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style: layout: Allow a lazy pseudo-element implementation in Servo.

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This commit is contained in:
Emilio Cobos Álvarez 2016-05-03 18:50:25 +02:00
parent 18c1fee3c7
commit 028f9b6cd2
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6 changed files with 172 additions and 57 deletions
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7
components/style/selector_matching.rs
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@ -5,7 +5,7 @@
// For lazy_static
#![allow(unsafe_code)]
use dom::TElement;
use dom::PresentationalHintsSynthetizer;
use element_state::*;
use error_reporting::{ParseErrorReporter, StdoutErrorReporter};
use media_queries::{Device, MediaType};
@ -281,7 +281,8 @@ impl<Impl: SelectorImplExt> Stylist<Impl> {
pseudo: &Impl::PseudoElement,
parent: &Arc<Impl::ComputedValues>)
-> Option<Arc<Impl::ComputedValues>>
where E: Element<Impl=Impl> + TElement {
where E: Element<Impl=Impl> +
PresentationalHintsSynthetizer {
debug_assert!(Impl::pseudo_element_cascade_type(pseudo).is_lazy());
if self.pseudos_map.get(pseudo).is_none() {
return None;
@ -358,7 +359,7 @@ impl<Impl: SelectorImplExt> Stylist<Impl> {
pseudo_element: Option<&Impl::PseudoElement>,
applicable_declarations: &mut V)
-> bool
where E: Element<Impl=Impl> + TElement,
where E: Element<Impl=Impl> + PresentationalHintsSynthetizer,
V: VecLike<DeclarationBlock> {
assert!(!self.is_device_dirty);
assert!(style_attribute.is_none() || pseudo_element.is_none(),