1 // Copyright 2017 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 // ensure borrowck messages are correct outside special case
12 #![feature(rustc_attrs)]
13 fn main() { #![rustc_error] // rust-lang/rust#49855
16 let first = &mut void;
17 let second = &mut void; //~ ERROR cannot borrow
22 let mut inner_void = ();
24 let inner_first = &mut inner_void;
25 let inner_second = &mut inner_void; //~ ERROR cannot borrow
26 inner_second.use_mut();
27 inner_first.use_mut();
31 trait Fake { fn use_mut(&mut self) { } fn use_ref(&self) { } }
32 impl<T> Fake for T { }