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<?php |
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declare(strict_types=1); |
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namespace MabeEnum; |
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use Countable; |
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use InvalidArgumentException; |
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use Iterator; |
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use IteratorAggregate; |
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/** |
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* A set of enumerators of the given enumeration (EnumSet<T extends Enum>) |
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* based on an integer or binary bitset depending of given enumeration size. |
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* |
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* @copyright 2019 Marc Bennewitz |
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* @license http://github.com/marc-mabe/php-enum/blob/master/LICENSE.txt New BSD License |
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* @link http://github.com/marc-mabe/php-enum for the canonical source repository |
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*/ |
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class EnumSet implements IteratorAggregate, Countable |
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{ |
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/** |
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* The classname of the Enumeration |
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* @var string |
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*/ |
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private $enumeration; |
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/** |
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* Number of enumerators defined in the enumeration |
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* @var int |
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*/ |
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private $enumerationCount; |
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/** |
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* Integer or binary (little endian) bitset |
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* @var int|string |
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*/ |
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private $bitset = 0; |
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/** |
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* Integer or binary (little endian) empty bitset |
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* |
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* @var int|string |
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*/ |
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private $emptyBitset = 0; |
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/**#@+ |
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* Defines private method names to be called depended of how the bitset type was set too. |
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* ... Integer or binary bitset. |
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* ... *Int or *Bin method |
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* |
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* @var string |
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*/ |
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private $fnDoGetIterator = 'doGetIteratorInt'; |
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private $fnDoCount = 'doCountInt'; |
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private $fnDoGetOrdinals = 'doGetOrdinalsInt'; |
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private $fnDoGetBit = 'doGetBitInt'; |
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private $fnDoSetBit = 'doSetBitInt'; |
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private $fnDoUnsetBit = 'doUnsetBitInt'; |
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private $fnDoGetBinaryBitsetLe = 'doGetBinaryBitsetLeInt'; |
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private $fnDoSetBinaryBitsetLe = 'doSetBinaryBitsetLeInt'; |
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/**#@-*/ |
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/** |
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* Constructor |
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* |
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* @param string $enumeration The classname of the enumeration |
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* @param iterable|null $enumerators iterable list of enumerators initializing the set |
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* @throws InvalidArgumentException |
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*/ |
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public function __construct(string $enumeration, iterable $enumerators = null) |
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{ |
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if (!\is_subclass_of($enumeration, Enum::class)) { |
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throw new InvalidArgumentException(\sprintf( |
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'%s can handle subclasses of %s only', |
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__METHOD__, |
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Enum::class |
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)); |
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} |
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$this->enumeration = $enumeration; |
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$this->enumerationCount = \count($enumeration::getConstants()); |
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// By default the bitset is initialized as integer bitset |
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// in case the enumeration has more enumerators then integer bits |
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// we will switch this into a binary bitset |
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if ($this->enumerationCount > \PHP_INT_SIZE * 8) { |
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// init binary bitset with zeros |
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$this->bitset = $this->emptyBitset = \str_repeat("\0", (int)\ceil($this->enumerationCount / 8)); |
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// switch internal binary bitset functions |
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$this->fnDoGetIterator = 'doGetIteratorBin'; |
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$this->fnDoCount = 'doCountBin'; |
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$this->fnDoGetOrdinals = 'doGetOrdinalsBin'; |
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$this->fnDoGetBit = 'doGetBitBin'; |
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$this->fnDoSetBit = 'doSetBitBin'; |
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$this->fnDoUnsetBit = 'doUnsetBitBin'; |
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$this->fnDoGetBinaryBitsetLe = 'doGetBinaryBitsetLeBin'; |
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$this->fnDoSetBinaryBitsetLe = 'doSetBinaryBitsetLeBin'; |
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} |
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if ($enumerators !== null) { |
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foreach ($enumerators as $enumerator) { |
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$this->{$this->fnDoSetBit}($enumeration::get($enumerator)->getOrdinal()); |
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} |
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} |
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} |
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/** |
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* Add virtual private property "__enumerators" with a list of enumerator values set |
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* to the result of var_dump. |
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* |
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* This helps debugging as internally the enumerators of this EnumSet gets stored |
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* as either integer or binary bit-array. |
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* |
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* @return array<string, mixed> |
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*/ |
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public function __debugInfo() { |
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$dbg = (array)$this; |
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$dbg["\0" . self::class . "\0__enumerators"] = $this->getValues(); |
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return $dbg; |
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} |
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/** |
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* Get the classname of the enumeration |
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* @return string |
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*/ |
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public function getEnumeration(): string |
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{ |
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return $this->enumeration; |
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} |
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/* write access (mutable) */ |
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/** |
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* Adds an enumerator object or value |
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* @param Enum|null|bool|int|float|string|array $enumerator Enumerator object or value |
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* @return void |
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* @throws InvalidArgumentException On an invalid given enumerator |
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*/ |
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public function add($enumerator): void |
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{ |
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$this->{$this->fnDoSetBit}(($this->enumeration)::get($enumerator)->getOrdinal()); |
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} |
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/** |
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* Adds all enumerator objects or values of the given iterable |
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* @param iterable $enumerators Iterable list of enumerator objects or values |
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* @return void |
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* @throws InvalidArgumentException On an invalid given enumerator |
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*/ |
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public function addIterable(iterable $enumerators): void |
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{ |
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$bitset = $this->bitset; |
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try { |
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foreach ($enumerators as $enumerator) { |
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$this->{$this->fnDoSetBit}(($this->enumeration)::get($enumerator)->getOrdinal()); |
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} |
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} catch (\Throwable $e) { |
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// reset all changes until error happened |
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$this->bitset = $bitset; |
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throw $e; |
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} |
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} |
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/** |
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* Removes the given enumerator object or value |
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* @param Enum|null|bool|int|float|string|array $enumerator Enumerator object or value |
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* @return void |
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* @throws InvalidArgumentException On an invalid given enumerator |
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*/ |
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public function remove($enumerator): void |
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{ |
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$this->{$this->fnDoUnsetBit}(($this->enumeration)::get($enumerator)->getOrdinal()); |
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} |
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/** |
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* Adds an enumerator object or value |
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* @param Enum|null|bool|int|float|string|array $enumerator Enumerator object or value |
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* @return void |
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* @throws InvalidArgumentException On an invalid given enumerator |
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* @see add() |
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* @see with() |
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* @deprecated Will trigger deprecation warning in last 4.x and removed in 5.x |
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*/ |
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public function attach($enumerator): void |
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{ |
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$this->add($enumerator); |
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} |
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/** |
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* Removes the given enumerator object or value |
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* @param Enum|null|bool|int|float|string|array $enumerator Enumerator object or value |
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* @return void |
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* @throws InvalidArgumentException On an invalid given enumerator |
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* @see remove() |
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* @see without() |
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* @deprecated Will trigger deprecation warning in last 4.x and removed in 5.x |
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*/ |
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public function detach($enumerator): void |
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{ |
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$this->remove($enumerator); |
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} |
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/** |
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* Removes all enumerator objects or values of the given iterable |
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* @param iterable $enumerators Iterable list of enumerator objects or values |
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* @return void |
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* @throws InvalidArgumentException On an invalid given enumerator |
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*/ |
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public function removeIterable(iterable $enumerators): void |
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{ |
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$bitset = $this->bitset; |
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try { |
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foreach ($enumerators as $enumerator) { |
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$this->{$this->fnDoUnsetBit}(($this->enumeration)::get($enumerator)->getOrdinal()); |
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} |
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} catch (\Throwable $e) { |
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// reset all changes until error happened |
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$this->bitset = $bitset; |
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throw $e; |
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} |
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} |
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/** |
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* Modify this set from both this and other (this | other) |
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* |
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* @param EnumSet $other EnumSet of the same enumeration to produce the union |
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* @return void |
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* @throws InvalidArgumentException If $other doesn't match the enumeration |
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*/ |
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public function setUnion(EnumSet $other): void |
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{ |
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if ($this->enumeration !== $other->enumeration) { |
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throw new InvalidArgumentException(\sprintf( |
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'Other should be of the same enumeration as this %s', |
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$this->enumeration |
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)); |
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} |
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$this->bitset = $this->bitset | $other->bitset; |
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} |
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/** |
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* Modify this set with enumerators common to both this and other (this & other) |
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* |
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* @param EnumSet $other EnumSet of the same enumeration to produce the intersect |
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* @return void |
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* @throws InvalidArgumentException If $other doesn't match the enumeration |
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*/ |
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public function setIntersect(EnumSet $other): void |
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{ |
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if ($this->enumeration !== $other->enumeration) { |
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throw new InvalidArgumentException(\sprintf( |
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'Other should be of the same enumeration as this %s', |
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$this->enumeration |
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)); |
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} |
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262
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$this->bitset = $this->bitset & $other->bitset; |
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} |
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265
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/** |
266
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* Modify this set with enumerators in this but not in other (this - other) |
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* |
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* @param EnumSet $other EnumSet of the same enumeration to produce the diff |
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* @return void |
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* @throws InvalidArgumentException If $other doesn't match the enumeration |
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*/ |
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public function setDiff(EnumSet $other): void |
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{ |
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if ($this->enumeration !== $other->enumeration) { |
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1 |
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throw new InvalidArgumentException(\sprintf( |
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1 |
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'Other should be of the same enumeration as this %s', |
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1 |
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$this->enumeration |
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)); |
