Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: c16ca1954e5c440176429e8beac18895637eed0b
https://github.com/WebKit/WebKit/commit/c16ca1954e5c440176429e8beac18895637eed0b
Author: Yijia Huang <[email protected]>
Date: 2023-09-28 (Thu, 28 Sep 2023)
Changed paths:
M JSTests/stress/get-arguments-length-fast.js
M Source/JavaScriptCore/parser/ASTBuilder.h
Log Message:
-----------
REGRESSION(268480@main): test/language/arguments-object/S10.6_A5_T3.js
test262 test is failing
https://bugs.webkit.org/show_bug.cgi?id=262315
rdar://116187196
Reviewed by Yusuke Suzuki.
Previously, we introduced a fast path for getting `arguments.length`
by retrieving `argumentCountIncludingThis` from CallFrame (268480@main).
However, we should disable the fast path when `delete arguments.length`
since it modifies `arguments`.
* JSTests/stress/get-arguments-length-fast.js:
(deleteArgumentsLength):
* Source/JavaScriptCore/parser/ASTBuilder.h:
(JSC::ASTBuilder::makeDeleteNode):
Canonical link: https://commits.webkit.org/268601@main
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