739351d476
Change log:95336cb92b..191d55580eFull diff:95336cb92b..191d55580eRoll chromium third_party 4e16929f46..3a8f2a9e1e Change log:4e16929f46..3a8f2a9e1eChanged dependencies: * src/tools:c44a3f5eca..f524a53b81DEPS diff:95336cb92b..191d55580e/DEPS No update to Clang. TBR=titovartem@google.com, BUG=None CQ_INCLUDE_TRYBOTS=master.internal.tryserver.corp.webrtc:linux_internal Change-Id: Ic9c4a62b050383646e9fcf5cc07a5653c14ac06e Reviewed-on: https://webrtc-review.googlesource.com/76120 Reviewed-by: Patrik Höglund <phoglund@webrtc.org> Reviewed-by: Karl Wiberg <kwiberg@webrtc.org> Reviewed-by: Artem Titov <titovartem@webrtc.org> Commit-Queue: Artem Titov <titovartem@webrtc.org> Cr-Commit-Position: refs/heads/master@{#23205}
104 lines
4.1 KiB
C#
104 lines
4.1 KiB
C#
#region Copyright notice and license
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// Protocol Buffers - Google's data interchange format
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// Copyright 2008 Google Inc. All rights reserved.
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// https://developers.google.com/protocol-buffers/
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#endregion
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namespace Google.Protobuf
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{
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/// <summary>
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/// This class is used internally by the Protocol Buffer Library and generated
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/// message implementations. It is public only for the sake of those generated
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/// messages. Others should not use this class directly.
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/// <para>
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/// This class contains constants and helper functions useful for dealing with
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/// the Protocol Buffer wire format.
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/// </para>
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/// </summary>
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public static class WireFormat
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{
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/// <summary>
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/// Wire types within protobuf encoding.
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/// </summary>
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public enum WireType : uint
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{
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/// <summary>
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/// Variable-length integer.
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/// </summary>
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Varint = 0,
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/// <summary>
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/// A fixed-length 64-bit value.
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/// </summary>
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Fixed64 = 1,
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/// <summary>
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/// A length-delimited value, i.e. a length followed by that many bytes of data.
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/// </summary>
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LengthDelimited = 2,
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/// <summary>
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/// A "start group" value - not supported by this implementation.
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/// </summary>
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StartGroup = 3,
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/// <summary>
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/// An "end group" value - not supported by this implementation.
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/// </summary>
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EndGroup = 4,
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/// <summary>
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/// A fixed-length 32-bit value.
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/// </summary>
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Fixed32 = 5
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}
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private const int TagTypeBits = 3;
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private const uint TagTypeMask = (1 << TagTypeBits) - 1;
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/// <summary>
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/// Given a tag value, determines the wire type (lower 3 bits).
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/// </summary>
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public static WireType GetTagWireType(uint tag)
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{
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return (WireType) (tag & TagTypeMask);
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}
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/// <summary>
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/// Given a tag value, determines the field number (the upper 29 bits).
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/// </summary>
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public static int GetTagFieldNumber(uint tag)
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{
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return (int) tag >> TagTypeBits;
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}
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/// <summary>
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/// Makes a tag value given a field number and wire type.
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/// </summary>
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public static uint MakeTag(int fieldNumber, WireType wireType)
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{
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return (uint) (fieldNumber << TagTypeBits) | (uint) wireType;
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}
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}
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} |