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changelog.md

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description Page to follow the updates on Glider engine
icon list-check

Changelog

V1.0

API

Added functions:

  • Add with_globals function in Callables
  • Add with_operators function in Instructions
  • Add with_globals function in Instructions
  • Add with_function_signature function in Contracts
  • Add with_function_name_regex function in Contracts
  • Add with_function_name_suffix function in Contracts
  • Add with_function_name_prefix function in Contracts
  • Add with_all_function_signatures function in Contracts
  • Add with_one_of_the_function_signatures function in Contracts
  • Add without_function_signature function in Contracts
  • Add without_function_signatures function in Contracts
  • Add backward_df to all Value (Call, IndexAccess, Literal, Operator, Value, ValueExpression, VarValue) classes
  • Add forward_df to all Value (Call, IndexAccess, Literal, Operator, Value, ValueExpression, VarValue) classes
  • Add backward_df_recursive to all Value (Call, IndexAccess, Literal, Operator, Value, ValueExpression, VarValue) classes
  • Add forward_df_recursive to all Value (Call, IndexAccess, Literal, Operator, Value, ValueExpression, VarValue) classes
  • Add is_in_loop_recursive function in Instruction
  • Add is_tainted function in Value
  • Add is_tainted function in Point
  • Add loops function in Function

Refactoring:

  • Renamed all instances of extended to recursive
    • Example: extended_backward_df → backward_df_recursive

Improvements:

  • Optimized all recursive (formerly extended) functions, achieving approximately 4× performance improvement.

V0.9(28.08.2024):

API

Added functions:

  • Add filter function in APIIterable

Refactoring:

  • Make some functions deprecated:
    • Functions::with_all_properties
    • Functions::with_one_property
    • Functions::without_properties

Bug fixes:

  • Add source_code for all entities

V0.8(23.08.2024):

API

Added functions:

  • Added Modifier::properties()
  • Added StateVariable::is_accessible

Refactoring:

  • Changed return types of some functions from APIList to APISet
    • next_instructions
    • previous_instruction
    • previous_instructions
    • forward_df
    • backward_df
    • extended_forward_df
    • extended_backward_df
  • Update APIIterable implementation:
    • Now any function, that retunrs any APIIterable, that called on APIIterable be flattened
    • Exlude NoneObjects form the APIIterable

Bug fixes:

  • extended_backward_df/has_extended_global_df does not return state_vars (when the state var is declared in base contracts) Now extended_backward_df/has_extended_global_df will work for inherited private variables too.
  • Fixed TypeError: NoneObject object is not iterable

V0.7(01.08.2024):

API

Added functions:

  • Added Point::has_extended_global_df

Refactoring:

  • Added types for Values

Bug fixes:

  • Take into account the functions called when calling Instruction::extended_backward_df.
  • Take into account the functions called when calling Instruction::extended_backward_df.
  • Fixed extended_forward_df. It couldn’t go through the multiple chain of calls

Optimizations:

  • Optimized (about 10%) extended_next_instructions function

V0.6(09.07.2024):

API

Added functions:

  • Added Functions::with_properties_considering_modifiers
  • Added ArgumentPoint class
  • Added StatePoint class
  • Added GlobalPoint classes
  • Added custom iterables. Now there are, APIList, APISet and APITuple.

Refactoring:

  • Rename class Var to VarValue
  • Rename a function Vars::get_definig_nodes -> Vars::get_definig_points. Also, the return type has changed. Now it is possible to use it as an API function.
  • Changed the return type of Contract::errors() from List["api.Error"] to "api.Errors"

Bug fixes:

  • Take into account called functions when calling Instruction::extended_previous_instructions. The algorithm includes the instructions of called functions too.

V0.5(21.06.2024):

API

Added functions:

  • Added AssemblyInstruction::get_block_instructions
  • Added global taint sources - MSG_SENDER, MSG_VALUE, BLOCK_TIMESTAMP, NOW, TX_ORIGIN
  • Added API functions to filter functions/modifiers with custom property expression
    • Functions::with_properties()
    • Functions::with_modifier_properties()
    • Modifiers::with_properties()
    • Added HAS_GLOBAL_VARIABLES_READfor functions/modifiers propetry expression
    • Example: Functions::with_modifier_properties(HAS_ARGS & (~HAS_CALLEES | IS_PRIVATE))
  • Added Callable::new_contract_instructions and Instructions::new_contract_instructions functions to get instructions that create a new contract. Also added Instruction::is_new_contract function
  • Added Callables::extended_callee_functions
  • Added Functions::extended_caller_functions
  • Added Functions::extended_caller_modifiers

Refactoring

  • Removed Instrucitons::asm_instructions()
  • Made Instruction's operands single Value
  • Function::return_tuple returns Value

Bug fixes:

  • Added missing return data types
  • Fixed bug in the data flow graph

V0.4(16.05.2024):

API

Added functions:

  • Callable.extended_callee_functions()
  • Callable.extended_instructions()
  • Function.extended_caller_functions()
  • Functions.with_declarer_contract_name()
  • Value.get_state_vars()
  • Value.get_local_vars()
  • Value.get_global_vars()
  • Value.get_arg_vars()
  • Value.get_vars()

Refactorings:

  • Introduced a common base class Variable
  • function name refactorings
  • entity names and type and similar fields became properties (methods before)
  • ConditionalExpression is removed, and the ValueExpression-s will express that instead.

Bug fixes:

  • modifier property filter bug fix
  • different fixes with Value/Call functionality
  • fixes in extended* functions

Optimizations:

  • Implemented query caching; this works only for the DB query part. Whenever a user runs a query, the DB query (declarative) part will get cached for some time, and the next run will return the DB output instantly. This hugely improves the process of writing queries as usually the most debugging is done after the DB results are fetched, e.g. on dataflow checks. The cache is global, so in case one user has already queried the exact same thing, other users will not wait for the result as well
  • Query translation optimizations
  • Query execution optimization.