Files
RMHook-Win/paho-mqtt3as-proxy/Qt/include/QtCore/qobjectdefs.h
2026-05-07 16:41:01 +02:00

629 lines
24 KiB
C++

// Copyright (C) 2022 The Qt Company Ltd.
// Copyright (C) 2019 Intel Corporation.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QOBJECTDEFS_H
#define QOBJECTDEFS_H
#if defined(__OBJC__) && !defined(__cplusplus)
# warning "File built in Objective-C mode (.m), but using Qt requires Objective-C++ (.mm)"
#endif
#include <QtCore/qnamespace.h>
#include <QtCore/qobjectdefs_impl.h>
#include <QtCore/qtmetamacros.h>
QT_BEGIN_NAMESPACE
class QByteArray;
struct QArrayData;
class QString;
#ifndef QT_NO_META_MACROS
// macro for onaming members
#ifdef METHOD
#undef METHOD
#endif
#ifdef SLOT
#undef SLOT
#endif
#ifdef SIGNAL
#undef SIGNAL
#endif
#endif // QT_NO_META_MACROS
Q_CORE_EXPORT const char *qFlagLocation(const char *method);
#ifndef QT_NO_META_MACROS
# define QMETHOD_CODE 0 // member type codes
# define QSLOT_CODE 1
# define QSIGNAL_CODE 2
# define QT_PREFIX_CODE(code, a) QT_STRINGIFY(code) #a
# define QT_STRINGIFY_METHOD(a) QT_PREFIX_CODE(QMETHOD_CODE, a)
# define QT_STRINGIFY_SLOT(a) QT_PREFIX_CODE(QSLOT_CODE, a)
# define QT_STRINGIFY_SIGNAL(a) QT_PREFIX_CODE(QSIGNAL_CODE, a)
# ifndef QT_NO_DEBUG
# define QLOCATION "\0" __FILE__ ":" QT_STRINGIFY(__LINE__)
# ifndef QT_NO_KEYWORDS
# define METHOD(a) qFlagLocation(QT_STRINGIFY_METHOD(a) QLOCATION)
# endif
# define SLOT(a) qFlagLocation(QT_STRINGIFY_SLOT(a) QLOCATION)
# define SIGNAL(a) qFlagLocation(QT_STRINGIFY_SIGNAL(a) QLOCATION)
# else
# ifndef QT_NO_KEYWORDS
# define METHOD(a) QT_STRINGIFY_METHOD(a)
# endif
# define SLOT(a) QT_STRINGIFY_SLOT(a)
# define SIGNAL(a) QT_STRINGIFY_SIGNAL(a)
# endif
#endif // QT_NO_META_MACROS
#define Q_ARG(Type, data) QtPrivate::Invoke::argument<Type>(QT_STRINGIFY(Type), data)
#define Q_RETURN_ARG(Type, data) QtPrivate::Invoke::returnArgument<Type>(QT_STRINGIFY(Type), data)
class QObject;
class QMetaMethod;
class QMetaEnum;
class QMetaProperty;
class QMetaClassInfo;
namespace QtPrivate {
class QMetaTypeInterface;
template<typename T> constexpr const QMetaTypeInterface *qMetaTypeInterfaceForType();
}
struct QMethodRawArguments
{
void **arguments;
};
#if QT_VERSION < QT_VERSION_CHECK(7, 0, 0)
class Q_CORE_EXPORT QGenericArgument
{
public:
inline QGenericArgument(const char *aName = nullptr, const void *aData = nullptr)
: _data(aData), _name(aName) {}
inline void *data() const { return const_cast<void *>(_data); }
inline const char *name() const { return _name; }
private:
const void *_data;
const char *_name;
};
class Q_CORE_EXPORT QGenericReturnArgument: public QGenericArgument
{
public:
inline QGenericReturnArgument(const char *aName = nullptr, void *aData = nullptr)
: QGenericArgument(aName, aData)
{}
};
template <class T>
class QArgument: public QGenericArgument
{
public:
inline QArgument(const char *aName, const T &aData)
: QGenericArgument(aName, static_cast<const void *>(&aData))
{}
};
template <class T>
class QArgument<T &>: public QGenericArgument
{
public:
inline QArgument(const char *aName, T &aData)
: QGenericArgument(aName, static_cast<const void *>(&aData))
{}
};
template <typename T>
class QReturnArgument: public QGenericReturnArgument
{
public:
inline QReturnArgument(const char *aName, T &aData)
: QGenericReturnArgument(aName, static_cast<void *>(&aData))
{}
};
#endif
struct QMetaMethodArgument
