Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / whidbey / NetFxQFE / 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")); } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // ==++== // // 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")); } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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