Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 60b2e2fb9e0c8380adc77739a7f94d8ad480dfad
https://github.com/WebKit/WebKit/commit/60b2e2fb9e0c8380adc77739a7f94d8ad480dfad
Author: Antti Koivisto <[email protected]>
Date: 2026-09-15 (Tue, 15 Sep 2026)
Changed paths:
M
LayoutTests/imported/w3c/web-platform-tests/css/css-values/tree-counting/calc-sibling-function-in-shadow-dom-expected.txt
M Source/WebCore/style/StyleBuilderState.cpp
Log Message:
-----------
[css-values-5] sibling-index() and sibling-count() are 1 for children of a
shadow root
https://bugs.webkit.org/show_bug.cgi?id=323966
rdar://187201634
Reviewed by Alan Baradlay.
Count correctly in shadow tree root.
*
LayoutTests/imported/w3c/web-platform-tests/css/css-values/tree-counting/calc-sibling-function-in-shadow-dom-expected.txt:
* Source/WebCore/style/StyleBuilderState.cpp:
(WebCore::Style::markTreeCountingFunctionUsed):
Also factor into a function and fix marking.
(WebCore::Style::isLooselyMatchedTreeScopedReference):
(WebCore::Style::BuilderState::siblingCount):
(WebCore::Style::BuilderState::siblingIndex):
Use the ElementTraversal counting path also for shadow root children.
Canonical link: https://commits.webkit.org/321182@main
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