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
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
|
// Copyright 2018 The Bazel Authors. All rights reserved.
//
// 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 com.google.devtools.build.android.desugar;
import static com.google.common.truth.Truth.assertThat;
import com.google.common.collect.ImmutableList;
import java.util.Collection;
import java.util.Comparator;
import java.util.Map;
import java.util.concurrent.ConcurrentMap;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
import org.objectweb.asm.Opcodes;
@RunWith(JUnit4.class)
public class CoreLibrarySupportTest {
@Test
public void testIsRenamedCoreLibrary() throws Exception {
CoreLibrarySupport support =
new CoreLibrarySupport(
new CoreLibraryRewriter(""), null, ImmutableList.of("java/time/"), ImmutableList.of());
assertThat(support.isRenamedCoreLibrary("java/time/X")).isTrue();
assertThat(support.isRenamedCoreLibrary("java/time/y/X")).isTrue();
assertThat(support.isRenamedCoreLibrary("java/io/X")).isFalse();
assertThat(support.isRenamedCoreLibrary("java/io/X$$CC")).isTrue();
assertThat(support.isRenamedCoreLibrary("java/io/X$$Lambda$17")).isTrue();
assertThat(support.isRenamedCoreLibrary("com/google/X")).isFalse();
}
@Test
public void testIsRenamedCoreLibrary_prefixedLoader() throws Exception {
CoreLibrarySupport support =
new CoreLibrarySupport(
new CoreLibraryRewriter("__/"),
null,
ImmutableList.of("java/time/"),
ImmutableList.of());
assertThat(support.isRenamedCoreLibrary("__/java/time/X")).isTrue();
assertThat(support.isRenamedCoreLibrary("__/java/time/y/X")).isTrue();
assertThat(support.isRenamedCoreLibrary("__/java/io/X")).isFalse();
assertThat(support.isRenamedCoreLibrary("__/java/io/X$$CC")).isTrue();
assertThat(support.isRenamedCoreLibrary("__/java/io/X$$Lambda$17")).isTrue();
assertThat(support.isRenamedCoreLibrary("com/google/X")).isFalse();
}
@Test
public void testRenameCoreLibrary() throws Exception {
CoreLibrarySupport support =
new CoreLibrarySupport(
new CoreLibraryRewriter(""), null, ImmutableList.of(), ImmutableList.of());
assertThat(support.renameCoreLibrary("java/time/X")).isEqualTo("j$/time/X");
assertThat(support.renameCoreLibrary("com/google/X")).isEqualTo("com/google/X");
}
@Test
public void testRenameCoreLibrary_prefixedLoader() throws Exception {
CoreLibrarySupport support =
new CoreLibrarySupport(
new CoreLibraryRewriter("__/"), null, ImmutableList.of(), ImmutableList.of());
assertThat(support.renameCoreLibrary("__/java/time/X")).isEqualTo("j$/time/X");
assertThat(support.renameCoreLibrary("com/google/X")).isEqualTo("com/google/X");
}
@Test
public void testIsEmulatedCoreClassOrInterface() throws Exception {
CoreLibrarySupport support =
new CoreLibrarySupport(
new CoreLibraryRewriter(""),
Thread.currentThread().getContextClassLoader(),
ImmutableList.of("java/util/concurrent/"),
ImmutableList.of("java/util/Map"));
assertThat(support.isEmulatedCoreClassOrInterface("java/util/Map")).isTrue();
assertThat(support.isEmulatedCoreClassOrInterface("java/util/Map$$Lambda$17")).isFalse();
assertThat(support.isEmulatedCoreClassOrInterface("java/util/Map$$CC")).isFalse();
assertThat(support.isEmulatedCoreClassOrInterface("java/util/HashMap")).isTrue();
assertThat(support.isEmulatedCoreClassOrInterface("java/util/concurrent/ConcurrentMap"))
.isFalse(); // false for renamed prefixes
assertThat(support.isEmulatedCoreClassOrInterface("com/google/Map")).isFalse();
}
@Test
public void testGetCoreInterfaceRewritingTarget_emulatedDefaultMethod() throws Exception {
CoreLibrarySupport support =
new CoreLibrarySupport(
new CoreLibraryRewriter(""),
Thread.currentThread().getContextClassLoader(),
ImmutableList.of(),
ImmutableList.of("java/util/Collection"));
assertThat(
support.getCoreInterfaceRewritingTarget(
Opcodes.INVOKEINTERFACE,
"java/util/Collection",
"removeIf",
"(Ljava/util/function/Predicate;)Z",
true))
.isEqualTo(Collection.class);
assertThat(
support.getCoreInterfaceRewritingTarget(
Opcodes.INVOKEVIRTUAL,
"java/util/ArrayList",
"removeIf",
"(Ljava/util/function/Predicate;)Z",
false))
.isEqualTo(Collection.class);
assertThat(
support.getCoreInterfaceRewritingTarget(
Opcodes.INVOKEINTERFACE,
"com/google/HypotheticalListInterface",
"removeIf",
"(Ljava/util/function/Predicate;)Z",
true))
.isNull();
}
@Test
public void testGetCoreInterfaceRewritingTarget_abstractMethod() throws Exception {
