зеркало из https://github.com/mozilla/gecko-dev.git
45 строки
1.4 KiB
Rust
45 строки
1.4 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
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use cssparser::{Parser, ParserInput};
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use servo_arc::Arc;
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use style::custom_properties::{Name, SpecifiedValue, CustomPropertiesMap, CustomPropertiesBuilder, CssEnvironment};
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use style::properties::CustomDeclarationValue;
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use test::{self, Bencher};
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fn cascade(
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name_and_value: &[(&str, &str)],
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inherited: Option<&Arc<CustomPropertiesMap>>,
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) -> Option<Arc<CustomPropertiesMap>> {
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let values = name_and_value.iter().map(|&(name, value)| {
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let mut input = ParserInput::new(value);
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let mut parser = Parser::new(&mut input);
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(Name::from(name), SpecifiedValue::parse(&mut parser).unwrap())
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}).collect::<Vec<_>>();
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let env = CssEnvironment;
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let mut builder = CustomPropertiesBuilder::new(inherited, &env);
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for &(ref name, ref val) in &values {
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builder.cascade(name, &CustomDeclarationValue::Value(val.clone()));
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}
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builder.build()
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}
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#[bench]
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fn cascade_custom_simple(b: &mut Bencher) {
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b.iter(|| {
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let parent = cascade(&[
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("foo", "10px"),
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("bar", "100px"),
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], None);
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test::black_box(cascade(&[
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("baz", "calc(40em + 4px)"),
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("bazz", "calc(30em + 4px)"),
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], parent.as_ref()))
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})
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}
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