#include <qmetaobject_p.h>

Inheritance diagram for QMetaObjectPrivate:

Collaboration diagram for QMetaObjectPrivate:

Public Types
enum	{ OutputRevision = 12 }

enum	{ IntsPerMethod = QMetaMethod::Data::Size }

enum	{ IntsPerEnum = QMetaEnum::Data::Size }

enum	{ IntsPerProperty = QMetaProperty::Data::Size }

enum class	Which { Name , Alias }

enum	DisconnectType { DisconnectAll , DisconnectOne }

Static Public Member Functions
static const QMetaObjectPrivate *	get (const QMetaObject *metaobject)

static int	originalClone (const QMetaObject *obj, int local_method_index)

static QByteArray	decodeMethodSignature (const char *signature, QArgumentTypeArray &types)

static int	indexOfSignalRelative (const QMetaObject *baseObject, const QByteArray &name, int argc, const QArgumentType types)

static int	indexOfSlotRelative (const QMetaObject *m, const QByteArray &name, int argc, const QArgumentType types)

static int	indexOfSignal (const QMetaObject m, const QByteArray &name, int argc, const QArgumentType types)

static int	indexOfSlot (const QMetaObject m, const QByteArray &name, int argc, const QArgumentType types)

static int	indexOfMethod (const QMetaObject m, const QByteArray &name, int argc, const QArgumentType types)

static int	indexOfConstructor (const QMetaObject m, const QByteArray &name, int argc, const QArgumentType types)

static int	indexOfEnumerator (const QMetaObject *m, QByteArrayView name, Which which)

static int	indexOfEnumerator (const QMetaObject *m, QByteArrayView name)

static Q_CORE_EXPORT QMetaMethod	signal (const QMetaObject *m, int signal_index)

static int	signalOffset (const QMetaObject *m)

static Q_CORE_EXPORT int	absoluteSignalCount (const QMetaObject *m)

static Q_CORE_EXPORT int	signalIndex (const QMetaMethod &m)

static bool	checkConnectArgs (int signalArgc, const QArgumentType signalTypes, int methodArgc, const QArgumentType methodTypes)

static bool	checkConnectArgs (const QMetaMethodPrivate signal, const QMetaMethodPrivate method)

static QList< QByteArray >	parameterTypeNamesFromSignature (const char *signature)

static void	memberIndexes (const QObject obj, const QMetaMethod &member, int signalIndex, int *methodIndex)

static QObjectPrivate::Connection *	connect (const QObject sender, int signal_index, const QMetaObject smeta, const QObject receiver, int method_index_relative, const QMetaObject rmeta=nullptr, int type=0, int *types=nullptr)

static bool	disconnect (const QObject sender, int signal_index, const QMetaObject smeta, const QObject receiver, int method_index, void *slot, DisconnectType=DisconnectAll)

static bool	disconnectHelper (QObjectPrivate::ConnectionData connections, int signalIndex, const QObject receiver, int method_index, void *slot, QBasicMutex senderMutex, DisconnectType=DisconnectAll)

template<int MethodType>
static int	indexOfMethodRelative (const QMetaObject *baseObject, const QByteArray &name, int argc, const QArgumentType types)

static bool	methodMatch (const QMetaObject m, const QMetaMethod &method, const QByteArray &name, int argc, const QArgumentType types)

static Q_CORE_EXPORT QMetaMethod	firstMethod (const QMetaObject *baseObject, QByteArrayView name)

Public Attributes
int	revision

int	className

int	classInfoCount

int	classInfoData

int	methodCount

int	methodData

int	propertyCount

int	propertyData

int	enumeratorCount

int	enumeratorData

int	constructorCount

int	constructorData

int	flags

int	signalCount

Detailed Description

Definition at line 170 of file qmetaobject_p.h.

Member Enumeration Documentation

◆ anonymous enum

anonymous enum

Enumerator
OutputRevision

Definition at line 179 of file qmetaobject_p.h.

◆ anonymous enum

anonymous enum

Enumerator
IntsPerMethod

Definition at line 180 of file qmetaobject_p.h.

◆ anonymous enum

anonymous enum

Enumerator
IntsPerEnum

Definition at line 181 of file qmetaobject_p.h.

◆ anonymous enum

anonymous enum

Enumerator
IntsPerProperty

Definition at line 182 of file qmetaobject_p.h.

◆ DisconnectType

enum QMetaObjectPrivate::DisconnectType

Enumerator
DisconnectAll
DisconnectOne

Definition at line 240 of file qmetaobject_p.h.

