path: root/contrib/libs/protoc/src/google/protobuf/compiler/java/java_file.cc

// 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. 
 
// Author: kenton@google.com (Kenton Varda) 
//  Based on original Protocol Buffers design by 
//  Sanjay Ghemawat, Jeff Dean, and others. 
 
#include <google/protobuf/compiler/java/java_file.h>
 
#include <memory> 
#include <set> 
 
#include <google/protobuf/compiler/java/java_context.h>
#include <google/protobuf/compiler/java/java_enum.h>
#include <google/protobuf/compiler/java/java_enum_lite.h>
#include <google/protobuf/compiler/java/java_extension.h>
#include <google/protobuf/compiler/java/java_generator_factory.h>
#include <google/protobuf/compiler/java/java_helpers.h>
#include <google/protobuf/compiler/java/java_message.h>
#include <google/protobuf/compiler/java/java_name_resolver.h>
#include <google/protobuf/compiler/java/java_service.h>
#include <google/protobuf/compiler/java/java_shared_code_generator.h>
#include <google/protobuf/compiler/code_generator.h>
#include <google/protobuf/descriptor.pb.h>
#include <google/protobuf/io/printer.h>
#include <google/protobuf/io/zero_copy_stream.h>
#include <google/protobuf/dynamic_message.h>
#include <google/protobuf/stubs/strutil.h>
 
namespace google { 
namespace protobuf { 
namespace compiler { 
namespace java { 
 
namespace { 
 
struct FieldDescriptorCompare { 
  bool operator()(const FieldDescriptor* f1, const FieldDescriptor* f2) const {
    if (f1 == NULL) {
      return false; 
    } 
    if (f2 == NULL) {
      return true; 
    } 
    return f1->full_name() < f2->full_name(); 
  } 
}; 
 
typedef std::set<const FieldDescriptor*, FieldDescriptorCompare>
    FieldDescriptorSet;
 
// Recursively searches the given message to collect extensions. 
// Returns true if all the extensions can be recognized. The extensions will be 
// appended in to the extensions parameter. 
// Returns false when there are unknown fields, in which case the data in the 
// extensions output parameter is not reliable and should be discarded. 
bool CollectExtensions(const Message& message, FieldDescriptorSet* extensions) {
  const Reflection* reflection = message.GetReflection(); 
 
  // There are unknown fields that could be extensions, thus this call fails. 
  if (reflection->GetUnknownFields(message).field_count() > 0) return false; 
 
  std::vector<const FieldDescriptor*> fields;
  reflection->ListFields(message, &fields); 
 
  for (int i = 0; i < fields.size(); i++) { 
    if (fields[i]->is_extension()) {
      extensions->insert(fields[i]);
    }
 
    if (GetJavaType(fields[i]) == JAVATYPE_MESSAGE) { 
      if (fields[i]->is_repeated()) { 
        int size = reflection->FieldSize(message, fields[i]); 
        for (int j = 0; j < size; j++) { 
          const Message& sub_message = 
              reflection->GetRepeatedMessage(message, fields[i], j);
          if (!CollectExtensions(sub_message, extensions)) return false; 
        } 
      } else { 
        const Message& sub_message = reflection->GetMessage(message, fields[i]); 
        if (!CollectExtensions(sub_message, extensions)) return false; 
      } 
    } 
  } 
 
  return true; 
} 
 
// Finds all extensions in the given message and its sub-messages.  If the 
// message contains unknown fields (which could be extensions), then those 
// extensions are defined in alternate_pool. 
// The message will be converted to a DynamicMessage backed by alternate_pool 
// in order to handle this case. 
void CollectExtensions(const FileDescriptorProto& file_proto, 
                       const DescriptorPool& alternate_pool, 
                       FieldDescriptorSet* extensions, 
                       const TProtoStringType& file_data) {
  if (!CollectExtensions(file_proto, extensions)) { 
    // There are unknown fields in the file_proto, which are probably 
    // extensions. We need to parse the data into a dynamic message based on the 
    // builder-pool to find out all extensions. 
    const Descriptor* file_proto_desc = alternate_pool.FindMessageTypeByName( 
        file_proto.GetDescriptor()->full_name()); 
    GOOGLE_CHECK(file_proto_desc) 
        << "Find unknown fields in FileDescriptorProto when building " 
        << file_proto.name() 
        << ". It's likely that those fields are custom options, however, " 
           "descriptor.proto is not in the transitive dependencies. " 
           "This normally should not happen. Please report a bug."; 
    DynamicMessageFactory factory; 
    std::unique_ptr<Message> dynamic_file_proto(
        factory.GetPrototype(file_proto_desc)->New()); 
    GOOGLE_CHECK(dynamic_file_proto.get() != NULL); 
    GOOGLE_CHECK(dynamic_file_proto->ParseFromString(file_data)); 
 
    // Collect the extensions again from the dynamic message. There should be no 
    // more unknown fields this time, i.e. all the custom options should be 
    // parsed as extensions now. 
    extensions->clear(); 
    GOOGLE_CHECK(CollectExtensions(*dynamic_file_proto, extensions)) 
        << "Find unknown fields in FileDescriptorProto when building " 
        << file_proto.name() 
        << ". It's likely that those fields are custom options, however, " 
           "those options cannot be recognized in the builder pool. " 
           "This normally should not happen. Please report a bug."; 
  } 
} 
 
// Our static initialization methods can become very, very large. 
// So large that if we aren't careful we end up blowing the JVM's 
// 64K bytes of bytecode/method. Fortunately, since these static 
// methods are executed only once near the beginning of a program, 
// there's usually plenty of stack space available and we can 
// extend our methods by simply chaining them to another method 
// with a tail call. This inserts the sequence call-next-method, 
// end this one, begin-next-method as needed. 
void MaybeRestartJavaMethod(io::Printer* printer, int* bytecode_estimate,
                            int* method_num, const char* chain_statement,
                            const char* method_decl) {
  // The goal here is to stay under 64K bytes of jvm bytecode/method, 
  // since otherwise we hit a hardcoded limit in the jvm and javac will 
  // then fail with the error "code too large". This limit lets our 
  // estimates be off by a factor of two and still we're okay. 
  static const int bytesPerMethod = kMaxStaticSize; 
 
  if ((*bytecode_estimate) > bytesPerMethod) { 
    ++(*method_num); 
    printer->Print(chain_statement, "method_num", StrCat(*method_num));
    printer->Outdent(); 
    printer->Print("}\n"); 
    printer->Print(method_decl, "method_num", StrCat(*method_num));
    printer->Indent(); 
    *bytecode_estimate = 0; 
  } 
} 
}  // namespace 
 
FileGenerator::FileGenerator(const FileDescriptor* file, const Options& options, 
                             bool immutable_api) 
    : file_(file), 
      java_package_(FileJavaPackage(file, immutable_api)), 
      message_generators_(file->message_type_count()),
      extension_generators_(file->extension_count()),
      context_(new Context(file, options)), 
      name_resolver_(context_->GetNameResolver()), 
      options_(options), 
      immutable_api_(immutable_api) { 
  classname_ = name_resolver_->GetFileClassName(file, immutable_api); 
  generator_factory_.reset(new ImmutableGeneratorFactory(context_.get()));
  for (int i = 0; i < file_->message_type_count(); ++i) { 
    message_generators_[i].reset( 
        generator_factory_->NewMessageGenerator(file_->message_type(i))); 
  } 
  for (int i = 0; i < file_->extension_count(); ++i) { 
    extension_generators_[i].reset( 
        generator_factory_->NewExtensionGenerator(file_->extension(i))); 
  } 
} 
 
FileGenerator::~FileGenerator() {} 
 
bool FileGenerator::Validate(TProtoStringType* error) {
  // Check that no class name matches the file's class name.  This is a common 
  // problem that leads to Java compile errors that can be hard to understand. 
  // It's especially bad when using the java_multiple_files, since we would 
  // end up overwriting the outer class with one of the inner ones. 
  if (name_resolver_->HasConflictingClassName(file_, classname_,
                                              NameEquality::EXACT_EQUAL)) {
    error->assign(file_->name()); 
    error->append( 
        ": Cannot generate Java output because the file's outer class name, "
        "\"");
    error->append(classname_); 
    error->append( 
        "\", matches the name of one of the types declared inside it.  "
        "Please either rename the type or use the java_outer_classname "
        "option to specify a different outer class name for the .proto file.");
    return false; 
  } 
  // Similar to the check above, but ignore the case this time. This is not a
  // problem on Linux, but will lead to Java compile errors on Windows / Mac
  // because filenames are case-insensitive on those platforms.
  if (name_resolver_->HasConflictingClassName(
          file_, classname_, NameEquality::EQUAL_IGNORE_CASE)) {
    GOOGLE_LOG(WARNING)
        << file_->name() << ": The file's outer class name, \"" << classname_
        << "\", matches the name of one of the types declared inside it when "
        << "case is ignored. This can cause compilation issues on Windows / "
        << "MacOS. Please either rename the type or use the "
        << "java_outer_classname option to specify a different outer class "
        << "name for the .proto file to be safe.";
  }

  // Print a warning if optimize_for = LITE_RUNTIME is used.
  if (file_->options().optimize_for() == FileOptions::LITE_RUNTIME &&
      !options_.enforce_lite) {
    GOOGLE_LOG(WARNING)
        << "The optimize_for = LITE_RUNTIME option is no longer supported by "
        << "protobuf Java code generator and is ignored--protoc will always "
        << "generate full runtime code for Java. To use Java Lite runtime, "
        << "users should use the Java Lite plugin instead. See:\n"
        << "  "
           "https://github.com/protocolbuffers/protobuf/blob/master/java/"
           "lite.md";
  }
  return true; 
} 
 
void FileGenerator::Generate(io::Printer* printer) { 
  // We don't import anything because we refer to all classes by their 
  // fully-qualified names in the generated source. 
  printer->Print( 
      "// Generated by the protocol buffer compiler.  DO NOT EDIT!\n"
      "// source: $filename$\n"
      "\n",
      "filename", file_->name());
  if (!java_package_.empty()) { 
    printer->Print( 
        "package $package$;\n"
        "\n",
        "package", java_package_);
  } 
  PrintGeneratedAnnotation( 
      printer, '$', options_.annotate_code ? classname_ + ".java.pb.meta" : ""); 

  printer->Print( 
      "$deprecation$public final class $classname$ {\n"
      "  private $ctor$() {}\n", 
      "deprecation",
      file_->options().deprecated() ? "@java.lang.Deprecated " : "",
      "classname", classname_, "ctor", classname_); 
  printer->Annotate("classname", file_->name()); 
  printer->Indent(); 
 
  // ----------------------------------------------------------------- 
 
  printer->Print( 
      "public static void registerAllExtensions(\n"
      "    com.google.protobuf.ExtensionRegistryLite registry) {\n");
 
  printer->Indent(); 
 
  for (int i = 0; i < file_->extension_count(); i++) { 
    extension_generators_[i]->GenerateRegistrationCode(printer); 
  } 
 
  for (int i = 0; i < file_->message_type_count(); i++) { 
    message_generators_[i]->GenerateExtensionRegistrationCode(printer); 
  } 
 
  printer->Outdent(); 
  printer->Print("}\n");
  if (HasDescriptorMethods(file_, context_->EnforceLite())) { 
    // Overload registerAllExtensions for the non-lite usage to 
    // redundantly maintain the original signature (this is 
    // redundant because ExtensionRegistryLite now invokes 
    // ExtensionRegistry in the non-lite usage). Intent is 
    // to remove this in the future. 
    printer->Print( 
        "\n"
        "public static void registerAllExtensions(\n"
        "    com.google.protobuf.ExtensionRegistry registry) {\n"
        "  registerAllExtensions(\n"
        "      (com.google.protobuf.ExtensionRegistryLite) registry);\n"
        "}\n");
  } 
 
  // ----------------------------------------------------------------- 
 
  if (!MultipleJavaFiles(file_, immutable_api_)) { 
    for (int i = 0; i < file_->enum_type_count(); i++) { 
      if (HasDescriptorMethods(file_, context_->EnforceLite())) { 
        EnumGenerator(file_->enum_type(i), immutable_api_, context_.get()) 
            .Generate(printer); 
      } else { 
        EnumLiteGenerator(file_->enum_type(i), immutable_api_, context_.get()) 
            .Generate(printer); 
      } 
    } 
    for (int i = 0; i < file_->message_type_count(); i++) { 
      message_generators_[i]->GenerateInterface(printer); 
      message_generators_[i]->Generate(printer); 
    } 
    if (HasGenericServices(file_, context_->EnforceLite())) { 
      for (int i = 0; i < file_->service_count(); i++) { 
        std::unique_ptr<ServiceGenerator> generator(
            generator_factory_->NewServiceGenerator(file_->service(i))); 
        generator->Generate(printer); 
      } 
    } 
  } 
 
