src/test/compile-fail/issue-17263.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 #![feature(box_syntax)]
  12
  13 struct Foo { a: isize, b: isize }
  14
  15 fn main() {
  16     let mut x: Box<_> = box Foo { a: 1, b: 2 };
  17     let (a, b) = (&mut x.a, &mut x.b);
  18     //~^ ERROR cannot borrow `x` (here through borrowing `x.b`) as mutable more than once at a time
  19     //~^^ NOTE previous borrow of `x` occurs here (through borrowing `x.a`)
  20
  21     let mut foo: Box<_> = box Foo { a: 1, b: 2 };
  22     let (c, d) = (&mut foo.a, &foo.b);
  23     //~^ ERROR cannot borrow `foo` (here through borrowing `foo.b`) as immutable
  24     //~^^ NOTE previous borrow of `foo` occurs here (through borrowing `foo.a`)
  25 }
  26 //~^ NOTE previous borrow ends here
  27 //~^^ NOTE previous borrow ends here