[rustc.git] / src / test / ui / dyn-star / upcast.rs

// known-bug: #104800

#![feature(dyn_star, trait_upcasting)]

trait Foo: Bar {
    fn hello(&self);
}

trait Bar {
    fn world(&self);
}

struct W(usize);

impl Foo for W {
    fn hello(&self) {
        println!("hello!");
    }
}

impl Bar for W {
    fn world(&self) {
        println!("world!");
    }
}

fn main() {
    let w: dyn* Foo = W(0);
    w.hello();
    let w: dyn* Bar = w;
    w.world();
}
Commit	Line	Data
487cf647	1	// known-bug: #104800
2b03887a FG	2
2b03887a FG	3	#![feature(dyn_star, trait_upcasting)]
2b03887a FG	4
	5	trait Foo: Bar {
	6	fn hello(&self);
	7	}
	8
	9	trait Bar {
	10	fn world(&self);
	11	}
	12
	13	struct W(usize);
	14
	15	impl Foo for W {
	16	fn hello(&self) {
	17	println!("hello!");
	18	}
	19	}
	20
	21	impl Bar for W {
	22	fn world(&self) {
	23	println!("world!");
	24	}
	25	}
	26
	27	fn main() {
	28	let w: dyn* Foo = W(0);
	29	w.hello();
	30	let w: dyn* Bar = w;
	31	w.world();
	32	}