Function reuseRouteBucket

router.go:886–891

(prev map[int][]*Route, key, capHint int)

}

func reuseRouteBucket(prev map[int][]*Route, key, capHint int) []*Route {
	if bucket, ok := prev[key]; ok && cap(bucket) >= capHint {
		return bucket[:0]
	}
	return make([]*Route, 0, capHint)
}