Commit | Line | Data |
d6376244 |
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 |
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 |
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 |
17 | */ |
18 | |
166f8a29 |
19 | /* This file contains the code that implements the functions in Perl's |
20 | * UNIVERSAL package, such as UNIVERSAL->can(). |
192b9cd1 |
21 | * |
22 | * It is also used to store XS functions that need to be present in |
23 | * miniperl for a lack of a better place to put them. It might be |
24 | * clever to move them to seperate XS files which would then be pulled |
25 | * in by some to-be-written build process. |
166f8a29 |
26 | */ |
27 | |
6d4a7be2 |
28 | #include "EXTERN.h" |
864dbfa3 |
29 | #define PERL_IN_UNIVERSAL_C |
6d4a7be2 |
30 | #include "perl.h" |
6d4a7be2 |
31 | |
39f7a870 |
32 | #ifdef USE_PERLIO |
33 | #include "perliol.h" /* For the PERLIO_F_XXX */ |
34 | #endif |
35 | |
aea32303 |
36 | static HV * |
37 | S_get_isa_hash(pTHX_ HV *const stash) |
00bf72ff |
38 | { |
39 | dVAR; |
40 | struct mro_meta *const meta = HvMROMETA(stash); |
41 | |
42 | PERL_ARGS_ASSERT_GET_ISA_HASH; |
43 | |
44 | if (!meta->isa) { |
45 | AV *const isa = mro_get_linear_isa(stash); |
46 | if (!meta->isa) { |
47 | HV *const isa_hash = newHV(); |
48 | /* Linearisation didn't build it for us, so do it here. */ |
49 | SV *const *svp = AvARRAY(isa); |
50 | SV *const *const svp_end = svp + AvFILLp(isa) + 1; |
51 | const HEK *const canon_name = HvNAME_HEK(stash); |
52 | |
53 | while (svp < svp_end) { |
54 | (void) hv_store_ent(isa_hash, *svp++, &PL_sv_undef, 0); |
55 | } |
56 | |
57 | (void) hv_common(isa_hash, NULL, HEK_KEY(canon_name), |
58 | HEK_LEN(canon_name), HEK_FLAGS(canon_name), |
59 | HV_FETCH_ISSTORE, &PL_sv_undef, |
60 | HEK_HASH(canon_name)); |
61 | (void) hv_store(isa_hash, "UNIVERSAL", 9, &PL_sv_undef, 0); |
62 | |
63 | SvREADONLY_on(isa_hash); |
64 | |
65 | meta->isa = isa_hash; |
66 | } |
67 | } |
68 | return meta->isa; |
69 | } |
70 | |
6d4a7be2 |
71 | /* |
72 | * Contributed by Graham Barr <Graham.Barr@tiuk.ti.com> |
73 | * The main guts of traverse_isa was actually copied from gv_fetchmeth |
74 | */ |
75 | |
a9ec700e |
76 | STATIC bool |
515a4f72 |
77 | S_isa_lookup(pTHX_ HV *stash, const char * const name) |
6d4a7be2 |
78 | { |
97aff369 |
79 | dVAR; |
a49ba3fc |
80 | const struct mro_meta *const meta = HvMROMETA(stash); |
aea32303 |
81 | HV *const isa = meta->isa ? meta->isa : S_get_isa_hash(aTHX_ stash); |
a49ba3fc |
82 | STRLEN len = strlen(name); |
83 | const HV *our_stash; |
6d4a7be2 |
84 | |
7918f24d |
85 | PERL_ARGS_ASSERT_ISA_LOOKUP; |
86 | |
a49ba3fc |
87 | if (hv_common(isa, NULL, name, len, 0 /* No "UTF-8" flag possible with only |
88 | a char * argument*/, |
89 | HV_FETCH_ISEXISTS, NULL, 0)) { |
90 | /* Direct name lookup worked. */ |
a9ec700e |
91 | return TRUE; |
a49ba3fc |
92 | } |
6d4a7be2 |
93 | |
a49ba3fc |
94 | /* A stash/class can go by many names (ie. User == main::User), so |
95 | we use the name in the stash itself, which is canonical. */ |
96 | our_stash = gv_stashpvn(name, len, 0); |
97 | |
98 | if (our_stash) { |
99 | HEK *const canon_name = HvNAME_HEK(our_stash); |
a1d407e8 |
100 | |
a49ba3fc |
101 | if (hv_common(isa, NULL, HEK_KEY(canon_name), HEK_LEN(canon_name), |
102 | HEK_FLAGS(canon_name), |
103 | HV_FETCH_ISEXISTS, NULL, HEK_HASH(canon_name))) { |
e1a479c5 |
104 | return TRUE; |
a49ba3fc |
105 | } |
6d4a7be2 |
106 | } |
107 | |
a9ec700e |
108 | return FALSE; |
6d4a7be2 |
109 | } |
110 | |
954c1994 |
111 | /* |
ccfc67b7 |
112 | =head1 SV Manipulation Functions |
113 | |
954c1994 |
114 | =for apidoc sv_derived_from |
115 | |
6885da0e |
116 | Returns a boolean indicating whether the SV is derived from the specified class |
117 | I<at the C level>. To check derivation at the Perl level, call C<isa()> as a |
118 | normal Perl method. |
954c1994 |
119 | |
120 | =cut |
121 | */ |
122 | |
55497cff |
123 | bool |
15f169a1 |
124 | Perl_sv_derived_from(pTHX_ SV *sv, const char *const name) |
55497cff |
125 | { |
97aff369 |
126 | dVAR; |
0b6f4f5c |
127 | HV *stash; |
46e4b22b |
128 | |
7918f24d |
129 | PERL_ARGS_ASSERT_SV_DERIVED_FROM; |
130 | |
5b295bef |
131 | SvGETMAGIC(sv); |
55497cff |
132 | |
133 | if (SvROK(sv)) { |
0b6f4f5c |
134 | const char *type; |
55497cff |
135 | sv = SvRV(sv); |
136 | type = sv_reftype(sv,0); |
0b6f4f5c |
137 | if (type && strEQ(type,name)) |
138 | return TRUE; |
139 | stash = SvOBJECT(sv) ? SvSTASH(sv) : NULL; |
55497cff |
140 | } |
141 | else { |
da51bb9b |
142 | stash = gv_stashsv(sv, 0); |
55497cff |
143 | } |
46e4b22b |
144 | |
4a9e32d8 |
145 | return stash ? isa_lookup(stash, name) : FALSE; |
55497cff |
146 | } |
147 | |
cbc021f9 |
148 | /* |
149 | =for apidoc sv_does |
150 | |
151 | Returns a boolean indicating whether the SV performs a specific, named role. |
152 | The SV can be a Perl object or the name of a Perl class. |
153 | |
154 | =cut |
155 | */ |
156 | |
1b026014 |
157 | #include "XSUB.h" |
158 | |
cbc021f9 |
159 | bool |
15f169a1 |
160 | Perl_sv_does(pTHX_ SV *sv, const char *const name) |
cbc021f9 |
161 | { |
162 | const char *classname; |
163 | bool does_it; |
59e7186f |
164 | SV *methodname; |
cbc021f9 |
165 | dSP; |
7918f24d |
166 | |
167 | PERL_ARGS_ASSERT_SV_DOES; |
168 | |
cbc021f9 |
169 | ENTER; |
170 | SAVETMPS; |
171 | |
172 | SvGETMAGIC(sv); |
173 | |
174 | if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) |
175 | || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) |
176 | return FALSE; |
177 | |
178 | if (sv_isobject(sv)) { |
179 | classname = sv_reftype(SvRV(sv),TRUE); |
180 | } else { |
94707740 |
181 | classname = SvPV_nolen(sv); |
cbc021f9 |
182 | } |
183 | |
184 | if (strEQ(name,classname)) |
185 | return TRUE; |
186 | |
187 | PUSHMARK(SP); |
188 | XPUSHs(sv); |
6e449a3a |
189 | mXPUSHs(newSVpv(name, 0)); |
cbc021f9 |
190 | PUTBACK; |
191 | |
84bafc02 |
192 | methodname = newSVpvs_flags("isa", SVs_TEMP); |
59e7186f |
193 | /* ugly hack: use the SvSCREAM flag so S_method_common |
194 | * can figure out we're calling DOES() and not isa(), |
