[perl5.git] / vxs.inc

/* This file is part of the "version" CPAN distribution.  Please avoid
   editing it in the perl core. */

#ifdef PERL_CORE
#  define VXS_CLASS "version"
#else
#  define VXS_CLASS "version::vxs"
#endif

#ifdef VXS_XSUB_DETAILS
#  ifdef PERL_CORE
    {"UNIVERSAL::VERSION", XS_UNIVERSAL_VERSION, NULL},
#  else
    {VXS_CLASS "::_VERSION", XS_UNIVERSAL_VERSION, NULL},
#  endif
    {VXS_CLASS "::()", XS_version_noop, NULL},
    {VXS_CLASS "::new", XS_version_new, NULL},
    {VXS_CLASS "::parse", XS_version_new, NULL},
    {VXS_CLASS "::(\"\"", XS_version_stringify, NULL},
    {VXS_CLASS "::stringify", XS_version_stringify, NULL},
    {VXS_CLASS "::(0+", XS_version_numify, NULL},
    {VXS_CLASS "::numify", XS_version_numify, NULL},
    {VXS_CLASS "::normal", XS_version_normal, NULL},
    {VXS_CLASS "::(cmp", XS_version_vcmp, NULL},
    {VXS_CLASS "::(<=>", XS_version_vcmp, NULL},
#  ifdef PERL_CORE
    {VXS_CLASS "::vcmp", XS_version_vcmp, NULL},
#  else
    {VXS_CLASS "::VCMP", XS_version_vcmp, NULL},
#  endif
    {VXS_CLASS "::(bool", XS_version_boolean, NULL},
    {VXS_CLASS "::boolean", XS_version_boolean, NULL},
    {VXS_CLASS "::(+", XS_version_noop, NULL},
    {VXS_CLASS "::(-", XS_version_noop, NULL},
    {VXS_CLASS "::(*", XS_version_noop, NULL},
    {VXS_CLASS "::(/", XS_version_noop, NULL},
    {VXS_CLASS "::(+=", XS_version_noop, NULL},
    {VXS_CLASS "::(-=", XS_version_noop, NULL},
    {VXS_CLASS "::(*=", XS_version_noop, NULL},
    {VXS_CLASS "::(/=", XS_version_noop, NULL},
    {VXS_CLASS "::(abs", XS_version_noop, NULL},
    {VXS_CLASS "::(nomethod", XS_version_noop, NULL},
    {VXS_CLASS "::noop", XS_version_noop, NULL},
    {VXS_CLASS "::is_alpha", XS_version_is_alpha, NULL},
    {VXS_CLASS "::qv", XS_version_qv, NULL},
    {VXS_CLASS "::declare", XS_version_qv, NULL},
    {VXS_CLASS "::is_qv", XS_version_is_qv, NULL},
#else

XS(XS_UNIVERSAL_VERSION)
{
    dVAR;
    dXSARGS;
    HV *pkg;
    GV **gvp;
    GV *gv;
    SV *sv;
    const char *undef;
    PERL_UNUSED_ARG(cv);

    if (SvROK(ST(0))) {
        sv = MUTABLE_SV(SvRV(ST(0)));
        if (!SvOBJECT(sv))
            Perl_croak(aTHX_ "Cannot find version of an unblessed reference");
        pkg = SvSTASH(sv);
    }
    else {
        pkg = gv_stashsv(ST(0), 0);
    }

    gvp = pkg ? (GV**)hv_fetchs(pkg, "VERSION", FALSE) : NULL;

    if (gvp && isGV(gv = *gvp) && (sv = GvSV(gv)) && SvOK(sv)) {
        SV * const nsv = sv_newmortal();
        sv_setsv(nsv, sv);
        sv = nsv;
	if ( !sv_isobject(sv) || !sv_derived_from(sv, "version"))
	    upg_version(sv, FALSE);

        undef = NULL;
    }
    else {
        sv = &PL_sv_undef;
        undef = "(undef)";
    }

    if (items > 1) {
	SV *req = ST(1);

	if (undef) {
	    if (pkg) {
		const HEK * const name = HvNAME_HEK(pkg);
		Perl_croak(aTHX_
			   "%"HEKf" does not define $%"HEKf
			   "::VERSION--version check failed",
			   HEKfARG(name), HEKfARG(name));
	    } else {
		Perl_croak(aTHX_
			     "%"SVf" defines neither package nor VERSION--version check failed",
			     SVfARG(ST(0)) );
	    }
	}

	if ( !sv_isobject(req) || !sv_derived_from(req, "version")) {
	    /* req may very well be R/O, so create a new object */
	    req = sv_2mortal( new_version(req) );
	}

	if ( vcmp( req, sv ) > 0 ) {
	    if ( hv_exists(MUTABLE_HV(SvRV(req)), "qv", 2 ) ) {
		Perl_croak(aTHX_ "%"HEKf" version %"SVf" required--"
		       "this is only version %"SVf"",
                       HEKfARG(HvNAME_HEK(pkg)),
		       SVfARG(sv_2mortal(vnormal(req))),
		       SVfARG(sv_2mortal(vnormal(sv))));
	    } else {
		Perl_croak(aTHX_ "%"HEKf" version %"SVf" required--"
		       "this is only version %"SVf,
                       HEKfARG(HvNAME_HEK(pkg)),
		       SVfARG(sv_2mortal(vstringify(req))),
		       SVfARG(sv_2mortal(vstringify(sv))));
	    }
	}
    }

    if ( SvOK(sv) && sv_derived_from(sv, "version") ) {
	ST(0) = sv_2mortal(vstringify(sv));
    } else {
	ST(0) = sv;
    }

    XSRETURN(1);
}

XS(XS_version_new)
{
    dVAR;
    dXSARGS;
    if (items > 3 || items < 1)
	croak_xs_usage(cv, "class, version");
    SP -= items;
    {
        SV *vs = ST(1);
	SV *rv;
        STRLEN len;
        const char *classname;
        U32 flags;

	/* Just in case this is something like a tied hash */
	SvGETMAGIC(vs);

        if ( sv_isobject(ST(0)) ) { /* get the class if called as an object method */
            const HV * stash = SvSTASH(SvRV(ST(0)));
            classname = HvNAME(stash);
            len       = HvNAMELEN(stash);
            flags     = HvNAMEUTF8(stash) ? SVf_UTF8 : 0;
        }
        else {
	    classname = SvPV(ST(0), len);
            flags     = SvUTF8(ST(0));
        }

	if ( items == 1 || ! SvOK(vs) ) { /* no param or explicit undef */
	    /* create empty object */
	    vs = sv_newmortal();
	    sv_setpvs(vs, "0");
	}
	else if ( items == 3 ) {
	    vs = sv_newmortal();
	    Perl_sv_setpvf(aTHX_ vs,"v%s",SvPV_nolen_const(ST(2)));
	}

	rv = new_version(vs);
	if ( strnNE(classname,"version", len) ) /* inherited new() */
	    sv_bless(rv, gv_stashpvn(classname, len, GV_ADD | flags));

	mPUSHs(rv);
	PUTBACK;
	return;
    }
}

XS(XS_version_stringify)
{
     dVAR;
     dXSARGS;
     if (items < 1)
	 croak_xs_usage(cv, "lobj, ...");
     SP -= items;
     {
	  SV *	lobj = ST(0);

	  if (sv_isobject(lobj) && sv_derived_from(lobj, "version")) {
	       lobj = SvRV(lobj);
	  }
	  else
	       Perl_croak(aTHX_ "lobj is not of type version");

	  mPUSHs(vstringify(lobj));

	  PUTBACK;
	  return;
     }
}

XS(XS_version_numify)
{
     dVAR;
     dXSARGS;
     if (items < 1)
	 croak_xs_usage(cv, "lobj, ...");
     SP -= items;
     {
	  SV *	lobj = ST(0);

	  if (sv_isobject(lobj) && sv_derived_from(lobj, "version")) {
	       lobj = SvRV(lobj);
	  }
	  else
	       Perl_croak(aTHX_ "lobj is not of type version");

	  mPUSHs(vnumify(lobj));

	  PUTBACK;
	  return;
     }
}

XS(XS_version_normal)
{
     dVAR;
     dXSARGS;
     if (items < 1)
	 croak_xs_usage(cv, "lobj, ...");
     SP -= items;
     {
	  SV *	lobj = ST(0);

	  if (sv_isobject(lobj) && sv_derived_from(lobj, "version")) {
	       lobj = SvRV(lobj);
	  }
	  else
	       Perl_croak(aTHX_ "lobj is not of type version");

	  mPUSHs(vnormal(lobj));

	  PUTBACK;
	  return;
     }
}

XS(XS_version_vcmp)
{
     dVAR;
     dXSARGS;
     if (items < 1)
	 croak_xs_usage(cv, "lobj, ...");
     SP -= items;
     {
	  SV *	lobj = ST(0);

	  if (sv_isobject(lobj) && sv_derived_from(lobj, "version")) {
	       lobj = SvRV(lobj);
	  }
	  else
	       Perl_croak(aTHX_ "lobj is not of type version");

	  {
	       SV	*rs;
	       SV	*rvs;
	       SV * robj = ST(1);
	       const IV	 swap = (IV)SvIV(ST(2));

	       if ( !sv_isobject(robj) || !sv_derived_from(robj, "version") )
	       {
		    robj = new_version(SvOK(robj) ? robj : newSVpvs_flags("0", SVs_TEMP));
		    sv_2mortal(robj);
	       }
	       rvs = SvRV(robj);

	       if ( swap )
	       {
		    rs = newSViv(vcmp(rvs,lobj));
	       }
	       else
	       {
		    rs = newSViv(vcmp(lobj,rvs));
	       }

	       mPUSHs(rs);
	  }

	  PUTBACK;
	  return;
     }
}

XS(XS_version_boolean)
{
    dVAR;
    dXSARGS;
    if (items < 1)
	croak_xs_usage(cv, "lobj, ...");
    SP -= items;
    if (sv_isobject(ST(0)) && sv_derived_from(ST(0), "version")) {
	SV * const lobj = SvRV(ST(0));
	SV * const rs =
	    newSViv( vcmp(lobj,
			  sv_2mortal(new_version(
					sv_2mortal(newSVpvs("0"))
				    ))
			 )
		   );
	mPUSHs(rs);
	PUTBACK;
	return;
    }
    else
	Perl_croak(aTHX_ "lobj is not of type version");
}

XS(XS_version_noop)
{
    dVAR;
    dXSARGS;
    if (items < 1)
	croak_xs_usage(cv, "lobj, ...");
    if (sv_isobject(ST(0)) && sv_derived_from(ST(0), "version"))
	Perl_croak(aTHX_ "operation not supported with version object");
    else
	Perl_croak(aTHX_ "lobj is not of type version");
#ifndef HASATTRIBUTE_NORETURN
    XSRETURN_EMPTY;
#endif
}

XS(XS_version_is_alpha)
{
    dVAR;
    dXSARGS;
    if (items != 1)
	croak_xs_usage(cv, "lobj");
    SP -= items;
    if (sv_isobject(ST(0)) && sv_derived_from(ST(0), "version")) {
	SV * const lobj = ST(0);
	if ( hv_exists(MUTABLE_HV(SvRV(lobj)), "alpha", 5 ) )
	    XSRETURN_YES;
	else
	    XSRETURN_NO;
	PUTBACK;
	return;
    }
    else
	Perl_croak(aTHX_ "lobj is not of type version");
}

XS(XS_version_qv)
{
    dVAR;
    dXSARGS;
    PERL_UNUSED_ARG(cv);
    SP -= items;
    {
	SV * ver = ST(0);
	SV * rv;
        STRLEN len = 0;
        const char * classname = "";
        U32 flags = 0;
        if ( items == 2 ) {
	    SvGETMAGIC(ST(1));
	    if (SvOK(ST(1))) {
		ver = ST(1);
	    }
	    else {
		Perl_croak(aTHX_ "Invalid version format (version required)");
	    }
            if ( sv_isobject(ST(0)) ) { /* class called as an object method */
                const HV * stash = SvSTASH(SvRV(ST(0)));
                classname = HvNAME(stash);
                len       = HvNAMELEN(stash);
                flags     = HvNAMEUTF8(stash) ? SVf_UTF8 : 0;
            }
            else {
	       classname = SvPV(ST(0), len);
                flags     = SvUTF8(ST(0));
            }
        }
	if ( !SvVOK(ver) ) { /* not already a v-string */
	    rv = sv_newmortal();
	    sv_setsv(rv,ver); /* make a duplicate */
	    upg_version(rv, TRUE);
	} else {
	    rv = sv_2mortal(new_version(ver));
	}
	if ( items == 2
                && strnNE(classname,"version", len) ) { /* inherited new() */
	    sv_bless(rv, gv_stashpvn(classname, len, GV_ADD | flags));
        }
	PUSHs(rv);
    }
    PUTBACK;
    return;
}

XS(XS_version_is_qv)
{
    dVAR;
    dXSARGS;
    if (items != 1)
	croak_xs_usage(cv, "lobj");
    SP -= items;
    if (sv_isobject(ST(0)) && sv_derived_from(ST(0), "version")) {
	SV * const lobj = ST(0);
	if ( hv_exists(MUTABLE_HV(SvRV(lobj)), "qv", 2 ) )
	    XSRETURN_YES;
	else
	    XSRETURN_NO;
	PUTBACK;
	return;
    }
    else
	Perl_croak(aTHX_ "lobj is not of type version");
}

#endif
Commit	Line	Data
abc6d738 FC	1	/* This file is part of the "version" CPAN distribution. Please avoid
	2	editing it in the perl core. */
	3
b42aaea1 FC	4	#ifdef PERL_CORE
	5	# define VXS_CLASS "version"
	6	#else
	7	# define VXS_CLASS "version::vxs"
	8	#endif
	9
abc6d738	10	#ifdef VXS_XSUB_DETAILS
b42aaea1	11	# ifdef PERL_CORE
abc6d738	12	{"UNIVERSAL::VERSION", XS_UNIVERSAL_VERSION, NULL},
b42aaea1 FC	13	# else
	14	{VXS_CLASS "::_VERSION", XS_UNIVERSAL_VERSION, NULL},
	15	# endif
	16	{VXS_CLASS "::()", XS_version_noop, NULL},
	17	{VXS_CLASS "::new", XS_version_new, NULL},
	18	{VXS_CLASS "::parse", XS_version_new, NULL},
	19	{VXS_CLASS "::(\"\"", XS_version_stringify, NULL},
	20	{VXS_CLASS "::stringify", XS_version_stringify, NULL},
	21	{VXS_CLASS "::(0+", XS_version_numify, NULL},
	22	{VXS_CLASS "::numify", XS_version_numify, NULL},
	23	{VXS_CLASS "::normal", XS_version_normal, NULL},
	24	{VXS_CLASS "::(cmp", XS_version_vcmp, NULL},
	25	{VXS_CLASS "::(<=>", XS_version_vcmp, NULL},
	26	# ifdef PERL_CORE
	27	{VXS_CLASS "::vcmp", XS_version_vcmp, NULL},
	28	# else
	29	{VXS_CLASS "::VCMP", XS_version_vcmp, NULL},
	30	# endif
	31	{VXS_CLASS "::(bool", XS_version_boolean, NULL},
	32	{VXS_CLASS "::boolean", XS_version_boolean, NULL},
	33	{VXS_CLASS "::(+", XS_version_noop, NULL},
	34	{VXS_CLASS "::(-", XS_version_noop, NULL},
	35	{VXS_CLASS "::(*", XS_version_noop, NULL},
	36	{VXS_CLASS "::(/", XS_version_noop, NULL},
	37	{VXS_CLASS "::(+=", XS_version_noop, NULL},
	38	{VXS_CLASS "::(-=", XS_version_noop, NULL},
	39	{VXS_CLASS "::(*=", XS_version_noop, NULL},
	40	{VXS_CLASS "::(/=", XS_version_noop, NULL},
	41	{VXS_CLASS "::(abs", XS_version_noop, NULL},
	42	{VXS_CLASS "::(nomethod", XS_version_noop, NULL},
	43	{VXS_CLASS "::noop", XS_version_noop, NULL},
	44	{VXS_CLASS "::is_alpha", XS_version_is_alpha, NULL},
	45	{VXS_CLASS "::qv", XS_version_qv, NULL},
	46	{VXS_CLASS "::declare", XS_version_qv, NULL},
	47	{VXS_CLASS "::is_qv", XS_version_is_qv, NULL},
abc6d738 FC	48	#else
	49
	50	XS(XS_UNIVERSAL_VERSION)
	51	{
	52	dVAR;
	53	dXSARGS;
	54	HV *pkg;
	55	GV **gvp;
	56	GV *gv;
	57	SV *sv;
	58	const char *undef;
	59	PERL_UNUSED_ARG(cv);
	60
	61	if (SvROK(ST(0))) {
	62	sv = MUTABLE_SV(SvRV(ST(0)));
	63	if (!SvOBJECT(sv))
	64	Perl_croak(aTHX_ "Cannot find version of an unblessed reference");
	65	pkg = SvSTASH(sv);
	66	}
	67	else {
	68	pkg = gv_stashsv(ST(0), 0);
	69	}
	70
	71	gvp = pkg ? (GV**)hv_fetchs(pkg, "VERSION", FALSE) : NULL;
	72
	73	if (gvp && isGV(gv = *gvp) && (sv = GvSV(gv)) && SvOK(sv)) {
	74	SV * const nsv = sv_newmortal();
	75	sv_setsv(nsv, sv);
	76	sv = nsv;
	77	if ( !sv_isobject(sv) \|\| !sv_derived_from(sv, "version"))
	78	upg_version(sv, FALSE);
	79
	80	undef = NULL;
	81	}
	82	else {
	83	sv = &PL_sv_undef;
	84	undef = "(undef)";
	85	}
	86
	87	if (items > 1) {
	88	SV *req = ST(1);
	89
	90	if (undef) {
	91	if (pkg) {
	92	const HEK * const name = HvNAME_HEK(pkg);
	93	Perl_croak(aTHX_
	94	"%"HEKf" does not define $%"HEKf
	95	"::VERSION--version check failed",
	96	HEKfARG(name), HEKfARG(name));
	97	} else {
	98	Perl_croak(aTHX_
	99	"%"SVf" defines neither package nor VERSION--version check failed",
	100	SVfARG(ST(0)) );
	101	}
	102	}
	103
	104	if ( !sv_isobject(req) \|\| !sv_derived_from(req, "version")) {
	105	/* req may very well be R/O, so create a new object */
	106	req = sv_2mortal( new_version(req) );
	107	}
	108
	109	if ( vcmp( req, sv ) > 0 ) {
	110	if ( hv_exists(MUTABLE_HV(SvRV(req)), "qv", 2 ) ) {
	111	Perl_croak(aTHX_ "%"HEKf" version %"SVf" required--"
112	"this is only version %"SVf"",
113	HEKfARG(HvNAME_HEK(pkg)),
114	SVfARG(sv_2mortal(vnormal(req))),
115	SVfARG(sv_2mortal(vnormal(sv))));
116	} else {
117	Perl_croak(aTHX_ "%"HEKf" version %"SVf" required--"
118	"this is only version %"SVf,
119	HEKfARG(HvNAME_HEK(pkg)),
120	SVfARG(sv_2mortal(vstringify(req))),
121	SVfARG(sv_2mortal(vstringify(sv))));
122	}
123	}
124	}
125
126	if ( SvOK(sv) && sv_derived_from(sv, "version") ) {
127	ST(0) = sv_2mortal(vstringify(sv));
128	} else {
129	ST(0) = sv;
130	}
131
132	XSRETURN(1);
133	}
134
135	XS(XS_version_new)
136	{
137	dVAR;
138	dXSARGS;
139	if (items > 3 \|\| items < 1)
140	croak_xs_usage(cv, "class, version");
141	SP -= items;
142	{
143	SV *vs = ST(1);
144	SV *rv;
145	STRLEN len;
146	const char *classname;
147	U32 flags;
148
149	/* Just in case this is something like a tied hash */
150	SvGETMAGIC(vs);
151
152	if ( sv_isobject(ST(0)) ) { /* get the class if called as an object method */
153	const HV * stash = SvSTASH(SvRV(ST(0)));
154	classname = HvNAME(stash);
155	len = HvNAMELEN(stash);
156	flags = HvNAMEUTF8(stash) ? SVf_UTF8 : 0;
157	}
158	else {
159	classname = SvPV(ST(0), len);
160	flags = SvUTF8(ST(0));
161	}
162
163	if ( items == 1 \|\| ! SvOK(vs) ) { /* no param or explicit undef */
164	/* create empty object */
165	vs = sv_newmortal();
166	sv_setpvs(vs, "0");
167	}
168	else if ( items == 3 ) {
169	vs = sv_newmortal();
170	Perl_sv_setpvf(aTHX_ vs,"v%s",SvPV_nolen_const(ST(2)));
171	}
172
173	rv = new_version(vs);
174	if ( strnNE(classname,"version", len) ) /* inherited new() */
175	sv_bless(rv, gv_stashpvn(classname, len, GV_ADD \| flags));
176
177	mPUSHs(rv);
178	PUTBACK;
179	return;
180	}
181	}
182
183	XS(XS_version_stringify)
184	{
185	dVAR;
186	dXSARGS;
187	if (items < 1)
188	croak_xs_usage(cv, "lobj, ...");
189	SP -= items;
190	{
191	SV * lobj = ST(0);
192
193	if (sv_isobject(lobj) && sv_derived_from(lobj, "version")) {
194	lobj = SvRV(lobj);
195	}
196	else
197	Perl_croak(aTHX_ "lobj is not of type version");
198
199	mPUSHs(vstringify(lobj));
200
201	PUTBACK;
202	return;
203	}
204	}
205
206	XS(XS_version_numify)
207	{
208	dVAR;
209	dXSARGS;
210	if (items < 1)
211	croak_xs_usage(cv, "lobj, ...");
212	SP -= items;
213	{
214	SV * lobj = ST(0);
215
216	if (sv_isobject(lobj) && sv_derived_from(lobj, "version")) {
217	lobj = SvRV(lobj);
218	}
219	else
220	Perl_croak(aTHX_ "lobj is not of type version");
221
222	mPUSHs(vnumify(lobj));
223
224	PUTBACK;
225	return;
226	}
227	}
228
229	XS(XS_version_normal)
230	{
231	dVAR;
232	dXSARGS;
233	if (items < 1)
234	croak_xs_usage(cv, "lobj, ...");
235	SP -= items;
236	{
237	SV * lobj = ST(0);
238
239	if (sv_isobject(lobj) && sv_derived_from(lobj, "version")) {
240	lobj = SvRV(lobj);
241	}
242	else
243	Perl_croak(aTHX_ "lobj is not of type version");
244
245	mPUSHs(vnormal(lobj));
246
247	PUTBACK;
248	return;
249	}
250	}
251
252	XS(XS_version_vcmp)
253	{
254	dVAR;
255	dXSARGS;
256	if (items < 1)
257	croak_xs_usage(cv, "lobj, ...");
258	SP -= items;
259	{
260	SV * lobj = ST(0);
261
262	if (sv_isobject(lobj) && sv_derived_from(lobj, "version")) {
263	lobj = SvRV(lobj);
264	}
265	else
266	Perl_croak(aTHX_ "lobj is not of type version");
267
268	{
269	SV *rs;
270	SV *rvs;
271	SV * robj = ST(1);
272	const IV swap = (IV)SvIV(ST(2));
273
274	if ( !sv_isobject(robj) \|\| !sv_derived_from(robj, "version") )
275	{
276	robj = new_version(SvOK(robj) ? robj : newSVpvs_flags("0", SVs_TEMP));
277	sv_2mortal(robj);
278	}
279	rvs = SvRV(robj);
280
281	if ( swap )
282	{
283	rs = newSViv(vcmp(rvs,lobj));
284	}
285	else
286	{
287	rs = newSViv(vcmp(lobj,rvs));
288	}
289
290	mPUSHs(rs);
291	}
292
293	PUTBACK;
294	return;
295	}
296	}
297
298	XS(XS_version_boolean)
299	{
300	dVAR;
301	dXSARGS;
302	if (items < 1)
303	croak_xs_usage(cv, "lobj, ...");
304	SP -= items;
305	if (sv_isobject(ST(0)) && sv_derived_from(ST(0), "version")) {
306	SV * const lobj = SvRV(ST(0));
307	SV * const rs =
308	newSViv( vcmp(lobj,
309	sv_2mortal(new_version(
310	sv_2mortal(newSVpvs("0"))
311	))
312	)
313	);
314	mPUSHs(rs);
315	PUTBACK;
316	return;
317	}
318	else
319	Perl_croak(aTHX_ "lobj is not of type version");
320	}
321
322	XS(XS_version_noop)
323	{
324	dVAR;
325	dXSARGS;
326	if (items < 1)
327	croak_xs_usage(cv, "lobj, ...");
328	if (sv_isobject(ST(0)) && sv_derived_from(ST(0), "version"))
329	Perl_croak(aTHX_ "operation not supported with version object");
330	else
331	Perl_croak(aTHX_ "lobj is not of type version");
332	#ifndef HASATTRIBUTE_NORETURN
333	XSRETURN_EMPTY;
334	#endif
335	}
336
337	XS(XS_version_is_alpha)
338	{
339	dVAR;
340	dXSARGS;
341	if (items != 1)
342	croak_xs_usage(cv, "lobj");
343	SP -= items;
344	if (sv_isobject(ST(0)) && sv_derived_from(ST(0), "version")) {
345	SV * const lobj = ST(0);
346	if ( hv_exists(MUTABLE_HV(SvRV(lobj)), "alpha", 5 ) )
347	XSRETURN_YES;
348	else
349	XSRETURN_NO;
350	PUTBACK;
351	return;
352	}
353	else
354	Perl_croak(aTHX_ "lobj is not of type version");
355	}
356
357	XS(XS_version_qv)
358	{
359	dVAR;
360	dXSARGS;
361	PERL_UNUSED_ARG(cv);
362	SP -= items;
363	{
364	SV * ver = ST(0);
365	SV * rv;
366	STRLEN len = 0;
367	const char * classname = "";
368	U32 flags = 0;
369	if ( items == 2 ) {
370	SvGETMAGIC(ST(1));
371	if (SvOK(ST(1))) {
372	ver = ST(1);
373	}
374	else {
375	Perl_croak(aTHX_ "Invalid version format (version required)");
376	}
377	if ( sv_isobject(ST(0)) ) { /* class called as an object method */
378	const HV * stash = SvSTASH(SvRV(ST(0)));
379	classname = HvNAME(stash);
380	len = HvNAMELEN(stash);
381	flags = HvNAMEUTF8(stash) ? SVf_UTF8 : 0;
382	}
383	else {
384	classname = SvPV(ST(0), len);
385	flags = SvUTF8(ST(0));
386	}
387	}
388	if ( !SvVOK(ver) ) { /* not already a v-string */
389	rv = sv_newmortal();
390	sv_setsv(rv,ver); /* make a duplicate */
391	upg_version(rv, TRUE);
392	} else {
393	rv = sv_2mortal(new_version(ver));
394	}
395	if ( items == 2
396	&& strnNE(classname,"version", len) ) { /* inherited new() */
397	sv_bless(rv, gv_stashpvn(classname, len, GV_ADD \| flags));
398	}
399	PUSHs(rv);
400	}
401	PUTBACK;
402	return;
403	}
404
405	XS(XS_version_is_qv)
406	{
407	dVAR;
408	dXSARGS;
409	if (items != 1)
410	croak_xs_usage(cv, "lobj");
411	SP -= items;
412	if (sv_isobject(ST(0)) && sv_derived_from(ST(0), "version")) {
413	SV * const lobj = ST(0);
414	if ( hv_exists(MUTABLE_HV(SvRV(lobj)), "qv", 2 ) )
415	XSRETURN_YES;
416	else
417	XSRETURN_NO;
418	PUTBACK;
419	return;
420	}
421	else
422	Perl_croak(aTHX_ "lobj is not of type version");
423	}
424
425	#endif