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Dunqing 8ab883afaa fix(codegen): preserve property key annotations (#25766)
`@__KEY__` and `#__KEY__` are currently treated as normal comments. Codegen can drop them before a later property-mangling pass. The property may then be renamed while the annotated string keeps its old name.

This classifies the marker as a property-key annotation. Codegen keeps it next to string and no-substitution template literals when annotation comments are enabled, and the property mangler reads that classification instead of scanning source text. Final output still follows the normal comment options, so whitespace-minified or annotation-disabled output removes the marker.

## Example

Input:

```js
const object = { _field: 1 };
const key = /* #__KEY__ */ "_field";
object[key];
```

Before, an intermediate codegen pass could remove the marker:

```js
const object = { _field: 1 };
const key = "_field";
object[key];
```

After, the marker survives for the later property-mangling pass.

Verified with the affected crate suites, `just minsize`, workspace lint, docs, AST generation, and independent review. `just ready` is only blocked locally by existing Node-version and terminal-color snapshot differences.

Implemented with AI assistance (OpenAI Codex). I reviewed and understand the changes and remain responsible for this contribution under the repository AI usage policy.
2026-08-17 09:23:04 +00:00
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Oxc Lexer

A spec compliant standalone lexer for JS/JSX/TS.

Overview

  • Test262 compliant.
  • TS/JSX Working
  • UTF-8 validation costs 0.15CPB (Cycles per byte), optional parameter.
  • SIMD in x86_64 AVX2, Scalar for every other platform currently (in progress).
  • Regex vs Division cases should be handled even in pathological cases.