--- /dev/null
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\DependencyInjection\Compiler;
+
+use Symfony\Component\DependencyInjection\Definition;
+
+/**
+ * Replaces env var placeholders by their current values.
+ */
+class ResolveEnvPlaceholdersPass extends AbstractRecursivePass
+{
+ protected function processValue($value, $isRoot = false)
+ {
+ if (is_string($value)) {
+ return $this->container->resolveEnvPlaceholders($value, true);
+ }
+ if ($value instanceof Definition) {
+ $changes = $value->getChanges();
+ if (isset($changes['class'])) {
+ $value->setClass($this->container->resolveEnvPlaceholders($value->getClass(), true));
+ }
+ if (isset($changes['file'])) {
+ $value->setFile($this->container->resolveEnvPlaceholders($value->getFile(), true));
+ }
+ }
+
+ $value = parent::processValue($value, $isRoot);
+
+ if ($value && is_array($value) && !$isRoot) {
+ $value = array_combine($this->container->resolveEnvPlaceholders(array_keys($value), true), $value);
+ }
+
+ return $value;
+ }
+}