src/google/protobuf/compiler/csharp/csharp_field_base.cc - third_party/github/protocolbuffers/protobuf - Git at Google

 // Protocol Buffers - Google's data interchange format
 // Copyright 2008 Google Inc.  All rights reserved.
 //
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file or at
 // https://developers.google.com/open-source/licenses/bsd

 #include "google/protobuf/compiler/csharp/csharp_field_base.h"

 #include <cmath>
 #include <limits>
 #include <sstream>
 #include <string>

 #include "google/protobuf/compiler/code_generator.h"
 #include "absl/log/absl_log.h"
 #include "google/protobuf/compiler/csharp/csharp_helpers.h"
 #include "google/protobuf/compiler/csharp/names.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/wire_format.h"

 // Must be last.
 #include "google/protobuf/port_def.inc"

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

 void FieldGeneratorBase::SetCommonFieldVariables(
     absl::flat_hash_map<absl::string_view, std::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());
   int part_tag_size = tag_size;
   if (descriptor_->type() == FieldDescriptor::TYPE_GROUP) {
     part_tag_size /= 2;
   }
   uint tag = internal::WireFormat::MakeTag(descriptor_);
   uint8_t tag_array[5];
   io::CodedOutputStream::WriteTagToArray(tag, tag_array);
   std::string tag_bytes = absl::StrCat(tag_array[0]);
   for (int i = 1; i < part_tag_size; i++) {
     absl::StrAppend(&tag_bytes, ", ", tag_array[i]);
   }

   (*variables)["tag"] = absl::StrCat(tag);
   (*variables)["tag_size"] = absl::StrCat(tag_size);
   (*variables)["tag_bytes"] = tag_bytes;

   if (descriptor_->type() == FieldDescriptor::Type::TYPE_GROUP) {
     tag = internal::WireFormatLite::MakeTag(
         descriptor_->number(),
         internal::WireFormatLite::WIRETYPE_END_GROUP);
     io::CodedOutputStream::WriteTagToArray(tag, tag_array);
     tag_bytes = absl::StrCat(tag_array[0]);
     for (int i = 1; i < part_tag_size; i++) {
       absl::StrAppend(&tag_bytes, ", ", tag_array[i]);
     }

     variables_["end_tag"] = absl::StrCat(tag);
     variables_["end_tag_bytes"] = tag_bytes;
   }

   (*variables)["access_level"] = "public";

   (*variables)["property_name"] = property_name();
   (*variables)["type_name"] = type_name();
   (*variables)["extended_type"] = GetClassName(descriptor_->containing_type());
   (*variables)["name"] = name();
   (*variables)["descriptor_name"] = descriptor_->name();
   (*variables)["default_value"] = default_value();
   (*variables)["capitalized_type_name"] = capitalized_type_name();
   (*variables)["number"] = number();
   if (has_default_value() && !SupportsPresenceApi(descriptor_)) {
     variables->insert({"name_def_message",
                        absl::StrCat((*variables)["name"],
                                     "_ = ", (*variables)["default_value"])});
   } else {
     variables->insert(
         {"name_def_message", absl::StrCat((*variables)["name"], "_")});
   }
   if (SupportsPresenceApi(descriptor_)) {
     variables->insert({"has_property_check",
                        absl::StrCat("Has", (*variables)["property_name"])});
     variables->insert(
         {"other_has_property_check",
          absl::StrCat("other.Has", (*variables)["property_name"])});
     variables->insert({"has_not_property_check",
                        absl::StrCat("!", (*variables)["has_property_check"])});
     variables->insert(
         {"other_has_not_property_check",
          absl::StrCat("!", (*variables)["other_has_property_check"])});
     if (presenceIndex_ != -1) {
         const int hasBitsNumber = presenceIndex_ / 32;
         const int hasBitsMask = 1 << (presenceIndex_ % 32);
         (*variables)["has_field_check"] = absl::StrCat(
             "(_hasBits", hasBitsNumber, " & ", hasBitsMask, ") != 0");
         (*variables)["set_has_field"] =
             absl::StrCat("_hasBits", hasBitsNumber, " |= ", hasBitsMask);
         (*variables)["clear_has_field"] =
             absl::StrCat("_hasBits", hasBitsNumber, " &= ~", hasBitsMask);
     }
   } else {
     variables->insert({"has_property_check",
                        absl::StrCat((*variables)["property_name"],
                                     " != ", (*variables)["default_value"])});
     variables->insert({"other_has_property_check",
                        absl::StrCat("other.", (*variables)["property_name"],
                                     " != ", (*variables)["default_value"])});
   }
 }

