| // 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. |
| |
| // ignore-tidy-linelength |
| |
| #![feature(box_patterns)] |
| #![feature(box_syntax)] |
| |
| struct S { |
| x: Box<E> |
| } |
| |
| enum E { |
| Foo(Box<S>), |
| Bar(Box<isize>), |
| Baz |
| } |
| |
| fn f<G>(s: &S, g: G) where G: FnOnce(&S) { |
| g(s) |
| } |
| |
| fn main() { |
| let s = S { x: box E::Bar(box 42) }; |
| loop { |
| f(&s, |hellothere| { |
| match hellothere.x { //~ ERROR cannot move out |
| box E::Foo(_) => {} |
| box E::Bar(x) => println!("{}", x.to_string()), //~ NOTE attempting to move value to here |
| box E::Baz => {} |
| } |
| }) |
| } |
| } |