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
|
/*
* Copyright 2000-2014 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jetbrains.java.decompiler.modules.decompiler.exps;
import org.jetbrains.java.decompiler.code.CodeConstants;
import org.jetbrains.java.decompiler.main.ClassesProcessor.ClassNode;
import org.jetbrains.java.decompiler.main.DecompilerContext;
import org.jetbrains.java.decompiler.main.rels.MethodWrapper;
import org.jetbrains.java.decompiler.modules.decompiler.ExprProcessor;
import org.jetbrains.java.decompiler.modules.decompiler.vars.VarVersionPaar;
import org.jetbrains.java.decompiler.struct.StructClass;
import org.jetbrains.java.decompiler.struct.consts.LinkConstant;
import org.jetbrains.java.decompiler.struct.gen.FieldDescriptor;
import org.jetbrains.java.decompiler.struct.gen.VarType;
import org.jetbrains.java.decompiler.util.InterpreterUtil;
import java.util.ArrayList;
import java.util.List;
public class FieldExprent extends Exprent {
private String name;
private String classname;
private boolean isStatic;
private Exprent instance;
private FieldDescriptor descriptor;
{
this.type = EXPRENT_FIELD;
}
public FieldExprent(LinkConstant cn, Exprent instance) {
this.instance = instance;
if (instance == null) {
isStatic = true;
}
classname = cn.classname;
name = cn.elementname;
descriptor = FieldDescriptor.parseDescriptor(cn.descriptor);
}
public FieldExprent(String name, String classname, boolean isStatic, Exprent instance, FieldDescriptor descriptor) {
this.name = name;
this.classname = classname;
this.isStatic = isStatic;
this.instance = instance;
this.descriptor = descriptor;
}
public VarType getExprType() {
return descriptor.type;
}
public int getExprentUse() {
if (instance == null) {
return Exprent.MULTIPLE_USES;
}
else {
return instance.getExprentUse() & Exprent.MULTIPLE_USES;
}
}
public List<Exprent> getAllExprents() {
List<Exprent> lst = new ArrayList<Exprent>();
if (instance != null) {
lst.add(instance);
}
return lst;
}
public Exprent copy() {
return new FieldExprent(name, classname, isStatic, instance == null ? null : instance.copy(), descriptor);
}
public String toJava(int indent) {
StringBuilder buf = new StringBuilder();
if (isStatic) {
ClassNode node = (ClassNode)DecompilerContext.getProperty(DecompilerContext.CURRENT_CLASS_NODE);
if (node == null || !classname.equals(node.classStruct.qualifiedName)) {
buf.append(DecompilerContext.getImportCollector().getShortName(ExprProcessor.buildJavaClassName(classname)));
buf.append(".");
}
}
else {
String super_qualifier = null;
if (instance != null && instance.type == Exprent.EXPRENT_VAR) {
VarExprent instvar = (VarExprent)instance;
VarVersionPaar varpaar = new VarVersionPaar(instvar);
MethodWrapper current_meth = (MethodWrapper)DecompilerContext.getProperty(DecompilerContext.CURRENT_METHOD_WRAPPER);
if (current_meth != null) { // FIXME: remove
String this_classname = current_meth.varproc.getThisvars().get(varpaar);
if (this_classname != null) {
if (!classname.equals(this_classname)) { // TODO: direct comparison to the super class?
super_qualifier = this_classname;
}
}
}
}
if (super_qualifier != null) {
StructClass current_class = ((ClassNode)DecompilerContext.getProperty(DecompilerContext.CURRENT_CLASS_NODE)).classStruct;
if (!super_qualifier.equals(current_class.qualifiedName)) {
buf.append(DecompilerContext.getImportCollector().getShortName(ExprProcessor.buildJavaClassName(super_qualifier)));
buf.append(".");
}
buf.append("super");
}
else {
StringBuilder buff = new StringBuilder();
boolean casted = ExprProcessor.getCastedExprent(instance, new VarType(CodeConstants.TYPE_OBJECT, 0, classname), buff, indent, true);
String res = buff.toString();
if (casted || instance.getPrecedence() > getPrecedence()) {
res = "(" + res + ")";
}
buf.append(res);
}
if (buf.toString().equals(
VarExprent.VAR_NAMELESS_ENCLOSURE)) { // FIXME: workaround for field access of an anonymous enclosing class. Find a better way.
buf.setLength(0);
}
else {
buf.append(".");
}
}
buf.append(name);
return buf.toString();
}
public boolean equals(Object o) {
if (o == this) return true;
if (o == null || !(o instanceof FieldExprent)) return false;
FieldExprent ft = (FieldExprent)o;
return InterpreterUtil.equalObjects(name, ft.getName()) &&
InterpreterUtil.equalObjects(classname, ft.getClassname()) &&
isStatic == ft.isStatic() &&
InterpreterUtil.equalObjects(instance, ft.getInstance()) &&
InterpreterUtil.equalObjects(descriptor, ft.getDescriptor());
}
public void replaceExprent(Exprent oldexpr, Exprent newexpr) {
if (oldexpr == instance) {
instance = newexpr;
}
}
public String getClassname() {
return classname;
}
public FieldDescriptor getDescriptor() {
return descriptor;
}
public Exprent getInstance() {
return instance;
}
public boolean isStatic() {
return isStatic;
}
public String getName() {
return name;
}
}
|
