Commit | Line | Data |
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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 | |
486ec47a | 24 | * clever to move them to separate XS files which would then be pulled |
192b9cd1 | 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 | ||
6d4a7be2 | 36 | /* |
37 | * Contributed by Graham Barr <Graham.Barr@tiuk.ti.com> | |
38 | * The main guts of traverse_isa was actually copied from gv_fetchmeth | |
39 | */ | |
40 | ||
a9ec700e | 41 | STATIC bool |
c7abbf64 | 42 | S_isa_lookup(pTHX_ HV *stash, const char * const name, STRLEN len, U32 flags) |
6d4a7be2 | 43 | { |
97aff369 | 44 | dVAR; |
a49ba3fc | 45 | const struct mro_meta *const meta = HvMROMETA(stash); |
4340b386 | 46 | HV *isa = meta->isa; |
a49ba3fc | 47 | const HV *our_stash; |
6d4a7be2 | 48 | |
7918f24d NC |
49 | PERL_ARGS_ASSERT_ISA_LOOKUP; |
50 | ||
4340b386 FC |
51 | if (!isa) { |
52 | (void)mro_get_linear_isa(stash); | |
53 | isa = meta->isa; | |
54 | } | |
55 | ||
c7abbf64 | 56 | if (hv_common(isa, NULL, name, len, ( flags & SVf_UTF8 ? HVhek_UTF8 : 0), |
a49ba3fc NC |
57 | HV_FETCH_ISEXISTS, NULL, 0)) { |
58 | /* Direct name lookup worked. */ | |
a9ec700e | 59 | return TRUE; |
a49ba3fc | 60 | } |
6d4a7be2 | 61 | |
a49ba3fc | 62 | /* A stash/class can go by many names (ie. User == main::User), so |
81a5123c FC |
63 | we use the HvENAME in the stash itself, which is canonical, falling |
64 | back to HvNAME if necessary. */ | |
c7abbf64 | 65 | our_stash = gv_stashpvn(name, len, flags); |
a49ba3fc NC |
66 | |
67 | if (our_stash) { | |
81a5123c FC |
68 | HEK *canon_name = HvENAME_HEK(our_stash); |
69 | if (!canon_name) canon_name = HvNAME_HEK(our_stash); | |
a1d407e8 | 70 | |
a49ba3fc NC |
71 | if (hv_common(isa, NULL, HEK_KEY(canon_name), HEK_LEN(canon_name), |
72 | HEK_FLAGS(canon_name), | |
73 | HV_FETCH_ISEXISTS, NULL, HEK_HASH(canon_name))) { | |
e1a479c5 | 74 | return TRUE; |
a49ba3fc | 75 | } |
6d4a7be2 | 76 | } |
77 | ||
a9ec700e | 78 | return FALSE; |
6d4a7be2 | 79 | } |
80 | ||
954c1994 | 81 | /* |
ccfc67b7 JH |
82 | =head1 SV Manipulation Functions |
83 | ||
c7abbf64 | 84 | =for apidoc sv_derived_from_pvn |
954c1994 | 85 | |
6885da0e | 86 | Returns a boolean indicating whether the SV is derived from the specified class |
87 | I<at the C level>. To check derivation at the Perl level, call C<isa()> as a | |
88 | normal Perl method. | |
954c1994 | 89 | |
c7abbf64 BF |
90 | Currently, the only significant value for C<flags> is SVf_UTF8. |
91 | ||
92 | =cut | |
93 | ||
94 | =for apidoc sv_derived_from_sv | |
95 | ||
96 | Exactly like L</sv_derived_from_pvn>, but takes the name string in the form | |
97 | of an SV instead of a string/length pair. | |
98 | ||
99 | =cut | |
100 | ||
101 | */ | |
102 | ||
103 | bool | |
104 | Perl_sv_derived_from_sv(pTHX_ SV *sv, SV *namesv, U32 flags) | |
105 | { | |
106 | char *namepv; | |
107 | STRLEN namelen; | |
108 | PERL_ARGS_ASSERT_SV_DERIVED_FROM_SV; | |
109 | namepv = SvPV(namesv, namelen); | |
110 | if (SvUTF8(namesv)) | |
111 | flags |= SVf_UTF8; | |
112 | return sv_derived_from_pvn(sv, namepv, namelen, flags); | |
113 | } | |
114 | ||
115 | /* | |
116 | =for apidoc sv_derived_from | |
117 | ||
118 | Exactly like L</sv_derived_from_pv>, but doesn't take a C<flags> parameter. | |
119 | ||
954c1994 GS |
120 | =cut |
121 | */ | |
122 | ||
55497cff | 123 | bool |
15f169a1 | 124 | Perl_sv_derived_from(pTHX_ SV *sv, const char *const name) |
55497cff | 125 | { |
c7abbf64 BF |
126 | PERL_ARGS_ASSERT_SV_DERIVED_FROM; |
127 | return sv_derived_from_pvn(sv, name, strlen(name), 0); | |
128 | } | |
129 | ||
130 | /* | |
131 | =for apidoc sv_derived_from_pv | |
132 | ||
133 | Exactly like L</sv_derived_from_pvn>, but takes a nul-terminated string | |
134 | instead of a string/length pair. | |
135 | ||
136 | =cut | |
137 | */ | |
138 | ||
139 | ||
140 | bool | |
141 | Perl_sv_derived_from_pv(pTHX_ SV *sv, const char *const name, U32 flags) | |
142 | { | |
143 | PERL_ARGS_ASSERT_SV_DERIVED_FROM_PV; | |
144 | return sv_derived_from_pvn(sv, name, strlen(name), flags); | |
145 | } | |
146 | ||
147 | bool | |
148 | Perl_sv_derived_from_pvn(pTHX_ SV *sv, const char *const name, const STRLEN len, U32 flags) | |
149 | { | |
97aff369 | 150 | dVAR; |
0b6f4f5c | 151 | HV *stash; |
46e4b22b | 152 | |
c7abbf64 | 153 | PERL_ARGS_ASSERT_SV_DERIVED_FROM_PVN; |
7918f24d | 154 | |
5b295bef | 155 | SvGETMAGIC(sv); |
55497cff | 156 | |
c7abbf64 | 157 | if (SvROK(sv)) { /* hugdo: */ |
0b6f4f5c | 158 | const char *type; |
55497cff | 159 | sv = SvRV(sv); |
160 | type = sv_reftype(sv,0); | |
0b6f4f5c AL |
161 | if (type && strEQ(type,name)) |
162 | return TRUE; | |
163 | stash = SvOBJECT(sv) ? SvSTASH(sv) : NULL; | |
55497cff | 164 | } |
165 | else { | |
da51bb9b | 166 | stash = gv_stashsv(sv, 0); |
55497cff | 167 | } |
46e4b22b | 168 | |
c7abbf64 | 169 | return stash ? isa_lookup(stash, name, len, flags) : FALSE; |
55497cff | 170 | } |
171 | ||
cbc021f9 | 172 | /* |
d20c2c29 | 173 | =for apidoc sv_does_sv |
cbc021f9 | 174 | |
175 | Returns a boolean indicating whether the SV performs a specific, named role. | |
176 | The SV can be a Perl object or the name of a Perl class. | |
177 | ||
178 | =cut | |
179 | */ | |
180 | ||
1b026014 NIS |
181 | #include "XSUB.h" |
182 | ||
cbc021f9 | 183 | bool |
f778bcfd | 184 | Perl_sv_does_sv(pTHX_ SV *sv, SV *namesv, U32 flags) |
cbc021f9 | 185 | { |
f778bcfd | 186 | SV *classname; |
cbc021f9 | 187 | bool does_it; |
59e7186f | 188 | SV *methodname; |
cbc021f9 | 189 | dSP; |
7918f24d | 190 | |
f778bcfd BF |
191 | PERL_ARGS_ASSERT_SV_DOES_SV; |
192 | PERL_UNUSED_ARG(flags); | |
7918f24d | 193 | |
cbc021f9 | 194 | ENTER; |
195 | SAVETMPS; | |
196 | ||
197 | SvGETMAGIC(sv); | |
198 | ||
199 | if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) | |
