shiboken: Get rid of tp_dict in general

It is a long due task to finally remove the direct access
to type object fields.

With Python 3.12, direct access to tp_dict became
problematic. We use that as a reason to start removing
the direct access in favor of function calls.

Task-number: PYSIDE-2230
Change-Id: I6f8a7479ab0afdbef14d4661f66c3588f3a578aa
Pick-to: 6.2 6.5 6.6
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>

1 files changed, 4 insertions, 2 deletions

diff --git a/sources/pyside6/libpyside/dynamicqmetaobject.cpp b/sources/pyside6/libpyside/dynamicqmetaobject.cpp
index 691e66ddc..b7fbc7661 100644
--- a/sources/pyside6/libpyside/dynamicqmetaobject.cpp
+++ b/sources/pyside6/libpyside/dynamicqmetaobject.cpp
@@ -585,7 +585,8 @@ void MetaObjectBuilderPrivate::parsePythonType(PyTypeObject *type)
     // Leave the properties to be registered after signals because they may depend on
     // notify signals.
     for (PyTypeObject *baseType : basesToCheck) {
-        PyObject *attrs = baseType->tp_dict;
+        AutoDecRef tpDict(PepType_GetDict(baseType));
+        PyObject *attrs = tpDict.object();
         PyObject *key = nullptr;
         PyObject *value = nullptr;
         Py_ssize_t pos = 0;
@@ -617,7 +618,8 @@ void MetaObjectBuilderPrivate::parsePythonType(PyTypeObject *type)
     // Signals and slots should be separated, unless the types are modified, later.
     // We check for this using "is_sorted()". Sorting no longer happens at all.
     for (PyTypeObject *baseType : basesToCheck) {
-        PyObject *attrs = baseType->tp_dict;
+        AutoDecRef tpDict(PepType_GetDict(baseType));
+        PyObject *attrs = tpDict.object();
         PyObject *key = nullptr;
         PyObject *value = nullptr;
         Py_ssize_t pos = 0;