metrics.Metrics.ObserveCompilation(time.Since(t))
	}()

	if len(s.XValidations) == 0 {
		return nil, nil
	}
	celRules := s.XValidations

	oldSelfEnvSet, optionalOldSelfEnvSet, err := prepareEnvSet(baseEnvSet, declType)
	if err != nil {
		return nil, err
	}
	estimator := newCostEstimator(declType)