1 /*
2 *
3 * Copyright 2015 gRPC authors.
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 */
18
19 // Generates Ruby gRPC service interface out of Protobuf IDL.
20
21 #include <memory>
22
23 #include "src/compiler/config.h"
24 #include "src/compiler/ruby_generator.h"
25 #include "src/compiler/ruby_generator_helpers-inl.h"
26
27 class RubyGrpcGenerator : public grpc::protobuf::compiler::CodeGenerator {
28 public:
RubyGrpcGenerator()29 RubyGrpcGenerator() {}
~RubyGrpcGenerator()30 ~RubyGrpcGenerator() {}
31
Generate(const grpc::protobuf::FileDescriptor * file,const grpc::string & parameter,grpc::protobuf::compiler::GeneratorContext * context,grpc::string * error) const32 bool Generate(const grpc::protobuf::FileDescriptor* file,
33 const grpc::string& parameter,
34 grpc::protobuf::compiler::GeneratorContext* context,
35 grpc::string* error) const {
36 grpc::string code = grpc_ruby_generator::GetServices(file);
37 if (code.size() == 0) {
38 return true; // don't generate a file if there are no services
39 }
40
41 // Get output file name.
42 grpc::string file_name;
43 if (!grpc_ruby_generator::ServicesFilename(file, &file_name)) {
44 return false;
45 }
46 std::unique_ptr<grpc::protobuf::io::ZeroCopyOutputStream> output(
47 context->Open(file_name));
48 grpc::protobuf::io::CodedOutputStream coded_out(output.get());
49 coded_out.WriteRaw(code.data(), code.size());
50 return true;
51 }
52 };
53
main(int argc,char * argv[])54 int main(int argc, char* argv[]) {
55 RubyGrpcGenerator generator;
56 return grpc::protobuf::compiler::PluginMain(argc, argv, &generator);
57 }
58