◆ Which

enum class QMetaObjectPrivate::Which

strong

Enumerator
Name
Alias

Definition at line 216 of file qmetaobject_p.h.

Member Function Documentation

◆ absoluteSignalCount()

int QMetaObjectPrivate::absoluteSignalCount ( const QMetaObject * m )

static

Since: 5.0

Returns the number of signals for the class m, including the signals for the base class.

Similar to QMetaObject::methodCount(), but non-signal methods are excluded.

Definition at line 932 of file qmetaobject.cpp.

References priv(), and Q_ASSERT.

Referenced by QMetaObject::connectSlotsByName(), and QQmlContext::setContextProperty().

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◆ checkConnectArgs() [1/2]

bool QMetaObjectPrivate::checkConnectArgs	(	const QMetaMethodPrivate *	signal,
		const QMetaMethodPrivate *	method )

static

Returns true if the signal and method arguments are compatible; otherwise returns false.

Definition at line 1007 of file qmetaobject.cpp.

References i, IsUnresolvedType, method, QMetaMethod::Signal, signal, typeFromTypeInfo(), and typeNameFromTypeInfo().

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◆ checkConnectArgs() [2/2]

bool QMetaObjectPrivate::checkConnectArgs	(	int	signalArgc,
		const QArgumentType *	signalTypes,
		int	methodArgc,
		const QArgumentType *	methodTypes )

static

Returns true if the signalTypes and methodTypes are compatible; otherwise returns false.

Definition at line 989 of file qmetaobject.cpp.

References i.

Referenced by QMetaObject::checkConnectArgs(), and QObject::connect().

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◆ connect()

QObjectPrivate::Connection * QMetaObjectPrivate::connect	(	const QObject *	sender,
		int	signal_index,
		const QMetaObject *	smeta,
		const QObject *	receiver,
		int	method_index,
		const QMetaObject *	rmeta = nullptr,
		int	type = 0,
		int *	types = nullptr )

static

Same as the QMetaObject::connect, but signal_index must be the result of QObjectPrivate::signalIndex

method_index is relative to the rmeta metaobject, if rmeta is \nullptr, then it is absolute index

the QObjectPrivate::Connection* has a refcount of 2, so it must be passed to a QMetaObject::Connection

Definition at line 3576 of file qobject.cpp.

References c2, get(), QObjectPrivate::get(), Q_ASSERT, QThreadData::ref(), QObjectPrivate::Connection::sender, signal(), signalSlotLock(), Qt::SingleShotConnection, Qt::UniqueConnection, and QOrderedMutexLocker::unlock().

Referenced by QObject::connect(), QObject::connect(), QMetaObject::connect(), and QMetaObject::connectSlotsByName().

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◆ decodeMethodSignature()

QByteArray QMetaObjectPrivate::decodeMethodSignature	(	const char *	signature,
		QArgumentTypeArray &	types )

static

Definition at line 778 of file qmetaobject.cpp.

References argumentTypesFromString(), QByteArray::fromRawData(), Q_ASSERT, and QByteArray().

Referenced by QObject::connect(), QObject::disconnect(), QMetaObject::indexOfConstructor(), QMetaObject::indexOfMethod(), QMetaObject::indexOfSignal(), QMetaObject::indexOfSlot(), and QObjectPrivate::signalIndex().

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◆ disconnect()

bool QMetaObjectPrivate::disconnect	(	const QObject *	sender,
		int	signal_index,
		const QMetaObject *	smeta,
		const QObject *	receiver,
		int	method_index,
		void **	slot,
		DisconnectType	disconnectType = DisconnectAll )

static

Same as the QMetaObject::disconnect, but signal_index must be the result of QObjectPrivate::signalIndex

Definition at line 3711 of file qobject.cpp.

References QObjectPrivate::connections, QObjectPrivate::get(), signal(), signalSlotLock(), and QMutexLocker< Mutex >::unlock().

Referenced by QObject::disconnect(), QObject::disconnect(), QMetaObject::disconnect(), QObjectPrivate::disconnect(), and QMetaObject::disconnectOne().

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◆ disconnectHelper()

bool QMetaObjectPrivate::disconnectHelper	(	QObjectPrivate::ConnectionData *	connections,
		int	signalIndex,
		const QObject *	receiver,
		int	method_index,
		void **	slot,
		QBasicMutex *	senderMutex,
		DisconnectType	disconnectType = DisconnectAll )

inlinestatic

Helper function to remove the connection from the senders list and set the receivers to \nullptr

Definition at line 3671 of file qobject.cpp.

