Commit | Line | Data |
8995e827 |
1 | |
2 | #include "EXTERN.h" |
3 | #include "perl.h" |
4 | #include "XSUB.h" |
8995e827 |
5 | |
29e61e10 |
6 | /* Most of this code is backported from the bleadperl patch's |
b23e9cb9 |
7 | mro.c, and then modified to work with Class::C3's |
8 | internals. |
9 | */ |
8995e827 |
10 | |
b23e9cb9 |
11 | AV* |
12 | __mro_linear_isa_c3(pTHX_ HV* stash, HV* cache, I32 level) |
13 | { |
14 | AV* retval; |
15 | GV** gvp; |
16 | GV* gv; |
17 | AV* isa; |
18 | const char* stashname; |
19 | STRLEN stashname_len; |
bb82f0c1 |
20 | I32 made_mortal_cache = 0; |
8995e827 |
21 | |
b23e9cb9 |
22 | assert(stash); |
bb82f0c1 |
23 | assert(HvAUX(stash)); |
8995e827 |
24 | |
b23e9cb9 |
25 | stashname = HvNAME(stash); |
26 | stashname_len = strlen(stashname); |
27 | if (!stashname) |
28 | Perl_croak(aTHX_ |
29 | "Can't linearize anonymous symbol table"); |
8995e827 |
30 | |
b23e9cb9 |
31 | if (level > 100) |
32 | Perl_croak(aTHX_ "Recursive inheritance detected in package '%s'", |
33 | stashname); |
8995e827 |
34 | |
b23e9cb9 |
35 | if(!cache) { |
f0294f1b |
36 | cache = (HV*)sv_2mortal((SV*)newHV()); |
bb82f0c1 |
37 | made_mortal_cache = 1; |
b23e9cb9 |
38 | } |
39 | else { |
6bf46d18 |
40 | SV** cache_entry = hv_fetch(cache, stashname, stashname_len, 0); |
41 | if(cache_entry) |
42 | return (AV*)SvREFCNT_inc(*cache_entry); |
b23e9cb9 |
43 | } |
44 | |
45 | /* not in cache, make a new one */ |
46 | |
b23e9cb9 |
47 | gvp = (GV**)hv_fetch(stash, "ISA", 3, FALSE); |
48 | isa = (gvp && (gv = *gvp) && gv != (GV*)&PL_sv_undef) ? GvAV(gv) : NULL; |
49 | |
50 | if(isa && AvFILLp(isa) >= 0) { |
51 | SV** seqs_ptr; |
52 | I32 seqs_items; |
bb82f0c1 |
53 | HV* const tails = (HV*)sv_2mortal((SV*)newHV()); |
54 | AV* const seqs = (AV*)sv_2mortal((SV*)newAV()); |
55 | I32* heads; |
56 | |
b23e9cb9 |
57 | I32 items = AvFILLp(isa) + 1; |
58 | SV** isa_ptr = AvARRAY(isa); |
59 | while(items--) { |
bb82f0c1 |
60 | SV* const isa_item = *isa_ptr++; |
61 | HV* const isa_item_stash = gv_stashsv(isa_item, 0); |
b23e9cb9 |
62 | if(!isa_item_stash) { |
bb82f0c1 |
63 | AV* const isa_lin = newAV(); |
b23e9cb9 |
64 | av_push(isa_lin, newSVsv(isa_item)); |
bb82f0c1 |
65 | av_push(seqs, (SV*)isa_lin); |
b23e9cb9 |
66 | } |
67 | else { |
bb82f0c1 |
68 | AV* const isa_lin = __mro_linear_isa_c3(aTHX_ isa_item_stash, cache, level + 1); /* recursion */ |
69 | av_push(seqs, (SV*)isa_lin); |
b23e9cb9 |
70 | } |
b23e9cb9 |
71 | } |
bb82f0c1 |
72 | av_push(seqs, SvREFCNT_inc((SV*)isa)); |
73 | |
74 | /* This builds "heads", which as an array of integer array |
75 | indices, one per seq, which point at the virtual "head" |
76 | of the seq (initially zero) */ |
77 | |
78 | Newz(0xdead, heads, AvFILLp(seqs)+1, I32); |
b23e9cb9 |
79 | |
