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add sv_reftype_len() and make sv_reftype() be a wrapper for it
[perl5.git] / universal.c
CommitLineData
d6376244
JH
1/* universal.c
2 *
b5f8cc5c 3 * Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
1129b882 4 * 2005, 2006, 2007, 2008 by Larry Wall and others
d6376244
JH
5 *
6 * You may distribute under the terms of either the GNU General Public
7 * License or the Artistic License, as specified in the README file.
8 *
9 */
10
d31a8517 11/*
4ac71550
TC
12 * '"The roots of those mountains must be roots indeed; there must be
13 * great secrets buried there which have not been discovered since the
14 * beginning."' --Gandalf, relating Gollum's history
15 *
16 * [p.54 of _The Lord of the Rings_, I/ii: "The Shadow of the Past"]
d31a8517
AT
17 */
18
166f8a29
DM
19/* This file contains the code that implements the functions in Perl's
20 * UNIVERSAL package, such as UNIVERSAL->can().
192b9cd1
AB
21 *
22 * It is also used to store XS functions that need to be present in
23 * miniperl for a lack of a better place to put them. It might be
24 * clever to move them to seperate XS files which would then be pulled
25 * in by some to-be-written build process.
166f8a29
DM
26 */
27
6d4a7be2 28#include "EXTERN.h"
864dbfa3 29#define PERL_IN_UNIVERSAL_C
6d4a7be2 30#include "perl.h"
6d4a7be2 31
39f7a870
JH
32#ifdef USE_PERLIO
33#include "perliol.h" /* For the PERLIO_F_XXX */
34#endif
35
aea32303
NC
36static HV *
37S_get_isa_hash(pTHX_ HV *const stash)
00bf72ff
NC
38{
39 dVAR;
40 struct mro_meta *const meta = HvMROMETA(stash);
41
42 PERL_ARGS_ASSERT_GET_ISA_HASH;
43
44 if (!meta->isa) {
45 AV *const isa = mro_get_linear_isa(stash);
46 if (!meta->isa) {
47 HV *const isa_hash = newHV();
48 /* Linearisation didn't build it for us, so do it here. */
49 SV *const *svp = AvARRAY(isa);
50 SV *const *const svp_end = svp + AvFILLp(isa) + 1;
51 const HEK *const canon_name = HvNAME_HEK(stash);
52
53 while (svp < svp_end) {
54 (void) hv_store_ent(isa_hash, *svp++, &PL_sv_undef, 0);
55 }
56
57 (void) hv_common(isa_hash, NULL, HEK_KEY(canon_name),
58 HEK_LEN(canon_name), HEK_FLAGS(canon_name),
59 HV_FETCH_ISSTORE, &PL_sv_undef,
60 HEK_HASH(canon_name));
61 (void) hv_store(isa_hash, "UNIVERSAL", 9, &PL_sv_undef, 0);
62
63 SvREADONLY_on(isa_hash);
64
65 meta->isa = isa_hash;
66 }
67 }
68 return meta->isa;
69}
70
6d4a7be2 71/*
72 * Contributed by Graham Barr <Graham.Barr@tiuk.ti.com>
73 * The main guts of traverse_isa was actually copied from gv_fetchmeth
74 */
75
a9ec700e 76STATIC bool
515a4f72 77S_isa_lookup(pTHX_ HV *stash, const char * const name)
6d4a7be2 78{
97aff369 79 dVAR;
a49ba3fc 80 const struct mro_meta *const meta = HvMROMETA(stash);
aea32303 81 HV *const isa = meta->isa ? meta->isa : S_get_isa_hash(aTHX_ stash);
a49ba3fc
NC
82 STRLEN len = strlen(name);
83 const HV *our_stash;
6d4a7be2 84
7918f24d
NC
85 PERL_ARGS_ASSERT_ISA_LOOKUP;
86
a49ba3fc
NC
87 if (hv_common(isa, NULL, name, len, 0 /* No "UTF-8" flag possible with only
88 a char * argument*/,
89 HV_FETCH_ISEXISTS, NULL, 0)) {
90 /* Direct name lookup worked. */
a9ec700e 91 return TRUE;
a49ba3fc 92 }
6d4a7be2 93
a49ba3fc
NC
94 /* A stash/class can go by many names (ie. User == main::User), so
95 we use the name in the stash itself, which is canonical. */
96 our_stash = gv_stashpvn(name, len, 0);
97
98 if (our_stash) {
99 HEK *const canon_name = HvNAME_HEK(our_stash);
a1d407e8 100
a49ba3fc
NC
101 if (hv_common(isa, NULL, HEK_KEY(canon_name), HEK_LEN(canon_name),
102 HEK_FLAGS(canon_name),
103 HV_FETCH_ISEXISTS, NULL, HEK_HASH(canon_name))) {
e1a479c5 104 return TRUE;
a49ba3fc 105 }
6d4a7be2 106 }
107
a9ec700e 108 return FALSE;
6d4a7be2 109}
110
954c1994 111/*
ccfc67b7
JH
112=head1 SV Manipulation Functions
113
954c1994
GS
114=for apidoc sv_derived_from
115
6885da0e 116Returns a boolean indicating whether the SV is derived from the specified class
117I<at the C level>. To check derivation at the Perl level, call C<isa()> as a
118normal Perl method.
954c1994
GS
119
120=cut
121*/
122
55497cff 123bool
15f169a1 124Perl_sv_derived_from(pTHX_ SV *sv, const char *const name)
55497cff 125{
97aff369 126 dVAR;
0b6f4f5c 127 HV *stash;
46e4b22b 128
7918f24d
NC
129 PERL_ARGS_ASSERT_SV_DERIVED_FROM;
130
5b295bef 131 SvGETMAGIC(sv);
55497cff 132
133 if (SvROK(sv)) {
0b6f4f5c 134 const char *type;
55497cff 135 sv = SvRV(sv);
136 type = sv_reftype(sv,0);
0b6f4f5c
AL
137 if (type && strEQ(type,name))
138 return TRUE;
139 stash = SvOBJECT(sv) ? SvSTASH(sv) : NULL;
55497cff 140 }
141 else {
da51bb9b 142 stash = gv_stashsv(sv, 0);
55497cff 143 }
46e4b22b 144
4a9e32d8 145 return stash ? isa_lookup(stash, name) : FALSE;
55497cff 146}
147
cbc021f9 148/*
149=for apidoc sv_does
150
151Returns a boolean indicating whether the SV performs a specific, named role.
152The SV can be a Perl object or the name of a Perl class.
153
154=cut
155*/
156
1b026014
NIS
157#include "XSUB.h"
158
cbc021f9 159bool
15f169a1 160Perl_sv_does(pTHX_ SV *sv, const char *const name)
cbc021f9 161{
162 const char *classname;
163 bool does_it;
59e7186f 164 SV *methodname;
cbc021f9 165 dSP;
7918f24d
NC
166
167 PERL_ARGS_ASSERT_SV_DOES;
168
cbc021f9 169 ENTER;
170 SAVETMPS;
171
172 SvGETMAGIC(sv);
173
174 if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv))
7ce46f2a
GG
175 || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) {
176 LEAVE;
cbc021f9 177 return FALSE;
7ce46f2a 178 }
cbc021f9 179
180 if (sv_isobject(sv)) {
181 classname = sv_reftype(SvRV(sv),TRUE);
182 } else {
94707740 183 classname = SvPV_nolen(sv);
cbc021f9 184 }
185
7ce46f2a
GG
186 if (strEQ(name,classname)) {
187 LEAVE;
cbc021f9 188 return TRUE;
7ce46f2a 189 }
cbc021f9 190
191 PUSHMARK(SP);
192 XPUSHs(sv);
6e449a3a 193 mXPUSHs(newSVpv(name, 0));
cbc021f9 194 PUTBACK;
195
84bafc02 196 methodname = newSVpvs_flags("isa", SVs_TEMP);
59e7186f
RGS
197 /* ugly hack: use the SvSCREAM flag so S_method_common
198 * can figure out we're calling DOES() and not isa(),
199 * and report eventual errors correctly. --rgs */
200 SvSCREAM_on(methodname);
201 call_sv(methodname, G_SCALAR | G_METHOD);
cbc021f9 202 SPAGAIN;
203
204 does_it = SvTRUE( TOPs );
205 FREETMPS;
206 LEAVE;
207
208 return does_it;
209}
210
afa74d42
NC
211/*
212=for apidoc croak_xs_usage
213
214A specialised variant of C<croak()> for emitting the usage message for xsubs
215
216 croak_xs_usage(cv, "eee_yow");
217
218works out the package name and subroutine name from C<cv>, and then calls
219C<croak()>. Hence if C<cv> is C<&ouch::awk>, it would call C<croak> as:
220
1b1ee2ef 221 Perl_croak(aTHX_ "Usage: %s::%s(%s)", "ouch" "awk", "eee_yow");
afa74d42
NC
222
223=cut
224*/
225
226void
227Perl_croak_xs_usage(pTHX_ const CV *const cv, const char *const params)
228{
229 const GV *const gv = CvGV(cv);
230
231 PERL_ARGS_ASSERT_CROAK_XS_USAGE;
232
233 if (gv) {
234 const char *const gvname = GvNAME(gv);
235 const HV *const stash = GvSTASH(gv);
236 const char *const hvname = stash ? HvNAME_get(stash) : NULL;
237
238 if (hvname)
239 Perl_croak(aTHX_ "Usage: %s::%s(%s)", hvname, gvname, params);
240 else
241 Perl_croak(aTHX_ "Usage: %s(%s)", gvname, params);
242 } else {
243 /* Pants. I don't think that it should be possible to get here. */
93c51217 244 Perl_croak(aTHX_ "Usage: CODE(0x%"UVxf")(%s)", PTR2UV(cv), params);
afa74d42
NC
245 }
246}
55497cff 247
6d4a7be2 248XS(XS_UNIVERSAL_isa)
249{
97aff369 250 dVAR;
6d4a7be2 251 dXSARGS;
6d4a7be2 252
253 if (items != 2)
afa74d42 254 croak_xs_usage(cv, "reference, kind");
c4420975
AL
255 else {
256 SV * const sv = ST(0);
257 const char *name;
6d4a7be2 258
c4420975 259 SvGETMAGIC(sv);
d3f7f2b2 260
c4420975
AL
261 if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv))
262 || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv))))
263 XSRETURN_UNDEF;
f8f70380 264
c4420975 265 name = SvPV_nolen_const(ST(1));
6d4a7be2 266
c4420975
AL
267 ST(0) = boolSV(sv_derived_from(sv, name));
268 XSRETURN(1);
269 }
6d4a7be2 270}
271
6d4a7be2 272XS(XS_UNIVERSAL_can)
273{
97aff369 274 dVAR;
6d4a7be2 275 dXSARGS;
276 SV *sv;
6867be6d 277 const char *name;
6d4a7be2 278 SV *rv;
6f08146e 279 HV *pkg = NULL;
6d4a7be2 280
281 if (items != 2)
afa74d42 282 croak_xs_usage(cv, "object-ref, method");
6d4a7be2 283
284 sv = ST(0);
f8f70380 285
5b295bef 286 SvGETMAGIC(sv);
d3f7f2b2 287
253ecd6d
RGS
288 if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv))
289 || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv))))
f8f70380
GS
290 XSRETURN_UNDEF;
291
0510663f 292 name = SvPV_nolen_const(ST(1));
3280af22 293 rv = &PL_sv_undef;
6d4a7be2 294
46e4b22b 295 if (SvROK(sv)) {
daba3364 296 sv = MUTABLE_SV(SvRV(sv));
46e4b22b 297 if (SvOBJECT(sv))
6f08146e
NIS
298 pkg = SvSTASH(sv);
299 }
300 else {
da51bb9b 301 pkg = gv_stashsv(sv, 0);
6f08146e
NIS
302 }
303
304 if (pkg) {
c4420975 305 GV * const gv = gv_fetchmethod_autoload(pkg, name, FALSE);
dc848c6f 306 if (gv && isGV(gv))
daba3364 307 rv = sv_2mortal(newRV(MUTABLE_SV(GvCV(gv))));
6d4a7be2 308 }
309
310 ST(0) = rv;
311 XSRETURN(1);
312}
313
cbc021f9 314XS(XS_UNIVERSAL_DOES)
315{
316 dVAR;
317 dXSARGS;
58c0efa5 318 PERL_UNUSED_ARG(cv);
cbc021f9 319
320 if (items != 2)
26be3db7 321 Perl_croak(aTHX_ "Usage: invocant->DOES(kind)");
cbc021f9 322 else {
323 SV * const sv = ST(0);
324 const char *name;
325
326 name = SvPV_nolen_const(ST(1));
327 if (sv_does( sv, name ))
328 XSRETURN_YES;
329
330 XSRETURN_NO;
331 }
332}
333
6d4a7be2 334XS(XS_UNIVERSAL_VERSION)
335{
97aff369 336 dVAR;
6d4a7be2 337 dXSARGS;
338 HV *pkg;
339 GV **gvp;
340 GV *gv;
341 SV *sv;
e1ec3a88 342 const char *undef;
58c0efa5 343 PERL_UNUSED_ARG(cv);
6d4a7be2 344
1571675a 345 if (SvROK(ST(0))) {
daba3364 346 sv = MUTABLE_SV(SvRV(ST(0)));
1571675a 347 if (!SvOBJECT(sv))
cea2e8a9 348 Perl_croak(aTHX_ "Cannot find version of an unblessed reference");
6d4a7be2 349 pkg = SvSTASH(sv);
350 }
351 else {
da51bb9b 352 pkg = gv_stashsv(ST(0), 0);
6d4a7be2 353 }
354
4608196e 355 gvp = pkg ? (GV**)hv_fetchs(pkg, "VERSION", FALSE) : NULL;
6d4a7be2 356
0008872a 357 if (gvp && isGV(gv = *gvp) && (sv = GvSV(gv)) && SvOK(sv)) {
c4420975 358 SV * const nsv = sv_newmortal();
6d4a7be2 359 sv_setsv(nsv, sv);
360 sv = nsv;
137d6fc0 361 if ( !sv_derived_from(sv, "version"))
ac0e6a2f 362 upg_version(sv, FALSE);
c445ea15 363 undef = NULL;
6d4a7be2 364 }
365 else {
daba3364 366 sv = &PL_sv_undef;
6d4a7be2 367 undef = "(undef)";
368 }
369
1571675a 370 if (items > 1) {
