Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 2202493e7f18159a4d6283ee81a55b64f3a3ae74
      
https://github.com/WebKit/WebKit/commit/2202493e7f18159a4d6283ee81a55b64f3a3ae74
  Author: Youenn Fablet <[email protected]>
  Date:   2026-02-01 (Sun, 01 Feb 2026)

  Changed paths:
    M 
LayoutTests/imported/w3c/web-platform-tests/streams/idlharness.any-expected.txt
    M 
LayoutTests/imported/w3c/web-platform-tests/streams/idlharness.any.serviceworker-expected.txt
    M 
LayoutTests/imported/w3c/web-platform-tests/streams/idlharness.any.sharedworker-expected.txt
    M 
LayoutTests/imported/w3c/web-platform-tests/streams/idlharness.any.worker-expected.txt
    M 
LayoutTests/imported/w3c/web-platform-tests/streams/readable-streams/from.any-expected.txt
    M 
LayoutTests/imported/w3c/web-platform-tests/streams/readable-streams/from.any.serviceworker-expected.txt
    M 
LayoutTests/imported/w3c/web-platform-tests/streams/readable-streams/from.any.sharedworker-expected.txt
    M 
LayoutTests/imported/w3c/web-platform-tests/streams/readable-streams/from.any.worker-expected.txt
    M Source/JavaScriptCore/runtime/IteratorOperations.cpp
    M Source/JavaScriptCore/runtime/IteratorOperations.h
    M Source/WTF/Scripts/Preferences/UnifiedWebPreferences.yaml
    M Source/WebCore/Modules/streams/ReadableStream.cpp
    M Source/WebCore/Modules/streams/ReadableStream.h
    M Source/WebCore/Modules/streams/ReadableStream.idl
    M Source/WebCore/Modules/streams/ReadableStreamSource.cpp
    M Source/WebCore/Modules/streams/ReadableStreamSource.h
    M Source/WebCore/bindings/js/DOMAsyncIterator.cpp

  Log Message:
  -----------
  Add basic ReadableStream.from support
rdar://169090253
https://bugs.webkit.org/show_bug.cgi?id=306423

Reviewed by Yusuke Suzuki.

We implement https://streams.spec.whatwg.org/#readable-stream-from-iterable and 
expose ReadableStream.from behind a feature flag.
This patch implements support using DOMAsyncIterator, but does not yet 
implement cancel support, which will be done in a follow-up PR.

Covered by rebased WPT tests.

Canonical link: https://commits.webkit.org/306599@main



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