Re: [Vala] Manual VAPI writing

[Julian Andres Klode <jak debian org>]

On Di, 2010-06-29 at 22:15 +0100, Harry Van Haaren wrote:
> Andrea wrote:
>
> > if your intent is to bind ad use the add function your binding it's
> > quite right, but can be simpler:
> >
> > [CCode (cheader_filename="bindMe.h")]
> > namespace Math
> > {
> >         [CCode (cname="add")]
> >        public static int add (int a, int b);
> > }
> Thanks, that's what I needed to hear ;-)
>
> I'm working on a LibSndFile wrapper, that's the reason for learning
> wrapping.
> I've got the a small part working, but not much (yet). I'm compiling with
> valac --save-temps,
> and analysing the output to work out where my errors are.
>
> I'm getting stuck on "enum" types, that are *NOT* in a namespace.
> Eg: the name of the enum IS what to call that in the output C file.
>
> enum
> {    /* True and false */
>     SF_FALSE    = 0,
>     SF_TRUE        = 1,
>     /* Modes for opening files. */
>     SFM_READ    = 0x10,
>     SFM_WRITE    = 0x20,
>     SFM_RDWR    = 0x30,
>     SF_AMBISONIC_NONE        = 0x40,
>     SF_AMBISONIC_B_FORMAT    = 0x41
> } ;
>
> Is the one I'm stuck on now. I tried this in the .vapi:
> class Sndfile
> { // all other functions ommitted for brevity
>     [CCode (cname="")]
>     public enum FileMode
>     {    /* True and false */
>         SF_FALSE    = 0,
>         SF_TRUE        = 1,
>         /* Modes for opening files. */
>         SFM_READ    = 0x10,
>         SFM_WRITE    = 0x20,
>         SFM_RDWR    = 0x30,
>         SF_AMBISONIC_NONE        = 0x40,
>         SF_AMBISONIC_B_FORMAT    = 0x41
>     }
> }
>
> but the C output goes like so  SNDFILE_FILE_MODE_SFM_READ  while I want
> SFM_READ.
> I hoped that the  cname=""  would clear the SNDFILE_FILE_MODE_  from the
> start but it didnt..
>
> Any pointers as to how to do this? Cheers, -Harry
Use cprefix="" - maybe you also need to set cname="int" in order to have
Vala know what to call the type of the values.

-- 
Julian Andres Klode  - Debian Developer, Ubuntu Member

See http://wiki.debian.org/JulianAndresKlode and http://jak-linux.org/.