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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * particular file as subject to the "Classpath" exception as provided
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 * 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).
 *
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package java.lang.classfile.constantpool;

import java.lang.classfile.TypeKind;
import java.lang.constant.ConstantDesc;

import jdk.internal.javac.PreviewFeature;

/**
 * Marker interface for constant pool entries suitable for loading via the
 * {@code LDC} instructions.
 *
 * @sealedGraph
 * @since 22
 */
@PreviewFeature(feature = PreviewFeature.Feature.CLASSFILE_API)
public sealed interface LoadableConstantEntry extends PoolEntry
        permits ClassEntry, ConstantDynamicEntry, ConstantValueEntry, MethodHandleEntry, MethodTypeEntry {

    /**
     * {@return the constant described by this entry}
     */
    ConstantDesc constantValue();

    /**
     * {@return the type of the constant}
     */
    default TypeKind typeKind() {
        return TypeKind.REFERENCE;
    }
}