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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, collections)]
extern crate collections;
use std::collections::HashMap;
trait Graph<Node, Edge> {
fn f(&self, Edge);
fn g(&self, Node);
}
impl<E> Graph<isize, E> for HashMap<isize, isize> {
fn f(&self, _e: E) {
panic!();
}
fn g(&self, _e: isize) {
panic!();
}
}
pub fn main() {
let g : Box<HashMap<isize,isize>> = box HashMap::new();
let _g2 : Box<Graph<isize,isize>> = g as Box<Graph<isize,isize>>;
}
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