System.Runtime.Serialization.Json.DataContractJsonSerializerImpl.InternalReadObject C# (CSharp) Method

        internal override object InternalReadObject(XmlReaderDelegator xmlReader, bool verifyObjectName)
        {
            if (MaxItemsInObjectGraph == 0)
            {
                throw XmlObjectSerializer.CreateSerializationException(SR.Format(SR.ExceededMaxItemsQuota, MaxItemsInObjectGraph));
            }

            if (verifyObjectName)
            {
                if (!InternalIsStartObject(xmlReader))
                {
                    throw XmlObjectSerializer.CreateSerializationExceptionWithReaderDetails(SR.Format(SR.ExpectingElement, XmlDictionaryString.Empty, RootName), xmlReader);
                }
            }
            else if (!IsStartElement(xmlReader))
            {
                throw XmlObjectSerializer.CreateSerializationExceptionWithReaderDetails(SR.Format(SR.ExpectingElementAtDeserialize, XmlNodeType.Element), xmlReader);
            }

            DataContract contract = RootContract;
            if (contract.IsPrimitive && object.ReferenceEquals(contract.UnderlyingType, _rootType))// handle Nullable<T> differently
            {
                return DataContractJsonSerializerImpl.ReadJsonValue(contract, xmlReader, null);
            }

            XmlObjectSerializerReadContextComplexJson context = XmlObjectSerializerReadContextComplexJson.CreateContext(this, contract);
            return context.InternalDeserialize(xmlReader, _rootType, contract, null, null);
        }