reformatted all code to .NET standard formatting

1 files changed, 1423 insertions, 1146 deletions

diff --git a/src/ProtocolBuffers/CodedOutputStream.cs b/src/ProtocolBuffers/CodedOutputStream.cs
index 264ca6ef..f905b357 100644
--- a/src/ProtocolBuffers/CodedOutputStream.cs
+++ b/src/ProtocolBuffers/CodedOutputStream.cs
@@ -1,1146 +1,1423 @@
-#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.IO;
-using System.Text;
-using Google.ProtocolBuffers.Descriptors;
-
-namespace Google.ProtocolBuffers {
-
-  /// <summary>
-  /// Encodes and writes protocol message fields.
-  /// </summary>
-  /// <remarks>
-  /// This class contains two kinds of methods:  methods that write specific
-  /// protocol message constructs and field types (e.g. WriteTag and
-  /// WriteInt32) and methods that write low-level values (e.g.
-  /// WriteRawVarint32 and WriteRawBytes).  If you are writing encoded protocol
-  /// messages, you should use the former methods, but if you are writing some
-  /// other format of your own design, use the latter. The names of the former
-  /// methods are taken from the protocol buffer type names, not .NET types.
-  /// (Hence WriteFloat instead of WriteSingle, and WriteBool instead of WriteBoolean.)
-  /// </remarks>
-  public sealed class CodedOutputStream {
-    /// <summary>
-    /// The buffer size used by CreateInstance(Stream).
-    /// </summary>
-    public static readonly int DefaultBufferSize = 4096;
-
-    private readonly byte[] buffer;
-    private readonly int limit;
-    private int position;
-    private readonly Stream output;
-
-    #region Construction
-    private CodedOutputStream(byte[] buffer, int offset, int length) {
-      this.output = null;
-      this.buffer = buffer;
-      this.position = offset;
-      this.limit = offset + length;
-    }
-
-    private CodedOutputStream(Stream output, byte[] buffer) {
-      this.output = output;
-      this.buffer = buffer;
-      this.position = 0;
-      this.limit = buffer.Length;
-    }
-
-    /// <summary>
-    /// Creates a new CodedOutputStream which write to the given stream.
-    /// </summary>
-    public static CodedOutputStream CreateInstance(Stream output) {
-      return CreateInstance(output, DefaultBufferSize);
-    }
-
-    /// <summary>
-    /// Creates a new CodedOutputStream which write to the given stream and uses
-    /// the specified buffer size.
-    /// </summary>
-    public static CodedOutputStream CreateInstance(Stream output, int bufferSize) {
-      return new CodedOutputStream(output, new byte[bufferSize]);
-    }
-
-    /// <summary>
-    /// Creates a new CodedOutputStream that writes directly to the given
-    /// byte array. If more bytes are written than fit in the array,
-    /// OutOfSpaceException will be thrown.
-    /// </summary>
-    public static CodedOutputStream CreateInstance(byte[] flatArray) {
-      return CreateInstance(flatArray, 0, flatArray.Length);
-    }
-
-    /// <summary>
-    /// Creates a new CodedOutputStream that writes directly to the given
-    /// byte array slice. If more bytes are written than fit in the array,
-    /// OutOfSpaceException will be thrown.
-    /// </summary>
-    public static CodedOutputStream CreateInstance(byte[] flatArray, int offset, int length) {
-      return new CodedOutputStream(flatArray, offset, length);
-    }
-    #endregion
-
-    #region Writing of tags etc
-    /// <summary>
-    /// Writes a double field value, including tag, to the stream.
-    /// </summary>
-    public void WriteDouble(int fieldNumber, double value) {
-      WriteTag(fieldNumber, WireFormat.WireType.Fixed64);
-      WriteDoubleNoTag(value);
-    }
-
-    /// <summary>
-    /// Writes a float field value, including tag, to the stream.
-    /// </summary>
-    public void WriteFloat(int fieldNumber, float value) {
-      WriteTag(fieldNumber, WireFormat.WireType.Fixed32);
-      WriteFloatNoTag(value);
-    }
-
-    /// <summary>
-    /// Writes a uint64 field value, including tag, to the stream.
-    /// </summary>
-    [CLSCompliant(false)]
-    public void WriteUInt64(int fieldNumber, ulong value) {
-      WriteTag(fieldNumber, WireFormat.WireType.Varint);
-      WriteRawVarint64(value);
-    }
-
-    /// <summary>
-    /// Writes an int64 field value, including tag, to the stream.
-    /// </summary>
-    public void WriteInt64(int fieldNumber, long value) {
-      WriteTag(fieldNumber, WireFormat.WireType.Varint);
-      WriteRawVarint64((ulong)value);
-    }
-
-    /// <summary>
-    /// Writes an int32 field value, including tag, to the stream.
-    /// </summary>
-    public void WriteInt32(int fieldNumber, int value) {
-      WriteTag(fieldNumber, WireFormat.WireType.Varint);
-      if (value >= 0) {
-        WriteRawVarint32((uint)value);
-      } else {
-        // Must sign-extend.
-        WriteRawVarint64((ulong)value);
-      }
-    }
-
-    /// <summary>
-    /// Writes a fixed64 field value, including tag, to the stream.
-    /// </summary>
-    [CLSCompliant(false)]
-    public void WriteFixed64(int fieldNumber, ulong value) {
-      WriteTag(fieldNumber, WireFormat.WireType.Fixed64);
-      WriteRawLittleEndian64(value);
-    }
-
-    /// <summary>
-    /// Writes a fixed32 field value, including tag, to the stream.
-    /// </summary>
-    [CLSCompliant(false)]
-    public void WriteFixed32(int fieldNumber, uint value) {
-      WriteTag(fieldNumber, WireFormat.WireType.Fixed32);
-      WriteRawLittleEndian32(value);
-    }
-
-    /// <summary>
-    /// Writes a bool field value, including tag, to the stream.
-    /// </summary>
-    public void WriteBool(int fieldNumber, bool value) {
-      WriteTag(fieldNumber, WireFormat.WireType.Varint);
-      WriteRawByte(value ? (byte)1 : (byte)0);
-    }
-
-    /// <summary>
-    /// Writes a string field value, including tag, to the stream.
-    /// </summary>
-    public void WriteString(int fieldNumber, string value) {
-      WriteTag(fieldNumber, WireFormat.WireType.LengthDelimited);
-      // Optimise the case where we have enough space to write
-      // the string directly to the buffer, which should be common.
-      int length = Encoding.UTF8.GetByteCount(value);
-      WriteRawVarint32((uint) length);
-      if (limit - position >= length) {
-        Encoding.UTF8.GetBytes(value, 0, value.Length, buffer, position);
-        position += length;
-      } else {
-        byte[] bytes = Encoding.UTF8.GetBytes(value);
-        WriteRawBytes(bytes);
-      }
-    }
-
-    /// <summary>
-    /// Writes a group field value, including tag, to the stream.
-    /// </summary>
-    public void WriteGroup(int fieldNumber, IMessageLite value) {
-      WriteTag(fieldNumber, WireFormat.WireType.StartGroup);
-      value.WriteTo(this);
-      WriteTag(fieldNumber, WireFormat.WireType.EndGroup);
-    }
-
-    [Obsolete]
-    public void WriteUnknownGroup(int fieldNumber, IMessageLite value) {
-      WriteTag(fieldNumber, WireFormat.WireType.StartGroup);
-      value.WriteTo(this);
-      WriteTag(fieldNumber, WireFormat.WireType.EndGroup);
-    }
-
-    public void WriteMessage(int fieldNumber, IMessageLite value) {
-      WriteTag(fieldNumber, WireFormat.WireType.LengthDelimited);
-      WriteRawVarint32((uint)value.SerializedSize);
-      value.WriteTo(this);
-    }
-
-    public void WriteBytes(int fieldNumber, ByteString value) {
-      // TODO(jonskeet): Optimise this! (No need to copy the bytes twice.)
-      WriteTag(fieldNumber, WireFormat.WireType.LengthDelimited);
-      byte[] bytes = value.ToByteArray();
-      WriteRawVarint32((uint)bytes.Length);
-      WriteRawBytes(bytes);
-    }
-
-    [CLSCompliant(false)]
-    public void WriteUInt32(int fieldNumber, uint value) {
-      WriteTag(fieldNumber, WireFormat.WireType.Varint);
-      WriteRawVarint32(value);
-    }
-
-    public void WriteEnum(int fieldNumber, int value) {
-      WriteTag(fieldNumber, WireFormat.WireType.Varint);
-      WriteRawVarint32((uint)value);
-    }
-
-    public void WriteSFixed32(int fieldNumber, int value) {
-      WriteTag(fieldNumber, WireFormat.WireType.Fixed32);
-      WriteRawLittleEndian32((uint)value);
-    }
-
-    public void WriteSFixed64(int fieldNumber, long value) {
-      WriteTag(fieldNumber, WireFormat.WireType.Fixed64);
-      WriteRawLittleEndian64((ulong)value);
-    }
-
-    public void WriteSInt32(int fieldNumber, int value) {
-      WriteTag(fieldNumber, WireFormat.WireType.Varint);
-      WriteRawVarint32(EncodeZigZag32(value));
-    }
-
-    public void WriteSInt64(int fieldNumber, long value) {
-      WriteTag(fieldNumber, WireFormat.WireType.Varint);
-      WriteRawVarint64(EncodeZigZag64(value));
-    }
-
-    public void WriteMessageSetExtension(int fieldNumber, IMessageLite value) {
-      WriteTag(WireFormat.MessageSetField.Item, WireFormat.WireType.StartGroup);
-      WriteUInt32(WireFormat.MessageSetField.TypeID, (uint)fieldNumber);
-      WriteMessage(WireFormat.MessageSetField.Message, value);
-      WriteTag(WireFormat.MessageSetField.Item, WireFormat.WireType.EndGroup);
-    }
-
-    public void WriteRawMessageSetExtension(int fieldNumber, ByteString value) {
-      WriteTag(WireFormat.MessageSetField.Item, WireFormat.WireType.StartGroup);
-      WriteUInt32(WireFormat.MessageSetField.TypeID, (uint)fieldNumber);
-      WriteBytes(WireFormat.MessageSetField.Message, value);
-      WriteTag(WireFormat.MessageSetField.Item, WireFormat.WireType.EndGroup);
-    }
-
-    public void WriteField(FieldType fieldType, int fieldNumber, object value) {
-      switch (fieldType) {
-        case FieldType.Double: WriteDouble(fieldNumber, (double)value); break;
-        case FieldType.Float: WriteFloat(fieldNumber, (float)value); break;
-        case FieldType.Int64: WriteInt64(fieldNumber, (long)value); break;
-        case FieldType.UInt64: WriteUInt64(fieldNumber, (ulong)value); break;
-        case FieldType.Int32: WriteInt32(fieldNumber, (int)value); break;
-        case FieldType.Fixed64: WriteFixed64(fieldNumber, (ulong)value); break;
-        case FieldType.Fixed32: WriteFixed32(fieldNumber, (uint)value); break;
-        case FieldType.Bool: WriteBool(fieldNumber, (bool)value); break;
-        case FieldType.String: WriteString(fieldNumber, (string)value); break;
-        case FieldType.Group: WriteGroup(fieldNumber, (IMessageLite)value); break;
-        case FieldType.Message: WriteMessage(fieldNumber, (IMessageLite)value); break;
-        case FieldType.Bytes: WriteBytes(fieldNumber, (ByteString)value); break;
-        case FieldType.UInt32: WriteUInt32(fieldNumber, (uint)value); break;
