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fn main() {
struct U;
fn accept_fn_once(_: &impl FnOnce()) {}
fn accept_fn_mut(_: &impl FnMut()) {}
fn accept_fn(_: &impl Fn()) {}
let mut tup = (U, U, U);
let (ref _x0, _x1, ref mut _x2) = tup;
let c1 = || {
//~^ ERROR expected a closure that implements the `FnMut`
//~| ERROR expected a closure that implements the `Fn`
drop::<&U>(_x0);
drop::<U>(_x1);
drop::<&mut U>(_x2);
};
accept_fn_once(&c1);
accept_fn_mut(&c1);
accept_fn(&c1);
let c2 = || {
//~^ ERROR expected a closure that implements the `Fn`
drop::<&U>(_x0);
drop::<&mut U>(_x2);
};
accept_fn_mut(&c2);
accept_fn(&c2);
let c3 = || {
drop::<&U>(_x0);
};
accept_fn(&c3);
}
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