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
16package javassist.convert;
17
18import javassist.CtMethod;
19import javassist.NotFoundException;
20import javassist.bytecode.*;
21
22public 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