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<?php declare(strict_types=1); /* * The MIT License (MIT) * * Copyright (c) 2018-2020 Spomky-Labs * * This software may be modified and distributed under the terms * of the MIT license. See the LICENSE file for details. */ namespace CBOR; use function array_key_exists; use ArrayIterator; use function count; use Countable; use InvalidArgumentException; use Iterator; use IteratorAggregate; class ListObject extends AbstractCBORObject implements Countable, IteratorAggregate { private const MAJOR_TYPE = 0b100; /** * @var CBORObject[] */ private $data = []; /** * @var int|null */ private $length; /** * @param CBORObject[] $data */ public function __construct(array $data = []) { list($additionalInformation, $length) = LengthCalculator::getLengthOfArray($data); array_map(static function ($item): void { if (!$item instanceof CBORObject) { throw new InvalidArgumentException('The list must contain only CBORObject objects.'); } }, $data); parent::__construct(self::MAJOR_TYPE, $additionalInformation); $this->data = $data; $this->length = $length; } public function __toString(): string { $result = parent::__toString(); if (null !== $this->length) { $result .= $this->length; } foreach ($this->data as $object) { $result .= (string) $object; } return $result; } public function add(CBORObject $object): void { $this->data[] = $object; list($this->additionalInformation, $this->length) = LengthCalculator::getLengthOfArray($this->data); } public function get(int $index): CBORObject { if (!array_key_exists($index, $this->data)) { throw new InvalidArgumentException('Index not found.'); } return $this->data[$index]; } public function getNormalizedData(bool $ignoreTags = false): array { return array_map(function (CBORObject $item) use ($ignoreTags) { return $item->getNormalizedData($ignoreTags); }, $this->data); } public function count(): int { return count($this->data); } public function getIterator(): Iterator { return new ArrayIterator($this->data); } }