| // Copyright 2014 The Rust Project Developers. See the COPYRIGHT |
| // file at the top-level directory of this distribution and at |
| // http://rust-lang.org/COPYRIGHT. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| #![feature(box_syntax)] |
| |
| |
| |
| struct Foo(Box<isize>, isize); |
| |
| struct Bar(isize, isize); |
| |
| fn main() { |
| let x: (Box<_>, _) = (box 1, 2); |
| let r = &x.0; |
| let y = x; //~ ERROR cannot move out of `x` because it is borrowed |
| |
| r.use_ref(); |
| |
| let mut x = (1, 2); |
| let a = &x.0; |
| let b = &mut x.0; //~ ERROR cannot borrow `x.0` as mutable because it is also borrowed as |
| a.use_ref(); |
| |
| let mut x = (1, 2); |
| let a = &mut x.0; |
| let b = &mut x.0; //~ ERROR cannot borrow `x.0` as mutable more than once at a time |
| a.use_ref(); |
| |
| let x = Foo(box 1, 2); |
| let r = &x.0; |
| let y = x; //~ ERROR cannot move out of `x` because it is borrowed |
| r.use_ref(); |
| |
| let mut x = Bar(1, 2); |
| let a = &x.0; |
| let b = &mut x.0; //~ ERROR cannot borrow `x.0` as mutable because it is also borrowed as |
| a.use_ref(); |
| |
| let mut x = Bar(1, 2); |
| let a = &mut x.0; |
| let b = &mut x.0; //~ ERROR cannot borrow `x.0` as mutable more than once at a time |
| a.use_mut(); |
| } |
| |
| trait Fake { fn use_mut(&mut self) { } fn use_ref(&self) { } } |
| impl<T> Fake for T { } |