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} |
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$this->bitset = $this->bitset & ~$other->bitset; |
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3 |
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} |
283
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284
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/** |
285
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* Modify this set with enumerators in either this and other but not in both (this ^ other) |
286
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* |
287
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* @param EnumSet $other EnumSet of the same enumeration to produce the symmetric difference |
288
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* @return void |
289
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* @throws InvalidArgumentException If $other doesn't match the enumeration |
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290
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*/ |
291
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4 |
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public function setSymDiff(EnumSet $other): void |
292
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{ |
293
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4 |
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if ($this->enumeration !== $other->enumeration) { |
294
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1 |
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throw new InvalidArgumentException(\sprintf( |
295
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1 |
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'Other should be of the same enumeration as this %s', |
296
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1 |
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$this->enumeration |
297
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)); |
298
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} |
299
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300
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3 |
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$this->bitset = $this->bitset ^ $other->bitset; |
301
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3 |
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} |
302
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303
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/** |
304
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* Set the given binary bitset in little-endian order |
305
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* |
306
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* @param string $bitset |
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307
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* @return void |
308
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* @throws InvalidArgumentException On out-of-range bits given as input bitset |
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309
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* @uses doSetBinaryBitsetLeBin() |
310
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* @uses doSetBinaryBitsetLeInt() |
311
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*/ |
312
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1 |
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public function setBinaryBitsetLe(string $bitset): void |
313
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{ |
314
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1 |
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$this->{$this->fnDoSetBinaryBitsetLe}($bitset); |
315
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1 |
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} |
316
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317
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/** |
318
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* Set binary bitset in little-endian order |
319
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* |
320
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* @param string $bitset |
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321
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* @return void |
322
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* @throws InvalidArgumentException On out-of-range bits given as input bitset |
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323
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* @see setBinaryBitsetLeBin() |
324
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* @see doSetBinaryBitsetLeInt() |
325
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*/ |
326
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9 |
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private function doSetBinaryBitsetLeBin($bitset): void |
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327
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{ |
328
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9 |
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$size = \strlen($this->bitset); |
329
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9 |
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$sizeIn = \strlen($bitset); |
330
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331
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9 |
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if ($sizeIn < $size) { |
332
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// add "\0" if the given bitset is not long enough |
333
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1 |
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$bitset .= \str_repeat("\0", $size - $sizeIn); |
334
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8 |
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} elseif ($sizeIn > $size) { |
335
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2 |
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if (\ltrim(\substr($bitset, $size), "\0") !== '') { |
336
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1 |
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throw new InvalidArgumentException('out-of-range bits detected'); |
337
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} |
338
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1 |
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$bitset = \substr($bitset, 0, $size); |
339
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} |
340
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341
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// truncate out-of-range bits of last byte |
342
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8 |
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$lastByteMaxOrd = $this->enumerationCount % 8; |
343
|
8 |
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if ($lastByteMaxOrd !== 0) { |
344
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8 |
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$lastByte = $bitset[-1]; |
345
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8 |
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$lastByteExpected = \chr((1 << $lastByteMaxOrd) - 1) & $lastByte; |
346
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8 |
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if ($lastByte !== $lastByteExpected) { |
347
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2 |
|
throw new InvalidArgumentException('out-of-range bits detected'); |
348
|
|
|
} |
349
|
|
|
|
350
|
6 |
|
$this->bitset = \substr($bitset, 0, -1) . $lastByteExpected; |
351
|
|
|
} |
352
|
|
|
|
353
|
6 |
|
$this->bitset = $bitset; |
354
|
6 |
|
} |
355
|
|
|
|
356
|
|
|
/** |
357
|
|
|
* Set binary bitset in little-endian order |
358
|
|
|
* |
359
|
|
|
* @param string $bitset |
|
|
|
|
360
|
|
|
* @return void |
361
|
|
|
* @throws InvalidArgumentException On out-of-range bits given as input bitset |
|
|
|
|
362
|
|
|
* @see setBinaryBitsetLeBin() |
363
|
|
|
* @see doSetBinaryBitsetLeBin() |
364
|
|
|
*/ |
365
|
5 |
|
private function doSetBinaryBitsetLeInt($bitset): void |
|
|
|
|
366
|
|
|
{ |
367
|
5 |
|
$len = \strlen($bitset); |
368
|
5 |
|
$int = 0; |
369
|
5 |
|
for ($i = 0; $i < $len; ++$i) { |
370
|
5 |
|
$ord = \ord($bitset[$i]); |
371
|
|
|
|
372
|
5 |
|
if ($ord && $i > \PHP_INT_SIZE - 1) { |
373
|
1 |
|
throw new InvalidArgumentException('out-of-range bits detected'); |
374
|
|
|
} |
375
|
|
|
|
376
|
5 |
|
$int |= $ord << (8 * $i); |
377
|
|
|
} |
378
|
|
|
|
379
|
4 |
|
if ($int & (~0 << $this->enumerationCount)) { |
380
|
2 |
|
throw new InvalidArgumentException('out-of-range bits detected'); |
381
|
|
|
} |
382
|
|
|
|
383
|
2 |
|
$this->bitset = $int; |
384
|
2 |
|
} |
385
|
|
|
|
386
|
|
|
/** |
387
|
|
|
* Set the given binary bitset in big-endian order |
388
|
|
|
* |
389
|
|
|
* @param string $bitset |
|
|
|
|
390
|
|
|
* @return void |
391
|
|
|
* @throws InvalidArgumentException On out-of-range bits given as input bitset |
|
|
|
|
392
|
|
|
*/ |
393
|
1 |
|
public function setBinaryBitsetBe(string $bitset): void |
394
|
|
|
{ |
395
|
1 |
|
$this->{$this->fnDoSetBinaryBitsetLe}(\strrev($bitset)); |
396
|
1 |
|
} |
397
|
|
|
|
398
|
|
|
/** |
399
|
|
|
* Set a bit at the given ordinal number |
400
|
|
|
* |
401
|
|
|
* @param int $ordinal Ordinal number of bit to set |
|
|
|
|
402
|
|
|
* @param bool $bit The bit to set |
|
|
|
|
403
|
|
|
* @return void |
404
|
|
|
* @throws InvalidArgumentException If the given ordinal number is out-of-range |
|
|
|
|
405
|
|
|
* @uses doSetBitBin() |
406
|
|
|
* @uses doSetBitInt() |
407
|
|
|
* @uses doUnsetBitBin() |
408
|
|
|
* @uses doUnsetBitInt() |
409
|
|
|
*/ |
410
|
3 |
|
public function setBit(int $ordinal, bool $bit): void |
411
|
|
|
{ |
412
|
3 |
|
if ($ordinal < 0 || $ordinal > $this->enumerationCount) { |
413
|
1 |
|
throw new InvalidArgumentException("Ordinal number must be between 0 and {$this->enumerationCount}"); |
|
|
|
|
414
|
|
|
} |
415
|
|
|
|
416
|
2 |
|
if ($bit) { |
417
|
2 |
|
$this->{$this->fnDoSetBit}($ordinal); |
418
|
|
|
} else { |
419
|
2 |
|
$this->{$this->fnDoUnsetBit}($ordinal); |
420
|
|
|
} |
421
|
2 |
|
} |
422
|
|
|
|
423
|
|
|
/** |
424
|
|
|
* Set a bit at the given ordinal number. |
425
|
|
|
* |
426
|
|
|
* This is the binary bitset implementation. |
427
|
|
|
* |
428
|
|
|
* @param int $ordinal Ordinal number of bit to set |
429
|
|
|
* @return void |
430
|
|
|
* @see setBit() |
431
|
|
|
* @see doSetBitInt() |
432
|
|
|
*/ |
433
|
16 |
|
private function doSetBitBin($ordinal): void |
|
|
|
|
434
|
|
|
{ |
435
|
16 |
|
$byte = (int) ($ordinal / 8); |
436
|
16 |
|
$this->bitset[$byte] = $this->bitset[$byte] | \chr(1 << ($ordinal % 8)); |
437
|
16 |
|
} |
438
|
|
|
|
439
|
|
|
/** |
440
|
|
|
* Set a bit at the given ordinal number. |
441
|
|
|
* |
442
|
|
|
* This is the binary bitset implementation. |
443
|
|
|
* |
444
|
|
|
* @param int $ordinal Ordinal number of bit to set |
445
|
|
|
* @return void |
446
|
|
|
* @see setBit() |
447
|
|
|
* @see doSetBitBin() |
448
|
|
|
*/ |
449
|
65 |
|
private function doSetBitInt($ordinal): void |
|
|
|
|
450
|
|
|
{ |
451
|
65 |
|
$this->bitset = $this->bitset | (1 << $ordinal); |
452
|
65 |
|
} |
453
|
|
|
|
454
|
|
|
/** |
455
|
|
|
* Unset a bit at the given ordinal number. |
456
|
|
|
* |
457
|
|
|
* This is the binary bitset implementation. |
458
|
|
|
* |
459
|
|
|
* @param int $ordinal Ordinal number of bit to unset |
460
|
|
|
* @return void |
461
|
|
|
* @see setBit() |
462
|
|
|
* @see doUnsetBitInt() |
463
|
|
|
*/ |
464
|
12 |
|
private function doUnsetBitBin($ordinal): void |
|
|
|
|
465
|
|
|
{ |
466
|
12 |
|
$byte = (int) ($ordinal / 8); |
467
|
12 |
|
$this->bitset[$byte] = $this->bitset[$byte] & \chr(~(1 << ($ordinal % 8))); |
468
|
12 |
|
} |
469
|
|
|
|
470
|
|
|
/** |
471
|
|
|
* Unset a bit at the given ordinal number. |
472
|
|
|
* |
473
|
|
|
* This is the integer bitset implementation. |
474
|
|
|
* |
475
|
|
|
* @param int $ordinal Ordinal number of bit to unset |
476
|
|
|
* @return void |
477
|
|
|
* @see setBit() |
478
|
|
|
* @see doUnsetBitBin() |
479
|
|
|
*/ |
480
|
24 |
|
private function doUnsetBitInt($ordinal): void |
|
|
|
|
481
|
|
|
{ |
482
|
24 |
|
$this->bitset = $this->bitset & ~(1 << $ordinal); |
483
|
24 |
|
} |
484
|
|
|
|
485
|
|
|
/* write access (immutable) */ |
486
|
|
|
|
487
|
|
|
/** |
488
|
|
|
* Creates a new set with the given enumerator object or value added |
489
|
|
|
* @param Enum|null|bool|int|float|string|array $enumerator Enumerator object or value |
490
|
|
|
* @return static |
491
|
|
|
* @throws InvalidArgumentException On an invalid given enumerator |
|
|
|
|
492
|
|
|
*/ |
493
|
27 |
|
public function with($enumerator): self |
494
|
|
|
{ |
495
|
27 |
|
$clone = clone $this; |
496
|
27 |
|
$clone->{$this->fnDoSetBit}(($this->enumeration)::get($enumerator)->getOrdinal()); |
497
|
27 |
|
return $clone; |
498
|
|
|
} |
499
|
|
|
|
500
|
|
|
/** |
501
|
|
|
* Creates a new set with the given enumeration objects or values added |
502
|
|
|
* @param iterable $enumerators Iterable list of enumerator objects or values |
503
|
|
|
* @return static |
504
|
|
|
* @throws InvalidArgumentException On an invalid given enumerator |
|
|
|
|
505
|
|
|
*/ |
506
|
5 |
|
public function withIterable(iterable $enumerators): self |
507
|
|
|
{ |
508
|
5 |
|
$clone = clone $this; |
509
|
5 |
|
foreach ($enumerators as $enumerator) { |
510
|
5 |
|
$clone->{$this->fnDoSetBit}(($this->enumeration)::get($enumerator)->getOrdinal()); |
511
|
|
|
} |
512
|
5 |
|
return $clone; |
513
|
|
|
} |
514
|
|
|
|
515
|
|
|
/** |
516
|
|
|
* Create a new set with the given enumerator object or value removed |
517
|
|
|
* @param Enum|null|bool|int|float|string|array $enumerator Enumerator object or value |
518
|
|
|
* @return static |
519
|
|
|
* @throws InvalidArgumentException On an invalid given enumerator |
|
|
|
|
520
|
|
|
*/ |
521
|
8 |
|
public function without($enumerator): self |
522
|
|
|
{ |
523
|
8 |
|
$clone = clone $this; |
524
|
8 |
|
$clone->{$this->fnDoUnsetBit}(($this->enumeration)::get($enumerator)->getOrdinal()); |
525
|
8 |
|
return $clone; |
526
|
|
|
} |
527
|
|
|
|
528
|
|
|
/** |
529
|
|
|
* Creates a new set with the given enumeration objects or values removed |
530
|
|
|
* @param iterable $enumerators Iterable list of enumerator objects or values |
531
|
|
|
* @return static |
532
|
|
|
* @throws InvalidArgumentException On an invalid given enumerator |
|
|
|
|
533
|
|
|
*/ |
534
|
5 |
|
public function withoutIterable(iterable $enumerators): self |
535
|
|
|
{ |
536
|
5 |
|
$clone = clone $this; |
537
|
5 |
|
foreach ($enumerators as $enumerator) { |
538
|
5 |
|
$clone->{$this->fnDoUnsetBit}(($this->enumeration)::get($enumerator)->getOrdinal()); |
539
|
|
|
} |
540
|
5 |
|
return $clone; |
541
|
|
|
} |
542
|
|
|
|
543
|
|
|
/** |
544
|
|
|
* Create a new set with enumerators from both this and other (this | other) |
545
|
|
|
* |
546
|
|
|
* @param EnumSet $other EnumSet of the same enumeration to produce the union |
547
|
|
|
* @return static |
548
|
|
|
* @throws InvalidArgumentException If $other doesn't match the enumeration |
|
|
|
|
549
|
|
|
*/ |
550
|
2 |
|
public function withUnion(EnumSet $other): self |
551
|
|
|
{ |
552
|
2 |
|
$clone = clone $this; |
553
|
2 |
|
$clone->setUnion($other); |
554
|
2 |
|
return $clone; |
555
|
|
|
} |
556
|
|
|
|
557
|
|
|
/** |
558
|
|
|
* Create a new set with enumerators from both this and other (this | other) |
559
|
|
|
* |
560
|
|
|
* @param EnumSet $other EnumSet of the same enumeration to produce the union |
561
|
|
|
* @return static |
562
|
|
|
* @throws InvalidArgumentException If $other doesn't match the enumeration |
|
|
|
|
563
|
|
|
* @see withUnion() |
564
|
|
|
* @see setUnion() |
565
|
|
|
* @deprecated Will trigger deprecation warning in last 4.x and removed in 5.x |
566
|
|
|
*/ |
567
|
1 |
|
public function union(EnumSet $other): self |
568
|
|
|
{ |
569
|
1 |
|
return $this->withUnion($other); |
570
|
|
|
} |
571
|
|
|
|
572
|
|
|
/** |
573
|
|
|
* Create a new set with enumerators common to both this and other (this & other) |
574
|
|
|
* |
575
|
|
|
* @param EnumSet $other EnumSet of the same enumeration to produce the intersect |
576
|
|
|
* @return static |
577
|
|
|
* @throws InvalidArgumentException If $other doesn't match the enumeration |
|
|
|
|
578
|
|
|
*/ |
579
|
2 |
|
public function withIntersect(EnumSet $other): self |
580
|
|
|
{ |
581
|
2 |
|
$clone = clone $this; |
582
|
2 |
|
$clone->setIntersect($other); |
583
|
2 |
|
return $clone; |
584
|
|
|
} |
585
|
|
|
|
586
|
|
|
/** |
587
|
|
|
* Create a new set with enumerators common to both this and other (this & other) |
588
|
|
|
* |
589
|
|
|
* @param EnumSet $other EnumSet of the same enumeration to produce the intersect |
590
|
|
|
* @return static |
591
|
|
|
* @throws InvalidArgumentException If $other doesn't match the enumeration |
|
|
|
|
592
|
|
|
* @see withIntersect() |
593
|
|
|
* @see setIntersect() |
594
|
|
|
* @deprecated Will trigger deprecation warning in last 4.x and removed in 5.x |
595
|
|
|
*/ |
596
|
1 |
|
public function intersect(EnumSet $other): self |
597
|
|
|
{ |
598
|
1 |
|
return $this->withIntersect($other); |
599
|
|
|
} |
600
|
|
|
|
601
|
|
|
/** |
602
|
|
|
* Create a new set with enumerators in this but not in other (this - other) |
603
|
|
|
* |
604
|
|
|
* @param EnumSet $other EnumSet of the same enumeration to produce the diff |
605
|
|
|
* @return static |
606
|
|
|
* @throws InvalidArgumentException If $other doesn't match the enumeration |
|
|
|
|
607
|
|
|
*/ |
608
|
2 |
|
public function withDiff(EnumSet $other): self |
609
|
|
|
{ |
610
|
2 |
|
$clone = clone $this; |
611
|
2 |
|
$clone->setDiff($other); |
612
|
2 |
|
return $clone; |
613
|
|
|
} |
614
|
|
|
|
615
|
|
|
/** |
616
|
|
|
* Create a new set with enumerators in this but not in other (this - other) |
617
|
|
|
* |
618
|
|
|
* @param EnumSet $other EnumSet of the same enumeration to produce the diff |
619
|
|
|
* @return static |
620
|
|
|
* @throws InvalidArgumentException If $other doesn't match the enumeration |
|
|
|
|
621
|
|
|
* @see withDiff() |
622
|
|
|
* @see setDiff() |
623
|
|
|
* @deprecated Will trigger deprecation warning in last 4.x and removed in 5.x |
624
|
|
|
*/ |
625
|
1 |
|
public function diff(EnumSet $other): self |
626
|
|
|
{ |
627
|
1 |
|
return $this->withDiff($other); |
628
|
|
|
} |
629
|
|
|
|
630
|
|
|
/** |
631
|
|
|
* Create a new set with enumerators in either this and other but not in both (this ^ other) |
632
|
|
|
* |
633
|
|
|
* @param EnumSet $other EnumSet of the same enumeration to produce the symmetric difference |
634
|
|
|
* @return static |
635
|
|
|
* @throws InvalidArgumentException If $other doesn't match the enumeration |
|
|
|
|
636
|
|
|
*/ |
637
|
2 |
|
public function withSymDiff(EnumSet $other): self |
638
|
|
|
{ |
639
|
2 |
|
$clone = clone $this; |
640
|
2 |
|
$clone->setSymDiff($other); |
641
|
2 |
|
return $clone; |
642
|
|
|
} |
643
|
|
|
|
644
|
|
|
/** |
645
|
|
|
* Create a new set with enumerators in either this and other but not in both (this ^ other) |
646
|
|
|
* |
647
|
|
|
* @param EnumSet $other EnumSet of the same enumeration to produce the symmetric difference |
648
|
|
|
* @return static |
649
|
|
|
* @throws InvalidArgumentException If $other doesn't match the enumeration |
|
|
|
|
650
|
|
|
* @see withSymDiff() |
651
|
|
|
* @see setSymDiff() |
652
|
|
|
* @deprecated Will trigger deprecation warning in last 4.x and removed in 5.x |
653
|
|
|
*/ |
654
|
1 |
|
public function symDiff(EnumSet $other): self |
655
|
|
|
{ |
656
|
1 |
|
return $this->withSymDiff($other); |
657
|
|
|
} |
658
|
|
|
|
659
|
|
|
/** |
660
|
|
|
* Create a new set with the given binary bitset in little-endian order |
661
|
|
|
* |
662
|
|
|
* @param string $bitset |
|
|
|
|
663
|
|
|
* @return static |
664
|
|
|
* @throws InvalidArgumentException On out-of-range bits given as input bitset |
|
|
|
|
665
|
|
|
* @uses doSetBinaryBitsetLeBin() |
666
|
|
|
* @uses doSetBinaryBitsetLeInt() |
667
|
|
|
*/ |
668
|
11 |
|
public function withBinaryBitsetLe(string $bitset): self |
669
|
|
|
{ |
670
|
11 |
|
$clone = clone $this; |
671
|
11 |
|
$clone->{$this->fnDoSetBinaryBitsetLe}($bitset); |
672
|
5 |
|
return $clone; |
673
|
|
|
} |
674
|
|
|
|
675
|
|
|
/** |
676
|
|
|
* Create a new set with the given binary bitset in big-endian order |
677
|
|
|
* |
678
|
|
|
* @param string $bitset |
|
|
|
|
679
|
|
|
* @return static |
680
|
|
|
* @throws InvalidArgumentException On out-of-range bits given as input bitset |
|
|
|
|
681
|
|
|
*/ |
682
|
1 |
|
public function withBinaryBitsetBe(string $bitset): self |
683
|
|
|
{ |
684
|
1 |
|
$clone = $this; |
685
|
1 |
|
$clone->{$this->fnDoSetBinaryBitsetLe}(\strrev($bitset)); |
686
|
1 |
|
return $clone; |
687
|
|
|
} |
688
|
|
|
|
689
|
|
|
/** |
690
|
|
|
* Create a new set with the bit at the given ordinal number set |
691
|
|
|
* |
692
|
|
|
* @param int $ordinal Ordinal number of bit to set |
|
|
|
|
693
|
|
|
* @param bool $bit The bit to set |
|
|
|
|
694
|
|
|
* @return static |
695
|
|
|
* @throws InvalidArgumentException If the given ordinal number is out-of-range |
|
|
|
|
696
|
|
|
* @uses doSetBitBin() |
697
|
|
|
* @uses doSetBitInt() |
698
|
|
|
* @uses doUnsetBitBin() |
699
|
|
|
