4 // Lluis Sanchez Gual (lluis@ideary.com)
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6 // (C) 2003 Lluis Sanchez Gual
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9 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
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11 // Permission is hereby granted, free of charge, to any person obtaining
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12 // a copy of this software and associated documentation files (the
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13 // "Software"), to deal in the Software without restriction, including
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14 // without limitation the rights to use, copy, modify, merge, publish,
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15 // distribute, sublicense, and/or sell copies of the Software, and to
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16 // permit persons to whom the Software is furnished to do so, subject to
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17 // the following conditions:
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19 // The above copyright notice and this permission notice shall be
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20 // included in all copies or substantial portions of the Software.
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22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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33 using System.Collections;
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34 using System.Runtime.Serialization;
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35 using System.Runtime.Remoting.Messaging;
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36 using System.Reflection;
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37 using System.Globalization;
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39 namespace System.Runtime.Serialization.Formatters.Binary
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41 abstract class TypeMetadata
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43 public string TypeAssemblyName;
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44 public string InstanceTypeName;
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46 public abstract void WriteAssemblies (ObjectWriter ow, BinaryWriter writer);
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47 public abstract void WriteTypeData (ObjectWriter ow, BinaryWriter writer, bool writeTypes);
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48 public abstract void WriteObjectData (ObjectWriter ow, BinaryWriter writer, object data);
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50 public virtual bool IsCompatible (TypeMetadata other)
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55 public abstract bool RequiresTypes { get; }
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58 abstract class ClrTypeMetadata: TypeMetadata
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60 public Type InstanceType;
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62 public ClrTypeMetadata (Type instanceType)
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64 InstanceType = instanceType;
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65 InstanceTypeName = instanceType.FullName;
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66 TypeAssemblyName = instanceType.Assembly.FullName;
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69 public override bool RequiresTypes {
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70 get { return false; }
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74 class SerializableTypeMetadata: TypeMetadata
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79 public SerializableTypeMetadata (Type itype, SerializationInfo info)
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81 types = new Type [info.MemberCount];
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82 names = new string [info.MemberCount];
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84 SerializationInfoEnumerator e = info.GetEnumerator ();
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87 while (e.MoveNext ())
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89 types[n] = e.ObjectType;
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94 TypeAssemblyName = info.AssemblyName;
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95 InstanceTypeName = info.FullTypeName;
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98 public override bool IsCompatible (TypeMetadata other)
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100 if (!(other is SerializableTypeMetadata)) return false;
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102 SerializableTypeMetadata tm = (SerializableTypeMetadata)other;
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103 if (types.Length != tm.types.Length) return false;
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104 if (TypeAssemblyName != tm.TypeAssemblyName) return false;
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105 if (InstanceTypeName != tm.InstanceTypeName) return false;
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106 for (int n=0; n<types.Length; n++)
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108 if (types[n] != tm.types[n]) return false;
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109 if (names[n] != tm.names[n]) return false;
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114 public override void WriteAssemblies (ObjectWriter ow, BinaryWriter writer)
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116 foreach (Type mtype in types)
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119 while (type.IsArray)
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120 type = type.GetElementType();
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122 ow.WriteAssembly (writer, type.Assembly);
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126 public override void WriteTypeData (ObjectWriter ow, BinaryWriter writer, bool writeTypes)
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128 writer.Write (types.Length);
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131 foreach (string name in names)
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132 writer.Write (name);
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135 foreach (Type type in types)
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136 ObjectWriter.WriteTypeCode (writer, type);
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138 // Type specs of fields
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139 foreach (Type type in types)
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140 ow.WriteTypeSpec (writer, type);
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143 public override void WriteObjectData (ObjectWriter ow, BinaryWriter writer, object data)
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145 SerializationInfo info = (SerializationInfo) data;
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146 SerializationInfoEnumerator e = info.GetEnumerator ();
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148 while (e.MoveNext ())
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149 ow.WriteValue (writer, e.ObjectType, e.Value);
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152 public override bool RequiresTypes {
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153 get { return true; }
