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fix(graph): reject cache hits from a different source dialect - #420

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DivyamTalwar wants to merge 1 commit into
activeloopai:mainfrom
DivyamTalwar:fix/graph-reject-cross-dialect-cache-hits
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DivyamTalwar wants to merge 1 commit into
activeloopai:mainfrom
DivyamTalwar:fix/graph-reject-cross-dialect-cache-hits

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@DivyamTalwar

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Summary

Fixes #419.

Identical source bytes stored under different extensions share a cache key even though language dispatch and TS/TSX grammar selection depend on the extension. A hit can therefore return the wrong language and parse result.

Reject a cached entry when its recorded source extension differs from the requested extension. Preserve same-extension relocation hits. Native extractor controls cover JavaScript/TypeScript and TS/TSX in both directions.

Version Bump

No release requested. Package versions, dependencies, lockfiles and release workflows are unchanged.

Test plan

The repository-native focused tests report 4 failures and 17 passing controls on unchanged production source; the prepared correction passes all 21 focused tests. The final commit is independently validated by the full Node 22/Linux suite with coverage, typecheck, build, duplication guard and critical-only bundle audit. The workflow enforces zero failed and zero skipped tests.

Exact submitted commit: ce99cd2c54e309a61f4c707dac155003df391a28. Independent Linux job, commands and logs. The checkout is pinned to this commit, not a combined patch branch.

The focused tests use isolated files or source fixtures and the real parser/cache/usage code. No customer data, credentials or live model/backend calls are required.

Compatibility and limits

Comparison deliberately remains case-sensitive to match the current TSX grammar dispatch. Compatible extensions may incur conservative cache misses; the on-disk key and format are unchanged. This does not fix lost bindings on relocated cache hits, which is an independent correction.

A clean full macOS suite and native Windows validation are not claimed. Upstream CI approval and maintainer review are separate from this passing independent gate.

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📥 Commits

Reviewing files that changed from the base of the PR and between ce30de7 and ce99cd2.

📒 Files selected for processing (2)
  • src/graph/cache.ts
  • tests/shared/graph/cache.test.ts

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Content-only graph cache hits can reuse the wrong source dialect

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