| 27 | 27 | To execute the LINES inside the on-unit, the absentee_listen_$execute_handler is called to establish a run-time environment in which to execute the on-unit lines. This is the equivalent of pushing a new stack frame onto the user stack in which to run a PL/I on-unit. The on-unit has access to the variables and labels setup by the outer script. So when the execute_handler entry allocates a new abs_data structure, it copies all of the data from the outer-script's abs_data into the new abs_data structure to capture this outer information. It then initializes some elements of the new structure for the on-unit's environment, while preserving data for the outer-script. |
