| // Copyright 2014 The Rust Project Developers. See the COPYRIGHT |
| // file at the top-level directory of this distribution and at |
| // http://rust-lang.org/COPYRIGHT. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| #![feature(box_syntax, unboxed_closures)] |
| |
| fn to_fn_once<A,F:FnOnce<A>>(f: F) -> F { f } |
| fn do_it(x: &isize) { } |
| |
| fn main() { |
| let x: Box<_> = box 22; |
| let f = to_fn_once(move|| do_it(&*x)); |
| to_fn_once(move|| { |
| f(); |
| f(); |
| //~^ ERROR: use of moved value: `f` |
| })() |
| } |
