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); |
61c2a935 JL |
167 | if (!stash) |
168 | stash = gv_stashpv("UNIVERSAL", 0); | |
55497cff | 169 | } |
46e4b22b | 170 | |
c7abbf64 | 171 | return stash ? isa_lookup(stash, name, len, flags) : FALSE; |
55497cff | 172 | } |
173 | ||
cbc021f9 | 174 | /* |
d20c2c29 | 175 | =for apidoc sv_does_sv |
cbc021f9 | 176 | |
177 | Returns a boolean indicating whether the SV performs a specific, named role. | |
178 | The SV can be a Perl object or the name of a Perl class. | |
179 | ||
180 | =cut | |
181 | */ | |
182 | ||
1b026014 NIS |
183 | #include "XSUB.h" |
184 | ||
cbc021f9 | 185 | bool |
f778bcfd | 186 | Perl_sv_does_sv(pTHX_ SV *sv, SV *namesv, U32 flags) |
cbc021f9 | 187 | { |
f778bcfd | 188 | SV *classname; |
cbc021f9 | 189 | bool does_it; |
59e7186f | 190 | SV *methodname; |
cbc021f9 | 191 | dSP; |
7918f24d | 192 | |
f778bcfd BF |
193 | PERL_ARGS_ASSERT_SV_DOES_SV; |
194 | PERL_UNUSED_ARG(flags); | |
7918f24d | 195 | |
cbc021f9 | 196 | ENTER; |
197 | SAVETMPS; | |
198 | ||
199 | SvGETMAGIC(sv); | |
200 | ||
201 | if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) | |
7ce46f2a GG |
202 | || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) { |
203 | LEAVE; | |
cbc021f9 | 204 | return FALSE; |
7ce46f2a | 205 | } |
cbc021f9 | 206 | |
207 | if (sv_isobject(sv)) { | |
f778bcfd | 208 | classname = sv_ref(NULL,SvRV(sv),TRUE); |
cbc021f9 | 209 | } else { |
f778bcfd | 210 | classname = sv; |
cbc021f9 | 211 | } |
212 | ||
f778bcfd | 213 | if (sv_eq(classname, namesv)) { |
7ce46f2a | 214 | LEAVE; |
cbc021f9 | 215 | return TRUE; |
7ce46f2a | 216 | } |
cbc021f9 | 217 | |
218 | PUSHMARK(SP); | |
f778bcfd BF |
219 | EXTEND(SP, 2); |
220 | PUSHs(sv); | |
221 | PUSHs(namesv); | |
cbc021f9 | 222 | PUTBACK; |
223 | ||
84bafc02 | 224 | methodname = newSVpvs_flags("isa", SVs_TEMP); |
59e7186f RGS |
225 | /* ugly hack: use the SvSCREAM flag so S_method_common |
226 | * can figure out we're calling DOES() and not isa(), | |
227 | * and report eventual errors correctly. --rgs */ | |
228 | SvSCREAM_on(methodname); | |
229 | call_sv(methodname, G_SCALAR | G_METHOD); | |
cbc021f9 | 230 | SPAGAIN; |
231 | ||
232 | does_it = SvTRUE( TOPs ); | |
233 | FREETMPS; | |
234 | LEAVE; | |
235 | ||
236 | return does_it; | |
237 | } | |
238 | ||
afa74d42 | 239 | /* |
f778bcfd BF |
240 | =for apidoc sv_does |
241 | ||
d20c2c29 | 242 | Like L</sv_does_pv>, but doesn't take a C<flags> parameter. |
f778bcfd BF |
243 | |
244 | =cut | |
245 | */ | |
246 | ||
247 | bool | |
248 | Perl_sv_does(pTHX_ SV *sv, const char *const name) | |
249 | { | |
250 | PERL_ARGS_ASSERT_SV_DOES; | |
251 | return sv_does_sv(sv, newSVpvn_flags(name, strlen(name), SVs_TEMP), 0); | |
252 | } | |
253 | ||
254 | /* | |
255 | =for apidoc sv_does_pv | |
256 | ||
7d892b8c | 257 | Like L</sv_does_sv>, but takes a nul-terminated string instead of an SV. |
f778bcfd BF |
258 | |
259 | =cut | |
260 | */ | |
261 | ||
262 | ||
263 | bool | |
264 | Perl_sv_does_pv(pTHX_ SV *sv, const char *const name, U32 flags) | |
265 | { | |
266 | PERL_ARGS_ASSERT_SV_DOES_PV; | |
267 | return sv_does_sv(sv, newSVpvn_flags(name, strlen(name), SVs_TEMP | flags), flags); | |
268 | } | |
269 | ||
7d892b8c FC |
270 | /* |
271 | =for apidoc sv_does_pvn | |
272 | ||
273 | Like L</sv_does_sv>, but takes a string/length pair instead of an SV. | |
274 | ||
275 | =cut | |
276 | */ | |
277 | ||
f778bcfd BF |
278 | bool |
279 | Perl_sv_does_pvn(pTHX_ SV *sv, const char *const name, const STRLEN len, U32 flags) | |
280 | { | |
281 | PERL_ARGS_ASSERT_SV_DOES_PVN; | |
282 | ||
283 | return sv_does_sv(sv, newSVpvn_flags(name, len, flags | SVs_TEMP), flags); | |
284 | } | |
285 | ||
286 | /* | |
afa74d42 NC |
287 | =for apidoc croak_xs_usage |
288 | ||
289 | A specialised variant of C<croak()> for emitting the usage message for xsubs | |
290 | ||
291 | croak_xs_usage(cv, "eee_yow"); | |
292 | ||
293 | works out the package name and subroutine name from C<cv>, and then calls | |
294 | C<croak()>. Hence if C<cv> is C<&ouch::awk>, it would call C<croak> as: | |
295 | ||
58cb15b3 | 296 | Perl_croak(aTHX_ "Usage: %"SVf"::%"SVf"(%s)", "ouch" "awk", "eee_yow"); |
afa74d42 NC |
297 | |
298 | =cut | |
299 | */ | |
300 | ||
301 | void | |
302 | Perl_croak_xs_usage(pTHX_ const CV *const cv, const char *const params) | |
303 | { | |
304 | const GV *const gv = CvGV(cv); | |
305 | ||
306 | PERL_ARGS_ASSERT_CROAK_XS_USAGE; | |
307 | ||
308 | if (gv) { | |
afa74d42 | 309 | const HV *const stash = GvSTASH(gv); |
afa74d42 | 310 | |
58cb15b3 | 311 | if (HvNAME_get(stash)) |
d0c0e7dd FC |
312 | Perl_croak(aTHX_ "Usage: %"HEKf"::%"HEKf"(%s)", |
313 | HEKfARG(HvNAME_HEK(stash)), | |
314 | HEKfARG(GvNAME_HEK(gv)), | |
58cb15b3 | 315 | params); |
afa74d42 | 316 | else |
d0c0e7dd FC |
317 | Perl_croak(aTHX_ "Usage: %"HEKf"(%s)", |
318 | HEKfARG(GvNAME_HEK(gv)), params); | |
afa74d42 NC |
319 | } else { |
320 | /* Pants. I don't think that it should be possible to get here. */ | |
93c51217 | 321 | Perl_croak(aTHX_ "Usage: CODE(0x%"UVxf")(%s)", PTR2UV(cv), params); |
afa74d42 NC |
322 | } |
323 | } | |
55497cff | 324 | |
6d4a7be2 | 325 | XS(XS_UNIVERSAL_isa) |
326 | { | |
97aff369 | 327 | dVAR; |
6d4a7be2 | 328 | dXSARGS; |
6d4a7be2 | 329 | |
330 | if (items != 2) | |
afa74d42 | 331 | croak_xs_usage(cv, "reference, kind"); |
c4420975 AL |
332 | else { |
333 | SV * const sv = ST(0); | |
6d4a7be2 | 334 | |
c4420975 | 335 | SvGETMAGIC(sv); |
d3f7f2b2 | 336 | |
c4420975 AL |
337 | if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) |
338 | || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) | |
339 | XSRETURN_UNDEF; | |
f8f70380 | 340 | |
c7abbf64 | 341 | ST(0) = boolSV(sv_derived_from_sv(sv, ST(1), 0)); |
c4420975 AL |
342 | XSRETURN(1); |
343 | } | |
6d4a7be2 | 344 | } |
345 | ||
6d4a7be2 | 346 | XS(XS_UNIVERSAL_can) |
347 | { | |
97aff369 | 348 | dVAR; |
6d4a7be2 | 349 | dXSARGS; |
350 | SV *sv; | |
6d4a7be2 | 351 | SV *rv; |
6f08146e | 352 | HV *pkg = NULL; |
6d4a7be2 | 353 | |
354 | if (items != 2) | |
afa74d42 | 355 | croak_xs_usage(cv, "object-ref, method"); |
6d4a7be2 | 356 | |
357 | sv = ST(0); | |
f8f70380 | 358 | |
5b295bef | 359 | SvGETMAGIC(sv); |
d3f7f2b2 | 360 | |
cee59a6a FC |
361 | if (!SvOK(sv) || !(SvROK(sv) || SvNIOK(sv) || (SvPOK(sv) && SvCUR(sv)) |
362 | || (SvGMAGICAL(sv) && (SvNIOKp(sv) || (SvPOKp(sv) && SvCUR(sv)))))) | |
f8f70380 GS |
363 | XSRETURN_UNDEF; |
364 | ||
3280af22 | 365 | rv = &PL_sv_undef; |
6d4a7be2 | 366 | |
46e4b22b | 367 | if (SvROK(sv)) { |
daba3364 | 368 | sv = MUTABLE_SV(SvRV(sv)); |
46e4b22b | 369 | if (SvOBJECT(sv)) |
6f08146e NIS |
370 | pkg = SvSTASH(sv); |
371 | } | |
372 | else { | |
da51bb9b | 373 | pkg = gv_stashsv(sv, 0); |
68b40612 JL |
374 | if (!pkg) |
375 | pkg = gv_stashpv("UNIVERSAL", 0); | |
6f08146e NIS |
376 | } |
377 | ||
378 | if (pkg) { | |
a00b390b | 379 | GV * const gv = gv_fetchmethod_sv_flags(pkg, ST(1), 0); |
dc848c6f | 380 | if (gv && isGV(gv)) |
daba3364 | 381 | rv = sv_2mortal(newRV(MUTABLE_SV(GvCV(gv)))); |
6d4a7be2 | 382 | } |
383 | ||
384 | ST(0) = rv; | |
385 | XSRETURN(1); | |
386 | } | |
387 | ||
cbc021f9 | 388 | XS(XS_UNIVERSAL_DOES) |
389 | { | |
390 | dVAR; | |
391 | dXSARGS; | |
58c0efa5 | 392 | PERL_UNUSED_ARG(cv); |
cbc021f9 | 393 | |
394 | if (items != 2) | |
46404226 | 395 | Perl_croak(aTHX_ "Usage: invocant->DOES(kind)"); |
cbc021f9 | 396 | else { |
397 | SV * const sv = ST(0); | |
f778bcfd | 398 | if (sv_does_sv( sv, ST(1), 0 )) |
cbc021f9 | 399 | XSRETURN_YES; |
400 | ||
401 | XSRETURN_NO; | |
402 | } | |
403 | } | |
404 | ||
6d4a7be2 | 405 | XS(XS_UNIVERSAL_VERSION) |
406 | { | |
97aff369 | 407 | dVAR; |
6d4a7be2 | 408 | dXSARGS; |
409 | HV *pkg; | |
410 | GV **gvp; | |
411 | GV *gv; | |
412 | SV *sv; | |
e1ec3a88 | 413 | const char *undef; |
58c0efa5 | 414 | PERL_UNUSED_ARG(cv); |
6d4a7be2 | 415 | |
1571675a | 416 | if (SvROK(ST(0))) { |
daba3364 | 417 | sv = MUTABLE_SV(SvRV(ST(0))); |
1571675a | 418 | if (!SvOBJECT(sv)) |
cea2e8a9 | 419 | Perl_croak(aTHX_ "Cannot find version of an unblessed reference"); |
6d4a7be2 | 420 | pkg = SvSTASH(sv); |
421 | } | |
422 | else { | |
da51bb9b | 423 | pkg = gv_stashsv(ST(0), 0); |
6d4a7be2 | 424 | } |
425 | ||
4608196e | 426 | gvp = pkg ? (GV**)hv_fetchs(pkg, "VERSION", FALSE) : NULL; |
6d4a7be2 | 427 | |
0008872a | 428 | if (gvp && isGV(gv = *gvp) && (sv = GvSV(gv)) && SvOK(sv)) { |
a97f6d14 JP |
429 | SV * const nsv = sv_newmortal(); |
430 | sv_setsv(nsv, sv); | |
431 | sv = nsv; | |
573a19fb | 432 | if ( !sv_isobject(sv) || !sv_derived_from(sv, "version")) |
a97f6d14 JP |
433 | upg_version(sv, FALSE); |
434 | ||
c445ea15 | 435 | undef = NULL; |
6d4a7be2 | 436 | } |
437 | else { | |
a97f6d14 | 438 | sv = &PL_sv_undef; |
6d4a7be2 | 439 | undef = "(undef)"; |
440 | } | |
441 | ||
1571675a | 442 | if (items > 1) { |
1571675a GS |
443 | SV *req = ST(1); |
444 | ||
62658f4d | 445 | if (undef) { |
bfcb3514 | 446 | if (pkg) { |
d0c0e7dd | 447 | const HEK * const name = HvNAME_HEK(pkg); |
a3b680e6 | 448 | Perl_croak(aTHX_ |
d0c0e7dd FC |
449 | "%"HEKf" does not define $%"HEKf |
450 | "::VERSION--version check failed", | |
451 | HEKfARG(name), HEKfARG(name)); | |
bfcb3514 | 452 | } else { |
a3b680e6 | 453 | Perl_croak(aTHX_ |
ed1db70e BF |
454 | "%"SVf" defines neither package nor VERSION--version check failed", |
455 | SVfARG(ST(0)) ); | |
62658f4d PM |
456 | } |
457 | } | |
ad63d80f | 458 | |
573a19fb | 459 | if ( !sv_isobject(req) || !sv_derived_from(req, "version")) { |
137d6fc0 | 460 | /* req may very well be R/O, so create a new object */ |
ac0e6a2f | 461 | req = sv_2mortal( new_version(req) ); |
137d6fc0 | 462 | } |
1571675a | 463 | |
ac0e6a2f | 464 | if ( vcmp( req, sv ) > 0 ) { |
ef8f7699 | 465 | if ( hv_exists(MUTABLE_HV(SvRV(req)), "qv", 2 ) ) { |
d0c0e7dd | 466 | Perl_croak(aTHX_ "%"HEKf" version %"SVf" required--" |
ed1db70e | 467 | "this is only version %"SVf"", |
d0c0e7dd | 468 | HEKfARG(HvNAME_HEK(pkg)), |
e3a22e3f GF |
469 | SVfARG(sv_2mortal(vnormal(req))), |
470 | SVfARG(sv_2mortal(vnormal(sv)))); | |
ac0e6a2f | 471 | } else { |
d0c0e7dd | 472 | Perl_croak(aTHX_ "%"HEKf" version %"SVf" required--" |
ed1db70e | 473 | "this is only version %"SVf, |
d0c0e7dd | 474 | HEKfARG(HvNAME_HEK(pkg)), |
e3a22e3f GF |
475 | SVfARG(sv_2mortal(vstringify(req))), |
476 | SVfARG(sv_2mortal(vstringify(sv)))); | |
ac0e6a2f RGS |
477 | } |
478 | } | |
479 | ||
2d8e6c8d | 480 | } |
6d4a7be2 | 481 | |
a97f6d14 JP |
482 | if ( SvOK(sv) && sv_derived_from(sv, "version") ) { |
483 | ST(0) = sv_2mortal(vstringify(sv)); | |
484 | } else { | |
