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<?php
namespace MediaWiki\Diff\Hook;
use DifferenceEngine;
/**
* This is a hook handler interface, see docs/Hooks.md.
* Use the hook name "DifferenceEngineShowEmptyOldContent" to register handlers implementing this interface.
*
* @stable to implement
* @ingroup Hooks
*/
interface DifferenceEngineShowEmptyOldContentHook {
/**
* Use this hook to change the diff table body (without header) in cases when there is
* no old revision or the old and new revisions are identical.
*
* @since 1.35
*
* @param DifferenceEngine $differenceEngine
* @return bool|void True or no return value to continue or false to abort
*/
public function onDifferenceEngineShowEmptyOldContent( $differenceEngine );
}
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