defmodule Ejabberd.Module do defmacro __using__(opts) do logger_enabled = Keyword.get(opts, :logger, true) quote do @behaviour :gen_mod import Ejabberd.Module unquote(if logger_enabled do quote do: import Ejabberd.Logger end) end end # gen_mod callbacks def depends(_host, _opts), do: [] def mod_opt_type(_), do: [] end