Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 59d0c6060bde2e375f299e379872bde8534e99dd
https://github.com/WebKit/WebKit/commit/59d0c6060bde2e375f299e379872bde8534e99dd
Author: Chris Dumez <[email protected]>
Date: 2026-04-03 (Fri, 03 Apr 2026)
Changed paths:
M Source/WebCore/css/SelectorFilter.cpp
Log Message:
-----------
SelectorFilter::initializeParentStack() should not defeat inline vector
storage
https://bugs.webkit.org/show_bug.cgi?id=311411
Reviewed by Anne van Kesteren.
m_parentStack is a Vector with inline capacity of 20. The previous code called
reserveCapacity(capacity() + ancestors.size()), which always added 20 (the
inline
capacity) to the ancestor count, forcing a heap allocation even for shallow DOM
trees
that would fit entirely in inline storage. Just reserve ancestors.size()
instead, which
is a no-op when the count fits within the existing inline capacity.
* Source/WebCore/css/SelectorFilter.cpp:
(WebCore::SelectorFilter::initializeParentStack):
Canonical link: https://commits.webkit.org/310514@main
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