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#ifndef _INC_FUNCTION_HPP__
#define _INC_FUNCTION_HPP__

#include <NewKit/Defines.hpp>

namespace NewOS {
template <typename T, typename... Args>
class Function final {
 public:
  Function() = default;

 public:
  explicit Function(T (*Fn)(Args... args)) : m_Fn(Fn) {}

  ~Function() = default;

  Function &operator=(const Function &) = default;
  Function(const Function &) = default;

  template <typename... XArgs>
  T operator()(Args... args) {
    return m_Fn(args...);
  }

  template <typename... XArgs>
  T Call(Args... args) {
    return m_Fn(args...);
  }

  operator bool() { return m_Fn; }

  bool operator!() { return !m_Fn; }

 private:
  T (*m_Fn)(Args... args);
};
}  // namespace NewOS

#endif  // !_INC_FUNCTION_HPP__