Function logInvoke

3rd_party/jcon-cpp/src/jcon/json_rpc_server.cpp:439–469

namespace {

QString logInvoke(const QMetaMethod& meta_method,
                  const QVariantList& args,
                  const QVariant& return_value)
{
    const auto ns = meta_method.parameterNames();
    auto ps = jcon::variantListToStringList(args);
    QStringList args_sl;
    std::transform(ns.begin(), ns.end(), ps.begin(),
                   std::back_inserter(args_sl),
                   [](auto x, auto y) -> QString {
                       return static_cast<QString>(x) + ": " + y;
                   }
        );

    auto msg = QString("%1 invoked ")
        .arg(static_cast<QString>(meta_method.name()));

    if (args_sl.empty()) {
        msg += "without arguments";
    } else {
        msg += QString("with argument%1: %2")
            .arg(args_sl.size() == 1 ? "" : "s")
            .arg(args_sl.join(", "));
    }

    if (return_value.isValid()) {
        msg += " -> returning: " + jcon::variantToString(return_value);
    }

    return msg;
}

}