mcs/class/System.XML/System.Xml.Serialization/XmlSerializationReaderInterpreter.cs

   1 //
   2 // XmlSerializationReaderInterpreter.cs:
   3 //
   4 // Author:
   5 //   Lluis Sanchez Gual (lluis@ximian.com)
   6 //
   7 // (C) 2002, 2003 Ximian, Inc.  http://www.ximian.com
   8 //
   9
  10 //
  11 // Permission is hereby granted, free of charge, to any person obtaining
  12 // a copy of this software and associated documentation files (the
  13 // "Software"), to deal in the Software without restriction, including
  14 // without limitation the rights to use, copy, modify, merge, publish,
  15 // distribute, sublicense, and/or sell copies of the Software, and to
  16 // permit persons to whom the Software is furnished to do so, subject to
  17 // the following conditions:
  18 //
  19 // The above copyright notice and this permission notice shall be
  20 // included in all copies or substantial portions of the Software.
  21 //
  22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  29 //
  30
  31 using System;
  32 using System.Reflection;
  33 using System.Collections;
  34
  35 namespace System.Xml.Serialization
  36 {
  37         internal class XmlSerializationReaderInterpreter: XmlSerializationReader
  38         {
  39                 XmlMapping _typeMap;
  40                 SerializationFormat _format;
  41                 static readonly XmlQualifiedName AnyType = new XmlQualifiedName("anyType", System.Xml.Schema.XmlSchema.Namespace);
  42
  43                 public XmlSerializationReaderInterpreter(XmlMapping typeMap)
  44                 {
  45                         _typeMap = typeMap;
  46                         _format = typeMap.Format;
  47                 }
  48
  49                 protected override void InitCallbacks ()
  50                 {
  51                         ArrayList maps = _typeMap.RelatedMaps;
  52                         if (maps != null)
  53                         {
  54                                 foreach (XmlTypeMapping map in maps)
  55                                 {
  56                                         if (map.TypeData.SchemaType == SchemaTypes.Class || map.TypeData.SchemaType == SchemaTypes.Enum)
  57                                         {
  58                                                 ReaderCallbackInfo info = new ReaderCallbackInfo (this, map);
  59                                                 AddReadCallback (map.XmlType, map.Namespace, map.TypeData.Type, new XmlSerializationReadCallback (info.ReadObject));
  60                                         }
  61                                 }
  62                         }
  63                 }
  64
  65                 protected override void InitIDs ()
  66                 {
  67                 }
  68
  69                 protected XmlTypeMapping GetTypeMap (Type type)
  70                 {
  71                         ArrayList maps = _typeMap.RelatedMaps;
  72                         if (maps != null)
  73                         {
  74                                 foreach (XmlTypeMapping map in maps)
  75                                         if (map.TypeData.Type == type) return map;
  76                         }
  77                         throw new InvalidOperationException ("Type " + type + " not mapped");
  78                 }
  79
  80                 public object ReadRoot ()
  81                 {
  82                         Reader.MoveToContent();
  83                         if (_typeMap is XmlTypeMapping)
  84                         {
  85                                 if (_format == SerializationFormat.Literal)
  86                                         return ReadRoot ((XmlTypeMapping)_typeMap);
  87                                 else
  88                                         return ReadEncodedObject ((XmlTypeMapping)_typeMap);
  89                         }
  90                         else
  91                                 return ReadMessage ((XmlMembersMapping)_typeMap);
  92                 }
  93
  94                 object ReadEncodedObject (XmlTypeMapping typeMap)
  95                 {
  96                         object ob = null;
  97                         Reader.MoveToContent();
  98                         if (Reader.NodeType == System.Xml.XmlNodeType.Element)
  99                         {
 100                                 if (Reader.LocalName == typeMap.ElementName && Reader.NamespaceURI == typeMap.Namespace)
 101                                         ob = ReadReferencedElement();
 102                                 else
 103                                         throw CreateUnknownNodeException();
 104                         }
 105                         else
 106                                 UnknownNode(null);
 107
 108                         ReadReferencedElements();
 109                         return ob;
 110                 }
 111
 112                 protected virtual object ReadMessage (XmlMembersMapping typeMap)
 113                 {
 114                         object[] parameters = new object[typeMap.Count];
 115
 116                         if (typeMap.HasWrapperElement)
 117                         {
 118                                 if (_format == SerializationFormat.Encoded)
 119                                 {
 120                                         while (Reader.NodeType == System.Xml.XmlNodeType.Element)
 121                                         {
 122                                                 string root = Reader.GetAttribute ("root", XmlSerializer.EncodingNamespace);
 123                                                 if (root == null || System.Xml.XmlConvert.ToBoolean(root)) break;
 124                                                 ReadReferencedElement ();
 125                                                 Reader.MoveToContent ();
 126                                         }
 127                                 }
 128
 129                                 while (Reader.NodeType != System.Xml.XmlNodeType.EndElement)
 130                                 {
 131                                         if (Reader.IsStartElement(typeMap.ElementName, typeMap.Namespace)
 132                                             || _format == SerializationFormat.Encoded)
 133                                         {
 134                                                 if (Reader.IsEmptyElement) { Reader.Skip(); Reader.MoveToContent(); continue; }
 135                                                 Reader.ReadStartElement();
 136                                                 ReadMembers ((ClassMap)typeMap.ObjectMap, parameters, true, false);
 137                                                 ReadEndElement();
 138                                                 break;
 139                                         }
 140                                         else
 141                                                 UnknownNode(null);
 142
 143                                         Reader.MoveToContent();
 144                                 }
 145                         }
 146                         else
 147                                 ReadMembers ((ClassMap)typeMap.ObjectMap, parameters, true, _format == SerializationFormat.Encoded);
 148
 149                         if (_format == SerializationFormat.Encoded)
 150                                 ReadReferencedElements();
 151
 152                         return parameters;
 153                 }
 154
 155                 object ReadRoot (XmlTypeMapping rootMap)
 156                 {
 157                         if (rootMap.TypeData.SchemaType == SchemaTypes.XmlNode)
 158                         {
 159                                 return ReadXmlNodeElement (rootMap, true);
 160                         }
 161                         else
 162                         {
 163                                 if (Reader.LocalName != rootMap.ElementName || Reader.NamespaceURI != rootMap.Namespace)
 164                                         throw CreateUnknownNodeException();
 165
 166                                 return ReadObject (rootMap, true, true);
 167                         }
 168                 }
 169
 170
 171                 protected virtual object ReadObject (XmlTypeMapping typeMap, bool isNullable, bool checkType)
 172                 {
 173                         switch (typeMap.TypeData.SchemaType)
 174                         {
 175                                 case SchemaTypes.Class: return ReadClassInstance (typeMap, isNullable, checkType);
 176                                 case SchemaTypes.Array: return ReadListElement (typeMap, isNullable, null, true);
 177                                 case SchemaTypes.XmlNode: return ReadXmlNodeElement (typeMap, isNullable);
 178                                 case SchemaTypes.Primitive: return ReadPrimitiveElement (typeMap, isNullable);
 179                                 case SchemaTypes.Enum: return ReadEnumElement (typeMap, isNullable);
 180                                 case SchemaTypes.XmlSerializable: return ReadXmlSerializableElement (typeMap, isNullable);
 181                                 default: throw new Exception ("Unsupported map type");
 182                         }
 183                 }
 184
 185                 protected virtual object ReadClassInstance (XmlTypeMapping typeMap, bool isNullable, bool checkType)
 186                 {
 187                         if (isNullable && ReadNull()) return null;
 188
 189                         if (checkType)
 190                         {
 191                 System.Xml.XmlQualifiedName t = GetXsiType();
 192                                 if (t != null)
 193                                 {
 194                                         XmlTypeMapping realMap = typeMap.GetRealElementMap (t.Name, t.Namespace);
 195                                         if (realMap == null) {
 196                                                 if (typeMap.TypeData.Type == typeof(object))
 197                                                         return ReadTypedPrimitive (t);
 198                                                 else
 199                                                         throw CreateUnknownTypeException((System.Xml.XmlQualifiedName)t);
 200                                         }
 201                                         if (realMap != typeMap)
 202                                                 return ReadObject (realMap, false, false);
 203                                 }
 204                                 else if (typeMap.TypeData.Type == typeof(object))
 205                                         return ReadTypedPrimitive (AnyType);
 206             }
 207
 208                         object ob = Activator.CreateInstance (typeMap.TypeData.Type);
 209
 210                         Reader.MoveToElement();
 211                         bool isEmpty = Reader.IsEmptyElement;
 212                         ReadClassInstanceMembers (typeMap, ob);
 213
 214                         if (isEmpty) Reader.Skip();
 215                         else ReadEndElement();
 216
 217                         return ob;
 218                 }
 219
 220                 protected virtual void ReadClassInstanceMembers (XmlTypeMapping typeMap, object ob)
 221                 {
 222                         ReadMembers ((ClassMap) typeMap.ObjectMap, ob, false, false);
 223                 }
 224
 225                 void ReadMembers (ClassMap map, object ob, bool isValueList, bool readByOrder)
 226                 {
 227                         // Set the default values of the members
 228                         if (map.MembersWithDefault != null)
 229                         {
 230                                 ArrayList members = map.MembersWithDefault;
 231                                 for (int n=0; n<members.Count; n++) {
 232                                         XmlTypeMapMember mem = (XmlTypeMapMember) members[n];
 233                                         SetMemberValueFromAttr (mem, ob, mem.DefaultValue, isValueList);
 234                                 }
 235                         }
 236
 237                         // Reads attributes
 238
 239                         XmlTypeMapMember anyAttrMember = map.DefaultAnyAttributeMember;
 240                         int anyAttributeIndex = 0;
 241                         object anyAttributeArray = null;
 242
 243                         while (Reader.MoveToNextAttribute())
 244                         {
 245                                 XmlTypeMapMemberAttribute member = map.GetAttribute (Reader.LocalName, Reader.NamespaceURI);
 246
 247                                 if (member != null)
 248                                 {
 249                                         SetMemberValue (member, ob, GetValueFromXmlString (Reader.Value, member.TypeData, member.MappedType), isValueList);
 250                                 }
 251                                 else if (IsXmlnsAttribute(Reader.Name))
 252                                 {
 253                                         // If the map has NamespaceDeclarations,
 254                                         // then store this xmlns to the given member.
