// 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(macro_rules)]

macro_rules! expr (($e: expr) => { $e })

macro_rules! spawn {
    ($($code: tt)*) => {
        expr!(spawn(proc() {$($code)*}))
    }
}

pub fn main() {
    spawn! {
        println!("stmt");
    };
    let _ = spawn! {
        println!("expr");
    };
}