195 | * and report eventual errors correctly. --rgs */ |
196 | SvSCREAM_on(methodname); |
197 | call_sv(methodname, G_SCALAR | G_METHOD); |
cbc021f9 |
198 | SPAGAIN; |
199 | |
200 | does_it = SvTRUE( TOPs ); |
201 | FREETMPS; |
202 | LEAVE; |
203 | |
204 | return does_it; |
205 | } |
206 | |
27da23d5 |
207 | PERL_XS_EXPORT_C void XS_UNIVERSAL_isa(pTHX_ CV *cv); |
208 | PERL_XS_EXPORT_C void XS_UNIVERSAL_can(pTHX_ CV *cv); |
cbc021f9 |
209 | PERL_XS_EXPORT_C void XS_UNIVERSAL_DOES(pTHX_ CV *cv); |
27da23d5 |
210 | PERL_XS_EXPORT_C void XS_UNIVERSAL_VERSION(pTHX_ CV *cv); |
439cb1c4 |
211 | XS(XS_version_new); |
212 | XS(XS_version_stringify); |
213 | XS(XS_version_numify); |
9137345a |
214 | XS(XS_version_normal); |
439cb1c4 |
215 | XS(XS_version_vcmp); |
216 | XS(XS_version_boolean); |
2dfd8427 |
217 | #ifdef HASATTRIBUTE_NORETURN |
218 | XS(XS_version_noop) __attribute__noreturn__; |
219 | #else |
439cb1c4 |
220 | XS(XS_version_noop); |
2dfd8427 |
221 | #endif |
c8d69e4a |
222 | XS(XS_version_is_alpha); |
137d6fc0 |
223 | XS(XS_version_qv); |
8800c35a |
224 | XS(XS_utf8_is_utf8); |
1b026014 |
225 | XS(XS_utf8_valid); |
226 | XS(XS_utf8_encode); |
227 | XS(XS_utf8_decode); |
228 | XS(XS_utf8_upgrade); |
229 | XS(XS_utf8_downgrade); |
230 | XS(XS_utf8_unicode_to_native); |
231 | XS(XS_utf8_native_to_unicode); |
29569577 |
232 | XS(XS_Internals_SvREADONLY); |
233 | XS(XS_Internals_SvREFCNT); |
f044d0d1 |
234 | XS(XS_Internals_hv_clear_placehold); |
39f7a870 |
235 | XS(XS_PerlIO_get_layers); |
f63535fc |
236 | XS(XS_Regexp_DESTROY); |
9a7034eb |
237 | XS(XS_Internals_hash_seed); |
008fb0c0 |
238 | XS(XS_Internals_rehash_seed); |
05619474 |
239 | XS(XS_Internals_HvREHASH); |
e1234d8e |
240 | XS(XS_Internals_inc_sub_generation); |
80305961 |
241 | XS(XS_re_is_regexp); |
192b9cd1 |
242 | XS(XS_re_regname); |
243 | XS(XS_re_regnames); |
80305961 |
244 | XS(XS_re_regnames_count); |
192c1e27 |
245 | XS(XS_re_regexp_pattern); |
192b9cd1 |
246 | XS(XS_Tie_Hash_NamedCapture_FETCH); |
247 | XS(XS_Tie_Hash_NamedCapture_STORE); |
248 | XS(XS_Tie_Hash_NamedCapture_DELETE); |
249 | XS(XS_Tie_Hash_NamedCapture_CLEAR); |
250 | XS(XS_Tie_Hash_NamedCapture_EXISTS); |
86aa3d53 |
251 | XS(XS_Tie_Hash_NamedCapture_FIRSTK); |
252 | XS(XS_Tie_Hash_NamedCapture_NEXTK); |
192b9cd1 |
253 | XS(XS_Tie_Hash_NamedCapture_SCALAR); |
254 | XS(XS_Tie_Hash_NamedCapture_flags); |
0cb96387 |
255 | |
256 | void |
257 | Perl_boot_core_UNIVERSAL(pTHX) |
258 | { |
97aff369 |
259 | dVAR; |
157e3fc8 |
260 | static const char file[] = __FILE__; |
0cb96387 |
261 | |
262 | newXS("UNIVERSAL::isa", XS_UNIVERSAL_isa, file); |
263 | newXS("UNIVERSAL::can", XS_UNIVERSAL_can, file); |
cbc021f9 |
264 | newXS("UNIVERSAL::DOES", XS_UNIVERSAL_DOES, file); |
0cb96387 |
265 | newXS("UNIVERSAL::VERSION", XS_UNIVERSAL_VERSION, file); |
439cb1c4 |
266 | { |
ad63d80f |
267 | /* register the overloading (type 'A') magic */ |
268 | PL_amagic_generation++; |
439cb1c4 |
269 | /* Make it findable via fetchmethod */ |
be2ebcad |
270 | newXS("version::()", XS_version_noop, file); |
439cb1c4 |
271 | newXS("version::new", XS_version_new, file); |
272 | newXS("version::(\"\"", XS_version_stringify, file); |
273 | newXS("version::stringify", XS_version_stringify, file); |
274 | newXS("version::(0+", XS_version_numify, file); |
275 | newXS("version::numify", XS_version_numify, file); |
9137345a |
276 | newXS("version::normal", XS_version_normal, file); |
439cb1c4 |
277 | newXS("version::(cmp", XS_version_vcmp, file); |
278 | newXS("version::(<=>", XS_version_vcmp, file); |
279 | newXS("version::vcmp", XS_version_vcmp, file); |
280 | newXS("version::(bool", XS_version_boolean, file); |
281 | newXS("version::boolean", XS_version_boolean, file); |
282 | newXS("version::(nomethod", XS_version_noop, file); |
283 | newXS("version::noop", XS_version_noop, file); |
c8d69e4a |
284 | newXS("version::is_alpha", XS_version_is_alpha, file); |
137d6fc0 |
285 | newXS("version::qv", XS_version_qv, file); |
439cb1c4 |
286 | } |
8800c35a |
287 | newXS("utf8::is_utf8", XS_utf8_is_utf8, file); |
1b026014 |
288 | newXS("utf8::valid", XS_utf8_valid, file); |
289 | newXS("utf8::encode", XS_utf8_encode, file); |
290 | newXS("utf8::decode", XS_utf8_decode, file); |
291 | newXS("utf8::upgrade", XS_utf8_upgrade, file); |
292 | newXS("utf8::downgrade", XS_utf8_downgrade, file); |
293 | newXS("utf8::native_to_unicode", XS_utf8_native_to_unicode, file); |
294 | newXS("utf8::unicode_to_native", XS_utf8_unicode_to_native, file); |
29569577 |
295 | newXSproto("Internals::SvREADONLY",XS_Internals_SvREADONLY, file, "\\[$%@];$"); |
296 | newXSproto("Internals::SvREFCNT",XS_Internals_SvREFCNT, file, "\\[$%@];$"); |
dfd4ef2f |
297 | newXSproto("Internals::hv_clear_placeholders", |
f044d0d1 |
298 | XS_Internals_hv_clear_placehold, file, "\\%"); |
9d569fce |
299 | newXSproto("PerlIO::get_layers", |
300 | XS_PerlIO_get_layers, file, "*;@"); |
f63535fc |
301 | newXS("Regexp::DESTROY", XS_Regexp_DESTROY, file); |
9a7034eb |
302 | newXSproto("Internals::hash_seed",XS_Internals_hash_seed, file, ""); |
008fb0c0 |
303 | newXSproto("Internals::rehash_seed",XS_Internals_rehash_seed, file, ""); |
05619474 |
304 | newXSproto("Internals::HvREHASH", XS_Internals_HvREHASH, file, "\\%"); |
80305961 |
305 | newXSproto("re::is_regexp", XS_re_is_regexp, file, "$"); |
28d8d7f4 |
306 | newXSproto("re::regname", XS_re_regname, file, ";$$"); |
307 | newXSproto("re::regnames", XS_re_regnames, file, ";$"); |
28d8d7f4 |
308 | newXSproto("re::regnames_count", XS_re_regnames_count, file, ""); |
192c1e27 |
309 | newXSproto("re::regexp_pattern", XS_re_regexp_pattern, file, "$"); |
192b9cd1 |
310 | newXS("Tie::Hash::NamedCapture::FETCH", XS_Tie_Hash_NamedCapture_FETCH, file); |
311 | newXS("Tie::Hash::NamedCapture::STORE", XS_Tie_Hash_NamedCapture_STORE, file); |
312 | newXS("Tie::Hash::NamedCapture::DELETE", XS_Tie_Hash_NamedCapture_DELETE, file); |
313 | newXS("Tie::Hash::NamedCapture::CLEAR", XS_Tie_Hash_NamedCapture_CLEAR, file); |
314 | newXS("Tie::Hash::NamedCapture::EXISTS", XS_Tie_Hash_NamedCapture_EXISTS, file); |
86aa3d53 |
