Files
codegraph/codegraph-kernel
Colby Mchenry 9924684899 fix(dart): a member keeps the dartdoc written above its annotations (#2387)
A Dart member's annotations are siblings that stand between it and the
dartdoc written above them:

    /// Builds the widget.
    @override
    Widget build(BuildContext context) { ... }

Both extractors read a docstring from the comments directly before the
declaration (or its `declaration` wrapper) and stopped at the first node
that was not a comment, so the annotation ended the run before the `///`
was reached. Members behind `@override`, `@protected`, `@mustCallSuper`,
`@pragma(...)`, `@internal` and the like lost their documentation, and
searching for words in it didn't find them.

Extraction (TS + kernel, at parity):
- getPrecedingDocstring takes an optional list of sibling types to step
  over, and Dart sets `docstringStepOverTypes: ['annotation']`. Stacked,
  multi-line and inline annotations are passed, and comments on either
  side of one still join (`/// a` `@x` `// b` gives "a" and "b" on two
  lines), as adjacent comments already did. Any other node still ends
  the walk: the previous member's body, a field, a top-level variable,
  an import or another declaration.
- The kernel's shared docstring.rs gains preceding_docstring_stepping_over.
  preceding_docstring passes an empty list, so every other language is
  unchanged; only Dart's docstring_of passes ["annotation"].
- Class-like declarations needed nothing: a class, mixin, extension,
  extension type, enum or typedef node starts at its first annotation,
  so the dartdoc above it is already the node's previous sibling.

Validated on felangel/bloc @b9be1e2 and rrousselGit/riverpod @4ba1be2 at
main 249d9a86 (and at 1b752de2) with the kernel loaded: docstrings bloc
+26, riverpod +1,072 with 9 changed and none removed. Nodes otherwise,
edges, refs and files are byte-identical, full-index kernel and wasm
dumps are byte-identical, and the kernel parity sweeps show 0 diffs.

Not changed: a comment between an annotation and the declaration still
hides the annotation from the decorator scan. Recording those would only
add wrong edges until Dart `decorates` resolution stops preferring
methods: riverpod's `@riverpod` edges land on an analyzer getter rather
than `const riverpod`.

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-06 16:29:29 +00:00
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