Commit | Line | Data |
---|---|---|
a0d0e21e LW |
1 | /* pp_hot.c |
2 | * | |
9607fc9c | 3 | * Copyright (c) 1991-1997, Larry Wall |
a0d0e21e LW |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public | |
6 | * License or the Artistic License, as specified in the README file. | |
7 | * | |
8 | */ | |
9 | ||
10 | /* | |
11 | * Then he heard Merry change the note, and up went the Horn-cry of Buckland, | |
12 | * shaking the air. | |
13 | * | |
14 | * Awake! Awake! Fear, Fire, Foes! Awake! | |
15 | * Fire, Foes! Awake! | |
16 | */ | |
17 | ||
18 | #include "EXTERN.h" | |
19 | #include "perl.h" | |
20 | ||
8ac85365 NIS |
21 | #ifdef I_UNISTD |
22 | #include <unistd.h> | |
23 | #endif | |
24 | ||
a0d0e21e LW |
25 | /* Hot code. */ |
26 | ||
11343788 MB |
27 | #ifdef USE_THREADS |
28 | static void | |
8ac85365 | 29 | unset_cvowner(void *cvarg) |
11343788 MB |
30 | { |
31 | register CV* cv = (CV *) cvarg; | |
32 | #ifdef DEBUGGING | |
33 | dTHR; | |
34 | #endif /* DEBUGGING */ | |
35 | ||
1fd28e87 MB |
36 | DEBUG_L((PerlIO_printf(PerlIO_stderr(), "%p unsetting CvOWNER of %p:%s\n", |
37 | thr, cv, SvPEEK((SV*)cv)))); | |
11343788 | 38 | MUTEX_LOCK(CvMUTEXP(cv)); |
77a005ab MB |
39 | DEBUG_L(if (CvDEPTH(cv) != 0) |
40 | PerlIO_printf(PerlIO_stderr(), "depth %ld != 0\n", | |
41 | CvDEPTH(cv));); | |
11343788 MB |
42 | assert(thr == CvOWNER(cv)); |
43 | CvOWNER(cv) = 0; | |
11343788 MB |
44 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
45 | SvREFCNT_dec(cv); | |
46 | } | |
11343788 MB |
47 | #endif /* USE_THREADS */ |
48 | ||
a0d0e21e LW |
49 | PP(pp_const) |
50 | { | |
4e35701f | 51 | djSP; |
a0d0e21e LW |
52 | XPUSHs(cSVOP->op_sv); |
53 | RETURN; | |
54 | } | |
55 | ||
56 | PP(pp_nextstate) | |
57 | { | |
58 | curcop = (COP*)op; | |
59 | TAINT_NOT; /* Each statement is presumed innocent */ | |
60 | stack_sp = stack_base + cxstack[cxstack_ix].blk_oldsp; | |
61 | FREETMPS; | |
62 | return NORMAL; | |
63 | } | |
64 | ||
65 | PP(pp_gvsv) | |
66 | { | |
4e35701f | 67 | djSP; |
924508f0 | 68 | EXTEND(SP,1); |
a0d0e21e LW |
69 | if (op->op_private & OPpLVAL_INTRO) |
70 | PUSHs(save_scalar(cGVOP->op_gv)); | |
71 | else | |
72 | PUSHs(GvSV(cGVOP->op_gv)); | |
73 | RETURN; | |
74 | } | |
75 | ||
76 | PP(pp_null) | |
77 | { | |
78 | return NORMAL; | |
79 | } | |
80 | ||
81 | PP(pp_pushmark) | |
82 | { | |
83 | PUSHMARK(stack_sp); | |
84 | return NORMAL; | |
85 | } | |
86 | ||
87 | PP(pp_stringify) | |
88 | { | |
4e35701f | 89 | djSP; dTARGET; |
a0d0e21e LW |
90 | STRLEN len; |
91 | char *s; | |
92 | s = SvPV(TOPs,len); | |
93 | sv_setpvn(TARG,s,len); | |
94 | SETTARG; | |
95 | RETURN; | |
96 | } | |
97 | ||
98 | PP(pp_gv) | |
99 | { | |
4e35701f | 100 | djSP; |
a0d0e21e LW |
101 | XPUSHs((SV*)cGVOP->op_gv); |
102 | RETURN; | |
103 | } | |
104 | ||
105 | PP(pp_and) | |
106 | { | |
4e35701f | 107 | djSP; |
a0d0e21e LW |
108 | if (!SvTRUE(TOPs)) |
109 | RETURN; | |
110 | else { | |
111 | --SP; | |
112 | RETURNOP(cLOGOP->op_other); | |
113 | } | |
114 | } | |
115 | ||
116 | PP(pp_sassign) | |
117 | { | |
4e35701f | 118 | djSP; dPOPTOPssrl; |
748a9306 LW |
119 | MAGIC *mg; |
120 | ||
a0d0e21e LW |
121 | if (op->op_private & OPpASSIGN_BACKWARDS) { |
122 | SV *temp; | |
123 | temp = left; left = right; right = temp; | |
124 | } | |
bbce6d69 | 125 | if (tainting && tainted && !SvTAINTED(left)) |
a0d0e21e | 126 | TAINT_NOT; |
54310121 | 127 | SvSetMagicSV(right, left); |
a0d0e21e LW |
128 | SETs(right); |
129 | RETURN; | |
130 | } | |
131 | ||
132 | PP(pp_cond_expr) | |
133 | { | |
4e35701f | 134 | djSP; |
a0d0e21e LW |
135 | if (SvTRUEx(POPs)) |
136 | RETURNOP(cCONDOP->op_true); | |
137 | else | |
138 | RETURNOP(cCONDOP->op_false); | |
139 | } | |
140 | ||
141 | PP(pp_unstack) | |
142 | { | |
143 | I32 oldsave; | |
144 | TAINT_NOT; /* Each statement is presumed innocent */ | |
145 | stack_sp = stack_base + cxstack[cxstack_ix].blk_oldsp; | |
146 | FREETMPS; | |
147 | oldsave = scopestack[scopestack_ix - 1]; | |
148 | LEAVE_SCOPE(oldsave); | |
149 | return NORMAL; | |
150 | } | |
151 | ||
a0d0e21e LW |
152 | PP(pp_concat) |
153 | { | |
4e35701f | 154 | djSP; dATARGET; tryAMAGICbin(concat,opASSIGN); |
748a9306 LW |
155 | { |
156 | dPOPTOPssrl; | |
a0d0e21e LW |
157 | STRLEN len; |
158 | char *s; | |
159 | if (TARG != left) { | |
160 | s = SvPV(left,len); | |
161 | sv_setpvn(TARG,s,len); | |
162 | } | |
c07a80fd | 163 | else if (SvGMAGICAL(TARG)) |
164 | mg_get(TARG); | |
7a4c00b4 | 165 | else if (!SvOK(TARG) && SvTYPE(TARG) <= SVt_PVMG) { |
748a9306 | 166 | sv_setpv(TARG, ""); /* Suppress warning. */ |
7a4c00b4 | 167 | s = SvPV_force(TARG, len); |
4633a7c4 | 168 | } |
a0d0e21e | 169 | s = SvPV(right,len); |
68dc0745 | 170 | if (SvOK(TARG)) |
171 | sv_catpvn(TARG,s,len); | |
172 | else | |
173 | sv_setpvn(TARG,s,len); /* suppress warning */ | |
a0d0e21e LW |
174 | SETTARG; |
175 | RETURN; | |
748a9306 | 176 | } |
a0d0e21e LW |
177 | } |
178 | ||
179 | PP(pp_padsv) | |
180 | { | |
4e35701f | 181 | djSP; dTARGET; |
a0d0e21e | 182 | XPUSHs(TARG); |
4633a7c4 LW |
183 | if (op->op_flags & OPf_MOD) { |
184 | if (op->op_private & OPpLVAL_INTRO) | |
185 | SAVECLEARSV(curpad[op->op_targ]); | |
8ec5e241 NIS |
186 | else if (op->op_private & OPpDEREF) { |
187 | PUTBACK; | |
54310121 | 188 | vivify_ref(curpad[op->op_targ], op->op_private & OPpDEREF); |
8ec5e241 NIS |
189 | SPAGAIN; |
190 | } | |
4633a7c4 | 191 | } |
a0d0e21e LW |
192 | RETURN; |
193 | } | |
194 | ||
