Commit | Line | Data |
d6376244 |
1 | /* universal.c |
2 | * |
b5f8cc5c |
3 | * Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, |
fdf8c088 |
4 | * 2005, 2006, 2007 by Larry Wall and others |
d6376244 |
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 | /* |
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 story |
15 | */ |
16 | |
166f8a29 |
17 | /* This file contains the code that implements the functions in Perl's |
18 | * UNIVERSAL package, such as UNIVERSAL->can(). |
19 | */ |
20 | |
6d4a7be2 |
21 | #include "EXTERN.h" |
864dbfa3 |
22 | #define PERL_IN_UNIVERSAL_C |
6d4a7be2 |
23 | #include "perl.h" |
6d4a7be2 |
24 | |
39f7a870 |
25 | #ifdef USE_PERLIO |
26 | #include "perliol.h" /* For the PERLIO_F_XXX */ |
27 | #endif |
28 | |
6d4a7be2 |
29 | /* |
30 | * Contributed by Graham Barr <Graham.Barr@tiuk.ti.com> |
31 | * The main guts of traverse_isa was actually copied from gv_fetchmeth |
32 | */ |
33 | |
a9ec700e |
34 | STATIC bool |
34692224 |
35 | S_isa_lookup(pTHX_ HV *stash, const char *name, const HV* const name_stash, |
301daebc |
36 | int len, int level) |
6d4a7be2 |
37 | { |
97aff369 |
38 | dVAR; |
6d4a7be2 |
39 | AV* av; |
40 | GV* gv; |
41 | GV** gvp; |
5c284bb0 |
42 | HV* hv = NULL; |
c445ea15 |
43 | SV* subgen = NULL; |
bfcb3514 |
44 | const char *hvname; |
6d4a7be2 |
45 | |
301daebc |
46 | /* A stash/class can go by many names (ie. User == main::User), so |
47 | we compare the stash itself just in case */ |
34692224 |
48 | if (name_stash && ((const HV *)stash == name_stash)) |
a9ec700e |
49 | return TRUE; |
6d4a7be2 |
50 | |
bfcb3514 |
51 | hvname = HvNAME_get(stash); |
52 | |
53 | if (strEQ(hvname, name)) |
a9ec700e |
54 | return TRUE; |
6d4a7be2 |
55 | |
a1d407e8 |
56 | if (strEQ(name, "UNIVERSAL")) |
a9ec700e |
57 | return TRUE; |
a1d407e8 |
58 | |
6d4a7be2 |
59 | if (level > 100) |
46e4b22b |
60 | Perl_croak(aTHX_ "Recursive inheritance detected in package '%s'", |
bfcb3514 |
61 | hvname); |
6d4a7be2 |
62 | |
017a3ce5 |
63 | gvp = (GV**)hv_fetchs(stash, "::ISA::CACHE::", FALSE); |
6d4a7be2 |
64 | |
9e0d86f8 |
65 | if (gvp && (gv = *gvp) && isGV_with_GP(gv) && (subgen = GvSV(gv)) |
46e4b22b |
66 | && (hv = GvHV(gv))) |
67 | { |
eb160463 |
68 | if (SvIV(subgen) == (IV)PL_sub_generation) { |
7452cf6a |
69 | SV** const svp = (SV**)hv_fetch(hv, name, len, FALSE); |
34692224 |
70 | if (svp) { |
71 | SV * const sv = *svp; |
17bcfd59 |
72 | #ifdef DEBUGGING |
34692224 |
73 | if (sv != &PL_sv_undef) |
74 | DEBUG_o( Perl_deb(aTHX_ "Using cached ISA %s for package %s\n", |
75 | name, hvname) ); |
17bcfd59 |
76 | #endif |
a9ec700e |
77 | return (sv == &PL_sv_yes); |
46e4b22b |
78 | } |
79 | } |
80 | else { |
81 | DEBUG_o( Perl_deb(aTHX_ "ISA Cache in package %s is stale\n", |
bfcb3514 |
82 | hvname) ); |
46e4b22b |
83 | hv_clear(hv); |
84 | sv_setiv(subgen, PL_sub_generation); |
85 | } |
6d4a7be2 |
86 | } |
87 | |
017a3ce5 |
88 | gvp = (GV**)hv_fetchs(stash, "ISA", FALSE); |
46e4b22b |
89 | |
9e0d86f8 |
90 | if (gvp && (gv = *gvp) && isGV_with_GP(gv) && (av = GvAV(gv))) { |
46e4b22b |
91 | if (!hv || !subgen) { |
017a3ce5 |
92 | gvp = (GV**)hv_fetchs(stash, "::ISA::CACHE::", TRUE); |
6d4a7be2 |
93 | |
94 | gv = *gvp; |
95 | |
96 | if (SvTYPE(gv) != SVt_PVGV) |
97 | gv_init(gv, stash, "::ISA::CACHE::", 14, TRUE); |
98 | |
46e4b22b |
99 | if (!hv) |
100 | hv = GvHVn(gv); |
101 | if (!subgen) { |
102 | subgen = newSViv(PL_sub_generation); |
103 | GvSV(gv) = subgen; |
104 | } |
6d4a7be2 |
105 | } |
46e4b22b |
106 | if (hv) { |
6d4a7be2 |
107 | SV** svp = AvARRAY(av); |
93965878 |
108 | /* NOTE: No support for tied ISA */ |
109 | I32 items = AvFILLp(av) + 1; |
6d4a7be2 |
110 | while (items--) { |
c4420975 |
111 | SV* const sv = *svp++; |
da51bb9b |
112 | HV* const basestash = gv_stashsv(sv, 0); |
6d4a7be2 |
113 | if (!basestash) { |
599cee73 |
114 | if (ckWARN(WARN_MISC)) |
9014280d |
115 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
bfcb3514 |
116 | "Can't locate package %"SVf" for @%s::ISA", |
be2597df |
117 | SVfARG(sv), hvname); |
6d4a7be2 |
118 | continue; |
119 | } |
a9ec700e |
120 | if (isa_lookup(basestash, name, name_stash, len, level + 1)) { |
3280af22 |
121 | (void)hv_store(hv,name,len,&PL_sv_yes,0); |
a9ec700e |
122 | return TRUE; |
6d4a7be2 |
123 | } |
124 | } |
3280af22 |
125 | (void)hv_store(hv,name,len,&PL_sv_no,0); |
6d4a7be2 |
126 | } |
127 | } |