485 | ST(0) = sv; | |
486 | } | |
6d4a7be2 | 487 | |
488 | XSRETURN(1); | |
489 | } | |
490 | ||
439cb1c4 JP |
491 | XS(XS_version_new) |
492 | { | |
97aff369 | 493 | dVAR; |
439cb1c4 | 494 | dXSARGS; |
129318bd | 495 | if (items > 3) |
afa74d42 | 496 | croak_xs_usage(cv, "class, version"); |
439cb1c4 JP |
497 | SP -= items; |
498 | { | |
137d6fc0 JP |
499 | SV *vs = ST(1); |
500 | SV *rv; | |
ed1db70e BF |
501 | STRLEN len; |
502 | const char *classname; | |
503 | U32 flags; | |
504 | if ( sv_isobject(ST(0)) ) { /* get the class if called as an object method */ | |
505 | const HV * stash = SvSTASH(SvRV(ST(0))); | |
506 | classname = HvNAME(stash); | |
507 | len = HvNAMELEN(stash); | |
508 | flags = HvNAMEUTF8(stash) ? SVf_UTF8 : 0; | |
509 | } | |
510 | else { | |
511 | classname = SvPV(ST(0), len); | |
512 | flags = SvUTF8(ST(0)); | |
513 | } | |
9137345a | 514 | |
91152fc1 | 515 | if ( items == 1 || ! SvOK(vs) ) { /* no param or explicit undef */ |
92dcf8ce JP |
516 | /* create empty object */ |
517 | vs = sv_newmortal(); | |
be5574c0 | 518 | sv_setpvs(vs, "0"); |
9137345a JP |
519 | } |
520 | else if ( items == 3 ) { | |
521 | vs = sv_newmortal(); | |
cfd0369c | 522 | Perl_sv_setpvf(aTHX_ vs,"v%s",SvPV_nolen_const(ST(2))); |
129318bd | 523 | } |
439cb1c4 | 524 | |
137d6fc0 | 525 | rv = new_version(vs); |
ed1db70e BF |
526 | if ( strnNE(classname,"version", len) ) /* inherited new() */ |
527 | sv_bless(rv, gv_stashpvn(classname, len, GV_ADD | flags)); | |
137d6fc0 | 528 | |
6e449a3a | 529 | mPUSHs(rv); |
439cb1c4 JP |
530 | PUTBACK; |
531 | return; | |
532 | } | |
533 | } | |
534 | ||
535 | XS(XS_version_stringify) | |
536 | { | |
97aff369 | 537 | dVAR; |
41be1fbd JH |
538 | dXSARGS; |
539 | if (items < 1) | |
afa74d42 | 540 | croak_xs_usage(cv, "lobj, ..."); |
41be1fbd JH |
541 | SP -= items; |
542 | { | |
d808b681 | 543 | SV * lobj = ST(0); |
41be1fbd | 544 | |
573a19fb | 545 | if (sv_isobject(lobj) && sv_derived_from(lobj, "version")) { |
d808b681 | 546 | lobj = SvRV(lobj); |
41be1fbd JH |
547 | } |
548 | else | |
549 | Perl_croak(aTHX_ "lobj is not of type version"); | |
550 | ||
6e449a3a | 551 | mPUSHs(vstringify(lobj)); |
41be1fbd JH |
552 | |
553 | PUTBACK; | |
554 | return; | |
555 | } | |
439cb1c4 JP |
556 | } |
557 | ||
558 | XS(XS_version_numify) | |
559 | { | |
97aff369 | 560 | dVAR; |
41be1fbd JH |
561 | dXSARGS; |
562 | if (items < 1) | |
afa74d42 | 563 | croak_xs_usage(cv, "lobj, ..."); |
41be1fbd JH |
564 | SP -= items; |
565 | { | |
d808b681 | 566 | SV * lobj = ST(0); |
41be1fbd | 567 | |
573a19fb | 568 | if (sv_isobject(lobj) && sv_derived_from(lobj, "version")) { |
d808b681 | 569 | lobj = SvRV(lobj); |
41be1fbd JH |
570 | } |
571 | else | |
572 | Perl_croak(aTHX_ "lobj is not of type version"); | |
573 | ||
6e449a3a | 574 | mPUSHs(vnumify(lobj)); |
41be1fbd JH |
575 | |
576 | PUTBACK; | |
577 | return; | |
578 | } | |
439cb1c4 JP |
579 | } |
580 | ||
9137345a JP |
581 | XS(XS_version_normal) |
582 | { | |
97aff369 | 583 | dVAR; |
9137345a JP |
584 | dXSARGS; |
585 | if (items < 1) | |
afa74d42 | 586 | croak_xs_usage(cv, "lobj, ..."); |
9137345a JP |
587 | SP -= items; |
588 | { | |
d808b681 | 589 | SV * lobj = ST(0); |
9137345a | 590 | |
573a19fb | 591 | if (sv_isobject(lobj) && sv_derived_from(lobj, "version")) { |
d808b681 | 592 | lobj = SvRV(lobj); |
9137345a JP |
593 | } |
594 | else | |
595 | Perl_croak(aTHX_ "lobj is not of type version"); | |
596 | ||
6e449a3a | 597 | mPUSHs(vnormal(lobj)); |
9137345a JP |
598 | |
599 | PUTBACK; | |
600 | return; | |
601 | } | |
602 | } | |
603 | ||
439cb1c4 JP |
604 | XS(XS_version_vcmp) |
605 | { | |
97aff369 | 606 | dVAR; |
41be1fbd JH |
607 | dXSARGS; |
608 | if (items < 1) | |
afa74d42 | 609 | croak_xs_usage(cv, "lobj, ..."); |
41be1fbd JH |
610 | SP -= items; |
611 | { | |
d808b681 | 612 | SV * lobj = ST(0); |
41be1fbd | 613 | |
573a19fb | 614 | if (sv_isobject(lobj) && sv_derived_from(lobj, "version")) { |
d808b681 | 615 | lobj = SvRV(lobj); |
41be1fbd JH |
616 | } |
617 | else | |
618 | Perl_croak(aTHX_ "lobj is not of type version"); | |
619 | ||
620 | { | |
621 | SV *rs; | |
622 | SV *rvs; | |
623 | SV * robj = ST(1); | |
7452cf6a | 624 | const IV swap = (IV)SvIV(ST(2)); |
41be1fbd | 625 | |
573a19fb | 626 | if ( !sv_isobject(robj) || !sv_derived_from(robj, "version") ) |
41be1fbd | 627 | { |
e3a22e3f GF |
628 | robj = new_version(SvOK(robj) ? robj : newSVpvs_flags("0", SVs_TEMP)); |
629 | sv_2mortal(robj); | |
41be1fbd JH |
630 | } |
631 | rvs = SvRV(robj); | |
632 | ||
633 | if ( swap ) | |
634 | { | |
635 | rs = newSViv(vcmp(rvs,lobj)); | |
636 | } | |
637 | else | |
638 | { | |
639 | rs = newSViv(vcmp(lobj,rvs)); | |
640 | } | |
641 | ||
6e449a3a | 642 | mPUSHs(rs); |
41be1fbd JH |
643 | } |
644 | ||
645 | PUTBACK; | |
646 | return; | |
647 | } | |
439cb1c4 JP |
648 | } |
649 | ||
650 | XS(XS_version_boolean) | |
651 | { | |
97aff369 JH |
652 | dVAR; |
653 | dXSARGS; | |
654 | if (items < 1) | |
afa74d42 | 655 | croak_xs_usage(cv, "lobj, ..."); |
97aff369 | 656 | SP -= items; |
573a19fb | 657 | if (sv_isobject(ST(0)) && sv_derived_from(ST(0), "version")) { |
c4420975 | 658 | SV * const lobj = SvRV(ST(0)); |
bcb2959f FC |
659 | SV * const rs = |
660 | newSViv( vcmp(lobj, | |
661 | sv_2mortal(new_version( | |
662 | sv_2mortal(newSVpvs("0")) | |
663 | )) | |
664 | ) | |
665 | ); | |
6e449a3a | 666 | mPUSHs(rs); |
c4420975 AL |
667 | PUTBACK; |
668 | return; | |
669 | } | |
670 | else | |
671 | Perl_croak(aTHX_ "lobj is not of type version"); | |
439cb1c4 JP |
672 | } |
673 | ||
674 | XS(XS_version_noop) | |
675 | { | |
97aff369 | 676 | dVAR; |
2dfd8427 AL |
677 | dXSARGS; |
678 | if (items < 1) | |
afa74d42 | 679 | croak_xs_usage(cv, "lobj, ..."); |
573a19fb | 680 | if (sv_isobject(ST(0)) && sv_derived_from(ST(0), "version")) |
2dfd8427 AL |
681 | Perl_croak(aTHX_ "operation not supported with version object"); |
682 | else | |
683 | Perl_croak(aTHX_ "lobj is not of type version"); | |
684 | #ifndef HASATTRIBUTE_NORETURN | |
685 | XSRETURN_EMPTY; | |
686 | #endif | |
439cb1c4 JP |
687 | } |
688 | ||
c8d69e4a JP |
689 | XS(XS_version_is_alpha) |
690 | { | |
97aff369 | 691 | dVAR; |
c8d69e4a JP |
692 | dXSARGS; |
693 | if (items != 1) | |
afa74d42 | 694 | croak_xs_usage(cv, "lobj"); |
c8d69e4a | 695 | SP -= items; |
573a19fb | 696 | if (sv_isobject(ST(0)) && sv_derived_from(ST(0), "version")) { |
c4420975 | 697 | SV * const lobj = ST(0); |
ef8f7699 | 698 | if ( hv_exists(MUTABLE_HV(SvRV(lobj)), "alpha", 5 ) ) |
c4420975 AL |
699 | XSRETURN_YES; |
700 | else | |
701 | XSRETURN_NO; | |
c8d69e4a JP |
702 | PUTBACK; |
703 | return; | |
704 | } | |
c4420975 AL |
705 | else |
706 | Perl_croak(aTHX_ "lobj is not of type version"); | |
c8d69e4a JP |
707 | } |
708 | ||
137d6fc0 JP |
709 | XS(XS_version_qv) |
710 | { | |
97aff369 | 711 | dVAR; |
137d6fc0 | 712 | dXSARGS; |
4ed3fda4 | 713 | PERL_UNUSED_ARG(cv); |
137d6fc0 JP |
714 | SP -= items; |
715 | { | |
f941e658 JP |
716 | SV * ver = ST(0); |
717 | SV * rv; | |
ed1db70e BF |
718 | STRLEN len = 0; |
719 | const char * classname = ""; | |
720 | U32 flags = 0; | |
721 | if ( items == 2 && SvOK(ST(1)) ) { | |
722 | ver = ST(1); | |
723 | if ( sv_isobject(ST(0)) ) { /* class called as an object method */ | |
724 | const HV * stash = SvSTASH(SvRV(ST(0))); | |
725 | classname = HvNAME(stash); | |
726 | len = HvNAMELEN(stash); | |
727 | flags = HvNAMEUTF8(stash) ? SVf_UTF8 : 0; | |
728 | } | |
729 | else { | |
730 | classname = SvPV(ST(0), len); | |
731 | flags = SvUTF8(ST(0)); | |
732 | } | |
733 | } | |
f941e658 JP |
734 | if ( !SvVOK(ver) ) { /* not already a v-string */ |
735 | rv = sv_newmortal(); | |
ac0e6a2f RGS |
736 | sv_setsv(rv,ver); /* make a duplicate */ |
737 | upg_version(rv, TRUE); | |
f941e658 JP |
738 | } else { |
739 | rv = sv_2mortal(new_version(ver)); | |
137d6fc0 | 740 | } |
ed1db70e BF |
741 | if ( items == 2 |
742 | && strnNE(classname,"version", len) ) { /* inherited new() */ | |
743 | sv_bless(rv, gv_stashpvn(classname, len, GV_ADD | flags)); | |
744 | } | |
f941e658 JP |
745 | PUSHs(rv); |
746 | } | |
747 | PUTBACK; | |
748 | return; | |
749 | } | |
137d6fc0 | 750 | |
f941e658 JP |
751 | XS(XS_version_is_qv) |
752 | { | |
753 | dVAR; | |
754 | dXSARGS; | |
755 | if (items != 1) | |
756 | croak_xs_usage(cv, "lobj"); | |
757 | SP -= items; | |
573a19fb | 758 | if (sv_isobject(ST(0)) && sv_derived_from(ST(0), "version")) { |
f941e658 JP |
759 | SV * const lobj = ST(0); |
760 | if ( hv_exists(MUTABLE_HV(SvRV(lobj)), "qv", 2 ) ) | |
761 | XSRETURN_YES; | |
762 | else | |
763 | XSRETURN_NO; | |
137d6fc0 JP |
764 | PUTBACK; |
765 | return; | |
766 | } | |
f941e658 JP |
767 | else |
768 | Perl_croak(aTHX_ "lobj is not of type version"); | |
137d6fc0 JP |
769 | } |
770 | ||
8800c35a JH |
771 | XS(XS_utf8_is_utf8) |
772 | { | |
97aff369 | 773 | dVAR; |
41be1fbd JH |
774 | dXSARGS; |
775 | if (items != 1) | |
afa74d42 | 776 | croak_xs_usage(cv, "sv"); |
c4420975 | 777 | else { |
76f73021 GF |
778 | SV * const sv = ST(0); |
779 | SvGETMAGIC(sv); | |
c4420975 AL |
780 | if (SvUTF8(sv)) |
781 | XSRETURN_YES; | |
782 | else | |
783 | XSRETURN_NO; | |
41be1fbd JH |
784 | } |
785 | XSRETURN_EMPTY; | |
8800c35a JH |
786 | } |
787 | ||
1b026014 NIS |
788 | XS(XS_utf8_valid) |
789 | { | |
97aff369 | 790 | dVAR; |
41be1fbd JH |
791 | dXSARGS; |
792 | if (items != 1) | |
afa74d42 | 793 | croak_xs_usage(cv, "sv"); |
c4420975 AL |
794 | else { |
795 | SV * const sv = ST(0); | |
796 | STRLEN len; | |
797 | const char * const s = SvPV_const(sv,len); | |
798 | if (!SvUTF8(sv) || is_utf8_string((const U8*)s,len)) | |
799 | XSRETURN_YES; | |
800 | else | |
801 | XSRETURN_NO; | |
802 | } | |
41be1fbd | 803 | XSRETURN_EMPTY; |
1b026014 NIS |
804 | } |
805 | ||
806 | XS(XS_utf8_encode) | |
807 | { | |
97aff369 | 808 | dVAR; |
1b026014 NIS |
809 | dXSARGS; |
810 | if (items != 1) | |
afa74d42 | 811 | croak_xs_usage(cv, "sv"); |
c4420975 | 812 | sv_utf8_encode(ST(0)); |
1b026014 NIS |
813 | XSRETURN_EMPTY; |
814 | } | |
815 | ||
816 | XS(XS_utf8_decode) | |
817 | { | |
97aff369 | 818 | dVAR; |
1b026014 NIS |
819 | dXSARGS; |
820 | if (items != 1) | |
afa74d42 | 821 | croak_xs_usage(cv, "sv"); |
c4420975 AL |
822 | else { |
823 | SV * const sv = ST(0); | |
b2b7346b | 824 | bool RETVAL; |
c7102404 | 825 | SvPV_force_nolen(sv); |
b2b7346b | 826 | RETVAL = sv_utf8_decode(sv); |
1b026014 | 827 | ST(0) = boolSV(RETVAL); |
1b026014 NIS |
828 | } |
829 | XSRETURN(1); | |
830 | } | |
831 | ||
832 | XS(XS_utf8_upgrade) | |
833 | { | |
97aff369 | 834 | dVAR; |
1b026014 NIS |