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157 class MemberTypeMetadata: ClrTypeMetadata
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159 MemberInfo[] members;
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161 public MemberTypeMetadata (Type type, StreamingContext context): base (type)
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163 members = FormatterServices.GetSerializableMembers (type, context);
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166 public override void WriteAssemblies (ObjectWriter ow, BinaryWriter writer)
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168 foreach (FieldInfo field in members)
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170 Type type = field.FieldType;
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171 while (type.IsArray)
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172 type = type.GetElementType();
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174 ow.WriteAssembly (writer, type.Assembly);
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178 public override void WriteTypeData (ObjectWriter ow, BinaryWriter writer, bool writeTypes)
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180 writer.Write (members.Length);
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183 foreach (FieldInfo field in members)
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184 writer.Write (field.Name);
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188 foreach (FieldInfo field in members)
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189 ObjectWriter.WriteTypeCode (writer, field.FieldType);
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191 // Type specs of fields
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192 foreach (FieldInfo field in members)
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193 ow.WriteTypeSpec (writer, field.FieldType);
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197 public override void WriteObjectData (ObjectWriter ow, BinaryWriter writer, object data)
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199 object[] values = FormatterServices.GetObjectData (data, members);
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200 for (int n=0; n<values.Length; n++)
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201 ow.WriteValue (writer, ((FieldInfo)members[n]).FieldType, values[n]);
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205 internal class ObjectWriter
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207 ObjectIDGenerator _idGenerator = new ObjectIDGenerator();
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208 Hashtable _cachedMetadata = new Hashtable();
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209 Queue _pendingObjects = new Queue();
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210 Hashtable _assemblyCache = new Hashtable();
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212 // Type metadata that can be shared with all serializers
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213 static Hashtable _cachedTypes = new Hashtable();
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215 internal static Assembly CorlibAssembly = typeof(string).Assembly;
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216 internal static string CorlibAssemblyName = typeof(string).Assembly.FullName;
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218 ISurrogateSelector _surrogateSelector;
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219 StreamingContext _context;
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220 FormatterAssemblyStyle _assemblyFormat;
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221 FormatterTypeStyle _typeFormat;
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222 byte[] arrayBuffer;
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223 int ArrayBufferLength = 4096;
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225 SerializationObjectManager _manager;
228 class MetadataReference
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230 public TypeMetadata Metadata;
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231 public long ObjectID;
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233 public MetadataReference (TypeMetadata metadata, long id)
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235 Metadata = metadata;
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240 public ObjectWriter (ISurrogateSelector surrogateSelector, StreamingContext context, FormatterAssemblyStyle assemblyFormat, FormatterTypeStyle typeFormat)
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242 _surrogateSelector = surrogateSelector;
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243 _context = context;
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244 _assemblyFormat = assemblyFormat;
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245 _typeFormat = typeFormat;
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247 _manager = new SerializationObjectManager (context);
251 public void WriteObjectGraph (BinaryWriter writer, object obj, Header[] headers)
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253 _pendingObjects.Clear();
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254 if (headers != null) QueueObject (headers);
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256 WriteQueuedObjects (writer);
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257 WriteSerializationEnd (writer);
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259 _manager.RaiseOnSerializedEvent ();
263 public void QueueObject (object obj)
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265 _pendingObjects.Enqueue (obj);
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268 public void WriteQueuedObjects (BinaryWriter writer)
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270 while (_pendingObjects.Count > 0)
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271 WriteObjectInstance (writer, _pendingObjects.Dequeue(), false);
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274 public void WriteObjectInstance (BinaryWriter writer, object obj, bool isValueObject)
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279 // If the object is a value type (not boxed) then there is no need
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280 // to register it in the id generator, because it won't have other
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281 // references to it
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283 if (isValueObject) id = _idGenerator.NextId;
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284 else id = _idGenerator.GetId (obj, out firstTime);
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286 if (obj is string) {
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287 WriteString (writer, id, (string)obj);
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289 else if (obj is Array) {
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290 WriteArray (writer, id, (Array)obj);
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293 WriteObject (writer, id, obj);
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296 public static void WriteSerializationEnd (BinaryWriter writer)
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298 writer.Write ((byte) BinaryElement.End);
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301 private void WriteObject (BinaryWriter writer, long id, object obj)
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304 TypeMetadata metadata;
