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#ifndef QV4OBJECTITERATOR_H
#define QV4OBJECTITERATOR_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 "qv4global_p.h"
#include "qv4object_p.h"

QT_BEGIN_NAMESPACE

namespace QV4 {

struct Q_QML_EXPORT ObjectIterator
{
    enum Flags {
        NoFlags = 0,
        EnumerableOnly = 0x1,
        WithProtoChain = 0x2,
    };

    ExecutionEngine *engine;
    Value *object;
    Value *current;
    SparseArrayNode *arrayNode;
    uint arrayIndex;
    uint memberIndex;
    uint flags;

    ObjectIterator(ExecutionEngine *e, Value *scratch1, Value *scratch2, Object *o, uint flags);
    ObjectIterator(Scope &scope, const Object *o, uint flags);
    void init(const Object *o);
    void next(Value *name, uint *index, Property *pd, PropertyAttributes *attributes = 0);
    ReturnedValue nextPropertyName(Value *value);
    ReturnedValue nextPropertyNameAsString(Value *value);
    ReturnedValue nextPropertyNameAsString();
};

namespace Heap {
struct ForEachIteratorObject : Object {
    ForEachIteratorObject(QV4::Object *o);
    ObjectIterator it;
    Value workArea[2];
};

}

struct ForEachIteratorObject: Object {
    V4_OBJECT2(ForEachIteratorObject, Object)
    Q_MANAGED_TYPE(ForeachIteratorObject)

    ReturnedValue nextPropertyName() { return d()->it.nextPropertyNameAsString(); }

protected:
    static void markObjects(Heap::Base *that, ExecutionEngine *e);
};

inline
Heap::ForEachIteratorObject::ForEachIteratorObject(QV4::Object *o)
    : it(internalClass->engine, workArea, workArea + 1, o, ObjectIterator::EnumerableOnly|ObjectIterator::WithProtoChain)
{
}


}

QT_END_NAMESPACE

#endif
