| // 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. |
| |
| // Test that the call operator autoderefs when calling to an object type. |
| |
| #![allow(unknown_features)] |
| #![feature(unboxed_closures)] |
| |
| 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); |
| } |
