/*!
This method provides more advanced control over component instance creation.
In general, programmers should use QDeclarativeComponent::create() to create a
component.
Create an object instance from this component. Returns 0 if creation
failed. \a context specifies the context within which to create the object
instance.
When QDeclarativeComponent constructs an instance, it occurs in three steps:
\list 1
\li The object hierarchy is created, and constant values are assigned.
\li Property bindings are evaluated for the first time.
\li If applicable, QDeclarativeParserStatus::componentComplete() is called on objects.
\endlist
QDeclarativeComponent::beginCreate() differs from QDeclarativeComponent::create() in that it
only performs step 1. QDeclarativeComponent::completeCreate() must be called to
complete steps 2 and 3.
This breaking point is sometimes useful when using attached properties to
communicate information to an instantiated component, as it allows their
initial values to be configured before property bindings take effect.
*/
QObject *QDeclarativeComponent::beginCreate(QDeclarativeContext *context)
{
Q_D(QDeclarativeComponent);
QObject *rv = d->beginCreate(context?QDeclarativeContextData::get(context):0, QBitField());
if (rv) {
QDeclarativeData *ddata = QDeclarativeData::get(rv);
Q_ASSERT(ddata);
ddata->indestructible = true;
}
return rv;
}
void QDeclarativeVME::runDeferred(QObject *object)
{
QDeclarativeData *data = QDeclarativeData::get(object);
if (!data || !data->context || !data->deferredComponent)
return;
QDeclarativeContextData *ctxt = data->context;
QDeclarativeCompiledData *comp = data->deferredComponent;
int start = data->deferredIdx + 1;
int count = data->deferredComponent->bytecode.at(data->deferredIdx).defer.deferCount;
QDeclarativeVMEObjectStack stack;
stack.push(object);
run(stack, ctxt, comp, start, count, QBitField());
}
QObject *QDeclarativeVME::run(QDeclarativeVMEObjectStack &stack,
QDeclarativeContextData *ctxt,
QDeclarativeCompiledData *comp,
int start, int count,
const QBitField &bindingSkipList)
{
Q_ASSERT(comp);
Q_ASSERT(ctxt);
const QList<QDeclarativeCompiledData::TypeReference> &types = comp->types;
const QList<QString> &primitives = comp->primitives;
const QList<QByteArray> &datas = comp->datas;
const QList<QDeclarativeCompiledData::CustomTypeData> &customTypeData = comp->customTypeData;
const QList<int> &intData = comp->intData;
const QList<float> &floatData = comp->floatData;
const QList<QDeclarativePropertyCache *> &propertyCaches = comp->propertyCaches;
const QList<QDeclarativeParser::Object::ScriptBlock> &scripts = comp->scripts;
const QList<QUrl> &urls = comp->urls;
QDeclarativeEnginePrivate::SimpleList<QDeclarativeAbstractBinding> bindValues;
QDeclarativeEnginePrivate::SimpleList<QDeclarativeParserStatus> parserStatus;
QDeclarativeVMEStack<ListInstance> qliststack;
vmeErrors.clear();
QDeclarativeEnginePrivate *ep = QDeclarativeEnginePrivate::get(ctxt->engine);
int status = -1; //for dbus
QDeclarativePropertyPrivate::WriteFlags flags = QDeclarativePropertyPrivate::BypassInterceptor |
QDeclarativePropertyPrivate::RemoveBindingOnAliasWrite;
for (int ii = start; !isError() && ii < (start + count); ++ii) {
const QDeclarativeInstruction &instr = comp->bytecode.at(ii);
switch(instr.type) {
case QDeclarativeInstruction::Init:
{
if (instr.init.bindingsSize)
bindValues = QDeclarativeEnginePrivate::SimpleList<QDeclarativeAbstractBinding>(instr.init.bindingsSize);
if (instr.init.parserStatusSize)
