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style: Add a TLS-based style struct caching mechanism.

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Emilio Cobos Álvarez 2017-08-23 20:04:11 +08:00 • committed by Cameron McCormack
parent 298b1363ff
commit c34c92e904
18 changed files with 278 additions and 13 deletions
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4
components/style/servo/media_queries.rs
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@ -13,7 +13,9 @@ use media_queries::MediaType;
use parser::ParserContext;
use properties::{ComputedValues, StyleBuilder};
use properties::longhands::font_size;
use rule_cache::RuleCacheConditions;
use selectors::parser::SelectorParseError;
use std::cell::RefCell;
use std::fmt;
use std::sync::atomic::{AtomicBool, AtomicIsize, Ordering};
use style_traits::{CSSPixel, DevicePixel, ToCss, ParseError};
@ -244,6 +246,7 @@ pub enum Range<T> {
impl Range<specified::Length> {
fn to_computed_range(&self, device: &Device, quirks_mode: QuirksMode) -> Range<Au> {
let default_values = device.default_computed_values();
let mut conditions = RuleCacheConditions::default();
// http://dev.w3.org/csswg/mediaqueries3/#units
// em units are relative to the initial font-size.
let context = computed::Context {
@ -257,6 +260,7 @@ impl Range<specified::Length> {
cached_system_font: None,
quirks_mode: quirks_mode,
for_smil_animation: false,
rule_cache_conditions: RefCell::new(&mut conditions),
};
match *self {