third_party/protobuf: Update to HEAD (83d681ee2c)

third_party/protobuf/src/google/protobuf/compiler/cpp/cpp_service.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.
@@ skipping 125 matching lines @@
     "  bool owns_channel_;\n"
     "  GOOGLE_DISALLOW_EVIL_CONSTRUCTORS($classname$_Stub);\n"
     "};\n"
     "\n");
 }
 
 void ServiceGenerator::GenerateMethodSignatures(
     VirtualOrNon virtual_or_non, io::Printer* printer) {
   for (int i = 0; i < descriptor_->method_count(); i++) {
     const MethodDescriptor* method = descriptor_->method(i);
-    map<string, string> sub_vars;
+    std::map<string, string> sub_vars;
     sub_vars["name"] = method->name();
     sub_vars["input_type"] = ClassName(method->input_type(), true);
     sub_vars["output_type"] = ClassName(method->output_type(), true);
     sub_vars["virtual"] = virtual_or_non == VIRTUAL ? "virtual " : "";
 
     printer->Print(sub_vars,
       "$virtual$void $name$(::google::protobuf::RpcController* controller,\n"
       "                     const $input_type$* request,\n"
       "                     $output_type$* response,\n"
       "                     ::google::protobuf::Closure* done);\n");
   }
 }
 
 // ===================================================================
 
 void ServiceGenerator::GenerateDescriptorInitializer(
     io::Printer* printer, int index) {
-  map<string, string> vars;
+  std::map<string, string> vars;
   vars["classname"] = descriptor_->name();
   vars["index"] = SimpleItoa(index);
 
   printer->Print(vars,
     "$classname$_descriptor_ = file->service($index$);\n");
 }
 
 // ===================================================================
 
 void ServiceGenerator::GenerateImplementation(io::Printer* printer) {
-  printer->Print(vars_,
-    "$classname$::~$classname$() {}\n"
-    "\n"
-    "const ::google::protobuf::ServiceDescriptor* $classname$::descriptor() {\n"
-    "  protobuf_AssignDescriptorsOnce();\n"
-    "  return $classname$_descriptor_;\n"
-    "}\n"
-    "\n"
-    "const ::google::protobuf::ServiceDescriptor* $classname$::GetDescriptor() {\n"
-    "  protobuf_AssignDescriptorsOnce();\n"
-    "  return $classname$_descriptor_;\n"
-    "}\n"
-    "\n");
+  vars_["index"] = SimpleItoa(index_in_metadata_);
+  printer->Print(
+      vars_,
+      "$classname$::~$classname$() {}\n"
+      "\n"
+      "const ::google::protobuf::ServiceDescriptor* $classname$::descriptor() {\n"
+      "  protobuf_AssignDescriptorsOnce();\n"
+      "  return file_level_service_descriptors[$index$];\n"
+      "}\n"
+      "\n"
+      "const ::google::protobuf::ServiceDescriptor* $classname$::GetDescriptor() {\n"
+      "  return descriptor();\n"
+      "}\n"
+      "\n");
 
   // Generate methods of the interface.
   GenerateNotImplementedMethods(printer);
   GenerateCallMethod(printer);
   GenerateGetPrototype(REQUEST, printer);
   GenerateGetPrototype(RESPONSE, printer);
 
   // Generate stub implementation.
   printer->Print(vars_,
     "$classname$_Stub::$classname$_Stub(::google::protobuf::RpcChannel* channel)\n"
     "  : channel_(channel), owns_channel_(false) {}\n"
     "$classname$_Stub::$classname$_Stub(\n"
     "    ::google::protobuf::RpcChannel* channel,\n"
     "    ::google::protobuf::Service::ChannelOwnership ownership)\n"
     "  : channel_(channel),\n"
     "    owns_channel_(ownership == ::google::protobuf::Service::STUB_OWNS_CHANNEL) {}\n"
     "$classname$_Stub::~$classname$_Stub() {\n"
     "  if (owns_channel_) delete channel_;\n"
     "}\n"
     "\n");
 
