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Extracted the code of Cpp Generator into a header
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| Original file line number | Diff line number | Diff line change |
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| /* | ||
| * | ||
| * Copyright 2019 gRPC authors. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| * | ||
| */ | ||
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| #ifndef GRPC_INTERNAL_COMPILER_CPP_PLUGIN_H | ||
| #define GRPC_INTERNAL_COMPILER_CPP_PLUGIN_H | ||
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| #include <memory> | ||
| #include <sstream> | ||
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| #include "src/compiler/config.h" | ||
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| #include "src/compiler/cpp_generator.h" | ||
| #include "src/compiler/generator_helpers.h" | ||
| #include "src/compiler/protobuf_plugin.h" | ||
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| // Cpp Generator for Protobug IDL | ||
| class CppGrpcGenerator : public grpc::protobuf::compiler::CodeGenerator { | ||
| public: | ||
| CppGrpcGenerator() {} | ||
| virtual ~CppGrpcGenerator() {} | ||
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| virtual bool Generate(const grpc::protobuf::FileDescriptor* file, | ||
| const grpc::string& parameter, | ||
| grpc::protobuf::compiler::GeneratorContext* context, | ||
| grpc::string* error) const { | ||
| if (file->options().cc_generic_services()) { | ||
| *error = | ||
| "cpp grpc proto compiler plugin does not work with generic " | ||
| "services. To generate cpp grpc APIs, please set \"" | ||
| "cc_generic_service = false\"."; | ||
| return false; | ||
| } | ||
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| grpc_cpp_generator::Parameters generator_parameters; | ||
| generator_parameters.use_system_headers = true; | ||
| generator_parameters.generate_mock_code = false; | ||
| generator_parameters.include_import_headers = false; | ||
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| ProtoBufFile pbfile(file); | ||
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| if (!parameter.empty()) { | ||
| std::vector<grpc::string> parameters_list = | ||
| grpc_generator::tokenize(parameter, ","); | ||
| for (auto parameter_string = parameters_list.begin(); | ||
| parameter_string != parameters_list.end(); parameter_string++) { | ||
| std::vector<grpc::string> param = | ||
| grpc_generator::tokenize(*parameter_string, "="); | ||
| if (param[0] == "services_namespace") { | ||
| generator_parameters.services_namespace = param[1]; | ||
| } else if (param[0] == "use_system_headers") { | ||
| if (param[1] == "true") { | ||
| generator_parameters.use_system_headers = true; | ||
| } else if (param[1] == "false") { | ||
| generator_parameters.use_system_headers = false; | ||
| } else { | ||
| *error = grpc::string("Invalid parameter: ") + *parameter_string; | ||
| return false; | ||
| } | ||
| } else if (param[0] == "grpc_search_path") { | ||
| generator_parameters.grpc_search_path = param[1]; | ||
| } else if (param[0] == "generate_mock_code") { | ||
| if (param[1] == "true") { | ||
| generator_parameters.generate_mock_code = true; | ||
| } else if (param[1] != "false") { | ||
| *error = grpc::string("Invalid parameter: ") + *parameter_string; | ||
| return false; | ||
| } | ||
| } else if (param[0] == "gmock_search_path") { | ||
| generator_parameters.gmock_search_path = param[1]; | ||
| } else if (param[0] == "additional_header_includes") { | ||
| generator_parameters.additional_header_includes = | ||
| grpc_generator::tokenize(param[1], ":"); | ||
| } else if (param[0] == "message_header_extension") { | ||
| generator_parameters.message_header_extension = param[1]; | ||
| } else if (param[0] == "include_import_headers") { | ||
| if (param[1] == "true") { | ||
| generator_parameters.include_import_headers = true; | ||
| } else if (param[1] != "false") { | ||
| *error = grpc::string("Invalid parameter: ") + *parameter_string; | ||
| return false; | ||
| } | ||
| } else { | ||
| *error = grpc::string("Unknown parameter: ") + *parameter_string; | ||
| return false; | ||
| } | ||
| } | ||
| } | ||
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| grpc::string file_name = grpc_generator::StripProto(file->name()); | ||
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| grpc::string header_code = | ||
| grpc_cpp_generator::GetHeaderPrologue(&pbfile, generator_parameters) + | ||
| grpc_cpp_generator::GetHeaderIncludes(&pbfile, generator_parameters) + | ||
| grpc_cpp_generator::GetHeaderServices(&pbfile, generator_parameters) + | ||
| grpc_cpp_generator::GetHeaderEpilogue(&pbfile, generator_parameters); | ||
| std::unique_ptr<grpc::protobuf::io::ZeroCopyOutputStream> header_output( | ||
| context->Open(file_name + ".grpc.pb.h")); | ||
| grpc::protobuf::io::CodedOutputStream header_coded_out(header_output.get()); | ||
| header_coded_out.WriteRaw(header_code.data(), header_code.size()); | ||
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| grpc::string source_code = | ||
| grpc_cpp_generator::GetSourcePrologue(&pbfile, generator_parameters) + | ||
| grpc_cpp_generator::GetSourceIncludes(&pbfile, generator_parameters) + | ||
| grpc_cpp_generator::GetSourceServices(&pbfile, generator_parameters) + | ||
| grpc_cpp_generator::GetSourceEpilogue(&pbfile, generator_parameters); | ||
| std::unique_ptr<grpc::protobuf::io::ZeroCopyOutputStream> source_output( | ||
| context->Open(file_name + ".grpc.pb.cc")); | ||
| grpc::protobuf::io::CodedOutputStream source_coded_out(source_output.get()); | ||
| source_coded_out.WriteRaw(source_code.data(), source_code.size()); | ||
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| if (!generator_parameters.generate_mock_code) { | ||
| return true; | ||
| } | ||
| grpc::string mock_code = | ||
| grpc_cpp_generator::GetMockPrologue(&pbfile, generator_parameters) + | ||
| grpc_cpp_generator::GetMockIncludes(&pbfile, generator_parameters) + | ||
| grpc_cpp_generator::GetMockServices(&pbfile, generator_parameters) + | ||
| grpc_cpp_generator::GetMockEpilogue(&pbfile, generator_parameters); | ||
| std::unique_ptr<grpc::protobuf::io::ZeroCopyOutputStream> mock_output( | ||
| context->Open(file_name + "_mock.grpc.pb.h")); | ||
| grpc::protobuf::io::CodedOutputStream mock_coded_out(mock_output.get()); | ||
| mock_coded_out.WriteRaw(mock_code.data(), mock_code.size()); | ||
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| return true; | ||
| } | ||
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| private: | ||
| // Insert the given code into the given file at the given insertion point. | ||
| void Insert(grpc::protobuf::compiler::GeneratorContext* context, | ||
| const grpc::string& filename, const grpc::string& insertion_point, | ||
| const grpc::string& code) const { | ||
| std::unique_ptr<grpc::protobuf::io::ZeroCopyOutputStream> output( | ||
| context->OpenForInsert(filename, insertion_point)); | ||
| grpc::protobuf::io::CodedOutputStream coded_out(output.get()); | ||
| coded_out.WriteRaw(code.data(), code.size()); | ||
| } | ||
| }; | ||
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| #endif // GRPC_INTERNAL_COMPILER_CPP_PLUGIN_H |