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<?php declare(strict_types=1); |
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/** |
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* This file is part of the daikon-cqrs/value-object project. |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Daikon\ValueObject; |
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use Daikon\Interop\Assertion; |
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use Daikon\Interop\MakeEmptyInterface; |
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use Daikon\ValueObject\ValueObjectInterface; |
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final class Sha256 implements MakeEmptyInterface, ValueObjectInterface |
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{ |
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private ?string $hash; |
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public static function generate(): self |
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{ |
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return new self(hash( |
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'sha256', |
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sprintf( |
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'%04x%04x-%04x-%04x-%04x-%04x%04x%04x', |
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mt_rand(0, 0xffff), |
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mt_rand(0, 0xffff), |
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mt_rand(0, 0xffff), |
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mt_rand(0, 0x0fff) | 0x4000, |
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mt_rand(0, 0x3fff) | 0x8000, |
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mt_rand(0, 0xffff), |
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mt_rand(0, 0xffff), |
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mt_rand(0, 0xffff) |
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) |
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)); |
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} |
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/** @param null|string $state */ |
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public static function fromNative($state): self |
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{ |
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return new self($state); |
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} |
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public static function makeEmpty(): self |
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{ |
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return new self; |
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} |
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public function toNative() |
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{ |
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return $this->hash; |
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} |
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/** @param self $comparator */ |
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public function equals($comparator): bool |
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{ |
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Assertion::isInstanceOf($comparator, self::class); |
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return $this->toNative() === $comparator->toNative(); |
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} |
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public function isEmpty(): bool |
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{ |
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return empty($this->hash); |
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} |
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public function __toString(): string |
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{ |
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return (string)$this->hash; |
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} |
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private function __construct(?string $hash = null) |
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{ |
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Assertion::nullOrRegex($hash, '/^[a-f0-9]{64}$/', 'Invalid format.'); |
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$this->hash = $hash; |
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} |
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} |
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daikon-cqrs /
value-object
