458 lines
19 KiB
Plaintext
458 lines
19 KiB
Plaintext
error[E0666]: nested `impl Trait` is not allowed
|
|
--> $DIR/where-allowed.rs:50:51
|
|
|
|
|
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:59:57
|
|
|
|
|
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 associated types is unstable
|
|
--> $DIR/where-allowed.rs:122:16
|
|
|
|
|
LL | type Out = impl Debug;
|
|
| ^^^^^^^^^^
|
|
|
|
|
= note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
|
|
= help: add `#![feature(impl_trait_in_assoc_type)]` to the crate attributes to enable
|
|
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
|
|
|
|
error[E0658]: `impl Trait` in type aliases is unstable
|
|
--> $DIR/where-allowed.rs:159:23
|
|
|
|
|
LL | type InTypeAlias<R> = impl Debug;
|
|
| ^^^^^^^^^^
|
|
|
|
|
= note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
|
|
= help: add `#![feature(type_alias_impl_trait)]` to the crate attributes to enable
|
|
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
|
|
|
|
error[E0658]: `impl Trait` in type aliases is unstable
|
|
--> $DIR/where-allowed.rs:162:39
|
|
|
|
|
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(type_alias_impl_trait)]` to the crate attributes to enable
|
|
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
|
|
|
|
error[E0562]: `impl Trait` is not allowed in `fn` pointer parameters
|
|
--> $DIR/where-allowed.rs:18:40
|
|
|
|
|
LL | fn in_fn_parameter_in_parameters(_: fn(impl Debug)) { panic!() }
|
|
| ^^^^^^^^^^
|
|
|
|
|
= note: `impl Trait` is only allowed in arguments and return types of functions and methods
|
|
|
|
error[E0562]: `impl Trait` is not allowed in `fn` pointer return types
|
|
--> $DIR/where-allowed.rs:22:42
|
|
|
|
|
LL | fn in_fn_return_in_parameters(_: fn() -> impl Debug) { panic!() }
|
|
| ^^^^^^^^^^
|
|
|
|
|
= note: `impl Trait` is only allowed in arguments and return types of functions and methods
|
|
|
|
error[E0562]: `impl Trait` is not allowed in `fn` pointer parameters
|
|
--> $DIR/where-allowed.rs:26:38
|
|
|
|
|
LL | fn in_fn_parameter_in_return() -> fn(impl Debug) { panic!() }
|
|
| ^^^^^^^^^^
|
|
|
|
|
= note: `impl Trait` is only allowed in arguments and return types of functions and methods
|
|
|
|
error[E0562]: `impl Trait` is not allowed in `fn` pointer return types
|
|
--> $DIR/where-allowed.rs:30:40
|
|
|
|
|
LL | fn in_fn_return_in_return() -> fn() -> impl Debug { panic!() }
|
|
| ^^^^^^^^^^
|
|
|
|
|
= note: `impl Trait` is only allowed in arguments and return types of functions and methods
|
|
|
|
error[E0562]: `impl Trait` is not allowed in the parameters of `Fn` trait bounds
|
|
--> $DIR/where-allowed.rs:34:49
|
|
|
|
|
LL | fn in_dyn_Fn_parameter_in_parameters(_: &dyn Fn(impl Debug)) { panic!() }
|
|
| ^^^^^^^^^^
|
|
|
|
|
= note: `impl Trait` is only allowed in arguments and return types of functions and methods
|
|
|
|
error[E0562]: `impl Trait` is not allowed in the return type of `Fn` trait bounds
|
|
--> $DIR/where-allowed.rs:38:51
|
|
|
|
|
LL | fn in_dyn_Fn_return_in_parameters(_: &dyn Fn() -> impl Debug) { panic!() }
|
|
| ^^^^^^^^^^
|
|
|
|
|
= note: `impl Trait` is only allowed in arguments and return types of functions and methods
|
|
|
|
error[E0562]: `impl Trait` is not allowed in the parameters of `Fn` trait bounds
|
|
--> $DIR/where-allowed.rs:42:55
|
|
|
|
|
LL | fn in_dyn_Fn_parameter_in_return() -> &'static dyn Fn(impl Debug) { panic!() }
|