 void FieldGeneratorBase::SetCommonOneofFieldVariables(
     absl::flat_hash_map<absl::string_view, std::string>* variables) {
   (*variables)["oneof_name"] = oneof_name();
   if (SupportsPresenceApi(descriptor_)) {
     (*variables)["has_property_check"] = absl::StrCat("Has", property_name());
   } else {
     (*variables)["has_property_check"] =
         absl::StrCat(oneof_name(), "Case_ == ", oneof_property_name(),
                      "OneofCase.", oneof_case_name());
   }
   (*variables)["oneof_case_name"] = oneof_case_name();
   (*variables)["oneof_property_name"] = oneof_property_name();
 }

 FieldGeneratorBase::FieldGeneratorBase(const FieldDescriptor* descriptor,
                                        int presenceIndex, const Options* options)
     : SourceGeneratorBase(options),
       descriptor_(descriptor),
       presenceIndex_(presenceIndex) {
   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::GenerateExtensionCode(io::Printer* printer) {
   // No-op: only message fields, enum fields, primitives,
   // and repeated fields need this default is to not generate any code
 }

 void FieldGeneratorBase::GenerateParsingCode(io::Printer* printer, bool use_parse_context) {
   // for some field types the value of "use_parse_context" doesn't matter,
   // so we fallback to the default implementation.
   GenerateParsingCode(printer);
 }

 void FieldGeneratorBase::GenerateSerializationCode(io::Printer* printer, bool use_write_context) {
   // for some field types the value of "use_write_context" doesn't matter,
   // so we fallback to the default implementation.
   GenerateSerializationCode(printer);
 }

 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_case_name() {
   return GetOneofCaseName(descriptor_);
 }

 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);
         std::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 absl::StrCat(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:
       ABSL_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:
       ABSL_LOG(FATAL) << "Unknown field type.";
       return true;
   }
 }

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

 std::string FieldGeneratorBase::GetStringDefaultValueInternal(const FieldDescriptor* descriptor) {
     if (descriptor->default_value_string().empty())
         return "\"\"";
     return absl::StrCat(
         "global::System.Text.Encoding.UTF8.GetString(global::System."
         "Convert.FromBase64String(\"",
         StringToBase64(descriptor->default_value_string()), "\"), 0, ",
         descriptor->default_value_string().length(), ")");
 }

 std::string FieldGeneratorBase::GetBytesDefaultValueInternal(const FieldDescriptor* descriptor) {
     if (descriptor->default_value_string().empty())
         return "pb::ByteString.Empty";
     return absl::StrCat("pb::ByteString.FromBase64(\"",
                         StringToBase64(descriptor->default_value_string()),
                         "\")");
 }

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

 std::string FieldGeneratorBase::default_value(const FieldDescriptor* descriptor) {
   switch (descriptor->type()) {
     case FieldDescriptor::TYPE_ENUM:
       return absl::StrCat(
           GetClassName(descriptor->default_value_enum()->type()), ".",
           GetEnumValueName(descriptor->default_value_enum()->type()->name(),
                            descriptor->default_value_enum()->name()));
     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 (std::isnan(value)) {
         return "double.NaN";
       }
       return absl::StrCat(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 (std::isnan(value)) {
         return "float.NaN";
       }
       return absl::StrCat(value, "F");
     }
     case FieldDescriptor::TYPE_INT64:
       return absl::StrCat(descriptor->default_value_int64(), "L");
     case FieldDescriptor::TYPE_UINT64:
       return absl::StrCat(descriptor->default_value_uint64(), "UL");
     case FieldDescriptor::TYPE_INT32:
       return absl::StrCat(descriptor->default_value_int32());
     case FieldDescriptor::TYPE_FIXED64:
       return absl::StrCat(descriptor->default_value_uint64(), "UL");
     case FieldDescriptor::TYPE_FIXED32:
       return absl::StrCat(descriptor->default_value_uint32());
     case FieldDescriptor::TYPE_BOOL:
       if (descriptor->default_value_bool()) {
         return "true";
       } else {
         return "false";
       }
     case FieldDescriptor::TYPE_STRING:
       return GetStringDefaultValueInternal(descriptor);
     case FieldDescriptor::TYPE_BYTES:
       return GetBytesDefaultValueInternal(descriptor);
     case FieldDescriptor::TYPE_UINT32:
       return absl::StrCat(descriptor->default_value_uint32());
     case FieldDescriptor::TYPE_SFIXED32:
       return absl::StrCat(descriptor->default_value_int32());
     case FieldDescriptor::TYPE_SFIXED64:
       return absl::StrCat(descriptor->default_value_int64(), "L");
     case FieldDescriptor::TYPE_SINT32:
       return absl::StrCat(descriptor->default_value_int32());
     case FieldDescriptor::TYPE_SINT64:
       return absl::StrCat(descriptor->default_value_int64(), "L");
     default:
       ABSL_LOG(FATAL) << "Unknown field type.";
       return "";
   }
 }

 std::string FieldGeneratorBase::number() {
   return absl::StrCat(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:
       ABSL_LOG(FATAL) << "Unknown field type.";
       return "";
   }
 }

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

 #include "google/protobuf/port_undef.inc"
	// Protocol Buffers - Google's data interchange format
	// Copyright 2008 Google Inc. All rights reserved.
	//
	// Use of this source code is governed by a BSD-style
	// license that can be found in the LICENSE file or at
	// https://developers.google.com/open-source/licenses/bsd

	#include "google/protobuf/compiler/csharp/csharp_field_base.h"

	#include <cmath>
	#include <limits>
	#include <sstream>
	#include <string>

	#include "google/protobuf/compiler/code_generator.h"
	#include "absl/log/absl_log.h"
	#include "google/protobuf/compiler/csharp/csharp_helpers.h"
	#include "google/protobuf/compiler/csharp/names.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/wire_format.h"

	// Must be last.
	#include "google/protobuf/port_def.inc"

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

	void FieldGeneratorBase::SetCommonFieldVariables(
	absl::flat_hash_map<absl::string_view, std::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());
	int part_tag_size = tag_size;
	if (descriptor_->type() == FieldDescriptor::TYPE_GROUP) {
	part_tag_size /= 2;
	}
	uint tag = internal::WireFormat::MakeTag(descriptor_);
	uint8_t tag_array[5];
	io::CodedOutputStream::WriteTagToArray(tag, tag_array);
	std::string tag_bytes = absl::StrCat(tag_array[0]);
	for (int i = 1; i < part_tag_size; i++) {
	absl::StrAppend(&tag_bytes, ", ", tag_array[i]);
	}

	(*variables)["tag"] = absl::StrCat(tag);
	(*variables)["tag_size"] = absl::StrCat(tag_size);
	(*variables)["tag_bytes"] = tag_bytes;

	if (descriptor_->type() == FieldDescriptor::Type::TYPE_GROUP) {
	tag = internal::WireFormatLite::MakeTag(
	descriptor_->number(),
	internal::WireFormatLite::WIRETYPE_END_GROUP);
	io::CodedOutputStream::WriteTagToArray(tag, tag_array);
	tag_bytes = absl::StrCat(tag_array[0]);
	for (int i = 1; i < part_tag_size; i++) {
	absl::StrAppend(&tag_bytes, ", ", tag_array[i]);
	}

	variables_["end_tag"] = absl::StrCat(tag);
	variables_["end_tag_bytes"] = tag_bytes;
	}

	(*variables)["access_level"] = "public";

	(*variables)["property_name"] = property_name();
	(*variables)["type_name"] = type_name();
	(*variables)["extended_type"] = GetClassName(descriptor_->containing_type());
	(*variables)["name"] = name();
	(*variables)["descriptor_name"] = descriptor_->name();
	(*variables)["default_value"] = default_value();
	(*variables)["capitalized_type_name"] = capitalized_type_name();
	(*variables)["number"] = number();
	if (has_default_value() && !SupportsPresenceApi(descriptor_)) {
	variables->insert({"name_def_message",
	absl::StrCat((*variables)["name"],
	"_ = ", (*variables)["default_value"])});
	} else {
	variables->insert(
	{"name_def_message", absl::StrCat((*variables)["name"], "_")});
	}
	if (SupportsPresenceApi(descriptor_)) {
	variables->insert({"has_property_check",
	absl::StrCat("Has", (*variables)["property_name"])});
	variables->insert(
	{"other_has_property_check",
	absl::StrCat("other.Has", (*variables)["property_name"])});
	variables->insert({"has_not_property_check",
	absl::StrCat("!", (*variables)["has_property_check"])});
	variables->insert(
	{"other_has_not_property_check",
	absl::StrCat("!", (*variables)["other_has_property_check"])});
	if (presenceIndex_ != -1) {
	const int hasBitsNumber = presenceIndex_ / 32;
	const int hasBitsMask = 1 << (presenceIndex_ % 32);
	(*variables)["has_field_check"] = absl::StrCat(
	"(_hasBits", hasBitsNumber, " & ", hasBitsMask, ") != 0");
	(*variables)["set_has_field"] =
	absl::StrCat("_hasBits", hasBitsNumber, " \|= ", hasBitsMask);
	(*variables)["clear_has_field"] =
	absl::StrCat("_hasBits", hasBitsNumber, " &= ~", hasBitsMask);
	}
	} else {
	variables->insert({"has_property_check",
	absl::StrCat((*variables)["property_name"],
	" != ", (*variables)["default_value"])});
	variables->insert({"other_has_property_check",
	absl::StrCat("other.", (*variables)["property_name"],
	" != ", (*variables)["default_value"])});
	}
	}

	void FieldGeneratorBase::SetCommonOneofFieldVariables(
	absl::flat_hash_map<absl::string_view, std::string>* variables) {
	(*variables)["oneof_name"] = oneof_name();
	if (SupportsPresenceApi(descriptor_)) {
	(*variables)["has_property_check"] = absl::StrCat("Has", property_name());
	} else {
	(*variables)["has_property_check"] =
	absl::StrCat(oneof_name(), "Case_ == ", oneof_property_name(),
	"OneofCase.", oneof_case_name());
	}
	(*variables)["oneof_case_name"] = oneof_case_name();
	(*variables)["oneof_property_name"] = oneof_property_name();
	}

	FieldGeneratorBase::FieldGeneratorBase(const FieldDescriptor* descriptor,
	int presenceIndex, const Options* options)
	: SourceGeneratorBase(options),
	descriptor_(descriptor),
	presenceIndex_(presenceIndex) {
	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::GenerateExtensionCode(io::Printer* printer) {
	// No-op: only message fields, enum fields, primitives,
	// and repeated fields need this default is to not generate any code
	}

	void FieldGeneratorBase::GenerateParsingCode(io::Printer* printer, bool use_parse_context) {
	// for some field types the value of "use_parse_context" doesn't matter,
	// so we fallback to the default implementation.
	GenerateParsingCode(printer);
	}

	void FieldGeneratorBase::GenerateSerializationCode(io::Printer* printer, bool use_write_context) {
	// for some field types the value of "use_write_context" doesn't matter,
	// so we fallback to the default implementation.
	GenerateSerializationCode(printer);
	}

