QDeclarativeCompiledBindingsPrivate Class Reference

Inheritance diagram for QDeclarativeCompiledBindingsPrivate:

Classes
struct	Binding

Public Types
typedef QDeclarativeNotifierEndpoint	Subscription
Public Types inherited from QObjectPrivate
typedef void(*	StaticMetaCallFunction) (QObject *, QMetaObject::Call, int, void **)

Public Functions
void	disconnectAll ()
void	disconnectOne (Binding *bindingToDisconnect)
void	findgeneric (Register *output, int subIdx, QDeclarativeContextData *context, const QScriptDeclarativeClass::Identifier &name, bool isTerminal)
QDeclarativePropertyCache::Data *	findproperty (QObject *obj, const QScriptDeclarativeClass::Identifier &name, QDeclarativeEnginePrivate *enginePriv, QDeclarativePropertyCache::Data &local)
bool	findproperty (QObject *obj, Register *output, QDeclarativeEnginePrivate *enginePriv, int subIdx, const QScriptDeclarativeClass::Identifier &name, bool isTerminal)
void	init ()
	QDeclarativeCompiledBindingsPrivate ()
void	run (Binding *, QDeclarativePropertyPrivate::WriteFlags flags)
void	run (int instr, QDeclarativeContextData *context, QDeclarativeDelayedError *error, QObject *scope, QObject *output, QDeclarativePropertyPrivate::WriteFlags storeFlags)
void	subscribe (QObject *o, int notifyIndex, int subIndex)
void	subscribeId (QDeclarativeContextData *p, int idIndex, int subIndex)
virtual	~QDeclarativeCompiledBindingsPrivate ()
Public Functions inherited from QObjectPrivate
void	_q_reregisterTimers (void *pointer)
void	addConnection (int signal, Connection *c)
void	cleanConnectionLists ()
void	connectNotify (const char *signal)
void	deleteChildren ()
void	disconnectNotify (const char *signal)
bool	isSender (const QObject *receiver, const char *signal) const
bool	isSignalConnected (uint signalIdx) const
	Returns true if the signal with index signal_index from object sender is connected. More...
void	moveToThread_helper ()
	QObjectPrivate (int version=QObjectPrivateVersion)
QObjectList	receiverList (const char *signal) const
QObjectList	senderList () const
void	setParent_helper (QObject *)
void	setThreadData_helper (QThreadData *currentData, QThreadData *targetData)
int	signalIndex (const char *signalName) const
	Returns the signal index used in the internal connectionLists vector. More...
virtual	~QObjectPrivate ()
Public Functions inherited from QObjectData
virtual	~QObjectData ()=0

Public Variables
QDeclarativeRefCount *	dataRef
QScriptDeclarativeClass::PersistentIdentifier *	identifiers
Binding *	m_bindings
bool	m_bindingsDisconnected
quint32 *	m_signalTable
const char *	programData
Subscription *	subscriptions
Public Variables inherited from QObjectPrivate
union {
QObject *   currentChildBeingDeleted
QAbstractDeclarativeData *   declarativeData
};
quint32	connectedSignals [2]
QObjectConnectionListVector *	connectionLists
Sender *	currentSender
QList< QPointer< QObject > >	eventFilters
ExtraData *	extraData
QString	objectName
Connection *	senders
QAtomicPointer< QtSharedPointer::ExternalRefCountData >	sharedRefcount
QThreadData *	threadData
void *	unused
Public Variables inherited from QObjectData
uint	blockSig: 1
QObjectList	children
uint	hasGuards: 1
uint	inEventHandler: 1
uint	inThreadChangeEvent: 1
uint	isWidget: 1
QMetaObject *	metaObject
uint	ownObjectName: 1
QObject *	parent
uint	pendTimer: 1
int	postedEvents
QObject *	q_ptr
uint	receiveChildEvents: 1
uint	sendChildEvents: 1
uint	unused: 22
uint	wasDeleted: 1

Static Public Variables
static int	methodCount = -1

Additional Inherited Members
Static Public Functions inherited from QObjectPrivate
static void	clearGuards (QObject *)
static QObjectPrivate *	get (QObject *o)
static void	resetCurrentSender (QObject *receiver, Sender *currentSender, Sender *previousSender)
static Sender *	setCurrentSender (QObject *receiver, Sender *sender)
static void	signalSignature (const QMetaMethod &signal, QVarLengthArray< char > *result)

Detailed Description

Definition at line 204 of file qdeclarativecompiledbindings.cpp.

Typedefs

Subscription

typedef QDeclarativeNotifierEndpoint QDeclarativeCompiledBindingsPrivate::Subscription

Definition at line 232 of file qdeclarativecompiledbindings.cpp.

