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<?php |
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/** |
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* @author Maxim Sokolovsky |
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*/ |
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namespace WS\Utils\Collections; |
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use OutOfRangeException; |
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class ArrayList extends AbstractCollection implements ListSequence |
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{ |
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public function stream(): Stream |
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{ |
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return new SerialStream($this); |
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} |
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public function get(int $index) |
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{ |
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return $this->elements[$index]; |
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} |
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public function set($element, int $index) |
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{ |
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if (!isset($this->elements[$index])) { |
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throw new OutOfRangeException("Index $index is out of list range with size: {$this->size()} "); |
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} |
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$res = $this->elements[$index]; |
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$this->elements[$index] = $element; |
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$this->afterElementAdd($element); |
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return $res; |
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} |
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public function indexOf($element): ?int |
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{ |
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return array_search($element, $this->elements, true) ?: null; |
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} |
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public function remove($element): bool |
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{ |
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if (is_object($element) && $element instanceof HashCodeAware) { |
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return $this->removeThroughHashCode($element); |
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} |
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$key = array_search($element, $this->elements, true); |
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if (false === $key) { |
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return false; |
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} |
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$this->removeAt($key); |
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return true; |
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} |
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public function lastIndexOf($element): ?int |
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{ |
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$reverseIndex = array_search($element, array_reverse($this->elements), true); |
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if ($reverseIndex === false) { |
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return null; |
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} |
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return count($this->elements) - $reverseIndex - 1; |
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} |
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public function removeAt(int $index) |
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{ |
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$size = $this->size(); |
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if ($index >= $size) { |
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return null; |
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} |
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$el = $this->elements[$index]; |
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unset($this->elements[$index]); |
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$this->pointer--; |
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if ($this->pointer === -1) { |
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return $el; |
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} |
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$this->elements = array_merge( |
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array_slice($this->elements, 0, $index), |
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array_slice($this->elements, $index) |
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); |
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return $el; |
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} |
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private function removeThroughHashCode(HashCodeAware $element): bool |
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{ |
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foreach ($this->elements as $i => $iElement) { |
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if ($iElement instanceof HashCodeAware && $iElement->getHashCode() === $element->getHashCode()) { |
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$this->removeAt($i); |
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return true; |
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} |
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} |
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return false; |
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} |
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protected function afterElementAdd($element): void |
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{ |
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} |
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protected function afterElementsSet(): void |
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{ |
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} |
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} |
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worksolutions /
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