-        case FieldType.SFixed32: WriteSFixed32(fieldNumber, (int)value); break;
-        case FieldType.SFixed64: WriteSFixed64(fieldNumber, (long)value); break;
-        case FieldType.SInt32: WriteSInt32(fieldNumber, (int)value); break;
-        case FieldType.SInt64: WriteSInt64(fieldNumber, (long)value); break;
-        case FieldType.Enum: WriteEnum(fieldNumber, ((IEnumLite)value).Number);
-          break;
-      }
-    }
-
-    public void WriteFieldNoTag(FieldType fieldType, object value) {
-      switch (fieldType) {
-        case FieldType.Double: WriteDoubleNoTag((double)value); break;
-        case FieldType.Float: WriteFloatNoTag((float)value); break;
-        case FieldType.Int64: WriteInt64NoTag((long)value); break;
-        case FieldType.UInt64: WriteUInt64NoTag((ulong)value); break;
-        case FieldType.Int32: WriteInt32NoTag((int)value); break;
-        case FieldType.Fixed64: WriteFixed64NoTag((ulong)value); break;
-        case FieldType.Fixed32: WriteFixed32NoTag((uint)value); break;
-        case FieldType.Bool: WriteBoolNoTag((bool)value); break;
-        case FieldType.String: WriteStringNoTag((string)value); break;
-        case FieldType.Group: WriteGroupNoTag((IMessageLite)value); break;
-        case FieldType.Message: WriteMessageNoTag((IMessageLite)value); break;
-        case FieldType.Bytes: WriteBytesNoTag((ByteString)value); break;
-        case FieldType.UInt32: WriteUInt32NoTag((uint)value); break;
-        case FieldType.SFixed32: WriteSFixed32NoTag((int)value); break;
-        case FieldType.SFixed64: WriteSFixed64NoTag((long)value); break;
-        case FieldType.SInt32: WriteSInt32NoTag((int)value); break;
-        case FieldType.SInt64: WriteSInt64NoTag((long)value); break;
-        case FieldType.Enum: WriteEnumNoTag(((IEnumLite)value).Number);
-          break;
-      }
-    }
-    #endregion
-
-    #region Writing of values without tags
-    /// <summary>
-    /// Writes a double field value, including tag, to the stream.
-    /// </summary>
-    public void WriteDoubleNoTag(double value) {
-      // TODO(jonskeet): Test this on different endiannesses
-#if SILVERLIGHT2 || COMPACT_FRAMEWORK_35
-      byte[] bytes = BitConverter.GetBytes(value);
-      WriteRawBytes(bytes, 0, 8);
-#else
-      WriteRawLittleEndian64((ulong)BitConverter.DoubleToInt64Bits(value));
-#endif
-    }
-
-    /// <summary>
-    /// Writes a float field value, without a tag, to the stream.
-    /// </summary>
-    public void WriteFloatNoTag(float value) {
-      // TODO(jonskeet): Test this on different endiannesses
-      byte[] rawBytes = BitConverter.GetBytes(value);
-      uint asInteger = BitConverter.ToUInt32(rawBytes, 0);
-      WriteRawLittleEndian32(asInteger);
-    }
-
-    /// <summary>
-    /// Writes a uint64 field value, without a tag, to the stream.
-    /// </summary>
-    [CLSCompliant(false)]
-    public void WriteUInt64NoTag(ulong value) {
-      WriteRawVarint64(value);
-    }
-
-    /// <summary>
-    /// Writes an int64 field value, without a tag, to the stream.
-    /// </summary>
-    public void WriteInt64NoTag(long value) {
-      WriteRawVarint64((ulong)value);
-    }
-
-    /// <summary>
-    /// Writes an int32 field value, without a tag, to the stream.
-    /// </summary>
-    public void WriteInt32NoTag(int value) {
-      if (value >= 0) {
-        WriteRawVarint32((uint)value);
-      } else {
-        // Must sign-extend.
-        WriteRawVarint64((ulong)value);
-      }
-    }
-
-    /// <summary>
-    /// Writes a fixed64 field value, without a tag, to the stream.
-    /// </summary>
-    [CLSCompliant(false)]
-    public void WriteFixed64NoTag(ulong value) {
-      WriteRawLittleEndian64(value);
-    }
-
-    /// <summary>
-    /// Writes a fixed32 field value, without a tag, to the stream.
-    /// </summary>
-    [CLSCompliant(false)]
-    public void WriteFixed32NoTag(uint value) {
-      WriteRawLittleEndian32(value);
-    }
-
-    /// <summary>
-    /// Writes a bool field value, without a tag, to the stream.
-    /// </summary>
-    public void WriteBoolNoTag(bool value) {
-      WriteRawByte(value ? (byte)1 : (byte)0);
-    }
-
-    /// <summary>
-    /// Writes a string field value, without a tag, to the stream.
-    /// </summary>
-    public void WriteStringNoTag(string value) {
-      // Optimise the case where we have enough space to write
-      // the string directly to the buffer, which should be common.
-      int length = Encoding.UTF8.GetByteCount(value);
-      WriteRawVarint32((uint)length);
-      if (limit - position >= length) {
-        Encoding.UTF8.GetBytes(value, 0, value.Length, buffer, position);
-        position += length;
-      } else {
-        byte[] bytes = Encoding.UTF8.GetBytes(value);
-        WriteRawBytes(bytes);
-      }
-    }
-
-    /// <summary>
-    /// Writes a group field value, without a tag, to the stream.
-    /// </summary>
-    public void WriteGroupNoTag(IMessageLite value) {
-      value.WriteTo(this);
-    }
-
-    public void WriteMessageNoTag(IMessageLite value) {
-      WriteRawVarint32((uint)value.SerializedSize);
-      value.WriteTo(this);
-    }
-
-    public void WriteBytesNoTag(ByteString value) {
-      // TODO(jonskeet): Optimise this! (No need to copy the bytes twice.)
-      byte[] bytes = value.ToByteArray();
-      WriteRawVarint32((uint)bytes.Length);
-      WriteRawBytes(bytes);
-    }
-
-    [CLSCompliant(false)]
-    public void WriteUInt32NoTag(uint value) {
-      WriteRawVarint32(value);
-    }
-
-    public void WriteEnumNoTag(int value) {
-      WriteRawVarint32((uint)value);
-    }
-
-    public void WriteSFixed32NoTag(int value) {
-      WriteRawLittleEndian32((uint)value);
-    }
-
-    public void WriteSFixed64NoTag(long value) {
-      WriteRawLittleEndian64((ulong)value);
-    }
-
-    public void WriteSInt32NoTag(int value) {
-      WriteRawVarint32(EncodeZigZag32(value));
-    }
-
-    public void WriteSInt64NoTag(long value) {
-      WriteRawVarint64(EncodeZigZag64(value));
-    }
-
-    #endregion
-
-    #region Underlying writing primitives
-    /// <summary>
-    /// Encodes and writes a tag.
-    /// </summary>
-    [CLSCompliant(false)]
-    public void WriteTag(int fieldNumber, WireFormat.WireType type) {
-      WriteRawVarint32(WireFormat.MakeTag(fieldNumber, type));
-    }
-
-    private void SlowWriteRawVarint32(uint value) {
-      while (true) {
-        if ((value & ~0x7F) == 0) {
-          WriteRawByte(value);
-          return;
-        } else {
-          WriteRawByte((value & 0x7F) | 0x80);
-          value >>= 7;
-        }
-      }
-    }
-
-    /// <summary>
-    /// Writes a 32 bit value as a varint. The fast route is taken when
-    /// there's enough buffer space left to whizz through without checking
-    /// for each byte; otherwise, we resort to calling WriteRawByte each time.
-    /// </summary>
-    [CLSCompliant(false)]
-    public void WriteRawVarint32(uint value) {
-      if (position + 5 > limit) {
-        SlowWriteRawVarint32(value);
-        return;
-      }
-
-      while (true) {
-        if ((value & ~0x7F) == 0) {
-          buffer[position++] = (byte) value;
-          return;
-        } else {
-          buffer[position++] = (byte)((value & 0x7F) | 0x80);
-          value >>= 7;
-        }
-      }
-    }
-
-    [CLSCompliant(false)]
-    public void WriteRawVarint64(ulong value) {
-      while (true) {
-        if ((value & ~0x7FUL) == 0) {
-          WriteRawByte((uint)value);
-          return;
-        } else {
-          WriteRawByte(((uint)value & 0x7F) | 0x80);
-          value >>= 7;
-        }
-      }
-    }
-
-    [CLSCompliant(false)]
-    public void WriteRawLittleEndian32(uint value) {
-      WriteRawByte((byte)value);
-      WriteRawByte((byte)(value >> 8));
-      WriteRawByte((byte)(value >> 16));
-      WriteRawByte((byte)(value >> 24));
-    }
-
-    [CLSCompliant(false)]
-    public void WriteRawLittleEndian64(ulong value) {
-      WriteRawByte((byte)value);
-      WriteRawByte((byte)(value >> 8));
-      WriteRawByte((byte)(value >> 16));
-      WriteRawByte((byte)(value >> 24));
-      WriteRawByte((byte)(value >> 32));
-      WriteRawByte((byte)(value >> 40));
-      WriteRawByte((byte)(value >> 48));
-      WriteRawByte((byte)(value >> 56));
-    }
-
-    public void WriteRawByte(byte value) {
-      if (position == limit) {
-        RefreshBuffer();
-      }
-
-      buffer[position++] = value;
-    }
-
-    [CLSCompliant(false)]
-    public void WriteRawByte(uint value) {
-      WriteRawByte((byte)value);
-    }
-
-    /// <summary>
-    /// Writes out an array of bytes.
-    /// </summary>
-    public void WriteRawBytes(byte[] value) {
-      WriteRawBytes(value, 0, value.Length);
-    }
-
-    /// <summary>
-    /// Writes out part of an array of bytes.
-    /// </summary>
-    public void WriteRawBytes(byte[] value, int offset, int length) {
-      if (limit - position >= length) {
-        Array.Copy(value, offset, buffer, position, length);
-        // We have room in the current buffer.
-        position += length;
-      } else {
-        // Write extends past current buffer.  Fill the rest of this buffer and
-        // flush.
-        int bytesWritten = limit - position;
-        Array.Copy(value, offset, buffer, position, bytesWritten);
-        offset += bytesWritten;
-        length -= bytesWritten;
-        position = limit;
-        RefreshBuffer();
-
-        // Now deal with the rest.
-        // Since we have an output stream, this is our buffer
-        // and buffer offset == 0
-        if (length <= limit) {
-          // Fits in new buffer.
-          Array.Copy(value, offset, buffer, 0, length);
-          position = length;
-        } else {
-          // Write is very big.  Let's do it all at once.
-          output.Write(value, offset, length);
-        }
-      }
-    }
-    #endregion
-
-    #region Size computations
-
-    const int LittleEndian64Size = 8;
-    const int LittleEndian32Size = 4;
-
-    /// <summary>
-    /// Compute the number of bytes that would be needed to encode a
-    /// double field, including the tag.
-    /// </summary>
-    public static int ComputeDoubleSize(int fieldNumber, double value) {
-      return ComputeTagSize(fieldNumber) + LittleEndian64Size;
-    }
-
-    /// <summary>
-    /// Compute the number of bytes that would be needed to encode a
-    /// float field, including the tag.
-    /// </summary>
-    public static int ComputeFloatSize(int fieldNumber, float value) {
