Merge branch '4.7' of scm.dev.nokia.troll.no:qt/qt-qml into 4.7-integration

* '4.7' of scm.dev.nokia.troll.no:qt/qt-qml: (144 commits)
  Don't crash if Connections::target is changed by one of its signal handlers
  Update visual tests after some painter updates.
  Add missing Q_DISABLE_COPYs.
  Use Q_DECLARE_PRIVATE for private slot.
  Workaround no longer needed.
  Rename QDeclarativeExpression::value() to evaluate().
  Continue to register base type.
  Doc.
  Remove the deprecated wrap property.
  Do not treat images in qml examples differently.
  Replace Flickable overshoot property with boundsBehavior
  Autotests and doc
  Give error on attempt to import types from too-early version number.
  Remove (undocumented) QML bindings for effects.
  De-straighten them lines.
  Doc: fix QStringList model doc (really).
  Doc: fix QStringList model docs
  Change return type to match value().
  Add duration and easing properties to AnchorAnimation.
  Autotest
  ...

60 files changed, 1048 insertions, 622 deletions

diff --git a/src/declarative/qml/parser/qdeclarativejs.g b/src/declarative/qml/parser/qdeclarativejs.g
index ba9338e..1b66ba0 100644
--- a/src/declarative/qml/parser/qdeclarativejs.g
+++ b/src/declarative/qml/parser/qdeclarativejs.g
@@ -1376,7 +1376,7 @@ case $rule_number: {
 } break;
 ./
 
-PropertyName: T_IDENTIFIER %prec REDUCE_HERE ;
+PropertyName: T_IDENTIFIER %prec SHIFT_THERE ;
 /.
 case $rule_number: {
   AST::IdentifierPropertyName *node = makeAstNode<AST::IdentifierPropertyName> (driver->nodePool(), sym(1).sval);
diff --git a/src/declarative/qml/parser/qdeclarativejsgrammar.cpp b/src/declarative/qml/parser/qdeclarativejsgrammar.cpp
index 52e979a..b87d8f4 100644
--- a/src/declarative/qml/parser/qdeclarativejsgrammar.cpp
+++ b/src/declarative/qml/parser/qdeclarativejsgrammar.cpp
@@ -40,7 +40,7 @@
 ****************************************************************************/
 
 // This file was generated by qlalr - DO NOT EDIT!
-#include "private/qdeclarativejsgrammar_p.h"
+#include "qdeclarativejsgrammar_p.h"
 
 QT_BEGIN_NAMESPACE
 
@@ -346,9 +346,9 @@ const short QDeclarativeJSGrammar::action_index [] = {
 
 const short QDeclarativeJSGrammar::action_info [] = {
   399, 352, 345, -101, 343, 457, 440, 403, 257, -112, 
-  -125, -131, -123, -98, -120, 348, -128, 389, 453, 391, 
+  -125, -131, -123, 346, -120, 348, -128, 389, 453, 391, 
   416, 401, 408, 563, -101, -123, 416, -120, 539, -131, 
-  -98, -112, -125, 348, 257, 99, 71, 645, 621, 101, 
+  346, -112, -125, 348, 257, 99, 71, 645, 621, 101, 
   -128, 440, 141, 621, 164, 431, 539, 430, 453, 573, 
   457, 444, 440, 424, 71, 424, 101, 446, 559, 420, 
   424, 448, 539, 440, 570, 539, 466, 527, 312, 346, 
diff --git a/src/declarative/qml/parser/qdeclarativejslexer.cpp b/src/declarative/qml/parser/qdeclarativejslexer.cpp
index 3a0e897..975ad4c 100644
--- a/src/declarative/qml/parser/qdeclarativejslexer.cpp
+++ b/src/declarative/qml/parser/qdeclarativejslexer.cpp
@@ -484,6 +484,8 @@ int Lexer::lex()
         stackToken = -1;
     }
 
+    bool identifierWithEscapedUnicode = false;
+
     while (!done) {
         switch (state) {
         case Start:
@@ -523,7 +525,26 @@ int Lexer::lex()
                 state = InString;
                 multiLineString = false;
                 stringType = current;
+            } else if (current == '\\' && next1 == 'u') {
+                identifierWithEscapedUnicode = true;
+                recordStartPos();
+
+                shift(2); // skip the unicode escape prefix `\u'
+
+                if (isHexDigit(current) && isHexDigit(next1) &&
+                     isHexDigit(next2) && isHexDigit(next3)) {
+                    record16(convertUnicode(current, next1, next2, next3));
+                    shift(3);
+                    state = InIdentifier;
+                } else {
+                    setDone(Bad);
+                    err = IllegalUnicodeEscapeSequence;
+                    errmsg = QCoreApplication::translate("QDeclarativeParser", "Illegal unicode escape sequence");
+                    break;
+                }
+
             } else if (isIdentLetter(current)) {
+                identifierWithEscapedUnicode = false;
                 recordStartPos();
                 record16(current);
                 state = InIdentifier;
@@ -683,6 +704,21 @@ int Lexer::lex()
             if (isIdentLetter(current) || isDecimalDigit(current)) {
                 record16(current);
                 break;
+            } else if (current == '\\' && next1 == 'u') {
+                identifierWithEscapedUnicode = true;
+                shift(2); // skip the unicode escape prefix `\u'
+
+                if (isHexDigit(current) && isHexDigit(next1) &&
+                     isHexDigit(next2) && isHexDigit(next3)) {
+                    record16(convertUnicode(current, next1, next2, next3));
+                    shift(3);
+                    break;
+                } else {
+                    setDone(Bad);
+                    err = IllegalUnicodeEscapeSequence;
+                    errmsg = QCoreApplication::translate("QDeclarativeParser", "Illegal unicode escape sequence");
+                    break;
+                }
             }
             setDone(Identifier);
             break;
@@ -825,7 +861,11 @@ int Lexer::lex()
             delimited = true;
         return token;
     case Identifier:
-        if ((token = findReservedWord(buffer16, pos16)) < 0) {
+        token = -1;
+        if (! identifierWithEscapedUnicode)
+            token = findReservedWord(buffer16, pos16);
+
+        if (token < 0) {
             /* TODO: close leak on parse error. same holds true for String */
             if (driver)
                 qsyylval.ustr = driver->intern(buffer16, pos16);
@@ -1104,47 +1144,97 @@ void Lexer::recordStartPos()
 bool Lexer::scanRegExp(RegExpBodyPrefix prefix)
 {
     pos16 = 0;
-    bool lastWasEscape = false;
+    pattern = 0;
 
     if (prefix == EqualPrefix)
         record16(QLatin1Char('='));
 
-    while (1) {
-        if (isLineTerminator() || current == 0) {
+    while (true) {
+        switch (current) {
+
+        case 0: // eof
+        case '\n': case '\r': // line terminator
             errmsg = QCoreApplication::translate("QDeclarativeParser", "Unterminated regular expression literal");
             return false;
-        }
-        else if (current != '/' || lastWasEscape == true)
-            {
-                record16(current);
-                lastWasEscape = !lastWasEscape && (current == '\\');
-            }
-        else {
-            if (driver)
+
+        case '/':
+            shift(1);
+
+            if (driver) // create the pattern
                 pattern = driver->intern(buffer16, pos16);
-            else
-                pattern = 0;
+
+            // scan the flags
             pos16 = 0;
+            flags = 0;
+            while (isIdentLetter(current)) {
+                int flag = Ecma::RegExp::flagFromChar(current);
+                if (flag == 0) {
+                    errmsg = QCoreApplication::translate("QDeclarativeParser", "Invalid regular expression flag '%0'")
+                             .arg(QChar(current));
+                    return false;
+                }
+                flags |= flag;
+                record16(current);
+                shift(1);
+            }
+            return true;
+
+        case '\\':
+            // regular expression backslash sequence
+            record16(current);
+            shift(1);
+
+            if (! current || isLineTerminator()) {
+                errmsg = QCoreApplication::translate("QDeclarativeParser", "Unterminated regular expression backslash sequence");
+                return false;
+            }
+
+            record16(current);
             shift(1);
             break;
-        }
-        shift(1);
-    }
 
-    flags = 0;
-    while (isIdentLetter(current)) {
-        int flag = Ecma::RegExp::flagFromChar(current);
-        if (flag == 0) {
-            errmsg = QCoreApplication::translate("QDeclarativeParser", "Invalid regular expression flag '%0'")
-                     .arg(QChar(current));
-            return false;
-        }
-        flags |= flag;
-        record16(current);
-        shift(1);
-    }
+        case '[':
+            // regular expression class
+            record16(current);
+            shift(1);
+
+            while (current && ! isLineTerminator()) {
+                if (current == ']')
+                    break;
+                else if (current == '\\') {
+                    // regular expression backslash sequence
+                    record16(current);
+                    shift(1);
+
+                    if (! current || isLineTerminator()) {
+                        errmsg = QCoreApplication::translate("QDeclarativeParser", "Unterminated regular expression backslash sequence");
+                        return false;
+                    }
+
+                    record16(current);
+                    shift(1);
+                } else {
+                    record16(current);
+                    shift(1);
+                }
+            }
+
+            if (current != ']') {
+                errmsg = QCoreApplication::translate("QDeclarativeParser", "Unterminated regular expression class");
+                return false;
+            }
+
+            record16(current);
+            shift(1); // skip ]
+            break;
+
+        default:
+            record16(current);
+            shift(1);
+        } // switch
+    } // while
 
-    return true;
+    return false;
 }
 
 void Lexer::syncProhibitAutomaticSemicolon()
diff --git a/src/declarative/qml/qdeclarative.h b/src/declarative/qml/qdeclarative.h
index 6e36d4f..d75f0a8 100644
--- a/src/declarative/qml/qdeclarative.h
+++ b/src/declarative/qml/qdeclarative.h
@@ -100,6 +100,7 @@ int qmlRegisterType()
         qRegisterMetaType<T *>(pointerName.constData()),
         qRegisterMetaType<QDeclarativeListProperty<T> >(listName.constData()),
         0, 0,
+        QString(),
 
         0, 0, 0, 0, &T::staticMetaObject,
 
@@ -118,8 +119,10 @@ int qmlRegisterType()
     return QDeclarativePrivate::registerType(type);
 }
 
+int qmlRegisterTypeNotAvailable(const char *uri, int versionMajor, int versionMinor, const char *qmlName, const QString& message);
+
 template<typename T>
-int qmlRegisterUncreatableType(const char *uri, int versionMajor, int versionMinor, const char *qmlName)
+int qmlRegisterUncreatableType(const char *uri, int versionMajor, int versionMinor, const char *qmlName, const QString& reason)
 {
     QByteArray name(T::staticMetaObject.className());
 
@@ -132,6 +135,7 @@ int qmlRegisterUncreatableType(const char *uri, int versionMajor, int versionMin
         qRegisterMetaType<T *>(pointerName.constData()),
         qRegisterMetaType<QDeclarativeListProperty<T> >(listName.constData()),
         0, 0,
+        reason,
 
         uri, versionMajor, versionMinor, qmlName, &T::staticMetaObject,
 
@@ -164,6 +168,7 @@ int qmlRegisterType(const char *uri, int versionMajor, int versionMinor, const c
         qRegisterMetaType<T *>(pointerName.constData()),
         qRegisterMetaType<QDeclarativeListProperty<T> >(listName.constData()),
         sizeof(T), QDeclarativePrivate::createInto<T>,
+        QString(),
 
         uri, versionMajor, versionMinor, qmlName, &T::staticMetaObject,
 
@@ -196,6 +201,7 @@ int qmlRegisterExtendedType()
         qRegisterMetaType<T *>(pointerName.constData()),
         qRegisterMetaType<QDeclarativeListProperty<T> >(listName.constData()),
         0, 0,
+        QString(),
 
         0, 0, 0, 0, &T::staticMetaObject,
 
@@ -236,6 +242,7 @@ int qmlRegisterExtendedType(const char *uri, int versionMajor, int versionMinor,
         qRegisterMetaType<T *>(pointerName.constData()),
         qRegisterMetaType<QDeclarativeListProperty<T> >(listName.constData()),
         sizeof(T), QDeclarativePrivate::createInto<T>,
+        QString(),
 
         uri, versionMajor, versionMinor, qmlName, &T::staticMetaObject,
 
@@ -276,9 +283,9 @@ int qmlRegisterInterface(const char *typeName)
 
 template<typename T>
 int qmlRegisterCustomType(const char *uri, int versionMajor, int versionMinor, 
-                          const char *qmlName, const char *typeName, QDeclarativeCustomParser *parser)
+                          const char *qmlName, QDeclarativeCustomParser *parser)
 {
-    QByteArray name(typeName);
+    QByteArray name(T::staticMetaObject.className());
 
     QByteArray pointerName(name + '*');
     QByteArray listName("QDeclarativeListProperty<" + name + ">");
@@ -289,6 +296,7 @@ int qmlRegisterCustomType(const char *uri, int versionMajor, int versionMinor,
         qRegisterMetaType<T *>(pointerName.constData()),
         qRegisterMetaType<QDeclarativeListProperty<T> >(listName.constData()),
         sizeof(T), QDeclarativePrivate::createInto<T>,
+        QString(),
 
         uri, versionMajor, versionMinor, qmlName, &T::staticMetaObject,
 
diff --git a/src/declarative/qml/qdeclarativebinding.cpp b/src/declarative/qml/qdeclarativebinding.cpp
index 25492ac..d44e7fb 100644
--- a/src/declarative/qml/qdeclarativebinding.cpp
+++ b/src/declarative/qml/qdeclarativebinding.cpp
@@ -156,6 +156,9 @@ void QDeclarativeBinding::update(QDeclarativePropertyPrivate::WriteFlags flags)
             QScriptValue scriptValue = d->scriptValue(0, &isUndefined);
             if (data->property.propertyTypeCategory() == QDeclarativeProperty::List) {
                 value = ep->scriptValueToVariant(scriptValue, qMetaTypeId<QList<QObject *> >());
+            } else if (scriptValue.isNull() && 
+                       data->property.propertyTypeCategory() == QDeclarativeProperty::Object) {
+                value = QVariant::fromValue((QObject *)0);
             } else {
                 value = ep->scriptValueToVariant(scriptValue, data->property.propertyType());
                 if (value.userType() == QMetaType::QObjectStar && !qvariant_cast<QObject*>(value)) {
@@ -168,6 +171,7 @@ void QDeclarativeBinding::update(QDeclarativePropertyPrivate::WriteFlags flags)
                 }
             }
 
+
             if (data->error.isValid()) {
 
             } else if (isUndefined && data->property.isResettable()) {
@@ -210,8 +214,7 @@ void QDeclarativeBinding::update(QDeclarativePropertyPrivate::WriteFlags flags)
             }
 
             if (data->error.isValid()) {
-               if (!data->addError(ep)) 
-                   qWarning().nospace() << qPrintable(this->error().toString());
+               if (!data->addError(ep)) ep->warning(this->error());
             } else {
                 data->removeError();
             }
@@ -358,8 +361,10 @@ void QDeclarativeAbstractBinding::removeFromObject()
 
 void QDeclarativeAbstractBinding::clear()
 {
-    if (m_mePtr)
+    if (m_mePtr) {
         *m_mePtr = 0;
+        m_mePtr = 0;
+    }
 }
 
 QString QDeclarativeAbstractBinding::expression() const
diff --git a/src/declarative/qml/qdeclarativeboundsignal.cpp b/src/declarative/qml/qdeclarativeboundsignal.cpp
index 8c7a977..89f1256 100644
--- a/src/declarative/qml/qdeclarativeboundsignal.cpp
+++ b/src/declarative/qml/qdeclarativeboundsignal.cpp
@@ -95,10 +95,8 @@ QDeclarativeAbstractBoundSignal::~QDeclarativeAbstractBoundSignal()
 
 QDeclarativeBoundSignal::QDeclarativeBoundSignal(QObject *scope, const QMetaMethod &signal, 
                                QObject *parent)
-: m_expression(0), m_signal(signal), m_paramsValid(false), m_params(0)
+: m_expression(0), m_signal(signal), m_paramsValid(false), m_isEvaluating(false), m_params(0)
 {
-    // A cached evaluation of the QDeclarativeExpression::value() slot index.
-    //
     // This is thread safe.  Although it may be updated by two threads, they
     // will both set it to the same value - so the worst thing that can happen
     // is that they both do the work to figure it out.  Boo hoo.
@@ -111,10 +109,8 @@ QDeclarativeBoundSignal::QDeclarativeBoundSignal(QObject *scope, const QMetaMeth
 QDeclarativeBoundSignal::QDeclarativeBoundSignal(QDeclarativeContext *ctxt, const QString &val, 
                                QObject *scope, const QMetaMethod &signal,
                                QObject *parent)
-: m_expression(0), m_signal(signal), m_paramsValid(false), m_params(0)
+: m_expression(0), m_signal(signal), m_paramsValid(false), m_isEvaluating(false), m_params(0)
 {
-    // A cached evaluation of the QDeclarativeExpression::value() slot index.
-    //
     // This is thread safe.  Although it may be updated by two threads, they
     // will both set it to the same value - so the worst thing that can happen
     // is that they both do the work to figure it out.  Boo hoo.
@@ -169,6 +165,7 @@ QDeclarativeBoundSignal *QDeclarativeBoundSignal::cast(QObject *o)
 int QDeclarativeBoundSignal::qt_metacall(QMetaObject::Call c, int id, void **a)
 {
     if (c == QMetaObject::InvokeMetaMethod && id == evaluateIdx) {
+        m_isEvaluating = true;
         if (!m_paramsValid) {
             if (!m_signal.parameterTypes().isEmpty())
                 m_params = new QDeclarativeBoundSignalParameters(m_signal, this);
@@ -179,9 +176,10 @@ int QDeclarativeBoundSignal::qt_metacall(QMetaObject::Call c, int id, void **a)
         if (m_expression && m_expression->engine()) {
             QDeclarativeExpressionPrivate::get(m_expression)->value(m_params);
             if (m_expression && m_expression->hasError())
-                qWarning().nospace() << qPrintable(m_expression->error().toString());
+                QDeclarativeEnginePrivate::warning(m_expression->engine(), m_expression->error());
         }
         if (m_params) m_params->clearValues();
+        m_isEvaluating = false;
         return -1;
     } else {
         return QObject::qt_metacall(c, id, a);
diff --git a/src/declarative/qml/qdeclarativeboundsignal_p.h b/src/declarative/qml/qdeclarativeboundsignal_p.h
index bba4eec..06900d7 100644
--- a/src/declarative/qml/qdeclarativeboundsignal_p.h
+++ b/src/declarative/qml/qdeclarativeboundsignal_p.h
@@ -83,6 +83,8 @@ public:
     QDeclarativeExpression *expression() const;
     QDeclarativeExpression *setExpression(QDeclarativeExpression *);
 
+    bool isEvaluating() const { return m_isEvaluating; }
+
     static QDeclarativeBoundSignal *cast(QObject *);
 
 protected:
@@ -91,7 +93,8 @@ protected:
 private:
     QDeclarativeExpression *m_expression;
     QMetaMethod m_signal;
-    bool m_paramsValid;
+    bool m_paramsValid : 1;
+    bool m_isEvaluating : 1;
     QDeclarativeBoundSignalParameters *m_params;
 };
 
diff --git a/src/declarative/qml/qdeclarativecompiledbindings.cpp b/src/declarative/qml/qdeclarativecompiledbindings.cpp
index 6fdf706..6596aba 100644
--- a/src/declarative/qml/qdeclarativecompiledbindings.cpp
+++ b/src/declarative/qml/qdeclarativecompiledbindings.cpp
@@ -888,13 +888,6 @@ void QDeclarativeCompiledBindingsPrivate::findgeneric(Register *output,
             return;
         }
 