a9ec700e |
128 | return FALSE; |
6d4a7be2 |
129 | } |
130 | |
954c1994 |
131 | /* |
ccfc67b7 |
132 | =head1 SV Manipulation Functions |
133 | |
954c1994 |
134 | =for apidoc sv_derived_from |
135 | |
6885da0e |
136 | Returns a boolean indicating whether the SV is derived from the specified class |
137 | I<at the C level>. To check derivation at the Perl level, call C<isa()> as a |
138 | normal Perl method. |
954c1994 |
139 | |
140 | =cut |
141 | */ |
142 | |
55497cff |
143 | bool |
864dbfa3 |
144 | Perl_sv_derived_from(pTHX_ SV *sv, const char *name) |
55497cff |
145 | { |
97aff369 |
146 | dVAR; |
0b6f4f5c |
147 | HV *stash; |
46e4b22b |
148 | |
5b295bef |
149 | SvGETMAGIC(sv); |
55497cff |
150 | |
151 | if (SvROK(sv)) { |
0b6f4f5c |
152 | const char *type; |
55497cff |
153 | sv = SvRV(sv); |
154 | type = sv_reftype(sv,0); |
0b6f4f5c |
155 | if (type && strEQ(type,name)) |
156 | return TRUE; |
157 | stash = SvOBJECT(sv) ? SvSTASH(sv) : NULL; |
55497cff |
158 | } |
159 | else { |
da51bb9b |
160 | stash = gv_stashsv(sv, 0); |
55497cff |
161 | } |
46e4b22b |
162 | |
0b6f4f5c |
163 | if (stash) { |
da51bb9b |
164 | HV * const name_stash = gv_stashpv(name, 0); |
a9ec700e |
165 | return isa_lookup(stash, name, name_stash, strlen(name), 0); |
0b6f4f5c |
166 | } |
167 | else |
168 | return FALSE; |
301daebc |
169 | |
55497cff |
170 | } |
171 | |
cbc021f9 |
172 | /* |
173 | =for apidoc sv_does |
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 |
181 | #include "XSUB.h" |
182 | |
cbc021f9 |
183 | bool |
184 | Perl_sv_does(pTHX_ SV *sv, const char *name) |
185 | { |
186 | const char *classname; |
187 | bool does_it; |
188 | |
189 | dSP; |
190 | ENTER; |
191 | SAVETMPS; |
192 | |
193 | SvGETMAGIC(sv); |
194 | |
195 | if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) |
196 | || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) |
197 | return FALSE; |
198 | |
199 | if (sv_isobject(sv)) { |
200 | classname = sv_reftype(SvRV(sv),TRUE); |
201 | } else { |
202 | classname = SvPV(sv,PL_na); |
203 | } |
204 | |
205 | if (strEQ(name,classname)) |
206 | return TRUE; |
207 | |
208 | PUSHMARK(SP); |
209 | XPUSHs(sv); |
210 | XPUSHs(sv_2mortal(newSVpv(name, 0))); |
211 | PUTBACK; |
212 | |
213 | call_method("isa", G_SCALAR); |
214 | SPAGAIN; |
215 | |
216 | does_it = SvTRUE( TOPs ); |
217 | FREETMPS; |
218 | LEAVE; |
219 | |
220 | return does_it; |
221 | } |
222 | |
27da23d5 |
223 | PERL_XS_EXPORT_C void XS_UNIVERSAL_isa(pTHX_ CV *cv); |
224 | PERL_XS_EXPORT_C void XS_UNIVERSAL_can(pTHX_ CV *cv); |
cbc021f9 |
225 | PERL_XS_EXPORT_C void XS_UNIVERSAL_DOES(pTHX_ CV *cv); |
27da23d5 |
226 | PERL_XS_EXPORT_C void XS_UNIVERSAL_VERSION(pTHX_ CV *cv); |
439cb1c4 |
227 | XS(XS_version_new); |
228 | XS(XS_version_stringify); |
229 | XS(XS_version_numify); |
9137345a |
230 | XS(XS_version_normal); |
439cb1c4 |
231 | XS(XS_version_vcmp); |
232 | XS(XS_version_boolean); |
2dfd8427 |
233 | #ifdef HASATTRIBUTE_NORETURN |
234 | XS(XS_version_noop) __attribute__noreturn__; |
235 | #else |
439cb1c4 |
236 | XS(XS_version_noop); |
2dfd8427 |
237 | #endif |
c8d69e4a |
238 | XS(XS_version_is_alpha); |
137d6fc0 |
239 | XS(XS_version_qv); |
8800c35a |
240 | XS(XS_utf8_is_utf8); |
1b026014 |
241 | XS(XS_utf8_valid); |
242 | XS(XS_utf8_encode); |
243 | XS(XS_utf8_decode); |
244 | XS(XS_utf8_upgrade); |
245 | XS(XS_utf8_downgrade); |
246 | XS(XS_utf8_unicode_to_native); |
247 | XS(XS_utf8_native_to_unicode); |
29569577 |
248 | XS(XS_Internals_SvREADONLY); |
249 | XS(XS_Internals_SvREFCNT); |
f044d0d1 |
250 | XS(XS_Internals_hv_clear_placehold); |
39f7a870 |
251 | XS(XS_PerlIO_get_layers); |
39cff0d9 |
252 | XS(XS_Regexp_DESTROY); |
9a7034eb |
253 | XS(XS_Internals_hash_seed); |
008fb0c0 |
254 | XS(XS_Internals_rehash_seed); |
05619474 |
255 | XS(XS_Internals_HvREHASH); |
e1234d8e |
256 | XS(XS_Internals_inc_sub_generation); |
0cb96387 |
257 | |
258 | void |
259 | Perl_boot_core_UNIVERSAL(pTHX) |
260 | { |
97aff369 |
261 | dVAR; |
157e3fc8 |
262 | static const char file[] = __FILE__; |
0cb96387 |
263 | |
264 | newXS("UNIVERSAL::isa", XS_UNIVERSAL_isa, file); |
265 | newXS("UNIVERSAL::can", XS_UNIVERSAL_can, file); |
cbc021f9 |
266 | newXS("UNIVERSAL::DOES", XS_UNIVERSAL_DOES, file); |
0cb96387 |
267 | newXS("UNIVERSAL::VERSION", XS_UNIVERSAL_VERSION, file); |
439cb1c4 |
268 | { |
ad63d80f |
269 | /* register the overloading (type 'A') magic */ |
