1fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville// Protocol Buffers - Google's data interchange format 2fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville// Copyright 2008 Google Inc. All rights reserved. 3fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville// http://code.google.com/p/protobuf/ 4fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville// 5fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville// Redistribution and use in source and binary forms, with or without 6fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville// modification, are permitted provided that the following conditions are 7fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville// met: 8fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville// 9fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville// * Redistributions of source code must retain the above copyright 10fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville// notice, this list of conditions and the following disclaimer. 11fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville// * Redistributions in binary form must reproduce the above 12fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville// copyright notice, this list of conditions and the following disclaimer 13fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville// in the documentation and/or other materials provided with the 14fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville// distribution. 15fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville// * Neither the name of Google Inc. nor the names of its 16fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville// contributors may be used to endorse or promote products derived from 17fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville// this software without specific prior written permission. 18fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville// 19fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 22fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 23fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 24fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 25fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 29fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville 31fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville// Author: kenton@google.com (Kenton Varda) 32fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville// Based on original Protocol Buffers design by 33fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville// Sanjay Ghemawat, Jeff Dean, and others. 34fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville 35fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville#include <google/protobuf/compiler/cpp/cpp_generator.h> 36fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville 37fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville#include <vector> 38fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville#include <utility> 39fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville 40fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville#include <google/protobuf/compiler/cpp/cpp_file.h> 41fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville#include <google/protobuf/compiler/cpp/cpp_helpers.h> 42fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville#include <google/protobuf/io/printer.h> 43fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville#include <google/protobuf/io/zero_copy_stream.h> 44fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville#include <google/protobuf/descriptor.pb.h> 45fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville 46fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Savillenamespace google { 47fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Savillenamespace protobuf { 48fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Savillenamespace compiler { 49fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Savillenamespace cpp { 50fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville 51fbaaef999ba563838ebd00874ed8a1c01fbf286dWink SavilleCppGenerator::CppGenerator() {} 52fbaaef999ba563838ebd00874ed8a1c01fbf286dWink SavilleCppGenerator::~CppGenerator() {} 53fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville 54fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Savillebool CppGenerator::Generate(const FileDescriptor* file, 55fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville const string& parameter, 56fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville OutputDirectory* output_directory, 57fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville string* error) const { 58fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville vector<pair<string, string> > options; 59fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville ParseGeneratorParameter(parameter, &options); 60fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville 61fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville // ----------------------------------------------------------------- 62fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville // parse generator options 63fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville 64fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville // TODO(kenton): If we ever have more options, we may want to create a 65fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville // class that encapsulates them which we can pass down to all the 66fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville // generator classes. Currently we pass dllexport_decl down to all of 67fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville // them via the constructors, but we don't want to have to add another 68fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville // constructor parameter for every option. 69fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville 70fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville // If the dllexport_decl option is passed to the compiler, we need to write 71fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville // it in front of every symbol that should be exported if this .proto is 72fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville // compiled into a Windows DLL. E.g., if the user invokes the protocol 73fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville // compiler as: 74fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville // protoc --cpp_out=dllexport_decl=FOO_EXPORT:outdir foo.proto 75fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville // then we'll define classes like this: 76fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville // class FOO_EXPORT Foo { 77fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville // ... 78fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville // } 79fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville // FOO_EXPORT is a macro which should expand to __declspec(dllexport) or 80fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville // __declspec(dllimport) depending on what is being compiled. 81fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville string dllexport_decl; 82fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville 83fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville for (int i = 0; i < options.size(); i++) { 84fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville if (options[i].first == "dllexport_decl") { 85fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville dllexport_decl = options[i].second; 86fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville } else { 87fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville *error = "Unknown generator option: " + options[i].first; 88fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville return false; 89fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville } 90fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville } 91fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville 92fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville // ----------------------------------------------------------------- 93fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville 94fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville 95fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville string basename = StripProto(file->name()); 96fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville basename.append(".pb"); 97fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville 98fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville FileGenerator file_generator(file, dllexport_decl); 99fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville 100fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville // Generate header. 101fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville { 102fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville scoped_ptr<io::ZeroCopyOutputStream> output( 103fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville output_directory->Open(basename + ".h")); 104fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville io::Printer printer(output.get(), '$'); 105fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville file_generator.GenerateHeader(&printer); 106fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville } 107fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville 108fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville // Generate cc file. 109fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville { 110fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville scoped_ptr<io::ZeroCopyOutputStream> output( 111fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville output_directory->Open(basename + ".cc")); 112fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville io::Printer printer(output.get(), '$'); 113fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville file_generator.GenerateSource(&printer); 114fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville } 115fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville 116fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville return true; 117fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville} 118fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville 119fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville} // namespace cpp 120fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville} // namespace compiler 121fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville} // namespace protobuf 122fbaaef999ba563838ebd00874ed8a1c01fbf286dWink Saville} // namespace google 123