absl::InlinedVector v(original_size, Instance(12345)); - v.assign({Instance(3), Instance(4), Instance(5)}); - EXPECT_THAT( - v, AllOf(SizeIs(3u), ElementsAre(ValueIs(3), ValueIs(4), ValueIs(5)))); - EXPECT_LE(3u, v.capacity()); - } -} - -REGISTER_TYPED_TEST_SUITE_P(InstanceTest, Swap, CountConstructorsDestructors, - CountConstructorsDestructorsOnCopyConstruction, - CountConstructorsDestructorsOnMoveConstruction, - CountConstructorsDestructorsOnAssignment, - CountConstructorsDestructorsOnMoveAssignment, - CountElemAssignInlineBacking, RangedConstructor, - RangedAssign, InitializerListAssign); - -using InstanceTypes = - ::testing::Types; -INSTANTIATE_TYPED_TEST_SUITE_P(InstanceTestOnTypes, InstanceTest, - InstanceTypes); - -TEST(DynamicVec, DynamicVecCompiles) { - DynamicVec v; - (void)v; -} - -TEST(AllocatorSupportTest, Constructors) { - using MyAlloc = CountingAllocator; - using AllocVec = absl::InlinedVector; - const int ia[] = {0, 1, 2, 3, 4, 5, 6, 7}; - int64_t allocated = 0; - MyAlloc alloc(&allocated); - { AllocVec ABSL_ATTRIBUTE_UNUSED v; } - { AllocVec ABSL_ATTRIBUTE_UNUSED v(alloc); } - { AllocVec ABSL_ATTRIBUTE_UNUSED v(ia, ia + ABSL_ARRAYSIZE(ia), alloc); } - { AllocVec ABSL_ATTRIBUTE_UNUSED v({1, 2, 3}, alloc); } - - AllocVec v2; - { AllocVec ABSL_ATTRIBUTE_UNUSED v(v2, alloc); } - { AllocVec ABSL_ATTRIBUTE_UNUSED v(std::move(v2), alloc); } -} - -TEST(AllocatorSupportTest, CountAllocations) { - using MyAlloc = CountingAllocator; - using AllocVec = absl::InlinedVector; - const int ia[] = {0, 1, 2, 3, 4, 5, 6, 7}; - int64_t allocated = 0; - MyAlloc alloc(&allocated); - { - AllocVec ABSL_ATTRIBUTE_UNUSED v(ia, ia + 4, alloc); - EXPECT_THAT(allocated, Eq(0)); - } - EXPECT_THAT(allocated, Eq(0)); - { - AllocVec ABSL_ATTRIBUTE_UNUSED v(ia, ia + ABSL_ARRAYSIZE(ia), alloc); - EXPECT_THAT(allocated, Eq(static_cast(v.size() * sizeof(int)))); - } - EXPECT_THAT(allocated, Eq(0)); - { - AllocVec v(4, 1, alloc); - EXPECT_THAT(allocated, Eq(0)); - - int64_t allocated2 = 0; - MyAlloc alloc2(&allocated2); - AllocVec v2(v, alloc2); - EXPECT_THAT(allocated2, Eq(0)); - - int64_t allocated3 = 0; - MyAlloc alloc3(&allocated3); - AllocVec v3(std::move(v), alloc3); - EXPECT_THAT(allocated3, Eq(0)); - } - EXPECT_THAT(allocated, 0); - { - AllocVec v(8, 2, alloc); - EXPECT_THAT(allocated, Eq(static_cast(v.size() * sizeof(int)))); - - int64_t allocated2 = 0; - MyAlloc alloc2(&allocated2); - AllocVec v2(v, alloc2); - EXPECT_THAT(allocated2, Eq(static_cast(v2.size() * sizeof(int)))); - - int64_t allocated3 = 0; - MyAlloc alloc3(&allocated3); - AllocVec v3(std::move(v), alloc3); - EXPECT_THAT(allocated3, Eq(static_cast(v3.size() * sizeof(int)))); - } - EXPECT_EQ(allocated, 0); - { - // Test shrink_to_fit deallocations. - AllocVec v(8, 2, alloc); - EXPECT_EQ(allocated, static_cast(8 * sizeof(int))); - v.resize(5); - EXPECT_EQ(allocated, static_cast(8 * sizeof(int))); - v.shrink_to_fit(); - EXPECT_EQ(allocated, static_cast(5 * sizeof(int))); - v.resize(4); - EXPECT_EQ(allocated, static_cast(5 * sizeof(int))); - v.shrink_to_fit(); - EXPECT_EQ(allocated, 0); - } -} - -TEST(AllocatorSupportTest, SwapBothAllocated) { - using MyAlloc = CountingAllocator; - using AllocVec = absl::InlinedVector; - int64_t allocated1 = 0; - int64_t allocated2 = 0; - { - const int ia1[] = {0, 1, 2, 3, 4, 5, 6, 7}; - const int ia2[] = {0, 1, 2, 3, 4, 5, 6, 7, 8}; - MyAlloc a1(&allocated1); - MyAlloc a2(&allocated2); - AllocVec v1(ia1, ia1 + ABSL_ARRAYSIZE(ia1), a1); - AllocVec v2(ia2, ia2 + ABSL_ARRAYSIZE(ia2), a2); - EXPECT_LT(v1.capacity(), v2.capacity()); - EXPECT_THAT(allocated1, - Eq(static_cast(v1.capacity() * sizeof(int)))); - EXPECT_THAT(allocated2, - Eq(static_cast(v2.capacity() * sizeof(int)))); - v1.swap(v2); - EXPECT_THAT(v1, ElementsAreArray(ia2)); - EXPECT_THAT(v2, ElementsAreArray(ia1)); - EXPECT_THAT(allocated1, - Eq(static_cast(v2.capacity() * sizeof(int)))); - EXPECT_THAT(allocated2, - Eq(static_cast(v1.capacity() * sizeof(int)))); - } - EXPECT_THAT(allocated1, 0); - EXPECT_THAT(allocated2, 0); -} - -TEST(AllocatorSupportTest, SwapOneAllocated) { - using MyAlloc = CountingAllocator; - using AllocVec = absl::InlinedVector; - int64_t allocated1 = 0; - int64_t allocated2 = 0; - { - const int ia1[] = {0, 1, 2, 3, 4, 5, 6, 7}; - const int ia2[] = {0, 1, 2, 3}; - MyAlloc a1(&allocated1); - MyAlloc a2(&allocated2); - AllocVec v1(ia1, ia1 + ABSL_ARRAYSIZE(ia1), a1); - AllocVec v2(ia2, ia2 + ABSL_ARRAYSIZE(ia2), a2); - EXPECT_THAT(allocated1, - Eq(static_cast(v1.capacity() * sizeof(int)))); - EXPECT_THAT(allocated2, Eq(0)); - v1.swap(v2); - EXPECT_THAT(v1, ElementsAreArray(ia2)); - EXPECT_THAT(v2, ElementsAreArray(ia1)); - EXPECT_THAT(allocated1, - Eq(static_cast(v2.capacity() * sizeof(int)))); - EXPECT_THAT(allocated2, Eq(0)); - EXPECT_TRUE(v2.get_allocator() == a1); - EXPECT_TRUE(v1.get_allocator() == a2); - } - EXPECT_THAT(allocated1, 0); - EXPECT_THAT(allocated2, 0); -} - -TEST(AllocatorSupportTest, ScopedAllocatorWorksInlined) { - using StdVector = std::vector>; - using Alloc = CountingAllocator; - using ScopedAlloc = std::scoped_allocator_adaptor; - using AllocVec = absl::InlinedVector; - - int64_t total_allocated_byte_count = 0; - - AllocVec inlined_case(ScopedAlloc(Alloc(+&total_allocated_byte_count))); - - // Called only once to remain inlined - inlined_case.emplace_back(); - - int64_t absl_responsible_for_count = total_allocated_byte_count; - - // MSVC's allocator preemptively allocates in debug mode -#if !defined(_MSC_VER) - EXPECT_EQ(absl_responsible_for_count, 0); -#endif // !defined(_MSC_VER) - - inlined_case[0].emplace_back(); - EXPECT_GT(total_allocated_byte_count, absl_responsible_for_count); - - inlined_case.clear(); - inlined_case.shrink_to_fit(); - EXPECT_EQ(total_allocated_byte_count, 0); -} - -TEST(AllocatorSupportTest, ScopedAllocatorWorksAllocated) { - using StdVector = std::vector>; - using Alloc = CountingAllocator; - using ScopedAlloc = std::scoped_allocator_adaptor; - using AllocVec = absl::InlinedVector; - - int64_t total_allocated_byte_count = 0; - - AllocVec allocated_case(ScopedAlloc(Alloc(+&total_allocated_byte_count))); - - // Called twice to force into being allocated - allocated_case.emplace_back(); - allocated_case.emplace_back(); - - int64_t absl_responsible_for_count = total_allocated_byte_count; - EXPECT_GT(absl_responsible_for_count, 0); - - allocated_case[1].emplace_back(); - EXPECT_GT(total_allocated_byte_count, absl_responsible_for_count); - - allocated_case.clear(); - allocated_case.shrink_to_fit(); - EXPECT_EQ(total_allocated_byte_count, 0); -} - -TEST(AllocatorSupportTest, SizeAllocConstructor) { - constexpr size_t inlined_size = 4; - using Alloc = CountingAllocator; - using AllocVec = absl::InlinedVector; - - { - auto len = inlined_size / 2; - int64_t allocated = 0; - auto v = AllocVec(len, Alloc(&allocated)); - - // Inline storage used; allocator should not be invoked - EXPECT_THAT(allocated, Eq(0)); - EXPECT_THAT(v, AllOf(SizeIs(len), Each(0))); - } - - { - auto len = inlined_size * 2; - int64_t allocated = 0; - auto v = AllocVec(len, Alloc(&allocated)); - - // Out of line storage used; allocation of 8 elements expected - EXPECT_THAT(allocated, Eq(static_cast(len * sizeof(int)))); - EXPECT_THAT(v, AllOf(SizeIs(len), Each(0))); - } -} - -TEST(InlinedVectorTest, MinimumAllocatorCompilesUsingTraits) { - using T = int; - using A = std::allocator; - using ATraits = absl::allocator_traits; - - struct MinimumAllocator { - using value_type = T; - - value_type* allocate(size_t n) { - A a; - return ATraits::allocate(a, n); - } - - void deallocate(value_type* p, size_t n) { - A a; - ATraits::deallocate(a, p, n); - } - }; - - absl::InlinedVector vec; - vec.emplace_back(); - vec.resize(0); -} - -TEST(InlinedVectorTest, AbslHashValueWorks) { - using V = absl::InlinedVector; - std::vector cases; - - // Generate a variety of vectors some of these are small enough for the inline - // space but are stored out of line. - for (size_t i = 0; i < 10; ++i) { - V v; - for (int j = 0; j < static_cast(i); ++j) { - v.push_back(j); - } - cases.push_back(v); - v.resize(i % 4); - cases.push_back(v); - } - - EXPECT_TRUE(absl::VerifyTypeImplementsAbslHashCorrectly(cases)); -} - -class MoveConstructibleOnlyInstance - : public absl::test_internal::BaseCountedInstance { - public: - explicit MoveConstructibleOnlyInstance(int x) : BaseCountedInstance(x) {} - MoveConstructibleOnlyInstance(MoveConstructibleOnlyInstance&& other) = - default; - MoveConstructibleOnlyInstance& operator=( - MoveConstructibleOnlyInstance&& other) = delete; -}; - -MATCHER(HasValue, "") { - return ::testing::get<0>(arg).value() == ::testing::get<1>(arg); -} - -TEST(NonAssignableMoveAssignmentTest, AllocatedToInline) { - using X = MoveConstructibleOnlyInstance; - InstanceTracker tracker; - absl::InlinedVector inlined; - inlined.emplace_back(1); - absl::InlinedVector allocated; - allocated.emplace_back(1); - allocated.emplace_back(2); - allocated.emplace_back(3); - tracker.ResetCopiesMovesSwaps(); - - inlined = std::move(allocated); - // passed ownership of the allocated storage - EXPECT_EQ(tracker.moves(), 0); - EXPECT_EQ(tracker.live_instances(), 3); - - EXPECT_THAT(inlined, Pointwise(HasValue(), {1, 2, 3})); -} - -TEST(NonAssignableMoveAssignmentTest, InlineToAllocated) { - using X = MoveConstructibleOnlyInstance; - InstanceTracker tracker; - absl::InlinedVector inlined; - inlined.emplace_back(1); - absl::InlinedVector allocated; - allocated.emplace_back(1); - allocated.emplace_back(2); - allocated.emplace_back(3); - tracker.ResetCopiesMovesSwaps(); - - allocated = std::move(inlined); - // Moved elements - EXPECT_EQ(tracker.moves(), 1); - EXPECT_EQ(tracker.live_instances(), 1); - - EXPECT_THAT(allocated, Pointwise(HasValue(), {1})); -} - -TEST(NonAssignableMoveAssignmentTest, InlineToInline) { - using X = MoveConstructibleOnlyInstance; - InstanceTracker tracker; - absl::InlinedVector inlined_a; - inlined_a.emplace_back(1); - absl::InlinedVector inlined_b; - inlined_b.emplace_back(1); - tracker.ResetCopiesMovesSwaps(); - - inlined_a = std::move(inlined_b); - // Moved elements - EXPECT_EQ(tracker.moves(), 1); - EXPECT_EQ(tracker.live_instances(), 1); - - EXPECT_THAT(inlined_a, Pointwise(HasValue(), {1})); -} - -TEST(NonAssignableMoveAssignmentTest, AllocatedToAllocated) { - using X = MoveConstructibleOnlyInstance; - InstanceTracker tracker; - absl::InlinedVector allocated_a; - allocated_a.emplace_back(1); - allocated_a.emplace_back(2); - allocated_a.emplace_back(3); - absl::InlinedVector allocated_b; - allocated_b.emplace_back(4); - allocated_b.emplace_back(5); - allocated_b.emplace_back(6); - allocated_b.emplace_back(7); - tracker.ResetCopiesMovesSwaps(); - - allocated_a = std::move(allocated_b); - // passed ownership of the allocated storage - EXPECT_EQ(tracker.moves(), 0); - EXPECT_EQ(tracker.live_instances(), 4); - - EXPECT_THAT(allocated_a, Pointwise(HasValue(), {4, 5, 6, 7})); -} - -TEST(NonAssignableMoveAssignmentTest, AssignThis) { - using X = MoveConstructibleOnlyInstance; - InstanceTracker tracker; - absl::InlinedVector v; - v.emplace_back(1); - v.emplace_back(2); - v.emplace_back(3); - - tracker.ResetCopiesMovesSwaps(); - - // Obfuscated in order to pass -Wself-move. - v = std::move(*std::addressof(v)); - // nothing happens - EXPECT_EQ(tracker.moves(), 0); - EXPECT_EQ(tracker.live_instances(), 3); - - EXPECT_THAT(v, Pointwise(HasValue(), {1, 2, 3})); -} - -class NonSwappableInstance : public absl::test_internal::BaseCountedInstance { - public: - explicit NonSwappableInstance(int x) : BaseCountedInstance(x) {} - NonSwappableInstance(const NonSwappableInstance& other) = default; - NonSwappableInstance& operator=(const NonSwappableInstance& other) = default; - NonSwappableInstance(NonSwappableInstance&& other) = default; - NonSwappableInstance& operator=(NonSwappableInstance&& other) = default; -}; - -void swap(NonSwappableInstance&, NonSwappableInstance&) = delete; - -TEST(NonSwappableSwapTest, InlineAndAllocatedTransferStorageAndMove) { - using X = NonSwappableInstance; - InstanceTracker tracker; - absl::InlinedVector inlined; - inlined.emplace_back(1); - absl::InlinedVector allocated; - allocated.emplace_back(1); - allocated.emplace_back(2); - allocated.emplace_back(3); - tracker.ResetCopiesMovesSwaps(); - - inlined.swap(allocated); - EXPECT_EQ(tracker.moves(), 1); - EXPECT_EQ(tracker.live_instances(), 4); - - EXPECT_THAT(inlined, Pointwise(HasValue(), {1, 2, 3})); -} - -TEST(NonSwappableSwapTest, InlineAndInlineMoveIndividualElements) { - using X = NonSwappableInstance; - InstanceTracker tracker; - absl::InlinedVector inlined_a; - inlined_a.emplace_back(1); - absl::InlinedVector inlined_b; - inlined_b.emplace_back(2); - tracker.ResetCopiesMovesSwaps(); - - inlined_a.swap(inlined_b); - EXPECT_EQ(tracker.moves(), 3); - EXPECT_EQ(tracker.live_instances(), 2); - - EXPECT_THAT(inlined_a, Pointwise(HasValue(), {2})); - EXPECT_THAT(inlined_b, Pointwise(HasValue(), {1})); -} - -TEST(NonSwappableSwapTest, AllocatedAndAllocatedOnlyTransferStorage) { - using X = NonSwappableInstance; - InstanceTracker tracker; - absl::InlinedVector allocated_a; - allocated_a.emplace_back(1); - allocated_a.emplace_back(2); - allocated_a.emplace_back(3); - absl::InlinedVector allocated_b; - allocated_b.emplace_back(4); - allocated_b.emplace_back(5); - allocated_b.emplace_back(6); - allocated_b.emplace_back(7); - tracker.ResetCopiesMovesSwaps(); - - allocated_a.swap(allocated_b); - EXPECT_EQ(tracker.moves(), 0); - EXPECT_EQ(tracker.live_instances(), 7); - - EXPECT_THAT(allocated_a, Pointwise(HasValue(), {4, 5, 6, 7})); - EXPECT_THAT(allocated_b, Pointwise(HasValue(), {1, 2, 3})); -} - -TEST(NonSwappableSwapTest, SwapThis) { - using X = NonSwappableInstance; - InstanceTracker tracker; - absl::InlinedVector v; - v.emplace_back(1); - v.emplace_back(2); - v.emplace_back(3); - - tracker.ResetCopiesMovesSwaps(); - - v.swap(v); - EXPECT_EQ(tracker.moves(), 0); - EXPECT_EQ(tracker.live_instances(), 3); - - EXPECT_THAT(v, Pointwise(HasValue(), {1, 2, 3})); -} - -template -using CharVec = absl::InlinedVector; - -// Warning: This struct "simulates" the type `InlinedVector::Storage::Allocated` -// to make reasonable expectations for inlined storage capacity optimization. If -// implementation changes `Allocated`, then `MySpan` and tests that use it need -// to be updated accordingly. -template -struct MySpan { - T* data; - size_t size; -}; - -TEST(StorageTest, InlinedCapacityAutoIncrease) { - // The requested capacity is auto increased to `sizeof(MySpan)`. - EXPECT_GT(CharVec<1>().capacity(), 1); - EXPECT_EQ(CharVec<1>().capacity(), sizeof(MySpan)); - EXPECT_EQ(CharVec<1>().capacity(), CharVec<2>().capacity()); - EXPECT_EQ(sizeof(CharVec<1>), sizeof(CharVec<2>)); - - // The requested capacity is auto increased to - // `sizeof(MySpan) / sizeof(int)`. - EXPECT_GT((absl::InlinedVector().capacity()), 1); - EXPECT_EQ((absl::InlinedVector().capacity()), - sizeof(MySpan) / sizeof(int)); -} - -} // anonymous namespace diff --git a/src/third_party/abseil-cpp/absl/container/internal/btree.h b/src/third_party/abseil-cpp/absl/container/internal/btree.h deleted file mode 100644 index d734676a21..0000000000 --- a/src/third_party/abseil-cpp/absl/container/internal/btree.h +++ /dev/null @@ -1,2982 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// A btree implementation of the STL set and map interfaces. A btree is smaller -// and generally also faster than STL set/map (refer to the benchmarks below). -// The red-black tree implementation of STL set/map has an overhead of 3 -// pointers (left, right and parent) plus the node color information for each -// stored value. So a set consumes 40 bytes for each value stored in -// 64-bit mode. This btree implementation stores multiple values on fixed -// size nodes (usually 256 bytes) and doesn't store child pointers for leaf -// nodes. The result is that a btree_set may use much less memory per -// stored value. For the random insertion benchmark in btree_bench.cc, a -// btree_set with node-size of 256 uses 5.1 bytes per stored value. -// -// The packing of multiple values on to each node of a btree has another effect -// besides better space utilization: better cache locality due to fewer cache -// lines being accessed. Better cache locality translates into faster -// operations. -// -// CAVEATS -// -// Insertions and deletions on a btree can cause splitting, merging or -// rebalancing of btree nodes. And even without these operations, insertions -// and deletions on a btree will move values around within a node. In both -// cases, the result is that insertions and deletions can invalidate iterators -// pointing to values other than the one being inserted/deleted. Therefore, this -// container does not provide pointer stability. This is notably different from -// STL set/map which takes care to not invalidate iterators on insert/erase -// except, of course, for iterators pointing to the value being erased. A -// partial workaround when erasing is available: erase() returns an iterator -// pointing to the item just after the one that was erased (or end() if none -// exists). - -#ifndef ABSL_CONTAINER_INTERNAL_BTREE_H_ -#define ABSL_CONTAINER_INTERNAL_BTREE_H_ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "absl/base/internal/raw_logging.h" -#include "absl/base/macros.h" -#include "absl/container/internal/common.h" -#include "absl/container/internal/common_policy_traits.h" -#include "absl/container/internal/compressed_tuple.h" -#include "absl/container/internal/container_memory.h" -#include "absl/container/internal/layout.h" -#include "absl/memory/memory.h" -#include "absl/meta/type_traits.h" -#include "absl/strings/cord.h" -#include "absl/strings/string_view.h" -#include "absl/types/compare.h" -#include "absl/utility/utility.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace container_internal { - -#ifdef ABSL_BTREE_ENABLE_GENERATIONS -#error ABSL_BTREE_ENABLE_GENERATIONS cannot be directly set -#elif defined(ABSL_HAVE_ADDRESS_SANITIZER) || \ - defined(ABSL_HAVE_MEMORY_SANITIZER) -// When compiled in sanitizer mode, we add generation integers to the nodes and -// iterators. When iterators are used, we validate that the container has not -// been mutated since the iterator was constructed. -#define ABSL_BTREE_ENABLE_GENERATIONS -#endif - -template -using compare_result_t = absl::result_of_t; - -// A helper class that indicates if the Compare parameter is a key-compare-to -// comparator. -template -using btree_is_key_compare_to = - std::is_convertible, absl::weak_ordering>; - -struct StringBtreeDefaultLess { - using is_transparent = void; - - StringBtreeDefaultLess() = default; - - // Compatibility constructor. - StringBtreeDefaultLess(std::less) {} // NOLINT - StringBtreeDefaultLess(std::less) {} // NOLINT - - // Allow converting to std::less for use in key_comp()/value_comp(). - explicit operator std::less() const { return {}; } - explicit operator std::less() const { return {}; } - explicit operator std::less() const { return {}; } - - absl::weak_ordering operator()(absl::string_view lhs, - absl::string_view rhs) const { - return compare_internal::compare_result_as_ordering(lhs.compare(rhs)); - } - StringBtreeDefaultLess(std::less) {} // NOLINT - absl::weak_ordering operator()(const absl::Cord &lhs, - const absl::Cord &rhs) const { - return compare_internal::compare_result_as_ordering(lhs.Compare(rhs)); - } - absl::weak_ordering operator()(const absl::Cord &lhs, - absl::string_view rhs) const { - return compare_internal::compare_result_as_ordering(lhs.Compare(rhs)); - } - absl::weak_ordering operator()(absl::string_view lhs, - const absl::Cord &rhs) const { - return compare_internal::compare_result_as_ordering(-rhs.Compare(lhs)); - } -}; - -struct StringBtreeDefaultGreater { - using is_transparent = void; - - StringBtreeDefaultGreater() = default; - - StringBtreeDefaultGreater(std::greater) {} // NOLINT - StringBtreeDefaultGreater(std::greater) {} // NOLINT - - // Allow converting to std::greater for use in key_comp()/value_comp(). - explicit operator std::greater() const { return {}; } - explicit operator std::greater() const { return {}; } - explicit operator std::greater() const { return {}; } - - absl::weak_ordering operator()(absl::string_view lhs, - absl::string_view rhs) const { - return compare_internal::compare_result_as_ordering(rhs.compare(lhs)); - } - StringBtreeDefaultGreater(std::greater) {} // NOLINT - absl::weak_ordering operator()(const absl::Cord &lhs, - const absl::Cord &rhs) const { - return compare_internal::compare_result_as_ordering(rhs.Compare(lhs)); - } - absl::weak_ordering operator()(const absl::Cord &lhs, - absl::string_view rhs) const { - return compare_internal::compare_result_as_ordering(-lhs.Compare(rhs)); - } - absl::weak_ordering operator()(absl::string_view lhs, - const absl::Cord &rhs) const { - return compare_internal::compare_result_as_ordering(rhs.Compare(lhs)); - } -}; - -// See below comments for checked_compare. -template ::value> -struct checked_compare_base : Compare { - using Compare::Compare; - explicit checked_compare_base(Compare c) : Compare(std::move(c)) {} - const Compare &comp() const { return *this; } -}; -template -struct checked_compare_base { - explicit checked_compare_base(Compare c) : compare(std::move(c)) {} - const Compare &comp() const { return compare; } - Compare compare; -}; - -// A mechanism for opting out of checked_compare for use only in btree_test.cc. -struct BtreeTestOnlyCheckedCompareOptOutBase {}; - -// A helper class to adapt the specified comparator for two use cases: -// (1) When using common Abseil string types with common comparison functors, -// convert a boolean comparison into a three-way comparison that returns an -// `absl::weak_ordering`. This helper class is specialized for -// less, greater, less, -// greater, less, and greater. -// (2) Adapt the comparator to diagnose cases of non-strict-weak-ordering (see -// https://en.cppreference.com/w/cpp/named_req/Compare) in debug mode. Whenever -// a comparison is made, we will make assertions to verify that the comparator -// is valid. -template -struct key_compare_adapter { - // Inherit from checked_compare_base to support function pointers and also - // keep empty-base-optimization (EBO) support for classes. - // Note: we can't use CompressedTuple here because that would interfere - // with the EBO for `btree::rightmost_`. `btree::rightmost_` is itself a - // CompressedTuple and nested `CompressedTuple`s don't support EBO. - // TODO(b/214288561): use CompressedTuple instead once it supports EBO for - // nested `CompressedTuple`s. - struct checked_compare : checked_compare_base { - private: - using Base = typename checked_compare::checked_compare_base; - using Base::comp; - - // If possible, returns whether `t` is equivalent to itself. We can only do - // this for `Key`s because we can't be sure that it's safe to call - // `comp()(k, k)` otherwise. Even if SFINAE allows it, there could be a - // compilation failure inside the implementation of the comparison operator. - bool is_self_equivalent(const Key &k) const { - // Note: this works for both boolean and three-way comparators. - return comp()(k, k) == 0; - } - // If we can't compare `t` with itself, returns true unconditionally. - template - bool is_self_equivalent(const T &) const { - return true; - } - - public: - using Base::Base; - checked_compare(Compare comp) : Base(std::move(comp)) {} // NOLINT - - // Allow converting to Compare for use in key_comp()/value_comp(). - explicit operator Compare() const { return comp(); } - - template >::value, - int> = 0> - bool operator()(const T &lhs, const U &rhs) const { - // NOTE: if any of these assertions fail, then the comparator does not - // establish a strict-weak-ordering (see - // https://en.cppreference.com/w/cpp/named_req/Compare). - assert(is_self_equivalent(lhs)); - assert(is_self_equivalent(rhs)); - const bool lhs_comp_rhs = comp()(lhs, rhs); - assert(!lhs_comp_rhs || !comp()(rhs, lhs)); - return lhs_comp_rhs; - } - - template < - typename T, typename U, - absl::enable_if_t, - absl::weak_ordering>::value, - int> = 0> - absl::weak_ordering operator()(const T &lhs, const U &rhs) const { - // NOTE: if any of these assertions fail, then the comparator does not - // establish a strict-weak-ordering (see - // https://en.cppreference.com/w/cpp/named_req/Compare). - assert(is_self_equivalent(lhs)); - assert(is_self_equivalent(rhs)); - const absl::weak_ordering lhs_comp_rhs = comp()(lhs, rhs); -#ifndef NDEBUG - const absl::weak_ordering rhs_comp_lhs = comp()(rhs, lhs); - if (lhs_comp_rhs > 0) { - assert(rhs_comp_lhs < 0 && "lhs_comp_rhs > 0 -> rhs_comp_lhs < 0"); - } else if (lhs_comp_rhs == 0) { - assert(rhs_comp_lhs == 0 && "lhs_comp_rhs == 0 -> rhs_comp_lhs == 0"); - } else { - assert(rhs_comp_lhs > 0 && "lhs_comp_rhs < 0 -> rhs_comp_lhs > 0"); - } -#endif - return lhs_comp_rhs; - } - }; - using type = absl::conditional_t< - std::is_base_of::value, - Compare, checked_compare>; -}; - -template <> -struct key_compare_adapter, std::string> { - using type = StringBtreeDefaultLess; -}; - -template <> -struct key_compare_adapter, std::string> { - using type = StringBtreeDefaultGreater; -}; - -template <> -struct key_compare_adapter, absl::string_view> { - using type = StringBtreeDefaultLess; -}; - -template <> -struct key_compare_adapter, absl::string_view> { - using type = StringBtreeDefaultGreater; -}; - -template <> -struct key_compare_adapter, absl::Cord> { - using type = StringBtreeDefaultLess; -}; - -template <> -struct key_compare_adapter, absl::Cord> { - using type = StringBtreeDefaultGreater; -}; - -// Detects an 'absl_btree_prefer_linear_node_search' member. This is -// a protocol used as an opt-in or opt-out of linear search. -// -// For example, this would be useful for key types that wrap an integer -// and define their own cheap operator<(). For example: -// -// class K { -// public: -// using absl_btree_prefer_linear_node_search = std::true_type; -// ... -// private: -// friend bool operator<(K a, K b) { return a.k_ < b.k_; } -// int k_; -// }; -// -// btree_map m; // Uses linear search -// -// If T has the preference tag, then it has a preference. -// Btree will use the tag's truth value. -template -struct has_linear_node_search_preference : std::false_type {}; -template -struct prefers_linear_node_search : std::false_type {}; -template -struct has_linear_node_search_preference< - T, absl::void_t> - : std::true_type {}; -template -struct prefers_linear_node_search< - T, absl::void_t> - : T::absl_btree_prefer_linear_node_search {}; - -template -constexpr bool compare_has_valid_result_type() { - using compare_result_type = compare_result_t; - return std::is_same::value || - std::is_convertible::value; -} - -template -class map_value_compare { - template - friend class btree; - - // Note: this `protected` is part of the API of std::map::value_compare. See - // https://en.cppreference.com/w/cpp/container/map/value_compare. - protected: - explicit map_value_compare(original_key_compare c) : comp(std::move(c)) {} - - original_key_compare comp; // NOLINT - - public: - auto operator()(const value_type &lhs, const value_type &rhs) const - -> decltype(comp(lhs.first, rhs.first)) { - return comp(lhs.first, rhs.first); - } -}; - -template -struct common_params : common_policy_traits { - using original_key_compare = Compare; - - // If Compare is a common comparator for a string-like type, then we adapt it - // to use heterogeneous lookup and to be a key-compare-to comparator. - // We also adapt the comparator to diagnose invalid comparators in debug mode. - // We disable this when `Compare` is invalid in a way that will cause - // adaptation to fail (having invalid return type) so that we can give a - // better compilation failure in static_assert_validation. If we don't do - // this, then there will be cascading compilation failures that are confusing - // for users. - using key_compare = - absl::conditional_t(), - Compare, - typename key_compare_adapter::type>; - - static constexpr bool kIsKeyCompareStringAdapted = - std::is_same::value || - std::is_same::value; - static constexpr bool kIsKeyCompareTransparent = - IsTransparent::value || kIsKeyCompareStringAdapted; - static constexpr bool kEnableGenerations = -#ifdef ABSL_BTREE_ENABLE_GENERATIONS - true; -#else - false; -#endif - - // A type which indicates if we have a key-compare-to functor or a plain old - // key-compare functor. - using is_key_compare_to = btree_is_key_compare_to; - - using allocator_type = Alloc; - using key_type = Key; - using size_type = size_t; - using difference_type = ptrdiff_t; - - using slot_policy = SlotPolicy; - using slot_type = typename slot_policy::slot_type; - using value_type = typename slot_policy::value_type; - using init_type = typename slot_policy::mutable_value_type; - using pointer = value_type *; - using const_pointer = const value_type *; - using reference = value_type &; - using const_reference = const value_type &; - - using value_compare = - absl::conditional_t, - original_key_compare>; - using is_map_container = std::integral_constant; - - // For the given lookup key type, returns whether we can have multiple - // equivalent keys in the btree. If this is a multi-container, then we can. - // Otherwise, we can have multiple equivalent keys only if all of the - // following conditions are met: - // - The comparator is transparent. - // - The lookup key type is not the same as key_type. - // - The comparator is not a StringBtreeDefault{Less,Greater} comparator - // that we know has the same equivalence classes for all lookup types. - template - constexpr static bool can_have_multiple_equivalent_keys() { - return IsMulti || (IsTransparent::value && - !std::is_same::value && - !kIsKeyCompareStringAdapted); - } - - enum { - kTargetNodeSize = TargetNodeSize, - - // Upper bound for the available space for slots. This is largest for leaf - // nodes, which have overhead of at least a pointer + 4 bytes (for storing - // 3 field_types and an enum). - kNodeSlotSpace = TargetNodeSize - /*minimum overhead=*/(sizeof(void *) + 4), - }; - - // This is an integral type large enough to hold as many slots as will fit a - // node of TargetNodeSize bytes. - using node_count_type = - absl::conditional_t<(kNodeSlotSpace / sizeof(slot_type) > - (std::numeric_limits::max)()), - uint16_t, uint8_t>; // NOLINT -}; - -// An adapter class that converts a lower-bound compare into an upper-bound -// compare. Note: there is no need to make a version of this adapter specialized -// for key-compare-to functors because the upper-bound (the first value greater -// than the input) is never an exact match. -template -struct upper_bound_adapter { - explicit upper_bound_adapter(const Compare &c) : comp(c) {} - template - bool operator()(const K1 &a, const K2 &b) const { - // Returns true when a is not greater than b. - return !compare_internal::compare_result_as_less_than(comp(b, a)); - } - - private: - Compare comp; -}; - -enum class MatchKind : uint8_t { kEq, kNe }; - -template -struct SearchResult { - V value; - MatchKind match; - - static constexpr bool HasMatch() { return true; } - bool IsEq() const { return match == MatchKind::kEq; } -}; - -// When we don't use CompareTo, `match` is not present. -// This ensures that callers can't use it accidentally when it provides no -// useful information. -template -struct SearchResult { - SearchResult() {} - explicit SearchResult(V v) : value(v) {} - SearchResult(V v, MatchKind /*match*/) : value(v) {} - - V value; - - static constexpr bool HasMatch() { return false; } - static constexpr bool IsEq() { return false; } -}; - -// A node in the btree holding. The same node type is used for both internal -// and leaf nodes in the btree, though the nodes are allocated in such a way -// that the children array is only valid in internal nodes. -template -class btree_node { - using is_key_compare_to = typename Params::is_key_compare_to; - using field_type = typename Params::node_count_type; - using allocator_type = typename Params::allocator_type; - using slot_type = typename Params::slot_type; - using original_key_compare = typename Params::original_key_compare; - - public: - using params_type = Params; - using key_type = typename Params::key_type; - using value_type = typename Params::value_type; - using pointer = typename Params::pointer; - using const_pointer = typename Params::const_pointer; - using reference = typename Params::reference; - using const_reference = typename Params::const_reference; - using key_compare = typename Params::key_compare; - using size_type = typename Params::size_type; - using difference_type = typename Params::difference_type; - - // Btree decides whether to use linear node search as follows: - // - If the comparator expresses a preference, use that. - // - If the key expresses a preference, use that. - // - If the key is arithmetic and the comparator is std::less or - // std::greater, choose linear. - // - Otherwise, choose binary. - // TODO(ezb): Might make sense to add condition(s) based on node-size. - using use_linear_search = std::integral_constant< - bool, has_linear_node_search_preference::value - ? prefers_linear_node_search::value - : has_linear_node_search_preference::value - ? prefers_linear_node_search::value - : std::is_arithmetic::value && - (std::is_same, - original_key_compare>::value || - std::is_same, - original_key_compare>::value)>; - - // This class is organized by absl::container_internal::Layout as if it had - // the following structure: - // // A pointer to the node's parent. - // btree_node *parent; - // - // // When ABSL_BTREE_ENABLE_GENERATIONS is defined, we also have a - // // generation integer in order to check that when iterators are - // // used, they haven't been invalidated already. Only the generation on - // // the root is used, but we have one on each node because whether a node - // // is root or not can change. - // uint32_t generation; - // - // // The position of the node in the node's parent. - // field_type position; - // // The index of the first populated value in `values`. - // // TODO(ezb): right now, `start` is always 0. Update insertion/merge - // // logic to allow for floating storage within nodes. - // field_type start; - // // The index after the last populated value in `values`. Currently, this - // // is the same as the count of values. - // field_type finish; - // // The maximum number of values the node can hold. This is an integer in - // // [1, kNodeSlots] for root leaf nodes, kNodeSlots for non-root leaf - // // nodes, and kInternalNodeMaxCount (as a sentinel value) for internal - // // nodes (even though there are still kNodeSlots values in the node). - // // TODO(ezb): make max_count use only 4 bits and record log2(capacity) - // // to free extra bits for is_root, etc. - // field_type max_count; - // - // // The array of values. The capacity is `max_count` for leaf nodes and - // // kNodeSlots for internal nodes. Only the values in - // // [start, finish) have been initialized and are valid. - // slot_type values[max_count]; - // - // // The array of child pointers. The keys in children[i] are all less - // // than key(i). The keys in children[i + 1] are all greater than key(i). - // // There are 0 children for leaf nodes and kNodeSlots + 1 children for - // // internal nodes. - // btree_node *children[kNodeSlots + 1]; - // - // This class is only constructed by EmptyNodeType. Normally, pointers to the - // layout above are allocated, cast to btree_node*, and de-allocated within - // the btree implementation. - ~btree_node() = default; - btree_node(btree_node const &) = delete; - btree_node &operator=(btree_node const &) = delete; - - // Public for EmptyNodeType. - constexpr static size_type Alignment() { - static_assert(LeafLayout(1).Alignment() == InternalLayout().Alignment(), - "Alignment of all nodes must be equal."); - return InternalLayout().Alignment(); - } - - protected: - btree_node() = default; - - private: - using layout_type = - absl::container_internal::Layout; - constexpr static size_type SizeWithNSlots(size_type n) { - return layout_type( - /*parent*/ 1, - /*generation*/ params_type::kEnableGenerations ? 1 : 0, - /*position, start, finish, max_count*/ 4, - /*slots*/ n, - /*children*/ 0) - .AllocSize(); - } - // A lower bound for the overhead of fields other than slots in a leaf node. - constexpr static size_type MinimumOverhead() { - return SizeWithNSlots(1) - sizeof(slot_type); - } - - // Compute how many values we can fit onto a leaf node taking into account - // padding. - constexpr static size_type NodeTargetSlots(const size_type begin, - const size_type end) { - return begin == end ? begin - : SizeWithNSlots((begin + end) / 2 + 1) > - params_type::kTargetNodeSize - ? NodeTargetSlots(begin, (begin + end) / 2) - : NodeTargetSlots((begin + end) / 2 + 1, end); - } - - constexpr static size_type kTargetNodeSize = params_type::kTargetNodeSize; - constexpr static size_type kNodeTargetSlots = - NodeTargetSlots(0, kTargetNodeSize); - - // We need a minimum of 3 slots per internal node in order to perform - // splitting (1 value for the two nodes involved in the split and 1 value - // propagated to the parent as the delimiter for the split). For performance - // reasons, we don't allow 3 slots-per-node due to bad worst case occupancy of - // 1/3 (for a node, not a b-tree). - constexpr static size_type kMinNodeSlots = 4; - - constexpr static size_type kNodeSlots = - kNodeTargetSlots >= kMinNodeSlots ? kNodeTargetSlots : kMinNodeSlots; - - // The node is internal (i.e. is not a leaf node) if and only if `max_count` - // has this value. - constexpr static field_type kInternalNodeMaxCount = 0; - - // Leaves can have less than kNodeSlots values. - constexpr static layout_type LeafLayout( - const size_type slot_count = kNodeSlots) { - return layout_type( - /*parent*/ 1, - /*generation*/ params_type::kEnableGenerations ? 1 : 0, - /*position, start, finish, max_count*/ 4, - /*slots*/ slot_count, - /*children*/ 0); - } - constexpr static layout_type InternalLayout() { - return layout_type( - /*parent*/ 1, - /*generation*/ params_type::kEnableGenerations ? 1 : 0, - /*position, start, finish, max_count*/ 4, - /*slots*/ kNodeSlots, - /*children*/ kNodeSlots + 1); - } - constexpr static size_type LeafSize(const size_type slot_count = kNodeSlots) { - return LeafLayout(slot_count).AllocSize(); - } - constexpr static size_type InternalSize() { - return InternalLayout().AllocSize(); - } - - // N is the index of the type in the Layout definition. - // ElementType is the Nth type in the Layout definition. - template - inline typename layout_type::template ElementType *GetField() { - // We assert that we don't read from values that aren't there. - assert(N < 4 || is_internal()); - return InternalLayout().template Pointer(reinterpret_cast(this)); - } - template - inline const typename layout_type::template ElementType *GetField() const { - assert(N < 4 || is_internal()); - return InternalLayout().template Pointer( - reinterpret_cast(this)); - } - void set_parent(btree_node *p) { *GetField<0>() = p; } - field_type &mutable_finish() { return GetField<2>()[2]; } - slot_type *slot(size_type i) { return &GetField<3>()[i]; } - slot_type *start_slot() { return slot(start()); } - slot_type *finish_slot() { return slot(finish()); } - const slot_type *slot(size_type i) const { return &GetField<3>()[i]; } - void set_position(field_type v) { GetField<2>()[0] = v; } - void set_start(field_type v) { GetField<2>()[1] = v; } - void set_finish(field_type v) { GetField<2>()[2] = v; } - // This method is only called by the node init methods. - void set_max_count(field_type v) { GetField<2>()[3] = v; } - - public: - // Whether this is a leaf node or not. This value doesn't change after the - // node is created. - bool is_leaf() const { return GetField<2>()[3] != kInternalNodeMaxCount; } - // Whether this is an internal node or not. This value doesn't change after - // the node is created. - bool is_internal() const { return !is_leaf(); } - - // Getter for the position of this node in its parent. - field_type position() const { return GetField<2>()[0]; } - - // Getter for the offset of the first value in the `values` array. - field_type start() const { - // TODO(ezb): when floating storage is implemented, return GetField<2>()[1]; - assert(GetField<2>()[1] == 0); - return 0; - } - - // Getter for the offset after the last value in the `values` array. - field_type finish() const { return GetField<2>()[2]; } - - // Getters for the number of values stored in this node. - field_type count() const { - assert(finish() >= start()); - return finish() - start(); - } - field_type max_count() const { - // Internal nodes have max_count==kInternalNodeMaxCount. - // Leaf nodes have max_count in [1, kNodeSlots]. - const field_type max_count = GetField<2>()[3]; - return max_count == field_type{kInternalNodeMaxCount} - ? field_type{kNodeSlots} - : max_count; - } - - // Getter for the parent of this node. - btree_node *parent() const { return *GetField<0>(); } - // Getter for whether the node is the root of the tree. The parent of the - // root of the tree is the leftmost node in the tree which is guaranteed to - // be a leaf. - bool is_root() const { return parent()->is_leaf(); } - void make_root() { - assert(parent()->is_root()); - set_generation(parent()->generation()); - set_parent(parent()->parent()); - } - - // Gets the root node's generation integer, which is the one used by the tree. - uint32_t *get_root_generation() const { - assert(params_type::kEnableGenerations); - const btree_node *curr = this; - for (; !curr->is_root(); curr = curr->parent()) continue; - return const_cast(&curr->GetField<1>()[0]); - } - - // Returns the generation for iterator validation. - uint32_t generation() const { - return params_type::kEnableGenerations ? *get_root_generation() : 0; - } - // Updates generation. Should only be called on a root node or during node - // initialization. - void set_generation(uint32_t generation) { - if (params_type::kEnableGenerations) GetField<1>()[0] = generation; - } - // Updates the generation. We do this whenever the node is mutated. - void next_generation() { - if (params_type::kEnableGenerations) ++*get_root_generation(); - } - - // Getters for the key/value at position i in the node. - const key_type &key(size_type i) const { return params_type::key(slot(i)); } - reference value(size_type i) { return params_type::element(slot(i)); } - const_reference value(size_type i) const { - return params_type::element(slot(i)); - } - - // Getters/setter for the child at position i in the node. - btree_node *child(field_type i) const { return GetField<4>()[i]; } - btree_node *start_child() const { return child(start()); } - btree_node *&mutable_child(field_type i) { return GetField<4>()[i]; } - void clear_child(field_type i) { - absl::container_internal::SanitizerPoisonObject(&mutable_child(i)); - } - void set_child(field_type i, btree_node *c) { - absl::container_internal::SanitizerUnpoisonObject(&mutable_child(i)); - mutable_child(i) = c; - c->set_position(i); - } - void init_child(field_type i, btree_node *c) { - set_child(i, c); - c->set_parent(this); - } - - // Returns the position of the first value whose key is not less than k. - template - SearchResult lower_bound( - const K &k, const key_compare &comp) const { - return use_linear_search::value ? linear_search(k, comp) - : binary_search(k, comp); - } - // Returns the position of the first value whose key is greater than k. - template - size_type upper_bound(const K &k, const key_compare &comp) const { - auto upper_compare = upper_bound_adapter(comp); - return use_linear_search::value ? linear_search(k, upper_compare).value - : binary_search(k, upper_compare).value; - } - - template - SearchResult::value> - linear_search(const K &k, const Compare &comp) const { - return linear_search_impl(k, start(), finish(), comp, - btree_is_key_compare_to()); - } - - template - SearchResult::value> - binary_search(const K &k, const Compare &comp) const { - return binary_search_impl(k, start(), finish(), comp, - btree_is_key_compare_to()); - } - - // Returns the position of the first value whose key is not less than k using - // linear search performed using plain compare. - template - SearchResult linear_search_impl( - const K &k, size_type s, const size_type e, const Compare &comp, - std::false_type /* IsCompareTo */) const { - while (s < e) { - if (!comp(key(s), k)) { - break; - } - ++s; - } - return SearchResult{s}; - } - - // Returns the position of the first value whose key is not less than k using - // linear search performed using compare-to. - template - SearchResult linear_search_impl( - const K &k, size_type s, const size_type e, const Compare &comp, - std::true_type /* IsCompareTo */) const { - while (s < e) { - const absl::weak_ordering c = comp(key(s), k); - if (c == 0) { - return {s, MatchKind::kEq}; - } else if (c > 0) { - break; - } - ++s; - } - return {s, MatchKind::kNe}; - } - - // Returns the position of the first value whose key is not less than k using - // binary search performed using plain compare. - template - SearchResult binary_search_impl( - const K &k, size_type s, size_type e, const Compare &comp, - std::false_type /* IsCompareTo */) const { - while (s != e) { - const size_type mid = (s + e) >> 1; - if (comp(key(mid), k)) { - s = mid + 1; - } else { - e = mid; - } - } - return SearchResult{s}; - } - - // Returns the position of the first value whose key is not less than k using - // binary search performed using compare-to. - template - SearchResult binary_search_impl( - const K &k, size_type s, size_type e, const CompareTo &comp, - std::true_type /* IsCompareTo */) const { - if (params_type::template can_have_multiple_equivalent_keys()) { - MatchKind exact_match = MatchKind::kNe; - while (s != e) { - const size_type mid = (s + e) >> 1; - const absl::weak_ordering c = comp(key(mid), k); - if (c < 0) { - s = mid + 1; - } else { - e = mid; - if (c == 0) { - // Need to return the first value whose key is not less than k, - // which requires continuing the binary search if there could be - // multiple equivalent keys. - exact_match = MatchKind::kEq; - } - } - } - return {s, exact_match}; - } else { // Can't have multiple equivalent keys. - while (s != e) { - const size_type mid = (s + e) >> 1; - const absl::weak_ordering c = comp(key(mid), k); - if (c < 0) { - s = mid + 1; - } else if (c > 0) { - e = mid; - } else { - return {mid, MatchKind::kEq}; - } - } - return {s, MatchKind::kNe}; - } - } - - // Emplaces a value at position i, shifting all existing values and - // children at positions >= i to the right by 1. - template - void emplace_value(field_type i, allocator_type *alloc, Args &&...args); - - // Removes the values at positions [i, i + to_erase), shifting all existing - // values and children after that range to the left by to_erase. Clears all - // children between [i, i + to_erase). - void remove_values(field_type i, field_type to_erase, allocator_type *alloc); - - // Rebalances a node with its right sibling. - void rebalance_right_to_left(field_type to_move, btree_node *right, - allocator_type *alloc); - void rebalance_left_to_right(field_type to_move, btree_node *right, - allocator_type *alloc); - - // Splits a node, moving a portion of the node's values to its right sibling. - void split(int insert_position, btree_node *dest, allocator_type *alloc); - - // Merges a node with its right sibling, moving all of the values and the - // delimiting key in the parent node onto itself, and deleting the src node. - void merge(btree_node *src, allocator_type *alloc); - - // Node allocation/deletion routines. - void init_leaf(field_type max_count, btree_node *parent) { - set_generation(0); - set_parent(parent); - set_position(0); - set_start(0); - set_finish(0); - set_max_count(max_count); - absl::container_internal::SanitizerPoisonMemoryRegion( - start_slot(), max_count * sizeof(slot_type)); - } - void init_internal(btree_node *parent) { - init_leaf(kNodeSlots, parent); - // Set `max_count` to a sentinel value to indicate that this node is - // internal. - set_max_count(kInternalNodeMaxCount); - absl::container_internal::SanitizerPoisonMemoryRegion( - &mutable_child(start()), (kNodeSlots + 1) * sizeof(btree_node *)); - } - - static void deallocate(const size_type size, btree_node *node, - allocator_type *alloc) { - absl::container_internal::SanitizerUnpoisonMemoryRegion(node, size); - absl::container_internal::Deallocate(alloc, node, size); - } - - // Deletes a node and all of its children. - static void clear_and_delete(btree_node *node, allocator_type *alloc); - - private: - template - void value_init(const field_type i, allocator_type *alloc, Args &&...args) { - next_generation(); - absl::container_internal::SanitizerUnpoisonObject(slot(i)); - params_type::construct(alloc, slot(i), std::forward(args)...); - } - void value_destroy(const field_type i, allocator_type *alloc) { - next_generation(); - params_type::destroy(alloc, slot(i)); - absl::container_internal::SanitizerPoisonObject(slot(i)); - } - void value_destroy_n(const field_type i, const field_type n, - allocator_type *alloc) { - next_generation(); - for (slot_type *s = slot(i), *end = slot(i + n); s != end; ++s) { - params_type::destroy(alloc, s); - absl::container_internal::SanitizerPoisonObject(s); - } - } - - static void transfer(slot_type *dest, slot_type *src, allocator_type *alloc) { - absl::container_internal::SanitizerUnpoisonObject(dest); - params_type::transfer(alloc, dest, src); - absl::container_internal::SanitizerPoisonObject(src); - } - - // Transfers value from slot `src_i` in `src_node` to slot `dest_i` in `this`. - void transfer(const size_type dest_i, const size_type src_i, - btree_node *src_node, allocator_type *alloc) { - next_generation(); - transfer(slot(dest_i), src_node->slot(src_i), alloc); - } - - // Transfers `n` values starting at value `src_i` in `src_node` into the - // values starting at value `dest_i` in `this`. - void transfer_n(const size_type n, const size_type dest_i, - const size_type src_i, btree_node *src_node, - allocator_type *alloc) { - next_generation(); - for (slot_type *src = src_node->slot(src_i), *end = src + n, - *dest = slot(dest_i); - src != end; ++src, ++dest) { - transfer(dest, src, alloc); - } - } - - // Same as above, except that we start at the end and work our way to the - // beginning. - void transfer_n_backward(const size_type n, const size_type dest_i, - const size_type src_i, btree_node *src_node, - allocator_type *alloc) { - next_generation(); - for (slot_type *src = src_node->slot(src_i + n), *end = src - n, - *dest = slot(dest_i + n); - src != end; --src, --dest) { - // If we modified the loop index calculations above to avoid the -1s here, - // it would result in UB in the computation of `end` (and possibly `src` - // as well, if n == 0), since slot() is effectively an array index and it - // is UB to compute the address of any out-of-bounds array element except - // for one-past-the-end. - transfer(dest - 1, src - 1, alloc); - } - } - - template - friend class btree; - template - friend class btree_iterator; - friend class BtreeNodePeer; - friend struct btree_access; -}; - -template -bool AreNodesFromSameContainer(const Node *node_a, const Node *node_b) { - // If either node is null, then give up on checking whether they're from the - // same container. (If exactly one is null, then we'll trigger the - // default-constructed assert in Equals.) - if (node_a == nullptr || node_b == nullptr) return true; - while (!node_a->is_root()) node_a = node_a->parent(); - while (!node_b->is_root()) node_b = node_b->parent(); - return node_a == node_b; -} - -class btree_iterator_generation_info_enabled { - public: - explicit btree_iterator_generation_info_enabled(uint32_t g) - : generation_(g) {} - - // Updates the generation. For use internally right before we return an - // iterator to the user. - template - void update_generation(const Node *node) { - if (node != nullptr) generation_ = node->generation(); - } - uint32_t generation() const { return generation_; } - - template - void assert_valid_generation(const Node *node) const { - if (node != nullptr && node->generation() != generation_) { - ABSL_INTERNAL_LOG( - FATAL, - "Attempting to use an invalidated iterator. The corresponding b-tree " - "container has been mutated since this iterator was constructed."); - } - } - - private: - // Used to check that the iterator hasn't been invalidated. - uint32_t generation_; -}; - -class btree_iterator_generation_info_disabled { - public: - explicit btree_iterator_generation_info_disabled(uint32_t) {} - void update_generation(const void *) {} - uint32_t generation() const { return 0; } - void assert_valid_generation(const void *) const {} -}; - -#ifdef ABSL_BTREE_ENABLE_GENERATIONS -using btree_iterator_generation_info = btree_iterator_generation_info_enabled; -#else -using btree_iterator_generation_info = btree_iterator_generation_info_disabled; -#endif - -template -class btree_iterator : private btree_iterator_generation_info { - using field_type = typename Node::field_type; - using key_type = typename Node::key_type; - using size_type = typename Node::size_type; - using params_type = typename Node::params_type; - using is_map_container = typename params_type::is_map_container; - - using node_type = Node; - using normal_node = typename std::remove_const::type; - using const_node = const Node; - using normal_pointer = typename params_type::pointer; - using normal_reference = typename params_type::reference; - using const_pointer = typename params_type::const_pointer; - using const_reference = typename params_type::const_reference; - using slot_type = typename params_type::slot_type; - - using iterator = - btree_iterator; - using const_iterator = - btree_iterator; - - public: - // These aliases are public for std::iterator_traits. - using difference_type = typename Node::difference_type; - using value_type = typename params_type::value_type; - using pointer = Pointer; - using reference = Reference; - using iterator_category = std::bidirectional_iterator_tag; - - btree_iterator() : btree_iterator(nullptr, -1) {} - explicit btree_iterator(Node *n) : btree_iterator(n, n->start()) {} - btree_iterator(Node *n, int p) - : btree_iterator_generation_info(n != nullptr ? n->generation() - : ~uint32_t{}), - node_(n), - position_(p) {} - - // NOTE: this SFINAE allows for implicit conversions from iterator to - // const_iterator, but it specifically avoids hiding the copy constructor so - // that the trivial one will be used when possible. - template , iterator>::value && - std::is_same::value, - int> = 0> - btree_iterator(const btree_iterator other) // NOLINT - : btree_iterator_generation_info(other), - node_(other.node_), - position_(other.position_) {} - - bool operator==(const iterator &other) const { - return Equals(other); - } - bool operator==(const const_iterator &other) const { - return Equals(other); - } - bool operator!=(const iterator &other) const { - return !Equals(other); - } - bool operator!=(const const_iterator &other) const { - return !Equals(other); - } - - // Returns n such that n calls to ++other yields *this. - // Precondition: n exists. - difference_type operator-(const_iterator other) const { - if (node_ == other.node_) { - if (node_->is_leaf()) return position_ - other.position_; - if (position_ == other.position_) return 0; - } - return distance_slow(other); - } - - // Accessors for the key/value the iterator is pointing at. - reference operator*() const { - ABSL_HARDENING_ASSERT(node_ != nullptr); - assert_valid_generation(node_); - ABSL_HARDENING_ASSERT(position_ >= node_->start()); - if (position_ >= node_->finish()) { - ABSL_HARDENING_ASSERT(!IsEndIterator() && "Dereferencing end() iterator"); - ABSL_HARDENING_ASSERT(position_ < node_->finish()); - } - return node_->value(static_cast(position_)); - } - pointer operator->() const { return &operator*(); } - - btree_iterator &operator++() { - increment(); - return *this; - } - btree_iterator &operator--() { - decrement(); - return *this; - } - btree_iterator operator++(int) { - btree_iterator tmp = *this; - ++*this; - return tmp; - } - btree_iterator operator--(int) { - btree_iterator tmp = *this; - --*this; - return tmp; - } - - private: - friend iterator; - friend const_iterator; - template - friend class btree; - template - friend class btree_container; - template - friend class btree_set_container; - template - friend class btree_map_container; - template - friend class btree_multiset_container; - template - friend class base_checker; - friend struct btree_access; - - // This SFINAE allows explicit conversions from const_iterator to - // iterator, but also avoids hiding the copy constructor. - // NOTE: the const_cast is safe because this constructor is only called by - // non-const methods and the container owns the nodes. - template , const_iterator>::value && - std::is_same::value, - int> = 0> - explicit btree_iterator(const btree_iterator other) - : btree_iterator_generation_info(other.generation()), - node_(const_cast(other.node_)), - position_(other.position_) {} - - bool Equals(const const_iterator other) const { - ABSL_HARDENING_ASSERT(((node_ == nullptr && other.node_ == nullptr) || - (node_ != nullptr && other.node_ != nullptr)) && - "Comparing default-constructed iterator with " - "non-default-constructed iterator."); - // Note: we use assert instead of ABSL_HARDENING_ASSERT here because this - // changes the complexity of Equals from O(1) to O(log(N) + log(M)) where - // N/M are sizes of the containers containing node_/other.node_. - assert(AreNodesFromSameContainer(node_, other.node_) && - "Comparing iterators from different containers."); - assert_valid_generation(node_); - other.assert_valid_generation(other.node_); - return node_ == other.node_ && position_ == other.position_; - } - - bool IsEndIterator() const { - if (position_ != node_->finish()) return false; - node_type *node = node_; - while (!node->is_root()) { - if (node->position() != node->parent()->finish()) return false; - node = node->parent(); - } - return true; - } - - // Returns n such that n calls to ++other yields *this. - // Precondition: n exists && (this->node_ != other.node_ || - // !this->node_->is_leaf() || this->position_ != other.position_). - difference_type distance_slow(const_iterator other) const; - - // Increment/decrement the iterator. - void increment() { - assert_valid_generation(node_); - if (node_->is_leaf() && ++position_ < node_->finish()) { - return; - } - increment_slow(); - } - void increment_slow(); - - void decrement() { - assert_valid_generation(node_); - if (node_->is_leaf() && --position_ >= node_->start()) { - return; - } - decrement_slow(); - } - void decrement_slow(); - - const key_type &key() const { - return node_->key(static_cast(position_)); - } - decltype(std::declval()->slot(0)) slot() { - return node_->slot(static_cast(position_)); - } - - void update_generation() { - btree_iterator_generation_info::update_generation(node_); - } - - // The node in the tree the iterator is pointing at. - Node *node_; - // The position within the node of the tree the iterator is pointing at. - // NOTE: this is an int rather than a field_type because iterators can point - // to invalid positions (such as -1) in certain circumstances. - int position_; -}; - -template -class btree { - using node_type = btree_node; - using is_key_compare_to = typename Params::is_key_compare_to; - using field_type = typename node_type::field_type; - - // We use a static empty node for the root/leftmost/rightmost of empty btrees - // in order to avoid branching in begin()/end(). - struct alignas(node_type::Alignment()) EmptyNodeType : node_type { - using field_type = typename node_type::field_type; - node_type *parent; -#ifdef ABSL_BTREE_ENABLE_GENERATIONS - uint32_t generation = 0; -#endif - field_type position = 0; - field_type start = 0; - field_type finish = 0; - // max_count must be != kInternalNodeMaxCount (so that this node is regarded - // as a leaf node). max_count() is never called when the tree is empty. - field_type max_count = node_type::kInternalNodeMaxCount + 1; - -#ifdef _MSC_VER - // MSVC has constexpr code generations bugs here. - EmptyNodeType() : parent(this) {} -#else - explicit constexpr EmptyNodeType(node_type *p) : parent(p) {} -#endif - }; - - static node_type *EmptyNode() { -#ifdef _MSC_VER - static EmptyNodeType *empty_node = new EmptyNodeType; - // This assert fails on some other construction methods. - assert(empty_node->parent == empty_node); - return empty_node; -#else - static constexpr EmptyNodeType empty_node( - const_cast(&empty_node)); - return const_cast(&empty_node); -#endif - } - - enum : uint32_t { - kNodeSlots = node_type::kNodeSlots, - kMinNodeValues = kNodeSlots / 2, - }; - - struct node_stats { - using size_type = typename Params::size_type; - - node_stats(size_type l, size_type i) : leaf_nodes(l), internal_nodes(i) {} - - node_stats &operator+=(const node_stats &other) { - leaf_nodes += other.leaf_nodes; - internal_nodes += other.internal_nodes; - return *this; - } - - size_type leaf_nodes; - size_type internal_nodes; - }; - - public: - using key_type = typename Params::key_type; - using value_type = typename Params::value_type; - using size_type = typename Params::size_type; - using difference_type = typename Params::difference_type; - using key_compare = typename Params::key_compare; - using original_key_compare = typename Params::original_key_compare; - using value_compare = typename Params::value_compare; - using allocator_type = typename Params::allocator_type; - using reference = typename Params::reference; - using const_reference = typename Params::const_reference; - using pointer = typename Params::pointer; - using const_pointer = typename Params::const_pointer; - using iterator = - typename btree_iterator::iterator; - using const_iterator = typename iterator::const_iterator; - using reverse_iterator = std::reverse_iterator; - using const_reverse_iterator = std::reverse_iterator; - using node_handle_type = node_handle; - - // Internal types made public for use by btree_container types. - using params_type = Params; - using slot_type = typename Params::slot_type; - - private: - // Copies or moves (depending on the template parameter) the values in - // other into this btree in their order in other. This btree must be empty - // before this method is called. This method is used in copy construction, - // copy assignment, and move assignment. - template - void copy_or_move_values_in_order(Btree &other); - - // Validates that various assumptions/requirements are true at compile time. - constexpr static bool static_assert_validation(); - - public: - btree(const key_compare &comp, const allocator_type &alloc) - : root_(EmptyNode()), rightmost_(comp, alloc, EmptyNode()), size_(0) {} - - btree(const btree &other) : btree(other, other.allocator()) {} - btree(const btree &other, const allocator_type &alloc) - : btree(other.key_comp(), alloc) { - copy_or_move_values_in_order(other); - } - btree(btree &&other) noexcept - : root_(absl::exchange(other.root_, EmptyNode())), - rightmost_(std::move(other.rightmost_)), - size_(absl::exchange(other.size_, 0u)) { - other.mutable_rightmost() = EmptyNode(); - } - btree(btree &&other, const allocator_type &alloc) - : btree(other.key_comp(), alloc) { - if (alloc == other.allocator()) { - swap(other); - } else { - // Move values from `other` one at a time when allocators are different. - copy_or_move_values_in_order(other); - } - } - - ~btree() { - // Put static_asserts in destructor to avoid triggering them before the type - // is complete. - static_assert(static_assert_validation(), "This call must be elided."); - clear(); - } - - // Assign the contents of other to *this. - btree &operator=(const btree &other); - btree &operator=(btree &&other) noexcept; - - iterator begin() { return iterator(leftmost()); } - const_iterator begin() const { return const_iterator(leftmost()); } - iterator end() { return iterator(rightmost(), rightmost()->finish()); } - const_iterator end() const { - return const_iterator(rightmost(), rightmost()->finish()); - } - reverse_iterator rbegin() { return reverse_iterator(end()); } - const_reverse_iterator rbegin() const { - return const_reverse_iterator(end()); - } - reverse_iterator rend() { return reverse_iterator(begin()); } - const_reverse_iterator rend() const { - return const_reverse_iterator(begin()); - } - - // Finds the first element whose key is not less than `key`. - template - iterator lower_bound(const K &key) { - return internal_end(internal_lower_bound(key).value); - } - template - const_iterator lower_bound(const K &key) const { - return internal_end(internal_lower_bound(key).value); - } - - // Finds the first element whose key is not less than `key` and also returns - // whether that element is equal to `key`. - template - std::pair lower_bound_equal(const K &key) const; - - // Finds the first element whose key is greater than `key`. - template - iterator upper_bound(const K &key) { - return internal_end(internal_upper_bound(key)); - } - template - const_iterator upper_bound(const K &key) const { - return internal_end(internal_upper_bound(key)); - } - - // Finds the range of values which compare equal to key. The first member of - // the returned pair is equal to lower_bound(key). The second member of the - // pair is equal to upper_bound(key). - template - std::pair equal_range(const K &key); - template - std::pair equal_range(const K &key) const { - return const_cast(this)->equal_range(key); - } - - // Inserts a value into the btree only if it does not already exist. The - // boolean return value indicates whether insertion succeeded or failed. - // Requirement: if `key` already exists in the btree, does not consume `args`. - // Requirement: `key` is never referenced after consuming `args`. - template - std::pair insert_unique(const K &key, Args &&...args); - - // Inserts with hint. Checks to see if the value should be placed immediately - // before `position` in the tree. If so, then the insertion will take - // amortized constant time. If not, the insertion will take amortized - // logarithmic time as if a call to insert_unique() were made. - // Requirement: if `key` already exists in the btree, does not consume `args`. - // Requirement: `key` is never referenced after consuming `args`. - template - std::pair insert_hint_unique(iterator position, const K &key, - Args &&...args); - - // Insert a range of values into the btree. - // Note: the first overload avoids constructing a value_type if the key - // already exists in the btree. - template ()( - params_type::key(*std::declval()), - std::declval()))> - void insert_iterator_unique(InputIterator b, InputIterator e, int); - // We need the second overload for cases in which we need to construct a - // value_type in order to compare it with the keys already in the btree. - template - void insert_iterator_unique(InputIterator b, InputIterator e, char); - - // Inserts a value into the btree. - template - iterator insert_multi(const key_type &key, ValueType &&v); - - // Inserts a value into the btree. - template - iterator insert_multi(ValueType &&v) { - return insert_multi(params_type::key(v), std::forward(v)); - } - - // Insert with hint. Check to see if the value should be placed immediately - // before position in the tree. If it does, then the insertion will take - // amortized constant time. If not, the insertion will take amortized - // logarithmic time as if a call to insert_multi(v) were made. - template - iterator insert_hint_multi(iterator position, ValueType &&v); - - // Insert a range of values into the btree. - template - void insert_iterator_multi(InputIterator b, InputIterator e); - - // Erase the specified iterator from the btree. The iterator must be valid - // (i.e. not equal to end()). Return an iterator pointing to the node after - // the one that was erased (or end() if none exists). - // Requirement: does not read the value at `*iter`. - iterator erase(iterator iter); - - // Erases range. Returns the number of keys erased and an iterator pointing - // to the element after the last erased element. - std::pair erase_range(iterator begin, iterator end); - - // Finds an element with key equivalent to `key` or returns `end()` if `key` - // is not present. - template - iterator find(const K &key) { - return internal_end(internal_find(key)); - } - template - const_iterator find(const K &key) const { - return internal_end(internal_find(key)); - } - - // Clear the btree, deleting all of the values it contains. - void clear(); - - // Swaps the contents of `this` and `other`. - void swap(btree &other); - - const key_compare &key_comp() const noexcept { - return rightmost_.template get<0>(); - } - template - bool compare_keys(const K1 &a, const K2 &b) const { - return compare_internal::compare_result_as_less_than(key_comp()(a, b)); - } - - value_compare value_comp() const { - return value_compare(original_key_compare(key_comp())); - } - - // Verifies the structure of the btree. - void verify() const; - - // Size routines. - size_type size() const { return size_; } - size_type max_size() const { return (std::numeric_limits::max)(); } - bool empty() const { return size_ == 0; } - - // The height of the btree. An empty tree will have height 0. - size_type height() const { - size_type h = 0; - if (!empty()) { - // Count the length of the chain from the leftmost node up to the - // root. We actually count from the root back around to the level below - // the root, but the calculation is the same because of the circularity - // of that traversal. - const node_type *n = root(); - do { - ++h; - n = n->parent(); - } while (n != root()); - } - return h; - } - - // The number of internal, leaf and total nodes used by the btree. - size_type leaf_nodes() const { return internal_stats(root()).leaf_nodes; } - size_type internal_nodes() const { - return internal_stats(root()).internal_nodes; - } - size_type nodes() const { - node_stats stats = internal_stats(root()); - return stats.leaf_nodes + stats.internal_nodes; - } - - // The total number of bytes used by the btree. - // TODO(b/169338300): update to support node_btree_*. - size_type bytes_used() const { - node_stats stats = internal_stats(root()); - if (stats.leaf_nodes == 1 && stats.internal_nodes == 0) { - return sizeof(*this) + node_type::LeafSize(root()->max_count()); - } else { - return sizeof(*this) + stats.leaf_nodes * node_type::LeafSize() + - stats.internal_nodes * node_type::InternalSize(); - } - } - - // The average number of bytes used per value stored in the btree assuming - // random insertion order. - static double average_bytes_per_value() { - // The expected number of values per node with random insertion order is the - // average of the maximum and minimum numbers of values per node. - const double expected_values_per_node = (kNodeSlots + kMinNodeValues) / 2.0; - return node_type::LeafSize() / expected_values_per_node; - } - - // The fullness of the btree. Computed as the number of elements in the btree - // divided by the maximum number of elements a tree with the current number - // of nodes could hold. A value of 1 indicates perfect space - // utilization. Smaller values indicate space wastage. - // Returns 0 for empty trees. - double fullness() const { - if (empty()) return 0.0; - return static_cast(size()) / (nodes() * kNodeSlots); - } - // The overhead of the btree structure in bytes per node. Computed as the - // total number of bytes used by the btree minus the number of bytes used for - // storing elements divided by the number of elements. - // Returns 0 for empty trees. - double overhead() const { - if (empty()) return 0.0; - return (bytes_used() - size() * sizeof(value_type)) / - static_cast(size()); - } - - // The allocator used by the btree. - allocator_type get_allocator() const { return allocator(); } - - private: - friend struct btree_access; - - // Internal accessor routines. - node_type *root() { return root_; } - const node_type *root() const { return root_; } - node_type *&mutable_root() noexcept { return root_; } - node_type *rightmost() { return rightmost_.template get<2>(); } - const node_type *rightmost() const { return rightmost_.template get<2>(); } - node_type *&mutable_rightmost() noexcept { - return rightmost_.template get<2>(); - } - key_compare *mutable_key_comp() noexcept { - return &rightmost_.template get<0>(); - } - - // The leftmost node is stored as the parent of the root node. - node_type *leftmost() { return root()->parent(); } - const node_type *leftmost() const { return root()->parent(); } - - // Allocator routines. - allocator_type *mutable_allocator() noexcept { - return &rightmost_.template get<1>(); - } - const allocator_type &allocator() const noexcept { - return rightmost_.template get<1>(); - } - - // Allocates a correctly aligned node of at least size bytes using the - // allocator. - node_type *allocate(size_type size) { - return reinterpret_cast( - absl::container_internal::Allocate( - mutable_allocator(), size)); - } - - // Node creation/deletion routines. - node_type *new_internal_node(node_type *parent) { - node_type *n = allocate(node_type::InternalSize()); - n->init_internal(parent); - return n; - } - node_type *new_leaf_node(node_type *parent) { - node_type *n = allocate(node_type::LeafSize()); - n->init_leaf(kNodeSlots, parent); - return n; - } - node_type *new_leaf_root_node(field_type max_count) { - node_type *n = allocate(node_type::LeafSize(max_count)); - n->init_leaf(max_count, /*parent=*/n); - return n; - } - - // Deletion helper routines. - iterator rebalance_after_delete(iterator iter); - - // Rebalances or splits the node iter points to. - void rebalance_or_split(iterator *iter); - - // Merges the values of left, right and the delimiting key on their parent - // onto left, removing the delimiting key and deleting right. - void merge_nodes(node_type *left, node_type *right); - - // Tries to merge node with its left or right sibling, and failing that, - // rebalance with its left or right sibling. Returns true if a merge - // occurred, at which point it is no longer valid to access node. Returns - // false if no merging took place. - bool try_merge_or_rebalance(iterator *iter); - - // Tries to shrink the height of the tree by 1. - void try_shrink(); - - iterator internal_end(iterator iter) { - return iter.node_ != nullptr ? iter : end(); - } - const_iterator internal_end(const_iterator iter) const { - return iter.node_ != nullptr ? iter : end(); - } - - // Emplaces a value into the btree immediately before iter. Requires that - // key(v) <= iter.key() and (--iter).key() <= key(v). - template - iterator internal_emplace(iterator iter, Args &&...args); - - // Returns an iterator pointing to the first value >= the value "iter" is - // pointing at. Note that "iter" might be pointing to an invalid location such - // as iter.position_ == iter.node_->finish(). This routine simply moves iter - // up in the tree to a valid location. Requires: iter.node_ is non-null. - template - static IterType internal_last(IterType iter); - - // Returns an iterator pointing to the leaf position at which key would - // reside in the tree, unless there is an exact match - in which case, the - // result may not be on a leaf. When there's a three-way comparator, we can - // return whether there was an exact match. This allows the caller to avoid a - // subsequent comparison to determine if an exact match was made, which is - // important for keys with expensive comparison, such as strings. - template - SearchResult internal_locate( - const K &key) const; - - // Internal routine which implements lower_bound(). - template - SearchResult internal_lower_bound( - const K &key) const; - - // Internal routine which implements upper_bound(). - template - iterator internal_upper_bound(const K &key) const; - - // Internal routine which implements find(). - template - iterator internal_find(const K &key) const; - - // Verifies the tree structure of node. - size_type internal_verify(const node_type *node, const key_type *lo, - const key_type *hi) const; - - node_stats internal_stats(const node_type *node) const { - // The root can be a static empty node. - if (node == nullptr || (node == root() && empty())) { - return node_stats(0, 0); - } - if (node->is_leaf()) { - return node_stats(1, 0); - } - node_stats res(0, 1); - for (int i = node->start(); i <= node->finish(); ++i) { - res += internal_stats(node->child(i)); - } - return res; - } - - node_type *root_; - - // A pointer to the rightmost node. Note that the leftmost node is stored as - // the root's parent. We use compressed tuple in order to save space because - // key_compare and allocator_type are usually empty. - absl::container_internal::CompressedTuple - rightmost_; - - // Number of values. - size_type size_; -}; - -//// -// btree_node methods -template -template -inline void btree_node

::emplace_value(const field_type i, - allocator_type *alloc, - Args &&...args) { - assert(i >= start()); - assert(i <= finish()); - // Shift old values to create space for new value and then construct it in - // place. - if (i < finish()) { - transfer_n_backward(finish() - i, /*dest_i=*/i + 1, /*src_i=*/i, this, - alloc); - } - value_init(static_cast(i), alloc, std::forward(args)...); - set_finish(finish() + 1); - - if (is_internal() && finish() > i + 1) { - for (field_type j = finish(); j > i + 1; --j) { - set_child(j, child(j - 1)); - } - clear_child(i + 1); - } -} - -template -inline void btree_node

::remove_values(const field_type i, - const field_type to_erase, - allocator_type *alloc) { - // Transfer values after the removed range into their new places. - value_destroy_n(i, to_erase, alloc); - const field_type orig_finish = finish(); - const field_type src_i = i + to_erase; - transfer_n(orig_finish - src_i, i, src_i, this, alloc); - - if (is_internal()) { - // Delete all children between begin and end. - for (field_type j = 0; j < to_erase; ++j) { - clear_and_delete(child(i + j + 1), alloc); - } - // Rotate children after end into new positions. - for (field_type j = i + to_erase + 1; j <= orig_finish; ++j) { - set_child(j - to_erase, child(j)); - clear_child(j); - } - } - set_finish(orig_finish - to_erase); -} - -template -void btree_node

