Update to drupal 8.0.0-rc1. For more information, see https://www.drupal.org/node/2582663

vendor/symfony/dependency-injection/DefinitionDecorator.php

@@ -0,0 +1,239 @@
+<?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;
+
+use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
+use Symfony\Component\DependencyInjection\Exception\OutOfBoundsException;
+
+/**
+ * This definition decorates another definition.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ *
+ * @api
+ */
+class DefinitionDecorator extends Definition
+{
+    private $parent;
+    private $changes = array();
+
+    /**
+     * Constructor.
+     *
+     * @param string $parent The id of Definition instance to decorate.
+     *
+     * @api
+     */
+    public function __construct($parent)
+    {
+        parent::__construct();
+
+        $this->parent = $parent;
+    }
+
+    /**
+     * Returns the Definition being decorated.
+     *
+     * @return string
+     *
+     * @api
+     */
+    public function getParent()
+    {
+        return $this->parent;
+    }
+
+    /**
+     * Returns all changes tracked for the Definition object.
+     *
+     * @return array An array of changes for this Definition
+     *
+     * @api
+     */
+    public function getChanges()
+    {
+        return $this->changes;
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @api
+     */
+    public function setClass($class)
+    {
+        $this->changes['class'] = true;
+
+        return parent::setClass($class);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function setFactory($callable)
+    {
+        $this->changes['factory'] = true;
+
+        return parent::setFactory($callable);
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @api
+     */
+    public function setFactoryClass($class)
+    {
+        $this->changes['factory_class'] = true;
+
+        return parent::setFactoryClass($class);
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @api
+     */
+    public function setFactoryMethod($method)
+    {
+        $this->changes['factory_method'] = true;
+
+        return parent::setFactoryMethod($method);
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @api
+     */
+    public function setFactoryService($service)
+    {
+        $this->changes['factory_service'] = true;
+
+        return parent::setFactoryService($service);
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @api
+     */
+    public function setConfigurator($callable)
+    {
+        $this->changes['configurator'] = true;
+
+        return parent::setConfigurator($callable);
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @api
+     */
+    public function setFile($file)
+    {
+        $this->changes['file'] = true;
+
+        return parent::setFile($file);
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @api
+     */
+    public function setPublic($boolean)
+    {
+        $this->changes['public'] = true;
+
+        return parent::setPublic($boolean);
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @api
+     */
+    public function setLazy($boolean)
+    {
+        $this->changes['lazy'] = true;
+
+        return parent::setLazy($boolean);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function setDecoratedService($id, $renamedId = null)
+    {
+        $this->changes['decorated_service'] = true;
+
+        return parent::setDecoratedService($id, $renamedId);
+    }
+
+    /**
+     * Gets an argument to pass to the service constructor/factory method.
+     *
+     * If replaceArgument() has been used to replace an argument, this method
+     * will return the replacement value.
+     *
+     * @param int $index
+     *
+     * @return mixed The argument value
+     *
+     * @throws OutOfBoundsException When the argument does not exist
+     *
+     * @api
+     */
+    public function getArgument($index)
+    {
+        if (array_key_exists('index_'.$index, $this->arguments)) {
+            return $this->arguments['index_'.$index];
+        }
+
+        $lastIndex = count(array_filter(array_keys($this->arguments), 'is_int')) - 1;
+
+        if ($index < 0 || $index > $lastIndex) {
+            throw new OutOfBoundsException(sprintf('The index "%d" is not in the range [0, %d].', $index, $lastIndex));
+        }
+
+        return $this->arguments[$index];
+    }
+
+    /**
+     * You should always use this method when overwriting existing arguments
+     * of the parent definition.
+     *
+     * If you directly call setArguments() keep in mind that you must follow
+     * certain conventions when you want to overwrite the arguments of the
+     * parent definition, otherwise your arguments will only be appended.
+     *
+     * @param int   $index
+     * @param mixed $value
+     *
+     * @return DefinitionDecorator the current instance
+     *
+     * @throws InvalidArgumentException when $index isn't an integer
+     *
+     * @api
+     */
+    public function replaceArgument($index, $value)
+    {
+        if (!is_int($index)) {
+            throw new InvalidArgumentException('$index must be an integer.');
+        }
+
+        $this->arguments['index_'.$index] = $value;
+
+        return $this;
+    }
+}