rector/packages/StaticTypeMapper/PhpDocParser/UnionTypeMapper.php

<?php

declare (strict_types=1);
namespace Rector\StaticTypeMapper\PhpDocParser;

use PhpParser\Node;
use PHPStan\Analyser\NameScope;
use PHPStan\PhpDocParser\Ast\Type\TypeNode;
use PHPStan\PhpDocParser\Ast\Type\UnionTypeNode;
use PHPStan\Type\Type;
use Rector\NodeTypeResolver\PHPStan\Type\TypeFactory;
use Rector\StaticTypeMapper\Contract\PhpDocParser\PhpDocTypeMapperInterface;
use Rector\StaticTypeMapper\PhpDoc\PhpDocTypeMapper;
use RectorPrefix202303\Symfony\Contracts\Service\Attribute\Required;
/**
 * @implements PhpDocTypeMapperInterface<UnionTypeNode>
 */
final class UnionTypeMapper implements PhpDocTypeMapperInterface
{
    /**
     * @var \Rector\StaticTypeMapper\PhpDoc\PhpDocTypeMapper
     */
    private $phpDocTypeMapper;
    /**
     * @readonly
     * @var \Rector\NodeTypeResolver\PHPStan\Type\TypeFactory
     */
    private $typeFactory;
    public function __construct(TypeFactory $typeFactory)
    {
        $this->typeFactory = $typeFactory;
    }
    public function getNodeType() : string
    {
        return UnionTypeNode::class;
    }
    /**
     * @required
     */
    public function autowire(PhpDocTypeMapper $phpDocTypeMapper) : void
    {
        $this->phpDocTypeMapper = $phpDocTypeMapper;
    }
    /**
     * @param UnionTypeNode $typeNode
     */
    public function mapToPHPStanType(TypeNode $typeNode, Node $node, NameScope $nameScope) : Type
    {
        $unionedTypes = [];
        foreach ($typeNode->types as $unionedTypeNode) {
            $unionedTypes[] = $this->phpDocTypeMapper->mapToPHPStanType($unionedTypeNode, $node, $nameScope);
        }
        // to prevent missing class error, e.g. in tests
        return $this->typeFactory->createMixedPassedOrUnionTypeAndKeepConstant($unionedTypes);
    }
}