QV4::ReturnedValue QQmlVMEMetaObject::vmeMethod(int index)
{
if (index < methodOffset()) {
Q_ASSERT(parentVMEMetaObject());
return parentVMEMetaObject()->vmeMethod(index);
}
int plainSignals = metaData->signalCount + metaData->propertyCount + metaData->aliasCount;
Q_ASSERT(index >= (methodOffset() + plainSignals) && index < (methodOffset() + plainSignals + metaData->methodCount));
return method(index - methodOffset() - plainSignals);
}
// Used by debugger
void QQmlVMEMetaObject::setVmeMethod(int index, QV4::ValueRef function)
{
if (index < methodOffset()) {
Q_ASSERT(parentVMEMetaObject());
return parentVMEMetaObject()->setVmeMethod(index, function);
}
int plainSignals = metaData->signalCount + metaData->propertyCount + metaData->aliasCount;
Q_ASSERT(index >= (methodOffset() + plainSignals) && index < (methodOffset() + plainSignals + metaData->methodCount));
if (!v8methods)
v8methods = new QV4::PersistentValue[metaData->methodCount];
int methodIndex = index - methodOffset() - plainSignals;
v8methods[methodIndex] = function;
}
quint16 QQmlVMEMetaObject::vmeMethodLineNumber(int index)
{
if (index < methodOffset()) {
Q_ASSERT(parentVMEMetaObject());
return parentVMEMetaObject()->vmeMethodLineNumber(index);
}
int plainSignals = metaData->signalCount + metaData->propertyCount + metaData->aliasCount;
Q_ASSERT(index >= (methodOffset() + plainSignals) && index < (methodOffset() + plainSignals + metaData->methodCount));
int rawIndex = index - methodOffset() - plainSignals;
QQmlVMEMetaData::MethodData *data = metaData->methodData() + rawIndex;
return data->lineNumber;
}
void GoValueMetaObject::activatePropIndex(int propIndex)
{
// Properties are added first, so the first fieldLen methods are in
// fact the signals of the respective properties.
int relativeIndex = propIndex - propertyOffset();
activate(value, methodOffset() + relativeIndex, 0);
}
void QQmlVMEMetaObject::connectAliasSignal(int index, bool indexInSignalRange)
{
int aliasId = (index - (indexInSignalRange ? signalOffset() : methodOffset())) - metaData->propertyCount;
if (aliasId < 0 || aliasId >= metaData->aliasCount)
return;
connectAlias(aliasId);
}
void QQmlVMEMetaObject::writeProperty(int id, const QVariant &value)
{
if (id >= firstVarPropertyIndex) {
if (!ensureVarPropertiesAllocated())
return;
QV4::Scope scope(varProperties.engine());
// Importantly, if the current value is a scarce resource, we need to ensure that it
// gets automatically released by the engine if no other references to it exist.
QV4::ScopedObject vp(scope, varProperties.value());
QV4::Scoped<QV4::VariantObject> oldv(scope, vp->getIndexed(id - firstVarPropertyIndex));
if (!!oldv)
oldv->removeVmePropertyReference();
// And, if the new value is a scarce resource, we need to ensure that it does not get
// automatically released by the engine until no other references to it exist.
QV4::ScopedValue newv(scope, QQmlEnginePrivate::get(ctxt->engine)->v8engine()->fromVariant(value));
QV4::Scoped<QV4::VariantObject> v(scope, newv);
if (!!v)
v->addVmePropertyReference();
// Write the value and emit change signal as appropriate.