 255                                         // If the instance doesn't exist, then create.
 256                                         if (map.NamespaceDeclarations != null) {
 257                                                 XmlSerializerNamespaces nss = this.GetMemberValue (map.NamespaceDeclarations, ob, isValueList) as XmlSerializerNamespaces;
 258                                                 if (nss == null) {
 259                                                         nss = new XmlSerializerNamespaces ();
 260                                                         SetMemberValue (map.NamespaceDeclarations, ob, nss, isValueList);
 261                                                 }
 262                                                 if (Reader.Prefix == "xmlns")
 263                                                         nss.Add (Reader.LocalName, Reader.Value);
 264                                                 else
 265                                                         nss.Add ("", Reader.Value);
 266                                         }
 267                                 }
 268                                 else if (anyAttrMember != null)
 269                                 {
 270                                         XmlAttribute attr = (XmlAttribute) Document.ReadNode(Reader);
 271                                         ParseWsdlArrayType (attr);
 272                                         AddListValue (anyAttrMember.TypeData, ref anyAttributeArray, anyAttributeIndex++, attr, true);
 273                                 }
 274                                 else
 275                                         ProcessUnknownAttribute(ob);
 276                         }
 277
 278                         if (anyAttrMember != null)
 279                         {
 280                                 anyAttributeArray = ShrinkArray ((Array)anyAttributeArray, anyAttributeIndex, anyAttrMember.TypeData.Type.GetElementType(), true);
 281                                 SetMemberValue (anyAttrMember, ob, anyAttributeArray, isValueList);
 282                         }
 283
 284                         if (!isValueList)
 285                         {
 286                                 Reader.MoveToElement();
 287                                 if (Reader.IsEmptyElement) {
 288                                         SetListMembersDefaults (map, ob, isValueList);
 289                                         return;
 290                                 }
 291
 292                                 Reader.ReadStartElement();
 293                         }
 294
 295                         // Reads elements
 296
 297                         bool[] readFlag = new bool[(map.ElementMembers != null) ? map.ElementMembers.Count : 0];
 298
 299                         bool hasAnyReturnMember = (isValueList && _format == SerializationFormat.Encoded && map.ReturnMember != null);
 300
 301                         Reader.MoveToContent();
 302
 303                         int[] indexes = null;
 304                         object[] flatLists = null;
 305                         Fixup fixup = null;
 306                         int ind = 0;
 307                         int maxInd;
 308
 309                         if (readByOrder) {
 310                                 if (map.ElementMembers != null) maxInd = map.ElementMembers.Count;
 311                                 else maxInd = 0;
 312                         }
 313                         else
 314                                 maxInd = int.MaxValue;
 315
 316                         if (map.FlatLists != null)
 317                         {
 318                                 indexes = new int[map.FlatLists.Count];
 319                                 flatLists = new object[map.FlatLists.Count];
 320                                 foreach (XmlTypeMapMemberExpandable mem in map.FlatLists)
 321                                         if (IsReadOnly (mem, mem.TypeData, ob, isValueList))
 322                                                 flatLists [mem.FlatArrayIndex] = mem.GetValue (ob);
 323                                         else
 324                                                 flatLists [mem.FlatArrayIndex] = InitializeList (mem.TypeData);
 325                         }
 326
 327                         if (_format == SerializationFormat.Encoded && map.ElementMembers != null)
 328                         {
 329                                 FixupCallbackInfo info = new FixupCallbackInfo (this, map, isValueList);
 330                                 fixup = new Fixup(ob, new XmlSerializationFixupCallback(info.FixupMembers), map.ElementMembers.Count);
 331                                 AddFixup (fixup);
 332                         }
 333
 334                         while (Reader.NodeType != System.Xml.XmlNodeType.EndElement && (ind < maxInd))
 335                         {
 336                                 if (Reader.NodeType == System.Xml.XmlNodeType.Element)
 337                                 {
 338                                         XmlTypeMapElementInfo info;
 339
 340                                         if (readByOrder) {
 341                                                 info = map.GetElement (ind++);
 342                                         }
 343                                         else if (hasAnyReturnMember) {
 344                                                 info = (XmlTypeMapElementInfo) ((XmlTypeMapMemberElement)map.ReturnMember).ElementInfo[0];
 345                                                 hasAnyReturnMember = false;
 346                                         }
 347                                         else
 348                                                 info = map.GetElement (Reader.LocalName, Reader.NamespaceURI);
