1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
|
package org.aspectj.apache.bcel.classfile;
/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2001 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (https://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Apache" and "Apache Software Foundation" and
* "Apache BCEL" must not be used to endorse or promote products
* derived from this software without prior written permission. For
* written permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* "Apache BCEL", nor may "Apache" appear in their name, without
* prior written permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <https://www.apache.org/>.
*/
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.Serializable;
import org.aspectj.apache.bcel.Constants;
import org.aspectj.apache.bcel.classfile.annotation.RuntimeInvisAnnos;
import org.aspectj.apache.bcel.classfile.annotation.RuntimeInvisParamAnnos;
import org.aspectj.apache.bcel.classfile.annotation.RuntimeInvisTypeAnnos;
import org.aspectj.apache.bcel.classfile.annotation.RuntimeVisAnnos;
import org.aspectj.apache.bcel.classfile.annotation.RuntimeVisParamAnnos;
import org.aspectj.apache.bcel.classfile.annotation.RuntimeVisTypeAnnos;
/**
* Abstract super class for <em>Attribute</em> objects. Currently the <em>ConstantValue</em>, <em>SourceFile</em>, <em>Code</em>,
* <em>Exceptiontable</em>, <em>LineNumberTable</em>, <em>LocalVariableTable</em>, <em>InnerClasses</em> and <em>Synthetic</em>
* attributes are supported. The <em>Unknown</em> attribute stands for non-standard-attributes.
*
* @version $Id: Attribute.java,v 1.9 2009/12/09 18:01:31 aclement Exp $
* @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A>
* @see ConstantValue
* @see SourceFile
* @see Code
* @see Unknown
* @see ExceptionTable
* @see LineNumberTable
* @see LocalVariableTable
* @see InnerClasses
* @see Synthetic
* @see Deprecated
* @see Signature
*/
public abstract class Attribute implements Cloneable, Node, Serializable {
public final static Attribute[] NoAttributes = new Attribute[0];
protected byte tag; // Tag to distinguish subclasses
protected int nameIndex;
protected int length;
protected ConstantPool cpool;
protected Attribute(byte tag, int nameIndex, int length, ConstantPool cpool) {
this.tag = tag;
this.nameIndex = nameIndex;
this.length = length;
this.cpool = cpool;
}
public void dump(DataOutputStream file) throws IOException {
file.writeShort(nameIndex);
file.writeInt(length);
}
// OPTIMIZE how about just reading them in and storing them until we need to decode what they really are?
public static final Attribute readAttribute(DataInputStream file, ConstantPool cpool) throws IOException {
byte tag = Constants.ATTR_UNKNOWN;
int idx = file.readUnsignedShort();
String name = cpool.getConstantUtf8(idx).getValue();
int len = file.readInt();
// Compare strings to find known attribute
for (byte i = 0; i < Constants.KNOWN_ATTRIBUTES; i++) {
if (name.equals(Constants.ATTRIBUTE_NAMES[i])) {
tag = i;
break;
}
}
switch (tag) {
case Constants.ATTR_UNKNOWN:
return new Unknown(idx, len, file, cpool);
case Constants.ATTR_CONSTANT_VALUE:
return new ConstantValue(idx, len, file, cpool);
case Constants.ATTR_SOURCE_FILE:
return new SourceFile(idx, len, file, cpool);
case Constants.ATTR_CODE:
return new Code(idx, len, file, cpool);
case Constants.ATTR_EXCEPTIONS:
return new ExceptionTable(idx, len, file, cpool);
case Constants.ATTR_LINE_NUMBER_TABLE:
return new LineNumberTable(idx, len, file, cpool);
case Constants.ATTR_LOCAL_VARIABLE_TABLE:
return new LocalVariableTable(idx, len, file, cpool);
case Constants.ATTR_INNER_CLASSES:
return new InnerClasses(idx, len, file, cpool);
case Constants.ATTR_SYNTHETIC:
return new Synthetic(idx, len, file, cpool);
case Constants.ATTR_DEPRECATED:
return new Deprecated(idx, len, file, cpool);
case Constants.ATTR_SIGNATURE:
return new Signature(idx, len, file, cpool);
case Constants.ATTR_STACK_MAP:
return new StackMap(idx, len, file, cpool);
case Constants.ATTR_RUNTIME_VISIBLE_ANNOTATIONS:
return new RuntimeVisAnnos(idx, len, file, cpool);
case Constants.ATTR_RUNTIME_INVISIBLE_ANNOTATIONS:
return new RuntimeInvisAnnos(idx, len, file, cpool);
case Constants.ATTR_RUNTIME_VISIBLE_PARAMETER_ANNOTATIONS:
return new RuntimeVisParamAnnos(idx, len, file, cpool);
case Constants.ATTR_RUNTIME_INVISIBLE_PARAMETER_ANNOTATIONS:
return new RuntimeInvisParamAnnos(idx, len, file, cpool);
case Constants.ATTR_ANNOTATION_DEFAULT:
return new AnnotationDefault(idx, len, file, cpool);
case Constants.ATTR_LOCAL_VARIABLE_TYPE_TABLE:
return new LocalVariableTypeTable(idx, len, file, cpool);
case Constants.ATTR_ENCLOSING_METHOD:
return new EnclosingMethod(idx, len, file, cpool);
case Constants.ATTR_BOOTSTRAPMETHODS:
return new BootstrapMethods(idx,len,file,cpool);
case Constants.ATTR_RUNTIME_VISIBLE_TYPE_ANNOTATIONS:
return new RuntimeVisTypeAnnos(idx, len, file, cpool);
case Constants.ATTR_RUNTIME_INVISIBLE_TYPE_ANNOTATIONS:
return new RuntimeInvisTypeAnnos(idx, len, file, cpool);
case Constants.ATTR_METHOD_PARAMETERS:
return new MethodParameters(idx, len, file, cpool);
case Constants.ATTR_MODULE:
return new Module(idx, len, file, cpool);
case Constants.ATTR_MODULE_PACKAGES:
return new ModulePackages(idx, len, file, cpool);
case Constants.ATTR_MODULE_MAIN_CLASS:
return new ModuleMainClass(idx, len, file, cpool);
case Constants.ATTR_NEST_HOST:
return new NestHost(idx, len, file, cpool);
case Constants.ATTR_NEST_MEMBERS:
return new NestMembers(idx, len, file, cpool);
default:
throw new IllegalStateException();
}
}
public String getName() {
return cpool.getConstantUtf8(nameIndex).getValue();
}
public final int getLength() {
return length;
}
public final int getNameIndex() {
return nameIndex;
}
public final byte getTag() {
return tag;
}
public final ConstantPool getConstantPool() {
return cpool;
}
@Override
public String toString() {
return Constants.ATTRIBUTE_NAMES[tag];
}
@Override
public abstract void accept(ClassVisitor v);
}
|
