third_party/protobuf/3.6.1/src/google/protobuf/compiler/csharp/csharp_field_base.cc - bazel - Git at Google

 // Protocol Buffers - Google's data interchange format
 // Copyright 2008 Google Inc.  All rights reserved.
 // https://developers.google.com/protocol-buffers/
 //
 // 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.

 #include <limits>
 #include <sstream>

 #include <google/protobuf/compiler/code_generator.h>
 #include <google/protobuf/compiler/plugin.h>
 #include <google/protobuf/descriptor.h>
 #include <google/protobuf/descriptor.pb.h>
 #include <google/protobuf/io/coded_stream.h>
 #include <google/protobuf/io/printer.h>
 #include <google/protobuf/io/zero_copy_stream.h>
 #include <google/protobuf/stubs/mathlimits.h>
 #include <google/protobuf/stubs/strutil.h>
 #include <google/protobuf/wire_format.h>

 #include <google/protobuf/compiler/csharp/csharp_field_base.h>
 #include <google/protobuf/compiler/csharp/csharp_helpers.h>
 #include <google/protobuf/compiler/csharp/csharp_names.h>

 namespace google {
 namespace protobuf {
 namespace compiler {
 namespace csharp {

 void FieldGeneratorBase::SetCommonFieldVariables(
     std::map<string, string>* variables) {
   // Note: this will be valid even though the tag emitted for packed and unpacked versions of
   // repeated fields varies by wire format. The wire format is encoded in the bottom 3 bits, which
   // never effects the tag size.
   int tag_size = internal::WireFormat::TagSize(descriptor_->number(), descriptor_->type());
   uint tag = internal::WireFormat::MakeTag(descriptor_);
   uint8 tag_array[5];
   io::CodedOutputStream::WriteTagToArray(tag, tag_array);
   string tag_bytes = SimpleItoa(tag_array[0]);
   for (int i = 1; i < tag_size; i++) {
     tag_bytes += ", " + SimpleItoa(tag_array[i]);
   }

   (*variables)["access_level"] = "public";
   (*variables)["tag"] = SimpleItoa(tag);
   (*variables)["tag_size"] = SimpleItoa(tag_size);
   (*variables)["tag_bytes"] = tag_bytes;

   (*variables)["property_name"] = property_name();
   (*variables)["type_name"] = type_name();
   (*variables)["name"] = name();
   (*variables)["descriptor_name"] = descriptor_->name();
   (*variables)["default_value"] = default_value();
   if (has_default_value()) {
     (*variables)["name_def_message"] =
       (*variables)["name"] + "_ = " + (*variables)["default_value"];
   } else {
     (*variables)["name_def_message"] = (*variables)["name"] + "_";
   }
   (*variables)["capitalized_type_name"] = capitalized_type_name();
   (*variables)["number"] = number();
   (*variables)["has_property_check"] =
     (*variables)["property_name"] + " != " + (*variables)["default_value"];
   (*variables)["other_has_property_check"] = "other." +
     (*variables)["property_name"] + " != " + (*variables)["default_value"];
 }

 void FieldGeneratorBase::SetCommonOneofFieldVariables(
     std::map<string, string>* variables) {
   (*variables)["oneof_name"] = oneof_name();
   (*variables)["has_property_check"] =
     oneof_name() + "Case_ == " + oneof_property_name() +
     "OneofCase." + property_name();
   (*variables)["oneof_property_name"] = oneof_property_name();
 }

 FieldGeneratorBase::FieldGeneratorBase(const FieldDescriptor* descriptor,
                                        int fieldOrdinal, const Options* options)
     : SourceGeneratorBase(descriptor->file(), options),
       descriptor_(descriptor),
       fieldOrdinal_(fieldOrdinal) {
   SetCommonFieldVariables(&variables_);
 }

