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Tweak Self: Sized restriction diagnostic output

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This commit is contained in:
Esteban Küber 2020-01-29 12:59:04 -08:00
parent d137b7ac11
commit 4b2f1db6e4
13 changed files with 68 additions and 61 deletions
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4
src/test/ui/feature-gates/feature-gate-object_safe_for_dispatch.stderr
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@ -6,8 +6,6 @@ LL | trait NonObjectSafe1: Sized {}
...
LL | fn takes_non_object_safe_ref<T>(obj: &dyn NonObjectSafe1) {
| ^^^^^^^^^^^^^^^^^^^ the trait `NonObjectSafe1` cannot be made into an object
|
= note: the trait cannot require that `Self : Sized`
error[E0038]: the trait `NonObjectSafe2` cannot be made into an object
--> $DIR/feature-gate-object_safe_for_dispatch.rs:22:36
@ -44,8 +42,6 @@ LL | trait NonObjectSafe1: Sized {}
...
LL | impl Trait for dyn NonObjectSafe1 {}
| ^^^^^ the trait `NonObjectSafe1` cannot be made into an object
|
= note: the trait cannot require that `Self : Sized`
error: aborting due to 5 previous errors

2
src/test/ui/issues/issue-20692.rs
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@ -1,4 +1,4 @@
trait Array: Sized {}
trait Array: Sized + Copy {}
fn f<T: Array>(x: &T) {
let _ = x

15
src/test/ui/issues/issue-20692.stderr
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@ -1,24 +1,25 @@
error[E0038]: the trait `Array` cannot be made into an object
--> $DIR/issue-20692.rs:7:5
|
LL | trait Array: Sized {}
| ----- the trait cannot require that `Self : Sized`
LL | trait Array: Sized + Copy {}
| ----- ---- the trait cannot require that `Self : Sized`
| |
| the trait cannot require that `Self : Sized`
...
LL | &dyn Array;
| ^^^^^^^^^^ the trait `Array` cannot be made into an object
|
= note: the trait cannot require that `Self : Sized`
error[E0038]: the trait `Array` cannot be made into an object
--> $DIR/issue-20692.rs:4:13
|
LL | trait Array: Sized {}
| ----- the trait cannot require that `Self : Sized`
LL | trait Array: Sized + Copy {}
| ----- ---- the trait cannot require that `Self : Sized`
| |
| the trait cannot require that `Self : Sized`
...
LL | let _ = x
| ^ the trait `Array` cannot be made into an object
|
= note: the trait cannot require that `Self : Sized`
= note: required because of the requirements on the impl of `std::ops::CoerceUnsized<&dyn Array>` for `&T`
= note: required by cast to type `&dyn Array`

9
src/test/ui/kindck/kindck-inherited-copy-bound.curr.stderr
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@ -12,18 +12,21 @@ LL | take_param(&x);
error[E0038]: the trait `Foo` cannot be made into an object
--> $DIR/kindck-inherited-copy-bound.rs:28:19
|
LL | trait Foo : Copy {
| ---- the trait cannot require that `Self : Sized`
...
LL | let z = &x as &dyn Foo;
| ^^^^^^^^ the trait `Foo` cannot be made into an object
|
= note: the trait cannot require that `Self : Sized`
error[E0038]: the trait `Foo` cannot be made into an object
--> $DIR/kindck-inherited-copy-bound.rs:28:13
|
LL | trait Foo : Copy {
| ---- the trait cannot require that `Self : Sized`
...
LL | let z = &x as &dyn Foo;
| ^^ the trait `Foo` cannot be made into an object
|
= note: the trait cannot require that `Self : Sized`
= note: required because of the requirements on the impl of `std::ops::CoerceUnsized<&dyn Foo>` for `&std::boxed::Box<{integer}>`
= note: required by cast to type `&dyn Foo`

4
src/test/ui/kindck/kindck-inherited-copy-bound.object_safe_for_dispatch.stderr
View file

@ -12,10 +12,12 @@ LL | take_param(&x);
error[E0038]: the trait `Foo` cannot be made into an object
--> $DIR/kindck-inherited-copy-bound.rs:28:13
|
LL | trait Foo : Copy {
| ---- the trait cannot require that `Self : Sized`
...
LL | let z = &x as &dyn Foo;
| ^^ the trait `Foo` cannot be made into an object
|
= note: the trait cannot require that `Self : Sized`
= note: required because of the requirements on the impl of `std::ops::CoerceUnsized<&dyn Foo>` for `&std::boxed::Box<i32>`
= note: required by cast to type `&dyn Foo`

2
src/test/ui/object-safety/object-safety-sized.curr.stderr
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@ -6,8 +6,6 @@ LL | trait Bar : Sized {
...
LL | fn make_bar<T:Bar>(t: &T) -> &dyn Bar {
| ^^^^^^^^ the trait `Bar` cannot be made into an object
|
= note: the trait cannot require that `Self : Sized`
error: aborting due to previous error

