Re: module system / (oop goops) / :duplicates (merge-generics) / bug?

[David Pirotte <david@altosw.be>]

Hi Andy,
Ludovic,

Any news about the following problem I reported ? I am kindly pinging you both, as
it is very difficult to [smoothly] work with goops until this problem is solved - unless, on
purpose, you do not give identical names to any slot pertaining to different classes,
but this is kind of a 'nightmare' in a 'real world'.

Thanks,
David

;; --

> Ah, funny, I thought the version would always correspond to what you
> had.  But that is not the case:
> 
>   wingo@badger:~/src/guile$ git describe
>   v2.0.2-7-gae88d9b
>   wingo@badger:~/src/guile$ meta/guile
>   GNU Guile 2.0.2.4-c1e3e
> 
> I guess what I meant was that you needed a newer Guile, but you might
> have a new enough one.  Hmm.

I think I did put a finger on some deeper problem! At first, as it is still is not
working here in a more 'complex environment', I did build a slightly modified
version using gtk but not yet 'realizing' the widgets [attached].

It seemed it worked on one machine but not on the other. Suspecting a 'strange'
collateral effect on whether I did or not put (default-duplicate-binding-handler
'(merge-generics replace warn-override-core warn last)) in my init.scm file, using
or not the #:duplicates ... in mg-wgtk-3.scm and, couple of hours later, almost ready
to knock my head on the wall while just trying to simply produce a reproducable
'something' for you. :), than I spotted it!

	it only works the first time! then guile compiles and caches the .go files
	but does something 'different' in memory [I guess]

	the second time, it load the .go and fails to dispatch

Here is a track on the 'latest' version [by number at least]:

In a terminal:
[I first remove the *.go concerned files [the location will depend off course ...]

david@rascar:~/.cache/guile/ccache/2.0-LE-4-2.0/usr/local/share/guile/alto/2.0/tests 6 $ rm -f *.go
david@rascar:~/.cache/guile/ccache/2.0-LE-4-2.0/usr/local/share/guile/alto/2.0/tests 7 $ ll
total 0

In my emacs:

david@rascar:~ 13 $ guile-gnome-2 
GNU Guile 2.0.2.7-ae88d
...
scheme@(guile-user)> (use-modules (mg-wgtk-3))
(letstry)

;;; note: auto-compilation is enabled, set GUILE_AUTO_COMPILE=0
;;;       or pass the --no-auto-compile argument to disable.
;;; compiling /usr/local/share/guile/alto/2.0/tests/mg-wgtk-3.scm
;;; compiling /usr/local/share/guile/alto/2.0/tests/mg-wgtk-1.scm
;;; compiled /usr/alto/staff/david/.cache/guile/ccache/2.0-LE-4-2.0/usr/local/share/guile/alto/2.0/tests/mg-wgtk-1.scm.go
;;; compiling /usr/local/share/guile/alto/2.0/tests/mg-wgtk-2.scm
;;; compiled /usr/alto/staff/david/.cache/guile/ccache/2.0-LE-4-2.0/usr/local/share/guile/alto/2.0/tests/mg-wgtk-2.scm.go
WARNING: (mg-wgtk-3): `dialog' imported from both (mg-wgtk-1) and (mg-wgtk-2)
;;; compiled /usr/alto/staff/david/.cache/guile/ccache/2.0-LE-4-2.0/usr/local/share/guile/alto/2.0/tests/mg-wgtk-3.scm.go
Top level dialog: #<<gtk-window> 9ab4d10>
Printing dialog: #<<gtk-message-dialog> 9ab4600>
$1 = #t
scheme@(guile-user)> ,q
david@rascar:~ 14 $ guile-gnome-2 
GNU Guile 2.0.2.7-ae88d
...
scheme@(guile-user)> (use-modules (mg-wgtk-3))
(letstry)

WARNING: (mg-wgtk-3): `dialog' imported from both (mg-wgtk-1) and (mg-wgtk-2)
ERROR: In procedure scm-error:
ERROR: No applicable method for #<<accessor> dialog (1)> in call (dialog #<<tl-widget> a1ccba0>)

Entering a new prompt.  Type `,bt' for a backtrace or `,q' to continue.