exit log() early if no crashreporter registered

Signed-off-by: Maxence Lange <maxence@artificial-owl.com>

lib/private/Log.php

@@ -62,24 +62,22 @@ use function strtr;
  * MonoLog is an example implementing this interface.
  */
 class Log implements ILogger, IDataLogger {
-	private IWriter $logger;
 	private ?SystemConfig $config;
 	private ?bool $logConditionSatisfied = null;
 	private ?Normalizer $normalizer;
-	private ?IRegistry $crashReporters;
 	private ?IEventDispatcher $eventDispatcher;
 
 	/**
 	 * @param IWriter $logger The logger that should be used
-	 * @param SystemConfig $config the system config object
+	 * @param SystemConfig|null $config the system config object
 	 * @param Normalizer|null $normalizer
-	 * @param IRegistry|null $registry
+	 * @param IRegistry|null $crashReporters
 	 */
 	public function __construct(
-		IWriter $logger,
+		private IWriter $logger,
 		SystemConfig $config = null,
 		Normalizer $normalizer = null,
-		IRegistry $registry = null
+		private	?IRegistry $crashReporters = null
 	) {
 		// FIXME: Add this for backwards compatibility, should be fixed at some point probably
 		if ($config === null) {
@@ -87,13 +85,11 @@ class Log implements ILogger, IDataLogger {
 		}
 
 		$this->config = $config;
-		$this->logger = $logger;
 		if ($normalizer === null) {
 			$this->normalizer = new Normalizer();
 		} else {
 			$this->normalizer = $normalizer;
 		}
-		$this->crashReporters = $registry;
 		$this->eventDispatcher = null;
 	}
 
@@ -211,6 +207,9 @@ class Log implements ILogger, IDataLogger {
 	 */
 	public function log(int $level, string $message, array $context = []) {
 		$minLevel = $this->getLogLevel($context);
+		if ($level < $minLevel && (($this->crashReporters?->hasReporters() ?? false) === false)) {
+			return; // we already know that log will be fully ignored
+		}
 
 		array_walk($context, [$this->normalizer, 'format']);
 
@@ -241,9 +240,7 @@ class Log implements ILogger, IDataLogger {
 					$this->crashReporters->delegateMessage($entry['message'], $messageContext);
 				}
 			} else {
-				if ($this->crashReporters !== null) {
-					$this->crashReporters->delegateBreadcrumb($entry['message'], 'log', $context);
-				}
+				$this->crashReporters?->delegateBreadcrumb($entry['message'], 'log', $context);
 			}
 		} catch (Throwable $e) {
 			// make sure we dont hard crash if logging fails
@@ -329,8 +326,8 @@ class Log implements ILogger, IDataLogger {
 		$level = $context['level'] ?? ILogger::ERROR;
 
 		$minLevel = $this->getLogLevel($context);
-		if ($level < $minLevel && ($this->crashReporters === null || !$this->crashReporters->hasReporters())) {
-			return;
+		if ($level < $minLevel && (($this->crashReporters?->hasReporters() ?? false) === false)) {
+			return; // we already know that log will be fully ignored
 		}
 
 		// if an error is raised before the autoloader is properly setup, we can't serialize exceptions