rust/tests/ui/borrowck/regions-escape-unboxed-closure.rs
2023-01-11 09:32:08 +00:00

8 lines
187 B
Rust

fn with_int(f: &mut dyn FnMut(&isize)) {}
fn main() {
let mut x: Option<&isize> = None;
with_int(&mut |y| x = Some(y));
//~^ ERROR borrowed data escapes outside of closure
}