Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 89c4bdc2aba0b1f857a7a954ae04beda5acf045f
https://github.com/WebKit/WebKit/commit/89c4bdc2aba0b1f857a7a954ae04beda5acf045f
Author: Ryosuke Niwa <[email protected]>
Date: 2026-03-16 (Mon, 16 Mar 2026)
Changed paths:
M Source/WebCore/page/ResizeObserver.cpp
M Source/WebCore/page/ResizeObserver.h
Log Message:
-----------
ResizeObserver is still sluggish over time
https://bugs.webkit.org/show_bug.cgi?id=310050
Reviewed by Geoffrey Garen.
Use a combination of HashMap and ListHashSet to further optimize ResizeObserver.
No new tests since there should be no behavioral changes other than the
improved perf.
* Source/WebCore/page/ResizeObserver.cpp:
(WebCore::ResizeObserver::observeInternal):
(WebCore::ResizeObserver::removeAllTargets):
(WebCore::ResizeObserver::removeObservation):
(WebCore::ResizeObserver::resetObservationSize):
(WebCore::ResizeObserver::observationForElement): Deleted.
* Source/WebCore/page/ResizeObserver.h:
(WebCore::ResizeObserver::ResizeObservationHashFunctions::hash):
(WebCore::ResizeObserver::ResizeObservationHashFunctions::equal):
Canonical link: https://commits.webkit.org/309376@main
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