MessageIndexStore.php
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MessageIndexStore.php
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	<?php
	declare( strict_types = 1 );

	namespace MediaWiki\Extension\Translate\MessageLoading;

	/**
	* @since 2024.05
	* @license GPL-2.0-or-later
	* @author Niklas Laxström
	*/
	abstract class MessageIndexStore {
	abstract public function retrieve( bool $readLatest = false ): array;

	public function get( string $key ) {
	// Default implementation
	$mi = $this->retrieve();
	return $mi[$key] ?? null;
	}

	abstract public function store( array $array, array $diff ): void;

	/** @return string[] */
	public function getKeys(): array {
	return array_keys( $this->retrieve() );
	}

	/**
	* These are probably slower than serialize and unserialize,
	* but they are more space efficient because we only need
	* strings and arrays.
	* @param mixed $data
	* @return mixed
	*/
	protected function serialize( $data ) {
	return is_array( $data ) ? implode( '\|', $data ) : $data;
	}

	protected function unserialize( $data ) {
	$array = explode( '\|', $data );
	return count( $array ) > 1 ? $array : $data;
	}
	}