This section describes the direct commands the debugger provides for controlling the program flow during a debugging session. For a summary of all commands available with the debugger, refer to Command Summary and Syntax.
The commands listed below only apply when the debugger interrupts program execution.
This command can only be used when a Natural object has been interrupted within a processing loop.
When you enter this command, the interrupted Natural object will be continued with the first statement following the processing loop.
Note:
This command can be disallowed by Natural Security as described in
Components
of an Environment Profile in the Natural
Security documentation.
When you enter this command, processing of the interrupted Natural
object will be stopped and processing will continue with the object from which
the interrupted Natural object was invoked; it will continue with the statement
following the corresponding CALLNAT, PERFORM or
FETCH RETURN statement.
If you apply the command ESCAPE ROUTINE to a
main program, Natural ends the program and returns to the command mode.
Note:
This command can be disallowed by Natural Security as described in
Components
of an Environment Profile in the Natural
Security documentation.
If you are displaying the Debug Main Menu and want
to invoke the exit function, choose PF3 (Exit) or enter the
execution control command EXIT, the debugger returns
either to the calling program (that is, to the interrupted Natural object which
is then continued) or to a command prompt, if the debugger has been invoked
with the direct command TEST, or to the
corresponding input field if it has been invoked by the terminal command
%<TEST. However, if a breakpoint or watchpoint is
currently active, the next command of this breakpoint or watchpoint is
executed.
If you are not in the Debug Main Menu and enter the
direct command EXIT or choose PF3 (Exit),
you leave the current function and return to the previous step of your
debugging session.
When you enter the direct command GO (or
choose PF14), the debugger returns control to the execution of the
interrupted Natural object. If a breakpoint or watchpoint was active at the
time the Natural object was interrupted, the remaining commands of this break
or watchpoint are not executed.
When you enter the direct command NEXT (or
choose PF13), the next command specified for a breakpoint or
watchpoint is executed. If no further command has been specified, program
execution continues.
When you enter the direct command RUN, test
mode is switched off and program execution continues, without investigating any
further breakpoints and watchpoint.
When you enter the direct command STEP, an
interrupted Natural object is continued for n
executable statement. The default value for n is
1.
When you enter the direct command STEP
SKIPSUBLEVEL upon a statement which invokes another object (for
example, CALLNAT), processing is continued with the next
executable statement in the current object instead of the first executed
statement in the invoked object).
If this command is applied to a statement that does not invoke another
object, the debugger reacts as if the command STEP
had been entered.
With the command STEP SKIPSUBLEVEL, you can
specify a superior level number n. Step mode then
continues within the next object at the specified level. For example: If you
enter STEP SKIPSUBLEVEL 2 in an object at level 4,
you continue step mode in the object at level 2.
Object level information can be obtained with the command
OBJCHAIN as
described in the section Navigation and Information
Commands.
When you enter the direct command STOP, both
the debugger and any interrupted Natural object are terminated.
Note:
This command can be disallowed by Natural Security as described in
Components
of an Environment Profile in the Natural
Security documentation.