Method require

msgp/write.go:197–208

NOTE: this should only be called with a number that is guaranteed to be less than len(mw.buf). typically, it is called with a constant. NOTE: this is a hot code path

(n int)

//
// NOTE: this is a hot code path
func (mw *Writer) require(n int) (int, error) {
	c := len(mw.buf)
	wl := mw.wloc
	if c-wl < n {
		if err := mw.flush(); err != nil {
			return 0, err
		}
		wl = mw.wloc
	}
	mw.wloc += n
	return wl, nil
}

func (mw *Writer) Append(b ...byte) error {
	if mw.avail() < len(b) {