perf(semantic): defer declare lookup for empty accessors#22810
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graphite-app[bot] merged 1 commit intoMay 28, 2026
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Pull request overview
Defers the is_declare computation in check_method_definition so it only runs for empty-body accessors, avoiding an unnecessary class lookup on the common method path.
Changes:
- Removed unconditional
is_declarecalculation at the top ofcheck_method_definition. - Inlined the
is_declarecalculation into the accessor-without-body branch, gated onis_accessor && is_empty_body && !is_abstract.
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Only compute whether the containing class is `declare` when checking empty-body TypeScript accessors. Ordinary methods and overload signatures do not need that value, so the hot method path can avoid repeated containing-class lookups.
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camc314
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Jun 1, 2026
### 🚀 Features - 9c71f2e ast, codegen, formatter: Add `WithClauseKeyword::as_str` helper and use it (#22791) (camc314) ### 🐛 Bug Fixes - cf5769c parser: Reject TypeScript declarations in single-statement context (#22827) (Boshen) - c360fb6 parser: Reject generators in ambient contexts and overload signatures (TS1221/TS1222) (#22848) (Boshen) - cc60d8d parser: Reject invalid index signature parameter types (TS1268/TS1337) (#22852) (Boshen) - 3d13e29 parser: Reject `declare` in an already-ambient context (TS1038) (#22850) (Boshen) - 5152854 parser: Reject statements in ambient contexts (TS1036) (#22849) (Boshen) - 4f9afc5 parser: Reject `export as namespace` inside a namespace body (TS1316) (#22846) (Boshen) - 2eafea6 parser: Reject function implementations in ambient contexts (TS1183) (#22845) (Boshen) - c645615 parser: Reject incompatible class member modifiers (#22843) (Boshen) - 276b78b parser: Reject module-referencing imports/exports in a namespace body (#22836) (Boshen) - 842ed1c parser: Parse `class implements` with `implements` as the class name (#22801) (Boshen) ### ⚡ Performance - 7e3a567 parser: Reuse cached token kind in delimited-list loops (#22841) (Boshen) - 9e741c2 parser: Use peek_token instead of lookahead on the modifier path (#22842) (Boshen) - 9e496a7 semantic: Defer declare lookup for empty accessors (#22810) (camc314)
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Only compute whether the containing class is
declarewhen checking empty-body TypeScript accessors. Ordinary methods and overload signatures do not need that value, so the hot method path can avoid repeated containing-class lookups.