Predicate hasDescendant

Holds if reference type anc is a direct or indirect supertype of sub, including itself.

Import path


                                import java


                            
                                
                                    predicate
                                
                                 
                            
                            
                                hasDescendant
                            
                            
                                (
                                
                                    
                                        RefType
                                    
                                     
                                    anc
                                
                                , 
                                
                                    
                                        Type
                                    
                                     
                                    sub
                                
                                )