src/test/compile-fail/borrowck-loan-in-overloaded-op.rs

   1 // Copyright 2012 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 #![feature(box_patterns)]
  12 #![feature(box_syntax)]
  13
  14 use std::ops::Add;
  15
  16 #[derive(Clone)]
  17 struct foo(Box<usize>);
  18
  19 impl Add for foo {
  20     type Output = foo;
  21
  22     fn add(self, f: foo) -> foo {
  23         let foo(box i) = self;
  24         let foo(box j) = f;
  25         foo(box() (i + j))
  26         //~^ WARN deprecated syntax
  27     }
  28 }
  29
  30 fn main() {
  31     let x = foo(box 3);
  32     let _y = {x} + x.clone(); // the `{x}` forces a move to occur
  33     //~^ ERROR use of moved value: `x`
  34 }