Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 81abbdb522434572239e6f2fb13ef6df74b72fc9
https://github.com/WebKit/WebKit/commit/81abbdb522434572239e6f2fb13ef6df74b72fc9
Author: Andrew Fryer <[email protected]>
Date: 2026-01-21 (Wed, 21 Jan 2026)
Changed paths:
M Source/WebCore/dom/ContainerNode.cpp
Log Message:
-----------
Avoid redoing DOM checks when version unchanged
https://bugs.webkit.org/show_bug.cgi?id=305565
rdar://168227181
Reviewed by Ryosuke Niwa.
In insertBefore, replaceChild, appendChildWithoutPreInsertionValidityCheck,
and insertChildrenBeforeWithoutPreInsertionValidityCheck, we validate
nodes' structure and types and then perform several DOM mutations. Since
DOM mutation event handlers might themselves mutate the DOM, we need to
redo validation in between mutations. Instead of always redoing
mutations, only redo them when the dom version has changed.
* Source/WebCore/dom/ContainerNode.cpp:
(WebCore::ContainerNode::insertBefore):
(WebCore::ContainerNode::replaceChild):
(WebCore::ContainerNode::appendChildWithoutPreInsertionValidityCheck):
(WebCore::ContainerNode::insertChildrenBeforeWithoutPreInsertionValidityCheck):
Canonical link: https://commits.webkit.org/305963@main
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