jdk

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/*
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 * Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 */
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 /*
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 * @test
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 * @summary test for com.sun.tools.javac.comp.Check::validateAnnotation, com.sun.tools.javac.code.SymbolMetadata::removeDeclarationMetadata and ::removeFromCompoundList
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 * @bug 8241312 8246774
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 * @library /tools/lib
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 * @enablePreview
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 * @modules jdk.compiler/com.sun.tools.javac.util
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 *          java.base/jdk.internal.classfile.impl
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 * @run main ApplicableAnnotationsOnRecords
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 */
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import java.lang.classfile.*;
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import com.sun.tools.javac.util.Assert;
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import java.lang.annotation.*;
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import java.io.InputStream;
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import java.util.Objects;
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@Retention(RetentionPolicy.RUNTIME)
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@Target({ElementType.FIELD})
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@interface FieldAnnotation {
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}
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@Retention(RetentionPolicy.RUNTIME)
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@Target({ElementType.METHOD})
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@interface MethodAnnotation {
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}
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@Retention(RetentionPolicy.RUNTIME)
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@Target({ElementType.PARAMETER})
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@interface ParameterAnnotation {
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}
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public record ApplicableAnnotationsOnRecords(@FieldAnnotation @MethodAnnotation @ParameterAnnotation String s, @FieldAnnotation @MethodAnnotation @ParameterAnnotation int i) {
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    public static void main(String... args) throws Exception {
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        try ( InputStream in = ApplicableAnnotationsOnRecords.class.getResourceAsStream("ApplicableAnnotationsOnRecords.class")) {
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            ClassModel cm = ClassFile.of().parse(Objects.requireNonNull(in).readAllBytes());
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            Assert.check(cm.methods().size() > 5);
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            for (MethodModel mm : cm.methods()) {
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                String methodName = mm.methodName().stringValue();
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                if (methodName.equals("toString") || methodName.equals("hashCode") || methodName.equals("equals") || methodName.equals("main")) {
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                    // ignore
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                } else if (methodName.equals("<init>")) {
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                    var paAnnos = mm.findAttribute(Attributes.runtimeVisibleParameterAnnotations()).orElseThrow().parameterAnnotations();
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                    Assert.check(paAnnos.size() > 0);
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                    for (var pa : paAnnos) {
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                        Assert.check(pa.size() == 1);
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                        Assert.check(Objects.equals(pa.get(0).classSymbol().descriptorString(), "LParameterAnnotation;"));
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                    }
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                } else {
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                    var annos = mm.findAttribute(Attributes.runtimeVisibleAnnotations()).orElseThrow().annotations();
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                    Assert.check(annos.size() == 1);
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                    Assert.check(Objects.equals(annos.get(0).classSymbol().descriptorString(), "LMethodAnnotation;"));
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                }
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            }
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            Assert.check(cm.fields().size() > 0);
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            for (FieldModel fm : cm.fields()) {
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                var annos = fm.findAttribute(Attributes.runtimeVisibleAnnotations()).orElseThrow().annotations();
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                Assert.check(annos.size() == 1);
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                Assert.check(Objects.equals(annos.getFirst().classSymbol().descriptorString(), "LFieldAnnotation;"));
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            }
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        }
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    }
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}
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