marc-mabe /
php-enum
| Total Complexity | 103 |
| Total Lines | 885 |
| Duplicated Lines | 0 % |
| Coverage | 100% |
| Changes | 0 | ||
Complex classes like EnumSet 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 EnumSet, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 21 | class EnumSet implements IteratorAggregate, Countable |
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| 22 | { |
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| 23 | /** |
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| 24 | * The classname of the Enumeration |
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| 25 | * @var string |
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| 26 | */ |
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| 27 | private $enumeration; |
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| 28 | |||
| 29 | /** |
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| 30 | * Number of enumerators defined in the enumeration |
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| 31 | * @var int |
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| 32 | */ |
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| 33 | private $enumerationCount; |
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| 34 | |||
| 35 | /** |
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| 36 | * Integer or binary (little endian) bitset |
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| 37 | * @var int|string |
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| 38 | */ |
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| 39 | private $bitset = 0; |
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| 40 | |||
| 41 | /**#@+ |
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| 42 | * Defines private method names to be called depended of how the bitset type was set too. |
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| 43 | * ... Integer or binary bitset. |
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| 44 | * ... *Int or *Bin method |
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| 45 | * |
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| 46 | * @var string |
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| 47 | */ |
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| 48 | private $fnDoCount = 'doCountInt'; |
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| 49 | private $fnDoGetOrdinals = 'doGetOrdinalsInt'; |
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| 50 | private $fnDoGetBit = 'doGetBitInt'; |
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| 51 | private $fnDoSetBit = 'doSetBitInt'; |
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| 52 | private $fnDoUnsetBit = 'doUnsetBitInt'; |
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| 53 | private $fnDoGetBinaryBitsetLe = 'doGetBinaryBitsetLeInt'; |
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| 54 | private $fnDoSetBinaryBitsetLe = 'doSetBinaryBitsetLeInt'; |
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| 55 | /**#@-*/ |
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| 56 | |||
| 57 | /** |
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| 58 | * Constructor |
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| 59 | * |
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| 60 | * @param string $enumeration The classname of the enumeration |
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| 61 | * @throws InvalidArgumentException |
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| 62 | */ |
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| 63 | 80 | public function __construct(string $enumeration) |
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| 91 | } |
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| 92 | 79 | } |
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| 93 | |||
| 94 | /** |
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| 95 | * Get the classname of the enumeration |
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| 96 | * @return string |
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| 97 | */ |
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| 98 | 1 | public function getEnumeration(): string |
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| 99 | { |
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| 100 | 1 | return $this->enumeration; |
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| 101 | } |
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| 102 | |||
| 103 | /** |
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| 104 | * Adds the given enumerator |
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| 105 | * @param Enum|null|bool|int|float|string|array $enumerator |
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| 106 | * @return static |
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| 107 | * @throws InvalidArgumentException On an invalid given enumerator |
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| 108 | */ |
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| 109 | 50 | public function withEnumerator($enumerator): self |
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| 110 | { |
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| 111 | 50 | $clone = clone $this; |
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| 112 | 50 | $clone->{$this->fnDoSetBit}(($this->enumeration)::get($enumerator)->getOrdinal()); |
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| 113 | 50 | return $clone; |
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| 114 | } |
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| 115 | |||
| 116 | /** |
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| 117 | * Removed an enumerator |
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| 118 | * @param Enum|null|bool|int|float|string|array $enumerator |
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| 119 | * @return static |
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| 120 | * @throws InvalidArgumentException On an invalid given enumerator |
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| 121 | */ |
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| 122 | 4 | public function withoutEnumerator($enumerator): self |
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| 123 | { |
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| 124 | 4 | $clone = clone $this; |
