blob: 0adf486b8b3ab30b011b45c82e3e3e089f19cf91 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
// Test that we detect nested calls that could free pointers evaluated
// for earlier arguments.
fn rewrite(v: &mut ~uint) -> uint {
*v = ~22;
**v
}
fn add(v: &uint, w: ~uint) -> uint {
*v + *w
}
fn implicit() {
let mut a = ~1;
// Note the danger here:
//
// the pointer for the first argument has already been
// evaluated, but it gets moved when evaluating the second
// argument!
add(
a,
a); //~ ERROR cannot move
}
fn explicit() {
let mut a = ~1;
add(
&*a,
a); //~ ERROR cannot move
}
fn main() {}
|
