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Share a single #[animation(no_bound(…))] for the animation traits

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This commit is contained in:
Anthony Ramine 2018-03-11 21:18:46 +01:00
parent ba12a344c6
commit dcae5860a8
5 changed files with 22 additions and 24 deletions
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9
components/style_derive/compute_squared_distance.rs
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@ -2,16 +2,15 @@
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
use animate::AnimationVariantAttrs;
use animate::{AnimationInputAttrs, AnimationVariantAttrs};
use cg;
use darling::util::IdentList;
use quote::Tokens;
use syn::{DeriveInput, Path};
use synstructure;
pub fn derive(mut input: DeriveInput) -> Tokens {
let input_attrs = cg::parse_input_attrs::<DistanceInputAttrs>(&input);
let no_bound = input_attrs.no_bound.unwrap_or_default();
let animation_input_attrs = cg::parse_input_attrs::<AnimationInputAttrs>(&input);
let no_bound = animation_input_attrs.no_bound.unwrap_or_default();
let mut where_clause = input.generics.where_clause.take();
for param in input.generics.type_params() {
if !no_bound.contains(&param.ident) {
@ -67,6 +66,7 @@ pub fn derive(mut input: DeriveInput) -> Tokens {
input.generics.where_clause = where_clause;
if append_error_clause {
let input_attrs = cg::parse_input_attrs::<DistanceInputAttrs>(&input);
if let Some(fallback) = input_attrs.fallback {
match_body.append_all(quote! {
(this, other) => #fallback(this, other)
@ -99,7 +99,6 @@ pub fn derive(mut input: DeriveInput) -> Tokens {
#[derive(Default, FromDeriveInput)]
struct DistanceInputAttrs {
fallback: Option<Path>,
no_bound: Option<IdentList>,
}
#[darling(attributes(distance), default)]