317 lines
14 KiB
Plaintext
317 lines
14 KiB
Plaintext
error[E0666]: nested `impl Trait` is not allowed
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--> $DIR/where-allowed.rs:47:51
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LL | fn in_impl_Fn_parameter_in_parameters(_: &impl Fn(impl Debug)) { panic!() }
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| --------^^^^^^^^^^-
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| | |
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| | nested `impl Trait` here
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| outer `impl Trait`
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error[E0666]: nested `impl Trait` is not allowed
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--> $DIR/where-allowed.rs:56:57
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LL | fn in_impl_Fn_parameter_in_return() -> &'static impl Fn(impl Debug) { panic!() }
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| --------^^^^^^^^^^-
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| | |
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| | nested `impl Trait` here
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| outer `impl Trait`
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error[E0658]: `impl Trait` in type aliases is unstable
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--> $DIR/where-allowed.rs:118:16
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LL | type Out = impl Debug;
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| ^^^^^^^^^^
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= note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
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= help: add `#![feature(type_alias_impl_trait)]` to the crate attributes to enable
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error[E0658]: `impl Trait` in type aliases is unstable
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--> $DIR/where-allowed.rs:153:23
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LL | type InTypeAlias<R> = impl Debug;
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| ^^^^^^^^^^
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= note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
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= help: add `#![feature(type_alias_impl_trait)]` to the crate attributes to enable
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error[E0658]: `impl Trait` in type aliases is unstable
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--> $DIR/where-allowed.rs:156:39
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LL | type InReturnInTypeAlias<R> = fn() -> impl Debug;
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| ^^^^^^^^^^
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= note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
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= help: add `#![feature(type_alias_impl_trait)]` to the crate attributes to enable
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error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in `fn` pointer param
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--> $DIR/where-allowed.rs:16:40
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LL | fn in_fn_parameter_in_parameters(_: fn(impl Debug)) { panic!() }
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| ^^^^^^^^^^
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error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in `fn` pointer return
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--> $DIR/where-allowed.rs:20:42
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LL | fn in_fn_return_in_parameters(_: fn() -> impl Debug) { panic!() }
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| ^^^^^^^^^^
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error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in `fn` pointer param
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--> $DIR/where-allowed.rs:24:38
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LL | fn in_fn_parameter_in_return() -> fn(impl Debug) { panic!() }
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| ^^^^^^^^^^
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error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in `fn` pointer return
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--> $DIR/where-allowed.rs:28:40
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LL | fn in_fn_return_in_return() -> fn() -> impl Debug { panic!() }
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| ^^^^^^^^^^
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error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in `Fn` trait param
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--> $DIR/where-allowed.rs:32:49
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LL | fn in_dyn_Fn_parameter_in_parameters(_: &dyn Fn(impl Debug)) { panic!() }
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| ^^^^^^^^^^
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error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in `Fn` trait return
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--> $DIR/where-allowed.rs:36:51
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LL | fn in_dyn_Fn_return_in_parameters(_: &dyn Fn() -> impl Debug) { panic!() }
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| ^^^^^^^^^^
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error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in `Fn` trait param
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--> $DIR/where-allowed.rs:40:55
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LL | fn in_dyn_Fn_parameter_in_return() -> &'static dyn Fn(impl Debug) { panic!() }
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| ^^^^^^^^^^
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error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in `Fn` trait param
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--> $DIR/where-allowed.rs:47:51
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LL | fn in_impl_Fn_parameter_in_parameters(_: &impl Fn(impl Debug)) { panic!() }
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| ^^^^^^^^^^
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error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in `Fn` trait return
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--> $DIR/where-allowed.rs:52:53
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LL | fn in_impl_Fn_return_in_parameters(_: &impl Fn() -> impl Debug) { panic!() }
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| ^^^^^^^^^^
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error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in `Fn` trait param
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--> $DIR/where-allowed.rs:56:57
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LL | fn in_impl_Fn_parameter_in_return() -> &'static impl Fn(impl Debug) { panic!() }
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| ^^^^^^^^^^
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error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in `Fn` trait param
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--> $DIR/where-allowed.rs:64:38
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LL | fn in_Fn_parameter_in_generics<F: Fn(impl Debug)> (_: F) { panic!() }
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| ^^^^^^^^^^
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error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in `Fn` trait return
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--> $DIR/where-allowed.rs:68:40
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LL | fn in_Fn_return_in_generics<F: Fn() -> impl Debug> (_: F) { panic!() }
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| ^^^^^^^^^^
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error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in field type
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--> $DIR/where-allowed.rs:81:32
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LL | struct InBraceStructField { x: impl Debug }
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| ^^^^^^^^^^
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error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in field type
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--> $DIR/where-allowed.rs:85:41
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LL | struct InAdtInBraceStructField { x: Vec<impl Debug> }
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| ^^^^^^^^^^
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error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in field type
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--> $DIR/where-allowed.rs:89:27
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LL | struct InTupleStructField(impl Debug);
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| ^^^^^^^^^^
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error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in field type
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--> $DIR/where-allowed.rs:94:25
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LL | InBraceVariant { x: impl Debug },
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| ^^^^^^^^^^
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error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in field type
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--> $DIR/where-allowed.rs:96:20
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LL | InTupleVariant(impl Debug),
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| ^^^^^^^^^^
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error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in trait method return
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--> $DIR/where-allowed.rs:107:23
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LL | fn in_return() -> impl Debug;
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| ^^^^^^^^^^
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= note: see issue #91611 <https://github.com/rust-lang/rust/issues/91611> for more information
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= help: add `#![feature(return_position_impl_trait_in_trait)]` to the crate attributes to enable
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error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in `impl` method return
