type CompilationResult struct {
	Program cel.Program
	Error   *apiservercel.Error
	// If true, the compiled expression contains a reference to the identifier "oldSelf".
	UsesOldSelf bool
	// Represents the worst-case cost of the compiled expression in terms of CEL's cost units, as used by cel.EstimateCost.
	MaxCost uint64

		activationFactory := validationActivationWithoutOldSelf
		for _, rule := range compiledRules {
			if rule.UsesOldSelf {
				activationFactory = validationActivationWithOldSelf
				break
			}
		}

		return &Validator{
			compiledRules:        compiledRules,
			uncompiledRules:      validationSchema.XValidations,

}

type transitionRuleMatcher bool

func transitionRule(t bool) validationMatcher {
	return transitionRuleMatcher(t)
}

func (v transitionRuleMatcher) matches(cr CompilationResult) bool {
	return cr.UsesOldSelf == bool(v)
}

func (v transitionRuleMatcher) String() string {
	if v {
		return "is a transition rule"
	}
	return "is not a transition rule"
}

func TestCelCompilation(t *testing.T) {

									celContext.TotalCost.ObserveExpressionCost(fldPath.Child("x-kubernetes-validations").Index(i).Child("messageExpression"), cr.MessageExpressionMaxCost)
								}
							}
						}
						if cr.UsesOldSelf {
							if uncorrelatablePath := ssv.forbidOldSelfValidations(); uncorrelatablePath != nil {