835 | dXSARGS; |
836 | if (items != 1) | |
afa74d42 | 837 | croak_xs_usage(cv, "sv"); |
c4420975 AL |
838 | else { |
839 | SV * const sv = ST(0); | |
1b026014 NIS |
840 | STRLEN RETVAL; |
841 | dXSTARG; | |
842 | ||
843 | RETVAL = sv_utf8_upgrade(sv); | |
844 | XSprePUSH; PUSHi((IV)RETVAL); | |
845 | } | |
846 | XSRETURN(1); | |
847 | } | |
848 | ||
849 | XS(XS_utf8_downgrade) | |
850 | { | |
97aff369 | 851 | dVAR; |
1b026014 NIS |
852 | dXSARGS; |
853 | if (items < 1 || items > 2) | |
afa74d42 | 854 | croak_xs_usage(cv, "sv, failok=0"); |
c4420975 AL |
855 | else { |
856 | SV * const sv = ST(0); | |
6867be6d AL |
857 | const bool failok = (items < 2) ? 0 : (int)SvIV(ST(1)); |
858 | const bool RETVAL = sv_utf8_downgrade(sv, failok); | |
1b026014 | 859 | |
1b026014 | 860 | ST(0) = boolSV(RETVAL); |
1b026014 NIS |
861 | } |
862 | XSRETURN(1); | |
863 | } | |
864 | ||
865 | XS(XS_utf8_native_to_unicode) | |
866 | { | |
97aff369 | 867 | dVAR; |
1b026014 | 868 | dXSARGS; |
6867be6d | 869 | const UV uv = SvUV(ST(0)); |
b7953727 JH |
870 | |
871 | if (items > 1) | |
afa74d42 | 872 | croak_xs_usage(cv, "sv"); |
b7953727 | 873 | |
1b026014 NIS |
874 | ST(0) = sv_2mortal(newSViv(NATIVE_TO_UNI(uv))); |
875 | XSRETURN(1); | |
876 | } | |
877 | ||
878 | XS(XS_utf8_unicode_to_native) | |
879 | { | |
97aff369 | 880 | dVAR; |
1b026014 | 881 | dXSARGS; |
6867be6d | 882 | const UV uv = SvUV(ST(0)); |
b7953727 JH |
883 | |
884 | if (items > 1) | |
afa74d42 | 885 | croak_xs_usage(cv, "sv"); |
b7953727 | 886 | |
1b026014 NIS |
887 | ST(0) = sv_2mortal(newSViv(UNI_TO_NATIVE(uv))); |
888 | XSRETURN(1); | |
889 | } | |
890 | ||
14a976d6 | 891 | XS(XS_Internals_SvREADONLY) /* This is dangerous stuff. */ |
29569577 | 892 | { |
97aff369 | 893 | dVAR; |
29569577 | 894 | dXSARGS; |
80b6a949 AB |
895 | SV * const svz = ST(0); |
896 | SV * sv; | |
58c0efa5 | 897 | PERL_UNUSED_ARG(cv); |
6867be6d | 898 | |
80b6a949 AB |
899 | /* [perl #77776] - called as &foo() not foo() */ |
900 | if (!SvROK(svz)) | |
901 | croak_xs_usage(cv, "SCALAR[, ON]"); | |
902 | ||
903 | sv = SvRV(svz); | |
904 | ||
29569577 | 905 | if (items == 1) { |
3e89ba19 | 906 | if (SvREADONLY(sv) && !SvIsCOW(sv)) |
29569577 JH |
907 | XSRETURN_YES; |
908 | else | |
909 | XSRETURN_NO; | |
910 | } | |
911 | else if (items == 2) { | |
912 | if (SvTRUE(ST(1))) { | |
3e89ba19 | 913 | if (SvIsCOW(sv)) sv_force_normal(sv); |
29569577 JH |
914 | SvREADONLY_on(sv); |
915 | XSRETURN_YES; | |
916 | } | |
917 | else { | |
14a976d6 | 918 | /* I hope you really know what you are doing. */ |
3e89ba19 | 919 | if (!SvIsCOW(sv)) SvREADONLY_off(sv); |
29569577 JH |
920 | XSRETURN_NO; |
921 | } | |
922 | } | |
14a976d6 | 923 | XSRETURN_UNDEF; /* Can't happen. */ |
29569577 JH |
924 | } |
925 | ||
14a976d6 | 926 | XS(XS_Internals_SvREFCNT) /* This is dangerous stuff. */ |
29569577 | 927 | { |
97aff369 | 928 | dVAR; |
29569577 | 929 | dXSARGS; |
80b6a949 AB |
930 | SV * const svz = ST(0); |
931 | SV * sv; | |
58c0efa5 | 932 | PERL_UNUSED_ARG(cv); |
6867be6d | 933 | |
80b6a949 AB |
934 | /* [perl #77776] - called as &foo() not foo() */ |
935 | if (!SvROK(svz)) | |
936 | croak_xs_usage(cv, "SCALAR[, REFCOUNT]"); | |
937 | ||
938 | sv = SvRV(svz); | |
939 | ||
29569577 | 940 | if (items == 1) |
691f1758 | 941 | XSRETURN_UV(SvREFCNT(sv) - 1); /* Minus the ref created for us. */ |
29569577 | 942 | else if (items == 2) { |
14a976d6 | 943 | /* I hope you really know what you are doing. */ |
691f1758 TC |
944 | SvREFCNT(sv) = SvUV(ST(1)) + 1; /* we free one ref on exit */ |
945 | XSRETURN_UV(SvREFCNT(sv) - 1); | |
29569577 | 946 | } |
14a976d6 | 947 | XSRETURN_UNDEF; /* Can't happen. */ |
29569577 JH |
948 | } |
949 | ||
f044d0d1 | 950 | XS(XS_Internals_hv_clear_placehold) |
dfd4ef2f | 951 | { |
97aff369 | 952 | dVAR; |
dfd4ef2f | 953 | dXSARGS; |
6867be6d | 954 | |
80b6a949 | 955 | if (items != 1 || !SvROK(ST(0))) |
afa74d42 | 956 | croak_xs_usage(cv, "hv"); |
c4420975 | 957 | else { |
ef8f7699 | 958 | HV * const hv = MUTABLE_HV(SvRV(ST(0))); |
c4420975 AL |
959 | hv_clear_placeholders(hv); |
960 | XSRETURN(0); | |
961 | } | |
dfd4ef2f | 962 | } |
39f7a870 JH |
963 | |
964 | XS(XS_PerlIO_get_layers) | |
965 | { | |
97aff369 | 966 | dVAR; |
39f7a870 JH |
967 | dXSARGS; |
968 | if (items < 1 || items % 2 == 0) | |
afa74d42 | 969 | croak_xs_usage(cv, "filehandle[,args]"); |
5fef3b4a | 970 | #ifdef USE_PERLIO |
39f7a870 JH |
971 | { |
972 | SV * sv; | |
973 | GV * gv; | |
974 | IO * io; | |
975 | bool input = TRUE; | |
976 | bool details = FALSE; | |
977 | ||
978 | if (items > 1) { | |
c4420975 | 979 | SV * const *svp; |
39f7a870 | 980 | for (svp = MARK + 2; svp <= SP; svp += 2) { |
c4420975 AL |
981 | SV * const * const varp = svp; |
982 | SV * const * const valp = svp + 1; | |
39f7a870 | 983 | STRLEN klen; |
c4420975 | 984 | const char * const key = SvPV_const(*varp, klen); |
39f7a870 JH |
985 | |
986 | switch (*key) { | |
987 | case 'i': | |
988 | if (klen == 5 && memEQ(key, "input", 5)) { | |
989 | input = SvTRUE(*valp); | |
990 | break; | |
991 | } | |
992 | goto fail; | |
993 | case 'o': | |
994 | if (klen == 6 && memEQ(key, "output", 6)) { | |
995 | input = !SvTRUE(*valp); | |
996 | break; | |
997 | } | |
998 | goto fail; | |
999 | case 'd': | |
1000 | if (klen == 7 && memEQ(key, "details", 7)) { | |
