************************************** SOURCE CODE **************************************************

(defun bob ()
  (+ (- 3 2) (- 2 1)))

(step (bob))


************************************** OUTPUT (after loaded into REPL)********************************

1: (SYSTEM:FUNCTION-INFORMATION BOB NIL NIL T)
[STEP] CL-USER(2):
  2: (SPECIAL-OPERATOR-P BOB)
[STEP] CL-USER(2):
   3: (FUNCTION-NAME-P BOB)                                 <--------------- Here; inner workings of REPL
[STEP] CL-USER(2):
   result 3: T
   3: (FBOUNDP BOB)                                         <---------------- Here also and so on.
[STEP] CL-USER(2):
   result 3: #<Function BOB>
  result 2: NIL
  2: (MACRO-FUNCTION BOB)
[STEP] CL-USER(2):
   3: (FBOUNDP BOB)
[STEP] CL-USER(2):
   result 3: #<Function BOB>
   3: (EXCL::MACRO-CLOSURE-OBJECT-P #<Function BOB>)
[STEP] CL-USER(2):
   result 3: NIL
  result 2: NIL
  2: (FBOUNDP BOB)
[STEP] CL-USER(2):
  result 2: #<Function BOB>
  2: (SPECIAL-OPERATOR-P BOB)
[STEP] CL-USER(2):
   3: (FUNCTION-NAME-P BOB)
[STEP] CL-USER(2):
   result 3: T
   3: (FBOUNDP BOB)
[STEP] CL-USER(2):
   result 3: #<Function BOB>
  result 2: NIL
 result 1: :FUNCTION  NIL  NIL
 1: (FDEFINITION BOB)
[STEP] CL-USER(2):
  2: (FBOUNDP BOB)
[STEP] CL-USER(2):
  result 2: #<Function BOB>
 result 1: #<Function BOB>
 1: (EXCL::%INVOKE #<Function BOB> NIL)
[STEP] CL-USER(2):
  2: (BOB)
[STEP] CL-USER(2):
  result 2: 2
 result 1: 2
T