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- // Copyright (C) 2021 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
- /*********************************************************************
- * INJECT CODE
- ********************************************************************/
- // @snippet qsignalspy-signal
- auto *signalInst = reinterpret_cast<PySideSignalInstance *>(%PYARG_1);
- PyObject *emitterPyObject = PySide::Signal::getObject(signalInst);
- QObject* emitter = %CONVERTTOCPP[QObject *](emitterPyObject);
- QByteArray signature = PySide::Signal::getSignature(signalInst);
- if (!signature.isEmpty())
- signature.prepend('2'); // SIGNAL() macro
- if (emitter == nullptr || signature.isEmpty()) {
- QByteArray error = QByteArrayLiteral("Wrong parameter (")
- + PepType_GetFullyQualifiedNameStr(Py_TYPE(%PYARG_1))
- + QByteArrayLiteral(") passed, QSignalSpy requires a signal.");
- PyErr_SetString(PyExc_ValueError, error.constData());
- return -1;
- }
- // PySide::Signal::getObject() increments the refcount for emitterPyObject,
- // but there is nothing that decrements the count when the spy goes out of
- // scope. It doesn't seem like QSignalSpy should prevent the target object
- // from being garbage collected. So we need to decrement the refcount here.
- Py_DECREF(emitterPyObject);
- %0 = new QSignalSpy(emitter, signature.constData());
- // @snippet qsignalspy-signal
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