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style: Avoid some allocations in selector serialization.

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The allocations in display_to_css_identifier show up in the profiles of
bug 1675628.

Differential Revision: https://phabricator.services.mozilla.com/D97856
This commit is contained in:
Emilio Cobos Álvarez 2020-11-22 01:02:22 +00:00
parent e9c1d490a9
commit 484cf5771b
2 changed files with 51 additions and 53 deletions
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8
components/selectors/tree.rs
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@ -113,7 +113,7 @@ pub trait Element: Sized + Clone + Debug {
fn has_class(
&self,
name: &<Self::Impl as SelectorImpl>::ClassName,
name: &<Self::Impl as SelectorImpl>::Identifier,
case_sensitivity: CaseSensitivity,
) -> bool;
@ -121,10 +121,10 @@ pub trait Element: Sized + Clone + Debug {
/// direction, that is, in an outer-tree -> inner-tree direction.
fn imported_part(
&self,
name: &<Self::Impl as SelectorImpl>::PartName,
) -> Option<<Self::Impl as SelectorImpl>::PartName>;
name: &<Self::Impl as SelectorImpl>::Identifier,
) -> Option<<Self::Impl as SelectorImpl>::Identifier>;
fn is_part(&self, name: &<Self::Impl as SelectorImpl>::PartName) -> bool;
fn is_part(&self, name: &<Self::Impl as SelectorImpl>::Identifier) -> bool;
/// Returns whether this element matches `:empty`.
///