// Copyright David Abrahams 2002.

// Distributed under the Boost Software License, Version 1.0. (See

// accompanying file LICENSE_1_0.txt or copy at

// http://www.boost.org/LICENSE_1_0.txt)

#ifndef DICT_20020706_HPP

#define DICT_20020706_HPP

# include <boost/python/detail/prefix.hpp>

#include <boost/python/object.hpp>

#include <boost/python/list.hpp>

#include <boost/python/tuple.hpp>

#include <boost/python/converter/pytype_object_mgr_traits.hpp>

namespace boost { namespace python {

class dict;

namespace detail

{

  struct BOOST_PYTHON_DECL dict_base : object

  {

      // D.clear() -> None.  Remove all items from D.

      void clear();

      // D.copy() -> a shallow copy of D

      dict copy();

      // D.get(k[,d]) -> D[k] if D.has_key(k), else d.  d defaults to None.

      object get(object_cref k) const;

      object get(object_cref k, object_cref d) const;

      // D.has_key(k) -> 1 if D has a key k, else 0

      bool has_key(object_cref k) const;

      // D.items() -> list of D's (key, value) pairs, as 2-tuples

      list items() const;

      // D.iteritems() -> an iterator over the (key, value) items of D

      object iteritems() const;

      // D.iterkeys() -> an iterator over the keys of D

      object iterkeys() const;

      // D.itervalues() -> an iterator over the values of D

      object itervalues() const;

      // D.keys() -> list of D's keys

      list keys() const;

      // D.popitem() -> (k, v), remove and return some (key, value) pair as a

      // 2-tuple; but raise KeyError if D is empty

      tuple popitem();

      // D.setdefault(k[,d]) -> D.get(k,d), also set D[k]=d if not D.has_key(k)

      object setdefault(object_cref k);

      object setdefault(object_cref k, object_cref d);

      // D.update(E) -> None.  Update D from E: for k in E.keys(): D[k] = E[k]

      void update(object_cref E);

      // D.values() -> list of D's values

      list values() const;

   protected:

      // dict() -> new empty dictionary.

      // dict(mapping) -> new dictionary initialized from a mapping object's

      //     (key, value) pairs.

      // dict(seq) -> new dictionary initialized as if via:

      dict_base();   // new dict

      explicit dict_base(object_cref data);

      BOOST_PYTHON_FORWARD_OBJECT_CONSTRUCTORS(dict_base, object)

   private:

      static detail::new_reference call(object const&);

  };

}

class dict : public detail::dict_base

{

    typedef detail::dict_base base;

 public:

    // dict() -> new empty dictionary.

    // dict(mapping) -> new dictionary initialized from a mapping object's

    //     (key, value) pairs.

    // dict(seq) -> new dictionary initialized as if via:

    dict() {}   // new dict

    template <class T>

    explicit dict(T const& data)

        : base(object(data))

    {

    }

    template<class T>

    object get(T const& k) const 

    {

        return base::get(object(k));

    }

    template<class T1, class T2>

    object get(T1 const& k, T2 const& d) const 

    {

        return base::get(object(k),object(d));

    }

    template<class T>

    bool has_key(T const& k) const

    {

        return base::has_key(object(k));

    }

    template<class T>

    object setdefault(T const& k)

    {

        return base::setdefault(object(k));

    }

    template<class T1, class T2>

    object setdefault(T1 const& k, T2 const& d)

    {

        return base::setdefault(object(k),object(d));

    }

    template<class T>

    void update(T const& E)

    {

        base::update(object(E));

    }

 public: // implementation detail -- for internal use only

    BOOST_PYTHON_FORWARD_OBJECT_CONSTRUCTORS(dict, base)

};

//

// Converter Specializations

//

namespace converter

{

  template <>

  struct object_manager_traits<dict>

      : pytype_object_manager_traits<&PyDict_Type,dict>

  {

  };

}

}}   // namespace boost::python

#endif