MapToPyDictionary.h

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// Mantid Repository : https://github.com/mantidproject/mantid
//
// Copyright © 2015 ISIS Rutherford Appleton Laboratory UKRI,
//   NScD Oak Ridge National Laboratory, European Spallation Source,
//   Institut Laue - Langevin & CSNS, Institute of High Energy Physics, CAS
// SPDX - License - Identifier: GPL - 3.0 +
#pragma once
 
#include <boost/python/dict.hpp>
#include <boost/python/object.hpp>
#include <map>
 
namespace Mantid {
namespace PythonInterface {
namespace Converters {
 
template <typename KeyType, typename ValueType> struct MapToPyDictionary {
 
public:
  using MapType = std::map<KeyType, ValueType>;
 
  MapToPyDictionary(const MapType &map) : m_map(map) {}
  boost::python::dict operator()() {
    using namespace boost::python;
    boost::python::dict dictionary;
    for (const auto &pair : this->m_map) {
      dictionary[object(pair.first)] = object(pair.second);
    }
    return dictionary;
  }
 
private:
  MapType m_map;
};
} // namespace Converters
} // namespace PythonInterface
} // namespace Mantid