The stoplast function sets a breakpoint in the procedure that most recently raised an exception in the active Maple session.  The next time that procedure is invoked, the debugger is activated (see stopat).

The stoplast function accepts one optional integer argument.  If statNum is specified, stoplast stops at the specified statement in the procedure instead of at the beginning of the procedure.  This argument is equivalent to the statNum argument to the stopat() function.  For more information, see stopat.

foo := proc() error "test"; end proc;

Error, (in foo) test

Error, (in foo) test