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<?php |
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|
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/** |
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* This file is part of the ramsey/collection library |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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* |
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* @copyright Copyright (c) Ben Ramsey <[email protected]> |
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* @license http://opensource.org/licenses/MIT MIT |
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*/ |
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|
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declare(strict_types=1); |
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|
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namespace Ramsey\Collection; |
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|
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/** |
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* This class contains the basic implementation of a collection that does not |
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* allow duplicated values (a set), to minimize the effort required to implement |
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* this specific type of collection. |
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* |
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* @template T |
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* @template-extends AbstractCollection<T> |
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*/ |
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abstract class AbstractSet extends AbstractCollection |
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{ |
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/** |
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* @inheritDoc |
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*/ |
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public function add($element): bool |
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{ |
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if ($this->contains($element)) { |
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return false; |
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} |
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|
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return parent::add($element); |
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} |
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|
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/** |
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* @inheritDoc |
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*/ |
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public function offsetSet($offset, $value): void |
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{ |
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if ($this->contains($value)) { |
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return; |
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} |
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|
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parent::offsetSet($offset, $value); |
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} |
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} |
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|
