<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\TypeInfo\Type;
use Symfony\Component\TypeInfo\Exception\InvalidArgumentException;
use Symfony\Component\TypeInfo\TypeIdentifier;
/**
* @author Mathias Arlaud <mathias.arlaud@gmail.com>
* @author Baptiste Leduc <baptiste.leduc@gmail.com>
*
* @template T of class-string<\BackedEnum>
* @template U of BuiltinType<TypeIdentifier::INT>|BuiltinType<TypeIdentifier::STRING>
*
* @extends EnumType<T>
*/
final class BackedEnumType extends EnumType
{
/**
* @param T $className
* @param U $backingType
*/
public function __construct(
string $className,
private readonly BuiltinType $backingType,
) {
if (TypeIdentifier::INT !== $backingType->getTypeIdentifier() && TypeIdentifier::STRING !== $backingType->getTypeIdentifier()) {
throw new InvalidArgumentException(\sprintf('Cannot create "%s" with "%s" backing type.', self::class, $backingType));
}
parent::__construct($className);
}
/**
* @return U
*/
public function getBackingType(): BuiltinType
{
return $this->backingType;
}
}