mirror of
https://github.com/rust-lang/rust.git
synced 2024-12-04 12:44:40 +00:00
18 lines
772 B
Plaintext
18 lines
772 B
Plaintext
error[E0038]: the trait `X` cannot be made into an object
|
|
--> $DIR/object-safety-bounds.rs:7:15
|
|
|
|
|
LL | fn f() -> Box<dyn X<U = u32>> {
|
|
| ^^^^^^^^^^^^^^ `X` 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/object-safety-bounds.rs:4:13
|
|
|
|
|
LL | trait X {
|
|
| - this trait cannot be made into an object...
|
|
LL | type U: PartialEq<Self>;
|
|
| ^^^^^^^^^^^^^^^ ...because it uses `Self` as a type parameter
|
|
|
|
error: aborting due to 1 previous error
|
|
|
|
For more information about this error, try `rustc --explain E0038`.
|