mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-27 01:04:03 +00:00
a9841936fe
Change the implicit `Sized` `Obligation` `Span` for call expressions to include the whole expression. This aids the existing deduplication machinery to reduce the number of errors caused by a single unsized expression.
71 lines
3.5 KiB
Plaintext
71 lines
3.5 KiB
Plaintext
error[E0277]: the trait bound `&dyn MyTrait: MyTrait` is not satisfied
|
|
--> $DIR/cycle-effective-visibilities-during-object-safety.rs:20:22
|
|
|
|
|
LL | MyTrait::foo(&self)
|
|
| ------------ ^^^^^ the trait `MyTrait` is not implemented for `&dyn MyTrait`
|
|
| |
|
|
| required by a bound introduced by this call
|
|
|
|
|
= help: the trait `MyTrait` is implemented for `Outer`
|
|
|
|
error[E0038]: the trait `MyTrait` cannot be made into an object
|
|
--> $DIR/cycle-effective-visibilities-during-object-safety.rs:20:9
|
|
|
|
|
LL | MyTrait::foo(&self)
|
|
| ^^^^^^^^^^^^ `MyTrait` cannot be made into an object
|
|
|
|
|
note: for a trait to be "object safe" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety>
|
|
--> $DIR/cycle-effective-visibilities-during-object-safety.rs:5:22
|
|
|
|
|
LL | trait MyTrait {
|
|
| ------- this trait cannot be made into an object...
|
|
LL | fn foo(&self) -> impl Marker;
|
|
| ^^^^^^^^^^^ ...because method `foo` references an `impl Trait` type in its return type
|
|
= help: consider moving `foo` to another trait
|
|
= help: only type `Outer` implements the trait, consider using it directly instead
|
|
|
|
error[E0277]: the trait bound `&dyn MyTrait: MyTrait` is not satisfied
|
|
--> $DIR/cycle-effective-visibilities-during-object-safety.rs:20:9
|
|
|
|
|
LL | MyTrait::foo(&self)
|
|
| ^^^^^^^^^^^^^^^^^^^ the trait `MyTrait` is not implemented for `&dyn MyTrait`
|
|
|
|
|
= help: the trait `MyTrait` is implemented for `Outer`
|
|
|
|
error[E0038]: the trait `MyTrait` cannot be made into an object
|
|
--> $DIR/cycle-effective-visibilities-during-object-safety.rs:16:6
|
|
|
|
|
LL | impl dyn MyTrait {
|
|
| ^^^^^^^^^^^ `MyTrait` cannot be made into an object
|
|
|
|
|
note: for a trait to be "object safe" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety>
|
|
--> $DIR/cycle-effective-visibilities-during-object-safety.rs:5:22
|
|
|
|
|
LL | trait MyTrait {
|
|
| ------- this trait cannot be made into an object...
|
|
LL | fn foo(&self) -> impl Marker;
|
|
| ^^^^^^^^^^^ ...because method `foo` references an `impl Trait` type in its return type
|
|
= help: consider moving `foo` to another trait
|
|
= help: only type `Outer` implements the trait, consider using it directly instead
|
|
|
|
error[E0038]: the trait `MyTrait` cannot be made into an object
|
|
--> $DIR/cycle-effective-visibilities-during-object-safety.rs:18:15
|
|
|
|
|
LL | fn other(&self) -> impl Marker {
|
|
| ^^^^ `MyTrait` cannot be made into an object
|
|
|
|
|
note: for a trait to be "object safe" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety>
|
|
--> $DIR/cycle-effective-visibilities-during-object-safety.rs:5:22
|
|
|
|
|
LL | trait MyTrait {
|
|
| ------- this trait cannot be made into an object...
|
|
LL | fn foo(&self) -> impl Marker;
|
|
| ^^^^^^^^^^^ ...because method `foo` references an `impl Trait` type in its return type
|
|
= help: consider moving `foo` to another trait
|
|
= help: only type `Outer` implements the trait, consider using it directly instead
|
|
|
|
error: aborting due to 5 previous errors
|
|
|
|
Some errors have detailed explanations: E0038, E0277.
|
|
For more information about an error, try `rustc --explain E0038`.
|