| 1 |  |  | <?php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  |  * This file is part of sdl package. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  |  * For the full copyright and license information, please view the LICENSE | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  |  * file that was distributed with this source code. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  | declare(strict_types=1); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  | namespace Railt\SDL\Frontend\Ast\Definition\Common; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  | use Railt\Parser\Ast\NodeInterface; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  | use Railt\Parser\Ast\Rule; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  | use Railt\Parser\Ast\RuleInterface; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  | use Railt\SDL\IR\TypeHint; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  |  * Class TypeHintNode | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  | class TypeHintNode extends Rule | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  | { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 23 |  |  |      * @var TypeHint | 
            
                                                                                                            
                            
            
                                    
            
            
                | 24 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  |     private $hint; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 |  |  |      * TypeHintNode constructor. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 |  |  |      * @param string $name | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 |  |  |      * @param array $children | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 |  |  |      * @param int $offset | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  |     public function __construct(string $name, array $children = [], int $offset = 0) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  |         parent::__construct($name, $children, $offset); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 |  |  |         $this->hint = new TypeHint(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 38 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 |  |  |         foreach ($this->analyze($this->getChild(0)) as $child) { | 
                            
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                | 40 |  |  |             switch ($child) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 |  |  |                 case 'List': | 
            
                                                                                                            
                            
            
                                    
            
            
                | 42 |  |  |                     $this->hint->withModifiers(TypeHint::IS_LIST); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 43 |  |  |                     break; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 44 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 45 |  |  |                 case 'NonNull': | 
            
                                                                                                            
                            
            
                                    
            
            
                | 46 |  |  |                     $modifier = $this->hint->isList() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 47 |  |  |                         ? TypeHint::IS_LIST_OF_NOT_NULL | 
            
                                                                                                            
                            
            
                                    
            
            
                | 48 |  |  |                         : TypeHint::IS_NOT_NULL; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 49 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 50 |  |  |                     $this->hint->withModifiers($modifier); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 51 |  |  |                     break; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 52 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 57 |  |  |      * @param RuleInterface|NodeInterface $rule | 
            
                                                                                                            
                            
            
                                    
            
            
                | 58 |  |  |      * @return \Generator | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 59 |  |  |      */ | 
            
                                                                        
                            
            
                                    
            
            
                | 60 |  |  |     private function analyze(RuleInterface $rule): \Generator | 
            
                                                                        
                            
            
                                    
            
            
                | 61 |  |  |     { | 
            
                                                                        
                            
            
                                    
            
            
                | 62 |  |  |         $name = $rule->getName(); | 
            
                                                                        
                            
            
                                    
            
            
                | 63 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 64 |  |  |         if ($name !== 'TypeName') { | 
            
                                                                        
                            
            
                                    
            
            
                | 65 |  |  |             yield $name; | 
            
                                                                        
                            
            
                                    
            
            
                | 66 |  |  |             yield from $this->analyze($rule->getChild(0)); | 
                            
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                | 67 |  |  |         } | 
            
                                                                        
                            
            
                                    
            
            
                | 68 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 69 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 70 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 71 |  |  |      * @return int | 
            
                                                                                                            
                            
            
                                    
            
            
                | 72 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 73 |  |  |     public function getModifiers(): int | 
            
                                                                                                            
                            
            
                                    
            
            
                | 74 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 75 |  |  |         return $this->hint->getModifiers(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 76 |  |  |     } | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 77 |  |  | } | 
            
                                                        
            
                                    
            
            
                | 78 |  |  |  | 
            
                        
It seems like the type of the argument is not accepted by the function/method which you are calling.
In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug.
We suggest to add an explicit type cast like in the following example: