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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\Bridge\ProxyManager\LazyProxy\Instantiator;
  13  
  14  use ProxyManager\Configuration;
  15  use ProxyManager\Factory\LazyLoadingValueHolderFactory;
  16  use ProxyManager\GeneratorStrategy\EvaluatingGeneratorStrategy;
  17  use ProxyManager\Proxy\LazyLoadingInterface;
  18  use Symfony\Component\DependencyInjection\ContainerInterface;
  19  use Symfony\Component\DependencyInjection\Definition;
  20  use Symfony\Component\DependencyInjection\LazyProxy\Instantiator\InstantiatorInterface;
  21  
  22  /**
  23   * Runtime lazy loading proxy generator.
  24   *
  25   * @author Marco Pivetta <ocramius@gmail.com>
  26   */
  27  class RuntimeInstantiator implements InstantiatorInterface
  28  {
  29      /**
  30       * @var LazyLoadingValueHolderFactory
  31       */
  32      private $factory;
  33  
  34      public function __construct()
  35      {
  36          $config = new Configuration();
  37          $config->setGeneratorStrategy(new EvaluatingGeneratorStrategy());
  38  
  39          if (method_exists('ProxyManager\Version', 'getVersion')) {
  40              $this->factory = new LazyLoadingValueHolderFactoryV2($config);
  41          } else {
  42              $this->factory = new LazyLoadingValueHolderFactoryV1($config);
  43          }
  44      }
  45  
  46      /**
  47       * {@inheritdoc}
  48       */
  49      public function instantiateProxy(ContainerInterface $container, Definition $definition, $id, $realInstantiator)
  50      {
  51          return $this->factory->createProxy(
  52              $definition->getClass(),
  53              function (&$wrappedInstance, LazyLoadingInterface $proxy) use ($realInstantiator) {
  54                  $wrappedInstance = \call_user_func($realInstantiator);
  55  
  56                  $proxy->setProxyInitializer(null);
  57  
  58                  return true;
  59              }
  60          );
  61      }
  62  }