bb82f0c1 |
80 | /* This builds %tails, which has one key for every class |
81 | mentioned in the tail of any sequence in @seqs (tail meaning |
82 | everything after the first class, the "head"). The value |
83 | is how many times this key appears in the tails of @seqs. |
84 | */ |
b23e9cb9 |
85 | seqs_ptr = AvARRAY(seqs); |
86 | seqs_items = AvFILLp(seqs) + 1; |
87 | while(seqs_items--) { |
bb82f0c1 |
88 | AV* const seq = (AV*)*seqs_ptr++; |
b23e9cb9 |
89 | I32 seq_items = AvFILLp(seq); |
90 | if(seq_items > 0) { |
91 | SV** seq_ptr = AvARRAY(seq) + 1; |
92 | while(seq_items--) { |
bb82f0c1 |
93 | SV* const seqitem = *seq_ptr++; |
94 | HE* const he = hv_fetch_ent(tails, seqitem, 0, 0); |
b23e9cb9 |
95 | if(!he) { |
96 | hv_store_ent(tails, seqitem, newSViv(1), 0); |
97 | } |
98 | else { |
bb82f0c1 |
99 | SV* const val = HeVAL(he); |
b23e9cb9 |
100 | sv_inc(val); |
101 | } |
102 | } |
103 | } |
104 | } |
105 | |
bb82f0c1 |
106 | /* Initialize retval to build the return value in */ |
107 | retval = newAV(); |
108 | av_push(retval, newSVpvn(stashname, stashname_len)); /* us first */ |
109 | |
b23e9cb9 |
110 | while(1) { |
b23e9cb9 |
111 | SV* cand = NULL; |
112 | SV* winner = NULL; |
bb82f0c1 |
113 | int s; |
114 | |
115 | SV** const avptr = AvARRAY(seqs); |
116 | for(s = 0; s <= AvFILLp(seqs); s++) { |
b23e9cb9 |
117 | SV** svp; |
bb82f0c1 |
118 | AV * const seq = (AV*)(avptr[s]); |
119 | SV* seqhead; |
120 | if(!seq) continue; |
121 | svp = av_fetch(seq, heads[s], 0); |
b23e9cb9 |
122 | seqhead = *svp; |
123 | if(!winner) { |
bb82f0c1 |
124 | HE* tail_entry; |
125 | SV* val; |
b23e9cb9 |
126 | cand = seqhead; |
127 | if((tail_entry = hv_fetch_ent(tails, cand, 0, 0)) |
128 | && (val = HeVAL(tail_entry)) |
129 | && (SvIVx(val) > 0)) |
130 | continue; |
131 | winner = newSVsv(cand); |
132 | av_push(retval, winner); |
133 | } |
134 | if(!sv_cmp(seqhead, winner)) { |
bb82f0c1 |
135 | const int new_head = ++heads[s]; |
136 | if(new_head > AvFILLp(seq)) { |
137 | SvREFCNT_dec(avptr[s]); |
138 | avptr[s] = NULL; |
139 | } |
140 | else { |
141 | HE* tail_entry; |
142 | SV* val; |
143 | /* Because we know this new seqhead used to be |
144 | a tail, we can assume it is in tails and has |
145 | a positive value, which we need to dec */ |
146 | svp = av_fetch(seq, new_head, 0); |
147 | seqhead = *svp; |
148 | tail_entry = hv_fetch_ent(tails, seqhead, 0, 0); |
149 | val = HeVAL(tail_entry); |
150 | sv_dec(val); |
151 | } |
b23e9cb9 |
152 | } |
153 | } |
bb82f0c1 |
154 | if(!cand) { |
155 | Safefree(heads); |
156 | break; |
157 | } |
62eb9d08 |
158 | if(!winner) { |
159 | SvREFCNT_dec(retval); |
bb82f0c1 |
160 | Safefree(heads); |
b23e9cb9 |
161 | Perl_croak(aTHX_ "Inconsistent hierarchy during C3 merge of class '%s': " |
