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<?php |
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declare(strict_types=1); |
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namespace Marcosh\PhpValidationDSL\Basic; |
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use Marcosh\PhpValidationDSL\Result\ValidationResult; |
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use Marcosh\PhpValidationDSL\Translator\Translator; |
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use Marcosh\PhpValidationDSL\Validation; |
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use function is_callable; |
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final class IsInstanceOf implements Validation |
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{ |
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public const NOT_AN_INSTANCE = 'is-instance-of.not-an-instance'; |
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/** |
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* @var string |
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*/ |
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private $className; |
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/** |
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* @var callable with signature $className -> $data -> string[] |
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*/ |
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private $errorFormatter; |
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private function __construct(string $className, ?callable $errorFormatter = null) |
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{ |
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$this->className = $className; |
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$this->errorFormatter = is_callable($errorFormatter) ? |
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$errorFormatter : |
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/** |
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* @template T |
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* @param string $className |
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* @param mixed $data |
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* @psalm-param T $data |
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* @return string[] |
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* @psalm-return array{0:string} |
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*/ |
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function (string $className, $data): array { |
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return [self::NOT_AN_INSTANCE]; |
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}; |
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} |
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public static function withClassName(string $className): self |
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{ |
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return new self($className); |
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} |
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public static function withClassNameAndFormatter(string $className, callable $errorFormatter): self |
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{ |
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return new self($className, $errorFormatter); |
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} |
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public static function withClassNameAndTranslator(string $className, Translator $translator): self |
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{ |
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return new self( |
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$className, |
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/** |
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* @template T |
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* @param string $className |
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* @param mixed $data |
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* @psalm-param T $data |
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* @return string[] |
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* @psalm-return array{0:string} |
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*/ |
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function (string $className, $data) use ($translator): array { |
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return [$translator->translate(self::NOT_AN_INSTANCE)]; |
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} |
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); |
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} |
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public function validate($data, array $context = []): ValidationResult |
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{ |
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if (! $data instanceof $this->className) { |
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return ValidationResult::errors(($this->errorFormatter)($this->className, $data)); |
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} |
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return ValidationResult::valid($data); |
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} |
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} |
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marcosh /
php-validation-dsl
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This check looks for parameters that have been defined for a function or method, but which are not used in the method body.