parameters.h

/* 
Beam Delivery Simulation (BDSIM) Copyright (C) Royal Holloway, 
University of London 2001 - 2023.
 
This file is part of BDSIM.
 
BDSIM is free software: you can redistribute it and/or modify 
it under the terms of the GNU General Public License as published 
by the Free Software Foundation version 3 of the License.
 
BDSIM is distributed in the hope that it will be useful, but 
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
 
You should have received a copy of the GNU General Public License
along with BDSIM.  If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef PARAMETERS_H
#define PARAMETERS_H
 
#include <string>
#include <iostream>
#include <iomanip>
#include <map>
#include "element.h"
 
namespace GMAD
{
  extern bool willExit;
 
  class Array;
 
  struct Parameters : public Element {
 
    std::map<std::string,bool> setMap;
 
    void flush();
 
    void inherit_properties(const Element& e);
 
    template <typename T>
    void set_value(std::string property, T value);
 
    Parameters();
  };
 
  template <typename T>
    void Parameters::set_value(std::string property, T value)
    {
#ifdef BDSDEBUG
      std::cout << "element> Setting value " << std::setw(25) << std::left << property << value << std::endl;
#endif
      // member method can throw runtime_error, catch and exit gracefully
      try {
        Published<Element>::set(this,property,value);
      }
      catch(const std::runtime_error&) {
        // not implemented mad parameters will be ignored
        if (property == "harmon" || property == "lag" || property == "volt")
          {return;}
        
        std::cerr << "Error: element> unknown parameter \"" << property << "\" with value " << value  << std::endl;
        // don't exit here, but flag willExit instead
        //exit(1);
        willExit = true;
        return;
      }
      // record property set
      // property name can be different, so look up in alternate names
      std::string publishedName = getPublishedName(property);
      setMap.at(publishedName) = true;
    }
}
 
#endif