vendor/maxmind-db/reader/src/MaxMind/Db/Reader/Decoder.php

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<?php

declare(strict_types=1);

namespace MaxMind\Db\Reader;

// @codingStandardsIgnoreLine
use RuntimeException;

class Decoder
{
    /**
     * @var resource
     */
    private $fileStream;
    /**
     * @var int
     */
    private $pointerBase;
    /**
     * @var float
     */
    private $pointerBaseByteSize;
    /**
     * This is only used for unit testing.
     *
     * @var bool
     */
    private $pointerTestHack;
    /**
     * @var bool
     */
    private $switchByteOrder;

    private const _EXTENDED = 0;
    private const _POINTER = 1;
    private const _UTF8_STRING = 2;
    private const _DOUBLE = 3;
    private const _BYTES = 4;
    private const _UINT16 = 5;
    private const _UINT32 = 6;
    private const _MAP = 7;
    private const _INT32 = 8;
    private const _UINT64 = 9;
    private const _UINT128 = 10;
    private const _ARRAY = 11;
    private const _CONTAINER = 12;
    private const _END_MARKER = 13;
    private const _BOOLEAN = 14;
    private const _FLOAT = 15;

    /**
     * @param resource $fileStream
     */
    public function __construct(
        $fileStream,
        int $pointerBase = 0,
        bool $pointerTestHack = false
    ) {
        $this->fileStream = $fileStream;