1001 | details = SvTRUE(*valp); | |
1002 | break; | |
1003 | } | |
1004 | goto fail; | |
1005 | default: | |
1006 | fail: | |
1007 | Perl_croak(aTHX_ | |
1008 | "get_layers: unknown argument '%s'", | |
1009 | key); | |
1010 | } | |
1011 | } | |
1012 | ||
1013 | SP -= (items - 1); | |
1014 | } | |
1015 | ||
1016 | sv = POPs; | |
7f9aa7d3 | 1017 | gv = MAYBE_DEREF_GV(sv); |
39f7a870 | 1018 | |
3825652d | 1019 | if (!gv && !SvROK(sv)) |
7f9aa7d3 | 1020 | gv = gv_fetchsv_nomg(sv, 0, SVt_PVIO); |
39f7a870 JH |
1021 | |
1022 | if (gv && (io = GvIO(gv))) { | |
c4420975 | 1023 | AV* const av = PerlIO_get_layers(aTHX_ input ? |
39f7a870 JH |
1024 | IoIFP(io) : IoOFP(io)); |
1025 | I32 i; | |
c4420975 | 1026 | const I32 last = av_len(av); |
39f7a870 JH |
1027 | I32 nitem = 0; |
1028 | ||
1029 | for (i = last; i >= 0; i -= 3) { | |
c4420975 AL |
1030 | SV * const * const namsvp = av_fetch(av, i - 2, FALSE); |
1031 | SV * const * const argsvp = av_fetch(av, i - 1, FALSE); | |
1032 | SV * const * const flgsvp = av_fetch(av, i, FALSE); | |
39f7a870 | 1033 | |
c4420975 AL |
1034 | const bool namok = namsvp && *namsvp && SvPOK(*namsvp); |
1035 | const bool argok = argsvp && *argsvp && SvPOK(*argsvp); | |
1036 | const bool flgok = flgsvp && *flgsvp && SvIOK(*flgsvp); | |
39f7a870 JH |
1037 | |
1038 | if (details) { | |
92e45a3e NC |
1039 | /* Indents of 5? Yuck. */ |
1040 | /* We know that PerlIO_get_layers creates a new SV for | |
1041 | the name and flags, so we can just take a reference | |
1042 | and "steal" it when we free the AV below. */ | |
ec3bab8e | 1043 | XPUSHs(namok |
92e45a3e | 1044 | ? sv_2mortal(SvREFCNT_inc_simple_NN(*namsvp)) |
ec3bab8e NC |
1045 | : &PL_sv_undef); |
1046 | XPUSHs(argok | |
92e45a3e NC |
1047 | ? newSVpvn_flags(SvPVX_const(*argsvp), |
1048 | SvCUR(*argsvp), | |
1049 | (SvUTF8(*argsvp) ? SVf_UTF8 : 0) | |
1050 | | SVs_TEMP) | |
1051 | : &PL_sv_undef); | |
96ccaf53 | 1052 | XPUSHs(flgok |
92e45a3e | 1053 | ? sv_2mortal(SvREFCNT_inc_simple_NN(*flgsvp)) |
ec3bab8e | 1054 | : &PL_sv_undef); |
39f7a870 JH |
1055 | nitem += 3; |
1056 | } | |
1057 | else { | |
1058 | if (namok && argok) | |
1eb9e81d | 1059 | XPUSHs(sv_2mortal(Perl_newSVpvf(aTHX_ "%"SVf"(%"SVf")", |
be2597df | 1060 | SVfARG(*namsvp), |
1eb9e81d | 1061 | SVfARG(*argsvp)))); |
39f7a870 | 1062 | else if (namok) |
92e45a3e | 1063 | XPUSHs(sv_2mortal(SvREFCNT_inc_simple_NN(*namsvp))); |
39f7a870 JH |
1064 | else |
1065 | XPUSHs(&PL_sv_undef); | |
1066 | nitem++; | |
1067 | if (flgok) { | |
c4420975 | 1068 | const IV flags = SvIVX(*flgsvp); |
39f7a870 JH |
1069 | |
1070 | if (flags & PERLIO_F_UTF8) { | |
84bafc02 | 1071 | XPUSHs(newSVpvs_flags("utf8", SVs_TEMP)); |
39f7a870 JH |
1072 | nitem++; |
1073 | } | |
1074 | } | |
1075 | } | |
1076 | } | |
1077 | ||
1078 | SvREFCNT_dec(av); | |
1079 | ||
1080 | XSRETURN(nitem); | |
1081 | } | |
1082 | } | |
5fef3b4a | 1083 | #endif |
39f7a870 JH |
1084 | |
1085 | XSRETURN(0); | |
1086 | } | |
1087 | ||
9a7034eb | 1088 | XS(XS_Internals_hash_seed) |
c910b28a | 1089 | { |
97aff369 | 1090 | dVAR; |
c85d3f85 NC |
1091 | /* Using dXSARGS would also have dITEM and dSP, |
1092 | * which define 2 unused local variables. */ | |
557b887a | 1093 | dAXMARK; |
53c1dcc0 | 1094 | PERL_UNUSED_ARG(cv); |
ad73156c | 1095 | PERL_UNUSED_VAR(mark); |
81eaca17 | 1096 | XSRETURN_UV(PERL_HASH_SEED); |
c910b28a JH |
1097 | } |
1098 | ||
008fb0c0 | 1099 | XS(XS_Internals_rehash_seed) |
8e90d776 | 1100 | { |
97aff369 | 1101 | dVAR; |
8e90d776 NC |
1102 | /* Using dXSARGS would also have dITEM and dSP, |
1103 | * which define 2 unused local variables. */ | |
557b887a | 1104 | dAXMARK; |
53c1dcc0 | 1105 | PERL_UNUSED_ARG(cv); |
ad73156c | 1106 | PERL_UNUSED_VAR(mark); |
008fb0c0 | 1107 | XSRETURN_UV(PL_rehash_seed); |
8e90d776 NC |
1108 | } |
1109 | ||
05619474 NC |
1110 | XS(XS_Internals_HvREHASH) /* Subject to change */ |
1111 | { | |
97aff369 | 1112 | dVAR; |
05619474 | 1113 | dXSARGS; |
93c51217 | 1114 | PERL_UNUSED_ARG(cv); |
05619474 | 1115 | if (SvROK(ST(0))) { |
ef8f7699 | 1116 | const HV * const hv = (const HV *) SvRV(ST(0)); |
05619474 NC |
1117 | if (items == 1 && SvTYPE(hv) == SVt_PVHV) { |
1118 | if (HvREHASH(hv)) | |
1119 | XSRETURN_YES; | |
1120 | else | |
1121 | XSRETURN_NO; | |
1122 | } | |
1123 | } | |
1124 | Perl_croak(aTHX_ "Internals::HvREHASH $hashref"); | |
1125 | } | |
241d1a3b | 1126 | |
80305961 YO |
1127 | XS(XS_re_is_regexp) |
1128 | { | |
1129 | dVAR; | |
1130 | dXSARGS; | |
f7e71195 AB |
1131 | PERL_UNUSED_VAR(cv); |
1132 | ||
80305961 | 1133 | if (items != 1) |
afa74d42 | 1134 | croak_xs_usage(cv, "sv"); |
f7e71195 | 1135 | |
f7e71195 AB |
1136 | if (SvRXOK(ST(0))) { |
1137 | XSRETURN_YES; | |
1138 | } else { | |
1139 | XSRETURN_NO; | |
80305961 YO |
1140 | } |
1141 | } | |
1142 | ||
192b9cd1 | 1143 | XS(XS_re_regnames_count) |
80305961 | 1144 | { |
192b9cd1 AB |
1145 | REGEXP *rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1146 | SV * ret; | |
80305961 YO |
1147 | dVAR; |
1148 | dXSARGS; | |
192b9cd1 AB |
1149 | |
1150 | if (items != 0) | |
afa74d42 | 1151 | croak_xs_usage(cv, ""); |
192b9cd1 AB |
1152 | |
1153 | SP -= items; | |
fdae9473 | 1154 | PUTBACK; |
192b9cd1 AB |
1155 | |
1156 | if (!rx) | |
1157 | XSRETURN_UNDEF; | |
1158 | ||
1159 | ret = CALLREG_NAMED_BUFF_COUNT(rx); | |
