servatrice/common/get_pb_extension.cpp

14 lines
466 B
C++

#include "get_pb_extension.h"
#include <google/protobuf/descriptor.h>
#include <google/protobuf/message.h>
int getPbExtension(const ::google::protobuf::Message &message)
{
std::vector<const ::google::protobuf::FieldDescriptor *> fieldList;
message.GetReflection()->ListFields(message, &fieldList);
for (unsigned int j = 0; j < fieldList.size(); ++j)
if (fieldList[j]->is_extension())
return fieldList[j]->number();
return -1;
}