270 | PL_amagic_generation++; |
439cb1c4 |
271 | /* Make it findable via fetchmethod */ |
be2ebcad |
272 | newXS("version::()", XS_version_noop, file); |
439cb1c4 |
273 | newXS("version::new", XS_version_new, file); |
274 | newXS("version::(\"\"", XS_version_stringify, file); |
275 | newXS("version::stringify", XS_version_stringify, file); |
276 | newXS("version::(0+", XS_version_numify, file); |
277 | newXS("version::numify", XS_version_numify, file); |
9137345a |
278 | newXS("version::normal", XS_version_normal, file); |
439cb1c4 |
279 | newXS("version::(cmp", XS_version_vcmp, file); |
280 | newXS("version::(<=>", XS_version_vcmp, file); |
281 | newXS("version::vcmp", XS_version_vcmp, file); |
282 | newXS("version::(bool", XS_version_boolean, file); |
283 | newXS("version::boolean", XS_version_boolean, file); |
284 | newXS("version::(nomethod", XS_version_noop, file); |
285 | newXS("version::noop", XS_version_noop, file); |
c8d69e4a |
286 | newXS("version::is_alpha", XS_version_is_alpha, file); |
137d6fc0 |
287 | newXS("version::qv", XS_version_qv, file); |
439cb1c4 |
288 | } |
8800c35a |
289 | newXS("utf8::is_utf8", XS_utf8_is_utf8, file); |
1b026014 |
290 | newXS("utf8::valid", XS_utf8_valid, file); |
291 | newXS("utf8::encode", XS_utf8_encode, file); |
292 | newXS("utf8::decode", XS_utf8_decode, file); |
293 | newXS("utf8::upgrade", XS_utf8_upgrade, file); |
294 | newXS("utf8::downgrade", XS_utf8_downgrade, file); |
295 | newXS("utf8::native_to_unicode", XS_utf8_native_to_unicode, file); |
296 | newXS("utf8::unicode_to_native", XS_utf8_unicode_to_native, file); |
29569577 |
297 | newXSproto("Internals::SvREADONLY",XS_Internals_SvREADONLY, file, "\\[$%@];$"); |
298 | newXSproto("Internals::SvREFCNT",XS_Internals_SvREFCNT, file, "\\[$%@];$"); |
dfd4ef2f |
299 | newXSproto("Internals::hv_clear_placeholders", |
f044d0d1 |
300 | XS_Internals_hv_clear_placehold, file, "\\%"); |
9d569fce |
301 | newXSproto("PerlIO::get_layers", |
302 | XS_PerlIO_get_layers, file, "*;@"); |
39cff0d9 |
303 | newXS("Regexp::DESTROY", XS_Regexp_DESTROY, file); |
9a7034eb |
304 | newXSproto("Internals::hash_seed",XS_Internals_hash_seed, file, ""); |
008fb0c0 |
305 | newXSproto("Internals::rehash_seed",XS_Internals_rehash_seed, file, ""); |
05619474 |
306 | newXSproto("Internals::HvREHASH", XS_Internals_HvREHASH, file, "\\%"); |
e1234d8e |
307 | newXSproto("Internals::inc_sub_generation",XS_Internals_inc_sub_generation, |
308 | file, ""); |
0cb96387 |
309 | } |
310 | |
55497cff |
311 | |
6d4a7be2 |
312 | XS(XS_UNIVERSAL_isa) |
313 | { |
97aff369 |
314 | dVAR; |
6d4a7be2 |
315 | dXSARGS; |
58c0efa5 |
316 | PERL_UNUSED_ARG(cv); |
6d4a7be2 |
317 | |
318 | if (items != 2) |
cea2e8a9 |
319 | Perl_croak(aTHX_ "Usage: UNIVERSAL::isa(reference, kind)"); |
c4420975 |
320 | else { |
321 | SV * const sv = ST(0); |
322 | const char *name; |
6d4a7be2 |
323 | |
c4420975 |
324 | SvGETMAGIC(sv); |
d3f7f2b2 |
325 | |
c4420975 |
326 | if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) |
327 | || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) |
328 | XSRETURN_UNDEF; |
f8f70380 |
329 | |
c4420975 |
330 | name = SvPV_nolen_const(ST(1)); |
6d4a7be2 |
331 | |
c4420975 |
332 | ST(0) = boolSV(sv_derived_from(sv, name)); |
333 | XSRETURN(1); |
334 | } |
6d4a7be2 |
335 | } |
336 | |
6d4a7be2 |
337 | XS(XS_UNIVERSAL_can) |
338 | { |
97aff369 |
339 | dVAR; |
6d4a7be2 |
340 | dXSARGS; |
341 | SV *sv; |
6867be6d |
342 | const char *name; |
6d4a7be2 |
343 | SV *rv; |
6f08146e |
344 | HV *pkg = NULL; |
58c0efa5 |
345 | PERL_UNUSED_ARG(cv); |
6d4a7be2 |
346 | |
347 | if (items != 2) |
cea2e8a9 |
348 | Perl_croak(aTHX_ "Usage: UNIVERSAL::can(object-ref, method)"); |
6d4a7be2 |
349 | |
350 | sv = ST(0); |
f8f70380 |
351 | |
5b295bef |
352 | SvGETMAGIC(sv); |
d3f7f2b2 |
353 | |
253ecd6d |
354 | if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) |
355 | || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) |
f8f70380 |
356 | XSRETURN_UNDEF; |
357 | |
0510663f |
358 | name = SvPV_nolen_const(ST(1)); |
3280af22 |
359 | rv = &PL_sv_undef; |
6d4a7be2 |
360 | |
46e4b22b |
361 | if (SvROK(sv)) { |
6f08146e |
362 | sv = (SV*)SvRV(sv); |
46e4b22b |
363 | if (SvOBJECT(sv)) |
6f08146e |
364 | pkg = SvSTASH(sv); |
365 | } |
366 | else { |
da51bb9b |
367 | pkg = gv_stashsv(sv, 0); |
6f08146e |
368 | } |
369 | |
370 | if (pkg) { |
