Added copy of existing classes that will be made Lite
diff --git a/src/ProtocolBuffers/ExtensionRegistryLite.cs b/src/ProtocolBuffers/ExtensionRegistryLite.cs
new file mode 100644
index 0000000..154b690
--- /dev/null
+++ b/src/ProtocolBuffers/ExtensionRegistryLite.cs
@@ -0,0 +1,245 @@
+#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.Collections.Generic;
+using Google.ProtocolBuffers.Descriptors;
+using System;
+
+namespace Google.ProtocolBuffers {
+ /// <summary>
+ /// A table of known extensions, searchable by name or field number. When
+ /// parsing a protocol message that might have extensions, you must provide
+ /// an <see cref="ExtensionRegistry"/> in which you have registered any extensions
+ /// that you want to be able to parse. Otherwise, those extensions will just
+ /// be treated like unknown fields.
+ /// </summary>
+ /// <example>
+ /// For example, if you had the <c>.proto</c> file:
+ /// <code>
+ /// option java_class = "MyProto";
+ ///
+ /// message Foo {
+ /// extensions 1000 to max;
+ /// }
+ ///
+ /// extend Foo {
+ /// optional int32 bar;
+ /// }
+ /// </code>
+ ///
+ /// Then you might write code like:
+ ///
+ /// <code>
+ /// ExtensionRegistry registry = ExtensionRegistry.CreateInstance();
+ /// registry.Add(MyProto.Bar);
+ /// MyProto.Foo message = MyProto.Foo.ParseFrom(input, registry);
+ /// </code>
+ /// </example>
+ ///
+ /// <remarks>
+ /// <para>You might wonder why this is necessary. Two alternatives might come to
+ /// mind. First, you might imagine a system where generated extensions are
+ /// automatically registered when their containing classes are loaded. This
+ /// is a popular technique, but is bad design; among other things, it creates a
+ /// situation where behavior can change depending on what classes happen to be
+ /// loaded. It also introduces a security vulnerability, because an
+ /// unprivileged class could cause its code to be called unexpectedly from a
+ /// privileged class by registering itself as an extension of the right type.
+ /// </para>
+ /// <para>Another option you might consider is lazy parsing: do not parse an
+ /// extension until it is first requested, at which point the caller must
+ /// provide a type to use. This introduces a different set of problems. First,
+ /// it would require a mutex lock any time an extension was accessed, which
+ /// would be slow. Second, corrupt data would not be detected until first
+ /// access, at which point it would be much harder to deal with it. Third, it
+ /// could violate the expectation that message objects are immutable, since the
+ /// type provided could be any arbitrary message class. An unprivileged user
+ /// could take advantage of this to inject a mutable object into a message
+ /// belonging to privileged code and create mischief.</para>
+ /// </remarks>
+ public sealed class ExtensionRegistry {
+
+ private static readonly ExtensionRegistry empty = new ExtensionRegistry(
+ new Dictionary<string, ExtensionInfo>(),
+ new Dictionary<DescriptorIntPair, ExtensionInfo>(),
+ true);
+
+ private readonly IDictionary<string, ExtensionInfo> extensionsByName;
+ private readonly IDictionary<DescriptorIntPair, ExtensionInfo> extensionsByNumber;
+ private readonly bool readOnly;
+
+ private ExtensionRegistry(IDictionary<String, ExtensionInfo> extensionsByName,
+ IDictionary<DescriptorIntPair, ExtensionInfo> extensionsByNumber,
+ bool readOnly) {
+ this.extensionsByName = extensionsByName;
+ this.extensionsByNumber = extensionsByNumber;
+ this.readOnly = readOnly;
+ }
+
+ /// <summary>
+ /// Construct a new, empty instance.
+ /// </summary>
+ public static ExtensionRegistry CreateInstance() {
+ return new ExtensionRegistry(new Dictionary<string, ExtensionInfo>(),
+ new Dictionary<DescriptorIntPair, ExtensionInfo>(), false);
+ }
+
+ /// <summary>
+ /// Get the unmodifiable singleton empty instance.
