| Total Complexity | 101 |
| Total Lines | 779 |
| 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 $fnDoGetIterator = 'doGetIteratorInt'; |
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| 49 | private $fnDoCount = 'doCountInt'; |
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| 50 | private $fnDoGetOrdinals = 'doGetOrdinalsInt'; |
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| 51 | private $fnDoGetBit = 'doGetBitInt'; |
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| 52 | private $fnDoSetBit = 'doSetBitInt'; |
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| 53 | private $fnDoUnsetBit = 'doUnsetBitInt'; |
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| 54 | private $fnDoGetBinaryBitsetLe = 'doGetBinaryBitsetLeInt'; |
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| 55 | private $fnDoSetBinaryBitsetLe = 'doSetBinaryBitsetLeInt'; |
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| 56 | /**#@-*/ |
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| 57 | |||
| 58 | /** |
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| 59 | * Constructor |
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| 60 | * |
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| 61 | * @param string $enumeration The classname of the enumeration |
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| 62 | * @throws InvalidArgumentException |
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| 63 | */ |
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| 64 | 65 | public function __construct(string $enumeration) |
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| 65 | { |
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| 66 | 65 | if (!\is_subclass_of($enumeration, Enum::class)) { |
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| 67 | 1 | throw new InvalidArgumentException(\sprintf( |
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| 68 | 1 | '%s can handle subclasses of %s only', |
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| 69 | 1 | __METHOD__, |
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| 70 | 1 | Enum::class |
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| 71 | )); |
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| 72 | } |
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| 73 | |||
| 74 | 64 | $this->enumeration = $enumeration; |
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| 75 | 64 | $this->enumerationCount = \count($enumeration::getConstants()); |
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| 76 | |||
| 77 | // By default the bitset is initialized as integer bitset |
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| 78 | // in case the enumeraton has more enumerators then integer bits |
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| 79 | // we will switch this into a binary bitset |
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| 80 | 64 | if ($this->enumerationCount > \PHP_INT_SIZE * 8) { |
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| 81 | // init binary bitset with zeros |
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| 82 | 15 | $this->bitset = \str_repeat("\0", (int)\ceil($this->enumerationCount / 8)); |
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| 83 | |||
| 84 | // switch internal binary bitset functions |
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| 85 | 15 | $this->fnDoGetIterator = 'doGetIteratorBin'; |
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| 86 | 15 | $this->fnDoCount = 'doCountBin'; |
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| 87 | 15 | $this->fnDoGetOrdinals = 'doGetOrdinalsBin'; |
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| 88 | 15 | $this->fnDoGetBit = 'doGetBitBin'; |
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| 89 | 15 | $this->fnDoSetBit = 'doSetBitBin'; |
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| 90 | 15 | $this->fnDoUnsetBit = 'doUnsetBitBin'; |
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| 91 | 15 | $this->fnDoGetBinaryBitsetLe = 'doGetBinaryBitsetLeBin'; |
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| 92 | 15 | $this->fnDoSetBinaryBitsetLe = 'doSetBinaryBitsetLeBin'; |
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| 93 | } |
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| 94 | 64 | } |
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| 95 | |||
| 96 | /** |
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| 97 | * Get the classname of the enumeration |
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| 98 | * @return string |
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| 99 | */ |
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| 100 | 1 | public function getEnumeration(): string |
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| 101 | { |
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| 102 | 1 | return $this->enumeration; |
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| 103 | } |
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| 104 | |||
| 105 | /** |
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| 106 | * Adds the given enumerator |
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| 107 | * @param Enum|null|bool|int|float|string|array $enumerator |
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| 108 | * @return static |
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| 109 | * @throws InvalidArgumentException On an invalid given enumerator |
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| 110 | */ |
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| 111 | 41 | public function withEnumerator($enumerator): self |
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| 112 | { |
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| 113 | 41 | $clone = clone $this; |
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| 114 | 41 | $clone->{$this->fnDoSetBit}(($this->enumeration)::get($enumerator)->getOrdinal()); |
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| 115 | 41 | return $clone; |
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| 116 | } |
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| 117 | |||
| 118 | /** |
