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+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtDeclarative module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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 QDECLARATIVEVME_P_H
+#define QDECLARATIVEVME_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 "qdeclarativeerror.h"
+#include "private/qbitfield_p.h"
+
+#include <QtCore/QString>
+#include <QtCore/QStack>
+
+QT_BEGIN_NAMESPACE
+
+class QObject;
+class QDeclarativeInstruction;
+class QDeclarativeCompiledData;
+class QDeclarativeCompiledData;
+class QDeclarativeContextData;
+
+template<typename T, int N = 128>
+class QDeclarativeVMEStack {
+public:
+    QDeclarativeVMEStack() : index(-1), maxSize(N), data((T *)fixedData) {}
+    ~QDeclarativeVMEStack() { if (data != (T *)fixedData) qFree(data); }
+
+    bool isEmpty() const { return index == -1; }
+    const T &top() const { return data[index]; }
+    void push(const T &i) { ++index; if (index == maxSize) realloc(); data[index] = i; }
+    const T &pop() { --index; return data[index + 1]; }
+    int count() const { return index + 1; }
+    const T &at(int idx) { return data[idx]; }
+
+private:
+    void realloc() {
+        maxSize += N;
+        if (data != (T *)fixedData) {
+            data = (T*)qRealloc(data, maxSize * sizeof(T));
+        } else {
+            data = (T*)qMalloc(maxSize * sizeof(T));
+        }
+    }
+    int index;
+    int maxSize;
+    T *data;
+    char fixedData[N * sizeof(T)];
+};
+
+class QDeclarativeVME
+{
+public:
+    QDeclarativeVME();
+
+    QObject *run(QDeclarativeContextData *, QDeclarativeCompiledData *, 
+                 int start = -1, int count = -1, 
+                 const QBitField & = QBitField());
+    void runDeferred(QObject *);
+
+    bool isError() const;
+    QList<QDeclarativeError> errors() const;
+
+private:
+    QObject *run(QDeclarativeVMEStack<QObject *> &, 
+                 QDeclarativeContextData *, QDeclarativeCompiledData *, 
+                 int start, int count, 
+                 const QBitField &);
+    QList<QDeclarativeError> vmeErrors;
+};
+
+QT_END_NAMESPACE
+
+#endif // QDECLARATIVEVME_P_H