rust/src/test/compile-fail/bind-by-move-no-guards.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.

use std::sync::mpsc::channel;

fn main() {
    let (tx, rx) = channel();
    let x = Some(rx);
    tx.send(false);
    match x {
        Some(z) if z.recv().unwrap() => { panic!() },
            //~^ ERROR cannot bind by-move into a pattern guard
        Some(z) => { assert!(!z.recv().unwrap()); },
        None => panic!()
    }
}