package agg.attribute.parser.javaExpr;


/* JJT: 0.2.2 */

/**
 * @version $Id: ASTSubtractNode.java,v 1.3 2010/07/29 10:09:20 olga Exp $
 * @author $Author: olga $
 */
public class ASTSubtractNode extends NUMxNUMtoNUMnode {

	static final long serialVersionUID = 1L;

	ASTSubtractNode(String id) {
		super(id);
	}

	public static Node jjtCreate(String id) {
		// Thread.dumpStack();
		return new ASTSubtractNode(id);
	}

	public void interpret() {
		jjtGetChild(0).interpret();
		jjtGetChild(1).interpret();

		Object op1Result = stack.get(top - 1);
		Object op2Result = stack.get(top);
		Object result;

		if (typeCode() <= typeCode(Integer.TYPE)) {
			result = new Integer(((Number) op1Result).intValue()
					- ((Number) op2Result).intValue());
		} else {
			result = new Float(((Number) op1Result).floatValue()
					- ((Number) op2Result).floatValue());
		}
		stack.set(--top, result);
	}

	public String getString() {
		Node left = jjtGetChild(0);
		Node right = jjtGetChild(1);
		return left.getString() + "-" + right.getString();
	}
}
/*
 * $Log: ASTSubtractNode.java,v $
 * Revision 1.3  2010/07/29 10:09:20  olga
 * Array stack changed to Vector stack
 *
 * Revision 1.2  2007/09/10 13:05:47  olga
 * In this update:
 * - package xerces2.5.0 is not used anymore;
 * - class com.objectspace.jgl.Pair is replaced by the agg own generic class agg.util.Pair;
 * - bugs fixed in:  usage of PACs in rules;  match completion;
 * 	usage of static method calls in attr. conditions
 * - graph editing: added some new features
 * Revision 1.1 2005/08/25 11:56:51 enrico ***
 * empty log message ***
 * 
 * Revision 1.1 2005/05/30 12:58:01 olga Version with Eclipse
 * 
 * Revision 1.3 2004/09/23 08:26:43 olga Fehler bei CPs weg, Debug output in
 * file
 * 
 * Revision 1.2 2003/03/05 18:24:15 komm sorted/optimized import statements
 * 
 * Revision 1.1.1.1 2002/07/11 12:17:04 olga Imported sources
 * 
 * Revision 1.6 2000/04/05 12:10:39 shultzke serialVersionUID aus V1.0.0
 * generiert
 * 
 * Revision 1.5 2000/03/14 10:59:30 shultzke Transformieren von Variablen auf
 * Variablen sollte jetzt funktionieren Ueber das Design der Copy-Methode des
 * abstrakten Syntaxbaumes sollte unbedingt diskutiert werden.
 * 
 */