Add test for #8860

Author: edwardw

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

@@ -0,0 +1,60 @@
+// Copyright 2012-2014 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.
+
+extern mod green;
+
+static mut DROP: int = 0i;
+static mut DROP_S: int = 0i;
+static mut DROP_T: int = 0i;
+
+#[start]
+fn start(argc: int, argv: **u8) -> int {
+    let ret = green::start(argc, argv, main);
+    unsafe {
+        assert_eq!(2, DROP);
+        assert_eq!(1, DROP_S);
+        assert_eq!(1, DROP_T);
+    }
+    ret
+}
+
+struct S;
+impl Drop for S {
+    fn drop(&mut self) {
+        unsafe {
+            DROP_S += 1;
+            DROP += 1;
+        }
+    }
+}
+fn f(ref _s: S) {}
+
+struct T { i: int }
+impl Drop for T {
+    fn drop(&mut self) {
+        unsafe {
+            DROP_T += 1;
+            DROP += 1;
+        }
+    }
+}
+fn g(ref _t: T) {}
+
+fn main() {
+    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); }
+}