diff --git a/core/lib/Drupal/Core/Template/TwigExtension.php b/core/lib/Drupal/Core/Template/TwigExtension.php
index 511cefb..1efcc18 100644
--- a/core/lib/Drupal/Core/Template/TwigExtension.php
+++ b/core/lib/Drupal/Core/Template/TwigExtension.php
@@ -76,6 +76,7 @@ public function getFunctions() {
       new \Twig_SimpleFunction('path', array($this, 'getPath'), array('is_safe_callback' => array($this, 'isUrlGenerationSafe'))),
       new \Twig_SimpleFunction('url_from_path', array($this, 'getUrlFromPath'), array('is_safe_callback' => array($this, 'isUrlGenerationSafe'))),
       new \Twig_SimpleFunction('link', array($this, 'getLink')),
+      new \Twig_SimpleFunction('add_libraries', array($this, 'addLibraries'), array('needs_context' => true)),
     );
   }
 
@@ -254,4 +255,15 @@ public function isUrlGenerationSafe(\Twig_Node $args_node) {
     return array();
   }
 
+  /**
+   * Adds libraries to the page.
+   *
+   * @param array $context
+   *   The template context.
+   */
+  public function addLibraries($context) {
+    $variables = $context['reference']->getElement();
+    $variables['elements']['#attached']['library'] = array_merge($variables['elements']['#attached']['library'], $context['libraries']);
+  }
+
 }
diff --git a/core/lib/Drupal/Core/Template/VariableStorage.php b/core/lib/Drupal/Core/Template/VariableStorage.php
new file mode 100644
index 0000000..9c82078
--- /dev/null
+++ b/core/lib/Drupal/Core/Template/VariableStorage.php
@@ -0,0 +1,15 @@
+<?php
+
+namespace Drupal\Core\Template;
+
+class VariableStorage {
+  protected $elements;
+
+  public function __construct(&$elements) {
+    $this->elements = $elements;
+  }
+
+  public function &getElement() {
+    return $this->elements;
+  }
+}
diff --git a/core/lib/Drupal/Core/Theme/ThemeManager.php b/core/lib/Drupal/Core/Theme/ThemeManager.php
index a100374..3aee3fa 100644
--- a/core/lib/Drupal/Core/Theme/ThemeManager.php
+++ b/core/lib/Drupal/Core/Theme/ThemeManager.php
@@ -13,6 +13,7 @@
 use Drupal\Core\Extension\ModuleHandlerInterface;
 use Drupal\Core\Template\Attribute;
 use Drupal\Component\Utility\SafeMarkup;
+use Drupal\Core\Template\VariableStorage;
 
 /**
  * Provides the default implementation of a theme manager.
@@ -372,6 +373,7 @@ protected function theme($hook, $variables = array()) {
       if (isset($theme_hook_suggestion)) {
         $variables['theme_hook_suggestion'] = $theme_hook_suggestion;
       }
+      $variables['reference'] = new VariableStorage($variables);
       $output = $render_function($template_file, $variables);
     }