::rebalance_right_to_left(field_type to_move, - btree_node *right, - allocator_type *alloc) { - assert(parent() == right->parent()); - assert(position() + 1 == right->position()); - assert(right->count() >= count()); - assert(to_move >= 1); - assert(to_move <= right->count()); - - // 1) Move the delimiting value in the parent to the left node. - transfer(finish(), position(), parent(), alloc); - - // 2) Move the (to_move - 1) values from the right node to the left node. - transfer_n(to_move - 1, finish() + 1, right->start(), right, alloc); - - // 3) Move the new delimiting value to the parent from the right node. - parent()->transfer(position(), right->start() + to_move - 1, right, alloc); - - // 4) Shift the values in the right node to their correct positions. - right->transfer_n(right->count() - to_move, right->start(), - right->start() + to_move, right, alloc); - - if (is_internal()) { - // Move the child pointers from the right to the left node. - for (field_type i = 0; i < to_move; ++i) { - init_child(finish() + i + 1, right->child(i)); - } - for (field_type i = right->start(); i <= right->finish() - to_move; ++i) { - assert(i + to_move <= right->max_count()); - right->init_child(i, right->child(i + to_move)); - right->clear_child(i + to_move); - } - } - - // Fixup `finish` on the left and right nodes. - set_finish(finish() + to_move); - right->set_finish(right->finish() - to_move); -} - -template -void btree_node

::rebalance_left_to_right(field_type to_move, - btree_node *right, - allocator_type *alloc) { - assert(parent() == right->parent()); - assert(position() + 1 == right->position()); - assert(count() >= right->count()); - assert(to_move >= 1); - assert(to_move <= count()); - - // Values in the right node are shifted to the right to make room for the - // new to_move values. Then, the delimiting value in the parent and the - // other (to_move - 1) values in the left node are moved into the right node. - // Lastly, a new delimiting value is moved from the left node into the - // parent, and the remaining empty left node entries are destroyed. - - // 1) Shift existing values in the right node to their correct positions. - right->transfer_n_backward(right->count(), right->start() + to_move, - right->start(), right, alloc); - - // 2) Move the delimiting value in the parent to the right node. - right->transfer(right->start() + to_move - 1, position(), parent(), alloc); - - // 3) Move the (to_move - 1) values from the left node to the right node. - right->transfer_n(to_move - 1, right->start(), finish() - (to_move - 1), this, - alloc); - - // 4) Move the new delimiting value to the parent from the left node. - parent()->transfer(position(), finish() - to_move, this, alloc); - - if (is_internal()) { - // Move the child pointers from the left to the right node. - for (field_type i = right->finish() + 1; i > right->start(); --i) { - right->init_child(i - 1 + to_move, right->child(i - 1)); - right->clear_child(i - 1); - } - for (field_type i = 1; i <= to_move; ++i) { - right->init_child(i - 1, child(finish() - to_move + i)); - clear_child(finish() - to_move + i); - } - } - - // Fixup the counts on the left and right nodes. - set_finish(finish() - to_move); - right->set_finish(right->finish() + to_move); -} - -template -void btree_node

::split(const int insert_position, btree_node *dest, - allocator_type *alloc) { - assert(dest->count() == 0); - assert(max_count() == kNodeSlots); - - // We bias the split based on the position being inserted. If we're - // inserting at the beginning of the left node then bias the split to put - // more values on the right node. If we're inserting at the end of the - // right node then bias the split to put more values on the left node. - if (insert_position == start()) { - dest->set_finish(dest->start() + finish() - 1); - } else if (insert_position == kNodeSlots) { - dest->set_finish(dest->start()); - } else { - dest->set_finish(dest->start() + count() / 2); - } - set_finish(finish() - dest->count()); - assert(count() >= 1); - - // Move values from the left sibling to the right sibling. - dest->transfer_n(dest->count(), dest->start(), finish(), this, alloc); - - // The split key is the largest value in the left sibling. - --mutable_finish(); - parent()->emplace_value(position(), alloc, finish_slot()); - value_destroy(finish(), alloc); - parent()->init_child(position() + 1, dest); - - if (is_internal()) { - for (field_type i = dest->start(), j = finish() + 1; i <= dest->finish(); - ++i, ++j) { - assert(child(j) != nullptr); - dest->init_child(i, child(j)); - clear_child(j); - } - } -} - -template -void btree_node

::merge(btree_node *src, allocator_type *alloc) { - assert(parent() == src->parent()); - assert(position() + 1 == src->position()); - - // Move the delimiting value to the left node. - value_init(finish(), alloc, parent()->slot(position())); - - // Move the values from the right to the left node. - transfer_n(src->count(), finish() + 1, src->start(), src, alloc); - - if (is_internal()) { - // Move the child pointers from the right to the left node. - for (field_type i = src->start(), j = finish() + 1; i <= src->finish(); - ++i, ++j) { - init_child(j, src->child(i)); - src->clear_child(i); - } - } - - // Fixup `finish` on the src and dest nodes. - set_finish(start() + 1 + count() + src->count()); - src->set_finish(src->start()); - - // Remove the value on the parent node and delete the src node. - parent()->remove_values(position(), /*to_erase=*/1, alloc); -} - -template -void btree_node

::clear_and_delete(btree_node *node, allocator_type *alloc) { - if (node->is_leaf()) { - node->value_destroy_n(node->start(), node->count(), alloc); - deallocate(LeafSize(node->max_count()), node, alloc); - return; - } - if (node->count() == 0) { - deallocate(InternalSize(), node, alloc); - return; - } - - // The parent of the root of the subtree we are deleting. - btree_node *delete_root_parent = node->parent(); - - // Navigate to the leftmost leaf under node, and then delete upwards. - while (node->is_internal()) node = node->start_child(); -#ifdef ABSL_BTREE_ENABLE_GENERATIONS - // When generations are enabled, we delete the leftmost leaf last in case it's - // the parent of the root and we need to check whether it's a leaf before we - // can update the root's generation. - // TODO(ezb): if we change btree_node::is_root to check a bool inside the node - // instead of checking whether the parent is a leaf, we can remove this logic. - btree_node *leftmost_leaf = node; -#endif - // Use `size_type` because `pos` needs to be able to hold `kNodeSlots+1`, - // which isn't guaranteed to be a valid `field_type`. - size_type pos = node->position(); - btree_node *parent = node->parent(); - for (;;) { - // In each iteration of the next loop, we delete one leaf node and go right. - assert(pos <= parent->finish()); - do { - node = parent->child(static_cast(pos)); - if (node->is_internal()) { - // Navigate to the leftmost leaf under node. - while (node->is_internal()) node = node->start_child(); - pos = node->position(); - parent = node->parent(); - } - node->value_destroy_n(node->start(), node->count(), alloc); -#ifdef ABSL_BTREE_ENABLE_GENERATIONS - if (leftmost_leaf != node) -#endif - deallocate(LeafSize(node->max_count()), node, alloc); - ++pos; - } while (pos <= parent->finish()); - - // Once we've deleted all children of parent, delete parent and go up/right. - assert(pos > parent->finish()); - do { - node = parent; - pos = node->position(); - parent = node->parent(); - node->value_destroy_n(node->start(), node->count(), alloc); - deallocate(InternalSize(), node, alloc); - if (parent == delete_root_parent) { -#ifdef ABSL_BTREE_ENABLE_GENERATIONS - deallocate(LeafSize(leftmost_leaf->max_count()), leftmost_leaf, alloc); -#endif - return; - } - ++pos; - } while (pos > parent->finish()); - } -} - -//// -// btree_iterator methods - -// Note: the implementation here is based on btree_node::clear_and_delete. -template -auto btree_iterator::distance_slow(const_iterator other) const - -> difference_type { - const_iterator begin = other; - const_iterator end = *this; - assert(begin.node_ != end.node_ || !begin.node_->is_leaf() || - begin.position_ != end.position_); - - const node_type *node = begin.node_; - // We need to compensate for double counting if begin.node_ is a leaf node. - difference_type count = node->is_leaf() ? -begin.position_ : 0; - - // First navigate to the leftmost leaf node past begin. - if (node->is_internal()) { - ++count; - node = node->child(begin.position_ + 1); - } - while (node->is_internal()) node = node->start_child(); - - // Use `size_type` because `pos` needs to be able to hold `kNodeSlots+1`, - // which isn't guaranteed to be a valid `field_type`. - size_type pos = node->position(); - const node_type *parent = node->parent(); - for (;;) { - // In each iteration of the next loop, we count one leaf node and go right. - assert(pos <= parent->finish()); - do { - node = parent->child(static_cast(pos)); - if (node->is_internal()) { - // Navigate to the leftmost leaf under node. - while (node->is_internal()) node = node->start_child(); - pos = node->position(); - parent = node->parent(); - } - if (node == end.node_) return count + end.position_; - if (parent == end.node_ && pos == static_cast(end.position_)) - return count + node->count(); - // +1 is for the next internal node value. - count += node->count() + 1; - ++pos; - } while (pos <= parent->finish()); - - // Once we've counted all children of parent, go up/right. - assert(pos > parent->finish()); - do { - node = parent; - pos = node->position(); - parent = node->parent(); - // -1 because we counted the value at end and shouldn't. - if (parent == end.node_ && pos == static_cast(end.position_)) - return count - 1; - ++pos; - } while (pos > parent->finish()); - } -} - -template -void btree_iterator::increment_slow() { - if (node_->is_leaf()) { - assert(position_ >= node_->finish()); - btree_iterator save(*this); - while (position_ == node_->finish() && !node_->is_root()) { - assert(node_->parent()->child(node_->position()) == node_); - position_ = node_->position(); - node_ = node_->parent(); - } - // TODO(ezb): assert we aren't incrementing end() instead of handling. - if (position_ == node_->finish()) { - *this = save; - } - } else { - assert(position_ < node_->finish()); - node_ = node_->child(static_cast(position_ + 1)); - while (node_->is_internal()) { - node_ = node_->start_child(); - } - position_ = node_->start(); - } -} - -template -void btree_iterator::decrement_slow() { - if (node_->is_leaf()) { - assert(position_ <= -1); - btree_iterator save(*this); - while (position_ < node_->start() && !node_->is_root()) { - assert(node_->parent()->child(node_->position()) == node_); - position_ = node_->position() - 1; - node_ = node_->parent(); - } - // TODO(ezb): assert we aren't decrementing begin() instead of handling. - if (position_ < node_->start()) { - *this = save; - } - } else { - assert(position_ >= node_->start()); - node_ = node_->child(static_cast(position_)); - while (node_->is_internal()) { - node_ = node_->child(node_->finish()); - } - position_ = node_->finish() - 1; - } -} - -//// -// btree methods -template -template -void btree

::copy_or_move_values_in_order(Btree &other) { - static_assert(std::is_same::value || - std::is_same::value, - "Btree type must be same or const."); - assert(empty()); - - // We can avoid key comparisons because we know the order of the - // values is the same order we'll store them in. - auto iter = other.begin(); - if (iter == other.end()) return; - insert_multi(iter.slot()); - ++iter; - for (; iter != other.end(); ++iter) { - // If the btree is not empty, we can just insert the new value at the end - // of the tree. - internal_emplace(end(), iter.slot()); - } -} - -template -constexpr bool btree

::static_assert_validation() { - static_assert(std::is_nothrow_copy_constructible::value, - "Key comparison must be nothrow copy constructible"); - static_assert(std::is_nothrow_copy_constructible::value, - "Allocator must be nothrow copy constructible"); - static_assert(type_traits_internal::is_trivially_copyable::value, - "iterator not trivially copyable."); - - // Note: We assert that kTargetValues, which is computed from - // Params::kTargetNodeSize, must fit the node_type::field_type. - static_assert( - kNodeSlots < (1 << (8 * sizeof(typename node_type::field_type))), - "target node size too large"); - - // Verify that key_compare returns an absl::{weak,strong}_ordering or bool. - static_assert( - compare_has_valid_result_type(), - "key comparison function must return absl::{weak,strong}_ordering or " - "bool."); - - // Test the assumption made in setting kNodeSlotSpace. - static_assert(node_type::MinimumOverhead() >= sizeof(void *) + 4, - "node space assumption incorrect"); - - return true; -} - -template -template -auto btree

::lower_bound_equal(const K &key) const - -> std::pair { - const SearchResult res = - internal_lower_bound(key); - const iterator lower = iterator(internal_end(res.value)); - const bool equal = res.HasMatch() - ? res.IsEq() - : lower != end() && !compare_keys(key, lower.key()); - return {lower, equal}; -} - -template -template -auto btree

::equal_range(const K &key) -> std::pair { - const std::pair lower_and_equal = lower_bound_equal(key); - const iterator lower = lower_and_equal.first; - if (!lower_and_equal.second) { - return {lower, lower}; - } - - const iterator next = std::next(lower); - if (!params_type::template can_have_multiple_equivalent_keys()) { - // The next iterator after lower must point to a key greater than `key`. - // Note: if this assert fails, then it may indicate that the comparator does - // not meet the equivalence requirements for Compare - // (see https://en.cppreference.com/w/cpp/named_req/Compare). - assert(next == end() || compare_keys(key, next.key())); - return {lower, next}; - } - // Try once more to avoid the call to upper_bound() if there's only one - // equivalent key. This should prevent all calls to upper_bound() in cases of - // unique-containers with heterogeneous comparators in which all comparison - // operators have the same equivalence classes. - if (next == end() || compare_keys(key, next.key())) return {lower, next}; - - // In this case, we need to call upper_bound() to avoid worst case O(N) - // behavior if we were to iterate over equal keys. - return {lower, upper_bound(key)}; -} - -template -template -auto btree

::insert_unique(const K &key, Args &&...args) - -> std::pair { - if (empty()) { - mutable_root() = mutable_rightmost() = new_leaf_root_node(1); - } - - SearchResult res = internal_locate(key); - iterator iter = res.value; - - if (res.HasMatch()) { - if (res.IsEq()) { - // The key already exists in the tree, do nothing. - return {iter, false}; - } - } else { - iterator last = internal_last(iter); - if (last.node_ && !compare_keys(key, last.key())) { - // The key already exists in the tree, do nothing. - return {last, false}; - } - } - return {internal_emplace(iter, std::forward(args)...), true}; -} - -template -template -inline auto btree

::insert_hint_unique(iterator position, const K &key, - Args &&...args) - -> std::pair { - if (!empty()) { - if (position == end() || compare_keys(key, position.key())) { - if (position == begin() || compare_keys(std::prev(position).key(), key)) { - // prev.key() < key < position.key() - return {internal_emplace(position, std::forward(args)...), true}; - } - } else if (compare_keys(position.key(), key)) { - ++position; - if (position == end() || compare_keys(key, position.key())) { - // {original `position`}.key() < key < {current `position`}.key() - return {internal_emplace(position, std::forward(args)...), true}; - } - } else { - // position.key() == key - return {position, false}; - } - } - return insert_unique(key, std::forward(args)...); -} - -template -template -void btree

::insert_iterator_unique(InputIterator b, InputIterator e, int) { - for (; b != e; ++b) { - insert_hint_unique(end(), params_type::key(*b), *b); - } -} - -template -template -void btree

::insert_iterator_unique(InputIterator b, InputIterator e, char) { - for (; b != e; ++b) { - // Use a node handle to manage a temp slot. - auto node_handle = - CommonAccess::Construct(get_allocator(), *b); - slot_type *slot = CommonAccess::GetSlot(node_handle); - insert_hint_unique(end(), params_type::key(slot), slot); - } -} - -template -template -auto btree

::insert_multi(const key_type &key, ValueType &&v) -> iterator { - if (empty()) { - mutable_root() = mutable_rightmost() = new_leaf_root_node(1); - } - - iterator iter = internal_upper_bound(key); - if (iter.node_ == nullptr) { - iter = end(); - } - return internal_emplace(iter, std::forward(v)); -} - -template -template -auto btree

::insert_hint_multi(iterator position, ValueType &&v) -> iterator { - if (!empty()) { - const key_type &key = params_type::key(v); - if (position == end() || !compare_keys(position.key(), key)) { - if (position == begin() || - !compare_keys(key, std::prev(position).key())) { - // prev.key() <= key <= position.key() - return internal_emplace(position, std::forward(v)); - } - } else { - ++position; - if (position == end() || !compare_keys(position.key(), key)) { - // {original `position`}.key() < key < {current `position`}.key() - return internal_emplace(position, std::forward(v)); - } - } - } - return insert_multi(std::forward(v)); -} - -template -template -void btree

::insert_iterator_multi(InputIterator b, InputIterator e) { - for (; b != e; ++b) { - insert_hint_multi(end(), *b); - } -} - -template -auto btree

::operator=(const btree &other) -> btree & { - if (this != &other) { - clear(); - - *mutable_key_comp() = other.key_comp(); - if (absl::allocator_traits< - allocator_type>::propagate_on_container_copy_assignment::value) { - *mutable_allocator() = other.allocator(); - } - - copy_or_move_values_in_order(other); - } - return *this; -} - -template -auto btree

::operator=(btree &&other) noexcept -> btree & { - if (this != &other) { - clear(); - - using std::swap; - if (absl::allocator_traits< - allocator_type>::propagate_on_container_copy_assignment::value) { - swap(root_, other.root_); - // Note: `rightmost_` also contains the allocator and the key comparator. - swap(rightmost_, other.rightmost_); - swap(size_, other.size_); - } else { - if (allocator() == other.allocator()) { - swap(mutable_root(), other.mutable_root()); - swap(*mutable_key_comp(), *other.mutable_key_comp()); - swap(mutable_rightmost(), other.mutable_rightmost()); - swap(size_, other.size_); - } else { - // We aren't allowed to propagate the allocator and the allocator is - // different so we can't take over its memory. We must move each element - // individually. We need both `other` and `this` to have `other`s key - // comparator while moving the values so we can't swap the key - // comparators. - *mutable_key_comp() = other.key_comp(); - copy_or_move_values_in_order(other); - } - } - } - return *this; -} - -template -auto btree

::erase(iterator iter) -> iterator { - iter.node_->value_destroy(static_cast(iter.position_), - mutable_allocator()); - iter.update_generation(); - - const bool internal_delete = iter.node_->is_internal(); - if (internal_delete) { - // Deletion of a value on an internal node. First, transfer the largest - // value from our left child here, then erase/rebalance from that position. - // We can get to the largest value from our left child by decrementing iter. - iterator internal_iter(iter); - --iter; - assert(iter.node_->is_leaf()); - internal_iter.node_->transfer( - static_cast(internal_iter.position_), - static_cast(iter.position_), iter.node_, - mutable_allocator()); - } else { - // Shift values after erased position in leaf. In the internal case, we - // don't need to do this because the leaf position is the end of the node. - const field_type transfer_from = - static_cast(iter.position_ + 1); - const field_type num_to_transfer = iter.node_->finish() - transfer_from; - iter.node_->transfer_n(num_to_transfer, - static_cast(iter.position_), - transfer_from, iter.node_, mutable_allocator()); - } - // Update node finish and container size. - iter.node_->set_finish(iter.node_->finish() - 1); - --size_; - - // We want to return the next value after the one we just erased. If we - // erased from an internal node (internal_delete == true), then the next - // value is ++(++iter). If we erased from a leaf node (internal_delete == - // false) then the next value is ++iter. Note that ++iter may point to an - // internal node and the value in the internal node may move to a leaf node - // (iter.node_) when rebalancing is performed at the leaf level. - - iterator res = rebalance_after_delete(iter); - - // If we erased from an internal node, advance the iterator. - if (internal_delete) { - ++res; - } - return res; -} - -template -auto btree

::rebalance_after_delete(iterator iter) -> iterator { - // Merge/rebalance as we walk back up the tree. - iterator res(iter); - bool first_iteration = true; - for (;;) { - if (iter.node_ == root()) { - try_shrink(); - if (empty()) { - return end(); - } - break; - } - if (iter.node_->count() >= kMinNodeValues) { - break; - } - bool merged = try_merge_or_rebalance(&iter); - // On the first iteration, we should update `res` with `iter` because `res` - // may have been invalidated. - if (first_iteration) { - res = iter; - first_iteration = false; - } - if (!merged) { - break; - } - iter.position_ = iter.node_->position(); - iter.node_ = iter.node_->parent(); - } - res.update_generation(); - - // Adjust our return value. If we're pointing at the end of a node, advance - // the iterator. - if (res.position_ == res.node_->finish()) { - res.position_ = res.node_->finish() - 1; - ++res; - } - - return res; -} - -template -auto btree

::erase_range(iterator begin, iterator end) - -> std::pair { - size_type count = static_cast(end - begin); - assert(count >= 0); - - if (count == 0) { - return {0, begin}; - } - - if (static_cast(count) == size_) { - clear(); - return {count, this->end()}; - } - - if (begin.node_ == end.node_) { - assert(end.position_ > begin.position_); - begin.node_->remove_values( - static_cast(begin.position_), - static_cast(end.position_ - begin.position_), - mutable_allocator()); - size_ -= count; - return {count, rebalance_after_delete(begin)}; - } - - const size_type target_size = size_ - count; - while (size_ > target_size) { - if (begin.node_->is_leaf()) { - const size_type remaining_to_erase = size_ - target_size; - const size_type remaining_in_node = - static_cast(begin.node_->finish() - begin.position_); - const field_type to_erase = static_cast( - (std::min)(remaining_to_erase, remaining_in_node)); - begin.node_->remove_values(static_cast(begin.position_), - to_erase, mutable_allocator()); - size_ -= to_erase; - begin = rebalance_after_delete(begin); - } else { - begin = erase(begin); - } - } - begin.update_generation(); - return {count, begin}; -} - -template -void btree

::clear() { - if (!empty()) { - node_type::clear_and_delete(root(), mutable_allocator()); - } - mutable_root() = mutable_rightmost() = EmptyNode(); - size_ = 0; -} - -template -void btree

::swap(btree &other) { - using std::swap; - if (absl::allocator_traits< - allocator_type>::propagate_on_container_swap::value) { - // Note: `rightmost_` also contains the allocator and the key comparator. - swap(rightmost_, other.rightmost_); - } else { - // It's undefined behavior if the allocators are unequal here. - assert(allocator() == other.allocator()); - swap(mutable_rightmost(), other.mutable_rightmost()); - swap(*mutable_key_comp(), *other.mutable_key_comp()); - } - swap(mutable_root(), other.mutable_root()); - swap(size_, other.size_); -} - -template -void btree

::verify() const { - assert(root() != nullptr); - assert(leftmost() != nullptr); - assert(rightmost() != nullptr); - assert(empty() || size() == internal_verify(root(), nullptr, nullptr)); - assert(leftmost() == (++const_iterator(root(), -1)).node_); - assert(rightmost() == (--const_iterator(root(), root()->finish())).node_); - assert(leftmost()->is_leaf()); - assert(rightmost()->is_leaf()); -} - -template -void btree

::rebalance_or_split(iterator *iter) { - node_type *&node = iter->node_; - int &insert_position = iter->position_; - assert(node->count() == node->max_count()); - assert(kNodeSlots == node->max_count()); - - // First try to make room on the node by rebalancing. - node_type *parent = node->parent(); - if (node != root()) { - if (node->position() > parent->start()) { - // Try rebalancing with our left sibling. - node_type *left = parent->child(node->position() - 1); - assert(left->max_count() == kNodeSlots); - if (left->count() < kNodeSlots) { - // We bias rebalancing based on the position being inserted. If we're - // inserting at the end of the right node then we bias rebalancing to - // fill up the left node. - field_type to_move = - (kNodeSlots - left->count()) / - (1 + (static_cast(insert_position) < kNodeSlots)); - to_move = (std::max)(field_type{1}, to_move); - - if (static_cast(insert_position) - to_move >= - node->start() || - left->count() + to_move < kNodeSlots) { - left->rebalance_right_to_left(to_move, node, mutable_allocator()); - - assert(node->max_count() - node->count() == to_move); - insert_position = static_cast( - static_cast(insert_position) - to_move); - if (insert_position < node->start()) { - insert_position = insert_position + left->count() + 1; - node = left; - } - - assert(node->count() < node->max_count()); - return; - } - } - } - - if (node->position() < parent->finish()) { - // Try rebalancing with our right sibling. - node_type *right = parent->child(node->position() + 1); - assert(right->max_count() == kNodeSlots); - if (right->count() < kNodeSlots) { - // We bias rebalancing based on the position being inserted. If we're - // inserting at the beginning of the left node then we bias rebalancing - // to fill up the right node. - field_type to_move = (kNodeSlots - right->count()) / - (1 + (insert_position > node->start())); - to_move = (std::max)(field_type{1}, to_move); - - if (static_cast(insert_position) <= - node->finish() - to_move || - right->count() + to_move < kNodeSlots) { - node->rebalance_left_to_right(to_move, right, mutable_allocator()); - - if (insert_position > node->finish()) { - insert_position = insert_position - node->count() - 1; - node = right; - } - - assert(node->count() < node->max_count()); - return; - } - } - } - - // Rebalancing failed, make sure there is room on the parent node for a new - // value. - assert(parent->max_count() == kNodeSlots); - if (parent->count() == kNodeSlots) { - iterator parent_iter(node->parent(), node->position()); - rebalance_or_split(&parent_iter); - } - } else { - // Rebalancing not possible because this is the root node. - // Create a new root node and set the current root node as the child of the - // new root. - parent = new_internal_node(parent); - parent->set_generation(root()->generation()); - parent->init_child(parent->start(), root()); - mutable_root() = parent; - // If the former root was a leaf node, then it's now the rightmost node. - assert(parent->start_child()->is_internal() || - parent->start_child() == rightmost()); - } - - // Split the node. - node_type *split_node; - if (node->is_leaf()) { - split_node = new_leaf_node(parent); - node->split(insert_position, split_node, mutable_allocator()); - if (rightmost() == node) mutable_rightmost() = split_node; - } else { - split_node = new_internal_node(parent); - node->split(insert_position, split_node, mutable_allocator()); - } - - if (insert_position > node->finish()) { - insert_position = insert_position - node->count() - 1; - node = split_node; - } -} - -template -void btree

::merge_nodes(node_type *left, node_type *right) { - left->merge(right, mutable_allocator()); - if (rightmost() == right) mutable_rightmost() = left; -} - -template -bool btree

::try_merge_or_rebalance(iterator *iter) { - node_type *parent = iter->node_->parent(); - if (iter->node_->position() > parent->start()) { - // Try merging with our left sibling. - node_type *left = parent->child(iter->node_->position() - 1); - assert(left->max_count() == kNodeSlots); - if (1U + left->count() + iter->node_->count() <= kNodeSlots) { - iter->position_ += 1 + left->count(); - merge_nodes(left, iter->node_); - iter->node_ = left; - return true; - } - } - if (iter->node_->position() < parent->finish()) { - // Try merging with our right sibling. - node_type *right = parent->child(iter->node_->position() + 1); - assert(right->max_count() == kNodeSlots); - if (1U + iter->node_->count() + right->count() <= kNodeSlots) { - merge_nodes(iter->node_, right); - return true; - } - // Try rebalancing with our right sibling. We don't perform rebalancing if - // we deleted the first element from iter->node_ and the node is not - // empty. This is a small optimization for the common pattern of deleting - // from the front of the tree. - if (right->count() > kMinNodeValues && - (iter->node_->count() == 0 || iter->position_ > iter->node_->start())) { - field_type to_move = (right->count() - iter->node_->count()) / 2; - to_move = - (std::min)(to_move, static_cast(right->count() - 1)); - iter->node_->rebalance_right_to_left(to_move, right, mutable_allocator()); - return false; - } - } - if (iter->node_->position() > parent->start()) { - // Try rebalancing with our left sibling. We don't perform rebalancing if - // we deleted the last element from iter->node_ and the node is not - // empty. This is a small optimization for the common pattern of deleting - // from the back of the tree. - node_type *left = parent->child(iter->node_->position() - 1); - if (left->count() > kMinNodeValues && - (iter->node_->count() == 0 || - iter->position_ < iter->node_->finish())) { - field_type to_move = (left->count() - iter->node_->count()) / 2; - to_move = (std::min)(to_move, static_cast(left->count() - 1)); - left->rebalance_left_to_right(to_move, iter->node_, mutable_allocator()); - iter->position_ += to_move; - return false; - } - } - return false; -} - -template -void btree

::try_shrink() { - node_type *orig_root = root(); - if (orig_root->count() > 0) { - return; - } - // Deleted the last item on the root node, shrink the height of the tree. - if (orig_root->is_leaf()) { - assert(size() == 0); - mutable_root() = mutable_rightmost() = EmptyNode(); - } else { - node_type *child = orig_root->start_child(); - child->make_root(); - mutable_root() = child; - } - node_type::clear_and_delete(orig_root, mutable_allocator()); -} - -template -template -inline IterType btree

::internal_last(IterType iter) { - assert(iter.node_ != nullptr); - while (iter.position_ == iter.node_->finish()) { - iter.position_ = iter.node_->position(); - iter.node_ = iter.node_->parent(); - if (iter.node_->is_leaf()) { - iter.node_ = nullptr; - break; - } - } - iter.update_generation(); - return iter; -} - -template -template -inline auto btree

::internal_emplace(iterator iter, Args &&...args) - -> iterator { - if (iter.node_->is_internal()) { - // We can't insert on an internal node. Instead, we'll insert after the - // previous value which is guaranteed to be on a leaf node. - --iter; - ++iter.position_; - } - const field_type max_count = iter.node_->max_count(); - allocator_type *alloc = mutable_allocator(); - if (iter.node_->count() == max_count) { - // Make room in the leaf for the new item. - if (max_count < kNodeSlots) { - // Insertion into the root where the root is smaller than the full node - // size. Simply grow the size of the root node. - assert(iter.node_ == root()); - iter.node_ = new_leaf_root_node(static_cast( - (std::min)(static_cast(kNodeSlots), 2 * max_count))); - // Transfer the values from the old root to the new root. - node_type *old_root = root(); - node_type *new_root = iter.node_; - new_root->transfer_n(old_root->count(), new_root->start(), - old_root->start(), old_root, alloc); - new_root->set_finish(old_root->finish()); - old_root->set_finish(old_root->start()); - new_root->set_generation(old_root->generation()); - node_type::clear_and_delete(old_root, alloc); - mutable_root() = mutable_rightmost() = new_root; - } else { - rebalance_or_split(&iter); - } - } - iter.node_->emplace_value(static_cast(iter.position_), alloc, - std::forward(args)...); - ++size_; - iter.update_generation(); - return iter; -} - -template -template -inline auto btree

::internal_locate(const K &key) const - -> SearchResult { - iterator iter(const_cast(root())); - for (;;) { - SearchResult res = - iter.node_->lower_bound(key, key_comp()); - iter.position_ = static_cast(res.value); - if (res.IsEq()) { - return {iter, MatchKind::kEq}; - } - // Note: in the non-key-compare-to case, we don't need to walk all the way - // down the tree if the keys are equal, but determining equality would - // require doing an extra comparison on each node on the way down, and we - // will need to go all the way to the leaf node in the expected case. - if (iter.node_->is_leaf()) { - break; - } - iter.node_ = iter.node_->child(static_cast(iter.position_)); - } - // Note: in the non-key-compare-to case, the key may actually be equivalent - // here (and the MatchKind::kNe is ignored). - return {iter, MatchKind::kNe}; -} - -template -template -auto btree

::internal_lower_bound(const K &key) const - -> SearchResult { - if (!params_type::template can_have_multiple_equivalent_keys()) { - SearchResult ret = internal_locate(key); - ret.value = internal_last(ret.value); - return ret; - } - iterator iter(const_cast(root())); - SearchResult res; - bool seen_eq = false; - for (;;) { - res = iter.node_->lower_bound(key, key_comp()); - iter.position_ = static_cast(res.value); - if (iter.node_->is_leaf()) { - break; - } - seen_eq = seen_eq || res.IsEq(); - iter.node_ = iter.node_->child(static_cast(iter.position_)); - } - if (res.IsEq()) return {iter, MatchKind::kEq}; - return {internal_last(iter), seen_eq ? MatchKind::kEq : MatchKind::kNe}; -} - -template -template -auto btree

::internal_upper_bound(const K &key) const -> iterator { - iterator iter(const_cast(root())); - for (;;) { - iter.position_ = static_cast(iter.node_->upper_bound(key, key_comp())); - if (iter.node_->is_leaf()) { - break; - } - iter.node_ = iter.node_->child(static_cast(iter.position_)); - } - return internal_last(iter); -} - -template -template -auto btree

::internal_find(const K &key) const -> iterator { - SearchResult res = internal_locate(key); - if (res.HasMatch()) { - if (res.IsEq()) { - return res.value; - } - } else { - const iterator iter = internal_last(res.value); - if (iter.node_ != nullptr && !compare_keys(key, iter.key())) { - return iter; - } - } - return {nullptr, 0}; -} - -template -typename btree

::size_type btree

::internal_verify( - const node_type *node, const key_type *lo, const key_type *hi) const { - assert(node->count() > 0); - assert(node->count() <= node->max_count()); - if (lo) { - assert(!compare_keys(node->key(node->start()), *lo)); - } - if (hi) { - assert(!compare_keys(*hi, node->key(node->finish() - 1))); - } - for (int i = node->start() + 1; i < node->finish(); ++i) { - assert(!compare_keys(node->key(i), node->key(i - 1))); - } - size_type count = node->count(); - if (node->is_internal()) { - for (field_type i = node->start(); i <= node->finish(); ++i) { - assert(node->child(i) != nullptr); - assert(node->child(i)->parent() == node); - assert(node->child(i)->position() == i); - count += internal_verify(node->child(i), - i == node->start() ? lo : &node->key(i - 1), - i == node->finish() ? hi : &node->key(i)); - } - } - return count; -} - -struct btree_access { - template - static auto erase_if(BtreeContainer &container, Pred pred) -> - typename BtreeContainer::size_type { - const auto initial_size = container.size(); - auto &tree = container.tree_; - auto *alloc = tree.mutable_allocator(); - for (auto it = container.begin(); it != container.end();) { - if (!pred(*it)) { - ++it; - continue; - } - auto *node = it.node_; - if (node->is_internal()) { - // Handle internal nodes normally. - it = container.erase(it); - continue; - } - // If this is a leaf node, then we do all the erases from this node - // at once before doing rebalancing. - - // The current position to transfer slots to. - int to_pos = it.position_; - node->value_destroy(it.position_, alloc); - while (++it.position_ < node->finish()) { - it.update_generation(); - if (pred(*it)) { - node->value_destroy(it.position_, alloc); - } else { - node->transfer(node->slot(to_pos++), node->slot(it.position_), alloc); - } - } - const int num_deleted = node->finish() - to_pos; - tree.size_ -= num_deleted; - node->set_finish(to_pos); - it.position_ = to_pos; - it = tree.rebalance_after_delete(it); - } - return initial_size - container.size(); - } -}; - -#undef ABSL_BTREE_ENABLE_GENERATIONS - -} // namespace container_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_CONTAINER_INTERNAL_BTREE_H_ diff --git a/src/third_party/abseil-cpp/absl/container/internal/btree_container.h b/src/third_party/abseil-cpp/absl/container/internal/btree_container.h deleted file mode 100644 index 2bff11db04..0000000000 --- a/src/third_party/abseil-cpp/absl/container/internal/btree_container.h +++ /dev/null @@ -1,713 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#ifndef ABSL_CONTAINER_INTERNAL_BTREE_CONTAINER_H_ -#define ABSL_CONTAINER_INTERNAL_BTREE_CONTAINER_H_ - -#include -#include -#include -#include - -#include "absl/base/attributes.h" -#include "absl/base/internal/throw_delegate.h" -#include "absl/container/internal/btree.h" // IWYU pragma: export -#include "absl/container/internal/common.h" -#include "absl/memory/memory.h" -#include "absl/meta/type_traits.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace container_internal { - -// A common base class for btree_set, btree_map, btree_multiset, and -// btree_multimap. -template -class btree_container { - using params_type = typename Tree::params_type; - - protected: - // Alias used for heterogeneous lookup functions. - // `key_arg` evaluates to `K` when the functors are transparent and to - // `key_type` otherwise. It permits template argument deduction on `K` for the - // transparent case. - template - using key_arg = - typename KeyArg::template type< - K, typename Tree::key_type>; - - public: - using key_type = typename Tree::key_type; - using value_type = typename Tree::value_type; - using size_type = typename Tree::size_type; - using difference_type = typename Tree::difference_type; - using key_compare = typename Tree::original_key_compare; - using value_compare = typename Tree::value_compare; - using allocator_type = typename Tree::allocator_type; - using reference = typename Tree::reference; - using const_reference = typename Tree::const_reference; - using pointer = typename Tree::pointer; - using const_pointer = typename Tree::const_pointer; - using iterator = typename Tree::iterator; - using const_iterator = typename Tree::const_iterator; - using reverse_iterator = typename Tree::reverse_iterator; - using const_reverse_iterator = typename Tree::const_reverse_iterator; - using node_type = typename Tree::node_handle_type; - - struct extract_and_get_next_return_type { - node_type node; - iterator next; - }; - - // Constructors/assignments. - btree_container() : tree_(key_compare(), allocator_type()) {} - explicit btree_container(const key_compare &comp, - const allocator_type &alloc = allocator_type()) - : tree_(comp, alloc) {} - explicit btree_container(const allocator_type &alloc) - : tree_(key_compare(), alloc) {} - - btree_container(const btree_container &other) - : btree_container(other, absl::allocator_traits:: - select_on_container_copy_construction( - other.get_allocator())) {} - btree_container(const btree_container &other, const allocator_type &alloc) - : tree_(other.tree_, alloc) {} - - btree_container(btree_container &&other) noexcept( - std::is_nothrow_move_constructible::value) = default; - btree_container(btree_container &&other, const allocator_type &alloc) - : tree_(std::move(other.tree_), alloc) {} - - btree_container &operator=(const btree_container &other) = default; - btree_container &operator=(btree_container &&other) noexcept( - std::is_nothrow_move_assignable::value) = default; - - // Iterator routines. - iterator begin() { return tree_.begin(); } - const_iterator begin() const { return tree_.begin(); } - const_iterator cbegin() const { return tree_.begin(); } - iterator end() { return tree_.end(); } - const_iterator end() const { return tree_.end(); } - const_iterator cend() const { return tree_.end(); } - reverse_iterator rbegin() { return tree_.rbegin(); } - const_reverse_iterator rbegin() const { return tree_.rbegin(); } - const_reverse_iterator crbegin() const { return tree_.rbegin(); } - reverse_iterator rend() { return tree_.rend(); } - const_reverse_iterator rend() const { return tree_.rend(); } - const_reverse_iterator crend() const { return tree_.rend(); } - - // Lookup routines. - template - size_type count(const key_arg &key) const { - auto equal_range = this->equal_range(key); - return equal_range.second - equal_range.first; - } - template - iterator find(const key_arg &key) { - return tree_.find(key); - } - template - const_iterator find(const key_arg &key) const { - return tree_.find(key); - } - template - bool contains(const key_arg &key) const { - return find(key) != end(); - } - template - iterator lower_bound(const key_arg &key) { - return tree_.lower_bound(key); - } - template - const_iterator lower_bound(const key_arg &key) const { - return tree_.lower_bound(key); - } - template - iterator upper_bound(const key_arg &key) { - return tree_.upper_bound(key); - } - template - const_iterator upper_bound(const key_arg &key) const { - return tree_.upper_bound(key); - } - template - std::pair equal_range(const key_arg &key) { - return tree_.equal_range(key); - } - template - std::pair equal_range( - const key_arg &key) const { - return tree_.equal_range(key); - } - - // Deletion routines. Note that there is also a deletion routine that is - // specific to btree_set_container/btree_multiset_container. - - // Erase the specified iterator from the btree. The iterator must be valid - // (i.e. not equal to end()). Return an iterator pointing to the node after - // the one that was erased (or end() if none exists). - iterator erase(const_iterator iter) { return tree_.erase(iterator(iter)); } - iterator erase(iterator iter) { return tree_.erase(iter); } - iterator erase(const_iterator first, const_iterator last) { - return tree_.erase_range(iterator(first), iterator(last)).second; - } - template - size_type erase(const key_arg &key) { - auto equal_range = this->equal_range(key); - return tree_.erase_range(equal_range.first, equal_range.second).first; - } - - // Extract routines. - extract_and_get_next_return_type extract_and_get_next( - const_iterator position) { - // Use Construct instead of Transfer because the rebalancing code will - // destroy the slot later. - // Note: we rely on erase() taking place after Construct(). - return {CommonAccess::Construct(get_allocator(), - iterator(position).slot()), - erase(position)}; - } - node_type extract(iterator position) { - // Use Construct instead of Transfer because the rebalancing code will - // destroy the slot later. - auto node = - CommonAccess::Construct(get_allocator(), position.slot()); - erase(position); - return node; - } - node_type extract(const_iterator position) { - return extract(iterator(position)); - } - - // Utility routines. - ABSL_ATTRIBUTE_REINITIALIZES void clear() { tree_.clear(); } - void swap(btree_container &other) { tree_.swap(other.tree_); } - void verify() const { tree_.verify(); } - - // Size routines. - size_type size() const { return tree_.size(); } - size_type max_size() const { return tree_.max_size(); } - bool empty() const { return tree_.empty(); } - - friend bool operator==(const btree_container &x, const btree_container &y) { - if (x.size() != y.size()) return false; - return std::equal(x.begin(), x.end(), y.begin()); - } - - friend bool operator!=(const btree_container &x, const btree_container &y) { - return !(x == y); - } - - friend bool operator<(const btree_container &x, const btree_container &y) { - return std::lexicographical_compare(x.begin(), x.end(), y.begin(), y.end()); - } - - friend bool operator>(const btree_container &x, const btree_container &y) { - return y < x; - } - - friend bool operator<=(const btree_container &x, const btree_container &y) { - return !(y < x); - } - - friend bool operator>=(const btree_container &x, const btree_container &y) { - return !(x < y); - } - - // The allocator used by the btree. - allocator_type get_allocator() const { return tree_.get_allocator(); } - - // The key comparator used by the btree. - key_compare key_comp() const { return key_compare(tree_.key_comp()); } - value_compare value_comp() const { return tree_.value_comp(); } - - // Support absl::Hash. - template - friend State AbslHashValue(State h, const btree_container &b) { - for (const auto &v : b) { - h = State::combine(std::move(h), v); - } - return State::combine(std::move(h), b.size()); - } - - protected: - friend struct btree_access; - Tree tree_; -}; - -// A common base class for btree_set and btree_map. -template -class btree_set_container : public btree_container { - using super_type = btree_container; - using params_type = typename Tree::params_type; - using init_type = typename params_type::init_type; - using is_key_compare_to = typename params_type::is_key_compare_to; - friend class BtreeNodePeer; - - protected: - template - using key_arg = typename super_type::template key_arg; - - public: - using key_type = typename Tree::key_type; - using value_type = typename Tree::value_type; - using size_type = typename Tree::size_type; - using key_compare = typename Tree::original_key_compare; - using allocator_type = typename Tree::allocator_type; - using iterator = typename Tree::iterator; - using const_iterator = typename Tree::const_iterator; - using node_type = typename super_type::node_type; - using insert_return_type = InsertReturnType; - - // Inherit constructors. - using super_type::super_type; - btree_set_container() {} - - // Range constructors. - template - btree_set_container(InputIterator b, InputIterator e, - const key_compare &comp = key_compare(), - const allocator_type &alloc = allocator_type()) - : super_type(comp, alloc) { - insert(b, e); - } - template - btree_set_container(InputIterator b, InputIterator e, - const allocator_type &alloc) - : btree_set_container(b, e, key_compare(), alloc) {} - - // Initializer list constructors. - btree_set_container(std::initializer_list init, - const key_compare &comp = key_compare(), - const allocator_type &alloc = allocator_type()) - : btree_set_container(init.begin(), init.end(), comp, alloc) {} - btree_set_container(std::initializer_list init, - const allocator_type &alloc) - : btree_set_container(init.begin(), init.end(), alloc) {} - - // Insertion routines. - std::pair insert(const value_type &v) { - return this->tree_.insert_unique(params_type::key(v), v); - } - std::pair insert(value_type &&v) { - return this->tree_.insert_unique(params_type::key(v), std::move(v)); - } - template - std::pair emplace(Args &&... args) { - // Use a node handle to manage a temp slot. - auto node = CommonAccess::Construct(this->get_allocator(), - std::forward(args)...); - auto *slot = CommonAccess::GetSlot(node); - return this->tree_.insert_unique(params_type::key(slot), slot); - } - iterator insert(const_iterator hint, const value_type &v) { - return this->tree_ - .insert_hint_unique(iterator(hint), params_type::key(v), v) - .first; - } - iterator insert(const_iterator hint, value_type &&v) { - return this->tree_ - .insert_hint_unique(iterator(hint), params_type::key(v), std::move(v)) - .first; - } - template - iterator emplace_hint(const_iterator hint, Args &&... args) { - // Use a node handle to manage a temp slot. - auto node = CommonAccess::Construct(this->get_allocator(), - std::forward(args)...); - auto *slot = CommonAccess::GetSlot(node); - return this->tree_ - .insert_hint_unique(iterator(hint), params_type::key(slot), slot) - .first; - } - template - void insert(InputIterator b, InputIterator e) { - this->tree_.insert_iterator_unique(b, e, 0); - } - void insert(std::initializer_list init) { - this->tree_.insert_iterator_unique(init.begin(), init.end(), 0); - } - insert_return_type insert(node_type &&node) { - if (!node) return {this->end(), false, node_type()}; - std::pair res = - this->tree_.insert_unique(params_type::key(CommonAccess::GetSlot(node)), - CommonAccess::GetSlot(node)); - if (res.second) { - CommonAccess::Destroy(&node); - return {res.first, true, node_type()}; - } else { - return {res.first, false, std::move(node)}; - } - } - iterator insert(const_iterator hint, node_type &&node) { - if (!node) return this->end(); - std::pair res = this->tree_.insert_hint_unique( - iterator(hint), params_type::key(CommonAccess::GetSlot(node)), - CommonAccess::GetSlot(node)); - if (res.second) CommonAccess::Destroy(&node); - return res.first; - } - - // Node extraction routines. - template - node_type extract(const key_arg &key) { - const std::pair lower_and_equal = - this->tree_.lower_bound_equal(key); - return lower_and_equal.second ? extract(lower_and_equal.first) - : node_type(); - } - using super_type::extract; - - // Merge routines. - // Moves elements from `src` into `this`. If the element already exists in - // `this`, it is left unmodified in `src`. - template < - typename T, - typename absl::enable_if_t< - absl::conjunction< - std::is_same, - std::is_same, - std::is_same>::value, - int> = 0> - void merge(btree_container &src) { // NOLINT - for (auto src_it = src.begin(); src_it != src.end();) { - if (insert(std::move(params_type::element(src_it.slot()))).second) { - src_it = src.erase(src_it); - } else { - ++src_it; - } - } - } - - template < - typename T, - typename absl::enable_if_t< - absl::conjunction< - std::is_same, - std::is_same, - std::is_same>::value, - int> = 0> - void merge(btree_container &&src) { - merge(src); - } -}; - -// Base class for btree_map. -template -class btree_map_container : public btree_set_container { - using super_type = btree_set_container; - using params_type = typename Tree::params_type; - friend class BtreeNodePeer; - - private: - template - using key_arg = typename super_type::template key_arg; - - public: - using key_type = typename Tree::key_type; - using mapped_type = typename params_type::mapped_type; - using value_type = typename Tree::value_type; - using key_compare = typename Tree::original_key_compare; - using allocator_type = typename Tree::allocator_type; - using iterator = typename Tree::iterator; - using const_iterator = typename Tree::const_iterator; - - // Inherit constructors. - using super_type::super_type; - btree_map_container() {} - - // Insertion routines. - // Note: the nullptr template arguments and extra `const M&` overloads allow - // for supporting bitfield arguments. - template - std::pair insert_or_assign(const key_arg &k, - const M &obj) { - return insert_or_assign_impl(k, obj); - } - template - std::pair insert_or_assign(key_arg &&k, const M &obj) { - return insert_or_assign_impl(std::forward(k), obj); - } - template - std::pair insert_or_assign(const key_arg &k, M &&obj) { - return insert_or_assign_impl(k, std::forward(obj)); - } - template - std::pair insert_or_assign(key_arg &&k, M &&obj) { - return insert_or_assign_impl(std::forward(k), std::forward(obj)); - } - template - iterator insert_or_assign(const_iterator hint, const key_arg &k, - const M &obj) { - return insert_or_assign_hint_impl(hint, k, obj); - } - template - iterator insert_or_assign(const_iterator hint, key_arg &&k, const M &obj) { - return insert_or_assign_hint_impl(hint, std::forward(k), obj); - } - template - iterator insert_or_assign(const_iterator hint, const key_arg &k, M &&obj) { - return insert_or_assign_hint_impl(hint, k, std::forward(obj)); - } - template - iterator insert_or_assign(const_iterator hint, key_arg &&k, M &&obj) { - return insert_or_assign_hint_impl(hint, std::forward(k), - std::forward(obj)); - } - - template ::value, int> = 0> - std::pair try_emplace(const key_arg &k, Args &&... args) { - return try_emplace_impl(k, std::forward(args)...); - } - template ::value, int> = 0> - std::pair try_emplace(key_arg &&k, Args &&... args) { - return try_emplace_impl(std::forward(k), std::forward(args)...); - } - template - iterator try_emplace(const_iterator hint, const key_arg &k, - Args &&... args) { - return try_emplace_hint_impl(hint, k, std::forward(args)...); - } - template - iterator try_emplace(const_iterator hint, key_arg &&k, Args &&... args) { - return try_emplace_hint_impl(hint, std::forward(k), - std::forward(args)...); - } - - template - mapped_type &operator[](const key_arg &k) { - return try_emplace(k).first->second; - } - template - mapped_type &operator[](key_arg &&k) { - return try_emplace(std::forward(k)).first->second; - } - - template - mapped_type &at(const key_arg &key) { - auto it = this->find(key); - if (it == this->end()) - base_internal::ThrowStdOutOfRange("absl::btree_map::at"); - return it->second; - } - template - const mapped_type &at(const key_arg &key) const { - auto it = this->find(key); - if (it == this->end()) - base_internal::ThrowStdOutOfRange("absl::btree_map::at"); - return it->second; - } - - private: - // Note: when we call `std::forward(obj)` twice, it's safe because - // insert_unique/insert_hint_unique are guaranteed to not consume `obj` when - // `ret.second` is false. - template - std::pair insert_or_assign_impl(K &&k, M &&obj) { - const std::pair ret = - this->tree_.insert_unique(k, std::forward(k), std::forward(obj)); - if (!ret.second) ret.first->second = std::forward(obj); - return ret; - } - template - iterator insert_or_assign_hint_impl(const_iterator hint, K &&k, M &&obj) { - const std::pair ret = this->tree_.insert_hint_unique( - iterator(hint), k, std::forward(k), std::forward(obj)); - if (!ret.second) ret.first->second = std::forward(obj); - return ret.first; - } - - template - std::pair try_emplace_impl(K &&k, Args &&... args) { - return this->tree_.insert_unique( - k, std::piecewise_construct, std::forward_as_tuple(std::forward(k)), - std::forward_as_tuple(std::forward(args)...)); - } - template - iterator try_emplace_hint_impl(const_iterator hint, K &&k, Args &&... args) { - return this->tree_ - .insert_hint_unique(iterator(hint), k, std::piecewise_construct, - std::forward_as_tuple(std::forward(k)), - std::forward_as_tuple(std::forward(args)...)) - .first; - } -}; - -// A common base class for btree_multiset and btree_multimap. -template -class btree_multiset_container : public btree_container { - using super_type = btree_container; - using params_type = typename Tree::params_type; - using init_type = typename params_type::init_type; - using is_key_compare_to = typename params_type::is_key_compare_to; - friend class BtreeNodePeer; - - template - using key_arg = typename super_type::template key_arg; - - public: - using key_type = typename Tree::key_type; - using value_type = typename Tree::value_type; - using size_type = typename Tree::size_type; - using key_compare = typename Tree::original_key_compare; - using allocator_type = typename Tree::allocator_type; - using iterator = typename Tree::iterator; - using const_iterator = typename Tree::const_iterator; - using node_type = typename super_type::node_type; - - // Inherit constructors. - using super_type::super_type; - btree_multiset_container() {} - - // Range constructors. - template - btree_multiset_container(InputIterator b, InputIterator e, - const key_compare &comp = key_compare(), - const allocator_type &alloc = allocator_type()) - : super_type(comp, alloc) { - insert(b, e); - } - template - btree_multiset_container(InputIterator b, InputIterator e, - const allocator_type &alloc) - : btree_multiset_container(b, e, key_compare(), alloc) {} - - // Initializer list constructors. - btree_multiset_container(std::initializer_list init, - const key_compare &comp = key_compare(), - const allocator_type &alloc = allocator_type()) - : btree_multiset_container(init.begin(), init.end(), comp, alloc) {} - btree_multiset_container(std::initializer_list init, - const allocator_type &alloc) - : btree_multiset_container(init.begin(), init.end(), alloc) {} - - // Insertion routines. - iterator insert(const value_type &v) { return this->tree_.insert_multi(v); } - iterator insert(value_type &&v) { - return this->tree_.insert_multi(std::move(v)); - } - iterator insert(const_iterator hint, const value_type &v) { - return this->tree_.insert_hint_multi(iterator(hint), v); - } - iterator insert(const_iterator hint, value_type &&v) { - return this->tree_.insert_hint_multi(iterator(hint), std::move(v)); - } - template - void insert(InputIterator b, InputIterator e) { - this->tree_.insert_iterator_multi(b, e); - } - void insert(std::initializer_list init) { - this->tree_.insert_iterator_multi(init.begin(), init.end()); - } - template - iterator emplace(Args &&... args) { - // Use a node handle to manage a temp slot. - auto node = CommonAccess::Construct(this->get_allocator(), - std::forward(args)...); - return this->tree_.insert_multi(CommonAccess::GetSlot(node)); - } - template - iterator emplace_hint(const_iterator hint, Args &&... args) { - // Use a node handle to manage a temp slot. - auto node = CommonAccess::Construct(this->get_allocator(), - std::forward(args)...); - return this->tree_.insert_hint_multi(iterator(hint), - CommonAccess::GetSlot(node)); - } - iterator insert(node_type &&node) { - if (!node) return this->end(); - iterator res = - this->tree_.insert_multi(params_type::key(CommonAccess::GetSlot(node)), - CommonAccess::GetSlot(node)); - CommonAccess::Destroy(&node); - return res; - } - iterator insert(const_iterator hint, node_type &&node) { - if (!node) return this->end(); - iterator res = this->tree_.insert_hint_multi( - iterator(hint), - std::move(params_type::element(CommonAccess::GetSlot(node)))); - CommonAccess::Destroy(&node); - return res; - } - - // Node extraction routines. - template - node_type extract(const key_arg &key) { - const std::pair lower_and_equal = - this->tree_.lower_bound_equal(key); - return lower_and_equal.second ? extract(lower_and_equal.first) - : node_type(); - } - using super_type::extract; - - // Merge routines. - // Moves all elements from `src` into `this`. - template < - typename T, - typename absl::enable_if_t< - absl::conjunction< - std::is_same, - std::is_same, - std::is_same>::value, - int> = 0> - void merge(btree_container &src) { // NOLINT - for (auto src_it = src.begin(), end = src.end(); src_it != end; ++src_it) { - insert(std::move(params_type::element(src_it.slot()))); - } - src.clear(); - } - - template < - typename T, - typename absl::enable_if_t< - absl::conjunction< - std::is_same, - std::is_same, - std::is_same>::value, - int> = 0> - void merge(btree_container &&src) { - merge(src); - } -}; - -// A base class for btree_multimap. -template -class btree_multimap_container : public btree_multiset_container { - using super_type = btree_multiset_container; - using params_type = typename Tree::params_type; - friend class BtreeNodePeer; - - public: - using mapped_type = typename params_type::mapped_type; - - // Inherit constructors. - using super_type::super_type; - btree_multimap_container() {} -}; - -} // namespace container_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_CONTAINER_INTERNAL_BTREE_CONTAINER_H_ diff --git a/src/third_party/abseil-cpp/absl/container/internal/common.h b/src/third_party/abseil-cpp/absl/container/internal/common.h deleted file mode 100644 index 9239bb4d09..0000000000 --- a/src/third_party/abseil-cpp/absl/container/internal/common.h +++ /dev/null @@ -1,207 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#ifndef ABSL_CONTAINER_INTERNAL_COMMON_H_ -#define ABSL_CONTAINER_INTERNAL_COMMON_H_ - -#include -#include - -#include "absl/meta/type_traits.h" -#include "absl/types/optional.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace container_internal { - -template -struct IsTransparent : std::false_type {}; -template -struct IsTransparent> - : std::true_type {}; - -template -struct KeyArg { - // Transparent. Forward `K`. - template - using type = K; -}; - -template <> -struct KeyArg { - // Not transparent. Always use `key_type`. - template - using type = key_type; -}; - -// The node_handle concept from C++17. -// We specialize node_handle for sets and maps. node_handle_base holds the -// common API of both. -template -class node_handle_base { - protected: - using slot_type = typename PolicyTraits::slot_type; - - public: - using allocator_type = Alloc; - - constexpr node_handle_base() = default; - node_handle_base(node_handle_base&& other) noexcept { - *this = std::move(other); - } - ~node_handle_base() { destroy(); } - node_handle_base& operator=(node_handle_base&& other) noexcept { - destroy(); - if (!other.empty()) { - alloc_ = other.alloc_; - PolicyTraits::transfer(alloc(), slot(), other.slot()); - other.reset(); - } - return *this; - } - - bool empty() const noexcept { return !alloc_; } - explicit operator bool() const noexcept { return !empty(); } - allocator_type get_allocator() const { return *alloc_; } - - protected: - friend struct CommonAccess; - - struct transfer_tag_t {}; - node_handle_base(transfer_tag_t, const allocator_type& a, slot_type* s) - : alloc_(a) { - PolicyTraits::transfer(alloc(), slot(), s); - } - - struct construct_tag_t {}; - template - node_handle_base(construct_tag_t, const allocator_type& a, Args&&... args) - : alloc_(a) { - PolicyTraits::construct(alloc(), slot(), std::forward(args)...); - } - - void destroy() { - if (!empty()) { - PolicyTraits::destroy(alloc(), slot()); - reset(); - } - } - - void reset() { - assert(alloc_.has_value()); - alloc_ = absl::nullopt; - } - - slot_type* slot() const { - assert(!empty()); - return reinterpret_cast(std::addressof(slot_space_)); - } - allocator_type* alloc() { return std::addressof(*alloc_); } - - private: - absl::optional alloc_ = {}; - alignas(slot_type) mutable unsigned char slot_space_[sizeof(slot_type)] = {}; -}; - -// For sets. -template -class node_handle : public node_handle_base { - using Base = node_handle_base; - - public: - using value_type = typename PolicyTraits::value_type; - - constexpr node_handle() {} - - value_type& value() const { return PolicyTraits::element(this->slot()); } - - private: - friend struct CommonAccess; - - using Base::Base; -}; - -// For maps. -template -class node_handle> - : public node_handle_base { - using Base = node_handle_base; - using slot_type = typename PolicyTraits::slot_type; - - public: - using key_type = typename Policy::key_type; - using mapped_type = typename Policy::mapped_type; - - constexpr node_handle() {} - - // When C++17 is available, we can use std::launder to provide mutable - // access to the key. Otherwise, we provide const access. - auto key() const - -> decltype(PolicyTraits::mutable_key(std::declval())) { - return PolicyTraits::mutable_key(this->slot()); - } - - mapped_type& mapped() const { - return PolicyTraits::value(&PolicyTraits::element(this->slot())); - } - - private: - friend struct CommonAccess; - - using Base::Base; -}; - -// Provide access to non-public node-handle functions. -struct CommonAccess { - template - static auto GetSlot(const Node& node) -> decltype(node.slot()) { - return node.slot(); - } - - template - static void Destroy(Node* node) { - node->destroy(); - } - - template - static void Reset(Node* node) { - node->reset(); - } - - template - static T Transfer(Args&&... args) { - return T(typename T::transfer_tag_t{}, std::forward(args)...); - } - - template - static T Construct(Args&&... args) { - return T(typename T::construct_tag_t{}, std::forward(args)...); - } -}; - -// Implement the insert_return_type<> concept of C++17. -template -struct InsertReturnType { - Iterator position; - bool inserted; - NodeType node; -}; - -} // namespace container_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_CONTAINER_INTERNAL_COMMON_H_ diff --git a/src/third_party/abseil-cpp/absl/container/internal/common_policy_traits.h b/src/third_party/abseil-cpp/absl/container/internal/common_policy_traits.h deleted file mode 100644 index b42c9a482e..0000000000 --- a/src/third_party/abseil-cpp/absl/container/internal/common_policy_traits.h +++ /dev/null @@ -1,132 +0,0 @@ -// Copyright 2022 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#ifndef ABSL_CONTAINER_INTERNAL_COMMON_POLICY_TRAITS_H_ -#define ABSL_CONTAINER_INTERNAL_COMMON_POLICY_TRAITS_H_ - -#include -#include -#include -#include -#include -#include - -#include "absl/meta/type_traits.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace container_internal { - -// Defines how slots are initialized/destroyed/moved. -template -struct common_policy_traits { - // The actual object stored in the container. - using slot_type = typename Policy::slot_type; - using reference = decltype(Policy::element(std::declval())); - using value_type = typename std::remove_reference::type; - - // PRECONDITION: `slot` is UNINITIALIZED - // POSTCONDITION: `slot` is INITIALIZED - template - static void construct(Alloc* alloc, slot_type* slot, Args&&... args) { - Policy::construct(alloc, slot, std::forward(args)...); - } - - // PRECONDITION: `slot` is INITIALIZED - // POSTCONDITION: `slot` is UNINITIALIZED - template - static void destroy(Alloc* alloc, slot_type* slot) { - Policy::destroy(alloc, slot); - } - - // Transfers the `old_slot` to `new_slot`. Any memory allocated by the - // allocator inside `old_slot` to `new_slot` can be transferred. - // - // OPTIONAL: defaults to: - // - // clone(new_slot, std::move(*old_slot)); - // destroy(old_slot); - // - // PRECONDITION: `new_slot` is UNINITIALIZED and `old_slot` is INITIALIZED - // POSTCONDITION: `new_slot` is INITIALIZED and `old_slot` is - // UNINITIALIZED - template - static void transfer(Alloc* alloc, slot_type* new_slot, slot_type* old_slot) { - transfer_impl(alloc, new_slot, old_slot, Rank0{}); - } - - // PRECONDITION: `slot` is INITIALIZED - // POSTCONDITION: `slot` is INITIALIZED - // Note: we use remove_const_t so that the two overloads have different args - // in the case of sets with explicitly const value_types. - template - static auto element(absl::remove_const_t* slot) - -> decltype(P::element(slot)) { - return P::element(slot); - } - template - static auto element(const slot_type* slot) -> decltype(P::element(slot)) { - return P::element(slot); - } - - static constexpr bool transfer_uses_memcpy() { - return std::is_same>( - nullptr, nullptr, nullptr, Rank0{})), - std::true_type>::value; - } - - private: - // To rank the overloads below for overload resoltion. Rank0 is preferred. - struct Rank2 {}; - struct Rank1 : Rank2 {}; - struct Rank0 : Rank1 {}; - - // Use auto -> decltype as an enabler. - template - static auto transfer_impl(Alloc* alloc, slot_type* new_slot, - slot_type* old_slot, Rank0) - -> decltype((void)P::transfer(alloc, new_slot, old_slot)) { - P::transfer(alloc, new_slot, old_slot); - } -#if defined(__cpp_lib_launder) && __cpp_lib_launder >= 201606 - // This overload returns true_type for the trait below. - // The conditional_t is to make the enabler type dependent. - template >::value>> - static std::true_type transfer_impl(Alloc*, slot_type* new_slot, - slot_type* old_slot, Rank1) { - // TODO(b/247130232): remove casts after fixing warnings. - // TODO(b/251814870): remove casts after fixing warnings. - std::memcpy( - static_cast(std::launder( - const_cast*>(&element(new_slot)))), - static_cast(&element(old_slot)), sizeof(value_type)); - return {}; - } -#endif - - template - static void transfer_impl(Alloc* alloc, slot_type* new_slot, - slot_type* old_slot, Rank2) { - construct(alloc, new_slot, std::move(element(old_slot))); - destroy(alloc, old_slot); - } -}; - -} // namespace container_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_CONTAINER_INTERNAL_COMMON_POLICY_TRAITS_H_ diff --git a/src/third_party/abseil-cpp/absl/container/internal/common_policy_traits_test.cc b/src/third_party/abseil-cpp/absl/container/internal/common_policy_traits_test.cc deleted file mode 100644 index 5eaa4aae00..0000000000 --- a/src/third_party/abseil-cpp/absl/container/internal/common_policy_traits_test.cc +++ /dev/null @@ -1,120 +0,0 @@ -// Copyright 2022 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/container/internal/common_policy_traits.h" - -#include -#include -#include - -#include "gmock/gmock.h" -#include "gtest/gtest.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace container_internal { -namespace { - -using ::testing::MockFunction; -using ::testing::AnyNumber; -using ::testing::ReturnRef; - -using Slot = int; - -struct PolicyWithoutOptionalOps { - using slot_type = Slot; - using key_type = Slot; - using init_type = Slot; - - static std::function construct; - static std::function destroy; - - static std::function element; -}; - -std::function PolicyWithoutOptionalOps::construct; -std::function PolicyWithoutOptionalOps::destroy; - -std::function PolicyWithoutOptionalOps::element; - -struct PolicyWithOptionalOps : PolicyWithoutOptionalOps { - static std::function transfer; -}; - -std::function PolicyWithOptionalOps::transfer; - -struct Test : ::testing::Test { - Test() { - PolicyWithoutOptionalOps::construct = [&](void* a1, Slot* a2, Slot a3) { - construct.Call(a1, a2, std::move(a3)); - }; - PolicyWithoutOptionalOps::destroy = [&](void* a1, Slot* a2) { - destroy.Call(a1, a2); - }; - - PolicyWithoutOptionalOps::element = [&](Slot* a1) -> Slot& { - return element.Call(a1); - }; - - PolicyWithOptionalOps::transfer = [&](void* a1, Slot* a2, Slot* a3) { - return transfer.Call(a1, a2, a3); - }; - } - - std::allocator alloc; - int a = 53; - - MockFunction construct; - MockFunction destroy; - - MockFunction element; - - MockFunction transfer; -}; - -TEST_F(Test, construct) { - EXPECT_CALL(construct, Call(&alloc, &a, 53)); - common_policy_traits::construct(&alloc, &a, 53); -} - -TEST_F(Test, destroy) { - EXPECT_CALL(destroy, Call(&alloc, &a)); - common_policy_traits::destroy(&alloc, &a); -} - -TEST_F(Test, element) { - int b = 0; - EXPECT_CALL(element, Call(&a)).WillOnce(ReturnRef(b)); - EXPECT_EQ(&b, &common_policy_traits::element(&a)); -} - -TEST_F(Test, without_transfer) { - int b = 42; - EXPECT_CALL(element, Call(&a)).Times(AnyNumber()).WillOnce(ReturnRef(a)); - EXPECT_CALL(element, Call(&b)).WillOnce(ReturnRef(b)); - EXPECT_CALL(construct, Call(&alloc, &a, b)).Times(AnyNumber()); - EXPECT_CALL(destroy, Call(&alloc, &b)).Times(AnyNumber()); - common_policy_traits::transfer(&alloc, &a, &b); -} - -TEST_F(Test, with_transfer) { - int b = 42; - EXPECT_CALL(transfer, Call(&alloc, &a, &b)); - common_policy_traits::transfer(&alloc, &a, &b); -} - -} // namespace -} // namespace container_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/src/third_party/abseil-cpp/absl/container/internal/compressed_tuple.h b/src/third_party/abseil-cpp/absl/container/internal/compressed_tuple.h deleted file mode 100644 index 5ebe164942..0000000000 --- a/src/third_party/abseil-cpp/absl/container/internal/compressed_tuple.h +++ /dev/null @@ -1,290 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// Helper class to perform the Empty Base Optimization. -// Ts can contain classes and non-classes, empty or not. For the ones that -// are empty classes, we perform the optimization. If all types in Ts are empty -// classes, then CompressedTuple is itself an empty class. -// -// To access the members, use member get() function. -// -// Eg: -// absl::container_internal::CompressedTuple value(7, t1, t2, -// t3); -// assert(value.get<0>() == 7); -// T1& t1 = value.get<1>(); -// const T2& t2 = value.get<2>(); -// ... -// -// https://en.cppreference.com/w/cpp/language/ebo - -#ifndef ABSL_CONTAINER_INTERNAL_COMPRESSED_TUPLE_H_ -#define ABSL_CONTAINER_INTERNAL_COMPRESSED_TUPLE_H_ - -#include -#include -#include -#include - -#include "absl/utility/utility.h" - -#if defined(_MSC_VER) && !defined(__NVCC__) -// We need to mark these classes with this declspec to ensure that -// CompressedTuple happens. -#define ABSL_INTERNAL_COMPRESSED_TUPLE_DECLSPEC __declspec(empty_bases) -#else -#define ABSL_INTERNAL_COMPRESSED_TUPLE_DECLSPEC -#endif - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace container_internal { - -template -class CompressedTuple; - -namespace internal_compressed_tuple { - -template -struct Elem; -template -struct Elem, I> - : std::tuple_element> {}; -template -using ElemT = typename Elem::type; - -// Use the __is_final intrinsic if available. Where it's not available, classes -// declared with the 'final' specifier cannot be used as CompressedTuple -// elements. -// TODO(sbenza): Replace this with std::is_final in C++14. -template -constexpr bool IsFinal() { -#if defined(__clang__) || defined(__GNUC__) - return __is_final(T); -#else - return false; -#endif -} - -// We can't use EBCO on other CompressedTuples because that would mean that we -// derive from multiple Storage<> instantiations with the same I parameter, -// and potentially from multiple identical Storage<> instantiations. So anytime -// we use type inheritance rather than encapsulation, we mark -// CompressedTupleImpl, to make this easy to detect. -struct uses_inheritance {}; - -template -constexpr bool ShouldUseBase() { - return std::is_class::value && std::is_empty::value && !IsFinal() && - !std::is_base_of::value; -} - -// The storage class provides two specializations: -// - For empty classes, it stores T as a base class. -// - For everything else, it stores T as a member. -template ::type>()> -#else - bool UseBase = ShouldUseBase()> -#endif -struct Storage { - T value; - constexpr Storage() = default; - template - explicit constexpr Storage(absl::in_place_t, V&& v) - : value(absl::forward(v)) {} - constexpr const T& get() const& { return value; } - T& get() & { return value; } - constexpr const T&& get() const&& { return absl::move(*this).value; } - T&& get() && { return std::move(*this).value; } -}; - -template -struct ABSL_INTERNAL_COMPRESSED_TUPLE_DECLSPEC Storage : T { - constexpr Storage() = default; - - template - explicit constexpr Storage(absl::in_place_t, V&& v) - : T(absl::forward(v)) {} - - constexpr const T& get() const& { return *this; } - T& get() & { return *this; } - constexpr const T&& get() const&& { return absl::move(*this); } - T&& get() && { return std::move(*this); } -}; - -template -struct ABSL_INTERNAL_COMPRESSED_TUPLE_DECLSPEC CompressedTupleImpl; - -template -struct ABSL_INTERNAL_COMPRESSED_TUPLE_DECLSPEC CompressedTupleImpl< - CompressedTuple, absl::index_sequence, ShouldAnyUseBase> - // We use the dummy identity function through std::integral_constant to - // convince MSVC of accepting and expanding I in that context. Without it - // you would get: - // error C3548: 'I': parameter pack cannot be used in this context - : uses_inheritance, - Storage::value>... { - constexpr CompressedTupleImpl() = default; - template - explicit constexpr CompressedTupleImpl(absl::in_place_t, Vs&&... args) - : Storage(absl::in_place, absl::forward(args))... {} - friend CompressedTuple; -}; - -template -struct ABSL_INTERNAL_COMPRESSED_TUPLE_DECLSPEC CompressedTupleImpl< - CompressedTuple, absl::index_sequence, false> - // We use the dummy identity function as above... - : Storage::value, false>... { - constexpr CompressedTupleImpl() = default; - template - explicit constexpr CompressedTupleImpl(absl::in_place_t, Vs&&... args) - : Storage(absl::in_place, absl::forward(args))... {} - friend CompressedTuple; -}; - -std::false_type Or(std::initializer_list); -std::true_type Or(std::initializer_list); - -// MSVC requires this to be done separately rather than within the declaration -// of CompressedTuple below. -template -constexpr bool ShouldAnyUseBase() { - return decltype( - Or({std::integral_constant()>()...})){}; -} - -template -using TupleElementMoveConstructible = - typename std::conditional::value, - std::is_convertible, - std::is_constructible>::type; - -template -struct TupleMoveConstructible : std::false_type {}; - -template -struct TupleMoveConstructible, Vs...> - : std::integral_constant< - bool, absl::conjunction< - TupleElementMoveConstructible...>::value> {}; - -template -struct compressed_tuple_size; - -template -struct compressed_tuple_size> - : public std::integral_constant {}; - -template -struct TupleItemsMoveConstructible - : std::integral_constant< - bool, TupleMoveConstructible::value == - sizeof...(Vs), - T, Vs...>::value> {}; - -} // namespace internal_compressed_tuple - -// Helper class to perform the Empty Base Class Optimization. -// Ts can contain classes and non-classes, empty or not. For the ones that -// are empty classes, we perform the CompressedTuple. If all types in Ts are -// empty classes, then CompressedTuple is itself an empty class. (This -// does not apply when one or more of those empty classes is itself an empty -// CompressedTuple.) -// -// To access the members, use member .get() function. -// -// Eg: -// absl::container_internal::CompressedTuple value(7, t1, t2, -// t3); -// assert(value.get<0>() == 7); -// T1& t1 = value.get<1>(); -// const T2& t2 = value.get<2>(); -// ... -// -// https://en.cppreference.com/w/cpp/language/ebo -template -class ABSL_INTERNAL_COMPRESSED_TUPLE_DECLSPEC CompressedTuple - : private internal_compressed_tuple::CompressedTupleImpl< - CompressedTuple, absl::index_sequence_for, - internal_compressed_tuple::ShouldAnyUseBase()> { - private: - template - using ElemT = internal_compressed_tuple::ElemT; - - template - using StorageT = internal_compressed_tuple::Storage, I>; - - public: - // There seems to be a bug in MSVC dealing in which using '=default' here will - // cause the compiler to ignore the body of other constructors. The work- - // around is to explicitly implement the default constructor. -#if defined(_MSC_VER) - constexpr CompressedTuple() : CompressedTuple::CompressedTupleImpl() {} -#else - constexpr CompressedTuple() = default; -#endif - explicit constexpr CompressedTuple(const Ts&... base) - : CompressedTuple::CompressedTupleImpl(absl::in_place, base...) {} - - template )>>, - internal_compressed_tuple::TupleItemsMoveConstructible< - CompressedTuple, First, Vs...>>::value, - bool> = true> - explicit constexpr CompressedTuple(First&& first, Vs&&... base) - : CompressedTuple::CompressedTupleImpl(absl::in_place, - absl::forward(first), - absl::forward(base)...) {} - - template - ElemT& get() & { - return StorageT::get(); - } - - template - constexpr const ElemT& get() const& { - return StorageT::get(); - } - - template - ElemT&& get() && { - return std::move(*this).StorageT::get(); - } - - template - constexpr const ElemT&& get() const&& { - return absl::move(*this).StorageT::get(); - } -}; - -// Explicit specialization for a zero-element tuple -// (needed to avoid ambiguous overloads for the default constructor). -template <> -class ABSL_INTERNAL_COMPRESSED_TUPLE_DECLSPEC CompressedTuple<> {}; - -} // namespace container_internal -ABSL_NAMESPACE_END -} // namespace absl - -#undef ABSL_INTERNAL_COMPRESSED_TUPLE_DECLSPEC - -#endif // ABSL_CONTAINER_INTERNAL_COMPRESSED_TUPLE_H_ diff --git a/src/third_party/abseil-cpp/absl/container/internal/compressed_tuple_test.cc b/src/third_party/abseil-cpp/absl/container/internal/compressed_tuple_test.cc deleted file mode 100644 index 74111f975e..0000000000 --- a/src/third_party/abseil-cpp/absl/container/internal/compressed_tuple_test.cc +++ /dev/null @@ -1,419 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/container/internal/compressed_tuple.h" - -#include -#include - -#include "gmock/gmock.h" -#include "gtest/gtest.h" -#include "absl/container/internal/test_instance_tracker.h" -#include "absl/memory/memory.h" -#include "absl/types/any.h" -#include "absl/types/optional.h" -#include "absl/utility/utility.h" - -// These are declared at global scope purely so that error messages -// are smaller and easier to understand. -enum class CallType { kConstRef, kConstMove }; - -template -struct Empty { - constexpr CallType value() const& { return CallType::kConstRef; } - constexpr CallType value() const&& { return CallType::kConstMove; } -}; - -template -struct NotEmpty { - T value; -}; - -template -struct TwoValues { - T value1; - U value2; -}; - - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace container_internal { -namespace { - -using absl::test_internal::CopyableMovableInstance; -using absl::test_internal::InstanceTracker; - -TEST(CompressedTupleTest, Sizeof) { - EXPECT_EQ(sizeof(int), sizeof(CompressedTuple)); - EXPECT_EQ(sizeof(int), sizeof(CompressedTuple>)); - EXPECT_EQ(sizeof(int), sizeof(CompressedTuple, Empty<1>>)); - EXPECT_EQ(sizeof(int), - sizeof(CompressedTuple, Empty<1>, Empty<2>>)); - - EXPECT_EQ(sizeof(TwoValues), - sizeof(CompressedTuple>)); - EXPECT_EQ(sizeof(TwoValues), - sizeof(CompressedTuple, NotEmpty>)); - EXPECT_EQ(sizeof(TwoValues), - sizeof(CompressedTuple, NotEmpty, Empty<1>>)); -} - -TEST(CompressedTupleTest, OneMoveOnRValueConstructionTemp) { - InstanceTracker tracker; - CompressedTuple x1(CopyableMovableInstance(1)); - EXPECT_EQ(tracker.instances(), 1); - EXPECT_EQ(tracker.copies(), 0); - EXPECT_LE(tracker.moves(), 1); - EXPECT_EQ(x1.get<0>().value(), 1); -} - -TEST(CompressedTupleTest, OneMoveOnRValueConstructionMove) { - InstanceTracker tracker; - - CopyableMovableInstance i1(1); - CompressedTuple x1(std::move(i1)); - EXPECT_EQ(tracker.instances(), 2); - EXPECT_EQ(tracker.copies(), 0); - EXPECT_LE(tracker.moves(), 1); - EXPECT_EQ(x1.get<0>().value(), 1); -} - -TEST(CompressedTupleTest, OneMoveOnRValueConstructionMixedTypes) { - InstanceTracker tracker; - CopyableMovableInstance i1(1); - CopyableMovableInstance i2(2); - Empty<0> empty; - CompressedTuple> - x1(std::move(i1), i2, empty); - EXPECT_EQ(x1.get<0>().value(), 1); - EXPECT_EQ(x1.get<1>().value(), 2); - EXPECT_EQ(tracker.copies(), 0); - EXPECT_EQ(tracker.moves(), 1); -} - -struct IncompleteType; -CompressedTuple> -MakeWithIncomplete(CopyableMovableInstance i1, - IncompleteType& t, // NOLINT - Empty<0> empty) { - return CompressedTuple>{ - std::move(i1), t, empty}; -} - -struct IncompleteType {}; -TEST(CompressedTupleTest, OneMoveOnRValueConstructionWithIncompleteType) { - InstanceTracker tracker; - CopyableMovableInstance i1(1); - Empty<0> empty; - struct DerivedType : IncompleteType {int value = 0;}; - DerivedType fd; - fd.value = 7; - - CompressedTuple> x1 = - MakeWithIncomplete(std::move(i1), fd, empty); - - EXPECT_EQ(x1.get<0>().value(), 1); - EXPECT_EQ(static_cast(x1.get<1>()).value, 7); - - EXPECT_EQ(tracker.copies(), 0); - EXPECT_EQ(tracker.moves(), 2); -} - -TEST(CompressedTupleTest, - OneMoveOnRValueConstructionMixedTypes_BraceInitPoisonPillExpected) { - InstanceTracker tracker; - CopyableMovableInstance i1(1); - CopyableMovableInstance i2(2); - CompressedTuple> - x1(std::move(i1), i2, {}); // NOLINT - EXPECT_EQ(x1.get<0>().value(), 1); - EXPECT_EQ(x1.get<1>().value(), 2); - EXPECT_EQ(tracker.instances(), 3); - // We are forced into the `const Ts&...` constructor (invoking copies) - // because we need it to deduce the type of `{}`. - // std::tuple also has this behavior. - // Note, this test is proof that this is expected behavior, but it is not - // _desired_ behavior. - EXPECT_EQ(tracker.copies(), 1); - EXPECT_EQ(tracker.moves(), 0); -} - -TEST(CompressedTupleTest, OneCopyOnLValueConstruction) { - InstanceTracker tracker; - CopyableMovableInstance i1(1); - - CompressedTuple x1(i1); - EXPECT_EQ(tracker.copies(), 1); - EXPECT_EQ(tracker.moves(), 0); - - tracker.ResetCopiesMovesSwaps(); - - CopyableMovableInstance i2(2); - const CopyableMovableInstance& i2_ref = i2; - CompressedTuple x2(i2_ref); - EXPECT_EQ(tracker.copies(), 1); - EXPECT_EQ(tracker.moves(), 0); -} - -TEST(CompressedTupleTest, OneMoveOnRValueAccess) { - InstanceTracker tracker; - CopyableMovableInstance i1(1); - CompressedTuple x(std::move(i1)); - tracker.ResetCopiesMovesSwaps(); - - CopyableMovableInstance i2 = std::move(x).get<0>(); - EXPECT_EQ(tracker.copies(), 0); - EXPECT_EQ(tracker.moves(), 1); -} - -TEST(CompressedTupleTest, OneCopyOnLValueAccess) { - InstanceTracker tracker; - - CompressedTuple x(CopyableMovableInstance(0)); - EXPECT_EQ(tracker.copies(), 0); - EXPECT_EQ(tracker.moves(), 1); - - CopyableMovableInstance t = x.get<0>(); - EXPECT_EQ(tracker.copies(), 1); - EXPECT_EQ(tracker.moves(), 1); -} - -TEST(CompressedTupleTest, ZeroCopyOnRefAccess) { - InstanceTracker tracker; - - CompressedTuple x(CopyableMovableInstance(0)); - EXPECT_EQ(tracker.copies(), 0); - EXPECT_EQ(tracker.moves(), 1); - - CopyableMovableInstance& t1 = x.get<0>(); - const CopyableMovableInstance& t2 = x.get<0>(); - EXPECT_EQ(tracker.copies(), 0); - EXPECT_EQ(tracker.moves(), 1); - EXPECT_EQ(t1.value(), 0); - EXPECT_EQ(t2.value(), 0); -} - -TEST(CompressedTupleTest, Access) { - struct S { - std::string x; - }; - CompressedTuple, S> x(7, {}, S{"ABC"}); - EXPECT_EQ(sizeof(x), sizeof(TwoValues)); - EXPECT_EQ(7, x.get<0>()); - EXPECT_EQ("ABC", x.get<2>().x); -} - -TEST(CompressedTupleTest, NonClasses) { - CompressedTuple x(7, "ABC"); - EXPECT_EQ(7, x.get<0>()); - EXPECT_STREQ("ABC", x.get<1>()); -} - -TEST(CompressedTupleTest, MixClassAndNonClass) { - CompressedTuple, NotEmpty> x(7, "ABC", {}, - {1.25}); - struct Mock { - int v; - const char* p; - double d; - }; - EXPECT_EQ(sizeof(x), sizeof(Mock)); - EXPECT_EQ(7, x.get<0>()); - EXPECT_STREQ("ABC", x.get<1>()); - EXPECT_EQ(1.25, x.get<3>().value); -} - -TEST(CompressedTupleTest, Nested) { - CompressedTuple, - CompressedTuple>> - x(1, CompressedTuple(2), - CompressedTuple>(3, CompressedTuple(4))); - EXPECT_EQ(1, x.get<0>()); - EXPECT_EQ(2, x.get<1>().get<0>()); - EXPECT_EQ(3, x.get<2>().get<0>()); - EXPECT_EQ(4, x.get<2>().get<1>().get<0>()); - - CompressedTuple, Empty<0>, - CompressedTuple, CompressedTuple>>> - y; - std::set*> empties{&y.get<0>(), &y.get<1>(), &y.get<2>().get<0>(), - &y.get<2>().get<1>().get<0>()}; -#ifdef _MSC_VER - // MSVC has a bug where many instances of the same base class are layed out in - // the same address when using __declspec(empty_bases). - // This will be fixed in a future version of MSVC. - int expected = 1; -#else - int expected = 4; -#endif - EXPECT_EQ(expected, sizeof(y)); - EXPECT_EQ(expected, empties.size()); - EXPECT_EQ(sizeof(y), sizeof(Empty<0>) * empties.size()); - - EXPECT_EQ(4 * sizeof(char), - sizeof(CompressedTuple, - CompressedTuple>)); - EXPECT_TRUE((std::is_empty, Empty<1>>>::value)); - - // Make sure everything still works when things are nested. - struct CT_Empty : CompressedTuple> {}; - CompressedTuple, CT_Empty> nested_empty; - auto contained = nested_empty.get<0>(); - auto nested = nested_empty.get<1>().get<0>(); - EXPECT_TRUE((std::is_same::value)); -} - -TEST(CompressedTupleTest, Reference) { - int i = 7; - std::string s = "Very long string that goes in the heap"; - CompressedTuple x(i, i, s, s); - - // Sanity check. We should have not moved from `s` - EXPECT_EQ(s, "Very long string that goes in the heap"); - - EXPECT_EQ(x.get<0>(), x.get<1>()); - EXPECT_NE(&x.get<0>(), &x.get<1>()); - EXPECT_EQ(&x.get<1>(), &i); - - EXPECT_EQ(x.get<2>(), x.get<3>()); - EXPECT_NE(&x.get<2>(), &x.get<3>()); - EXPECT_EQ(&x.get<3>(), &s); -} - -TEST(CompressedTupleTest, NoElements) { - CompressedTuple<> x; - static_cast(x); // Silence -Wunused-variable. - EXPECT_TRUE(std::is_empty>::value); -} - -TEST(CompressedTupleTest, MoveOnlyElements) { - CompressedTuple> str_tup( - absl::make_unique("str")); - - CompressedTuple>, - std::unique_ptr> - x(std::move(str_tup), absl::make_unique(5)); - - EXPECT_EQ(*x.get<0>().get<0>(), "str"); - EXPECT_EQ(*x.get<1>(), 5); - - std::unique_ptr x0 = std::move(x.get<0>()).get<0>(); - std::unique_ptr x1 = std::move(x).get<1>(); - - EXPECT_EQ(*x0, "str"); - EXPECT_EQ(*x1, 5); -} - -TEST(CompressedTupleTest, MoveConstructionMoveOnlyElements) { - CompressedTuple> base( - absl::make_unique("str")); - EXPECT_EQ(*base.get<0>(), "str"); - - CompressedTuple> copy(std::move(base)); - EXPECT_EQ(*copy.get<0>(), "str"); -} - -TEST(CompressedTupleTest, AnyElements) { - any a(std::string("str")); - CompressedTuple x(any(5), a); - EXPECT_EQ(absl::any_cast(x.get<0>()), 5); - EXPECT_EQ(absl::any_cast(x.get<1>()), "str"); - - a = 0.5f; - EXPECT_EQ(absl::any_cast(x.get<1>()), 0.5); -} - -TEST(CompressedTupleTest, Constexpr) { - struct NonTrivialStruct { - constexpr NonTrivialStruct() = default; - constexpr int value() const { return v; } - int v = 5; - }; - struct TrivialStruct { - TrivialStruct() = default; - constexpr int value() const { return v; } - int v; - }; - constexpr CompressedTuple, Empty<0>> x( - 7, 1.25, CompressedTuple(5), {}); - constexpr int x0 = x.get<0>(); - constexpr double x1 = x.get<1>(); - constexpr int x2 = x.get<2>().get<0>(); - constexpr CallType x3 = x.get<3>().value(); - - EXPECT_EQ(x0, 7); - EXPECT_EQ(x1, 1.25); - EXPECT_EQ(x2, 5); - EXPECT_EQ(x3, CallType::kConstRef); - -#if !defined(__GNUC__) || defined(__clang__) || __GNUC__ > 4 - constexpr CompressedTuple, TrivialStruct, int> trivial = {}; - constexpr CallType trivial0 = trivial.get<0>().value(); - constexpr int trivial1 = trivial.get<1>().value(); - constexpr int trivial2 = trivial.get<2>(); - - EXPECT_EQ(trivial0, CallType::kConstRef); - EXPECT_EQ(trivial1, 0); - EXPECT_EQ(trivial2, 0); -#endif - - constexpr CompressedTuple, NonTrivialStruct, absl::optional> - non_trivial = {}; - constexpr CallType non_trivial0 = non_trivial.get<0>().value(); - constexpr int non_trivial1 = non_trivial.get<1>().value(); - constexpr absl::optional non_trivial2 = non_trivial.get<2>(); - - EXPECT_EQ(non_trivial0, CallType::kConstRef); - EXPECT_EQ(non_trivial1, 5); - EXPECT_EQ(non_trivial2, absl::nullopt); - - static constexpr char data[] = "DEF"; - constexpr CompressedTuple z(data); - constexpr const char* z1 = z.get<0>(); - EXPECT_EQ(std::string(z1), std::string(data)); - -#if defined(__clang__) - // An apparent bug in earlier versions of gcc claims these are ambiguous. - constexpr int x2m = absl::move(x.get<2>()).get<0>(); - constexpr CallType x3m = absl::move(x).get<3>().value(); - EXPECT_EQ(x2m, 5); - EXPECT_EQ(x3m, CallType::kConstMove); -#endif -} - -#if defined(__clang__) || defined(__GNUC__) -TEST(CompressedTupleTest, EmptyFinalClass) { - struct S final { - int f() const { return 5; } - }; - CompressedTuple x; - EXPECT_EQ(x.get<0>().f(), 5); -} -#endif - -// TODO(b/214288561): enable this test. -TEST(CompressedTupleTest, DISABLED_NestedEbo) { - struct Empty1 {}; - struct Empty2 {}; - CompressedTuple, int> x; - CompressedTuple y; - // Currently fails with sizeof(x) == 8, sizeof(y) == 4. - EXPECT_EQ(sizeof(x), sizeof(y)); -} - -} // namespace -} // namespace container_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/src/third_party/abseil-cpp/absl/container/internal/container_memory.h b/src/third_party/abseil-cpp/absl/container/internal/container_memory.h deleted file mode 100644 index bfa4ff93d7..0000000000 --- a/src/third_party/abseil-cpp/absl/container/internal/container_memory.h +++ /dev/null @@ -1,454 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#ifndef ABSL_CONTAINER_INTERNAL_CONTAINER_MEMORY_H_ -#define ABSL_CONTAINER_INTERNAL_CONTAINER_MEMORY_H_ - -#include -#include -#include -#include -#include -#include -#include -#include - -#include "absl/base/config.h" -#include "absl/memory/memory.h" -#include "absl/meta/type_traits.h" -#include "absl/utility/utility.h" - -#ifdef ABSL_HAVE_ADDRESS_SANITIZER -#include -#endif - -#ifdef ABSL_HAVE_MEMORY_SANITIZER -#include -#endif - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace container_internal { - -template -struct alignas(Alignment) AlignedType {}; - -// Allocates at least n bytes aligned to the specified alignment. -// Alignment must be a power of 2. It must be positive. -// -// Note that many allocators don't honor alignment requirements above certain -// threshold (usually either alignof(std::max_align_t) or alignof(void*)). -// Allocate() doesn't apply alignment corrections. If the underlying allocator -// returns insufficiently alignment pointer, that's what you are going to get. -template -void* Allocate(Alloc* alloc, size_t n) { - static_assert(Alignment > 0, ""); - assert(n && "n must be positive"); - using M = AlignedType; - using A = typename absl::allocator_traits::template rebind_alloc; - using AT = typename absl::allocator_traits::template rebind_traits; - // On macOS, "mem_alloc" is a #define with one argument defined in - // rpc/types.h, so we can't name the variable "mem_alloc" and initialize it - // with the "foo(bar)" syntax. - A my_mem_alloc(*alloc); - void* p = AT::allocate(my_mem_alloc, (n + sizeof(M) - 1) / sizeof(M)); - assert(reinterpret_cast(p) % Alignment == 0 && - "allocator does not respect alignment"); - return p; -} - -// The pointer must have been previously obtained by calling -// Allocate(alloc, n). -template -void Deallocate(Alloc* alloc, void* p, size_t n) { - static_assert(Alignment > 0, ""); - assert(n && "n must be positive"); - using M = AlignedType; - using A = typename absl::allocator_traits::template rebind_alloc; - using AT = typename absl::allocator_traits::template rebind_traits; - // On macOS, "mem_alloc" is a #define with one argument defined in - // rpc/types.h, so we can't name the variable "mem_alloc" and initialize it - // with the "foo(bar)" syntax. - A my_mem_alloc(*alloc); - AT::deallocate(my_mem_alloc, static_cast(p), - (n + sizeof(M) - 1) / sizeof(M)); -} - -namespace memory_internal { - -// Constructs T into uninitialized storage pointed by `ptr` using the args -// specified in the tuple. -template -void ConstructFromTupleImpl(Alloc* alloc, T* ptr, Tuple&& t, - absl::index_sequence) { - absl::allocator_traits::construct( - *alloc, ptr, std::get(std::forward(t))...); -} - -template -struct WithConstructedImplF { - template - decltype(std::declval()(std::declval())) operator()( - Args&&... args) const { - return std::forward(f)(T(std::forward(args)...)); - } - F&& f; -}; - -template -decltype(std::declval()(std::declval())) WithConstructedImpl( - Tuple&& t, absl::index_sequence, F&& f) { - return WithConstructedImplF{std::forward(f)}( - std::get(std::forward(t))...); -} - -template -auto TupleRefImpl(T&& t, absl::index_sequence) - -> decltype(std::forward_as_tuple(std::get(std::forward(t))...)) { - return std::forward_as_tuple(std::get(std::forward(t))...); -} - -// Returns a tuple of references to the elements of the input tuple. T must be a -// tuple. -template -auto TupleRef(T&& t) -> decltype( - TupleRefImpl(std::forward(t), - absl::make_index_sequence< - std::tuple_size::type>::value>())) { - return TupleRefImpl( - std::forward(t), - absl::make_index_sequence< - std::tuple_size::type>::value>()); -} - -template -decltype(std::declval()(std::declval(), std::piecewise_construct, - std::declval>(), std::declval())) -DecomposePairImpl(F&& f, std::pair, V> p) { - const auto& key = std::get<0>(p.first); - return std::forward(f)(key, std::piecewise_construct, std::move(p.first), - std::move(p.second)); -} - -} // namespace memory_internal - -// Constructs T into uninitialized storage pointed by `ptr` using the args -// specified in the tuple. -template -void ConstructFromTuple(Alloc* alloc, T* ptr, Tuple&& t) { - memory_internal::ConstructFromTupleImpl( - alloc, ptr, std::forward(t), - absl::make_index_sequence< - std::tuple_size::type>::value>()); -} - -// Constructs T using the args specified in the tuple and calls F with the -// constructed value. -template -decltype(std::declval()(std::declval())) WithConstructed( - Tuple&& t, F&& f) { - return memory_internal::WithConstructedImpl( - std::forward(t), - absl::make_index_sequence< - std::tuple_size::type>::value>(), - std::forward(f)); -} - -// Given arguments of an std::pair's consructor, PairArgs() returns a pair of -// tuples with references to the passed arguments. The tuples contain -// constructor arguments for the first and the second elements of the pair. -// -// The following two snippets are equivalent. -// -// 1. std::pair p(args...); -// -// 2. auto a = PairArgs(args...); -// std::pair p(std::piecewise_construct, -// std::move(a.first), std::move(a.second)); -inline std::pair, std::tuple<>> PairArgs() { return {}; } -template -std::pair, std::tuple> PairArgs(F&& f, S&& s) { - return {std::piecewise_construct, std::forward_as_tuple(std::forward(f)), - std::forward_as_tuple(std::forward(s))}; -} -template -std::pair, std::tuple> PairArgs( - const std::pair& p) { - return PairArgs(p.first, p.second); -} -template -std::pair, std::tuple> PairArgs(std::pair&& p) { - return PairArgs(std::forward(p.first), std::forward(p.second)); -} -template -auto PairArgs(std::piecewise_construct_t, F&& f, S&& s) - -> decltype(std::make_pair(memory_internal::TupleRef(std::forward(f)), - memory_internal::TupleRef(std::forward(s)))) { - return std::make_pair(memory_internal::TupleRef(std::forward(f)), - memory_internal::TupleRef(std::forward(s))); -} - -// A helper function for implementing apply() in map policies. -template -auto DecomposePair(F&& f, Args&&... args) - -> decltype(memory_internal::DecomposePairImpl( - std::forward(f), PairArgs(std::forward(args)...))) { - return memory_internal::DecomposePairImpl( - std::forward(f), PairArgs(std::forward(args)...)); -} - -// A helper function for implementing apply() in set policies. -template -decltype(std::declval()(std::declval(), std::declval())) -DecomposeValue(F&& f, Arg&& arg) { - const auto& key = arg; - return std::forward(f)(key, std::forward(arg)); -} - -// Helper functions for asan and msan. -inline void SanitizerPoisonMemoryRegion(const void* m, size_t s) { -#ifdef ABSL_HAVE_ADDRESS_SANITIZER - ASAN_POISON_MEMORY_REGION(m, s); -#endif -#ifdef ABSL_HAVE_MEMORY_SANITIZER - __msan_poison(m, s); -#endif - (void)m; - (void)s; -} - -inline void SanitizerUnpoisonMemoryRegion(const void* m, size_t s) { -#ifdef ABSL_HAVE_ADDRESS_SANITIZER - ASAN_UNPOISON_MEMORY_REGION(m, s); -#endif -#ifdef ABSL_HAVE_MEMORY_SANITIZER - __msan_unpoison(m, s); -#endif - (void)m; - (void)s; -} - -template -inline void SanitizerPoisonObject(const T* object) { - SanitizerPoisonMemoryRegion(object, sizeof(T)); -} - -template -inline void SanitizerUnpoisonObject(const T* object) { - SanitizerUnpoisonMemoryRegion(object, sizeof(T)); -} - -namespace memory_internal { - -// If Pair is a standard-layout type, OffsetOf::kFirst and -// OffsetOf::kSecond are equivalent to offsetof(Pair, first) and -// offsetof(Pair, second) respectively. Otherwise they are -1. -// -// The purpose of OffsetOf is to avoid calling offsetof() on non-standard-layout -// type, which is non-portable. -template -struct OffsetOf { - static constexpr size_t kFirst = static_cast(-1); - static constexpr size_t kSecond = static_cast(-1); -}; - -template -struct OffsetOf::type> { - static constexpr size_t kFirst = offsetof(Pair, first); - static constexpr size_t kSecond = offsetof(Pair, second); -}; - -template -struct IsLayoutCompatible { - private: - struct Pair { - K first; - V second; - }; - - // Is P layout-compatible with Pair? - template - static constexpr bool LayoutCompatible() { - return std::is_standard_layout

