| error[E0038]: the trait `Tr` is not dyn compatible |
| --> $DIR/safety.rs:15:17 |
| | |
| LL | let _: &dyn Tr = &St; |
| | ^^ `Tr` 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/safety.rs:4:8 |
| | |
| LL | trait Tr { |
| | -- this trait is not dyn compatible... |
| LL | fn foo(); |
| | ^^^ ...because associated function `foo` has no `self` parameter |
| = help: only type `St` implements `Tr`; 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 1 previous error |
| |
| For more information about this error, try `rustc --explain E0038`. |
