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 | |
bff39573 | 157 | if (SvROK(sv)) { |
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 | |
cee59a6a FC |
359 | if (!SvOK(sv) || !(SvROK(sv) || SvNIOK(sv) || (SvPOK(sv) && SvCUR(sv)) |
360 | || (SvGMAGICAL(sv) && (SvNIOKp(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; | |
e1ec3a88 | 409 | const char *undef; |
58c0efa5 | 410 | PERL_UNUSED_ARG(cv); |
6d4a7be2 | 411 | |
1571675a | 412 | if (SvROK(ST(0))) { |
daba3364 | 413 | sv = MUTABLE_SV(SvRV(ST(0))); |
1571675a | 414 | if (!SvOBJECT(sv)) |
cea2e8a9 | 415 | Perl_croak(aTHX_ "Cannot find version of an unblessed reference"); |
6d4a7be2 | 416 | pkg = SvSTASH(sv); |
417 | } | |
418 | else { | |
da51bb9b | 419 | pkg = gv_stashsv(ST(0), 0); |
6d4a7be2 | 420 | } |
421 | ||
4608196e | 422 | gvp = pkg ? (GV**)hv_fetchs(pkg, "VERSION", FALSE) : NULL; |
6d4a7be2 | 423 | |
0008872a | 424 | if (gvp && isGV(gv = *gvp) && (sv = GvSV(gv)) && SvOK(sv)) { |
a97f6d14 JP |
425 | SV * const nsv = sv_newmortal(); |
426 | sv_setsv(nsv, sv); | |
427 | sv = nsv; | |
573a19fb | 428 | if ( !sv_isobject(sv) || !sv_derived_from(sv, "version")) |
a97f6d14 JP |
429 | upg_version(sv, FALSE); |
430 | ||
c445ea15 | 431 | undef = NULL; |
6d4a7be2 | 432 | } |
433 | else { | |
a97f6d14 | 434 | sv = &PL_sv_undef; |
6d4a7be2 | 435 | undef = "(undef)"; |
436 | } | |
437 | ||
1571675a | 438 | if (items > 1) { |
1571675a GS |
439 | SV *req = ST(1); |
440 | ||
62658f4d | 441 | if (undef) { |
bfcb3514 | 442 | if (pkg) { |
d0c0e7dd | 443 | const HEK * const name = HvNAME_HEK(pkg); |
a3b680e6 | 444 | Perl_croak(aTHX_ |
d0c0e7dd FC |
445 | "%"HEKf" does not define $%"HEKf |
446 | "::VERSION--version check failed", | |
447 | HEKfARG(name), HEKfARG(name)); | |
bfcb3514 | 448 | } else { |
a3b680e6 | 449 | Perl_croak(aTHX_ |
ed1db70e BF |
450 | "%"SVf" defines neither package nor VERSION--version check failed", |
451 | SVfARG(ST(0)) ); | |
62658f4d PM |
452 | } |
453 | } | |
ad63d80f | 454 | |
573a19fb | 455 | if ( !sv_isobject(req) || !sv_derived_from(req, "version")) { |
137d6fc0 | 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 | |
a97f6d14 JP |
478 | if ( SvOK(sv) && sv_derived_from(sv, "version") ) { |
479 | ST(0) = sv_2mortal(vstringify(sv)); | |
480 | } else { | |
481 | ST(0) = sv; | |
482 | } | |
6d4a7be2 | 483 | |
484 | XSRETURN(1); | |
485 | } | |
486 | ||
439cb1c4 JP |
487 | XS(XS_version_new) |
488 | { | |
97aff369 | 489 | dVAR; |
439cb1c4 | 490 | dXSARGS; |
129318bd | 491 | if (items > 3) |
afa74d42 | 492 | croak_xs_usage(cv, "class, version"); |
439cb1c4 JP |
493 | SP -= items; |
494 | { | |
137d6fc0 JP |
495 | SV *vs = ST(1); |
496 | SV *rv; | |
ed1db70e BF |
497 | STRLEN len; |
498 | const char *classname; | |
499 | U32 flags; | |
500 | if ( sv_isobject(ST(0)) ) { /* get the class if called as an object method */ | |
501 | const HV * stash = SvSTASH(SvRV(ST(0))); | |
502 | classname = HvNAME(stash); | |
503 | len = HvNAMELEN(stash); | |
504 | flags = HvNAMEUTF8(stash) ? SVf_UTF8 : 0; | |
505 | } | |
506 | else { | |
507 | classname = SvPV(ST(0), len); | |
508 | flags = SvUTF8(ST(0)); | |
509 | } | |
9137345a | 510 | |
91152fc1 | 511 | if ( items == 1 || ! SvOK(vs) ) { /* no param or explicit undef */ |
92dcf8ce JP |
512 | /* create empty object */ |
513 | vs = sv_newmortal(); | |
be5574c0 | 514 | sv_setpvs(vs, "0"); |
9137345a JP |
515 | } |
516 | else if ( items == 3 ) { | |
517 | vs = sv_newmortal(); | |
cfd0369c | 518 | Perl_sv_setpvf(aTHX_ vs,"v%s",SvPV_nolen_const(ST(2))); |
129318bd | 519 | } |
439cb1c4 | 520 | |
137d6fc0 | 521 | rv = new_version(vs); |
ed1db70e BF |
522 | if ( strnNE(classname,"version", len) ) /* inherited new() */ |
523 | sv_bless(rv, gv_stashpvn(classname, len, GV_ADD | flags)); | |
137d6fc0 | 524 | |
6e449a3a | 525 | mPUSHs(rv); |
439cb1c4 JP |
526 | PUTBACK; |
527 | return; | |
528 | } | |
529 | } | |
530 | ||
531 | XS(XS_version_stringify) | |
532 | { | |
97aff369 | 533 | dVAR; |
41be1fbd JH |
534 | dXSARGS; |
535 | if (items < 1) | |
afa74d42 | 536 | croak_xs_usage(cv, "lobj, ..."); |
41be1fbd JH |
537 | SP -= items; |
538 | { | |
d808b681 | 539 | SV * lobj = ST(0); |
41be1fbd | 540 | |
573a19fb | 541 | if (sv_isobject(lobj) && sv_derived_from(lobj, "version")) { |
