csharp/src/Google.Protobuf/UnknownField.cs - third_party/protobuf - Git at Google

 #region Copyright notice and license
 // Protocol Buffers - Google's data interchange format
 // Copyright 2017 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.Collections.Generic;
 using Google.Protobuf.Collections;

 namespace Google.Protobuf
 {
     /// <summary>
     /// Represents a single field in an UnknownFieldSet.
     ///
     /// An UnknownField consists of four lists of values. The lists correspond
     /// to the four "wire types" used in the protocol buffer binary format.
     /// Normally, only one of the four lists will contain any values, since it
     /// is impossible to define a valid message type that declares two different
     /// types for the same field number. However, the code is designed to allow
     /// for the case where the same unknown field number is encountered using
     /// multiple different wire types.
     ///
     /// </summary>
     internal sealed class UnknownField
     {
         private List<ulong> varintList;
         private List<uint> fixed32List;
         private List<ulong> fixed64List;
         private List<ByteString> lengthDelimitedList;
         private List<UnknownFieldSet> groupList;

         /// <summary>
         /// Creates a new UnknownField.
         /// </summary>
         public UnknownField()
         {
         }

         /// <summary>
         /// Checks if two unknown field are equal.
         /// </summary>
         public override bool Equals(object other)
         {
             if (ReferenceEquals(this, other))
             {
                 return true;
             }
             return other is UnknownField otherField
                 && Lists.Equals(varintList, otherField.varintList)
                 && Lists.Equals(fixed32List, otherField.fixed32List)
                 && Lists.Equals(fixed64List, otherField.fixed64List)
                 && Lists.Equals(lengthDelimitedList, otherField.lengthDelimitedList)
                 && Lists.Equals(groupList, otherField.groupList);
         }

         /// <summary>
         /// Get the hash code of the unknown field.
         /// </summary>
         public override int GetHashCode()
         {
             int hash = 43;
             hash = hash * 47 + Lists.GetHashCode(varintList);
             hash = hash * 47 + Lists.GetHashCode(fixed32List);
             hash = hash * 47 + Lists.GetHashCode(fixed64List);
             hash = hash * 47 + Lists.GetHashCode(lengthDelimitedList);
             hash = hash * 47 + Lists.GetHashCode(groupList);
             return hash;
         }

         /// <summary>
         /// Serializes the field, including the field number, and writes it to
         /// <paramref name="output"/>
         /// </summary>
         /// <param name="fieldNumber">The unknown field number.</param>
         /// <param name="output">The write context to write to.</param>
         internal void WriteTo(int fieldNumber, ref WriteContext output)
         {
             if (varintList != null)
             {
                 foreach (ulong value in varintList)
                 {
                     output.WriteTag(fieldNumber, WireFormat.WireType.Varint);
                     output.WriteUInt64(value);
                 }
             }
             if (fixed32List != null)
             {
                 foreach (uint value in fixed32List)
                 {
                     output.WriteTag(fieldNumber, WireFormat.WireType.Fixed32);
                     output.WriteFixed32(value);
                 }
             }
             if (fixed64List != null)
             {
                 foreach (ulong value in fixed64List)
                 {
                     output.WriteTag(fieldNumber, WireFormat.WireType.Fixed64);
                     output.WriteFixed64(value);
                 }
             }
             if (lengthDelimitedList != null)
             {
                 foreach (ByteString value in lengthDelimitedList)
                 {
                     output.WriteTag(fieldNumber, WireFormat.WireType.LengthDelimited);
                     output.WriteBytes(value);
                 }
             }
             if (groupList != null)
             {
                 foreach (UnknownFieldSet value in groupList)
                 {
                     output.WriteTag(fieldNumber, WireFormat.WireType.StartGroup);
                     value.WriteTo(ref output);
                     output.WriteTag(fieldNumber, WireFormat.WireType.EndGroup);
                 }
             }
         }

