perf(parser): inline escaped keyword check in advance()

[Boshen]

Summary

Manually inline the escaped keyword check directly into advance() instead of calling a separate test_escaped_keyword() function. This eliminates function call overhead on every token advance.

[graphite-app]

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[Copilot]

Pull Request Overview

This PR optimizes the parser's token advance method by inlining an escaped keyword check and refactors BigInt literal handling to use separate token kinds instead of runtime string inspection.

• Inlined escaped keyword check directly into advance() method to eliminate function call overhead
• Added dedicated BigInt token kinds (DecimalBigInt, BinaryBigInt, etc.) for better type safety
• Moved error handling to a #[cold] function to optimize instruction layout for the common case

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 1 comment.

File	Description
crates/oxc_parser/src/cursor.rs	Inlines escaped keyword check in advance() and extracts error handling
crates/oxc_parser/src/lexer/kind.rs	Adds new BigInt token kinds and updates related methods
crates/oxc_parser/src/lexer/numeric.rs	Updates numeric parsing to use new BigInt token kinds
crates/oxc_parser/src/js/expression.rs	Refactors BigInt literal parsing to use dedicated token kinds

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[codspeed-hq]

CodSpeed Performance Report

Merging #14408 will not alter performance

_{Comparing perf/inline-escaped-keyword-check (1f5167a) with main (6e8d2f6)¹}

Summary

✅ 37 untouched

Footnotes

1. No successful run was found on main (ec02fe8) during the generation of this report, so 6e8d2f6 was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩

[overlookmotel]

Nice!

[Boshen]

Merge activity

• Oct 7, 11:13 AM UTC: The merge label '0-merge' was detected. This PR will be added to the Graphite merge queue once it meets the requirements.
• Oct 7, 11:13 AM UTC: Boshen added this pull request to the Graphite merge queue.
• Oct 7, 11:19 AM UTC: Merged by the Graphite merge queue.