[Gambas-user] Segfault when overriding Variant[]

[tobi]

On Tue, 01 May 2012, Benoît Minisini wrote:
> Le 01/05/2012 10:47, tobi a écrit :
> > On Tue, 01 May 2012, tobi wrote:
> >> Hi,
> >>
> >> I promptly get a segfault when I try to create an instance of my extended Variant[]:
> >>
> >> .src/Variant[].class
> >> --8<---------
> >> ' Gambas class file
> >>
> >> Export
> >>
> >> Public Sub _compare(hV As Variant[]) As Integer
> >>    Return 0
> >> End
> >> --8<---------
> >>
> >> .src/MMain.module
> >> --8<---------
> >> ' Gambas module file
> >>
> >> Public Sub Main()
> >>    Dim hV As New Variant[]
> >> End
> >> --8<---------
> >>
> >> I hope that it's possible to override native classes?
> >>
> >> Regards,
> >> Tobi
> >
> > Oh, I should look first and then post...
> > Segfault comes from
> > gbx_class.c:1358:
> > 	array_type->array_class = class;
> > but before that in the same function:
> > 	CLASS *array_type = (CLASS *)class->array_type;
> > and look at:
> > (gdb) print class->array_type
> > $2 = 12
> >
> > which is GB_T_VARIANT, as supposed to be since I exported a Variant[].
> > I think creating that as a pointer is a bug. (Creating arrays of native datatypes not expected?)
> >
> > The article about Gambas object model says that gb.qt Application extends gb Application so, I am
> > allowed to extend native classes!
> >
> > Regards,
> > Tobi
> >
> 
> Hu hu. It should be possible to override any class, but please provide a 
> project so that I can debug!
> 
> -- 
> Benoît Minisini
> 
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Again, the attached project is not created with the IDE, I keep copying the project structure of one
to another for months ;) But it works fine with gbc3 and gbx3...
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