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| 119 | * Removed an enumerator |
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| 120 | * @param Enum|null|bool|int|float|string|array $enumerator |
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| 121 | * @return static |
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| 122 | * @throws InvalidArgumentException On an invalid given enumerator |
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| 123 | */ |
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| 124 | 4 | public function withoutEnumerator($enumerator): self |
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| 125 | { |
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| 126 | 4 | $clone = clone $this; |
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| 127 | 4 | $clone->{$this->fnDoUnsetBit}(($this->enumeration)::get($enumerator)->getOrdinal()); |
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| 128 | 4 | return $clone; |
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| 129 | } |
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| 130 | |||
| 131 | /** |
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| 132 | * Test if the given enumerator exists |
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| 133 | * @param Enum|null|bool|int|float|string|array $enumerator |
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| 134 | * @return bool |
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| 135 | */ |
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| 136 | 11 | public function contains($enumerator): bool |
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| 139 | } |
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| 140 | |||
| 141 | /* IteratorAggregate */ |
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| 142 | |||
| 143 | /** |
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| 144 | * Get a new iterator |
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| 145 | * @return Iterator |
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| 146 | * @uses doGetIteratorInt() |
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| 147 | * @uses doGetIteratorBin() |
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| 148 | */ |
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| 149 | 17 | public function getIterator(): Iterator |
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| 150 | { |
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| 151 | 17 | return $this->{$this->fnDoGetIterator}(); |
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| 152 | } |
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| 153 | |||
| 154 | /** |
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| 155 | * Get a new Iterator. |
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| 156 | * |
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| 157 | * This is the binary bitset implementation. |
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| 158 | * |
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| 159 | * @return Iterator |
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| 160 | * @see getIterator() |
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| 161 | * @see goGetIteratorInt() |
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| 162 | */ |
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| 163 | 5 | private function doGetIteratorBin(): Iterator |
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| 164 | { |
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| 165 | 5 | $bitset = $this->bitset; |
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| 166 | 5 | $byteLen = \strlen($bitset); |
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| 167 | 5 | for ($bytePos = 0; $bytePos < $byteLen; ++$bytePos) { |
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| 168 | 5 | if ($bitset[$bytePos] === "\0") { |
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| 169 | // fast skip null byte |
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| 170 | 3 | continue; |
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| 171 | } |
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| 172 | |||
| 173 | 5 | $ord = \ord($bitset[$bytePos]); |
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| 174 | 5 | for ($bitPos = 0; $bitPos < 8; ++$bitPos) { |
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| 175 | 5 | if ($ord & (1 << $bitPos)) { |
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| 176 | 5 | $ordinal = $bytePos * 8 + $bitPos; |
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| 177 | 5 | yield $ordinal => ($this->enumeration)::byOrdinal($ordinal); |
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| 178 | } |
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| 179 | } |
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| 180 | } |
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| 181 | 5 | } |
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| 182 | |||
| 183 | /** |
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| 184 | * Get a new Iterator. |
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| 185 | * |
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| 186 | * This is the integer bitset implementation. |
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| 187 | * |
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| 188 | * @return Iterator |
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| 189 | * @see getIterator() |
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| 190 | * @see doGetIteratorBin() |
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| 191 | */ |
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| 192 | 12 | private function doGetIteratorInt(): Iterator |
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| 193 | { |
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| 194 | 12 | $count = $this->enumerationCount; |
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| 195 | 12 | $bitset = $this->bitset; |
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| 196 | 12 | for ($ordinal = 0; $ordinal < $count; ++$ordinal) { |
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| 197 | 12 | if ($bitset & (1 << $ordinal)) { |
