Mirrors/servo
1
0
Fork 0
mirror of https://github.com/servo/servo.git synced 2025-08-06 06:00:15 +01:00
Code Issues Projects Releases Packages Wiki Activity

style: Shrink maps if needed after stylist rebuilds

Browse source 
Hashbrown grows a lot sometimes making us waste a lot of memory. Shrink
some of these maps after CascadeData rebuild / stylesheet collection
invalidation.

Differential Revision: https://phabricator.services.mozilla.com/D134716
This commit is contained in:
Emilio Cobos Álvarez 2023-06-06 23:27:20 +02:00 • committed by Oriol Brufau
parent f9610e5898
commit fcc55f2156
6 changed files with 122 additions and 17 deletions
Download patch file Download diff file Expand all files Collapse all files

10
components/style/invalidation/element/invalidation_map.rs
View file

@ -11,7 +11,7 @@ use crate::selector_map::{
};
use crate::selector_parser::SelectorImpl;
use crate::AllocErr;
use crate::{Atom, LocalName, Namespace};
use crate::{Atom, LocalName, Namespace, ShrinkIfNeeded};
use selectors::attr::NamespaceConstraint;
use selectors::parser::{Combinator, Component};
use selectors::parser::{Selector, SelectorIter};
@ -237,6 +237,14 @@ impl InvalidationMap {
self.other_attribute_affecting_selectors.clear();
}
/// Shrink the capacity of hash maps if needed.
pub fn shrink_if_needed(&mut self) {
self.class_to_selector.shrink_if_needed();
self.id_to_selector.shrink_if_needed();
self.state_affecting_selectors.shrink_if_needed();
self.other_attribute_affecting_selectors.shrink_if_needed();
}
/// Adds a selector to this `InvalidationMap`. Returns Err(..) to
/// signify OOM.
pub fn note_selector(