-        for (int ii = 0; ii < context->scripts.count(); ++ii) {
-            QScriptValue function = QScriptDeclarativeClass::function(context->scripts.at(ii), name);
-            if (function.isValid()) {
-                qFatal("Binding optimizer resolved name to QScript method");
-            }
-        }
-
         if (QObject *root = context->contextObject) {
 
             if (findproperty(root, output, enginePriv, subIdx, name, isTerminal))
@@ -938,7 +931,7 @@ static void throwException(int id, QDeclarativeDelayedError *error,
         error->error.setColumn(-1);
     }
     if (!context->engine || !error->addError(QDeclarativeEnginePrivate::get(context->engine)))
-        qWarning() << error->error;
+        QDeclarativeEnginePrivate::warning(context->engine, error->error);
 }
 
 static void dumpInstruction(const Instr *instr)
diff --git a/src/declarative/qml/qdeclarativecompiler.cpp b/src/declarative/qml/qdeclarativecompiler.cpp
index 065009a..1727687 100644
--- a/src/declarative/qml/qdeclarativecompiler.cpp
+++ b/src/declarative/qml/qdeclarativecompiler.cpp
@@ -571,8 +571,12 @@ bool QDeclarativeCompiler::compile(QDeclarativeEngine *engine,
         QDeclarativeScriptParser::TypeReference *parserRef = unit->data.referencedTypes().at(ii);
         if (tref.type) {
             ref.type = tref.type;
-            if (!ref.type->isCreatable()) 
-                COMPILE_EXCEPTION(parserRef->refObjects.first(), tr( "Element is not creatable."));
+            if (!ref.type->isCreatable()) {
+                QString err = ref.type->noCreationReason();
+                if (err.isEmpty())
+                    err = tr( "Element is not creatable.");
+                COMPILE_EXCEPTION(parserRef->refObjects.first(), err);
+            }
         } else if (tref.unit) {
             ref.component = tref.unit->toComponent(engine);
 
@@ -733,10 +737,6 @@ bool QDeclarativeCompiler::buildObject(Object *obj, const BindingContext &ctxt)
         return true;
     } 
 
-    // Build any script blocks for this type
-    for (int ii = 0; ii < obj->scriptBlockObjects.count(); ++ii)
-        COMPILE_CHECK(buildScript(obj, obj->scriptBlockObjects.at(ii)));
-
     // Object instantiations reset the binding context
     BindingContext objCtxt(obj);
 
@@ -868,12 +868,14 @@ bool QDeclarativeCompiler::buildObject(Object *obj, const BindingContext &ctxt)
         defaultProperty->release();
 
     // Compile custom parser parts
-    if (isCustomParser && !customProps.isEmpty()) {
+    if (isCustomParser/* && !customProps.isEmpty()*/) {
         QDeclarativeCustomParser *cp = output->types.at(obj->type).type->customParser();
         cp->clearErrors();
         cp->compiler = this;
+        cp->object = obj;
         obj->custom = cp->compile(customProps);
         cp->compiler = 0;
+        cp->object = 0;
         foreach (QDeclarativeError err, cp->errors()) {
             err.setUrl(output->url);
             exceptions << err;
@@ -961,17 +963,6 @@ void QDeclarativeCompiler::genObject(QDeclarativeParser::Object *obj)
         output->bytecode << id;
     }
 
-    // Set any script blocks
-    for (int ii = 0; ii < obj->scripts.count(); ++ii) {
-        QDeclarativeInstruction script;
-        script.type = QDeclarativeInstruction::StoreScript;
-        script.line = 0; // ###
-        int idx = output->scripts.count();
-        output->scripts << obj->scripts.at(ii);
-        script.storeScript.value = idx;
-        output->bytecode << script;
-    }
-
     // Begin the class
     if (obj->parserStatusCast != -1) {
         QDeclarativeInstruction begin;
@@ -1177,9 +1168,6 @@ bool QDeclarativeCompiler::buildComponent(QDeclarativeParser::Object *obj,
        (obj->properties.count() == 1 && obj->properties.begin().key() != "id"))
         COMPILE_EXCEPTION(*obj->properties.begin(), tr("Component elements may not contain properties other than id"));
        
-    if (!obj->scriptBlockObjects.isEmpty())
-        COMPILE_EXCEPTION(obj->scriptBlockObjects.first(), tr("Component elements may not contain script blocks"));
-
     if (obj->properties.count())
         idProp = *obj->properties.begin();
 
@@ -1203,6 +1191,13 @@ bool QDeclarativeCompiler::buildComponent(QDeclarativeParser::Object *obj,
         (obj->defaultProperty->values.count() == 1 && !obj->defaultProperty->values.first()->object)))
         COMPILE_EXCEPTION(obj, tr("Invalid component body specification"));
 
+    if (!obj->dynamicProperties.isEmpty())
+        COMPILE_EXCEPTION(obj, tr("Component objects cannot declare new properties."));
+    if (!obj->dynamicSignals.isEmpty())
+        COMPILE_EXCEPTION(obj, tr("Component objects cannot declare new signals."));
+    if (!obj->dynamicSlots.isEmpty())
+        COMPILE_EXCEPTION(obj, tr("Component objects cannot declare new functions."));
+
     Object *root = 0;
     if (obj->defaultProperty && obj->defaultProperty->values.count())
         root = obj->defaultProperty->values.first()->object;
@@ -1216,94 +1211,6 @@ bool QDeclarativeCompiler::buildComponent(QDeclarativeParser::Object *obj,
     return true;
 }
 
-bool QDeclarativeCompiler::buildScript(QDeclarativeParser::Object *obj, QDeclarativeParser::Object *script)
-{
-    qWarning().nospace() << qPrintable(output->url.toString()) << ":" << obj->location.start.line << ":" << obj->location.start.column << ": Script blocks have been deprecated.  Support will be removed entirely shortly.";
-
-    Object::ScriptBlock scriptBlock;
-
-    if (script->properties.count() == 1 && 
-        script->properties.begin().key() == QByteArray("source")) {
-
-        Property *source = *script->properties.begin();
-        if (script->defaultProperty)
-            COMPILE_EXCEPTION(source, tr("Invalid Script block.  Specify either the source property or inline script"));
-
-        if (source->value || source->values.count() != 1 ||
-            source->values.at(0)->object || !source->values.at(0)->value.isStringList())
-            COMPILE_EXCEPTION(source, tr("Invalid Script source value"));
-
-        QStringList sources = source->values.at(0)->value.asStringList();
-
-        for (int jj = 0; jj < sources.count(); ++jj) {
-            QString sourceUrl = output->url.resolved(QUrl(sources.at(jj))).toString();
-            QString scriptCode;
-            int lineNumber = 1;
-
-            for (int ii = 0; ii < unit->resources.count(); ++ii) {
-                if (unit->resources.at(ii)->url == sourceUrl) {
-                    scriptCode = QString::fromUtf8(unit->resources.at(ii)->data);
-                    break;
-                }
-            }
-
-            if (!scriptCode.isEmpty()) {
-                scriptBlock.codes.append(scriptCode);
-                scriptBlock.files.append(sourceUrl);
-                scriptBlock.lineNumbers.append(lineNumber);
-                scriptBlock.pragmas.append(Object::ScriptBlock::None);
-            }
-        }
-
-    } else if (!script->properties.isEmpty()) {
-        COMPILE_EXCEPTION(*script->properties.begin(), tr("Properties cannot be set on Script block"));
-    } else if (script->defaultProperty) {
-
-        QString scriptCode;
-        int lineNumber = 1;
-        QString sourceUrl = output->url.toString();
-
-        QDeclarativeParser::Location currentLocation;
-
-        for (int ii = 0; ii < script->defaultProperty->values.count(); ++ii) {
-            Value *v = script->defaultProperty->values.at(ii);
-            if (lineNumber == 1)
-                lineNumber = v->location.start.line;
-            if (v->object || !v->value.isString())
-                COMPILE_EXCEPTION(v, tr("Invalid Script block"));
-
-            if (ii == 0) {
-                currentLocation = v->location.start;
-                scriptCode.append(QString(currentLocation.column, QLatin1Char(' ')));
-            }
-
-            while (currentLocation.line < v->location.start.line) {
-                scriptCode.append(QLatin1Char('\n'));
-                currentLocation.line++;
-                currentLocation.column = 0;
-            }
-
-            scriptCode.append(QString(v->location.start.column - currentLocation.column, QLatin1Char(' ')));
-
-            scriptCode += v->value.asString();
-            currentLocation = v->location.end;
-            currentLocation.column++;
-        }
-
-        if (!scriptCode.isEmpty()) {
-            scriptBlock.codes.append(scriptCode);
-            scriptBlock.files.append(sourceUrl);
-            scriptBlock.lineNumbers.append(lineNumber);
-            scriptBlock.pragmas.append(Object::ScriptBlock::None);
-        }
-    }
-
-    if (!scriptBlock.codes.isEmpty())
-        obj->scripts << scriptBlock;
-
-    return true;
-}
-
 bool QDeclarativeCompiler::buildComponentFromRoot(QDeclarativeParser::Object *obj,
                                          const BindingContext &ctxt)
 {
@@ -1351,7 +1258,7 @@ bool QDeclarativeCompiler::buildSubObject(Object *obj, const BindingContext &ctx
 
 int QDeclarativeCompiler::componentTypeRef()
 {
-    QDeclarativeType *t = QDeclarativeMetaType::qmlType("Qt/Component",4,6);
+    QDeclarativeType *t = QDeclarativeMetaType::qmlType("Qt/Component",4,7);
     for (int ii = output->types.count() - 1; ii >= 0; --ii) {
         if (output->types.at(ii).type == t)
             return ii;
@@ -2902,25 +2809,6 @@ bool QDeclarativeCompiler::canCoerce(int to, QDeclarativeParser::Object *from)
     return false;
 }
 
-/*!
-    Returns true if from can be assigned to a (QObject) property of type
-    to.
-*/
-bool QDeclarativeCompiler::canCoerce(int to, int from)
-{
-    const QMetaObject *toMo = 
-        QDeclarativeEnginePrivate::get(engine)->rawMetaObjectForType(to);
-    const QMetaObject *fromMo = 
-        QDeclarativeEnginePrivate::get(engine)->rawMetaObjectForType(from);
-
-    while (fromMo) {
-        if (QDeclarativePropertyPrivate::equal(fromMo, toMo))
-            return true;
-        fromMo = fromMo->superClass();
-    }
-    return false;
-}
-
 QDeclarativeType *QDeclarativeCompiler::toQmlType(QDeclarativeParser::Object *from)
 {
     // ### Optimize
diff --git a/src/declarative/qml/qdeclarativecompiler_p.h b/src/declarative/qml/qdeclarativecompiler_p.h
index 867db2c..fefab7a 100644
--- a/src/declarative/qml/qdeclarativecompiler_p.h
+++ b/src/declarative/qml/qdeclarativecompiler_p.h
@@ -186,7 +186,6 @@ private:
 
 
     bool buildObject(QDeclarativeParser::Object *obj, const BindingContext &);
-    bool buildScript(QDeclarativeParser::Object *obj, QDeclarativeParser::Object *script);
     bool buildComponent(QDeclarativeParser::Object *obj, const BindingContext &);
     bool buildSubObject(QDeclarativeParser::Object *obj, const BindingContext &);
     bool buildSignal(QDeclarativeParser::Property *prop, QDeclarativeParser::Object *obj, 
@@ -275,7 +274,6 @@ private:
 
     static QDeclarativeType *toQmlType(QDeclarativeParser::Object *from);
     bool canCoerce(int to, QDeclarativeParser::Object *from);
-    bool canCoerce(int to, int from);
 
     QStringList deferredProperties(QDeclarativeParser::Object *);
 
diff --git a/src/declarative/qml/qdeclarativecomponent.cpp b/src/declarative/qml/qdeclarativecomponent.cpp
index 3e4651c..3899e73 100644
--- a/src/declarative/qml/qdeclarativecomponent.cpp
+++ b/src/declarative/qml/qdeclarativecomponent.cpp
@@ -67,14 +67,14 @@ int statusId = qRegisterMetaType<QDeclarativeComponent::Status>("QDeclarativeCom
 
 /*!
     \class QDeclarativeComponent
-  \since 4.7
+    \since 4.7
     \brief The QDeclarativeComponent class encapsulates a QML component description.
     \mainclass
 */
 
 /*!
     \qmlclass Component QDeclarativeComponent
-  \since 4.7
+    \since 4.7
     \brief The Component element encapsulates a QML component description.
 
     Components are reusable, encapsulated Qml element with a well-defined interface.
@@ -86,26 +86,26 @@ int statusId = qRegisterMetaType<QDeclarativeComponent::Status>("QDeclarativeCom
     file containing it.
 
     \qml
-Item {
-    Component {
-        id: redSquare
-        Rectangle {
-            color: "red"
-            width: 10
-            height: 10
+    Item {
+        Component {
+            id: redSquare
+            Rectangle {
+                color: "red"
+                width: 10
+                height: 10
+            }
         }
+        Loader { sourceComponent: redSquare }
+        Loader { sourceComponent: redSquare; x: 20 }
     }
-    Loader { sourceComponent: redSquare }
-    Loader { sourceComponent: redSquare; x: 20 }
-}
     \endqml
+*/
 
-    \section1 Attached Properties
-
-    \e onCompleted
+/*!
+    \qmlattachedsignal Component::onCompleted()
 
     Emitted after component "startup" has completed.  This can be used to
-    execute script code at startup, once the full QML environment has been 
+    execute script code at startup, once the full QML environment has been
     established.
 
     The \c {Component::onCompleted} attached property can be applied to
@@ -120,8 +120,10 @@ Item {
         }
     }
     \endqml
+*/
 
-    \e onDestruction
+/*!
+    \qmlattachedsignal Component::onDestruction()
 
     Emitted as the component begins destruction.  This can be used to undo
     work done in the onCompleted signal, or other imperative code in your
@@ -129,7 +131,7 @@ Item {
 
     The \c {Component::onDestruction} attached property can be applied to
     any element.  However, it applies to the destruction of the component as
-    a whole, and not the destruction of the specific object.  The order of 
+    a whole, and not the destruction of the specific object.  The order of
     running the \c onDestruction scripts is undefined.
 
     \qml
@@ -530,10 +532,8 @@ QScriptValue QDeclarativeComponent::createObject()
 {
     Q_D(QDeclarativeComponent);
     QDeclarativeContext* ctxt = creationContext();
-    if(!ctxt){
-        qWarning() << QLatin1String("createObject can only be used in QML");
+    if(!ctxt)
         return QScriptValue();
-    }
     QObject* ret = create(ctxt);
     if (!ret)
         return QScriptValue();
@@ -613,17 +613,17 @@ QDeclarativeComponentPrivate::beginCreate(QDeclarativeContextData *context, cons
 {
     Q_Q(QDeclarativeComponent);
     if (!context) {
-        qWarning("QDeclarativeComponent::beginCreate(): Cannot create a component in a null context");
+        qWarning("QDeclarativeComponent: Cannot create a component in a null context");
         return 0;
     }
 
     if (!context->isValid()) {
-        qWarning("QDeclarativeComponent::beginCreate(): Cannot create a component in an invalid context");
+        qWarning("QDeclarativeComponent: Cannot create a component in an invalid context");
         return 0;
     }
 
     if (context->engine != engine) {
-        qWarning("QDeclarativeComponent::beginCreate(): Must create component in context from the same QDeclarativeEngine");
+        qWarning("QDeclarativeComponent: Must create component in context from the same QDeclarativeEngine");
         return 0;
     }
 
@@ -766,7 +766,7 @@ void QDeclarativeComponentPrivate::complete(QDeclarativeEnginePrivate *enginePri
         enginePriv->inProgressCreations--;
         if (0 == enginePriv->inProgressCreations) {
             while (enginePriv->erroredBindings) {
-                qWarning().nospace() << qPrintable(enginePriv->erroredBindings->error.toString());
+                enginePriv->warning(enginePriv->erroredBindings->error);
                 enginePriv->erroredBindings->removeError();
             }
         }
diff --git a/src/declarative/qml/qdeclarativecomponent.h b/src/declarative/qml/qdeclarativecomponent.h
index 6ee5070..f3cfe3c 100644
--- a/src/declarative/qml/qdeclarativecomponent.h
+++ b/src/declarative/qml/qdeclarativecomponent.h
@@ -99,8 +99,6 @@ public:
     virtual QObject *beginCreate(QDeclarativeContext *);
     virtual void completeCreate();
 
-    Q_INVOKABLE QScriptValue createObject();
-
     void loadUrl(const QUrl &url);
     void setData(const QByteArray &, const QUrl &baseUrl);
 
@@ -114,10 +112,12 @@ Q_SIGNALS:
 
 protected:
     QDeclarativeComponent(QDeclarativeComponentPrivate &dd, QObject* parent);
+    Q_INVOKABLE QScriptValue createObject();
 
 private:
     QDeclarativeComponent(QDeclarativeEngine *, QDeclarativeCompiledData *, int, int, QObject *parent);
 
+    Q_DISABLE_COPY(QDeclarativeComponent)
     friend class QDeclarativeVME;
     friend class QDeclarativeCompositeTypeData;
 };
diff --git a/src/declarative/qml/qdeclarativecompositetypemanager.cpp b/src/declarative/qml/qdeclarativecompositetypemanager.cpp
index 133b71f..adeb7a5 100644
--- a/src/declarative/qml/qdeclarativecompositetypemanager.cpp
+++ b/src/declarative/qml/qdeclarativecompositetypemanager.cpp
@@ -341,7 +341,6 @@ static QString toLocalFileOrQrc(const QUrl& url)
     if (url.scheme() == QLatin1String("qrc")) {
         if (url.authority().isEmpty())
             return QLatin1Char(':') + url.path();
-        qWarning() << "Invalid url:" << url.toString() << "authority" << url.authority() << "not known.";
         return QString();
     }
     return url.toLocalFile();
diff --git a/src/declarative/qml/qdeclarativecontext.cpp b/src/declarative/qml/qdeclarativecontext.cpp
index 6657fea..ae4223e 100644
--- a/src/declarative/qml/qdeclarativecontext.cpp
+++ b/src/declarative/qml/qdeclarativecontext.cpp
@@ -114,7 +114,7 @@ QDeclarativeContextPrivate::QDeclarativeContextPrivate()
     \endcode
 
     All properties added explicitly by QDeclarativeContext::setContextProperty() take 
-    precedence over context object's properties.
+    precedence over the context object's properties.
 
