.is_accessible_from(self.item_def_id(), tcx)
&& tcx.all_impls(*trait_def_id)
.any(|impl_def_id| {
- let trait_ref = tcx.impl_trait_ref(impl_def_id);
- trait_ref.map_or(false, |impl_| {
+ let trait_ref = tcx.bound_impl_trait_ref(impl_def_id);
+ trait_ref.map_or(false, |trait_ref| {
+ let impl_ = trait_ref.subst(
+ tcx,
+ infcx.fresh_substs_for_item(span, impl_def_id),
+ );
infcx
.can_eq(
param_env,
--- /dev/null
+// run-rustfix
+trait Trait<A> {}
+
+trait Assoc {
+ type Ty;
+}
+
+impl<A> Assoc for dyn Trait<A> {
+ type Ty = i32;
+}
+
+fn main() {
+ let _x: <dyn Trait<i32> as Assoc>::Ty; //~ ERROR ambiguous associated type
+}
--- /dev/null
+// run-rustfix
+trait Trait<A> {}
+
+trait Assoc {
+ type Ty;
+}
+
+impl<A> Assoc for dyn Trait<A> {
+ type Ty = i32;
+}
+
+fn main() {
+ let _x: <dyn Trait<i32>>::Ty; //~ ERROR ambiguous associated type
+}
--- /dev/null
+error[E0223]: ambiguous associated type
+ --> $DIR/ambiguous-associated-type-with-generics.rs:13:13
+ |
+LL | let _x: <dyn Trait<i32>>::Ty;
+ | ^^^^^^^^^^^^^^^^^^^^ help: use the fully-qualified path: `<dyn Trait<i32> as Assoc>::Ty`
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0223`.
--> $DIR/bad-assoc-ty.rs:33:10
|
LL | type H = Fn(u8) -> (u8)::Output;
- | ^^^^^^^^^^^^^^^^^^^^^^
- |
-help: if there were a trait named `Example` with associated type `Output` implemented for `(dyn Fn(u8) -> u8 + 'static)`, you could use the fully-qualified path
- |
-LL | type H = <(dyn Fn(u8) -> u8 + 'static) as Example>::Output;
- | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ | ^^^^^^^^^^^^^^^^^^^^^^ help: use the fully-qualified path: `<(dyn Fn(u8) -> u8 + 'static) as IntoFuture>::Output`
error[E0223]: ambiguous associated type
--> $DIR/bad-assoc-ty.rs:39:19