TYPEMAP
const char*               T_PV
boolean                   T_IV
xmlChar*                  T_PV
swish_Config*             O_OBJECT
xmlHashTablePtr           O_OBJECT
swish_ParserData*         O_OBJECT
xmlBufferPtr              T_IV
swish_TokenIterator*      O_OBJECT
swish_Token*              O_OBJECT
swish_DocInfo*            O_OBJECT
swish_Analyzer*           O_OBJECT
swish_Parser*             O_OBJECT
swish_NamedBuffer*        O_OBJECT
swish_3*                  O_OBJECT
swish_Property*           O_OBJECT
swish_MetaName*           O_OBJECT


# see http://www.mail-archive.com/perl-xs@perl.org/msg01880.html
INPUT
O_OBJECT
    if( sv_isobject($arg) && (SvTYPE(SvRV($arg)) == SVt_PVMG) )
            $var = INT2PTR ($type, SvIV (SvRV ($arg)));
    else{
            warn( \"${Package}::$func_name() -- $var is not a blessed SV reference\" );
            XSRETURN_UNDEF;
    }

OUTPUT

# The Perl object is blessed into 'CLASS', which should be a
# char* having the name of the package for the blessing.
O_OBJECT
        sv_setref_pv( $arg, (char*)CLASS, (void*)$var );