// Copyright 2018 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.

// Check that generators respect the muatability of their upvars.

#![feature(generators, nll)]

fn mutate_upvar() {
    let x = 0;
    move || {
        x = 1;
        //~^ ERROR
        yield;
    };
}

fn main() {}