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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "pysidesignal_p.h"
#include "pysideslot_p.h"
#include "pysidestaticstrings.h"
#include <shiboken.h>
#include <QtCore/QMetaObject>
#include <QtCore/QString>
#include <signature.h>
using namespace Shiboken;
struct SlotData
{
QByteArray name;
QByteArray args;
QByteArray resultType;
};
typedef struct
{
PyObject_HEAD
SlotData *slotData;
} PySideSlot;
extern "C"
{
static int slotTpInit(PyObject *, PyObject *, PyObject *);
static PyObject *slotCall(PyObject *, PyObject *, PyObject *);
// Class Definition -----------------------------------------------
static PyType_Slot PySideSlotType_slots[] = {
{Py_tp_call, reinterpret_cast<void *>(slotCall)},
{Py_tp_init, reinterpret_cast<void *>(slotTpInit)},
{Py_tp_new, reinterpret_cast<void *>(PyType_GenericNew)},
{Py_tp_dealloc, reinterpret_cast<void *>(Sbk_object_dealloc)},
{0, nullptr}
};
static PyType_Spec PySideSlotType_spec = {
"2:PySide6.QtCore.Slot",
sizeof(PySideSlot),
0,
Py_TPFLAGS_DEFAULT,
PySideSlotType_slots,
};
static PyTypeObject *PySideSlot_TypeF()
{
static auto *type = SbkType_FromSpec(&PySideSlotType_spec);
return type;
}
int slotTpInit(PyObject *self, PyObject *args, PyObject *kw)
{
static PyObject *emptyTuple = nullptr;
static const char *kwlist[] = {"name", "result", nullptr};
char *argName = nullptr;
PyObject *argResult = nullptr;
if (emptyTuple == nullptr)
emptyTuple = PyTuple_New(0);
if (!PyArg_ParseTupleAndKeywords(emptyTuple, kw, "|sO:QtCore.Slot",
const_cast<char **>(kwlist), &argName, &argResult)) {
return -1;
}
PySideSlot *data = reinterpret_cast<PySideSlot *>(self);
if (!data->slotData)
data->slotData = new SlotData;
for(Py_ssize_t i = 0, i_max = PyTuple_Size(args); i < i_max; i++) {
PyObject *argType = PyTuple_GET_ITEM(args, i);
const auto typeName = PySide::Signal::getTypeName(argType);
if (typeName.isEmpty()) {
PyErr_Format(PyExc_TypeError, "Unknown signal argument type: %s", Py_TYPE(argType)->tp_name);
return -1;
}
if (!data->slotData->args.isEmpty())
data->slotData->args += ',';
data->slotData->args += typeName;
}
if (argName)
data->slotData->name = argName;
data->slotData->resultType = argResult
? PySide::Signal::getTypeName(argResult) : PySide::Signal::voidType();
return 0;
}
PyObject *slotCall(PyObject *self, PyObject *args, PyObject * /* kw */)
{
PyObject *callback = nullptr;
if (!PyArg_UnpackTuple(args, "Slot.__call__", 1, 1, &callback))
return nullptr;
Py_INCREF(callback);
if (PyCallable_Check(callback)) {
PySideSlot *data = reinterpret_cast<PySideSlot *>(self);
if (!data->slotData)
data->slotData = new SlotData;
if (data->slotData->name.isEmpty()) {
// PYSIDE-198: Use PyObject_GetAttr instead of PepFunction_GetName to support Nuitka.
AutoDecRef funcName(PyObject_GetAttr(callback, PyMagicName::name()));
data->slotData->name = funcName.isNull() ? "<no name>" : String::toCString(funcName);
}
const QByteArray returnType = QMetaObject::normalizedType(data->slotData->resultType);
const QByteArray signature =
returnType + ' ' + data->slotData->name + '(' + data->slotData->args + ')';
PyObject *pySignature = String::fromCString(signature);
PyObject *signatureList = nullptr;
PyObject *pySlotName = PySide::PySideMagicName::slot_list_attr();
if (PyObject_HasAttr(callback, pySlotName)) {
signatureList = PyObject_GetAttr(callback, pySlotName);
} else {
signatureList = PyList_New(0);
PyObject_SetAttr(callback, pySlotName, signatureList);
Py_DECREF(signatureList);
}
PyList_Append(signatureList, pySignature);
Py_DECREF(pySignature);
//clear data
delete data->slotData;
data->slotData = nullptr;
}
return callback;
}
} // extern "C"
namespace PySide::Slot {
static const char *Slot_SignatureStrings[] = {
"PySide6.QtCore.Slot(self,*types:type,name:str=nullptr,result:type=nullptr)",
"PySide6.QtCore.Slot.__call__(self,function:typing.Callable)->typing.Any",
nullptr}; // Sentinel
void init(PyObject *module)
{
if (InitSignatureStrings(PySideSlot_TypeF(), Slot_SignatureStrings) < 0)
return;
Py_INCREF(PySideSlot_TypeF());
PyModule_AddObject(module, "Slot", reinterpret_cast<PyObject *>(PySideSlot_TypeF()));
}
} // namespace PySide::Slot
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