Re: GOOPS question

[Damien Mattei]

seems your template isn't working:

scheme@(guile-user)> (load "gvector.scm")

;;; note: source file
/Volumes/Mojave/Users/mattei/Dropbox/git/library-FunctProg/gvector.scm

;;;       newer than compiled
/Users/mattei/.cache/guile/ccache/2.2-LE-8-3.A/Volumes/Mojave/Users/mattei/Dropbox/git/library-FunctProg/gvector.scm.go

;;; note: auto-compilation is enabled, set GUILE_AUTO_COMPILE=0

;;;       or pass the --no-auto-compile argument to disable.

;;; compiling
/Volumes/Mojave/Users/mattei/Dropbox/git/library-FunctProg/gvector.scm

;;; compiled
/Users/mattei/.cache/guile/ccache/2.2-LE-8-3.A/Volumes/Mojave/Users/mattei/Dropbox/git/library-FunctProg/gvector.scm.go

scheme@(guile-user)> (define c2 (make <gvector>))

;;; <stdin>:2:11: warning: possibly unbound variable `make'

;;; <stdin>:2:11: warning: possibly unbound variable `<gvector>'

<unnamed port>:2:0: In procedure module-lookup: Unbound variable: make


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

scheme@(guile-user) [1]> ,bt

In current input:

      2:0  0 (_)

but things go well if i remove module part and add:

(use-modules (oop goops)
    (oop goops describe))

scheme@(guile-user)> (load "gvector.scm")

;;; note: source file
/Volumes/Mojave/Users/mattei/Dropbox/git/library-FunctProg/gvector.scm

;;;       newer than compiled
/Users/mattei/.cache/guile/ccache/2.2-LE-8-3.A/Volumes/Mojave/Users/mattei/Dropbox/git/library-FunctProg/gvector.scm.go

;;; note: auto-compilation is enabled, set GUILE_AUTO_COMPILE=0

;;;       or pass the --no-auto-compile argument to disable.

;;; compiling
/Volumes/Mojave/Users/mattei/Dropbox/git/library-FunctProg/gvector.scm

;;;
/Volumes/Mojave/Users/mattei/Dropbox/git/library-FunctProg/gvector.scm:21:2:
warning: possibly unbound variable `orig:vector-length'

;;;
/Volumes/Mojave/Users/mattei/Dropbox/git/library-FunctProg/gvector.scm:26:2:
warning: possibly unbound variable `orig:vector-set!'

;;;
/Volumes/Mojave/Users/mattei/Dropbox/git/library-FunctProg/gvector.scm:31:2:
warning: possibly unbound variable `orig:vector-ref'

;;; compiled
/Users/mattei/.cache/guile/ccache/2.2-LE-8-3.A/Volumes/Mojave/Users/mattei/Dropbox/git/library-FunctProg/gvector.scm.go

scheme@(guile-user)> (define c2 (make <gvector>))

scheme@(guile-user)> c2

$1 = #<<gvector> 109e82500>

scheme@(guile-user)> (describe c2)

#<<gvector> 109e82500> is an instance of class <gvector>

Slots are:

     v = #(#<unspecified> #<unspecified> #<unspecified> #<unspecified>
#<unspecified> #<unspecified> #<unspecified> #<unspecified>)

     length = 0

probably a module issue.... but i never use them with this Scheme
otherwise things go well (in other file ....)
Damien

On Fri, Apr 30, 2021 at 9:55 AM Mikael Djurfeldt <mikael@djurfeldt.com>
wrote:

> Hi!
>
> I attach a template which you could build on. Please post your class when
> you're done. :)
>
> Best regards,
> Mikael
>
> On Fri, Apr 30, 2021 at 1:11 AM Damien Mattei <damien.mattei@gmail.com>
> wrote:
>
>> hi,
>> i want to create a growable vector class in Guile,
>> such as std::vector or python list,
>> first i do not know if it exist already? seems not
>>
>> i want to use GOOPS but i do not understand how the superclass could be
>> accessed,used, instanciate...
>> for example in the doc there is:
>> (define-class <my-complex> (<number>) r i #:name "Complex")
>>
>> seems <number> superclass is of no use
>>
>> for my growable vector i would like to use array as superclass?
>> but perhaps should it be just a slot as array are a subset of growable
>> array ,so a subclass
>>
>> anyway if i write something ike that:
>> (define-class <gvector> (<array>) .....
>> how can i use the <array> object?
>>
>> i think perhaps i should not define a superclass or <object> as super
>> class....
>> any advice welcome...
>>
>> Damien
>>
>