Use ??= more

nicolas-grekas · nicolas-grekas · commit 9efb1618fabe · 2022-11-02T10:08:04.000+01:00
diff --git a/Debug/TraceableEventDispatcher.php b/Debug/TraceableEventDispatcher.php
@@ -110,9 +110,7 @@ public function dispatch(object $event, string $eventName = null): object
     {
         $eventName ??= $event::class;
 
-        if (null === $this->callStack) {
-            $this->callStack = new \SplObjectStorage();
-        }
+        $this->callStack ??= new \SplObjectStorage();
 
         $currentRequestHash = $this->currentRequestHash = $this->requestStack && ($request = $this->requestStack->getCurrentRequest()) ? spl_object_hash($request) : '';
 

Original file line number	Diff line number	Diff line change
`@@ -110,9 +110,7 @@ public function dispatch(object $event, string $eventName = null): object`
`110`	`110`	`{`
`111`	`111`	`$eventName ??= $event::class;`
`112`	`112`
`113`		`- if (null === $this->callStack) {`
`114`		`- $this->callStack = new \SplObjectStorage();`
`115`		`- }`
	`113`	`+ $this->callStack ??= new \SplObjectStorage();`
`116`	`114`
`117`	`115`	`$currentRequestHash = $this->currentRequestHash = $this->requestStack && ($request = $this->requestStack->getCurrentRequest()) ? spl_object_hash($request) : '';`
`118`	`116`