// AddFitNull.h

#ifndef AddFitNull_H
#define AddFitNull_H

// Fitter that throws an assertion if it is ever used.

#include "AddFitter.h"

namespace trf {

class AddFitNull : public AddFitter {

public:  // static methods

  // Return the type name.
  static TypeName get_type_name() { return "AddFitNull"; }

  // Return the creator.
  static ObjCreator get_creator();

  // Return the type.
  static Type get_static_type() { return get_creator(); }

private:  // methods

  // output stream
  void ostr(std::ostream& stream) const;

public:

  // constructor
  AddFitNull();

  // destructor
  virtual ~AddFitNull();

  // Return the type.
  Type get_type() const { return get_static_type(); }

  // Write  object data.
  ObjData write_data() const;

  // add a hit and fit with the new hit
  int add_hit_fit(ETrack& tre, double& chsq, const HitPtr& hit) const;

};

}  // end namespace trf

#endif