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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Translation\Catalogue;
use Symfony\Component\Translation\MessageCatalogueInterface;
/**
* Represents an operation on catalogue(s).
*
* An instance of this interface performs an operation on one or more catalogues and
* stores intermediate and final results of the operation.
*
* The first catalogue in its argument(s) is called the 'source catalogue' or 'source' and
* the following results are stored:
*
* Messages: also called 'all', are valid messages for the given domain after the operation is performed.
*
* New Messages: also called 'new' (new = all ∖ source = {x: x ∈ all ∧ x ∉ source}).
*
* Obsolete Messages: also called 'obsolete' (obsolete = source ∖ all = {x: x ∈ source ∧ x ∉ all}).
*
* Result: also called 'result', is the resulting catalogue for the given domain that holds the same messages as 'all'.
*
* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
*/
interface OperationInterface
{
/**
* Returns domains affected by operation.
*/
public function getDomains(): array;
/**
* Returns all valid messages ('all') after operation.
*/
public function getMessages(string $domain): array;
/**
* Returns new messages ('new') after operation.
*/
public function getNewMessages(string $domain): array;
/**
* Returns obsolete messages ('obsolete') after operation.
*/
public function getObsoleteMessages(string $domain): array;
/**
* Returns resulting catalogue ('result').
*/
public function getResult(): MessageCatalogueInterface;
}