     Contexts form a hierarchy.  The root of this heirarchy is the QDeclarativeEngine's
     \l {QDeclarativeEngine::rootContext()}{root context}.  A component instance can 
@@ -140,6 +140,11 @@ QDeclarativeContextPrivate::QDeclarativeContextPrivate()
     While QML objects instantiated in a context are not strictly owned by that 
     context, their bindings are.  If a context is destroyed, the property bindings of 
     outstanding QML objects will stop evaluating.
+
+    \note Setting the context object or adding new context properties after an object
+    has been created in that context is an expensive operation (essentially forcing all bindings
+    to reevaluate). Thus whenever possible you should complete "setup" of the context
+    before using it to create any objects.
 */
 
 /*! \internal */
@@ -203,6 +208,12 @@ QDeclarativeContext::~QDeclarativeContext()
         d->data->destroy();
 }
 
+/*!
+    Returns whether the context is valid.
+
+    To be valid, a context must have a engine, and it's contextObject(), if any, 
+    must not have been deleted.
+*/
 bool QDeclarativeContext::isValid() const
 {
     Q_D(const QDeclarativeContext);
@@ -655,7 +666,7 @@ void QDeclarativeContextData::addImportedScript(const QDeclarativeParser::Object
             if (scriptEngine->hasUncaughtException()) {
                 QDeclarativeError error;
                 QDeclarativeExpressionPrivate::exceptionToError(scriptEngine, error);
-                qWarning().nospace() << qPrintable(error.toString());
+                enginePriv->warning(error);
             }
 
             scriptEngine->popContext();
@@ -681,7 +692,7 @@ void QDeclarativeContextData::addImportedScript(const QDeclarativeParser::Object
         if (scriptEngine->hasUncaughtException()) {
             QDeclarativeError error;
             QDeclarativeExpressionPrivate::exceptionToError(scriptEngine, error);
-            qWarning().nospace() << qPrintable(error.toString());
+            enginePriv->warning(error);
         }
 
         scriptEngine->popContext();
@@ -691,39 +702,6 @@ void QDeclarativeContextData::addImportedScript(const QDeclarativeParser::Object
     }
 }
 
-void QDeclarativeContextData::addScript(const QDeclarativeParser::Object::ScriptBlock &script, 
-                                        QObject *scopeObject)
-{
-    if (!engine) 
-        return;
-
-    QDeclarativeEnginePrivate *enginePriv = QDeclarativeEnginePrivate::get(engine);
-    QScriptEngine *scriptEngine = QDeclarativeEnginePrivate::getScriptEngine(engine);
-
-    QScriptContext *scriptContext = QScriptDeclarativeClass::pushCleanContext(scriptEngine);
-
-    scriptContext->pushScope(enginePriv->contextClass->newContext(this, scopeObject));
-    scriptContext->pushScope(enginePriv->globalClass->globalObject());
-    
-    QScriptValue scope = scriptEngine->newObject();
-    scriptContext->setActivationObject(scope);
-    scriptContext->pushScope(scope);
-
-    for (int ii = 0; ii < script.codes.count(); ++ii) {
-        scriptEngine->evaluate(script.codes.at(ii), script.files.at(ii), script.lineNumbers.at(ii));
-
-        if (scriptEngine->hasUncaughtException()) {
-            QDeclarativeError error;
-            QDeclarativeExpressionPrivate::exceptionToError(scriptEngine, error);
-            qWarning().nospace() << qPrintable(error.toString());
-        }
-    }
-
-    scriptEngine->popContext();
-
-    scripts.append(scope);
-}
-
 void QDeclarativeContextData::setIdProperty(int idx, QObject *obj)
 {
     idValues[idx] = obj;
diff --git a/src/declarative/qml/qdeclarativecontext.h b/src/declarative/qml/qdeclarativecontext.h
index 94c9f4a..548869c 100644
--- a/src/declarative/qml/qdeclarativecontext.h
+++ b/src/declarative/qml/qdeclarativecontext.h
@@ -103,6 +103,7 @@ private:
     friend class QDeclarativeContextData;
     QDeclarativeContext(QDeclarativeContextData *);
     QDeclarativeContext(QDeclarativeEngine *, bool);
+    Q_DISABLE_COPY(QDeclarativeContext)
 };
 QT_END_NAMESPACE
 
diff --git a/src/declarative/qml/qdeclarativecontext_p.h b/src/declarative/qml/qdeclarativecontext_p.h
index 77a6d94..c7fb099 100644
--- a/src/declarative/qml/qdeclarativecontext_p.h
+++ b/src/declarative/qml/qdeclarativecontext_p.h
@@ -145,10 +145,8 @@ public:
     QObject *contextObject;
 
     // Any script blocks that exist on this context
-    QList<QScriptValue> scripts;
     QList<QScriptValue> importedScripts;
     void addImportedScript(const QDeclarativeParser::Object::ScriptBlock &script);
-    void addScript(const QDeclarativeParser::Object::ScriptBlock &script, QObject *scopeObject);
 
     // Context base url
     QUrl url;
diff --git a/src/declarative/qml/qdeclarativecontextscriptclass.cpp b/src/declarative/qml/qdeclarativecontextscriptclass.cpp
index 461fab5..1336a1a 100644
--- a/src/declarative/qml/qdeclarativecontextscriptclass.cpp
+++ b/src/declarative/qml/qdeclarativecontextscriptclass.cpp
@@ -189,14 +189,6 @@ QDeclarativeContextScriptClass::queryProperty(QDeclarativeContextData *bindConte
         }
     }
 
-    for (int ii = 0; ii < bindContext->scripts.count(); ++ii) {
-        lastFunction = QScriptDeclarativeClass::function(bindContext->scripts.at(ii), name);
-        if (lastFunction.isValid()) {
-            lastContext = bindContext;
-            return QScriptClass::HandlesReadAccess;
-        }
-    }
-
     if (scopeObject) {
         QScriptClass::QueryFlags rv = 
             ep->objectClass->queryProperty(scopeObject, name, flags, bindContext, 
diff --git a/src/declarative/qml/qdeclarativecustomparser.cpp b/src/declarative/qml/qdeclarativecustomparser.cpp
index 1a97315..472a883 100644
--- a/src/declarative/qml/qdeclarativecustomparser.cpp
+++ b/src/declarative/qml/qdeclarativecustomparser.cpp
@@ -89,6 +89,8 @@ using namespace QDeclarativeParser;
     by \a data, which is a block of data previously returned by a call
     to compile().
 
+    Errors should be reported using qmlInfo(object).
+
     The \a object will be an instance of the TypeClass specified by QML_REGISTER_CUSTOM_TYPE.
 */
 
@@ -235,6 +237,24 @@ void QDeclarativeCustomParser::clearErrors()
 }
 
 /*!
+    Reports an error with the given \a description.
+
+    This can only be used during the compile() step. For errors during setCustomData(), use qmlInfo().
+
+    An error is generated referring to the position of the element in the source file.
+*/
+void QDeclarativeCustomParser::error(const QString& description)
+{
+    Q_ASSERT(object);
+    QDeclarativeError error;
+    QString exceptionDescription;
+    error.setLine(object->location.start.line);
+    error.setColumn(object->location.start.column);
+    error.setDescription(description);
+    exceptions << error;
+}
+
+/*!
     Reports an error in parsing \a prop, with the given \a description.
 
     An error is generated referring to the position of \a node in the source file.
diff --git a/src/declarative/qml/qdeclarativecustomparser_p.h b/src/declarative/qml/qdeclarativecustomparser_p.h
index da0358a..0e397c5 100644
--- a/src/declarative/qml/qdeclarativecustomparser_p.h
+++ b/src/declarative/qml/qdeclarativecustomparser_p.h
@@ -113,7 +113,7 @@ private:
 class Q_DECLARATIVE_EXPORT QDeclarativeCustomParser
 {
 public:
-    QDeclarativeCustomParser() : compiler(0) {}
+    QDeclarativeCustomParser() : compiler(0), object(0) {}
     virtual ~QDeclarativeCustomParser() {}
 
     void clearErrors();
@@ -124,6 +124,7 @@ public:
     QList<QDeclarativeError> errors() const { return exceptions; }
 
 protected:
+    void error(const QString& description);
     void error(const QDeclarativeCustomParserProperty&, const QString& description);
     void error(const QDeclarativeCustomParserNode&, const QString& description);
 
@@ -132,6 +133,7 @@ protected:
 private:
     QList<QDeclarativeError> exceptions;
     QDeclarativeCompiler *compiler;
+    QDeclarativeParser::Object *object;
     friend class QDeclarativeCompiler;
 };
 
diff --git a/src/declarative/qml/qdeclarativedata_p.h b/src/declarative/qml/qdeclarativedata_p.h
index 2ddd7e5..4a56536 100644
--- a/src/declarative/qml/qdeclarativedata_p.h
+++ b/src/declarative/qml/qdeclarativedata_p.h
@@ -75,7 +75,7 @@ public:
         : ownMemory(true), ownContext(false), indestructible(true), explicitIndestructibleSet(false), 
           context(0), outerContext(0), bindings(0), nextContextObject(0), prevContextObject(0), bindingBitsSize(0), 
           bindingBits(0), lineNumber(0), columnNumber(0), deferredComponent(0), deferredIdx(0), 
-          attachedProperties(0), scriptValue(0), propertyCache(0), guards(0) { 
+          attachedProperties(0), scriptValue(0), objectDataRefCount(0), propertyCache(0), guards(0) { 
           init(); 
       }
 
@@ -128,6 +128,7 @@ public:
     // ### Can we make this QScriptValuePrivate so we incur no additional allocation
     // cost?
     QScriptValue *scriptValue;
+    quint32 objectDataRefCount;
     QDeclarativePropertyCache *propertyCache;
 
     QDeclarativeGuard<QObject> *guards;
diff --git a/src/declarative/qml/qdeclarativedirparser.cpp b/src/declarative/qml/qdeclarativedirparser.cpp
index 1e3b37b..3e05853 100644
--- a/src/declarative/qml/qdeclarativedirparser.cpp
+++ b/src/declarative/qml/qdeclarativedirparser.cpp
@@ -170,10 +170,9 @@ bool QDeclarativeDirParser::parse()
             const int dotIndex = version.indexOf(QLatin1Char('.'));
 
             if (dotIndex == -1) {
-                qWarning() << "expected '.'"; // ### use reportError
+                reportError(lineNumber, -1, QLatin1String("expected '.'"));
             } else if (version.indexOf(QLatin1Char('.'), dotIndex + 1) != -1) {
-                qWarning() << "unexpected '.'"; // ### use reportError
-
+                reportError(lineNumber, -1, QLatin1String("unexpected '.'"));
             } else {
                 bool validVersionNumber = false;
                 const int majorVersion = version.left(dotIndex).toInt(&validVersionNumber);
@@ -189,8 +188,8 @@ bool QDeclarativeDirParser::parse()
                 }
             }
         } else {
-             // ### use reportError
-            qWarning() << "a component declaration requires 3 arguments, but" << (sectionCount + 1) << "were provided";
+            reportError(lineNumber, -1, 
+                        QString::fromUtf8("a component declaration requires 3 arguments, but %1 were provided").arg(sectionCount + 1));
         }
     }
 
diff --git a/src/declarative/qml/qdeclarativeengine.cpp b/src/declarative/qml/qdeclarativeengine.cpp
index 96145fb..8eae120 100644
--- a/src/declarative/qml/qdeclarativeengine.cpp
+++ b/src/declarative/qml/qdeclarativeengine.cpp
@@ -144,19 +144,19 @@ static bool qt_QmlQtModule_registered = false;
 
 void QDeclarativeEnginePrivate::defineModule()
 {
-    qmlRegisterType<QDeclarativeComponent>("Qt",4,6,"Component");
-    qmlRegisterType<QObject>("Qt",4,6,"QtObject");
-    qmlRegisterType<QDeclarativeWorkerScript>("Qt",4,6,"WorkerScript");
+    qmlRegisterType<QDeclarativeComponent>("Qt",4,7,"Component");
+    qmlRegisterType<QObject>("Qt",4,7,"QtObject");
+    qmlRegisterType<QDeclarativeWorkerScript>("Qt",4,7,"WorkerScript");
 
     qmlRegisterType<QDeclarativeBinding>();
 }
 
 QDeclarativeEnginePrivate::QDeclarativeEnginePrivate(QDeclarativeEngine *e)
-: captureProperties(false), rootContext(0), currentExpression(0), isDebugging(false), 
-  contextClass(0), sharedContext(0), sharedScope(0), objectClass(0), valueTypeClass(0), 
-  globalClass(0), cleanup(0), erroredBindings(0), inProgressCreations(0), 
-  scriptEngine(this), workerScriptEngine(0), componentAttached(0), inBeginCreate(false), 
-  networkAccessManager(0), networkAccessManagerFactory(0),
+: captureProperties(false), rootContext(0), currentExpression(0), isDebugging(false),
+  outputWarningsToStdErr(true), contextClass(0), sharedContext(0), sharedScope(0),
+  objectClass(0), valueTypeClass(0), globalClass(0), cleanup(0), erroredBindings(0),
+  inProgressCreations(0), scriptEngine(this), workerScriptEngine(0), componentAttached(0),
+  inBeginCreate(false), networkAccessManager(0), networkAccessManagerFactory(0),
   typeManager(e), uniqueId(1)
 {
     if (!qt_QmlQtModule_registered) {
@@ -216,8 +216,6 @@ QDeclarativeScriptEngine::QDeclarativeScriptEngine(QDeclarativeEnginePrivate *pr
     offlineStoragePath = QDesktopServices::storageLocation(QDesktopServices::DataLocation).replace(QLatin1Char('/'), QDir::separator())
         + QDir::separator() + QLatin1String("QML")
         + QDir::separator() + QLatin1String("OfflineStorage");
-#else
-    qWarning("offlineStoragePath is not set by default with QT_NO_DESKTOPSERVICES");
 #endif
 
     qt_add_qmlxmlhttprequest(this);
@@ -256,19 +254,19 @@ QDeclarativeScriptEngine::QDeclarativeScriptEngine(QDeclarativeEnginePrivate *pr
     qtObject.setProperty(QLatin1String("quit"), newFunction(QDeclarativeEnginePrivate::quit, 0));
     qtObject.setProperty(QLatin1String("resolvedUrl"),newFunction(QDeclarativeScriptEngine::resolvedUrl, 1));
 
+    if (mainthread) {
+        qtObject.setProperty(QLatin1String("createQmlObject"),
+                newFunction(QDeclarativeEnginePrivate::createQmlObject, 1));
+        qtObject.setProperty(QLatin1String("createComponent"),
+                newFunction(QDeclarativeEnginePrivate::createComponent, 1));
+    }
+
     //firebug/webkit compat
     QScriptValue consoleObject = newObject();
     consoleObject.setProperty(QLatin1String("log"),newFunction(QDeclarativeEnginePrivate::consoleLog, 1));
     consoleObject.setProperty(QLatin1String("debug"),newFunction(QDeclarativeEnginePrivate::consoleLog, 1));
     globalObject().setProperty(QLatin1String("console"), consoleObject);
 
-    if (mainthread) {
-        globalObject().setProperty(QLatin1String("createQmlObject"),
-                newFunction(QDeclarativeEnginePrivate::createQmlObject, 1));
-        globalObject().setProperty(QLatin1String("createComponent"),
-                newFunction(QDeclarativeEnginePrivate::createComponent, 1));
-    }
-
     // translation functions need to be installed
     // before the global script class is constructed (QTBUG-6437)
     installTranslatorFunctions();
@@ -355,7 +353,7 @@ void QDeclarativePrivate::qdeclarativeelement_destructor(QObject *o)
     QObjectPrivate *p = QObjectPrivate::get(o);
     Q_ASSERT(p->declarativeData);
     QDeclarativeData *d = static_cast<QDeclarativeData*>(p->declarativeData);
-    if (d->ownContext) 
+    if (d->ownContext)
         d->context->destroy();
 }
 
@@ -390,15 +388,13 @@ void QDeclarativeEnginePrivate::init()
         qmlEngineDebugServer();
         isDebugging = true;
         QDeclarativeEngineDebugServer::addEngine(q);
-
-        qmlEngineDebugServer()->waitForClients();
     }
 }
 
 QDeclarativeWorkerScriptEngine *QDeclarativeEnginePrivate::getWorkerScriptEngine()
 {
     Q_Q(QDeclarativeEngine);
-    if (!workerScriptEngine) 
+    if (!workerScriptEngine)
         workerScriptEngine = new QDeclarativeWorkerScriptEngine(q);
     return workerScriptEngine;
 }
@@ -423,7 +419,7 @@ QDeclarativeWorkerScriptEngine *QDeclarativeEnginePrivate::getWorkerScriptEngine
   QDeclarativeComponent component(&engine);
   component.setData("import Qt 4.7\nText { text: \"Hello world!\" }", QUrl());
   QDeclarativeItem *item = qobject_cast<QDeclarativeItem *>(component.create());
-  
+
   //add item to view, etc
   ...
   \endcode
@@ -655,6 +651,34 @@ void QDeclarativeEngine::setBaseUrl(const QUrl &url)
 }
 
 /*!
+  Returns true if warning messages will be output to stderr in addition
+  to being emitted by the warnings() signal, otherwise false.
+
+  The default value is true.
+*/
+bool QDeclarativeEngine::outputWarningsToStandardError() const
+{
+    Q_D(const QDeclarativeEngine);
+    return d->outputWarningsToStdErr;
+}
+
+/*!
+  Set whether warning messages will be output to stderr to \a enabled.
+
+  If \a enabled is true, any warning messages generated by QML will be
+  output to stderr and emitted by the warnings() signal.  If \a enabled
+  is false, on the warnings() signal will be emitted.  This allows
+  applications to handle warning output themselves.
+
+  The default value is true.
+*/
+void QDeclarativeEngine::setOutputWarningsToStandardError(bool enabled)
+{
+    Q_D(QDeclarativeEngine);
+    d->outputWarningsToStdErr = enabled;
+}
+
+/*!
   Returns the QDeclarativeContext for the \a object, or 0 if no
   context has been set.
 
@@ -743,6 +767,9 @@ void QDeclarativeEngine::setContextForObject(QObject *object, QDeclarativeContex
 */
 void QDeclarativeEngine::setObjectOwnership(QObject *object, ObjectOwnership ownership)
 {
+    if (!object)
+        return;
+
     QDeclarativeData *ddata = QDeclarativeData::get(object, true);
     if (!ddata)
         return;
@@ -756,8 +783,11 @@ void QDeclarativeEngine::setObjectOwnership(QObject *object, ObjectOwnership own
 */
 QDeclarativeEngine::ObjectOwnership QDeclarativeEngine::objectOwnership(QObject *object)
 {
+    if (!object)
+        return CppOwnership;
+
     QDeclarativeData *ddata = QDeclarativeData::get(object, false);
-    if (!ddata) 
+    if (!ddata)
         return CppOwnership;
     else
         return ddata->indestructible?CppOwnership:JavaScriptOwnership;
@@ -780,8 +810,7 @@ void qmlExecuteDeferred(QObject *object)
         QDeclarativeComponentPrivate::complete(ep, &state);
 
         if (!state.errors.isEmpty())
-            qWarning() << state.errors;
-
+            ep->warning(state.errors);
     }
 }
 
@@ -821,7 +850,7 @@ QObject *qmlAttachedPropertiesObjectById(int id, const QObject *object, bool cre
     return rv;
 }
 
-QObject *qmlAttachedPropertiesObject(int *idCache, const QObject *object, 
+QObject *qmlAttachedPropertiesObject(int *idCache, const QObject *object,
                                      const QMetaObject *attachedMetaObject, bool create)
 {
     if (*idCache == -1)
@@ -840,7 +869,7 @@ void QDeclarativeData::destroyed(QObject *object)
     if (attachedProperties)
         delete attachedProperties;
 
-    if (nextContextObject) 
+    if (nextContextObject)
         nextContextObject->prevContextObject = prevContextObject;
     if (prevContextObject)
         *prevContextObject = nextContextObject;
@@ -887,7 +916,7 @@ void QDeclarativeData::parentChanged(QObject *, QObject *parent)
 
 bool QDeclarativeData::hasBindingBit(int bit) const
 {
-    if (bindingBitsSize > bit) 
+    if (bindingBitsSize > bit)
         return bindingBits[bit / 32] & (1 << (bit % 32));
     else
         return false;
@@ -895,7 +924,7 @@ bool QDeclarativeData::hasBindingBit(int bit) const
 
 void QDeclarativeData::clearBindingBit(int bit)
 {
-    if (bindingBitsSize > bit) 
+    if (bindingBitsSize > bit)
         bindingBits[bit / 32] &= ~(1 << (bit % 32));
 }
 
@@ -908,10 +937,10 @@ void QDeclarativeData::setBindingBit(QObject *obj, int bit)
         int arraySize = (props + 31) / 32;
         int oldArraySize = bindingBitsSize / 32;
 
-        bindingBits = (quint32 *)realloc(bindingBits, 
+        bindingBits = (quint32 *)realloc(bindingBits,
                                          arraySize * sizeof(quint32));
 
