#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 Google.ProtocolBuffers.Descriptors;
namespace Google.ProtocolBuffers
{
public abstract class ExtendableBuilderLite<TMessage, TBuilder> : GeneratedBuilderLite<TMessage, TBuilder>
where TMessage : ExtendableMessageLite<TMessage, TBuilder>
where TBuilder : GeneratedBuilderLite<TMessage, TBuilder>
{
protected ExtendableBuilderLite()
{
}
/// <summary>
/// Checks if a singular extension is present
/// </summary>
public bool HasExtension<TExtension>(GeneratedExtensionLite<TMessage, TExtension> extension)
{
return MessageBeingBuilt.HasExtension(extension);
}
/// <summary>
/// Returns the number of elements in a repeated extension.
/// </summary>
public int GetExtensionCount<TExtension>(GeneratedExtensionLite<TMessage, IList<TExtension>> extension)
{
return MessageBeingBuilt.GetExtensionCount(extension);
}
/// <summary>
/// Returns the value of an extension.
/// </summary>
public TExtension GetExtension<TExtension>(GeneratedExtensionLite<TMessage, TExtension> extension)
{
return MessageBeingBuilt.GetExtension(extension);
}
/// <summary>
/// Returns one element of a repeated extension.
/// </summary>
public TExtension GetExtension<TExtension>(GeneratedExtensionLite<TMessage, IList<TExtension>> extension,
int index)
{
return MessageBeingBuilt.GetExtension(extension, index);
}
/// <summary>
/// Sets the value of an extension.
/// </summary>
public TBuilder SetExtension<TExtension>(GeneratedExtensionLite<TMessage, TExtension> extension,
TExtension value)
{
ExtendableMessageLite<TMessage, TBuilder> message = MessageBeingBuilt;
message.VerifyExtensionContainingType(extension);
message.Extensions[extension.Descriptor] = extension.ToReflectionType(value);
return ThisBuilder;
}
/// <summary>
/// Sets the value of one element of a repeated extension.
/// </summary>
public TBuilder SetExtension<TExtension>(GeneratedExtensionLite<TMessage, IList<TExtension>> extension,
int index, TExtension value)
{
ExtendableMessageLite<TMessage, TBuilder> message = MessageBeingBuilt;
message.VerifyExtensionContainingType(extension);
message.Extensions[extension.Descriptor, index] = extension.SingularToReflectionType(value);
return ThisBuilder;
}
/// <summary>
/// Appends a value to a repeated extension.
/// </summary>
public TBuilder AddExtension<TExtension>(GeneratedExtensionLite<TMessage, IList<TExtension>> extension,
TExtension value)
{
ExtendableMessageLite<TMessage, TBuilder> message = MessageBeingBuilt;
message.VerifyExtensionContainingType(extension);
message.Extensions.AddRepeatedField(extension.Descriptor, extension.SingularToReflectionType(value));
return ThisBuilder;
}
/// <summary>
/// Clears an extension.
/// </summary>
public TBuilder ClearExtension<TExtension>(GeneratedExtensionLite<TMessage, TExtension> extension)
{
ExtendableMessageLite<TMessage, TBuilder> message = MessageBeingBuilt;
message.VerifyExtensionContainingType(extension);
message.Extensions.ClearField(extension.Descriptor);
return ThisBuilder;
}
/// <summary>
/// Called by subclasses to parse an unknown field or an extension.
/// </summary>
/// <returns>true unless the tag is an end-group tag</returns>
[CLSCompliant(false)]
protected override bool ParseUnknownField(CodedInputStream input,
ExtensionRegistry extensionRegistry, uint tag)
{
FieldSet extensions = MessageBeingBuilt.Extensions;
WireFormat.WireType wireType = WireFormat.GetTagWireType(tag);
int fieldNumber = WireFormat.GetTagFieldNumber(tag);
IGeneratedExtensionLite extension = extensionRegistry[DefaultInstanceForType, fieldNumber];
bool unknown = false;
bool packed = false;
if (extension == null)
{
unknown = true; // Unknown field.
}
else if (wireType ==
FieldMappingAttribute.WireTypeFromFieldType(extension.Descriptor.FieldType, false /* isPacked */))
{
packed = false; // Normal, unpacked value.
