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 $Id$ 30 */ 31 public class ExceptionHandler{ 32 /** The type of the exception to catch. NULL means ANY. */ 33 private final ObjectType catchtype; 34 35 /** The InstructionHandle where the handling begins. */ 36 private final InstructionHandle handlerpc; 37 38 /** Leave instance creation to JustIce. */ ExceptionHandler(final ObjectType catch_type, final InstructionHandle handler_pc)39 ExceptionHandler(final ObjectType catch_type, final 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 */ getExceptionType()47 public ObjectType getExceptionType() { 48 return catchtype; 49 } 50 51 /** 52 * Returns the InstructionHandle where the handler starts off. 53 */ getHandlerStart()54 public InstructionHandle getHandlerStart() { 55 return handlerpc; 56 } 57 } 58