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.  Oracle designates this
 8  * particular file as subject to the "Classpath" exception as provided
 9  * by Oracle in the LICENSE file that accompanied this code.
10  *
11  * This code is distributed in the hope that it will be useful, but WITHOUT
12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14  * version 2 for more details (a copy is included in the LICENSE file that
15  * accompanied this code).
16  *
17  * You should have received a copy of the GNU General Public License version
18  * 2 along with this work; if not, write to the Free Software Foundation,
19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20  *
21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22  * or visit www.oracle.com if you need additional information or have any
23  * questions.
24  */
25 package java.lang.classfile.attribute;
26 
27 import java.lang.classfile.constantpool.Utf8Entry;
28 import java.lang.constant.ClassDesc;
29 import java.util.Arrays;
30 import java.util.List;
31 
32 import java.lang.classfile.Attribute;
33 import java.lang.classfile.ClassElement;
34 import java.lang.classfile.constantpool.ClassEntry;
35 import jdk.internal.classfile.impl.BoundAttribute;
36 import jdk.internal.classfile.impl.UnboundAttribute;
37 import jdk.internal.classfile.impl.Util;
38 import jdk.internal.javac.PreviewFeature;
39 
40 /**
41  *  <p><b>This is NOT part of any supported API.
42  *  If you write code that depends on this, you do so at your own risk.
43  *  This code and its internal interfaces are subject to change or
44  *  deletion without notice.</b>
45  */
46 @PreviewFeature(feature = PreviewFeature.Feature.CLASSFILE_API)
47 public sealed interface LoadableDescriptorsAttribute
48         extends Attribute<LoadableDescriptorsAttribute>, ClassElement
49         permits BoundAttribute.BoundLoadableDescriptorsAttribute, UnboundAttribute.UnboundLoadableDescriptorsAttribute {
50 
51     /**
52      * {@return the list of loadable descriptors}
53      */
54     List<Utf8Entry> loadableDescriptors();
55 
56     /**
57      * {@return a {@code LoadableDescriptors} attribute}
58      * @param loadableDescriptors the loadable descriptors
59      */
60     static LoadableDescriptorsAttribute of(List<Utf8Entry> loadableDescriptors) {
61         return new UnboundAttribute.UnboundLoadableDescriptorsAttribute(loadableDescriptors);
62     }
63 
64     /**
65      * {@return a {@code LoadableDescriptors} attribute}
66      * @param loadableDescriptors the loadable descriptors
67      */
68     static LoadableDescriptorsAttribute of(Utf8Entry... loadableDescriptors) {
69         return of(List.of(loadableDescriptors));
70     }
71 }