boolean (@Nullable PsiElement element, @Nullable PsiElement referenceOrReferencedElement) { if (referenceOrReferencedElement == null || !referenceOrReferencedElement.isValid()) return false; TargetElementEvaluatorEx2 evaluator = element == null ? null : getElementEvaluatorsEx2(element.getLanguage()); if (evaluator != null) { ThreeState answer = evaluator.isAcceptableReferencedElement(element, referenceOrReferencedElement); if (answer == ThreeState.YES) return true; if (answer == ThreeState.NO) return false; } return true; }