d808b681 | 542 | lobj = SvRV(lobj); |
41be1fbd JH |
543 | } |
544 | else | |
545 | Perl_croak(aTHX_ "lobj is not of type version"); | |
546 | ||
6e449a3a | 547 | mPUSHs(vstringify(lobj)); |
41be1fbd JH |
548 | |
549 | PUTBACK; | |
550 | return; | |
551 | } | |
439cb1c4 JP |
552 | } |
553 | ||
554 | XS(XS_version_numify) | |
555 | { | |
97aff369 | 556 | dVAR; |
41be1fbd JH |
557 | dXSARGS; |
558 | if (items < 1) | |
afa74d42 | 559 | croak_xs_usage(cv, "lobj, ..."); |
41be1fbd JH |
560 | SP -= items; |
561 | { | |
d808b681 | 562 | SV * lobj = ST(0); |
41be1fbd | 563 | |
573a19fb | 564 | if (sv_isobject(lobj) && sv_derived_from(lobj, "version")) { |
d808b681 | 565 | lobj = SvRV(lobj); |
41be1fbd JH |
566 | } |
567 | else | |
568 | Perl_croak(aTHX_ "lobj is not of type version"); | |
569 | ||
6e449a3a | 570 | mPUSHs(vnumify(lobj)); |
41be1fbd JH |
571 | |
572 | PUTBACK; | |
573 | return; | |
574 | } | |
439cb1c4 JP |
575 | } |
576 | ||
9137345a JP |
577 | XS(XS_version_normal) |
578 | { | |
97aff369 | 579 | dVAR; |
9137345a JP |
580 | dXSARGS; |
581 | if (items < 1) | |
afa74d42 | 582 | croak_xs_usage(cv, "lobj, ..."); |
9137345a JP |
583 | SP -= items; |
584 | { | |
d808b681 | 585 | SV * lobj = ST(0); |
9137345a | 586 | |
573a19fb | 587 | if (sv_isobject(lobj) && sv_derived_from(lobj, "version")) { |
d808b681 | 588 | lobj = SvRV(lobj); |
9137345a JP |
589 | } |
590 | else | |
591 | Perl_croak(aTHX_ "lobj is not of type version"); | |
592 | ||
6e449a3a | 593 | mPUSHs(vnormal(lobj)); |
9137345a JP |
594 | |
595 | PUTBACK; | |
596 | return; | |
597 | } | |
598 | } | |
599 | ||
439cb1c4 JP |
600 | XS(XS_version_vcmp) |
601 | { | |
97aff369 | 602 | dVAR; |
41be1fbd JH |
603 | dXSARGS; |
604 | if (items < 1) | |
afa74d42 | 605 | croak_xs_usage(cv, "lobj, ..."); |
41be1fbd JH |
606 | SP -= items; |
607 | { | |
d808b681 | 608 | SV * lobj = ST(0); |
41be1fbd | 609 | |
573a19fb | 610 | if (sv_isobject(lobj) && sv_derived_from(lobj, "version")) { |
d808b681 | 611 | lobj = SvRV(lobj); |
41be1fbd JH |
612 | } |
613 | else | |
614 | Perl_croak(aTHX_ "lobj is not of type version"); | |
615 | ||
616 | { | |
617 | SV *rs; | |
618 | SV *rvs; | |
619 | SV * robj = ST(1); | |
7452cf6a | 620 | const IV swap = (IV)SvIV(ST(2)); |
41be1fbd | 621 | |
573a19fb | 622 | if ( !sv_isobject(robj) || !sv_derived_from(robj, "version") ) |
41be1fbd | 623 | { |
e3a22e3f GF |
624 | robj = new_version(SvOK(robj) ? robj : newSVpvs_flags("0", SVs_TEMP)); |
625 | sv_2mortal(robj); | |
41be1fbd JH |
626 | } |
627 | rvs = SvRV(robj); | |
628 | ||
629 | if ( swap ) | |
630 | { | |
631 | rs = newSViv(vcmp(rvs,lobj)); | |
632 | } | |
633 | else | |
634 | { | |
635 | rs = newSViv(vcmp(lobj,rvs)); | |
636 | } | |
637 | ||
6e449a3a | 638 | mPUSHs(rs); |
41be1fbd JH |
639 | } |
640 | ||
641 | PUTBACK; | |
642 | return; | |
643 | } | |
439cb1c4 JP |
644 | } |
645 | ||
646 | XS(XS_version_boolean) | |
647 | { | |
97aff369 JH |
648 | dVAR; |
649 | dXSARGS; | |
650 | if (items < 1) | |
afa74d42 | 651 | croak_xs_usage(cv, "lobj, ..."); |
97aff369 | 652 | SP -= items; |
573a19fb | 653 | if (sv_isobject(ST(0)) && sv_derived_from(ST(0), "version")) { |
c4420975 | 654 | SV * const lobj = SvRV(ST(0)); |
bcb2959f FC |
655 | SV * const rs = |
656 | newSViv( vcmp(lobj, | |
657 | sv_2mortal(new_version( | |
658 | sv_2mortal(newSVpvs("0")) | |
659 | )) | |
660 | ) | |
661 | ); | |
6e449a3a | 662 | mPUSHs(rs); |
c4420975 AL |
663 | PUTBACK; |
664 | return; | |
665 | } | |
666 | else | |
667 | Perl_croak(aTHX_ "lobj is not of type version"); | |
439cb1c4 JP |
668 | } |
669 | ||
670 | XS(XS_version_noop) | |
671 | { | |
97aff369 | 672 | dVAR; |
2dfd8427 AL |
673 | dXSARGS; |
674 | if (items < 1) | |
afa74d42 | 675 | croak_xs_usage(cv, "lobj, ..."); |
573a19fb | 676 | if (sv_isobject(ST(0)) && sv_derived_from(ST(0), "version")) |
2dfd8427 AL |
677 | Perl_croak(aTHX_ "operation not supported with version object"); |
678 | else | |
679 | Perl_croak(aTHX_ "lobj is not of type version"); | |
680 | #ifndef HASATTRIBUTE_NORETURN | |
681 | XSRETURN_EMPTY; | |
682 | #endif | |
439cb1c4 JP |
683 | } |
684 | ||
c8d69e4a JP |
685 | XS(XS_version_is_alpha) |
686 | { | |
97aff369 | 687 | dVAR; |
c8d69e4a JP |
688 | dXSARGS; |
689 | if (items != 1) | |
afa74d42 | 690 | croak_xs_usage(cv, "lobj"); |
