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
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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 * @summary Check presence/absence of code model in annotated elements
27 * @library /tools/javac/lib
28 * @modules java.compiler
29 * jdk.compiler
30 * jdk.incubator.code
31 * @build JavacTestingAbstractProcessor TestElementReflection
32 * @compile -processor TestElementReflection -proc:only TestElementReflection.java
33 */
34
35 import jdk.incubator.code.Op;
36 import jdk.incubator.code.Reflect;
37 import jdk.incubator.code.dialect.core.CoreOp.FuncOp;
38
39 import java.util.Optional;
40 import java.util.Set;
41 import javax.annotation.processing.RoundEnvironment;
42 import javax.lang.model.element.*;
43
44 public class TestElementReflection extends JavacTestingAbstractProcessor {
45
46 @interface HasModel {
47 boolean value();
48 }
49
50 static class Test {
51 @HasModel(false)
52 Test() { } // constructor
53
54 @Reflect
55 @HasModel(true)
56 void member_reflectable() { } // reflectable class member
57
58 @HasModel(false)
59 void member() { } // class member
60
61 class Inner {
62 @Reflect
63 @HasModel(false)
64 void inner_member_reflectable() { } // reflectable inner class member
65
66 @HasModel(false)
67 void inner_member() { } // inner class member
68 }
69
70 static class Nested {
71 @Reflect
72 @HasModel(true)
73 void static_member_reflectable() { } // reflectable nested class member
74
75 @HasModel(false)
76 void static_member() { } // nested class member
77 }
78 }
79
80 public boolean process(Set<? extends TypeElement> annotations,
81 RoundEnvironment roundEnvironment) {
82 class Scan extends ElementScanner<Void,Void> {
83 @Override
84 public Void visitExecutable(ExecutableElement e, Void p) {
85 HasModel hasModel = e.getAnnotation(HasModel.class);
86 if (hasModel == null) {
87 return null; // skip
88 }
89 Optional<FuncOp> body = Op.ofElement(processingEnv, e);
90 if (body.isPresent() && !hasModel.value()) {
91 throw new AssertionError(String.format("Unexpected model found for unsupported element %s",
92 toExecutableElementString(e)));
93 } else if (body.isEmpty() && hasModel.value()) {
94 throw new AssertionError(String.format("Model not found for supported element %s",
95 toExecutableElementString(e)));
96 }
97 return null;
98 }
99 }
100 Scan scan = new Scan();
101 for (Element e : roundEnvironment.getRootElements()) {
102 scan.scan(e);
103 }
104 return true;
105 }
106
107 static String toExecutableElementString(ExecutableElement e) {
108 return e.getEnclosingElement() + "." + e;
109 }
110 }