-        memset(bindingBits + oldArraySize, 
+        memset(bindingBits + oldArraySize,
                0x00,
                sizeof(quint32) * (arraySize - oldArraySize));
 
@@ -957,7 +986,7 @@ QScriptValue QDeclarativeEnginePrivate::createComponent(QScriptContext *ctxt, QS
     Q_ASSERT(context);
 
     if(ctxt->argumentCount() != 1) {
-        return engine->nullValue();
+        return ctxt->throwError("Qt.createComponent(): Invalid arguments");
     }else{
         QString arg = ctxt->argument(0).toString();
         if (arg.isEmpty())
@@ -977,7 +1006,7 @@ QScriptValue QDeclarativeEnginePrivate::createQmlObject(QScriptContext *ctxt, QS
     QDeclarativeEngine* activeEngine = activeEnginePriv->q_func();
 
     if(ctxt->argumentCount() < 2 || ctxt->argumentCount() > 3)
-        return engine->nullValue();
+        return ctxt->throwError("Qt.createQmlObject(): Invalid arguments");
 
     QDeclarativeContextData* context = activeEnginePriv->getContext(ctxt);
     Q_ASSERT(context);
@@ -996,36 +1025,53 @@ QScriptValue QDeclarativeEnginePrivate::createQmlObject(QScriptContext *ctxt, QS
         url = context->resolvedUrl(url);
 
     QObject *parentArg = activeEnginePriv->objectClass->toQObject(ctxt->argument(1));
-    if(!parentArg) 
-        return engine->nullValue();
+    if(!parentArg)
+        return ctxt->throwError("Qt.createQmlObject(): Missing parent object");
 
     QDeclarativeComponent component(activeEngine);
     component.setData(qml.toUtf8(), url);
 
     if(component.isError()) {
         QList<QDeclarativeError> errors = component.errors();
-        qWarning().nospace() << "QDeclarativeEngine::createQmlObject():";
-        foreach (const QDeclarativeError &error, errors)
-            qWarning().nospace() << "    " << error;
-
-        return engine->nullValue();
+        QString errstr = QLatin1String("Qt.createQmlObject() failed to create object: ");
+        QScriptValue arr = ctxt->engine()->newArray(errors.length());
+        int i = 0;
+        foreach (const QDeclarativeError &error, errors){
+            errstr += QLatin1String("    ") + error.toString() + QLatin1String("\n");
+            QScriptValue qmlErrObject = ctxt->engine()->newObject();
+            qmlErrObject.setProperty("lineNumber", QScriptValue(error.line()));
+            qmlErrObject.setProperty("columnNumber", QScriptValue(error.column()));
+            qmlErrObject.setProperty("fileName", QScriptValue(error.url().toString()));
+            qmlErrObject.setProperty("message", QScriptValue(error.description()));
+            arr.setProperty(i++, qmlErrObject);
+        }
+        QScriptValue err = ctxt->throwError(errstr);
+        err.setProperty("qmlErrors",arr);
+        return err;
     }
 
-    if (!component.isReady()) {
-        qWarning().nospace() << "QDeclarativeEngine::createQmlObject(): Component is not ready";
-
-        return engine->nullValue();
-    }
+    if (!component.isReady())
+        return ctxt->throwError("Qt.createQmlObject(): Component is not ready");
 
     QObject *obj = component.create(context->asQDeclarativeContext());
 
     if(component.isError()) {
         QList<QDeclarativeError> errors = component.errors();
-        qWarning().nospace() << "QDeclarativeEngine::createQmlObject():";
-        foreach (const QDeclarativeError &error, errors)
-            qWarning().nospace() << "    " << error;
-
-        return engine->nullValue();
+        QString errstr = QLatin1String("Qt.createQmlObject() failed to create object: ");
+        QScriptValue arr = ctxt->engine()->newArray(errors.length());
+        int i = 0;
+        foreach (const QDeclarativeError &error, errors){
+            errstr += QLatin1String("    ") + error.toString() + QLatin1String("\n");
+            QScriptValue qmlErrObject = ctxt->engine()->newObject();
+            qmlErrObject.setProperty("lineNumber", QScriptValue(error.line()));
+            qmlErrObject.setProperty("columnNumber", QScriptValue(error.column()));
+            qmlErrObject.setProperty("fileName", QScriptValue(error.url().toString()));
+            qmlErrObject.setProperty("message", QScriptValue(error.description()));
+            arr.setProperty(i++, qmlErrObject);
+        }
+        QScriptValue err = ctxt->throwError(errstr);
+        err.setProperty("qmlErrors",arr);
+        return err;
     }
 
     Q_ASSERT(obj);
@@ -1051,7 +1097,7 @@ QScriptValue QDeclarativeEnginePrivate::isQtObject(QScriptContext *ctxt, QScript
 QScriptValue QDeclarativeEnginePrivate::vector(QScriptContext *ctxt, QScriptEngine *engine)
 {
     if(ctxt->argumentCount() != 3)
-        return engine->nullValue();
+        return ctxt->throwError("Qt.vector(): Invalid arguments");
     qsreal x = ctxt->argument(0).toNumber();
     qsreal y = ctxt->argument(1).toNumber();
     qsreal z = ctxt->argument(2).toNumber();
@@ -1062,7 +1108,7 @@ QScriptValue QDeclarativeEnginePrivate::formatDate(QScriptContext*ctxt, QScriptE
 {
     int argCount = ctxt->argumentCount();
     if(argCount == 0 || argCount > 2)
-        return engine->nullValue();
+        return ctxt->throwError("Qt.formatDate(): Invalid arguments");
 
     QDate date = ctxt->argument(0).toDateTime().date();
     Qt::DateFormat enumFormat = Qt::DefaultLocaleShortDate;
@@ -1072,8 +1118,9 @@ QScriptValue QDeclarativeEnginePrivate::formatDate(QScriptContext*ctxt, QScriptE
             return engine->newVariant(qVariantFromValue(date.toString(format)));
         } else if (ctxt->argument(1).isNumber()) {
             enumFormat = Qt::DateFormat(ctxt->argument(1).toUInt32());
-        } else
-           return engine->nullValue();
+        } else {
+            return ctxt->throwError("Qt.formatDate(): Invalid date format");
+        }
     }
     return engine->newVariant(qVariantFromValue(date.toString(enumFormat)));
 }
@@ -1082,7 +1129,7 @@ QScriptValue QDeclarativeEnginePrivate::formatTime(QScriptContext*ctxt, QScriptE
 {
     int argCount = ctxt->argumentCount();
     if(argCount == 0 || argCount > 2)
-        return engine->nullValue();
+        return ctxt->throwError("Qt.formatTime(): Invalid arguments");
 
     QTime date = ctxt->argument(0).toDateTime().time();
     Qt::DateFormat enumFormat = Qt::DefaultLocaleShortDate;
@@ -1092,8 +1139,9 @@ QScriptValue QDeclarativeEnginePrivate::formatTime(QScriptContext*ctxt, QScriptE
             return engine->newVariant(qVariantFromValue(date.toString(format)));
         } else if (ctxt->argument(1).isNumber()) {
             enumFormat = Qt::DateFormat(ctxt->argument(1).toUInt32());
-        } else
-           return engine->nullValue();
+        } else {
+            return ctxt->throwError("Qt.formatTime(): Invalid time format");
+        }
     }
     return engine->newVariant(qVariantFromValue(date.toString(enumFormat)));
 }
@@ -1102,7 +1150,7 @@ QScriptValue QDeclarativeEnginePrivate::formatDateTime(QScriptContext*ctxt, QScr
 {
     int argCount = ctxt->argumentCount();
     if(argCount == 0 || argCount > 2)
-        return engine->nullValue();
+        return ctxt->throwError("Qt.formatDateTime(): Invalid arguments");
 
     QDateTime date = ctxt->argument(0).toDateTime();
     Qt::DateFormat enumFormat = Qt::DefaultLocaleShortDate;
@@ -1112,8 +1160,9 @@ QScriptValue QDeclarativeEnginePrivate::formatDateTime(QScriptContext*ctxt, QScr
             return engine->newVariant(qVariantFromValue(date.toString(format)));
         } else if (ctxt->argument(1).isNumber()) {
             enumFormat = Qt::DateFormat(ctxt->argument(1).toUInt32());
-        } else
-           return engine->nullValue();
+        } else { 
+            return ctxt->throwError("Qt.formatDateTime(): Invalid datetime formate");
+        }
     }
     return engine->newVariant(qVariantFromValue(date.toString(enumFormat)));
 }
@@ -1122,14 +1171,20 @@ QScriptValue QDeclarativeEnginePrivate::rgba(QScriptContext *ctxt, QScriptEngine
 {
     int argCount = ctxt->argumentCount();
     if(argCount < 3 || argCount > 4)
-        return engine->nullValue();
+        return ctxt->throwError("Qt.rgba(): Invalid arguments");
     qsreal r = ctxt->argument(0).toNumber();
     qsreal g = ctxt->argument(1).toNumber();
     qsreal b = ctxt->argument(2).toNumber();
     qsreal a = (argCount == 4) ? ctxt->argument(3).toNumber() : 1;
 
-    if (r < 0 || r > 1 || g < 0 || g > 1 || b < 0 || b > 1 || a < 0 || a > 1)
-        return engine->nullValue();
+    if (r < 0.0) r=0.0;
+    if (r > 1.0) r=1.0;
+    if (g < 0.0) g=0.0;
+    if (g > 1.0) g=1.0;
+    if (b < 0.0) b=0.0;
+    if (b > 1.0) b=1.0;
+    if (a < 0.0) a=0.0;
+    if (a > 1.0) a=1.0;
 
     return qScriptValueFromValue(engine, qVariantFromValue(QColor::fromRgbF(r, g, b, a)));
 }
@@ -1138,14 +1193,20 @@ QScriptValue QDeclarativeEnginePrivate::hsla(QScriptContext *ctxt, QScriptEngine
 {
     int argCount = ctxt->argumentCount();
     if(argCount < 3 || argCount > 4)
-        return engine->nullValue();
+        return ctxt->throwError("Qt.hsla(): Invalid arguments");
     qsreal h = ctxt->argument(0).toNumber();
     qsreal s = ctxt->argument(1).toNumber();
     qsreal l = ctxt->argument(2).toNumber();
     qsreal a = (argCount == 4) ? ctxt->argument(3).toNumber() : 1;
 
-    if (h < 0 || h > 1 || s < 0 || s > 1 || l < 0 || l > 1 || a < 0 || a > 1)
-        return engine->nullValue();
+    if (h < 0.0) h=0.0;
+    if (h > 1.0) h=1.0;
+    if (s < 0.0) s=0.0;
+    if (s > 1.0) s=1.0;
+    if (l < 0.0) l=0.0;
+    if (l > 1.0) l=1.0;
+    if (a < 0.0) a=0.0;
+    if (a > 1.0) a=1.0;
 
     return qScriptValueFromValue(engine, qVariantFromValue(QColor::fromHslF(h, s, l, a)));
 }
@@ -1153,7 +1214,7 @@ QScriptValue QDeclarativeEnginePrivate::hsla(QScriptContext *ctxt, QScriptEngine
 QScriptValue QDeclarativeEnginePrivate::rect(QScriptContext *ctxt, QScriptEngine *engine)
 {
     if(ctxt->argumentCount() != 4)
-        return engine->nullValue();
+        return ctxt->throwError("Qt.rect(): Invalid arguments");
 
     qsreal x = ctxt->argument(0).toNumber();
     qsreal y = ctxt->argument(1).toNumber();
@@ -1169,7 +1230,7 @@ QScriptValue QDeclarativeEnginePrivate::rect(QScriptContext *ctxt, QScriptEngine
 QScriptValue QDeclarativeEnginePrivate::point(QScriptContext *ctxt, QScriptEngine *engine)
 {
     if(ctxt->argumentCount() != 2)
-        return engine->nullValue();
+        return ctxt->throwError("Qt.point(): Invalid arguments");
     qsreal x = ctxt->argument(0).toNumber();
     qsreal y = ctxt->argument(1).toNumber();
     return qScriptValueFromValue(engine, qVariantFromValue(QPointF(x, y)));
@@ -1178,7 +1239,7 @@ QScriptValue QDeclarativeEnginePrivate::point(QScriptContext *ctxt, QScriptEngin
 QScriptValue QDeclarativeEnginePrivate::size(QScriptContext *ctxt, QScriptEngine *engine)
 {
     if(ctxt->argumentCount() != 2)
-        return engine->nullValue();
+        return ctxt->throwError("Qt.size(): Invalid arguments");
     qsreal w = ctxt->argument(0).toNumber();
     qsreal h = ctxt->argument(1).toNumber();
     return qScriptValueFromValue(engine, qVariantFromValue(QSizeF(w, h)));
@@ -1187,7 +1248,7 @@ QScriptValue QDeclarativeEnginePrivate::size(QScriptContext *ctxt, QScriptEngine
 QScriptValue QDeclarativeEnginePrivate::lighter(QScriptContext *ctxt, QScriptEngine *engine)
 {
     if(ctxt->argumentCount() != 1)
-        return engine->nullValue();
+        return ctxt->throwError("Qt.lighter(): Invalid arguments");
     QVariant v = ctxt->argument(0).toVariant();
     QColor color;
     if (v.userType() == QVariant::Color)
@@ -1206,7 +1267,7 @@ QScriptValue QDeclarativeEnginePrivate::lighter(QScriptContext *ctxt, QScriptEng
 QScriptValue QDeclarativeEnginePrivate::darker(QScriptContext *ctxt, QScriptEngine *engine)
 {
     if(ctxt->argumentCount() != 1)
-        return engine->nullValue();
+        return ctxt->throwError("Qt.darker(): Invalid arguments");
     QVariant v = ctxt->argument(0).toVariant();
     QColor color;
     if (v.userType() == QVariant::Color)
@@ -1225,21 +1286,20 @@ QScriptValue QDeclarativeEnginePrivate::darker(QScriptContext *ctxt, QScriptEngi
 QScriptValue QDeclarativeEnginePrivate::desktopOpenUrl(QScriptContext *ctxt, QScriptEngine *e)
 {
     if(ctxt->argumentCount() < 1)
-        return e->newVariant(QVariant(false));
+        return QScriptValue(e, false);
     bool ret = false;
 #ifndef QT_NO_DESKTOPSERVICES
     ret = QDesktopServices::openUrl(QUrl(ctxt->argument(0).toString()));
 #endif
-    return e->newVariant(QVariant(ret));
+    return QScriptValue(e, ret);
 }
 
 QScriptValue QDeclarativeEnginePrivate::md5(QScriptContext *ctxt, QScriptEngine *)
 {
-    QByteArray data;
-
-    if (ctxt->argumentCount() >= 1)
-        data = ctxt->argument(0).toString().toUtf8();
+    if (ctxt->argumentCount() != 1)
+        return ctxt->throwError("Qt.md5(): Invalid arguments");
 
+    QByteArray data = ctxt->argument(0).toString().toUtf8();
     QByteArray result = QCryptographicHash::hash(data, QCryptographicHash::Md5);
 
     return QScriptValue(QLatin1String(result.toHex()));
@@ -1247,20 +1307,20 @@ QScriptValue QDeclarativeEnginePrivate::md5(QScriptContext *ctxt, QScriptEngine
 
 QScriptValue QDeclarativeEnginePrivate::btoa(QScriptContext *ctxt, QScriptEngine *)
 {
-    QByteArray data;
+    if (ctxt->argumentCount() != 1) 
+        return ctxt->throwError("Qt.btoa(): Invalid arguments");
 
-    if (ctxt->argumentCount() >= 1)
-        data = ctxt->argument(0).toString().toUtf8();
+    QByteArray data = ctxt->argument(0).toString().toUtf8();
 
     return QScriptValue(QLatin1String(data.toBase64()));
 }
 
 QScriptValue QDeclarativeEnginePrivate::atob(QScriptContext *ctxt, QScriptEngine *)
 {
-    QByteArray data;
+    if (ctxt->argumentCount() != 1) 
+        return ctxt->throwError("Qt.atob(): Invalid arguments");
 
-    if (ctxt->argumentCount() >= 1)
-        data = ctxt->argument(0).toString().toUtf8();
+    QByteArray data = ctxt->argument(0).toString().toUtf8();
 
     return QScriptValue(QLatin1String(QByteArray::fromBase64(data)));
 }
@@ -1284,23 +1344,82 @@ QScriptValue QDeclarativeEnginePrivate::consoleLog(QScriptContext *ctxt, QScript
     return e->newVariant(QVariant(true));
 }
 
-void QDeclarativeEnginePrivate::sendQuit ()
+void QDeclarativeEnginePrivate::sendQuit()
 {
     Q_Q(QDeclarativeEngine);
     emit q->quit();
 }
 
+static void dumpwarning(const QDeclarativeError &error)
+{
+    qWarning().nospace() << qPrintable(error.toString());
+}
+
+static void dumpwarning(const QList<QDeclarativeError> &errors)
+{
+    for (int ii = 0; ii < errors.count(); ++ii)
+        dumpwarning(errors.at(ii));
+}
+
+void QDeclarativeEnginePrivate::warning(const QDeclarativeError &error)
+{
+    Q_Q(QDeclarativeEngine);
+    q->warnings(QList<QDeclarativeError>() << error);
+    if (outputWarningsToStdErr)
+        dumpwarning(error);
+}
+
+void QDeclarativeEnginePrivate::warning(const QList<QDeclarativeError> &errors)
+{
+    Q_Q(QDeclarativeEngine);
+    q->warnings(errors);
+    if (outputWarningsToStdErr)
+        dumpwarning(errors);
+}
+
+void QDeclarativeEnginePrivate::warning(QDeclarativeEngine *engine, const QDeclarativeError &error)
+{
+    if (engine)
+        QDeclarativeEnginePrivate::get(engine)->warning(error);
+    else
+        dumpwarning(error);
+}
+
+void QDeclarativeEnginePrivate::warning(QDeclarativeEngine *engine, const QList<QDeclarativeError> &error)
+{
+    if (engine)
+        QDeclarativeEnginePrivate::get(engine)->warning(error);
+    else
+        dumpwarning(error);
+}
+
+void QDeclarativeEnginePrivate::warning(QDeclarativeEnginePrivate *engine, const QDeclarativeError &error)
+{
+    if (engine)
+        engine->warning(error);
+    else
+        dumpwarning(error);
+}
+
+void QDeclarativeEnginePrivate::warning(QDeclarativeEnginePrivate *engine, const QList<QDeclarativeError> &error)
+{
+    if (engine)
+        engine->warning(error);
+    else
+        dumpwarning(error);
+}
+
 QScriptValue QDeclarativeEnginePrivate::quit(QScriptContext * /*ctxt*/, QScriptEngine *e)
 {
     QDeclarativeEnginePrivate *qe = get (e);
-    qe->sendQuit ();
+    qe->sendQuit();
     return QScriptValue();
 }
 
 QScriptValue QDeclarativeEnginePrivate::tint(QScriptContext *ctxt, QScriptEngine *engine)
 {
     if(ctxt->argumentCount() != 2)
-        return engine->nullValue();
+        return ctxt->throwError("Qt.tint(): Invalid arguments");
     //get color
     QVariant v = ctxt->argument(0).toVariant();
     QColor color;
@@ -1350,7 +1469,7 @@ QScriptValue QDeclarativeEnginePrivate::tint(QScriptContext *ctxt, QScriptEngine
 QScriptValue QDeclarativeEnginePrivate::scriptValueFromVariant(const QVariant &val)
 {
     if (val.userType() == qMetaTypeId<QDeclarativeListReference>()) {
-        QDeclarativeListReferencePrivate *p = 
+        QDeclarativeListReferencePrivate *p =
             QDeclarativeListReferencePrivate::get((QDeclarativeListReference*)val.constData());
         if (p->object) {
             return listClass->newList(p->property, p->propertyType);
@@ -1383,7 +1502,7 @@ QVariant QDeclarativeEnginePrivate::scriptValueToVariant(const QScriptValue &val
     QScriptDeclarativeClass *dc = QScriptDeclarativeClass::scriptClass(val);
     if (dc == objectClass)
         return QVariant::fromValue(objectClass->toQObject(val));
-    else if (dc == valueTypeClass) 
+    else if (dc == valueTypeClass)
         return valueTypeClass->toVariant(val);
     else if (dc == contextClass)
         return QVariant();
@@ -1410,7 +1529,6 @@ static QString toLocalFileOrQrc(const QUrl& url)
     if (url.scheme() == QLatin1String("qrc")) {
         if (url.authority().isEmpty())
             return QLatin1Char(':') + url.path();
-        qWarning() << "Invalid url:" << url.toString() << "authority" << url.authority() << "not known.";
         return QString();
     }
     return url.toLocalFile();
@@ -1595,7 +1713,7 @@ public:
         if (importType == QDeclarativeScriptParser::Import::Library) {
             url.replace(QLatin1Char('.'), QLatin1Char('/'));
             bool found = false;
-            QString dir;            
+            QString dir;
 
 
             foreach (const QString &p,
@@ -1620,7 +1738,7 @@ public:
                 found = QDeclarativeMetaType::isModule(uri.toUtf8(), vmaj, vmin);
                 if (!found) {
                     if (errorString) {
-                        bool anyversion = QDeclarativeMetaType::isModule(uri.toUtf8(), 0, 0);
+                        bool anyversion = QDeclarativeMetaType::isModule(uri.toUtf8(), -1, -1);
                         if (anyversion)
                             *errorString = QDeclarativeEngine::tr("module \"%1\" version %2.%3 is not installed").arg(uri_arg).arg(vmaj).arg(vmin);
                         else
@@ -1773,8 +1891,8 @@ static QDeclarativeTypeNameCache *cacheForNamespace(QDeclarativeEngine *engine,
         int minor = set.minversions.at(ii);
 
         foreach (QDeclarativeType *type, types) {
-            if (type->qmlTypeName().startsWith(base) && 
-                type->qmlTypeName().lastIndexOf('/') == (base.length() - 1) && 
+            if (type->qmlTypeName().startsWith(base) &&
+                type->qmlTypeName().lastIndexOf('/') == (base.length() - 1) &&
                 type->availableInVersion(major,minor))
             {
                 QString name = QString::fromUtf8(type->qmlTypeName().mid(base.length()));
@@ -1943,7 +2061,8 @@ QStringList QDeclarativeEngine::pluginPathList() const
 
 /*!
   Sets the list of directories where the engine searches for
-  native plugins for imported modules (referenced in the \c qmldir file).
+  native plugins for imported modules (referenced in the \c qmldir file)
+  to \a paths.
 