c8d69e4a | 691 | SP -= items; |
573a19fb | 692 | if (sv_isobject(ST(0)) && sv_derived_from(ST(0), "version")) { |
c4420975 | 693 | SV * const lobj = ST(0); |
ef8f7699 | 694 | if ( hv_exists(MUTABLE_HV(SvRV(lobj)), "alpha", 5 ) ) |
c4420975 AL |
695 | XSRETURN_YES; |
696 | else | |
697 | XSRETURN_NO; | |
c8d69e4a JP |
698 | PUTBACK; |
699 | return; | |
700 | } | |
c4420975 AL |
701 | else |
702 | Perl_croak(aTHX_ "lobj is not of type version"); | |
c8d69e4a JP |
703 | } |
704 | ||
137d6fc0 JP |
705 | XS(XS_version_qv) |
706 | { | |
97aff369 | 707 | dVAR; |
137d6fc0 | 708 | dXSARGS; |
4ed3fda4 | 709 | PERL_UNUSED_ARG(cv); |
137d6fc0 JP |
710 | SP -= items; |
711 | { | |
f941e658 JP |
712 | SV * ver = ST(0); |
713 | SV * rv; | |
ed1db70e BF |
714 | STRLEN len = 0; |
715 | const char * classname = ""; | |
716 | U32 flags = 0; | |
717 | if ( items == 2 && SvOK(ST(1)) ) { | |
718 | ver = ST(1); | |
719 | if ( sv_isobject(ST(0)) ) { /* class called as an object method */ | |
720 | const HV * stash = SvSTASH(SvRV(ST(0))); | |
721 | classname = HvNAME(stash); | |
722 | len = HvNAMELEN(stash); | |
723 | flags = HvNAMEUTF8(stash) ? SVf_UTF8 : 0; | |
724 | } | |
725 | else { | |
726 | classname = SvPV(ST(0), len); | |
727 | flags = SvUTF8(ST(0)); | |
728 | } | |
729 | } | |
f941e658 JP |
730 | if ( !SvVOK(ver) ) { /* not already a v-string */ |
731 | rv = sv_newmortal(); | |
ac0e6a2f RGS |
732 | sv_setsv(rv,ver); /* make a duplicate */ |
733 | upg_version(rv, TRUE); | |
f941e658 JP |
734 | } else { |
735 | rv = sv_2mortal(new_version(ver)); | |
137d6fc0 | 736 | } |
ed1db70e BF |
737 | if ( items == 2 |
738 | && strnNE(classname,"version", len) ) { /* inherited new() */ | |
739 | sv_bless(rv, gv_stashpvn(classname, len, GV_ADD | flags)); | |
740 | } | |
f941e658 JP |
741 | PUSHs(rv); |
742 | } | |
743 | PUTBACK; | |
744 | return; | |
745 | } | |
137d6fc0 | 746 | |
f941e658 JP |
747 | XS(XS_version_is_qv) |
748 | { | |
749 | dVAR; | |
750 | dXSARGS; | |
751 | if (items != 1) | |
752 | croak_xs_usage(cv, "lobj"); | |
753 | SP -= items; | |
573a19fb | 754 | if (sv_isobject(ST(0)) && sv_derived_from(ST(0), "version")) { |
f941e658 JP |
755 | SV * const lobj = ST(0); |
756 | if ( hv_exists(MUTABLE_HV(SvRV(lobj)), "qv", 2 ) ) | |
757 | XSRETURN_YES; | |
758 | else | |
759 | XSRETURN_NO; | |
137d6fc0 JP |
760 | PUTBACK; |
761 | return; | |
762 | } | |
f941e658 JP |
763 | else |
764 | Perl_croak(aTHX_ "lobj is not of type version"); | |
137d6fc0 JP |
765 | } |
766 | ||
8800c35a JH |
767 | XS(XS_utf8_is_utf8) |
768 | { | |
97aff369 | 769 | dVAR; |
41be1fbd JH |
770 | dXSARGS; |
771 | if (items != 1) | |
afa74d42 | 772 | croak_xs_usage(cv, "sv"); |
c4420975 | 773 | else { |
76f73021 GF |
774 | SV * const sv = ST(0); |
775 | SvGETMAGIC(sv); | |
c4420975 AL |
776 | if (SvUTF8(sv)) |
777 | XSRETURN_YES; | |
778 | else | |
779 | XSRETURN_NO; | |
41be1fbd JH |
780 | } |
781 | XSRETURN_EMPTY; | |
8800c35a JH |
782 | } |
783 | ||
1b026014 NIS |
784 | XS(XS_utf8_valid) |
785 | { | |
97aff369 | 786 | dVAR; |
41be1fbd JH |
787 | dXSARGS; |
788 | if (items != 1) | |
afa74d42 | 789 | croak_xs_usage(cv, "sv"); |
c4420975 AL |
790 | else { |
791 | SV * const sv = ST(0); | |
792 | STRLEN len; | |
793 | const char * const s = SvPV_const(sv,len); | |
794 | if (!SvUTF8(sv) || is_utf8_string((const U8*)s,len)) | |
795 | XSRETURN_YES; | |
796 | else | |
797 | XSRETURN_NO; | |
798 | } | |
41be1fbd | 799 | XSRETURN_EMPTY; |
1b026014 NIS |
800 | } |
801 | ||
802 | XS(XS_utf8_encode) | |
803 | { | |
97aff369 | 804 | dVAR; |
1b026014 NIS |
805 | dXSARGS; |
806 | if (items != 1) | |
afa74d42 | 807 | croak_xs_usage(cv, "sv"); |
c4420975 | 808 | sv_utf8_encode(ST(0)); |
1b026014 NIS |
809 | XSRETURN_EMPTY; |
810 | } | |
811 | ||
812 | XS(XS_utf8_decode) | |
813 | { | |
97aff369 | 814 | dVAR; |
1b026014 NIS |
815 | dXSARGS; |
816 | if (items != 1) | |
afa74d42 | 817 | croak_xs_usage(cv, "sv"); |
c4420975 AL |
818 | else { |
819 | SV * const sv = ST(0); | |
b2b7346b | 820 | bool RETVAL; |
c7102404 | 821 | SvPV_force_nolen(sv); |
b2b7346b | 822 | RETVAL = sv_utf8_decode(sv); |
1b026014 | 823 | ST(0) = boolSV(RETVAL); |
1b026014 NIS |
824 | } |
825 | XSRETURN(1); | |
826 | } | |
827 | ||
828 | XS(XS_utf8_upgrade) | |
829 | { | |
