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<?php |
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|
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namespace FluentCart\Framework\Container; |
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|
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use Countable; |
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use IteratorAggregate; |
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|
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class RewindableGenerator implements Countable, IteratorAggregate |
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{ |
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/** |
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* The generator callback. |
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* |
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* @var callable |
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*/ |
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protected $generator; |
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|
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/** |
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* The number of tagged services. |
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* |
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* @var callable|int |
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*/ |
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protected $count; |
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|
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/** |
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* Create a new generator instance. |
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* |
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* @param callable $generator |
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* @param callable|int $count |
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* @return void |
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*/ |
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public function __construct(callable $generator, $count) |
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{ |
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$this->count = $count; |
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$this->generator = $generator; |
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} |
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|
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/** |
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* Get an iterator from the generator. |
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* |
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* @return mixed |
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*/ |
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#[\ReturnTypeWillChange] |
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public function getIterator() |
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{ |
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return ($this->generator)(); |
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} |
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|
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/** |
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* Get the total number of tagged services. |
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* |
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* @return int |
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*/ |
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#[\ReturnTypeWillChange] |
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public function count() |
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{ |
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if (is_callable($count = $this->count)) { |
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$this->count = $count(); |
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} |
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|
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return $this->count; |
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} |
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} |
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|