+ /// </summary>
+ public static ExtensionRegistry Empty {
+ get { return empty; }
+ }
+
+ public ExtensionRegistry AsReadOnly() {
+ return new ExtensionRegistry(extensionsByName, extensionsByNumber, true);
+ }
+
+ /// <summary>
+ /// Finds an extension by fully-qualified field name, in the
+ /// proto namespace, i.e. result.Descriptor.FullName will match
+ /// <paramref name="fullName"/> if a match is found. A null
+ /// reference is returned if the extension can't be found.
+ /// </summary>
+ public ExtensionInfo this[string fullName] {
+ get {
+ ExtensionInfo ret;
+ extensionsByName.TryGetValue(fullName, out ret);
+ return ret;
+ }
+ }
+
+ /// <summary>
+ /// Finds an extension by containing type and field number.
+ /// A null reference is returned if the extension can't be found.
+ /// </summary>
+ public ExtensionInfo this[MessageDescriptor containingType, int fieldNumber] {
+ get {
+ ExtensionInfo ret;
+ extensionsByNumber.TryGetValue(new DescriptorIntPair(containingType, fieldNumber), out ret);
+ return ret;
+ }
+ }
+
+ /// <summary>
+ /// Add an extension from a generated file to the registry.
+ /// </summary>
+ public void Add<TExtension> (GeneratedExtensionBase<TExtension> extension) {
+ if (extension.Descriptor.MappedType == MappedType.Message) {
+ Add(new ExtensionInfo(extension.Descriptor, extension.MessageDefaultInstance));
+ } else {
+ Add(new ExtensionInfo(extension.Descriptor, null));
+ }
+ }
+
+ /// <summary>
+ /// Adds a non-message-type extension to the registry by descriptor.
+ /// </summary>
+ /// <param name="type"></param>
+ public void Add(FieldDescriptor type) {
+ if (type.MappedType == MappedType.Message) {
+ throw new ArgumentException("ExtensionRegistry.Add() must be provided a default instance "
+ + "when adding an embedded message extension.");
+ }
+ Add(new ExtensionInfo(type, null));
+ }
+
+ /// <summary>
+ /// Adds a message-type-extension to the registry by descriptor.
+ /// </summary>
+ /// <param name="type"></param>
+ /// <param name="defaultInstance"></param>
+ public void Add(FieldDescriptor type, IMessage defaultInstance) {
+ if (type.MappedType != MappedType.Message) {
+ throw new ArgumentException("ExtensionRegistry.Add() provided a default instance for a "
+ + "non-message extension.");
+ }
+ Add(new ExtensionInfo(type, defaultInstance));
+ }
+
+ private void Add(ExtensionInfo extension) {
+ if (readOnly) {
+ throw new InvalidOperationException("Cannot add entries to a read-only extension registry");
+ }
+ if (!extension.Descriptor.IsExtension) {
+ throw new ArgumentException("ExtensionRegistry.add() was given a FieldDescriptor for a "
+ + "regular (non-extension) field.");
+ }
+
+ extensionsByName[extension.Descriptor.FullName] = extension;
+ extensionsByNumber[new DescriptorIntPair(extension.Descriptor.ContainingType,
+ extension.Descriptor.FieldNumber)] = extension;
+
+ FieldDescriptor field = extension.Descriptor;
+ if (field.ContainingType.Options.MessageSetWireFormat
+ && field.FieldType == FieldType.Message
+ && field.IsOptional
+ && field.ExtensionScope == field.MessageType) {
+ // This is an extension of a MessageSet type defined within the extension
+ // type's own scope. For backwards-compatibility, allow it to be looked
+ // up by type name.
+ extensionsByName[field.MessageType.FullName] = extension;
+ }
+ }
+
+ /// <summary>
+ /// Nested type just used to represent a pair of MessageDescriptor and int, as
+ /// the key into the "by number" map.
