2 * ASM: a very small and fast Java bytecode manipulation framework
3 * Copyright (c) 2000-2005 INRIA, France Telecom
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
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.
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
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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
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31 package org.objectweb.asm.attrs;
33 import org.objectweb.asm.Label;
36 * Verification type info used by {@link StackMapAttribute}.
38 * @see <a href="http://www.jcp.org/en/jsr/detail?id=139">JSR 139 : Connected
39 * Limited Device Configuration 1.1</a>
41 * @see "ClassFileFormat-Java6.fm Page 138 Friday, April 15, 2005 3:22 PM"
43 * @author Eugene Kuleshov
46 public class StackMapType {
48 public static final int ITEM_Top = 0;
49 public static final int ITEM_Integer = 1;
50 public static final int ITEM_Float = 2;
51 public static final int ITEM_Double = 3;
52 public static final int ITEM_Long = 4;
53 public static final int ITEM_Null = 5;
54 public static final int ITEM_UninitializedThis = 6;
55 public static final int ITEM_Object = 7;
56 public static final int ITEM_Uninitialized = 8;
58 public static final String[] ITEM_NAMES = {
71 private String object;
73 private StackMapType(int type) {
77 public int getType() {
81 public static StackMapType getTypeInfo(int itemType) {
82 if (itemType < ITEM_Top || itemType > ITEM_Uninitialized) {
83 throw new IllegalArgumentException("" + itemType);
85 return new StackMapType(itemType);
88 public void setLabel(Label offset) {
92 public void setObject(String object) {
96 public Label getLabel() {
100 public String getObject() {
104 public String toString() {
105 StringBuffer sb = new StringBuffer(ITEM_NAMES[type]);
106 if (type == ITEM_Object) {
107 sb.append(":").append(object);
109 if (type == ITEM_Uninitialized) {
110 sb.append(":L").append(System.identityHashCode(offset));
112 return sb.toString();