195 | PP(pp_readline) | |
196 | { | |
197 | last_in_gv = (GV*)(*stack_sp--); | |
198 | return do_readline(); | |
199 | } | |
200 | ||
201 | PP(pp_eq) | |
202 | { | |
4e35701f | 203 | djSP; tryAMAGICbinSET(eq,0); |
a0d0e21e LW |
204 | { |
205 | dPOPnv; | |
54310121 | 206 | SETs(boolSV(TOPn == value)); |
a0d0e21e LW |
207 | RETURN; |
208 | } | |
209 | } | |
210 | ||
211 | PP(pp_preinc) | |
212 | { | |
4e35701f | 213 | djSP; |
68dc0745 | 214 | if (SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV) |
44a8e56a | 215 | croak(no_modify); |
55497cff | 216 | if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) && |
217 | SvIVX(TOPs) != IV_MAX) | |
218 | { | |
748a9306 | 219 | ++SvIVX(TOPs); |
55497cff | 220 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
748a9306 LW |
221 | } |
222 | else | |
223 | sv_inc(TOPs); | |
a0d0e21e LW |
224 | SvSETMAGIC(TOPs); |
225 | return NORMAL; | |
226 | } | |
227 | ||
228 | PP(pp_or) | |
229 | { | |
4e35701f | 230 | djSP; |
a0d0e21e LW |
231 | if (SvTRUE(TOPs)) |
232 | RETURN; | |
233 | else { | |
234 | --SP; | |
235 | RETURNOP(cLOGOP->op_other); | |
236 | } | |
237 | } | |
238 | ||
239 | PP(pp_add) | |
240 | { | |
4e35701f | 241 | djSP; dATARGET; tryAMAGICbin(add,opASSIGN); |
a0d0e21e | 242 | { |
7a4c00b4 | 243 | dPOPTOPnnrl_ul; |
a0d0e21e LW |
244 | SETn( left + right ); |
245 | RETURN; | |
246 | } | |
247 | } | |
248 | ||
249 | PP(pp_aelemfast) | |
250 | { | |
4e35701f | 251 | djSP; |
a0d0e21e | 252 | AV *av = GvAV((GV*)cSVOP->op_sv); |
be6c24e0 GS |
253 | U32 lval = op->op_flags & OPf_MOD; |
254 | SV** svp = av_fetch(av, op->op_private, lval); | |
255 | SV *sv = (svp ? *svp : &sv_undef); | |
6ff81951 | 256 | EXTEND(SP, 1); |
be6c24e0 GS |
257 | if (!lval && SvGMAGICAL(sv)) /* see note in pp_helem() */ |
258 | sv = sv_mortalcopy(sv); | |
259 | PUSHs(sv); | |
a0d0e21e LW |
260 | RETURN; |
261 | } | |
262 | ||
263 | PP(pp_join) | |
264 | { | |
4e35701f | 265 | djSP; dMARK; dTARGET; |
a0d0e21e LW |
266 | MARK++; |
267 | do_join(TARG, *MARK, MARK, SP); | |
268 | SP = MARK; | |
269 | SETs(TARG); | |
270 | RETURN; | |
271 | } | |
272 | ||
273 | PP(pp_pushre) | |
274 | { | |
4e35701f | 275 | djSP; |
44a8e56a | 276 | #ifdef DEBUGGING |
277 | /* | |
278 | * We ass_u_me that LvTARGOFF() comes first, and that two STRLENs | |
279 | * will be enough to hold an OP*. | |
280 | */ | |
281 | SV* sv = sv_newmortal(); | |
282 | sv_upgrade(sv, SVt_PVLV); | |
283 | LvTYPE(sv) = '/'; | |
284 | Copy(&op, &LvTARGOFF(sv), 1, OP*); | |
285 | XPUSHs(sv); | |
286 | #else | |
a0d0e21e | 287 | XPUSHs((SV*)op); |
44a8e56a | 288 | #endif |
a0d0e21e LW |
289 | RETURN; |
290 | } | |
291 | ||
292 | /* Oversized hot code. */ | |
293 | ||
294 | PP(pp_print) | |
295 | { | |
4e35701f | 296 | djSP; dMARK; dORIGMARK; |
a0d0e21e LW |
297 | GV *gv; |
298 | IO *io; | |
760ac839 | 299 | register PerlIO *fp; |
236988e4 | 300 | MAGIC *mg; |
a0d0e21e LW |
301 | |
302 | if (op->op_flags & OPf_STACKED) | |
303 | gv = (GV*)*++MARK; | |
304 | else | |
305 | gv = defoutgv; | |
3049007d | 306 | if (SvRMAGICAL(gv) && (mg = mg_find((SV*)gv, 'q'))) { |
68dc0745 | 307 | if (MARK == ORIGMARK) { |
a60c0954 NIS |
308 | /* If using default handle then we need to make space to |
309 | * pass object as 1st arg, so move other args up ... | |
310 | */ | |
4352c267 | 311 | MEXTEND(SP, 1); |
68dc0745 | 312 | ++MARK; |
313 | Move(MARK, MARK + 1, (SP - MARK) + 1, SV*); | |
314 | ++SP; | |
315 | } | |
316 | PUSHMARK(MARK - 1); | |
236988e4 | 317 | *MARK = mg->mg_obj; |
68dc0745 | 318 | PUTBACK; |
236988e4 | 319 | ENTER; |
320 | perl_call_method("PRINT", G_SCALAR); | |
321 | LEAVE; | |
322 | SPAGAIN; | |
68dc0745 | 323 | MARK = ORIGMARK + 1; |
324 | *MARK = *SP; | |
325 | SP = MARK; | |
236988e4 | 326 | RETURN; |
327 | } | |
a0d0e21e | 328 | if (!(io = GvIO(gv))) { |
748a9306 LW |
329 | if (dowarn) { |
330 | SV* sv = sv_newmortal(); | |
4f732624 | 331 | gv_fullname3(sv, gv, Nullch); |
748a9306 LW |
332 | warn("Filehandle %s never opened", SvPV(sv,na)); |
333 | } | |
334 | ||
335 | SETERRNO(EBADF,RMS$_IFI); | |
a0d0e21e LW |
336 | goto just_say_no; |
337 | } | |
338 | else if (!(fp = IoOFP(io))) { | |
339 | if (dowarn) { | |
748a9306 | 340 | SV* sv = sv_newmortal(); |
4f732624 | 341 | gv_fullname3(sv, gv, Nullch); |
a0d0e21e | 342 | if (IoIFP(io)) |
748a9306 | 343 | warn("Filehandle %s opened only for input", SvPV(sv,na)); |
a0d0e21e | 344 | else |
748a9306 | 345 | warn("print on closed filehandle %s", SvPV(sv,na)); |
a0d0e21e | 346 | } |
748a9306 | 347 | SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI); |
a0d0e21e LW |
348 | goto just_say_no; |
349 | } | |
350 | else { | |
351 | MARK++; | |
352 | if (ofslen) { | |
353 | while (MARK <= SP) { | |
354 | if (!do_print(*MARK, fp)) | |
355 | break; | |
356 | MARK++; | |
357 | if (MARK <= SP) { | |
760ac839 | 358 | if (PerlIO_write(fp, ofs, ofslen) == 0 || PerlIO_error(fp)) { |
a0d0e21e LW |
359 | MARK--; |
360 | break; | |
361 | } | |
362 | } | |
363 | } | |
364 | } | |
365 | else { | |
366 | while (MARK <= SP) { | |
367 | if (!do_print(*MARK, fp)) | |
368 | break; | |
369 | MARK++; | |
370 | } | |
371 | } | |
372 | if (MARK <= SP) | |
373 | goto just_say_no; | |
374 | else { | |
375 | if (orslen) | |
760ac839 | 376 | if (PerlIO_write(fp, ors, orslen) == 0 || PerlIO_error(fp)) |
a0d0e21e LW |
377 | goto just_say_no; |
378 | ||
379 | if (IoFLAGS(io) & IOf_FLUSH) | |
760ac839 | 380 | if (PerlIO_flush(fp) == EOF) |
a0d0e21e LW |