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| 125 | 4 | $clone->{$this->fnDoUnsetBit}(($this->enumeration)::get($enumerator)->getOrdinal()); |
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| 126 | 4 | return $clone; |
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| 127 | } |
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| 128 | |||
| 129 | /** |
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| 130 | * Test if the given enumerator exists |
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| 131 | * @param Enum|null|bool|int|float|string|array $enumerator |
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| 132 | * @return bool |
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| 133 | */ |
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| 134 | 11 | public function contains($enumerator): bool |
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| 135 | { |
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| 136 | 11 | return $this->{$this->fnDoGetBit}(($this->enumeration)::get($enumerator)->getOrdinal()); |
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| 137 | } |
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| 138 | |||
| 139 | /* IteratorAggregate */ |
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| 140 | |||
| 141 | /** |
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| 142 | * Create and return a new iterator |
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| 143 | * @return Iterator |
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| 144 | */ |
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| 145 | public function getIterator(): Iterator |
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| 146 | { |
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| 147 | return new class($this, $this->enumeration, $this->enumerationCount, $this->bitset) implements Iterator { |
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| 148 | /** |
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| 149 | * @var EnumSet |
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| 150 | */ |
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| 151 | private $enumSet; |
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| 152 | |||
| 153 | /** |
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| 154 | * @var string |
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| 155 | */ |
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| 156 | private $enumeration; |
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| 157 | |||
| 158 | /** |
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| 159 | * @var int |
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| 160 | */ |
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| 161 | private $enumerationCount; |
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| 162 | |||
| 163 | /** |
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| 164 | * @var int|string |
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| 165 | */ |
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| 166 | private $bitset; |
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| 167 | |||
| 168 | /** |
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| 169 | * @var int |
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| 170 | */ |
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| 171 | private $ordinal = -1; |
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| 172 | |||
| 173 | /** |
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| 174 | * @var string |
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| 175 | */ |
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| 176 | private $fnDoRewind = 'doRewindInt'; |
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| 177 | |||
| 178 | /** |
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| 179 | * Constructor. |
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| 180 | * @param EnumSet $enumSet |
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| 181 | * @param string $enumeration |
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| 182 | * @param int $enumerationCount |
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| 183 | * @param int|string $bitset |
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| 184 | */ |
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| 185 | 32 | public function __construct(EnumSet $enumSet, $enumeration, $enumerationCount, $bitset) |
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| 186 | { |
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| 187 | 32 | $this->enumSet = $enumSet; |
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| 188 | 32 | $this->enumeration = $enumeration; |
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| 189 | 32 | $this->enumerationCount = $enumerationCount; |
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| 190 | 32 | $this->bitset = $bitset; |
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| 191 | |||
| 192 | // By default the bitset is initialized as integer bitset |
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| 193 | // in case the enumeraton has more enumerators then integer bits |
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| 194 | // we will switch this into a binary bitset |
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| 195 | 32 | if ($this->enumerationCount > \PHP_INT_SIZE * 8) { |
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| 196 | 11 | $this->fnDoRewind = 'doRewindBin'; |
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| 197 | } |
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| 198 | |||
| 199 | // go to the first valid iterator position (if any) |
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| 200 | 32 | $this->next(); |
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| 201 | 32 | } |
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| 202 | |||
| 203 | /** |
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| 204 | * Get the current enumerator |
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| 205 | * @return Enum Returns the current enumerator object |
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| 206 | * @throws OutOfBoundsException On an invalid iterator position |
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| 207 | */ |
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| 208 | 30 | public function current(): Enum |
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| 209 | { |
