feat(python): Add dataflow analysis with Phase 1 propagation #354
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Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
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This was referenced Nov 9, 2025
shivasurya
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This was referenced Nov 9, 2025
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## Summary - Renamed package from `pathfinder` to `codepathfinder` - Implemented `flows()` function for taint analysis (OWASP Top 10) - Added Phase 1 propagation primitives (assignment, function_args, function_returns) - Updated README with dataflow examples ## New Components **codepathfinder/propagation.py:** - PropagationType enum (Phase 1-6 types defined) - PropagationPrimitive base class - propagates namespace with 3 Phase 1 methods - create_propagation_list() helper **codepathfinder/dataflow.py:** - DataflowMatcher class for taint analysis - flows() public API function - Supports sources, sinks, sanitizers, propagation, scope **codepathfinder/ir.py:** - Added DATAFLOW enum type - Added dataflow IR validation ## Testing ✅ 99 tests pass (63 new tests for propagation/dataflow) ✅ 99% coverage (exceeds 95% requirement) ✅ Black, ruff, mypy: all clean ## Package Rename - pathfinder/ → codepathfinder/ - Updated all imports across codebase - Updated pyproject.toml, setup.py, build.gradle - Updated README examples 🤖 Generated with Claude Code Co-Authored-By: Claude <[email protected]>
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## Summary Adds Phase 2 propagation primitives (string operations) and preset bundles for common use cases. ## Changes - Implemented string_concat and string_format propagation - Added PropagationPresets (minimal, standard, comprehensive, exhaustive) - Added global configuration for default propagation/scope ## Testing - 137 tests, 99% coverage - All linters pass ## Stacked On PR #354
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Summary
Adds dataflow analysis capabilities to Python DSL with Phase 1 propagation primitives.
Changes
flows()matcher for taint analysiscodepathfinderTesting
Stacked On
PR #353