162 | "merging failed on parent '%s'", stashname, SvPV_nolen(cand)); |
62eb9d08 |
163 | } |
b23e9cb9 |
164 | } |
165 | } |
bb82f0c1 |
166 | else { /* @ISA does not exist, or was empty */ |
167 | retval = newAV(); |
168 | av_push(retval, newSVpvn(stashname, stashname_len)); /* us first */ |
169 | } |
b23e9cb9 |
170 | |
171 | SvREADONLY_on(retval); |
bb82f0c1 |
172 | |
173 | if(!made_mortal_cache) { |
174 | SvREFCNT_inc(retval); |
175 | hv_store(cache, stashname, stashname_len, (SV*)retval, 0); |
176 | } |
177 | |
178 | return retval; |
b23e9cb9 |
179 | } |
180 | |
181 | STATIC I32 |
182 | __dopoptosub_at(const PERL_CONTEXT *cxstk, I32 startingblock) { |
183 | I32 i; |
184 | for (i = startingblock; i >= 0; i--) { |
185 | if(CxTYPE((PERL_CONTEXT*)(&cxstk[i])) == CXt_SUB) return i; |
186 | } |
187 | return i; |
188 | } |
189 | |
190 | STATIC SV* |
191 | __nextcan(pTHX_ SV* self, I32 throw_nomethod) |
192 | { |
193 | register I32 cxix; |
194 | register const PERL_CONTEXT *ccstack = cxstack; |
195 | const PERL_SI *top_si = PL_curstackinfo; |
196 | HV* selfstash; |
197 | GV* cvgv; |
198 | SV *stashname; |
199 | const char *fq_subname; |
200 | const char *subname; |
201 | STRLEN fq_subname_len; |
202 | STRLEN stashname_len; |
203 | STRLEN subname_len; |
204 | SV* sv; |
205 | GV** gvp; |
206 | AV* linear_av; |
207 | SV** linear_svp; |
208 | SV* linear_sv; |
209 | HV* cstash; |
210 | GV* candidate = NULL; |
211 | CV* cand_cv = NULL; |
212 | const char *hvname; |
213 | I32 items; |
6c88cc6a |
214 | HV* nmcache; |
b23e9cb9 |
215 | HE* cache_entry; |
22c6f594 |
216 | SV* cachekey; |
b23e9cb9 |
217 | |
218 | if(sv_isobject(self)) |
219 | selfstash = SvSTASH(SvRV(self)); |
220 | else |
221 | selfstash = gv_stashsv(self, 0); |
222 | |
223 | assert(selfstash); |
224 | |
225 | hvname = HvNAME(selfstash); |
226 | if (!hvname) |
625e16df |
227 | Perl_croak(aTHX_ "Can't use anonymous symbol table for method lookup"); |
b23e9cb9 |
228 | |
229 | cxix = __dopoptosub_at(cxstack, cxstack_ix); |
230 | |
231 | /* This block finds the contextually-enclosing fully-qualified subname, |
232 | much like looking at (caller($i))[3] until you find a real sub that |
233 | isn't ANON, etc */ |
234 | for (;;) { |
235 | /* we may be in a higher stacklevel, so dig down deeper */ |
236 | while (cxix < 0) { |
237 | if(top_si->si_type == PERLSI_MAIN) |
625e16df |
238 | Perl_croak(aTHX_ "next::method/next::can/maybe::next::method must be used in method context"); |
b23e9cb9 |
239 | top_si = top_si->si_prev; |
240 | ccstack = top_si->si_cxstack; |
241 | cxix = __dopoptosub_at(ccstack, top_si->si_cxix); |
242 | } |
243 | |
244 | if(CxTYPE((PERL_CONTEXT*)(&ccstack[cxix])) != CXt_SUB |
245 | || (PL_DBsub && GvCV(PL_DBsub) && ccstack[cxix].blk_sub.cv == GvCV(PL_DBsub))) { |
