public override string ObjectToJson(object obj)
        {
            if (obj == null)
            {
                return(null);
            }

            IDictionary      dict         = obj as IDictionary;
            EasyJsonWriter   writer       = new EasyJsonWriter();
            JsonItemMetadata itemMetadata = _getItemMetadata(obj.GetType());

            ObjectToJsonFunc keyFunc = _stringKeyToJsonName;

            if (itemMetadata.IndexType != typeof(string))
            {
                keyFunc = base.ObjectToJson;
            }

            writer.WriteObjectStart();
            foreach (DictionaryEntry entry in dict)
            {
                writer.WriteName(JsonUtil.Escape(keyFunc(entry.Key)));
                //writer.WriteJsonValue(base.ObjectToJson(entry.Value));
                writer.WriteValue(entry.Value);
            }
            writer.WriteObjectEnd();

            return(writer.ToString());
        }
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        void _writeObject(object obj, EasyJsonWriter writer)
        {
            if (obj == null)
            {
                writer.WriteJsonValue(null);
                return;
            }

            if (++_depth > MAX_DEPTH)
            {
                throw new EasyJsonException("Class nested level is beyond max depth, check whether there is a loop");
            }

            Type t = obj.GetType();

            EasyJsonController controller = GetController(t);

            if (controller != null)
            {
                writer.WriteJsonValue(controller.ObjectToJson(obj));
                return;
            }

            writer.WriteObjectStart();

            JsonClassMetadata metadata = _getMetadata(t);

            foreach (KeyValuePair <string, FieldInfo> kv in metadata.Fields)
            {
                _writeObject(kv.Key, kv.Value.GetValue(obj), writer);
            }
            foreach (KeyValuePair <string, PropertyInfo> kv in metadata.Properties)
            {
                MethodInfo getMethod = kv.Value.GetGetMethod();
                if (getMethod == null)
                {
                    throw new EasyJsonException("Fail to access getter of " + kv.Value.Name);
                }

                if (getMethod.GetParameters().Length > 0)
                {
                    continue;
                }

                _writeObject(kv.Key, getMethod.Invoke(obj, null), writer);
            }

            if (metadata.IsDynamicType)
            {
                _writeObject(DYNAMIC_TYPE_NAME, t, writer);
            }

            writer.WriteObjectEnd();
            writer.WriteJsonValue("");
        }
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        public override string ToString()
        {
            if (Type == EasyJsonDataType.JsonObject)
            {
                EasyJsonWriter writer = new EasyJsonWriter();
                writer.WriteObjectStart();
                foreach (string name in Names)
                {
                    writer.WriteName(name);
                    writer.WriteJsonValue(this[name].ToString());
                }
                writer.WriteObjectEnd();

                return(writer.ToString());
            }
            else if (Type == EasyJsonDataType.JsonArray)
            {
                EasyJsonWriter writer = new EasyJsonWriter();
                writer.WriteArrayStart();
                for (int i = 0; i < Count; ++i)
                {
                    writer.WriteJsonValue(this[i].ToString());
                }
                writer.WriteArrayEnd();

                return(writer.ToString());
            }
            else if (Type == EasyJsonDataType.JsonString)
            {
                return(JsonUtil.STRING_QUOTE + Data + JsonUtil.STRING_QUOTE);
            }
            else
            {
                return(Data);
            }
        }