-      return ComputeTagSize(fieldNumber) + LittleEndian32Size;
-    }
-
-    /// <summary>
-    /// Compute the number of bytes that would be needed to encode a
-    /// uint64 field, including the tag.
-    /// </summary>
-    [CLSCompliant(false)]
-    public static int ComputeUInt64Size(int fieldNumber, ulong value) {
-      return ComputeTagSize(fieldNumber) + ComputeRawVarint64Size(value);
-    }
-
-    /// <summary>
-    /// Compute the number of bytes that would be needed to encode an
-    /// int64 field, including the tag.
-    /// </summary>
-    public static int ComputeInt64Size(int fieldNumber, long value) {
-      return ComputeTagSize(fieldNumber) + ComputeRawVarint64Size((ulong)value);
-    }
-
-    /// <summary>
-    /// Compute the number of bytes that would be needed to encode an
-    /// int32 field, including the tag.
-    /// </summary>
-    public static int ComputeInt32Size(int fieldNumber, int value) {
-      if (value >= 0) {
-        return ComputeTagSize(fieldNumber) + ComputeRawVarint32Size((uint)value);
-      } else {
-        // Must sign-extend.
-        return ComputeTagSize(fieldNumber) + 10;
-      }
-    }
-
-    /// <summary>
-    /// Compute the number of bytes that would be needed to encode a
-    /// fixed64 field, including the tag.
-    /// </summary>
-    [CLSCompliant(false)]
-    public static int ComputeFixed64Size(int fieldNumber, ulong value) {
-      return ComputeTagSize(fieldNumber) + LittleEndian64Size;
-    }
-
-    /// <summary>
-    /// Compute the number of bytes that would be needed to encode a
-    /// fixed32 field, including the tag.
-    /// </summary>
-    [CLSCompliant(false)]
-    public static int ComputeFixed32Size(int fieldNumber, uint value) {
-      return ComputeTagSize(fieldNumber) + LittleEndian32Size;
-    }
-
-    /// <summary>
-    /// Compute the number of bytes that would be needed to encode a
-    /// bool field, including the tag.
-    /// </summary>
-    public static int ComputeBoolSize(int fieldNumber, bool value) {
-      return ComputeTagSize(fieldNumber) + 1;
-    }
-
-    /// <summary>
-    /// Compute the number of bytes that would be needed to encode a
-    /// string field, including the tag.
-    /// </summary>
-    public static int ComputeStringSize(int fieldNumber, String value) {
-      int byteArraySize = Encoding.UTF8.GetByteCount(value);
-      return ComputeTagSize(fieldNumber) +
-             ComputeRawVarint32Size((uint)byteArraySize) +
-             byteArraySize;
-    }
-
-    /// <summary>
-    /// Compute the number of bytes that would be needed to encode a
-    /// group field, including the tag.
-    /// </summary>
-    public static int ComputeGroupSize(int fieldNumber, IMessageLite value) {
-      return ComputeTagSize(fieldNumber) * 2 + value.SerializedSize;
-    }
-
-    /// <summary>
-    /// Compute the number of bytes that would be needed to encode a
-    /// group field represented by an UnknownFieldSet, including the tag.
-    /// </summary>
-    [Obsolete]
-    public static int ComputeUnknownGroupSize(int fieldNumber,
-                                              IMessageLite value) {
-      return ComputeTagSize(fieldNumber) * 2 + value.SerializedSize;
-    }
-
-    /// <summary>
-    /// Compute the number of bytes that would be needed to encode an
-    /// embedded message field, including the tag.
-    /// </summary>
-    public static int ComputeMessageSize(int fieldNumber, IMessageLite value) {
-      int size = value.SerializedSize;
-      return ComputeTagSize(fieldNumber) + ComputeRawVarint32Size((uint)size) + size;
-    }
-
-    /// <summary>
-    /// Compute the number of bytes that would be needed to encode a
-    /// bytes field, including the tag.
-    /// </summary>
-    public static int ComputeBytesSize(int fieldNumber, ByteString value) {
-      return ComputeTagSize(fieldNumber) +
-             ComputeRawVarint32Size((uint)value.Length) +
-             value.Length;
-    }
-
-    /// <summary>
-    /// Compute the number of bytes that would be needed to encode a
-    /// uint32 field, including the tag.
-    /// </summary>
-    [CLSCompliant(false)]
-    public static int ComputeUInt32Size(int fieldNumber, uint value) {
-      return ComputeTagSize(fieldNumber) + ComputeRawVarint32Size(value);
-    }
-
-    /// <summary>
-    /// Compute the number of bytes that would be needed to encode a
-    /// enum field, including the tag. The caller is responsible for
-    /// converting the enum value to its numeric value.
-    /// </summary>
-    public static int ComputeEnumSize(int fieldNumber, int value) {
-      return ComputeTagSize(fieldNumber) + ComputeRawVarint32Size((uint)value);
-    }
-
-    /// <summary>
-    /// Compute the number of bytes that would be needed to encode an
-    /// sfixed32 field, including the tag.
-    /// </summary>
-    public static int ComputeSFixed32Size(int fieldNumber, int value) {
-      return ComputeTagSize(fieldNumber) + LittleEndian32Size;
-    }
-
-    /// <summary>
-    /// Compute the number of bytes that would be needed to encode an
-    /// sfixed64 field, including the tag.
-    /// </summary>
-    public static int ComputeSFixed64Size(int fieldNumber, long value) {
-      return ComputeTagSize(fieldNumber) + LittleEndian64Size;
-    }
-
-    /// <summary>
-    /// Compute the number of bytes that would be needed to encode an
-    /// sint32 field, including the tag.
-    /// </summary>
-    public static int ComputeSInt32Size(int fieldNumber, int value) {
-      return ComputeTagSize(fieldNumber) + ComputeRawVarint32Size(EncodeZigZag32(value));
-    }
-
-    /// <summary>
-    /// Compute the number of bytes that would be needed to encode an
-    /// sint64 field, including the tag.
-    /// </summary>
-    public static int ComputeSInt64Size(int fieldNumber, long value) {
-      return ComputeTagSize(fieldNumber) + ComputeRawVarint64Size(EncodeZigZag64(value));
-    }
-
-    /// <summary>
-    /// Compute the number of bytes that would be needed to encode a
-    /// double field, including the tag.
-    /// </summary>
-    public static int ComputeDoubleSizeNoTag(double value) {
-      return LittleEndian64Size;
-    }
-
-    /// <summary>
-    /// Compute the number of bytes that would be needed to encode a
-    /// float field, including the tag.
-    /// </summary>
-    public static int ComputeFloatSizeNoTag(float value) {
-      return LittleEndian32Size;
-    }
-
-    /// <summary>
-    /// Compute the number of bytes that would be needed to encode a
-    /// uint64 field, including the tag.
-    /// </summary>
-    [CLSCompliant(false)]
-    public static int ComputeUInt64SizeNoTag(ulong value) {
-      return ComputeRawVarint64Size(value);
-    }
-
-    /// <summary>
-    /// Compute the number of bytes that would be needed to encode an
-    /// int64 field, including the tag.
-    /// </summary>
-    public static int ComputeInt64SizeNoTag(long value) {
-      return ComputeRawVarint64Size((ulong)value);
-    }
-
-    /// <summary>
-    /// Compute the number of bytes that would be needed to encode an
-    /// int32 field, including the tag.
-    /// </summary>
-    public static int ComputeInt32SizeNoTag(int value) {
-      if (value >= 0) {
-        return ComputeRawVarint32Size((uint)value);
-      } else {
-        // Must sign-extend.
-        return 10;
-      }
-    }
-
-    /// <summary>
-    /// Compute the number of bytes that would be needed to encode a
-    /// fixed64 field, including the tag.
-    /// </summary>
-    [CLSCompliant(false)]
-    public static int ComputeFixed64SizeNoTag(ulong value) {
-      return LittleEndian64Size;
-    }
-
-    /// <summary>
-    /// Compute the number of bytes that would be needed to encode a
-    /// fixed32 field, including the tag.
-    /// </summary>
-    [CLSCompliant(false)]
-    public static int ComputeFixed32SizeNoTag(uint value) {
-      return LittleEndian32Size;
-    }
-
-    /// <summary>
-    /// Compute the number of bytes that would be needed to encode a
-    /// bool field, including the tag.
-    /// </summary>
-    public static int ComputeBoolSizeNoTag(bool value) {
-      return 1;
-    }
-
-    /// <summary>
-    /// Compute the number of bytes that would be needed to encode a
-    /// string field, including the tag.
-    /// </summary>
-    public static int ComputeStringSizeNoTag(String value) {
-      int byteArraySize = Encoding.UTF8.GetByteCount(value);
-      return ComputeRawVarint32Size((uint)byteArraySize) +
-             byteArraySize;
-    }
-
-    /// <summary>
-    /// Compute the number of bytes that would be needed to encode a
-    /// group field, including the tag.
-    /// </summary>
-    public static int ComputeGroupSizeNoTag(IMessageLite value) {
-      return value.SerializedSize;
-    }
-
-    /// <summary>
-    /// Compute the number of bytes that would be needed to encode a
-    /// group field represented by an UnknownFieldSet, including the tag.
-    /// </summary>
-    [Obsolete]
-    public static int ComputeUnknownGroupSizeNoTag(IMessageLite value) {
-      return value.SerializedSize;
-    }
-
-    /// <summary>
-    /// Compute the number of bytes that would be needed to encode an
-    /// embedded message field, including the tag.
-    /// </summary>
-    public static int ComputeMessageSizeNoTag(IMessageLite value) {
-      int size = value.SerializedSize;
-      return ComputeRawVarint32Size((uint)size) + size;
-    }
-
-    /// <summary>
-    /// Compute the number of bytes that would be needed to encode a
-    /// bytes field, including the tag.
-    /// </summary>
-    public static int ComputeBytesSizeNoTag(ByteString value) {
-      return ComputeRawVarint32Size((uint)value.Length) +
-             value.Length;
-    }
-
-    /// <summary>
-    /// Compute the number of bytes that would be needed to encode a
-    /// uint32 field, including the tag.
-    /// </summary>
-    [CLSCompliant(false)]
-    public static int ComputeUInt32SizeNoTag(uint value) {
-      return ComputeRawVarint32Size(value);
-    }
-
-    /// <summary>
-    /// Compute the number of bytes that would be needed to encode a
-    /// enum field, including the tag. The caller is responsible for
-    /// converting the enum value to its numeric value.
-    /// </summary>
-    public static int ComputeEnumSizeNoTag(int value) {
-      return ComputeRawVarint32Size((uint)value);
-    }
-
-    /// <summary>
-    /// Compute the number of bytes that would be needed to encode an
-    /// sfixed32 field, including the tag.
