Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: da75c48c453bb822707d5873b6d962c62582138a
https://github.com/WebKit/WebKit/commit/da75c48c453bb822707d5873b6d962c62582138a
Author: Yusuke Suzuki <[email protected]>
Date: 2026-09-19 (Sat, 19 Sep 2026)
Changed paths:
A JSTests/stress/array-buffer-slice-species-constructor.js
M JSTests/test262/expectations.yaml
M Source/JavaScriptCore/runtime/JSArrayBufferPrototype.cpp
M Source/JavaScriptCore/runtime/JSArrayBufferPrototypeInlines.h
Log Message:
-----------
[JSC] Fix ArrayBuffer.prototype.slice's SpeciesConstructor
https://bugs.webkit.org/show_bug.cgi?id=324619
rdar://187853060
Reviewed by Sosuke Suzuki.
Fix two issues.
1. speciesWatchpointIsValid should be used only when thisObject's realm
is the current lexical realm. This is already done in TypedArray case.
2. @@species was never read when O.constructor was any realm's ArrayBuffer
constructor in the slow path.
Test: JSTests/stress/array-buffer-slice-species-constructor.js
* JSTests/stress/array-buffer-slice-species-constructor.js: Added.
(shouldBe):
(Subclass):
(get return):
* JSTests/test262/expectations.yaml:
* Source/JavaScriptCore/runtime/JSArrayBufferPrototype.cpp:
(JSC::arrayBufferSpeciesConstructorSlow):
* Source/JavaScriptCore/runtime/JSArrayBufferPrototypeInlines.h:
(JSC::speciesWatchpointIsValid):
(JSC::arrayBufferSpeciesConstructor):
Canonical link: https://commits.webkit.org/321451@main
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