parserStatus = QDeclarativeEnginePrivate::SimpleList<QDeclarativeParserStatus>(instr.init.parserStatusSize);
if (instr.init.contextCache != -1)
ctxt->setIdPropertyData(comp->contextCaches.at(instr.init.contextCache));
if (instr.init.compiledBinding != -1)
ctxt->optimizedBindings = new QDeclarativeCompiledBindings(datas.at(instr.init.compiledBinding).constData(), ctxt, comp);
}
break;
case QDeclarativeInstruction::CreateObject:
{
QBitField bindings;
if (instr.create.bindingBits != -1) {
const QByteArray &bits = datas.at(instr.create.bindingBits);
bindings = QBitField((const quint32*)bits.constData(),
bits.size() * 8);
}
if (stack.isEmpty())
bindings = bindings.united(bindingSkipList);
QObject *o =
types.at(instr.create.type).createInstance(ctxt, bindings, &vmeErrors);
if (!o) {
VME_EXCEPTION(QCoreApplication::translate("QDeclarativeVME","Unable to create object of type %1").arg(QString::fromLatin1(types.at(instr.create.type).className)));
}
QDeclarativeData *ddata = QDeclarativeData::get(o);
Q_ASSERT(ddata);
if (stack.isEmpty()) {
if (ddata->context) {
Q_ASSERT(ddata->context != ctxt);
Q_ASSERT(ddata->outerContext);
Q_ASSERT(ddata->outerContext != ctxt);
QDeclarativeContextData *c = ddata->context;
while (c->linkedContext) c = c->linkedContext;
c->linkedContext = ctxt;
} else {
ctxt->addObject(o);
}
ddata->ownContext = true;
} else if (!ddata->context) {
ctxt->addObject(o);
}
ddata->setImplicitDestructible();
ddata->outerContext = ctxt;
ddata->lineNumber = instr.line;
ddata->columnNumber = instr.create.column;
if (instr.create.data != -1) {
QDeclarativeCustomParser *customParser =
types.at(instr.create.type).type->customParser();
customParser->setCustomData(o, datas.at(instr.create.data));
}
if (!stack.isEmpty()) {
QObject *parent = stack.top();
if (o->isWidgetType()) {
QWidget *widget = static_cast<QWidget*>(o);
if (parent->isWidgetType()) {
QWidget *parentWidget = static_cast<QWidget*>(parent);
widget->setParent(parentWidget);
} else {
// TODO: parent might be a layout
}
} else {
QDeclarative_setParent_noEvent(o, parent);
}
}
stack.push(o);
}
break;
case QDeclarativeInstruction::CreateSimpleObject:
{
QObject *o = (QObject *)operator new(instr.createSimple.typeSize +
sizeof(QDeclarativeData));
::memset(static_cast<void *>(o), 0, instr.createSimple.typeSize + sizeof(QDeclarativeData));
instr.createSimple.create(o);
QDeclarativeData *ddata = (QDeclarativeData *)(((const char *)o) + instr.createSimple.typeSize);
const QDeclarativeCompiledData::TypeReference &ref = types.at(instr.createSimple.type);
if (!ddata->propertyCache && ref.typePropertyCache) {
ddata->propertyCache = ref.typePropertyCache;
ddata->propertyCache->addref();
}
ddata->lineNumber = instr.line;
ddata->columnNumber = instr.createSimple.column;
QObjectPrivate::get(o)->declarativeData = ddata;
ddata->context = ddata->outerContext = ctxt;
ddata->nextContextObject = ctxt->contextObjects;
if (ddata->nextContextObject)
ddata->nextContextObject->prevContextObject = &ddata->nextContextObject;
ddata->prevContextObject = &ctxt->contextObjects;
ctxt->contextObjects = ddata;
QObject *parent = stack.top();
QDeclarative_setParent_noEvent(o, parent);
stack.push(o);
}
break;
case QDeclarativeInstruction::SetId:
{
QObject *target = stack.top();
ctxt->setIdProperty(instr.setId.index, target);
}
break;
case QDeclarativeInstruction::SetDefault:
{
ctxt->contextObject = stack.top();
}
break;
case QDeclarativeInstruction::CreateComponent:
{
QDeclarativeComponent *qcomp =