|
| ^^^^^^^^^^
|
|
|
|
|
= note: `impl Trait` is only allowed in arguments and return types of functions and methods
|
|
|
|
error[E0562]: `impl Trait` is not allowed in the parameters of `Fn` trait bounds
|
|
--> $DIR/where-allowed.rs:50:51
|
|
|
|
|
LL | fn in_impl_Fn_parameter_in_parameters(_: &impl Fn(impl Debug)) { panic!() }
|
|
| ^^^^^^^^^^
|
|
|
|
|
= note: `impl Trait` is only allowed in arguments and return types of functions and methods
|
|
|
|
error[E0562]: `impl Trait` is not allowed in the return type of `Fn` trait bounds
|
|
--> $DIR/where-allowed.rs:55:53
|
|
|
|
|
LL | fn in_impl_Fn_return_in_parameters(_: &impl Fn() -> impl Debug) { panic!() }
|
|
| ^^^^^^^^^^
|
|
|
|
|
= note: `impl Trait` is only allowed in arguments and return types of functions and methods
|
|
|
|
error[E0562]: `impl Trait` is not allowed in the parameters of `Fn` trait bounds
|
|
--> $DIR/where-allowed.rs:59:57
|
|
|
|
|
LL | fn in_impl_Fn_parameter_in_return() -> &'static impl Fn(impl Debug) { panic!() }
|
|
| ^^^^^^^^^^
|
|
|
|
|
= note: `impl Trait` is only allowed in arguments and return types of functions and methods
|
|
|
|
error[E0562]: `impl Trait` is not allowed in the parameters of `Fn` trait bounds
|
|
--> $DIR/where-allowed.rs:68:38
|
|
|
|
|
LL | fn in_Fn_parameter_in_generics<F: Fn(impl Debug)> (_: F) { panic!() }
|
|
| ^^^^^^^^^^
|
|
|
|
|
= note: `impl Trait` is only allowed in arguments and return types of functions and methods
|
|
|
|
error[E0562]: `impl Trait` is not allowed in the return type of `Fn` trait bounds
|
|
--> $DIR/where-allowed.rs:72:40
|
|
|
|
|
LL | fn in_Fn_return_in_generics<F: Fn() -> impl Debug> (_: F) { panic!() }
|
|
| ^^^^^^^^^^
|
|
|
|
|
= note: `impl Trait` is only allowed in arguments and return types of functions and methods
|
|
|
|
error[E0562]: `impl Trait` is not allowed in field types
|
|
--> $DIR/where-allowed.rs:86:32
|
|
|
|
|
LL | struct InBraceStructField { x: impl Debug }
|
|
| ^^^^^^^^^^
|
|
|
|
|
= note: `impl Trait` is only allowed in arguments and return types of functions and methods
|
|
|
|
error[E0562]: `impl Trait` is not allowed in field types
|
|
--> $DIR/where-allowed.rs:90:41
|
|
|
|
|
LL | struct InAdtInBraceStructField { x: Vec<impl Debug> }
|
|
| ^^^^^^^^^^
|
|
|
|
|
= note: `impl Trait` is only allowed in arguments and return types of functions and methods
|
|
|
|
error[E0562]: `impl Trait` is not allowed in field types
|
|
--> $DIR/where-allowed.rs:94:27
|
|
|
|
|
LL | struct InTupleStructField(impl Debug);
|
|
| ^^^^^^^^^^
|
|
|
|
|
= note: `impl Trait` is only allowed in arguments and return types of functions and methods
|
|
|
|
error[E0562]: `impl Trait` is not allowed in field types
|
|
--> $DIR/where-allowed.rs:99:25
|
|
|
|
|
LL | InBraceVariant { x: impl Debug },
|
|
| ^^^^^^^^^^
|
|
|
|
|
= note: `impl Trait` is only allowed in arguments and return types of functions and methods
|
|
|
|
error[E0562]: `impl Trait` is not allowed in field types
|
|
--> $DIR/where-allowed.rs:101:20
|
|
|
|
|
LL | InTupleVariant(impl Debug),
|
|
| ^^^^^^^^^^
|
|
|
|
|
= note: `impl Trait` is only allowed in arguments and return types of functions and methods
|
|
|
|
error[E0562]: `impl Trait` is not allowed in `extern fn` parameters
|
|
--> $DIR/where-allowed.rs:143:33
|
|
|
|
|
LL | fn in_foreign_parameters(_: impl Debug);
|
|
| ^^^^^^^^^^
|
|
|
|
|
= note: `impl Trait` is only allowed in arguments and return types of functions and methods
