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pbuf

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A fast protocol buffer library

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pbuf lib pbuf.ex
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lib/pbuf.ex 

defmodule Pbuf do

  @spec encode!(struct) :: binary

  @compile {:inline, oneof_to_map: 1}



  def encode!(struct) do

    struct.__struct__.encode!(struct)

  end



  @spec encode_to_iodata!(struct) :: iodata

  def encode_to_iodata!(struct) do

    struct.__struct__.encode_to_iodata!(struct)

  end



  defdelegate decode(module, iodata), to: Pbuf.Decoder

  defdelegate decode!(module, iodata), to: Pbuf.Decoder



  def oneof_to_map({type, value}) do

    %{type => value}

  end



  def glue_length(_tag, nil) do

    []

  end



  def glue_length(tag, value) do

    use Bitwise, only_operators: true



    size = value

    |> byte_size()

    |> Pbuf.Encoder.varint()



    [Pbuf.Encoder.varint(tag <<< 3 ||| 2), size, value]

  end

end