mirror of https://github.com/rust-lang/rust
74 lines
3.2 KiB
Plaintext
74 lines
3.2 KiB
Plaintext
error[E0038]: the trait `Qiz` cannot be made into an object
|
|
--> $DIR/issue-19380.rs:11:29
|
|
|
|
|
LL | foos: &'static [&'static (dyn Qiz + 'static)]
|
|
| ^^^^^^^^^^^^^^^^^ `Qiz` 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-19380.rs:2:6
|
|
|
|
|
LL | trait Qiz {
|
|
| --- this trait cannot be made into an object...
|
|
LL | fn qiz();
|
|
| ^^^ ...because associated function `qiz` has no `self` parameter
|
|
= help: only type `Foo` implements the trait, consider using it directly instead
|
|
help: consider turning `qiz` into a method by giving it a `&self` argument
|
|
|
|
|
LL | fn qiz(&self);
|
|
| +++++
|
|
help: alternatively, consider constraining `qiz` so it does not apply to trait objects
|
|
|
|
|
LL | fn qiz() where Self: Sized;
|
|
| +++++++++++++++++
|
|
|
|
error[E0038]: the trait `Qiz` cannot be made into an object
|
|
--> $DIR/issue-19380.rs:16:33
|
|
|
|
|
LL | const BAR : Bar = Bar { foos: &[&FOO]};
|
|
| ^^^^ `Qiz` 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-19380.rs:2:6
|
|
|
|
|
LL | trait Qiz {
|
|
| --- this trait cannot be made into an object...
|
|
LL | fn qiz();
|
|
| ^^^ ...because associated function `qiz` has no `self` parameter
|
|
= help: only type `Foo` implements the trait, consider using it directly instead
|
|
= note: required for the cast from `&Foo` to `&'static (dyn Qiz + 'static)`
|
|
help: consider turning `qiz` into a method by giving it a `&self` argument
|
|
|
|
|
LL | fn qiz(&self);
|
|
| +++++
|
|
help: alternatively, consider constraining `qiz` so it does not apply to trait objects
|
|
|
|
|
LL | fn qiz() where Self: Sized;
|
|
| +++++++++++++++++
|
|
|
|
error[E0038]: the trait `Qiz` cannot be made into an object
|
|
--> $DIR/issue-19380.rs:16:31
|
|
|
|
|
LL | const BAR : Bar = Bar { foos: &[&FOO]};
|
|
| ^^^^^^^ `Qiz` 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-19380.rs:2:6
|
|
|
|
|
LL | trait Qiz {
|
|
| --- this trait cannot be made into an object...
|
|
LL | fn qiz();
|
|
| ^^^ ...because associated function `qiz` has no `self` parameter
|
|
= help: only type `Foo` implements the trait, consider using it directly instead
|
|
help: consider turning `qiz` into a method by giving it a `&self` argument
|
|
|
|
|
LL | fn qiz(&self);
|
|
| +++++
|
|
help: alternatively, consider constraining `qiz` so it does not apply to trait objects
|
|
|
|
|
LL | fn qiz() where Self: Sized;
|
|
| +++++++++++++++++
|
|
|
|
error: aborting due to 3 previous errors
|
|
|
|
For more information about this error, try `rustc --explain E0038`.
|