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   1  <?php
   2  
   3  declare(strict_types=1);
   4  
   5  /*
   6   * The MIT License (MIT)
   7   *
   8   * Copyright (c) 2018-2020 Spomky-Labs
   9   *
  10   * This software may be modified and distributed under the terms
  11   * of the MIT license.  See the LICENSE file for details.
  12   */
  13  
  14  namespace CBOR;
  15  
  16  abstract class TagObject extends AbstractCBORObject
  17  {
  18      private const MAJOR_TYPE = 0b110;
  19  
  20      /**
  21       * @var string|null
  22       */
  23      protected $data;
  24  
  25      /**
  26       * @var CBORObject
  27       */
  28      protected $object;
  29  
  30      public function __construct(int $additionalInformation, ?string $data, CBORObject $object)
  31      {
  32          parent::__construct(self::MAJOR_TYPE, $additionalInformation);
  33          $this->data = $data;
  34          $this->object = $object;
  35      }
  36  
  37      public function __toString(): string
  38      {
  39          $result = parent::__toString();
  40          if (null !== $this->data) {
  41              $result .= $this->data;
  42          }
  43          $result .= (string) $this->object;
  44  
  45          return $result;
  46      }
  47  
  48      abstract public static function getTagId(): int;
  49  
  50      abstract public static function createFromLoadedData(int $additionalInformation, ?string $data, CBORObject $object): self;
  51  
  52      public function getValue(): CBORObject
  53      {
  54          return $this->object;
  55      }
  56  }