{
const QtPrivate::QMetaTypeInterface *metaType;
const char *name;
const void *data;
};
struct QMetaMethodReturnArgument
{
const QtPrivate::QMetaTypeInterface *metaType;
const char *name;
void *data;
};
namespace QtPrivate {
namespace Invoke {
#if QT_VERSION <= QT_VERSION_CHECK(7, 0, 0)
template <typename... Args>
using AreOldStyleArgs = std::disjunction<std::is_base_of<QGenericArgument, Args>...>;
template <typename T, typename... Args> using IfNotOldStyleArgs =
std::enable_if_t<!AreOldStyleArgs<Args...>::value, T>;
#else
template <typename T, typename... Args> using IfNotOldStyleArgs = T;
#endif
template <typename T> inline QMetaMethodArgument argument(const char *name, const T &t)
{
if constexpr ((std::is_lvalue_reference_v<T> && std::is_const_v<std::remove_reference_t<T>>) ||
!std::is_reference_v<T>) {
return { qMetaTypeInterfaceForType<T>(), name, std::addressof(t) };
} else {
return { nullptr, name, std::addressof(t) };
}
}
template <typename T> inline QMetaMethodReturnArgument returnArgument(const char *name, T &t)
{
return { qMetaTypeInterfaceForType<T>(), name, std::addressof(t) };
}
template <typename T> inline const char *typenameHelper(const T &)
{
return nullptr;
}
template <typename T> inline const void *dataHelper(const T &t)
{
return std::addressof(t);
}
template <typename T> inline const QMetaTypeInterface *metaTypeHelper(const T &)
{
return qMetaTypeInterfaceForType<T>();
}
inline const char *typenameHelper(QMetaMethodArgument a)
{ return a.name; }
inline const void *dataHelper(QMetaMethodArgument a)
{ return a.data; }
inline const QMetaTypeInterface *metaTypeHelper(QMetaMethodArgument a)
{ return a.metaType; }
inline const char *typenameHelper(const char *) = delete;
template <typename T> inline const void *dataHelper(const char *) = delete;
inline const QMetaTypeInterface *metaTypeHelper(const char *) = delete;
inline const char *typenameHelper(const char16_t *) = delete;
template <typename T> inline const void *dataHelper(const char16_t *) = delete;
inline const QMetaTypeInterface *metaTypeHelper(const char16_t *) = delete;
} // namespace QtPrivate::Invoke
template <typename... Args> inline auto invokeMethodHelper(QMetaMethodReturnArgument r, const Args &... arguments)
{
std::array params = { const_cast<const void *>(r.data), Invoke::dataHelper(arguments)... };
std::array names = { r.name, Invoke::typenameHelper(arguments)... };
std::array types = { r.metaType, Invoke::metaTypeHelper(arguments)... };
static_assert(params.size() == types.size());
static_assert(params.size() == names.size());
struct R {
decltype(params) parameters;
decltype(names) typeNames;
decltype(types) metaTypes;
constexpr qsizetype parameterCount() const { return qsizetype(parameters.size()); }
};
return R { params, names, types };
}
} // namespace QtPrivate
template <typename T> void qReturnArg(const T &&) = delete;
template <typename T> inline QMetaMethodReturnArgument qReturnArg(T &data)
{
return QtPrivate::Invoke::returnArgument(nullptr, data);
}
struct Q_CORE_EXPORT QMetaObject
{
class Connection;
const char *className() const;
const QMetaObject *superClass() const;
bool inherits(const QMetaObject *metaObject) const noexcept;
QObject *cast(QObject *obj) const
{ return const_cast<QObject *>(cast(const_cast<const QObject *>(obj))); }
const QObject *cast(const QObject *obj) const;