-    /// </summary>
-    public static int ComputeSFixed32SizeNoTag(int value) {
-      return LittleEndian32Size;
-    }
-
-    /// <summary>
-    /// Compute the number of bytes that would be needed to encode an
-    /// sfixed64 field, including the tag.
-    /// </summary>
-    public static int ComputeSFixed64SizeNoTag(long value) {
-      return LittleEndian64Size;
-    }
-
-    /// <summary>
-    /// Compute the number of bytes that would be needed to encode an
-    /// sint32 field, including the tag.
-    /// </summary>
-    public static int ComputeSInt32SizeNoTag(int value) {
-      return ComputeRawVarint32Size(EncodeZigZag32(value));
-    }
-
-    /// <summary>
-    /// Compute the number of bytes that would be needed to encode an
-    /// sint64 field, including the tag.
-    /// </summary>
-    public static int ComputeSInt64SizeNoTag(long value) {
-      return ComputeRawVarint64Size(EncodeZigZag64(value));
-    }
-
-    /*
-     * Compute the number of bytes that would be needed to encode a
-     * MessageSet extension to the stream.  For historical reasons,
-     * the wire format differs from normal fields.
-     */
-    /// <summary>
-    /// Compute the number of bytes that would be needed to encode a
-    /// MessageSet extension to the stream. For historical reasons,
-    /// the wire format differs from normal fields.
-    /// </summary>
-    public static int ComputeMessageSetExtensionSize(int fieldNumber, IMessageLite value) {
-      return ComputeTagSize(WireFormat.MessageSetField.Item) * 2 +
-             ComputeUInt32Size(WireFormat.MessageSetField.TypeID, (uint) fieldNumber) +
-             ComputeMessageSize(WireFormat.MessageSetField.Message, value);
-    }
-
-    /// <summary>
-    /// Compute the number of bytes that would be needed to encode an
-    /// unparsed MessageSet extension field to the stream. For
-    /// historical reasons, the wire format differs from normal fields.
-    /// </summary>
-    public static int ComputeRawMessageSetExtensionSize(int fieldNumber, ByteString value) {
-      return ComputeTagSize(WireFormat.MessageSetField.Item) * 2 +
-             ComputeUInt32Size(WireFormat.MessageSetField.TypeID, (uint) fieldNumber) +
-             ComputeBytesSize(WireFormat.MessageSetField.Message, value);
-    }
-
-    /// <summary>
-    /// Compute the number of bytes that would be needed to encode a varint.
-    /// </summary>
-    [CLSCompliant(false)]
-    public static int ComputeRawVarint32Size(uint value) {
-      if ((value & (0xffffffff << 7)) == 0) return 1;
-      if ((value & (0xffffffff << 14)) == 0) return 2;
-      if ((value & (0xffffffff << 21)) == 0) return 3;
-      if ((value & (0xffffffff << 28)) == 0) return 4;
-      return 5;
-    }
-
-    /// <summary>
-    /// Compute the number of bytes that would be needed to encode a varint.
-    /// </summary>
-    [CLSCompliant(false)]
-    public static int ComputeRawVarint64Size(ulong value) {
-      if ((value & (0xffffffffffffffffL << 7)) == 0) return 1;
-      if ((value & (0xffffffffffffffffL << 14)) == 0) return 2;
-      if ((value & (0xffffffffffffffffL << 21)) == 0) return 3;
-      if ((value & (0xffffffffffffffffL << 28)) == 0) return 4;
-      if ((value & (0xffffffffffffffffL << 35)) == 0) return 5;
-      if ((value & (0xffffffffffffffffL << 42)) == 0) return 6;
-      if ((value & (0xffffffffffffffffL << 49)) == 0) return 7;
-      if ((value & (0xffffffffffffffffL << 56)) == 0) return 8;
-      if ((value & (0xffffffffffffffffL << 63)) == 0) return 9;
-      return 10;
-    }
-
-    /// <summary>
-    /// Compute the number of bytes that would be needed to encode a
-    /// field of arbitrary type, including the tag, to the stream.
-    /// </summary>
-    public static int ComputeFieldSize(FieldType fieldType, int fieldNumber, Object value) {
-      switch (fieldType) {
-        case FieldType.Double: return ComputeDoubleSize(fieldNumber, (double)value);
-        case FieldType.Float: return ComputeFloatSize(fieldNumber, (float)value);
-        case FieldType.Int64: return ComputeInt64Size(fieldNumber, (long)value);
-        case FieldType.UInt64: return ComputeUInt64Size(fieldNumber, (ulong)value);
-        case FieldType.Int32: return ComputeInt32Size(fieldNumber, (int)value);
-        case FieldType.Fixed64: return ComputeFixed64Size(fieldNumber, (ulong)value);
-        case FieldType.Fixed32: return ComputeFixed32Size(fieldNumber, (uint)value);
-        case FieldType.Bool: return ComputeBoolSize(fieldNumber, (bool)value);
-        case FieldType.String: return ComputeStringSize(fieldNumber, (string)value);
-        case FieldType.Group: return ComputeGroupSize(fieldNumber, (IMessageLite)value);
-        case FieldType.Message: return ComputeMessageSize(fieldNumber, (IMessageLite)value);
-        case FieldType.Bytes: return ComputeBytesSize(fieldNumber, (ByteString)value);
-        case FieldType.UInt32: return ComputeUInt32Size(fieldNumber, (uint)value);
-        case FieldType.SFixed32: return ComputeSFixed32Size(fieldNumber, (int)value);
-        case FieldType.SFixed64: return ComputeSFixed64Size(fieldNumber, (long)value);
-        case FieldType.SInt32: return ComputeSInt32Size(fieldNumber, (int)value);
-        case FieldType.SInt64: return ComputeSInt64Size(fieldNumber, (long)value);
-        case FieldType.Enum: return ComputeEnumSize(fieldNumber, ((IEnumLite)value).Number);
-        default:
-          throw new ArgumentOutOfRangeException("Invalid field type " + fieldType);
-      }
-    }
-
-    /// <summary>
-    /// Compute the number of bytes that would be needed to encode a
-    /// field of arbitrary type, excluding the tag, to the stream.
-    /// </summary>
-    public static int ComputeFieldSizeNoTag(FieldType fieldType, Object value) {
-      switch (fieldType) {
-        case FieldType.Double: return ComputeDoubleSizeNoTag((double)value);
-        case FieldType.Float: return ComputeFloatSizeNoTag((float)value);
-        case FieldType.Int64: return ComputeInt64SizeNoTag((long)value);
-        case FieldType.UInt64: return ComputeUInt64SizeNoTag((ulong)value);
-        case FieldType.Int32: return ComputeInt32SizeNoTag((int)value);
-        case FieldType.Fixed64: return ComputeFixed64SizeNoTag((ulong)value);
-        case FieldType.Fixed32: return ComputeFixed32SizeNoTag((uint)value);
-        case FieldType.Bool: return ComputeBoolSizeNoTag((bool)value);
-        case FieldType.String: return ComputeStringSizeNoTag((string)value);
-        case FieldType.Group: return ComputeGroupSizeNoTag((IMessageLite)value);
-        case FieldType.Message: return ComputeMessageSizeNoTag((IMessageLite)value);
-        case FieldType.Bytes: return ComputeBytesSizeNoTag((ByteString)value);
-        case FieldType.UInt32: return ComputeUInt32SizeNoTag((uint)value);
-        case FieldType.SFixed32: return ComputeSFixed32SizeNoTag((int)value);
-        case FieldType.SFixed64: return ComputeSFixed64SizeNoTag((long)value);
-        case FieldType.SInt32: return ComputeSInt32SizeNoTag((int)value);
-        case FieldType.SInt64: return ComputeSInt64SizeNoTag((long)value);
-        case FieldType.Enum: return ComputeEnumSizeNoTag(((IEnumLite)value).Number);
-        default:
-          throw new ArgumentOutOfRangeException("Invalid field type " + fieldType);
-      }
-    }
-
-    /// <summary>
-    /// Compute the number of bytes that would be needed to encode a tag.
-    /// </summary>
-    public static int ComputeTagSize(int fieldNumber) {
-      return ComputeRawVarint32Size(WireFormat.MakeTag(fieldNumber, 0));
-    }
-    #endregion
-
-    /// <summary>
-    /// Encode a 32-bit value with ZigZag encoding.
-    /// </summary>
-    /// <remarks>
-    /// ZigZag encodes signed integers into values that can be efficiently
-    /// encoded with varint.  (Otherwise, negative values must be 
-    /// sign-extended to 64 bits to be varint encoded, thus always taking
-    /// 10 bytes on the wire.)
-    /// </remarks>
-    [CLSCompliant(false)]
-    public static uint EncodeZigZag32(int n) {
-      // Note:  the right-shift must be arithmetic
-      return (uint)((n << 1) ^ (n >> 31));
-    }
-
-    /// <summary>
-    /// Encode a 64-bit value with ZigZag encoding.
-    /// </summary>
-    /// <remarks>
-    /// ZigZag encodes signed integers into values that can be efficiently
-    /// encoded with varint.  (Otherwise, negative values must be 
-    /// sign-extended to 64 bits to be varint encoded, thus always taking
-    /// 10 bytes on the wire.)
-    /// </remarks>
-    [CLSCompliant(false)]
-    public static ulong EncodeZigZag64(long n) {
-      return (ulong)((n << 1) ^ (n >> 63));
-    }
-
-    private void RefreshBuffer() {
-      if (output == null) {
-        // We're writing to a single buffer.
-        throw new OutOfSpaceException();
-      }
-
-      // Since we have an output stream, this is our buffer
-      // and buffer offset == 0
-      output.Write(buffer, 0, position);
-      position = 0;
-    }
-
-    /// <summary>
-    /// Indicates that a CodedOutputStream wrapping a flat byte array
-    /// ran out of space.
-    /// </summary>
-    public sealed class OutOfSpaceException : IOException {
-      internal OutOfSpaceException()
-        : base("CodedOutputStream was writing to a flat byte array and ran out of space.") {
-      }
-    }
-
-    public void Flush() {
-      if (output != null) {
-        RefreshBuffer();
-      }
-    }
-
-    /// <summary>
-    /// Verifies that SpaceLeft returns zero. It's common to create a byte array
-    /// that is exactly big enough to hold a message, then write to it with
-    /// a CodedOutputStream. Calling CheckNoSpaceLeft after writing verifies that
-    /// the message was actually as big as expected, which can help bugs.
-    /// </summary>
-    public void CheckNoSpaceLeft() {
-      if (SpaceLeft != 0) {
-        throw new InvalidOperationException("Did not write as much data as expected.");
-      }
-    }
-
-    /// <summary>
-    /// If writing to a flat array, returns the space left in the array. Otherwise,
-    /// throws an InvalidOperationException.
-    /// </summary>
-    public int SpaceLeft {
-      get {
-        if (output == null) {
-          return limit - position;
-        } else {
-          throw new InvalidOperationException(
-            "SpaceLeft can only be called on CodedOutputStreams that are " +
-            "writing to a flat array.");
-        }
-      }
-    }
-  }
-}
+#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.IO;