246 | cxix = __dopoptosub_at(ccstack, cxix - 1); |
247 | continue; |
248 | } |
249 | |
250 | { |
251 | const I32 dbcxix = __dopoptosub_at(ccstack, cxix - 1); |
252 | if (PL_DBsub && GvCV(PL_DBsub) && dbcxix >= 0 && ccstack[dbcxix].blk_sub.cv == GvCV(PL_DBsub)) { |
253 | if(CxTYPE((PERL_CONTEXT*)(&ccstack[dbcxix])) != CXt_SUB) { |
254 | cxix = dbcxix; |
255 | continue; |
256 | } |
257 | } |
258 | } |
259 | |
260 | cvgv = CvGV(ccstack[cxix].blk_sub.cv); |
261 | |
262 | if(!isGV(cvgv)) { |
263 | cxix = __dopoptosub_at(ccstack, cxix - 1); |
264 | continue; |
265 | } |
266 | |
267 | /* we found a real sub here */ |
268 | sv = sv_2mortal(newSV(0)); |
269 | |
270 | gv_efullname3(sv, cvgv, NULL); |
271 | |
272 | fq_subname = SvPVX(sv); |
273 | fq_subname_len = SvCUR(sv); |
274 | |
275 | subname = strrchr(fq_subname, ':'); |
276 | if(!subname) |
625e16df |
277 | Perl_croak(aTHX_ "next::method/next::can/maybe::next::method cannot find enclosing method"); |
b23e9cb9 |
278 | |
279 | subname++; |
280 | subname_len = fq_subname_len - (subname - fq_subname); |
281 | if(subname_len == 8 && strEQ(subname, "__ANON__")) { |
282 | cxix = __dopoptosub_at(ccstack, cxix - 1); |
283 | continue; |
284 | } |
285 | break; |
286 | } |
287 | |
288 | /* If we made it to here, we found our context */ |
289 | |
22c6f594 |
290 | /* cachekey = "objpkg|context::method::name" */ |
291 | cachekey = sv_2mortal(newSVpv(hvname, 0)); |
292 | sv_catpvn(cachekey, "|", 1); |
293 | sv_catsv(cachekey, sv); |
b23e9cb9 |
294 | |
6c88cc6a |
295 | nmcache = get_hv("next::METHOD_CACHE", 1); |
22c6f594 |
296 | if((cache_entry = hv_fetch_ent(nmcache, cachekey, 0, 0))) { |
b23e9cb9 |
297 | SV* val = HeVAL(cache_entry); |
298 | if(val == &PL_sv_undef) { |
299 | if(throw_nomethod) |
625e16df |
300 | Perl_croak(aTHX_ "No next::method '%s' found for %s", subname, hvname); |
b23e9cb9 |
301 | return &PL_sv_undef; |
302 | } |
303 | return SvREFCNT_inc(val); |
304 | } |
b23e9cb9 |
305 | |
306 | /* beyond here is just for cache misses, so perf isn't as critical */ |
307 | |
308 | stashname_len = subname - fq_subname - 2; |
309 | stashname = sv_2mortal(newSVpvn(fq_subname, stashname_len)); |
310 | |
62eb9d08 |
311 | linear_av = __mro_linear_isa_c3(aTHX_ selfstash, NULL, 0); |
b23e9cb9 |
312 | |
313 | linear_svp = AvARRAY(linear_av); |
314 | items = AvFILLp(linear_av) + 1; |
315 | |
316 | while (items--) { |
317 | linear_sv = *linear_svp++; |
318 | assert(linear_sv); |
319 | if(sv_eq(linear_sv, stashname)) |
320 | break; |
321 | } |
322 | |
323 | if(items > 0) { |
29e61e10 |
324 | SV* sub_sv = sv_2mortal(newSVpv(subname, subname_len)); |
325 | HV* cc3_mro = get_hv("Class::C3::MRO", 0); |
29e61e10 |
326 | |
b23e9cb9 |
327 | while (items--) { |
328 | linear_sv = *linear_svp++; |
