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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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3
components/style/context.rs
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@ -250,7 +250,8 @@ impl TraversalStatistics {
self.traversal_time_ms = (time::precise_time_s() - start) * 1000.0;
self.selectors = traversal.shared_context().stylist.num_selectors() as u32;
self.revalidation_selectors = traversal.shared_context().stylist.num_revalidation_selectors() as u32;
self.dependency_selectors = traversal.shared_context().stylist.num_dependencies() as u32;
self.dependency_selectors =
traversal.shared_context().stylist.invalidation_map().len() as u32;
self.declarations = traversal.shared_context().stylist.num_declarations() as u32;
self.stylist_rebuilds = traversal.shared_context().stylist.num_rebuilds() as u32;
}