1 files changed, 100 insertions, 0 deletions
diff --git a/csharp/src/ProtocolBuffers/GeneratedBuilderLite.cs b/csharp/src/ProtocolBuffers/GeneratedBuilderLite.cs
new file mode 100644
index 00000000..5783c987
--- /dev/null
+++ b/csharp/src/ProtocolBuffers/GeneratedBuilderLite.cs
@@ -0,0 +1,100 @@
+#region Copyright notice and license
+
+// Protocol Buffers - Google's data interchange format
+// Copyright 2008 Google Inc.  All rights reserved.
+// http://github.com/jskeet/dotnet-protobufs/
+// Original C++/Java/Python code:
+// http://code.google.com/p/protobuf/
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#endregion
+
+using System;
+using System.Collections.Generic;
+
+namespace Google.ProtocolBuffers
+{
+    /// <summary>
+    /// All generated protocol message builder classes extend this class. It implements
+    /// most of the IBuilder interface using reflection. Users can ignore this class
+    /// as an implementation detail.
+    /// </summary>
+    public abstract partial class GeneratedBuilderLite<TMessage, TBuilder> : AbstractBuilderLite<TMessage, TBuilder>
+        where TMessage : GeneratedMessageLite<TMessage, TBuilder>
+        where TBuilder : GeneratedBuilderLite<TMessage, TBuilder>
+    {
+        /// <summary>
+        /// Returns the message being built at the moment.
+        /// </summary>
+        protected abstract TMessage MessageBeingBuilt { get; }
+
+        public override TBuilder MergeFrom(IMessageLite other)
+        {
+            //do nothing, Lite runtime does not support cross-message merges
+            return ThisBuilder;
+        }
+
+        public abstract TBuilder MergeFrom(TMessage other);
+
+        /// <summary>
+        /// Called by derived classes to parse an unknown field.
+        /// </summary>
+        /// <returns>true unless the tag is an end-group tag</returns>
+        protected virtual bool ParseUnknownField(ICodedInputStream input,
+                                                 ExtensionRegistry extensionRegistry, uint tag, string fieldName)
+        {
+            return input.SkipField();
+        }
+
+        /// <summary>
+        /// Like Build(), but will wrap UninitializedMessageException in
+        /// InvalidProtocolBufferException.
+        /// </summary>
+        public TMessage BuildParsed()
+        {
+            if (!IsInitialized)
+            {
+                throw new UninitializedMessageException(MessageBeingBuilt).AsInvalidProtocolBufferException();
+            }
+            return BuildPartial();
+        }
+
+        /// <summary>
+        /// Implementation of <see cref="IBuilder{TMessage, TBuilder}.Build" />.
+        /// </summary>
+        public override TMessage Build()
+        {
+            // If the message is null, we'll throw a more appropriate exception in BuildPartial.
+            if (!IsInitialized)
+            {
+                throw new UninitializedMessageException(MessageBeingBuilt);
+            }
+            return BuildPartial();
+        }
+    }
+}
+\ No newline at end of file