   GenerateStubMethods(printer);
 }
 
 void ServiceGenerator::GenerateNotImplementedMethods(io::Printer* printer) {
   for (int i = 0; i < descriptor_->method_count(); i++) {
     const MethodDescriptor* method = descriptor_->method(i);
-    map<string, string> sub_vars;
+    std::map<string, string> sub_vars;
     sub_vars["classname"] = descriptor_->name();
     sub_vars["name"] = method->name();
     sub_vars["index"] = SimpleItoa(i);
     sub_vars["input_type"] = ClassName(method->input_type(), true);
     sub_vars["output_type"] = ClassName(method->output_type(), true);
 
     printer->Print(sub_vars,
       "void $classname$::$name$(::google::protobuf::RpcController* controller,\n"
       "                         const $input_type$*,\n"
       "                         $output_type$*,\n"
       "                         ::google::protobuf::Closure* done) {\n"
       "  controller->SetFailed(\"Method $name$() not implemented.\");\n"
       "  done->Run();\n"
       "}\n"
       "\n");
   }
 }
 
 void ServiceGenerator::GenerateCallMethod(io::Printer* printer) {
-  printer->Print(vars_,
-    "void $classname$::CallMethod(const ::google::protobuf::MethodDescriptor* method,\n"
-    "                             ::google::protobuf::RpcController* controller,\n"
-    "                             const ::google::protobuf::Message* request,\n"
-    "                             ::google::protobuf::Message* response,\n"
-    "                             ::google::protobuf::Closure* done) {\n"
-    "  GOOGLE_DCHECK_EQ(method->service(), $classname$_descriptor_);\n"
-    "  switch(method->index()) {\n");
+  printer->Print(
+      vars_,
+      "void $classname$::CallMethod(const ::google::protobuf::MethodDescriptor* method,\n"
+      "                             ::google::protobuf::RpcController* controller,\n"
+      "                             const ::google::protobuf::Message* request,\n"
+      "                             ::google::protobuf::Message* response,\n"
+      "                             ::google::protobuf::Closure* done) {\n"
+      "  GOOGLE_DCHECK_EQ(method->service(), "
+      "file_level_service_descriptors[$index$]);\n"
+      "  switch(method->index()) {\n");
 
   for (int i = 0; i < descriptor_->method_count(); i++) {
     const MethodDescriptor* method = descriptor_->method(i);
-    map<string, string> sub_vars;
+    std::map<string, string> sub_vars;
     sub_vars["name"] = method->name();
     sub_vars["index"] = SimpleItoa(i);
     sub_vars["input_type"] = ClassName(method->input_type(), true);
     sub_vars["output_type"] = ClassName(method->output_type(), true);
 
     // Note:  down_cast does not work here because it only works on pointers,
     //   not references.
     printer->Print(sub_vars,
       "    case $index$:\n"
       "      $name$(controller,\n"
@@ skipping 25 matching lines @@
   printer->Print(vars_,
     "    const ::google::protobuf::MethodDescriptor* method) const {\n"
     "  GOOGLE_DCHECK_EQ(method->service(), descriptor());\n"
     "  switch(method->index()) {\n");
 
   for (int i = 0; i < descriptor_->method_count(); i++) {
     const MethodDescriptor* method = descriptor_->method(i);
     const Descriptor* type =
       (which == REQUEST) ? method->input_type() : method->output_type();
 
-    map<string, string> sub_vars;
+    std::map<string, string> sub_vars;
     sub_vars["index"] = SimpleItoa(i);
     sub_vars["type"] = ClassName(type, true);
 
     printer->Print(sub_vars,
       "    case $index$:\n"
       "      return $type$::default_instance();\n");
   }
 
-  printer->Print(vars_,
+  printer->Print(
     "    default:\n"
     "      GOOGLE_LOG(FATAL) << \"Bad method index; this should never happen.\";\n"
-    "      return *static_cast< ::google::protobuf::Message*>(NULL);\n"
+    "      return *::google::protobuf::MessageFactory::generated_factory()\n"
+    "          ->GetPrototype(method->$input_or_output$_type());\n"
     "  }\n"
     "}\n"
-    "\n");
+    "\n",
+    "input_or_output", which == REQUEST ? "input" : "output");
 }
 
 void ServiceGenerator::GenerateStubMethods(io::Printer* printer) {
   for (int i = 0; i < descriptor_->method_count(); i++) {
     const MethodDescriptor* method = descriptor_->method(i);
-    map<string, string> sub_vars;
+    std::map<string, string> sub_vars;
     sub_vars["classname"] = descriptor_->name();
     sub_vars["name"] = method->name();
     sub_vars["index"] = SimpleItoa(i);
     sub_vars["input_type"] = ClassName(method->input_type(), true);
     sub_vars["output_type"] = ClassName(method->output_type(), true);
 
     printer->Print(sub_vars,
       "void $classname$_Stub::$name$(::google::protobuf::RpcController* controller,\n"
       "                              const $input_type$* request,\n"
       "                              $output_type$* response,\n"
       "                              ::google::protobuf::Closure* done) {\n"
       "  channel_->CallMethod(descriptor()->method($index$),\n"
       "                       controller, request, response, done);\n"
       "}\n");
   }
 }
 
 }  // namespace cpp
 }  // namespace compiler
 }  // namespace protobuf
 }  // namespace google