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BinStruct is a library which provides you rich set of tools for parsing/encoding binaries

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bin_struct lib bin_struct macro preprocess remap_callback.ex
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lib/bin_struct/macro/preprocess/remap_callback.ex 

defmodule BinStruct.Macro.Preprocess.RemapCallback do



  @moduledoc false



  alias BinStruct.Macro.FunctionName



  def remap_callback(nil = _raw_callback, _env), do: nil



  def remap_callback(raw_callback, env) do



    case FunctionName.function_name(raw_callback, env) do



      function_name when function_name != :unknown ->



        arity = BinStruct.Macro.FunctionArity.function_arity(raw_callback, env)

       

        %BinStruct.Macro.Structs.Callback{

          function: raw_callback,

          function_name: function_name,

          function_arity: arity

        }



      :unknown -> raise "not a function reference (&), given: #{inspect(raw_callback)}"



    end



  end



end