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Low-level elixir library to read, write, hash, and sign XDR primitive constructs used in the Stellar network.

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stellar_base lib xdr base opaque4.ex
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lib/xdr/base/opaque4.ex 

defmodule StellarBase.XDR.Opaque4 do

  @moduledoc """

  Representation of Stellar `Opaque4` type.

  """

  @behaviour XDR.Declaration



  @type t :: %__MODULE__{opaque: binary()}



  defstruct [:opaque]



  @length 4

  @opaque_spec XDR.FixedOpaque.new(nil, @length)



  @spec new(opaque :: binary()) :: t()

  def new(opaque), do: %__MODULE__{opaque: opaque}



  @impl true

  def encode_xdr(%__MODULE__{opaque: opaque}) do

    XDR.FixedOpaque.encode_xdr(%XDR.FixedOpaque{opaque: opaque, length: @length})

  end



  @impl true

  def encode_xdr!(%__MODULE__{opaque: opaque}) do

    XDR.FixedOpaque.encode_xdr!(%XDR.FixedOpaque{opaque: opaque, length: @length})

  end



  @impl true

  def decode_xdr(bytes, spec \\ @opaque_spec)



  def decode_xdr(bytes, spec) do

    case XDR.FixedOpaque.decode_xdr(bytes, spec) do

      {:ok, {%XDR.FixedOpaque{opaque: opaque}, rest}} -> {:ok, {new(opaque), rest}}

      error -> error

    end

  end



  @impl true

  def decode_xdr!(bytes, spec \\ @opaque_spec)



  def decode_xdr!(bytes, spec) do

    {%XDR.FixedOpaque{opaque: opaque}, rest} = XDR.FixedOpaque.decode_xdr!(bytes, spec)

    {new(opaque), rest}

  end

end