/**
* Cache page existence for performance
- * @param DatabaseBase $db
+ * @param IDatabase $db
* @param ResultWrapper $res
*/
function preprocessResults( $db, $res ) {
* @note This will only be run if the page is cached (ie $wgMiserMode = true)
* unless forceExistenceCheck() is true.
* @since 1.24
- * @return boolean
+ * @return bool
*/
protected function existenceCheck( Title $title ) {
return $title->isKnown();