Method checkOptionValid

lib/config/config.cc:384–423

}

void Config::checkOptionValid(const OptionProto& option)
{
    for (const auto& req : option.prerequisite())
    {
        bool matched = false;
        try
        {
            auto value = get(req.key());
            for (auto requiredValue : req.value())
                matched |= (requiredValue == value);
        }
        catch (const ProtoPathNotFoundException e)
        {
            /* This field isn't available, therefore it
             * cannot match. */
        }

        if (!matched)
        {
            std::stringstream ss;
            ss << '[';
            bool first = true;
            for (auto requiredValue : req.value())
            {
                if (!first)
                    ss << ", ";
                ss << quote(requiredValue);
                first = false;
            }
            ss << ']';

            throw InapplicableOptionException(
                fmt::format("option '{}' is inapplicable to this configuration "
                            "because {}={} could not be met",
                    option.name(),
                    req.key(),
                    ss.str()));
        }
    }
}

bool Config::isOptionValid(const OptionProto& option)
{