 349
 350                                         if (info != null && !readFlag[info.Member.Index] )
 351                                         {
 352                                                 if (info.Member.GetType() == typeof (XmlTypeMapMemberList))
 353                                                 {
 354                                                         if (_format == SerializationFormat.Encoded && info.MultiReferenceType)
 355                                                         {
 356                                                                 object list = ReadReferencingElement (out fixup.Ids[info.Member.Index]);
 357                                                                 if (fixup.Ids[info.Member.Index] == null)       // Already read
 358                                                                 {
 359                                                                         if (IsReadOnly (info.Member, info.TypeData, ob, isValueList)) throw CreateReadOnlyCollectionException (info.TypeData.FullTypeName);
 360                                                                         else SetMemberValue (info.Member, ob, list, isValueList);
 361                                                                 }
 362                                                                 else if (!info.MappedType.TypeData.Type.IsArray)
 363                                                                 {
 364                                                                         if (IsReadOnly (info.Member, info.TypeData, ob, isValueList))
 365                                                                                 list = GetMemberValue (info.Member, ob, isValueList);
 366                                                                         else {
 367                                                                                 list = CreateList (info.MappedType.TypeData.Type);
 368                                                                                 SetMemberValue (info.Member, ob, list, isValueList);
 369                                                                         }
 370                                                                         AddFixup (new CollectionFixup (list, new XmlSerializationCollectionFixupCallback (FillList), fixup.Ids[info.Member.Index]));
 371                                                                         fixup.Ids[info.Member.Index] = null;    // The member already has the value, no further fix needed.
 372                                                                 }
 373                                                         }
 374                                                         else
 375                                                         {
 376                                                                 if (IsReadOnly (info.Member, info.TypeData, ob, isValueList)) ReadListElement (info.MappedType, info.IsNullable, GetMemberValue (info.Member, ob, isValueList), false);
 377                                                                 else SetMemberValue (info.Member, ob, ReadListElement (info.MappedType, info.IsNullable, null, true), isValueList);
 378                                                         }
 379                                                         readFlag[info.Member.Index] = true;
 380                                                 }
 381                                                 else if (info.Member.GetType() == typeof (XmlTypeMapMemberFlatList))
 382                                                 {
 383                                                         XmlTypeMapMemberFlatList mem = (XmlTypeMapMemberFlatList)info.Member;
 384                                                         AddListValue (mem.TypeData, ref flatLists[mem.FlatArrayIndex], indexes[mem.FlatArrayIndex]++, ReadObjectElement (info), !IsReadOnly (info.Member, info.TypeData, ob, isValueList));
 385                                                 }
 386                                                 else if (info.Member.GetType() == typeof (XmlTypeMapMemberAnyElement))
 387                                                 {
 388                                                         XmlTypeMapMemberAnyElement mem = (XmlTypeMapMemberAnyElement)info.Member;
 389                                                         if (mem.TypeData.IsListType) AddListValue (mem.TypeData, ref flatLists[mem.FlatArrayIndex], indexes[mem.FlatArrayIndex]++, ReadXmlNode (mem.TypeData.ListItemTypeData, false), true);
 390                                                         else SetMemberValue (mem, ob, ReadXmlNode (mem.TypeData, false), isValueList);
 391                                                 }
 392                                                 else if (info.Member.GetType() == typeof(XmlTypeMapMemberElement))
 393                                                 {
 394                                                         object val;
 395                                                         readFlag[info.Member.Index] = true;
 396                                                         if (_format == SerializationFormat.Encoded)
 397                                                         {
 398                                                                 if (info.Member.TypeData.SchemaType != SchemaTypes.Primitive)
 399                                                                         val = ReadReferencingElement (out fixup.Ids[info.Member.Index]);
 400                                                                 else