   By default, the list contains only \c .,  i.e. the engine searches
   in the directory of the \c qmldir file itself.
@@ -1961,6 +2080,8 @@ void QDeclarativeEngine::setPluginPathList(const QStringList &paths)
   Imports the plugin named \a filePath with the \a uri provided.
   Returns true if the plugin was successfully imported; otherwise returns false.
 
+  On failure and if non-null, *\a errorString will be set to a message describing the failure.
+
   The plugin has to be a Qt plugin which implements the QDeclarativeExtensionPlugin interface.
 */
 bool QDeclarativeEngine::importPlugin(const QString &filePath, const QString &uri, QString *errorString)
diff --git a/src/declarative/qml/qdeclarativeengine.h b/src/declarative/qml/qdeclarativeengine.h
index 7b058ea..01487f5 100644
--- a/src/declarative/qml/qdeclarativeengine.h
+++ b/src/declarative/qml/qdeclarativeengine.h
@@ -46,6 +46,7 @@
 #include <QtCore/qobject.h>
 #include <QtCore/qmap.h>
 #include <QtScript/qscriptvalue.h>
+#include <QtDeclarative/qdeclarativeerror.h>
 
 QT_BEGIN_HEADER
 
@@ -102,6 +103,9 @@ public:
     QUrl baseUrl() const;
     void setBaseUrl(const QUrl &);
 
+    bool outputWarningsToStandardError() const;
+    void setOutputWarningsToStandardError(bool);
+
     static QDeclarativeContext *contextForObject(const QObject *);
     static void setContextForObject(QObject *, QDeclarativeContext *);
 
@@ -110,9 +114,11 @@ public:
     static ObjectOwnership objectOwnership(QObject *);
 
 Q_SIGNALS:
-    void quit ();
+    void quit();
+    void warnings(const QList<QDeclarativeError> &warnings);
 
 private:
+    Q_DISABLE_COPY(QDeclarativeEngine)
     Q_DECLARE_PRIVATE(QDeclarativeEngine)
 };
 
diff --git a/src/declarative/qml/qdeclarativeengine_p.h b/src/declarative/qml/qdeclarativeengine_p.h
index b3bba43..f6b9bcb 100644
--- a/src/declarative/qml/qdeclarativeengine_p.h
+++ b/src/declarative/qml/qdeclarativeengine_p.h
@@ -162,6 +162,8 @@ public:
     QDeclarativeExpression *currentExpression;
     bool isDebugging;
 
+    bool outputWarningsToStdErr;
+
     struct ImportedNamespace;
     QDeclarativeContextScriptClass *contextClass;
     QDeclarativeContextData *sharedContext;
@@ -311,7 +313,13 @@ public:
     QScriptValue scriptValueFromVariant(const QVariant &);
     QVariant scriptValueToVariant(const QScriptValue &, int hint = QVariant::Invalid);
 
-    void sendQuit ();
+    void sendQuit();
+    void warning(const QDeclarativeError &);
+    void warning(const QList<QDeclarativeError> &);
+    static void warning(QDeclarativeEngine *, const QDeclarativeError &);
+    static void warning(QDeclarativeEngine *, const QList<QDeclarativeError> &);
+    static void warning(QDeclarativeEnginePrivate *, const QDeclarativeError &);
+    static void warning(QDeclarativeEnginePrivate *, const QList<QDeclarativeError> &);
 
     static QScriptValue qmlScriptObject(QObject*, QDeclarativeEngine*);
 
diff --git a/src/declarative/qml/qdeclarativeenginedebug.cpp b/src/declarative/qml/qdeclarativeenginedebug.cpp
index 578733c..69e42f8 100644
--- a/src/declarative/qml/qdeclarativeenginedebug.cpp
+++ b/src/declarative/qml/qdeclarativeenginedebug.cpp
@@ -308,8 +308,6 @@ void QDeclarativeEngineDebugServer::messageReceived(const QByteArray &message)
     QByteArray type;
     ds >> type;
 
-    //qDebug() << "QDeclarativeEngineDebugServer::messageReceived()" << type;
-
     if (type == "LIST_ENGINES") {
         int queryId;
         ds >> queryId;
@@ -418,7 +416,7 @@ void QDeclarativeEngineDebugServer::messageReceived(const QByteArray &message)
         if (object && context) {
             QDeclarativeExpression exprObj(context, expr, object);
             bool undefined = false;
-            QVariant value = exprObj.value(&undefined);
+            QVariant value = exprObj.evaluate(&undefined);
             if (undefined)
                 result = QLatin1String("<undefined>");
             else
diff --git a/src/declarative/qml/qdeclarativeerror.cpp b/src/declarative/qml/qdeclarativeerror.cpp
index 7e8aac0..8717f56 100644
--- a/src/declarative/qml/qdeclarativeerror.cpp
+++ b/src/declarative/qml/qdeclarativeerror.cpp
@@ -49,8 +49,27 @@ QT_BEGIN_NAMESPACE
 
 /*!
     \class QDeclarativeError
-  \since 4.7
-    \brief The QDeclarativeError class encapsulates a QML error
+    \since 4.7
+    \brief The QDeclarativeError class encapsulates a QML error.
+
+    QDeclarativeError includes a textual description of the error, as well
+    as location information (the file, line, and column). The toString()
+    method creates a single-line, human-readable string containing all of
+    this information, for example:
+    \code
+    file:///home/user/test.qml:7:8: Invalid property assignment: double expected
+    \endcode
+
+    You can use qDebug() or qWarning() to output errors to the console. This method
+    will attempt to open the file indicated by the error
+    and include additional contextual information.
+    \code
+    file:///home/user/test.qml:7:8: Invalid property assignment: double expected
+            y: "hello"
+               ^
+    \endcode
+
+    \sa QDeclarativeView::errors(), QDeclarativeComponent::errors()
 */
 class QDeclarativeErrorPrivate
 {
@@ -69,7 +88,7 @@ QDeclarativeErrorPrivate::QDeclarativeErrorPrivate()
 }
 
 /*!
-    Create an empty error object.
+    Creates an empty error object.
 */
 QDeclarativeError::QDeclarativeError()
 : d(0)
@@ -77,7 +96,7 @@ QDeclarativeError::QDeclarativeError()
 }
 
 /*!
-    Create a copy of \a other.
+    Creates a copy of \a other.
 */
 QDeclarativeError::QDeclarativeError(const QDeclarativeError &other)
 : d(0)
@@ -86,7 +105,7 @@ QDeclarativeError::QDeclarativeError(const QDeclarativeError &other)
 }
 
 /*!
-    Assign \a other to this error object.
+    Assigns \a other to this error object.
 */
 QDeclarativeError &QDeclarativeError::operator=(const QDeclarativeError &other)
 {
@@ -112,7 +131,7 @@ QDeclarativeError::~QDeclarativeError()
 }
 
 /*!
-    Return true if this error is valid, otherwise false.
+    Returns true if this error is valid, otherwise false.
 */
 bool QDeclarativeError::isValid() const
 {
@@ -120,7 +139,7 @@ bool QDeclarativeError::isValid() const
 }
 
 /*!
-    Return the url for the file that caused this error.
+    Returns the url for the file that caused this error.
 */
 QUrl QDeclarativeError::url() const
 {
@@ -129,7 +148,7 @@ QUrl QDeclarativeError::url() const
 }
 
 /*!
-    Set the \a url for the file that caused this error.
+    Sets the \a url for the file that caused this error.
 */
 void QDeclarativeError::setUrl(const QUrl &url)
 {
@@ -138,7 +157,7 @@ void QDeclarativeError::setUrl(const QUrl &url)
 }
 
 /*!
-    Return the error description.
+    Returns the error description.
 */
 QString QDeclarativeError::description() const
 {
@@ -147,7 +166,7 @@ QString QDeclarativeError::description() const
 }
 
 /*!
-    Set the error \a description.
+    Sets the error \a description.
 */
 void QDeclarativeError::setDescription(const QString &description)
 {
@@ -156,7 +175,7 @@ void QDeclarativeError::setDescription(const QString &description)
 }
 
 /*!
-    Return the error line number.
+    Returns the error line number.
 */
 int QDeclarativeError::line() const
 {
@@ -165,7 +184,7 @@ int QDeclarativeError::line() const
 }
 
 /*!
-    Set the error \a line number.
+    Sets the error \a line number.
 */
 void QDeclarativeError::setLine(int line)
 {
@@ -174,7 +193,7 @@ void QDeclarativeError::setLine(int line)
 }
 
 /*!
-    Return the error column number.
+    Returns the error column number.
 */
 int QDeclarativeError::column() const
 {
@@ -183,7 +202,7 @@ int QDeclarativeError::column() const
 }
 
 /*!
-    Set the error \a column number.
+    Sets the error \a column number.
 */
 void QDeclarativeError::setColumn(int column)
 {
@@ -192,14 +211,20 @@ void QDeclarativeError::setColumn(int column)
 }
 
 /*!
-    Return the error as a human readable string.
+    Returns the error as a human readable string.
 */
 QString QDeclarativeError::toString() const
 {
     QString rv;
-    rv = url().toString() + QLatin1Char(':') + QString::number(line());
-    if(column() != -1) 
-        rv += QLatin1Char(':') + QString::number(column());
+    if (url().isEmpty()) {
+        rv = QLatin1String("<Unknown File>");
+    } else if (line() != -1) {
+        rv = url().toString() + QLatin1Char(':') + QString::number(line());
+        if(column() != -1) 
+            rv += QLatin1Char(':') + QString::number(column());
+    } else {
+        rv = url().toString();
+    }
 
     rv += QLatin1String(": ") + description();
 
@@ -210,7 +235,7 @@ QString QDeclarativeError::toString() const
     \relates QDeclarativeError
     \fn QDebug operator<<(QDebug debug, const QDeclarativeError &error)
 
-    Output a human readable version of \a error to \a debug.
+    Outputs a human readable version of \a error to \a debug.
 */
 
 QDebug operator<<(QDebug debug, const QDeclarativeError &error)
diff --git a/src/declarative/qml/qdeclarativeexpression.cpp b/src/declarative/qml/qdeclarativeexpression.cpp
index 05240a2..f561a7e 100644
--- a/src/declarative/qml/qdeclarativeexpression.cpp
+++ b/src/declarative/qml/qdeclarativeexpression.cpp
@@ -479,18 +479,18 @@ QVariant QDeclarativeExpressionPrivate::value(QObject *secondaryScope, bool *isU
 }
 
 /*!
-    Returns the value of the expression, or an invalid QVariant if the
-    expression is invalid or has an error.
+    Evaulates the expression, returning the result of the evaluation,
+    or an invalid QVariant if the expression is invalid or has an error.
 
-    \a isUndefined is set to true if the expression resulted in an
+    \a valueIsUndefined is set to true if the expression resulted in an
     undefined value.
 
     \sa hasError(), error()
 */
-QVariant QDeclarativeExpression::value(bool *isUndefined)
+QVariant QDeclarativeExpression::evaluate(bool *valueIsUndefined)
 {
     Q_D(QDeclarativeExpression);
-    return d->value(0, isUndefined);
+    return d->value(0, valueIsUndefined);
 }
 
 /*!
@@ -569,7 +569,7 @@ QObject *QDeclarativeExpression::scopeObject() const
 }
 
 /*!
-    Returns true if the last call to value() resulted in an error, 
+    Returns true if the last call to evaluate() resulted in an error,
     otherwise false.
     
     \sa error(), clearError()
@@ -593,7 +593,7 @@ void QDeclarativeExpression::clearError()
 }
 
 /*!
-    Return any error from the last call to value().  If there was no error,
+    Return any error from the last call to evaluate().  If there was no error,
     this returns an invalid QDeclarativeError instance.
 
     \sa hasError(), clearError()
@@ -606,10 +606,9 @@ QDeclarativeError QDeclarativeExpression::error() const
 }
 
 /*! \internal */
-void QDeclarativeExpression::__q_notify()
+void QDeclarativeExpressionPrivate::_q_notify()
 {
-    Q_D(QDeclarativeExpression);
-    d->emitValueChanged();
+    emitValueChanged();
 }
 
 void QDeclarativeExpressionPrivate::clearGuards()
@@ -625,7 +624,7 @@ void QDeclarativeExpressionPrivate::updateGuards(const QPODVector<QDeclarativeEn
 
     static int notifyIdx = -1;
     if (notifyIdx == -1) 
-        notifyIdx = QDeclarativeExpression::staticMetaObject.indexOfMethod("__q_notify()");
+        notifyIdx = QDeclarativeExpression::staticMetaObject.indexOfMethod("_q_notify()");
 
     if (properties.count() != data->guardListLength) {
         QDeclarativeNotifierEndpoint *newGuardList = 
@@ -695,14 +694,13 @@ void QDeclarativeExpressionPrivate::updateGuards(const QPODVector<QDeclarativeEn
             if (!outputWarningHeader) {
                 outputWarningHeader = true;
                 qWarning() << "QDeclarativeExpression: Expression" << q->expression()
-                    << "depends on non-NOTIFYable properties:";
+                           << "depends on non-NOTIFYable properties:";
             }
 
             const QMetaObject *metaObj = property.object->metaObject();
             QMetaProperty metaProp = metaObj->property(property.coreIndex);
 
-            qWarning().nospace() << "    " << metaObj->className()
-                                 << "::" << metaProp.name();
+            qWarning().nospace() << "    " << metaObj->className() << "::" << metaProp.name();
         }
     }
 }
@@ -712,7 +710,7 @@ void QDeclarativeExpressionPrivate::updateGuards(const QPODVector<QDeclarativeEn
 
     Emitted each time the expression value changes from the last time it was
     evaluated.  The expression must have been evaluated at least once (by
-    calling QDeclarativeExpression::value()) before this signal will be emitted.
+    calling QDeclarativeExpression::evaluate()) before this signal will be emitted.
 */
 
 void QDeclarativeExpressionPrivate::emitValueChanged()
@@ -772,3 +770,4 @@ bool QDeclarativeAbstractExpression::isValid() const
 
 QT_END_NAMESPACE
 
+#include <moc_qdeclarativeexpression.cpp>
diff --git a/src/declarative/qml/qdeclarativeexpression.h b/src/declarative/qml/qdeclarativeexpression.h
index 35d6949..6c72e4d 100644
--- a/src/declarative/qml/qdeclarativeexpression.h
+++ b/src/declarative/qml/qdeclarativeexpression.h
@@ -86,7 +86,7 @@ public:
     void clearError();
     QDeclarativeError error() const;
 
-    QVariant value(bool *isUndefined = 0);
+    QVariant evaluate(bool *valueIsUndefined = 0);
 
 Q_SIGNALS:
     void valueChanged();
@@ -97,13 +97,12 @@ protected:
     QDeclarativeExpression(QDeclarativeContextData *, void *, QDeclarativeRefCount *rc, 
                            QObject *me, const QString &, int, QDeclarativeExpressionPrivate &dd);
 
-private Q_SLOTS:
-    void __q_notify();
-
 private:
     QDeclarativeExpression(QDeclarativeContextData *, const QString &, QObject *);
 
+    Q_DISABLE_COPY(QDeclarativeExpression)
     Q_DECLARE_PRIVATE(QDeclarativeExpression)
+    Q_PRIVATE_SLOT(d_func(), void _q_notify())
     friend class QDeclarativeDebugger;
     friend class QDeclarativeContext;
     friend class QDeclarativeVME;
diff --git a/src/declarative/qml/qdeclarativeexpression_p.h b/src/declarative/qml/qdeclarativeexpression_p.h
index d39aa2c..4ff3162 100644
--- a/src/declarative/qml/qdeclarativeexpression_p.h
+++ b/src/declarative/qml/qdeclarativeexpression_p.h
@@ -164,6 +164,7 @@ public:
         return expr->q_func();
     }
 
+    void _q_notify();
     virtual void emitValueChanged();
 
     static void exceptionToError(QScriptEngine *, QDeclarativeError &);
diff --git a/src/declarative/qml/qdeclarativeextensionplugin.cpp b/src/declarative/qml/qdeclarativeextensionplugin.cpp
index 762c642d..863bfc4 100644
--- a/src/declarative/qml/qdeclarativeextensionplugin.cpp
+++ b/src/declarative/qml/qdeclarativeextensionplugin.cpp
@@ -59,6 +59,11 @@ QT_BEGIN_NAMESPACE
     function, and exporting the class using the Q_EXPORT_PLUGIN2()
     macro.
 
+    QML extension plugins can be used to provide either application-specific or
+    library-like plugins. Library plugins should limit themselves to registering types,
+    as any manipulation of the engine's root context may cause conflicts
+    or other issues in the library user's code.
+
     See \l {Extending QML in C++} for details how to write a QML extension plugin.
     See \l {How to Create Qt Plugins} for general Qt plugin documentation.
 