QVariant currentValue = readPropertyAsVariant(id);
vp->putIndexed(id - firstVarPropertyIndex, newv);
if ((currentValue.userType() != value.userType() || currentValue != value))
activate(object, methodOffset() + id, 0);
} else {
bool needActivate = false;
if (value.userType() == QMetaType::QObjectStar) {
QObject *o = *(QObject **)value.data();
needActivate = (data[id].dataType() != QMetaType::QObjectStar || data[id].asQObject() != o);
data[id].setValue(o, this, id);
} else {
needActivate = (data[id].dataType() != qMetaTypeId<QVariant>() ||
data[id].asQVariant().userType() != value.userType() ||
data[id].asQVariant() != value);
data[id].setValue(value);
}
if (needActivate)
activate(object, methodOffset() + id, 0);
}
}
void QQmlVMEMetaObject::writeVarProperty(int id, const QV4::ValueRef value)
{
Q_ASSERT(id >= firstVarPropertyIndex);
if (!ensureVarPropertiesAllocated())
return;
QV4::Scope scope(varProperties.engine());
// Importantly, if the current value is a scarce resource, we need to ensure that it
// gets automatically released by the engine if no other references to it exist.
QV4::ScopedObject vp(scope, varProperties.value());
QV4::Scoped<QV4::VariantObject> oldv(scope, vp->getIndexed(id - firstVarPropertyIndex));
if (!!oldv)
oldv->removeVmePropertyReference();
QObject *valueObject = 0;
QQmlVMEVariantQObjectPtr *guard = getQObjectGuardForProperty(id);
QV4::ScopedObject o(scope, value);
if (o) {
// And, if the new value is a scarce resource, we need to ensure that it does not get
// automatically released by the engine until no other references to it exist.
if (QV4::VariantObject *v = o->as<QV4::VariantObject>()) {
v->addVmePropertyReference();
} else if (QV4::QObjectWrapper *wrapper = o->as<QV4::QObjectWrapper>()) {
// We need to track this QObject to signal its deletion
valueObject = wrapper->object();
// Do we already have a QObject guard for this property?
if (valueObject && !guard) {
guard = new QQmlVMEVariantQObjectPtr(true);
varObjectGuards.append(guard);
}
}
}
if (guard) {
guard->setGuardedValue(valueObject, this, id);
}
// Write the value and emit change signal as appropriate.
vp->putIndexed(id - firstVarPropertyIndex, value);
activate(object, methodOffset() + id, 0);
}
int GoValueMetaObject::metaCall(QMetaObject::Call c, int idx, void **a)
{
//qWarning() << "GoValueMetaObject::metaCall" << c << idx;
switch (c) {
case QMetaObject::ReadProperty:
case QMetaObject::WriteProperty:
{
// TODO Cache propertyOffset, methodOffset (and maybe qmlEngine)
int propOffset = propertyOffset();
if (idx < propOffset) {
return value->qt_metacall(c, idx, a);
}
GoMemberInfo *memberInfo = typeInfo->fields;
for (int i = 0; i < typeInfo->fieldsLen; i++) {
if (memberInfo->metaIndex == idx) {
if (c == QMetaObject::ReadProperty) {
DataValue result;
hookGoValueReadField(qmlEngine(value), ref, memberInfo->reflectIndex, memberInfo->reflectGetIndex, memberInfo->reflectSetIndex, &result);
if (memberInfo->memberType == DTListProperty) {
if (result.dataType != DTListProperty) {
panicf("reading DTListProperty field returned non-DTListProperty result");
}
QQmlListProperty<QObject> *in = *reinterpret_cast<QQmlListProperty<QObject> **>(result.data);
QQmlListProperty<QObject> *out = reinterpret_cast<QQmlListProperty<QObject> *>(a[0]);
*out = *in;
// TODO Could provide a single variable in the stack to ReadField instead.
delete in;
} else {
QVariant *out = reinterpret_cast<QVariant *>(a[0]);
unpackDataValue(&result, out);
}
} else {
DataValue assign;
QVariant *in = reinterpret_cast<QVariant *>(a[0]);
packDataValue(in, &assign);
hookGoValueWriteField(qmlEngine(value), ref, memberInfo->reflectIndex, memberInfo->reflectSetIndex, &assign);
activate(value, methodOffset() + (idx - propOffset), 0);
}
return -1;
}
memberInfo++;
}
QMetaProperty prop = property(idx);
qWarning() << "Property" << prop.name() << "not found!?";
break;
}
case QMetaObject::InvokeMetaMethod:
{
if (idx < methodOffset()) {
return value->qt_metacall(c, idx, a);
}
GoMemberInfo *memberInfo = typeInfo->methods;
for (int i = 0; i < typeInfo->methodsLen; i++) {
if (memberInfo->metaIndex == idx) {
// args[0] is the result if any.
