Add support for more sequence types

This commit adds support for more sequence types by adding a sequence
wrapper.  This class enables conversion between v8::Array and C++
sequences of various types (currently just QList<int>, QList<qreal>,
QList<bool>, QList<QString>, QList<QUrl> and QStringList), but more
types can be added later if required).

When a JavaScript object is created from such a sequence, its
prototype object is set to the v8::Array prototype object.  The
indexed setter, indexed getter, length and toString methods are
implemented directly or in terms of the underlying sequence resource.

Note that currently, sequences of ValueTypes are NOT supported, due to
the fact that operations like:
     someObj.someValueTypeSequence[i].x = 5;
would not behave as required.

Task-number: QTBUG-20826
Task-number: QTBUG-21770
Change-Id: I36deb448fb0e87a32084a900e70a2604ff369309
Reviewed-by: Chris Adams <christopher.adams@nokia.com>

24 files changed, 1915 insertions, 21 deletions

diff --git a/doc/src/declarative/extending.qdoc b/doc/src/declarative/extending.qdoc
index 0563f65cc0..bed31ab88a 100644
--- a/doc/src/declarative/extending.qdoc
+++ b/doc/src/declarative/extending.qdoc
@@ -236,6 +236,36 @@ The \c guest property declaration looks like this:
 \l {Extending QML - Object and List Property Types Example} shows the complete
 code used to create the \c BirthdayParty type.
 
+\section1 Sequence Types
+
+Certain C++ sequence types are supported transparently in QML as JavaScript Array types.
+In particular, QML currently supports:
+\list
+  \o \c {QList<int>}
+  \o \c {QList<qreal>}
+  \o \c {QList<bool>}
+  \o \c {QList<QString>}
+  \o \c {QList<QUrl>}
+\endlist
+
+These sequence types are implemented directly in terms of the underlying C++ sequence.
+There are two ways in which such sequences can be exposed to QML: as a Q_PROPERTY of
+the given sequence type; or as the return type of a Q_INVOKABLE method.  There are some
+differences in the way these are implemented, which are important to note.
+
+If the sequence is exposed as a Q_PROPERTY, accessing any value in the sequence by index
+will cause the sequence data to be read from the QObject's property, then a read to occur.
+Similarly, modifying any value in the sequence will cause the sequence data to be read,
+and then the modification will be performed and the modified sequence will be written back
+to the QObject's property.
+
+If the sequence is returned from a Q_INVOKABLE function, access and mutation is much cheaper,
+as no QObject property read or write occurs; instead, the C++ sequence data is accessed and
+modified directly.
+
+Other sequence types are not supported transparently, and instead an instance of any other
+sequence type will be passed between QML and C++ as an opaque QVariantList.
+
 \section1 Inheritance and Coercion
 
 \snippet examples/declarative/cppextensions/referenceexamples/coercion/example.qml 0
diff --git a/src/declarative/qml/qdeclarativevaluetype.cpp b/src/declarative/qml/qdeclarativevaluetype.cpp
index 9f43d0ef72..9a941e63f9 100644
--- a/src/declarative/qml/qdeclarativevaluetype.cpp
+++ b/src/declarative/qml/qdeclarativevaluetype.cpp
@@ -92,7 +92,7 @@ QDeclarativeValueTypeFactory::~QDeclarativeValueTypeFactory()
 
 bool QDeclarativeValueTypeFactory::isValueType(int idx)
 {
-    if ((uint)idx < QVariant::UserType)
+    if ((uint)idx < QVariant::UserType && (uint)idx != QVariant::StringList)
         return true;
     return false;
 }
diff --git a/src/declarative/qml/v8/qv8engine.cpp b/src/declarative/qml/v8/qv8engine.cpp
index 62abbbe59b..d239f30734 100644
--- a/src/declarative/qml/v8/qv8engine.cpp
+++ b/src/declarative/qml/v8/qv8engine.cpp
@@ -45,6 +45,7 @@
 #include "qv8contextwrapper_p.h"
 #include "qv8valuetypewrapper_p.h"
 #include "qv8gccallback_p.h"
+#include "qv8sequencewrapper_p.h"
 #include "qv8include_p.h"
 #include "../../../3rdparty/javascriptcore/DateMath.h"
 
@@ -82,6 +83,7 @@ static bool ObjectComparisonCallback(v8::Local<v8::Object> lhs, v8::Local<v8::Ob
 
         switch (lhst) {
         case QV8ObjectResource::ValueTypeType:
+            // a value type might be equal to a variant or another value type
             if (rhst == QV8ObjectResource::ValueTypeType) {
                 return lhsr->engine->valueTypeWrapper()->isEqual(lhsr, lhsr->engine->valueTypeWrapper()->toVariant(rhsr));
             } else if (rhst == QV8ObjectResource::VariantType) {
@@ -89,6 +91,7 @@ static bool ObjectComparisonCallback(v8::Local<v8::Object> lhs, v8::Local<v8::Ob
             }
             break;
         case QV8ObjectResource::VariantType:
+            // a variant might be equal to a value type or other variant.
             if (rhst == QV8ObjectResource::VariantType) {
                 return lhsr->engine->variantWrapper()->toVariant(lhsr) == 
                        lhsr->engine->variantWrapper()->toVariant(rhsr);
@@ -96,6 +99,12 @@ static bool ObjectComparisonCallback(v8::Local<v8::Object> lhs, v8::Local<v8::Ob
                 return rhsr->engine->valueTypeWrapper()->isEqual(rhsr, rhsr->engine->variantWrapper()->toVariant(lhsr));
             }
             break;
+        case QV8ObjectResource::SequenceType:
+            // a sequence might be equal to itself.
+            if (rhst == QV8ObjectResource::SequenceType) {
+                return lhsr->engine->sequenceWrapper()->isEqual(lhsr, rhsr);
+            }
+            break;
         default:
             break;
         }
@@ -135,6 +144,7 @@ QV8Engine::QV8Engine(QJSEngine* qq, QJSEngine::ContextOwnership ownership)
     m_listWrapper.init(this);
     m_variantWrapper.init(this);
     m_valueTypeWrapper.init(this);
+    m_sequenceWrapper.init(this);
 
     QV8GCCallback::registerGcPrologueCallback();
 
@@ -164,6 +174,7 @@ QV8Engine::~QV8Engine()
     invalidateAllValues();
     clearExceptions();
 
+    m_sequenceWrapper.destroy();
     m_valueTypeWrapper.destroy();
     m_variantWrapper.destroy();
     m_listWrapper.destroy();
@@ -226,25 +237,33 @@ QVariant QV8Engine::toVariant(v8::Handle<v8::Value> value, int typeHint)
                 return m_variantWrapper.toVariant(r);
             case QV8ObjectResource::ValueTypeType:
                 return m_valueTypeWrapper.toVariant(r);
+            case QV8ObjectResource::SequenceType:
+                return m_sequenceWrapper.toVariant(r);
             }
         }
     }
 
-    if (typeHint == qMetaTypeId<QList<QObject *> >() && value->IsArray()) {
+    if (value->IsArray()) {
         v8::Handle<v8::Array> array = v8::Handle<v8::Array>::Cast(value);
-
-        QList<QObject *> list;
-        uint32_t length = array->Length();
-        for (uint32_t ii = 0; ii < length; ++ii) {
-            v8::Local<v8::Value> arrayItem = array->Get(ii);
-            if (arrayItem->IsObject()) {
-                list << toQObject(arrayItem->ToObject());
-            } else {
-                list << 0;
+        if (typeHint == qMetaTypeId<QList<QObject *> >()) {
+            QList<QObject *> list;
+            uint32_t length = array->Length();
+            for (uint32_t ii = 0; ii < length; ++ii) {
+                v8::Local<v8::Value> arrayItem = array->Get(ii);
+                if (arrayItem->IsObject()) {
+                    list << toQObject(arrayItem->ToObject());
+                } else {
+                    list << 0;
+                }
             }
+
+            return qVariantFromValue<QList<QObject*> >(list);
         }
 
-        return qVariantFromValue<QList<QObject*> >(list);
+        bool succeeded = false;
+        QVariant retn = m_sequenceWrapper.toVariant(array, typeHint, &succeeded);
+        if (succeeded)
+            return retn;
     }
 
     return toBasicVariant(value);
@@ -325,8 +344,14 @@ v8::Handle<v8::Value> QV8Engine::fromVariant(const QVariant &variant)
             case QMetaType::QObjectStar:
             case QMetaType::QWidgetStar:
                 return newQObject(*reinterpret_cast<QObject* const *>(ptr));
-            case QMetaType::QStringList: 
+            case QMetaType::QStringList:
+                {
+                bool succeeded = false;
+                v8::Handle<v8::Value> retn = m_sequenceWrapper.fromVariant(variant, &succeeded);
+                if (succeeded)
+                    return retn;
                 return arrayFromStringList(this, *reinterpret_cast<const QStringList *>(ptr));
+                }
             case QMetaType::QVariantList:
                 return arrayFromVariantList(this, *reinterpret_cast<const QVariantList *>(ptr));
             case QMetaType::QVariantMap:
@@ -369,6 +394,11 @@ v8::Handle<v8::Value> QV8Engine::fromVariant(const QVariant &variant)
         QObject *obj = QDeclarativeMetaType::toQObject(variant, &objOk);
         if (objOk) 
             return newQObject(obj);
+
+        bool succeeded = false;
+        v8::Handle<v8::Value> retn = m_sequenceWrapper.fromVariant(variant, &succeeded);
+        if (succeeded)
+            return retn;
     }
 
     // XXX TODO: To be compatible, we still need to handle:
@@ -459,7 +489,6 @@ QVariant QV8Engine::toBasicVariant(v8::Handle<v8::Value> value)
         int length = array->Length();
         for (int ii = 0; ii < length; ++ii)
             rv << toVariant(array->Get(ii), -1);
-
         return rv;
     }
     if (!value->IsFunction()) {
diff --git a/src/declarative/qml/v8/qv8engine_p.h b/src/declarative/qml/v8/qv8engine_p.h
index 79a77c2ac1..92e6123ca1 100644
--- a/src/declarative/qml/v8/qv8engine_p.h
+++ b/src/declarative/qml/v8/qv8engine_p.h
@@ -77,6 +77,7 @@
 #include "qv8listwrapper_p.h"
 #include "qv8variantwrapper_p.h"
 #include "qv8valuetypewrapper_p.h"
+#include "qv8sequencewrapper_p.h"
 
 QT_BEGIN_NAMESPACE
 
@@ -136,7 +137,8 @@ public:
     enum ResourceType { ContextType, QObjectType, TypeType, ListType, VariantType, 
                         ValueTypeType, XMLHttpRequestType, DOMNodeType, SQLDatabaseType,
                         ListModelType, Context2DType, Context2DStyleType, Context2DPixelArrayType, 
-                        ParticleDataType, SignalHandlerType, IncubatorType, VisualDataItemType };
+                        ParticleDataType, SignalHandlerType, IncubatorType, VisualDataItemType,
+                        SequenceType };
     virtual ResourceType resourceType() const = 0;
 
     QV8Engine *engine;
@@ -279,6 +281,7 @@ public:
     QV8ListWrapper *listWrapper() { return &m_listWrapper; }
     QV8VariantWrapper *variantWrapper() { return &m_variantWrapper; }
     QV8ValueTypeWrapper *valueTypeWrapper() { return &m_valueTypeWrapper; }
+    QV8SequenceWrapper *sequenceWrapper() { return &m_sequenceWrapper; }
 
     void *xmlHttpRequestData() { return m_xmlHttpRequestData; }
     void *sqlDatabaseData() { return m_sqlDatabaseData; }
@@ -326,6 +329,9 @@ public:
     inline v8::Handle<v8::Value> newValueType(QObject *, int coreIndex, QDeclarativeValueType *);
     inline v8::Handle<v8::Value> newValueType(const QVariant &, QDeclarativeValueType *);
 
+    // Create a new sequence type object
+    inline v8::Handle<v8::Value> newSequence(int sequenceType, QObject *, int coreIndex, bool *succeeded);
+
     // Create a new QVariant object.  This doesn't examine the type of the variant, but always returns
     // a QVariant wrapper
     inline v8::Handle<v8::Value> newQVariant(const QVariant &);
@@ -415,6 +421,7 @@ protected:
     QV8ListWrapper m_listWrapper;
     QV8VariantWrapper m_variantWrapper;
     QV8ValueTypeWrapper m_valueTypeWrapper;
+    QV8SequenceWrapper m_sequenceWrapper;
 
     v8::Persistent<v8::Function> m_getOwnPropertyNames;
     v8::Persistent<v8::Function> m_freezeObject;
@@ -545,6 +552,11 @@ v8::Handle<v8::Value> QV8Engine::newValueType(const QVariant &value, QDeclarativ
     return m_valueTypeWrapper.newValueType(value, type);
 }
 