c4420975 |
371 | GV * const gv = gv_fetchmethod_autoload(pkg, name, FALSE); |
dc848c6f |
372 | if (gv && isGV(gv)) |
373 | rv = sv_2mortal(newRV((SV*)GvCV(gv))); |
6d4a7be2 |
374 | } |
375 | |
376 | ST(0) = rv; |
377 | XSRETURN(1); |
378 | } |
379 | |
cbc021f9 |
380 | XS(XS_UNIVERSAL_DOES) |
381 | { |
382 | dVAR; |
383 | dXSARGS; |
58c0efa5 |
384 | PERL_UNUSED_ARG(cv); |
cbc021f9 |
385 | |
386 | if (items != 2) |
387 | Perl_croak(aTHX_ "Usage: invocant->does(kind)"); |
388 | else { |
389 | SV * const sv = ST(0); |
390 | const char *name; |
391 | |
392 | name = SvPV_nolen_const(ST(1)); |
393 | if (sv_does( sv, name )) |
394 | XSRETURN_YES; |
395 | |
396 | XSRETURN_NO; |
397 | } |
398 | } |
399 | |
6d4a7be2 |
400 | XS(XS_UNIVERSAL_VERSION) |
401 | { |
97aff369 |
402 | dVAR; |
6d4a7be2 |
403 | dXSARGS; |
404 | HV *pkg; |
405 | GV **gvp; |
406 | GV *gv; |
407 | SV *sv; |
e1ec3a88 |
408 | const char *undef; |
58c0efa5 |
409 | PERL_UNUSED_ARG(cv); |
6d4a7be2 |
410 | |
1571675a |
411 | if (SvROK(ST(0))) { |
6d4a7be2 |
412 | sv = (SV*)SvRV(ST(0)); |
1571675a |
413 | if (!SvOBJECT(sv)) |
cea2e8a9 |
414 | Perl_croak(aTHX_ "Cannot find version of an unblessed reference"); |
6d4a7be2 |
415 | pkg = SvSTASH(sv); |
416 | } |
417 | else { |
da51bb9b |
418 | pkg = gv_stashsv(ST(0), 0); |
6d4a7be2 |
419 | } |
420 | |
4608196e |
421 | gvp = pkg ? (GV**)hv_fetchs(pkg, "VERSION", FALSE) : NULL; |
6d4a7be2 |
422 | |
0008872a |
423 | if (gvp && isGV(gv = *gvp) && (sv = GvSV(gv)) && SvOK(sv)) { |
c4420975 |
424 | SV * const nsv = sv_newmortal(); |
6d4a7be2 |
425 | sv_setsv(nsv, sv); |
426 | sv = nsv; |
137d6fc0 |
427 | if ( !sv_derived_from(sv, "version")) |
428 | upg_version(sv); |
c445ea15 |
429 | undef = NULL; |
6d4a7be2 |
430 | } |
431 | else { |
3280af22 |
432 | sv = (SV*)&PL_sv_undef; |
6d4a7be2 |
433 | undef = "(undef)"; |
434 | } |
435 | |
1571675a |
436 | if (items > 1) { |
1571675a |
437 | SV *req = ST(1); |
438 | |
62658f4d |
439 | if (undef) { |
bfcb3514 |
440 | if (pkg) { |
c4420975 |
441 | const char * const name = HvNAME_get(pkg); |
a3b680e6 |
442 | Perl_croak(aTHX_ |
bfcb3514 |
443 | "%s does not define $%s::VERSION--version check failed", |
444 | name, name); |
445 | } else { |
a3b680e6 |
446 | Perl_croak(aTHX_ |
447 | "%s defines neither package nor VERSION--version check failed", |
0510663f |
448 | SvPVx_nolen_const(ST(0)) ); |
62658f4d |
449 | } |
450 | } |
ad63d80f |
451 | |
137d6fc0 |
452 | if ( !sv_derived_from(req, "version")) { |
453 | /* req may very well be R/O, so create a new object */ |
c4420975 |
454 | SV * const nsv = sv_newmortal(); |
137d6fc0 |
455 | sv_setsv(nsv, req); |
456 | req = nsv; |
457 | upg_version(req); |
458 | } |
1571675a |
459 | |
137d6fc0 |
460 | if ( vcmp( req, sv ) > 0 ) |
b9381830 |
461 | Perl_croak(aTHX_ "%s version %"SVf" (%"SVf") required--" |
95b63a38 |
462 | "this is only version %"SVf" (%"SVf")", HvNAME_get(pkg), |
be2597df |
463 | SVfARG(vnumify(req)), |
464 | SVfARG(vnormal(req)), |
465 | SVfARG(vnumify(sv)), |
466 | SVfARG(vnormal(sv))); |
2d8e6c8d |
467 | } |
6d4a7be2 |
468 | |
2b140d5b |
469 | if ( SvOK(sv) && sv_derived_from(sv, "version") ) { |
b38a9dc5 |
470 | ST(0) = vnumify(sv); |
13f8f398 |
471 | } else { |
472 | ST(0) = sv; |
b38a9dc5 |
473 | } |
6d4a7be2 |
474 | |
475 | XSRETURN(1); |
476 | } |
477 | |
439cb1c4 |
478 | XS(XS_version_new) |
479 | { |
97aff369 |
480 | dVAR; |
439cb1c4 |
481 | dXSARGS; |
58c0efa5 |
482 | PERL_UNUSED_ARG(cv); |
129318bd |
483 | if (items > 3) |
439cb1c4 |
484 | Perl_croak(aTHX_ "Usage: version::new(class, version)"); |
485 | SP -= items; |
486 | { |
137d6fc0 |
487 | SV *vs = ST(1); |
488 | SV *rv; |
c4420975 |
489 | const char * const classname = |
490 | sv_isobject(ST(0)) /* get the class if called as an object method */ |
491 | ? HvNAME(SvSTASH(SvRV(ST(0)))) |
492 | : (char *)SvPV_nolen(ST(0)); |
9137345a |
493 | |
92dcf8ce |
494 | if ( items == 1 || vs == &PL_sv_undef ) { /* no param or explicit undef */ |
495 | /* create empty object */ |
496 | vs = sv_newmortal(); |
497 | sv_setpvn(vs,"",0); |
9137345a |
498 | } |
499 | else if ( items == 3 ) { |
500 | vs = sv_newmortal(); |
cfd0369c |
501 | Perl_sv_setpvf(aTHX_ vs,"v%s",SvPV_nolen_const(ST(2))); |
129318bd |
502 | } |
439cb1c4 |
503 | |
137d6fc0 |
504 | rv = new_version(vs); |
0723351e |
505 | if ( strcmp(classname,"version") != 0 ) /* inherited new() */ |
da51bb9b |
