rust/tests/ui/borrowck/regions-escape-bound-fn-2.rs

14 lines
204 B
Rust

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
}