import (
	"sync"

	"istio.io/istio/pkg/ptr"
	"istio.io/istio/pkg/util/sets"
)

// Index maintains a simple index over an informer
type Index[I any, K comparable] struct {
	mu      sync.RWMutex
	objects map[K]sets.Set[Key[I]]
	c       Collection[I]
	extract func(o I) []K
}

// Lookup finds all objects matching a given key
func (i *Index[I, K]) Lookup(k K) []I {
	i.mu.RLock()
	defer i.mu.RUnlock()
	var res []I

				})

				indexes[index.Name] = idx
			}
		}
	}
	for _, index := range indexes {
		if index.Class == "UNIQUE" && len(index.Fields) == 1 {
			index.Fields[0].Field.UniqueIndex = index.Name
		}
	}
	return indexes
}

func (schema *Schema) LookIndex(name string) *Index {
	if schema != nil {
		indexes := schema.ParseIndexes()
		for _, index := range indexes {
			if index.Name == name {
				return &index

	Name7        string `gorm:"index:type"`
	Name8        string `gorm:"index:,length:10;index:,collate:utf8"`

	// Composite Index: Flattened structure.
	Data0A string `gorm:"index:,composite:comp_id0"`
	Data0B string `gorm:"index:,composite:comp_id0"`

	// Composite Index: Nested structure.
	Data1A string `gorm:"index:,composite:comp_id1"`
	CompIdxLevel1C

	// Composite Index: Unique and priority.

package route

// An InterfaceMessage represents an interface message.
type InterfaceMessage struct {
	Version int    // message version
	Type    int    // message type
	Flags   int    // interface flags
	Index   int    // interface index
	Name    string // interface name
	Addrs   []Addr // addresses

	extOff int    // offset of header extension
	raw    []byte // raw message
}

// For positions with different bases, ordering is by base index.
func (p XPos) Before(q XPos) bool {
	n, m := p.index, q.index
	return n < m || n == m && p.lico < q.lico
}

// SameFile reports whether p and q are positions in the same file.
func (p XPos) SameFile(q XPos) bool {
	return p.index == q.index
}

// SameFileAndLine reports whether p and q are positions on the same line in the same file.

}

// lookupAll returns a slice into the matching region of the index.
// The runtime is O(log(N)*len(s)).
func (x *Index) lookupAll(s []byte) ints {
	// find matching suffix index range [i:j]
	// find the first index where s would be the prefix
	i := sort.Search(x.sa.len(), func(i int) bool { return bytes.Compare(x.at(i), s) >= 0 })
	// starting at i, find the first index at which s is not a prefix

	pq[i], pq[j] = pq[j], pq[i]
	pq[i].index = i
	pq[j].index = j
}

func (pq *PriorityQueue) Push(x any) {
	n := len(*pq)
	item := x.(*Item)
	item.index = n
	*pq = append(*pq, item)
}

func (pq *PriorityQueue) Pop() any {
	old := *pq
	n := len(old)
	item := old[n-1]
	old[n-1] = nil  // don't stop the GC from reclaiming the item eventually
	item.index = -1 // for safety
	*pq = old[0 : n-1]
	return item

	// Required parameters: route rule, route rule index, route index.
	DestinationHost = "{.spec.%s[%d].route[%d].destination.host}"

	// Path for mirror host in VirtualService.
	// Required parameters: http index.
	MirrorHost = "{.spec.http[%d].mirror.host}"

	// Path for mirrors host in VirtualService.
	// Required parameters: http index, mirror index.
	MirrorsHost = "{.spec.http[%d].mirrors[%d].host}"

	for _, ifi := range ift {
		zc.toIndex[ifi.Name] = ifi.Index
		if _, ok := zc.toName[ifi.Index]; !ok {
			zc.toName[ifi.Index] = ifi.Name
		}
	}
	return true
}

func (zc *ipv6ZoneCache) name(index int) string {
	if index == 0 {
		return ""
	}
	updated := zoneCache.update(nil, false)
	zoneCache.RLock()
	name, ok := zoneCache.toName[index]
	zoneCache.RUnlock()
	if !ok && !updated {

			const prefix = "= obj.ABase"
			index := strings.Index(line, prefix)
			if index < 0 {
				continue
			}
			// It's on. Start with the header.
			fmt.Fprintf(out, header, *input, *output, *pkg, *pkg)
			on = true
			line = line[:index]
		}
		// Strip comments so their text won't defeat our heuristic.
		index := strings.Index(line, "//")
		if index > 0 {
			line = line[:index]
		}
		index = strings.Index(line, "/*")