rust/tests/ui/generics/generic-object.rs
2024-02-16 20:02:50 +00:00

22 lines
278 B
Rust

//@ run-pass
trait Foo<T> {
fn get(&self) -> T;
}
struct S {
x: isize
}
impl Foo<isize> for S {
fn get(&self) -> isize {
self.x
}
}
pub fn main() {
let x = Box::new(S { x: 1 });
let y = x as Box<dyn Foo<isize>>;
assert_eq!(y.get(), 1);
}