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306 GetObjectData (obj, out metadata, out data);
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307 MetadataReference metadataReference = (MetadataReference)_cachedMetadata [metadata.InstanceTypeName];
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309 if (metadataReference != null && metadata.IsCompatible (metadataReference.Metadata))
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311 // An object of the same type has already been serialized
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312 // It is not necessary to write again type metadata
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314 writer.Write ((byte) BinaryElement.RefTypeObject);
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315 writer.Write ((int)id);
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317 writer.Write ((int)metadataReference.ObjectID);
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318 metadata.WriteObjectData (this, writer, data);
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322 if (metadataReference == null)
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324 metadataReference = new MetadataReference (metadata, id);
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325 _cachedMetadata [metadata.InstanceTypeName] = metadataReference;
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328 bool writeTypes = metadata.RequiresTypes || _typeFormat == FormatterTypeStyle.TypesAlways;
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330 BinaryElement objectTag;
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333 if (metadata.TypeAssemblyName == CorlibAssemblyName)
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336 objectTag = writeTypes ? BinaryElement.RuntimeObject : BinaryElement.UntypedRuntimeObject;
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341 objectTag = writeTypes ? BinaryElement.ExternalObject : BinaryElement.UntypedExternalObject;
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342 assemblyId = WriteAssemblyName (writer, metadata.TypeAssemblyName);
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345 // Registers the assemblies needed for each field
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346 // If there are assemblies that where not registered before this object,
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349 metadata.WriteAssemblies (this, writer);
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351 // Writes the object
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353 writer.Write ((byte) objectTag);
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354 writer.Write ((int)id);
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355 writer.Write (metadata.InstanceTypeName);
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357 metadata.WriteTypeData (this, writer, writeTypes);
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358 if (assemblyId != -1) writer.Write (assemblyId);
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360 metadata.WriteObjectData (this, writer, data);
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363 private void GetObjectData (object obj, out TypeMetadata metadata, out object data)
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365 Type instanceType = obj.GetType();
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367 // Check if the formatter has a surrogate selector, if it does,
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368 // check if the surrogate selector handles objects of the given type.
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370 if (_surrogateSelector != null)
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372 ISurrogateSelector selector;
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373 ISerializationSurrogate surrogate = _surrogateSelector.GetSurrogate (instanceType, _context, out selector);
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374 if (surrogate != null)
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376 SerializationInfo info = new SerializationInfo (instanceType, new FormatterConverter ());
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377 surrogate.GetObjectData (obj, info, _context);
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378 metadata = new SerializableTypeMetadata (instanceType, info);
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384 // Check if the object is marked with the Serializable attribute
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386 BinaryCommon.CheckSerializable (instanceType, _surrogateSelector, _context);
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389 _manager.RegisterObject (obj);
392 ISerializable ser = obj as ISerializable;
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396 SerializationInfo info = new SerializationInfo (instanceType, new FormatterConverter ());
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397 ser.GetObjectData (info, _context);
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398 metadata = new SerializableTypeMetadata (instanceType, info);
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404 if (_context.Context != null)
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406 // Don't cache metadata info when the Context property is not null sice
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407 // we can't control the number of possible contexts in this case
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408 metadata = new MemberTypeMetadata (instanceType, _context);
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412 Hashtable typesTable;
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413 bool isNew = false;
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414 lock (_cachedTypes) {
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415 typesTable = (Hashtable) _cachedTypes [_context.State];
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416 if (typesTable == null) {
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417 typesTable = new Hashtable ();
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418 _cachedTypes [_context.State] = typesTable;
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424 lock (typesTable) {
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426 metadata = (TypeMetadata) typesTable [instanceType];
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429 if (metadata == null) {
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430 metadata = CreateMemberTypeMetadata (instanceType);
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433 typesTable [instanceType] = metadata;
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438 TypeMetadata CreateMemberTypeMetadata (Type type)
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440 if (!BinaryCommon.UseReflectionSerialization) {
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441 Type metaType = CodeGenerator.GenerateMetadataType (type, _context);
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442 return (TypeMetadata) Activator.CreateInstance (metaType);
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445 return new MemberTypeMetadata (type, _context);
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448 private void WriteArray (BinaryWriter writer, long id, Array array)
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450 // There are 4 ways of serializing arrays:
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451 // The element GenericArray (7) can be used for all arrays.
