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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace Padawan\Parser;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use phpDocumentor\Reflection\DocBlock;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use phpDocumentor\Reflection\DocBlock\Tag;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use phpDocumentor\Reflection\DocBlock\Context;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Padawan\Domain\Project\Node\Comment;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Padawan\Domain\Project\Node\MethodParam;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Padawan\Domain\Project\Node\Variable;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Padawan\Domain\Project\Node\ClassProperty;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                class CommentParser  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                { | 
            
            
                                                                        
                            
            
                                    
            
            
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                    public function __construct(UseParser $useParser) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $this->useParser = $useParser;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Parses DocComment block  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param string $doc  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return Comment  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function parse($doc) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $text = $doc;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if (is_array($doc)) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $doc = array_shift($doc);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $text = $doc->getText();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $comment = new Comment(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $this->trimComment($text)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->parseDoc($comment, $text);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return $comment;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Parses doc comment and populates comment entity  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param string $text  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    protected function parseDoc(Comment $comment, $text) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $context = $this->getContext();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        try { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $block = new DocBlock($text, $context);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            foreach ($block->getTags() AS $tag) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                switch ($tag->getName()) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                case "param":  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    $comment->addVar(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                        $this->createMethodParam($tag)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    break;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                case "var":  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    $comment->addVar(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                        $this->createVar($tag)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    break;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                case "return":  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    $comment->setReturn(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                        $this->getFQCN($tag->getType())  | 
            
                            
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                                    );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    break;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                case "property":  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                case "property-read":  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                case "property-write":  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    $comment->addProperty(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                        $this->createProperty($tag)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    break;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                case "inheritdoc":  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    $comment->markInheritDoc();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    break;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        catch (\Exception $e) { | 
            
                            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                                                    
                                                                                                        
            
            
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                View Code Duplication | 
                    protected function createMethodParam(Tag $tag) { | 
            
                            
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                        $name = trim($tag->getVariableName(), '$');  | 
            
                            
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                        $param = new MethodParam($name);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $param->setType($this->getFQCN($tag->getType()));  | 
            
                            
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                        return $param;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                                                    
                                                                                                        
            
            
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                View Code Duplication | 
                    protected function createVar(Tag $tag) { | 
            
                            
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                        $name = trim($tag->getVariableName(), '$');  | 
            
                            
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                        $param = new Variable($name);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $param->setType($this->getFQCN($tag->getType()));  | 
            
                            
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                        return $param;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                                                    
                                                                                                        
            
            
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                View Code Duplication | 
                    protected function createProperty(Tag $tag) { | 
            
                            
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                        $name = trim($tag->getVariableName(), '$');  | 
            
                            
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                        $prop = new ClassProperty;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $prop->name = $name;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $prop->setType($this->getFQCN($tag->getType()));  | 
            
                            
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                        return $prop;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Creates FQN by type string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param string $type  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return \Padawan\Domain\Project\FQCN  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    protected function getFQCN($type) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return $this->useParser->parseType($type);  | 
            
                            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    protected function trimComment($comment) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $lines = explode("\n", $comment); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        foreach ($lines AS $key => $line) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $lines[$key] = preg_replace([  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                "/^\/\**/",  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                "/^ *\* */",  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                "/\**\/$/"  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            ], "", $line);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $text = implode("\n", $lines); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return utf8_encode($text);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    128
                 | 
                                    
                                                     | 
                
                 | 
                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    129
                 | 
                                    
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                 | 
                     * @return Context  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    130
                 | 
                                    
                                                     | 
                
                 | 
                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    131
                 | 
                                    
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                 | 
                    protected function getContext() { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    132
                 | 
                                    
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                 | 
                        $uses = $this->useParser->getUses();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    133
                 | 
                                    
                                                     | 
                
                 | 
                        $namespace = $uses->getFQCN()->toString();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    134
                 | 
                                    
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                 | 
                        $aliases = array_map(function($fqcn) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    135
                 | 
                                    
                                                     | 
                
                 | 
                            return $fqcn->toString();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    136
                 | 
                                    
                                                     | 
                
                 | 
                        }, $uses->all());  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    137
                 | 
                                    
                                                     | 
                
                 | 
                        return new Context($namespace, $aliases);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    138
                 | 
                                    
                                                     | 
                
                 | 
                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    139
                 | 
                                    
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                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    140
                 | 
                                    
                                                     | 
                
                 | 
                    /** @property UseParser */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    141
                 | 
                                    
                                                     | 
                
                 | 
                    private $useParser;  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
                | 
                    142
                 | 
                                    
                                                     | 
                
                 | 
                }  | 
            
            
                                                        
            
                                    
            
            
                | 
                    143
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                        
Let’s take a look at an example:
In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different sub-classes of User which does not have a getDisplayName() method, the code will break.
Available Fixes
Change the type-hint for the parameter:
Add an additional type-check:
Add the method to the parent class: