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
214
215
216
217
|
/*
* ProGuard -- shrinking, optimization, obfuscation, and preverification
* of Java bytecode.
*
* Copyright (c) 2002-2013 Eric Lafortune (eric@graphics.cornell.edu)
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package proguard.classfile.editor;
import proguard.classfile.*;
import proguard.classfile.attribute.annotation.*;
import proguard.classfile.attribute.annotation.visitor.ElementValueVisitor;
/**
* This AnnotationVisitor adds all element values that it visits to the given
* target annotation default attribute, annotation, or element value.
*
* @author Eric Lafortune
*/
public class ElementValueAdder
implements ElementValueVisitor
{
private static final ElementValue[] EMPTY_ELEMENT_VALUES = new ElementValue[0];
private final ProgramClass targetClass;
private final AnnotationDefaultAttribute targetAnnotationDefaultAttribute;
private final ConstantAdder constantAdder;
private final ElementValuesEditor elementValuesEditor;
/**
* Creates a new ElementValueAdder that will copy element values into the
* given target annotation default attribute value.
*/
public ElementValueAdder(ProgramClass targetClass,
AnnotationDefaultAttribute targetAnnotationDefaultAttribute,
boolean replaceElementValues)
{
this.targetClass = targetClass;
this.targetAnnotationDefaultAttribute = targetAnnotationDefaultAttribute;
constantAdder = new ConstantAdder(targetClass);
elementValuesEditor = null;
}
/**
* Creates a new ElementValueAdder that will copy element values into the
* given target annotation.
*/
public ElementValueAdder(ProgramClass targetClass,
Annotation targetAnnotation,
boolean replaceElementValues)
{
this.targetClass = targetClass;
this.targetAnnotationDefaultAttribute = null;
constantAdder = new ConstantAdder(targetClass);
elementValuesEditor = new ElementValuesEditor(targetClass,
targetAnnotation,
replaceElementValues);
}
/**
* Creates a new ElementValueAdder that will copy element values into the
* given target element value.
*/
public ElementValueAdder(ProgramClass targetClass,
ArrayElementValue targetArrayElementValue,
boolean replaceElementValues)
{
this.targetClass = targetClass;
this.targetAnnotationDefaultAttribute = null;
constantAdder = new ConstantAdder(targetClass);
elementValuesEditor = new ElementValuesEditor(targetClass,
targetArrayElementValue,
replaceElementValues);
}
// Implementations for ElementValueVisitor.
public void visitConstantElementValue(Clazz clazz, Annotation annotation, ConstantElementValue constantElementValue)
{
// Create a copy of the element value.
ConstantElementValue newConstantElementValue =
new ConstantElementValue(constantElementValue.u1tag,
constantElementValue.u2elementNameIndex == 0 ? 0 :
constantAdder.addConstant(clazz, constantElementValue.u2elementNameIndex),
constantAdder.addConstant(clazz, constantElementValue.u2constantValueIndex));
newConstantElementValue.referencedClass = constantElementValue.referencedClass;
newConstantElementValue.referencedMethod = constantElementValue.referencedMethod;
// Add it to the target.
addElementValue(newConstantElementValue);
}
public void visitEnumConstantElementValue(Clazz clazz, Annotation annotation, EnumConstantElementValue enumConstantElementValue)
{
// Create a copy of the element value.
EnumConstantElementValue newEnumConstantElementValue =
new EnumConstantElementValue(enumConstantElementValue.u2elementNameIndex == 0 ? 0 :
constantAdder.addConstant(clazz, enumConstantElementValue.u2elementNameIndex),
constantAdder.addConstant(clazz, enumConstantElementValue.u2typeNameIndex),
constantAdder.addConstant(clazz, enumConstantElementValue.u2constantNameIndex));
newEnumConstantElementValue.referencedClass = enumConstantElementValue.referencedClass;
newEnumConstantElementValue.referencedMethod = enumConstantElementValue.referencedMethod;
// TODO: Clone array.
newEnumConstantElementValue.referencedClasses = enumConstantElementValue.referencedClasses;
// Add it to the target.
addElementValue(newEnumConstantElementValue);
}
public void visitClassElementValue(Clazz clazz, Annotation annotation, ClassElementValue classElementValue)
{
// Create a copy of the element value.
ClassElementValue newClassElementValue =
new ClassElementValue(classElementValue.u2elementNameIndex == 0 ? 0 :
constantAdder.addConstant(clazz, classElementValue.u2elementNameIndex),
constantAdder.addConstant(clazz, classElementValue.u2classInfoIndex));
newClassElementValue.referencedClass = classElementValue.referencedClass;
newClassElementValue.referencedMethod = classElementValue.referencedMethod;
// TODO: Clone array.
newClassElementValue.referencedClasses = classElementValue.referencedClasses;
// Add it to the target.
addElementValue(newClassElementValue);
}
public void visitAnnotationElementValue(Clazz clazz, Annotation annotation, AnnotationElementValue annotationElementValue)
{
// Create a copy of the element value.
AnnotationElementValue newAnnotationElementValue =
new AnnotationElementValue(annotationElementValue.u2elementNameIndex == 0 ? 0 :
constantAdder.addConstant(clazz, annotationElementValue.u2elementNameIndex),
new Annotation());
newAnnotationElementValue.referencedClass = annotationElementValue.referencedClass;
newAnnotationElementValue.referencedMethod = annotationElementValue.referencedMethod;
annotationElementValue.annotationAccept(clazz,
new AnnotationAdder(targetClass,
newAnnotationElementValue));
// Add it to the target.
addElementValue(newAnnotationElementValue);
}
public void visitArrayElementValue(Clazz clazz, Annotation annotation, ArrayElementValue arrayElementValue)
{
// Create a copy of the element value.
ArrayElementValue newArrayElementValue =
new ArrayElementValue(arrayElementValue.u2elementNameIndex == 0 ? 0 :
constantAdder.addConstant(clazz, arrayElementValue.u2elementNameIndex),
0,
arrayElementValue.u2elementValuesCount > 0 ?
new ElementValue[arrayElementValue.u2elementValuesCount] :
EMPTY_ELEMENT_VALUES);
newArrayElementValue.referencedClass = arrayElementValue.referencedClass;
newArrayElementValue.referencedMethod = arrayElementValue.referencedMethod;
arrayElementValue.elementValuesAccept(clazz,
annotation,
new ElementValueAdder(targetClass,
newArrayElementValue,
false));
// Add it to the target.
addElementValue(newArrayElementValue);
}
// Small utility methods.
private void addElementValue(ElementValue newElementValue)
{
// What's the target?
if (targetAnnotationDefaultAttribute != null)
{
// Simply set the completed element value.
targetAnnotationDefaultAttribute.defaultValue = newElementValue;
}
else
{
// Add it to the target.
elementValuesEditor.addElementValue(newElementValue);
}
}
}
|
