fix(Storage): Fix getDirectoryContent() return type

Signed-off-by: provokateurin <kate@provokateurin.de>

Author: provokateurin

lib/private/Files/Storage/Common.php

@@ -750,7 +750,7 @@ public function writeStream(string $path, $stream, ?int $size = null): int {
 		return $count;
 	}
 
-	public function getDirectoryContent($directory): \Traversable|false {
+	public function getDirectoryContent($directory): \Traversable {
 		$dh = $this->opendir($directory);
 
 		if ($dh === false) {

lib/private/Files/Storage/Storage.php

@@ -72,5 +72,5 @@ public function getMetaData($path): ?array;
 	 * - storage_mtime
 	 * - permissions
 	 */
-	public function getDirectoryContent($directory): \Traversable|false;
+	public function getDirectoryContent($directory): \Traversable;
 }

lib/private/Files/Storage/Wrapper/Availability.php

@@ -438,13 +438,13 @@ protected function setUnavailable(?StorageNotAvailableException $e): void {
 
 
 
-	public function getDirectoryContent($directory): \Traversable|false {
+	public function getDirectoryContent($directory): \Traversable {
 		$this->checkAvailability();
 		try {
 			return parent::getDirectoryContent($directory);
 		} catch (StorageNotAvailableException $e) {
 			$this->setUnavailable($e);
-			return false;
+			yield;
 		}
 	}
 }

lib/private/Files/Storage/Wrapper/Jail.php

@@ -262,7 +262,7 @@ public function writeStream(string $path, $stream, ?int $size = null): int {
 		}
 	}
 
-	public function getDirectoryContent($directory): \Traversable|false {
+	public function getDirectoryContent($directory): \Traversable {
 		return $this->getWrapperStorage()->getDirectoryContent($this->getUnjailedPath($directory));
 	}
 }

lib/private/Files/Storage/Wrapper/Wrapper.php

@@ -331,7 +331,7 @@ public function writeStream(string $path, $stream, ?int $size = null): int {
 		}
 	}
 
-	public function getDirectoryContent($directory): \Traversable|false {
+	public function getDirectoryContent($directory): \Traversable {
 		return $this->getWrapperStorage()->getDirectoryContent($directory);
 	}