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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/stylesheets/viewport_rule.rs
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@ -17,10 +17,12 @@ use font_metrics::get_metrics_provider_for_product;
use media_queries::Device;
use parser::{ParserContext, ParserErrorContext};
use properties::StyleBuilder;
use rule_cache::RuleCacheConditions;
use selectors::parser::SelectorParseError;
use shared_lock::{SharedRwLockReadGuard, ToCssWithGuard};
use std::ascii::AsciiExt;
use std::borrow::Cow;
use std::cell::RefCell;
use std::fmt;
use std::iter::Enumerate;
use std::str::Chars;
@ -707,6 +709,7 @@ impl MaybeNew for ViewportConstraints {
let default_values = device.default_computed_values();
let mut conditions = RuleCacheConditions::default();
let context = Context {
is_root_element: false,
builder: StyleBuilder::for_derived_style(device, default_values, None, None),
@ -715,6 +718,7 @@ impl MaybeNew for ViewportConstraints {
in_media_query: false,
quirks_mode: quirks_mode,
for_smil_animation: false,
rule_cache_conditions: RefCell::new(&mut conditions),
};
// DEVICE-ADAPT § 9.3 Resolving 'extend-to-zoom'