KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > org > objectweb > asm > tree > FieldInsnNode


1 /***
2  * ASM: a very small and fast Java bytecode manipulation framework
3  * Copyright (c) 2000-2005 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
21  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
22  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
28  * THE POSSIBILITY OF SUCH DAMAGE.
29  */
30 package org.objectweb.asm.tree;
31
32 import org.objectweb.asm.MethodVisitor;
33
34 /**
35  * A node that represents a field instruction. A field instruction is an
36  * instruction that loads or stores the value of a field of an object.
37  *
38  * @author Eric Bruneton
39  */
40 public class FieldInsnNode extends AbstractInsnNode {
41
42     /**
43      * The internal name of the field's owner class (see
44      * {@link Type#getInternalName() getInternalName}).
45      */
46     public String JavaDoc owner;
47
48     /**
49      * The field's name.
50      */
51     public String JavaDoc name;
52
53     /**
54      * The field's descriptor (see {@link Type}).
55      */
56     public String JavaDoc desc;
57
58     /**
59      * Constructs a new {@link FieldInsnNode}.
60      *
61      * @param opcode the opcode of the type instruction to be constructed. This
62      * opcode must be GETSTATIC, PUTSTATIC, GETFIELD or PUTFIELD.
63      * @param owner the internal name of the field's owner class (see
64      * {@link Type#getInternalName() getInternalName}).
65      * @param name the field's name.
66      * @param desc the field's descriptor (see {@link Type}).
67      */
68     public FieldInsnNode(
69         final int opcode,
70         final String JavaDoc owner,
71         final String JavaDoc name,
72         final String JavaDoc desc)
73     {
74         super(opcode);
75         this.owner = owner;
76         this.name = name;
77         this.desc = desc;
78     }
79
80     /**
81      * Sets the opcode of this instruction.
82      *
83      * @param opcode the new instruction opcode. This opcode must be GETSTATIC,
84      * PUTSTATIC, GETFIELD or PUTFIELD.
85      */
86     public void setOpcode(final int opcode) {
87         this.opcode = opcode;
88     }
89
90     public void accept(final MethodVisitor cv) {
91         cv.visitFieldInsn(opcode, owner, name, desc);
92     }
93
94     public int getType() {
95         return FIELD_INSN;
96     }
97 }
98
Popular Tags