	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_case_name() {
	return GetOneofCaseName(descriptor_);
	}

	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);
	std::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 absl::StrCat(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:
	ABSL_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:
	ABSL_LOG(FATAL) << "Unknown field type.";
	return true;
	}
	}

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

	std::string FieldGeneratorBase::GetStringDefaultValueInternal(const FieldDescriptor* descriptor) {
	if (descriptor->default_value_string().empty())
	return "\"\"";
	return absl::StrCat(
	"global::System.Text.Encoding.UTF8.GetString(global::System."
	"Convert.FromBase64String(\"",
	StringToBase64(descriptor->default_value_string()), "\"), 0, ",
	descriptor->default_value_string().length(), ")");
	}

	std::string FieldGeneratorBase::GetBytesDefaultValueInternal(const FieldDescriptor* descriptor) {
	if (descriptor->default_value_string().empty())
	return "pb::ByteString.Empty";
	return absl::StrCat("pb::ByteString.FromBase64(\"",
	StringToBase64(descriptor->default_value_string()),
	"\")");
	}

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

	std::string FieldGeneratorBase::default_value(const FieldDescriptor* descriptor) {
	switch (descriptor->type()) {
	case FieldDescriptor::TYPE_ENUM:
	return absl::StrCat(
	GetClassName(descriptor->default_value_enum()->type()), ".",
	GetEnumValueName(descriptor->default_value_enum()->type()->name(),
	descriptor->default_value_enum()->name()));
	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 (std::isnan(value)) {
	return "double.NaN";
	}
	return absl::StrCat(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 (std::isnan(value)) {
	return "float.NaN";
	}
	return absl::StrCat(value, "F");
	}
	case FieldDescriptor::TYPE_INT64:
	return absl::StrCat(descriptor->default_value_int64(), "L");
	case FieldDescriptor::TYPE_UINT64:
	return absl::StrCat(descriptor->default_value_uint64(), "UL");
	case FieldDescriptor::TYPE_INT32:
	return absl::StrCat(descriptor->default_value_int32());
	case FieldDescriptor::TYPE_FIXED64:
	return absl::StrCat(descriptor->default_value_uint64(), "UL");
	case FieldDescriptor::TYPE_FIXED32:
	return absl::StrCat(descriptor->default_value_uint32());
	case FieldDescriptor::TYPE_BOOL:
	if (descriptor->default_value_bool()) {
	return "true";
	} else {
	return "false";
	}
	case FieldDescriptor::TYPE_STRING:
	return GetStringDefaultValueInternal(descriptor);
	case FieldDescriptor::TYPE_BYTES:
	return GetBytesDefaultValueInternal(descriptor);
	case FieldDescriptor::TYPE_UINT32:
	return absl::StrCat(descriptor->default_value_uint32());
	case FieldDescriptor::TYPE_SFIXED32:
	return absl::StrCat(descriptor->default_value_int32());
	case FieldDescriptor::TYPE_SFIXED64:
	return absl::StrCat(descriptor->default_value_int64(), "L");
	case FieldDescriptor::TYPE_SINT32:
	return absl::StrCat(descriptor->default_value_int32());
	case FieldDescriptor::TYPE_SINT64:
	return absl::StrCat(descriptor->default_value_int64(), "L");
	default:
	ABSL_LOG(FATAL) << "Unknown field type.";
	return "";
	}
	}

	std::string FieldGeneratorBase::number() {
	return absl::StrCat(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:
	ABSL_LOG(FATAL) << "Unknown field type.";
	return "";
	}
	}

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

	#include "google/protobuf/port_undef.inc"