Constructors and Destructors

QDeclarativeCompiledBindingsPrivate()

QDeclarativeCompiledBindingsPrivate::QDeclarativeCompiledBindingsPrivate

(

)

Definition at line 273 of file qdeclarativecompiledbindings.cpp.

    : subscriptions(0), identifiers(0), programData(0), dataRef(0), m_bindings(0), m_signalTable(0),
      m_bindingsDisconnected(false)
{
}

~QDeclarativeCompiledBindingsPrivate()

QDeclarativeCompiledBindingsPrivate::~QDeclarativeCompiledBindingsPrivate ( )

virtual

Definition at line 279 of file qdeclarativecompiledbindings.cpp.

{
    delete [] subscriptions; subscriptions = 0;
    delete [] identifiers; identifiers = 0;
    if (dataRef) { 
        dataRef->release(); 
        dataRef = 0; 
    }
}

Functions

disconnectAll()

void QDeclarativeCompiledBindingsPrivate::disconnectAll ( )

inline

Definition at line 741 of file qdeclarativecompiledbindings.cpp.

{
    // This gets called multiple times in QDeclarativeData::disconnectNotifiers(), avoid unneeded
    // work for all but the first call.
    if (m_bindingsDisconnected)
        return;

    // We disconnect all subscriptions, so we can call disconnect() unconditionally if there is at
    // least one connection
    Program *program = (Program *)programData;
    for (int subIndex = 0; subIndex < program->subscriptions; ++subIndex) {
        Subscription * const sub = (subscriptions + subIndex);
        if (sub->isConnected())
            sub->disconnect();
    }
    m_bindingsDisconnected = true;
}

disconnectOne()

void QDeclarativeCompiledBindingsPrivate::disconnectOne ( QDeclarativeCompiledBindingsPrivate::Binding *  bindingToDisconnect )

inline

Definition at line 759 of file qdeclarativecompiledbindings.cpp.

{
    // We iterate over the signal table to find all subscriptions for this binding. This is slowish,
    // but disconnectOne() is only called when overwriting a binding, which is quite rare.
    Program *program = (Program *)programData;
    for (int subIndex = 0; subIndex < program->subscriptions; ++subIndex) {
        Subscription * const sub = (subscriptions + subIndex);
        quint32 *reeval = m_signalTable + m_signalTable[subIndex];
        quint32 bindingCount = *reeval;
        ++reeval;
        for (quint32 bindingIndex = 0; bindingIndex < bindingCount; ++bindingIndex) {
            Binding * const binding = m_bindings + reeval[bindingIndex];
            if (binding == bindingToDisconnect)
                sub->deref();
        }
    }
}

findgeneric()

void QDeclarativeCompiledBindingsPrivate::findgeneric	(	Register *	output,
		int	subIdx,
		QDeclarativeContextData *	context,
		const QScriptDeclarativeClass::Identifier &	name,
		bool	isTerminal
	)

Definition at line 941 of file qdeclarativecompiledbindings.cpp.

{
    QDeclarativeEnginePrivate *enginePriv = QDeclarativeEnginePrivate::get(context->engine);

    while (context) {

        int contextPropertyIndex = context->propertyNames?context->propertyNames->value(name):-1;


        if (contextPropertyIndex != -1) {

            if (contextPropertyIndex < context->idValueCount) {
                output->setQObject(context->idValues[contextPropertyIndex]);
                output->settype(QMetaType::QObjectStar);

                if (subIdx != -1) 
                    subscribeId(context, contextPropertyIndex, subIdx);

            } else {
                QDeclarativeContextPrivate *cp = context->asQDeclarativeContextPrivate();
                const QVariant &value = cp->propertyValues.at(contextPropertyIndex);

                if (isTerminal) {
                    new (output->typeDataPtr()) QVariant(value);
                    output->settype(qMetaTypeId<QVariant>());
                } else {
                    bool ok;
                    output->setQObject(variantToQObject(value, &ok));
                    if (!ok) { output->setUndefined(); }
                    else { output->settype(QMetaType::QObjectStar); }
                    return;
                }

                if (subIdx != -1) 
                    subscribe(context->asQDeclarativeContext(), contextPropertyIndex + cp->notifyIndex, subIdx);


            }

            return;
        }

        if (QObject *root = context->contextObject) {

            if (findproperty(root, output, enginePriv, subIdx, name, isTerminal))
                return;

        }

        context = context->parent;
    }

    output->setUndefined();
}

findproperty() [1/2]

QDeclarativePropertyCache::Data* QDeclarativeCompiledBindingsPrivate::findproperty	(	QObject *	obj,
		const QScriptDeclarativeClass::Identifier &	name,
		QDeclarativeEnginePrivate *	enginePriv,
		QDeclarativePropertyCache::Data &	local
	)

findproperty() [2/2]

bool QDeclarativeCompiledBindingsPrivate::findproperty	(	QObject *	obj,
		Register *	output,
		QDeclarativeEnginePrivate *	enginePriv,
		int	subIdx,
		const QScriptDeclarativeClass::Identifier &	name,
		bool	isTerminal
	)

Definition at line 868 of file qdeclarativecompiledbindings.cpp.

