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
|
/**
* @test
* @compile/fail/ref=SimpleDeconstructionPatternOld.out --release 20 -XDrawDiagnostics SimpleDeconstructionPattern.java
* @compile SimpleDeconstructionPattern.java
* @run main SimpleDeconstructionPattern
*/
import java.util.ArrayList;
import java.util.Arrays;
import java.util.LinkedList;
import java.util.List;
public class SimpleDeconstructionPattern {
public static void main(String... args) throws Throwable {
if (!test2(new P(42))) {
throw new IllegalStateException();
}
if (test2(new P(41))) {
throw new IllegalStateException();
}
if (!test2a(new P(42))) {
throw new IllegalStateException();
}
if (test2a(new P(41))) {
throw new IllegalStateException();
}
if (!test4(new P2(new P(42), ""))) {
throw new IllegalStateException();
}
if (test4(new P2(new P(41), ""))) {
throw new IllegalStateException();
}
if (test4(new P2(new P(42), "a"))) {
throw new IllegalStateException();
}
if (!test5(new P(42))) {
throw new IllegalStateException();
}
if (test5(new P(41))) {
throw new IllegalStateException();
}
if (!test7(new P3(""))) {
throw new IllegalStateException();
}
if (test7(new P3("a"))) {
throw new IllegalStateException();
}
if (!test7a(new P3(""))) {
throw new IllegalStateException();
}
if (test7a(new P3("a"))) {
throw new IllegalStateException();
}
if (test8(new P4(""))) {
throw new IllegalStateException();
}
if (!test8(new P4(new P3("")))) {
throw new IllegalStateException();
}
if (!test8a(new P4(new P3("")))) {
throw new IllegalStateException();
}
if (test8(new P4(new P3("a")))) {
throw new IllegalStateException();
}
if (test8a(new P4(new P3("a")))) {
throw new IllegalStateException();
}
if (!test9(new P5(new ArrayList<String>(Arrays.asList(""))))) {
throw new IllegalStateException();
}
if (test9(new P5(new LinkedList<String>(Arrays.asList(""))))) {
throw new IllegalStateException();
}
if (testA(new P6(null))) {
throw new IllegalStateException();
}
if (!testA(new P6(new P3(null)))) {
throw new IllegalStateException();
}
if (testB(new P6(null))) {
throw new IllegalStateException();
}
if (!testB(new P6(new P3(null)))) {
throw new IllegalStateException();
}
if (testC(new P6(null))) {
throw new IllegalStateException();
}
if (!testC(new P6(new P3("")))) {
throw new IllegalStateException();
}
if (!testE(new P6(new P3(null)))) {
throw new IllegalStateException();
}
if (!testF(new P7(0, (short) 0))) {
throw new IllegalStateException();
}
if (testF(new P7(0, (short) 1))) {
throw new IllegalStateException();
}
if (testGen3(new GenRecord1<>(3L, ""))) {
throw new IllegalStateException();
}
if (!testGen3(new GenRecord1<>(3, ""))) {
throw new IllegalStateException();
}
if (!testGen3(new GenRecord1<>(3, ""))) {
throw new IllegalStateException();
}
if (!I.testInInterface(new P2(new P(0), ""))) {
throw new IllegalStateException();
}
}
private static void exp(Object o) throws Throwable {
if (o instanceof P(var i)) {
System.err.println("i=" + i);
}
}
private static boolean test2(Object o) throws Throwable {
return o instanceof P(var i) && i == 42;
}
private static boolean test2a(Object o) throws Throwable {
return o instanceof P(int i) && i == 42;
}
private static boolean test4(Object o) throws Throwable {
return o instanceof P2(P(var i), var s) && i == 42 && "".equals(s);
}
private static boolean test5(Object o) throws Throwable {
return o instanceof P(var i) && i == 42;
}
private static boolean test7(Object o) throws Throwable {
return o instanceof P3(var s) && "".equals(s);
}
private static boolean test7a(Object o) throws Throwable {
return o instanceof P3(String s) && "".equals(s);
}
private static boolean test8(Object o) throws Throwable {
return o instanceof P4(P3(var s)) && "".equals(s);
}
private static boolean test8a(Object o) throws Throwable {
return o instanceof P4(P3(String s)) && "".equals(s);
}
private static boolean test9(Object o) throws Throwable {
return o instanceof P5(ArrayList<String> l) && !l.isEmpty();
}
private static boolean testA(Object o) throws Throwable {
return o instanceof P6(P3(var s));
}
private static boolean testB(Object o) throws Throwable {
return o instanceof P6(P3(String s));
}
private static boolean testC(Object o) throws Throwable {
return o instanceof P6(P3(String s)) && s.isEmpty();
}
private static boolean testE(Object o) throws Throwable {
return o instanceof P6(P3(String s)) && s == null;
}
private static boolean testF(Object o) throws Throwable {
return o instanceof P7(int i, short s) && i == s;
}
private static boolean testGen3(Object o) throws Throwable {
return o instanceof GenRecord1<?, ?>(Integer i, var s) && i.intValue() == 3 && s.length() == 0;
}
private static boolean testGen4(GenBase<Integer, String> o) throws Throwable {
return o instanceof GenRecord1<Integer, String>(var i, var s) && i.intValue() == 3 && s.length() == 0;
}
interface I {
public static boolean testInInterface(Object o) {
return o instanceof P2(P(int i), var s) && i == 0;
}
}
public record P(int i) {
}
public record P2(P p, String s) {
}
public record P3(String s) {
}
public record P4(Object o) {}
public record P5(List<String> l) {}
public record P6(P3 p) {}
public record P7(int i, short s) {}
public interface Base {}
public record BaseUse(Base b) {}
public record BaseSubclass(int i) implements Base {}
public interface GenBase<T1, T2 extends CharSequence> {}
public record GenRecord1<T1, T2 extends CharSequence> (T1 i, T2 s) implements GenBase<T1, T2> {}
}
|