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| 210 | 30 | if (!$this->valid()) { |
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| 211 | 11 | throw new OutOfBoundsException('Invalid iterator position'); |
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| 212 | } |
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| 213 | |||
| 214 | 24 | return ($this->enumeration)::byOrdinal($this->ordinal); |
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| 215 | } |
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| 216 | |||
| 217 | /** |
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| 218 | * Get the ordinal number of the current iterator position |
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| 219 | * @return int The ordinal number of the current enumerator |
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| 220 | * @throws OutOfBoundsException On an invalid iterator position |
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| 221 | */ |
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| 222 | 23 | public function key(): int |
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| 223 | { |
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| 224 | 23 | if (!$this->valid()) { |
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| 225 | 6 | throw new OutOfBoundsException('Invalid iterator position'); |
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| 226 | } |
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| 227 | |||
| 228 | 22 | return $this->ordinal; |
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| 229 | } |
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| 230 | |||
| 231 | /** |
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| 232 | * Go to the next valid iterator position. |
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| 233 | * If no valid iterator position is found the iterator position will be the last possible + 1. |
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| 234 | * @return void |
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| 235 | */ |
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| 236 | 32 | public function next(): void |
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| 237 | { |
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| 238 | do { |
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| 239 | 32 | if (++$this->ordinal >= $this->enumerationCount) { |
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| 240 | 31 | $this->ordinal = $this->enumerationCount; |
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| 241 | 31 | return; |
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| 242 | } |
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| 243 | 32 | } while (!$this->enumSet->getBit($this->ordinal)); |
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| 244 | 24 | } |
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| 245 | |||
| 246 | /** |
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| 247 | * Go to the first valid iterator position. |
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| 248 | * If no valid iterator position was found the iterator position will be 0. |
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| 249 | * @return void |
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| 250 | * @uses doRewindBin() |
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| 251 | * @uses doRewindInt() |
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| 252 | */ |
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| 253 | 19 | public function rewind(): void |
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| 254 | { |
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| 255 | 19 | $this->{$this->fnDoRewind}(); |
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| 256 | 19 | } |
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| 257 | |||
| 258 | /** |
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| 259 | * Go to the first valid iterator position. |
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| 260 | * If no valid iterator position was found the iterator position will be 0. |
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| 261 | * |
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| 262 | * This is the binary bitset implementation. |
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| 263 | * |
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| 264 | * @return void |
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| 265 | * @see rewind() |
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| 266 | * @see doRewindInt() |
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| 267 | */ |
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| 268 | 7 | private function doRewindBin(): void |
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| 269 | { |
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| 270 | 7 | if (\ltrim($this->bitset, "\0") !== '') { |
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| 271 | 5 | $this->ordinal = -1; |
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| 272 | 5 | $this->next(); |
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| 273 | } else { |
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| 274 | 2 | $this->ordinal = 0; |
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| 275 | } |
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| 276 | 7 | } |
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| 277 | |||
| 278 | /** |
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| 279 | * Go to the first valid iterator position. |
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| 280 | * If no valid iterator position was found the iterator position will be 0. |
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| 281 | * |
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| 282 | * This is the integer bitset implementation. |
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| 283 | * |
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| 284 | * @return void |
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| 285 | * @see rewind() |
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| 286 | * @see doRewindBin() |
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| 287 | */ |
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| 288 | 12 | private function doRewindInt(): void |
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| 289 | { |
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| 290 | 12 | if ($this->bitset) { |
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| 291 | 8 | $this->ordinal = -1; |
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| 292 | 8 | $this->next(); |
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| 293 | } else { |
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| 294 | 4 | $this->ordinal = 0; |
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| 295 | } |
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| 296 | 12 | } |
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| 297 | |||
| 298 | /** |
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| 299 | * Test if the current iterator position is valid |
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| 300 | * @return bool |
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| 301 | */ |
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| 302 | 32 | public function valid(): bool |
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| 303 | { |
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| 304 | 32 | return $this->ordinal !== $this->enumerationCount && $this->enumSet->getBit($this->ordinal); |
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| 305 | } |
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| 306 | }; |
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| 307 | } |
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| 308 | |||
| 309 | /* Countable */ |
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| 310 | |||
| 311 | /** |
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| 312 | * Count the number of elements |
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| 313 | * |
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| 314 | * @return int |
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| 315 | * @uses doCountBin() |
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| 316 | * @uses doCountInt() |
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| 317 | */ |
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| 318 | 15 | public function count(): int |
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| 319 | { |
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| 320 | 15 | return $this->{$this->fnDoCount}(); |
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| 321 | } |
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| 322 | |||
| 323 | /** |
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| 324 | * Count the number of elements. |
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| 325 | * |
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| 326 | * This is the binary bitset implementation. |
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| 327 | * |
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| 328 | * @return int |
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| 329 | * @see count() |
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| 330 | * @see doCountInt() |
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| 331 | */ |
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| 332 | 7 | private function doCountBin(): int |
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| 333 | { |
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| 334 | 7 | $count = 0; |
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| 335 | 7 | $bitset = $this->bitset; |
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| 336 | 7 | $byteLen = \strlen($bitset); |
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| 337 | 7 | for ($bytePos = 0; $bytePos < $byteLen; ++$bytePos) { |
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| 338 | 7 | if ($bitset[$bytePos] === "\0") { |
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| 339 | // fast skip null byte |
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| 340 | 5 | continue; |
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| 341 | } |
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| 342 | |||
| 343 | 7 | $ord = \ord($bitset[$bytePos]); |
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| 344 | 7 | if ($ord & 0b00000001) ++$count; |
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| 345 | 7 | if ($ord & 0b00000010) ++$count; |
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| 346 | 7 | if ($ord & 0b00000100) ++$count; |
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| 347 | 7 | if ($ord & 0b00001000) ++$count; |
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| 348 | 7 | if ($ord & 0b00010000) ++$count; |
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| 349 | 7 | if ($ord & 0b00100000) ++$count; |
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| 350 | 7 | if ($ord & 0b01000000) ++$count; |
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| 351 | 7 | if ($ord & 0b10000000) ++$count; |
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| 352 | } |
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| 353 | 7 | return $count; |
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| 354 | } |
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| 355 | |||
| 356 | /** |
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| 357 | * Count the number of elements. |
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| 358 | * |
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| 359 | * This is the integer bitset implementation. |
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| 360 | * |
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| 361 | * @return int |
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| 362 | * @see count() |
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| 363 | * @see doCountBin() |
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| 364 | */ |
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| 365 | 8 | private function doCountInt(): int |
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| 366 | { |
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| 367 | 8 | $count = 0; |
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| 368 | 8 | $bitset = $this->bitset; |
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| 369 | |||
| 370 | // PHP does not support right shift unsigned |
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| 371 | 8 | if ($bitset < 0) { |
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| 372 | 2 | $count = 1; |
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| 373 | 2 | $bitset = $bitset & \PHP_INT_MAX; |
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| 374 | } |
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| 375 | |||
| 376 | // iterate byte by byte and count set bits |
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| 377 | 8 | $phpIntBitSize = \PHP_INT_SIZE * 8; |
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| 378 | 8 | for ($bitPos = 0; $bitPos < $phpIntBitSize; $bitPos += 8) { |
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| 379 | 8 | $bitChk = 0xff << $bitPos; |
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| 380 | 8 | $byte = $bitset & $bitChk; |
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| 381 | 8 | if ($byte) { |
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| 382 | 7 | $byte = $byte >> $bitPos; |
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| 383 | 7 | if ($byte & 0b00000001) ++$count; |
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| 384 | 7 | if ($byte & 0b00000010) ++$count; |
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| 385 | 7 | if ($byte & 0b00000100) ++$count; |
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| 386 | 7 | if ($byte & 0b00001000) ++$count; |
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| 387 | 7 | if ($byte & 0b00010000) ++$count; |
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| 388 | 7 | if ($byte & 0b00100000) ++$count; |
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| 389 | 7 | if ($byte & 0b01000000) ++$count; |
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| 390 | 7 | if ($byte & 0b10000000) ++$count; |
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| 391 | } |
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| 392 | |||
| 393 | 8 | if ($bitset <= $bitChk) { |
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| 394 | 7 | break; |
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| 395 | } |
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| 396 | } |
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| 397 | |||
| 398 | 8 | return $count; |
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| 399 | } |
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| 400 | |||
| 401 | /** |
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| 402 | * Check if this EnumSet is the same as other |
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| 403 | * @param EnumSet $other |
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| 404 | * @return bool |
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| 405 | */ |
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| 406 | 3 | public function isEqual(EnumSet $other): bool |
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| 407 | { |
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| 408 | 3 | return $this->enumeration === $other->enumeration |
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| 409 | 3 | && $this->bitset === $other->bitset; |
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| 410 | } |
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| 411 | |||
| 412 | /** |
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| 413 | * Check if this EnumSet is a subset of other |
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| 414 | * @param EnumSet $other |
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| 415 | * @return bool |
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| 416 | */ |
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| 417 | 4 | public function isSubset(EnumSet $other): bool |
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| 418 | { |
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| 419 | 4 | return $this->enumeration === $other->enumeration |
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| 420 | 4 | && ($this->bitset & $other->bitset) === $this->bitset; |
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| 421 | } |
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| 422 | |||
| 423 | /** |
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| 424 | * Check if this EnumSet is a superset of other |
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| 425 | * @param EnumSet $other |
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| 426 | * @return bool |
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| 427 | */ |
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| 428 | 4 | public function isSuperset(EnumSet $other): bool |
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| 429 | { |
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| 430 | 4 | return $this->enumeration === $other->enumeration |
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| 431 | 4 | && ($this->bitset | $other->bitset) === $this->bitset; |
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| 432 | } |
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| 433 | |||
| 434 | /** |
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| 435 | * Produce a new set with enumerators from both this and other (this | other) |
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| 436 | * |
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| 437 | * @param EnumSet $other EnumSet of the same enumeration to produce the union |
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| 438 | * @return EnumSet |
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| 439 | * @throws InvalidArgumentException If $other doesn't match the enumeration |
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| 440 | */ |
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| 441 | 2 | public function union(EnumSet $other): EnumSet |
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| 442 | { |
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| 443 | 2 | if ($this->enumeration !== $other->enumeration) { |
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| 444 | 1 | throw new InvalidArgumentException(\sprintf( |
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| 445 | 1 | 'Other should be of the same enumeration as this %s', |
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| 446 | 1 | $this->enumeration |
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| 447 | )); |
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| 448 | } |
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| 449 | |||
| 450 | 1 | $clone = clone $this; |
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| 451 | 1 | $clone->bitset = $this->bitset | $other->bitset; |