7ce46f2a GG |
200 | || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) { |
201 | LEAVE; | |
cbc021f9 | 202 | return FALSE; |
7ce46f2a | 203 | } |
cbc021f9 | 204 | |
205 | if (sv_isobject(sv)) { | |
f778bcfd | 206 | classname = sv_ref(NULL,SvRV(sv),TRUE); |
cbc021f9 | 207 | } else { |
f778bcfd | 208 | classname = sv; |
cbc021f9 | 209 | } |
210 | ||
f778bcfd | 211 | if (sv_eq(classname, namesv)) { |
7ce46f2a | 212 | LEAVE; |
cbc021f9 | 213 | return TRUE; |
7ce46f2a | 214 | } |
cbc021f9 | 215 | |
216 | PUSHMARK(SP); | |
f778bcfd BF |
217 | EXTEND(SP, 2); |
218 | PUSHs(sv); | |
219 | PUSHs(namesv); | |
cbc021f9 | 220 | PUTBACK; |
221 | ||
84bafc02 | 222 | methodname = newSVpvs_flags("isa", SVs_TEMP); |
59e7186f RGS |
223 | /* ugly hack: use the SvSCREAM flag so S_method_common |
224 | * can figure out we're calling DOES() and not isa(), | |
225 | * and report eventual errors correctly. --rgs */ | |
226 | SvSCREAM_on(methodname); | |
227 | call_sv(methodname, G_SCALAR | G_METHOD); | |
cbc021f9 | 228 | SPAGAIN; |
229 | ||
230 | does_it = SvTRUE( TOPs ); | |
231 | FREETMPS; | |
232 | LEAVE; | |
233 | ||
234 | return does_it; | |
235 | } | |
236 | ||
afa74d42 | 237 | /* |
f778bcfd BF |
238 | =for apidoc sv_does |
239 | ||
d20c2c29 | 240 | Like L</sv_does_pv>, but doesn't take a C<flags> parameter. |
f778bcfd BF |
241 | |
242 | =cut | |
243 | */ | |
244 | ||
245 | bool | |
246 | Perl_sv_does(pTHX_ SV *sv, const char *const name) | |
247 | { | |
248 | PERL_ARGS_ASSERT_SV_DOES; | |
249 | return sv_does_sv(sv, newSVpvn_flags(name, strlen(name), SVs_TEMP), 0); | |
250 | } | |
251 | ||
252 | /* | |
253 | =for apidoc sv_does_pv | |
254 | ||
7d892b8c | 255 | Like L</sv_does_sv>, but takes a nul-terminated string instead of an SV. |
f778bcfd BF |
256 | |
257 | =cut | |
258 | */ | |
259 | ||
260 | ||
261 | bool | |
262 | Perl_sv_does_pv(pTHX_ SV *sv, const char *const name, U32 flags) | |
263 | { | |
264 | PERL_ARGS_ASSERT_SV_DOES_PV; | |
265 | return sv_does_sv(sv, newSVpvn_flags(name, strlen(name), SVs_TEMP | flags), flags); | |
266 | } | |
267 | ||
7d892b8c FC |
268 | /* |
269 | =for apidoc sv_does_pvn | |
270 | ||
271 | Like L</sv_does_sv>, but takes a string/length pair instead of an SV. | |
272 | ||
273 | =cut | |
274 | */ | |
275 | ||
f778bcfd BF |
276 | bool |
277 | Perl_sv_does_pvn(pTHX_ SV *sv, const char *const name, const STRLEN len, U32 flags) | |
278 | { | |
279 | PERL_ARGS_ASSERT_SV_DOES_PVN; | |
280 | ||
281 | return sv_does_sv(sv, newSVpvn_flags(name, len, flags | SVs_TEMP), flags); | |
282 | } | |
283 | ||
284 | /* | |
afa74d42 NC |
285 | =for apidoc croak_xs_usage |
286 | ||
287 | A specialised variant of C<croak()> for emitting the usage message for xsubs | |
288 | ||
289 | croak_xs_usage(cv, "eee_yow"); | |
290 | ||
291 | works out the package name and subroutine name from C<cv>, and then calls | |
292 | C<croak()>. Hence if C<cv> is C<&ouch::awk>, it would call C<croak> as: | |
293 | ||
58cb15b3 | 294 | Perl_croak(aTHX_ "Usage: %"SVf"::%"SVf"(%s)", "ouch" "awk", "eee_yow"); |
afa74d42 NC |
295 | |
296 | =cut | |
297 | */ | |
298 | ||
299 | void | |
300 | Perl_croak_xs_usage(pTHX_ const CV *const cv, const char *const params) | |
301 | { | |
302 | const GV *const gv = CvGV(cv); | |
303 | ||
304 | PERL_ARGS_ASSERT_CROAK_XS_USAGE; | |
305 | ||
306 | if (gv) { | |
afa74d42 | 307 | const HV *const stash = GvSTASH(gv); |
afa74d42 | 308 | |
58cb15b3 | 309 | if (HvNAME_get(stash)) |
d0c0e7dd FC |
310 | Perl_croak(aTHX_ "Usage: %"HEKf"::%"HEKf"(%s)", |
311 | HEKfARG(HvNAME_HEK(stash)), | |
312 | HEKfARG(GvNAME_HEK(gv)), | |
58cb15b3 | 313 | params); |
afa74d42 | 314 | else |
d0c0e7dd FC |
315 | Perl_croak(aTHX_ "Usage: %"HEKf"(%s)", |
316 | HEKfARG(GvNAME_HEK(gv)), params); | |
afa74d42 NC |
317 | } else { |
318 | /* Pants. I don't think that it should be possible to get here. */ | |
93c51217 | 319 | Perl_croak(aTHX_ "Usage: CODE(0x%"UVxf")(%s)", PTR2UV(cv), params); |
afa74d42 NC |
320 | } |
321 | } | |
55497cff | 322 | |
6d4a7be2 | 323 | XS(XS_UNIVERSAL_isa) |
324 | { | |
97aff369 | 325 | dVAR; |
6d4a7be2 | 326 | dXSARGS; |
6d4a7be2 | 327 | |
328 | if (items != 2) | |
afa74d42 | 329 | croak_xs_usage(cv, "reference, kind"); |
c4420975 AL |
330 | else { |
331 | SV * const sv = ST(0); | |
6d4a7be2 | 332 | |
c4420975 | 333 | SvGETMAGIC(sv); |
d3f7f2b2 | 334 | |
c4420975 AL |
335 | if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) |
336 | || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) | |
337 | XSRETURN_UNDEF; | |
f8f70380 | 338 | |
c7abbf64 | 339 | ST(0) = boolSV(sv_derived_from_sv(sv, ST(1), 0)); |
c4420975 AL |
340 | XSRETURN(1); |
341 | } | |
6d4a7be2 | 342 | } |
343 | ||
6d4a7be2 | 344 | XS(XS_UNIVERSAL_can) |
345 | { | |
97aff369 | 346 | dVAR; |
6d4a7be2 | 347 | dXSARGS; |
348 | SV *sv; | |
6d4a7be2 | 349 | SV *rv; |
6f08146e | 350 | HV *pkg = NULL; |
6d4a7be2 | 351 | |
352 | if (items != 2) | |
afa74d42 | 353 | croak_xs_usage(cv, "object-ref, method"); |
6d4a7be2 | 354 | |
355 | sv = ST(0); | |
f8f70380 | 356 | |
5b295bef | 357 | SvGETMAGIC(sv); |
d3f7f2b2 | 358 | |
253ecd6d RGS |
359 | if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) |
360 | || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) | |
f8f70380 GS |
361 | XSRETURN_UNDEF; |
362 | ||
3280af22 | 363 | rv = &PL_sv_undef; |
6d4a7be2 | 364 | |
46e4b22b | 365 | if (SvROK(sv)) { |
daba3364 | 366 | sv = MUTABLE_SV(SvRV(sv)); |
46e4b22b | 367 | if (SvOBJECT(sv)) |
6f08146e NIS |
368 | pkg = SvSTASH(sv); |
369 | } | |
370 | else { | |
da51bb9b | 371 | pkg = gv_stashsv(sv, 0); |
6f08146e NIS |
372 | } |
373 | ||
374 | if (pkg) { | |
a00b390b | 375 | GV * const gv = gv_fetchmethod_sv_flags(pkg, ST(1), 0); |
dc848c6f | 376 | if (gv && isGV(gv)) |
daba3364 | 377 | rv = sv_2mortal(newRV(MUTABLE_SV(GvCV(gv)))); |
6d4a7be2 | 378 | } |
379 | ||
380 | ST(0) = rv; | |
381 | XSRETURN(1); | |
382 | } | |
383 | ||
cbc021f9 | 384 | XS(XS_UNIVERSAL_DOES) |
385 | { | |
386 | dVAR; | |
387 | dXSARGS; | |
58c0efa5 | 388 | PERL_UNUSED_ARG(cv); |
cbc021f9 | 389 | |
390 | if (items != 2) | |
46404226 | 391 | Perl_croak(aTHX_ "Usage: invocant->DOES(kind)"); |
cbc021f9 | 392 | else { |
393 | SV * const sv = ST(0); | |
f778bcfd | 394 | if (sv_does_sv( sv, ST(1), 0 )) |
cbc021f9 | 395 | XSRETURN_YES; |
396 | ||
397 | XSRETURN_NO; | |
398 | } | |
399 | } | |
400 | ||
6d4a7be2 | 401 | XS(XS_UNIVERSAL_VERSION) |
402 | { | |
97aff369 | 403 | dVAR; |
6d4a7be2 | 404 | dXSARGS; |
405 | HV *pkg; | |
406 | GV **gvp; | |
407 | GV *gv; | |
408 | SV *sv; | |
9bf41c1d | 409 | SV *ret; |
e1ec3a88 | 410 | const char *undef; |
58c0efa5 | 411 | PERL_UNUSED_ARG(cv); |
6d4a7be2 | 412 | |
1571675a | 413 | if (SvROK(ST(0))) { |
daba3364 | 414 | sv = MUTABLE_SV(SvRV(ST(0))); |
1571675a | 415 | if (!SvOBJECT(sv)) |
cea2e8a9 | 416 | Perl_croak(aTHX_ "Cannot find version of an unblessed reference"); |
6d4a7be2 | 417 | pkg = SvSTASH(sv); |
418 | } | |
419 | else { | |
da51bb9b | 420 | pkg = gv_stashsv(ST(0), 0); |
6d4a7be2 | 421 | } |
422 | ||
4608196e | 423 | gvp = pkg ? (GV**)hv_fetchs(pkg, "VERSION", FALSE) : NULL; |
6d4a7be2 | 424 | |
0008872a | 425 | if (gvp && isGV(gv = *gvp) && (sv = GvSV(gv)) && SvOK(sv)) { |
9bf41c1d FC |
426 | ret = sv_newmortal(); |
427 | sv_setsv(ret, sv); | |
c445ea15 | 428 | undef = NULL; |
6d4a7be2 | 429 | } |
430 | else { | |
9bf41c1d | 431 | sv = ret = &PL_sv_undef; |
6d4a7be2 | 432 | undef = "(undef)"; |
433 | } | |
434 | ||
1571675a | 435 | if (items > 1) { |
1571675a GS |
436 | SV *req = ST(1); |
437 | ||
62658f4d | 438 | if (undef) { |
bfcb3514 | 439 | if (pkg) { |
d0c0e7dd | 440 | const HEK * const name = HvNAME_HEK(pkg); |
a3b680e6 | 441 | Perl_croak(aTHX_ |
d0c0e7dd FC |
442 | "%"HEKf" does not define $%"HEKf |
443 | "::VERSION--version check failed", | |
444 | HEKfARG(name), HEKfARG(name)); | |
bfcb3514 | 445 | } else { |
a3b680e6 | 446 | Perl_croak(aTHX_ |
ed1db70e BF |
447 | "%"SVf" defines neither package nor VERSION--version check failed", |
448 | SVfARG(ST(0)) ); | |
62658f4d PM |
449 | } |
450 | } | |
ad63d80f | 451 | |
9bf41c1d FC |
452 | if ( !sv_derived_from(sv, "version")) |
453 | upg_version(sv, FALSE); | |
454 | ||
137d6fc0 JP |
455 | if ( !sv_derived_from(req, "version")) { |
456 | /* req may very well be R/O, so create a new object */ | |
ac0e6a2f | 457 | req = sv_2mortal( new_version(req) ); |
137d6fc0 | 458 | } |
1571675a | 459 | |
ac0e6a2f | 460 | if ( vcmp( req, sv ) > 0 ) { |
ef8f7699 | 461 | if ( hv_exists(MUTABLE_HV(SvRV(req)), "qv", 2 ) ) { |
d0c0e7dd | 462 | Perl_croak(aTHX_ "%"HEKf" version %"SVf" required--" |
ed1db70e | 463 | "this is only version %"SVf"", |
d0c0e7dd | 464 | HEKfARG(HvNAME_HEK(pkg)), |
e3a22e3f GF |
465 | SVfARG(sv_2mortal(vnormal(req))), |
466 | SVfARG(sv_2mortal(vnormal(sv)))); | |
ac0e6a2f | 467 | } else { |
d0c0e7dd | 468 | Perl_croak(aTHX_ "%"HEKf" version %"SVf" required--" |
ed1db70e | 469 | "this is only version %"SVf, |
d0c0e7dd | 470 | HEKfARG(HvNAME_HEK(pkg)), |
e3a22e3f GF |
471 | SVfARG(sv_2mortal(vstringify(req))), |
472 | SVfARG(sv_2mortal(vstringify(sv)))); | |
ac0e6a2f RGS |
473 | } |
474 | } | |
475 | ||
2d8e6c8d | 476 | } |
6d4a7be2 | 477 | |
9bf41c1d | 478 | ST(0) = ret; |
6d4a7be2 | 479 | |
480 | XSRETURN(1); | |
481 | } | |
482 | ||
439cb1c4 JP |
483 | XS(XS_version_new) |
484 | { | |
97aff369 | 485 | dVAR; |
439cb1c4 | 486 | dXSARGS; |
129318bd | 487 | if (items > 3) |
afa74d42 | 488 | croak_xs_usage(cv, "class, version"); |
439cb1c4 JP |
489 | SP -= items; |
490 | { | |
137d6fc0 JP |
491 | SV *vs = ST(1); |
492 | SV *rv; | |
ed1db70e BF |
493 | STRLEN len; |
494 | const char *classname; | |
495 | U32 flags; | |
496 | if ( sv_isobject(ST(0)) ) { /* get the class if called as an object method */ | |
497 | const HV * stash = SvSTASH(SvRV(ST(0))); | |
498 | classname = HvNAME(stash); | |
499 | len = HvNAMELEN(stash); | |
500 | flags = HvNAMEUTF8(stash) ? SVf_UTF8 : 0; | |
501 | } | |
502 | else { | |
503 | classname = SvPV(ST(0), len); | |
504 | flags = SvUTF8(ST(0)); | |
505 | } | |
9137345a | 506 | |
91152fc1 | 507 | if ( items == 1 || ! SvOK(vs) ) { /* no param or explicit undef */ |
92dcf8ce JP |
508 | /* create empty object */ |
509 | vs = sv_newmortal(); | |
be5574c0 | 510 | sv_setpvs(vs, "0"); |
9137345a JP |
511 | } |
512 | else if ( items == 3 ) { | |
513 | vs = sv_newmortal(); | |
cfd0369c | 514 | Perl_sv_setpvf(aTHX_ vs,"v%s",SvPV_nolen_const(ST(2))); |
129318bd | 515 | } |
439cb1c4 | 516 | |
137d6fc0 | 517 | rv = new_version(vs); |
ed1db70e BF |
518 | if ( strnNE(classname,"version", len) ) /* inherited new() */ |
519 | sv_bless(rv, gv_stashpvn(classname, len, GV_ADD | flags)); | |
137d6fc0 | 520 | |
6e449a3a | 521 | mPUSHs(rv); |
439cb1c4 JP |
522 | PUTBACK; |
523 | return; | |
524 | } | |
525 | } | |
526 | ||
527 | XS(XS_version_stringify) | |
528 | { | |
97aff369 | 529 | dVAR; |
41be1fbd JH |
530 | dXSARGS; |
531 | if (items < 1) | |
afa74d42 | 532 | croak_xs_usage(cv, "lobj, ..."); |
41be1fbd JH |
533 | SP -= items; |
534 | { | |
d808b681 | 535 | SV * lobj = ST(0); |
41be1fbd | 536 | |
d808b681 JP |
537 | if (sv_derived_from(lobj, "version") && SvROK(lobj)) { |
538 | lobj = SvRV(lobj); | |
41be1fbd JH |
539 | } |
540 | else | |
541 | Perl_croak(aTHX_ "lobj is not of type version"); | |
542 | ||
6e449a3a | 543 | mPUSHs(vstringify(lobj)); |
41be1fbd JH |
544 | |
545 | PUTBACK; | |
546 | return; | |
547 | } | |
439cb1c4 JP |
548 | } |
549 | ||
550 | XS(XS_version_numify) | |
551 | { | |
97aff369 | 552 | dVAR; |
41be1fbd JH |
553 | dXSARGS; |
554 | if (items < 1) | |
