qanystringview.cpp

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// Copyright (C) 2020 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Marc Mutz <marc.mutz@kdab.com>
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GFDL-1.3-no-invariants-only
 
#include "qanystringview.h"
#include "qdebug.h"
#include "qttypetraits.h"
 
QT_BEGIN_NAMESPACE
 
QDebug operator<<(QDebug d, QAnyStringView s)
{
    struct S { const char *prefix, *suffix; };
    const auto affixes = s.visit([](auto s) {
            using View = decltype(s);
            if constexpr (std::is_same_v<View, QLatin1StringView>) {
                return S{"", "_L1"};
            } else if constexpr (std::is_same_v<View, QUtf8StringView>) {
                return S{"u8", ""};
            } else if constexpr (std::is_same_v<View, QStringView>) {
                return S{"u", ""};
            } else {
                static_assert(QtPrivate::type_dependent_false<View>());
            }
        });
    const QDebugStateSaver saver(d);
    d.nospace();
    if (d.quoteStrings())
        d << affixes.prefix;
    s.visit([&d](auto s) { d << s; });
    if (d.quoteStrings())
        d << affixes.suffix;
    return d;
}
 
 
QT_END_NAMESPACE