Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 4b4cd078895ca415b8eeba467d60b56c42c60bcc
      
https://github.com/WebKit/WebKit/commit/4b4cd078895ca415b8eeba467d60b56c42c60bcc
  Author: Sosuke Suzuki <[email protected]>
  Date:   2026-01-08 (Thu, 08 Jan 2026)

  Changed paths:
    A JSTests/microbenchmarks/matchall-bench.js
    M Source/JavaScriptCore/builtins/RegExpPrototype.js
    M Source/JavaScriptCore/runtime/JSRegExpStringIterator.h
    M Source/JavaScriptCore/runtime/RegExpPrototype.cpp
    M Source/JavaScriptCore/runtime/RegExpPrototypeInlines.h

  Log Message:
  -----------
  [JSC] Implement `RegExp#@@matchAll` in C++
https://bugs.webkit.org/show_bug.cgi?id=305096

Reviewed by Yusuke Suzuki.

This patch changes to implement `RegExp#@@matchAll` in C++.

                        TipOfTree                  Patched

matchall-bench       41.0811+-0.2157     ^     22.2720+-0.9164        ^ 
definitely 1.8445x faster

* JSTests/microbenchmarks/matchall-bench.js: Added.
* Source/JavaScriptCore/builtins/RegExpPrototype.js:
Remove the matchAll JavaScript builtin function.
(overriddenName.string_appeared_here.matchAll): Deleted.
* Source/JavaScriptCore/runtime/JSRegExpStringIterator.h:
* Source/JavaScriptCore/runtime/RegExpPrototype.cpp:
(JSC::RegExpPrototype::finishCreation): Register native matchAll function
instead of builtin.
(JSC::JSC_DEFINE_HOST_FUNCTION):
* Source/JavaScriptCore/runtime/RegExpPrototypeInlines.h:
(JSC::regExpMatchAllWathpointIsValid):

Canonical link: https://commits.webkit.org/305270@main



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