Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 50359d9c2caefaf74470bb65798b902460ee4376
https://github.com/WebKit/WebKit/commit/50359d9c2caefaf74470bb65798b902460ee4376
Author: Youenn Fablet <[email protected]>
Date: 2026-02-03 (Tue, 03 Feb 2026)
Changed paths:
M LayoutTests/streams/transfer-internal-expected.txt
M LayoutTests/streams/transfer-internal.html
M Source/WebCore/Modules/filesystem/FileSystemWritableFileStreamSink.cpp
M Source/WebCore/Modules/filesystem/FileSystemWritableFileStreamSink.h
M Source/WebCore/Modules/mediastream/VideoTrackGenerator.cpp
M Source/WebCore/Modules/mediastream/VideoTrackGenerator.h
M Source/WebCore/Modules/streams/StreamTransferUtilities.cpp
M Source/WebCore/Modules/streams/StreamTransferUtilities.h
M Source/WebCore/Modules/streams/WritableStream.idl
A Source/WebCore/Modules/streams/WritableStreamSink.cpp
M Source/WebCore/Modules/streams/WritableStreamSink.h
M Source/WebCore/Modules/streams/WritableStreamSink.idl
M Source/WebCore/Modules/webtransport/DatagramSink.h
M Source/WebCore/Modules/webtransport/WebTransportSendStreamSink.cpp
M Source/WebCore/Modules/webtransport/WebTransportSendStreamSink.h
M Source/WebCore/Sources.txt
M Source/WebCore/WebCore.xcodeproj/project.pbxproj
M Source/WebCore/testing/Internals.cpp
M Source/WebCore/testing/Internals.h
M Source/WebCore/testing/Internals.idl
Log Message:
-----------
Implement SetUpCrossRealTransformWritable
rdar://169174026
https://bugs.webkit.org/show_bug.cgi?id=306518
Reviewed by Chris Dumez.
Follow the spec by introducing
https://streams.spec.whatwg.org/#abstract-opdef-setupcrossrealmtransformwritable
and related methods.
This will be useful to implement transferring of readable and writable streams.
To add sufficient support, we have to beef up WritableStreamSink.
In particular, we have to be able to support asynchronous aborting.
We do this by updating WritableStreamSink IDL.
We also have to expose a way to error the writable from the sink.
We add support for exposing the controller given by WritableStream to its sink
at start time.
We can then call errorIfNeeded on the controller whenever the
WritableStreamSink is start.
We implement this support like we do for ReadableStreamSource.
The controller is kept alive for the lifetime of the JSWritableStreamSink.
The JSWritableStreamSink is kept alive for the lifetime of its
InternalWritableStream, which is kept alive by its WritableStream as a
DOMGuarded object.
Covered by added API test, using new internal API.
Canonical link: https://commits.webkit.org/306689@main
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