792     @contract(exits='ArcStarts')
793     def process_break_exits(self, exits):  argument
797                 block.break_exits.update(exits)
800                 block.break_from.update(exits)
803     @contract(exits='ArcStarts')
804     def process_continue_exits(self, exits):  argument
808                 for xit in exits:
812                 block.continue_from.update(exits)
815     @contract(exits='ArcStarts')
816     def process_raise_exits(self, exits):  argument
821                     for xit in exits:
825                     block.raise_from.update(exits)
828                 for xit in exits:
835     @contract(exits='ArcStarts')
836     def process_return_exits(self, exits):  argument
840                 block.return_from.update(exits)
843                 for xit in exits:
909         exits = self.add_body_arcs(node.body, from_start=from_start)
911         for xit in exits:
914         exits = my_block.break_exits
918             exits |= else_exits
921             exits.add(from_start)
922         return exits
933         exits = self.add_body_arcs(node.body, from_start=from_start)
935         exits |= self.add_body_arcs(node.orelse, from_start=from_start)
936         return exits
941         exits = self.add_body_arcs(node.body, from_start=ArcStart(start))
942         return exits
976         exits = self.add_body_arcs(node.body, from_start=ArcStart(start))
1005             exits = self.add_body_arcs(node.orelse, prev_starts=exits)
1007         exits |= handler_exits
1012                 exits |                         # the exits of the body or `else` clause,
1062             if exits:
1065                 exits = final_exits
1067         return exits
1069     @contract(starts='ArcStarts', exits='ArcStarts', returns='ArcStarts')
1070     def _combine_finally_starts(self, starts, exits):  argument
1082         exits = set(ArcStart(xit.lineno, cause) for xit in exits)
1083         return exits
1118         exits = self.add_body_arcs(node.body, from_start=from_start)
1119         for xit in exits:
1121         exits = set()
1123         exits.update(my_block.break_exits)
1127             exits |= else_exits
1131                 exits.add(from_start)
1132         return exits
1137         exits = self.add_body_arcs(node.body, from_start=ArcStart(start))
1138         return exits
1145             exits = self.add_body_arcs(node.body, from_start=ArcStart(-start))
1146             for xit in exits:
1156         exits = self.add_body_arcs(node.body, from_start=ArcStart(-start))
1157         self.process_return_exits(exits)
1165         exits = self.add_body_arcs(node.body, from_start=ArcStart(start))
1166         for xit in exits: