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   1  <?php
   2  
   3  /*
   4   * This file is part of the Symfony package.
   5   *
   6   * (c) Fabien Potencier <fabien@symfony.com>
   7   *
   8   * For the full copyright and license information, please view the LICENSE
   9   * file that was distributed with this source code.
  10   */
  11  
  12  namespace Symfony\Component\DependencyInjection;
  13  
  14  class Alias
  15  {
  16      private $id;
  17      private $public;
  18      private $private;
  19  
  20      /**
  21       * @param string $id     Alias identifier
  22       * @param bool   $public If this alias is public
  23       */
  24      public function __construct($id, $public = true)
  25      {
  26          $this->id = (string) $id;
  27          $this->public = $public;
  28          $this->private = 2 > \func_num_args();
  29      }
  30  
  31      /**
  32       * Checks if this DI Alias should be public or not.
  33       *
  34       * @return bool
  35       */
  36      public function isPublic()
  37      {
  38          return $this->public;
  39      }
  40  
  41      /**
  42       * Sets if this Alias is public.
  43       *
  44       * @param bool $boolean If this Alias should be public
  45       *
  46       * @return $this
  47       */
  48      public function setPublic($boolean)
  49      {
  50          $this->public = (bool) $boolean;
  51          $this->private = false;
  52  
  53          return $this;
  54      }
  55  
  56      /**
  57       * Sets if this Alias is private.
  58       *
  59       * When set, the "private" state has a higher precedence than "public".
  60       * In version 3.4, a "private" alias always remains publicly accessible,
  61       * but triggers a deprecation notice when accessed from the container,
  62       * so that the alias can be made really private in 4.0.
  63       *
  64       * @param bool $boolean
  65       *
  66       * @return $this
  67       */
  68      public function setPrivate($boolean)
  69      {
  70          $this->private = (bool) $boolean;
  71  
  72          return $this;
  73      }
  74  
  75      /**
  76       * Whether this alias is private.
  77       *
  78       * @return bool
  79       */
  80      public function isPrivate()
  81      {
  82          return $this->private;
  83      }
  84  
  85      /**
  86       * Returns the Id of this alias.
  87       *
  88       * @return string The alias id
  89       */
  90      public function __toString()
  91      {
  92          return $this->id;
  93      }
  94  }