DataValue args[1 + MaxParams];
for (int i = 1; i < memberInfo->numIn+1; i++) {
packDataValue(reinterpret_cast<QVariant *>(a[i]), &args[i]);
}
hookGoValueCallMethod(qmlEngine(value), ref, memberInfo->reflectIndex, args);
if (memberInfo->numOut > 0) {
unpackDataValue(&args[0], reinterpret_cast<QVariant *>(a[0]));
}
return -1;
}
memberInfo++;
}
QMetaMethod m = method(idx);
qWarning() << "Method" << m.name() << "not found!?";
break;
}
default:
break; // Unhandled.
}
return -1;
}
int GoValueMetaObject::metaCall(QMetaObject::Call c, int idx, void **a)
{
switch (c) {
case QMetaObject::ReadProperty:
case QMetaObject::WriteProperty:
{
// TODO Cache propertyOffset, methodOffset, and qmlEngine results?
if (idx < propertyOffset()) {
return value->qt_metacall(c, idx, a);
}
GoMemberInfo *memberInfo = valuePriv->typeInfo->fields;
for (int i = 0; i < valuePriv->typeInfo->fieldsLen; i++) {
if (memberInfo->metaIndex == idx) {
if (c == QMetaObject::ReadProperty) {
DataValue result;
hookGoValueReadField(qmlEngine(value), valuePriv->addr, memberInfo->reflectIndex, &result);
QVariant *out = reinterpret_cast<QVariant *>(a[0]);
unpackDataValue(&result, out);
} else {
DataValue assign;
QVariant *in = reinterpret_cast<QVariant *>(a[0]);
packDataValue(in, &assign);
hookGoValueWriteField(qmlEngine(value), valuePriv->addr, memberInfo->reflectIndex, &assign);
}
return -1;
}
memberInfo++;
}
QMetaProperty prop = property(idx);
qWarning() << "Property" << prop.name() << "not found!?";
break;
}
case QMetaObject::InvokeMetaMethod:
{
if (idx < methodOffset()) {
return value->qt_metacall(c, idx, a);
}
GoMemberInfo *memberInfo = valuePriv->typeInfo->methods;
for (int i = 0; i < valuePriv->typeInfo->methodsLen; i++) {
if (memberInfo->metaIndex == idx) {
// args[0] is the result if any.
DataValue args[1 + MaxParams];
for (int i = 1; i < memberInfo->numIn+1; i++) {
packDataValue(reinterpret_cast<QVariant *>(a[i]), &args[i]);
}
hookGoValueCallMethod(qmlEngine(value), valuePriv->addr, memberInfo->reflectIndex, args);
if (memberInfo->numOut > 0) {
unpackDataValue(&args[0], reinterpret_cast<QVariant *>(a[0]));
}
return -1;
}
memberInfo++;
}
QMetaMethod m = method(idx);
qWarning() << "Method" << m.name() << "not found!?";
break;
}
default:
break; // Unhandled.
}
return -1;
}
int QQmlVMEMetaObject::metaCall(QMetaObject::Call c, int _id, void **a)
{
int id = _id;
if (c == QMetaObject::WriteProperty && interceptors &&
!(*reinterpret_cast<int*>(a[3]) & QQmlPropertyPrivate::BypassInterceptor)) {
for (QQmlPropertyValueInterceptor *vi = interceptors; vi; vi = vi->m_next) {
if (vi->m_coreIndex != id)
continue;
int valueIndex = vi->m_valueTypeCoreIndex;
int type = QQmlData::get(object)->propertyCache->property(id)->propType;
if (type != QVariant::Invalid) {
if (valueIndex != -1) {
QQmlValueType *valueType = QQmlValueTypeFactory::valueType(type);
Q_ASSERT(valueType);
//
// Consider the following case:
// color c = { 0.1, 0.2, 0.3 }
// interceptor exists on c.r
// write { 0.2, 0.4, 0.6 }
//
// The interceptor may choose not to update the r component at this
// point (for example, a behavior that creates an animation). But we
// need to ensure that the g and b components are updated correctly.
