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style: Move invalidation map into PerOriginCascadeData.

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Cameron McCormack 2017-08-09 10:43:07 +08:00
parent 77c4a42e5d
commit 16937ba7cd
4 changed files with 34 additions and 17 deletions
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34
components/style/stylist.rs
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@ -108,9 +108,6 @@ pub struct Stylist {
/// style rule appears in a stylesheet, needed to sort them by source order.
rules_source_order: u32,
/// The invalidation map for this document.
invalidation_map: InvalidationMap,
/// The attribute local names that appear in attribute selectors. Used
/// to avoid taking element snapshots when an irrelevant attribute changes.
/// (We don't bother storing the namespace, since namespaced attributes
@ -235,7 +232,6 @@ impl Stylist {
precomputed_pseudo_element_decls: PerPseudoElementMap::default(),
rules_source_order: 0,
rule_tree: RuleTree::new(),
invalidation_map: InvalidationMap::new(),
attribute_dependencies: NonCountingBloomFilter::new(),
style_attribute_dependency: false,
state_dependencies: ElementState::empty(),
@ -269,9 +265,23 @@ impl Stylist {
self.selectors_for_cache_revalidation.len()
}
/// Gets a reference to the invalidation map.
pub fn invalidation_map(&self) -> &InvalidationMap {
&self.invalidation_map
/// Returns the number of entries in invalidation maps.
pub fn num_invalidations(&self) -> usize {
self.cascade_data.iter_origins()
.map(|d| d.invalidation_map.len()).sum()
}
/// Invokes `f` with the `InvalidationMap` for each origin.
///
/// NOTE(heycam) This might be better as an `iter_invalidation_maps`, once
/// we have `impl trait` and can return that easily without bothering to
/// create a whole new iterator type.
pub fn each_invalidation_map<F>(&self, mut f: F)
where F: FnMut(&InvalidationMap)
{
for origin_cascade_data in self.cascade_data.iter_origins() {
f(&origin_cascade_data.invalidation_map)
}
}
/// Clear the stylist's state, effectively resetting it to more or less
@ -302,7 +312,6 @@ impl Stylist {
self.precomputed_pseudo_element_decls.clear();
self.rules_source_order = 0;
// We want to keep rule_tree around across stylist rebuilds.
self.invalidation_map.clear();
self.attribute_dependencies.clear();
self.style_attribute_dependency = false;
self.state_dependencies = ElementState::empty();
@ -497,7 +506,9 @@ impl Stylist {
map.insert(rule, self.quirks_mode);
self.invalidation_map.note_selector(selector, self.quirks_mode);
origin_cascade_data
.invalidation_map
.note_selector(selector, self.quirks_mode);
let mut visitor = StylistSelectorVisitor {
needs_revalidation: false,
passed_rightmost_selector: false,
@ -1670,6 +1681,9 @@ struct PerOriginCascadeData {
/// A map with all the animations at this `CascadeData`'s origin, indexed
/// by name.
animations: PrecomputedHashMap<Atom, KeyframesAnimation>,
/// The invalidation map for the rules at this origin.
invalidation_map: InvalidationMap,
}
impl PerOriginCascadeData {
@ -1678,6 +1692,7 @@ impl PerOriginCascadeData {
element_map: SelectorMap::new(),
pseudos_map: PerPseudoElementMap::default(),
animations: Default::default(),
invalidation_map: InvalidationMap::new(),
}
}
@ -1693,6 +1708,7 @@ impl PerOriginCascadeData {
self.element_map = SelectorMap::new();
self.pseudos_map = Default::default();
self.animations = Default::default();
self.invalidation_map.clear();
}
fn has_rules_for_pseudo(&self, pseudo: &PseudoElement) -> bool {