new QDeclarativeComponent(ctxt->engine, comp, ii + 1, instr.createComponent.count,
stack.isEmpty() ? 0 : stack.top());
QDeclarativeData *ddata = QDeclarativeData::get(qcomp, true);
Q_ASSERT(ddata);
ctxt->addObject(qcomp);
if (stack.isEmpty())
ddata->ownContext = true;
ddata->setImplicitDestructible();
ddata->outerContext = ctxt;
ddata->lineNumber = instr.line;
ddata->columnNumber = instr.create.column;
QDeclarativeComponentPrivate::get(qcomp)->creationContext = ctxt;
stack.push(qcomp);
ii += instr.createComponent.count;
}
break;
case QDeclarativeInstruction::StoreMetaObject:
{
QObject *target = stack.top();
QMetaObject mo;
const QByteArray &metadata = datas.at(instr.storeMeta.data);
QMetaObjectBuilder::fromRelocatableData(&mo, 0, metadata);
const QDeclarativeVMEMetaData *data =
(const QDeclarativeVMEMetaData *)datas.at(instr.storeMeta.aliasData).constData();
(void)new QDeclarativeVMEMetaObject(target, &mo, data, comp);
if (instr.storeMeta.propertyCache != -1) {
QDeclarativeData *ddata = QDeclarativeData::get(target, true);
if (ddata->propertyCache) ddata->propertyCache->release();
ddata->propertyCache = propertyCaches.at(instr.storeMeta.propertyCache);
ddata->propertyCache->addref();
}
}
break;
case QDeclarativeInstruction::StoreVariant:
{
QObject *target = stack.top();
CLEAN_PROPERTY(target, instr.storeString.propertyIndex);
// XXX - can be more efficient
QVariant v = QDeclarativeStringConverters::variantFromString(primitives.at(instr.storeString.value));
void *a[] = { &v, 0, &status, &flags };
QMetaObject::metacall(target, QMetaObject::WriteProperty,
instr.storeString.propertyIndex, a);
}
break;
case QDeclarativeInstruction::StoreVariantInteger:
{
QObject *target = stack.top();
CLEAN_PROPERTY(target, instr.storeString.propertyIndex);
QVariant v(instr.storeInteger.value);
void *a[] = { &v, 0, &status, &flags };
QMetaObject::metacall(target, QMetaObject::WriteProperty,
instr.storeString.propertyIndex, a);
}
break;
case QDeclarativeInstruction::StoreVariantDouble:
{
QObject *target = stack.top();
CLEAN_PROPERTY(target, instr.storeString.propertyIndex);
QVariant v(instr.storeDouble.value);
void *a[] = { &v, 0, &status, &flags };
QMetaObject::metacall(target, QMetaObject::WriteProperty,
instr.storeString.propertyIndex, a);
}
break;
case QDeclarativeInstruction::StoreVariantBool:
{
QObject *target = stack.top();
CLEAN_PROPERTY(target, instr.storeString.propertyIndex);
QVariant v(instr.storeBool.value);
void *a[] = { &v, 0, &status, &flags };
QMetaObject::metacall(target, QMetaObject::WriteProperty,
instr.storeString.propertyIndex, a);
}
break;
case QDeclarativeInstruction::StoreString:
{
QObject *target = stack.top();
CLEAN_PROPERTY(target, instr.storeString.propertyIndex);
void *a[] = { (void *)&primitives.at(instr.storeString.value), 0, &status, &flags };
QMetaObject::metacall(target, QMetaObject::WriteProperty,
instr.storeString.propertyIndex, a);
}
break;
case QDeclarativeInstruction::StoreUrl:
{
QObject *target = stack.top();
CLEAN_PROPERTY(target, instr.storeUrl.propertyIndex);
void *a[] = { (void *)&urls.at(instr.storeUrl.value), 0, &status, &flags };
QMetaObject::metacall(target, QMetaObject::WriteProperty,
instr.storeUrl.propertyIndex, a);
}
break;
case QDeclarativeInstruction::StoreFloat:
{
QObject *target = stack.top();
CLEAN_PROPERTY(target, instr.storeFloat.propertyIndex);
float f = instr.storeFloat.value;
void *a[] = { &f, 0, &status, &flags };
QMetaObject::metacall(target, QMetaObject::WriteProperty,
instr.storeFloat.propertyIndex, a);
}
break;
