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ex_m3u8

0.14.2
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A package for handling M3U8 playlist files

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ex_m3u8 lib ex_m3u8 deserializer attributes_deserializer.ex
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lib/ex_m3u8/deserializer/attributes_deserializer.ex 

defmodule ExM3U8.Deserializer.AttributesDeserializer do

  @moduledoc false



  @callback deserialize(map()) :: {:ok, struct()} | {:error, term()}



  @spec deserialize_struct_fields(module(), function(), map()) ::

          {:ok, struct()} | {:error, term()}

  def deserialize_struct_fields(module, load_fun, attrs) do

    module.__struct__

    |> Map.delete(:__struct__)

    |> Map.keys()

    |> Enum.reduce_while([], fn field, loaded ->

      case load_fun.(field, attrs) do

        {:ok, value} -> {:cont, [{field, value} | loaded]}

        {:error, _reason} = error -> {:halt, error}

      end

    end)

    |> case do

      {:error, _reason} = error ->

        error



      values ->

        {:ok, struct!(module, values)}

    end

  end

end