Bdf\Collection\Util\Functor\Predicate\IsInstanceOf

Complexity

Total Complexity

2

Size/Duplication

Total Lines	24
Duplicated Lines	0 %

Test Coverage

Coverage

100%

Importance

Changes	1
Bugs	0	Features	0

2 Methods

Rating	Name	Duplication	Size	Complexity
A	__invoke()	0	3	1
A	__construct()	0	3	1

<?php

namespace Bdf\Collection\Util\Functor\Predicate;

/**
 * Check if the element is an instance of the given class name
 *
 * <code>
 * $stream
 *     ->filter(new IsInstanceOf(User::class)
 *     ->forEach(function (User $user) { ... })
 * ;
 * </code>
 */
final class IsInstanceOf implements PredicateInterface
{
    /**
     * @var string
     */
    private $className;


    /**
     * IsInstanceOf constructor.
     *
     * @param string $className The class name
     */
    public function __construct(string $className)
    {
        $this->className = $className;
    }

    /**
     * {@inheritdoc}
     */
    public function __invoke($element, $key = null): bool
    {
        return $element instanceof $this->className;
    }
}