|
|
|
|
error[E0562]: `impl Trait` is not allowed in `extern fn` return types
|
|
--> $DIR/where-allowed.rs:146:31
|
|
|
|
|
LL | fn in_foreign_return() -> impl Debug;
|
|
| ^^^^^^^^^^
|
|
|
|
|
= note: `impl Trait` is only allowed in arguments and return types of functions and methods
|
|
|
|
error[E0562]: `impl Trait` is not allowed in `fn` pointer return types
|
|
--> $DIR/where-allowed.rs:162:39
|
|
|
|
|
LL | type InReturnInTypeAlias<R> = fn() -> impl Debug;
|
|
| ^^^^^^^^^^
|
|
|
|
|
= note: `impl Trait` is only allowed in arguments and return types of functions and methods
|
|
|
|
error[E0562]: `impl Trait` is not allowed in traits
|
|
--> $DIR/where-allowed.rs:167:16
|
|
|
|
|
LL | impl PartialEq<impl Debug> for () {
|
|
| ^^^^^^^^^^
|
|
|
|
|
= note: `impl Trait` is only allowed in arguments and return types of functions and methods
|
|
|
|
error[E0562]: `impl Trait` is not allowed in impl headers
|
|
--> $DIR/where-allowed.rs:172:24
|
|
|
|
|
LL | impl PartialEq<()> for impl Debug {
|
|
| ^^^^^^^^^^
|
|
|
|
|
= note: `impl Trait` is only allowed in arguments and return types of functions and methods
|
|
|
|
error[E0562]: `impl Trait` is not allowed in impl headers
|
|
--> $DIR/where-allowed.rs:177:6
|
|
|
|
|
LL | impl impl Debug {
|
|
| ^^^^^^^^^^
|
|
|
|
|
= note: `impl Trait` is only allowed in arguments and return types of functions and methods
|
|
|
|
error[E0562]: `impl Trait` is not allowed in impl headers
|
|
--> $DIR/where-allowed.rs:183:24
|
|
|
|
|
LL | impl InInherentImplAdt<impl Debug> {
|
|
| ^^^^^^^^^^
|
|
|
|
|
= note: `impl Trait` is only allowed in arguments and return types of functions and methods
|
|
|
|
error[E0562]: `impl Trait` is not allowed in bounds
|
|
--> $DIR/where-allowed.rs:189:11
|
|
|
|
|
LL | where impl Debug: Debug
|
|
| ^^^^^^^^^^
|
|
|
|
|
= note: `impl Trait` is only allowed in arguments and return types of functions and methods
|
|
|
|
error[E0562]: `impl Trait` is not allowed in bounds
|
|
--> $DIR/where-allowed.rs:196:15
|
|
|
|
|
LL | where Vec<impl Debug>: Debug
|
|
| ^^^^^^^^^^
|
|
|
|
|
= note: `impl Trait` is only allowed in arguments and return types of functions and methods
|
|
|
|
error[E0562]: `impl Trait` is not allowed in bounds
|
|
--> $DIR/where-allowed.rs:203:24
|
|
|
|
|
LL | where T: PartialEq<impl Debug>
|
|
| ^^^^^^^^^^
|
|
|
|
|
= note: `impl Trait` is only allowed in arguments and return types of functions and methods
|
|
|
|
error[E0562]: `impl Trait` is not allowed in the parameters of `Fn` trait bounds
|
|
--> $DIR/where-allowed.rs:210:17
|
|
|
|
|
LL | where T: Fn(impl Debug)
|
|
| ^^^^^^^^^^
|
|
|
|
|
= note: `impl Trait` is only allowed in arguments and return types of functions and methods
|
|
|
|
error[E0562]: `impl Trait` is not allowed in the return type of `Fn` trait bounds
|
|
--> $DIR/where-allowed.rs:217:22
|
|
|
|
|
LL | where T: Fn() -> impl Debug
|
|
| ^^^^^^^^^^
|
|
|
|
|
= note: `impl Trait` is only allowed in arguments and return types of functions and methods
|
|
|
|
error[E0562]: `impl Trait` is not allowed in generic parameter defaults
|
|
--> $DIR/where-allowed.rs:223:40
|
|
|
|
|
LL | struct InStructGenericParamDefault<T = impl Debug>(T);
|
|
| ^^^^^^^^^^
|
|
|
|
|
= note: `impl Trait` is only allowed in arguments and return types of functions and methods
|
|
|
|
error[E0562]: `impl Trait` is not allowed in generic parameter defaults
