[rustc.git] / src / test / run-pass / issue-7673-cast-generically-implemented-trait.rs

// 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.

// pretty-expanded FIXME #23616

/*

#7673 Polymorphically creating traits barely works

*/

#![allow(unknown_features)]
#![feature(box_syntax)]

pub fn main() {}

trait A {
    fn dummy(&self) { }
}

impl<T: 'static> A for T {}

fn owned2<T: 'static>(a: Box<T>) { a as Box<A>; }
fn owned3<T: 'static>(a: Box<T>) { box a as Box<A>; }
Commit	Line	Data
223e47cc LB	1	// Copyright 2013 The Rust Project Developers. See the COPYRIGHT
	2	// file at the top-level directory of this distribution and at
	3	// http://rust-lang.org/COPYRIGHT.
	4	//
	5	// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
	6	// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
	7	// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
	8	// option. This file may not be copied, modified, or distributed
	9	// except according to those terms.
	10
c34b1796 AL	11	// pretty-expanded FIXME #23616
c34b1796 AL	12
970d7e83	13	/*
1a4d82fc JJ	14
	15	#7673 Polymorphically creating traits barely works
	16
970d7e83 LB	17	*/
970d7e83 LB	18
1a4d82fc JJ	19	#![allow(unknown_features)]
	20	#![feature(box_syntax)]
	21
	22	pub fn main() {}
	23
85aaf69f SL	24	trait A {
	25	fn dummy(&self) { }
	26	}
	27
1a4d82fc JJ	28	impl<T: 'static> A for T {}
	29
	30	fn owned2<T: 'static>(a: Box<T>) { a as Box<A>; }
	31	fn owned3<T: 'static>(a: Box<T>) { box a as Box<A>; }