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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\Compiler;
  13  
  14  use Symfony\Component\DependencyInjection\Definition;
  15  
  16  /**
  17   * Replaces env var placeholders by their current values.
  18   */
  19  class ResolveEnvPlaceholdersPass extends AbstractRecursivePass
  20  {
  21      protected function processValue($value, $isRoot = false)
  22      {
  23          if (\is_string($value)) {
  24              return $this->container->resolveEnvPlaceholders($value, true);
  25          }
  26          if ($value instanceof Definition) {
  27              $changes = $value->getChanges();
  28              if (isset($changes['class'])) {
  29                  $value->setClass($this->container->resolveEnvPlaceholders($value->getClass(), true));
  30              }
  31              if (isset($changes['file'])) {
  32                  $value->setFile($this->container->resolveEnvPlaceholders($value->getFile(), true));
  33              }
  34          }
  35  
  36          $value = parent::processValue($value, $isRoot);
  37  
  38          if ($value && \is_array($value) && !$isRoot) {
  39              $value = array_combine($this->container->resolveEnvPlaceholders(array_keys($value), true), $value);
  40          }
  41  
  42          return $value;
  43      }
  44  }