1d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville// Protocol Buffers - Google's data interchange format 2d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville// Copyright 2008 Google Inc. All rights reserved. 3d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville// http://code.google.com/p/protobuf/ 4d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville// 5d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville// Redistribution and use in source and binary forms, with or without 6d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville// modification, are permitted provided that the following conditions are 7d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville// met: 8d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville// 9d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville// * Redistributions of source code must retain the above copyright 10d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville// notice, this list of conditions and the following disclaimer. 11d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville// * Redistributions in binary form must reproduce the above 12d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville// copyright notice, this list of conditions and the following disclaimer 13d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville// in the documentation and/or other materials provided with the 14d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville// distribution. 15d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville// * Neither the name of Google Inc. nor the names of its 16d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville// contributors may be used to endorse or promote products derived from 17d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville// this software without specific prior written permission. 18d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville// 19d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 22d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 23d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 24d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 25d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 29d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville 31d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville// Author: kenton@google.com (Kenton Varda) 32d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville 33d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville#include <google/protobuf/compiler/plugin.h> 34d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville 35d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville#include <iostream> 36d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville#include <set> 37d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville 38d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville#ifdef _WIN32 39d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville#include <io.h> 40d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville#include <fcntl.h> 41d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville#ifndef STDIN_FILENO 42d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville#define STDIN_FILENO 0 43d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville#endif 44d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville#ifndef STDOUT_FILENO 45d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville#define STDOUT_FILENO 1 46d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville#endif 47d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville#else 48d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville#include <unistd.h> 49d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville#endif 50d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville 51d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville#include <google/protobuf/stubs/common.h> 52d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville#include <google/protobuf/compiler/plugin.pb.h> 53d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville#include <google/protobuf/compiler/code_generator.h> 54d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville#include <google/protobuf/descriptor.h> 55d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville#include <google/protobuf/io/zero_copy_stream_impl.h> 56d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville 57d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville 58d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Savillenamespace google { 59d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Savillenamespace protobuf { 60d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Savillenamespace compiler { 61d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville 62d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Savilleclass GeneratorResponseOutputDirectory : public OutputDirectory { 63d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville public: 64d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville GeneratorResponseOutputDirectory(CodeGeneratorResponse* response) 65d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville : response_(response) {} 66d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville virtual ~GeneratorResponseOutputDirectory() {} 67d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville 68d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville // implements OutputDirectory -------------------------------------- 69d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville 70d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville virtual io::ZeroCopyOutputStream* Open(const string& filename) { 71d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville CodeGeneratorResponse::File* file = response_->add_file(); 72d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville file->set_name(filename); 73d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville return new io::StringOutputStream(file->mutable_content()); 74d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville } 75d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville 76d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville virtual io::ZeroCopyOutputStream* OpenForInsert( 77d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville const string& filename, const string& insertion_point) { 78d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville CodeGeneratorResponse::File* file = response_->add_file(); 79d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville file->set_name(filename); 80d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville file->set_insertion_point(insertion_point); 81d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville return new io::StringOutputStream(file->mutable_content()); 82d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville } 83d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville 84d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville private: 85d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville CodeGeneratorResponse* response_; 86d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville}; 87d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville 88d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Savilleint PluginMain(int argc, char* argv[], const CodeGenerator* generator) { 89d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville 90d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville if (argc > 1) { 91d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville cerr << argv[0] << ": Unknown option: " << argv[1] << endl; 92d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville return 1; 93d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville } 94d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville 95d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville#ifdef _WIN32 96d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville _setmode(STDIN_FILENO, _O_BINARY); 97d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville _setmode(STDOUT_FILENO, _O_BINARY); 98d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville#endif 99d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville 100d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville CodeGeneratorRequest request; 101d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville if (!request.ParseFromFileDescriptor(STDIN_FILENO)) { 102d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville cerr << argv[0] << ": protoc sent unparseable request to plugin." << endl; 103d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville return 1; 104d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville } 105d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville 106d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville DescriptorPool pool; 107d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville for (int i = 0; i < request.proto_file_size(); i++) { 108d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville const FileDescriptor* file = pool.BuildFile(request.proto_file(i)); 109d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville if (file == NULL) { 110d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville // BuildFile() already wrote an error message. 111d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville return 1; 112d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville } 113d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville } 114d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville 115d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville CodeGeneratorResponse response; 116d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville GeneratorResponseOutputDirectory output_directory(&response); 117d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville 118d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville for (int i = 0; i < request.file_to_generate_size(); i++) { 119d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville const FileDescriptor* file = 120d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville pool.FindFileByName(request.file_to_generate(i)); 121d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville if (file == NULL) { 122d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville cerr << argv[0] << ": protoc asked plugin to generate a file but " 123d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville "did not provide a descriptor for the file: " 124d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville << request.file_to_generate(i) << endl; 125d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville return 1; 126d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville } 127d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville 128d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville string error; 129d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville bool succeeded = generator->Generate( 130d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville file, request.parameter(), &output_directory, &error); 131d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville 132d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville if (!succeeded && error.empty()) { 133d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville error = "Code generator returned false but provided no error " 134d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville "description."; 135d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville } 136d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville if (!error.empty()) { 137d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville response.set_error(file->name() + ": " + error); 138d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville break; 139d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville } 140d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville } 141d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville 142d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville if (!response.SerializeToFileDescriptor(STDOUT_FILENO)) { 143d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville cerr << argv[0] << ": Error writing to stdout." << endl; 144d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville return 1; 145d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville } 146d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville 147d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville return 0; 148d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville} 149d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville 150d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville} // namespace compiler 151d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville} // namespace protobuf 152d0332953cda33fb4f8e24ebff9c49159b69c43d6Wink Saville} // namespace google 153