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<?php |
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// Copyright (c) Lellys Informática. All rights reserved. See License.txt in the project root for license information. |
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namespace Collections; |
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use Collections\Iterator\VectorIterator; |
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use Collections\Traits\VectorLikeTrait; |
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/** |
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* Vector is a stack-like collection. |
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* |
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* Like all objects in PHP, Vectors have reference-like semantics. When a |
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* caller passes a Vector to a callee, the callee can modify the Vector and the |
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* caller will see the changes. Vectors do not have "copy-on-write" semantics. |
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* |
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* Vectors only support integer keys. If a non-integer key is used, an |
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* exception will be thrown. |
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* |
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* Vectors suoport "$m[$k]" style syntax for getting and setting values by |
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* key. Vectors also support "isset($m[$k])" and "empty($m[$k])" syntax, and |
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* they provide similar semantics as arrays. Elements can be added to a Vector |
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* using "$m[] = .." syntax. |
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* |
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* Vectors do not support iterating while new elements are being added or |
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* elements are being removed. When a new element is added or removed, all |
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* iterators that point to the Vector shall be considered invalid. |
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* |
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* Vectors do not support taking elements by reference. If binding assignment |
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* (=&) is used with an element of a Vector, or if an element of a Vector is |
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* passed by reference, of if a Vector is used with foreach by reference, an |
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* exception will be thrown. |
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*/ |
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class Vector implements VectorInterface, \ArrayAccess |
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{ |
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use VectorLikeTrait, SortTrait; |
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/** |
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* {@inheritdoc} |
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*/ |
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public function __construct($array = null) |
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{ |
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$this->init($array); |
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} |
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public static function fromItems($items) |
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{ |
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return new self($items); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function indexOf($item) |
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{ |
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return array_search($item, $this->container, true); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function reverse() |
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{ |
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return static::fromArray(array_reverse($this->container)); |
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} |
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/** |
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* Gets the collection's iterator |
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* @return VectorIterator |
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*/ |
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public function getIterator() |
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{ |
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return new VectorIterator($this->container); |
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} |
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} |
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italolelis /
collections
