StackInstruction.java Source File

00001 package de.fub.bytecode.generic;
00002 
00003 /**
00004  * Super class for stack operations like DUP and POP.
00005  *
00006  * @version $Id: StackInstruction.java,v 1.1.1.1 2002/01/24 03:41:41 pserver Exp $
00007  * @author  <A HREF="http://www.inf.fu-berlin.de/~dahm">M. Dahm</A>
00008  */
00009 public abstract class StackInstruction extends Instruction {
00010   /**
00011    * Empty constructor needed for the Class.newInstance() statement in
00012    * Instruction.readInstruction(). Not to be used otherwise.
00013    */
00014   StackInstruction() {}  
00015   /**
00016    * @param tag instruction opcode
00017    */
00018   protected StackInstruction(short tag) {
00019     super(tag, (short)1);
00020   }  
00021   /** @return Type.UNKNOWN
00022    */
00023   public Type getType(ConstantPoolGen cp) {
00024     return Type.UNKNOWN;
00025   }  
00026 }