docs: def _scan_soot_block(self, cfg_job, current_func_addr):
          """
          Generate a list of successors (generating them each as entries) to IRSB.
          Updates previous CFG nodes with edges.
  
          :param CFGJob cfg_job: The CFGJob instance.
          :param int current_func_addr: Address of the current function
          :return: a list of successors
          :rtype: list
          """
  
          addr, function_addr, cfg_node, soot_block = self._generate_cfgnode(cfg_job, current_func_addr)
  
          # Add edges going to this node in function graphs
          cfg_job.apply_function_edges(self, clear=True)
  
          # function_addr and current_function_addr can be different. e.g. when tracing an optimized tail-call that jumps
          # into another function that has been identified before.
  
          if cfg_node is None:
              # exceptions occurred, or we cannot get a CFGNode for other reasons
              return [ ]
  
          self._graph_add_edge(cfg_node, cfg_job.src_node, cfg_job.jumpkind, cfg_job.src_ins_addr,
                               cfg_job.src_stmt_idx
                               )
          self._function_add_node(cfg_node, function_addr)
  
          # If we have traced it before, don't trace it anymore
          if addr in self._traced_addresses:
              # the address has been traced before
              return [ ]
          else:
              # Mark the address as traced
              self._traced_addresses.add(addr)
  
          # soot_block is only used once per CFGNode. We should be able to clean up the CFGNode here in order to save memory
          cfg_node.soot_block = None
  
          successors = self._soot_get_successors(addr, current_func_addr, soot_block, cfg_node)
  
          entries = [ ]
  
          for suc in successors:
              stmt_idx, stmt_addr, target, jumpkind = suc
  
              entries += self._create_jobs(target, jumpkind, function_addr, soot_block, addr, cfg_node, stmt_addr,
                                           stmt_idx
                                           )
  
          return entries