mcs/class/System.Runtime.Serialization/ReferenceSources/XmlFormatWriterGenerator_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
   9 {
  10         internal partial class XmlFormatWriterGenerator
  11         {
  12                 partial class CriticalHelper
  13                 {
  14                         internal XmlFormatClassWriterDelegate GenerateClassWriter(ClassDataContract classContract)
  15                         {
  16                                 return (XmlWriterDelegator xw, object obj, XmlObjectSerializerWriteContext ctx, ClassDataContract ctr) => new XmlFormatWriterInterpreter (classContract).WriteToXml (xw, obj, ctx, ctr);
  17                         }
  18
  19                         internal XmlFormatCollectionWriterDelegate GenerateCollectionWriter(CollectionDataContract collectionContract)
  20                         {
  21                                 return (XmlWriterDelegator xw, object obj, XmlObjectSerializerWriteContext ctx, CollectionDataContract ctr) => new XmlFormatWriterInterpreter (collectionContract).WriteCollectionToXml (xw, obj, ctx, ctr);
  22                         }
  23                 }
  24         }
  25
  26         class XmlFormatWriterInterpreter
  27         {
  28                 public XmlFormatWriterInterpreter (ClassDataContract classContract)
  29                 {
  30                         this.classContract = classContract;
  31                 }
  32
  33                 public XmlFormatWriterInterpreter (CollectionDataContract collectionContract)
  34                 {
  35                         this.collectionContract = collectionContract;
  36                 }
  37
  38                 ClassDataContract classContract;
  39
  40                 CollectionDataContract collectionContract;
  41
  42                 XmlWriterDelegator writer = null;
  43                 object obj = null;
  44                 XmlObjectSerializerWriteContext ctx = null;
  45                 DataContract dataContract = null;
  46                 object objLocal = null;
  47
  48                 ClassDataContract classDataContract {
  49                         get { return (ClassDataContract) dataContract; }
  50                 }
  51                 CollectionDataContract collectionDataContract {
  52                         get {return (CollectionDataContract) dataContract; }
  53                 }
  54
  55                 XmlDictionaryString [] contractNamespaces = null;
  56                 XmlDictionaryString [] memberNames = null;
  57                 XmlDictionaryString [] childElementNamespaces = null;
  58                 int typeIndex = 1;
  59                 int childElementIndex = 0;
  60
  61                 public void WriteToXml (XmlWriterDelegator xmlWriter, object obj, XmlObjectSerializerWriteContext context, ClassDataContract dataContract)
  62                 {
  63                         this.writer = xmlWriter;
  64                         this.obj = obj;
  65                         this.ctx = context;
  66                         this.dataContract = dataContract;
  67
  68                         InitArgs (classContract.UnderlyingType);
  69
  70                         // DemandSerializationFormatterPermission (classContract) - irrelevant
  71                         // DemandMemberAccessPermission (memberAccessFlag) - irrelevant
  72
  73                         if (classContract.IsReadOnlyContract)
  74                         {
  75                                 DataContract.ThrowInvalidDataContractException (classContract.SerializationExceptionMessage, null);
  76                         }
  77
  78                         WriteClass (classContract);
  79                 }
  80
  81                 public void WriteCollectionToXml (XmlWriterDelegator xmlWriter, object obj, XmlObjectSerializerWriteContext context, CollectionDataContract collectionContract)
  82                 {
  83                         this.writer = xmlWriter;
  84                         this.obj = obj;
  85                         this.ctx = context;
  86                         this.dataContract = collectionContract;
  87
  88                         InitArgs (collectionContract.UnderlyingType);
  89
  90                         // DemandMemberAccessPermission(memberAccessFlag);
  91                         if (collectionContract.IsReadOnlyContract)
  92                         {
  93                                 DataContract.ThrowInvalidDataContractException (collectionContract.SerializationExceptionMessage, null);
  94                         }
  95
  96                         WriteCollection (collectionContract);
  97                 }
