From 26b4e372dd1573ee7d95a2b0f52ca7e5e24311ce Mon Sep 17 00:00:00 2001
From: Andrii Dembitskyi <andrew.demb@ya.ru>
Date: Wed, 27 Nov 2019 16:08:55 +0200
Subject: [PATCH] [HttpKernel] Support typehint to deprecated FlattenException
 in controller

---
 .../Component/HttpKernel/EventListener/ErrorListener.php       | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/Symfony/Component/HttpKernel/EventListener/ErrorListener.php b/src/Symfony/Component/HttpKernel/EventListener/ErrorListener.php
index 4d855b724e34..29e35eff6a67 100644
--- a/src/Symfony/Component/HttpKernel/EventListener/ErrorListener.php
+++ b/src/Symfony/Component/HttpKernel/EventListener/ErrorListener.php
@@ -12,6 +12,7 @@
 namespace Symfony\Component\HttpKernel\EventListener;
 
 use Psr\Log\LoggerInterface;
+use Symfony\Component\Debug\Exception\FlattenException as LegacyFlattenException;
 use Symfony\Component\ErrorHandler\Exception\FlattenException;
 use Symfony\Component\EventDispatcher\EventDispatcherInterface;
 use Symfony\Component\EventDispatcher\EventSubscriberInterface;
@@ -98,7 +99,7 @@ public function onControllerArguments(ControllerArgumentsEvent $event)
         $r = new \ReflectionFunction(\Closure::fromCallable($event->getController()));
         $r = $r->getParameters()[$k] ?? null;
 
-        if ($r && (!$r->hasType() || FlattenException::class === $r->getType()->getName())) {
+        if ($r && (!$r->hasType() || \in_array($r->getType()->getName(), [FlattenException::class, LegacyFlattenException::class], true])) {
             $arguments = $event->getArguments();
             $arguments[$k] = FlattenException::createFromThrowable($e);
             $event->setArguments($arguments);