 401                                                                         val = ReadReferencingElement (info.Member.TypeData.XmlType, System.Xml.Schema.XmlSchema.Namespace, out fixup.Ids[info.Member.Index]);
 402
 403                                                                 if (info.MultiReferenceType) {
 404                                                                         if (fixup.Ids[info.Member.Index] == null)       // already read
 405                                                                                 SetMemberValue (info.Member, ob, val, isValueList);
 406                                                                 }
 407                                                                 else if (val != null)
 408                                                                         SetMemberValue (info.Member, ob, val, isValueList);
 409                                                         }
 410                                                         else {
 411                                                                 SetMemberValue (info.Member, ob, ReadObjectElement (info), isValueList);
 412                                                                 if (info.ChoiceValue != null) {
 413                                                                         XmlTypeMapMemberElement imem = (XmlTypeMapMemberElement) info.Member;
 414                                                                         imem.SetChoice (ob, info.ChoiceValue);
 415                                                                 }
 416                                                         }
 417                                                 }
 418                                                 else
 419                                                         throw new InvalidOperationException ("Unknown member type");
 420                                         }
 421                                         else if (map.DefaultAnyElementMember != null)
 422                                         {
 423                                                 XmlTypeMapMemberAnyElement mem = map.DefaultAnyElementMember;
 424                                                 if (mem.TypeData.IsListType) AddListValue (mem.TypeData, ref flatLists[mem.FlatArrayIndex], indexes[mem.FlatArrayIndex]++, ReadXmlNode (mem.TypeData.ListItemTypeData, false), true);
 425                                                 else SetMemberValue (mem, ob, ReadXmlNode (mem.TypeData, false), isValueList);
 426                                         }
 427                                         else
 428                                                 ProcessUnknownElement(ob);
 429                                 }
 430                                 else if (Reader.NodeType == System.Xml.XmlNodeType.Text && map.XmlTextCollector != null)
 431                                 {
 432                                         if (map.XmlTextCollector is XmlTypeMapMemberExpandable)
 433                                         {
 434                                                 XmlTypeMapMemberExpandable mem = (XmlTypeMapMemberExpandable)map.XmlTextCollector;
 435                                                 XmlTypeMapMemberFlatList flatl = mem as XmlTypeMapMemberFlatList;
 436                                                 TypeData itype = (flatl == null) ? mem.TypeData.ListItemTypeData : flatl.ListMap.FindTextElement().TypeData;
 437
 438                                                 object val = (itype.Type == typeof (string)) ? (object) Reader.ReadString() : (object) ReadXmlNode (itype, false);
 439                                                 AddListValue (mem.TypeData, ref flatLists[mem.FlatArrayIndex], indexes[mem.FlatArrayIndex]++, val, true);
 440                                         }
 441                                         else
 442                                         {
 443                                                 XmlTypeMapMemberElement mem = (XmlTypeMapMemberElement) map.XmlTextCollector;
 444                                                 XmlTypeMapElementInfo info = (XmlTypeMapElementInfo) mem.ElementInfo [0];
 445                                                 if (info.TypeData.Type == typeof (string))
 446                                                         SetMemberValue (mem, ob, ReadString ((string) GetMemberValue (mem, ob, isValueList)), isValueList);
 447                                                 else
 448                                                         SetMemberValue (mem, ob, GetValueFromXmlString (Reader.ReadString(), info.TypeData, info.MappedType), isValueList);
 449                                         }
 450                                 }
 451                                 else
 452                                         UnknownNode(ob);
 453
 454                                 Reader.MoveToContent();
 455                         }
 456
 457                         if (flatLists != null)
 458                         {
 459                                 foreach (XmlTypeMapMemberExpandable mem in map.FlatLists)
 460                                 {
 461                                         Object list = flatLists[mem.FlatArrayIndex];
 462                                         if (mem.TypeData.Type.IsArray)
 463                                                 list = ShrinkArray ((Array)list, indexes[mem.FlatArrayIndex], mem.TypeData.Type.GetElementType(), true);
 464                                         if (!IsReadOnly (mem, mem.TypeData, ob, isValueList))
 465                                                 SetMemberValue (mem, ob, list, isValueList);
 466                                 }
 467                         }
 468                         SetListMembersDefaults (map, ob, isValueList);
