Re: [Vala] Bug in vala compiler ? Add NULL argument to an extern function

[Abderrahim Kitouni <a kitouni gmail com>]

Hi,
                             في ن، 31-05-2010 عند 13:50 +0000 ، كتب Séb:
> Hello, I've got a compilation problem with vala during the generation of 
> the C code.
>
> In the C code, vala add a new argument in an extern function :

> What does the NULL here ? It seems a bug in the compiler but maybe I'm 
> wrong in the delegate declaration…
The NULL here is the instance pointer, it's null because you passed a
static method. if your delegate isn't passed with a "user data"
parameter, it should be annotated with [CCode (has_target=false)].

> and the vapi : libftw.vapi
> [CCode (cprefix = "", lower_case_cprefix = "", cheader_filename = 
> "ftw.h")]
> namespace FTW {
>
>     [CCode (cname = "__ftw_func_t")]
should be:
     [CCode (cname = "__ftw_func_t", has_target=false)]
>     public delegate int ftw_func_t(char* name, int* status, int type);

HTH,
Abderrahim