SpecRegistry.h

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/*
 *   Copyright (C) 2002-2026 CERN for the benefit of the ATLAS collaboration
 */
#ifndef GLOBALSIM_SPECREGISTRY_H
#define GLOBALSIM_SPECREGISTRY_H
 
/*
  The BitSpecs that can be read from and written to hex text, looked up by name.
 
  TOBTextReader and TOBTextWriter both take a BitSpec property and find their
  entry here, so a TOB type is listed once and becomes usable in both
  directions at the same time. Adding one is a single line in SpecRegistry.cxx.
 
  Keeping the layout behind a std::function means neither algorithm is a class
  template: there is one component per algorithm however many specs exist, and
  the spec is chosen at configuration time rather than at compile time.
*/
 
#include "AthContainers/AuxElement.h"
 
#include <cstddef>
#include <functional>
#include <map>
#include <string>
 
namespace GlobalSim {
 
  struct SpecEntry {
    std::size_t width{0};

    std::function<std::string(const SG::AuxElement&)> pack;

    std::function<void(SG::AuxElement&, const std::string&)> unpack;
  };

  const std::map<std::string, SpecEntry>& specRegistry();

  std::string knownSpecNames();
 
}
 
#endif // GLOBALSIM_SPECREGISTRY_H