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 */
18 package org.apache.bcel.verifier.structurals;
19
20
21 import org.apache.bcel.generic.InstructionHandle;
22 import org.apache.bcel.generic.ObjectType;
23
24 /**
25 * This class represents an exception handler; that is, an ObjectType
26 * representing a subclass of java.lang.Throwable and the instruction
27 * the handler starts off (represented by an InstructionContext).
28 *
29 * @version $Id: ExceptionHandler.java 947879 2010-05-25 00:48:30Z sebb $
30 * @author Enver Haase
31 */
32 public class ExceptionHandler{
33 /** The type of the exception to catch. NULL means ANY. */
34 private ObjectType catchtype;
35
36 /** The InstructionHandle where the handling begins. */
37 private InstructionHandle handlerpc;
38
39 /** Leave instance creation to JustIce. */
40 ExceptionHandler(ObjectType catch_type, InstructionHandle handler_pc){
41 catchtype = catch_type;
42 handlerpc = handler_pc;
43 }
44
45 /**
46 * Returns the type of the exception that's handled. <B>'null' means 'ANY'.</B>
47 */
48 public ObjectType getExceptionType(){
49 return catchtype;
50 }
51
52 /**
53 * Returns the InstructionHandle where the handler starts off.
54 */
55 public InstructionHandle getHandlerStart(){
56 return handlerpc;
57 }
58 }