C++: Limit flow through sinks and sources in cpp/upcast-array-pointer-arithmetic
#19434
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Pull Request Overview
This PR refines the CastArrayPointerArithmetic dataflow query by preventing flow through both source and sink nodes and updates the expected test outputs accordingly.
- Added
isBarrierInandisBarrierOutpredicates to treat sources and sinks as barriers in the dataflow config. - Removed obsolete expected edges and subpaths from the test output to match the new barrier behavior in
CastArrayPointerArithmetic.expected.
Reviewed Changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.
| File | Description |
|---|---|
| cpp/ql/src/Likely Bugs/Conversion/CastArrayPointerArithmetic.ql | Defined source and sink nodes as barriers (isBarrierIn/isBarrierOut) |
| cpp/ql/test/query-tests/Likely Bugs/Conversion/CastArrayPointerArithmetic/CastArrayPointerArithmetic.expected | Removed expected edges and subpaths that are now blocked by the new barrier logic |
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