diff options
author | csharptest <roger@csharptest.net> | 2011-05-20 13:57:07 -0500 |
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committer | rogerk <devnull@localhost> | 2011-05-20 13:57:07 -0500 |
commit | d965c666ecf405f4e997ab251e72551508a14678 (patch) | |
tree | d5a76f7fda1daebc6838f9fa44afa98bec1bea05 /src/ProtocolBuffers/UnknownField.cs | |
parent | 62ce3a625e2a81f7631c73805b892c40ec8519f5 (diff) | |
download | protobuf-d965c666ecf405f4e997ab251e72551508a14678.tar.gz protobuf-d965c666ecf405f4e997ab251e72551508a14678.tar.bz2 protobuf-d965c666ecf405f4e997ab251e72551508a14678.zip |
line-ending-to-crlf
Diffstat (limited to 'src/ProtocolBuffers/UnknownField.cs')
-rw-r--r-- | src/ProtocolBuffers/UnknownField.cs | 742 |
1 files changed, 371 insertions, 371 deletions
diff --git a/src/ProtocolBuffers/UnknownField.cs b/src/ProtocolBuffers/UnknownField.cs index ad1b59b4..7aed8473 100644 --- a/src/ProtocolBuffers/UnknownField.cs +++ b/src/ProtocolBuffers/UnknownField.cs @@ -1,371 +1,371 @@ -#region Copyright notice and license -// Protocol Buffers - Google's data interchange format -// Copyright 2008 Google Inc. All rights reserved. -// http://github.com/jskeet/dotnet-protobufs/ -// Original C++/Java/Python code: -// http://code.google.com/p/protobuf/ -// -// 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.Collections.Generic; -using System.Collections.ObjectModel; -using Google.ProtocolBuffers.Collections; - -namespace Google.ProtocolBuffers { - /// <summary> - /// Represents a single field in an UnknownFieldSet. - /// - /// An UnknownField consists of five lists of values. The lists correspond - /// to the five "wire types" used in the protocol buffer binary format. - /// The wire type of each field can be determined from the encoded form alone, - /// without knowing the field's declared type. So, we are able to parse - /// unknown values at least this far and separate them. Normally, only one - /// of the five 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. - /// - /// UnknownField is an immutable class. To construct one, you must use an - /// UnknownField.Builder. - /// </summary> - public sealed class UnknownField { - - private static readonly UnknownField defaultInstance = CreateBuilder().Build(); - private readonly ReadOnlyCollection<ulong> varintList; - private readonly ReadOnlyCollection<uint> fixed32List; - private readonly ReadOnlyCollection<ulong> fixed64List; - private readonly ReadOnlyCollection<ByteString> lengthDelimitedList; - private readonly ReadOnlyCollection<UnknownFieldSet> groupList; - - private UnknownField(ReadOnlyCollection<ulong> varintList, - ReadOnlyCollection<uint> fixed32List, - ReadOnlyCollection<ulong> fixed64List, - ReadOnlyCollection<ByteString> lengthDelimitedList, - ReadOnlyCollection<UnknownFieldSet> groupList) { - this.varintList = varintList; - this.fixed32List = fixed32List; - this.fixed64List = fixed64List; - this.lengthDelimitedList = lengthDelimitedList; - this.groupList = groupList; - } - - public static UnknownField DefaultInstance { - get { return defaultInstance; } - } - - /// <summary> - /// The list of varint values for this field. - /// </summary> - public IList<ulong> VarintList { - get { return varintList; } - } - - /// <summary> - /// The list of fixed32 values for this field. - /// </summary> - public IList<uint> Fixed32List { - get { return fixed32List; } - } - - /// <summary> - /// The list of fixed64 values for this field. - /// </summary> - public IList<ulong> Fixed64List { - get { return fixed64List; } - } - - /// <summary> - /// The list of length-delimited values for this field. - /// </summary> - public IList<ByteString> LengthDelimitedList { - get { return lengthDelimitedList; } - } - - /// <summary> - /// The list of embedded group values for this field. These - /// are represented using UnknownFieldSets rather than Messages - /// since the group's type is presumably unknown. - /// </summary> - public IList<UnknownFieldSet> GroupList { - get { return groupList; } - } - - public