Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: d2cffa902fbaec6a7b4ef196aab9c7e9a4e61a2e
https://github.com/WebKit/WebKit/commit/d2cffa902fbaec6a7b4ef196aab9c7e9a4e61a2e
Author: Keith Miller <[email protected]>
Date: 2026-09-14 (Mon, 14 Sep 2026)
Changed paths:
M Source/JavaScriptCore/jsc.cpp
M Source/JavaScriptCore/runtime/ArrayBuffer.cpp
M Source/JavaScriptCore/runtime/ArrayBuffer.h
M Source/JavaScriptCore/runtime/CloneDeserializerBase.h
M Source/JavaScriptCore/runtime/CloneSerializerBase.h
M Source/JavaScriptCore/runtime/StructuredCloneTags.h
M Source/JavaScriptCore/runtime/TypedArrayType.h
M Source/WebCore/bindings/js/SerializedScriptValue.cpp
M Source/WebCore/bindings/js/SerializedScriptValueInternals.h
Log Message:
-----------
[JSC] StructuredCloning code should include ArrayBuffers
https://bugs.webkit.org/show_bug.cgi?id=324104
rdar://187319328
Reviewed by Yusuke Suzuki.
Move the remaining, ArrayBuffer/WebAssembly.Memory serialization /
deserialization code into JSC. To do this JSC has to have a concept of
SideChannels for cloning. Since not every context allows all these
side channels, JSC's cloning now has a few more embedder hooks:
```
agentClusterID()
allowsSharedMemorySerialization()
allowsWasmModuleSerialization()
toJSArrayBuffer()
```
This patch also replaces the custom cloning code in $262.agent with
structured cloning. test262 only requires support for a
SharedArrayBuffer but supporting the full structured cloning means
less duplicated logic. In a follow up patch, I plan to add support for
the core of the `Worker` API.
No new tests, covered by existing tests.
Canonical link: https://commits.webkit.org/321077@main
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