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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 | // Test that we do not leak when the arg pattern must drop part of the | |
12 | // argument (in this case, the `y` field). | |
13 | ||
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14 | // pretty-expanded FIXME #23616 |
15 | ||
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16 | #![allow(unknown_features)] |
17 | #![feature(box_syntax)] | |
18 | ||
19 | struct Foo { | |
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20 | x: Box<usize>, |
21 | y: Box<usize>, | |
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22 | } |
23 | ||
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24 | fn foo(Foo {x, ..}: Foo) -> *const usize { |
25 | let addr: *const usize = &*x; | |
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26 | addr |
27 | } | |
28 | ||
29 | pub fn main() { | |
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30 | let obj: Box<_> = box 1; |
31 | let objptr: *const usize = &*obj; | |
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32 | let f = Foo {x: obj, y: box 2}; |
33 | let xptr = foo(f); | |
34 | assert_eq!(objptr, xptr); | |
35 | } |