381 | goto just_say_no; |
382 | } | |
383 | } | |
384 | SP = ORIGMARK; | |
385 | PUSHs(&sv_yes); | |
386 | RETURN; | |
387 | ||
388 | just_say_no: | |
389 | SP = ORIGMARK; | |
390 | PUSHs(&sv_undef); | |
391 | RETURN; | |
392 | } | |
393 | ||
394 | PP(pp_rv2av) | |
395 | { | |
4e35701f | 396 | djSP; dPOPss; |
a0d0e21e LW |
397 | AV *av; |
398 | ||
399 | if (SvROK(sv)) { | |
400 | wasref: | |
401 | av = (AV*)SvRV(sv); | |
402 | if (SvTYPE(av) != SVt_PVAV) | |
403 | DIE("Not an ARRAY reference"); | |
a0d0e21e LW |
404 | if (op->op_flags & OPf_REF) { |
405 | PUSHs((SV*)av); | |
406 | RETURN; | |
407 | } | |
408 | } | |
409 | else { | |
410 | if (SvTYPE(sv) == SVt_PVAV) { | |
411 | av = (AV*)sv; | |
412 | if (op->op_flags & OPf_REF) { | |
413 | PUSHs((SV*)av); | |
414 | RETURN; | |
415 | } | |
416 | } | |
417 | else { | |
67955e0c | 418 | GV *gv; |
419 | ||
a0d0e21e | 420 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 LW |
421 | char *sym; |
422 | ||
a0d0e21e LW |
423 | if (SvGMAGICAL(sv)) { |
424 | mg_get(sv); | |
425 | if (SvROK(sv)) | |
426 | goto wasref; | |
427 | } | |
428 | if (!SvOK(sv)) { | |
429 | if (op->op_flags & OPf_REF || | |
430 | op->op_private & HINT_STRICT_REFS) | |
431 | DIE(no_usym, "an ARRAY"); | |
d83e6520 CS |
432 | if (dowarn) |
433 | warn(warn_uninit); | |
4633a7c4 LW |
434 | if (GIMME == G_ARRAY) |
435 | RETURN; | |
a0d0e21e LW |
436 | RETPUSHUNDEF; |
437 | } | |
748a9306 | 438 | sym = SvPV(sv,na); |
a0d0e21e | 439 | if (op->op_private & HINT_STRICT_REFS) |
748a9306 | 440 | DIE(no_symref, sym, "an ARRAY"); |
67955e0c | 441 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVAV); |
442 | } else { | |
443 | gv = (GV*)sv; | |
a0d0e21e | 444 | } |
67955e0c | 445 | av = GvAVn(gv); |
a0d0e21e | 446 | if (op->op_private & OPpLVAL_INTRO) |
67955e0c | 447 | av = save_ary(gv); |
a0d0e21e LW |
448 | if (op->op_flags & OPf_REF) { |
449 | PUSHs((SV*)av); | |
450 | RETURN; | |
451 | } | |
452 | } | |
453 | } | |
454 | ||
455 | if (GIMME == G_ARRAY) { | |
456 | I32 maxarg = AvFILL(av) + 1; | |
93965878 NIS |
457 | EXTEND(SP, maxarg); |
458 | if (SvRMAGICAL(av)) { | |
459 | U32 i; | |
460 | for (i=0; i < maxarg; i++) { | |
461 | SV **svp = av_fetch(av, i, FALSE); | |
462 | SP[i+1] = (svp) ? *svp : &sv_undef; | |
463 | } | |
464 | } | |
465 | else { | |
466 | Copy(AvARRAY(av), SP+1, maxarg, SV*); | |
467 | } | |
a0d0e21e LW |
468 | SP += maxarg; |
469 | } | |
470 | else { | |
471 | dTARGET; | |
472 | I32 maxarg = AvFILL(av) + 1; | |
473 | PUSHi(maxarg); | |
474 | } | |
475 | RETURN; | |
476 | } | |
477 | ||
478 | PP(pp_rv2hv) | |
479 | { | |
4e35701f | 480 | djSP; dTOPss; |
a0d0e21e LW |
481 | HV *hv; |
482 | ||
483 | if (SvROK(sv)) { | |
484 | wasref: | |
485 | hv = (HV*)SvRV(sv); | |
c750a3ec | 486 | if (SvTYPE(hv) != SVt_PVHV && SvTYPE(hv) != SVt_PVAV) |
a0d0e21e | 487 | DIE("Not a HASH reference"); |
a0d0e21e LW |
488 | if (op->op_flags & OPf_REF) { |
489 | SETs((SV*)hv); | |
490 | RETURN; | |
491 | } | |
492 | } | |
493 | else { | |
c750a3ec | 494 | if (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) { |
a0d0e21e LW |
495 | hv = (HV*)sv; |
496 | if (op->op_flags & OPf_REF) { | |
497 | SETs((SV*)hv); | |
498 | RETURN; | |
499 | } | |
500 | } | |
501 | else { | |
67955e0c | 502 | GV *gv; |
503 | ||
a0d0e21e | 504 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 LW |
505 | char *sym; |
506 | ||
a0d0e21e LW |
507 | if (SvGMAGICAL(sv)) { |
508 | mg_get(sv); | |
509 | if (SvROK(sv)) | |
510 | goto wasref; | |
511 | } | |
512 | if (!SvOK(sv)) { | |
513 | if (op->op_flags & OPf_REF || | |
514 | op->op_private & HINT_STRICT_REFS) | |
515 | DIE(no_usym, "a HASH"); | |
d83e6520 CS |
516 | if (dowarn) |
517 | warn(warn_uninit); | |
4633a7c4 LW |
518 | if (GIMME == G_ARRAY) { |
519 | SP--; | |
520 | RETURN; | |
521 | } | |
a0d0e21e LW |
522 | RETSETUNDEF; |
523 | } | |
748a9306 | 524 | sym = SvPV(sv,na); |
a0d0e21e | 525 | if (op->op_private & HINT_STRICT_REFS) |
748a9306 | 526 | DIE(no_symref, sym, "a HASH"); |
67955e0c | 527 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVHV); |
528 | } else { | |
529 | gv = (GV*)sv; | |
a0d0e21e | 530 | } |
67955e0c | 531 | hv = GvHVn(gv); |
a0d0e21e | 532 | if (op->op_private & OPpLVAL_INTRO) |
67955e0c | 533 | hv = save_hash(gv); |
a0d0e21e LW |
534 | if (op->op_flags & OPf_REF) { |
535 | SETs((SV*)hv); | |
536 | RETURN; | |
537 | } | |
538 | } | |
539 | } | |
540 | ||
541 | if (GIMME == G_ARRAY) { /* array wanted */ | |
542 | *stack_sp = (SV*)hv; | |
543 | return do_kv(ARGS); | |
544 | } | |
545 | else { | |
546 | dTARGET; | |
4b154ab5 GA |
547 | if (SvTYPE(hv) == SVt_PVAV) |
548 | hv = avhv_keys((AV*)hv); | |
46fc3d4c | 549 | if (HvFILL(hv)) |
550 | sv_setpvf(TARG, "%ld/%ld", | |
551 | (long)HvFILL(hv), (long)HvMAX(hv) + 1); | |
a0d0e21e LW |
552 | else |
553 | sv_setiv(TARG, 0); | |
c750a3ec | 554 | |
a0d0e21e LW |
555 | SETTARG; |
556 | RETURN; | |
557 | } | |
558 | } | |
559 | ||
560 | PP(pp_aassign) | |
561 | { | |
4e35701f | 562 | djSP; |
a0d0e21e LW |
563 | SV **lastlelem = stack_sp; |
564 | SV **lastrelem = stack_base + POPMARK; | |
565 | SV **firstrelem = stack_base + POPMARK + 1; | |
566 | SV **firstlelem = lastrelem + 1; | |
567 | ||
568 | register SV **relem; | |
569 | register SV **lelem; | |
570 | ||
571 | register SV *sv; | |
572 | register AV *ary; | |
573 | ||
54310121 | 574 | I32 gimme; |
a0d0e21e LW |
575 | HV *hash; |
576 | I32 i; | |
577 | int magic; | |
578 | ||