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| 198 | 10 | yield $ordinal => ($this->enumeration)::byOrdinal($ordinal); |
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| 199 | } |
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| 200 | } |
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| 201 | 10 | } |
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| 202 | |||
| 203 | /* Countable */ |
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| 204 | |||
| 205 | /** |
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| 206 | * Count the number of elements |
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| 207 | * |
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| 208 | * @return int |
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| 209 | * @uses doCountBin() |
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| 210 | * @uses doCountInt() |
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| 211 | */ |
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| 212 | 15 | public function count(): int |
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| 213 | { |
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| 214 | 15 | return $this->{$this->fnDoCount}(); |
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| 215 | } |
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| 216 | |||
| 217 | /** |
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| 218 | * Count the number of elements. |
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| 219 | * |
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| 220 | * This is the binary bitset implementation. |
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| 221 | * |
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| 222 | * @return int |
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| 223 | * @see count() |
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| 224 | * @see doCountInt() |
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| 225 | */ |
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| 226 | 7 | private function doCountBin(): int |
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| 227 | { |
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| 228 | 7 | $count = 0; |
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| 229 | 7 | $bitset = $this->bitset; |
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| 230 | 7 | $byteLen = \strlen($bitset); |
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| 231 | 7 | for ($bytePos = 0; $bytePos < $byteLen; ++$bytePos) { |
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| 232 | 7 | if ($bitset[$bytePos] === "\0") { |
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| 233 | // fast skip null byte |
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| 234 | 5 | continue; |
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| 235 | } |
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| 236 | |||
| 237 | 7 | $ord = \ord($bitset[$bytePos]); |
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| 238 | 7 | if ($ord & 0b00000001) ++$count; |
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| 239 | 7 | if ($ord & 0b00000010) ++$count; |
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| 240 | 7 | if ($ord & 0b00000100) ++$count; |
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| 241 | 7 | if ($ord & 0b00001000) ++$count; |
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| 242 | 7 | if ($ord & 0b00010000) ++$count; |
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| 243 | 7 | if ($ord & 0b00100000) ++$count; |
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| 244 | 7 | if ($ord & 0b01000000) ++$count; |
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| 245 | 7 | if ($ord & 0b10000000) ++$count; |
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| 246 | } |
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| 247 | 7 | return $count; |
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| 248 | } |
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| 249 | |||
| 250 | /** |
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| 251 | * Count the number of elements. |
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| 252 | * |
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| 253 | * This is the integer bitset implementation. |
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| 254 | * |
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| 255 | * @return int |
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| 256 | * @see count() |
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| 257 | * @see doCountBin() |
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| 258 | */ |
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| 259 | 8 | private function doCountInt(): int |
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| 260 | { |
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| 261 | 8 | $count = 0; |
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| 262 | 8 | $bitset = $this->bitset; |
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| 263 | |||
| 264 | // PHP does not support right shift unsigned |
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| 265 | 8 | if ($bitset < 0) { |
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| 266 | 2 | $count = 1; |
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| 267 | 2 | $bitset = $bitset & \PHP_INT_MAX; |
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| 268 | } |
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| 269 | |||
| 270 | // iterate byte by byte and count set bits |
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| 271 | 8 | $phpIntBitSize = \PHP_INT_SIZE * 8; |
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| 272 | 8 | for ($bitPos = 0; $bitPos < $phpIntBitSize; $bitPos += 8) { |
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| 273 | 8 | $bitChk = 0xff << $bitPos; |
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| 274 | 8 | $byte = $bitset & $bitChk; |
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| 275 | 8 | if ($byte) { |
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| 276 | 7 | $byte = $byte >> $bitPos; |