override bool Equals(object other) { - if (ReferenceEquals(this, other)) { - return true; - } - UnknownField otherField = other as UnknownField; - return otherField != null - && 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); - } - - 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> - /// Constructs a new Builder. - /// </summary> - public static Builder CreateBuilder() { - return new Builder(); - } - - /// <summary> - /// Constructs a new Builder and initializes it to a copy of <paramref name="copyFrom"/>. - /// </summary> - public static Builder CreateBuilder(UnknownField copyFrom) { - return new Builder().MergeFrom(copyFrom); - } - - /// <summary> - /// Serializes the field, including the field number, and writes it to - /// <paramref name="output"/>. - /// </summary> - public void WriteTo(int fieldNumber, CodedOutputStream output) { - foreach (ulong value in varintList) { - output.WriteUInt64(fieldNumber, value); - } - foreach (uint value in fixed32List) { - output.WriteFixed32(fieldNumber, value); - } - foreach (ulong value in fixed64List) { - output.WriteFixed64(fieldNumber, value); - } - foreach (ByteString value in lengthDelimitedList) { - output.WriteBytes(fieldNumber, value); - } - foreach (UnknownFieldSet value in groupList) { -#pragma warning disable 0612 - output.WriteUnknownGroup(fieldNumber, value); -#pragma warning restore 0612 - } - } - - /// <summary> - /// Computes the number of bytes required to encode this field, including field - /// number. - /// </summary> - public int GetSerializedSize(int fieldNumber) { - int result = 0; - foreach (ulong value in varintList) { - result += CodedOutputStream.ComputeUInt64Size(fieldNumber, value); - } - foreach (uint value in fixed32List) { - result += CodedOutputStream.ComputeFixed32Size(fieldNumber, value); - } - foreach (ulong value in fixed64List) { - result += CodedOutputStream.ComputeFixed64Size(fieldNumber, value); - } - foreach (ByteString value in lengthDelimitedList) { - result += CodedOutputStream.ComputeBytesSize(fieldNumber, value); - } - foreach (UnknownFieldSet value in groupList) { -#pragma warning disable 0612 - result += CodedOutputStream.ComputeUnknownGroupSize(fieldNumber, value); -#pragma warning restore 0612 - } - return result; - } - - /// <summary> - /// Serializes the length-delimited values of the field, including field - /// number, and writes them to <paramref name="output"/> using the MessageSet wire format. - /// </summary> - /// <param name="fieldNumber"></param> - /// <param name="output"></param> - public void WriteAsMessageSetExtensionTo(int fieldNumber, CodedOutputStream output) { - foreach (ByteString value in lengthDelimitedList) { - output.WriteRawMessageSetExtension(fieldNumber, value); - } - } - - /// <summary> - /// Get the number of bytes required to encode this field, incuding field number, - /// using the MessageSet wire format. - /// </summary> - public int GetSerializedSizeAsMessageSetExtension(int fieldNumber) { - int result = 0; - foreach (ByteString value in lengthDelimitedList) { - result += CodedOutputStream.ComputeRawMessageSetExtensionSize(fieldNumber, value); - } - return result; - } - - /// <summary> - /// Used to build instances of UnknownField. - /// </summary> - public sealed class Builder { - - private List<ulong> varintList; - private List<uint> fixed32List; - private List<ulong> fixed64List; - private List<ByteString> lengthDelimitedList; - private List<UnknownFieldSet> groupList; - - /// <summary> - /// Builds the field. After building, the builder is reset to an empty - /// state. (This is actually easier than making it unusable.) - /// </summary> - public UnknownField Build() { - return new UnknownField(MakeReadOnly(ref varintList), - MakeReadOnly(ref fixed32List), - MakeReadOnly(ref fixed64List), - MakeReadOnly(ref lengthDelimitedList), - MakeReadOnly(ref groupList)); - } - - /// <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> - public Builder 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 