case QDeclarativeInstruction::StoreDouble:
{
QObject *target = stack.top();
CLEAN_PROPERTY(target, instr.storeDouble.propertyIndex);
double d = instr.storeDouble.value;
void *a[] = { &d, 0, &status, &flags };
QMetaObject::metacall(target, QMetaObject::WriteProperty,
instr.storeDouble.propertyIndex, a);
}
break;
case QDeclarativeInstruction::StoreBool:
{
QObject *target = stack.top();
CLEAN_PROPERTY(target, instr.storeBool.propertyIndex);
void *a[] = { (void *)&instr.storeBool.value, 0, &status, &flags };
QMetaObject::metacall(target, QMetaObject::WriteProperty,
instr.storeBool.propertyIndex, a);
}
break;
case QDeclarativeInstruction::StoreInteger:
{
QObject *target = stack.top();
CLEAN_PROPERTY(target, instr.storeInteger.propertyIndex);
void *a[] = { (void *)&instr.storeInteger.value, 0, &status, &flags };
QMetaObject::metacall(target, QMetaObject::WriteProperty,
instr.storeInteger.propertyIndex, a);
}
break;
case QDeclarativeInstruction::StoreColor:
{
QObject *target = stack.top();
CLEAN_PROPERTY(target, instr.storeColor.propertyIndex);
QColor c = QColor::fromRgba(instr.storeColor.value);
void *a[] = { &c, 0, &status, &flags };
QMetaObject::metacall(target, QMetaObject::WriteProperty,
instr.storeColor.propertyIndex, a);
}
break;
case QDeclarativeInstruction::StoreDate:
{
QObject *target = stack.top();
CLEAN_PROPERTY(target, instr.storeDate.propertyIndex);
QDate d = QDate::fromJulianDay(instr.storeDate.value);
void *a[] = { &d, 0, &status, &flags };
QMetaObject::metacall(target, QMetaObject::WriteProperty,
instr.storeDate.propertyIndex, a);
}
break;
case QDeclarativeInstruction::StoreTime:
{
QObject *target = stack.top();
CLEAN_PROPERTY(target, instr.storeTime.propertyIndex);
QTime t;
t.setHMS(intData.at(instr.storeTime.valueIndex),
intData.at(instr.storeTime.valueIndex+1),
intData.at(instr.storeTime.valueIndex+2),
intData.at(instr.storeTime.valueIndex+3));
void *a[] = { &t, 0, &status, &flags };
QMetaObject::metacall(target, QMetaObject::WriteProperty,
instr.storeTime.propertyIndex, a);
}
break;
case QDeclarativeInstruction::StoreDateTime:
{
QObject *target = stack.top();
CLEAN_PROPERTY(target, instr.storeDateTime.propertyIndex);
QTime t;
t.setHMS(intData.at(instr.storeDateTime.valueIndex+1),
intData.at(instr.storeDateTime.valueIndex+2),
intData.at(instr.storeDateTime.valueIndex+3),
intData.at(instr.storeDateTime.valueIndex+4));
QDateTime dt(QDate::fromJulianDay(intData.at(instr.storeDateTime.valueIndex)), t);
void *a[] = { &dt, 0, &status, &flags };
QMetaObject::metacall(target, QMetaObject::WriteProperty,
instr.storeDateTime.propertyIndex, a);
}
break;
case QDeclarativeInstruction::StorePoint:
{
QObject *target = stack.top();
CLEAN_PROPERTY(target, instr.storeRealPair.propertyIndex);
QPoint p = QPointF(floatData.at(instr.storeRealPair.valueIndex),
floatData.at(instr.storeRealPair.valueIndex+1)).toPoint();
void *a[] = { &p, 0, &status, &flags };
QMetaObject::metacall(target, QMetaObject::WriteProperty,
instr.storeRealPair.propertyIndex, a);
}
break;
case QDeclarativeInstruction::StorePointF:
{
QObject *target = stack.top();
CLEAN_PROPERTY(target, instr.storeRealPair.propertyIndex);
QPointF p(floatData.at(instr.storeRealPair.valueIndex),
floatData.at(instr.storeRealPair.valueIndex+1));
void *a[] = { &p, 0, &status, &flags };
QMetaObject::metacall(target, QMetaObject::WriteProperty,
instr.storeRealPair.propertyIndex, a);
}
break;
case QDeclarativeInstruction::StoreSize:
{
QObject *target = stack.top();
CLEAN_PROPERTY(target, instr.storeRealPair.propertyIndex);
