private LocalBuilder ReadValue(Type type, string name, string ns)
            {
                LocalBuilder value         = _ilg.DeclareLocal(type, "valueRead");
                LocalBuilder nullableValue = null;
                int          nullables     = 0;

                while (type.IsGenericType && type.GetGenericTypeDefinition() == Globals.TypeOfNullable)
                {
                    nullables++;
                    type = type.GetGenericArguments()[0];
                }

                PrimitiveDataContract primitiveContract = PrimitiveDataContract.GetPrimitiveDataContract(type);

                if ((primitiveContract != null && primitiveContract.UnderlyingType != Globals.TypeOfObject) || nullables != 0 || type.IsValueType)
                {
                    LocalBuilder objectId = _ilg.DeclareLocal(Globals.TypeOfString, "objectIdRead");
                    _ilg.Call(_contextArg, XmlFormatGeneratorStatics.ReadAttributesMethod, _xmlReaderArg);
                    _ilg.Call(_contextArg, XmlFormatGeneratorStatics.ReadIfNullOrRefMethod, _xmlReaderArg, type, DataContract.IsTypeSerializable(type));
                    _ilg.Stloc(objectId);
                    // Deserialize null
                    _ilg.If(objectId, Cmp.EqualTo, Globals.NullObjectId);
                    if (nullables != 0)
                    {
                        _ilg.LoadAddress(value);
                        _ilg.InitObj(value.LocalType);
                    }
                    else if (type.IsValueType)
                    {
                        ThrowValidationException(SR.Format(SR.ValueTypeCannotBeNull, DataContract.GetClrTypeFullName(type)));
                    }
                    else
                    {
                        _ilg.Load(null);
                        _ilg.Stloc(value);
                    }

                    // Deserialize value

                    // Compare against Globals.NewObjectId, which is set to string.Empty
                    _ilg.ElseIfIsEmptyString(objectId);
                    _ilg.Call(_contextArg, XmlFormatGeneratorStatics.GetObjectIdMethod);
                    _ilg.Stloc(objectId);
                    if (type.IsValueType)
                    {
                        _ilg.IfNotIsEmptyString(objectId);
                        ThrowValidationException(SR.Format(SR.ValueTypeCannotHaveId, DataContract.GetClrTypeFullName(type)));
                        _ilg.EndIf();
                    }
                    if (nullables != 0)
                    {
                        nullableValue = value;
                        value         = _ilg.DeclareLocal(type, "innerValueRead");
                    }

                    if (primitiveContract != null && primitiveContract.UnderlyingType != Globals.TypeOfObject)
                    {
                        _ilg.Call(_xmlReaderArg, primitiveContract.XmlFormatReaderMethod);
                        _ilg.Stloc(value);
                        if (!type.IsValueType)
                        {
                            _ilg.Call(_contextArg, XmlFormatGeneratorStatics.AddNewObjectMethod, value);
                        }
                    }
                    else
                    {
                        InternalDeserialize(value, type, name, ns);
                    }
                    // Deserialize ref
                    _ilg.Else();
                    if (type.IsValueType)
                    {
                        ThrowValidationException(SR.Format(SR.ValueTypeCannotHaveRef, DataContract.GetClrTypeFullName(type)));
                    }
                    else
                    {
                        _ilg.Call(_contextArg, XmlFormatGeneratorStatics.GetExistingObjectMethod, objectId, type, name, ns);
                        _ilg.ConvertValue(Globals.TypeOfObject, type);
                        _ilg.Stloc(value);
                    }
                    _ilg.EndIf();

                    if (nullableValue != null)
                    {
                        _ilg.If(objectId, Cmp.NotEqualTo, Globals.NullObjectId);
                        WrapNullableObject(value, nullableValue, nullables);
                        _ilg.EndIf();
                        value = nullableValue;
                    }
                }
                else
                {
                    InternalDeserialize(value, type, name, ns);
                }

                return(value);
            }
Exemple #2
0
            void WriteValue(LocalBuilder memberValue, bool writeXsiType)
            {
                Type memberType = memberValue.LocalType;