  98
  99                 void InitArgs (Type objType)
 100                 {
 101                         if (objType == Globals.TypeOfDateTimeOffsetAdapter) {
 102                                 objLocal = DateTimeOffsetAdapter.GetDateTimeOffsetAdapter ((DateTimeOffset) obj);
 103                         }
 104                         else
 105                                 objLocal = CodeInterpreter.ConvertValue (obj, typeof (object), objType);
 106                 }
 107
 108                 void InvokeOnSerializing (ClassDataContract classContract, object objSerialized, XmlObjectSerializerWriteContext ctx)
 109                 {
 110                         if (classContract.BaseContract != null)
 111                                 InvokeOnSerializing (classContract.BaseContract, objSerialized, ctx);
 112                         if (classContract.OnSerializing != null) {
 113                                 classContract.OnSerializing.Invoke (objSerialized, new object [] {ctx.GetStreamingContext ()});
 114                         }
 115                 }
 116
 117                 void InvokeOnSerialized (ClassDataContract classContract, object objSerialized, XmlObjectSerializerWriteContext ctx)
 118                 {
 119                         if (classContract.BaseContract != null)
 120                                 InvokeOnSerialized (classContract.BaseContract, objSerialized, ctx);
 121                         if (classContract.OnSerialized != null) {
 122                                 classContract.OnSerialized.Invoke (objSerialized, new object [] {ctx.GetStreamingContext ()});
 123                         }
 124                 }
 125
 126                 void WriteClass (ClassDataContract classContract)
 127                 {
 128                         InvokeOnSerializing (classContract, objLocal, ctx);
 129
 130                         if (classContract.IsISerializable)
 131                                 ctx.WriteISerializable (writer, (ISerializable) objLocal);
 132                         else
 133                         {
 134                                 if (classContract.ContractNamespaces.Length > 1)
 135                                         contractNamespaces = classDataContract.ContractNamespaces;
 136                                 memberNames = classDataContract.MemberNames;
 137
 138                                 for (int i = 0; i < classContract.ChildElementNamespaces.Length; i++)
 139                                 {
 140                                         if (classContract.ChildElementNamespaces[i] != null)
 141                                         {
 142                                                 childElementNamespaces = classDataContract.ChildElementNamespaces;
 143                                         }
 144                                 }
 145
 146                                 if (classContract.HasExtensionData)
 147                                 {
 148                                         ExtensionDataObject extensionData = ((IExtensibleDataObject) objLocal).ExtensionData;
 149                                         ctx.WriteExtensionData (writer, extensionData, -1);
 150
 151                                         WriteMembers (classContract, extensionData, classContract);
 152                                 }
 153                                 else
 154                                         WriteMembers (classContract, null, classContract);
 155                         }
 156                         InvokeOnSerialized (classContract, objLocal, ctx);
 157                 }
 158
 159                 void WriteCollection(CollectionDataContract collectionContract)
 160                 {
 161                         XmlDictionaryString itemNamespace = dataContract.Namespace;
 162
 163                         XmlDictionaryString itemName = collectionDataContract.CollectionItemName;
 164
 165                         if (collectionContract.ChildElementNamespace != null)
 166                                 writer.WriteNamespaceDecl (collectionDataContract.ChildElementNamespace);
 167
 168                         if (collectionContract.Kind == CollectionKind.Array)
 169                         {
 170                                 Type itemType = collectionContract.ItemType;
 171                                 int i;
 172
 173                                 // This check does not exist in the original dynamic code,
 174                                 // but there is no other way to check type mismatch.
 175                                 // CollectionSerialization.ArrayContract() shows that it is required.