         /// <summary>
         /// Computes the number of bytes required to encode this field, including field
         /// number.
         /// </summary>
         internal int GetSerializedSize(int fieldNumber)
         {
             int result = 0;
             if (varintList != null)
             {
                 result += CodedOutputStream.ComputeTagSize(fieldNumber) * varintList.Count;
                 foreach (ulong value in varintList)
                 {
                     result += CodedOutputStream.ComputeUInt64Size(value);
                 }
             }
             if (fixed32List != null)
             {
                 result += CodedOutputStream.ComputeTagSize(fieldNumber) * fixed32List.Count;
                 result += CodedOutputStream.ComputeFixed32Size(1) * fixed32List.Count;
             }
             if (fixed64List != null)
             {
                 result += CodedOutputStream.ComputeTagSize(fieldNumber) * fixed64List.Count;
                 result += CodedOutputStream.ComputeFixed64Size(1) * fixed64List.Count;
             }
             if (lengthDelimitedList != null)
             {
                 result += CodedOutputStream.ComputeTagSize(fieldNumber) * lengthDelimitedList.Count;
                 foreach (ByteString value in lengthDelimitedList)
                 {
                     result += CodedOutputStream.ComputeBytesSize(value);
                 }
             }
             if (groupList != null)
             {
                 result += CodedOutputStream.ComputeTagSize(fieldNumber) * 2 * groupList.Count;
                 foreach (UnknownFieldSet value in groupList)
                 {
                     result += value.CalculateSize();
                 }
             }
             return result;
         }

         /// <summary>
         /// Merge the values in <paramref name="other" /> into this field.  For each list
         /// of values, <paramref name="other"/>'s values are append to the ones in this
         /// field.
         /// </summary>
         internal UnknownField MergeFrom(UnknownField other)
         {
             varintList = AddAll(varintList, other.varintList);
             fixed32List = AddAll(fixed32List, other.fixed32List);
             fixed64List = AddAll(fixed64List, other.fixed64List);
             lengthDelimitedList = AddAll(lengthDelimitedList, other.lengthDelimitedList);
             groupList = AddAll(groupList, other.groupList);
             return this;
         }

         /// <summary>
         /// Returns a new list containing all of the given specified values from
         /// both the <paramref name="current"/> and <paramref name="extras"/> lists.
         /// If <paramref name="current" /> is null and <paramref name="extras"/> is null or empty,
         /// null is returned. Otherwise, either a new list is created (if <paramref name="current" />
         /// is null) or the elements of <paramref name="extras"/> are added to <paramref name="current" />.
         /// </summary>
         private static List<T> AddAll<T>(List<T> current, IList<T> extras)
         {
             if (extras == null || extras.Count == 0)
             {
                 return current;
             }
             if (current == null)
             {
                 current = new List<T>(extras);
             }
             else
             {
                 current.AddRange(extras);
             }
             return current;
         }

         /// <summary>
         /// Adds a varint value.
         /// </summary>
         internal UnknownField AddVarint(ulong value)
         {
             varintList = Add(varintList, value);
             return this;
         }

         /// <summary>
         /// Adds a fixed32 value.
         /// </summary>
         internal UnknownField AddFixed32(uint value)
         {
             fixed32List = Add(fixed32List, value);
             return this;
         }

         /// <summary>
         /// Adds a fixed64 value.
         /// </summary>
         internal UnknownField AddFixed64(ulong value)
         {
             fixed64List = Add(fixed64List, value);
             return this;
         }

         /// <summary>
         /// Adds a length-delimited value.
         /// </summary>
         internal UnknownField AddLengthDelimited(ByteString value)
         {
             lengthDelimitedList = Add(lengthDelimitedList, value);
             return this;
         }

         internal UnknownField AddGroup(UnknownFieldSet value)
         {
             groupList = Add(groupList, value);
             return this;
         }

