Code Coverage for /workspace/src/includes/libs/ObjectCache/SerializedValueContainer.php

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