72 lines
1.5 KiB
PHP
72 lines
1.5 KiB
PHP
<?php
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/*
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* This file is part of Respect/Validation.
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*
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* (c) Alexandre Gomes Gaigalas <alexandre@gaigalas.net>
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*
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* For the full copyright and license information, please view the LICENSE file
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* that was distributed with this source code.
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*/
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declare(strict_types=1);
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namespace Respect\Validation\Rules;
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use function array_merge;
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use function call_user_func_array;
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use function count;
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/**
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* Validates the input using the return of a given callable.
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*
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* @author Alexandre Gomes Gaigalas <alexandre@gaigalas.net>
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* @author Henrique Moody <henriquemoody@gmail.com>
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* @author William Espindola <oi@williamespindola.com.br>
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*/
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final class Callback extends AbstractRule
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{
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/**
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* @var callable
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*/
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private $callback;
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/**
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* @var mixed[]
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*/
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private $arguments;
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/**
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* Initializes the rule.
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*
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* @param mixed ...$arguments
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*/
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public function __construct(callable $callback, ...$arguments)
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{
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$this->callback = $callback;
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$this->arguments = $arguments;
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}
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/**
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* {@inheritDoc}
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*/
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public function validate($input): bool
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{
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return (bool) call_user_func_array($this->callback, $this->getArguments($input));
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}
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/**
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* @param mixed $input
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* @return mixed[]
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*/
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private function getArguments($input): array
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{
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$arguments = [$input];
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if (count($this->arguments) === 0) {
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return $arguments;
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}
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return array_merge($arguments, $this->arguments);
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}
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}
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