qv4variantobject_p.h

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// Copyright (C) 2016 The Qt Company Ltd.

// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only

// Qt-Security score:significant

#ifndef QV4VARIANTOBJECT_P_H

#define QV4VARIANTOBJECT_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 <QtQml/qqmllist.h>

#include <QtCore/qvariant.h>

#include <private/qv4value_p.h>

#include <private/qv4object_p.h>

QT_BEGIN_NAMESPACE

namespace QV4 {

namespace Heap {

struct VariantObject : Object

    void init();

    void init(const QMetaType type, const void *data);

    void destroy() {

        Q_ASSERT(scarceData);

        if (isScarce())

            addVmePropertyReference();

        delete scarceData;

        Object::destroy();

    bool isScarce() const;

    int vmePropertyReferenceCount;

    const QVariant &data() const { return scarceData->data; }

    QVariant &data() { return scarceData->data; }

    void addVmePropertyReference() { scarceData->node.remove(); }

    void removeVmePropertyReference() { internalClass->engine->scarceResources.insert(scarceData); }

private:

    ExecutionEngine::ScarceResourceData *scarceData;

};

struct Q_QML_EXPORT VariantObject : Object

    V4_OBJECT2(VariantObject, Object)

    V4_PROTOTYPE(variantPrototype)

    V4_NEEDS_DESTROY

    void addVmePropertyReference() const;

    void removeVmePropertyReference() const;

protected:

    static bool virtualIsEqualTo(Managed *m, Managed *other);

};

struct VariantPrototype : VariantObject

public:

    V4_PROTOTYPE(objectPrototype)

    void init();

    static ReturnedValue method_preserve(const FunctionObject *f, const Value *thisObject, const Value *argv, int argc);

    static ReturnedValue method_destroy(const FunctionObject *, const Value *thisObject, const Value *argv, int argc);

    static ReturnedValue method_toString(const FunctionObject *, const Value *thisObject, const Value *argv, int argc);

    static ReturnedValue method_valueOf(const FunctionObject *, const Value *thisObject, const Value *argv, int argc);

};

QT_END_NAMESPACE

#endif