315 | newXS("Tie::Hash::NamedCapture::FIRSTKEY", XS_Tie_Hash_NamedCapture_FIRSTK, file); |
316 | newXS("Tie::Hash::NamedCapture::NEXTKEY", XS_Tie_Hash_NamedCapture_NEXTK, file); |
192b9cd1 |
317 | newXS("Tie::Hash::NamedCapture::SCALAR", XS_Tie_Hash_NamedCapture_SCALAR, file); |
318 | newXS("Tie::Hash::NamedCapture::flags", XS_Tie_Hash_NamedCapture_flags, file); |
0cb96387 |
319 | } |
320 | |
afa74d42 |
321 | /* |
322 | =for apidoc croak_xs_usage |
323 | |
324 | A specialised variant of C<croak()> for emitting the usage message for xsubs |
325 | |
326 | croak_xs_usage(cv, "eee_yow"); |
327 | |
328 | works out the package name and subroutine name from C<cv>, and then calls |
329 | C<croak()>. Hence if C<cv> is C<&ouch::awk>, it would call C<croak> as: |
330 | |
331 | Perl_croak(aTHX_ "Usage %s::%s(%s)", "ouch" "awk", "eee_yow"); |
332 | |
333 | =cut |
334 | */ |
335 | |
336 | void |
337 | Perl_croak_xs_usage(pTHX_ const CV *const cv, const char *const params) |
338 | { |
339 | const GV *const gv = CvGV(cv); |
340 | |
341 | PERL_ARGS_ASSERT_CROAK_XS_USAGE; |
342 | |
343 | if (gv) { |
344 | const char *const gvname = GvNAME(gv); |
345 | const HV *const stash = GvSTASH(gv); |
346 | const char *const hvname = stash ? HvNAME_get(stash) : NULL; |
347 | |
348 | if (hvname) |
349 | Perl_croak(aTHX_ "Usage: %s::%s(%s)", hvname, gvname, params); |
350 | else |
351 | Perl_croak(aTHX_ "Usage: %s(%s)", gvname, params); |
352 | } else { |
353 | /* Pants. I don't think that it should be possible to get here. */ |
93c51217 |
354 | Perl_croak(aTHX_ "Usage: CODE(0x%"UVxf")(%s)", PTR2UV(cv), params); |
afa74d42 |
355 | } |
356 | } |
55497cff |
357 | |
6d4a7be2 |
358 | XS(XS_UNIVERSAL_isa) |
359 | { |
97aff369 |
360 | dVAR; |
6d4a7be2 |
361 | dXSARGS; |
6d4a7be2 |
362 | |
363 | if (items != 2) |
afa74d42 |
364 | croak_xs_usage(cv, "reference, kind"); |
c4420975 |
365 | else { |
366 | SV * const sv = ST(0); |
367 | const char *name; |
6d4a7be2 |
368 | |
c4420975 |
369 | SvGETMAGIC(sv); |
d3f7f2b2 |
370 | |
c4420975 |
371 | if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) |
372 | || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) |
373 | XSRETURN_UNDEF; |
f8f70380 |
374 | |
c4420975 |
375 | name = SvPV_nolen_const(ST(1)); |
6d4a7be2 |
376 | |
c4420975 |
377 | ST(0) = boolSV(sv_derived_from(sv, name)); |
378 | XSRETURN(1); |
379 | } |
6d4a7be2 |
380 | } |
381 | |
6d4a7be2 |
382 | XS(XS_UNIVERSAL_can) |
383 | { |
97aff369 |
384 | dVAR; |
6d4a7be2 |
385 | dXSARGS; |
386 | SV *sv; |
6867be6d |
387 | const char *name; |
6d4a7be2 |
388 | SV *rv; |
6f08146e |
389 | HV *pkg = NULL; |
6d4a7be2 |
390 | |
391 | if (items != 2) |
afa74d42 |
392 | croak_xs_usage(cv, "object-ref, method"); |
6d4a7be2 |
393 | |
394 | sv = ST(0); |
f8f70380 |
395 | |
5b295bef |
396 | SvGETMAGIC(sv); |
d3f7f2b2 |
397 | |
253ecd6d |
398 | if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) |
399 | || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) |
f8f70380 |
400 | XSRETURN_UNDEF; |
401 | |
0510663f |
402 | name = SvPV_nolen_const(ST(1)); |
3280af22 |
403 | rv = &PL_sv_undef; |
6d4a7be2 |
404 | |
46e4b22b |
405 | if (SvROK(sv)) { |
daba3364 |
406 | sv = MUTABLE_SV(SvRV(sv)); |
46e4b22b |
407 | if (SvOBJECT(sv)) |
6f08146e |
408 | pkg = SvSTASH(sv); |
409 | } |
410 | else { |
da51bb9b |
411 | pkg = gv_stashsv(sv, 0); |
6f08146e |
412 | } |
413 | |
414 | if (pkg) { |
c4420975 |
415 | GV * const gv = gv_fetchmethod_autoload(pkg, name, FALSE); |
dc848c6f |
416 | if (gv && isGV(gv)) |
daba3364 |
417 | rv = sv_2mortal(newRV(MUTABLE_SV(GvCV(gv)))); |
6d4a7be2 |
418 | } |
419 | |
420 | ST(0) = rv; |
421 | XSRETURN(1); |
422 | } |
423 | |
cbc021f9 |
424 | XS(XS_UNIVERSAL_DOES) |
425 | { |
426 | dVAR; |
427 | dXSARGS; |
58c0efa5 |
428 | PERL_UNUSED_ARG(cv); |
cbc021f9 |
429 | |
430 | if (items != 2) |
26be3db7 |
431 | Perl_croak(aTHX_ "Usage: invocant->DOES(kind)"); |
cbc021f9 |
432 | else { |
433 | SV * const sv = ST(0); |
434 | const char *name; |
435 | |
436 | name = SvPV_nolen_const(ST(1)); |
437 | if (sv_does( sv, name )) |
438 | XSRETURN_YES; |
439 | |
440 | XSRETURN_NO; |
441 | } |
442 | } |
443 | |
6d4a7be2 |
444 | XS(XS_UNIVERSAL_VERSION) |
445 | { |
97aff369 |
446 | dVAR; |
6d4a7be2 |
447 | dXSARGS; |
448 | HV *pkg; |
449 | GV **gvp; |
450 | GV *gv; |
451 | SV *sv; |
e1ec3a88 |
452 | const char *undef; |
58c0efa5 |
453 | PERL_UNUSED_ARG(cv); |
6d4a7be2 |
454 | |
1571675a |
455 | if (SvROK(ST(0))) { |
daba3364 |
456 | sv = MUTABLE_SV(SvRV(ST(0))); |
1571675a |
457 | if (!SvOBJECT(sv)) |
cea2e8a9 |
458 | Perl_croak(aTHX_ "Cannot find version of an unblessed reference"); |
6d4a7be2 |
459 | pkg = SvSTASH(sv); |
460 | } |
461 | else { |
da51bb9b |
462 | pkg = gv_stashsv(ST(0), 0); |
6d4a7be2 |
463 | } |
464 | |
4608196e |
465 | gvp = pkg ? (GV**)hv_fetchs(pkg, "VERSION", FALSE) : NULL; |
6d4a7be2 |
466 | |
0008872a |
467 | if (gvp && isGV(gv = *gvp) && (sv = GvSV(gv)) && SvOK(sv)) { |
c4420975 |
468 | SV * const nsv = sv_newmortal(); |
6d4a7be2 |
469 | sv_setsv(nsv, sv); |
470 | sv = nsv; |
137d6fc0 |
471 | if ( !sv_derived_from(sv, "version")) |
ac0e6a2f |
472 | upg_version(sv, FALSE); |
c445ea15 |
473 | undef = NULL; |
6d4a7be2 |
474 | } |
475 | else { |
daba3364 |
476 | sv = &PL_sv_undef; |
6d4a7be2 |
477 | undef = "(undef)"; |
478 | } |
479 | |
1571675a |
480 | if (items > 1) { |
1571675a |
481 | SV *req = ST(1); |
482 | |
62658f4d |
483 | if (undef) { |
bfcb3514 |
484 | if (pkg) { |
c4420975 |
485 | const char * const name = HvNAME_get(pkg); |
a3b680e6 |
486 | Perl_croak(aTHX_ |
bfcb3514 |
487 | "%s does not define $%s::VERSION--version check failed", |
488 | name, name); |
489 | } else { |
a3b680e6 |
490 | Perl_croak(aTHX_ |
491 | "%s defines neither package nor VERSION--version check failed", |
0510663f |
492 | SvPVx_nolen_const(ST(0)) ); |
62658f4d |
493 | } |
494 | } |
ad63d80f |
495 | |
137d6fc0 |
496 | if ( !sv_derived_from(req, "version")) { |
497 | /* req may very well be R/O, so create a new object */ |
ac0e6a2f |
498 | req = sv_2mortal( new_version(req) ); |
137d6fc0 |
499 | } |
1571675a |
500 | |
ac0e6a2f |
