*/ final class PropertyFetchTypeResolver implements \Rector\NodeTypeResolver\Contract\NodeTypeResolverInterface { /** * @var \Rector\NodeTypeResolver\NodeTypeResolver */ private $nodeTypeResolver; /** * @var \Rector\NodeNameResolver\NodeNameResolver */ private $nodeNameResolver; /** * @var \PHPStan\Reflection\ReflectionProvider */ private $reflectionProvider; /** * @var \Rector\Core\PhpParser\Node\BetterNodeFinder */ private $betterNodeFinder; public function __construct(\Rector\NodeNameResolver\NodeNameResolver $nodeNameResolver, \PHPStan\Reflection\ReflectionProvider $reflectionProvider, \Rector\Core\PhpParser\Node\BetterNodeFinder $betterNodeFinder) { $this->nodeNameResolver = $nodeNameResolver; $this->reflectionProvider = $reflectionProvider; $this->betterNodeFinder = $betterNodeFinder; } /** * @required */ public function autowire(\Rector\NodeTypeResolver\NodeTypeResolver $nodeTypeResolver) : void { $this->nodeTypeResolver = $nodeTypeResolver; } /** * @return array> */ public function getNodeClasses() : array { return [\PhpParser\Node\Expr\PropertyFetch::class]; } /** * @param \PhpParser\Node $node */ public function resolve($node) : \PHPStan\Type\Type { // compensate 3rd party non-analysed property reflection $vendorPropertyType = $this->getVendorPropertyFetchType($node); if (!$vendorPropertyType instanceof \PHPStan\Type\MixedType) { return $vendorPropertyType; } $scope = $node->getAttribute(\Rector\NodeTypeResolver\Node\AttributeKey::SCOPE); if (!$scope instanceof \PHPStan\Analyser\Scope) { $classLike = $this->betterNodeFinder->findParentType($node, \PhpParser\Node\Stmt\ClassLike::class); // fallback to class, since property fetches are not scoped by PHPStan if ($classLike instanceof \PhpParser\Node\Stmt\ClassLike) { $scope = $classLike->getAttribute(\Rector\NodeTypeResolver\Node\AttributeKey::SCOPE); } if (!$scope instanceof \PHPStan\Analyser\Scope) { return new \PHPStan\Type\MixedType(); } } return $scope->getType($node); } private function getVendorPropertyFetchType(\PhpParser\Node\Expr\PropertyFetch $propertyFetch) : \PHPStan\Type\Type { // 3rd party code $propertyName = $this->nodeNameResolver->getName($propertyFetch->name); if ($propertyName === null) { return new \PHPStan\Type\MixedType(); } $varType = $this->nodeTypeResolver->getType($propertyFetch->var); if (!$varType instanceof \PHPStan\Type\ObjectType) { return new \PHPStan\Type\MixedType(); } if (!$this->reflectionProvider->hasClass($varType->getClassName())) { return new \PHPStan\Type\MixedType(); } $classReflection = $this->reflectionProvider->getClass($varType->getClassName()); if (!$classReflection->hasProperty($propertyName)) { return new \PHPStan\Type\MixedType(); } $propertyFetchScope = $propertyFetch->getAttribute(\Rector\NodeTypeResolver\Node\AttributeKey::SCOPE); if ($propertyFetchScope === null) { return new \PHPStan\Type\MixedType(); } $propertyReflection = $classReflection->getProperty($propertyName, $propertyFetchScope); return $propertyReflection->getReadableType(); } }