oxc-project__oxc/crates/oxc_isolated_declarations/tests/fixtures/expando-function-strip-internal.ts at codex/parser-grouped-expression-allocation - oxc-project__oxc - GetSkill.work

skills/oxc-project__oxc

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camc314 b846abc2a4 fix(isolated-declarations): handle ambient expando properties (#25655 )

## Summary

- treat value declarations in ambient namespaces as implicitly exported for expando-function validation
- preserve local versus exported namespace visibility to match TypeScript declaration merging
- add regression coverage for accepted ambient value declarations and rejected local or type-only declarations

## TypeScript compatibility

The regression fixture was checked with TypeScript 6.0.3. TypeScript and Oxc produce TS9023 only for the exported-function/local-namespace mismatch and the type-only namespace property.

Closes #24975

2026-08-17 02:25:03 +00:00

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 /** @internal */
 function functionDeclaration(): void {}
 functionDeclaration.property = 1;
 /** @internal */
 const variableDeclaration = (): void => {};
 variableDeclaration.property = 1;