Socket::HostnameResolutionStore#get_addrinfo

# File tmp/rubies/ruby-3.4.1/ext/socket/lib/socket.rb, line 1040
def get_addrinfo
  precedences =
    case @last_family
    when :ipv4, nil then PRIORITY_ON_V6
    when :ipv6      then PRIORITY_ON_V4
    end

  precedences.each do |family_name|
    addrinfo = @addrinfo_dict[family_name]&.shift
    next unless addrinfo

    @last_family = family_name
    return addrinfo
  end

  nil
end