+ /// </summary>
+ private struct DescriptorIntPair : IEquatable<DescriptorIntPair> {
+ readonly MessageDescriptor descriptor;
+ readonly int number;
+
+ internal DescriptorIntPair(MessageDescriptor descriptor, int number) {
+ this.descriptor = descriptor;
+ this.number = number;
+ }
+
+ public override int GetHashCode() {
+ return descriptor.GetHashCode() * ((1 << 16) - 1) + number;
+ }
+
+ public override bool Equals(object obj) {
+ if (!(obj is DescriptorIntPair)) {
+ return false;
+ }
+ return Equals((DescriptorIntPair)obj);
+ }
+
+ public bool Equals(DescriptorIntPair other) {
+ return descriptor == other.descriptor && number == other.number;
+ }
+ }
+ }
+}
diff --git a/src/ProtocolBuffers/IBuilderLite.cs b/src/ProtocolBuffers/IBuilderLite.cs
new file mode 100644
index 0000000..b1aa4fb
--- /dev/null
+++ b/src/ProtocolBuffers/IBuilderLite.cs
@@ -0,0 +1,317 @@
+#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.IO;
+using Google.ProtocolBuffers.Descriptors;
+
+namespace Google.ProtocolBuffers {
+
+ /// <summary>
+ /// Non-generic interface for all members whose signatures don't require knowledge of
+ /// the type being built. The generic interface extends this one. Some methods return
+ /// either an IBuilder or an IMessage; in these cases the generic interface redeclares
+ /// the same method with a type-specific signature. Implementations are encouraged to
+ /// use explicit interface implemenation for the non-generic form. This mirrors
+ /// how IEnumerable and IEnumerable<T> work.
+ /// </summary>
+ public interface IBuilder {
+ /// <summary>
+ /// Returns true iff all required fields in the message and all
+ /// embedded messages are set.
+ /// </summary>
+ bool IsInitialized { get; }
+
+ /// <summary>
+ /// Only present in the nongeneric interface - useful for tests, but
+ /// not as much in real life.
+ /// </summary>
+ IBuilder SetField(FieldDescriptor field, object value);
+
+ /// <summary>
+ /// Only present in the nongeneric interface - useful for tests, but
+ /// not as much in real life.
+ /// </summary>
+ IBuilder SetRepeatedField(FieldDescriptor field, int index, object value);
+
+ /// <summary>
+ /// Behaves like the equivalent property in IMessage<T>.
+ /// The returned map may or may not reflect future changes to the builder.
+ /// Either way, the returned map is unmodifiable.
+ /// </summary>
+ IDictionary<FieldDescriptor, object> AllFields { get; }
+
+ /// <summary>
+ /// Allows getting and setting of a field.
+ /// <see cref="IMessage{TMessage, TBuilder}.Item(FieldDescriptor)"/>
+ /// </summary>
+ /// <param name="field"></param>
+ /// <returns></returns>
+ object this[FieldDescriptor field] { get; set; }
+
+ /// <summary>
+ /// Get the message's type descriptor.
+ /// <see cref="IMessage{TMessage, TBuilder}.DescriptorForType"/>
+ /// </summary>
+ MessageDescriptor DescriptorForType { get; }
+
+ /// <summary>
+ /// <see cref="IMessage{TMessage, TBuilder}.GetRepeatedFieldCount"/>
+ /// </summary>
+ /// <param name="field"></param>
+ /// <returns></returns>
+ int GetRepeatedFieldCount(FieldDescriptor field);
+
+ /// <summary>
+ /// Allows getting and setting of a repeated field value.
+ /// <see cref="IMessage{TMessage, TBuilder}.Item(FieldDescriptor, int)"/>
+ /// </summary>
+ object this[FieldDescriptor field, int index] { get; set; }
+
+ /// <summary>
+ /// <see cref="IMessage{TMessage, TBuilder}.HasField"/>
+ /// </summary>
+ bool HasField(FieldDescriptor field);
+
+ /// <summary>
+ /// <see cref="IMessage{TMessage, TBuilder}.UnknownFields"/>
+ /// </summary>
+ UnknownFieldSet UnknownFields { get; set; }
+
+ /// <summary>
+ /// Create a builder for messages of the appropriate type for the given field.
+ /// Messages built with this can then be passed to the various mutation properties
+ /// and methods.