579 | delaymagic = DM_DELAY; /* catch simultaneous items */ | |
580 | ||
581 | /* If there's a common identifier on both sides we have to take | |
582 | * special care that assigning the identifier on the left doesn't | |
583 | * clobber a value on the right that's used later in the list. | |
584 | */ | |
585 | if (op->op_private & OPpASSIGN_COMMON) { | |
586 | for (relem = firstrelem; relem <= lastrelem; relem++) { | |
587 | /*SUPPRESS 560*/ | |
a1f49e72 CS |
588 | if (sv = *relem) { |
589 | TAINT_NOT; /* Each item is independent */ | |
a0d0e21e | 590 | *relem = sv_mortalcopy(sv); |
a1f49e72 | 591 | } |
a0d0e21e LW |
592 | } |
593 | } | |
594 | ||
595 | relem = firstrelem; | |
596 | lelem = firstlelem; | |
597 | ary = Null(AV*); | |
598 | hash = Null(HV*); | |
599 | while (lelem <= lastlelem) { | |
bbce6d69 | 600 | TAINT_NOT; /* Each item stands on its own, taintwise. */ |
a0d0e21e LW |
601 | sv = *lelem++; |
602 | switch (SvTYPE(sv)) { | |
603 | case SVt_PVAV: | |
604 | ary = (AV*)sv; | |
748a9306 | 605 | magic = SvMAGICAL(ary) != 0; |
a0d0e21e LW |
606 | |
607 | av_clear(ary); | |
7e42bd57 | 608 | av_extend(ary, lastrelem - relem); |
a0d0e21e LW |
609 | i = 0; |
610 | while (relem <= lastrelem) { /* gobble up all the rest */ | |
5117ca91 | 611 | SV **didstore; |
a0d0e21e LW |
612 | sv = NEWSV(28,0); |
613 | assert(*relem); | |
614 | sv_setsv(sv,*relem); | |
615 | *(relem++) = sv; | |
5117ca91 GS |
616 | didstore = av_store(ary,i++,sv); |
617 | if (magic) { | |
fb73857a | 618 | if (SvSMAGICAL(sv)) |
619 | mg_set(sv); | |
5117ca91 GS |
620 | if (!didstore) |
621 | SvREFCNT_dec(sv); | |
622 | } | |
bbce6d69 | 623 | TAINT_NOT; |
a0d0e21e LW |
624 | } |
625 | break; | |
626 | case SVt_PVHV: { | |
a0d0e21e LW |
627 | SV *tmpstr; |
628 | ||
629 | hash = (HV*)sv; | |
748a9306 | 630 | magic = SvMAGICAL(hash) != 0; |
a0d0e21e LW |
631 | hv_clear(hash); |
632 | ||
633 | while (relem < lastrelem) { /* gobble up all the rest */ | |
5117ca91 | 634 | HE *didstore; |
4633a7c4 | 635 | if (*relem) |
a0d0e21e | 636 | sv = *(relem++); |
4633a7c4 | 637 | else |
a0d0e21e | 638 | sv = &sv_no, relem++; |
a0d0e21e LW |
639 | tmpstr = NEWSV(29,0); |
640 | if (*relem) | |
641 | sv_setsv(tmpstr,*relem); /* value */ | |
642 | *(relem++) = tmpstr; | |
5117ca91 GS |
643 | didstore = hv_store_ent(hash,sv,tmpstr,0); |
644 | if (magic) { | |
fb73857a | 645 | if (SvSMAGICAL(tmpstr)) |
646 | mg_set(tmpstr); | |
5117ca91 GS |
647 | if (!didstore) |
648 | SvREFCNT_dec(tmpstr); | |
649 | } | |
bbce6d69 | 650 | TAINT_NOT; |
8e07c86e | 651 | } |
6a0deba8 GS |
652 | if (relem == lastrelem) { |
653 | if (*relem) { | |
654 | HE *didstore; | |
655 | if (dowarn) { | |
656 | if (relem == firstrelem && | |
657 | SvROK(*relem) && | |
658 | ( SvTYPE(SvRV(*relem)) == SVt_PVAV || | |
659 | SvTYPE(SvRV(*relem)) == SVt_PVHV ) ) | |
660 | warn("Reference found where even-sized list expected"); | |
661 | else | |
662 | warn("Odd number of elements in hash assignment"); | |
663 | } | |
664 | tmpstr = NEWSV(29,0); | |
665 | didstore = hv_store_ent(hash,*relem,tmpstr,0); | |
666 | if (magic) { | |
667 | if (SvSMAGICAL(tmpstr)) | |
668 | mg_set(tmpstr); | |
669 | if (!didstore) | |
670 | SvREFCNT_dec(tmpstr); | |
671 | } | |
672 | TAINT_NOT; | |
673 | } | |
674 | relem++; | |
1930e939 | 675 | } |
a0d0e21e LW |
676 | } |
677 | break; | |
678 | default: | |
679 | if (SvTHINKFIRST(sv)) { | |
680 | if (SvREADONLY(sv) && curcop != &compiling) { | |
d689ffdd | 681 | if (!SvIMMORTAL(sv)) |
a0d0e21e LW |
682 | DIE(no_modify); |
683 | if (relem <= lastrelem) | |
684 | relem++; | |
685 | break; | |
686 | } | |
687 | if (SvROK(sv)) | |
688 | sv_unref(sv); | |
689 | } | |
690 | if (relem <= lastrelem) { | |
691 | sv_setsv(sv, *relem); | |
692 | *(relem++) = sv; | |
693 | } | |
694 | else | |
695 | sv_setsv(sv, &sv_undef); | |
696 | SvSETMAGIC(sv); | |
697 | break; | |
698 | } | |
699 | } | |
700 | if (delaymagic & ~DM_DELAY) { | |
701 | if (delaymagic & DM_UID) { | |
702 | #ifdef HAS_SETRESUID | |
703 | (void)setresuid(uid,euid,(Uid_t)-1); | |
56febc5e AD |
704 | #else |
705 | # ifdef HAS_SETREUID | |
a0d0e21e | 706 | (void)setreuid(uid,euid); |
56febc5e AD |
707 | # else |
708 | # ifdef HAS_SETRUID | |
a0d0e21e LW |
709 | if ((delaymagic & DM_UID) == DM_RUID) { |
710 | (void)setruid(uid); | |
748a9306 | 711 | delaymagic &= ~DM_RUID; |
a0d0e21e | 712 | } |
56febc5e AD |
713 | # endif /* HAS_SETRUID */ |
714 | # ifdef HAS_SETEUID | |
a0d0e21e LW |
715 | if ((delaymagic & DM_UID) == DM_EUID) { |
716 | (void)seteuid(uid); | |
748a9306 | 717 | delaymagic &= ~DM_EUID; |
a0d0e21e | 718 | } |
56febc5e | 719 | # endif /* HAS_SETEUID */ |
a0d0e21e LW |
720 | if (delaymagic & DM_UID) { |
721 | if (uid != euid) | |
722 | DIE("No setreuid available"); | |
76e3520e | 723 | (void)PerlProc_setuid(uid); |
a0d0e21e | 724 | } |
56febc5e AD |
725 | # endif /* HAS_SETREUID */ |
726 | #endif /* HAS_SETRESUID */ | |
76e3520e GS |
727 | uid = (int)PerlProc_getuid(); |
728 | euid = (int)PerlProc_geteuid(); | |
a0d0e21e LW |
729 | } |
730 | if (delaymagic & DM_GID) { | |
731 | #ifdef HAS_SETRESGID | |
732 | (void)setresgid(gid,egid,(Gid_t)-1); | |
56febc5e AD |
733 | #else |
734 | # ifdef HAS_SETREGID | |
a0d0e21e | 735 | (void)setregid(gid,egid); |
56febc5e AD |
736 | # else |
737 | # ifdef HAS_SETRGID | |
a0d0e21e LW |
738 | if ((delaymagic & DM_GID) == DM_RGID) { |
739 | (void)setrgid(gid); | |
748a9306 | 740 | delaymagic &= ~DM_RGID; |