506 | sv_bless(rv, gv_stashpv(classname, GV_ADD)); |
137d6fc0 |
507 | |
508 | PUSHs(sv_2mortal(rv)); |
439cb1c4 |
509 | PUTBACK; |
510 | return; |
511 | } |
512 | } |
513 | |
514 | XS(XS_version_stringify) |
515 | { |
97aff369 |
516 | dVAR; |
41be1fbd |
517 | dXSARGS; |
58c0efa5 |
518 | PERL_UNUSED_ARG(cv); |
41be1fbd |
519 | if (items < 1) |
520 | Perl_croak(aTHX_ "Usage: version::stringify(lobj, ...)"); |
521 | SP -= items; |
522 | { |
7452cf6a |
523 | SV * lobj; |
41be1fbd |
524 | |
525 | if (sv_derived_from(ST(0), "version")) { |
9137345a |
526 | lobj = SvRV(ST(0)); |
41be1fbd |
527 | } |
528 | else |
529 | Perl_croak(aTHX_ "lobj is not of type version"); |
530 | |
137d6fc0 |
531 | PUSHs(sv_2mortal(vstringify(lobj))); |
41be1fbd |
532 | |
533 | PUTBACK; |
534 | return; |
535 | } |
439cb1c4 |
536 | } |
537 | |
538 | XS(XS_version_numify) |
539 | { |
97aff369 |
540 | dVAR; |
41be1fbd |
541 | dXSARGS; |
58c0efa5 |
542 | PERL_UNUSED_ARG(cv); |
41be1fbd |
543 | if (items < 1) |
544 | Perl_croak(aTHX_ "Usage: version::numify(lobj, ...)"); |
545 | SP -= items; |
546 | { |
7452cf6a |
547 | SV * lobj; |
41be1fbd |
548 | |
549 | if (sv_derived_from(ST(0), "version")) { |
9137345a |
550 | lobj = SvRV(ST(0)); |
41be1fbd |
551 | } |
552 | else |
553 | Perl_croak(aTHX_ "lobj is not of type version"); |
554 | |
137d6fc0 |
555 | PUSHs(sv_2mortal(vnumify(lobj))); |
41be1fbd |
556 | |
557 | PUTBACK; |
558 | return; |
559 | } |
439cb1c4 |
560 | } |
561 | |
9137345a |
562 | XS(XS_version_normal) |
563 | { |
97aff369 |
564 | dVAR; |
9137345a |
565 | dXSARGS; |
58c0efa5 |
566 | PERL_UNUSED_ARG(cv); |
9137345a |
567 | if (items < 1) |
568 | Perl_croak(aTHX_ "Usage: version::normal(lobj, ...)"); |
569 | SP -= items; |
570 | { |
7452cf6a |
571 | SV * lobj; |
9137345a |
572 | |
573 | if (sv_derived_from(ST(0), "version")) { |
574 | lobj = SvRV(ST(0)); |
575 | } |
576 | else |
577 | Perl_croak(aTHX_ "lobj is not of type version"); |
578 | |
579 | PUSHs(sv_2mortal(vnormal(lobj))); |
580 | |
581 | PUTBACK; |
582 | return; |
583 | } |
584 | } |
585 | |
439cb1c4 |
586 | XS(XS_version_vcmp) |
587 | { |
97aff369 |
588 | dVAR; |
41be1fbd |
589 | dXSARGS; |
58c0efa5 |
590 | PERL_UNUSED_ARG(cv); |
41be1fbd |
591 | if (items < 1) |
592 | Perl_croak(aTHX_ "Usage: version::vcmp(lobj, ...)"); |
593 | SP -= items; |
594 | { |
7452cf6a |
595 | SV * lobj; |
41be1fbd |
596 | |
597 | if (sv_derived_from(ST(0), "version")) { |
9137345a |
598 | lobj = SvRV(ST(0)); |
41be1fbd |
599 | } |
600 | else |
601 | Perl_croak(aTHX_ "lobj is not of type version"); |
602 | |
603 | { |
604 | SV *rs; |
605 | SV *rvs; |
606 | SV * robj = ST(1); |
7452cf6a |
607 | const IV swap = (IV)SvIV(ST(2)); |
41be1fbd |
608 | |
609 | if ( ! sv_derived_from(robj, "version") ) |
610 | { |
611 | robj = new_version(robj); |
612 | } |
613 | rvs = SvRV(robj); |
614 | |
615 | if ( swap ) |
616 | { |
617 | rs = newSViv(vcmp(rvs,lobj)); |
618 | } |
619 | else |
620 | { |
621 | rs = newSViv(vcmp(lobj,rvs)); |
622 | } |
623 | |
137d6fc0 |
624 | PUSHs(sv_2mortal(rs)); |
41be1fbd |
625 | } |
626 | |
627 | PUTBACK; |
628 | return; |
629 | } |
439cb1c4 |
630 | } |
631 | |
632 | XS(XS_version_boolean) |
633 | { |
97aff369 |
634 | dVAR; |
635 | dXSARGS; |
58c0efa5 |
636 | PERL_UNUSED_ARG(cv); |
97aff369 |
637 | if (items < 1) |
638 | Perl_croak(aTHX_ "Usage: version::boolean(lobj, ...)"); |
639 | SP -= items; |
c4420975 |
640 | if (sv_derived_from(ST(0), "version")) { |
641 | SV * const lobj = SvRV(ST(0)); |
396482e1 |
642 | SV * const rs = newSViv( vcmp(lobj,new_version(newSVpvs("0"))) ); |
c4420975 |
643 | PUSHs(sv_2mortal(rs)); |
644 | PUTBACK; |
645 | return; |
646 | } |
647 | else |
648 | Perl_croak(aTHX_ "lobj is not of type version"); |
439cb1c4 |
649 | } |
650 | |
651 | XS(XS_version_noop) |
652 | { |
97aff369 |
653 | dVAR; |
2dfd8427 |
654 | dXSARGS; |
58c0efa5 |
655 | PERL_UNUSED_ARG(cv); |
2dfd8427 |
656 | if (items < 1) |
657 | Perl_croak(aTHX_ "Usage: version::noop(lobj, ...)"); |
658 | if (sv_derived_from(ST(0), "version")) |
659 | Perl_croak(aTHX_ "operation not supported with version object"); |
660 | else |
661 | Perl_croak(aTHX_ "lobj is not of type version"); |
662 | #ifndef HASATTRIBUTE_NORETURN |
663 | XSRETURN_EMPTY; |
664 | #endif |
439cb1c4 |
665 | } |
666 | |
c8d69e4a |
667 | XS(XS_version_is_alpha) |
668 | { |
97aff369 |
669 | dVAR; |
c8d69e4a |
