DList.php

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<?php

declare(strict_types=1);

namespace ILIAS\Data\Description;

use ILIAS\Data\Text;

class DList extends Description
{
    use ErrorHandling;

    public function __construct(
        Text\SimpleDocumentMarkdown $description,
        protected Description $value_type
    ) {
        parent::__construct($description);
    }

    public function getPrimitiveRepresentation(mixed $data): mixed
    {
        if (!is_array($data)) {
            return fn() => yield "Expected an array.";
        }

        $repr = [];
        $errors = [];

        foreach ($data as $v) {
            $value = $this->value_type->getPrimitiveRepresentation($v);

            if ($value instanceof \Closure) {
                $errors[] = $value;
            } else {
                $repr[] = $value;
            }
        }

        if ($errors) {
            return $this->mergeErrors($errors);
        }

        return $repr;
    }

    public function getValueType(): Description
    {
        return $this->value_type;
    }
}