 FieldGeneratorBase::~FieldGeneratorBase() {
 }

 void FieldGeneratorBase::GenerateFreezingCode(io::Printer* printer) {
   // No-op: only message fields and repeated fields need
   // special handling for freezing, so default to not generating any code.
 }

 void FieldGeneratorBase::GenerateCodecCode(io::Printer* printer) {
     // No-op: expect this to be overridden by appropriate types.
     // Could fail if we get called here though...
 }

 void FieldGeneratorBase::AddDeprecatedFlag(io::Printer* printer) {
   if (descriptor_->options().deprecated()) {
     printer->Print("[global::System.ObsoleteAttribute]\n");
   } else if (descriptor_->type() == FieldDescriptor::TYPE_MESSAGE &&
            descriptor_->message_type()->options().deprecated()) {
     printer->Print("[global::System.ObsoleteAttribute]\n");
   }
 }

 void FieldGeneratorBase::AddPublicMemberAttributes(io::Printer* printer) {
   AddDeprecatedFlag(printer);
   WriteGeneratedCodeAttributes(printer);
 }

 std::string FieldGeneratorBase::oneof_property_name() {
   return UnderscoresToCamelCase(descriptor_->containing_oneof()->name(), true);
 }

 std::string FieldGeneratorBase::oneof_name() {
   return UnderscoresToCamelCase(descriptor_->containing_oneof()->name(), false);
 }

 std::string FieldGeneratorBase::property_name() {
   return GetPropertyName(descriptor_);
 }

 std::string FieldGeneratorBase::name() {
   return UnderscoresToCamelCase(GetFieldName(descriptor_), false);
 }

 std::string FieldGeneratorBase::type_name() {
   return type_name(descriptor_);
 }

 std::string FieldGeneratorBase::type_name(const FieldDescriptor* descriptor) {
   switch (descriptor->type()) {
     case FieldDescriptor::TYPE_ENUM:
       return GetClassName(descriptor->enum_type());
     case FieldDescriptor::TYPE_MESSAGE:
     case FieldDescriptor::TYPE_GROUP:
       if (IsWrapperType(descriptor)) {
         const FieldDescriptor* wrapped_field =
             descriptor->message_type()->field(0);
         string wrapped_field_type_name = type_name(wrapped_field);
         // String and ByteString go to the same type; other wrapped types
         // go to the nullable equivalent.
         if (wrapped_field->type() == FieldDescriptor::TYPE_STRING ||
             wrapped_field->type() == FieldDescriptor::TYPE_BYTES) {
           return wrapped_field_type_name;
         } else {
           return wrapped_field_type_name + "?";
         }
       }
       return GetClassName(descriptor->message_type());
     case FieldDescriptor::TYPE_DOUBLE:
       return "double";
     case FieldDescriptor::TYPE_FLOAT:
       return "float";
     case FieldDescriptor::TYPE_INT64:
       return "long";
     case FieldDescriptor::TYPE_UINT64:
       return "ulong";
     case FieldDescriptor::TYPE_INT32:
       return "int";
     case FieldDescriptor::TYPE_FIXED64:
       return "ulong";
     case FieldDescriptor::TYPE_FIXED32:
       return "uint";
     case FieldDescriptor::TYPE_BOOL:
       return "bool";
     case FieldDescriptor::TYPE_STRING:
       return "string";
     case FieldDescriptor::TYPE_BYTES:
       return "pb::ByteString";
     case FieldDescriptor::TYPE_UINT32:
       return "uint";
     case FieldDescriptor::TYPE_SFIXED32:
       return "int";
     case FieldDescriptor::TYPE_SFIXED64:
       return "long";
     case FieldDescriptor::TYPE_SINT32:
       return "int";
     case FieldDescriptor::TYPE_SINT64:
       return "long";
     default:
       GOOGLE_LOG(FATAL)<< "Unknown field type.";
       return "";
   }
 }

 bool FieldGeneratorBase::has_default_value() {
   switch (descriptor_->type()) {
     case FieldDescriptor::TYPE_ENUM:
     case FieldDescriptor::TYPE_MESSAGE:
     case FieldDescriptor::TYPE_GROUP:
       return true;
     case FieldDescriptor::TYPE_DOUBLE:
       return descriptor_->default_value_double() != 0.0;
     case FieldDescriptor::TYPE_FLOAT:
       return descriptor_->default_value_float() != 0.0;
     case FieldDescriptor::TYPE_INT64:
       return descriptor_->default_value_int64() != 0L;
     case FieldDescriptor::TYPE_UINT64:
       return descriptor_->default_value_uint64() != 0L;
     case FieldDescriptor::TYPE_INT32:
       return descriptor_->default_value_int32() != 0;
     case FieldDescriptor::TYPE_FIXED64:
       return descriptor_->default_value_uint64() != 0L;
     case FieldDescriptor::TYPE_FIXED32:
       return descriptor_->default_value_uint32() != 0;
     case FieldDescriptor::TYPE_BOOL:
       return descriptor_->default_value_bool();
     case FieldDescriptor::TYPE_STRING:
       return true;
     case FieldDescriptor::TYPE_BYTES:
       return true;
     case FieldDescriptor::TYPE_UINT32:
       return descriptor_->default_value_uint32() != 0;
     case FieldDescriptor::TYPE_SFIXED32:
       return descriptor_->default_value_int32() != 0;
     case FieldDescriptor::TYPE_SFIXED64:
       return descriptor_->default_value_int64() != 0L;
     case FieldDescriptor::TYPE_SINT32:
       return descriptor_->default_value_int32() != 0;
     case FieldDescriptor::TYPE_SINT64:
       return descriptor_->default_value_int64() != 0L;
     default:
       GOOGLE_LOG(FATAL)<< "Unknown field type.";
       return true;
   }
 }

 bool FieldGeneratorBase::is_nullable_type() {
   switch (descriptor_->type()) {
     case FieldDescriptor::TYPE_ENUM:
     case FieldDescriptor::TYPE_DOUBLE:
     case FieldDescriptor::TYPE_FLOAT:
     case FieldDescriptor::TYPE_INT64:
     case FieldDescriptor::TYPE_UINT64:
     case FieldDescriptor::TYPE_INT32:
     case FieldDescriptor::TYPE_FIXED64:
     case FieldDescriptor::TYPE_FIXED32:
     case FieldDescriptor::TYPE_BOOL:
     case FieldDescriptor::TYPE_UINT32:
     case FieldDescriptor::TYPE_SFIXED32:
     case FieldDescriptor::TYPE_SFIXED64:
     case FieldDescriptor::TYPE_SINT32:
     case FieldDescriptor::TYPE_SINT64:
       return false;

     case FieldDescriptor::TYPE_MESSAGE:
     case FieldDescriptor::TYPE_GROUP:
     case FieldDescriptor::TYPE_STRING:
     case FieldDescriptor::TYPE_BYTES:
       return true;

     default:
       GOOGLE_LOG(FATAL)<< "Unknown field type.";
       return true;
   }
 }

 bool AllPrintableAscii(const std::string& text) {
   for(int i = 0; i < text.size(); i++) {
     if (text[i] < 0x20 || text[i] > 0x7e) {
       return false;
     }
   }
   return true;
 }

 std::string FieldGeneratorBase::GetStringDefaultValueInternal() {
   // No other default values needed for proto3...
   return "\"\"";
 }

 std::string FieldGeneratorBase::GetBytesDefaultValueInternal() {
   // No other default values needed for proto3...
   return "pb::ByteString.Empty";
 }

 std::string FieldGeneratorBase::default_value() {
     return default_value(descriptor_);
 }

