[rustc.git] / src / test / ui / regions / regions-copy-closure.rs

// run-pass
#![allow(non_camel_case_types)]

struct closure_box<'a> {
    cl: Box<dyn FnMut() + 'a>,
}

fn box_it<'a>(x: Box<dyn FnMut() + 'a>) -> closure_box<'a> {
    closure_box {cl: x}
}

pub fn main() {
    let mut i = 3;
    assert_eq!(i, 3);
    {
        let cl = || i += 1;
        let mut cl_box = box_it(Box::new(cl));
        (cl_box.cl)();
    }
    assert_eq!(i, 4);
}
Commit	Line	Data
b7449926 XL	1	// run-pass
	2	#![allow(non_camel_case_types)]
	3
1a4d82fc	4	struct closure_box<'a> {
dc9dc135	5	cl: Box<dyn FnMut() + 'a>,
223e47cc LB	6	}
223e47cc LB	7
dc9dc135	8	fn box_it<'a>(x: Box<dyn FnMut() + 'a>) -> closure_box<'a> {
223e47cc LB	9	closure_box {cl: x}
	10	}
	11
	12	pub fn main() {
c34b1796	13	let mut i = 3;
970d7e83	14	assert_eq!(i, 3);
1a4d82fc	15	{
85aaf69f	16	let cl = \|\| i += 1;
c34b1796	17	let mut cl_box = box_it(Box::new(cl));
92a42be0	18	(cl_box.cl)();
1a4d82fc	19	}
970d7e83	20	assert_eq!(i, 4);
223e47cc	21	}