() && sizeof(P) == sizeof(Pair) && - alignof(P) == alignof(Pair) && - memory_internal::OffsetOf

::kFirst == - memory_internal::OffsetOf::kFirst && - memory_internal::OffsetOf

::kSecond == - memory_internal::OffsetOf::kSecond; - } - - public: - // Whether pair and pair are layout-compatible. If they are, - // then it is safe to store them in a union and read from either. - static constexpr bool value = std::is_standard_layout() && - std::is_standard_layout() && - memory_internal::OffsetOf::kFirst == 0 && - LayoutCompatible>() && - LayoutCompatible>(); -}; - -} // namespace memory_internal - -// The internal storage type for key-value containers like flat_hash_map. -// -// It is convenient for the value_type of a flat_hash_map to be -// pair; the "const K" prevents accidental modification of the key -// when dealing with the reference returned from find() and similar methods. -// However, this creates other problems; we want to be able to emplace(K, V) -// efficiently with move operations, and similarly be able to move a -// pair in insert(). -// -// The solution is this union, which aliases the const and non-const versions -// of the pair. This also allows flat_hash_map to work, even though -// that has the same efficiency issues with move in emplace() and insert() - -// but people do it anyway. -// -// If kMutableKeys is false, only the value member can be accessed. -// -// If kMutableKeys is true, key can be accessed through all slots while value -// and mutable_value must be accessed only via INITIALIZED slots. Slots are -// created and destroyed via mutable_value so that the key can be moved later. -// -// Accessing one of the union fields while the other is active is safe as -// long as they are layout-compatible, which is guaranteed by the definition of -// kMutableKeys. For C++11, the relevant section of the standard is -// https://timsong-cpp.github.io/cppwp/n3337/class.mem#19 (9.2.19) -template -union map_slot_type { - map_slot_type() {} - ~map_slot_type() = delete; - using value_type = std::pair; - using mutable_value_type = - std::pair, absl::remove_const_t>; - - value_type value; - mutable_value_type mutable_value; - absl::remove_const_t key; -}; - -template -struct map_slot_policy { - using slot_type = map_slot_type; - using value_type = std::pair; - using mutable_value_type = - std::pair, absl::remove_const_t>; - - private: - static void emplace(slot_type* slot) { - // The construction of union doesn't do anything at runtime but it allows us - // to access its members without violating aliasing rules. - new (slot) slot_type; - } - // If pair and pair are layout-compatible, we can accept one - // or the other via slot_type. We are also free to access the key via - // slot_type::key in this case. - using kMutableKeys = memory_internal::IsLayoutCompatible; - - public: - static value_type& element(slot_type* slot) { return slot->value; } - static const value_type& element(const slot_type* slot) { - return slot->value; - } - - // When C++17 is available, we can use std::launder to provide mutable - // access to the key for use in node handle. -#if defined(__cpp_lib_launder) && __cpp_lib_launder >= 201606 - static K& mutable_key(slot_type* slot) { - // Still check for kMutableKeys so that we can avoid calling std::launder - // unless necessary because it can interfere with optimizations. - return kMutableKeys::value ? slot->key - : *std::launder(const_cast( - std::addressof(slot->value.first))); - } -#else // !(defined(__cpp_lib_launder) && __cpp_lib_launder >= 201606) - static const K& mutable_key(slot_type* slot) { return key(slot); } -#endif - - static const K& key(const slot_type* slot) { - return kMutableKeys::value ? slot->key : slot->value.first; - } - - template - static void construct(Allocator* alloc, slot_type* slot, Args&&... args) { - emplace(slot); - if (kMutableKeys::value) { - absl::allocator_traits::construct(*alloc, &slot->mutable_value, - std::forward(args)...); - } else { - absl::allocator_traits::construct(*alloc, &slot->value, - std::forward(args)...); - } - } - - // Construct this slot by moving from another slot. - template - static void construct(Allocator* alloc, slot_type* slot, slot_type* other) { - emplace(slot); - if (kMutableKeys::value) { - absl::allocator_traits::construct( - *alloc, &slot->mutable_value, std::move(other->mutable_value)); - } else { - absl::allocator_traits::construct(*alloc, &slot->value, - std::move(other->value)); - } - } - - // Construct this slot by copying from another slot. - template - static void construct(Allocator* alloc, slot_type* slot, - const slot_type* other) { - emplace(slot); - absl::allocator_traits::construct(*alloc, &slot->value, - other->value); - } - - template - static void destroy(Allocator* alloc, slot_type* slot) { - if (kMutableKeys::value) { - absl::allocator_traits::destroy(*alloc, &slot->mutable_value); - } else { - absl::allocator_traits::destroy(*alloc, &slot->value); - } - } - - template - static void transfer(Allocator* alloc, slot_type* new_slot, - slot_type* old_slot) { - emplace(new_slot); -#if defined(__cpp_lib_launder) && __cpp_lib_launder >= 201606 - if (absl::is_trivially_relocatable()) { - // TODO(b/247130232,b/251814870): remove casts after fixing warnings. - std::memcpy(static_cast(std::launder(&new_slot->value)), - static_cast(&old_slot->value), - sizeof(value_type)); - return; - } -#endif - - if (kMutableKeys::value) { - absl::allocator_traits::construct( - *alloc, &new_slot->mutable_value, std::move(old_slot->mutable_value)); - } else { - absl::allocator_traits::construct(*alloc, &new_slot->value, - std::move(old_slot->value)); - } - destroy(alloc, old_slot); - } -}; - -} // namespace container_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_CONTAINER_INTERNAL_CONTAINER_MEMORY_H_ diff --git a/src/third_party/abseil-cpp/absl/container/internal/container_memory_test.cc b/src/third_party/abseil-cpp/absl/container/internal/container_memory_test.cc deleted file mode 100644 index fb9c4ddede..0000000000 --- a/src/third_party/abseil-cpp/absl/container/internal/container_memory_test.cc +++ /dev/null @@ -1,257 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/container/internal/container_memory.h" - -#include -#include -#include -#include -#include - -#include "gmock/gmock.h" -#include "gtest/gtest.h" -#include "absl/container/internal/test_instance_tracker.h" -#include "absl/strings/string_view.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace container_internal { -namespace { - -using ::absl::test_internal::CopyableMovableInstance; -using ::absl::test_internal::InstanceTracker; -using ::testing::_; -using ::testing::ElementsAre; -using ::testing::Gt; -using ::testing::Pair; - -TEST(Memory, AlignmentLargerThanBase) { - std::allocator alloc; - void* mem = Allocate<2>(&alloc, 3); - EXPECT_EQ(0, reinterpret_cast(mem) % 2); - memcpy(mem, "abc", 3); - Deallocate<2>(&alloc, mem, 3); -} - -TEST(Memory, AlignmentSmallerThanBase) { - std::allocator alloc; - void* mem = Allocate<2>(&alloc, 3); - EXPECT_EQ(0, reinterpret_cast(mem) % 2); - memcpy(mem, "abc", 3); - Deallocate<2>(&alloc, mem, 3); -} - -std::map& AllocationMap() { - static auto* map = new std::map; - return *map; -} - -template -struct TypeCountingAllocator { - TypeCountingAllocator() = default; - template - TypeCountingAllocator(const TypeCountingAllocator&) {} // NOLINT - - using value_type = T; - - T* allocate(size_t n, const void* = nullptr) { - AllocationMap()[typeid(T)] += n; - return std::allocator().allocate(n); - } - void deallocate(T* p, std::size_t n) { - AllocationMap()[typeid(T)] -= n; - return std::allocator().deallocate(p, n); - } -}; - -TEST(Memory, AllocateDeallocateMatchType) { - TypeCountingAllocator alloc; - void* mem = Allocate<1>(&alloc, 1); - // Verify that it was allocated - EXPECT_THAT(AllocationMap(), ElementsAre(Pair(_, Gt(0)))); - Deallocate<1>(&alloc, mem, 1); - // Verify that the deallocation matched. - EXPECT_THAT(AllocationMap(), ElementsAre(Pair(_, 0))); -} - -class Fixture : public ::testing::Test { - using Alloc = std::allocator; - - public: - Fixture() { ptr_ = std::allocator_traits::allocate(*alloc(), 1); } - ~Fixture() override { - std::allocator_traits::destroy(*alloc(), ptr_); - std::allocator_traits::deallocate(*alloc(), ptr_, 1); - } - std::string* ptr() { return ptr_; } - Alloc* alloc() { return &alloc_; } - - private: - Alloc alloc_; - std::string* ptr_; -}; - -TEST_F(Fixture, ConstructNoArgs) { - ConstructFromTuple(alloc(), ptr(), std::forward_as_tuple()); - EXPECT_EQ(*ptr(), ""); -} - -TEST_F(Fixture, ConstructOneArg) { - ConstructFromTuple(alloc(), ptr(), std::forward_as_tuple("abcde")); - EXPECT_EQ(*ptr(), "abcde"); -} - -TEST_F(Fixture, ConstructTwoArg) { - ConstructFromTuple(alloc(), ptr(), std::forward_as_tuple(5, 'a')); - EXPECT_EQ(*ptr(), "aaaaa"); -} - -TEST(PairArgs, NoArgs) { - EXPECT_THAT(PairArgs(), - Pair(std::forward_as_tuple(), std::forward_as_tuple())); -} - -TEST(PairArgs, TwoArgs) { - EXPECT_EQ( - std::make_pair(std::forward_as_tuple(1), std::forward_as_tuple('A')), - PairArgs(1, 'A')); -} - -TEST(PairArgs, Pair) { - EXPECT_EQ( - std::make_pair(std::forward_as_tuple(1), std::forward_as_tuple('A')), - PairArgs(std::make_pair(1, 'A'))); -} - -TEST(PairArgs, Piecewise) { - EXPECT_EQ( - std::make_pair(std::forward_as_tuple(1), std::forward_as_tuple('A')), - PairArgs(std::piecewise_construct, std::forward_as_tuple(1), - std::forward_as_tuple('A'))); -} - -TEST(WithConstructed, Simple) { - EXPECT_EQ(1, WithConstructed( - std::make_tuple(std::string("a")), - [](absl::string_view str) { return str.size(); })); -} - -template -decltype(DecomposeValue(std::declval(), std::declval())) -DecomposeValueImpl(int, F&& f, Arg&& arg) { - return DecomposeValue(std::forward(f), std::forward(arg)); -} - -template -const char* DecomposeValueImpl(char, F&& f, Arg&& arg) { - return "not decomposable"; -} - -template -decltype(DecomposeValueImpl(0, std::declval(), std::declval())) -TryDecomposeValue(F&& f, Arg&& arg) { - return DecomposeValueImpl(0, std::forward(f), std::forward(arg)); -} - -TEST(DecomposeValue, Decomposable) { - auto f = [](const int& x, int&& y) { // NOLINT - EXPECT_EQ(&x, &y); - EXPECT_EQ(42, x); - return 'A'; - }; - EXPECT_EQ('A', TryDecomposeValue(f, 42)); -} - -TEST(DecomposeValue, NotDecomposable) { - auto f = [](void*) { - ADD_FAILURE() << "Must not be called"; - return 'A'; - }; - EXPECT_STREQ("not decomposable", TryDecomposeValue(f, 42)); -} - -template -decltype(DecomposePair(std::declval(), std::declval()...)) -DecomposePairImpl(int, F&& f, Args&&... args) { - return DecomposePair(std::forward(f), std::forward(args)...); -} - -template -const char* DecomposePairImpl(char, F&& f, Args&&... args) { - return "not decomposable"; -} - -template -decltype(DecomposePairImpl(0, std::declval(), std::declval()...)) -TryDecomposePair(F&& f, Args&&... args) { - return DecomposePairImpl(0, std::forward(f), std::forward(args)...); -} - -TEST(DecomposePair, Decomposable) { - auto f = [](const int& x, // NOLINT - std::piecewise_construct_t, std::tuple k, - std::tuple&& v) { - EXPECT_EQ(&x, &std::get<0>(k)); - EXPECT_EQ(42, x); - EXPECT_EQ(0.5, std::get<0>(v)); - return 'A'; - }; - EXPECT_EQ('A', TryDecomposePair(f, 42, 0.5)); - EXPECT_EQ('A', TryDecomposePair(f, std::make_pair(42, 0.5))); - EXPECT_EQ('A', TryDecomposePair(f, std::piecewise_construct, - std::make_tuple(42), std::make_tuple(0.5))); -} - -TEST(DecomposePair, NotDecomposable) { - auto f = [](...) { - ADD_FAILURE() << "Must not be called"; - return 'A'; - }; - EXPECT_STREQ("not decomposable", - TryDecomposePair(f)); - EXPECT_STREQ("not decomposable", - TryDecomposePair(f, std::piecewise_construct, std::make_tuple(), - std::make_tuple(0.5))); -} - -TEST(MapSlotPolicy, ConstKeyAndValue) { - using slot_policy = map_slot_policy; - using slot_type = typename slot_policy::slot_type; - - union Slots { - Slots() {} - ~Slots() {} - slot_type slots[100]; - } slots; - - std::allocator< - std::pair> - alloc; - InstanceTracker tracker; - slot_policy::construct(&alloc, &slots.slots[0], CopyableMovableInstance(1), - CopyableMovableInstance(1)); - for (int i = 0; i < 99; ++i) { - slot_policy::transfer(&alloc, &slots.slots[i + 1], &slots.slots[i]); - } - slot_policy::destroy(&alloc, &slots.slots[99]); - - EXPECT_EQ(tracker.copies(), 0); -} - -} // namespace -} // namespace container_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/src/third_party/abseil-cpp/absl/container/internal/counting_allocator.h b/src/third_party/abseil-cpp/absl/container/internal/counting_allocator.h deleted file mode 100644 index 66068a5a0d..0000000000 --- a/src/third_party/abseil-cpp/absl/container/internal/counting_allocator.h +++ /dev/null @@ -1,122 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#ifndef ABSL_CONTAINER_INTERNAL_COUNTING_ALLOCATOR_H_ -#define ABSL_CONTAINER_INTERNAL_COUNTING_ALLOCATOR_H_ - -#include -#include - -#include "absl/base/config.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace container_internal { - -// This is a stateful allocator, but the state lives outside of the -// allocator (in whatever test is using the allocator). This is odd -// but helps in tests where the allocator is propagated into nested -// containers - that chain of allocators uses the same state and is -// thus easier to query for aggregate allocation information. -template -class CountingAllocator { - public: - using Allocator = std::allocator; - using AllocatorTraits = std::allocator_traits; - using value_type = typename AllocatorTraits::value_type; - using pointer = typename AllocatorTraits::pointer; - using const_pointer = typename AllocatorTraits::const_pointer; - using size_type = typename AllocatorTraits::size_type; - using difference_type = typename AllocatorTraits::difference_type; - - CountingAllocator() = default; - explicit CountingAllocator(int64_t* bytes_used) : bytes_used_(bytes_used) {} - CountingAllocator(int64_t* bytes_used, int64_t* instance_count) - : bytes_used_(bytes_used), instance_count_(instance_count) {} - - template - CountingAllocator(const CountingAllocator& x) - : bytes_used_(x.bytes_used_), instance_count_(x.instance_count_) {} - - pointer allocate( - size_type n, - typename AllocatorTraits::const_void_pointer hint = nullptr) { - Allocator allocator; - pointer ptr = AllocatorTraits::allocate(allocator, n, hint); - if (bytes_used_ != nullptr) { - *bytes_used_ += n * sizeof(T); - } - return ptr; - } - - void deallocate(pointer p, size_type n) { - Allocator allocator; - AllocatorTraits::deallocate(allocator, p, n); - if (bytes_used_ != nullptr) { - *bytes_used_ -= n * sizeof(T); - } - } - - template - void construct(U* p, Args&&... args) { - Allocator allocator; - AllocatorTraits::construct(allocator, p, std::forward(args)...); - if (instance_count_ != nullptr) { - *instance_count_ += 1; - } - } - - template - void destroy(U* p) { - Allocator allocator; - // Ignore GCC warning bug. -#if ABSL_INTERNAL_HAVE_MIN_GNUC_VERSION(12, 0) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wuse-after-free" -#endif - AllocatorTraits::destroy(allocator, p); -#if ABSL_INTERNAL_HAVE_MIN_GNUC_VERSION(12, 0) -#pragma GCC diagnostic pop -#endif - if (instance_count_ != nullptr) { - *instance_count_ -= 1; - } - } - - template - class rebind { - public: - using other = CountingAllocator; - }; - - friend bool operator==(const CountingAllocator& a, - const CountingAllocator& b) { - return a.bytes_used_ == b.bytes_used_ && - a.instance_count_ == b.instance_count_; - } - - friend bool operator!=(const CountingAllocator& a, - const CountingAllocator& b) { - return !(a == b); - } - - int64_t* bytes_used_ = nullptr; - int64_t* instance_count_ = nullptr; -}; - -} // namespace container_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_CONTAINER_INTERNAL_COUNTING_ALLOCATOR_H_ diff --git a/src/third_party/abseil-cpp/absl/container/internal/hash_function_defaults.h b/src/third_party/abseil-cpp/absl/container/internal/hash_function_defaults.h deleted file mode 100644 index 250e662c9d..0000000000 --- a/src/third_party/abseil-cpp/absl/container/internal/hash_function_defaults.h +++ /dev/null @@ -1,163 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// Define the default Hash and Eq functions for SwissTable containers. -// -// std::hash and std::equal_to are not appropriate hash and equal -// functions for SwissTable containers. There are two reasons for this. -// -// SwissTable containers are power of 2 sized containers: -// -// This means they use the lower bits of the hash value to find the slot for -// each entry. The typical hash function for integral types is the identity. -// This is a very weak hash function for SwissTable and any power of 2 sized -// hashtable implementation which will lead to excessive collisions. For -// SwissTable we use murmur3 style mixing to reduce collisions to a minimum. -// -// SwissTable containers support heterogeneous lookup: -// -// In order to make heterogeneous lookup work, hash and equal functions must be -// polymorphic. At the same time they have to satisfy the same requirements the -// C++ standard imposes on hash functions and equality operators. That is: -// -// if hash_default_eq(a, b) returns true for any a and b of type T, then -// hash_default_hash(a) must equal hash_default_hash(b) -// -// For SwissTable containers this requirement is relaxed to allow a and b of -// any and possibly different types. Note that like the standard the hash and -// equal functions are still bound to T. This is important because some type U -// can be hashed by/tested for equality differently depending on T. A notable -// example is `const char*`. `const char*` is treated as a c-style string when -// the hash function is hash but as a pointer when the hash -// function is hash. -// -#ifndef ABSL_CONTAINER_INTERNAL_HASH_FUNCTION_DEFAULTS_H_ -#define ABSL_CONTAINER_INTERNAL_HASH_FUNCTION_DEFAULTS_H_ - -#include -#include -#include -#include -#include - -#include "absl/base/config.h" -#include "absl/hash/hash.h" -#include "absl/strings/cord.h" -#include "absl/strings/string_view.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace container_internal { - -// The hash of an object of type T is computed by using absl::Hash. -template -struct HashEq { - using Hash = absl::Hash; - using Eq = std::equal_to; -}; - -struct StringHash { - using is_transparent = void; - - size_t operator()(absl::string_view v) const { - return absl::Hash{}(v); - } - size_t operator()(const absl::Cord& v) const { - return absl::Hash{}(v); - } -}; - -struct StringEq { - using is_transparent = void; - bool operator()(absl::string_view lhs, absl::string_view rhs) const { - return lhs == rhs; - } - bool operator()(const absl::Cord& lhs, const absl::Cord& rhs) const { - return lhs == rhs; - } - bool operator()(const absl::Cord& lhs, absl::string_view rhs) const { - return lhs == rhs; - } - bool operator()(absl::string_view lhs, const absl::Cord& rhs) const { - return lhs == rhs; - } -}; - -// Supports heterogeneous lookup for string-like elements. -struct StringHashEq { - using Hash = StringHash; - using Eq = StringEq; -}; - -template <> -struct HashEq : StringHashEq {}; -template <> -struct HashEq : StringHashEq {}; -template <> -struct HashEq : StringHashEq {}; - -// Supports heterogeneous lookup for pointers and smart pointers. -template -struct HashEq { - struct Hash { - using is_transparent = void; - template - size_t operator()(const U& ptr) const { - return absl::Hash{}(HashEq::ToPtr(ptr)); - } - }; - struct Eq { - using is_transparent = void; - template - bool operator()(const A& a, const B& b) const { - return HashEq::ToPtr(a) == HashEq::ToPtr(b); - } - }; - - private: - static const T* ToPtr(const T* ptr) { return ptr; } - template - static const T* ToPtr(const std::unique_ptr& ptr) { - return ptr.get(); - } - template - static const T* ToPtr(const std::shared_ptr& ptr) { - return ptr.get(); - } -}; - -template -struct HashEq> : HashEq {}; -template -struct HashEq> : HashEq {}; - -// This header's visibility is restricted. If you need to access the default -// hasher please use the container's ::hasher alias instead. -// -// Example: typename Hash = typename absl::flat_hash_map::hasher -template -using hash_default_hash = typename container_internal::HashEq::Hash; - -// This header's visibility is restricted. If you need to access the default -// key equal please use the container's ::key_equal alias instead. -// -// Example: typename Eq = typename absl::flat_hash_map::key_equal -template -using hash_default_eq = typename container_internal::HashEq::Eq; - -} // namespace container_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_CONTAINER_INTERNAL_HASH_FUNCTION_DEFAULTS_H_ diff --git a/src/third_party/abseil-cpp/absl/container/internal/hash_function_defaults_test.cc b/src/third_party/abseil-cpp/absl/container/internal/hash_function_defaults_test.cc deleted file mode 100644 index 9f0a4c72ca..0000000000 --- a/src/third_party/abseil-cpp/absl/container/internal/hash_function_defaults_test.cc +++ /dev/null @@ -1,383 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/container/internal/hash_function_defaults.h" - -#include -#include -#include - -#include "gtest/gtest.h" -#include "absl/random/random.h" -#include "absl/strings/cord.h" -#include "absl/strings/cord_test_helpers.h" -#include "absl/strings/string_view.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace container_internal { -namespace { - -using ::testing::Types; - -TEST(Eq, Int32) { - hash_default_eq eq; - EXPECT_TRUE(eq(1, 1u)); - EXPECT_TRUE(eq(1, char{1})); - EXPECT_TRUE(eq(1, true)); - EXPECT_TRUE(eq(1, double{1.1})); - EXPECT_FALSE(eq(1, char{2})); - EXPECT_FALSE(eq(1, 2u)); - EXPECT_FALSE(eq(1, false)); - EXPECT_FALSE(eq(1, 2.)); -} - -TEST(Hash, Int32) { - hash_default_hash hash; - auto h = hash(1); - EXPECT_EQ(h, hash(1u)); - EXPECT_EQ(h, hash(char{1})); - EXPECT_EQ(h, hash(true)); - EXPECT_EQ(h, hash(double{1.1})); - EXPECT_NE(h, hash(2u)); - EXPECT_NE(h, hash(char{2})); - EXPECT_NE(h, hash(false)); - EXPECT_NE(h, hash(2.)); -} - -enum class MyEnum { A, B, C, D }; - -TEST(Eq, Enum) { - hash_default_eq eq; - EXPECT_TRUE(eq(MyEnum::A, MyEnum::A)); - EXPECT_FALSE(eq(MyEnum::A, MyEnum::B)); -} - -TEST(Hash, Enum) { - hash_default_hash hash; - - for (MyEnum e : {MyEnum::A, MyEnum::B, MyEnum::C}) { - auto h = hash(e); - EXPECT_EQ(h, hash_default_hash{}(static_cast(e))); - EXPECT_NE(h, hash(MyEnum::D)); - } -} - -using StringTypes = ::testing::Types; - -template -struct EqString : ::testing::Test { - hash_default_eq key_eq; -}; - -TYPED_TEST_SUITE(EqString, StringTypes); - -template -struct HashString : ::testing::Test { - hash_default_hash hasher; -}; - -TYPED_TEST_SUITE(HashString, StringTypes); - -TYPED_TEST(EqString, Works) { - auto eq = this->key_eq; - EXPECT_TRUE(eq("a", "a")); - EXPECT_TRUE(eq("a", absl::string_view("a"))); - EXPECT_TRUE(eq("a", std::string("a"))); - EXPECT_FALSE(eq("a", "b")); - EXPECT_FALSE(eq("a", absl::string_view("b"))); - EXPECT_FALSE(eq("a", std::string("b"))); -} - -TYPED_TEST(HashString, Works) { - auto hash = this->hasher; - auto h = hash("a"); - EXPECT_EQ(h, hash(absl::string_view("a"))); - EXPECT_EQ(h, hash(std::string("a"))); - EXPECT_NE(h, hash(absl::string_view("b"))); - EXPECT_NE(h, hash(std::string("b"))); -} - -struct NoDeleter { - template - void operator()(const T* ptr) const {} -}; - -using PointerTypes = - ::testing::Types, - std::unique_ptr, - std::unique_ptr, std::unique_ptr, - std::shared_ptr, std::shared_ptr>; - -template -struct EqPointer : ::testing::Test { - hash_default_eq key_eq; -}; - -TYPED_TEST_SUITE(EqPointer, PointerTypes); - -template -struct HashPointer : ::testing::Test { - hash_default_hash hasher; -}; - -TYPED_TEST_SUITE(HashPointer, PointerTypes); - -TYPED_TEST(EqPointer, Works) { - int dummy; - auto eq = this->key_eq; - auto sptr = std::make_shared(); - std::shared_ptr csptr = sptr; - int* ptr = sptr.get(); - const int* cptr = ptr; - std::unique_ptr uptr(ptr); - std::unique_ptr cuptr(ptr); - - EXPECT_TRUE(eq(ptr, cptr)); - EXPECT_TRUE(eq(ptr, sptr)); - EXPECT_TRUE(eq(ptr, uptr)); - EXPECT_TRUE(eq(ptr, csptr)); - EXPECT_TRUE(eq(ptr, cuptr)); - EXPECT_FALSE(eq(&dummy, cptr)); - EXPECT_FALSE(eq(&dummy, sptr)); - EXPECT_FALSE(eq(&dummy, uptr)); - EXPECT_FALSE(eq(&dummy, csptr)); - EXPECT_FALSE(eq(&dummy, cuptr)); -} - -TEST(Hash, DerivedAndBase) { - struct Base {}; - struct Derived : Base {}; - - hash_default_hash hasher; - - Base base; - Derived derived; - EXPECT_NE(hasher(&base), hasher(&derived)); - EXPECT_EQ(hasher(static_cast(&derived)), hasher(&derived)); - - auto dp = std::make_shared(); - EXPECT_EQ(hasher(static_cast(dp.get())), hasher(dp)); -} - -TEST(Hash, FunctionPointer) { - using Func = int (*)(); - hash_default_hash hasher; - hash_default_eq eq; - - Func p1 = [] { return 1; }, p2 = [] { return 2; }; - EXPECT_EQ(hasher(p1), hasher(p1)); - EXPECT_TRUE(eq(p1, p1)); - - EXPECT_NE(hasher(p1), hasher(p2)); - EXPECT_FALSE(eq(p1, p2)); -} - -TYPED_TEST(HashPointer, Works) { - int dummy; - auto hash = this->hasher; - auto sptr = std::make_shared(); - std::shared_ptr csptr = sptr; - int* ptr = sptr.get(); - const int* cptr = ptr; - std::unique_ptr uptr(ptr); - std::unique_ptr cuptr(ptr); - - EXPECT_EQ(hash(ptr), hash(cptr)); - EXPECT_EQ(hash(ptr), hash(sptr)); - EXPECT_EQ(hash(ptr), hash(uptr)); - EXPECT_EQ(hash(ptr), hash(csptr)); - EXPECT_EQ(hash(ptr), hash(cuptr)); - EXPECT_NE(hash(&dummy), hash(cptr)); - EXPECT_NE(hash(&dummy), hash(sptr)); - EXPECT_NE(hash(&dummy), hash(uptr)); - EXPECT_NE(hash(&dummy), hash(csptr)); - EXPECT_NE(hash(&dummy), hash(cuptr)); -} - -TEST(EqCord, Works) { - hash_default_eq eq; - const absl::string_view a_string_view = "a"; - const absl::Cord a_cord(a_string_view); - const absl::string_view b_string_view = "b"; - const absl::Cord b_cord(b_string_view); - - EXPECT_TRUE(eq(a_cord, a_cord)); - EXPECT_TRUE(eq(a_cord, a_string_view)); - EXPECT_TRUE(eq(a_string_view, a_cord)); - EXPECT_FALSE(eq(a_cord, b_cord)); - EXPECT_FALSE(eq(a_cord, b_string_view)); - EXPECT_FALSE(eq(b_string_view, a_cord)); -} - -TEST(HashCord, Works) { - hash_default_hash hash; - const absl::string_view a_string_view = "a"; - const absl::Cord a_cord(a_string_view); - const absl::string_view b_string_view = "b"; - const absl::Cord b_cord(b_string_view); - - EXPECT_EQ(hash(a_cord), hash(a_cord)); - EXPECT_EQ(hash(b_cord), hash(b_cord)); - EXPECT_EQ(hash(a_string_view), hash(a_cord)); - EXPECT_EQ(hash(b_string_view), hash(b_cord)); - EXPECT_EQ(hash(absl::Cord("")), hash("")); - EXPECT_EQ(hash(absl::Cord()), hash(absl::string_view())); - - EXPECT_NE(hash(a_cord), hash(b_cord)); - EXPECT_NE(hash(a_cord), hash(b_string_view)); - EXPECT_NE(hash(a_string_view), hash(b_cord)); - EXPECT_NE(hash(a_string_view), hash(b_string_view)); -} - -void NoOpReleaser(absl::string_view data, void* arg) {} - -TEST(HashCord, FragmentedCordWorks) { - hash_default_hash hash; - absl::Cord c = absl::MakeFragmentedCord({"a", "b", "c"}); - EXPECT_FALSE(c.TryFlat().has_value()); - EXPECT_EQ(hash(c), hash("abc")); -} - -TEST(HashCord, FragmentedLongCordWorks) { - hash_default_hash hash; - // Crete some large strings which do not fit on the stack. - std::string a(65536, 'a'); - std::string b(65536, 'b'); - absl::Cord c = absl::MakeFragmentedCord({a, b}); - EXPECT_FALSE(c.TryFlat().has_value()); - EXPECT_EQ(hash(c), hash(a + b)); -} - -TEST(HashCord, RandomCord) { - hash_default_hash hash; - auto bitgen = absl::BitGen(); - for (int i = 0; i < 1000; ++i) { - const int number_of_segments = absl::Uniform(bitgen, 0, 10); - std::vector pieces; - for (size_t s = 0; s < number_of_segments; ++s) { - std::string str; - str.resize(absl::Uniform(bitgen, 0, 4096)); - // MSVC needed the explicit return type in the lambda. - std::generate(str.begin(), str.end(), [&]() -> char { - return static_cast(absl::Uniform(bitgen)); - }); - pieces.push_back(str); - } - absl::Cord c = absl::MakeFragmentedCord(pieces); - EXPECT_EQ(hash(c), hash(std::string(c))); - } -} - -// Cartesian product of (std::string, absl::string_view) -// with (std::string, absl::string_view, const char*, absl::Cord). -using StringTypesCartesianProduct = Types< - // clang-format off - std::pair, - std::pair, - std::pair, - std::pair, - - std::pair, - std::pair, - - std::pair, - std::pair, - std::pair>; -// clang-format on - -constexpr char kFirstString[] = "abc123"; -constexpr char kSecondString[] = "ijk456"; - -template -struct StringLikeTest : public ::testing::Test { - typename T::first_type a1{kFirstString}; - typename T::second_type b1{kFirstString}; - typename T::first_type a2{kSecondString}; - typename T::second_type b2{kSecondString}; - hash_default_eq eq; - hash_default_hash hash; -}; - -TYPED_TEST_SUITE_P(StringLikeTest); - -TYPED_TEST_P(StringLikeTest, Eq) { - EXPECT_TRUE(this->eq(this->a1, this->b1)); - EXPECT_TRUE(this->eq(this->b1, this->a1)); -} - -TYPED_TEST_P(StringLikeTest, NotEq) { - EXPECT_FALSE(this->eq(this->a1, this->b2)); - EXPECT_FALSE(this->eq(this->b2, this->a1)); -} - -TYPED_TEST_P(StringLikeTest, HashEq) { - EXPECT_EQ(this->hash(this->a1), this->hash(this->b1)); - EXPECT_EQ(this->hash(this->a2), this->hash(this->b2)); - // It would be a poor hash function which collides on these strings. - EXPECT_NE(this->hash(this->a1), this->hash(this->b2)); -} - -TYPED_TEST_SUITE(StringLikeTest, StringTypesCartesianProduct); - -} // namespace -} // namespace container_internal -ABSL_NAMESPACE_END -} // namespace absl - -enum Hash : size_t { - kStd = 0x1, // std::hash -#ifdef _MSC_VER - kExtension = kStd, // In MSVC, std::hash == ::hash -#else // _MSC_VER - kExtension = 0x2, // ::hash (GCC extension) -#endif // _MSC_VER -}; - -// H is a bitmask of Hash enumerations. -// Hashable is hashable via all means specified in H. -template -struct Hashable { - static constexpr bool HashableBy(Hash h) { return h & H; } -}; - -namespace std { -template -struct hash> { - template , - class = typename std::enable_if::type> - size_t operator()(E) const { - return kStd; - } -}; -} // namespace std - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace container_internal { -namespace { - -template -size_t Hash(const T& v) { - return hash_default_hash()(v); -} - -TEST(Delegate, HashDispatch) { - EXPECT_EQ(Hash(kStd), Hash(Hashable())); -} - -} // namespace -} // namespace container_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/src/third_party/abseil-cpp/absl/container/internal/hash_generator_testing.cc b/src/third_party/abseil-cpp/absl/container/internal/hash_generator_testing.cc deleted file mode 100644 index 59cc5aac7a..0000000000 --- a/src/third_party/abseil-cpp/absl/container/internal/hash_generator_testing.cc +++ /dev/null @@ -1,76 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/container/internal/hash_generator_testing.h" - -#include - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace container_internal { -namespace hash_internal { -namespace { - -class RandomDeviceSeedSeq { - public: - using result_type = typename std::random_device::result_type; - - template - void generate(Iterator start, Iterator end) { - while (start != end) { - *start = gen_(); - ++start; - } - } - - private: - std::random_device gen_; -}; - -} // namespace - -std::mt19937_64* GetSharedRng() { - static auto* rng = [] { - RandomDeviceSeedSeq seed_seq; - return new std::mt19937_64(seed_seq); - }(); - return rng; -} - -std::string Generator::operator()() const { - // NOLINTNEXTLINE(runtime/int) - std::uniform_int_distribution chars(0x20, 0x7E); - std::string res; - res.resize(32); - std::generate(res.begin(), res.end(), - [&]() { return chars(*GetSharedRng()); }); - return res; -} - -absl::string_view Generator::operator()() const { - static auto* arena = new std::deque(); - // NOLINTNEXTLINE(runtime/int) - std::uniform_int_distribution chars(0x20, 0x7E); - arena->emplace_back(); - auto& res = arena->back(); - res.resize(32); - std::generate(res.begin(), res.end(), - [&]() { return chars(*GetSharedRng()); }); - return res; -} - -} // namespace hash_internal -} // namespace container_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/src/third_party/abseil-cpp/absl/container/internal/hash_generator_testing.h b/src/third_party/abseil-cpp/absl/container/internal/hash_generator_testing.h deleted file mode 100644 index f1f555a5c1..0000000000 --- a/src/third_party/abseil-cpp/absl/container/internal/hash_generator_testing.h +++ /dev/null @@ -1,182 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// Generates random values for testing. Specialized only for the few types we -// care about. - -#ifndef ABSL_CONTAINER_INTERNAL_HASH_GENERATOR_TESTING_H_ -#define ABSL_CONTAINER_INTERNAL_HASH_GENERATOR_TESTING_H_ - -#include - -#include -#include -#include -#include -#include -#include -#include -#include - -#include "absl/container/internal/hash_policy_testing.h" -#include "absl/memory/memory.h" -#include "absl/meta/type_traits.h" -#include "absl/strings/string_view.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace container_internal { -namespace hash_internal { -namespace generator_internal { - -template -struct IsMap : std::false_type {}; - -template -struct IsMap> : std::true_type {}; - -} // namespace generator_internal - -std::mt19937_64* GetSharedRng(); - -enum Enum { - kEnumEmpty, - kEnumDeleted, -}; - -enum class EnumClass : uint64_t { - kEmpty, - kDeleted, -}; - -inline std::ostream& operator<<(std::ostream& o, const EnumClass& ec) { - return o << static_cast(ec); -} - -template -struct Generator; - -template -struct Generator::value>::type> { - T operator()() const { - std::uniform_int_distribution dist; - return dist(*GetSharedRng()); - } -}; - -template <> -struct Generator { - Enum operator()() const { - std::uniform_int_distribution::type> - dist; - while (true) { - auto variate = dist(*GetSharedRng()); - if (variate != kEnumEmpty && variate != kEnumDeleted) - return static_cast(variate); - } - } -}; - -template <> -struct Generator { - EnumClass operator()() const { - std::uniform_int_distribution< - typename std::underlying_type::type> - dist; - while (true) { - EnumClass variate = static_cast(dist(*GetSharedRng())); - if (variate != EnumClass::kEmpty && variate != EnumClass::kDeleted) - return static_cast(variate); - } - } -}; - -template <> -struct Generator { - std::string operator()() const; -}; - -template <> -struct Generator { - absl::string_view operator()() const; -}; - -template <> -struct Generator { - NonStandardLayout operator()() const { - return NonStandardLayout(Generator()()); - } -}; - -template -struct Generator> { - std::pair operator()() const { - return std::pair(Generator::type>()(), - Generator::type>()()); - } -}; - -template -struct Generator> { - std::tuple operator()() const { - return std::tuple(Generator::type>()()...); - } -}; - -template -struct Generator> { - std::unique_ptr operator()() const { - return absl::make_unique(Generator()()); - } -}; - -template -struct Generator().key()), - decltype(std::declval().value())>> - : Generator().key())>::type, - typename std::decay().value())>::type>> {}; - -template -using GeneratedType = decltype( - std::declval::value, - typename Container::value_type, - typename Container::key_type>::type>&>()()); - -// Naive wrapper that performs a linear search of previous values. -// Beware this is O(SQR), which is reasonable for smaller kMaxValues. -template -struct UniqueGenerator { - Generator gen; - std::vector values; - - T operator()() { - assert(values.size() < kMaxValues); - for (;;) { - T value = gen(); - if (std::find(values.begin(), values.end(), value) == values.end()) { - values.push_back(value); - return value; - } - } - } -}; - -} // namespace hash_internal -} // namespace container_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_CONTAINER_INTERNAL_HASH_GENERATOR_TESTING_H_ diff --git a/src/third_party/abseil-cpp/absl/container/internal/hash_policy_testing.h b/src/third_party/abseil-cpp/absl/container/internal/hash_policy_testing.h deleted file mode 100644 index 01c40d2e5c..0000000000 --- a/src/third_party/abseil-cpp/absl/container/internal/hash_policy_testing.h +++ /dev/null @@ -1,184 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// Utilities to help tests verify that hash tables properly handle stateful -// allocators and hash functions. - -#ifndef ABSL_CONTAINER_INTERNAL_HASH_POLICY_TESTING_H_ -#define ABSL_CONTAINER_INTERNAL_HASH_POLICY_TESTING_H_ - -#include -#include -#include -#include -#include -#include -#include - -#include "absl/hash/hash.h" -#include "absl/strings/string_view.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace container_internal { -namespace hash_testing_internal { - -template -struct WithId { - WithId() : id_(next_id()) {} - WithId(const WithId& that) : id_(that.id_) {} - WithId(WithId&& that) : id_(that.id_) { that.id_ = 0; } - WithId& operator=(const WithId& that) { - id_ = that.id_; - return *this; - } - WithId& operator=(WithId&& that) { - id_ = that.id_; - that.id_ = 0; - return *this; - } - - size_t id() const { return id_; } - - friend bool operator==(const WithId& a, const WithId& b) { - return a.id_ == b.id_; - } - friend bool operator!=(const WithId& a, const WithId& b) { return !(a == b); } - - protected: - explicit WithId(size_t id) : id_(id) {} - - private: - size_t id_; - - template - static size_t next_id() { - // 0 is reserved for moved from state. - static size_t gId = 1; - return gId++; - } -}; - -} // namespace hash_testing_internal - -struct NonStandardLayout { - NonStandardLayout() {} - explicit NonStandardLayout(std::string s) : value(std::move(s)) {} - virtual ~NonStandardLayout() {} - - friend bool operator==(const NonStandardLayout& a, - const NonStandardLayout& b) { - return a.value == b.value; - } - friend bool operator!=(const NonStandardLayout& a, - const NonStandardLayout& b) { - return a.value != b.value; - } - - template - friend H AbslHashValue(H h, const NonStandardLayout& v) { - return H::combine(std::move(h), v.value); - } - - std::string value; -}; - -struct StatefulTestingHash - : absl::container_internal::hash_testing_internal::WithId< - StatefulTestingHash> { - template - size_t operator()(const T& t) const { - return absl::Hash{}(t); - } -}; - -struct StatefulTestingEqual - : absl::container_internal::hash_testing_internal::WithId< - StatefulTestingEqual> { - template - bool operator()(const T& t, const U& u) const { - return t == u; - } -}; - -// It is expected that Alloc() == Alloc() for all allocators so we cannot use -// WithId base. We need to explicitly assign ids. -template -struct Alloc : std::allocator { - using propagate_on_container_swap = std::true_type; - - // Using old paradigm for this to ensure compatibility. - explicit Alloc(size_t id = 0) : id_(id) {} - - Alloc(const Alloc&) = default; - Alloc& operator=(const Alloc&) = default; - - template - Alloc(const Alloc& that) : std::allocator(that), id_(that.id()) {} - - template - struct rebind { - using other = Alloc; - }; - - size_t id() const { return id_; } - - friend bool operator==(const Alloc& a, const Alloc& b) { - return a.id_ == b.id_; - } - friend bool operator!=(const Alloc& a, const Alloc& b) { return !(a == b); } - - private: - size_t id_ = (std::numeric_limits::max)(); -}; - -template -auto items(const Map& m) -> std::vector< - std::pair> { - using std::get; - std::vector> res; - res.reserve(m.size()); - for (const auto& v : m) res.emplace_back(get<0>(v), get<1>(v)); - return res; -} - -template -auto keys(const Set& s) - -> std::vector::type> { - std::vector::type> res; - res.reserve(s.size()); - for (const auto& v : s) res.emplace_back(v); - return res; -} - -} // namespace container_internal -ABSL_NAMESPACE_END -} // namespace absl - -// ABSL_UNORDERED_SUPPORTS_ALLOC_CTORS is false for glibcxx versions -// where the unordered containers are missing certain constructors that -// take allocator arguments. This test is defined ad-hoc for the platforms -// we care about (notably Crosstool 17) because libstdcxx's useless -// versioning scheme precludes a more principled solution. -// From GCC-4.9 Changelog: (src: https://gcc.gnu.org/gcc-4.9/changes.html) -// "the unordered associative containers in and -// meet the allocator-aware container requirements;" -#if (defined(__GLIBCXX__) && __GLIBCXX__ <= 20140425 ) || \ -( __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 9 )) -#define ABSL_UNORDERED_SUPPORTS_ALLOC_CTORS 0 -#else -#define ABSL_UNORDERED_SUPPORTS_ALLOC_CTORS 1 -#endif - -#endif // ABSL_CONTAINER_INTERNAL_HASH_POLICY_TESTING_H_ diff --git a/src/third_party/abseil-cpp/absl/container/internal/hash_policy_testing_test.cc b/src/third_party/abseil-cpp/absl/container/internal/hash_policy_testing_test.cc deleted file mode 100644 index f0b20fe345..0000000000 --- a/src/third_party/abseil-cpp/absl/container/internal/hash_policy_testing_test.cc +++ /dev/null @@ -1,45 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/container/internal/hash_policy_testing.h" - -#include "gtest/gtest.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace container_internal { -namespace { - -TEST(_, Hash) { - StatefulTestingHash h1; - EXPECT_EQ(1, h1.id()); - StatefulTestingHash h2; - EXPECT_EQ(2, h2.id()); - StatefulTestingHash h1c(h1); - EXPECT_EQ(1, h1c.id()); - StatefulTestingHash h2m(std::move(h2)); - EXPECT_EQ(2, h2m.id()); - EXPECT_EQ(0, h2.id()); - StatefulTestingHash h3; - EXPECT_EQ(3, h3.id()); - h3 = StatefulTestingHash(); - EXPECT_EQ(4, h3.id()); - h3 = std::move(h1); - EXPECT_EQ(1, h3.id()); -} - -} // namespace -} // namespace container_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/src/third_party/abseil-cpp/absl/container/internal/hash_policy_traits.h b/src/third_party/abseil-cpp/absl/container/internal/hash_policy_traits.h deleted file mode 100644 index 164ec12316..0000000000 --- a/src/third_party/abseil-cpp/absl/container/internal/hash_policy_traits.h +++ /dev/null @@ -1,157 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#ifndef ABSL_CONTAINER_INTERNAL_HASH_POLICY_TRAITS_H_ -#define ABSL_CONTAINER_INTERNAL_HASH_POLICY_TRAITS_H_ - -#include -#include -#include -#include -#include - -#include "absl/container/internal/common_policy_traits.h" -#include "absl/meta/type_traits.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace container_internal { - -// Defines how slots are initialized/destroyed/moved. -template -struct hash_policy_traits : common_policy_traits { - // The type of the keys stored in the hashtable. - using key_type = typename Policy::key_type; - - private: - struct ReturnKey { - // When C++17 is available, we can use std::launder to provide mutable - // access to the key for use in node handle. -#if defined(__cpp_lib_launder) && __cpp_lib_launder >= 201606 - template ::value, int> = 0> - static key_type& Impl(Key&& k, int) { - return *std::launder( - const_cast(std::addressof(std::forward(k)))); - } -#endif - - template - static Key Impl(Key&& k, char) { - return std::forward(k); - } - - // When Key=T&, we forward the lvalue reference. - // When Key=T, we return by value to avoid a dangling reference. - // eg, for string_hash_map. - template - auto operator()(Key&& k, const Args&...) const - -> decltype(Impl(std::forward(k), 0)) { - return Impl(std::forward(k), 0); - } - }; - - template - struct ConstantIteratorsImpl : std::false_type {}; - - template - struct ConstantIteratorsImpl> - : P::constant_iterators {}; - - public: - // The actual object stored in the hash table. - using slot_type = typename Policy::slot_type; - - // The argument type for insertions into the hashtable. This is different - // from value_type for increased performance. See initializer_list constructor - // and insert() member functions for more details. - using init_type = typename Policy::init_type; - - using reference = decltype(Policy::element(std::declval())); - using pointer = typename std::remove_reference::type*; - using value_type = typename std::remove_reference::type; - - // Policies can set this variable to tell raw_hash_set that all iterators - // should be constant, even `iterator`. This is useful for set-like - // containers. - // Defaults to false if not provided by the policy. - using constant_iterators = ConstantIteratorsImpl<>; - - // Returns the amount of memory owned by `slot`, exclusive of `sizeof(*slot)`. - // - // If `slot` is nullptr, returns the constant amount of memory owned by any - // full slot or -1 if slots own variable amounts of memory. - // - // PRECONDITION: `slot` is INITIALIZED or nullptr - template - static size_t space_used(const slot_type* slot) { - return P::space_used(slot); - } - - // Provides generalized access to the key for elements, both for elements in - // the table and for elements that have not yet been inserted (or even - // constructed). We would like an API that allows us to say: `key(args...)` - // but we cannot do that for all cases, so we use this more general API that - // can be used for many things, including the following: - // - // - Given an element in a table, get its key. - // - Given an element initializer, get its key. - // - Given `emplace()` arguments, get the element key. - // - // Implementations of this must adhere to a very strict technical - // specification around aliasing and consuming arguments: - // - // Let `value_type` be the result type of `element()` without ref- and - // cv-qualifiers. The first argument is a functor, the rest are constructor - // arguments for `value_type`. Returns `std::forward(f)(k, xs...)`, where - // `k` is the element key, and `xs...` are the new constructor arguments for - // `value_type`. It's allowed for `k` to alias `xs...`, and for both to alias - // `ts...`. The key won't be touched once `xs...` are used to construct an - // element; `ts...` won't be touched at all, which allows `apply()` to consume - // any rvalues among them. - // - // If `value_type` is constructible from `Ts&&...`, `Policy::apply()` must not - // trigger a hard compile error unless it originates from `f`. In other words, - // `Policy::apply()` must be SFINAE-friendly. If `value_type` is not - // constructible from `Ts&&...`, either SFINAE or a hard compile error is OK. - // - // If `Ts...` is `[cv] value_type[&]` or `[cv] init_type[&]`, - // `Policy::apply()` must work. A compile error is not allowed, SFINAE or not. - template - static auto apply(F&& f, Ts&&... ts) - -> decltype(P::apply(std::forward(f), std::forward(ts)...)) { - return P::apply(std::forward(f), std::forward(ts)...); - } - - // Returns the "key" portion of the slot. - // Used for node handle manipulation. - template - static auto mutable_key(slot_type* slot) - -> decltype(P::apply(ReturnKey(), hash_policy_traits::element(slot))) { - return P::apply(ReturnKey(), hash_policy_traits::element(slot)); - } - - // Returns the "value" (as opposed to the "key") portion of the element. Used - // by maps to implement `operator[]`, `at()` and `insert_or_assign()`. - template - static auto value(T* elem) -> decltype(P::value(elem)) { - return P::value(elem); - } -}; - -} // namespace container_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_CONTAINER_INTERNAL_HASH_POLICY_TRAITS_H_ diff --git a/src/third_party/abseil-cpp/absl/container/internal/hash_policy_traits_test.cc b/src/third_party/abseil-cpp/absl/container/internal/hash_policy_traits_test.cc deleted file mode 100644 index 82d7cc3a70..0000000000 --- a/src/third_party/abseil-cpp/absl/container/internal/hash_policy_traits_test.cc +++ /dev/null @@ -1,80 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/container/internal/hash_policy_traits.h" - -#include -#include -#include - -#include "gmock/gmock.h" -#include "gtest/gtest.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace container_internal { -namespace { - -using ::testing::MockFunction; -using ::testing::Return; -using ::testing::ReturnRef; - -using Alloc = std::allocator; -using Slot = int; - -struct PolicyWithoutOptionalOps { - using slot_type = Slot; - using key_type = Slot; - using init_type = Slot; - - static std::function element; - static int apply(int v) { return apply_impl(v); } - static std::function apply_impl; - static std::function value; -}; - -std::function PolicyWithoutOptionalOps::apply_impl; -std::function PolicyWithoutOptionalOps::value; - -struct Test : ::testing::Test { - Test() { - PolicyWithoutOptionalOps::apply_impl = [&](int a1) -> int { - return apply.Call(a1); - }; - PolicyWithoutOptionalOps::value = [&](Slot* a1) -> Slot& { - return value.Call(a1); - }; - } - - std::allocator alloc; - int a = 53; - MockFunction apply; - MockFunction value; -}; - -TEST_F(Test, apply) { - EXPECT_CALL(apply, Call(42)).WillOnce(Return(1337)); - EXPECT_EQ(1337, (hash_policy_traits::apply(42))); -} - -TEST_F(Test, value) { - int b = 0; - EXPECT_CALL(value, Call(&a)).WillOnce(ReturnRef(b)); - EXPECT_EQ(&b, &hash_policy_traits::value(&a)); -} - -} // namespace -} // namespace container_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/src/third_party/abseil-cpp/absl/container/internal/hashtable_debug.h b/src/third_party/abseil-cpp/absl/container/internal/hashtable_debug.h deleted file mode 100644 index 19d52121d6..0000000000 --- a/src/third_party/abseil-cpp/absl/container/internal/hashtable_debug.h +++ /dev/null @@ -1,110 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// This library provides APIs to debug the probing behavior of hash tables. -// -// In general, the probing behavior is a black box for users and only the -// side effects can be measured in the form of performance differences. -// These APIs give a glimpse on the actual behavior of the probing algorithms in -// these hashtables given a specified hash function and a set of elements. -// -// The probe count distribution can be used to assess the quality of the hash -// function for that particular hash table. Note that a hash function that -// performs well in one hash table implementation does not necessarily performs -// well in a different one. -// -// This library supports std::unordered_{set,map}, dense_hash_{set,map} and -// absl::{flat,node,string}_hash_{set,map}. - -#ifndef ABSL_CONTAINER_INTERNAL_HASHTABLE_DEBUG_H_ -#define ABSL_CONTAINER_INTERNAL_HASHTABLE_DEBUG_H_ - -#include -#include -#include -#include - -#include "absl/container/internal/hashtable_debug_hooks.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace container_internal { - -// Returns the number of probes required to lookup `key`. Returns 0 for a -// search with no collisions. Higher values mean more hash collisions occurred; -// however, the exact meaning of this number varies according to the container -// type. -template -size_t GetHashtableDebugNumProbes( - const C& c, const typename C::key_type& key) { - return absl::container_internal::hashtable_debug_internal:: - HashtableDebugAccess::GetNumProbes(c, key); -} - -// Gets a histogram of the number of probes for each elements in the container. -// The sum of all the values in the vector is equal to container.size(). -template -std::vector GetHashtableDebugNumProbesHistogram(const C& container) { - std::vector v; - for (auto it = container.begin(); it != container.end(); ++it) { - size_t num_probes = GetHashtableDebugNumProbes( - container, - absl::container_internal::hashtable_debug_internal::GetKey(*it, 0)); - v.resize((std::max)(v.size(), num_probes + 1)); - v[num_probes]++; - } - return v; -} - -struct HashtableDebugProbeSummary { - size_t total_elements; - size_t total_num_probes; - double mean; -}; - -// Gets a summary of the probe count distribution for the elements in the -// container. -template -HashtableDebugProbeSummary GetHashtableDebugProbeSummary(const C& container) { - auto probes = GetHashtableDebugNumProbesHistogram(container); - HashtableDebugProbeSummary summary = {}; - for (size_t i = 0; i < probes.size(); ++i) { - summary.total_elements += probes[i]; - summary.total_num_probes += probes[i] * i; - } - summary.mean = 1.0 * summary.total_num_probes / summary.total_elements; - return summary; -} - -// Returns the number of bytes requested from the allocator by the container -// and not freed. -template -size_t AllocatedByteSize(const C& c) { - return absl::container_internal::hashtable_debug_internal:: - HashtableDebugAccess::AllocatedByteSize(c); -} - -// Returns a tight lower bound for AllocatedByteSize(c) where `c` is of type `C` -// and `c.size()` is equal to `num_elements`. -template -size_t LowerBoundAllocatedByteSize(size_t num_elements) { - return absl::container_internal::hashtable_debug_internal:: - HashtableDebugAccess::LowerBoundAllocatedByteSize(num_elements); -} - -} // namespace container_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_CONTAINER_INTERNAL_HASHTABLE_DEBUG_H_ diff --git a/src/third_party/abseil-cpp/absl/container/internal/hashtable_debug_hooks.h b/src/third_party/abseil-cpp/absl/container/internal/hashtable_debug_hooks.h deleted file mode 100644 index 3e9ea5954e..0000000000 --- a/src/third_party/abseil-cpp/absl/container/internal/hashtable_debug_hooks.h +++ /dev/null @@ -1,85 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// Provides the internal API for hashtable_debug.h. - -#ifndef ABSL_CONTAINER_INTERNAL_HASHTABLE_DEBUG_HOOKS_H_ -#define ABSL_CONTAINER_INTERNAL_HASHTABLE_DEBUG_HOOKS_H_ - -#include - -#include -#include -#include - -#include "absl/base/config.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace container_internal { -namespace hashtable_debug_internal { - -// If it is a map, call get<0>(). -using std::get; -template -auto GetKey(const typename T::value_type& pair, int) -> decltype(get<0>(pair)) { - return get<0>(pair); -} - -// If it is not a map, return the value directly. -template -const typename T::key_type& GetKey(const typename T::key_type& key, char) { - return key; -} - -// Containers should specialize this to provide debug information for that -// container. -template -struct HashtableDebugAccess { - // Returns the number of probes required to find `key` in `c`. The "number of - // probes" is a concept that can vary by container. Implementations should - // return 0 when `key` was found in the minimum number of operations and - // should increment the result for each non-trivial operation required to find - // `key`. - // - // The default implementation uses the bucket api from the standard and thus - // works for `std::unordered_*` containers. - static size_t GetNumProbes(const Container& c, - const typename Container::key_type& key) { - if (!c.bucket_count()) return {}; - size_t num_probes = 0; - size_t bucket = c.bucket(key); - for (auto it = c.begin(bucket), e = c.end(bucket);; ++it, ++num_probes) { - if (it == e) return num_probes; - if (c.key_eq()(key, GetKey(*it, 0))) return num_probes; - } - } - - // Returns the number of bytes requested from the allocator by the container - // and not freed. - // - // static size_t AllocatedByteSize(const Container& c); - - // Returns a tight lower bound for AllocatedByteSize(c) where `c` is of type - // `Container` and `c.size()` is equal to `num_elements`. - // - // static size_t LowerBoundAllocatedByteSize(size_t num_elements); -}; - -} // namespace hashtable_debug_internal -} // namespace container_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_CONTAINER_INTERNAL_HASHTABLE_DEBUG_HOOKS_H_ diff --git a/src/third_party/abseil-cpp/absl/container/internal/hashtablez_sampler.cc b/src/third_party/abseil-cpp/absl/container/internal/hashtablez_sampler.cc deleted file mode 100644 index 6b6d349150..0000000000 --- a/src/third_party/abseil-cpp/absl/container/internal/hashtablez_sampler.cc +++ /dev/null @@ -1,283 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/container/internal/hashtablez_sampler.h" - -#include -#include -#include -#include -#include -#include - -#include "absl/base/attributes.h" -#include "absl/base/config.h" -#include "absl/debugging/stacktrace.h" -#include "absl/memory/memory.h" -#include "absl/profiling/internal/exponential_biased.h" -#include "absl/profiling/internal/sample_recorder.h" -#include "absl/synchronization/mutex.h" -#include "absl/utility/utility.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace container_internal { - -#ifdef ABSL_INTERNAL_NEED_REDUNDANT_CONSTEXPR_DECL -constexpr int HashtablezInfo::kMaxStackDepth; -#endif - -namespace { -ABSL_CONST_INIT std::atomic g_hashtablez_enabled{ - false -}; -ABSL_CONST_INIT std::atomic g_hashtablez_sample_parameter{1 << 10}; -std::atomic g_hashtablez_config_listener{nullptr}; - -#if defined(ABSL_INTERNAL_HASHTABLEZ_SAMPLE) -ABSL_PER_THREAD_TLS_KEYWORD absl::profiling_internal::ExponentialBiased - g_exponential_biased_generator; -#endif - -void TriggerHashtablezConfigListener() { - auto* listener = g_hashtablez_config_listener.load(std::memory_order_acquire); - if (listener != nullptr) listener(); -} - -} // namespace - -#if defined(ABSL_INTERNAL_HASHTABLEZ_SAMPLE) -ABSL_PER_THREAD_TLS_KEYWORD SamplingState global_next_sample = {0, 0}; -#endif // defined(ABSL_INTERNAL_HASHTABLEZ_SAMPLE) - -HashtablezSampler& GlobalHashtablezSampler() { - static auto* sampler = new HashtablezSampler(); - return *sampler; -} - -HashtablezInfo::HashtablezInfo() = default; -HashtablezInfo::~HashtablezInfo() = default; - -void HashtablezInfo::PrepareForSampling(int64_t stride, - size_t inline_element_size_value) { - capacity.store(0, std::memory_order_relaxed); - size.store(0, std::memory_order_relaxed); - num_erases.store(0, std::memory_order_relaxed); - num_rehashes.store(0, std::memory_order_relaxed); - max_probe_length.store(0, std::memory_order_relaxed); - total_probe_length.store(0, std::memory_order_relaxed); - hashes_bitwise_or.store(0, std::memory_order_relaxed); - hashes_bitwise_and.store(~size_t{}, std::memory_order_relaxed); - hashes_bitwise_xor.store(0, std::memory_order_relaxed); - max_reserve.store(0, std::memory_order_relaxed); - - create_time = absl::Now(); - weight = stride; - // The inliner makes hardcoded skip_count difficult (especially when combined - // with LTO). We use the ability to exclude stacks by regex when encoding - // instead. - depth = absl::GetStackTrace(stack, HashtablezInfo::kMaxStackDepth, - /* skip_count= */ 0); - inline_element_size = inline_element_size_value; -} - -static bool ShouldForceSampling() { - enum ForceState { - kDontForce, - kForce, - kUninitialized - }; - ABSL_CONST_INIT static std::atomic global_state{ - kUninitialized}; - ForceState state = global_state.load(std::memory_order_relaxed); - if (ABSL_PREDICT_TRUE(state == kDontForce)) return false; - - if (state == kUninitialized) { - state = ABSL_INTERNAL_C_SYMBOL(AbslContainerInternalSampleEverything)() - ? kForce - : kDontForce; - global_state.store(state, std::memory_order_relaxed); - } - return state == kForce; -} - -HashtablezInfo* SampleSlow(SamplingState& next_sample, - size_t inline_element_size) { - if (ABSL_PREDICT_FALSE(ShouldForceSampling())) { - next_sample.next_sample = 1; - const int64_t old_stride = exchange(next_sample.sample_stride, 1); - HashtablezInfo* result = - GlobalHashtablezSampler().Register(old_stride, inline_element_size); - return result; - } - -#if !defined(ABSL_INTERNAL_HASHTABLEZ_SAMPLE) - next_sample = { - std::numeric_limits::max(), - std::numeric_limits::max(), - }; - return nullptr; -#else - bool first = next_sample.next_sample < 0; - - const int64_t next_stride = g_exponential_biased_generator.GetStride( - g_hashtablez_sample_parameter.load(std::memory_order_relaxed)); - - next_sample.next_sample = next_stride; - const int64_t old_stride = exchange(next_sample.sample_stride, next_stride); - // Small values of interval are equivalent to just sampling next time. - ABSL_ASSERT(next_stride >= 1); - - // g_hashtablez_enabled can be dynamically flipped, we need to set a threshold - // low enough that we will start sampling in a reasonable time, so we just use - // the default sampling rate. - if (!g_hashtablez_enabled.load(std::memory_order_relaxed)) return nullptr; - - // We will only be negative on our first count, so we should just retry in - // that case. - if (first) { - if (ABSL_PREDICT_TRUE(--next_sample.next_sample > 0)) return nullptr; - return SampleSlow(next_sample, inline_element_size); - } - - return GlobalHashtablezSampler().Register(old_stride, inline_element_size); -#endif -} - -void UnsampleSlow(HashtablezInfo* info) { - GlobalHashtablezSampler().Unregister(info); -} - -void RecordRehashSlow(HashtablezInfo* info, size_t total_probe_length) { -#ifdef ABSL_INTERNAL_HAVE_SSE2 - total_probe_length /= 16; -#else - total_probe_length /= 8; -#endif - info->total_probe_length.store(total_probe_length, std::memory_order_relaxed); - info->num_erases.store(0, std::memory_order_relaxed); - // There is only one concurrent writer, so `load` then `store` is sufficient - // instead of using `fetch_add`. - info->num_rehashes.store( - 1 + info->num_rehashes.load(std::memory_order_relaxed), - std::memory_order_relaxed); -} - -void RecordReservationSlow(HashtablezInfo* info, size_t target_capacity) { - info->max_reserve.store( - (std::max)(info->max_reserve.load(std::memory_order_relaxed), - target_capacity), - std::memory_order_relaxed); -} - -void RecordClearedReservationSlow(HashtablezInfo* info) { - info->max_reserve.store(0, std::memory_order_relaxed); -} - -void RecordStorageChangedSlow(HashtablezInfo* info, size_t size, - size_t capacity) { - info->size.store(size, std::memory_order_relaxed); - info->capacity.store(capacity, std::memory_order_relaxed); - if (size == 0) { - // This is a clear, reset the total/num_erases too. - info->total_probe_length.store(0, std::memory_order_relaxed); - info->num_erases.store(0, std::memory_order_relaxed); - } -} - -void RecordInsertSlow(HashtablezInfo* info, size_t hash, - size_t distance_from_desired) { - // SwissTables probe in groups of 16, so scale this to count items probes and - // not offset from desired. - size_t probe_length = distance_from_desired; -#ifdef ABSL_INTERNAL_HAVE_SSE2 - probe_length /= 16; -#else - probe_length /= 8; -#endif - - info->hashes_bitwise_and.fetch_and(hash, std::memory_order_relaxed); - info->hashes_bitwise_or.fetch_or(hash, std::memory_order_relaxed); - info->hashes_bitwise_xor.fetch_xor(hash, std::memory_order_relaxed); - info->max_probe_length.store( - std::max(info->max_probe_length.load(std::memory_order_relaxed), - probe_length), - std::memory_order_relaxed); - info->total_probe_length.fetch_add(probe_length, std::memory_order_relaxed); - info->size.fetch_add(1, std::memory_order_relaxed); -} - -void RecordEraseSlow(HashtablezInfo* info) { - info->size.fetch_sub(1, std::memory_order_relaxed); - // There is only one concurrent writer, so `load` then `store` is sufficient - // instead of using `fetch_add`. - info->num_erases.store(1 + info->num_erases.load(std::memory_order_relaxed), - std::memory_order_relaxed); -} - -void SetHashtablezConfigListener(HashtablezConfigListener l) { - g_hashtablez_config_listener.store(l, std::memory_order_release); -} - -bool IsHashtablezEnabled() { - return g_hashtablez_enabled.load(std::memory_order_acquire); -} - -void SetHashtablezEnabled(bool enabled) { - SetHashtablezEnabledInternal(enabled); - TriggerHashtablezConfigListener(); -} - -void SetHashtablezEnabledInternal(bool enabled) { - g_hashtablez_enabled.store(enabled, std::memory_order_release); -} - -int32_t GetHashtablezSampleParameter() { - return g_hashtablez_sample_parameter.load(std::memory_order_acquire); -} - -void SetHashtablezSampleParameter(int32_t rate) { - SetHashtablezSampleParameterInternal(rate); - TriggerHashtablezConfigListener(); -} - -void SetHashtablezSampleParameterInternal(int32_t rate) { - if (rate > 0) { - g_hashtablez_sample_parameter.store(rate, std::memory_order_release); - } else { - ABSL_RAW_LOG(ERROR, "Invalid hashtablez sample rate: %lld", - static_cast(rate)); // NOLINT(runtime/int) - } -} - -size_t GetHashtablezMaxSamples() { - return GlobalHashtablezSampler().GetMaxSamples(); -} - -void SetHashtablezMaxSamples(size_t max) { - SetHashtablezMaxSamplesInternal(max); - TriggerHashtablezConfigListener(); -} - -void SetHashtablezMaxSamplesInternal(size_t max) { - if (max > 0) { - GlobalHashtablezSampler().SetMaxSamples(max); - } else { - ABSL_RAW_LOG(ERROR, "Invalid hashtablez max samples: 0"); - } -} - -} // namespace container_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/src/third_party/abseil-cpp/absl/container/internal/hashtablez_sampler.h b/src/third_party/abseil-cpp/absl/container/internal/hashtablez_sampler.h deleted file mode 100644 index d8fd8f34f9..0000000000 --- a/src/third_party/abseil-cpp/absl/container/internal/hashtablez_sampler.h +++ /dev/null @@ -1,267 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// ----------------------------------------------------------------------------- -// File: hashtablez_sampler.h -// ----------------------------------------------------------------------------- -// -// This header file defines the API for a low level library to sample hashtables -// and collect runtime statistics about them. -// -// `HashtablezSampler` controls the lifecycle of `HashtablezInfo` objects which -// store information about a single sample. -// -// `Record*` methods store information into samples. -// `Sample()` and `Unsample()` make use of a single global sampler with -// properties controlled by the flags hashtablez_enabled, -// hashtablez_sample_rate, and hashtablez_max_samples. -// -// WARNING -// -// Using this sampling API may cause sampled Swiss tables to use the global -// allocator (operator `new`) in addition to any custom allocator. If you -// are using a table in an unusual circumstance where allocation or calling a -// linux syscall is unacceptable, this could interfere. -// -// This utility is internal-only. Use at your own risk. - -#ifndef ABSL_CONTAINER_INTERNAL_HASHTABLEZ_SAMPLER_H_ -#define ABSL_CONTAINER_INTERNAL_HASHTABLEZ_SAMPLER_H_ - -#include -#include -#include -#include - -#include "absl/base/config.h" -#include "absl/base/internal/per_thread_tls.h" -#include "absl/base/optimization.h" -#include "absl/profiling/internal/sample_recorder.h" -#include "absl/synchronization/mutex.h" -#include "absl/utility/utility.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace container_internal { - -// Stores information about a sampled hashtable. All mutations to this *must* -// be made through `Record*` functions below. All reads from this *must* only -// occur in the callback to `HashtablezSampler::Iterate`. -struct HashtablezInfo : public profiling_internal::Sample { - // Constructs the object but does not fill in any fields. - HashtablezInfo(); - ~HashtablezInfo(); - HashtablezInfo(const HashtablezInfo&) = delete; - HashtablezInfo& operator=(const HashtablezInfo&) = delete; - - // Puts the object into a clean state, fills in the logically `const` members, - // blocking for any readers that are currently sampling the object. - void PrepareForSampling(int64_t stride, size_t inline_element_size_value) - ABSL_EXCLUSIVE_LOCKS_REQUIRED(init_mu); - - // These fields are mutated by the various Record* APIs and need to be - // thread-safe. - std::atomic capacity; - std::atomic size; - std::atomic num_erases; - std::atomic num_rehashes; - std::atomic max_probe_length; - std::atomic total_probe_length; - std::atomic hashes_bitwise_or; - std::atomic hashes_bitwise_and; - std::atomic hashes_bitwise_xor; - std::atomic max_reserve; - - // All of the fields below are set by `PrepareForSampling`, they must not be - // mutated in `Record*` functions. They are logically `const` in that sense. - // These are guarded by init_mu, but that is not externalized to clients, - // which can read them only during `SampleRecorder::Iterate` which will hold - // the lock. - static constexpr int kMaxStackDepth = 64; - absl::Time create_time; - int32_t depth; - void* stack[kMaxStackDepth]; - size_t inline_element_size; // How big is the slot? -}; - -void RecordRehashSlow(HashtablezInfo* info, size_t total_probe_length); - -void RecordReservationSlow(HashtablezInfo* info, size_t target_capacity); - -void RecordClearedReservationSlow(HashtablezInfo* info); - -void RecordStorageChangedSlow(HashtablezInfo* info, size_t size, - size_t capacity); - -void RecordInsertSlow(HashtablezInfo* info, size_t hash, - size_t distance_from_desired); - -void RecordEraseSlow(HashtablezInfo* info); - -struct SamplingState { - int64_t next_sample; - // When we make a sampling decision, we record that distance so we can weight - // each sample. - int64_t sample_stride; -}; - -HashtablezInfo* SampleSlow(SamplingState& next_sample, - size_t inline_element_size); -void UnsampleSlow(HashtablezInfo* info); - -#if defined(ABSL_INTERNAL_HASHTABLEZ_SAMPLE) -#error ABSL_INTERNAL_HASHTABLEZ_SAMPLE cannot be directly set -#endif // defined(ABSL_INTERNAL_HASHTABLEZ_SAMPLE) - -#if defined(ABSL_INTERNAL_HASHTABLEZ_SAMPLE) -class HashtablezInfoHandle { - public: - explicit HashtablezInfoHandle() : info_(nullptr) {} - explicit HashtablezInfoHandle(HashtablezInfo* info) : info_(info) {} - - // We do not have a destructor. Caller is responsible for calling Unregister - // before destroying the handle. - void Unregister() { - if (ABSL_PREDICT_TRUE(info_ == nullptr)) return; - UnsampleSlow(info_); - } - - HashtablezInfoHandle(const HashtablezInfoHandle&) = delete; - HashtablezInfoHandle& operator=(const HashtablezInfoHandle&) = delete; - - HashtablezInfoHandle(HashtablezInfoHandle&& o) noexcept - : info_(absl::exchange(o.info_, nullptr)) {} - HashtablezInfoHandle& operator=(HashtablezInfoHandle&& o) noexcept { - if (ABSL_PREDICT_FALSE(info_ != nullptr)) { - UnsampleSlow(info_); - } - info_ = absl::exchange(o.info_, nullptr); - return *this; - } - - inline void RecordStorageChanged(size_t size, size_t capacity) { - if (ABSL_PREDICT_TRUE(info_ == nullptr)) return; - RecordStorageChangedSlow(info_, size, capacity); - } - - inline void RecordRehash(size_t total_probe_length) { - if (ABSL_PREDICT_TRUE(info_ == nullptr)) return; - RecordRehashSlow(info_, total_probe_length); - } - - inline void RecordReservation(size_t target_capacity) { - if (ABSL_PREDICT_TRUE(info_ == nullptr)) return; - RecordReservationSlow(info_, target_capacity); - } - - inline void RecordClearedReservation() { - if (ABSL_PREDICT_TRUE(info_ == nullptr)) return; - RecordClearedReservationSlow(info_); - } - - inline void RecordInsert(size_t hash, size_t distance_from_desired) { - if (ABSL_PREDICT_TRUE(info_ == nullptr)) return; - RecordInsertSlow(info_, hash, distance_from_desired); - } - - inline void RecordErase() { - if (ABSL_PREDICT_TRUE(info_ == nullptr)) return; - RecordEraseSlow(info_); - } - - friend inline void swap(HashtablezInfoHandle& lhs, - HashtablezInfoHandle& rhs) { - std::swap(lhs.info_, rhs.info_); - } - - private: - friend class HashtablezInfoHandlePeer; - HashtablezInfo* info_; -}; -#else -// Ensure that when Hashtablez is turned off at compile time, HashtablezInfo can -// be removed by the linker, in order to reduce the binary size. -class HashtablezInfoHandle { - public: - explicit HashtablezInfoHandle() = default; - explicit HashtablezInfoHandle(std::nullptr_t) {} - - inline void Unregister() {} - inline void RecordStorageChanged(size_t /*size*/, size_t /*capacity*/) {} - inline void RecordRehash(size_t /*total_probe_length*/) {} - inline void RecordReservation(size_t /*target_capacity*/) {} - inline void RecordClearedReservation() {} - inline void RecordInsert(size_t /*hash*/, size_t /*distance_from_desired*/) {} - inline void RecordErase() {} - - friend inline void swap(HashtablezInfoHandle& /*lhs*/, - HashtablezInfoHandle& /*rhs*/) {} -}; -#endif // defined(ABSL_INTERNAL_HASHTABLEZ_SAMPLE) - -#if defined(ABSL_INTERNAL_HASHTABLEZ_SAMPLE) -extern ABSL_PER_THREAD_TLS_KEYWORD SamplingState global_next_sample; -#endif // defined(ABSL_INTERNAL_HASHTABLEZ_SAMPLE) - -// Returns an RAII sampling handle that manages registration and unregistation -// with the global sampler. -inline HashtablezInfoHandle Sample( - size_t inline_element_size ABSL_ATTRIBUTE_UNUSED) { -#if defined(ABSL_INTERNAL_HASHTABLEZ_SAMPLE) - if (ABSL_PREDICT_TRUE(--global_next_sample.next_sample > 0)) { - return HashtablezInfoHandle(nullptr); - } - return HashtablezInfoHandle( - SampleSlow(global_next_sample, inline_element_size)); -#else - return HashtablezInfoHandle(nullptr); -#endif // !ABSL_PER_THREAD_TLS -} - -using HashtablezSampler = - ::absl::profiling_internal::SampleRecorder; - -// Returns a global Sampler. -HashtablezSampler& GlobalHashtablezSampler(); - -using HashtablezConfigListener = void (*)(); -void SetHashtablezConfigListener(HashtablezConfigListener l); - -// Enables or disables sampling for Swiss tables. -bool IsHashtablezEnabled(); -void SetHashtablezEnabled(bool enabled); -void SetHashtablezEnabledInternal(bool enabled); - -// Sets the rate at which Swiss tables will be sampled. -int32_t GetHashtablezSampleParameter(); -void SetHashtablezSampleParameter(int32_t rate); -void SetHashtablezSampleParameterInternal(int32_t rate); - -// Sets a soft max for the number of samples that will be kept. -size_t GetHashtablezMaxSamples(); -void SetHashtablezMaxSamples(size_t max); -void SetHashtablezMaxSamplesInternal(size_t max); - -// Configuration override. -// This allows process-wide sampling without depending on order of -// initialization of static storage duration objects. -// The definition of this constant is weak, which allows us to inject a -// different value for it at link time. -extern "C" bool ABSL_INTERNAL_C_SYMBOL(AbslContainerInternalSampleEverything)(); - -} // namespace container_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_CONTAINER_INTERNAL_HASHTABLEZ_SAMPLER_H_ diff --git a/src/third_party/abseil-cpp/absl/container/internal/hashtablez_sampler_force_weak_definition.cc b/src/third_party/abseil-cpp/absl/container/internal/hashtablez_sampler_force_weak_definition.cc deleted file mode 100644 index ed35a7eec3..0000000000 --- a/src/third_party/abseil-cpp/absl/container/internal/hashtablez_sampler_force_weak_definition.cc +++ /dev/null @@ -1,31 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/container/internal/hashtablez_sampler.h" - -#include "absl/base/attributes.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace container_internal { - -// See hashtablez_sampler.h for details. -extern "C" ABSL_ATTRIBUTE_WEAK bool ABSL_INTERNAL_C_SYMBOL( - AbslContainerInternalSampleEverything)() { - return false; -} - -} // namespace container_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/src/third_party/abseil-cpp/absl/container/internal/hashtablez_sampler_test.cc b/src/third_party/abseil-cpp/absl/container/internal/hashtablez_sampler_test.cc deleted file mode 100644 index 665d518fc7..0000000000 --- a/src/third_party/abseil-cpp/absl/container/internal/hashtablez_sampler_test.cc +++ /dev/null @@ -1,428 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/container/internal/hashtablez_sampler.h" - -#include -#include -#include - -#include "gmock/gmock.h" -#include "gtest/gtest.h" -#include "absl/base/attributes.h" -#include "absl/base/config.h" -#include "absl/profiling/internal/sample_recorder.h" -#include "absl/synchronization/blocking_counter.h" -#include "absl/synchronization/internal/thread_pool.h" -#include "absl/synchronization/mutex.h" -#include "absl/synchronization/notification.h" -#include "absl/time/clock.h" -#include "absl/time/time.h" - -#ifdef ABSL_INTERNAL_HAVE_SSE2 -constexpr int kProbeLength = 16; -#else -constexpr int kProbeLength = 8; -#endif - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace container_internal { -#if defined(ABSL_INTERNAL_HASHTABLEZ_SAMPLE) -class HashtablezInfoHandlePeer { - public: - static bool IsSampled(const HashtablezInfoHandle& h) { - return h.info_ != nullptr; - } - - static HashtablezInfo* GetInfo(HashtablezInfoHandle* h) { return h->info_; } -}; -#else -class HashtablezInfoHandlePeer { - public: - static bool IsSampled(const HashtablezInfoHandle&) { return false; } - static HashtablezInfo* GetInfo(HashtablezInfoHandle*) { return nullptr; } -}; -#endif // defined(ABSL_INTERNAL_HASHTABLEZ_SAMPLE) - -namespace { -using ::absl::synchronization_internal::ThreadPool; -using ::testing::IsEmpty; -using ::testing::UnorderedElementsAre; - -std::vector GetSizes(HashtablezSampler* s) { - std::vector res; - s->Iterate([&](const HashtablezInfo& info) { - res.push_back(info.size.load(std::memory_order_acquire)); - }); - return res; -} - -HashtablezInfo* Register(HashtablezSampler* s, size_t size) { - const int64_t test_stride = 123; - const size_t test_element_size = 17; - auto* info = s->Register(test_stride, test_element_size); - assert(info != nullptr); - info->size.store(size); - return info; -} - -TEST(HashtablezInfoTest, PrepareForSampling) { - absl::Time test_start = absl::Now(); - const int64_t test_stride = 123; - const size_t test_element_size = 17; - HashtablezInfo info; - absl::MutexLock l(&info.init_mu); - info.PrepareForSampling(test_stride, test_element_size); - - EXPECT_EQ(info.capacity.load(), 0); - EXPECT_EQ(info.size.load(), 0); - EXPECT_EQ(info.num_erases.load(), 0); - EXPECT_EQ(info.num_rehashes.load(), 0); - EXPECT_EQ(info.max_probe_length.load(), 0); - EXPECT_EQ(info.total_probe_length.load(), 0); - EXPECT_EQ(info.hashes_bitwise_or.load(), 0); - EXPECT_EQ(info.hashes_bitwise_and.load(), ~size_t{}); - EXPECT_EQ(info.hashes_bitwise_xor.load(), 0); - EXPECT_EQ(info.max_reserve.load(), 0); - EXPECT_GE(info.create_time, test_start); - EXPECT_EQ(info.weight, test_stride); - EXPECT_EQ(info.inline_element_size, test_element_size); - - info.capacity.store(1, std::memory_order_relaxed); - info.size.store(1, std::memory_order_relaxed); - info.num_erases.store(1, std::memory_order_relaxed); - info.max_probe_length.store(1, std::memory_order_relaxed); - info.total_probe_length.store(1, std::memory_order_relaxed); - info.hashes_bitwise_or.store(1, std::memory_order_relaxed); - info.hashes_bitwise_and.store(1, std::memory_order_relaxed); - info.hashes_bitwise_xor.store(1, std::memory_order_relaxed); - info.max_reserve.store(1, std::memory_order_relaxed); - info.create_time = test_start - absl::Hours(20); - - info.PrepareForSampling(test_stride * 2, test_element_size); - EXPECT_EQ(info.capacity.load(), 0); - EXPECT_EQ(info.size.load(), 0); - EXPECT_EQ(info.num_erases.load(), 0); - EXPECT_EQ(info.num_rehashes.load(), 0); - EXPECT_EQ(info.max_probe_length.load(), 0); - EXPECT_EQ(info.total_probe_length.load(), 0); - EXPECT_EQ(info.hashes_bitwise_or.load(), 0); - EXPECT_EQ(info.hashes_bitwise_and.load(), ~size_t{}); - EXPECT_EQ(info.hashes_bitwise_xor.load(), 0); - EXPECT_EQ(info.max_reserve.load(), 0); - EXPECT_EQ(info.weight, 2 * test_stride); - EXPECT_EQ(info.inline_element_size, test_element_size); - EXPECT_GE(info.create_time, test_start); -} - -TEST(HashtablezInfoTest, RecordStorageChanged) { - HashtablezInfo info; - absl::MutexLock l(&info.init_mu); - const int64_t test_stride = 21; - const size_t test_element_size = 19; - info.PrepareForSampling(test_stride, test_element_size); - RecordStorageChangedSlow(&info, 17, 47); - EXPECT_EQ(info.size.load(), 17); - EXPECT_EQ(info.capacity.load(), 47); - RecordStorageChangedSlow(&info, 20, 20); - EXPECT_EQ(info.size.load(), 20); - EXPECT_EQ(info.capacity.load(), 20); -} - -TEST(HashtablezInfoTest, RecordInsert) { - HashtablezInfo info; - absl::MutexLock l(&info.init_mu); - const int64_t test_stride = 25; - const size_t test_element_size = 23; - info.PrepareForSampling(test_stride, test_element_size); - EXPECT_EQ(info.max_probe_length.load(), 0); - RecordInsertSlow(&info, 0x0000FF00, 6 * kProbeLength); - EXPECT_EQ(info.max_probe_length.load(), 6); - EXPECT_EQ(info.hashes_bitwise_and.load(), 0x0000FF00); - EXPECT_EQ(info.hashes_bitwise_or.load(), 0x0000FF00); - EXPECT_EQ(info.hashes_bitwise_xor.load(), 0x0000FF00); - RecordInsertSlow(&info, 0x000FF000, 4 * kProbeLength); - EXPECT_EQ(info.max_probe_length.load(), 6); - EXPECT_EQ(info.hashes_bitwise_and.load(), 0x0000F000); - EXPECT_EQ(info.hashes_bitwise_or.load(), 0x000FFF00); - EXPECT_EQ(info.hashes_bitwise_xor.load(), 0x000F0F00); - RecordInsertSlow(&info, 0x00FF0000, 12 * kProbeLength); - EXPECT_EQ(info.max_probe_length.load(), 12); - EXPECT_EQ(info.hashes_bitwise_and.load(), 0x00000000); - EXPECT_EQ(info.hashes_bitwise_or.load(), 0x00FFFF00); - EXPECT_EQ(info.hashes_bitwise_xor.load(), 0x00F00F00); -} - -TEST(HashtablezInfoTest, RecordErase) { - const int64_t test_stride = 31; - const size_t test_element_size = 29; - HashtablezInfo info; - absl::MutexLock l(&info.init_mu); - info.PrepareForSampling(test_stride, test_element_size); - EXPECT_EQ(info.num_erases.load(), 0); - EXPECT_EQ(info.size.load(), 0); - RecordInsertSlow(&info, 0x0000FF00, 6 * kProbeLength); - EXPECT_EQ(info.size.load(), 1); - RecordEraseSlow(&info); - EXPECT_EQ(info.size.load(), 0); - EXPECT_EQ(info.num_erases.load(), 1); - EXPECT_EQ(info.inline_element_size, test_element_size); -} - -TEST(HashtablezInfoTest, RecordRehash) { - const int64_t test_stride = 33; - const size_t test_element_size = 31; - HashtablezInfo info; - absl::MutexLock l(&info.init_mu); - info.PrepareForSampling(test_stride, test_element_size); - RecordInsertSlow(&info, 0x1, 0); - RecordInsertSlow(&info, 0x2, kProbeLength); - RecordInsertSlow(&info, 0x4, kProbeLength); - RecordInsertSlow(&info, 0x8, 2 * kProbeLength); - EXPECT_EQ(info.size.load(), 4); - EXPECT_EQ(info.total_probe_length.load(), 4); - - RecordEraseSlow(&info); - RecordEraseSlow(&info); - EXPECT_EQ(info.size.load(), 2); - EXPECT_EQ(info.total_probe_length.load(), 4); - EXPECT_EQ(info.num_erases.load(), 2); - - RecordRehashSlow(&info, 3 * kProbeLength); - EXPECT_EQ(info.size.load(), 2); - EXPECT_EQ(info.total_probe_length.load(), 3); - EXPECT_EQ(info.num_erases.load(), 0); - EXPECT_EQ(info.num_rehashes.load(), 1); - EXPECT_EQ(info.inline_element_size, test_element_size); -} - -TEST(HashtablezInfoTest, RecordReservation) { - HashtablezInfo info; - absl::MutexLock l(&info.init_mu); - const int64_t test_stride = 35; - const size_t test_element_size = 33; - info.PrepareForSampling(test_stride, test_element_size); - RecordReservationSlow(&info, 3); - EXPECT_EQ(info.max_reserve.load(), 3); - - RecordReservationSlow(&info, 2); - // High watermark does not change - EXPECT_EQ(info.max_reserve.load(), 3); - - RecordReservationSlow(&info, 10); - // High watermark does change - EXPECT_EQ(info.max_reserve.load(), 10); -} - -#if defined(ABSL_INTERNAL_HASHTABLEZ_SAMPLE) -TEST(HashtablezSamplerTest, SmallSampleParameter) { - const size_t test_element_size = 31; - SetHashtablezEnabled(true); - SetHashtablezSampleParameter(100); - - for (int i = 0; i < 1000; ++i) { - SamplingState next_sample = {0, 0}; - HashtablezInfo* sample = SampleSlow(next_sample, test_element_size); - EXPECT_GT(next_sample.next_sample, 0); - EXPECT_EQ(next_sample.next_sample, next_sample.sample_stride); - EXPECT_NE(sample, nullptr); - UnsampleSlow(sample); - } -} - -TEST(HashtablezSamplerTest, LargeSampleParameter) { - const size_t test_element_size = 31; - SetHashtablezEnabled(true); - SetHashtablezSampleParameter(std::numeric_limits::max()); - - for (int i = 0; i < 1000; ++i) { - SamplingState next_sample = {0, 0}; - HashtablezInfo* sample = SampleSlow(next_sample, test_element_size); - EXPECT_GT(next_sample.next_sample, 0); - EXPECT_EQ(next_sample.next_sample, next_sample.sample_stride); - EXPECT_NE(sample, nullptr); - UnsampleSlow(sample); - } -} - -TEST(HashtablezSamplerTest, Sample) { - const size_t test_element_size = 31; - SetHashtablezEnabled(true); - SetHashtablezSampleParameter(100); - int64_t num_sampled = 0; - int64_t total = 0; - double sample_rate = 0.0; - for (int i = 0; i < 1000000; ++i) { - HashtablezInfoHandle h = Sample(test_element_size); - ++total; - if (HashtablezInfoHandlePeer::IsSampled(h)) { - ++num_sampled; - } - sample_rate = static_cast(num_sampled) / total; - if (0.005 < sample_rate && sample_rate < 0.015) break; - } - EXPECT_NEAR(sample_rate, 0.01, 0.005); -} - -TEST(HashtablezSamplerTest, Handle) { - auto& sampler = GlobalHashtablezSampler(); - const int64_t test_stride = 41; - const size_t test_element_size = 39; - HashtablezInfoHandle h(sampler.Register(test_stride, test_element_size)); - auto* info = HashtablezInfoHandlePeer::GetInfo(&h); - info->hashes_bitwise_and.store(0x12345678, std::memory_order_relaxed); - - bool found = false; - sampler.Iterate([&](const HashtablezInfo& h) { - if (&h == info) { - EXPECT_EQ(h.weight, test_stride); - EXPECT_EQ(h.hashes_bitwise_and.load(), 0x12345678); - found = true; - } - }); - EXPECT_TRUE(found); - - h = HashtablezInfoHandle(); - found = false; - sampler.Iterate([&](const HashtablezInfo& h) { - if (&h == info) { - // this will only happen if some other thread has resurrected the info - // the old handle was using. - if (h.hashes_bitwise_and.load() == 0x12345678) { - found = true; - } - } - }); - EXPECT_FALSE(found); -} -#endif - - -TEST(HashtablezSamplerTest, Registration) { - HashtablezSampler sampler; - auto* info1 = Register(&sampler, 1); - EXPECT_THAT(GetSizes(&sampler), UnorderedElementsAre(1)); - - auto* info2 = Register(&sampler, 2); - EXPECT_THAT(GetSizes(&sampler), UnorderedElementsAre(1, 2)); - info1->size.store(3); - EXPECT_THAT(GetSizes(&sampler), UnorderedElementsAre(3, 2)); - - sampler.Unregister(info1); - sampler.Unregister(info2); -} - -TEST(HashtablezSamplerTest, Unregistration) { - HashtablezSampler sampler; - std::vector infos; - for (size_t i = 0; i < 3; ++i) { - infos.push_back(Register(&sampler, i)); - } - EXPECT_THAT(GetSizes(&sampler), UnorderedElementsAre(0, 1, 2)); - - sampler.Unregister(infos[1]); - EXPECT_THAT(GetSizes(&sampler), UnorderedElementsAre(0, 2)); - - infos.push_back(Register(&sampler, 3)); - infos.push_back(Register(&sampler, 4)); - EXPECT_THAT(GetSizes(&sampler), UnorderedElementsAre(0, 2, 3, 4)); - sampler.Unregister(infos[3]); - EXPECT_THAT(GetSizes(&sampler), UnorderedElementsAre(0, 2, 4)); - - sampler.Unregister(infos[0]); - sampler.Unregister(infos[2]); - sampler.Unregister(infos[4]); - EXPECT_THAT(GetSizes(&sampler), IsEmpty()); -} - -TEST(HashtablezSamplerTest, MultiThreaded) { - HashtablezSampler sampler; - Notification stop; - ThreadPool pool(10); - - for (int i = 0; i < 10; ++i) { - const int64_t sampling_stride = 11 + i % 3; - const size_t elt_size = 10 + i % 2; - pool.Schedule([&sampler, &stop, sampling_stride, elt_size]() { - std::random_device rd; - std::mt19937 gen(rd()); - - std::vector infoz; - while (!stop.HasBeenNotified()) { - if (infoz.empty()) { - infoz.push_back(sampler.Register(sampling_stride, elt_size)); - } - switch (std::uniform_int_distribution<>(0, 2)(gen)) { - case 0: { - infoz.push_back(sampler.Register(sampling_stride, elt_size)); - break; - } - case 1: { - size_t p = - std::uniform_int_distribution<>(0, infoz.size() - 1)(gen); - HashtablezInfo* info = infoz[p]; - infoz[p] = infoz.back(); - infoz.pop_back(); - EXPECT_EQ(info->weight, sampling_stride); - sampler.Unregister(info); - break; - } - case 2: { - absl::Duration oldest = absl::ZeroDuration(); - sampler.Iterate([&](const HashtablezInfo& info) { - oldest = std::max(oldest, absl::Now() - info.create_time); - }); - ASSERT_GE(oldest, absl::ZeroDuration()); - break; - } - } - } - }); - } - // The threads will hammer away. Give it a little bit of time for tsan to - // spot errors. - absl::SleepFor(absl::Seconds(3)); - stop.Notify(); -} - -TEST(HashtablezSamplerTest, Callback) { - HashtablezSampler sampler; - - auto* info1 = Register(&sampler, 1); - auto* info2 = Register(&sampler, 2); - - static const HashtablezInfo* expected; - - auto callback = [](const HashtablezInfo& info) { - // We can't use `info` outside of this callback because the object will be - // disposed as soon as we return from here. - EXPECT_EQ(&info, expected); - }; - - // Set the callback. - EXPECT_EQ(sampler.SetDisposeCallback(callback), nullptr); - expected = info1; - sampler.Unregister(info1); - - // Unset the callback. - EXPECT_EQ(callback, sampler.SetDisposeCallback(nullptr)); - expected = nullptr; // no more calls. - sampler.Unregister(info2); -} - -} // namespace -} // namespace container_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/src/third_party/abseil-cpp/absl/container/internal/inlined_vector.h b/src/third_party/abseil-cpp/absl/container/internal/inlined_vector.h deleted file mode 100644 index 0398f53008..0000000000 --- a/src/third_party/abseil-cpp/absl/container/internal/inlined_vector.h +++ /dev/null @@ -1,1031 +0,0 @@ -// Copyright 2019 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#ifndef ABSL_CONTAINER_INTERNAL_INLINED_VECTOR_H_ -#define ABSL_CONTAINER_INTERNAL_INLINED_VECTOR_H_ - -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "absl/base/attributes.h" -#include "absl/base/macros.h" -#include "absl/container/internal/compressed_tuple.h" -#include "absl/memory/memory.h" -#include "absl/meta/type_traits.h" -#include "absl/types/span.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace inlined_vector_internal { - -// GCC does not deal very well with the below code -#if !defined(__clang__) && defined(__GNUC__) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Warray-bounds" -#endif - -template -using AllocatorTraits = std::allocator_traits; -template -using ValueType = typename AllocatorTraits::value_type; -template -using SizeType = typename AllocatorTraits::size_type; -template -using Pointer = typename AllocatorTraits::pointer; -template -using ConstPointer = typename AllocatorTraits::const_pointer; -template -using SizeType = typename AllocatorTraits::size_type; -template -using DifferenceType = typename AllocatorTraits::difference_type; -template -using Reference = ValueType&; -template -using ConstReference = const ValueType&; -template -using Iterator = Pointer; -template -using ConstIterator = ConstPointer; -template -using ReverseIterator = typename std::reverse_iterator>; -template -using ConstReverseIterator = typename std::reverse_iterator>; -template -using MoveIterator = typename std::move_iterator>; - -template -using IsAtLeastForwardIterator = std::is_convertible< - typename std::iterator_traits::iterator_category, - std::forward_iterator_tag>; - -template -using IsMemcpyOk = - absl::conjunction>>, - absl::is_trivially_copy_constructible>, - absl::is_trivially_copy_assignable>, - absl::is_trivially_destructible>>; - -template -using IsMoveAssignOk = std::is_move_assignable>; -template -using IsSwapOk = absl::type_traits_internal::IsSwappable>; - -template -struct TypeIdentity { - using type = T; -}; - -// Used for function arguments in template functions to prevent ADL by forcing -// callers to explicitly specify the template parameter. -template -using NoTypeDeduction = typename TypeIdentity::type; - -template >::value> -struct DestroyAdapter; - -template -struct DestroyAdapter { - static void DestroyElements(A& allocator, Pointer destroy_first, - SizeType destroy_size) { - for (SizeType i = destroy_size; i != 0;) { - --i; - AllocatorTraits::destroy(allocator, destroy_first + i); - } - } -}; - -template -struct DestroyAdapter { - static void DestroyElements(A& allocator, Pointer destroy_first, - SizeType destroy_size) { - static_cast(allocator); - static_cast(destroy_first); - static_cast(destroy_size); - } -}; - -template -struct Allocation { - Pointer data = nullptr; - SizeType capacity = 0; -}; - -template ) > ABSL_INTERNAL_DEFAULT_NEW_ALIGNMENT)> -struct MallocAdapter { - static Allocation Allocate(A& allocator, SizeType requested_capacity) { - return {AllocatorTraits::allocate(allocator, requested_capacity), - requested_capacity}; - } - - static void Deallocate(A& allocator, Pointer pointer, - SizeType capacity) { - AllocatorTraits::deallocate(allocator, pointer, capacity); - } -}; - -template -void ConstructElements(NoTypeDeduction& allocator, - Pointer construct_first, ValueAdapter& values, - SizeType construct_size) { - for (SizeType i = 0; i < construct_size; ++i) { - ABSL_INTERNAL_TRY { values.ConstructNext(allocator, construct_first + i); } - ABSL_INTERNAL_CATCH_ANY { - DestroyAdapter::DestroyElements(allocator, construct_first, i); - ABSL_INTERNAL_RETHROW; - } - } -} - -template -void AssignElements(Pointer assign_first, ValueAdapter& values, - SizeType assign_size) { - for (SizeType i = 0; i < assign_size; ++i) { - values.AssignNext(assign_first + i); - } -} - -template -struct StorageView { - Pointer data; - SizeType size; - SizeType capacity; -}; - -template -class IteratorValueAdapter { - public: - explicit IteratorValueAdapter(const Iterator& it) : it_(it) {} - - void ConstructNext(A& allocator, Pointer construct_at) { - AllocatorTraits::construct(allocator, construct_at, *it_); - ++it_; - } - - void AssignNext(Pointer assign_at) { - *assign_at = *it_; - ++it_; - } - - private: - Iterator it_; -}; - -template -class CopyValueAdapter { - public: - explicit CopyValueAdapter(ConstPointer p) : ptr_(p) {} - - void ConstructNext(A& allocator, Pointer construct_at) { - AllocatorTraits::construct(allocator, construct_at, *ptr_); - } - - void AssignNext(Pointer assign_at) { *assign_at = *ptr_; } - - private: - ConstPointer ptr_; -}; - -template -class DefaultValueAdapter { - public: - explicit DefaultValueAdapter() {} - - void ConstructNext(A& allocator, Pointer construct_at) { - AllocatorTraits::construct(allocator, construct_at); - } - - void AssignNext(Pointer assign_at) { *assign_at = ValueType(); } -}; - -template -class AllocationTransaction { - public: - explicit AllocationTransaction(A& allocator) - : allocator_data_(allocator, nullptr), capacity_(0) {} - - ~AllocationTransaction() { - if (DidAllocate()) { - MallocAdapter::Deallocate(GetAllocator(), GetData(), GetCapacity()); - } - } - - AllocationTransaction(const AllocationTransaction&) = delete; - void operator=(const AllocationTransaction&) = delete; - - A& GetAllocator() { return allocator_data_.template get<0>(); } - Pointer& GetData() { return allocator_data_.template get<1>(); } - SizeType& GetCapacity() { return capacity_; } - - bool DidAllocate() { return GetData() != nullptr; } - - Pointer Allocate(SizeType requested_capacity) { - Allocation result = - MallocAdapter::Allocate(GetAllocator(), requested_capacity); - GetData() = result.data; - GetCapacity() = result.capacity; - return result.data; - } - - ABSL_MUST_USE_RESULT Allocation Release() && { - Allocation result = {GetData(), GetCapacity()}; - Reset(); - return result; - } - - private: - void Reset() { - GetData() = nullptr; - GetCapacity() = 0; - } - - container_internal::CompressedTuple> allocator_data_; - SizeType capacity_; -}; - -template -class ConstructionTransaction { - public: - explicit ConstructionTransaction(A& allocator) - : allocator_data_(allocator, nullptr), size_(0) {} - - ~ConstructionTransaction() { - if (DidConstruct()) { - DestroyAdapter::DestroyElements(GetAllocator(), GetData(), GetSize()); - } - } - - ConstructionTransaction(const ConstructionTransaction&) = delete; - void operator=(const ConstructionTransaction&) = delete; - - A& GetAllocator() { return allocator_data_.template get<0>(); } - Pointer& GetData() { return allocator_data_.template get<1>(); } - SizeType& GetSize() { return size_; } - - bool DidConstruct() { return GetData() != nullptr; } - template - void Construct(Pointer data, ValueAdapter& values, SizeType size) { - ConstructElements(GetAllocator(), data, values, size); - GetData() = data; - GetSize() = size; - } - void Commit() && { - GetData() = nullptr; - GetSize() = 0; - } - - private: - container_internal::CompressedTuple> allocator_data_; - SizeType size_; -}; - -template -class Storage { - public: - struct MemcpyPolicy {}; - struct ElementwiseAssignPolicy {}; - struct ElementwiseSwapPolicy {}; - struct ElementwiseConstructPolicy {}; - - using MoveAssignmentPolicy = absl::conditional_t< - IsMemcpyOk::value, MemcpyPolicy, - absl::conditional_t::value, ElementwiseAssignPolicy, - ElementwiseConstructPolicy>>; - using SwapPolicy = absl::conditional_t< - IsMemcpyOk::value, MemcpyPolicy, - absl::conditional_t::value, ElementwiseSwapPolicy, - ElementwiseConstructPolicy>>; - - static SizeType NextCapacity(SizeType current_capacity) { - return current_capacity * 2; - } - - static SizeType ComputeCapacity(SizeType current_capacity, - SizeType requested_capacity) { - return (std::max)(NextCapacity(current_capacity), requested_capacity); - } - - // --------------------------------------------------------------------------- - // Storage Constructors and Destructor - // --------------------------------------------------------------------------- - - Storage() : metadata_(A(), /* size and is_allocated */ 0u) {} - - explicit Storage(const A& allocator) - : metadata_(allocator, /* size and is_allocated */ 0u) {} - - ~Storage() { - if (GetSizeAndIsAllocated() == 0) { - // Empty and not allocated; nothing to do. - } else if (IsMemcpyOk::value) { - // No destructors need to be run; just deallocate if necessary. - DeallocateIfAllocated(); - } else { - DestroyContents(); - } - } - - // --------------------------------------------------------------------------- - // Storage Member Accessors - // --------------------------------------------------------------------------- - - SizeType& GetSizeAndIsAllocated() { return metadata_.template get<1>(); } - - const SizeType& GetSizeAndIsAllocated() const { - return metadata_.template get<1>(); - } - - SizeType GetSize() const { return GetSizeAndIsAllocated() >> 1; } - - bool GetIsAllocated() const { return GetSizeAndIsAllocated() & 1; } - - Pointer GetAllocatedData() { return data_.allocated.allocated_data; } - - ConstPointer GetAllocatedData() const { - return data_.allocated.allocated_data; - } - - Pointer GetInlinedData() { - return reinterpret_cast>( - std::addressof(data_.inlined.inlined_data[0])); - } - - ConstPointer GetInlinedData() const { - return reinterpret_cast>( - std::addressof(data_.inlined.inlined_data[0])); - } - - SizeType GetAllocatedCapacity() const { - return data_.allocated.allocated_capacity; - } - - SizeType GetInlinedCapacity() const { - return static_cast>(kOptimalInlinedSize); - } - - StorageView MakeStorageView() { - return GetIsAllocated() ? StorageView{GetAllocatedData(), GetSize(), - GetAllocatedCapacity()} - : StorageView{GetInlinedData(), GetSize(), - GetInlinedCapacity()}; - } - - A& GetAllocator() { return metadata_.template get<0>(); } - - const A& GetAllocator() const { return metadata_.template get<0>(); } - - // --------------------------------------------------------------------------- - // Storage Member Mutators - // --------------------------------------------------------------------------- - - ABSL_ATTRIBUTE_NOINLINE void InitFrom(const Storage& other); - - template - void Initialize(ValueAdapter values, SizeType new_size); - - template - void Assign(ValueAdapter values, SizeType new_size); - - template - void Resize(ValueAdapter values, SizeType new_size); - - template - Iterator Insert(ConstIterator pos, ValueAdapter values, - SizeType insert_count); - - template - Reference EmplaceBack(Args&&... args); - - Iterator Erase(ConstIterator from, ConstIterator to); - - void Reserve(SizeType requested_capacity); - - void ShrinkToFit(); - - void Swap(Storage* other_storage_ptr); - - void SetIsAllocated() { - GetSizeAndIsAllocated() |= static_cast>(1); - } - - void UnsetIsAllocated() { - GetSizeAndIsAllocated() &= ((std::numeric_limits>::max)() - 1); - } - - void SetSize(SizeType size) { - GetSizeAndIsAllocated() = - (size << 1) | static_cast>(GetIsAllocated()); - } - - void SetAllocatedSize(SizeType size) { - GetSizeAndIsAllocated() = (size << 1) | static_cast>(1); - } - - void SetInlinedSize(SizeType size) { - GetSizeAndIsAllocated() = size << static_cast>(1); - } - - void AddSize(SizeType count) { - GetSizeAndIsAllocated() += count << static_cast>(1); - } - - void SubtractSize(SizeType count) { - ABSL_HARDENING_ASSERT(count <= GetSize()); - - GetSizeAndIsAllocated() -= count << static_cast>(1); - } - - void SetAllocation(Allocation allocation) { - data_.allocated.allocated_data = allocation.data; - data_.allocated.allocated_capacity = allocation.capacity; - } - - void MemcpyFrom(const Storage& other_storage) { - ABSL_HARDENING_ASSERT(IsMemcpyOk::value || - other_storage.GetIsAllocated()); - - GetSizeAndIsAllocated() = other_storage.GetSizeAndIsAllocated(); - data_ = other_storage.data_; - } - - void DeallocateIfAllocated() { - if (GetIsAllocated()) { - MallocAdapter::Deallocate(GetAllocator(), GetAllocatedData(), - GetAllocatedCapacity()); - } - } - - private: - ABSL_ATTRIBUTE_NOINLINE void DestroyContents(); - - using Metadata = container_internal::CompressedTuple>; - - struct Allocated { - Pointer allocated_data; - SizeType allocated_capacity; - }; - - // `kOptimalInlinedSize` is an automatically adjusted inlined capacity of the - // `InlinedVector`. Sometimes, it is possible to increase the capacity (from - // the user requested `N`) without increasing the size of the `InlinedVector`. - static constexpr size_t kOptimalInlinedSize = - (std::max)(N, sizeof(Allocated) / sizeof(ValueType)); - - struct Inlined { - alignas(ValueType) char inlined_data[sizeof( - ValueType[kOptimalInlinedSize])]; - }; - - union Data { - Allocated allocated; - Inlined inlined; - }; - - void SwapN(ElementwiseSwapPolicy, Storage* other, SizeType n); - void SwapN(ElementwiseConstructPolicy, Storage* other, SizeType n); - - void SwapInlinedElements(MemcpyPolicy, Storage* other); - template - void SwapInlinedElements(NotMemcpyPolicy, Storage* other); - - template - ABSL_ATTRIBUTE_NOINLINE Reference EmplaceBackSlow(Args&&... args); - - Metadata metadata_; - Data data_; -}; - -template -void Storage::DestroyContents() { - Pointer data = GetIsAllocated() ? GetAllocatedData() : GetInlinedData(); - DestroyAdapter::DestroyElements(GetAllocator(), data, GetSize()); - DeallocateIfAllocated(); -} - -template -void Storage::InitFrom(const Storage& other) { - const SizeType n = other.GetSize(); - ABSL_HARDENING_ASSERT(n > 0); // Empty sources handled handled in caller. - ConstPointer src; - Pointer dst; - if (!other.GetIsAllocated()) { - dst = GetInlinedData(); - src = other.GetInlinedData(); - } else { - // Because this is only called from the `InlinedVector` constructors, it's - // safe to take on the allocation with size `0`. If `ConstructElements(...)` - // throws, deallocation will be automatically handled by `~Storage()`. - SizeType requested_capacity = ComputeCapacity(GetInlinedCapacity(), n); - Allocation allocation = - MallocAdapter::Allocate(GetAllocator(), requested_capacity); - SetAllocation(allocation); - dst = allocation.data; - src = other.GetAllocatedData(); - } - if (IsMemcpyOk::value) { - std::memcpy(reinterpret_cast(dst), - reinterpret_cast(src), n * sizeof(ValueType)); - } else { - auto values = IteratorValueAdapter>(src); - ConstructElements(GetAllocator(), dst, values, n); - } - GetSizeAndIsAllocated() = other.GetSizeAndIsAllocated(); -} - -template -template -auto Storage::Initialize(ValueAdapter values, SizeType new_size) - -> void { - // Only callable from constructors! - ABSL_HARDENING_ASSERT(!GetIsAllocated()); - ABSL_HARDENING_ASSERT(GetSize() == 0); - - Pointer construct_data; - if (new_size > GetInlinedCapacity()) { - // Because this is only called from the `InlinedVector` constructors, it's - // safe to take on the allocation with size `0`. If `ConstructElements(...)` - // throws, deallocation will be automatically handled by `~Storage()`. - SizeType requested_capacity = - ComputeCapacity(GetInlinedCapacity(), new_size); - Allocation allocation = - MallocAdapter::Allocate(GetAllocator(), requested_capacity); - construct_data = allocation.data; - SetAllocation(allocation); - SetIsAllocated(); - } else { - construct_data = GetInlinedData(); - } - - ConstructElements(GetAllocator(), construct_data, values, new_size); - - // Since the initial size was guaranteed to be `0` and the allocated bit is - // already correct for either case, *adding* `new_size` gives us the correct - // result faster than setting it directly. - AddSize(new_size); -} - -template -template -auto Storage::Assign(ValueAdapter values, SizeType new_size) - -> void { - StorageView storage_view = MakeStorageView(); - - AllocationTransaction allocation_tx(GetAllocator()); - - absl::Span> assign_loop; - absl::Span> construct_loop; - absl::Span> destroy_loop; - - if (new_size > storage_view.capacity) { - SizeType requested_capacity = - ComputeCapacity(storage_view.capacity, new_size); - construct_loop = {allocation_tx.Allocate(requested_capacity), new_size}; - destroy_loop = {storage_view.data, storage_view.size}; - } else if (new_size > storage_view.size) { - assign_loop = {storage_view.data, storage_view.size}; - construct_loop = {storage_view.data + storage_view.size, - new_size - storage_view.size}; - } else { - assign_loop = {storage_view.data, new_size}; - destroy_loop = {storage_view.data + new_size, storage_view.size - new_size}; - } - - AssignElements(assign_loop.data(), values, assign_loop.size()); - - ConstructElements(GetAllocator(), construct_loop.data(), values, - construct_loop.size()); - - DestroyAdapter::DestroyElements(GetAllocator(), destroy_loop.data(), - destroy_loop.size()); - - if (allocation_tx.DidAllocate()) { - DeallocateIfAllocated(); - SetAllocation(std::move(allocation_tx).Release()); - SetIsAllocated(); - } - - SetSize(new_size); -} - -template -template -auto Storage::Resize(ValueAdapter values, SizeType new_size) - -> void { - StorageView storage_view = MakeStorageView(); - Pointer const base = storage_view.data; - const SizeType size = storage_view.size; - A& alloc = GetAllocator(); - if (new_size <= size) { - // Destroy extra old elements. - DestroyAdapter::DestroyElements(alloc, base + new_size, size - new_size); - } else if (new_size <= storage_view.capacity) { - // Construct new elements in place. - ConstructElements(alloc, base + size, values, new_size - size); - } else { - // Steps: - // a. Allocate new backing store. - // b. Construct new elements in new backing store. - // c. Move existing elements from old backing store to new backing store. - // d. Destroy all elements in old backing store. - // Use transactional wrappers for the first two steps so we can roll - // back if necessary due to exceptions. - AllocationTransaction allocation_tx(alloc); - SizeType requested_capacity = - ComputeCapacity(storage_view.capacity, new_size); - Pointer new_data = allocation_tx.Allocate(requested_capacity); - - ConstructionTransaction construction_tx(alloc); - construction_tx.Construct(new_data + size, values, new_size - size); - - IteratorValueAdapter> move_values( - (MoveIterator(base))); - ConstructElements(alloc, new_data, move_values, size); - - DestroyAdapter::DestroyElements(alloc, base, size); - std::move(construction_tx).Commit(); - DeallocateIfAllocated(); - SetAllocation(std::move(allocation_tx).Release()); - SetIsAllocated(); - } - SetSize(new_size); -} - -template -template -auto Storage::Insert(ConstIterator pos, ValueAdapter values, - SizeType insert_count) -> Iterator { - StorageView storage_view = MakeStorageView(); - - auto insert_index = static_cast>( - std::distance(ConstIterator(storage_view.data), pos)); - SizeType insert_end_index = insert_index + insert_count; - SizeType new_size = storage_view.size + insert_count; - - if (new_size > storage_view.capacity) { - AllocationTransaction allocation_tx(GetAllocator()); - ConstructionTransaction construction_tx(GetAllocator()); - ConstructionTransaction move_construction_tx(GetAllocator()); - - IteratorValueAdapter> move_values( - MoveIterator(storage_view.data)); - - SizeType requested_capacity = - ComputeCapacity(storage_view.capacity, new_size); - Pointer new_data = allocation_tx.Allocate(requested_capacity); - - construction_tx.Construct(new_data + insert_index, values, insert_count); - - move_construction_tx.Construct(new_data, move_values, insert_index); - - ConstructElements(GetAllocator(), new_data + insert_end_index, - move_values, storage_view.size - insert_index); - - DestroyAdapter::DestroyElements(GetAllocator(), storage_view.data, - storage_view.size); - - std::move(construction_tx).Commit(); - std::move(move_construction_tx).Commit(); - DeallocateIfAllocated(); - SetAllocation(std::move(allocation_tx).Release()); - - SetAllocatedSize(new_size); - return Iterator(new_data + insert_index); - } else { - SizeType move_construction_destination_index = - (std::max)(insert_end_index, storage_view.size); - - ConstructionTransaction move_construction_tx(GetAllocator()); - - IteratorValueAdapter> move_construction_values( - MoveIterator(storage_view.data + - (move_construction_destination_index - insert_count))); - absl::Span> move_construction = { - storage_view.data + move_construction_destination_index, - new_size - move_construction_destination_index}; - - Pointer move_assignment_values = storage_view.data + insert_index; - absl::Span> move_assignment = { - storage_view.data + insert_end_index, - move_construction_destination_index - insert_end_index}; - - absl::Span> insert_assignment = {move_assignment_values, - move_construction.size()}; - - absl::Span> insert_construction = { - insert_assignment.data() + insert_assignment.size(), - insert_count - insert_assignment.size()}; - - move_construction_tx.Construct(move_construction.data(), - move_construction_values, - move_construction.size()); - - for (Pointer - destination = move_assignment.data() + move_assignment.size(), - last_destination = move_assignment.data(), - source = move_assignment_values + move_assignment.size(); - ;) { - --destination; - --source; - if (destination < last_destination) break; - *destination = std::move(*source); - } - - AssignElements(insert_assignment.data(), values, - insert_assignment.size()); - - ConstructElements(GetAllocator(), insert_construction.data(), values, - insert_construction.size()); - - std::move(move_construction_tx).Commit(); - - AddSize(insert_count); - return Iterator(storage_view.data + insert_index); - } -} - -template -template -auto Storage::EmplaceBack(Args&&... args) -> Reference { - StorageView storage_view = MakeStorageView(); - const SizeType n = storage_view.size; - if (ABSL_PREDICT_TRUE(n != storage_view.capacity)) { - // Fast path; new element fits. - Pointer last_ptr = storage_view.data + n; - AllocatorTraits::construct(GetAllocator(), last_ptr, - std::forward(args)...); - AddSize(1); - return *last_ptr; - } - // TODO(b/173712035): Annotate with musttail attribute to prevent regression. - return EmplaceBackSlow(std::forward(args)...); -} - -template -template -auto Storage::EmplaceBackSlow(Args&&... args) -> Reference { - StorageView storage_view = MakeStorageView(); - AllocationTransaction allocation_tx(GetAllocator()); - IteratorValueAdapter> move_values( - MoveIterator(storage_view.data)); - SizeType requested_capacity = NextCapacity(storage_view.capacity); - Pointer construct_data = allocation_tx.Allocate(requested_capacity); - Pointer last_ptr = construct_data + storage_view.size; - - // Construct new element. - AllocatorTraits::construct(GetAllocator(), last_ptr, - std::forward(args)...); - // Move elements from old backing store to new backing store. - ABSL_INTERNAL_TRY { - ConstructElements(GetAllocator(), allocation_tx.GetData(), move_values, - storage_view.size); - } - ABSL_INTERNAL_CATCH_ANY { - AllocatorTraits::destroy(GetAllocator(), last_ptr); - ABSL_INTERNAL_RETHROW; - } - // Destroy elements in old backing store. - DestroyAdapter::DestroyElements(GetAllocator(), storage_view.data, - storage_view.size); - - DeallocateIfAllocated(); - SetAllocation(std::move(allocation_tx).Release()); - SetIsAllocated(); - AddSize(1); - return *last_ptr; -} - -template -auto Storage::Erase(ConstIterator from, ConstIterator to) - -> Iterator { - StorageView storage_view = MakeStorageView(); - - auto erase_size = static_cast>(std::distance(from, to)); - auto erase_index = static_cast>( - std::distance(ConstIterator(storage_view.data), from)); - SizeType erase_end_index = erase_index + erase_size; - - IteratorValueAdapter> move_values( - MoveIterator(storage_view.data + erase_end_index)); - - AssignElements(storage_view.data + erase_index, move_values, - storage_view.size - erase_end_index); - - DestroyAdapter::DestroyElements( - GetAllocator(), storage_view.data + (storage_view.size - erase_size), - erase_size); - - SubtractSize(erase_size); - return Iterator(storage_view.data + erase_index); -} - -template -auto Storage::Reserve(SizeType requested_capacity) -> void { - StorageView storage_view = MakeStorageView(); - - if (ABSL_PREDICT_FALSE(requested_capacity <= storage_view.capacity)) return; - - AllocationTransaction allocation_tx(GetAllocator()); - - IteratorValueAdapter> move_values( - MoveIterator(storage_view.data)); - - SizeType new_requested_capacity = - ComputeCapacity(storage_view.capacity, requested_capacity); - Pointer new_data = allocation_tx.Allocate(new_requested_capacity); - - ConstructElements(GetAllocator(), new_data, move_values, - storage_view.size); - - DestroyAdapter::DestroyElements(GetAllocator(), storage_view.data, - storage_view.size); - - DeallocateIfAllocated(); - SetAllocation(std::move(allocation_tx).Release()); - SetIsAllocated(); -} - -template -auto Storage::ShrinkToFit() -> void { - // May only be called on allocated instances! - ABSL_HARDENING_ASSERT(GetIsAllocated()); - - StorageView storage_view{GetAllocatedData(), GetSize(), - GetAllocatedCapacity()}; - - if (ABSL_PREDICT_FALSE(storage_view.size == storage_view.capacity)) return; - - AllocationTransaction allocation_tx(GetAllocator()); - - IteratorValueAdapter> move_values( - MoveIterator(storage_view.data)); - - Pointer construct_data; - if (storage_view.size > GetInlinedCapacity()) { - SizeType requested_capacity = storage_view.size; - construct_data = allocation_tx.Allocate(requested_capacity); - if (allocation_tx.GetCapacity() >= storage_view.capacity) { - // Already using the smallest available heap allocation. - return; - } - } else { - construct_data = GetInlinedData(); - } - - ABSL_INTERNAL_TRY { - ConstructElements(GetAllocator(), construct_data, move_values, - storage_view.size); - } - ABSL_INTERNAL_CATCH_ANY { - SetAllocation({storage_view.data, storage_view.capacity}); - ABSL_INTERNAL_RETHROW; - } - - DestroyAdapter::DestroyElements(GetAllocator(), storage_view.data, - storage_view.size); - - MallocAdapter::Deallocate(GetAllocator(), storage_view.data, - storage_view.capacity); - - if (allocation_tx.DidAllocate()) { - SetAllocation(std::move(allocation_tx).Release()); - } else { - UnsetIsAllocated(); - } -} - -template -auto Storage::Swap(Storage* other_storage_ptr) -> void { - using std::swap; - ABSL_HARDENING_ASSERT(this != other_storage_ptr); - - if (GetIsAllocated() && other_storage_ptr->GetIsAllocated()) { - swap(data_.allocated, other_storage_ptr->data_.allocated); - } else if (!GetIsAllocated() && !other_storage_ptr->GetIsAllocated()) { - SwapInlinedElements(SwapPolicy{}, other_storage_ptr); - } else { - Storage* allocated_ptr = this; - Storage* inlined_ptr = other_storage_ptr; - if (!allocated_ptr->GetIsAllocated()) swap(allocated_ptr, inlined_ptr); - - StorageView allocated_storage_view{ - allocated_ptr->GetAllocatedData(), allocated_ptr->GetSize(), - allocated_ptr->GetAllocatedCapacity()}; - - IteratorValueAdapter> move_values( - MoveIterator(inlined_ptr->GetInlinedData())); - - ABSL_INTERNAL_TRY { - ConstructElements(inlined_ptr->GetAllocator(), - allocated_ptr->GetInlinedData(), move_values, - inlined_ptr->GetSize()); - } - ABSL_INTERNAL_CATCH_ANY { - allocated_ptr->SetAllocation(Allocation{ - allocated_storage_view.data, allocated_storage_view.capacity}); - ABSL_INTERNAL_RETHROW; - } - - DestroyAdapter::DestroyElements(inlined_ptr->GetAllocator(), - inlined_ptr->GetInlinedData(), - inlined_ptr->GetSize()); - - inlined_ptr->SetAllocation(Allocation{allocated_storage_view.data, - allocated_storage_view.capacity}); - } - - swap(GetSizeAndIsAllocated(), other_storage_ptr->GetSizeAndIsAllocated()); - swap(GetAllocator(), other_storage_ptr->GetAllocator()); -} - -template -void Storage::SwapN(ElementwiseSwapPolicy, Storage* other, - SizeType n) { - std::swap_ranges(GetInlinedData(), GetInlinedData() + n, - other->GetInlinedData()); -} - -template -void Storage::SwapN(ElementwiseConstructPolicy, Storage* other, - SizeType n) { - Pointer a = GetInlinedData(); - Pointer b = other->GetInlinedData(); - // see note on allocators in `SwapInlinedElements`. - A& allocator_a = GetAllocator(); - A& allocator_b = other->GetAllocator(); - for (SizeType i = 0; i < n; ++i, ++a, ++b) { - ValueType tmp(std::move(*a)); - - AllocatorTraits::destroy(allocator_a, a); - AllocatorTraits::construct(allocator_b, a, std::move(*b)); - - AllocatorTraits::destroy(allocator_b, b); - AllocatorTraits::construct(allocator_a, b, std::move(tmp)); - } -} - -template -void Storage::SwapInlinedElements(MemcpyPolicy, Storage* other) { - Data tmp = data_; - data_ = other->data_; - other->data_ = tmp; -} - -template -template -void Storage::SwapInlinedElements(NotMemcpyPolicy policy, - Storage* other) { - // Note: `destroy` needs to use pre-swap allocator while `construct` - - // post-swap allocator. Allocators will be swaped later on outside of - // `SwapInlinedElements`. - Storage* small_ptr = this; - Storage* large_ptr = other; - if (small_ptr->GetSize() > large_ptr->GetSize()) { - std::swap(small_ptr, large_ptr); - } - - auto small_size = small_ptr->GetSize(); - auto diff = large_ptr->GetSize() - small_size; - SwapN(policy, other, small_size); - - IteratorValueAdapter> move_values( - MoveIterator(large_ptr->GetInlinedData() + small_size)); - - ConstructElements(large_ptr->GetAllocator(), - small_ptr->GetInlinedData() + small_size, move_values, - diff); - - DestroyAdapter::DestroyElements(large_ptr->GetAllocator(), - large_ptr->GetInlinedData() + small_size, - diff); -} - -// End ignore "array-bounds" -#if !defined(__clang__) && defined(__GNUC__) -#pragma GCC diagnostic pop -#endif - -} // namespace inlined_vector_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_CONTAINER_INTERNAL_INLINED_VECTOR_H_ diff --git a/src/third_party/abseil-cpp/absl/container/internal/layout.h b/src/third_party/abseil-cpp/absl/container/internal/layout.h deleted file mode 100644 index a59a243059..0000000000 --- a/src/third_party/abseil-cpp/absl/container/internal/layout.h +++ /dev/null @@ -1,743 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// MOTIVATION AND TUTORIAL -// -// If you want to put in a single heap allocation N doubles followed by M ints, -// it's easy if N and M are known at compile time. -// -// struct S { -// double a[N]; -// int b[M]; -// }; -// -// S* p = new S; -// -// But what if N and M are known only in run time? Class template Layout to the -// rescue! It's a portable generalization of the technique known as struct hack. -// -// // This object will tell us everything we need to know about the memory -// // layout of double[N] followed by int[M]. It's structurally identical to -// // size_t[2] that stores N and M. It's very cheap to create. -// const Layout layout(N, M); -// -// // Allocate enough memory for both arrays. `AllocSize()` tells us how much -// // memory is needed. We are free to use any allocation function we want as -// // long as it returns aligned memory. -// std::unique_ptr p(new unsigned char[layout.AllocSize()]); -// -// // Obtain the pointer to the array of doubles. -// // Equivalent to `reinterpret_cast(p.get())`. -// // -// // We could have written layout.Pointer<0>(p) instead. If all the types are -// // unique you can use either form, but if some types are repeated you must -// // use the index form. -// double* a = layout.Pointer(p.get()); -// -// // Obtain the pointer to the array of ints. -// // Equivalent to `reinterpret_cast(p.get() + N * 8)`. -// int* b = layout.Pointer(p); -// -// If we are unable to specify sizes of all fields, we can pass as many sizes as -// we can to `Partial()`. In return, it'll allow us to access the fields whose -// locations and sizes can be computed from the provided information. -// `Partial()` comes in handy when the array sizes are embedded into the -// allocation. -// -// // size_t[1] containing N, size_t[1] containing M, double[N], int[M]. -// using L = Layout; -// -// unsigned char* Allocate(size_t n, size_t m) { -// const L layout(1, 1, n, m); -// unsigned char* p = new unsigned char[layout.AllocSize()]; -// *layout.Pointer<0>(p) = n; -// *layout.Pointer<1>(p) = m; -// return p; -// } -// -// void Use(unsigned char* p) { -// // First, extract N and M. -// // Specify that the first array has only one element. Using `prefix` we -// // can access the first two arrays but not more. -// constexpr auto prefix = L::Partial(1); -// size_t n = *prefix.Pointer<0>(p); -// size_t m = *prefix.Pointer<1>(p); -// -// // Now we can get pointers to the payload. -// const L layout(1, 1, n, m); -// double* a = layout.Pointer(p); -// int* b = layout.Pointer(p); -// } -// -// The layout we used above combines fixed-size with dynamically-sized fields. -// This is quite common. Layout is optimized for this use case and generates -// optimal code. All computations that can be performed at compile time are -// indeed performed at compile time. -// -// Efficiency tip: The order of fields matters. In `Layout` try to -// ensure that `alignof(T1) >= ... >= alignof(TN)`. This way you'll have no -// padding in between arrays. -// -// You can manually override the alignment of an array by wrapping the type in -// `Aligned`. `Layout<..., Aligned, ...>` has exactly the same API -// and behavior as `Layout<..., T, ...>` except that the first element of the -// array of `T` is aligned to `N` (the rest of the elements follow without -// padding). `N` cannot be less than `alignof(T)`. -// -// `AllocSize()` and `Pointer()` are the most basic methods for dealing with -// memory layouts. Check out the reference or code below to discover more. -// -// EXAMPLE -// -// // Immutable move-only string with sizeof equal to sizeof(void*). The -// // string size and the characters are kept in the same heap allocation. -// class CompactString { -// public: -// CompactString(const char* s = "") { -// const size_t size = strlen(s); -// // size_t[1] followed by char[size + 1]. -// const L layout(1, size + 1); -// p_.reset(new unsigned char[layout.AllocSize()]); -// // If running under ASAN, mark the padding bytes, if any, to catch -// // memory errors. -// layout.PoisonPadding(p_.get()); -// // Store the size in the allocation. -// *layout.Pointer(p_.get()) = size; -// // Store the characters in the allocation. -// memcpy(layout.Pointer(p_.get()), s, size + 1); -// } -// -// size_t size() const { -// // Equivalent to reinterpret_cast(*p). -// return *L::Partial().Pointer(p_.get()); -// } -// -// const char* c_str() const { -// // Equivalent to reinterpret_cast(p.get() + sizeof(size_t)). -// // The argument in Partial(1) specifies that we have size_t[1] in front -// // of the characters. -// return L::Partial(1).Pointer(p_.get()); -// } -// -// private: -// // Our heap allocation contains a size_t followed by an array of chars. -// using L = Layout; -// std::unique_ptr p_; -// }; -// -// int main() { -// CompactString s = "hello"; -// assert(s.size() == 5); -// assert(strcmp(s.c_str(), "hello") == 0); -// } -// -// DOCUMENTATION -// -// The interface exported by this file consists of: -// - class `Layout<>` and its public members. -// - The public members of class `internal_layout::LayoutImpl<>`. That class -// isn't intended to be used directly, and its name and template parameter -// list are internal implementation details, but the class itself provides -// most of the functionality in this file. See comments on its members for -// detailed documentation. -// -// `Layout::Partial(count1,..., countm)` (where `m` <= `n`) returns a -// `LayoutImpl<>` object. `Layout layout(count1,..., countn)` -// creates a `Layout` object, which exposes the same functionality by inheriting -// from `LayoutImpl<>`. - -#ifndef ABSL_CONTAINER_INTERNAL_LAYOUT_H_ -#define ABSL_CONTAINER_INTERNAL_LAYOUT_H_ - -#include -#include -#include - -#include -#include -#include -#include -#include -#include - -#include "absl/base/config.h" -#include "absl/meta/type_traits.h" -#include "absl/strings/str_cat.h" -#include "absl/types/span.h" -#include "absl/utility/utility.h" - -#ifdef ABSL_HAVE_ADDRESS_SANITIZER -#include -#endif - -#if defined(__GXX_RTTI) -#define ABSL_INTERNAL_HAS_CXA_DEMANGLE -#endif - -#ifdef ABSL_INTERNAL_HAS_CXA_DEMANGLE -#include -#endif - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace container_internal { - -// A type wrapper that instructs `Layout` to use the specific alignment for the -// array. `Layout<..., Aligned, ...>` has exactly the same API -// and behavior as `Layout<..., T, ...>` except that the first element of the -// array of `T` is aligned to `N` (the rest of the elements follow without -// padding). -// -// Requires: `N >= alignof(T)` and `N` is a power of 2. -template -struct Aligned; - -namespace internal_layout { - -template -struct NotAligned {}; - -template -struct NotAligned> { - static_assert(sizeof(T) == 0, "Aligned cannot be const-qualified"); -}; - -template -using IntToSize = size_t; - -template -using TypeToSize = size_t; - -template -struct Type : NotAligned { - using type = T; -}; - -template -struct Type> { - using type = T; -}; - -template -struct SizeOf : NotAligned, std::integral_constant {}; - -template -struct SizeOf> : std::integral_constant {}; - -// Note: workaround for https://gcc.gnu.org/PR88115 -template -struct AlignOf : NotAligned { - static constexpr size_t value = alignof(T); -}; - -template -struct AlignOf> { - static_assert(N % alignof(T) == 0, - "Custom alignment can't be lower than the type's alignment"); - static constexpr size_t value = N; -}; - -// Does `Ts...` contain `T`? -template -using Contains = absl::disjunction...>; - -template -using CopyConst = - typename std::conditional::value, const To, To>::type; - -// Note: We're not qualifying this with absl:: because it doesn't compile under -// MSVC. -template -using SliceType = Span; - -// This namespace contains no types. It prevents functions defined in it from -// being found by ADL. -namespace adl_barrier { - -template -constexpr size_t Find(Needle, Needle, Ts...) { - static_assert(!Contains(), "Duplicate element type"); - return 0; -} - -template -constexpr size_t Find(Needle, T, Ts...) { - return adl_barrier::Find(Needle(), Ts()...) + 1; -} - -constexpr bool IsPow2(size_t n) { return !(n & (n - 1)); } - -// Returns `q * m` for the smallest `q` such that `q * m >= n`. -// Requires: `m` is a power of two. It's enforced by IsLegalElementType below. -constexpr size_t Align(size_t n, size_t m) { return (n + m - 1) & ~(m - 1); } - -constexpr size_t Min(size_t a, size_t b) { return b < a ? b : a; } - -constexpr size_t Max(size_t a) { return a; } - -template -constexpr size_t Max(size_t a, size_t b, Ts... rest) { - return adl_barrier::Max(b < a ? a : b, rest...); -} - -template -std::string TypeName() { - std::string out; - int status = 0; - char* demangled = nullptr; -#ifdef ABSL_INTERNAL_HAS_CXA_DEMANGLE - demangled = abi::__cxa_demangle(typeid(T).name(), nullptr, nullptr, &status); -#endif - if (status == 0 && demangled != nullptr) { // Demangling succeeded. - absl::StrAppend(&out, "<", demangled, ">"); - free(demangled); - } else { -#if defined(__GXX_RTTI) || defined(_CPPRTTI) - absl::StrAppend(&out, "<", typeid(T).name(), ">"); -#endif - } - return out; -} - -} // namespace adl_barrier - -template -using EnableIf = typename std::enable_if::type; - -// Can `T` be a template argument of `Layout`? -template -using IsLegalElementType = std::integral_constant< - bool, !std::is_reference::value && !std::is_volatile::value && - !std::is_reference::type>::value && - !std::is_volatile::type>::value && - adl_barrier::IsPow2(AlignOf::value)>; - -template -class LayoutImpl; - -// Public base class of `Layout` and the result type of `Layout::Partial()`. -// -// `Elements...` contains all template arguments of `Layout` that created this -// instance. -// -// `SizeSeq...` is `[0, NumSizes)` where `NumSizes` is the number of arguments -// passed to `Layout::Partial()` or `Layout::Layout()`. -// -// `OffsetSeq...` is `[0, NumOffsets)` where `NumOffsets` is -// `Min(sizeof...(Elements), NumSizes + 1)` (the number of arrays for which we -// can compute offsets). -template -class LayoutImpl, absl::index_sequence, - absl::index_sequence> { - private: - static_assert(sizeof...(Elements) > 0, "At least one field is required"); - static_assert(absl::conjunction...>::value, - "Invalid element type (see IsLegalElementType)"); - - enum { - NumTypes = sizeof...(Elements), - NumSizes = sizeof...(SizeSeq), - NumOffsets = sizeof...(OffsetSeq), - }; - - // These are guaranteed by `Layout`. - static_assert(NumOffsets == adl_barrier::Min(NumTypes, NumSizes + 1), - "Internal error"); - static_assert(NumTypes > 0, "Internal error"); - - // Returns the index of `T` in `Elements...`. Results in a compilation error - // if `Elements...` doesn't contain exactly one instance of `T`. - template - static constexpr size_t ElementIndex() { - static_assert(Contains, Type::type>...>(), - "Type not found"); - return adl_barrier::Find(Type(), - Type::type>()...); - } - - template - using ElementAlignment = - AlignOf>::type>; - - public: - // Element types of all arrays packed in a tuple. - using ElementTypes = std::tuple::type...>; - - // Element type of the Nth array. - template - using ElementType = typename std::tuple_element::type; - - constexpr explicit LayoutImpl(IntToSize... sizes) - : size_{sizes...} {} - - // Alignment of the layout, equal to the strictest alignment of all elements. - // All pointers passed to the methods of layout must be aligned to this value. - static constexpr size_t Alignment() { - return adl_barrier::Max(AlignOf::value...); - } - - // Offset in bytes of the Nth array. - // - // // int[3], 4 bytes of padding, double[4]. - // Layout x(3, 4); - // assert(x.Offset<0>() == 0); // The ints starts from 0. - // assert(x.Offset<1>() == 16); // The doubles starts from 16. - // - // Requires: `N <= NumSizes && N < sizeof...(Ts)`. - template = 0> - constexpr size_t Offset() const { - return 0; - } - - template = 0> - constexpr size_t Offset() const { - static_assert(N < NumOffsets, "Index out of bounds"); - return adl_barrier::Align( - Offset() + SizeOf>::value * size_[N - 1], - ElementAlignment::value); - } - - // Offset in bytes of the array with the specified element type. There must - // be exactly one such array and its zero-based index must be at most - // `NumSizes`. - // - // // int[3], 4 bytes of padding, double[4]. - // Layout x(3, 4); - // assert(x.Offset() == 0); // The ints starts from 0. - // assert(x.Offset() == 16); // The doubles starts from 16. - template - constexpr size_t Offset() const { - return Offset()>(); - } - - // Offsets in bytes of all arrays for which the offsets are known. - constexpr std::array Offsets() const { - return {{Offset()...}}; - } - - // The number of elements in the Nth array. This is the Nth argument of - // `Layout::Partial()` or `Layout::Layout()` (zero-based). - // - // // int[3], 4 bytes of padding, double[4]. - // Layout x(3, 4); - // assert(x.Size<0>() == 3); - // assert(x.Size<1>() == 4); - // - // Requires: `N < NumSizes`. - template - constexpr size_t Size() const { - static_assert(N < NumSizes, "Index out of bounds"); - return size_[N]; - } - - // The number of elements in the array with the specified element type. - // There must be exactly one such array and its zero-based index must be - // at most `NumSizes`. - // - // // int[3], 4 bytes of padding, double[4]. - // Layout x(3, 4); - // assert(x.Size() == 3); - // assert(x.Size() == 4); - template - constexpr size_t Size() const { - return Size()>(); - } - - // The number of elements of all arrays for which they are known. - constexpr std::array Sizes() const { - return {{Size()...