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

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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@ -19,7 +19,7 @@ pub fn derive(input: DeriveInput) -> Tokens {
"Parse is only supported for single-variant enums for now"
);
let variant_attrs = cg::parse_variant_attrs::<CssVariantAttrs>(&variant.ast());
let variant_attrs = cg::parse_variant_attrs_from_ast::<CssVariantAttrs>(&variant.ast());
let identifier = cg::to_css_identifier(
&variant_attrs.keyword.unwrap_or(variant.ast().ident.as_ref().into()),
);