  // Extensions must be generated in the outer class since they are values, 
  // not classes. 
  for (int i = 0; i < file_->extension_count(); i++) { 
    extension_generators_[i]->Generate(printer); 
  } 
 
  // Static variables. We'd like them to be final if possible, but due to 
  // the JVM's 64k size limit on static blocks, we have to initialize some 
  // of them in methods; thus they cannot be final. 
  int static_block_bytecode_estimate = 0; 
  for (int i = 0; i < file_->message_type_count(); i++) { 
    message_generators_[i]->GenerateStaticVariables( 
        printer, &static_block_bytecode_estimate); 
  } 
 
  printer->Print("\n"); 
 
  if (HasDescriptorMethods(file_, context_->EnforceLite())) { 
    if (immutable_api_) { 
      GenerateDescriptorInitializationCodeForImmutable(printer); 
    } else { 
      GenerateDescriptorInitializationCodeForMutable(printer); 
    } 
  } else { 
    printer->Print("static {\n");
    printer->Indent(); 
    int bytecode_estimate = 0; 
    int method_num = 0; 
 
    for (int i = 0; i < file_->message_type_count(); i++) { 
      bytecode_estimate +=
          message_generators_[i]->GenerateStaticVariableInitializers(printer);
      MaybeRestartJavaMethod( 
          printer, &bytecode_estimate, &method_num,
          "_clinit_autosplit_$method_num$();\n",
          "private static void _clinit_autosplit_$method_num$() {\n");
    } 
 
    printer->Outdent(); 
    printer->Print("}\n");
  } 
 
  printer->Print( 
      "\n"
      "// @@protoc_insertion_point(outer_class_scope)\n");
 
  printer->Outdent(); 
  printer->Print("}\n"); 
} 
 
void FileGenerator::GenerateDescriptorInitializationCodeForImmutable( 
    io::Printer* printer) { 
  printer->Print( 
      "public static com.google.protobuf.Descriptors.FileDescriptor\n"
      "    getDescriptor() {\n"
      "  return descriptor;\n"
      "}\n"
      "private static $final$ com.google.protobuf.Descriptors.FileDescriptor\n"
      "    descriptor;\n"
      "static {\n",
      // TODO(dweis): Mark this as final.
      "final", "");
  printer->Indent(); 
 
  SharedCodeGenerator shared_code_generator(file_, options_); 
  shared_code_generator.GenerateDescriptors(printer); 
 
  int bytecode_estimate = 0; 
  int method_num = 0; 
 
  for (int i = 0; i < file_->message_type_count(); i++) { 
    bytecode_estimate +=
        message_generators_[i]->GenerateStaticVariableInitializers(printer);
    MaybeRestartJavaMethod( 
        printer, &bytecode_estimate, &method_num,
        "_clinit_autosplit_dinit_$method_num$();\n",
        "private static void _clinit_autosplit_dinit_$method_num$() {\n");
  } 
  for (int i = 0; i < file_->extension_count(); i++) { 
    bytecode_estimate +=
        extension_generators_[i]->GenerateNonNestedInitializationCode(printer);
    MaybeRestartJavaMethod( 
        printer, &bytecode_estimate, &method_num,
        "_clinit_autosplit_dinit_$method_num$();\n",
        "private static void _clinit_autosplit_dinit_$method_num$() {\n");
  } 
 
