diff options
Diffstat (limited to 'sources/pyside6/libpysideqml/pysideqmlmetacallerror.cpp')
-rw-r--r-- | sources/pyside6/libpysideqml/pysideqmlmetacallerror.cpp | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/sources/pyside6/libpysideqml/pysideqmlmetacallerror.cpp b/sources/pyside6/libpysideqml/pysideqmlmetacallerror.cpp new file mode 100644 index 000000000..63cefedb5 --- /dev/null +++ b/sources/pyside6/libpysideqml/pysideqmlmetacallerror.cpp @@ -0,0 +1,67 @@ +// 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 + +#include "pysideqmlmetacallerror_p.h" + +#include <sbkpython.h> +#include <sbkstring.h> +#include <autodecref.h> + +// Remove deprecated MACRO of copysign for MSVC #86286 +// https://github.com/python/cpython/issues/86286 +#ifdef copysign +# undef copysign +#endif + +#include <QtCore/QObject> +#include <QtCore/QString> + +#include <QtQml/QQmlEngine> +#include <QtQml/QQmlListProperty> + +#if __has_include (<private/qv4engine_p.h>) +# define QML_PRIVATE_API_SUPPORT +# include <private/qv4engine_p.h> +# include <private/qv4context_p.h> +# include <private/qqmldata_p.h> +#endif + +namespace PySide::Qml { + +std::optional<int> qmlMetaCallErrorHandler(QObject *object) +{ +#ifdef QML_PRIVATE_API_SUPPORT + // This JS engine grabber based off of Qt 5.5's `qjsEngine` function + QQmlData *data = QQmlData::get(object, false); + if (!data || data->jsWrapper.isNullOrUndefined()) + return {}; + + QV4::ExecutionEngine *engine = data->jsWrapper.engine(); + if (engine->currentStackFrame == nullptr) + return {}; + + PyObject *errType, *errValue, *errTraceback; + PyErr_Fetch(&errType, &errValue, &errTraceback); + // PYSIDE-464: The error is only valid before PyErr_Restore, + // PYSIDE-464: therefore we take local copies. + Shiboken::AutoDecRef objStr(PyObject_Str(errValue)); + const QString errString = QString::fromUtf8(Shiboken::String::toCString(objStr)); + const bool isSyntaxError = errType == PyExc_SyntaxError; + const bool isTypeError = errType == PyExc_TypeError; + PyErr_Restore(errType, errValue, errTraceback); + + PyErr_Print(); // Note: PyErr_Print clears the error. + + if (isSyntaxError) + return engine->throwSyntaxError(errString); + if (isTypeError) + return engine->throwTypeError(errString); + return engine->throwError(errString); +#else + Q_UNUSED(object); + qWarning("libpyside6qml was built without QML private API support, error handling will not work."); + return {}; +#endif // QML_PRIVATE_API_SUPPORT +} + +} // namespace PySide::Qml |