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

1	<?php
2	/**
3	* @file
4	* @license https://opensource.org/licenses/Apache-2.0 Apache-2.0
5	*/
6
7	namespace Wikimedia\CSS\Grammar;
8
9	use Wikimedia\CSS\Objects\ComponentValueList;
10
11	/**
12	* Wrap another matcher in a callback to verify the matches
13	*/
14	class CheckedMatcher extends Matcher {
15	/** @var Matcher */
16	private $matcher;
17
18	/** @var callable */
19	protected $check;
20
21	/**
22	* @param Matcher $matcher Base matcher
23	* @param callable $check Function to check the match is really valid.
24	* Prototype is bool func( ComponentValueList $values, GrammarMatch $match, array $options )
25	*/
26	public function __construct( Matcher $matcher, callable $check ) {
27	$this->matcher = $matcher;
28	$this->check = $check;
29	}
30
31	/** @inheritDoc */
32	protected function generateMatches( ComponentValueList $values, $start, array $options ) {
33	foreach ( $this->matcher->generateMatches( $values, $start, $options ) as $match ) {
34	if ( call_user_func( $this->check, $values, $match, $options ) ) {
35	yield $this->makeMatch( $values, $start, $match->getNext(), $match );
36	}
37	}
38	}
39	}