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Point at return expression for RPIT-related error

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This commit is contained in:
Michael Goulet 2022-06-06 23:20:13 -07:00
parent dc80ca78b6
commit 52409c4c90
14 changed files with 97 additions and 5 deletions
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3
src/test/ui/associated-types/impl-trait-return-missing-constraint.stderr
View file

@ -6,6 +6,9 @@ LL | fn bar() -> impl Bar {
...
LL | fn baz() -> impl Bar<Item = i32> {
| ^^^^^^^^^^^^^^^^^^^^ expected associated type, found `i32`
LL |
LL | bar()
| ----- return type was inferred to be `impl Bar` here
|
= note: expected associated type `<impl Bar as Foo>::Item`
found type `i32`

9
src/test/ui/const-generics/defaults/rp_impl_trait_fail.stderr
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@ -3,6 +3,9 @@ error[E0277]: the trait bound `Uwu<10_u32, 12_u32>: Trait` is not satisfied
|
LL | fn rawr() -> impl Trait {
| ^^^^^^^^^^ the trait `Trait` is not implemented for `Uwu<10_u32, 12_u32>`
LL |
LL | Uwu::<10, 12>
| ------------- return type was inferred to be `Uwu<10_u32, 12_u32>` here
|
= help: the trait `Trait` is implemented for `Uwu<N>`
@ -11,6 +14,9 @@ error[E0277]: the trait bound `u32: Traitor<N>` is not satisfied
|
LL | fn uwu<const N: u8>() -> impl Traitor<N> {
| ^^^^^^^^^^^^^^^ the trait `Traitor<N>` is not implemented for `u32`
LL |
LL | 1_u32
| ----- return type was inferred to be `u32` here
|
= help: the following other types implement trait `Traitor<N, M>`:
<u32 as Traitor<N, 2_u8>>
@ -21,6 +27,9 @@ error[E0277]: the trait bound `u64: Traitor` is not satisfied
|
LL | fn owo() -> impl Traitor {
| ^^^^^^^^^^^^ the trait `Traitor` is not implemented for `u64`
LL |
LL | 1_u64
| ----- return type was inferred to be `u64` here
|
= help: the following other types implement trait `Traitor<N, M>`:
<u32 as Traitor<N, 2_u8>>

6
src/test/ui/impl-trait/bound-normalization-fail.stderr
View file

@ -3,6 +3,9 @@ error[E0271]: type mismatch resolving `<Foo<()> as FooLike>::Output == <T as imp
|
LL | fn foo_fail<T: Trait>() -> impl FooLike<Output = T::Assoc> {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ type mismatch resolving `<Foo<()> as FooLike>::Output == <T as impl_trait::Trait>::Assoc`
LL |
LL | Foo(())
| ------- return type was inferred to be `Foo<()>` here
|
note: expected this to be `()`
--> $DIR/bound-normalization-fail.rs:14:19
@ -27,6 +30,9 @@ error[E0271]: type mismatch resolving `<Foo<()> as FooLike>::Output == <T as lif
|
LL | fn foo2_fail<'a, T: Trait<'a>>() -> impl FooLike<Output = T::Assoc> {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ type mismatch resolving `<Foo<()> as FooLike>::Output == <T as lifetimes::Trait<'static>>::Assoc`
...
LL | Foo(())
| ------- return type was inferred to be `Foo<()>` here
|
note: expected this to be `()`
--> $DIR/bound-normalization-fail.rs:14:19

3
src/test/ui/issues-71798.stderr
View file

@ -9,6 +9,9 @@ error[E0277]: `u32` is not a future
|
LL | fn test_ref(x: &u32) -> impl std::future::Future<Output = u32> + '_ {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `u32` is not a future
LL |
LL | *x
| -- return type was inferred to be `u32` here
|
= help: the trait `Future` is not implemented for `u32`
= note: u32 must be a future or must implement `IntoFuture` to be awaited

3
src/test/ui/type-alias-impl-trait/nested-tait-inference.stderr
View file

@ -3,6 +3,9 @@ error[E0277]: the trait bound `(): Foo<FooX>` is not satisfied
|
LL | fn foo() -> impl Foo<FooX> {
| ^^^^^^^^^^^^^^ the trait `Foo<FooX>` is not implemented for `()`
...
LL | ()
| -- return type was inferred to be `()` here
|
= help: the trait `Foo<()>` is implemented for `()`

3
src/test/ui/type-alias-impl-trait/nested-tait-inference2.stderr
View file

@ -3,6 +3,9 @@ error[E0277]: the trait bound `(): Foo<FooX>` is not satisfied
|
LL | fn foo() -> impl Foo<FooX> {
| ^^^^^^^^^^^^^^ the trait `Foo<FooX>` is not implemented for `()`
LL |
LL | ()
| -- return type was inferred to be `()` here
|
= help: the following other types implement trait `Foo<A>`:
<() as Foo<()>>