PsiReferenceExpression (@Nullable IElementType tokenType, @Nullable PsiExpression operand) { final PsiExpression bareOperand = PsiUtil.skipParenthesizedExprDown(operand); if (bareOperand instanceof PsiReferenceExpression && (JavaTokenType.PLUSPLUS.equals(tokenType) || JavaTokenType.MINUSMINUS.equals(tokenType))) { return (PsiReferenceExpression)bareOperand; } return null; }