Adding upstream version 0.13.1.upstream/0.13.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 572 insertions, 0 deletions

diff --git a/vendor/brick/math/src/BigNumber.php b/vendor/brick/math/src/BigNumber.php
new file mode 100644
index 0000000..38c8c55
--- /dev/null
+++ b/vendor/brick/math/src/BigNumber.php
@@ -0,0 +1,572 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Brick\Math;
+
+use Brick\Math\Exception\DivisionByZeroException;
+use Brick\Math\Exception\MathException;
+use Brick\Math\Exception\NumberFormatException;
+use Brick\Math\Exception\RoundingNecessaryException;
+
+/**
+ * Common interface for arbitrary-precision rational numbers.
+ *
+ * @psalm-immutable
+ */
+abstract class BigNumber implements \Serializable, \JsonSerializable
+{
+    /**
+     * The regular expression used to parse integer, decimal and rational numbers.
+     */
+    private const PARSE_REGEXP =
+        '/^' .
+            '(?<sign>[\-\+])?' .
+            '(?:' .
+                '(?:' .
+                    '(?<integral>[0-9]+)?' .
+                    '(?<point>\.)?' .
+                    '(?<fractional>[0-9]+)?' .
+                    '(?:[eE](?<exponent>[\-\+]?[0-9]+))?' .
+                ')|(?:' .
+                    '(?<numerator>[0-9]+)' .
+                    '\/?' .
+                    '(?<denominator>[0-9]+)' .
+                ')' .
+            ')' .
+        '$/';
+
+    /**
+     * Creates a BigNumber of the given value.
+     *
+     * The concrete return type is dependent on the given value, with the following rules:
+     *
+     * - BigNumber instances are returned as is
+     * - integer numbers are returned as BigInteger
+     * - floating point numbers are converted to a string then parsed as such
+     * - strings containing a `/` character are returned as BigRational
+     * - strings containing a `.` character or using an exponential notation are returned as BigDecimal
+     * - strings containing only digits with an optional leading `+` or `-` sign are returned as BigInteger
+     *
+     * @param BigNumber|int|float|string $value
+     *
+     * @return BigNumber
+     *
+     * @throws NumberFormatException   If the format of the number is not valid.
+     * @throws DivisionByZeroException If the value represents a rational number with a denominator of zero.
+     *
+     * @psalm-pure
+     */
+    public static function of($value) : BigNumber
+    {
+        if ($value instanceof BigNumber) {
+            return $value;
+        }
+
+        if (\is_int($value)) {
+            return new BigInteger((string) $value);
+        }
+
+        /** @psalm-suppress RedundantCastGivenDocblockType We cannot trust the untyped $value here! */
+        $value = \is_float($value) ? self::floatToString($value) : (string) $value;
+
+        $throw = static function() use ($value) : void {
+            throw new NumberFormatException(\sprintf(
+                'The given value "%s" does not represent a valid number.',
+                $value
+            ));
+        };
+
+        if (\preg_match(self::PARSE_REGEXP, $value, $matches) !== 1) {
+            $throw();
+        }
+
+        $getMatch = static function(string $value) use ($matches) : ?string {
+            return isset($matches[$value]) && $matches[$value] !== '' ? $matches[$value] : null;
+        };
+
+        $sign        = $getMatch('sign');
+        $numerator   = $getMatch('numerator');
+        $denominator = $getMatch('denominator');
+
+        if ($numerator !== null) {
+            assert($denominator !== null);
+
+            if ($sign !== null) {
+                $numerator = $sign . $numerator;
+            }
+
+            $numerator   = self::cleanUp($numerator);
+            $denominator = self::cleanUp($denominator);
+
+            if ($denominator === '0') {
+                throw DivisionByZeroException::denominatorMustNotBeZero();
+            }
+
+            return new BigRational(
+                new BigInteger($numerator),
+                new BigInteger($denominator),
+                false
+            );
+        }
+
+        $point      = $getMatch('point');
+        $integral   = $getMatch('integral');
+        $fractional = $getMatch('fractional');
+        $exponent   = $getMatch('exponent');
+
+        if ($integral === null && $fractional === null) {
+            $throw();
+        }
+
+        if ($integral === null) {
+            $integral = '0';
+        }
+
+        if ($point !== null || $exponent !== null) {
+            $fractional = ($fractional ?? '');
+            $exponent = ($exponent !== null) ? (int) $exponent : 0;
+
+            if ($exponent === PHP_INT_MIN || $exponent === PHP_INT_MAX) {
+                throw new NumberFormatException('Exponent too large.');
+            }
+
+            $unscaledValue = self::cleanUp(($sign ?? ''). $integral . $fractional);
+
+            $scale = \strlen($fractional) - $exponent;
+
+            if ($scale < 0) {
+                if ($unscaledValue !== '0') {
+                    $unscaledValue .= \str_repeat('0', - $scale);
+                }
+                $scale = 0;
+            }
+
+            return new BigDecimal($unscaledValue, $scale);
+        }
+
+        $integral = self::cleanUp(($sign ?? '') . $integral);
+
+        return new BigInteger($integral);
+    }
+
+    /**
+     * Safely converts float to string, avoiding locale-dependent issues.
