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<?php
/**
* SPDX-FileCopyrightText: 2023 Nextcloud GmbH and Nextcloud contributors
* SPDX-License-Identifier: AGPL-3.0-or-later
*/
namespace OC\Files\Search\QueryOptimizer;
use OCP\Files\Search\ISearchBinaryOperator;
use OCP\Files\Search\ISearchOperator;
/**
* replace single argument AND and OR operations with their single argument
*/
class FlattenSingleArgumentBinaryOperation extends ReplacingOptimizerStep {
public function processOperator(ISearchOperator &$operator): bool {
parent::processOperator($operator);
if (
$operator instanceof ISearchBinaryOperator &&
count($operator->getArguments()) === 1 &&
(
$operator->getType() === ISearchBinaryOperator::OPERATOR_OR ||
$operator->getType() === ISearchBinaryOperator::OPERATOR_AND
)
) {
$operator = $operator->getArguments()[0];
return true;
}
return false;
}
}
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