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sort suggestions for object diagnostic

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This commit is contained in:
Michael Goulet 2024-02-08 18:56:52 +00:00
parent 9322882ade
commit 540be28f6c
4 changed files with 7 additions and 6 deletions
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3
compiler/rustc_infer/src/traits/error_reporting/mod.rs
View File

@ -178,12 +178,13 @@ pub fn report_object_safety_error<'tcx>(
)));
}
impls => {
let types = impls
let mut types = impls
.iter()
.map(|t| {
with_no_trimmed_paths!(format!(" {}", tcx.type_of(*t).instantiate_identity(),))
})
.collect::<Vec<_>>();
types.sort();
err.help(format!(
"the following types implement the trait, consider defining an enum where each \
variant holds one of these types, implementing `{}` for this new enum and using \

2
tests/ui/generic-associated-types/gat-in-trait-path.base.stderr
View File

@ -13,8 +13,8 @@ LL | type A<'a> where Self: 'a;
| ^ ...because it contains the generic associated type `A`
= help: consider moving `A` to another trait
= help: the following types implement the trait, consider defining an enum where each variant holds one of these types, implementing `Foo` for this new enum and using it instead:
Fooy
Fooer<T>
Fooy
error: aborting due to 1 previous error

4
tests/ui/generic-associated-types/issue-79422.base.stderr
View File

@ -29,8 +29,8 @@ LL | type VRefCont<'a>: RefCont<'a, V> where Self: 'a;
| ^^^^^^^^ ...because it contains the generic associated type `VRefCont`
= help: consider moving `VRefCont` to another trait
= help: the following types implement the trait, consider defining an enum where each variant holds one of these types, implementing `MapLike` for this new enum and using it instead:
std::collections::BTreeMap<K, V>
Source
std::collections::BTreeMap<K, V>
error[E0038]: the trait `MapLike` cannot be made into an object
--> $DIR/issue-79422.rs:44:13
@ -47,8 +47,8 @@ LL | type VRefCont<'a>: RefCont<'a, V> where Self: 'a;
| ^^^^^^^^ ...because it contains the generic associated type `VRefCont`
= help: consider moving `VRefCont` to another trait
= help: the following types implement the trait, consider defining an enum where each variant holds one of these types, implementing `MapLike` for this new enum and using it instead:
std::collections::BTreeMap<K, V>
Source
std::collections::BTreeMap<K, V>
= note: required for the cast from `Box<BTreeMap<u8, u8>>` to `Box<dyn MapLike<u8, u8, VRefCont = (dyn RefCont<'_, u8> + 'static)>>`
error: aborting due to 3 previous errors

4
tests/ui/wf/wf-unsafe-trait-obj-match.stderr
View File

@ -30,8 +30,8 @@ LL | trait Trait: Sized {}
| |
| this trait cannot be made into an object...
= help: the following types implement the trait, consider defining an enum where each variant holds one of these types, implementing `Trait` for this new enum and using it instead:
S
R
S
= note: required for the cast from `&S` to `&dyn Trait`
error[E0038]: the trait `Trait` cannot be made into an object
@ -52,8 +52,8 @@ LL | trait Trait: Sized {}
| |
| this trait cannot be made into an object...
= help: the following types implement the trait, consider defining an enum where each variant holds one of these types, implementing `Trait` for this new enum and using it instead:
S
R
S
= note: required for the cast from `&R` to `&dyn Trait`
error: aborting due to 3 previous errors