a0d0e21e | 741 | } |
56febc5e AD |
742 | # endif /* HAS_SETRGID */ |
743 | # ifdef HAS_SETEGID | |
a0d0e21e LW |
744 | if ((delaymagic & DM_GID) == DM_EGID) { |
745 | (void)setegid(gid); | |
748a9306 | 746 | delaymagic &= ~DM_EGID; |
a0d0e21e | 747 | } |
56febc5e | 748 | # endif /* HAS_SETEGID */ |
a0d0e21e LW |
749 | if (delaymagic & DM_GID) { |
750 | if (gid != egid) | |
751 | DIE("No setregid available"); | |
76e3520e | 752 | (void)PerlProc_setgid(gid); |
a0d0e21e | 753 | } |
56febc5e AD |
754 | # endif /* HAS_SETREGID */ |
755 | #endif /* HAS_SETRESGID */ | |
76e3520e GS |
756 | gid = (int)PerlProc_getgid(); |
757 | egid = (int)PerlProc_getegid(); | |
a0d0e21e | 758 | } |
4633a7c4 | 759 | tainting |= (uid && (euid != uid || egid != gid)); |
a0d0e21e LW |
760 | } |
761 | delaymagic = 0; | |
54310121 | 762 | |
763 | gimme = GIMME_V; | |
764 | if (gimme == G_VOID) | |
765 | SP = firstrelem - 1; | |
766 | else if (gimme == G_SCALAR) { | |
767 | dTARGET; | |
768 | SP = firstrelem; | |
769 | SETi(lastrelem - firstrelem + 1); | |
770 | } | |
771 | else { | |
a0d0e21e LW |
772 | if (ary || hash) |
773 | SP = lastrelem; | |
774 | else | |
775 | SP = firstrelem + (lastlelem - firstlelem); | |
0c8c7a05 | 776 | lelem = firstlelem + (relem - firstrelem); |
5f05dabc | 777 | while (relem <= SP) |
0c8c7a05 | 778 | *relem++ = (lelem <= lastlelem) ? *lelem++ : &sv_undef; |
a0d0e21e | 779 | } |
54310121 | 780 | RETURN; |
a0d0e21e LW |
781 | } |
782 | ||
783 | PP(pp_match) | |
784 | { | |
4e35701f | 785 | djSP; dTARG; |
a0d0e21e LW |
786 | register PMOP *pm = cPMOP; |
787 | register char *t; | |
788 | register char *s; | |
789 | char *strend; | |
790 | I32 global; | |
791 | I32 safebase; | |
792 | char *truebase; | |
d9f97599 | 793 | register REGEXP *rx = pm->op_pmregexp; |
b3eb6a9b | 794 | bool rxtainted; |
a0d0e21e LW |
795 | I32 gimme = GIMME; |
796 | STRLEN len; | |
748a9306 | 797 | I32 minmatch = 0; |
4633a7c4 | 798 | I32 oldsave = savestack_ix; |
f86702cc | 799 | I32 update_minmatch = 1; |
c277df42 | 800 | SV *screamer; |
a0d0e21e LW |
801 | |
802 | if (op->op_flags & OPf_STACKED) | |
803 | TARG = POPs; | |
804 | else { | |
54b9620d | 805 | TARG = DEFSV; |
a0d0e21e LW |
806 | EXTEND(SP,1); |
807 | } | |
c277df42 | 808 | PUTBACK; /* EVAL blocks need stack_sp. */ |
a0d0e21e LW |
809 | s = SvPV(TARG, len); |
810 | strend = s + len; | |
811 | if (!s) | |
812 | DIE("panic: do_match"); | |
b3eb6a9b GS |
813 | rxtainted = ((pm->op_pmdynflags & PMdf_TAINTED) || |
814 | (tainted && (pm->op_pmflags & PMf_RETAINT))); | |
9212bbba | 815 | TAINT_NOT; |
a0d0e21e | 816 | |
48c036b1 | 817 | if (pm->op_pmdynflags & PMdf_USED) { |
c277df42 | 818 | failure: |
a0d0e21e LW |
819 | if (gimme == G_ARRAY) |
820 | RETURN; | |
821 | RETPUSHNO; | |
822 | } | |
823 | ||
d9f97599 | 824 | if (!rx->prelen && curpm) { |
a0d0e21e | 825 | pm = curpm; |
d9f97599 | 826 | rx = pm->op_pmregexp; |
a0d0e21e | 827 | } |
d9f97599 | 828 | if (rx->minlen > len) goto failure; |
c277df42 | 829 | |
d9f97599 GS |
830 | screamer = ( (SvSCREAM(TARG) && rx->check_substr |
831 | && SvTYPE(rx->check_substr) == SVt_PVBM | |
832 | && SvVALID(rx->check_substr)) | |
c277df42 | 833 | ? TARG : Nullsv); |
a0d0e21e LW |
834 | truebase = t = s; |
835 | if (global = pm->op_pmflags & PMf_GLOBAL) { | |
d9f97599 | 836 | rx->startp[0] = 0; |
a0d0e21e LW |
837 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
838 | MAGIC* mg = mg_find(TARG, 'g'); | |
565764a8 | 839 | if (mg && mg->mg_len >= 0) { |
d9f97599 | 840 | rx->endp[0] = rx->startp[0] = s + mg->mg_len; |
748a9306 | 841 | minmatch = (mg->mg_flags & MGf_MINMATCH); |
f86702cc | 842 | update_minmatch = 0; |
748a9306 | 843 | } |
a0d0e21e LW |
844 | } |
845 | } | |
d9f97599 | 846 | if (!rx->nparens && !global) |
748a9306 | 847 | gimme = G_SCALAR; /* accidental array context? */ |
d9f97599 | 848 | safebase = (((gimme == G_ARRAY) || global || !rx->nparens) |
137443ea | 849 | && !sawampersand); |
c277df42 | 850 | safebase = safebase ? 0 : REXEC_COPY_STR ; |
a0d0e21e LW |
851 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
852 | SAVEINT(multiline); | |
853 | multiline = pm->op_pmflags & PMf_MULTILINE; | |
854 | } | |
855 | ||
856 | play_it_again: | |
d9f97599 GS |
857 | if (global && rx->startp[0]) { |
858 | t = s = rx->endp[0]; | |
859 | if ((s + rx->minlen) > strend) | |
a0d0e21e | 860 | goto nope; |
f86702cc | 861 | if (update_minmatch++) |
d9f97599 | 862 | minmatch = (s == rx->startp[0]); |
a0d0e21e | 863 | } |
d9f97599 GS |
864 | if (rx->check_substr) { |
865 | if (!(rx->reganch & ROPT_NOSCAN)) { /* Floating checkstring. */ | |
c277df42 IZ |
866 | if ( screamer ) { |
867 | I32 p = -1; | |
868 | ||
d9f97599 | 869 | if (screamfirst[BmRARE(rx->check_substr)] < 0) |
a0d0e21e | 870 | goto nope; |
d9f97599 GS |
871 | else if (!(s = screaminstr(TARG, rx->check_substr, |
872 | rx->check_offset_min, 0, &p, 0))) | |
a0d0e21e | 873 | goto nope; |
d9f97599 GS |
874 | else if ((rx->reganch & ROPT_CHECK_ALL) |
875 | && !sawampersand && !SvTAIL(rx->check_substr)) | |
a0d0e21e LW |
876 | goto yup; |
877 | } | |
d9f97599 | 878 | else if (!(s = fbm_instr((unsigned char*)s + rx->check_offset_min, |
c277df42 | 879 | (unsigned char*)strend, |
411d5715 | 880 | rx->check_substr, 0))) |
a0d0e21e | 881 | goto nope; |
d9f97599 | 882 | else if ((rx->reganch & ROPT_CHECK_ALL) && !sawampersand) |
a0d0e21e | 883 | goto yup; |
ee027f1d | 884 | if (s && rx->check_offset_max < s - t) { |
