Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 6376164b58fe81dd7d23f6c9e5722fc31572c7fd
      
https://github.com/WebKit/WebKit/commit/6376164b58fe81dd7d23f6c9e5722fc31572c7fd
  Author: Tetsuharu Ohzeki <[email protected]>
  Date:   2025-12-23 (Tue, 23 Dec 2025)

  Changed paths:
    A 
JSTests/wasm/stress/exception-thrown-out-of-wasm-integration-error-is-error.js
    M Source/JavaScriptCore/wasm/js/JSWebAssemblyException.cpp

  Log Message:
  -----------
  [JSC] Error.isError(WebAssembly.Exception) should be `false`
https://bugs.webkit.org/show_bug.cgi?id=304410

Reviewed by Yusuke Suzuki and Sosuke Suzuki.

According to the spec discussion, the current `WebAssembly.Exception` does not 
have `[[ErrorData]]` semantically.
So `Error.isError(WebAssembly.Exception)` should be `false`.

- https://github.com/WebAssembly/spec/issues/1914
- https://webassembly.github.io/spec/js-api/#exceptions

Test: 
JSTests/wasm/stress/exception-thrown-out-of-wasm-integration-error-is-error.js
* 
JSTests/wasm/stress/exception-thrown-out-of-wasm-integration-error-is-error.js: 
Added.
(import.Builder.from.string_appeared_here.import.as.assert.from.string_appeared_here.catch):
* Source/JavaScriptCore/wasm/js/JSWebAssemblyException.cpp:
(JSC::JSWebAssemblyException::createStructure):

Canonical link: https://commits.webkit.org/304917@main



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