329 | assert(linear_sv); |
29e61e10 |
330 | |
331 | if(cc3_mro) { |
332 | HE* he_cc3_mro_class = hv_fetch_ent(cc3_mro, linear_sv, 0, 0); |
333 | if(he_cc3_mro_class) { |
3499e05c |
334 | SV* cc3_mro_class_sv = HeVAL(he_cc3_mro_class); |
335 | if(SvROK(cc3_mro_class_sv)) { |
336 | HV* cc3_mro_class = (HV*)SvRV(cc3_mro_class_sv); |
337 | SV** svp_cc3_mro_class_methods = hv_fetch(cc3_mro_class, "methods", 7, 0); |
338 | if(svp_cc3_mro_class_methods) { |
339 | SV* cc3_mro_class_methods_sv = *svp_cc3_mro_class_methods; |
340 | if(SvROK(cc3_mro_class_methods_sv)) { |
341 | HV* cc3_mro_class_methods = (HV*)SvRV(cc3_mro_class_methods_sv); |
342 | if(hv_exists_ent(cc3_mro_class_methods, sub_sv, 0)) |
343 | continue; |
344 | } |
345 | } |
29e61e10 |
346 | } |
347 | } |
348 | } |
349 | |
b23e9cb9 |
350 | cstash = gv_stashsv(linear_sv, FALSE); |
351 | |
352 | if (!cstash) { |
353 | if (ckWARN(WARN_MISC)) |
354 | Perl_warner(aTHX_ packWARN(WARN_MISC), "Can't locate package %"SVf" for @%s::ISA", |
355 | (void*)linear_sv, hvname); |
356 | continue; |
357 | } |
358 | |
359 | assert(cstash); |
360 | |
b23e9cb9 |
361 | gvp = (GV**)hv_fetch(cstash, subname, subname_len, 0); |
362 | if (!gvp) continue; |
363 | |
364 | candidate = *gvp; |
365 | assert(candidate); |
366 | |
367 | if (SvTYPE(candidate) != SVt_PVGV) |
368 | gv_init(candidate, cstash, subname, subname_len, TRUE); |
369 | if (SvTYPE(candidate) == SVt_PVGV && (cand_cv = GvCV(candidate)) && !GvCVGEN(candidate)) { |
62eb9d08 |
370 | SvREFCNT_dec(linear_av); |
b23e9cb9 |
371 | SvREFCNT_inc((SV*)cand_cv); |
22c6f594 |
372 | hv_store_ent(nmcache, newSVsv(cachekey), (SV*)cand_cv, 0); |
b23e9cb9 |
373 | return (SV*)cand_cv; |
374 | } |
375 | } |
376 | } |
377 | |
62eb9d08 |
378 | SvREFCNT_dec(linear_av); |
22c6f594 |
379 | hv_store_ent(nmcache, newSVsv(cachekey), &PL_sv_undef, 0); |
b23e9cb9 |
380 | if(throw_nomethod) |
625e16df |
381 | Perl_croak(aTHX_ "No next::method '%s' found for %s", subname, hvname); |
b23e9cb9 |
382 | return &PL_sv_undef; |
383 | } |
384 | |
385 | XS(XS_Class_C3_XS_calculateMRO); |
386 | XS(XS_Class_C3_XS_calculateMRO) |
387 | { |
388 | #ifdef dVAR |
389 | dVAR; dXSARGS; |
390 | #else |
391 | dXSARGS; |
392 | #endif |
393 | |
394 | SV* classname; |
395 | HV* class_stash; |
396 | HV* cache = NULL; |
397 | AV* res; |
398 | I32 res_items; |
399 | I32 ret_items; |
400 | SV** res_ptr; |
401 | |
402 | if(items < 1 || items > 2) |
403 | croak("Usage: calculateMRO(classname[, cache])"); |
404 | |
405 | classname = ST(0); |
f0294f1b |
406 | if(items == 2) cache = (HV*)SvRV(ST(1)); |
b23e9cb9 |
407 | |
408 | class_stash = gv_stashsv(classname, 0); |
625e16df |
409 | if(!class_stash) |
410 | Perl_croak(aTHX_ "No such class: '%s'!", SvPV_nolen(classname)); |
