namespace Opus6
{
    using System;

    [Copyright("Copyright (c) 2001 by Bruno R. Preiss, P.Eng."), Version("$Id: PrePostVisitor.cs,v 1.4 2001/10/28 19:50:09 brpreiss Exp $")]
    public interface PrePostVisitor
    {
        void InVisit(object obj);
        void PostVisit(object obj);
        void PreVisit(object obj);

        bool IsDone { get; }

    }
}