Batch delegate functions to a module?

Questions & Help Questions
4

necrobump time. here’s my ready made script that supports different arities and a custom list of modules to combine into one.

defmodule MyApp.FullHouse do
  use MyApp.FullHouse.Populate,
    context_modules: [
      MyApp.ModuleA,
      MyApp.ModuleB,
      MyApp.ModuleC,
      MyApp.ModuleD
    ]
end

defmodule MyApp.FullHouse.Populate do
  require Logger

  defmacro __using__(opts) do
    modules =
      for {_, _, module_path} <- opts[:context_modules] do
        ("Elixir." <> Enum.join(module_path, "."))
        |> String.to_atom()
      end

    for module <- modules, {fun, arity} <- apply(module, :__info__, [:functions]) do
      quote do
        defdelegate unquote(fun)(unquote_splicing(Macro.generate_arguments(arity, module))),
          to: unquote(module)
      end
    end
    |> tap(fn x -> Logger.info("Service Layer has #{length(x)} functions.") end)
  end
end

Dunno if this is efficient or not, I’m just using this for prototyping to think my way to a better process. Pretty bad code smell if this ends up in production.