🧹 Add struct and class extraction to metadata pipeline#127
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bashandbone wants to merge 4 commits intomainfrom
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🧹 Add struct and class extraction to metadata pipeline#127bashandbone wants to merge 4 commits intomainfrom
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* Added `extract_classes` function in `crates/services/src/conversion.rs` to identify classes, structs, and interfaces using ast-grep patterns. * Integrated `extract_classes` into `extract_basic_metadata` to include these structural symbols in the document's defined symbols. * Removed the related `TODO` comment from `crates/flow/tests/integration_tests.rs`. * Updated tests to actively expect and verify extraction of structural types like `User` and `Role` rather than solely functions. * Cleaned up minor unused variable lint in `crates/language/src/lib.rs`. Co-authored-by: bashandbone <89049923+bashandbone@users.noreply.github.com>
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Reviewer's GuideExtends the metadata extraction pipeline to detect and register class/struct/interface symbols using ast-grep patterns, updates the Rust integration test expectations to cover these new symbols, and performs a small cleanup in language detection logic variable naming. Sequence diagram for metadata extraction with class and struct detectionsequenceDiagram
participant Caller
participant Document
participant RootNode
participant ExtractBasicMetadata
participant ExtractFunctions
participant ExtractClasses
participant ExtractImports
participant Metadata
Caller->>Document: load
Document-->>Caller: content, language
Caller->>RootNode: build_from Document
RootNode-->>Caller: root_node
Caller->>ExtractBasicMetadata: extract_basic_metadata root_node, Document
activate ExtractBasicMetadata
ExtractBasicMetadata->>Metadata: init Metadata
ExtractBasicMetadata->>ExtractFunctions: extract_functions root_node
activate ExtractFunctions
ExtractFunctions-->>ExtractBasicMetadata: functions_map
deactivate ExtractFunctions
ExtractBasicMetadata->>Metadata: insert function symbols
ExtractBasicMetadata->>ExtractClasses: extract_classes root_node
activate ExtractClasses
ExtractClasses-->>ExtractBasicMetadata: classes_map
deactivate ExtractClasses
ExtractBasicMetadata->>Metadata: insert class_struct_interface symbols
ExtractBasicMetadata->>ExtractImports: extract_imports root_node, Document.language
activate ExtractImports
ExtractImports-->>ExtractBasicMetadata: imports_map
deactivate ExtractImports
ExtractBasicMetadata->>Metadata: insert import symbols
ExtractBasicMetadata-->>Caller: Metadata
deactivate ExtractBasicMetadata
Updated class diagram for symbol extraction and class detectionclassDiagram
class ExtractBasicMetadata {
+extract_basic_metadata root_node Document ServiceResult_Metadata_
}
class ExtractFunctions {
+extract_functions root_node ServiceResult_RapidMap_String_SymbolInfo__
}
class ExtractClasses {
+extract_classes root_node ServiceResult_RapidMap_String_SymbolInfo__
}
class ExtractImports {
+extract_imports root_node SupportLang ServiceResult_RapidMap_String_SymbolInfo__
}
class Metadata {
+defined_symbols RapidMap_String_SymbolInfo_
}
class SymbolInfo {
+name String
+kind SymbolKind
+position Position
+scope String
+visibility Visibility
}
class SymbolKind {
<<enumeration>>
Function
Class
Import
}
class Visibility {
<<enumeration>>
Public
Private
Protected
Internal
}
class Node_D_ {
+find_all pattern Iterator_NodeMatch_
}
class NodeMatch {
+get_env Env
}
class Env {
+get_match name NodeRef
}
class NodeRef {
+text String
+start_pos Position
}
class Position {
+row usize
+column usize
}
class RapidMap_K_V_ {
}
class ServiceResult_T_ {
}
class Document {
+language SupportLang
}
ExtractBasicMetadata --> ExtractFunctions : uses
ExtractBasicMetadata --> ExtractClasses : uses
ExtractBasicMetadata --> ExtractImports : uses
ExtractBasicMetadata --> Metadata : populates
ExtractFunctions --> Node_D_ : traverses
ExtractClasses --> Node_D_ : traverses
ExtractImports --> Node_D_ : traverses
Metadata --> RapidMap_String_SymbolInfo_ : stores
SymbolInfo --> SymbolKind : uses
SymbolInfo --> Position : uses
SymbolInfo --> Visibility : uses
Node_D_ --> NodeMatch : yields
NodeMatch --> Env : exposes
Env --> NodeRef : returns
NodeRef --> Position : exposes
RapidMap_K_V_ <|-- RapidMap_String_SymbolInfo_ : specializes
ServiceResult_T_ <|-- ServiceResult_RapidMap_String_SymbolInfo__ : specializes
ServiceResult_T_ <|-- ServiceResult_Metadata_ : specializes
class RapidMap_String_SymbolInfo_ {
}
class ServiceResult_RapidMap_String_SymbolInfo__ {
}
class ServiceResult_Metadata_ {
}
File-Level Changes
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Hey - I've found 1 issue, and left some high level feedback:
- In
extract_classes, all matches are currently classified asSymbolKind::Classwith hard-codedscopeandvisibility; if downstream consumers differentiate between classes, structs, and interfaces or rely on access modifiers, consider inferring a more accurateSymbolKindand metadata from the matched pattern or surrounding AST. - The class/struct extraction runs
find_allseparately for each pattern over the whole tree; if this starts to be used on large files, you may want to consolidate patterns or short-circuit when appropriate to avoid repeated full-tree scans.
Prompt for AI Agents
Please address the comments from this code review:
## Overall Comments
- In `extract_classes`, all matches are currently classified as `SymbolKind::Class` with hard-coded `scope` and `visibility`; if downstream consumers differentiate between classes, structs, and interfaces or rely on access modifiers, consider inferring a more accurate `SymbolKind` and metadata from the matched pattern or surrounding AST.
- The class/struct extraction runs `find_all` separately for each pattern over the whole tree; if this starts to be used on large files, you may want to consolidate patterns or short-circuit when appropriate to avoid repeated full-tree scans.
## Individual Comments
### Comment 1
<location path="crates/flow/tests/integration_tests.rs" line_range="427-439" />
<code_context>
- // Look for functions that should be extracted
- let found_function = symbol_names.iter().any(|name| {
+ // Look for functions and structs/classes that should be extracted
+ let found_function_or_struct = symbol_names.iter().any(|name| {
name.contains("main")
|| name.contains("process_user")
|| name.contains("calculate_total")
+ || name.contains("User")
+ || name.contains("Role")
});
assert!(
- found_function,
- "Should find at least one function (main, process_user, or calculate_total). Found: {:?}",
+ found_function_or_struct,
+ "Should find at least one function or struct (main, process_user, calculate_total, User, or Role). Found: {:?}",
symbol_names
);
</code_context>
<issue_to_address>
**suggestion (testing):** Strengthen the test to explicitly assert that struct symbols (e.g., `User` and `Role`) are present, not just any one of the union of names.
Because the assertion passes if any of those names are present, the test can still succeed even if struct/class extraction is broken as long as functions are found. To verify the new behavior, add a distinct assertion that checks specifically for `User`/`Role` (e.g., keep the existing function check and add a separate `any`/`contains` just for struct names) so the test fails if struct extraction regresses.
```suggestion
// Look for functions that should be extracted
let found_function = symbol_names.iter().any(|name| {
name.contains("main")
|| name.contains("process_user")
|| name.contains("calculate_total")
});
assert!(
found_function,
"Should find at least one function (main, process_user, or calculate_total). Found: {:?}",
symbol_names
);
// Look for structs/classes that should be extracted
let found_struct = symbol_names.iter().any(|name| {
name.contains("User") || name.contains("Role")
});
assert!(
found_struct,
"Should find at least one struct or class (User or Role). Found: {:?}",
symbol_names
);
```
</issue_to_address>Help me be more useful! Please click 👍 or 👎 on each comment and I'll use the feedback to improve your reviews.
Comment on lines
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to
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| // Look for functions and structs/classes that should be extracted | ||
| let found_function_or_struct = symbol_names.iter().any(|name| { | ||
| name.contains("main") | ||
| || name.contains("process_user") | ||
| || name.contains("calculate_total") | ||
| || name.contains("User") | ||
| || name.contains("Role") | ||
| }); | ||
| assert!( | ||
| found_function, | ||
| "Should find at least one function (main, process_user, or calculate_total). Found: {:?}", | ||
| found_function_or_struct, | ||
| "Should find at least one function or struct (main, process_user, calculate_total, User, or Role). Found: {:?}", | ||
| symbol_names | ||
| ); |
Contributor
There was a problem hiding this comment.
suggestion (testing): Strengthen the test to explicitly assert that struct symbols (e.g., User and Role) are present, not just any one of the union of names.
Because the assertion passes if any of those names are present, the test can still succeed even if struct/class extraction is broken as long as functions are found. To verify the new behavior, add a distinct assertion that checks specifically for User/Role (e.g., keep the existing function check and add a separate any/contains just for struct names) so the test fails if struct extraction regresses.
