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<?php |
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namespace Wandu\Math\Foundation\Set; |
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use InvalidArgumentException; |
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use Wandu\Math\Foundation\SetInterface; |
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use ArrayIterator; |
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class HashSet implements SetInterface |
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{ |
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/** @var array */ |
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protected $scalars = []; |
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/** @var array */ |
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protected $objects = []; |
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/** |
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* @param array $items |
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*/ |
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public function __construct(array $items) |
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{ |
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foreach ($items as $item) { |
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$this->add($item); |
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} |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function count() |
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{ |
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return count($this->scalars) + count($this->objects); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function equal(SetInterface $other) |
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{ |
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if (!$other instanceof HashSet) { |
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throw new InvalidArgumentException('unsupported type of Set.'); |
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} |
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if (count($other->scalars) !== count($this->scalars)) { |
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return false; |
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} |
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if (count($other->objects) !== count($this->objects)) { |
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return false; |
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} |
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foreach ($this->scalars as $key => $item) { |
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if (!array_key_exists($key, $other->scalars)) { |
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return false; |
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} |
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} |
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foreach ($other->scalars as $key => $item) { |
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if (!array_key_exists($key, $this->scalars)) { |
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return false; |
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} |
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} |
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foreach ($this->objects as $key => $item) { |
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if (!array_key_exists($key, $other->objects)) { |
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return false; |
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} |
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} |
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foreach ($other->objects as $key => $item) { |
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if (!array_key_exists($key, $this->objects)) { |
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return false; |
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} |
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} |
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return true; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function intersection(SetInterface $other) |
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{ |
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if (!$other instanceof HashSet) { |
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throw new InvalidArgumentException('unsupported type of Set.'); |
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} |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function union(SetInterface $other) |
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{ |
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if (!$other instanceof HashSet) { |
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throw new InvalidArgumentException('unsupported type of Set.'); |
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} |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function difference(SetInterface $other) |
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{ |
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if (!$other instanceof HashSet) { |
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throw new InvalidArgumentException('unsupported type of Set.'); |
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} |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function has($item) |
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{ |
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if (is_scalar($item)) { |
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return array_key_exists(gettype($item) . $item, $this->scalars); |
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} |
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if (is_object($item)) { |
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return array_key_exists(spl_object_hash($item), $this->objects); |
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} |
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return false; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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4 |
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public function add($item) |
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{ |
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4 |
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if (is_scalar($item)) { |
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return $this->scalars[gettype($item) . $item] = $item; |
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} |
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if (is_object($item)) { |
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return $this->objects[spl_object_hash($item)] = $item; |
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} |
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throw new InvalidArgumentException( |
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'unsupported value: ' . str_replace("\n", '', var_export($item, true)) |
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); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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1 |
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public function remove($item) |
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{ |
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1 |
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if (is_scalar($item)) { |
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unset($this->scalars[gettype($item) . $item]); |
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} |
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1 |
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if (is_object($item)) { |
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unset($this->objects[spl_object_hash($item)]); |
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} |
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1 |
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} |
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144
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/** |
|
145
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* {@inheritdoc} |
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146
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*/ |
|
147
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1 |
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public function getIterator() |
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{ |
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1 |
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return new ArrayIterator(array_merge( |
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1 |
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array_values($this->scalars), |
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1 |
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array_values($this->objects) |
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1 |
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)); |
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} |
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} |
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Wandu /
Framework
