rust/tests/ui/impl-trait/in-assoc-type.stderr

23 lines
830 B
Plaintext

error[E0308]: mismatched types
--> $DIR/in-assoc-type.rs:20:22
|
LL | type Bar = impl std::fmt::Debug;
| -------------------- the expected opaque type
...
LL | fn foo(&self) -> <Self as Foo<()>>::Bar {}
| --- ^^^^^^^^^^^^^^^^^^^^^^ expected opaque type, found `()`
| |
| implicitly returns `()` as its body has no tail or `return` expression
|
= note: expected opaque type `<() as Foo<()>>::Bar`
found unit type `()`
note: this item must have the opaque type in its signature in order to be able to register hidden types
--> $DIR/in-assoc-type.rs:20:8
|
LL | fn foo(&self) -> <Self as Foo<()>>::Bar {}
| ^^^
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0308`.