summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorErik Verbruggen <erik.verbruggen@qt.io>2018-02-22 12:14:34 +0100
committerJani Heikkinen <jani.heikkinen@qt.io>2018-03-20 07:05:24 +0000
commit52b1993ea43a35983615419d297de903a4188f3e (patch)
treee63afbb295b643151abc99be4e68d72f2c0999cd
parentdc0136b8ba25c60f24fece5959d5487cea18b250 (diff)
Fix issue with bindings to aliases that cannot yet be resolved
When an alias points to a child object which has not yet been initialized, it's id won't have been registered yet, so setting up a binding to it will result in a crash. The fix is: when setting a binding target fails, and its target property is an alias, queue them until all bindings have been set up, and try again. Task-number: QTBUG-57041 Change-Id: I4dc5a6d25c0a32fed9fd952c955e2006c76be45a Reviewed-by: Simon Hausmann <simon.hausmann@qt.io> (cherry picked from commit aa94c6c0469b0595f483f13ac88459f0035deef9) (cherry picked from commit c3db3cfa296dbc5aa198520c1411830d165cd496)
-rw-r--r--src/qml/qml/qqmlbinding.cpp13
-rw-r--r--src/qml/qml/qqmlbinding_p.h4
-rw-r--r--src/qml/qml/qqmlobjectcreator.cpp139
-rw-r--r--src/qml/qml/qqmlobjectcreator_p.h3
-rw-r--r--src/qml/qml/qqmlproperty.cpp1
-rw-r--r--tests/auto/qml/qqmllanguage/data/alias.16.qml15
-rw-r--r--tests/auto/qml/qqmllanguage/tst_qqmllanguage.cpp10
7 files changed, 125 insertions, 60 deletions
diff --git a/src/qml/qml/qqmlbinding.cpp b/src/qml/qml/qqmlbinding.cpp
index 325f752cd5..6eecb305b5 100644
--- a/src/qml/qml/qqmlbinding.cpp
+++ b/src/qml/qml/qqmlbinding.cpp
@@ -465,13 +465,13 @@ void QQmlBinding::setTarget(const QQmlProperty &prop)
setTarget(prop.object(), pd->core, &pd->valueTypeData);
}
-void QQmlBinding::setTarget(QObject *object, const QQmlPropertyData &core, const QQmlPropertyData *valueType)
+bool QQmlBinding::setTarget(QObject *object, const QQmlPropertyData &core, const QQmlPropertyData *valueType)
{
m_target = object;
if (!object) {
m_targetIndex = QQmlPropertyIndex();
- return;
+ return false;
}
int coreIndex = core.coreIndex();
@@ -481,9 +481,10 @@ void QQmlBinding::setTarget(QObject *object, const QQmlPropertyData &core, const
int aValueTypeIndex;
if (!vme->aliasTarget(coreIndex, &object, &coreIndex, &aValueTypeIndex)) {
- m_target = 0;
+ // can't resolve id (yet)
+ m_target = nullptr;
m_targetIndex = QQmlPropertyIndex();
- return;
+ return false;
}
if (valueTypeIndex == -1)
valueTypeIndex = aValueTypeIndex;
@@ -492,7 +493,7 @@ void QQmlBinding::setTarget(QObject *object, const QQmlPropertyData &core, const
if (!data || !data->propertyCache) {
m_target = 0;
m_targetIndex = QQmlPropertyIndex();
- return;
+ return false;
}
QQmlPropertyData *propertyData = data->propertyCache->property(coreIndex);
Q_ASSERT(propertyData);
@@ -508,6 +509,8 @@ void QQmlBinding::setTarget(QObject *object, const QQmlPropertyData &core, const
data->propertyCache = QQmlEnginePrivate::get(context()->engine)->cache(m_target->metaObject());
data->propertyCache->addref();
}
+
+ return true;
}
void QQmlBinding::getPropertyData(QQmlPropertyData **propertyData, QQmlPropertyData *valueTypeData) const
diff --git a/src/qml/qml/qqmlbinding_p.h b/src/qml/qml/qqmlbinding_p.h