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| 277 | 7 | if ($byte & 0b00000001) ++$count; |
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| 278 | 7 | if ($byte & 0b00000010) ++$count; |
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| 279 | 7 | if ($byte & 0b00000100) ++$count; |
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| 280 | 7 | if ($byte & 0b00001000) ++$count; |
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| 281 | 7 | if ($byte & 0b00010000) ++$count; |
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| 282 | 7 | if ($byte & 0b00100000) ++$count; |
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| 283 | 7 | if ($byte & 0b01000000) ++$count; |
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| 284 | 7 | if ($byte & 0b10000000) ++$count; |
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| 285 | } |
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| 286 | |||
| 287 | 8 | if ($bitset <= $bitChk) { |
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| 288 | 7 | break; |
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| 289 | } |
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| 290 | } |
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| 291 | |||
| 292 | 8 | return $count; |
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| 293 | } |
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| 294 | |||
| 295 | /** |
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| 296 | * Check if this EnumSet is the same as other |
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| 297 | * @param EnumSet $other |
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| 298 | * @return bool |
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| 299 | */ |
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| 300 | 3 | public function isEqual(EnumSet $other): bool |
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| 301 | { |
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| 302 | 3 | return $this->enumeration === $other->enumeration |
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| 303 | 3 | && $this->bitset === $other->bitset; |
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| 304 | } |
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| 305 | |||
| 306 | /** |
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| 307 | * Check if this EnumSet is a subset of other |
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| 308 | * @param EnumSet $other |
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| 309 | * @return bool |
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| 310 | */ |
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| 311 | 4 | public function isSubset(EnumSet $other): bool |
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| 312 | { |
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| 313 | 4 | return $this->enumeration === $other->enumeration |
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| 314 | 4 | && ($this->bitset & $other->bitset) === $this->bitset; |
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| 315 | } |
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| 316 | |||
| 317 | /** |
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| 318 | * Check if this EnumSet is a superset of other |
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| 319 | * @param EnumSet $other |
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| 320 | * @return bool |
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| 321 | */ |
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| 322 | 4 | public function isSuperset(EnumSet $other): bool |
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| 323 | { |
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| 324 | 4 | return $this->enumeration === $other->enumeration |
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| 325 | 4 | && ($this->bitset | $other->bitset) === $this->bitset; |
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| 326 | } |
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| 327 | |||
| 328 | /** |
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| 329 | * Produce a new set with enumerators from both this and other (this | other) |
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| 330 | * |
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| 331 | * @param EnumSet $other EnumSet of the same enumeration to produce the union |
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| 332 | * @return EnumSet |
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| 333 | * @throws InvalidArgumentException If $other doesn't match the enumeration |
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| 334 | */ |
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| 335 | 2 | public function union(EnumSet $other): EnumSet |
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| 336 | { |
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| 337 | 2 | if ($this->enumeration !== $other->enumeration) { |
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| 338 | 1 | throw new InvalidArgumentException(\sprintf( |
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| 339 | 1 | 'Other should be of the same enumeration as this %s', |
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| 340 | 1 | $this->enumeration |
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| 341 | )); |
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| 342 | } |
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| 343 | |||
| 344 | 1 | $clone = clone $this; |
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| 345 | 1 | $clone->bitset = $this->bitset | $other->bitset; |
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| 346 | 1 | return $clone; |
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| 347 | } |
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| 348 | |||
| 349 | /** |
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| 350 | * Produce a new set with enumerators common to both this and other (this & other) |
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| 351 | * |
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| 352 | * @param EnumSet $other EnumSet of the same enumeration to produce the intersect |
