options.hh

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// This file is part of Awali.
// Copyright 2016-2022 Sylvain Lombardy, Victor Marsault, Jacques Sakarovitch
//
// Awali is a 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, either version 3 of the License, or
// (at your option) any later version.
//
// This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
 
#ifndef AWALI_DYN_OPTIONS_OPTIONS_HH
#define AWALI_DYN_OPTIONS_OPTIONS_HH
 
#include <unordered_map>
#include <typeinfo>
 
#include <awali/common/priority.hh>
#include <awali/common/enums.hh>
#include <awali/common/enum_utils.hh>
#include <awali/common/demangle.hxx>
#include <awali/dyn/options/option.hh>
 
namespace awali {
  namespace dyn {
  
 
    class options_t {
      std::unordered_map<size_t, internal::opt_any_t> map;
 
     public:
 
      options_t(std::initializer_list<internal::option_value_pair_t> list);
      
      options_t() {};
 
      options_t(internal::option_value_pair_t pair)
        : options_t( {pair})
      {}
 
 
      template<typename T>
      options_t(internal::option_t<T> opt)
        : options_t((internal::option_value_pair_t) opt) {}
 
      options_t& operator+=(internal::option_value_pair_t const& other);
 
 
      options_t& operator+=(options_t const& other);
 
 
      template<typename T>
      typename internal::option_t<T>::value_t 
      operator[](internal::option_t<T> option) {
//          auto value = map.find(option.id);
//          if (value == map.end())
//            value = map.emplace(option.id, option.get_default_value()).first;
//          return ((typename internal::option_t<T>::value_t&) value->second);
        auto value = map.find(option.id);
        if (value == map.end())
          return option.get_default_value();
        return ((typename internal::option_t<T>::value_t) value->second);
      }
 
    options_t operator+(internal::option_value_pair_t const& pair) const;
 
 
    options_t operator+(options_t const& other) const;
 
    };
 
 
}} //end of namespaces awali::dyn, and awali
 
 
 
#endif