} else if (node instanceof AstInteger) {
// sb.append("new Integer(");
sb.append(node.getImage());
// sb.append(")");
} else if (node instanceof AstString) {
AstString stringNode = (AstString) node;
sb.append("\"");
sb.append(stringNode.getString());
sb.append("\"");
} else {
sb.append("\"");
sb.append(node.getImage());
sb.append("\"");