{
    if (!obj) {
        output->setUndefined();
        return false;
    }

    QDeclarativePropertyCache::Data local;
    QDeclarativePropertyCache::Data *property = 
        QDeclarativePropertyCache::property(QDeclarativeEnginePrivate::get(enginePriv), obj, name, local);

    if (property) {
        if (subIdx != -1)
            subscribe(obj, property->notifyIndex, subIdx);

        if (property->flags & QDeclarativePropertyCache::Data::IsQObjectDerived) {
            void *args[] = { output->typeDataPtr(), 0 };
            QMetaObject::metacall(obj, QMetaObject::ReadProperty, property->coreIndex, args);
            output->settype(QMetaType::QObjectStar);
        } else if (property->propType == qMetaTypeId<QVariant>()) {
            QVariant v;
            void *args[] = { &v, 0 };
            QMetaObject::metacall(obj, QMetaObject::ReadProperty, property->coreIndex, args);

            if (isTerminal) {
                new (output->typeDataPtr()) QVariant(v);
                output->settype(qMetaTypeId<QVariant>());
            } else {
                bool ok;
                output->setQObject(variantToQObject(v, &ok));
                if (!ok) 
                    output->setUndefined();
                else
                    output->settype(QMetaType::QObjectStar);
            }

        } else {
            if (!isTerminal) {
                output->setUndefined();
            } else if (property->propType == QMetaType::QReal) {
                void *args[] = { output->typeDataPtr(), 0 };
                QMetaObject::metacall(obj, QMetaObject::ReadProperty, property->coreIndex, args);
                output->settype(QMetaType::QReal);
            } else if (property->propType == QMetaType::Int) {
                void *args[] = { output->typeDataPtr(), 0 };
                QMetaObject::metacall(obj, QMetaObject::ReadProperty, property->coreIndex, args);
                output->settype(QMetaType::Int);
            } else if (property->propType == QMetaType::Bool) {
                void *args[] = { output->typeDataPtr(), 0 };
                QMetaObject::metacall(obj, QMetaObject::ReadProperty, property->coreIndex, args);
                output->settype(QMetaType::Bool);
            } else if (property->propType == QMetaType::QString) {
                new (output->typeDataPtr()) QString();
                void *args[] = { output->typeDataPtr(), 0 };
                QMetaObject::metacall(obj, QMetaObject::ReadProperty, property->coreIndex, args);
                output->settype(QMetaType::QString);
            } else {
                new (output->typeDataPtr()) 
                    QVariant(obj->metaObject()->property(property->coreIndex).read(obj));
                output->settype(qMetaTypeId<QVariant>());
            }
        }

        return true;
    } else {
        output->setUndefined();
        return false;
    }
}

init()

void QDeclarativeCompiledBindingsPrivate::init

(

)

Definition at line 1000 of file qdeclarativecompiledbindings.cpp.

{
    Program *program = (Program *)programData;
    if (program->subscriptions)
        subscriptions = new QDeclarativeCompiledBindingsPrivate::Subscription[program->subscriptions];
    if (program->identifiers)
        identifiers = new QScriptDeclarativeClass::PersistentIdentifier[program->identifiers];

    m_signalTable = (quint32 *)(program->data() + program->signalTableOffset);
    m_bindings = new QDeclarativeCompiledBindingsPrivate::Binding[program->bindings];
}

run() [1/2]

void QDeclarativeCompiledBindingsPrivate::run	(	Binding *	binding,
		QDeclarativePropertyPrivate::WriteFlags	flags
	)

Definition at line 386 of file qdeclarativecompiledbindings.cpp.

{
    Q_Q(QDeclarativeCompiledBindings);

    if (!binding->enabled)
        return;

    QDeclarativeContextData *context = q->QDeclarativeAbstractExpression::context();
    if (!context || !context->isValid()) 
        return;

    if (binding->updating) {
        QString name;
        if (binding->property & 0xFFFF0000) {
            QDeclarativeEnginePrivate *ep = QDeclarativeEnginePrivate::get(context->engine);