  // Proto compiler builds a DescriptorPool, which holds all the descriptors to 
  // generate, when processing the ".proto" files. We call this DescriptorPool 
  // the parsed pool (a.k.a. file_->pool()). 
  // 
  // Note that when users try to extend the (.*)DescriptorProto in their 
  // ".proto" files, it does not affect the pre-built FileDescriptorProto class 
  // in proto compiler. When we put the descriptor data in the file_proto, those 
  // extensions become unknown fields. 
  // 
  // Now we need to find out all the extension value to the (.*)DescriptorProto 
  // in the file_proto message, and prepare an ExtensionRegistry to return. 
  // 
  // To find those extensions, we need to parse the data into a dynamic message 
  // of the FileDescriptor based on the builder-pool, then we can use 
  // reflections to find all extension fields 
  FileDescriptorProto file_proto; 
  file_->CopyTo(&file_proto); 
  TProtoStringType file_data;
  file_proto.SerializeToString(&file_data); 
  FieldDescriptorSet extensions; 
  CollectExtensions(file_proto, *file_->pool(), &extensions, file_data); 
 
  if (extensions.size() > 0) { 
    // Must construct an ExtensionRegistry containing all existing extensions 
    // and use it to parse the descriptor data again to recognize extensions. 
    printer->Print( 
        "com.google.protobuf.ExtensionRegistry registry =\n"
        "    com.google.protobuf.ExtensionRegistry.newInstance();\n");
    FieldDescriptorSet::iterator it; 
    for (it = extensions.begin(); it != extensions.end(); it++) { 
      std::unique_ptr<ExtensionGenerator> generator(
          generator_factory_->NewExtensionGenerator(*it)); 
      bytecode_estimate += generator->GenerateRegistrationCode(printer); 
      MaybeRestartJavaMethod( 
          printer, &bytecode_estimate, &method_num,
          "_clinit_autosplit_dinit_$method_num$(registry);\n",
          "private static void _clinit_autosplit_dinit_$method_num$(\n"
          "    com.google.protobuf.ExtensionRegistry registry) {\n");
    } 
    printer->Print( 
        "com.google.protobuf.Descriptors.FileDescriptor\n"
        "    .internalUpdateFileDescriptor(descriptor, registry);\n");
  } 
 
  // Force descriptor initialization of all dependencies. 
  for (int i = 0; i < file_->dependency_count(); i++) { 
    if (ShouldIncludeDependency(file_->dependency(i), true)) { 
      TProtoStringType dependency =
          name_resolver_->GetImmutableClassName(file_->dependency(i)); 
      printer->Print("$dependency$.getDescriptor();\n", "dependency",
                     dependency);
    } 
  } 
 
  printer->Outdent(); 
  printer->Print("}\n");
} 
 
void FileGenerator::GenerateDescriptorInitializationCodeForMutable(
    io::Printer* printer) {
  printer->Print( 
      "public static com.google.protobuf.Descriptors.FileDescriptor\n"
      "    getDescriptor() {\n"
      "  return descriptor;\n"
      "}\n"
      "private static final com.google.protobuf.Descriptors.FileDescriptor\n"
      "    descriptor;\n"
      "static {\n");
  printer->Indent(); 
 
  printer->Print( 
      "descriptor = $immutable_package$.$descriptor_classname$.descriptor;\n",
      "immutable_package", FileJavaPackage(file_, true), "descriptor_classname",
      name_resolver_->GetDescriptorClassName(file_));
 
  for (int i = 0; i < file_->message_type_count(); i++) { 
    message_generators_[i]->GenerateStaticVariableInitializers(printer); 
  } 
  for (int i = 0; i < file_->extension_count(); i++) { 
    extension_generators_[i]->GenerateNonNestedInitializationCode(printer); 
  } 
 
  // Check if custom options exist. If any, try to load immutable classes since 
  // custom options are only represented with immutable messages. 
  FileDescriptorProto file_proto; 
  file_->CopyTo(&file_proto); 
  TProtoStringType file_data;
  file_proto.SerializeToString(&file_data); 
  FieldDescriptorSet extensions; 
  CollectExtensions(file_proto, *file_->pool(), &extensions, file_data); 
 
  if (extensions.size() > 0) { 
    // Try to load immutable messages' outer class. Its initialization code 
    // will take care of interpreting custom options. 
    printer->Print( 
        "try {\n"
        // Note that we have to load the immutable class dynamically here as
        // we want the mutable code to be independent from the immutable code
        // at compile time. It is required to implement dual-compile for
        // mutable and immutable API in blaze.
        "  java.lang.Class<?> immutableClass = java.lang.Class.forName(\n"
        "      \"$immutable_classname$\");\n"
        "} catch (java.lang.ClassNotFoundException e) {\n",
        "immutable_classname", name_resolver_->GetImmutableClassName(file_));
    printer->Indent();

