rust/tests/ui/issues/issue-28344.stderr
Esteban Küber 17a6ae2df3 Detect object safety errors when assoc type is missing
When an associated type with GATs isn't specified in a `dyn Trait`, emit
an object safety error instead of only complaining about the missing
associated type, as it will lead the user down a path of three different
errors before letting them know that what they were trying to do is
impossible to begin with.

Fix #103155.
2023-10-30 22:12:07 +00:00

62 lines
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warning: trait objects without an explicit `dyn` are deprecated
--> $DIR/issue-28344.rs:4:17
|
LL | let x: u8 = BitXor::bitor(0 as u8, 0 as u8);
| ^^^^^^
|
= warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
= note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
= note: `#[warn(bare_trait_objects)]` on by default
help: use `dyn`
|
LL | let x: u8 = <dyn BitXor>::bitor(0 as u8, 0 as u8);
| ++++ +
error[E0191]: the value of the associated type `Output` in `BitXor` must be specified
--> $DIR/issue-28344.rs:4:17
|
LL | let x: u8 = BitXor::bitor(0 as u8, 0 as u8);
| ^^^^^^ help: specify the associated type: `BitXor<Output = Type>`
error[E0599]: no function or associated item named `bitor` found for trait object `dyn BitXor<_>` in the current scope
--> $DIR/issue-28344.rs:4:25
|
LL | let x: u8 = BitXor::bitor(0 as u8, 0 as u8);
| ^^^^^
| |
| function or associated item not found in `dyn BitXor<_>`
| help: there is a method with a similar name: `bitxor`
warning: trait objects without an explicit `dyn` are deprecated
--> $DIR/issue-28344.rs:10:13
|
LL | let g = BitXor::bitor;
| ^^^^^^
|
= warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
= note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
help: use `dyn`
|
LL | let g = <dyn BitXor>::bitor;
| ++++ +
error[E0191]: the value of the associated type `Output` in `BitXor` must be specified
--> $DIR/issue-28344.rs:10:13
|
LL | let g = BitXor::bitor;
| ^^^^^^ help: specify the associated type: `BitXor<Output = Type>`
error[E0599]: no function or associated item named `bitor` found for trait object `dyn BitXor<_>` in the current scope
--> $DIR/issue-28344.rs:10:21
|
LL | let g = BitXor::bitor;
| ^^^^^
| |
| function or associated item not found in `dyn BitXor<_>`
| help: there is a method with a similar name: `bitxor`
error: aborting due to 4 previous errors; 2 warnings emitted
Some errors have detailed explanations: E0191, E0599.
For more information about an error, try `rustc --explain E0191`.