1
src/test/ui/object-safety/object-safety-sized.object_safe_for_dispatch.stderr
View file

@ -7,7 +7,6 @@ LL | trait Bar : Sized {
LL | t
| ^ the trait `Bar` cannot be made into an object
|
= note: the trait cannot require that `Self : Sized`
= note: required because of the requirements on the impl of `std::ops::CoerceUnsized<&dyn Bar>` for `&T`
= note: required by cast to type `&dyn Bar`

2
src/test/ui/suggestions/object-unsafe-trait-should-use-self.stderr
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@ -18,8 +18,6 @@ LL | trait A: Sized {
| ----- the trait cannot require that `Self : Sized`
LL | fn f(a: A) -> A;
| ^ the trait `A` cannot be made into an object
|
= note: the trait cannot require that `Self : Sized`
error: associated item referring to unboxed trait object for its own trait
--> $DIR/object-unsafe-trait-should-use-self.rs:8:13

3
src/test/ui/wf/wf-convert-unsafe-trait-obj-box.stderr
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@ -7,7 +7,6 @@ LL | trait Trait: Sized {}
LL | let t_box: Box<dyn Trait> = Box::new(S);
| ^^^^^^^^^^^ the trait `Trait` cannot be made into an object
|
= note: the trait cannot require that `Self : Sized`
= note: required because of the requirements on the impl of `std::ops::CoerceUnsized<std::boxed::Box<dyn Trait>>` for `std::boxed::Box<S>`
= note: required by cast to type `std::boxed::Box<dyn Trait>`
@ -20,7 +19,6 @@ LL | trait Trait: Sized {}
LL | takes_box(Box::new(S));
| ^^^^^^^^^^^ the trait `Trait` cannot be made into an object
|
= note: the trait cannot require that `Self : Sized`
= note: required because of the requirements on the impl of `std::ops::CoerceUnsized<std::boxed::Box<dyn Trait>>` for `std::boxed::Box<S>`
= note: required by cast to type `std::boxed::Box<(dyn Trait + 'static)>`
@ -33,7 +31,6 @@ LL | trait Trait: Sized {}
LL | Box::new(S) as Box<dyn Trait>;
| ^^^^^^^^^^^ the trait `Trait` cannot be made into an object
|
= note: the trait cannot require that `Self : Sized`
= note: required because of the requirements on the impl of `std::ops::CoerceUnsized<std::boxed::Box<dyn Trait>>` for `std::boxed::Box<S>`
= note: required by cast to type `std::boxed::Box<dyn Trait>`

3
src/test/ui/wf/wf-convert-unsafe-trait-obj.stderr
View file

@ -7,7 +7,6 @@ LL | trait Trait: Sized {}
LL | let t: &dyn Trait = &S;
| ^^ the trait `Trait` cannot be made into an object
|
= note: the trait cannot require that `Self : Sized`
= note: required because of the requirements on the impl of `std::ops::CoerceUnsized<&dyn Trait>` for `&S`
= note: required by cast to type `&dyn Trait`
@ -20,7 +19,6 @@ LL | trait Trait: Sized {}
LL | takes_trait(&S);
| ^^ the trait `Trait` cannot be made into an object
|
= note: the trait cannot require that `Self : Sized`
= note: required because of the requirements on the impl of `std::ops::CoerceUnsized<&dyn Trait>` for `&S`
= note: required by cast to type `&dyn Trait`
@ -33,7 +31,6 @@ LL | trait Trait: Sized {}
LL | &S as &dyn Trait;
| ^^ the trait `Trait` cannot be made into an object
|
= note: the trait cannot require that `Self : Sized`
= note: required because of the requirements on the impl of `std::ops::CoerceUnsized<&dyn Trait>` for `&S`
= note: required by cast to type `&dyn Trait`

2
src/test/ui/wf/wf-unsafe-trait-obj-match.stderr
View file

@ -21,7 +21,6 @@ LL | trait Trait: Sized {}
LL | Some(()) => &S,
| ^^ the trait `Trait` cannot be made into an object
|
= note: the trait cannot require that `Self : Sized`
= note: required because of the requirements on the impl of `std::ops::CoerceUnsized<&dyn Trait>` for `&S`
= note: required by cast to type `&dyn Trait`
@ -34,7 +33,6 @@ LL | trait Trait: Sized {}
LL | let t: &dyn Trait = match opt() {
| ^^^^^^^^^^^ the trait `Trait` cannot be made into an object
|
= note: the trait cannot require that `Self : Sized`
= note: required because of the requirements on the impl of `std::ops::CoerceUnsized<&dyn Trait>` for `&R`
= note: required by cast to type `&dyn Trait`