+// Copyright 2013 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.
+
+#[feature(managed_boxes)];
+
+trait Trait<T> {
+ fn f(&self, x: T);
+}
+
+struct Struct {
+ x: int,
+ y: int,
+}
+
+impl Trait<&'static str> for Struct {
+ fn f(&self, x: &'static str) {
+ println(~"Hi, " + x + ~"!");
+ }
+}
+
+fn f(x: @Trait<&'static str>) {
+ x.f("Sue");
+}
+
+pub fn main() {
+ let a = Struct { x: 1, y: 2 };
+ let b: @Trait<&'static str> = @a;
+ b.f("Fred");
+ let c: ~Trait<&'static str> = ~a;
+ c.f("Mary");
+ let d: &Trait<&'static str> = &a;
+ d.f("Joe");
+ f(@a);
+}
+