#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 Google.ProtocolBuffers.Descriptors;
namespace Google.ProtocolBuffers.ProtoGen
{
internal class MessageFieldGenerator : FieldGeneratorBase, IFieldSourceGenerator
{
internal MessageFieldGenerator(FieldDescriptor descriptor, int fieldOrdinal)
: base(descriptor, fieldOrdinal)
{
}
public void GenerateMembers(TextGenerator writer)
{
writer.WriteLine("private bool has{0};", PropertyName);
writer.WriteLine("private {0} {1}_ = {2};", TypeName, Name, DefaultValue);
AddDeprecatedFlag(writer);
writer.WriteLine("public bool Has{0} {{", PropertyName);
writer.WriteLine(" get {{ return has{0}; }}", PropertyName);
writer.WriteLine("}");
AddDeprecatedFlag(writer);
writer.WriteLine("public {0} {1} {{", TypeName, PropertyName);
writer.WriteLine(" get {{ return {0}_; }}", Name);
writer.WriteLine("}");
}
public void GenerateBuilderMembers(TextGenerator writer)
{
AddDeprecatedFlag(writer);
writer.WriteLine("public bool Has{0} {{", PropertyName);
writer.WriteLine(" get {{ return result.has{0}; }}", PropertyName);
writer.WriteLine("}");
AddDeprecatedFlag(writer);
writer.WriteLine("public {0} {1} {{", TypeName, PropertyName);
writer.WriteLine(" get {{ return result.{0}; }}", PropertyName);
writer.WriteLine(" set {{ Set{0}(value); }}", PropertyName);
writer.WriteLine("}");
AddDeprecatedFlag(writer);
writer.WriteLine("public Builder Set{0}({1} value) {{", PropertyName, TypeName);
AddNullCheck(writer);
writer.WriteLine(" result.has{0} = true;", PropertyName);
writer.WriteLine(" result.{0}_ = value;", Name);
writer.WriteLine(" return this;");
writer.WriteLine("}");
AddDeprecatedFlag(writer);
writer.WriteLine("public Builder Set{0}({1}.Builder builderForValue) {{", PropertyName, TypeName);
AddNullCheck(writer, "builderForValue");
writer.WriteLine(" result.has{0} = true;", PropertyName);
writer.WriteLine(" result.{0}_ = builderForValue.Build();", Name);
writer.WriteLine(" return this;");
writer.WriteLine("}");
AddDeprecatedFlag(writer);
writer.WriteLine("public Builder Merge{0}({1} value) {{", PropertyName, TypeName);
AddNullCheck(writer);
writer.WriteLine(" if (result.has{0} &&", PropertyName);
writer.WriteLine(" result.{0}_ != {1}) {{", Name, DefaultValue);
writer.WriteLine(" result.{0}_ = {1}.CreateBuilder(result.{0}_).MergeFrom(value).BuildPartial();", Name,
TypeName);
writer.WriteLine(" } else {");
writer.WriteLine(" result.{0}_ = value;", Name);
writer.WriteLine(" }");
writer.WriteLine(" result.has{0} = true;", PropertyName);
writer.WriteLine(" return this;");
writer.WriteLine("}");
AddDeprecatedFlag(writer);
writer.WriteLine("public Builder Clear{0}() {{", PropertyName);
writer.WriteLine(" result.has{0} = false;", PropertyName);
writer.WriteLine(" result.{0}_ = {1};", Name, DefaultValue);
writer.WriteLine(" return this;");
writer.WriteLine("}");
}
public void GenerateMergingCode(TextGenerator writer)
{
writer.WriteLine("if (other.Has{0}) {{", PropertyName);
writer.WriteLine(" Merge{0}(other.{0});", PropertyName);
writer.WriteLine("}");
}
public void GenerateBuildingCode(TextGenerator writer)
{
// Nothing to do for singular fields
}
public void GenerateParsingCode(TextGenerator writer)
{
writer.WriteLine("{0}.Builder subBuilder = {0}.CreateBuilder();", TypeName);
writer.WriteLine("if (result.has{0}) {{", PropertyName);
writer.WriteLine(" subBuilder.MergeFrom({0});", PropertyName);
writer.WriteLine("}");
if (Descriptor.FieldType == FieldType.Group)
{
writer.WriteLine("input.ReadGroup({0}, subBuilder, extensionRegistry);", Number);
}
else
{
writer.WriteLine("input.ReadMessage(subBuilder, extensionRegistry);");
}
writer.WriteLine("{0} = subBuilder.BuildPartial();", PropertyName);
}
public void GenerateSerializationCode(TextGenerator writer)
{
writer.WriteLine("if (has{0}) {{", PropertyName);
writer.WriteLine(" output.Write{0}({1}, field_names[{3}], {2});", MessageOrGroup, Number, PropertyName,
FieldOrdinal);
writer.WriteLine("}");
}
public void GenerateSerializedSizeCode(TextGenerator writer)
{
writer.WriteLine("if (has{0}) {{", PropertyName);
writer.WriteLine(" size += pb::CodedOutputStream.Compute{0}Size({1}, {2});",
MessageOrGroup, Number, PropertyName);
writer.WriteLine("}");
}
public override void WriteHash(TextGenerator writer)
{
writer.WriteLine("if (has{0}) hash ^= {1}_.GetHashCode();", PropertyName, Name);
}
public override void WriteEquals(TextGenerator writer)
{
writer.WriteLine("if (has{0} != other.has{0} || (has{0} && !{1}_.Equals(other.{1}_))) return false;",
PropertyName, Name);
}
public override void WriteToString(TextGenerator writer)
{
writer.WriteLine("PrintField(\"{2}\", has{0}, {1}_, writer);", PropertyName, Name,
Descriptor.FieldType == FieldType.Group ? Descriptor.MessageType.Name : Descriptor.Name);
}
}
}