code: ///////////////////////////////////////////////////////////////////////////////////////////////
  // checkstyle: Checks Java source code and other text files for adherence to a set of rules.
  // Copyright (C) 2001-2023 the original author or authors.
  //
  // This library is free software; you can redistribute it and/or
  // modify it under the terms of the GNU Lesser General Public
  // License as published by the Free Software Foundation; either
  // version 2.1 of the License, or (at your option) any later version.
  //
  // This library 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
  // Lesser General Public License for more details.
  //
  // You should have received a copy of the GNU Lesser General Public
  // License along with this library; if not, write to the Free Software
  // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  ///////////////////////////////////////////////////////////////////////////////////////////////
  
  package com.puppycrawl.tools.checkstyle.api;
  
  import java.util.Locale;
  
  /**
   * Represents a Java visibility scope.
   *
   */
  public enum Scope {
  
      /** Nothing scope. */
      NOTHING,
      /** Public scope. */
      PUBLIC,
      /** Protected scope. */
      PROTECTED,
      /** Package or default scope. */
      PACKAGE,
      /** Private scope. */
      PRIVATE,
      /** Anonymous inner scope. */
      ANONINNER;
  
      @Override
      public String toString() {
          return getName();
      }
  
      /**
       * Returns name of severity level.
       *
       * @return the name of this severity level.
       */
      public String getName() {
          return name().toLowerCase(Locale.ENGLISH);
      }
  
      /**
       * Checks if this scope is a subscope of another scope.
       * Example: PUBLIC is a subscope of PRIVATE.
       *
       * @param scope a {@code Scope} value
       * @return if {@code this} is a subscope of {@code scope}.
       */
      public boolean isIn(Scope scope) {
          return compareTo(scope) <= 0;
      }
  
      /**
       * Scope factory method.
       *
       * @param scopeName scope name, such as "nothing", "public", etc.
       * @return the {@code Scope} associated with {@code scopeName}
       */
      public static Scope getInstance(String scopeName) {
          return valueOf(Scope.class, scopeName.trim().toUpperCase(Locale.ENGLISH));
      }
  
  }
  