1/* 2 * reserved comment block 3 * DO NOT REMOVE OR ALTER! 4 */ 5/* 6 * Licensed to the Apache Software Foundation (ASF) under one or more 7 * contributor license agreements. See the NOTICE file distributed with 8 * this work for additional information regarding copyright ownership. 9 * The ASF licenses this file to You under the Apache License, Version 2.0 10 * (the "License"); you may not use this file except in compliance with 11 * the License. You may obtain a copy of the License at 12 * 13 * http://www.apache.org/licenses/LICENSE-2.0 14 * 15 * Unless required by applicable law or agreed to in writing, software 16 * distributed under the License is distributed on an "AS IS" BASIS, 17 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 18 * See the License for the specific language governing permissions and 19 * limitations under the License. 20 */ 21 22package com.sun.org.apache.bcel.internal.generic; 23 24 25/** 26 * ARRAYLENGTH - Get length of array 27 * <PRE>Stack: ..., arrayref -> ..., length</PRE> 28 * 29 * @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A> 30 */ 31public class ARRAYLENGTH extends Instruction 32 implements ExceptionThrower, StackProducer { 33 /** Get length of array 34 */ 35 public ARRAYLENGTH() { 36 super(com.sun.org.apache.bcel.internal.Constants.ARRAYLENGTH, (short)1); 37 } 38 39 /** @return exceptions this instruction may cause 40 */ 41 public Class[] getExceptions() { 42 return new Class[] { com.sun.org.apache.bcel.internal.ExceptionConstants.NULL_POINTER_EXCEPTION }; 43 } 44 45 46 /** 47 * Call corresponding visitor method(s). The order is: 48 * Call visitor methods of implemented interfaces first, then 49 * call methods according to the class hierarchy in descending order, 50 * i.e., the most specific visitXXX() call comes last. 51 * 52 * @param v Visitor object 53 */ 54 public void accept(Visitor v) { 55 v.visitExceptionThrower(this); 56 v.visitStackProducer(this); 57 v.visitARRAYLENGTH(this); 58 } 59} 60