CLIDRegistry.h

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/*
 * Copyright (C) 2002-2021 CERN for the benefit of the ATLAS collaboration.
 */
 
#ifndef ATHENAKERNEL_CLIDREGISTRY_H
# define ATHENAKERNEL_CLIDREGISTRY_H
 
#include "GaudiKernel/ClassID.h"
 
#include <vector>
#include <string>
#include <tuple>
#include <typeinfo>
 
namespace CLIDdetail {
 
  const unsigned long MINCLID = 256;
  const unsigned long MAXCLID = 2147483647; 
 
}
 
class CLIDRegistryImpl;
 
class CLIDRegistry {
public:
  typedef std::tuple <unsigned long, 
                      std::string, 
                      std::string> tuple_t;
  typedef std::vector< tuple_t > CLIDVector_t;
 
  template <unsigned long CLID>
  static bool addEntry(const std::type_info& ti,
                       const char* typeName,
                       const std::string& typeInfoName);
 
 
  static bool hasNewEntries();
  static CLIDVector_t newEntries();
 
  static const std::type_info* CLIDToTypeinfo (CLID clid);
  static CLID typeinfoToCLID (const std::type_info& ti);
 
 
  static bool addEntry (unsigned long clid,
                        const std::type_info& ti,
                        const char* typeName,
                        const std::string& typeInfoName);
 
private:
  static CLIDRegistryImpl& impl();
};
 
 
template <unsigned long CLID>
bool CLIDRegistry::addEntry(const std::type_info& ti,
                            const char* typeName, 
                            const std::string& typeInfoName) {
  static_assert (CLIDdetail::MINCLID <= CLID && CLID <= CLIDdetail::MAXCLID,
                 "CLID out of CLIDRegistry range");
 
  addEntry (CLID, ti, typeName, typeInfoName);
  return true;
}
 
 
#endif // ATHENAKERNEL_CLIDREGISTRY_H