670 | dXSARGS; |
58c0efa5 |
671 | PERL_UNUSED_ARG(cv); |
c8d69e4a |
672 | if (items != 1) |
673 | Perl_croak(aTHX_ "Usage: version::is_alpha(lobj)"); |
674 | SP -= items; |
c4420975 |
675 | if (sv_derived_from(ST(0), "version")) { |
676 | SV * const lobj = ST(0); |
677 | if ( hv_exists((HV*)SvRV(lobj), "alpha", 5 ) ) |
678 | XSRETURN_YES; |
679 | else |
680 | XSRETURN_NO; |
c8d69e4a |
681 | PUTBACK; |
682 | return; |
683 | } |
c4420975 |
684 | else |
685 | Perl_croak(aTHX_ "lobj is not of type version"); |
c8d69e4a |
686 | } |
687 | |
137d6fc0 |
688 | XS(XS_version_qv) |
689 | { |
97aff369 |
690 | dVAR; |
137d6fc0 |
691 | dXSARGS; |
58c0efa5 |
692 | PERL_UNUSED_ARG(cv); |
137d6fc0 |
693 | if (items != 1) |
694 | Perl_croak(aTHX_ "Usage: version::qv(ver)"); |
695 | SP -= items; |
696 | { |
697 | SV * ver = ST(0); |
c4420975 |
698 | if ( !SvVOK(ver) ) { /* only need to do with if not already v-string */ |
699 | SV * const vs = sv_newmortal(); |
137d6fc0 |
700 | char *version; |
701 | if ( SvNOK(ver) ) /* may get too much accuracy */ |
702 | { |
703 | char tbuf[64]; |
b5b5a8f0 |
704 | #ifdef USE_LOCALE_NUMERIC |
705 | char *loc = setlocale(LC_NUMERIC, "C"); |
706 | #endif |
63e3af20 |
707 | STRLEN len = my_snprintf(tbuf, sizeof(tbuf), "%.9"NVgf, SvNVX(ver)); |
b5b5a8f0 |
708 | #ifdef USE_LOCALE_NUMERIC |
709 | setlocale(LC_NUMERIC, loc); |
710 | #endif |
63e3af20 |
711 | while (tbuf[len-1] == '0' && len > 0) len--; |
86c11942 |
712 | version = savepvn(tbuf, len); |
137d6fc0 |
713 | } |
714 | else |
715 | { |
2e0de35c |
716 | version = savesvpv(ver); |
137d6fc0 |
717 | } |
718 | (void)scan_version(version,vs,TRUE); |
719 | Safefree(version); |
720 | |
721 | PUSHs(vs); |
722 | } |
723 | else |
724 | { |
725 | PUSHs(sv_2mortal(new_version(ver))); |
726 | } |
727 | |
728 | PUTBACK; |
729 | return; |
730 | } |
731 | } |
732 | |
8800c35a |
733 | XS(XS_utf8_is_utf8) |
734 | { |
97aff369 |
735 | dVAR; |
41be1fbd |
736 | dXSARGS; |
58c0efa5 |
737 | PERL_UNUSED_ARG(cv); |
41be1fbd |
738 | if (items != 1) |
739 | Perl_croak(aTHX_ "Usage: utf8::is_utf8(sv)"); |
c4420975 |
740 | else { |
741 | const SV * const sv = ST(0); |
742 | if (SvUTF8(sv)) |
743 | XSRETURN_YES; |
744 | else |
745 | XSRETURN_NO; |
41be1fbd |
746 | } |
747 | XSRETURN_EMPTY; |
8800c35a |
748 | } |
749 | |
1b026014 |
750 | XS(XS_utf8_valid) |
751 | { |
97aff369 |
752 | dVAR; |
41be1fbd |
753 | dXSARGS; |
58c0efa5 |
754 | PERL_UNUSED_ARG(cv); |
41be1fbd |
755 | if (items != 1) |
756 | Perl_croak(aTHX_ "Usage: utf8::valid(sv)"); |
c4420975 |
757 | else { |
758 | SV * const sv = ST(0); |
759 | STRLEN len; |
760 | const char * const s = SvPV_const(sv,len); |
761 | if (!SvUTF8(sv) || is_utf8_string((const U8*)s,len)) |
762 | XSRETURN_YES; |
763 | else |
764 | XSRETURN_NO; |
765 | } |
41be1fbd |
766 | XSRETURN_EMPTY; |
1b026014 |
767 | } |
768 | |
769 | XS(XS_utf8_encode) |
770 | { |
97aff369 |
771 | dVAR; |
1b026014 |
772 | dXSARGS; |
58c0efa5 |
773 | PERL_UNUSED_ARG(cv); |
1b026014 |
774 | if (items != 1) |
775 | Perl_croak(aTHX_ "Usage: utf8::encode(sv)"); |
c4420975 |
776 | sv_utf8_encode(ST(0)); |
1b026014 |
777 | XSRETURN_EMPTY; |
778 | } |
779 | |
780 | XS(XS_utf8_decode) |
781 | { |
97aff369 |
782 | dVAR; |
1b026014 |
783 | dXSARGS; |
58c0efa5 |
784 | PERL_UNUSED_ARG(cv); |
1b026014 |
785 | if (items != 1) |
786 | Perl_croak(aTHX_ "Usage: utf8::decode(sv)"); |
c4420975 |
787 | else { |
788 | SV * const sv = ST(0); |
6867be6d |
789 | const bool RETVAL = sv_utf8_decode(sv); |
1b026014 |
790 | ST(0) = boolSV(RETVAL); |
791 | sv_2mortal(ST(0)); |
792 | } |
793 | XSRETURN(1); |
794 | } |
795 | |
796 | XS(XS_utf8_upgrade) |
797 | { |
97aff369 |
798 | dVAR; |
1b026014 |
799 | dXSARGS; |
58c0efa5 |
800 | PERL_UNUSED_ARG(cv); |
1b026014 |
801 | if (items != 1) |
802 | Perl_croak(aTHX_ "Usage: utf8::upgrade(sv)"); |
c4420975 |
803 | else { |
804 | SV * const sv = ST(0); |
1b026014 |
805 | STRLEN RETVAL; |
806 | dXSTARG; |
807 | |
808 | RETVAL = sv_utf8_upgrade(sv); |
809 | XSprePUSH; PUSHi((IV)RETVAL); |
810 | } |
811 | XSRETURN(1); |
812 | } |
813 | |
814 | XS(XS_utf8_downgrade) |
815 | { |
97aff369 |
816 | dVAR; |
1b026014 |
817 | dXSARGS; |
58c0efa5 |
818 | PERL_UNUSED_ARG(cv); |
1b026014 |
819 | if (items < 1 || items > 2) |
820 | Perl_croak(aTHX_ "Usage: utf8::downgrade(sv, failok=0)"); |
c4420975 |
821 | else { |
822 | SV * const sv = ST(0); |
