[Sbcl-help] How to debug the dynamically generated code?

[Roman M. <rom...@gm...>]

Hello,

  I want to debug the code which is generated and compiled during the
program execution. While there is a workaround (I can dump the code into a
file and load it on the fly), I would like to ask for a more elegant
solution (if any).

  The next very simplified code demonstrates the real-life problem:

(declaim (optimize (debug 3) (speed 0) (safety 3)))

(defun generate-lambda (x)
  `(lambda ()
     (let ((y ,(+ x 7))
            (z ,(* x x)))
       (break)
       (print y)
       (print z))))

(defun test ()
  (let ((lm (generate-lambda 8)))
    (funcall (compile nil lm))))

After this code is compiled and loaded, I evaluate (test) and SLIME shows
that there is no information about the locals in the generated lambda:


Backtrace:
  0: (BREAK "break")
  1: ((LAMBDA ()))
      [No Locals]
  2: (TEST)
      Locals:
        LM = (LAMBDA () ..)
  3: (SB-INT:SIMPLE-EVAL-IN-LEXENV (TEST) #<NULL-LEXENV>)
  4: ((LAMBDA ()))

Is there any way to make these local variables visible?

Thank you,
Roman