1160 | ||
1161 | SPAGAIN; | |
fdae9473 NC |
1162 | PUSHs(ret ? sv_2mortal(ret) : &PL_sv_undef); |
1163 | XSRETURN(1); | |
192b9cd1 AB |
1164 | } |
1165 | ||
1166 | XS(XS_re_regname) | |
1167 | { | |
1168 | dVAR; | |
1169 | dXSARGS; | |
1170 | REGEXP * rx; | |
1171 | U32 flags; | |
1172 | SV * ret; | |
1173 | ||
28d8d7f4 | 1174 | if (items < 1 || items > 2) |
afa74d42 | 1175 | croak_xs_usage(cv, "name[, all ]"); |
192b9cd1 | 1176 | |
80305961 | 1177 | SP -= items; |
fdae9473 | 1178 | PUTBACK; |
80305961 | 1179 | |
192b9cd1 AB |
1180 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1181 | ||
1182 | if (!rx) | |
1183 | XSRETURN_UNDEF; | |
1184 | ||
1185 | if (items == 2 && SvTRUE(ST(1))) { | |
f1b875a0 | 1186 | flags = RXapif_ALL; |
192b9cd1 | 1187 | } else { |
f1b875a0 | 1188 | flags = RXapif_ONE; |
80305961 | 1189 | } |
f1b875a0 | 1190 | ret = CALLREG_NAMED_BUFF_FETCH(rx, ST(0), (flags | RXapif_REGNAME)); |
192b9cd1 | 1191 | |
fdae9473 NC |
1192 | SPAGAIN; |
1193 | PUSHs(ret ? sv_2mortal(ret) : &PL_sv_undef); | |
1194 | XSRETURN(1); | |
80305961 YO |
1195 | } |
1196 | ||
192b9cd1 | 1197 | |
80305961 YO |
1198 | XS(XS_re_regnames) |
1199 | { | |
192b9cd1 | 1200 | dVAR; |
80305961 | 1201 | dXSARGS; |
192b9cd1 AB |
1202 | REGEXP * rx; |
1203 | U32 flags; | |
1204 | SV *ret; | |
1205 | AV *av; | |
1206 | I32 length; | |
1207 | I32 i; | |
1208 | SV **entry; | |
1209 | ||
1210 | if (items > 1) | |
afa74d42 | 1211 | croak_xs_usage(cv, "[all]"); |
192b9cd1 AB |
1212 | |
1213 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; | |
1214 | ||
1215 | if (!rx) | |
1216 | XSRETURN_UNDEF; | |
1217 | ||
1218 | if (items == 1 && SvTRUE(ST(0))) { | |
f1b875a0 | 1219 | flags = RXapif_ALL; |
192b9cd1 | 1220 | } else { |
f1b875a0 | 1221 | flags = RXapif_ONE; |
192b9cd1 AB |
1222 | } |
1223 | ||
80305961 | 1224 | SP -= items; |
fdae9473 | 1225 | PUTBACK; |
80305961 | 1226 | |
f1b875a0 | 1227 | ret = CALLREG_NAMED_BUFF_ALL(rx, (flags | RXapif_REGNAMES)); |
192b9cd1 AB |
1228 | |
1229 | SPAGAIN; | |
1230 | ||
192b9cd1 AB |
1231 | if (!ret) |
1232 | XSRETURN_UNDEF; | |
1233 | ||
502c6561 | 1234 | av = MUTABLE_AV(SvRV(ret)); |
192b9cd1 AB |
1235 | length = av_len(av); |
1236 | ||
1237 | for (i = 0; i <= length; i++) { | |
1238 | entry = av_fetch(av, i, FALSE); | |
1239 | ||
1240 | if (!entry) | |
1241 | Perl_croak(aTHX_ "NULL array element in re::regnames()"); | |
1242 | ||
ec83ea38 | 1243 | mXPUSHs(SvREFCNT_inc_simple_NN(*entry)); |
80305961 | 1244 | } |
ec83ea38 MHM |
1245 | |
1246 | SvREFCNT_dec(ret); | |
1247 | ||
192b9cd1 AB |
1248 | PUTBACK; |
1249 | return; | |
80305961 YO |
1250 | } |
1251 | ||
192c1e27 JH |
1252 | XS(XS_re_regexp_pattern) |
1253 | { | |
1254 | dVAR; | |
1255 | dXSARGS; | |
1256 | REGEXP *re; | |
192c1e27 JH |
1257 | |
1258 | if (items != 1) | |
afa74d42 | 1259 | croak_xs_usage(cv, "sv"); |
192c1e27 JH |
1260 | |
1261 | SP -= items; | |
1262 | ||
1263 | /* | |
1264 | Checks if a reference is a regex or not. If the parameter is | |
1265 | not a ref, or is not the result of a qr// then returns false | |
1266 | in scalar context and an empty list in list context. | |
1267 | Otherwise in list context it returns the pattern and the | |
1268 | modifiers, in scalar context it returns the pattern just as it | |
1269 | would if the qr// was stringified normally, regardless as | |
486ec47a | 1270 | to the class of the variable and any stringification overloads |
192c1e27 JH |
1271 | on the object. |
1272 | */ | |
1273 | ||
1274 | if ((re = SvRX(ST(0)))) /* assign deliberate */ | |
1275 | { | |
22c985d5 | 1276 | /* Houston, we have a regex! */ |
192c1e27 | 1277 | SV *pattern; |
192c1e27 JH |
1278 | |
1279 | if ( GIMME_V == G_ARRAY ) { | |
9de15fec | 1280 | STRLEN left = 0; |
a62b1201 | 1281 | char reflags[sizeof(INT_PAT_MODS) + MAX_CHARSET_NAME_LENGTH]; |
69af1167 SH |
1282 | const char *fptr; |
1283 | char ch; | |
1284 | U16 match_flags; | |
1285 | ||
192c1e27 JH |
1286 | /* |
1287 | we are in list context so stringify | |
1288 | the modifiers that apply. We ignore "negative | |
a62b1201 | 1289 | modifiers" in this scenario, and the default character set |
192c1e27 JH |
1290 | */ |
1291 | ||
a62b1201 KW |
1292 | if (get_regex_charset(RX_EXTFLAGS(re)) != REGEX_DEPENDS_CHARSET) { |
1293 | STRLEN len; | |
1294 | const char* const name = get_regex_charset_name(RX_EXTFLAGS(re), | |
1295 | &len); | |
1296 | Copy(name, reflags + left, len, char); | |
1297 | left += len; | |
9de15fec | 1298 | } |
69af1167 | 1299 | fptr = INT_PAT_MODS; |
73134a2e | 1300 | match_flags = (U16)((RX_EXTFLAGS(re) & RXf_PMf_COMPILETIME) |
192c1e27 JH |
1301 | >> RXf_PMf_STD_PMMOD_SHIFT); |
1302 | ||
1303 | while((ch = *fptr++)) { | |
1304 | if(match_flags & 1) { | |
1305 | reflags[left++] = ch; | |
1306 | } | |
1307 | match_flags >>= 1; | |
1308 | } | |
1309 | ||
fb632ce3 NC |
1310 | pattern = newSVpvn_flags(RX_PRECOMP(re),RX_PRELEN(re), |
1311 | (RX_UTF8(re) ? SVf_UTF8 : 0) | SVs_TEMP); | |
192c1e27 JH |
1312 | |
1313 | /* return the pattern and the modifiers */ | |
1314 | XPUSHs(pattern); | |
fb632ce3 | 1315 | XPUSHs(newSVpvn_flags(reflags, left, SVs_TEMP)); |
192c1e27 JH |
1316 | XSRETURN(2); |
1317 | } else { | |
1318 | /* Scalar, so use the string that Perl would return */ | |
