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/*
 * ProGuard -- shrinking, optimization, obfuscation, and preverification
 *             of Java bytecode.
 *
 * Copyright (c) 2002-2020 Guardsquare NV
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the Free
 * Software Foundation; either version 2 of the License, or (at your option)
 * any later version.
 *
 * This program 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 for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */
package proguard.obfuscate;

/**
 * This NameFactory generates names that are special, by appending a suffix.
 *
 * @author Eric Lafortune
 */
public class SpecialNameFactory implements NameFactory {
  private static final char SPECIAL_SUFFIX = '_';

  private final NameFactory nameFactory;

  /**
   * Creates a new SpecialNameFactory.
   *
   * @param nameFactory The name factory from which original names will be retrieved.
   */
  public SpecialNameFactory(NameFactory nameFactory) {
    this.nameFactory = nameFactory;
  }

  // Implementations for NameFactory.

  public void reset() {
    nameFactory.reset();
  }

  public String nextName() {
    return nameFactory.nextName() + SPECIAL_SUFFIX;
  }

  // Small utility methods.

  /** Returns whether the given name is special. */
  static boolean isSpecialName(String name) {
    return name != null && name.charAt(name.length() - 1) == SPECIAL_SUFFIX;
  }

  public static void main(String[] args) {
    SpecialNameFactory factory = new SpecialNameFactory(new SimpleNameFactory());

    for (int counter = 0; counter < 50; counter++) {
      System.out.println("[" + factory.nextName() + "]");
    }
  }
}