                if (memberType.IsPointer)
                {
                    ilg.Load(memberValue);
                    ilg.Load(memberType);
                    ilg.Call(XmlFormatGeneratorStatics.BoxPointer);
                    memberType  = Globals.TypeOfReflectionPointer;
                    memberValue = ilg.DeclareLocal(memberType, "memberValueRefPointer");
                    ilg.Store(memberValue);
                }
                bool isNullableOfT = (memberType.IsGenericType &&
                                      memberType.GetGenericTypeDefinition() == Globals.TypeOfNullable);

                if (memberType.IsValueType && !isNullableOfT)
                {
                    PrimitiveDataContract primitiveContract = PrimitiveDataContract.GetPrimitiveDataContract(memberType);
                    if (primitiveContract != null && !writeXsiType)
                    {
                        ilg.Call(xmlWriterArg, primitiveContract.XmlFormatContentWriterMethod, memberValue);
                    }
                    else
                    {
                        InternalSerialize(XmlFormatGeneratorStatics.InternalSerializeMethod, memberValue, memberType, writeXsiType);
                    }
                }
                else
                {
                    if (isNullableOfT)
                    {
                        memberValue = UnwrapNullableObject(memberValue); //Leaves !HasValue on stack
                        memberType  = memberValue.LocalType;
                    }
                    else
                    {
                        ilg.Load(memberValue);
                        ilg.Load(null);
                        ilg.Ceq();
                    }
                    ilg.If();
                    ilg.Call(contextArg, XmlFormatGeneratorStatics.WriteNullMethod, xmlWriterArg, memberType, DataContract.IsTypeSerializable(memberType));
                    ilg.Else();
                    PrimitiveDataContract primitiveContract = PrimitiveDataContract.GetPrimitiveDataContract(memberType);
                    if (primitiveContract != null && primitiveContract.UnderlyingType != Globals.TypeOfObject && !writeXsiType)
                    {
                        if (isNullableOfT)
                        {
                            ilg.Call(xmlWriterArg, primitiveContract.XmlFormatContentWriterMethod, memberValue);
                        }
                        else
                        {
                            ilg.Call(contextArg, primitiveContract.XmlFormatContentWriterMethod, xmlWriterArg, memberValue);
                        }
                    }
                    else
                    {
                        if (memberType == Globals.TypeOfObject || //boxed Nullable<T>
                            memberType == Globals.TypeOfValueType ||
                            ((IList)Globals.TypeOfNullable.GetInterfaces()).Contains(memberType))
                        {
                            ilg.Load(memberValue);
                            ilg.ConvertValue(memberValue.LocalType, Globals.TypeOfObject);
                            memberValue = ilg.DeclareLocal(Globals.TypeOfObject, "unwrappedMemberValue");
                            memberType  = memberValue.LocalType;
                            ilg.Stloc(memberValue);
                            ilg.If(memberValue, Cmp.EqualTo, null);
                            ilg.Call(contextArg, XmlFormatGeneratorStatics.WriteNullMethod, xmlWriterArg, memberType, DataContract.IsTypeSerializable(memberType));
                            ilg.Else();
                        }
                        InternalSerialize((isNullableOfT ? XmlFormatGeneratorStatics.InternalSerializeMethod : XmlFormatGeneratorStatics.InternalSerializeReferenceMethod),
                                          memberValue, memberType, writeXsiType);

                        if (memberType == Globals.TypeOfObject) //boxed Nullable<T>
                        {
                            ilg.EndIf();
                        }
                    }
                    ilg.EndIf();
                }
            }
Exemple #3
0
        public void ReflectionWriteValue(XmlWriterDelegator xmlWriter, XmlObjectSerializerWriteContext context, Type type, object?value, bool writeXsiType, PrimitiveDataContract?primitiveContractForParamType)
        {
            Type   memberType  = type;
            object?memberValue = value;
            bool   originValueIsNullableOfT = (memberType.IsGenericType && memberType.GetGenericTypeDefinition() == Globals.TypeOfNullable);

            if (memberType.IsValueType && !originValueIsNullableOfT)
            {
                Debug.Assert(memberValue != null);

