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
|
error[E0038]: the trait `issue_3907::Foo` cannot be made into an object
--> $DIR/issue-3907-2.rs:11:12
|
LL | fn bar(_x: Foo) {}
| ^^^ `issue_3907::Foo` cannot be made into an object
|
note: for a trait to be "dyn-compatible" 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/auxiliary/issue-3907.rs:2:8
|
LL | fn bar();
| ^^^ the trait cannot be made into an object because associated function `bar` has no `self` parameter
error[E0277]: the size for values of type `(dyn issue_3907::Foo + 'static)` cannot be known at compilation time
--> $DIR/issue-3907-2.rs:11:12
|
LL | fn bar(_x: Foo) {}
| ^^^ doesn't have a size known at compile-time
|
= help: the trait `Sized` is not implemented for `(dyn issue_3907::Foo + 'static)`
= help: unsized fn params are gated as an unstable feature
help: function arguments must have a statically known size, borrowed types always have a known size
|
LL | fn bar(_x: &Foo) {}
| +
error: aborting due to 2 previous errors
Some errors have detailed explanations: E0038, E0277.
For more information about an error, try `rustc --explain E0038`.
|
