Code:
/ FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / clr / src / BCL / System / Text / MLangCodePageEncoding.cs / 1 / MLangCodePageEncoding.cs
// ==++== // // Copyright (c) Microsoft Corporation. All rights reserved. // // ==--== // WARNING: // // This is just an IObjectReference proxy for the former MLang Encodings (V1.1) // We keep the old name now even for the Whidbey V2.0 IObjectReference because it also // works with the Everett V1.1 version. namespace System.Text { using System; using System.Runtime.Serialization; using System.Security.Permissions; /*=================================MLangCodePageEncoding================================== ** This class is here only to deserialize the MLang classes from Everett (V1.1) into ** Appropriate Whidbey (V2.0) objects. We also serialize the Whidbey classes ** using this proxy since we pretty much need one anyway and that solves Whidbey ** to Everett compatibility as well. ==============================================================================*/ [Serializable()] internal sealed class MLangCodePageEncoding : ISerializable, IObjectReference { // Temp stuff [NonSerialized] private int m_codePage; [NonSerialized] private bool m_isReadOnly; [NonSerialized] private bool m_deserializedFromEverett = false; [NonSerialized] private EncoderFallback encoderFallback = null; [NonSerialized] private DecoderFallback decoderFallback = null; // Might need this when GetRealObjecting [NonSerialized] private Encoding realEncoding = null; // Constructor called by serialization. internal MLangCodePageEncoding(SerializationInfo info, StreamingContext context) { // Any info? if (info==null) throw new ArgumentNullException("info"); // All versions have a code page this.m_codePage = (int)info.GetValue("m_codePage", typeof(int)); // See if we have a code page try { // // Try Whidbey V2.0 Fields // this.m_isReadOnly = (bool)info.GetValue("m_isReadOnly", typeof(bool)); this.encoderFallback = (EncoderFallback)info.GetValue("encoderFallback", typeof(EncoderFallback)); this.decoderFallback = (DecoderFallback)info.GetValue("decoderFallback", typeof(DecoderFallback)); } catch (SerializationException) { // // Didn't have Whidbey things, must be Everett // this.m_deserializedFromEverett = true; // May as well be read only this.m_isReadOnly = true; } } // Just get it from GetEncoding public Object GetRealObject(StreamingContext context) { // Get our encoding (Note: This has default fallbacks for readonly and everett cases) this.realEncoding = Encoding.GetEncoding(this.m_codePage); // If its read only then it uses default fallbacks, otherwise pick up the new ones // Otherwise we want to leave the new one read only if (!this.m_deserializedFromEverett && !this.m_isReadOnly) { this.realEncoding = (Encoding)this.realEncoding.Clone(); this.realEncoding.EncoderFallback = this.encoderFallback; this.realEncoding.DecoderFallback = this.decoderFallback; } return this.realEncoding; } // ISerializable implementation [SecurityPermissionAttribute(SecurityAction.LinkDemand, Flags=SecurityPermissionFlag.SerializationFormatter)] void ISerializable.GetObjectData(SerializationInfo info, StreamingContext context) { // We cannot ever call this. BCLDebug.Assert(false, "Didn't expect to make it to MLangCodePageEncoding ISerializable.GetObjectData"); throw new ArgumentException(Environment.GetResourceString("Arg_ExecutionEngineException")); } // Same problem with the Encoder, this only happens with Everett Encoders [Serializable] internal sealed class MLangEncoder : ISerializable, IObjectReference { // Might need this when GetRealObjecting [NonSerialized] private Encoding realEncoding = null; // Constructor called by serialization, have to handle deserializing from Everett internal MLangEncoder(SerializationInfo info, StreamingContext context) { // Any info? if (info==null) throw new ArgumentNullException("info"); this.realEncoding = (Encoding)info.GetValue("m_encoding", typeof(Encoding)); } // Just get it from GetEncoder public Object GetRealObject(StreamingContext context) { return this.realEncoding.GetEncoder(); } // ISerializable