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| 452 | 1 | return $clone; |
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| 453 | } |
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| 454 | |||
| 455 | /** |
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| 456 | * Produce a new set with enumerators common to both this and other (this & other) |
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| 457 | * |
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| 458 | * @param EnumSet $other EnumSet of the same enumeration to produce the intersect |
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| 459 | * @return EnumSet |
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| 460 | * @throws InvalidArgumentException If $other doesn't match the enumeration |
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| 461 | */ |
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| 462 | 2 | public function intersect(EnumSet $other): EnumSet |
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| 463 | { |
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| 464 | 2 | if ($this->enumeration !== $other->enumeration) { |
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| 465 | 1 | throw new InvalidArgumentException(\sprintf( |
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| 466 | 1 | 'Other should be of the same enumeration as this %s', |
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| 467 | 1 | $this->enumeration |
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| 468 | )); |
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| 469 | } |
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| 470 | |||
| 471 | 1 | $clone = clone $this; |
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| 472 | 1 | $clone->bitset = $this->bitset & $other->bitset; |
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| 473 | 1 | return $clone; |
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| 474 | } |
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| 475 | |||
| 476 | /** |
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| 477 | * Produce a new set with enumerators in this but not in other (this - other) |
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| 478 | * |
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| 479 | * @param EnumSet $other EnumSet of the same enumeration to produce the diff |
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| 480 | * @return EnumSet |
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| 481 | * @throws InvalidArgumentException If $other doesn't match the enumeration |
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| 482 | */ |
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| 483 | 2 | public function diff(EnumSet $other): EnumSet |
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| 484 | { |
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| 485 | 2 | if ($this->enumeration !== $other->enumeration) { |
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| 486 | 1 | throw new InvalidArgumentException(\sprintf( |
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| 487 | 1 | 'Other should be of the same enumeration as this %s', |
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| 488 | 1 | $this->enumeration |
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| 489 | )); |
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| 490 | } |
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| 491 | |||
| 492 | 1 | $clone = clone $this; |
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| 493 | 1 | $clone->bitset = $this->bitset & ~$other->bitset; |
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| 494 | 1 | return $clone; |
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| 495 | } |
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| 496 | |||
| 497 | /** |
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| 498 | * Produce a new set with enumerators in either this and other but not in both (this ^ other) |
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| 499 | * |
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| 500 | * @param EnumSet $other EnumSet of the same enumeration to produce the symmetric difference |
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| 501 | * @return EnumSet |
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| 502 | * @throws InvalidArgumentException If $other doesn't match the enumeration |
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| 503 | */ |
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| 504 | 2 | public function symDiff(EnumSet $other): EnumSet |
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| 505 | { |
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| 506 | 2 | if ($this->enumeration !== $other->enumeration) { |
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| 507 | 1 | throw new InvalidArgumentException(\sprintf( |
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| 508 | 1 | 'Other should be of the same enumeration as this %s', |
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| 509 | 1 | $this->enumeration |
|
| 510 | )); |
||
| 511 | } |
||
| 512 | |||
| 513 | 1 | $clone = clone $this; |
|
| 514 | 1 | $clone->bitset = $this->bitset ^ $other->bitset; |
|
| 515 | 1 | return $clone; |
|
| 516 | } |
||
| 517 | |||
| 518 | /** |
||
| 519 | * Get ordinal numbers of the defined enumerators as array |
||
| 520 | * @return int[] |
||
| 521 | * @uses doGetOrdinalsBin() |
||
| 522 | * @uses doGetOrdinalsInt() |
||
| 523 | */ |
||
| 524 | 9 | public function getOrdinals(): array |
|
| 525 | { |
||
| 526 | 9 | return $this->{$this->fnDoGetOrdinals}(); |
|
| 527 | } |
||
| 528 | |||
| 529 | /** |
||
| 530 | * Get ordinal numbers of the defined enumerators as array. |
||
| 531 | * |
||
| 532 | * This is the binary bitset implementation. |
||
| 533 | * |
||
| 534 | * @return int[] |
||
| 535 | * @see getOrdinals() |
||
| 536 | * @see goGetOrdinalsInt() |
||
| 537 | */ |
||
| 538 | 1 | private function doGetOrdinalsBin(): array |
|
| 539 | { |
||
| 540 | 1 | $ordinals = []; |
|
| 541 | 1 | $bitset = $this->bitset; |
|
| 542 | 1 | $byteLen = \strlen($bitset); |
|
| 543 | 1 | for ($bytePos = 0; $bytePos < $byteLen; ++$bytePos) { |
|
| 544 | 1 | if ($bitset[$bytePos] === "\0") { |
|
| 545 | // fast skip null byte |
||
| 546 | 1 | continue; |
|
| 547 | } |
||
| 548 | |||
| 549 | 1 | $ord = \ord($bitset[$bytePos]); |
