On Sat, 8 Sep 2007, Steve Fink wrote:
What error message are you getting?
I think it's a bug (or lack of C++ functionality) in xsubpp,
but I'm not ruling out a self-introduced problem. :)
I added this to xs/Vector3.xs :
bool
equals(lobj, robj, swap)
Vector3 * lobj
Vector3 * robj
IV swap
OVERLOAD: ==
CODE:
RETVAL = (*lobj == *robj);
OUTPUT:
RETVAL
(Note: I couldn't figure out the correct syntax
either from the documentation nor from *attempting*
to read the code for `xsubpp`.)
When I do `make`, the error is :
Ogre.c: In function 'void XS_Ogre__Animation_nil(PerlInterpreter*, CV*)':
Ogre.c:11158: error: 'ax' was not declared in this scope
Ogre.c: In function 'void boot_Ogre(PerlInterpreter*, CV*)':
Ogre.c:11180: error: cannot convert 'sv' to 'SV*' for argument '3' to 'void
Perl_sv_setsv_flags(PerlInterpreter*, SV*, SV*, I32)'
make: *** [Ogre.o] Error 1
In Ogre.c, I find :
XS(XS_Ogre__Animation_nil); /* prototype to pass -Wmissing-prototypes */
XS(XS_Ogre__Animation_nil)
{
XSRETURN_EMPTY; <--- line 11158
}
Note that it has generated OVERLOAD stuff for
the package Ogre::Animation, not Ogre::Vector3 !
Then :
XS(boot_Ogre); /* prototype to pass -Wmissing-prototypes */
XS(boot_Ogre)
{
dXSARGS;
char* file = __FILE__;
XS_VERSION_BOOTCHECK ;
{
CV * cv ;
/* register the overloading (type 'A') magic */
PL_amagic_generation++;
/* The magic for overload gets a GV* via gv_fetchmeth as */
/* mentioned above, and looks in the SV* slot of it for */
/* the "fallback" status. */
sv_setsv( <---- line 11180
get_sv( "Ogre::Animation::()", TRUE ),
PL_sv_undef
);
/* Making a sub named "Ogre::Animation::()" allows the package */
/* to be findable via fetchmethod(), and causes */
/* overload::Overloaded("Ogre::Animation") to return true. */
newXS("Ogre::Animation::()", XS_Ogre__Animation_nil, file);
cv = newXS("Ogre::TFO_NONE", XS_Ogre_TFO_NONE, file);
XSANY.any_i32 = 0 ;
sv_setpv((SV*)cv, "$") ;
Thinking that it might be due to how I use INCLUDE to drag
in the xs/*.xs files from Ogre.xs,
I put the contents of Vector3.xs into Ogre.xs.
The same error results during `make`,
but this time the class is correctly Ogre::Animation.
I also tried explicit INCLUDEs for every file,
instead of the script that currently INCLUDEs them.
I didn't try putting the content of all xs/*.xs files
into Ogre.xs in order to rule out that it's just
the fact that INCLUDE is used anywhere.
I hope it isn't necessary to put all the XS in one file..
If anything in the overloaded function is not in your typemap, the
generated C code is completely bogus (syntactically incorrect.)
It's very delicate, XS...