97aff369 | 830 | dVAR; |
1b026014 NIS |
831 | dXSARGS; |
832 | if (items != 1) | |
afa74d42 | 833 | croak_xs_usage(cv, "sv"); |
c4420975 AL |
834 | else { |
835 | SV * const sv = ST(0); | |
1b026014 NIS |
836 | STRLEN RETVAL; |
837 | dXSTARG; | |
838 | ||
839 | RETVAL = sv_utf8_upgrade(sv); | |
840 | XSprePUSH; PUSHi((IV)RETVAL); | |
841 | } | |
842 | XSRETURN(1); | |
843 | } | |
844 | ||
845 | XS(XS_utf8_downgrade) | |
846 | { | |
97aff369 | 847 | dVAR; |
1b026014 NIS |
848 | dXSARGS; |
849 | if (items < 1 || items > 2) | |
afa74d42 | 850 | croak_xs_usage(cv, "sv, failok=0"); |
c4420975 AL |
851 | else { |
852 | SV * const sv = ST(0); | |
6867be6d AL |
853 | const bool failok = (items < 2) ? 0 : (int)SvIV(ST(1)); |
854 | const bool RETVAL = sv_utf8_downgrade(sv, failok); | |
1b026014 | 855 | |
1b026014 | 856 | ST(0) = boolSV(RETVAL); |
1b026014 NIS |
857 | } |
858 | XSRETURN(1); | |
859 | } | |
860 | ||
861 | XS(XS_utf8_native_to_unicode) | |
862 | { | |
97aff369 | 863 | dVAR; |
1b026014 | 864 | dXSARGS; |
6867be6d | 865 | const UV uv = SvUV(ST(0)); |
b7953727 JH |
866 | |
867 | if (items > 1) | |
afa74d42 | 868 | croak_xs_usage(cv, "sv"); |
b7953727 | 869 | |
1b026014 NIS |
870 | ST(0) = sv_2mortal(newSViv(NATIVE_TO_UNI(uv))); |
871 | XSRETURN(1); | |
872 | } | |
873 | ||
874 | XS(XS_utf8_unicode_to_native) | |
875 | { | |
97aff369 | 876 | dVAR; |
1b026014 | 877 | dXSARGS; |
6867be6d | 878 | const UV uv = SvUV(ST(0)); |
b7953727 JH |
879 | |
880 | if (items > 1) | |
afa74d42 | 881 | croak_xs_usage(cv, "sv"); |
b7953727 | 882 | |
1b026014 NIS |
883 | ST(0) = sv_2mortal(newSViv(UNI_TO_NATIVE(uv))); |
884 | XSRETURN(1); | |
885 | } | |
886 | ||
14a976d6 | 887 | XS(XS_Internals_SvREADONLY) /* This is dangerous stuff. */ |
29569577 | 888 | { |
97aff369 | 889 | dVAR; |
29569577 | 890 | dXSARGS; |
80b6a949 AB |
891 | SV * const svz = ST(0); |
892 | SV * sv; | |
58c0efa5 | 893 | PERL_UNUSED_ARG(cv); |
6867be6d | 894 | |
80b6a949 AB |
895 | /* [perl #77776] - called as &foo() not foo() */ |
896 | if (!SvROK(svz)) | |
897 | croak_xs_usage(cv, "SCALAR[, ON]"); | |
898 | ||
899 | sv = SvRV(svz); | |
900 | ||
29569577 | 901 | if (items == 1) { |
3e89ba19 | 902 | if (SvREADONLY(sv) && !SvIsCOW(sv)) |
29569577 JH |
903 | XSRETURN_YES; |
904 | else | |
905 | XSRETURN_NO; | |
906 | } | |
907 | else if (items == 2) { | |
908 | if (SvTRUE(ST(1))) { | |
3e89ba19 | 909 | if (SvIsCOW(sv)) sv_force_normal(sv); |
29569577 JH |
910 | SvREADONLY_on(sv); |
911 | XSRETURN_YES; | |
912 | } | |
913 | else { | |
14a976d6 | 914 | /* I hope you really know what you are doing. */ |
3e89ba19 | 915 | if (!SvIsCOW(sv)) SvREADONLY_off(sv); |
29569577 JH |
916 | XSRETURN_NO; |
917 | } | |
918 | } | |
14a976d6 | 919 | XSRETURN_UNDEF; /* Can't happen. */ |
29569577 JH |
920 | } |
921 | ||
14a976d6 | 922 | XS(XS_Internals_SvREFCNT) /* This is dangerous stuff. */ |
29569577 | 923 | { |
97aff369 | 924 | dVAR; |
29569577 | 925 | dXSARGS; |
80b6a949 AB |
926 | SV * const svz = ST(0); |
927 | SV * sv; | |
58c0efa5 | 928 | PERL_UNUSED_ARG(cv); |
6867be6d | 929 | |
80b6a949 AB |
930 | /* [perl #77776] - called as &foo() not foo() */ |
931 | if (!SvROK(svz)) | |
932 | croak_xs_usage(cv, "SCALAR[, REFCOUNT]"); | |
933 | ||
934 | sv = SvRV(svz); | |
935 | ||
29569577 | 936 | if (items == 1) |
691f1758 | 937 | XSRETURN_UV(SvREFCNT(sv) - 1); /* Minus the ref created for us. */ |
29569577 | 938 | else if (items == 2) { |
14a976d6 | 939 | /* I hope you really know what you are doing. */ |
691f1758 TC |
940 | SvREFCNT(sv) = SvUV(ST(1)) + 1; /* we free one ref on exit */ |
941 | XSRETURN_UV(SvREFCNT(sv) - 1); | |
29569577 | 942 | } |
14a976d6 | 943 | XSRETURN_UNDEF; /* Can't happen. */ |
29569577 JH |
944 | } |
945 | ||
f044d0d1 | 946 | XS(XS_Internals_hv_clear_placehold) |
dfd4ef2f | 947 | { |
97aff369 | 948 | dVAR; |
dfd4ef2f | 949 | dXSARGS; |
6867be6d | 950 | |
80b6a949 | 951 | if (items != 1 || !SvROK(ST(0))) |
afa74d42 | 952 | croak_xs_usage(cv, "hv"); |
c4420975 | 953 | else { |
ef8f7699 | 954 | HV * const hv = MUTABLE_HV(SvRV(ST(0))); |
c4420975 AL |
955 | hv_clear_placeholders(hv); |
956 | XSRETURN(0); | |
957 | } | |
dfd4ef2f | 958 | } |
39f7a870 JH |
959 | |
960 | XS(XS_PerlIO_get_layers) | |
961 | { | |
97aff369 | 962 | dVAR; |
39f7a870 JH |
