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<?php |
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declare(strict_types=1); |
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namespace Shoman4eg\Nalog\Model; |
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/** |
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* @author Artem Dubinin <[email protected]> |
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* |
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* @template T |
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* |
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* @template-implements \ArrayAccess<int, T> |
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* @template-implements \Iterator<int, T> |
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*/ |
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abstract class AbstractCollection implements \ArrayAccess, \Countable, \Iterator |
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{ |
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/** @var array<int, T> */ |
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private array $items = []; |
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private int $key; |
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private int $count; |
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/** |
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* @return null|T |
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*/ |
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public function current() |
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{ |
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return $this->offsetGet($this->key); |
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} |
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public function next(): void |
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{ |
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++$this->key; |
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} |
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public function key(): ?int |
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{ |
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if (!$this->valid()) { |
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return null; |
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} |
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return $this->key; |
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} |
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public function valid(): bool |
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{ |
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return $this->key < $this->count; |
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} |
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public function rewind(): void |
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{ |
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$this->key = 0; |
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} |
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public function offsetExists($offset): bool |
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{ |
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return isset($this->items[$offset]); |
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} |
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/** |
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* @param int $offset |
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* |
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* @return T |
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*/ |
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public function offsetGet($offset) |
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{ |
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if (!$this->offsetExists($offset)) { |
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throw new \RuntimeException(sprintf('Key "%s" does not exist in collection', $offset)); |
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} |
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return $this->items[$offset]; |
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} |
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public function offsetSet($offset, $value): void |
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{ |
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throw new \RuntimeException('Cannot set value on READ ONLY collection'); |
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} |
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public function offsetUnset($offset): void |
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{ |
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throw new \RuntimeException('Cannot unset value on READ ONLY collection'); |
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} |
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public function count(): int |
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{ |
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return $this->count; |
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} |
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protected function setItems(array $items): void |
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{ |
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if ($this->items !== []) { |
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throw new \LogicException('AbstractCollection::setItems can only be called once.'); |
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} |
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$this->items = array_values($items); |
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$this->count = count($items); |
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$this->key = 0; |
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} |
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} |
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shoman4eg /
moy-nalog
