rust/src/test/ui/impl-trait/where-allowed.stderr

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error[E0666]: nested `impl Trait` is not allowed
--> $DIR/where-allowed.rs:47:51
|
LL | fn in_impl_Fn_parameter_in_parameters(_: &impl Fn(impl Debug)) { panic!() }
| --------^^^^^^^^^^-
| | |
| | nested `impl Trait` here
| outer `impl Trait`
error[E0666]: nested `impl Trait` is not allowed
--> $DIR/where-allowed.rs:56:57
|
LL | fn in_impl_Fn_parameter_in_return() -> &'static impl Fn(impl Debug) { panic!() }
| --------^^^^^^^^^^-
| | |
| | nested `impl Trait` here
| outer `impl Trait`
error[E0658]: `impl Trait` in type aliases is unstable
--> $DIR/where-allowed.rs:121:16
|
LL | type Out = impl Debug;
| ^^^^^^^^^^
|
= note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
= help: add `#![feature(min_type_alias_impl_trait)]` to the crate attributes to enable
error[E0658]: `impl Trait` in type aliases is unstable
--> $DIR/where-allowed.rs:157:23
|
LL | type InTypeAlias<R> = impl Debug;
| ^^^^^^^^^^
|
= note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
= help: add `#![feature(min_type_alias_impl_trait)]` to the crate attributes to enable
error[E0658]: `impl Trait` in type aliases is unstable
--> $DIR/where-allowed.rs:161:39
|
LL | type InReturnInTypeAlias<R> = fn() -> impl Debug;
| ^^^^^^^^^^
|
= note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
= help: add `#![feature(min_type_alias_impl_trait)]` to the crate attributes to enable
error[E0562]: `impl Trait` not allowed outside of function and inherent method return types
--> $DIR/where-allowed.rs:15:40
|
LL | fn in_fn_parameter_in_parameters(_: fn(impl Debug)) { panic!() }
| ^^^^^^^^^^
error[E0562]: `impl Trait` not allowed outside of function and inherent method return types
--> $DIR/where-allowed.rs:19:42
|
LL | fn in_fn_return_in_parameters(_: fn() -> impl Debug) { panic!() }
| ^^^^^^^^^^
error[E0562]: `impl Trait` not allowed outside of function and inherent method return types
--> $DIR/where-allowed.rs:23:38
|
LL | fn in_fn_parameter_in_return() -> fn(impl Debug) { panic!() }
| ^^^^^^^^^^
error[E0562]: `impl Trait` not allowed outside of function and inherent method return types
--> $DIR/where-allowed.rs:27:40
|
LL | fn in_fn_return_in_return() -> fn() -> impl Debug { panic!() }
| ^^^^^^^^^^
error[E0562]: `impl Trait` not allowed outside of function and inherent method return types
--> $DIR/where-allowed.rs:31:49
|
LL | fn in_dyn_Fn_parameter_in_parameters(_: &dyn Fn(impl Debug)) { panic!() }
| ^^^^^^^^^^
error[E0562]: `impl Trait` not allowed outside of function and inherent method return types
--> $DIR/where-allowed.rs:35:51
|
LL | fn in_dyn_Fn_return_in_parameters(_: &dyn Fn() -> impl Debug) { panic!() }
| ^^^^^^^^^^
error[E0562]: `impl Trait` not allowed outside of function and inherent method return types
--> $DIR/where-allowed.rs:39:55
|
LL | fn in_dyn_Fn_parameter_in_return() -> &'static dyn Fn(impl Debug) { panic!() }
| ^^^^^^^^^^
error[E0562]: `impl Trait` not allowed outside of function and inherent method return types
--> $DIR/where-allowed.rs:43:57
|
LL | fn in_dyn_Fn_return_in_return() -> &'static dyn Fn() -> impl Debug { panic!() }
| ^^^^^^^^^^
error[E0562]: `impl Trait` not allowed outside of function and inherent method return types
--> $DIR/where-allowed.rs:47:51
|
LL | fn in_impl_Fn_parameter_in_parameters(_: &impl Fn(impl Debug)) { panic!() }
| ^^^^^^^^^^
error[E0562]: `impl Trait` not allowed outside of function and inherent method return types
--> $DIR/where-allowed.rs:52:53
|
LL | fn in_impl_Fn_return_in_parameters(_: &impl Fn() -> impl Debug) { panic!() }
| ^^^^^^^^^^
error[E0562]: `impl Trait` not allowed outside of function and inherent method return types
--> $DIR/where-allowed.rs:56:57
|
LL | fn in_impl_Fn_parameter_in_return() -> &'static impl Fn(impl Debug) { panic!() }
| ^^^^^^^^^^
error[E0562]: `impl Trait` not allowed outside of function and inherent method return types
--> $DIR/where-allowed.rs:62:59
|
LL | fn in_impl_Fn_return_in_return() -> &'static impl Fn() -> impl Debug { panic!() }
| ^^^^^^^^^^
error[E0562]: `impl Trait` not allowed outside of function and inherent method return types
--> $DIR/where-allowed.rs:67:38
|
LL | fn in_Fn_parameter_in_generics<F: Fn(impl Debug)> (_: F) { panic!() }
| ^^^^^^^^^^
error[E0562]: `impl Trait` not allowed outside of function and inherent method return types
--> $DIR/where-allowed.rs:71:40
|
LL | fn in_Fn_return_in_generics<F: Fn() -> impl Debug> (_: F) { panic!() }
| ^^^^^^^^^^
error[E0562]: `impl Trait` not allowed outside of function and inherent method return types
--> $DIR/where-allowed.rs:84:32
|
LL | struct InBraceStructField { x: impl Debug }
| ^^^^^^^^^^
error[E0562]: `impl Trait` not allowed outside of function and inherent method return types
