From dfd65d667f8a75ed5cdbc2a20f1feb1f5c7ddaab Mon Sep 17 00:00:00 2001
From: Fabien Potencier <fabien@potencier.org>
Date: Sat, 1 Jun 2024 08:25:18 +0200
Subject: [PATCH] [Scheduler] Throw an exception when no dispatcher has been
 passed to a Schedule

---
 src/Symfony/Component/Scheduler/Schedule.php | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/Symfony/Component/Scheduler/Schedule.php b/src/Symfony/Component/Scheduler/Schedule.php
index 4ccd88ff7a6e9..bd413892bc671 100644
--- a/src/Symfony/Component/Scheduler/Schedule.php
+++ b/src/Symfony/Component/Scheduler/Schedule.php
@@ -141,6 +141,10 @@ public function getSchedule(): static
 
     public function before(callable $listener, int $priority = 0): static
     {
+        if (!$this->dispatcher) {
+            throw new LogicException(sprintf('To register a listener with "%s()", you need to set an event dispatcher on the Schedule.', __METHOD__));
+        }
+
         $this->dispatcher->addListener(PreRunEvent::class, $listener, $priority);
 
         return $this;
@@ -148,6 +152,10 @@ public function before(callable $listener, int $priority = 0): static
 
     public function after(callable $listener, int $priority = 0): static
     {
+        if (!$this->dispatcher) {
+            throw new LogicException(sprintf('To register a listener with "%s()", you need to set an event dispatcher on the Schedule.', __METHOD__));
+        }
+
         $this->dispatcher->addListener(PostRunEvent::class, $listener, $priority);
 
         return $this;
@@ -155,6 +163,10 @@ public function after(callable $listener, int $priority = 0): static
 
     public function onFailure(callable $listener, int $priority = 0): static
     {
+        if (!$this->dispatcher) {
+            throw new LogicException(sprintf('To register a listener with "%s()", you need to set an event dispatcher on the Schedule.', __METHOD__));
+        }
+
         $this->dispatcher->addListener(FailureEvent::class, $listener, $priority);
 
         return $this;