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1 | // Copyright 2013-2014 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 | // ignore-windows | |
12 | // exec-env:RUST_LOG=debug | |
13 | ||
14 | use std::cell::Cell; | |
15 | use std::fmt; | |
85aaf69f | 16 | use std::thread; |
1a4d82fc | 17 | |
c34b1796 | 18 | struct Foo(Cell<isize>); |
1a4d82fc | 19 | |
85aaf69f | 20 | impl fmt::Debug for Foo { |
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21 | fn fmt(&self, _fmt: &mut fmt::Formatter) -> fmt::Result { |
22 | let Foo(ref f) = *self; | |
62682a34 | 23 | assert_eq!(f.get(), 0); |
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24 | f.set(1); |
25 | Ok(()) | |
26 | } | |
27 | } | |
28 | ||
29 | pub fn main() { | |
85aaf69f | 30 | thread::spawn(move|| { |
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31 | let mut f = Foo(Cell::new(0)); |
32 | println!("{:?}", f); | |
33 | let Foo(ref mut f) = f; | |
62682a34 | 34 | assert_eq!(f.get(), 1); |
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35 | }).join().ok().unwrap(); |
36 | } |