blob: c1d5dd6f562f7de576b7c0f60cd267a0beb67e3c (
plain)
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
|
error[E0038]: the trait `Foo` is not dyn compatible
--> $DIR/no-static.rs:8:22
|
LL | fn diverges() -> Box<dyn Foo> {
| ^^^^^^^ `Foo` is not dyn compatible
|
note: for a trait to be dyn compatible it needs to allow building a vtable
for more information, visit <https://doc.rust-lang.org/reference/items/traits.html#dyn-compatibility>
--> $DIR/no-static.rs:5:8
|
LL | trait Foo {
| --- this trait is not dyn compatible...
LL | fn foo() {}
| ^^^ ...because associated function `foo` has no `self` parameter
= help: only type `Bar` implements `Foo`; consider using it directly instead.
help: consider turning `foo` into a method by giving it a `&self` argument
|
LL | fn foo(&self) {}
| +++++
help: alternatively, consider constraining `foo` so it does not apply to trait objects
|
LL | fn foo() where Self: Sized {}
| +++++++++++++++++
error[E0038]: the trait `Foo` is not dyn compatible
--> $DIR/no-static.rs:18:20
|
LL | let b: Box<dyn Foo> = Box::new(Bar);
| ^^^ `Foo` is not dyn compatible
|
note: for a trait to be dyn compatible it needs to allow building a vtable
for more information, visit <https://doc.rust-lang.org/reference/items/traits.html#dyn-compatibility>
--> $DIR/no-static.rs:5:8
|
LL | trait Foo {
| --- this trait is not dyn compatible...
LL | fn foo() {}
| ^^^ ...because associated function `foo` has no `self` parameter
= help: only type `Bar` implements `Foo`; consider using it directly instead.
help: consider turning `foo` into a method by giving it a `&self` argument
|
LL | fn foo(&self) {}
| +++++
help: alternatively, consider constraining `foo` so it does not apply to trait objects
|
LL | fn foo() where Self: Sized {}
| +++++++++++++++++
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0038`.
|