 std::string FieldGeneratorBase::default_value(const FieldDescriptor* descriptor) {
   switch (descriptor->type()) {
     case FieldDescriptor::TYPE_ENUM:
       // All proto3 enums have a default value of 0, and there's an implicit conversion from the constant 0 to
       // any C# enum. This means we don't need to work out what we actually mapped the enum value name to.
      return "0";
     case FieldDescriptor::TYPE_MESSAGE:
     case FieldDescriptor::TYPE_GROUP:
       if (IsWrapperType(descriptor)) {
         const FieldDescriptor* wrapped_field = descriptor->message_type()->field(0);
         return default_value(wrapped_field);
       } else {
         return "null";
       }
     case FieldDescriptor::TYPE_DOUBLE: {
       double value = descriptor->default_value_double();
       if (value == std::numeric_limits<double>::infinity()) {
         return "double.PositiveInfinity";
       } else if (value == -std::numeric_limits<double>::infinity()) {
         return "double.NegativeInfinity";
       } else if (MathLimits<double>::IsNaN(value)) {
         return "double.NaN";
       }
       return SimpleDtoa(value) + "D";
     }
     case FieldDescriptor::TYPE_FLOAT: {
       float value = descriptor->default_value_float();
       if (value == std::numeric_limits<float>::infinity()) {
         return "float.PositiveInfinity";
       } else if (value == -std::numeric_limits<float>::infinity()) {
         return "float.NegativeInfinity";
       } else if (MathLimits<float>::IsNaN(value)) {
         return "float.NaN";
       }
       return SimpleFtoa(value) + "F";
     }
     case FieldDescriptor::TYPE_INT64:
       return SimpleItoa(descriptor->default_value_int64()) + "L";
     case FieldDescriptor::TYPE_UINT64:
       return SimpleItoa(descriptor->default_value_uint64()) + "UL";
     case FieldDescriptor::TYPE_INT32:
       return SimpleItoa(descriptor->default_value_int32());
     case FieldDescriptor::TYPE_FIXED64:
       return SimpleItoa(descriptor->default_value_uint64()) + "UL";
     case FieldDescriptor::TYPE_FIXED32:
       return SimpleItoa(descriptor->default_value_uint32());
     case FieldDescriptor::TYPE_BOOL:
       if (descriptor->default_value_bool()) {
         return "true";
       } else {
         return "false";
       }
     case FieldDescriptor::TYPE_STRING:
       return GetStringDefaultValueInternal();
     case FieldDescriptor::TYPE_BYTES:
       return GetBytesDefaultValueInternal();
     case FieldDescriptor::TYPE_UINT32:
       return SimpleItoa(descriptor->default_value_uint32());
     case FieldDescriptor::TYPE_SFIXED32:
       return SimpleItoa(descriptor->default_value_int32());
     case FieldDescriptor::TYPE_SFIXED64:
       return SimpleItoa(descriptor->default_value_int64()) + "L";
     case FieldDescriptor::TYPE_SINT32:
       return SimpleItoa(descriptor->default_value_int32());
     case FieldDescriptor::TYPE_SINT64:
       return SimpleItoa(descriptor->default_value_int64()) + "L";
     default:
       GOOGLE_LOG(FATAL)<< "Unknown field type.";
       return "";
   }
 }

 std::string FieldGeneratorBase::number() {
   return SimpleItoa(descriptor_->number());
 }

 std::string FieldGeneratorBase::capitalized_type_name() {
   switch (descriptor_->type()) {
     case FieldDescriptor::TYPE_ENUM:
       return "Enum";
     case FieldDescriptor::TYPE_MESSAGE:
       return "Message";
     case FieldDescriptor::TYPE_GROUP:
       return "Group";
     case FieldDescriptor::TYPE_DOUBLE:
       return "Double";
     case FieldDescriptor::TYPE_FLOAT:
       return "Float";
     case FieldDescriptor::TYPE_INT64:
       return "Int64";
     case FieldDescriptor::TYPE_UINT64:
       return "UInt64";
     case FieldDescriptor::TYPE_INT32:
       return "Int32";
     case FieldDescriptor::TYPE_FIXED64:
       return "Fixed64";
     case FieldDescriptor::TYPE_FIXED32:
       return "Fixed32";
     case FieldDescriptor::TYPE_BOOL:
       return "Bool";
     case FieldDescriptor::TYPE_STRING:
       return "String";
     case FieldDescriptor::TYPE_BYTES:
       return "Bytes";
     case FieldDescriptor::TYPE_UINT32:
       return "UInt32";
     case FieldDescriptor::TYPE_SFIXED32:
       return "SFixed32";
     case FieldDescriptor::TYPE_SFIXED64:
       return "SFixed64";
     case FieldDescriptor::TYPE_SINT32:
       return "SInt32";
     case FieldDescriptor::TYPE_SINT64:
       return "SInt64";
     default:
       GOOGLE_LOG(FATAL)<< "Unknown field type.";
       return "";
   }
 }

 }  // namespace csharp
 }  // namespace compiler
 }  // namespace protobuf
 }  // namespace google
	// Protocol Buffers - Google's data interchange format
	// Copyright 2008 Google Inc. All rights reserved.
	// https://developers.google.com/protocol-buffers/
	//
	// 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.