            QDeclarativeValueType *vt = ep->valueTypes[(binding->property >> 16) & 0xFF];
            Q_ASSERT(vt);

            name = QLatin1String(binding->target->metaObject()->property(binding->property & 0xFFFF).name());
            name.append(QLatin1String("."));
            name.append(QLatin1String(vt->metaObject()->property(binding->property >> 24).name()));
        } else {
            name = QLatin1String(binding->target->metaObject()->property(binding->property).name());
        }
        qmlInfo(binding->target) << QCoreApplication::translate("QDeclarativeCompiledBindings", "Binding loop detected for property \"%1\"").arg(name);
        return;
    }

    binding->updating = true;
    if (binding->property & 0xFFFF0000) {
        QDeclarativeEnginePrivate *ep = QDeclarativeEnginePrivate::get(context->engine);

        QDeclarativeValueType *vt = ep->valueTypes[(binding->property >> 16) & 0xFF];
        Q_ASSERT(vt);
        vt->read(binding->target, binding->property & 0xFFFF);

        QObject *target = vt;
        run(binding->index, context, binding, binding->scope, target, flags);

        vt->write(binding->target, binding->property & 0xFFFF, flags);
    } else {
        run(binding->index, context, binding, binding->scope, binding->target, flags);
    }
    binding->updating = false;
}

run() [2/2]

void QDeclarativeCompiledBindingsPrivate::run	(	int	instr,
		QDeclarativeContextData *	context,
		QDeclarativeDelayedError *	error,
		QObject *	scope,
		QObject *	output,
		QDeclarativePropertyPrivate::WriteFlags	storeFlags
	)

Definition at line 1180 of file qdeclarativecompiledbindings.cpp.

{
    Q_Q(QDeclarativeCompiledBindings);

    error->removeError();

    Register registers[32];

    QDeclarativeEnginePrivate *engine = QDeclarativeEnginePrivate::get(context->engine);
    Program *program = (Program *)programData;
    const Instr *instr = program->instructions();
    instr += instrIndex;
    const char *data = program->data();

#ifdef QML_THREADED_INTERPRETER
    static void *decode_instr[] = {
        FOR_EACH_QML_INSTR(QML_INSTR_ADDR)
    };

    if (!program->compiled) {
        program->compiled = true;
        const Instr *inop = program->instructions();
        for (int i = 0; i < program->instructionCount; ++i) {
            Instr *op = (Instr *) inop++;
            op->common.code = decode_instr[op->common.type];
        }
    }

    goto *instr->common.code;
#else
    // return;

#ifdef COMPILEDBINDINGS_DEBUG
    qWarning().nospace() << "Begin binding run";
#endif

    while (instr) {
        switch (instr->common.type) {

#ifdef COMPILEDBINDINGS_DEBUG
        dumpInstruction(instr);
#endif

#endif

    QML_BEGIN_INSTR(Noop)
    QML_END_INSTR(Noop)

    QML_BEGIN_INSTR(BindingId)
    QML_END_INSTR(BindingId)

    QML_BEGIN_INSTR(SubscribeId)
        subscribeId(context, instr->subscribe.index, instr->subscribe.offset);
    QML_END_INSTR(SubscribeId)

    QML_BEGIN_INSTR(Subscribe)
    {
        QObject *o = 0;
        const Register &object = registers[instr->subscribe.reg];
        if (!object.isUndefined()) o = object.getQObject();
        subscribe(o, instr->subscribe.index, instr->subscribe.offset);
    }
    QML_END_INSTR(Subscribe)

    QML_BEGIN_INSTR(FetchAndSubscribe)
    {
        const Register &input = registers[instr->fetchAndSubscribe.objectReg];
        Register &output = registers[instr->fetchAndSubscribe.output];

        if (input.isUndefined()) {
            throwException(instr->fetchAndSubscribe.exceptionId, error, program, context);
            return;
        }

        QObject *object = input.getQObject();
        if (!object) {
            output.setUndefined();
        } else {
            int subIdx = instr->fetchAndSubscribe.subscription;
            QDeclarativeCompiledBindingsPrivate::Subscription *sub = 0;
            if (subIdx != -1) {
                sub = (subscriptions + subIdx);
                sub->target = q;
                sub->targetMethod = methodCount + subIdx; 
            }
            fastProperties()->accessor(instr->fetchAndSubscribe.function)(object, output.typeDataPtr(), sub);
        }
    }
    QML_END_INSTR(FetchAndSubscribe)

    QML_BEGIN_INSTR(LoadId)
        registers[instr->load.reg].setQObject(context->idValues[instr->load.index].data());
    QML_END_INSTR(LoadId)

    QML_BEGIN_INSTR(LoadScope)
        registers[instr->load.reg].setQObject(scope);
    QML_END_INSTR(LoadScope)

    QML_BEGIN_INSTR(LoadRoot)
        registers[instr->load.reg].setQObject(context->contextObject);
    QML_END_INSTR(LoadRoot)

