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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\ParameterBag;
  13  
  14  use Symfony\Component\DependencyInjection\Exception\LogicException;
  15  
  16  /**
  17   * Holds read-only parameters.
  18   *
  19   * @author Fabien Potencier <fabien@symfony.com>
  20   */
  21  class FrozenParameterBag extends ParameterBag
  22  {
  23      /**
  24       * For performance reasons, the constructor assumes that
  25       * all keys are already lowercased.
  26       *
  27       * This is always the case when used internally.
  28       *
  29       * @param array $parameters An array of parameters
  30       */
  31      public function __construct(array $parameters = array())
  32      {
  33          $this->parameters = $parameters;
  34          $this->resolved = true;
  35      }
  36  
  37      /**
  38       * {@inheritdoc}
  39       */
  40      public function clear()
  41      {
  42          throw new LogicException('Impossible to call clear() on a frozen ParameterBag.');
  43      }
  44  
  45      /**
  46       * {@inheritdoc}
  47       */
  48      public function add(array $parameters)
  49      {
  50          throw new LogicException('Impossible to call add() on a frozen ParameterBag.');
  51      }
  52  
  53      /**
  54       * {@inheritdoc}
  55       */
  56      public function set($name, $value)
  57      {
  58          throw new LogicException('Impossible to call set() on a frozen ParameterBag.');
  59      }
  60  
  61      /**
  62       * {@inheritdoc}
  63       */
  64      public function remove($name)
  65      {
  66          throw new LogicException('Impossible to call remove() on a frozen ParameterBag.');
  67      }
  68  }