+using System.Text;

+using Google.ProtocolBuffers.Descriptors;

+

+namespace Google.ProtocolBuffers

+{

+    /// <summary>

+    /// Encodes and writes protocol message fields.

+    /// </summary>

+    /// <remarks>

+    /// This class contains two kinds of methods:  methods that write specific

+    /// protocol message constructs and field types (e.g. WriteTag and

+    /// WriteInt32) and methods that write low-level values (e.g.

+    /// WriteRawVarint32 and WriteRawBytes).  If you are writing encoded protocol

+    /// messages, you should use the former methods, but if you are writing some

+    /// other format of your own design, use the latter. The names of the former

+    /// methods are taken from the protocol buffer type names, not .NET types.

+    /// (Hence WriteFloat instead of WriteSingle, and WriteBool instead of WriteBoolean.)

+    /// </remarks>

+    public sealed class CodedOutputStream

+    {

+        /// <summary>

+        /// The buffer size used by CreateInstance(Stream).

+        /// </summary>

+        public static readonly int DefaultBufferSize = 4096;

+

+        private readonly byte[] buffer;

+        private readonly int limit;

+        private int position;

+        private readonly Stream output;

+

+        #region Construction

+

+        private CodedOutputStream(byte[] buffer, int offset, int length)

+        {

+            this.output = null;

+            this.buffer = buffer;

+            this.position = offset;

+            this.limit = offset + length;

+        }

+

+        private CodedOutputStream(Stream output, byte[] buffer)

+        {

+            this.output = output;

+            this.buffer = buffer;

+            this.position = 0;

+            this.limit = buffer.Length;

+        }

+

+        /// <summary>

+        /// Creates a new CodedOutputStream which write to the given stream.

+        /// </summary>

+        public static CodedOutputStream CreateInstance(Stream output)

+        {

+            return CreateInstance(output, DefaultBufferSize);

+        }

+

+        /// <summary>

+        /// Creates a new CodedOutputStream which write to the given stream and uses

+        /// the specified buffer size.

+        /// </summary>

+        public static CodedOutputStream CreateInstance(Stream output, int bufferSize)

+        {

+            return new CodedOutputStream(output, new byte[bufferSize]);

+        }

+

+        /// <summary>

+        /// Creates a new CodedOutputStream that writes directly to the given

+        /// byte array. If more bytes are written than fit in the array,

+        /// OutOfSpaceException will be thrown.

+        /// </summary>

+        public static CodedOutputStream CreateInstance(byte[] flatArray)

+        {

+            return CreateInstance(flatArray, 0, flatArray.Length);

+        }

+

+        /// <summary>

+        /// Creates a new CodedOutputStream that writes directly to the given

+        /// byte array slice. If more bytes are written than fit in the array,

+        /// OutOfSpaceException will be thrown.

+        /// </summary>

+        public static CodedOutputStream CreateInstance(byte[] flatArray, int offset, int length)

+        {

+            return new CodedOutputStream(flatArray, offset, length);

+        }

+

+        #endregion

+

+        #region Writing of tags etc

+

+        /// <summary>

+        /// Writes a double field value, including tag, to the stream.

+        /// </summary>

+        public void WriteDouble(int fieldNumber, double value)

+        {

+            WriteTag(fieldNumber, WireFormat.WireType.Fixed64);

+            WriteDoubleNoTag(value);

+        }

+

+        /// <summary>

+        /// Writes a float field value, including tag, to the stream.

+        /// </summary>

+        public void WriteFloat(int fieldNumber, float value)

+        {

+            WriteTag(fieldNumber, WireFormat.WireType.Fixed32);

+            WriteFloatNoTag(value);

+        }

+

+        /// <summary>

+        /// Writes a uint64 field value, including tag, to the stream.

+        /// </summary>

+        [CLSCompliant(false)]

+        public void WriteUInt64(int fieldNumber, ulong value)

+        {

+            WriteTag(fieldNumber, WireFormat.WireType.Varint);

+            WriteRawVarint64(value);

+        }

+

+        /// <summary>

+        /// Writes an int64 field value, including tag, to the stream.

+        /// </summary>

+        public void WriteInt64(int fieldNumber, long value)

+        {

+            WriteTag(fieldNumber, WireFormat.WireType.Varint);

+            WriteRawVarint64((ulong) value);

+        }

+

+        /// <summary>

+        /// Writes an int32 field value, including tag, to the stream.

+        /// </summary>

+        public void WriteInt32(int fieldNumber, int value)

+        {

+            WriteTag(fieldNumber, WireFormat.WireType.Varint);

+            if (value >= 0)

+            {

+                WriteRawVarint32((uint) value);

+            }

+            else

+            {

+                // Must sign-extend.

+                WriteRawVarint64((ulong) value);

+            }

+        }

+

+        /// <summary>

+        /// Writes a fixed64 field value, including tag, to the stream.

+        /// </summary>

+        [CLSCompliant(false)]

+        public void WriteFixed64(int fieldNumber, ulong value)

+        {

+            WriteTag(fieldNumber, WireFormat.WireType.Fixed64);

+            WriteRawLittleEndian64(value);

+        }

+

+        /// <summary>

+        /// Writes a fixed32 field value, including tag, to the stream.

+        /// </summary>

+        [CLSCompliant(false)]

+        public void WriteFixed32(int fieldNumber, uint value)

+        {

+            WriteTag(fieldNumber, WireFormat.WireType.Fixed32);

+            WriteRawLittleEndian32(value);

+        }

+

+        /// <summary>

+        /// Writes a bool field value, including tag, to the stream.

+        /// </summary>

+        public void WriteBool(int fieldNumber, bool value)

+        {

+            WriteTag(fieldNumber, WireFormat.WireType.Varint);

+            WriteRawByte(value ? (byte) 1 : (byte) 0);

+        }

+

+        /// <summary>

+        /// Writes a string field value, including tag, to the stream.

+        /// </summary>

+        public void WriteString(int fieldNumber, string value)

+        {

+            WriteTag(fieldNumber, WireFormat.WireType.LengthDelimited);

+            // Optimise the case where we have enough space to write

+            // the string directly to the buffer, which should be common.

+            int length = Encoding.UTF8.GetByteCount(value);

+            WriteRawVarint32((uint) length);

+            if (limit - position >= length)

+            {

+                Encoding.UTF8.GetBytes(value, 0, value.Length, buffer, position);

+                position += length;

+            }

+            else

+            {

+                byte[] bytes = Encoding.UTF8.GetBytes(value);

+                WriteRawBytes(bytes);

+            }

+        }

+

+        /// <summary>

+        /// Writes a group field value, including tag, to the stream.

+        /// </summary>

+        public void WriteGroup(int fieldNumber, IMessageLite value)

+        {

+            WriteTag(fieldNumber, WireFormat.WireType.StartGroup);

+            value.WriteTo(this);

+            WriteTag(fieldNumber, WireFormat.WireType.EndGroup);

+        }

+

+        [Obsolete]

+        public void WriteUnknownGroup(int fieldNumber, IMessageLite value)

+        {

+            WriteTag(fieldNumber, WireFormat.WireType.StartGroup);

+            value.WriteTo(this);

+            WriteTag(fieldNumber, WireFormat.WireType.EndGroup);

+        }

+

+        public void WriteMessage(int fieldNumber, IMessageLite value)

+        {

+            WriteTag(fieldNumber, WireFormat.WireType.LengthDelimited);

+            WriteRawVarint32((uint) value.SerializedSize);

+            value.WriteTo(this);

+        }

+

+        public void WriteBytes(int fieldNumber, ByteString value)

+        {

+            // TODO(jonskeet): Optimise this! (No need to copy the bytes twice.)

+            WriteTag(fieldNumber, WireFormat.WireType.LengthDelimited);

+            byte[] bytes = value.ToByteArray();

+            WriteRawVarint32((uint) bytes.Length);

+            WriteRawBytes(bytes);

+        }

+

+        [CLSCompliant(false)]

+        public void WriteUInt32(int fieldNumber, uint value)

+        {

+            WriteTag(fieldNumber, WireFormat.WireType.Varint);

+            WriteRawVarint32(value);

+        }

+

+        public void WriteEnum(int fieldNumber, int value)

+        {

+            WriteTag(fieldNumber, WireFormat.WireType.Varint);

+            WriteRawVarint32((uint) value);

+        }

+

+        public void WriteSFixed32(int fieldNumber, int value)

+        {

+            WriteTag(fieldNumber, WireFormat.WireType.Fixed32);

+            WriteRawLittleEndian32((uint) value);

+        }

+

+        public void WriteSFixed64(int fieldNumber, long value)

+        {

+            WriteTag(fieldNumber, WireFormat.WireType.Fixed64);

+            WriteRawLittleEndian64((ulong) value);

+        }

+

+        public void WriteSInt32(int fieldNumber, int value)

+        {

+            WriteTag(fieldNumber, WireFormat.WireType.Varint);

+            WriteRawVarint32(EncodeZigZag32(value));

+        }

+

+        public void WriteSInt64(int fieldNumber, long value)

+        {

+            WriteTag(fieldNumber, WireFormat.WireType.Varint);

+            WriteRawVarint64(EncodeZigZag64(value));

+        }

+

+        public void WriteMessageSetExtension(int fieldNumber, IMessageLite value)

+        {

+            WriteTag(WireFormat.MessageSetField.Item, WireFormat.WireType.StartGroup);

+            WriteUInt32(WireFormat.MessageSetField.TypeID, (uint) fieldNumber);

+            WriteMessage(WireFormat.MessageSetField.Message, value);

+            WriteTag(WireFormat.MessageSetField.Item, WireFormat.WireType.EndGroup);

+        }

+

+        public void WriteRawMessageSetExtension(int fieldNumber, ByteString value)

+        {

+            WriteTag(WireFormat.MessageSetField.Item, WireFormat.WireType.StartGroup);

+            WriteUInt32(WireFormat.MessageSetField.TypeID, (uint) fieldNumber);

+            WriteBytes(WireFormat.MessageSetField.Message, value);

+            WriteTag(WireFormat.MessageSetField.Item, WireFormat.WireType.EndGroup);

+        }

+

+        public void WriteField(FieldType fieldType, int fieldNumber, object value)

+        {

+            switch (fieldType)

+            {

+                case FieldType.Double:

+                    WriteDouble(fieldNumber, (double) value);

+                    break;

+                case FieldType.Float:

+                    WriteFloat(fieldNumber, (float) value);

+                    break;

+                case FieldType.Int64:

+                    WriteInt64(fieldNumber, (long) value);

+                    break;

+                case FieldType.UInt64:

+                    WriteUInt64(fieldNumber, (ulong) value);

+                    break;

+                case FieldType.Int32:

+                    WriteInt32(fieldNumber, (int) value);

+                    break;

+                case FieldType.Fixed64:

+                    WriteFixed64(fieldNumber, (ulong) value);

+                    break;

+                case FieldType.Fixed32:

+                    WriteFixed32(fieldNumber, (uint) value);

+                    break;

+                case FieldType.Bool:

+                    WriteBool(fieldNumber, (bool) value);

+                    break;

+                case FieldType.String:

+                    WriteString(fieldNumber, (string) value);

+                    break;

+                case FieldType.Group:

+                    WriteGroup(fieldNumber, (IMessageLite) value);

+                    break;

+                case FieldType.Message:

+                    WriteMessage(fieldNumber, (IMessageLite) value);

+                    break;

+                case FieldType.Bytes:

+                    WriteBytes(fieldNumber, (ByteString) value);

+                    break;

+                case FieldType.UInt32:

+                    WriteUInt32(fieldNumber, (uint) value);

+                    break;

+                case FieldType.SFixed32:

+                    WriteSFixed32(fieldNumber, (int) value);

+                    break;

+                case FieldType.SFixed64:

+                    WriteSFixed64(fieldNumber, (long) value);

+                    break;

+                case FieldType.SInt32:

+                    WriteSInt32(fieldNumber, (int) value);

+                    break;

+                case FieldType.SInt64:

+                    WriteSInt64(fieldNumber, (long) value);

+                    break;

+                case FieldType.Enum:

+                    WriteEnum(fieldNumber, ((IEnumLite) value).Number);

+                    break;

+            }

+        }

+

+        public void WriteFieldNoTag(FieldType fieldType, object value)

+        {

+            switch (fieldType)

+            {

+                case FieldType.Double:

+                    WriteDoubleNoTag((double) value);

+                    break;

+                case FieldType.Float:

+                    WriteFloatNoTag((float) value);

+                    break;

+                case FieldType.Int64:

+                    WriteInt64NoTag((long) value);

+                    break;

+                case FieldType.UInt64:

+                    WriteUInt64NoTag((ulong) value);

+                    break;

+                case FieldType.Int32:

+                    WriteInt32NoTag((int) value);

+                    break;

+                case FieldType.Fixed64:

+                    WriteFixed64NoTag((ulong) value);

+                    break;

+                case FieldType.Fixed32:

+                    WriteFixed32NoTag((uint) value);

+                    break;

+                case FieldType.Bool:

+                    WriteBoolNoTag((bool) value);

+                    break;

+                case FieldType.String:

+                    WriteStringNoTag((string) value);

+                    break;

+                case FieldType.Group:

+                    WriteGroupNoTag((IMessageLite) value);

+                    break;

+                case FieldType.Message:

+                    WriteMessageNoTag((IMessageLite) value);

+                    break;

+                case FieldType.Bytes:

+                    WriteBytesNoTag((ByteString) value);

+                    break;

+                case FieldType.UInt32:

+                    WriteUInt32NoTag((uint) value);

+                    break;

+                case FieldType.SFixed32:

+                    WriteSFixed32NoTag((int) value);

+                    break;

+                case FieldType.SFixed64:

+                    WriteSFixed64NoTag((long) value);

+                    break;

+                case FieldType.SInt32:

+                    WriteSInt32NoTag((int) value);

+                    break;

+                case FieldType.SInt64:

+                    WriteSInt64NoTag((long) value);

+                    break;

+                case FieldType.Enum:

+                    WriteEnumNoTag(((IEnumLite) value).Number);

+                    break;

+            }

+        }

+

+        #endregion

+

+        #region Writing of values without tags

+

+        /// <summary>

+        /// Writes a double field value, including tag, to the stream.

+        /// </summary>

+        public void WriteDoubleNoTag(double value)

+        {

+            // TODO(jonskeet): Test this on different endiannesses

+#if SILVERLIGHT2 || COMPACT_FRAMEWORK_35

+            byte[] bytes = BitConverter.GetBytes(value);

+            WriteRawBytes(bytes, 0, 8);

+#else

+      WriteRawLittleEndian64((ulong)BitConverter.DoubleToInt64Bits(value));

+#endif

+        }

+

+        /// <summary>

+        /// Writes a float field value, without a tag, to the stream.

+        /// </summary>

+        public void WriteFloatNoTag(float value)

+        {

+            // TODO(jonskeet): Test this on different endiannesses

+            byte[] rawBytes = BitConverter.GetBytes(value);

+            uint asInteger = BitConverter.ToUInt32(rawBytes, 0);

+            WriteRawLittleEndian32(asInteger);

+        }

+

+        /// <summary>

+        /// Writes a uint64 field value, without a tag, to the stream.

+        /// </summary>

+        [CLSCompliant(false)]

+        public void WriteUInt64NoTag(ulong value)

+        {

+            WriteRawVarint64(value);

+        }

+

+        /// <summary>

+        /// Writes an int64 field value, without a tag, to the stream.

+        /// </summary>

+        public void WriteInt64NoTag(long value)

+        {

+            WriteRawVarint64((ulong) value);

+        }

+

+        /// <summary>

+        /// Writes an int32 field value, without a tag, to the stream.

+        /// </summary>

+        public void WriteInt32NoTag(int value)

+        {

+            if (value >= 0)

+            {

+                WriteRawVarint32((uint) value);

+            }

+            else

+            {

+                // Must sign-extend.

+                WriteRawVarint64((ulong) value);

+            }

+        }

+

+        /// <summary>

+        /// Writes a fixed64 field value, without a tag, to the stream.

+        /// </summary>

+        [CLSCompliant(false)]

+        public void WriteFixed64NoTag(ulong value)

+        {

+            WriteRawLittleEndian64(value);

+        }

+

+        /// <summary>

+        /// Writes a fixed32 field value, without a tag, to the stream.

+        /// </summary>

+        [CLSCompliant(false)]

+        public void WriteFixed32NoTag(uint value)

+        {

+            WriteRawLittleEndian32(value);

+        }

+

+        /// <summary>

+        /// Writes a bool field value, without a tag, to the stream.

+        /// </summary>

+        public void WriteBoolNoTag(bool value)

+        {

+            WriteRawByte(value ? (byte) 1 : (byte) 0);

+        }

+

+        /// <summary>

+        /// Writes a string field value, without a tag, to the stream.

+        /// </summary>

+        public void WriteStringNoTag(string value)

+        {

+            // Optimise the case where we have enough space to write

+            // the string directly to the buffer, which should be common.

+            int length = Encoding.UTF8.GetByteCount(value);

+            WriteRawVarint32((uint) length);

+            if (limit - position >= length)

+            {

+                Encoding.UTF8.GetBytes(value, 0, value.Length, buffer, position);

+                position += length;

+            }

+            else

+            {

+                byte[] bytes = Encoding.UTF8.GetBytes(value);

+                WriteRawBytes(bytes);

+            }

+        }

+

+        /// <summary>

+        /// Writes a group field value, without a tag, to the stream.

+        /// </summary>

+        public void WriteGroupNoTag(IMessageLite value)

+        {

+            value.WriteTo(this);

+        }

+

+        public void WriteMessageNoTag(IMessageLite value)

+        {

+            WriteRawVarint32((uint) value.SerializedSize);

+            value.WriteTo(this);

+        }

+

+        public void WriteBytesNoTag(ByteString value)

+        {

+            // TODO(jonskeet): Optimise this! (No need to copy the bytes twice.)

+            byte[] bytes = value.ToByteArray();

+            WriteRawVarint32((uint) bytes.Length);

+            WriteRawBytes(bytes);

+        }

+

+        [CLSCompliant(false)]

+        public void WriteUInt32NoTag(uint value)

+        {

+            WriteRawVarint32(value);

+        }

+

+        public void WriteEnumNoTag(int value)

+        {

+            WriteRawVarint32((uint) value);

+        }

+

+        public void WriteSFixed32NoTag(int value)

+        {

+            WriteRawLittleEndian32((uint) value);

+        }

+

+        public void WriteSFixed64NoTag(long value)

+        {

+            WriteRawLittleEndian64((ulong) value);

+        }

+

+        public void WriteSInt32NoTag(int value)

+        {

+            WriteRawVarint32(EncodeZigZag32(value));

+        }

+

+        public void WriteSInt64NoTag(long value)

+        {

+            WriteRawVarint64(EncodeZigZag64(value));

+        }

+

+        #endregion

+

+        #region Underlying writing primitives

+

+        /// <summary>

+        /// Encodes and writes a tag.

+        /// </summary>

+        [CLSCompliant(false)]

+        public void WriteTag(int fieldNumber, WireFormat.WireType type)

+        {

+            WriteRawVarint32(WireFormat.MakeTag(fieldNumber, type));

+        }

+

+        private void SlowWriteRawVarint32(uint value)

+        {

+            while (true)

+            {

+                if ((value & ~0x7F) == 0)

+                {

+                    WriteRawByte(value);

+                    return;

+                }

+                else

+                {

+                    WriteRawByte((value & 0x7F) | 0x80);

+                    value >>= 7;

+                }

+            }

+        }

+

+        /// <summary>

+        /// Writes a 32 bit value as a varint. The fast route is taken when

+        /// there's enough buffer space left to whizz through without checking

+        /// for each byte; otherwise, we resort to calling WriteRawByte each time.

+        /// </summary>

+        [CLSCompliant(false)]

+        public void WriteRawVarint32(uint value)

+        {

+            if (position + 5 > limit)

+            {

+                SlowWriteRawVarint32(value);

+                return;

+            }

+

+            while (true)

+            {

+                if ((value & ~0x7F) == 0)

+                {

+                    buffer[position++] = (byte) value;

+                    return;

+                }

+                else

+                {

+                    buffer[position++] = (byte) ((value & 0x7F) | 0x80);

+                    value >>= 7;

+                }

+            }

+        }

+

+        [CLSCompliant(false)]

+        public void WriteRawVarint64(ulong value)

+        {

+            while (true)

+            {

+                if ((value & ~0x7FUL) == 0)

+                {

+                    WriteRawByte((uint) value);

+                    return;

+                }

+                else

+                {

+                    WriteRawByte(((uint) value & 0x7F) | 0x80);

+                    value >>= 7;

+                }

+            }

+        }

+

+        [CLSCompliant(false)]

+        public void WriteRawLittleEndian32(uint value)

+        {

+            WriteRawByte((byte) value);

+            WriteRawByte((byte) (value >> 8));

+            WriteRawByte((byte) (value >> 16));

+            WriteRawByte((byte) (value >> 24));

+        }

+

+        [CLSCompliant(false)]

+        public void WriteRawLittleEndian64(ulong value)

+        {

+            WriteRawByte((byte) value);

+            WriteRawByte((byte) (value >> 8));

+            WriteRawByte((byte) (value >> 16));

+            WriteRawByte((byte) (value >> 24));

+            WriteRawByte((byte) (value >> 32));

+            WriteRawByte((byte) (value >> 40));

+            WriteRawByte((byte) (value >> 48));

+            WriteRawByte((byte) (value >> 56));

+        }

+

+        public void WriteRawByte(byte value)

+        {

+            if (position == limit)

+            {

+                RefreshBuffer();

+            }

+

+            buffer[position++] = value;

+        }

+

+        [CLSCompliant(false)]

+        public void WriteRawByte(uint value)

+        {

+            WriteRawByte((byte) value);

+        }

+

+        /// <summary>

+        /// Writes out an array of bytes.

+        /// </summary>

+        public void WriteRawBytes(byte[] value)

+        {

+            WriteRawBytes(value, 0, value.Length);

+        }

+

+        /// <summary>

+        /// Writes out part of an array of bytes.

+        /// </summary>

+        public void WriteRawBytes(byte[] value, int offset, int length)

+        {

+            if (limit - position >= length)

+            {

+                Array.Copy(value, offset, buffer, position, length);

+                // We have room in the current buffer.

+                position += length;

+            }

+            else

+            {

+                // Write extends past current buffer.  Fill the rest of this buffer and

+                // flush.

+                int bytesWritten = limit - position;

+                Array.Copy(value, offset, buffer, position, bytesWritten);

+                offset += bytesWritten;

+                length -= bytesWritten;

+                position = limit;

+                RefreshBuffer();

+

+                // Now deal with the rest.

+                // Since we have an output stream, this is our buffer

+                // and buffer offset == 0

+                if (length <= limit)

+                {

+                    // Fits in new buffer.

+                    Array.Copy(value, offset, buffer, 0, length);

+                    position = length;

+                }

+                else

+                {

+                    // Write is very big.  Let's do it all at once.

+                    output.Write(value, offset, length);

+                }

+            }

+        }

+

+        #endregion

+

+        #region Size computations

+

+        private const int LittleEndian64Size = 8;

+        private const int LittleEndian32Size = 4;

+

+        /// <summary>

+        /// Compute the number of bytes that would be needed to encode a

+        /// double field, including the tag.

+        /// </summary>

+        public static int ComputeDoubleSize(int fieldNumber, double value)

+        {

+            return ComputeTagSize(fieldNumber) + LittleEndian64Size;

+        }

+

+        /// <summary>

+        /// Compute the number of bytes that would be needed to encode a

+        /// float field, including the tag.

