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diff --git a/src/declarative/qml/qmlcontext_p.h b/src/declarative/qml/qmlcontext_p.h
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+/****************************************************************************
+**
+** 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QMLCONTEXT_P_H
+#define QMLCONTEXT_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include "qmlcontext.h"
+
+#include "qmldeclarativedata_p.h"
+#include "qmlengine_p.h"
+#include "qmlintegercache_p.h"
+#include "qmltypenamecache_p.h"
+
+#include <QtCore/qhash.h>
+#include <QtScript/qscriptvalue.h>
+#include <QtCore/qset.h>
+
+#include <private/qobject_p.h>
+#include "qmlguard_p.h"
+
+QT_BEGIN_NAMESPACE
+
+class QmlContext;
+class QmlExpression;
+class QmlEngine;
+class QmlExpression;
+class QmlExpressionPrivate;
+class QmlAbstractExpression;
+class QmlBinding_Id;
+class QmlCompiledBindings;
+
+class Q_DECLARATIVE_EXPORT QmlContextPrivate : public QObjectPrivate
+{
+    Q_DECLARE_PUBLIC(QmlContext)
+public:
+    QmlContextPrivate();
+
+    QmlContext *parent;
+    QmlEngine *engine;
+
+    bool isInternal;
+
+    QmlIntegerCache *propertyNames;
+    QList<QVariant> propertyValues;
+    int notifyIndex;
+
+    QObjectList defaultObjects;
+    int highPriorityCount;
+
+    QList<QScriptValue> scripts;
+    void addScript(const QmlParser::Object::ScriptBlock &, QObject *);
+
+    QUrl url;
+
+    QmlTypeNameCache *imports;
+
+    void init();
+
+    void invalidateEngines();
+    void refreshExpressions();
+    QSet<QmlContext *> childContexts;
+
+    QmlAbstractExpression *expressions;
+
+    QmlDeclarativeData *contextObjects;
+
+    struct IdNotifier 
+    {
+        inline IdNotifier();
+        inline ~IdNotifier();
+        
+        inline void clear();
+
+        IdNotifier *next;
+        IdNotifier**prev;
+        QObject *target;
+        int methodIndex;
+    };
+
+    struct ContextGuard : public QmlGuard<QObject>
+    {
+        inline ContextGuard();
+        inline ContextGuard &operator=(QObject *obj);
+        inline virtual void objectDestroyed(QObject *);
+
+        QmlContextPrivate *priv;
+        IdNotifier *bindings;
+    };
+    ContextGuard *idValues;
+    int idValueCount;
+    void setIdProperty(int, QObject *);
+    void setIdPropertyData(QmlIntegerCache *);
+    void destroyed(ContextGuard *);
+
+    static QmlContextPrivate *get(QmlContext *context) {
+        return static_cast<QmlContextPrivate *>(QObjectPrivate::get(context));
+    }
+    static QmlContext *get(QmlContextPrivate *context) {
+        return static_cast<QmlContext *>(context->q_func());
+    }
+
+    QmlCompiledBindings *optimizedBindings;
+
+    // Only used for debugging
+    QList<QPointer<QObject> > instances;
+};
+
+QmlContextPrivate::IdNotifier::IdNotifier()
+: next(0), prev(0), target(0), methodIndex(-1)
+{
+}
+
+QmlContextPrivate::IdNotifier::~IdNotifier()
+{
+    clear();
+}
+
+void QmlContextPrivate::IdNotifier::clear()
+{
+    if (next) next->prev = prev;
+    if (prev) *prev = next;
+    next = 0; prev = 0; target = 0;
+    methodIndex = -1;
+}
+
+QmlContextPrivate::ContextGuard::ContextGuard() 
+: priv(0), bindings(0) 
+{
+}
+
+QmlContextPrivate::ContextGuard &QmlContextPrivate::ContextGuard::operator=(QObject *obj) 
+{
+    (QmlGuard<QObject>&)*this = obj; return *this;
+}
+
+void QmlContextPrivate::ContextGuard::objectDestroyed(QObject *) 
+{ 
+    priv->destroyed(this); 
+}
+
+QT_END_NAMESPACE
+
+#endif // QMLCONTEXT_P_H