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.Count == 0) { - return current; - } - if (current == null) { - current = new List<T>(extras); - } else { - current.AddRange(extras); - } - return current; - } - - /// <summary> - /// Clears the contents of this builder. - /// </summary> - public Builder Clear() { - varintList = null; - fixed32List = null; - fixed64List = null; - lengthDelimitedList = null; - groupList = null; - return this; - } - - /// <summary> - /// Adds a varint value. - /// </summary> - [CLSCompliant(false)] - public Builder AddVarint(ulong value) { - varintList = Add(varintList, value); - return this; - } - - /// <summary> - /// Adds a fixed32 value. - /// </summary> - [CLSCompliant(false)] - public Builder AddFixed32(uint value) { - fixed32List = Add(fixed32List, value); - return this; - } - - /// <summary> - /// Adds a fixed64 value. - /// </summary> - [CLSCompliant(false)] - public Builder AddFixed64(ulong value) { - fixed64List = Add(fixed64List, value); - return this; - } - - /// <summary> - /// Adds a length-delimited value. - /// </summary> - public Builder AddLengthDelimited(ByteString value) { - lengthDelimitedList = Add(lengthDelimitedList, value); - return this; - } - - /// <summary> - /// Adds an embedded group. - /// </summary> - /// <param name="value"></param> - /// <returns></returns> - public Builder 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; - } - - /// <summary> - /// Returns a read-only version of the given IList, and clears - /// the field used for <paramref name="list"/>. If the value - /// is null, an empty list is produced using Lists.Empty. - /// </summary> - /// <returns></returns> - private static ReadOnlyCollection<T> MakeReadOnly<T>(ref List<T> list) { - ReadOnlyCollection<T> ret = list == null ? Lists<T>.Empty : new ReadOnlyCollection<T>(list); - list = null; - return ret; - } - } - } -} +#region Copyright notice and license
+// Protocol Buffers - Google's data interchange format
+// Copyright 2008 Google Inc. All rights reserved.
+// http://github.com/jskeet/dotnet-protobufs/
+// Original C++/Java/Python code:
+// http://code.google.com/p/protobuf/
+//
+// 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.Collections.Generic;
+using System.Collections.ObjectModel;
+using Google.ProtocolBuffers.Collections;
+
+namespace Google.ProtocolBuffers {
+ /// <summary>
+ /// Represents a single field in an UnknownFieldSet.
+ ///
+ /// An UnknownField consists of five lists of values. The lists correspond
+ /// to the five "wire types" used in the protocol buffer binary format.
+ /// The wire type of each field can be determined from the encoded form alone,
+ /// without knowing the field's declared type. So, we are able to parse
+ /// unknown values at least this far and separate them. Normally, only one
+ /// of the five 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.
+ ///
+ /// UnknownField is an immutable class. To construct one, you must use an
+ /// UnknownField.Builder.
+ /// </summary>
+ public sealed class UnknownField {
+
+ private static readonly UnknownField defaultInstance = CreateBuilder().Build();
+ private readonly ReadOnlyCollection<ulong> varintList;
+ private readonly ReadOnlyCollection<uint> fixed32List;
+ private readonly ReadOnlyCollection<ulong> fixed64List;
+ private readonly ReadOnlyCollection<ByteString> lengthDelimitedList;
+ private readonly ReadOnlyCollection<UnknownFieldSet> groupList;
+
+ private UnknownField(ReadOnlyCollection<ulong> varintList,
+ ReadOnlyCollection<uint> fixed32List,
+ ReadOnlyCollection<ulong> fixed64List,
+ ReadOnlyCollection<ByteString> lengthDelimitedList,
+ ReadOnlyCollection<UnknownFieldSet> groupList) {
+ this.varintList = varintList;
+ this.fixed32List = fixed32List;
+ this.fixed64List = fixed64List;
+ this.lengthDelimitedList = lengthDelimitedList;
+ this.groupList = groupList;
+ }
+
+ public static UnknownField DefaultInstance {
+ get { return defaultInstance; }
+ }
+
+ /// <summary>
+ /// The list of varint values for this field.