    // The immutable class can not be found. We try our best to collect all
    // custom option extensions to interpret the custom options.
    printer->Print(
        "com.google.protobuf.ExtensionRegistry registry =\n"
        "    com.google.protobuf.ExtensionRegistry.newInstance();\n"
        "com.google.protobuf.MessageLite defaultExtensionInstance = null;\n");
    FieldDescriptorSet::iterator it;
    for (it = extensions.begin(); it != extensions.end(); it++) {
      const FieldDescriptor* field = *it;
      TProtoStringType scope;
      if (field->extension_scope() != NULL) {
        scope = name_resolver_->GetMutableClassName(field->extension_scope()) +
                ".getDescriptor()";
      } else {
        scope = FileJavaPackage(field->file(), true) + "." +
                name_resolver_->GetDescriptorClassName(field->file()) +
                ".descriptor";
      }
      if (field->cpp_type() == FieldDescriptor::CPPTYPE_MESSAGE) {
        printer->Print(
            "defaultExtensionInstance = com.google.protobuf.Internal\n"
            "    .getDefaultInstance(\"$class$\");\n"
            "if (defaultExtensionInstance != null) {\n"
            "  registry.add(\n"
            "      $scope$.getExtensions().get($index$),\n"
            "      (com.google.protobuf.Message) defaultExtensionInstance);\n"
            "}\n",
            "scope", scope, "index", StrCat(field->index()), "class",
            name_resolver_->GetImmutableClassName(field->message_type()));
      } else {
        printer->Print("registry.add($scope$.getExtensions().get($index$));\n",
                       "scope", scope, "index", StrCat(field->index()));
      }
    }
    printer->Print(
        "com.google.protobuf.Descriptors.FileDescriptor\n"
        "    .internalUpdateFileDescriptor(descriptor, registry);\n");

    printer->Outdent();
    printer->Print("}\n");
  } 
 
  // Force descriptor initialization of all dependencies. 
  for (int i = 0; i < file_->dependency_count(); i++) { 
    if (ShouldIncludeDependency(file_->dependency(i), false)) { 
      TProtoStringType dependency =
          name_resolver_->GetMutableClassName(file_->dependency(i));
      printer->Print("$dependency$.getDescriptor();\n", "dependency",
                     dependency);
    } 
  } 
 
  printer->Outdent(); 
  printer->Print("}\n");
} 
 
template <typename GeneratorClass, typename DescriptorClass> 
static void GenerateSibling(
    const TProtoStringType& package_dir, const TProtoStringType& java_package,
    const DescriptorClass* descriptor, GeneratorContext* context,
    std::vector<TProtoStringType>* file_list, bool annotate_code,
    std::vector<TProtoStringType>* annotation_list, const TProtoStringType& name_suffix,
    GeneratorClass* generator,
    void (GeneratorClass::*pfn)(io::Printer* printer)) {
  TProtoStringType filename =
      package_dir + descriptor->name() + name_suffix + ".java";
  file_list->push_back(filename); 
  TProtoStringType info_full_path = filename + ".pb.meta";
  GeneratedCodeInfo annotations; 
  io::AnnotationProtoCollector<GeneratedCodeInfo> annotation_collector( 
      &annotations); 
 
  std::unique_ptr<io::ZeroCopyOutputStream> output(context->Open(filename));
  io::Printer printer(output.get(), '$', 
                      annotate_code ? &annotation_collector : NULL); 
 
  printer.Print( 
      "// Generated by the protocol buffer compiler.  DO NOT EDIT!\n"
      "// source: $filename$\n"
      "\n",
      "filename", descriptor->file()->name());
  if (!java_package.empty()) { 
    printer.Print( 
        "package $package$;\n"
        "\n",
        "package", java_package);
  } 
 
