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script: Fix O(n^2) dirty bit marking when setting style on all immediate

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children of a node.
This commit is contained in:
Patrick Walton 2015-03-27 19:00:50 -07:00
parent 55f9bd5d6f
commit 0fcaa3ce03
1 changed files with 9 additions and 7 deletions
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16
components/script/dom/node.rs
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@ -700,14 +700,16 @@ impl<'a> NodeHelpers<'a> for JSRef<'a, Node> {
//
// TODO(cgaebel): This is a very conservative way to account for sibling
// selectors. Maybe we can do something smarter in the future.
let parent =
match self.parent_node() {
None => return,
Some(parent) => parent,
};
if !self.get_has_dirty_siblings() {
let parent =
match self.parent_node() {
None => return,
Some(parent) => parent,
};
for sibling in parent.root().r().children() {
sibling.set_has_dirty_siblings(true);
for sibling in parent.root().r().children() {
sibling.set_has_dirty_siblings(true);
}
}
// 4. Dirty ancestors.