 176                                 if (objLocal.GetType ().GetElementType () != itemType)
 177                                         throw new InvalidCastException (string.Format ("Cannot cast array of {0} to array of {1}", objLocal.GetType ().GetElementType (), itemType));
 178
 179                                 ctx.IncrementArrayCount (writer, (Array) objLocal);
 180
 181                                 if (!TryWritePrimitiveArray(collectionContract.UnderlyingType, itemType, () => objLocal, itemName, itemNamespace))
 182                                 {
 183                                         var arr = (Array) objLocal;
 184                                         var idx = new int [1];
 185                                         for (i = 0; i < arr.Length; i++) {
 186                                                 if (!TryWritePrimitive(itemType, null, null, i, itemNamespace, itemName, 0)) {
 187                                                         WriteStartElement (itemType, collectionContract.Namespace, itemNamespace, itemName, 0);
 188                                                         idx [0] = i;
 189                                                         var mbrVal = arr.GetValue (idx);
 190                                                         WriteValue (itemType, mbrVal, false);
 191                                                         WriteEndElement ();
 192                                                 }
 193                                         }
 194                                 }
 195                         }
 196                         else
 197                         {
 198                                 // This check does not exist in the original dynamic code,
 199                                 // but there is no other way to check type mismatch.
 200                                 // CollectionSerialization.ArrayContract() shows that it is required.
 201                                 if (!collectionContract.UnderlyingType.IsAssignableFrom (objLocal.GetType ()))
 202                                         throw new InvalidCastException (string.Format ("Cannot cast {0} to {1}", objLocal.GetType (), collectionContract.UnderlyingType));
 203
 204                                 MethodInfo incrementCollectionCountMethod = null;
 205                                 switch (collectionContract.Kind)
 206                                 {
 207                                 case CollectionKind.Collection:
 208                                 case CollectionKind.List:
 209                                 case CollectionKind.Dictionary:
 210                                         incrementCollectionCountMethod = XmlFormatGeneratorStatics.IncrementCollectionCountMethod;
 211                                         break;
 212                                 case CollectionKind.GenericCollection:
 213                                 case CollectionKind.GenericList:
 214                                         incrementCollectionCountMethod = XmlFormatGeneratorStatics.IncrementCollectionCountGenericMethod.MakeGenericMethod(collectionContract.ItemType);
 215                                         break;
 216                                 case CollectionKind.GenericDictionary:
 217                                         incrementCollectionCountMethod = XmlFormatGeneratorStatics.IncrementCollectionCountGenericMethod.MakeGenericMethod(Globals.TypeOfKeyValuePair.MakeGenericType(collectionContract.ItemType.GetGenericArguments()));
 218                                         break;
 219                                 }
 220                                 if (incrementCollectionCountMethod != null)
 221                                         incrementCollectionCountMethod.Invoke (ctx, new object [] {writer, objLocal});
 222
 223                                 bool isDictionary = false, isGenericDictionary = false;
 224                                 Type enumeratorType = null;
 225                                 Type [] keyValueTypes = null;
 226                                 if (collectionContract.Kind == CollectionKind.GenericDictionary)
 227                                 {
 228                                         isGenericDictionary = true;
 229                                         keyValueTypes = collectionContract.ItemType.GetGenericArguments ();
 230                                         enumeratorType = Globals.TypeOfGenericDictionaryEnumerator.MakeGenericType (keyValueTypes);
 231                                 }
 232                                 else if (collectionContract.Kind == CollectionKind.Dictionary)
 233                                 {
 234                                         isDictionary = true;
 235                                         keyValueTypes = new Type[] { Globals.TypeOfObject, Globals.TypeOfObject };
 236                                         enumeratorType = Globals.TypeOfDictionaryEnumerator;
 237                                 }
 238                                 else
 239                                 {
 240                                         enumeratorType = collectionContract.GetEnumeratorMethod.ReturnType;
 241                                 }
 242                                 MethodInfo moveNextMethod = enumeratorType.GetMethod (Globals.MoveNextMethodName, BindingFlags.Instance | BindingFlags.Public, null, Globals.EmptyTypeArray, null);
 243                                 MethodInfo getCurrentMethod = enumeratorType.GetMethod (Globals.GetCurrentMethodName, BindingFlags.Instance | BindingFlags.Public, null, Globals.EmptyTypeArray, null);
 244                                 if (moveNextMethod == null || getCurrentMethod == null)
 245                                 {
 246                                         if (enumeratorType.IsInterface)
 247                                         {
 248                                                 if (moveNextMethod == null)
 249                                                         moveNextMethod = XmlFormatGeneratorStatics.MoveNextMethod;
 250                                                 if (getCurrentMethod == null)
 251                                                         getCurrentMethod = XmlFormatGeneratorStatics.GetCurrentMethod;
 252                                         }
 253                                         else
 254                                         {
 255                                                 Type ienumeratorInterface = Globals.TypeOfIEnumerator;
 256                                                 CollectionKind kind = collectionContract.Kind;
 257                                                 if (kind == CollectionKind.GenericDictionary || kind == CollectionKind.GenericCollection || kind == CollectionKind.GenericEnumerable)
 258                                                 {
 259                                                         Type[] interfaceTypes = enumeratorType.GetInterfaces();
 260                                                         foreach (Type interfaceType in interfaceTypes)
 261                                                         {
 262                                                                 if (interfaceType.IsGenericType
 263                                                                         && interfaceType.GetGenericTypeDefinition() == Globals.TypeOfIEnumeratorGeneric
 264                                                                         && interfaceType.GetGenericArguments()[0] == collectionContract.ItemType)
 265                                                                 {
 266                                                                         ienumeratorInterface = interfaceType;
 267                                                                         break;
 268                                                                 }
 269                                                         }
 270                                                 }
 271                                                 if (moveNextMethod == null)
 272                                                         moveNextMethod = CollectionDataContract.GetTargetMethodWithName(Globals.MoveNextMethodName, enumeratorType, ienumeratorInterface);
 273                                                 if (getCurrentMethod == null)
 274                                                         getCurrentMethod = CollectionDataContract.GetTargetMethodWithName(Globals.GetCurrentMethodName, enumeratorType, ienumeratorInterface);
 275                                         }
 276                                 }
 277                                 Type elementType = getCurrentMethod.ReturnType;
 278                                 object currentValue = null; // of elementType
 279
 280                                 var enumerator = (IEnumerator) collectionContract.GetEnumeratorMethod.Invoke (objLocal, new object [0]);
 281                                 if (isDictionary)
 282                                 {
 283                                         enumerator = new CollectionDataContract.DictionaryEnumerator ((IDictionaryEnumerator) enumerator);
 284                                 }
 285                                 else if (isGenericDictionary)
 286                                 {
 287                                         Type ctorParam = Globals.TypeOfIEnumeratorGeneric.MakeGenericType(Globals.TypeOfKeyValuePair.MakeGenericType(keyValueTypes));
 288                                         ConstructorInfo dictEnumCtor = enumeratorType.GetConstructor(Globals.ScanAllMembers, null, new Type[] { ctorParam }, null);
 289                                         enumerator = (IEnumerator) Activator.CreateInstance (enumeratorType, new object [] {enumerator});
 290                                 }
 291
 292                                 var emptyArray = new object [0];
 293                                 while (enumerator != null && enumerator.MoveNext ()) {
 294                                         currentValue = getCurrentMethod.Invoke (enumerator, emptyArray);
 295
 296                                         if (incrementCollectionCountMethod == null)
 297                                                 XmlFormatGeneratorStatics.IncrementItemCountMethod.Invoke (ctx, new object [] {1});
 298
 299                                         if (!TryWritePrimitive (elementType, () => currentValue, null, null, itemNamespace, itemName, 0))
 300                                         {
 301                                                 WriteStartElement (elementType, collectionContract.Namespace, itemNamespace, itemName, 0);
 302                                                 if (isGenericDictionary || isDictionary)
 303                                                         collectionDataContract.ItemContract.WriteXmlValue (writer, currentValue, ctx);
 304                                                 else
 305                                                         WriteValue (elementType, currentValue, false);
 306                                                 WriteEndElement();
 307                                         }
 308                                 }
 309                         }
 310                 }
 311
