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authorAlexander Smirnov <alex@ydb.tech>2024-07-08 15:54:05 +0000
committerAlexander Smirnov <alex@ydb.tech>2024-07-08 15:54:05 +0000
commitfc7be18c76af2e700641f3598c4856baeef1428e (patch)
tree11dbca45eb321c3a4dd08b12152acc6ef5dd3fa9 /contrib/libs/protoc/src/google/protobuf/compiler/cpp/service.cc
parentec0e7ed6da6fb317741fd8468602949a1362eca5 (diff)
parentc92cb9d3a19331916f0c274d80e67f02a62caa9b (diff)
downloadydb-fc7be18c76af2e700641f3598c4856baeef1428e.tar.gz
Merge branch 'rightlib' into mergelibs-240708-1553
Diffstat (limited to 'contrib/libs/protoc/src/google/protobuf/compiler/cpp/service.cc')
-rw-r--r--contrib/libs/protoc/src/google/protobuf/compiler/cpp/service.cc328
1 files changed, 328 insertions, 0 deletions
diff --git a/contrib/libs/protoc/src/google/protobuf/compiler/cpp/service.cc b/contrib/libs/protoc/src/google/protobuf/compiler/cpp/service.cc
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@@ -0,0 +1,328 @@
+// 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/cpp/service.h>
+
+#include <google/protobuf/io/printer.h>
+#include <google/protobuf/stubs/strutil.h>
+#include <google/protobuf/compiler/cpp/helpers.h>
+
+namespace google {
+namespace protobuf {
+namespace compiler {
+namespace cpp {
+
+namespace {
+
+void InitMethodVariables(const MethodDescriptor* method, const Options& options,
+ Formatter* format) {
+ format->Set("name", method->name());
+ format->Set("input_type", QualifiedClassName(method->input_type(), options));
+ format->Set("output_type",
+ QualifiedClassName(method->output_type(), options));
+}
+
+} // namespace
+
+ServiceGenerator::ServiceGenerator(
+ const ServiceDescriptor* descriptor,
+ const std::map<TProtoStringType, TProtoStringType>& vars, const Options& options)
+ : descriptor_(descriptor), vars_(vars), options_(options) {
+ vars_["classname"] = descriptor_->name();
+ vars_["full_name"] = descriptor_->full_name();
+}
+
+ServiceGenerator::~ServiceGenerator() {}
+
+void ServiceGenerator::GenerateDeclarations(io::Printer* printer) {
+ Formatter format(printer, vars_);
+ // Forward-declare the stub type.
+ format(
+ "class $classname$_Stub;\n"
+ "\n");
+
+ GenerateInterface(printer);
+ GenerateStubDefinition(printer);
+}
+
+void ServiceGenerator::GenerateInterface(io::Printer* printer) {
+ Formatter format(printer, vars_);
+ format(
+ "class $dllexport_decl $$classname$ : public ::$proto_ns$::Service {\n"
+ " protected:\n"
+ " // This class should be treated as an abstract interface.\n"
+ " inline $classname$() {};\n"
+ " public:\n"
+ " virtual ~$classname$();\n");
+ printer->Indent();
+
+ format(
+ "\n"
+ "typedef $classname$_Stub Stub;\n"
+ "\n"
+ "static const ::$proto_ns$::ServiceDescriptor* descriptor();\n"
+ "\n");
+
+ GenerateMethodSignatures(VIRTUAL, printer);
+
+ format(
+ "\n"
+ "// implements Service ----------------------------------------------\n"
+ "\n"
+ "const ::$proto_ns$::ServiceDescriptor* GetDescriptor();\n"
+ "void CallMethod(const ::$proto_ns$::MethodDescriptor* method,\n"
+ " ::$proto_ns$::RpcController* controller,\n"
+ " const ::$proto_ns$::Message* request,\n"
+ " ::$proto_ns$::Message* response,\n"
+ " ::google::protobuf::Closure* done);\n"
+ "const ::$proto_ns$::Message& GetRequestPrototype(\n"
+ " const ::$proto_ns$::MethodDescriptor* method) const;\n"
+ "const ::$proto_ns$::Message& GetResponsePrototype(\n"
+ " const ::$proto_ns$::MethodDescriptor* method) const;\n");
+
+ printer->Outdent();
+ format(
+ "\n"
+ " private:\n"
+ " GOOGLE_DISALLOW_EVIL_CONSTRUCTORS($classname$);\n"
+ "};\n"
+ "\n");
+}
+
+void ServiceGenerator::GenerateStubDefinition(io::Printer* printer) {
+ Formatter format(printer, vars_);
+ format(
+ "class $dllexport_decl $$classname$_Stub : public $classname$ {\n"
+ " public:\n");
+
+ printer->Indent();
+
+ format(
+ "$classname$_Stub(::$proto_ns$::RpcChannel* channel);\n"
+ "$classname$_Stub(::$proto_ns$::RpcChannel* channel,\n"
+ " ::$proto_ns$::Service::ChannelOwnership ownership);\n"
+ "~$classname$_Stub();\n"
+ "\n"
+ "inline ::$proto_ns$::RpcChannel* channel() { return channel_; }\n"
+ "\n"
+ "// implements $classname$ ------------------------------------------\n"
+ "\n");
+
+ GenerateMethodSignatures(NON_VIRTUAL, printer);
+
+ printer->Outdent();
+ format(
+ " private:\n"
+ " ::$proto_ns$::RpcChannel* channel_;\n"
+ " 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);
+ Formatter format(printer, vars_);
+ InitMethodVariables(method, options_, &format);
+ format.Set("virtual", virtual_or_non == VIRTUAL ? "virtual " : "");
+ format(
+ "$virtual$void $name$(::$proto_ns$::RpcController* controller,\n"
+ " const $input_type$* request,\n"
+ " $output_type$* response,\n"
+ " ::google::protobuf::Closure* done);\n");
+ }
+}
+
+// ===================================================================
+
+void ServiceGenerator::GenerateImplementation(io::Printer* printer) {
+ Formatter format(printer, vars_);
+ format(
+ "$classname$::~$classname$() {}\n"
+ "\n"
+ "const ::$proto_ns$::ServiceDescriptor* $classname$::descriptor() {\n"
+ " "
+ "::$proto_ns$::internal::AssignDescriptors(&$desc_table$);\n"
+ " return $file_level_service_descriptors$[$1$];\n"
+ "}\n"
+ "\n"
+ "const ::$proto_ns$::ServiceDescriptor* $classname$::GetDescriptor() {\n"
+ " return descriptor();\n"
+ "}\n"
+ "\n",
+ index_in_metadata_);
+
+ // Generate methods of the interface.
