Arango.fastJSON.Reflection.CreateMyProp C# (CSharp) Метод

        public myPropInfo CreateMyProp(Type t, string name, bool customType)
        {
            myPropInfo d = new myPropInfo();
            myPropInfoType d_type = myPropInfoType.Unknown;

            if (t == typeof(int) || t == typeof(int?)) d_type = myPropInfoType.Int;
            else if (t == typeof(long) || t == typeof(long?)) d_type = myPropInfoType.Long;
            else if (t == typeof(string)) d_type = myPropInfoType.String;
            else if (t == typeof(bool) || t == typeof(bool?)) d_type = myPropInfoType.Bool;
            else if (t == typeof(DateTime) || t == typeof(DateTime?)) d_type = myPropInfoType.DateTime;
            else if (t.IsEnum) d_type = myPropInfoType.Enum;
            else if (t == typeof(Guid) || t == typeof(Guid?)) d_type = myPropInfoType.Guid;
            else if (t == typeof(StringDictionary)) d_type = myPropInfoType.StringDictionary;
            else if (t == typeof(NameValueCollection)) d_type = myPropInfoType.NameValue;
            else if (t.IsArray)
            {
                d.bt = t.GetElementType();
                if (t == typeof(byte[]))
                    d_type = myPropInfoType.ByteArray;
                else
                    d_type = myPropInfoType.Array;
            }
            else if (t.Name.Contains("Dictionary"))
            {
                d.GenericTypes = Reflection.Instance.GetGenericArguments(t);// t.GetGenericArguments();
                if (d.GenericTypes.Length > 0 && d.GenericTypes[0] == typeof(string))
                    d_type = myPropInfoType.StringKeyDictionary;
                else
                    d_type = myPropInfoType.Dictionary;
            }
            #if !SILVERLIGHT
            else if (t == typeof(Hashtable)) d_type = myPropInfoType.Hashtable;
            else if (t.Name.Contains("SortedList")) d_type = myPropInfoType.SortedList;
            else if (t == typeof(DataSet)) d_type = myPropInfoType.DataSet;
            else if (t == typeof(DataTable)) d_type = myPropInfoType.DataTable;
            #endif
            else if (customType)
                d_type = myPropInfoType.Custom;

            if (t.IsValueType && !t.IsPrimitive && !t.IsEnum && t != typeof(decimal))
                d.IsStruct = true;

            d.IsClass = t.IsClass;
            d.IsValueType = t.IsValueType;
            if (t.IsGenericType)
            {
                d.IsGenericType = true;
                d.bt = t.GetGenericArguments()[0];
            }

            d.pt = t;
            d.Name = name;
            d.changeType = GetChangeType(t);
            d.Type = d_type;

            return d;
        }