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A pure Elixir implementation of Google Protobuf.

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protobuf lib application.ex
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lib/application.ex 

defmodule Protobuf.Application do

  use Application



  @moduledoc """

  When extensions feature is enabled, all modules are scanned to fetch

  runtime information for extensions, see `Protobuf.Extension` for details.



  No children are created now.

  """



  @doc false

  def start(_type, _args) do

    if Application.get_env(:protobuf, :extensions, :disabled) == :enabled do

      mods = get_all_modules()

      Protobuf.Extension.cal_extensions(mods)

    else

      # Extensions in Protobuf should always be calculated for generating code

      {:ok, mods} = :application.get_key(:protobuf, :modules)

      Protobuf.Extension.cal_extensions(mods)

    end



    children = []

    Supervisor.start_link(children, strategy: :one_for_one)

  end



  defp get_all_modules() do

    case :code.get_mode() do

      :embedded ->

        :erlang.loaded()



      :interactive ->

        for {app, _, _} <- Application.loaded_applications() do

          {:ok, modules} = :application.get_key(app, :modules)

          modules

        end

        |> Enum.concat()

    end

  end

end