src/test/compile-fail/borrowck/borrowck-vec-pattern-element-loan.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(advanced_slice_patterns)]
  12 #![feature(slice_patterns)]
  13
  14 fn a<'a>() -> &'a [isize] {
  15     let vec = vec![1, 2, 3, 4];
  16     let vec: &[isize] = &vec; //~ ERROR does not live long enough
  17     let tail = match vec {
  18         &[_, ref tail..] => tail,
  19         _ => panic!("a")
  20     };
  21     tail
  22 }
  23
  24 fn b<'a>() -> &'a [isize] {
  25     let vec = vec![1, 2, 3, 4];
  26     let vec: &[isize] = &vec; //~ ERROR does not live long enough
  27     let init = match vec {
  28         &[ref init.., _] => init,
  29         _ => panic!("b")
  30     };
  31     init
  32 }
  33
  34 fn c<'a>() -> &'a [isize] {
  35     let vec = vec![1, 2, 3, 4];
  36     let vec: &[isize] = &vec; //~ ERROR does not live long enough
  37     let slice = match vec {
  38         &[_, ref slice.., _] => slice,
  39         _ => panic!("c")
  40     };
  41     slice
  42 }
  43
  44 fn main() {}