| error[E0308]: mismatched types |
| --> $DIR/issue-77179.rs:9:5 |
| | |
| LL | type Pointer<T> = impl std::ops::Deref<Target = T>; |
| | -------------------------------- the expected opaque type |
| LL | |
| LL | fn test() -> Pointer<_> { |
| | ---------- expected `Pointer<_>` because of return type |
| LL | |
| LL | Box::new(1) |
| | ^^^^^^^^^^^ expected opaque type, found `Box<{integer}>` |
| | |
| = note: expected opaque type `Pointer<_>` |
| found struct `Box<{integer}>` |
| note: this item must have the opaque type in its signature in order to be able to register hidden types |
| --> $DIR/issue-77179.rs:7:4 |
| | |
| LL | fn test() -> Pointer<_> { |
| | ^^^^ |
| |
| error[E0121]: the placeholder `_` is not allowed within types on item signatures for return types |
| --> $DIR/issue-77179.rs:7:22 |
| | |
| LL | fn test() -> Pointer<_> { |
| | ^ not allowed in type signatures |
| |
| error[E0121]: the placeholder `_` is not allowed within types on item signatures for functions |
| --> $DIR/issue-77179.rs:18:25 |
| | |
| LL | fn bar() -> Pointer<_>; |
| | ^ |
| | | |
| | not allowed in type signatures |
| | help: use type parameters instead: `T` |
| |
| error: aborting due to 3 previous errors |
| |
| Some errors have detailed explanations: E0121, E0308. |
| For more information about an error, try `rustc --explain E0121`. |