#if !defined(QT_NO_TRANSLATION) || defined(Q_QDOC)
QString tr(const char *s, const char *c, int n = -1) const;
#endif // QT_NO_TRANSLATION
QMetaType metaType() const;
int methodOffset() const;
int enumeratorOffset() const;
int propertyOffset() const;
int classInfoOffset() const;
int constructorCount() const;
int methodCount() const;
int enumeratorCount() const;
int propertyCount() const;
int classInfoCount() const;
int indexOfConstructor(const char *constructor) const;
int indexOfMethod(const char *method) const;
int indexOfSignal(const char *signal) const;
int indexOfSlot(const char *slot) const;
int indexOfEnumerator(const char *name) const;
int indexOfProperty(const char *name) const;
int indexOfClassInfo(const char *name) const;
QMetaMethod constructor(int index) const;
QMetaMethod method(int index) const;
QMetaEnum enumerator(int index) const;
QMetaProperty property(int index) const;
QMetaClassInfo classInfo(int index) const;
QMetaProperty userProperty() const;
static bool checkConnectArgs(const char *signal, const char *method);
static bool checkConnectArgs(const QMetaMethod &signal,
const QMetaMethod &method);
static QByteArray normalizedSignature(const char *method);
static QByteArray normalizedType(const char *type);
// internal index-based connect
static Connection connect(const QObject *sender, int signal_index,
const QObject *receiver, int method_index,
int type = 0, int *types = nullptr);
// internal index-based disconnect
static bool disconnect(const QObject *sender, int signal_index,
const QObject *receiver, int method_index);
static bool disconnectOne(const QObject *sender, int signal_index,
const QObject *receiver, int method_index);
// internal slot-name based connect
static void connectSlotsByName(QObject *o);
// internal index-based signal activation
static void activate(QObject *sender, int signal_index, void **argv);
static void activate(QObject *sender, const QMetaObject *, int local_signal_index, void **argv);
static void activate(QObject *sender, int signal_offset, int local_signal_index, void **argv);
#if QT_VERSION <= QT_VERSION_CHECK(7, 0, 0)
static bool invokeMethod(QObject *obj, const char *member,
Qt::ConnectionType,
QGenericReturnArgument ret,
QGenericArgument val0 = QGenericArgument(nullptr),
QGenericArgument val1 = QGenericArgument(),
QGenericArgument val2 = QGenericArgument(),
QGenericArgument val3 = QGenericArgument(),
QGenericArgument val4 = QGenericArgument(),
QGenericArgument val5 = QGenericArgument(),
QGenericArgument val6 = QGenericArgument(),
QGenericArgument val7 = QGenericArgument(),
QGenericArgument val8 = QGenericArgument(),
QGenericArgument val9 = QGenericArgument());
static inline bool invokeMethod(QObject *obj, const char *member,
QGenericReturnArgument ret,
QGenericArgument val0 = QGenericArgument(nullptr),
QGenericArgument val1 = QGenericArgument(),
QGenericArgument val2 = QGenericArgument(),
QGenericArgument val3 = QGenericArgument(),
QGenericArgument val4 = QGenericArgument(),
QGenericArgument val5 = QGenericArgument(),
QGenericArgument val6 = QGenericArgument(),
QGenericArgument val7 = QGenericArgument(),
QGenericArgument val8 = QGenericArgument(),
QGenericArgument val9 = QGenericArgument())
{
return invokeMethod(obj, member, Qt::AutoConnection, ret, val0, val1, val2, val3,
val4, val5, val6, val7, val8, val9);
}
static inline bool invokeMethod(QObject *obj, const char *member,
