JEnumeration.cc

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#include <string>
#include <iostream>
#include <iomanip>

#include "JLang/JTypeList.hh"
#include "JLang/JTypeID.hh"
#include "JLang/JEnumeration.hh"
#include "JROOT/JRootLabel.hh"

#include "JDAQ/JDAQTimesliceIO.hh"

#include "Jeep/JParser.hh"
#include "Jeep/JMessage.hh"


template<> struct JTypeID<int>         : public JLabel<1> {};
template<> struct JTypeID<long int>    : public JLabel<1> {};  // will give compile error if also included in type list
template<> struct JTypeID<std::string> : public JLabel<2> {};
template<> struct JTypeID<double>      : public JLabel<3> {};


struct __A__;        // user class without ID; requires specialisation of class JTypeID.

template<> struct JTypeID<__A__> : public JLabel<4> {};


struct __B__ {       // user class with ID; does not require specialisation of class JTypeID.

  static const int ID = 9;

  static const char* getName()    { return "__B__"; }   // optional name
  static int         getVersion() { return 123; }       // optional version
};


template<>           // template specialisation for class with ROOT dictionary
struct JTypeID<KM3NETDAQ::JDAQTimeslice> : 
  public JROOT::JRootLabel<11, KM3NETDAQ::JDAQTimeslice>
{};


#define PRINT(OUT, ENUMERATION, CLASS) \
  OUT << setw(10) << left << #CLASS << " --> " << ENUMERATION.getLabel(JLANG::JType<CLASS>()).getID() << endl;


/**
 * \file
 *
 * Example program to test JLANG::JEnumeration class.
 * \author mdejong
 */
int main(int argc, char **argv)
{
  using namespace std;

  int         debug;

  try {

    JParser<> zap("Example program to test class enumeration.");

    zap['d'] = make_field(debug)   = 0;

    zap(argc, argv);
  }
  catch(const exception &error) {
    FATAL(error.what() << endl);
  }


  using namespace JPP;


  typedef 
    JTypeList<int, 
    JTypeList<__A__, 
    JTypeList<__B__, 
    JTypeList<KM3NETDAQ::JDAQTimeslice,
    JTypeList<std::string, 
    JTypeList<double> > > > > >    JTypelist_t;
  

  const JEnumeration<JTypelist_t> enumeration;


  enumeration.print(cout);

  PRINT(cout, enumeration, int);
  PRINT(cout, enumeration, __B__);
}