(describe *standard-input*) bombs

[Devon Sean McCullough]

Slime REPL buggy behavior:

CL-USER> (describe *standard-input*) ; bombs - The function COMMON-LISP-USER::GET-SLOTS is undefined.
CL-USER> (describe *standard-output*) ; bombs - The function COMMON-LISP-USER::GET-SLOTS is undefined.

SBCL REPL correct behavior:

This is SBCL 1.0.51.0-a546163, an implementation of ANSI Common Lisp.
More information about SBCL is available at <http://www.sbcl.org/>.

SBCL is free software, provided as is, with absolutely no warranty.
It is mostly in the public domain; some portions are provided under
BSD-style licenses. See the CREDITS and COPYING files in the
distribution for more information.
* (describe *standard-input*)

#<SYNONYM-STREAM :SYMBOL SB-SYS:*STDIN* {100E6761}>
  [stream]

Slots with :INSTANCE allocation:
  IN-BUFFER = NIL
  CIN-BUFFER = NIL
  IN-INDEX = 512
  IN = #<FUNCTION SB-IMPL::SYNONYM-IN>
  BIN = #<FUNCTION SB-IMPL::SYNONYM-BIN>
  N-BIN = #<FUNCTION SB-IMPL::SYNONYM-N-BIN>
  OUT = #<FUNCTION SB-IMPL::SYNONYM-OUT>
  BOUT = #<FUNCTION SB-IMPL::SYNONYM-BOUT>
  SOUT = #<FUNCTION SB-IMPL::SYNONYM-SOUT>
  MISC = #<FUNCTION SB-IMPL::SYNONYM-MISC>
  IN = #<FUNCTION SB-IMPL::SYNONYM-IN>
  BIN = #<FUNCTION SB-IMPL::SYNONYM-BIN>
  N-BIN = #<FUNCTION SB-IMPL::SYNONYM-N-BIN>
  OUT = #<FUNCTION SB-IMPL::SYNONYM-OUT>
  BOUT = #<FUNCTION SB-IMPL::SYNONYM-BOUT>
  SOUT = #<FUNCTION SB-IMPL::SYNONYM-SOUT>
  MISC = #<FUNCTION SB-IMPL::SYNONYM-MISC>
  SYMBOL = SB-SYS:*STDIN*

  Peace
   --Devon

PS: Details follow...

The function COMMON-LISP-USER::GET-SLOTS is undefined.
   [Condition of type UNDEFINED-FUNCTION]

Restarts:
 0: [RETRY]
 1: [ABORT] Return to sldb level 1.
 2: [RETRY]
 3: [ABORT]
 4: [REMOVE-FD-HANDLER]
 5: [ABORT]

Backtrace:
  0: ()
  1: ( )
  2: (SB-IMPL::STRINGIFY-OBJECT )
  3: (SB-IMPL::PRIN1-TO-LINE :COLUMNS 1 :RESERVE 0)
  4: (SB-IMPL::PRINT-STANDARD-DESCRIBE-HEADER )
  5: ( )
  6: (DESCRIBE )
  7: (SB-INT:SIMPLE-EVAL-IN-LEXENV )
  8: (EVAL )
  9: (SWANK::EVAL-REGION )
 10: ()
 11: (SWANK::TRACK-PACKAGE )
 12: (SWANK::CALL-WITH-RETRY-RESTART )
 13: (SWANK::CALL-WITH-BUFFER-SYNTAX NIL )
 14: (SWANK::REPL-EVAL )
 15: (SB-INT:SIMPLE-EVAL-IN-LEXENV )
 16: (EVAL )
 17: (SWANK::EVAL-FOR-EMACS 3809)
 18: (SWANK::SLDB-LOOP 1)
...
those blank backtrace frames look awfully wrong too.

[Stas Boukarev (stassats)]

I can't reproduce it. Can you do this in bare SBCL REPL?

[Devon Sean McCullough (k-launchpad-jovi-net)]

Closing - can no longer duplicate in SBCL 2.4.1 nor SBCL 2.1.8.58-5432ccf81