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452 // The element ArrayOfPrimitiveType (15) can be used for single-dimensional
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453 // arrays of primitive types
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454 // The element ArrayOfObject (16) can be used for single-dimensional Object arrays
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455 // The element ArrayOfString (17) can be used for single-dimensional string arrays
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457 Type elementType = array.GetType().GetElementType();
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459 if (elementType == typeof (object) && array.Rank == 1) {
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460 WriteObjectArray (writer, id, array);
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462 else if (elementType == typeof (string) && array.Rank == 1) {
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463 WriteStringArray (writer, id, array);
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465 else if (BinaryCommon.IsPrimitive(elementType) && array.Rank == 1) {
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466 WritePrimitiveTypeArray (writer, id, array);
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469 WriteGenericArray (writer, id, array);
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472 private void WriteGenericArray (BinaryWriter writer, long id, Array array)
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474 Type elementType = array.GetType().GetElementType();
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476 // Registers and writes the assembly of the array element type if needed
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478 if (!elementType.IsArray)
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479 WriteAssembly (writer, elementType.Assembly);
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481 // Writes the array
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483 writer.Write ((byte) BinaryElement.GenericArray);
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484 writer.Write ((int)id);
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486 // Write the structure of the array
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488 if (elementType.IsArray)
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489 writer.Write ((byte) ArrayStructure.Jagged);
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490 else if (array.Rank == 1)
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491 writer.Write ((byte) ArrayStructure.SingleDimensional);
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493 writer.Write ((byte) ArrayStructure.MultiDimensional);
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495 // Write the number of dimensions and the length
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496 // of each dimension
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498 writer.Write (array.Rank);
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499 for (int n=0; n<array.Rank; n++)
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500 writer.Write (array.GetUpperBound (n) + 1);
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503 WriteTypeCode (writer, elementType);
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504 WriteTypeSpec (writer, elementType);
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506 // Writes the values. For single-dimension array, a special tag is used
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507 // to represent multiple consecutive null values. I don't know why this
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508 // optimization is not used for multidimensional arrays.
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510 if (array.Rank == 1 && !elementType.IsValueType)
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512 WriteSingleDimensionArrayElements (writer, array, elementType);
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516 foreach (object item in array)
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517 WriteValue (writer, elementType, item);
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521 private void WriteObjectArray (BinaryWriter writer, long id, Array array)
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523 writer.Write ((byte) BinaryElement.ArrayOfObject);
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524 writer.Write ((int)id);
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525 writer.Write (array.Length); // Single dimension. Just write the length
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526 WriteSingleDimensionArrayElements (writer, array, typeof (object));
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529 private void WriteStringArray (BinaryWriter writer, long id, Array array)
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531 writer.Write ((byte) BinaryElement.ArrayOfString);
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532 writer.Write ((int)id);
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533 writer.Write (array.Length); // Single dimension. Just write the length
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534 WriteSingleDimensionArrayElements (writer, array, typeof (string));
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537 private void WritePrimitiveTypeArray (BinaryWriter writer, long id, Array array)
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539 writer.Write ((byte) BinaryElement.ArrayOfPrimitiveType);
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540 writer.Write ((int)id);
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541 writer.Write (array.Length); // Single dimension. Just write the length
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543 Type elementType = array.GetType().GetElementType();
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544 WriteTypeSpec (writer, elementType);
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546 switch (Type.GetTypeCode (elementType))
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548 case TypeCode.Boolean:
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549 foreach (bool item in (bool[]) array)
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550 writer.Write (item);
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553 case TypeCode.Byte:
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554 writer.Write ((byte[]) array);
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557 case TypeCode.Char:
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558 writer.Write ((char[]) array);
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561 case TypeCode.DateTime:
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562 foreach (DateTime item in (DateTime[]) array) {
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563 ulong val = (ulong) item.Ticks;
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565 val |= ((ulong) item.Kind) << 62;
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567 writer.Write (val);
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571 case TypeCode.Decimal:
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572 foreach (decimal item in (decimal[]) array)
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573 writer.Write (item);
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576 case TypeCode.Double:
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577 if (array.Length > 2)
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578 BlockWrite (writer, array, 8);
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580 foreach (double item in (double[]) array)
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581 writer.Write (item);
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584 case TypeCode.Int16:
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585 if (array.Length > 2)
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586 BlockWrite (writer, array, 2);
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588 foreach (short item in (short[]) array)
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589 writer.Write (item);
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592 case TypeCode.Int32:
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593 if (array.Length > 2)
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594 BlockWrite (writer, array, 4);
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596 foreach (int item in (int[]) array)
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597 writer.Write (item);
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600 case TypeCode.Int64:
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601 if (array.Length > 2)
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602 BlockWrite (writer, array, 8);
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604 foreach (long item in (long[]) array)
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605 writer.Write (item);
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608 case TypeCode.SByte:
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609 if (array.Length > 2)
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610 BlockWrite (writer, array, 1);
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612 foreach (sbyte item in (sbyte[]) array)
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613 writer.Write (item);
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616 case TypeCode.Single:
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617 if (array.Length > 2)
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618 BlockWrite (writer, array, 4);
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620 foreach (float item in (float[]) array)
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621 writer.Write (item);
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624 case TypeCode.UInt16:
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625 if (array.Length > 2)
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626 BlockWrite (writer, array, 2);
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628 foreach (ushort item in (ushort[]) array)
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629 writer.Write (item);
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632 case TypeCode.UInt32:
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633 if (array.Length > 2)
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634 BlockWrite (writer, array, 4);
