| //@ run-pass |
| // FIXME(static_mut_refs): this could use an atomic |
| #![allow(static_mut_refs)] |
| #![allow(dead_code)] |
| |
| static mut DROP: isize = 0; |
| static mut DROP_S: isize = 0; |
| static mut DROP_T: isize = 0; |
| |
| struct S; |
| impl Drop for S { |
| fn drop(&mut self) { |
| unsafe { |
| DROP_S += 1; |
| DROP += 1; |
| } |
| } |
| } |
| fn f(ref _s: S) {} |
| |
| struct T { i: isize } |
| impl Drop for T { |
| fn drop(&mut self) { |
| unsafe { |
| DROP_T += 1; |
| DROP += 1; |
| } |
| } |
| } |
| fn g(ref _t: T) {} |
| |
| fn do_test() { |
| let s = S; |
| f(s); |
| unsafe { |
| assert_eq!(1, DROP); |
| assert_eq!(1, DROP_S); |
| } |
| let t = T { i: 1 }; |
| g(t); |
| unsafe { assert_eq!(1, DROP_T); } |
| } |
| |
| fn main() { |
| do_test(); |
| unsafe { |
| assert_eq!(2, DROP); |
| assert_eq!(1, DROP_S); |
| assert_eq!(1, DROP_T); |
| } |
| } |
