1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
|
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`.
|