References QObjectPrivate::connections, QOrderedMutexLocker::relock(), signalIndex, and signalSlotLock().

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◆ firstMethod()

QMetaMethod QMetaObjectPrivate::firstMethod	(	const QMetaObject *	baseObject,
		QByteArrayView	name )

static

Returns the first method with name name found in baseObject

Definition at line 669 of file qmetaobject.cpp.

References i, priv(), and QMetaObject::superClass().

Referenced by QV4::QQmlValueTypeWrapper::dataForPropertyKey().

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◆ get()

static const QMetaObjectPrivate * QMetaObjectPrivate::get ( const QMetaObject * metaobject )

inlinestatic

Definition at line 194 of file qmetaobject_p.h.

Referenced by computeOffsets(), QObject::connect(), connect(), QQmlPropertyCache::copyAndAppend(), QObject::disconnect(), QQmlBindingInstantiationContext::instantiatingPropertyCache(), QMetaMethod::invokeOnGadget(), QMetaMethod::isConst(), metaObjectSignalCount(), originalClone(), and QObjectPrivate::signalIndex().

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◆ indexOfConstructor()

int QMetaObjectPrivate::indexOfConstructor	(	const QMetaObject *	m,
		const QByteArray &	name,
		int	argc,
		const QArgumentType *	types )

static

Definition at line 899 of file qmetaobject.cpp.

References i, method, methodMatch(), and priv().

Referenced by QMetaObject::indexOfConstructor().

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◆ indexOfEnumerator() [1/2]

int QMetaObjectPrivate::indexOfEnumerator	(	const QMetaObject *	m,
		QByteArrayView	name )

static

Definition at line 1067 of file qmetaobject.cpp.

References indexOfEnumerator().

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◆ indexOfEnumerator() [2/2]

int QMetaObjectPrivate::indexOfEnumerator	(	const QMetaObject *	m,
		QByteArrayView	name,
		Which	which )

static

Definition at line 1077 of file qmetaobject.cpp.

References d, i, Name, priv(), and stringDataView().

Referenced by QMetaObject::indexOfEnumerator(), and indexOfEnumerator().

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◆ indexOfMethod()

int QMetaObjectPrivate::indexOfMethod	(	const QMetaObject *	m,
		const QByteArray &	name,
		int	argc,
		const QArgumentType *	types )

static

Definition at line 890 of file qmetaobject.cpp.

References i.

Referenced by QObject::disconnect(), and indexOfSignalRelative().

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◆ indexOfMethodRelative()

template<int MethodType>

int QMetaObjectPrivate::indexOfMethodRelative	(	const QMetaObject **	baseObject,
		const QByteArray &	name,
		int	argc,
		const QArgumentType *	types )

inlinestatic

helper function for indexOf{Method,Slot,Signal}, returns the relative index of the method within the baseObject MethodType might be MethodSignal or MethodSlot, or \nullptr to match everything.

Definition at line 690 of file qmetaobject.cpp.

References QMetaObject::d, i, methodMatch(), MethodSignal, MethodSlot, priv(), and Q_ASSERT.

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◆ indexOfSignal()

int QMetaObjectPrivate::indexOfSignal	(	const QMetaObject *	m,
		const QByteArray &	name,
		int	argc,
		const QArgumentType *	types )

static

Definition at line 872 of file qmetaobject.cpp.

References i, and indexOfSignalRelative().

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◆ indexOfSignalRelative()

int QMetaObjectPrivate::indexOfSignalRelative	(	const QMetaObject **	baseObject,
		const QByteArray &	name,
		int	argc,
		const QArgumentType *	types )

static

Same as QMetaObject::indexOfSignal, but the result is the local offset to the base object.

baseObject will be adjusted to the enclosing QMetaObject, or \nullptr if the signal is not found

Definition at line 823 of file qmetaobject.cpp.

References i, indexOfMethod(), and qWarning.

Referenced by QObject::connect(), QObject::disconnect(), QMetaObject::indexOfSignal(), indexOfSignal(), and QObjectPrivate::signalIndex().

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◆ indexOfSlot()

int QMetaObjectPrivate::indexOfSlot	(	const QMetaObject *	m,
		const QByteArray &	name,
		int	argc,
		const QArgumentType *	types )

static

Definition at line 881 of file qmetaobject.cpp.

