Code Coverage for /src/src/Grammar/Alternative.php

1	<?php
2	declare( strict_types = 1 );
3
4	/**
5	* @file
6	* @license https://opensource.org/licenses/Apache-2.0 Apache-2.0
7	*/
8
9	namespace Wikimedia\CSS\Grammar;
10
11	use Wikimedia\CSS\Objects\ComponentValueList;
12	use Wikimedia\CSS\Util;
13
14	/**
15	* Matcher that matches one out of a set of Matchers ("\|" combiner).
16	* @see https://www.w3.org/TR/2024/WD-css-values-4-20240312/#comb-one
17	*/
18	class Alternative extends Matcher {
19	/** @var Matcher[] */
20	protected $matchers;
21
22	/**
23	* @param Matcher[] $matchers
24	*/
25	public function __construct( array $matchers ) {
26	Util::assertAllInstanceOf( $matchers, Matcher::class, '$matchers' );
27	$this->matchers = $matchers;
28	}
29
30	/** @inheritDoc */
31	protected function generateMatches( ComponentValueList $values, $start, array $options ) {
32	$used = [];
33	foreach ( $this->matchers as $matcher ) {
34	foreach ( $matcher->generateMatches( $values, $start, $options ) as $match ) {
35	$newMatch = $this->makeMatch( $values, $start, $match->getNext(), $match );
36	$mid = $newMatch->getUniqueID();
37	if ( !isset( $used[$mid] ) ) {
38	$used[$mid] = 1;
39	yield $newMatch;
40	}
41	}
42	}
43	}
44	}