Re: [Axiom-developer] Re: debugging

[Waldek Hebisch]

> Greetings!
> 
> 1) 'boot::|NRTassocIndex| (and others) calls elt on dotted lists of
>    the form ('|domain| s . s), whereas the spec says elt must take a
>    proper list.  elt is automatically inlined.
> 
> 2) somewhere in boot (by the depsys stage),
>    si::universal-error-handler is redefined to an old call sequence,
>    breaking 2.7 error reporting.
> 
> Workaround --
> 
> SYSTEM>(eval `(defun elt ,@(cdr (subst 'sequence 'proper-sequence 
> (function-src 'elt)))))
> 

Thanks for finding this error.  Concerning si::universal-error-handler,
this is done by ancient code in spaderror.lisp.  wh-sandbox constains
code to handle errors using Ansi condition system, but for GCL I still
used old handler.  The patch below unconditionally switches error
handling to Ansi way (so it will probably break non-Ansi GCL).
The algebra build should work with no error handler present.

diff -u /home/s/test/tt/axiom2/wh-sandbox/src/interp/bookvol5.pamphlet 
wh-sandbox/src/interp/bookvol5.pamphlet
--- /home/s/test/tt/axiom2/wh-sandbox/src/interp/bookvol5.pamphlet      
2007-06-13 03:16:18.000000000 +0200
+++ wh-sandbox/src/interp/bookvol5.pamphlet     2007-07-07 14:00:38.000000000 
+0200
@@ -682,9 +682,6 @@
   (setq |$currentLine| nil)
   (restart0)
   (|readSpadProfileIfThere|)
-  #+(or :GCL :CCL)
-  (|spad|)
-  #-(or :GCL :CCL)
   (handler-bind ((error #'spad-system-error-handler))
      (|spad|))
 )
diff -u /home/s/test/tt/axiom2/wh-sandbox/src/interp/spaderror.lisp.pamphlet 
wh-sandbox/src/interp/spaderror.lisp.pamphlet
--- /home/s/test/tt/axiom2/wh-sandbox/src/interp/spaderror.lisp.pamphlet        
2007-06-14 14:45:05.000000000 +0200
+++ wh-sandbox/src/interp/spaderror.lisp.pamphlet       2007-07-07 
13:59:59.000000000 +0200
@@ -48,14 +48,14 @@
 
 ;; this files contains basic routines for error handling
 (in-package "BOOT")
-
+#|
 #+(or :GCL :CCL)
 (defun error-format (message args)
   (let ((|$BreakMode| '|break|))
     (declare (special |$BreakMode|))
    (if (stringp message) (apply #'format nil message args) nil)))
+|#
 
-#-(or :GCL :CCL)
 (defun error-format (c)
   (let ((|$BreakMode| '|break|))
     (declare (special |$BreakMode|))
@@ -79,6 +79,7 @@
 
 ;; following macro evaluates form returning Union(type-of form, "failed")
 
+#|
 #+:GCL
 (defmacro |trapNumericErrors| (form)
   `(let ((|$oldBreakMode| |$BreakMode|)
@@ -87,8 +88,8 @@
      (setq val (catch '|trapNumerics| ,form))
      (if (eq val |$numericFailure|) val
        (cons 0 val))))
+|#
 
-#-(or :GCL :CCL)
 (defmacro |trapNumericErrors| (form)
     `(handler-case (cons 0 ,form)
          (arithmetic-error () |$numericFailure|)))
@@ -99,7 +100,6 @@
 ;;      (setq val (errorset ,form))
 ;;      (if (NULL val) |$numericFailure| (cons 0 (car val)))))
 
-#-(or :GCL :CCL)
 (defun spad-system-error-handler (c)
   (block nil
     (setq |$NeedToSignalSessionManager| T)
@@ -115,7 +115,7 @@
                    (throw '|letPrint2| nil))))))
         
 
-
+#|
 ;; the following form embeds around the akcl error handler
 #+:GCL
 (eval-when
@@ -148,7 +148,7 @@
                (apply system:universal-error-handler type correctable? op
                       continue-string error-string args )))))
 
-
+|#
 
 
 


-- 
                              Waldek Hebisch
address@hidden