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style: Avoid branching on the origin for each selector when inserting in the cascade data.

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This is on top of #17990, and it's intended to help with bug 1386045.
This commit is contained in:
Emilio Cobos Álvarez 2017-08-07 10:47:12 +02:00
parent cc1aab35ea
commit 7ee4b3f881
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GPG key ID: 056B727BB9C1027C
1 changed files with 5 additions and 2 deletions
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7
components/style/stylist.rs
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@ -458,6 +458,10 @@ impl Stylist {
self.effective_media_query_results.saw_effective(stylesheet);
let origin = stylesheet.origin(guard);
let origin_cascade_data =
self.cascade_data.borrow_mut_for_origin(&origin);
for rule in stylesheet.effective_rules(&self.device, guard) {
match *rule {
CssRule::Style(ref locked) => {
@ -469,8 +473,7 @@ impl Stylist {
let hashes =
AncestorHashes::new(&selector, self.quirks_mode);
self.cascade_data
.borrow_mut_for_origin(&origin)
origin_cascade_data
.borrow_mut_for_pseudo_or_insert(selector.pseudo_element())
.insert(
Rule::new(selector.clone(),