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googleanalytics / lib / analytics-admin / vendor / ramsey / uuid / src / Math / BrickMathCalculator.php

googleanalytics / lib / analytics-admin / vendor / ramsey / uuid / src / Math Last commit date

BrickMathCalculator.php 3 years ago CalculatorInterface.php 3 years ago RoundingMode.php 3 years ago

BrickMathCalculator.php

145 lines

1	<?php
2
3	/**
4	* This file is part of the ramsey/uuid library
5	*
6	* For the full copyright and license information, please view the LICENSE
7	* file that was distributed with this source code.
8	*
9	* @copyright Copyright (c) Ben Ramsey <ben@benramsey.com>
10	* @license http://opensource.org/licenses/MIT MIT
11	*/
12
13	declare(strict_types=1);
14
15	namespace Ramsey\Uuid\Math;
16
17	use Brick\Math\BigDecimal;
18	use Brick\Math\BigInteger;
19	use Brick\Math\Exception\MathException;
20	use Brick\Math\RoundingMode as BrickMathRounding;
21	use Ramsey\Uuid\Exception\InvalidArgumentException;
22	use Ramsey\Uuid\Type\Decimal;
23	use Ramsey\Uuid\Type\Hexadecimal;
24	use Ramsey\Uuid\Type\Integer as IntegerObject;
25	use Ramsey\Uuid\Type\NumberInterface;
26
27	/**
28	* A calculator using the brick/math library for arbitrary-precision arithmetic
29	*
30	* @psalm-immutable
31	*/
32	final class BrickMathCalculator implements CalculatorInterface
33	{
34	private const ROUNDING_MODE_MAP = [
35	RoundingMode::UNNECESSARY => BrickMathRounding::UNNECESSARY,
36	RoundingMode::UP => BrickMathRounding::UP,
37	RoundingMode::DOWN => BrickMathRounding::DOWN,
38	RoundingMode::CEILING => BrickMathRounding::CEILING,
39	RoundingMode::FLOOR => BrickMathRounding::FLOOR,
40	RoundingMode::HALF_UP => BrickMathRounding::HALF_UP,
41	RoundingMode::HALF_DOWN => BrickMathRounding::HALF_DOWN,
42	RoundingMode::HALF_CEILING => BrickMathRounding::HALF_CEILING,
43	RoundingMode::HALF_FLOOR => BrickMathRounding::HALF_FLOOR,
44	RoundingMode::HALF_EVEN => BrickMathRounding::HALF_EVEN,
45	];
46
47	public function add(NumberInterface $augend, NumberInterface ...$addends): NumberInterface
48	{
49	$sum = BigInteger::of($augend->toString());
50
51	foreach ($addends as $addend) {
52	$sum = $sum->plus($addend->toString());
53	}
54
55	return new IntegerObject((string) $sum);
56	}
57
58	public function subtract(NumberInterface $minuend, NumberInterface ...$subtrahends): NumberInterface
59	{
60	$difference = BigInteger::of($minuend->toString());
61
62	foreach ($subtrahends as $subtrahend) {
63	$difference = $difference->minus($subtrahend->toString());
64	}
65
66	return new IntegerObject((string) $difference);
67	}
68
69	public function multiply(NumberInterface $multiplicand, NumberInterface ...$multipliers): NumberInterface
70	{
71	$product = BigInteger::of($multiplicand->toString());
72
73	foreach ($multipliers as $multiplier) {
74	$product = $product->multipliedBy($multiplier->toString());
75	}
76
77	return new IntegerObject((string) $product);
78	}
79
80	public function divide(
81	int $roundingMode,
82	int $scale,
83	NumberInterface $dividend,
84	NumberInterface ...$divisors
85	): NumberInterface {
86	$brickRounding = $this->getBrickRoundingMode($roundingMode);
87
88	$quotient = BigDecimal::of($dividend->toString());
89
90	foreach ($divisors as $divisor) {
91	$quotient = $quotient->dividedBy($divisor->toString(), $scale, $brickRounding);
92	}
93
94	if ($scale === 0) {
95	return new IntegerObject((string) $quotient->toBigInteger());
96	}
97
98	return new Decimal((string) $quotient);
99	}
100
101	public function fromBase(string $value, int $base): IntegerObject
102	{
103	try {
104	return new IntegerObject((string) BigInteger::fromBase($value, $base));
105	} catch (MathException \| \InvalidArgumentException $exception) {
106	throw new InvalidArgumentException(
107	$exception->getMessage(),
108	(int) $exception->getCode(),
109	$exception
110	);
111	}
112	}
113
114	public function toBase(IntegerObject $value, int $base): string
115	{
116	try {
117	return BigInteger::of($value->toString())->toBase($base);
118	} catch (MathException \| \InvalidArgumentException $exception) {
119	throw new InvalidArgumentException(
120	$exception->getMessage(),
121	(int) $exception->getCode(),
122	$exception
123	);
124	}
125	}
126
127	public function toHexadecimal(IntegerObject $value): Hexadecimal
128	{
129	return new Hexadecimal($this->toBase($value, 16));
130	}
131
132	public function toInteger(Hexadecimal $value): IntegerObject
133	{
134	return $this->fromBase($value->toString(), 16);
135	}
136
137	/**
138	* Maps ramsey/uuid rounding modes to those used by brick/math
139	*/
140	private function getBrickRoundingMode(int $roundingMode): int
141	{
142	return self::ROUNDING_MODE_MAP[$roundingMode] ?? 0;
143	}
144	}
145