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Java > Open Source Codes > oracle > toplink > libraries > asm > tree > AbstractInsnNode


1 /***
2  * ASM: a very small and fast Java bytecode manipulation framework
3  * Copyright (c) 2000,2002,2003 INRIA, France Telecom
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  * notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  * notice, this list of conditions and the following disclaimer in the
13  * documentation and/or other materials provided with the distribution.
14  * 3. Neither the name of the copyright holders nor the names of its
15  * contributors may be used to endorse or promote products derived from
16  * this software without specific prior written permission.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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29  */
30
31 package oracle.toplink.libraries.asm.tree;
32
33 import oracle.toplink.libraries.asm.CodeVisitor;
34
35 /**
36  * A node that represents a bytecode instruction.
37  *
38  * @author Eric Bruneton
39  */
40
41 public abstract class AbstractInsnNode {
42
43   /**
44    * The opcode of this instruction.
45    */
46
47   protected int opcode;
48
49   /**
50    * Constructs a new {@link AbstractInsnNode AbstractInsnNode} object.
51    *
52    * @param opcode the opcode of the instruction to be constructed.
53    */
54
55   protected AbstractInsnNode (final int opcode) {
56     this.opcode = opcode;
57   }
58
59   /**
60    * Returns the opcode of this instruction.
61    *
62    * @return the opcode of this instruction.
63    */
64
65   public int getOpcode () {
66     return opcode;
67   }
68
69   /**
70    * Makes the given code visitor visit this instruction.
71    *
72    * @param cv a code visitor.
73    */
74
75   public abstract void accept (final CodeVisitor cv);
76 }
77
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