|
| 550 | 1 | for ($bitPos = 0; $bitPos < 8; ++$bitPos) { |
|
| 551 | 1 | if ($ord & (1 << $bitPos)) { |
|
| 552 | 1 | $ordinals[] = $bytePos * 8 + $bitPos; |
|
| 553 | } |
||
| 554 | } |
||
| 555 | } |
||
| 556 | 1 | return $ordinals; |
|
| 557 | } |
||
| 558 | |||
| 559 | /** |
||
| 560 | * Get ordinal numbers of the defined enumerators as array. |
||
| 561 | * |
||
| 562 | * This is the integer bitset implementation. |
||
| 563 | * |
||
| 564 | * @return int[] |
||
| 565 | * @see getOrdinals() |
||
| 566 | * @see doGetOrdinalsBin() |
||
| 567 | */ |
||
| 568 | 8 | private function doGetOrdinalsInt(): array |
|
| 569 | { |
||
| 570 | 8 | $ordinals = []; |
|
| 571 | 8 | $ordinalMax = $this->enumerationCount; |
|
| 572 | 8 | $bitset = $this->bitset; |
|
| 573 | 8 | for ($ord = 0; $ord < $ordinalMax; ++$ord) { |
|
| 574 | 8 | if ($bitset & (1 << $ord)) { |
|
| 575 | 8 | $ordinals[] = $ord; |
|
| 576 | } |
||
| 577 | } |
||
| 578 | 8 | return $ordinals; |
|
| 579 | } |
||
| 580 | |||
| 581 | /** |
||
| 582 | * Get values of the defined enumerators as array |
||
| 583 | * @return mixed[] |
||
| 584 | */ |
||
| 585 | 5 | public function getValues(): array |
|
| 586 | { |
||
| 587 | 5 | $enumeration = $this->enumeration; |
|
| 588 | 5 | $values = []; |
|
| 589 | 5 | foreach ($this->getOrdinals() as $ord) { |
|
| 590 | 5 | $values[] = $enumeration::byOrdinal($ord)->getValue(); |
|
| 591 | } |
||
| 592 | 5 | return $values; |
|
| 593 | } |
||
| 594 | |||
| 595 | /** |
||
| 596 | * Get names of the defined enumerators as array |
||
| 597 | * @return string[] |
||
| 598 | */ |
||
| 599 | 1 | public function getNames(): array |
|
| 600 | { |
||
| 601 | 1 | $enumeration = $this->enumeration; |
|
| 602 | 1 | $names = []; |
|
| 603 | 1 | foreach ($this->getOrdinals() as $ord) { |
|
| 604 | 1 | $names[] = $enumeration::byOrdinal($ord)->getName(); |
|
| 605 | } |
||
| 606 | 1 | return $names; |
|
| 607 | } |
||
| 608 | |||
| 609 | /** |
||
| 610 | * Get the defined enumerators as array |
||
| 611 | * @return Enum[] |
||
| 612 | */ |
||
| 613 | 1 | public function getEnumerators(): array |
|
| 614 | { |
||
| 615 | 1 | $enumeration = $this->enumeration; |
|
| 616 | 1 | $enumerators = []; |
|
| 617 | 1 | foreach ($this->getOrdinals() as $ord) { |
|
| 618 | 1 | $enumerators[] = $enumeration::byOrdinal($ord); |
|
| 619 | } |
||
| 620 | 1 | return $enumerators; |
|
| 621 | } |
||
| 622 | |||
| 623 | /** |
||
| 624 | * Get binary bitset in little-endian order |
||
| 625 | * |
||
| 626 | * @return string |
||
| 627 | * @uses doGetBinaryBitsetLeBin() |
||
| 628 | * @uses doGetBinaryBitsetLeInt() |
||
| 629 | */ |
||
| 630 | 6 | public function getBinaryBitsetLe(): string |
|
| 631 | { |
||
| 632 | 6 | return $this->{$this->fnDoGetBinaryBitsetLe}(); |
|
| 633 | } |
||
| 634 | |||
| 635 | /** |
||
| 636 | * Get binary bitset in little-endian order. |
||
| 637 | * |
||
| 638 | * This is the binary bitset implementation. |
||
| 639 | * |
||
| 640 | * @return string |
||
| 641 | * @see getBinaryBitsetLe() |
||
| 642 | * @see doGetBinaryBitsetLeInt() |
||
| 643 | */ |
||
| 644 | 4 | private function doGetBinaryBitsetLeBin(): string |
|
| 645 | { |
||
| 646 | 4 | return $this->bitset; |
|
| 647 | } |
||
| 648 | |||
| 649 | /** |
||
| 650 | * Get binary bitset in little-endian order. |
||
| 651 | * |
||
| 652 | * This is the integer bitset implementation. |
||
| 653 | * |
||
| 654 | * @return string |
||
| 655 | * @see getBinaryBitsetLe() |
||
| 656 | * @see doGetBinaryBitsetLeBin() |
||
| 657 | */ |
||
| 658 | 2 | private function doGetBinaryBitsetLeInt(): string |
|
| 659 | { |
||
| 660 | 2 | $bin = \pack(\PHP_INT_SIZE === 8 ? 'P' : 'V', $this->bitset); |
|
| 661 | 2 | return \substr($bin, 0, (int)\ceil($this->enumerationCount / 8)); |
|
| 662 | } |
||
| 663 | |||
| 664 | /** |
||
| 665 | * Set binary bitset in little-endian order |
||
| 666 | * |
||
| 667 | * @param string $bitset |
||
| 668 | * @return static |
||
| 669 | * @throws InvalidArgumentException On out-of-range bits given as input bitset |
||
| 670 | * @uses doSetBinaryBitsetLeBin() |
||
| 671 | * @uses doSetBinaryBitsetLeInt() |
||
| 672 | */ |
||
| 673 | 12 | public function withBinaryBitsetLe(string $bitset): self |
|
| 674 | { |
||
| 675 | 12 | $clone = clone $this; |
|
| 676 | 12 | $clone->{$this->fnDoSetBinaryBitsetLe}($bitset); |
|
| 677 | 6 | return $clone; |
|
| 678 | } |
||
| 679 | |||
| 680 | /** |
||
| 681 | * Set binary bitset in little-endian order |
||
| 682 | * |
||
| 683 | * @param string $bitset |
||
| 684 | * @return void |
||
| 685 | * @throws InvalidArgumentException On out-of-range bits given as input bitset |
||
| 686 | * @see setBinaryBitsetLeBin() |
||
| 687 | * @see doSetBinaryBitsetLeInt() |
||
| 688 | */ |
||
| 689 | 7 | private function doSetBinaryBitsetLeBin(string $bitset): void |
|
| 690 | { |
||
| 691 | 7 | $size = \strlen($this->bitset); |
|
| 692 | 7 | $sizeIn = \strlen($bitset); |
|
| 693 | |||
| 694 | 7 | if ($sizeIn < $size) { |
|
| 695 | // add "\0" if the given bitset is not long enough |
||
| 696 | 1 | $bitset .= \str_repeat("\0", $size - $sizeIn); |
|
| 697 | 6 | } elseif ($sizeIn > $size) { |
|
| 698 | 2 | if (\ltrim(\substr($bitset, $size), "\0") !== '') { |
|
| 699 | 1 | throw new InvalidArgumentException('out-of-range bits detected'); |
|
| 700 | } |
||
| 701 | 1 | $bitset = \substr($bitset, 0, $size); |
|
| 702 | } |
||
| 703 | |||
| 704 | // truncate out-of-range bits of last byte |
||
| 705 | 6 | $lastByteMaxOrd = $this->enumerationCount % 8; |
|
| 706 | 6 | if ($lastByteMaxOrd !== 0) { |
|
| 707 | 6 | $lastByte = $bitset[-1]; |
|
| 708 | 6 | $lastByteExpected = \chr((1 << $lastByteMaxOrd) - 1) & $lastByte; |
|
| 709 | 6 | if ($lastByte !== $lastByteExpected) { |
|
| 710 | 2 | throw new InvalidArgumentException('out-of-range bits detected'); |
|
| 711 | } |
||
| 712 | |||
| 713 | 4 | $this->bitset = \substr($bitset, 0, -1) . $lastByteExpected; |
|
| 714 | } |
||
| 715 | |||
| 716 | 4 | $this->bitset = $bitset; |
|
| 717 | 4 | } |
|
| 718 | |||
| 719 | /** |
||
| 720 | * Set binary bitset in little-endian order |
||
| 721 | * |
||
| 722 | * @param string $bitset |
||
| 723 | * @return void |
||
| 724 | * @throws InvalidArgumentException On out-of-range bits given as input bitset |
||
| 725 | * @see setBinaryBitsetLeBin() |
||
| 726 | * @see doSetBinaryBitsetLeBin() |
||
| 727 | */ |
||
| 728 | 5 | private function doSetBinaryBitsetLeInt(string $bitset): void |
|
| 729 | { |
