PsiExpressionList () { PsiCaseLabelElementList elementList = getCaseLabelElementList(); if (elementList == null) return null; PsiExpression[] expressions = PsiTreeUtil.getChildrenOfType(elementList, PsiExpression.class); expressions = expressions != null ? expressions : PsiExpression.EMPTY_ARRAY; return new LightExpressionList(getManager(), getLanguage(), expressions, elementList, elementList.getTextRange()); }