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|
error[E0666]: nested `impl Trait` is not allowed
--> $DIR/nested_impl_trait.rs:6:56
|
LL | fn bad_in_ret_position(x: impl Into<u32>) -> impl Into<impl Debug> { x }
| ----------^^^^^^^^^^-
| | |
| | nested `impl Trait` here
| outer `impl Trait`
error[E0666]: nested `impl Trait` is not allowed
--> $DIR/nested_impl_trait.rs:10:42
|
LL | fn bad_in_fn_syntax(x: fn() -> impl Into<impl Debug>) {}
| ----------^^^^^^^^^^-
| | |
| | nested `impl Trait` here
| outer `impl Trait`
error[E0666]: nested `impl Trait` is not allowed
--> $DIR/nested_impl_trait.rs:14:37
|
LL | fn bad_in_arg_position(_: impl Into<impl Debug>) { }
| ----------^^^^^^^^^^-
| | |
| | nested `impl Trait` here
| outer `impl Trait`
error[E0666]: nested `impl Trait` is not allowed
--> $DIR/nested_impl_trait.rs:19:44
|
LL | fn bad(x: impl Into<u32>) -> impl Into<impl Debug> { x }
| ----------^^^^^^^^^^-
| | |
| | nested `impl Trait` here
| outer `impl Trait`
error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in `fn` pointer return types
--> $DIR/nested_impl_trait.rs:10:32
|
LL | fn bad_in_fn_syntax(x: fn() -> impl Into<impl Debug>) {}
| ^^^^^^^^^^^^^^^^^^^^^
error[E0277]: the trait bound `impl Debug: From<impl Into<u32>>` is not satisfied
--> $DIR/nested_impl_trait.rs:6:46
|
LL | fn bad_in_ret_position(x: impl Into<u32>) -> impl Into<impl Debug> { x }
| ^^^^^^^^^^^^^^^^^^^^^ the trait `From<impl Into<u32>>` is not implemented for `impl Debug`
|
= help: the trait `Into<U>` is implemented for `T`
= note: required for `impl Into<u32>` to implement `Into<impl Debug>`
error[E0277]: the trait bound `impl Debug: From<impl Into<u32>>` is not satisfied
--> $DIR/nested_impl_trait.rs:19:34
|
LL | fn bad(x: impl Into<u32>) -> impl Into<impl Debug> { x }
| ^^^^^^^^^^^^^^^^^^^^^ the trait `From<impl Into<u32>>` is not implemented for `impl Debug`
|
= help: the trait `Into<U>` is implemented for `T`
= note: required for `impl Into<u32>` to implement `Into<impl Debug>`
error: aborting due to 7 previous errors
Some errors have detailed explanations: E0277, E0562, E0666.
For more information about an error, try `rustc --explain E0277`.
|
