Code Coverage for /workspace/src/includes/libs/objectcache/serialized/SerializedValueContainer.php

1	<?php
2
3	namespace Wikimedia\ObjectCache\Serialized;
4
5	use stdClass;
6
7	/**
8	* Helper class for segmenting large cache values without relying
9	* on serializing classes.
10	*
11	* @since 1.34
12	* @ingroup Cache
13	*/
14	class SerializedValueContainer {
15	private const SCHEMA = '__svc_schema__';
16	// 64 bit UID
17	private const SCHEMA_SEGMENTED = 'CAYCDAgCDw4';
18	public const SEGMENTED_HASHES = '__hashes__';
19
20	/**
21	* @param string[] $segmentHashList Ordered list of hashes for each segment
22	* @return stdClass
23	*/
24	public static function newSegmented( array $segmentHashList ) {
25	return (object)[
26	self::SCHEMA => self::SCHEMA_SEGMENTED,
27	self::SEGMENTED_HASHES => $segmentHashList
28	];
29	}
30
31	/**
32	* @param mixed $value
33	* @return bool
34	*/
35	public static function isSegmented( $value ): bool {
36	return (
37	$value instanceof stdClass &&
38	( $value->{self::SCHEMA} ?? null ) === self::SCHEMA_SEGMENTED
39	);
40	}
41	}
42
43	/** @deprecated class alias since 1.43 */
44	class_alias( SerializedValueContainer::class, 'SerializedValueContainer' );