+     *
+     * @see https://github.com/brick/math/pull/20
+     *
+     * @param float $float
+     *
+     * @return string
+     *
+     * @psalm-pure
+     * @psalm-suppress ImpureFunctionCall
+     */
+    private static function floatToString(float $float) : string
+    {
+        $currentLocale = \setlocale(LC_NUMERIC, '0');
+        \setlocale(LC_NUMERIC, 'C');
+
+        $result = (string) $float;
+
+        \setlocale(LC_NUMERIC, $currentLocale);
+
+        return $result;
+    }
+
+    /**
+     * Proxy method to access protected constructors from sibling classes.
+     *
+     * @internal
+     *
+     * @param mixed ...$args The arguments to the constructor.
+     *
+     * @return static
+     *
+     * @psalm-pure
+     * @psalm-suppress TooManyArguments
+     * @psalm-suppress UnsafeInstantiation
+     */
+    protected static function create(... $args) : BigNumber
+    {
+        return new static(... $args);
+    }
+
+    /**
+     * Returns the minimum of the given values.
+     *
+     * @param BigNumber|int|float|string ...$values The numbers to compare. All the numbers need to be convertible
+     *                                              to an instance of the class this method is called on.
+     *
+     * @return static The minimum value.
+     *
+     * @throws \InvalidArgumentException If no values are given.
+     * @throws MathException             If an argument is not valid.
+     *
+     * @psalm-suppress LessSpecificReturnStatement
+     * @psalm-suppress MoreSpecificReturnType
+     * @psalm-pure
+     */
+    public static function min(...$values) : BigNumber
+    {
+        $min = null;
+
+        foreach ($values as $value) {
+            $value = static::of($value);
+
+            if ($min === null || $value->isLessThan($min)) {
+                $min = $value;
+            }
+        }
+
+        if ($min === null) {
+            throw new \InvalidArgumentException(__METHOD__ . '() expects at least one value.');
+        }
+
+        return $min;
+    }
+
+    /**
+     * Returns the maximum of the given values.
+     *
+     * @param BigNumber|int|float|string ...$values The numbers to compare. All the numbers need to be convertible
+     *                                              to an instance of the class this method is called on.
+     *
+     * @return static The maximum value.
+     *
+     * @throws \InvalidArgumentException If no values are given.
+     * @throws MathException             If an argument is not valid.
+     *
+     * @psalm-suppress LessSpecificReturnStatement
+     * @psalm-suppress MoreSpecificReturnType
+     * @psalm-pure
+     */
+    public static function max(...$values) : BigNumber
+    {
+        $max = null;
+
+        foreach ($values as $value) {
+            $value = static::of($value);
+
+            if ($max === null || $value->isGreaterThan($max)) {
+                $max = $value;
+            }
+        }
+
+        if ($max === null) {
+            throw new \InvalidArgumentException(__METHOD__ . '() expects at least one value.');
+        }
+
+        return $max;
+    }
+
+    /**
+     * Returns the sum of the given values.