b23e9cb9 |
411 | |
62eb9d08 |
412 | res = __mro_linear_isa_c3(aTHX_ class_stash, cache, 0); |
b23e9cb9 |
413 | |
b23e9cb9 |
414 | res_items = ret_items = AvFILLp(res) + 1; |
415 | res_ptr = AvARRAY(res); |
416 | |
417 | SP -= items; |
418 | |
419 | while(res_items--) { |
420 | SV* res_item = *res_ptr++; |
62eb9d08 |
421 | XPUSHs(sv_2mortal(newSVsv(res_item))); |
b23e9cb9 |
422 | } |
62eb9d08 |
423 | SvREFCNT_dec(res); |
b23e9cb9 |
424 | |
425 | PUTBACK; |
426 | |
427 | return; |
428 | } |
429 | |
8feecaf9 |
430 | XS(XS_Class_C3_XS_plsubgen); |
431 | XS(XS_Class_C3_XS_plsubgen) |
432 | { |
433 | #ifdef dVAR |
434 | dVAR; dXSARGS; |
435 | #else |
436 | dXSARGS; |
437 | #endif |
438 | |
439 | SP -= items; |
440 | XPUSHs(sv_2mortal(newSViv(PL_sub_generation))); |
441 | PUTBACK; |
442 | return; |
443 | } |
444 | |
625e16df |
445 | XS(XS_Class_C3_XS_calc_mdt); |
446 | XS(XS_Class_C3_XS_calc_mdt) |
447 | { |
448 | #ifdef dVAR |
449 | dVAR; dXSARGS; |
450 | #else |
451 | dXSARGS; |
452 | #endif |
453 | |
454 | SV* classname; |
455 | HV* cache; |
456 | HV* class_stash; |
457 | AV* class_mro; |
458 | HV* our_c3mro; /* $Class::C3::MRO{classname} */ |
79782a49 |
459 | SV* has_ovf = NULL; |
625e16df |
460 | HV* methods; |
461 | I32 mroitems; |
462 | |
463 | /* temps */ |
464 | HV* hv; |
465 | HE* he; |
625e16df |
466 | SV** svp; |
467 | |
468 | if(items < 1 || items > 2) |
469 | croak("Usage: calculate_method_dispatch_table(classname[, cache])"); |
470 | |
471 | classname = ST(0); |
472 | class_stash = gv_stashsv(classname, 0); |
473 | if(!class_stash) |
474 | Perl_croak(aTHX_ "No such class: '%s'!", SvPV_nolen(classname)); |
475 | |
476 | if(items == 2) cache = (HV*)SvRV(ST(1)); |
477 | |
478 | class_mro = __mro_linear_isa_c3(aTHX_ class_stash, cache, 0); |
479 | |
480 | our_c3mro = newHV(); |
bb82f0c1 |
481 | hv_store(our_c3mro, "MRO", 3, (SV*)newRV_noinc((SV*)class_mro), 0); |
625e16df |
482 | |
483 | hv = get_hv("Class::C3::MRO", 1); |
484 | hv_store_ent(hv, classname, (SV*)newRV_noinc((SV*)our_c3mro), 0); |
485 | |
486 | methods = newHV(); |
487 | |
488 | /* skip first entry */ |
489 | mroitems = AvFILLp(class_mro); |
490 | svp = AvARRAY(class_mro) + 1; |
491 | while(mroitems--) { |
492 | SV* mro_class = *svp++; |
493 | HV* mro_stash = gv_stashsv(mro_class, 0); |
494 | |
495 | if(!mro_stash) continue; |
496 | |
79782a49 |
497 | if(!has_ovf) { |
625e16df |
498 | SV** ovfp = hv_fetch(mro_stash, "()", 2, 0); |
499 | if(ovfp) has_ovf = *ovfp; |
79782a49 |
500 | } |
625e16df |
501 | |
502 | hv_iterinit(mro_stash); |
503 | while(he = hv_iternext(mro_stash)) { |
504 | CV* code; |
505 | SV* mskey; |
79782a49 |
506 | SV* msval; |
507 | HE* ourent; |
508 | HV* meth_hash; |
509 | SV* orig; |
625e16df |
510 | |
511 | mskey = hv_iterkeysv(he); |
