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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.
#![crate_name="a"]
#![crate_type = "lib"]
#![allow(unknown_features)]
#![feature(box_syntax)]
pub trait i<T>
{
fn dummy(&self, t: T) -> T { panic!() }
}
pub fn f<T>() -> Box<i<T>+'static> {
impl<T> i<T> for () { }
box() () as Box<i<T>+'static>
}
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