[8295] | 1 | #region Copyright notice and license
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| 2 |
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| 3 | // Protocol Buffers - Google's data interchange format
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| 4 | // Copyright 2008 Google Inc. All rights reserved.
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| 5 | // http://github.com/jskeet/dotnet-protobufs/
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| 6 | // Original C++/Java/Python code:
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| 7 | // http://code.google.com/p/protobuf/
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| 8 | //
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| 9 | // Redistribution and use in source and binary forms, with or without
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| 10 | // modification, are permitted provided that the following conditions are
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| 11 | // met:
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| 12 | //
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| 13 | // * Redistributions of source code must retain the above copyright
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| 14 | // notice, this list of conditions and the following disclaimer.
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| 15 | // * Redistributions in binary form must reproduce the above
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| 16 | // copyright notice, this list of conditions and the following disclaimer
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| 17 | // in the documentation and/or other materials provided with the
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| 18 | // distribution.
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| 19 | // * Neither the name of Google Inc. nor the names of its
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| 20 | // contributors may be used to endorse or promote products derived from
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| 21 | // this software without specific prior written permission.
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| 22 | //
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| 23 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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| 24 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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| 25 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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| 26 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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| 27 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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| 28 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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| 29 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 30 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 31 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 32 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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| 33 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 34 |
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| 35 | #endregion
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| 36 |
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| 37 | using System;
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| 38 | using System.Collections.Generic;
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| 39 | using System.Collections.ObjectModel;
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| 40 | using Google.ProtocolBuffers.Collections;
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| 41 |
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| 42 | namespace Google.ProtocolBuffers
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| 43 | {
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| 44 | /// <summary>
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| 45 | /// Represents a single field in an UnknownFieldSet.
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| 46 | ///
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| 47 | /// An UnknownField consists of five lists of values. The lists correspond
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| 48 | /// to the five "wire types" used in the protocol buffer binary format.
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| 49 | /// The wire type of each field can be determined from the encoded form alone,
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| 50 | /// without knowing the field's declared type. So, we are able to parse
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| 51 | /// unknown values at least this far and separate them. Normally, only one
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| 52 | /// of the five lists will contain any values, since it is impossible to
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| 53 | /// define a valid message type that declares two different types for the
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| 54 | /// same field number. However, the code is designed to allow for the case
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| 55 | /// where the same unknown field number is encountered using multiple different
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| 56 | /// wire types.
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| 57 | ///
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| 58 | /// UnknownField is an immutable class. To construct one, you must use an
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| 59 | /// UnknownField.Builder.
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| 60 | /// </summary>
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| 61 | public sealed class UnknownField
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| 62 | {
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| 63 | public const string UnknownFieldName = "unknown_field";
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| 64 | private static readonly UnknownField defaultInstance = CreateBuilder().Build();
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| 65 | private readonly ReadOnlyCollection<ulong> varintList;
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| 66 | private readonly ReadOnlyCollection<uint> fixed32List;
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| 67 | private readonly ReadOnlyCollection<ulong> fixed64List;
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| 68 | private readonly ReadOnlyCollection<ByteString> lengthDelimitedList;
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| 69 | private readonly ReadOnlyCollection<UnknownFieldSet> groupList;
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| 70 |
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| 71 | private UnknownField(ReadOnlyCollection<ulong> varintList,
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| 72 | ReadOnlyCollection<uint> fixed32List,
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| 73 | ReadOnlyCollection<ulong> fixed64List,
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| 74 | ReadOnlyCollection<ByteString> lengthDelimitedList,
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| 75 | ReadOnlyCollection<UnknownFieldSet> groupList)
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| 76 | {
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| 77 | this.varintList = varintList;
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| 78 | this.fixed32List = fixed32List;
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| 79 | this.fixed64List = fixed64List;
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| 80 | this.lengthDelimitedList = lengthDelimitedList;
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| 81 | this.groupList = groupList;
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| 82 | }
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| 83 |
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| 84 | public static UnknownField DefaultInstance
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| 85 | {
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| 86 | get { return defaultInstance; }
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| 87 | }
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| 88 |
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| 89 | /// <summary>
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| 90 | /// The list of varint values for this field.
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| 91 | /// </summary>
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| 92 | public IList<ulong> VarintList
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| 93 | {
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| 94 | get { return varintList; }
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| 95 | }
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| 96 |
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| 97 | /// <summary>
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| 98 | /// The list of fixed32 values for this field.
