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