src/test/run-pass/issue-8860.rs

   1 // Copyright 2012-2014 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 static mut DROP: int = 0;
  12 static mut DROP_S: int = 0;
  13 static mut DROP_T: int = 0;
  14
  15 struct S;
  16 impl Drop for S {
  17     fn drop(&mut self) {
  18         unsafe {
  19             DROP_S += 1;
  20             DROP += 1;
  21         }
  22     }
  23 }
  24 fn f(ref _s: S) {}
  25
  26 struct T { i: int }
  27 impl Drop for T {
  28     fn drop(&mut self) {
  29         unsafe {
  30             DROP_T += 1;
  31             DROP += 1;
  32         }
  33     }
  34 }
  35 fn g(ref _t: T) {}
  36
  37 fn do_test() {
  38     let s = S;
  39     f(s);
  40     unsafe {
  41         assert_eq!(1, DROP);
  42         assert_eq!(1, DROP_S);
  43     }
  44     let t = T { i: 1 };
  45     g(t);
  46     unsafe { assert_eq!(1, DROP_T); }
  47 }
  48
  49 fn main() {
  50     do_test();
  51     unsafe {
  52         assert_eq!(2, DROP);
  53         assert_eq!(1, DROP_S);
  54         assert_eq!(1, DROP_T);
  55     }
  56 }