Re: [Swig-user] SWIG and Lua: typemap for array

[Ervin H. <ai...@gm...>]

Hí William,

Thanks - I've checked that, but there aren't typemap  for scalar array.


Regards,

a.

On Sunday, October 23, 2016, William S Fulton <ws...@fu...>
wrote:

> On 23 October 2016 at 20:30, Ervin Hegedüs <ai...@gm...
> <javascript:;>> wrote:
> > Hi William,
> >
> > thanks for the answer,
> >
> > On Sun, Oct 23, 2016 at 08:15:28PM +0100, William S Fulton wrote:
> >> On 22 October 2016 at 18:43, Ervin Hegedüs <ai...@gm...
> <javascript:;>> wrote:
> >> > I'm trying this way:
> >> >
> >> > %typemap(out) int [ANY] {
> >> >   int len,i;
> >> >   len = $1_dim0;
> >> >   lua_createtable (L, len, 0);
> >> >   for(i=0; i<len; i++) {
> >> >     lua_pushinteger(L, (lua_Integer)$1[i]);
> >> >   }
> >> >   lua_settable(L, (-1)*(len+1));
> >> > }
> >> >
> >> > but in Lua script shows only this:
> >> >
> >> > nil
> >> >
> >> > What'em I missing? Could anybody helps in this problem?
> >>
> >>
> >> Have you looked at the Lua typemaps shipped with SWIG? I don't know
> >> Lua, but all the "out" typemaps increment SWIG_arg, so I'd try adding
> >> that in.
> >
> > do you mean should I return the SWIG_arg from that typemap?
> >
> > I've tested, but it doesn't work: the array in Lua is still "nil"
> > value, the expected value is "table: 0xaddr", when I just
> > reference that in a print() function.
> >
> The reference typemaps I suggested you look at are in the Lib
> directory in the SWIG distribution tarball.
>
> William
>