diff options
Diffstat (limited to 'src/qml/qmltc/supportlibrary/qqmlcpptypehelpers_p.h')
| -rw-r--r-- | src/qml/qmltc/supportlibrary/qqmlcpptypehelpers_p.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/qml/qmltc/supportlibrary/qqmlcpptypehelpers_p.h b/src/qml/qmltc/supportlibrary/qqmlcpptypehelpers_p.h new file mode 100644 index 0000000000..2470d87efe --- /dev/null +++ b/src/qml/qmltc/supportlibrary/qqmlcpptypehelpers_p.h @@ -0,0 +1,28 @@ +// Copyright (C) 2022 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 + +#ifndef QQMLCPPTYPEHELPERS_H +#define QQMLCPPTYPEHELPERS_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists purely as an +// implementation detail. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. +// + +#include <type_traits> + +/*! \internal + Used by Qmltc to decide when value types should be passed by value or reference. + */ +template<typename T> +using passByConstRefOrValue = + std::conditional_t<((sizeof(T) > 3 * sizeof(void *)) || !std::is_trivial_v<T>), const T &, + T>; + +#endif // QQMLCPPTYPEHELPERS_H |