bendns' repos / rust-analyzer
Unnamed repository; edit this file 'description' to name the repository.
Diffstat (limited to 'crates/hir-ty/src/infer/unify.rs')
-rw-r--r--crates/hir-ty/src/infer/unify.rs7
1 files changed, 5 insertions, 2 deletions
diff --git a/crates/hir-ty/src/infer/unify.rs b/crates/hir-ty/src/infer/unify.rs
index e77b55670b..6ccd0b215c 100644
--- a/crates/hir-ty/src/infer/unify.rs
+++ b/crates/hir-ty/src/infer/unify.rs
@@ -598,11 +598,14 @@ impl<'a> InferenceTable<'a> {
.build();
let projection = {
- let b = TyBuilder::assoc_type_projection(self.db, output_assoc_type);
+ let b = TyBuilder::subst_for_def(self.db, fn_once_trait, None);
if b.remaining() != 2 {
return None;
}
- b.push(ty.clone()).push(arg_ty).build()
+ let fn_once_subst = b.push(ty.clone()).push(arg_ty).build();
+
+ TyBuilder::assoc_type_projection(self.db, output_assoc_type, Some(fn_once_subst))
+ .build()
};
let trait_env = self.trait_env.env.clone();