 312                 int WriteMembers (ClassDataContract classContract, ExtensionDataObject extensionData, ClassDataContract derivedMostClassContract)
 313                 {
 314                         int memberCount = (classContract.BaseContract == null) ? 0 : WriteMembers (classContract.BaseContract, extensionData, derivedMostClassContract);
 315
 316                         XmlDictionaryString ns =
 317                                 (contractNamespaces == null) ? dataContract.Namespace :
 318                                 contractNamespaces [typeIndex - 1];
 319
 320                         ctx.IncrementItemCount (classContract.Members.Count);
 321
 322                         for (int i = 0; i < classContract.Members.Count; i++, memberCount++) {
 323
 324                                 DataMember member = classContract.Members[i];
 325                                 Type memberType = member.MemberType;
 326                                 object memberValue = null;
 327                                 if (member.IsGetOnlyCollection)
 328                                         ctx.StoreIsGetOnlyCollection ();
 329                                 bool doWrite = true, hasMemberValue = false;
 330                                 if (!member.EmitDefaultValue)
 331                                 {
 332                                         hasMemberValue = true;
 333                                         memberValue = LoadMemberValue (member);
 334                                         doWrite = !IsDefaultValue (memberType, memberValue);
 335                                 }
 336
 337                                 if (doWrite) {
 338
 339                                         bool writeXsiType = CheckIfMemberHasConflict (member, classContract, derivedMostClassContract);
 340                                         if (writeXsiType || !TryWritePrimitive (memberType, hasMemberValue ? () => memberValue : (Func<object>) null, member.MemberInfo, null /*arrayItemIndex*/, ns, null /*nameLocal*/, i + childElementIndex)) {
 341                                                 WriteStartElement (memberType, classContract.Namespace, ns, null /*nameLocal*/, i + childElementIndex);
 342                                                 if (classContract.ChildElementNamespaces [i + childElementIndex] != null)
 343                                                         writer.WriteNamespaceDecl (childElementNamespaces [i + childElementIndex]);
 344                                                 if (memberValue == null)
 345                                                         memberValue = LoadMemberValue (member);
 346                                                 WriteValue (memberType, memberValue, writeXsiType);
 347                                                 WriteEndElement ();
 348                                         }
 349
 350                                         if (classContract.HasExtensionData)
 351                                                 ctx.WriteExtensionData (writer, extensionData, memberCount);
 352                                 } else if (!member.EmitDefaultValue) {
 353                                         if (member.IsRequired)
 354                                                 XmlObjectSerializerWriteContext.ThrowRequiredMemberMustBeEmitted (member.Name, classContract.UnderlyingType);
 355                                 }
 356                         }
 357
 358                         typeIndex++;
 359                         childElementIndex += classContract.Members.Count;
 360                         return memberCount;
 361                 }
 362
 363
 364                 internal bool IsDefaultValue (Type type, object value)
 365                 {
 366                         var def = GetDefaultValue (type);
 367                         return def == null ? (object) value == null : def.Equals (value);
 368                 }
 369
 370                 internal object GetDefaultValue(Type type)
 371                 {
 372                         if (type.IsValueType)
 373                         {
 374                                 switch (Type.GetTypeCode(type))
 375                                 {
 376                                 case TypeCode.Boolean:
 377                                         return false;
 378                                 case TypeCode.Char:
 379                                 case TypeCode.SByte:
 380                                 case TypeCode.Byte:
 381                                 case TypeCode.Int16:
 382                                 case TypeCode.UInt16:
 383                                 case TypeCode.Int32:
 384                                 case TypeCode.UInt32:
 385                                         return 0;
 386                                 case TypeCode.Int64:
 387                                 case TypeCode.UInt64:
 388                                         return 0L;
 389                                 case TypeCode.Single:
 390                                         return 0.0F;
 391                                 case TypeCode.Double:
 392                                         return 0.0;
 393                                 case TypeCode.Decimal:
 394                                         return default (decimal);
 395                                 case TypeCode.DateTime:
 396                                         return default (DateTime);
 397                                 }
 398                         }
 399                         return null;
 400                 }
 401
 402                 bool CheckIfMemberHasConflict(DataMember member, ClassDataContract classContract, ClassDataContract derivedMostClassContract)
