Update //third_party/protobuf to version 3.

third_party/protobuf/csharp/src/Google.Protobuf/CodedOutputStream.ComputeSize.cs

+#region Copyright notice and license
+// Protocol Buffers - Google's data interchange format
+// Copyright 2008 Google Inc.  All rights reserved.
+// https://developers.google.com/protocol-buffers/
+//
+// 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;
+
+namespace Google.Protobuf
+{
+    // This part of CodedOutputStream provides all the static entry points that are used
+    // by generated code and internally to compute the size of messages prior to being
+    // written to an instance of CodedOutputStream.
+    public sealed partial class CodedOutputStream
+    {
+        private const int LittleEndian64Size = 8;
+        private const int LittleEndian32Size = 4;        
+
+        /// <summary>
+        /// Computes the number of bytes that would be needed to encode a
+        /// double field, including the tag.
+        /// </summary>
+        public static int ComputeDoubleSize(double value)
+        {
+            return LittleEndian64Size;
+        }
+
+        /// <summary>
+        /// Computes the number of bytes that would be needed to encode a
+        /// float field, including the tag.
+        /// </summary>
+        public static int ComputeFloatSize(float value)
+        {
+            return LittleEndian32Size;
+        }
+
+        /// <summary>
+        /// Computes the number of bytes that would be needed to encode a
+        /// uint64 field, including the tag.
+        /// </summary>
+        public static int ComputeUInt64Size(ulong value)
+        {
+            return ComputeRawVarint64Size(value);
+        }
+
+        /// <summary>
+        /// Computes the number of bytes that would be needed to encode an
+        /// int64 field, including the tag.
+        /// </summary>
+        public static int ComputeInt64Size(long value)
+        {
+            return ComputeRawVarint64Size((ulong) value);
+        }
+
+        /// <summary>
+        /// Computes the number of bytes that would be needed to encode an
+        /// int32 field, including the tag.
+        /// </summary>
+        public static int ComputeInt32Size(int value)
+        {
+            if (value >= 0)
+            {
+                return ComputeRawVarint32Size((uint) value);
+            }
+            else
+            {
+                // Must sign-extend.
+                return 10;
+            }
+        }
+
+        /// <summary>
+        /// Computes the number of bytes that would be needed to encode a
+        /// fixed64 field, including the tag.
+        /// </summary>
+        public static int ComputeFixed64Size(ulong value)
+        {
+            return LittleEndian64Size;
+        }
+
+        /// <summary>
+        /// Computes the number of bytes that would be needed to encode a
+        /// fixed32 field, including the tag.
+        /// </summary>
+        public static int ComputeFixed32Size(uint value)
+        {
+            return LittleEndian32Size;
+        }
+
+        /// <summary>
+        /// Computes the number of bytes that would be needed to encode a
+        /// bool field, including the tag.
+        /// </summary>
+        public static int ComputeBoolSize(bool value)
+        {
+            return 1;
+        }
+
+        /// <summary>
+        /// Computes the number of bytes that would be needed to encode a
+        /// string field, including the tag.
+        /// </summary>
+        public static int ComputeStringSize(String value)
+        {
+            int byteArraySize = Utf8Encoding.GetByteCount(value);
+            return ComputeLengthSize(byteArraySize) + byteArraySize;
+        }
+
+        /// <summary>
+        /// Computes the number of bytes that would be needed to encode a
+        /// group field, including the tag.
+        /// </summary>
+        public static int ComputeGroupSize(IMessage value)
+        {
+            return value.CalculateSize();
+        }
+
+        /// <summary>
+        /// Computes the number of bytes that would be needed to encode an
+        /// embedded message field, including the tag.
+        /// </summary>
+        public static int ComputeMessageSize(IMessage value)
+        {
+            int size = value.CalculateSize();
+            return ComputeLengthSize(size) + size;
+        }
+
+        /// <summary>
+        /// Computes the number of bytes that would be needed to encode a
+        /// bytes field, including the tag.
+        /// </summary>
+        public static int ComputeBytesSize(ByteString value)
+        {
+            return ComputeLengthSize(value.Length) + value.Length;
+        }
+
+        /// <summary>
+        /// Computes the number of bytes that would be needed to encode a
+        /// uint32 field, including the tag.
+        /// </summary>
+        public static int ComputeUInt32Size(uint value)
+        {
+            return ComputeRawVarint32Size(value);
+        }
+
+        /// <summary>
+        /// Computes 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 value)
+        {
+            // Currently just a pass-through, but it's nice to separate it logically.
+            return ComputeInt32Size(value);
+        }
+
+        /// <summary>
+        /// Computes the number of bytes that would be needed to encode an
+        /// sfixed32 field, including the tag.
+        /// </summary>
+        public static int ComputeSFixed32Size(int value)
+        {
+            return LittleEndian32Size;
+        }
+
+        /// <summary>
+        /// Computes the number of bytes that would be needed to encode an
+        /// sfixed64 field, including the tag.
+        /// </summary>
+        public static int ComputeSFixed64Size(long value)
+        {
+            return LittleEndian64Size;
+        }
+
+        /// <summary>
+        /// Computes the number of bytes that would be needed to encode an
+        /// sint32 field, including the tag.
+        /// </summary>
+        public static int ComputeSInt32Size(int value)
+        {
+            return ComputeRawVarint32Size(EncodeZigZag32(value));
+        }
+
+        /// <summary>
+        /// Computes the number of bytes that would be needed to encode an
+        /// sint64 field, including the tag.
+        /// </summary>
+        public static int ComputeSInt64Size(long value)
+        {
+            return ComputeRawVarint64Size(EncodeZigZag64(value));
+        }
+
+        /// <summary>
+        /// Computes the number of bytes that would be needed to encode a length,
+        /// as written by <see cref="WriteLength"/>.
+        /// </summary>
+        public static int ComputeLengthSize(int length)
+        {
+            return ComputeRawVarint32Size((uint) length);
+        }
+
+        /// <summary>
+        /// Computes the number of bytes that would be needed to encode a varint.
+        /// </summary>
+        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>
+        /// Computes the number of bytes that would be needed to encode a varint.
+        /// </summary>
+        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>
+        /// Computes 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));
+        }
+    }
+}