1 // Copyright 2016 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.
11 // error-pattern:drop 1
12 // ignore-cloudabi no std::process
14 /// Structure which will not allow to be dropped twice.
15 struct Droppable<'a>(&'a mut bool, u32);
16 impl<'a> Drop for Droppable<'a> {
19 eprintln!("{} dropped twice", self.1);
20 ::std::process::exit(1);
22 eprintln!("drop {}", self.1);
27 fn mir<'a>(d: Droppable<'a>) {
36 mir(Droppable(&mut xv, 1));