rust/src/test/ui/unsized/unsized-enum.stderr

18 lines
815 B
Plaintext
Raw Normal View History

2018-08-08 07:28:26 -05:00
error[E0277]: the size for values of type `T` cannot be known at compilation time
2018-12-25 09:56:47 -06:00
--> $DIR/unsized-enum.rs:6:36
2018-08-08 07:28:26 -05:00
|
LL | enum Foo<U> { FooSome(U), FooNone }
| ----------- required by `Foo`
LL | fn foo1<T>() { not_sized::<Foo<T>>() } // Hunky dory.
2018-08-08 07:28:26 -05:00
LL | fn foo2<T: ?Sized>() { not_sized::<Foo<T>>() }
| -- ^^^^^^ doesn't have a size known at compile-time
| |
| help: consider further restricting this bound: `T: std::marker::Sized +`
2018-08-08 07:28:26 -05:00
|
= help: the trait `std::marker::Sized` is not implemented for `T`
= note: to learn more, visit <https://doc.rust-lang.org/book/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>
2018-08-08 07:28:26 -05:00
error: aborting due to previous error
For more information about this error, try `rustc --explain E0277`.