* @uses doUnsetBitInt() |
700
|
|
|
*/ |
701
|
1 |
|
public function withBit(int $ordinal, bool $bit): self |
702
|
|
|
{ |
703
|
1 |
|
$clone = clone $this; |
704
|
1 |
|
$clone->setBit($ordinal, $bit); |
705
|
1 |
|
return $clone; |
706
|
|
|
} |
707
|
|
|
|
708
|
|
|
/* read access */ |
709
|
|
|
|
710
|
|
|
/** |
711
|
|
|
* Test if the given enumerator exists |
712
|
|
|
* @param Enum|null|bool|int|float|string|array $enumerator |
|
|
|
|
713
|
|
|
* @return bool |
714
|
|
|
*/ |
715
|
25 |
|
public function has($enumerator): bool |
716
|
|
|
{ |
717
|
25 |
|
return $this->{$this->fnDoGetBit}(($this->enumeration)::get($enumerator)->getOrdinal()); |
718
|
|
|
} |
719
|
|
|
|
720
|
|
|
/** |
721
|
|
|
* Test if the given enumerator exists |
722
|
|
|
* @param Enum|null|bool|int|float|string|array $enumerator |
|
|
|
|
723
|
|
|
* @return bool |
724
|
|
|
* @see has() |
725
|
|
|
* @deprecated Will trigger deprecation warning in last 4.x and removed in 5.x |
726
|
|
|
*/ |
727
|
1 |
|
public function contains($enumerator): bool |
728
|
|
|
{ |
729
|
1 |
|
return $this->has($enumerator); |
730
|
|
|
} |
731
|
|
|
|
732
|
|
|
/* IteratorAggregate */ |
733
|
|
|
|
734
|
|
|
/** |
735
|
|
|
* Get a new iterator |
736
|
|
|
* @return Iterator |
737
|
|
|
* @uses doGetIteratorInt() |
738
|
|
|
* @uses doGetIteratorBin() |
739
|
|
|
*/ |
740
|
13 |
|
public function getIterator(): Iterator |
741
|
|
|
{ |
742
|
13 |
|
return $this->{$this->fnDoGetIterator}(); |
743
|
|
|
} |
744
|
|
|
|
745
|
|
|
/** |
746
|
|
|
* Get a new Iterator. |
747
|
|
|
* |
748
|
|
|
* This is the binary bitset implementation. |
749
|
|
|
* |
750
|
|
|
* @return Iterator |
751
|
|
|
* @see getIterator() |
752
|
|
|
* @see goGetIteratorInt() |
753
|
|
|
*/ |
754
|
4 |
|
private function doGetIteratorBin() |
755
|
|
|
{ |
756
|
4 |
|
$bitset = $this->bitset; |
757
|
4 |
|
$byteLen = \strlen($bitset); |
758
|
4 |
|
for ($bytePos = 0; $bytePos < $byteLen; ++$bytePos) { |
759
|
4 |
|
if ($bitset[$bytePos] === "\0") { |
760
|
|
|
// fast skip null byte |
761
|
4 |
|
continue; |
762
|
|
|
} |
763
|
|
|
|
764
|
4 |
|
$ord = \ord($bitset[$bytePos]); |
765
|
4 |
|
for ($bitPos = 0; $bitPos < 8; ++$bitPos) { |
766
|
4 |
|
if ($ord & (1 << $bitPos)) { |
767
|
4 |
|
$ordinal = $bytePos * 8 + $bitPos; |
768
|
4 |
|
yield $ordinal => ($this->enumeration)::byOrdinal($ordinal); |
769
|
|
|
} |
770
|
|
|
} |
771
|
|
|
} |
772
|
4 |
|
} |
773
|
|
|
|
774
|
|
|
/** |
775
|
|
|
* Get a new Iterator. |
776
|
|
|
* |
777
|
|
|
* This is the integer bitset implementation. |
778
|
|
|
* |
779
|
|
|
* @return Iterator |
780
|
|
|
* @see getIterator() |
781
|
|
|
* @see doGetIteratorBin() |
782
|
|
|
*/ |
783
|
9 |
|
private function doGetIteratorInt() |
784
|
|
|
{ |
785
|
9 |
|
$count = $this->enumerationCount; |
786
|
9 |
|
$bitset = $this->bitset; |
787
|
9 |
|
for ($ordinal = 0; $ordinal < $count; ++$ordinal) { |
788
|
9 |
|
if ($bitset & (1 << $ordinal)) { |
789
|
7 |
|
yield $ordinal => ($this->enumeration)::byOrdinal($ordinal); |
790
|
|
|
} |
791
|
|
|
} |
792
|
7 |
|
} |
793
|
|
|
|
794
|
|
|
/* Countable */ |
795
|
|
|
|
796
|
|
|
/** |
797
|
|
|
* Count the number of elements |
798
|
|
|
* |
799
|
|
|
* @return int |
800
|
|
|
* @uses doCountBin() |
801
|
|
|
* @uses doCountInt() |
802
|
|
|
*/ |
803
|
33 |
|
public function count(): int |
804
|
|
|
{ |
805
|
33 |
|
return $this->{$this->fnDoCount}(); |
806
|
|
|
} |
807
|
|
|
|
808
|
|
|
/** |
809
|
|
|
* Count the number of elements. |
810
|
|
|
* |
811
|
|
|
* This is the binary bitset implementation. |
812
|
|
|
* |
813
|
|
|
* @return int |
814
|
|
|
* @see count() |
815
|
|
|
* @see doCountInt() |
816
|
|
|
*/ |
817
|
15 |
|
private function doCountBin() |
818
|
|
|
{ |
819
|
15 |
|
$count = 0; |
820
|
15 |
|
$bitset = $this->bitset; |
821
|
15 |
|
$byteLen = \strlen($bitset); |
822
|
15 |
|
for ($bytePos = 0; $bytePos < $byteLen; ++$bytePos) { |
823
|
15 |
|
if ($bitset[$bytePos] === "\0") { |
824
|
|
|
// fast skip null byte |
825
|
15 |
|
continue; |
826
|
|
|
} |
827
|
|
|
|
828
|
15 |
|
$ord = \ord($bitset[$bytePos]); |
829
|
15 |
|
if ($ord & 0b00000001) ++$count; |
830
|
15 |
|
if ($ord & 0b00000010) ++$count; |
|
|
|
|
831
|
15 |
|
if ($ord & 0b00000100) ++$count; |
|
|
|
|
832
|
15 |
|
if ($ord & 0b00001000) ++$count; |
|
|
|
|
833
|
15 |
|
if ($ord & 0b00010000) ++$count; |
834
|
15 |
|
if ($ord & 0b00100000) ++$count; |
835
|
15 |
|
if ($ord & 0b01000000) ++$count; |
836
|
15 |
|
if ($ord & 0b10000000) ++$count; |
837
|
|
|
} |
838
|
15 |
|
return $count; |
839
|
|
|
} |
840
|
|
|
|
841
|
|
|
/** |
842
|
|
|
* Count the number of elements. |
843
|
|
|
* |
844
|
|
|
* This is the integer bitset implementation. |
845
|
|
|
* |
846
|
|
|
* @return int |
847
|
|
|
* @see count() |
848
|
|
|
* @see doCountBin() |
849
|
|
|
*/ |
850
|
18 |
|
private function doCountInt() |
851
|
|
|
{ |
852
|
18 |
|
$count = 0; |
853
|
18 |
|
$bitset = $this->bitset; |
854
|
|
|
|
855
|
|
|
// PHP does not support right shift unsigned |
856
|
18 |
|
if ($bitset < 0) { |
857
|
5 |
|
$count = 1; |
858
|
5 |
|
$bitset = $bitset & \PHP_INT_MAX; |
859
|
|
|
} |
860
|
|
|
|
861
|
|
|
// iterate byte by byte and count set bits |
862
|
18 |
|
$phpIntBitSize = \PHP_INT_SIZE * 8; |
863
|
18 |
|
for ($bitPos = 0; $bitPos < $phpIntBitSize; $bitPos += 8) { |
864
|
18 |
|
$bitChk = 0xff << $bitPos; |
865
|
18 |
|
$byte = $bitset & $bitChk; |
866
|
18 |
|
if ($byte) { |
867
|
17 |
|
$byte = $byte >> $bitPos; |
868
|
17 |
|
if ($byte & 0b00000001) ++$count; |
869
|
17 |
|
if ($byte & 0b00000010) ++$count; |
870
|
17 |
|
if ($byte & 0b00000100) ++$count; |
871
|
17 |
|
if ($byte & 0b00001000) ++$count; |
872
|
17 |
|
if ($byte & 0b00010000) ++$count; |
873
|
17 |
|
if ($byte & 0b00100000) ++$count; |
874
|
17 |
|
if ($byte & 0b01000000) ++$count; |
875
|
17 |
|
if ($byte & 0b10000000) ++$count; |
876
|
|
|
} |
877
|
|
|
|
878
|
18 |
|
if ($bitset <= $bitChk) { |
879
|
18 |
|
break; |
880
|
|
|
} |
881
|
|
|
} |
882
|
|
|
|
883
|
18 |
|
return $count; |
884
|
|
|
} |
885
|
|
|
|
886
|
|
|
/** |
887
|
|
|
* Check if this EnumSet is the same as other |
888
|
|
|
* @param EnumSet $other |
|
|
|
|
889
|
|
|
* @return bool |
890
|
|
|
*/ |
891
|
3 |
|
public function isEqual(EnumSet $other): bool |
892
|
|
|
{ |
893
|
3 |
|
return $this->enumeration === $other->enumeration |
894
|
3 |
|
&& $this->bitset === $other->bitset; |
895
|
|
|
} |
896
|
|
|
|
897
|
|
|
/** |
898
|
|
|
* Check if this EnumSet is a subset of other |
899
|
|
|
* @param EnumSet $other |
|
|
|
|
900
|
|
|
* @return bool |
901
|
|
|
*/ |
902
|
4 |
|
public function isSubset(EnumSet $other): bool |
903
|
|
|
{ |
904
|
4 |
|
return $this->enumeration === $other->enumeration |
905
|
4 |
|
&& ($this->bitset & $other->bitset) === $this->bitset; |
906
|
|
|
} |
907
|
|
|
|
908
|
|
|
/** |
909
|
|
|
* Check if this EnumSet is a superset of other |
910
|
|
|
* @param EnumSet $other |
|
|
|
|
911
|
|
|
* @return bool |
912
|
|
|
*/ |
913
|
4 |
|
public function isSuperset(EnumSet $other): bool |
914
|
|
|
{ |
915
|
4 |
|
return $this->enumeration === $other->enumeration |
916
|
4 |
|
&& ($this->bitset | $other->bitset) === $this->bitset; |