	#include <limits>
	#include <sstream>

	#include <google/protobuf/compiler/code_generator.h>
	#include <google/protobuf/compiler/plugin.h>
	#include <google/protobuf/descriptor.h>
	#include <google/protobuf/descriptor.pb.h>
	#include <google/protobuf/io/coded_stream.h>
	#include <google/protobuf/io/printer.h>
	#include <google/protobuf/io/zero_copy_stream.h>
	#include <google/protobuf/stubs/mathlimits.h>
	#include <google/protobuf/stubs/strutil.h>
	#include <google/protobuf/wire_format.h>

	#include <google/protobuf/compiler/csharp/csharp_field_base.h>
	#include <google/protobuf/compiler/csharp/csharp_helpers.h>
	#include <google/protobuf/compiler/csharp/csharp_names.h>

	namespace google {
	namespace protobuf {
	namespace compiler {
	namespace csharp {

	void FieldGeneratorBase::SetCommonFieldVariables(
	std::map<string, string>* variables) {
	// Note: this will be valid even though the tag emitted for packed and unpacked versions of
	// repeated fields varies by wire format. The wire format is encoded in the bottom 3 bits, which
	// never effects the tag size.
	int tag_size = internal::WireFormat::TagSize(descriptor_->number(), descriptor_->type());
	uint tag = internal::WireFormat::MakeTag(descriptor_);
	uint8 tag_array[5];
	io::CodedOutputStream::WriteTagToArray(tag, tag_array);
	string tag_bytes = SimpleItoa(tag_array[0]);
	for (int i = 1; i < tag_size; i++) {
	tag_bytes += ", " + SimpleItoa(tag_array[i]);
	}

	(*variables)["access_level"] = "public";
	(*variables)["tag"] = SimpleItoa(tag);
	(*variables)["tag_size"] = SimpleItoa(tag_size);
	(*variables)["tag_bytes"] = tag_bytes;

	(*variables)["property_name"] = property_name();
	(*variables)["type_name"] = type_name();
	(*variables)["name"] = name();
	(*variables)["descriptor_name"] = descriptor_->name();
	(*variables)["default_value"] = default_value();
	if (has_default_value()) {
	(*variables)["name_def_message"] =
	(variables)["name"] + "_ = " + (variables)["default_value"];
	} else {
	(variables)["name_def_message"] = (variables)["name"] + "_";
	}
	(*variables)["capitalized_type_name"] = capitalized_type_name();
	(*variables)["number"] = number();
	(*variables)["has_property_check"] =
	(variables)["property_name"] + " != " + (variables)["default_value"];
	(*variables)["other_has_property_check"] = "other." +
	(variables)["property_name"] + " != " + (variables)["default_value"];
	}

	void FieldGeneratorBase::SetCommonOneofFieldVariables(
	std::map<string, string>* variables) {
	(*variables)["oneof_name"] = oneof_name();
	(*variables)["has_property_check"] =
	oneof_name() + "Case_ == " + oneof_property_name() +
	"OneofCase." + property_name();
	(*variables)["oneof_property_name"] = oneof_property_name();
	}

	FieldGeneratorBase::FieldGeneratorBase(const FieldDescriptor* descriptor,
	int fieldOrdinal, const Options* options)
	: SourceGeneratorBase(descriptor->file(), options),
	descriptor_(descriptor),
	fieldOrdinal_(fieldOrdinal) {
	SetCommonFieldVariables(&variables_);
	}