CoreLibrarySupport support =
new CoreLibrarySupport(
new CoreLibraryRewriter(""),
Thread.currentThread().getContextClassLoader(),
ImmutableList.of(),
ImmutableList.of("java/util/Collection"));
assertThat(
support.getCoreInterfaceRewritingTarget(
Opcodes.INVOKEINTERFACE,
"java/util/Collection",
"size",
"()I",
true))
.isNull();
assertThat(
support.getCoreInterfaceRewritingTarget(
Opcodes.INVOKEVIRTUAL,
"java/util/ArrayList",
"size",
"()I",
false))
.isNull();
}
@Test
public void testGetCoreInterfaceRewritingTarget_emulatedDefaultOverride() throws Exception {
CoreLibrarySupport support =
new CoreLibrarySupport(
new CoreLibraryRewriter(""),
Thread.currentThread().getContextClassLoader(),
ImmutableList.of(),
ImmutableList.of("java/util/Map"));
assertThat(
support.getCoreInterfaceRewritingTarget(
Opcodes.INVOKEINTERFACE,
"java/util/Map",
"putIfAbsent",
"(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;",
true))
.isEqualTo(Map.class);
assertThat(
support.getCoreInterfaceRewritingTarget(
Opcodes.INVOKEINTERFACE,
"java/util/concurrent/ConcurrentMap",
"putIfAbsent",
"(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;",
true))
.isNull(); // putIfAbsent is default in Map but abstract in ConcurrentMap
assertThat(
support.getCoreInterfaceRewritingTarget(
Opcodes.INVOKEINTERFACE,
"java/util/concurrent/ConcurrentMap",
"getOrDefault",
"(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;",
true))
.isEqualTo(ConcurrentMap.class); // conversely, getOrDefault is overridden as default method
}
@Test
public void testGetCoreInterfaceRewritingTarget_staticInterfaceMethod() throws Exception {
CoreLibrarySupport support =
new CoreLibrarySupport(
new CoreLibraryRewriter(""),
Thread.currentThread().getContextClassLoader(),
ImmutableList.of(),
ImmutableList.of("java/util/Comparator"));
assertThat(
support.getCoreInterfaceRewritingTarget(
Opcodes.INVOKESTATIC,
"java/util/Comparator",
"reverseOrder",
"()Ljava/util/Comparator;",
true))
.isEqualTo(Comparator.class);
}
/**
* Tests that call sites of renamed core libraries are treated like call sites in regular
* {@link InterfaceDesugaring}.
*/
@Test
public void testGetEmulatedCoreLibraryInvocationTarget_renamed() throws Exception {
CoreLibrarySupport support =
new CoreLibrarySupport(
new CoreLibraryRewriter(""),
Thread.currentThread().getContextClassLoader(),
ImmutableList.of("java/util/"),
ImmutableList.of());
// regular invocations of default methods: ignored
assertThat(
support.getCoreInterfaceRewritingTarget(
Opcodes.INVOKEINTERFACE,
"java/util/Collection",
"removeIf",
"(Ljava/util/function/Predicate;)Z",
true))
.isNull();
assertThat(
support.getCoreInterfaceRewritingTarget(
Opcodes.INVOKEVIRTUAL,
"java/util/ArrayList",
"removeIf",
"(Ljava/util/function/Predicate;)Z",
false))
.isNull();
// abstract methods: ignored
assertThat(
support.getCoreInterfaceRewritingTarget(
Opcodes.INVOKEINTERFACE,
"java/util/Collection",
"size",
"()I",
true))
.isNull();
// static interface method
assertThat(
support.getCoreInterfaceRewritingTarget(
Opcodes.INVOKESTATIC,
"java/util/Comparator",
"reverseOrder",
"()Ljava/util/Comparator;",
true))
.isEqualTo(Comparator.class);
// invokespecial for default methods: find nearest definition
assertThat(
support.getCoreInterfaceRewritingTarget(
Opcodes.INVOKESPECIAL,
"java/util/List",
"removeIf",
"(Ljava/util/function/Predicate;)Z",
true))
.isEqualTo(Collection.class);
// invokespecial on a class: ignore (even if there's an inherited default method)
assertThat(
support.getCoreInterfaceRewritingTarget(
Opcodes.INVOKESPECIAL,
"java/util/ArrayList",
"removeIf",
"(Ljava/util/function/Predicate;)Z",
false))
.isNull();
}
@Test
public void testGetCoreInterfaceRewritingTarget_ignoreRenamedInvokeInterface() throws Exception {
CoreLibrarySupport support =
new CoreLibrarySupport(
new CoreLibraryRewriter(""),
Thread.currentThread().getContextClassLoader(),
ImmutableList.of("java/util/concurrent/"), // should return null for these
ImmutableList.of("java/util/Map"));
assertThat(
support.getCoreInterfaceRewritingTarget(
Opcodes.INVOKEINTERFACE,
"java/util/Map",
"getOrDefault",
"(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;",
true))
.isEqualTo(Map.class);
assertThat(
support.getCoreInterfaceRewritingTarget(
Opcodes.INVOKEINTERFACE,
"java/util/concurrent/ConcurrentMap",
"getOrDefault",
"(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;",
true))
.isNull();
}
}
|
