Re: [Vala] translating union in vapi file

["Clément DAVID" <c david86 gmail com>]

Hi everyone,

I answer to myself (after some times writing tests). I think it can be useful for others VAPI writers.

The solution to 'union' is exactly the same as 'struct'.

[CCode (free_function="mpd_freeInfoEntity")]
    public class InfoEntity  {
        public int type;
        public InfoEntityInfo info;
       
        [CCode (cname="mpd_newInfoEntity")]
        public InfoEntity ();
    }
   
    public struct InfoEntityInfo  {
        public Directory directory;
        public Song song;
        public PlaylistFile playlistFile;
    }

2008/2/21, Clément DAVID <c david86 gmail com>:

Hi,

I'm in trouble while translating non-Object library which this kind of structure :

typedef struct mpd_InfoEntity {
    /* the type of entity, use with MPD_INFO_ENTITY_TYPE_* to determine
     * what this entity is (song, directory, etc...)
     */
    int type;
    /* the actual data you want, mpd_Song, mpd_Directory, etc */
    union {
        mpd_Directory * directory;
        mpd_Song * song;
        mpd_PlaylistFile * playlistFile;
    } info;
} mpd_InfoEntity;

I don't know the way to handle that.
May  Directory, Song, PlaylistFile classes must inherit from the Boxed class ?

[Joined files]
libmpdclient.h : the library H file
mpd.vapi  : The current translation vapi file.