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<?php |
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namespace BenTools\Specification; |
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use BenTools\Specification\Exception\UnmetSpecificationException; |
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use BenTools\Specification\Helper\BooleanSpecification; |
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use BenTools\Specification\Helper\CallbackSpecification; |
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use BenTools\Specification\Logical\AndSpecification; |
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use BenTools\Specification\Logical\GroupSpecification; |
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use BenTools\Specification\Logical\NotSpecification; |
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use BenTools\Specification\Logical\OrSpecification; |
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abstract class Specification |
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{ |
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/** |
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* @var string |
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*/ |
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protected $label; |
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/** |
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* @return null|string |
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*/ |
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final public function getLabel(): ?string |
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{ |
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return $this->label; |
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} |
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/** |
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* @param null|string $label |
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* @return Specification |
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*/ |
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final public function withLabel(?string $label): Specification |
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{ |
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$clone = clone $this; |
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$clone->label = $label; |
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return $clone; |
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} |
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/** |
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* @param $specification |
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* @param null|string $label |
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* @return Specification |
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* @throws \RuntimeException |
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*/ |
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final public function and($specification, ?string $label = null): Specification |
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{ |
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return new AndSpecification($this, self::factory($specification, $label), $label); |
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} |
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/** |
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* @param $specification |
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* @param null|string $label |
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* @return Specification |
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* @throws \RuntimeException |
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*/ |
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final public function or($specification, ?string $label = null): Specification |
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{ |
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return new OrSpecification($this, self::factory($specification, $label), $label); |
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} |
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/** |
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* @param null|string $label |
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* @return Specification |
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*/ |
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final public function negate(?string $label = null): Specification |
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{ |
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return new NotSpecification($this, $label); |
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} |
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/** |
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* @param null|string $label |
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* @return Specification |
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*/ |
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final public function asGroup(?string $label = null): Specification |
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{ |
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return new GroupSpecification($this, $label); |
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} |
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/** |
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* Validate the specification. |
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* If the specification is unmet the implementation MUST throw an UnmetSpecificationException. |
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* |
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* @throws UnmetSpecificationException |
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*/ |
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abstract public function validate(): void; |
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/** |
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* @param $specification |
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* @param null|string $label |
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* @return Specification |
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* @throws \RuntimeException |
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*/ |
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final public static function factory($specification, ?string $label = null): Specification |
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{ |
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if ($specification instanceof Specification) { |
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return (null !== $label && $label !== $specification->getLabel()) ? $specification->withLabel($label) : $specification; |
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} elseif (is_bool($specification)) { |
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return new BooleanSpecification($specification, $label); |
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} elseif (is_callable($specification)) { |
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return new CallbackSpecification($specification, $label); |
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} |
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throw new \RuntimeException("Unable to determine specificaton type."); |
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} |
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} |
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bpolaszek /
bentools-specification
