GitNexus/gitnexus/test/fixtures/lang-resolution/rust-coverage/patterns.rs
Sparsh 04ade15451
fix(rust): scope-resolution coverage gaps — F66,F68,F71,F72 (#1934) (#1974)
* fix(rust): scope-resolution coverage gaps — F66,F68,F71,F72,F73 (#1934)

* fix(rust): reviewer fixes — macro namespace, revert pattern:(_), drop variadic

* fix(rust): wire macro resolution end-to-end + materialize unions (#1974 review)

Addresses the outstanding #1974 review (second batch). Per maintainer
decision, F72 is FULLY WIRED rather than documented capture-only.

F72 macro — was a capture-only no-op (@reference.macro dropped downstream):
- gitnexus-shared: add 'macro' ReferenceKind + Reference.kind; add
  MACRO_KINDS (['Macro']) and a MacroRegistry that resolves a macro
  invocation ONLY to a macro_rules! definition — never a same-named free
  function (the disjoint-namespace guarantee the review required).
- scope-extractor: referenceKindFromAnchor @reference.macro -> 'macro';
  normalizeNodeLabel 'macro' -> Macro.
- resolve-references: route 'macro' sites through MacroRegistry.
- emit-references / graph-bridge edges: 'macro' -> USES (kept out of the
  CALLS keyspace, which denotes function/method dispatch).
- node-lookup isLinkableLabel: Macro is linkable, bridging the registry
  def to the legacy @definition.macro graph node.
- rust query: capture macro_rules! as @declaration.macro; fix the scoped
  macro arm to capture the tail identifier, not the full path (P3).

F71 union — the @declaration.struct scope capture had no graph node to
resolve to (legacy RUST_QUERIES never captured union_item):
- legacy query: capture union_item as @definition.struct so the union is
  materialized as a Struct node and is genuinely resolvable.
- query.ts: document the deliberate union->Struct downgrade rationale.

Tests:
- rust.test.ts (parity-gated): pipeline-level union resolution + macro
  resolution (USES to the Macro, exactly one CALLS to fn, none to Macro).
  Macro resolution is registry-primary-only -> listed in
  LEGACY_RESOLVER_PARITY_EXPECTED_FAILURES['rust'].
- rust-coverage.test.ts: scoped-macro tail + macro-def capture assertions;
  reframed as capture-layer only, pointing at the pipeline tests.
- new fixtures rust-macro, rust-union.

F73: dropped from baselines.json _note (variadic was never implemented).

Rebaselined the rust capture golden + scope-capture fingerprint
(a5fdff2c..., scaling ~0.99, fixture_count 126).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* style(rust): prettier-format the Reference.kind union (#1974)

CI quality/format gate — collapse the multi-line 'macro' addition back to
one line (fits the 100-col print width).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Gergő Magyar <gergomagyar@icloud.com>
Co-authored-by: Gergo Magyar <abhigyan1.patwari@gmail.com>
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-03 07:24:37 +01:00

10 lines
461 B
Rust

// F66/F68 — let binding with various pattern shapes
fn pattern_shapes() {
let x = 1; // bare identifier
let mut y = 2; // identifier with mut
let (a, b) = (1, 2); // tuple pattern
let Some(val) = Some(3); // tuple struct pattern
let Foo { field } = Foo { field: 1 }; // struct pattern
let ref z = 4; // ref pattern
let n @ 1..=10 = 5; // captured pattern
}