1571675a
GS
371 SV *req = ST(1);
372
62658f4d 373 if (undef) {
bfcb3514 374 if (pkg) {
c4420975 375 const char * const name = HvNAME_get(pkg);
a3b680e6 376 Perl_croak(aTHX_
bfcb3514
NC
377 "%s does not define $%s::VERSION--version check failed",
378 name, name);
379 } else {
a3b680e6
AL
380 Perl_croak(aTHX_
381 "%s defines neither package nor VERSION--version check failed",
0510663f 382 SvPVx_nolen_const(ST(0)) );
62658f4d
PM
383 }
384 }
ad63d80f 385
137d6fc0
JP
386 if ( !sv_derived_from(req, "version")) {
387 /* req may very well be R/O, so create a new object */
ac0e6a2f 388 req = sv_2mortal( new_version(req) );
137d6fc0 389 }
1571675a 390
ac0e6a2f 391 if ( vcmp( req, sv ) > 0 ) {
ef8f7699 392 if ( hv_exists(MUTABLE_HV(SvRV(req)), "qv", 2 ) ) {
ac0e6a2f
RGS
393 Perl_croak(aTHX_ "%s version %"SVf" required--"
394 "this is only version %"SVf"", HvNAME_get(pkg),
e3a22e3f
GF
395 SVfARG(sv_2mortal(vnormal(req))),
396 SVfARG(sv_2mortal(vnormal(sv))));
ac0e6a2f
RGS
397 } else {
398 Perl_croak(aTHX_ "%s version %"SVf" required--"
399 "this is only version %"SVf"", HvNAME_get(pkg),
e3a22e3f
GF
400 SVfARG(sv_2mortal(vstringify(req))),
401 SVfARG(sv_2mortal(vstringify(sv))));
ac0e6a2f
RGS
402 }
403 }
404
2d8e6c8d 405 }
6d4a7be2 406
2b140d5b 407 if ( SvOK(sv) && sv_derived_from(sv, "version") ) {
e3a22e3f 408 ST(0) = sv_2mortal(vstringify(sv));
13f8f398
JP
409 } else {
410 ST(0) = sv;
b38a9dc5 411 }
6d4a7be2 412
413 XSRETURN(1);
414}
415
439cb1c4
JP
416XS(XS_version_new)
417{
97aff369 418 dVAR;
439cb1c4 419 dXSARGS;
129318bd 420 if (items > 3)
afa74d42 421 croak_xs_usage(cv, "class, version");
439cb1c4
JP
422 SP -= items;
423 {
137d6fc0
JP
424 SV *vs = ST(1);
425 SV *rv;
c4420975
AL
426 const char * const classname =
427 sv_isobject(ST(0)) /* get the class if called as an object method */
428 ? HvNAME(SvSTASH(SvRV(ST(0))))
429 : (char *)SvPV_nolen(ST(0));
9137345a 430
91152fc1 431 if ( items == 1 || ! SvOK(vs) ) { /* no param or explicit undef */
92dcf8ce
JP
432 /* create empty object */
433 vs = sv_newmortal();
be5574c0 434 sv_setpvs(vs, "0");
9137345a
JP
435 }
436 else if ( items == 3 ) {
437 vs = sv_newmortal();
cfd0369c 438 Perl_sv_setpvf(aTHX_ vs,"v%s",SvPV_nolen_const(ST(2)));
129318bd 439 }
439cb1c4 440
137d6fc0 441 rv = new_version(vs);
0723351e 442 if ( strcmp(classname,"version") != 0 ) /* inherited new() */
da51bb9b 443 sv_bless(rv, gv_stashpv(classname, GV_ADD));
137d6fc0 444
6e449a3a 445 mPUSHs(rv);
439cb1c4
JP
446 PUTBACK;
447 return;
448 }
449}
450
451XS(XS_version_stringify)
452{
97aff369 453 dVAR;
41be1fbd
JH
454 dXSARGS;
455 if (items < 1)
afa74d42 456 croak_xs_usage(cv, "lobj, ...");
41be1fbd
JH
457 SP -= items;
458 {
d808b681 459 SV * lobj = ST(0);
41be1fbd 460
d808b681
JP
461 if (sv_derived_from(lobj, "version") && SvROK(lobj)) {
462 lobj = SvRV(lobj);
41be1fbd
JH
463 }
464 else
465 Perl_croak(aTHX_ "lobj is not of type version");
466
6e449a3a 467 mPUSHs(vstringify(lobj));
41be1fbd
JH
468
469 PUTBACK;
470 return;
471 }
439cb1c4
JP
472}
473
474XS(XS_version_numify)
475{
97aff369 476 dVAR;
41be1fbd
JH
477 dXSARGS;
478 if (items < 1)
afa74d42 479 croak_xs_usage(cv, "lobj, ...");
41be1fbd
JH
480 SP -= items;
481 {
d808b681 482 SV * lobj = ST(0);
41be1fbd 483
d808b681
JP
484 if (sv_derived_from(lobj, "version") && SvROK(lobj)) {
485 lobj = SvRV(lobj);
41be1fbd
JH
486 }
487 else
488 Perl_croak(aTHX_ "lobj is not of type version");
489
6e449a3a 490 mPUSHs(vnumify(lobj));
41be1fbd
JH
491
492 PUTBACK;
493 return;
494 }
439cb1c4
JP
495}
496
9137345a
JP
497XS(XS_version_normal)
498{
97aff369 499 dVAR;
9137345a
JP
500 dXSARGS;
501 if (items < 1)
afa74d42 502 croak_xs_usage(cv, "lobj, ...");
9137345a
JP
503 SP -= items;
504 {
d808b681 505 SV * lobj = ST(0);
9137345a 506
d808b681
JP
507 if (sv_derived_from(lobj, "version") && SvROK(lobj)) {
508 lobj = SvRV(lobj);
9137345a
JP
509 }
510 else
511 Perl_croak(aTHX_ "lobj is not of type version");
512
6e449a3a 513 mPUSHs(vnormal(lobj));
9137345a
JP
514
515 PUTBACK;
516 return;
517 }
518}
519
439cb1c4
JP
520XS(XS_version_vcmp)
521{
97aff369 522 dVAR;
41be1fbd
JH
523 dXSARGS;
524 if (items < 1)
afa74d42 525 croak_xs_usage(cv, "lobj, ...");
41be1fbd
JH
526 SP -= items;
527 {
d808b681 528 SV * lobj = ST(0);
41be1fbd 529
d808b681
JP
530 if (sv_derived_from(lobj, "version") && SvROK(lobj)) {
531 lobj = SvRV(lobj);
41be1fbd
JH
532 }
533 else
534 Perl_croak(aTHX_ "lobj is not of type version");
535
536 {
537 SV *rs;
538 SV *rvs;
539 SV * robj = ST(1);
7452cf6a 540 const IV swap = (IV)SvIV(ST(2));
41be1fbd
JH
541
542 if ( ! sv_derived_from(robj, "version") )
543 {
e3a22e3f
GF
544 robj = new_version(SvOK(robj) ? robj : newSVpvs_flags("0", SVs_TEMP));
545 sv_2mortal(robj);
41be1fbd
JH
546 }
547 rvs = SvRV(robj);
548
549 if ( swap )
550 {
551 rs = newSViv(vcmp(rvs,lobj));
552 }
553 else
554 {
555 rs = newSViv(vcmp(lobj,rvs));
556 }
557
6e449a3a 558 mPUSHs(rs);
41be1fbd
JH
559 }
560
561 PUTBACK;
562 return;
563 }
439cb1c4
JP
564}
565
566XS(XS_version_boolean)
567{
97aff369
JH
568 dVAR;
569 dXSARGS;
570 if (items < 1)
afa74d42 571 croak_xs_usage(cv, "lobj, ...");
97aff369 572 SP -= items;
d808b681 573 if (sv_derived_from(ST(0), "version") && SvROK(ST(0))) {
c4420975 574 SV * const lobj = SvRV(ST(0));
396482e1 575 SV * const rs = newSViv( vcmp(lobj,new_version(newSVpvs("0"))) );
6e449a3a 576 mPUSHs(rs);
c4420975
AL
577 PUTBACK;
578 return;
579 }
580 else
581 Perl_croak(aTHX_ "lobj is not of type version");
439cb1c4
JP
582}
583
584XS(XS_version_noop)
585{
97aff369 586 dVAR;
2dfd8427
AL
587 dXSARGS;