963 | dXSARGS; |
964 | if (items < 1 || items % 2 == 0) | |
afa74d42 | 965 | croak_xs_usage(cv, "filehandle[,args]"); |
5fef3b4a | 966 | #ifdef USE_PERLIO |
39f7a870 JH |
967 | { |
968 | SV * sv; | |
969 | GV * gv; | |
970 | IO * io; | |
971 | bool input = TRUE; | |
972 | bool details = FALSE; | |
973 | ||
974 | if (items > 1) { | |
c4420975 | 975 | SV * const *svp; |
39f7a870 | 976 | for (svp = MARK + 2; svp <= SP; svp += 2) { |
c4420975 AL |
977 | SV * const * const varp = svp; |
978 | SV * const * const valp = svp + 1; | |
39f7a870 | 979 | STRLEN klen; |
c4420975 | 980 | const char * const key = SvPV_const(*varp, klen); |
39f7a870 JH |
981 | |
982 | switch (*key) { | |
983 | case 'i': | |
984 | if (klen == 5 && memEQ(key, "input", 5)) { | |
985 | input = SvTRUE(*valp); | |
986 | break; | |
987 | } | |
988 | goto fail; | |
989 | case 'o': | |
990 | if (klen == 6 && memEQ(key, "output", 6)) { | |
991 | input = !SvTRUE(*valp); | |
992 | break; | |
993 | } | |
994 | goto fail; | |
995 | case 'd': | |
996 | if (klen == 7 && memEQ(key, "details", 7)) { | |
997 | details = SvTRUE(*valp); | |
998 | break; | |
999 | } | |
1000 | goto fail; | |
1001 | default: | |
1002 | fail: | |
1003 | Perl_croak(aTHX_ | |
1004 | "get_layers: unknown argument '%s'", | |
1005 | key); | |
1006 | } | |
1007 | } | |
1008 | ||
1009 | SP -= (items - 1); | |
1010 | } | |
1011 | ||
1012 | sv = POPs; | |
7f9aa7d3 | 1013 | gv = MAYBE_DEREF_GV(sv); |
39f7a870 | 1014 | |
3825652d | 1015 | if (!gv && !SvROK(sv)) |
7f9aa7d3 | 1016 | gv = gv_fetchsv_nomg(sv, 0, SVt_PVIO); |
39f7a870 JH |
1017 | |
1018 | if (gv && (io = GvIO(gv))) { | |
c4420975 | 1019 | AV* const av = PerlIO_get_layers(aTHX_ input ? |
39f7a870 JH |
1020 | IoIFP(io) : IoOFP(io)); |
1021 | I32 i; | |
c4420975 | 1022 | const I32 last = av_len(av); |
39f7a870 JH |
1023 | I32 nitem = 0; |
1024 | ||
1025 | for (i = last; i >= 0; i -= 3) { | |
c4420975 AL |
1026 | SV * const * const namsvp = av_fetch(av, i - 2, FALSE); |
1027 | SV * const * const argsvp = av_fetch(av, i - 1, FALSE); | |
1028 | SV * const * const flgsvp = av_fetch(av, i, FALSE); | |
39f7a870 | 1029 | |
c4420975 AL |
1030 | const bool namok = namsvp && *namsvp && SvPOK(*namsvp); |
1031 | const bool argok = argsvp && *argsvp && SvPOK(*argsvp); | |
1032 | const bool flgok = flgsvp && *flgsvp && SvIOK(*flgsvp); | |
39f7a870 JH |
1033 | |
1034 | if (details) { | |
92e45a3e NC |
1035 | /* Indents of 5? Yuck. */ |
1036 | /* We know that PerlIO_get_layers creates a new SV for | |
1037 | the name and flags, so we can just take a reference | |
1038 | and "steal" it when we free the AV below. */ | |
ec3bab8e | 1039 | XPUSHs(namok |
92e45a3e | 1040 | ? sv_2mortal(SvREFCNT_inc_simple_NN(*namsvp)) |
ec3bab8e NC |
1041 | : &PL_sv_undef); |
1042 | XPUSHs(argok | |
92e45a3e NC |
1043 | ? newSVpvn_flags(SvPVX_const(*argsvp), |
1044 | SvCUR(*argsvp), | |
1045 | (SvUTF8(*argsvp) ? SVf_UTF8 : 0) | |
1046 | | SVs_TEMP) | |
1047 | : &PL_sv_undef); | |
96ccaf53 | 1048 | XPUSHs(flgok |
92e45a3e | 1049 | ? sv_2mortal(SvREFCNT_inc_simple_NN(*flgsvp)) |
ec3bab8e | 1050 | : &PL_sv_undef); |
39f7a870 JH |
1051 | nitem += 3; |
1052 | } | |
1053 | else { | |
1054 | if (namok && argok) | |
1eb9e81d | 1055 | XPUSHs(sv_2mortal(Perl_newSVpvf(aTHX_ "%"SVf"(%"SVf")", |
be2597df | 1056 | SVfARG(*namsvp), |
1eb9e81d | 1057 | SVfARG(*argsvp)))); |
39f7a870 | 1058 | else if (namok) |
92e45a3e | 1059 | XPUSHs(sv_2mortal(SvREFCNT_inc_simple_NN(*namsvp))); |
39f7a870 JH |
1060 | else |
1061 | XPUSHs(&PL_sv_undef); | |
1062 | nitem++; | |
1063 | if (flgok) { | |
c4420975 | 1064 | const IV flags = SvIVX(*flgsvp); |
39f7a870 JH |
1065 | |
1066 | if (flags & PERLIO_F_UTF8) { | |
84bafc02 | 1067 | XPUSHs(newSVpvs_flags("utf8", SVs_TEMP)); |
39f7a870 JH |
1068 | nitem++; |
1069 | } | |
1070 | } | |
1071 | } | |
1072 | } | |
1073 | ||
1074 | SvREFCNT_dec(av); | |
1075 | ||
1076 | XSRETURN(nitem); | |
1077 | } | |
1078 | } | |
5fef3b4a | 1079 | #endif |
39f7a870 JH |
1080 | |
1081 | XSRETURN(0); | |
1082 | } | |
1083 | ||
9a7034eb | 1084 | XS(XS_Internals_hash_seed) |
c910b28a | 1085 | { |
97aff369 | 1086 | dVAR; |
c85d3f85 NC |
1087 | /* Using dXSARGS would also have dITEM and dSP, |
1088 | * which define 2 unused local variables. */ | |
557b887a | 1089 | dAXMARK; |