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--> $DIR/where-allowed.rs:124:34
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LL | fn in_trait_impl_return() -> impl Debug { () }
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| ^^^^^^^^^^
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= note: see issue #91611 <https://github.com/rust-lang/rust/issues/91611> for more information
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= help: add `#![feature(return_position_impl_trait_in_trait)]` to the crate attributes to enable
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error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in `extern fn` param
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--> $DIR/where-allowed.rs:137:33
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LL | fn in_foreign_parameters(_: impl Debug);
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| ^^^^^^^^^^
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error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in `extern fn` return
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--> $DIR/where-allowed.rs:140:31
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LL | fn in_foreign_return() -> impl Debug;
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| ^^^^^^^^^^
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error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in `fn` pointer return
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--> $DIR/where-allowed.rs:156:39
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LL | type InReturnInTypeAlias<R> = fn() -> impl Debug;
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| ^^^^^^^^^^
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error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in trait
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--> $DIR/where-allowed.rs:161:16
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LL | impl PartialEq<impl Debug> for () {
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| ^^^^^^^^^^
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error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in impl header
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--> $DIR/where-allowed.rs:166:24
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LL | impl PartialEq<()> for impl Debug {
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| ^^^^^^^^^^
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error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in impl header
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--> $DIR/where-allowed.rs:171:6
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LL | impl impl Debug {
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| ^^^^^^^^^^
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error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in impl header
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--> $DIR/where-allowed.rs:177:24
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LL | impl InInherentImplAdt<impl Debug> {
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| ^^^^^^^^^^
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error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in bound
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--> $DIR/where-allowed.rs:183:11
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LL | where impl Debug: Debug
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| ^^^^^^^^^^
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error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in bound
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--> $DIR/where-allowed.rs:190:15
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LL | where Vec<impl Debug>: Debug
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| ^^^^^^^^^^
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error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in bound
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--> $DIR/where-allowed.rs:197:24
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LL | where T: PartialEq<impl Debug>
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| ^^^^^^^^^^
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error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in `Fn` trait param
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--> $DIR/where-allowed.rs:204:17
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LL | where T: Fn(impl Debug)
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| ^^^^^^^^^^
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error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in `Fn` trait return
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--> $DIR/where-allowed.rs:211:22
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LL | where T: Fn() -> impl Debug
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| ^^^^^^^^^^
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error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in generic parameter default
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--> $DIR/where-allowed.rs:217:40
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LL | struct InStructGenericParamDefault<T = impl Debug>(T);
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| ^^^^^^^^^^
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error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in generic parameter default
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--> $DIR/where-allowed.rs:221:36
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LL | enum InEnumGenericParamDefault<T = impl Debug> { Variant(T) }
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| ^^^^^^^^^^
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error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in generic parameter default
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--> $DIR/where-allowed.rs:225:38
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LL | trait InTraitGenericParamDefault<T = impl Debug> {}
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| ^^^^^^^^^^
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error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in generic parameter default
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--> $DIR/where-allowed.rs:229:41
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LL | type InTypeAliasGenericParamDefault<T = impl Debug> = T;
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| ^^^^^^^^^^
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error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in generic parameter default
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--> $DIR/where-allowed.rs:233:11
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LL | impl <T = impl Debug> T {}
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| ^^^^^^^^^^
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error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in generic parameter default
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--> $DIR/where-allowed.rs:240:40
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LL | fn in_method_generic_param_default<T = impl Debug>(_: T) {}
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| ^^^^^^^^^^
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error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in variable binding
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--> $DIR/where-allowed.rs:246:29
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LL | let _in_local_variable: impl Fn() = || {};
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| ^^^^^^^^^
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error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in closure return
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--> $DIR/where-allowed.rs:248:46
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LL | let _in_return_in_local_variable = || -> impl Fn() { || {} };
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| ^^^^^^^^^
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error: defaults for type parameters are only allowed in `struct`, `enum`, `type`, or `trait` definitions
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--> $DIR/where-allowed.rs:233:7
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LL | impl <T = impl Debug> T {}
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| ^^^^^^^^^^^^^^
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= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
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= note: for more information, see issue #36887 <https://github.com/rust-lang/rust/issues/36887>
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= note: `#[deny(invalid_type_param_default)]` on by default
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error: defaults for type parameters are only allowed in `struct`, `enum`, `type`, or `trait` definitions
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--> $DIR/where-allowed.rs:240:36
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LL | fn in_method_generic_param_default<T = impl Debug>(_: T) {}
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| ^^^^^^^^^^^^^^
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= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
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= note: for more information, see issue #36887 <https://github.com/rust-lang/rust/issues/36887>
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error[E0118]: no nominal type found for inherent implementation
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--> $DIR/where-allowed.rs:233:1
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LL | impl <T = impl Debug> T {}
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| ^^^^^^^^^^^^^^^^^^^^^^^ impl requires a nominal type
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= note: either implement a trait on it or create a newtype to wrap it instead
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error: aborting due to 47 previous errors
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Some errors have detailed explanations: E0118, E0562, E0658, E0666.
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For more information about an error, try `rustc --explain E0118`.
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