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<?php |
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declare(strict_types=1); |
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/* |
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* Copyright (C) 2022 Sebastian Böttger <[email protected]> |
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* You may use, distribute and modify this code under the |
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* terms of the MIT license. |
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* |
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* You should have received a copy of the MIT license with |
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* this file. If not, please visit: https://opensource.org/licenses/mit-license.php |
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*/ |
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namespace Seboettg\Collection\Lists; |
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use Seboettg\Collection\Comparable\Comparable; |
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final class Functions |
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{ |
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final public static function emptyList(): ListInterface |
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{ |
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return new class() implements ListInterface { |
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private $array = []; |
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use ArrayListTrait; |
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}; |
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} |
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final public static function listOf(...$elements): ListInterface |
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{ |
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return listFromArray($elements); |
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} |
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final public static function listFromArray($elements): ListInterface |
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{ |
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$list = emptyList(); |
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$list->setArray(array_values($elements)); |
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return $list; |
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} |
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public static function isList($value): bool |
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{ |
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return $value instanceof ListInterface; |
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} |
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} |
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/** |
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* Returns an implmentation of `ListInterface` with no entries. |
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*/ |
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function emptyList(): ListInterface |
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{ |
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return Functions::emptyList(); |
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} |
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/** |
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* Returns an implementation of `ListInterface` containing passed elements |
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*/ |
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function listOf(...$elements): ListInterface |
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{ |
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return Functions::listOf(...$elements); |
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} |
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/** |
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* Returns an implementation of `ListInterface` containing all values of the passed array. The array keys are discarded. |
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*/ |
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function listFromArray(array $elements): ListInterface |
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{ |
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return Functions::listFromArray($elements); |
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} |
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/** |
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* Returns true when `$value` is an instance of `ListInterface`, otherwise false. |
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*/ |
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function isList($value): bool |
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{ |
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return Functions::isList($value); |
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} |
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seboettg /
Collection
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