// Copyright 2017 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 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. #![feature(generators)] enum Enum { A(String), B } fn main() { || { loop { if let true = true { match Enum::A(String::new()) { Enum::A(_var) => {} Enum::B => {} } } yield; } }; }