Name.php

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<?php
 
declare(strict_types=1);
 
namespace ILIAS\Component\Dependencies;
 
class Name
{
    private const PROPER_NAME_REGEXP = "/\w+([\\\\]\w+){2,}/";
 
    public function __construct(
        protected string $name
    ) {
        if (!preg_match(self::PROPER_NAME_REGEXP, $this->name)) {
            throw new \InvalidArgumentException(
                "{$this->name} is not a proper name for a dependency."
            );
        }
    }
 
    public function __toString(): string
    {
        return $this->name;
    }
}