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,
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18  * See the License for the specific language governing permissions and
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20  */
21 
22 package com.sun.org.apache.bcel.internal.generic;
23 
24 import com.sun.org.apache.bcel.internal.ExceptionConst;
25 
26 /**
27  * ANEWARRAY -  Create new array of references
28  * <PRE>Stack: ..., count -&gt; ..., arrayref</PRE>
29  *
30  */
31 public class ANEWARRAY extends CPInstruction implements LoadClass, AllocationInstruction,
32         ExceptionThrower, StackConsumer, StackProducer {
33 
34     /**
35      * Empty constructor needed for Instruction.readInstruction.
36      * Not to be used otherwise.
37      */
ANEWARRAY()38     ANEWARRAY() {
39     }
40 
41 
ANEWARRAY(final int index)42     public ANEWARRAY(final int index) {
43         super(com.sun.org.apache.bcel.internal.Const.ANEWARRAY, index);
44     }
45 
46 
47     @Override
getExceptions()48     public Class<?>[] getExceptions() {
49         return ExceptionConst.createExceptions(ExceptionConst.EXCS.EXCS_CLASS_AND_INTERFACE_RESOLUTION,
50             ExceptionConst.NEGATIVE_ARRAY_SIZE_EXCEPTION);
51     }
52 
53 
54     /**
55      * Call corresponding visitor method(s). The order is:
56      * Call visitor methods of implemented interfaces first, then
57      * call methods according to the class hierarchy in descending order,
58      * i.e., the most specific visitXXX() call comes last.
59      *
60      * @param v Visitor object
61      */
62     @Override
accept( final Visitor v )63     public void accept( final Visitor v ) {
64         v.visitLoadClass(this);
65         v.visitAllocationInstruction(this);
66         v.visitExceptionThrower(this);
67         v.visitStackProducer(this);
68         v.visitTypedInstruction(this);
69         v.visitCPInstruction(this);
70         v.visitANEWARRAY(this);
71     }
72 
73 
74     @Override
getLoadClassType( final ConstantPoolGen cpg )75     public ObjectType getLoadClassType( final ConstantPoolGen cpg ) {
76         Type t = getType(cpg);
77         if (t instanceof ArrayType) {
78             t = ((ArrayType) t).getBasicType();
79         }
80         return (t instanceof ObjectType) ? (ObjectType) t : null;
81     }
82 }
83