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// Copyright 2012 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(non_camel_case_types)]
#![allow(dead_code)]
#![feature(box_syntax)]
struct pair<A,B> {
a: A, b: B
}
trait Invokable<A> {
fn f(&self) -> (A, u16);
}
struct Invoker<A> {
a: A,
b: u16,
}
impl<A:Clone> Invokable<A> for Invoker<A> {
fn f(&self) -> (A, u16) {
(self.a.clone(), self.b)
}
}
fn f<A:Clone + 'static>(a: A, b: u16) -> Box<Invokable<A>+'static> {
box Invoker {
a: a,
b: b,
} as (Box<Invokable<A>+'static>)
}
pub fn main() {
let (a, b) = f(22_u64, 44u16).f();
println!("a={} b={}", a, b);
assert_eq!(a, 22u64);
assert_eq!(b, 44u16);
}
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