rust/tests/ui/nll/closure-use-spans.rs

// check that liveness due to a closure capture gives a special note

fn use_as_borrow_capture(mut x: i32) {
    let y = &x;
    x = 0; //~ ERROR
    || *y;
}

fn use_as_borrow_mut_capture(mut x: i32) {
    let y = &mut x;
    x = 0; //~ ERROR
    || *y = 1;
}

fn use_as_move_capture(mut x: i32) {
    let y = &x;
    x = 0; //~ ERROR
    move || *y;
}

fn main() {}