917
|
|
|
} |
918
|
|
|
|
919
|
|
|
/** |
920
|
|
|
* Tests if the set is empty |
921
|
|
|
* |
922
|
|
|
* @return bool |
923
|
|
|
*/ |
924
|
5 |
|
public function isEmpty(): bool |
925
|
|
|
{ |
926
|
5 |
|
return $this->bitset === $this->emptyBitset; |
927
|
|
|
} |
928
|
|
|
|
929
|
|
|
/** |
930
|
|
|
* Get ordinal numbers of the defined enumerators as array |
931
|
|
|
* @return int[] |
932
|
|
|
* @uses doGetOrdinalsBin() |
933
|
|
|
* @uses doGetOrdinalsInt() |
934
|
|
|
*/ |
935
|
19 |
|
public function getOrdinals(): array |
936
|
|
|
{ |
937
|
19 |
|
return $this->{$this->fnDoGetOrdinals}(); |
938
|
|
|
} |
939
|
|
|
|
940
|
|
|
/** |
941
|
|
|
* Get ordinal numbers of the defined enumerators as array. |
942
|
|
|
* |
943
|
|
|
* This is the binary bitset implementation. |
944
|
|
|
* |
945
|
|
|
* @return int[] |
946
|
|
|
* @see getOrdinals() |
947
|
|
|
* @see goGetOrdinalsInt() |
948
|
|
|
*/ |
949
|
1 |
|
private function doGetOrdinalsBin() |
950
|
|
|
{ |
951
|
1 |
|
$ordinals = []; |
952
|
1 |
|
$bitset = $this->bitset; |
953
|
1 |
|
$byteLen = \strlen($bitset); |
954
|
1 |
|
for ($bytePos = 0; $bytePos < $byteLen; ++$bytePos) { |
955
|
1 |
|
if ($bitset[$bytePos] === "\0") { |
956
|
|
|
// fast skip null byte |
957
|
1 |
|
continue; |
958
|
|
|
} |
959
|
|
|
|
960
|
1 |
|
$ord = \ord($bitset[$bytePos]); |
961
|
1 |
|
for ($bitPos = 0; $bitPos < 8; ++$bitPos) { |
962
|
1 |
|
if ($ord & (1 << $bitPos)) { |
963
|
1 |
|
$ordinals[] = $bytePos * 8 + $bitPos; |
964
|
|
|
} |
965
|
|
|
} |
966
|
|
|
} |
967
|
1 |
|
return $ordinals; |
968
|
|
|
} |
969
|
|
|
|
970
|
|
|
/** |
971
|
|
|
* Get ordinal numbers of the defined enumerators as array. |
972
|
|
|
* |
973
|
|
|
* This is the integer bitset implementation. |
974
|
|
|
* |
975
|
|
|
* @return int[] |
976
|
|
|
* @see getOrdinals() |
977
|
|
|
* @see doGetOrdinalsBin() |
978
|
|
|
*/ |
979
|
18 |
|
private function doGetOrdinalsInt() |
980
|
|
|
{ |
981
|
18 |
|
$ordinals = []; |
982
|
18 |
|
$count = $this->enumerationCount; |
983
|
18 |
|
$bitset = $this->bitset; |
984
|
18 |
|
for ($ordinal = 0; $ordinal < $count; ++$ordinal) { |
985
|
18 |
|
if ($bitset & (1 << $ordinal)) { |
986
|
18 |
|
$ordinals[] = $ordinal; |
987
|
|
|
} |
988
|
|
|
} |
989
|
18 |
|
return $ordinals; |
990
|
|
|
} |
991
|
|
|
|
992
|
|
|
/** |
993
|
|
|
* Get values of the defined enumerators as array |
994
|
|
|
* @return mixed[] |
995
|
|
|
*/ |
996
|
14 |
|
public function getValues(): array |
997
|
|
|
{ |
998
|
14 |
|
$enumeration = $this->enumeration; |
999
|
14 |
|
$values = []; |
1000
|
14 |
|
foreach ($this->getOrdinals() as $ord) { |
1001
|
14 |
|
$values[] = $enumeration::byOrdinal($ord)->getValue(); |
1002
|
|
|
} |
1003
|
14 |
|
return $values; |
1004
|
|
|
} |
1005
|
|
|
|
1006
|
|
|
/** |
1007
|
|
|
* Get names of the defined enumerators as array |
1008
|
|
|
* @return string[] |
1009
|
|
|
*/ |
1010
|
1 |
|
public function getNames(): array |
1011
|
|
|
{ |
1012
|
1 |
|
$enumeration = $this->enumeration; |
1013
|
1 |
|
$names = []; |
1014
|
1 |
|
foreach ($this->getOrdinals() as $ord) { |
1015
|
1 |
|
$names[] = $enumeration::byOrdinal($ord)->getName(); |
1016
|
|
|
} |
1017
|
1 |
|
return $names; |
1018
|
|
|
} |
1019
|
|
|
|
1020
|
|
|
/** |
1021
|
|
|
* Get the defined enumerators as array |
1022
|
|
|
* @return Enum[] |
1023
|
|
|
*/ |
1024
|
2 |
|
public function getEnumerators(): array |
1025
|
|
|
{ |
1026
|
2 |
|
$enumeration = $this->enumeration; |
1027
|
2 |
|
$enumerators = []; |
1028
|
2 |
|
foreach ($this->getOrdinals() as $ord) { |
1029
|
2 |
|
$enumerators[] = $enumeration::byOrdinal($ord); |
1030
|
|
|
} |
1031
|
2 |
|
return $enumerators; |
1032
|
|
|
} |
1033
|
|
|
|
1034
|
|
|
/** |
1035
|
|
|
* Get binary bitset in little-endian order |
1036
|
|
|
* |
1037
|
|
|
* @return string |
1038
|
|
|
* @uses doGetBinaryBitsetLeBin() |
1039
|
|
|
* @uses doGetBinaryBitsetLeInt() |
1040
|
|
|
*/ |
1041
|
8 |
|
public function getBinaryBitsetLe(): string |
1042
|
|
|
{ |
1043
|
8 |
|
return $this->{$this->fnDoGetBinaryBitsetLe}(); |
1044
|
|
|
} |
1045
|
|
|
|
1046
|
|
|
/** |
1047
|
|
|
* Get binary bitset in little-endian order. |
1048
|
|
|
* |
1049
|
|
|
* This is the binary bitset implementation. |
1050
|
|
|
* |
1051
|
|
|
* @return string |
1052
|
|
|
* @see getBinaryBitsetLe() |
1053
|
|
|
* @see doGetBinaryBitsetLeInt() |
1054
|
|
|
*/ |
1055
|
5 |
|
private function doGetBinaryBitsetLeBin() |
1056
|
|
|
{ |
1057
|
5 |
|
return $this->bitset; |
1058
|
|
|
} |
1059
|
|
|
|
1060
|
|
|
/** |
1061
|
|
|
* Get binary bitset in little-endian order. |
1062
|
|
|
* |
1063
|
|
|
* This is the integer bitset implementation. |
1064
|
|
|
* |
1065
|
|
|
* @return string |
1066
|
|
|
* @see getBinaryBitsetLe() |
1067
|
|
|
* @see doGetBinaryBitsetLeBin() |
1068
|
|
|
*/ |
1069
|
3 |
|
private function doGetBinaryBitsetLeInt() |
1070
|
|
|
{ |
1071
|
3 |
|
$bin = \pack(\PHP_INT_SIZE === 8 ? 'P' : 'V', $this->bitset); |
1072
|
3 |
|
return \substr($bin, 0, (int)\ceil($this->enumerationCount / 8)); |
1073
|
|
|
} |
1074
|
|
|
|
1075
|
|
|
/** |
1076
|
|
|
* Get binary bitset in big-endian order |
1077
|
|
|
* |
1078
|
|
|
* @return string |
1079
|
|
|
*/ |
1080
|
2 |
|
public function getBinaryBitsetBe(): string |
1081
|
|
|
{ |
1082
|
2 |
|
return \strrev($this->getBinaryBitsetLe()); |
1083
|
|
|
} |
1084
|
|
|
|
1085
|
|
|
/** |
1086
|
|
|
* Get a bit at the given ordinal number |
1087
|
|
|
* |
1088
|
|
|
* @param int $ordinal Ordinal number of bit to get |
1089
|
|
|
* @return bool |
1090
|
|
|
* @throws InvalidArgumentException If the given ordinal number is out-of-range |
|
|
|
|
1091
|
|
|
* @uses doGetBitBin() |
1092
|
|
|
* @uses doGetBitInt() |
1093
|
|
|
*/ |
1094
|
4 |
|
public function getBit(int $ordinal): bool |
1095
|
|
|
{ |
1096
|
4 |
|
if ($ordinal < 0 || $ordinal > $this->enumerationCount) { |
1097
|
1 |
|
throw new InvalidArgumentException("Ordinal number must be between 0 and {$this->enumerationCount}"); |
|
|
|
|
1098
|
|
|
} |
1099
|
|
|
|
1100
|
3 |
|
return $this->{$this->fnDoGetBit}($ordinal); |
1101
|
|
|
} |
1102
|
|
|
|
1103
|
|
|
/** |
1104
|
|
|
* Get a bit at the given ordinal number. |
1105
|
|
|
* |
1106
|
|
|
* This is the binary bitset implementation. |
1107
|
|
|
* |
1108
|
|
|
* @param int $ordinal Ordinal number of bit to get |
1109
|
|
|
* @return bool |
1110
|
|
|
* @see getBit() |
1111
|
|
|
* @see doGetBitInt() |
1112
|
|
|
*/ |
1113
|
8 |
|
private function doGetBitBin($ordinal) |
|
|
|
|
1114
|
|
|
{ |
1115
|
8 |
|
return (\ord($this->bitset[(int) ($ordinal / 8)]) & 1 << ($ordinal % 8)) !== 0; |
1116
|
|
|
} |
1117
|
|
|
|
1118
|
|
|
/** |
1119
|
|
|
* Get a bit at the given ordinal number. |
1120
|
|
|
* |
1121
|
|
|
* This is the integer bitset implementation. |
1122
|
|
|
* |
1123
|
|
|
* @param int $ordinal Ordinal number of bit to get |
1124
|
|
|
* @return bool |
1125
|
|
|
* @see getBit() |
1126
|
|
|
* @see doGetBitBin() |
1127
|
|
|
*/ |
1128
|
19 |
|
private function doGetBitInt($ordinal) |
|
|
|
|
1129
|
|
|
{ |
1130
|
19 |
|
return (bool)($this->bitset & (1 << $ordinal)); |
1131
|
|
|
} |
1132
|
|
|
} |
1133
|
|
|
|