The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
https://grpc.io/
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80 lines
3.2 KiB
80 lines
3.2 KiB
/* |
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* |
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* Copyright 2014, Google Inc. |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are |
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* met: |
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* |
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* * Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* * Redistributions in binary form must reproduce the above |
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* copyright notice, this list of conditions and the following disclaimer |
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* in the documentation and/or other materials provided with the |
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* distribution. |
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* * Neither the name of Google Inc. nor the names of its |
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* contributors may be used to endorse or promote products derived from |
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* this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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* |
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*/ |
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// Generates Ruby gRPC service interface out of Protobuf IDL. |
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// |
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// This is a Proto2 compiler plugin. See net/proto2/compiler/proto/plugin.proto |
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// and net/proto2/compiler/public/plugin.h for more information on plugins. |
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#include <memory> |
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#include <string> |
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#include "src/compiler/ruby_generator.h" |
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#include "src/compiler/ruby_generator_helpers-inl.h" |
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#include <google/protobuf/compiler/code_generator.h> |
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#include <google/protobuf/compiler/plugin.h> |
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#include <google/protobuf/io/coded_stream.h> |
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#include <google/protobuf/io/zero_copy_stream.h> |
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#include <google/protobuf/descriptor.h> |
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class RubyGrpcGenerator : public google::protobuf::compiler::CodeGenerator { |
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public: |
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RubyGrpcGenerator() {} |
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~RubyGrpcGenerator() override {} |
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bool Generate(const google::protobuf::FileDescriptor *file, |
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const std::string ¶meter, |
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google::protobuf::compiler::GeneratorContext *context, |
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std::string *error) const override { |
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std::string code = grpc_ruby_generator::GetServices(file); |
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if (code.size() == 0) { |
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return true; // don't generate a file if there are no services |
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} |
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// Get output file name. |
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std::string file_name; |
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if (!grpc_ruby_generator::ServicesFilename(file, &file_name)) { |
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return false; |
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} |
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std::unique_ptr<google::protobuf::io::ZeroCopyOutputStream> output( |
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context->Open(file_name)); |
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google::protobuf::io::CodedOutputStream coded_out(output.get()); |
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coded_out.WriteRaw(code.data(), code.size()); |
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return true; |
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} |
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}; |
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int main(int argc, char *argv[]) { |
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RubyGrpcGenerator generator; |
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return google::protobuf::compiler::PluginMain(argc, argv, &generator); |
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}
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