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<?php
declare(strict_types=1);
namespace Ivory\Data\Set;
/**
* {@inheritdoc}
*
* This implementation:
* - uses the PHP array type to store the data;
* - stores `int`s as is, `serialize`()-ing other types of data.
*/
class DictionarySet implements ISet
{
private $data = [];
protected function computeKey($value)
if (is_int($value)) {
return $value;
} else {
return serialize($value);
}
//region ISet
public function contains($value): bool
$key = $this->computeKey($value);
return isset($this->data[$key]);
public function add($value): void
$this->data[$key] = $value;
public function remove($value): void
unset($this->data[$key]);
public function clear(): void
$this->data = [];
public function toArray(): array
return array_values($this->data);
public function generateItems(): \Generator
foreach ($this->data as $item) {
yield $item;
//endregion
//region \Countable
public function count()
return count($this->data);
ondrej-bouda /
ivory