+ /// </summary>
+ public IList<ulong> VarintList {
+ get { return varintList; }
+ }
+
+ /// <summary>
+ /// The list of fixed32 values for this field.
+ /// </summary>
+ public IList<uint> Fixed32List {
+ get { return fixed32List; }
+ }
+
+ /// <summary>
+ /// The list of fixed64 values for this field.
+ /// </summary>
+ public IList<ulong> Fixed64List {
+ get { return fixed64List; }
+ }
+
+ /// <summary>
+ /// The list of length-delimited values for this field.
+ /// </summary>
+ public IList<ByteString> LengthDelimitedList {
+ get { return lengthDelimitedList; }
+ }
+
+ /// <summary>
+ /// The list of embedded group values for this field. These
+ /// are represented using UnknownFieldSets rather than Messages
+ /// since the group's type is presumably unknown.
+ /// </summary>
+ public IList<UnknownFieldSet> GroupList {
+ get { return groupList; }
+ }
+
+ public override bool Equals(object other) {
+ if (ReferenceEquals(this, other)) {
+ return true;
+ }
+ UnknownField otherField = other as UnknownField;
+ return otherField != null
+ && 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);
+ }
+
+ 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>
+ /// Constructs a new Builder.
+ /// </summary>
+ public static Builder CreateBuilder() {
+ return new Builder();
+ }
+
+ /// <summary>
+ /// Constructs a new Builder and initializes it to a copy of <paramref name="copyFrom"/>.
+ /// </summary>
+ public static Builder CreateBuilder(UnknownField copyFrom) {
+ return new Builder().MergeFrom(copyFrom);
+ }
+
+ /// <summary>
+ /// Serializes the field, including the field number, and writes it to
+ /// <paramref name="output"/>.
+ /// </summary>
+ public void WriteTo(int fieldNumber, CodedOutputStream output) {
+ foreach (ulong value in varintList) {
+ output.WriteUInt64(fieldNumber, value);
+ }
+ foreach (uint value in fixed32List) {
+ output.WriteFixed32(fieldNumber, value);
+ }
+ foreach (ulong value in fixed64List) {
+ output.WriteFixed64(fieldNumber, value);
+ }
+ foreach (ByteString value in lengthDelimitedList) {
+ output.WriteBytes(fieldNumber, value);
+ }
+ foreach (UnknownFieldSet value in groupList) {
+#pragma warning disable 0612
+ output.WriteUnknownGroup(fieldNumber, value);
+#pragma warning restore 0612
+ }
+ }
+
+ /// <summary>
+ /// Computes the number of bytes required to encode this field, including field
+ /// number.
+ /// </summary>
+ public int GetSerializedSize(int fieldNumber) {
+ int result = 0;
+ foreach (ulong value in varintList) {
+ result += CodedOutputStream.ComputeUInt64Size(fieldNumber, value);
+ }
+ foreach (uint value in fixed32List) {
+ result += CodedOutputStream.ComputeFixed32Size(fieldNumber, value);
+ }
+ foreach (ulong value in fixed64List) {
+ result += CodedOutputStream.ComputeFixed64Size(fieldNumber, value);
+ }
+ foreach (ByteString value in lengthDelimitedList) {
+ result += CodedOutputStream.ComputeBytesSize(fieldNumber, value);
+ }
+ foreach (UnknownFieldSet value in groupList) {
+#pragma warning disable 0612
+ result += CodedOutputStream.ComputeUnknownGroupSize(fieldNumber, value);
+#pragma warning restore 0612
+ }
+ return result;
+ }
+
+ /// <summary>
+ /// Serializes the length-delimited values of the field, including field
+ /// number, and writes them to <paramref name="output"/> using the MessageSet wire format.