	FieldGeneratorBase::~FieldGeneratorBase() {
	}

	void FieldGeneratorBase::GenerateFreezingCode(io::Printer* printer) {
	// No-op: only message fields and repeated fields need
	// special handling for freezing, so default to not generating any code.
	}

	void FieldGeneratorBase::GenerateCodecCode(io::Printer* printer) {
	// No-op: expect this to be overridden by appropriate types.
	// Could fail if we get called here though...
	}

	void FieldGeneratorBase::AddDeprecatedFlag(io::Printer* printer) {
	if (descriptor_->options().deprecated()) {
	printer->Print("[global::System.ObsoleteAttribute]\n");
	} else if (descriptor_->type() == FieldDescriptor::TYPE_MESSAGE &&
	descriptor_->message_type()->options().deprecated()) {
	printer->Print("[global::System.ObsoleteAttribute]\n");
	}
	}

	void FieldGeneratorBase::AddPublicMemberAttributes(io::Printer* printer) {
	AddDeprecatedFlag(printer);
	WriteGeneratedCodeAttributes(printer);
	}

	std::string FieldGeneratorBase::oneof_property_name() {
	return UnderscoresToCamelCase(descriptor_->containing_oneof()->name(), true);
	}

	std::string FieldGeneratorBase::oneof_name() {
	return UnderscoresToCamelCase(descriptor_->containing_oneof()->name(), false);
	}

	std::string FieldGeneratorBase::property_name() {
	return GetPropertyName(descriptor_);
	}

	std::string FieldGeneratorBase::name() {
	return UnderscoresToCamelCase(GetFieldName(descriptor_), false);
	}

	std::string FieldGeneratorBase::type_name() {
	return type_name(descriptor_);
	}

	std::string FieldGeneratorBase::type_name(const FieldDescriptor* descriptor) {
	switch (descriptor->type()) {
	case FieldDescriptor::TYPE_ENUM:
	return GetClassName(descriptor->enum_type());
	case FieldDescriptor::TYPE_MESSAGE:
	case FieldDescriptor::TYPE_GROUP:
	if (IsWrapperType(descriptor)) {
	const FieldDescriptor* wrapped_field =
	descriptor->message_type()->field(0);
	string wrapped_field_type_name = type_name(wrapped_field);
	// String and ByteString go to the same type; other wrapped types
	// go to the nullable equivalent.
	if (wrapped_field->type() == FieldDescriptor::TYPE_STRING \|\|
	wrapped_field->type() == FieldDescriptor::TYPE_BYTES) {
	return wrapped_field_type_name;
	} else {
	return wrapped_field_type_name + "?";
	}
	}
	return GetClassName(descriptor->message_type());
	case FieldDescriptor::TYPE_DOUBLE:
	return "double";
	case FieldDescriptor::TYPE_FLOAT:
	return "float";
	case FieldDescriptor::TYPE_INT64:
	return "long";
	case FieldDescriptor::TYPE_UINT64:
	return "ulong";
	case FieldDescriptor::TYPE_INT32:
	return "int";
	case FieldDescriptor::TYPE_FIXED64:
	return "ulong";
	case FieldDescriptor::TYPE_FIXED32:
	return "uint";
	case FieldDescriptor::TYPE_BOOL:
	return "bool";
	case FieldDescriptor::TYPE_STRING:
	return "string";
	case FieldDescriptor::TYPE_BYTES:
	return "pb::ByteString";
	case FieldDescriptor::TYPE_UINT32:
	return "uint";
	case FieldDescriptor::TYPE_SFIXED32:
	return "int";
	case FieldDescriptor::TYPE_SFIXED64:
	return "long";
	case FieldDescriptor::TYPE_SINT32:
	return "int";
	case FieldDescriptor::TYPE_SINT64:
	return "long";
	default:
	GOOGLE_LOG(FATAL)<< "Unknown field type.";
	return "";
	}
	}

