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style: Add a ValueInfo trait for exposing types needed by devtools.

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Most of types just derive it using proc_macro directly. Some of value
types need manual impl.

In my current plan, this new trait will be used in bug 1434130 to expose
values as well.

Bug: 1455576
Reviewed-by: emilio
MozReview-Commit-ID: LI7fy45VkRw
This commit is contained in:
Xidorn Quan 2018-04-26 09:01:02 +10:00 • committed by Emilio Cobos Álvarez
parent 276fb7e04b
commit 7fe7b2ffb1
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GPG key ID: 056B727BB9C1027C
66 changed files with 615 additions and 249 deletions
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8
components/style/values/specified/transform.rs
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@ -7,7 +7,7 @@
use cssparser::Parser;
use parser::{Parse, ParserContext};
use selectors::parser::SelectorParseErrorKind;
use style_traits::{ParseError, StyleParseErrorKind};
use style_traits::{CssType, ParseError, SpecifiedValueInfo, StyleParseErrorKind};
use values::computed::{Context, LengthOrPercentage as ComputedLengthOrPercentage};
use values::computed::{Percentage as ComputedPercentage, ToComputedValue};
use values::computed::transform::TimingFunction as ComputedTimingFunction;
@ -233,7 +233,7 @@ impl Parse for Transform {
}
/// The specified value of a component of a CSS `<transform-origin>`.
#[derive(Clone, Debug, MallocSizeOf, PartialEq, ToCss)]
#[derive(Clone, Debug, MallocSizeOf, PartialEq, SpecifiedValueInfo, ToCss)]
pub enum OriginComponent<S> {
/// `center`
Center,
@ -246,6 +246,10 @@ pub enum OriginComponent<S> {
/// A specified timing function.
pub type TimingFunction = generic::TimingFunction<Integer, Number>;
impl SpecifiedValueInfo for TimingFunction {
const SUPPORTED_TYPES: u8 = CssType::TIMING_FUNCTION;
}
impl Parse for TransformOrigin {
fn parse<'i, 't>(
context: &ParserContext,