﻿using System.Collections.Generic;

namespace Serenity.Reflection
{
    class VisitedGraph : Dictionary<object, object>
    {
        public new bool ContainsKey(object key)
        {
            if (key == null)
                return true;
            return base.ContainsKey(key);
        }

        public new object this[object key]
        {
            get { if (key == null) return null; return base[key]; }
        }
    }
}
