115 lines
4.6 KiB
C#
115 lines
4.6 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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using System;
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using System.Buffers;
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using System.Buffers.Binary;
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using System.Collections.Generic;
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using System.IO;
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using System.Runtime.CompilerServices;
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using System.Runtime.InteropServices;
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using System.Security;
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using System.Text;
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using LC.Google.Protobuf.Collections;
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namespace LC.Google.Protobuf
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{
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// warning: this is a mutable struct, so it needs to be only passed as a ref!
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internal struct ParserInternalState
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{
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// NOTE: the Span representing the current buffer is kept separate so that this doesn't have to be a ref struct and so it can
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// be included in CodedInputStream's internal state
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/// <summary>
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/// The position within the current buffer (i.e. the next byte to read)
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/// </summary>
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internal int bufferPos;
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/// <summary>
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/// Size of the current buffer
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/// </summary>
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internal int bufferSize;
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/// <summary>
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/// If we are currently inside a length-delimited block, this is the number of
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/// bytes in the buffer that are still available once we leave the delimited block.
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/// </summary>
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internal int bufferSizeAfterLimit;
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/// <summary>
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/// The absolute position of the end of the current length-delimited block (including totalBytesRetired)
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/// </summary>
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internal int currentLimit;
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/// <summary>
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/// The total number of consumed before the start of the current buffer. The
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/// total bytes read up to the current position can be computed as
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/// totalBytesRetired + bufferPos.
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/// </summary>
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internal int totalBytesRetired;
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internal int recursionDepth; // current recursion depth
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internal SegmentedBufferHelper segmentedBufferHelper;
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/// <summary>
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/// The last tag we read. 0 indicates we've read to the end of the stream
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/// (or haven't read anything yet).
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/// </summary>
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internal uint lastTag;
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/// <summary>
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/// The next tag, used to store the value read by PeekTag.
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/// </summary>
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internal uint nextTag;
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internal bool hasNextTag;
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// these fields are configuration, they should be readonly
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internal int sizeLimit;
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internal int recursionLimit;
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// If non-null, the top level parse method was started with given coded input stream as an argument
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// which also means we can potentially fallback to calling MergeFrom(CodedInputStream cis) if needed.
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internal CodedInputStream CodedInputStream => segmentedBufferHelper.CodedInputStream;
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/// <summary>
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/// Internal-only property; when set to true, unknown fields will be discarded while parsing.
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/// </summary>
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internal bool DiscardUnknownFields { get; set; }
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/// <summary>
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/// Internal-only property; provides extension identifiers to compatible messages while parsing.
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/// </summary>
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internal ExtensionRegistry ExtensionRegistry { get; set; }
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}
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} |