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<?php namespace Mbh\Collection\Traits; |
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use Mbh\Collection\Interfaces\Collection as CollectionInterface; |
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use Mbh\Collection\Interfaces\Sequenceable as SequenceableInterface; |
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use Mbh\Collection\FixedArray; |
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use Mbh\Collection\CallbackHeap; |
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use Mbh\Iterator\SliceIterator; |
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use Mbh\Iterator\ConcatIterator; |
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use SplFixedArray; |
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use SplHeap; |
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use SplStack; |
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use LimitIterator; |
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use Iterator; |
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use ArrayAccess; |
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use Countable; |
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use CallbackFilterIterator; |
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use JsonSerializable; |
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use RuntimeException; |
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use Traversable; |
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use ReflectionClass; |
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use UnderflowException; |
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use OutOfRangeException; |
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/** |
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* MBHFramework |
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* |
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* @link https://github.com/MBHFramework/mbh-framework |
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* @copyright Copyright (c) 2017 Ulises Jeremias Cornejo Fandos |
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* @license https://github.com/MBHFramework/mbh-framework/blob/master/LICENSE (MIT License) |
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*/ |
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trait Sequenceable |
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{ |
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protected $sfa = null; |
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/** |
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* Create an fixed array |
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* |
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* @param Traversable $array data |
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*/ |
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protected function __construct(Traversable $array) |
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{ |
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$this->sfa = $array; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public static function fromArray(array $array) |
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{ |
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return new static(SplFixedArray::fromArray($array)); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public static function fromItems(Traversable $array) |
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{ |
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// We can only do it this way if we can count it |
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if ($array instanceof Countable) { |
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$sfa = new SplFixedArray(count($array)); |
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foreach ($array as $i => $elem) { |
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$sfa[$i] = $elem; |
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} |
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return new static($sfa); |
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} |
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// If we can't count it, it's simplest to iterate into an array first |
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return static::fromArray(iterator_to_array($array)); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function contains(...$values): bool |
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{ |
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foreach ($values as $value) { |
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if (!$this->find($value)) { |
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return false; |
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} |
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} |
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return true; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function copy() |
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{ |
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return static::fromArray($this->toArray()); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function first() |
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{ |
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if ($this->isEmpty()) { |
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throw new UnderflowException(); |
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} |
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return $this[0]; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function get(int $index) |
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{ |
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if (! $this->validIndex($index)) { |
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throw new OutOfRangeException(); |
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} |
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return $this[$index]; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function insert(int $index, ...$values) |
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{ |
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if (!$this->validIndex($index) && $index !== $this->count()) { |
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throw new OutOfRangeException(); |
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} |
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$slice = $this->slice($index, $this->count()); |
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var_dump($slice); |
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$this->setSize($this->count() + count($values)); |
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foreach ($values as &$item) { |
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$this[$index++] = $item; |
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} |
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foreach ($slice->toArray() as &$item) { |
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$this[$index++] = $item; |
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} |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function last() |
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{ |
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if ($this->isEmpty()) { |
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throw new UnderflowException(); |
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} |
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return $this[$this->count() - 1]; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function pop() |
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{ |
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if ($this->isEmpty()) { |
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throw new UnderflowException(); |
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} |
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$value = $this->last(); |
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unset($this[$this->count() - 1]); |
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$this->checkCapacity(); |
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return $value; |
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} |
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/** |
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* Pushes all values of either an array or traversable object. |
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*/ |
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private function pushAll($values) |
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{ |
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$size = $this->getSize(); |
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foreach ($values as $value) { |
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$this->setSize(++$size); |
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$this[$size - 1] = $value; |
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} |
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$this->checkCapacity(); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function push(...$values) |
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{ |
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$this->pushAll($values); |
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} |
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public function toArray(): array |
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{ |
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return $this->sfa->toArray(); |
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} |
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protected function validIndex(int $index) |
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{ |
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return $index >= 0 && $index < $this->getSize(); |
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} |
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/** |
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* Countable |
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*/ |
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public function count(): int |
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{ |
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return count($this->sfa); |
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} |
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/** |
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* Iterator |
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*/ |
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public function current() |
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{ |
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return $this->sfa->current(); |
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} |
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public function key(): int |
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{ |
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return $this->sfa->key(); |
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} |
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public function next() |
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{ |
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return $this->sfa->next(); |
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} |
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public function rewind() |
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{ |
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return $this->sfa->rewind(); |
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} |
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public function valid() |
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{ |
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return $this->sfa->valid(); |
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} |
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/** |
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* ArrayAccess |
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*/ |
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public function offsetExists($offset): bool |
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{ |
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return is_integer($offset) |
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&& $this->validIndex($offset) |
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&& $this->sfa->offsetExists($offset); |
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} |
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public function offsetGet($offset) |
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{ |
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return $this->sfa->offsetGet($offset); |
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} |
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public function offsetSet($offset, $value) |
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{ |
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if ($offset === null) { |
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$this->push($value); |
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} elseif (is_integer($offset) && $this->validIndex($offset)) { |
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$this->sfa->offsetSet($offset, $value); |
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} |
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} |
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public function offsetUnset($offset) |
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{ |
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return is_integer($offset) |
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&& $this->validIndex($offset) |
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&& $this->sfa->offsetUnset($offset); |
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} |
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public function clear() |
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{ |
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return $this->sfa->clear(); |
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} |
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protected function getMainTraversable(): Traversable |
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{ |
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return $this->sfa; |
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} |
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protected function setTraversable(Traversable $traversable) |
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{ |
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$this->sfa = $traversable; |
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} |
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/** |
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* Gets the size of the array. |
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* |
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* @return int |
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*/ |
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protected function getSize(): int |
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{ |
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return $this->sfa->getSize(); |
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} |
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/** |
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* Change the size of an array to the new size of size. |
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* If size is less than the current array size, any values after the |
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* new size will be discarded. If size is greater than the current |
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* array size, the array will be padded with NULL values. |
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* |
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* @param int $size The new array size. This should be a value between 0 |
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* and PHP_INT_MAX. |
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* @return bool Returns TRUE on success or FALSE on failure. |
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*/ |
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protected function setSize(int $size): bool |
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{ |
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return $this->sfa->setSize($size); |
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} |
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abstract protected function checkCapacity(); |
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abstract public function isEmpty(): bool; |
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abstract public function find(callable $callback); |
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} |
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