.BG
.FN debugger
.TL
Computational State at the Time of an Error
.CS
debugger(data=last.dump)
.AG data
list that describes the state of the computation at the time
of the error.
The
.Co names
attribute of `data' gives the character form of the
calls.
Each element of `data' is one frame (itself a list) of the execution
stack at the time of the error.
.PP
The `debugger' function allows you to browse among the
frames associated with the various calls.
See documentation for `browser' to learn more about the interactive
interface presented by `debugger'.
.SA
`dump.calls', `dump.frames', `traceback', `browser'.
.KW error
.WR