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636 foreach (uint item in (uint[]) array)
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637 writer.Write (item);
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640 case TypeCode.UInt64:
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641 if (array.Length > 2)
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642 BlockWrite (writer, array, 8);
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644 foreach (ulong item in (ulong[]) array)
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645 writer.Write (item);
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648 case TypeCode.String:
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649 foreach (string item in (string[]) array)
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650 writer.Write (item);
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654 if (elementType == typeof (TimeSpan)) {
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655 foreach (TimeSpan item in (TimeSpan[]) array)
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656 writer.Write (item.Ticks);
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659 throw new NotSupportedException ("Unsupported primitive type: " + elementType.FullName);
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664 private void BlockWrite (BinaryWriter writer, Array array, int dataSize)
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666 int totalSize = Buffer.ByteLength (array);
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668 if (arrayBuffer == null || (totalSize > arrayBuffer.Length && arrayBuffer.Length != ArrayBufferLength))
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669 arrayBuffer = new byte [totalSize <= ArrayBufferLength ? totalSize : ArrayBufferLength];
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672 while (totalSize > 0) {
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673 int size = totalSize < arrayBuffer.Length ? totalSize : arrayBuffer.Length;
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674 Buffer.BlockCopy (array, pos, arrayBuffer, 0, size);
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676 if (!BitConverter.IsLittleEndian && dataSize > 1)
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677 BinaryCommon.SwapBytes (arrayBuffer, size, dataSize);
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679 writer.Write (arrayBuffer, 0, size);
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685 private void WriteSingleDimensionArrayElements (BinaryWriter writer, Array array, Type elementType)
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688 foreach (object val in array)
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690 if (val != null && numNulls > 0)
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692 WriteNullFiller (writer, numNulls);
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693 WriteValue (writer, elementType, val);
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696 else if (val == null)
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699 WriteValue (writer, elementType, val);
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702 WriteNullFiller (writer, numNulls);
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705 private void WriteNullFiller (BinaryWriter writer, int numNulls)
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707 if (numNulls == 1) {
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708 writer.Write ((byte) BinaryElement.NullValue);
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710 else if (numNulls == 2) {
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711 writer.Write ((byte) BinaryElement.NullValue);
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712 writer.Write ((byte) BinaryElement.NullValue);
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714 else if (numNulls <= byte.MaxValue) {
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715 writer.Write ((byte) BinaryElement.ArrayFiller8b);
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716 writer.Write ((byte) numNulls);
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719 writer.Write ((byte) BinaryElement.ArrayFiller32b);
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720 writer.Write (numNulls);
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724 private void WriteObjectReference (BinaryWriter writer, long id)
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727 writer.Write ((byte) BinaryElement.ObjectReference);
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728 writer.Write ((int)id);
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731 public void WriteValue (BinaryWriter writer, Type valueType, object val)
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735 BinaryCommon.CheckSerializable (valueType, _surrogateSelector, _context);
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736 writer.Write ((byte) BinaryElement.NullValue);
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738 else if (BinaryCommon.IsPrimitive(val.GetType()))
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740 if (!BinaryCommon.IsPrimitive(valueType))
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742 // It is a boxed primitive type value
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743 writer.Write ((byte) BinaryElement.BoxedPrimitiveTypeValue);
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744 WriteTypeSpec (writer, val.GetType());
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746 WritePrimitiveValue (writer, val);
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748 else if (valueType.IsValueType)
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750 // Value types are written embedded in the containing object
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751 WriteObjectInstance (writer, val, true);
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753 else if (val is string)
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755 // Strings are written embedded, unless already registered
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757 long id = _idGenerator.GetId (val, out firstTime);
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759 if (firstTime) WriteObjectInstance (writer, val, false);
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760 else WriteObjectReference (writer, id);
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764 // It is a reference type. Write a forward reference and queue the
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765 // object to the pending object list (unless already written).
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768 long id = _idGenerator.GetId (val, out firstTime);
