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94ddfcd0bdThe constructor of `Result` has many arguments, but that's not the primary reason why I'm making this change. I want to change the constructor, and it will become more complicated, so having this named constructor will be useful in the next refactoring. With this change, I also made the `id` mandatory. That made the constructor look neater and most to promote almost all properties to the constructor. Another change was removing the `fromAdjacent` method, which was quite confusing. I created the `asAdjacentOf` method, which is a bit clearer. If anything, it makes all static methods named constructors. It will be a bit more verbose, but more intuitive.
55 lines
1.5 KiB
PHP
55 lines
1.5 KiB
PHP
<?php
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/*
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* Copyright (c) Alexandre Gomes Gaigalas <alganet@gmail.com>
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* SPDX-License-Identifier: MIT
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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 Attribute;
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use Respect\Validation\Message\Template;
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use Respect\Validation\Result;
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use Respect\Validation\Rule;
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use function abs;
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use function is_int;
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use function is_numeric;
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use function preg_match;
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#[Attribute(Attribute::TARGET_PROPERTY | Attribute::IS_REPEATABLE)]
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#[Template(
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'{{subject}} must be a factor of {{dividend|raw}}',
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'{{subject}} must not be a factor of {{dividend|raw}}',
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)]
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final readonly class Factor implements Rule
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{
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public function __construct(
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private int $dividend,
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) {
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}
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public function evaluate(mixed $input): Result
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{
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$parameters = ['dividend' => $this->dividend];
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// Every integer is a factor of zero, and zero is the only integer that
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// has zero for a factor.
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if ($this->dividend === 0) {
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return Result::passed($input, $this, $parameters);
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}
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// Factors must be integers that are not zero.
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if (!is_numeric($input) || preg_match('/^-?\d+$/', (string) $input) === 0 || $input == 0) {
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return Result::failed($input, $this, $parameters);
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}
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$input = (int) abs((int) $input);
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$dividend = (int) abs($this->dividend);
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// The dividend divided by the input must be an integer if input is a
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// factor of the dividend.
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return Result::of(is_int($dividend / $input), $input, $this, $parameters);
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}
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}
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