<?php

declare (strict_types=1);
namespace Rector\NodeCollector\ScopeResolver;

use PhpParser\Node;
use PHPStan\Analyser\Scope;
use PHPStan\Reflection\ClassReflection;
use Rector\NodeTypeResolver\Node\AttributeKey;
final class ParentClassScopeResolver
{
    public function resolveParentClassName(\PhpParser\Node $node) : ?string
    {
        $scope = $node->getAttribute(\Rector\NodeTypeResolver\Node\AttributeKey::SCOPE);
        if (!$scope instanceof \PHPStan\Analyser\Scope) {
            return null;
        }
        $classReflection = $scope->getClassReflection();
        if (!$classReflection instanceof \PHPStan\Reflection\ClassReflection) {
            return null;
        }
        $parentClassReflection = $classReflection->getParentClass();
        if ($parentClassReflection === \false) {
            return null;
        }
        return $parentClassReflection->getName();
    }
}