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.
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.
11 // Tests that two closures cannot simultaneously have mutable
12 // access to the variable, whether that mutable access be used
13 // for direct assignment or for taking mutable ref. Issue #6801.
19 let c2 = || x = 5; //~ ERROR cannot borrow `x` as mutable more than once
28 let c1 = || set(&mut x);
29 let c2 = || set(&mut x); //~ ERROR cannot borrow `x` as mutable more than once
35 let c2 = || set(&mut x); //~ ERROR cannot borrow `x` as mutable more than once
41 let c2 = || { let _y = || set(&mut x); }; // (nested closure)
42 //~^ ERROR cannot borrow `x` as mutable more than once
50 let mut x = box Foo { f: box 3 };
51 let c1 = || set(&mut *x.f);
52 let c2 = || set(&mut *x.f);
53 //~^ ERROR cannot borrow `x` as mutable more than once