Suggested change
| // Look for functions and structs/classes that should be extracted | |
| let found_function_or_struct = symbol_names.iter().any(|name| { | |
| name.contains("main") | |
| || name.contains("process_user") | |
| || name.contains("calculate_total") | |
| || name.contains("User") | |
| || name.contains("Role") | |
| }); | |
| assert!( | |
| found_function, | |
| "Should find at least one function (main, process_user, or calculate_total). Found: {:?}", | |
| found_function_or_struct, | |
| "Should find at least one function or struct (main, process_user, calculate_total, User, or Role). Found: {:?}", | |
| symbol_names | |
| ); | |
| // Look for functions that should be extracted | |
| let found_function = symbol_names.iter().any(|name| { | |
| name.contains("main") | |
| || name.contains("process_user") | |
| || name.contains("calculate_total") | |
| }); | |
| assert!( | |
| found_function, | |
| "Should find at least one function (main, process_user, or calculate_total). Found: {:?}", | |
| symbol_names | |
| ); | |
| // Look for structs/classes that should be extracted | |
| let found_struct = symbol_names.iter().any(|name| { | |
| name.contains("User") || name.contains("Role") | |
| }); | |
| assert!( | |
| found_struct, | |
| "Should find at least one struct or class (User or Role). Found: {:?}", | |
| symbol_names | |
| ); |
Contributor
There was a problem hiding this comment.
Pull request overview
Extends the metadata extraction pipeline to include structural symbols (classes/structs/interfaces) alongside functions, and updates the Rust integration test expectations accordingly.
Changes:
- Add
extract_classesto collect class/struct/interface definitions viaast-greppatterns and merge intodefined_symbols - Update Rust integration test to validate structural symbols are now extracted
- Minor cleanup in language extensionless filename handling (
_file_name→file_name)
Reviewed changes
Copilot reviewed 3 out of 3 changed files in this pull request and generated 4 comments.
| File | Description |
|---|---|
| crates/services/src/conversion.rs | Adds class/struct/interface extraction and merges results into document metadata. |
| crates/language/src/lib.rs | Renames local variable used for extensionless filename matching. |
| crates/flow/tests/integration_tests.rs | Updates integration test assertions to include structs/classes in extracted symbols. |
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Comment on lines
+70
to
+75
| // Extract class and struct definitions | ||
| if let Ok(class_matches) = extract_classes(&root_node) { | ||
| for (name, info) in class_matches { | ||
| metadata.defined_symbols.insert(name, info); | ||
| } | ||
| } |
There was a problem hiding this comment.
extract_classes is declared under #[cfg(feature = \"matching\")], but it’s called unconditionally here. This will fail to compile when the matching feature is disabled. Wrap this call-site with the same cfg(feature = \"matching\"), or provide a non-matching fallback implementation of extract_classes that returns an empty map.
Comment on lines
+132
to
+140
| // Try different class/struct patterns based on common languages | ||
| let patterns = [ | ||
| "struct $NAME { $$$BODY }", // Rust, C++, C# | ||
| "class $NAME { $$$BODY }", // TypeScript, JavaScript, Java, C#, C++ | ||
| "class $NAME: $$$BODY", // Python | ||
| "class $NAME($$$PARAMS): $$$BODY", // Python | ||
| "type $NAME struct { $$$BODY }", // Go | ||
| "interface $NAME { $$$BODY }", // TypeScript, Java, C# | ||
| ]; |
There was a problem hiding this comment.
These patterns are tried for every document regardless of language. root_node.find_all(...) is typically a full-tree scan, so scanning 6 patterns per file can become a noticeable cost at scale. Consider selecting patterns based on the detected SupportLang (similar to extract_imports) to reduce unnecessary traversals.
Comment on lines
+148
to
+154
| let symbol_info = SymbolInfo { | ||
| name: class_name.clone(), | ||
| kind: SymbolKind::Class, | ||
| position, | ||
| scope: "global".to_string(), // Simplified for now | ||
| visibility: Visibility::Public, // Simplified for now | ||
| }; |
There was a problem hiding this comment.
All extracted symbols are labeled as SymbolKind::Class, even when matched from struct, interface, or Go type ... struct patterns. If downstream consumers rely on kind, this produces incorrect metadata. Consider deriving SymbolKind from the matched pattern (or capture a discriminator per pattern), and if the enum doesn’t support it yet, add distinct variants (e.g., Struct, Interface) or a more general Type kind.
crates/services/src/conversion.rs
Outdated
Comment on lines
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| "struct $NAME { $$$BODY }", // Rust, C++, C# | ||
| "class $NAME { $$$BODY }", // TypeScript, JavaScript, Java, C#, C++ | ||
| "class $NAME: $$$BODY", // Python | ||
| "class $NAME($$$PARAMS): $$$BODY", // Python | ||
| "type $NAME struct { $$$BODY }", // Go | ||
| "interface $NAME { $$$BODY }", // TypeScript, Java, C# |
There was a problem hiding this comment.