+ /// </summary>
+ IBuilder CreateBuilderForField(FieldDescriptor field);
+
+ #region Methods which are like those of the generic form, but without any knowledge of the type parameters
+ IBuilder WeakAddRepeatedField(FieldDescriptor field, object value);
+ IBuilder WeakClear();
+ IBuilder WeakClearField(FieldDescriptor field);
+ IBuilder WeakMergeFrom(IMessage message);
+ IBuilder WeakMergeFrom(ByteString data);
+ IBuilder WeakMergeFrom(ByteString data, ExtensionRegistry registry);
+ IBuilder WeakMergeFrom(CodedInputStream input);
+ IBuilder WeakMergeFrom(CodedInputStream input, ExtensionRegistry registry);
+ IMessage WeakBuild();
+ IMessage WeakBuildPartial();
+ IBuilder WeakClone();
+ IMessage WeakDefaultInstanceForType { get; }
+ #endregion
+ }
+
+ /// <summary>
+ /// Interface implemented by Protocol Message builders.
+ /// TODO(jonskeet): Consider "SetXXX" methods returning the builder, as well as the properties.
+ /// </summary>
+ /// <typeparam name="TMessage">Type of message</typeparam>
+ /// <typeparam name="TBuilder">Type of builder</typeparam>
+ public interface IBuilder<TMessage, TBuilder> : IBuilder
+ where TMessage : IMessage<TMessage, TBuilder>
+ where TBuilder : IBuilder<TMessage, TBuilder> {
+
+ TBuilder SetUnknownFields(UnknownFieldSet unknownFields);
+
+ /// <summary>
+ /// Resets all fields to their default values.
+ /// </summary>
+ TBuilder Clear();
+
+ /// <summary>
+ /// Merge the specified other message into the message being
+ /// built. Merging occurs as follows. For each field:
+ /// For singular primitive fields, if the field is set in <paramref name="other"/>,
+ /// then <paramref name="other"/>'s value overwrites the value in this message.
+ /// For singular message fields, if the field is set in <paramref name="other"/>,
+ /// it is merged into the corresponding sub-message of this message using the same
+ /// merging rules.
+ /// For repeated fields, the elements in <paramref name="other"/> are concatenated
+ /// with the elements in this message.
+ /// </summary>
+ /// <param name="other"></param>
+ /// <returns></returns>
+ TBuilder MergeFrom(TMessage other);
+
+ /// <summary>
+ /// Merge the specified other message which may be a different implementation of
+ /// the same message descriptor.
+ /// </summary>
+ TBuilder MergeFrom(IMessage other);
+
+ /// <summary>
+ /// Constructs the final message. Once this is called, this Builder instance
+ /// is no longer valid, and calling any other method may throw a
+ /// NullReferenceException. If you need to continue working with the builder
+ /// after calling Build, call Clone first.
+ /// </summary>
+ /// <exception cref="UninitializedMessageException">the message
+ /// is missing one or more required fields; use BuildPartial to bypass
+ /// this check</exception>
+ TMessage Build();
+
+ /// <summary>
+ /// Like Build(), but does not throw an exception if the message is missing
+ /// required fields. Instead, a partial message is returned.
+ /// </summary>
+ TMessage BuildPartial();
+
+ /// <summary>
+ /// Clones this builder.
+ /// TODO(jonskeet): Explain depth of clone.
+ /// </summary>
+ TBuilder Clone();
+
+ /// <summary>
+ /// Parses a message of this type from the input and merges it with this
+ /// message, as if using MergeFrom(IMessage<T>).
+ /// </summary>
+ /// <remarks>
+ /// Warning: This does not verify that all required fields are present
+ /// in the input message. If you call Build() without setting all
+ /// required fields, it will throw an UninitializedMessageException.
+ /// There are a few good ways to deal with this:
+ /// <list>
+ /// <item>Call IsInitialized to verify to verify that all required fields are
+ /// set before building.</item>
+ /// <item>Parse the message separately using one of the static ParseFrom
+ /// methods, then use MergeFrom(IMessage<T>) to merge it with
+ /// this one. ParseFrom will throw an InvalidProtocolBufferException
+ /// (an IOException) if some required fields are missing.
+ /// Use BuildPartial to build, which ignores missing required fields.
+ /// </list>
+ /// </remarks>
+ TBuilder MergeFrom(CodedInputStream input);
+
+ /// <summary>
+ /// Like MergeFrom(CodedInputStream), but also parses extensions.
+ /// The extensions that you want to be able to parse must be registered
+ /// in <paramref name="extensionRegistry"/>. Extensions not in the registry
+ /// will be treated as unknown fields.
+ /// </summary>
+ TBuilder MergeFrom(CodedInputStream input, ExtensionRegistry extensionRegistry);
+
+ /// <summary>
+ /// Get's the message's type's default instance.
+ /// <see cref="IMessage{TMessage}.DefaultInstanceForType" />
+ /// </summary>
+ TMessage DefaultInstanceForType { get; }
+
+ /// <summary>
+ /// Clears the field. This is exactly equivalent to calling the generated
+ /// Clear method corresponding to the field.
+ /// </summary>
+ /// <param name="field"></param>
+ /// <returns></returns>
+ TBuilder ClearField(FieldDescriptor field);
+
+ /// <summary>
+ /// Appends the given value as a new element for the specified repeated field.
+ /// </summary>
+ /// <exception cref="ArgumentException">the field is not a repeated field,
+ /// the field does not belong to this builder's type, or the value is
+ /// of the incorrect type
+ /// </exception>
+ TBuilder AddRepeatedField(FieldDescriptor field, object value);
+
+ /// <summary>
+ /// Merge some unknown fields into the set for this message.
+ /// </summary>
+ TBuilder MergeUnknownFields(UnknownFieldSet unknownFields);
+
+ /// <summary>
+ /// Like MergeFrom(Stream), but does not read until the end of the file.
+ /// Instead, the size of the message (encoded as a varint) is read first,
+ /// then the message data. Use Message.WriteDelimitedTo(Stream) to
+ /// write messages in this format.
+ /// </summary>
+ /// <param name="input"></param>
+ TBuilder MergeDelimitedFrom(Stream input);
+
+ /// <summary>
+ /// Like MergeDelimitedFrom(Stream) but supporting extensions.
+ /// </summary>
+ TBuilder MergeDelimitedFrom(Stream input, ExtensionRegistry extensionRegistry);
+
+ #region Convenience methods
+ /// <summary>
+ /// Parse <paramref name="data"/> as a message of this type and merge
+ /// it with the message being built. This is just a small wrapper around
+ /// MergeFrom(CodedInputStream).
+ /// </summary>
+ TBuilder MergeFrom(ByteString data);
+
+ /// <summary>
+ /// Parse <paramref name="data"/> as a message of this type and merge
+ /// it with the message being built. This is just a small wrapper around
+ /// MergeFrom(CodedInputStream, ExtensionRegistry).
+ /// </summary>
+ TBuilder MergeFrom(ByteString data, ExtensionRegistry extensionRegistry);
+
+ /// <summary>
+ /// Parse <paramref name="data"/> as a message of this type and merge
+ /// it with the message being built. This is just a small wrapper around
+ /// MergeFrom(CodedInputStream).
+ /// </summary>
+ TBuilder MergeFrom(byte[] data);
+
+ /// <summary>
+ /// Parse <paramref name="data"/> as a message of this type and merge
+ /// it with the message being built. This is just a small wrapper around
+ /// MergeFrom(CodedInputStream, ExtensionRegistry).
+ /// </summary>
+ TBuilder MergeFrom(byte[] data, ExtensionRegistry extensionRegistry);
+
+ /// <summary>
+ /// Parse <paramref name="input"/> as a message of this type and merge
+ /// it with the message being built. This is just a small wrapper around
+ /// MergeFrom(CodedInputStream). Note that this method always reads
+ /// the entire input (unless it throws an exception). If you want it to
+ /// stop earlier, you will need to wrap the input in a wrapper
+ /// stream which limits reading. Or, use IMessage.WriteDelimitedTo(Stream)
+ /// to write your message and MmergeDelimitedFrom(Stream) to read it.
+ /// Despite usually reading the entire stream, this method never closes the stream.
+ /// </summary>
+ TBuilder MergeFrom(Stream input);
+
+ /// <summary>
+ /// Parse <paramref name="input"/> as a message of this type and merge
+ /// it with the message being built. This is just a small wrapper around
+ /// MergeFrom(CodedInputStream, ExtensionRegistry).
+ /// </summary>
+ TBuilder MergeFrom(Stream input, ExtensionRegistry extensionRegistry);
+ #endregion
+ }
+}
diff --git a/src/ProtocolBuffers/IMessageLite.cs b/src/ProtocolBuffers/IMessageLite.cs
new file mode 100644
index 0000000..ec955c6
--- /dev/null
+++ b/src/ProtocolBuffers/IMessageLite.cs
@@ -0,0 +1,236 @@
+#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.IO;
+using Google.ProtocolBuffers.Descriptors;
+
+namespace Google.ProtocolBuffers {
+
+ /// <summary>
+ /// Non-generic interface used for all parts of the API which don't require
+ /// any type knowledge.
+ /// </summary>
+ public interface IMessage {
+ /// <summary>
+ /// Returns the message's type's descriptor. This differs from the
+ /// Descriptor property of each generated message class in that this
+ /// method is an abstract method of IMessage whereas Descriptor is
+ /// a static property of a specific class. They return the same thing.
+ /// </summary>
+ MessageDescriptor DescriptorForType { get; }
+ /// <summary>
+ /// Returns a collection of all the fields in this message which are set
+ /// and their corresponding values. A singular ("required" or "optional")
+ /// field is set iff HasField() returns true for that field. A "repeated"
+ /// field is set iff GetRepeatedFieldSize() is greater than zero. The
+ /// values are exactly what would be returned by calling
+ /// GetField(FieldDescriptor) for each field. The map
+ /// is guaranteed to be a sorted map, so iterating over it will return fields
+ /// in order by field number.
+ /// </summary>
+ IDictionary<FieldDescriptor, object> AllFields { get; }
+
+ /// <summary>
+ /// Returns true if the given field is set. This is exactly equivalent
+ /// to calling the generated "Has" property corresponding to the field.
+ /// </summary>
+ /// <exception cref="ArgumentException">the field is a repeated field,
+ /// or it's not a field of this type</exception>
+ bool HasField(FieldDescriptor field);
+
+ /// <summary>
+ /// Obtains the value of the given field, or the default value if
+ /// it isn't set. For value type fields, the boxed value is returned.
+ /// For enum fields, the EnumValueDescriptor for the enum is returned.
+ /// For embedded message fields, the sub-message
+ /// is returned. For repeated fields, an IList<T> is returned.
+ /// </summary>
+ object this[FieldDescriptor field] { get; }
+
+ /// <summary>
+ /// Returns the number of elements of a repeated field. This is
+ /// exactly equivalent to calling the generated "Count" property
+ /// corresponding to the field.
+ /// </summary>
+ /// <exception cref="ArgumentException">the field is not a repeated field,
+ /// or it's not a field of this type</exception>
+ int GetRepeatedFieldCount(FieldDescriptor field);
+
+ /// <summary>
+ /// Gets an element of a repeated field. For value type fields
+ /// excluding enums, the boxed value is returned. For embedded
+ /// message fields, the sub-message is returned. For enums, the
+ /// relevant EnumValueDescriptor is returned.
+ /// </summary>
+ /// <exception cref="ArgumentException">the field is not a repeated field,
+ /// or it's not a field of this type</exception>
+ /// <exception cref="ArgumentOutOfRangeException">the index is out of
+ /// range for the repeated field's value</exception>
+ object this[FieldDescriptor field, int index] { get; }
+
+ /// <summary>
+ /// Returns the unknown fields for this message.
+ /// </summary>
+ UnknownFieldSet UnknownFields { get; }
+
+ /// <summary>
+ /// Returns true iff all required fields in the message and all embedded
+ /// messages are set.
+ /// </summary>
+ bool IsInitialized { get; }
+
+ /// <summary>
+ /// Serializes the message and writes it to the given output stream.
+ /// This does not flush or close the stream.
+ /// </summary>
+ /// <remarks>
+ /// Protocol Buffers are not self-delimiting. Therefore, if you write
+ /// any more data to the stream after the message, you must somehow ensure
+ /// that the parser on the receiving end does not interpret this as being
+ /// part of the protocol message. One way of doing this is by writing the size
+ /// of the message before the data, then making sure you limit the input to
+ /// that size when receiving the data. Alternatively, use WriteDelimitedTo(Stream).
