rust/tests/ui/coercion/issue-36007.rs
2024-02-16 20:02:50 +00:00

21 lines
343 B
Rust

//@ check-pass
#![feature(coerce_unsized, unsize)]
use std::marker::Unsize;
use std::ops::CoerceUnsized;
struct Foo<T: ?Sized>(Box<T>);
impl<T> CoerceUnsized<Foo<dyn Baz>> for Foo<T> where T: Unsize<dyn Baz> {}
struct Bar;
trait Baz {}
impl Baz for Bar {}
fn main() {
let foo = Foo(Box::new(Bar));
let foobar: Foo<Bar> = foo;
}