#ifndef INTROSPECTION_H

#define INTROSPECTION_H

// define TREEINTROSPECTION to let objects have a pointer to their parents

#define TREEINTROSPECTION

#include <QtCore/QVariant>

#include <QtCore/QVector>

#include <stdint.h>

class Introspectable;

Q_DECLARE_METATYPE(QVector<quint16>);

Q_DECLARE_METATYPE(QVector<quint32>);

class Introspection {

public:

    const QString name;

    const int numberOfMembers;

    const QString* const names;

    int (* const * const numberOfInstances)(const Introspectable*);

    QVariant (* const * const value)(const Introspectable*, int position);

    const Introspectable* (* const * const introspectable)(const Introspectable*, int position);

    Introspection(const QString& n,

            const int nOM,

            const QString* const ns,

            int (* const * const mC)(const Introspectable*),

            QVariant (* const * const vG)(const Introspectable*, int),

            const Introspectable* (* const * const i)(const Introspectable*, int))

        :name(n), numberOfMembers(nOM), names(ns),

         numberOfInstances(mC), value(vG), introspectable(i) {}

    // convenience

    static int zero(const Introspectable*) { return 0; }

    static int one(const Introspectable*) { return 1; }

    static const Introspectable* null(const Introspectable*, int) { return NULL; } 

    static QVariant nullValue(const Introspectable*, int) { return QVariant(); }

};

class Introspectable {

public:

    uint32_t streamOffset;

#ifdef TREEINTROSPECTION

    Introspectable const * parent; // one more 'const' would be nice ...

    Introspectable(const Introspectable* p)

            :streamOffset(999999), parent(p) {}

#else

    Introspectable(const Introspectable* = 0)

            :streamOffset(999999) {

    }

#endif

    virtual ~Introspectable() {}

    virtual const Introspection* getIntrospection() const = 0;

};

#endif