// Copyright 2014-2018 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution.
//
// 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.

#![warn(clippy::single_match_else)]

enum ExprNode {
    ExprAddrOf,
    Butterflies,
    Unicorns,
}

static NODE: ExprNode = ExprNode::Unicorns;

fn unwrap_addr() -> Option<&'static ExprNode> {
    match ExprNode::Butterflies {
        ExprNode::ExprAddrOf => Some(&NODE),
        _ => {
            let x = 5;
            None
        },
    }
}

fn main() {}