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
|
/*
* Copyright (c) 2024, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @bug 8304487 8325257 8327683 8330387
* @summary Compiler Implementation for Primitive types in patterns, instanceof, and switch (Preview)
* @enablePreview
* @compile PrimitiveInstanceOfPatternOpWithTopLevelPatterns.java
* @run main/othervm PrimitiveInstanceOfPatternOpWithTopLevelPatterns
*/
public class PrimitiveInstanceOfPatternOpWithTopLevelPatterns {
public static final int qualI = 42;
public static void main(String[] args) {
assertEquals(true, qualifiedExprConversion());
assertEquals(true, identityPrimitiveConversion());
assertEquals(true, wideningPrimitiveConversion());
assertEquals(true, narrowingPrimitiveConversion());
assertEquals(true, wideningAndNarrowingPrimitiveConversion());
assertEquals(true, boxingConversion());
assertEquals(true, boxingAndWideningReferenceConversion());
assertEquals(true, unboxing());
assertEquals(true, unboxingWithObject());
assertEquals(true, wideningReferenceConversionUnboxing(42));
assertEquals(true, wideningReferenceConversionUnboxing2(Byte.valueOf((byte) 42)));
assertEquals(true, wideningReferenceConversionUnboxing3(0x1000000));
assertEquals(true, wideningReferenceConversionUnboxingAndWideningPrimitive(42));
assertEquals(true, unboxingAndWideningPrimitiveExact());
assertEquals(false, unboxingAndWideningPrimitiveNotExact());
assertEquals(true, unboxingWhenNullAndWideningPrimitive());
assertEquals(true, narrowingAndUnboxing());
assertEquals(true, patternExtractRecordComponent());
assertEquals(true, exprMethod());
assertEquals(true, exprStaticallyQualified());
}
public static boolean qualifiedExprConversion() {
return PrimitiveInstanceOfTypeComparisonOp.qualI instanceof int;
}
public static boolean identityPrimitiveConversion() {
int i = 42;
return i instanceof int ii;
}
public static boolean wideningPrimitiveConversion() {
byte b = (byte) 42;
short s = (short) 42;
char c = 'a';
return b instanceof int bb && s instanceof int ss && c instanceof int cc;
}
public static boolean narrowingPrimitiveConversion() {
long l_within_int_range = 42L;
long l_outside_int_range = 999999999999999999L;
return l_within_int_range instanceof int lw && !(l_outside_int_range instanceof int lo);
}
public static boolean wideningAndNarrowingPrimitiveConversion() {
byte b = (byte) 42;
byte b2 = (byte) -42;
char c = (char) 42;
return b instanceof char bb && c instanceof byte cc && !(b2 instanceof char b2b);
}
public static boolean boxingConversion() {
int i = 42;
return i instanceof Integer ii;
}
public static boolean boxingAndWideningReferenceConversion() {
int i = 42;
return i instanceof Object io &&
i instanceof Number in &&
i instanceof Comparable cc;
}
public static boolean unboxing() {
Integer i = Integer.valueOf(1);
return i instanceof int ii;
}
public static boolean unboxingWithObject() {
Object o1 = (int) 42;
Object o2 = (byte) 42;
return o1 instanceof int o1o &&
o2 instanceof byte o2o &&
!(o1 instanceof byte o1b &&
!(o2 instanceof int o2b ));
}
public static <T extends Integer> boolean wideningReferenceConversionUnboxing(T i) {
return i instanceof int ii;
}
public static <T extends Byte> boolean wideningReferenceConversionUnboxing2(T i) {
return i instanceof byte bb;
}
public static <T extends Integer> boolean wideningReferenceConversionUnboxing3(T i) {
return i instanceof float ff;
}
public static <T extends Integer> boolean wideningReferenceConversionUnboxingAndWideningPrimitive(T i) {
return i instanceof double ii;
}
public static boolean unboxingAndWideningPrimitiveExact() {
Byte b = Byte.valueOf((byte)42);
Short s = Short.valueOf((short)42);
Character c = Character.valueOf('a');
return (b instanceof int bb) && (s instanceof int ss) && (c instanceof int cc);
}
public static boolean unboxingAndWideningPrimitiveNotExact() {
int smallestIntNotRepresentable = 16777217; // 2^24 + 1
Integer i = Integer.valueOf(smallestIntNotRepresentable);
return i instanceof float ii;
}
public static boolean unboxingWhenNullAndWideningPrimitive() {
Byte b = null;
Short s = null;
Character c = null;
return !(b instanceof int bb) && !(s instanceof int ss) && !(c instanceof int cc);
}
public static boolean narrowingAndUnboxing() {
Number n = Byte.valueOf((byte) 42);
return n instanceof byte nn;
}
public record P(int i) { }
public static boolean patternExtractRecordComponent() {
Object p = new P(42);
if (p instanceof P(byte b)) {
return b == 42;
}
return false;
}
public static int meth() {return 42;}
public static boolean exprMethod() {
return meth() instanceof int ii;
}
public class A1 {
public static int i = 42;
}
public static boolean exprStaticallyQualified() {
return A1.i instanceof int ii;
}
static void assertEquals(boolean expected, boolean actual) {
if (expected != actual) {
throw new AssertionError("Expected: " + expected + ", actual: " + actual);
}
}
}
|
