refactor(ast): implement RegExpLiteral::parse_pattern

[sapphi-red]

Moved the parse function to oxc_ast from oxc_transformer to use it from the minifier.

[sapphi-red]

• feat(minifier): constant fold RegExp.prototype.source #13472
• feat(regular_expression): detect regex pattern modifiers usage #13471
• fix(regular_expression): detect usage of unsupported syntax recursively #13470
• fix(regular_expression): don't lower capture groups that are not named ones #13469
• refactor(regular_expression): extract has_unsupported_regular_expression_pattern #13468
• refactor(ast): implement RegExpLiteral::parse_pattern #13467 👈 (View in Graphite)
• main

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[Copilot]

Pull Request Overview

This PR refactors the regular expression pattern parsing functionality by moving the try_parse_pattern function from oxc_transformer to oxc_ast as a method on RegExpLiteral. This enables the minifier to use the same pattern parsing logic.

Key Changes:

• Adds parse_pattern method to RegExpLiteral in oxc_ast
• Removes the standalone try_parse_pattern function from oxc_transformer
• Updates the LiteralParser to use separate lifetimes for pattern and flags text

Reviewed Changes

Copilot reviewed 4 out of 5 changed files in this pull request and generated 1 comment.

File	Description
crates/oxc_transformer/src/regexp/mod.rs	Removed try_parse_pattern function and updated call site to use new method
crates/oxc_regular_expression/src/parser/parser_impl.rs	Added separate lifetime parameter for flags text in LiteralParser
crates/oxc_ast/src/ast_impl/literal.rs	Added parse_pattern method to RegExpLiteral
crates/oxc_ast/Cargo.toml	Added oxc_diagnostics dependency

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[codspeed-hq]

CodSpeed Instrumentation Performance Report

Merging #13467 will not alter performance

_{Comparing 08-31-refactor_ast_implement_regexpliteral_parse_pattern_ (14c40fd) with main (946669b)¹}

Summary

✅ 37 untouched benchmarks

Footnotes

1. No successful run was found on main (14c40fd) during the generation of this report, so 946669b was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩

[graphite-app]

Merge activity

• Aug 31, 3:09 PM UTC: Boshen added this pull request to the Graphite merge queue.
• Aug 31, 3:21 PM UTC: Merged by the Graphite merge queue.