GetDifferenceEngineHook.php
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GetDifferenceEngineHook.php
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	<?php

	namespace MediaWiki\Content\Hook;

	use DifferenceEngine;
	use MediaWiki\Context\IContextSource;

	/**
	* This is a hook handler interface, see docs/Hooks.md.
	* Use the hook name "GetDifferenceEngine" to register handlers implementing this interface.
	*
	* @stable to implement
	* @ingroup Hooks
	*/
	interface GetDifferenceEngineHook {
	/**
	* This hook is called when getting a new difference engine interface object.
	* Use this hook to decorate or replace the default difference engine.
	*
	* @since 1.35
	*
	* @param IContextSource $context IContextSource context to be used for diff
	* @param int $old Revision ID to show and diff with
	* @param int\|string $new Either a revision ID or one of the strings 'cur', 'prev' or 'next'
	* @param bool $refreshCache If set, refreshes the diff cache
	* @param bool $unhide If set, allow viewing deleted revs
	* @param DifferenceEngine &$differenceEngine Difference engine object to be used for the diff
	* @return bool\|void True or no return value to continue or false to abort
	*/
	public function onGetDifferenceEngine( $context, $old, $new, $refreshCache,
	$unhide, &$differenceEngine
	);
	}