src/test/run-pass/issue-17737.rs


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// Copyright 2014 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.

#![feature(unboxed_closures)]

// Test generating type visitor glue for unboxed closures

extern crate debug;

fn main() {
    let expected = "fn(); fn(uint, uint) -> uint; fn() -> !";
    let result = format!("{:?}; {:?}; {:?}",
                         |:| {},
                         |&: x: uint, y: uint| { x + y },
                         |&mut:| -> ! { fail!() });
    assert_eq!(expected, result.as_slice());
}