53c1dcc0 | 1090 | PERL_UNUSED_ARG(cv); |
ad73156c | 1091 | PERL_UNUSED_VAR(mark); |
81eaca17 | 1092 | XSRETURN_UV(PERL_HASH_SEED); |
c910b28a JH |
1093 | } |
1094 | ||
008fb0c0 | 1095 | XS(XS_Internals_rehash_seed) |
8e90d776 | 1096 | { |
97aff369 | 1097 | dVAR; |
8e90d776 NC |
1098 | /* Using dXSARGS would also have dITEM and dSP, |
1099 | * which define 2 unused local variables. */ | |
557b887a | 1100 | dAXMARK; |
53c1dcc0 | 1101 | PERL_UNUSED_ARG(cv); |
ad73156c | 1102 | PERL_UNUSED_VAR(mark); |
008fb0c0 | 1103 | XSRETURN_UV(PL_rehash_seed); |
8e90d776 NC |
1104 | } |
1105 | ||
05619474 NC |
1106 | XS(XS_Internals_HvREHASH) /* Subject to change */ |
1107 | { | |
97aff369 | 1108 | dVAR; |
05619474 | 1109 | dXSARGS; |
93c51217 | 1110 | PERL_UNUSED_ARG(cv); |
05619474 | 1111 | if (SvROK(ST(0))) { |
ef8f7699 | 1112 | const HV * const hv = (const HV *) SvRV(ST(0)); |
05619474 NC |
1113 | if (items == 1 && SvTYPE(hv) == SVt_PVHV) { |
1114 | if (HvREHASH(hv)) | |
1115 | XSRETURN_YES; | |
1116 | else | |
1117 | XSRETURN_NO; | |
1118 | } | |
1119 | } | |
1120 | Perl_croak(aTHX_ "Internals::HvREHASH $hashref"); | |
1121 | } | |
241d1a3b | 1122 | |
80305961 YO |
1123 | XS(XS_re_is_regexp) |
1124 | { | |
1125 | dVAR; | |
1126 | dXSARGS; | |
f7e71195 AB |
1127 | PERL_UNUSED_VAR(cv); |
1128 | ||
80305961 | 1129 | if (items != 1) |
afa74d42 | 1130 | croak_xs_usage(cv, "sv"); |
f7e71195 | 1131 | |
f7e71195 AB |
1132 | if (SvRXOK(ST(0))) { |
1133 | XSRETURN_YES; | |
1134 | } else { | |
1135 | XSRETURN_NO; | |
80305961 YO |
1136 | } |
1137 | } | |
1138 | ||
192b9cd1 | 1139 | XS(XS_re_regnames_count) |
80305961 | 1140 | { |
192b9cd1 AB |
1141 | REGEXP *rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1142 | SV * ret; | |
80305961 YO |
1143 | dVAR; |
1144 | dXSARGS; | |
192b9cd1 AB |
1145 | |
1146 | if (items != 0) | |
afa74d42 | 1147 | croak_xs_usage(cv, ""); |
192b9cd1 AB |
1148 | |
1149 | SP -= items; | |
fdae9473 | 1150 | PUTBACK; |
192b9cd1 AB |
1151 | |
1152 | if (!rx) | |
1153 | XSRETURN_UNDEF; | |
1154 | ||
1155 | ret = CALLREG_NAMED_BUFF_COUNT(rx); | |
1156 | ||
1157 | SPAGAIN; | |
fdae9473 NC |
1158 | PUSHs(ret ? sv_2mortal(ret) : &PL_sv_undef); |
1159 | XSRETURN(1); | |
192b9cd1 AB |
1160 | } |
1161 | ||
1162 | XS(XS_re_regname) | |
1163 | { | |
1164 | dVAR; | |
1165 | dXSARGS; | |
1166 | REGEXP * rx; | |
1167 | U32 flags; | |
1168 | SV * ret; | |
1169 | ||
28d8d7f4 | 1170 | if (items < 1 || items > 2) |
afa74d42 | 1171 | croak_xs_usage(cv, "name[, all ]"); |
192b9cd1 | 1172 | |
80305961 | 1173 | SP -= items; |
fdae9473 | 1174 | PUTBACK; |
80305961 | 1175 | |
192b9cd1 AB |
1176 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1177 | ||
1178 | if (!rx) | |
1179 | XSRETURN_UNDEF; | |
1180 | ||
1181 | if (items == 2 && SvTRUE(ST(1))) { | |
f1b875a0 | 1182 | flags = RXapif_ALL; |
192b9cd1 | 1183 | } else { |
f1b875a0 | 1184 | flags = RXapif_ONE; |
80305961 | 1185 | } |
f1b875a0 | 1186 | ret = CALLREG_NAMED_BUFF_FETCH(rx, ST(0), (flags | RXapif_REGNAME)); |
192b9cd1 | 1187 | |
fdae9473 NC |
1188 | SPAGAIN; |
1189 | PUSHs(ret ? sv_2mortal(ret) : &PL_sv_undef); | |
1190 | XSRETURN(1); | |
80305961 YO |
1191 | } |
1192 | ||
192b9cd1 | 1193 | |
80305961 YO |
1194 | XS(XS_re_regnames) |
1195 | { | |
192b9cd1 | 1196 | dVAR; |
80305961 | 1197 | dXSARGS; |
192b9cd1 AB |
1198 | REGEXP * rx; |
1199 | U32 flags; | |
1200 | SV *ret; | |
1201 | AV *av; | |
1202 | I32 length; | |
1203 | I32 i; | |
1204 | SV **entry; | |
1205 | ||
1206 | if (items > 1) | |
afa74d42 | 1207 | croak_xs_usage(cv, "[all]"); |
192b9cd1 AB |
1208 | |
1209 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; | |
1210 | ||
1211 | if (!rx) | |
1212 | XSRETURN_UNDEF; | |
1213 | ||
1214 | if (items == 1 && SvTRUE(ST(0))) { | |
f1b875a0 | 1215 | flags = RXapif_ALL; |
192b9cd1 | 1216 | } else { |
f1b875a0 | 1217 | flags = RXapif_ONE; |
192b9cd1 AB |
1218 | } |
1219 | ||
80305961 | 1220 | SP -= items; |
fdae9473 | 1221 | PUTBACK; |
80305961 | 1222 | |
f1b875a0 | 1223 | ret = CALLREG_NAMED_BUFF_ALL(rx, (flags | RXapif_REGNAMES)); |
192b9cd1 AB |
1224 | |
1225 | SPAGAIN; | |
1226 | ||
192b9cd1 AB |
1227 | if (!ret) |
1228 | XSRETURN_UNDEF; | |
1229 | ||
502c6561 | 1230 | av = MUTABLE_AV(SvRV(ret)); |
192b9cd1 AB |
1231 | length = av_len(av); |
