104 lines
3.2 KiB
C++
104 lines
3.2 KiB
C++
#include "google/protobuf/compiler/code_generator.h"
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#include "google/protobuf/io/zero_copy_stream.h"
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#include "google/protobuf/io/printer.h"
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#include "google/protobuf/descriptor.h"
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#include "google/protobuf/descriptor.pb.h"
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#include "schema_proto2_to_proto3_util.h"
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#include "google/protobuf/compiler/plugin.h"
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using google::protobuf::FileDescriptorProto;
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using google::protobuf::FileDescriptor;
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using google::protobuf::DescriptorPool;
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using google::protobuf::io::Printer;
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using google::protobuf::util::SchemaGroupStripper;
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using google::protobuf::util::EnumScrubber;
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namespace google {
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namespace protobuf {
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namespace compiler {
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namespace {
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string StripProto(string filename) {
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if (filename.substr(filename.size() - 11) == ".protodevel") {
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// .protodevel
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return filename.substr(0, filename.size() - 11);
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} else {
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// .proto
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return filename.substr(0, filename.size() - 6);
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}
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}
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DescriptorPool new_pool_;
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} // namespace
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class GoGoProtoGenerator : public CodeGenerator {
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public:
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virtual bool GenerateAll(const std::vector<const FileDescriptor*>& files,
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const string& parameter,
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GeneratorContext* context,
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string* error) const {
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for (int i = 0; i < files.size(); i++) {
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for (auto file : files) {
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bool can_generate =
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(new_pool_.FindFileByName(file->name()) == nullptr);
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for (int j = 0; j < file->dependency_count(); j++) {
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can_generate &= (new_pool_.FindFileByName(
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file->dependency(j)->name()) != nullptr);
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}
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for (int j = 0; j < file->public_dependency_count(); j++) {
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can_generate &= (new_pool_.FindFileByName(
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file->public_dependency(j)->name()) != nullptr);
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}
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for (int j = 0; j < file->weak_dependency_count(); j++) {
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can_generate &= (new_pool_.FindFileByName(
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file->weak_dependency(j)->name()) != nullptr);
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}
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if (can_generate) {
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Generate(file, parameter, context, error);
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break;
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}
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}
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}
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return true;
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}
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virtual bool Generate(const FileDescriptor* file,
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const string& parameter,
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GeneratorContext* context,
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string* error) const {
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FileDescriptorProto new_file;
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file->CopyTo(&new_file);
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SchemaGroupStripper::StripFile(file, &new_file);
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EnumScrubber enum_scrubber;
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enum_scrubber.ScrubFile(&new_file);
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string filename = file->name();
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string basename = StripProto(filename);
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std::vector<std::pair<string,string>> option_pairs;
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ParseGeneratorParameter(parameter, &option_pairs);
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std::unique_ptr<google::protobuf::io::ZeroCopyOutputStream> output(
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context->Open(basename + ".proto"));
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string content = new_pool_.BuildFile(new_file)->DebugString();
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Printer printer(output.get(), '$');
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printer.WriteRaw(content.c_str(), content.size());
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return true;
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}
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};
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} // namespace compiler
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} // namespace protobuf
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} // namespace google
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int main(int argc, char* argv[]) {
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google::protobuf::compiler::GoGoProtoGenerator generator;
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return google::protobuf::compiler::PluginMain(argc, argv, &generator);
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}
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