src/test/compile-fail/borrowck/borrowck-vec-pattern-loan-from-mut.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(slice_patterns)]
  12
  13 fn a() {
  14     let mut v = vec![1, 2, 3];
  15     let vb: &mut [isize] = &mut v;
  16     match vb {
  17         &mut [_a, ref tail..] => {
  18             v.push(tail[0] + tail[1]); //~ ERROR cannot borrow
  19         }
  20         _ => {}
  21     };
  22 }
  23
  24 fn main() {}