QSize p = QSizeF(floatData.at(instr.storeRealPair.valueIndex),
floatData.at(instr.storeRealPair.valueIndex+1)).toSize();
void *a[] = { &p, 0, &status, &flags };
QMetaObject::metacall(target, QMetaObject::WriteProperty,
instr.storeRealPair.propertyIndex, a);
}
break;
case QDeclarativeInstruction::StoreSizeF:
{
QObject *target = stack.top();
CLEAN_PROPERTY(target, instr.storeRealPair.propertyIndex);
QSizeF s(floatData.at(instr.storeRealPair.valueIndex),
floatData.at(instr.storeRealPair.valueIndex+1));
void *a[] = { &s, 0, &status, &flags };
QMetaObject::metacall(target, QMetaObject::WriteProperty,
instr.storeRealPair.propertyIndex, a);
}
break;
case QDeclarativeInstruction::StoreRect:
{
QObject *target = stack.top();
CLEAN_PROPERTY(target, instr.storeRect.propertyIndex);
QRect r = QRectF(floatData.at(instr.storeRect.valueIndex),
floatData.at(instr.storeRect.valueIndex+1),
floatData.at(instr.storeRect.valueIndex+2),
floatData.at(instr.storeRect.valueIndex+3)).toRect();
void *a[] = { &r, 0, &status, &flags };
QMetaObject::metacall(target, QMetaObject::WriteProperty,
instr.storeRect.propertyIndex, a);
}
break;
case QDeclarativeInstruction::StoreRectF:
{
QObject *target = stack.top();
CLEAN_PROPERTY(target, instr.storeRect.propertyIndex);
QRectF r(floatData.at(instr.storeRect.valueIndex),
floatData.at(instr.storeRect.valueIndex+1),
floatData.at(instr.storeRect.valueIndex+2),
floatData.at(instr.storeRect.valueIndex+3));
void *a[] = { &r, 0, &status, &flags };
QMetaObject::metacall(target, QMetaObject::WriteProperty,
instr.storeRect.propertyIndex, a);
}
break;
case QDeclarativeInstruction::StoreVector3D:
{
QObject *target = stack.top();
CLEAN_PROPERTY(target, instr.storeVector3D.propertyIndex);
QVector3D p(floatData.at(instr.storeVector3D.valueIndex),
floatData.at(instr.storeVector3D.valueIndex+1),
floatData.at(instr.storeVector3D.valueIndex+2));
void *a[] = { &p, 0, &status, &flags };
QMetaObject::metacall(target, QMetaObject::WriteProperty,
instr.storeVector3D.propertyIndex, a);
}
break;
case QDeclarativeInstruction::StoreObject:
{
QObject *assignObj = stack.pop();
QObject *target = stack.top();
CLEAN_PROPERTY(target, instr.storeObject.propertyIndex);
void *a[] = { (void *)&assignObj, 0, &status, &flags };
QMetaObject::metacall(target, QMetaObject::WriteProperty,
instr.storeObject.propertyIndex, a);
}
break;
case QDeclarativeInstruction::AssignCustomType:
{
QObject *target = stack.top();
CLEAN_PROPERTY(target, instr.assignCustomType.propertyIndex);
QDeclarativeCompiledData::CustomTypeData data = customTypeData.at(instr.assignCustomType.valueIndex);
const QString &primitive = primitives.at(data.index);
QDeclarativeMetaType::StringConverter converter =
QDeclarativeMetaType::customStringConverter(data.type);
QVariant v = (*converter)(primitive);
QMetaProperty prop =
target->metaObject()->property(instr.assignCustomType.propertyIndex);
if (v.isNull() || ((int)prop.type() != data.type && prop.userType() != data.type))
VME_EXCEPTION(QCoreApplication::translate("QDeclarativeVME","Cannot assign value %1 to property %2").arg(primitive).arg(QString::fromUtf8(prop.name())));
void *a[] = { (void *)v.data(), 0, &status, &flags };
QMetaObject::metacall(target, QMetaObject::WriteProperty,
instr.assignCustomType.propertyIndex, a);
}
break;
case QDeclarativeInstruction::AssignSignalObject:
{
// XXX optimize
QObject *assign = stack.pop();
QObject *target = stack.top();
int sigIdx = instr.assignSignalObject.signal;
const QByteArray &pr = datas.at(sigIdx);
