Andreas Kling e243e146de LibJS+LibRegex: Switch RegExp over to the Rust engine ...

Switch LibJS `RegExp` over to the Rust-backed `ECMAScriptRegex` APIs.

Route `new RegExp()`, regex literals, and the RegExp builtins through
the new compile and exec APIs, and stop re-validating patterns with the
deleted C++ parser on the way in. Preserve the observable error
behavior by carrying structured compile errors and backtracking-limit
failures across the FFI boundary. Cache compiled regex state and named
capture metadata on `RegExpObject` in the new representation.

Use the new API surface to simplify and speed up the builtin paths too:
share `exec_internal`, cache compiled regex pointers, keep the legacy
RegExp statics lazy, run global replace through batch `find_all`, and
optimize replace, test, split, and String helper paths. Add regression
tests for those JavaScript-visible paths.

2026-03-27 17:32:19 +01:00

148 KiB

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