SimG4Core/Notification/interface/TrackInformationExtractor.h - master - githubmirror/cmssw

SimG4Core/Notification/interface/TrackInformationExtractor.h

37 строк1 KB

Vladimir

Updated Exceptions for SIM step

16 янв 2022, 16:00

16 янв 2022, 16:006beae48

#ifndef SimG4Core_TrackInformationExtractor_H
#define SimG4Core_TrackInformationExtractor_H

#include "SimG4Core/Notification/interface/TrackInformation.h"

class G4Track;

/** Provides safe access to the TrackInformation part of a G4Track.
 *  If the G4Track pointer/reference is const, a const reference to
 *  the TrackInformation is returned, else a non-const reference
 *  is  returned.
 *  The TrackInformationExtractor checks for the existance of 
 *  TrackInformation and for the validity of the dynamic_cast;
 *  It will throw an excepton if it is not possible to return 
 *  TrackInformation, but it will do it's best to satisfy the request
 *  (in some cases it may even create the TrackInformation on-the-fly).
 */

class TrackInformationExtractor {
public:
  /** for a const G4Track pointer/reference a const TrackInformation&
     *  is returned.
     */
  const TrackInformation& operator()(const G4Track& gtk) const;
  const TrackInformation& operator()(const G4Track* gtk) const { return operator()(*gtk); }
  /** for a non-const G4Track pointer/reference the TrackInformation&
     *  is also non-const.
     */
  TrackInformation& operator()(G4Track& gtk) const;
  TrackInformation& operator()(G4Track* gtk) const { return operator()(*gtk); }

private:
  void missing(const G4Track& gtk) const;
  void wrongType() const;
};

#endif