src/test/ui/borrowck/regions-escape-bound-fn-2.rs


1
2
3
4
5
6
7
8
9
10
11
12
13

fn with_int<F>(f: F)
where
    F: FnOnce(&isize),
{
    let x = 3;
    f(&x);
}

fn main() {
    let mut x = None;
    with_int(|y| x = Some(y));
    //~^ ERROR borrowed data escapes outside of closure
}