| // 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. |
| |
| // Ensures that class dtors run if the object is inside an enum |
| // variant |
| |
| use std::cell::Cell; |
| |
| type closable<'a> = &'a Cell<bool>; |
| |
| struct close_res<'a> { |
| i: closable<'a>, |
| |
| } |
| |
| impl<'a> Drop for close_res<'a> { |
| fn drop(&mut self) { |
| self.i.set(false); |
| } |
| } |
| |
| fn close_res(i: closable) -> close_res { |
| close_res { |
| i: i |
| } |
| } |
| |
| enum option<T> { none, some(T), } |
| |
| fn sink(_res: option<close_res>) { } |
| |
| pub fn main() { |
| let c = &Cell::new(true); |
| sink(option::none); |
| sink(option::some(close_res(c))); |
| assert!(!c.get()); |
| } |