|
| 1 | +/* |
| 2 | + * Copyright (c) 2023, Oracle and/or its affiliates. All rights reserved. |
| 3 | + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | + * |
| 5 | + * This code is free software; you can redistribute it and/or modify it |
| 6 | + * under the terms of the GNU General Public License version 2 only, as |
| 7 | + * published by the Free Software Foundation. |
| 8 | + * |
| 9 | + * This code is distributed in the hope that it will be useful, but WITHOUT |
| 10 | + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 11 | + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 12 | + * version 2 for more details (a copy is included in the LICENSE file that |
| 13 | + * accompanied this code). |
| 14 | + * |
| 15 | + * You should have received a copy of the GNU General Public License version |
| 16 | + * 2 along with this work; if not, write to the Free Software Foundation, |
| 17 | + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 18 | + * |
| 19 | + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| 20 | + * or visit www.oracle.com if you need additional information or have any |
| 21 | + * questions. |
| 22 | + */ |
| 23 | + |
| 24 | +/* |
| 25 | + * @test |
| 26 | + * @bug 8302202 |
| 27 | + * @summary Testing record patterns with null components |
| 28 | + * @enablePreview |
| 29 | + * @compile NullsInDeconstructionPatterns2.java |
| 30 | + * @run main NullsInDeconstructionPatterns2 |
| 31 | + */ |
| 32 | + |
| 33 | +import java.util.Objects; |
| 34 | +import java.util.function.Function; |
| 35 | + |
| 36 | +public class NullsInDeconstructionPatterns2 { |
| 37 | + |
| 38 | + public static void main(String[] args) { |
| 39 | + new NullsInDeconstructionPatterns2().run(); |
| 40 | + } |
| 41 | + |
| 42 | + private void run() { |
| 43 | + run1(this::test1a); |
| 44 | + run1(this::test1b); |
| 45 | + run2(this::test2a); |
| 46 | + run2(this::test2b); |
| 47 | + run3(this::test3a); |
| 48 | + run3(this::test3b); |
| 49 | + run4(); |
| 50 | + } |
| 51 | + |
| 52 | + private void run1(Function<Object, String> method) { |
| 53 | + assertEquals("R1(null)", method.apply(new R1(null))); |
| 54 | + assertEquals("R1(!null)", method.apply(new R1(""))); |
| 55 | + } |
| 56 | + |
| 57 | + private void run2(Function<Object, String> method) { |
| 58 | + assertEquals("R2(null, null)", method.apply(new R2(null, null))); |
| 59 | + assertEquals("R2(!null, null)", method.apply(new R2("", null))); |
| 60 | + assertEquals("R2(null, !null)", method.apply(new R2(null, ""))); |
| 61 | + assertEquals("R2(!null, !null)", method.apply(new R2("", ""))); |
| 62 | + } |
| 63 | + |
| 64 | + private void run3(Function<Object, String> method) { |
| 65 | + assertEquals("R3(null, null, null)", method.apply(new R3(null, null, null))); |
| 66 | + assertEquals("R3(!null, null, null)", method.apply(new R3("", null, null))); |
| 67 | + assertEquals("R3(null, !null, null)", method.apply(new R3(null, "", null))); |
| 68 | + assertEquals("R3(!null, !null, null)", method.apply(new R3("", "", null))); |
| 69 | + assertEquals("R3(null, null, !null)", method.apply(new R3(null, null, ""))); |
| 70 | + assertEquals("R3(!null, null, !null)", method.apply(new R3("", null, ""))); |
| 71 | + assertEquals("R3(null, !null, !null)", method.apply(new R3(null, "", ""))); |
| 72 | + assertEquals("R3(!null, !null, !null)", method.apply(new R3("", "", ""))); |
| 73 | + } |
| 74 | + |
| 75 | + private void run4() { |
| 76 | + assertEquals("integer", test4(new R1(0))); |
| 77 | + assertEquals("empty", test4(new R1(""))); |
| 78 | + assertEquals("default", test4(new R1("a"))); |
| 79 | + } |
| 80 | + private String test1a(Object i) { |
| 81 | + return switch (i) { |
| 82 | + case R1(Object o) when o == null -> "R1(null)"; |
| 83 | + case R1(Object o) when o != null -> "R1(!null)"; |
| 84 | + default -> "default"; |
| 85 | + }; |
| 86 | + } |
| 87 | + |
| 88 | + private String test1b(Object i) { |
| 89 | + return switch (i) { |
| 90 | + case R1(Object o) when o == null -> "R1(null)"; |
| 91 | + case R1(Object o) -> "R1(!null)"; |
| 92 | + default -> "default"; |
