canHaveParentTrait.php

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<?php

declare(strict_types=1);

namespace ILIAS\GlobalScreen\Scope\Footer\Factory;

use ILIAS\GlobalScreen\Identification\IdentificationInterface;

trait canHaveParentTrait
{
    protected ?IdentificationInterface $parent = null;

    public function hasParent(): bool
    {
        return $this->parent !== null;
    }

    public function getParentIdentification(): ?IdentificationInterface
    {
        return $this->parent;
    }

    public function withParent(IdentificationInterface $identification): self
    {
        if ($this->parent !== null && $this->parent === $identification) {
            return $this;
        }

        $clone = clone $this;
        $clone->parent = $identification;
        return $clone;
    }
}