}
else if (extension.Descriptor.IsRepeated &&
//?? just returns true ?? extension.Descriptor.type.isPackable() &&
wireType ==
FieldMappingAttribute.WireTypeFromFieldType(extension.Descriptor.FieldType, true /* isPacked */))
{
packed = true; // Packed value.
}
else
{
unknown = true; // Wrong wire type.
}
if (unknown)
{
// Unknown field or wrong wire type. Skip.
return input.SkipField(tag);
}
if (packed)
{
int length = (int) Math.Min(int.MaxValue, input.ReadRawVarint32());
int limit = input.PushLimit(length);
if (extension.Descriptor.FieldType == FieldType.Enum)
{
while (!input.ReachedLimit)
{
int rawValue = input.ReadEnum();
Object value =
extension.Descriptor.EnumType.FindValueByNumber(rawValue);
if (value == null)
{
// If the number isn't recognized as a valid value for this
// enum, drop it (don't even add it to unknownFields).
return true;
}
extensions.AddRepeatedField(extension.Descriptor, value);
}
}
else
{
while (!input.ReachedLimit)
{
Object value = input.ReadPrimitiveField(extension.Descriptor.FieldType);
extensions.AddRepeatedField(extension.Descriptor, value);
}
}
input.PopLimit(limit);
}
else
{
Object value;
switch (extension.Descriptor.MappedType)
{
case MappedType.Message:
{
IBuilderLite subBuilder = null;
if (!extension.Descriptor.IsRepeated)
{
IMessageLite existingValue = extensions[extension.Descriptor] as IMessageLite;
if (existingValue != null)
{
subBuilder = existingValue.WeakToBuilder();
}
}
if (subBuilder == null)
{
subBuilder = extension.MessageDefaultInstance.WeakCreateBuilderForType();
}
if (extension.Descriptor.FieldType == FieldType.Group)
{
input.ReadGroup(extension.Number, subBuilder, extensionRegistry);
}
else
{
input.ReadMessage(subBuilder, extensionRegistry);
}
value = subBuilder.WeakBuild();
break;
}
case MappedType.Enum:
int rawValue = input.ReadEnum();
value = extension.Descriptor.EnumType.FindValueByNumber(rawValue);
// If the number isn't recognized as a valid value for this enum,
// drop it.
if (value == null)
{
return true;
}
break;
default:
value = input.ReadPrimitiveField(extension.Descriptor.FieldType);
break;
}
if (extension.Descriptor.IsRepeated)
{
extensions.AddRepeatedField(extension.Descriptor, value);
}
else
{
extensions[extension.Descriptor] = value;
}
}
return true;
}
#region Reflection
public object this[IFieldDescriptorLite field, int index]
{
set
{
if (field.IsExtension)
{
ExtendableMessageLite<TMessage, TBuilder> message = MessageBeingBuilt;
message.Extensions[field, index] = value;
}
else
{
throw new NotSupportedException("Not supported in the lite runtime.");
}
}
}
public object this[IFieldDescriptorLite field]
{
set
{
if (field.IsExtension)
{
ExtendableMessageLite<TMessage, TBuilder> message = MessageBeingBuilt;
message.Extensions[field] = value;
}
else
{
throw new NotSupportedException("Not supported in the lite runtime.");
}
}
}
public TBuilder ClearField(IFieldDescriptorLite field)
{
if (field.IsExtension)
{
ExtendableMessageLite<TMessage, TBuilder> message = MessageBeingBuilt;
message.Extensions.ClearField(field);
return ThisBuilder;
}
else
{
throw new NotSupportedException("Not supported in the lite runtime.");
}
}
public TBuilder AddRepeatedField(IFieldDescriptorLite field, object value)
{
if (field.IsExtension)
{
ExtendableMessageLite<TMessage, TBuilder> message = MessageBeingBuilt;
message.Extensions.AddRepeatedField(field, value);
return ThisBuilder;
}
else
{
throw new NotSupportedException("Not supported in the lite runtime.");
}
}
protected void MergeExtensionFields(ExtendableMessageLite<TMessage, TBuilder> other)
{
MessageBeingBuilt.Extensions.MergeFrom(other.Extensions);
}
#endregion
}
}
