01: /***
02: * ASM: a very small and fast Java bytecode manipulation framework
03: * Copyright (c) 2000-2005 INRIA, France Telecom
04: * All rights reserved.
05: *
06: * Redistribution and use in source and binary forms, with or without
07: * modification, are permitted provided that the following conditions
08: * are met:
09: * 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: */package org.objectweb.asm.tree;
30:
31: import java.util.Map;
32:
33: import org.objectweb.asm.MethodVisitor;
34:
35: /**
36: * A node that represents a field instruction. A field instruction is an
37: * instruction that loads or stores the value of a field of an object.
38: *
39: * @author Eric Bruneton
40: */
41: public class FieldInsnNode extends AbstractInsnNode {
42:
43: /**
44: * The internal name of the field's owner class (see
45: * {@link org.objectweb.asm.Type#getInternalName() getInternalName}).
46: */
47: public String owner;
48:
49: /**
50: * The field's name.
51: */
52: public String name;
53:
54: /**
55: * The field's descriptor (see {@link org.objectweb.asm.Type}).
56: */
57: public String desc;
58:
59: /**
60: * Constructs a new {@link FieldInsnNode}.
61: *
62: * @param opcode the opcode of the type instruction to be constructed. This
63: * opcode must be GETSTATIC, PUTSTATIC, GETFIELD or PUTFIELD.
64: * @param owner the internal name of the field's owner class (see
65: * {@link org.objectweb.asm.Type#getInternalName() getInternalName}).
66: * @param name the field's name.
67: * @param desc the field's descriptor (see {@link org.objectweb.asm.Type}).
68: */
69: public FieldInsnNode(final int opcode, final String owner,
70: final String name, final String desc) {
71: super (opcode);
72: this .owner = owner;
73: this .name = name;
74: this .desc = desc;
75: }
76:
77: /**
78: * Sets the opcode of this instruction.
79: *
80: * @param opcode the new instruction opcode. This opcode must be GETSTATIC,
81: * PUTSTATIC, GETFIELD or PUTFIELD.
82: */
83: public void setOpcode(final int opcode) {
84: this .opcode = opcode;
85: }
86:
87: public int getType() {
88: return FIELD_INSN;
89: }
90:
91: public void accept(final MethodVisitor cv) {
92: cv.visitFieldInsn(opcode, owner, name, desc);
93: }
94:
95: public AbstractInsnNode clone(final Map labels) {
96: return new FieldInsnNode(opcode, owner, name, desc);
97: }
98: }
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