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.generic; 019 020import org.apache.bcel.ExceptionConst; 021 022/** 023 * ANEWARRAY - Create new array of references 024 * <PRE>Stack: ..., count -> ..., arrayref</PRE> 025 * 026 * @version $Id: ANEWARRAY.java 1747278 2016-06-07 17:28:43Z britter $ 027 */ 028public class ANEWARRAY extends CPInstruction implements LoadClass, AllocationInstruction, 029 ExceptionThrower, StackConsumer, StackProducer { 030 031 /** 032 * Empty constructor needed for the Class.newInstance() statement in 033 * Instruction.readInstruction(). Not to be used otherwise. 034 */ 035 ANEWARRAY() { 036 } 037 038 039 public ANEWARRAY(final int index) { 040 super(org.apache.bcel.Const.ANEWARRAY, index); 041 } 042 043 044 @Override 045 public Class<?>[] getExceptions() { 046 return ExceptionConst.createExceptions(ExceptionConst.EXCS.EXCS_CLASS_AND_INTERFACE_RESOLUTION, 047 ExceptionConst.NEGATIVE_ARRAY_SIZE_EXCEPTION); 048 } 049 050 051 /** 052 * Call corresponding visitor method(s). The order is: 053 * Call visitor methods of implemented interfaces first, then 054 * call methods according to the class hierarchy in descending order, 055 * i.e., the most specific visitXXX() call comes last. 056 * 057 * @param v Visitor object 058 */ 059 @Override 060 public void accept( final Visitor v ) { 061 v.visitLoadClass(this); 062 v.visitAllocationInstruction(this); 063 v.visitExceptionThrower(this); 064 v.visitStackProducer(this); 065 v.visitTypedInstruction(this); 066 v.visitCPInstruction(this); 067 v.visitANEWARRAY(this); 068 } 069 070 071 @Override 072 public ObjectType getLoadClassType( final ConstantPoolGen cpg ) { 073 Type t = getType(cpg); 074 if (t instanceof ArrayType) { 075 t = ((ArrayType) t).getBasicType(); 076 } 077 return (t instanceof ObjectType) ? (ObjectType) t : null; 078 } 079}