22 lines
464 B
Rust
22 lines
464 B
Rust
//@ compile-flags: -Znext-solver
|
|
//@ check-pass
|
|
#![feature(ptr_metadata)]
|
|
|
|
use std::ptr::{DynMetadata, Pointee};
|
|
|
|
trait Trait<U> {}
|
|
struct MyDst<T: ?Sized>(T);
|
|
|
|
fn meta_is<T: Pointee<Metadata = U> + ?Sized, U>() {}
|
|
|
|
fn works<T>() {
|
|
meta_is::<T, ()>();
|
|
meta_is::<[T], usize>();
|
|
meta_is::<str, usize>();
|
|
meta_is::<dyn Trait<T>, DynMetadata<dyn Trait<T>>>();
|
|
meta_is::<MyDst<T>, ()>();
|
|
meta_is::<((((([u8],),),),),), usize>();
|
|
}
|
|
|
|
fn main() {}
|