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

	}
	return expr.Indices[0]
}

// index checks an index expression for validity.
// If max >= 0, it is the upper bound for index.
// If the result typ is != Typ[Invalid], index is valid and typ is its (possibly named) integer type.
// If the result val >= 0, index is valid and val is its constant int value.
func (check *Checker) index(index ast.Expr, max int64) (typ Type, val int64) {

}

// singleIndex returns the (single) index from the index expression e.
// If the index is missing, or if there are multiple indices, an error
// is reported and the result is nil.
func (check *Checker) singleIndex(e *syntax.IndexExpr) syntax.Expr {
	index := e.Index
	if index == nil {
		check.errorf(e, InvalidSyntaxTree, "missing index for %s", e.X)
		return nil
	}
	if l, _ := index.(*syntax.ListExpr); l != nil {

	if len(m.OmitStages) > 0 {
		for iNdEx := len(m.OmitStages) - 1; iNdEx >= 0; iNdEx-- {
			i -= len(m.OmitStages[iNdEx])
			copy(dAtA[i:], m.OmitStages[iNdEx])
			i = encodeVarintGenerated(dAtA, i, uint64(len(m.OmitStages[iNdEx])))
			i--
			dAtA[i] = 0x1a
		}
	}
	if len(m.Rules) > 0 {
		for iNdEx := len(m.Rules) - 1; iNdEx >= 0; iNdEx-- {
			{
				size, err := m.Rules[iNdEx].MarshalToSizedBuffer(dAtA[:i])

				return ErrInvalidLengthGenerated
			}
			if (iNdEx + skippy) > l {
				return io.ErrUnexpectedEOF
			}
			iNdEx += skippy
		}
	}

	if iNdEx > l {
		return io.ErrUnexpectedEOF
	}
	return nil
}
func (m *DeploymentCondition) Unmarshal(dAtA []byte) error {
	l := len(dAtA)
	iNdEx := 0
	for iNdEx < l {
		preIndex := iNdEx

				return err
			}
			iNdEx = postIndex
		default:
			iNdEx = preIndex
			skippy, err := skipGenerated(dAtA[iNdEx:])
			if err != nil {
				return err
			}
			if (skippy < 0) || (iNdEx+skippy) < 0 {
				return ErrInvalidLengthGenerated
			}
			if (iNdEx + skippy) > l {
				return io.ErrUnexpectedEOF
			}
			iNdEx += skippy
		}
	}

	if iNdEx > l {
		return io.ErrUnexpectedEOF

				return err
			}
			iNdEx = postIndex
		default:
			iNdEx = preIndex
			skippy, err := skipGenerated(dAtA[iNdEx:])
			if err != nil {
				return err
			}
			if (skippy < 0) || (iNdEx+skippy) < 0 {
				return ErrInvalidLengthGenerated
			}
			if (iNdEx + skippy) > l {
				return io.ErrUnexpectedEOF
			}
			iNdEx += skippy
		}
	}

	if iNdEx > l {
		return io.ErrUnexpectedEOF

			dAtA[i] = 0x12
			i -= len(keysForExtra[iNdEx])
			copy(dAtA[i:], keysForExtra[iNdEx])
			i = encodeVarintGenerated(dAtA, i, uint64(len(keysForExtra[iNdEx])))
			i--
			dAtA[i] = 0xa
			i = encodeVarintGenerated(dAtA, i, uint64(baseI-i))
			i--
			dAtA[i] = 0x32
		}
	}
	if len(m.Usages) > 0 {
		for iNdEx := len(m.Usages) - 1; iNdEx >= 0; iNdEx-- {
			i -= len(m.Usages[iNdEx])
			copy(dAtA[i:], m.Usages[iNdEx])

			iNdEx = postIndex
		default:
			iNdEx = preIndex
			skippy, err := skipGenerated(dAtA[iNdEx:])
			if err != nil {
				return err
			}
			if (skippy < 0) || (iNdEx+skippy) < 0 {
				return ErrInvalidLengthGenerated
			}
			if (iNdEx + skippy) > l {
				return io.ErrUnexpectedEOF
			}
			iNdEx += skippy
		}
	}

	if iNdEx > l {
		return io.ErrUnexpectedEOF
	}