d9f97599 GS |
885 | ++BmUSEFUL(rx->check_substr); |
886 | s -= rx->check_offset_max; | |
a0d0e21e LW |
887 | } |
888 | else | |
889 | s = t; | |
890 | } | |
c277df42 IZ |
891 | /* Now checkstring is fixed, i.e. at fixed offset from the |
892 | beginning of match, and the match is anchored at s. */ | |
893 | else if (!multiline) { /* Anchored near beginning of string. */ | |
894 | I32 slen; | |
d9f97599 GS |
895 | if (*SvPVX(rx->check_substr) != s[rx->check_offset_min] |
896 | || ((slen = SvCUR(rx->check_substr)) > 1 | |
897 | && memNE(SvPVX(rx->check_substr), | |
898 | s + rx->check_offset_min, slen))) | |
bbce6d69 | 899 | goto nope; |
a0d0e21e | 900 | } |
d9f97599 GS |
901 | if (!rx->naughty && --BmUSEFUL(rx->check_substr) < 0 |
902 | && rx->check_substr == rx->float_substr) { | |
903 | SvREFCNT_dec(rx->check_substr); | |
904 | rx->check_substr = Nullsv; /* opt is being useless */ | |
905 | rx->float_substr = Nullsv; | |
a0d0e21e LW |
906 | } |
907 | } | |
15e52e56 | 908 | if (CALLREGEXEC(rx, s, strend, truebase, minmatch, |
c277df42 | 909 | screamer, NULL, safebase)) |
bbce6d69 | 910 | { |
a0d0e21e LW |
911 | curpm = pm; |
912 | if (pm->op_pmflags & PMf_ONCE) | |
48c036b1 | 913 | pm->op_pmdynflags |= PMdf_USED; |
a0d0e21e LW |
914 | goto gotcha; |
915 | } | |
916 | else | |
917 | goto ret_no; | |
918 | /*NOTREACHED*/ | |
919 | ||
920 | gotcha: | |
72311751 GS |
921 | if (rxtainted) |
922 | RX_MATCH_TAINTED_on(rx); | |
923 | TAINT_IF(RX_MATCH_TAINTED(rx)); | |
a0d0e21e LW |
924 | if (gimme == G_ARRAY) { |
925 | I32 iters, i, len; | |
926 | ||
d9f97599 | 927 | iters = rx->nparens; |
a0d0e21e LW |
928 | if (global && !iters) |
929 | i = 1; | |
930 | else | |
931 | i = 0; | |
c277df42 | 932 | SPAGAIN; /* EVAL blocks could move the stack. */ |
a0d0e21e | 933 | EXTEND(SP, iters + i); |
bbce6d69 | 934 | EXTEND_MORTAL(iters + i); |
a0d0e21e LW |
935 | for (i = !i; i <= iters; i++) { |
936 | PUSHs(sv_newmortal()); | |
937 | /*SUPPRESS 560*/ | |
d9f97599 GS |
938 | if ((s = rx->startp[i]) && rx->endp[i] ) { |
939 | len = rx->endp[i] - s; | |
a0d0e21e LW |
940 | sv_setpvn(*SP, s, len); |
941 | } | |
942 | } | |
943 | if (global) { | |
d9f97599 GS |
944 | truebase = rx->subbeg; |
945 | strend = rx->subend; | |
946 | if (rx->startp[0] && rx->startp[0] == rx->endp[0]) | |
947 | ++rx->endp[0]; | |
c277df42 | 948 | PUTBACK; /* EVAL blocks may use stack */ |
a0d0e21e LW |
949 | goto play_it_again; |
950 | } | |
4633a7c4 | 951 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
952 | RETURN; |
953 | } | |
954 | else { | |
955 | if (global) { | |
956 | MAGIC* mg = 0; | |
957 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) | |
958 | mg = mg_find(TARG, 'g'); | |
959 | if (!mg) { | |
960 | sv_magic(TARG, (SV*)0, 'g', Nullch, 0); | |
961 | mg = mg_find(TARG, 'g'); | |
962 | } | |
d9f97599 GS |
963 | if (rx->startp[0]) { |
964 | mg->mg_len = rx->endp[0] - rx->subbeg; | |
965 | if (rx->startp[0] == rx->endp[0]) | |
748a9306 LW |
966 | mg->mg_flags |= MGf_MINMATCH; |
967 | else | |
968 | mg->mg_flags &= ~MGf_MINMATCH; | |
969 | } | |
a0d0e21e | 970 | } |
4633a7c4 | 971 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
972 | RETPUSHYES; |
973 | } | |
974 | ||
c277df42 | 975 | yup: /* Confirmed by check_substr */ |
72311751 GS |
976 | if (rxtainted) |
977 | RX_MATCH_TAINTED_on(rx); | |
978 | TAINT_IF(RX_MATCH_TAINTED(rx)); | |
d9f97599 | 979 | ++BmUSEFUL(rx->check_substr); |
a0d0e21e LW |
980 | curpm = pm; |
981 | if (pm->op_pmflags & PMf_ONCE) | |
48c036b1 | 982 | pm->op_pmdynflags |= PMdf_USED; |
d9f97599 GS |
983 | Safefree(rx->subbase); |
984 | rx->subbase = Nullch; | |
a0d0e21e | 985 | if (global) { |
d9f97599 GS |
986 | rx->subbeg = truebase; |
987 | rx->subend = strend; | |
988 | rx->startp[0] = s; | |
989 | rx->endp[0] = s + SvCUR(rx->check_substr); | |
a0d0e21e LW |
990 | goto gotcha; |
991 | } | |
992 | if (sawampersand) { | |
993 | char *tmps; | |
994 | ||
d9f97599 GS |
995 | tmps = rx->subbase = savepvn(t, strend-t); |
996 | rx->subbeg = tmps; | |
997 | rx->subend = tmps + (strend-t); | |
998 | tmps = rx->startp[0] = tmps + (s - t); | |
999 | rx->endp[0] = tmps + SvCUR(rx->check_substr); | |
a0d0e21e | 1000 | } |
4633a7c4 | 1001 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1002 | RETPUSHYES; |
1003 | ||
1004 | nope: | |
d9f97599 GS |
1005 | if (rx->check_substr) |
1006 | ++BmUSEFUL(rx->check_substr); | |
a0d0e21e LW |
1007 | |
1008 | ret_no: | |
c90c0ff4 | 1009 | if (global && !(pm->op_pmflags & PMf_CONTINUE)) { |
a0d0e21e LW |
1010 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
1011 | MAGIC* mg = mg_find(TARG, 'g'); | |
1012 | if (mg) | |
565764a8 | 1013 | mg->mg_len = -1; |
a0d0e21e LW |
1014 | } |
1015 | } | |
4633a7c4 | 1016 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1017 | if (gimme == G_ARRAY) |
1018 | RETURN; | |
1019 | RETPUSHNO; | |
1020 | } | |
1021 | ||
1022 | OP * | |
8ac85365 | 1023 | do_readline(void) |
a0d0e21e LW |
1024 | { |
1025 | dSP; dTARGETSTACKED; | |
1026 | register SV *sv; | |
1027 | STRLEN tmplen = 0; | |
1028 | STRLEN offset; | |
760ac839 | 1029 | PerlIO *fp; |
a0d0e21e LW |
1030 | register IO *io = GvIO(last_in_gv); |
1031 | register I32 type = op->op_type; | |
54310121 | 1032 | I32 gimme = GIMME_V; |
e79b0511 | 1033 | MAGIC *mg; |
a0d0e21e | 1034 | |
3049007d | 1035 | if (SvRMAGICAL(last_in_gv) && (mg = mg_find((SV*)last_in_gv, 'q'))) { |
e79b0511 | 1036 | PUSHMARK(SP); |