index 0f2fb329f5..66f8831aef 100644
--- a/src/qml/qml/qqmlbinding_p.h
+++ b/src/qml/qml/qqmlbinding_p.h
@@ -72,6 +72,8 @@ class Q_QML_PRIVATE_EXPORT QQmlBinding : public QQmlJavaScriptExpression,
{
friend class QQmlAbstractBinding;
public:
+ typedef QExplicitlySharedDataPointer<QQmlBinding> Ptr;
+
static QQmlBinding *create(const QQmlPropertyData *, const QQmlScriptString &, QObject *, QQmlContext *);
static QQmlBinding *create(const QQmlPropertyData *, const QString &, QObject *, QQmlContextData *,
const QString &url = QString(), quint16 lineNumber = 0);
@@ -80,7 +82,7 @@ public:
~QQmlBinding();
void setTarget(const QQmlProperty &);
- void setTarget(QObject *, const QQmlPropertyData &, const QQmlPropertyData *valueType);
+ bool setTarget(QObject *, const QQmlPropertyData &, const QQmlPropertyData *valueType);
void setNotifyOnValueChanged(bool);
diff --git a/src/qml/qml/qqmlobjectcreator.cpp b/src/qml/qml/qqmlobjectcreator.cpp
index 78d732d02c..7e51504759 100644
--- a/src/qml/qml/qqmlobjectcreator.cpp
+++ b/src/qml/qml/qqmlobjectcreator.cpp
@@ -780,7 +780,7 @@ void QQmlObjectCreator::setupBindings(bool applyDeferredBindings)
qSwap(_currentList, savedList);
}
-bool QQmlObjectCreator::setPropertyBinding(const QQmlPropertyData *property, const QV4::CompiledData::Binding *binding)
+bool QQmlObjectCreator::setPropertyBinding(const QQmlPropertyData *bindingProperty, const QV4::CompiledData::Binding *binding)
{
if (binding->type == QV4::CompiledData::Binding::Type_AttachedProperty) {
Q_ASSERT(stringAt(qmlUnit->objectAt(binding->value.objectIndex)->inheritedTypeNameIndex).isEmpty());
@@ -802,7 +802,7 @@ bool QQmlObjectCreator::setPropertyBinding(const QQmlPropertyData *property, con
}
// ### resolve this at compile time
- if (property && property->propType() == qMetaTypeId<QQmlScriptString>()) {
+ if (bindingProperty && bindingProperty->propType() == qMetaTypeId<QQmlScriptString>()) {
QQmlScriptString ss(binding->valueAsScriptString(qmlUnit), context->asQQmlContext(), _scopeObject);
ss.d.data()->bindingId = binding->type == QV4::CompiledData::Binding::Type_Script ? binding->value.compiledScriptIndex : (quint32)QQmlBinding::Invalid;
ss.d.data()->lineNumber = binding->location.line;
@@ -814,8 +814,8 @@ bool QQmlObjectCreator::setPropertyBinding(const QQmlPropertyData *property, con
QQmlPropertyData::WriteFlags propertyWriteFlags = QQmlPropertyData::BypassInterceptor |
QQmlPropertyData::RemoveBindingOnAliasWrite;
int propertyWriteStatus = -1;
- void *argv[] = { &ss, 0, &propertyWriteStatus, &propertyWriteFlags };
- QMetaObject::metacall(_qobject, QMetaObject::WriteProperty, property->coreIndex(), argv);
+ void *argv[] = { &ss, nullptr, &propertyWriteStatus, &propertyWriteFlags };
+ QMetaObject::metacall(_qobject, QMetaObject::WriteProperty, bindingProperty->coreIndex(), argv);
return true;
}
@@ -826,7 +826,7 @@ bool QQmlObjectCreator::setPropertyBinding(const QQmlPropertyData *property, con
return false;
}
- if (!property) // ### error
+ if (!bindingProperty) // ### error
return true;
if (binding->type == QV4::CompiledData::Binding::Type_GroupProperty) {
@@ -838,20 +838,20 @@ bool QQmlObjectCreator::setPropertyBinding(const QQmlPropertyData *property, con
