Merge pull request #7351 from jtattermusch/protobuf_csharp_new_parsing
New Span-based C# parsing logicpull/7476/head
Jan Tattermusch
5 years ago
committed by
GitHub
commit
a690227398
76 changed files with 6088 additions and 2573 deletions
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@ -0,0 +1,233 @@ |
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#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 |
||||||
|
// contributors may be used to endorse or promote products derived from |
||||||
|
// 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 |
||||||
|
// 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, |
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|
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
||||||
|
// 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 Google.Protobuf; |
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using Google.Protobuf.Reflection; |
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using System.Buffers; |
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using pb = global::Google.Protobuf; |
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using pbr = global::Google.Protobuf.Reflection; |
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using NUnit.Framework; |
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|
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namespace Google.Protobuf |
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{ |
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public class LegacyGeneratedCodeTest |
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{ |
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[Test] |
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public void IntermixingOfNewAndLegacyGeneratedCodeWorksWithCodedInputStream() |
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{ |
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var message = new ParseContextEnabledMessageB |
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{ |
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A = new LegacyGeneratedCodeMessageA |
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{ |
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Bb = new ParseContextEnabledMessageB { OptionalInt32 = 12345 } |
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}, |
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OptionalInt32 = 6789 |
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}; |
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var data = message.ToByteArray(); |
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|
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// when parsing started using CodedInputStream and a message with legacy generated code |
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// is encountered somewhere in the parse tree, we still need to be able to use its |
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// MergeFrom(CodedInputStream) method to parse correctly. |
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var codedInput = new CodedInputStream(data); |
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var parsed = new ParseContextEnabledMessageB(); |
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codedInput.ReadRawMessage(parsed); |
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Assert.IsTrue(codedInput.IsAtEnd); |
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|
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Assert.AreEqual(12345, parsed.A.Bb.OptionalInt32); |
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Assert.AreEqual(6789, parsed.OptionalInt32); |
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} |
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|
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[Test] |
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public void LegacyGeneratedCodeThrowsWithReadOnlySequence() |
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{ |
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var message = new ParseContextEnabledMessageB |
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{ |
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A = new LegacyGeneratedCodeMessageA |
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{ |
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Bb = new ParseContextEnabledMessageB { OptionalInt32 = 12345 } |
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}, |
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OptionalInt32 = 6789 |
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}; |
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var data = message.ToByteArray(); |
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|
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// if parsing started using ReadOnlySequence and we don't have a CodedInputStream |
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// instance at hand, we cannot fall back to the legacy MergeFrom(CodedInputStream) |
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// method and parsing will fail. As a consequence, one can only use parsing |
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// from ReadOnlySequence if all the messages in the parsing tree have their generated |
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// code up to date. |
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var exception = Assert.Throws<InvalidProtocolBufferException>(() => |
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{ |
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ParseContext.Initialize(new ReadOnlySequence<byte>(data), out ParseContext parseCtx); |
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var parsed = new ParseContextEnabledMessageB(); |
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ParsingPrimitivesMessages.ReadRawMessage(ref parseCtx, parsed); |
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}); |
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Assert.AreEqual($"Message {typeof(LegacyGeneratedCodeMessageA).Name} doesn't provide the generated method that enables ParseContext-based parsing. You might need to regenerate the generated protobuf code.", exception.Message); |
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} |
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|
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// hand-modified version of a generated message that only provides the legacy |
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// MergeFrom(CodedInputStream) method and doesn't implement IBufferMessage. |
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private sealed partial class LegacyGeneratedCodeMessageA : pb::IMessage { |
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private pb::UnknownFieldSet _unknownFields; |
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pbr::MessageDescriptor pb::IMessage.Descriptor => throw new System.NotImplementedException(); |
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/// <summary>Field number for the "bb" field.</summary> |
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public const int BbFieldNumber = 1; |
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private ParseContextEnabledMessageB bb_; |
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public ParseContextEnabledMessageB Bb { |
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get { return bb_; } |
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set { |
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bb_ = value; |
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} |
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} |
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public void WriteTo(pb::CodedOutputStream output) { |
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if (bb_ != null) { |
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output.WriteRawTag(10); |
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output.WriteMessage(Bb); |
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} |
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if (_unknownFields != null) { |
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_unknownFields.WriteTo(output); |
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} |
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} |
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|
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public int CalculateSize() { |
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int size = 0; |
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if (bb_ != null) { |