//
// So we need to perform a full write where the value type is:
// r = old value, g = new value, b = new value
//
// And then call the interceptor which may or may not write the
// new value to the r component.
//
// This will ensure that the other components don't contain stale data
// and any relevant signals are emitted.
//
// To achieve this:
// (1) Store the new value type as a whole (needed due to
// aliasing between a[0] and static storage in value type).
// (2) Read the entire existing value type from object -> valueType temp.
// (3) Read the previous value of the component being changed
// from the valueType temp.
// (4) Write the entire new value type into the temp.
// (5) Overwrite the component being changed with the old value.
// (6) Perform a full write to the value type (which may emit signals etc).
// (7) Issue the interceptor call with the new component value.
//
QMetaProperty valueProp = valueType->metaObject()->property(valueIndex);
QVariant newValue(type, a[0]);
valueType->read(object, id);
QVariant prevComponentValue = valueProp.read(valueType);
valueType->setValue(newValue);
QVariant newComponentValue = valueProp.read(valueType);
// Don't apply the interceptor if the intercepted value has not changed
bool updated = false;
if (newComponentValue != prevComponentValue) {
valueProp.write(valueType, prevComponentValue);
valueType->write(object, id, QQmlPropertyPrivate::DontRemoveBinding | QQmlPropertyPrivate::BypassInterceptor);
vi->write(newComponentValue);
updated = true;
}
if (updated)
return -1;
} else {
vi->write(QVariant(type, a[0]));
return -1;
}
}
}
}
if (c == QMetaObject::ReadProperty || c == QMetaObject::WriteProperty || c == QMetaObject::ResetProperty) {
if (id >= propOffset()) {
id -= propOffset();
if (id < metaData->propertyCount) {
int t = (metaData->propertyData() + id)->propertyType;
bool needActivate = false;
if (id >= firstVarPropertyIndex) {
Q_ASSERT(t == QMetaType::QVariant);
// the context can be null if accessing var properties from cpp after re-parenting an item.
QQmlEnginePrivate *ep = (ctxt == 0 || ctxt->engine == 0) ? 0 : QQmlEnginePrivate::get(ctxt->engine);
QV8Engine *v8e = (ep == 0) ? 0 : ep->v8engine();
if (v8e) {
if (c == QMetaObject::ReadProperty) {
*reinterpret_cast<QVariant *>(a[0]) = readPropertyAsVariant(id);
} else if (c == QMetaObject::WriteProperty) {
writeProperty(id, *reinterpret_cast<QVariant *>(a[0]));
}
} else if (c == QMetaObject::ReadProperty) {
// if the context was disposed, we just return an invalid variant from read.
