src/test/run-pass/issue-2735-2.rs

   1 // Copyright 2012 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.
   4 //
   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.
  10
  11 use std::cell::Cell;
  12
  13 // This test should behave exactly like issue-2735-3
  14 struct defer<'a> {
  15     b: &'a Cell<bool>,
  16 }
  17
  18 impl<'a> Drop for defer<'a> {
  19     fn drop(&mut self) {
  20         self.b.set(true);
  21     }
  22 }
  23
  24 fn defer(b: &Cell<bool>) -> defer {
  25     defer {
  26         b: b
  27     }
  28 }
  29
  30 pub fn main() {
  31     let dtor_ran = &Cell::new(false);
  32     let _  = defer(dtor_ran);
  33     assert!(dtor_ran.get());
  34 }