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.
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.
12 // This test verifies that temporaries created for `while`'s and `if`
13 // conditions are dropped after the condition is evaluated.
16 #![allow(unknown_features)]
17 #![feature(box_syntax)]
21 static mut DROPPED: isize = 0;
23 impl Drop for Temporary {
25 unsafe { DROPPED += 1; }
30 fn do_stuff(&self) -> bool {true}
33 fn borrow() -> Box<Temporary> { box Temporary }
39 // This loop's condition
40 // should call `Temporary`'s
42 while borrow().do_stuff() {
44 unsafe { assert_eq!(DROPPED, i) }
50 // This if condition should
52 if borrow().do_stuff() {
53 unsafe { assert_eq!(DROPPED, i + 1) }