auto merge of #12375 : FlaPer87/rust/issue-7660, r=cmr

src/test/run-pass/issue-7660.rs

@@ -0,0 +1,24 @@
+// Copyright 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.
+
+// Regresion test for issue 7660
+// rvalue lifetime too short when equivalent `match` works
+
+use std::hashmap::HashMap;
+
+struct A(int, int);
+
+pub fn main() {
+    let mut m: HashMap<int, A> = HashMap::new();
+    m.insert(1, A(0, 0));
+
+    let A(ref _a, ref _b) = *m.get(&1);
+    let (a, b) = match *m.get(&1) { A(ref _a, ref _b) => (_a, _b) };
+}