pradosoft /
prado
| Total Complexity | 99 |
| Total Lines | 368 |
| Duplicated Lines | 0 % |
| Changes | 1 | ||
| Bugs | 0 | Features | 0 |
Complex classes like TRational often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use TRational, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 65 | class TRational implements \ArrayAccess |
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| 66 | { |
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| 67 | public const NUMERATOR = 'numerator'; |
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| 68 | |||
| 69 | public const DENOMINATOR = 'denominator'; |
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| 70 | |||
| 71 | /* The Default Tolerance when null is provided for a tolerance */ |
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| 72 | public const DEFAULT_TOLERANCE = 1.0e-6; |
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| 73 | |||
| 74 | /** @var float|int The numerator of the rational number. default 0. */ |
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| 75 | protected $_numerator = 0; |
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| 76 | |||
| 77 | /** @var float|int The denominator of the rational number. default 1. */ |
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| 78 | protected $_denominator = 1; |
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| 79 | |||
| 80 | /** |
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| 81 | * @return bool Is the class unsigned. Returns false. |
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| 82 | */ |
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| 83 | public static function getIsUnsigned(): bool |
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| 84 | { |
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| 85 | return false; |
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| 86 | } |
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| 87 | |||
| 88 | /** |
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| 89 | * This initializes a TRational with no value [null], a float that gets deconstructed |
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| 90 | * into a numerator and denominator, a string with the numerator and denominator |
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| 91 | * with a '/' between them, an array with [0 => $numerator, 1 => $denominator], |
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| 92 | * or both the numerator and denominator as two parameters. |
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| 93 | * @param null|array|false|float|int|string $numerator Null or false as nothing, |
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| 94 | * int and float as values, array of numerator and denominator. |
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| 95 | * @param null|false|numeric $denominator The denominator. Default null for the |
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| 96 | * $numerator is a value to be deconstructed. |
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| 97 | */ |
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| 98 | public function __construct($numerator = null, $denominator = null) |
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| 99 | { |
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| 100 | if ($numerator !== null && $numerator !== false) { |
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| 101 | if ($denominator === null || $denominator === false) { |
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| 102 | $this->setValue($numerator); |
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| 103 | } else { |
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| 104 | $this->setValue([$numerator, $denominator]); |
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| 105 | } |
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| 106 | } |
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| 107 | } |
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| 108 | |||
| 109 | /** |
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| 110 | * @return float|int The numerator. |
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| 111 | */ |
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| 112 | public function getNumerator() |
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| 113 | { |
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| 114 | return $this->_numerator; |
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| 115 | } |
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| 116 | |||
| 117 | /** |
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| 118 | * @param float|int|string $value The numerator. |
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| 119 | * @return TRational Returns $this. |
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| 120 | */ |
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| 121 | public function setNumerator($value): TRational |
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| 122 | { |
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| 123 | $this->_numerator = (int) min(max(TBitHelper::PHP_INT32_MIN, $value), TBitHelper::PHP_INT32_MAX); |
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| 124 | return $this; |
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| 125 | } |
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| 126 | |||
| 127 | /** |
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| 128 | * Unless specifically set, the denominator usually only has a positive value. |
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| 129 | * @return float|int The denominator. |
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| 130 | */ |
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| 131 | public function getDenominator() |
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| 132 | { |
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| 133 | return $this->_denominator; |
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| 134 | } |
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| 135 | |||
| 136 | /** |
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| 137 | * @param float|int|string $value The denominator. |
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| 138 | * @return TRational Returns $this. |
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| 139 | */ |
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| 140 | public function setDenominator($value): TRational |
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| 141 | { |
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| 142 | $this->_denominator = (int) min(max(TBitHelper::PHP_INT32_MIN, $value), TBitHelper::PHP_INT32_MAX); |
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| 143 | return $this; |
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| 144 | } |
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| 145 | |||
| 146 | /** |
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| 147 | * This returns the float value of the Numerator divided by the denominator. |
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| 148 | * Returns INF (Infinity) float value if the {@link getNumerator Numerator} is |
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| 149 | * 0xFFFFFFFF (-1) and {@link getDenominator Denominator} is 0. Returns NAN |
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| 150 | * (Not A Number) float value if the {@link getDenominator Denominator} is zero. |
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| 151 | * @return float The float value of the Numerator divided by denominator. |
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| 152 | */ |
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| 153 | public function getValue(): float |
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| 154 | { |
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| 155 | if ($this->_numerator === -1 && $this->_denominator === 0) { |
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| 156 | return INF; |
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| 157 | } |
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| 158 | if ($this->_denominator === 0) { |
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| 159 | return NAN; |
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| 160 | } |
