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// 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.
#![allow(unknown_features)]
#![feature(box_syntax)]
struct Dog {
name : String
}
trait Barks {
fn bark(&self) -> String;
}
impl Barks for Dog {
fn bark(&self) -> String {
return format!("woof! (I'm {})", self.name);
}
}
pub fn main() {
let snoopy = box Dog{name: "snoopy".to_string()};
let bubbles = box Dog{name: "bubbles".to_string()};
let barker = [snoopy as Box<Barks>, bubbles as Box<Barks>];
for pup in &barker {
println!("{}", pup.bark());
}
}
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