JDK14/Java14源码在线阅读

/*
 * Copyright (c) 2005, 2019, 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
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 */

package javax.lang.model.element;

/**
 * The <i>nesting kind</i> of a type element.
 * Type elements come in four varieties:
 * top-level, member, local, and anonymous.
 * <i>Nesting kind</i> is a non-standard term used here to denote this
 * classification.
 *
 * <p>Note that it is possible additional nesting kinds will be added
 * in future versions of the platform.
 *
 * <p><b>Example:</b> The classes below are annotated with their nesting kind.
 * <blockquote><pre>
 *
 * import java.lang.annotation.*;
 * import static java.lang.annotation.RetentionPolicy.*;
 * import javax.lang.model.element.*;
 * import static javax.lang.model.element.NestingKind.*;
 *
 * &#64;Nesting(TOP_LEVEL)
 * public class NestingExamples {
 *     &#64;Nesting(MEMBER)
 *     static class MemberClass1{}
 *
 *     &#64;Nesting(MEMBER)
 *     class MemberClass2{}
 *
 *     public static void main(String... argv) {
 *         &#64;Nesting(LOCAL)
 *         class LocalClass{};
 *
 *         Class&lt;?&gt;[] classes = {
 *             NestingExamples.class,
 *             MemberClass1.class,
 *             MemberClass2.class,
 *             LocalClass.class
 *         };
 *
 *         for(Class&lt;?&gt; clazz : classes) {
 *             System.out.format("%s is %s%n",
 *                               clazz.getName(),
 *                               clazz.getAnnotation(Nesting.class).value());
 *         }
 *     }
 * }
 *
 * &#64;Retention(RUNTIME)
 * &#64;interface Nesting {
 *     NestingKind value();
 * }
 * </pre></blockquote>
 *
 * @author Joseph D. Darcy
 * @author Scott Seligman
 * @author Peter von der Ah&eacute;
 * @since 1.6
 */
public enum NestingKind {
    /**
     * A top-level type, not contained within another type.
     */
    TOP_LEVEL,

    /**
     * A type that is a named member of another type.
     * @jls 8.5 Member Type Declarations
     */
    MEMBER,

    /**
     * A named type declared within a construct other than a type.
     * @jls 14.3 Local Class Declarations
     */
    LOCAL,

    /**
     * A type without a name.
     * @jls 15.9.5 Anonymous Class Declarations
     */
    ANONYMOUS;

    /**

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