fix: sort Foundry sources by ID for correct sourceList ordering #653
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When processing Foundry/Hardhat build-info, the sourceList was generated in JSON iteration order rather than by source ID. This caused bytecode source maps to reference wrong files when Echidna/Slither processed coverage data. Changes: - Add source_id_to_filename mapping to CompilationUnit - Sort sources by ID when parsing build-info - Store source ID mapping during parsing - Use filenames_for_export in solc export to maintain correct indices Fixes source map index mismatch where e.g. sourceList[185] would point to the wrong file because sources were not indexed by their compiler- assigned IDs.
Mike4751
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Fixes #652
Summary
When building Foundry projects with subdirectories that use relative paths in their
foundry.toml, thesourceListindices in exportedcombined_solc.jsonbecome misaligned with source IDs in bytecode source maps.Files Changed
compilation_unit.py_source_id_to_filenamedict to track ID→filename mappingfilenames_for_exportproperty returning filenames ordered by source IDset_source_id()method to store the mappinghardhat.pyset_source_id()to store the mapping for each sourcesolc.pyfilenames_for_exportinstead offilenamesfor correct orderingTesting
Minimal reproduction: https://github.com/Mike4751/crytic-compile-sourcelist-bug
Backwards Compatibility
✅ Simple/standard projects continue to work correctly
✅ Complex projects with relative paths are now fixed