References i, and indexOfSlotRelative().

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◆ indexOfSlotRelative()

int QMetaObjectPrivate::indexOfSlotRelative	(	const QMetaObject **	m,
		const QByteArray &	name,
		int	argc,
		const QArgumentType *	types )

static

Definition at line 865 of file qmetaobject.cpp.

Referenced by QObject::connect(), QMetaObject::indexOfSlot(), and indexOfSlot().

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◆ memberIndexes()

void QMetaObjectPrivate::memberIndexes	(	const QObject *	obj,
		const QMetaMethod &	member,
		int *	signalIndex,
		int *	methodIndex )

static

This helper function calculates signal and method index for the given member in the specified class.

\list

If member.mobj is \nullptr then both signalIndex and methodIndex are set to -1.

If specified member is not a member of obj instance class (or one of its parent classes) then both signalIndex and methodIndex are set to -1. \endlist

This function is used by QObject::connect and QObject::disconnect which are working with QMetaMethod.

signalIndex is set to the signal index of member. If the member specified is not signal this variable is set to -1.

methodIndex is set to the method index of the member. If the member is not a method of the object specified by the obj argument this variable is set to -1.

Definition at line 2843 of file qobject.cpp.

References computeOffsets(), QMetaObject::d, QMetaMethod::methodType(), QMetaMethod::mobj, QMetaMethod::relativeMethodIndex(), QMetaMethod::Signal, and signalIndex.

Referenced by QObject::connect(), and QObject::disconnect().

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◆ methodMatch()

bool QMetaObjectPrivate::methodMatch	(	const QMetaObject *	m,
		const QMetaMethod &	method,
		const QByteArray &	name,
		int	argc,
		const QArgumentType *	types )

static

Definition at line 633 of file qmetaobject.cpp.

References i, method, priv(), stringData(), typeFromTypeInfo(), and typeNameFromTypeInfo().

Referenced by indexOfConstructor(), and indexOfMethodRelative().

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◆ originalClone()

int QMetaObjectPrivate::originalClone	(	const QMetaObject *	mobj,
		int	local_method_index )

static

If the local_method_index is a cloned method, return the index of the original.

Example: if the index of "destroyed()" is passed, the index of "destroyed(QObject*)" is returned

Definition at line 4289 of file qmetaobject.cpp.

References get(), MethodCloned, methodCount, and Q_ASSERT.

Referenced by QObject::connect(), QObject::disconnect(), QObject::isSignalConnected(), methodIndexToSignalIndex(), and QObjectPrivate::signalIndex().

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◆ parameterTypeNamesFromSignature()

QList< QByteArray > QMetaObjectPrivate::parameterTypeNamesFromSignature ( const char * signature )

static

Returns the parameter type names extracted from the given signature.

Definition at line 4304 of file qmetaobject.cpp.

References begin(), list, and QByteArray().

Referenced by QMetaMethodBuilderPrivate::parameterTypes().

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◆ signal()

QMetaMethod QMetaObjectPrivate::signal	(	const QMetaObject *	m,
		int	signal_index )

static

Since: 5.0

Returns the signal for the given meta-object m at signal_index.

It it different from QMetaObject::method(); the index should not include non-signal methods.

Definition at line 966 of file qmetaobject.cpp.

References d, i, priv(), Q_ASSERT, signal, and signalOffset().

Referenced by QSingleShotTimer::QSingleShotTimer(), QObject::~QObject(), QObject::connect(), connect(), QQmlNotifierEndpoint::connect(), QObjectPrivate::connectImpl(), QMetaObject::connectSlotsByName(), QQmlBinding::dependencies(), QQmlNotifierEndpoint::disconnect(), disconnect(), QObject::dumpObjectInfo(), QQmlBoundSignalExpression::evaluate(), QQmlPropertyCache::originalClone(), Q_TRACE_POINT(), QQmlBoundSignal_callback(), QTest::qSignalDumperCallback(), queued_activate(), QObjectPrivate::removeConnection(), QObject::senderSignalIndex(), QQmlData::signalEmitted(), and QQmlPropertyCache::signalParameterNames().

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◆ signalIndex()

int QMetaObjectPrivate::signalIndex ( const QMetaMethod & m )

static

Since: 5.0

Returns the index of the signal method m.

Similar to QMetaMethod::methodIndex(), but non-signal methods are excluded.

Definition at line 950 of file qmetaobject.cpp.

References signalOffset().

