001/* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 * 017 */ 018package org.apache.bcel.verifier.structurals; 019 020 021import org.apache.bcel.generic.InstructionHandle; 022import org.apache.bcel.generic.ObjectType; 023 024/** 025 * This class represents an exception handler; that is, an ObjectType 026 * representing a subclass of java.lang.Throwable and the instruction 027 * the handler starts off (represented by an InstructionContext). 028 * 029 */ 030public class ExceptionHandler{ 031 /** The type of the exception to catch. NULL means ANY. */ 032 private final ObjectType catchtype; 033 034 /** The InstructionHandle where the handling begins. */ 035 private final InstructionHandle handlerpc; 036 037 /** Leave instance creation to JustIce. */ 038 ExceptionHandler(final ObjectType catch_type, final InstructionHandle handler_pc) { 039 catchtype = catch_type; 040 handlerpc = handler_pc; 041 } 042 043 /** 044 * Returns the type of the exception that's handled. <B>'null' means 'ANY'.</B> 045 */ 046 public ObjectType getExceptionType() { 047 return catchtype; 048 } 049 050 /** 051 * Returns the InstructionHandle where the handler starts off. 052 */ 053 public InstructionHandle getHandlerStart() { 054 return handlerpc; 055 } 056}