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<?php |
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declare(strict_types=1); |
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namespace Marcosh\PhpValidationDSL\Result; |
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use Marcosh\PhpValidationDSL\Equality; |
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final class ValidationResult |
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{ |
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/** |
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* @var bool |
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*/ |
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private $isValid; |
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/** |
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* @var mixed |
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*/ |
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private $validContent; |
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/** |
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* @var array |
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*/ |
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private $messages; |
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/** |
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* @param bool $isValid |
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* @param mixed $validContent |
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* @param array $messages |
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*/ |
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private function __construct( |
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bool $isValid, |
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$validContent, |
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array $messages |
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) { |
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$this->isValid = $isValid; |
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$this->validContent = $validContent; |
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$this->messages = $messages; |
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} |
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/** |
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* @param mixed $validContent |
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* @return self |
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*/ |
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public static function valid($validContent): self |
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{ |
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return new self(true, $validContent, []); |
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} |
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public static function errors(array $messages): self |
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{ |
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return new self(false, null, $messages); |
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} |
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public function join(self $that, callable $joinValid, callable $joinErrors): self |
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{ |
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if (! $this->isValid || ! $that->isValid) { |
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return self::errors($joinErrors($this->messages, $that->messages)); |
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} |
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return self::valid($joinValid($this->validContent, $that->validContent)); |
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} |
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public function meet(self $that, callable $joinErrors): self |
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{ |
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if ($this->isValid) { |
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return $this; |
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} |
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if ($that->isValid) { |
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return $that; |
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} |
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return self::errors($joinErrors($this->messages, $that->messages)); |
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} |
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/** |
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* @param callable $processValid : validContent -> mixed |
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* @param callable $processErrors : messages -> mixed |
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* @return mixed |
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*/ |
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public function process( |
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callable $processValid, |
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callable $processErrors |
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) { |
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if (! $this->isValid) { |
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return $processErrors($this->messages); |
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} |
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return $processValid($this->validContent); |
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} |
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/** |
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* @param callable $map : validContent -> newValidContent |
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* @return ValidationResult |
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*/ |
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public function map(callable $map): self |
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{ |
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return $this->process( |
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/** @param mixed $validContent */ |
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function ($validContent) use ($map): self { |
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return self::valid($map($validContent)); |
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}, |
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function (array $messages): self { |
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return self::errors($messages); |
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} |
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); |
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} |
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public function mapErrors(callable $map): self |
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{ |
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return $this->process( |
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/** @param mixed $validContent */ |
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function ($validContent): self { |
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return self::valid($validContent); |
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}, |
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function (array $messages) use ($map): self { |
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return self::errors($map($messages)); |
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} |
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); |
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} |
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/** |
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* @param ValidationResult $apply contains a callable |
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* @return self |
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*/ |
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public function apply(ValidationResult $apply): self |
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{ |
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return $apply->process( |
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function (callable $validApply): self { |
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return $this->map($validApply); |
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}, |
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/** @return mixed */ |
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function (array $applyMessages) { |
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return $this->process( |
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/** @param mixed $validContent */ |
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function ($validContent) use ($applyMessages): self { |
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return self::errors($applyMessages); |
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}, |
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function (array $messages) use ($applyMessages): self { |
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return self::errors(array_merge($applyMessages, $messages)); |
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} |
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); |
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} |
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); |
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} |
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/** |
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* @param callable $bind : validContent -> ValidationResult |
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* @return self |
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*/ |
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public function bind(callable $bind): self |
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{ |
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return $this->process( |
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/** @param mixed $validContent */ |
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function ($validContent) use ($bind): self { |
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return $bind($validContent); |
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}, |
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function (array $messages): self { |
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return self::errors($messages); |
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} |
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); |
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} |
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public function equals(self $that): bool |
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{ |
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if (is_object($this->validContent) && is_object($that->validContent) && |
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get_class($this->validContent) === get_class($that->validContent) && |
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$this->validContent instanceof Equality) { |
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$contentEquality = $this->validContent->equals($that->validContent); |
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} else { |
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$contentEquality = $this->validContent === $that->validContent; |
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} |
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return ($this->isValid && $that->isValid && $contentEquality) || |
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(!$this->isValid && !$that->isValid && $this->messages === $that->messages); |
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} |
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} |
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marcosh /
php-validation-dsl
This check looks for parameters that have been defined for a function or method, but which are not used in the method body.