+v8::Handle<v8::Value> QV8Engine::newSequence(int sequenceType, QObject *object, int property, bool *succeeded)
+{
+    return m_sequenceWrapper.newSequence(sequenceType, object, property, succeeded);
+}
+
 // XXX Can this be made more optimal?  It is called prior to resolving each and every 
 // unqualified name in QV8ContextWrapper.
 bool QV8Engine::startsWithUpper(v8::Handle<v8::String> string)
diff --git a/src/declarative/qml/v8/qv8qobjectwrapper.cpp b/src/declarative/qml/v8/qv8qobjectwrapper.cpp
index c2ee429d5c..40cb021512 100644
--- a/src/declarative/qml/v8/qv8qobjectwrapper.cpp
+++ b/src/declarative/qml/v8/qv8qobjectwrapper.cpp
@@ -385,7 +385,13 @@ static v8::Handle<v8::Value> LoadProperty(QV8Engine *engine, QObject *object,
         QDeclarativeValueType *valueType = ep->valueTypes[property.propType];
         if (valueType)
             return engine->newValueType(object, property.coreIndex, valueType);
-    } 
+    } else {
+        // see if it's a sequence type
+        bool succeeded = false;
+        v8::Handle<v8::Value> retn = engine->newSequence(property.propType, object, property.coreIndex, &succeeded);
+        if (succeeded)
+            return retn;
+    }
 
     QVariant var = object->metaObject()->property(property.coreIndex).read(object);
     return engine->fromVariant(var);
@@ -425,13 +431,18 @@ static v8::Handle<v8::Value> LoadPropertyDirect(QV8Engine *engine, QObject *obje
         void *args[] = { &handle, 0 };
         object->qt_metacall(QMetaObject::ReadProperty, property.coreIndex, args); 
         return handle.toHandle();
-    } else if (QDeclarativeValueTypeFactory::isValueType((uint)property.propType)
-               && engine->engine()) {
+    } else if (engine->engine() && QDeclarativeValueTypeFactory::isValueType((uint)property.propType)) {
         QDeclarativeEnginePrivate *ep = QDeclarativeEnginePrivate::get(engine->engine());
         QDeclarativeValueType *valueType = ep->valueTypes[property.propType];
         if (valueType)
             return engine->newValueType(object, property.coreIndex, valueType);
-    } 
+    } else {
+        // see if it's a sequence type
+        bool success = false;
+        v8::Handle<v8::Value> retn = engine->newSequence(property.propType, object, property.coreIndex, &success);
+        if (success)
+            return retn;
+    }
 
     QVariant var = object->metaObject()->property(property.coreIndex).read(object);
     return engine->fromVariant(var);
@@ -601,7 +612,6 @@ static inline void StoreProperty(QV8Engine *engine, QObject *object, QDeclarativ
             v = engine->toVariant(value, property->propType);
 
