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#ifndef QMLBINDINGOPTIMIZATIONS_P_H
#define QMLBINDINGOPTIMIZATIONS_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 "qmlexpression_p.h"
#include "qmlbinding.h"
#include "qmlbasicscript_p.h"
#include "qmlbindingvme_p.h"

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

class QmlOptimizedBindings : public QObject, public QmlAbstractExpression, public QmlRefCount
{
public:
    QmlOptimizedBindings(const char *program, QmlContext *context);
    virtual ~QmlOptimizedBindings();
    QmlAbstractBinding *configBinding(int index, QObject *target, QObject *scope, int property);

protected:
    int qt_metacall(QMetaObject::Call, int, void **);

private:
    struct Binding : public QmlAbstractBinding {
        Binding() : enabled(false), updating(0), property(0),
                    scope(0), target(0), parent(0) {}

        // Inherited from QmlAbstractBinding
        virtual void setEnabled(bool, QmlMetaProperty::WriteFlags flags);
        virtual int propertyIndex();
        virtual void update(QmlMetaProperty::WriteFlags flags);
        virtual void destroy();

        int index:30;
        bool enabled:1;
        bool updating:1;
        int property;
        QObject *scope;
        QObject *target;

        QmlOptimizedBindings *parent;
    };
    void run(Binding *);

    QmlBindingVME::Config m_config;
    const char *m_program;
    Binding *m_bindings;
    quint32 *m_signalTable;

    static int methodCount;
};

class QmlBinding_Id : public QmlAbstractExpression, 
                      public QmlAbstractBinding
{
public:
    QmlBinding_Id(QObject *object, int propertyIdx,
                  QmlContext *context, int id);
    virtual ~QmlBinding_Id();

    // Inherited from QmlAbstractBinding
    virtual void setEnabled(bool, QmlMetaProperty::WriteFlags flags);
    virtual int propertyIndex();
    virtual void update(QmlMetaProperty::WriteFlags flags);

    void reset();

private:
    void removeFromContext();

    QmlBinding_Id **m_prev;
    QmlBinding_Id  *m_next;

    QObject *m_object;
    int m_propertyIdx;
    int m_id;
};

QT_END_NAMESPACE

QT_END_HEADER

#endif // QMLBINDINGOPTIMIZATIONS_P_H