public override void DeclareStaticData(CsCodeWriter code)
        {
            code.Write("private static readonly {0}[] __in_{1} = new {0}[] {{", _field.GetStorageType(code), _field.CamelName);
            int ix = 0;
            string[] list = (string[]) _rule.Values.Clone();
            Array.Sort(list);

            foreach (string possible in _rule.Values)
            {
                if (ix++ > 0) code.Write(", ");
                code.Write(code.MakeConstant(_field.FieldType, possible));
            }
            code.WriteLine("};");
        }