6867be6d |
823 | const bool failok = (items < 2) ? 0 : (int)SvIV(ST(1)); |
824 | const bool RETVAL = sv_utf8_downgrade(sv, failok); |
1b026014 |
825 | |
1b026014 |
826 | ST(0) = boolSV(RETVAL); |
827 | sv_2mortal(ST(0)); |
828 | } |
829 | XSRETURN(1); |
830 | } |
831 | |
832 | XS(XS_utf8_native_to_unicode) |
833 | { |
97aff369 |
834 | dVAR; |
1b026014 |
835 | dXSARGS; |
6867be6d |
836 | const UV uv = SvUV(ST(0)); |
58c0efa5 |
837 | PERL_UNUSED_ARG(cv); |
b7953727 |
838 | |
839 | if (items > 1) |
840 | Perl_croak(aTHX_ "Usage: utf8::native_to_unicode(sv)"); |
841 | |
1b026014 |
842 | ST(0) = sv_2mortal(newSViv(NATIVE_TO_UNI(uv))); |
843 | XSRETURN(1); |
844 | } |
845 | |
846 | XS(XS_utf8_unicode_to_native) |
847 | { |
97aff369 |
848 | dVAR; |
1b026014 |
849 | dXSARGS; |
6867be6d |
850 | const UV uv = SvUV(ST(0)); |
58c0efa5 |
851 | PERL_UNUSED_ARG(cv); |
b7953727 |
852 | |
853 | if (items > 1) |
854 | Perl_croak(aTHX_ "Usage: utf8::unicode_to_native(sv)"); |
855 | |
1b026014 |
856 | ST(0) = sv_2mortal(newSViv(UNI_TO_NATIVE(uv))); |
857 | XSRETURN(1); |
858 | } |
859 | |
14a976d6 |
860 | XS(XS_Internals_SvREADONLY) /* This is dangerous stuff. */ |
29569577 |
861 | { |
97aff369 |
862 | dVAR; |
29569577 |
863 | dXSARGS; |
c4420975 |
864 | SV * const sv = SvRV(ST(0)); |
58c0efa5 |
865 | PERL_UNUSED_ARG(cv); |
6867be6d |
866 | |
29569577 |
867 | if (items == 1) { |
868 | if (SvREADONLY(sv)) |
869 | XSRETURN_YES; |
870 | else |
871 | XSRETURN_NO; |
872 | } |
873 | else if (items == 2) { |
874 | if (SvTRUE(ST(1))) { |
875 | SvREADONLY_on(sv); |
876 | XSRETURN_YES; |
877 | } |
878 | else { |
14a976d6 |
879 | /* I hope you really know what you are doing. */ |
29569577 |
880 | SvREADONLY_off(sv); |
881 | XSRETURN_NO; |
882 | } |
883 | } |
14a976d6 |
884 | XSRETURN_UNDEF; /* Can't happen. */ |
29569577 |
885 | } |
886 | |
14a976d6 |
887 | XS(XS_Internals_SvREFCNT) /* This is dangerous stuff. */ |
29569577 |
888 | { |
97aff369 |
889 | dVAR; |
29569577 |
890 | dXSARGS; |
c4420975 |
891 | SV * const sv = SvRV(ST(0)); |
58c0efa5 |
892 | PERL_UNUSED_ARG(cv); |
6867be6d |
893 | |
29569577 |
894 | if (items == 1) |
14a976d6 |
895 | XSRETURN_IV(SvREFCNT(sv) - 1); /* Minus the ref created for us. */ |
29569577 |
896 | else if (items == 2) { |
14a976d6 |
897 | /* I hope you really know what you are doing. */ |
29569577 |
898 | SvREFCNT(sv) = SvIV(ST(1)); |
899 | XSRETURN_IV(SvREFCNT(sv)); |
900 | } |
14a976d6 |
901 | XSRETURN_UNDEF; /* Can't happen. */ |
29569577 |
902 | } |
903 | |
f044d0d1 |
904 | XS(XS_Internals_hv_clear_placehold) |
dfd4ef2f |
905 | { |
97aff369 |
906 | dVAR; |
dfd4ef2f |
907 | dXSARGS; |
58c0efa5 |
908 | PERL_UNUSED_ARG(cv); |
6867be6d |
909 | |
3540d4ce |
910 | if (items != 1) |
911 | Perl_croak(aTHX_ "Usage: UNIVERSAL::hv_clear_placeholders(hv)"); |
c4420975 |
912 | else { |
913 | HV * const hv = (HV *) SvRV(ST(0)); |
914 | hv_clear_placeholders(hv); |
915 | XSRETURN(0); |
916 | } |
dfd4ef2f |
917 | } |
39f7a870 |
918 | |
39cff0d9 |
919 | XS(XS_Regexp_DESTROY) |
920 | { |
96a5add6 |
921 | PERL_UNUSED_CONTEXT; |
53c1dcc0 |
922 | PERL_UNUSED_ARG(cv); |
39cff0d9 |
923 | } |
924 | |
39f7a870 |
925 | XS(XS_PerlIO_get_layers) |
926 | { |
97aff369 |
927 | dVAR; |
39f7a870 |
928 | dXSARGS; |
58c0efa5 |
929 | PERL_UNUSED_ARG(cv); |
39f7a870 |
930 | if (items < 1 || items % 2 == 0) |
931 | Perl_croak(aTHX_ "Usage: PerlIO_get_layers(filehandle[,args])"); |
5fef3b4a |
932 | #ifdef USE_PERLIO |
39f7a870 |
933 | { |
934 | SV * sv; |
935 | GV * gv; |
936 | IO * io; |
937 | bool input = TRUE; |
938 | bool details = FALSE; |
939 | |
940 | if (items > 1) { |
c4420975 |
941 | SV * const *svp; |
39f7a870 |
942 | for (svp = MARK + 2; svp <= SP; svp += 2) { |
c4420975 |
943 | SV * const * const varp = svp; |
944 | SV * const * const valp = svp + 1; |
39f7a870 |
945 | STRLEN klen; |
c4420975 |
946 | const char * const key = SvPV_const(*varp, klen); |
39f7a870 |
947 | |
948 | switch (*key) { |
949 | case 'i': |
950 | if (klen == 5 && memEQ(key, "input", 5)) { |
951 | input = SvTRUE(*valp); |
952 | break; |
953 | } |
954 | goto fail; |
955 | case 'o': |
956 | if (klen == 6 && memEQ(key, "output", 6)) { |
957 | input = !SvTRUE(*valp); |
958 | break; |
959 | } |
960 | goto fail; |
961 | case 'd': |
962 | if (klen == 7 && memEQ(key, "details", 7)) { |
963 | details = SvTRUE(*valp); |
964 | break; |
965 | } |
