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LibWeb: Cache the qualified layer name in CSSRule

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This makes cascade layer filtering take <2% of CPU time when loading
https://vercel.com instead of 30%.
This commit is contained in:
Andreas Kling
2024-09-07 11:45:50 +02:00
committed by Andreas Kling
parent 95bd0602ba
commit 44e4ea3d7a
4 changed files with 33 additions and 31 deletions
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3
Userland/Libraries/LibWeb/CSS/CSSLayerStatementRule.cpp
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@@ -42,10 +42,9 @@ String CSSLayerStatementRule::serialized() const
Vector<FlyString> CSSLayerStatementRule::internal_qualified_name_list(Badge<StyleComputer>) const
{
// TODO: Cache these?
Vector<FlyString> qualified_layer_names;
auto qualified_parent_layer_name = parent_layer_internal_qualified_name();
auto const& qualified_parent_layer_name = parent_layer_internal_qualified_name();
if (qualified_parent_layer_name.is_empty())
return m_name_list;