mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-26 00:34:06 +00:00
29 lines
1.0 KiB
Rust
29 lines
1.0 KiB
Rust
struct S1<T>(T) where (T): ?Sized;
|
|
//~^ ERROR `?Trait` bounds are only permitted at the point where a type parameter is declared
|
|
|
|
struct S2<T>(T) where u8: ?Sized;
|
|
//~^ ERROR `?Trait` bounds are only permitted at the point where a type parameter is declared
|
|
|
|
struct S3<T>(T) where &'static T: ?Sized;
|
|
//~^ ERROR `?Trait` bounds are only permitted at the point where a type parameter is declared
|
|
|
|
trait Trait<'a> {}
|
|
|
|
struct S4<T>(T) where for<'a> T: ?Trait<'a>;
|
|
//~^ ERROR `?Trait` bounds are only permitted at the point where a type parameter is declared
|
|
//~| WARN relaxing a default bound only does something for `?Sized`
|
|
|
|
struct S5<T>(*const T) where T: ?Trait<'static> + ?Sized;
|
|
//~^ ERROR type parameter has more than one relaxed default bound
|
|
//~| WARN relaxing a default bound only does something for `?Sized`
|
|
|
|
impl<T> S1<T> {
|
|
fn f() where T: ?Sized {}
|
|
//~^ ERROR `?Trait` bounds are only permitted at the point where a type parameter is declared
|
|
}
|
|
|
|
fn main() {
|
|
let u = vec![1, 2, 3];
|
|
let _s: S5<[u8]> = S5(&u[..]); // OK
|
|
}
|