From 1b7759a3ba20cd7113752e3ba2463a535220dd5b Mon Sep 17 00:00:00 2001
From: David Buchmann <david@liip.ch>
Date: Thu, 7 Dec 2017 14:48:31 +0100
Subject: [PATCH] avoid error during error reporting in chain router

the UrlGeneratorInterface::generate is not very specific about $parameters and allows non-arrays. simple solution as its only about reporting in an edge case of an error situation.
---
 src/ChainRouter.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/ChainRouter.php b/src/ChainRouter.php
index 313baa36..1e9548f7 100644
--- a/src/ChainRouter.php
+++ b/src/ChainRouter.php
@@ -288,6 +288,10 @@ private function rebuildRequest($pathinfo)
     private function getErrorMessage($name, $router = null, $parameters = null)
     {
         if ($router instanceof VersatileGeneratorInterface) {
+            // the $parameters are not forced to be array, but versatile generator does typehint it
+            if (!is_array($parameters)) {
+                $parameters = [];
+            }
             $displayName = $router->getRouteDebugMessage($name, $parameters);
         } elseif (is_object($name)) {
             $displayName = method_exists($name, '__toString')