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Java > Open Source Codes > org > logicalcobwebs > asm > tree > InsnNode


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
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  * Contact: Eric.Bruneton@rd.francetelecom.com
31  *
32  * Author: Eric Bruneton
33  */
34
35 package org.logicalcobwebs.asm.tree;
36
37 import org.logicalcobwebs.asm.CodeVisitor;
38
39 /**
40  * A node that represents a zero operand instruction.
41  */
42
43 public class InsnNode extends AbstractInsnNode {
44
45   /**
46    * Constructs a new {@link InsnNode InsnNode} object.
47    *
48    * @param opcode the opcode of the instruction to be constructed. This opcode
49    * must be NOP, ACONST_NULL, ICONST_M1, ICONST_0, ICONST_1, ICONST_2,
50    * ICONST_3, ICONST_4, ICONST_5, LCONST_0, LCONST_1, FCONST_0, FCONST_1,
51    * FCONST_2, DCONST_0, DCONST_1,
52    *
53    * IALOAD, LALOAD, FALOAD, DALOAD, AALOAD, BALOAD, CALOAD, SALOAD,
54    * IASTORE, LASTORE, FASTORE, DASTORE, AASTORE, BASTORE, CASTORE,
55    * SASTORE,
56    *
57    * POP, POP2, DUP, DUP_X1, DUP_X2, DUP2, DUP2_X1, DUP2_X2, SWAP,
58    *
59    * IADD, LADD, FADD, DADD, ISUB, LSUB, FSUB, DSUB, IMUL, LMUL, FMUL,
60    * DMUL, IDIV, LDIV, FDIV, DDIV, IREM, LREM, FREM, DREM, INEG, LNEG,
61    * FNEG, DNEG, ISHL, LSHL, ISHR, LSHR, IUSHR, LUSHR, IAND, LAND, IOR,
62    * LOR, IXOR, LXOR,
63    *
64    * I2L, I2F, I2D, L2I, L2F, L2D, F2I, F2L, F2D, D2I, D2L, D2F, I2B, I2C,
65    * I2S,
66    *
67    * LCMP, FCMPL, FCMPG, DCMPL, DCMPG,
68    *
69    * IRETURN, LRETURN, FRETURN, DRETURN, ARETURN, RETURN,
70    *
71    * ARRAYLENGTH,
72    *
73    * ATHROW,
74    *
75    * MONITORENTER, or MONITOREXIT.
76    */
77
78   public InsnNode (final int opcode) {
79     super(opcode);
80   }
81
82   /**
83    * Sets the opcode of this instruction.
84    *
85    * @param opcode the new instruction opcode. This opcode must be NOP,
86    * ACONST_NULL, ICONST_M1, ICONST_0, ICONST_1, ICONST_2,
87    * ICONST_3, ICONST_4, ICONST_5, LCONST_0, LCONST_1, FCONST_0, FCONST_1,
88    * FCONST_2, DCONST_0, DCONST_1,
89    *
90    * IALOAD, LALOAD, FALOAD, DALOAD, AALOAD, BALOAD, CALOAD, SALOAD,
91    * IASTORE, LASTORE, FASTORE, DASTORE, AASTORE, BASTORE, CASTORE,
92    * SASTORE,
93    *
94    * POP, POP2, DUP, DUP_X1, DUP_X2, DUP2, DUP2_X1, DUP2_X2, SWAP,
95    *
96    * IADD, LADD, FADD, DADD, ISUB, LSUB, FSUB, DSUB, IMUL, LMUL, FMUL,
97    * DMUL, IDIV, LDIV, FDIV, DDIV, IREM, LREM, FREM, DREM, INEG, LNEG,
98    * FNEG, DNEG, ISHL, LSHL, ISHR, LSHR, IUSHR, LUSHR, IAND, LAND, IOR,
99    * LOR, IXOR, LXOR,
100    *
101    * I2L, I2F, I2D, L2I, L2F, L2D, F2I, F2L, F2D, D2I, D2L, D2F, I2B, I2C,
102    * I2S,
103    *
104    * LCMP, FCMPL, FCMPG, DCMPL, DCMPG,
105    *
106    * IRETURN, LRETURN, FRETURN, DRETURN, ARETURN, RETURN,
107    *
108    * ARRAYLENGTH,
109    *
110    * ATHROW,
111    *
112    * MONITORENTER, or MONITOREXIT.
113    */
114
115   public void setOpcode (final int opcode) {
116     this.opcode = opcode;
117   }
118
119   /**
120    * Makes the given code visitor visit this instruction.
121    */
122
123   public void accept (final CodeVisitor cv) {
124     cv.visitInsn(opcode);
125   }
126 }
127
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