[rustc.git] / src / test / ui / self / uniq-self-in-mut-slot.rs

// run-pass

struct X {
    a: isize
}

trait Changer {
    fn change(self: Box<Self>) -> Box<Self>;
}

impl Changer for X {
    fn change(mut self: Box<X>) -> Box<X> {
        self.a = 55;
        self
    }
}

pub fn main() {
    let x: Box<_> = Box::new(X { a: 32 });
    let new_x = x.change();
    assert_eq!(new_x.a, 55);
}
Commit	Line	Data
b7449926	1	// run-pass
1a4d82fc JJ	2
1a4d82fc JJ	3	struct X {
c34b1796	4	a: isize
1a4d82fc JJ	5	}
	6
	7	trait Changer {
c30ab7b3	8	fn change(self: Box<Self>) -> Box<Self>;
1a4d82fc JJ	9	}
	10
	11	impl Changer for X {
	12	fn change(mut self: Box<X>) -> Box<X> {
	13	self.a = 55;
	14	self
	15	}
	16	}
223e47cc LB	17
223e47cc LB	18	pub fn main() {
c295e0f8	19	let x: Box<_> = Box::new(X { a: 32 });
1a4d82fc JJ	20	let new_x = x.change();
1a4d82fc JJ	21	assert_eq!(new_x.a, 55);
223e47cc	22	}