1 /*
 2  * Copyright (c) 2026, 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  import java.lang.reflect.Method;
25  import java.util.Arrays;
26  import jdk.incubator.code.Reflect;
27 
28 /*
29  * @test
30  * @summary Verify reflected bridge generation
31  * @modules jdk.incubator.code
32  * @build BridgeTest
33  * @build CodeReflectionTester
34  * @run main BridgeTest
35  * @run main CodeReflectionTester BridgeTest$StringValue
36  */
37 public class BridgeTest {
38 
39     interface Value<T> {
40         T value();
41     }
42 
43     static final class StringValue implements Value<String> {
44         @Override
45         @Reflect
46         @IR("""
47             func @"value" (%0 : java.type:"BridgeTest$StringValue")java.type:"java.lang.String" -> {
48                 %1 : java.type:"java.lang.String" = constant @"string value";
49                 return %1;
50             };
51             """)
52         public String value() {
53             return "string value";
54         }
55     }
56 
57     public static void main(String[] args) throws Exception {
58         var val = new StringValue().value();
59         if (!"string value".equals(val)) {
60             throw new AssertionError("Unexpected bridge invocation result: " + val);
61         }
62         Method bridge = Arrays.stream(StringValue.class.getDeclaredMethods())
63                               .filter(Method::isBridge)
64                               .findFirst()
65                               .orElseThrow();
66         if (bridge.getReturnType() != Object.class) {
67             throw new AssertionError("Unexpected bridge return type: " + bridge.getReturnType());
68         }
69     }
70 }