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1299f4cc5e
- The .desc files will be in the same folder as the generated .cc and .h files. - Paths to generate .desc files are stored in a variable passed in - This is only implemented for C++ - Remove legacy ARGS - Add test that generates and uses C++ protobuf message - Add test that checks that the generated .desc file can be instantiated with DynamicMessageFactory - Add Help rst for new feature
58 lines
1.6 KiB
C++
58 lines
1.6 KiB
C++
#include <fstream>
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#include <google/protobuf/descriptor.h>
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#include <google/protobuf/descriptor.pb.h>
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#include <google/protobuf/dynamic_message.h>
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#include <google/protobuf/text_format.h>
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#include <iostream>
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#include <string>
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int main(int argc, char* argv[])
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{
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std::ifstream fs;
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fs.open(argv[1], std::ifstream::in);
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google::protobuf::FileDescriptorSet file_descriptor_set;
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file_descriptor_set.ParseFromIstream(&fs);
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const google::protobuf::DescriptorPool* compiled_pool =
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google::protobuf::DescriptorPool::generated_pool();
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if (compiled_pool == NULL) {
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std::cerr << "compiled pool is NULL." << std::endl;
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return 1;
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}
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google::protobuf::DescriptorPool pool(compiled_pool);
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google::protobuf::DynamicMessageFactory dynamic_message_factory(&pool);
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for (const google::protobuf::FileDescriptorProto& file_descriptor_proto :
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file_descriptor_set.file()) {
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const google::protobuf::FileDescriptor* file_descriptor =
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pool.BuildFile(file_descriptor_proto);
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if (file_descriptor == NULL) {
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continue;
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}
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const google::protobuf::Descriptor* descriptor =
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pool.FindMessageTypeByName("example.msgs.ExampleDesc");
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if (descriptor == NULL) {
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continue;
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}
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google::protobuf::Message* msg =
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dynamic_message_factory.GetPrototype(descriptor)->New();
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std::string data = "data: 1";
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bool success = google::protobuf::TextFormat::ParseFromString(data, msg);
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if (success) {
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return 0;
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} else {
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std::cerr << "Failed to parse message." << std::endl;
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return 2;
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}
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}
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std::cerr << "No matching message found." << std::endl;
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return 3;
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}
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