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<?php |
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/** |
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* This file is part of Railt package. |
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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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declare(strict_types=1); |
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namespace Railt\SDL\Ast\Generic; |
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use Railt\SDL\Ast\Node; |
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/** |
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* Class Collection |
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*/ |
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abstract class Collection extends Node implements \ArrayAccess, \Countable |
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{ |
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/** |
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* @var array|Node[] |
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*/ |
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private array $items = []; |
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/** |
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* @var \Closure|null |
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*/ |
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private ?\Closure $generic = null; |
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/** |
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* Collection constructor. |
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* |
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* @param \Closure $generic |
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* @param array $items |
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* @throws \TypeError |
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*/ |
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public function __construct(\Closure $generic, array $items = []) |
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{ |
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$this->generic = $generic; |
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foreach ($items as $key => $item) { |
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$this->items[$key] = $this->assert($item); |
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} |
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} |
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/** |
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* @param int $name |
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* @param mixed $value |
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* @return void |
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*/ |
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public function __set(int $name, $value): void |
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{ |
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$this->items[$name] = $value; |
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} |
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/** |
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* @param mixed $value |
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* @return mixed |
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* @throws \TypeError |
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*/ |
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private function assert($value) |
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{ |
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if (! ($this->generic)($value)) { |
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$type = \is_object($value) ? \get_class($value) : \gettype($value); |
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throw new \TypeError(\sprintf('A type %s can not be a part of %s', $type, static::class)); |
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} |
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return $value; |
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} |
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/** |
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* @return \Traversable|Node[] |
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*/ |
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public function getIterator(): \Traversable |
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{ |
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return new \ArrayIterator($this->items); |
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} |
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/** |
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* @param int|string $offset |
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* @return bool |
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*/ |
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public function offsetExists($offset): bool |
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{ |
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\assert(\is_int($offset) || \is_string($offset)); |
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return \array_key_exists($offset, $this->items); |
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} |
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/** |
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* @param int|string $offset |
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* @return mixed|null |
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*/ |
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public function offsetGet($offset) |
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{ |
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\assert(\is_int($offset) || \is_string($offset)); |
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return $this->items[$offset] ?? null; |
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} |
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/** |
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* @param int|string $offset |
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* @param mixed $value |
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* @return void |
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* @throws \TypeError |
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*/ |
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public function offsetSet($offset, $value): void |
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{ |
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\assert(\is_int($offset) || \is_string($offset)); |
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$this->items[$offset] = $this->assert($value); |
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} |
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/** |
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* @param int|string $offset |
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* @return void |
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*/ |
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public function offsetUnset($offset): void |
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{ |
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\assert(\is_int($offset) || \is_string($offset)); |
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unset($this->items[$offset]); |
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} |
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/** |
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* @return int |
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*/ |
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public function count(): int |
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{ |
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return \count($this->items); |
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} |
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/** |
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* @return array |
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*/ |
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public function jsonSerialize(): array |
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{ |
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return $this->items; |
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} |
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} |
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railt /
sdl