         /// <summary>
         /// Adds <paramref name="value"/> to the <paramref name="list"/>, creating
         /// a new list if <paramref name="list"/> is null. The list is returned - either
         /// the original reference or the new list.
         /// </summary>
         private static List<T> Add<T>(List<T> list, T value)
         {
             if (list == null)
             {
                 list = new List<T>();
             }
             list.Add(value);
             return list;
         }
     }
 }
	#region Copyright notice and license
	// Protocol Buffers - Google's data interchange format
	// Copyright 2017 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.Collections.Generic;
	using Google.Protobuf.Collections;

	namespace Google.Protobuf
	{
	/// <summary>
	/// Represents a single field in an UnknownFieldSet.
	///
	/// An UnknownField consists of four lists of values. The lists correspond
	/// to the four "wire types" used in the protocol buffer binary format.
	/// Normally, only one of the four lists will contain any values, since it
	/// is impossible to define a valid message type that declares two different
	/// types for the same field number. However, the code is designed to allow
	/// for the case where the same unknown field number is encountered using
	/// multiple different wire types.
	///
	/// </summary>
	internal sealed class UnknownField
	{
	private List<ulong> varintList;
	private List<uint> fixed32List;
	private List<ulong> fixed64List;
	private List<ByteString> lengthDelimitedList;
	private List<UnknownFieldSet> groupList;

	/// <summary>
	/// Creates a new UnknownField.
	/// </summary>
	public UnknownField()
	{
	}

	/// <summary>
	/// Checks if two unknown field are equal.
	/// </summary>
	public override bool Equals(object other)
	{
	if (ReferenceEquals(this, other))
	{
	return true;
	}
	return other is UnknownField otherField
	&& Lists.Equals(varintList, otherField.varintList)
	&& Lists.Equals(fixed32List, otherField.fixed32List)
	&& Lists.Equals(fixed64List, otherField.fixed64List)
	&& Lists.Equals(lengthDelimitedList, otherField.lengthDelimitedList)
	&& Lists.Equals(groupList, otherField.groupList);
	}

	/// <summary>
	/// Get the hash code of the unknown field.
	/// </summary>
	public override int GetHashCode()
	{
	int hash = 43;
	hash = hash * 47 + Lists.GetHashCode(varintList);
	hash = hash * 47 + Lists.GetHashCode(fixed32List);
	hash = hash * 47 + Lists.GetHashCode(fixed64List);
	hash = hash * 47 + Lists.GetHashCode(lengthDelimitedList);
	hash = hash * 47 + Lists.GetHashCode(groupList);
	return hash;
	}

	/// <summary>
	/// Serializes the field, including the field number, and writes it to
	/// <paramref name="output"/>
	/// </summary>
	/// <param name="fieldNumber">The unknown field number.</param>
	/// <param name="output">The write context to write to.</param>
	internal void WriteTo(int fieldNumber, ref WriteContext output)
	{
	if (varintList != null)
	{
	foreach (ulong value in varintList)
	{
	output.WriteTag(fieldNumber, WireFormat.WireType.Varint);
	output.WriteUInt64(value);
	}
	}
	if (fixed32List != null)
	{
	foreach (uint value in fixed32List)
	{
	output.WriteTag(fieldNumber, WireFormat.WireType.Fixed32);
	output.WriteFixed32(value);
	}
	}
	if (fixed64List != null)
	{
	foreach (ulong value in fixed64List)
	{
	output.WriteTag(fieldNumber, WireFormat.WireType.Fixed64);
	output.WriteFixed64(value);
	}
	}
	if (lengthDelimitedList != null)
	{
	foreach (ByteString value in lengthDelimitedList)
	{
	output.WriteTag(fieldNumber, WireFormat.WireType.LengthDelimited);
	output.WriteBytes(value);
	}
	}
	if (groupList != null)
	{
	foreach (UnknownFieldSet value in groupList)
	{
	output.WriteTag(fieldNumber, WireFormat.WireType.StartGroup);
	value.WriteTo(ref output);
	output.WriteTag(fieldNumber, WireFormat.WireType.EndGroup);
	}
	}
	}