         QDeclarativeContextData *context = engine->callingContext();
-
         if (!QDeclarativePropertyPrivate::write(object, *property, v, context)) {
             const char *valueType = 0;
             if (v.userType() == QVariant::Invalid) valueType = "null";
diff --git a/src/declarative/qml/v8/qv8sequencewrapper.cpp b/src/declarative/qml/v8/qv8sequencewrapper.cpp
new file mode 100644
index 0000000000..61fb993d8c
--- /dev/null
+++ b/src/declarative/qml/v8/qv8sequencewrapper.cpp
@@ -0,0 +1,273 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtDeclarative module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** This file may be used under the terms of the GNU Lesser General Public
+** License version 2.1 as published by the Free Software Foundation and
+** appearing in the file LICENSE.LGPL included in the packaging of this
+** file. Please review the following information to ensure the GNU Lesser
+** General Public License version 2.1 requirements will be met:
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtDeclarative/qdeclarative.h>
+
+#include "qv8sequencewrapper_p.h"
+#include "qv8sequencewrapper_p_p.h"
+#include "qv8engine_p.h"
+
+QT_BEGIN_NAMESPACE
+
+QV8SequenceWrapper::QV8SequenceWrapper()
+    : m_engine(0)
+{
+}
+
+QV8SequenceWrapper::~QV8SequenceWrapper()
+{
+}
+
+#define REGISTER_QML_SEQUENCE_METATYPE(unused, unused2, SequenceType, unused3) qRegisterMetaType<SequenceType>();
+void QV8SequenceWrapper::init(QV8Engine *engine)
+{
+    FOREACH_QML_SEQUENCE_TYPE(REGISTER_QML_SEQUENCE_METATYPE)
+
+    m_engine = engine;
+    m_toString = qPersistentNew<v8::Function>(v8::FunctionTemplate::New(ToString)->GetFunction());
+    m_valueOf = qPersistentNew<v8::Function>(v8::FunctionTemplate::New(ValueOf)->GetFunction());
+    v8::Local<v8::FunctionTemplate> ft = v8::FunctionTemplate::New();
+    ft->InstanceTemplate()->SetFallbackPropertyHandler(Getter, Setter);
+    ft->InstanceTemplate()->SetIndexedPropertyHandler(IndexedGetter, IndexedSetter, 0, 0, IndexedEnumerator);
+    ft->InstanceTemplate()->SetAccessor(v8::String::New("length"), LengthGetter, 0,
+                                        v8::Handle<v8::Value>(), v8::DEFAULT,
+                                        v8::PropertyAttribute(v8::ReadOnly | v8::DontDelete | v8::DontEnum));
+    ft->InstanceTemplate()->SetAccessor(v8::String::New("toString"), ToStringGetter, 0,
+                                        m_toString, v8::DEFAULT,
+                                        v8::PropertyAttribute(v8::ReadOnly | v8::DontDelete | v8::DontEnum));
+    ft->InstanceTemplate()->SetAccessor(v8::String::New("valueOf"), ValueOfGetter, 0,
+                                        m_valueOf, v8::DEFAULT,
+                                        v8::PropertyAttribute(v8::ReadOnly | v8::DontDelete | v8::DontEnum));
+    ft->InstanceTemplate()->SetHasExternalResource(true);
+    ft->InstanceTemplate()->MarkAsUseUserObjectComparison();
+    m_constructor = qPersistentNew<v8::Function>(ft->GetFunction());
+}
+#undef REGISTER_QML_SEQUENCE_METATYPE
+
+void QV8SequenceWrapper::destroy()
+{
+    qPersistentDispose(m_toString);
+    qPersistentDispose(m_valueOf);
+    qPersistentDispose(m_constructor);
+}
+
+bool QV8SequenceWrapper::isEqual(QV8ObjectResource *lhs, const QVariant &rhs)
+{
+    Q_ASSERT(lhs->resourceType() == QV8ObjectResource::SequenceType);
+    QV8SequenceResource *r = static_cast<QV8SequenceResource *>(lhs);
+    Q_ASSERT(r);
+    return r->isEqual(rhs);
+}
+
+bool QV8SequenceWrapper::isEqual(QV8ObjectResource *lhs, QV8ObjectResource *rhs)
+{
+    QV8SequenceResource *lr = static_cast<QV8SequenceResource *>(lhs);
+    QV8SequenceResource *rr = static_cast<QV8SequenceResource *>(rhs);
+    Q_ASSERT(lr && rr);
+    return lr->isEqual(rr);
+}
+
+quint32 QV8SequenceWrapper::sequenceLength(QV8ObjectResource *r)
+{
+    Q_ASSERT(r->resourceType() == QV8ObjectResource::SequenceType);
+    QV8SequenceResource *sr = static_cast<QV8SequenceResource *>(r);
+    Q_ASSERT(sr);
+    return sr->lengthGetter();
+}
+
+#define NEW_REFERENCE_SEQUENCE(ElementType, ElementTypeName, SequenceType, unused) \
+    if (sequenceType == qMetaTypeId<SequenceType>()) { \
+        r = new QV8##ElementTypeName##SequenceResource(m_engine, object, propertyIndex); \
+    } else
+
+v8::Local<v8::Object> QV8SequenceWrapper::newSequence(int sequenceType, QObject *object, int propertyIndex, bool *succeeded)
+{
+    // This function is called when the property is a QObject Q_PROPERTY of
+    // the given sequence type.  Internally we store a typed-sequence
+    // (as well as object ptr + property index for updated-read and write-back)
+    // and so access/mutate avoids variant conversion.
+    *succeeded = true;
+    QV8SequenceResource *r = 0;
+    FOREACH_QML_SEQUENCE_TYPE(NEW_REFERENCE_SEQUENCE) { /* else */ *succeeded = false; return v8::Local<v8::Object>(); }
+
+    v8::Local<v8::Object> rv = m_constructor->NewInstance();
+    rv->SetExternalResource(r);
+    rv->SetPrototype(v8::Array::New(1)->GetPrototype());
+    return rv;
+}
+#undef NEW_REFERENCE_SEQUENCE
+
+#define NEW_COPY_SEQUENCE(ElementType, ElementTypeName, SequenceType, unused) \
+    if (sequenceType == qMetaTypeId<SequenceType>()) { \
+        r = new QV8##ElementTypeName##SequenceResource(m_engine, v.value<SequenceType>()); \
+    } else
+
+v8::Local<v8::Object> QV8SequenceWrapper::fromVariant(const QVariant& v, bool *succeeded)
+{
+    // This function is called when assigning a sequence value to a normal JS var
+    // in a JS block.  Internally, we store a sequence of the specified type.
+    // Access and mutation is extremely fast since it will not need to modify any
+    // QObject property.
+    int sequenceType = v.userType();
+    *succeeded = true;
+    QV8SequenceResource *r = 0;
+    FOREACH_QML_SEQUENCE_TYPE(NEW_COPY_SEQUENCE) { /* else */ *succeeded = false; return v8::Local<v8::Object>(); }
+
+    v8::Local<v8::Object> rv = m_constructor->NewInstance();
+    rv->SetExternalResource(r);
+    rv->SetPrototype(v8::Array::New(1)->GetPrototype());
+    return rv;
+}
+#undef NEW_COPY_SEQUENCE
+
+QVariant QV8SequenceWrapper::toVariant(QV8ObjectResource *r)
+{
+    Q_ASSERT(r->resourceType() == QV8ObjectResource::SequenceType);
+    QV8SequenceResource *resource = static_cast<QV8SequenceResource *>(r);
+    return resource->toVariant();
+}
+
+#define SEQUENCE_TO_VARIANT(ElementType, ElementTypeName, SequenceType, unused) \
+    if (typeHint == qMetaTypeId<SequenceType>()) { \
+        return QV8##ElementTypeName##SequenceResource::toVariant(m_engine, array, length, succeeded); \
+    } else
+
+QVariant QV8SequenceWrapper::toVariant(v8::Handle<v8::Array> array, int typeHint, bool *succeeded)
+{
+    *succeeded = true;
+    QV8SequenceResource *sr = static_cast<QV8SequenceResource *>(array->GetExternalResource());
+    if (sr)
+        return sr->toVariant();
+
+    // if no typehint is given it's just a sequence of arbitrary variants
+    uint32_t length = array->Length();
+    if (typeHint == -1) {
+        QVariantList list;
+        for (uint32_t ii = 0; ii < length; ++ii) {
+            v8::Local<v8::Value> arrayItem = array->Get(ii);
+            list.append(m_engine->toVariant(arrayItem, -1));
+        }
+
+        return list;
+    }
+
+    // otherwise, try to build a sequence of the correct type
+    FOREACH_QML_SEQUENCE_TYPE(SEQUENCE_TO_VARIANT) { /* else */ *succeeded = false; return QVariant(); }
+}
+#undef SEQUENCE_TO_VARIANT
+
+v8::Handle<v8::Value> QV8SequenceWrapper::IndexedSetter(quint32 index, v8::Local<v8::Value> value, const v8::AccessorInfo &info)
+{
+    QV8SequenceResource *sr = v8_resource_cast<QV8SequenceResource>(info.This());
+    Q_ASSERT(sr);
+    return sr->indexedSetter(index, value);
+}
+
+v8::Handle<v8::Value> QV8SequenceWrapper::IndexedGetter(quint32 index, const v8::AccessorInfo &info)
+{
+    QV8SequenceResource *sr = v8_resource_cast<QV8SequenceResource>(info.This());
+    Q_ASSERT(sr);
+    return sr->indexedGetter(index);
+}
+
+v8::Handle<v8::Array> QV8SequenceWrapper::IndexedEnumerator(const v8::AccessorInfo &info)
+{
+    QV8SequenceResource *sr = v8_resource_cast<QV8SequenceResource>(info.This());
+    Q_ASSERT(sr);
+    return sr->indexedEnumerator();
+}
+
+v8::Handle<v8::Value> QV8SequenceWrapper::LengthGetter(v8::Local<v8::String> property, const v8::AccessorInfo &info)
+{
+    Q_UNUSED(property);
+    QV8SequenceResource *sr = v8_resource_cast<QV8SequenceResource>(info.This());
+    Q_ASSERT(sr);
+    return v8::Integer::NewFromUnsigned(sr->lengthGetter());
+}
+
+v8::Handle<v8::Value> QV8SequenceWrapper::ToStringGetter(v8::Local<v8::String> property, const v8::AccessorInfo &info)
+{
+    Q_UNUSED(property);
+    return info.Data();
+}
+
+v8::Handle<v8::Value> QV8SequenceWrapper::ValueOfGetter(v8::Local<v8::String> property,
+                                                               const v8::AccessorInfo &info)
+{
+    Q_UNUSED(property);
+    return info.Data();
+}
+
+v8::Handle<v8::Value> QV8SequenceWrapper::ToString(const v8::Arguments &args)
+{
+    QV8SequenceResource *sr = v8_resource_cast<QV8SequenceResource>(args.This());
+    Q_ASSERT(sr);
+    return sr->toString();
+}
+
+v8::Handle<v8::Value> QV8SequenceWrapper::ValueOf(const v8::Arguments &args)
+{
+    QV8SequenceResource *sr = v8_resource_cast<QV8SequenceResource>(args.This());
+    Q_ASSERT(sr);
+    v8::Handle<v8::Value> tostringValue = sr->toString();
+    if (!tostringValue.IsEmpty())
+        return tostringValue;
+    return v8::Integer::NewFromUnsigned(sr->lengthGetter());
+}
+
+v8::Handle<v8::Value> QV8SequenceWrapper::Getter(v8::Local<v8::String> property,
+                                                    const v8::AccessorInfo &info)
+{
+    Q_UNUSED(property);
+    Q_UNUSED(info);
+    return v8::Handle<v8::Value>();
+}
+
+v8::Handle<v8::Value> QV8SequenceWrapper::Setter(v8::Local<v8::String> property,
+                                                    v8::Local<v8::Value> value,
+                                                    const v8::AccessorInfo &info)
+{
+    Q_UNUSED(property);
+    Q_UNUSED(info);
+    return value;
+}
+
+QT_END_NAMESPACE
diff --git a/src/declarative/qml/v8/qv8sequencewrapper_p.h b/src/declarative/qml/v8/qv8sequencewrapper_p.h
new file mode 100644
index 0000000000..da0f7eacca
--- /dev/null
+++ b/src/declarative/qml/v8/qv8sequencewrapper_p.h
@@ -0,0 +1,104 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtDeclarative module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** This file may be used under the terms of the GNU Lesser General Public
+** License version 2.1 as published by the Free Software Foundation and
+** appearing in the file LICENSE.LGPL included in the packaging of this
+** file. Please review the following information to ensure the GNU Lesser
+** General Public License version 2.1 requirements will be met:
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QV8SEQUENCEWRAPPER_P_H
+#define QV8SEQUENCEWRAPPER_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <QtCore/qglobal.h>
+#include <QtCore/qvariant.h>
+#include <private/qv8_p.h>
+
+QT_BEGIN_NAMESPACE
+
+class QV8Engine;
+class QV8ObjectResource;
+class QV8SequenceWrapper
+{
+public:
+    QV8SequenceWrapper();
+    ~QV8SequenceWrapper();
+
+    void init(QV8Engine *);
+    void destroy();
+
+    bool isEqual(QV8ObjectResource *lhs, const QVariant &rhs);
+    bool isEqual(QV8ObjectResource *lhs, QV8ObjectResource *rhs);
+    quint32 sequenceLength(QV8ObjectResource *);
+
+    v8::Local<v8::Object> newSequence(int sequenceTypeId, QObject *object, int propertyIndex, bool *succeeded);
+    v8::Local<v8::Object> fromVariant(const QVariant& v, bool *succeeded);
+    QVariant toVariant(QV8ObjectResource *);
+    QVariant toVariant(v8::Handle<v8::Array> array, int typeHint, bool *succeeded);
+
+private:
+    QV8Engine *m_engine;
+
+    v8::Persistent<v8::Function> m_constructor;
+    v8::Persistent<v8::Function> m_toString;
+    v8::Persistent<v8::Function> m_valueOf;
+
+    static v8::Handle<v8::Value> IndexedGetter(quint32 index, const v8::AccessorInfo &info);
+    static v8::Handle<v8::Value> IndexedSetter(quint32 index, v8::Local<v8::Value> value, const v8::AccessorInfo &info);
+    static v8::Handle<v8::Array> IndexedEnumerator(const v8::AccessorInfo &info);
+    static v8::Handle<v8::Value> LengthGetter(v8::Local<v8::String> property, const v8::AccessorInfo &info);
+    static v8::Handle<v8::Value> ToStringGetter(v8::Local<v8::String> property, const v8::AccessorInfo &info);
+    static v8::Handle<v8::Value> ToString(const v8::Arguments &args);
+    static v8::Handle<v8::Value> ValueOfGetter(v8::Local<v8::String> property, const v8::AccessorInfo &info);
+    static v8::Handle<v8::Value> ValueOf(const v8::Arguments &args);
+    static v8::Handle<v8::Value> Getter(v8::Local<v8::String> property, const v8::AccessorInfo &info);
+    static v8::Handle<v8::Value> Setter(v8::Local<v8::String> property, v8::Local<v8::Value> value, const v8::AccessorInfo &info);
+};
+
+
+QT_END_NAMESPACE
+
+#endif // QV8SEQUENCEWRAPPER_P_H
diff --git a/src/declarative/qml/v8/qv8sequencewrapper_p_p.h b/src/declarative/qml/v8/qv8sequencewrapper_p_p.h
new file mode 100644
index 0000000000..f609aff223
--- /dev/null
+++ b/src/declarative/qml/v8/qv8sequencewrapper_p_p.h
@@ -0,0 +1,387 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtDeclarative module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** This file may be used under the terms of the GNU Lesser General Public
+** License version 2.1 as published by the Free Software Foundation and
+** appearing in the file LICENSE.LGPL included in the packaging of this
+** file. Please review the following information to ensure the GNU Lesser
+** General Public License version 2.1 requirements will be met:
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QV8SEQUENCEWRAPPER_P_P_H
+#define QV8SEQUENCEWRAPPER_P_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <private/qdeclarativeengine_p.h>