                PrimitiveDataContract?primitiveContract = primitiveContractForParamType;
                if (primitiveContract != null && !writeXsiType)
                {
                    primitiveContract.WriteXmlValue(xmlWriter, memberValue, context);
                }
                else
                {
                    ReflectionInternalSerialize(xmlWriter, context, memberValue, memberValue.GetType().TypeHandle.Equals(memberType.TypeHandle), writeXsiType, memberType);
                }
            }
            else
            {
                if (originValueIsNullableOfT)
                {
                    if (memberValue == null)
                    {
                        memberType = Nullable.GetUnderlyingType(memberType) !;
                    }
                    else
                    {
                        MethodInfo getValue = memberType.GetMethod("get_Value", Type.EmptyTypes) !;
                        memberValue = getValue.Invoke(memberValue, Array.Empty <object>()) !;
                        memberType  = memberValue.GetType();
                    }
                }

                if (memberValue == null)
                {
                    context.WriteNull(xmlWriter, memberType, DataContract.IsTypeSerializable(memberType));
                }
                else
                {
                    PrimitiveDataContract?primitiveContract = originValueIsNullableOfT ? PrimitiveDataContract.GetPrimitiveDataContract(memberType) : primitiveContractForParamType;
                    if (primitiveContract != null && primitiveContract.UnderlyingType != Globals.TypeOfObject && !writeXsiType)
                    {
                        primitiveContract.WriteXmlValue(xmlWriter, memberValue, context);
                    }
                    else
                    {
                        if (memberValue == null &&
                            (memberType == Globals.TypeOfObject ||
                             (originValueIsNullableOfT && memberType.IsValueType)))
                        {
                            context.WriteNull(xmlWriter, memberType, DataContract.IsTypeSerializable(memberType));
                        }
                        else
                        {
                            ReflectionInternalSerialize(xmlWriter, context, memberValue !, memberValue !.GetType().TypeHandle.Equals(memberType.TypeHandle), writeXsiType, memberType, originValueIsNullableOfT);
                        }
                    }
                }
            }
        }
Exemple #4
0
        public void ReflectionWriteCollection(XmlWriterDelegator xmlWriter, object obj, XmlObjectSerializerWriteContext context, CollectionDataContract collectionDataContract)
        {
            XmlDictionaryString ns       = collectionDataContract.Namespace;
            XmlDictionaryString itemName = collectionDataContract.CollectionItemName;

            if (collectionDataContract.ChildElementNamespace != null)
            {
                xmlWriter.WriteNamespaceDecl(collectionDataContract.ChildElementNamespace);
            }

            if (collectionDataContract.Kind == CollectionKind.Array)
            {
                context.IncrementArrayCount(xmlWriter, (Array)obj);
                Type itemType = collectionDataContract.ItemType;
                if (!ReflectionTryWritePrimitiveArray(xmlWriter, obj, collectionDataContract.UnderlyingType, itemType, itemName, ns))
                {
                    Array array = (Array)obj;
                    PrimitiveDataContract primitiveContract = PrimitiveDataContract.GetPrimitiveDataContract(itemType);
                    for (int i = 0; i < array.Length; ++i)
                    {
                        _reflectionClassWriter.ReflectionWriteStartElement(xmlWriter, itemType, ns, ns.Value, itemName.Value, 0);
                        _reflectionClassWriter.ReflectionWriteValue(xmlWriter, context, itemType, array.GetValue(i), false, primitiveContract);
                        _reflectionClassWriter.ReflectionWriteEndElement(xmlWriter);
                    }
                }
            }
            else
            {
                collectionDataContract.IncrementCollectionCount(xmlWriter, obj, context);

                Type                  enumeratorReturnType;
                IEnumerator           enumerator = collectionDataContract.GetEnumeratorForCollection(obj, out enumeratorReturnType);
                PrimitiveDataContract primitiveContractForType = PrimitiveDataContract.GetPrimitiveDataContract(enumeratorReturnType);

                if (primitiveContractForType != null && primitiveContractForType.UnderlyingType != Globals.TypeOfObject)
                {
                    while (enumerator.MoveNext())
                    {
                        object current = enumerator.Current;
                        context.IncrementItemCount(1);
                        primitiveContractForType.WriteXmlElement(xmlWriter, current, context, itemName, ns);
                    }
                }
                else
                {
                    bool isDictionary = collectionDataContract.Kind == CollectionKind.Dictionary || collectionDataContract.Kind == CollectionKind.GenericDictionary;
                    while (enumerator.MoveNext())
                    {
                        object current = enumerator.Current;
                        context.IncrementItemCount(1);
                        _reflectionClassWriter.ReflectionWriteStartElement(xmlWriter, enumeratorReturnType, ns, ns.Value, itemName.Value, 0);
                        if (isDictionary)
                        {
                            collectionDataContract.ItemContract.WriteXmlValue(xmlWriter, current, context);
                        }
                        else
                        {
                            _reflectionClassWriter.ReflectionWriteValue(xmlWriter, context, enumeratorReturnType, current, false, primitiveContractForParamType: null);
                        }

                        _reflectionClassWriter.ReflectionWriteEndElement(xmlWriter);
                    }
                }
            }
        }
        private bool ReflectionTryReadPrimitiveArray(XmlReaderDelegator xmlReader, XmlObjectSerializerReadContext context, XmlDictionaryString collectionItemName, XmlDictionaryString collectionItemNamespace, Type type, Type itemType, int arraySize, out object resultArray)
        {
            resultArray = null;

            PrimitiveDataContract primitiveContract = PrimitiveDataContract.GetPrimitiveDataContract(itemType);

            if (primitiveContract == null)
            {
                return(false);
            }

            switch (itemType.GetTypeCode())
            {
            case TypeCode.Boolean:
            {
                bool[] boolArray = null;
                xmlReader.TryReadBooleanArray(context, collectionItemName, collectionItemNamespace, arraySize, out boolArray);
                resultArray = boolArray;
            }
            break;

            case TypeCode.DateTime:
            {
                DateTime[] dateTimeArray = null;
                xmlReader.TryReadDateTimeArray(context, collectionItemName, collectionItemNamespace, arraySize, out dateTimeArray);
                resultArray = dateTimeArray;
            }
            break;

            case TypeCode.Decimal:
            {
                decimal[] decimalArray = null;
                xmlReader.TryReadDecimalArray(context, collectionItemName, collectionItemNamespace, arraySize, out decimalArray);
                resultArray = decimalArray;
            }
            break;

            case TypeCode.Int32:
            {
                int[] intArray = null;
                xmlReader.TryReadInt32Array(context, collectionItemName, collectionItemNamespace, arraySize, out intArray);
                resultArray = intArray;
            }
            break;

            case TypeCode.Int64:
            {
                long[] longArray = null;
                xmlReader.TryReadInt64Array(context, collectionItemName, collectionItemNamespace, arraySize, out longArray);
                resultArray = longArray;
            }
            break;

            case TypeCode.Single:
            {
                float[] floatArray = null;
                xmlReader.TryReadSingleArray(context, collectionItemName, collectionItemNamespace, arraySize, out floatArray);
                resultArray = floatArray;
            }
            break;

            case TypeCode.Double:
            {
                double[] doubleArray = null;
                xmlReader.TryReadDoubleArray(context, collectionItemName, collectionItemNamespace, arraySize, out doubleArray);
                resultArray = doubleArray;
            }
            break;

            default:
                return(false);
            }
            return(true);
        }
            private void WriteValue(LocalBuilder memberValue, bool writeXsiType)
            {
                Type localType = memberValue.LocalType;

                if (localType.IsPointer)
                {
                    this.ilg.Load(memberValue);
                    this.ilg.Load(localType);
                    this.ilg.Call(XmlFormatGeneratorStatics.BoxPointer);
                    localType   = Globals.TypeOfReflectionPointer;
                    memberValue = this.ilg.DeclareLocal(localType, "memberValueRefPointer");
                    this.ilg.Store(memberValue);
                }
                bool flag = localType.IsGenericType && (localType.GetGenericTypeDefinition() == Globals.TypeOfNullable);

                if (localType.IsValueType && !flag)
                {
                    PrimitiveDataContract primitiveDataContract = PrimitiveDataContract.GetPrimitiveDataContract(localType);
                    if ((primitiveDataContract != null) && !writeXsiType)
                    {
                        this.ilg.Call(this.xmlWriterArg, primitiveDataContract.XmlFormatContentWriterMethod, memberValue);
                    }
                    else
                    {
                        this.InternalSerialize(XmlFormatGeneratorStatics.InternalSerializeMethod, memberValue, localType, writeXsiType);
                    }
                }
                else
                {
                    if (flag)
                    {
                        memberValue = this.UnwrapNullableObject(memberValue);
                        localType   = memberValue.LocalType;
                    }
                    else
                    {
                        this.ilg.Load(memberValue);
                        this.ilg.Load(null);
                        this.ilg.Ceq();
                    }
                    this.ilg.If();
                    this.ilg.Call(this.contextArg, XmlFormatGeneratorStatics.WriteNullMethod, this.xmlWriterArg, localType, DataContract.IsTypeSerializable(localType));
                    this.ilg.Else();
                    PrimitiveDataContract contract2 = PrimitiveDataContract.GetPrimitiveDataContract(localType);
                    if (((contract2 != null) && (contract2.UnderlyingType != Globals.TypeOfObject)) && !writeXsiType)
                    {
                        if (flag)
                        {
                            this.ilg.Call(this.xmlWriterArg, contract2.XmlFormatContentWriterMethod, memberValue);
                        }
                        else
                        {
                            this.ilg.Call(this.contextArg, contract2.XmlFormatContentWriterMethod, this.xmlWriterArg, memberValue);
                        }
                    }
                    else
                    {
                        if (((localType == Globals.TypeOfObject) || (localType == Globals.TypeOfValueType)) || Globals.TypeOfNullable.GetInterfaces().Contains(localType))
                        {
                            this.ilg.Load(memberValue);
                            this.ilg.ConvertValue(memberValue.LocalType, Globals.TypeOfObject);
                            memberValue = this.ilg.DeclareLocal(Globals.TypeOfObject, "unwrappedMemberValue");
                            localType   = memberValue.LocalType;
                            this.ilg.Stloc(memberValue);
                            this.ilg.If(memberValue, Cmp.EqualTo, null);
                            this.ilg.Call(this.contextArg, XmlFormatGeneratorStatics.WriteNullMethod, this.xmlWriterArg, localType, DataContract.IsTypeSerializable(localType));
                            this.ilg.Else();
                        }
                        this.InternalSerialize(flag ? XmlFormatGeneratorStatics.InternalSerializeMethod : XmlFormatGeneratorStatics.InternalSerializeReferenceMethod, memberValue, localType, writeXsiType);
                        if (localType == Globals.TypeOfObject)
                        {
                            this.ilg.EndIf();
                        }
                    }
                    this.ilg.EndIf();
                }
            }
Exemple #7
0
 private DataContract?ResolveDataContractFromKnownTypes(XmlQualifiedName typeName) =>
 PrimitiveDataContract.GetPrimitiveDataContract(typeName.Name, typeName.Namespace) ??
 scopedKnownTypes.GetDataContract(typeName) ??
 GetDataContractFromSerializerKnownTypes(typeName);
        void WriteValue(Type memberType, object memberValue, bool writeXsiType)
        {
            Pointer memberValueRefPointer = null;

            if (memberType.IsPointer)
            {
                memberValueRefPointer = (Pointer)XmlFormatGeneratorStatics.BoxPointer.Invoke(null, new object [] { memberValue, memberType });
            }
            bool isNullableOfT = (memberType.IsGenericType &&
                                  memberType.GetGenericTypeDefinition() == Globals.TypeOfNullable);

            if (memberType.IsValueType && !isNullableOfT)
            {
                PrimitiveDataContract primitiveContract = PrimitiveDataContract.GetPrimitiveDataContract(memberType);
                if (primitiveContract != null && !writeXsiType)
                {
                    primitiveContract.XmlFormatContentWriterMethod.Invoke(writer, new object [] { memberValue });
                }
                else
                {
                    InternalSerialize(XmlFormatGeneratorStatics.InternalSerializeMethod, () => memberValue, memberType, writeXsiType);
                }
            }
            else
            {
                bool isNull;
                if (isNullableOfT)
                {
                    memberValue = UnwrapNullableObject(() => memberValue, ref memberType, out isNull);                     //Leaves !HasValue on stack
                }
                else
                {
                    isNull = memberValue == null;
                }
                if (isNull)
                {
                    XmlFormatGeneratorStatics.WriteNullMethod.Invoke(ctx, new object [] { writer, memberType, DataContract.IsTypeSerializable(memberType) });
                }
                else
                {
                    PrimitiveDataContract primitiveContract = PrimitiveDataContract.GetPrimitiveDataContract(memberType);
                    if (primitiveContract != null && primitiveContract.UnderlyingType != Globals.TypeOfObject && !writeXsiType)
                    {
                        if (isNullableOfT)
                        {
                            primitiveContract.XmlFormatContentWriterMethod.Invoke(writer, new object [] { memberValue });
                        }
                        else
                        {
                            primitiveContract.XmlFormatContentWriterMethod.Invoke(ctx, new object [] { writer, memberValue });
                        }
                    }
                    else
                    {
                        bool isNull2 = false;
                        if (memberType == Globals.TypeOfObject ||                         //boxed Nullable<T>
                            memberType == Globals.TypeOfValueType ||
                            ((IList)Globals.TypeOfNullable.GetInterfaces()).Contains(memberType))
                        {
                            var unwrappedMemberValue = CodeInterpreter.ConvertValue(memberValue, memberType.GetType(), Globals.TypeOfObject);
                            memberValue = unwrappedMemberValue;
                            isNull2     = memberValue == null;
                        }
                        if (isNull2)
                        {
                            XmlFormatGeneratorStatics.WriteNullMethod.Invoke(ctx, new object [] { writer, memberType, DataContract.IsTypeSerializable(memberType) });
                        }
                        else
                        {
                            InternalSerialize((isNullableOfT ? XmlFormatGeneratorStatics.InternalSerializeMethod : XmlFormatGeneratorStatics.InternalSerializeReferenceMethod),
                                              () => memberValue, memberType, writeXsiType);
                        }
                    }
                }
            }
        }
        object ReadValue(Type type, string name, string ns)
        {
            var    valueType = type;
            object value     = null;
            bool   shouldAssignNullableValue = false;
            int    nullables = 0;

            while (type.IsGenericType && type.GetGenericTypeDefinition() == Globals.TypeOfNullable)
            {
                nullables++;
                type = type.GetGenericArguments() [0];
            }

            PrimitiveDataContract primitiveContract = PrimitiveDataContract.GetPrimitiveDataContract(type);

            if ((primitiveContract != null && primitiveContract.UnderlyingType != Globals.TypeOfObject) || nullables != 0 || type.IsValueType)
            {
                context.ReadAttributes(xmlReader);
                string objectId = context.ReadIfNullOrRef(xmlReader, type, DataContract.IsTypeSerializable(type));
                // Deserialize null
                if (objectId == Globals.NullObjectId)
                {
                    if (nullables != 0)
                    {
                        value = Activator.CreateInstance(valueType);
                    }
                    else if (type.IsValueType)
                    {
                        throw new SerializationException(SR.GetString(SR.ValueTypeCannotBeNull, DataContract.GetClrTypeFullName(type)));
                    }
                    else
                    {
                        value = null;
                    }
                }
                else if (objectId == string.Empty)
                {
                    // Deserialize value

                    // Compare against Globals.NewObjectId, which is set to string.Empty

                    objectId = context.GetObjectId();

                    if (type.IsValueType)
                    {
                        if (!string.IsNullOrEmpty(objectId))
                        {
                            throw new SerializationException(SR.GetString(SR.ValueTypeCannotHaveId, DataContract.GetClrTypeFullName(type)));
                        }
                    }
                    object innerValueRead = null;
                    if (nullables != 0)
                    {
                        shouldAssignNullableValue = true;
                    }

                    if (primitiveContract != null && primitiveContract.UnderlyingType != Globals.TypeOfObject)
                    {
                        value = primitiveContract.XmlFormatReaderMethod.Invoke(xmlReader, new object [0]);
                        if (!type.IsValueType)
                        {
                            context.AddNewObject(value);
                        }
                    }
                    else
                    {
                        value = InternalDeserialize(type, name, ns);
                    }
                }
                else
                {
                    // Deserialize ref
                    if (type.IsValueType)
                    {
                        throw new SerializationException(SR.GetString(SR.ValueTypeCannotHaveRef, DataContract.GetClrTypeFullName(type)));
                    }
                    else
                    {
                        value = CodeInterpreter.ConvertValue(context.GetExistingObject(objectId, type, name, ns), Globals.TypeOfObject, type);
                    }
                }

                if (shouldAssignNullableValue)
                {
                    if (objectId != Globals.NullObjectId)
                    {
                        value = WrapNullableObject(type, value, valueType, nullables);
                    }
                }
            }
            else
            {
                value = InternalDeserialize(type, name, ns);
            }

            return(value);
        }
Exemple #10
0
            private LocalBuilder ReadValue(Type type, string name, string ns)
            {
                LocalBuilder builder    = this.ilg.DeclareLocal(type, "valueRead");
                LocalBuilder outerValue = null;
                int          nullables  = 0;

                while (type.IsGenericType && (type.GetGenericTypeDefinition() == Globals.TypeOfNullable))
                {
                    nullables++;
                    type = type.GetGenericArguments()[0];
                }
                PrimitiveDataContract primitiveDataContract = PrimitiveDataContract.GetPrimitiveDataContract(type);

                if (((primitiveDataContract != null) && (primitiveDataContract.UnderlyingType != Globals.TypeOfObject)) || ((nullables != 0) || type.IsValueType))
                {
                    LocalBuilder local = this.ilg.DeclareLocal(Globals.TypeOfString, "objectIdRead");
                    this.ilg.Call(this.contextArg, XmlFormatGeneratorStatics.ReadAttributesMethod, this.xmlReaderArg);
                    this.ilg.Call(this.contextArg, XmlFormatGeneratorStatics.ReadIfNullOrRefMethod, this.xmlReaderArg, type, DataContract.IsTypeSerializable(type));
                    this.ilg.Stloc(local);
                    this.ilg.If(local, Cmp.EqualTo, null);
                    if (nullables != 0)
                    {
                        this.ilg.LoadAddress(builder);
                        this.ilg.InitObj(builder.LocalType);
                    }
                    else if (type.IsValueType)
                    {
                        this.ThrowValidationException(System.Runtime.Serialization.SR.GetString("ValueTypeCannotBeNull", new object[] { DataContract.GetClrTypeFullName(type) }), new object[0]);
                    }
                    else
                    {
                        this.ilg.Load(null);
                        this.ilg.Stloc(builder);
                    }
                    this.ilg.ElseIfIsEmptyString(local);
                    this.ilg.Call(this.contextArg, XmlFormatGeneratorStatics.GetObjectIdMethod);
                    this.ilg.Stloc(local);
                    if (type.IsValueType)
                    {
                        this.ilg.IfNotIsEmptyString(local);
                        this.ThrowValidationException(System.Runtime.Serialization.SR.GetString("ValueTypeCannotHaveId", new object[] { DataContract.GetClrTypeFullName(type) }), new object[0]);
                        this.ilg.EndIf();
                    }
                    if (nullables != 0)
                    {
                        outerValue = builder;
                        builder    = this.ilg.DeclareLocal(type, "innerValueRead");
                    }
                    if ((primitiveDataContract != null) && (primitiveDataContract.UnderlyingType != Globals.TypeOfObject))
                    {
                        this.ilg.Call(this.xmlReaderArg, primitiveDataContract.XmlFormatReaderMethod);
                        this.ilg.Stloc(builder);
                        if (!type.IsValueType)
                        {
                            this.ilg.Call(this.contextArg, XmlFormatGeneratorStatics.AddNewObjectMethod, builder);
                        }
                    }
                    else
                    {
                        this.InternalDeserialize(builder, type, name, ns);
                    }
                    this.ilg.Else();
                    if (type.IsValueType)
                    {
                        this.ThrowValidationException(System.Runtime.Serialization.SR.GetString("ValueTypeCannotHaveRef", new object[] { DataContract.GetClrTypeFullName(type) }), new object[0]);
                    }
                    else
                    {
                        this.ilg.Call(this.contextArg, XmlFormatGeneratorStatics.GetExistingObjectMethod, local, type, name, ns);
                        this.ilg.ConvertValue(Globals.TypeOfObject, type);
                        this.ilg.Stloc(builder);
                    }
                    this.ilg.EndIf();
                    if (outerValue != null)
                    {
                        this.ilg.If(local, Cmp.NotEqualTo, null);
                        this.WrapNullableObject(builder, outerValue, nullables);
                        this.ilg.EndIf();
                        builder = outerValue;
                    }
                    return(builder);
                }
                this.InternalDeserialize(builder, type, name, ns);
                return(builder);
            }