afa74d42 | 555 | croak_xs_usage(cv, "lobj, ..."); |
41be1fbd JH |
556 | SP -= items; |
557 | { | |
d808b681 | 558 | SV * lobj = ST(0); |
41be1fbd | 559 | |
d808b681 JP |
560 | if (sv_derived_from(lobj, "version") && SvROK(lobj)) { |
561 | lobj = SvRV(lobj); | |
41be1fbd JH |
562 | } |
563 | else | |
564 | Perl_croak(aTHX_ "lobj is not of type version"); | |
565 | ||
6e449a3a | 566 | mPUSHs(vnumify(lobj)); |
41be1fbd JH |
567 | |
568 | PUTBACK; | |
569 | return; | |
570 | } | |
439cb1c4 JP |
571 | } |
572 | ||
9137345a JP |
573 | XS(XS_version_normal) |
574 | { | |
97aff369 | 575 | dVAR; |
9137345a JP |
576 | dXSARGS; |
577 | if (items < 1) | |
afa74d42 | 578 | croak_xs_usage(cv, "lobj, ..."); |
9137345a JP |
579 | SP -= items; |
580 | { | |
d808b681 | 581 | SV * lobj = ST(0); |
9137345a | 582 | |
d808b681 JP |
583 | if (sv_derived_from(lobj, "version") && SvROK(lobj)) { |
584 | lobj = SvRV(lobj); | |
9137345a JP |
585 | } |
586 | else | |
587 | Perl_croak(aTHX_ "lobj is not of type version"); | |
588 | ||
6e449a3a | 589 | mPUSHs(vnormal(lobj)); |
9137345a JP |
590 | |
591 | PUTBACK; | |
592 | return; | |
593 | } | |
594 | } | |
595 | ||
439cb1c4 JP |
596 | XS(XS_version_vcmp) |
597 | { | |
97aff369 | 598 | dVAR; |
41be1fbd JH |
599 | dXSARGS; |
600 | if (items < 1) | |
afa74d42 | 601 | croak_xs_usage(cv, "lobj, ..."); |
41be1fbd JH |
602 | SP -= items; |
603 | { | |
d808b681 | 604 | SV * lobj = ST(0); |
41be1fbd | 605 | |
d808b681 JP |
606 | if (sv_derived_from(lobj, "version") && SvROK(lobj)) { |
607 | lobj = SvRV(lobj); | |
41be1fbd JH |
608 | } |
609 | else | |
610 | Perl_croak(aTHX_ "lobj is not of type version"); | |
611 | ||
612 | { | |
613 | SV *rs; | |
614 | SV *rvs; | |
615 | SV * robj = ST(1); | |
7452cf6a | 616 | const IV swap = (IV)SvIV(ST(2)); |
41be1fbd JH |
617 | |
618 | if ( ! sv_derived_from(robj, "version") ) | |
619 | { | |
e3a22e3f GF |
620 | robj = new_version(SvOK(robj) ? robj : newSVpvs_flags("0", SVs_TEMP)); |
621 | sv_2mortal(robj); | |
41be1fbd JH |
622 | } |
623 | rvs = SvRV(robj); | |
624 | ||
625 | if ( swap ) | |
626 | { | |
627 | rs = newSViv(vcmp(rvs,lobj)); | |
628 | } | |
629 | else | |
630 | { | |
631 | rs = newSViv(vcmp(lobj,rvs)); | |
632 | } | |
633 | ||
6e449a3a | 634 | mPUSHs(rs); |
41be1fbd JH |
635 | } |
636 | ||
637 | PUTBACK; | |
638 | return; | |
639 | } | |
439cb1c4 JP |
640 | } |
641 | ||
642 | XS(XS_version_boolean) | |
643 | { | |
97aff369 JH |
644 | dVAR; |
645 | dXSARGS; | |
646 | if (items < 1) | |
afa74d42 | 647 | croak_xs_usage(cv, "lobj, ..."); |
97aff369 | 648 | SP -= items; |
d808b681 | 649 | if (sv_derived_from(ST(0), "version") && SvROK(ST(0))) { |
c4420975 | 650 | SV * const lobj = SvRV(ST(0)); |
396482e1 | 651 | SV * const rs = newSViv( vcmp(lobj,new_version(newSVpvs("0"))) ); |
6e449a3a | 652 | mPUSHs(rs); |
c4420975 AL |
653 | PUTBACK; |
654 | return; | |
655 | } | |
656 | else | |
657 | Perl_croak(aTHX_ "lobj is not of type version"); | |
439cb1c4 JP |
658 | } |
659 | ||
660 | XS(XS_version_noop) | |
661 | { | |
97aff369 | 662 | dVAR; |
2dfd8427 AL |
663 | dXSARGS; |
664 | if (items < 1) | |
afa74d42 | 665 | croak_xs_usage(cv, "lobj, ..."); |
d808b681 | 666 | if (sv_derived_from(ST(0), "version") && SvROK(ST(0))) |
2dfd8427 AL |
667 | Perl_croak(aTHX_ "operation not supported with version object"); |
668 | else | |
669 | Perl_croak(aTHX_ "lobj is not of type version"); | |
670 | #ifndef HASATTRIBUTE_NORETURN | |
671 | XSRETURN_EMPTY; | |
672 | #endif | |
439cb1c4 JP |
673 | } |
674 | ||
c8d69e4a JP |
675 | XS(XS_version_is_alpha) |
676 | { | |
97aff369 | 677 | dVAR; |
c8d69e4a JP |
678 | dXSARGS; |
679 | if (items != 1) | |
afa74d42 | 680 | croak_xs_usage(cv, "lobj"); |
c8d69e4a | 681 | SP -= items; |
d808b681 | 682 | if (sv_derived_from(ST(0), "version") && SvROK(ST(0))) { |
c4420975 | 683 | SV * const lobj = ST(0); |
ef8f7699 | 684 | if ( hv_exists(MUTABLE_HV(SvRV(lobj)), "alpha", 5 ) ) |
c4420975 AL |
685 | XSRETURN_YES; |
686 | else | |
687 | XSRETURN_NO; | |
c8d69e4a JP |
688 | PUTBACK; |
689 | return; | |
690 | } | |
c4420975 AL |
691 | else |
692 | Perl_croak(aTHX_ "lobj is not of type version"); | |
c8d69e4a JP |
693 | } |
694 | ||
137d6fc0 JP |
695 | XS(XS_version_qv) |
696 | { | |
97aff369 | 697 | dVAR; |
137d6fc0 | 698 | dXSARGS; |
4ed3fda4 | 699 | PERL_UNUSED_ARG(cv); |
137d6fc0 JP |
700 | SP -= items; |
701 | { | |
f941e658 JP |
702 | SV * ver = ST(0); |
703 | SV * rv; | |
ed1db70e BF |
704 | STRLEN len = 0; |
705 | const char * classname = ""; | |
706 | U32 flags = 0; | |
707 | if ( items == 2 && SvOK(ST(1)) ) { | |
708 | ver = ST(1); | |
709 | if ( sv_isobject(ST(0)) ) { /* class called as an object method */ | |
710 | const HV * stash = SvSTASH(SvRV(ST(0))); | |
711 | classname = HvNAME(stash); | |
712 | len = HvNAMELEN(stash); | |
713 | flags = HvNAMEUTF8(stash) ? SVf_UTF8 : 0; | |
714 | } | |
715 | else { | |
716 | classname = SvPV(ST(0), len); | |
717 | flags = SvUTF8(ST(0)); | |
718 | } | |
719 | } | |
f941e658 JP |
720 | if ( !SvVOK(ver) ) { /* not already a v-string */ |
721 | rv = sv_newmortal(); | |
ac0e6a2f RGS |
722 | sv_setsv(rv,ver); /* make a duplicate */ |
723 | upg_version(rv, TRUE); | |
f941e658 JP |
724 | } else { |
725 | rv = sv_2mortal(new_version(ver)); | |
137d6fc0 | 726 | } |
ed1db70e BF |
727 | if ( items == 2 |
728 | && strnNE(classname,"version", len) ) { /* inherited new() */ | |
729 | sv_bless(rv, gv_stashpvn(classname, len, GV_ADD | flags)); | |
730 | } | |
f941e658 JP |
731 | PUSHs(rv); |
732 | } | |
733 | PUTBACK; | |
734 | return; | |
735 | } | |
137d6fc0 | 736 | |
f941e658 JP |
737 | XS(XS_version_is_qv) |
738 | { | |
739 | dVAR; | |
740 | dXSARGS; | |
741 | if (items != 1) | |
742 | croak_xs_usage(cv, "lobj"); | |
743 | SP -= items; | |
d808b681 | 744 | if (sv_derived_from(ST(0), "version") && SvROK(ST(0))) { |