588 if (items < 1)
afa74d42 589 croak_xs_usage(cv, "lobj, ...");
d808b681 590 if (sv_derived_from(ST(0), "version") && SvROK(ST(0)))
2dfd8427
AL
591 Perl_croak(aTHX_ "operation not supported with version object");
592 else
593 Perl_croak(aTHX_ "lobj is not of type version");
594#ifndef HASATTRIBUTE_NORETURN
595 XSRETURN_EMPTY;
596#endif
439cb1c4
JP
597}
598
c8d69e4a
JP
599XS(XS_version_is_alpha)
600{
97aff369 601 dVAR;
c8d69e4a
JP
602 dXSARGS;
603 if (items != 1)
afa74d42 604 croak_xs_usage(cv, "lobj");
c8d69e4a 605 SP -= items;
d808b681 606 if (sv_derived_from(ST(0), "version") && SvROK(ST(0))) {
c4420975 607 SV * const lobj = ST(0);
ef8f7699 608 if ( hv_exists(MUTABLE_HV(SvRV(lobj)), "alpha", 5 ) )
c4420975
AL
609 XSRETURN_YES;
610 else
611 XSRETURN_NO;
c8d69e4a
JP
612 PUTBACK;
613 return;
614 }
c4420975
AL
615 else
616 Perl_croak(aTHX_ "lobj is not of type version");
c8d69e4a
JP
617}
618
137d6fc0
JP
619XS(XS_version_qv)
620{
97aff369 621 dVAR;
137d6fc0 622 dXSARGS;
4ed3fda4 623 PERL_UNUSED_ARG(cv);
137d6fc0
JP
624 SP -= items;
625 {
f941e658
JP
626 SV * ver = ST(0);
627 SV * rv;
628 const char * classname = "";
91152fc1 629 if ( items == 2 && SvOK(ST(1)) ) {
f941e658
JP
630 /* getting called as object or class method */
631 ver = ST(1);
632 classname =
633 sv_isobject(ST(0)) /* class called as an object method */
634 ? HvNAME_get(SvSTASH(SvRV(ST(0))))
635 : (char *)SvPV_nolen(ST(0));
636 }
637 if ( !SvVOK(ver) ) { /* not already a v-string */
638 rv = sv_newmortal();
ac0e6a2f
RGS
639 sv_setsv(rv,ver); /* make a duplicate */
640 upg_version(rv, TRUE);
f941e658
JP
641 } else {
642 rv = sv_2mortal(new_version(ver));
137d6fc0 643 }
f941e658
JP
644 if ( items == 2 && strcmp(classname,"version") ) { /* inherited new() */
645 sv_bless(rv, gv_stashpv(classname, GV_ADD));
137d6fc0 646 }
f941e658
JP
647 PUSHs(rv);
648 }
649 PUTBACK;
650 return;
651}
137d6fc0 652
f941e658
JP
653XS(XS_version_is_qv)
654{
655 dVAR;
656 dXSARGS;
657 if (items != 1)
658 croak_xs_usage(cv, "lobj");
659 SP -= items;
d808b681 660 if (sv_derived_from(ST(0), "version") && SvROK(ST(0))) {
f941e658
JP
661 SV * const lobj = ST(0);
662 if ( hv_exists(MUTABLE_HV(SvRV(lobj)), "qv", 2 ) )
663 XSRETURN_YES;
664 else
665 XSRETURN_NO;
137d6fc0
JP
666 PUTBACK;
667 return;
668 }
f941e658
JP
669 else
670 Perl_croak(aTHX_ "lobj is not of type version");
137d6fc0
JP
671}
672
8800c35a
JH
673XS(XS_utf8_is_utf8)
674{
97aff369 675 dVAR;
41be1fbd
JH
676 dXSARGS;
677 if (items != 1)
afa74d42 678 croak_xs_usage(cv, "sv");
c4420975 679 else {
76f73021
GF
680 SV * const sv = ST(0);
681 SvGETMAGIC(sv);
c4420975
AL
682 if (SvUTF8(sv))
683 XSRETURN_YES;
684 else
685 XSRETURN_NO;
41be1fbd
JH
686 }
687 XSRETURN_EMPTY;
8800c35a
JH
688}
689
1b026014
NIS
690XS(XS_utf8_valid)
691{
97aff369 692 dVAR;
41be1fbd
JH
693 dXSARGS;
694 if (items != 1)
afa74d42 695 croak_xs_usage(cv, "sv");
c4420975
AL
696 else {
697 SV * const sv = ST(0);
698 STRLEN len;
699 const char * const s = SvPV_const(sv,len);
700 if (!SvUTF8(sv) || is_utf8_string((const U8*)s,len))
701 XSRETURN_YES;
702 else
703 XSRETURN_NO;
704 }
41be1fbd 705 XSRETURN_EMPTY;
1b026014
NIS
706}
707
708XS(XS_utf8_encode)
709{
97aff369 710 dVAR;
1b026014
NIS
711 dXSARGS;
712 if (items != 1)
afa74d42 713 croak_xs_usage(cv, "sv");
c4420975 714 sv_utf8_encode(ST(0));
1b026014
NIS
715 XSRETURN_EMPTY;
716}
717
718XS(XS_utf8_decode)
719{
97aff369 720 dVAR;
1b026014
NIS
721 dXSARGS;
722 if (items != 1)
afa74d42 723 croak_xs_usage(cv, "sv");
c4420975
AL
724 else {
725 SV * const sv = ST(0);
6867be6d 726 const bool RETVAL = sv_utf8_decode(sv);
1b026014
NIS
727 ST(0) = boolSV(RETVAL);
728 sv_2mortal(ST(0));
729 }
730 XSRETURN(1);
731}
732
733XS(XS_utf8_upgrade)
734{
97aff369 735 dVAR;
1b026014
NIS
736 dXSARGS;
737 if (items != 1)
afa74d42 738 croak_xs_usage(cv, "sv");
c4420975
AL
739 else {
740 SV * const sv = ST(0);
1b026014
NIS
741 STRLEN RETVAL;
742 dXSTARG;
743
744 RETVAL = sv_utf8_upgrade(sv);
745 XSprePUSH; PUSHi((IV)RETVAL);
746 }
747 XSRETURN(1);
748}
749
750XS(XS_utf8_downgrade)
751{
97aff369 752 dVAR;
1b026014
NIS
753 dXSARGS;
754 if (items < 1 || items > 2)
afa74d42 755 croak_xs_usage(cv, "sv, failok=0");
c4420975
AL
756 else {
757 SV * const sv = ST(0);
6867be6d
AL
758 const bool failok = (items < 2) ? 0 : (int)SvIV(ST(1));
759 const bool RETVAL = sv_utf8_downgrade(sv, failok);
1b026014 760
1b026014
NIS
761 ST(0) = boolSV(RETVAL);
762 sv_2mortal(ST(0));
763 }
764 XSRETURN(1);
765}
766
767XS(XS_utf8_native_to_unicode)
768{
97aff369 769 dVAR;
1b026014 770 dXSARGS;
6867be6d 771 const UV uv = SvUV(ST(0));
b7953727
JH
772
773 if (items > 1)
afa74d42 774 croak_xs_usage(cv, "sv");
b7953727 775
1b026014
NIS
776 ST(0) = sv_2mortal(newSViv(NATIVE_TO_UNI(uv)));
777 XSRETURN(1);
778}
779
780XS(XS_utf8_unicode_to_native)
781{
97aff369 782 dVAR;
1b026014 783 dXSARGS;
6867be6d 784 const UV uv = SvUV(ST(0));
b7953727
JH
785
786 if (items > 1)
afa74d42 787 croak_xs_usage(cv, "sv");
b7953727 788
1b026014
NIS
789 ST(0) = sv_2mortal(newSViv(UNI_TO_NATIVE(uv)));
790 XSRETURN(1);
791}
792
14a976d6 793XS(XS_Internals_SvREADONLY) /* This is dangerous stuff. */
29569577 794{
97aff369 795 dVAR;
29569577 796 dXSARGS;
c4420975 797 SV * const sv = SvRV(ST(0));
58c0efa5 798 PERL_UNUSED_ARG(cv);
6867be6d 799
29569577
JH
800 if (items == 1) {
801 if (SvREADONLY(sv))
802 XSRETURN_YES;
803 else
804 XSRETURN_NO;
805 }
806 else if (items == 2) {
807 if (SvTRUE(ST(1))) {
808 SvREADONLY_on(sv);
809 XSRETURN_YES;
810 }
811 else {
14a976d6 812 /* I hope you really know what you are doing. */
29569577
JH
813 SvREADONLY_off(sv);
814 XSRETURN_NO;
815 }
816 }
14a976d6 817 XSRETURN_UNDEF; /* Can't happen. */
29569577
JH
818}
819
14a976d6 820XS(XS_Internals_SvREFCNT) /* This is dangerous stuff. */
29569577 821{
97aff369 822 dVAR;
29569577 823 dXSARGS;
c4420975 824 SV * const sv = SvRV(ST(0));
58c0efa5 825 PERL_UNUSED_ARG(cv);
6867be6d 826
29569577 827 if (items == 1)
14a976d6 828 XSRETURN_IV(SvREFCNT(sv) - 1); /* Minus the ref created for us. */
29569577 829 else if (items == 2) {
14a976d6 830 /* I hope you really know what you are doing. */
29569577
JH
831 SvREFCNT(sv) = SvIV(ST(1));
832 XSRETURN_IV(SvREFCNT(sv));
833 }
14a976d6 834 XSRETURN_UNDEF; /* Can't happen. */
29569577
JH
835}
836
f044d0d1 837XS(XS_Internals_hv_clear_placehold)
dfd4ef2f 838{
97aff369 839 dVAR;
dfd4ef2f 840 dXSARGS;
6867be6d 841
3540d4ce 842 if (items != 1)
afa74d42 843 croak_xs_usage(cv, "hv");
c4420975 844 else {
ef8f7699 845 HV * const hv = MUTABLE_HV(SvRV(ST(0)));
c4420975
AL
846 hv_clear_placeholders(hv);
847 XSRETURN(0);
848 }
dfd4ef2f 849}
39f7a870
JH
850
851XS(XS_PerlIO_get_layers)
852{
97aff369 853 dVAR;
39f7a870
JH
854 dXSARGS;
855 if (items < 1 || items % 2 == 0)
afa74d42 856 croak_xs_usage(cv, "filehandle[,args]");
5fef3b4a 857#ifdef USE_PERLIO
39f7a870
JH
858 {
859 SV * sv;
860 GV * gv;
861 IO * io;
862 bool input = TRUE;
863 bool details = FALSE;
864
865 if (items > 1) {
c4420975 866 SV * const *svp;
39f7a870 867 for (svp = MARK + 2; svp <= SP; svp += 2) {
c4420975
AL
868 SV * const * const varp = svp;
869 SV * const * const valp = svp + 1;
39f7a870 870 STRLEN klen;
c4420975 871 const char * const key = SvPV_const(*varp, klen);
39f7a870
JH
872
873 switch (*key) {
874 case 'i':
875 if (klen == 5 && memEQ(key, "input", 5)) {
876 input = SvTRUE(*valp);
877 break;
878 }
879 goto fail;
880 case 'o':
881 if (klen == 6 && memEQ(key, "output", 6)) {
882 input = !SvTRUE(*valp);
883 break;
884 }
885 goto fail;
886 case 'd':
887 if (klen == 7 && memEQ(key, "details", 7)) {
888 details = SvTRUE(*valp);
889 break;
890 }
891 goto fail;
892 default:
893 fail:
894 Perl_croak(aTHX_
895 "get_layers: unknown argument '%s'",
896 key);
897 }
898 }
899
900 SP -= (items - 1);
901 }
902
903 sv = POPs;
159b6efe 904 gv = MUTABLE_GV(sv);
39f7a870
JH
905
906 if (!isGV(sv)) {
907 if (SvROK(sv) && isGV(SvRV(sv)))
159b6efe 908 gv = MUTABLE_GV(SvRV(sv));
671d49be 909 else if (SvPOKp(sv))
f776e3cd 910 gv = gv_fetchsv(sv, 0, SVt_PVIO);
39f7a870
JH
911 }
912
913 if (gv && (io = GvIO(gv))) {
c4420975 914 AV* const av = PerlIO_get_layers(aTHX_ input ?
39f7a870
JH
915 IoIFP(io) : IoOFP(io));
916 I32 i;
c4420975 917 const I32 last = av_len(av);
39f7a870
JH
918 I32 nitem = 0;
919
920 for (i = last; i >= 0; i -= 3) {
c4420975
AL
921 SV * const * const namsvp = av_fetch(av, i - 2, FALSE);
922 SV * const * const argsvp = av_fetch(av, i - 1, FALSE);
923 SV * const * const flgsvp = av_fetch(av, i, FALSE);
39f7a870 924
c4420975
AL
925 const bool namok = namsvp && *namsvp && SvPOK(*namsvp);
926 const bool argok = argsvp && *argsvp && SvPOK(*argsvp);
927 const bool flgok = flgsvp && *flgsvp && SvIOK(*flgsvp);
39f7a870
JH
928
929 if (details) {
92e45a3e
NC
930 /* Indents of 5? Yuck. */
931 /* We know that PerlIO_get_layers creates a new SV for
932 the name and flags, so we can just take a reference
933 and "steal" it when we free the AV below. */
ec3bab8e 934 XPUSHs(namok
92e45a3e 935 ? sv_2mortal(SvREFCNT_inc_simple_NN(*namsvp))
ec3bab8e
NC
936 : &PL_sv_undef);
937 XPUSHs(argok
92e45a3e
NC
938 ? newSVpvn_flags(SvPVX_const(*argsvp),
939 SvCUR(*argsvp),
940 (SvUTF8(*argsvp) ? SVf_UTF8 : 0)
941 | SVs_TEMP)
942 : &PL_sv_undef);
96ccaf53 943 XPUSHs(flgok
92e45a3e 944 ? sv_2mortal(SvREFCNT_inc_simple_NN(*flgsvp))
ec3bab8e 945 : &PL_sv_undef);
39f7a870
JH
946 nitem += 3;
947 }
948 else {
949 if (namok && argok)
1eb9e81d 950 XPUSHs(sv_2mortal(Perl_newSVpvf(aTHX_ "%"SVf"(%"SVf")",
be2597df 951 SVfARG(*namsvp),
1eb9e81d 952 SVfARG(*argsvp))));
39f7a870 953 else if (namok)
92e45a3e 954 XPUSHs(sv_2mortal(SvREFCNT_inc_simple_NN(*namsvp)));
39f7a870
JH
955 else
956 XPUSHs(&PL_sv_undef);
957 nitem++;
958 if (flgok) {
c4420975 959 const IV flags = SvIVX(*flgsvp);
39f7a870
JH
960
961 if (flags & PERLIO_F_UTF8) {
84bafc02 962 XPUSHs(newSVpvs_flags("utf8", SVs_TEMP));
39f7a870
JH
963 nitem++;
964 }
965 }
966 }
967 }
968
969 SvREFCNT_dec(av);
970
971 XSRETURN(nitem);
972 }
973 }
5fef3b4a 974#endif
39f7a870
JH
975
976 XSRETURN(0);
977}
978
9a7034eb 979XS(XS_Internals_hash_seed)
c910b28a 980{
97aff369 981 dVAR;
c85d3f85
NC
982 /* Using dXSARGS would also have dITEM and dSP,
983 * which define 2 unused local variables. */
557b887a 984 dAXMARK;
53c1dcc0 985 PERL_UNUSED_ARG(cv);
ad73156c 986 PERL_UNUSED_VAR(mark);
81eaca17 987 XSRETURN_UV(PERL_HASH_SEED);
c910b28a
JH
988}
989
008fb0c0 990XS(XS_Internals_rehash_seed)
8e90d776 991{
97aff369 992 dVAR;
8e90d776
NC
993 /* Using dXSARGS would also have dITEM and dSP,
994 * which define 2 unused local variables. */
557b887a 995 dAXMARK;
53c1dcc0 996 PERL_UNUSED_ARG(cv);
ad73156c 997 PERL_UNUSED_VAR(mark);
008fb0c0 998 XSRETURN_UV(PL_rehash_seed);
8e90d776
NC
999}
1000
05619474
NC
1001XS(XS_Internals_HvREHASH) /* Subject to change */
1002{
97aff369 1003 dVAR;
05619474 1004 dXSARGS;
93c51217 1005 PERL_UNUSED_ARG(cv);
05619474 1006 if (SvROK(ST(0))) {
ef8f7699 1007 const HV * const hv = (const HV *) SvRV(ST(0));
05619474
NC
1008 if (items == 1 && SvTYPE(hv) == SVt_PVHV) {
1009 if (HvREHASH(hv))
1010 XSRETURN_YES;
1011 else
1012 XSRETURN_NO;
1013 }
1014 }
1015 Perl_croak(aTHX_ "Internals::HvREHASH $hashref");
1016}
241d1a3b 1017
80305961
YO
1018XS(XS_re_is_regexp)
1019{
1020 dVAR;
1021 dXSARGS;
f7e71195
AB
1022 PERL_UNUSED_VAR(cv);
1023
80305961 1024 if (items != 1)
afa74d42 1025 croak_xs_usage(cv, "sv");
f7e71195 1026
80305961 1027 SP -= items;
f7e71195
AB
1028
1029 if (SvRXOK(ST(0))) {
1030 XSRETURN_YES;
1031 } else {
1032 XSRETURN_NO;
80305961
YO
1033 }
1034}
1035
192b9cd1 1036XS(XS_re_regnames_count)
80305961 1037{
192b9cd1
AB
1038 REGEXP *rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL;
1039 SV * ret;
80305961
YO
1040 dVAR;
1041 dXSARGS;
192b9cd1
AB
1042
1043 if (items != 0)
afa74d42 1044 croak_xs_usage(cv, "");
192b9cd1
AB
1045
1046 SP -= items;
1047
1048 if (!rx)
1049 XSRETURN_UNDEF;
1050
1051 ret = CALLREG_NAMED_BUFF_COUNT(rx);
1052
1053 SPAGAIN;
1054
1055 if (ret) {
ec83ea38 1056 mXPUSHs(ret);
192b9cd1
AB
1057 PUTBACK;
1058 return;
1059 } else {
1060 XSRETURN_UNDEF;
1061 }
1062}
1063
1064XS(XS_re_regname)
1065{
1066 dVAR;
1067 dXSARGS;
1068 REGEXP * rx;
1069 U32 flags;
1070 SV * ret;
1071
28d8d7f4 1072 if (items < 1 || items > 2)
afa74d42 1073 croak_xs_usage(cv, "name[, all ]");
192b9cd1 1074
80305961 1075 SP -= items;
80305961 1076
192b9cd1
AB
1077 rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL;
1078
1079 if (!rx)
1080 XSRETURN_UNDEF;
1081
1082 if (items == 2 && SvTRUE(ST(1))) {
f1b875a0 1083 flags = RXapif_ALL;
192b9cd1 1084 } else {
f1b875a0 1085 flags = RXapif_ONE;
80305961 1086 }
f1b875a0 1087 ret = CALLREG_NAMED_BUFF_FETCH(rx, ST(0), (flags | RXapif_REGNAME));
192b9cd1
AB
1088
1089 if (ret) {
ec83ea38 1090 mXPUSHs(ret);
192b9cd1
AB
1091 XSRETURN(1);
1092 }
1093 XSRETURN_UNDEF;
80305961
YO
1094}
1095
192b9cd1 1096
80305961
YO
1097XS(XS_re_regnames)
1098{
192b9cd1 1099 dVAR;
80305961 1100 dXSARGS;
192b9cd1
AB
1101 REGEXP * rx;
1102 U32 flags;
1103 SV *ret;
1104 AV *av;
1105 I32 length;
1106 I32 i;
1107 SV **entry;
1108
1109 if (items > 1)
afa74d42 1110 croak_xs_usage(cv, "[all]");
192b9cd1
AB
1111
1112 rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL;
1113
1114 if (!rx)
1115 XSRETURN_UNDEF;
1116
1117 if (items == 1 && SvTRUE(ST(0))) {
f1b875a0 1118 flags = RXapif_ALL;
192b9cd1 1119 } else {
f1b875a0 1120 flags = RXapif_ONE;
192b9cd1
AB
1121 }
1122
80305961 1123 SP -= items;
80305961 1124
f1b875a0 1125 ret = CALLREG_NAMED_BUFF_ALL(rx, (flags | RXapif_REGNAMES));
192b9cd1
AB
1126
1127 SPAGAIN;
1128
1129 SP -= items;
1130
1131 if (!ret)
1132 XSRETURN_UNDEF;
1133
502c6561 1134 av = MUTABLE_AV(SvRV(ret));
192b9cd1
AB
1135 length = av_len(av);
1136
1137 for (i = 0; i <= length; i++) {
1138 entry = av_fetch(av, i, FALSE);
1139
1140 if (!entry)
1141 Perl_croak(aTHX_ "NULL array element in re::regnames()");
1142
ec83ea38 1143 mXPUSHs(SvREFCNT_inc_simple_NN(*entry));
80305961 1144 }
ec83ea38
MHM
1145
1146 SvREFCNT_dec(ret);
1147
192b9cd1
AB
1148 PUTBACK;
1149 return;
80305961
YO
1150}
1151
192c1e27
JH
1152XS(XS_re_regexp_pattern)
1153{
1154 dVAR;
1155 dXSARGS;
1156 REGEXP *re;
192c1e27
JH
1157
1158 if (items != 1)
afa74d42 1159 croak_xs_usage(cv, "sv");
192c1e27
JH
1160
1161 SP -= items;
1162
1163 /*
1164 Checks if a reference is a regex or not. If the parameter is
1165 not a ref, or is not the result of a qr// then returns false
1166 in scalar context and an empty list in list context.
1167 Otherwise in list context it returns the pattern and the
1168 modifiers, in scalar context it returns the pattern just as it
1169 would if the qr// was stringified normally, regardless as
1170 to the class of the variable and any strigification overloads
1171 on the object.
1172 */
1173
1174 if ((re = SvRX(ST(0)))) /* assign deliberate */
1175 {
22c985d5 1176 /* Houston, we have a regex! */
192c1e27
JH
1177 SV *pattern;
1178 STRLEN left = 0;
525aa621 1179 char reflags[sizeof(INT_PAT_MODS)];
192c1e27
JH
1180
1181 if ( GIMME_V == G_ARRAY ) {
1182 /*
1183 we are in list context so stringify
1184 the modifiers that apply. We ignore "negative
1185 modifiers" in this scenario.
1186 */
1187
1188 const char *fptr = INT_PAT_MODS;
1189 char ch;
1190 U16 match_flags = (U16)((RX_EXTFLAGS(re) & PMf_COMPILETIME)
1191 >> RXf_PMf_STD_PMMOD_SHIFT);
1192
1193 while((ch = *fptr++)) {
1194 if(match_flags & 1) {
1195 reflags[left++] = ch;
1196 }
1197 match_flags >>= 1;
1198 }
1199
fb632ce3
NC
1200 pattern = newSVpvn_flags(RX_PRECOMP(re),RX_PRELEN(re),
1201 (RX_UTF8(re) ? SVf_UTF8 : 0) | SVs_TEMP);
192c1e27
JH
1202
1203 /* return the pattern and the modifiers */
1204 XPUSHs(pattern);
fb632ce3 1205 XPUSHs(newSVpvn_flags(reflags, left, SVs_TEMP));
192c1e27
JH
1206 XSRETURN(2);
1207 } else {
1208 /* Scalar, so use the string that Perl would return */
1209 /* return the pattern in (?msix:..) format */
1210#if PERL_VERSION >= 11
daba3364 1211 pattern = sv_2mortal(newSVsv(MUTABLE_SV(re)));
192c1e27 1212#else
fb632ce3
NC
1213 pattern = newSVpvn_flags(RX_WRAPPED(re), RX_WRAPLEN(re),
1214 (RX_UTF8(re) ? SVf_UTF8 : 0) | SVs_TEMP);
192c1e27
JH
1215#endif
1216 XPUSHs(pattern);
1217 XSRETURN(1);
1218 }
1219 } else {
1220 /* It ain't a regexp folks */
1221 if ( GIMME_V == G_ARRAY ) {
1222 /* return the empty list */
1223 XSRETURN_UNDEF;
1224 } else {
1225 /* Because of the (?:..) wrapping involved in a
1226 stringified pattern it is impossible to get a
1227 result for a real regexp that would evaluate to
1228 false. Therefore we can return PL_sv_no to signify
1229 that the object is not a regex, this means that one
1230 can say
1231
1232 if (regex($might_be_a_regex) eq '(?:foo)') { }
1233
1234 and not worry about undefined values.
1235 */
1236 XSRETURN_NO;
1237 }
1238 }
1239 /* NOT-REACHED */
1240}
1241
192b9cd1 1242XS(XS_Tie_Hash_NamedCapture_FETCH)
80305961 1243{
192b9cd1 1244 dVAR;
80305961 1245 dXSARGS;
192b9cd1
AB
1246 REGEXP * rx;
1247 U32 flags;
1248 SV * ret;
1249
1250 if (items != 2)
afa74d42 1251 croak_xs_usage(cv, "$key, $flags");
192b9cd1
AB
1252
1253 rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL;
1254
1d021cc8 1255 if (!rx || !SvROK(ST(0)))
192b9cd1
AB
1256 XSRETURN_UNDEF;
1257
80305961 1258 SP -= items;
192b9cd1 1259
daba3364 1260 flags = (U32)INT2PTR(IV,SvIV(SvRV(MUTABLE_SV(ST(0)))));
192b9cd1
AB
1261 ret = CALLREG_NAMED_BUFF_FETCH(rx, ST(1), flags);
1262
1263 SPAGAIN;
1264
1265 if (ret) {
ec83ea38 1266 mXPUSHs(ret);
192b9cd1
AB
1267 PUTBACK;
1268 return;
1269 }
1270 XSRETURN_UNDEF;
1271}
1272
1273XS(XS_Tie_Hash_NamedCapture_STORE)
1274{
1275 dVAR;
1276 dXSARGS;
1277 REGEXP * rx;
1278 U32 flags;
1279
1280 if (items != 3)
afa74d42 1281 croak_xs_usage(cv, "$key, $value, $flags");
192b9cd1
AB
1282
1283 rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL;
1284
1d021cc8 1285 if (!rx || !SvROK(ST(0))) {
192b9cd1 1286 if (!PL_localizing)
6ad8f254 1287 Perl_croak_no_modify(aTHX);
192b9cd1 1288 else
28d8d7f4 1289 XSRETURN_UNDEF;
80305961 1290 }
192b9cd1
AB
1291
1292 SP -= items;
1293
daba3364 1294 flags = (U32)INT2PTR(IV,SvIV(SvRV(MUTABLE_SV(ST(0)))));
192b9cd1 1295 CALLREG_NAMED_BUFF_STORE(rx,ST(1), ST(2), flags);
80305961
YO
1296}
1297
192b9cd1
AB
1298XS(XS_Tie_Hash_NamedCapture_DELETE)
1299{
1300 dVAR;
1301 dXSARGS;
1302 REGEXP * rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL;
1303 U32 flags;
80305961 1304
192b9cd1 1305 if (items != 2)
afa74d42 1306 croak_xs_usage(cv, "$key, $flags");
192b9cd1 1307
1d021cc8 1308 if (!rx || !SvROK(ST(0)))
6ad8f254 1309 Perl_croak_no_modify(aTHX);
192b9cd1
AB
1310
1311 SP -= items;
1312
daba3364 1313 flags = (U32)INT2PTR(IV,SvIV(SvRV(MUTABLE_SV(ST(0)))));
192b9cd1
AB
1314 CALLREG_NAMED_BUFF_DELETE(rx, ST(1), flags);
1315}
1316
1317XS(XS_Tie_Hash_NamedCapture_CLEAR)
80305961 1318{
192b9cd1 1319 dVAR;
80305961 1320 dXSARGS;
192b9cd1
AB
1321 REGEXP * rx;
1322 U32 flags;
1323
1324 if (items != 1)
afa74d42 1325 croak_xs_usage(cv, "$flags");
192b9cd1
AB
1326
1327 rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL;
1328
1d021cc8 1329 if (!rx || !SvROK(ST(0)))
6ad8f254 1330 Perl_croak_no_modify(aTHX);
192b9cd1 1331
80305961 1332 SP -= items;
80305961 1333
daba3364 1334 flags = (U32)INT2PTR(IV,SvIV(SvRV(MUTABLE_SV(ST(0)))));
192b9cd1
AB
1335 CALLREG_NAMED_BUFF_CLEAR(rx, flags);
1336}
1337
1338XS(XS_Tie_Hash_NamedCapture_EXISTS)
1339{
1340 dVAR;
1341 dXSARGS;
1342 REGEXP * rx;
1343 U32 flags;
1344 SV * ret;
1345
1346 if (items != 2)
afa74d42 1347 croak_xs_usage(cv, "$key, $flags");
192b9cd1
AB
1348
1349 rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL;
1350
1d021cc8 1351 if (!rx || !SvROK(ST(0)))
28d8d7f4 1352 XSRETURN_UNDEF;
192b9cd1
AB
1353
1354 SP -= items;
1355
daba3364 1356 flags = (U32)INT2PTR(IV,SvIV(SvRV(MUTABLE_SV(ST(0)))));
192b9cd1
AB
1357 ret = CALLREG_NAMED_BUFF_EXISTS(rx, ST(1), flags);
1358
1359 SPAGAIN;
1360
1361 XPUSHs(ret);
80305961
YO
1362 PUTBACK;
1363 return;
80305961
YO
1364}
1365
86aa3d53 1366XS(XS_Tie_Hash_NamedCapture_FIRSTK)
192b9cd1
AB
1367{
1368 dVAR;
1369 dXSARGS;
1370 REGEXP * rx;
1371 U32 flags;
1372 SV * ret;
80305961 1373
192b9cd1 1374 if (items != 1)
afa74d42 1375 croak_xs_usage(cv, "");
192b9cd1
AB
1376
1377 rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL;
1378
1d021cc8 1379 if (!rx || !SvROK(ST(0)))
192b9cd1
AB
1380 XSRETURN_UNDEF;
1381
1382 SP -= items;
1383
daba3364 1384 flags = (U32)INT2PTR(IV,SvIV(SvRV(MUTABLE_SV(ST(0)))));
192b9cd1
AB
1385 ret = CALLREG_NAMED_BUFF_FIRSTKEY(rx, flags);
1386
1387 SPAGAIN;
1388
1389 if (ret) {
ec83ea38 1390 mXPUSHs(ret);
192b9cd1
AB
1391 PUTBACK;
1392 } else {
1393 XSRETURN_UNDEF;
1394 }
1395
1396}
1397
86aa3d53 1398XS(XS_Tie_Hash_NamedCapture_NEXTK)
80305961 1399{
192b9cd1 1400 dVAR;
80305961 1401 dXSARGS;
192b9cd1
AB
1402 REGEXP * rx;
1403 U32 flags;
1404 SV * ret;
1405
1406 if (items != 2)
afa74d42 1407 croak_xs_usage(cv, "$lastkey");
192b9cd1
AB
1408
1409 rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL;
1410
1d021cc8 1411 if (!rx || !SvROK(ST(0)))
192b9cd1 1412 XSRETURN_UNDEF;
80305961 1413
80305961 1414 SP -= items;
192b9cd1 1415
daba3364 1416 flags = (U32)INT2PTR(IV,SvIV(SvRV(MUTABLE_SV(ST(0)))));
192b9cd1
AB
1417 ret = CALLREG_NAMED_BUFF_NEXTKEY(rx, ST(1), flags);
1418
1419 SPAGAIN;
1420
1421 if (ret) {
ec83ea38 1422 mXPUSHs(ret);
80305961
YO
1423 } else {
1424 XSRETURN_UNDEF;
1425 }
1426 PUTBACK;
192b9cd1
AB
1427}
1428
1429XS(XS_Tie_Hash_NamedCapture_SCALAR)
1430{
1431 dVAR;
1432 dXSARGS;
1433 REGEXP * rx;
1434 U32 flags;
1435 SV * ret;
1436
1437 if (items != 1)
afa74d42 1438 croak_xs_usage(cv, "");
192b9cd1
AB
1439
1440 rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL;
1441
1d021cc8 1442 if (!rx || !SvROK(ST(0)))
192b9cd1
AB
1443 XSRETURN_UNDEF;
1444
1445 SP -= items;
1446
daba3364 1447 flags = (U32)INT2PTR(IV,SvIV(SvRV(MUTABLE_SV(ST(0)))));
192b9cd1
AB
1448 ret = CALLREG_NAMED_BUFF_SCALAR(rx, flags);
1449
1450 SPAGAIN;
1451
1452 if (ret) {
ec83ea38 1453 mXPUSHs(ret);
192b9cd1
AB
1454 PUTBACK;
1455 return;
1456 } else {
1457 XSRETURN_UNDEF;
1458 }
1459}
1460
1461XS(XS_Tie_Hash_NamedCapture_flags)
1462{
1463 dVAR;
1464 dXSARGS;
1465
1466 if (items != 0)
afa74d42 1467 croak_xs_usage(cv, "");
192b9cd1 1468
6e449a3a
MHM
1469 mXPUSHu(RXapif_ONE);
1470 mXPUSHu(RXapif_ALL);
192b9cd1
AB
1471 PUTBACK;
1472 return;
80305961
YO
1473}
1474
eff5b9d5
NC
1475struct xsub_details {
1476 const char *name;
1477 XSUBADDR_t xsub;
1478 const char *proto;
1479};
1480
1481struct xsub_details details[] = {
1482 {"UNIVERSAL::isa", XS_UNIVERSAL_isa, NULL},
1483 {"UNIVERSAL::can", XS_UNIVERSAL_can, NULL},
1484 {"UNIVERSAL::DOES", XS_UNIVERSAL_DOES, NULL},
1485 {"UNIVERSAL::VERSION", XS_UNIVERSAL_VERSION, NULL},
1486 {"version::()", XS_version_noop, NULL},
1487 {"version::new", XS_version_new, NULL},
1488 {"version::parse", XS_version_new, NULL},
1489 {"version::(\"\"", XS_version_stringify, NULL},
1490 {"version::stringify", XS_version_stringify, NULL},
1491 {"version::(0+", XS_version_numify, NULL},
1492 {"version::numify", XS_version_numify, NULL},
1493 {"version::normal", XS_version_normal, NULL},
1494 {"version::(cmp", XS_version_vcmp, NULL},
1495 {"version::(<=>", XS_version_vcmp, NULL},
1496 {"version::vcmp", XS_version_vcmp, NULL},
1497 {"version::(bool", XS_version_boolean, NULL},
1498 {"version::boolean", XS_version_boolean, NULL},
1499 {"version::(nomethod", XS_version_noop, NULL},
1500 {"version::noop", XS_version_noop, NULL},
1501 {"version::is_alpha", XS_version_is_alpha, NULL},
1502 {"version::qv", XS_version_qv, NULL},
1503 {"version::declare", XS_version_qv, NULL},
1504 {"version::is_qv", XS_version_is_qv, NULL},
1505 {"utf8::is_utf8", XS_utf8_is_utf8, NULL},
1506 {"utf8::valid", XS_utf8_valid, NULL},
1507 {"utf8::encode", XS_utf8_encode, NULL},
1508 {"utf8::decode", XS_utf8_decode, NULL},
1509 {"utf8::upgrade", XS_utf8_upgrade, NULL},
1510 {"utf8::downgrade", XS_utf8_downgrade, NULL},
1511 {"utf8::native_to_unicode", XS_utf8_native_to_unicode, NULL},
1512 {"utf8::unicode_to_native", XS_utf8_unicode_to_native, NULL},
1513 {"Internals::SvREADONLY", XS_Internals_SvREADONLY, "\\[$%@];$"},
1514 {"Internals::SvREFCNT", XS_Internals_SvREFCNT, "\\[$%@];$"},
1515 {"Internals::hv_clear_placeholders", XS_Internals_hv_clear_placehold, "\\%"},
1516 {"PerlIO::get_layers", XS_PerlIO_get_layers, "*;@"},
1517 {"Internals::hash_seed", XS_Internals_hash_seed, ""},
1518 {"Internals::rehash_seed", XS_Internals_rehash_seed, ""},
1519 {"Internals::HvREHASH", XS_Internals_HvREHASH, "\\%"},
1520 {"re::is_regexp", XS_re_is_regexp, "$"},
1521 {"re::regname", XS_re_regname, ";$$"},
1522 {"re::regnames", XS_re_regnames, ";$"},
1523 {"re::regnames_count", XS_re_regnames_count, ""},
1524 {"re::regexp_pattern", XS_re_regexp_pattern, "$"},
1525 {"Tie::Hash::NamedCapture::FETCH", XS_Tie_Hash_NamedCapture_FETCH, NULL},
1526 {"Tie::Hash::NamedCapture::STORE", XS_Tie_Hash_NamedCapture_STORE, NULL},
1527 {"Tie::Hash::NamedCapture::DELETE", XS_Tie_Hash_NamedCapture_DELETE, NULL},
1528 {"Tie::Hash::NamedCapture::CLEAR", XS_Tie_Hash_NamedCapture_CLEAR, NULL},
1529 {"Tie::Hash::NamedCapture::EXISTS", XS_Tie_Hash_NamedCapture_EXISTS, NULL},
1530 {"Tie::Hash::NamedCapture::FIRSTKEY", XS_Tie_Hash_NamedCapture_FIRSTK, NULL},
1531 {"Tie::Hash::NamedCapture::NEXTKEY", XS_Tie_Hash_NamedCapture_NEXTK, NULL},
1532 {"Tie::Hash::NamedCapture::SCALAR", XS_Tie_Hash_NamedCapture_SCALAR, NULL},
1533 {"Tie::Hash::NamedCapture::flags", XS_Tie_Hash_NamedCapture_flags, NULL}
1534};
1535
1536void
1537Perl_boot_core_UNIVERSAL(pTHX)
1538{
1539 dVAR;
1540 static const char file[] = __FILE__;
1541 struct xsub_details *xsub = details;
1542 const struct xsub_details *end
1543 = details + sizeof(details) / sizeof(details[0]);
1544
1545 do {
1546 newXS_flags(xsub->name, xsub->xsub, file, xsub->proto, 0);
1547 } while (++xsub < end);
1548
1549 /* register the overloading (type 'A') magic */
1550 PL_amagic_generation++;
1551
1552 /* Providing a Regexp::DESTROY fixes #21347. See test in t/op/ref.t */
1553 CvFILE(newCONSTSUB(get_hv("Regexp::", GV_ADD), "DESTROY", NULL))
1554 = (char *)file;
1555}
80305961 1556
241d1a3b
NC
1557/*
1558 * Local variables:
1559 * c-indentation-style: bsd
1560 * c-basic-offset: 4
1561 * indent-tabs-mode: t
1562 * End:
1563 *
37442d52
RGS
1564 * ex: set ts=8 sts=4 sw=4 noet:
1565 */