  (generator->*pfn)(&printer); 
 
  if (annotate_code) { 
    std::unique_ptr<io::ZeroCopyOutputStream> info_output(
        context->Open(info_full_path)); 
    annotations.SerializeToZeroCopyStream(info_output.get()); 
    annotation_list->push_back(info_full_path); 
  } 
} 
 
void FileGenerator::GenerateSiblings(
    const TProtoStringType& package_dir, GeneratorContext* context,
    std::vector<TProtoStringType>* file_list,
    std::vector<TProtoStringType>* annotation_list) {
  if (MultipleJavaFiles(file_, immutable_api_)) { 
    for (int i = 0; i < file_->enum_type_count(); i++) { 
      if (HasDescriptorMethods(file_, context_->EnforceLite())) { 
        EnumGenerator generator(file_->enum_type(i), immutable_api_, 
                                context_.get()); 
        GenerateSibling<EnumGenerator>( 
            package_dir, java_package_, file_->enum_type(i), context, file_list, 
            options_.annotate_code, annotation_list, "", &generator, 
            &EnumGenerator::Generate); 
      } else { 
        EnumLiteGenerator generator(file_->enum_type(i), immutable_api_, 
                                    context_.get()); 
        GenerateSibling<EnumLiteGenerator>( 
            package_dir, java_package_, file_->enum_type(i), context, file_list, 
            options_.annotate_code, annotation_list, "", &generator, 
            &EnumLiteGenerator::Generate); 
      } 
    } 
    for (int i = 0; i < file_->message_type_count(); i++) { 
      if (immutable_api_) { 
        GenerateSibling<MessageGenerator>( 
            package_dir, java_package_, file_->message_type(i), context, 
            file_list, options_.annotate_code, annotation_list, "OrBuilder", 
            message_generators_[i].get(), &MessageGenerator::GenerateInterface); 
      } 
      GenerateSibling<MessageGenerator>( 
          package_dir, java_package_, file_->message_type(i), context, 
          file_list, options_.annotate_code, annotation_list, "", 
          message_generators_[i].get(), &MessageGenerator::Generate); 
    } 
    if (HasGenericServices(file_, context_->EnforceLite())) { 
      for (int i = 0; i < file_->service_count(); i++) { 
        std::unique_ptr<ServiceGenerator> generator(
            generator_factory_->NewServiceGenerator(file_->service(i))); 
        GenerateSibling<ServiceGenerator>( 
            package_dir, java_package_, file_->service(i), context, file_list, 
            options_.annotate_code, annotation_list, "", generator.get(), 
            &ServiceGenerator::Generate); 
      } 
    } 
  } 
} 
 
TProtoStringType FileGenerator::GetKotlinClassname() {
  return name_resolver_->GetFileClassName(file_, immutable_api_, true);
}

void FileGenerator::GenerateKotlinSiblings(
    const TProtoStringType& package_dir, GeneratorContext* context,
    std::vector<TProtoStringType>* file_list,
    std::vector<TProtoStringType>* annotation_list) {
  for (int i = 0; i < file_->message_type_count(); i++) {
    const Descriptor* descriptor = file_->message_type(i);
    MessageGenerator* generator = message_generators_[i].get();
    auto open_file = [context](const TProtoStringType& filename) {
      return std::unique_ptr<io::ZeroCopyOutputStream>(context->Open(filename));
    };
    TProtoStringType filename = package_dir + descriptor->name() + "Kt.kt";
    file_list->push_back(filename);
    TProtoStringType info_full_path = filename + ".pb.meta";
    GeneratedCodeInfo annotations;
    io::AnnotationProtoCollector<GeneratedCodeInfo> annotation_collector(
        &annotations);
    auto output = open_file(filename);
    io::Printer printer(
        output.get(), '$',
        options_.annotate_code ? &annotation_collector : nullptr);

    printer.Print(
        "//Generated by the protocol buffer compiler. DO NOT EDIT!\n"
        "// source: $filename$\n"
        "\n",
        "filename", descriptor->file()->name());
    if (!java_package_.empty()) {
      printer.Print(
          "package $package$;\n"
          "\n",
          "package", java_package_);
    }

    generator->GenerateKotlinMembers(&printer);
    generator->GenerateTopLevelKotlinMembers(&printer);

    if (options_.annotate_code) {
      auto info_output = open_file(info_full_path);
      annotations.SerializeToZeroCopyStream(info_output.get());
      annotation_list->push_back(info_full_path);
    }
  }
}

bool FileGenerator::ShouldIncludeDependency(const FileDescriptor* descriptor,
                                            bool immutable_api) {
  return true; 
} 
 
}  // namespace java 
}  // namespace compiler 
}  // namespace protobuf 
}  // namespace google