Method write

compress.go:217–234

(p []byte)

}

func (sw *slidingWindow) write(p []byte) {
	if len(p) >= cap(sw.buf) {
		sw.buf = sw.buf[:cap(sw.buf)]
		p = p[len(p)-cap(sw.buf):]
		copy(sw.buf, p)
		return
	}

	left := cap(sw.buf) - len(sw.buf)
	if left < len(p) {
		// We need to shift spaceNeeded bytes from the end to make room for p at the end.
		spaceNeeded := len(p) - left
		copy(sw.buf, sw.buf[spaceNeeded:])
		sw.buf = sw.buf[:len(sw.buf)-spaceNeeded]
	}

	sw.buf = append(sw.buf, p...)
}