4 files changed, 23 insertions, 8 deletions
diff --git a/sources/pyside6/doc/extras/QtCore.Slot.rst b/sources/pyside6/doc/extras/QtCore.Slot.rst
index 55c3d9fb7..c62104369 100644
--- a/sources/pyside6/doc/extras/QtCore.Slot.rst
+++ b/sources/pyside6/doc/extras/QtCore.Slot.rst
@@ -22,10 +22,11 @@ Detailed Description
     QtCore   pyqtSlot                 Slot
     =======  =======================  =============
 
-    .. class:: PySide6.QtCore.Slot([type1 [, type2...]] [, name="" [, result=None]])
+    .. class:: PySide6.QtCore.Slot([type1 [, type2...]] [, name="" [, result=None, [tag=""]]])
 
             :param name: str
             :param result: type
+            :param tag: str
 
     ``Slot`` takes a list of Python types of the arguments.
 
@@ -34,6 +35,9 @@ Detailed Description
 
     The optional named argument ``result`` specifies the return type.
 
+    The optional named argument ``tag`` specifies a value to be returned
+    by ``QMetaMethod.tag()``.
+
     .. seealso:: :ref:`signals-and-slots`
 
 Q_INVOKABLE
diff --git a/sources/pyside6/libpyside/dynamicqmetaobject.cpp b/sources/pyside6/libpyside/dynamicqmetaobject.cpp
index b7fbc7661..b41dbc275 100644
--- a/sources/pyside6/libpyside/dynamicqmetaobject.cpp
+++ b/sources/pyside6/libpyside/dynamicqmetaobject.cpp
@@ -53,7 +53,8 @@ public:
                       const QByteArray &signature) const;
     int indexOfProperty(const QByteArray &name) const;
     int addSlot(const QByteArray &signature);
-    int addSlot(const QByteArray &signature, const QByteArray &type);
+    int addSlot(const QByteArray &signature, const QByteArray &type,
+                const QByteArray &tag = {});
     int addSignal(const QByteArray &signature);
     void removeMethod(QMetaMethod::MethodType mtype, int index);
     int getPropertyNotifyId(PySideProperty *property) const;
@@ -211,7 +212,8 @@ int MetaObjectBuilder::addSlot(const char *signature)
 }
 
 int MetaObjectBuilderPrivate::addSlot(const QByteArray &signature,
-                                      const QByteArray &type)
+                                      const QByteArray &type,
+                                      const QByteArray &tag)
 {
     if (!checkMethodSignature(signature))
         return -1;
@@ -219,6 +221,8 @@ int MetaObjectBuilderPrivate::addSlot(const QByteArray &signature,
     QMetaMethodBuilder methodBuilder = ensureBuilder()->addSlot(signature);
     if (!type.isEmpty() && type != "void"_ba)
         methodBuilder.setReturnType(type);
+    if (!tag.isEmpty())
+        methodBuilder.setTag(tag);
     return m_baseObject->methodCount() + methodBuilder.index();
 }
 
@@ -638,7 +642,7 @@ void MetaObjectBuilderPrivate::parsePythonType(PyTypeObject *type)
                     const auto *entryList = PySide::Slot::dataListFromCapsule(capsule);
                     for (const auto &e : *entryList) {
                         if (m_baseObject->indexOfSlot(e.signature) == -1)
-                            addSlot(e.signature, e.resultType);
+                            addSlot(e.signature, e.resultType, e.tag);
                     }
                 }
             }
diff --git a/sources/pyside6/libpyside/pysideslot.cpp b/sources/pyside6/libpyside/pysideslot.cpp
index 3954f5efa..676a0bb16 100644
--- a/sources/pyside6/libpyside/pysideslot.cpp
+++ b/sources/pyside6/libpyside/pysideslot.cpp
@@ -18,6 +18,7 @@ struct SlotData
     QByteArray name;
     QByteArray args;
     QByteArray resultType;
+    QByteArray tag; // QMetaMethod::tag()
 };
 
 struct PySideSlot
@@ -63,15 +64,17 @@ static PyTypeObject *PySideSlot_TypeF()
 int slotTpInit(PyObject *self, PyObject *args, PyObject *kw)
 {
     static PyObject *emptyTuple = nullptr;
-    static const char *kwlist[] = {"name", "result", nullptr};
+    static const char *kwlist[] = {"name", "result", "tag", nullptr};
     char *argName = nullptr;
     PyObject *argResult = nullptr;
+    char *tag = nullptr;
 
     if (emptyTuple == nullptr)
         emptyTuple = PyTuple_New(0);
 
-    if (!PyArg_ParseTupleAndKeywords(emptyTuple, kw, "|sO:QtCore.Slot",
-                                     const_cast<char **>(kwlist), &argName, &argResult)) {
+    if (!PyArg_ParseTupleAndKeywords(emptyTuple, kw, "|sOs:QtCore.Slot",
+                                     const_cast<char **>(kwlist),
+                                     &argName, &argResult, &tag)) {
         return -1;
     }
 
@@ -93,6 +96,9 @@ int slotTpInit(PyObject *self, PyObject *args, PyObject *kw)
     if (argName)
         data->slotData->name = argName;
 
+    if (tag)
+        data->slotData->tag = tag;
+
     data->slotData->resultType = argResult
         ? PySide::Signal::getTypeName(argResult) : PySide::Signal::voidType();
 
@@ -132,7 +138,7 @@ PyObject *slotCall(PyObject *self, PyObject *args, PyObject * /* kw */)
             Py_INCREF(capsule);
             PyObject_SetAttr(callback, pySlotName, capsule);
         }
-        entryList->append({signature, returnType});
+        entryList->append({signature, returnType, data->slotData->tag});
 
         //clear data
         delete data->slotData;
diff --git a/sources/pyside6/libpyside/pysideslot_p.h b/sources/pyside6/libpyside/pysideslot_p.h
index 8cebcd575..9852301ee 100644
--- a/sources/pyside6/libpyside/pysideslot_p.h
+++ b/sources/pyside6/libpyside/pysideslot_p.h
@@ -13,6 +13,7 @@ namespace PySide::Slot {
 struct Data {
     QByteArray signature;
     QByteArray resultType;
+    QByteArray tag; // QMetaMethod::tag()
 };
 
 // This list is set as an attribute named PySide::PySideMagicName::slot_list_attr()