1232 | ||
1233 | for (i = 0; i <= length; i++) { | |
1234 | entry = av_fetch(av, i, FALSE); | |
1235 | ||
1236 | if (!entry) | |
1237 | Perl_croak(aTHX_ "NULL array element in re::regnames()"); | |
1238 | ||
ec83ea38 | 1239 | mXPUSHs(SvREFCNT_inc_simple_NN(*entry)); |
80305961 | 1240 | } |
ec83ea38 MHM |
1241 | |
1242 | SvREFCNT_dec(ret); | |
1243 | ||
192b9cd1 AB |
1244 | PUTBACK; |
1245 | return; | |
80305961 YO |
1246 | } |
1247 | ||
192c1e27 JH |
1248 | XS(XS_re_regexp_pattern) |
1249 | { | |
1250 | dVAR; | |
1251 | dXSARGS; | |
1252 | REGEXP *re; | |
192c1e27 JH |
1253 | |
1254 | if (items != 1) | |
afa74d42 | 1255 | croak_xs_usage(cv, "sv"); |
192c1e27 JH |
1256 | |
1257 | SP -= items; | |
1258 | ||
1259 | /* | |
1260 | Checks if a reference is a regex or not. If the parameter is | |
1261 | not a ref, or is not the result of a qr// then returns false | |
1262 | in scalar context and an empty list in list context. | |
1263 | Otherwise in list context it returns the pattern and the | |
1264 | modifiers, in scalar context it returns the pattern just as it | |
1265 | would if the qr// was stringified normally, regardless as | |
486ec47a | 1266 | to the class of the variable and any stringification overloads |
192c1e27 JH |
1267 | on the object. |
1268 | */ | |
1269 | ||
1270 | if ((re = SvRX(ST(0)))) /* assign deliberate */ | |
1271 | { | |
22c985d5 | 1272 | /* Houston, we have a regex! */ |
192c1e27 | 1273 | SV *pattern; |
192c1e27 JH |
1274 | |
1275 | if ( GIMME_V == G_ARRAY ) { | |
9de15fec | 1276 | STRLEN left = 0; |
a62b1201 | 1277 | char reflags[sizeof(INT_PAT_MODS) + MAX_CHARSET_NAME_LENGTH]; |
69af1167 SH |
1278 | const char *fptr; |
1279 | char ch; | |
1280 | U16 match_flags; | |
1281 | ||
192c1e27 JH |
1282 | /* |
1283 | we are in list context so stringify | |
1284 | the modifiers that apply. We ignore "negative | |
a62b1201 | 1285 | modifiers" in this scenario, and the default character set |
192c1e27 JH |
1286 | */ |
1287 | ||
a62b1201 KW |
1288 | if (get_regex_charset(RX_EXTFLAGS(re)) != REGEX_DEPENDS_CHARSET) { |
1289 | STRLEN len; | |
1290 | const char* const name = get_regex_charset_name(RX_EXTFLAGS(re), | |
1291 | &len); | |
1292 | Copy(name, reflags + left, len, char); | |
1293 | left += len; | |
9de15fec | 1294 | } |
69af1167 | 1295 | fptr = INT_PAT_MODS; |
73134a2e | 1296 | match_flags = (U16)((RX_EXTFLAGS(re) & RXf_PMf_COMPILETIME) |
192c1e27 JH |
1297 | >> RXf_PMf_STD_PMMOD_SHIFT); |
1298 | ||
1299 | while((ch = *fptr++)) { | |
1300 | if(match_flags & 1) { | |
1301 | reflags[left++] = ch; | |
1302 | } | |
1303 | match_flags >>= 1; | |
1304 | } | |
1305 | ||
fb632ce3 NC |
1306 | pattern = newSVpvn_flags(RX_PRECOMP(re),RX_PRELEN(re), |
1307 | (RX_UTF8(re) ? SVf_UTF8 : 0) | SVs_TEMP); | |
192c1e27 JH |
1308 | |
1309 | /* return the pattern and the modifiers */ | |
1310 | XPUSHs(pattern); | |
fb632ce3 | 1311 | XPUSHs(newSVpvn_flags(reflags, left, SVs_TEMP)); |
192c1e27 JH |
1312 | XSRETURN(2); |
1313 | } else { | |
1314 | /* Scalar, so use the string that Perl would return */ | |
1315 | /* return the pattern in (?msix:..) format */ | |
1316 | #if PERL_VERSION >= 11 | |
daba3364 | 1317 | pattern = sv_2mortal(newSVsv(MUTABLE_SV(re))); |
192c1e27 | 1318 | #else |
fb632ce3 NC |
1319 | pattern = newSVpvn_flags(RX_WRAPPED(re), RX_WRAPLEN(re), |
1320 | (RX_UTF8(re) ? SVf_UTF8 : 0) | SVs_TEMP); | |
192c1e27 JH |
1321 | #endif |
1322 | XPUSHs(pattern); | |
1323 | XSRETURN(1); | |
1324 | } | |
1325 | } else { | |
1326 | /* It ain't a regexp folks */ | |
1327 | if ( GIMME_V == G_ARRAY ) { | |
1328 | /* return the empty list */ | |
1329 | XSRETURN_UNDEF; | |
1330 | } else { | |
1331 | /* Because of the (?:..) wrapping involved in a | |
1332 | stringified pattern it is impossible to get a | |
1333 | result for a real regexp that would evaluate to | |
1334 | false. Therefore we can return PL_sv_no to signify | |
1335 | that the object is not a regex, this means that one | |
1336 | can say | |
1337 | ||
1338 | if (regex($might_be_a_regex) eq '(?:foo)') { } | |
1339 | ||
1340 | and not worry about undefined values. | |
1341 | */ | |
1342 | XSRETURN_NO; | |
1343 | } | |
1344 | } | |
1345 | /* NOT-REACHED */ | |
1346 | } | |
1347 | ||
eff5b9d5 NC |
1348 | struct xsub_details { |
