36 lines
751 B
Rust
36 lines
751 B
Rust
// 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.
|
|
|
|
struct r {
|
|
b: @mut int,
|
|
}
|
|
|
|
#[unsafe_destructor]
|
|
impl Drop for r {
|
|
fn drop(&mut self) {
|
|
*(self.b) += 1;
|
|
}
|
|
}
|
|
|
|
fn r(b: @mut int) -> r {
|
|
r {
|
|
b: b
|
|
}
|
|
}
|
|
|
|
pub fn main() {
|
|
let b = @mut 0;
|
|
{
|
|
let _p = Some(r(b));
|
|
}
|
|
|
|
assert_eq!(*b, 1);
|
|
}
|