f941e658 JP |
745 | SV * const lobj = ST(0); |
746 | if ( hv_exists(MUTABLE_HV(SvRV(lobj)), "qv", 2 ) ) | |
747 | XSRETURN_YES; | |
748 | else | |
749 | XSRETURN_NO; | |
137d6fc0 JP |
750 | PUTBACK; |
751 | return; | |
752 | } | |
f941e658 JP |
753 | else |
754 | Perl_croak(aTHX_ "lobj is not of type version"); | |
137d6fc0 JP |
755 | } |
756 | ||
8800c35a JH |
757 | XS(XS_utf8_is_utf8) |
758 | { | |
97aff369 | 759 | dVAR; |
41be1fbd JH |
760 | dXSARGS; |
761 | if (items != 1) | |
afa74d42 | 762 | croak_xs_usage(cv, "sv"); |
c4420975 | 763 | else { |
76f73021 GF |
764 | SV * const sv = ST(0); |
765 | SvGETMAGIC(sv); | |
c4420975 AL |
766 | if (SvUTF8(sv)) |
767 | XSRETURN_YES; | |
768 | else | |
769 | XSRETURN_NO; | |
41be1fbd JH |
770 | } |
771 | XSRETURN_EMPTY; | |
8800c35a JH |
772 | } |
773 | ||
1b026014 NIS |
774 | XS(XS_utf8_valid) |
775 | { | |
97aff369 | 776 | dVAR; |
41be1fbd JH |
777 | dXSARGS; |
778 | if (items != 1) | |
afa74d42 | 779 | croak_xs_usage(cv, "sv"); |
c4420975 AL |
780 | else { |
781 | SV * const sv = ST(0); | |
782 | STRLEN len; | |
783 | const char * const s = SvPV_const(sv,len); | |
784 | if (!SvUTF8(sv) || is_utf8_string((const U8*)s,len)) | |
785 | XSRETURN_YES; | |
786 | else | |
787 | XSRETURN_NO; | |
788 | } | |
41be1fbd | 789 | XSRETURN_EMPTY; |
1b026014 NIS |
790 | } |
791 | ||
792 | XS(XS_utf8_encode) | |
793 | { | |
97aff369 | 794 | dVAR; |
1b026014 NIS |
795 | dXSARGS; |
796 | if (items != 1) | |
afa74d42 | 797 | croak_xs_usage(cv, "sv"); |
c4420975 | 798 | sv_utf8_encode(ST(0)); |
1b026014 NIS |
799 | XSRETURN_EMPTY; |
800 | } | |
801 | ||
802 | XS(XS_utf8_decode) | |
803 | { | |
97aff369 | 804 | dVAR; |
1b026014 NIS |
805 | dXSARGS; |
806 | if (items != 1) | |
afa74d42 | 807 | croak_xs_usage(cv, "sv"); |
c4420975 AL |
808 | else { |
809 | SV * const sv = ST(0); | |
b2b7346b FC |
810 | bool RETVAL; |
811 | if (SvIsCOW(sv)) sv_force_normal(sv); | |
812 | RETVAL = sv_utf8_decode(sv); | |
1b026014 | 813 | ST(0) = boolSV(RETVAL); |
1b026014 NIS |
814 | } |
815 | XSRETURN(1); | |
816 | } | |
817 | ||
818 | XS(XS_utf8_upgrade) | |
819 | { | |
97aff369 | 820 | dVAR; |
1b026014 NIS |
821 | dXSARGS; |
822 | if (items != 1) | |
afa74d42 | 823 | croak_xs_usage(cv, "sv"); |
c4420975 AL |
824 | else { |
825 | SV * const sv = ST(0); | |
1b026014 NIS |
826 | STRLEN RETVAL; |
827 | dXSTARG; | |
828 | ||
829 | RETVAL = sv_utf8_upgrade(sv); | |
830 | XSprePUSH; PUSHi((IV)RETVAL); | |
831 | } | |
832 | XSRETURN(1); | |
833 | } | |
834 | ||
835 | XS(XS_utf8_downgrade) | |
836 | { | |
97aff369 | 837 | dVAR; |
1b026014 NIS |
838 | dXSARGS; |
839 | if (items < 1 || items > 2) | |
afa74d42 | 840 | croak_xs_usage(cv, "sv, failok=0"); |
c4420975 AL |
841 | else { |
842 | SV * const sv = ST(0); | |
6867be6d AL |
843 | const bool failok = (items < 2) ? 0 : (int)SvIV(ST(1)); |
844 | const bool RETVAL = sv_utf8_downgrade(sv, failok); | |
1b026014 | 845 | |
1b026014 | 846 | ST(0) = boolSV(RETVAL); |
1b026014 NIS |
847 | } |
848 | XSRETURN(1); | |
849 | } | |
850 | ||
851 | XS(XS_utf8_native_to_unicode) | |
852 | { | |
97aff369 | 853 | dVAR; |
1b026014 | 854 | dXSARGS; |
6867be6d | 855 | const UV uv = SvUV(ST(0)); |
b7953727 JH |
856 | |
857 | if (items > 1) | |
afa74d42 | 858 | croak_xs_usage(cv, "sv"); |
b7953727 | 859 | |
1b026014 NIS |
860 | ST(0) = sv_2mortal(newSViv(NATIVE_TO_UNI(uv))); |
861 | XSRETURN(1); | |
862 | } | |
863 | ||
864 | XS(XS_utf8_unicode_to_native) | |
865 | { | |
97aff369 | 866 | dVAR; |
1b026014 | 867 | dXSARGS; |
6867be6d | 868 | const UV uv = SvUV(ST(0)); |
b7953727 JH |
869 | |
870 | if (items > 1) | |
afa74d42 | 871 | croak_xs_usage(cv, "sv"); |
b7953727 | 872 | |
1b026014 NIS |
873 | ST(0) = sv_2mortal(newSViv(UNI_TO_NATIVE(uv))); |
874 | XSRETURN(1); | |
875 | } | |
876 | ||
14a976d6 | 877 | XS(XS_Internals_SvREADONLY) /* This is dangerous stuff. */ |
29569577 | 878 | { |
97aff369 | 879 | dVAR; |
29569577 | 880 | dXSARGS; |
80b6a949 AB |
881 | SV * const svz = ST(0); |
882 | SV * sv; | |
58c0efa5 | 883 | PERL_UNUSED_ARG(cv); |
6867be6d | 884 | |
80b6a949 AB |
885 | /* [perl #77776] - called as &foo() not foo() */ |
886 | if (!SvROK(svz)) | |
887 | croak_xs_usage(cv, "SCALAR[, ON]"); | |
888 | ||
889 | sv = SvRV(svz); | |
890 | ||
29569577 | 891 | if (items == 1) { |
3e89ba19 | 892 | if (SvREADONLY(sv) && !SvIsCOW(sv)) |
29569577 JH |
893 | XSRETURN_YES; |
894 | else | |
895 | XSRETURN_NO; | |
896 | } | |
897 | else if (items == 2) { | |
898 | if (SvTRUE(ST(1))) { | |
3e89ba19 | 899 | if (SvIsCOW(sv)) sv_force_normal(sv); |
29569577 JH |
900 | SvREADONLY_on(sv); |
901 | XSRETURN_YES; | |
902 | } | |
903 | else { | |
14a976d6 | 904 | /* I hope you really know what you are doing. */ |
3e89ba19 | 905 | if (!SvIsCOW(sv)) SvREADONLY_off(sv); |
29569577 JH |
906 | XSRETURN_NO; |
907 | } | |
908 | } | |
14a976d6 | 909 | XSRETURN_UNDEF; /* Can't happen. */ |
29569577 JH |
910 | } |
911 | ||
14a976d6 | 912 | XS(XS_Internals_SvREFCNT) /* This is dangerous stuff. */ |
29569577 | 913 | { |
97aff369 | 914 | dVAR; |
29569577 | 915 | dXSARGS; |
80b6a949 AB |
916 | SV * const svz = ST(0); |
917 | SV * sv; | |
58c0efa5 | 918 | PERL_UNUSED_ARG(cv); |
6867be6d | 919 | |
80b6a949 AB |
920 | /* [perl #77776] - called as &foo() not foo() */ |
921 | if (!SvROK(svz)) | |
922 | croak_xs_usage(cv, "SCALAR[, REFCOUNT]"); | |
923 | ||
924 | sv = SvRV(svz); | |
925 | ||
29569577 | 926 | if (items == 1) |
14a976d6 | 927 | XSRETURN_IV(SvREFCNT(sv) - 1); /* Minus the ref created for us. */ |
29569577 | 928 | else if (items == 2) { |
14a976d6 | 929 | /* I hope you really know what you are doing. */ |
29569577 JH |
930 | SvREFCNT(sv) = SvIV(ST(1)); |
931 | XSRETURN_IV(SvREFCNT(sv)); | |
932 | } | |
14a976d6 | 933 | XSRETURN_UNDEF; /* Can't happen. */ |
29569577 JH |
934 | } |
935 | ||
f044d0d1 | 936 | XS(XS_Internals_hv_clear_placehold) |
dfd4ef2f | 937 | { |
97aff369 | 938 | dVAR; |
dfd4ef2f | 939 | dXSARGS; |
6867be6d | 940 | |
80b6a949 | 941 | if (items != 1 || !SvROK(ST(0))) |
afa74d42 | 942 | croak_xs_usage(cv, "hv"); |
c4420975 | 943 | else { |
ef8f7699 | 944 | HV * const hv = MUTABLE_HV(SvRV(ST(0))); |
c4420975 AL |
945 | hv_clear_placeholders(hv); |
946 | XSRETURN(0); | |
947 | } | |
dfd4ef2f | 948 | } |
39f7a870 JH |
949 | |
950 | XS(XS_PerlIO_get_layers) | |
951 | { | |
97aff369 | 952 | dVAR; |
39f7a870 JH |
953 | dXSARGS; |
954 | if (items < 1 || items % 2 == 0) | |
afa74d42 | 955 | croak_xs_usage(cv, "filehandle[,args]"); |
5fef3b4a | 956 | #ifdef USE_PERLIO |
39f7a870 JH |
957 | { |
958 | SV * sv; | |
959 | GV * gv; | |
960 | IO * io; | |
961 | bool input = TRUE; | |
962 | bool details = FALSE; | |
963 | ||
964 | if (items > 1) { | |
c4420975 | 965 | SV * const *svp; |
39f7a870 | 966 | for (svp = MARK + 2; svp <= SP; svp += 2) { |
c4420975 AL |
967 | SV * const * const varp = svp; |
968 | SV * const * const valp = svp + 1; | |
39f7a870 | 969 | STRLEN klen; |
c4420975 | 970 | const char * const key = SvPV_const(*varp, klen); |
39f7a870 JH |
971 | |
972 | switch (*key) { | |
973 | case 'i': | |
974 | if (klen == 5 && memEQ(key, "input", 5)) { | |
975 | input = SvTRUE(*valp); | |
976 | break; | |
977 | } | |
978 | goto fail; | |
979 | case 'o': | |
980 | if (klen == 6 && memEQ(key, "output", 6)) { | |
981 | input = !SvTRUE(*valp); | |
982 | break; | |
983 | } | |
984 | goto fail; | |
985 | case 'd': | |
986 | if (klen == 7 && memEQ(key, "details", 7)) { | |
987 | details = SvTRUE(*valp); | |
988 | break; | |
989 | } | |
990 | goto fail; | |
991 | default: | |
992 | fail: | |
993 | Perl_croak(aTHX_ | |
994 | "get_layers: unknown argument '%s'", | |
995 | key); | |
996 | } | |
997 | } | |
998 | ||
999 | SP -= (items - 1); | |
1000 | } | |
1001 | ||
1002 | sv = POPs; | |
159b6efe | 1003 | gv = MUTABLE_GV(sv); |
39f7a870 JH |
1004 | |
1005 | if (!isGV(sv)) { | |
1006 | if (SvROK(sv) && isGV(SvRV(sv))) | |
159b6efe | 1007 | gv = MUTABLE_GV(SvRV(sv)); |
671d49be | 1008 | else if (SvPOKp(sv)) |
f776e3cd | 1009 | gv = gv_fetchsv(sv, 0, SVt_PVIO); |
39f7a870 JH |
1010 | } |
1011 | ||
1012 | if (gv && (io = GvIO(gv))) { | |
c4420975 | 1013 | AV* const av = PerlIO_get_layers(aTHX_ input ? |
39f7a870 JH |
1014 | IoIFP(io) : IoOFP(io)); |
1015 | I32 i; | |
c4420975 | 1016 | const I32 last = av_len(av); |
39f7a870 JH |
1017 | I32 nitem = 0; |
1018 | ||
1019 | for (i = last; i >= 0; i -= 3) { | |
c4420975 AL |
1020 | SV * const * const namsvp = av_fetch(av, i - 2, FALSE); |
1021 | SV * const * const argsvp = av_fetch(av, i - 1, FALSE); | |
1022 | SV * const * const flgsvp = av_fetch(av, i, FALSE); | |
39f7a870 | 1023 | |
c4420975 AL |
1024 | const bool namok = namsvp && *namsvp && SvPOK(*namsvp); |
1025 | const bool argok = argsvp && *argsvp && SvPOK(*argsvp); | |
1026 | const bool flgok = flgsvp && *flgsvp && SvIOK(*flgsvp); | |
39f7a870 JH |
1027 | |
1028 | if (details) { | |
92e45a3e NC |
1029 | /* Indents of 5? Yuck. */ |
1030 | /* We know that PerlIO_get_layers creates a new SV for | |
1031 | the name and flags, so we can just take a reference | |
1032 | and "steal" it when we free the AV below. */ | |
ec3bab8e | 1033 | XPUSHs(namok |
92e45a3e | 1034 | ? sv_2mortal(SvREFCNT_inc_simple_NN(*namsvp)) |
ec3bab8e NC |
1035 | : &PL_sv_undef); |
1036 | XPUSHs(argok | |
92e45a3e NC |
1037 | ? newSVpvn_flags(SvPVX_const(*argsvp), |
1038 | SvCUR(*argsvp), | |
1039 | (SvUTF8(*argsvp) ? SVf_UTF8 : 0) | |
1040 | | SVs_TEMP) | |
1041 | : &PL_sv_undef); | |
96ccaf53 | 1042 | XPUSHs(flgok |
92e45a3e | 1043 | ? sv_2mortal(SvREFCNT_inc_simple_NN(*flgsvp)) |
ec3bab8e | 1044 | : &PL_sv_undef); |
39f7a870 JH |
1045 | nitem += 3; |
1046 | } | |
1047 | else { | |
1048 | if (namok && argok) | |
1eb9e81d | 1049 | XPUSHs(sv_2mortal(Perl_newSVpvf(aTHX_ "%"SVf"(%"SVf")", |
be2597df | 1050 | SVfARG(*namsvp), |
1eb9e81d | 1051 | SVfARG(*argsvp)))); |
39f7a870 | 1052 | else if (namok) |
92e45a3e | 1053 | XPUSHs(sv_2mortal(SvREFCNT_inc_simple_NN(*namsvp))); |
39f7a870 JH |
1054 | else |
1055 | XPUSHs(&PL_sv_undef); | |
1056 | nitem++; | |
1057 | if (flgok) { | |
c4420975 | 1058 | const IV flags = SvIVX(*flgsvp); |
39f7a870 JH |
1059 | |
1060 | if (flags & PERLIO_F_UTF8) { | |
84bafc02 | 1061 | XPUSHs(newSVpvs_flags("utf8", SVs_TEMP)); |
39f7a870 JH |
1062 | nitem++; |
1063 | } | |
1064 | } | |
1065 | } | |
1066 | } | |
1067 | ||
1068 | SvREFCNT_dec(av); | |
1069 | ||
1070 | XSRETURN(nitem); | |
1071 | } | |
1072 | } | |
5fef3b4a | 1073 | #endif |
39f7a870 JH |
1074 | |
1075 | XSRETURN(0); | |
1076 | } | |
1077 | ||
9a7034eb | 1078 | XS(XS_Internals_hash_seed) |
c910b28a | 1079 | { |
97aff369 | 1080 | dVAR; |
c85d3f85 NC |
1081 | /* Using dXSARGS would also have dITEM and dSP, |
1082 | * which define 2 unused local variables. */ | |
557b887a | 1083 | dAXMARK; |
53c1dcc0 | 1084 | PERL_UNUSED_ARG(cv); |
ad73156c | 1085 | PERL_UNUSED_VAR(mark); |
81eaca17 | 1086 | XSRETURN_UV(PERL_HASH_SEED); |
c910b28a JH |
1087 | } |
1088 | ||
008fb0c0 | 1089 | XS(XS_Internals_rehash_seed) |
8e90d776 | 1090 | { |
97aff369 | 1091 | dVAR; |
8e90d776 NC |
1092 | /* Using dXSARGS would also have dITEM and dSP, |
1093 | * which define 2 unused local variables. */ | |
557b887a | 1094 | dAXMARK; |
53c1dcc0 | 1095 | PERL_UNUSED_ARG(cv); |
ad73156c | 1096 | PERL_UNUSED_VAR(mark); |
008fb0c0 | 1097 | XSRETURN_UV(PL_rehash_seed); |
8e90d776 NC |
1098 | } |
1099 | ||
05619474 NC |
1100 | XS(XS_Internals_HvREHASH) /* Subject to change */ |
1101 | { | |
97aff369 | 1102 | dVAR; |
05619474 | 1103 | dXSARGS; |
93c51217 | 1104 | PERL_UNUSED_ARG(cv); |
05619474 | 1105 | if (SvROK(ST(0))) { |
ef8f7699 | 1106 | const HV * const hv = (const HV *) SvRV(ST(0)); |
05619474 NC |
1107 | if (items == 1 && SvTYPE(hv) == SVt_PVHV) { |
1108 | if (HvREHASH(hv)) | |
1109 | XSRETURN_YES; | |
1110 | else | |
1111 | XSRETURN_NO; | |
1112 | } | |
1113 | } | |
1114 | Perl_croak(aTHX_ "Internals::HvREHASH $hashref"); | |
1115 | } | |
241d1a3b | 1116 | |
80305961 YO |
1117 | XS(XS_re_is_regexp) |
1118 | { | |
1119 | dVAR; | |
1120 | dXSARGS; | |
f7e71195 AB |
1121 | PERL_UNUSED_VAR(cv); |
1122 | ||
80305961 | 1123 | if (items != 1) |
afa74d42 | 1124 | croak_xs_usage(cv, "sv"); |
f7e71195 | 1125 | |
f7e71195 AB |
1126 | if (SvRXOK(ST(0))) { |
1127 | XSRETURN_YES; | |
1128 | } else { | |
1129 | XSRETURN_NO; | |
80305961 YO |
1130 | } |
1131 | } | |
1132 | ||
192b9cd1 | 1133 | XS(XS_re_regnames_count) |
80305961 | 1134 | { |
192b9cd1 AB |
1135 | REGEXP *rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1136 | SV * ret; | |
80305961 YO |
1137 | dVAR; |
1138 | dXSARGS; | |
192b9cd1 AB |
1139 | |
1140 | if (items != 0) | |
afa74d42 | 1141 | croak_xs_usage(cv, ""); |
192b9cd1 AB |
1142 | |
1143 | SP -= items; | |
fdae9473 | 1144 | PUTBACK; |
192b9cd1 AB |
1145 | |
1146 | if (!rx) | |
1147 | XSRETURN_UNDEF; | |
1148 | ||
1149 | ret = CALLREG_NAMED_BUFF_COUNT(rx); | |
1150 | ||
1151 | SPAGAIN; | |
fdae9473 NC |
1152 | PUSHs(ret ? sv_2mortal(ret) : &PL_sv_undef); |
1153 | XSRETURN(1); | |
192b9cd1 AB |
1154 | } |
1155 | ||
1156 | XS(XS_re_regname) | |
1157 | { | |
1158 | dVAR; | |
1159 | dXSARGS; | |
1160 | REGEXP * rx; | |
1161 | U32 flags; | |
1162 | SV * ret; | |
1163 | ||
28d8d7f4 | 1164 | if (items < 1 || items > 2) |
afa74d42 | 1165 | croak_xs_usage(cv, "name[, all ]"); |
192b9cd1 | 1166 | |
80305961 | 1167 | SP -= items; |
fdae9473 | 1168 | PUTBACK; |
80305961 | 1169 | |
192b9cd1 AB |
1170 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1171 | ||
1172 | if (!rx) | |
1173 | XSRETURN_UNDEF; | |
1174 | ||
1175 | if (items == 2 && SvTRUE(ST(1))) { | |
f1b875a0 | 1176 | flags = RXapif_ALL; |
192b9cd1 | 1177 | } else { |
f1b875a0 | 1178 | flags = RXapif_ONE; |
80305961 | 1179 | } |
f1b875a0 | 1180 | ret = CALLREG_NAMED_BUFF_FETCH(rx, ST(0), (flags | RXapif_REGNAME)); |
192b9cd1 | 1181 | |
fdae9473 NC |
1182 | SPAGAIN; |
1183 | PUSHs(ret ? sv_2mortal(ret) : &PL_sv_undef); | |
1184 | XSRETURN(1); | |
80305961 YO |
1185 | } |
1186 | ||
192b9cd1 | 1187 | |
80305961 YO |
1188 | XS(XS_re_regnames) |
1189 | { | |
192b9cd1 | 1190 | dVAR; |
80305961 | 1191 | dXSARGS; |
192b9cd1 AB |
1192 | REGEXP * rx; |
1193 | U32 flags; | |
1194 | SV *ret; | |
1195 | AV *av; | |
1196 | I32 length; | |
1197 | I32 i; | |
1198 | SV **entry; | |
1199 | ||
1200 | if (items > 1) | |
afa74d42 | 1201 | croak_xs_usage(cv, "[all]"); |
192b9cd1 AB |
1202 | |
1203 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; | |
1204 | ||
1205 | if (!rx) | |
1206 | XSRETURN_UNDEF; | |
1207 | ||
1208 | if (items == 1 && SvTRUE(ST(0))) { | |
f1b875a0 | 1209 | flags = RXapif_ALL; |
192b9cd1 | 1210 | } else { |
f1b875a0 | 1211 | flags = RXapif_ONE; |
192b9cd1 AB |
1212 | } |
1213 | ||
80305961 | 1214 | SP -= items; |
fdae9473 | 1215 | PUTBACK; |
80305961 | 1216 | |
f1b875a0 | 1217 | ret = CALLREG_NAMED_BUFF_ALL(rx, (flags | RXapif_REGNAMES)); |
192b9cd1 AB |
1218 | |
1219 | SPAGAIN; | |
1220 | ||
192b9cd1 AB |
1221 | if (!ret) |
1222 | XSRETURN_UNDEF; | |
1223 | ||
502c6561 | 1224 | av = MUTABLE_AV(SvRV(ret)); |
192b9cd1 AB |
1225 | length = av_len(av); |
1226 | ||
1227 | for (i = 0; i <= length; i++) { | |
1228 | entry = av_fetch(av, i, FALSE); | |
1229 | ||
1230 | if (!entry) | |
1231 | Perl_croak(aTHX_ "NULL array element in re::regnames()"); | |
1232 | ||
ec83ea38 | 1233 | mXPUSHs(SvREFCNT_inc_simple_NN(*entry)); |
80305961 | 1234 | } |
ec83ea38 MHM |
1235 | |
1236 | SvREFCNT_dec(ret); | |
1237 | ||
192b9cd1 AB |
1238 | PUTBACK; |
1239 | return; | |
80305961 YO |
1240 | } |
1241 | ||
192c1e27 JH |
1242 | XS(XS_re_regexp_pattern) |
1243 | { | |
1244 | dVAR; | |
1245 | dXSARGS; | |
1246 | REGEXP *re; | |
192c1e27 JH |
1247 | |
1248 | if (items != 1) | |
afa74d42 | 1249 | croak_xs_usage(cv, "sv"); |
192c1e27 JH |
1250 | |
1251 | SP -= items; | |
1252 | ||
1253 | /* | |
1254 | Checks if a reference is a regex or not. If the parameter is | |
1255 | not a ref, or is not the result of a qr// then returns false | |
1256 | in scalar context and an empty list in list context. | |
1257 | Otherwise in list context it returns the pattern and the | |
1258 | modifiers, in scalar context it returns the pattern just as it | |
1259 | would if the qr// was stringified normally, regardless as | |
486ec47a | 1260 | to the class of the variable and any stringification overloads |
192c1e27 JH |
1261 | on the object. |
1262 | */ | |
1263 | ||
1264 | if ((re = SvRX(ST(0)))) /* assign deliberate */ | |
1265 | { | |
22c985d5 | 1266 | /* Houston, we have a regex! */ |
192c1e27 | 1267 | SV *pattern; |
192c1e27 JH |
1268 | |
1269 | if ( GIMME_V == G_ARRAY ) { | |
9de15fec | 1270 | STRLEN left = 0; |
a62b1201 | 1271 | char reflags[sizeof(INT_PAT_MODS) + MAX_CHARSET_NAME_LENGTH]; |
69af1167 SH |
1272 | const char *fptr; |
1273 | char ch; | |
1274 | U16 match_flags; | |
1275 | ||
192c1e27 JH |
1276 | /* |
1277 | we are in list context so stringify | |
1278 | the modifiers that apply. We ignore "negative | |
a62b1201 | 1279 | modifiers" in this scenario, and the default character set |
192c1e27 JH |
1280 | */ |
1281 | ||
a62b1201 KW |
1282 | if (get_regex_charset(RX_EXTFLAGS(re)) != REGEX_DEPENDS_CHARSET) { |
1283 | STRLEN len; | |
1284 | const char* const name = get_regex_charset_name(RX_EXTFLAGS(re), | |
1285 | &len); | |
1286 | Copy(name, reflags + left, len, char); | |
1287 | left += len; | |
9de15fec | 1288 | } |
69af1167 | 1289 | fptr = INT_PAT_MODS; |
