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fix(graph): prefer C definitions over prototype source locations - #434

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DivyamTalwar wants to merge 1 commit into
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DivyamTalwar:fix/graph-prefer-c-definitions-over-prototypes
Open

DivyamTalwar wants to merge 1 commit into
activeloopai:mainfrom
DivyamTalwar:fix/graph-prefer-c-definitions-over-prototypes

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@DivyamTalwar

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Summary

Fixes #433.

The extractor deduplicates function nodes by ID and keeps the first declaration. When a prototype precedes its definition, the node retains the prototype line rather than the body span, so downstream anchors can miss implementation changes.

Track nodes originating from prototypes and let a subsequent definition replace their source location in place. Retain the same node identity and call relationships, prototype-only nodes, and the first-definition behavior for duplicate conditional definitions.

Version Bump

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

Test plan

  • Repository-native regression tests on unchanged production source: 4 failed, 12 controls passed, zero skipped.
  • Corrected focused suites: 16 passed, zero failed or skipped, with local typechecking passing.
  • Exact submitted commit 14366d1e93d59bab761074e71ac6c7e3967db7a4: independent Node 22/Linux full suite with coverage, 5,856 passed, zero failed, zero skipped. Typecheck, build, duplication guard, critical-only bundle audit and diff checks pass in the same isolated job.

Exact checkout, commands and validation logs. Results are for this branch alone, not borrowed from a combined patch branch. Tests use synthetic source/transcripts and temporary files, not customer data, real credentials or live model/backend calls.

Compatibility and limits

This is same-file C extraction only. It does not link headers to definitions in other files, change static/export visibility, or add unsupported pointer-declarator parsing. Existing anchors may change once when their source span moves from prototype to definition.

Current open-PR file inventories and issue titles were checked before submission. A clean full macOS suite and native Windows execution are not claimed. Upstream CI and maintainer acceptance remain separate from the independent validation.

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📥 Commits

Reviewing files that changed from the base of the PR and between ce30de7 and 14366d1.

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

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Successfully merging this pull request may close these issues.

C prototypes hide definition spans and prevent body edits from invalidating document anchors

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