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<?php |
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|
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/** |
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* This file is part of the ramsey/uuid library |
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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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* @copyright Copyright (c) Ben Ramsey <[email protected]> |
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* @license http://opensource.org/licenses/MIT MIT |
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*/ |
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|
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declare(strict_types=1); |
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|
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namespace Ramsey\Uuid\Math; |
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|
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use Brick\Math\BigDecimal; |
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use Brick\Math\BigInteger; |
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use Brick\Math\Exception\MathException; |
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use Brick\Math\RoundingMode as BrickMathRounding; |
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use Ramsey\Uuid\Exception\InvalidArgumentException; |
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use Ramsey\Uuid\Type\Decimal; |
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use Ramsey\Uuid\Type\Hexadecimal; |
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use Ramsey\Uuid\Type\Integer as IntegerObject; |
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use Ramsey\Uuid\Type\NumberInterface; |
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|
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/** |
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* A calculator using the brick/math library for arbitrary-precision arithmetic |
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* |
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* @psalm-immutable |
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*/ |
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final class BrickMathCalculator implements CalculatorInterface |
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{ |
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private const ROUNDING_MODE_MAP = [ |
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RoundingMode::UNNECESSARY => BrickMathRounding::UNNECESSARY, |
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RoundingMode::UP => BrickMathRounding::UP, |
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RoundingMode::DOWN => BrickMathRounding::DOWN, |
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RoundingMode::CEILING => BrickMathRounding::CEILING, |
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RoundingMode::FLOOR => BrickMathRounding::FLOOR, |
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RoundingMode::HALF_UP => BrickMathRounding::HALF_UP, |
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RoundingMode::HALF_DOWN => BrickMathRounding::HALF_DOWN, |
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RoundingMode::HALF_CEILING => BrickMathRounding::HALF_CEILING, |
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RoundingMode::HALF_FLOOR => BrickMathRounding::HALF_FLOOR, |
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RoundingMode::HALF_EVEN => BrickMathRounding::HALF_EVEN, |
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]; |
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|
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public function add(NumberInterface $augend, NumberInterface ...$addends): NumberInterface |
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{ |
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$sum = BigInteger::of($augend->toString()); |
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|
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foreach ($addends as $addend) { |
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$sum = $sum->plus($addend->toString()); |
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} |
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|
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return new IntegerObject((string) $sum); |
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} |
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|
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public function subtract(NumberInterface $minuend, NumberInterface ...$subtrahends): NumberInterface |
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{ |
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$difference = BigInteger::of($minuend->toString()); |
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|
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foreach ($subtrahends as $subtrahend) { |
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$difference = $difference->minus($subtrahend->toString()); |
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} |
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|
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return new IntegerObject((string) $difference); |
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} |
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|
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public function multiply(NumberInterface $multiplicand, NumberInterface ...$multipliers): NumberInterface |
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{ |
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$product = BigInteger::of($multiplicand->toString()); |
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|
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foreach ($multipliers as $multiplier) { |
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$product = $product->multipliedBy($multiplier->toString()); |
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} |
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|
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return new IntegerObject((string) $product); |
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} |
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|
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public function divide( |
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int $roundingMode, |
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int $scale, |
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NumberInterface $dividend, |
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NumberInterface ...$divisors |
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): NumberInterface { |
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$brickRounding = $this->getBrickRoundingMode($roundingMode); |
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|
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$quotient = BigDecimal::of($dividend->toString()); |
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|
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foreach ($divisors as $divisor) { |
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$quotient = $quotient->dividedBy($divisor->toString(), $scale, $brickRounding); |
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} |
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|
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if ($scale === 0) { |
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return new IntegerObject((string) $quotient->toBigInteger()); |
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} |
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|
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return new Decimal((string) $quotient); |
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} |
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|
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public function fromBase(string $value, int $base): IntegerObject |
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{ |
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try { |
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return new IntegerObject((string) BigInteger::fromBase($value, $base)); |
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} catch (MathException |\InvalidArgumentException $exception) { |
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throw new InvalidArgumentException( |
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$exception->getMessage(), |
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(int) $exception->getCode(), |
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$exception |
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); |
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} |
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} |
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|
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public function toBase(IntegerObject $value, int $base): string |
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{ |
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try { |
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return BigInteger::of($value->toString())->toBase($base); |
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} catch (MathException |\InvalidArgumentException $exception) { |
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throw new InvalidArgumentException( |
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$exception->getMessage(), |
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(int) $exception->getCode(), |
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$exception |
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); |
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} |
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} |
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|
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public function toHexadecimal(IntegerObject $value): Hexadecimal |
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{ |
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return new Hexadecimal($this->toBase($value, 16)); |
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} |
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|
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public function toInteger(Hexadecimal $value): IntegerObject |
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{ |
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return $this->fromBase($value->toString(), 16); |
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} |
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|
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/** |
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* Maps ramsey/uuid rounding modes to those used by brick/math |
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*/ |
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private function getBrickRoundingMode(int $roundingMode): int |
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{ |
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return self::ROUNDING_MODE_MAP[$roundingMode] ?? 0; |
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} |
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} |
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|