1037 | XPUSHs(mg->mg_obj); | |
1038 | PUTBACK; | |
1039 | ENTER; | |
54310121 | 1040 | perl_call_method("READLINE", gimme); |
e79b0511 | 1041 | LEAVE; |
1042 | SPAGAIN; | |
54310121 | 1043 | if (gimme == G_SCALAR) |
1044 | SvSetMagicSV_nosteal(TARG, TOPs); | |
e79b0511 | 1045 | RETURN; |
1046 | } | |
a0d0e21e LW |
1047 | fp = Nullfp; |
1048 | if (io) { | |
1049 | fp = IoIFP(io); | |
1050 | if (!fp) { | |
1051 | if (IoFLAGS(io) & IOf_ARGV) { | |
1052 | if (IoFLAGS(io) & IOf_START) { | |
1053 | IoFLAGS(io) &= ~IOf_START; | |
1054 | IoLINES(io) = 0; | |
1055 | if (av_len(GvAVn(last_in_gv)) < 0) { | |
a2008d6d GS |
1056 | do_open(last_in_gv,"-",1,FALSE,0,0,Nullfp); |
1057 | sv_setpvn(GvSV(last_in_gv), "-", 1); | |
1058 | SvSETMAGIC(GvSV(last_in_gv)); | |
1059 | fp = IoIFP(io); | |
1060 | goto have_fp; | |
a0d0e21e LW |
1061 | } |
1062 | } | |
1063 | fp = nextargv(last_in_gv); | |
1064 | if (!fp) { /* Note: fp != IoIFP(io) */ | |
1065 | (void)do_close(last_in_gv, FALSE); /* now it does*/ | |
1066 | IoFLAGS(io) |= IOf_START; | |
1067 | } | |
1068 | } | |
1069 | else if (type == OP_GLOB) { | |
1070 | SV *tmpcmd = NEWSV(55, 0); | |
1071 | SV *tmpglob = POPs; | |
1072 | ENTER; | |
1073 | SAVEFREESV(tmpcmd); | |
1074 | #ifdef VMS /* expand the wildcards right here, rather than opening a pipe, */ | |
1075 | /* since spawning off a process is a real performance hit */ | |
1076 | { | |
1077 | #include <descrip.h> | |
1078 | #include <lib$routines.h> | |
1079 | #include <nam.h> | |
1080 | #include <rmsdef.h> | |
1081 | char rslt[NAM$C_MAXRSS+1+sizeof(unsigned short int)] = {'\0','\0'}; | |
1082 | char vmsspec[NAM$C_MAXRSS+1]; | |
1083 | char *rstr = rslt + sizeof(unsigned short int), *begin, *end, *cp; | |
1084 | char tmpfnam[L_tmpnam] = "SYS$SCRATCH:"; | |
1085 | $DESCRIPTOR(dfltdsc,"SYS$DISK:[]*.*;"); | |
760ac839 | 1086 | PerlIO *tmpfp; |
a0d0e21e LW |
1087 | STRLEN i; |
1088 | struct dsc$descriptor_s wilddsc | |
1089 | = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0}; | |
1090 | struct dsc$descriptor_vs rsdsc | |
1091 | = {sizeof rslt, DSC$K_DTYPE_VT, DSC$K_CLASS_VS, rslt}; | |
1092 | unsigned long int cxt = 0, sts = 0, ok = 1, hasdir = 0, hasver = 0, isunix = 0; | |
1093 | ||
1094 | /* We could find out if there's an explicit dev/dir or version | |
1095 | by peeking into lib$find_file's internal context at | |
1096 | ((struct NAM *)((struct FAB *)cxt)->fab$l_nam)->nam$l_fnb | |
1097 | but that's unsupported, so I don't want to do it now and | |
1098 | have it bite someone in the future. */ | |
6ad3d225 | 1099 | strcat(tmpfnam,PerlLIO_tmpnam(NULL)); |
a0d0e21e LW |
1100 | cp = SvPV(tmpglob,i); |
1101 | for (; i; i--) { | |
1102 | if (cp[i] == ';') hasver = 1; | |
1103 | if (cp[i] == '.') { | |
1104 | if (sts) hasver = 1; | |
1105 | else sts = 1; | |
1106 | } | |
1107 | if (cp[i] == '/') { | |
1108 | hasdir = isunix = 1; | |
1109 | break; | |
748a9306 | 1110 | } |
a0d0e21e LW |
1111 | if (cp[i] == ']' || cp[i] == '>' || cp[i] == ':') { |
1112 | hasdir = 1; | |
1113 | break; | |
1114 | } | |
1115 | } | |
760ac839 | 1116 | if ((tmpfp = PerlIO_open(tmpfnam,"w+","fop=dlt")) != NULL) { |
09b7f37c | 1117 | Stat_t st; |
c6ed36e1 | 1118 | if (!PerlLIO_stat(SvPVX(tmpglob),&st) && S_ISDIR(st.st_mode)) |
09b7f37c CB |
1119 | ok = ((wilddsc.dsc$a_pointer = tovmspath(SvPVX(tmpglob),vmsspec)) != NULL); |
1120 | else ok = ((wilddsc.dsc$a_pointer = tovmsspec(SvPVX(tmpglob),vmsspec)) != NULL); | |
a0d0e21e LW |
1121 | if (ok) wilddsc.dsc$w_length = (unsigned short int) strlen(wilddsc.dsc$a_pointer); |
1122 | while (ok && ((sts = lib$find_file(&wilddsc,&rsdsc,&cxt, | |
1123 | &dfltdsc,NULL,NULL,NULL))&1)) { | |
1124 | end = rstr + (unsigned long int) *rslt; | |
1125 | if (!hasver) while (*end != ';') end--; | |
1126 | *(end++) = '\n'; *end = '\0'; | |
1127 | for (cp = rstr; *cp; cp++) *cp = _tolower(*cp); | |
1128 | if (hasdir) { | |
f86702cc | 1129 | if (isunix) trim_unixpath(rstr,SvPVX(tmpglob),1); |
a0d0e21e LW |
1130 | begin = rstr; |
1131 | } | |
1132 | else { | |
1133 | begin = end; | |
1134 | while (*(--begin) != ']' && *begin != '>') ; | |
1135 | ++begin; | |
1136 | } | |
760ac839 | 1137 | ok = (PerlIO_puts(tmpfp,begin) != EOF); |
a0d0e21e LW |
1138 | } |
1139 | if (cxt) (void)lib$find_file_end(&cxt); | |
748a9306 LW |
1140 | if (ok && sts != RMS$_NMF && |
1141 | sts != RMS$_DNF && sts != RMS$_FNF) ok = 0; | |
a0d0e21e | 1142 | if (!ok) { |
c07a80fd | 1143 | if (!(sts & 1)) { |
1144 | SETERRNO((sts == RMS$_SYN ? EINVAL : EVMSERR),sts); | |
1145 | } | |
760ac839 | 1146 | PerlIO_close(tmpfp); |
a0d0e21e LW |
1147 | fp = NULL; |
1148 | } | |
1149 | else { | |
760ac839 | 1150 | PerlIO_rewind(tmpfp); |
a0d0e21e LW |
1151 | IoTYPE(io) = '<'; |
1152 | IoIFP(io) = fp = tmpfp; | |
1e422769 | 1153 | IoFLAGS(io) &= ~IOf_UNTAINT; /* maybe redundant */ |
a0d0e21e LW |
1154 | } |
1155 | } | |
1156 | } | |
1157 | #else /* !VMS */ | |
1158 | #ifdef DOSISH | |
67955e0c | 1159 | #ifdef OS2 |
1160 | sv_setpv(tmpcmd, "for a in "); | |
1161 | sv_catsv(tmpcmd, tmpglob); | |
1162 | sv_catpv(tmpcmd, "; do echo \"$a\\0\\c\"; done |"); | |
1163 | #else | |
39e571d4 LM |
1164 | #ifdef DJGPP |
1165 | sv_setpv(tmpcmd, "/dev/dosglob/"); /* File System Extension */ | |
1166 | sv_catsv(tmpcmd, tmpglob); | |
1167 | #else | |
a0d0e21e LW |
1168 | sv_setpv(tmpcmd, "perlglob "); |
1169 | sv_catsv(tmpcmd, tmpglob); | |
1170 | sv_catpv(tmpcmd, " |"); | |
39e571d4 | 1171 | #endif /* !DJGPP */ |
