introspectable.cpp

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/**********************************************************************
 * LeechCraft - modular cross-platform feature rich internet client.
 * Copyright (C) 2006-2014  Georg Rudoy
 *
 * Distributed under the Boost Software License, Version 1.0.
 * (See accompanying file LICENSE or copy at https://www.boost.org/LICENSE_1_0.txt)
 **********************************************************************/
 
#include "introspectable.h"
#include <string>
#include <QtDebug>
 
namespace LC::Util
{
    Introspectable& Introspectable::Instance ()
    {
        static Introspectable inst;
        return inst;
    }
 
    QVariantMap Introspectable::operator() (const QVariant& variant) const
    {
        if (!variant.isValid ())
            throw std::runtime_error { "Invalid variant." };
 
        const auto type = variant.userType ();
 
        if (type < static_cast<int> (QMetaType::Type::User))
            return { { "data", variant } };
 
        if (Intros_.contains (type))
            return Intros_ [type] (variant);
 
        qWarning () << Q_FUNC_INFO
                << "unregistered type"
                << type
                << variant;
        throw std::runtime_error { "Unregistered type: " + std::to_string (type) };
    }
}