 469                 }
 470
 471                 void SetListMembersDefaults (ClassMap map, object ob, bool isValueList)
 472                 {
 473                         if (map.ListMembers != null)
 474                         {
 475                                 ArrayList members = map.ListMembers;
 476                                 for (int n=0; n<members.Count; n++) {
 477                                         XmlTypeMapMember mem = (XmlTypeMapMember) members[n];
 478                                         if (IsReadOnly (mem, mem.TypeData, ob, isValueList))
 479                                                 continue;
 480                                         if (GetMemberValue (mem, ob, isValueList) == null)
 481                                                 SetMemberValue (mem, ob, InitializeList (mem.TypeData), isValueList);
 482                                 }
 483                         }
 484                 }
 485
 486                 internal void FixupMembers (ClassMap map, object obfixup, bool isValueList)
 487                 {
 488                         Fixup fixup = (Fixup)obfixup;
 489                         ICollection members = map.ElementMembers;
 490                         string[] ids = fixup.Ids;
 491                         foreach (XmlTypeMapMember member in members)
 492                         {
 493                                 if (ids[member.Index] != null)
 494                                         SetMemberValue (member, fixup.Source, GetTarget(ids[member.Index]), isValueList);
 495                         }
 496                 }
 497
 498                 protected virtual void ProcessUnknownAttribute (object target)
 499                 {
 500                         UnknownNode (target);
 501                 }
 502
 503                 protected virtual void ProcessUnknownElement (object target)
 504                 {
 505                         UnknownNode (target);
 506                 }
 507
 508                 bool IsReadOnly (XmlTypeMapMember member, TypeData memType, object ob, bool isValueList)
 509                 {
 510                         if (isValueList) return !memType.HasPublicConstructor;
 511                         else return member.IsReadOnly (ob.GetType()) || !memType.HasPublicConstructor;
 512                 }
 513
 514                 void SetMemberValue (XmlTypeMapMember member, object ob, object value, bool isValueList)
 515                 {
 516                         if (isValueList) ((object[])ob)[member.Index] = value;
 517                         else {
 518                                 member.SetValue (ob, value);
 519                                 if (member.IsOptionalValueType)
 520                                         member.SetValueSpecified (ob, true);
 521                         }
 522                 }
 523
 524                 void SetMemberValueFromAttr (XmlTypeMapMember member, object ob, object value, bool isValueList)
 525                 {
 526                         // Enumeration values specified in custom attributes are stored as integer
 527                         // values if the custom attribute property is of type object. So, it is
 528                         // necessary to convert to the enum type before asigning the value to the field.
 529
 530                         if (member.TypeData.Type.IsEnum)
 531                                 value = Enum.ToObject (member.TypeData.Type, value);
 532                         SetMemberValue (member, ob, value, isValueList);
 533                 }
 534
 535                 object GetMemberValue (XmlTypeMapMember member, object ob, bool isValueList)
 536                 {
 537                         if (isValueList) return ((object[])ob)[member.Index];
 538                         else return member.GetValue (ob);
 539                 }
 540
 541                 object ReadObjectElement (XmlTypeMapElementInfo elem)
 542                 {
 543                         switch (elem.TypeData.SchemaType)
 544                         {
 545                                 case SchemaTypes.XmlNode:
 546                                         return ReadXmlNode (elem.TypeData, true);
 547
 548                                 case SchemaTypes.Primitive:
 549                                 case SchemaTypes.Enum:
 550                                         return ReadPrimitiveValue (elem);
 551
 552                                 case SchemaTypes.Array:
 553                                         return ReadListElement (elem.MappedType, elem.IsNullable, null, true);
 554
 555                                 case SchemaTypes.Class:
 556                                         return ReadObject (elem.MappedType, elem.IsNullable, true);
 557
 558                                 case SchemaTypes.XmlSerializable:
 559                                         object ob = Activator.CreateInstance (elem.TypeData.Type);
 560                                         return ReadSerializable ((IXmlSerializable)ob);
 561
 562                                 default:
 563                                         throw new NotSupportedException ("Invalid value type");
 564                         }
 565                 }
 566
 567                 object ReadPrimitiveValue (XmlTypeMapElementInfo elem)
 568                 {
 569                         if (elem.TypeData.Type == typeof (XmlQualifiedName)) {
 570                                 if (elem.IsNullable) return ReadNullableQualifiedName ();
 571                                 else return ReadElementQualifiedName ();
 572                         }
 573                         else if (elem.IsNullable)
 574                                 return GetValueFromXmlString (ReadNullableString (), elem.TypeData, elem.MappedType);
 575                         else
 576                                 return GetValueFromXmlString (Reader.ReadElementString (), elem.TypeData, elem.MappedType);
 577                 }
 578
 579                 object GetValueFromXmlString (string value, TypeData typeData, XmlTypeMapping typeMap)
 580                 {
 581                         if (typeData.SchemaType == SchemaTypes.Array)
 582                                 return ReadListString (typeMap, value);
 583                         else if (typeData.SchemaType == SchemaTypes.Enum)
 584                                 return GetEnumValue (typeMap, value);
 585                         else if (typeData.Type == typeof (XmlQualifiedName))
 586                                 return ToXmlQualifiedName (value);
 587                         else
 588                                 return XmlCustomFormatter.FromXmlString (typeData, value);
 589                 }
 590
 591                 object ReadListElement (XmlTypeMapping typeMap, bool isNullable, object list, bool canCreateInstance)
 592                 {
 593                         Type listType = typeMap.TypeData.Type;
 594                         ListMap listMap = (ListMap)typeMap.ObjectMap;
 595
 596                         if (ReadNull()) return null;
 597
 598                         if (list == null) {
 599                                 if (canCreateInstance && typeMap.TypeData.HasPublicConstructor) list = CreateList (listType);
 600                                 else throw CreateReadOnlyCollectionException (typeMap.TypeFullName);
 601                         }
 602
 603                         if (Reader.IsEmptyElement) {
 604                                 Reader.Skip();
 605                                 if (listType.IsArray)
 606                                         list = ShrinkArray ((Array)list, 0, listType.GetElementType(), isNullable);
 607                                 return list;
 608                         }
 609
 610                         int index = 0;
 611                         Reader.ReadStartElement();
 612                         Reader.MoveToContent();
 613
 614                         while (Reader.NodeType != System.Xml.XmlNodeType.EndElement)
 615                         {
 616                                 if (Reader.NodeType == System.Xml.XmlNodeType.Element)
 617                                 {
 618                                         XmlTypeMapElementInfo elemInfo = listMap.FindElement (Reader.LocalName, Reader.NamespaceURI);
 619                                         if (elemInfo != null)
 620                                                 AddListValue (typeMap.TypeData, ref list, index++, ReadObjectElement (elemInfo), false);
 621                                         else
 622                                                 UnknownNode(null);
 623                                 }
 624                                 else
 625                                         UnknownNode(null);
 626
 627                                 Reader.MoveToContent();
 628                         }
 629                         ReadEndElement();
 630
 631                         if (listType.IsArray)
 632                                 list = ShrinkArray ((Array)list, index, listType.GetElementType(), isNullable);
 633
 634                         return list;
 635                 }
 636
 637                 object ReadListString (XmlTypeMapping typeMap, string values)
 638                 {
 639                         Type listType = typeMap.TypeData.Type;
 640                         ListMap listMap = (ListMap)typeMap.ObjectMap;
 641                         values = values.Trim ();
 642
 643                         if (values == string.Empty)
 644                         {
 645                                 return Array.CreateInstance (listType.GetElementType(), 0);
 646                         }
 647
 648                         string[] valueArray = values.Split (' ');
 649                         Array list = Array.CreateInstance (listType.GetElementType(), valueArray.Length);
 650
 651                         XmlTypeMapElementInfo info = (XmlTypeMapElementInfo)listMap.ItemInfo[0];
 652
 653                         for (int index = 0; index < valueArray.Length; index++)
 654                                 list.SetValue (GetValueFromXmlString (valueArray[index], info.TypeData, info.MappedType), index);
 655
 656                         return list;
 657                 }
 658
 659                 void AddListValue (TypeData listType, ref object list, int index, object value, bool canCreateInstance)
 660                 {
 661                         Type type = listType.Type;
 662                         if (type.IsArray)
 663                         {
 664                                 list = EnsureArrayIndex ((Array)list, index, type.GetElementType());
 665                                 ((Array)list).SetValue (value, index);
 666                         }
 667                         else    // Must be IEnumerable
 668                         {
 669                                 if (list == null) {
 670                                         if (canCreateInstance) list = Activator.CreateInstance (type);
 671                                         else throw CreateReadOnlyCollectionException (type.FullName);
 672                                 }
 673
 674                                 MethodInfo mi = type.GetMethod ("Add", new Type[] {listType.ListItemType} );
 675                                 mi.Invoke (list, new object[] { value });
 676                         }
 677                 }
 678
 679                 object CreateList (Type listType)
 680                 {
 681                         if (listType.IsArray)