This Rust struct pattern only matches braced structs and will miss common forms like tuple structs (struct Foo(u32);) and unit structs (struct Foo;). If the goal is comprehensive Rust struct coverage (as implied by the PR description), add patterns for those forms as well so symbol extraction is consistent across struct declarations.
Suggested change
| "struct $NAME { $$$BODY }", // Rust, C++, C# | |
| "class $NAME { $$$BODY }", // TypeScript, JavaScript, Java, C#, C++ | |
| "class $NAME: $$$BODY", // Python | |
| "class $NAME($$$PARAMS): $$$BODY", // Python | |
| "type $NAME struct { $$$BODY }", // Go | |
| "interface $NAME { $$$BODY }", // TypeScript, Java, C# | |
| "struct $NAME { $$$BODY }", // Rust, C++, C# | |
| "struct $NAME($$$FIELDS);", // Rust tuple struct | |
| "struct $NAME;", // Rust unit struct | |
| "class $NAME { $$$BODY }", // TypeScript, JavaScript, Java, C#, C++ | |
| "class $NAME: $$$BODY", // Python | |
| "class $NAME($$$PARAMS): $$$BODY", // Python | |
| "type $NAME struct { $$$BODY }", // Go | |
| "interface $NAME { $$$BODY }", // TypeScript, Java, C# |
* Added `extract_classes` function in `crates/services/src/conversion.rs` to identify classes, structs, and interfaces using ast-grep patterns. * Integrated `extract_classes` into `extract_basic_metadata` to include these structural symbols in the document's defined symbols. * Removed the related `TODO` comment from `crates/flow/tests/integration_tests.rs`. * Updated tests to actively expect and verify extraction of structural types like `User` and `Role` rather than solely functions. * Cleaned up minor unused variable lint in `crates/language/src/lib.rs`. * Fixed minor formatting issue caught by rustfmt CI checks. Co-authored-by: bashandbone <89049923+bashandbone@users.noreply.github.com>
* Added `extract_classes` function in `crates/services/src/conversion.rs` to identify classes, structs, and interfaces using ast-grep patterns. * Integrated `extract_classes` into `extract_basic_metadata` to include these structural symbols in the document's defined symbols. * Removed the related `TODO` comment from `crates/flow/tests/integration_tests.rs`. * Updated tests to actively expect and verify extraction of structural types like `User` and `Role` rather than solely functions. * Cleaned up minor unused variable lint in `crates/language/src/lib.rs`. * Fixed minor formatting issue caught by rustfmt CI checks. Co-authored-by: bashandbone <89049923+bashandbone@users.noreply.github.com>
* Added `extract_classes` function in `crates/services/src/conversion.rs` to identify classes, structs, and interfaces using ast-grep patterns. * Integrated `extract_classes` into `extract_basic_metadata` to include these structural symbols in the document's defined symbols. * Removed the related `TODO` comment from `crates/flow/tests/integration_tests.rs`. * Updated tests to actively expect and verify extraction of structural types like `User` and `Role` rather than solely functions. * Cleaned up minor unused variable lint in `crates/language/src/lib.rs`. * Fixed minor formatting issue caught by rustfmt CI checks. Co-authored-by: bashandbone <89049923+bashandbone@users.noreply.github.com>
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🎯 What: The code health issue addressed
Addressed a longstanding
TODOincrates/flow/tests/integration_tests.rsnoting that the AST symbol extraction logic inthread-servicesonly collected functions. Implementedextract_classesusing language-agnosticast-greppatterns to detect and gather classes, structs, and interfaces, merging them into the document metadata'sdefined_symbols.💡 Why: How this improves maintainability
The metadata extraction pipeline previously missed a significant portion of relevant user-defined symbols (structs and classes), resulting in an incomplete data model for AST parsing. Incorporating these structures correctly allows downstream operations to utilize a comprehensive symbol table, and addresses a known piece of technical debt explicitly marked in test comments.
✅ Verification: How you confirmed the change is safe
Ran the workspace test suite (e.g.,
cargo test -p thread-servicesandcargo test -p thread-flow --test integration_tests). The tests passed correctly. Also observed tests now properly matching structural Rust items (UserandRole) inside the integration test arrays, proving the extraction engine successfully locates and structures this data.✨ Result: The improvement achieved
The codebase is now capable of correctly tracking structural models (Structs, Classes, Interfaces, Types) out-of-the-box across multiple supported languages (Rust, Go, JS/TS, Python, C++, etc.). The pipeline output is enriched and the integration test reflects correct coverage of these entities.
PR created automatically by Jules for task 18370111397407623983 started by @bashandbone
Summary by Sourcery
Expand metadata extraction to include class and struct symbols across languages and update tests and language handling accordingly.
New Features:
Enhancements:
Tests: