mcs/class/System.Runtime.Serialization/ReferenceSources/JsonFormatWriterGenerator_static.cs

   1 using System;
   2 using System.Collections;
   3 using System.Collections.Generic;
   4 using System.Linq;
   5 using System.Reflection;
   6 using System.Xml;
   7
   8 namespace System.Runtime.Serialization.Json
   9 {
  10         internal partial class JsonFormatWriterGenerator
  11         {
  12                 partial class CriticalHelper
  13                 {
  14                         internal JsonFormatClassWriterDelegate GenerateClassWriter(ClassDataContract classContract)
  15                         {
  16                                 return (XmlWriterDelegator xmlWriter, object obj, XmlObjectSerializerWriteContextComplexJson context, ClassDataContract dataContract, XmlDictionaryString [] memberNames) => new JsonFormatWriterInterpreter (classContract).WriteToJson (xmlWriter, obj, context, dataContract, memberNames);
  17                         }
  18                         internal JsonFormatCollectionWriterDelegate GenerateCollectionWriter(CollectionDataContract collectionContract)
  19                         {
  20                                 return (XmlWriterDelegator xmlWriter, object obj, XmlObjectSerializerWriteContextComplexJson context, CollectionDataContract dataContract) => new JsonFormatWriterInterpreter (collectionContract).WriteCollectionToJson (xmlWriter, obj, context, dataContract);
  21                         }
  22                 }
  23         }
  24
  25         class JsonFormatWriterInterpreter
  26         {
  27                 public JsonFormatWriterInterpreter (ClassDataContract classContract)
  28                 {
  29                         this.classContract = classContract;
  30                 }
  31
  32                 public JsonFormatWriterInterpreter (CollectionDataContract collectionContract)
  33                 {
  34                         this.collectionContract = collectionContract;
  35                 }
  36
  37                 ClassDataContract classContract;
  38
  39                 CollectionDataContract collectionContract;
  40
  41                 XmlWriterDelegator writer = null;
  42                 object obj = null;
  43                 XmlObjectSerializerWriteContextComplexJson context = null;
  44                 DataContract dataContract = null;
  45                 object objLocal = null;
  46
  47                 ClassDataContract classDataContract {
  48                         get { return (ClassDataContract) dataContract; }
  49                 }
  50                 CollectionDataContract collectionDataContract {
  51                         get {return (CollectionDataContract) dataContract; }
  52                 }
  53
  54                 XmlDictionaryString [] memberNames = null;
  55                 int typeIndex = 1;
  56                 int childElementIndex = 0;
  57
  58                 public void WriteToJson (XmlWriterDelegator xmlWriter, object obj, XmlObjectSerializerWriteContextComplexJson context, ClassDataContract dataContract, XmlDictionaryString [] memberNames)
  59                 {
  60                         this.writer = xmlWriter;
  61                         this.obj = obj;
  62                         this.context = context;
  63                         this.dataContract = dataContract;
  64                         this.memberNames = memberNames;
  65
  66                         InitArgs (classContract.UnderlyingType);
  67
  68                         // DemandSerializationFormatterPermission (classContract) - irrelevant
  69                         // DemandMemberAccessPermission (memberAccessFlag) - irrelevant
  70
  71                         if (classContract.IsReadOnlyContract)
  72                         {
  73                                 DataContract.ThrowInvalidDataContractException (classContract.SerializationExceptionMessage, null);
  74                         }
  75
  76                         WriteClass (classContract);
  77                 }
  78
  79                 public void WriteCollectionToJson (XmlWriterDelegator xmlWriter, object obj, XmlObjectSerializerWriteContextComplexJson context, CollectionDataContract dataContract)
  80                 {
  81                         this.writer = xmlWriter;
  82                         this.obj = obj;
  83                         this.context = context;
  84                         this.dataContract = dataContract;
  85
  86                         InitArgs (collectionContract.UnderlyingType);
  87
  88                         // DemandMemberAccessPermission(memberAccessFlag);
  89                         if (collectionContract.IsReadOnlyContract)
  90                         {
  91                                 DataContract.ThrowInvalidDataContractException (collectionContract.SerializationExceptionMessage, null);
  92                         }
  93
  94                         WriteCollection (collectionContract);
  95                 }
  96
  97                 void InitArgs (Type objType)
  98                 {
  99                         if (objType == Globals.TypeOfDateTimeOffsetAdapter) {
 100                                 objLocal = DateTimeOffsetAdapter.GetDateTimeOffsetAdapter ((DateTimeOffset) obj);
 101                         }
 102                         else
 103                                 objLocal = CodeInterpreter.ConvertValue (obj, typeof (object), objType);
 104                 }
 105
 106                 void InvokeOnSerializing (ClassDataContract classContract, object objSerialized, XmlObjectSerializerWriteContext context)
 107                 {
 108                         if (classContract.BaseContract != null)
 109                                 InvokeOnSerializing (classContract.BaseContract, objSerialized, context);
 110                         if (classContract.OnSerializing != null) {
 111                                 classContract.OnSerializing.Invoke (objSerialized, new object [] {context.GetStreamingContext ()});
 112                         }
 113                 }
 114
 115                 void InvokeOnSerialized (ClassDataContract classContract, object objSerialized, XmlObjectSerializerWriteContext context)
 116                 {
 117                         if (classContract.BaseContract != null)
 118                                 InvokeOnSerialized (classContract.BaseContract, objSerialized, context);
 119                         if (classContract.OnSerialized != null) {
 120                                 classContract.OnSerialized.Invoke (objSerialized, new object [] {context.GetStreamingContext ()});
 121                         }
 122                 }
 123
 124                 void WriteClass (ClassDataContract classContract)
 125                 {
 126                         InvokeOnSerializing (classContract, objLocal, context);
 127
 128                         if (classContract.IsISerializable)
 129                                 context.WriteJsonISerializable (writer, (ISerializable) objLocal);
 130                         else
 131                         {
 132                                 if (classContract.HasExtensionData)
 133                                 {
 134                                         ExtensionDataObject extensionData = ((IExtensibleDataObject) objLocal).ExtensionData;
 135                                         context.WriteExtensionData (writer, extensionData, -1);
 136
 137                                         WriteMembers (classContract, extensionData, classContract);
 138                                 }
 139                                 else
 140                                         WriteMembers (classContract, null, classContract);
 141                         }
 142                         InvokeOnSerialized (classContract, objLocal, context);
 143                 }
 144
 145                 void WriteCollection(CollectionDataContract collectionContract)
 146                 {
 147                         XmlDictionaryString itemName = context.CollectionItemName;
 148
 149                         if (collectionContract.Kind == CollectionKind.Array)
 150                         {
 151                                 Type itemType = collectionContract.ItemType;
 152                                 int i;
 153
 154                                 // This check does not exist in the original dynamic code,
 155                                 // but there is no other way to check type mismatch.
 156                                 // CollectionSerialization.ArrayContract() shows that it is required.
 157                                 if (objLocal.GetType ().GetElementType () != itemType)
 158                                         throw new InvalidCastException (string.Format ("Cannot cast array of {0} to array of {1}", objLocal.GetType ().GetElementType (), itemType));
 159
 160                                 context.IncrementArrayCount (writer, (Array) objLocal);
 161
 162                                 if (!TryWritePrimitiveArray(collectionContract.UnderlyingType, itemType, () => objLocal, itemName))
 163                                 {
 164                                         WriteArrayAttribute ();
 165                                         var arr = (Array) objLocal;
 166                                         var idx = new int [1];
 167                                         for (i = 0; i < arr.Length; i++) {
 168                                                 if (!TryWritePrimitive(itemType, null, null, i, itemName, 0)) {
 169                                                         WriteStartElement (itemName, 0);
 170                                                         idx [0] = i;
 171                                                         var mbrVal = arr.GetValue (idx);
 172                                                         WriteValue (itemType, mbrVal);
 173                                                         WriteEndElement ();
 174                                                 }
 175                                         }
 176                                 }
 177                         }
 178                         else
 179                         {
 180                                 // This check does not exist in the original dynamic code,
 181                                 // but there is no other way to check type mismatch.
 182                                 // CollectionSerialization.ArrayContract() shows that it is required.
 183                                 if (!collectionContract.UnderlyingType.IsAssignableFrom (objLocal.GetType ()))
 184                                         throw new InvalidCastException (string.Format ("Cannot cast {0} to {1}", objLocal.GetType (), collectionContract.UnderlyingType));
 185
 186                                 MethodInfo incrementCollectionCountMethod = null;
 187                                 switch (collectionContract.Kind)
 188                                 {
 189                                 case CollectionKind.Collection:
 190                                 case CollectionKind.List:
 191                                 case CollectionKind.Dictionary:
 192                                         incrementCollectionCountMethod = XmlFormatGeneratorStatics.IncrementCollectionCountMethod;
 193                                         break;
 194                                 case CollectionKind.GenericCollection:
 195                                 case CollectionKind.GenericList:
 196                                         incrementCollectionCountMethod = XmlFormatGeneratorStatics.IncrementCollectionCountGenericMethod.MakeGenericMethod(collectionContract.ItemType);
 197                                         break;
 198                                 case CollectionKind.GenericDictionary:
 199                                         incrementCollectionCountMethod = XmlFormatGeneratorStatics.IncrementCollectionCountGenericMethod.MakeGenericMethod(Globals.TypeOfKeyValuePair.MakeGenericType(collectionContract.ItemType.GetGenericArguments()));
 200                                         break;
 201                                 }
 202                                 if (incrementCollectionCountMethod != null)
 203                                         incrementCollectionCountMethod.Invoke (context, new object [] {writer, objLocal});
 204
 205                                 bool isDictionary = false, isGenericDictionary = false;
 206                                 Type enumeratorType = null;
 207                                 Type [] keyValueTypes = null;
 208                                 if (collectionContract.Kind == CollectionKind.GenericDictionary)
 209                                 {
 210                                         isGenericDictionary = true;
 211                                         keyValueTypes = collectionContract.ItemType.GetGenericArguments ();
 212                                         enumeratorType = Globals.TypeOfGenericDictionaryEnumerator.MakeGenericType (keyValueTypes);
 213                                 }
 214                                 else if (collectionContract.Kind == CollectionKind.Dictionary)
 215                                 {
 216                                         isDictionary = true;
 217                                         keyValueTypes = new Type[] { Globals.TypeOfObject, Globals.TypeOfObject };
 218                                         enumeratorType = Globals.TypeOfDictionaryEnumerator;
 219                                 }
 220                                 else
 221                                 {
 222                                         enumeratorType = collectionContract.GetEnumeratorMethod.ReturnType;
 223                                 }
 224                                 MethodInfo moveNextMethod = enumeratorType.GetMethod (Globals.MoveNextMethodName, BindingFlags.Instance | BindingFlags.Public, null, Globals.EmptyTypeArray, null);
 225                                 MethodInfo getCurrentMethod = enumeratorType.GetMethod (Globals.GetCurrentMethodName, BindingFlags.Instance | BindingFlags.Public, null, Globals.EmptyTypeArray, null);
 226                                 if (moveNextMethod == null || getCurrentMethod == null)
 227                                 {
 228                                         if (enumeratorType.IsInterface)
 229                                         {
 230                                                 if (moveNextMethod == null)
 231                                                         moveNextMethod = JsonFormatGeneratorStatics.MoveNextMethod;
 232                                                 if (getCurrentMethod == null)
 233                                                         getCurrentMethod = JsonFormatGeneratorStatics.GetCurrentMethod;
 234                                         }
 235                                         else
 236                                         {
 237                                                 Type ienumeratorInterface = Globals.TypeOfIEnumerator;
 238                                                 CollectionKind kind = collectionContract.Kind;
 239                                                 if (kind == CollectionKind.GenericDictionary || kind == CollectionKind.GenericCollection || kind == CollectionKind.GenericEnumerable)
 240                                                 {
 241                                                         Type[] interfaceTypes = enumeratorType.GetInterfaces();
 242                                                         foreach (Type interfaceType in interfaceTypes)
 243                                                         {
 244                                                                 if (interfaceType.IsGenericType
 245                                                                         && interfaceType.GetGenericTypeDefinition() == Globals.TypeOfIEnumeratorGeneric
 246                                                                         && interfaceType.GetGenericArguments()[0] == collectionContract.ItemType)
 247                                                                 {
 248                                                                         ienumeratorInterface = interfaceType;
 249                                                                         break;
 250                                                                 }
 251                                                         }
 252                                                 }
 253                                                 if (moveNextMethod == null)
 254                                                         moveNextMethod = CollectionDataContract.GetTargetMethodWithName(Globals.MoveNextMethodName, enumeratorType, ienumeratorInterface);
 255                                                 if (getCurrentMethod == null)
 256                                                         getCurrentMethod = CollectionDataContract.GetTargetMethodWithName(Globals.GetCurrentMethodName, enumeratorType, ienumeratorInterface);
 257                                         }
 258                                 }
 259                                 Type elementType = getCurrentMethod.ReturnType;
 260                                 object currentValue = null; // of elementType
 261
 262                                 var enumerator = (IEnumerator) collectionContract.GetEnumeratorMethod.Invoke (objLocal, new object [0]);
 263                                 if (isDictionary)
 264                                 {
 265                                         ConstructorInfo dictEnumCtor = enumeratorType.GetConstructor (Globals.ScanAllMembers, null, new Type[] { Globals.TypeOfIDictionaryEnumerator }, null);
 266                                         enumerator = (IEnumerator) dictEnumCtor.Invoke (new object [] {enumerator});
 267                                 }
 268                                 else if (isGenericDictionary)
 269                                 {
 270                                         Type ctorParam = Globals.TypeOfIEnumeratorGeneric.MakeGenericType(Globals.TypeOfKeyValuePair.MakeGenericType(keyValueTypes));
 271                                         ConstructorInfo dictEnumCtor = enumeratorType.GetConstructor(Globals.ScanAllMembers, null, new Type[] { ctorParam }, null);
 272                                         enumerator = (IEnumerator) Activator.CreateInstance (enumeratorType, new object [] {enumerator});
 273                                 }
 274
 275                                 bool canWriteSimpleDictionary = isDictionary || isGenericDictionary;
 276
 277                                 bool writeSimpleDictionary = canWriteSimpleDictionary && context.UseSimpleDictionaryFormat;
 278                                 PropertyInfo genericDictionaryKeyProperty = null, genericDictionaryValueProperty = null;
 279
 280                                 if (canWriteSimpleDictionary)
 281                                 {
 282                                         Type genericDictionaryKeyValueType = Globals.TypeOfKeyValue.MakeGenericType (keyValueTypes);
 283                                         genericDictionaryKeyProperty = genericDictionaryKeyValueType.GetProperty (JsonGlobals.KeyString);
 284                                         genericDictionaryValueProperty = genericDictionaryKeyValueType.GetProperty (JsonGlobals.ValueString);
 285                                 }
 286
 287                                 if (writeSimpleDictionary) {
 288                                         WriteObjectAttribute ();
 289                                         object key, value;
 290                                         var empty_args = new object [0];
 291                                         while ((bool) moveNextMethod.Invoke (enumerator, empty_args)) {
 292                                                 currentValue = getCurrentMethod.Invoke (enumerator, empty_args);
 293                                                 key = CodeInterpreter.GetMember (genericDictionaryKeyProperty, currentValue);
 294                                                 value = CodeInterpreter.GetMember (genericDictionaryValueProperty, currentValue);
 295
 296                                                 WriteStartElement (key, 0 /*nameIndex*/);
 297                                                 WriteValue (genericDictionaryValueProperty.PropertyType, value);
 298                                                 WriteEndElement ();
 299                                         }
 300                                 } else {
 301                                         WriteArrayAttribute ();
 302
 303                                         var emptyArray = new object [0];
 304                                         while (enumerator != null && enumerator.MoveNext ()) {
 305                                                 currentValue = getCurrentMethod.Invoke (enumerator, emptyArray);
 306
 307                                                 if (incrementCollectionCountMethod == null)
 308                                                         XmlFormatGeneratorStatics.IncrementItemCountMethod.Invoke (context, new object [] {1});
 309
 310                                                 if (!TryWritePrimitive (elementType, () => currentValue, null, null, itemName, 0))
 311                                                 {
 312                                                         WriteStartElement (itemName, 0);
 313                                                         if (isGenericDictionary || isDictionary) {
 314                                                                 var jc = JsonDataContract.GetJsonDataContract (XmlObjectSerializerWriteContextComplexJson.GetRevisedItemContract (
 315                                                                 collectionDataContract.ItemContract));
 316                                                                 // FIXME: this TypeHandle might be wrong; there is no easy way to get Type for currentValue though.
 317                                                                 DataContractJsonSerializer.WriteJsonValue (jc, writer, currentValue, context, currentValue.GetType ().TypeHandle);
 318                                                         }
 319                                                         else
 320                                                                 WriteValue (elementType, currentValue);
 321                                                         WriteEndElement ();
 322                                                 }
 323                                         }
 324                                 }
 325                         }
 326                 }
 327
 328                 int WriteMembers (ClassDataContract classContract, ExtensionDataObject extensionData, ClassDataContract derivedMostClassContract)
 329                 {
 330                         int memberCount = (classContract.BaseContract == null) ? 0 : WriteMembers (classContract.BaseContract, extensionData, derivedMostClassContract);
 331
 332                         context.IncrementItemCount (classContract.Members.Count);
 333
 334                         for (int i = 0; i < classContract.Members.Count; i++, memberCount++) {
 335
 336                                 DataMember member = classContract.Members[i];
 337                                 Type memberType = member.MemberType;
 338                                 object memberValue = null;
 339                                 if (member.IsGetOnlyCollection)
 340                                         context.StoreIsGetOnlyCollection ();
 341                                 bool doWrite = true, hasMemberValue = false;
 342                                 if (!member.EmitDefaultValue)
 343                                 {
 344                                         hasMemberValue = true;
 345                                         memberValue = LoadMemberValue (member);
 346                                         doWrite = !IsDefaultValue (memberType, memberValue);
 347                                 }
 348
 349                                 if (doWrite) {
 350
 351                                         bool requiresNameAttribute = DataContractJsonSerializer.CheckIfXmlNameRequiresMapping (classContract.MemberNames [i]);
 352
 353                                         if (requiresNameAttribute || !TryWritePrimitive(memberType, hasMemberValue ? () => memberValue : (Func<object>) null, member.MemberInfo, null /*arrayItemIndex*/, null /*nameLocal*/, i + childElementIndex)) {
 354
 355                                                 // Note: DataContractSerializer has member-conflict logic here to deal with the schema export
 356                                                 //       requirement that the same member can't be of two different types.
 357                                                 if (requiresNameAttribute)
 358                                                         XmlObjectSerializerWriteContextComplexJson.WriteJsonNameWithMapping (writer, memberNames, i + childElementIndex);
 359                                                 else
 360                                                         WriteStartElement (null /*nameLocal*/, i + childElementIndex);
 361
 362                                                 if (memberValue == null)
 363                                                         memberValue = LoadMemberValue (member);
 364                                                 WriteValue (memberType, memberValue);
 365                                                 WriteEndElement ();
 366                                         }
 367
 368                                         if (classContract.HasExtensionData)
 369                                                 context.WriteExtensionData (writer, extensionData, memberCount);
 370                                 } else if (!member.EmitDefaultValue) {
 371                                         if (member.IsRequired)
 372                                                 XmlObjectSerializerWriteContext.ThrowRequiredMemberMustBeEmitted (member.Name, classContract.UnderlyingType);
 373                                 }
 374                         }
 375
 376                         typeIndex++;
 377                         childElementIndex += classContract.Members.Count;
 378                         return memberCount;
 379                 }
 380
 381
 382                 internal bool IsDefaultValue (Type type, object value)
 383                 {
 384                         var def = GetDefaultValue (type);
 385                         return def == null ? (object) value == null : def.Equals (value);
 386                 }
 387
 388                 internal object GetDefaultValue(Type type)
 389                 {
 390                         if (type.IsValueType)
 391                         {
 392                                 switch (Type.GetTypeCode(type))
 393                                 {
 394                                 case TypeCode.Boolean:
 395                                         return false;
 396                                 case TypeCode.Char:
 397                                 case TypeCode.SByte:
 398                                 case TypeCode.Byte:
 399                                 case TypeCode.Int16:
 400                                 case TypeCode.UInt16:
 401                                 case TypeCode.Int32:
 402                                 case TypeCode.UInt32:
 403                                         return 0;
 404                                 case TypeCode.Int64:
 405                                 case TypeCode.UInt64:
 406                                         return 0L;
 407                                 case TypeCode.Single:
 408                                         return 0.0F;
 409                                 case TypeCode.Double:
 410                                         return 0.0;
 411                                 case TypeCode.Decimal:
 412                                         return default (decimal);
 413                                 case TypeCode.DateTime:
 414                                         return default (DateTime);
 415                                 }
 416                         }
 417                         return null;
 418                 }
 419
 420                 void WriteStartElement (object nameLocal, int nameIndex)
 421                 {
 422                         var name = nameLocal ?? memberNames [nameIndex];
 423                         XmlDictionaryString namespaceLocal = null;
 424                         if (nameLocal != null && nameLocal is string)
 425                                 writer.WriteStartElement ((string) name, null);
 426                         else if (name is XmlDictionaryString)
 427                                 writer.WriteStartElement ((XmlDictionaryString) name, null);
 428                         else
 429                                 writer.WriteStartElement (name.ToString(), null);
 430                 }
 431
 432                 void WriteEndElement ()
 433                 {
 434                         writer.WriteEndElement ();
 435                 }
 436
 437                 void WriteArrayAttribute ()
 438                 {
 439                         writer.WriteAttributeString (
 440                                 null /* prefix */,
 441                                 JsonGlobals.typeString /* local name */,
 442                                 string.Empty /* namespace */,
 443                                 JsonGlobals.arrayString /* value */);
 444                 }
 445
 446                 void WriteObjectAttribute ()
 447                 {
 448                         writer.WriteAttributeString (
 449                                 null /* prefix */,
 450                                 JsonGlobals.typeString /* local name */,
 451                                 null /* namespace */,
 452                                 JsonGlobals.objectString /* value */);
 453                 }
 454
 455                 void WriteValue (Type memberType, object memberValue)
 456                 {
 457                         Pointer memberValueRefPointer = null;
 458                         if (memberType.IsPointer)
 459                                 memberValueRefPointer = (Pointer) JsonFormatGeneratorStatics.BoxPointer.Invoke (null, new object [] {memberValue, memberType});
 460                         bool isNullableOfT = (memberType.IsGenericType &&
 461                                 memberType.GetGenericTypeDefinition() == Globals.TypeOfNullable);
 462                         if (memberType.IsValueType && !isNullableOfT)
 463                         {
 464                                 PrimitiveDataContract primitiveContract = PrimitiveDataContract.GetPrimitiveDataContract(memberType);
 465                                 if (primitiveContract != null)
 466                                         primitiveContract.XmlFormatContentWriterMethod.Invoke (writer, new object [] {memberValue});
 467                                 else
 468                                         InternalSerialize (XmlFormatGeneratorStatics.InternalSerializeMethod, () => memberValue, memberType, false);
 469                         }
 470                         else
 471                         {
 472                                 bool isNull;
 473                                 if (isNullableOfT)
 474                                         memberValue = UnwrapNullableObject(() => memberValue, ref memberType, out isNull); //Leaves !HasValue on stack
 475                                 else
 476                                         isNull = memberValue == null;
 477                                 if (isNull)
 478                                         XmlFormatGeneratorStatics.WriteNullMethod.Invoke (context, new object [] {writer, memberType, DataContract.IsTypeSerializable(memberType)});
 479                                 else {
 480                                         PrimitiveDataContract primitiveContract = PrimitiveDataContract.GetPrimitiveDataContract(memberType);
 481                                         if (primitiveContract != null && primitiveContract.UnderlyingType != Globals.TypeOfObject) {
 482                                                 if (isNullableOfT)
 483                                                         primitiveContract.XmlFormatContentWriterMethod.Invoke (writer, new object [] {memberValue});
 484                                                 else
 485                                                         primitiveContract.XmlFormatContentWriterMethod.Invoke (context, new object [] {writer, memberValue});
 486                                         } else {
 487                                                 bool isNull2 = false;
 488                                                 if (memberType == Globals.TypeOfObject || //boxed Nullable<T>
 489                                                         memberType == Globals.TypeOfValueType ||
 490                                                         ((IList)Globals.TypeOfNullable.GetInterfaces()).Contains(memberType)) {
 491                                                         var unwrappedMemberValue = CodeInterpreter.ConvertValue (memberValue, memberType.GetType (), Globals.TypeOfObject);
 492                                                         memberValue = unwrappedMemberValue;
 493                                                         isNull2 = memberValue == null;
 494                                                 }
 495                                                 if (isNull2) {
 496                                                         XmlFormatGeneratorStatics.WriteNullMethod.Invoke (context, new object [] {writer, memberType, DataContract.IsTypeSerializable(memberType)});
 497                                                 } else {
 498                                                         InternalSerialize((isNullableOfT ? XmlFormatGeneratorStatics.InternalSerializeMethod : XmlFormatGeneratorStatics.InternalSerializeReferenceMethod),
 499                                                                 () => memberValue, memberType, false);
 500                                                 }
 501                                         }
 502                                 }
 503                         }
 504                 }
 505
 506                 void InternalSerialize (MethodInfo methodInfo, Func<object> memberValue, Type memberType, bool writeXsiType)
 507                 {
 508                         var v = memberValue ();
 509                         var typeHandleValue = Type.GetTypeHandle (v);
 510                         var isDeclaredType = typeHandleValue.Equals (CodeInterpreter.ConvertValue (v, memberType, Globals.TypeOfObject));
 511                         try {
 512                                 methodInfo.Invoke (context, new object [] {writer, memberValue != null ? v : null, isDeclaredType, writeXsiType, DataContract.GetId (memberType.TypeHandle), memberType.TypeHandle});
 513                         } catch (TargetInvocationException ex) {
 514                                 if (ex.InnerException != null)
 515                                         throw ex.InnerException;
 516                                 else
 517                                         throw;
 518                         }
 519                 }
 520
 521                 object UnwrapNullableObject(Func<object> memberValue, ref Type memberType, out bool isNull)// Leaves !HasValue on stack
 522                 {
 523                         object v = memberValue ();
 524                         isNull = false;
 525                         while (memberType.IsGenericType && memberType.GetGenericTypeDefinition () == Globals.TypeOfNullable) {
 526                                 Type innerType = memberType.GetGenericArguments () [0];
 527                                 if ((bool) XmlFormatGeneratorStatics.GetHasValueMethod.MakeGenericMethod (innerType).Invoke (null, new object [] {v}))
 528                                         v = XmlFormatGeneratorStatics.GetNullableValueMethod.MakeGenericMethod (innerType).Invoke (null, new object [] {v});
 529                                 else {
 530                                         isNull = true;
 531                                         v = XmlFormatGeneratorStatics.GetDefaultValueMethod.MakeGenericMethod (memberType).Invoke (null, new object [0]);
 532                                 }
 533                                 memberType = innerType;
 534                         }
 535
 536                         return v;
 537                 }
 538
 539                 bool TryWritePrimitive(Type type, Func<object> value, MemberInfo memberInfo, int? arrayItemIndex, XmlDictionaryString name, int nameIndex)
 540                 {
 541                         PrimitiveDataContract primitiveContract = PrimitiveDataContract.GetPrimitiveDataContract(type);
 542                         if (primitiveContract == null || primitiveContract.UnderlyingType == Globals.TypeOfObject)
 543                                 return false;
 544
 545                         object callee = null;
 546                         var args = new List<object> ();
 547
 548                         // load writer
 549                         if (type.IsValueType)
 550                                 callee = writer;
 551                         else {
 552                                 callee = context;
 553                                 args.Add (writer);
 554                         }
 555                         // load primitive value
 556                         if (value != null)
 557                                 args.Add (value ());
 558                         else if (memberInfo != null)
 559                                 args.Add (CodeInterpreter.GetMember (memberInfo, objLocal));
 560                         else
 561                                 args.Add (((Array) objLocal).GetValue (new int [] {(int) arrayItemIndex}));
 562                         // load name
 563                         if (name != null)
 564                                 args.Add (name);
 565                         else
 566                                 args.Add (memberNames [nameIndex]);
 567                         // load namespace
 568                         args.Add (null);
 569                         // call method to write primitive
 570                         primitiveContract.XmlFormatWriterMethod.Invoke (callee, args.ToArray ());
 571                         return true;
 572                 }
 573
 574                 bool TryWritePrimitiveArray (Type type, Type itemType, Func<object> value, XmlDictionaryString itemName)
 575                 {
 576                         PrimitiveDataContract primitiveContract = PrimitiveDataContract.GetPrimitiveDataContract(itemType);
 577                         if (primitiveContract == null)
 578                                 return false;
 579
 580                         string writeArrayMethod = null;
 581                         switch (Type.GetTypeCode(itemType))
 582                         {
 583                         case TypeCode.Boolean:
 584                                 writeArrayMethod = "WriteJsonBooleanArray";
 585                                 break;
 586                         case TypeCode.DateTime:
 587                                 writeArrayMethod = "WriteJsonDateTimeArray";
 588                                 break;
 589                         case TypeCode.Decimal:
 590                                 writeArrayMethod = "WriteJsonDecimalArray";
 591                                 break;
 592                         case TypeCode.Int32:
 593                                 writeArrayMethod = "WriteJsonInt32Array";
 594                                 break;
 595                         case TypeCode.Int64:
 596                                 writeArrayMethod = "WriteJsonInt64Array";
 597                                 break;
 598                         case TypeCode.Single:
 599                                 writeArrayMethod = "WriteJsonSingleArray";
 600                                 break;
 601                         case TypeCode.Double:
 602                                 writeArrayMethod = "WriteJsonDoubleArray";
 603                                 break;
 604                         default:
 605                                 break;
 606                         }
 607                         if (writeArrayMethod != null)
 608                         {
 609                                 WriteArrayAttribute ();
 610                                 typeof(JsonWriterDelegator).GetMethod(writeArrayMethod, Globals.ScanAllMembers, null, new Type[] { type, typeof(XmlDictionaryString), typeof(XmlDictionaryString) }, null).Invoke (writer, new object [] {value (), itemName, null});
 611                                 return true;
 612                         }
 613                         return false;
 614                 }
 615
 616                 object LoadMemberValue (DataMember member)
 617                 {
 618                         return CodeInterpreter.GetMember (member.MemberInfo, objLocal);
 619                 }
 620         }
 621 }
 622