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Store style system options in the global style data and shared style context.

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I wanted to add an environmental variable to disable the style sharing
cache for gecko, but the current pattern involves lazy_static!, which
involves an atomic operation on lookup, which is a bit hot to do each
time we try to share styles. This makes that work happen once per
process.
This commit is contained in:
Bobby Holley 2017-04-12 14:19:06 +08:00
parent 3c5a21ebf3
commit dc5dbd5542
7 changed files with 66 additions and 50 deletions
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3
components/style/sequential.rs
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@ -6,7 +6,6 @@
#![deny(missing_docs)]
use context::TraversalStatistics;
use dom::{TElement, TNode};
use std::borrow::BorrowMut;
use std::collections::VecDeque;
@ -22,7 +21,7 @@ pub fn traverse_dom<E, D>(traversal: &D,
where E: TElement,
D: DomTraversal<E>,
{
let dump_stats = TraversalStatistics::should_dump();
let dump_stats = traversal.shared_context().options.dump_style_statistics;
let start_time = if dump_stats { Some(time::precise_time_s()) } else { None };
debug_assert!(!traversal.is_parallel());