| error[E0277]: the size for values of type `T` cannot be known at compilation time |
| --> $DIR/unsized-struct.rs:6:36 |
| | |
| LL | fn foo2<T: ?Sized>() { not_sized::<Foo<T>>() } |
| | - ^^^^^^ doesn't have a size known at compile-time |
| | | |
| | this type parameter needs to be `Sized` |
| | |
| note: required by an implicit `Sized` bound in `Foo` |
| --> $DIR/unsized-struct.rs:4:12 |
| | |
| LL | struct Foo<T> { data: T } |
| | ^ required by the implicit `Sized` requirement on this type parameter in `Foo` |
| help: you could relax the implicit `Sized` bound on `T` if it were used through indirection like `&T` or `Box<T>` |
| --> $DIR/unsized-struct.rs:4:12 |
| | |
| LL | struct Foo<T> { data: T } |
| | ^ - ...if indirection were used here: `Box<T>` |
| | | |
| | this could be changed to `T: ?Sized`... |
| help: consider removing the `?Sized` bound to make the type parameter `Sized` |
| | |
| LL - fn foo2<T: ?Sized>() { not_sized::<Foo<T>>() } |
| LL + fn foo2<T>() { not_sized::<Foo<T>>() } |
| | |
| |
| error[E0277]: the size for values of type `T` cannot be known at compilation time |
| --> $DIR/unsized-struct.rs:13:35 |
| | |
| LL | fn bar2<T: ?Sized>() { is_sized::<Bar<T>>() } |
| | - ^^^^^^ doesn't have a size known at compile-time |
| | | |
| | this type parameter needs to be `Sized` |
| | |
| note: required because it appears within the type `Bar<T>` |
| --> $DIR/unsized-struct.rs:11:8 |
| | |
| LL | struct Bar<T: ?Sized> { data: T } |
| | ^^^ |
| note: required by a bound in `is_sized` |
| --> $DIR/unsized-struct.rs:1:15 |
| | |
| LL | fn is_sized<T:Sized>() { } |
| | ^^^^^ required by this bound in `is_sized` |
| help: consider removing the `?Sized` bound to make the type parameter `Sized` |
| | |
| LL - fn bar2<T: ?Sized>() { is_sized::<Bar<T>>() } |
| LL + fn bar2<T>() { is_sized::<Bar<T>>() } |
| | |
| |
| error: aborting due to 2 previous errors |
| |
| For more information about this error, try `rustc --explain E0277`. |
