1 /*
2 * Copyright (c) 2024, 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 * @modules jdk.incubator.code
27 * @run testng TestPatterns
28 * @enablePreview */
29
30 import org.testng.Assert;
31 import org.testng.annotations.Test;
32
33 import jdk.incubator.code.OpTransformer;
34 import jdk.incubator.code.dialect.core.CoreOp;
35 import jdk.incubator.code.Op;
36 import jdk.incubator.code.interpreter.Interpreter;
37
38 import java.lang.invoke.MethodHandles;
39 import java.lang.reflect.Method;
40 import jdk.incubator.code.CodeReflection;
41 import java.util.Optional;
42 import java.util.stream.Stream;
43
44 public class TestPatterns {
45
46 interface Point {
47 }
48
49 record ConcretePoint(int x, int y) implements Point {
50 }
51
52 enum Color {RED, GREEN, BLUE}
53
54 record ColoredPoint(ConcretePoint p, Color c) implements Point {
55 }
56
57 record Rectangle(Point upperLeft, Point lowerRight) {
58 }
59
60
61 @CodeReflection
62 public static String recordPatterns(Object r) {
63 if (r instanceof Rectangle(
64 ColoredPoint(ConcretePoint p, Color c),
65 ColoredPoint lr)) {
66 return p.toString();
67 } else {
68 return "";
69 }
70 }
71
72 @Test
73 public void testRecordPatterns() {
74 CoreOp.FuncOp f = getFuncOp("recordPatterns");
75
76 System.out.println(f.toText());
77
78 CoreOp.FuncOp lf = f.transform(OpTransformer.LOWERING_TRANSFORMER);
79
80 System.out.println(lf.toText());
81
82 {
83 Rectangle r = new Rectangle(
84 new ColoredPoint(new ConcretePoint(1, 2), Color.RED),
85 new ColoredPoint(new ConcretePoint(3, 4), Color.BLUE));
86 Assert.assertEquals(Interpreter.invoke(MethodHandles.lookup(), lf, r), recordPatterns(r));
87 }
88
89 {
90 Rectangle r = new Rectangle(
91 new ColoredPoint(new ConcretePoint(1, 2), Color.RED),
92 new ConcretePoint(3, 4));
93 Assert.assertEquals(Interpreter.invoke(MethodHandles.lookup(), lf, r), recordPatterns(r));
94 }
95
96 {
97 Rectangle r = new Rectangle(
98 new ConcretePoint(1, 2),
99 new ConcretePoint(3, 4));
100 Assert.assertEquals(Interpreter.invoke(MethodHandles.lookup(), lf, r), recordPatterns(r));
101 }
102
103 {
104 String r = "";;
105 Assert.assertEquals(Interpreter.invoke(MethodHandles.lookup(), lf, r), recordPatterns(r));
106 }
107 }
108
109 record R(Number n) {}
110
111 @CodeReflection
112 static boolean recordPatterns2(Object o) {
113 return o instanceof R(_);
114 }
115
116 @Test
117 void testRecordPattern2() {
118
119 CoreOp.FuncOp f = getFuncOp("recordPatterns2");
120 System.out.println(f.toText());
121
122 CoreOp.FuncOp lf = f.transform(OpTransformer.LOWERING_TRANSFORMER);
123 System.out.println(lf.toText());
124
125 Object[] objects = {new R(1), "str", null};
126 for (Object o : objects) {
127 Assert.assertEquals(Interpreter.invoke(MethodHandles.lookup(), lf, o), recordPatterns2(o));
128 }
129 }
130
131
132 static CoreOp.FuncOp getFuncOp(String name) {
133 Optional<Method> om = Stream.of(TestPatterns.class.getDeclaredMethods())
134 .filter(m -> m.getName().equals(name))
135 .findFirst();
136
137 Method m = om.get();
138 return Op.ofMethod(m).get();
139 }
140
141 }