    QML_BEGIN_INSTR(LoadAttached)
    {
        const Register &input = registers[instr->attached.reg];
        Register &output = registers[instr->attached.output];
        if (input.isUndefined()) {
            throwException(instr->attached.exceptionId, error, program, context);
            return;
        }

        QObject *object = registers[instr->attached.reg].getQObject();
        if (!object) {
            output.setUndefined();
        } else {
            QObject *attached = 
                qmlAttachedPropertiesObjectById(instr->attached.id, 
                                                registers[instr->attached.reg].getQObject(), 
                                                true);
            Q_ASSERT(attached);
            output.setQObject(attached);
        }
    }
    QML_END_INSTR(LoadAttached)

    QML_BEGIN_INSTR(ConvertIntToReal)
    {
        const Register &input = registers[instr->unaryop.src];
        Register &output = registers[instr->unaryop.output];
        if (input.isUndefined()) output.setUndefined();
        else output.setqreal(qreal(input.getint()));
    }
    QML_END_INSTR(ConvertIntToReal)

    QML_BEGIN_INSTR(ConvertRealToInt)
    {
        const Register &input = registers[instr->unaryop.src];
        Register &output = registers[instr->unaryop.output];
        if (input.isUndefined()) output.setUndefined();
        else output.setint(qRound(input.getqreal()));
    }
    QML_END_INSTR(ConvertRealToInt)

    QML_BEGIN_INSTR(Real)
        registers[instr->real_value.reg].setqreal(instr->real_value.value);
    QML_END_INSTR(Real)

    QML_BEGIN_INSTR(Int)
        registers[instr->int_value.reg].setint(instr->int_value.value);
    QML_END_INSTR(Int)
        
    QML_BEGIN_INSTR(Bool)
        registers[instr->bool_value.reg].setbool(instr->bool_value.value);
    QML_END_INSTR(Bool)

    QML_BEGIN_INSTR(String)
    {
        Register &output = registers[instr->string_value.reg];
        new (output.getstringptr()) 
            QString((QChar *)(data + instr->string_value.offset), instr->string_value.length);
        output.settype(QMetaType::QString);
    }
    QML_END_INSTR(String)

    QML_BEGIN_INSTR(AddReal)
    {
        const Register &lhs = registers[instr->binaryop.src1];
        const Register &rhs = registers[instr->binaryop.src2];
        Register &output = registers[instr->binaryop.output];
        if (lhs.isUndefined() || rhs.isUndefined()) output.setNaN();
        else output.setqreal(lhs.getqreal() + rhs.getqreal());
    }
    QML_END_INSTR(AddReal)

    QML_BEGIN_INSTR(AddInt)
    {
        const Register &lhs = registers[instr->binaryop.src1];
        const Register &rhs = registers[instr->binaryop.src2];
        Register &output = registers[instr->binaryop.output];
        if (lhs.isUndefined() || rhs.isUndefined()) output.setNaN();
        else output.setint(lhs.getint() + rhs.getint());
    }
    QML_END_INSTR(AddInt)
        
    QML_BEGIN_INSTR(AddString)
    {
        const Register &lhs = registers[instr->binaryop.src1];
        const Register &rhs = registers[instr->binaryop.src2];
        Register &output = registers[instr->binaryop.output];
        if (lhs.isUndefined() && rhs.isUndefined()) { output.setNaN(); }
        else {
            if (lhs.isUndefined())
                new (output.getstringptr())
                    QString(QLatin1String("undefined") + *registers[instr->binaryop.src2].getstringptr());
            else if (rhs.isUndefined())
                new (output.getstringptr())
                    QString(*registers[instr->binaryop.src1].getstringptr() + QLatin1String("undefined"));
            else
                new (output.getstringptr()) 
                    QString(*registers[instr->binaryop.src1].getstringptr() + 
                            *registers[instr->binaryop.src2].getstringptr());
            output.settype(QMetaType::QString);
        }
    }
    QML_END_INSTR(AddString)

    QML_BEGIN_INSTR(MinusReal)
    {
        const Register &lhs = registers[instr->binaryop.src1];
        const Register &rhs = registers[instr->binaryop.src2];
        Register &output = registers[instr->binaryop.output];
        if (lhs.isUndefined() || rhs.isUndefined()) output.setNaN();
        else output.setqreal(lhs.getqreal() - rhs.getqreal());
    }
    QML_END_INSTR(MinusReal)

    QML_BEGIN_INSTR(MinusInt)
    {
        const Register &lhs = registers[instr->binaryop.src1];
        const Register &rhs = registers[instr->binaryop.src2];
        Register &output = registers[instr->binaryop.output];
        if (lhs.isUndefined() || rhs.isUndefined()) output.setNaN();
        else output.setint(lhs.getint() - rhs.getint());
    }
    QML_END_INSTR(MinusInt)