Referenced by QQmlEngine::captureProperty(), QQmlPrivate::initObjectLookup(), QQmlPropertyData::load(), QQmlThreadNotifierProxyObject::qt_metacall(), QQmlPropertyPrivate::signalIndex(), and QQmlPropertyToPropertyBinding::update().

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◆ signalOffset()

int QMetaObjectPrivate::signalOffset ( const QMetaObject * m )

inlinestatic

Since: 5.0

Returns the signal offset for the class m; i.e., the index position of the class's first signal.

Similar to QMetaObject::methodOffset(), but non-signal methods are excluded.

Definition at line 221 of file qmetaobject_p.h.

References Q_ASSERT, and signalCount.

Referenced by QSingleShotTimer::QSingleShotTimer(), QMetaObject::activate(), QObject::connect(), QObject::disconnect(), QObject::isSignalConnected(), signal(), QObjectPrivate::signalIndex(), and signalIndex().

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Member Data Documentation

◆ classInfoCount

int QMetaObjectPrivate::classInfoCount

Definition at line 186 of file qmetaobject_p.h.

◆ classInfoData

int QMetaObjectPrivate::classInfoData

Definition at line 186 of file qmetaobject_p.h.

◆ className

int QMetaObjectPrivate::className

Definition at line 185 of file qmetaobject_p.h.

◆ constructorCount

int QMetaObjectPrivate::constructorCount

Definition at line 190 of file qmetaobject_p.h.

◆ constructorData

int QMetaObjectPrivate::constructorData

Definition at line 190 of file qmetaobject_p.h.

◆ enumeratorCount

int QMetaObjectPrivate::enumeratorCount

Definition at line 189 of file qmetaobject_p.h.

◆ enumeratorData

int QMetaObjectPrivate::enumeratorData

Definition at line 189 of file qmetaobject_p.h.

◆ flags

int QMetaObjectPrivate::flags

Definition at line 191 of file qmetaobject_p.h.

◆ methodCount

int QMetaObjectPrivate::methodCount

Definition at line 187 of file qmetaobject_p.h.

Referenced by originalClone().

◆ methodData

int QMetaObjectPrivate::methodData

Definition at line 187 of file qmetaobject_p.h.

◆ propertyCount

int QMetaObjectPrivate::propertyCount

Definition at line 188 of file qmetaobject_p.h.

◆ propertyData

int QMetaObjectPrivate::propertyData

Definition at line 188 of file qmetaobject_p.h.

◆ revision

int QMetaObjectPrivate::revision

Definition at line 184 of file qmetaobject_p.h.

◆ signalCount

int QMetaObjectPrivate::signalCount

Definition at line 192 of file qmetaobject_p.h.

Referenced by signalOffset().

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

qtbase/src/corelib/kernel/qmetaobject_p.h (b3441b4127813148a701b7d538453bfdbe2315a4)
qtbase/src/corelib/kernel/qmetaobject.cpp (23f983fa09aa378129ed34de8ab4c2ec95d18ab9)
qtbase/src/corelib/kernel/qobject.cpp (99f78eb7085b19c78153bdfbff9d24a2098a2a57)

Public Types

Static Public Member Functions

Public Attributes

Detailed Description

Member Enumeration Documentation

◆ anonymous enum

◆ anonymous enum

◆ anonymous enum

◆ anonymous enum

◆ DisconnectType

◆ Which

Member Function Documentation

◆ absoluteSignalCount()

◆ checkConnectArgs() [1/2]

◆ checkConnectArgs() [2/2]

◆ connect()

◆ decodeMethodSignature()

◆ disconnect()

◆ disconnectHelper()

◆ firstMethod()

◆ get()

◆ indexOfConstructor()

◆ indexOfEnumerator() [1/2]

◆ indexOfEnumerator() [2/2]

◆ indexOfMethod()

◆ indexOfMethodRelative()

◆ indexOfSignal()

◆ indexOfSignalRelative()

◆ indexOfSlot()

◆ indexOfSlotRelative()

◆ memberIndexes()

◆ methodMatch()

◆ originalClone()

◆ parameterTypeNamesFromSignature()

◆ signal()

◆ signalIndex()

◆ signalOffset()

Member Data Documentation

◆ classInfoCount

◆ classInfoData

◆ className

◆ constructorCount

◆ constructorData

◆ enumeratorCount

◆ enumeratorData

◆ flags

◆ methodCount

◆ methodData

◆ propertyCount

◆ propertyData

◆ revision

◆ signalCount