+#include <private/qdeclarativemetatype_p.h>
+
+QT_BEGIN_NAMESPACE
+
+/*!
+  \internal
+  \class QV8SequenceResource
+  \brief The abstract base class of the external resource used in sequence type objects
+
+  Every sequence type object returned by QV8SequenceWrapper::fromVariant() or
+  QV8SequenceWrapper::newSequence() has a type-specific QV8SequenceResource which
+  contains the type name, the meta type ids of the sequence and sequence element
+  types, as well as either the sequence data (copy) or object pointer and property
+  index (reference) data associated with the sequence.
+ */
+class QV8SequenceResource : public QV8ObjectResource
+{
+    V8_RESOURCE_TYPE(SequenceType);
+
+public:
+    virtual ~QV8SequenceResource() {}
+
+    enum ObjectType { Reference, Copy };
+
+    virtual QVariant toVariant() = 0;
+    virtual bool isEqual(const QVariant &v) = 0;
+    virtual bool isEqual(const QV8SequenceResource *v) = 0;
+
+    virtual quint32 lengthGetter() = 0;
+    virtual v8::Handle<v8::Value> indexedSetter(quint32 index, v8::Handle<v8::Value> value) = 0;
+    virtual v8::Handle<v8::Value> indexedGetter(quint32 index) = 0;
+    virtual v8::Handle<v8::Array> indexedEnumerator() = 0;
+    virtual v8::Handle<v8::Value> toString() = 0;
+
+    ObjectType objectType;
+    QByteArray typeName;
+    int sequenceMetaTypeId;
+    int elementMetaTypeId;
+
+protected:
+    QV8SequenceResource(QV8Engine *engine, ObjectType type, const QByteArray &name, int sequenceId, int elementId)
+        : QV8ObjectResource(engine), objectType(type), typeName(name), sequenceMetaTypeId(sequenceId), elementMetaTypeId(elementId)
+    {
+    }
+};
+
+static int convertV8ValueToInt(QV8Engine *, v8::Handle<v8::Value> v)
+{
+    return v->Int32Value();
+}
+
+static v8::Handle<v8::Value> convertIntToV8Value(QV8Engine *, int v)
+{
+    return v8::Integer::New(v);
+}
+
+static QString convertIntToString(QV8Engine *, int v)
+{
+    return QString::number(v);
+}
+
+static qreal convertV8ValueToReal(QV8Engine *, v8::Handle<v8::Value> v)
+{
+    return v->NumberValue();
+}
+
+static v8::Handle<v8::Value> convertRealToV8Value(QV8Engine *, qreal v)
+{
+    return v8::Number::New(v);
+}
+
+static QString convertRealToString(QV8Engine *, qreal v)
+{
+    return QString::number(v);
+}
+
+static bool convertV8ValueToBool(QV8Engine *, v8::Handle<v8::Value> v)
+{
+    return v->BooleanValue();
+}
+
+static v8::Handle<v8::Value> convertBoolToV8Value(QV8Engine *, bool v)
+{
+    return v8::Boolean::New(v);
+}
+
+static QString convertBoolToString(QV8Engine *, bool v)
+{
+    if (v)
+        return QLatin1String("true");
+    return QLatin1String("false");
+}
+
+static QString convertV8ValueToString(QV8Engine *e, v8::Handle<v8::Value> v)
+{
+    return e->toString(v->ToString());
+}
+
+static v8::Handle<v8::Value> convertStringToV8Value(QV8Engine *e, const QString &v)
+{
+    return e->toString(v);
+}
+
+static QString convertStringToString(QV8Engine *, const QString &v)
+{
+    return v;
+}
+
+static QString convertV8ValueToQString(QV8Engine *e, v8::Handle<v8::Value> v)
+{
+    return e->toString(v->ToString());
+}
+
+static v8::Handle<v8::Value> convertQStringToV8Value(QV8Engine *e, const QString &v)
+{
+    return e->toString(v);
+}
+
+static QString convertQStringToString(QV8Engine *, const QString &v)
+{
+    return v;
+}
+
+static QUrl convertV8ValueToUrl(QV8Engine *e, v8::Handle<v8::Value> v)
+{
+    return QUrl(e->toString(v->ToString()));
+}
+
+static v8::Handle<v8::Value> convertUrlToV8Value(QV8Engine *e, const QUrl &v)
+{
+    return e->toString(v.toString());
+}
+
+static QString convertUrlToString(QV8Engine *, const QUrl &v)
+{
+    return v.toString();
+}
+
+
+/*
+  \internal
+  \class QV8<Type>SequenceResource
+  \brief The external resource used in sequence type objects
+
+  Every sequence type object returned by QV8SequenceWrapper::newSequence() has
+  a QV8<Type>SequenceResource which contains a property index and a pointer
+  to the object which contains the property.
+
+  Every sequence type object returned by QV8SequenceWrapper::fromVariant() has
+  a QV8<Type>SequenceResource which contains a copy of the sequence value.
+  Operations on the sequence are implemented directly in terms of that sequence data.
+
+  There exists one QV8<Type>SequenceResource instance for every JavaScript Object
+  (sequence) instance returned from QV8SequenceWrapper::newSequence() or
+  QV8SequenceWrapper::fromVariant().
+ */
+
+//  F(elementType, elementTypeName, sequenceType, defaultValue)
+#define FOREACH_QML_SEQUENCE_TYPE(F) \
+    F(int, Int, QList<int>, 0) \
+    F(qreal, Real, QList<qreal>, 0.0) \
+    F(bool, Bool, QList<bool>, false) \
+    F(QString, String, QList<QString>, QString()) \
+    F(QString, QString, QStringList, QString()) \
+    F(QUrl, Url, QList<QUrl>, QUrl())
+
+#define QML_SEQUENCE_TYPE_RESOURCE(SequenceElementType, SequenceElementTypeName, SequenceType, DefaultValue, ConversionToV8fn, ConversionFromV8fn, ToStringfn) \
+    Q_DECLARE_METATYPE(SequenceType) \
+    class QV8##SequenceElementTypeName##SequenceResource : public QV8SequenceResource { \
+        public:\
+            QV8##SequenceElementTypeName##SequenceResource(QV8Engine *engine, QObject *obj, int propIdx) \
+                : QV8SequenceResource(engine, QV8SequenceResource::Reference, #SequenceType, qMetaTypeId<SequenceType>(), qMetaTypeId<SequenceElementType>()) \
+                , object(obj), propertyIndex(propIdx) \
+            { \
+            } \
+            QV8##SequenceElementTypeName##SequenceResource(QV8Engine *engine, const SequenceType &value) \
+                : QV8SequenceResource(engine, QV8SequenceResource::Copy, #SequenceType, qMetaTypeId<SequenceType>(), qMetaTypeId<SequenceElementType>()) \
+                , object(0), propertyIndex(-1), c(value) \
+            { \
+            } \
+            ~QV8##SequenceElementTypeName##SequenceResource() \
+            { \
+            } \
+            static QVariant toVariant(QV8Engine *e, v8::Handle<v8::Array> array, uint32_t length, bool *succeeded) \
+            { \
+                SequenceType list; \
+                for (uint32_t ii = 0; ii < length; ++ii) { \
+                    list.append(ConversionFromV8fn(e, array->Get(ii))); \
+                } \
+                *succeeded = true; \
+                return QVariant::fromValue<SequenceType>(list); \
+            } \
+            QVariant toVariant() \
+            { \
+                if (objectType == QV8SequenceResource::Reference) { \
+                    if (!object) \
+                        return QVariant(); \
+                    void *a[] = { &c, 0 }; \
+                    QMetaObject::metacall(object, QMetaObject::ReadProperty, propertyIndex, a); \
+                } \
+                return QVariant::fromValue<SequenceType>(c); \
+            } \
+            bool isEqual(const QVariant &v) \
+            { \
+                if (objectType == QV8SequenceResource::Reference) { \
+                    if (!object) \
+                        return false; \
+                    void *a[] = { &c, 0 }; \
+                    QMetaObject::metacall(object, QMetaObject::ReadProperty, propertyIndex, a); \
+                } \
+                return (c == v.value<SequenceType>()); \
+            } \
+            bool isEqual(const QV8SequenceResource *v) \
+            { \
+                /* Note: two different sequences can never be equal (even if they  */ \
+                /* contain the same elements in the same order) in order to        */ \
+                /* maintain JavaScript semantics.  However, if they both reference */ \
+                /* the same QObject+propertyIndex, they are equal.                 */ \
+                if (objectType == QV8SequenceResource::Reference && v->objectType == QV8SequenceResource::Reference) { \
+                    if (sequenceMetaTypeId == v->sequenceMetaTypeId) { \
+                        const QV8##SequenceElementTypeName##SequenceResource *rhs = static_cast<const QV8##SequenceElementTypeName##SequenceResource *>(v); \
+                        return (object != 0 && object == rhs->object && propertyIndex == rhs->propertyIndex); \
+                    } \
+                } else if (objectType == QV8SequenceResource::Copy && v->objectType == QV8SequenceResource::Copy) { \
+                    if (sequenceMetaTypeId == v->sequenceMetaTypeId) { \
+                        const QV8##SequenceElementTypeName##SequenceResource *rhs = static_cast<const QV8##SequenceElementTypeName##SequenceResource *>(v); \
+                        return (this == rhs); \
+                    } \
+                } \
+                return false; \
+            } \
+            quint32 lengthGetter() \
+            { \
+                if (objectType == QV8SequenceResource::Reference) { \
+                    if (!object) \
+                        return 0; \
+                    void *a[] = { &c, 0 }; \
+                    QMetaObject::metacall(object, QMetaObject::ReadProperty, propertyIndex, a); \
+                } \
+                return c.count(); \
+            } \
+            v8::Handle<v8::Value> indexedSetter(quint32 index, v8::Handle<v8::Value> value) \
+            { \
+                if (objectType == QV8SequenceResource::Reference) { \
+                    if (!object) \
+                        return v8::Undefined(); \
+                    void *a[] = { &c, 0 }; \
+                    QMetaObject::metacall(object, QMetaObject::ReadProperty, propertyIndex, a); \
+                } \
+                /* modify the sequence */ \
+                SequenceElementType elementValue = ConversionFromV8fn(engine, value); \
+                quint32 count = c.count(); \
+                if (index == count) { \
+                    c.append(elementValue); \
+                } else if (index < count) { \
+                    c[index] = elementValue; \
+                } else { \
+                    /* according to ECMA262r3 we need to insert */ \
+                    /* the value at the given index, increasing length to index+1. */ \
+                    while (index > count++) { \
+                        c.append(DefaultValue); \
+                    } \
+                    c.append(elementValue); \
+                } \
+                if (objectType == QV8SequenceResource::Reference) { \
+                    /* write back.  already checked that object is non-null, so skip that check here. */ \
+                    int status = -1; \
+                    QDeclarativePropertyPrivate::WriteFlags flags = QDeclarativePropertyPrivate::DontRemoveBinding; \
+                    void *a[] = { &c, 0, &status, &flags }; \
+                    QMetaObject::metacall(object, QMetaObject::WriteProperty, propertyIndex, a); \
+                } \
+                return value; \
+            } \
+            v8::Handle<v8::Value> indexedGetter(quint32 index) \
+            { \
+                if (objectType == QV8SequenceResource::Reference) { \
+                    if (!object) \
+                        return v8::Undefined(); \
+                    void *a[] = { &c, 0 }; \
+                    QMetaObject::metacall(object, QMetaObject::ReadProperty, propertyIndex, a); \
+                } \
+                quint32 count = c.count(); \
+                if (index < count) \
+                    return ConversionToV8fn(engine, c.at(index)); \
+                return v8::Undefined(); \
+            } \
+            v8::Handle<v8::Array> indexedEnumerator() \
+            { \
+                if (objectType == QV8SequenceResource::Reference) { \
+                    if (!object) \
+                        return v8::Handle<v8::Array>(); \
+                    void *a[] = { &c, 0 }; \
+                    QMetaObject::metacall(object, QMetaObject::ReadProperty, propertyIndex, a); \
+                } \
+                quint32 count = c.count(); \
+                v8::Local<v8::Array> retn = v8::Array::New(count); \
+                for (quint32 i = 0; i < count; ++i) { \
+                    retn->Set(i, v8::Integer::NewFromUnsigned(i)); \
+                } \
+                return retn; \
+            } \
+            v8::Handle<v8::Value> toString() \
+            { \
+                if (objectType == QV8SequenceResource::Reference) { \
+                    if (!object) \
+                        return v8::Undefined(); \
+                    void *a[] = { &c, 0 }; \
+                    QMetaObject::metacall(object, QMetaObject::ReadProperty, propertyIndex, a); \
+                } \
+                QString str; \
+                quint32 count = c.count(); \
+                for (quint32 i = 0; i < count; ++i) { \
+                    str += QString(QLatin1String("%1,")).arg(ToStringfn(engine, c[i])); \
+                } \
+                str.chop(1); \
+                return engine->toString(str); \
+            } \
+        private: \
+            QDeclarativeGuard<QObject> object; \
+            int propertyIndex; \
+            SequenceType c; \
+    };
+
+#define GENERATE_QML_SEQUENCE_TYPE_RESOURCE(ElementType, ElementTypeName, SequenceType, DefaultValue) \
+    QML_SEQUENCE_TYPE_RESOURCE(ElementType, ElementTypeName, SequenceType, DefaultValue, convert##ElementTypeName##ToV8Value, convertV8ValueTo##ElementTypeName, convert##ElementTypeName##ToString)
+
+FOREACH_QML_SEQUENCE_TYPE(GENERATE_QML_SEQUENCE_TYPE_RESOURCE)
+#undef GENERATE_QML_SEQUENCE_TYPE_RESOURCE
+#undef QML_SEQUENCE_TYPE_RESOURCE
+
+#endif // QV8SEQUENCEWRAPPER_P_P_H
diff --git a/src/declarative/qml/v8/qv8worker.cpp b/src/declarative/qml/v8/qv8worker.cpp
index d6998849e2..16e5abfb06 100644
--- a/src/declarative/qml/v8/qv8worker.cpp
+++ b/src/declarative/qml/v8/qv8worker.cpp
@@ -74,7 +74,8 @@ enum Type {
     WorkerNumber,
     WorkerDate,
     WorkerRegexp,
-    WorkerListModel
+    WorkerListModel,
+    WorkerSequence
 };
 