	/// <summary>
	/// Computes the number of bytes required to encode this field, including field
	/// number.
	/// </summary>
	internal int GetSerializedSize(int fieldNumber)
	{
	int result = 0;
	if (varintList != null)
	{
	result += CodedOutputStream.ComputeTagSize(fieldNumber) * varintList.Count;
	foreach (ulong value in varintList)
	{
	result += CodedOutputStream.ComputeUInt64Size(value);
	}
	}
	if (fixed32List != null)
	{
	result += CodedOutputStream.ComputeTagSize(fieldNumber) * fixed32List.Count;
	result += CodedOutputStream.ComputeFixed32Size(1) * fixed32List.Count;
	}
	if (fixed64List != null)
	{
	result += CodedOutputStream.ComputeTagSize(fieldNumber) * fixed64List.Count;
	result += CodedOutputStream.ComputeFixed64Size(1) * fixed64List.Count;
	}
	if (lengthDelimitedList != null)
	{
	result += CodedOutputStream.ComputeTagSize(fieldNumber) * lengthDelimitedList.Count;
	foreach (ByteString value in lengthDelimitedList)
	{
	result += CodedOutputStream.ComputeBytesSize(value);
	}
	}
	if (groupList != null)
	{
	result += CodedOutputStream.ComputeTagSize(fieldNumber) * 2 * groupList.Count;
	foreach (UnknownFieldSet value in groupList)
	{
	result += value.CalculateSize();
	}
	}
	return result;
	}

	/// <summary>
	/// Merge the values in <paramref name="other" /> into this field. For each list
	/// of values, <paramref name="other"/>'s values are append to the ones in this
	/// field.
	/// </summary>
	internal UnknownField MergeFrom(UnknownField other)
	{
	varintList = AddAll(varintList, other.varintList);
	fixed32List = AddAll(fixed32List, other.fixed32List);
	fixed64List = AddAll(fixed64List, other.fixed64List);
	lengthDelimitedList = AddAll(lengthDelimitedList, other.lengthDelimitedList);
	groupList = AddAll(groupList, other.groupList);
	return this;
	}

	/// <summary>
	/// Returns a new list containing all of the given specified values from
	/// both the <paramref name="current"/> and <paramref name="extras"/> lists.
	/// If <paramref name="current" /> is null and <paramref name="extras"/> is null or empty,
	/// null is returned. Otherwise, either a new list is created (if <paramref name="current" />
	/// is null) or the elements of <paramref name="extras"/> are added to <paramref name="current" />.
	/// </summary>
	private static List<T> AddAll<T>(List<T> current, IList<T> extras)
	{
	if (extras == null \|\| extras.Count == 0)
	{
	return current;
	}
	if (current == null)
	{
	current = new List<T>(extras);
	}
	else
	{
	current.AddRange(extras);
	}
	return current;
	}

	/// <summary>
	/// Adds a varint value.
	/// </summary>
	internal UnknownField AddVarint(ulong value)
	{
	varintList = Add(varintList, value);
	return this;
	}

	/// <summary>
	/// Adds a fixed32 value.
	/// </summary>
	internal UnknownField AddFixed32(uint value)
	{
	fixed32List = Add(fixed32List, value);
	return this;
	}

	/// <summary>
	/// Adds a fixed64 value.
	/// </summary>
	internal UnknownField AddFixed64(ulong value)
	{
	fixed64List = Add(fixed64List, value);
	return this;
	}

	/// <summary>
	/// Adds a length-delimited value.
	/// </summary>
	internal UnknownField AddLengthDelimited(ByteString value)
	{
	lengthDelimitedList = Add(lengthDelimitedList, value);
	return this;
	}

	internal UnknownField AddGroup(UnknownFieldSet value)
	{
	groupList = Add(groupList, value);
	return this;
	}

	/// <summary>
	/// Adds <paramref name="value"/> to the <paramref name="list"/>, creating
	/// a new list if <paramref name="list"/> is null. The list is returned - either
	/// the original reference or the new list.
	/// </summary>
	private static List<T> Add<T>(List<T> list, T value)
	{
	if (list == null)
	{
	list = new List<T>();
	}
	list.Add(value);
	return list;
	}
	}
	}