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style: Rewrite restyling to split between resolving styles and handling changes.

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MozReview-Commit-ID: 4BzjbLbFebF
This commit is contained in:
Emilio Cobos Álvarez 2017-07-12 08:40:23 +02:00
parent 0ad2d39c30
commit c6d5dbbb01
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GPG key ID: 056B727BB9C1027C
8 changed files with 485 additions and 1500 deletions
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14
components/style/sharing/mod.rs
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@ -75,7 +75,7 @@ use dom::{TElement, SendElement};
use matching::{ChildCascadeRequirement, MatchMethods};
use properties::ComputedValues;
use selector_parser::RestyleDamage;
use selectors::matching::{ElementSelectorFlags, VisitedHandlingMode, StyleRelations};
use selectors::matching::{ElementSelectorFlags, VisitedHandlingMode};
use smallvec::SmallVec;
use std::mem;
use std::ops::Deref;
@ -494,11 +494,8 @@ impl<E: TElement> StyleSharingCandidateCache<E> {
pub fn insert_if_possible(&mut self,
element: &E,
style: &ComputedValues,
relations: StyleRelations,
mut validation_data: ValidationData,
validation_data: ValidationData,
dom_depth: usize) {
use selectors::matching::AFFECTED_BY_PRESENTATIONAL_HINTS;
let parent = match element.traversal_parent() {
Some(element) => element,
None => {
@ -525,13 +522,6 @@ impl<E: TElement> StyleSharingCandidateCache<E> {
return;
}
// Take advantage of the information we've learned during
// selector-matching.
if !relations.intersects(AFFECTED_BY_PRESENTATIONAL_HINTS) {
debug_assert!(validation_data.pres_hints.as_ref().map_or(true, |v| v.is_empty()));
validation_data.pres_hints = Some(SmallVec::new());
}
debug!("Inserting into cache: {:?} with parent {:?}", element, parent);
if self.dom_depth != dom_depth {