*reinterpret_cast<QVariant *>(a[0]) = QVariant();
}
} else {
if (c == QMetaObject::ReadProperty) {
switch(t) {
case QVariant::Int:
*reinterpret_cast<int *>(a[0]) = data[id].asInt();
break;
case QVariant::Bool:
*reinterpret_cast<bool *>(a[0]) = data[id].asBool();
break;
case QVariant::Double:
*reinterpret_cast<double *>(a[0]) = data[id].asDouble();
break;
case QVariant::String:
*reinterpret_cast<QString *>(a[0]) = data[id].asQString();
break;
case QVariant::Url:
*reinterpret_cast<QUrl *>(a[0]) = data[id].asQUrl();
break;
case QVariant::Date:
*reinterpret_cast<QDate *>(a[0]) = data[id].asQDate();
break;
case QVariant::DateTime:
*reinterpret_cast<QDateTime *>(a[0]) = data[id].asQDateTime();
break;
case QVariant::RectF:
*reinterpret_cast<QRectF *>(a[0]) = data[id].asQRectF();
break;
case QVariant::SizeF:
*reinterpret_cast<QSizeF *>(a[0]) = data[id].asQSizeF();
break;
case QVariant::PointF:
*reinterpret_cast<QPointF *>(a[0]) = data[id].asQPointF();
break;
case QMetaType::QObjectStar:
*reinterpret_cast<QObject **>(a[0]) = data[id].asQObject();
break;
case QMetaType::QVariant:
*reinterpret_cast<QVariant *>(a[0]) = readPropertyAsVariant(id);
break;
default:
QQml_valueTypeProvider()->readValueType(data[id].dataType(), data[id].dataPtr(), data->dataSize(), t, a[0]);
break;
}
if (t == qMetaTypeId<QQmlListProperty<QObject> >()) {
int listIndex = data[id].asInt();
const List *list = &listProperties.at(listIndex);
*reinterpret_cast<QQmlListProperty<QObject> *>(a[0]) =
QQmlListProperty<QObject>(object, (void *)list,
list_append, list_count, list_at,
list_clear);
}
} else if (c == QMetaObject::WriteProperty) {
switch(t) {
case QVariant::Int:
needActivate = *reinterpret_cast<int *>(a[0]) != data[id].asInt();
data[id].setValue(*reinterpret_cast<int *>(a[0]));
break;
case QVariant::Bool:
needActivate = *reinterpret_cast<bool *>(a[0]) != data[id].asBool();
data[id].setValue(*reinterpret_cast<bool *>(a[0]));
break;
case QVariant::Double:
needActivate = *reinterpret_cast<double *>(a[0]) != data[id].asDouble();
data[id].setValue(*reinterpret_cast<double *>(a[0]));
break;
case QVariant::String:
needActivate = *reinterpret_cast<QString *>(a[0]) != data[id].asQString();
data[id].setValue(*reinterpret_cast<QString *>(a[0]));
break;
case QVariant::Url:
needActivate = *reinterpret_cast<QUrl *>(a[0]) != data[id].asQUrl();
data[id].setValue(*reinterpret_cast<QUrl *>(a[0]));
break;
case QVariant::Date:
needActivate = *reinterpret_cast<QDate *>(a[0]) != data[id].asQDate();
data[id].setValue(*reinterpret_cast<QDate *>(a[0]));
break;
case QVariant::DateTime:
needActivate = *reinterpret_cast<QDateTime *>(a[0]) != data[id].asQDateTime();
data[id].setValue(*reinterpret_cast<QDateTime *>(a[0]));
break;
case QVariant::RectF:
needActivate = *reinterpret_cast<QRectF *>(a[0]) != data[id].asQRectF();
data[id].setValue(*reinterpret_cast<QRectF *>(a[0]));
break;
case QVariant::SizeF:
needActivate = *reinterpret_cast<QSizeF *>(a[0]) != data[id].asQSizeF();
data[id].setValue(*reinterpret_cast<QSizeF *>(a[0]));
break;
case QVariant::PointF:
needActivate = *reinterpret_cast<QPointF *>(a[0]) != data[id].asQPointF();
data[id].setValue(*reinterpret_cast<QPointF *>(a[0]));
break;
case QMetaType::QObjectStar:
needActivate = *reinterpret_cast<QObject **>(a[0]) != data[id].asQObject();
data[id].setValue(*reinterpret_cast<QObject **>(a[0]), this, id);
break;
case QMetaType::QVariant:
writeProperty(id, *reinterpret_cast<QVariant *>(a[0]));
break;
default:
data[id].ensureValueType(t);
needActivate = !QQml_valueTypeProvider()->equalValueType(t, a[0], data[id].dataPtr(), data[id].dataSize());
QQml_valueTypeProvider()->writeValueType(t, a[0], data[id].dataPtr(), data[id].dataSize());
break;
}
}
}
if (c == QMetaObject::WriteProperty && needActivate) {
activate(object, methodOffset() + id, 0);
}
return -1;
}
id -= metaData->propertyCount;
if (id < metaData->aliasCount) {
QQmlVMEMetaData::AliasData *d = metaData->aliasData() + id;
if (d->flags & QML_ALIAS_FLAG_PTR && c == QMetaObject::ReadProperty)
*reinterpret_cast<void **>(a[0]) = 0;
if (!ctxt) return -1;
QQmlContext *context = ctxt->asQQmlContext();
QQmlContextPrivate *ctxtPriv = QQmlContextPrivate::get(context);
QObject *target = ctxtPriv->data->idValues[d->contextIdx].data();
if (!target)
return -1;
connectAlias(id);
if (d->isObjectAlias()) {
*reinterpret_cast<QObject **>(a[0]) = target;
return -1;
}
// Remove binding (if any) on write
if(c == QMetaObject::WriteProperty) {
int flags = *reinterpret_cast<int*>(a[3]);
if (flags & QQmlPropertyPrivate::RemoveBindingOnAliasWrite) {
QQmlData *targetData = QQmlData::get(target);
if (targetData && targetData->hasBindingBit(d->propertyIndex())) {
QQmlAbstractBinding *binding = QQmlPropertyPrivate::setBinding(target, d->propertyIndex(), d->isValueTypeAlias()?d->valueTypeIndex():-1, 0);
if (binding) binding->destroy();
}
}
}
if (d->isValueTypeAlias()) {
// Value type property
QQmlValueType *valueType = QQmlValueTypeFactory::valueType(d->valueType());
Q_ASSERT(valueType);
valueType->read(target, d->propertyIndex());
int rv = QMetaObject::metacall(valueType, c, d->valueTypeIndex(), a);
if (c == QMetaObject::WriteProperty)
valueType->write(target, d->propertyIndex(), 0x00);
return rv;
} else {
return QMetaObject::metacall(target, c, d->propertyIndex(), a);
}
}
return -1;
}
} else if(c == QMetaObject::InvokeMetaMethod) {
if (id >= methodOffset()) {
id -= methodOffset();
int plainSignals = metaData->signalCount + metaData->propertyCount +
metaData->aliasCount;
if (id < plainSignals) {
activate(object, _id, a);
return -1;
}
id -= plainSignals;
if (id < metaData->methodCount) {
if (!ctxt->engine)
return -1; // We can't run the method
QQmlEnginePrivate *ep = QQmlEnginePrivate::get(ctxt->engine);
ep->referenceScarceResources(); // "hold" scarce resources in memory during evaluation.
QV4::Scope scope(ep->v4engine());
QV4::Scoped<QV4::FunctionObject> function(scope, method(id));
if (!function) {
// The function was not compiled. There are some exceptional cases which the
// expression rewriter does not rewrite properly (e.g., \r-terminated lines
// are not rewritten correctly but this bug is deemed out-of-scope to fix for
// performance reasons; see QTBUG-24064) and thus compilation will have failed.
QQmlError e;
e.setDescription(QString(QLatin1String("Exception occurred during compilation of function: %1")).
arg(QLatin1String(QMetaObject::method(_id).methodSignature().constData())));
ep->warning(e);
return -1; // The dynamic method with that id is not available.
