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diff --git a/web/modules/contrib/drupalmoduleupgrader/src/Plugin/DMU/Converter/Functions/URL.php b/web/modules/contrib/drupalmoduleupgrader/src/Plugin/DMU/Converter/Functions/URL.php
new file mode 100644
index 000000000..b1966884c
--- /dev/null
+++ b/web/modules/contrib/drupalmoduleupgrader/src/Plugin/DMU/Converter/Functions/URL.php
@@ -0,0 +1,79 @@
+<?php
+
+namespace Drupal\drupalmoduleupgrader\Plugin\DMU\Converter\Functions;
+
+use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
+use Drupal\Core\Routing\RouteProviderInterface;
+use Drupal\Core\StringTranslation\TranslationInterface;
+use Drupal\drupalmoduleupgrader\TargetInterface;
+use Pharborist\Functions\FunctionCallNode;
+use Pharborist\Objects\ClassMethodCallNode;
+use Pharborist\Types\StringNode;
+use Psr\Log\LoggerInterface;
+
+/**
+ * @Converter(
+ *  id = "url",
+ *  description = @Translation("Rewrites calls to url()."),
+ *  fixme = @Translation("url() expects a route name or an external URI."),
+ *  dependencies = { "router.route_provider" }
+ * )
+ */
+class URL extends FunctionCallModifier implements ContainerFactoryPluginInterface {
+
+  /**
+   * @var \Drupal\Core\Routing\RouteProviderInterface
+   */
+  protected $routeProvider;
+
+  public function __construct(array $configuration, $plugin_id, $plugin_definition, TranslationInterface $translator, LoggerInterface $log, RouteProviderInterface $route_provider) {
+    parent::__construct($configuration, $plugin_id, $plugin_definition, $translator, $log);
+    $this->routeProvider = $route_provider;
+  }
+
+  /**
+   * Looks up routes by path, and returns TRUE if at least one was found.
+   *
+   * @param string $path
+   *  The path to search for, not including the leading slash. Can be an
+   *  external URL.
+   *
+   * @return boolean
+   *  TRUE if the path matches a route, FALSE otherwise. External URLs will
+   *  always return FALSE.
+   */
+  protected function routeExists($path) {
+    // If there's a scheme in the URL, consider this an external URL and don't even
+    // try to rewrite it.
+    $scheme = parse_url($path, PHP_URL_SCHEME);
+    if (isset($scheme)) {
+      return FALSE;
+    }
+    else {
+      $routes = $this->routeProvider->getRoutesByPattern('/' . $path);
+      return (sizeof($routes) > 0);
+    }
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function rewrite(FunctionCallNode $call, TargetInterface $target) {
+    $arguments = $call->getArguments();
+    if ($arguments[0] instanceof StringNode) {
+      $path = $arguments[0]->toValue();
+
+      // If the URL has a scheme (e.g., http://), it's external.
+      if (parse_url($path, PHP_URL_SCHEME)) {
+        return ClassMethodCallNode::create('\Drupal\Core\Url', 'fromUri')
+          ->appendArgument(clone $arguments[0]);
+      }
+      elseif ($this->routeExists($path)) {
+        $route = $this->routeProvider->getRoutesByPattern('/' . $path)->getIterator()->key();
+        return ClassMethodCallNode::create('\Drupal\Core\Url', 'fromRoute')
+          ->appendArgument(StringNode::fromValue($route));
+      }
+    }
+  }
+
+}