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| 161 | return ((float) $this->_numerator) / ((float) $this->_denominator); |
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| 162 | } |
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| 163 | |||
| 164 | /** |
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| 165 | * When setting a float value, this computes the numerator and denominator from |
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| 166 | * the Continued Fraction mathematical computation to a specific $tolerance. |
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| 167 | * @param array|numeric|string $value The numeric to compute the int numerator and |
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| 168 | * denominator, or a string in the format numerator - '/' character - and then |
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| 169 | * the denominator; eg. '511/333'. or an array of [numerator, denominator]. |
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| 170 | * @param ?float $tolerance the tolerance to compute the numerator and denominator |
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| 171 | * from the numeric $value. Default null for "1.0e-6". |
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| 172 | * @return TRational Returns $this. |
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| 173 | */ |
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| 174 | public function setValue($value, ?float $tolerance = null): TRational |
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| 175 | { |
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| 176 | $numerator = $denominator = null; |
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| 177 | if (is_array($value)) { |
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| 178 | if (array_key_exists(0, $value)) { |
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| 179 | $numerator = $value[0]; |
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| 180 | } elseif (array_key_exists(self::NUMERATOR, $value)) { |
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| 181 | $numerator = $value[self::NUMERATOR]; |
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| 182 | } else { |
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| 183 | $numerator = 0; |
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| 184 | } |
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| 185 | if (array_key_exists(1, $value)) { |
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| 186 | $denominator = $value[1]; |
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| 187 | } elseif (array_key_exists(self::DENOMINATOR, $value)) { |
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| 188 | $denominator = $value[self::DENOMINATOR]; |
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| 189 | } else { |
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| 190 | $denominator = null; |
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| 191 | } |
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| 192 | if ($denominator === null) { |
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| 193 | $value = $numerator; |
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| 194 | $numerator = null; |
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| 195 | } |
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| 196 | } elseif (is_string($value) && strpos($value, '/') !== false) { |
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| 197 | [$numerator, $denominator] = explode('/', $value, 2); |
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| 198 | } |
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| 199 | $unsigned = $this->getIsUnsigned(); |
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| 200 | if ($numerator !== null) { |
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| 201 | $numerator = (float) $numerator; |
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| 202 | $denominator = (float) $denominator; |
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| 203 | if ($unsigned) { |
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| 204 | $negNum = $numerator < 0; |
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| 205 | $negDen = $denominator < 0; |
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| 206 | if ($negNum && $negDen) { |
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| 207 | $numerator = -$numerator; |
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| 208 | $denominator = -$denominator; |
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| 209 | } elseif ($negNum ^ $negDen) { |
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| 210 | $numerator = 0; |
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| 211 | $denominator = 1; |
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| 212 | } |
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| 213 | } |
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| 214 | $max = $unsigned ? TBitHelper::PHP_INT32_UMAX : TBitHelper::PHP_INT32_MAX; |
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| 215 | if ($numerator > $max || $denominator > $max || (!$unsigned && ($numerator < TBitHelper::PHP_INT32_MIN || $denominator < TBitHelper::PHP_INT32_MIN))) { |
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| 216 | $value = ($denominator === 0) ? NAN : $numerator / $denominator; |
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| 217 | } else { |
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| 218 | $this->setNumerator($numerator); |
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| 219 | $this->setDenominator($denominator); |
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| 220 | return $this; |
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| 221 | } |
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| 222 | } |
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| 223 | if ($value !== null) { |
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| 224 | [$this->_numerator, $this->_denominator] = self::float2rational((float) $value, $tolerance, $unsigned); |
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| 225 | } |
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| 226 | return $this; |
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| 227 | } |
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| 228 | |||
| 229 | /** |
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| 230 | * @return string Returns a string of the Numerator - '/' character - and then the |
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| 231 | * denominator. eg. "13/8" |
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| 232 | */ |
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| 233 | public function __toString(): string |
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| 234 | { |
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| 235 | $n = $this->_numerator; |
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| 236 | if (is_float($n)) { |
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| 237 | $n = number_format($n, 0, '.', ''); |
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| 238 | } |
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| 239 | $d = $this->_denominator; |
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| 240 | if (is_float($d)) { |
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| 241 | $d = number_format($d, 0, '.', ''); |
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| 242 | } |
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| 243 | return $n . '/' . $d; |
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| 244 | } |
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| 245 | |||
| 246 | /** |
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| 247 | * @return array returns an array of [$numerator, $denominator] |
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| 248 | */ |
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| 249 | public function toArray() |
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| 250 | { |
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| 251 | return [$this->_numerator, $this->_denominator]; |
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| 252 | } |
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| 253 | |||
| 254 | /** |
