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Semantics for ProtectedHashMap.

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MozReview-Commit-ID: K0m65uZi7iw
This commit is contained in:
Bobby Holley 2017-09-26 12:33:21 -07:00
parent e2c0ca5110
commit 98f370130d
9 changed files with 311 additions and 8 deletions
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35
components/style/stylist.rs
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@ -1870,6 +1870,32 @@ impl CascadeData {
}
}
#[cfg(feature = "gecko")]
fn begin_mutation(&mut self, rebuild_kind: &SheetRebuildKind) {
self.element_map.begin_mutation();
self.pseudos_map.for_each(|m| m.begin_mutation());
if rebuild_kind.should_rebuild_invalidation() {
self.invalidation_map.begin_mutation();
self.selectors_for_cache_revalidation.begin_mutation();
}
}
#[cfg(feature = "servo")]
fn begin_mutation(&mut self, _: &SheetRebuildKind) {}
#[cfg(feature = "gecko")]
fn end_mutation(&mut self, rebuild_kind: &SheetRebuildKind) {
self.element_map.end_mutation();
self.pseudos_map.for_each(|m| m.end_mutation());
if rebuild_kind.should_rebuild_invalidation() {
self.invalidation_map.end_mutation();
self.selectors_for_cache_revalidation.end_mutation();
}
}
#[cfg(feature = "servo")]
fn end_mutation(&mut self, _: &SheetRebuildKind) {}
/// Collects all the applicable media query results into `results`.
///
/// This duplicates part of the logic in `add_stylesheet`, which is
@ -1933,6 +1959,7 @@ impl CascadeData {
self.effective_media_query_results.saw_effective(stylesheet);
}
self.begin_mutation(&rebuild_kind);
for rule in stylesheet.effective_rules(device, guard) {
match *rule {
CssRule::Style(ref locked) => {
@ -1969,8 +1996,11 @@ impl CascadeData {
None => &mut self.element_map,
Some(pseudo) => {
self.pseudos_map
.get_or_insert_with(&pseudo.canonical(), || Box::new(SelectorMap::new()))
.expect("Unexpected tree pseudo-element?")
.get_or_insert_with(&pseudo.canonical(), || {
let mut map = Box::new(SelectorMap::new());
map.begin_mutation();
map
}).expect("Unexpected tree pseudo-element?")
}
};
@ -2064,6 +2094,7 @@ impl CascadeData {
_ => {}
}
}
self.end_mutation(&rebuild_kind);
Ok(())
}