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Zig nif library

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zigler lib zig doc retriever.ex
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lib/zig/doc/retriever.ex 

defmodule Zig.Doc.Retriever do



  @moduledoc """

  decides what features should be documented on `zig doc`.



  may be in flux.

  """



  require ExDoc.FunctionNode



  alias Zig.Doc.Parser



  @odd_modules [:elixir_bootstrap]



  def docs_from_dir(source_beam, config) do



    source_dirs = if config.project == "zigler" do

      # set the directory to include zig/... instead of what

      # would normally be a source directory for a standard

      # project.

      [__DIR__

       |> Path.join("../../../priv/beam")

       |> Path.expand]

    else

      :erlang.loaded()

      |> Enum.filter(&function_exported?(&1, :__info__, 1))

      |> Enum.reject(&(&1 in @odd_modules))

      |> Enum.flat_map(&(&1.__info__(:attributes)[:zig_src_dir] || []))

      |> Enum.uniq

    end



    elixir_docs = ExDoc.Retriever.docs_from_dir(source_beam, config)

    zig_docs = Enum.flat_map(source_dirs, &Parser.docs_from_dir(&1, config))



    elixir_docs ++ zig_docs

  end

end