when {
            immediateMode -> {
                codec.run { decode() }
            }

            decodeCall == null -> {
                decodeCall = DecodeFrame(null)
                decodeLoop(coroutineContext)
            }

            else -> suspendCoroutine { k ->
                decodeCall = DecodeFrame(k)
            }
        }

    private

            buffer.mark();
        }

        static void reset(Buffer buffer) {
            buffer.reset();
        }

        @Override
        protected CoderResult decodeLoop(ByteBuffer in, CharBuffer out) {
            mark(in);
            mark(out);

            CoderResult coderResult = decoder.decode(in, out, false);

            if (coderResult.isError() && utf8) {

	func(b *buffer, m message) error { return decodeBool(b, &m.(*Mapping).HasFunctions) },    // optional bool has_functions = 7
	func(b *buffer, m message) error { return decodeBool(b, &m.(*Mapping).HasFilenames) },    // optional bool has_filenames = 8
	func(b *buffer, m message) error { return decodeBool(b, &m.(*Mapping).HasLineNumbers) },  // optional bool has_line_numbers = 9