const QQmlPropertyData *valueTypeProperty = 0;
QObject *bindingTarget = _bindingTarget;
- if (QQmlValueTypeFactory::isValueType(property->propType())) {
- valueType = QQmlValueTypeFactory::valueType(property->propType());
+ if (QQmlValueTypeFactory::isValueType(bindingProperty->propType())) {
+ valueType = QQmlValueTypeFactory::valueType(bindingProperty->propType());
if (!valueType) {
recordError(binding->location, tr("Cannot set properties on %1 as it is null").arg(stringAt(binding->propertyNameIndex)));
return false;
}
- valueType->read(_qobject, property->coreIndex());
+ valueType->read(_qobject, bindingProperty->coreIndex());
groupObject = valueType;
- valueTypeProperty = property;
+ valueTypeProperty = bindingProperty;
} else {
void *argv[1] = { &groupObject };
- QMetaObject::metacall(_qobject, QMetaObject::ReadProperty, property->coreIndex(), argv);
+ QMetaObject::metacall(_qobject, QMetaObject::ReadProperty, bindingProperty->coreIndex(), argv);
if (!groupObject) {
recordError(binding->location, tr("Cannot set properties on %1 as it is null").arg(stringAt(binding->propertyNameIndex)));
return false;
@@ -864,16 +864,16 @@ bool QQmlObjectCreator::setPropertyBinding(const QQmlPropertyData *property, con
return false;
if (valueType)
- valueType->write(_qobject, property->coreIndex(), QQmlPropertyData::BypassInterceptor);
+ valueType->write(_qobject, bindingProperty->coreIndex(), QQmlPropertyData::BypassInterceptor);
return true;
}
}
- if (_ddata->hasBindingBit(property->coreIndex()) && !(binding->flags & QV4::CompiledData::Binding::IsSignalHandlerExpression)
+ if (_ddata->hasBindingBit(bindingProperty->coreIndex()) && !(binding->flags & QV4::CompiledData::Binding::IsSignalHandlerExpression)
&& !(binding->flags & QV4::CompiledData::Binding::IsOnAssignment)
&& !_valueTypeProperty)
- QQmlPropertyPrivate::removeBinding(_bindingTarget, QQmlPropertyIndex(property->coreIndex()));
+ QQmlPropertyPrivate::removeBinding(_bindingTarget, QQmlPropertyIndex(bindingProperty->coreIndex()));
if (binding->type == QV4::CompiledData::Binding::Type_Script) {
QV4::Function *runtimeFunction = compilationUnit->runtimeFunctions.at(binding->value.compiledScriptIndex);
@@ -882,7 +882,7 @@ bool QQmlObjectCreator::setPropertyBinding(const QQmlPropertyData *property, con
QV4::Scoped<QV4::QmlContext> qmlContext(scope, currentQmlContext());
if (binding->flags & QV4::CompiledData::Binding::IsSignalHandlerExpression) {
- int signalIndex = _propertyCache->methodIndexToSignalIndex(property->coreIndex());
+ int signalIndex = _propertyCache->methodIndexToSignalIndex(bindingProperty->coreIndex());
QQmlBoundSignal *bs = new QQmlBoundSignal(_bindingTarget, signalIndex, _scopeObject, engine);
QQmlBoundSignalExpression *expr = new QQmlBoundSignalExpression(_bindingTarget, signalIndex,
context, _scopeObject, runtimeFunction, qmlContext);
@@ -894,29 +894,39 @@ bool QQmlObjectCreator::setPropertyBinding(const QQmlPropertyData *property, con
// the point property (_qobjectForBindings) and after evaluating the expression,
// the result is written to a value type virtual property, that contains the sub-index
// of the "x" property.
