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1 | // Copyright 2012 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 | // Note: the borrowck analysis is currently flow-insensitive. | |
12 | // Therefore, some of these errors are marked as spurious and could be | |
13 | // corrected by a simple change to the analysis. The others are | |
14 | // either genuine or would require more advanced changes. The latter | |
15 | // cases are noted. | |
16 | ||
1a4d82fc | 17 | #![feature(box_syntax)] |
223e47cc | 18 | |
1a4d82fc JJ |
19 | fn borrow(_v: &isize) {} |
20 | fn borrow_mut(_v: &mut isize) {} | |
21 | fn cond() -> bool { panic!() } | |
22 | fn for_func<F>(_f: F) where F: FnOnce() -> bool { panic!() } | |
23 | fn produce<T>() -> T { panic!(); } | |
223e47cc | 24 | |
1a4d82fc JJ |
25 | fn inc(v: &mut Box<isize>) { |
26 | *v = box() (**v + 1); | |
c1a9b12d | 27 | //~^ WARN deprecated syntax |
223e47cc LB |
28 | } |
29 | ||
1a4d82fc | 30 | fn pre_freeze() { |
970d7e83 | 31 | // In this instance, the freeze starts before the mut borrow. |
223e47cc | 32 | |
c34b1796 | 33 | let mut v: Box<_> = box 3; |
1a4d82fc JJ |
34 | let _w = &v; |
35 | borrow_mut(&mut *v); //~ ERROR cannot borrow | |
223e47cc LB |
36 | } |
37 | ||
970d7e83 LB |
38 | fn post_freeze() { |
39 | // In this instance, the const alias starts after the borrow. | |
223e47cc | 40 | |
c34b1796 | 41 | let mut v: Box<_> = box 3; |
1a4d82fc | 42 | borrow_mut(&mut *v); |
970d7e83 | 43 | let _w = &v; |
223e47cc LB |
44 | } |
45 | ||
46 | fn main() {} |