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<?php declare(strict_types=1);
/*
* This file is part of sebastian/code-unit.
*
* (c) Sebastian Bergmann <sebastian@phpunit.de>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace SebastianBergmann\CodeUnit;
use function array_merge;
use function count;
use Countable;
use IteratorAggregate;
final class CodeUnitCollection implements Countable, IteratorAggregate
{
/**
* @psalm-var list<CodeUnit>
*/
private $codeUnits = [];
/**
* @psalm-param list<CodeUnit> $items
*/
public static function fromArray(array $items): self
{
$collection = new self;
foreach ($items as $item) {
$collection->add($item);
}
return $collection;
}
public static function fromList(CodeUnit ...$items): self
{
return self::fromArray($items);
}
private function __construct()
{
}
/**
* @psalm-return list<CodeUnit>
*/
public function asArray(): array
{
return $this->codeUnits;
}
public function getIterator(): CodeUnitCollectionIterator
{
return new CodeUnitCollectionIterator($this);
}
public function count(): int
{
return count($this->codeUnits);
}
public function isEmpty(): bool
{
return empty($this->codeUnits);
}
public function mergeWith(self $other): self
{
return self::fromArray(
array_merge(
$this->asArray(),
$other->asArray()
)
);
}
private function add(CodeUnit $item): void
{
$this->codeUnits[] = $item;
}
}