- QQmlBinding *qmlBinding;
- const QQmlPropertyData *prop = property;
+ QQmlBinding::Ptr qmlBinding;
+ const QQmlPropertyData *targetProperty = bindingProperty;
const QQmlPropertyData *subprop = nullptr;
if (_valueTypeProperty) {
- prop = _valueTypeProperty;
- subprop = property;
+ targetProperty = _valueTypeProperty;
+ subprop = bindingProperty;
}
- qmlBinding = QQmlBinding::create(prop, runtimeFunction, _scopeObject, context, qmlContext);
- qmlBinding->setTarget(_bindingTarget, *prop, subprop);
+ qmlBinding = QQmlBinding::create(targetProperty, runtimeFunction, _scopeObject, context, qmlContext);
+
+ auto bindingTarget = _bindingTarget;
+ auto valueTypeProperty = _valueTypeProperty;
+ auto assignBinding = [qmlBinding, bindingTarget, targetProperty, subprop, bindingProperty, valueTypeProperty](QQmlObjectCreatorSharedState *sharedState) -> bool {
+ if (!qmlBinding->setTarget(bindingTarget, *targetProperty, subprop) && targetProperty->isAlias())
+ return false;
- sharedState->allCreatedBindings.push(QQmlAbstractBinding::Ptr(qmlBinding));
+ sharedState->allCreatedBindings.push(qmlBinding);
- if (property->isAlias()) {
- QQmlPropertyPrivate::setBinding(qmlBinding, QQmlPropertyPrivate::DontEnable);
- } else {
- qmlBinding->addToObject();
+ if (bindingProperty->isAlias()) {
+ QQmlPropertyPrivate::setBinding(qmlBinding.data(), QQmlPropertyPrivate::DontEnable);
+ } else {
+ qmlBinding->addToObject();
- if (!_valueTypeProperty) {
- QQmlData *targetDeclarativeData = QQmlData::get(_bindingTarget);
- Q_ASSERT(targetDeclarativeData);
- targetDeclarativeData->setPendingBindingBit(_bindingTarget, property->coreIndex());
+ if (!valueTypeProperty) {
+ QQmlData *targetDeclarativeData = QQmlData::get(bindingTarget);
+ Q_ASSERT(targetDeclarativeData);
+ targetDeclarativeData->setPendingBindingBit(bindingTarget, bindingProperty->coreIndex());
+ }
}
- }
+
+ return true;
+ };
+ if (!assignBinding(sharedState.data()))
+ pendingAliasBindings.push_back(assignBinding);
}
return true;
}
@@ -933,9 +943,9 @@ bool QQmlObjectCreator::setPropertyBinding(const QQmlPropertyData *property, con
QObject *target = createdSubObject->parent();
QQmlProperty prop;
if (_valueTypeProperty)
- prop = QQmlPropertyPrivate::restore(target, *_valueTypeProperty, property, context);
+ prop = QQmlPropertyPrivate::restore(target, *_valueTypeProperty, bindingProperty, context);
else
- prop = QQmlPropertyPrivate::restore(target, *property, nullptr, context);
+ prop = QQmlPropertyPrivate::restore(target, *bindingProperty, nullptr, context);
vs->setTarget(prop);
return true;
}
@@ -945,8 +955,8 @@ bool QQmlObjectCreator::setPropertyBinding(const QQmlPropertyData *property, con
QObject *target = createdSubObject->parent();
QQmlPropertyIndex propertyIndex;
- if (property->isAlias()) {
- QQmlPropertyIndex originalIndex(property->coreIndex(), _valueTypeProperty ? _valueTypeProperty->coreIndex() : -1);
+ if (bindingProperty->isAlias()) {
+ QQmlPropertyIndex originalIndex(bindingProperty->coreIndex(), _valueTypeProperty ? _valueTypeProperty->coreIndex() : -1);
QQmlPropertyIndex propIndex;
QQmlPropertyPrivate::findAliasTarget(target, originalIndex, &target, &propIndex);
QQmlData *data = QQmlData::get(target);
@@ -963,9 +973,9 @@ bool QQmlObjectCreator::setPropertyBinding(const QQmlPropertyData *property, con
} else {
QQmlProperty prop;
if (_valueTypeProperty)
- prop = QQmlPropertyPrivate::restore(target, *_valueTypeProperty, property, context);
+ prop = QQmlPropertyPrivate::restore(target, *_valueTypeProperty, bindingProperty, context);
else
- prop = QQmlPropertyPrivate::restore(target, *property, nullptr, context);
+ prop = QQmlPropertyPrivate::restore(target, *bindingProperty, nullptr, context);
vi->setTarget(prop);
propertyIndex = QQmlPropertyPrivate::propertyIndex(prop);
}
@@ -981,8 +991,8 @@ bool QQmlObjectCreator::setPropertyBinding(const QQmlPropertyData *property, con
// Assigning object to signal property?
