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stylo: Don't ignore visited state when deciding to share style contexts

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This commit is contained in:
Manish Goregaokar 2017-07-18 12:40:01 -07:00
parent eb26194dd1
commit 8d7a368377
2 changed files with 4 additions and 16 deletions
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15
components/style/sharing/checks.rs
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@ -10,7 +10,6 @@ use Atom;
use bloom::StyleBloom;
use context::{SelectorFlagsMap, SharedStyleContext};
use dom::TElement;
use element_state::*;
use sharing::{StyleSharingCandidate, StyleSharingTarget};
use stylearc::Arc;
@ -68,20 +67,6 @@ pub fn have_same_class<E>(target: &mut StyleSharingTarget<E>,
target.class_list() == candidate.class_list()
}
/// Compare element and candidate state, but ignore visitedness. Styles don't
/// actually changed based on visitedness (since both possibilities are computed
/// up front), so it's safe to share styles if visitedness differs.
pub fn have_same_state_ignoring_visitedness<E>(element: E,
candidate: &StyleSharingCandidate<E>)
-> bool
where E: TElement,
{
let state_mask = !IN_VISITED_OR_UNVISITED_STATE;
let state = element.get_state() & state_mask;
let candidate_state = candidate.element.get_state() & state_mask;
state == candidate_state
}
/// Whether a given element and a candidate match the same set of "revalidation"
/// selectors.
///