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style: Implement a more fine-grained invalidation method.

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This commit also removes the old restyle_hints module and splits it into
multiple modules under components/style/invalidation/element/.

The basic approach is to walk down the tree using compound selectors as needed,
in order to do as little selector-matching as possible.

Bug: 1368240
MozReview-Commit-ID: 2YO8fKFygZI
This commit is contained in:
Emilio Cobos Álvarez 2017-06-13 11:03:06 +02:00
parent fd10729941
commit cb06375fe2
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GPG key ID: 056B727BB9C1027C
21 changed files with 1673 additions and 1486 deletions
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14
components/style/selector_map.rs
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@ -331,7 +331,7 @@ impl<T: SelectorMapEntry> SelectorMap<T> {
pub fn lookup_with_additional<E, F>(&self,
element: E,
quirks_mode: QuirksMode,
additional_id: Option<Atom>,
additional_id: Option<&Atom>,
additional_classes: &[Atom],
f: &mut F)
-> bool
@ -345,7 +345,7 @@ impl<T: SelectorMapEntry> SelectorMap<T> {
// Check the additional id.
if let Some(id) = additional_id {
if let Some(v) = self.id_hash.get(&id, quirks_mode) {
if let Some(v) = self.id_hash.get(id, quirks_mode) {
for entry in v.iter() {
if !f(&entry) {
return false;
@ -468,6 +468,16 @@ impl<V> MaybeCaseInsensitiveHashMap<Atom, V> {
self.0.entry(key)
}
/// HashMap::iter
pub fn iter(&self) -> hash_map::Iter<Atom, V> {
self.0.iter()
}
/// HashMap::clear
pub fn clear(&mut self) {
self.0.clear()
}
/// HashMap::get
pub fn get(&self, key: &Atom, quirks_mode: QuirksMode) -> Option<&V> {
if quirks_mode == QuirksMode::Quirks {