Predicate nullCheckMethod

Holds if the evaluation of a call to m resulting in the value branch implies that the argument to the call is guaranteed to be null if isnull is true, and non-null if isnull is false.

Import path


                                import semmle.code.java.dataflow.NullGuards


                            
                                
                                    predicate
                                
                                 
                            
                            
                                nullCheckMethod
                            
                            
                                (
                                
                                    
                                        Method
                                    
                                     
                                    m
                                
                                , 
                                
                                    
                                        boolean
                                    
                                     
                                    branch
                                
                                , 
                                
                                    
                                        boolean
                                    
                                     
                                    isnull
                                
                                )