	bool FieldGeneratorBase::has_default_value() {
	switch (descriptor_->type()) {
	case FieldDescriptor::TYPE_ENUM:
	case FieldDescriptor::TYPE_MESSAGE:
	case FieldDescriptor::TYPE_GROUP:
	return true;
	case FieldDescriptor::TYPE_DOUBLE:
	return descriptor_->default_value_double() != 0.0;
	case FieldDescriptor::TYPE_FLOAT:
	return descriptor_->default_value_float() != 0.0;
	case FieldDescriptor::TYPE_INT64:
	return descriptor_->default_value_int64() != 0L;
	case FieldDescriptor::TYPE_UINT64:
	return descriptor_->default_value_uint64() != 0L;
	case FieldDescriptor::TYPE_INT32:
	return descriptor_->default_value_int32() != 0;
	case FieldDescriptor::TYPE_FIXED64:
	return descriptor_->default_value_uint64() != 0L;
	case FieldDescriptor::TYPE_FIXED32:
	return descriptor_->default_value_uint32() != 0;
	case FieldDescriptor::TYPE_BOOL:
	return descriptor_->default_value_bool();
	case FieldDescriptor::TYPE_STRING:
	return true;
	case FieldDescriptor::TYPE_BYTES:
	return true;
	case FieldDescriptor::TYPE_UINT32:
	return descriptor_->default_value_uint32() != 0;
	case FieldDescriptor::TYPE_SFIXED32:
	return descriptor_->default_value_int32() != 0;
	case FieldDescriptor::TYPE_SFIXED64:
	return descriptor_->default_value_int64() != 0L;
	case FieldDescriptor::TYPE_SINT32:
	return descriptor_->default_value_int32() != 0;
	case FieldDescriptor::TYPE_SINT64:
	return descriptor_->default_value_int64() != 0L;
	default:
	GOOGLE_LOG(FATAL)<< "Unknown field type.";
	return true;
	}
	}

	bool FieldGeneratorBase::is_nullable_type() {
	switch (descriptor_->type()) {
	case FieldDescriptor::TYPE_ENUM:
	case FieldDescriptor::TYPE_DOUBLE:
	case FieldDescriptor::TYPE_FLOAT:
	case FieldDescriptor::TYPE_INT64:
	case FieldDescriptor::TYPE_UINT64:
	case FieldDescriptor::TYPE_INT32:
	case FieldDescriptor::TYPE_FIXED64:
	case FieldDescriptor::TYPE_FIXED32:
	case FieldDescriptor::TYPE_BOOL:
	case FieldDescriptor::TYPE_UINT32:
	case FieldDescriptor::TYPE_SFIXED32:
	case FieldDescriptor::TYPE_SFIXED64:
	case FieldDescriptor::TYPE_SINT32:
	case FieldDescriptor::TYPE_SINT64:
	return false;

	case FieldDescriptor::TYPE_MESSAGE:
	case FieldDescriptor::TYPE_GROUP:
	case FieldDescriptor::TYPE_STRING:
	case FieldDescriptor::TYPE_BYTES:
	return true;

	default:
	GOOGLE_LOG(FATAL)<< "Unknown field type.";
	return true;
	}
	}

	bool AllPrintableAscii(const std::string& text) {
	for(int i = 0; i < text.size(); i++) {
	if (text[i] < 0x20 \|\| text[i] > 0x7e) {
	return false;
	}
	}
	return true;
	}

	std::string FieldGeneratorBase::GetStringDefaultValueInternal() {
	// No other default values needed for proto3...
	return "\"\"";
	}

	std::string FieldGeneratorBase::GetBytesDefaultValueInternal() {
	// No other default values needed for proto3...
	return "pb::ByteString.Empty";
	}

	std::string FieldGeneratorBase::default_value() {
	return default_value(descriptor_);
	}

	std::string FieldGeneratorBase::default_value(const FieldDescriptor* descriptor) {
	switch (descriptor->type()) {
	case FieldDescriptor::TYPE_ENUM:
	// All proto3 enums have a default value of 0, and there's an implicit conversion from the constant 0 to
	// any C# enum. This means we don't need to work out what we actually mapped the enum value name to.
	return "0";
	case FieldDescriptor::TYPE_MESSAGE:
	case FieldDescriptor::TYPE_GROUP:
	if (IsWrapperType(descriptor)) {
	const FieldDescriptor* wrapped_field = descriptor->message_type()->field(0);
	return default_value(wrapped_field);
	} else {
	return "null";
	}
	case FieldDescriptor::TYPE_DOUBLE: {
	double value = descriptor->default_value_double();
	if (value == std::numeric_limits<double>::infinity()) {
	return "double.PositiveInfinity";
	} else if (value == -std::numeric_limits<double>::infinity()) {
	return "double.NegativeInfinity";
	} else if (MathLimits<double>::IsNaN(value)) {
	return "double.NaN";
	}
	return SimpleDtoa(value) + "D";
	}
	case FieldDescriptor::TYPE_FLOAT: {
	float value = descriptor->default_value_float();
	if (value == std::numeric_limits<float>::infinity()) {
	return "float.PositiveInfinity";
	} else if (value == -std::numeric_limits<float>::infinity()) {
	return "float.NegativeInfinity";
	} else if (MathLimits<float>::IsNaN(value)) {
	return "float.NaN";
	}
	return SimpleFtoa(value) + "F";
	}
	case FieldDescriptor::TYPE_INT64:
	return SimpleItoa(descriptor->default_value_int64()) + "L";
	case FieldDescriptor::TYPE_UINT64:
	return SimpleItoa(descriptor->default_value_uint64()) + "UL";
	case FieldDescriptor::TYPE_INT32:
	return SimpleItoa(descriptor->default_value_int32());
	case FieldDescriptor::TYPE_FIXED64:
	return SimpleItoa(descriptor->default_value_uint64()) + "UL";
	case FieldDescriptor::TYPE_FIXED32:
	return SimpleItoa(descriptor->default_value_uint32());
	case FieldDescriptor::TYPE_BOOL:
	if (descriptor->default_value_bool()) {
	return "true";
	} else {
	return "false";
	}
	case FieldDescriptor::TYPE_STRING:
	return GetStringDefaultValueInternal();
	case FieldDescriptor::TYPE_BYTES:
	return GetBytesDefaultValueInternal();
	case FieldDescriptor::TYPE_UINT32:
	return SimpleItoa(descriptor->default_value_uint32());
	case FieldDescriptor::TYPE_SFIXED32:
	return SimpleItoa(descriptor->default_value_int32());
	case FieldDescriptor::TYPE_SFIXED64:
	return SimpleItoa(descriptor->default_value_int64()) + "L";
	case FieldDescriptor::TYPE_SINT32:
	return SimpleItoa(descriptor->default_value_int32());
	case FieldDescriptor::TYPE_SINT64:
	return SimpleItoa(descriptor->default_value_int64()) + "L";
	default:
	GOOGLE_LOG(FATAL)<< "Unknown field type.";
	return "";
	}
	}

	std::string FieldGeneratorBase::number() {
	return SimpleItoa(descriptor_->number());
	}

	std::string FieldGeneratorBase::capitalized_type_name() {
	switch (descriptor_->type()) {
	case FieldDescriptor::TYPE_ENUM:
	return "Enum";
	case FieldDescriptor::TYPE_MESSAGE:
	return "Message";
	case FieldDescriptor::TYPE_GROUP:
	return "Group";
	case FieldDescriptor::TYPE_DOUBLE:
	return "Double";
	case FieldDescriptor::TYPE_FLOAT:
	return "Float";
	case FieldDescriptor::TYPE_INT64:
	return "Int64";
	case FieldDescriptor::TYPE_UINT64:
	return "UInt64";
	case FieldDescriptor::TYPE_INT32:
	return "Int32";
	case FieldDescriptor::TYPE_FIXED64:
	return "Fixed64";
	case FieldDescriptor::TYPE_FIXED32:
	return "Fixed32";
	case FieldDescriptor::TYPE_BOOL:
	return "Bool";
	case FieldDescriptor::TYPE_STRING:
	return "String";
	case FieldDescriptor::TYPE_BYTES:
	return "Bytes";
	case FieldDescriptor::TYPE_UINT32:
	return "UInt32";
	case FieldDescriptor::TYPE_SFIXED32:
	return "SFixed32";
	case FieldDescriptor::TYPE_SFIXED64:
	return "SFixed64";
	case FieldDescriptor::TYPE_SINT32:
	return "SInt32";
	case FieldDescriptor::TYPE_SINT64:
	return "SInt64";
	default:
	GOOGLE_LOG(FATAL)<< "Unknown field type.";
	return "";
	}
	}

	} // namespace csharp
	} // namespace compiler
	} // namespace protobuf
	} // namespace google