+     *
+     * @param BigNumber|int|float|string ...$values The numbers to add. All the numbers need to be convertible
+     *                                              to an instance of the class this method is called on.
+     *
+     * @return static The sum.
+     *
+     * @throws \InvalidArgumentException If no values are given.
+     * @throws MathException             If an argument is not valid.
+     *
+     * @psalm-suppress LessSpecificReturnStatement
+     * @psalm-suppress MoreSpecificReturnType
+     * @psalm-pure
+     */
+    public static function sum(...$values) : BigNumber
+    {
+        /** @var BigNumber|null $sum */
+        $sum = null;
+
+        foreach ($values as $value) {
+            $value = static::of($value);
+
+            $sum = $sum === null ? $value : self::add($sum, $value);
+        }
+
+        if ($sum === null) {
+            throw new \InvalidArgumentException(__METHOD__ . '() expects at least one value.');
+        }
+
+        return $sum;
+    }
+
+    /**
+     * Adds two BigNumber instances in the correct order to avoid a RoundingNecessaryException.
+     *
+     * @todo This could be better resolved by creating an abstract protected method in BigNumber, and leaving to
+     *       concrete classes the responsibility to perform the addition themselves or delegate it to the given number,
+     *       depending on their ability to perform the operation. This will also require a version bump because we're
+     *       potentially breaking custom BigNumber implementations (if any...)
+     *
+     * @param BigNumber $a
+     * @param BigNumber $b
+     *
+     * @return BigNumber
+     *
+     * @psalm-pure
+     */
+    private static function add(BigNumber $a, BigNumber $b) : BigNumber
+    {
+        if ($a instanceof BigRational) {
+            return $a->plus($b);
+        }
+
+        if ($b instanceof BigRational) {
+            return $b->plus($a);
+        }
+
+        if ($a instanceof BigDecimal) {
+            return $a->plus($b);
+        }
+
+        if ($b instanceof BigDecimal) {
+            return $b->plus($a);
+        }
+
+        /** @var BigInteger $a */
+
+        return $a->plus($b);
+    }
+
+    /**
+     * Removes optional leading zeros and + sign from the given number.
+     *
+     * @param string $number The number, validated as a non-empty string of digits with optional leading sign.
+     *
+     * @return string
+     *
+     * @psalm-pure
+     */
+    private static function cleanUp(string $number) : string
+    {
+        $firstChar = $number[0];
+
+        if ($firstChar === '+' || $firstChar === '-') {
+            $number = \substr($number, 1);
+        }
+
+        $number = \ltrim($number, '0');
+
+        if ($number === '') {
+            return '0';
+        }
+
+        if ($firstChar === '-') {
+            return '-' . $number;
+        }
+
+        return $number;
+    }
+
+    /**
+     * Checks if this number is equal to the given one.
+     *
+     * @param BigNumber|int|float|string $that
+     *
+     * @return bool
+     */
+    public function isEqualTo($that) : bool
+    {
+        return $this->compareTo($that) === 0;
+    }
+
+    /**
+     * Checks if this number is strictly lower than the given one.
+     *
+     * @param BigNumber|int|float|string $that
+     *
+     * @return bool
+     */
+    public function isLessThan($that) : bool
+    {
+        return $this->compareTo($that) < 0;
+    }
+
+    /**
+     * Checks if this number is lower than or equal to the given one.
+     *
+     * @param BigNumber|int|float|string $that
+     *
+     * @return bool
+     */
+    public function isLessThanOrEqualTo($that) : bool
+    {
+        return $this->compareTo($that) <= 0;
+    }
+
+    /**
+     * Checks if this number is strictly greater than the given one.
+     *
+     * @param BigNumber|int|float|string $that
+     *
+     * @return bool
+     */
+    public function isGreaterThan($that) : bool
+    {
+        return $this->compareTo($that) > 0;
+    }
+
+    /**
+     * Checks if this number is greater than or equal to the given one.
+     *
+     * @param BigNumber|int|float|string $that
+     *
+     * @return bool
+     */
+    public function isGreaterThanOrEqualTo($that) : bool
+    {
+        return $this->compareTo($that) >= 0;
+    }
+
+    /**
+     * Checks if this number equals zero.
