1<?php
2
3namespace MediaWiki\Diff\Hook;
4
5use DifferenceEngine;
6use Revision;
7
8/**
9 * @deprecated since 1.35, use DifferenceEngineViewHeader
10 * @ingroup Hooks
11 */
12interface DiffViewHeaderHook {
13	/**
14	 * This hook is called before diff display.
15	 *
16	 * @since 1.35
17	 *
18	 * @param DifferenceEngine $diff
19	 * @param Revision|null $oldRev Old revision (may be null/invalid)
20	 * @param Revision $newRev New revision
21	 * @return bool|void True or no return value to continue or false to abort
22	 */
23	public function onDiffViewHeader( $diff, $oldRev, $newRev );
24}
25