1 files changed, 114 insertions, 0 deletions
diff --git a/sources/pyside6/libpyside/pysideweakref.cpp b/sources/pyside6/libpyside/pysideweakref.cpp
new file mode 100644
index 000000000..cd90634bd
--- /dev/null
+++ b/sources/pyside6/libpyside/pysideweakref.cpp
@@ -0,0 +1,114 @@
+/****************************************************************************
+**
+** 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 "pysideweakref.h"
+
+#include <sbkpython.h>
+#include <shiboken.h>
+
+typedef struct {
+    PyObject_HEAD
+    /* Type-specific fields go here. */
+    PySideWeakRefFunction weakref_func;
+    void *user_data;
+} PySideCallableObject;
+
+static PyObject *CallableObject_call(PyObject *callable_object, PyObject *args, PyObject *kw);
+
+static PyType_Slot PySideCallableObjectType_slots[] = {
+    {Py_tp_call, (void *)CallableObject_call},
+    {Py_tp_dealloc, (void *)Sbk_object_dealloc},
+    {0, 0}
+};
+static PyType_Spec PySideCallableObjectType_spec = {
+    "1:PySide.Callable",
+    sizeof(PySideCallableObject),
+    0,
+    Py_TPFLAGS_DEFAULT,
+    PySideCallableObjectType_slots,
+};
+
+
+static PyTypeObject *PySideCallableObjectTypeF()
+{
+    static PyTypeObject *type =
+        reinterpret_cast<PyTypeObject *>(SbkType_FromSpec(&PySideCallableObjectType_spec));
+    return type;
+}
+
+static PyObject *CallableObject_call(PyObject *callable_object, PyObject *args, PyObject * /* kw */)
+{
+    PySideCallableObject *obj = reinterpret_cast<PySideCallableObject *>(callable_object);
+    obj->weakref_func(obj->user_data);
+
+    Py_XDECREF(PyTuple_GET_ITEM(args, 0)); //kill weak ref object
+    Py_RETURN_NONE;
+}
+
+namespace PySide { namespace WeakRef {
+
+PyObject *create(PyObject *obj, PySideWeakRefFunction func, void *userData)
+{
+    if (obj == Py_None)
+        return 0;
+
+    if (Py_TYPE(PySideCallableObjectTypeF()) == 0)
+    {
+        Py_TYPE(PySideCallableObjectTypeF()) = &PyType_Type;
+        PyType_Ready(PySideCallableObjectTypeF());
+    }
+
+    PyTypeObject *type = PySideCallableObjectTypeF();
+    PySideCallableObject *callable = PyObject_New(PySideCallableObject, type);
+    if (!callable || PyErr_Occurred())
+        return 0;
+
+    PyObject *weak = PyWeakref_NewRef(obj, reinterpret_cast<PyObject *>(callable));
+    if (!weak || PyErr_Occurred())
+        return 0;
+
+    callable->weakref_func = func;
+    callable->user_data = userData;
+    Py_DECREF(callable); // PYSIDE-79: after decref the callable is undefined (theoretically)
+
+    return reinterpret_cast<PyObject *>(weak);
+}
+
+} }  //namespace
+