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Improve handling of trait bounds when deriving fmap-like traits

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This commit is contained in:
Anthony Ramine 2017-08-26 12:40:28 +02:00
parent 8101887d31
commit efc852f6e3
12 changed files with 229 additions and 136 deletions
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6
components/style_derive/to_animated_value.rs
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@ -12,13 +12,9 @@ pub fn derive(input: syn::DeriveInput) -> quote::Tokens {
let trait_path = &["values", "animated", "ToAnimatedValue"];
let (impl_generics, ty_generics, mut where_clause, animated_value_type) =
cg::fmap_trait_parts(&input, trait_path, "AnimatedValue");
for param in &input.generics.ty_params {
where_clause.add_trait_bound(
syn::Ty::Path(None, param.ident.clone().into()),
);
}
let to_body = cg::fmap_match(&input, BindStyle::Move, |binding| {
where_clause.add_trait_bound(&binding.field.ty);
quote!(::values::animated::ToAnimatedValue::to_animated_value(#binding))
});
let from_body = cg::fmap_match(&input, BindStyle::Move, |binding| {