xfunction.java

一个在无线传感器网络的编译器

// $Id: Xfunction.java,v 1.4 2005/01/27 21:33:55 idgay Exp $
/*									tab:4
 * Copyright (c) 2004-2005 Intel Corporation
 * All rights reserved.
 *
 * This file is distributed under the terms in the attached INTEL-LICENSE     
 * file. If you do not find these files, copies can be found by writing to
 * Intel Research Berkeley, 2150 Shattuck Avenue, Suite 1300, Berkeley, CA, 
 * 94704.  Attention:  Intel License Inquiry.
 */

package net.tinyos.nesc.dump.xml;

import org.xml.sax.*;

/**
 * A function.
 */
public class Xfunction extends DataDefinition implements Container
{
    /**
     * Non-null for commands and events of interfaces of components
     * (but null for those representing the command and event
     * definition in an interfacedef).
     */
    public Xinterface intf;

    /**
     * true for functions that are commands.
     */
    public boolean command;

    /**
     * true for functions that are events.
     */
    public boolean event;

    public NDElement start(Attributes attrs) {
	Xfunction me = (Xfunction)super.start(attrs);
	me.command = boolDecode(attrs.getValue("command"));
	me.event = boolDecode(attrs.getValue("event"));
	return me;
    }

    public void child(NDElement subElement) {
	/* Intercept references to a containing interface before we call
	   super.child, as this is not the actual container for this
	   function (the container is the component, not the interface) */
	if (subElement instanceof Xinterface)
	    intf = (Xinterface)intf;
	else
	    super.child(subElement);
    }
}