src/test/compile-fail/borrowck-move-from-subpath-of-borrowed-path.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 // verify that an error is raised when trying to move out of a
  12 // borrowed path.
  13
  14 #![feature(box_syntax)]
  15
  16 fn main() {
  17     let a: Box<Box<_>> = box box 2;
  18     let b = &a;
  19
  20     let z = *a; //~ ERROR: cannot move out of `*a` because it is borrowed
  21 }