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Code duplication detector powered by Elixir AST analysis

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ex_dna lib ex_dna ast pipe.ex
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lib/ex_dna/ast/pipe.ex 

defmodule ExDNA.AST.Pipe do

  @moduledoc false



  @spec inject_first_arg(Macro.t(), Macro.t()) :: Macro.t()

  def inject_first_arg({call, meta, args}, first_arg) when is_list(args) do

    {call, meta, [first_arg | args]}

  end



  def inject_first_arg({call, meta, nil}, first_arg) do

    {call, meta, [first_arg]}

  end



  def inject_first_arg(other, first_arg) do

    {other, [], [first_arg]}

  end

end