77 lines
2.5 KiB
Plaintext
77 lines
2.5 KiB
Plaintext
// 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 DECORATED_TYPE_ID_DWA2002517_HPP
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# define DECORATED_TYPE_ID_DWA2002517_HPP
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# include <boost/python/type_id.hpp>
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# include <boost/python/detail/indirect_traits.hpp>
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# include <boost/type_traits/cv_traits.hpp>
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namespace boost { namespace python { namespace detail {
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struct decorated_type_info : totally_ordered<decorated_type_info>
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{
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enum decoration { const_ = 0x1, volatile_ = 0x2, reference = 0x4 };
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decorated_type_info(type_info, decoration = decoration());
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inline bool operator<(decorated_type_info const& rhs) const;
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inline bool operator==(decorated_type_info const& rhs) const;
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friend BOOST_PYTHON_DECL std::ostream& operator<<(std::ostream&, decorated_type_info const&);
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operator type_info const&() const;
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private: // type
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typedef type_info base_id_t;
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private: // data members
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decoration m_decoration;
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base_id_t m_base_type;
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};
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template <class T>
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inline decorated_type_info decorated_type_id(boost::type<T>* = 0)
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{
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return decorated_type_info(
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type_id<T>()
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, decorated_type_info::decoration(
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(is_const<T>::value || indirect_traits::is_reference_to_const<T>::value
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? decorated_type_info::const_ : 0)
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| (is_volatile<T>::value || indirect_traits::is_reference_to_volatile<T>::value
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? decorated_type_info::volatile_ : 0)
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| (is_reference<T>::value ? decorated_type_info::reference : 0)
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)
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);
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}
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inline decorated_type_info::decorated_type_info(type_info base_t, decoration decoration)
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: m_decoration(decoration)
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, m_base_type(base_t)
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{
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}
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inline bool decorated_type_info::operator<(decorated_type_info const& rhs) const
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{
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return m_decoration < rhs.m_decoration
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|| (m_decoration == rhs.m_decoration
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&& m_base_type < rhs.m_base_type);
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}
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inline bool decorated_type_info::operator==(decorated_type_info const& rhs) const
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{
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return m_decoration == rhs.m_decoration && m_base_type == rhs.m_base_type;
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}
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inline decorated_type_info::operator type_info const&() const
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{
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return m_base_type;
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}
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BOOST_PYTHON_DECL std::ostream& operator<<(std::ostream&, decorated_type_info const&);
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}}} // namespace boost::python::detail
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#endif // DECORATED_TYPE_ID_DWA2002517_HPP
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