+ /// </summary>
+ /// <param name="fieldNumber"></param>
+ /// <param name="output"></param>
+ public void WriteAsMessageSetExtensionTo(int fieldNumber, CodedOutputStream output) {
+ foreach (ByteString value in lengthDelimitedList) {
+ output.WriteRawMessageSetExtension(fieldNumber, value);
+ }
+ }
+
+ /// <summary>
+ /// Get the number of bytes required to encode this field, incuding field number,
+ /// using the MessageSet wire format.
+ /// </summary>
+ public int GetSerializedSizeAsMessageSetExtension(int fieldNumber) {
+ int result = 0;
+ foreach (ByteString value in lengthDelimitedList) {
+ result += CodedOutputStream.ComputeRawMessageSetExtensionSize(fieldNumber, value);
+ }
+ return result;
+ }
+
+ /// <summary>
+ /// Used to build instances of UnknownField.
+ /// </summary>
+ public sealed class Builder {
+
+ private List<ulong> varintList;
+ private List<uint> fixed32List;
+ private List<ulong> fixed64List;
+ private List<ByteString> lengthDelimitedList;
+ private List<UnknownFieldSet> groupList;
+
+ /// <summary>
+ /// Builds the field. After building, the builder is reset to an empty
+ /// state. (This is actually easier than making it unusable.)
+ /// </summary>
+ public UnknownField Build() {
+ return new UnknownField(MakeReadOnly(ref varintList),
+ MakeReadOnly(ref fixed32List),
+ MakeReadOnly(ref fixed64List),
+ MakeReadOnly(ref lengthDelimitedList),
+ MakeReadOnly(ref groupList));
+ }
+
+ /// <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>
+ public Builder 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 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.Count == 0) {
+ return current;
+ }
+ if (current == null) {
+ current = new List<T>(extras);
+ } else {
+ current.AddRange(extras);
+ }
+ return current;
+ }
+
+ /// <summary>
+ /// Clears the contents of this builder.
+ /// </summary>
+ public Builder Clear() {
+ varintList = null;
+ fixed32List = null;
+ fixed64List = null;
+ lengthDelimitedList = null;
+ groupList = null;
+ return this;
+ }
+
+ /// <summary>
+ /// Adds a varint value.
+ /// </summary>
+ [CLSCompliant(false)]
+ public Builder AddVarint(ulong value) {
+ varintList = Add(varintList, value);
+ return this;
+ }
+
+ /// <summary>
+ /// Adds a fixed32 value.
+ /// </summary>
+ [CLSCompliant(false)]
+ public Builder AddFixed32(uint value) {
+ fixed32List = Add(fixed32List, value);
+ return this;
+ }
+
+ /// <summary>
+ /// Adds a fixed64 value.
+ /// </summary>
+ [CLSCompliant(false)]
+ public Builder AddFixed64(ulong value) {
+ fixed64List = Add(fixed64List, value);
+ return this;
+ }
+
+ /// <summary>
+ /// Adds a length-delimited value.
+ /// </summary>
+ public Builder AddLengthDelimited(ByteString value) {
+ lengthDelimitedList = Add(lengthDelimitedList, value);
+ return this;
+ }
+
+ /// <summary>
+ /// Adds an embedded group.
+ /// </summary>
+ /// <param name="value"></param>
+ /// <returns></returns>
+ public Builder 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;
+ }
+
+ /// <summary>
+ /// Returns a read-only version of the given IList, and clears
+ /// the field used for <paramref name="list"/>. If the value
+ /// is null, an empty list is produced using Lists.Empty.
+ /// </summary>
+ /// <returns></returns>
+ private static ReadOnlyCollection<T> MakeReadOnly<T>(ref List<T> list) {
+ ReadOnlyCollection<T> ret = list == null ? Lists<T>.Empty : new ReadOnlyCollection<T>(list);
+ list = null;
+ return ret;
+ }
+ }
+ }
+}
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