|
|
--> $DIR/where-allowed.rs:227:36
|
|
|
|
|
LL | enum InEnumGenericParamDefault<T = impl Debug> { Variant(T) }
|
|
| ^^^^^^^^^^
|
|
|
|
|
= note: `impl Trait` is only allowed in arguments and return types of functions and methods
|
|
|
|
error[E0562]: `impl Trait` is not allowed in generic parameter defaults
|
|
--> $DIR/where-allowed.rs:231:38
|
|
|
|
|
LL | trait InTraitGenericParamDefault<T = impl Debug> {}
|
|
| ^^^^^^^^^^
|
|
|
|
|
= note: `impl Trait` is only allowed in arguments and return types of functions and methods
|
|
|
|
error[E0562]: `impl Trait` is not allowed in generic parameter defaults
|
|
--> $DIR/where-allowed.rs:235:41
|
|
|
|
|
LL | type InTypeAliasGenericParamDefault<T = impl Debug> = T;
|
|
| ^^^^^^^^^^
|
|
|
|
|
= note: `impl Trait` is only allowed in arguments and return types of functions and methods
|
|
|
|
error[E0562]: `impl Trait` is not allowed in generic parameter defaults
|
|
--> $DIR/where-allowed.rs:239:11
|
|
|
|
|
LL | impl <T = impl Debug> T {}
|
|
| ^^^^^^^^^^
|
|
|
|
|
= note: `impl Trait` is only allowed in arguments and return types of functions and methods
|
|
|
|
error[E0562]: `impl Trait` is not allowed in generic parameter defaults
|
|
--> $DIR/where-allowed.rs:246:40
|
|
|
|
|
LL | fn in_method_generic_param_default<T = impl Debug>(_: T) {}
|
|
| ^^^^^^^^^^
|
|
|
|
|
= note: `impl Trait` is only allowed in arguments and return types of functions and methods
|
|
|
|
error[E0562]: `impl Trait` is not allowed in the type of variable bindings
|
|
--> $DIR/where-allowed.rs:252:29
|
|
|
|
|
LL | let _in_local_variable: impl Fn() = || {};
|
|
| ^^^^^^^^^
|
|
|
|
|
= note: `impl Trait` is only allowed in arguments and return types of functions and methods
|
|
|
|
error[E0562]: `impl Trait` is not allowed in closure return types
|
|
--> $DIR/where-allowed.rs:254:46
|
|
|
|
|
LL | let _in_return_in_local_variable = || -> impl Fn() { || {} };
|
|
| ^^^^^^^^^
|
|
|
|
|
= note: `impl Trait` is only allowed in arguments and return types of functions and methods
|
|
|
|
error[E0283]: type annotations needed
|
|
--> $DIR/where-allowed.rs:46:57
|
|
|
|
|
LL | fn in_dyn_Fn_return_in_return() -> &'static dyn Fn() -> impl Debug { panic!() }
|
|
| ^^^^^^^^^^ cannot infer type
|
|
|
|
|
= note: cannot satisfy `_: Debug`
|
|
|
|
error[E0283]: type annotations needed
|
|
--> $DIR/where-allowed.rs:64:46
|
|
|
|
|
LL | fn in_impl_Fn_return_in_return() -> &'static impl Fn() -> impl Debug { panic!() }
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^ cannot infer type
|
|
|
|
|
= note: multiple `impl`s satisfying `_: Fn()` found in the following crates: `alloc`, `core`:
|
|
- impl<A, F> Fn<A> for &F
|
|
where A: Tuple, F: Fn<A>, F: ?Sized;
|
|
- impl<Args, F, A> Fn<Args> for Box<F, A>
|
|
where Args: Tuple, F: Fn<Args>, A: Allocator, F: ?Sized;
|
|
|
|
error: defaults for type parameters are only allowed in `struct`, `enum`, `type`, or `trait` definitions
|
|
--> $DIR/where-allowed.rs:239:7
|
|
|
|
|
LL | impl <T = impl Debug> T {}
|
|
| ^^^^^^^^^^^^^^
|
|
|
|
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
|
|
= note: for more information, see issue #36887 <https://github.com/rust-lang/rust/issues/36887>
|
|
= note: `#[deny(invalid_type_param_default)]` on by default
|
|
|
|
error[E0118]: no nominal type found for inherent implementation
|
|
--> $DIR/where-allowed.rs:239:1
|
|
|
|
|
