QMetaMethodInvoker Class Reference

#include <qmetaobject_p.h>

Inheritance diagram for QMetaMethodInvoker:

Collaboration diagram for QMetaMethodInvoker:

Public Types
enum class	InvokeFailReason : int {   ReturnTypeMismatch = -1 , DeadLockDetected = -2 , CallViaVirtualFailed = -3 , ConstructorCallOnObject = -4 ,   ConstructorCallWithoutResult = -5 , ConstructorCallFailed = -6 , CouldNotQueueParameter = -0x1000 , None = 0 ,   TooFewArguments , FormalParameterMismatch = 0x1000 }
Public Types inherited from QMetaMethod
enum	Access { Private , Protected , Public }
	This enum describes the access level of a method, following the conventions used in C++. More...
enum	MethodType { Method , Signal , Slot , Constructor }
	\value Method The function is a plain member function. More...
enum	Attributes { Compatibility = 0x1 , Cloned = 0x2 , Scriptable = 0x4 }

Static Public Member Functions
static InvokeFailReason Q_CORE_EXPORT	invokeImpl (QMetaMethod self, void *target, Qt::ConnectionType, qsizetype paramCount, const void *const *parameters, const char *const *typeNames, const QtPrivate::QMetaTypeInterface *const *metaTypes)
Static Public Member Functions inherited from QMetaMethod
template<typename PointerToMemberFunction >
static QMetaMethod	fromSignal (PointerToMemberFunction signal)

Additional Inherited Members
Public Member Functions inherited from QMetaMethod
constexpr	QMetaMethod ()
QByteArray	methodSignature () const
QByteArray	name () const
const char *	typeName () const
	Returns the return type name of this method.
int	returnType () const
QMetaType	returnMetaType () const
int	parameterCount () const
int	parameterType (int index) const
QMetaType	parameterMetaType (int index) const
void	getParameterTypes (int *types) const
QList< QByteArray >	parameterTypes () const
	Returns a list of parameter types.
QByteArray	parameterTypeName (int index) const
QList< QByteArray >	parameterNames () const
	Returns a list of parameter names.
const char *	tag () const
	Returns the tag associated with this method.
Access	access () const
	Returns the access specification of this method (private, protected, or public).
MethodType	methodType () const
	Returns the type of this method (signal, slot, or method).
int	attributes () const
int	methodIndex () const
int	relativeMethodIndex () const
int	revision () const
bool	isConst () const
const QMetaObject *	enclosingMetaObject () const
bool	invoke (QObject *object, Qt::ConnectionType connectionType, QGenericReturnArgument returnValue, 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()) const
	\obsolete [6.5] Please use the variadic overload of this function
bool	invoke (QObject *object, QGenericReturnArgument returnValue, 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()) const
bool	invoke (QObject *object, Qt::ConnectionType connectionType, 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
bool	invoke (QObject *object, 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
bool	invokeOnGadget (void *gadget, QGenericReturnArgument returnValue, 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()) const
bool	invokeOnGadget (void *gadget, 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
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. \obsolete [6.5] Please use the variadic overload of this function.
template<typename... Args>
QtPrivate::Invoke::IfNotOldStyleArgs< bool, Args... >	invoke (QObject *obj, Qt::ConnectionType c, QMetaMethodReturnArgument r, Args &&... arguments) const
template<typename... Args>
QtPrivate::Invoke::IfNotOldStyleArgs< bool, Args... >	invoke (QObject *obj, Qt::ConnectionType c, Args &&... arguments) const
template<typename... Args>
QtPrivate::Invoke::IfNotOldStyleArgs< bool, Args... >	invoke (QObject *obj, QMetaMethodReturnArgument r, Args &&... arguments) const
template<typename... Args>
QtPrivate::Invoke::IfNotOldStyleArgs< bool, Args... >	invoke (QObject *obj, Args &&... arguments) const
template<typename... Args>
QtPrivate::Invoke::IfNotOldStyleArgs< bool, Args... >	invokeOnGadget (void *gadget, QMetaMethodReturnArgument r, Args &&... arguments) const
template<typename... Args>
QtPrivate::Invoke::IfNotOldStyleArgs< bool, Args... >	invokeOnGadget (void *gadget, Args &&... arguments) const
bool	isValid () const
Protected Attributes inherited from QMetaMethod
const QMetaObject *	mobj
Data	data
Related Symbols inherited from QMetaMethod
QByteArray	signature () const
	\macro Q_METAMETHOD_INVOKE_MAX_ARGS

Detailed Description

Definition at line 138 of file qmetaobject_p.h.

Member Enumeration Documentation

InvokeFailReason

enum class QMetaMethodInvoker::InvokeFailReason : int

strong

Enumerator
ReturnTypeMismatch
DeadLockDetected
CallViaVirtualFailed
ConstructorCallOnObject
ConstructorCallWithoutResult
ConstructorCallFailed
CouldNotQueueParameter
None
TooFewArguments
FormalParameterMismatch

Definition at line 143 of file qmetaobject_p.h.

Member Function Documentation

invokeImpl()

auto QMetaMethodInvoker::invokeImpl ( QMetaMethod  self, void *  target, Qt::ConnectionType  connectionType, qsizetype  paramCount, const void *const *  parameters, const char *const *  typeNames, const QtPrivate::QMetaTypeInterface *const *  metaTypes  )

static

Definition at line 2570 of file qmetaobject.cpp.

References QSemaphore::acquire(), args, Qt::AutoConnection, QLatin1StringView::begin(), Qt::BlockingQueuedConnection, QMetaObjectPrivate::className, QString::constData(), create(), QMetaObject::CreateInstance, QThread::currentThreadId(), Qt::DirectConnection, QLatin1StringView::end(), QMetaType::fromName(), QThreadData::get2(), i, QMetaType::id(), QMetaObject::InvokeMetaMethod, IsUnresolvedType, QMetaType::isValid(), QBasicAtomicPointer< X >::loadRelaxed(), QMetaObject::metacall(), QtPrivate::QMetaTypeInterface::name, QCoreApplication::postEvent(), priv(), Q_ASSERT, QT_VERSION, QT_VERSION_CHECK, Qt::QueuedConnection, qWarning, QMetaType::registerType(), stringDataView(), QObject::thread(), QThreadData::threadId, QtPrivate::QMetaTypeInterface::typeId, and TypeNameIndexMask.

Here is the call graph for this function:

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The documentation for this class was generated from the following files:

• qtbase/src/corelib/kernel/qmetaobject_p.h
• qtbase/src/corelib/kernel/qmetaobject.cpp