    QML_BEGIN_INSTR(CompareReal)
    {
        const Register &lhs = registers[instr->binaryop.src1];
        const Register &rhs = registers[instr->binaryop.src2];
        Register &output = registers[instr->binaryop.output];
        if (lhs.isUndefined() || rhs.isUndefined()) output.setbool(lhs.isUndefined() == rhs.isUndefined());
        else output.setbool(lhs.getqreal() == rhs.getqreal());
    }
    QML_END_INSTR(CompareReal)

    QML_BEGIN_INSTR(CompareString)
    {
        const Register &lhs = registers[instr->binaryop.src1];
        const Register &rhs = registers[instr->binaryop.src2];
        Register &output = registers[instr->binaryop.output];
        if (lhs.isUndefined() || rhs.isUndefined()) output.setbool(lhs.isUndefined() == rhs.isUndefined());
        else output.setbool(*lhs.getstringptr() == *rhs.getstringptr());
    }
    QML_END_INSTR(CompareString)

    QML_BEGIN_INSTR(NotCompareReal)
    {
        const Register &lhs = registers[instr->binaryop.src1];
        const Register &rhs = registers[instr->binaryop.src2];
        Register &output = registers[instr->binaryop.output];
        if (lhs.isUndefined() || rhs.isUndefined()) output.setbool(lhs.isUndefined() != rhs.isUndefined());
        else output.setbool(lhs.getqreal() != rhs.getqreal());
    }
    QML_END_INSTR(NotCompareReal)

    QML_BEGIN_INSTR(NotCompareString)
    {
        const Register &lhs = registers[instr->binaryop.src1];
        const Register &rhs = registers[instr->binaryop.src2];
        Register &output = registers[instr->binaryop.output];
        if (lhs.isUndefined() || rhs.isUndefined()) output.setbool(lhs.isUndefined() != rhs.isUndefined());
        else output.setbool(*lhs.getstringptr() != *rhs.getstringptr());
    }
    QML_END_INSTR(NotCompareString)

    QML_BEGIN_INSTR(GreaterThanReal)
    {
        const Register &lhs = registers[instr->binaryop.src1];
        const Register &rhs = registers[instr->binaryop.src2];
        Register &output = registers[instr->binaryop.output];
        if (lhs.isUndefined() || rhs.isUndefined()) output.setbool(false);
        else output.setbool(lhs.getqreal() > rhs.getqreal());
    }
    QML_END_INSTR(GreaterThanReal)

    QML_BEGIN_INSTR(MaxReal)
    {
        const Register &lhs = registers[instr->binaryop.src1];
        const Register &rhs = registers[instr->binaryop.src2];
        Register &output = registers[instr->binaryop.output];
        if (lhs.isUndefined() || rhs.isUndefined()) output.setNaN();
        else output.setqreal(qMax(lhs.getqreal(), rhs.getqreal()));
    }
    QML_END_INSTR(MaxReal)

    QML_BEGIN_INSTR(MinReal)
    {
        const Register &lhs = registers[instr->binaryop.src1];
        const Register &rhs = registers[instr->binaryop.src2];
        Register &output = registers[instr->binaryop.output];
        if (lhs.isUndefined() || rhs.isUndefined()) output.setNaN();
        else output.setqreal(qMin(lhs.getqreal(), rhs.getqreal()));
    }
    QML_END_INSTR(MinReal)

    QML_BEGIN_INSTR(NewString)
    {
        Register &output = registers[instr->construct.reg];
        new (output.getstringptr()) QString;
        output.settype(QMetaType::QString);
    }
    QML_END_INSTR(NewString)

    QML_BEGIN_INSTR(NewUrl)
    {
        Register &output = registers[instr->construct.reg];
        new (output.geturlptr()) QUrl;
        output.settype(QMetaType::QUrl);
    }
    QML_END_INSTR(NewUrl)

    QML_BEGIN_INSTR(CleanupString)
        registers[instr->cleanup.reg].getstringptr()->~QString();
#ifdef REGISTER_CLEANUP_DEBUG
        registers[instr->cleanup.reg].setUndefined();
#endif
    QML_END_INSTR(CleanupString)

    QML_BEGIN_INSTR(CleanupUrl)
        registers[instr->cleanup.reg].geturlptr()->~QUrl();
#ifdef REGISTER_CLEANUP_DEBUG
        registers[instr->cleanup.reg].setUndefined();
#endif
    QML_END_INSTR(CleanupUrl)

    QML_BEGIN_INSTR(Fetch)
    {
        const Register &input = registers[instr->fetch.objectReg];
        Register &output = registers[instr->fetch.output];

        if (input.isUndefined()) {
            throwException(instr->fetch.exceptionId, error, program, context);
            return;
        }

