Home | History | Annotate | Download | only in convert
      1 /*
      2  * Javassist, a Java-bytecode translator toolkit.
      3  * Copyright (C) 1999-2007 Shigeru Chiba. All Rights Reserved.
      4  *
      5  * The contents of this file are subject to the Mozilla Public License Version
      6  * 1.1 (the "License"); you may not use this file except in compliance with
      7  * the License.  Alternatively, the contents of this file may be used under
      8  * the terms of the GNU Lesser General Public License Version 2.1 or later.
      9  *
     10  * Software distributed under the License is distributed on an "AS IS" basis,
     11  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
     12  * for the specific language governing rights and limitations under the
     13  * License.
     14  */
     15 
     16 package javassist.convert;
     17 
     18 import javassist.CtMethod;
     19 import javassist.NotFoundException;
     20 import javassist.bytecode.*;
     21 
     22 public class TransformAfter extends TransformBefore {
     23     public TransformAfter(Transformer next,
     24                            CtMethod origMethod, CtMethod afterMethod)
     25         throws NotFoundException
     26     {
     27         super(next, origMethod, afterMethod);
     28     }
     29 
     30     protected int match2(int pos, CodeIterator iterator) throws BadBytecode {
     31         iterator.move(pos);
     32         iterator.insert(saveCode);
     33         iterator.insert(loadCode);
     34         int p = iterator.insertGap(3);
     35         iterator.setMark(p);
     36         iterator.insert(loadCode);
     37         pos = iterator.next();
     38         p = iterator.getMark();
     39         iterator.writeByte(iterator.byteAt(pos), p);
     40         iterator.write16bit(iterator.u16bitAt(pos + 1), p + 1);
     41         iterator.writeByte(INVOKESTATIC, pos);
     42         iterator.write16bit(newIndex, pos + 1);
     43         iterator.move(p);
     44         return iterator.next();
     45     }
     46 }
     47