Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 5faef46275e1a37fc9924d252f3cd9e59fa8a7b4
https://github.com/WebKit/WebKit/commit/5faef46275e1a37fc9924d252f3cd9e59fa8a7b4
Author: Sosuke Suzuki <[email protected]>
Date: 2026-08-31 (Mon, 31 Aug 2026)
Changed paths:
A JSTests/wasm/stress/exception-constructor-options-argument.js
M Source/JavaScriptCore/wasm/js/WebAssemblyExceptionConstructor.cpp
Log Message:
-----------
[JSC] `WebAssembly.Exception` rejects null options and accepts non-object
options
https://bugs.webkit.org/show_bug.cgi?id=322948
Reviewed by Keith Miller.
The third argument of the WebAssembly.Exception constructor is a WebIDL
dictionary, so null must be treated like undefined and any other
non-object must be a TypeError. The constructor only skipped undefined,
so null threw while reading traceStack and a number or string was read
as an object.
Treat undefined and null as the empty dictionary and throw for other
non-objects.
Test: JSTests/wasm/stress/exception-constructor-options-argument.js
* JSTests/wasm/stress/exception-constructor-options-argument.js: Added.
(testUndefinedAndNull):
(testNonObjects):
* Source/JavaScriptCore/wasm/js/WebAssemblyExceptionConstructor.cpp:
(JSC::JSC_DEFINE_HOST_FUNCTION):
Canonical link: https://commits.webkit.org/320215@main
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