maintenance: Explicitly declare all used properties

All uses were checked with codesearch, and the visibility was chosen as
strict as possible.

Change-Id: I56666299cc04ccc418e05949422876583982eb3c

1 files changed, 22 insertions, 2 deletions

diff --git a/maintenance/rebuildImages.php b/maintenance/rebuildImages.php
index 3de007085950..df2ab042b1e8 100644
--- a/maintenance/rebuildImages.php
+++ b/maintenance/rebuildImages.php
@@ -41,12 +41,32 @@ use Wikimedia\Rdbms\IMaintainableDatabase;
  * @ingroup Maintenance
  */
 class ImageBuilder extends Maintenance {
-
 	/**
 	 * @var IMaintainableDatabase
 	 */
 	protected $dbw;
 
+	/** @var bool */
+	private $dryrun;
+
+	/** @var LocalRepo|null */
+	private $repo;
+
+	/** @var int */
+	private $updated;
+
+	/** @var int */
+	private $processed;
+
+	/** @var int */
+	private $count;
+
+	/** @var int */
+	private $startTime;
+
+	/** @var string */
+	private $table;
+
 	function __construct() {
 		parent::__construct();
 
@@ -79,7 +99,7 @@ class ImageBuilder extends Maintenance {
 	 * @return LocalRepo
 	 */
 	function getRepo() {
-		if ( !isset( $this->repo ) ) {
+		if ( $this->repo === null ) {
 			$this->repo = RepoGroup::singleton()->getLocalRepo();
 		}