mirror of https://github.com/rust-lang/rust.git
34 lines
1.6 KiB
Plaintext
34 lines
1.6 KiB
Plaintext
error[E0038]: the trait `Bar` cannot be made into an object
|
|
--> $DIR/object-safety-generics.rs:18:31
|
|
|
|
|
LL | fn make_bar<T:Bar>(t: &T) -> &dyn Bar {
|
|
| ^^^^^^^ `Bar` 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-generics.rs:10:8
|
|
|
|
|
LL | trait Bar {
|
|
| --- this trait cannot be made into an object...
|
|
LL | fn bar<T>(&self, t: T);
|
|
| ^^^ ...because method `bar` has generic type parameters
|
|
= help: consider moving `bar` to another trait
|
|
|
|
error[E0038]: the trait `Bar` cannot be made into an object
|
|
--> $DIR/object-safety-generics.rs:24:40
|
|
|
|
|
LL | fn make_bar_explicit<T:Bar>(t: &T) -> &dyn Bar {
|
|
| ^^^^^^^ `Bar` 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-generics.rs:10:8
|
|
|
|
|
LL | trait Bar {
|
|
| --- this trait cannot be made into an object...
|
|
LL | fn bar<T>(&self, t: T);
|
|
| ^^^ ...because method `bar` has generic type parameters
|
|
= help: consider moving `bar` to another trait
|
|
|
|
error: aborting due to 2 previous errors
|
|
|
|
For more information about this error, try `rustc --explain E0038`.
|