1319 | /* return the pattern in (?msix:..) format */ | |
1320 | #if PERL_VERSION >= 11 | |
daba3364 | 1321 | pattern = sv_2mortal(newSVsv(MUTABLE_SV(re))); |
192c1e27 | 1322 | #else |
fb632ce3 NC |
1323 | pattern = newSVpvn_flags(RX_WRAPPED(re), RX_WRAPLEN(re), |
1324 | (RX_UTF8(re) ? SVf_UTF8 : 0) | SVs_TEMP); | |
192c1e27 JH |
1325 | #endif |
1326 | XPUSHs(pattern); | |
1327 | XSRETURN(1); | |
1328 | } | |
1329 | } else { | |
1330 | /* It ain't a regexp folks */ | |
1331 | if ( GIMME_V == G_ARRAY ) { | |
1332 | /* return the empty list */ | |
1333 | XSRETURN_UNDEF; | |
1334 | } else { | |
1335 | /* Because of the (?:..) wrapping involved in a | |
1336 | stringified pattern it is impossible to get a | |
1337 | result for a real regexp that would evaluate to | |
1338 | false. Therefore we can return PL_sv_no to signify | |
1339 | that the object is not a regex, this means that one | |
1340 | can say | |
1341 | ||
1342 | if (regex($might_be_a_regex) eq '(?:foo)') { } | |
1343 | ||
1344 | and not worry about undefined values. | |
1345 | */ | |
1346 | XSRETURN_NO; | |
1347 | } | |
1348 | } | |
1349 | /* NOT-REACHED */ | |
1350 | } | |
1351 | ||
eff5b9d5 NC |
1352 | struct xsub_details { |
1353 | const char *name; | |
1354 | XSUBADDR_t xsub; | |
1355 | const char *proto; | |
1356 | }; | |
1357 | ||
1358 | struct xsub_details details[] = { | |
1359 | {"UNIVERSAL::isa", XS_UNIVERSAL_isa, NULL}, | |
1360 | {"UNIVERSAL::can", XS_UNIVERSAL_can, NULL}, | |
1361 | {"UNIVERSAL::DOES", XS_UNIVERSAL_DOES, NULL}, | |
1362 | {"UNIVERSAL::VERSION", XS_UNIVERSAL_VERSION, NULL}, | |
1363 | {"version::()", XS_version_noop, NULL}, | |
1364 | {"version::new", XS_version_new, NULL}, | |
1365 | {"version::parse", XS_version_new, NULL}, | |
1366 | {"version::(\"\"", XS_version_stringify, NULL}, | |
1367 | {"version::stringify", XS_version_stringify, NULL}, | |
1368 | {"version::(0+", XS_version_numify, NULL}, | |
1369 | {"version::numify", XS_version_numify, NULL}, | |
1370 | {"version::normal", XS_version_normal, NULL}, | |
1371 | {"version::(cmp", XS_version_vcmp, NULL}, | |
1372 | {"version::(<=>", XS_version_vcmp, NULL}, | |
1373 | {"version::vcmp", XS_version_vcmp, NULL}, | |
1374 | {"version::(bool", XS_version_boolean, NULL}, | |
1375 | {"version::boolean", XS_version_boolean, NULL}, | |
43d9ecf9 JP |
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::(+=", XS_version_noop, NULL}, | |
1381 | {"version::(-=", XS_version_noop, NULL}, | |
1382 | {"version::(*=", XS_version_noop, NULL}, | |
1383 | {"version::(/=", XS_version_noop, NULL}, | |
1384 | {"version::(abs", XS_version_noop, NULL}, | |
eff5b9d5 NC |
1385 | {"version::(nomethod", XS_version_noop, NULL}, |
1386 | {"version::noop", XS_version_noop, NULL}, | |
1387 | {"version::is_alpha", XS_version_is_alpha, NULL}, | |
1388 | {"version::qv", XS_version_qv, NULL}, | |
1389 | {"version::declare", XS_version_qv, NULL}, | |
1390 | {"version::is_qv", XS_version_is_qv, NULL}, | |
1391 | {"utf8::is_utf8", XS_utf8_is_utf8, NULL}, | |
1392 | {"utf8::valid", XS_utf8_valid, NULL}, | |
1393 | {"utf8::encode", XS_utf8_encode, NULL}, | |
1394 | {"utf8::decode", XS_utf8_decode, NULL}, | |
1395 | {"utf8::upgrade", XS_utf8_upgrade, NULL}, | |
1396 | {"utf8::downgrade", XS_utf8_downgrade, NULL}, | |
1397 | {"utf8::native_to_unicode", XS_utf8_native_to_unicode, NULL}, | |
1398 | {"utf8::unicode_to_native", XS_utf8_unicode_to_native, NULL}, | |
1399 | {"Internals::SvREADONLY", XS_Internals_SvREADONLY, "\\[$%@];$"}, | |
1400 | {"Internals::SvREFCNT", XS_Internals_SvREFCNT, "\\[$%@];$"}, | |
1401 | {"Internals::hv_clear_placeholders", XS_Internals_hv_clear_placehold, "\\%"}, | |
1402 | {"PerlIO::get_layers", XS_PerlIO_get_layers, "*;@"}, | |
1403 | {"Internals::hash_seed", XS_Internals_hash_seed, ""}, | |
1404 | {"Internals::rehash_seed", XS_Internals_rehash_seed, ""}, | |
1405 | {"Internals::HvREHASH", XS_Internals_HvREHASH, "\\%"}, | |
1406 | {"re::is_regexp", XS_re_is_regexp, "$"}, | |
1407 | {"re::regname", XS_re_regname, ";$$"}, | |
1408 | {"re::regnames", XS_re_regnames, ";$"}, | |
1409 | {"re::regnames_count", XS_re_regnames_count, ""}, | |
1410 | {"re::regexp_pattern", XS_re_regexp_pattern, "$"}, | |
eff5b9d5 NC |
1411 | }; |
1412 | ||
1413 | void | |
1414 | Perl_boot_core_UNIVERSAL(pTHX) | |
1415 | { | |
1416 | dVAR; | |
1417 | static const char file[] = __FILE__; | |
1418 | struct xsub_details *xsub = details; | |
1419 | const struct xsub_details *end | |
1420 | = details + sizeof(details) / sizeof(details[0]); | |
1421 | ||
1422 | do { | |
1423 | newXS_flags(xsub->name, xsub->xsub, file, xsub->proto, 0); | |
1424 | } while (++xsub < end); | |
1425 | ||
eff5b9d5 | 1426 | /* Providing a Regexp::DESTROY fixes #21347. See test in t/op/ref.t */ |
bad4ae38 FC |
1427 | { |
1428 | CV * const cv = | |
1429 | newCONSTSUB(get_hv("Regexp::", GV_ADD), "DESTROY", NULL); | |
1430 | Safefree(CvFILE(cv)); | |
1431 | CvFILE(cv) = (char *)file; | |
1432 | CvDYNFILE_off(cv); | |
1433 | } | |
eff5b9d5 | 1434 | } |
80305961 | 1435 | |
241d1a3b NC |
1436 | /* |
1437 | * Local variables: | |
1438 | * c-indentation-style: bsd | |
1439 | * c-basic-offset: 4 | |
14d04a33 | 1440 | * indent-tabs-mode: nil |
241d1a3b NC |
1441 | * End: |
1442 | * | |
14d04a33 | 1443 | * ex: set ts=8 sts=4 sw=4 et: |
37442d52 | 1444 | */ |