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99 lines
2.9 KiB
99 lines
2.9 KiB
// Copyright David Abrahams 2002. |
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// Distributed under the Boost Software License, Version 1.0. (See |
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// accompanying file LICENSE_1_0.txt or copy at |
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// http://www.boost.org/LICENSE_1_0.txt) |
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#ifndef REGISTRATIONS_DWA2002223_HPP |
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# define REGISTRATIONS_DWA2002223_HPP |
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# include <boost/python/detail/prefix.hpp> |
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# include <boost/python/type_id.hpp> |
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# include <boost/python/converter/convertible_function.hpp> |
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# include <boost/python/converter/constructor_function.hpp> |
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# include <boost/python/converter/to_python_function_type.hpp> |
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# include <boost/detail/workaround.hpp> |
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namespace boost { namespace python { namespace converter { |
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struct lvalue_from_python_chain |
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{ |
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convertible_function convert; |
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lvalue_from_python_chain* next; |
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}; |
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struct rvalue_from_python_chain |
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{ |
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convertible_function convertible; |
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constructor_function construct; |
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PyTypeObject const* (*expected_pytype)(); |
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rvalue_from_python_chain* next; |
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}; |
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struct BOOST_PYTHON_DECL registration |
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{ |
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public: // member functions |
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explicit registration(type_info target, bool is_shared_ptr = false); |
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~registration(); |
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// Convert the appropriately-typed data to Python |
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PyObject* to_python(void const volatile*) const; |
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// Return the class object, or raise an appropriate Python |
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// exception if no class has been registered. |
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PyTypeObject* get_class_object() const; |
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// Return common denominator of the python class objects, |
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// convertable to target. Inspects the m_class_object and the value_chains. |
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PyTypeObject const* expected_from_python_type() const; |
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PyTypeObject const* to_python_target_type() const; |
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public: // data members. So sue me. |
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const python::type_info target_type; |
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// The chain of eligible from_python converters when an lvalue is required |
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lvalue_from_python_chain* lvalue_chain; |
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// The chain of eligible from_python converters when an rvalue is acceptable |
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rvalue_from_python_chain* rvalue_chain; |
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// The class object associated with this type |
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PyTypeObject* m_class_object; |
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// The unique to_python converter for the associated C++ type. |
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to_python_function_t m_to_python; |
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PyTypeObject const* (*m_to_python_target_type)(); |
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// True iff this type is a shared_ptr. Needed for special rvalue |
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// from_python handling. |
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const bool is_shared_ptr; |
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# if BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3003)) |
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private: |
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void operator=(registration); // This is not defined, and just keeps MWCW happy. |
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# endif |
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}; |
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// |
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// implementations |
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// |
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inline registration::registration(type_info target_type, bool is_shared_ptr) |
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: target_type(target_type) |
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, lvalue_chain(0) |
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, rvalue_chain(0) |
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, m_class_object(0) |
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, m_to_python(0) |
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, m_to_python_target_type(0) |
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, is_shared_ptr(is_shared_ptr) |
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{} |
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inline bool operator<(registration const& lhs, registration const& rhs) |
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{ |
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return lhs.target_type < rhs.target_type; |
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} |
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}}} // namespace boost::python::converter |
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#endif // REGISTRATIONS_DWA2002223_HPP
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