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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
 * by Oracle in the LICENSE file that accompanied this code.
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * accompanied this code).
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package java.lang.classfile.attribute;

import java.lang.classfile.*;
import java.lang.classfile.AttributeMapper.AttributeStability;

import jdk.internal.classfile.impl.BoundAttribute;
import jdk.internal.classfile.impl.UnboundAttribute;

/**
 * Models the {@link Attributes#deprecated() Deprecated} attribute (JVMS {@jvms
 * 4.7.15}), which indicates this structure has been superseded.
 * <p>
 * This attribute can appear on classes, methods, and fields, and permits
 * {@linkplain AttributeMapper#allowMultiple multiple instances} in a structure.
 * It has {@linkplain AttributeStability#STATELESS no data dependency}.
 * <p>
 * This attribute was introduced in the Java SE Platform version 1.1, major
 * version {@value ClassFile#JAVA_1_VERSION}.
 *
 * @apiNote
 * When this attribute is present, the {@link Deprecated} annotation should
 * also be present in the {@link RuntimeVisibleAnnotationsAttribute
 * RuntimeVisibleAnnotations} attribute to provide more obvious alerts.
 * The reference implementation of the system Java compiler emits this attribute
 * without the annotation when a {@code @deprecated} tag is present in the
 * documentation comments without the annotation.
 *
 * @see Attributes#deprecated()
 * @see Deprecated
 * @jvms 4.7.15 The {@code Deprecated} Attribute
 * @since 24
 */
public sealed interface DeprecatedAttribute
        extends Attribute<DeprecatedAttribute>,
                ClassElement, MethodElement, FieldElement
        permits BoundAttribute.BoundDeprecatedAttribute,
                UnboundAttribute.UnboundDeprecatedAttribute {

    /**
     * {@return a {@code Deprecated} attribute}
     */
    static DeprecatedAttribute of() {
        return new UnboundAttribute.UnboundDeprecatedAttribute();
    }
}