}}; - } - - // Pointer to the beginning of the Nth array. - // - // `Char` must be `[const] [signed|unsigned] char`. - // - // // int[3], 4 bytes of padding, double[4]. - // Layout x(3, 4); - // unsigned char* p = new unsigned char[x.AllocSize()]; - // int* ints = x.Pointer<0>(p); - // double* doubles = x.Pointer<1>(p); - // - // Requires: `N <= NumSizes && N < sizeof...(Ts)`. - // Requires: `p` is aligned to `Alignment()`. - template - CopyConst>* Pointer(Char* p) const { - using C = typename std::remove_const::type; - static_assert( - std::is_same() || std::is_same() || - std::is_same(), - "The argument must be a pointer to [const] [signed|unsigned] char"); - constexpr size_t alignment = Alignment(); - (void)alignment; - assert(reinterpret_cast(p) % alignment == 0); - return reinterpret_cast>*>(p + Offset()); - } - - // Pointer to the beginning of the array with the specified element type. - // There must be exactly one such array and its zero-based index must be at - // most `NumSizes`. - // - // `Char` must be `[const] [signed|unsigned] char`. - // - // // int[3], 4 bytes of padding, double[4]. - // Layout x(3, 4); - // unsigned char* p = new unsigned char[x.AllocSize()]; - // int* ints = x.Pointer(p); - // double* doubles = x.Pointer(p); - // - // Requires: `p` is aligned to `Alignment()`. - template - CopyConst* Pointer(Char* p) const { - return Pointer()>(p); - } - - // Pointers to all arrays for which pointers are known. - // - // `Char` must be `[const] [signed|unsigned] char`. - // - // // int[3], 4 bytes of padding, double[4]. - // Layout x(3, 4); - // unsigned char* p = new unsigned char[x.AllocSize()]; - // - // int* ints; - // double* doubles; - // std::tie(ints, doubles) = x.Pointers(p); - // - // Requires: `p` is aligned to `Alignment()`. - // - // Note: We're not using ElementType alias here because it does not compile - // under MSVC. - template - std::tuple::type>*...> - Pointers(Char* p) const { - return std::tuple>*...>( - Pointer(p)...); - } - - // The Nth array. - // - // `Char` must be `[const] [signed|unsigned] char`. - // - // // int[3], 4 bytes of padding, double[4]. - // Layout x(3, 4); - // unsigned char* p = new unsigned char[x.AllocSize()]; - // Span ints = x.Slice<0>(p); - // Span doubles = x.Slice<1>(p); - // - // Requires: `N < NumSizes`. - // Requires: `p` is aligned to `Alignment()`. - template - SliceType>> Slice(Char* p) const { - return SliceType>>(Pointer(p), Size()); - } - - // The array with the specified element type. There must be exactly one - // such array and its zero-based index must be less than `NumSizes`. - // - // `Char` must be `[const] [signed|unsigned] char`. - // - // // int[3], 4 bytes of padding, double[4]. - // Layout x(3, 4); - // unsigned char* p = new unsigned char[x.AllocSize()]; - // Span ints = x.Slice(p); - // Span doubles = x.Slice(p); - // - // Requires: `p` is aligned to `Alignment()`. - template - SliceType> Slice(Char* p) const { - return Slice()>(p); - } - - // All arrays with known sizes. - // - // `Char` must be `[const] [signed|unsigned] char`. - // - // // int[3], 4 bytes of padding, double[4]. - // Layout x(3, 4); - // unsigned char* p = new unsigned char[x.AllocSize()]; - // - // Span ints; - // Span doubles; - // std::tie(ints, doubles) = x.Slices(p); - // - // Requires: `p` is aligned to `Alignment()`. - // - // Note: We're not using ElementType alias here because it does not compile - // under MSVC. - template - std::tuple::type>>...> - Slices(Char* p) const { - // Workaround for https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63875 (fixed - // in 6.1). - (void)p; - return std::tuple>>...>( - Slice(p)...); - } - - // The size of the allocation that fits all arrays. - // - // // int[3], 4 bytes of padding, double[4]. - // Layout x(3, 4); - // unsigned char* p = new unsigned char[x.AllocSize()]; // 48 bytes - // - // Requires: `NumSizes == sizeof...(Ts)`. - constexpr size_t AllocSize() const { - static_assert(NumTypes == NumSizes, "You must specify sizes of all fields"); - return Offset() + - SizeOf>::value * size_[NumTypes - 1]; - } - - // If built with --config=asan, poisons padding bytes (if any) in the - // allocation. The pointer must point to a memory block at least - // `AllocSize()` bytes in length. - // - // `Char` must be `[const] [signed|unsigned] char`. - // - // Requires: `p` is aligned to `Alignment()`. - template = 0> - void PoisonPadding(const Char* p) const { - Pointer<0>(p); // verify the requirements on `Char` and `p` - } - - template = 0> - void PoisonPadding(const Char* p) const { - static_assert(N < NumOffsets, "Index out of bounds"); - (void)p; -#ifdef ABSL_HAVE_ADDRESS_SANITIZER - PoisonPadding(p); - // The `if` is an optimization. It doesn't affect the observable behaviour. - if (ElementAlignment::value % ElementAlignment::value) { - size_t start = - Offset() + SizeOf>::value * size_[N - 1]; - ASAN_POISON_MEMORY_REGION(p + start, Offset() - start); - } -#endif - } - - // Human-readable description of the memory layout. Useful for debugging. - // Slow. - // - // // char[5], 3 bytes of padding, int[3], 4 bytes of padding, followed - // // by an unknown number of doubles. - // auto x = Layout::Partial(5, 3); - // assert(x.DebugString() == - // "@0(1)[5]; @8(4)[3]; @24(8)"); - // - // Each field is in the following format: @offset(sizeof)[size] ( - // may be missing depending on the target platform). For example, - // @8(4)[3] means that at offset 8 we have an array of ints, where each - // int is 4 bytes, and we have 3 of those ints. The size of the last field may - // be missing (as in the example above). Only fields with known offsets are - // described. Type names may differ across platforms: one compiler might - // produce "unsigned*" where another produces "unsigned int *". - std::string DebugString() const { - const auto offsets = Offsets(); - const size_t sizes[] = {SizeOf>::value...}; - const std::string types[] = { - adl_barrier::TypeName>()...}; - std::string res = absl::StrCat("@0", types[0], "(", sizes[0], ")"); - for (size_t i = 0; i != NumOffsets - 1; ++i) { - absl::StrAppend(&res, "[", size_[i], "]; @", offsets[i + 1], types[i + 1], - "(", sizes[i + 1], ")"); - } - // NumSizes is a constant that may be zero. Some compilers cannot see that - // inside the if statement "size_[NumSizes - 1]" must be valid. - int last = static_cast(NumSizes) - 1; - if (NumTypes == NumSizes && last >= 0) { - absl::StrAppend(&res, "[", size_[last], "]"); - } - return res; - } - - private: - // Arguments of `Layout::Partial()` or `Layout::Layout()`. - size_t size_[NumSizes > 0 ? NumSizes : 1]; -}; - -template -using LayoutType = LayoutImpl< - std::tuple, absl::make_index_sequence, - absl::make_index_sequence>; - -} // namespace internal_layout - -// Descriptor of arrays of various types and sizes laid out in memory one after -// another. See the top of the file for documentation. -// -// Check out the public API of internal_layout::LayoutImpl above. The type is -// internal to the library but its methods are public, and they are inherited -// by `Layout`. -template -class Layout : public internal_layout::LayoutType { - public: - static_assert(sizeof...(Ts) > 0, "At least one field is required"); - static_assert( - absl::conjunction...>::value, - "Invalid element type (see IsLegalElementType)"); - - // The result type of `Partial()` with `NumSizes` arguments. - template - using PartialType = internal_layout::LayoutType; - - // `Layout` knows the element types of the arrays we want to lay out in - // memory but not the number of elements in each array. - // `Partial(size1, ..., sizeN)` allows us to specify the latter. The - // resulting immutable object can be used to obtain pointers to the - // individual arrays. - // - // It's allowed to pass fewer array sizes than the number of arrays. E.g., - // if all you need is to the offset of the second array, you only need to - // pass one argument -- the number of elements in the first array. - // - // // int[3] followed by 4 bytes of padding and an unknown number of - // // doubles. - // auto x = Layout::Partial(3); - // // doubles start at byte 16. - // assert(x.Offset<1>() == 16); - // - // If you know the number of elements in all arrays, you can still call - // `Partial()` but it's more convenient to use the constructor of `Layout`. - // - // Layout x(3, 5); - // - // Note: The sizes of the arrays must be specified in number of elements, - // not in bytes. - // - // Requires: `sizeof...(Sizes) <= sizeof...(Ts)`. - // Requires: all arguments are convertible to `size_t`. - template - static constexpr PartialType Partial(Sizes&&... sizes) { - static_assert(sizeof...(Sizes) <= sizeof...(Ts), ""); - return PartialType(absl::forward(sizes)...); - } - - // Creates a layout with the sizes of all arrays specified. If you know - // only the sizes of the first N arrays (where N can be zero), you can use - // `Partial()` defined above. The constructor is essentially equivalent to - // calling `Partial()` and passing in all array sizes; the constructor is - // provided as a convenient abbreviation. - // - // Note: The sizes of the arrays must be specified in number of elements, - // not in bytes. - constexpr explicit Layout(internal_layout::TypeToSize... sizes) - : internal_layout::LayoutType(sizes...) {} -}; - -} // namespace container_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_CONTAINER_INTERNAL_LAYOUT_H_ diff --git a/src/third_party/abseil-cpp/absl/container/internal/layout_benchmark.cc b/src/third_party/abseil-cpp/absl/container/internal/layout_benchmark.cc deleted file mode 100644 index d8636e8d5a..0000000000 --- a/src/third_party/abseil-cpp/absl/container/internal/layout_benchmark.cc +++ /dev/null @@ -1,122 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// Every benchmark should have the same performance as the corresponding -// headroom benchmark. - -#include "absl/base/internal/raw_logging.h" -#include "absl/container/internal/layout.h" -#include "benchmark/benchmark.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace container_internal { -namespace { - -using ::benchmark::DoNotOptimize; - -using Int128 = int64_t[2]; - -// This benchmark provides the upper bound on performance for BM_OffsetConstant. -template -void BM_OffsetConstantHeadroom(benchmark::State& state) { - for (auto _ : state) { - DoNotOptimize(Offset); - } -} - -template -void BM_OffsetConstant(benchmark::State& state) { - using L = Layout; - ABSL_RAW_CHECK(L::Partial(3, 5, 7).template Offset<3>() == Offset, - "Invalid offset"); - for (auto _ : state) { - DoNotOptimize(L::Partial(3, 5, 7).template Offset<3>()); - } -} - -template -size_t VariableOffset(size_t n, size_t m, size_t k); - -template <> -size_t VariableOffset(size_t n, size_t m, - size_t k) { - auto Align = [](size_t n, size_t m) { return (n + m - 1) & ~(m - 1); }; - return Align(Align(Align(n * 1, 2) + m * 2, 4) + k * 4, 8); -} - -template <> -size_t VariableOffset(size_t n, size_t m, - size_t k) { - // No alignment is necessary. - return n * 16 + m * 4 + k * 2; -} - -// This benchmark provides the upper bound on performance for BM_OffsetVariable. -template -void BM_OffsetVariableHeadroom(benchmark::State& state) { - size_t n = 3; - size_t m = 5; - size_t k = 7; - ABSL_RAW_CHECK(VariableOffset(n, m, k) == Offset, "Invalid offset"); - for (auto _ : state) { - DoNotOptimize(n); - DoNotOptimize(m); - DoNotOptimize(k); - DoNotOptimize(VariableOffset(n, m, k)); - } -} - -template -void BM_OffsetVariable(benchmark::State& state) { - using L = Layout; - size_t n = 3; - size_t m = 5; - size_t k = 7; - ABSL_RAW_CHECK(L::Partial(n, m, k).template Offset<3>() == Offset, - "Inavlid offset"); - for (auto _ : state) { - DoNotOptimize(n); - DoNotOptimize(m); - DoNotOptimize(k); - DoNotOptimize(L::Partial(n, m, k).template Offset<3>()); - } -} - -// Run all benchmarks in two modes: -// -// Layout with padding: int8_t[3], int16_t[5], int32_t[7], Int128[?]. -// Layout without padding: Int128[3], int32_t[5], int16_t[7], int8_t[?]. - -#define OFFSET_BENCHMARK(NAME, OFFSET, T1, T2, T3, T4) \ - auto& NAME##_##OFFSET##_##T1##_##T2##_##T3##_##T4 = \ - NAME; \ - BENCHMARK(NAME##_##OFFSET##_##T1##_##T2##_##T3##_##T4) - -OFFSET_BENCHMARK(BM_OffsetConstantHeadroom, 48, int8_t, int16_t, int32_t, - Int128); -OFFSET_BENCHMARK(BM_OffsetConstant, 48, int8_t, int16_t, int32_t, Int128); -OFFSET_BENCHMARK(BM_OffsetConstantHeadroom, 82, Int128, int32_t, int16_t, - int8_t); -OFFSET_BENCHMARK(BM_OffsetConstant, 82, Int128, int32_t, int16_t, int8_t); -OFFSET_BENCHMARK(BM_OffsetVariableHeadroom, 48, int8_t, int16_t, int32_t, - Int128); -OFFSET_BENCHMARK(BM_OffsetVariable, 48, int8_t, int16_t, int32_t, Int128); -OFFSET_BENCHMARK(BM_OffsetVariableHeadroom, 82, Int128, int32_t, int16_t, - int8_t); -OFFSET_BENCHMARK(BM_OffsetVariable, 82, Int128, int32_t, int16_t, int8_t); -} // namespace -} // namespace container_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/src/third_party/abseil-cpp/absl/container/internal/layout_test.cc b/src/third_party/abseil-cpp/absl/container/internal/layout_test.cc deleted file mode 100644 index 54e5d5bbb8..0000000000 --- a/src/third_party/abseil-cpp/absl/container/internal/layout_test.cc +++ /dev/null @@ -1,1641 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/container/internal/layout.h" - -// We need ::max_align_t because some libstdc++ versions don't provide -// std::max_align_t -#include - -#include -#include -#include -#include - -#include "gmock/gmock.h" -#include "gtest/gtest.h" -#include "absl/base/config.h" -#include "absl/base/internal/raw_logging.h" -#include "absl/types/span.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace container_internal { -namespace { - -using ::absl::Span; -using ::testing::ElementsAre; - -size_t Distance(const void* from, const void* to) { - ABSL_RAW_CHECK(from <= to, "Distance must be non-negative"); - return static_cast(to) - static_cast(from); -} - -template -Expected Type(Actual val) { - static_assert(std::is_same(), ""); - return val; -} - -// Helper classes to test different size and alignments. -struct alignas(8) Int128 { - uint64_t a, b; - friend bool operator==(Int128 lhs, Int128 rhs) { - return std::tie(lhs.a, lhs.b) == std::tie(rhs.a, rhs.b); - } - - static std::string Name() { - return internal_layout::adl_barrier::TypeName(); - } -}; - -// int64_t is *not* 8-byte aligned on all platforms! -struct alignas(8) Int64 { - int64_t a; - friend bool operator==(Int64 lhs, Int64 rhs) { - return lhs.a == rhs.a; - } -}; - -// Properties of types that this test relies on. -static_assert(sizeof(int8_t) == 1, ""); -static_assert(alignof(int8_t) == 1, ""); -static_assert(sizeof(int16_t) == 2, ""); -static_assert(alignof(int16_t) == 2, ""); -static_assert(sizeof(int32_t) == 4, ""); -static_assert(alignof(int32_t) == 4, ""); -static_assert(sizeof(Int64) == 8, ""); -static_assert(alignof(Int64) == 8, ""); -static_assert(sizeof(Int128) == 16, ""); -static_assert(alignof(Int128) == 8, ""); - -template -void SameType() { - static_assert(std::is_same(), ""); -} - -TEST(Layout, ElementType) { - { - using L = Layout; - SameType>(); - SameType>(); - SameType>(); - } - { - using L = Layout; - SameType>(); - SameType>(); - SameType>(); - SameType>(); - SameType>(); - SameType>(); - } - { - using L = Layout; - SameType>(); - SameType>(); - SameType>(); - SameType>(); - SameType>(); - SameType>(); - SameType>(); - SameType>(); - SameType>(); - SameType>(); - SameType>(); - SameType>(); - } -} - -TEST(Layout, ElementTypes) { - { - using L = Layout; - SameType, L::ElementTypes>(); - SameType, decltype(L::Partial())::ElementTypes>(); - SameType, decltype(L::Partial(0))::ElementTypes>(); - } - { - using L = Layout; - SameType, L::ElementTypes>(); - SameType, - decltype(L::Partial())::ElementTypes>(); - SameType, - decltype(L::Partial(0))::ElementTypes>(); - } - { - using L = Layout; - SameType, L::ElementTypes>(); - SameType, - decltype(L::Partial())::ElementTypes>(); - SameType, - decltype(L::Partial(0))::ElementTypes>(); - SameType, - decltype(L::Partial(0, 0))::ElementTypes>(); - SameType, - decltype(L::Partial(0, 0, 0))::ElementTypes>(); - } -} - -TEST(Layout, OffsetByIndex) { - { - using L = Layout; - EXPECT_EQ(0, L::Partial().Offset<0>()); - EXPECT_EQ(0, L::Partial(3).Offset<0>()); - EXPECT_EQ(0, L(3).Offset<0>()); - } - { - using L = Layout; - EXPECT_EQ(0, L::Partial().Offset<0>()); - EXPECT_EQ(0, L::Partial(3).Offset<0>()); - EXPECT_EQ(12, L::Partial(3).Offset<1>()); - EXPECT_EQ(0, L::Partial(3, 5).Offset<0>()); - EXPECT_EQ(12, L::Partial(3, 5).Offset<1>()); - EXPECT_EQ(0, L(3, 5).Offset<0>()); - EXPECT_EQ(12, L(3, 5).Offset<1>()); - } - { - using L = Layout; - EXPECT_EQ(0, L::Partial().Offset<0>()); - EXPECT_EQ(0, L::Partial(0).Offset<0>()); - EXPECT_EQ(0, L::Partial(0).Offset<1>()); - EXPECT_EQ(0, L::Partial(1).Offset<0>()); - EXPECT_EQ(4, L::Partial(1).Offset<1>()); - EXPECT_EQ(0, L::Partial(5).Offset<0>()); - EXPECT_EQ(8, L::Partial(5).Offset<1>()); - EXPECT_EQ(0, L::Partial(0, 0).Offset<0>()); - EXPECT_EQ(0, L::Partial(0, 0).Offset<1>()); - EXPECT_EQ(0, L::Partial(0, 0).Offset<2>()); - EXPECT_EQ(0, L::Partial(1, 0).Offset<0>()); - EXPECT_EQ(4, L::Partial(1, 0).Offset<1>()); - EXPECT_EQ(8, L::Partial(1, 0).Offset<2>()); - EXPECT_EQ(0, L::Partial(5, 3).Offset<0>()); - EXPECT_EQ(8, L::Partial(5, 3).Offset<1>()); - EXPECT_EQ(24, L::Partial(5, 3).Offset<2>()); - EXPECT_EQ(0, L::Partial(0, 0, 0).Offset<0>()); - EXPECT_EQ(0, L::Partial(0, 0, 0).Offset<1>()); - EXPECT_EQ(0, L::Partial(0, 0, 0).Offset<2>()); - EXPECT_EQ(0, L::Partial(1, 0, 0).Offset<0>()); - EXPECT_EQ(4, L::Partial(1, 0, 0).Offset<1>()); - EXPECT_EQ(8, L::Partial(1, 0, 0).Offset<2>()); - EXPECT_EQ(0, L::Partial(5, 3, 1).Offset<0>()); - EXPECT_EQ(24, L::Partial(5, 3, 1).Offset<2>()); - EXPECT_EQ(8, L::Partial(5, 3, 1).Offset<1>()); - EXPECT_EQ(0, L(5, 3, 1).Offset<0>()); - EXPECT_EQ(24, L(5, 3, 1).Offset<2>()); - EXPECT_EQ(8, L(5, 3, 1).Offset<1>()); - } -} - -TEST(Layout, OffsetByType) { - { - using L = Layout; - EXPECT_EQ(0, L::Partial().Offset()); - EXPECT_EQ(0, L::Partial(3).Offset()); - EXPECT_EQ(0, L(3).Offset()); - } - { - using L = Layout; - EXPECT_EQ(0, L::Partial().Offset()); - EXPECT_EQ(0, L::Partial(0).Offset()); - EXPECT_EQ(0, L::Partial(0).Offset()); - EXPECT_EQ(0, L::Partial(1).Offset()); - EXPECT_EQ(4, L::Partial(1).Offset()); - EXPECT_EQ(0, L::Partial(5).Offset()); - EXPECT_EQ(8, L::Partial(5).Offset()); - EXPECT_EQ(0, L::Partial(0, 0).Offset()); - EXPECT_EQ(0, L::Partial(0, 0).Offset()); - EXPECT_EQ(0, L::Partial(0, 0).Offset()); - EXPECT_EQ(0, L::Partial(1, 0).Offset()); - EXPECT_EQ(4, L::Partial(1, 0).Offset()); - EXPECT_EQ(8, L::Partial(1, 0).Offset()); - EXPECT_EQ(0, L::Partial(5, 3).Offset()); - EXPECT_EQ(8, L::Partial(5, 3).Offset()); - EXPECT_EQ(24, L::Partial(5, 3).Offset()); - EXPECT_EQ(0, L::Partial(0, 0, 0).Offset()); - EXPECT_EQ(0, L::Partial(0, 0, 0).Offset()); - EXPECT_EQ(0, L::Partial(0, 0, 0).Offset()); - EXPECT_EQ(0, L::Partial(1, 0, 0).Offset()); - EXPECT_EQ(4, L::Partial(1, 0, 0).Offset()); - EXPECT_EQ(8, L::Partial(1, 0, 0).Offset()); - EXPECT_EQ(0, L::Partial(5, 3, 1).Offset()); - EXPECT_EQ(24, L::Partial(5, 3, 1).Offset()); - EXPECT_EQ(8, L::Partial(5, 3, 1).Offset()); - EXPECT_EQ(0, L(5, 3, 1).Offset()); - EXPECT_EQ(24, L(5, 3, 1).Offset()); - EXPECT_EQ(8, L(5, 3, 1).Offset()); - } -} - -TEST(Layout, Offsets) { - { - using L = Layout; - EXPECT_THAT(L::Partial().Offsets(), ElementsAre(0)); - EXPECT_THAT(L::Partial(3).Offsets(), ElementsAre(0)); - EXPECT_THAT(L(3).Offsets(), ElementsAre(0)); - } - { - using L = Layout; - EXPECT_THAT(L::Partial().Offsets(), ElementsAre(0)); - EXPECT_THAT(L::Partial(3).Offsets(), ElementsAre(0, 12)); - EXPECT_THAT(L::Partial(3, 5).Offsets(), ElementsAre(0, 12)); - EXPECT_THAT(L(3, 5).Offsets(), ElementsAre(0, 12)); - } - { - using L = Layout; - EXPECT_THAT(L::Partial().Offsets(), ElementsAre(0)); - EXPECT_THAT(L::Partial(1).Offsets(), ElementsAre(0, 4)); - EXPECT_THAT(L::Partial(5).Offsets(), ElementsAre(0, 8)); - EXPECT_THAT(L::Partial(0, 0).Offsets(), ElementsAre(0, 0, 0)); - EXPECT_THAT(L::Partial(1, 0).Offsets(), ElementsAre(0, 4, 8)); - EXPECT_THAT(L::Partial(5, 3).Offsets(), ElementsAre(0, 8, 24)); - EXPECT_THAT(L::Partial(0, 0, 0).Offsets(), ElementsAre(0, 0, 0)); - EXPECT_THAT(L::Partial(1, 0, 0).Offsets(), ElementsAre(0, 4, 8)); - EXPECT_THAT(L::Partial(5, 3, 1).Offsets(), ElementsAre(0, 8, 24)); - EXPECT_THAT(L(5, 3, 1).Offsets(), ElementsAre(0, 8, 24)); - } -} - -TEST(Layout, AllocSize) { - { - using L = Layout; - EXPECT_EQ(0, L::Partial(0).AllocSize()); - EXPECT_EQ(12, L::Partial(3).AllocSize()); - EXPECT_EQ(12, L(3).AllocSize()); - } - { - using L = Layout; - EXPECT_EQ(32, L::Partial(3, 5).AllocSize()); - EXPECT_EQ(32, L(3, 5).AllocSize()); - } - { - using L = Layout; - EXPECT_EQ(0, L::Partial(0, 0, 0).AllocSize()); - EXPECT_EQ(8, L::Partial(1, 0, 0).AllocSize()); - EXPECT_EQ(8, L::Partial(0, 1, 0).AllocSize()); - EXPECT_EQ(16, L::Partial(0, 0, 1).AllocSize()); - EXPECT_EQ(24, L::Partial(1, 1, 1).AllocSize()); - EXPECT_EQ(136, L::Partial(3, 5, 7).AllocSize()); - EXPECT_EQ(136, L(3, 5, 7).AllocSize()); - } -} - -TEST(Layout, SizeByIndex) { - { - using L = Layout; - EXPECT_EQ(0, L::Partial(0).Size<0>()); - EXPECT_EQ(3, L::Partial(3).Size<0>()); - EXPECT_EQ(3, L(3).Size<0>()); - } - { - using L = Layout; - EXPECT_EQ(0, L::Partial(0).Size<0>()); - EXPECT_EQ(3, L::Partial(3).Size<0>()); - EXPECT_EQ(3, L::Partial(3, 5).Size<0>()); - EXPECT_EQ(5, L::Partial(3, 5).Size<1>()); - EXPECT_EQ(3, L(3, 5).Size<0>()); - EXPECT_EQ(5, L(3, 5).Size<1>()); - } - { - using L = Layout; - EXPECT_EQ(3, L::Partial(3).Size<0>()); - EXPECT_EQ(3, L::Partial(3, 5).Size<0>()); - EXPECT_EQ(5, L::Partial(3, 5).Size<1>()); - EXPECT_EQ(3, L::Partial(3, 5, 7).Size<0>()); - EXPECT_EQ(5, L::Partial(3, 5, 7).Size<1>()); - EXPECT_EQ(7, L::Partial(3, 5, 7).Size<2>()); - EXPECT_EQ(3, L(3, 5, 7).Size<0>()); - EXPECT_EQ(5, L(3, 5, 7).Size<1>()); - EXPECT_EQ(7, L(3, 5, 7).Size<2>()); - } -} - -TEST(Layout, SizeByType) { - { - using L = Layout; - EXPECT_EQ(0, L::Partial(0).Size()); - EXPECT_EQ(3, L::Partial(3).Size()); - EXPECT_EQ(3, L(3).Size()); - } - { - using L = Layout; - EXPECT_EQ(3, L::Partial(3).Size()); - EXPECT_EQ(3, L::Partial(3, 5).Size()); - EXPECT_EQ(5, L::Partial(3, 5).Size()); - EXPECT_EQ(3, L::Partial(3, 5, 7).Size()); - EXPECT_EQ(5, L::Partial(3, 5, 7).Size()); - EXPECT_EQ(7, L::Partial(3, 5, 7).Size()); - EXPECT_EQ(3, L(3, 5, 7).Size()); - EXPECT_EQ(5, L(3, 5, 7).Size()); - EXPECT_EQ(7, L(3, 5, 7).Size()); - } -} - -TEST(Layout, Sizes) { - { - using L = Layout; - EXPECT_THAT(L::Partial().Sizes(), ElementsAre()); - EXPECT_THAT(L::Partial(3).Sizes(), ElementsAre(3)); - EXPECT_THAT(L(3).Sizes(), ElementsAre(3)); - } - { - using L = Layout; - EXPECT_THAT(L::Partial().Sizes(), ElementsAre()); - EXPECT_THAT(L::Partial(3).Sizes(), ElementsAre(3)); - EXPECT_THAT(L::Partial(3, 5).Sizes(), ElementsAre(3, 5)); - EXPECT_THAT(L(3, 5).Sizes(), ElementsAre(3, 5)); - } - { - using L = Layout; - EXPECT_THAT(L::Partial().Sizes(), ElementsAre()); - EXPECT_THAT(L::Partial(3).Sizes(), ElementsAre(3)); - EXPECT_THAT(L::Partial(3, 5).Sizes(), ElementsAre(3, 5)); - EXPECT_THAT(L::Partial(3, 5, 7).Sizes(), ElementsAre(3, 5, 7)); - EXPECT_THAT(L(3, 5, 7).Sizes(), ElementsAre(3, 5, 7)); - } -} - -TEST(Layout, PointerByIndex) { - alignas(max_align_t) const unsigned char p[100] = {}; - { - using L = Layout; - EXPECT_EQ(0, Distance(p, Type(L::Partial().Pointer<0>(p)))); - EXPECT_EQ(0, - Distance(p, Type(L::Partial(3).Pointer<0>(p)))); - EXPECT_EQ(0, Distance(p, Type(L(3).Pointer<0>(p)))); - } - { - using L = Layout; - EXPECT_EQ(0, Distance(p, Type(L::Partial().Pointer<0>(p)))); - EXPECT_EQ(0, - Distance(p, Type(L::Partial(3).Pointer<0>(p)))); - EXPECT_EQ(12, - Distance(p, Type(L::Partial(3).Pointer<1>(p)))); - EXPECT_EQ( - 0, Distance(p, Type(L::Partial(3, 5).Pointer<0>(p)))); - EXPECT_EQ( - 12, Distance(p, Type(L::Partial(3, 5).Pointer<1>(p)))); - EXPECT_EQ(0, Distance(p, Type(L(3, 5).Pointer<0>(p)))); - EXPECT_EQ(12, Distance(p, Type(L(3, 5).Pointer<1>(p)))); - } - { - using L = Layout; - EXPECT_EQ(0, Distance(p, Type(L::Partial().Pointer<0>(p)))); - EXPECT_EQ(0, Distance(p, Type(L::Partial(0).Pointer<0>(p)))); - EXPECT_EQ(0, - Distance(p, Type(L::Partial(0).Pointer<1>(p)))); - EXPECT_EQ(0, Distance(p, Type(L::Partial(1).Pointer<0>(p)))); - EXPECT_EQ(4, - Distance(p, Type(L::Partial(1).Pointer<1>(p)))); - EXPECT_EQ(0, Distance(p, Type(L::Partial(5).Pointer<0>(p)))); - EXPECT_EQ(8, - Distance(p, Type(L::Partial(5).Pointer<1>(p)))); - EXPECT_EQ(0, - Distance(p, Type(L::Partial(0, 0).Pointer<0>(p)))); - EXPECT_EQ( - 0, Distance(p, Type(L::Partial(0, 0).Pointer<1>(p)))); - EXPECT_EQ(0, - Distance(p, Type(L::Partial(0, 0).Pointer<2>(p)))); - EXPECT_EQ(0, - Distance(p, Type(L::Partial(1, 0).Pointer<0>(p)))); - EXPECT_EQ( - 4, Distance(p, Type(L::Partial(1, 0).Pointer<1>(p)))); - EXPECT_EQ(8, - Distance(p, Type(L::Partial(1, 0).Pointer<2>(p)))); - EXPECT_EQ(0, - Distance(p, Type(L::Partial(5, 3).Pointer<0>(p)))); - EXPECT_EQ( - 8, Distance(p, Type(L::Partial(5, 3).Pointer<1>(p)))); - EXPECT_EQ(24, - Distance(p, Type(L::Partial(5, 3).Pointer<2>(p)))); - EXPECT_EQ( - 0, Distance(p, Type(L::Partial(0, 0, 0).Pointer<0>(p)))); - EXPECT_EQ( - 0, - Distance(p, Type(L::Partial(0, 0, 0).Pointer<1>(p)))); - EXPECT_EQ( - 0, Distance(p, Type(L::Partial(0, 0, 0).Pointer<2>(p)))); - EXPECT_EQ( - 0, Distance(p, Type(L::Partial(1, 0, 0).Pointer<0>(p)))); - EXPECT_EQ( - 4, - Distance(p, Type(L::Partial(1, 0, 0).Pointer<1>(p)))); - EXPECT_EQ( - 8, Distance(p, Type(L::Partial(1, 0, 0).Pointer<2>(p)))); - EXPECT_EQ( - 0, Distance(p, Type(L::Partial(5, 3, 1).Pointer<0>(p)))); - EXPECT_EQ( - 24, - Distance(p, Type(L::Partial(5, 3, 1).Pointer<2>(p)))); - EXPECT_EQ( - 8, - Distance(p, Type(L::Partial(5, 3, 1).Pointer<1>(p)))); - EXPECT_EQ(0, Distance(p, Type(L(5, 3, 1).Pointer<0>(p)))); - EXPECT_EQ(24, Distance(p, Type(L(5, 3, 1).Pointer<2>(p)))); - EXPECT_EQ(8, Distance(p, Type(L(5, 3, 1).Pointer<1>(p)))); - } -} - -TEST(Layout, PointerByType) { - alignas(max_align_t) const unsigned char p[100] = {}; - { - using L = Layout; - EXPECT_EQ( - 0, Distance(p, Type(L::Partial().Pointer(p)))); - EXPECT_EQ( - 0, - Distance(p, Type(L::Partial(3).Pointer(p)))); - EXPECT_EQ(0, Distance(p, Type(L(3).Pointer(p)))); - } - { - using L = Layout; - EXPECT_EQ( - 0, Distance(p, Type(L::Partial().Pointer(p)))); - EXPECT_EQ( - 0, Distance(p, Type(L::Partial(0).Pointer(p)))); - EXPECT_EQ( - 0, - Distance(p, Type(L::Partial(0).Pointer(p)))); - EXPECT_EQ( - 0, Distance(p, Type(L::Partial(1).Pointer(p)))); - EXPECT_EQ( - 4, - Distance(p, Type(L::Partial(1).Pointer(p)))); - EXPECT_EQ( - 0, Distance(p, Type(L::Partial(5).Pointer(p)))); - EXPECT_EQ( - 8, - Distance(p, Type(L::Partial(5).Pointer(p)))); - EXPECT_EQ( - 0, - Distance(p, Type(L::Partial(0, 0).Pointer(p)))); - EXPECT_EQ(0, Distance(p, Type( - L::Partial(0, 0).Pointer(p)))); - EXPECT_EQ( - 0, - Distance(p, Type(L::Partial(0, 0).Pointer(p)))); - EXPECT_EQ( - 0, - Distance(p, Type(L::Partial(1, 0).Pointer(p)))); - EXPECT_EQ(4, Distance(p, Type( - L::Partial(1, 0).Pointer(p)))); - EXPECT_EQ( - 8, - Distance(p, Type(L::Partial(1, 0).Pointer(p)))); - EXPECT_EQ( - 0, - Distance(p, Type(L::Partial(5, 3).Pointer(p)))); - EXPECT_EQ(8, Distance(p, Type( - L::Partial(5, 3).Pointer(p)))); - EXPECT_EQ( - 24, - Distance(p, Type(L::Partial(5, 3).Pointer(p)))); - EXPECT_EQ(0, Distance(p, Type( - L::Partial(0, 0, 0).Pointer(p)))); - EXPECT_EQ(0, Distance(p, Type( - L::Partial(0, 0, 0).Pointer(p)))); - EXPECT_EQ(0, Distance(p, Type( - L::Partial(0, 0, 0).Pointer(p)))); - EXPECT_EQ(0, Distance(p, Type( - L::Partial(1, 0, 0).Pointer(p)))); - EXPECT_EQ(4, Distance(p, Type( - L::Partial(1, 0, 0).Pointer(p)))); - EXPECT_EQ(8, Distance(p, Type( - L::Partial(1, 0, 0).Pointer(p)))); - EXPECT_EQ(0, Distance(p, Type( - L::Partial(5, 3, 1).Pointer(p)))); - EXPECT_EQ(24, Distance(p, Type( - L::Partial(5, 3, 1).Pointer(p)))); - EXPECT_EQ(8, Distance(p, Type( - L::Partial(5, 3, 1).Pointer(p)))); - EXPECT_EQ(24, - Distance(p, Type(L(5, 3, 1).Pointer(p)))); - EXPECT_EQ( - 8, Distance(p, Type(L(5, 3, 1).Pointer(p)))); - } -} - -TEST(Layout, MutablePointerByIndex) { - alignas(max_align_t) unsigned char p[100]; - { - using L = Layout; - EXPECT_EQ(0, Distance(p, Type(L::Partial().Pointer<0>(p)))); - EXPECT_EQ(0, Distance(p, Type(L::Partial(3).Pointer<0>(p)))); - EXPECT_EQ(0, Distance(p, Type(L(3).Pointer<0>(p)))); - } - { - using L = Layout; - EXPECT_EQ(0, Distance(p, Type(L::Partial().Pointer<0>(p)))); - EXPECT_EQ(0, Distance(p, Type(L::Partial(3).Pointer<0>(p)))); - EXPECT_EQ(12, Distance(p, Type(L::Partial(3).Pointer<1>(p)))); - EXPECT_EQ(0, Distance(p, Type(L::Partial(3, 5).Pointer<0>(p)))); - EXPECT_EQ(12, Distance(p, Type(L::Partial(3, 5).Pointer<1>(p)))); - EXPECT_EQ(0, Distance(p, Type(L(3, 5).Pointer<0>(p)))); - EXPECT_EQ(12, Distance(p, Type(L(3, 5).Pointer<1>(p)))); - } - { - using L = Layout; - EXPECT_EQ(0, Distance(p, Type(L::Partial().Pointer<0>(p)))); - EXPECT_EQ(0, Distance(p, Type(L::Partial(0).Pointer<0>(p)))); - EXPECT_EQ(0, Distance(p, Type(L::Partial(0).Pointer<1>(p)))); - EXPECT_EQ(0, Distance(p, Type(L::Partial(1).Pointer<0>(p)))); - EXPECT_EQ(4, Distance(p, Type(L::Partial(1).Pointer<1>(p)))); - EXPECT_EQ(0, Distance(p, Type(L::Partial(5).Pointer<0>(p)))); - EXPECT_EQ(8, Distance(p, Type(L::Partial(5).Pointer<1>(p)))); - EXPECT_EQ(0, Distance(p, Type(L::Partial(0, 0).Pointer<0>(p)))); - EXPECT_EQ(0, Distance(p, Type(L::Partial(0, 0).Pointer<1>(p)))); - EXPECT_EQ(0, Distance(p, Type(L::Partial(0, 0).Pointer<2>(p)))); - EXPECT_EQ(0, Distance(p, Type(L::Partial(1, 0).Pointer<0>(p)))); - EXPECT_EQ(4, Distance(p, Type(L::Partial(1, 0).Pointer<1>(p)))); - EXPECT_EQ(8, Distance(p, Type(L::Partial(1, 0).Pointer<2>(p)))); - EXPECT_EQ(0, Distance(p, Type(L::Partial(5, 3).Pointer<0>(p)))); - EXPECT_EQ(8, Distance(p, Type(L::Partial(5, 3).Pointer<1>(p)))); - EXPECT_EQ(24, Distance(p, Type(L::Partial(5, 3).Pointer<2>(p)))); - EXPECT_EQ(0, Distance(p, Type(L::Partial(0, 0, 0).Pointer<0>(p)))); - EXPECT_EQ(0, - Distance(p, Type(L::Partial(0, 0, 0).Pointer<1>(p)))); - EXPECT_EQ(0, Distance(p, Type(L::Partial(0, 0, 0).Pointer<2>(p)))); - EXPECT_EQ(0, Distance(p, Type(L::Partial(1, 0, 0).Pointer<0>(p)))); - EXPECT_EQ(4, - Distance(p, Type(L::Partial(1, 0, 0).Pointer<1>(p)))); - EXPECT_EQ(8, Distance(p, Type(L::Partial(1, 0, 0).Pointer<2>(p)))); - EXPECT_EQ(0, Distance(p, Type(L::Partial(5, 3, 1).Pointer<0>(p)))); - EXPECT_EQ(24, - Distance(p, Type(L::Partial(5, 3, 1).Pointer<2>(p)))); - EXPECT_EQ(8, - Distance(p, Type(L::Partial(5, 3, 1).Pointer<1>(p)))); - EXPECT_EQ(0, Distance(p, Type(L(5, 3, 1).Pointer<0>(p)))); - EXPECT_EQ(24, Distance(p, Type(L(5, 3, 1).Pointer<2>(p)))); - EXPECT_EQ(8, Distance(p, Type(L(5, 3, 1).Pointer<1>(p)))); - } -} - -TEST(Layout, MutablePointerByType) { - alignas(max_align_t) unsigned char p[100]; - { - using L = Layout; - EXPECT_EQ(0, Distance(p, Type(L::Partial().Pointer(p)))); - EXPECT_EQ(0, - Distance(p, Type(L::Partial(3).Pointer(p)))); - EXPECT_EQ(0, Distance(p, Type(L(3).Pointer(p)))); - } - { - using L = Layout; - EXPECT_EQ(0, Distance(p, Type(L::Partial().Pointer(p)))); - EXPECT_EQ(0, Distance(p, Type(L::Partial(0).Pointer(p)))); - EXPECT_EQ(0, - Distance(p, Type(L::Partial(0).Pointer(p)))); - EXPECT_EQ(0, Distance(p, Type(L::Partial(1).Pointer(p)))); - EXPECT_EQ(4, - Distance(p, Type(L::Partial(1).Pointer(p)))); - EXPECT_EQ(0, Distance(p, Type(L::Partial(5).Pointer(p)))); - EXPECT_EQ(8, - Distance(p, Type(L::Partial(5).Pointer(p)))); - EXPECT_EQ(0, - Distance(p, Type(L::Partial(0, 0).Pointer(p)))); - EXPECT_EQ( - 0, Distance(p, Type(L::Partial(0, 0).Pointer(p)))); - EXPECT_EQ(0, - Distance(p, Type(L::Partial(0, 0).Pointer(p)))); - EXPECT_EQ(0, - Distance(p, Type(L::Partial(1, 0).Pointer(p)))); - EXPECT_EQ( - 4, Distance(p, Type(L::Partial(1, 0).Pointer(p)))); - EXPECT_EQ(8, - Distance(p, Type(L::Partial(1, 0).Pointer(p)))); - EXPECT_EQ(0, - Distance(p, Type(L::Partial(5, 3).Pointer(p)))); - EXPECT_EQ( - 8, Distance(p, Type(L::Partial(5, 3).Pointer(p)))); - EXPECT_EQ(24, - Distance(p, Type(L::Partial(5, 3).Pointer(p)))); - EXPECT_EQ( - 0, Distance(p, Type(L::Partial(0, 0, 0).Pointer(p)))); - EXPECT_EQ( - 0, - Distance(p, Type(L::Partial(0, 0, 0).Pointer(p)))); - EXPECT_EQ( - 0, Distance(p, Type(L::Partial(0, 0, 0).Pointer(p)))); - EXPECT_EQ( - 0, Distance(p, Type(L::Partial(1, 0, 0).Pointer(p)))); - EXPECT_EQ( - 4, - Distance(p, Type(L::Partial(1, 0, 0).Pointer(p)))); - EXPECT_EQ( - 8, Distance(p, Type(L::Partial(1, 0, 0).Pointer(p)))); - EXPECT_EQ( - 0, Distance(p, Type(L::Partial(5, 3, 1).Pointer(p)))); - EXPECT_EQ( - 24, Distance(p, Type(L::Partial(5, 3, 1).Pointer(p)))); - EXPECT_EQ( - 8, - Distance(p, Type(L::Partial(5, 3, 1).Pointer(p)))); - EXPECT_EQ(0, Distance(p, Type(L(5, 3, 1).Pointer(p)))); - EXPECT_EQ(24, Distance(p, Type(L(5, 3, 1).Pointer(p)))); - EXPECT_EQ(8, Distance(p, Type(L(5, 3, 1).Pointer(p)))); - } -} - -TEST(Layout, Pointers) { - alignas(max_align_t) const unsigned char p[100] = {}; - using L = Layout; - { - const auto x = L::Partial(); - EXPECT_EQ(std::make_tuple(x.Pointer<0>(p)), - Type>(x.Pointers(p))); - } - { - const auto x = L::Partial(1); - EXPECT_EQ(std::make_tuple(x.Pointer<0>(p), x.Pointer<1>(p)), - (Type>(x.Pointers(p)))); - } - { - const auto x = L::Partial(1, 2); - EXPECT_EQ( - std::make_tuple(x.Pointer<0>(p), x.Pointer<1>(p), x.Pointer<2>(p)), - (Type>( - x.Pointers(p)))); - } - { - const auto x = L::Partial(1, 2, 3); - EXPECT_EQ( - std::make_tuple(x.Pointer<0>(p), x.Pointer<1>(p), x.Pointer<2>(p)), - (Type>( - x.Pointers(p)))); - } - { - const L x(1, 2, 3); - EXPECT_EQ( - std::make_tuple(x.Pointer<0>(p), x.Pointer<1>(p), x.Pointer<2>(p)), - (Type>( - x.Pointers(p)))); - } -} - -TEST(Layout, MutablePointers) { - alignas(max_align_t) unsigned char p[100]; - using L = Layout; - { - const auto x = L::Partial(); - EXPECT_EQ(std::make_tuple(x.Pointer<0>(p)), - Type>(x.Pointers(p))); - } - { - const auto x = L::Partial(1); - EXPECT_EQ(std::make_tuple(x.Pointer<0>(p), x.Pointer<1>(p)), - (Type>(x.Pointers(p)))); - } - { - const auto x = L::Partial(1, 2); - EXPECT_EQ( - std::make_tuple(x.Pointer<0>(p), x.Pointer<1>(p), x.Pointer<2>(p)), - (Type>(x.Pointers(p)))); - } - { - const auto x = L::Partial(1, 2, 3); - EXPECT_EQ( - std::make_tuple(x.Pointer<0>(p), x.Pointer<1>(p), x.Pointer<2>(p)), - (Type>(x.Pointers(p)))); - } - { - const L x(1, 2, 3); - EXPECT_EQ( - std::make_tuple(x.Pointer<0>(p), x.Pointer<1>(p), x.Pointer<2>(p)), - (Type>(x.Pointers(p)))); - } -} - -TEST(Layout, SliceByIndexSize) { - alignas(max_align_t) const unsigned char p[100] = {}; - { - using L = Layout; - EXPECT_EQ(0, L::Partial(0).Slice<0>(p).size()); - EXPECT_EQ(3, L::Partial(3).Slice<0>(p).size()); - EXPECT_EQ(3, L(3).Slice<0>(p).size()); - } - { - using L = Layout; - EXPECT_EQ(3, L::Partial(3).Slice<0>(p).size()); - EXPECT_EQ(5, L::Partial(3, 5).Slice<1>(p).size()); - EXPECT_EQ(5, L(3, 5).Slice<1>(p).size()); - } - { - using L = Layout; - EXPECT_EQ(3, L::Partial(3).Slice<0>(p).size()); - EXPECT_EQ(3, L::Partial(3, 5).Slice<0>(p).size()); - EXPECT_EQ(5, L::Partial(3, 5).Slice<1>(p).size()); - EXPECT_EQ(3, L::Partial(3, 5, 7).Slice<0>(p).size()); - EXPECT_EQ(5, L::Partial(3, 5, 7).Slice<1>(p).size()); - EXPECT_EQ(7, L::Partial(3, 5, 7).Slice<2>(p).size()); - EXPECT_EQ(3, L(3, 5, 7).Slice<0>(p).size()); - EXPECT_EQ(5, L(3, 5, 7).Slice<1>(p).size()); - EXPECT_EQ(7, L(3, 5, 7).Slice<2>(p).size()); - } -} - -TEST(Layout, SliceByTypeSize) { - alignas(max_align_t) const unsigned char p[100] = {}; - { - using L = Layout; - EXPECT_EQ(0, L::Partial(0).Slice(p).size()); - EXPECT_EQ(3, L::Partial(3).Slice(p).size()); - EXPECT_EQ(3, L(3).Slice(p).size()); - } - { - using L = Layout; - EXPECT_EQ(3, L::Partial(3).Slice(p).size()); - EXPECT_EQ(3, L::Partial(3, 5).Slice(p).size()); - EXPECT_EQ(5, L::Partial(3, 5).Slice(p).size()); - EXPECT_EQ(3, L::Partial(3, 5, 7).Slice(p).size()); - EXPECT_EQ(5, L::Partial(3, 5, 7).Slice(p).size()); - EXPECT_EQ(7, L::Partial(3, 5, 7).Slice(p).size()); - EXPECT_EQ(3, L(3, 5, 7).Slice(p).size()); - EXPECT_EQ(5, L(3, 5, 7).Slice(p).size()); - EXPECT_EQ(7, L(3, 5, 7).Slice(p).size()); - } -} - -TEST(Layout, MutableSliceByIndexSize) { - alignas(max_align_t) unsigned char p[100]; - { - using L = Layout; - EXPECT_EQ(0, L::Partial(0).Slice<0>(p).size()); - EXPECT_EQ(3, L::Partial(3).Slice<0>(p).size()); - EXPECT_EQ(3, L(3).Slice<0>(p).size()); - } - { - using L = Layout; - EXPECT_EQ(3, L::Partial(3).Slice<0>(p).size()); - EXPECT_EQ(5, L::Partial(3, 5).Slice<1>(p).size()); - EXPECT_EQ(5, L(3, 5).Slice<1>(p).size()); - } - { - using L = Layout; - EXPECT_EQ(3, L::Partial(3).Slice<0>(p).size()); - EXPECT_EQ(3, L::Partial(3, 5).Slice<0>(p).size()); - EXPECT_EQ(5, L::Partial(3, 5).Slice<1>(p).size()); - EXPECT_EQ(3, L::Partial(3, 5, 7).Slice<0>(p).size()); - EXPECT_EQ(5, L::Partial(3, 5, 7).Slice<1>(p).size()); - EXPECT_EQ(7, L::Partial(3, 5, 7).Slice<2>(p).size()); - EXPECT_EQ(3, L(3, 5, 7).Slice<0>(p).size()); - EXPECT_EQ(5, L(3, 5, 7).Slice<1>(p).size()); - EXPECT_EQ(7, L(3, 5, 7).Slice<2>(p).size()); - } -} - -TEST(Layout, MutableSliceByTypeSize) { - alignas(max_align_t) unsigned char p[100]; - { - using L = Layout; - EXPECT_EQ(0, L::Partial(0).Slice(p).size()); - EXPECT_EQ(3, L::Partial(3).Slice(p).size()); - EXPECT_EQ(3, L(3).Slice(p).size()); - } - { - using L = Layout; - EXPECT_EQ(3, L::Partial(3).Slice(p).size()); - EXPECT_EQ(3, L::Partial(3, 5).Slice(p).size()); - EXPECT_EQ(5, L::Partial(3, 5).Slice(p).size()); - EXPECT_EQ(3, L::Partial(3, 5, 7).Slice(p).size()); - EXPECT_EQ(5, L::Partial(3, 5, 7).Slice(p).size()); - EXPECT_EQ(7, L::Partial(3, 5, 7).Slice(p).size()); - EXPECT_EQ(3, L(3, 5, 7).Slice(p).size()); - EXPECT_EQ(5, L(3, 5, 7).Slice(p).size()); - EXPECT_EQ(7, L(3, 5, 7).Slice(p).size()); - } -} - -TEST(Layout, SliceByIndexData) { - alignas(max_align_t) const unsigned char p[100] = {}; - { - using L = Layout; - EXPECT_EQ( - 0, Distance( - p, Type>(L::Partial(0).Slice<0>(p)).data())); - EXPECT_EQ( - 0, Distance( - p, Type>(L::Partial(3).Slice<0>(p)).data())); - EXPECT_EQ(0, - Distance(p, Type>(L(3).Slice<0>(p)).data())); - } - { - using L = Layout; - EXPECT_EQ( - 0, Distance( - p, Type>(L::Partial(3).Slice<0>(p)).data())); - EXPECT_EQ( - 0, - Distance( - p, Type>(L::Partial(3, 5).Slice<0>(p)).data())); - EXPECT_EQ( - 12, - Distance( - p, Type>(L::Partial(3, 5).Slice<1>(p)).data())); - EXPECT_EQ( - 0, Distance(p, Type>(L(3, 5).Slice<0>(p)).data())); - EXPECT_EQ( - 12, Distance(p, Type>(L(3, 5).Slice<1>(p)).data())); - } - { - using L = Layout; - EXPECT_EQ( - 0, Distance( - p, Type>(L::Partial(0).Slice<0>(p)).data())); - EXPECT_EQ( - 0, Distance( - p, Type>(L::Partial(1).Slice<0>(p)).data())); - EXPECT_EQ( - 0, Distance( - p, Type>(L::Partial(5).Slice<0>(p)).data())); - EXPECT_EQ( - 0, - Distance( - p, Type>(L::Partial(0, 0).Slice<0>(p)).data())); - EXPECT_EQ( - 0, - Distance( - p, Type>(L::Partial(0, 0).Slice<1>(p)).data())); - EXPECT_EQ( - 0, - Distance( - p, Type>(L::Partial(1, 0).Slice<0>(p)).data())); - EXPECT_EQ( - 4, - Distance( - p, Type>(L::Partial(1, 0).Slice<1>(p)).data())); - EXPECT_EQ( - 0, - Distance( - p, Type>(L::Partial(5, 3).Slice<0>(p)).data())); - EXPECT_EQ( - 8, - Distance( - p, Type>(L::Partial(5, 3).Slice<1>(p)).data())); - EXPECT_EQ( - 0, - Distance( - p, - Type>(L::Partial(0, 0, 0).Slice<0>(p)).data())); - EXPECT_EQ( - 0, - Distance( - p, - Type>(L::Partial(0, 0, 0).Slice<1>(p)).data())); - EXPECT_EQ( - 0, - Distance( - p, - Type>(L::Partial(0, 0, 0).Slice<2>(p)).data())); - EXPECT_EQ( - 0, - Distance( - p, - Type>(L::Partial(1, 0, 0).Slice<0>(p)).data())); - EXPECT_EQ( - 4, - Distance( - p, - Type>(L::Partial(1, 0, 0).Slice<1>(p)).data())); - EXPECT_EQ( - 8, - Distance( - p, - Type>(L::Partial(1, 0, 0).Slice<2>(p)).data())); - EXPECT_EQ( - 0, - Distance( - p, - Type>(L::Partial(5, 3, 1).Slice<0>(p)).data())); - EXPECT_EQ( - 24, - Distance( - p, - Type>(L::Partial(5, 3, 1).Slice<2>(p)).data())); - EXPECT_EQ( - 8, - Distance( - p, - Type>(L::Partial(5, 3, 1).Slice<1>(p)).data())); - EXPECT_EQ( - 0, - Distance(p, Type>(L(5, 3, 1).Slice<0>(p)).data())); - EXPECT_EQ( - 24, - Distance(p, Type>(L(5, 3, 1).Slice<2>(p)).data())); - EXPECT_EQ( - 8, - Distance(p, Type>(L(5, 3, 1).Slice<1>(p)).data())); - } -} - -TEST(Layout, SliceByTypeData) { - alignas(max_align_t) const unsigned char p[100] = {}; - { - using L = Layout; - EXPECT_EQ( - 0, - Distance( - p, - Type>(L::Partial(0).Slice(p)).data())); - EXPECT_EQ( - 0, - Distance( - p, - Type>(L::Partial(3).Slice(p)).data())); - EXPECT_EQ( - 0, - Distance(p, Type>(L(3).Slice(p)).data())); - } - { - using L = Layout; - EXPECT_EQ( - 0, - Distance( - p, - Type>(L::Partial(0).Slice(p)).data())); - EXPECT_EQ( - 0, - Distance( - p, - Type>(L::Partial(1).Slice(p)).data())); - EXPECT_EQ( - 0, - Distance( - p, - Type>(L::Partial(5).Slice(p)).data())); - EXPECT_EQ( - 0, - Distance(p, Type>(L::Partial(0, 0).Slice(p)) - .data())); - EXPECT_EQ(0, Distance(p, Type>( - L::Partial(0, 0).Slice(p)) - .data())); - EXPECT_EQ( - 0, - Distance(p, Type>(L::Partial(1, 0).Slice(p)) - .data())); - EXPECT_EQ(4, Distance(p, Type>( - L::Partial(1, 0).Slice(p)) - .data())); - EXPECT_EQ( - 0, - Distance(p, Type>(L::Partial(5, 3).Slice(p)) - .data())); - EXPECT_EQ(8, Distance(p, Type>( - L::Partial(5, 3).Slice(p)) - .data())); - EXPECT_EQ(0, Distance(p, Type>( - L::Partial(0, 0, 0).Slice(p)) - .data())); - EXPECT_EQ(0, Distance(p, Type>( - L::Partial(0, 0, 0).Slice(p)) - .data())); - EXPECT_EQ(0, Distance(p, Type>( - L::Partial(0, 0, 0).Slice(p)) - .data())); - EXPECT_EQ(0, Distance(p, Type>( - L::Partial(1, 0, 0).Slice(p)) - .data())); - EXPECT_EQ(4, Distance(p, Type>( - L::Partial(1, 0, 0).Slice(p)) - .data())); - EXPECT_EQ(8, Distance(p, Type>( - L::Partial(1, 0, 0).Slice(p)) - .data())); - EXPECT_EQ(0, Distance(p, Type>( - L::Partial(5, 3, 1).Slice(p)) - .data())); - EXPECT_EQ(24, Distance(p, Type>( - L::Partial(5, 3, 1).Slice(p)) - .data())); - EXPECT_EQ(8, Distance(p, Type>( - L::Partial(5, 3, 1).Slice(p)) - .data())); - EXPECT_EQ( - 0, - Distance(p, - Type>(L(5, 3, 1).Slice(p)).data())); - EXPECT_EQ( - 24, - Distance(p, - Type>(L(5, 3, 1).Slice(p)).data())); - EXPECT_EQ( - 8, - Distance( - p, Type>(L(5, 3, 1).Slice(p)).data())); - } -} - -TEST(Layout, MutableSliceByIndexData) { - alignas(max_align_t) unsigned char p[100]; - { - using L = Layout; - EXPECT_EQ( - 0, Distance(p, Type>(L::Partial(0).Slice<0>(p)).data())); - EXPECT_EQ( - 0, Distance(p, Type>(L::Partial(3).Slice<0>(p)).data())); - EXPECT_EQ(0, Distance(p, Type>(L(3).Slice<0>(p)).data())); - } - { - using L = Layout; - EXPECT_EQ( - 0, Distance(p, Type>(L::Partial(3).Slice<0>(p)).data())); - EXPECT_EQ( - 0, - Distance(p, Type>(L::Partial(3, 5).Slice<0>(p)).data())); - EXPECT_EQ( - 12, - Distance(p, Type>(L::Partial(3, 5).Slice<1>(p)).data())); - EXPECT_EQ(0, Distance(p, Type>(L(3, 5).Slice<0>(p)).data())); - EXPECT_EQ(12, Distance(p, Type>(L(3, 5).Slice<1>(p)).data())); - } - { - using L = Layout; - EXPECT_EQ( - 0, Distance(p, Type>(L::Partial(0).Slice<0>(p)).data())); - EXPECT_EQ( - 0, Distance(p, Type>(L::Partial(1).Slice<0>(p)).data())); - EXPECT_EQ( - 0, Distance(p, Type>(L::Partial(5).Slice<0>(p)).data())); - EXPECT_EQ( - 0, - Distance(p, Type>(L::Partial(0, 0).Slice<0>(p)).data())); - EXPECT_EQ( - 0, - Distance(p, Type>(L::Partial(0, 0).Slice<1>(p)).data())); - EXPECT_EQ( - 0, - Distance(p, Type>(L::Partial(1, 0).Slice<0>(p)).data())); - EXPECT_EQ( - 4, - Distance(p, Type>(L::Partial(1, 0).Slice<1>(p)).data())); - EXPECT_EQ( - 0, - Distance(p, Type>(L::Partial(5, 3).Slice<0>(p)).data())); - EXPECT_EQ( - 8, - Distance(p, Type>(L::Partial(5, 3).Slice<1>(p)).data())); - EXPECT_EQ( - 0, Distance( - p, Type>(L::Partial(0, 0, 0).Slice<0>(p)).data())); - EXPECT_EQ( - 0, Distance( - p, Type>(L::Partial(0, 0, 0).Slice<1>(p)).data())); - EXPECT_EQ( - 0, Distance( - p, Type>(L::Partial(0, 0, 0).Slice<2>(p)).data())); - EXPECT_EQ( - 0, Distance( - p, Type>(L::Partial(1, 0, 0).Slice<0>(p)).data())); - EXPECT_EQ( - 4, Distance( - p, Type>(L::Partial(1, 0, 0).Slice<1>(p)).data())); - EXPECT_EQ( - 8, Distance( - p, Type>(L::Partial(1, 0, 0).Slice<2>(p)).data())); - EXPECT_EQ( - 0, Distance( - p, Type>(L::Partial(5, 3, 1).Slice<0>(p)).data())); - EXPECT_EQ( - 24, Distance( - p, Type>(L::Partial(5, 3, 1).Slice<2>(p)).data())); - EXPECT_EQ( - 8, Distance( - p, Type>(L::Partial(5, 3, 1).Slice<1>(p)).data())); - EXPECT_EQ(0, - Distance(p, Type>(L(5, 3, 1).Slice<0>(p)).data())); - EXPECT_EQ(24, - Distance(p, Type>(L(5, 3, 1).Slice<2>(p)).data())); - EXPECT_EQ(8, - Distance(p, Type>(L(5, 3, 1).Slice<1>(p)).data())); - } -} - -TEST(Layout, MutableSliceByTypeData) { - alignas(max_align_t) unsigned char p[100]; - { - using L = Layout; - EXPECT_EQ( - 0, Distance( - p, Type>(L::Partial(0).Slice(p)).data())); - EXPECT_EQ( - 0, Distance( - p, Type>(L::Partial(3).Slice(p)).data())); - EXPECT_EQ(0, - Distance(p, Type>(L(3).Slice(p)).data())); - } - { - using L = Layout; - EXPECT_EQ( - 0, - Distance(p, Type>(L::Partial(0).Slice(p)).data())); - EXPECT_EQ( - 0, - Distance(p, Type>(L::Partial(1).Slice(p)).data())); - EXPECT_EQ( - 0, - Distance(p, Type>(L::Partial(5).Slice(p)).data())); - EXPECT_EQ( - 0, - Distance(p, - Type>(L::Partial(0, 0).Slice(p)).data())); - EXPECT_EQ( - 0, - Distance( - p, Type>(L::Partial(0, 0).Slice(p)).data())); - EXPECT_EQ( - 0, - Distance(p, - Type>(L::Partial(1, 0).Slice(p)).data())); - EXPECT_EQ( - 4, - Distance( - p, Type>(L::Partial(1, 0).Slice(p)).data())); - EXPECT_EQ( - 0, - Distance(p, - Type>(L::Partial(5, 3).Slice(p)).data())); - EXPECT_EQ( - 8, - Distance( - p, Type>(L::Partial(5, 3).Slice(p)).data())); - EXPECT_EQ( - 0, - Distance( - p, - Type>(L::Partial(0, 0, 0).Slice(p)).data())); - EXPECT_EQ( - 0, - Distance( - p, - Type>(L::Partial(0, 0, 0).Slice(p)).data())); - EXPECT_EQ( - 0, - Distance( - p, - Type>(L::Partial(0, 0, 0).Slice(p)).data())); - EXPECT_EQ( - 0, - Distance( - p, - Type>(L::Partial(1, 0, 0).Slice(p)).data())); - EXPECT_EQ( - 4, - Distance( - p, - Type>(L::Partial(1, 0, 0).Slice(p)).data())); - EXPECT_EQ( - 8, - Distance( - p, - Type>(L::Partial(1, 0, 0).Slice(p)).data())); - EXPECT_EQ( - 0, - Distance( - p, - Type>(L::Partial(5, 3, 1).Slice(p)).data())); - EXPECT_EQ( - 24, - Distance( - p, - Type>(L::Partial(5, 3, 1).Slice(p)).data())); - EXPECT_EQ( - 8, - Distance( - p, - Type>(L::Partial(5, 3, 1).Slice(p)).data())); - EXPECT_EQ( - 0, Distance(p, Type>(L(5, 3, 1).Slice(p)).data())); - EXPECT_EQ( - 24, - Distance(p, Type>(L(5, 3, 1).Slice(p)).data())); - EXPECT_EQ( - 8, - Distance(p, Type>(L(5, 3, 1).Slice(p)).data())); - } -} - -MATCHER_P(IsSameSlice, slice, "") { - return arg.size() == slice.size() && arg.data() == slice.data(); -} - -template -class TupleMatcher { - public: - explicit TupleMatcher(M... matchers) : matchers_(std::move(matchers)...) {} - - template - bool MatchAndExplain(const Tuple& p, - testing::MatchResultListener* /* listener */) const { - static_assert(std::tuple_size::value == sizeof...(M), ""); - return MatchAndExplainImpl( - p, absl::make_index_sequence::value>{}); - } - - // For the matcher concept. Left empty as we don't really need the diagnostics - // right now. - void DescribeTo(::std::ostream* os) const {} - void DescribeNegationTo(::std::ostream* os) const {} - - private: - template - bool MatchAndExplainImpl(const Tuple& p, absl::index_sequence) const { - // Using std::min as a simple variadic "and". - return std::min( - {true, testing::SafeMatcherCast< - const typename std::tuple_element::type&>( - std::get(matchers_)) - .Matches(std::get(p))...}); - } - - std::tuple matchers_; -}; - -template -testing::PolymorphicMatcher> Tuple(M... matchers) { - return testing::MakePolymorphicMatcher( - TupleMatcher(std::move(matchers)...)); -} - -TEST(Layout, Slices) { - alignas(max_align_t) const unsigned char p[100] = {}; - using L = Layout; - { - const auto x = L::Partial(); - EXPECT_THAT(Type>(x.Slices(p)), Tuple()); - } - { - const auto x = L::Partial(1); - EXPECT_THAT(Type>>(x.Slices(p)), - Tuple(IsSameSlice(x.Slice<0>(p)))); - } - { - const auto x = L::Partial(1, 2); - EXPECT_THAT( - (Type, Span>>(x.Slices(p))), - Tuple(IsSameSlice(x.Slice<0>(p)), IsSameSlice(x.Slice<1>(p)))); - } - { - const auto x = L::Partial(1, 2, 3); - EXPECT_THAT((Type, Span, - Span>>(x.Slices(p))), - Tuple(IsSameSlice(x.Slice<0>(p)), IsSameSlice(x.Slice<1>(p)), - IsSameSlice(x.Slice<2>(p)))); - } - { - const L x(1, 2, 3); - EXPECT_THAT((Type, Span, - Span>>(x.Slices(p))), - Tuple(IsSameSlice(x.Slice<0>(p)), IsSameSlice(x.Slice<1>(p)), - IsSameSlice(x.Slice<2>(p)))); - } -} - -TEST(Layout, MutableSlices) { - alignas(max_align_t) unsigned char p[100] = {}; - using L = Layout; - { - const auto x = L::Partial(); - EXPECT_THAT(Type>(x.Slices(p)), Tuple()); - } - { - const auto x = L::Partial(1); - EXPECT_THAT(Type>>(x.Slices(p)), - Tuple(IsSameSlice(x.Slice<0>(p)))); - } - { - const auto x = L::Partial(1, 2); - EXPECT_THAT((Type, Span>>(x.Slices(p))), - Tuple(IsSameSlice(x.Slice<0>(p)), IsSameSlice(x.Slice<1>(p)))); - } - { - const auto x = L::Partial(1, 2, 3); - EXPECT_THAT((Type, Span, Span>>( - x.Slices(p))), - Tuple(IsSameSlice(x.Slice<0>(p)), IsSameSlice(x.Slice<1>(p)), - IsSameSlice(x.Slice<2>(p)))); - } - { - const L x(1, 2, 3); - EXPECT_THAT((Type, Span, Span>>( - x.Slices(p))), - Tuple(IsSameSlice(x.Slice<0>(p)), IsSameSlice(x.Slice<1>(p)), - IsSameSlice(x.Slice<2>(p)))); - } -} - -TEST(Layout, UnalignedTypes) { - constexpr Layout x(1, 2, 3); - alignas(max_align_t) unsigned char p[x.AllocSize() + 1]; - EXPECT_THAT(x.Pointers(p + 1), Tuple(p + 1, p + 2, p + 4)); -} - -TEST(Layout, CustomAlignment) { - constexpr Layout> x(1, 2); - alignas(max_align_t) unsigned char p[x.AllocSize()]; - EXPECT_EQ(10, x.AllocSize()); - EXPECT_THAT(x.Pointers(p), Tuple(p + 0, p + 8)); -} - -TEST(Layout, OverAligned) { - constexpr size_t M = alignof(max_align_t); - constexpr Layout> x(1, 3); -#ifdef __GNUC__ - // Using __attribute__ ((aligned ())) instead of alignas to bypass a gcc bug: - // https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89357 - __attribute__((aligned(2 * M))) unsigned char p[x.AllocSize()]; -#else - alignas(2 * M) unsigned char p[x.AllocSize()]; -#endif - EXPECT_EQ(2 * M + 3, x.AllocSize()); - EXPECT_THAT(x.Pointers(p), Tuple(p + 0, p + 2 * M)); -} - -TEST(Layout, Alignment) { - static_assert(Layout::Alignment() == 1, ""); - static_assert(Layout::Alignment() == 4, ""); - static_assert(Layout::Alignment() == 8, ""); - static_assert(Layout>::Alignment() == 64, ""); - static_assert(Layout::Alignment() == 8, ""); - static_assert(Layout::Alignment() == 8, ""); - static_assert(Layout::Alignment() == 8, ""); - static_assert(Layout::Alignment() == 8, ""); - static_assert(Layout::Alignment() == 8, ""); - static_assert(Layout::Alignment() == 8, ""); -} - -TEST(Layout, ConstexprPartial) { - constexpr size_t M = alignof(max_align_t); - constexpr Layout> x(1, 3); - static_assert(x.Partial(1).template Offset<1>() == 2 * M, ""); -} -// [from, to) -struct Region { - size_t from; - size_t to; -}; - -void ExpectRegionPoisoned(const unsigned char* p, size_t n, bool poisoned) { -#ifdef ABSL_HAVE_ADDRESS_SANITIZER - for (size_t i = 0; i != n; ++i) { - EXPECT_EQ(poisoned, __asan_address_is_poisoned(p + i)); - } -#endif -} - -template -void ExpectPoisoned(const unsigned char (&buf)[N], - std::initializer_list reg) { - size_t prev = 0; - for (const Region& r : reg) { - ExpectRegionPoisoned(buf + prev, r.from - prev, false); - ExpectRegionPoisoned(buf + r.from, r.to - r.from, true); - prev = r.to; - } - ExpectRegionPoisoned(buf + prev, N - prev, false); -} - -TEST(Layout, PoisonPadding) { - using L = Layout; - - constexpr size_t n = L::Partial(1, 2, 3, 4).AllocSize(); - { - constexpr auto x = L::Partial(); - alignas(max_align_t) const unsigned char c[n] = {}; - x.PoisonPadding(c); - EXPECT_EQ(x.Slices(c), x.Slices(c)); - ExpectPoisoned(c, {}); - } - { - constexpr auto x = L::Partial(1); - alignas(max_align_t) const unsigned char c[n] = {}; - x.PoisonPadding(c); - EXPECT_EQ(x.Slices(c), x.Slices(c)); - ExpectPoisoned(c, {{1, 8}}); - } - { - constexpr auto x = L::Partial(1, 2); - alignas(max_align_t) const unsigned char c[n] = {}; - x.PoisonPadding(c); - EXPECT_EQ(x.Slices(c), x.Slices(c)); - ExpectPoisoned(c, {{1, 8}}); - } - { - constexpr auto x = L::Partial(1, 2, 3); - alignas(max_align_t) const unsigned char c[n] = {}; - x.PoisonPadding(c); - EXPECT_EQ(x.Slices(c), x.Slices(c)); - ExpectPoisoned(c, {{1, 8}, {36, 40}}); - } - { - constexpr auto x = L::Partial(1, 2, 3, 4); - alignas(max_align_t) const unsigned char c[n] = {}; - x.PoisonPadding(c); - EXPECT_EQ(x.Slices(c), x.Slices(c)); - ExpectPoisoned(c, {{1, 8}, {36, 40}}); - } - { - constexpr L x(1, 2, 3, 4); - alignas(max_align_t) const unsigned char c[n] = {}; - x.PoisonPadding(c); - EXPECT_EQ(x.Slices(c), x.Slices(c)); - ExpectPoisoned(c, {{1, 8}, {36, 40}}); - } -} - -TEST(Layout, DebugString) { - { - constexpr auto x = Layout::Partial(); - EXPECT_EQ("@0(1)", x.DebugString()); - } - { - constexpr auto x = Layout::Partial(1); - EXPECT_EQ("@0(1)[1]; @4(4)", x.DebugString()); - } - { - constexpr auto x = Layout::Partial(1, 2); - EXPECT_EQ("@0(1)[1]; @4(4)[2]; @12(1)", - x.DebugString()); - } - { - constexpr auto x = - Layout::Partial(1, 2, 3); - EXPECT_EQ( - "@0(1)[1]; @4(4)[2]; @12(1)[3]; " - "@16" + - Int128::Name() + "(16)", - x.DebugString()); - } - { - constexpr auto x = - Layout::Partial(1, 2, 3, 4); - EXPECT_EQ( - "@0(1)[1]; @4(4)[2]; @12(1)[3]; " - "@16" + - Int128::Name() + "(16)[4]", - x.DebugString()); - } - { - constexpr Layout x(1, 2, 3, 4); - EXPECT_EQ( - "@0(1)[1]; @4(4)[2]; @12(1)[3]; " - "@16" + - Int128::Name() + "(16)[4]", - x.DebugString()); - } -} - -TEST(Layout, CharTypes) { - constexpr Layout x(1); - alignas(max_align_t) char c[x.AllocSize()] = {}; - alignas(max_align_t) unsigned char uc[x.AllocSize()] = {}; - alignas(max_align_t) signed char sc[x.AllocSize()] = {}; - alignas(max_align_t) const char cc[x.AllocSize()] = {}; - alignas(max_align_t) const unsigned char cuc[x.AllocSize()] = {}; - alignas(max_align_t) const signed char csc[x.AllocSize()] = {}; - - Type(x.Pointer<0>(c)); - Type(x.Pointer<0>(uc)); - Type(x.Pointer<0>(sc)); - Type(x.Pointer<0>(cc)); - Type(x.Pointer<0>(cuc)); - Type(x.Pointer<0>(csc)); - - Type(x.Pointer(c)); - Type(x.Pointer(uc)); - Type(x.Pointer(sc)); - Type(x.Pointer(cc)); - Type(x.Pointer(cuc)); - Type(x.Pointer(csc)); - - Type>(x.Pointers(c)); - Type>(x.Pointers(uc)); - Type>(x.Pointers(sc)); - Type>(x.Pointers(cc)); - Type>(x.Pointers(cuc)); - Type>(x.Pointers(csc)); - - Type>(x.Slice<0>(c)); - Type>(x.Slice<0>(uc)); - Type>(x.Slice<0>(sc)); - Type>(x.Slice<0>(cc)); - Type>(x.Slice<0>(cuc)); - Type>(x.Slice<0>(csc)); - - Type>>(x.Slices(c)); - Type>>(x.Slices(uc)); - Type>>(x.Slices(sc)); - Type>>(x.Slices(cc)); - Type>>(x.Slices(cuc)); - Type>>(x.Slices(csc)); -} - -TEST(Layout, ConstElementType) { - constexpr Layout x(1); - alignas(int32_t) char c[x.AllocSize()] = {}; - const char* cc = c; - const int32_t* p = reinterpret_cast(cc); - - EXPECT_EQ(alignof(int32_t), x.Alignment()); - - EXPECT_EQ(0, x.Offset<0>()); - EXPECT_EQ(0, x.Offset()); - - EXPECT_THAT(x.Offsets(), ElementsAre(0)); - - EXPECT_EQ(1, x.Size<0>()); - EXPECT_EQ(1, x.Size()); - - EXPECT_THAT(x.Sizes(), ElementsAre(1)); - - EXPECT_EQ(sizeof(int32_t), x.AllocSize()); - - EXPECT_EQ(p, Type(x.Pointer<0>(c))); - EXPECT_EQ(p, Type(x.Pointer<0>(cc))); - - EXPECT_EQ(p, Type(x.Pointer(c))); - EXPECT_EQ(p, Type(x.Pointer(cc))); - - EXPECT_THAT(Type>(x.Pointers(c)), Tuple(p)); - EXPECT_THAT(Type>(x.Pointers(cc)), Tuple(p)); - - EXPECT_THAT(Type>(x.Slice<0>(c)), - IsSameSlice(Span(p, 1))); - EXPECT_THAT(Type>(x.Slice<0>(cc)), - IsSameSlice(Span(p, 1))); - - EXPECT_THAT(Type>(x.Slice(c)), - IsSameSlice(Span(p, 1))); - EXPECT_THAT(Type>(x.Slice(cc)), - IsSameSlice(Span(p, 1))); - - EXPECT_THAT(Type>>(x.Slices(c)), - Tuple(IsSameSlice(Span(p, 1)))); - EXPECT_THAT(Type>>(x.Slices(cc)), - Tuple(IsSameSlice(Span(p, 1)))); -} - -namespace example { - -// Immutable move-only string with sizeof equal to sizeof(void*). The string -// size and the characters are kept in the same heap allocation. -class CompactString { - public: - CompactString(const char* s = "") { // NOLINT - const size_t size = strlen(s); - // size_t[1], followed by char[size + 1]. - // This statement doesn't allocate memory. - const L layout(1, size + 1); - // AllocSize() tells us how much memory we need to allocate for all our - // data. - p_.reset(new unsigned char[layout.AllocSize()]); - // If running under ASAN, mark the padding bytes, if any, to catch memory - // errors. - layout.PoisonPadding(p_.get()); - // Store the size in the allocation. - // Pointer() is a synonym for Pointer<0>(). - *layout.Pointer(p_.get()) = size; - // Store the characters in the allocation. - memcpy(layout.Pointer(p_.get()), s, size + 1); - } - - size_t size() const { - // Equivalent to reinterpret_cast(*p). - return *L::Partial().Pointer(p_.get()); - } - - const char* c_str() const { - // Equivalent to reinterpret_cast(p.get() + sizeof(size_t)). - // The argument in Partial(1) specifies that we have size_t[1] in front of - // the characters. - return L::Partial(1).Pointer(p_.get()); - } - - private: - // Our heap allocation contains a size_t followed by an array of chars. - using L = Layout; - std::unique_ptr p_; -}; - -TEST(CompactString, Works) { - CompactString s = "hello"; - EXPECT_EQ(5, s.size()); - EXPECT_STREQ("hello", s.c_str()); -} - -} // namespace example - -} // namespace -} // namespace container_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/src/third_party/abseil-cpp/absl/container/internal/node_slot_policy.h b/src/third_party/abseil-cpp/absl/container/internal/node_slot_policy.h deleted file mode 100644 index baba5743c8..0000000000 --- a/src/third_party/abseil-cpp/absl/container/internal/node_slot_policy.h +++ /dev/null @@ -1,92 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// Adapts a policy for nodes. -// -// The node policy should model: -// -// struct Policy { -// // Returns a new node allocated and constructed using the allocator, using -// // the specified arguments. -// template -// value_type* new_element(Alloc* alloc, Args&&... args) const; -// -// // Destroys and deallocates node using the allocator. -// template -// void delete_element(Alloc* alloc, value_type* node) const; -// }; -// -// It may also optionally define `value()` and `apply()`. For documentation on -// these, see hash_policy_traits.h. - -#ifndef ABSL_CONTAINER_INTERNAL_NODE_SLOT_POLICY_H_ -#define ABSL_CONTAINER_INTERNAL_NODE_SLOT_POLICY_H_ - -#include -#include -#include -#include -#include - -#include "absl/base/config.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace container_internal { - -template -struct node_slot_policy { - static_assert(std::is_lvalue_reference::value, ""); - - using slot_type = typename std::remove_cv< - typename std::remove_reference::type>::type*; - - template - static void construct(Alloc* alloc, slot_type* slot, Args&&... args) { - *slot = Policy::new_element(alloc, std::forward(args)...); - } - - template - static void destroy(Alloc* alloc, slot_type* slot) { - Policy::delete_element(alloc, *slot); - } - - template - static void transfer(Alloc*, slot_type* new_slot, slot_type* old_slot) { - *new_slot = *old_slot; - } - - static size_t space_used(const slot_type* slot) { - if (slot == nullptr) return Policy::element_space_used(nullptr); - return Policy::element_space_used(*slot); - } - - static Reference element(slot_type* slot) { return **slot; } - - template - static auto value(T* elem) -> decltype(P::value(elem)) { - return P::value(elem); - } - - template - static auto apply(Ts&&... ts) -> decltype(P::apply(std::forward(ts)...)) { - return P::apply(std::forward(ts)...); - } -}; - -} // namespace container_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_CONTAINER_INTERNAL_NODE_SLOT_POLICY_H_ diff --git a/src/third_party/abseil-cpp/absl/container/internal/node_slot_policy_test.cc b/src/third_party/abseil-cpp/absl/container/internal/node_slot_policy_test.cc deleted file mode 100644 index 51b7467bfb..0000000000 --- a/src/third_party/abseil-cpp/absl/container/internal/node_slot_policy_test.cc +++ /dev/null @@ -1,69 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/container/internal/node_slot_policy.h" - -#include - -#include "gmock/gmock.h" -#include "gtest/gtest.h" -#include "absl/container/internal/hash_policy_traits.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace container_internal { -namespace { - -using ::testing::Pointee; - -struct Policy : node_slot_policy { - using key_type = int; - using init_type = int; - - template - static int* new_element(Alloc* alloc, int value) { - return new int(value); - } - - template - static void delete_element(Alloc* alloc, int* elem) { - delete elem; - } -}; - -using NodePolicy = hash_policy_traits; - -struct NodeTest : ::testing::Test { - std::allocator alloc; - int n = 53; - int* a = &n; -}; - -TEST_F(NodeTest, ConstructDestroy) { - NodePolicy::construct(&alloc, &a, 42); - EXPECT_THAT(a, Pointee(42)); - NodePolicy::destroy(&alloc, &a); -} - -TEST_F(NodeTest, transfer) { - int s = 42; - int* b = &s; - NodePolicy::transfer(&alloc, &a, &b); - EXPECT_EQ(&s, a); -} - -} // namespace -} // namespace container_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/src/third_party/abseil-cpp/absl/container/internal/raw_hash_map.h b/src/third_party/abseil-cpp/absl/container/internal/raw_hash_map.h deleted file mode 100644 index c7df2efc62..0000000000 --- a/src/third_party/abseil-cpp/absl/container/internal/raw_hash_map.h +++ /dev/null @@ -1,198 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#ifndef ABSL_CONTAINER_INTERNAL_RAW_HASH_MAP_H_ -#define ABSL_CONTAINER_INTERNAL_RAW_HASH_MAP_H_ - -#include -#include -#include - -#include "absl/base/internal/throw_delegate.h" -#include "absl/container/internal/container_memory.h" -#include "absl/container/internal/raw_hash_set.h" // IWYU pragma: export - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace container_internal { - -template -class raw_hash_map : public raw_hash_set { - // P is Policy. It's passed as a template argument to support maps that have - // incomplete types as values, as in unordered_map. - // MappedReference<> may be a non-reference type. - template - using MappedReference = decltype(P::value( - std::addressof(std::declval()))); - - // MappedConstReference<> may be a non-reference type. - template - using MappedConstReference = decltype(P::value( - std::addressof(std::declval()))); - - using KeyArgImpl = - KeyArg::value && IsTransparent::value>; - - public: - using key_type = typename Policy::key_type; - using mapped_type = typename Policy::mapped_type; - template - using key_arg = typename KeyArgImpl::template type; - - static_assert(!std::is_reference::value, ""); - - // TODO(b/187807849): Evaluate whether to support reference mapped_type and - // remove this assertion if/when it is supported. - static_assert(!std::is_reference::value, ""); - - using iterator = typename raw_hash_map::raw_hash_set::iterator; - using const_iterator = typename raw_hash_map::raw_hash_set::const_iterator; - - raw_hash_map() {} - using raw_hash_map::raw_hash_set::raw_hash_set; - - // The last two template parameters ensure that both arguments are rvalues - // (lvalue arguments are handled by the overloads below). This is necessary - // for supporting bitfield arguments. - // - // union { int n : 1; }; - // flat_hash_map m; - // m.insert_or_assign(n, n); - template - std::pair insert_or_assign(key_arg&& k, V&& v) { - return insert_or_assign_impl(std::forward(k), std::forward(v)); - } - - template - std::pair insert_or_assign(key_arg&& k, const V& v) { - return insert_or_assign_impl(std::forward(k), v); - } - - template - std::pair insert_or_assign(const key_arg& k, V&& v) { - return insert_or_assign_impl(k, std::forward(v)); - } - - template - std::pair insert_or_assign(const key_arg& k, const V& v) { - return insert_or_assign_impl(k, v); - } - - template - iterator insert_or_assign(const_iterator, key_arg&& k, V&& v) { - return insert_or_assign(std::forward(k), std::forward(v)).first; - } - - template - iterator insert_or_assign(const_iterator, key_arg&& k, const V& v) { - return insert_or_assign(std::forward(k), v).first; - } - - template - iterator insert_or_assign(const_iterator, const key_arg& k, V&& v) { - return insert_or_assign(k, std::forward(v)).first; - } - - template - iterator insert_or_assign(const_iterator, const key_arg& k, const V& v) { - return insert_or_assign(k, v).first; - } - - // All `try_emplace()` overloads make the same guarantees regarding rvalue - // arguments as `std::unordered_map::try_emplace()`, namely that these - // functions will not move from rvalue arguments if insertions do not happen. - template ::value, int>::type = 0, - K* = nullptr> - std::pair try_emplace(key_arg&& k, Args&&... args) { - return try_emplace_impl(std::forward(k), std::forward(args)...); - } - - template ::value, int>::type = 0> - std::pair try_emplace(const key_arg& k, Args&&... args) { - return try_emplace_impl(k, std::forward(args)...); - } - - template - iterator try_emplace(const_iterator, key_arg&& k, Args&&... args) { - return try_emplace(std::forward(k), std::forward(args)...).first; - } - - template - iterator try_emplace(const_iterator, const key_arg& k, Args&&... args) { - return try_emplace(k, std::forward(args)...).first; - } - - template - MappedReference