966 | goto fail; |
967 | default: |
968 | fail: |
969 | Perl_croak(aTHX_ |
970 | "get_layers: unknown argument '%s'", |
971 | key); |
972 | } |
973 | } |
974 | |
975 | SP -= (items - 1); |
976 | } |
977 | |
978 | sv = POPs; |
979 | gv = (GV*)sv; |
980 | |
981 | if (!isGV(sv)) { |
982 | if (SvROK(sv) && isGV(SvRV(sv))) |
983 | gv = (GV*)SvRV(sv); |
671d49be |
984 | else if (SvPOKp(sv)) |
f776e3cd |
985 | gv = gv_fetchsv(sv, 0, SVt_PVIO); |
39f7a870 |
986 | } |
987 | |
988 | if (gv && (io = GvIO(gv))) { |
989 | dTARGET; |
c4420975 |
990 | AV* const av = PerlIO_get_layers(aTHX_ input ? |
39f7a870 |
991 | IoIFP(io) : IoOFP(io)); |
992 | I32 i; |
c4420975 |
993 | const I32 last = av_len(av); |
39f7a870 |
994 | I32 nitem = 0; |
995 | |
996 | for (i = last; i >= 0; i -= 3) { |
c4420975 |
997 | SV * const * const namsvp = av_fetch(av, i - 2, FALSE); |
998 | SV * const * const argsvp = av_fetch(av, i - 1, FALSE); |
999 | SV * const * const flgsvp = av_fetch(av, i, FALSE); |
39f7a870 |
1000 | |
c4420975 |
1001 | const bool namok = namsvp && *namsvp && SvPOK(*namsvp); |
1002 | const bool argok = argsvp && *argsvp && SvPOK(*argsvp); |
1003 | const bool flgok = flgsvp && *flgsvp && SvIOK(*flgsvp); |
39f7a870 |
1004 | |
1005 | if (details) { |
ec3bab8e |
1006 | XPUSHs(namok |
1007 | ? newSVpvn(SvPVX_const(*namsvp), SvCUR(*namsvp)) |
1008 | : &PL_sv_undef); |
1009 | XPUSHs(argok |
1010 | ? newSVpvn(SvPVX_const(*argsvp), SvCUR(*argsvp)) |
1011 | : &PL_sv_undef); |
39f7a870 |
1012 | if (flgok) |
1013 | XPUSHi(SvIVX(*flgsvp)); |
1014 | else |
1015 | XPUSHs(&PL_sv_undef); |
1016 | nitem += 3; |
1017 | } |
1018 | else { |
1019 | if (namok && argok) |
1020 | XPUSHs(Perl_newSVpvf(aTHX_ "%"SVf"(%"SVf")", |
be2597df |
1021 | SVfARG(*namsvp), |
1022 | SVfARG(*argsvp))); |
39f7a870 |
1023 | else if (namok) |
95b63a38 |
1024 | XPUSHs(Perl_newSVpvf(aTHX_ "%"SVf, |
be2597df |
1025 | SVfARG(*namsvp))); |
39f7a870 |
1026 | else |
1027 | XPUSHs(&PL_sv_undef); |
1028 | nitem++; |
1029 | if (flgok) { |
c4420975 |
1030 | const IV flags = SvIVX(*flgsvp); |
39f7a870 |
1031 | |
1032 | if (flags & PERLIO_F_UTF8) { |
396482e1 |
1033 | XPUSHs(newSVpvs("utf8")); |
39f7a870 |
1034 | nitem++; |
1035 | } |
1036 | } |
1037 | } |
1038 | } |
1039 | |
1040 | SvREFCNT_dec(av); |
1041 | |
1042 | XSRETURN(nitem); |
1043 | } |
1044 | } |
5fef3b4a |
1045 | #endif |
39f7a870 |
1046 | |
1047 | XSRETURN(0); |
1048 | } |
1049 | |
9a7034eb |
1050 | XS(XS_Internals_hash_seed) |
c910b28a |
1051 | { |
97aff369 |
1052 | dVAR; |
c85d3f85 |
1053 | /* Using dXSARGS would also have dITEM and dSP, |
1054 | * which define 2 unused local variables. */ |
557b887a |
1055 | dAXMARK; |
53c1dcc0 |
1056 | PERL_UNUSED_ARG(cv); |
ad73156c |
1057 | PERL_UNUSED_VAR(mark); |
81eaca17 |
1058 | XSRETURN_UV(PERL_HASH_SEED); |
c910b28a |
1059 | } |
1060 | |
008fb0c0 |
1061 | XS(XS_Internals_rehash_seed) |
8e90d776 |
1062 | { |
97aff369 |
1063 | dVAR; |
8e90d776 |
1064 | /* Using dXSARGS would also have dITEM and dSP, |
1065 | * which define 2 unused local variables. */ |
557b887a |
1066 | dAXMARK; |
53c1dcc0 |
1067 | PERL_UNUSED_ARG(cv); |
ad73156c |
1068 | PERL_UNUSED_VAR(mark); |
008fb0c0 |
1069 | XSRETURN_UV(PL_rehash_seed); |
8e90d776 |
1070 | } |
1071 | |
05619474 |
1072 | XS(XS_Internals_HvREHASH) /* Subject to change */ |
1073 | { |
97aff369 |
1074 | dVAR; |
05619474 |
1075 | dXSARGS; |
58c0efa5 |
1076 | PERL_UNUSED_ARG(cv); |
05619474 |
1077 | if (SvROK(ST(0))) { |
c4420975 |
1078 | const HV * const hv = (HV *) SvRV(ST(0)); |
05619474 |
1079 | if (items == 1 && SvTYPE(hv) == SVt_PVHV) { |
1080 | if (HvREHASH(hv)) |
1081 | XSRETURN_YES; |
1082 | else |
1083 | XSRETURN_NO; |
1084 | } |
1085 | } |
1086 | Perl_croak(aTHX_ "Internals::HvREHASH $hashref"); |
1087 | } |
241d1a3b |
1088 | |
e1234d8e |
1089 | XS(XS_Internals_inc_sub_generation) |
1090 | { |
97aff369 |
1091 | dVAR; |
e1234d8e |
1092 | /* Using dXSARGS would also have dITEM and dSP, |
1093 | * which define 2 unused local variables. */ |
1094 | dAXMARK; |
1095 | PERL_UNUSED_ARG(cv); |
1096 | PERL_UNUSED_VAR(mark); |
1097 | ++PL_sub_generation; |
1098 | XSRETURN_EMPTY; |
1099 | } |
1100 | |
241d1a3b |
1101 | /* |
1102 | * Local variables: |
1103 | * c-indentation-style: bsd |
1104 | * c-basic-offset: 4 |
1105 | * indent-tabs-mode: t |
1106 | * End: |
1107 | * |
37442d52 |
1108 | * ex: set ts=8 sts=4 sw=4 noet: |
1109 | */ |