mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-23 15:23:46 +00:00
21 lines
778 B
Plaintext
21 lines
778 B
Plaintext
error[E0277]: the size for values of type `(dyn Fn() -> Fut + 'static)` cannot be known at compilation time
|
|
--> $DIR/dont-elaborate-non-self.rs:7:11
|
|
|
|
|
LL | fn f<Fut>(a: dyn F<Fut>) {}
|
|
| ^ doesn't have a size known at compile-time
|
|
|
|
|
= help: the trait `Sized` is not implemented for `(dyn Fn() -> Fut + 'static)`
|
|
= help: unsized fn params are gated as an unstable feature
|
|
help: you can use `impl Trait` as the argument type
|
|
|
|
|
LL | fn f<Fut>(a: impl F<Fut>) {}
|
|
| ~~~~
|
|
help: function arguments must have a statically known size, borrowed types always have a known size
|
|
|
|
|
LL | fn f<Fut>(a: &dyn F<Fut>) {}
|
|
| +
|
|
|
|
error: aborting due to previous error
|
|
|
|
For more information about this error, try `rustc --explain E0277`.
|