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size += 1 + pb::CodedOutputStream.ComputeMessageSize(Bb); |
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} |
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if (_unknownFields != null) { |
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size += _unknownFields.CalculateSize(); |
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} |
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return size; |
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} |
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|
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public void MergeFrom(pb::CodedInputStream input) { |
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uint tag; |
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while ((tag = input.ReadTag()) != 0) { |
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switch(tag) { |
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default: |
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_unknownFields = pb::UnknownFieldSet.MergeFieldFrom(_unknownFields, input); |
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break; |
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case 10: { |
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if (bb_ == null) { |
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Bb = new ParseContextEnabledMessageB(); |
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} |
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input.ReadMessage(Bb); |
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break; |
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} |
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} |
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} |
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} |
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} |
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// hand-modified version of a generated message that does provide |
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// the new InternalMergeFrom(ref ParseContext) method. |
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private sealed partial class ParseContextEnabledMessageB : pb::IBufferMessage { |
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private pb::UnknownFieldSet _unknownFields; |
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pbr::MessageDescriptor pb::IMessage.Descriptor => throw new System.NotImplementedException(); |
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/// <summary>Field number for the "a" field.</summary> |
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public const int AFieldNumber = 1; |
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private LegacyGeneratedCodeMessageA a_; |
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public LegacyGeneratedCodeMessageA A { |
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get { return a_; } |
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set { |
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a_ = value; |
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} |
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} |
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/// <summary>Field number for the "optional_int32" field.</summary> |
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public const int OptionalInt32FieldNumber = 2; |
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private int optionalInt32_; |
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public int OptionalInt32 { |
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get { return optionalInt32_; } |
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set { |
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optionalInt32_ = value; |
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} |
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} |
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|
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public void WriteTo(pb::CodedOutputStream output) { |
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if (a_ != null) { |
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output.WriteRawTag(10); |
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output.WriteMessage(A); |
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} |
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if (OptionalInt32 != 0) { |
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output.WriteRawTag(16); |
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output.WriteInt32(OptionalInt32); |
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} |
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if (_unknownFields != null) { |
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_unknownFields.WriteTo(output); |
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} |
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} |
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public int CalculateSize() { |
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int size = 0; |
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if (a_ != null) { |
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size += 1 + pb::CodedOutputStream.ComputeMessageSize(A); |
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} |
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if (OptionalInt32 != 0) { |
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size += 1 + pb::CodedOutputStream.ComputeInt32Size(OptionalInt32); |
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} |
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if (_unknownFields != null) { |
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size += _unknownFields.CalculateSize(); |
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} |
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return size; |
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} |
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public void MergeFrom(pb::CodedInputStream input) { |
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input.ReadRawMessage(this); |
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} |
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|
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void pb::IBufferMessage.InternalMergeFrom(ref pb::ParseContext input) { |
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uint tag; |
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while ((tag = input.ReadTag()) != 0) { |
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switch(tag) { |
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default: |
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_unknownFields = pb::UnknownFieldSet.MergeFieldFrom(_unknownFields, ref input); |
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break; |
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case 10: { |
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if (a_ == null) { |
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A = new LegacyGeneratedCodeMessageA(); |
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} |
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input.ReadMessage(A); |
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break; |
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} |
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case 16: { |
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OptionalInt32 = input.ReadInt32(); |
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break; |
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} |
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} |
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} |
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} |
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} |
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} |
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} |
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@ -0,0 +1,100 @@ |
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#region Copyright notice and license |
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|
// Protocol Buffers - Google's data interchange format |
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|
// Copyright 2015 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 |
||||||
|
// 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. |
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|
#endregion |
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|
