src/test/ui/moves/moves-based-on-type-block-bad.rs

   1 // Copyright 2014 The Rust Project Developers. See the COPYRIGHT
   2 // file at the top-level directory of this distribution and at
   3 // http://rust-lang.org/COPYRIGHT.
   4 //
   5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
   6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
   7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
   8 // option. This file may not be copied, modified, or distributed
   9 // except according to those terms.
  10
  11 // ignore-tidy-linelength
  12
  13 #![feature(box_patterns)]
  14 #![feature(box_syntax)]
  15
  16 struct S {
  17     x: Box<E>
  18 }
  19
  20 enum E {
  21     Foo(Box<S>),
  22     Bar(Box<isize>),
  23     Baz
  24 }
  25
  26 fn f<G>(s: &S, g: G) where G: FnOnce(&S) {
  27     g(s)
  28 }
  29
  30 fn main() {
  31     let s = S { x: box E::Bar(box 42) };
  32     loop {
  33         f(&s, |hellothere| {
  34             match hellothere.x { //~ ERROR cannot move out
  35                                  //~| cannot move out of borrowed content
  36                 box E::Foo(_) => {}
  37                 box E::Bar(x) => println!("{}", x.to_string()),
  38                 box E::Baz => {}
  39             }
  40         })
  41     }
  42 }