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| 99 | /// </summary>
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| 100 | public IList<uint> Fixed32List
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| 101 | {
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| 102 | get { return fixed32List; }
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| 103 | }
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| 104 |
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| 105 | /// <summary>
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| 106 | /// The list of fixed64 values for this field.
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| 107 | /// </summary>
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| 108 | public IList<ulong> Fixed64List
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| 109 | {
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| 110 | get { return fixed64List; }
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| 111 | }
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| 112 |
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| 113 | /// <summary>
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| 114 | /// The list of length-delimited values for this field.
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| 115 | /// </summary>
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| 116 | public IList<ByteString> LengthDelimitedList
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| 117 | {
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| 118 | get { return lengthDelimitedList; }
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| 119 | }
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| 120 |
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| 121 | /// <summary>
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| 122 | /// The list of embedded group values for this field. These
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| 123 | /// are represented using UnknownFieldSets rather than Messages
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| 124 | /// since the group's type is presumably unknown.
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| 125 | /// </summary>
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| 126 | public IList<UnknownFieldSet> GroupList
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| 127 | {
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| 128 | get { return groupList; }
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| 129 | }
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| 130 |
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| 131 | public override bool Equals(object other)
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| 132 | {
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| 133 | if (ReferenceEquals(this, other))
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| 134 | {
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| 135 | return true;
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| 136 | }
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| 137 | UnknownField otherField = other as UnknownField;
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| 138 | return otherField != null
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| 139 | && Lists.Equals(varintList, otherField.varintList)
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| 140 | && Lists.Equals(fixed32List, otherField.fixed32List)
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| 141 | && Lists.Equals(fixed64List, otherField.fixed64List)
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| 142 | && Lists.Equals(lengthDelimitedList, otherField.lengthDelimitedList)
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| 143 | && Lists.Equals(groupList, otherField.groupList);
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| 144 | }
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| 145 |
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| 146 | public override int GetHashCode()
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| 147 | {
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| 148 | int hash = 43;
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| 149 | hash = hash*47 + Lists.GetHashCode(varintList);
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| 150 | hash = hash*47 + Lists.GetHashCode(fixed32List);
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| 151 | hash = hash*47 + Lists.GetHashCode(fixed64List);
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| 152 | hash = hash*47 + Lists.GetHashCode(lengthDelimitedList);
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| 153 | hash = hash*47 + Lists.GetHashCode(groupList);
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| 154 | return hash;
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| 155 | }
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| 156 |
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| 157 | /// <summary>
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| 158 | /// Constructs a new Builder.
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| 159 | /// </summary>
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| 160 | public static Builder CreateBuilder()
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| 161 | {
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| 162 | return new Builder();
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| 163 | }
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| 164 |
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| 165 | /// <summary>
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| 166 | /// Constructs a new Builder and initializes it to a copy of <paramref name="copyFrom"/>.
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| 167 | /// </summary>
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| 168 | public static Builder CreateBuilder(UnknownField copyFrom)
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| 169 | {
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| 170 | return new Builder().MergeFrom(copyFrom);
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| 171 | }
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| 172 |
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| 173 | /// <summary>
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| 174 | /// Serializes the field, including the field number, and writes it to
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| 175 | /// <paramref name="output"/>.
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| 176 | /// </summary>
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| 177 | public void WriteTo(int fieldNumber, ICodedOutputStream output)
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| 178 | {
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| 179 | foreach (ulong value in varintList)
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| 180 | {
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| 181 | output.WriteUnknownField(fieldNumber, WireFormat.WireType.Varint, value);
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| 182 | }
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| 183 | foreach (uint value in fixed32List)
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| 184 | {
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| 185 | output.WriteUnknownField(fieldNumber, WireFormat.WireType.Fixed32, value);
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| 186 | }
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| 187 | foreach (ulong value in fixed64List)
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| 188 | {
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| 189 | output.WriteUnknownField(fieldNumber, WireFormat.WireType.Fixed64, value);
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| 190 | }
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| 191 | foreach (ByteString value in lengthDelimitedList)
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| 192 | {
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| 193 | output.WriteUnknownBytes(fieldNumber, value);
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| 194 | }
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| 195 | foreach (UnknownFieldSet value in groupList)
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| 196 | {
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| 197 | #pragma warning disable 0612
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| 198 | output.WriteUnknownGroup(fieldNumber, value);
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| 199 | #pragma warning restore 0612
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| 200 | }
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| 201 | }
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| 202 |
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| 203 | /// <summary>
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| 204 | /// Computes the number of bytes required to encode this field, including field
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| 205 | /// number.