@@ -85,7 +90,7 @@ QDeclarativeExtensionPlugin::QDeclarativeExtensionPlugin(QObject *parent)
 }
 
 /*!
-  Destructor.
+  Destroys the plugin.
  */
 QDeclarativeExtensionPlugin::~QDeclarativeExtensionPlugin()
 {
@@ -94,7 +99,9 @@ QDeclarativeExtensionPlugin::~QDeclarativeExtensionPlugin()
 /*!
     \fn void QDeclarativeExtensionPlugin::initializeEngine(QDeclarativeEngine *engine, const char *uri)
 
-    Initializes the extension from the \a uri using the \a engine.
+    Initializes the extension from the \a uri using the \a engine. Here an application
+    plugin might, for example, expose some data or objects to QML,
+    as context properties on the engine's root context.
 */
 
 void QDeclarativeExtensionPlugin::initializeEngine(QDeclarativeEngine *engine, const char *uri)
diff --git a/src/declarative/qml/qdeclarativeextensionplugin.h b/src/declarative/qml/qdeclarativeextensionplugin.h
index 8095ec7..8a9378a 100644
--- a/src/declarative/qml/qdeclarativeextensionplugin.h
+++ b/src/declarative/qml/qdeclarativeextensionplugin.h
@@ -64,6 +64,9 @@ public:
 
     virtual void registerTypes(const char *uri) = 0;
     virtual void initializeEngine(QDeclarativeEngine *engine, const char *uri);
+
+private:
+    Q_DISABLE_COPY(QDeclarativeExtensionPlugin)
 };
 
 QT_END_NAMESPACE
diff --git a/src/declarative/qml/qdeclarativeimageprovider.cpp b/src/declarative/qml/qdeclarativeimageprovider.cpp
index b992b9f..4be3472 100644
--- a/src/declarative/qml/qdeclarativeimageprovider.cpp
+++ b/src/declarative/qml/qdeclarativeimageprovider.cpp
@@ -45,31 +45,39 @@ QT_BEGIN_NAMESPACE
 
 /*!
     \class QDeclarativeImageProvider
-    \brief The QDeclarativeImageProvider class provides an interface for threaded image requests.
+    \since 4.7
+    \brief The QDeclarativeImageProvider class provides an interface for threaded image requests in QML.
 
-    Note: the request() method may be called by multiple threads, so ensure the
+    QDeclarativeImageProvider can be used by a QDeclarativeEngine to provide images to QML asynchronously.
+    The image request will be run in a low priority thread, allowing potentially costly image
+    loading to be done in the background, without affecting the performance of the UI.
+
+    See the QDeclarativeEngine::addImageProvider() documentation for an
+    example of how a custom QDeclarativeImageProvider can be constructed and used.
+
+    \note the request() method may be called by multiple threads, so ensure the
     implementation of this method is reentrant.
 
     \sa QDeclarativeEngine::addImageProvider()
 */
 
 /*!
-  The destructor is virtual.
+  Destroys the image provider.
  */
 QDeclarativeImageProvider::~QDeclarativeImageProvider()
 {
 }
 
 /*!
-    \fn QImage QDeclarativeImageProvider::request(const QString &id, QSize *size, const QSize& requested_size)
+    \fn QImage QDeclarativeImageProvider::request(const QString &id, QSize *size, const QSize& requestedSize)
 
     Implement this method to return the image with \a id.
 
-    If \a requested_size is a valid size, resize the image to that size before returning.
+    If \a requestedSize is a valid size, the image returned should be of that size.
 
-    In any case, \a size must be set to the (original) size of the image.
+    In all cases, \a size must be set to the original size of the image.
 
-    Note: this method may be called by multiple threads, so ensure the
+    \note this method may be called by multiple threads, so ensure the
     implementation of this method is reentrant.
 */
 
diff --git a/src/declarative/qml/qdeclarativeimageprovider.h b/src/declarative/qml/qdeclarativeimageprovider.h
index 50b73fe..cc9c9af 100644
--- a/src/declarative/qml/qdeclarativeimageprovider.h
+++ b/src/declarative/qml/qdeclarativeimageprovider.h
@@ -54,7 +54,7 @@ class Q_DECLARATIVE_EXPORT QDeclarativeImageProvider
 {
 public:
     virtual ~QDeclarativeImageProvider();
-    virtual QImage request(const QString &id, QSize *size, const QSize& requested_size) = 0;
+    virtual QImage request(const QString &id, QSize *size, const QSize& requestedSize) = 0;
 };
 
 QT_END_NAMESPACE
diff --git a/src/declarative/qml/qdeclarativeinfo.cpp b/src/declarative/qml/qdeclarativeinfo.cpp
index 0a4352f..ffed14e 100644
--- a/src/declarative/qml/qdeclarativeinfo.cpp
+++ b/src/declarative/qml/qdeclarativeinfo.cpp
@@ -45,6 +45,7 @@
 #include "qdeclarativecontext.h"
 #include "private/qdeclarativecontext_p.h"
 #include "private/qdeclarativemetatype_p.h"
+#include "private/qdeclarativeengine_p.h"
 
 #include <QCoreApplication>
 
@@ -77,51 +78,98 @@ QT_BEGIN_NAMESPACE
     \endcode
 */
 
-QDeclarativeInfo::QDeclarativeInfo(const QObject *object)
-: QDebug(QtWarningMsg)
+struct QDeclarativeInfoPrivate
 {
-    QString pos = QLatin1String("QML");
-    if (object) {
-        pos += QLatin1Char(' ');
-
-        QString typeName;
-        QDeclarativeType *type = QDeclarativeMetaType::qmlType(object->metaObject());
-        if (type) {
-            typeName = QLatin1String(type->qmlTypeName());
-            int lastSlash = typeName.lastIndexOf(QLatin1Char('/'));
-            if (lastSlash != -1)
-                typeName = typeName.mid(lastSlash+1);
-        } else {
-            typeName = QString::fromUtf8(object->metaObject()->className());
-            int marker = typeName.indexOf(QLatin1String("_QMLTYPE_"));
-            if (marker != -1)
-                typeName = typeName.left(marker);
-        }
+    QDeclarativeInfoPrivate() : ref (1), object(0) {}
 
-        pos += typeName;
-    }
-    QDeclarativeData *ddata = object?QDeclarativeData::get(object):0;
-    pos += QLatin1String(" (");
-    if (ddata) {
-        if (ddata->outerContext && !ddata->outerContext->url.isEmpty()) {
-            pos += ddata->outerContext->url.toString();
-            pos += QLatin1Char(':');
-            pos += QString::number(ddata->lineNumber);
-            pos += QLatin1Char(':');
-            pos += QString::number(ddata->columnNumber);
-        } else {
-            pos += QCoreApplication::translate("QDeclarativeInfo","unknown location");
-        }
-    } else {
-        pos += QCoreApplication::translate("QDeclarativeInfo","unknown location");
-    }
-    pos += QLatin1Char(')');
-    *this << pos;
+    int ref;
+    const QObject *object;
+    QString buffer;
+    QList<QDeclarativeError> errors;
+};
+
+QDeclarativeInfo::QDeclarativeInfo(QDeclarativeInfoPrivate *p)
+: QDebug(&p->buffer), d(p)
+{
     nospace();
 }
 
+QDeclarativeInfo::QDeclarativeInfo(const QDeclarativeInfo &other)
+: QDebug(other), d(other.d)
+{
+    d->ref++;
+}
+
 QDeclarativeInfo::~QDeclarativeInfo()
 {
+    if (0 == --d->ref) {
+        QList<QDeclarativeError> errors = d->errors;
+
+        QDeclarativeEngine *engine = 0;
+
+        if (!d->buffer.isEmpty()) {
+            QDeclarativeError error;
+
+            QObject *object = const_cast<QObject *>(d->object);
+
+            if (object) {
+                engine = qmlEngine(d->object);
+                QString typeName;
+                QDeclarativeType *type = QDeclarativeMetaType::qmlType(object->metaObject());
+                if (type) {
+                    typeName = QLatin1String(type->qmlTypeName());
+                    int lastSlash = typeName.lastIndexOf(QLatin1Char('/'));
+                    if (lastSlash != -1)
+                        typeName = typeName.mid(lastSlash+1);
+                } else {
+                    typeName = QString::fromUtf8(object->metaObject()->className());
+                    int marker = typeName.indexOf(QLatin1String("_QMLTYPE_"));
+                    if (marker != -1)
+                        typeName = typeName.left(marker);
+                }
+
+                d->buffer.prepend(QLatin1String("QML ") + typeName + QLatin1String(": "));
+
+                QDeclarativeData *ddata = QDeclarativeData::get(object, false);
+                if (ddata && ddata->outerContext && !ddata->outerContext->url.isEmpty()) {
+                    error.setUrl(ddata->outerContext->url);
+                    error.setLine(ddata->lineNumber);
+                    error.setColumn(ddata->columnNumber);
+                }
+            }
+
+            error.setDescription(d->buffer);
+
+            errors.prepend(error);
+        }
+
+        QDeclarativeEnginePrivate::warning(engine, errors);
+
+        delete d;
+    }
+}
+
+QDeclarativeInfo qmlInfo(const QObject *me)
+{
+    QDeclarativeInfoPrivate *d = new QDeclarativeInfoPrivate;
+    d->object = me;
+    return QDeclarativeInfo(d);
+}
+
+QDeclarativeInfo qmlInfo(const QObject *me, const QDeclarativeError &error)
+{
+    QDeclarativeInfoPrivate *d = new QDeclarativeInfoPrivate;
+    d->object = me;
+    d->errors << error;
+    return QDeclarativeInfo(d);
+}
+
+QDeclarativeInfo qmlInfo(const QObject *me, const QList<QDeclarativeError> &errors)
+{
+    QDeclarativeInfoPrivate *d = new QDeclarativeInfoPrivate;
+    d->object = me;
+    d->errors = errors;
+    return QDeclarativeInfo(d);
 }
 
 
diff --git a/src/declarative/qml/qdeclarativeinfo.h b/src/declarative/qml/qdeclarativeinfo.h
index 8f69f73..2ac28f4 100644
--- a/src/declarative/qml/qdeclarativeinfo.h
+++ b/src/declarative/qml/qdeclarativeinfo.h
@@ -43,6 +43,8 @@
 #define QDECLARATIVEINFO_H
 
 #include <QtCore/qdebug.h>
+#include <QtCore/qurl.h>
+#include <QtDeclarative/qdeclarativeerror.h>
 
 QT_BEGIN_HEADER
 
@@ -50,10 +52,11 @@ QT_BEGIN_NAMESPACE
 
 QT_MODULE(Declarative)
 
+class QDeclarativeInfoPrivate;
 class Q_DECLARATIVE_EXPORT QDeclarativeInfo : public QDebug
 {
 public:
-    QDeclarativeInfo(const QObject *);
+    QDeclarativeInfo(const QDeclarativeInfo &);
     ~QDeclarativeInfo();
 
     inline QDeclarativeInfo &operator<<(QChar t) { QDebug::operator<<(t); return *this; }
@@ -78,12 +81,20 @@ public:
     inline QDeclarativeInfo &operator<<(const void * t) { QDebug::operator<<(t); return *this; }
     inline QDeclarativeInfo &operator<<(QTextStreamFunction f) { QDebug::operator<<(f); return *this; }
     inline QDeclarativeInfo &operator<<(QTextStreamManipulator m) { QDebug::operator<<(m); return *this; }
+    inline QDeclarativeInfo &operator<<(const QUrl &t) { static_cast<QDebug &>(*this) << t; return *this; }
+
+private:
+    friend Q_DECLARATIVE_EXPORT QDeclarativeInfo qmlInfo(const QObject *me);
+    friend Q_DECLARATIVE_EXPORT QDeclarativeInfo qmlInfo(const QObject *me, const QDeclarativeError &error);
+    friend Q_DECLARATIVE_EXPORT QDeclarativeInfo qmlInfo(const QObject *me, const QList<QDeclarativeError> &errors);
+
+    QDeclarativeInfo(QDeclarativeInfoPrivate *);
+    QDeclarativeInfoPrivate *d;
 };
 
-Q_DECLARATIVE_EXPORT inline QDeclarativeInfo qmlInfo(const QObject *me)
-{
-    return QDeclarativeInfo(me);
-}
+Q_DECLARATIVE_EXPORT QDeclarativeInfo qmlInfo(const QObject *me);
+Q_DECLARATIVE_EXPORT QDeclarativeInfo qmlInfo(const QObject *me, const QDeclarativeError &error);
+Q_DECLARATIVE_EXPORT QDeclarativeInfo qmlInfo(const QObject *me, const QList<QDeclarativeError> &errors);
 
 QT_END_NAMESPACE
 
diff --git a/src/declarative/qml/qdeclarativeinstruction.cpp b/src/declarative/qml/qdeclarativeinstruction.cpp
index d88d06a..99f1cc8 100644
--- a/src/declarative/qml/qdeclarativeinstruction.cpp
+++ b/src/declarative/qml/qdeclarativeinstruction.cpp
@@ -149,9 +149,6 @@ void QDeclarativeCompiledData::dump(QDeclarativeInstruction *instr, int idx)
     case QDeclarativeInstruction::StoreSignal:
         qWarning().nospace() << idx << "\t\t" << line << "\t" << "STORE_SIGNAL\t\t" << instr->storeSignal.signalIndex << "\t" << instr->storeSignal.value << "\t\t" << primitives.at(instr->storeSignal.value);
         break;
-    case QDeclarativeInstruction::StoreScript:
-        qWarning().nospace() << idx << "\t\t" << line << "\t" << "STORE_SCRIPT\t\t" << instr->storeScript.value;
-        break;
     case QDeclarativeInstruction::StoreImportedScript:
         qWarning().nospace() << idx << "\t\t" << line << "\t" << "STORE_IMPORTED_SCRIPT\t" << instr->storeScript.value;
         break;
diff --git a/src/declarative/qml/qdeclarativeinstruction_p.h b/src/declarative/qml/qdeclarativeinstruction_p.h
index e8287c0..c09b157 100644
--- a/src/declarative/qml/qdeclarativeinstruction_p.h
+++ b/src/declarative/qml/qdeclarativeinstruction_p.h
@@ -121,7 +121,6 @@ public:
         StoreInterface,           /* storeObject */
 
         StoreSignal,              /* storeSignal */
-        StoreScript,              /* storeScript */
         StoreImportedScript,      /* storeScript */
         StoreScriptString,        /* storeScriptString */
 
diff --git a/src/declarative/qml/qdeclarativelist.cpp b/src/declarative/qml/qdeclarativelist.cpp
index 45b8cd7..31ef4c2 100644
--- a/src/declarative/qml/qdeclarativelist.cpp
+++ b/src/declarative/qml/qdeclarativelist.cpp
@@ -87,9 +87,10 @@ void QDeclarativeListReferencePrivate::release()
 
 /*!
 \class QDeclarativeListReference
+\since 4.7
 \brief The QDeclarativeListReference class allows the manipulation of QDeclarativeListProperty properties.
 
-QDeclarativeListReference allows programs to read from, and assign values to a QML list property in a 
+QDeclarativeListReference allows C++ programs to read from, and assign values to a QML list property in a
 simple and type safe way.  A QDeclarativeListReference can be created by passing an object and property
 name or through a QDeclarativeProperty instance.  These two are equivalant:
 
@@ -304,6 +305,7 @@ int QDeclarativeListReference::count() const
 
 /*!
 \class QDeclarativeListProperty
+\since 4.7
 \brief The QDeclarativeListProperty class allows applications to explose list-like 
 properties to QML.
 
@@ -313,10 +315,10 @@ The use of a list property from QML looks like this:
 \code
 FruitBasket {
     fruit: [ 
-             Apple {},
-             Orange{},
-             Banana {}
-           ]
+        Apple {},
+        Orange{},
+        Banana{}
+    ]
 }
 \endcode
 
@@ -336,6 +338,9 @@ Q_PROPERTY(QDeclarativeListProperty<Fruit> fruit READ fruit);
 
 QML list properties are typesafe - in this case \c {Fruit} is a QObject type that 
 \c {Apple}, \c {Orange} and \c {Banana} all derive from.
+
+\note QDeclarativeListProperty can only be used for lists of QObject-derived object pointers.
+
 */
 
 /*!
diff --git a/src/declarative/qml/qdeclarativemetatype.cpp b/src/declarative/qml/qdeclarativemetatype.cpp
index 7b71608..d9ea8dc 100644
--- a/src/declarative/qml/qdeclarativemetatype.cpp
+++ b/src/declarative/qml/qdeclarativemetatype.cpp
@@ -99,8 +99,12 @@ struct QDeclarativeMetaTypeData
     StringConverters stringConverters;
 
     struct ModuleInfo {
-        ModuleInfo(int maj, int min) : vmajor(maj), vminor(min) {}
-        int vmajor, vminor;
+        ModuleInfo(int major, int minor)
+            : vmajor_min(major), vminor_min(minor), vmajor_max(major), vminor_max(minor) {}
+        ModuleInfo(int major_min, int minor_min, int major_max, int minor_max)
+            : vmajor_min(major_min), vminor_min(minor_min), vmajor_max(major_max), vminor_max(minor_max) {}
+        int vmajor_min, vminor_min;
+        int vmajor_max, vminor_max;
     };
     typedef QHash<QByteArray, ModuleInfo> ModuleInfoHash;
     ModuleInfoHash modules;
@@ -134,6 +138,7 @@ public:
 
     int m_allocationSize;
     void (*m_newFunc)(void *);
+    QString m_noCreationReason;
 
     const QMetaObject *m_baseMetaObject;
     QDeclarativeAttachedPropertiesFunc m_attachedPropertiesFunc;
@@ -186,6 +191,7 @@ QDeclarativeType::QDeclarativeType(int index, const QDeclarativePrivate::Registe
     d->m_listId = type.listId;
     d->m_allocationSize = type.objectSize;
     d->m_newFunc = type.create;
+    d->m_noCreationReason = type.noCreationReason;
     d->m_baseMetaObject = type.metaObject;
     d->m_attachedPropertiesFunc = type.attachedPropertiesFunction;
     d->m_attachedPropertiesType = type.attachedPropertiesMetaObject;
@@ -221,6 +227,76 @@ bool QDeclarativeType::availableInVersion(int vmajor, int vminor) const
     return vmajor > d->m_version_maj || (vmajor == d->m_version_maj && vminor >= d->m_version_min);
 }
 
