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
|
// Copyright (c) 2017, the R8 project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
package com.android.tools.r8.graph;
import com.android.tools.r8.dex.IndexedItemCollection;
public class DexMethodHandle extends IndexedDexItem {
public enum MethodHandleType {
// Method handle dex type.
STATIC_PUT((short) 0x00),
STATIC_GET((short) 0x01),
INSTANCE_PUT((short) 0x02),
INSTANCE_GET((short) 0x03),
INVOKE_STATIC((short) 0x04),
INVOKE_INSTANCE((short) 0x05),
// Upcoming method handle dex type.
INVOKE_CONSTRUCTOR((short) 0x06),
// Internal method handle needed by lambda desugaring.
INVOKE_INTERFACE((short) 0x07),
INVOKE_SUPER((short) 0x08);
private final short value;
MethodHandleType(short value) {
this.value = value;
}
public short getValue() {
return value;
}
public static MethodHandleType getKind(int value) {
MethodHandleType kind;
switch (value) {
case 0x00:
kind = STATIC_PUT;
break;
case 0x01:
kind = STATIC_GET;
break;
case 0x02:
kind = INSTANCE_PUT;
break;
case 0x03:
kind = INSTANCE_GET;
break;
case 0x04:
kind = INVOKE_STATIC;
break;
case 0x05:
kind = INVOKE_INSTANCE;
break;
case 0x06:
kind = INVOKE_CONSTRUCTOR;
break;
case 0x07:
kind = INVOKE_INTERFACE;
break;
case 0x08:
kind = INVOKE_SUPER;
break;
default:
throw new AssertionError();
}
assert kind.getValue() == value;
return kind;
}
public boolean isFieldType() {
return isStaticPut() || isStaticGet() || isInstancePut() || isInstanceGet();
}
public boolean isMethodType() {
return isInvokeStatic() || isInvokeInstance() || isInvokeInterface() || isInvokeSuper()
|| isInvokeConstructor();
}
public boolean isStaticPut() {
return this == MethodHandleType.STATIC_PUT;
}
public boolean isStaticGet() {
return this == MethodHandleType.STATIC_GET;
}
public boolean isInstancePut() {
return this == MethodHandleType.INSTANCE_PUT;
}
public boolean isInstanceGet() {
return this == MethodHandleType.INSTANCE_GET;
}
public boolean isInvokeStatic() {
return this == MethodHandleType.INVOKE_STATIC;
}
public boolean isInvokeInstance() {
return this == MethodHandleType.INVOKE_INSTANCE;
}
public boolean isInvokeInterface() {
return this == MethodHandleType.INVOKE_INTERFACE;
}
public boolean isInvokeSuper() {
return this == MethodHandleType.INVOKE_SUPER;
}
public boolean isInvokeConstructor() {
return this == MethodHandleType.INVOKE_CONSTRUCTOR;
}
}
public MethodHandleType type;
public Descriptor<? extends DexItem, ? extends Descriptor> fieldOrMethod;
public DexMethodHandle(
MethodHandleType type, Descriptor<? extends DexItem, ? extends Descriptor> fieldOrMethod) {
this.type = type;
this.fieldOrMethod = fieldOrMethod;
}
public int computeHashCode() {
return type.hashCode() + fieldOrMethod.computeHashCode() * 7;
}
public boolean computeEquals(Object other) {
if (other instanceof DexMethodHandle) {
DexMethodHandle o = (DexMethodHandle) other;
return type.equals(o.type) && fieldOrMethod.computeEquals(o.fieldOrMethod);
}
return false;
}
public String toString() {
StringBuilder builder = new StringBuilder("MethodHandle: {")
.append(type)
.append(", ")
.append(fieldOrMethod.toSourceString())
.append("}");
return builder.toString();
}
@Override
public void collectIndexedItems(IndexedItemCollection indexedItems) {
if (indexedItems.addMethodHandle(this)) {
fieldOrMethod.collectIndexedItems(indexedItems);
}
}
@Override
public int getOffset(ObjectToOffsetMapping mapping) {
return mapping.getOffsetFor(this);
}
// TODO(mikaelpeltier): Adapt syntax when invoke-custom will be available into smali.
public String toSmaliString() {
return toString();
}
public boolean isFieldHandle() {
return type.isFieldType();
}
public boolean isMethodHandle() {
return type.isMethodType();
}
public boolean isStaticHandle() {
return type.isStaticPut() || type.isStaticGet() || type.isInvokeStatic();
}
public DexMethod asMethod() {
assert isMethodHandle();
return (DexMethod) fieldOrMethod;
}
public DexField asField() {
assert isFieldHandle();
return (DexField) fieldOrMethod;
}
}
|
