[slime-devel] Debugging variables

[Zadirion Fay]

Hello,

I am new to slime and Lisp in general. I did try searching google before
posting this but I can not seem to find any answer to this, so here goes:

(defun sample-function (x y)
    (if (> (+ x y) 15)
        (+ x y)
        (error "The sum of x and y must be greater than 15")))

(sample-function 3 4)


Given the above code, I can not seem to be able to display the value of x or
y for that matter once the debugger kicks in on the line with the error.
Once inside the debugger, I tried pressing 'i' for inspect and entered x.
Debugger replied with "unbound variable x blabla". Pressed 'e' for eval and
wrote (sb-debug:var x) with
same result (using sbcl here).

Here is exactly what the debugger posts:

The sum of x and y must be greater than 15
   [Condition of type SIMPLE-ERROR]

Restarts:
 0: [ABORT] Abort compilation.
 1: [ABORT] Return to SLIME's top level.
 2: [CLOSE-CONNECTION] Close SLIME connection
 3: [ABORT] Exit debugger, returning to top level.

Backtrace:
  0: (SAMPLE-FUNCTION 3 4)
  1: (SB-FASL::LOAD-FASL-GROUP #<SB-SYS:FD-STREAM for "file
C:\\Users\\Eddie\\AppData\\Local\\Temp\\16.fasl" {24165B59}>)
  2: ((FLET SB-THREAD::WITH-RECURSIVE-LOCK-THUNK))
  3: (SB-FASL::LOAD-AS-FASL #<SB-SYS:FD-STREAM for "file
C:\\Users\\Eddie\\AppData\\Local\\Temp\\16.fasl" {24165B59}> NIL
#<unavailable argument>)
  4: ((FLET SB-FASL::LOAD-STREAM) #<SB-SYS:FD-STREAM for "file
C:\\Users\\Eddie\\AppData\\Local\\Temp\\16.fasl" {24165B59}> T)
  5: (LOAD #P"C:\\Users\\Eddie\\AppData\\Local\\Temp\\16.fasl")[:EXTERNAL]
  6: ((FLET SWANK-BACKEND:SWANK-COMPILE-STRING) "(sample-function 3 4)"
:BUFFER "new.lisp" :POSITION 133 :FILENAME NIL :POLICY NIL)
  7: ((LAMBDA ()))
  8: ((LAMBDA ()))
 --more--


Can anyone please help? I am getting really depressed here :(

Thanks,

Eddie
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