512 | if(hv_exists_ent(methods, mskey, 0)) continue; |
79782a49 |
513 | |
514 | msval = hv_iterval(mro_stash, he); |
515 | if(SvTYPE(msval) != SVt_PVGV || !(code = GvCVu(msval))) |
516 | continue; |
517 | |
518 | if((ourent = hv_fetch_ent(class_stash, mskey, 0, 0))) { |
519 | SV* val = HeVAL(ourent); |
520 | if(val && SvTYPE(val) == SVt_PVGV && GvCVu(val)) |
625e16df |
521 | continue; |
522 | } |
523 | |
79782a49 |
524 | meth_hash = newHV(); |
525 | orig = newSVsv(mro_class); |
526 | sv_catpvn(orig, "::", 2); |
527 | sv_catsv(orig, mskey); |
528 | hv_store(meth_hash, "orig", 4, orig, 0); |
529 | hv_store(meth_hash, "code", 4, newRV_inc((SV*)code), 0); |
530 | hv_store_ent(methods, mskey, newRV_noinc((SV*)meth_hash), 0); |
625e16df |
531 | } |
532 | } |
533 | |
534 | hv_store(our_c3mro, "methods", 7, newRV_noinc((SV*)methods), 0); |
79782a49 |
535 | if(has_ovf) hv_store(our_c3mro, "has_overload_fallback", 21, SvREFCNT_inc(has_ovf), 0); |
625e16df |
536 | XSRETURN_EMPTY; |
537 | } |
538 | |
b23e9cb9 |
539 | XS(XS_next_can); |
540 | XS(XS_next_can) |
541 | { |
542 | #ifdef dVAR |
543 | dVAR; dXSARGS; |
544 | #else |
545 | dXSARGS; |
546 | #endif |
547 | |
548 | SV* self = ST(0); |
b36f79e1 |
549 | SV* methcv = __nextcan(aTHX_ self, 0); |
b23e9cb9 |
550 | |
551 | PERL_UNUSED_VAR(items); |
552 | |
553 | if(methcv == &PL_sv_undef) { |
554 | ST(0) = &PL_sv_undef; |
555 | } |
556 | else { |
557 | ST(0) = sv_2mortal(newRV_inc(methcv)); |
558 | } |
559 | |
560 | XSRETURN(1); |
561 | } |
562 | |
563 | XS(XS_next_method); |
564 | XS(XS_next_method) |
565 | { |
566 | dMARK; |
567 | dAX; |
568 | SV* self = ST(0); |
b36f79e1 |
569 | SV* methcv = __nextcan(aTHX_ self, 1); |
b23e9cb9 |
570 | |
571 | PL_markstack_ptr++; |
572 | call_sv(methcv, GIMME_V); |
573 | } |
574 | |
575 | XS(XS_maybe_next_method); |
576 | XS(XS_maybe_next_method) |
577 | { |
578 | dMARK; |
579 | dAX; |
580 | SV* self = ST(0); |
b36f79e1 |
581 | SV* methcv = __nextcan(aTHX_ self, 0); |
b23e9cb9 |
582 | |
583 | if(methcv == &PL_sv_undef) { |
584 | ST(0) = &PL_sv_undef; |
585 | XSRETURN(1); |
586 | } |
587 | |
588 | PL_markstack_ptr++; |
589 | call_sv(methcv, GIMME_V); |
590 | } |
591 | |
592 | MODULE = Class::C3::XS PACKAGE = Class::C3::XS |
593 | |
594 | BOOT: |
595 | newXS("Class::C3::XS::calculateMRO", XS_Class_C3_XS_calculateMRO, __FILE__); |
8feecaf9 |
596 | newXS("Class::C3::XS::_plsubgen", XS_Class_C3_XS_plsubgen, __FILE__); |
625e16df |
597 | newXS("Class::C3::XS::_calculate_method_dispatch_table", XS_Class_C3_XS_calc_mdt, __FILE__); |
b23e9cb9 |
598 | newXS("next::can", XS_next_can, __FILE__); |
599 | newXS("next::method", XS_next_method, __FILE__); |
600 | newXS("maybe::next::method", XS_maybe_next_method, __FILE__); |
625e16df |
601 | |