IFNULL.java Source File

00001 package de.fub.bytecode.generic;
00002 
00003 /** 
00004  * IFNULL - Branch if reference is not null
00005  *
00006  * <PRE>Stack: ..., reference -&gt; ...</PRE>
00007  *
00008  * @version $Id: IFNULL.java,v 1.1.1.1 2002/01/24 03:44:04 pserver Exp $
00009  * @author  <A HREF="http://www.inf.fu-berlin.de/~dahm">M. Dahm</A>
00010  */
00011 public class IFNULL extends IfInstruction {
00012   /**
00013    * Empty constructor needed for the Class.newInstance() statement in
00014    * Instruction.readInstruction(). Not to be used otherwise.
00015    */
00016   IFNULL() {}  
00017   public IFNULL(InstructionHandle target) {
00018     super(IFNULL, target);
00019   }  
00020   /**
00021    * @return negation of instruction
00022    */
00023   public IfInstruction negate() {
00024     return new IFNONNULL(target);
00025   }  
00026 }