Completed
Pull Request — master (#23)
by Eugene
09:44
created

PackOptions::fromDefaults()   A

Complexity

Conditions 1
Paths 1

Size

Total Lines 9
Code Lines 6

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 7
CRAP Score 1

Importance

Changes 0
Metric Value
c 0
b 0
f 0
dl 0
loc 9
ccs 7
cts 7
cp 1
rs 9.6666
cc 1
eloc 6
nc 1
nop 0
crap 1
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<?php
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/*
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 * This file is part of the rybakit/msgpack.php package.
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 *
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 * (c) Eugene Leonovich <[email protected]>
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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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namespace MessagePack;
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use MessagePack\Exception\InvalidOptionException;
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final class PackOptions
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{
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    public const FORCE_STR         = 0b00000001;
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    public const FORCE_BIN         = 0b00000010;
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    public const DETECT_STR_BIN    = 0b00000100;
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    public const FORCE_ARR         = 0b00001000;
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    public const FORCE_MAP         = 0b00010000;
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    public const DETECT_ARR_MAP    = 0b00100000;
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    public const FORCE_FLOAT32     = 0b01000000;
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    public const FORCE_FLOAT64     = 0b10000000;
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    private $strBinMode;
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    private $arrMapMode;
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    private $floatMode;
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    private function __construct()
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    {
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    }
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    public static function fromDefaults() : self
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    {
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        $self = new self();
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        $self->strBinMode = self::DETECT_STR_BIN;
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        $self->arrMapMode = self::DETECT_ARR_MAP;
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        $self->floatMode = self::FORCE_FLOAT64;
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        return $self;
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    }
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    public static function fromBitmask(int $bitmask): self
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    {
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        $self = new self();
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        $self->strBinMode = self::getSingleOption('str/bin', $bitmask,
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            self::FORCE_STR |
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            self::FORCE_BIN |
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            self::DETECT_STR_BIN
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        ) ?: self::DETECT_STR_BIN;
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        $self->arrMapMode = self::getSingleOption('arr/map', $bitmask,
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            self::FORCE_ARR |
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            self::FORCE_MAP |
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            self::DETECT_ARR_MAP
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        ) ?: self::DETECT_ARR_MAP;
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        $self->floatMode = self::getSingleOption('float', $bitmask,
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            self::FORCE_FLOAT32 |
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            self::FORCE_FLOAT64
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        ) ?: self::FORCE_FLOAT64;
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        return $self;
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    }
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    public function isDetectStrBinMode() : bool
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    {
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        return self::DETECT_STR_BIN === $this->strBinMode;
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    }
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    public function isForceStrMode() : bool
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    {
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        return self::FORCE_STR === $this->strBinMode;
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    }
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    public function isDetectArrMapMode() : bool
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    {
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        return self::DETECT_ARR_MAP === $this->arrMapMode;
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    }
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    public function isForceArrMode() : bool
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    {
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        return self::FORCE_ARR === $this->arrMapMode;
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    }
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    public function isForceFloat32Mode() : bool
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    {
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        return self::FORCE_FLOAT32 === $this->floatMode;
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    }
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    private static function getSingleOption(string $name, int $bitmask, int $validBitmask) : int
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    {
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        $option = $bitmask & $validBitmask;
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        if ($option === ($option & -$option)) {
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            return $option;
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        }
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        static $map = [
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            self::FORCE_STR => 'FORCE_STR',
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            self::FORCE_BIN => 'FORCE_BIN',
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            self::DETECT_STR_BIN => 'DETECT_STR_BIN',
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            self::FORCE_ARR => 'FORCE_ARR',
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            self::FORCE_MAP => 'FORCE_MAP',
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            self::DETECT_ARR_MAP => 'DETECT_ARR_MAP',
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            self::FORCE_FLOAT32 => 'FORCE_FLOAT32',
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            self::FORCE_FLOAT64 => 'FORCE_FLOAT64',
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        ];
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        $validOptions = [];
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        for ($i = $validBitmask & -$validBitmask; $i <= $validBitmask; $i <<= 1) {
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            $validOptions[] = __CLASS__.'::'.$map[$i];
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        }
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        throw InvalidOptionException::fromValidOptions($name, $validOptions);
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    }
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}
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