LL | impl <T = impl Debug> T {}
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^ impl requires a nominal type
|
|
|
|
|
= note: either implement a trait on it or create a newtype to wrap it instead
|
|
|
|
error[E0599]: no function or associated item named `into_vec` found for slice `[_]` in the current scope
|
|
--> $DIR/where-allowed.rs:81:5
|
|
|
|
|
LL | vec![vec![0; 10], vec![12; 7], vec![8; 3]]
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function or associated item not found in `[_]`
|
|
|
|
|
help: there is an associated function `to_vec` with a similar name
|
|
--> $SRC_DIR/alloc/src/slice.rs:LL:COL
|
|
= note: this error originates in the macro `vec` (in Nightly builds, run with -Z macro-backtrace for more info)
|
|
|
|
error[E0053]: method `in_trait_impl_return` has an incompatible type for trait
|
|
--> $DIR/where-allowed.rs:129:34
|
|
|
|
|
LL | type Out = impl Debug;
|
|
| ---------- the expected opaque type
|
|
...
|
|
LL | fn in_trait_impl_return() -> impl Debug { () }
|
|
| ^^^^^^^^^^ expected opaque type, found a different opaque type
|
|
|
|
|
note: type in trait
|
|
--> $DIR/where-allowed.rs:119:34
|
|
|
|
|
LL | fn in_trait_impl_return() -> Self::Out;
|
|
| ^^^^^^^^^
|
|
= note: expected signature `fn() -> <() as DummyTrait>::Out`
|
|
found signature `fn() -> impl Debug`
|
|
= note: distinct uses of `impl Trait` result in different opaque types
|
|
help: change the output type to match the trait
|
|
|
|
|
LL | fn in_trait_impl_return() -> <() as DummyTrait>::Out { () }
|
|
| ~~~~~~~~~~~~~~~~~~~~~~~
|
|
|
|
error: unconstrained opaque type
|
|
--> $DIR/where-allowed.rs:122:16
|
|
|
|
|
LL | type Out = impl Debug;
|
|
| ^^^^^^^^^^
|
|
|
|
|
= note: `Out` must be used in combination with a concrete type within the same impl
|
|
|
|
error: defaults for type parameters are only allowed in `struct`, `enum`, `type`, or `trait` definitions
|
|
--> $DIR/where-allowed.rs:246:36
|
|
|
|
|
LL | fn in_method_generic_param_default<T = impl Debug>(_: T) {}
|
|
| ^^^^^^^^^^^^^^
|
|
|
|
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
|
|
= note: for more information, see issue #36887 <https://github.com/rust-lang/rust/issues/36887>
|
|
|
|
error: aborting due to 50 previous errors
|
|
|
|
Some errors have detailed explanations: E0053, E0118, E0283, E0562, E0599, E0658, E0666.
|
|
For more information about an error, try `rustc --explain E0053`.
|
|
Future incompatibility report: Future breakage diagnostic:
|
|
error: defaults for type parameters are only allowed in `struct`, `enum`, `type`, or `trait` definitions
|
|
--> $DIR/where-allowed.rs:239:7
|
|
|
|
|
LL | impl <T = impl Debug> T {}
|
|
| ^^^^^^^^^^^^^^
|
|
|
|
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
|
|
= note: for more information, see issue #36887 <https://github.com/rust-lang/rust/issues/36887>
|
|
= note: `#[deny(invalid_type_param_default)]` on by default
|
|
|
|
Future breakage diagnostic:
|
|
error: defaults for type parameters are only allowed in `struct`, `enum`, `type`, or `trait` definitions
|
|
--> $DIR/where-allowed.rs:246:36
|
|
|
|
|
LL | fn in_method_generic_param_default<T = impl Debug>(_: T) {}
|
|
| ^^^^^^^^^^^^^^
|
|
|
|
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
|
|
= note: for more information, see issue #36887 <https://github.com/rust-lang/rust/issues/36887>
|
|
= note: `#[deny(invalid_type_param_default)]` on by default
|
|
|