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HTTP2 client for Elixir

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kadabra lib frame priority.ex
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lib/frame/priority.ex 

defmodule Kadabra.Frame.Priority do

  @moduledoc false

  defstruct [:stream_dependency, :weight, exclusive: false]



  alias Kadabra.Frame



  @type t :: %__MODULE__{

    exclusive: boolean,

    stream_dependency: non_neg_integer,

    weight: integer

  }



  @spec new(Frame.t) :: {:ok, t} | {:error, Frame.t}

  def new(%Frame{payload: payload} = frame) do

    case parse_payload(payload) do

      {:ok, e, dep, weight} ->

        %__MODULE__{

          exclusive: (e == 0x1),

          stream_dependency: dep,

          weight: weight

        }

      {:error, _payload} ->

        {:error, frame}

    end

  end



  defp parse_payload(<<e::1, dep::31, weight::8>>) do

    {:ok, e, dep, weight}

  end

  defp parse_payload(payload) do

    {:error, payload}

  end

end