501 | if ( vcmp( req, sv ) > 0 ) { |
ef8f7699 |
502 | if ( hv_exists(MUTABLE_HV(SvRV(req)), "qv", 2 ) ) { |
ac0e6a2f |
503 | Perl_croak(aTHX_ "%s version %"SVf" required--" |
504 | "this is only version %"SVf"", HvNAME_get(pkg), |
be2597df |
505 | SVfARG(vnormal(req)), |
be2597df |
506 | SVfARG(vnormal(sv))); |
ac0e6a2f |
507 | } else { |
508 | Perl_croak(aTHX_ "%s version %"SVf" required--" |
509 | "this is only version %"SVf"", HvNAME_get(pkg), |
8cb289bd |
510 | SVfARG(vstringify(req)), |
511 | SVfARG(vstringify(sv))); |
ac0e6a2f |
512 | } |
513 | } |
514 | |
2d8e6c8d |
515 | } |
6d4a7be2 |
516 | |
2b140d5b |
517 | if ( SvOK(sv) && sv_derived_from(sv, "version") ) { |
8cb289bd |
518 | ST(0) = vstringify(sv); |
13f8f398 |
519 | } else { |
520 | ST(0) = sv; |
b38a9dc5 |
521 | } |
6d4a7be2 |
522 | |
523 | XSRETURN(1); |
524 | } |
525 | |
439cb1c4 |
526 | XS(XS_version_new) |
527 | { |
97aff369 |
528 | dVAR; |
439cb1c4 |
529 | dXSARGS; |
129318bd |
530 | if (items > 3) |
afa74d42 |
531 | croak_xs_usage(cv, "class, version"); |
439cb1c4 |
532 | SP -= items; |
533 | { |
137d6fc0 |
534 | SV *vs = ST(1); |
535 | SV *rv; |
c4420975 |
536 | const char * const classname = |
537 | sv_isobject(ST(0)) /* get the class if called as an object method */ |
538 | ? HvNAME(SvSTASH(SvRV(ST(0)))) |
539 | : (char *)SvPV_nolen(ST(0)); |
9137345a |
540 | |
92dcf8ce |
541 | if ( items == 1 || vs == &PL_sv_undef ) { /* no param or explicit undef */ |
542 | /* create empty object */ |
543 | vs = sv_newmortal(); |
76f68e9b |
544 | sv_setpvs(vs,""); |
9137345a |
545 | } |
546 | else if ( items == 3 ) { |
547 | vs = sv_newmortal(); |
cfd0369c |
548 | Perl_sv_setpvf(aTHX_ vs,"v%s",SvPV_nolen_const(ST(2))); |
129318bd |
549 | } |
439cb1c4 |
550 | |
137d6fc0 |
551 | rv = new_version(vs); |
0723351e |
552 | if ( strcmp(classname,"version") != 0 ) /* inherited new() */ |
da51bb9b |
553 | sv_bless(rv, gv_stashpv(classname, GV_ADD)); |
137d6fc0 |
554 | |
6e449a3a |
555 | mPUSHs(rv); |
439cb1c4 |
556 | PUTBACK; |
557 | return; |
558 | } |
559 | } |
560 | |
561 | XS(XS_version_stringify) |
562 | { |
97aff369 |
563 | dVAR; |
41be1fbd |
564 | dXSARGS; |
565 | if (items < 1) |
afa74d42 |
566 | croak_xs_usage(cv, "lobj, ..."); |
41be1fbd |
567 | SP -= items; |
568 | { |
7452cf6a |
569 | SV * lobj; |
41be1fbd |
570 | |
571 | if (sv_derived_from(ST(0), "version")) { |
9137345a |
572 | lobj = SvRV(ST(0)); |
41be1fbd |
573 | } |
574 | else |
575 | Perl_croak(aTHX_ "lobj is not of type version"); |
576 | |
6e449a3a |
577 | mPUSHs(vstringify(lobj)); |
41be1fbd |
578 | |
579 | PUTBACK; |
580 | return; |
581 | } |
439cb1c4 |
582 | } |
583 | |
584 | XS(XS_version_numify) |
585 | { |
97aff369 |
586 | dVAR; |
41be1fbd |
587 | dXSARGS; |
588 | if (items < 1) |
afa74d42 |
589 | croak_xs_usage(cv, "lobj, ..."); |
41be1fbd |
590 | SP -= items; |
591 | { |
7452cf6a |
592 | SV * lobj; |
41be1fbd |
593 | |
594 | if (sv_derived_from(ST(0), "version")) { |
9137345a |
595 | lobj = SvRV(ST(0)); |
41be1fbd |
596 | } |
597 | else |
598 | Perl_croak(aTHX_ "lobj is not of type version"); |
599 | |
6e449a3a |
600 | mPUSHs(vnumify(lobj)); |
41be1fbd |
601 | |
602 | PUTBACK; |
603 | return; |
604 | } |
439cb1c4 |
605 | } |
606 | |
9137345a |
607 | XS(XS_version_normal) |
608 | { |
97aff369 |
609 | dVAR; |
9137345a |
610 | dXSARGS; |
611 | if (items < 1) |
afa74d42 |
612 | croak_xs_usage(cv, "lobj, ..."); |
9137345a |
613 | SP -= items; |
614 | { |
7452cf6a |
615 | SV * lobj; |
9137345a |
616 | |
617 | if (sv_derived_from(ST(0), "version")) { |
618 | lobj = SvRV(ST(0)); |
619 | } |
620 | else |
621 | Perl_croak(aTHX_ "lobj is not of type version"); |
622 | |
6e449a3a |
623 | mPUSHs(vnormal(lobj)); |
9137345a |
624 | |
625 | PUTBACK; |
626 | return; |
627 | } |
628 | } |
629 | |
439cb1c4 |
630 | XS(XS_version_vcmp) |
631 | { |
97aff369 |
632 | dVAR; |
41be1fbd |
633 | dXSARGS; |
634 | if (items < 1) |
afa74d42 |
635 | croak_xs_usage(cv, "lobj, ..."); |
41be1fbd |
636 | SP -= items; |
637 | { |
7452cf6a |
638 | SV * lobj; |
41be1fbd |
639 | |
640 | if (sv_derived_from(ST(0), "version")) { |
9137345a |
641 | lobj = SvRV(ST(0)); |
41be1fbd |
642 | } |
643 | else |
644 | Perl_croak(aTHX_ "lobj is not of type version"); |
645 | |
646 | { |
647 | SV *rs; |
648 | SV *rvs; |
649 | SV * robj = ST(1); |
7452cf6a |
650 | const IV swap = (IV)SvIV(ST(2)); |
41be1fbd |
651 | |
652 | if ( ! sv_derived_from(robj, "version") ) |
653 | { |
654 | robj = new_version(robj); |
655 | } |
656 | rvs = SvRV(robj); |
657 | |
658 | if ( swap ) |
659 | { |
660 | rs = newSViv(vcmp(rvs,lobj)); |
661 | } |
662 | else |
663 | { |
664 | rs = newSViv(vcmp(lobj,rvs)); |
665 | } |
666 | |
6e449a3a |
667 | mPUSHs(rs); |
41be1fbd |
668 | } |
669 | |
670 | PUTBACK; |
671 | return; |
672 | } |
439cb1c4 |
673 | } |
674 | |
675 | XS(XS_version_boolean) |
676 | { |
97aff369 |
677 | dVAR; |
678 | dXSARGS; |
679 | if (items < 1) |
afa74d42 |
680 | croak_xs_usage(cv, "lobj, ..."); |
97aff369 |
681 | SP -= items; |
c4420975 |
682 | if (sv_derived_from(ST(0), "version")) { |
683 | SV * const lobj = SvRV(ST(0)); |
396482e1 |
684 | SV * const rs = newSViv( vcmp(lobj,new_version(newSVpvs("0"))) ); |
6e449a3a |
685 | mPUSHs(rs); |
c4420975 |
686 | PUTBACK; |
687 | return; |
688 | } |
689 | else |
690 | Perl_croak(aTHX_ "lobj is not of type version"); |
439cb1c4 |
691 | } |
692 | |
693 | XS(XS_version_noop) |
694 | { |
97aff369 |
695 | dVAR; |
2dfd8427 |
696 | dXSARGS; |
697 | if (items < 1) |
afa74d42 |
698 | croak_xs_usage(cv, "lobj, ..."); |
2dfd8427 |
699 | if (sv_derived_from(ST(0), "version")) |
700 | Perl_croak(aTHX_ "operation not supported with version object"); |
701 | else |
702 | Perl_croak(aTHX_ "lobj is not of type version"); |
703 | #ifndef HASATTRIBUTE_NORETURN |
704 | XSRETURN_EMPTY; |
705 | #endif |
439cb1c4 |
706 | } |
707 | |
c8d69e4a |
708 | XS(XS_version_is_alpha) |
709 | { |
97aff369 |
710 | dVAR; |
c8d69e4a |
711 | dXSARGS; |
712 | if (items != 1) |
afa74d42 |
713 | croak_xs_usage(cv, "lobj"); |
c8d69e4a |
714 | SP -= items; |
c4420975 |
715 | if (sv_derived_from(ST(0), "version")) { |