+static void clone(QMetaObjectBuilder &builder, const QMetaObject *mo, 
+                  const QMetaObject *ignoreStart, const QMetaObject *ignoreEnd)
+{
+    // Clone Q_CLASSINFO
+    for (int ii = mo->classInfoOffset(); ii < mo->classInfoCount(); ++ii) {
+        QMetaClassInfo info = mo->classInfo(ii);
+
+        int otherIndex = ignoreEnd->indexOfClassInfo(info.name());
+        if (otherIndex >= ignoreStart->classInfoOffset() + ignoreStart->classInfoCount()) {
+            // Skip 
+        } else {
+            builder.addClassInfo(info.name(), info.value());
+        }
+    }
+
+    // Clone Q_PROPERTY
+    for (int ii = mo->propertyOffset(); ii < mo->propertyCount(); ++ii) {
+        QMetaProperty property = mo->property(ii);
+
+        int otherIndex = ignoreEnd->indexOfProperty(property.name());
+        if (otherIndex >= ignoreStart->classInfoOffset() + ignoreStart->classInfoCount()) {
+            builder.addProperty(QByteArray("__qml_ignore__") + property.name(), QByteArray("void"));
+            // Skip 
+        } else {
+            builder.addProperty(property);
+        }
+    }
+
+    // Clone Q_METHODS
+    for (int ii = mo->methodOffset(); ii < mo->methodCount(); ++ii) {
+        QMetaMethod method = mo->method(ii);
+
+        // More complex - need to search name
+        QByteArray name = method.signature();
+        int parenIdx = name.indexOf('(');
+        if (parenIdx != -1) name = name.left(parenIdx);
+
+
+        bool found = false;
+
+        for (int ii = ignoreStart->methodOffset() + ignoreStart->methodCount(); 
+             !found && ii < ignoreEnd->methodOffset() + ignoreEnd->methodCount();
+             ++ii) {
+
+            QMetaMethod other = ignoreEnd->method(ii);
+            QByteArray othername = other.signature();
+            int parenIdx = othername.indexOf('(');
+            if (parenIdx != -1) othername = othername.left(parenIdx);
+
+            found = name == othername;
+        }
+
+        QMetaMethodBuilder m = builder.addMethod(method);
+        if (found) // SKIP
+            m.setAccess(QMetaMethod::Private);
+    }
+
+    // Clone Q_ENUMS
+    for (int ii = mo->enumeratorOffset(); ii < mo->enumeratorCount(); ++ii) {
+        QMetaEnum enumerator = mo->enumerator(ii);
+
+        int otherIndex = ignoreEnd->indexOfEnumerator(enumerator.name());
+        if (otherIndex >= ignoreStart->enumeratorOffset() + ignoreStart->enumeratorCount()) {
+            // Skip 
+        } else {
+            builder.addEnumerator(enumerator);
+        }
+    }
+}
+
 void QDeclarativeTypePrivate::init() const
 {
     if (m_isSetup) return;
@@ -245,8 +321,9 @@ void QDeclarativeTypePrivate::init() const
         QDeclarativeType *t = metaTypeData()->metaObjectToType.value(mo);
         if (t) {
             if (t->d->m_extFunc) {
-                QMetaObject *mmo = new QMetaObject;
-                *mmo = *t->d->m_extMetaObject;
+                QMetaObjectBuilder builder;
+                clone(builder, t->d->m_extMetaObject, t->d->m_baseMetaObject, m_baseMetaObject);
+                QMetaObject *mmo = builder.toMetaObject();
                 mmo->d.superdata = m_baseMetaObject;
                 if (!m_metaObjects.isEmpty())
                     m_metaObjects.last().metaObject->d.superdata = mmo;
@@ -318,6 +395,11 @@ QDeclarativeType::CreateFunc QDeclarativeType::createFunction() const
     return d->m_newFunc;
 }
 
+QString QDeclarativeType::noCreationReason() const
+{
+    return d->m_noCreationReason;
+}
+
 int QDeclarativeType::createSize() const
 {
     return d->m_allocationSize;
@@ -403,10 +485,8 @@ int QDeclarativeType::index() const
 
 int QDeclarativePrivate::registerType(const QDeclarativePrivate::RegisterInterface &interface)
 {
-    if (interface.version > 0) {
-        qWarning("Cannot mix incompatible QML versions.");
-        return -1;
-    }
+    if (interface.version > 0) 
+        qFatal("qmlRegisterType(): Cannot mix incompatible QML versions.");
 
     QWriteLocker lock(metaTypeDataLock());
     QDeclarativeMetaTypeData *data = metaTypeData();
@@ -437,7 +517,7 @@ int QDeclarativePrivate::registerType(const QDeclarativePrivate::RegisterType &t
     if (type.elementName) {
         for (int ii = 0; type.elementName[ii]; ++ii) {
             if (!isalnum(type.elementName[ii])) {
-                qWarning("QDeclarativeMetaType: Invalid QML element name %s", type.elementName);
+                qWarning("qmlRegisterType(): Invalid QML element name \"%s\"", type.elementName);
                 return -1;
             }
         }
@@ -468,9 +548,15 @@ int QDeclarativePrivate::registerType(const QDeclarativePrivate::RegisterType &t
     if (type.uri) {
         QByteArray mod(type.uri);
         QDeclarativeMetaTypeData::ModuleInfoHash::Iterator it = data->modules.find(mod);
-        if (it == data->modules.end()
-                || ((*it).vmajor < type.versionMajor || ((*it).vmajor == type.versionMajor && (*it).vminor < type.versionMinor))) {
+        if (it == data->modules.end()) {
+            // New module
             data->modules.insert(mod, QDeclarativeMetaTypeData::ModuleInfo(type.versionMajor,type.versionMinor));
+        } else if ((*it).vmajor_max < type.versionMajor || ((*it).vmajor_max == type.versionMajor && (*it).vminor_max < type.versionMinor)) {
+            // Newer module
+            data->modules.insert(mod, QDeclarativeMetaTypeData::ModuleInfo((*it).vmajor_min, (*it).vminor_min, type.versionMajor, type.versionMinor));
+        } else if ((*it).vmajor_min > type.versionMajor || ((*it).vmajor_min == type.versionMajor && (*it).vminor_min > type.versionMinor)) {
+            // Older module
+            data->modules.insert(mod, QDeclarativeMetaTypeData::ModuleInfo(type.versionMajor, type.versionMinor, (*it).vmajor_min, (*it).vminor_min));
         }
     }
 
@@ -478,15 +564,23 @@ int QDeclarativePrivate::registerType(const QDeclarativePrivate::RegisterType &t
 }
 
 /*
-    Have any types been registered for \a module with at least versionMajor.versionMinor.
+    Have any types been registered for \a module with at least versionMajor.versionMinor, and types
+    for \a module with at most versionMajor.versionMinor.
+
+    So if only 4.7 and 4.9 have been registered, 4.7,4.8, and 4.9 are valid, but not 4.6 nor 4.10.
+
+    Passing -1 for both \a versionMajor \a versionMinor will return true if any version is installed.
 */
 bool QDeclarativeMetaType::isModule(const QByteArray &module, int versionMajor, int versionMinor)
 {
     QDeclarativeMetaTypeData *data = metaTypeData();
     QDeclarativeMetaTypeData::ModuleInfoHash::Iterator it = data->modules.find(module);
     return it != data->modules.end()
-        && ((*it).vmajor > versionMajor ||
-                ((*it).vmajor == versionMajor && (*it).vminor >= versionMinor));
+        && ((versionMajor<0 && versionMinor<0) ||
+                (((*it).vmajor_max > versionMajor ||
+                    ((*it).vmajor_max == versionMajor && (*it).vminor_max >= versionMinor))
+                && ((*it).vmajor_min < versionMajor ||
+                    ((*it).vmajor_min == versionMajor && (*it).vminor_min <= versionMinor))));
 }
 
 QObject *QDeclarativeMetaType::toQObject(const QVariant &v, bool *ok)
diff --git a/src/declarative/qml/qdeclarativemetatype_p.h b/src/declarative/qml/qdeclarativemetatype_p.h
index 70b7c90..bf6a700 100644
--- a/src/declarative/qml/qdeclarativemetatype_p.h
+++ b/src/declarative/qml/qdeclarativemetatype_p.h
@@ -123,6 +123,7 @@ public:
 
     bool isCreatable() const;
     bool isExtendedType() const;
+    QString noCreationReason() const;
 
     bool isInterface() const;
     int typeId() const;
diff --git a/src/declarative/qml/qdeclarativenetworkaccessmanagerfactory.cpp b/src/declarative/qml/qdeclarativenetworkaccessmanagerfactory.cpp
index 9dd7d39..b116129 100644
--- a/src/declarative/qml/qdeclarativenetworkaccessmanagerfactory.cpp
+++ b/src/declarative/qml/qdeclarativenetworkaccessmanagerfactory.cpp
@@ -45,8 +45,8 @@ QT_BEGIN_NAMESPACE
 
 /*!
     \class QDeclarativeNetworkAccessManagerFactory
-  \since 4.7
-    \brief The QDeclarativeNetworkAccessManagerFactory class provides a factory for QNetworkAccessManager
+    \since 4.7
+    \brief The QDeclarativeNetworkAccessManagerFactory class provides a factory for QNetworkAccessManager for use by a Qt Declarative engine.
 
     QNetworkAccessManager is used for all network access by QML.
     By implementing a factory it is possible to create custom
@@ -56,12 +56,17 @@ QT_BEGIN_NAMESPACE
     To implement a factory, subclass QDeclarativeNetworkAccessManagerFactory and implement
     the create() method.
 
+    To use a factory, assign it to the relevant QDeclarativeEngine using
+    QDeclarativeEngine::setNetworkAccessManagerFactory().
+
     If the created QNetworkAccessManager becomes invalid, due to a
     change in proxy settings, for example, call the invalidate() method.
     This will cause all QNetworkAccessManagers to be recreated.
 
     Note: the create() method may be called by multiple threads, so ensure the
     implementation of this method is reentrant.
+
+    \sa QDeclarativeEngine::setNetworkAccessManagerFactory()
 */
 
 /*!
@@ -77,6 +82,8 @@ QDeclarativeNetworkAccessManagerFactory::~QDeclarativeNetworkAccessManagerFactor
     Implement this method to create a QNetworkAccessManager with \a parent.
     This allows proxies, caching and cookie support to be setup appropriately.
 
+    This method should return a new QNetworkAccessManager each time it is called.
+
     Note: this method may be called by multiple threads, so ensure the
     implementation of this method is reentrant.
 */
diff --git a/src/declarative/qml/qdeclarativeobjectscriptclass.cpp b/src/declarative/qml/qdeclarativeobjectscriptclass.cpp
index 5773fe6..bb5c8b7 100644
--- a/src/declarative/qml/qdeclarativeobjectscriptclass.cpp
+++ b/src/declarative/qml/qdeclarativeobjectscriptclass.cpp
@@ -59,12 +59,17 @@ Q_DECLARE_METATYPE(QScriptValue);
 QT_BEGIN_NAMESPACE
 
 struct ObjectData : public QScriptDeclarativeClass::Object {
-    ObjectData(QObject *o, int t) : object(o), type(t) {}
+    ObjectData(QObject *o, int t) : object(o), type(t) {
+        if (o) {
+            QDeclarativeData *ddata = QDeclarativeData::get(object, true);
+            if (ddata) ddata->objectDataRefCount++;
+        }
+    }
 
     virtual ~ObjectData() {
         if (object && !object->parent()) {
             QDeclarativeData *ddata = QDeclarativeData::get(object, false);
-            if (ddata && !ddata->indestructible)
+            if (ddata && !ddata->indestructible && 0 == --ddata->objectDataRefCount)
                 object->deleteLater();
         }
     }
@@ -348,7 +353,13 @@ void QDeclarativeObjectScriptClass::setProperty(QObject *obj,
     if (delBinding)
         delBinding->destroy();
 
-    if (value.isUndefined() && lastData->flags & QDeclarativePropertyCache::Data::IsResettable) {
+    if (value.isNull() && lastData->flags & QDeclarativePropertyCache::Data::IsQObjectDerived) {
+        QObject *o = 0;
+        int status = -1;
+        int flags = 0;
+        void *argv[] = { &o, 0, &status, &flags };
+        QMetaObject::metacall(obj, QMetaObject::WriteProperty, lastData->coreIndex, argv);
+    } else if (value.isUndefined() && lastData->flags & QDeclarativePropertyCache::Data::IsResettable) {
         void *a[] = { 0 };
         QMetaObject::metacall(obj, QMetaObject::ResetProperty, lastData->coreIndex, a);
     } else if (value.isUndefined() && lastData->propType == qMetaTypeId<QVariant>()) {
@@ -458,12 +469,21 @@ QStringList QDeclarativeObjectScriptClass::propertyNames(Object *object)
         cache = ddata->propertyCache;
     if (!cache) {
         cache = enginePrivate->cache(obj);
-        if (cache && ddata) { cache->addref(); ddata->propertyCache = cache; }
+        if (cache) {
+            if (ddata) { cache->addref(); ddata->propertyCache = cache; }
+        } else {
+            // Not cachable - fall back to QMetaObject (eg. dynamic meta object)
+            // XXX QDeclarativeOpenMetaObject has a cache, so this is suboptimal.
+            // XXX This is a workaround for QTBUG-9420.
+            const QMetaObject *mo = obj->metaObject();
+            QStringList r;
+            int pc = mo->propertyCount();
+            int po = mo->propertyOffset();
+            for (int i=po; i<pc; ++i)
+                r += QString::fromUtf8(mo->property(i).name());
+            return r;
+        }
     }
-
-    if (!cache)
-        return QStringList();
-
     return cache->propertyNames();
 }
 
diff --git a/src/declarative/qml/qdeclarativeparser.cpp b/src/declarative/qml/qdeclarativeparser.cpp
index d1f209a..b38bd76 100644
--- a/src/declarative/qml/qdeclarativeparser.cpp
+++ b/src/declarative/qml/qdeclarativeparser.cpp
@@ -89,8 +89,6 @@ QDeclarativeParser::Object::~Object()
         prop.first->release();
     foreach(const DynamicProperty &prop, dynamicProperties)
         if (prop.defaultValue) prop.defaultValue->release();
-    foreach(Object *obj, scriptBlockObjects)
-        obj->release();
 }
 
 void Object::setBindingBit(int b)
diff --git a/src/declarative/qml/qdeclarativeparser_p.h b/src/declarative/qml/qdeclarativeparser_p.h
index 00fc65b..0870cfb 100644
--- a/src/declarative/qml/qdeclarativeparser_p.h
+++ b/src/declarative/qml/qdeclarativeparser_p.h
@@ -160,8 +160,6 @@ namespace QDeclarativeParser
         Property *defaultProperty;
         QHash<QByteArray, Property *> properties;
 
-        QList<Object *> scriptBlockObjects;
-
         // Output of the compilation phase (these properties continue to exist
         // in either the defaultProperty or properties members too)
         void addValueProperty(Property *);
@@ -190,7 +188,9 @@ namespace QDeclarativeParser
             QList<int> lineNumbers;
             QList<Pragmas> pragmas;
         };
+#if 0
         QList<ScriptBlock> scripts;
+#endif
 
         // The bytes to cast instances by to get to the QDeclarativeParserStatus 
         // interface.  -1 indicates the type doesn't support this interface.
diff --git a/src/declarative/qml/qdeclarativeparserstatus.cpp b/src/declarative/qml/qdeclarativeparserstatus.cpp
index ec6260e..978bfb4 100644
--- a/src/declarative/qml/qdeclarativeparserstatus.cpp
+++ b/src/declarative/qml/qdeclarativeparserstatus.cpp
@@ -45,8 +45,36 @@ QT_BEGIN_NAMESPACE
 
 /*!
     \class QDeclarativeParserStatus
-  \since 4.7
-    \brief The QDeclarativeParserStatus class provides updates on the parser state.
+    \since 4.7
+    \brief The QDeclarativeParserStatus class provides updates on the QML parser state.
+
+    QDeclarativeParserStatus provides a mechanism for classes instantiated by
+    a QDeclarativeEngine to receive notification at key points in their creation.
+
+    This class is often used for optimization purposes, as it allows you to defer an
+    expensive operation until after all the properties have been set on an
+    object. For example, QML's \l {Text} element uses the parser status
+    to defer text layout until all of its properties have been set (we
+    don't want to layout when the \c text is assigned, and then relayout
+    when the \c font is assigned, and relayout again when the \c width is assigned,
+    and so on).
+
+    To use QDeclarativeParserStatus, you must inherit both a QObject-derived class
+    and QDeclarativeParserStatus, and use the Q_INTERFACES() macro.
+
+    \code
+    class MyObject : public QObject, public QDeclarativeParserStatus
+    {
+        Q_OBJECT
+        Q_INTERFACES(QDeclarativeParserStatus)
+
+    public:
+        MyObject(QObject *parent = 0);
+        ...
+        void classBegin();
+        void componentComplete();
+    }
+    \endcode
 */
 
 /*! \internal */
diff --git a/src/declarative/qml/qdeclarativeprivate.h b/src/declarative/qml/qdeclarativeprivate.h
index 6e240d8..e657dd5 100644
--- a/src/declarative/qml/qdeclarativeprivate.h
+++ b/src/declarative/qml/qdeclarativeprivate.h
@@ -184,6 +184,7 @@ namespace QDeclarativePrivate
         int listId;
         int objectSize;
         void (*create)(void *);
+        QString noCreationReason;
 
         const char *uri;
         int versionMajor;
diff --git a/src/declarative/qml/qdeclarativeproperty.cpp b/src/declarative/qml/qdeclarativeproperty.cpp
index afd0d84..3881d0a 100644
--- a/src/declarative/qml/qdeclarativeproperty.cpp
+++ b/src/declarative/qml/qdeclarativeproperty.cpp
@@ -64,6 +64,7 @@ QT_BEGIN_NAMESPACE
 
 /*!
 \class QDeclarativeProperty
+\since 4.7
 \brief The QDeclarativeProperty class abstracts accessing properties on objects created from  QML.
 
 As QML uses Qt's meta-type system all of the existing QMetaObject classes can be used to introspect
diff --git a/src/declarative/qml/qdeclarativepropertyvaluesource.cpp b/src/declarative/qml/qdeclarativepropertyvaluesource.cpp
index b106d4f..a0ed78f 100644
--- a/src/declarative/qml/qdeclarativepropertyvaluesource.cpp
+++ b/src/declarative/qml/qdeclarativepropertyvaluesource.cpp
@@ -47,8 +47,10 @@ QT_BEGIN_NAMESPACE
 
 /*!
     \class QDeclarativePropertyValueSource
-    \brief The QDeclarativePropertyValueSource class is inherited by property value sources such as animations and bindings.
-    \internal
+    \brief The QDeclarativePropertyValueSource class is an interface for property value sources such as animations and bindings.
+
+    See \l{Property Value Sources} for information on writing custom property
+    value sources.
  */
 
 /*!
diff --git a/src/declarative/qml/qdeclarativeproxymetaobject.cpp b/src/declarative/qml/qdeclarativeproxymetaobject.cpp
index fe0dce7..c2dce0a 100644
--- a/src/declarative/qml/qdeclarativeproxymetaobject.cpp
+++ b/src/declarative/qml/qdeclarativeproxymetaobject.cpp
@@ -41,17 +41,11 @@
 
 #include "private/qdeclarativeproxymetaobject_p.h"
 
-#include <QDebug>
-
 QT_BEGIN_NAMESPACE
 
 QDeclarativeProxyMetaObject::QDeclarativeProxyMetaObject(QObject *obj, QList<ProxyData> *mList)
 : metaObjects(mList), proxies(0), parent(0), object(obj)
 {
-#ifdef QDECLARATIVEPROXYMETAOBJECT_DEBUG
-    qWarning() << "QDeclarativeProxyMetaObject" << obj->metaObject()->className();
-#endif
-
     *static_cast<QMetaObject *>(this) = *metaObjects->first().metaObject;
 
     QObjectPrivate *op = QObjectPrivate::get(obj);
@@ -59,14 +53,6 @@ QDeclarativeProxyMetaObject::QDeclarativeProxyMetaObject(QObject *obj, QList<Pro
         parent = static_cast<QAbstractDynamicMetaObject*>(op->metaObject);
 
     op->metaObject = this;
-
-#ifdef QDECLARATIVEPROXYMETAOBJECT_DEBUG
-    const QMetaObject *mo = obj->metaObject();
-    while(mo) {
-        qWarning() << "    " << mo->className();
-        mo = mo->superClass();
-    }
-#endif
 }
 
 QDeclarativeProxyMetaObject::~QDeclarativeProxyMetaObject()
diff --git a/src/declarative/qml/qdeclarativescriptparser.cpp b/src/declarative/qml/qdeclarativescriptparser.cpp
index ac49332..e7c8a12 100644
--- a/src/declarative/qml/qdeclarativescriptparser.cpp
+++ b/src/declarative/qml/qdeclarativescriptparser.cpp
@@ -296,27 +296,12 @@ ProcessAST::defineObjectBinding_helper(AST::UiQualifiedId *propertyName,
         if (lastTypeDot >= 0)
             resolvableObjectType.replace(QLatin1Char('.'),QLatin1Char('/'));
 
-        bool isScript = resolvableObjectType == QLatin1String("Script");
-
-        if (isScript) {
-            if (_stateStack.isEmpty() || _stateStack.top().property) {
-                QDeclarativeError error;
-                error.setDescription(QCoreApplication::translate("QDeclarativeParser","Invalid use of Script block"));
-                error.setLine(typeLocation.startLine);
-                error.setColumn(typeLocation.startColumn);
-                _parser->_errors << error;
-                return 0;
-            }
-        }
-
         Object *obj = new Object;
 
