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<?php |
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namespace Nip\Collections\Typed; |
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use Nip\Collections\Exceptions\InvalidTypeException; |
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use TypeError; |
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/** |
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* Trait AbstractTypedCollectionTrait |
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* @package Nip\Collections\Typed |
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*/ |
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trait TypedCollectionTrait |
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{ |
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protected $type; |
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protected $typeChecker; |
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/** |
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* @inheritDoc |
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*/ |
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public function offsetSet($offset, $value) |
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{ |
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$this->validateItem($value); |
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parent::offsetSet($offset, $value); |
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} |
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/** |
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* @param mixed $type |
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*/ |
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public function setType($type): void |
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{ |
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if (is_string($type)) { |
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$this->type = $type; |
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switch (strtolower($type)) { |
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case 'string': |
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case 'text': |
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$this->type = StringCollection::TYPE; |
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$this->typeChecker = StringCollection::CHECKER; |
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break; |
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case 'double': |
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case 'float': |
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$this->type = FloatCollection::TYPE; |
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$this->typeChecker = FloatCollection::CHECKER; |
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break; |
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case 'array': |
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$this->type = ArrayCollection::TYPE; |
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$this->typeChecker = ArrayCollection::CHECKER; |
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break; |
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case 'resource': |
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case 'resource (closed)': |
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$this->type = ResourceCollection::TYPE; |
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$this->typeChecker = ResourceCollection::CHECKER; |
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break; |
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case 'integer': |
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case 'int': |
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$this->type = IntCollection::TYPE; |
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$this->typeChecker = IntCollection::CHECKER; |
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break; |
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case 'number': |
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$this->type = NumberCollection::TYPE; |
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$this->typeChecker = NumberCollection::CHECKER; |
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break; |
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case 'object': |
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$this->type = ObjectCollection::TYPE; |
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$this->typeChecker = ObjectCollection::CHECKER; |
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break; |
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case 'callable': |
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case 'closure': |
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case 'callback': |
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case 'function': |
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$this->type = CallableCollection::TYPE; |
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$this->typeChecker = CallableCollection::CHECKER; |
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break; |
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case 'boolean': |
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case 'bool': |
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$this->type = BooleanCollection::TYPE; |
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$this->typeChecker = BooleanCollection::CHECKER; |
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break; |
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case 'json': |
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$this->typeChecker = function ($element) { |
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if (!is_string($element)) { |
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return false; |
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} |
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if (strcasecmp($element, 'null') == 0) { |
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return true; |
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} |
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return (json_decode($element) !== null); |
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}; |
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break; |
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default: |
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// Class name |
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$this->type = $type; |
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$this->typeChecker = function ($element) use ($type) { |
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return ($element instanceof $type); |
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}; |
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} |
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} elseif (is_callable($type)) { |
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$this->typeChecker = $type; |
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} else { |
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throw new TypeError('Invalid criteria to check elements of the collection.'); |
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} |
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} |
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/** |
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* @param $sample |
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*/ |
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public function setTypeLike($sample) |
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{ |
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if ($sample === null) { |
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throw new \InvalidArgumentException('Sample element cannot be NULL'); |
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} elseif (is_object($sample)) { |
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$this->setType(get_class($sample)); |
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return; |
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} |
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$this->setType(gettype($sample)); |
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} |
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protected function validateItems(array $array): void |
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{ |
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foreach ($array as $value) { |
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$this->validateItem($value); |
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} |
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} |
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/** |
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* @param $value |
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*/ |
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27 |
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protected function validateItem($value): void |
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{ |
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if (!$this->validItem($value)) { |
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$message = $this->getErrorMessage($value) ?? "%s not valid type. Expected [%s] for %s collection!"; |
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$valueType = gettype($value); |
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if ($valueType === 'object') { |
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$valueType = get_class($value); |
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} |
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$message = sprintf( |
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$message, |
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$valueType, |
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$this->type, |
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get_called_class() |
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); |
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throw new InvalidTypeException( |
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$message |
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); |
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} |
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} |
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/** |
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* Is the item valid - overwrite if you need another check |
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* |
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* @param $item |
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* @return bool |
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*/ |
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protected function validItem($item): bool |
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{ |
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return ($this->typeChecker)($item); |
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} |
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/** |
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* @param $value |
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* @return string|null |
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*/ |
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protected function getErrorMessage($value): ?string |
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{ |
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return null; |
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} |
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} |
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bytic /
Collections
Loading history...
This check looks for function or method calls that always return null and whose return value is used.
The method
getObject()can return nothing but null, so it makes no sense to use the return value.The reason is most likely that a function or method is imcomplete or has been reduced for debug purposes.