main.cpp

#include <cstdio>

#include "MetaPlug/generated/MetaPlug.hpp"

#include "main.hpp"

int main(int argc, char** argv) {
  auto metaclass = CppMetaGen::GetMetaClassByName("TestClass");
  auto obj = new TestClass();
  obj->someField = 23;

  printf("Class Name:\n  - %s\n", metaclass->GetName());

  printf("\nFields:\n");
  auto fields = metaclass->GetFields();
  for (auto field : fields) {
    auto f = field->GetVariant();

    printf("  - %s : %d\n", field->GetName(), *f->GetValue<int>(obj));
  }

  printf("\nMeta Tags:\n");

  auto tags = metaclass->GetMetaTags();
  for (auto tag : tags) {
    printf("  - %s\n", tag->GetName());

    {
      auto annotation = tag->GetVariant()->GetValue<TestAnnotation>();
      if (annotation) printf("    - %d\n", annotation->number);
    }
  }

  return 0;
}

main.hpp

#include "Meta.hpp"

DefineMetaTag()
struct TestAnnotation {
  TestAnnotation(int number) :
    number(number) {};

  int number;
};

Meta(TestAnnotation(13))
class TestClass {
public:
  TestClass() {};
  ~TestClass() {};

  int someField;
};

output

Class Name:
  - TestClass

Fields:
  - someField : 23

Meta Tags:
  - TestAnnotation
    - 13