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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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66 changed files with 615 additions and 249 deletions
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7
components/style_derive/lib.rs
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@ -16,6 +16,7 @@ mod animate;
mod cg;
mod compute_squared_distance;
mod parse;
mod specified_value_info;
mod to_animated_value;
mod to_animated_zero;
mod to_computed_value;
@ -62,3 +63,9 @@ pub fn derive_to_css(stream: TokenStream) -> TokenStream {
let input = syn::parse(stream).unwrap();
to_css::derive(input).into()
}
#[proc_macro_derive(SpecifiedValueInfo, attributes(css))]
pub fn derive_specified_value_info(stream: TokenStream) -> TokenStream {
let input = syn::parse(stream).unwrap();
specified_value_info::derive(input).into()
}