QDeclarativeProperty prop(target, QString::fromUtf8(pr));
if (prop.type() & QDeclarativeProperty::SignalProperty) {
QMetaMethod method = QDeclarativeMetaType::defaultMethod(assign);
if (method.signature() == 0)
VME_EXCEPTION(QCoreApplication::translate("QDeclarativeVME","Cannot assign object type %1 with no default method").arg(QString::fromLatin1(assign->metaObject()->className())));
if (!QMetaObject::checkConnectArgs(prop.method().signature(), method.signature()))
VME_EXCEPTION(QCoreApplication::translate("QDeclarativeVME","Cannot connect mismatched signal/slot %1 %vs. %2").arg(QString::fromLatin1(method.signature())).arg(QString::fromLatin1(prop.method().signature())));
QDeclarativePropertyPrivate::connect(target, prop.index(), assign, method.methodIndex());
} else {
VME_EXCEPTION(QCoreApplication::translate("QDeclarativeVME","Cannot assign an object to signal property %1").arg(QString::fromUtf8(pr)));
}
}
break;
case QDeclarativeInstruction::StoreSignal:
{
QObject *target = stack.top();
QObject *context = stack.at(stack.count() - 1 - instr.storeSignal.context);
QMetaMethod signal = target->metaObject()->method(instr.storeSignal.signalIndex);
QDeclarativeBoundSignal *bs = new QDeclarativeBoundSignal(target, signal, target);
QDeclarativeExpression *expr =
new QDeclarativeExpression(ctxt, context, primitives.at(instr.storeSignal.value));
expr->setSourceLocation(comp->name, instr.line);
static_cast<QDeclarativeExpressionPrivate *>(QObjectPrivate::get(expr))->name = datas.at(instr.storeSignal.name);
bs->setExpression(expr);
}
break;
case QDeclarativeInstruction::StoreImportedScript:
{
ctxt->addImportedScript(scripts.at(instr.storeScript.value));
}
break;
case QDeclarativeInstruction::StoreScriptString:
{
QObject *target = stack.top();
QObject *scope = stack.at(stack.count() - 1 - instr.storeScriptString.scope);
QDeclarativeScriptString ss;
ss.setContext(ctxt->asQDeclarativeContext());
ss.setScopeObject(scope);
ss.setScript(primitives.at(instr.storeScriptString.value));
void *a[] = { &ss, 0, &status, &flags };
QMetaObject::metacall(target, QMetaObject::WriteProperty,
instr.storeScriptString.propertyIndex, a);
}
break;
case QDeclarativeInstruction::BeginObject:
{
QObject *target = stack.top();
QDeclarativeParserStatus *status = reinterpret_cast<QDeclarativeParserStatus *>(reinterpret_cast<char *>(target) + instr.begin.castValue);
parserStatus.append(status);
status->d = &parserStatus.values[parserStatus.count - 1];
status->classBegin();
}
break;
case QDeclarativeInstruction::StoreBinding:
case QDeclarativeInstruction::StoreBindingOnAlias:
{
QObject *target =
stack.at(stack.count() - 1 - instr.assignBinding.owner);
QObject *context =
stack.at(stack.count() - 1 - instr.assignBinding.context);
QDeclarativeProperty mp =
QDeclarativePropertyPrivate::restore(datas.at(instr.assignBinding.property), target, ctxt);
int coreIndex = mp.index();
if ((stack.count() - instr.assignBinding.owner) == 1 && bindingSkipList.testBit(coreIndex))
break;
QDeclarativeBinding *bind = new QDeclarativeBinding((void *)datas.at(instr.assignBinding.value).constData(), comp, context, ctxt, comp->name, instr.line, 0);
bindValues.append(bind);
bind->m_mePtr = &bindValues.values[bindValues.count - 1];
bind->setTarget(mp);
if (instr.type == QDeclarativeInstruction::StoreBindingOnAlias) {
QDeclarativeAbstractBinding *old = QDeclarativePropertyPrivate::setBindingNoEnable(target, coreIndex, QDeclarativePropertyPrivate::valueTypeCoreIndex(mp), bind);
if (old) { old->destroy(); }
} else {
