Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 056a4b83b63f8dc0051d764f3ceb4c0455d2b376
https://github.com/WebKit/WebKit/commit/056a4b83b63f8dc0051d764f3ceb4c0455d2b376
Author: Tim Nguyen <[email protected]>
Date: 2026-09-22 (Tue, 22 Sep 2026)
Changed paths:
M Source/WebCore/css/CSSCounterStyleRegistry.cpp
M Source/WebCore/css/CSSCounterStyleRegistry.h
M Source/WebCore/rendering/RenderListOutsideMarker.cpp
Log Message:
-----------
[CSS symbols() function] Memoize counter styles
https://bugs.webkit.org/show_bug.cgi?id=324794
rdar://188057244
Reviewed by Anne van Kesteren.
Avoid re-creating the CSSRegisteredCounterStyle object for symbols() functions
by memo-izing them like we do for normal counter styles.
This saves the cost of having to recreate them when rendering every element
that uses the same symbols() function.
For now, use a Vector of pairs to avoid having to define HashTraits for
SymbolsFunction.
This is cheap because we don't expect a huge number of different symbols()
functions to be used on the same page.
Rename CounterStyleMap to NamedCounterStyleMap to differentiate it from the
SymbolsFunction map.
* Source/WebCore/css/CSSCounterStyleRegistry.cpp:
(WebCore::CSSCounterStyleRegistry::resolvedCounterStyle):
(WebCore::CSSCounterStyleRegistry::resolveExtendsReference):
(WebCore::CSSCounterStyleRegistry::resolveFallbackReference):
(WebCore::CSSCounterStyleRegistry::counterStyle):
(WebCore::CSSCounterStyleRegistry::userAgentCounterStyles):
(WebCore::CSSCounterStyleRegistry::clearAuthorCounterStyles):
* Source/WebCore/css/CSSCounterStyleRegistry.h:
* Source/WebCore/rendering/RenderListOutsideMarker.cpp:
(WebCore::listMarkerTextContent):
Canonical link: https://commits.webkit.org/321622@main
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