}

// HuffmanDecode decodes the string in v and writes the expanded
// result to w, returning the number of bytes written to w and the
// Write call's return value. At most one Write call is made.
func HuffmanDecode(w io.Writer, v []byte) (int, error) {
	buf := bufPool.Get().(*bytes.Buffer)
	buf.Reset()
	defer bufPool.Put(buf)
	if err := huffmanDecode(buf, 0, v); err != nil {
		return 0, err
	}

      @Throws(IOException::class)
      fun readByteString(): ByteString {
        val firstByte = readByte()
        val huffmanDecode = firstByte and 0x80 == 0x80 // 1NNNNNNN
        val length = readInt(firstByte, PREFIX_7_BITS).toLong()

        return if (huffmanDecode) {
          val decodeBuffer = Buffer()
          Huffman.decode(source, length, decodeBuffer)
          decodeBuffer.readByteString()

func (d *Decoder) decodeString(u undecodedString) (string, error) {
	if !u.isHuff {
		return string(u.b), nil
	}
	buf := bufPool.Get().(*bytes.Buffer)
	buf.Reset() // don't trust others
	var s string
	err := huffmanDecode(buf, d.maxStrLen, u.b)
	if err == nil {
		s = buf.String()
	}
	buf.Reset() // be nice to GC
	bufPool.Put(buf)
	return s, err