716 | SV * const lobj = ST(0); |
ef8f7699 |
717 | if ( hv_exists(MUTABLE_HV(SvRV(lobj)), "alpha", 5 ) ) |
c4420975 |
718 | XSRETURN_YES; |
719 | else |
720 | XSRETURN_NO; |
c8d69e4a |
721 | PUTBACK; |
722 | return; |
723 | } |
c4420975 |
724 | else |
725 | Perl_croak(aTHX_ "lobj is not of type version"); |
c8d69e4a |
726 | } |
727 | |
137d6fc0 |
728 | XS(XS_version_qv) |
729 | { |
97aff369 |
730 | dVAR; |
137d6fc0 |
731 | dXSARGS; |
732 | if (items != 1) |
afa74d42 |
733 | croak_xs_usage(cv, "ver"); |
137d6fc0 |
734 | SP -= items; |
735 | { |
736 | SV * ver = ST(0); |
c4420975 |
737 | if ( !SvVOK(ver) ) { /* only need to do with if not already v-string */ |
ac0e6a2f |
738 | SV * const rv = sv_newmortal(); |
739 | sv_setsv(rv,ver); /* make a duplicate */ |
740 | upg_version(rv, TRUE); |
741 | PUSHs(rv); |
137d6fc0 |
742 | } |
743 | else |
744 | { |
6e449a3a |
745 | mPUSHs(new_version(ver)); |
137d6fc0 |
746 | } |
747 | |
748 | PUTBACK; |
749 | return; |
750 | } |
751 | } |
752 | |
8800c35a |
753 | XS(XS_utf8_is_utf8) |
754 | { |
97aff369 |
755 | dVAR; |
41be1fbd |
756 | dXSARGS; |
757 | if (items != 1) |
afa74d42 |
758 | croak_xs_usage(cv, "sv"); |
c4420975 |
759 | else { |
760 | const SV * const sv = ST(0); |
761 | if (SvUTF8(sv)) |
762 | XSRETURN_YES; |
763 | else |
764 | XSRETURN_NO; |
41be1fbd |
765 | } |
766 | XSRETURN_EMPTY; |
8800c35a |
767 | } |
768 | |
1b026014 |
769 | XS(XS_utf8_valid) |
770 | { |
97aff369 |
771 | dVAR; |
41be1fbd |
772 | dXSARGS; |
773 | if (items != 1) |
afa74d42 |
774 | croak_xs_usage(cv, "sv"); |
c4420975 |
775 | else { |
776 | SV * const sv = ST(0); |
777 | STRLEN len; |
778 | const char * const s = SvPV_const(sv,len); |
779 | if (!SvUTF8(sv) || is_utf8_string((const U8*)s,len)) |
780 | XSRETURN_YES; |
781 | else |
782 | XSRETURN_NO; |
783 | } |
41be1fbd |
784 | XSRETURN_EMPTY; |
1b026014 |
785 | } |
786 | |
787 | XS(XS_utf8_encode) |
788 | { |
97aff369 |
789 | dVAR; |
1b026014 |
790 | dXSARGS; |
791 | if (items != 1) |
afa74d42 |
792 | croak_xs_usage(cv, "sv"); |
c4420975 |
793 | sv_utf8_encode(ST(0)); |
1b026014 |
794 | XSRETURN_EMPTY; |
795 | } |
796 | |
797 | XS(XS_utf8_decode) |
798 | { |
97aff369 |
799 | dVAR; |
1b026014 |
800 | dXSARGS; |
801 | if (items != 1) |
afa74d42 |
802 | croak_xs_usage(cv, "sv"); |
c4420975 |
803 | else { |
804 | SV * const sv = ST(0); |
6867be6d |
805 | const bool RETVAL = sv_utf8_decode(sv); |
1b026014 |
806 | ST(0) = boolSV(RETVAL); |
807 | sv_2mortal(ST(0)); |
808 | } |
809 | XSRETURN(1); |
810 | } |
811 | |
812 | XS(XS_utf8_upgrade) |
813 | { |
97aff369 |
814 | dVAR; |
1b026014 |
815 | dXSARGS; |
816 | if (items != 1) |
afa74d42 |
817 | croak_xs_usage(cv, "sv"); |
c4420975 |
818 | else { |
819 | SV * const sv = ST(0); |
1b026014 |
820 | STRLEN RETVAL; |
821 | dXSTARG; |
822 | |
823 | RETVAL = sv_utf8_upgrade(sv); |
824 | XSprePUSH; PUSHi((IV)RETVAL); |
825 | } |
826 | XSRETURN(1); |
827 | } |
828 | |
829 | XS(XS_utf8_downgrade) |
830 | { |
97aff369 |
831 | dVAR; |
1b026014 |
832 | dXSARGS; |
833 | if (items < 1 || items > 2) |
afa74d42 |
834 | croak_xs_usage(cv, "sv, failok=0"); |
c4420975 |
835 | else { |
836 | SV * const sv = ST(0); |
6867be6d |
837 | const bool failok = (items < 2) ? 0 : (int)SvIV(ST(1)); |
838 | const bool RETVAL = sv_utf8_downgrade(sv, failok); |
1b026014 |
839 | |
1b026014 |
840 | ST(0) = boolSV(RETVAL); |
841 | sv_2mortal(ST(0)); |
842 | } |
843 | XSRETURN(1); |
844 | } |
845 | |
846 | XS(XS_utf8_native_to_unicode) |
847 | { |
97aff369 |
848 | dVAR; |
1b026014 |
849 | dXSARGS; |
6867be6d |
850 | const UV uv = SvUV(ST(0)); |
b7953727 |
851 | |
852 | if (items > 1) |
afa74d42 |
853 | croak_xs_usage(cv, "sv"); |
b7953727 |
854 | |
1b026014 |
855 | ST(0) = sv_2mortal(newSViv(NATIVE_TO_UNI(uv))); |
856 | XSRETURN(1); |
857 | } |
858 | |
859 | XS(XS_utf8_unicode_to_native) |
860 | { |
97aff369 |
861 | dVAR; |
1b026014 |
862 | dXSARGS; |
6867be6d |
863 | const UV uv = SvUV(ST(0)); |
b7953727 |
864 | |
865 | if (items > 1) |
afa74d42 |
866 | croak_xs_usage(cv, "sv"); |
b7953727 |
867 | |
1b026014 |
868 | ST(0) = sv_2mortal(newSViv(UNI_TO_NATIVE(uv))); |
869 | XSRETURN(1); |
870 | } |
871 | |
14a976d6 |
872 | XS(XS_Internals_SvREADONLY) /* This is dangerous stuff. */ |
29569577 |
873 | { |
97aff369 |
874 | dVAR; |
29569577 |
875 | dXSARGS; |
c4420975 |
876 | SV * const sv = SvRV(ST(0)); |
58c0efa5 |
877 | PERL_UNUSED_ARG(cv); |
6867be6d |
878 | |
29569577 |
879 | if (items == 1) { |
880 | if (SvREADONLY(sv)) |
881 | XSRETURN_YES; |
882 | else |
883 | XSRETURN_NO; |
884 | } |
885 | else if (items == 2) { |
886 | if (SvTRUE(ST(1))) { |
887 | SvREADONLY_on(sv); |
888 | XSRETURN_YES; |
889 | } |
890 | else { |
14a976d6 |
891 | /* I hope you really know what you are doing. */ |
29569577 |
892 | SvREADONLY_off(sv); |
893 | XSRETURN_NO; |
894 | } |
895 | } |
14a976d6 |
896 | XSRETURN_UNDEF; /* Can't happen. */ |
29569577 |
897 | } |
898 | |
14a976d6 |
899 | XS(XS_Internals_SvREFCNT) /* This is dangerous stuff. */ |
29569577 |
900 | { |
97aff369 |
901 | dVAR; |
29569577 |
902 | dXSARGS; |
c4420975 |
903 | SV * const sv = SvRV(ST(0)); |
58c0efa5 |
904 | PERL_UNUSED_ARG(cv); |
6867be6d |
905 | |
29569577 |
906 | if (items == 1) |
14a976d6 |
907 | XSRETURN_IV(SvREFCNT(sv) - 1); /* Minus the ref created for us. */ |
29569577 |
908 | else if (items == 2) { |
14a976d6 |
909 | /* I hope you really know what you are doing. */ |
29569577 |
910 | SvREFCNT(sv) = SvIV(ST(1)); |
911 | XSRETURN_IV(SvREFCNT(sv)); |
912 | } |
14a976d6 |
913 | XSRETURN_UNDEF; /* Can't happen. */ |
29569577 |
914 | } |
915 | |
f044d0d1 |
916 | XS(XS_Internals_hv_clear_placehold) |
dfd4ef2f |
917 | { |
97aff369 |
918 | dVAR; |
dfd4ef2f |
919 | dXSARGS; |
6867be6d |
920 | |
3540d4ce |
921 | if (items != 1) |
afa74d42 |
922 | croak_xs_usage(cv, "hv"); |
c4420975 |
923 | else { |
ef8f7699 |
924 | HV * const hv = MUTABLE_HV(SvRV(ST(0))); |
c4420975 |
925 | hv_clear_placeholders(hv); |
926 | XSRETURN(0); |
927 | } |
dfd4ef2f |
928 | } |
39f7a870 |
929 | |
f63535fc |
930 | XS(XS_Regexp_DESTROY) |
931 | { |
932 | PERL_UNUSED_CONTEXT; |
933 | PERL_UNUSED_ARG(cv); |