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| 353 | * @return EnumSet |
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| 354 | * @throws InvalidArgumentException If $other doesn't match the enumeration |
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| 355 | */ |
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| 356 | 2 | public function intersect(EnumSet $other): EnumSet |
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| 357 | { |
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| 358 | 2 | if ($this->enumeration !== $other->enumeration) { |
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| 359 | 1 | throw new InvalidArgumentException(\sprintf( |
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| 360 | 1 | 'Other should be of the same enumeration as this %s', |
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| 361 | 1 | $this->enumeration |
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| 362 | )); |
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| 363 | } |
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| 364 | |||
| 365 | 1 | $clone = clone $this; |
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| 366 | 1 | $clone->bitset = $this->bitset & $other->bitset; |
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| 367 | 1 | return $clone; |
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| 368 | } |
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| 369 | |||
| 370 | /** |
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| 371 | * Produce a new set with enumerators in this but not in other (this - other) |
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| 372 | * |
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| 373 | * @param EnumSet $other EnumSet of the same enumeration to produce the diff |
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| 374 | * @return EnumSet |
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| 375 | * @throws InvalidArgumentException If $other doesn't match the enumeration |
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| 376 | */ |
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| 377 | 2 | public function diff(EnumSet $other): EnumSet |
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| 378 | { |
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| 379 | 2 | if ($this->enumeration !== $other->enumeration) { |
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| 380 | 1 | throw new InvalidArgumentException(\sprintf( |
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| 381 | 1 | 'Other should be of the same enumeration as this %s', |
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| 382 | 1 | $this->enumeration |
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| 383 | )); |
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| 384 | } |
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| 385 | |||
| 386 | 1 | $clone = clone $this; |
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| 387 | 1 | $clone->bitset = $this->bitset & ~$other->bitset; |
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| 388 | 1 | return $clone; |
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| 389 | } |
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| 390 | |||
| 391 | /** |
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| 392 | * Produce a new set with enumerators in either this and other but not in both (this ^ other) |
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| 393 | * |
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| 394 | * @param EnumSet $other EnumSet of the same enumeration to produce the symmetric difference |
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| 395 | * @return EnumSet |
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| 396 | * @throws InvalidArgumentException If $other doesn't match the enumeration |
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| 397 | */ |
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| 398 | 2 | public function symDiff(EnumSet $other): EnumSet |
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| 399 | { |
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| 400 | 2 | if ($this->enumeration !== $other->enumeration) { |
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| 401 | 1 | throw new InvalidArgumentException(\sprintf( |
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| 402 | 1 | 'Other should be of the same enumeration as this %s', |
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| 403 | 1 | $this->enumeration |
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| 404 | )); |
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| 405 | } |
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| 406 | |||
| 407 | 1 | $clone = clone $this; |
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| 408 | 1 | $clone->bitset = $this->bitset ^ $other->bitset; |
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| 409 | 1 | return $clone; |
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| 410 | } |
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| 411 | |||
| 412 | /** |
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| 413 | * Get ordinal numbers of the defined enumerators as array |
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| 414 | * @return int[] |
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| 415 | * @uses doGetOrdinalsBin() |
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| 416 | * @uses doGetOrdinalsInt() |
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| 417 | */ |
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| 418 | 9 | public function getOrdinals(): array |
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| 419 | { |
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| 420 | 9 | return $this->{$this->fnDoGetOrdinals}(); |
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| 421 | } |
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| 422 | |||
| 423 | /** |
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| 424 | * Get ordinal numbers of the defined enumerators as array. |
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| 425 | * |
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| 426 | * This is the binary bitset implementation. |