 682                                 return EnsureArrayIndex (null, 0, listType.GetElementType());
 683                         else
 684                                 return Activator.CreateInstance (listType);
 685                 }
 686
 687                 object InitializeList (TypeData listType)
 688                 {
 689                         if (listType.Type.IsArray)
 690                                 return null;
 691                         else
 692                                 return Activator.CreateInstance (listType.Type);
 693                 }
 694
 695                 void FillList (object list, object items)
 696                 {
 697                         CopyEnumerableList (items, list);
 698                 }
 699
 700                 void CopyEnumerableList (object source, object dest)
 701                 {
 702                         if (dest == null) throw CreateReadOnlyCollectionException (source.GetType().FullName);
 703
 704                         object[] param = new object[1];
 705                         MethodInfo mi = dest.GetType().GetMethod ("Add");
 706                         foreach (object ob in (IEnumerable)source)
 707                         {
 708                                 param[0] = ob;
 709                                 mi.Invoke (dest, param);
 710                         }
 711                 }
 712
 713                 object ReadXmlNodeElement (XmlTypeMapping typeMap, bool isNullable)
 714                 {
 715                         return ReadXmlNode (typeMap.TypeData, false);
 716                 }
 717
 718                 object ReadXmlNode (TypeData type, bool wrapped)
 719                 {
 720                         if (type.Type == typeof (XmlDocument))
 721                                 return ReadXmlDocument (wrapped);
 722                         else
 723                                 return ReadXmlNode (wrapped);
 724                 }
 725
 726                 object ReadPrimitiveElement (XmlTypeMapping typeMap, bool isNullable)
 727                 {
 728                         XmlQualifiedName t = GetXsiType();
 729                         if (t == null) t = new XmlQualifiedName (typeMap.XmlType, typeMap.Namespace);
 730                         return ReadTypedPrimitive (t);
 731                 }
 732
 733                 object ReadEnumElement (XmlTypeMapping typeMap, bool isNullable)
 734                 {
 735                         Reader.ReadStartElement ();
 736                         object o = GetEnumValue (typeMap, Reader.ReadString());
 737                         Reader.ReadEndElement ();
 738                         return o;
 739                 }
 740
 741                 object GetEnumValue (XmlTypeMapping typeMap, string val)
 742                 {
 743                         EnumMap map = (EnumMap) typeMap.ObjectMap;
 744                         string ev = map.GetEnumName (val);
 745                         if (ev == null) throw CreateUnknownConstantException (val, typeMap.TypeData.Type);
 746                         return Enum.Parse (typeMap.TypeData.Type, ev);
 747                 }
 748
 749                 object ReadXmlSerializableElement (XmlTypeMapping typeMap, bool isNullable)
 750                 {
 751                         Reader.MoveToContent ();
 752                         if (Reader.NodeType == XmlNodeType.Element)
 753                         {
 754                                 if (Reader.LocalName == typeMap.ElementName && Reader.NamespaceURI == typeMap.Namespace)
 755                                 {
 756                                         object ob = Activator.CreateInstance (typeMap.TypeData.Type);
 757                                         return ReadSerializable ((IXmlSerializable)ob);
 758                                 }
 759                                 else
 760                                         throw CreateUnknownNodeException ();
 761                         }
 762                         else
 763                         {
 764                                 UnknownNode (null);
 765                                 return null;
 766                         }
 767                 }
 768
 769                 class FixupCallbackInfo
 770                 {
 771                         XmlSerializationReaderInterpreter _sri;
 772                         ClassMap _map;
 773                         bool _isValueList;
 774
 775                         public FixupCallbackInfo (XmlSerializationReaderInterpreter sri, ClassMap map, bool isValueList)
 776                         {
 777                                 _sri = sri;
 778                                 _map = map;
 779                                 _isValueList = isValueList;
 780                         }
 781
 782                         public void FixupMembers (object fixup)
 783                         {
 784                                 _sri.FixupMembers (_map, fixup, _isValueList);
 785                         }
 786                 }
 787
 788                 class ReaderCallbackInfo
 789                 {
 790                         XmlSerializationReaderInterpreter _sri;
 791                         XmlTypeMapping _typeMap;
 792
 793                         public ReaderCallbackInfo (XmlSerializationReaderInterpreter sri, XmlTypeMapping typeMap)
 794                         {
 795                                 _sri = sri;
 796                                 _typeMap = typeMap;
 797                         }
 798
 799                         internal object ReadObject ()
 800                         {
 801                                 return _sri.ReadObject (_typeMap, true, true);
 802                         }
 803                 }
 804         }
 805 }