1 files changed, 0 insertions, 200 deletions
diff --git a/csharp/ProtocolBuffers/ExtendableMessage.cs b/csharp/ProtocolBuffers/ExtendableMessage.cs
deleted file mode 100644
index a4a6e17e..00000000
--- a/csharp/ProtocolBuffers/ExtendableMessage.cs
+++ /dev/null
@@ -1,200 +0,0 @@
-// Protocol Buffers - Google's data interchange format
-// Copyright 2008 Google Inc.
-// http://code.google.com/p/protobuf/
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-using System;
-using System.Collections.Generic;
-using Google.ProtocolBuffers.Collections;
-using Google.ProtocolBuffers.Descriptors;
-
-namespace Google.ProtocolBuffers {
-  public abstract class ExtendableMessage<TMessage, TBuilder> : GeneratedMessage<TMessage, TBuilder>
-    where TMessage : GeneratedMessage<TMessage, TBuilder>
-    where TBuilder : GeneratedBuilder<TMessage, TBuilder> {
-
-    protected ExtendableMessage() {}
-    private readonly FieldSet extensions = FieldSet.CreateInstance();
-
-    /// <summary>
-    /// Access for the builder.
-    /// </summary>
-    internal FieldSet Extensions {
-      get { return extensions; }
-    }
-
-    /// <summary>
-    /// Checks if a singular extension is present.
-    /// </summary>
-    public bool HasExtension<TExtension>(GeneratedExtensionBase<TExtension> extension) {
-      return extensions.HasField(extension.Descriptor);
-    }
-
-    /// <summary>
-    /// Returns the number of elements in a repeated extension.
-    /// </summary>
-    public int GetExtensionCount<TExtension>(GeneratedExtensionBase<IList<TExtension>> extension) {
-      return extensions.GetRepeatedFieldCount(extension.Descriptor);
-    }
-
-    /// <summary>
-    /// Returns the value of an extension.
-    /// </summary>
-    public TExtension GetExtension<TExtension>(GeneratedExtensionBase<TExtension> extension) {
-      object value = extensions[extension.Descriptor];
-      if (value == null) {
-        return (TExtension) extension.MessageDefaultInstance;
-      } else {
-        return (TExtension) extension.FromReflectionType(value);
-      }
-    }
-
-    /// <summary>
-    /// Returns one element of a repeated extension.
-    /// </summary>
-    public TExtension GetExtension<TExtension>(GeneratedExtensionBase<IList<TExtension>> extension, int index) {
-      return (TExtension) extension.SingularFromReflectionType(extensions[extension.Descriptor, index]);
-    }
-
-    /// <summary>
-    /// Called to check if all extensions are initialized.
-    /// </summary>
-    protected bool ExtensionsAreInitialized {
-      get { return extensions.IsInitialized; }      
-    }
-
-    public override bool IsInitialized {
-      get {
-        return base.IsInitialized && ExtensionsAreInitialized;
-      }
-    }
-
-    #region Reflection
-    public override IDictionary<FieldDescriptor, object> AllFields {
-      get {
-        IDictionary<FieldDescriptor, object> result = GetMutableFieldMap();
-        foreach(KeyValuePair<FieldDescriptor, object> entry in extensions.AllFields) {
-          result[entry.Key] = entry.Value;
-        }
-        return Dictionaries.AsReadOnly(result);
-      }
-    }
-
-    public override bool HasField(FieldDescriptor field) {
-      if (field.IsExtension) {
-        VerifyContainingType(field);
-        return extensions.HasField(field);
-      } else {
-        return base.HasField(field);
-      }
-    }
-
-    public override object this[FieldDescriptor field] {
-      get {
-        if (field.IsExtension) {
-          VerifyContainingType(field);
-          object value = extensions[field];
-          if (value == null) {
-            // Lacking an ExtensionRegistry, we have no way to determine the
-            // extension's real type, so we return a DynamicMessage.
-            // TODO(jonskeet): Work out what this means
-            return DynamicMessage.GetDefaultInstance(field.MessageType);
-          } else {
-            return value;
-          }
-        } else {
-          return base[field];
-        }
-      }
-    }
-
-    public override int GetRepeatedFieldCount(FieldDescriptor field) {
-      if (field.IsExtension) {
-        VerifyContainingType(field);
-        return extensions.GetRepeatedFieldCount(field);
-      } else {
-        return base.GetRepeatedFieldCount(field);
-      }
-    }
-
-    public override object this[FieldDescriptor field, int index] {
-      get {
-        if (field.IsExtension) {
-          VerifyContainingType(field);
-          return extensions[field, index];
-        } else {
-          return base[field, index];
-        }
-      }
-    }
-  
-    internal void VerifyContainingType(FieldDescriptor field) {
-      if (field.ContainingType != DescriptorForType) {
-        throw new ArgumentException("FieldDescriptor does not match message type.");
-      }
-    }
-    #endregion
-
-    /// <summary>
-    /// Used by subclasses to serialize extensions. Extension ranges may be
-    /// interleaves with field numbers, but we must write them in canonical
-    /// (sorted by field number) order. This class helps us to write individual
-    /// ranges of extensions at once.
-    /// 
-    /// TODO(jonskeet): See if we can improve this in terms of readability.
-    /// </summary>
-    protected class ExtensionWriter {
-      readonly IEnumerator<KeyValuePair<FieldDescriptor, object>> iterator;
-      readonly FieldSet extensions;
-      KeyValuePair<FieldDescriptor, object>? next = null;
-
-      internal ExtensionWriter(ExtendableMessage<TMessage, TBuilder> message) {
-        extensions = message.extensions;
-        iterator = message.extensions.GetEnumerator();
-        if (iterator.MoveNext()) {
-          next = iterator.Current;
-        }
-      }
-
-      public void WriteUntil(int end, CodedOutputStream output) {
-        while (next != null && next.Value.Key.FieldNumber < end) {
-          extensions.WriteField(next.Value.Key, next.Value.Value, output);
-          if (iterator.MoveNext()) {
-            next = iterator.Current;
-          } else {
-            next = null;
-          }
-        }
-      }
-    }
-
-    protected ExtensionWriter CreateExtensionWriter(ExtendableMessage<TMessage, TBuilder> message) {
-      return new ExtensionWriter(message);
-    }
-
-    /// <summary>
-    /// Called by subclasses to compute the size of extensions.
-    /// </summary>
-    protected int ExtensionsSerializedSize {
-      get { return extensions.SerializedSize; }
-    }
-
-    internal void VerifyExtensionContainingType<TExtension>(GeneratedExtensionBase<TExtension> extension) {
-      if (extension.Descriptor.ContainingType != DescriptorForType) {
-        // This can only happen if someone uses unchecked operations.
-        throw new ArgumentException("Extension is for type \"" + extension.Descriptor.ContainingType.FullName
-          + "\" which does not match message type \"" + DescriptorForType.FullName + "\".");
-      }
-    }
-  }
-}