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| 427 | * |
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| 428 | * @return int[] |
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| 429 | * @see getOrdinals() |
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| 430 | * @see goGetOrdinalsInt() |
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| 431 | */ |
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| 432 | 1 | private function doGetOrdinalsBin(): array |
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| 433 | { |
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| 434 | 1 | $ordinals = []; |
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| 435 | 1 | $bitset = $this->bitset; |
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| 436 | 1 | $byteLen = \strlen($bitset); |
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| 437 | 1 | for ($bytePos = 0; $bytePos < $byteLen; ++$bytePos) { |
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| 438 | 1 | if ($bitset[$bytePos] === "\0") { |
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| 439 | // fast skip null byte |
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| 440 | 1 | continue; |
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| 441 | } |
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| 442 | |||
| 443 | 1 | $ord = \ord($bitset[$bytePos]); |
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| 444 | 1 | for ($bitPos = 0; $bitPos < 8; ++$bitPos) { |
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| 445 | 1 | if ($ord & (1 << $bitPos)) { |
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| 446 | 1 | $ordinals[] = $bytePos * 8 + $bitPos; |
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| 447 | } |
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| 448 | } |
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| 449 | } |
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| 450 | 1 | return $ordinals; |
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| 451 | } |
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| 452 | |||
| 453 | /** |
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| 454 | * Get ordinal numbers of the defined enumerators as array. |
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| 455 | * |
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| 456 | * This is the integer bitset implementation. |
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| 457 | * |
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| 458 | * @return int[] |
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| 459 | * @see getOrdinals() |
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| 460 | * @see doGetOrdinalsBin() |
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| 461 | */ |
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| 462 | 8 | private function doGetOrdinalsInt(): array |
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| 463 | { |
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| 464 | 8 | $ordinals = []; |
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| 465 | 8 | $count = $this->enumerationCount; |
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| 466 | 8 | $bitset = $this->bitset; |
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| 467 | 8 | for ($ordinal = 0; $ordinal < $count; ++$ordinal) { |
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| 468 | 8 | if ($bitset & (1 << $ordinal)) { |
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| 469 | 8 | $ordinals[] = $ordinal; |
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| 470 | } |
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| 471 | } |
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| 472 | 8 | return $ordinals; |
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| 473 | } |
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| 474 | |||
| 475 | /** |
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| 476 | * Get values of the defined enumerators as array |
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| 477 | * @return mixed[] |
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| 478 | */ |
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| 479 | 5 | public function getValues(): array |
|
| 480 | { |
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| 481 | 5 | $enumeration = $this->enumeration; |
|
| 482 | 5 | $values = []; |
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| 483 | 5 | foreach ($this->getOrdinals() as $ord) { |
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| 484 | 5 | $values[] = $enumeration::byOrdinal($ord)->getValue(); |
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| 485 | } |
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| 486 | 5 | return $values; |
|
| 487 | } |
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| 488 | |||
| 489 | /** |
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| 490 | * Get names of the defined enumerators as array |
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| 491 | * @return string[] |
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| 492 | */ |
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| 493 | 1 | public function getNames(): array |
|
| 494 | { |
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| 495 | 1 | $enumeration = $this->enumeration; |
|
| 496 | 1 | $names = []; |
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| 497 | 1 | foreach ($this->getOrdinals() as $ord) { |
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| 498 | 1 | $names[] = $enumeration::byOrdinal($ord)->getName(); |
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| 499 | } |
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| 500 | 1 | return $names; |
|
| 501 | } |
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| 502 | |||
| 503 | /** |
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| 504 | * Get the defined enumerators as array |
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| 505 | * @return Enum[] |
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| 506 | */ |
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| 507 | 1 | public function getEnumerators(): array |
|
| 508 | { |
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| 509 | 1 | $enumeration = $this->enumeration; |
|
| 510 | 1 | $enumerators = []; |
|
| 511 | 1 | foreach ($this->getOrdinals() as $ord) { |
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| 512 | 1 | $enumerators[] = $enumeration::byOrdinal($ord); |
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| 513 | } |
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| 514 | 1 | return $enumerators; |
|
| 515 | } |
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| 516 | |||
| 517 | /** |
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| 518 | * Get binary bitset in little-endian order |
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| 519 | * |
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| 520 | * @return string |
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| 521 | * @uses doGetBinaryBitsetLeBin() |
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| 522 | * @uses doGetBinaryBitsetLeInt() |
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| 523 | */ |
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| 524 | 6 | public function getBinaryBitsetLe(): string |
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| 525 | { |
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| 526 | 6 | return $this->{$this->fnDoGetBinaryBitsetLe}(); |
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| 527 | } |
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| 528 | |||
| 529 | /** |
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| 530 | * Get binary bitset in little-endian order. |
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| 531 | * |
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| 532 | * This is the binary bitset implementation. |
||
| 533 | * |
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| 534 | * @return string |
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| 535 | * @see getBinaryBitsetLe() |
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| 536 | * @see doGetBinaryBitsetLeInt() |
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| 537 | */ |
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| 538 | 4 | private function doGetBinaryBitsetLeBin(): string |
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| 539 | { |
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| 540 | 4 | return $this->bitset; |
|
| 541 | } |
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| 542 | |||
| 543 | /** |
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| 544 | * Get binary bitset in little-endian order. |
||
| 545 | * |
||
| 546 | * This is the integer bitset implementation. |
||
| 547 | * |
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| 548 | * @return string |
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| 549 | * @see getBinaryBitsetLe() |
||
| 550 | * @see doGetBinaryBitsetLeBin() |
||
| 551 | */ |
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| 552 | 2 | private function doGetBinaryBitsetLeInt(): string |
|
| 553 | { |
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| 554 | 2 | $bin = \pack(\PHP_INT_SIZE === 8 ? 'P' : 'V', $this->bitset); |
|
| 555 | 2 | return \substr($bin, 0, (int)\ceil($this->enumerationCount / 8)); |
|
| 556 | } |
||
| 557 | |||
| 558 | /** |
||
| 559 | * Set binary bitset in little-endian order |
||
| 560 | * |
||
| 561 | * @param string $bitset |
||
| 562 | * @return static |
||
| 563 | * @throws InvalidArgumentException On out-of-range bits given as input bitset |
||
| 564 | * @uses doSetBinaryBitsetLeBin() |
||
| 565 | * @uses doSetBinaryBitsetLeInt() |
||
| 566 | */ |
||
| 567 | 12 | public function withBinaryBitsetLe(string $bitset): self |
|
| 568 | { |
||
| 569 | 12 | $clone = clone $this; |
|
| 570 | 12 | $clone->{$this->fnDoSetBinaryBitsetLe}($bitset); |
|
| 571 | 6 | return $clone; |
|
| 572 | } |
||
| 573 | |||
| 574 | /** |
||
| 575 | * Set binary bitset in little-endian order |
||
| 576 | * |
||
| 577 | * @param string $bitset |
||
| 578 | * @return void |
||
| 579 | * @throws InvalidArgumentException On out-of-range bits given as input bitset |
||
| 580 | * @see setBinaryBitsetLeBin() |
||
| 581 | * @see doSetBinaryBitsetLeInt() |
||
| 582 | */ |
||
| 583 | 7 | private function doSetBinaryBitsetLeBin(string $bitset): void |
|
| 584 | { |
||
| 585 | 7 | $size = \strlen($this->bitset); |
|
| 586 | 7 | $sizeIn = \strlen($bitset); |
|
| 587 | |||
| 588 | 7 | if ($sizeIn < $size) { |
|
| 589 | // add "\0" if the given bitset is not long enough |
||
| 590 | 1 | $bitset .= \str_repeat("\0", $size - $sizeIn); |
|
| 591 | 6 | } elseif ($sizeIn > $size) { |
|
| 592 | 2 | if (\ltrim(\substr($bitset, $size), "\0") !== '') { |
|
| 593 | 1 | throw new InvalidArgumentException('out-of-range bits detected'); |
|
| 594 | } |
||
| 595 | 1 | $bitset = \substr($bitset, 0, $size); |
|
| 596 | } |
||
| 597 | |||
| 598 | // truncate out-of-range bits of last byte |
||
| 599 | 6 | $lastByteMaxOrd = $this->enumerationCount % 8; |
|
| 600 | 6 | if ($lastByteMaxOrd !== 0) { |
|
| 601 | 6 | $lastByte = $bitset[-1]; |
|
| 602 | 6 | $lastByteExpected = \chr((1 << $lastByteMaxOrd) - 1) & $lastByte; |
|
| 603 | 6 | if ($lastByte !== $lastByteExpected) { |
|
| 604 | 2 | throw new InvalidArgumentException('out-of-range bits detected'); |
|
| 605 | } |
||
| 606 | |||
| 607 | 4 | $this->bitset = \substr($bitset, 0, -1) . $lastByteExpected; |
|
| 608 | } |
||
| 609 | |||
| 610 | 4 | $this->bitset = $bitset; |
|
| 611 | 4 | } |
|
| 612 | |||
| 613 | /** |
||
| 614 | * Set binary bitset in little-endian order |
||
| 615 | * |
||
| 616 | * @param string $bitset |
||
| 617 | * @return void |
||
| 618 | * @throws InvalidArgumentException On out-of-range bits given as input bitset |
||
| 619 | * @see setBinaryBitsetLeBin() |
||
| 620 | * @see doSetBinaryBitsetLeBin() |
||
| 621 | */ |
||
| 622 | 5 | private function doSetBinaryBitsetLeInt(string $bitset): void |
|
| 641 | 2 | } |
|
| 642 | |||
| 643 | /** |
||
| 644 | * Get binary bitset in big-endian order |
||
| 645 | * |
||
| 646 | * @return string |
||
| 647 | */ |
||
| 648 | 1 | public function getBinaryBitsetBe(): string |
|
| 649 | { |
||
| 650 | 1 | return \strrev($this->bitset); |
