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#ifndef QMLBINDINGVME_P_H
#define QMLBINDINGVME_P_H

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//

#include <QtCore/qglobal.h>
#include <private/qmlbasicscript_p.h>
#include <private/qscriptdeclarativeclass_p.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

class QObject;
class QmlContextPrivate;
class QmlBindingVME 
{
public:
    struct Config {
        Config() : target(0), targetSlot(-1), subscriptions(0), identifiers(0) {}
        ~Config() { delete [] subscriptions; delete [] identifiers; }
        QObject *target;
        int targetSlot;

        struct Subscription {
            QGuard<QObject> source;
            int notifyIndex;
        };
        Subscription *subscriptions;
        QScriptDeclarativeClass::PersistentIdentifier *identifiers;
    };

    static void init(const char *program, Config *config, 
                     quint32 **sigTable, quint32 *bindingCount);
    static void run(const char *program, int instr,
                    Config *config, QmlContextPrivate *context, 
                    QObject **scopes, QObject **outputs);
    static void dump(const QByteArray &);
};

class QmlBindingCompilerPrivate;
class QmlBindingCompiler
{
public:
    QmlBindingCompiler();
    ~QmlBindingCompiler();

    // Returns true if bindings were compiled
    bool isValid() const;

    // -1 on failure, otherwise the binding index to use
    int compile(const QmlBasicScript::Expression &, QmlEnginePrivate *);

    // Returns the compiled program
    QByteArray program() const;

private:
    QmlBindingCompilerPrivate *d;
};

QT_END_NAMESPACE

QT_END_HEADER

#endif // QMLBINDINGVME_P_H