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Simplify some code in #[derive(ToCss)]

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This commit is contained in:
Anthony Ramine 2018-03-09 10:12:29 +01:00
parent 324e22db03
commit 02b0f71d45
1 changed files with 2 additions and 6 deletions
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8
components/style_derive/to_css.rs
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@ -5,16 +5,12 @@
use cg; use cg;
use darling::util::Override; use darling::util::Override;
use quote::{ToTokens, Tokens}; use quote::{ToTokens, Tokens};
use syn::{self, Data, GenericParam, Path, WhereClause}; use syn::{self, Data, Path, WhereClause};
use synstructure::{BindingInfo, Structure, VariantInfo}; use synstructure::{BindingInfo, Structure, VariantInfo};
pub fn derive(mut input: syn::DeriveInput) -> Tokens { pub fn derive(mut input: syn::DeriveInput) -> Tokens {
let mut where_clause = input.generics.where_clause.take(); let mut where_clause = input.generics.where_clause.take();
for param in &input.generics.params { for param in input.generics.type_params() {
let param = match *param {
GenericParam::Type(ref param) => param,
_ => continue,
};
cg::add_predicate( cg::add_predicate(
&mut where_clause, &mut where_clause,
parse_quote!(#param: ::style_traits::ToCss), parse_quote!(#param: ::style_traits::ToCss),