||
| 730 | 5 | $len = \strlen($bitset); |
|
| 731 | 5 | $int = 0; |
|
| 732 | 5 | for ($i = 0; $i < $len; ++$i) { |
|
| 733 | 5 | $ord = \ord($bitset[$i]); |
|
| 734 | |||
| 735 | 5 | if ($ord && $i > \PHP_INT_SIZE - 1) { |
|
| 736 | 1 | throw new InvalidArgumentException('out-of-range bits detected'); |
|
| 737 | } |
||
| 738 | |||
| 739 | 5 | $int |= $ord << (8 * $i); |
|
| 740 | } |
||
| 741 | |||
| 742 | 4 | if ($int & (~0 << $this->enumerationCount)) { |
|
| 743 | 2 | throw new InvalidArgumentException('out-of-range bits detected'); |
|
| 744 | } |
||
| 745 | |||
| 746 | 2 | $this->bitset = $int; |
|
| 747 | 2 | } |
|
| 748 | |||
| 749 | /** |
||
| 750 | * Get binary bitset in big-endian order |
||
| 751 | * |
||
| 752 | * @return string |
||
| 753 | */ |
||
| 754 | 1 | public function getBinaryBitsetBe(): string |
|
| 755 | { |
||
| 756 | 1 | return \strrev($this->bitset); |
|
| 757 | } |
||
| 758 | |||
| 759 | /** |
||
| 760 | * Set binary bitset in big-endian order |
||
| 761 | * |
||
| 762 | * @param string $bitset |
||
| 763 | * @return static |
||
| 764 | * @throws InvalidArgumentException On out-of-range bits given as input bitset |
||
| 765 | */ |
||
| 766 | 1 | public function withBinaryBitsetBe(string $bitset): self |
|
| 767 | { |
||
| 768 | 1 | return $this->withBinaryBitsetLe(\strrev($bitset)); |
|
| 769 | } |
||
| 770 | |||
| 771 | /** |
||
| 772 | * Get a bit at the given ordinal number |
||
| 773 | * |
||
| 774 | * @param int $ordinal Ordinal number of bit to get |
||
|
2 ignored issues
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|
|||
| 775 | * @return bool |
||
|
1 ignored issue
–
show
|
|||
| 776 | * @throws InvalidArgumentException If the given ordinal number is out-of-range |
||
| 777 | * @uses doGetBitBin() |
||
| 778 | * @uses doGetBitInt() |
||
| 779 | */ |
||
| 780 | 35 | public function getBit(int $ordinal): bool |
|
| 787 | } |
||
| 788 | |||
| 789 | /** |
||
| 790 | * Get a bit at the given ordinal number. |
||
| 791 | * |
||
| 792 | * This is the binary bitset implementation. |
||
| 793 | * |
||
| 794 | * @param int $ordinal Ordinal number of bit to get |
||
|
2 ignored issues
–
show
|
|||
| 795 | * @return bool |
||
|
1 ignored issue
–
show
|
|||
| 796 | * @see getBit() |
||
| 797 | * @see doGetBitInt() |
||
| 798 | */ |
||
| 799 | 14 | private function doGetBitBin(int $ordinal): bool |
|
| 800 | { |
||
| 801 | 14 | return (\ord($this->bitset[(int) ($ordinal / 8)]) & 1 << ($ordinal % 8)) !== 0; |
|
| 802 | } |
||
| 803 | |||
| 804 | /** |
||
| 805 | * Get a bit at the given ordinal number. |
||
| 806 | * |
||
| 807 | * This is the integer bitset implementation. |
||
| 808 | * |
||
| 809 | * @param int $ordinal Ordinal number of bit to get |
||
|
2 ignored issues
–
show
|
|||
| 810 | * @return bool |
||
|
1 ignored issue
–
show
|
|||
| 811 | * @see getBit() |
||
| 812 | * @see doGetBitBin() |
||
| 813 | */ |
||
| 814 | 25 | private function doGetBitInt(int $ordinal): bool |
|
| 817 | } |
||
| 818 | |||
| 819 | /** |
||
| 820 | * Set a bit at the given ordinal number |
||
| 821 | * |
||
| 822 | * @param int $ordinal Ordinal number of bit to set |
||
|
2 ignored issues
–
show
|
|||
| 823 | * @param bool $bit The bit to set |
||
|
2 ignored issues
–
show
|
|||
| 824 | * @return static |
||
| 825 | * @throws InvalidArgumentException If the given ordinal number is out-of-range |
||
| 826 | * @uses doSetBitBin() |
||
| 827 | * @uses doSetBitInt() |
||
| 828 | * @uses doUnsetBitBin() |
||
| 829 | * @uses doUnsetBitInt() |
||
| 830 | */ |
||
| 831 | 2 | public function withBit(int $ordinal, bool $bit): self |
|
| 832 | { |
||
| 833 | 2 | if ($ordinal < 0 || $ordinal > $this->enumerationCount) { |
|
| 834 | 1 | throw new InvalidArgumentException("Ordinal number must be between 0 and {$this->enumerationCount}"); |
|
|
1 ignored issue
–
show
|
|||
| 835 | } |
||
| 836 | |||
| 837 | 1 | $clone = clone $this; |
|
| 838 | 1 | if ($bit) { |
|
| 839 | 1 | $clone->{$this->fnDoSetBit}($ordinal); |
|
| 840 | } else { |
||
| 841 | 1 | $clone->{$this->fnDoUnsetBit}($ordinal); |
|
| 842 | } |
||
| 843 | 1 | return $clone; |
|
| 844 | } |
||
| 845 | |||
| 846 | /** |
||
| 847 | * Set a bit at the given ordinal number. |
||
| 848 | * |
||
| 849 | * This is the binary bitset implementation. |
||
| 850 | * |
||
| 851 | * @param int $ordinal Ordinal number of bit to set |
||
|
2 ignored issues
–
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|
|||
| 852 | * @return void |
||
| 853 | * @see setBit() |
||
| 854 | * @see doSetBitInt() |
||
| 855 | */ |
||
| 856 | 12 | private function doSetBitBin(int $ordinal): void |
|
| 857 | { |
||
| 858 | 12 | $byte = (int) ($ordinal / 8); |
|
| 859 | 12 | $this->bitset[$byte] = $this->bitset[$byte] | \chr(1 << ($ordinal % 8)); |
|
| 860 | 12 | } |
|
| 861 | |||
| 862 | /** |
||
| 863 | * Set a bit at the given ordinal number. |
||
| 864 | * |
||
| 865 | * This is the binary bitset implementation. |
||
| 866 | * |
||
| 867 | * @param int $ordinal Ordinal number of bit to set |
||
|
2 ignored issues
–
show
|
|||
| 868 | * @return void |
||
| 869 | * @see setBit() |
||
| 870 | * @see doSetBitBin() |
||
| 871 | */ |
||
| 872 | 39 | private function doSetBitInt(int $ordinal): void |
|
| 873 | { |
||
| 874 | 39 | $this->bitset = $this->bitset | (1 << $ordinal); |
|
| 875 | 39 | } |
|
| 876 | |||
| 877 | /** |
||
| 878 | * Unset a bit at the given ordinal number. |
||
| 879 | * |
||
| 880 | * This is the binary bitset implementation. |
||
| 881 | * |
||
| 882 | * @param int $ordinal Ordinal number of bit to unset |
||
|
2 ignored issues
–
show
|
|||
| 883 | * @return void |
||
| 884 | * @see setBit() |
||
| 885 | * @see doUnsetBitInt() |
||
| 886 | */ |
||
| 887 | 2 | private function doUnsetBitBin(int $ordinal): void |
|
| 888 | { |
||
| 889 | 2 | $byte = (int) ($ordinal / 8); |
|
| 890 | 2 | $this->bitset[$byte] = $this->bitset[$byte] & \chr(~(1 << ($ordinal % 8))); |
|
| 891 | 2 | } |
|
| 892 | |||
| 893 | /** |
||
| 894 | * Unset a bit at the given ordinal number. |
||
| 895 | * |
||
| 896 | * This is the integer bitset implementation. |
||
| 897 | * |
||
| 898 | * @param int $ordinal Ordinal number of bit to unset |
||
|
2 ignored issues
–
show
|
|||
| 899 | * @return void |
||
| 900 | * @see setBit() |
||
| 901 | * @see doUnsetBitBin() |
||
| 902 | */ |
||
| 903 | 3 | private function doUnsetBitInt(int $ordinal): void |
|
| 906 | 3 | } |
|
| 907 | } |
||
| 908 |
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