text: //  Copyright David Abrahams 2001.
  // 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 REGISTRY_DWA20011127_HPP
  # define REGISTRY_DWA20011127_HPP
  # include <boost/python/type_id.hpp>
  # include <boost/python/converter/to_python_function_type.hpp>
  # include <boost/python/converter/rvalue_from_python_data.hpp>
  # include <boost/python/converter/constructor_function.hpp>
  # include <boost/python/converter/convertible_function.hpp>
  
  namespace boost { namespace python { namespace converter {
  
  struct registration;
  
  // This namespace acts as a sort of singleton
  namespace registry
  {
    // Get the registration corresponding to the type, creating it if necessary
    BOOST_PYTHON_DECL registration const& lookup(type_info);
  
    // Get the registration corresponding to the type, creating it if
    // necessary.  Use this first when the type is a shared_ptr.
    BOOST_PYTHON_DECL registration const& lookup_shared_ptr(type_info);
  
    // Return a pointer to the corresponding registration, if one exists
    BOOST_PYTHON_DECL registration const* query(type_info);
    
    BOOST_PYTHON_DECL void insert(to_python_function_t, type_info, PyTypeObject const* (*to_python_target_type)() = 0);
  
    // Insert an lvalue from_python converter
    BOOST_PYTHON_DECL void insert(convertible_function, type_info, PyTypeObject const* (*expected_pytype)() = 0);
  
    // Insert an rvalue from_python converter
    BOOST_PYTHON_DECL void insert(
        convertible_function
        , constructor_function
        , type_info
        , PyTypeObject const* (*expected_pytype)()  = 0
        );
    
    // Insert an rvalue from_python converter at the tail of the
    // chain. Used for implicit conversions
    BOOST_PYTHON_DECL void push_back(
        convertible_function
        , constructor_function
        , type_info
        , PyTypeObject const* (*expected_pytype)()  = 0
        );
  }
  
  }}} // namespace boost::python::converter
  
  #endif // REGISTRY_DWA20011127_HPP
  