 403                 {
 404                         // Check for conflict with base type members
 405                         if (CheckIfConflictingMembersHaveDifferentTypes(member))
 406                                 return true;
 407
 408                         // Check for conflict with derived type members
 409                         string name = member.Name;
 410                         string ns = classContract.StableName.Namespace;
 411                         ClassDataContract currentContract = derivedMostClassContract;
 412                         while (currentContract != null && currentContract != classContract)
 413                         {
 414                                 if (ns == currentContract.StableName.Namespace)
 415                                 {
 416                                         List<DataMember> members = currentContract.Members;
 417                                         for (int j = 0; j < members.Count; j++)
 418                                         {
 419                                                 if (name == members[j].Name)
 420                                                         return CheckIfConflictingMembersHaveDifferentTypes(members[j]);
 421                                         }
 422                                 }
 423                                 currentContract = currentContract.BaseContract;
 424                         }
 425
 426                         return false;
 427                 }
 428
 429                 bool CheckIfConflictingMembersHaveDifferentTypes(DataMember member)
 430                 {
 431                         while (member.ConflictingMember != null)
 432                         {
 433                                 if (member.MemberType != member.ConflictingMember.MemberType)
 434                                         return true;
 435                                 member = member.ConflictingMember;
 436                         }
 437                         return false;
 438                 }
 439
 440                 bool NeedsPrefix(Type type, XmlDictionaryString ns)
 441                 {
 442                         return type == Globals.TypeOfXmlQualifiedName && (ns != null && ns.Value != null && ns.Value.Length > 0);
 443                 }
 444
 445                 void WriteStartElement (Type type, XmlDictionaryString ns, XmlDictionaryString namespaceLocal, XmlDictionaryString nameLocal, int nameIndex)
 446                 {
 447                         bool needsPrefix = NeedsPrefix(type, ns);
 448                         nameLocal = nameLocal ?? memberNames [nameIndex];
 449                         if (needsPrefix)
 450                                 writer.WriteStartElement (Globals.ElementPrefix, nameLocal, namespaceLocal);
 451                         else
 452                                 writer.WriteStartElement (nameLocal, namespaceLocal);
 453                 }
 454
 455                 void WriteEndElement ()
 456                 {
 457                         writer.WriteEndElement ();
 458                 }
 459
 460                 void WriteValue (Type memberType, object memberValue, bool writeXsiType)
 461                 {
 462                         Pointer memberValueRefPointer = null;
 463                         if (memberType.IsPointer)
 464                                 memberValueRefPointer = (Pointer) XmlFormatGeneratorStatics.BoxPointer.Invoke (null, new object [] {memberValue, memberType});
 465                         bool isNullableOfT = (memberType.IsGenericType &&
 466                                 memberType.GetGenericTypeDefinition() == Globals.TypeOfNullable);
 467                         if (memberType.IsValueType && !isNullableOfT)
 468                         {
 469                                 PrimitiveDataContract primitiveContract = PrimitiveDataContract.GetPrimitiveDataContract(memberType);
 470                                 if (primitiveContract != null && !writeXsiType)
 471                                         primitiveContract.XmlFormatContentWriterMethod.Invoke (writer, new object [] {memberValue});
 472                                 else {
 473                                         // InternalSerialize(XmlFormatGeneratorStatics.InternalSerializeMethod, () => memberValue, memberType, writeXsiType);
 474                                         var typeHandleValue = Type.GetTypeHandle (memberValue);
 475                                         var isDeclaredType = typeHandleValue.Equals (CodeInterpreter.ConvertValue (memberValue, memberType, Globals.TypeOfObject));
 476
 477                                         ctx.InternalSerialize (writer, memberValue, isDeclaredType, writeXsiType, DataContract.GetId (memberType.TypeHandle), memberType.TypeHandle);
 478                                 }
 479                         }
 480                         else
 481                         {
 482                                 bool isNull;
 483                                 if (isNullableOfT)
 484                                         memberValue = UnwrapNullableObject(() => memberValue, ref memberType, out isNull); //Leaves !HasValue on stack
 485                                 else
 486                                         isNull = memberValue == null;
 487                                 if (isNull)
 488                                         XmlFormatGeneratorStatics.WriteNullMethod.Invoke (ctx, new object [] {writer, memberType, DataContract.IsTypeSerializable(memberType)});
 489                                 else {
