mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-23 15:23:46 +00:00
49 lines
1.5 KiB
Plaintext
49 lines
1.5 KiB
Plaintext
error[E0403]: the name `T` is already used for a generic parameter in this item's generic parameters
|
|
--> $DIR/issue-86756.rs:1:14
|
|
|
|
|
LL | trait Foo<T, T = T> {}
|
|
| - ^ already used
|
|
| |
|
|
| first use of `T`
|
|
|
|
error[E0412]: cannot find type `dyn` in this scope
|
|
--> $DIR/issue-86756.rs:5:10
|
|
|
|
|
LL | eq::<dyn, Foo>
|
|
| ^^^ not found in this scope
|
|
|
|
warning: trait objects without an explicit `dyn` are deprecated
|
|
--> $DIR/issue-86756.rs:5:15
|
|
|
|
|
LL | eq::<dyn, Foo>
|
|
| ^^^
|
|
|
|
|
= 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 | eq::<dyn, dyn Foo>
|
|
| +++
|
|
|
|
error[E0107]: missing generics for trait `Foo`
|
|
--> $DIR/issue-86756.rs:5:15
|
|
|
|
|
LL | eq::<dyn, Foo>
|
|
| ^^^ expected at least 1 generic argument
|
|
|
|
|
note: trait defined here, with at least 1 generic parameter: `T`
|
|
--> $DIR/issue-86756.rs:1:7
|
|
|
|
|
LL | trait Foo<T, T = T> {}
|
|
| ^^^ -
|
|
help: add missing generic argument
|
|
|
|
|
LL | eq::<dyn, Foo<T>>
|
|
| +++
|
|
|
|
error: aborting due to 3 previous errors; 1 warning emitted
|
|
|
|
Some errors have detailed explanations: E0107, E0403, E0412.
|
|
For more information about an error, try `rustc --explain E0107`.
|