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Imported Upstream version 1.9.0+dfsg1
[rustc.git] / src / test / compile-fail / borrowck / borrowck-vec-pattern-nesting.rs
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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)]
85aaf69f 12#![feature(box_patterns)]
1a4d82fc 13#![feature(box_syntax)]
c34b1796 14#![feature(slice_patterns)]
1a4d82fc 15
223e47cc 16fn a() {
85aaf69f 17 let mut vec = [box 1, box 2, box 3];
223e47cc 18 match vec {
1a4d82fc 19 [box ref _a, _, _] => {
54a0048b 20 //~^ borrow of `vec[..]` occurs here
1a4d82fc 21 vec[0] = box 4; //~ ERROR cannot assign
223e47cc 22 }
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23 }
24}
25
26fn b() {
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27 let mut vec = vec!(box 1, box 2, box 3);
28 let vec: &mut [Box<isize>] = &mut vec;
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29 match vec {
30 [_b..] => {
54a0048b 31 //~^ borrow of `vec[..]` occurs here
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32 vec[0] = box 4; //~ ERROR cannot assign
33 }
34 }
35}
36
37fn c() {
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38 let mut vec = vec!(box 1, box 2, box 3);
39 let vec: &mut [Box<isize>] = &mut vec;
223e47cc 40 match vec {
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41 [_a, //~ ERROR cannot move out
42 _b..] => { //~^ NOTE attempting to move value to here
43
44 // Note: `_a` is *moved* here, but `b` is borrowing,
45 // hence illegal.
46 //
47 // See comment in middle/borrowck/gather_loans/mod.rs
48 // in the case covering these sorts of vectors.
223e47cc 49 }
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50 _ => {}
51 }
52 let a = vec[0]; //~ ERROR cannot move out
54a0048b 53 //~^ NOTE attempting to move value to here
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54}
55
56fn d() {
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57 let mut vec = vec!(box 1, box 2, box 3);
58 let vec: &mut [Box<isize>] = &mut vec;
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59 match vec {
60 [_a.., //~ ERROR cannot move out
61 _b] => {} //~ NOTE attempting to move value to here
62 _ => {}
63 }
64 let a = vec[0]; //~ ERROR cannot move out
54a0048b 65 //~^ NOTE attempting to move value to here
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66}
67
68fn e() {
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69 let mut vec = vec!(box 1, box 2, box 3);
70 let vec: &mut [Box<isize>] = &mut vec;
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71 match vec {
72 [_a, _b, _c] => {} //~ ERROR cannot move out
73 //~^ NOTE attempting to move value to here
74 //~^^ NOTE and here
75 //~^^^ NOTE and here
76 _ => {}
223e47cc 77 }
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78 let a = vec[0]; //~ ERROR cannot move out
79 //~^ NOTE attempting to move value to here
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80}
81
82fn main() {}