+     *
+     * @return bool
+     */
+    public function isZero() : bool
+    {
+        return $this->getSign() === 0;
+    }
+
+    /**
+     * Checks if this number is strictly negative.
+     *
+     * @return bool
+     */
+    public function isNegative() : bool
+    {
+        return $this->getSign() < 0;
+    }
+
+    /**
+     * Checks if this number is negative or zero.
+     *
+     * @return bool
+     */
+    public function isNegativeOrZero() : bool
+    {
+        return $this->getSign() <= 0;
+    }
+
+    /**
+     * Checks if this number is strictly positive.
+     *
+     * @return bool
+     */
+    public function isPositive() : bool
+    {
+        return $this->getSign() > 0;
+    }
+
+    /**
+     * Checks if this number is positive or zero.
+     *
+     * @return bool
+     */
+    public function isPositiveOrZero() : bool
+    {
+        return $this->getSign() >= 0;
+    }
+
+    /**
+     * Returns the sign of this number.
+     *
+     * @return int -1 if the number is negative, 0 if zero, 1 if positive.
+     */
+    abstract public function getSign() : int;
+
+    /**
+     * Compares this number to the given one.
+     *
+     * @param BigNumber|int|float|string $that
+     *
+     * @return int [-1,0,1] If `$this` is lower than, equal to, or greater than `$that`.
+     *
+     * @throws MathException If the number is not valid.
+     */
+    abstract public function compareTo($that) : int;
+
+    /**
+     * Converts this number to a BigInteger.
+     *
+     * @return BigInteger The converted number.
+     *
+     * @throws RoundingNecessaryException If this number cannot be converted to a BigInteger without rounding.
+     */
+    abstract public function toBigInteger() : BigInteger;
+
+    /**
+     * Converts this number to a BigDecimal.
+     *
+     * @return BigDecimal The converted number.
+     *
+     * @throws RoundingNecessaryException If this number cannot be converted to a BigDecimal without rounding.
+     */
+    abstract public function toBigDecimal() : BigDecimal;
+
+    /**
+     * Converts this number to a BigRational.
+     *
+     * @return BigRational The converted number.
+     */
+    abstract public function toBigRational() : BigRational;
+
+    /**
+     * Converts this number to a BigDecimal with the given scale, using rounding if necessary.
+     *
+     * @param int $scale        The scale of the resulting `BigDecimal`.
+     * @param int $roundingMode A `RoundingMode` constant.
+     *
+     * @return BigDecimal
+     *
+     * @throws RoundingNecessaryException If this number cannot be converted to the given scale without rounding.
+     *                                    This only applies when RoundingMode::UNNECESSARY is used.
+     */
+    abstract public function toScale(int $scale, int $roundingMode = RoundingMode::UNNECESSARY) : BigDecimal;
+
+    /**
+     * Returns the exact value of this number as a native integer.
+     *
+     * If this number cannot be converted to a native integer without losing precision, an exception is thrown.
+     * Note that the acceptable range for an integer depends on the platform and differs for 32-bit and 64-bit.
+     *
+     * @return int The converted value.
+     *
+     * @throws MathException If this number cannot be exactly converted to a native integer.
+     */
+    abstract public function toInt() : int;
+
+    /**
+     * Returns an approximation of this number as a floating-point value.
+     *
+     * Note that this method can discard information as the precision of a floating-point value
+     * is inherently limited.
+     *
+     * If the number is greater than the largest representable floating point number, positive infinity is returned.
+     * If the number is less than the smallest representable floating point number, negative infinity is returned.
+     *
+     * @return float The converted value.
+     */
+    abstract public function toFloat() : float;
+
+    /**
+     * Returns a string representation of this number.
+     *
+     * The output of this method can be parsed by the `of()` factory method;
+     * this will yield an object equal to this one, without any information loss.
+     *
+     * @return string
+     */
+    abstract public function __toString() : string;
+
+    /**
+     * {@inheritdoc}
+     */
+    public function jsonSerialize() : string
+    {
+        return $this->__toString();
+    }
+}