 static inline quint32 valueheader(Type type, quint32 size = 0)
@@ -252,6 +253,31 @@ void QV8Worker::serialize(QByteArray &data, v8::Handle<v8::Value> v, QV8Engine *
         // No other QObject's are allowed to be sent
         push(data, valueheader(WorkerUndefined));
     } else {
+        // we can convert sequences, but not other types with external data.
+        if (v->IsObject()) {
+            v8::Handle<v8::Object> seqObj = v->ToObject();
+            QV8ObjectResource *r = static_cast<QV8ObjectResource *>(seqObj->GetExternalResource());
+            QVariant sequenceVariant = engine->sequenceWrapper()->toVariant(r);
+            if (!sequenceVariant.isNull()) {
+                // valid sequence.  we generate a length (sequence length + 1 for the sequence type)
+                uint32_t seqLength = engine->sequenceWrapper()->sequenceLength(r);
+                uint32_t length = seqLength + 1;
+                if (length > 0xFFFFFF) {
+                    push(data, valueheader(WorkerUndefined));
+                    return;
+                }
+                reserve(data, sizeof(quint32) + length * sizeof(quint32));
+                push(data, valueheader(WorkerSequence, length));
+                serialize(data, v8::Integer::New(sequenceVariant.userType()), engine); // sequence type
+                for (uint32_t ii = 0; ii < seqLength; ++ii) {
+                    serialize(data, seqObj->Get(ii), engine); // sequence elements
+                }
+
+                return;
+            }
+        }
+
+        // not a sequence.
         push(data, valueheader(WorkerUndefined));
     }
 }
@@ -330,6 +356,18 @@ v8::Handle<v8::Value> QV8Worker::deserialize(const char *&data, QV8Engine *engin
         agent->setV8Engine(engine);
         return rv;
     }
+    case WorkerSequence:
+    {
+        bool succeeded = false;
+        quint32 length = headersize(header);
+        quint32 seqLength = length - 1;
+        int sequenceType = deserialize(data, engine)->Int32Value();
+        v8::Local<v8::Array> array = v8::Array::New(seqLength);
+        for (quint32 ii = 0; ii < seqLength; ++ii)
+            array->Set(ii, deserialize(data, engine));
+        QVariant seqVariant = engine->sequenceWrapper()->toVariant(array, sequenceType, &succeeded);
+        return engine->sequenceWrapper()->fromVariant(seqVariant, &succeeded);
+    }
     }
     Q_ASSERT(!"Unreachable");
     return v8::Undefined();
diff --git a/src/declarative/qml/v8/v8.pri b/src/declarative/qml/v8/v8.pri
index c4372ab82a..924602ec39 100644
--- a/src/declarative/qml/v8/v8.pri
+++ b/src/declarative/qml/v8/v8.pri
@@ -9,6 +9,8 @@ HEADERS += \
     $$PWD/qv8stringwrapper_p.h \
     $$PWD/qv8engine_p.h \
     $$PWD/qv8gccallback_p.h \
+    $$PWD/qv8sequencewrapper_p.h \
+    $$PWD/qv8sequencewrapper_p_p.h \
     $$PWD/qv8contextwrapper_p.h \
     $$PWD/qv8qobjectwrapper_p.h \
     $$PWD/qv8typewrapper_p.h \
@@ -26,6 +28,7 @@ HEADERS += \
 SOURCES += \
     $$PWD/qv8stringwrapper.cpp \
     $$PWD/qv8engine.cpp \
+    $$PWD/qv8sequencewrapper.cpp \
     $$PWD/qv8contextwrapper.cpp \
     $$PWD/qv8qobjectwrapper.cpp \
     $$PWD/qv8typewrapper.cpp \
diff --git a/tests/auto/declarative/qdeclarativeecmascript/data/SequenceConversionComponent.qml b/tests/auto/declarative/qdeclarativeecmascript/data/SequenceConversionComponent.qml
new file mode 100644
index 0000000000..0c7f60b062
--- /dev/null
+++ b/tests/auto/declarative/qdeclarativeecmascript/data/SequenceConversionComponent.qml
@@ -0,0 +1,7 @@
+import QtQuick 2.0
+import Qt.test 1.0
+
+MySequenceConversionObject {
+    id: sccmsco
+    objectName: "sccmsco"
+}
diff --git a/tests/auto/declarative/qdeclarativeecmascript/data/sequenceConversion.array.qml b/tests/auto/declarative/qdeclarativeecmascript/data/sequenceConversion.array.qml
new file mode 100644
index 0000000000..5eaa225708
--- /dev/null
+++ b/tests/auto/declarative/qdeclarativeecmascript/data/sequenceConversion.array.qml
@@ -0,0 +1,152 @@
+import QtQuick 2.0
+import Qt.test 1.0
+
+Item {
+    id: root
+    objectName: "root"
+
+    MySequenceConversionObject {
+        id: msco
+        objectName: "msco"
+    }
+
+    property bool success: false
+
+    property variant intList
+    property variant qrealList
+    property variant boolList
+    property variant stringList
+
+    function indexedAccess() {
+        intList = msco.intListProperty;
+        var jsIntList = msco.intListProperty;
+        qrealList = msco.qrealListProperty;
+        var jsQrealList = msco.qrealListProperty;
+        boolList = msco.boolListProperty;
+        var jsBoolList = msco.boolListProperty;
+        stringList = msco.stringListProperty;
+        var jsStringList = msco.stringListProperty;
+
+        // Three cases: direct property modification, variant copy modification, js var reference modification.
+        // Only the first and third should "write back" to the original QObject Q_PROPERTY; the second one
+        // should have no effect whatsoever to maintain "property variant" semantics (see e.g., valuetype).
+        success = true;
+
+        msco.intListProperty[1] = 33;
+        if (msco.intListProperty[1] != 33) success = false;                  // ensure write back
+        intList[1] = 44;
+        if (intList[1] == 44) success = false;                               // ensure no effect
+        jsIntList[1] = 55;
+        if (jsIntList[1] != 55
+                || jsIntList[1] != msco.intListProperty[1]) success = false; // ensure write back
+
+        msco.qrealListProperty[1] = 33.3;
+        if (msco.qrealListProperty[1] != 33.3) success = false;               // ensure write back
+        qrealList[1] = 44.4;
+        if (qrealList[1] == 44.4) success = false;                            // ensure no effect
+        jsQrealList[1] = 55.5;
+        if (jsQrealList[1] != 55.5
+                || jsQrealList[1] != msco.qrealListProperty[1]) success = false; // ensure write back
+
+        msco.boolListProperty[1] = true;
+        if (msco.boolListProperty[1] != true) success = false;           // ensure write back
+        boolList[1] = true;
+        if (boolList[1] != false) success = false;                       // ensure no effect
+        jsBoolList[1] = false;
+        if (jsBoolList[1] != false
+                || jsBoolList[1] != msco.boolListProperty[1]) success = false; // ensure write back
+
+        msco.stringListProperty[1] = "changed";
+        if (msco.stringListProperty[1] != "changed") success = false;    // ensure write back
+        stringList[1] = "changed";
+        if (stringList[1] != "second") success = false;                  // ensure no effect
+        jsStringList[1] = "different";
+        if (jsStringList[1] != "different"
+                || jsStringList[1] != msco.stringListProperty[1]) success = false; // ensure write back
+    }
+
+    function arrayOperations() {
+        success = true;
+        var expected = 0;
+        var expectedStr = "";
+
+        // ecma262r3 defines array as implementing Length and Put.  Test put here.
+        msco.intListProperty.asdf = 5; // shouldn't work, only indexes are valid names.
+        if (msco.intListProperty.asdf == 5) success = false;
+        msco.intListProperty[3] = 38;   // should work.
+        if (msco.intListProperty[3] != 38) success = false;
+        msco.intListProperty[199] = 200; // should work, and should set length to 200.
+        if (msco.intListProperty[199] != 200) success = false;
+        if (msco.intListProperty.length != 200) success = false;
+
+        // other operations are defined on the array prototype; see if they work.
+        msco.intListProperty = [ 0, 1, 2, 3, 4, 5, 6, 7 ];
+        msco.intListProperty.splice(1,3, 33, 44, 55, 66);
+        expected = [ 0, 33, 44, 55, 66, 4, 5, 6, 7 ];
+        if (msco.intListProperty.toString() != expected.toString()) success = false;
+
+        msco.qrealListProperty = [ 0.1, 1.1, 2.1, 3.1, 4.1, 5.1, 6.1, 7.1 ];
+        msco.qrealListProperty.splice(1,3, 33.33, 44.44, 55.55, 66.66);
+        expected = [ 0.1, 33.33, 44.44, 55.55, 66.66, 4.1, 5.1, 6.1, 7.1 ];
+        if (msco.qrealListProperty.toString() != expected.toString()) success = false;
+
+        msco.boolListProperty = [ false, true, true, false, false, true, false, true ];
+        msco.boolListProperty.splice(1,3, false, true, false, false);
+        expected = [ false, false, true, false, false, false, true, false, true ];
+        if (msco.boolListProperty.toString() != expected.toString()) success = false;
+
+        msco.stringListProperty = [ "one", "two", "three", "four", "five", "six", "seven", "eight" ];
+        msco.stringListProperty.splice(1,3, "nine", "ten", "eleven", "twelve");
+        expected = [ "one", "nine", "ten", "eleven", "twelve", "five", "six", "seven", "eight" ];
+        if (msco.stringListProperty.toString() != expected.toString()) success = false;
+    }
+
+    property variant variantList: [ 1, 2, 3, 4, 5 ];
+    property variant variantList2: [ 1, 2, 3, 4, 5 ];
+    function testEqualitySemantics() {
+        // ensure equality semantics match JS array equality semantics
+        success = true;
+
+        msco.intListProperty = [ 1, 2, 3, 4, 5 ];
+        msco.intListProperty2 = [ 1, 2, 3, 4, 5 ];
+        var jsIntList = [ 1, 2, 3, 4, 5 ];
+        var jsIntList2 = [ 1, 2, 3, 4, 5 ];
+
+        if (jsIntList != jsIntList) success = false;
+        if (jsIntList == jsIntList2) success = false;
+        if (jsIntList == msco.intListProperty) success = false;
+        if (jsIntList == variantList) success = false;
+
+        if (msco.intListProperty != msco.intListProperty) success = false;
+        if (msco.intListProperty == msco.intListProperty2) success = false;
+        if (msco.intListProperty == jsIntList) success = false;
+        if (msco.intListProperty == variantList) success = false;
+
+        if (variantList == variantList) return false;
+        if (variantList == variantList2) return false;
+        if (variantList == msco.intListProperty) return false;
+        if (variantList == jsIntList) return false;
+
+        if ((jsIntList == jsIntList2) != (jsIntList == msco.intListProperty)) success = false;
+        if ((jsIntList == jsIntList2) != (msco.intListProperty == msco.intListProperty2)) success = false;
+        if ((jsIntList == jsIntList) != (msco.intListProperty == msco.intListProperty)) success = false;
+        if ((jsIntList == variantList) != (msco.intListProperty == variantList)) success = false;
+        if ((variantList == jsIntList) != (variantList == msco.intListProperty)) success = false;
+        if ((msco.intListProperty == variantList) != (variantList == msco.intListProperty)) success = false;
+    }
+
+    property bool referenceDeletion: false
+    function testReferenceDeletion() {
+        referenceDeletion = true;
+        var testObj = msco.generateTestObject();
+        testObj.intListProperty = [1, 2, 3, 4, 5];
+        var testSequence = testObj.intListProperty;
+        var prevString = testSequence.toString();
+        var prevValueOf = testSequence.valueOf();
+        var prevLength = testSequence.length;
+        msco.deleteTestObject(testObj); // delete referenced object.
+        if (testSequence.toString() == prevString) referenceDeletion = false;
+        if (testSequence.valueOf() == prevValueOf) referenceDeletion = false;
+        if (testSequence.length == prevLength) referenceDeletion = false;
+    }
+}
diff --git a/tests/auto/declarative/qdeclarativeecmascript/data/sequenceConversion.bindings.error.qml b/tests/auto/declarative/qdeclarativeecmascript/data/sequenceConversion.bindings.error.qml
new file mode 100644
index 0000000000..9c87dd293e
--- /dev/null
+++ b/tests/auto/declarative/qdeclarativeecmascript/data/sequenceConversion.bindings.error.qml
@@ -0,0 +1,19 @@
+import QtQuick 2.0
+import Qt.test 1.0
+
+Item {
+    id: root
+    objectName: "root"
+
+    MySequenceConversionObject {
+        id: msco
+        objectName: "msco"
+        intListProperty: [ 1, 2, 3, 6, 7 ]
+    }
+
+    MySequenceConversionObject {
+        id: mscoTwo
+        objectName: "mscoTwo"
+        boolListProperty: msco.intListProperty
+    }
+}
diff --git a/tests/auto/declarative/qdeclarativeecmascript/data/sequenceConversion.bindings.qml b/tests/auto/declarative/qdeclarativeecmascript/data/sequenceConversion.bindings.qml
new file mode 100644
index 0000000000..8d83e9f9f5
--- /dev/null
+++ b/tests/auto/declarative/qdeclarativeecmascript/data/sequenceConversion.bindings.qml
@@ -0,0 +1,28 @@
+import QtQuick 2.0
+import Qt.test 1.0
+
+Item {
+    id: root
+    objectName: "root"
+
+    MySequenceConversionObject {
+        id: msco
+        objectName: "msco"
+        intListProperty: [ 1, 2, 3, 6, 7 ]
+    }
+
+    MySequenceConversionObject {
+        id: mscoTwo
+        objectName: "mscoTwo"
+        intListProperty: msco.intListProperty
+    }
+
+    property variant boundSequence: msco.intListProperty
+    property int boundElement: msco.intListProperty[3]
+    property variant boundSequenceTwo: mscoTwo.intListProperty
+
+    Component.onCompleted: {
+        msco.intListProperty[3] = 12;
+        mscoTwo.intListProperty[4] = 14;
+    }
+}
diff --git a/tests/auto/declarative/qdeclarativeecmascript/data/sequenceConversion.copy.qml b/tests/auto/declarative/qdeclarativeecmascript/data/sequenceConversion.copy.qml
new file mode 100644
index 0000000000..f6614dad0c
--- /dev/null
+++ b/tests/auto/declarative/qdeclarativeecmascript/data/sequenceConversion.copy.qml
@@ -0,0 +1,160 @@
+import QtQuick 2.0
+import Qt.test 1.0
+
+Item {
+    id: root
+    objectName: "root"
+
+    MySequenceConversionObject {
+        id: msco
+        objectName: "msco"
+    }
+
+    property bool success: true
+
+    property variant intList
+    property variant qrealList
+    property variant boolList
+    property variant stringList
+    property variant urlList
+    property variant qstringList
+
+    // this test ensures that the "copy resource" codepaths work
+    function testCopySequences() {
+        success = true;
+
+        // create "copy resource" sequences
+        var jsIntList = msco.generateIntSequence();
+        var jsQrealList = msco.generateQrealSequence();
+        var jsBoolList = msco.generateBoolSequence();
+        var jsStringList = msco.generateStringSequence();
+        var jsUrlList = msco.generateUrlSequence();
+        var jsQStringList = msco.generateQStringSequence();
+
+        if (jsIntList.toString() != [1, 2, 3].toString())
+            success = false;
+        if (jsQrealList.toString() != [1.1, 2.2, 3.3].toString())
+            success = false;
+        if (jsBoolList.toString() != [true, false, true].toString())
+            success = false;
+        if (jsStringList.toString() != ["one", "two", "three"].toString())
+            success = false;
+        if (jsUrlList.toString() != ["http://www.example1.com", "http://www.example2.com", "http://www.example3.com"].toString())
+            success = false;
+        if (jsQStringList.toString() != ["one", "two", "three"].toString())
+            success = false;
+
+        // copy the sequence; should result in a new copy
+        intList = jsIntList;
+        qrealList = jsQrealList;
+        boolList = jsBoolList;
+        stringList = jsStringList;
+        urlList = jsUrlList;
+        qstringList = jsQStringList;
+
+        // these operations shouldn't modify either variables - because
+        // we don't handle writing to the intermediate variant at list[index]
+        // for variant properties.
+        intList[1] = 8;
+        qrealList[1] = 8.8;
+        boolList[1] = true;
+        stringList[1] = "eight";
+        urlList[1] = "http://www.example8.com";
+        qstringList[1] = "eight";
+
+        if (jsIntList[1] == 8)
+            success = false;
+        if (jsQrealList[1] == 8.8)
+            success = false;
+        if (jsBoolList[1] == true)
+            success = false;
+        if (jsStringList[1] == "eight")
+            success = false;
+        if (jsUrlList[1] == "http://www.example8.com")
+            success = false;
+        if (jsQStringList[1] == "eight")
+            success = false;
+
+        // assign a "copy resource" sequence to a QObject Q_PROPERTY
+        msco.intListProperty = intList;
+        msco.qrealListProperty = qrealList;
+        msco.boolListProperty = boolList;
+        msco.stringListProperty = stringList;
+        msco.urlListProperty = urlList;
+        msco.qstringListProperty = qstringList;
+
+        if (msco.intListProperty.toString() != [1, 2, 3].toString())
+            success = false;
+        if (msco.qrealListProperty.toString() != [1.1, 2.2, 3.3].toString())
+            success = false;
+        if (msco.boolListProperty.toString() != [true, false, true].toString())
+            success = false;
+        if (msco.stringListProperty.toString() != ["one", "two", "three"].toString())
+            success = false;
+        if (msco.urlListProperty.toString() != ["http://www.example1.com", "http://www.example2.com", "http://www.example3.com"].toString())
+            success = false;
+        if (msco.qstringListProperty.toString() != ["one", "two", "three"].toString())
+            success = false;
+
+        // now modify the QObject Q_PROPERTY (reference resource) sequences - shouldn't modify the copy resource sequences.
+        msco.intListProperty[2] = 9;
+        msco.qrealListProperty[2] = 9.9;
+        msco.boolListProperty[2] = false;
+        msco.stringListProperty[2] = "nine";
+        msco.urlListProperty[2] = "http://www.example9.com";
+        msco.qstringListProperty[2] = "nine";
+
+        if (intList[2] == 9)
+            success = false;
+        if (qrealList[2] == 9.9)
+            success = false;
+        if (boolList[2] == false)
+            success = false;
+        if (stringList[2] == "nine")
+            success = false;
+        if (urlList[2] == "http://www.example9.com")
+            success = false;
+        if (qstringList[2] == "nine")
+            success = false;
+    }
+
+    property int intVal
+    property real qrealVal
+    property bool boolVal
+    property string stringVal
+
+    // this test ensures that indexed access works for copy resource sequences.
+    function readSequenceCopyElements() {
+        success = true;
+
+        var jsIntList = msco.generateIntSequence();
+        var jsQrealList = msco.generateQrealSequence();
+        var jsBoolList = msco.generateBoolSequence();
+        var jsStringList = msco.generateStringSequence();
+
+        intVal = jsIntList[1];
+        qrealVal = jsQrealList[1];
+        boolVal = jsBoolList[1];
+        stringVal = jsStringList[1];
+
+        if (intVal != 2)
+            success = false;
+        if (qrealVal != 2.2)
+            success = false;
+        if (boolVal != false)
+            success = false;
+        if (stringVal != "two")
+            success = false;
+    }
+
+    // this test ensures that equality works for copy resource sequences.
+    function testEqualitySemantics() {
+        success = true;
+
+        var jsIntList = msco.generateIntSequence();
+        var jsIntList2 = msco.generateIntSequence();
+
+        if (jsIntList == jsIntList2) success = false;
+        if (jsIntList != jsIntList) success = false;
+    }
+}
diff --git a/tests/auto/declarative/qdeclarativeecmascript/data/sequenceConversion.read.error.qml b/tests/auto/declarative/qdeclarativeecmascript/data/sequenceConversion.read.error.qml
new file mode 100644
index 0000000000..12a76d7e7d
--- /dev/null
+++ b/tests/auto/declarative/qdeclarativeecmascript/data/sequenceConversion.read.error.qml
@@ -0,0 +1,21 @@
+import QtQuick 2.0
+import Qt.test 1.0
+
+Item {
+    id: root
+    objectName: "root"
+
+    MySequenceConversionObject {
+        id: msco
+        objectName: "msco"
+    }
+
+    property int pointListLength: 0
+    property variant pointList
+
+    function performTest() {
+        // we have NOT registered QList<QPoint> as a type
+        pointListLength = msco.pointListProperty.length;
+        pointList = msco.pointListProperty;
+    }
+}
diff --git a/tests/auto/declarative/qdeclarativeecmascript/data/sequenceConversion.read.qml b/tests/auto/declarative/qdeclarativeecmascript/data/sequenceConversion.read.qml
new file mode 100644
index 0000000000..4a8a4a17b2
--- /dev/null
+++ b/tests/auto/declarative/qdeclarativeecmascript/data/sequenceConversion.read.qml
@@ -0,0 +1,105 @@
+import QtQuick 2.0
+import Qt.test 1.0
+
+Item {
+    id: root
+    objectName: "root"
+
+    MySequenceConversionObject {
+        id: msco
+        objectName: "msco"
+    }
+
+    property int intListLength: 0
+    property variant intList
+    property int qrealListLength: 0
+    property variant qrealList
+    property int boolListLength: 0
+    property variant boolList
+    property int stringListLength: 0
+    property variant stringList
+    property int urlListLength: 0
+    property variant urlList
+    property int qstringListLength: 0
+    property variant qstringList
+
+    function readSequences() {
+        intListLength = msco.intListProperty.length;
+        intList = msco.intListProperty;
+        qrealListLength = msco.qrealListProperty.length;
+        qrealList = msco.qrealListProperty;
+        boolListLength = msco.boolListProperty.length;
+        boolList = msco.boolListProperty;
+        stringListLength = msco.stringListProperty.length;
+        stringList = msco.stringListProperty;
+        urlListLength = msco.urlListProperty.length;
+        urlList = msco.urlListProperty;
+        qstringListLength = msco.qstringListProperty.length;
+        qstringList = msco.qstringListProperty;
+    }
+
+    property int intVal
+    property real qrealVal
+    property bool boolVal
+    property string stringVal
+    property url urlVal
+    property string qstringVal
+
+    function readSequenceElements() {
+        intVal = msco.intListProperty[1];
+        qrealVal = msco.qrealListProperty[1];
+        boolVal = msco.boolListProperty[1];
+        stringVal = msco.stringListProperty[1];
+        urlVal = msco.urlListProperty[1];
+        qstringVal = msco.qstringListProperty[1];
+    }
+
+    property bool enumerationMatches
+    function enumerateSequenceElements() {
+        var jsIntList = [1, 2, 3, 4, 5];
+        msco.intListProperty = [1, 2, 3, 4, 5];
+
+        var jsIntListProps = []
+        var seqIntListProps = []
+
+        enumerationMatches = true;
+        for (var i in jsIntList) {
+            jsIntListProps.push(i);
+            if (jsIntList[i] != msco.intListProperty[i]) {
+                enumerationMatches = false;
+            }
+        }
+        for (var j in msco.intListProperty) {
+            seqIntListProps.push(j);
+            if (jsIntList[j] != msco.intListProperty[j]) {
+                enumerationMatches = false;
+            }
+        }
+
+        if (jsIntListProps.length != seqIntListProps.length) {
+            enumerationMatches = false;
+        }
+
+        var emptyList = [];
+        msco.stringListProperty = []
+        if (emptyList.toString() != msco.stringListProperty.toString()) {
+            enumerationMatches = false;
+        }
+        if (emptyList.valueOf() != msco.stringListProperty.valueOf()) {
+            enumerationMatches = false;
+        }
+    }
+
+    property bool referenceDeletion: false
+    function testReferenceDeletion() {
+        referenceDeletion = true;
+        var testObj = msco.generateTestObject();
+        testObj.intListProperty = [1, 2, 3, 4, 5];
+        var testSequence = testObj.intListProperty;
+        if (testSequence[4] != 5)
+            referenceDeletion = false;
+        msco.deleteTestObject(testObj); // delete referenced object.
+        if (testSequence[4] == 5)
+            referenceDeletion = false;
+    }
+}
diff --git a/tests/auto/declarative/qdeclarativeecmascript/data/sequenceConversion.threads.qml b/tests/auto/declarative/qdeclarativeecmascript/data/sequenceConversion.threads.qml
new file mode 100644
index 0000000000..5c4afe0574
--- /dev/null
+++ b/tests/auto/declarative/qdeclarativeecmascript/data/sequenceConversion.threads.qml
@@ -0,0 +1,69 @@
+import QtQuick 2.0
+import Qt.test 1.0
+
+Item {
+    id: root
+    objectName: "root"
+
+    MySequenceConversionObject {
+        id: msco
+        objectName: "msco"
+    }
+
+    property bool success: false
+    property bool finished: false
+
+    function testIntSequence() {
+        msco.intListProperty = [ 0, 1, 2, 3, 4, 5, 6, 7 ];
+        worker.sendSequence(msco.intListProperty);
+    }
+
+    function testQrealSequence() {
+        msco.qrealListProperty = [ 0.1, 1.1, 2.1, 3.1, 4.1, 5.1, 6.1, 7.1 ];
+        worker.sendSequence(msco.qrealListProperty);
+    }
+
+    function testBoolSequence() {
+        msco.boolListProperty = [ false, true, true, false, false, true, false, true ];
+        worker.sendSequence(msco.boolListProperty);
+    }
+
+    function testStringSequence() {
+        msco.stringListProperty = [ "one", "two", "three", "four" ];
+        worker.sendSequence(msco.stringListProperty);
+    }
+
+    function testQStringSequence() {
+        msco.qstringListProperty = [ "one", "two", "three", "four" ];
+        worker.sendSequence(msco.qstringListProperty);
+    }
+
+    function testUrlSequence() {
+        msco.urlListProperty = [ "www.example1.com", "www.example2.com", "www.example3.com", "www.example4.com" ];
+        worker.sendSequence(msco.urlListProperty);
+    }
+
+    WorkerScript {
+        id: worker
+        source: "threadScript.js"
+
+        property variant expected
+        property variant response
+
+        function sendSequence(seq) {
+            root.success = false;
+            root.finished = false;
+            worker.expected = seq;
+            worker.sendMessage(seq);
+        }
+
+        onMessage: {
+            worker.response = messageObject;
+            if (worker.response.toString() == worker.expected.toString())
+                root.success = true;
+            else
+                root.success = false;
+            root.finished = true;
+        }
+    }
+}
diff --git a/tests/auto/declarative/qdeclarativeecmascript/data/sequenceConversion.write.error.qml b/tests/auto/declarative/qdeclarativeecmascript/data/sequenceConversion.write.error.qml
new file mode 100644
index 0000000000..75beafd1ee
--- /dev/null
+++ b/tests/auto/declarative/qdeclarativeecmascript/data/sequenceConversion.write.error.qml
@@ -0,0 +1,18 @@
+import QtQuick 2.0
+import Qt.test 1.0
+
+Item {
+    id: root
+    objectName: "root"
+
+    MySequenceConversionObject {
+        id: msco
+        objectName: "msco"
+    }
+
+    function performTest() {
+        // we have NOT registered QList<QPoint> as a type
+        var pointList = [ Qt.point(7,7), Qt.point(8,8), Qt.point(9,9) ];
+        msco.pointListProperty = pointList; // error.
+    }
+}
diff --git a/tests/auto/declarative/qdeclarativeecmascript/data/sequenceConversion.write.qml b/tests/auto/declarative/qdeclarativeecmascript/data/sequenceConversion.write.qml
new file mode 100644
index 0000000000..812de043b7
--- /dev/null
+++ b/tests/auto/declarative/qdeclarativeecmascript/data/sequenceConversion.write.qml
@@ -0,0 +1,109 @@
+import QtQuick 2.0
+import Qt.test 1.0
+
+Item {
+    id: root
+    objectName: "root"
+
+    MySequenceConversionObject {
+        id: msco
+        objectName: "msco"
+    }
+
+    property bool success
+
+    function writeSequences() {
+        success = true;
+
+        var intList = [ 9, 8, 7, 6 ];
+        msco.intListProperty = intList;
+        var qrealList = [ 9.9, 8.8, 7.7, 6.6 ];
+        msco.qrealListProperty = qrealList;
+        var boolList = [ false, false, false, true ];
+        msco.boolListProperty = boolList;
+        var stringList = [ "nine", "eight", "seven", "six" ]
+        msco.stringListProperty = stringList;
+        var urlList = [ "http://www.example9.com", "http://www.example8.com", "http://www.example7.com", "http://www.example6.com" ]
+        msco.urlListProperty = urlList;
+        var qstringList = [ "nine", "eight", "seven", "six" ]
+        msco.qstringListProperty = qstringList;
+
+        if (msco.intListProperty[0] != 9 || msco.intListProperty[1] != 8 || msco.intListProperty[2] != 7 || msco.intListProperty[3] != 6)
+            success = false;
+        if (msco.qrealListProperty[0] != 9.9 || msco.qrealListProperty[1] != 8.8 || msco.qrealListProperty[2] != 7.7 || msco.qrealListProperty[3] != 6.6)
+            success = false;
+        if (msco.boolListProperty[0] != false || msco.boolListProperty[1] != false || msco.boolListProperty[2] != false || msco.boolListProperty[3] != true)
+            success = false;
+        if (msco.stringListProperty[0] != "nine" || msco.stringListProperty[1] != "eight" || msco.stringListProperty[2] != "seven" || msco.stringListProperty[3] != "six")
+            success = false;
+        if (msco.urlListProperty[0] != "http://www.example9.com" || msco.urlListProperty[1] != "http://www.example8.com" || msco.urlListProperty[2] != "http://www.example7.com" || msco.urlListProperty[3] != "http://www.example6.com")
+            success = false;
+        if (msco.qstringListProperty[0] != "nine" || msco.qstringListProperty[1] != "eight" || msco.qstringListProperty[2] != "seven" || msco.qstringListProperty[3] != "six")
+            success = false;
+    }
+
+    function writeSequenceElements() {
+        // set up initial conditions.
+        writeSequences();
+        success = true;
+
+        // element set.
+        msco.intListProperty[3] = 2;
+        msco.qrealListProperty[3] = 2.2;
+        msco.boolListProperty[3] = false;
+        msco.stringListProperty[3] = "changed";
+        msco.urlListProperty[3] = "http://www.examplechanged.com";
+        msco.qstringListProperty[3] = "changed";
+
+        if (msco.intListProperty[0] != 9 || msco.intListProperty[1] != 8 || msco.intListProperty[2] != 7 || msco.intListProperty[3] != 2)
+            success = false;
+        if (msco.qrealListProperty[0] != 9.9 || msco.qrealListProperty[1] != 8.8 || msco.qrealListProperty[2] != 7.7 || msco.qrealListProperty[3] != 2.2)
+            success = false;
+        if (msco.boolListProperty[0] != false || msco.boolListProperty[1] != false || msco.boolListProperty[2] != false || msco.boolListProperty[3] != false)
+            success = false;
+        if (msco.stringListProperty[0] != "nine" || msco.stringListProperty[1] != "eight" || msco.stringListProperty[2] != "seven" || msco.stringListProperty[3] != "changed")
+            success = false;
+        if (msco.urlListProperty[0] != "http://www.example9.com" || msco.urlListProperty[1] != "http://www.example8.com" || msco.urlListProperty[2] != "http://www.example7.com" || msco.urlListProperty[3] != "http://www.examplechanged.com")
+            success = false;
+        if (msco.qstringListProperty[0] != "nine" || msco.qstringListProperty[1] != "eight" || msco.qstringListProperty[2] != "seven" || msco.qstringListProperty[3] != "changed")
+            success = false;
+    }
+
+    function writeOtherElements() {
+        success = true;
+        var jsIntList = [1, 2, 3, 4, 5];
+        msco.intListProperty = [1, 2, 3, 4, 5];
+
+        jsIntList[8] = 8;
+        msco.intListProperty[8] = 8;
+        if (jsIntList[8] != msco.intListProperty[8])
+            success = false;
+        if (jsIntList.length != msco.intListProperty.length)
+            success = false;
+
+        // NOTE: we can't exactly match the spec here -- we fill the sequence with a default (rather than empty) value
+        if (msco.intListProperty[5] != 0 || msco.intListProperty[6] != 0 || msco.intListProperty[7] != 0)
+            success = false;
+
+        // should have no effect
+        var currLength = jsIntList.length;
+        jsIntList.someThing = 9;
+        msco.intListProperty.someThing = 9;
+        if (msco.intListProperty.length != currLength)
+            success = false;
+    }
+
+    property bool referenceDeletion: false
+    function testReferenceDeletion() {
+        referenceDeletion = true;
+        var testObj = msco.generateTestObject();
+        testObj.intListProperty = [1, 2, 3, 4, 5];
+        var testSequence = testObj.intListProperty;
+        if (testSequence[4] != 5)
+            referenceDeletion = false;
+        msco.deleteTestObject(testObj); // delete referenced object.
+        testSequence[4] = 5; // shouldn't work, since referenced object no longer exists.
+        if (testSequence[4] == 5)
+            referenceDeletion = false;
+    }
+}
diff --git a/tests/auto/declarative/qdeclarativeecmascript/data/threadScript.js b/tests/auto/declarative/qdeclarativeecmascript/data/threadScript.js
new file mode 100644
index 0000000000..9f94de1bc1
--- /dev/null
+++ b/tests/auto/declarative/qdeclarativeecmascript/data/threadScript.js
@@ -0,0 +1,4 @@
+WorkerScript.onMessage = function(msg) {
+    WorkerScript.sendMessage(msg);
+}
+
diff --git a/tests/auto/declarative/qdeclarativeecmascript/testtypes.cpp b/tests/auto/declarative/qdeclarativeecmascript/testtypes.cpp
index 513705d697..781b78663f 100644
--- a/tests/auto/declarative/qdeclarativeecmascript/testtypes.cpp
+++ b/tests/auto/declarative/qdeclarativeecmascript/testtypes.cpp
@@ -196,6 +196,8 @@ void registerTypes()
 
