[rustc.git] / src / test / run-pass / unboxed-closures-call-sugar-object.rs

// 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(unknown_features)]

use std::ops::FnMut;

fn make_adder(x: isize) -> Box<FnMut(isize)->isize + 'static> {
    // FIXME (#22405): Replace `Box::new` with `box` here when/if possible.
    Box::new(move |y| { x + y })
}

pub fn main() {
    let mut adder = make_adder(3);
    let z = (*adder)(2);
    println!("{}", z);
    assert_eq!(z, 5);
}
Commit	Line	Data
223e47cc LB	1	// Copyright 2012 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
1a4d82fc	11	#![allow(unknown_features)]
223e47cc	12
1a4d82fc	13	use std::ops::FnMut;
223e47cc	14
c34b1796 AL	15	fn make_adder(x: isize) -> Box<FnMut(isize)->isize + 'static> {
	16	// FIXME (#22405): Replace `Box::new` with `box` here when/if possible.
	17	Box::new(move \|y\| { x + y })
223e47cc LB	18	}
	19
	20	pub fn main() {
1a4d82fc JJ	21	let mut adder = make_adder(3);
	22	let z = (*adder)(2);
	23	println!("{}", z);
	24	assert_eq!(z, 5);
223e47cc	25	}