934 | } |
935 | |
39f7a870 |
936 | XS(XS_PerlIO_get_layers) |
937 | { |
97aff369 |
938 | dVAR; |
39f7a870 |
939 | dXSARGS; |
940 | if (items < 1 || items % 2 == 0) |
afa74d42 |
941 | croak_xs_usage(cv, "filehandle[,args]"); |
5fef3b4a |
942 | #ifdef USE_PERLIO |
39f7a870 |
943 | { |
944 | SV * sv; |
945 | GV * gv; |
946 | IO * io; |
947 | bool input = TRUE; |
948 | bool details = FALSE; |
949 | |
950 | if (items > 1) { |
c4420975 |
951 | SV * const *svp; |
39f7a870 |
952 | for (svp = MARK + 2; svp <= SP; svp += 2) { |
c4420975 |
953 | SV * const * const varp = svp; |
954 | SV * const * const valp = svp + 1; |
39f7a870 |
955 | STRLEN klen; |
c4420975 |
956 | const char * const key = SvPV_const(*varp, klen); |
39f7a870 |
957 | |
958 | switch (*key) { |
959 | case 'i': |
960 | if (klen == 5 && memEQ(key, "input", 5)) { |
961 | input = SvTRUE(*valp); |
962 | break; |
963 | } |
964 | goto fail; |
965 | case 'o': |
966 | if (klen == 6 && memEQ(key, "output", 6)) { |
967 | input = !SvTRUE(*valp); |
968 | break; |
969 | } |
970 | goto fail; |
971 | case 'd': |
972 | if (klen == 7 && memEQ(key, "details", 7)) { |
973 | details = SvTRUE(*valp); |
974 | break; |
975 | } |
976 | goto fail; |
977 | default: |
978 | fail: |
979 | Perl_croak(aTHX_ |
980 | "get_layers: unknown argument '%s'", |
981 | key); |
982 | } |
983 | } |
984 | |
985 | SP -= (items - 1); |
986 | } |
987 | |
988 | sv = POPs; |
159b6efe |
989 | gv = MUTABLE_GV(sv); |
39f7a870 |
990 | |
991 | if (!isGV(sv)) { |
992 | if (SvROK(sv) && isGV(SvRV(sv))) |
159b6efe |
993 | gv = MUTABLE_GV(SvRV(sv)); |
671d49be |
994 | else if (SvPOKp(sv)) |
f776e3cd |
995 | gv = gv_fetchsv(sv, 0, SVt_PVIO); |
39f7a870 |
996 | } |
997 | |
998 | if (gv && (io = GvIO(gv))) { |
c4420975 |
999 | AV* const av = PerlIO_get_layers(aTHX_ input ? |
39f7a870 |
1000 | IoIFP(io) : IoOFP(io)); |
1001 | I32 i; |
c4420975 |
1002 | const I32 last = av_len(av); |
39f7a870 |
1003 | I32 nitem = 0; |
1004 | |
1005 | for (i = last; i >= 0; i -= 3) { |
c4420975 |
1006 | SV * const * const namsvp = av_fetch(av, i - 2, FALSE); |
1007 | SV * const * const argsvp = av_fetch(av, i - 1, FALSE); |
1008 | SV * const * const flgsvp = av_fetch(av, i, FALSE); |
39f7a870 |
1009 | |
c4420975 |
1010 | const bool namok = namsvp && *namsvp && SvPOK(*namsvp); |
1011 | const bool argok = argsvp && *argsvp && SvPOK(*argsvp); |
1012 | const bool flgok = flgsvp && *flgsvp && SvIOK(*flgsvp); |
39f7a870 |
1013 | |
1014 | if (details) { |
92e45a3e |
1015 | /* Indents of 5? Yuck. */ |
1016 | /* We know that PerlIO_get_layers creates a new SV for |
1017 | the name and flags, so we can just take a reference |
1018 | and "steal" it when we free the AV below. */ |
ec3bab8e |
1019 | XPUSHs(namok |
92e45a3e |
1020 | ? sv_2mortal(SvREFCNT_inc_simple_NN(*namsvp)) |
ec3bab8e |
1021 | : &PL_sv_undef); |
1022 | XPUSHs(argok |
92e45a3e |
1023 | ? newSVpvn_flags(SvPVX_const(*argsvp), |
1024 | SvCUR(*argsvp), |
1025 | (SvUTF8(*argsvp) ? SVf_UTF8 : 0) |
1026 | | SVs_TEMP) |
1027 | : &PL_sv_undef); |
1028 | XPUSHs(namok |
1029 | ? sv_2mortal(SvREFCNT_inc_simple_NN(*flgsvp)) |
ec3bab8e |
1030 | : &PL_sv_undef); |
39f7a870 |
1031 | nitem += 3; |
1032 | } |
1033 | else { |
1034 | if (namok && argok) |
1eb9e81d |
1035 | XPUSHs(sv_2mortal(Perl_newSVpvf(aTHX_ "%"SVf"(%"SVf")", |
be2597df |
1036 | SVfARG(*namsvp), |
1eb9e81d |
1037 | SVfARG(*argsvp)))); |
39f7a870 |
1038 | else if (namok) |
92e45a3e |
1039 | XPUSHs(sv_2mortal(SvREFCNT_inc_simple_NN(*namsvp))); |
39f7a870 |
1040 | else |
1041 | XPUSHs(&PL_sv_undef); |
1042 | nitem++; |
1043 | if (flgok) { |
c4420975 |
1044 | const IV flags = SvIVX(*flgsvp); |
39f7a870 |
1045 | |
1046 | if (flags & PERLIO_F_UTF8) { |
84bafc02 |
1047 | XPUSHs(newSVpvs_flags("utf8", SVs_TEMP)); |
39f7a870 |
1048 | nitem++; |
1049 | } |
1050 | } |
1051 | } |
1052 | } |
1053 | |
1054 | SvREFCNT_dec(av); |
1055 | |
1056 | XSRETURN(nitem); |
1057 | } |
1058 | } |
5fef3b4a |
1059 | #endif |
39f7a870 |
1060 | |
1061 | XSRETURN(0); |
1062 | } |
1063 | |
9a7034eb |
1064 | XS(XS_Internals_hash_seed) |
c910b28a |
1065 | { |
97aff369 |
1066 | dVAR; |
c85d3f85 |
1067 | /* Using dXSARGS would also have dITEM and dSP, |
1068 | * which define 2 unused local variables. */ |
557b887a |
1069 | dAXMARK; |
53c1dcc0 |
1070 | PERL_UNUSED_ARG(cv); |
ad73156c |
1071 | PERL_UNUSED_VAR(mark); |
81eaca17 |
1072 | XSRETURN_UV(PERL_HASH_SEED); |
c910b28a |
1073 | } |
1074 | |
008fb0c0 |
1075 | XS(XS_Internals_rehash_seed) |
8e90d776 |
1076 | { |
97aff369 |
1077 | dVAR; |
8e90d776 |
1078 | /* Using dXSARGS would also have dITEM and dSP, |
1079 | * which define 2 unused local variables. */ |
557b887a |
1080 | dAXMARK; |
53c1dcc0 |
1081 | PERL_UNUSED_ARG(cv); |
ad73156c |
1082 | PERL_UNUSED_VAR(mark); |
008fb0c0 |
1083 | XSRETURN_UV(PL_rehash_seed); |
8e90d776 |
1084 | } |
1085 | |
05619474 |
1086 | XS(XS_Internals_HvREHASH) /* Subject to change */ |
1087 | { |
97aff369 |
1088 | dVAR; |
05619474 |
1089 | dXSARGS; |
93c51217 |
1090 | PERL_UNUSED_ARG(cv); |
05619474 |
1091 | if (SvROK(ST(0))) { |
ef8f7699 |
1092 | const HV * const hv = (const HV *) SvRV(ST(0)); |
05619474 |
1093 | if (items == 1 && SvTYPE(hv) == SVt_PVHV) { |
1094 | if (HvREHASH(hv)) |
1095 | XSRETURN_YES; |
1096 | else |
1097 | XSRETURN_NO; |
1098 | } |
1099 | } |
1100 | Perl_croak(aTHX_ "Internals::HvREHASH $hashref"); |
1101 | } |
241d1a3b |
1102 | |
80305961 |
1103 | XS(XS_re_is_regexp) |
1104 | { |
1105 | dVAR; |
1106 | dXSARGS; |
f7e71195 |
1107 | PERL_UNUSED_VAR(cv); |
1108 | |
80305961 |
1109 | if (items != 1) |
afa74d42 |
1110 | croak_xs_usage(cv, "sv"); |
f7e71195 |
1111 | |
80305961 |
1112 | SP -= items; |
f7e71195 |
1113 | |
1114 | if (SvRXOK(ST(0))) { |
1115 | XSRETURN_YES; |
1116 | } else { |
1117 | XSRETURN_NO; |
80305961 |
1118 | } |
1119 | } |
1120 | |
192b9cd1 |
1121 | XS(XS_re_regnames_count) |
80305961 |
1122 | { |
192b9cd1 |
1123 | REGEXP *rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1124 | SV * ret; |
80305961 |
1125 | dVAR; |
1126 | dXSARGS; |
192b9cd1 |
1127 | |
1128 | if (items != 0) |
afa74d42 |
1129 | croak_xs_usage(cv, ""); |
192b9cd1 |
1130 | |
1131 | SP -= items; |
1132 | |
1133 | if (!rx) |
1134 | XSRETURN_UNDEF; |
1135 | |
1136 | ret = CALLREG_NAMED_BUFF_COUNT(rx); |
1137 | |
1138 | SPAGAIN; |
1139 | |
1140 | if (ret) { |
ec83ea38 |
1141 | mXPUSHs(ret); |
192b9cd1 |
1142 | PUTBACK; |
1143 | return; |
1144 | } else { |
1145 | XSRETURN_UNDEF; |
1146 | } |
1147 | } |
1148 | |
1149 | XS(XS_re_regname) |
1150 | { |
1151 | dVAR; |
1152 | dXSARGS; |
1153 | REGEXP * rx; |
1154 | U32 flags; |
1155 | SV * ret; |
1156 | |
28d8d7f4 |
1157 | if (items < 1 || items > 2) |
afa74d42 |
1158 | croak_xs_usage(cv, "name[, all ]"); |
192b9cd1 |
1159 | |
80305961 |
1160 | SP -= items; |
80305961 |
1161 | |
192b9cd1 |
1162 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1163 | |
1164 | if (!rx) |
1165 | XSRETURN_UNDEF; |
1166 | |
1167 | if (items == 2 && SvTRUE(ST(1))) { |
f1b875a0 |
1168 | flags = RXapif_ALL; |
192b9cd1 |
1169 | } else { |
f1b875a0 |
1170 | flags = RXapif_ONE; |
80305961 |
1171 | } |
f1b875a0 |
1172 | ret = CALLREG_NAMED_BUFF_FETCH(rx, ST(0), (flags | RXapif_REGNAME)); |
192b9cd1 |
1173 | |
1174 | if (ret) { |
ec83ea38 |
1175 | mXPUSHs(ret); |
192b9cd1 |
1176 | XSRETURN(1); |
1177 | } |
1178 | XSRETURN_UNDEF; |
80305961 |
1179 | } |
1180 | |
192b9cd1 |
1181 | |
80305961 |
1182 | XS(XS_re_regnames) |
1183 | { |
192b9cd1 |
1184 | dVAR; |
80305961 |
1185 | dXSARGS; |
192b9cd1 |
1186 | REGEXP * rx; |
1187 | U32 flags; |
1188 | SV *ret; |
1189 | AV *av; |
1190 | I32 length; |
1191 | I32 i; |
1192 | SV **entry; |
1193 | |
1194 | if (items > 1) |
afa74d42 |
1195 | croak_xs_usage(cv, "[all]"); |
192b9cd1 |
1196 | |
1197 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1198 | |
1199 | if (!rx) |
1200 | XSRETURN_UNDEF; |
1201 | |
1202 | if (items == 1 && SvTRUE(ST(0))) { |
f1b875a0 |
1203 | flags = RXapif_ALL; |
192b9cd1 |
1204 | } else { |
f1b875a0 |
1205 | flags = RXapif_ONE; |
192b9cd1 |
1206 | } |
1207 | |
80305961 |
1208 | SP -= items; |
80305961 |
1209 | |
f1b875a0 |
1210 | ret = CALLREG_NAMED_BUFF_ALL(rx, (flags | RXapif_REGNAMES)); |
192b9cd1 |
1211 | |
1212 | SPAGAIN; |
1213 | |
1214 | SP -= items; |
1215 | |
1216 | if (!ret) |
1217 | XSRETURN_UNDEF; |
1218 | |
502c6561 |
1219 | av = MUTABLE_AV(SvRV(ret)); |
192b9cd1 |
1220 | length = av_len(av); |
1221 | |
1222 | for (i = 0; i <= length; i++) { |
1223 | entry = av_fetch(av, i, FALSE); |
1224 | |
1225 | if (!entry) |
1226 | Perl_croak(aTHX_ "NULL array element in re::regnames()"); |
1227 | |
ec83ea38 |
1228 | mXPUSHs(SvREFCNT_inc_simple_NN(*entry)); |
80305961 |
1229 | } |
ec83ea38 |
1230 | |
1231 | SvREFCNT_dec(ret); |
1232 | |
192b9cd1 |
1233 | PUTBACK; |
1234 | return; |
80305961 |
1235 | } |
1236 | |
192c1e27 |
1237 | XS(XS_re_regexp_pattern) |
1238 | { |
1239 | dVAR; |
1240 | dXSARGS; |
1241 | REGEXP *re; |
192c1e27 |
1242 | |
1243 | if (items != 1) |
afa74d42 |
1244 | croak_xs_usage(cv, "sv"); |
192c1e27 |
1245 | |
1246 | SP -= items; |
1247 | |
1248 | /* |
1249 | Checks if a reference is a regex or not. If the parameter is |
1250 | not a ref, or is not the result of a qr// then returns false |
1251 | in scalar context and an empty list in list context. |
1252 | Otherwise in list context it returns the pattern and the |
1253 | modifiers, in scalar context it returns the pattern just as it |
1254 | would if the qr// was stringified normally, regardless as |
1255 | to the class of the variable and any strigification overloads |
1256 | on the object. |
1257 | */ |
1258 | |
1259 | if ((re = SvRX(ST(0)))) /* assign deliberate */ |
1260 | { |
1261 | /* Housten, we have a regex! */ |
1262 | SV *pattern; |
1263 | STRLEN left = 0; |
1264 | char reflags[6]; |
1265 | |
1266 | if ( GIMME_V == G_ARRAY ) { |
1267 | /* |
1268 | we are in list context so stringify |
1269 | the modifiers that apply. We ignore "negative |
1270 | modifiers" in this scenario. |
1271 | */ |
1272 | |
1273 | const char *fptr = INT_PAT_MODS; |
1274 | char ch; |
1275 | U16 match_flags = (U16)((RX_EXTFLAGS(re) & PMf_COMPILETIME) |
1276 | >> RXf_PMf_STD_PMMOD_SHIFT); |
1277 | |
1278 | while((ch = *fptr++)) { |
1279 | if(match_flags & 1) { |
1280 | reflags[left++] = ch; |
1281 | } |
1282 | match_flags >>= 1; |
1283 | } |
1284 | |
fb632ce3 |
1285 | pattern = newSVpvn_flags(RX_PRECOMP(re),RX_PRELEN(re), |
1286 | (RX_UTF8(re) ? SVf_UTF8 : 0) | SVs_TEMP); |
192c1e27 |
1287 | |
1288 | /* return the pattern and the modifiers */ |
1289 | XPUSHs(pattern); |
fb632ce3 |
1290 | XPUSHs(newSVpvn_flags(reflags, left, SVs_TEMP)); |
192c1e27 |
1291 | XSRETURN(2); |
1292 | } else { |
1293 | /* Scalar, so use the string that Perl would return */ |
1294 | /* return the pattern in (?msix:..) format */ |
1295 | #if PERL_VERSION >= 11 |
daba3364 |
1296 | pattern = sv_2mortal(newSVsv(MUTABLE_SV(re))); |
192c1e27 |
1297 | #else |
fb632ce3 |
1298 | pattern = newSVpvn_flags(RX_WRAPPED(re), RX_WRAPLEN(re), |
1299 | (RX_UTF8(re) ? SVf_UTF8 : 0) | SVs_TEMP); |
192c1e27 |
1300 | #endif |
1301 | XPUSHs(pattern); |
1302 | XSRETURN(1); |
1303 | } |
1304 | } else { |
1305 | /* It ain't a regexp folks */ |
1306 | if ( GIMME_V == G_ARRAY ) { |
1307 | /* return the empty list */ |
1308 | XSRETURN_UNDEF; |
1309 | } else { |
1310 | /* Because of the (?:..) wrapping involved in a |
1311 | stringified pattern it is impossible to get a |
1312 | result for a real regexp that would evaluate to |
1313 | false. Therefore we can return PL_sv_no to signify |
1314 | that the object is not a regex, this means that one |
1315 | can say |
1316 | |
1317 | if (regex($might_be_a_regex) eq '(?:foo)') { } |
1318 | |
1319 | and not worry about undefined values. |
1320 | */ |
1321 | XSRETURN_NO; |
1322 | } |
1323 | } |
1324 | /* NOT-REACHED */ |
1325 | } |
1326 | |
192b9cd1 |
1327 | XS(XS_Tie_Hash_NamedCapture_FETCH) |
80305961 |
1328 | { |
192b9cd1 |
1329 | dVAR; |
80305961 |
1330 | dXSARGS; |
192b9cd1 |
1331 | REGEXP * rx; |
1332 | U32 flags; |
1333 | SV * ret; |
1334 | |
1335 | if (items != 2) |
afa74d42 |
1336 | croak_xs_usage(cv, "$key, $flags"); |
192b9cd1 |
1337 | |
1338 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1339 | |
1340 | if (!rx) |
