Code Coverage for /workspace/src/extensions/CirrusSearch/includes/Maintenance/Set.php

1	<?php
2
3	namespace CirrusSearch\Maintenance;
4
5	/**
6	* Simple set implementation so it's clear what the array
7	* is being used for when values are only stored as keys.
8	*/
9	class Set implements \Countable {
10	/** @var true[] */
11	private $elements = [];
12
13	public function __construct( array $elements = [] ) {
14	$this->addAll( $elements );
15	}
16
17	/**
18	* @return int Number of elements in the set
19	*/
20	public function count(): int {
21	return count( $this->elements );
22	}
23
24	/**
25	* @param string $element Element to add to set
26	* @return self
27	*/
28	public function add( $element ) {
29	$this->elements[$element] = true;
30	return $this;
31	}
32
33	/**
34	* @param string[] $elements Elements to add to set
35	* @return self
36	*/
37	public function addAll( array $elements ) {
38	foreach ( $elements as $element ) {
39	$this->add( $element );
40	}
41	return $this;
42	}
43
44	/**
45	* @param Set $other Set to union into this one
46	* @return self
47	*/
48	public function union( Set $other ) {
49	$this->elements += $other->elements;
50	return $this;
51	}
52
53	/**
54	* @param string $element Value to test
55	* @return bool True when the set contains $element
56	*/
57	public function contains( $element ) {
58	return array_key_exists( $element, $this->elements );
59	}
60
61	/**
62	* @return string[] Elements of the set
63	*/
64	public function values() {
65	return array_keys( $this->elements );
66	}
67	}