| 93 | + }; |
| 94 | + } |
| 95 | + |
| 96 | + private String test2a(Object i) { |
| 97 | + return switch (i) { |
| 98 | + case R2(Object o1, Object o2) when o1 == null && o2 == null -> "R2(null, null)"; |
| 99 | + case R2(Object o1, Object o2) when o1 != null && o2 == null -> "R2(!null, null)"; |
| 100 | + case R2(Object o1, Object o2) when o1 == null && o2 != null -> "R2(null, !null)"; |
| 101 | + case R2(Object o1, Object o2) when o1 != null && o2 != null -> "R2(!null, !null)"; |
| 102 | + default -> "default"; |
| 103 | + }; |
| 104 | + } |
| 105 | + |
| 106 | + private String test2b(Object i) { |
| 107 | + return switch (i) { |
| 108 | + case R2(Object o1, Object o2) when o1 == null && o2 == null -> "R2(null, null)"; |
| 109 | + case R2(Object o1, Object o2) when o1 != null && o2 == null -> "R2(!null, null)"; |
| 110 | + case R2(Object o1, Object o2) when o1 == null && o2 != null -> "R2(null, !null)"; |
| 111 | + case R2(Object o1, Object o2) -> "R2(!null, !null)"; |
| 112 | + default -> "default"; |
| 113 | + }; |
| 114 | + } |
| 115 | + |
| 116 | + private String test3a(Object i) { |
| 117 | + return switch (i) { |
| 118 | + case R3(Object o1, Object o2, Object o3) when o1 == null && o2 == null && o3 == null -> "R3(null, null, null)"; |
| 119 | + case R3(Object o1, Object o2, Object o3) when o1 != null && o2 == null && o3 == null -> "R3(!null, null, null)"; |
| 120 | + case R3(Object o1, Object o2, Object o3) when o1 == null && o2 != null && o3 == null -> "R3(null, !null, null)"; |
| 121 | + case R3(Object o1, Object o2, Object o3) when o1 != null && o2 != null && o3 == null -> "R3(!null, !null, null)"; |
| 122 | + case R3(Object o1, Object o2, Object o3) when o1 == null && o2 == null && o3 != null -> "R3(null, null, !null)"; |
| 123 | + case R3(Object o1, Object o2, Object o3) when o1 != null && o2 == null && o3 != null -> "R3(!null, null, !null)"; |
| 124 | + case R3(Object o1, Object o2, Object o3) when o1 == null && o2 != null && o3 != null -> "R3(null, !null, !null)"; |
| 125 | + case R3(Object o1, Object o2, Object o3) when o1 != null && o2 != null && o3 != null -> "R3(!null, !null, !null)"; |
| 126 | + default -> "default"; |
| 127 | + }; |
| 128 | + } |
| 129 | + |
| 130 | + private String test3b(Object i) { |
| 131 | + return switch (i) { |
| 132 | + case R3(Object o1, Object o2, Object o3) when o1 == null && o2 == null && o3 == null -> "R3(null, null, null)"; |
| 133 | + case R3(Object o1, Object o2, Object o3) when o1 != null && o2 == null && o3 == null -> "R3(!null, null, null)"; |
| 134 | + case R3(Object o1, Object o2, Object o3) when o1 == null && o2 != null && o3 == null -> "R3(null, !null, null)"; |
| 135 | + case R3(Object o1, Object o2, Object o3) when o1 != null && o2 != null && o3 == null -> "R3(!null, !null, null)"; |
| 136 | + case R3(Object o1, Object o2, Object o3) when o1 == null && o2 == null && o3 != null -> "R3(null, null, !null)"; |
| 137 | + case R3(Object o1, Object o2, Object o3) when o1 != null && o2 == null && o3 != null -> "R3(!null, null, !null)"; |
| 138 | + case R3(Object o1, Object o2, Object o3) when o1 == null && o2 != null && o3 != null -> "R3(null, !null, !null)"; |
| 139 | + case R3(Object o1, Object o2, Object o3) -> "R3(!null, !null, !null)"; |
| 140 | + default -> "default"; |
| 141 | + }; |
| 142 | + } |
| 143 | + |
| 144 | + private String test4(Object i) { |
| 145 | + return switch (i) { |
| 146 | + case R1(Integer o) -> "integer"; |
| 147 | + case R1(Object o) when o.toString().isEmpty() -> "empty"; |
| 148 | + default -> "default"; |
| 149 | + }; |
| 150 | + } |
| 151 | + |
| 152 | + private static void assertEquals(String expected, String actual) { |
| 153 | + if (!Objects.equals(expected, actual)) { |
| 154 | + throw new AssertionError("Unexpected result, expected: " + expected + "," + |
| 155 | + " actual: " + actual); |
| 156 | + } |
| 157 | + } |
| 158 | + |
| 159 | + record R1(Object o) {} |
| 160 | + record R2(Object o1, Object o2) {} |
| 161 | + record R3(Object o1, Object o2, Object o3) {} |
| 162 | + |
| 163 | +} |
0 commit comments