73134a2e | 1290 | match_flags = (U16)((RX_EXTFLAGS(re) & RXf_PMf_COMPILETIME) |
192c1e27 JH |
1291 | >> RXf_PMf_STD_PMMOD_SHIFT); |
1292 | ||
1293 | while((ch = *fptr++)) { | |
1294 | if(match_flags & 1) { | |
1295 | reflags[left++] = ch; | |
1296 | } | |
1297 | match_flags >>= 1; | |
1298 | } | |
1299 | ||
fb632ce3 NC |
1300 | pattern = newSVpvn_flags(RX_PRECOMP(re),RX_PRELEN(re), |
1301 | (RX_UTF8(re) ? SVf_UTF8 : 0) | SVs_TEMP); | |
192c1e27 JH |
1302 | |
1303 | /* return the pattern and the modifiers */ | |
1304 | XPUSHs(pattern); | |
fb632ce3 | 1305 | XPUSHs(newSVpvn_flags(reflags, left, SVs_TEMP)); |
192c1e27 JH |
1306 | XSRETURN(2); |
1307 | } else { | |
1308 | /* Scalar, so use the string that Perl would return */ | |
1309 | /* return the pattern in (?msix:..) format */ | |
1310 | #if PERL_VERSION >= 11 | |
daba3364 | 1311 | pattern = sv_2mortal(newSVsv(MUTABLE_SV(re))); |
192c1e27 | 1312 | #else |
fb632ce3 NC |
1313 | pattern = newSVpvn_flags(RX_WRAPPED(re), RX_WRAPLEN(re), |
1314 | (RX_UTF8(re) ? SVf_UTF8 : 0) | SVs_TEMP); | |
192c1e27 JH |
1315 | #endif |
1316 | XPUSHs(pattern); | |
1317 | XSRETURN(1); | |
1318 | } | |
1319 | } else { | |
1320 | /* It ain't a regexp folks */ | |
1321 | if ( GIMME_V == G_ARRAY ) { | |
1322 | /* return the empty list */ | |
1323 | XSRETURN_UNDEF; | |
1324 | } else { | |
1325 | /* Because of the (?:..) wrapping involved in a | |
1326 | stringified pattern it is impossible to get a | |
1327 | result for a real regexp that would evaluate to | |
1328 | false. Therefore we can return PL_sv_no to signify | |
1329 | that the object is not a regex, this means that one | |
1330 | can say | |
1331 | ||
1332 | if (regex($might_be_a_regex) eq '(?:foo)') { } | |
1333 | ||
1334 | and not worry about undefined values. | |
1335 | */ | |
1336 | XSRETURN_NO; | |
1337 | } | |
1338 | } | |
1339 | /* NOT-REACHED */ | |
1340 | } | |
1341 | ||
eff5b9d5 NC |
1342 | struct xsub_details { |
1343 | const char *name; | |
1344 | XSUBADDR_t xsub; | |
1345 | const char *proto; | |
1346 | }; | |
1347 | ||
1348 | struct xsub_details details[] = { | |
1349 | {"UNIVERSAL::isa", XS_UNIVERSAL_isa, NULL}, | |
1350 | {"UNIVERSAL::can", XS_UNIVERSAL_can, NULL}, | |
1351 | {"UNIVERSAL::DOES", XS_UNIVERSAL_DOES, NULL}, | |
1352 | {"UNIVERSAL::VERSION", XS_UNIVERSAL_VERSION, NULL}, | |
1353 | {"version::()", XS_version_noop, NULL}, | |
1354 | {"version::new", XS_version_new, NULL}, | |
1355 | {"version::parse", XS_version_new, NULL}, | |
1356 | {"version::(\"\"", XS_version_stringify, NULL}, | |
1357 | {"version::stringify", XS_version_stringify, NULL}, | |
1358 | {"version::(0+", XS_version_numify, NULL}, | |
1359 | {"version::numify", XS_version_numify, NULL}, | |
1360 | {"version::normal", XS_version_normal, NULL}, | |
1361 | {"version::(cmp", XS_version_vcmp, NULL}, | |
1362 | {"version::(<=>", XS_version_vcmp, NULL}, | |
1363 | {"version::vcmp", XS_version_vcmp, NULL}, | |
1364 | {"version::(bool", XS_version_boolean, NULL}, | |
1365 | {"version::boolean", XS_version_boolean, NULL}, | |
1366 | {"version::(nomethod", XS_version_noop, NULL}, | |
1367 | {"version::noop", XS_version_noop, NULL}, | |
1368 | {"version::is_alpha", XS_version_is_alpha, NULL}, | |
1369 | {"version::qv", XS_version_qv, NULL}, | |
1370 | {"version::declare", XS_version_qv, NULL}, | |
1371 | {"version::is_qv", XS_version_is_qv, NULL}, | |
1372 | {"utf8::is_utf8", XS_utf8_is_utf8, NULL}, | |
1373 | {"utf8::valid", XS_utf8_valid, NULL}, | |
1374 | {"utf8::encode", XS_utf8_encode, NULL}, | |
1375 | {"utf8::decode", XS_utf8_decode, NULL}, | |
1376 | {"utf8::upgrade", XS_utf8_upgrade, NULL}, | |
1377 | {"utf8::downgrade", XS_utf8_downgrade, NULL}, | |
1378 | {"utf8::native_to_unicode", XS_utf8_native_to_unicode, NULL}, | |
1379 | {"utf8::unicode_to_native", XS_utf8_unicode_to_native, NULL}, | |
1380 | {"Internals::SvREADONLY", XS_Internals_SvREADONLY, "\\[$%@];$"}, | |
1381 | {"Internals::SvREFCNT", XS_Internals_SvREFCNT, "\\[$%@];$"}, | |
1382 | {"Internals::hv_clear_placeholders", XS_Internals_hv_clear_placehold, "\\%"}, | |
1383 | {"PerlIO::get_layers", XS_PerlIO_get_layers, "*;@"}, | |
1384 | {"Internals::hash_seed", XS_Internals_hash_seed, ""}, | |
1385 | {"Internals::rehash_seed", XS_Internals_rehash_seed, ""}, | |
1386 | {"Internals::HvREHASH", XS_Internals_HvREHASH, "\\%"}, | |
1387 | {"re::is_regexp", XS_re_is_regexp, "$"}, | |
1388 | {"re::regname", XS_re_regname, ";$$"}, | |
1389 | {"re::regnames", XS_re_regnames, ";$"}, | |
1390 | {"re::regnames_count", XS_re_regnames_count, ""}, | |
1391 | {"re::regexp_pattern", XS_re_regexp_pattern, "$"}, | |
eff5b9d5 NC |
1392 | }; |
1393 | ||
1394 | void | |
1395 | Perl_boot_core_UNIVERSAL(pTHX) | |
1396 | { | |
1397 | dVAR; | |
1398 | static const char file[] = __FILE__; | |
1399 | struct xsub_details *xsub = details; | |
1400 | const struct xsub_details *end | |
1401 | = details + sizeof(details) / sizeof(details[0]); | |
1402 | ||
1403 | do { | |
1404 | newXS_flags(xsub->name, xsub->xsub, file, xsub->proto, 0); | |
1405 | } while (++xsub < end); | |
1406 | ||
1407 | /* register the overloading (type 'A') magic */ | |
1408 | PL_amagic_generation++; | |
1409 | ||
1410 | /* Providing a Regexp::DESTROY fixes #21347. See test in t/op/ref.t */ | |
bad4ae38 FC |
1411 | { |
1412 | CV * const cv = | |
1413 | newCONSTSUB(get_hv("Regexp::", GV_ADD), "DESTROY", NULL); | |
1414 | Safefree(CvFILE(cv)); | |
1415 | CvFILE(cv) = (char *)file; | |
1416 | CvDYNFILE_off(cv); | |
1417 | } | |
eff5b9d5 | 1418 | } |
80305961 | 1419 | |
241d1a3b NC |
1420 | /* |
1421 | * Local variables: | |
1422 | * c-indentation-style: bsd | |
1423 | * c-basic-offset: 4 | |
1424 | * indent-tabs-mode: t | |
1425 | * End: | |
1426 | * | |
37442d52 RGS |
1427 | * ex: set ts=8 sts=4 sw=4 noet: |
1428 | */ |