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/****************************************************************************
**
** Copyright (C) 2016 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.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "basewrapper.h"
#include "basewrapper_p.h"
#include "autodecref.h"
#include "sbkstring.h"
#include "sbkstaticstrings.h"
#include "sbkstaticstrings_p.h"
#include "signature.h"
#include "sbkfeature_base.h"
using namespace Shiboken;
extern "C"
{
////////////////////////////////////////////////////////////////////////////
//
// getFeatureSelectId
//
// This function is needed here already for signature handling.
// Maybe the same function from feature_select.cpp will be replaced.
//
static PyObject *cached_globals = nullptr;
static PyObject *last_select_id = nullptr;
PyObject *getFeatureSelectId()
{
static PyObject *undef = PyLong_FromLong(-1);
static PyObject *feature_dict = GetFeatureDict();
// these things are all borrowed
PyObject *globals = PyEval_GetGlobals();
if (globals == nullptr
|| globals == cached_globals)
return last_select_id;
PyObject *modname = PyDict_GetItem(globals, PyMagicName::name());
if (modname == nullptr)
return last_select_id;
PyObject *select_id = PyDict_GetItem(feature_dict, modname);
if (select_id == nullptr
|| !PyLong_Check(select_id) // int/long cheating
|| select_id == undef)
return last_select_id;
cached_globals = globals;
last_select_id = select_id;
assert(PyLong_AsSsize_t(select_id) >= 0);
return select_id;
}
int currentSelectId(PyTypeObject *type)
{
int sel = SbkObjectType_GetReserved(type);
// This could theoretically be -1 if used too early.
assert(sel >= 0);
return sel;
}
void initFeatureShibokenPart()
{
static PyObject *no_sel = PyLong_FromLong(0);
last_select_id = no_sel;
// Reset the cache. This is called at any "from __feature__ import".
cached_globals = nullptr;
}
static SelectableFeatureHook SelectFeatureSet = nullptr;
SelectableFeatureHook initSelectableFeature(SelectableFeatureHook func)
{
auto ret = SelectFeatureSet;
SelectFeatureSet = func;
return ret;
}
PyObject *mangled_type_getattro(PyTypeObject *type, PyObject *name)
{
/*
* Note: This `type_getattro` version is only the default that comes
* from `PyType_Type.tp_getattro`. This does *not* interfere in any way
* with the complex `tp_getattro` of `QObject` and other instances.
* What we change here is the meta class of `QObject`.
*/
static getattrofunc type_getattro = PyType_Type.tp_getattro;
if (SelectFeatureSet != nullptr)
type->tp_dict = SelectFeatureSet(type);
return type_getattro(reinterpret_cast<PyObject *>(type), name);
}
PyObject *Sbk_TypeGet___dict__(PyTypeObject *type, void *context)
{
/*
* This is the override for getting a dict.
*/
auto dict = type->tp_dict;
if (dict == nullptr)
Py_RETURN_NONE;
if (SelectFeatureSet != nullptr)
dict = SelectFeatureSet(type);
return PyDictProxy_New(dict);
}
// These functions replace the standard PyObject_Generic(Get|Set)Attr functions.
// They provide the default that "object" inherits.
// Everything else is directly handled by cppgenerator that calls `Feature::Select`.
PyObject *SbkObject_GenericGetAttr(PyObject *obj, PyObject *name)
{
auto type = Py_TYPE(obj);
if (SelectFeatureSet != nullptr)
type->tp_dict = SelectFeatureSet(type);
return PyObject_GenericGetAttr(obj, name);
}
int SbkObject_GenericSetAttr(PyObject *obj, PyObject *name, PyObject *value)
{
auto type = Py_TYPE(obj);
if (SelectFeatureSet != nullptr)
type->tp_dict = SelectFeatureSet(type);
return PyObject_GenericSetAttr(obj, name, value);
}
// Caching the select Id.
int SbkObjectType_GetReserved(PyTypeObject *type)
{
auto ptr = PepType_SOTP(reinterpret_cast<SbkObjectType *>(type));
// PYSIDE-1019: During import PepType_SOTP is still zero.
if (ptr == nullptr)
return -1;
return ptr->pyside_reserved_bits;
}
void SbkObjectType_SetReserved(PyTypeObject *type, int value)
{
auto ptr = PepType_SOTP(reinterpret_cast<SbkObjectType *>(type));
// PYSIDE-1019: During import PepType_SOTP is still zero.
if (ptr == nullptr)
return;
ptr->pyside_reserved_bits = value;
}
const char **SbkObjectType_GetPropertyStrings(PyTypeObject *type)
{
auto ptr = PepType_SOTP(reinterpret_cast<SbkObjectType *>(type));
// PYSIDE-1019: During import PepType_SOTP is still zero.
if (ptr == nullptr)
return nullptr;
return ptr->propertyStrings;
}
void SbkObjectType_SetPropertyStrings(PyTypeObject *type, const char **strings)
{
auto ptr = PepType_SOTP(reinterpret_cast<SbkObjectType *>(type));
// PYSIDE-1019: During import PepType_SOTP is still zero.
if (ptr == nullptr)
return;
ptr->propertyStrings = strings;
}
// PYSIDE-1626: Enforcing a context switch without further action.
void SbkObjectType_UpdateFeature(PyTypeObject *type)
{
if (SelectFeatureSet != nullptr)
type->tp_dict = SelectFeatureSet(type);
}
} // extern "C"
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