+        /// </summary>

+        public static int ComputeFloatSize(int fieldNumber, float value)

+        {

+            return ComputeTagSize(fieldNumber) + LittleEndian32Size;

+        }

+

+        /// <summary>

+        /// Compute the number of bytes that would be needed to encode a

+        /// uint64 field, including the tag.

+        /// </summary>

+        [CLSCompliant(false)]

+        public static int ComputeUInt64Size(int fieldNumber, ulong value)

+        {

+            return ComputeTagSize(fieldNumber) + ComputeRawVarint64Size(value);

+        }

+

+        /// <summary>

+        /// Compute the number of bytes that would be needed to encode an

+        /// int64 field, including the tag.

+        /// </summary>

+        public static int ComputeInt64Size(int fieldNumber, long value)

+        {

+            return ComputeTagSize(fieldNumber) + ComputeRawVarint64Size((ulong) value);

+        }

+

+        /// <summary>

+        /// Compute the number of bytes that would be needed to encode an

+        /// int32 field, including the tag.

+        /// </summary>

+        public static int ComputeInt32Size(int fieldNumber, int value)

+        {

+            if (value >= 0)

+            {

+                return ComputeTagSize(fieldNumber) + ComputeRawVarint32Size((uint) value);

+            }

+            else

+            {

+                // Must sign-extend.

+                return ComputeTagSize(fieldNumber) + 10;

+            }

+        }

+

+        /// <summary>

+        /// Compute the number of bytes that would be needed to encode a

+        /// fixed64 field, including the tag.

+        /// </summary>

+        [CLSCompliant(false)]

+        public static int ComputeFixed64Size(int fieldNumber, ulong value)

+        {

+            return ComputeTagSize(fieldNumber) + LittleEndian64Size;

+        }

+

+        /// <summary>

+        /// Compute the number of bytes that would be needed to encode a

+        /// fixed32 field, including the tag.

+        /// </summary>

+        [CLSCompliant(false)]

+        public static int ComputeFixed32Size(int fieldNumber, uint value)

+        {

+            return ComputeTagSize(fieldNumber) + LittleEndian32Size;

+        }

+

+        /// <summary>

+        /// Compute the number of bytes that would be needed to encode a

+        /// bool field, including the tag.

+        /// </summary>

+        public static int ComputeBoolSize(int fieldNumber, bool value)

+        {

+            return ComputeTagSize(fieldNumber) + 1;

+        }

+

+        /// <summary>

+        /// Compute the number of bytes that would be needed to encode a

+        /// string field, including the tag.

+        /// </summary>

+        public static int ComputeStringSize(int fieldNumber, String value)

+        {

+            int byteArraySize = Encoding.UTF8.GetByteCount(value);

+            return ComputeTagSize(fieldNumber) +

+                   ComputeRawVarint32Size((uint) byteArraySize) +

+                   byteArraySize;

+        }

+

+        /// <summary>

+        /// Compute the number of bytes that would be needed to encode a

+        /// group field, including the tag.

+        /// </summary>

+        public static int ComputeGroupSize(int fieldNumber, IMessageLite value)

+        {

+            return ComputeTagSize(fieldNumber)*2 + value.SerializedSize;

+        }

+

+        /// <summary>

+        /// Compute the number of bytes that would be needed to encode a

+        /// group field represented by an UnknownFieldSet, including the tag.

+        /// </summary>

+        [Obsolete]

+        public static int ComputeUnknownGroupSize(int fieldNumber,

+                                                  IMessageLite value)

+        {

+            return ComputeTagSize(fieldNumber)*2 + value.SerializedSize;

+        }

+

+        /// <summary>

+        /// Compute the number of bytes that would be needed to encode an

+        /// embedded message field, including the tag.

+        /// </summary>

+        public static int ComputeMessageSize(int fieldNumber, IMessageLite value)

+        {

+            int size = value.SerializedSize;

+            return ComputeTagSize(fieldNumber) + ComputeRawVarint32Size((uint) size) + size;

+        }

+

+        /// <summary>

+        /// Compute the number of bytes that would be needed to encode a

+        /// bytes field, including the tag.

+        /// </summary>

+        public static int ComputeBytesSize(int fieldNumber, ByteString value)

+        {

+            return ComputeTagSize(fieldNumber) +

+                   ComputeRawVarint32Size((uint) value.Length) +

+                   value.Length;

+        }

+

+        /// <summary>

+        /// Compute the number of bytes that would be needed to encode a

+        /// uint32 field, including the tag.

+        /// </summary>

+        [CLSCompliant(false)]

+        public static int ComputeUInt32Size(int fieldNumber, uint value)

+        {

+            return ComputeTagSize(fieldNumber) + ComputeRawVarint32Size(value);

+        }

+

+        /// <summary>

+        /// Compute the number of bytes that would be needed to encode a

+        /// enum field, including the tag. The caller is responsible for

+        /// converting the enum value to its numeric value.

+        /// </summary>

+        public static int ComputeEnumSize(int fieldNumber, int value)

+        {

+            return ComputeTagSize(fieldNumber) + ComputeRawVarint32Size((uint) value);

+        }

+

+        /// <summary>

+        /// Compute the number of bytes that would be needed to encode an

+        /// sfixed32 field, including the tag.

+        /// </summary>

+        public static int ComputeSFixed32Size(int fieldNumber, int value)

+        {

+            return ComputeTagSize(fieldNumber) + LittleEndian32Size;

+        }

+

+        /// <summary>

+        /// Compute the number of bytes that would be needed to encode an

+        /// sfixed64 field, including the tag.

+        /// </summary>

+        public static int ComputeSFixed64Size(int fieldNumber, long value)

+        {

+            return ComputeTagSize(fieldNumber) + LittleEndian64Size;

+        }

+

+        /// <summary>

+        /// Compute the number of bytes that would be needed to encode an

+        /// sint32 field, including the tag.

+        /// </summary>

+        public static int ComputeSInt32Size(int fieldNumber, int value)

+        {

+            return ComputeTagSize(fieldNumber) + ComputeRawVarint32Size(EncodeZigZag32(value));

+        }

+

+        /// <summary>

+        /// Compute the number of bytes that would be needed to encode an

+        /// sint64 field, including the tag.

+        /// </summary>

+        public static int ComputeSInt64Size(int fieldNumber, long value)

+        {

+            return ComputeTagSize(fieldNumber) + ComputeRawVarint64Size(EncodeZigZag64(value));

+        }

+

+        /// <summary>

+        /// Compute the number of bytes that would be needed to encode a

+        /// double field, including the tag.

+        /// </summary>

+        public static int ComputeDoubleSizeNoTag(double value)

+        {

+            return LittleEndian64Size;

+        }

+

+        /// <summary>

+        /// Compute the number of bytes that would be needed to encode a

+        /// float field, including the tag.

+        /// </summary>

+        public static int ComputeFloatSizeNoTag(float value)

+        {

+            return LittleEndian32Size;

+        }

+

+        /// <summary>

+        /// Compute the number of bytes that would be needed to encode a

+        /// uint64 field, including the tag.

+        /// </summary>

+        [CLSCompliant(false)]

+        public static int ComputeUInt64SizeNoTag(ulong value)

+        {

+            return ComputeRawVarint64Size(value);

+        }

+

+        /// <summary>

+        /// Compute the number of bytes that would be needed to encode an

+        /// int64 field, including the tag.

+        /// </summary>

+        public static int ComputeInt64SizeNoTag(long value)

+        {

+            return ComputeRawVarint64Size((ulong) value);

+        }

+

+        /// <summary>

+        /// Compute the number of bytes that would be needed to encode an

+        /// int32 field, including the tag.

+        /// </summary>

+        public static int ComputeInt32SizeNoTag(int value)

+        {

+            if (value >= 0)

+            {

+                return ComputeRawVarint32Size((uint) value);

+            }

+            else

+            {

+                // Must sign-extend.

+                return 10;

+            }

+        }

+

+        /// <summary>

+        /// Compute the number of bytes that would be needed to encode a

+        /// fixed64 field, including the tag.

+        /// </summary>

+        [CLSCompliant(false)]

+        public static int ComputeFixed64SizeNoTag(ulong value)

+        {

+            return LittleEndian64Size;

+        }

+

+        /// <summary>

+        /// Compute the number of bytes that would be needed to encode a

+        /// fixed32 field, including the tag.

+        /// </summary>

+        [CLSCompliant(false)]

+        public static int ComputeFixed32SizeNoTag(uint value)

+        {

+            return LittleEndian32Size;

+        }

+

+        /// <summary>

+        /// Compute the number of bytes that would be needed to encode a

+        /// bool field, including the tag.

+        /// </summary>

+        public static int ComputeBoolSizeNoTag(bool value)

+        {

+            return 1;

+        }

+

+        /// <summary>

+        /// Compute the number of bytes that would be needed to encode a

+        /// string field, including the tag.

+        /// </summary>

+        public static int ComputeStringSizeNoTag(String value)

+        {

+            int byteArraySize = Encoding.UTF8.GetByteCount(value);

+            return ComputeRawVarint32Size((uint) byteArraySize) +

+                   byteArraySize;

+        }

+

+        /// <summary>

+        /// Compute the number of bytes that would be needed to encode a

+        /// group field, including the tag.

+        /// </summary>

+        public static int ComputeGroupSizeNoTag(IMessageLite value)

+        {

+            return value.SerializedSize;

+        }

+

+        /// <summary>

+        /// Compute the number of bytes that would be needed to encode a

+        /// group field represented by an UnknownFieldSet, including the tag.

+        /// </summary>

+        [Obsolete]

+        public static int ComputeUnknownGroupSizeNoTag(IMessageLite value)

+        {

+            return value.SerializedSize;

+        }

+

+        /// <summary>

+        /// Compute the number of bytes that would be needed to encode an

+        /// embedded message field, including the tag.

+        /// </summary>

+        public static int ComputeMessageSizeNoTag(IMessageLite value)

+        {

+            int size = value.SerializedSize;

+            return ComputeRawVarint32Size((uint) size) + size;

+        }

+

+        /// <summary>

+        /// Compute the number of bytes that would be needed to encode a

+        /// bytes field, including the tag.

+        /// </summary>

+        public static int ComputeBytesSizeNoTag(ByteString value)

+        {

+            return ComputeRawVarint32Size((uint) value.Length) +

+                   value.Length;

+        }

+

+        /// <summary>

+        /// Compute the number of bytes that would be needed to encode a

+        /// uint32 field, including the tag.

+        /// </summary>

+        [CLSCompliant(false)]

+        public static int ComputeUInt32SizeNoTag(uint value)

+        {

+            return ComputeRawVarint32Size(value);

+        }

+

+        /// <summary>

+        /// Compute the number of bytes that would be needed to encode a

+        /// enum field, including the tag. The caller is responsible for

+        /// converting the enum value to its numeric value.

+        /// </summary>

+        public static int ComputeEnumSizeNoTag(int value)

+        {

+            return ComputeRawVarint32Size((uint) value);

+        }

+

+        /// <summary>

+        /// Compute the number of bytes that would be needed to encode an

+        /// sfixed32 field, including the tag.

+        /// </summary>

+        public static int ComputeSFixed32SizeNoTag(int value)

+        {

+            return LittleEndian32Size;

+        }

+

+        /// <summary>

+        /// Compute the number of bytes that would be needed to encode an

+        /// sfixed64 field, including the tag.

