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Add a note about feature(explicit_generic_args_with_impl_trait) to the relevant error message

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This commit is contained in:
Jakub Kądziołka 2021-11-08 18:39:22 +01:00
parent 3e3890c9d4
commit 048e1c942d
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6 changed files with 32 additions and 0 deletions
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11
compiler/rustc_typeck/src/astconv/generics.rs
View File

@ -672,6 +672,17 @@ pub(crate) fn check_impl_trait(
err.span_label(span, "explicit generic argument not allowed");
}
err.note(
"see issue #83701 <https://github.com/rust-lang/rust/issues/83701> \
for more information",
);
if tcx.sess.is_nightly_build() {
err.help(
"add `#![feature(explicit_generic_args_with_impl_trait)]` \
to the crate attributes to enable",
);
}
err.emit();
}

3
src/test/ui/const-generics/impl-trait-with-const-arguments.stderr
View File

@ -3,6 +3,9 @@ error[E0632]: cannot provide explicit generic arguments when `impl Trait` is use
|
LL | assert_eq!(f::<4usize>(Usizable), 20usize);
| ^^^^^^ explicit generic argument not allowed
|
= note: see issue #83701 <https://github.com/rust-lang/rust/issues/83701> for more information
= help: add `#![feature(explicit_generic_args_with_impl_trait)]` to the crate attributes to enable
error: aborting due to previous error

3
src/test/ui/impl-trait/explicit-generic-args-with-impl-trait/feature-gate.stderr
View File

@ -3,6 +3,9 @@ error[E0632]: cannot provide explicit generic arguments when `impl Trait` is use
|
LL | foo::<str>("".to_string());
| ^^^ explicit generic argument not allowed
|
= note: see issue #83701 <https://github.com/rust-lang/rust/issues/83701> for more information
= help: add `#![feature(explicit_generic_args_with_impl_trait)]` to the crate attributes to enable
error: aborting due to previous error

3
src/test/ui/impl-trait/issues/universal-issue-48703.stderr
View File

@ -3,6 +3,9 @@ error[E0632]: cannot provide explicit generic arguments when `impl Trait` is use
|
LL | foo::<String>('a');
| ^^^^^^ explicit generic argument not allowed
|
= note: see issue #83701 <https://github.com/rust-lang/rust/issues/83701> for more information
= help: add `#![feature(explicit_generic_args_with_impl_trait)]` to the crate attributes to enable
error: aborting due to previous error

3
src/test/ui/impl-trait/issues/universal-turbofish-in-method-issue-50950.stderr
View File

@ -5,6 +5,9 @@ LL | evt.handle_event::<TestEvent, fn(TestEvent)>(|_evt| {
| ^^^^^^^^^ ^^^^^^^^^^^^^ explicit generic argument not allowed
| |
| explicit generic argument not allowed
|
= note: see issue #83701 <https://github.com/rust-lang/rust/issues/83701> for more information
= help: add `#![feature(explicit_generic_args_with_impl_trait)]` to the crate attributes to enable
error: aborting due to previous error

9
src/test/ui/synthetic-param.stderr
View File

@ -3,18 +3,27 @@ error[E0632]: cannot provide explicit generic arguments when `impl Trait` is use
|
LL | func::<u8>(42);
| ^^ explicit generic argument not allowed
|
= note: see issue #83701 <https://github.com/rust-lang/rust/issues/83701> for more information
= help: add `#![feature(explicit_generic_args_with_impl_trait)]` to the crate attributes to enable
error[E0632]: cannot provide explicit generic arguments when `impl Trait` is used in argument position
--> $DIR/synthetic-param.rs:23:17
|
LL | Foo::func::<u8>(42);
| ^^ explicit generic argument not allowed
|
= note: see issue #83701 <https://github.com/rust-lang/rust/issues/83701> for more information
= help: add `#![feature(explicit_generic_args_with_impl_trait)]` to the crate attributes to enable
error[E0632]: cannot provide explicit generic arguments when `impl Trait` is used in argument position
--> $DIR/synthetic-param.rs:26:23
|
LL | Bar::<i8>::func::<u8>(42);
| ^^ explicit generic argument not allowed
|
= note: see issue #83701 <https://github.com/rust-lang/rust/issues/83701> for more information
= help: add `#![feature(explicit_generic_args_with_impl_trait)]` to the crate attributes to enable
error: aborting due to 3 previous errors