bind->addToObject(target, QDeclarativePropertyPrivate::bindingIndex(mp));
}
}
break;
case QDeclarativeInstruction::StoreCompiledBinding:
{
QObject *target =
stack.at(stack.count() - 1 - instr.assignBinding.owner);
QObject *scope =
stack.at(stack.count() - 1 - instr.assignBinding.context);
int property = instr.assignBinding.property;
if (stack.count() == 1 && bindingSkipList.testBit(property & 0xFFFF))
break;
QDeclarativeAbstractBinding *binding =
ctxt->optimizedBindings->configBinding(instr.assignBinding.value, target, scope, property);
bindValues.append(binding);
binding->m_mePtr = &bindValues.values[bindValues.count - 1];
binding->addToObject(target, property);
}
break;
case QDeclarativeInstruction::StoreValueSource:
{
QObject *obj = stack.pop();
QDeclarativePropertyValueSource *vs = reinterpret_cast<QDeclarativePropertyValueSource *>(reinterpret_cast<char *>(obj) + instr.assignValueSource.castValue);
QObject *target = stack.at(stack.count() - 1 - instr.assignValueSource.owner);
QDeclarativeProperty prop =
QDeclarativePropertyPrivate::restore(datas.at(instr.assignValueSource.property), target, ctxt);
obj->setParent(target);
vs->setTarget(prop);
}
break;
case QDeclarativeInstruction::StoreValueInterceptor:
{
QObject *obj = stack.pop();
QDeclarativePropertyValueInterceptor *vi = reinterpret_cast<QDeclarativePropertyValueInterceptor *>(reinterpret_cast<char *>(obj) + instr.assignValueInterceptor.castValue);
QObject *target = stack.at(stack.count() - 1 - instr.assignValueInterceptor.owner);
QDeclarativeProperty prop =
QDeclarativePropertyPrivate::restore(datas.at(instr.assignValueInterceptor.property), target, ctxt);
obj->setParent(target);
vi->setTarget(prop);
QDeclarativeVMEMetaObject *mo = static_cast<QDeclarativeVMEMetaObject *>((QMetaObject*)target->metaObject());
mo->registerInterceptor(prop.index(), QDeclarativePropertyPrivate::valueTypeCoreIndex(prop), vi);
}
break;
case QDeclarativeInstruction::StoreObjectQList:
{
QObject *assign = stack.pop();
const ListInstance &list = qliststack.top();
list.qListProperty.append((QDeclarativeListProperty<void>*)&list.qListProperty, assign);
}
break;
case QDeclarativeInstruction::AssignObjectList:
{
// This is only used for assigning interfaces
QObject *assign = stack.pop();
const ListInstance &list = qliststack.top();
int type = list.type;
void *ptr = 0;
const char *iid = QDeclarativeMetaType::interfaceIId(type);
if (iid)
ptr = assign->qt_metacast(iid);
if (!ptr)
VME_EXCEPTION(QCoreApplication::translate("QDeclarativeVME","Cannot assign object to list"));
list.qListProperty.append((QDeclarativeListProperty<void>*)&list.qListProperty, ptr);
}
break;
case QDeclarativeInstruction::StoreVariantObject:
{
QObject *assign = stack.pop();
QObject *target = stack.top();
CLEAN_PROPERTY(target, instr.storeObject.propertyIndex);
QVariant v = QVariant::fromValue(assign);
void *a[] = { &v, 0, &status, &flags };
QMetaObject::metacall(target, QMetaObject::WriteProperty,
instr.storeObject.propertyIndex, a);
}
break;
case QDeclarativeInstruction::StoreInterface:
{
QObject *assign = stack.pop();
QObject *target = stack.top();
CLEAN_PROPERTY(target, instr.storeObject.propertyIndex);
int coreIdx = instr.storeObject.propertyIndex;
QMetaProperty prop = target->metaObject()->property(coreIdx);
int t = prop.userType();
const char *iid = QDeclarativeMetaType::interfaceIId(t);
bool ok = false;
if (iid) {
void *ptr = assign->qt_metacast(iid);
if (ptr) {
void *a[] = { &ptr, 0, &status, &flags };
QMetaObject::metacall(target,