     qmlRegisterType<MyDynamicCreationDestructionObject>("Qt.test", 1, 0, "MyDynamicCreationDestructionObject");
     qmlRegisterType<WriteCounter>("Qt.test", 1, 0, "WriteCounter");
+
+    qmlRegisterType<MySequenceConversionObject>("Qt.test", 1, 0, "MySequenceConversionObject");
 }
 
 #include "testtypes.moc"
diff --git a/tests/auto/declarative/qdeclarativeecmascript/testtypes.h b/tests/auto/declarative/qdeclarativeecmascript/testtypes.h
index 7684ddd438..af4225c8da 100644
--- a/tests/auto/declarative/qdeclarativeecmascript/testtypes.h
+++ b/tests/auto/declarative/qdeclarativeecmascript/testtypes.h
@@ -1148,6 +1148,87 @@ private:
     int m_count;
 };
 
+class MySequenceConversionObject : public QObject
+{
+    Q_OBJECT
+
+    Q_PROPERTY (QList<int> intListProperty READ intListProperty WRITE setIntListProperty NOTIFY intListPropertyChanged)
+    Q_PROPERTY (QList<int> intListProperty2 READ intListProperty2 WRITE setIntListProperty2 NOTIFY intListProperty2Changed)
+    Q_PROPERTY (QList<qreal> qrealListProperty READ qrealListProperty WRITE setQrealListProperty NOTIFY qrealListPropertyChanged)
+    Q_PROPERTY (QList<bool> boolListProperty READ boolListProperty WRITE setBoolListProperty NOTIFY boolListPropertyChanged)
+    Q_PROPERTY (QList<QString> stringListProperty READ stringListProperty WRITE setStringListProperty NOTIFY stringListPropertyChanged)
+    Q_PROPERTY (QList<QUrl> urlListProperty READ urlListProperty WRITE setUrlListProperty NOTIFY urlListPropertyChanged)
+
+    Q_PROPERTY (QStringList qstringListProperty READ qstringListProperty WRITE setQStringListProperty NOTIFY qstringListPropertyChanged)
+    Q_PROPERTY (QList<QPoint> pointListProperty READ pointListProperty WRITE setPointListProperty NOTIFY pointListPropertyChanged)
+
+public:
+    MySequenceConversionObject()
+    {
+        m_intList << 1 << 2 << 3 << 4;
+        m_intList2 << 1 << 2 << 3 << 4;
+        m_qrealList << 1.1 << 2.2 << 3.3 << 4.4;
+        m_boolList << true << false << true << false;
+        m_stringList << QLatin1String("first") << QLatin1String("second") << QLatin1String("third") << QLatin1String("fourth");
+        m_urlList << QUrl("http://www.example1.com") << QUrl("http://www.example2.com") << QUrl("http://www.example3.com");
+
+        m_qstringList << QLatin1String("first") << QLatin1String("second") << QLatin1String("third") << QLatin1String("fourth");
+        m_pointList << QPoint(1, 2) << QPoint(3, 4) << QPoint(5, 6);
+    }
+
+    ~MySequenceConversionObject() {}
+
+    QList<int> intListProperty() const { return m_intList; }
+    void setIntListProperty(const QList<int> &list) { m_intList = list; emit intListPropertyChanged(); }
+    QList<int> intListProperty2() const { return m_intList2; }
+    void setIntListProperty2(const QList<int> &list) { m_intList2 = list; emit intListProperty2Changed(); }
+    QList<qreal> qrealListProperty() const { return m_qrealList; }
+    void setQrealListProperty(const QList<qreal> &list) { m_qrealList = list; emit qrealListPropertyChanged(); }
+    QList<bool> boolListProperty() const { return m_boolList; }
+    void setBoolListProperty(const QList<bool> &list) { m_boolList = list; emit boolListPropertyChanged(); }
+    QList<QString> stringListProperty() const { return m_stringList; }
+    void setStringListProperty(const QList<QString> &list) { m_stringList = list; emit stringListPropertyChanged(); }
+    QList<QUrl> urlListProperty() const { return m_urlList; }
+    void setUrlListProperty(const QList<QUrl> &list) { m_urlList = list; emit urlListPropertyChanged(); }
+    QStringList qstringListProperty() const { return m_qstringList; }
+    void setQStringListProperty(const QStringList &list) { m_qstringList = list; emit qstringListPropertyChanged(); }
+    QList<QPoint> pointListProperty() const { return m_pointList; }
+    void setPointListProperty(const QList<QPoint> &list) { m_pointList = list; emit pointListPropertyChanged(); }
+
+    // now for "copy resource" sequences:
+    Q_INVOKABLE QList<int> generateIntSequence() const { QList<int> retn; retn << 1 << 2 << 3; return retn; }
+    Q_INVOKABLE QList<qreal> generateQrealSequence() const { QList<qreal> retn; retn << 1.1 << 2.2 << 3.3; return retn; }
+    Q_INVOKABLE QList<bool> generateBoolSequence() const { QList<bool> retn; retn << true << false << true; return retn; }
+    Q_INVOKABLE QList<QString> generateStringSequence() const { QList<QString> retn; retn << "one" << "two" << "three"; return retn; }
+    Q_INVOKABLE QList<QUrl> generateUrlSequence() const { QList<QUrl> retn; retn << QUrl("http://www.example1.com") << QUrl("http://www.example2.com") << QUrl("http://www.example3.com"); return retn; }
+    Q_INVOKABLE QStringList generateQStringSequence() const { QStringList retn; retn << "one" << "two" << "three"; return retn; }
+
+    // "reference resource" underlying qobject deletion test:
+    Q_INVOKABLE MySequenceConversionObject *generateTestObject() const { return new MySequenceConversionObject; }
+    Q_INVOKABLE void deleteTestObject(QObject *object) const { delete object; }
+
+signals:
+    void intListPropertyChanged();
+    void intListProperty2Changed();
+    void qrealListPropertyChanged();
+    void boolListPropertyChanged();
+    void stringListPropertyChanged();
+    void urlListPropertyChanged();
+    void qstringListPropertyChanged();
+    void pointListPropertyChanged();
+
+private:
+    QList<int> m_intList;
+    QList<int> m_intList2;
+    QList<qreal> m_qrealList;
+    QList<bool> m_boolList;
+    QList<QString> m_stringList;
+    QList<QUrl> m_urlList;
+
+    QStringList m_qstringList; // not a supported sequence type, but QStringList support is hardcoded.
+    QList<QPoint> m_pointList; // not a supported sequence type
+};
+
 void registerTypes();
 
 #endif // TESTTYPES_H
diff --git a/tests/auto/declarative/qdeclarativeecmascript/tst_qdeclarativeecmascript.cpp b/tests/auto/declarative/qdeclarativeecmascript/tst_qdeclarativeecmascript.cpp
index c92dc809e9..ee228ec3b8 100644
--- a/tests/auto/declarative/qdeclarativeecmascript/tst_qdeclarativeecmascript.cpp
+++ b/tests/auto/declarative/qdeclarativeecmascript/tst_qdeclarativeecmascript.cpp
@@ -170,6 +170,13 @@ private slots:
     void handleReferenceManagement();
     void stringArg();
     void readonlyDeclaration();
+    void sequenceConversionRead();
+    void sequenceConversionWrite();
+    void sequenceConversionArray();
+    void sequenceConversionThreads();
+    void sequenceConversionBindings();
+    void sequenceConversionCopy();
+
     void bug1();
     void bug2();
     void dynamicCreationCrash();
@@ -4048,6 +4055,232 @@ void tst_qdeclarativeecmascript::readonlyDeclaration()
     delete object;
 }
 
+Q_DECLARE_METATYPE(QList<int>)
+Q_DECLARE_METATYPE(QList<qreal>)
+Q_DECLARE_METATYPE(QList<bool>)
+Q_DECLARE_METATYPE(QList<QString>)
+Q_DECLARE_METATYPE(QList<QUrl>)
+void tst_qdeclarativeecmascript::sequenceConversionRead()
+{
+    {
+        QUrl qmlFile = TEST_FILE("sequenceConversion.read.qml");
+        QDeclarativeComponent component(&engine, qmlFile);
+        QObject *object = component.create();
+        QVERIFY(object != 0);
+        MySequenceConversionObject *seq = object->findChild<MySequenceConversionObject*>("msco");
+        QVERIFY(seq != 0);
+
+        QMetaObject::invokeMethod(object, "readSequences");
+        QList<int> intList; intList << 1 << 2 << 3 << 4;
+        QCOMPARE(object->property("intListLength").toInt(), intList.length());
+        QCOMPARE(object->property("intList").value<QList<int> >(), intList);
+        QList<qreal> qrealList; qrealList << 1.1 << 2.2 << 3.3 << 4.4;
+        QCOMPARE(object->property("qrealListLength").toInt(), qrealList.length());
+        QCOMPARE(object->property("qrealList").value<QList<qreal> >(), qrealList);
+        QList<bool> boolList; boolList << true << false << true << false;
+        QCOMPARE(object->property("boolListLength").toInt(), boolList.length());
+        QCOMPARE(object->property("boolList").value<QList<bool> >(), boolList);
+        QList<QString> stringList; stringList << QLatin1String("first") << QLatin1String("second") << QLatin1String("third") << QLatin1String("fourth");
+        QCOMPARE(object->property("stringListLength").toInt(), stringList.length());
+        QCOMPARE(object->property("stringList").value<QList<QString> >(), stringList);
+        QList<QUrl> urlList; urlList << QUrl("http://www.example1.com") << QUrl("http://www.example2.com") << QUrl("http://www.example3.com");
+        QCOMPARE(object->property("urlListLength").toInt(), urlList.length());
+        QCOMPARE(object->property("urlList").value<QList<QUrl> >(), urlList);
+        QStringList qstringList; qstringList << QLatin1String("first") << QLatin1String("second") << QLatin1String("third") << QLatin1String("fourth");
+        QCOMPARE(object->property("qstringListLength").toInt(), qstringList.length());
+        QCOMPARE(object->property("qstringList").value<QStringList>(), qstringList);
+
+        QMetaObject::invokeMethod(object, "readSequenceElements");
+        QCOMPARE(object->property("intVal").toInt(), 2);
+        QCOMPARE(object->property("qrealVal").toReal(), 2.2);
+        QCOMPARE(object->property("boolVal").toBool(), false);
+        QCOMPARE(object->property("stringVal").toString(), QString(QLatin1String("second")));
+        QCOMPARE(object->property("urlVal").toUrl(), QUrl("http://www.example2.com"));
+        QCOMPARE(object->property("qstringVal").toString(), QString(QLatin1String("second")));
+
+        QMetaObject::invokeMethod(object, "enumerateSequenceElements");
+        QCOMPARE(object->property("enumerationMatches").toBool(), true);
+
+        intList.clear(); intList << 1 << 2 << 3 << 4 << 5; // set by the enumerateSequenceElements test.
+        QDeclarativeProperty seqProp(seq, "intListProperty");
+        QCOMPARE(seqProp.read().value<QList<int> >(), intList);
+        QDeclarativeProperty seqProp2(seq, "intListProperty", &engine);
+        QCOMPARE(seqProp2.read().value<QList<int> >(), intList);
+
+        QMetaObject::invokeMethod(object, "testReferenceDeletion");
+        QCOMPARE(object->property("referenceDeletion").toBool(), true);
+
+        delete object;
+    }
+
+    {
+        QUrl qmlFile = TEST_FILE("sequenceConversion.read.error.qml");
+        QDeclarativeComponent component(&engine, qmlFile);
+        QObject *object = component.create();
+        QVERIFY(object != 0);
+        MySequenceConversionObject *seq = object->findChild<MySequenceConversionObject*>("msco");
+        QVERIFY(seq != 0);
+
+        // we haven't registered QList<QPoint> as a sequence type.
+        QString warningOne = QLatin1String("QMetaProperty::read: Unable to handle unregistered datatype 'QList<QPoint>' for property 'MySequenceConversionObject::pointListProperty'");
+        QString warningTwo = qmlFile.toString() + QLatin1String(":18: TypeError: Cannot read property 'length' of undefined");
+        QTest::ignoreMessage(QtWarningMsg, warningOne.toAscii().constData());
+        QTest::ignoreMessage(QtWarningMsg, warningTwo.toAscii().constData());
+
+        QMetaObject::invokeMethod(object, "performTest");
+
+        // QList<QPoint> has not been registered as a sequence type.
+        QCOMPARE(object->property("pointListLength").toInt(), 0);
+        QVERIFY(!object->property("pointList").isValid());
+        QTest::ignoreMessage(QtWarningMsg, "QMetaProperty::read: Unable to handle unregistered datatype 'QList<QPoint>' for property 'MySequenceConversionObject::pointListProperty'");
+        QDeclarativeProperty seqProp(seq, "pointListProperty", &engine);
+        QVERIFY(!seqProp.read().isValid()); // not a valid/known sequence type
+
+        delete object;
+    }
+}
+
+void tst_qdeclarativeecmascript::sequenceConversionWrite()
+{
+    {
+        QUrl qmlFile = TEST_FILE("sequenceConversion.write.qml");
+        QDeclarativeComponent component(&engine, qmlFile);
+        QObject *object = component.create();
+        QVERIFY(object != 0);
+        MySequenceConversionObject *seq = object->findChild<MySequenceConversionObject*>("msco");
+        QVERIFY(seq != 0);
+
+        QMetaObject::invokeMethod(object, "writeSequences");
+        QCOMPARE(object->property("success").toBool(), true);
+
+        QMetaObject::invokeMethod(object, "writeSequenceElements");
+        QCOMPARE(object->property("success").toBool(), true);
+
+        QMetaObject::invokeMethod(object, "writeOtherElements");
+        QCOMPARE(object->property("success").toBool(), true);
+
+        QMetaObject::invokeMethod(object, "testReferenceDeletion");
+        QCOMPARE(object->property("referenceDeletion").toBool(), true);
+
+        delete object;
+    }
+
+    {
+        QUrl qmlFile = TEST_FILE("sequenceConversion.write.error.qml");
+        QDeclarativeComponent component(&engine, qmlFile);
+        QObject *object = component.create();
+        QVERIFY(object != 0);
+        MySequenceConversionObject *seq = object->findChild<MySequenceConversionObject*>("msco");
+        QVERIFY(seq != 0);
+
+        // we haven't registered QList<QPoint> as a sequence type, so writing shouldn't work.
+        QString warningOne = qmlFile.toString() + QLatin1String(":16: Error: Cannot assign QVariantList to void");
+        QTest::ignoreMessage(QtWarningMsg, warningOne.toAscii().constData());
+
+        QMetaObject::invokeMethod(object, "performTest");
+
+        QList<QPoint> pointList; pointList << QPoint(1, 2) << QPoint(3, 4) << QPoint(5, 6); // original values, shouldn't have changed
+        QCOMPARE(seq->pointListProperty(), pointList);
+
+        delete object;
+    }
+}
+
+void tst_qdeclarativeecmascript::sequenceConversionArray()
+{
+    // ensure that in JS the returned sequences act just like normal JS Arrays.
+    QUrl qmlFile = TEST_FILE("sequenceConversion.array.qml");
+    QDeclarativeComponent component(&engine, qmlFile);
+    QObject *object = component.create();
+    QVERIFY(object != 0);
+    //QMetaObject::invokeMethod(object, "indexedAccess");
+    //QVERIFY(object->property("success").toBool());
+    //QMetaObject::invokeMethod(object, "arrayOperations");
+    //QVERIFY(object->property("success").toBool());
+    QMetaObject::invokeMethod(object, "testEqualitySemantics");
+    QVERIFY(object->property("success").toBool());
+    //QMetaObject::invokeMethod(object, "testReferenceDeletion");
+    //QCOMPARE(object->property("referenceDeletion").toBool(), true);
+    delete object;
+}
+
+void tst_qdeclarativeecmascript::sequenceConversionThreads()
+{
+    // ensure that sequence conversion operations work correctly in a worker thread
+    // and that serialisation between the main and worker thread succeeds.
+    QUrl qmlFile = TEST_FILE("sequenceConversion.threads.qml");
+    QDeclarativeComponent component(&engine, qmlFile);
+    QObject *object = component.create();
+    QVERIFY(object != 0);
+
+    QMetaObject::invokeMethod(object, "testIntSequence");
+    QTRY_VERIFY(object->property("finished").toBool());
+    QVERIFY(object->property("success").toBool());
+
+    QMetaObject::invokeMethod(object, "testQrealSequence");
+    QTRY_VERIFY(object->property("finished").toBool());
+    QVERIFY(object->property("success").toBool());
+
+    QMetaObject::invokeMethod(object, "testBoolSequence");
+    QTRY_VERIFY(object->property("finished").toBool());
+    QVERIFY(object->property("success").toBool());
+
+    QMetaObject::invokeMethod(object, "testStringSequence");
+    QTRY_VERIFY(object->property("finished").toBool());
+    QVERIFY(object->property("success").toBool());
+
+    QMetaObject::invokeMethod(object, "testQStringSequence");
+    QTRY_VERIFY(object->property("finished").toBool());
+    QVERIFY(object->property("success").toBool());
+
+    QMetaObject::invokeMethod(object, "testUrlSequence");
+    QTRY_VERIFY(object->property("finished").toBool());
+    QVERIFY(object->property("success").toBool());
+
+    delete object;
+}
+
+void tst_qdeclarativeecmascript::sequenceConversionBindings()
+{
+    {
+        QUrl qmlFile = TEST_FILE("sequenceConversion.bindings.qml");
+        QDeclarativeComponent component(&engine, qmlFile);
+        QObject *object = component.create();
+        QVERIFY(object != 0);
+        QList<int> intList; intList << 1 << 2 << 3 << 12 << 7;
+        QCOMPARE(object->property("boundSequence").value<QList<int> >(), intList);
+        QCOMPARE(object->property("boundElement").toInt(), intList.at(3));
+        QList<int> intListTwo; intListTwo << 1 << 2 << 3 << 12 << 14;
+        QCOMPARE(object->property("boundSequenceTwo").value<QList<int> >(), intListTwo);
+        delete object;
+    }
+
+    {
+        QUrl qmlFile = TEST_FILE("sequenceConversion.bindings.error.qml");
+        QString warning = QString(QLatin1String("%1:17: Unable to assign QList<int> to QList<bool>")).arg(qmlFile.toString());
+        QTest::ignoreMessage(QtWarningMsg, warning.toAscii().constData());
+        QDeclarativeComponent component(&engine, qmlFile);
+        QObject *object = component.create();
+        QVERIFY(object != 0);
+        delete object;
+    }
+}
+
+void tst_qdeclarativeecmascript::sequenceConversionCopy()
+{
+    QUrl qmlFile = TEST_FILE("sequenceConversion.copy.qml");
+    QDeclarativeComponent component(&engine, qmlFile);
+    QObject *object = component.create();
+    QVERIFY(object != 0);
+    QMetaObject::invokeMethod(object, "testCopySequences");
+    QCOMPARE(object->property("success").toBool(), true);
+    QMetaObject::invokeMethod(object, "readSequenceCopyElements");
+    QCOMPARE(object->property("success").toBool(), true);
+    QMetaObject::invokeMethod(object, "testEqualitySemantics");
+    QCOMPARE(object->property("success").toBool(), true);
+    delete object;
+}
+
 // Test that assigning a null object works 
 // Regressed with: df1788b4dbbb2826ae63f26bdf166342595343f4
 void tst_qdeclarativeecmascript::nullObjectBinding()