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| 206 | /// </summary>
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| 207 | public int GetSerializedSize(int fieldNumber)
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| 208 | {
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| 209 | int result = 0;
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| 210 | foreach (ulong value in varintList)
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| 211 | {
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| 212 | result += CodedOutputStream.ComputeUInt64Size(fieldNumber, value);
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| 213 | }
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| 214 | foreach (uint value in fixed32List)
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| 215 | {
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| 216 | result += CodedOutputStream.ComputeFixed32Size(fieldNumber, value);
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| 217 | }
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| 218 | foreach (ulong value in fixed64List)
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| 219 | {
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| 220 | result += CodedOutputStream.ComputeFixed64Size(fieldNumber, value);
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| 221 | }
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| 222 | foreach (ByteString value in lengthDelimitedList)
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| 223 | {
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| 224 | result += CodedOutputStream.ComputeBytesSize(fieldNumber, value);
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| 225 | }
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| 226 | foreach (UnknownFieldSet value in groupList)
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| 227 | {
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| 228 | #pragma warning disable 0612
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| 229 | result += CodedOutputStream.ComputeUnknownGroupSize(fieldNumber, value);
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| 230 | #pragma warning restore 0612
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| 231 | }
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| 232 | return result;
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| 233 | }
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| 234 |
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| 235 | /// <summary>
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| 236 | /// Serializes the length-delimited values of the field, including field
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| 237 | /// number, and writes them to <paramref name="output"/> using the MessageSet wire format.
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| 238 | /// </summary>
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| 239 | /// <param name="fieldNumber"></param>
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| 240 | /// <param name="output"></param>
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| 241 | public void WriteAsMessageSetExtensionTo(int fieldNumber, ICodedOutputStream output)
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| 242 | {
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| 243 | foreach (ByteString value in lengthDelimitedList)
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| 244 | {
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| 245 | output.WriteMessageSetExtension(fieldNumber, UnknownFieldName, value);
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| 246 | }
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| 247 | }
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| 248 |
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| 249 | /// <summary>
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| 250 | /// Get the number of bytes required to encode this field, incuding field number,
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| 251 | /// using the MessageSet wire format.
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| 252 | /// </summary>
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| 253 | public int GetSerializedSizeAsMessageSetExtension(int fieldNumber)
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| 254 | {
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| 255 | int result = 0;
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| 256 | foreach (ByteString value in lengthDelimitedList)
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| 257 | {
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| 258 | result += CodedOutputStream.ComputeRawMessageSetExtensionSize(fieldNumber, value);
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| 259 | }
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| 260 | return result;
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| 261 | }
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| 262 |
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| 263 | /// <summary>
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| 264 | /// Used to build instances of UnknownField.
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| 265 | /// </summary>
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| 266 | public sealed class Builder
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| 267 | {
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| 268 | private List<ulong> varintList;
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| 269 | private List<uint> fixed32List;
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| 270 | private List<ulong> fixed64List;
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| 271 | private List<ByteString> lengthDelimitedList;
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| 272 | private List<UnknownFieldSet> groupList;
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| 273 |
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| 274 | /// <summary>
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| 275 | /// Builds the field. After building, the builder is reset to an empty
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| 276 | /// state. (This is actually easier than making it unusable.)
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| 277 | /// </summary>
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| 278 | public UnknownField Build()
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| 279 | {
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| 280 | return new UnknownField(MakeReadOnly(ref varintList),
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| 281 | MakeReadOnly(ref fixed32List),
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| 282 | MakeReadOnly(ref fixed64List),
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| 283 | MakeReadOnly(ref lengthDelimitedList),
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| 284 | MakeReadOnly(ref groupList));
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| 285 | }
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| 286 |
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| 287 | /// <summary>
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| 288 | /// Merge the values in <paramref name="other" /> into this field. For each list
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| 289 | /// of values, <paramref name="other"/>'s values are append to the ones in this
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| 290 | /// field.
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| 291 | /// </summary>
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| 292 | public Builder MergeFrom(UnknownField other)
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| 293 | {
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| 294 | varintList = AddAll(varintList, other.VarintList);
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| 295 | fixed32List = AddAll(fixed32List, other.Fixed32List);
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| 296 | fixed64List = AddAll(fixed64List, other.Fixed64List);
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| 297 | lengthDelimitedList = AddAll(lengthDelimitedList, other.LengthDelimitedList);
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| 298 | groupList = AddAll(groupList, other.GroupList);
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| 299 | return this;
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| 300 | }
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| 301 |
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| 302 | /// <summary>
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| 303 | /// Returns a new list containing all of the given specified values from
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| 304 | /// both the <paramref name="current"/> and <paramref name="extras"/> lists.