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| 255 | * Checks for the existence of the values TRational uses: 0, 1, 'numerator', and |
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| 256 | * 'denominator'. |
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| 257 | * @param mixed $offset The numerator or denominator of the TRational. |
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| 258 | * @return bool Does the property exist for the TRational. |
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| 259 | */ |
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| 260 | public function offsetExists(mixed $offset): bool |
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| 261 | { |
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| 262 | if (is_numeric($offset) && ($offset == 0 || $offset == 1) || is_string($offset) && ($offset === self::NUMERATOR || $offset === self::DENOMINATOR)) { |
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| 263 | return true; |
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| 264 | } |
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| 265 | return false; |
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| 266 | } |
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| 267 | |||
| 268 | /** |
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| 269 | * This is a convenience method for getting the numerator and denominator. |
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| 270 | * Index '0' and 'numerator' will get the {@link getNumerator Numerator}, and |
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| 271 | * Index '1' and 'denominator' will get the {@link getDenominator Denominator}. |
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| 272 | * @param mixed $offset Which property of the Rational to retrieve. |
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| 273 | * @throws TInvalidDataValueException When $offset is not a property of the Rational. |
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| 274 | * @return mixed The numerator or denominator. |
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| 275 | */ |
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| 276 | public function offsetGet(mixed $offset): mixed |
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| 294 | } |
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| 295 | |||
| 296 | /** |
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| 297 | * This is a convenience method for setting the numerator and denominator. |
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| 298 | * Index '0' and 'numerator' will set the {@link setNumerator Numerator}, and |
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| 299 | * Index '1' and 'denominator' will set the {@link setDenominator Denominator}. |
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| 300 | * @param mixed $offset Which property to set. |
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| 301 | * @param mixed $value The numerator or denominator. |
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| 302 | * @throws TInvalidDataValueException When $offset is not a property of the Rational. |
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| 303 | */ |
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| 304 | public function offsetSet(mixed $offset, mixed $value): void |
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| 305 | { |
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| 306 | if (is_numeric($offset)) { |
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| 307 | if ($offset == 0) { |
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| 308 | $this->setNumerator($value); |
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| 309 | return; |
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| 310 | } elseif ($offset == 1) { |
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| 311 | $this->setDenominator($value); |
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| 312 | return; |
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| 313 | } |
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| 314 | } elseif (is_string($offset)) { |
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| 315 | if ($offset == self::NUMERATOR) { |
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| 316 | $this->setNumerator($value); |
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| 317 | return; |
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| 318 | } elseif ($offset == self::DENOMINATOR) { |
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| 319 | $this->setDenominator($value); |
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| 320 | return; |
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| 321 | } |
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| 322 | } elseif ($offset === null) { |
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| 323 | $this->setValue($value); |
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| 324 | return; |
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| 325 | } |
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| 326 | throw new TInvalidDataValueException('rational_bad_offset', $offset); |
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| 327 | } |
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| 328 | |||
| 329 | /** |
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| 330 | * This is a convenience method for resetting the numerator and denominator to |
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| 331 | * default. Index '0' and 'numerator' will reset the {@link setNumerator Numerator} |
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| 332 | * to "0", and Index '1' and 'denominator' will reset the {@link setDenominator |
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| 333 | * Denominator} to "1". |
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| 334 | * @param mixed $offset Which property to reset. |
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| 335 | * @throws TInvalidDataValueException When $offset is not a property of the Rational. |
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| 336 | */ |
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| 337 | public function offsetUnset(mixed $offset): void |
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| 357 | } |
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| 358 | |||
| 359 | /** |
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| 360 | * This uses the Continued Fraction to make a float into a fraction of two integers. |
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| 361 | * - Given INF, this returns [0xFFFFFFFF, 0]. |
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| 362 | * - Given NAN, this returns [0, 0]. |
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| 363 | * - Given 0 or values proximal to 0, this returns [0, 1]. |
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| 364 | * Only the numerator can go negative if the $value is negative. |
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| 365 | * @param float $value The float value to deconstruct into a fraction of two integers. |
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| 366 | * @param float $tolerance How precise does the continued fraction need to be to break. Default 1.e-6 |
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| 367 | * @param ?bool $unsigned Is the result an unsigned 32 bit int (vs signed 32 bit int), default false |
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| 368 | * @return array An array of numerator at [0] and denominator at [1]. |
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| 369 | * @see https://en.wikipedia.org/wiki/Continued_fraction |
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| 370 | */ |
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| 371 | public static function float2rational(float $value, ?float $tolerance = null, ?bool $unsigned = false): array |
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| 436 |
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The issue could also be caused by a filter entry in the build configuration. If the path has been excluded in your configuration, e.g.
excluded_paths: ["lib/*"], you can move it to the dependency path list as follows:For further information see https://scrutinizer-ci.com/docs/tools/php/php-scrutinizer/#list-dependency-paths