Qt::ConnectionType type,
QGenericArgument val0,
QGenericArgument val1 = QGenericArgument(),
QGenericArgument val2 = QGenericArgument(),
QGenericArgument val3 = QGenericArgument(),
QGenericArgument val4 = QGenericArgument(),
QGenericArgument val5 = QGenericArgument(),
QGenericArgument val6 = QGenericArgument(),
QGenericArgument val7 = QGenericArgument(),
QGenericArgument val8 = QGenericArgument(),
QGenericArgument val9 = QGenericArgument())
{
return invokeMethod(obj, member, type, QGenericReturnArgument(), val0, val1, val2,
val3, val4, val5, val6, val7, val8, val9);
}
static inline bool invokeMethod(QObject *obj, const char *member,
QGenericArgument val0,
QGenericArgument val1 = QGenericArgument(),
QGenericArgument val2 = QGenericArgument(),
QGenericArgument val3 = QGenericArgument(),
QGenericArgument val4 = QGenericArgument(),
QGenericArgument val5 = QGenericArgument(),
QGenericArgument val6 = QGenericArgument(),
QGenericArgument val7 = QGenericArgument(),
QGenericArgument val8 = QGenericArgument(),
QGenericArgument val9 = QGenericArgument())
{
return invokeMethod(obj, member, Qt::AutoConnection, QGenericReturnArgument(), val0,
val1, val2, val3, val4, val5, val6, val7, val8, val9);
}
#endif // Qt < 7.0
template <typename... Args> static
#ifdef Q_QDOC
bool
#else
QtPrivate::Invoke::IfNotOldStyleArgs<bool, Args...>
#endif
invokeMethod(QObject *obj, const char *member, Qt::ConnectionType c,
QMetaMethodReturnArgument r, Args &&... arguments)
{
auto h = QtPrivate::invokeMethodHelper(r, std::forward<Args>(arguments)...);
return invokeMethodImpl(obj, member, c, h.parameterCount(), h.parameters.data(),
h.typeNames.data(), h.metaTypes.data());
}
template <typename... Args> static
#ifdef Q_QDOC
bool
#else
QtPrivate::Invoke::IfNotOldStyleArgs<bool, Args...>
#endif
invokeMethod(QObject *obj, const char *member, Qt::ConnectionType c, Args &&... arguments)
{
QMetaMethodReturnArgument r = {};
return invokeMethod(obj, member, c, r, std::forward<Args>(arguments)...);
}
template <typename... Args> static
#ifdef Q_QDOC
bool
#else
QtPrivate::Invoke::IfNotOldStyleArgs<bool, Args...>
#endif
invokeMethod(QObject *obj, const char *member, QMetaMethodReturnArgument r,
Args &&... arguments)
{
return invokeMethod(obj, member, Qt::AutoConnection, r, std::forward<Args>(arguments)...);
}
template <typename... Args> static
#ifdef Q_QDOC
bool
#else
QtPrivate::Invoke::IfNotOldStyleArgs<bool, Args...>
#endif
invokeMethod(QObject *obj, const char *member, Args &&... arguments)
{
QMetaMethodReturnArgument r = {};
return invokeMethod(obj, member, Qt::AutoConnection, r, std::forward<Args>(arguments)...);
}
#ifdef Q_QDOC
template<typename Functor, typename FunctorReturnType>
static bool invokeMethod(QObject *context, Functor function, Qt::ConnectionType type = Qt::AutoConnection, FunctorReturnType *ret = nullptr);
template<typename Functor, typename FunctorReturnType>
static bool invokeMethod(QObject *context, Functor function, FunctorReturnType *ret);
#else
// invokeMethod() for member function pointer
template <typename Func>
static typename std::enable_if<QtPrivate::FunctionPointer<Func>::IsPointerToMemberFunction
&& !std::is_convertible<Func, const char*>::value
&& QtPrivate::FunctionPointer<Func>::ArgumentCount == 0, bool>::type
invokeMethod(typename QtPrivate::FunctionPointer<Func>::Object *object,
Func function,
