diff options
Diffstat (limited to 'src/corelib/kernel/qobjectdefs.h')
| -rw-r--r-- | src/corelib/kernel/qobjectdefs.h | 74 |
1 files changed, 50 insertions, 24 deletions
diff --git a/src/corelib/kernel/qobjectdefs.h b/src/corelib/kernel/qobjectdefs.h index b84e87959a..dc2d832fe5 100644 --- a/src/corelib/kernel/qobjectdefs.h +++ b/src/corelib/kernel/qobjectdefs.h @@ -1,7 +1,7 @@ /**************************************************************************** ** -** Copyright (C) 2016 The Qt Company Ltd. -** Copyright (C) 2016 Intel Corporation. +** Copyright (C) 2019 The Qt Company Ltd. +** Copyright (C) 2019 Intel Corporation. ** Contact: https://www.qt.io/licensing/ ** ** This file is part of the QtCore module of the Qt Toolkit. @@ -64,11 +64,7 @@ class QString; // The following macros can be defined by tools that understand Qt // to have the information from the macro. #ifndef QT_ANNOTATE_CLASS -# ifndef Q_COMPILER_VARIADIC_MACROS -# define QT_ANNOTATE_CLASS(type, x) -# else -# define QT_ANNOTATE_CLASS(type, ...) -# endif +# define QT_ANNOTATE_CLASS(type, ...) #endif #ifndef QT_ANNOTATE_CLASS2 # define QT_ANNOTATE_CLASS2(type, a1, a2) @@ -105,11 +101,7 @@ class QString; #endif #define Q_PLUGIN_METADATA(x) QT_ANNOTATE_CLASS(qt_plugin_metadata, x) #define Q_INTERFACES(x) QT_ANNOTATE_CLASS(qt_interfaces, x) -#ifdef Q_COMPILER_VARIADIC_MACROS -# define Q_PROPERTY(...) QT_ANNOTATE_CLASS(qt_property, __VA_ARGS__) -#else -# define Q_PROPERTY(text) QT_ANNOTATE_CLASS(qt_property, text) -#endif +#define Q_PROPERTY(...) QT_ANNOTATE_CLASS(qt_property, __VA_ARGS__) #define Q_PRIVATE_PROPERTY(d, text) QT_ANNOTATE_CLASS2(qt_private_property, d, text) #ifndef Q_REVISION # define Q_REVISION(v) @@ -119,13 +111,13 @@ class QString; #define Q_ENUMS(x) QT_ANNOTATE_CLASS(qt_enums, x) #define Q_FLAGS(x) QT_ANNOTATE_CLASS(qt_enums, x) #define Q_ENUM_IMPL(ENUM) \ - friend Q_DECL_CONSTEXPR const QMetaObject *qt_getEnumMetaObject(ENUM) Q_DECL_NOEXCEPT { return &staticMetaObject; } \ - friend Q_DECL_CONSTEXPR const char *qt_getEnumName(ENUM) Q_DECL_NOEXCEPT { return #ENUM; } + friend Q_DECL_CONSTEXPR const QMetaObject *qt_getEnumMetaObject(ENUM) noexcept { return &staticMetaObject; } \ + friend Q_DECL_CONSTEXPR const char *qt_getEnumName(ENUM) noexcept { return #ENUM; } #define Q_ENUM(x) Q_ENUMS(x) Q_ENUM_IMPL(x) #define Q_FLAG(x) Q_FLAGS(x) Q_ENUM_IMPL(x) #define Q_ENUM_NS_IMPL(ENUM) \ - inline Q_DECL_CONSTEXPR const QMetaObject *qt_getEnumMetaObject(ENUM) Q_DECL_NOEXCEPT { return &staticMetaObject; } \ - inline Q_DECL_CONSTEXPR const char *qt_getEnumName(ENUM) Q_DECL_NOEXCEPT { return #ENUM; } + inline Q_DECL_CONSTEXPR const QMetaObject *qt_getEnumMetaObject(ENUM) noexcept { return &staticMetaObject; } \ + inline Q_DECL_CONSTEXPR const char *qt_getEnumName(ENUM) noexcept { return #ENUM; } #define Q_ENUM_NS(x) Q_ENUMS(x) Q_ENUM_NS_IMPL(x) #define Q_FLAG_NS(x) Q_FLAGS(x) Q_ENUM_NS_IMPL(x) #define Q_SCRIPTABLE QT_ANNOTATE_FUNCTION(qt_scriptable) @@ -209,12 +201,16 @@ private: \ QT_ANNOTATE_CLASS(qt_qgadget, "") \ /*end*/ -/* qmake ignore Q_NAMESPACE */ -#define Q_NAMESPACE \ - extern const QMetaObject staticMetaObject; \ +/* qmake ignore Q_NAMESPACE_EXPORT */ +#define Q_NAMESPACE_EXPORT(...) \ + extern __VA_ARGS__ const QMetaObject staticMetaObject; \ QT_ANNOTATE_CLASS(qt_qnamespace, "") \ /*end*/ +/* qmake ignore Q_NAMESPACE */ +#define Q_NAMESPACE Q_NAMESPACE_EXPORT() \ + /*end*/ + #endif // QT_NO_META_MACROS #else // Q_MOC_RUN @@ -344,7 +340,7 @@ struct Q_CORE_EXPORT QMetaObject const char *className() const; const QMetaObject *superClass() const; - bool inherits(const QMetaObject *metaObject) const Q_DECL_NOEXCEPT; + bool inherits(const QMetaObject *metaObject) const noexcept; QObject *cast(QObject *obj) const; const QObject *cast(const QObject *obj) const; @@ -576,18 +572,48 @@ struct Q_CORE_EXPORT QMetaObject int static_metacall(Call, int, void **) const; static int metacall(QObject *, Call, int, void **); + template <const QMetaObject &MO> static constexpr const QMetaObject *staticMetaObject() + { + return &MO; + } + + struct SuperData { + const QMetaObject *direct; + SuperData() = default; + constexpr SuperData(std::nullptr_t) : direct(nullptr) {} + constexpr SuperData(const QMetaObject *mo) : direct(mo) {} + + constexpr const QMetaObject *operator->() const { return operator const QMetaObject *(); } + +#ifdef QT_NO_DATA_RELOCATION + using Getter = const QMetaObject *(*)(); + Getter indirect = nullptr; + constexpr SuperData(Getter g) : direct(nullptr), indirect(g) {} + constexpr operator const QMetaObject *() const + { return indirect ? indirect() : direct; } + template <const QMetaObject &MO> static constexpr SuperData link() + { return SuperData(QMetaObject::staticMetaObject<MO>); } +#else + constexpr operator const QMetaObject *() const + { return direct; } + template <const QMetaObject &MO> static constexpr SuperData link() + { return SuperData(QMetaObject::staticMetaObject<MO>()); } +#endif + }; + struct { // private data - const QMetaObject *superdata; + SuperData superdata; const QByteArrayData *stringdata; const uint *data; typedef void (*StaticMetacallFunction)(QObject *, QMetaObject::Call, int, void **); StaticMetacallFunction static_metacall; - const QMetaObject * const *relatedMetaObjects; + const SuperData *relatedMetaObjects; void *extradata; //reserved for future use } d; private: static bool invokeMethodImpl(QObject *object, QtPrivate::QSlotObjectBase *slot, Qt::ConnectionType type, void *ret); + friend class QTimer; }; class Q_CORE_EXPORT QMetaObject::Connection { @@ -609,8 +635,8 @@ public: operator RestrictedBool() const { return d_ptr && isConnected_helper() ? &Connection::d_ptr : nullptr; } #endif - Connection(Connection &&o) Q_DECL_NOTHROW : d_ptr(o.d_ptr) { o.d_ptr = nullptr; } - Connection &operator=(Connection &&other) Q_DECL_NOTHROW + Connection(Connection &&o) noexcept : d_ptr(o.d_ptr) { o.d_ptr = nullptr; } + Connection &operator=(Connection &&other) noexcept { qSwap(d_ptr, other.d_ptr); return *this; } }; |