1341 | XSRETURN_UNDEF; |
1342 | |
80305961 |
1343 | SP -= items; |
192b9cd1 |
1344 | |
daba3364 |
1345 | flags = (U32)INT2PTR(IV,SvIV(SvRV(MUTABLE_SV(ST(0))))); |
192b9cd1 |
1346 | ret = CALLREG_NAMED_BUFF_FETCH(rx, ST(1), flags); |
1347 | |
1348 | SPAGAIN; |
1349 | |
1350 | if (ret) { |
ec83ea38 |
1351 | mXPUSHs(ret); |
192b9cd1 |
1352 | PUTBACK; |
1353 | return; |
1354 | } |
1355 | XSRETURN_UNDEF; |
1356 | } |
1357 | |
1358 | XS(XS_Tie_Hash_NamedCapture_STORE) |
1359 | { |
1360 | dVAR; |
1361 | dXSARGS; |
1362 | REGEXP * rx; |
1363 | U32 flags; |
1364 | |
1365 | if (items != 3) |
afa74d42 |
1366 | croak_xs_usage(cv, "$key, $value, $flags"); |
192b9cd1 |
1367 | |
1368 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1369 | |
1370 | if (!rx) { |
1371 | if (!PL_localizing) |
f1f66076 |
1372 | Perl_croak(aTHX_ "%s", PL_no_modify); |
192b9cd1 |
1373 | else |
28d8d7f4 |
1374 | XSRETURN_UNDEF; |
80305961 |
1375 | } |
192b9cd1 |
1376 | |
1377 | SP -= items; |
1378 | |
daba3364 |
1379 | flags = (U32)INT2PTR(IV,SvIV(SvRV(MUTABLE_SV(ST(0))))); |
192b9cd1 |
1380 | CALLREG_NAMED_BUFF_STORE(rx,ST(1), ST(2), flags); |
80305961 |
1381 | } |
1382 | |
192b9cd1 |
1383 | XS(XS_Tie_Hash_NamedCapture_DELETE) |
1384 | { |
1385 | dVAR; |
1386 | dXSARGS; |
1387 | REGEXP * rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1388 | U32 flags; |
80305961 |
1389 | |
192b9cd1 |
1390 | if (items != 2) |
afa74d42 |
1391 | croak_xs_usage(cv, "$key, $flags"); |
192b9cd1 |
1392 | |
1393 | if (!rx) |
f1f66076 |
1394 | Perl_croak(aTHX_ "%s", PL_no_modify); |
192b9cd1 |
1395 | |
1396 | SP -= items; |
1397 | |
daba3364 |
1398 | flags = (U32)INT2PTR(IV,SvIV(SvRV(MUTABLE_SV(ST(0))))); |
192b9cd1 |
1399 | CALLREG_NAMED_BUFF_DELETE(rx, ST(1), flags); |
1400 | } |
1401 | |
1402 | XS(XS_Tie_Hash_NamedCapture_CLEAR) |
80305961 |
1403 | { |
192b9cd1 |
1404 | dVAR; |
80305961 |
1405 | dXSARGS; |
192b9cd1 |
1406 | REGEXP * rx; |
1407 | U32 flags; |
1408 | |
1409 | if (items != 1) |
afa74d42 |
1410 | croak_xs_usage(cv, "$flags"); |
192b9cd1 |
1411 | |
1412 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1413 | |
1414 | if (!rx) |
f1f66076 |
1415 | Perl_croak(aTHX_ "%s", PL_no_modify); |
192b9cd1 |
1416 | |
80305961 |
1417 | SP -= items; |
80305961 |
1418 | |
daba3364 |
1419 | flags = (U32)INT2PTR(IV,SvIV(SvRV(MUTABLE_SV(ST(0))))); |
192b9cd1 |
1420 | CALLREG_NAMED_BUFF_CLEAR(rx, flags); |
1421 | } |
1422 | |
1423 | XS(XS_Tie_Hash_NamedCapture_EXISTS) |
1424 | { |
1425 | dVAR; |
1426 | dXSARGS; |
1427 | REGEXP * rx; |
1428 | U32 flags; |
1429 | SV * ret; |
1430 | |
1431 | if (items != 2) |
afa74d42 |
1432 | croak_xs_usage(cv, "$key, $flags"); |
192b9cd1 |
1433 | |
1434 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1435 | |
1436 | if (!rx) |
28d8d7f4 |
1437 | XSRETURN_UNDEF; |
192b9cd1 |
1438 | |
1439 | SP -= items; |
1440 | |
daba3364 |
1441 | flags = (U32)INT2PTR(IV,SvIV(SvRV(MUTABLE_SV(ST(0))))); |
192b9cd1 |
1442 | ret = CALLREG_NAMED_BUFF_EXISTS(rx, ST(1), flags); |
1443 | |
1444 | SPAGAIN; |
1445 | |
1446 | XPUSHs(ret); |
80305961 |
1447 | PUTBACK; |
1448 | return; |
80305961 |
1449 | } |
1450 | |
86aa3d53 |
1451 | XS(XS_Tie_Hash_NamedCapture_FIRSTK) |
192b9cd1 |
1452 | { |
1453 | dVAR; |
1454 | dXSARGS; |
1455 | REGEXP * rx; |
1456 | U32 flags; |
1457 | SV * ret; |
80305961 |
1458 | |
192b9cd1 |
1459 | if (items != 1) |
afa74d42 |
1460 | croak_xs_usage(cv, ""); |
192b9cd1 |
1461 | |
1462 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1463 | |
1464 | if (!rx) |
1465 | XSRETURN_UNDEF; |
1466 | |
1467 | SP -= items; |
1468 | |
daba3364 |
1469 | flags = (U32)INT2PTR(IV,SvIV(SvRV(MUTABLE_SV(ST(0))))); |
192b9cd1 |
1470 | ret = CALLREG_NAMED_BUFF_FIRSTKEY(rx, flags); |
1471 | |
1472 | SPAGAIN; |
1473 | |
1474 | if (ret) { |
ec83ea38 |
1475 | mXPUSHs(ret); |
192b9cd1 |
1476 | PUTBACK; |
1477 | } else { |
1478 | XSRETURN_UNDEF; |
1479 | } |
1480 | |
1481 | } |
1482 | |
86aa3d53 |
1483 | XS(XS_Tie_Hash_NamedCapture_NEXTK) |
80305961 |
1484 | { |
192b9cd1 |
1485 | dVAR; |
80305961 |
1486 | dXSARGS; |
192b9cd1 |
1487 | REGEXP * rx; |
1488 | U32 flags; |
1489 | SV * ret; |
1490 | |
1491 | if (items != 2) |
afa74d42 |
1492 | croak_xs_usage(cv, "$lastkey"); |
192b9cd1 |
1493 | |
1494 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1495 | |
1496 | if (!rx) |
1497 | XSRETURN_UNDEF; |
80305961 |
1498 | |
80305961 |
1499 | SP -= items; |
192b9cd1 |
1500 | |
daba3364 |
1501 | flags = (U32)INT2PTR(IV,SvIV(SvRV(MUTABLE_SV(ST(0))))); |
192b9cd1 |
1502 | ret = CALLREG_NAMED_BUFF_NEXTKEY(rx, ST(1), flags); |
1503 | |
1504 | SPAGAIN; |
1505 | |
1506 | if (ret) { |
ec83ea38 |
1507 | mXPUSHs(ret); |
80305961 |
1508 | } else { |
1509 | XSRETURN_UNDEF; |
1510 | } |
1511 | PUTBACK; |
192b9cd1 |
1512 | } |
1513 | |
1514 | XS(XS_Tie_Hash_NamedCapture_SCALAR) |
1515 | { |
1516 | dVAR; |
1517 | dXSARGS; |
1518 | REGEXP * rx; |
1519 | U32 flags; |
1520 | SV * ret; |
1521 | |
1522 | if (items != 1) |
afa74d42 |
1523 | croak_xs_usage(cv, ""); |
192b9cd1 |
1524 | |
1525 | rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; |
1526 | |
1527 | if (!rx) |
1528 | XSRETURN_UNDEF; |
1529 | |
1530 | SP -= items; |
1531 | |
daba3364 |
1532 | flags = (U32)INT2PTR(IV,SvIV(SvRV(MUTABLE_SV(ST(0))))); |
192b9cd1 |
1533 | ret = CALLREG_NAMED_BUFF_SCALAR(rx, flags); |
1534 | |
1535 | SPAGAIN; |
1536 | |
1537 | if (ret) { |
ec83ea38 |
1538 | mXPUSHs(ret); |
192b9cd1 |
1539 | PUTBACK; |
1540 | return; |
1541 | } else { |
1542 | XSRETURN_UNDEF; |
1543 | } |
1544 | } |
1545 | |
1546 | XS(XS_Tie_Hash_NamedCapture_flags) |
1547 | { |
1548 | dVAR; |
1549 | dXSARGS; |
1550 | |
1551 | if (items != 0) |
afa74d42 |
1552 | croak_xs_usage(cv, ""); |
192b9cd1 |
1553 | |
6e449a3a |
1554 | mXPUSHu(RXapif_ONE); |
1555 | mXPUSHu(RXapif_ALL); |
192b9cd1 |
1556 | PUTBACK; |
1557 | return; |
80305961 |
1558 | } |
1559 | |
1560 | |
241d1a3b |
1561 | /* |
1562 | * Local variables: |
1563 | * c-indentation-style: bsd |
1564 | * c-basic-offset: 4 |
1565 | * indent-tabs-mode: t |
1566 | * End: |
1567 | * |
37442d52 |
1568 | * ex: set ts=8 sts=4 sw=4 noet: |
1569 | */ |