Qt::ConnectionType type = Qt::AutoConnection,
typename QtPrivate::FunctionPointer<Func>::ReturnType *ret = nullptr)
{
return invokeMethodImpl(object, new QtPrivate::QSlotObjectWithNoArgs<Func>(function), type, ret);
}
template <typename Func>
static typename std::enable_if<QtPrivate::FunctionPointer<Func>::IsPointerToMemberFunction
&& !std::is_convertible<Func, const char*>::value
&& QtPrivate::FunctionPointer<Func>::ArgumentCount == 0, bool>::type
invokeMethod(typename QtPrivate::FunctionPointer<Func>::Object *object,
Func function,
typename QtPrivate::FunctionPointer<Func>::ReturnType *ret)
{
return invokeMethodImpl(object, new QtPrivate::QSlotObjectWithNoArgs<Func>(function), Qt::AutoConnection, ret);
}
// invokeMethod() for function pointer (not member)
template <typename Func>
static typename std::enable_if<!QtPrivate::FunctionPointer<Func>::IsPointerToMemberFunction
&& !std::is_convertible<Func, const char*>::value
&& QtPrivate::FunctionPointer<Func>::ArgumentCount == 0, bool>::type
invokeMethod(QObject *context, Func function,
Qt::ConnectionType type = Qt::AutoConnection,
typename QtPrivate::FunctionPointer<Func>::ReturnType *ret = nullptr)
{
return invokeMethodImpl(context, new QtPrivate::QFunctorSlotObjectWithNoArgsImplicitReturn<Func>(function), type, ret);
}
template <typename Func>
static typename std::enable_if<!QtPrivate::FunctionPointer<Func>::IsPointerToMemberFunction
&& !std::is_convertible<Func, const char*>::value
&& QtPrivate::FunctionPointer<Func>::ArgumentCount == 0, bool>::type
invokeMethod(QObject *context, Func function,
typename QtPrivate::FunctionPointer<Func>::ReturnType *ret)
{
return invokeMethodImpl(context, new QtPrivate::QFunctorSlotObjectWithNoArgsImplicitReturn<Func>(function), Qt::AutoConnection, ret);
}
// invokeMethod() for Functor
template <typename Func>
static typename std::enable_if<!QtPrivate::FunctionPointer<Func>::IsPointerToMemberFunction
&& QtPrivate::FunctionPointer<Func>::ArgumentCount == -1
&& !std::is_convertible<Func, const char*>::value, bool>::type
invokeMethod(QObject *context, Func function,
Qt::ConnectionType type = Qt::AutoConnection, decltype(function()) *ret = nullptr)
{
return invokeMethodImpl(context,
new QtPrivate::QFunctorSlotObjectWithNoArgs<Func, decltype(function())>(std::move(function)),
type,
ret);
}
template <typename Func>
static typename std::enable_if<!QtPrivate::FunctionPointer<Func>::IsPointerToMemberFunction
&& QtPrivate::FunctionPointer<Func>::ArgumentCount == -1
&& !std::is_convertible<Func, const char*>::value, bool>::type
invokeMethod(QObject *context, Func function, decltype(function()) *ret)
{
return invokeMethodImpl(context,
new QtPrivate::QFunctorSlotObjectWithNoArgs<Func, decltype(function())>(std::move(function)),
Qt::AutoConnection,
ret);
}
#endif
#if QT_VERSION < QT_VERSION_CHECK(7, 0, 0)
QObject *newInstance(QGenericArgument val0,
QGenericArgument val1 = QGenericArgument(),
QGenericArgument val2 = QGenericArgument(),
QGenericArgument val3 = QGenericArgument(),
QGenericArgument val4 = QGenericArgument(),
QGenericArgument val5 = QGenericArgument(),
QGenericArgument val6 = QGenericArgument(),
QGenericArgument val7 = QGenericArgument(),
QGenericArgument val8 = QGenericArgument(),
QGenericArgument val9 = QGenericArgument()) const;
#endif
template <typename... Args>
#ifdef Q_QDOC
QObject *
#else
QtPrivate::Invoke::IfNotOldStyleArgs<QObject *, Args...>
#endif
newInstance(Args &&... arguments) const
{
auto h = QtPrivate::invokeMethodHelper(QMetaMethodReturnArgument{}, std::forward<Args>(arguments)...);
return newInstanceImpl(this, h.parameterCount(), h.parameters.data(),
h.typeNames.data(), h.metaTypes.data());
}
enum Call {
InvokeMetaMethod,
ReadProperty,
WriteProperty,
ResetProperty,
CreateInstance,
IndexOfMethod,
RegisterPropertyMetaType,
RegisterMethodArgumentMetaType,
BindableProperty,
CustomCall
};
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 {
using Getter = const QMetaObject *(*)();
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
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 SuperData(Getter g) : direct(g()) {}
constexpr operator const QMetaObject *() const
{ return direct; }
template <const QMetaObject &MO> static constexpr SuperData link()
{ return SuperData(QMetaObject::staticMetaObject<MO>()); }
#endif
};
struct Data { // private data
SuperData superdata;
const uint *stringdata;
const uint *data;
typedef void (*StaticMetacallFunction)(QObject *, QMetaObject::Call, int, void **);
StaticMetacallFunction static_metacall;
const SuperData *relatedMetaObjects;
const QtPrivate::QMetaTypeInterface *const *metaTypes;
void *extradata; //reserved for future use
} d;
private:
static bool invokeMethodImpl(QObject *object, const char *member, Qt::ConnectionType type,
qsizetype parameterCount, const void *const *parameters, const char *const *names,
const QtPrivate::QMetaTypeInterface * const *metaTypes);
static bool invokeMethodImpl(QObject *object, QtPrivate::QSlotObjectBase *slot, Qt::ConnectionType type, void *ret);
static QObject *newInstanceImpl(const QMetaObject *mobj, qsizetype parameterCount,
const void **parameters, const char **typeNames,
const QtPrivate::QMetaTypeInterface **metaTypes);
friend class QTimer;
};
class Q_CORE_EXPORT QMetaObject::Connection {
void *d_ptr; //QObjectPrivate::Connection*
explicit Connection(void *data) : d_ptr(data) { }
friend class QObject;
friend class QObjectPrivate;
friend struct QMetaObject;
bool isConnected_helper() const;
public:
~Connection();
Connection();
Connection(const Connection &other);
Connection &operator=(const Connection &other);
#ifdef Q_QDOC
operator bool() const;
#else
// still using the restricted bool trick here, in order to support
// code using copy-init (e.g. `bool ok = connect(...)`)
typedef void *Connection::*RestrictedBool;
operator RestrictedBool() const { return d_ptr && isConnected_helper() ? &Connection::d_ptr : nullptr; }
#endif
Connection(Connection &&other) noexcept : d_ptr(std::exchange(other.d_ptr, nullptr)) {}
QT_MOVE_ASSIGNMENT_OPERATOR_IMPL_VIA_PURE_SWAP(Connection)
void swap(Connection &other) noexcept { qt_ptr_swap(d_ptr, other.d_ptr); }
};
inline void swap(QMetaObject::Connection &lhs, QMetaObject::Connection &rhs) noexcept
{
lhs.swap(rhs);
}
inline const QMetaObject *QMetaObject::superClass() const
{ return d.superdata; }
namespace QtPrivate {
/* Trait that tells is a the Object has a Q_OBJECT macro */
template <typename Object> struct HasQ_OBJECT_Macro {
template <typename T>
static char test(int (T::*)(QMetaObject::Call, int, void **));
static int test(int (Object::*)(QMetaObject::Call, int, void **));
enum { Value = sizeof(test(&Object::qt_metacall)) == sizeof(int) };
};
}
QT_END_NAMESPACE
#endif // QOBJECTDEFS_H