Rust: Include getAttributeMacroExpansion in isInMacroExpansion#20273
Merged
hvitved merged 2 commits intogithub:mainfrom Aug 26, 2025
Merged
Rust: Include getAttributeMacroExpansion in isInMacroExpansion#20273hvitved merged 2 commits intogithub:mainfrom
getAttributeMacroExpansion in isInMacroExpansion#20273hvitved merged 2 commits intogithub:mainfrom
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Pull Request Overview
This PR fixes false positives in Rust queries by ensuring that attribute macro expansions are properly identified as macro-expanded code. The change updates the isInMacroExpansion predicate to include attribute macros, which will prevent queries like rust/unused-variable and rust/unused-value from reporting issues within attribute macro expansions.
- Added attribute macro expansion detection to the
isInMacroExpansionpredicate - Added change notes documenting the improvement for minorAnalysis category
Reviewed Changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.
| File | Description |
|---|---|
| rust/ql/lib/codeql/rust/elements/internal/MacroCallImpl.qll | Enhanced macro expansion detection to include attribute macros |
| rust/ql/lib/change-notes/2025-08-25-in-macro-expansion.md | Documents the fix for attribute macro handling in analysis |
aibaars
approved these changes
Aug 25, 2025
geoffw0
approved these changes
Aug 26, 2025
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When investigating this false positive report, I realized that the underlying cause was that attribute macros were not taken into account when filtering away results inside expansions.
DCA confirms that the FPs have been eliminated.