implementation, get data for this object [SecurityPermissionAttribute(SecurityAction.LinkDemand, Flags=SecurityPermissionFlag.SerializationFormatter)] void ISerializable.GetObjectData(SerializationInfo info, StreamingContext context) { // We cannot ever call this. BCLDebug.Assert(false, "Didn't expect to make it to MLangCodePageEncoding.MLangEncoder.GetObjectData"); throw new ArgumentException(Environment.GetResourceString("Arg_ExecutionEngineException")); } } // Same problem with the Decoder, this only happens with Everett Decoders [Serializable] internal sealed class MLangDecoder : ISerializable, IObjectReference { // Might need this when GetRealObjecting [NonSerialized] private Encoding realEncoding = null; // Constructor called by serialization, have to handle deserializing from Everett internal MLangDecoder(SerializationInfo info, StreamingContext context) { // Any info? if (info==null) throw new ArgumentNullException("info"); this.realEncoding = (Encoding)info.GetValue("m_encoding", typeof(Encoding)); } // Just get it from GetDecoder public Object GetRealObject(StreamingContext context) { return this.realEncoding.GetDecoder(); } // ISerializable implementation, get data for this object [SecurityPermissionAttribute(SecurityAction.LinkDemand, Flags=SecurityPermissionFlag.SerializationFormatter)] void ISerializable.GetObjectData(SerializationInfo info, StreamingContext context) { // We cannot ever call this. BCLDebug.Assert(false, "Didn't expect to make it to MLangCodePageEncoding.MLangDecoder.GetObjectData"); throw new ArgumentException(Environment.GetResourceString("Arg_ExecutionEngineException")); } } } }
Link Menu

This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- GradientSpreadMethodValidation.cs
- NativeMethods.cs
- PageParserFilter.cs
- FileStream.cs
- TreeNodeCollection.cs
- CompositionAdorner.cs
- DataControlImageButton.cs
- XsltOutput.cs
- BaseDataBoundControl.cs
- DataGridViewRowsAddedEventArgs.cs
- RuntimeWrappedException.cs
- SynchronizedInputAdaptor.cs
- FontDriver.cs
- SystemIcons.cs
- Color.cs
- ExpressionBuilderCollection.cs
- ToolStrip.cs
- InputLanguageSource.cs
- complextypematerializer.cs
- DataRelationPropertyDescriptor.cs
- TypeToken.cs
- RSAProtectedConfigurationProvider.cs
- UserNameSecurityToken.cs
- ConfigurationProperty.cs
- UnsafeNativeMethods.cs
- PropertySet.cs
- Parser.cs
- TableLayoutSettings.cs
- UpdateTracker.cs
- Rect.cs
- SqlDataSourceCommandEventArgs.cs
- DummyDataSource.cs
- GeneratedView.cs
- DataListItem.cs
- DashStyle.cs
- ExpressionConverter.cs
- MimeFormatter.cs
- IpcChannel.cs
- IDictionary.cs
- XdrBuilder.cs
- LookupNode.cs
- BindingGroup.cs
- ConditionCollection.cs
- IteratorFilter.cs
- AuthorizationRule.cs
- ZoomPercentageConverter.cs
- DateTime.cs
- NGCPageContentCollectionSerializerAsync.cs
- TextTreeRootTextBlock.cs
- DependencyPropertyKind.cs
- ReadOnlyDictionary.cs
- EntityConnectionStringBuilderItem.cs
- StringAnimationBase.cs
- BamlResourceContent.cs
- HybridCollection.cs
- ToolStripSettings.cs
- FileLevelControlBuilderAttribute.cs
- TableAdapterManagerNameHandler.cs
- CorrelationManager.cs
- AttributeEmitter.cs
- UserControl.cs
- OleDbConnectionFactory.cs
- FileIOPermission.cs
- XmlSchemaAttributeGroupRef.cs
- SplitterEvent.cs
- NativeMethods.cs
- BrowsableAttribute.cs
- StringAnimationUsingKeyFrames.cs
- TransformedBitmap.cs
- ToolboxSnapDragDropEventArgs.cs
- IImplicitResourceProvider.cs
- EasingKeyFrames.cs
- TrackPointCollection.cs
- TemplateEditingVerb.cs
- ClientOptions.cs
- TcpConnectionPoolSettings.cs
- UrlPath.cs
- BitmapEffectvisualstate.cs
- EventLogTraceListener.cs
- GeneralTransform3DGroup.cs
- ConfigurationSectionCollection.cs
- BasePropertyDescriptor.cs
- HotCommands.cs
- DataKey.cs
- ComplexPropertyEntry.cs
- FtpRequestCacheValidator.cs
- Rect3DValueSerializer.cs
- VisualStyleTypesAndProperties.cs
- OrthographicCamera.cs
- WindowsListViewGroupHelper.cs
- StreamWithDictionary.cs
- ConfigurationSectionCollection.cs
- RenamedEventArgs.cs
- HScrollBar.cs
- SeekStoryboard.cs
- HTMLTagNameToTypeMapper.cs
- LayoutEditorPart.cs
- Calendar.cs
- DataService.cs
- EntityTypeEmitter.cs