@Override
    public String toString() {
        String returnString = "RETURN";
        if (functionName != null) {
            int indexOfLessThan = functionName.indexOf("<");
            String truncatedFunctionName = functionName;
            if (indexOfLessThan != -1) {
                truncatedFunctionName = functionName.substring(0,
                                                               indexOfLessThan);
            }
            returnString += " " + functionName + "    exit "
                            + truncatedFunctionName + ": "
                            + new Integer(storedValueForPrinting).toString();
        }
        return returnString;
    }