}

  public void testCompound_instance() {
    Comparator<String> comparator = byCharAt(1).compound(byCharAt(0));
    Helpers.testComparator(
        comparator,
        ImmutableList.of("red", "yellow", "violet", "blue", "indigo", "green", "orange"));
  }

  public void testCompound_instance_generics() {
    Ordering<Object> objects = Ordering.explicit((Object) 1);
    Ordering<Number> numbers = Ordering.explicit((Number) 1);

  }

  public void testCompound_instance() {
    Comparator<String> comparator = byCharAt(1).compound(byCharAt(0));
    Helpers.testComparator(
        comparator,
        ImmutableList.of("red", "yellow", "violet", "blue", "indigo", "green", "orange"));
  }

  public void testCompound_instance_generics() {
    Ordering<Object> objects = Ordering.explicit((Object) 1);
    Ordering<Number> numbers = Ordering.explicit((Number) 1);

	ctx, cancel := context.WithTimeout(ctx, timeout)
	defer cancel()

	c := make(chan ioret[V], 1)
	go func() {
		v, err := work(ctx)
		c <- ioret[V]{val: v, err: err}
	}()

	select {
	case v := <-c:
		return v.val, v.err
	case <-ctx.Done():
		var zero V
		return zero, ctx.Err()
	}
}