-        if (!isScript) {
-            QDeclarativeScriptParser::TypeReference *typeRef = _parser->findOrCreateType(resolvableObjectType);
-            obj->type = typeRef->id;
+        QDeclarativeScriptParser::TypeReference *typeRef = _parser->findOrCreateType(resolvableObjectType);
+        obj->type = typeRef->id;
 
-            typeRef->refObjects.append(obj);
-        }
+        typeRef->refObjects.append(obj);
 
         // XXX this doesn't do anything (_scope never builds up)
         _scope.append(resolvableObjectType);
@@ -325,11 +310,7 @@ ProcessAST::defineObjectBinding_helper(AST::UiQualifiedId *propertyName,
 
         obj->location = location;
 
-        if (isScript) {
-
-            _stateStack.top().object->scriptBlockObjects.append(obj);
-
-        } else if (propertyCount) {
+        if (propertyCount) {
 
             Property *prop = currentProperty();
             Value *v = new Value;
@@ -535,7 +516,6 @@ bool ProcessAST::visit(AST::UiPublicMember *node)
         // { "time", Object::DynamicProperty::Time, "QTime" },
         // { "date", Object::DynamicProperty::Date, "QDate" },
         { "date", Object::DynamicProperty::DateTime, "QDateTime" },
-        { "var", Object::DynamicProperty::Variant, "QVariant" },
         { "variant", Object::DynamicProperty::Variant, "QVariant" }
     };
     const int propTypeNameToTypesCount = sizeof(propTypeNameToTypes) /
@@ -647,11 +627,6 @@ bool ProcessAST::visit(AST::UiPublicMember *node)
         property.location = location(node->firstSourceLocation(),
                                      node->lastSourceLocation());
 
-        if (memberType == QLatin1String("var")) 
-            qWarning().nospace() << qPrintable(_parser->_scriptFile) << ":" << property.location.start.line << ":" 
-                                 << property.location.start.column << ": var type has been replaced by variant.  "
-                                 << "Support will be removed entirely shortly.";
-
         if (node->expression) { // default value
             property.defaultValue = new Property;
             property.defaultValue->parent = _stateStack.top().object;
@@ -827,62 +802,29 @@ bool ProcessAST::visit(AST::UiSourceElement *node)
 {
     QDeclarativeParser::Object *obj = currentObject();
 
-    bool isScript = (obj && obj->typeName == "Script");
-
-    if (!isScript) {
-
-        if (AST::FunctionDeclaration *funDecl = AST::cast<AST::FunctionDeclaration *>(node->sourceElement)) {
+    if (AST::FunctionDeclaration *funDecl = AST::cast<AST::FunctionDeclaration *>(node->sourceElement)) {
 
-            Object::DynamicSlot slot;
-            slot.location = location(funDecl->firstSourceLocation(), funDecl->lastSourceLocation());
+        Object::DynamicSlot slot;
+        slot.location = location(funDecl->firstSourceLocation(), funDecl->lastSourceLocation());
 
-            AST::FormalParameterList *f = funDecl->formals;
-            while (f) {
-                slot.parameterNames << f->name->asString().toUtf8();
-                f = f->finish();
-            }
-
-            QString body = textAt(funDecl->lbraceToken, funDecl->rbraceToken);
-            slot.name = funDecl->name->asString().toUtf8();
-            slot.body = body;
-            obj->dynamicSlots << slot;
-
-        } else {
-            QDeclarativeError error;
-            error.setDescription(QCoreApplication::translate("QDeclarativeParser","JavaScript declaration outside Script element"));
-            error.setLine(node->firstSourceLocation().startLine);
-            error.setColumn(node->firstSourceLocation().startColumn);
-            _parser->_errors << error;
+        AST::FormalParameterList *f = funDecl->formals;
+        while (f) {
+            slot.parameterNames << f->name->asString().toUtf8();
+            f = f->finish();
         }
-        return false;
-
-    } else {
-        QString source;
 
-        int line = 0;
-        if (AST::FunctionDeclaration *funDecl = AST::cast<AST::FunctionDeclaration *>(node->sourceElement)) {
-            line = funDecl->functionToken.startLine;
-            source = asString(funDecl);
-        } else if (AST::VariableStatement *varStmt = AST::cast<AST::VariableStatement *>(node->sourceElement)) {
-            // ignore variable declarations
-            line = varStmt->declarationKindToken.startLine;
+        QString body = textAt(funDecl->lbraceToken, funDecl->rbraceToken);
+        slot.name = funDecl->name->asString().toUtf8();
+        slot.body = body;
+        obj->dynamicSlots << slot;
 
-            QDeclarativeError error;
-            error.setDescription(QCoreApplication::translate("QDeclarativeParser", "Variable declarations not allow in inline Script blocks"));
-            error.setLine(node->firstSourceLocation().startLine);
-            error.setColumn(node->firstSourceLocation().startColumn);
-            _parser->_errors << error;
-            return false;
-        }
-
-        Value *value = new Value;
-        value->location = location(node->firstSourceLocation(),
-                                   node->lastSourceLocation());
-        value->value = QDeclarativeParser::Variant(source);
-
-        obj->getDefaultProperty()->addValue(value);
+    } else {
+        QDeclarativeError error;
+        error.setDescription(QCoreApplication::translate("QDeclarativeParser","JavaScript declaration outside Script element"));
+        error.setLine(node->firstSourceLocation().startLine);
+        error.setColumn(node->firstSourceLocation().startColumn);
+        _parser->_errors << error;
     }
-
     return false;
 }
 
diff --git a/src/declarative/qml/qdeclarativescriptstring.cpp b/src/declarative/qml/qdeclarativescriptstring.cpp
index 5b9afe9..8f717d1 100644
--- a/src/declarative/qml/qdeclarativescriptstring.cpp
+++ b/src/declarative/qml/qdeclarativescriptstring.cpp
@@ -55,24 +55,35 @@ public:
 
 /*!
 \class QDeclarativeScriptString
-  \since 4.7
+\since 4.7
 \brief The QDeclarativeScriptString class encapsulates a script and its context.
 
-The QDeclarativeScriptString is used by properties that want to accept a script "assignment" from QML.
+QDeclarativeScriptString is used to create QObject properties that accept a script "assignment" from QML.
 
-Normally, the following code would result in a binding being established for the \c script
-property.  If the property had a type of QDeclarativeScriptString, the script - \e {console.log(1921)} - itself
-would be passed to the property and it could choose how to handle it.
+Normally, the following QML would result in a binding being established for the \c script
+property; i.e. \c script would be assigned the value obtained from running \c {myObj.value = Math.max(myValue, 100)}
 
-\code
+\qml
 MyType {
-    script: console.log(1921)
+    script: myObj.value = Math.max(myValue, 100)
 }
+\endqml
+
+If instead the property had a type of QDeclarativeScriptString,
+the script itself -- \e {myObj.value = Math.max(myValue, 100)} -- would be passed to the \c script property
+and the class could choose how to handle it. Typically, the class will evaluate
+the script at some later time using a QDeclarativeExpression.
+
+\code
+QDeclarativeExpression expr(scriptString.context(), scriptString.script(), scriptStr.scopeObject());
+expr.value();
 \endcode
+
+\sa QDeclarativeExpression
 */
 
 /*!
-Construct an empty instance.
+Constructs an empty instance.
 */
 QDeclarativeScriptString::QDeclarativeScriptString()
 :  d(new QDeclarativeScriptStringPrivate)
@@ -80,7 +91,7 @@ QDeclarativeScriptString::QDeclarativeScriptString()
 }
 
 /*!
-Copy \a other.
+Copies \a other.
 */
 QDeclarativeScriptString::QDeclarativeScriptString(const QDeclarativeScriptString &other)
 : d(other.d)
@@ -95,7 +106,7 @@ QDeclarativeScriptString::~QDeclarativeScriptString()
 }
 
 /*!
-Assign \a other to this.
+Assigns \a other to this.
 */
 QDeclarativeScriptString &QDeclarativeScriptString::operator=(const QDeclarativeScriptString &other)
 {
@@ -104,7 +115,7 @@ QDeclarativeScriptString &QDeclarativeScriptString::operator=(const QDeclarative
 }
 
 /*!
-Return the context for the script.
+Returns the context for the script.
 */
 QDeclarativeContext *QDeclarativeScriptString::context() const
 {
diff --git a/src/declarative/qml/qdeclarativetypenotavailable.cpp b/src/declarative/qml/qdeclarativetypenotavailable.cpp
new file mode 100644
index 0000000..7a84732
--- /dev/null
+++ b/src/declarative/qml/qdeclarativetypenotavailable.cpp
@@ -0,0 +1,49 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 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.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, 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.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qdeclarativetypenotavailable_p.h"
+
+int qmlRegisterTypeNotAvailable(const char *uri, int versionMajor, int versionMinor, const char *qmlName, const QString& message)
+{
+    return qmlRegisterUncreatableType<QDeclarativeTypeNotAvailable>(uri,versionMajor,versionMinor,qmlName,message);
+}
+
+QDeclarativeTypeNotAvailable::QDeclarativeTypeNotAvailable() { }
diff --git a/src/declarative/qml/qdeclarativetypenotavailable_p.h b/src/declarative/qml/qdeclarativetypenotavailable_p.h
new file mode 100644
index 0000000..9c1c256
--- /dev/null
+++ b/src/declarative/qml/qdeclarativetypenotavailable_p.h
@@ -0,0 +1,65 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 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.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, 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.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QDECLARATIVETYPENOTAVAILABLE_H
+#define QDECLARATIVETYPENOTAVAILABLE_H
+
+#include <qdeclarative.h>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Declarative)
+
+class QDeclarativeTypeNotAvailable : public QObject {
+    Q_OBJECT
+public:
+    QDeclarativeTypeNotAvailable();
+};
+
+QT_END_NAMESPACE
+
+QML_DECLARE_TYPE(QDeclarativeTypeNotAvailable)
+
+QT_END_HEADER
+
+#endif // QDECLARATIVETYPENOTAVAILABLE_H
diff --git a/src/declarative/qml/qdeclarativevaluetype.cpp b/src/declarative/qml/qdeclarativevaluetype.cpp
index 352a6c0..c6fe161 100644
--- a/src/declarative/qml/qdeclarativevaluetype.cpp
+++ b/src/declarative/qml/qdeclarativevaluetype.cpp
@@ -55,13 +55,15 @@ int qmlRegisterValueTypeEnums(const char *qmlName)
     QByteArray pointerName(name + '*');
 
     QDeclarativePrivate::RegisterType type = {
-        0, 
+        0,
 
         qRegisterMetaType<T *>(pointerName.constData()), 0, 0, 0,
 
-        "Qt", 4, 6, qmlName, &T::staticMetaObject,
+        QString(),
 
-        0, 0, 
+        "Qt", 4, 7, qmlName, &T::staticMetaObject,
+
+        0, 0,
 
         0, 0, 0,
 
@@ -712,7 +714,7 @@ int QDeclarativeFontValueType::pixelSize() const
 
 void QDeclarativeFontValueType::setPixelSize(int size)
 {
-    if (size >=0) {
+    if (size >0) {
         if (pointSizeSet)
             qWarning() << "Both point size and pixel size set. Using pixel size.";
         font.setPixelSize(size);
diff --git a/src/declarative/qml/qdeclarativevme.cpp b/src/declarative/qml/qdeclarativevme.cpp
index fdcbeee..57bf726 100644
--- a/src/declarative/qml/qdeclarativevme.cpp
+++ b/src/declarative/qml/qdeclarativevme.cpp
@@ -623,13 +623,6 @@ QObject *QDeclarativeVME::run(QDeclarativeVMEStack<QObject *> &stack,
             }
             break;
 
-        case QDeclarativeInstruction::StoreScript:
-            {
-                QObject *target = stack.top();
-                ctxt->addScript(scripts.at(instr.storeScript.value), target);
-            }
-            break;
-
         case QDeclarativeInstruction::StoreImportedScript:
             {
                 ctxt->addImportedScript(scripts.at(instr.storeScript.value));
diff --git a/src/declarative/qml/qdeclarativevmemetaobject.cpp b/src/declarative/qml/qdeclarativevmemetaobject.cpp
index c4d47b3..45f04a0 100644
--- a/src/declarative/qml/qdeclarativevmemetaobject.cpp
+++ b/src/declarative/qml/qdeclarativevmemetaobject.cpp
@@ -86,7 +86,6 @@ public:
     inline void setValue(const QDate &);
     inline void setValue(const QDateTime &);
     inline void setValue(const QScriptValue &);
-
 private:
     int type;
     void *data[4]; // Large enough to hold all types
@@ -112,6 +111,9 @@ void QDeclarativeVMEVariant::cleanup()
                type == QMetaType::Bool ||
                type == QMetaType::Double) {
         type = QVariant::Invalid;
+    } else if (type == QMetaType::QObjectStar) {
+        ((QDeclarativeGuard<QObject>*)dataPtr())->~QDeclarativeGuard<QObject>();
+        type = QVariant::Invalid;
     } else if (type == QMetaType::QString) {
         ((QString *)dataPtr())->~QString();
         type = QVariant::Invalid;
@@ -160,7 +162,7 @@ QObject *QDeclarativeVMEVariant::asQObject()
     if (type != QMetaType::QObjectStar) 
         setValue((QObject *)0);
 
-    return *(QObject **)(dataPtr());
+    return *(QDeclarativeGuard<QObject> *)(dataPtr());
 }
 
 const QVariant &QDeclarativeVMEVariant::asQVariant() 
@@ -256,8 +258,9 @@ void QDeclarativeVMEVariant::setValue(QObject *v)
     if (type != QMetaType::QObjectStar) {
         cleanup();
         type = QMetaType::QObjectStar;
+        new (dataPtr()) QDeclarativeGuard<QObject>();
     }
-    *(QObject **)(dataPtr()) = v;
+    *(QDeclarativeGuard<QObject>*)(dataPtr()) = v;
 }
 
 void QDeclarativeVMEVariant::setValue(const QVariant &v)
@@ -465,8 +468,7 @@ int QDeclarativeVMEMetaObject::metaCall(QMetaObject::Call c, int _id, void **a)
                     if (c == QMetaObject::ReadProperty) {
                         *reinterpret_cast<QVariant *>(a[0]) = readVarPropertyAsVariant(id);
                     } else if (c == QMetaObject::WriteProperty) {
-                        needActivate = (data[id].asQVariant() != *reinterpret_cast<QVariant *>(a[0]));
-                        data[id].setValue(*reinterpret_cast<QVariant *>(a[0]));
+                        writeVarProperty(id, *reinterpret_cast<QVariant *>(a[0]));
                     }
 
                 } else {
@@ -682,6 +684,8 @@ QScriptValue QDeclarativeVMEMetaObject::readVarProperty(int id)
 {
     if (data[id].dataType() == qMetaTypeId<QScriptValue>())
         return data[id].asQScriptValue();
+    else if (data[id].dataType() == QMetaType::QObjectStar) 
+        return QDeclarativeEnginePrivate::get(ctxt->engine)->objectClass->newQObject(data[id].asQObject());
     else
         return QDeclarativeEnginePrivate::get(ctxt->engine)->scriptValueFromVariant(data[id].asQVariant());
 }
@@ -690,7 +694,9 @@ QVariant QDeclarativeVMEMetaObject::readVarPropertyAsVariant(int id)
 {
     if (data[id].dataType() == qMetaTypeId<QScriptValue>())
         return QDeclarativeEnginePrivate::get(ctxt->engine)->scriptValueToVariant(data[id].asQScriptValue());
-    else
+    else if (data[id].dataType() == QMetaType::QObjectStar) 
+        return QVariant::fromValue(data[id].asQObject());
+    else 
         return data[id].asQVariant();
 }
 
@@ -700,6 +706,15 @@ void QDeclarativeVMEMetaObject::writeVarProperty(int id, const QScriptValue &val
     activate(object, methodOffset + id, 0);
 }
 
+void QDeclarativeVMEMetaObject::writeVarProperty(int id, const QVariant &value)
+{
+    if (value.userType() == QMetaType::QObjectStar) 
+        data[id].setValue(qvariant_cast<QObject *>(value));
+    else
+        data[id].setValue(value);
+    activate(object, methodOffset + id, 0);
+}
+
 void QDeclarativeVMEMetaObject::listChanged(int id)
 {
     activate(object, methodOffset + id, 0);
diff --git a/src/declarative/qml/qdeclarativevmemetaobject_p.h b/src/declarative/qml/qdeclarativevmemetaobject_p.h
index 76390c9..4fc3269 100644
--- a/src/declarative/qml/qdeclarativevmemetaobject_p.h
+++ b/src/declarative/qml/qdeclarativevmemetaobject_p.h
@@ -148,6 +148,7 @@ private:
     QScriptValue readVarProperty(int);
     QVariant readVarPropertyAsVariant(int);
     void writeVarProperty(int, const QScriptValue &);
+    void writeVarProperty(int, const QVariant &);
 
     QAbstractDynamicMetaObject *parent;
 
diff --git a/src/declarative/qml/qdeclarativewatcher.cpp b/src/declarative/qml/qdeclarativewatcher.cpp
index 9ea84b8..842b3c4 100644
--- a/src/declarative/qml/qdeclarativewatcher.cpp
+++ b/src/declarative/qml/qdeclarativewatcher.cpp
@@ -110,7 +110,7 @@ void QDeclarativeWatchProxy::notifyValueChanged()
 {
     QVariant v;
     if (m_expr)
-        v = m_expr->value();
+        v = m_expr->evaluate();
     else
         v = m_property.read(m_object);
 
diff --git a/src/declarative/qml/qdeclarativexmlhttprequest.cpp b/src/declarative/qml/qdeclarativexmlhttprequest.cpp
index be2a1a7..b7e1832 100644
--- a/src/declarative/qml/qdeclarativexmlhttprequest.cpp
+++ b/src/declarative/qml/qdeclarativexmlhttprequest.cpp
@@ -1305,7 +1305,7 @@ void QDeclarativeXMLHttpRequest::printError(const QScriptValue& sv)
 {
     QDeclarativeError error;
     QDeclarativeExpressionPrivate::exceptionToError(sv.engine(), error);
-    qWarning().nospace() << qPrintable(error.toString());
+    QDeclarativeEnginePrivate::warning(QDeclarativeEnginePrivate::get(sv.engine()), error);
 }
 
 void QDeclarativeXMLHttpRequest::destroyNetwork()
diff --git a/src/declarative/qml/qml.pri b/src/declarative/qml/qml.pri
index c48662c..3848593 100644
--- a/src/declarative/qml/qml.pri
+++ b/src/declarative/qml/qml.pri
@@ -40,6 +40,7 @@ SOURCES += \
     $$PWD/qdeclarativepropertycache.cpp \
     $$PWD/qdeclarativenotifier.cpp \
     $$PWD/qdeclarativeintegercache.cpp \
+    $$PWD/qdeclarativetypenotavailable.cpp \
     $$PWD/qdeclarativetypenamecache.cpp \
     $$PWD/qdeclarativescriptstring.cpp \
     $$PWD/qdeclarativeobjectscriptclass.cpp \
@@ -112,6 +113,7 @@ HEADERS += \
     $$PWD/qdeclarativepropertycache_p.h \
     $$PWD/qdeclarativenotifier_p.h \
     $$PWD/qdeclarativeintegercache_p.h \
+    $$PWD/qdeclarativetypenotavailable_p.h \
     $$PWD/qdeclarativetypenamecache_p.h \
     $$PWD/qdeclarativescriptstring.h \
     $$PWD/qdeclarativeobjectscriptclass_p.h \