| #![feature(unboxed_closures, tuple_trait)] | |
| fn to_fn_once<A:std::marker::Tuple,F:FnOnce<A>>(f: F) -> F { f } | |
| fn do_it(x: &isize) { } | |
| fn main() { | |
| let x: Box<_> = Box::new(22); | |
| let f = to_fn_once(move|| do_it(&*x)); | |
| to_fn_once(move|| { | |
| f(); | |
| f(); | |
| //~^ ERROR: use of moved value: `f` | |
| })() | |
| } |