        QObject *object = input.getQObject();
        if (!object) {
            output.setUndefined();
        } else {
            void *argv[] = { output.typeDataPtr(), 0 };
            QMetaObject::metacall(object, QMetaObject::ReadProperty, instr->fetch.index, argv);
        }
    }
    QML_END_INSTR(Fetch)

    QML_BEGIN_INSTR(Store)
    {
        Register &data = registers[instr->store.reg];
        if (data.isUndefined()) {
            throwException(instr->store.exceptionId, error, program, context,
                           QLatin1String("Unable to assign undefined value"));
            return;
        }

        int status = -1;
        void *argv[] = { data.typeDataPtr(), 0, &status, &storeFlags };
        QMetaObject::metacall(output, QMetaObject::WriteProperty, 
                              instr->store.index, argv);
    }
    QML_END_INSTR(Store)

    QML_BEGIN_INSTR(Copy)
        registers[instr->copy.reg] = registers[instr->copy.src];
    QML_END_INSTR(Copy)

    QML_BEGIN_INSTR(Skip)
        if (instr->skip.reg == -1 || !registers[instr->skip.reg].getbool()) 
            instr += instr->skip.count;
    QML_END_INSTR(Skip)

    QML_BEGIN_INSTR(Done)
        return;
    QML_END_INSTR(Done)

    QML_BEGIN_INSTR(InitString)
        if (!identifiers[instr->initstring.offset].identifier) {
            quint32 len = *(quint32 *)(data + instr->initstring.dataIdx);
            QChar *strdata = (QChar *)(data + instr->initstring.dataIdx + sizeof(quint32)); 

            QString str = QString::fromRawData(strdata, len);

            identifiers[instr->initstring.offset] = engine->objectClass->createPersistentIdentifier(str);
        }
    QML_END_INSTR(InitString)

    QML_BEGIN_INSTR(FindGenericTerminal)
        // We start the search in the parent context, as we know that the 
        // name is not present in the current context or it would have been
        // found during the static compile
        findgeneric(registers + instr->find.reg, instr->find.subscribeIndex, 
                    context->parent,
                    identifiers[instr->find.name].identifier, 
                    instr->common.type == Instr::FindGenericTerminal);
    QML_END_INSTR(FindGenericTerminal)

    QML_BEGIN_INSTR(FindGeneric)
        // We start the search in the parent context, as we know that the
        // name is not present in the current context or it would have been
        // found during the static compile
        findgeneric(registers + instr->find.reg, instr->find.subscribeIndex,
                    context->parent,
                    identifiers[instr->find.name].identifier,
                    instr->common.type == Instr::FindGenericTerminal);
    QML_END_INSTR(FindGeneric)

    QML_BEGIN_INSTR(FindPropertyTerminal)
    {
        const Register &object = registers[instr->find.src];
        if (object.isUndefined()) {
            throwException(instr->find.exceptionId, error, program, context);
            return;
        }

        findproperty(object.getQObject(), registers + instr->find.reg, 
                     QDeclarativeEnginePrivate::get(context->engine), 
                     instr->find.subscribeIndex, identifiers[instr->find.name].identifier, 
                     instr->common.type == Instr::FindPropertyTerminal);
    }
    QML_END_INSTR(FindPropertyTerminal)

    QML_BEGIN_INSTR(FindProperty)
    {
        const Register &object = registers[instr->find.src];
        if (object.isUndefined()) {
            throwException(instr->find.exceptionId, error, program, context);
            return;
        }

        findproperty(object.getQObject(), registers + instr->find.reg,
                     QDeclarativeEnginePrivate::get(context->engine),
                     instr->find.subscribeIndex, identifiers[instr->find.name].identifier,
                     instr->common.type == Instr::FindPropertyTerminal);
    }
    QML_END_INSTR(FindProperty)

    QML_BEGIN_INSTR(CleanupGeneric)
    {
        int type = registers[instr->cleanup.reg].gettype();
        if (type == qMetaTypeId<QVariant>()) {
            registers[instr->cleanup.reg].getvariantptr()->~QVariant();
#ifdef REGISTER_CLEANUP_DEBUG
        registers[instr->cleanup.reg].setUndefined();
#endif
        } else if (type == QMetaType::QString) {
            registers[instr->cleanup.reg].getstringptr()->~QString();
#ifdef REGISTER_CLEANUP_DEBUG
        registers[instr->cleanup.reg].setUndefined();
#endif
        } else if (type == QMetaType::QUrl) {
            registers[instr->cleanup.reg].geturlptr()->~QUrl();
#ifdef REGISTER_CLEANUP_DEBUG
        registers[instr->cleanup.reg].setUndefined();
#endif
        }
    }
    QML_END_INSTR(CleanupGeneric)