if (binding->flags & QV4::CompiledData::Binding::IsSignalHandlerObject) {
- if (!property->isFunction()) {
- recordError(binding->valueLocation, tr("Cannot assign an object to signal property %1").arg(property->name(_qobject)));
+ if (!bindingProperty->isFunction()) {
+ recordError(binding->valueLocation, tr("Cannot assign an object to signal property %1").arg(bindingProperty->name(_qobject)));
return false;
}
QMetaMethod method = QQmlMetaType::defaultMethod(createdSubObject);
@@ -991,7 +1001,7 @@ bool QQmlObjectCreator::setPropertyBinding(const QQmlPropertyData *property, con
return false;
}
- QMetaMethod signalMethod = _qobject->metaObject()->method(property->coreIndex());
+ QMetaMethod signalMethod = _qobject->metaObject()->method(bindingProperty->coreIndex());
if (!QMetaObject::checkConnectArgs(signalMethod, method)) {
recordError(binding->valueLocation,
tr("Cannot connect mismatched signal/slot %1 %vs. %2")
@@ -1000,7 +1010,7 @@ bool QQmlObjectCreator::setPropertyBinding(const QQmlPropertyData *property, con
return false;
}
- QQmlPropertyPrivate::connect(_qobject, property->coreIndex(), createdSubObject, method.methodIndex());
+ QQmlPropertyPrivate::connect(_qobject, bindingProperty->coreIndex(), createdSubObject, method.methodIndex());
return true;
}
@@ -1009,32 +1019,32 @@ bool QQmlObjectCreator::setPropertyBinding(const QQmlPropertyData *property, con
int propertyWriteStatus = -1;
void *argv[] = { 0, 0, &propertyWriteStatus, &propertyWriteFlags };
- if (const char *iid = QQmlMetaType::interfaceIId(property->propType())) {
+ if (const char *iid = QQmlMetaType::interfaceIId(bindingProperty->propType())) {
void *ptr = createdSubObject->qt_metacast(iid);
if (ptr) {
argv[0] = &ptr;
- QMetaObject::metacall(_qobject, QMetaObject::WriteProperty, property->coreIndex(), argv);
+ QMetaObject::metacall(_qobject, QMetaObject::WriteProperty, bindingProperty->coreIndex(), argv);
} else {
recordError(binding->location, tr("Cannot assign object to interface property"));
return false;
}
- } else if (property->propType() == QMetaType::QVariant) {
- if (property->isVarProperty()) {
+ } else if (bindingProperty->propType() == QMetaType::QVariant) {
+ if (bindingProperty->isVarProperty()) {
QV4::Scope scope(v4);
QV4::ScopedValue wrappedObject(scope, QV4::QObjectWrapper::wrap(QV8Engine::getV4(engine), createdSubObject));
- _vmeMetaObject->setVMEProperty(property->coreIndex(), wrappedObject);
+ _vmeMetaObject->setVMEProperty(bindingProperty->coreIndex(), wrappedObject);
} else {
QVariant value = QVariant::fromValue(createdSubObject);
argv[0] = &value;
- QMetaObject::metacall(_qobject, QMetaObject::WriteProperty, property->coreIndex(), argv);
+ QMetaObject::metacall(_qobject, QMetaObject::WriteProperty, bindingProperty->coreIndex(), argv);
}
- } else if (property->isQList()) {
+ } else if (bindingProperty->isQList()) {
Q_ASSERT(_currentList.object);
void *itemToAdd = createdSubObject;
- const char *iid = 0;
- int listItemType = QQmlEnginePrivate::get(engine)->listType(property->propType());
+ const char *iid = nullptr;
+ int listItemType = QQmlEnginePrivate::get(engine)->listType(bindingProperty->propType());
if (listItemType != -1)
iid = QQmlMetaType::interfaceIId(listItemType);
if (iid)
@@ -1050,17 +1060,17 @@ bool QQmlObjectCreator::setPropertyBinding(const QQmlPropertyData *property, con
} else {
// pointer compatibility was tested in QQmlPropertyValidator at type compile time
argv[0] = &createdSubObject;
- QMetaObject::metacall(_qobject, QMetaObject::WriteProperty, property->coreIndex(), argv);
+ QMetaObject::metacall(_qobject, QMetaObject::WriteProperty, bindingProperty->coreIndex(), argv);
}
return true;
}