+ /// </remarks>
+ void WriteTo(CodedOutputStream output);
+
+ /// <summary>
+ /// Like WriteTo(Stream) but writes the size of the message as a varint before
+ /// writing the data. This allows more data to be written to the stream after the
+ /// message without the need to delimit the message data yourself. Use
+ /// IBuilder.MergeDelimitedFrom(Stream) or the static method
+ /// YourMessageType.ParseDelimitedFrom(Stream) to parse messages written by this method.
+ /// </summary>
+ /// <param name="output"></param>
+ void WriteDelimitedTo(Stream output);
+
+ /// <summary>
+ /// Returns the number of bytes required to encode this message.
+ /// The result is only computed on the first call and memoized after that.
+ /// </summary>
+ int SerializedSize { get; }
+
+ #region Comparison and hashing
+ /// <summary>
+ /// Compares the specified object with this message for equality.
+ /// Returns true iff the given object is a message of the same type
+ /// (as defined by DescriptorForType) and has identical values
+ /// for all its fields.
+ /// </summary>
+ bool Equals(object other);
+
+ /// <summary>
+ /// Returns the hash code value for this message.
+ /// TODO(jonskeet): Specify the hash algorithm, but better than the Java one!
+ /// </summary>
+ int GetHashCode();
+ #endregion
+
+ #region Convenience methods
+ /// <summary>
+ /// Converts the message to a string in protocol buffer text format.
+ /// This is just a trivial wrapper around TextFormat.PrintToString.
+ /// </summary>
+ string ToString();
+
+ /// <summary>
+ /// Serializes the message to a ByteString. This is a trivial wrapper
+ /// around WriteTo(CodedOutputStream).
+ /// </summary>
+ ByteString ToByteString();
+
+ /// <summary>
+ /// Serializes the message to a byte array. This is a trivial wrapper
+ /// around WriteTo(CodedOutputStream).
+ /// </summary>
+ byte[] ToByteArray();
+
+ /// <summary>
+ /// Serializes the message and writes it to the given stream.
+ /// This is just a wrapper around WriteTo(CodedOutputStream). This
+ /// does not flush or close the stream.
+ /// </summary>
+ /// <param name="output"></param>
+ void WriteTo(Stream output);
+ #endregion
+
+ /// <summary>
+ /// Creates a builder for the type, but in a weakly typed manner. This
+ /// is typically implemented by strongly typed messages by just returning
+ /// the result of CreateBuilderForType.
+ /// </summary>
+ IBuilder WeakCreateBuilderForType();
+
+ /// <summary>
+ /// Creates a builder with the same contents as this message. This
+ /// is typically implemented by strongly typed messages by just returning
+ /// the result of ToBuilder.
+ /// </summary>
+ IBuilder WeakToBuilder();
+
+ IMessage WeakDefaultInstanceForType { get; }
+ }
+
+ public interface IMessage<TMessage> : IMessage {
+ /// <summary>
+ /// Returns an instance of this message type with all fields set to
+ /// their default values. This may or may not be a singleton. This differs
+ /// from the DefaultInstance property of each generated message class in that this
+ /// method is an abstract method of IMessage whereas DefaultInstance is
+ /// a static property of a specific class. They return the same thing.
+ /// </summary>
+ TMessage DefaultInstanceForType { get; }
+ }
+
+ /// <summary>
+ /// Type-safe interface for all generated messages to implement.
+ /// </summary>
+ public interface IMessage<TMessage, TBuilder> : IMessage<TMessage>
+ where TMessage : IMessage<TMessage, TBuilder>
+ where TBuilder : IBuilder<TMessage, TBuilder> {
+ #region Builders
+ /// <summary>
+ /// Constructs a new builder for a message of the same type as this message.
+ /// </summary>
+ TBuilder CreateBuilderForType();
+ /// <summary>
+ /// Creates a builder with the same contents as this current instance.
+ /// This is typically implemented by strongly typed messages by just
+ /// returning the result of ToBuilder().
+ /// </summary>
+ TBuilder ToBuilder();
+ #endregion
+ }
+}