qprotobufdeserializerbase_p.h

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// Copyright (C) 2024 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

#ifndef QPROTOBUFDESERIALIZERBASE_P_H

#define QPROTOBUFDESERIALIZERBASE_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 <QtProtobuf/qabstractprotobufserializer.h>

#include <QtProtobuf/qprotobufpropertyordering.h>

#include <QtProtobuf/qprotobufrepeatediterator.h>

#include <QtCore/qtconfigmacros.h>

#include <QtCore/qvarlengtharray.h>

QT_BEGIN_NAMESPACE

class QVariant;

class QProtobufMessage;

class QProtobufDeserializerBase

public:

    explicit QProtobufDeserializerBase(bool enforceRequiredFields);

    bool deserializeMessage(QProtobufMessage *message);

    void clearCachedValue();

protected:

    ~QProtobufDeserializerBase();

    virtual void setError(QAbstractProtobufSerializer::Error error, QAnyStringView errorString) = 0;

    virtual bool hasError() const = 0;

    virtual bool deserializeMessageField(QProtobufMessage *message);

private:

    virtual bool deserializeEnum(QVariant &value,

                                 const QtProtobufPrivate::QProtobufFieldInfo &fieldInfo) = 0;

    virtual int nextFieldIndex(QProtobufMessage *message) = 0;

    virtual bool deserializeScalarField(QVariant &value,

                                        const QtProtobufPrivate::QProtobufFieldInfo &fieldInfo) = 0;

    bool storeCachedValue(QProtobufMessage *message);

    bool checkRequiredFields(const QtProtobufPrivate::QProtobufPropertyOrdering *ordering,

                             const QVarLengthArray<quint64, 1> &seenFields);

    QVariant m_cachedPropertyValue;

    QProtobufRepeatedIterator m_cachedRepeatedIterator;

    int m_cachedIndex = -1;

    const bool m_enforceRequiredFields;

    Q_DISABLE_COPY_MOVE(QProtobufDeserializerBase)

public:

    static constexpr QtProtobufPrivate::FieldFlags RepeatedMessageFlags{

        QtProtobufPrivate::FieldFlag::Message, QtProtobufPrivate::FieldFlag::Repeated

};

};

QT_END_NAMESPACE

#endif // QPROTOBUFDESERIALIZERBASE_P_H