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770 if (firstTime) _pendingObjects.Enqueue (val);
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771 WriteObjectReference (writer, id);
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775 private void WriteString (BinaryWriter writer, long id, string str)
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777 writer.Write ((byte) BinaryElement.String);
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778 writer.Write ((int)id);
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779 writer.Write (str);
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782 public int WriteAssembly (BinaryWriter writer, Assembly assembly)
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784 return WriteAssemblyName (writer, assembly.FullName);
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787 public int WriteAssemblyName (BinaryWriter writer, string assembly)
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789 if (assembly == ObjectWriter.CorlibAssemblyName) return -1;
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792 int id = RegisterAssembly (assembly, out firstTime);
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793 if (!firstTime) return id;
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795 writer.Write ((byte) BinaryElement.Assembly);
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797 if (_assemblyFormat == FormatterAssemblyStyle.Full)
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798 writer.Write (assembly);
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800 int i = assembly.IndexOf (',');
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801 if (i != -1) assembly = assembly.Substring (0, i);
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802 writer.Write (assembly);
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808 public int GetAssemblyId (Assembly assembly)
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810 return GetAssemblyNameId (assembly.FullName);
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813 public int GetAssemblyNameId (string assembly)
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815 return (int)_assemblyCache[assembly];
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818 private int RegisterAssembly (string assembly, out bool firstTime)
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820 if (_assemblyCache.ContainsKey (assembly))
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823 return (int)_assemblyCache[assembly];
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827 int id = (int)_idGenerator.GetId (0, out firstTime);
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828 _assemblyCache.Add (assembly, id);
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833 public static void WritePrimitiveValue (BinaryWriter writer, object value)
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835 Type type = value.GetType();
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837 switch (Type.GetTypeCode (type))
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839 case TypeCode.Boolean:
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840 writer.Write ((bool)value);
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843 case TypeCode.Byte:
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844 writer.Write ((byte) value);
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847 case TypeCode.Char:
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848 writer.Write ((char) value);
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851 case TypeCode.DateTime:
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852 writer.Write ( ((DateTime)value).Ticks);
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855 case TypeCode.Decimal:
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856 writer.Write (((decimal) value).ToString (CultureInfo.InvariantCulture));
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859 case TypeCode.Double:
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860 writer.Write ((double) value);
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863 case TypeCode.Int16:
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864 writer.Write ((short) value);
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867 case TypeCode.Int32:
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868 writer.Write ((int) value);
\r
871 case TypeCode.Int64:
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872 writer.Write ((long) value);
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875 case TypeCode.SByte:
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876 writer.Write ((sbyte) value);
\r
879 case TypeCode.Single:
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880 writer.Write ((float) value);
\r
883 case TypeCode.UInt16:
\r
884 writer.Write ((ushort) value);
\r
887 case TypeCode.UInt32:
\r
888 writer.Write ((uint) value);
\r
891 case TypeCode.UInt64:
\r
892 writer.Write ((ulong) value);
\r
895 case TypeCode.String:
\r
896 writer.Write ((string) value);
\r
900 if (type == typeof (TimeSpan))
\r
901 writer.Write (((TimeSpan)value).Ticks);
\r
903 throw new NotSupportedException ("Unsupported primitive type: " + value.GetType().FullName);
\r
908 public static void WriteTypeCode (BinaryWriter writer, Type type)
\r
910 writer.Write ((byte) GetTypeTag (type));
\r
913 public static TypeTag GetTypeTag (Type type)
\r
915 if (type == typeof (string)) {
\r
916 return TypeTag.String;
\r
918 else if (BinaryCommon.IsPrimitive (type)) {
\r
919 return TypeTag.PrimitiveType;
\r
921 else if (type == typeof (object)) {
\r
922 return TypeTag.ObjectType;
\r
924 else if (type.IsArray && type.GetArrayRank() == 1 && type.GetElementType() == typeof (object)) {
\r
925 return TypeTag.ArrayOfObject;
\r
927 else if (type.IsArray && type.GetArrayRank() == 1 && type.GetElementType() == typeof (string)){
\r
928 return TypeTag.ArrayOfString;
\r
930 else if (type.IsArray && type.GetArrayRank() == 1 && BinaryCommon.IsPrimitive(type.GetElementType())) {
\r
931 return TypeTag.ArrayOfPrimitiveType;
\r
933 else if (type.Assembly == CorlibAssembly) {
\r
934 return TypeTag.RuntimeType;
\r
937 return TypeTag.GenericType;
\r
940 public void WriteTypeSpec (BinaryWriter writer, Type type)
\r
942 // WARNING Keep in sync with EmitWriteTypeSpec
\r
944 switch (GetTypeTag (type))
\r
946 case TypeTag.PrimitiveType:
\r
947 writer.Write (BinaryCommon.GetTypeCode (type));
\r
950 case TypeTag.RuntimeType:
\r
951 writer.Write (type.FullName);
\r
954 case TypeTag.GenericType:
\r
955 writer.Write (type.FullName);
\r
956 writer.Write ((int)GetAssemblyId (type.Assembly));
\r
959 case TypeTag.ArrayOfPrimitiveType:
\r
960 writer.Write (BinaryCommon.GetTypeCode (type.GetElementType()));
\r
964 // Type spec not needed
\r