smuuf/primi

<?php

declare(strict_types=1);

namespace Smuuf\Primi\Stdlib\TypeExtensions;

use \Smuuf\Primi\Extensions\PrimiFunc;
use \Smuuf\Primi\Ex\TypeError;
use \Smuuf\Primi\Values\TypeValue;
use \Smuuf\Primi\Values\NullValue;
use \Smuuf\Primi\Helpers\Interned;
use \Smuuf\Primi\Extensions\TypeExtension;
use \Smuuf\Primi\Stdlib\BuiltinTypes;

class NullTypeExtension extends TypeExtension {

    #[PrimiFunc]
    public static function __new__(TypeValue $type): NullValue {

        if ($type !== BuiltinTypes::getNullType()) {
            throw new TypeError("Passed invalid type object");
        }

        return Interned::null();

    }

}