38 lines
1017 B
Rust
38 lines
1017 B
Rust
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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struct shrinky_pointer {
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i: @@mut int,
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}
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#[unsafe_destructor]
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impl Drop for shrinky_pointer {
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fn drop(&mut self) {
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error2!("Hello!"); **(self.i) -= 1;
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}
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}
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impl shrinky_pointer {
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pub fn look_at(&self) -> int { return **(self.i); }
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}
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fn shrinky_pointer(i: @@mut int) -> shrinky_pointer {
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shrinky_pointer {
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i: i
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}
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}
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pub fn main() {
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let my_total = @@mut 10;
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{ let pt = shrinky_pointer(my_total); assert!((pt.look_at() == 10)); }
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error2!("my_total = {}", **my_total);
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assert_eq!(**my_total, 9);
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}
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