+ GenerateNotImplementedMethods(printer);
+ GenerateCallMethod(printer);
+ GenerateGetPrototype(REQUEST, printer);
+ GenerateGetPrototype(RESPONSE, printer);
+
+ // Generate stub implementation.
+ format(
+ "$classname$_Stub::$classname$_Stub(::$proto_ns$::RpcChannel* channel)\n"
+ " : channel_(channel), owns_channel_(false) {}\n"
+ "$classname$_Stub::$classname$_Stub(\n"
+ " ::$proto_ns$::RpcChannel* channel,\n"
+ " ::$proto_ns$::Service::ChannelOwnership ownership)\n"
+ " : channel_(channel),\n"
+ " owns_channel_(ownership == "
+ "::$proto_ns$::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);
+ Formatter format(printer, vars_);
+ InitMethodVariables(method, options_, &format);
+ format(
+ "void $classname$::$name$(::$proto_ns$::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) {
+ Formatter format(printer, vars_);
+ format(
+ "void $classname$::CallMethod(const ::$proto_ns$::MethodDescriptor* "
+ "method,\n"
+ " ::$proto_ns$::RpcController* controller,\n"
+ " const ::$proto_ns$::Message* request,\n"
+ " ::$proto_ns$::Message* response,\n"
+ " ::google::protobuf::Closure* done) {\n"
+ " GOOGLE_DCHECK_EQ(method->service(), $file_level_service_descriptors$[$1$]);\n"
+ " switch(method->index()) {\n",
+ index_in_metadata_);
+
+ for (int i = 0; i < descriptor_->method_count(); i++) {
+ const MethodDescriptor* method = descriptor_->method(i);
+ Formatter format_method(printer, vars_);
+ InitMethodVariables(method, options_, &format_method);
+
+ // Note: down_cast does not work here because it only works on pointers,
+ // not references.
+ format_method(
+ " case $1$:\n"
+ " $name$(controller,\n"
+ " ::$proto_ns$::internal::DownCast<const $input_type$*>(\n"
+ " request),\n"
+ " ::$proto_ns$::internal::DownCast<$output_type$*>(\n"
+ " response),\n"
+ " done);\n"
+ " break;\n",
+ i);
+ }
+
+ format(
+ " default:\n"
+ " GOOGLE_LOG(FATAL) << \"Bad method index; this should never happen.\";\n"
+ " break;\n"
+ " }\n"
+ "}\n"
+ "\n");
+}
+
+void ServiceGenerator::GenerateGetPrototype(RequestOrResponse which,
+ io::Printer* printer) {
+ Formatter format(printer, vars_);
+ if (which == REQUEST) {
+ format("const ::$proto_ns$::Message& $classname$::GetRequestPrototype(\n");
+ } else {
+ format("const ::$proto_ns$::Message& $classname$::GetResponsePrototype(\n");
+ }
+
+ format(
+ " const ::$proto_ns$::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();
+
+ format(
+ " case $1$:\n"
+ " return $2$::default_instance();\n",
+ i, QualifiedClassName(type, options_));
+ }
+
+ format(
+ " default:\n"
+ " GOOGLE_LOG(FATAL) << \"Bad method index; this should never happen.\";\n"
+ " return *::$proto_ns$::MessageFactory::generated_factory()\n"
+ " ->GetPrototype(method->$1$_type());\n"
+ " }\n"
+ "}\n"
+ "\n",
+ 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);
+ Formatter format(printer, vars_);
+ InitMethodVariables(method, options_, &format);
+ format(
+ "void $classname$_Stub::$name$(::$proto_ns$::RpcController* "
+ "controller,\n"
+ " const $input_type$* request,\n"
+ " $output_type$* response,\n"
+ " ::google::protobuf::Closure* done) {\n"
+ " channel_->CallMethod(descriptor()->method($1$),\n"
+ " controller, request, response, done);\n"
+ "}\n",
+ i);
+ }
+}
+
+} // namespace cpp
+} // namespace compiler
+} // namespace protobuf
+} // namespace google