src/java.base/share/classes/java/lang/classfile/constantpool/DynamicConstantPoolEntry.java - master - githubmirror/jdk22

src/java.base/share/classes/java/lang/classfile/constantpool/DynamicConstantPoolEntry.java

70 строк2 KB

Adam Sotona

8308753: Class-File API transition to Preview

04 дек 2023, 10:07

04 дек 2023, 10:072b00ac0

/*
 * Copyright (c) 2022, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */
package java.lang.classfile.constantpool;

import java.lang.classfile.BootstrapMethodEntry;
import jdk.internal.javac.PreviewFeature;

/**
 * Models a dynamic constant pool entry, which is either {@link ConstantDynamicEntry}
 * or {@link InvokeDynamicEntry}.
 * @jvms 4.4.10 The CONSTANT_Dynamic_info and CONSTANT_InvokeDynamic_info Structures
 *
 * @sealedGraph
 * @since 22
 */
@PreviewFeature(feature = PreviewFeature.Feature.CLASSFILE_API)
public sealed interface DynamicConstantPoolEntry extends PoolEntry
        permits ConstantDynamicEntry, InvokeDynamicEntry {

    /**
     * {@return the entry in the bootstrap method table for this constant}
     */
    BootstrapMethodEntry bootstrap();

    /**
     * {@return index of the entry in the bootstrap method table for this constant}
     */
    int bootstrapMethodIndex();

    /**
     * {@return the invocation name and type}
     */
    NameAndTypeEntry nameAndType();

    /**
     * {@return the invocation name}
     */
    default Utf8Entry name() {
        return nameAndType().name();
    }

    /**
     * {@return the invocation type}
     */
    default Utf8Entry type() {
        return nameAndType().type();
    }
}