case PatternCompilerTreeConstants.JJTOPT_PRESCREEN:
case JJTPRESCREEN:
	private void visit(SimpleNode node) {		switch (node.getId()) {		case PatternCompilerTreeConstants.JJTOPT_PRESCREEN:			generatePrescreen(node);			break;		default:			for (int i = 0; i < node.jjtGetNumChildren(); ++i)				visit((SimpleNode) node.jjtGetChild(i));			break;		}	}