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| 305 | /// If <paramref name="current" /> is null and <paramref name="extras"/> is empty,
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| 306 | /// null is returned. Otherwise, either a new list is created (if <paramref name="current" />
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| 307 | /// is null) or the elements of <paramref name="extras"/> are added to <paramref name="current" />.
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| 308 | /// </summary>
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| 309 | private static List<T> AddAll<T>(List<T> current, IList<T> extras)
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| 310 | {
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| 311 | if (extras.Count == 0)
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| 312 | {
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| 313 | return current;
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| 314 | }
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| 315 | if (current == null)
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| 316 | {
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| 317 | current = new List<T>(extras);
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| 318 | }
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| 319 | else
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| 320 | {
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| 321 | current.AddRange(extras);
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| 322 | }
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| 323 | return current;
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| 324 | }
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| 325 |
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| 326 | /// <summary>
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| 327 | /// Clears the contents of this builder.
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| 328 | /// </summary>
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| 329 | public Builder Clear()
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| 330 | {
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| 331 | varintList = null;
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| 332 | fixed32List = null;
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| 333 | fixed64List = null;
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| 334 | lengthDelimitedList = null;
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| 335 | groupList = null;
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| 336 | return this;
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| 337 | }
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| 338 |
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| 339 | /// <summary>
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| 340 | /// Adds a varint value.
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| 341 | /// </summary>
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| 342 | [CLSCompliant(false)]
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| 343 | public Builder AddVarint(ulong value)
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| 344 | {
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| 345 | varintList = Add(varintList, value);
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| 346 | return this;
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| 347 | }
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| 348 |
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| 349 | /// <summary>
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| 350 | /// Adds a fixed32 value.
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| 351 | /// </summary>
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| 352 | [CLSCompliant(false)]
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| 353 | public Builder AddFixed32(uint value)
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| 354 | {
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| 355 | fixed32List = Add(fixed32List, value);
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| 356 | return this;
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| 357 | }
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| 358 |
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| 359 | /// <summary>
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| 360 | /// Adds a fixed64 value.
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| 361 | /// </summary>
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| 362 | [CLSCompliant(false)]
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| 363 | public Builder AddFixed64(ulong value)
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| 364 | {
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| 365 | fixed64List = Add(fixed64List, value);
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| 366 | return this;
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| 367 | }
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| 368 |
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| 369 | /// <summary>
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| 370 | /// Adds a length-delimited value.
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| 371 | /// </summary>
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| 372 | public Builder AddLengthDelimited(ByteString value)
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| 373 | {
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| 374 | lengthDelimitedList = Add(lengthDelimitedList, value);
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| 375 | return this;
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| 376 | }
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| 377 |
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| 378 | /// <summary>
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| 379 | /// Adds an embedded group.
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| 380 | /// </summary>
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| 381 | /// <param name="value"></param>
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| 382 | /// <returns></returns>
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| 383 | public Builder AddGroup(UnknownFieldSet value)
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| 384 | {
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| 385 | groupList = Add(groupList, value);
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| 386 | return this;
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| 387 | }
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| 388 |
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| 389 | /// <summary>
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| 390 | /// Adds <paramref name="value"/> to the <paramref name="list"/>, creating
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| 391 | /// a new list if <paramref name="list"/> is null. The list is returned - either
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| 392 | /// the original reference or the new list.
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| 393 | /// </summary>
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| 394 | private static List<T> Add<T>(List<T> list, T value)
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| 395 | {
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| 396 | if (list == null)
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| 397 | {
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| 398 | list = new List<T>();
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| 399 | }
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| 400 | list.Add(value);
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| 401 | return list;
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| 402 | }
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| 403 |
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| 404 | /// <summary>
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| 405 | /// Returns a read-only version of the given IList, and clears
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| 406 | /// the field used for <paramref name="list"/>. If the value
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| 407 | /// is null, an empty list is produced using Lists.Empty.
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| 408 | /// </summary>
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| 409 | /// <returns></returns>
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| 410 | private static ReadOnlyCollection<T> MakeReadOnly<T>(ref List<T> list)
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| 411 | {
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| 412 | ReadOnlyCollection<T> ret = list == null ? Lists<T>.Empty : new ReadOnlyCollection<T>(list);
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| 413 | list = null;
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| 414 | return ret;
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| 415 | }
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| 416 | }
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| 417 | }
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| 418 | } |
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