--> $DIR/where-allowed.rs:88:41
|
LL | struct InAdtInBraceStructField { x: Vec<impl Debug> }
| ^^^^^^^^^^
error[E0562]: `impl Trait` not allowed outside of function and inherent method return types
--> $DIR/where-allowed.rs:92:27
|
LL | struct InTupleStructField(impl Debug);
| ^^^^^^^^^^
error[E0562]: `impl Trait` not allowed outside of function and inherent method return types
--> $DIR/where-allowed.rs:97:25
|
LL | InBraceVariant { x: impl Debug },
| ^^^^^^^^^^
error[E0562]: `impl Trait` not allowed outside of function and inherent method return types
--> $DIR/where-allowed.rs:99:20
|
LL | InTupleVariant(impl Debug),
| ^^^^^^^^^^
error[E0562]: `impl Trait` not allowed outside of function and inherent method return types
--> $DIR/where-allowed.rs:110:23
|
LL | fn in_return() -> impl Debug;
| ^^^^^^^^^^
error[E0562]: `impl Trait` not allowed outside of function and inherent method return types
--> $DIR/where-allowed.rs:128:34
|
LL | fn in_trait_impl_return() -> impl Debug { () }
| ^^^^^^^^^^
error[E0562]: `impl Trait` not allowed outside of function and inherent method return types
--> $DIR/where-allowed.rs:141:33
|
LL | fn in_foreign_parameters(_: impl Debug);
| ^^^^^^^^^^
error[E0562]: `impl Trait` not allowed outside of function and inherent method return types
--> $DIR/where-allowed.rs:144:31
|
LL | fn in_foreign_return() -> impl Debug;
| ^^^^^^^^^^
error[E0562]: `impl Trait` not allowed outside of function and inherent method return types
--> $DIR/where-allowed.rs:161:39
|
LL | type InReturnInTypeAlias<R> = fn() -> impl Debug;
| ^^^^^^^^^^
error[E0562]: `impl Trait` not allowed outside of function and inherent method return types
--> $DIR/where-allowed.rs:166:16
|
LL | impl PartialEq<impl Debug> for () {
| ^^^^^^^^^^
error[E0562]: `impl Trait` not allowed outside of function and inherent method return types
--> $DIR/where-allowed.rs:171:24
|
LL | impl PartialEq<()> for impl Debug {
| ^^^^^^^^^^
error[E0562]: `impl Trait` not allowed outside of function and inherent method return types
--> $DIR/where-allowed.rs:176:6
|
LL | impl impl Debug {
| ^^^^^^^^^^
error[E0562]: `impl Trait` not allowed outside of function and inherent method return types
--> $DIR/where-allowed.rs:182:24
|
LL | impl InInherentImplAdt<impl Debug> {
| ^^^^^^^^^^
error[E0562]: `impl Trait` not allowed outside of function and inherent method return types
--> $DIR/where-allowed.rs:188:11
|
LL | where impl Debug: Debug
| ^^^^^^^^^^
error[E0562]: `impl Trait` not allowed outside of function and inherent method return types
--> $DIR/where-allowed.rs:195:15
|
LL | where Vec<impl Debug>: Debug
| ^^^^^^^^^^
error[E0562]: `impl Trait` not allowed outside of function and inherent method return types
--> $DIR/where-allowed.rs:202:24
|
LL | where T: PartialEq<impl Debug>
| ^^^^^^^^^^
error[E0562]: `impl Trait` not allowed outside of function and inherent method return types
--> $DIR/where-allowed.rs:209:17
|
LL | where T: Fn(impl Debug)
| ^^^^^^^^^^
error[E0562]: `impl Trait` not allowed outside of function and inherent method return types
--> $DIR/where-allowed.rs:216:22
|
LL | where T: Fn() -> impl Debug
| ^^^^^^^^^^
error[E0562]: `impl Trait` not allowed outside of function and inherent method return types
--> $DIR/where-allowed.rs:222:29
|
LL | let _in_local_variable: impl Fn() = || {};
| ^^^^^^^^^
|
= help: add `#![feature(impl_trait_in_bindings)]` to the crate attributes to enable
error[E0562]: `impl Trait` not allowed outside of function and inherent method return types
--> $DIR/where-allowed.rs:224:46
|
LL | let _in_return_in_local_variable = || -> impl Fn() { || {} };
| ^^^^^^^^^
error[E0720]: cannot resolve opaque type
--> $DIR/where-allowed.rs:56:49
|
LL | fn in_impl_Fn_parameter_in_return() -> &'static impl Fn(impl Debug) { panic!() }
| ^^^^^^^^^^^^^^^^^^^ -------- this returned value is of `!` type
| |
| cannot resolve opaque type
|
= help: this error will resolve once the item's body returns a concrete type
error[E0720]: cannot resolve opaque type
--> $DIR/where-allowed.rs:62:46
|
LL | fn in_impl_Fn_return_in_return() -> &'static impl Fn() -> impl Debug { panic!() }
| ^^^^^^^^^^^^^^^^^^^^^^^ -------- this returned value is of `!` type
| |
| cannot resolve opaque type
|
= help: this error will resolve once the item's body returns a concrete type
error: could not find defining uses
--> $DIR/where-allowed.rs:121:16
|
LL | type Out = impl Debug;
| ^^^^^^^^^^
error: could not find defining uses
--> $DIR/where-allowed.rs:157:23
|
LL | type InTypeAlias<R> = impl Debug;
| ^^^^^^^^^^
error: aborting due to 44 previous errors
Some errors have detailed explanations: E0562, E0658, E0666, E0720.
For more information about an error, try `rustc --explain E0562`.