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// Copyright (C) 2022 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 QQMLTRANSLATION_P_H
#define QQMLTRANSLATION_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 <private/qtqmlglobal_p.h>
#include <QtCore/qstring.h>
#include <QtCore/qcoreapplication.h>
QT_BEGIN_NAMESPACE
class QQmlTranslation
{
public:
class QsTrData
{
QByteArray m_context;
QByteArray m_text;
QByteArray m_comment;
int m_number = 0;
public:
QsTrData(const QString &fileNameForContext, const QString &text, const QString &comment,
int number)
: m_context(fileNameForContext.toUtf8())
, m_text(text.toUtf8())
, m_comment(comment.toUtf8())
, m_number(number)
{
}
QString translate() const
{
#if QT_CONFIG(translation)
return QCoreApplication::translate(m_context.constData(), m_text.constData(), m_comment.constData(), m_number);
#else
return QString();
#endif
}
QByteArray context() const { return m_context; }
QByteArray text() const { return m_text; }
QByteArray comment() const { return m_comment; }
int number() const { return m_number; }
};
class QsTrIdData
{
QByteArray m_id;
int m_number = 0;
public:
QsTrIdData(const QString &id, int number)
: m_id(id.toUtf8()), m_number(number)
{
}
QString translate() const
{
#if QT_CONFIG(translation)
return qtTrId(m_id.constData(), m_number);
#else
return QString();
#endif
}
QByteArray id() const { return m_id; }
int number() const { return m_number; }
};
// The static analyzer hates std::monostate in std::variant because
// that results in various uninitialized memory "problems". Just use
// std::nullptr_t to indicate "empty".
using Data = std::variant<std::nullptr_t, QsTrData, QsTrIdData>;
QQmlTranslation(const Data &d) : m_data(d) {}
QQmlTranslation() : m_data(nullptr) {}
template<typename F>
auto visit(F &&f) const { return std::visit(std::forward<F>(f), m_data); }
QString translate() const
{
return visit(
[](auto &&arg) -> QString {
using T = std::decay_t<decltype(arg)>;
if constexpr (!std::is_same_v<T, std::nullptr_t>)
return arg.translate();
else {
Q_ASSERT_X(false, "QQmlTranslation", "Uninitialized Translation");
return {};
}
});
}
static QString contextFromQmlFilename(const QString &qmlFilename)
{
int lastSlash = qmlFilename.lastIndexOf(QLatin1Char('/'));
QStringView contextView = (lastSlash > -1)
? QStringView{ qmlFilename }.mid(lastSlash + 1, qmlFilename.size() - lastSlash - 5)
: QStringView();
return contextView.toString();
}
private:
Data m_data;
};
QT_END_NAMESPACE
#endif // QQMLTRANSLATION_P_H
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