| 1 |  |  | <?php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  | declare(strict_types=1); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  | namespace Doctrine\Annotations\Parser\Reference; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  | use Doctrine\Annotations\Parser\Ast\Reference; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  | use Doctrine\Annotations\Parser\Scope; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  | use ReflectionClass; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  | use ReflectionFunction; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  | use ReflectionFunctionAbstract; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  | use ReflectionMethod; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  | use ReflectionProperty; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  | use Reflector; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  | use function assert; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  | use function explode; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  | use function strpos; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  | use function strtolower; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  |  * @internal | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 22 |  |  |  */ | 
            
                                                                        
                            
            
                                    
            
            
                | 23 |  |  | final class FallbackReferenceResolver implements ReferenceResolver | 
            
                                                                        
                            
            
                                    
            
            
                | 24 |  |  | { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 | 19 |  |     public function resolve(Reference $reference, Scope $scope) : string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 | 19 |  |         $identifier = $reference->getIdentifier(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 | 19 |  |         $imports    = $scope->getImports(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 | 19 |  |         if ($reference->isFullyQualified()) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 | 7 |  |             return $identifier; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 | 12 |  |         $identifierLower = strtolower($identifier); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 | 12 |  |         if (isset($imports[$identifierLower])) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 | 2 |  |             return $imports[$identifierLower]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 38 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 40 | 10 |  |         if (strpos($identifierLower, '\\') !== false) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 |  |  |             $namespacePart = explode('\\', $identifierLower, 2)[0]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 42 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 43 |  |  |             if (isset($imports[$namespacePart])) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 44 |  |  |                 return $imports[$namespacePart] . '\\' . explode('\\', $identifier, 2)[1]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 45 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 46 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 47 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 48 | 10 |  |         $subject = $scope->getSubject(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 49 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 50 | 10 |  |         if (! $subject instanceof ReflectionClass && ! $subject instanceof ReflectionFunctionAbstract) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 51 | 1 |  |             return $identifier; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 52 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 | 9 |  |         $namespace = $this->getSubjectNamespaceName($scope->getSubject()); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 | 9 |  |         if ($namespace === '') { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 57 | 4 |  |             return $identifier; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 58 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 59 |  |  |  | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 60 | 5 |  |         return $namespace . '\\' . $identifier; | 
            
                                                                        
                            
            
                                    
            
            
                | 61 |  |  |     } | 
            
                                                                        
                            
            
                                    
            
            
                | 62 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 63 | 9 |  |     private function getSubjectNamespaceName(Reflector $subject) : string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 64 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 65 | 9 |  |         if ($subject instanceof ReflectionClass || $subject instanceof ReflectionFunction) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 66 | 9 |  |             return $subject->getNamespaceName(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 67 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 68 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 69 |  |  |         if ($subject instanceof ReflectionProperty || $subject instanceof ReflectionMethod) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 70 |  |  |             return $subject->getDeclaringClass()->getNamespaceName(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 71 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 72 |  |  |  | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 73 |  |  |         assert(false, 'Unsupported Reflector'); | 
                            
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                | 74 |  |  |     } | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 75 |  |  | } | 
            
                                                        
            
                                    
            
            
                | 76 |  |  |  | 
            
                        
For hinted functions/methods where all return statements with the correct type are only reachable via conditions, ?null? gets implicitly returned which may be incompatible with the hinted type. Let?s take a look at an example: