PHP code example of sebastian / shaku

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

sebastian / shaku example snippets

namespace vendor;

final class Value
{
    // ...
}

 declare(strict_types=1);
namespace vendor;

final class ValueCollection implements \Countable, \IteratorAggregate
{
    /**
     * @var Value[]
     */
    private $items = [];

    public static function fromArray(array $items): self
    {
        $collection = new self;

        foreach ($items as $item) {
            $collection->add($item);
        }

        return $collection;
    }

    public static function fromList(Value ...$items): self
    {
        return self::fromArray($items);
    }

    private function __construct()
    {
    }

    private function add(Value $item): void
    {
        $this->items[] = $item;
    }

    /**
     * @return Value[]
     */
    public function toArray(): array
    {
        return $this->items;
    }

    public function getIterator(): ValueCollectionIterator
    {
        return new ValueCollectionIterator($this);
    }

    public function count(): int
    {
        return \count($this->items);
    }

    public function isEmpty(): bool
    {
        return empty($this->items);
    }

    public function contains(Value $item): bool
    {
        foreach ($this->items as $_item) {
            if ($_item === $item) {
                return true;
            }
        }

        return false;
    }
}

 declare(strict_types=1);
namespace vendor;

final class ValueCollectionIterator implements \Countable, \Iterator
{
    /**
     * @var Value[]
     */
    private $items;

    /**
     * @var int
     */
    private $position;

    public function __construct(ValueCollection $collection)
    {
        $this->items = $collection->toArray();
    }

    public function count(): int
    {
        return \iterator_count($this);
    }

    public function rewind(): void
    {
        $this->position = 0;
    }

    public function valid(): bool
    {
        return $this->position < \count($this->items);
    }

    public function key(): int
    {
        return $this->position;
    }

    public function current(): Value
    {
        return $this->items[$this->position];
    }

    public function next(): void
    {
        $this->position++;
    }
}

$values = ValueCollection::fromArray([new Value, new Value]);

$values = ValueCollection::fromList(new Value, new Value);

$values = new ValueCollection;

$values->add(new Value);
$values->add(new Value);