    QML_BEGIN_INSTR(ConvertGenericToReal)
    {
        Register &output = registers[instr->unaryop.output];
        Register &input = registers[instr->unaryop.src];
        bool ok = true;
        output.setqreal(toReal(&input, input.gettype(), &ok));
        if (!ok) output.setUndefined();
    }
    QML_END_INSTR(ConvertGenericToReal)

    QML_BEGIN_INSTR(ConvertGenericToBool)
    {
        Register &output = registers[instr->unaryop.output];
        Register &input = registers[instr->unaryop.src];
        bool ok = true;
        output.setbool(toBool(&input, input.gettype(), &ok));
        if (!ok) output.setUndefined();
    }
    QML_END_INSTR(ConvertGenericToBool)

    QML_BEGIN_INSTR(ConvertGenericToString)
    {
        Register &output = registers[instr->unaryop.output];
        Register &input = registers[instr->unaryop.src];
        bool ok = true;
        QString str = toString(&input, input.gettype(), &ok);
        if (ok) { new (output.getstringptr()) QString(str); output.settype(QMetaType::QString); }
        else { output.setUndefined(); }
    }
    QML_END_INSTR(ConvertGenericToString)

    QML_BEGIN_INSTR(ConvertGenericToUrl)
    {
        Register &output = registers[instr->unaryop.output];
        Register &input = registers[instr->unaryop.src];
        bool ok = true;
        QUrl url = toUrl(&input, input.gettype(), context, &ok);
        if (ok) { new (output.geturlptr()) QUrl(url); output.settype(QMetaType::QUrl); }
        else { output.setUndefined(); }
    }
    QML_END_INSTR(ConvertGenericToUrl)

#ifdef QML_THREADED_INTERPRETER
    // nothing to do
#else
    default:
        qFatal("EEK");
        break;
    } // switch

    ++instr;
    } // while
#endif
}

subscribe()

void QDeclarativeCompiledBindingsPrivate::subscribe ( QObject *  o, int  notifyIndex, int  subIndex  )

inline

Definition at line 728 of file qdeclarativecompiledbindings.cpp.

{
    Q_Q(QDeclarativeCompiledBindings);

    QDeclarativeCompiledBindingsPrivate::Subscription *sub = (subscriptions + subIndex);
    sub->target = q;
    sub->targetMethod = methodCount + subIndex; 
    if (o)
        sub->connect(o, notifyIndex);
    else
        sub->disconnect();
}

subscribeId()

void QDeclarativeCompiledBindingsPrivate::subscribeId ( QDeclarativeContextData *  p, int  idIndex, int  subIndex  )

inline

Definition at line 714 of file qdeclarativecompiledbindings.cpp.

{
    Q_Q(QDeclarativeCompiledBindings);

    QDeclarativeCompiledBindingsPrivate::Subscription *sub = (subscriptions + subIndex);
    sub->disconnect();

    if (p->idValues[idIndex]) {
        sub->target = q;
        sub->targetMethod = methodCount + subIndex;
        sub->connect(&p->idValues[idIndex].bindings);
    }
}

Properties

dataRef

QDeclarativeRefCount* QDeclarativeCompiledBindingsPrivate::dataRef

Definition at line 239 of file qdeclarativecompiledbindings.cpp.

Referenced by ~QDeclarativeCompiledBindingsPrivate().

identifiers

QScriptDeclarativeClass::PersistentIdentifier* QDeclarativeCompiledBindingsPrivate::identifiers

Definition at line 234 of file qdeclarativecompiledbindings.cpp.

Referenced by ~QDeclarativeCompiledBindingsPrivate().

m_bindings

Binding* QDeclarativeCompiledBindingsPrivate::m_bindings

Definition at line 240 of file qdeclarativecompiledbindings.cpp.

m_bindingsDisconnected

bool QDeclarativeCompiledBindingsPrivate::m_bindingsDisconnected

Definition at line 242 of file qdeclarativecompiledbindings.cpp.

m_signalTable

quint32* QDeclarativeCompiledBindingsPrivate::m_signalTable

Definition at line 241 of file qdeclarativecompiledbindings.cpp.

methodCount

int QDeclarativeCompiledBindingsPrivate::methodCount = -1

static

Definition at line 244 of file qdeclarativecompiledbindings.cpp.

Referenced by ~QDeclarativeCompiledBindingsPrivate().

programData

const char* QDeclarativeCompiledBindingsPrivate::programData

Definition at line 238 of file qdeclarativecompiledbindings.cpp.

subscriptions

Subscription* QDeclarativeCompiledBindingsPrivate::subscriptions

Definition at line 233 of file qdeclarativecompiledbindings.cpp.

Referenced by ~QDeclarativeCompiledBindingsPrivate().

---

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

• /src/declarative/qml/qdeclarativecompiledbindings.cpp