INavigable.h

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/*
  Copyright (C) 2002-2019 CERN for the benefit of the ATLAS collaboration
*/
 
#ifndef INAVIGABLE_H
#define INAVIGABLE_H
//
// Common base type for classes representing navigable objects
//
 
#include <any>
 
class INavigationToken;
 
class INavigable
{
 public:
 
  virtual ~INavigable() = default;
 
  // enforce fillToken(,) method in derived classes!
  virtual void fillToken( INavigationToken & thisToken ) const = 0;
  virtual void fillToken( INavigationToken & thisToken, 
              const std::any& weight ) const = 0;
 
};
#endif