Method UnreadByte

fflib/v1/reader.go:124–130

()

}

func (r *ffReader) UnreadByte() error {
	if r.i <= 0 {
		panic("ffReader.UnreadByte: at beginning of slice")
	}
	r.i--
	return nil
}

func (r *ffReader) readU4(j int) (rune, error) {