|
| 651 | } |
||
| 652 | |||
| 653 | /** |
||
| 654 | * Set binary bitset in big-endian order |
||
| 655 | * |
||
| 656 | * @param string $bitset |
||
| 657 | * @return static |
||
| 658 | * @throws InvalidArgumentException On out-of-range bits given as input bitset |
||
| 659 | */ |
||
| 660 | 1 | public function withBinaryBitsetBe(string $bitset): self |
|
| 661 | { |
||
| 662 | 1 | return $this->withBinaryBitsetLe(\strrev($bitset)); |
|
| 663 | } |
||
| 664 | |||
| 665 | /** |
||
| 666 | * Get a bit at the given ordinal number |
||
| 667 | * |
||
| 668 | * @param int $ordinal Ordinal number of bit to get |
||
|
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|||
| 669 | * @return bool |
||
|
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|
|||
| 670 | * @throws InvalidArgumentException If the given ordinal number is out-of-range |
||
| 671 | * @uses doGetBitBin() |
||
| 672 | * @uses doGetBitInt() |
||
| 673 | */ |
||
| 674 | 3 | public function getBit(int $ordinal): bool |
|
| 675 | { |
||
| 676 | 3 | if ($ordinal < 0 || $ordinal > $this->enumerationCount) { |
|
| 677 | 1 | throw new InvalidArgumentException("Ordinal number must be between 0 and {$this->enumerationCount}"); |
|
|
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|
|||
| 678 | } |
||
| 679 | |||
| 680 | 2 | return $this->{$this->fnDoGetBit}($ordinal); |
|
| 681 | } |
||
| 682 | |||
| 683 | /** |
||
| 684 | * Get a bit at the given ordinal number. |
||
| 685 | * |
||
| 686 | * This is the binary bitset implementation. |
||
| 687 | * |
||
| 688 | * @param int $ordinal Ordinal number of bit to get |
||
|
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|
|||
| 689 | * @return bool |
||
|
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|
|||
| 690 | * @see getBit() |
||
| 691 | * @see doGetBitInt() |
||
| 692 | */ |
||
| 693 | 5 | private function doGetBitBin(int $ordinal): bool |
|
| 694 | { |
||
| 695 | 5 | return (\ord($this->bitset[(int) ($ordinal / 8)]) & 1 << ($ordinal % 8)) !== 0; |
|
| 696 | } |
||
| 697 | |||
| 698 | /** |
||
| 699 | * Get a bit at the given ordinal number. |
||
| 700 | * |
||
| 701 | * This is the integer bitset implementation. |
||
| 702 | * |
||
| 703 | * @param int $ordinal Ordinal number of bit to get |
||
|
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|
|||
| 704 | * @return bool |
||
|
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|
|||
| 705 | * @see getBit() |
||
| 706 | * @see doGetBitBin() |
||
| 707 | */ |
||
| 708 | 7 | private function doGetBitInt(int $ordinal): bool |
|
| 709 | { |
||
| 710 | 7 | return (bool)($this->bitset & (1 << $ordinal)); |
|
| 711 | } |
||
| 712 | |||
| 713 | /** |
||
| 714 | * Set a bit at the given ordinal number |
||
| 715 | * |
||
| 716 | * @param int $ordinal Ordinal number of bit to set |
||
|
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|
|||
| 717 | * @param bool $bit The bit to set |
||
|
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|
|||
| 718 | * @return static |
||
| 719 | * @throws InvalidArgumentException If the given ordinal number is out-of-range |
||
| 720 | * @uses doSetBitBin() |
||
| 721 | * @uses doSetBitInt() |
||
| 722 | * @uses doUnsetBitBin() |
||
| 723 | * @uses doUnsetBitInt() |
||
| 724 | */ |
||
| 725 | 2 | public function withBit(int $ordinal, bool $bit): self |
|
| 726 | { |
||
| 727 | 2 | if ($ordinal < 0 || $ordinal > $this->enumerationCount) { |
|
| 728 | 1 | throw new InvalidArgumentException("Ordinal number must be between 0 and {$this->enumerationCount}"); |
|
|
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|
|||
| 729 | } |
||
| 730 | |||
| 731 | 1 | $clone = clone $this; |
|
| 732 | 1 | if ($bit) { |
|
| 733 | 1 | $clone->{$this->fnDoSetBit}($ordinal); |
|
| 734 | } else { |
||
| 735 | 1 | $clone->{$this->fnDoUnsetBit}($ordinal); |
|
| 736 | } |
||
| 737 | 1 | return $clone; |
|
| 738 | } |
||
| 739 | |||
| 740 | /** |
||
| 741 | * Set a bit at the given ordinal number. |
||
| 742 | * |
||
| 743 | * This is the binary bitset implementation. |
||
| 744 | * |
||
| 745 | * @param int $ordinal Ordinal number of bit to set |
||
|
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|
|||
| 746 | * @return void |
||
| 747 | * @see setBit() |
||
| 748 | * @see doSetBitInt() |
||
| 749 | */ |
||
| 750 | 8 | private function doSetBitBin(int $ordinal): void |
|
| 751 | { |
||
| 752 | 8 | $byte = (int) ($ordinal / 8); |
|
| 753 | 8 | $this->bitset[$byte] = $this->bitset[$byte] | \chr(1 << ($ordinal % 8)); |
|
| 754 | 8 | } |
|
| 755 | |||
| 756 | /** |
||
| 757 | * Set a bit at the given ordinal number. |
||
| 758 | * |
||
| 759 | * This is the binary bitset implementation. |
||
| 760 | * |
||
| 761 | * @param int $ordinal Ordinal number of bit to set |
||
|
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|
|||
| 762 | * @return void |
||
| 763 | * @see setBit() |
||
| 764 | * @see doSetBitBin() |
||
| 765 | */ |
||
| 766 | 34 | private function doSetBitInt(int $ordinal): void |
|
| 767 | { |
||
| 768 | 34 | $this->bitset = $this->bitset | (1 << $ordinal); |
|
| 769 | 34 | } |
|
| 770 | |||
| 771 | /** |
||
| 772 | * Unset a bit at the given ordinal number. |
||
| 773 | * |
||
| 774 | * This is the binary bitset implementation. |
||
| 775 | * |
||
| 776 | * @param int $ordinal Ordinal number of bit to unset |
||
|
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|
|||
| 777 | * @return void |
||
| 778 | * @see setBit() |
||
| 779 | * @see doUnsetBitInt() |
||
| 780 | */ |
||
| 781 | 2 | private function doUnsetBitBin(int $ordinal): void |
|
| 782 | { |
||
| 783 | 2 | $byte = (int) ($ordinal / 8); |
|
| 784 | 2 | $this->bitset[$byte] = $this->bitset[$byte] & \chr(~(1 << ($ordinal % 8))); |
|
| 785 | 2 | } |
|
| 786 | |||
| 787 | /** |
||
| 788 | * Unset a bit at the given ordinal number. |
||
| 789 | * |
||
| 790 | * This is the integer bitset implementation. |
||
| 791 | * |
||
| 792 | * @param int $ordinal Ordinal number of bit to unset |
||
|
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|
|||
| 793 | * @return void |
||
| 794 | * @see setBit() |
||
| 795 | * @see doUnsetBitBin() |
||
| 796 | */ |
||
| 797 | 3 | private function doUnsetBitInt(int $ordinal): void |
|
| 800 | 3 | } |
|
| 801 | } |
||
| 802 |