Member predicate DataFlow :: Configuration :: isBarrierEdge

Holds if flow with label lbl cannot flow from pred to succ.

                            
                                
                                    predicate
                                
                                 
                            
                            
                                isBarrierEdge
                            
                            
                                (
                                
                                    
                                        Node
                                    
                                     
                                    pred
                                
                                , 
                                
                                    
                                        Node
                                    
                                     
                                    succ
                                
                                , 
                                
                                    
                                        FlowLabel
                                    
                                     
                                    lbl
                                
                                )