rust/tests/ui/coherence/coherence-impl-trait-for-tr...

28 lines
1.4 KiB
Plaintext

error[E0038]: the trait `NotObjectSafe` cannot be made into an object
--> $DIR/coherence-impl-trait-for-trait-object-safe.rs:7:24
|
LL | impl NotObjectSafe for dyn NotObjectSafe { }
| ^^^^^^^^^^^^^^^^^ `NotObjectSafe` 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/coherence-impl-trait-for-trait-object-safe.rs:6:43
|
LL | trait NotObjectSafe { fn eq(&self, other: Self); }
| ------------- ^^^^ ...because method `eq` references the `Self` type in this parameter
| |
| this trait cannot be made into an object...
= help: consider moving `eq` to another trait
error[E0046]: not all trait items implemented, missing: `eq`
--> $DIR/coherence-impl-trait-for-trait-object-safe.rs:7:1
|
LL | trait NotObjectSafe { fn eq(&self, other: Self); }
| -------------------------- `eq` from trait
LL | impl NotObjectSafe for dyn NotObjectSafe { }
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `eq` in implementation
error: aborting due to 2 previous errors
Some errors have detailed explanations: E0038, E0046.
For more information about an error, try `rustc --explain E0038`.