diff options
Diffstat (limited to 'sources/shiboken2/libshiboken/pep384_issue33738.cpp')
| -rw-r--r-- | sources/shiboken2/libshiboken/pep384_issue33738.cpp | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/sources/shiboken2/libshiboken/pep384_issue33738.cpp b/sources/shiboken2/libshiboken/pep384_issue33738.cpp new file mode 100644 index 000000000..ee085438e --- /dev/null +++ b/sources/shiboken2/libshiboken/pep384_issue33738.cpp @@ -0,0 +1,121 @@ +/**************************************************************************** +** +** Copyright (C) 2018 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of Qt for Python. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +// There is a bug in Python 3.6 that turned the Index_Check function +// into a macro without taking care of the limited API. +// This leads to the single problem that we don't have +// access to PyLong_Type's nb_index field which is no heap type. +// We cannot easily create this function by inheritance since it is +// not inherited. +// +// Simple solution: Create the structure and write such a function. +// Long term: Submit a patch to python.org . + +// Update: I did the long-term solution for python 3.7 in issue 33738. + +typedef struct { + /* Number implementations must check *both* + arguments for proper type and implement the necessary conversions + in the slot functions themselves. */ + + binaryfunc nb_add; + binaryfunc nb_subtract; + binaryfunc nb_multiply; + binaryfunc nb_remainder; + binaryfunc nb_divmod; + ternaryfunc nb_power; + unaryfunc nb_negative; + unaryfunc nb_positive; + unaryfunc nb_absolute; + inquiry nb_bool; + unaryfunc nb_invert; + binaryfunc nb_lshift; + binaryfunc nb_rshift; + binaryfunc nb_and; + binaryfunc nb_xor; + binaryfunc nb_or; + unaryfunc nb_int; + void *nb_reserved; /* the slot formerly known as nb_long */ + unaryfunc nb_float; + + binaryfunc nb_inplace_add; + binaryfunc nb_inplace_subtract; + binaryfunc nb_inplace_multiply; + binaryfunc nb_inplace_remainder; + ternaryfunc nb_inplace_power; + binaryfunc nb_inplace_lshift; + binaryfunc nb_inplace_rshift; + binaryfunc nb_inplace_and; + binaryfunc nb_inplace_xor; + binaryfunc nb_inplace_or; + + binaryfunc nb_floor_divide; + binaryfunc nb_true_divide; + binaryfunc nb_inplace_floor_divide; + binaryfunc nb_inplace_true_divide; + + unaryfunc nb_index; + + binaryfunc nb_matrix_multiply; + binaryfunc nb_inplace_matrix_multiply; +} PyNumberMethods; + +// temporary structure until we have a generator for the offsets +typedef struct _oldtypeobject { + PyVarObject ob_base; + void *X01; // const char *tp_name; + void *X02; // Py_ssize_t tp_basicsize; + void *X03; // Py_ssize_t tp_itemsize; + void *X04; // destructor tp_dealloc; + void *X05; // printfunc tp_print; + void *X06; // getattrfunc tp_getattr; + void *X07; // setattrfunc tp_setattr; + void *X08; // PyAsyncMethods *tp_as_async; + void *X09; // reprfunc tp_repr; + PyNumberMethods *tp_as_number; + +} PyOldTypeObject; + +int PyIndex_Check(PyObject *obj) +{ + PyOldTypeObject *type = reinterpret_cast<PyOldTypeObject*>(Py_TYPE(obj)); + return type->tp_as_number != NULL && + type->tp_as_number->nb_index != NULL; +} + |