+        /// </summary>

+        public static int ComputeSFixed64SizeNoTag(long value)

+        {

+            return LittleEndian64Size;

+        }

+

+        /// <summary>

+        /// Compute the number of bytes that would be needed to encode an

+        /// sint32 field, including the tag.

+        /// </summary>

+        public static int ComputeSInt32SizeNoTag(int value)

+        {

+            return ComputeRawVarint32Size(EncodeZigZag32(value));

+        }

+

+        /// <summary>

+        /// Compute the number of bytes that would be needed to encode an

+        /// sint64 field, including the tag.

+        /// </summary>

+        public static int ComputeSInt64SizeNoTag(long value)

+        {

+            return ComputeRawVarint64Size(EncodeZigZag64(value));

+        }

+

+        /*

+     * Compute the number of bytes that would be needed to encode a

+     * MessageSet extension to the stream.  For historical reasons,

+     * the wire format differs from normal fields.

+     */

+

+        /// <summary>

+        /// Compute the number of bytes that would be needed to encode a

+        /// MessageSet extension to the stream. For historical reasons,

+        /// the wire format differs from normal fields.

+        /// </summary>

+        public static int ComputeMessageSetExtensionSize(int fieldNumber, IMessageLite value)

+        {

+            return ComputeTagSize(WireFormat.MessageSetField.Item)*2 +

+                   ComputeUInt32Size(WireFormat.MessageSetField.TypeID, (uint) fieldNumber) +

+                   ComputeMessageSize(WireFormat.MessageSetField.Message, value);

+        }

+

+        /// <summary>

+        /// Compute the number of bytes that would be needed to encode an

+        /// unparsed MessageSet extension field to the stream. For

+        /// historical reasons, the wire format differs from normal fields.

+        /// </summary>

+        public static int ComputeRawMessageSetExtensionSize(int fieldNumber, ByteString value)

+        {

+            return ComputeTagSize(WireFormat.MessageSetField.Item)*2 +

+                   ComputeUInt32Size(WireFormat.MessageSetField.TypeID, (uint) fieldNumber) +

+                   ComputeBytesSize(WireFormat.MessageSetField.Message, value);

+        }

+

+        /// <summary>

+        /// Compute the number of bytes that would be needed to encode a varint.

+        /// </summary>

+        [CLSCompliant(false)]

+        public static int ComputeRawVarint32Size(uint value)

+        {

+            if ((value & (0xffffffff << 7)) == 0) return 1;

+            if ((value & (0xffffffff << 14)) == 0) return 2;

+            if ((value & (0xffffffff << 21)) == 0) return 3;

+            if ((value & (0xffffffff << 28)) == 0) return 4;

+            return 5;

+        }

+

+        /// <summary>

+        /// Compute the number of bytes that would be needed to encode a varint.

+        /// </summary>

+        [CLSCompliant(false)]

+        public static int ComputeRawVarint64Size(ulong value)

+        {

+            if ((value & (0xffffffffffffffffL << 7)) == 0) return 1;

+            if ((value & (0xffffffffffffffffL << 14)) == 0) return 2;

+            if ((value & (0xffffffffffffffffL << 21)) == 0) return 3;

+            if ((value & (0xffffffffffffffffL << 28)) == 0) return 4;

+            if ((value & (0xffffffffffffffffL << 35)) == 0) return 5;

+            if ((value & (0xffffffffffffffffL << 42)) == 0) return 6;

+            if ((value & (0xffffffffffffffffL << 49)) == 0) return 7;

+            if ((value & (0xffffffffffffffffL << 56)) == 0) return 8;

+            if ((value & (0xffffffffffffffffL << 63)) == 0) return 9;

+            return 10;

+        }

+

+        /// <summary>

+        /// Compute the number of bytes that would be needed to encode a

+        /// field of arbitrary type, including the tag, to the stream.

+        /// </summary>

+        public static int ComputeFieldSize(FieldType fieldType, int fieldNumber, Object value)

+        {

+            switch (fieldType)

+            {

+                case FieldType.Double:

+                    return ComputeDoubleSize(fieldNumber, (double) value);

+                case FieldType.Float:

+                    return ComputeFloatSize(fieldNumber, (float) value);

+                case FieldType.Int64:

+                    return ComputeInt64Size(fieldNumber, (long) value);

+                case FieldType.UInt64:

+                    return ComputeUInt64Size(fieldNumber, (ulong) value);

+                case FieldType.Int32:

+                    return ComputeInt32Size(fieldNumber, (int) value);

+                case FieldType.Fixed64:

+                    return ComputeFixed64Size(fieldNumber, (ulong) value);

+                case FieldType.Fixed32:

+                    return ComputeFixed32Size(fieldNumber, (uint) value);

+                case FieldType.Bool:

+                    return ComputeBoolSize(fieldNumber, (bool) value);

+                case FieldType.String:

+                    return ComputeStringSize(fieldNumber, (string) value);

+                case FieldType.Group:

+                    return ComputeGroupSize(fieldNumber, (IMessageLite) value);

+                case FieldType.Message:

+                    return ComputeMessageSize(fieldNumber, (IMessageLite) value);

+                case FieldType.Bytes:

+                    return ComputeBytesSize(fieldNumber, (ByteString) value);

+                case FieldType.UInt32:

+                    return ComputeUInt32Size(fieldNumber, (uint) value);

+                case FieldType.SFixed32:

+                    return ComputeSFixed32Size(fieldNumber, (int) value);

+                case FieldType.SFixed64:

+                    return ComputeSFixed64Size(fieldNumber, (long) value);

+                case FieldType.SInt32:

+                    return ComputeSInt32Size(fieldNumber, (int) value);

+                case FieldType.SInt64:

+                    return ComputeSInt64Size(fieldNumber, (long) value);

+                case FieldType.Enum:

+                    return ComputeEnumSize(fieldNumber, ((IEnumLite) value).Number);

+                default:

+                    throw new ArgumentOutOfRangeException("Invalid field type " + fieldType);

+            }

+        }

+

+        /// <summary>

+        /// Compute the number of bytes that would be needed to encode a

+        /// field of arbitrary type, excluding the tag, to the stream.

+        /// </summary>

+        public static int ComputeFieldSizeNoTag(FieldType fieldType, Object value)

+        {

+            switch (fieldType)

+            {

+                case FieldType.Double:

+                    return ComputeDoubleSizeNoTag((double) value);

+                case FieldType.Float:

+                    return ComputeFloatSizeNoTag((float) value);

+                case FieldType.Int64:

+                    return ComputeInt64SizeNoTag((long) value);

+                case FieldType.UInt64:

+                    return ComputeUInt64SizeNoTag((ulong) value);

+                case FieldType.Int32:

+                    return ComputeInt32SizeNoTag((int) value);

+                case FieldType.Fixed64:

+                    return ComputeFixed64SizeNoTag((ulong) value);

+                case FieldType.Fixed32:

+                    return ComputeFixed32SizeNoTag((uint) value);

+                case FieldType.Bool:

+                    return ComputeBoolSizeNoTag((bool) value);

+                case FieldType.String:

+                    return ComputeStringSizeNoTag((string) value);

+                case FieldType.Group:

+                    return ComputeGroupSizeNoTag((IMessageLite) value);

+                case FieldType.Message:

+                    return ComputeMessageSizeNoTag((IMessageLite) value);

+                case FieldType.Bytes:

+                    return ComputeBytesSizeNoTag((ByteString) value);

+                case FieldType.UInt32:

+                    return ComputeUInt32SizeNoTag((uint) value);

+                case FieldType.SFixed32:

+                    return ComputeSFixed32SizeNoTag((int) value);

+                case FieldType.SFixed64:

+                    return ComputeSFixed64SizeNoTag((long) value);

+                case FieldType.SInt32:

+                    return ComputeSInt32SizeNoTag((int) value);

+                case FieldType.SInt64:

+                    return ComputeSInt64SizeNoTag((long) value);

+                case FieldType.Enum:

+                    return ComputeEnumSizeNoTag(((IEnumLite) value).Number);

+                default:

+                    throw new ArgumentOutOfRangeException("Invalid field type " + fieldType);

+            }

+        }

+

+        /// <summary>

+        /// Compute the number of bytes that would be needed to encode a tag.

+        /// </summary>

+        public static int ComputeTagSize(int fieldNumber)

+        {

+            return ComputeRawVarint32Size(WireFormat.MakeTag(fieldNumber, 0));

+        }

+

+        #endregion

+

+        /// <summary>

+        /// Encode a 32-bit value with ZigZag encoding.

+        /// </summary>

+        /// <remarks>

+        /// ZigZag encodes signed integers into values that can be efficiently

+        /// encoded with varint.  (Otherwise, negative values must be 

+        /// sign-extended to 64 bits to be varint encoded, thus always taking

+        /// 10 bytes on the wire.)

+        /// </remarks>

+        [CLSCompliant(false)]

+        public static uint EncodeZigZag32(int n)

+        {

+            // Note:  the right-shift must be arithmetic

+            return (uint) ((n << 1) ^ (n >> 31));

+        }

+

+        /// <summary>

+        /// Encode a 64-bit value with ZigZag encoding.

+        /// </summary>

+        /// <remarks>

+        /// ZigZag encodes signed integers into values that can be efficiently

+        /// encoded with varint.  (Otherwise, negative values must be 

+        /// sign-extended to 64 bits to be varint encoded, thus always taking

+        /// 10 bytes on the wire.)

+        /// </remarks>

+        [CLSCompliant(false)]

+        public static ulong EncodeZigZag64(long n)

+        {

+            return (ulong) ((n << 1) ^ (n >> 63));

+        }

+

+        private void RefreshBuffer()

+        {

+            if (output == null)

+            {

+                // We're writing to a single buffer.

+                throw new OutOfSpaceException();

+            }

+

+            // Since we have an output stream, this is our buffer

+            // and buffer offset == 0

+            output.Write(buffer, 0, position);

+            position = 0;

+        }

+

+        /// <summary>

+        /// Indicates that a CodedOutputStream wrapping a flat byte array

+        /// ran out of space.

+        /// </summary>

+        public sealed class OutOfSpaceException : IOException

+        {

+            internal OutOfSpaceException()

+                : base("CodedOutputStream was writing to a flat byte array and ran out of space.")

+            {

+            }

+        }

+

+        public void Flush()

+        {

+            if (output != null)

+            {

+                RefreshBuffer();

+            }

+        }

+

+        /// <summary>

+        /// Verifies that SpaceLeft returns zero. It's common to create a byte array

+        /// that is exactly big enough to hold a message, then write to it with

+        /// a CodedOutputStream. Calling CheckNoSpaceLeft after writing verifies that

+        /// the message was actually as big as expected, which can help bugs.

+        /// </summary>

+        public void CheckNoSpaceLeft()

+        {

+            if (SpaceLeft != 0)

+            {

+                throw new InvalidOperationException("Did not write as much data as expected.");

+            }

+        }

+

+        /// <summary>

+        /// If writing to a flat array, returns the space left in the array. Otherwise,

+        /// throws an InvalidOperationException.

+        /// </summary>

+        public int SpaceLeft

+        {

+            get

+            {

+                if (output == null)

+                {

+                    return limit - position;

+                }

+                else

+                {

+                    throw new InvalidOperationException(

+                        "SpaceLeft can only be called on CodedOutputStreams that are " +

+                        "writing to a flat array.");

+                }

+            }

+        }

+    }

+}
\ No newline at end of file