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Files
python/src/wrapper.cpp
Neil Schemenauer cabb466057 Use strong reference APIs.
For the free-threaded build, it is not safe use borrowed references.
Another thread could deallocate the object and cause the reference to
become invalid.  Replace API calls that borrow references with strong
reference APIs.
2025-11-06 19:41:00 -08:00

75 lines
2.1 KiB
C++

// Copyright David Abrahams 2004. 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)
#include <boost/python/wrapper.hpp>
namespace boost { namespace python {
namespace detail
{
override wrapper_base::get_override(
char const* name
, PyTypeObject* class_object
) const
{
if (this->m_self)
{
if (handle<> m = handle<>(
python::allow_null(
::PyObject_GetAttrString(
this->m_self, const_cast<char*>(name))))
)
{
PyObject* class_f = 0;
if (
PyMethod_Check(m.get())
&& PyMethod_GET_SELF(m.get()) == this->m_self
&& class_object->tp_dict != 0
)
{
#if PY_VERSION_HEX >= 0x030D0000
if (::PyDict_GetItemStringRef(
class_object->tp_dict, const_cast<char*>(name), &class_f) < 0) {
throw_error_already_set();
}
#else
class_f = ::PyDict_GetItemString(
class_object->tp_dict, const_cast<char*>(name));
Py_XINCREF(class_f);
#endif
}
bool is_override = (class_f != PyMethod_GET_FUNCTION(m.get()));
Py_XDECREF(class_f);
if (is_override)
return override(m);
}
}
return override(handle<>(detail::none()));
}
}
#if 0
namespace converter
{
PyObject* BOOST_PYTHON_DECL do_polymorphic_ref_to_python(
python::detail::wrapper_base const volatile* x, type_info src
)
{
if (x == 0)
{
::PyErr_Format(
PyExc_TypeError
, "Attempting to returning pointer or reference to instance of %s\n"
"for which no corresponding Python object exists. Wrap this function"
"with a return return value policy"
)
}
}
}
#endif
}} // namespace boost::python::detail