mirror of
https://github.com/rust-lang/rust.git
synced 2024-12-11 16:15:03 +00:00
26 lines
1.1 KiB
Plaintext
26 lines
1.1 KiB
Plaintext
error[E0038]: the trait `Bar` cannot be made into an object
|
|
--> $DIR/issue-72410.rs:14:19
|
|
|
|
|
LL | where for<'a> &'a mut [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/issue-72410.rs:13:8
|
|
|
|
|
LL | pub trait Bar {
|
|
| --- this trait cannot be made into an object...
|
|
LL | fn map()
|
|
| ^^^ ...because associated function `map` has no `self` parameter
|
|
help: consider turning `map` into a method by giving it a `&self` argument
|
|
|
|
|
LL | fn map(&self)
|
|
| +++++
|
|
help: alternatively, consider constraining `map` so it does not apply to trait objects
|
|
|
|
|
LL | where for<'a> &'a mut [dyn Bar]:, Self: Sized ;
|
|
| +++++++++++++
|
|
|
|
error: aborting due to previous error
|
|
|
|
For more information about this error, try `rustc --explain E0038`.
|