1349 | const char *name; | |
1350 | XSUBADDR_t xsub; | |
1351 | const char *proto; | |
1352 | }; | |
1353 | ||
1354 | struct xsub_details details[] = { | |
1355 | {"UNIVERSAL::isa", XS_UNIVERSAL_isa, NULL}, | |
1356 | {"UNIVERSAL::can", XS_UNIVERSAL_can, NULL}, | |
1357 | {"UNIVERSAL::DOES", XS_UNIVERSAL_DOES, NULL}, | |
1358 | {"UNIVERSAL::VERSION", XS_UNIVERSAL_VERSION, NULL}, | |
1359 | {"version::()", XS_version_noop, NULL}, | |
1360 | {"version::new", XS_version_new, NULL}, | |
1361 | {"version::parse", XS_version_new, NULL}, | |
1362 | {"version::(\"\"", XS_version_stringify, NULL}, | |
1363 | {"version::stringify", XS_version_stringify, NULL}, | |
1364 | {"version::(0+", XS_version_numify, NULL}, | |
1365 | {"version::numify", XS_version_numify, NULL}, | |
1366 | {"version::normal", XS_version_normal, NULL}, | |
1367 | {"version::(cmp", XS_version_vcmp, NULL}, | |
1368 | {"version::(<=>", XS_version_vcmp, NULL}, | |
1369 | {"version::vcmp", XS_version_vcmp, NULL}, | |
1370 | {"version::(bool", XS_version_boolean, NULL}, | |
1371 | {"version::boolean", XS_version_boolean, NULL}, | |
43d9ecf9 JP |
1372 | {"version::(+", XS_version_noop, NULL}, |
1373 | {"version::(-", XS_version_noop, NULL}, | |
1374 | {"version::(*", XS_version_noop, NULL}, | |
1375 | {"version::(/", XS_version_noop, NULL}, | |
1376 | {"version::(+=", XS_version_noop, NULL}, | |
1377 | {"version::(-=", XS_version_noop, NULL}, | |
1378 | {"version::(*=", XS_version_noop, NULL}, | |
1379 | {"version::(/=", XS_version_noop, NULL}, | |
1380 | {"version::(abs", XS_version_noop, NULL}, | |
eff5b9d5 NC |
1381 | {"version::(nomethod", XS_version_noop, NULL}, |
1382 | {"version::noop", XS_version_noop, NULL}, | |
1383 | {"version::is_alpha", XS_version_is_alpha, NULL}, | |
1384 | {"version::qv", XS_version_qv, NULL}, | |
1385 | {"version::declare", XS_version_qv, NULL}, | |
1386 | {"version::is_qv", XS_version_is_qv, NULL}, | |
1387 | {"utf8::is_utf8", XS_utf8_is_utf8, NULL}, | |
1388 | {"utf8::valid", XS_utf8_valid, NULL}, | |
1389 | {"utf8::encode", XS_utf8_encode, NULL}, | |
1390 | {"utf8::decode", XS_utf8_decode, NULL}, | |
1391 | {"utf8::upgrade", XS_utf8_upgrade, NULL}, | |
1392 | {"utf8::downgrade", XS_utf8_downgrade, NULL}, | |
1393 | {"utf8::native_to_unicode", XS_utf8_native_to_unicode, NULL}, | |
1394 | {"utf8::unicode_to_native", XS_utf8_unicode_to_native, NULL}, | |
1395 | {"Internals::SvREADONLY", XS_Internals_SvREADONLY, "\\[$%@];$"}, | |
1396 | {"Internals::SvREFCNT", XS_Internals_SvREFCNT, "\\[$%@];$"}, | |
1397 | {"Internals::hv_clear_placeholders", XS_Internals_hv_clear_placehold, "\\%"}, | |
1398 | {"PerlIO::get_layers", XS_PerlIO_get_layers, "*;@"}, | |
1399 | {"Internals::hash_seed", XS_Internals_hash_seed, ""}, | |
1400 | {"Internals::rehash_seed", XS_Internals_rehash_seed, ""}, | |
1401 | {"Internals::HvREHASH", XS_Internals_HvREHASH, "\\%"}, | |
1402 | {"re::is_regexp", XS_re_is_regexp, "$"}, | |
1403 | {"re::regname", XS_re_regname, ";$$"}, | |
1404 | {"re::regnames", XS_re_regnames, ";$"}, | |
1405 | {"re::regnames_count", XS_re_regnames_count, ""}, | |
1406 | {"re::regexp_pattern", XS_re_regexp_pattern, "$"}, | |
eff5b9d5 NC |
1407 | }; |
1408 | ||
1409 | void | |
1410 | Perl_boot_core_UNIVERSAL(pTHX) | |
1411 | { | |
1412 | dVAR; | |
1413 | static const char file[] = __FILE__; | |
1414 | struct xsub_details *xsub = details; | |
1415 | const struct xsub_details *end | |
1416 | = details + sizeof(details) / sizeof(details[0]); | |
1417 | ||
1418 | do { | |
1419 | newXS_flags(xsub->name, xsub->xsub, file, xsub->proto, 0); | |
1420 | } while (++xsub < end); | |
1421 | ||
eff5b9d5 | 1422 | /* Providing a Regexp::DESTROY fixes #21347. See test in t/op/ref.t */ |
bad4ae38 FC |
1423 | { |
1424 | CV * const cv = | |
1425 | newCONSTSUB(get_hv("Regexp::", GV_ADD), "DESTROY", NULL); | |
1426 | Safefree(CvFILE(cv)); | |
1427 | CvFILE(cv) = (char *)file; | |
1428 | CvDYNFILE_off(cv); | |
1429 | } | |
eff5b9d5 | 1430 | } |
80305961 | 1431 | |
241d1a3b NC |
1432 | /* |
1433 | * Local variables: | |
1434 | * c-indentation-style: bsd | |
1435 | * c-basic-offset: 4 | |
14d04a33 | 1436 | * indent-tabs-mode: nil |
241d1a3b NC |
1437 | * End: |
1438 | * | |
14d04a33 | 1439 | * ex: set ts=8 sts=4 sw=4 et: |
37442d52 | 1440 | */ |