}
QQmlVMEMetaData::MethodData *data = metaData->methodData() + id;
QV4::ScopedCallData callData(scope, data->parameterCount);
callData->thisObject = ep->v8engine()->global();
for (int ii = 0; ii < data->parameterCount; ++ii)
callData->args[ii] = ep->v8engine()->fromVariant(*(QVariant *)a[ii + 1]);
QV4::ScopedValue result(scope);
QV4::ExecutionContext *ctx = function->engine()->currentContext();
result = function->call(callData);
if (scope.hasException()) {
QQmlError error = QV4::ExecutionEngine::catchExceptionAsQmlError(ctx);
if (error.isValid())
ep->warning(error);
if (a[0]) *(QVariant *)a[0] = QVariant();
} else {
if (a[0]) *(QVariant *)a[0] = ep->v8engine()->toVariant(result, 0);
}
ep->dereferenceScarceResources(); // "release" scarce resources if top-level expression evaluation is complete.
return -1;
}
return -1;
}
}
if (parent.isT1())
return parent.asT1()->metaCall(object, c, _id, a);
else
return object->qt_metacall(c, _id, a);
}
QQmlVMEMetaObject::QQmlVMEMetaObject(QObject *obj,
QQmlPropertyCache *cache,
const QQmlVMEMetaData *meta, QV4::ExecutionContext *qmlBindingContext, QQmlCompiledData *compiledData)
: object(obj),
ctxt(QQmlData::get(obj, true)->outerContext), cache(cache), metaData(meta),
hasAssignedMetaObjectData(false), data(0), aliasEndpoints(0), firstVarPropertyIndex(-1),
varPropertiesInitialized(false), interceptors(0), v8methods(0)
{
QObjectPrivate *op = QObjectPrivate::get(obj);
if (op->metaObject) {
parent = op->metaObject;
// Use the extra flag in QBiPointer to know if we can safely cast parent.asT1() to QQmlVMEMetaObject*
parent.setFlagValue(QQmlData::get(obj)->hasVMEMetaObject);
} else
parent = obj->metaObject();
op->metaObject = this;
QQmlData::get(obj)->hasVMEMetaObject = true;
data = new QQmlVMEVariant[metaData->propertyCount - metaData->varPropertyCount];
aConnected.resize(metaData->aliasCount);
int list_type = qMetaTypeId<QQmlListProperty<QObject> >();
int qobject_type = qMetaTypeId<QObject*>();
int variant_type = qMetaTypeId<QVariant>();
// Need JS wrapper to ensure variant and var properties are marked.
// ### FIXME: I hope that this can be removed once we have the proper scope chain
// set up and the JS wrappers always exist.
bool needsJSWrapper = (metaData->varPropertyCount > 0);
// ### Optimize
for (int ii = 0; ii < metaData->propertyCount - metaData->varPropertyCount; ++ii) {
int t = (metaData->propertyData() + ii)->propertyType;
if (t == list_type) {
listProperties.append(List(methodOffset() + ii, this));
data[ii].setValue(listProperties.count() - 1);
} else if (!needsJSWrapper && (t == qobject_type || t == variant_type)) {
needsJSWrapper = true;
}
}
firstVarPropertyIndex = metaData->propertyCount - metaData->varPropertyCount;
if (needsJSWrapper)
ensureQObjectWrapper();
if (qmlBindingContext && metaData->methodCount) {
v8methods = new QV4::PersistentValue[metaData->methodCount];
QV4::CompiledData::CompilationUnit *compilationUnit = compiledData->compilationUnit;
QV4::Scope scope(QQmlEnginePrivate::get(ctxt->engine)->v4engine());
QV4::ScopedObject o(scope);
for (int index = 0; index < metaData->methodCount; ++index) {
QQmlVMEMetaData::MethodData *data = metaData->methodData() + index;
QV4::Function *runtimeFunction = compilationUnit->runtimeFunctions[data->runtimeFunctionIndex];
o = QV4::FunctionObject::createScriptFunction(qmlBindingContext, runtimeFunction);
v8methods[index] = o;
}
}
}
/*! \internal
\a index is in the method index range (QMetaMethod::methodIndex()).
*/
void QQmlVMEMetaObject::activate(QObject *object, int index, void **args)
{
QMetaObject::activate(object, signalOffset(), index - methodOffset(), args);
}
void QQmlVMEMetaObject::listChanged(int id)
{
activate(object, methodOffset() + id, 0);
}
