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Get Output assoc type by name

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This commit is contained in:
adamrk 2020-06-20 11:53:55 +02:00
parent f07338bae2
commit d8f5192d99
1 changed files with 3 additions and 13 deletions
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16
crates/ra_hir_ty/src/infer/expr.rs
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@ -10,7 +10,7 @@ use hir_def::{
resolver::resolver_for_expr,
AdtId, AssocContainerId, FieldId, Lookup,
};
use hir_expand::name::Name;
use hir_expand::name::{name, Name};
use ra_syntax::ast::RangeOp;
use crate::{
@ -70,18 +70,8 @@ impl<'a> InferenceContext<'a> {
.filter_map(|f| f.get_id(self.db, krate))
.collect();
let fn_once_trait = FnTrait::FnOnce.get_id(self.db, krate)?;
let output_assoc_type = match self
.db
.trait_data(fn_once_trait)
.associated_types()
.collect::<Vec<hir_def::TypeAliasId>>()
.as_slice()
{
[output] => *output,
_ => {
return None;
}
};
let output_assoc_type =
self.db.trait_data(fn_once_trait).associated_type_by_name(&name![Output])?;
for fn_trait in fn_traits {
let generic_params = generics(self.db.upcast(), fn_trait.into());
if generic_params.len() != 2 {