1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17 package org.apache.commons.javaflow.bytecode.transformation.bcel.analyser;
18
19 import org.apache.bcel.generic.*;
20
21 /**
22 * This class represents an exception handler; that is, an ObjectType
23 * representing a subclass of java.lang.Throwable and the instruction
24 * the handler starts off (represented by an InstructionContext).
25 *
26 * WARNING! These classes are a fork of the bcel verifier.
27 *
28 * @version $Id: ExceptionHandler.java 480487 2006-11-29 08:54:42Z bayard $
29 * @author <A HREF="http://www.inf.fu-berlin.de/~ehaase"/>Enver Haase</A>
30 */
31 public class ExceptionHandler{
32 /** The type of the exception to catch. NULL means ANY. */
33 private ObjectType catchtype;
34
35 /** The InstructionHandle where the handling begins. */
36 private InstructionHandle handlerpc;
37
38 /** Leave instance creation to JustIce. */
39 ExceptionHandler(ObjectType catch_type, InstructionHandle handler_pc){
40 catchtype = catch_type;
41 handlerpc = handler_pc;
42 }
43
44 /**
45 * Returns the type of the exception that's handled. <B>'null' means 'ANY'.</B>
46 */
47 public ObjectType getExceptionType(){
48 return catchtype;
49 }
50
51 /**
52 * Returns the InstructionHandle where the handler starts off.
53 */
54 public InstructionHandle getHandlerStart(){
55 return handlerpc;
56 }
57 }