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using NUnit.Framework; |
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using System; |
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using System.Buffers; |
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|
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namespace Google.Protobuf |
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{ |
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public static class MessageParsingHelpers |
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{ |
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public static void AssertReadingMessage<T>(MessageParser<T> parser, byte[] bytes, Action<T> assert) where T : IMessage<T> |
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{ |
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var parsedStream = parser.ParseFrom(bytes); |
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// Load content as single segment |
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var parsedBuffer = parser.ParseFrom(new ReadOnlySequence<byte>(bytes)); |
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assert(parsedBuffer); |
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|
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// Load content as multiple segments |
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parsedBuffer = parser.ParseFrom(ReadOnlySequenceFactory.CreateWithContent(bytes)); |
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assert(parsedBuffer); |
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|
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assert(parsedStream); |
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} |
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|
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public static void AssertReadingMessage(MessageParser parser, byte[] bytes, Action<IMessage> assert) |
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{ |
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var parsedStream = parser.ParseFrom(bytes); |
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|
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|
// Load content as single segment |
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var parsedBuffer = parser.ParseFrom(new ReadOnlySequence<byte>(bytes)); |
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assert(parsedBuffer); |
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|
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|
// Load content as multiple segments |
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parsedBuffer = parser.ParseFrom(ReadOnlySequenceFactory.CreateWithContent(bytes)); |
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assert(parsedBuffer); |
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|
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assert(parsedStream); |
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} |
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|
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public static void AssertReadingMessageThrows<TMessage, TException>(MessageParser<TMessage> parser, byte[] bytes) |
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where TMessage : IMessage<TMessage> |
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where TException : Exception |
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{ |
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Assert.Throws<TException>(() => parser.ParseFrom(bytes)); |
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|
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Assert.Throws<TException>(() => parser.ParseFrom(new ReadOnlySequence<byte>(bytes))); |
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} |
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|
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public static void AssertRoundtrip<T>(MessageParser<T> parser, T message, Action<T> additionalAssert = null) where T : IMessage<T> |
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{ |
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var bytes = message.ToByteArray(); |
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|
|
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|
// Load content as single segment |
||||||
|
var parsedBuffer = parser.ParseFrom(new ReadOnlySequence<byte>(bytes)); |
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|
Assert.AreEqual(message, parsedBuffer); |
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|
additionalAssert?.Invoke(parsedBuffer); |
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|
|
||||||
|
// Load content as multiple segments |
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|
parsedBuffer = parser.ParseFrom(ReadOnlySequenceFactory.CreateWithContent(bytes)); |
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|
Assert.AreEqual(message, parsedBuffer); |
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|
additionalAssert?.Invoke(parsedBuffer); |
||||||
|
|
||||||
|
var parsedStream = parser.ParseFrom(bytes); |
||||||
|
|
||||||
|
Assert.AreEqual(message, parsedStream); |
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|
additionalAssert?.Invoke(parsedStream); |
||||||
|
} |
||||||
|
} |
||||||
|
} |
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@ -0,0 +1,128 @@ |
|||||||
|
#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; |
||||||
|
using System.Buffers; |
||||||
|
using System.Collections.Generic; |
||||||
|
using System.Linq; |
||||||
|
using System.Text; |
||||||
|
using System.Threading.Tasks; |
||||||
|
|
||||||
|
namespace Google.Protobuf |
||||||
|
{ |
||||||
|
internal static class ReadOnlySequenceFactory |
||||||
|
{ |
||||||
|
public static ReadOnlySequence<byte> CreateWithContent(byte[] data, int segmentSize = 1) |
||||||
|
{ |
||||||
|
var segments = new List<byte[]>(); |
||||||
|
|
||||||
|
segments.Add(new byte[0]); |
||||||
|
var currentIndex = 0; |
||||||
|
while (currentIndex < data.Length) |
||||||
|
{ |
||||||
|
var segment = new List<byte>(); |
||||||
|
for (; currentIndex < Math.Min(currentIndex + segmentSize, data.Length); currentIndex++) |
||||||
|
{ |
||||||
|
segment.Add(data[currentIndex]); |
||||||
|
} |
||||||
|
segments.Add(segment.ToArray()); |
||||||
|
segments.Add(new byte[0]); |
||||||
|
} |
||||||
|
|
||||||
|
return CreateSegments(segments.ToArray()); |
||||||
|
} |
||||||
|
|
||||||
|
/// <summary> |
||||||
|
/// Originally from corefx, and has been contributed to Protobuf |
||||||
|
/// https://github.com/dotnet/corefx/blob/e99ec129cfd594d53f4390bf97d1d736cff6f860/src/System.Memory/tests/ReadOnlyBuffer/ReadOnlySequenceFactory.byte.cs |
||||||
|
/// </summary> |
||||||
|
private static ReadOnlySequence<byte> CreateSegments(params byte[][] inputs) |
||||||
|
{ |
||||||
|
if (inputs == null || inputs.Length == 0) |
||||||
|
{ |
||||||
|
throw new InvalidOperationException(); |
||||||
|
} |
||||||
|
|
||||||
|
int i = 0; |
||||||
|
|
||||||
|
BufferSegment last = null; |
||||||
|
BufferSegment first = null; |
||||||
|
|
||||||
|
do |
||||||
|
{ |
||||||
|
byte[] s = inputs[i]; |
||||||
|
int length = s.Length; |
||||||
|
int dataOffset = length; |
||||||
|
var chars = new byte[length * 2]; |
||||||
|
|
||||||
|
for (int j = 0; j < length; j++) |
||||||
|
{ |
||||||
|
chars[dataOffset + j] = s[j]; |
||||||
|
} |
||||||
|
|
||||||
|
// Create a segment that has offset relative to the OwnedMemory and OwnedMemory itself has offset relative to array |
||||||
|
var memory = new Memory<byte>(chars).Slice(length, length); |
||||||
|
|
||||||
|
if (first == null) |
||||||
|
{ |
||||||
|
first = new BufferSegment(memory); |
||||||
|
last = first; |
||||||
|
} |
||||||
|
else |
||||||
|
{ |
||||||
|
last = last.Append(memory); |
||||||
|
} |
||||||
|
i++; |
||||||
|
} while (i < inputs.Length); |
||||||
|
|
||||||
|
return new ReadOnlySequence<byte>(first, 0, last, last.Memory.Length); |
||||||
|
} |
||||||
|
|
||||||
|
private class BufferSegment : ReadOnlySequenceSegment<byte> |
||||||
|
{ |
||||||
|
public BufferSegment(Memory<byte> memory) |
||||||
|
{ |
||||||
|
Memory = memory; |
||||||
|
} |
||||||
|
|
||||||
|
public BufferSegment Append(Memory<byte> memory) |
||||||
|
{ |
||||||
|
var segment = new BufferSegment(memory) |
||||||
|
{ |
||||||
|
RunningIndex = RunningIndex + Memory.Length |
||||||
|
}; |
||||||
|
Next = segment; |
||||||
|
return segment; |
||||||
|
} |
||||||
|
} |
||||||
|
} |
||||||
|
} |
||||||
File diff suppressed because it is too large
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Reference in new issue