- if (property->isQList()) {
+ if (bindingProperty->isQList()) {
recordError(binding->location, tr("Cannot assign primitives to lists"));
return false;
}
- setPropertyValue(property, binding);
+ setPropertyValue(bindingProperty, binding);
return true;
}
@@ -1265,12 +1275,33 @@ QObject *QQmlObjectCreator::createInstance(int index, QObject *parent, bool isCo
qSwap(_qmlContext, qmlContext);
- bool result = populateInstance(index, instance, /*binding target*/instance, /*value type property*/0);
+ bool ok = populateInstance(index, instance, /*binding target*/instance, /*value type property*/nullptr);
+ if (ok) {
+ if (isContextObject && !pendingAliasBindings.empty()) {
+ bool processedAtLeastOneBinding = false;
+ do {
+ processedAtLeastOneBinding = false;
+ for (std::vector<PendingAliasBinding>::iterator it = pendingAliasBindings.begin();
+ it != pendingAliasBindings.end(); ) {
+ if ((*it)(sharedState.data())) {
+ it = pendingAliasBindings.erase(it);
+ processedAtLeastOneBinding = true;
+ } else {
+ ++it;
+ }
+ }
+ } while (processedAtLeastOneBinding && pendingAliasBindings.empty());
+ Q_ASSERT(pendingAliasBindings.empty());
+ }
+ } else {
+ // an error occurred, so we can't setup the pending alias bindings
+ pendingAliasBindings.clear();
+ }
qSwap(_qmlContext, qmlContext);
qSwap(_scopeObject, scopeObject);
- return result ? instance : 0;
+ return ok ? instance : nullptr;
}
QQmlContextData *QQmlObjectCreator::finalize(QQmlInstantiationInterrupt &interrupt)
diff --git a/src/qml/qml/qqmlobjectcreator_p.h b/src/qml/qml/qqmlobjectcreator_p.h
index 21ee30acd0..bd99c487ff 100644
--- a/src/qml/qml/qqmlobjectcreator_p.h
+++ b/src/qml/qml/qqmlobjectcreator_p.h
@@ -161,6 +161,9 @@ private:
QV4::QmlContext *_qmlContext;
friend struct QQmlObjectCreatorRecursionWatcher;
+
+ typedef std::function<bool(QQmlObjectCreatorSharedState *sharedState)> PendingAliasBinding;
+ std::vector<PendingAliasBinding> pendingAliasBindings;
};
struct QQmlObjectCreatorRecursionWatcher
diff --git a/src/qml/qml/qqmlproperty.cpp b/src/qml/qml/qqmlproperty.cpp
index 50d9f13049..6be0995ac6 100644
--- a/src/qml/qml/qqmlproperty.cpp
+++ b/src/qml/qml/qqmlproperty.cpp
@@ -875,6 +875,7 @@ void QQmlPropertyPrivate::findAliasTarget(QObject *object, QQmlPropertyIndex bin
void QQmlPropertyPrivate::setBinding(QQmlAbstractBinding *binding, BindingFlags flags, QQmlPropertyData::WriteFlags writeFlags)
{
Q_ASSERT(binding);
+ Q_ASSERT(binding->targetObject());
QObject *object = binding->targetObject();
const QQmlPropertyIndex index = binding->targetPropertyIndex();
diff --git a/tests/auto/qml/qqmllanguage/data/alias.16.qml b/tests/auto/qml/qqmllanguage/data/alias.16.qml
new file mode 100644
index 0000000000..4637aec58f
--- /dev/null
+++ b/tests/auto/qml/qqmllanguage/data/alias.16.qml
@@ -0,0 +1,15 @@
+import QtQuick 2.0
+import QtQuick.Window 2.0
+
+Window {
+ visible: true
+
+ property alias list: repeater.model
+
+ list: ["A", "B", "C"]
+
+ Repeater {
+ id: repeater
+ }
+}
+
diff --git a/tests/auto/qml/qqmllanguage/tst_qqmllanguage.cpp b/tests/auto/qml/qqmllanguage/tst_qqmllanguage.cpp
index 52decf9e11..c3b0fce35f 100644
--- a/tests/auto/qml/qqmllanguage/tst_qqmllanguage.cpp
+++ b/tests/auto/qml/qqmllanguage/tst_qqmllanguage.cpp
@@ -1872,6 +1872,16 @@ void tst_qqmllanguage::aliasProperties()
QVERIFY(subObject->property("success").toBool());
}
+
+ // Alias to sub-object with binding (QTBUG-57041)
+ {
+ // This is shold *not* crash.
+ QQmlComponent component(&engine, testFileUrl("alias.16.qml"));
+ VERIFY_ERRORS(0);
+
+ QScopedPointer<QObject> object(component.create());
+ QVERIFY(!object.isNull());
+ }
}
// QTBUG-13374 Test that alias properties and signals can coexist