TYPEMAP
TextMeCab*              T_MECAB
TextMeCab_Node*         T_MECAB_NODE
TextMeCab_Node_Cloned * T_MECAB_NODE_CLONE

INPUT
T_MECAB
    {
        MAGIC *mg;
        $var = NULL;
        mg = TextMeCab_mg_find(aTHX_ SvRV($arg), &TextMeCab_vtbl);
        if (mg) {
            $var = (TextMeCab *) mg->mg_ptr;
        }
    }

T_MECAB_NODE
        $var = XS_STATE(TextMeCab_Node *, $arg);

T_MECAB_NODE_CLONE
        $var = XS_STATE(TextMeCab_Node_Cloned *, $arg);

OUTPUT
T_MECAB
        if (!$var)          /* if null */
            SvOK_off($arg); /* then return as undef instead of reaf to undef */
        else {
            /* setup $arg as a ref to a blessed hash hv */
            MAGIC *mg;
            HV *hv = newHV();
            const char *classname = \"Text::MeCab\";
            /* take (sub)class name to use from class_sv if appropriate */
            if (class_sv && SvOK(class_sv) && sv_derived_from(class_sv, classname))
                classname = (SvROK(class_sv)) ? HvNAME(SvSTASH(class_sv)) : SvPV_nolen(class_sv);
            sv_setsv($arg, sv_2mortal(newRV_noinc((SV*)hv)));
            (void)sv_bless($arg, gv_stashpv(classname, TRUE));

            /* now attach $var to the HV */
            /* done as two steps to avoid sv_magic SvREFCNT_inc and MGf_REFCOUNTED */
            /* sv_magic((SV*)hv, NULL, '~', NULL, 0);*/
            /* PKETAMA_STATE_FROM_SV($arg) = (void *) $var; */
            mg = sv_magicext((SV*)hv, NULL, PERL_MAGIC_ext, &TextMeCab_vtbl, (char*) $var, 0); /* sizeof($var));  */
            mg->mg_flags |= MGf_DUP;
        }

T_MECAB_NODE
        XS_STRUCT2OBJ($arg, "Text::MeCab::Node", $var);

T_MECAB_NODE_CLONE
        XS_STRUCT2OBJ($arg, "Text::MeCab::Node::Cloned", $var);