 490                                         PrimitiveDataContract primitiveContract = PrimitiveDataContract.GetPrimitiveDataContract(memberType);
 491                                         if (primitiveContract != null && primitiveContract.UnderlyingType != Globals.TypeOfObject && !writeXsiType) {
 492                                                 if (isNullableOfT)
 493                                                         primitiveContract.XmlFormatContentWriterMethod.Invoke (writer, new object [] {memberValue});
 494                                                 else
 495                                                         primitiveContract.XmlFormatContentWriterMethod.Invoke (ctx, new object [] {writer, memberValue});
 496                                         } else {
 497                                                 bool isNull2 = false;
 498                                                 if (memberType == Globals.TypeOfObject || //boxed Nullable<T>
 499                                                         memberType == Globals.TypeOfValueType ||
 500                                                         ((IList)Globals.TypeOfNullable.GetInterfaces()).Contains(memberType)) {
 501                                                         var unwrappedMemberValue = CodeInterpreter.ConvertValue (memberValue, memberType.GetType (), Globals.TypeOfObject);
 502                                                         memberValue = unwrappedMemberValue;
 503                                                         isNull2 = memberValue == null;
 504                                                 }
 505                                                 if (isNull2) {
 506                                                         XmlFormatGeneratorStatics.WriteNullMethod.Invoke (ctx, new object [] {writer, memberType, DataContract.IsTypeSerializable(memberType)});
 507                                                 } else {
 508                                                         var typeHandleValue = Type.GetTypeHandle (memberValue);
 509                                                         var isDeclaredType = typeHandleValue.Equals (CodeInterpreter.ConvertValue (memberValue, memberType, Globals.TypeOfObject));
 510                                                         if (isNullableOfT)
 511                                                                 ctx.InternalSerialize (writer, memberValue, isDeclaredType, writeXsiType, DataContract.GetId (memberType.TypeHandle), memberType.TypeHandle);
 512                                                         else
 513                                                                 ctx.InternalSerializeReference (writer, memberValue, isDeclaredType, writeXsiType, DataContract.GetId (memberType.TypeHandle), memberType.TypeHandle);
 514                                                         //InternalSerialize((isNullableOfT ? XmlFormatGeneratorStatics.InternalSerializeMethod : XmlFormatGeneratorStatics.InternalSerializeReferenceMethod), () => memberValue, memberType, writeXsiType);
 515                                                 }
 516                                         }
 517                                 }
 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 ns, 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 xmlwriter
 549                         if (type.IsValueType)
 550                                 callee = writer;
 551                         else {
 552                                 callee = ctx;
 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 (ns);
 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, XmlDictionaryString itemNamespace)
 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 = "WriteBooleanArray";
 585                                 break;
 586                         case TypeCode.DateTime:
 587                                 writeArrayMethod = "WriteDateTimeArray";
 588                                 break;
 589                         case TypeCode.Decimal:
 590                                 writeArrayMethod = "WriteDecimalArray";
 591                                 break;
 592                         case TypeCode.Int32:
 593                                 writeArrayMethod = "WriteInt32Array";
 594                                 break;
 595                         case TypeCode.Int64:
 596                                 writeArrayMethod = "WriteInt64Array";
 597                                 break;
 598                         case TypeCode.Single:
 599                                 writeArrayMethod = "WriteSingleArray";
 600                                 break;
 601                         case TypeCode.Double:
 602                                 writeArrayMethod = "WriteDoubleArray";
 603                                 break;
 604                         default:
 605                                 break;
 606                         }
 607                         if (writeArrayMethod != null)
 608                         {
 609                                 typeof (XmlWriterDelegator).GetMethod (writeArrayMethod, Globals.ScanAllMembers, null, new Type[] { type, typeof (XmlDictionaryString), typeof (XmlDictionaryString) }, null).Invoke (writer, new object [] {value (), itemName, itemNamespace});
 610                                 return true;
 611                         }
 612                         return false;
 613                 }
 614
 615                 object LoadMemberValue (DataMember member)
 616                 {
 617                         return CodeInterpreter.GetMember (member.MemberInfo, objLocal);
 618                 }
 619         }
 620 }