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opaque_pointer_converter.hpp - Hosted on DriveHQ Cloud IT Platform
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路径: \\game3dprogramming\materials\GameFactory\GameFactoryDemo\references\boost_1_35_0\boost\python\opaque_pointer_converter.hpp
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// Copyright Gottfried Gan�auge 2003..2006. // 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) /* * Generic Conversion of opaque C++-pointers to a Python-Wrapper. */ # ifndef OPAQUE_POINTER_CONVERTER_HPP_ # define OPAQUE_POINTER_CONVERTER_HPP_ # include
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// opaque -- // // registers to- and from- python conversions for a type Pointee. // // Note: // In addition you need to define specializations for type_id // on the type pointed to by Pointer using // BOOST_PYTHON_OPAQUE_SPECIALIZED_TYPE_ID(Pointee) // // For an example see libs/python/test/opaque.cpp // namespace boost { namespace python { template
struct opaque { opaque() { if (type_object.tp_name == 0) { type_object.tp_name = const_cast
(type_id
().name()); if (PyType_Ready (&type_object) < 0) { throw error_already_set(); } this->register_self(); } } static opaque instance; private: static void* extract(PyObject* op) { return PyObject_TypeCheck(op, &type_object) ? static_cast
(implicit_cast
(op))->x : 0 ; } static PyObject* wrap(void const* px) { Pointee* x = *static_cast
(px); if (x == 0) return detail::none(); if ( python_instance *o = PyObject_New(python_instance, &type_object) ) { o->x = x; return static_cast
(implicit_cast
(o)); } else { throw error_already_set(); } } void register_self() { converter::registration const *existing = converter::registry::query (type_id
()); if ((existing == 0) || (existing->m_to_python == 0)) { #ifndef BOOST_PYTHON_NO_PY_SIGNATURES converter::registry::insert(&extract, type_id
(), &get_pytype); converter::registry::insert(&wrap, type_id
(), &get_pytype); #else converter::registry::insert(&extract, type_id
()); converter::registry::insert(&wrap, type_id
()); #endif } } struct python_instance { PyObject_HEAD Pointee* x; }; static PyTypeObject type_object; #ifndef BOOST_PYTHON_NO_PY_SIGNATURES static PyTypeObject const *get_pytype(){return &type_object; } #endif }; template
opaque
opaque
::instance; template
PyTypeObject opaque
::type_object = { PyObject_HEAD_INIT(0) 0, 0, sizeof( BOOST_DEDUCED_TYPENAME opaque
::python_instance ), 0, ::boost::python::detail::dealloc, 0, /* tp_print */ 0, /* tp_getattr */ 0, /* tp_setattr */ 0, /* tp_compare */ 0, /* tp_repr */ 0, /* tp_as_number */ 0, /* tp_as_sequence */ 0, /* tp_as_mapping */ 0, /* tp_hash */ 0, /* tp_call */ 0, /* tp_str */ 0, /* tp_getattro */ 0, /* tp_setattro */ 0, /* tp_as_buffer */ 0, /* tp_flags */ 0, /* tp_doc */ 0, /* tp_traverse */ 0, /* tp_clear */ 0, /* tp_richcompare */ 0, /* tp_weaklistoffset */ 0, /* tp_iter */ 0, /* tp_iternext */ 0, /* tp_methods */ 0, /* tp_members */ 0, /* tp_getset */ 0, /* tp_base */ 0, /* tp_dict */ 0, /* tp_descr_get */ 0, /* tp_descr_set */ 0, /* tp_dictoffset */ 0, /* tp_init */ 0, /* tp_alloc */ 0, /* tp_new */ 0, /* tp_free */ 0, /* tp_is_gc */ 0, /* tp_bases */ 0, /* tp_mro */ 0, /* tp_cache */ 0, /* tp_subclasses */ 0, /* tp_weaklist */ #if PYTHON_API_VERSION >= 1012 0 /* tp_del */ #endif }; }} // namespace boost::python # if BOOST_WORKAROUND(BOOST_MSVC, <= 1300) # define BOOST_PYTHON_OPAQUE_SPECIALIZED_TYPE_ID(Pointee) # else // If you change the below, don't forget to alter the end of type_id.hpp # define BOOST_PYTHON_OPAQUE_SPECIALIZED_TYPE_ID(Pointee) \ namespace boost { namespace python { \ template<> \ inline type_info type_id
(BOOST_PYTHON_EXPLICIT_TT_DEF(Pointee)) \ { \ return type_info (typeid (Pointee *)); \ } \ template<> \ inline type_info type_id
( \ BOOST_PYTHON_EXPLICIT_TT_DEF(const volatile Pointee&)) \ { \ return type_info (typeid (Pointee *)); \ } \ }} # endif # endif // OPAQUE_POINTER_CONVERTER_HPP_
opaque_pointer_converter.hpp
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