1 /*
2  * Copyright (c) 2017, 2020, Oracle and/or its affiliates. All rights reserved.
3  */
4 /*
5  * Licensed to the Apache Software Foundation (ASF) under one or more
6  * contributor license agreements.  See the NOTICE file distributed with
7  * this work for additional information regarding copyright ownership.
8  * The ASF licenses this file to You under the Apache License, Version 2.0
9  * (the "License"); you may not use this file except in compliance with
10  * the License.  You may obtain a copy of the License at
11  *
12  *      http://www.apache.org/licenses/LICENSE-2.0
13  *
14  * Unless required by applicable law or agreed to in writing, software
15  * distributed under the License is distributed on an "AS IS" BASIS,
16  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17  * See the License for the specific language governing permissions and
18  * limitations under the License.
19  */
20 
21 package com.sun.org.apache.bcel.internal.generic;
22 
23 import com.sun.org.apache.bcel.internal.Const;
24 
25 /**
26  * ALOAD - Load reference from local variable
27  * <PRE>Stack: ... -&gt; ..., objectref</PRE>
28  *
29  * @LastModified: Jan 2020
30  */
31 public class ALOAD extends LoadInstruction {
32 
33     /**
34      * Empty constructor needed for Instruction.readInstruction.
35      * Not to be used otherwise.
36      */
ALOAD()37     ALOAD() {
38         super(Const.ALOAD, Const.ALOAD_0);
39     }
40 
41 
42     /** Load reference from local variable
43      * @param n index of local variable
44      */
ALOAD(final int n)45     public ALOAD(final int n) {
46         super(Const.ALOAD, Const.ALOAD_0, n);
47     }
48 
49 
50     /**
51      * Call corresponding visitor method(s). The order is:
52      * Call visitor methods of implemented interfaces first, then
53      * call methods according to the class hierarchy in descending order,
54      * i.e., the most specific visitXXX() call comes last.
55      *
56      * @param v Visitor object
57      */
58     @Override
accept( final Visitor v )59     public void accept( final Visitor v ) {
60         super.accept(v);
61         v.visitALOAD(this);
62     }
63 }
64