at(const key_arg& key) { - auto it = this->find(key); - if (it == this->end()) { - base_internal::ThrowStdOutOfRange( - "absl::container_internal::raw_hash_map<>::at"); - } - return Policy::value(&*it); - } - - template - MappedConstReference

at(const key_arg& key) const { - auto it = this->find(key); - if (it == this->end()) { - base_internal::ThrowStdOutOfRange( - "absl::container_internal::raw_hash_map<>::at"); - } - return Policy::value(&*it); - } - - template - MappedReference

operator[](key_arg&& key) { - return Policy::value(&*try_emplace(std::forward(key)).first); - } - - template - MappedReference

operator[](const key_arg& key) { - return Policy::value(&*try_emplace(key).first); - } - - private: - template - std::pair insert_or_assign_impl(K&& k, V&& v) { - auto res = this->find_or_prepare_insert(k); - if (res.second) - this->emplace_at(res.first, std::forward(k), std::forward(v)); - else - Policy::value(&*this->iterator_at(res.first)) = std::forward(v); - return {this->iterator_at(res.first), res.second}; - } - - template - std::pair try_emplace_impl(K&& k, Args&&... args) { - auto res = this->find_or_prepare_insert(k); - if (res.second) - this->emplace_at(res.first, std::piecewise_construct, - std::forward_as_tuple(std::forward(k)), - std::forward_as_tuple(std::forward(args)...)); - return {this->iterator_at(res.first), res.second}; - } -}; - -} // namespace container_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_CONTAINER_INTERNAL_RAW_HASH_MAP_H_ diff --git a/src/third_party/abseil-cpp/absl/container/internal/raw_hash_set.cc b/src/third_party/abseil-cpp/absl/container/internal/raw_hash_set.cc deleted file mode 100644 index 3677ac595e..0000000000 --- a/src/third_party/abseil-cpp/absl/container/internal/raw_hash_set.cc +++ /dev/null @@ -1,222 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/container/internal/raw_hash_set.h" - -#include -#include -#include - -#include "absl/base/config.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace container_internal { - -// A single block of empty control bytes for tables without any slots allocated. -// This enables removing a branch in the hot path of find(). -// We have 17 bytes because there may be a generation counter. Any constant is -// fine for the generation counter. -alignas(16) ABSL_CONST_INIT ABSL_DLL const ctrl_t kEmptyGroup[17] = { - ctrl_t::kSentinel, ctrl_t::kEmpty, ctrl_t::kEmpty, ctrl_t::kEmpty, - ctrl_t::kEmpty, ctrl_t::kEmpty, ctrl_t::kEmpty, ctrl_t::kEmpty, - ctrl_t::kEmpty, ctrl_t::kEmpty, ctrl_t::kEmpty, ctrl_t::kEmpty, - ctrl_t::kEmpty, ctrl_t::kEmpty, ctrl_t::kEmpty, ctrl_t::kEmpty, - static_cast(0)}; - -#ifdef ABSL_INTERNAL_NEED_REDUNDANT_CONSTEXPR_DECL -constexpr size_t Group::kWidth; -#endif - -// Returns "random" seed. -inline size_t RandomSeed() { -#ifdef ABSL_HAVE_THREAD_LOCAL - static thread_local size_t counter = 0; - size_t value = ++counter; -#else // ABSL_HAVE_THREAD_LOCAL - static std::atomic counter(0); - size_t value = counter.fetch_add(1, std::memory_order_relaxed); -#endif // ABSL_HAVE_THREAD_LOCAL - return value ^ static_cast(reinterpret_cast(&counter)); -} - -bool ShouldInsertBackwards(size_t hash, const ctrl_t* ctrl) { - // To avoid problems with weak hashes and single bit tests, we use % 13. - // TODO(kfm,sbenza): revisit after we do unconditional mixing - return (H1(hash, ctrl) ^ RandomSeed()) % 13 > 6; -} - -void ConvertDeletedToEmptyAndFullToDeleted(ctrl_t* ctrl, size_t capacity) { - assert(ctrl[capacity] == ctrl_t::kSentinel); - assert(IsValidCapacity(capacity)); - for (ctrl_t* pos = ctrl; pos < ctrl + capacity; pos += Group::kWidth) { - Group{pos}.ConvertSpecialToEmptyAndFullToDeleted(pos); - } - // Copy the cloned ctrl bytes. - std::memcpy(ctrl + capacity + 1, ctrl, NumClonedBytes()); - ctrl[capacity] = ctrl_t::kSentinel; -} -// Extern template instantiation for inline function. -template FindInfo find_first_non_full(const CommonFields&, size_t); - -FindInfo find_first_non_full_outofline(const CommonFields& common, - size_t hash) { - return find_first_non_full(common, hash); -} - -// Return address of the ith slot in slots where each slot occupies slot_size. -static inline void* SlotAddress(void* slot_array, size_t slot, - size_t slot_size) { - return reinterpret_cast(reinterpret_cast(slot_array) + - (slot * slot_size)); -} - -// Return the address of the slot just after slot assuming each slot -// has the specified size. -static inline void* NextSlot(void* slot, size_t slot_size) { - return reinterpret_cast(reinterpret_cast(slot) + slot_size); -} - -// Return the address of the slot just before slot assuming each slot -// has the specified size. -static inline void* PrevSlot(void* slot, size_t slot_size) { - return reinterpret_cast(reinterpret_cast(slot) - slot_size); -} - -void DropDeletesWithoutResize(CommonFields& common, - const PolicyFunctions& policy, void* tmp_space) { - void* set = &common; - void* slot_array = common.slots_; - const size_t capacity = common.capacity_; - assert(IsValidCapacity(capacity)); - assert(!is_small(capacity)); - // Algorithm: - // - mark all DELETED slots as EMPTY - // - mark all FULL slots as DELETED - // - for each slot marked as DELETED - // hash = Hash(element) - // target = find_first_non_full(hash) - // if target is in the same group - // mark slot as FULL - // else if target is EMPTY - // transfer element to target - // mark slot as EMPTY - // mark target as FULL - // else if target is DELETED - // swap current element with target element - // mark target as FULL - // repeat procedure for current slot with moved from element (target) - ctrl_t* ctrl = common.control_; - ConvertDeletedToEmptyAndFullToDeleted(ctrl, capacity); - auto hasher = policy.hash_slot; - auto transfer = policy.transfer; - const size_t slot_size = policy.slot_size; - - size_t total_probe_length = 0; - void* slot_ptr = SlotAddress(slot_array, 0, slot_size); - for (size_t i = 0; i != capacity; - ++i, slot_ptr = NextSlot(slot_ptr, slot_size)) { - assert(slot_ptr == SlotAddress(slot_array, i, slot_size)); - if (!IsDeleted(ctrl[i])) continue; - const size_t hash = (*hasher)(set, slot_ptr); - const FindInfo target = find_first_non_full(common, hash); - const size_t new_i = target.offset; - total_probe_length += target.probe_length; - - // Verify if the old and new i fall within the same group wrt the hash. - // If they do, we don't need to move the object as it falls already in the - // best probe we can. - const size_t probe_offset = probe(common, hash).offset(); - const auto probe_index = [probe_offset, capacity](size_t pos) { - return ((pos - probe_offset) & capacity) / Group::kWidth; - }; - - // Element doesn't move. - if (ABSL_PREDICT_TRUE(probe_index(new_i) == probe_index(i))) { - SetCtrl(common, i, H2(hash), slot_size); - continue; - } - - void* new_slot_ptr = SlotAddress(slot_array, new_i, slot_size); - if (IsEmpty(ctrl[new_i])) { - // Transfer element to the empty spot. - // SetCtrl poisons/unpoisons the slots so we have to call it at the - // right time. - SetCtrl(common, new_i, H2(hash), slot_size); - (*transfer)(set, new_slot_ptr, slot_ptr); - SetCtrl(common, i, ctrl_t::kEmpty, slot_size); - } else { - assert(IsDeleted(ctrl[new_i])); - SetCtrl(common, new_i, H2(hash), slot_size); - // Until we are done rehashing, DELETED marks previously FULL slots. - - // Swap i and new_i elements. - (*transfer)(set, tmp_space, new_slot_ptr); - (*transfer)(set, new_slot_ptr, slot_ptr); - (*transfer)(set, slot_ptr, tmp_space); - - // repeat the processing of the ith slot - --i; - slot_ptr = PrevSlot(slot_ptr, slot_size); - } - } - ResetGrowthLeft(common); - common.infoz().RecordRehash(total_probe_length); -} - -void EraseMetaOnly(CommonFields& c, ctrl_t* it, size_t slot_size) { - assert(IsFull(*it) && "erasing a dangling iterator"); - --c.size_; - const auto index = static_cast(it - c.control_); - const size_t index_before = (index - Group::kWidth) & c.capacity_; - const auto empty_after = Group(it).MaskEmpty(); - const auto empty_before = Group(c.control_ + index_before).MaskEmpty(); - - // We count how many consecutive non empties we have to the right and to the - // left of `it`. If the sum is >= kWidth then there is at least one probe - // window that might have seen a full group. - bool was_never_full = empty_before && empty_after && - static_cast(empty_after.TrailingZeros()) + - empty_before.LeadingZeros() < - Group::kWidth; - - SetCtrl(c, index, was_never_full ? ctrl_t::kEmpty : ctrl_t::kDeleted, - slot_size); - c.growth_left() += (was_never_full ? 1 : 0); - c.infoz().RecordErase(); -} - -void ClearBackingArray(CommonFields& c, const PolicyFunctions& policy, - bool reuse) { - c.size_ = 0; - if (reuse) { - ResetCtrl(c, policy.slot_size); - c.infoz().RecordStorageChanged(0, c.capacity_); - } else { - void* set = &c; - (*policy.dealloc)(set, policy, c.control_, c.slots_, c.capacity_); - c.control_ = EmptyGroup(); - c.set_generation_ptr(EmptyGeneration()); - c.slots_ = nullptr; - c.capacity_ = 0; - c.growth_left() = 0; - c.infoz().RecordClearedReservation(); - assert(c.size_ == 0); - c.infoz().RecordStorageChanged(0, 0); - } -} - -} // namespace container_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/src/third_party/abseil-cpp/absl/container/internal/raw_hash_set.h b/src/third_party/abseil-cpp/absl/container/internal/raw_hash_set.h deleted file mode 100644 index 61ef196d47..0000000000 --- a/src/third_party/abseil-cpp/absl/container/internal/raw_hash_set.h +++ /dev/null @@ -1,2685 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// An open-addressing -// hashtable with quadratic probing. -// -// This is a low level hashtable on top of which different interfaces can be -// implemented, like flat_hash_set, node_hash_set, string_hash_set, etc. -// -// The table interface is similar to that of std::unordered_set. Notable -// differences are that most member functions support heterogeneous keys when -// BOTH the hash and eq functions are marked as transparent. They do so by -// providing a typedef called `is_transparent`. -// -// When heterogeneous lookup is enabled, functions that take key_type act as if -// they have an overload set like: -// -// iterator find(const key_type& key); -// template -// iterator find(const K& key); -// -// size_type erase(const key_type& key); -// template -// size_type erase(const K& key); -// -// std::pair equal_range(const key_type& key); -// template -// std::pair equal_range(const K& key); -// -// When heterogeneous lookup is disabled, only the explicit `key_type` overloads -// exist. -// -// find() also supports passing the hash explicitly: -// -// iterator find(const key_type& key, size_t hash); -// template -// iterator find(const U& key, size_t hash); -// -// In addition the pointer to element and iterator stability guarantees are -// weaker: all iterators and pointers are invalidated after a new element is -// inserted. -// -// IMPLEMENTATION DETAILS -// -// # Table Layout -// -// A raw_hash_set's backing array consists of control bytes followed by slots -// that may or may not contain objects. -// -// The layout of the backing array, for `capacity` slots, is thus, as a -// pseudo-struct: -// -// struct BackingArray { -// // Control bytes for the "real" slots. -// ctrl_t ctrl[capacity]; -// // Always `ctrl_t::kSentinel`. This is used by iterators to find when to -// // stop and serves no other purpose. -// ctrl_t sentinel; -// // A copy of the first `kWidth - 1` elements of `ctrl`. This is used so -// // that if a probe sequence picks a value near the end of `ctrl`, -// // `Group` will have valid control bytes to look at. -// ctrl_t clones[kWidth - 1]; -// // The actual slot data. -// slot_type slots[capacity]; -// }; -// -// The length of this array is computed by `AllocSize()` below. -// -// Control bytes (`ctrl_t`) are bytes (collected into groups of a -// platform-specific size) that define the state of the corresponding slot in -// the slot array. Group manipulation is tightly optimized to be as efficient -// as possible: SSE and friends on x86, clever bit operations on other arches. -// -// Group 1 Group 2 Group 3 -// +---------------+---------------+---------------+ -// | | | | | | | | | | | | | | | | | | | | | | | | | -// +---------------+---------------+---------------+ -// -// Each control byte is either a special value for empty slots, deleted slots -// (sometimes called *tombstones*), and a special end-of-table marker used by -// iterators, or, if occupied, seven bits (H2) from the hash of the value in the -// corresponding slot. -// -// Storing control bytes in a separate array also has beneficial cache effects, -// since more logical slots will fit into a cache line. -// -// # Hashing -// -// We compute two separate hashes, `H1` and `H2`, from the hash of an object. -// `H1(hash(x))` is an index into `slots`, and essentially the starting point -// for the probe sequence. `H2(hash(x))` is a 7-bit value used to filter out -// objects that cannot possibly be the one we are looking for. -// -// # Table operations. -// -// The key operations are `insert`, `find`, and `erase`. -// -// Since `insert` and `erase` are implemented in terms of `find`, we describe -// `find` first. To `find` a value `x`, we compute `hash(x)`. From -// `H1(hash(x))` and the capacity, we construct a `probe_seq` that visits every -// group of slots in some interesting order. -// -// We now walk through these indices. At each index, we select the entire group -// starting with that index and extract potential candidates: occupied slots -// with a control byte equal to `H2(hash(x))`. If we find an empty slot in the -// group, we stop and return an error. Each candidate slot `y` is compared with -// `x`; if `x == y`, we are done and return `&y`; otherwise we contine to the -// next probe index. Tombstones effectively behave like full slots that never -// match the value we're looking for. -// -// The `H2` bits ensure when we compare a slot to an object with `==`, we are -// likely to have actually found the object. That is, the chance is low that -// `==` is called and returns `false`. Thus, when we search for an object, we -// are unlikely to call `==` many times. This likelyhood can be analyzed as -// follows (assuming that H2 is a random enough hash function). -// -// Let's assume that there are `k` "wrong" objects that must be examined in a -// probe sequence. For example, when doing a `find` on an object that is in the -// table, `k` is the number of objects between the start of the probe sequence -// and the final found object (not including the final found object). The -// expected number of objects with an H2 match is then `k/128`. Measurements -// and analysis indicate that even at high load factors, `k` is less than 32, -// meaning that the number of "false positive" comparisons we must perform is -// less than 1/8 per `find`. - -// `insert` is implemented in terms of `unchecked_insert`, which inserts a -// value presumed to not be in the table (violating this requirement will cause -// the table to behave erratically). Given `x` and its hash `hash(x)`, to insert -// it, we construct a `probe_seq` once again, and use it to find the first -// group with an unoccupied (empty *or* deleted) slot. We place `x` into the -// first such slot in the group and mark it as full with `x`'s H2. -// -// To `insert`, we compose `unchecked_insert` with `find`. We compute `h(x)` and -// perform a `find` to see if it's already present; if it is, we're done. If -// it's not, we may decide the table is getting overcrowded (i.e. the load -// factor is greater than 7/8 for big tables; `is_small()` tables use a max load -// factor of 1); in this case, we allocate a bigger array, `unchecked_insert` -// each element of the table into the new array (we know that no insertion here -// will insert an already-present value), and discard the old backing array. At -// this point, we may `unchecked_insert` the value `x`. -// -// Below, `unchecked_insert` is partly implemented by `prepare_insert`, which -// presents a viable, initialized slot pointee to the caller. -// -// `erase` is implemented in terms of `erase_at`, which takes an index to a -// slot. Given an offset, we simply create a tombstone and destroy its contents. -// If we can prove that the slot would not appear in a probe sequence, we can -// make the slot as empty, instead. We can prove this by observing that if a -// group has any empty slots, it has never been full (assuming we never create -// an empty slot in a group with no empties, which this heuristic guarantees we -// never do) and find would stop at this group anyways (since it does not probe -// beyond groups with empties). -// -// `erase` is `erase_at` composed with `find`: if we -// have a value `x`, we can perform a `find`, and then `erase_at` the resulting -// slot. -// -// To iterate, we simply traverse the array, skipping empty and deleted slots -// and stopping when we hit a `kSentinel`. - -#ifndef ABSL_CONTAINER_INTERNAL_RAW_HASH_SET_H_ -#define ABSL_CONTAINER_INTERNAL_RAW_HASH_SET_H_ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "absl/base/config.h" -#include "absl/base/internal/endian.h" -#include "absl/base/internal/prefetch.h" -#include "absl/base/internal/raw_logging.h" -#include "absl/base/optimization.h" -#include "absl/base/port.h" -#include "absl/container/internal/common.h" -#include "absl/container/internal/compressed_tuple.h" -#include "absl/container/internal/container_memory.h" -#include "absl/container/internal/hash_policy_traits.h" -#include "absl/container/internal/hashtable_debug_hooks.h" -#include "absl/container/internal/hashtablez_sampler.h" -#include "absl/memory/memory.h" -#include "absl/meta/type_traits.h" -#include "absl/numeric/bits.h" -#include "absl/utility/utility.h" - -#ifdef ABSL_INTERNAL_HAVE_SSE2 -#include -#endif - -#ifdef ABSL_INTERNAL_HAVE_SSSE3 -#include -#endif - -#ifdef _MSC_VER -#include -#endif - -#ifdef ABSL_INTERNAL_HAVE_ARM_NEON -#include -#endif - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace container_internal { - -#ifdef ABSL_SWISSTABLE_ENABLE_GENERATIONS -#error ABSL_SWISSTABLE_ENABLE_GENERATIONS cannot be directly set -#elif defined(ABSL_HAVE_ADDRESS_SANITIZER) || \ - defined(ABSL_HAVE_MEMORY_SANITIZER) -// When compiled in sanitizer mode, we add generation integers to the backing -// array and iterators. In the backing array, we store the generation between -// the control bytes and the slots. When iterators are dereferenced, we assert -// that the container has not been mutated in a way that could cause iterator -// invalidation since the iterator was initialized. -#define ABSL_SWISSTABLE_ENABLE_GENERATIONS -#endif - -// We use uint8_t so we don't need to worry about padding. -using GenerationType = uint8_t; - -#ifdef ABSL_SWISSTABLE_ENABLE_GENERATIONS -constexpr bool SwisstableGenerationsEnabled() { return true; } -constexpr size_t NumGenerationBytes() { return sizeof(GenerationType); } -#else -constexpr bool SwisstableGenerationsEnabled() { return false; } -constexpr size_t NumGenerationBytes() { return 0; } -#endif - -template -void SwapAlloc(AllocType& lhs, AllocType& rhs, - std::true_type /* propagate_on_container_swap */) { - using std::swap; - swap(lhs, rhs); -} -template -void SwapAlloc(AllocType& /*lhs*/, AllocType& /*rhs*/, - std::false_type /* propagate_on_container_swap */) {} - -// The state for a probe sequence. -// -// Currently, the sequence is a triangular progression of the form -// -// p(i) := Width * (i^2 + i)/2 + hash (mod mask + 1) -// -// The use of `Width` ensures that each probe step does not overlap groups; -// the sequence effectively outputs the addresses of *groups* (although not -// necessarily aligned to any boundary). The `Group` machinery allows us -// to check an entire group with minimal branching. -// -// Wrapping around at `mask + 1` is important, but not for the obvious reason. -// As described above, the first few entries of the control byte array -// are mirrored at the end of the array, which `Group` will find and use -// for selecting candidates. However, when those candidates' slots are -// actually inspected, there are no corresponding slots for the cloned bytes, -// so we need to make sure we've treated those offsets as "wrapping around". -// -// It turns out that this probe sequence visits every group exactly once if the -// number of groups is a power of two, since (i^2+i)/2 is a bijection in -// Z/(2^m). See https://en.wikipedia.org/wiki/Quadratic_probing -template -class probe_seq { - public: - // Creates a new probe sequence using `hash` as the initial value of the - // sequence and `mask` (usually the capacity of the table) as the mask to - // apply to each value in the progression. - probe_seq(size_t hash, size_t mask) { - assert(((mask + 1) & mask) == 0 && "not a mask"); - mask_ = mask; - offset_ = hash & mask_; - } - - // The offset within the table, i.e., the value `p(i)` above. - size_t offset() const { return offset_; } - size_t offset(size_t i) const { return (offset_ + i) & mask_; } - - void next() { - index_ += Width; - offset_ += index_; - offset_ &= mask_; - } - // 0-based probe index, a multiple of `Width`. - size_t index() const { return index_; } - - private: - size_t mask_; - size_t offset_; - size_t index_ = 0; -}; - -template -struct RequireUsableKey { - template - std::pair< - decltype(std::declval()(std::declval())), - decltype(std::declval()(std::declval(), - std::declval()))>* - operator()(const PassedKey&, const Args&...) const; -}; - -template -struct IsDecomposable : std::false_type {}; - -template -struct IsDecomposable< - absl::void_t(), - std::declval()...))>, - Policy, Hash, Eq, Ts...> : std::true_type {}; - -// TODO(alkis): Switch to std::is_nothrow_swappable when gcc/clang supports it. -template -constexpr bool IsNoThrowSwappable(std::true_type = {} /* is_swappable */) { - using std::swap; - return noexcept(swap(std::declval(), std::declval())); -} -template -constexpr bool IsNoThrowSwappable(std::false_type /* is_swappable */) { - return false; -} - -template -uint32_t TrailingZeros(T x) { - ABSL_ASSUME(x != 0); - return static_cast(countr_zero(x)); -} - -// An abstract bitmask, such as that emitted by a SIMD instruction. -// -// Specifically, this type implements a simple bitset whose representation is -// controlled by `SignificantBits` and `Shift`. `SignificantBits` is the number -// of abstract bits in the bitset, while `Shift` is the log-base-two of the -// width of an abstract bit in the representation. -// This mask provides operations for any number of real bits set in an abstract -// bit. To add iteration on top of that, implementation must guarantee no more -// than one real bit is set in an abstract bit. -template -class NonIterableBitMask { - public: - explicit NonIterableBitMask(T mask) : mask_(mask) {} - - explicit operator bool() const { return this->mask_ != 0; } - - // Returns the index of the lowest *abstract* bit set in `self`. - uint32_t LowestBitSet() const { - return container_internal::TrailingZeros(mask_) >> Shift; - } - - // Returns the index of the highest *abstract* bit set in `self`. - uint32_t HighestBitSet() const { - return static_cast((bit_width(mask_) - 1) >> Shift); - } - - // Return the number of trailing zero *abstract* bits. - uint32_t TrailingZeros() const { - return container_internal::TrailingZeros(mask_) >> Shift; - } - - // Return the number of leading zero *abstract* bits. - uint32_t LeadingZeros() const { - constexpr int total_significant_bits = SignificantBits << Shift; - constexpr int extra_bits = sizeof(T) * 8 - total_significant_bits; - return static_cast(countl_zero(mask_ << extra_bits)) >> Shift; - } - - T mask_; -}; - -// Mask that can be iterable -// -// For example, when `SignificantBits` is 16 and `Shift` is zero, this is just -// an ordinary 16-bit bitset occupying the low 16 bits of `mask`. When -// `SignificantBits` is 8 and `Shift` is 3, abstract bits are represented as -// the bytes `0x00` and `0x80`, and it occupies all 64 bits of the bitmask. -// -// For example: -// for (int i : BitMask(0b101)) -> yields 0, 2 -// for (int i : BitMask(0x0000000080800000)) -> yields 2, 3 -template -class BitMask : public NonIterableBitMask { - using Base = NonIterableBitMask; - static_assert(std::is_unsigned::value, ""); - static_assert(Shift == 0 || Shift == 3, ""); - - public: - explicit BitMask(T mask) : Base(mask) {} - // BitMask is an iterator over the indices of its abstract bits. - using value_type = int; - using iterator = BitMask; - using const_iterator = BitMask; - - BitMask& operator++() { - this->mask_ &= (this->mask_ - 1); - return *this; - } - - uint32_t operator*() const { return Base::LowestBitSet(); } - - BitMask begin() const { return *this; } - BitMask end() const { return BitMask(0); } - - private: - friend bool operator==(const BitMask& a, const BitMask& b) { - return a.mask_ == b.mask_; - } - friend bool operator!=(const BitMask& a, const BitMask& b) { - return a.mask_ != b.mask_; - } -}; - -using h2_t = uint8_t; - -// The values here are selected for maximum performance. See the static asserts -// below for details. - -// A `ctrl_t` is a single control byte, which can have one of four -// states: empty, deleted, full (which has an associated seven-bit h2_t value) -// and the sentinel. They have the following bit patterns: -// -// empty: 1 0 0 0 0 0 0 0 -// deleted: 1 1 1 1 1 1 1 0 -// full: 0 h h h h h h h // h represents the hash bits. -// sentinel: 1 1 1 1 1 1 1 1 -// -// These values are specifically tuned for SSE-flavored SIMD. -// The static_asserts below detail the source of these choices. -// -// We use an enum class so that when strict aliasing is enabled, the compiler -// knows ctrl_t doesn't alias other types. -enum class ctrl_t : int8_t { - kEmpty = -128, // 0b10000000 - kDeleted = -2, // 0b11111110 - kSentinel = -1, // 0b11111111 -}; -static_assert( - (static_cast(ctrl_t::kEmpty) & - static_cast(ctrl_t::kDeleted) & - static_cast(ctrl_t::kSentinel) & 0x80) != 0, - "Special markers need to have the MSB to make checking for them efficient"); -static_assert( - ctrl_t::kEmpty < ctrl_t::kSentinel && ctrl_t::kDeleted < ctrl_t::kSentinel, - "ctrl_t::kEmpty and ctrl_t::kDeleted must be smaller than " - "ctrl_t::kSentinel to make the SIMD test of IsEmptyOrDeleted() efficient"); -static_assert( - ctrl_t::kSentinel == static_cast(-1), - "ctrl_t::kSentinel must be -1 to elide loading it from memory into SIMD " - "registers (pcmpeqd xmm, xmm)"); -static_assert(ctrl_t::kEmpty == static_cast(-128), - "ctrl_t::kEmpty must be -128 to make the SIMD check for its " - "existence efficient (psignb xmm, xmm)"); -static_assert( - (~static_cast(ctrl_t::kEmpty) & - ~static_cast(ctrl_t::kDeleted) & - static_cast(ctrl_t::kSentinel) & 0x7F) != 0, - "ctrl_t::kEmpty and ctrl_t::kDeleted must share an unset bit that is not " - "shared by ctrl_t::kSentinel to make the scalar test for " - "MaskEmptyOrDeleted() efficient"); -static_assert(ctrl_t::kDeleted == static_cast(-2), - "ctrl_t::kDeleted must be -2 to make the implementation of " - "ConvertSpecialToEmptyAndFullToDeleted efficient"); - -ABSL_DLL extern const ctrl_t kEmptyGroup[17]; - -// Returns a pointer to a control byte group that can be used by empty tables. -inline ctrl_t* EmptyGroup() { - // Const must be cast away here; no uses of this function will actually write - // to it, because it is only used for empty tables. - return const_cast(kEmptyGroup); -} - -// Returns a pointer to the generation byte at the end of the empty group, if it -// exists. -inline GenerationType* EmptyGeneration() { - return reinterpret_cast(EmptyGroup() + 16); -} - -// Mixes a randomly generated per-process seed with `hash` and `ctrl` to -// randomize insertion order within groups. -bool ShouldInsertBackwards(size_t hash, const ctrl_t* ctrl); - -// Returns a per-table, hash salt, which changes on resize. This gets mixed into -// H1 to randomize iteration order per-table. -// -// The seed consists of the ctrl_ pointer, which adds enough entropy to ensure -// non-determinism of iteration order in most cases. -inline size_t PerTableSalt(const ctrl_t* ctrl) { - // The low bits of the pointer have little or no entropy because of - // alignment. We shift the pointer to try to use higher entropy bits. A - // good number seems to be 12 bits, because that aligns with page size. - return reinterpret_cast(ctrl) >> 12; -} -// Extracts the H1 portion of a hash: 57 bits mixed with a per-table salt. -inline size_t H1(size_t hash, const ctrl_t* ctrl) { - return (hash >> 7) ^ PerTableSalt(ctrl); -} - -// Extracts the H2 portion of a hash: the 7 bits not used for H1. -// -// These are used as an occupied control byte. -inline h2_t H2(size_t hash) { return hash & 0x7F; } - -// Helpers for checking the state of a control byte. -inline bool IsEmpty(ctrl_t c) { return c == ctrl_t::kEmpty; } -inline bool IsFull(ctrl_t c) { return c >= static_cast(0); } -inline bool IsDeleted(ctrl_t c) { return c == ctrl_t::kDeleted; } -inline bool IsEmptyOrDeleted(ctrl_t c) { return c < ctrl_t::kSentinel; } - -#ifdef ABSL_INTERNAL_HAVE_SSE2 -// Quick reference guide for intrinsics used below: -// -// * __m128i: An XMM (128-bit) word. -// -// * _mm_setzero_si128: Returns a zero vector. -// * _mm_set1_epi8: Returns a vector with the same i8 in each lane. -// -// * _mm_subs_epi8: Saturating-subtracts two i8 vectors. -// * _mm_and_si128: Ands two i128s together. -// * _mm_or_si128: Ors two i128s together. -// * _mm_andnot_si128: And-nots two i128s together. -// -// * _mm_cmpeq_epi8: Component-wise compares two i8 vectors for equality, -// filling each lane with 0x00 or 0xff. -// * _mm_cmpgt_epi8: Same as above, but using > rather than ==. -// -// * _mm_loadu_si128: Performs an unaligned load of an i128. -// * _mm_storeu_si128: Performs an unaligned store of an i128. -// -// * _mm_sign_epi8: Retains, negates, or zeroes each i8 lane of the first -// argument if the corresponding lane of the second -// argument is positive, negative, or zero, respectively. -// * _mm_movemask_epi8: Selects the sign bit out of each i8 lane and produces a -// bitmask consisting of those bits. -// * _mm_shuffle_epi8: Selects i8s from the first argument, using the low -// four bits of each i8 lane in the second argument as -// indices. - -// https://github.com/abseil/abseil-cpp/issues/209 -// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87853 -// _mm_cmpgt_epi8 is broken under GCC with -funsigned-char -// Work around this by using the portable implementation of Group -// when using -funsigned-char under GCC. -inline __m128i _mm_cmpgt_epi8_fixed(__m128i a, __m128i b) { -#if defined(__GNUC__) && !defined(__clang__) - if (std::is_unsigned::value) { - const __m128i mask = _mm_set1_epi8(0x80); - const __m128i diff = _mm_subs_epi8(b, a); - return _mm_cmpeq_epi8(_mm_and_si128(diff, mask), mask); - } -#endif - return _mm_cmpgt_epi8(a, b); -} - -struct GroupSse2Impl { - static constexpr size_t kWidth = 16; // the number of slots per group - - explicit GroupSse2Impl(const ctrl_t* pos) { - ctrl = _mm_loadu_si128(reinterpret_cast(pos)); - } - - // Returns a bitmask representing the positions of slots that match hash. - BitMask Match(h2_t hash) const { - auto match = _mm_set1_epi8(static_cast(hash)); - return BitMask( - static_cast(_mm_movemask_epi8(_mm_cmpeq_epi8(match, ctrl)))); - } - - // Returns a bitmask representing the positions of empty slots. - NonIterableBitMask MaskEmpty() const { -#ifdef ABSL_INTERNAL_HAVE_SSSE3 - // This only works because ctrl_t::kEmpty is -128. - return NonIterableBitMask( - static_cast(_mm_movemask_epi8(_mm_sign_epi8(ctrl, ctrl)))); -#else - auto match = _mm_set1_epi8(static_cast(ctrl_t::kEmpty)); - return NonIterableBitMask( - static_cast(_mm_movemask_epi8(_mm_cmpeq_epi8(match, ctrl)))); -#endif - } - - // Returns a bitmask representing the positions of empty or deleted slots. - NonIterableBitMask MaskEmptyOrDeleted() const { - auto special = _mm_set1_epi8(static_cast(ctrl_t::kSentinel)); - return NonIterableBitMask(static_cast( - _mm_movemask_epi8(_mm_cmpgt_epi8_fixed(special, ctrl)))); - } - - // Returns the number of trailing empty or deleted elements in the group. - uint32_t CountLeadingEmptyOrDeleted() const { - auto special = _mm_set1_epi8(static_cast(ctrl_t::kSentinel)); - return TrailingZeros(static_cast( - _mm_movemask_epi8(_mm_cmpgt_epi8_fixed(special, ctrl)) + 1)); - } - - void ConvertSpecialToEmptyAndFullToDeleted(ctrl_t* dst) const { - auto msbs = _mm_set1_epi8(static_cast(-128)); - auto x126 = _mm_set1_epi8(126); -#ifdef ABSL_INTERNAL_HAVE_SSSE3 - auto res = _mm_or_si128(_mm_shuffle_epi8(x126, ctrl), msbs); -#else - auto zero = _mm_setzero_si128(); - auto special_mask = _mm_cmpgt_epi8_fixed(zero, ctrl); - auto res = _mm_or_si128(msbs, _mm_andnot_si128(special_mask, x126)); -#endif - _mm_storeu_si128(reinterpret_cast<__m128i*>(dst), res); - } - - __m128i ctrl; -}; -#endif // ABSL_INTERNAL_RAW_HASH_SET_HAVE_SSE2 - -#if defined(ABSL_INTERNAL_HAVE_ARM_NEON) && defined(ABSL_IS_LITTLE_ENDIAN) -struct GroupAArch64Impl { - static constexpr size_t kWidth = 8; - - explicit GroupAArch64Impl(const ctrl_t* pos) { - ctrl = vld1_u8(reinterpret_cast(pos)); - } - - BitMask Match(h2_t hash) const { - uint8x8_t dup = vdup_n_u8(hash); - auto mask = vceq_u8(ctrl, dup); - constexpr uint64_t msbs = 0x8080808080808080ULL; - return BitMask( - vget_lane_u64(vreinterpret_u64_u8(mask), 0) & msbs); - } - - NonIterableBitMask MaskEmpty() const { - uint64_t mask = - vget_lane_u64(vreinterpret_u64_u8(vceq_s8( - vdup_n_s8(static_cast(ctrl_t::kEmpty)), - vreinterpret_s8_u8(ctrl))), - 0); - return NonIterableBitMask(mask); - } - - NonIterableBitMask MaskEmptyOrDeleted() const { - uint64_t mask = - vget_lane_u64(vreinterpret_u64_u8(vcgt_s8( - vdup_n_s8(static_cast(ctrl_t::kSentinel)), - vreinterpret_s8_u8(ctrl))), - 0); - return NonIterableBitMask(mask); - } - - uint32_t CountLeadingEmptyOrDeleted() const { - uint64_t mask = - vget_lane_u64(vreinterpret_u64_u8(vcle_s8( - vdup_n_s8(static_cast(ctrl_t::kSentinel)), - vreinterpret_s8_u8(ctrl))), - 0); - // Similar to MaskEmptyorDeleted() but we invert the logic to invert the - // produced bitfield. We then count number of trailing zeros. - // Clang and GCC optimize countr_zero to rbit+clz without any check for 0, - // so we should be fine. - return static_cast(countr_zero(mask)) >> 3; - } - - void ConvertSpecialToEmptyAndFullToDeleted(ctrl_t* dst) const { - uint64_t mask = vget_lane_u64(vreinterpret_u64_u8(ctrl), 0); - constexpr uint64_t msbs = 0x8080808080808080ULL; - constexpr uint64_t lsbs = 0x0101010101010101ULL; - auto x = mask & msbs; - auto res = (~x + (x >> 7)) & ~lsbs; - little_endian::Store64(dst, res); - } - - uint8x8_t ctrl; -}; -#endif // ABSL_INTERNAL_HAVE_ARM_NEON && ABSL_IS_LITTLE_ENDIAN - -struct GroupPortableImpl { - static constexpr size_t kWidth = 8; - - explicit GroupPortableImpl(const ctrl_t* pos) - : ctrl(little_endian::Load64(pos)) {} - - BitMask Match(h2_t hash) const { - // For the technique, see: - // http://graphics.stanford.edu/~seander/bithacks.html##ValueInWord - // (Determine if a word has a byte equal to n). - // - // Caveat: there are false positives but: - // - they only occur if there is a real match - // - they never occur on ctrl_t::kEmpty, ctrl_t::kDeleted, ctrl_t::kSentinel - // - they will be handled gracefully by subsequent checks in code - // - // Example: - // v = 0x1716151413121110 - // hash = 0x12 - // retval = (v - lsbs) & ~v & msbs = 0x0000000080800000 - constexpr uint64_t msbs = 0x8080808080808080ULL; - constexpr uint64_t lsbs = 0x0101010101010101ULL; - auto x = ctrl ^ (lsbs * hash); - return BitMask((x - lsbs) & ~x & msbs); - } - - NonIterableBitMask MaskEmpty() const { - constexpr uint64_t msbs = 0x8080808080808080ULL; - return NonIterableBitMask((ctrl & (~ctrl << 6)) & - msbs); - } - - NonIterableBitMask MaskEmptyOrDeleted() const { - constexpr uint64_t msbs = 0x8080808080808080ULL; - return NonIterableBitMask((ctrl & (~ctrl << 7)) & - msbs); - } - - uint32_t CountLeadingEmptyOrDeleted() const { - // ctrl | ~(ctrl >> 7) will have the lowest bit set to zero for kEmpty and - // kDeleted. We lower all other bits and count number of trailing zeros. - constexpr uint64_t bits = 0x0101010101010101ULL; - return static_cast(countr_zero((ctrl | ~(ctrl >> 7)) & bits) >> - 3); - } - - void ConvertSpecialToEmptyAndFullToDeleted(ctrl_t* dst) const { - constexpr uint64_t msbs = 0x8080808080808080ULL; - constexpr uint64_t lsbs = 0x0101010101010101ULL; - auto x = ctrl & msbs; - auto res = (~x + (x >> 7)) & ~lsbs; - little_endian::Store64(dst, res); - } - - uint64_t ctrl; -}; - -#ifdef ABSL_INTERNAL_HAVE_SSE2 -using Group = GroupSse2Impl; -#elif defined(ABSL_INTERNAL_HAVE_ARM_NEON) && defined(ABSL_IS_LITTLE_ENDIAN) -using Group = GroupAArch64Impl; -#else -using Group = GroupPortableImpl; -#endif - -class CommonFieldsGenerationInfoEnabled { - // A sentinel value for reserved_growth_ indicating that we just ran out of - // reserved growth on the last insertion. When reserve is called and then - // insertions take place, reserved_growth_'s state machine is N, ..., 1, - // kReservedGrowthJustRanOut, 0. - static constexpr size_t kReservedGrowthJustRanOut = - (std::numeric_limits::max)(); - - public: - CommonFieldsGenerationInfoEnabled() = default; - CommonFieldsGenerationInfoEnabled(CommonFieldsGenerationInfoEnabled&& that) - : reserved_growth_(that.reserved_growth_), generation_(that.generation_) { - that.reserved_growth_ = 0; - that.generation_ = EmptyGeneration(); - } - CommonFieldsGenerationInfoEnabled& operator=( - CommonFieldsGenerationInfoEnabled&&) = default; - - // Whether we should rehash on insert in order to detect bugs of using invalid - // references. We rehash on the first insertion after reserved_growth_ reaches - // 0 after a call to reserve. - // TODO(b/254649633): we could potentially do a rehash with low probability - // whenever reserved_growth_ is zero. - bool should_rehash_for_bug_detection_on_insert() const { - return reserved_growth_ == kReservedGrowthJustRanOut; - } - void maybe_increment_generation_on_insert() { - if (reserved_growth_ == kReservedGrowthJustRanOut) reserved_growth_ = 0; - - if (reserved_growth_ > 0) { - if (--reserved_growth_ == 0) reserved_growth_ = kReservedGrowthJustRanOut; - } else { - ++*generation_; - } - } - void reset_reserved_growth(size_t reservation, size_t size) { - reserved_growth_ = reservation - size; - } - size_t reserved_growth() const { return reserved_growth_; } - void set_reserved_growth(size_t r) { reserved_growth_ = r; } - GenerationType generation() const { return *generation_; } - void set_generation(GenerationType g) { *generation_ = g; } - GenerationType* generation_ptr() const { return generation_; } - void set_generation_ptr(GenerationType* g) { generation_ = g; } - - private: - // The number of insertions remaining that are guaranteed to not rehash due to - // a prior call to reserve. Note: we store reserved growth rather than - // reservation size because calls to erase() decrease size_ but don't decrease - // reserved growth. - size_t reserved_growth_ = 0; - // Pointer to the generation counter, which is used to validate iterators and - // is stored in the backing array between the control bytes and the slots. - // Note that we can't store the generation inside the container itself and - // keep a pointer to the container in the iterators because iterators must - // remain valid when the container is moved. - // Note: we could derive this pointer from the control pointer, but it makes - // the code more complicated, and there's a benefit in having the sizes of - // raw_hash_set in sanitizer mode and non-sanitizer mode a bit more different, - // which is that tests are less likely to rely on the size remaining the same. - GenerationType* generation_ = EmptyGeneration(); -}; - -class CommonFieldsGenerationInfoDisabled { - public: - CommonFieldsGenerationInfoDisabled() = default; - CommonFieldsGenerationInfoDisabled(CommonFieldsGenerationInfoDisabled&&) = - default; - CommonFieldsGenerationInfoDisabled& operator=( - CommonFieldsGenerationInfoDisabled&&) = default; - - bool should_rehash_for_bug_detection_on_insert() const { return false; } - void maybe_increment_generation_on_insert() {} - void reset_reserved_growth(size_t, size_t) {} - size_t reserved_growth() const { return 0; } - void set_reserved_growth(size_t) {} - GenerationType generation() const { return 0; } - void set_generation(GenerationType) {} - GenerationType* generation_ptr() const { return nullptr; } - void set_generation_ptr(GenerationType*) {} -}; - -class HashSetIteratorGenerationInfoEnabled { - public: - HashSetIteratorGenerationInfoEnabled() = default; - explicit HashSetIteratorGenerationInfoEnabled( - const GenerationType* generation_ptr) - : generation_ptr_(generation_ptr), generation_(*generation_ptr) {} - - GenerationType generation() const { return generation_; } - void reset_generation() { generation_ = *generation_ptr_; } - const GenerationType* generation_ptr() const { return generation_ptr_; } - void set_generation_ptr(const GenerationType* ptr) { generation_ptr_ = ptr; } - - private: - const GenerationType* generation_ptr_ = EmptyGeneration(); - GenerationType generation_ = *generation_ptr_; -}; - -class HashSetIteratorGenerationInfoDisabled { - public: - HashSetIteratorGenerationInfoDisabled() = default; - explicit HashSetIteratorGenerationInfoDisabled(const GenerationType*) {} - - GenerationType generation() const { return 0; } - void reset_generation() {} - const GenerationType* generation_ptr() const { return nullptr; } - void set_generation_ptr(const GenerationType*) {} -}; - -#ifdef ABSL_SWISSTABLE_ENABLE_GENERATIONS -using CommonFieldsGenerationInfo = CommonFieldsGenerationInfoEnabled; -using HashSetIteratorGenerationInfo = HashSetIteratorGenerationInfoEnabled; -#else -using CommonFieldsGenerationInfo = CommonFieldsGenerationInfoDisabled; -using HashSetIteratorGenerationInfo = HashSetIteratorGenerationInfoDisabled; -#endif - -// CommonFields hold the fields in raw_hash_set that do not depend -// on template parameters. This allows us to conveniently pass all -// of this state to helper functions as a single argument. -class CommonFields : public CommonFieldsGenerationInfo { - public: - CommonFields() = default; - - // Not copyable - CommonFields(const CommonFields&) = delete; - CommonFields& operator=(const CommonFields&) = delete; - - // Movable - CommonFields(CommonFields&& that) - : CommonFieldsGenerationInfo( - std::move(static_cast(that))), - // Explicitly copying fields into "this" and then resetting "that" - // fields generates less code then calling absl::exchange per field. - control_(that.control_), - slots_(that.slots_), - size_(that.size_), - capacity_(that.capacity_), - compressed_tuple_(that.growth_left(), std::move(that.infoz())) { - that.control_ = EmptyGroup(); - that.slots_ = nullptr; - that.size_ = 0; - that.capacity_ = 0; - that.growth_left() = 0; - } - CommonFields& operator=(CommonFields&&) = default; - - // The number of slots we can still fill without needing to rehash. - size_t& growth_left() { return compressed_tuple_.template get<0>(); } - - HashtablezInfoHandle& infoz() { return compressed_tuple_.template get<1>(); } - const HashtablezInfoHandle& infoz() const { - return compressed_tuple_.template get<1>(); - } - - void reset_reserved_growth(size_t reservation) { - CommonFieldsGenerationInfo::reset_reserved_growth(reservation, size_); - } - - // TODO(b/259599413): Investigate removing some of these fields: - // - control/slots can be derived from each other - // - size can be moved into the slot array - - // The control bytes (and, also, a pointer to the base of the backing array). - // - // This contains `capacity + 1 + NumClonedBytes()` entries, even - // when the table is empty (hence EmptyGroup). - ctrl_t* control_ = EmptyGroup(); - - // The beginning of the slots, located at `SlotOffset()` bytes after - // `control`. May be null for empty tables. - void* slots_ = nullptr; - - // The number of filled slots. - size_t size_ = 0; - - // The total number of available slots. - size_t capacity_ = 0; - - // Bundle together growth_left and HashtablezInfoHandle to ensure EBO for - // HashtablezInfoHandle when sampling is turned off. - absl::container_internal::CompressedTuple - compressed_tuple_{0u, HashtablezInfoHandle{}}; -}; - -// Returns he number of "cloned control bytes". -// -// This is the number of control bytes that are present both at the beginning -// of the control byte array and at the end, such that we can create a -// `Group::kWidth`-width probe window starting from any control byte. -constexpr size_t NumClonedBytes() { return Group::kWidth - 1; } - -template -class raw_hash_set; - -// Returns whether `n` is a valid capacity (i.e., number of slots). -// -// A valid capacity is a non-zero integer `2^m - 1`. -inline bool IsValidCapacity(size_t n) { return ((n + 1) & n) == 0 && n > 0; } - -// Returns the next valid capacity after `n`. -inline size_t NextCapacity(size_t n) { - assert(IsValidCapacity(n) || n == 0); - return n * 2 + 1; -} - -// Applies the following mapping to every byte in the control array: -// * kDeleted -> kEmpty -// * kEmpty -> kEmpty -// * _ -> kDeleted -// PRECONDITION: -// IsValidCapacity(capacity) -// ctrl[capacity] == ctrl_t::kSentinel -// ctrl[i] != ctrl_t::kSentinel for all i < capacity -void ConvertDeletedToEmptyAndFullToDeleted(ctrl_t* ctrl, size_t capacity); - -// Converts `n` into the next valid capacity, per `IsValidCapacity`. -inline size_t NormalizeCapacity(size_t n) { - return n ? ~size_t{} >> countl_zero(n) : 1; -} - -// General notes on capacity/growth methods below: -// - We use 7/8th as maximum load factor. For 16-wide groups, that gives an -// average of two empty slots per group. -// - For (capacity+1) >= Group::kWidth, growth is 7/8*capacity. -// - For (capacity+1) < Group::kWidth, growth == capacity. In this case, we -// never need to probe (the whole table fits in one group) so we don't need a -// load factor less than 1. - -// Given `capacity`, applies the load factor; i.e., it returns the maximum -// number of values we should put into the table before a resizing rehash. -inline size_t CapacityToGrowth(size_t capacity) { - assert(IsValidCapacity(capacity)); - // `capacity*7/8` - if (Group::kWidth == 8 && capacity == 7) { - // x-x/8 does not work when x==7. - return 6; - } - return capacity - capacity / 8; -} - -// Given `growth`, "unapplies" the load factor to find how large the capacity -// should be to stay within the load factor. -// -// This might not be a valid capacity and `NormalizeCapacity()` should be -// called on this. -inline size_t GrowthToLowerboundCapacity(size_t growth) { - // `growth*8/7` - if (Group::kWidth == 8 && growth == 7) { - // x+(x-1)/7 does not work when x==7. - return 8; - } - return growth + static_cast((static_cast(growth) - 1) / 7); -} - -template -size_t SelectBucketCountForIterRange(InputIter first, InputIter last, - size_t bucket_count) { - if (bucket_count != 0) { - return bucket_count; - } - using InputIterCategory = - typename std::iterator_traits::iterator_category; - if (std::is_base_of::value) { - return GrowthToLowerboundCapacity( - static_cast(std::distance(first, last))); - } - return 0; -} - -#define ABSL_INTERNAL_ASSERT_IS_FULL(ctrl, generation, generation_ptr, \ - operation) \ - do { \ - ABSL_HARDENING_ASSERT( \ - (ctrl != nullptr) && operation \ - " called on invalid iterator. The iterator might be an end() " \ - "iterator or may have been default constructed."); \ - if (SwisstableGenerationsEnabled() && generation != *generation_ptr) \ - ABSL_INTERNAL_LOG(FATAL, operation \ - " called on invalidated iterator. The table could " \ - "have rehashed since this iterator was initialized."); \ - ABSL_HARDENING_ASSERT( \ - (IsFull(*ctrl)) && operation \ - " called on invalid iterator. The element might have been erased or " \ - "the table might have rehashed."); \ - } while (0) - -// Note that for comparisons, null/end iterators are valid. -inline void AssertIsValidForComparison(const ctrl_t* ctrl, - GenerationType generation, - const GenerationType* generation_ptr) { - ABSL_HARDENING_ASSERT((ctrl == nullptr || IsFull(*ctrl)) && - "Invalid iterator comparison. The element might have " - "been erased or the table might have rehashed."); - if (SwisstableGenerationsEnabled() && generation != *generation_ptr) { - ABSL_INTERNAL_LOG(FATAL, - "Invalid iterator comparison. The table could have " - "rehashed since this iterator was initialized."); - } -} - -// If the two iterators come from the same container, then their pointers will -// interleave such that ctrl_a <= ctrl_b < slot_a <= slot_b or vice/versa. -// Note: we take slots by reference so that it's not UB if they're uninitialized -// as long as we don't read them (when ctrl is null). -inline bool AreItersFromSameContainer(const ctrl_t* ctrl_a, - const ctrl_t* ctrl_b, - const void* const& slot_a, - const void* const& slot_b) { - // If either control byte is null, then we can't tell. - if (ctrl_a == nullptr || ctrl_b == nullptr) return true; - const void* low_slot = slot_a; - const void* hi_slot = slot_b; - if (ctrl_a > ctrl_b) { - std::swap(ctrl_a, ctrl_b); - std::swap(low_slot, hi_slot); - } - return ctrl_b < low_slot && low_slot <= hi_slot; -} - -// Asserts that two iterators come from the same container. -// Note: we take slots by reference so that it's not UB if they're uninitialized -// as long as we don't read them (when ctrl is null). -// TODO(b/254649633): when generations are enabled, we can detect more cases of -// different containers by comparing the pointers to the generations - this -// can cover cases of end iterators that we would otherwise miss. -inline void AssertSameContainer(const ctrl_t* ctrl_a, const ctrl_t* ctrl_b, - const void* const& slot_a, - const void* const& slot_b) { - ABSL_HARDENING_ASSERT( - AreItersFromSameContainer(ctrl_a, ctrl_b, slot_a, slot_b) && - "Invalid iterator comparison. The iterators may be from different " - "containers or the container might have rehashed."); -} - -struct FindInfo { - size_t offset; - size_t probe_length; -}; - -// Whether a table is "small". A small table fits entirely into a probing -// group, i.e., has a capacity < `Group::kWidth`. -// -// In small mode we are able to use the whole capacity. The extra control -// bytes give us at least one "empty" control byte to stop the iteration. -// This is important to make 1 a valid capacity. -// -// In small mode only the first `capacity` control bytes after the sentinel -// are valid. The rest contain dummy ctrl_t::kEmpty values that do not -// represent a real slot. This is important to take into account on -// `find_first_non_full()`, where we never try -// `ShouldInsertBackwards()` for small tables. -inline bool is_small(size_t capacity) { return capacity < Group::kWidth - 1; } - -// Begins a probing operation on `common.control`, using `hash`. -inline probe_seq probe(const CommonFields& common, size_t hash) { - const ctrl_t* ctrl = common.control_; - const size_t capacity = common.capacity_; - return probe_seq(H1(hash, ctrl), capacity); -} - -// Probes an array of control bits using a probe sequence derived from `hash`, -// and returns the offset corresponding to the first deleted or empty slot. -// -// Behavior when the entire table is full is undefined. -// -// NOTE: this function must work with tables having both empty and deleted -// slots in the same group. Such tables appear during `erase()`. -template -inline FindInfo find_first_non_full(const CommonFields& common, size_t hash) { - auto seq = probe(common, hash); - const ctrl_t* ctrl = common.control_; - while (true) { - Group g{ctrl + seq.offset()}; - auto mask = g.MaskEmptyOrDeleted(); - if (mask) { -#if !defined(NDEBUG) - // We want to add entropy even when ASLR is not enabled. - // In debug build we will randomly insert in either the front or back of - // the group. - // TODO(kfm,sbenza): revisit after we do unconditional mixing - if (!is_small(common.capacity_) && ShouldInsertBackwards(hash, ctrl)) { - return {seq.offset(mask.HighestBitSet()), seq.index()}; - } -#endif - return {seq.offset(mask.LowestBitSet()), seq.index()}; - } - seq.next(); - assert(seq.index() <= common.capacity_ && "full table!"); - } -} - -// Extern template for inline function keep possibility of inlining. -// When compiler decided to not inline, no symbols will be added to the -// corresponding translation unit. -extern template FindInfo find_first_non_full(const CommonFields&, size_t); - -// Non-inlined version of find_first_non_full for use in less -// performance critical routines. -FindInfo find_first_non_full_outofline(const CommonFields&, size_t); - -inline void ResetGrowthLeft(CommonFields& common) { - common.growth_left() = CapacityToGrowth(common.capacity_) - common.size_; -} - -// Sets `ctrl` to `{kEmpty, kSentinel, ..., kEmpty}`, marking the entire -// array as marked as empty. -inline void ResetCtrl(CommonFields& common, size_t slot_size) { - const size_t capacity = common.capacity_; - ctrl_t* ctrl = common.control_; - std::memset(ctrl, static_cast(ctrl_t::kEmpty), - capacity + 1 + NumClonedBytes()); - ctrl[capacity] = ctrl_t::kSentinel; - SanitizerPoisonMemoryRegion(common.slots_, slot_size * capacity); - ResetGrowthLeft(common); -} - -// Sets `ctrl[i]` to `h`. -// -// Unlike setting it directly, this function will perform bounds checks and -// mirror the value to the cloned tail if necessary. -inline void SetCtrl(const CommonFields& common, size_t i, ctrl_t h, - size_t slot_size) { - const size_t capacity = common.capacity_; - assert(i < capacity); - - auto* slot_i = static_cast(common.slots_) + i * slot_size; - if (IsFull(h)) { - SanitizerUnpoisonMemoryRegion(slot_i, slot_size); - } else { - SanitizerPoisonMemoryRegion(slot_i, slot_size); - } - - ctrl_t* ctrl = common.control_; - ctrl[i] = h; - ctrl[((i - NumClonedBytes()) & capacity) + (NumClonedBytes() & capacity)] = h; -} - -// Overload for setting to an occupied `h2_t` rather than a special `ctrl_t`. -inline void SetCtrl(const CommonFields& common, size_t i, h2_t h, - size_t slot_size) { - SetCtrl(common, i, static_cast(h), slot_size); -} - -// Given the capacity of a table, computes the offset (from the start of the -// backing allocation) of the generation counter (if it exists). -inline size_t GenerationOffset(size_t capacity) { - assert(IsValidCapacity(capacity)); - const size_t num_control_bytes = capacity + 1 + NumClonedBytes(); - return num_control_bytes; -} - -// Given the capacity of a table, computes the offset (from the start of the -// backing allocation) at which the slots begin. -inline size_t SlotOffset(size_t capacity, size_t slot_align) { - assert(IsValidCapacity(capacity)); - const size_t num_control_bytes = capacity + 1 + NumClonedBytes(); - return (num_control_bytes + NumGenerationBytes() + slot_align - 1) & - (~slot_align + 1); -} - -// Given the capacity of a table, computes the total size of the backing -// array. -inline size_t AllocSize(size_t capacity, size_t slot_size, size_t slot_align) { - return SlotOffset(capacity, slot_align) + capacity * slot_size; -} - -template -ABSL_ATTRIBUTE_NOINLINE void InitializeSlots(CommonFields& c, Alloc alloc) { - assert(c.capacity_); - // Folks with custom allocators often make unwarranted assumptions about the - // behavior of their classes vis-a-vis trivial destructability and what - // calls they will or won't make. Avoid sampling for people with custom - // allocators to get us out of this mess. This is not a hard guarantee but - // a workaround while we plan the exact guarantee we want to provide. - const size_t sample_size = - (std::is_same>::value && c.slots_ == nullptr) - ? SizeOfSlot - : 0; - - const size_t cap = c.capacity_; - char* mem = static_cast( - Allocate(&alloc, AllocSize(cap, SizeOfSlot, AlignOfSlot))); - const GenerationType old_generation = c.generation(); - c.set_generation_ptr( - reinterpret_cast(mem + GenerationOffset(cap))); - c.set_generation(old_generation + 1); - c.control_ = reinterpret_cast(mem); - c.slots_ = mem + SlotOffset(cap, AlignOfSlot); - ResetCtrl(c, SizeOfSlot); - if (sample_size) { - c.infoz() = Sample(sample_size); - } - c.infoz().RecordStorageChanged(c.size_, cap); -} - -// PolicyFunctions bundles together some information for a particular -// raw_hash_set instantiation. This information is passed to -// type-erased functions that want to do small amounts of type-specific -// work. -struct PolicyFunctions { - size_t slot_size; - - // Return the hash of the pointed-to slot. - size_t (*hash_slot)(void* set, void* slot); - - // Transfer the contents of src_slot to dst_slot. - void (*transfer)(void* set, void* dst_slot, void* src_slot); - - // Deallocate the specified backing store which is sized for n slots. - void (*dealloc)(void* set, const PolicyFunctions& policy, ctrl_t* ctrl, - void* slot_array, size_t n); -}; - -// ClearBackingArray clears the backing array, either modifying it in place, -// or creating a new one based on the value of "reuse". -// REQUIRES: c.capacity > 0 -void ClearBackingArray(CommonFields& c, const PolicyFunctions& policy, - bool reuse); - -// Type-erased version of raw_hash_set::erase_meta_only. -void EraseMetaOnly(CommonFields& c, ctrl_t* it, size_t slot_size); - -// Function to place in PolicyFunctions::dealloc for raw_hash_sets -// that are using std::allocator. This allows us to share the same -// function body for raw_hash_set instantiations that have the -// same slot alignment. -template -ABSL_ATTRIBUTE_NOINLINE void DeallocateStandard(void*, - const PolicyFunctions& policy, - ctrl_t* ctrl, void* slot_array, - size_t n) { - // Unpoison before returning the memory to the allocator. - SanitizerUnpoisonMemoryRegion(slot_array, policy.slot_size * n); - - std::allocator alloc; - Deallocate(&alloc, ctrl, - AllocSize(n, policy.slot_size, AlignOfSlot)); -} - -// For trivially relocatable types we use memcpy directly. This allows us to -// share the same function body for raw_hash_set instantiations that have the -// same slot size as long as they are relocatable. -template -ABSL_ATTRIBUTE_NOINLINE void TransferRelocatable(void*, void* dst, void* src) { - memcpy(dst, src, SizeOfSlot); -} - -// Type-erased version of raw_hash_set::drop_deletes_without_resize. -void DropDeletesWithoutResize(CommonFields& common, - const PolicyFunctions& policy, void* tmp_space); - -// A SwissTable. -// -// Policy: a policy defines how to perform different operations on -// the slots of the hashtable (see hash_policy_traits.h for the full interface -// of policy). -// -// Hash: a (possibly polymorphic) functor that hashes keys of the hashtable. The -// functor should accept a key and return size_t as hash. For best performance -// it is important that the hash function provides high entropy across all bits -// of the hash. -// -// Eq: a (possibly polymorphic) functor that compares two keys for equality. It -// should accept two (of possibly different type) keys and return a bool: true -// if they are equal, false if they are not. If two keys compare equal, then -// their hash values as defined by Hash MUST be equal. -// -// Allocator: an Allocator -// [https://en.cppreference.com/w/cpp/named_req/Allocator] with which -// the storage of the hashtable will be allocated and the elements will be -// constructed and destroyed. -template -class raw_hash_set { - using PolicyTraits = hash_policy_traits; - using KeyArgImpl = - KeyArg::value && IsTransparent::value>; - - public: - using init_type = typename PolicyTraits::init_type; - using key_type = typename PolicyTraits::key_type; - // TODO(sbenza): Hide slot_type as it is an implementation detail. Needs user - // code fixes! - using slot_type = typename PolicyTraits::slot_type; - using allocator_type = Alloc; - using size_type = size_t; - using difference_type = ptrdiff_t; - using hasher = Hash; - using key_equal = Eq; - using policy_type = Policy; - using value_type = typename PolicyTraits::value_type; - using reference = value_type&; - using const_reference = const value_type&; - using pointer = typename absl::allocator_traits< - allocator_type>::template rebind_traits::pointer; - using const_pointer = typename absl::allocator_traits< - allocator_type>::template rebind_traits::const_pointer; - - // Alias used for heterogeneous lookup functions. - // `key_arg` evaluates to `K` when the functors are transparent and to - // `key_type` otherwise. It permits template argument deduction on `K` for the - // transparent case. - template - using key_arg = typename KeyArgImpl::template type; - - private: - // Give an early error when key_type is not hashable/eq. - auto KeyTypeCanBeHashed(const Hash& h, const key_type& k) -> decltype(h(k)); - auto KeyTypeCanBeEq(const Eq& eq, const key_type& k) -> decltype(eq(k, k)); - - using AllocTraits = absl::allocator_traits; - using SlotAlloc = typename absl::allocator_traits< - allocator_type>::template rebind_alloc; - using SlotAllocTraits = typename absl::allocator_traits< - allocator_type>::template rebind_traits; - - static_assert(std::is_lvalue_reference::value, - "Policy::element() must return a reference"); - - template - struct SameAsElementReference - : std::is_same::type>::type, - typename std::remove_cv< - typename std::remove_reference::type>::type> {}; - - // An enabler for insert(T&&): T must be convertible to init_type or be the - // same as [cv] value_type [ref]. - // Note: we separate SameAsElementReference into its own type to avoid using - // reference unless we need to. MSVC doesn't seem to like it in some - // cases. - template - using RequiresInsertable = typename std::enable_if< - absl::disjunction, - SameAsElementReference>::value, - int>::type; - - // RequiresNotInit is a workaround for gcc prior to 7.1. - // See https://godbolt.org/g/Y4xsUh. - template - using RequiresNotInit = - typename std::enable_if::value, int>::type; - - template - using IsDecomposable = IsDecomposable; - - public: - static_assert(std::is_same::value, - "Allocators with custom pointer types are not supported"); - static_assert(std::is_same::value, - "Allocators with custom pointer types are not supported"); - - class iterator : private HashSetIteratorGenerationInfo { - friend class raw_hash_set; - - public: - using iterator_category = std::forward_iterator_tag; - using value_type = typename raw_hash_set::value_type; - using reference = - absl::conditional_t; - using pointer = absl::remove_reference_t*; - using difference_type = typename raw_hash_set::difference_type; - - iterator() {} - - // PRECONDITION: not an end() iterator. - reference operator*() const { - ABSL_INTERNAL_ASSERT_IS_FULL(ctrl_, generation(), generation_ptr(), - "operator*()"); - return PolicyTraits::element(slot_); - } - - // PRECONDITION: not an end() iterator. - pointer operator->() const { - ABSL_INTERNAL_ASSERT_IS_FULL(ctrl_, generation(), generation_ptr(), - "operator->"); - return &operator*(); - } - - // PRECONDITION: not an end() iterator. - iterator& operator++() { - ABSL_INTERNAL_ASSERT_IS_FULL(ctrl_, generation(), generation_ptr(), - "operator++"); - ++ctrl_; - ++slot_; - skip_empty_or_deleted(); - return *this; - } - // PRECONDITION: not an end() iterator. - iterator operator++(int) { - auto tmp = *this; - ++*this; - return tmp; - } - - friend bool operator==(const iterator& a, const iterator& b) { - AssertSameContainer(a.ctrl_, b.ctrl_, a.slot_, b.slot_); - AssertIsValidForComparison(a.ctrl_, a.generation(), a.generation_ptr()); - AssertIsValidForComparison(b.ctrl_, b.generation(), b.generation_ptr()); - return a.ctrl_ == b.ctrl_; - } - friend bool operator!=(const iterator& a, const iterator& b) { - return !(a == b); - } - - private: - iterator(ctrl_t* ctrl, slot_type* slot, - const GenerationType* generation_ptr) - : HashSetIteratorGenerationInfo(generation_ptr), - ctrl_(ctrl), - slot_(slot) { - // This assumption helps the compiler know that any non-end iterator is - // not equal to any end iterator. - ABSL_ASSUME(ctrl != nullptr); - } - // For end() iterators. - explicit iterator(const GenerationType* generation_ptr) - : HashSetIteratorGenerationInfo(generation_ptr) {} - - // Fixes up `ctrl_` to point to a full by advancing it and `slot_` until - // they reach one. - // - // If a sentinel is reached, we null `ctrl_` out instead. - void skip_empty_or_deleted() { - while (IsEmptyOrDeleted(*ctrl_)) { - uint32_t shift = Group{ctrl_}.CountLeadingEmptyOrDeleted(); - ctrl_ += shift; - slot_ += shift; - } - if (ABSL_PREDICT_FALSE(*ctrl_ == ctrl_t::kSentinel)) ctrl_ = nullptr; - } - - ctrl_t* ctrl_ = nullptr; - // To avoid uninitialized member warnings, put slot_ in an anonymous union. - // The member is not initialized on singleton and end iterators. - union { - slot_type* slot_; - }; - }; - - class const_iterator { - friend class raw_hash_set; - - public: - using iterator_category = typename iterator::iterator_category; - using value_type = typename raw_hash_set::value_type; - using reference = typename raw_hash_set::const_reference; - using pointer = typename raw_hash_set::const_pointer; - using difference_type = typename raw_hash_set::difference_type; - - const_iterator() = default; - // Implicit construction from iterator. - const_iterator(iterator i) : inner_(std::move(i)) {} // NOLINT - - reference operator*() const { return *inner_; } - pointer operator->() const { return inner_.operator->(); } - - const_iterator& operator++() { - ++inner_; - return *this; - } - const_iterator operator++(int) { return inner_++; } - - friend bool operator==(const const_iterator& a, const const_iterator& b) { - return a.inner_ == b.inner_; - } - friend bool operator!