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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
// WARNING:
//
// This is just an IObjectReference proxy for the former V1.1 Surrogate Encoder
// All this does is make an encoder of the correct type, it DOES NOT maintain state.
namespace System.Text
{
using System;
using System.Runtime.Serialization;
using System.Security.Permissions;
using System.Diagnostics;
using System.Diagnostics.Contracts;
/*=================================SurrogateEncoder==================================
** This class is here only to deserialize the SurrogateEncoder class from Everett (V1.1) into
** Appropriate Whidbey (V2.0) objects.
==============================================================================*/
[Serializable]
internal sealed class SurrogateEncoder : IObjectReference, ISerializable
{
// Might need this when GetRealObjecting
[NonSerialized]
private Encoding realEncoding = null;
// Constructor called by serialization.
internal SurrogateEncoder(SerializationInfo info, StreamingContext context)
{
// Any info?
if (info==null) throw new ArgumentNullException(nameof(info));
Contract.EndContractBlock();
// All versions have a code page
this.realEncoding = (Encoding)info.GetValue("m_encoding", typeof(Encoding));
}
// Just get it from GetEncoding
public Object GetRealObject(StreamingContext context)
{
// Need to get our Encoding's Encoder
return this.realEncoding.GetEncoder();
}
// ISerializable implementation
void ISerializable.GetObjectData(SerializationInfo info, StreamingContext context)
{
// We cannot ever call this.
Debug.Assert(false, "Didn't expect to make it to SurrogateEncoder.GetObjectData");
throw new ArgumentException(Environment.GetResourceString("Arg_ExecutionEngineException"));
}
}
}
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