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<?php namespace Mbh\Collection\Traits\Sequenceable\Arrayed; |
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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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use Traversable; |
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use OutOfRangeException; |
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trait ArrayAccess |
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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 = $array; |
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$this->checkCapacity(); |
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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($offset)) { |
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$this->set($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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&& $this->remove($offset); |
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} |
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abstract protected function checkCapacity(); |
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/** |
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* Adds zero or more values to the end of the sequence. |
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* |
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* @param mixed ...$values |
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*/ |
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abstract public function push(...$values); |
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/** |
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* Removes and returns the value at a given index in the sequence. |
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* |
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* @param int $index this index to remove. |
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* |
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* @return mixed the removed value. |
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* |
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* @throws OutOfRangeException if the index is not in the range [0, size-1] |
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*/ |
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abstract public function remove(int $index); |
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/** |
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* Replaces the value at a given index in the sequence with a new value. |
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* |
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* @param int $index |
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* @param mixed $value |
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* |
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* @throws OutOfRangeException if the index is not in the range [0, size-1] |
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*/ |
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abstract public function set(int $index, $value); |
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abstract protected function validIndex(int $index); |
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} |
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MBHFramework /
structures
