| /* |
| * |
| * Copyright 2015, Google Inc. |
| * All rights reserved. |
| * |
| * 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. |
| * |
| */ |
| |
| // Generates Objective C gRPC service interface out of Protobuf IDL. |
| |
| #include <memory> |
| |
| #include "src/compiler/config.h" |
| #include "src/compiler/objective_c_generator.h" |
| #include "src/compiler/objective_c_generator_helpers.h" |
| |
| #include <google/protobuf/compiler/objectivec/objectivec_helpers.h> |
| |
| class ObjectiveCGrpcGenerator : public grpc::protobuf::compiler::CodeGenerator { |
| public: |
| ObjectiveCGrpcGenerator() {} |
| virtual ~ObjectiveCGrpcGenerator() {} |
| |
| virtual bool Generate(const grpc::protobuf::FileDescriptor *file, |
| const ::grpc::string ¶meter, |
| grpc::protobuf::compiler::GeneratorContext *context, |
| ::grpc::string *error) const { |
| |
| if (file->service_count() == 0) { |
| // No services. Do nothing. |
| return true; |
| } |
| |
| ::grpc::string file_name = grpc_generator::FileNameInUpperCamel(file); |
| ::grpc::string prefix = file->options().objc_class_prefix(); |
| |
| { |
| // Generate .pbrpc.h |
| |
| ::grpc::string imports = ::grpc::string("#import \"") + file_name + |
| ".pbobjc.h\"\n\n" |
| "#import <ProtoRPC/ProtoService.h>\n" |
| "#import <RxLibrary/GRXWriteable.h>\n" |
| "#import <RxLibrary/GRXWriter.h>\n"; |
| |
| // TODO(jcanizales): Instead forward-declare the input and output types |
| // and import the files in the .pbrpc.m |
| ::grpc::string proto_imports; |
| for (int i = 0; i < file->dependency_count(); i++) { |
| ::grpc::string header = grpc_objective_c_generator::MessageHeaderName( |
| file->dependency(i)); |
| const grpc::protobuf::FileDescriptor *dependency = file->dependency(i); |
| if (::google::protobuf::compiler::objectivec::IsProtobufLibraryBundledProtoFile(dependency)) { |
| ::grpc::string base_name = header; |
| grpc_generator::StripPrefix(&base_name, "google/protobuf/"); |
| proto_imports += |
| ::grpc::string("#if GPB_USE_PROTOBUF_FRAMEWORK_IMPORTS\n") + |
| ::grpc::string(" #import <") + |
| ::google::protobuf::compiler::objectivec::ProtobufLibraryFrameworkName + |
| ("/") + base_name + ">\n" + |
| ::grpc::string("#else\n") + |
| ::grpc::string(" #import \"") + header + "\"\n" + |
| ::grpc::string("#endif\n"); |
| } else { |
| proto_imports += ::grpc::string("#import \"") + header + "\"\n"; |
| } |
| } |
| |
| ::grpc::string declarations; |
| for (int i = 0; i < file->service_count(); i++) { |
| const grpc::protobuf::ServiceDescriptor *service = file->service(i); |
| declarations += grpc_objective_c_generator::GetHeader(service); |
| } |
| |
| static const ::grpc::string kNonNullBegin = "\nNS_ASSUME_NONNULL_BEGIN\n\n"; |
| static const ::grpc::string kNonNullEnd = "\nNS_ASSUME_NONNULL_END\n"; |
| |
| Write(context, file_name + ".pbrpc.h", |
| imports + '\n' + proto_imports + '\n' + kNonNullBegin + |
| declarations + kNonNullEnd); |
| } |
| |
| { |
| // Generate .pbrpc.m |
| |
| ::grpc::string imports = ::grpc::string("#import \"") + file_name + |
| ".pbrpc.h\"\n\n" |
| "#import <ProtoRPC/ProtoRPC.h>\n" |
| "#import <RxLibrary/GRXWriter+Immediate.h>\n"; |
| |
| ::grpc::string definitions; |
| for (int i = 0; i < file->service_count(); i++) { |
| const grpc::protobuf::ServiceDescriptor *service = file->service(i); |
| definitions += grpc_objective_c_generator::GetSource(service); |
| } |
| |
| Write(context, file_name + ".pbrpc.m", imports + '\n' + definitions); |
| } |
| |
| return true; |
| } |
| |
| private: |
| // Write the given code into the given file. |
| void Write(grpc::protobuf::compiler::GeneratorContext *context, |
| const ::grpc::string &filename, const ::grpc::string &code) const { |
| std::unique_ptr<grpc::protobuf::io::ZeroCopyOutputStream> output( |
| context->Open(filename)); |
| grpc::protobuf::io::CodedOutputStream coded_out(output.get()); |
| coded_out.WriteRaw(code.data(), code.size()); |
| } |
| }; |
| |
| int main(int argc, char *argv[]) { |
| ObjectiveCGrpcGenerator generator; |
| return grpc::protobuf::compiler::PluginMain(argc, argv, &generator); |
| } |