mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-01 06:51:58 +00:00
16 lines
1.1 KiB
Plaintext
16 lines
1.1 KiB
Plaintext
error[E0746]: return type cannot have an unboxed trait object
|
|
--> $DIR/issue-91801.rs:8:77
|
|
|
|
|
LL | fn or<'a>(first: &'static Validator<'a>, second: &'static Validator<'a>) -> Validator<'a> {
|
|
| ^^^^^^^^^^^^^ doesn't have a size known at compile-time
|
|
|
|
|
= note: for information on `impl Trait`, see <https://doc.rust-lang.org/book/ch10-02-traits.html#returning-types-that-implement-traits>
|
|
help: use `impl Fn(&'a Something) -> Result<(), ()> + Send + Sync + 'a` as the return type, as all return paths are of type `Box<[closure@$DIR/issue-91801.rs:10:21: 10:70]>`, which implements `Fn(&'a Something) -> Result<(), ()> + Send + Sync + 'a`
|
|
|
|
|
LL | fn or<'a>(first: &'static Validator<'a>, second: &'static Validator<'a>) -> impl Fn(&'a Something) -> Result<(), ()> + Send + Sync + 'a {
|
|
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
|
|
error: aborting due to previous error
|
|
|
|
For more information about this error, try `rustc --explain E0746`.
|