end
  defp section_body(:export, binary) do
    vec(&export/1).(binary)
  end
  defp export(binary) do
    {name, rest} = name(binary)
    {export_desc, rest} = exportdesc(rest)
    {{name, export_desc}, rest}
  end
  defp name(binary) do
    {nm, rest} = vec(&byte/1).(binary)
    {List.to_string(nm), rest}
  end
  defp byte(<<b, rest::binary>>) do
    {b, rest}
  end
  defp exportdesc(<<0x00, rest::binary>>) do
    {fun, rest} = funcidx(rest)
    {{:func, fun}, rest}
  end
  defp exportdesc(<<0x02, rest::binary>>) do
    {mem, rest} = memidx(rest)
    {{:mem, mem}, rest}
  end
  defp exportdesc(<<0x03, rest::binary>>) do
    {glob, rest} = globalidx(rest)
    {{:global, glob}, rest}

  defp memidx(binary) do
    Atomic.u32(binary)
  end
  defp globalidx(binary) do
    Atomic.u32(binary)
  end
  defp funcidx(binary) do
    Atomic.u32(binary)
  end