19 lines
769 B
Plaintext
19 lines
769 B
Plaintext
|
error[E0277]: the size for values of type `T` cannot be known at compilation time
|
||
|
|
--> $DIR/unsized-enum.rs:17:36
|
||
|
|
|
|
||
|
|
LL | fn foo2<T: ?Sized>() { not_sized::<Foo<T>>() }
|
||
|
|
| ^^^^^^ doesn't have a size known at compile-time
|
||
|
|
|
|
||
|
|
= help: the trait `std::marker::Sized` is not implemented for `T`
|
||
|
|
= note: to learn more, visit <https://doc.rust-lang.org/book/second-edition/ch19-04-advanced-types.html#dynamically-sized-types-and-sized>
|
||
|
|
= help: consider adding a `where T: std::marker::Sized` bound
|
||
|
|
note: required by `Foo`
|
||
|
|
--> $DIR/unsized-enum.rs:15:1
|
||
|
|
|
|
||
|
|
LL | enum Foo<U> { FooSome(U), FooNone }
|
||
|
|
| ^^^^^^^^^^^
|
||
|
|
|
||
|
|
error: aborting due to previous error
|
||
|
|
|
||
|
|
For more information about this error, try `rustc --explain E0277`.
|