QMetaObject::WriteProperty,
coreIdx, a);
ok = true;
}
}
if (!ok)
VME_EXCEPTION(QCoreApplication::translate("QDeclarativeVME","Cannot assign object to interface property"));
}
break;
case QDeclarativeInstruction::FetchAttached:
{
QObject *target = stack.top();
QObject *qmlObject = qmlAttachedPropertiesObjectById(instr.fetchAttached.id, target);
if (!qmlObject)
VME_EXCEPTION(QCoreApplication::translate("QDeclarativeVME","Unable to create attached object"));
stack.push(qmlObject);
}
break;
case QDeclarativeInstruction::FetchQList:
{
QObject *target = stack.top();
qliststack.push(ListInstance(instr.fetchQmlList.type));
void *a[1];
a[0] = (void *)&(qliststack.top().qListProperty);
QMetaObject::metacall(target, QMetaObject::ReadProperty,
instr.fetchQmlList.property, a);
}
break;
case QDeclarativeInstruction::FetchObject:
{
QObject *target = stack.top();
QObject *obj = 0;
// NOTE: This assumes a cast to QObject does not alter the
// object pointer
void *a[1];
a[0] = &obj;
QMetaObject::metacall(target, QMetaObject::ReadProperty,
instr.fetch.property, a);
if (!obj)
VME_EXCEPTION(QCoreApplication::translate("QDeclarativeVME","Cannot set properties on %1 as it is null").arg(QString::fromUtf8(target->metaObject()->property(instr.fetch.property).name())));
stack.push(obj);
}
break;
case QDeclarativeInstruction::PopQList:
{
qliststack.pop();
}
break;
case QDeclarativeInstruction::Defer:
{
if (instr.defer.deferCount) {
QObject *target = stack.top();
QDeclarativeData *data =
QDeclarativeData::get(target, true);
comp->addref();
data->deferredComponent = comp;
data->deferredIdx = ii;
ii += instr.defer.deferCount;
}
}
break;
case QDeclarativeInstruction::PopFetchedObject:
{
stack.pop();
}
break;
case QDeclarativeInstruction::FetchValueType:
{
QObject *target = stack.top();
if (instr.fetchValue.bindingSkipList != 0) {
// Possibly need to clear bindings
QDeclarativeData *targetData = QDeclarativeData::get(target);
if (targetData) {
QDeclarativeAbstractBinding *binding =
QDeclarativePropertyPrivate::binding(target, instr.fetchValue.property, -1);
if (binding && binding->bindingType() != QDeclarativeAbstractBinding::ValueTypeProxy) {
QDeclarativePropertyPrivate::setBinding(target, instr.fetchValue.property, -1, 0);
binding->destroy();
} else if (binding) {
QDeclarativeValueTypeProxyBinding *proxy =
static_cast<QDeclarativeValueTypeProxyBinding *>(binding);
proxy->removeBindings(instr.fetchValue.bindingSkipList);
}
}
}
QDeclarativeValueType *valueHandler = ep->valueTypes[instr.fetchValue.type];
valueHandler->read(target, instr.fetchValue.property);
stack.push(valueHandler);
}
break;
case QDeclarativeInstruction::PopValueType:
{
QDeclarativeValueType *valueHandler =
static_cast<QDeclarativeValueType *>(stack.pop());
QObject *target = stack.top();
valueHandler->write(target, instr.fetchValue.property,
QDeclarativePropertyPrivate::BypassInterceptor);
}
break;
default:
qFatal("QDeclarativeCompiledData: Internal error - unknown instruction %d", instr.type);
break;
}
}
if (isError()) {
if (!stack.isEmpty()) {
delete stack.at(0); // ### What about failures in deferred creation?
} else {
ctxt->destroy();
}
QDeclarativeEnginePrivate::clear(bindValues);
QDeclarativeEnginePrivate::clear(parserStatus);
return 0;
}
if (bindValues.count)
ep->bindValues << bindValues;
else if (bindValues.values)
bindValues.clear();
if (parserStatus.count)
ep->parserStatus << parserStatus;
else if (parserStatus.values)
parserStatus.clear();
Q_ASSERT(stack.count() == 1);
return stack.top();
}