=(const const_iterator& a, const const_iterator& b) { - return !(a == b); - } - - private: - const_iterator(const ctrl_t* ctrl, const slot_type* slot, - const GenerationType* gen) - : inner_(const_cast(ctrl), const_cast(slot), gen) { - } - - iterator inner_; - }; - - using node_type = node_handle, Alloc>; - using insert_return_type = InsertReturnType; - - // Note: can't use `= default` due to non-default noexcept (causes - // problems for some compilers). NOLINTNEXTLINE - raw_hash_set() noexcept( - std::is_nothrow_default_constructible::value&& - std::is_nothrow_default_constructible::value&& - std::is_nothrow_default_constructible::value) {} - - ABSL_ATTRIBUTE_NOINLINE explicit raw_hash_set( - size_t bucket_count, const hasher& hash = hasher(), - const key_equal& eq = key_equal(), - const allocator_type& alloc = allocator_type()) - : settings_(CommonFields{}, hash, eq, alloc) { - if (bucket_count) { - common().capacity_ = NormalizeCapacity(bucket_count); - initialize_slots(); - } - } - - raw_hash_set(size_t bucket_count, const hasher& hash, - const allocator_type& alloc) - : raw_hash_set(bucket_count, hash, key_equal(), alloc) {} - - raw_hash_set(size_t bucket_count, const allocator_type& alloc) - : raw_hash_set(bucket_count, hasher(), key_equal(), alloc) {} - - explicit raw_hash_set(const allocator_type& alloc) - : raw_hash_set(0, hasher(), key_equal(), alloc) {} - - template - raw_hash_set(InputIter first, InputIter last, size_t bucket_count = 0, - const hasher& hash = hasher(), const key_equal& eq = key_equal(), - const allocator_type& alloc = allocator_type()) - : raw_hash_set(SelectBucketCountForIterRange(first, last, bucket_count), - hash, eq, alloc) { - insert(first, last); - } - - template - raw_hash_set(InputIter first, InputIter last, size_t bucket_count, - const hasher& hash, const allocator_type& alloc) - : raw_hash_set(first, last, bucket_count, hash, key_equal(), alloc) {} - - template - raw_hash_set(InputIter first, InputIter last, size_t bucket_count, - const allocator_type& alloc) - : raw_hash_set(first, last, bucket_count, hasher(), key_equal(), alloc) {} - - template - raw_hash_set(InputIter first, InputIter last, const allocator_type& alloc) - : raw_hash_set(first, last, 0, hasher(), key_equal(), alloc) {} - - // Instead of accepting std::initializer_list as the first - // argument like std::unordered_set does, we have two overloads - // that accept std::initializer_list and std::initializer_list. - // This is advantageous for performance. - // - // // Turns {"abc", "def"} into std::initializer_list, then - // // copies the strings into the set. - // std::unordered_set s = {"abc", "def"}; - // - // // Turns {"abc", "def"} into std::initializer_list, then - // // copies the strings into the set. - // absl::flat_hash_set s = {"abc", "def"}; - // - // The same trick is used in insert(). - // - // The enabler is necessary to prevent this constructor from triggering where - // the copy constructor is meant to be called. - // - // absl::flat_hash_set a, b{a}; - // - // RequiresNotInit is a workaround for gcc prior to 7.1. - template = 0, RequiresInsertable = 0> - raw_hash_set(std::initializer_list init, size_t bucket_count = 0, - const hasher& hash = hasher(), const key_equal& eq = key_equal(), - const allocator_type& alloc = allocator_type()) - : raw_hash_set(init.begin(), init.end(), bucket_count, hash, eq, alloc) {} - - raw_hash_set(std::initializer_list init, size_t bucket_count = 0, - const hasher& hash = hasher(), const key_equal& eq = key_equal(), - const allocator_type& alloc = allocator_type()) - : raw_hash_set(init.begin(), init.end(), bucket_count, hash, eq, alloc) {} - - template = 0, RequiresInsertable = 0> - raw_hash_set(std::initializer_list init, size_t bucket_count, - const hasher& hash, const allocator_type& alloc) - : raw_hash_set(init, bucket_count, hash, key_equal(), alloc) {} - - raw_hash_set(std::initializer_list init, size_t bucket_count, - const hasher& hash, const allocator_type& alloc) - : raw_hash_set(init, bucket_count, hash, key_equal(), alloc) {} - - template = 0, RequiresInsertable = 0> - raw_hash_set(std::initializer_list init, size_t bucket_count, - const allocator_type& alloc) - : raw_hash_set(init, bucket_count, hasher(), key_equal(), alloc) {} - - raw_hash_set(std::initializer_list init, size_t bucket_count, - const allocator_type& alloc) - : raw_hash_set(init, bucket_count, hasher(), key_equal(), alloc) {} - - template = 0, RequiresInsertable = 0> - raw_hash_set(std::initializer_list init, const allocator_type& alloc) - : raw_hash_set(init, 0, hasher(), key_equal(), alloc) {} - - raw_hash_set(std::initializer_list init, - const allocator_type& alloc) - : raw_hash_set(init, 0, hasher(), key_equal(), alloc) {} - - raw_hash_set(const raw_hash_set& that) - : raw_hash_set(that, AllocTraits::select_on_container_copy_construction( - that.alloc_ref())) {} - - raw_hash_set(const raw_hash_set& that, const allocator_type& a) - : raw_hash_set(0, that.hash_ref(), that.eq_ref(), a) { - reserve(that.size()); - // Because the table is guaranteed to be empty, we can do something faster - // than a full `insert`. - for (const auto& v : that) { - const size_t hash = PolicyTraits::apply(HashElement{hash_ref()}, v); - auto target = find_first_non_full_outofline(common(), hash); - SetCtrl(common(), target.offset, H2(hash), sizeof(slot_type)); - emplace_at(target.offset, v); - common().maybe_increment_generation_on_insert(); - infoz().RecordInsert(hash, target.probe_length); - } - common().size_ = that.size(); - growth_left() -= that.size(); - } - - ABSL_ATTRIBUTE_NOINLINE raw_hash_set(raw_hash_set&& that) noexcept( - std::is_nothrow_copy_constructible::value&& - std::is_nothrow_copy_constructible::value&& - std::is_nothrow_copy_constructible::value) - : // Hash, equality and allocator are copied instead of moved because - // `that` must be left valid. If Hash is std::function, moving it - // would create a nullptr functor that cannot be called. - settings_(absl::exchange(that.common(), CommonFields{}), - that.hash_ref(), that.eq_ref(), that.alloc_ref()) {} - - raw_hash_set(raw_hash_set&& that, const allocator_type& a) - : settings_(CommonFields{}, that.hash_ref(), that.eq_ref(), a) { - if (a == that.alloc_ref()) { - std::swap(common(), that.common()); - } else { - reserve(that.size()); - // Note: this will copy elements of dense_set and unordered_set instead of - // moving them. This can be fixed if it ever becomes an issue. - for (auto& elem : that) insert(std::move(elem)); - } - } - - raw_hash_set& operator=(const raw_hash_set& that) { - raw_hash_set tmp(that, - AllocTraits::propagate_on_container_copy_assignment::value - ? that.alloc_ref() - : alloc_ref()); - swap(tmp); - return *this; - } - - raw_hash_set& operator=(raw_hash_set&& that) noexcept( - absl::allocator_traits::is_always_equal::value&& - std::is_nothrow_move_assignable::value&& - std::is_nothrow_move_assignable::value) { - // TODO(sbenza): We should only use the operations from the noexcept clause - // to make sure we actually adhere to that contract. - // NOLINTNEXTLINE: not returning *this for performance. - return move_assign( - std::move(that), - typename AllocTraits::propagate_on_container_move_assignment()); - } - - ~raw_hash_set() { - const size_t cap = capacity(); - if (!cap) return; - destroy_slots(); - - // Unpoison before returning the memory to the allocator. - SanitizerUnpoisonMemoryRegion(slot_array(), sizeof(slot_type) * cap); - Deallocate( - &alloc_ref(), control(), - AllocSize(cap, sizeof(slot_type), alignof(slot_type))); - - infoz().Unregister(); - } - - iterator begin() { - auto it = iterator_at(0); - it.skip_empty_or_deleted(); - return it; - } - iterator end() { return iterator(common().generation_ptr()); } - - const_iterator begin() const { - return const_cast(this)->begin(); - } - const_iterator end() const { return iterator(common().generation_ptr()); } - const_iterator cbegin() const { return begin(); } - const_iterator cend() const { return end(); } - - bool empty() const { return !size(); } - size_t size() const { return common().size_; } - size_t capacity() const { return common().capacity_; } - size_t max_size() const { return (std::numeric_limits::max)(); } - - ABSL_ATTRIBUTE_REINITIALIZES void clear() { - // Iterating over this container is O(bucket_count()). When bucket_count() - // is much greater than size(), iteration becomes prohibitively expensive. - // For clear() it is more important to reuse the allocated array when the - // container is small because allocation takes comparatively long time - // compared to destruction of the elements of the container. So we pick the - // largest bucket_count() threshold for which iteration is still fast and - // past that we simply deallocate the array. - const size_t cap = capacity(); - if (cap == 0) { - // Already guaranteed to be empty; so nothing to do. - } else { - destroy_slots(); - ClearBackingArray(common(), GetPolicyFunctions(), - /*reuse=*/cap < 128); - } - common().set_reserved_growth(0); - } - - inline void destroy_slots() { - const size_t cap = capacity(); - const ctrl_t* ctrl = control(); - slot_type* slot = slot_array(); - for (size_t i = 0; i != cap; ++i) { - if (IsFull(ctrl[i])) { - PolicyTraits::destroy(&alloc_ref(), slot + i); - } - } - } - - // This overload kicks in when the argument is an rvalue of insertable and - // decomposable type other than init_type. - // - // flat_hash_map m; - // m.insert(std::make_pair("abc", 42)); - // TODO(cheshire): A type alias T2 is introduced as a workaround for the nvcc - // bug. - template = 0, class T2 = T, - typename std::enable_if::value, int>::type = 0, - T* = nullptr> - std::pair insert(T&& value) { - return emplace(std::forward(value)); - } - - // This overload kicks in when the argument is a bitfield or an lvalue of - // insertable and decomposable type. - // - // union { int n : 1; }; - // flat_hash_set s; - // s.insert(n); - // - // flat_hash_set s; - // const char* p = "hello"; - // s.insert(p); - // - // TODO(romanp): Once we stop supporting gcc 5.1 and below, replace - // RequiresInsertable with RequiresInsertable. - // We are hitting this bug: https://godbolt.org/g/1Vht4f. - template < - class T, RequiresInsertable = 0, - typename std::enable_if::value, int>::type = 0> - std::pair insert(const T& value) { - return emplace(value); - } - - // This overload kicks in when the argument is an rvalue of init_type. Its - // purpose is to handle brace-init-list arguments. - // - // flat_hash_map s; - // s.insert({"abc", 42}); - std::pair insert(init_type&& value) { - return emplace(std::move(value)); - } - - // TODO(cheshire): A type alias T2 is introduced as a workaround for the nvcc - // bug. - template = 0, class T2 = T, - typename std::enable_if::value, int>::type = 0, - T* = nullptr> - iterator insert(const_iterator, T&& value) { - return insert(std::forward(value)).first; - } - - // TODO(romanp): Once we stop supporting gcc 5.1 and below, replace - // RequiresInsertable with RequiresInsertable. - // We are hitting this bug: https://godbolt.org/g/1Vht4f. - template < - class T, RequiresInsertable = 0, - typename std::enable_if::value, int>::type = 0> - iterator insert(const_iterator, const T& value) { - return insert(value).first; - } - - iterator insert(const_iterator, init_type&& value) { - return insert(std::move(value)).first; - } - - template - void insert(InputIt first, InputIt last) { - for (; first != last; ++first) emplace(*first); - } - - template = 0, RequiresInsertable = 0> - void insert(std::initializer_list ilist) { - insert(ilist.begin(), ilist.end()); - } - - void insert(std::initializer_list ilist) { - insert(ilist.begin(), ilist.end()); - } - - insert_return_type insert(node_type&& node) { - if (!node) return {end(), false, node_type()}; - const auto& elem = PolicyTraits::element(CommonAccess::GetSlot(node)); - auto res = PolicyTraits::apply( - InsertSlot{*this, std::move(*CommonAccess::GetSlot(node))}, - elem); - if (res.second) { - CommonAccess::Reset(&node); - return {res.first, true, node_type()}; - } else { - return {res.first, false, std::move(node)}; - } - } - - iterator insert(const_iterator, node_type&& node) { - auto res = insert(std::move(node)); - node = std::move(res.node); - return res.position; - } - - // This overload kicks in if we can deduce the key from args. This enables us - // to avoid constructing value_type if an entry with the same key already - // exists. - // - // For example: - // - // flat_hash_map m = {{"abc", "def"}}; - // // Creates no std::string copies and makes no heap allocations. - // m.emplace("abc", "xyz"); - template ::value, int>::type = 0> - std::pair emplace(Args&&... args) { - return PolicyTraits::apply(EmplaceDecomposable{*this}, - std::forward(args)...); - } - - // This overload kicks in if we cannot deduce the key from args. It constructs - // value_type unconditionally and then either moves it into the table or - // destroys. - template ::value, int>::type = 0> - std::pair emplace(Args&&... args) { - alignas(slot_type) unsigned char raw[sizeof(slot_type)]; - slot_type* slot = reinterpret_cast(&raw); - - PolicyTraits::construct(&alloc_ref(), slot, std::forward(args)...); - const auto& elem = PolicyTraits::element(slot); - return PolicyTraits::apply(InsertSlot{*this, std::move(*slot)}, elem); - } - - template - iterator emplace_hint(const_iterator, Args&&... args) { - return emplace(std::forward(args)...).first; - } - - // Extension API: support for lazy emplace. - // - // Looks up key in the table. If found, returns the iterator to the element. - // Otherwise calls `f` with one argument of type `raw_hash_set::constructor`. - // - // `f` must abide by several restrictions: - // - it MUST call `raw_hash_set::constructor` with arguments as if a - // `raw_hash_set::value_type` is constructed, - // - it MUST NOT access the container before the call to - // `raw_hash_set::constructor`, and - // - it MUST NOT erase the lazily emplaced element. - // Doing any of these is undefined behavior. - // - // For example: - // - // std::unordered_set s; - // // Makes ArenaStr even if "abc" is in the map. - // s.insert(ArenaString(&arena, "abc")); - // - // flat_hash_set s; - // // Makes ArenaStr only if "abc" is not in the map. - // s.lazy_emplace("abc", [&](const constructor& ctor) { - // ctor(&arena, "abc"); - // }); - // - // WARNING: This API is currently experimental. If there is a way to implement - // the same thing with the rest of the API, prefer that. - class constructor { - friend class raw_hash_set; - - public: - template - void operator()(Args&&... args) const { - assert(*slot_); - PolicyTraits::construct(alloc_, *slot_, std::forward(args)...); - *slot_ = nullptr; - } - - private: - constructor(allocator_type* a, slot_type** slot) : alloc_(a), slot_(slot) {} - - allocator_type* alloc_; - slot_type** slot_; - }; - - template - iterator lazy_emplace(const key_arg& key, F&& f) { - auto res = find_or_prepare_insert(key); - if (res.second) { - slot_type* slot = slot_array() + res.first; - std::forward(f)(constructor(&alloc_ref(), &slot)); - assert(!slot); - } - return iterator_at(res.first); - } - - // Extension API: support for heterogeneous keys. - // - // std::unordered_set s; - // // Turns "abc" into std::string. - // s.erase("abc"); - // - // flat_hash_set s; - // // Uses "abc" directly without copying it into std::string. - // s.erase("abc"); - template - size_type erase(const key_arg& key) { - auto it = find(key); - if (it == end()) return 0; - erase(it); - return 1; - } - - // Erases the element pointed to by `it`. Unlike `std::unordered_set::erase`, - // this method returns void to reduce algorithmic complexity to O(1). The - // iterator is invalidated, so any increment should be done before calling - // erase. In order to erase while iterating across a map, use the following - // idiom (which also works for standard containers): - // - // for (auto it = m.begin(), end = m.end(); it != end;) { - // // `erase()` will invalidate `it`, so advance `it` first. - // auto copy_it = it++; - // if () { - // m.erase(copy_it); - // } - // } - void erase(const_iterator cit) { erase(cit.inner_); } - - // This overload is necessary because otherwise erase(const K&) would be - // a better match if non-const iterator is passed as an argument. - void erase(iterator it) { - ABSL_INTERNAL_ASSERT_IS_FULL(it.ctrl_, it.generation(), it.generation_ptr(), - "erase()"); - PolicyTraits::destroy(&alloc_ref(), it.slot_); - erase_meta_only(it); - } - - iterator erase(const_iterator first, const_iterator last) { - while (first != last) { - erase(first++); - } - return last.inner_; - } - - // Moves elements from `src` into `this`. - // If the element already exists in `this`, it is left unmodified in `src`. - template - void merge(raw_hash_set& src) { // NOLINT - assert(this != &src); - for (auto it = src.begin(), e = src.end(); it != e;) { - auto next = std::next(it); - if (PolicyTraits::apply(InsertSlot{*this, std::move(*it.slot_)}, - PolicyTraits::element(it.slot_)) - .second) { - src.erase_meta_only(it); - } - it = next; - } - } - - template - void merge(raw_hash_set&& src) { - merge(src); - } - - node_type extract(const_iterator position) { - ABSL_INTERNAL_ASSERT_IS_FULL(position.inner_.ctrl_, - position.inner_.generation(), - position.inner_.generation_ptr(), "extract()"); - auto node = - CommonAccess::Transfer(alloc_ref(), position.inner_.slot_); - erase_meta_only(position); - return node; - } - - template < - class K = key_type, - typename std::enable_if::value, int>::type = 0> - node_type extract(const key_arg& key) { - auto it = find(key); - return it == end() ? node_type() : extract(const_iterator{it}); - } - - void swap(raw_hash_set& that) noexcept( - IsNoThrowSwappable() && IsNoThrowSwappable() && - IsNoThrowSwappable( - typename AllocTraits::propagate_on_container_swap{})) { - using std::swap; - swap(common(), that.common()); - swap(hash_ref(), that.hash_ref()); - swap(eq_ref(), that.eq_ref()); - SwapAlloc(alloc_ref(), that.alloc_ref(), - typename AllocTraits::propagate_on_container_swap{}); - } - - void rehash(size_t n) { - if (n == 0 && capacity() == 0) return; - if (n == 0 && size() == 0) { - ClearBackingArray(common(), GetPolicyFunctions(), - /*reuse=*/false); - return; - } - - // bitor is a faster way of doing `max` here. We will round up to the next - // power-of-2-minus-1, so bitor is good enough. - auto m = NormalizeCapacity(n | GrowthToLowerboundCapacity(size())); - // n == 0 unconditionally rehashes as per the standard. - if (n == 0 || m > capacity()) { - resize(m); - - // This is after resize, to ensure that we have completed the allocation - // and have potentially sampled the hashtable. - infoz().RecordReservation(n); - } - } - - void reserve(size_t n) { - if (n > size() + growth_left()) { - size_t m = GrowthToLowerboundCapacity(n); - resize(NormalizeCapacity(m)); - - // This is after resize, to ensure that we have completed the allocation - // and have potentially sampled the hashtable. - infoz().RecordReservation(n); - } - common().reset_reserved_growth(n); - } - - // Extension API: support for heterogeneous keys. - // - // std::unordered_set s; - // // Turns "abc" into std::string. - // s.count("abc"); - // - // ch_set s; - // // Uses "abc" directly without copying it into std::string. - // s.count("abc"); - template - size_t count(const key_arg& key) const { - return find(key) == end() ? 0 : 1; - } - - // Issues CPU prefetch instructions for the memory needed to find or insert - // a key. Like all lookup functions, this support heterogeneous keys. - // - // NOTE: This is a very low level operation and should not be used without - // specific benchmarks indicating its importance. - template - void prefetch(const key_arg& key) const { - (void)key; - // Avoid probing if we won't be able to prefetch the addresses received. -#ifdef ABSL_INTERNAL_HAVE_PREFETCH - prefetch_heap_block(); - auto seq = probe(common(), hash_ref()(key)); - base_internal::PrefetchT0(control() + seq.offset()); - base_internal::PrefetchT0(slot_array() + seq.offset()); -#endif // ABSL_INTERNAL_HAVE_PREFETCH - } - - // The API of find() has two extensions. - // - // 1. The hash can be passed by the user. It must be equal to the hash of the - // key. - // - // 2. The type of the key argument doesn't have to be key_type. This is so - // called heterogeneous key support. - template - iterator find(const key_arg& key, size_t hash) { - auto seq = probe(common(), hash); - slot_type* slot_ptr = slot_array(); - const ctrl_t* ctrl = control(); - while (true) { - Group g{ctrl + seq.offset()}; - for (uint32_t i : g.Match(H2(hash))) { - if (ABSL_PREDICT_TRUE(PolicyTraits::apply( - EqualElement{key, eq_ref()}, - PolicyTraits::element(slot_ptr + seq.offset(i))))) - return iterator_at(seq.offset(i)); - } - if (ABSL_PREDICT_TRUE(g.MaskEmpty())) return end(); - seq.next(); - assert(seq.index() <= capacity() && "full table!"); - } - } - template - iterator find(const key_arg& key) { - prefetch_heap_block(); - return find(key, hash_ref()(key)); - } - - template - const_iterator find(const key_arg& key, size_t hash) const { - return const_cast(this)->find(key, hash); - } - template - const_iterator find(const key_arg& key) const { - prefetch_heap_block(); - return find(key, hash_ref()(key)); - } - - template - bool contains(const key_arg& key) const { - return find(key) != end(); - } - - template - std::pair equal_range(const key_arg& key) { - auto it = find(key); - if (it != end()) return {it, std::next(it)}; - return {it, it}; - } - template - std::pair equal_range( - const key_arg& key) const { - auto it = find(key); - if (it != end()) return {it, std::next(it)}; - return {it, it}; - } - - size_t bucket_count() const { return capacity(); } - float load_factor() const { - return capacity() ? static_cast(size()) / capacity() : 0.0; - } - float max_load_factor() const { return 1.0f; } - void max_load_factor(float) { - // Does nothing. - } - - hasher hash_function() const { return hash_ref(); } - key_equal key_eq() const { return eq_ref(); } - allocator_type get_allocator() const { return alloc_ref(); } - - friend bool operator==(const raw_hash_set& a, const raw_hash_set& b) { - if (a.size() != b.size()) return false; - const raw_hash_set* outer = &a; - const raw_hash_set* inner = &b; - if (outer->capacity() > inner->capacity()) std::swap(outer, inner); - for (const value_type& elem : *outer) - if (!inner->has_element(elem)) return false; - return true; - } - - friend bool operator!=(const raw_hash_set& a, const raw_hash_set& b) { - return !(a == b); - } - - template - friend typename std::enable_if::value, - H>::type - AbslHashValue(H h, const raw_hash_set& s) { - return H::combine(H::combine_unordered(std::move(h), s.begin(), s.end()), - s.size()); - } - - friend void swap(raw_hash_set& a, - raw_hash_set& b) noexcept(noexcept(a.swap(b))) { - a.swap(b); - } - - private: - template - friend struct absl::container_internal::hashtable_debug_internal:: - HashtableDebugAccess; - - struct FindElement { - template - const_iterator operator()(const K& key, Args&&...) const { - return s.find(key); - } - const raw_hash_set& s; - }; - - struct HashElement { - template - size_t operator()(const K& key, Args&&...) const { - return h(key); - } - const hasher& h; - }; - - template - struct EqualElement { - template - bool operator()(const K2& lhs, Args&&...) const { - return eq(lhs, rhs); - } - const K1& rhs; - const key_equal& eq; - }; - - struct EmplaceDecomposable { - template - std::pair operator()(const K& key, Args&&... args) const { - auto res = s.find_or_prepare_insert(key); - if (res.second) { - s.emplace_at(res.first, std::forward(args)...); - } - return {s.iterator_at(res.first), res.second}; - } - raw_hash_set& s; - }; - - template - struct InsertSlot { - template - std::pair operator()(const K& key, Args&&...) && { - auto res = s.find_or_prepare_insert(key); - if (res.second) { - PolicyTraits::transfer(&s.alloc_ref(), s.slot_array() + res.first, - &slot); - } else if (do_destroy) { - PolicyTraits::destroy(&s.alloc_ref(), &slot); - } - return {s.iterator_at(res.first), res.second}; - } - raw_hash_set& s; - // Constructed slot. Either moved into place or destroyed. - slot_type&& slot; - }; - - // Erases, but does not destroy, the value pointed to by `it`. - // - // This merely updates the pertinent control byte. This can be used in - // conjunction with Policy::transfer to move the object to another place. - void erase_meta_only(const_iterator it) { - EraseMetaOnly(common(), it.inner_.ctrl_, sizeof(slot_type)); - } - - // Allocates a backing array for `self` and initializes its control bytes. - // This reads `capacity` and updates all other fields based on the result of - // the allocation. - // - // This does not free the currently held array; `capacity` must be nonzero. - inline void initialize_slots() { - // People are often sloppy with the exact type of their allocator (sometimes - // it has an extra const or is missing the pair, but rebinds made it work - // anyway). - using CharAlloc = - typename absl::allocator_traits::template rebind_alloc; - InitializeSlots( - common(), CharAlloc(alloc_ref())); - } - - ABSL_ATTRIBUTE_NOINLINE void resize(size_t new_capacity) { - assert(IsValidCapacity(new_capacity)); - auto* old_ctrl = control(); - auto* old_slots = slot_array(); - const size_t old_capacity = common().capacity_; - common().capacity_ = new_capacity; - initialize_slots(); - - auto* new_slots = slot_array(); - size_t total_probe_length = 0; - for (size_t i = 0; i != old_capacity; ++i) { - if (IsFull(old_ctrl[i])) { - size_t hash = PolicyTraits::apply(HashElement{hash_ref()}, - PolicyTraits::element(old_slots + i)); - auto target = find_first_non_full(common(), hash); - size_t new_i = target.offset; - total_probe_length += target.probe_length; - SetCtrl(common(), new_i, H2(hash), sizeof(slot_type)); - PolicyTraits::transfer(&alloc_ref(), new_slots + new_i, old_slots + i); - } - } - if (old_capacity) { - SanitizerUnpoisonMemoryRegion(old_slots, - sizeof(slot_type) * old_capacity); - Deallocate( - &alloc_ref(), old_ctrl, - AllocSize(old_capacity, sizeof(slot_type), alignof(slot_type))); - } - infoz().RecordRehash(total_probe_length); - } - - // Prunes control bytes to remove as many tombstones as possible. - // - // See the comment on `rehash_and_grow_if_necessary()`. - inline void drop_deletes_without_resize() { - // Stack-allocate space for swapping elements. - alignas(slot_type) unsigned char tmp[sizeof(slot_type)]; - DropDeletesWithoutResize(common(), GetPolicyFunctions(), tmp); - } - - // Called whenever the table *might* need to conditionally grow. - // - // This function is an optimization opportunity to perform a rehash even when - // growth is unnecessary, because vacating tombstones is beneficial for - // performance in the long-run. - void rehash_and_grow_if_necessary() { - const size_t cap = capacity(); - if (cap > Group::kWidth && - // Do these calcuations in 64-bit to avoid overflow. - size() * uint64_t{32} <= cap* uint64_t{25}) { - // Squash DELETED without growing if there is enough capacity. - // - // Rehash in place if the current size is <= 25/32 of capacity. - // Rationale for such a high factor: 1) drop_deletes_without_resize() is - // faster than resize, and 2) it takes quite a bit of work to add - // tombstones. In the worst case, seems to take approximately 4 - // insert/erase pairs to create a single tombstone and so if we are - // rehashing because of tombstones, we can afford to rehash-in-place as - // long as we are reclaiming at least 1/8 the capacity without doing more - // than 2X the work. (Where "work" is defined to be size() for rehashing - // or rehashing in place, and 1 for an insert or erase.) But rehashing in - // place is faster per operation than inserting or even doubling the size - // of the table, so we actually afford to reclaim even less space from a - // resize-in-place. The decision is to rehash in place if we can reclaim - // at about 1/8th of the usable capacity (specifically 3/28 of the - // capacity) which means that the total cost of rehashing will be a small - // fraction of the total work. - // - // Here is output of an experiment using the BM_CacheInSteadyState - // benchmark running the old case (where we rehash-in-place only if we can - // reclaim at least 7/16*capacity) vs. this code (which rehashes in place - // if we can recover 3/32*capacity). - // - // Note that although in the worst-case number of rehashes jumped up from - // 15 to 190, but the number of operations per second is almost the same. - // - // Abridged output of running BM_CacheInSteadyState benchmark from - // raw_hash_set_benchmark. N is the number of insert/erase operations. - // - // | OLD (recover >= 7/16 | NEW (recover >= 3/32) - // size | N/s LoadFactor NRehashes | N/s LoadFactor NRehashes - // 448 | 145284 0.44 18 | 140118 0.44 19 - // 493 | 152546 0.24 11 | 151417 0.48 28 - // 538 | 151439 0.26 11 | 151152 0.53 38 - // 583 | 151765 0.28 11 | 150572 0.57 50 - // 628 | 150241 0.31 11 | 150853 0.61 66 - // 672 | 149602 0.33 12 | 150110 0.66 90 - // 717 | 149998 0.35 12 | 149531 0.70 129 - // 762 | 149836 0.37 13 | 148559 0.74 190 - // 807 | 149736 0.39 14 | 151107 0.39 14 - // 852 | 150204 0.42 15 | 151019 0.42 15 - drop_deletes_without_resize(); - } else { - // Otherwise grow the container. - resize(NextCapacity(cap)); - } - } - - bool has_element(const value_type& elem) const { - size_t hash = PolicyTraits::apply(HashElement{hash_ref()}, elem); - auto seq = probe(common(), hash); - const ctrl_t* ctrl = control(); - while (true) { - Group g{ctrl + seq.offset()}; - for (uint32_t i : g.Match(H2(hash))) { - if (ABSL_PREDICT_TRUE( - PolicyTraits::element(slot_array() + seq.offset(i)) == elem)) - return true; - } - if (ABSL_PREDICT_TRUE(g.MaskEmpty())) return false; - seq.next(); - assert(seq.index() <= capacity() && "full table!"); - } - return false; - } - - // TODO(alkis): Optimize this assuming *this and that don't overlap. - raw_hash_set& move_assign(raw_hash_set&& that, std::true_type) { - raw_hash_set tmp(std::move(that)); - swap(tmp); - return *this; - } - raw_hash_set& move_assign(raw_hash_set&& that, std::false_type) { - raw_hash_set tmp(std::move(that), alloc_ref()); - swap(tmp); - return *this; - } - - protected: - // Attempts to find `key` in the table; if it isn't found, returns a slot that - // the value can be inserted into, with the control byte already set to - // `key`'s H2. - template - std::pair find_or_prepare_insert(const K& key) { - prefetch_heap_block(); - auto hash = hash_ref()(key); - auto seq = probe(common(), hash); - const ctrl_t* ctrl = control(); - while (true) { - Group g{ctrl + seq.offset()}; - for (uint32_t i : g.Match(H2(hash))) { - if (ABSL_PREDICT_TRUE(PolicyTraits::apply( - EqualElement{key, eq_ref()}, - PolicyTraits::element(slot_array() + seq.offset(i))))) - return {seq.offset(i), false}; - } - if (ABSL_PREDICT_TRUE(g.MaskEmpty())) break; - seq.next(); - assert(seq.index() <= capacity() && "full table!"); - } - return {prepare_insert(hash), true}; - } - - // Given the hash of a value not currently in the table, finds the next - // viable slot index to insert it at. - // - // REQUIRES: At least one non-full slot available. - size_t prepare_insert(size_t hash) ABSL_ATTRIBUTE_NOINLINE { - const bool rehash_for_bug_detection = - common().should_rehash_for_bug_detection_on_insert(); - if (rehash_for_bug_detection) { - // Move to a different heap allocation in order to detect bugs. - const size_t cap = capacity(); - resize(growth_left() > 0 ? cap : NextCapacity(cap)); - } - auto target = find_first_non_full(common(), hash); - if (!rehash_for_bug_detection && - ABSL_PREDICT_FALSE(growth_left() == 0 && - !IsDeleted(control()[target.offset]))) { - rehash_and_grow_if_necessary(); - target = find_first_non_full(common(), hash); - } - ++common().size_; - growth_left() -= IsEmpty(control()[target.offset]); - SetCtrl(common(), target.offset, H2(hash), sizeof(slot_type)); - common().maybe_increment_generation_on_insert(); - infoz().RecordInsert(hash, target.probe_length); - return target.offset; - } - - // Constructs the value in the space pointed by the iterator. This only works - // after an unsuccessful find_or_prepare_insert() and before any other - // modifications happen in the raw_hash_set. - // - // PRECONDITION: i is an index returned from find_or_prepare_insert(k), where - // k is the key decomposed from `forward(args)...`, and the bool - // returned by find_or_prepare_insert(k) was true. - // POSTCONDITION: *m.iterator_at(i) == value_type(forward(args)...). - template - void emplace_at(size_t i, Args&&... args) { - PolicyTraits::construct(&alloc_ref(), slot_array() + i, - std::forward(args)...); - - assert(PolicyTraits::apply(FindElement{*this}, *iterator_at(i)) == - iterator_at(i) && - "constructed value does not match the lookup key"); - } - - iterator iterator_at(size_t i) { - return {control() + i, slot_array() + i, common().generation_ptr()}; - } - const_iterator iterator_at(size_t i) const { - return {control() + i, slot_array() + i, common().generation_ptr()}; - } - - private: - friend struct RawHashSetTestOnlyAccess; - - // The number of slots we can still fill without needing to rehash. - // - // This is stored separately due to tombstones: we do not include tombstones - // in the growth capacity, because we'd like to rehash when the table is - // otherwise filled with tombstones: otherwise, probe sequences might get - // unacceptably long without triggering a rehash. Callers can also force a - // rehash via the standard `rehash(0)`, which will recompute this value as a - // side-effect. - // - // See `CapacityToGrowth()`. - size_t& growth_left() { return common().growth_left(); } - - // Prefetch the heap-allocated memory region to resolve potential TLB misses. - // This is intended to overlap with execution of calculating the hash for a - // key. - void prefetch_heap_block() const { base_internal::PrefetchT2(control()); } - - CommonFields& common() { return settings_.template get<0>(); } - const CommonFields& common() const { return settings_.template get<0>(); } - - ctrl_t* control() const { return common().control_; } - slot_type* slot_array() const { - return static_cast(common().slots_); - } - HashtablezInfoHandle& infoz() { return common().infoz(); } - - hasher& hash_ref() { return settings_.template get<1>(); } - const hasher& hash_ref() const { return settings_.template get<1>(); } - key_equal& eq_ref() { return settings_.template get<2>(); } - const key_equal& eq_ref() const { return settings_.template get<2>(); } - allocator_type& alloc_ref() { return settings_.template get<3>(); } - const allocator_type& alloc_ref() const { - return settings_.template get<3>(); - } - - // Make type-specific functions for this type's PolicyFunctions struct. - static size_t hash_slot_fn(void* set, void* slot) { - auto* h = static_cast(set); - return PolicyTraits::apply( - HashElement{h->hash_ref()}, - PolicyTraits::element(static_cast(slot))); - } - static void transfer_slot_fn(void* set, void* dst, void* src) { - auto* h = static_cast(set); - PolicyTraits::transfer(&h->alloc_ref(), static_cast(dst), - static_cast(src)); - } - // Note: dealloc_fn will only be used if we have a non-standard allocator. - static void dealloc_fn(void* set, const PolicyFunctions&, ctrl_t* ctrl, - void* slot_mem, size_t n) { - auto* h = static_cast(set); - - // Unpoison before returning the memory to the allocator. - SanitizerUnpoisonMemoryRegion(slot_mem, sizeof(slot_type) * n); - - Deallocate( - &h->alloc_ref(), ctrl, - AllocSize(n, sizeof(slot_type), alignof(slot_type))); - } - - static const PolicyFunctions& GetPolicyFunctions() { - static constexpr PolicyFunctions value = { - sizeof(slot_type), - &raw_hash_set::hash_slot_fn, - PolicyTraits::transfer_uses_memcpy() - ? TransferRelocatable - : &raw_hash_set::transfer_slot_fn, - (std::is_same>::value - ? &DeallocateStandard - : &raw_hash_set::dealloc_fn), - }; - return value; - } - - // Bundle together CommonFields plus other objects which might be empty. - // CompressedTuple will ensure that sizeof is not affected by any of the empty - // fields that occur after CommonFields. - absl::container_internal::CompressedTuple - settings_{CommonFields{}, hasher{}, key_equal{}, allocator_type{}}; -}; - -// Erases all elements that satisfy the predicate `pred` from the container `c`. -template -typename raw_hash_set::size_type EraseIf( - Predicate& pred, raw_hash_set* c) { - const auto initial_size = c->size(); - for (auto it = c->begin(), last = c->end(); it != last;) { - if (pred(*it)) { - c->erase(it++); - } else { - ++it; - } - } - return initial_size - c->size(); -} - -namespace hashtable_debug_internal { -template -struct HashtableDebugAccess> { - using Traits = typename Set::PolicyTraits; - using Slot = typename Traits::slot_type; - - static size_t GetNumProbes(const Set& set, - const typename Set::key_type& key) { - size_t num_probes = 0; - size_t hash = set.hash_ref()(key); - auto seq = probe(set.common(), hash); - const ctrl_t* ctrl = set.control(); - while (true) { - container_internal::Group g{ctrl + seq.offset()}; - for (uint32_t i : g.Match(container_internal::H2(hash))) { - if (Traits::apply( - typename Set::template EqualElement{ - key, set.eq_ref()}, - Traits::element(set.slot_array() + seq.offset(i)))) - return num_probes; - ++num_probes; - } - if (g.MaskEmpty()) return num_probes; - seq.next(); - ++num_probes; - } - } - - static size_t AllocatedByteSize(const Set& c) { - size_t capacity = c.capacity(); - if (capacity == 0) return 0; - size_t m = AllocSize(capacity, sizeof(Slot), alignof(Slot)); - - size_t per_slot = Traits::space_used(static_cast(nullptr)); - if (per_slot != ~size_t{}) { - m += per_slot * c.size(); - } else { - const ctrl_t* ctrl = c.control(); - for (size_t i = 0; i != capacity; ++i) { - if (container_internal::IsFull(ctrl[i])) { - m += Traits::space_used(c.slot_array() + i); - } - } - } - return m; - } - - static size_t LowerBoundAllocatedByteSize(size_t size) { - size_t capacity = GrowthToLowerboundCapacity(size); - if (capacity == 0) return 0; - size_t m = - AllocSize(NormalizeCapacity(capacity), sizeof(Slot), alignof(Slot)); - size_t per_slot = Traits::space_used(static_cast(nullptr)); - if (per_slot != ~size_t{}) { - m += per_slot * size; - } - return m; - } -}; - -} // namespace hashtable_debug_internal -} // namespace container_internal -ABSL_NAMESPACE_END -} // namespace absl - -#undef ABSL_SWISSTABLE_ENABLE_GENERATIONS -#undef ABSL_INTERNAL_ASSERT_IS_FULL - -#endif // ABSL_CONTAINER_INTERNAL_RAW_HASH_SET_H_ diff --git a/src/third_party/abseil-cpp/absl/container/internal/raw_hash_set_allocator_test.cc b/src/third_party/abseil-cpp/absl/container/internal/raw_hash_set_allocator_test.cc deleted file mode 100644 index e73f53fd63..0000000000 --- a/src/third_party/abseil-cpp/absl/container/internal/raw_hash_set_allocator_test.cc +++ /dev/null @@ -1,505 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include -#include - -#include "gtest/gtest.h" -#include "absl/container/internal/raw_hash_set.h" -#include "absl/container/internal/tracked.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace container_internal { -namespace { - -enum AllocSpec { - kPropagateOnCopy = 1, - kPropagateOnMove = 2, - kPropagateOnSwap = 4, -}; - -struct AllocState { - size_t num_allocs = 0; - std::set owned; -}; - -template -class CheckedAlloc { - public: - template - friend class CheckedAlloc; - - using value_type = T; - - CheckedAlloc() {} - explicit CheckedAlloc(size_t id) : id_(id) {} - CheckedAlloc(const CheckedAlloc&) = default; - CheckedAlloc& operator=(const CheckedAlloc&) = default; - - template - CheckedAlloc(const CheckedAlloc& that) - : id_(that.id_), state_(that.state_) {} - - template - struct rebind { - using other = CheckedAlloc; - }; - - using propagate_on_container_copy_assignment = - std::integral_constant; - - using propagate_on_container_move_assignment = - std::integral_constant; - - using propagate_on_container_swap = - std::integral_constant; - - CheckedAlloc select_on_container_copy_construction() const { - if (Spec & kPropagateOnCopy) return *this; - return {}; - } - - T* allocate(size_t n) { - T* ptr = std::allocator().allocate(n); - track_alloc(ptr); - return ptr; - } - void deallocate(T* ptr, size_t n) { - memset(ptr, 0, n * sizeof(T)); // The freed memory must be unpoisoned. - track_dealloc(ptr); - return std::allocator().deallocate(ptr, n); - } - - friend bool operator==(const CheckedAlloc& a, const CheckedAlloc& b) { - return a.id_ == b.id_; - } - friend bool operator!=(const CheckedAlloc& a, const CheckedAlloc& b) { - return !(a == b); - } - - size_t num_allocs() const { return state_->num_allocs; } - - void swap(CheckedAlloc& that) { - using std::swap; - swap(id_, that.id_); - swap(state_, that.state_); - } - - friend void swap(CheckedAlloc& a, CheckedAlloc& b) { a.swap(b); } - - friend std::ostream& operator<<(std::ostream& o, const CheckedAlloc& a) { - return o << "alloc(" << a.id_ << ")"; - } - - private: - void track_alloc(void* ptr) { - AllocState* state = state_.get(); - ++state->num_allocs; - if (!state->owned.insert(ptr).second) - ADD_FAILURE() << *this << " got previously allocated memory: " << ptr; - } - void track_dealloc(void* ptr) { - if (state_->owned.erase(ptr) != 1) - ADD_FAILURE() << *this - << " deleting memory owned by another allocator: " << ptr; - } - - size_t id_ = std::numeric_limits::max(); - - std::shared_ptr state_ = std::make_shared(); -}; - -struct Identity { - int32_t operator()(int32_t v) const { return v; } -}; - -struct Policy { - using slot_type = Tracked; - using init_type = Tracked; - using key_type = int32_t; - - template - static void construct(allocator_type* alloc, slot_type* slot, - Args&&... args) { - std::allocator_traits::construct( - *alloc, slot, std::forward(args)...); - } - - template - static void destroy(allocator_type* alloc, slot_type* slot) { - std::allocator_traits::destroy(*alloc, slot); - } - - template - static void transfer(allocator_type* alloc, slot_type* new_slot, - slot_type* old_slot) { - construct(alloc, new_slot, std::move(*old_slot)); - destroy(alloc, old_slot); - } - - template - static auto apply(F&& f, int32_t v) -> decltype(std::forward(f)(v, v)) { - return std::forward(f)(v, v); - } - - template - static auto apply(F&& f, const slot_type& v) - -> decltype(std::forward(f)(v.val(), v)) { - return std::forward(f)(v.val(), v); - } - - template - static auto apply(F&& f, slot_type&& v) - -> decltype(std::forward(f)(v.val(), std::move(v))) { - return std::forward(f)(v.val(), std::move(v)); - } - - static slot_type& element(slot_type* slot) { return *slot; } -}; - -template -struct PropagateTest : public ::testing::Test { - using Alloc = CheckedAlloc, Spec>; - - using Table = raw_hash_set, Alloc>; - - PropagateTest() { - EXPECT_EQ(a1, t1.get_allocator()); - EXPECT_NE(a2, t1.get_allocator()); - } - - Alloc a1 = Alloc(1); - Table t1 = Table(0, a1); - Alloc a2 = Alloc(2); -}; - -using PropagateOnAll = - PropagateTest; -using NoPropagateOnCopy = PropagateTest; -using NoPropagateOnMove = PropagateTest; - -TEST_F(PropagateOnAll, Empty) { EXPECT_EQ(0, a1.num_allocs()); } - -TEST_F(PropagateOnAll, InsertAllocates) { - auto it = t1.insert(0).first; - EXPECT_EQ(1, a1.num_allocs()); - EXPECT_EQ(0, it->num_moves()); - EXPECT_EQ(0, it->num_copies()); -} - -TEST_F(PropagateOnAll, InsertDecomposes) { - auto it = t1.insert(0).first; - EXPECT_EQ(1, a1.num_allocs()); - EXPECT_EQ(0, it->num_moves()); - EXPECT_EQ(0, it->num_copies()); - - EXPECT_FALSE(t1.insert(0).second); - EXPECT_EQ(1, a1.num_allocs()); - EXPECT_EQ(0, it->num_moves()); - EXPECT_EQ(0, it->num_copies()); -} - -TEST_F(PropagateOnAll, RehashMoves) { - auto it = t1.insert(0).first; - EXPECT_EQ(0, it->num_moves()); - t1.rehash(2 * t1.capacity()); - EXPECT_EQ(2, a1.num_allocs()); - it = t1.find(0); - EXPECT_EQ(1, it->num_moves()); - EXPECT_EQ(0, it->num_copies()); -} - -TEST_F(PropagateOnAll, CopyConstructor) { - auto it = t1.insert(0).first; - Table u(t1); - EXPECT_EQ(2, a1.num_allocs()); - EXPECT_EQ(0, it->num_moves()); - EXPECT_EQ(1, it->num_copies()); -} - -TEST_F(NoPropagateOnCopy, CopyConstructor) { - auto it = t1.insert(0).first; - Table u(t1); - EXPECT_EQ(1, a1.num_allocs()); - EXPECT_EQ(1, u.get_allocator().num_allocs()); - EXPECT_EQ(0, it->num_moves()); - EXPECT_EQ(1, it->num_copies()); -} - -TEST_F(PropagateOnAll, CopyConstructorWithSameAlloc) { - auto it = t1.insert(0).first; - Table u(t1, a1); - EXPECT_EQ(2, a1.num_allocs()); - EXPECT_EQ(0, it->num_moves()); - EXPECT_EQ(1, it->num_copies()); -} - -TEST_F(NoPropagateOnCopy, CopyConstructorWithSameAlloc) { - auto it = t1.insert(0).first; - Table u(t1, a1); - EXPECT_EQ(2, a1.num_allocs()); - EXPECT_EQ(0, it->num_moves()); - EXPECT_EQ(1, it->num_copies()); -} - -TEST_F(PropagateOnAll, CopyConstructorWithDifferentAlloc) { - auto it = t1.insert(0).first; - Table u(t1, a2); - EXPECT_EQ(a2, u.get_allocator()); - EXPECT_EQ(1, a1.num_allocs()); - EXPECT_EQ(1, a2.num_allocs()); - EXPECT_EQ(0, it->num_moves()); - EXPECT_EQ(1, it->num_copies()); -} - -TEST_F(NoPropagateOnCopy, CopyConstructorWithDifferentAlloc) { - auto it = t1.insert(0).first; - Table u(t1, a2); - EXPECT_EQ(a2, u.get_allocator()); - EXPECT_EQ(1, a1.num_allocs()); - EXPECT_EQ(1, a2.num_allocs()); - EXPECT_EQ(0, it->num_moves()); - EXPECT_EQ(1, it->num_copies()); -} - -TEST_F(PropagateOnAll, MoveConstructor) { - auto it = t1.insert(0).first; - Table u(std::move(t1)); - EXPECT_EQ(1, a1.num_allocs()); - EXPECT_EQ(0, it->num_moves()); - EXPECT_EQ(0, it->num_copies()); -} - -TEST_F(NoPropagateOnMove, MoveConstructor) { - auto it = t1.insert(0).first; - Table u(std::move(t1)); - EXPECT_EQ(1, a1.num_allocs()); - EXPECT_EQ(0, it->num_moves()); - EXPECT_EQ(0, it->num_copies()); -} - -TEST_F(PropagateOnAll, MoveConstructorWithSameAlloc) { - auto it = t1.insert(0).first; - Table u(std::move(t1), a1); - EXPECT_EQ(1, a1.num_allocs()); - EXPECT_EQ(0, it->num_moves()); - EXPECT_EQ(0, it->num_copies()); -} - -TEST_F(NoPropagateOnMove, MoveConstructorWithSameAlloc) { - auto it = t1.insert(0).first; - Table u(std::move(t1), a1); - EXPECT_EQ(1, a1.num_allocs()); - EXPECT_EQ(0, it->num_moves()); - EXPECT_EQ(0, it->num_copies()); -} - -TEST_F(PropagateOnAll, MoveConstructorWithDifferentAlloc) { - auto it = t1.insert(0).first; - Table u(std::move(t1), a2); - it = u.find(0); - EXPECT_EQ(a2, u.get_allocator()); - EXPECT_EQ(1, a1.num_allocs()); - EXPECT_EQ(1, a2.num_allocs()); - EXPECT_EQ(1, it->num_moves()); - EXPECT_EQ(0, it->num_copies()); -} - -TEST_F(NoPropagateOnMove, MoveConstructorWithDifferentAlloc) { - auto it = t1.insert(0).first; - Table u(std::move(t1), a2); - it = u.find(0); - EXPECT_EQ(a2, u.get_allocator()); - EXPECT_EQ(1, a1.num_allocs()); - EXPECT_EQ(1, a2.num_allocs()); - EXPECT_EQ(1, it->num_moves()); - EXPECT_EQ(0, it->num_copies()); -} - -TEST_F(PropagateOnAll, CopyAssignmentWithSameAlloc) { - auto it = t1.insert(0).first; - Table u(0, a1); - u = t1; - EXPECT_EQ(2, a1.num_allocs()); - EXPECT_EQ(0, it->num_moves()); - EXPECT_EQ(1, it->num_copies()); -} - -TEST_F(NoPropagateOnCopy, CopyAssignmentWithSameAlloc) { - auto it = t1.insert(0).first; - Table u(0, a1); - u = t1; - EXPECT_EQ(2, a1.num_allocs()); - EXPECT_EQ(0, it->num_moves()); - EXPECT_EQ(1, it->num_copies()); -} - -TEST_F(PropagateOnAll, CopyAssignmentWithDifferentAlloc) { - auto it = t1.insert(0).first; - Table u(0, a2); - u = t1; - EXPECT_EQ(a1, u.get_allocator()); - EXPECT_EQ(2, a1.num_allocs()); - EXPECT_EQ(0, a2.num_allocs()); - EXPECT_EQ(0, it->num_moves()); - EXPECT_EQ(1, it->num_copies()); -} - -TEST_F(NoPropagateOnCopy, CopyAssignmentWithDifferentAlloc) { - auto it = t1.insert(0).first; - Table u(0, a2); - u = t1; - EXPECT_EQ(a2, u.get_allocator()); - EXPECT_EQ(1, a1.num_allocs()); - EXPECT_EQ(1, a2.num_allocs()); - EXPECT_EQ(0, it->num_moves()); - EXPECT_EQ(1, it->num_copies()); -} - -TEST_F(PropagateOnAll, MoveAssignmentWithSameAlloc) { - auto it = t1.insert(0).first; - Table u(0, a1); - u = std::move(t1); - EXPECT_EQ(a1, u.get_allocator()); - EXPECT_EQ(1, a1.num_allocs()); - EXPECT_EQ(0, it->num_moves()); - EXPECT_EQ(0, it->num_copies()); -} - -TEST_F(NoPropagateOnMove, MoveAssignmentWithSameAlloc) { - auto it = t1.insert(0).first; - Table u(0, a1); - u = std::move(t1); - EXPECT_EQ(a1, u.get_allocator()); - EXPECT_EQ(1, a1.num_allocs()); - EXPECT_EQ(0, it->num_moves()); - EXPECT_EQ(0, it->num_copies()); -} - -TEST_F(PropagateOnAll, MoveAssignmentWithDifferentAlloc) { - auto it = t1.insert(0).first; - Table u(0, a2); - u = std::move(t1); - EXPECT_EQ(a1, u.get_allocator()); - EXPECT_EQ(1, a1.num_allocs()); - EXPECT_EQ(0, a2.num_allocs()); - EXPECT_EQ(0, it->num_moves()); - EXPECT_EQ(0, it->num_copies()); -} - -TEST_F(NoPropagateOnMove, MoveAssignmentWithDifferentAlloc) { - auto it = t1.insert(0).first; - Table u(0, a2); - u = std::move(t1); - it = u.find(0); - EXPECT_EQ(a2, u.get_allocator()); - EXPECT_EQ(1, a1.num_allocs()); - EXPECT_EQ(1, a2.num_allocs()); - EXPECT_EQ(1, it->num_moves()); - EXPECT_EQ(0, it->num_copies()); -} - -TEST_F(PropagateOnAll, Swap) { - auto it = t1.insert(0).first; - Table u(0, a2); - u.swap(t1); - EXPECT_EQ(a1, u.get_allocator()); - EXPECT_EQ(a2, t1.get_allocator()); - EXPECT_EQ(1, a1.num_allocs()); - EXPECT_EQ(0, a2.num_allocs()); - EXPECT_EQ(0, it->num_moves()); - EXPECT_EQ(0, it->num_copies()); -} - -// This allocator is similar to std::pmr::polymorphic_allocator. -// Note the disabled assignment. -template -class PAlloc { - template - friend class PAlloc; - - public: - // types - using value_type = T; - - // traits - using propagate_on_container_swap = std::false_type; - - PAlloc() noexcept = default; - explicit PAlloc(size_t id) noexcept : id_(id) {} - PAlloc(const PAlloc&) noexcept = default; - PAlloc& operator=(const PAlloc&) noexcept = delete; - - template - PAlloc(const PAlloc& that) noexcept : id_(that.id_) {} // NOLINT - - template - struct rebind { - using other = PAlloc; - }; - - constexpr PAlloc select_on_container_copy_construction() const { return {}; } - - // public member functions - T* allocate(size_t) { return new T; } - void deallocate(T* p, size_t) { delete p; } - - friend bool operator==(const PAlloc& a, const PAlloc& b) { - return a.id_ == b.id_; - } - friend bool operator!=(const PAlloc& a, const PAlloc& b) { return !(a == b); } - - private: - size_t id_ = std::numeric_limits::max(); -}; - -// This doesn't compile with GCC 5.4 and 5.5 due to a bug in noexcept handing. -#if !defined(__GNUC__) || __GNUC__ != 5 || (__GNUC_MINOR__ != 4 && \ - __GNUC_MINOR__ != 5) -TEST(NoPropagateOn, Swap) { - using PA = PAlloc; - using Table = raw_hash_set, PA>; - - Table t1(PA{1}), t2(PA{2}); - swap(t1, t2); - EXPECT_EQ(t1.get_allocator(), PA(1)); - EXPECT_EQ(t2.get_allocator(), PA(2)); -} -#endif - -TEST(NoPropagateOn, CopyConstruct) { - using PA = PAlloc; - using Table = raw_hash_set, PA>; - - Table t1(PA{1}), t2(t1); - EXPECT_EQ(t1.get_allocator(), PA(1)); - EXPECT_EQ(t2.get_allocator(), PA()); -} - -TEST(NoPropagateOn, Assignment) { - using PA = PAlloc; - using Table = raw_hash_set, PA>; - - Table t1(PA{1}), t2(PA{2}); - t1 = t2; - EXPECT_EQ(t1.get_allocator(), PA(1)); - EXPECT_EQ(t2.get_allocator(), PA(2)); -} - -} // namespace -} // namespace container_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/src/third_party/abseil-cpp/absl/container/internal/raw_hash_set_benchmark.cc b/src/third_party/abseil-cpp/absl/container/internal/raw_hash_set_benchmark.cc deleted file mode 100644 index f77f2a7b52..0000000000 --- a/src/third_party/abseil-cpp/absl/container/internal/raw_hash_set_benchmark.cc +++ /dev/null @@ -1,544 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include -#include -#include -#include -#include -#include -#include - -#include "absl/base/internal/raw_logging.h" -#include "absl/container/internal/hash_function_defaults.h" -#include "absl/container/internal/raw_hash_set.h" -#include "absl/strings/str_format.h" -#include "benchmark/benchmark.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace container_internal { - -struct RawHashSetTestOnlyAccess { - template - static auto GetSlots(const C& c) -> decltype(c.slots_) { - return c.slots_; - } -}; - -namespace { - -struct IntPolicy { - using slot_type = int64_t; - using key_type = int64_t; - using init_type = int64_t; - - static void construct(void*, int64_t* slot, int64_t v) { *slot = v; } - static void destroy(void*, int64_t*) {} - static void transfer(void*, int64_t* new_slot, int64_t* old_slot) { - *new_slot = *old_slot; - } - - static int64_t& element(slot_type* slot) { return *slot; } - - template - static auto apply(F&& f, int64_t x) -> decltype(std::forward(f)(x, x)) { - return std::forward(f)(x, x); - } -}; - -class StringPolicy { - template ::value>::type> - decltype(std::declval()( - std::declval(), std::piecewise_construct, - std::declval>(), - std::declval())) static apply_impl(F&& f, - std::pair, V> p) { - const absl::string_view& key = std::get<0>(p.first); - return std::forward(f)(key, std::piecewise_construct, std::move(p.first), - std::move(p.second)); - } - - public: - struct slot_type { - struct ctor {}; - - template - slot_type(ctor, Ts&&... ts) : pair(std::forward(ts)...) {} - - std::pair pair; - }; - - using key_type = std::string; - using init_type = std::pair; - - template - static void construct(allocator_type* alloc, slot_type* slot, Args... args) { - std::allocator_traits::construct( - *alloc, slot, typename slot_type::ctor(), std::forward(args)...); - } - - template - static void destroy(allocator_type* alloc, slot_type* slot) { - std::allocator_traits::destroy(*alloc, slot); - } - - template - static void transfer(allocator_type* alloc, slot_type* new_slot, - slot_type* old_slot) { - construct(alloc, new_slot, std::move(old_slot->pair)); - destroy(alloc, old_slot); - } - - static std::pair& element(slot_type* slot) { - return slot->pair; - } - - template - static auto apply(F&& f, Args&&... args) - -> decltype(apply_impl(std::forward(f), - PairArgs(std::forward(args)...))) { - return apply_impl(std::forward(f), - PairArgs(std::forward(args)...)); - } -}; - -struct StringHash : container_internal::hash_default_hash { - using is_transparent = void; -}; -struct StringEq : std::equal_to { - using is_transparent = void; -}; - -struct StringTable - : raw_hash_set> { - using Base = typename StringTable::raw_hash_set; - StringTable() {} - using Base::Base; -}; - -struct IntTable - : raw_hash_set, - std::equal_to, std::allocator> { - using Base = typename IntTable::raw_hash_set; - IntTable() {} - using Base::Base; -}; - -struct string_generator { - template - std::string operator()(RNG& rng) const { - std::string res; - res.resize(12); - std::uniform_int_distribution printable_ascii(0x20, 0x7E); - std::generate(res.begin(), res.end(), [&] { return printable_ascii(rng); }); - return res; - } - - size_t size; -}; - -// Model a cache in steady state. -// -// On a table of size N, keep deleting the LRU entry and add a random one. -void BM_CacheInSteadyState(benchmark::State& state) { - std::random_device rd; - std::mt19937 rng(rd()); - string_generator gen{12}; - StringTable t; - std::deque keys; - while (t.size() < state.range(0)) { - auto x = t.emplace(gen(rng), gen(rng)); - if (x.second) keys.push_back(x.first->first); - } - ABSL_RAW_CHECK(state.range(0) >= 10, ""); - while (state.KeepRunning()) { - // Some cache hits. - std::deque::const_iterator it; - for (int i = 0; i != 90; ++i) { - if (i % 10 == 0) it = keys.end(); - ::benchmark::DoNotOptimize(t.find(*--it)); - } - // Some cache misses. - for (int i = 0; i != 10; ++i) ::benchmark::DoNotOptimize(t.find(gen(rng))); - ABSL_RAW_CHECK(t.erase(keys.front()), keys.front().c_str()); - keys.pop_front(); - while (true) { - auto x = t.emplace(gen(rng), gen(rng)); - if (x.second) { - keys.push_back(x.first->first); - break; - } - } - } - state.SetItemsProcessed(state.iterations()); - state.SetLabel(absl::StrFormat("load_factor=%.2f", t.load_factor())); -} - -template -void CacheInSteadyStateArgs(Benchmark* bm) { - // The default. - const float max_load_factor = 0.875; - // When the cache is at the steady state, the probe sequence will equal - // capacity if there is no reclamation of deleted slots. Pick a number large - // enough to make the benchmark slow for that case. - const size_t capacity = 1 << 10; - - // Check N data points to cover load factors in [0.4, 0.8). - const size_t kNumPoints = 10; - for (size_t i = 0; i != kNumPoints; ++i) - bm->Arg(std::ceil( - capacity * (max_load_factor + i * max_load_factor / kNumPoints) / 2)); -} -BENCHMARK(BM_CacheInSteadyState)->Apply(CacheInSteadyStateArgs); - -void BM_EndComparison(benchmark::State& state) { - StringTable t = {{"a", "a"}, {"b", "b"}}; - auto it = t.begin(); - for (auto i : state) { - benchmark::DoNotOptimize(t); - benchmark::DoNotOptimize(it); - benchmark::DoNotOptimize(it != t.end()); - } -} -BENCHMARK(BM_EndComparison); - -void BM_Iteration(benchmark::State& state) { - std::random_device rd; - std::mt19937 rng(rd()); - string_generator gen{12}; - StringTable t; - - size_t capacity = state.range(0); - size_t size = state.range(1); - t.reserve(capacity); - - while (t.size() < size) { - t.emplace(gen(rng), gen(rng)); - } - - for (auto i : state) { - benchmark::DoNotOptimize(t); - for (auto it = t.begin(); it != t.end(); ++it) { - benchmark::DoNotOptimize(*it); - } - } -} - -BENCHMARK(BM_Iteration) - ->ArgPair(1, 1) - ->ArgPair(2, 2) - ->ArgPair(4, 4) - ->ArgPair(7, 7) - ->ArgPair(10, 10) - ->ArgPair(15, 15) - ->ArgPair(16, 16) - ->ArgPair(54, 54) - ->ArgPair(100, 100) - ->ArgPair(400, 400) - // empty - ->ArgPair(0, 0) - ->ArgPair(10, 0) - ->ArgPair(100, 0) - ->ArgPair(1000, 0) - ->ArgPair(10000, 0) - // sparse - ->ArgPair(100, 1) - ->ArgPair(1000, 10); - -void BM_CopyCtorSparseInt(benchmark::State& state) { - std::random_device rd; - std::mt19937 rng(rd()); - IntTable t; - std::uniform_int_distribution dist(0, ~uint64_t{}); - - size_t size = state.range(0); - t.reserve(size * 10); - while (t.size() < size) { - t.emplace(dist(rng)); - } - - for (auto i : state) { - IntTable t2 = t; - benchmark::DoNotOptimize(t2); - } -} -BENCHMARK(BM_CopyCtorSparseInt)->Range(128, 4096); - -void BM_CopyCtorInt(benchmark::State& state) { - std::random_device rd; - std::mt19937 rng(rd()); - IntTable t; - std::uniform_int_distribution dist(0, ~uint64_t{}); - - size_t size = state.range(0); - while (t.size() < size) { - t.emplace(dist(rng)); - } - - for (auto i : state) { - IntTable t2 = t; - benchmark::DoNotOptimize(t2); - } -} -BENCHMARK(BM_CopyCtorInt)->Range(128, 4096); - -void BM_CopyCtorString(benchmark::State& state) { - std::random_device rd; - std::mt19937 rng(rd()); - StringTable t; - std::uniform_int_distribution dist(0, ~uint64_t{}); - - size_t size = state.range(0); - while (t.size() < size) { - t.emplace(std::to_string(dist(rng)), std::to_string(dist(rng))); - } - - for (auto i : state) { - StringTable t2 = t; - benchmark::DoNotOptimize(t2); - } -} -BENCHMARK(BM_CopyCtorString)->Range(128, 4096); - -void BM_CopyAssign(benchmark::State& state) { - std::random_device rd; - std::mt19937 rng(rd()); - IntTable t; - std::uniform_int_distribution dist(0, ~uint64_t{}); - while (t.size() < state.range(0)) { - t.emplace(dist(rng)); - } - - IntTable t2; - for (auto _ : state) { - t2 = t; - benchmark::DoNotOptimize(t2); - } -} -BENCHMARK(BM_CopyAssign)->Range(128, 4096); - -void BM_RangeCtor(benchmark::State& state) { - std::random_device rd; - std::mt19937 rng(rd()); - std::uniform_int_distribution dist(0, ~uint64_t{}); - std::vector values; - const size_t desired_size = state.range(0); - while (values.size() < desired_size) { - values.emplace_back(dist(rng)); - } - - for (auto unused : state) { - IntTable t{values.begin(), values.end()}; - benchmark::DoNotOptimize(t); - } -} -BENCHMARK(BM_RangeCtor)->Range(128, 65536); - -void BM_NoOpReserveIntTable(benchmark::State& state) { - IntTable t; - t.reserve(100000); - for (auto _ : state) { - benchmark::DoNotOptimize(t); - t.reserve(100000); - } -} -BENCHMARK(BM_NoOpReserveIntTable); - -void BM_NoOpReserveStringTable(benchmark::State& state) { - StringTable t; - t.reserve(100000); - for (auto _ : state) { - benchmark::DoNotOptimize(t); - t.reserve(100000); - } -} -BENCHMARK(BM_NoOpReserveStringTable); - -void BM_ReserveIntTable(benchmark::State& state) { - int reserve_size = state.range(0); - for (auto _ : state) { - state.PauseTiming(); - IntTable t; - state.ResumeTiming(); - benchmark::DoNotOptimize(t); - t.reserve(reserve_size); - } -} -BENCHMARK(BM_ReserveIntTable)->Range(128, 4096); - -void BM_ReserveStringTable(benchmark::State& state) { - int reserve_size = state.range(0); - for (auto _ : state) { - state.PauseTiming(); - StringTable t; - state.ResumeTiming(); - benchmark::DoNotOptimize(t); - t.reserve(reserve_size); - } -} -BENCHMARK(BM_ReserveStringTable)->Range(128, 4096); - -// Like std::iota, except that ctrl_t doesn't support operator++. -template -void Iota(CtrlIter begin, CtrlIter end, int value) { - for (; begin != end; ++begin, ++value) { - *begin = static_cast(value); - } -} - -void BM_Group_Match(benchmark::State& state) { - std::array group; - Iota(group.begin(), group.end(), -4); - Group g{group.data()}; - h2_t h = 1; - for (auto _ : state) { - ::benchmark::DoNotOptimize(h); - ::benchmark::DoNotOptimize(g); - ::benchmark::DoNotOptimize(g.Match(h)); - } -} -BENCHMARK(BM_Group_Match); - -void BM_Group_MaskEmpty(benchmark::State& state) { - std::array group; - Iota(group.begin(), group.end(), -4); - Group g{group.data()}; - for (auto _ : state) { - ::benchmark::DoNotOptimize(g); - ::benchmark::DoNotOptimize(g.MaskEmpty()); - } -} -BENCHMARK(BM_Group_MaskEmpty); - -void BM_Group_MaskEmptyOrDeleted(benchmark::State& state) { - std::array group; - Iota(group.begin(), group.end(), -4); - Group g{group.data()}; - for (auto _ : state) { - ::benchmark::DoNotOptimize(g); - ::benchmark::DoNotOptimize(g.MaskEmptyOrDeleted()); - } -} -BENCHMARK(BM_Group_MaskEmptyOrDeleted); - -void BM_Group_CountLeadingEmptyOrDeleted(benchmark::State& state) { - std::array group; - Iota(group.begin(), group.end(), -2); - Group g{group.data()}; - for (auto _ : state) { - ::benchmark::DoNotOptimize(g); - ::benchmark::DoNotOptimize(g.CountLeadingEmptyOrDeleted()); - } -} -BENCHMARK(BM_Group_CountLeadingEmptyOrDeleted); - -void BM_Group_MatchFirstEmptyOrDeleted(benchmark::State& state) { - std::array group; - Iota(group.begin(), group.end(), -2); - Group g{group.data()}; - for (auto _ : state) { - ::benchmark::DoNotOptimize(g); - ::benchmark::DoNotOptimize(g.MaskEmptyOrDeleted().LowestBitSet()); - } -} -BENCHMARK(BM_Group_MatchFirstEmptyOrDeleted); - -void BM_DropDeletes(benchmark::State& state) { - constexpr size_t capacity = (1 << 20) - 1; - std::vector ctrl(capacity + 1 + Group::kWidth); - ctrl[capacity] = ctrl_t::kSentinel; - std::vector pattern = {ctrl_t::kEmpty, static_cast(2), - ctrl_t::kDeleted, static_cast(2), - ctrl_t::kEmpty, static_cast(1), - ctrl_t::kDeleted}; - for (size_t i = 0; i != capacity; ++i) { - ctrl[i] = pattern[i % pattern.size()]; - } - while (state.KeepRunning()) { - state.PauseTiming(); - std::vector ctrl_copy = ctrl; - state.ResumeTiming(); - ConvertDeletedToEmptyAndFullToDeleted(ctrl_copy.data(), capacity); - ::benchmark::DoNotOptimize(ctrl_copy[capacity]); - } -} -BENCHMARK(BM_DropDeletes); - -void BM_Resize(benchmark::State& state) { - // For now just measure a small cheap hash table since we - // are mostly interested in the overhead of type-erasure - // in resize(). - constexpr int kElements = 64; - const int kCapacity = kElements * 2; - - IntTable table; - for (int i = 0; i < kElements; i++) { - table.insert(i); - } - for (auto unused : state) { - table.rehash(0); - table.rehash(kCapacity); - } -} -BENCHMARK(BM_Resize); - -} // namespace -} // namespace container_internal -ABSL_NAMESPACE_END -} // namespace absl - -// These methods are here to make it easy to examine the assembly for targeted -// parts of the API. -auto CodegenAbslRawHashSetInt64Find(absl::container_internal::IntTable* table, - int64_t key) -> decltype(table->find(key)) { - return table->find(key); -} - -bool CodegenAbslRawHashSetInt64FindNeEnd( - absl::container_internal::IntTable* table, int64_t key) { - return table->find(key) != table->end(); -} - -// This is useful because the find isn't inlined but the iterator comparison is. -bool CodegenAbslRawHashSetStringFindNeEnd( - absl::container_internal::StringTable* table, const std::string& key) { - return table->find(key) != table->end(); -} - -auto CodegenAbslRawHashSetInt64Insert(absl::container_internal::IntTable* table, - int64_t key) - -> decltype(table->insert(key)) { - return table->insert(key); -} - -bool CodegenAbslRawHashSetInt64Contains( - absl::container_internal::IntTable* table, int64_t key) { - return table->contains(key); -} - -void CodegenAbslRawHashSetInt64Iterate( - absl::container_internal::IntTable* table) { - for (auto x : *table) benchmark::DoNotOptimize(x); -} - -int odr = - (::benchmark::DoNotOptimize(std::make_tuple( - &CodegenAbslRawHashSetInt64Find, &CodegenAbslRawHashSetInt64FindNeEnd, - &CodegenAbslRawHashSetStringFindNeEnd, - &CodegenAbslRawHashSetInt64Insert, &CodegenAbslRawHashSetInt64Contains, - &CodegenAbslRawHashSetInt64Iterate)), - 1); diff --git a/src/third_party/abseil-cpp/absl/container/internal/raw_hash_set_probe_benchmark.cc b/src/third_party/abseil-cpp/absl/container/internal/raw_hash_set_probe_benchmark.cc deleted file mode 100644 index 7169a2e206..0000000000 --- a/src/third_party/abseil-cpp/absl/container/internal/raw_hash_set_probe_benchmark.cc +++ /dev/null @@ -1,590 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// Generates probe length statistics for many combinations of key types and key -// distributions, all using the default hash function for swisstable. - -#include -#include // NOLINT -#include - -#include "absl/container/flat_hash_map.h" -#include "absl/container/internal/hash_function_defaults.h" -#include "absl/container/internal/hashtable_debug.h" -#include "absl/container/internal/raw_hash_set.h" -#include "absl/random/distributions.h" -#include "absl/random/random.h" -#include "absl/strings/str_cat.h" -#include "absl/strings/str_format.h" -#include "absl/strings/string_view.h" -#include "absl/strings/strip.h" - -namespace { - -enum class OutputStyle { kRegular, kBenchmark }; - -// The --benchmark command line flag. -// This is populated from main(). -// When run in "benchmark" mode, we have different output. This allows -// A/B comparisons with tools like `benchy`. -absl::string_view benchmarks; - -OutputStyle output() { - return !benchmarks.empty() ? OutputStyle::kBenchmark : OutputStyle::kRegular; -} - -template -struct Policy { - using slot_type = T; - using key_type = T; - using init_type = T; - - template - static void construct(allocator_type* alloc, slot_type* slot, - const Arg& arg) { - std::allocator_traits::construct(*alloc, slot, arg); - } - - template - static void destroy(allocator_type* alloc, slot_type* slot) { - std::allocator_traits::destroy(*alloc, slot); - } - - static slot_type& element(slot_type* slot) { return *slot; } - - template - static auto apply(F&& f, const slot_type& arg) - -> decltype(std::forward(f)(arg, arg)) { - return std::forward(f)(arg, arg); - } -}; - -absl::BitGen& GlobalBitGen() { - static auto* value = new absl::BitGen; - return *value; -} - -// Keeps a pool of allocations and randomly gives one out. -// This introduces more randomization to the addresses given to swisstable and -// should help smooth out this factor from probe length calculation. -template -class RandomizedAllocator { - public: - using value_type = T; - - RandomizedAllocator() = default; - template - RandomizedAllocator(RandomizedAllocator) {} // NOLINT - - static T* allocate(size_t n) { - auto& pointers = GetPointers(n); - // Fill the pool - while (pointers.size() < kRandomPool) { - pointers.push_back(std::allocator{}.allocate(n)); - } - - // Choose a random one. - size_t i = absl::Uniform(GlobalBitGen(), 0, pointers.size()); - T* result = pointers[i]; - pointers[i] = pointers.back(); - pointers.pop_back(); - return result; - } - - static void deallocate(T* p, size_t n) { - // Just put it back on the pool. No need to release the memory. - GetPointers(n).push_back(p); - } - - private: - // We keep at least kRandomPool allocations for each size. - static constexpr size_t kRandomPool = 20; - - static std::vector& GetPointers(size_t n) { - static auto* m = new absl::flat_hash_map>(); - return (*m)[n]; - } -}; - -template -struct DefaultHash { - using type = absl::container_internal::hash_default_hash; -}; - -template -using DefaultHashT = typename DefaultHash::type; - -template -struct Table : absl::container_internal::raw_hash_set< - Policy, DefaultHashT, - absl::container_internal::hash_default_eq, - RandomizedAllocator> {}; - -struct LoadSizes { - size_t min_load; - size_t max_load; -}; - -LoadSizes GetMinMaxLoadSizes() { - static const auto sizes = [] { - Table t; - - // First, fill enough to have a good distribution. - constexpr size_t kMinSize = 10000; - while (t.size() < kMinSize) t.insert(t.size()); - - const auto reach_min_load_factor = [&] { - const double lf = t.load_factor(); - while (lf <= t.load_factor()) t.insert(t.size()); - }; - - // Then, insert until we reach min load factor. - reach_min_load_factor(); - const size_t min_load_size = t.size(); - - // Keep going until we hit min load factor again, then go back one. - t.insert(t.size()); - reach_min_load_factor(); - - return LoadSizes{min_load_size, t.size() - 1}; - }(); - return sizes; -} - -struct Ratios { - double min_load; - double avg_load; - double max_load; -}; - -// See absl/container/internal/hashtable_debug.h for details on -// probe length calculation. -template -Ratios CollectMeanProbeLengths() { - const auto min_max_sizes = GetMinMaxLoadSizes(); - - ElemFn elem; - using Key = decltype(elem()); - Table t; - - Ratios result; - while (t.size() < min_max_sizes.min_load) t.insert(elem()); - result.min_load = - absl::container_internal::GetHashtableDebugProbeSummary(t).mean; - - while (t.size() < (min_max_sizes.min_load + min_max_sizes.max_load) / 2) - t.insert(elem()); - result.avg_load = - absl::container_internal::GetHashtableDebugProbeSummary(t).mean; - - while (t.size() < min_max_sizes.max_load) t.insert(elem()); - result.max_load = - absl::container_internal::GetHashtableDebugProbeSummary(t).mean; - - return result; -} - -template -uintptr_t PointerForAlignment() { - alignas(Align) static constexpr uintptr_t kInitPointer = 0; - return reinterpret_cast(&kInitPointer); -} - -// This incomplete type is used for testing hash of pointers of different -// alignments. -// NOTE: We are generating invalid pointer values on the fly with -// reinterpret_cast. There are not "safely derived" pointers so using them is -// technically UB. It is unlikely to be a problem, though. -template -struct Ptr; - -template -Ptr* MakePtr(uintptr_t v) { - if (sizeof(v) == 8) { - constexpr int kCopyBits = 16; - // Ensure high bits are all the same. - v = static_cast(static_cast(v << kCopyBits) >> - kCopyBits); - } - return reinterpret_cast*>(v); -} - -struct IntIdentity { - uint64_t i; - friend bool operator==(IntIdentity a, IntIdentity b) { return a.i == b.i; } - IntIdentity operator++(int) { return IntIdentity{i++}; } -}; - -template -struct PtrIdentity { - explicit PtrIdentity(uintptr_t val = PointerForAlignment()) : i(val) {} - uintptr_t i; - friend bool operator==(PtrIdentity a, PtrIdentity b) { return a.i == b.i; } - PtrIdentity operator++(int) { - PtrIdentity p(i); - i += Align; - return p; - } -}; - -constexpr char kStringFormat[] = "/path/to/file/name-%07d-of-9999999.txt"; - -template -struct String { - std::string value; - static std::string Make(uint32_t v) { - return {small ? absl::StrCat(v) : absl::StrFormat(kStringFormat, v)}; - } -}; - -template <> -struct DefaultHash { - struct type { - size_t operator()(IntIdentity t) const { return t.i; } - }; -}; - -template -struct DefaultHash> { - struct type { - size_t operator()(PtrIdentity t) const { return t.i; } - }; -}; - -template -struct Sequential { - T operator()() const { return current++; } - mutable T current{}; -}; - -template -struct Sequential*> { - Ptr* operator()() const { - auto* result = MakePtr(current); - current += Align; - return result; - } - mutable uintptr_t current = PointerForAlignment(); -}; - - -template -struct Sequential> { - std::string operator()() const { return String::Make(current++); } - mutable uint32_t current = 0; -}; - -template -struct Sequential> { - mutable Sequential tseq; - mutable Sequential useq; - - using RealT = decltype(tseq()); - using RealU = decltype(useq()); - - mutable std::vector ts; - mutable std::vector us; - mutable size_t ti = 0, ui = 0; - - std::pair operator()() const { - std::pair value{get_t(), get_u()}; - if (ti == 0) { - ti = ui + 1; - ui = 0; - } else { - --ti; - ++ui; - } - return value; - } - - RealT get_t() const { - while (ti >= ts.size()) ts.push_back(tseq()); - return ts[ti]; - } - - RealU get_u() const { - while (ui >= us.size()) us.push_back(useq()); - return us[ui]; - } -}; - -template -struct AlmostSequential { - mutable Sequential current; - - auto operator()() const -> decltype(current()) { - while (absl::Uniform(GlobalBitGen(), 0.0, 1.0) <= percent_skip / 100.) - current(); - return current(); - } -}; - -struct Uniform { - template - T operator()(T) const { - return absl::Uniform(absl::IntervalClosed, GlobalBitGen(), T{0}, ~T{0}); - } -}; - -struct Gaussian { - template - T operator()(T) const { - double d; - do { - d = absl::Gaussian(GlobalBitGen(), 1e6, 1e4); - } while (d <= 0 || d > std::numeric_limits::max() / 2); - return static_cast(d); - } -}; - -struct Zipf { - template - T operator()(T) const { - return absl::Zipf(GlobalBitGen(), std::numeric_limits::max(), 1.6); - } -}; - -template -struct Random { - T operator()() const { return Dist{}(T{}); } -}; - -template -struct Random*, Dist> { - Ptr* operator()() const { - return MakePtr(Random{}() * Align); - } -}; - -template -struct Random { - IntIdentity operator()() const { - return IntIdentity{Random{}()}; - } -}; - -template -struct Random, Dist> { - PtrIdentity operator()() const { - return PtrIdentity{Random{}() * Align}; - } -}; - -template -struct Random, Dist> { - std::string operator()() const { - return String::Make(Random{}()); - } -}; - -template -struct Random, Dist> { - auto operator()() const - -> decltype(std::make_pair(Random{}(), Random{}())) { - return std::make_pair(Random{}(), Random{}()); - } -}; - -template -std::string Name(); - -std::string Name(uint32_t*) { return "u32"; } -std::string Name(uint64_t*) { return "u64"; } -std::string Name(IntIdentity*) { return "IntIdentity"; } - -template -std::string Name(Ptr**) { - return absl::StrCat("Ptr", Align); -} - -template -std::string Name(PtrIdentity*) { - return absl::StrCat("PtrIdentity", Align); -} - -template -std::string Name(String*) { - return small ? "StrS" : "StrL"; -} - -template -std::string Name(std::pair*) { - if (output() == OutputStyle::kBenchmark) - return absl::StrCat("P_", Name(), "_", Name()); - return absl::StrCat("P<", Name(), ",", Name(), ">"); -} - -template -std::string Name(Sequential*) { - return "Sequential"; -} - -template -std::string Name(AlmostSequential*) { - return absl::StrCat("AlmostSeq_", P); -} - -template -std::string Name(Random*) { - return "UnifRand"; -} - -template -std::string Name(Random*) { - return "GausRand"; -} - -template -std::string Name(Random*) { - return "ZipfRand"; -} - -template -std::string Name() { - return Name(static_cast(nullptr)); -} - -constexpr int kNameWidth = 15; -constexpr int kDistWidth = 16; - -bool CanRunBenchmark(absl::string_view name) { - static std::regex* const filter = []() -> std::regex* { - return benchmarks.empty() || benchmarks == "all" - ? nullptr - : new std::regex(std::string(benchmarks)); - }(); - return filter == nullptr || std::regex_search(std::string(name), *filter); -} - -struct Result { - std::string name; - std::string dist_name; - Ratios ratios; -}; - -template -void RunForTypeAndDistribution(std::vector& results) { - std::string name = absl::StrCat(Name(), "/", Name()); - // We have to check against all three names (min/avg/max) before we run it. - // If any of them is enabled, we run it. - if (!CanRunBenchmark(absl::StrCat(name, "/min")) && - !CanRunBenchmark(absl::StrCat(name, "/avg")) && - !CanRunBenchmark(absl::StrCat(name, "/max"))) { - return; - } - results.push_back({Name(), Name(), CollectMeanProbeLengths()}); -} - -template -void RunForType(std::vector& results) { - RunForTypeAndDistribution>(results); - RunForTypeAndDistribution>(results); - RunForTypeAndDistribution>(results); - RunForTypeAndDistribution>(results); -#ifdef NDEBUG - // Disable these in non-opt mode because they take too long. - RunForTypeAndDistribution>(results); - RunForTypeAndDistribution>(results); -#endif // NDEBUG -} - -} // namespace - -int main(int argc, char** argv) { - // Parse the benchmark flags. Ignore all of them except the regex pattern. - for (int i = 1; i < argc; ++i) { - absl::string_view arg = argv[i]; - const auto next = [&] { return argv[std::min(i + 1, argc - 1)]; }; - - if (absl::ConsumePrefix(&arg, "--benchmark_filter")) { - if (arg == "") { - // --benchmark_filter X - benchmarks = next(); - } else if (absl::ConsumePrefix(&arg, "=")) { - // --benchmark_filter=X - benchmarks = arg; - } - } - - // Any --benchmark flag turns on the mode. - if (absl::ConsumePrefix(&arg, "--benchmark")) { - if (benchmarks.empty()) benchmarks="all"; - } - } - - std::vector results; - RunForType(results); - RunForType(results); - RunForType*>(results); - RunForType*>(results); - RunForType*>(results); - RunForType*>(results); - RunForType>(results); - RunForType>(results); - RunForType>(results); - RunForType>(results); - RunForType>(results); - RunForType>(results); - RunForType>(results); - RunForType>>(results); - RunForType, uint64_t>>(results); - RunForType>>(results); - RunForType, uint64_t>>(results); - - switch (output()) { - case OutputStyle::kRegular: - absl::PrintF("%-*s%-*s Min Avg Max\n%s\n", kNameWidth, - "Type", kDistWidth, "Distribution", - std::string(kNameWidth + kDistWidth + 10 * 3, '-')); - for (const auto& result : results) { - absl::PrintF("%-*s%-*s %8.4f %8.4f %8.4f\n", kNameWidth, result.name, - kDistWidth, result.dist_name, result.ratios.min_load, - result.ratios.avg_load, result.ratios.max_load); - } - break; - case OutputStyle::kBenchmark: { - absl::PrintF("{\n"); - absl::PrintF(" \"benchmarks\": [\n"); - absl::string_view comma; - for (const auto& result : results) { - auto print = [&](absl::string_view stat, double Ratios::*val) { - std::string name = - absl::StrCat(result.name, "/", result.dist_name, "/", stat); - // Check the regex again. We might had have enabled only one of the - // stats for the benchmark. - if (!CanRunBenchmark(name)) return; - absl::PrintF(" %s{\n", comma); - absl::PrintF(" \"cpu_time\": %f,\n", 1e9 * result.ratios.*val); - absl::PrintF(" \"real_time\": %f,\n", 1e9 * result.ratios.*val); - absl::PrintF(" \"iterations\": 1,\n"); - absl::PrintF(" \"name\": \"%s\",\n", name); - absl::PrintF(" \"time_unit\": \"ns\"\n"); - absl::PrintF(" }\n"); - comma = ","; - }; - print("min", &Ratios::min_load); - print("avg", &Ratios::avg_load); - print("max", &Ratios::max_load); - } - absl::PrintF(" ],\n"); - absl::PrintF(" \"context\": {\n"); - absl::PrintF(" }\n"); - absl::PrintF("}\n"); - break; - } - } - - return 0; -} diff --git a/src/third_party/abseil-cpp/absl/container/internal/raw_hash_set_test.cc b/src/third_party/abseil-cpp/absl/container/internal/raw_hash_set_test.cc deleted file mode 100644 index 3d3b089c55..0000000000 --- a/src/third_party/abseil-cpp/absl/container/internal/raw_hash_set_test.cc +++ /dev/null @@ -1,2324 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/container/internal/raw_hash_set.h" - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "gmock/gmock.h" -#include "gtest/gtest.h" -#include "absl/base/attributes.h" -#include "absl/base/config.h" -#include "absl/base/internal/cycleclock.h" -#include "absl/base/internal/prefetch.h" -#include "absl/base/internal/raw_logging.h" -#include "absl/container/flat_hash_map.h" -#include "absl/container/flat_hash_set.h" -#include "absl/container/internal/container_memory.h" -#include "absl/container/internal/hash_function_defaults.h" -#include "absl/container/internal/hash_policy_testing.h" -#include "absl/container/internal/hashtable_debug.h" -#include "absl/log/log.h" -#include "absl/strings/string_view.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace container_internal { - -struct RawHashSetTestOnlyAccess { - template - static auto GetSlots(const C& c) -> decltype(c.slot_array()) { - return c.slot_array(); - } -}; - -namespace { - -using ::testing::ElementsAre; -using ::testing::Eq; -using ::testing::Ge; -using ::testing::Lt; -using ::testing::Pair; -using ::testing::UnorderedElementsAre; - -// Convenience function to static cast to ctrl_t. -ctrl_t CtrlT(int i) { return static_cast(i); } - -TEST(Util, NormalizeCapacity) { - EXPECT_EQ(1, NormalizeCapacity(0)); - EXPECT_EQ(1, NormalizeCapacity(1)); - EXPECT_EQ(3, NormalizeCapacity(2)); - EXPECT_EQ(3, NormalizeCapacity(3)); - EXPECT_EQ(7, NormalizeCapacity(4)); - EXPECT_EQ(7, NormalizeCapacity(7)); - EXPECT_EQ(15, NormalizeCapacity(8)); - EXPECT_EQ(15, NormalizeCapacity(15)); - EXPECT_EQ(15 * 2 + 1, NormalizeCapacity(15 + 1)); - EXPECT_EQ(15 * 2 + 1, NormalizeCapacity(15 + 2)); -} - -TEST(Util, GrowthAndCapacity) { - // Verify that GrowthToCapacity gives the minimum capacity that has enough - // growth. - for (size_t growth = 0; growth < 10000; ++growth) { - SCOPED_TRACE(growth); - size_t capacity = NormalizeCapacity(GrowthToLowerboundCapacity(growth)); - // The capacity is large enough for `growth`. - EXPECT_THAT(CapacityToGrowth(capacity), Ge(growth)); - // For (capacity+1) < kWidth, growth should equal capacity. - if (capacity + 1 < Group::kWidth) { - EXPECT_THAT(CapacityToGrowth(capacity), Eq(capacity)); - } else { - EXPECT_THAT(CapacityToGrowth(capacity), Lt(capacity)); - } - if (growth != 0 && capacity > 1) { - // There is no smaller capacity that works. - EXPECT_THAT(CapacityToGrowth(capacity / 2), Lt(growth)); - } - } - - for (size_t capacity = Group::kWidth - 1; capacity < 10000; - capacity = 2 * capacity + 1) { - SCOPED_TRACE(capacity); - size_t growth = CapacityToGrowth(capacity); - EXPECT_THAT(growth, Lt(capacity)); - EXPECT_LE(GrowthToLowerboundCapacity(growth), capacity); - EXPECT_EQ(NormalizeCapacity(GrowthToLowerboundCapacity(growth)), capacity); - } -} - -TEST(Util, probe_seq) { - probe_seq<16> seq(0, 127); - auto gen = [&]() { - size_t res = seq.offset(); - seq.next(); - return res; - }; - std::vector offsets(8); - std::generate_n(offsets.begin(), 8, gen); - EXPECT_THAT(offsets, ElementsAre(0, 16, 48, 96, 32, 112, 80, 64)); - seq = probe_seq<16>(128, 127); - std::generate_n(offsets.begin(), 8, gen); - EXPECT_THAT(offsets, ElementsAre(0, 16, 48, 96, 32, 112, 80, 64)); -} - -TEST(BitMask, Smoke) { - EXPECT_FALSE((BitMask(0))); - EXPECT_TRUE((BitMask(5))); - - EXPECT_THAT((BitMask(0)), ElementsAre()); - EXPECT_THAT((BitMask(0x1)), ElementsAre(0)); - EXPECT_THAT((BitMask(0x2)), ElementsAre(1)); - EXPECT_THAT((BitMask(0x3)), ElementsAre(0, 1)); - EXPECT_THAT((BitMask(0x4)), ElementsAre(2)); - EXPECT_THAT((BitMask(0x5)), ElementsAre(0, 2)); - EXPECT_THAT((BitMask(0x55)), ElementsAre(0, 2, 4, 6)); - EXPECT_THAT((BitMask(0xAA)), ElementsAre(1, 3, 5, 7)); -} - -TEST(BitMask, WithShift) { - // See the non-SSE version of Group for details on what this math is for. - uint64_t ctrl = 0x1716151413121110; - uint64_t hash = 0x12; - constexpr uint64_t msbs = 0x8080808080808080ULL; - constexpr uint64_t lsbs = 0x0101010101010101ULL; - auto x = ctrl ^ (lsbs * hash); - uint64_t mask = (x - lsbs) & ~x & msbs; - EXPECT_EQ(0x0000000080800000, mask); - - BitMask b(mask); - EXPECT_EQ(*b, 2); -} - -TEST(BitMask, LeadingTrailing) { - EXPECT_EQ((BitMask(0x00001a40).LeadingZeros()), 3); - EXPECT_EQ((BitMask(0x00001a40).TrailingZeros()), 6); - - EXPECT_EQ((BitMask(0x00000001).LeadingZeros()), 15); - EXPECT_EQ((BitMask(0x00000001).TrailingZeros()), 0); - - EXPECT_EQ((BitMask(0x00008000).LeadingZeros()), 0); - EXPECT_EQ((BitMask(0x00008000).TrailingZeros()), 15); - - EXPECT_EQ((BitMask(0x0000008080808000).LeadingZeros()), 3); - EXPECT_EQ((BitMask(0x0000008080808000).TrailingZeros()), 1); - - EXPECT_EQ((BitMask(0x0000000000000080).LeadingZeros()), 7); - EXPECT_EQ((BitMask(0x0000000000000080).TrailingZeros()), 0); - - EXPECT_EQ((BitMask(0x8000000000000000).LeadingZeros()), 0); - EXPECT_EQ((BitMask(0x8000000000000000).TrailingZeros()), 7); -} - -TEST(Group, EmptyGroup) { - for (h2_t h = 0; h != 128; ++h) EXPECT_FALSE(Group{EmptyGroup()}.Match(h)); -} - -TEST(Group, Match) { - if (Group::kWidth == 16) { - ctrl_t group[] = {ctrl_t::kEmpty, CtrlT(1), ctrl_t::kDeleted, CtrlT(3), - ctrl_t::kEmpty, CtrlT(5), ctrl_t::kSentinel, CtrlT(7), - CtrlT(7), CtrlT(5), CtrlT(3), CtrlT(1), - CtrlT(1), CtrlT(1), CtrlT(1), CtrlT(1)}; - EXPECT_THAT(Group{group}.Match(0), ElementsAre()); - EXPECT_THAT(Group{group}.Match(1), ElementsAre(1, 11, 12, 13, 14, 15)); - EXPECT_THAT(Group{group}.Match(3), ElementsAre(3, 10)); - EXPECT_THAT(Group{group}.Match(5), ElementsAre(5, 9)); - EXPECT_THAT(Group{group}.Match(7), ElementsAre(7, 8)); - } else if (Group::kWidth == 8) { - ctrl_t group[] = {ctrl_t::kEmpty, CtrlT(1), CtrlT(2), - ctrl_t::kDeleted, CtrlT(2), CtrlT(1), - ctrl_t::kSentinel, CtrlT(1)}; - EXPECT_THAT(Group{group}.Match(0), ElementsAre()); - EXPECT_THAT(Group{group}.Match(1), ElementsAre(1, 5, 7)); - EXPECT_THAT(Group{group}.Match(2), ElementsAre(2, 4)); - } else { - FAIL() << "No test coverage for Group::kWidth==" << Group::kWidth; - } -} - -TEST(Group, MaskEmpty) { - if (Group::kWidth == 16) { - ctrl_t group[] = {ctrl_t::kEmpty, CtrlT(1), ctrl_t::kDeleted, CtrlT(3), - ctrl_t::kEmpty, CtrlT(5), ctrl_t::kSentinel, CtrlT(7), - CtrlT(7), CtrlT(5), CtrlT(3), CtrlT(1), - CtrlT(1), CtrlT(1), CtrlT(1), CtrlT(1)}; - EXPECT_THAT(Group{group}.MaskEmpty().LowestBitSet(), 0); - EXPECT_THAT(Group{group}.MaskEmpty().HighestBitSet(), 4); - } else if (Group::kWidth == 8) { - ctrl_t group[] = {ctrl_t::kEmpty, CtrlT(1), CtrlT(2), - ctrl_t::kDeleted, CtrlT(2), CtrlT(1), - ctrl_t::kSentinel, CtrlT(1)}; - EXPECT_THAT(Group{group}.MaskEmpty().LowestBitSet(), 0); - EXPECT_THAT(Group{group}.MaskEmpty().HighestBitSet(), 0); - } else { - FAIL() << "No test coverage for Group::kWidth==" << Group::kWidth; - } -} - -TEST(Group, MaskEmptyOrDeleted) { - if (Group::kWidth == 16) { - ctrl_t group[] = {ctrl_t::kEmpty, CtrlT(1), ctrl_t::kEmpty, CtrlT(3), - ctrl_t::kDeleted, CtrlT(5), ctrl_t::kSentinel, CtrlT(7), - CtrlT(7), CtrlT(5), CtrlT(3), CtrlT(1), - CtrlT(1), CtrlT(1), CtrlT(1), CtrlT(1)}; - EXPECT_THAT(Group{group}.MaskEmptyOrDeleted().LowestBitSet(), 0); - EXPECT_THAT(Group{group}.MaskEmptyOrDeleted().HighestBitSet(), 4); - } else if (Group::kWidth == 8) { - ctrl_t group[] = {ctrl_t::kEmpty, CtrlT(1), CtrlT(2), - ctrl_t::kDeleted, CtrlT(2), CtrlT(1), - ctrl_t::kSentinel, CtrlT(1)}; - EXPECT_THAT(Group{group}.MaskEmptyOrDeleted().LowestBitSet(), 0); - EXPECT_THAT(Group{group}.MaskEmptyOrDeleted().HighestBitSet(), 3); - } else { - FAIL() << "No test coverage for Group::kWidth==" << Group::kWidth; - } -} - -TEST(Batch, DropDeletes) { - constexpr size_t kCapacity = 63; - constexpr size_t kGroupWidth = container_internal::Group::kWidth; - std::vector ctrl(kCapacity + 1 + kGroupWidth); - ctrl[kCapacity] = ctrl_t::kSentinel; - std::vector pattern = { - ctrl_t::kEmpty, CtrlT(2), ctrl_t::kDeleted, CtrlT(2), - ctrl_t::kEmpty, CtrlT(1), ctrl_t::kDeleted}; - for (size_t i = 0; i != kCapacity; ++i) { - ctrl[i] = pattern[i % pattern.size()]; - if (i < kGroupWidth - 1) - ctrl[i + kCapacity + 1] = pattern[i % pattern.size()]; - } - ConvertDeletedToEmptyAndFullToDeleted(ctrl.data(), kCapacity); - ASSERT_EQ(ctrl[kCapacity], ctrl_t::kSentinel); - for (size_t i = 0; i < kCapacity + kGroupWidth; ++i) { - ctrl_t expected = pattern[i % (kCapacity + 1) % pattern.size()]; - if (i == kCapacity) expected = ctrl_t::kSentinel; - if (expected == ctrl_t::kDeleted) expected = ctrl_t::kEmpty; - if (IsFull(expected)) expected = ctrl_t::kDeleted; - EXPECT_EQ(ctrl[i], expected) - << i << " " << static_cast(pattern[i % pattern.size()]); - } -} - -TEST(Group, CountLeadingEmptyOrDeleted) { - const std::vector empty_examples = {ctrl_t::kEmpty, ctrl_t::kDeleted}; - const std::vector full_examples = { - CtrlT(0), CtrlT(1), CtrlT(2), CtrlT(3), - CtrlT(5), CtrlT(9), CtrlT(127), ctrl_t::kSentinel}; - - for (ctrl_t empty : empty_examples) { - std::vector e(Group::kWidth, empty); - EXPECT_EQ(Group::kWidth, Group{e.data()}.CountLeadingEmptyOrDeleted()); - for (ctrl_t full : full_examples) { - for (size_t i = 0; i != Group::kWidth; ++i) { - std::vector f(Group::kWidth, empty); - f[i] = full; - EXPECT_EQ(i, Group{f.data()}.CountLeadingEmptyOrDeleted()); - } - std::vector f(Group::kWidth, empty); - f[Group::kWidth * 2 / 3] = full; - f[Group::kWidth / 2] = full; - EXPECT_EQ( - Group::kWidth / 2, Group{f.data()}.CountLeadingEmptyOrDeleted()); - } - } -} - -template -struct ValuePolicy { - using slot_type = T; - using key_type = T; - using init_type = T; - - template - static void construct(Allocator* alloc, slot_type* slot, Args&&... args) { - absl::allocator_traits::construct(*alloc, slot, - std::forward(args)...); - } - - template - static void destroy(Allocator* alloc, slot_type* slot) { - absl::allocator_traits::destroy(*alloc, slot); - } - - template - static void transfer(Allocator* alloc, slot_type* new_slot, - slot_type* old_slot) { - construct(alloc, new_slot, std::move(*old_slot)); - destroy(alloc, old_slot); - } - - static T& element(slot_type* slot) { return *slot; } - - template - static decltype(absl::container_internal::DecomposeValue( - std::declval(), std::declval()...)) - apply(F&& f, Args&&... args) { - return absl::container_internal::DecomposeValue( - std::forward(f), std::forward(args)...); - } -}; - -using IntPolicy = ValuePolicy; -using Uint8Policy = ValuePolicy; - -class StringPolicy { - template ::value>::type> - decltype(std::declval()( - std::declval(), std::piecewise_construct, - std::declval>(), - std::declval())) static apply_impl(F&& f, - std::pair, V> p) { - const absl::string_view& key = std::get<0>(p.first); - return std::forward(f)(key, std::piecewise_construct, std::move(p.first), - std::move(p.second)); - } - - public: - struct slot_type { - struct ctor {}; - - template - explicit slot_type(ctor, Ts&&... ts) : pair(std::forward(ts)...) {} - - std::pair pair; - }; - - using key_type = std::string; - using init_type = std::pair; - - template - static void construct(allocator_type* alloc, slot_type* slot, Args... args) { - std::allocator_traits::construct( - *alloc, slot, typename slot_type::ctor(), std::forward(args)...); - } - - template - static void destroy(allocator_type* alloc, slot_type* slot) { - std::allocator_traits::destroy(*alloc, slot); - } - - template - static void transfer(allocator_type* alloc, slot_type* new_slot, - slot_type* old_slot) { - construct(alloc, new_slot, std::move(old_slot->pair)); - destroy(alloc, old_slot); - } - - static std::pair& element(slot_type* slot) { - return slot->pair; - } - - template - static auto apply(F&& f, Args&&... args) - -> decltype(apply_impl(std::forward(f), - PairArgs(std::forward(args)...))) { - return apply_impl(std::forward(f), - PairArgs(std::forward(args)...)); - } -}; - -struct StringHash : absl::Hash { - using is_transparent = void; -}; -struct StringEq : std::equal_to { - using is_transparent = void; -}; - -struct StringTable - : raw_hash_set> { - using Base = typename StringTable::raw_hash_set; - StringTable() = default; - using Base::Base; -}; - -struct IntTable - : raw_hash_set, - std::equal_to, std::allocator> { - using Base = typename IntTable::raw_hash_set; - using Base::Base; -}; - -struct Uint8Table - : raw_hash_set, - std::equal_to, std::allocator> { - using Base = typename Uint8Table::raw_hash_set; - using Base::Base; -}; - -template -struct CustomAlloc : std::allocator { - CustomAlloc() = default; - - template - explicit CustomAlloc(const CustomAlloc& /*other*/) {} - - template struct rebind { - using other = CustomAlloc; - }; -}; - -struct CustomAllocIntTable - : raw_hash_set, - std::equal_to, CustomAlloc> { - using Base = typename CustomAllocIntTable::raw_hash_set; - using Base::Base; -}; - -struct BadFastHash { - template - size_t operator()(const T&) const { - return 0; - } -}; - -struct BadTable : raw_hash_set, - std::allocator> { - using Base = typename BadTable::raw_hash_set; - BadTable() = default; - using Base::Base; -}; - -TEST(Table, EmptyFunctorOptimization) { - static_assert(std::is_empty>::value, ""); - static_assert(std::is_empty>::value, ""); - - struct MockTable { - void* infoz; - void* ctrl; - void* slots; - size_t size; - size_t capacity; - size_t growth_left; - }; - struct MockTableInfozDisabled { - void* ctrl; - void* slots; - size_t size; - size_t capacity; - size_t growth_left; - }; - struct StatelessHash { - size_t operator()(absl::string_view) const { return 0; } - }; - struct StatefulHash : StatelessHash { - size_t dummy; - }; - - struct GenerationData { - size_t reserved_growth; - GenerationType* generation; - }; - -// Ignore unreachable-code warning. Compiler thinks one branch of each ternary -// conditional is unreachable. -#if defined(__clang__) -#pragma clang diagnostic push -#pragma clang diagnostic ignored "-Wunreachable-code" -#endif - constexpr size_t mock_size = std::is_empty() - ? sizeof(MockTableInfozDisabled) - : sizeof(MockTable); - constexpr size_t generation_size = - SwisstableGenerationsEnabled() ? sizeof(GenerationData) : 0; -#if defined(__clang__) -#pragma clang diagnostic pop -#endif - - EXPECT_EQ( - mock_size + generation_size, - sizeof( - raw_hash_set, std::allocator>)); - - EXPECT_EQ( - mock_size + sizeof(StatefulHash) + generation_size, - sizeof( - raw_hash_set, std::allocator>)); -} - -TEST(Table, Empty) { - IntTable t; - EXPECT_EQ(0, t.size()); - EXPECT_TRUE(t.empty()); -} - -TEST(Table, LookupEmpty) { - IntTable t; - auto it = t.find(0); - EXPECT_TRUE(it == t.end()); -} - -TEST(Table, Insert1) { - IntTable t; - EXPECT_TRUE(t.find(0) == t.end()); - auto res = t.emplace(0); - EXPECT_TRUE(res.second); - EXPECT_THAT(*res.first, 0); - EXPECT_EQ(1, t.size()); - EXPECT_THAT(*t.find(0), 0); -} - -TEST(Table, Insert2) { - IntTable t; - EXPECT_TRUE(t.find(0) == t.end()); - auto res = t.emplace(0); - EXPECT_TRUE(res.second); - EXPECT_THAT(*res.first, 0); - EXPECT_EQ(1, t.size()); - EXPECT_TRUE(t.find(1) == t.end()); - res = t.emplace(1); - EXPECT_TRUE(res.second); - EXPECT_THAT(*res.first, 1); - EXPECT_EQ(2, t.size()); - EXPECT_THAT(*t.find(0), 0); - EXPECT_THAT(*t.find(1), 1); -} - -TEST(Table, InsertCollision) { - BadTable t; - EXPECT_TRUE(t.find(1) == t.end()); - auto res = t.emplace(1); - EXPECT_TRUE(res.second); - EXPECT_THAT(*res.first, 1); - EXPECT_EQ(1, t.size()); - - EXPECT_TRUE(t.find(2) == t.end()); - res = t.emplace(2); - EXPECT_THAT(*res.first, 2); - EXPECT_TRUE(res.second); - EXPECT_EQ(2, t.size()); - - EXPECT_THAT(*t.find(1), 1); - EXPECT_THAT(*t.find(2), 2); -} - -// Test that we do not add existent element in case we need to search through -// many groups with deleted elements -TEST(Table, InsertCollisionAndFindAfterDelete) { - BadTable t; // all elements go to the same group. - // Have at least 2 groups with Group::kWidth collisions - // plus some extra collisions in the last group. - constexpr size_t kNumInserts = Group::kWidth * 2 + 5; - for (size_t i = 0; i < kNumInserts; ++i) { - auto res = t.emplace(i); - EXPECT_TRUE(res.second); - EXPECT_THAT(*res.first, i); - EXPECT_EQ(i + 1, t.size()); - } - - // Remove elements one by one and check - // that we still can find all other elements. - for (size_t i = 0; i < kNumInserts; ++i) { - EXPECT_EQ(1, t.erase(i)) << i; - for (size_t j = i + 1; j < kNumInserts; ++j) { - EXPECT_THAT(*t.find(j), j); - auto res = t.emplace(j); - EXPECT_FALSE(res.second) << i << " " << j; - EXPECT_THAT(*res.first, j); - EXPECT_EQ(kNumInserts - i - 1, t.size()); - } - } - EXPECT_TRUE(t.empty()); -} - -TEST(Table, InsertWithinCapacity) { - IntTable t; - t.reserve(10); - const size_t original_capacity = t.capacity(); - const auto addr = [&](int i) { - return reinterpret_cast(&*t.find(i)); - }; - // Inserting an element does not change capacity. - t.insert(0); - EXPECT_THAT(t.capacity(), original_capacity); - const uintptr_t original_addr_0 = addr(0); - // Inserting another element does not rehash. - t.insert(1); - EXPECT_THAT(t.capacity(), original_capacity); - EXPECT_THAT(addr(0), original_addr_0); - // Inserting lots of duplicate elements does not rehash. - for (int i = 0; i < 100; ++i) { - t.insert(i % 10); - } - EXPECT_THAT(t.capacity(), original_capacity); - EXPECT_THAT(addr(0), original_addr_0); - // Inserting a range of duplicate elements does not rehash. - std::vector dup_range; - for (int i = 0; i < 100; ++i) { - dup_range.push_back(i % 10); - } - t.insert(dup_range.begin(), dup_range.end()); - EXPECT_THAT(t.capacity(), original_capacity); - EXPECT_THAT(addr(0), original_addr_0); -} - -TEST(Table, LazyEmplace) { - StringTable t; - bool called = false; - auto it = t.lazy_emplace("abc", [&](const StringTable::constructor& f) { - called = true; - f("abc", "ABC"); - }); - EXPECT_TRUE(called); - EXPECT_THAT(*it, Pair("abc", "ABC")); - called = false; - it = t.lazy_emplace("abc", [&](const StringTable::constructor& f) { - called = true; - f("abc", "DEF"); - }); - EXPECT_FALSE(called); - EXPECT_THAT(*it, Pair("abc", "ABC")); -} - -TEST(Table, ContainsEmpty) { - IntTable t; - - EXPECT_FALSE(t.contains(0)); -} - -TEST(Table, Contains1) { - IntTable t; - - EXPECT_TRUE(t.insert(0).second); - EXPECT_TRUE(t.contains(0)); - EXPECT_FALSE(t.contains(1)); - - EXPECT_EQ(1, t.erase(0)); - EXPECT_FALSE(t.contains(0)); -} - -TEST(Table, Contains2) { - IntTable t; - - EXPECT_TRUE(t.insert(0).second); - EXPECT_TRUE(t.contains(0)); - EXPECT_FALSE(t.contains(1)); - - t.clear(); - EXPECT_FALSE(t.contains(0)); -} - -int decompose_constructed; -int decompose_copy_constructed; -int decompose_copy_assigned; -int decompose_move_constructed; -int decompose_move_assigned; -struct DecomposeType { - DecomposeType(int i = 0) : i(i) { // NOLINT - ++decompose_constructed; - } - - explicit DecomposeType(const char* d) : DecomposeType(*d) {} - - DecomposeType(const DecomposeType& other) : i(other.i) { - ++decompose_copy_constructed; - } - DecomposeType& operator=(const DecomposeType& other) { - ++decompose_copy_assigned; - i = other.i; - return *this; - } - DecomposeType(DecomposeType&& other) : i(other.i) { - ++decompose_move_constructed; - } - DecomposeType& operator=(DecomposeType&& other) { - ++decompose_move_assigned; - i = other.i; - return *this; - } - - int i; -}; - -struct DecomposeHash { - using is_transparent = void; - size_t operator()(const DecomposeType& a) const { return a.i; } - size_t operator()(int a) const { return a; } - size_t operator()(const char* a) const { return *a; } -}; - -struct DecomposeEq { - using is_transparent = void; - bool operator()(const DecomposeType& a, const DecomposeType& b) const { - return a.i == b.i; - } - bool operator()(const DecomposeType& a, int b) const { return a.i == b; } - bool operator()(const DecomposeType& a, const char* b) const { - return a.i == *b; - } -}; - -struct DecomposePolicy { - using slot_type = DecomposeType; - using key_type = DecomposeType; - using init_type = DecomposeType; - - template - static void construct(void*, DecomposeType* slot, T&& v) { - ::new (slot) DecomposeType(std::forward(v)); - } - static void destroy(void*, DecomposeType* slot) { slot->~DecomposeType(); } - static DecomposeType& element(slot_type* slot) { return *slot; } - - template - static auto apply(F&& f, const T& x) -> decltype(std::forward(f)(x, x)) { - return std::forward(f)(x, x); - } -}; - -template -void TestDecompose(bool construct_three) { - DecomposeType elem{0}; - const int one = 1; - const char* three_p = "3"; - const auto& three = three_p; - const int elem_vector_count = 256; - std::vector elem_vector(elem_vector_count, DecomposeType{0}); - std::iota(elem_vector.begin(), elem_vector.end(), 0); - - using DecomposeSet = - raw_hash_set>; - DecomposeSet set1; - - decompose_constructed = 0; - int expected_constructed = 0; - EXPECT_EQ(expected_constructed, decompose_constructed); - set1.insert(elem); - EXPECT_EQ(expected_constructed, decompose_constructed); - set1.insert(1); - EXPECT_EQ(++expected_constructed, decompose_constructed); - set1.emplace("3"); - EXPECT_EQ(++expected_constructed, decompose_constructed); - EXPECT_EQ(expected_constructed, decompose_constructed); - - { // insert(T&&) - set1.insert(1); - EXPECT_EQ(expected_constructed, decompose_constructed); - } - - { // insert(const T&) - set1.insert(one); - EXPECT_EQ(expected_constructed, decompose_constructed); - } - - { // insert(hint, T&&) - set1.insert(set1.begin(), 1); - EXPECT_EQ(expected_constructed, decompose_constructed); - } - - { // insert(hint, const T&) - set1.insert(set1.begin(), one); - EXPECT_EQ(expected_constructed, decompose_constructed); - } - - { // emplace(...) - set1.emplace(1); - EXPECT_EQ(expected_constructed, decompose_constructed); - set1.emplace("3"); - expected_constructed += construct_three; - EXPECT_EQ(expected_constructed, decompose_constructed); - set1.emplace(one); - EXPECT_EQ(expected_constructed, decompose_constructed); - set1.emplace(three); - expected_constructed += construct_three; - EXPECT_EQ(expected_constructed, decompose_constructed); - } - - { // emplace_hint(...) - set1.emplace_hint(set1.begin(), 1); - EXPECT_EQ(expected_constructed, decompose_constructed); - set1.emplace_hint(set1.begin(), "3"); - expected_constructed += construct_three; - EXPECT_EQ(expected_constructed, decompose_constructed); - set1.emplace_hint(set1.begin(), one); - EXPECT_EQ(expected_constructed, decompose_constructed); - set1.emplace_hint(set1.begin(), three); - expected_constructed += construct_three; - EXPECT_EQ(expected_constructed, decompose_constructed); - } - - decompose_copy_constructed = 0; - decompose_copy_assigned = 0; - decompose_move_constructed = 0; - decompose_move_assigned = 0; - int expected_copy_constructed = 0; - int expected_move_constructed = 0; - { // raw_hash_set(first, last) with random-access iterators - DecomposeSet set2(elem_vector.begin(), elem_vector.end()); - // Expect exactly one copy-constructor call for each element if no - // rehashing is done. - expected_copy_constructed += elem_vector_count; - EXPECT_EQ(expected_copy_constructed, decompose_copy_constructed); - EXPECT_EQ(expected_move_constructed, decompose_move_constructed); - EXPECT_EQ(0, decompose_move_assigned); - EXPECT_EQ(0, decompose_copy_assigned); - } - - { // raw_hash_set(first, last) with forward iterators - std::list elem_list(elem_vector.begin(), elem_vector.end()); - expected_copy_constructed = decompose_copy_constructed; - DecomposeSet set2(elem_list.begin(), elem_list.end()); - // Expect exactly N elements copied into set, expect at most 2*N elements - // moving internally for all resizing needed (for a growth factor of 2). - expected_copy_constructed += elem_vector_count; - EXPECT_EQ(expected_copy_constructed, decompose_copy_constructed); - expected_move_constructed += elem_vector_count; - EXPECT_LT(expected_move_constructed, decompose_move_constructed); - expected_move_constructed += elem_vector_count; - EXPECT_GE(expected_move_constructed, decompose_move_constructed); - EXPECT_EQ(0, decompose_move_assigned); - EXPECT_EQ(0, decompose_copy_assigned); - expected_copy_constructed = decompose_copy_constructed; - expected_move_constructed = decompose_move_constructed; - } - - { // insert(first, last) - DecomposeSet set2; - set2.insert(elem_vector.begin(), elem_vector.end()); - // Expect exactly N elements copied into set, expect at most 2*N elements - // moving internally for all resizing needed (for a growth factor of 2). - const int expected_new_elements = elem_vector_count; - const int expected_max_element_moves = 2 * elem_vector_count; - expected_copy_constructed += expected_new_elements; - EXPECT_EQ(expected_copy_constructed, decompose_copy_constructed); - expected_move_constructed += expected_max_element_moves; - EXPECT_GE(expected_move_constructed, decompose_move_constructed); - EXPECT_EQ(0, decompose_move_assigned); - EXPECT_EQ(0, decompose_copy_assigned); - expected_copy_constructed = decompose_copy_constructed; - expected_move_constructed = decompose_move_constructed; - } -} - -TEST(Table, Decompose) { - TestDecompose(false); - - struct TransparentHashIntOverload { - size_t operator()(const DecomposeType& a) const { return a.i; } - size_t operator()(int a) const { return a; } - }; - struct TransparentEqIntOverload { - bool operator()(const DecomposeType& a, const DecomposeType& b) const { - return a.i == b.i; - } - bool operator()(const DecomposeType& a, int b) const { return a.i == b; } - }; - TestDecompose(true); - TestDecompose(true); - TestDecompose(true); -} - -// Returns the largest m such that a table with m elements has the same number -// of buckets as a table with n elements. -size_t MaxDensitySize(size_t n) { - IntTable t; - t.reserve(n); - for (size_t i = 0; i != n; ++i) t.emplace(i); - const size_t c = t.bucket_count(); - while (c == t.bucket_count()) t.emplace(n++); - return t.size() - 1; -} - -struct Modulo1000Hash { - size_t operator()(int x) const { return x % 1000; } -}; - -struct Modulo1000HashTable - : public raw_hash_set, - std::allocator> {}; - -// Test that rehash with no resize happen in case of many deleted slots. -TEST(Table, RehashWithNoResize) { - Modulo1000HashTable t; - // Adding the same length (and the same hash) strings - // to have at least kMinFullGroups groups - // with Group::kWidth collisions. Then fill up to MaxDensitySize; - const size_t kMinFullGroups = 7; - std::vector keys; - for (size_t i = 0; i < MaxDensitySize(Group::kWidth * kMinFullGroups); ++i) { - int k = i * 1000; - t.emplace(k); - keys.push_back(k); - } - const size_t capacity = t.capacity(); - - // Remove elements from all groups except the first and the last one. - // All elements removed from full groups will be marked as ctrl_t::kDeleted. - const size_t erase_begin = Group::kWidth / 2; - const size_t erase_end = (t.size() / Group::kWidth - 1) * Group::kWidth; - for (size_t i = erase_begin; i < erase_end; ++i) { - EXPECT_EQ(1, t.erase(keys[i])) << i; - } - keys.erase(keys.begin() + erase_begin, keys.begin() + erase_end); - - auto last_key = keys.back(); - size_t last_key_num_probes = GetHashtableDebugNumProbes(t, last_key); - - // Make sure that we have to make a lot of probes for last key. - ASSERT_GT(last_key_num_probes, kMinFullGroups); - - int x = 1; - // Insert and erase one element, before inplace rehash happen. - while (last_key_num_probes == GetHashtableDebugNumProbes(t, last_key)) { - t.emplace(x); - ASSERT_EQ(capacity, t.capacity()); - // All elements should be there. - ASSERT_TRUE(t.find(x) != t.end()) << x; - for (const auto& k : keys) { - ASSERT_TRUE(t.find(k) != t.end()) << k; - } - t.erase(x); - ++x; - } -} - -TEST(Table, InsertEraseStressTest) { - IntTable t; - const size_t kMinElementCount = 250; - std::deque keys; - size_t i = 0; - for (; i < MaxDensitySize(kMinElementCount); ++i) { - t.emplace(i); - keys.push_back(i); - } - const size_t kNumIterations = 1000000; - for (; i < kNumIterations; ++i) { - ASSERT_EQ(1, t.erase(keys.front())); - keys.pop_front(); - t.emplace(i); - keys.push_back(i); - } -} - -TEST(Table, InsertOverloads) { - StringTable t; - // These should all trigger the insert(init_type) overload. - t.insert({{}, {}}); - t.insert({"ABC", {}}); - t.insert({"DEF", "!!!"}); - - EXPECT_THAT(t, UnorderedElementsAre(Pair("", ""), Pair("ABC", ""), - Pair("DEF", "!!!"))); -} - -TEST(Table, LargeTable) { - IntTable t; - for (int64_t i = 0; i != 100000; ++i) t.emplace(i << 40); - for (int64_t i = 0; i != 100000; ++i) ASSERT_EQ(i << 40, *t.find(i << 40)); -} - -// Timeout if copy is quadratic as it was in Rust. -TEST(Table, EnsureNonQuadraticAsInRust) { - static const size_t kLargeSize = 1 << 15; - - IntTable t; - for (size_t i = 0; i != kLargeSize; ++i) { - t.insert(i); - } - - // If this is quadratic, the test will timeout. - IntTable t2; - for (const auto& entry : t) t2.insert(entry); -} - -TEST(Table, ClearBug) { - IntTable t; - constexpr size_t capacity = container_internal::Group::kWidth - 1; - constexpr size_t max_size = capacity / 2 + 1; - for (size_t i = 0; i < max_size; ++i) { - t.insert(i); - } - ASSERT_EQ(capacity, t.capacity()); - intptr_t original = reinterpret_cast(&*t.find(2)); - t.clear(); - ASSERT_EQ(capacity, t.capacity()); - for (size_t i = 0; i < max_size; ++i) { - t.insert(i); - } - ASSERT_EQ(capacity, t.capacity()); - intptr_t second = reinterpret_cast(&*t.find(2)); - // We are checking that original and second are close enough to each other - // that they are probably still in the same group. This is not strictly - // guaranteed. - EXPECT_LT(static_cast(std::abs(original - second)), - capacity * sizeof(IntTable::value_type)); -} - -TEST(Table, Erase) { - IntTable t; - EXPECT_TRUE(t.find(0) == t.end()); - auto res = t.emplace(0); - EXPECT_TRUE(res.second); - EXPECT_EQ(1, t.size()); - t.erase(res.first); - EXPECT_EQ(0, t.size()); - EXPECT_TRUE(t.find(0) == t.end()); -} - -TEST(Table, EraseMaintainsValidIterator) { - IntTable t; - const int kNumElements = 100; - for (int i = 0; i < kNumElements; i ++) { - EXPECT_TRUE(t.emplace(i).second); - } - EXPECT_EQ(t.size(), kNumElements); - - int num_erase_calls = 0; - auto it = t.begin(); - while (it != t.end()) { - t.erase(it++); - num_erase_calls++; - } - - EXPECT_TRUE(t.empty()); - EXPECT_EQ(num_erase_calls, kNumElements); -} - -// Collect N bad keys by following algorithm: -// 1. Create an empty table and reserve it to 2 * N. -// 2. Insert N random elements. -// 3. Take first Group::kWidth - 1 to bad_keys array. -// 4. Clear the table without resize. -// 5. Go to point 2 while N keys not collected -std::vector CollectBadMergeKeys(size_t N) { - static constexpr int kGroupSize = Group::kWidth - 1; - - auto topk_range = [](size_t b, size_t e, - IntTable* t) -> std::vector { - for (size_t i = b; i != e; ++i) { - t->emplace(i); - } - std::vector res; - res.reserve(kGroupSize); - auto it = t->begin(); - for (size_t i = b; i != e && i != b + kGroupSize; ++i, ++it) { - res.push_back(*it); - } - return res; - }; - - std::vector bad_keys; - bad_keys.reserve(N); - IntTable t; - t.reserve(N * 2); - - for (size_t b = 0; bad_keys.size() < N; b += N) { - auto keys = topk_range(b, b + N, &t); - bad_keys.insert(bad_keys.end(), keys.begin(), keys.end()); - t.erase(t.begin(), t.end()); - EXPECT_TRUE(t.empty()); - } - return bad_keys; -} - -struct ProbeStats { - // Number of elements with specific probe length over all tested tables. - std::vector all_probes_histogram; - // Ratios total_probe_length/size for every tested table. - std::vector single_table_ratios; - - // Average ratio total_probe_length/size over tables. - double AvgRatio() const { - return std::accumulate(single_table_ratios.begin(), - single_table_ratios.end(), 0.0) / - single_table_ratios.size(); - } - - // Maximum ratio total_probe_length/size over tables. - double MaxRatio() const { - return *std::max_element(single_table_ratios.begin(), - single_table_ratios.end()); - } - - // Percentile ratio total_probe_length/size over tables. - double PercentileRatio(double Percentile = 0.95) const { - auto r = single_table_ratios; - auto mid = r.begin() + static_cast(r.size() * Percentile); - if (mid != r.end()) { - std::nth_element(r.begin(), mid, r.end()); - return *mid; - } else { - return MaxRatio(); - } - } - - // Maximum probe length over all elements and all tables. - size_t MaxProbe() const { return all_probes_histogram.size(); } - - // Fraction of elements with specified probe length. - std::vector ProbeNormalizedHistogram() const { - double total_elements = std::accumulate(all_probes_histogram.begin(), - all_probes_histogram.end(), 0ull); - std::vector res; - for (size_t p : all_probes_histogram) { - res.push_back(p / total_elements); - } - return res; - } - - size_t PercentileProbe(double Percentile = 0.99) const { - size_t idx = 0; - for (double p : ProbeNormalizedHistogram()) { - if (Percentile > p) { - Percentile -= p; - ++idx; - } else { - return idx; - } - } - return idx; - } - - friend std::ostream& operator<<(std::ostream& out, const ProbeStats& s) { - out << "{AvgRatio:" << s.AvgRatio() << ", MaxRatio:" << s.MaxRatio() - << ", PercentileRatio:" << s.PercentileRatio() - << ", MaxProbe:" << s.MaxProbe() << ", Probes=["; - for (double p : s.ProbeNormalizedHistogram()) { - out << p << ","; - } - out << "]}"; - - return out; - } -}; - -struct ExpectedStats { - double avg_ratio; - double max_ratio; - std::vector> pecentile_ratios; - std::vector> pecentile_probes; - - friend std::ostream& operator<<(std::ostream& out, const ExpectedStats& s) { - out << "{AvgRatio:" << s.avg_ratio << ", MaxRatio:" << s.max_ratio - << ", PercentileRatios: ["; - for (auto el : s.pecentile_ratios) { - out << el.first << ":" << el.second << ", "; - } - out << "], PercentileProbes: ["; - for (auto el : s.pecentile_probes) { - out << el.first << ":" << el.second << ", "; - } - out << "]}"; - - return out; - } -}; - -void VerifyStats(size_t size, const ExpectedStats& exp, - const ProbeStats& stats) { - EXPECT_LT(stats.AvgRatio(), exp.avg_ratio) << size << " " << stats; - EXPECT_LT(stats.MaxRatio(), exp.max_ratio) << size << " " << stats; - for (auto pr : exp.pecentile_ratios) { - EXPECT_LE(stats.PercentileRatio(pr.first), pr.second) - << size << " " << pr.first << " " << stats; - } - - for (auto pr : exp.pecentile_probes) { - EXPECT_LE(stats.PercentileProbe(pr.first), pr.second) - << size << " " << pr.first << " " << stats; - } -} - -using ProbeStatsPerSize = std::map; - -// Collect total ProbeStats on num_iters iterations of the following algorithm: -// 1. Create new table and reserve it to keys.size() * 2 -// 2. Insert all keys xored with seed -// 3. Collect ProbeStats from final table. -ProbeStats CollectProbeStatsOnKeysXoredWithSeed( - const std::vector& keys, size_t num_iters) { - const size_t reserve_size = keys.size() * 2; - - ProbeStats stats; - - int64_t seed = 0x71b1a19b907d6e33; - while (num_iters--) { - seed = static_cast(static_cast(seed) * 17 + 13); - IntTable t1; - t1.reserve(reserve_size); - for (const auto& key : keys) { - t1.emplace(key ^ seed); - } - - auto probe_histogram = GetHashtableDebugNumProbesHistogram(t1); - stats.all_probes_histogram.resize( - std::max(stats.all_probes_histogram.size(), probe_histogram.size())); - std::transform(probe_histogram.begin(), probe_histogram.end(), - stats.all_probes_histogram.begin(), - stats.all_probes_histogram.begin(), std::plus()); - - size_t total_probe_seq_length = 0; - for (size_t i = 0; i < probe_histogram.size(); ++i) { - total_probe_seq_length += i * probe_histogram[i]; - } - stats.single_table_ratios.push_back(total_probe_seq_length * 1.0 / - keys.size()); - t1.erase(t1.begin(), t1.end()); - } - return stats; -} - -ExpectedStats XorSeedExpectedStats() { - constexpr bool kRandomizesInserts = -#ifdef NDEBUG - false; -#else // NDEBUG - true; -#endif // NDEBUG - - // The effective load factor is larger in non-opt mode because we insert - // elements out of order. - switch (container_internal::Group::kWidth) { - case 8: - if (kRandomizesInserts) { - return {0.05, - 1.0, - {{0.95, 0.5}}, - {{0.95, 0}, {0.99, 2}, {0.999, 4}, {0.9999, 10}}}; - } else { - return {0.05, - 2.0, - {{0.95, 0.1}}, - {{0.95, 0}, {0.99, 2}, {0.999, 4}, {0.9999, 10}}}; - } - case 16: - if (kRandomizesInserts) { - return {0.1, - 2.0, - {{0.95, 0.1}}, - {{0.95, 0}, {0.99, 1}, {0.999, 8}, {0.9999, 15}}}; - } else { - return {0.05, - 1.0, - {{0.95, 0.05}}, - {{0.95, 0}, {0.99, 1}, {0.999, 4}, {0.9999, 10}}}; - } - } - ABSL_RAW_LOG(FATAL, "%s", "Unknown Group width"); - return {}; -} - -// TODO(b/80415403): Figure out why this test is so flaky, esp. on MSVC -TEST(Table, DISABLED_EnsureNonQuadraticTopNXorSeedByProbeSeqLength) { - ProbeStatsPerSize stats; - std::vector sizes = {Group::kWidth << 5, Group::kWidth << 10}; - for (size_t size : sizes) { - stats[size] = - CollectProbeStatsOnKeysXoredWithSeed(CollectBadMergeKeys(size), 200); - } - auto expected = XorSeedExpectedStats(); - for (size_t size : sizes) { - auto& stat = stats[size]; - VerifyStats(size, expected, stat); - LOG(INFO) << size << " " << stat; - } -} - -// Collect total ProbeStats on num_iters iterations of the following algorithm: -// 1. Create new table -// 2. Select 10% of keys and insert 10 elements key * 17 + j * 13 -// 3. Collect ProbeStats from final table -ProbeStats CollectProbeStatsOnLinearlyTransformedKeys( - const std::vector& keys, size_t num_iters) { - ProbeStats stats; - - std::random_device rd; - std::mt19937 rng(rd()); - auto linear_transform = [](size_t x, size_t y) { return x * 17 + y * 13; }; - std::uniform_int_distribution dist(0, keys.size()-1); - while (num_iters--) { - IntTable t1; - size_t num_keys = keys.size() / 10; - size_t start = dist(rng); - for (size_t i = 0; i != num_keys; ++i) { - for (size_t j = 0; j != 10; ++j) { - t1.emplace(linear_transform(keys[(i + start) % keys.size()], j)); - } - } - - auto probe_histogram = GetHashtableDebugNumProbesHistogram(t1); - stats.all_probes_histogram.resize( - std::max(stats.all_probes_histogram.size(), probe_histogram.size())); - std::transform(probe_histogram.begin(), probe_histogram.end(), - stats.all_probes_histogram.begin(), - stats.all_probes_histogram.begin(), std::plus()); - - size_t total_probe_seq_length = 0; - for (size_t i = 0; i < probe_histogram.size(); ++i) { - total_probe_seq_length += i * probe_histogram[i]; - } - stats.single_table_ratios.push_back(total_probe_seq_length * 1.0 / - t1.size()); - t1.erase(t1.begin(), t1.end()); - } - return stats; -} - -ExpectedStats LinearTransformExpectedStats() { - constexpr bool kRandomizesInserts = -#ifdef NDEBUG - false; -#else // NDEBUG - true; -#endif // NDEBUG - - // The effective load factor is larger in non-opt mode because we insert - // elements out of order. - switch (container_internal::Group::kWidth) { - case 8: - if (kRandomizesInserts) { - return {0.1, - 0.5, - {{0.95, 0.3}}, - {{0.95, 0}, {0.99, 1}, {0.999, 8}, {0.9999, 15}}}; - } else { - return {0.4, - 0.6, - {{0.95, 0.5}}, - {{0.95, 1}, {0.99, 14}, {0.999, 23}, {0.9999, 26}}}; - } - case 16: - if (kRandomizesInserts) { - return {0.1, - 0.4, - {{0.95, 0.3}}, - {{0.95, 1}, {0.99, 2}, {0.999, 9}, {0.9999, 15}}}; - } else { - return {0.05, - 0.2, - {{0.95, 0.1}}, - {{0.95, 0}, {0.99, 1}, {0.999, 6}, {0.9999, 10}}}; - } - } - ABSL_RAW_LOG(FATAL, "%s", "Unknown Group width"); - return {}; -} - -// TODO(b/80415403): Figure out why this test is so flaky. -TEST(Table, DISABLED_EnsureNonQuadraticTopNLinearTransformByProbeSeqLength) { - ProbeStatsPerSize stats; - std::vector sizes = {Group::kWidth << 5, Group::kWidth << 10}; - for (size_t size : sizes) { - stats[size] = CollectProbeStatsOnLinearlyTransformedKeys( - CollectBadMergeKeys(size), 300); - } - auto expected = LinearTransformExpectedStats(); - for (size_t size : sizes) { - auto& stat = stats[size]; - VerifyStats(size, expected, stat); - LOG(INFO) << size << " " << stat; - } -} - -TEST(Table, EraseCollision) { - BadTable t; - - // 1 2 3 - t.emplace(1); - t.emplace(2); - t.emplace(3); - EXPECT_THAT(*t.find(1), 1); - EXPECT_THAT(*t.find(2), 2); - EXPECT_THAT(*t.find(3), 3); - EXPECT_EQ(3, t.size()); - - // 1 DELETED 3 - t.erase(t.find(2)); - EXPECT_THAT(*t.find(1), 1); - EXPECT_TRUE(t.find(2) == t.end()); - EXPECT_THAT(*t.find(3), 3); - EXPECT_EQ(2, t.size()); - - // DELETED DELETED 3 - t.erase(t.find(1)); - EXPECT_TRUE(t.find(1) == t.end()); - EXPECT_TRUE(t.find(2) == t.end()); - EXPECT_THAT(*t.find(3), 3); - EXPECT_EQ(1, t.size()); - - // DELETED DELETED DELETED - t.erase(t.find(3)); - EXPECT_TRUE(t.find(1) == t.end()); - EXPECT_TRUE(t.find(2) == t.end()); - EXPECT_TRUE(t.find(3) == t.end()); - EXPECT_EQ(0, t.size()); -} - -TEST(Table, EraseInsertProbing) { - BadTable t(100); - - // 1 2 3 4 - t.emplace(1); - t.emplace(2); - t.emplace(3); - t.emplace(4); - - // 1 DELETED 3 DELETED - t.erase(t.find(2)); - t.erase(t.find(4)); - - // 1 10 3 11 12 - t.emplace(10); - t.emplace(11); - t.emplace(12); - - EXPECT_EQ(5, t.size()); - EXPECT_THAT(t, UnorderedElementsAre(1, 10, 3, 11, 12)); -} - -TEST(Table, Clear) { - IntTable t; - EXPECT_TRUE(t.find(0) == t.end()); - t.clear(); - EXPECT_TRUE(t.find(0) == t.end()); - auto res = t.emplace(0); - EXPECT_TRUE(res.second); - EXPECT_EQ(1, t.size()); - t.clear(); - EXPECT_EQ(0, t.size()); - EXPECT_TRUE(t.find(0) == t.end()); -} - -TEST(Table, Swap) { - IntTable t; - EXPECT_TRUE(t.find(0) == t.end()); - auto res = t.emplace(0); - EXPECT_TRUE(res.second); - EXPECT_EQ(1, t.size()); - IntTable u; - t.swap(u); - EXPECT_EQ(0, t.size()); - EXPECT_EQ(1, u.size()); - EXPECT_TRUE(t.find(0) == t.end()); - EXPECT_THAT(*u.find(0), 0); -} - -TEST(Table, Rehash) { - IntTable t; - EXPECT_TRUE(t.find(0) == t.end()); - t.emplace(0); - t.emplace(1); - EXPECT_EQ(2, t.size()); - t.rehash(128); - EXPECT_EQ(2, t.size()); - EXPECT_THAT(*t.find(0), 0); - EXPECT_THAT(*t.find(1), 1); -} - -TEST(Table, RehashDoesNotRehashWhenNotNecessary) { - IntTable t; - t.emplace(0); - t.emplace(1); - auto* p = &*t.find(0); - t.rehash(1); - EXPECT_EQ(p, &*t.find(0)); -} - -TEST(Table, RehashZeroDoesNotAllocateOnEmptyTable) { - IntTable t; - t.rehash(0); - EXPECT_EQ(0, t.bucket_count()); -} - -TEST(Table, RehashZeroDeallocatesEmptyTable) { - IntTable t; - t.emplace(0); - t.clear(); - EXPECT_NE(0, t.bucket_count()); - t.rehash(0); - EXPECT_EQ(0, t.bucket_count()); -} - -TEST(Table, RehashZeroForcesRehash) { - IntTable t; - t.emplace(0); - t.emplace(1); - auto* p = &*t.find(0); - t.rehash(0); - EXPECT_NE(p, &*t.find(0)); -} - -TEST(Table, ConstructFromInitList) { - using P = std::pair; - struct Q { - operator P() const { return {}; } // NOLINT - }; - StringTable t = {P(), Q(), {}, {{}, {}}}; -} - -TEST(Table, CopyConstruct) { - IntTable t; - t.emplace(0); - EXPECT_EQ(1, t.size()); - { - IntTable u(t); - EXPECT_EQ(1, u.size()); - EXPECT_THAT(*u.find(0), 0); - } - { - IntTable u{t}; - EXPECT_EQ(1, u.size()); - EXPECT_THAT(*u.find(0), 0); - } - { - IntTable u = t; - EXPECT_EQ(1, u.size()); - EXPECT_THAT(*u.find(0), 0); - } -} - -TEST(Table, CopyConstructWithAlloc) { - StringTable t; - t.emplace("a", "b"); - EXPECT_EQ(1, t.size()); - StringTable u(t, Alloc>()); - EXPECT_EQ(1, u.size()); - EXPECT_THAT(*u.find("a"), Pair("a", "b")); -} - -struct ExplicitAllocIntTable - : raw_hash_set, - std::equal_to, Alloc> { - ExplicitAllocIntTable() = default; -}; - -TEST(Table, AllocWithExplicitCtor) { - ExplicitAllocIntTable t; - EXPECT_EQ(0, t.size()); -} - -TEST(Table, MoveConstruct) { - { - StringTable t; - t.emplace("a", "b"); - EXPECT_EQ(1, t.size()); - - StringTable u(std::move(t)); - EXPECT_EQ(1, u.size()); - EXPECT_THAT(*u.find("a"), Pair("a", "b")); - } - { - StringTable t; - t.emplace("a", "b"); - EXPECT_EQ(1, t.size()); - - StringTable u{std::move(t)}; - EXPECT_EQ(1, u.size()); - EXPECT_THAT(*u.find("a"), Pair("a", "b")); - } - { - StringTable t; - t.emplace("a", "b"); - EXPECT_EQ(1, t.size()); - - StringTable u = std::move(t); - EXPECT_EQ(1, u.size()); - EXPECT_THAT(*u.find("a"), Pair("a", "b")); - } -} - -TEST(Table, MoveConstructWithAlloc) { - StringTable t; - t.emplace("a", "b"); - EXPECT_EQ(1, t.size()); - StringTable u(std::move(t), Alloc>()); - EXPECT_EQ(1, u.size()); - EXPECT_THAT(*u.find("a"), Pair("a", "b")); -} - -TEST(Table, CopyAssign) { - StringTable t; - t.emplace("a", "b"); - EXPECT_EQ(1, t.size()); - StringTable u; - u = t; - EXPECT_EQ(1, u.size()); - EXPECT_THAT(*u.find("a"), Pair("a", "b")); -} - -TEST(Table, CopySelfAssign) { - StringTable t; - t.emplace("a", "b"); - EXPECT_EQ(1, t.size()); - t = *&t; - EXPECT_EQ(1, t.size()); - EXPECT_THAT(*t.find("a"), Pair("a", "b")); -} - -TEST(Table, MoveAssign) { - StringTable t; - t.emplace("a", "b"); - EXPECT_EQ(1, t.size()); - StringTable u; - u = std::move(t); - EXPECT_EQ(1, u.size()); - EXPECT_THAT(*u.find("a"), Pair("a", "b")); -} - -TEST(Table, Equality) { - StringTable t; - std::vector> v = {{"a", "b"}, - {"aa", "bb"}}; - t.insert(std::begin(v), std::end(v)); - StringTable u = t; - EXPECT_EQ(u, t); -} - -TEST(Table, Equality2) { - StringTable t; - std::vector> v1 = {{"a", "b"}, - {"aa", "bb"}}; - t.insert(std::begin(v1), std::end(v1)); - StringTable u; - std::vector> v2 = {{"a", "a"}, - {"aa", "aa"}}; - u.insert(std::begin(v2), std::end(v2)); - EXPECT_NE(u, t); -} - -TEST(Table, Equality3) { - StringTable t; - std::vector> v1 = {{"b", "b"}, - {"bb", "bb"}}; - t.insert(std::begin(v1), std::end(v1)); - StringTable u; - std::vector> v2 = {{"a", "a"}, - {"aa", "aa"}}; - u.insert(std::begin(v2), std::end(v2)); - EXPECT_NE(u, t); -} - -TEST(Table, NumDeletedRegression) { - IntTable t; - t.emplace(0); - t.erase(t.find(0)); - // construct over a deleted slot. - t.emplace(0); - t.clear(); -} - -TEST(Table, FindFullDeletedRegression) { - IntTable t; - for (int i = 0; i < 1000; ++i) { - t.emplace(i); - t.erase(t.find(i)); - } - EXPECT_EQ(0, t.size()); -} - -TEST(Table, ReplacingDeletedSlotDoesNotRehash) { - size_t n; - { - // Compute n such that n is the maximum number of elements before rehash. - IntTable t; - t.emplace(0); - size_t c = t.bucket_count(); - for (n = 1; c == t.bucket_count(); ++n) t.emplace(n); - --n; - } - IntTable t; - t.rehash(n); - const size_t c = t.bucket_count(); - for (size_t i = 0; i != n; ++i) t.emplace(i); - EXPECT_EQ(c, t.bucket_count()) << "rehashing threshold = " << n; - t.erase(0); - t.emplace(0); - EXPECT_EQ(c, t.bucket_count()) << "rehashing threshold = " << n; -} - -TEST(Table, NoThrowMoveConstruct) { - ASSERT_TRUE( - std::is_nothrow_copy_constructible>::value); - ASSERT_TRUE(std::is_nothrow_copy_constructible< - std::equal_to>::value); - ASSERT_TRUE(std::is_nothrow_copy_constructible>::value); - EXPECT_TRUE(std::is_nothrow_move_constructible::value); -} - -TEST(Table, NoThrowMoveAssign) { - ASSERT_TRUE( - std::is_nothrow_move_assignable>::value); - ASSERT_TRUE( - std::is_nothrow_move_assignable>::value); - ASSERT_TRUE(std::is_nothrow_move_assignable>::value); - ASSERT_TRUE( - absl::allocator_traits>::is_always_equal::value); - EXPECT_TRUE(std::is_nothrow_move_assignable::value); -} - -TEST(Table, NoThrowSwappable) { - ASSERT_TRUE( - container_internal::IsNoThrowSwappable>()); - ASSERT_TRUE(container_internal::IsNoThrowSwappable< - std::equal_to>()); - ASSERT_TRUE(container_internal::IsNoThrowSwappable>()); - EXPECT_TRUE(container_internal::IsNoThrowSwappable()); -} - -TEST(Table, HeterogeneousLookup) { - struct Hash { - size_t operator()(int64_t i) const { return i; } - size_t operator()(double i) const { - ADD_FAILURE(); - return i; - } - }; - struct Eq { - bool operator()(int64_t a, int64_t b) const { return a == b; } - bool operator()(double a, int64_t b) const { - ADD_FAILURE(); - return a == b; - } - bool operator()(int64_t a, double b) const { - ADD_FAILURE(); - return a == b; - } - bool operator()(double a, double b) const { - ADD_FAILURE(); - return a == b; - } - }; - - struct THash { - using is_transparent = void; - size_t operator()(int64_t i) const { return i; } - size_t operator()(double i) const { return i; } - }; - struct TEq { - using is_transparent = void; - bool operator()(int64_t a, int64_t b) const { return a == b; } - bool operator()(double a, int64_t b) const { return a == b; } - bool operator()(int64_t a, double b) const { return a == b; } - bool operator()(double a, double b) const { return a == b; } - }; - - raw_hash_set> s{0, 1, 2}; - // It will convert to int64_t before the query. - EXPECT_EQ(1, *s.find(double{1.1})); - - raw_hash_set> ts{0, 1, 2}; - // It will try to use the double, and fail to find the object. - EXPECT_TRUE(ts.find(1.1) == ts.end()); -} - -template -using CallFind = decltype(std::declval().find(17)); - -template -using CallErase = decltype(std::declval().erase(17)); - -template -using CallExtract = decltype(std::declval().extract(17)); - -template -using CallPrefetch = decltype(std::declval().prefetch(17)); - -template -using CallCount = decltype(std::declval().count(17)); - -template