67955e0c | 1172 | #endif /* !OS2 */ |
1173 | #else /* !DOSISH */ | |
1174 | #if defined(CSH) | |
a0d0e21e LW |
1175 | sv_setpvn(tmpcmd, cshname, cshlen); |
1176 | sv_catpv(tmpcmd, " -cf 'set nonomatch; glob "); | |
1177 | sv_catsv(tmpcmd, tmpglob); | |
16d20bd9 | 1178 | sv_catpv(tmpcmd, "' 2>/dev/null |"); |
a0d0e21e LW |
1179 | #else |
1180 | sv_setpv(tmpcmd, "echo "); | |
1181 | sv_catsv(tmpcmd, tmpglob); | |
1182 | #if 'z' - 'a' == 25 | |
1183 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\012\\012\\012\\012'|"); | |
1184 | #else | |
1185 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\n\\n\\n\\n'|"); | |
1186 | #endif | |
1187 | #endif /* !CSH */ | |
67955e0c | 1188 | #endif /* !DOSISH */ |
c07a80fd | 1189 | (void)do_open(last_in_gv, SvPVX(tmpcmd), SvCUR(tmpcmd), |
1190 | FALSE, 0, 0, Nullfp); | |
a0d0e21e LW |
1191 | fp = IoIFP(io); |
1192 | #endif /* !VMS */ | |
1193 | LEAVE; | |
1194 | } | |
1195 | } | |
1196 | else if (type == OP_GLOB) | |
1197 | SP--; | |
1198 | } | |
1199 | if (!fp) { | |
4633a7c4 | 1200 | if (dowarn && io && !(IoFLAGS(io) & IOf_START)) |
a0d0e21e | 1201 | warn("Read on closed filehandle <%s>", GvENAME(last_in_gv)); |
54310121 | 1202 | if (gimme == G_SCALAR) { |
a0d0e21e LW |
1203 | (void)SvOK_off(TARG); |
1204 | PUSHTARG; | |
1205 | } | |
1206 | RETURN; | |
1207 | } | |
a2008d6d | 1208 | have_fp: |
54310121 | 1209 | if (gimme == G_SCALAR) { |
a0d0e21e | 1210 | sv = TARG; |
9607fc9c | 1211 | if (SvROK(sv)) |
1212 | sv_unref(sv); | |
a0d0e21e LW |
1213 | (void)SvUPGRADE(sv, SVt_PV); |
1214 | tmplen = SvLEN(sv); /* remember if already alloced */ | |
1215 | if (!tmplen) | |
1216 | Sv_Grow(sv, 80); /* try short-buffering it */ | |
1217 | if (type == OP_RCATLINE) | |
1218 | offset = SvCUR(sv); | |
1219 | else | |
1220 | offset = 0; | |
1221 | } | |
54310121 | 1222 | else { |
1223 | sv = sv_2mortal(NEWSV(57, 80)); | |
1224 | offset = 0; | |
1225 | } | |
a0d0e21e LW |
1226 | for (;;) { |
1227 | if (!sv_gets(sv, fp, offset)) { | |
760ac839 | 1228 | PerlIO_clearerr(fp); |
a0d0e21e LW |
1229 | if (IoFLAGS(io) & IOf_ARGV) { |
1230 | fp = nextargv(last_in_gv); | |
1231 | if (fp) | |
1232 | continue; | |
1233 | (void)do_close(last_in_gv, FALSE); | |
1234 | IoFLAGS(io) |= IOf_START; | |
1235 | } | |
1236 | else if (type == OP_GLOB) { | |
5cd24f17 | 1237 | if (do_close(last_in_gv, FALSE) & ~0xFF) |
1238 | warn("internal error: glob failed"); | |
a0d0e21e | 1239 | } |
54310121 | 1240 | if (gimme == G_SCALAR) { |
a0d0e21e LW |
1241 | (void)SvOK_off(TARG); |
1242 | PUSHTARG; | |
1243 | } | |
1244 | RETURN; | |
1245 | } | |
bbce6d69 | 1246 | /* This should not be marked tainted if the fp is marked clean */ |
1247 | if (!(IoFLAGS(io) & IOf_UNTAINT)) { | |
1248 | TAINT; | |
1249 | SvTAINTED_on(sv); | |
1250 | } | |
a0d0e21e | 1251 | IoLINES(io)++; |
71be2cbc | 1252 | SvSETMAGIC(sv); |
a0d0e21e | 1253 | XPUSHs(sv); |
a0d0e21e LW |
1254 | if (type == OP_GLOB) { |
1255 | char *tmps; | |
1256 | ||
c07a80fd | 1257 | if (SvCUR(sv) > 0 && SvCUR(rs) > 0) { |
1258 | tmps = SvEND(sv) - 1; | |
1259 | if (*tmps == *SvPVX(rs)) { | |
1260 | *tmps = '\0'; | |
1261 | SvCUR(sv)--; | |
1262 | } | |
1263 | } | |
a0d0e21e LW |
1264 | for (tmps = SvPVX(sv); *tmps; tmps++) |
1265 | if (!isALPHA(*tmps) && !isDIGIT(*tmps) && | |
1266 | strchr("$&*(){}[]'\";\\|?<>~`", *tmps)) | |
1267 | break; | |
76e3520e | 1268 | if (*tmps && PerlLIO_stat(SvPVX(sv), &statbuf) < 0) { |
a0d0e21e LW |
1269 | (void)POPs; /* Unmatched wildcard? Chuck it... */ |
1270 | continue; | |
1271 | } | |
1272 | } | |
54310121 | 1273 | if (gimme == G_ARRAY) { |
a0d0e21e LW |
1274 | if (SvLEN(sv) - SvCUR(sv) > 20) { |
1275 | SvLEN_set(sv, SvCUR(sv)+1); | |
1276 | Renew(SvPVX(sv), SvLEN(sv), char); | |
1277 | } | |
1278 | sv = sv_2mortal(NEWSV(58, 80)); | |
1279 | continue; | |
1280 | } | |
54310121 | 1281 | else if (gimme == G_SCALAR && !tmplen && SvLEN(sv) - SvCUR(sv) > 80) { |
a0d0e21e LW |
1282 | /* try to reclaim a bit of scalar space (only on 1st alloc) */ |
1283 | if (SvCUR(sv) < 60) | |
1284 | SvLEN_set(sv, 80); | |
1285 | else | |
1286 | SvLEN_set(sv, SvCUR(sv)+40); /* allow some slop */ | |
1287 | Renew(SvPVX(sv), SvLEN(sv), char); | |
1288 | } | |
1289 | RETURN; | |
1290 | } | |
1291 | } | |
1292 | ||
1293 | PP(pp_enter) | |
1294 | { | |
4e35701f | 1295 | djSP; |
c09156bb | 1296 | register PERL_CONTEXT *cx; |
54310121 | 1297 | I32 gimme = OP_GIMME(op, -1); |
a0d0e21e | 1298 | |
54310121 | 1299 | if (gimme == -1) { |
1300 | if (cxstack_ix >= 0) | |
1301 | gimme = cxstack[cxstack_ix].blk_gimme; | |
1302 | else | |
1303 | gimme = G_SCALAR; | |
1304 | } | |
a0d0e21e LW |
1305 | |
1306 | ENTER; | |
1307 | ||
1308 | SAVETMPS; | |
924508f0 | 1309 | PUSHBLOCK(cx, CXt_BLOCK, SP); |
a0d0e21e LW |
1310 | |
1311 | RETURN; | |
1312 | } | |
1313 | ||
1314 | PP(pp_helem) | |
1315 | { | |
4e35701f | 1316 | djSP; |
760ac839 | 1317 | HE* he; |
ae77835f | 1318 | SV **svp; |
a0d0e21e | 1319 | SV *keysv = POPs; |
a0d0e21e | 1320 | HV *hv = (HV*)POPs; |
68dc0745 | 1321 | U32 lval = op->op_flags & OPf_MOD; |
1322 | U32 defer = op->op_private & OPpLVAL_DEFER; | |
be6c24e0 | 1323 | SV *sv; |
a0d0e21e | 1324 | |
ae77835f MB |
1325 | if (SvTYPE(hv) == SVt_PVHV) { |
1326 | he = hv_fetch_ent(hv, keysv, lval && !defer, 0); | |
97fcbf96 | 1327 | svp = he ? &HeVAL(he) : 0; |
ae77835f MB |
1328 | } |
1329 | else if (SvTYPE(hv) == SVt_PVAV) { | |
97fcbf96 | 1330 | svp = avhv_fetch_ent((AV*)hv, keysv, lval && !defer, 0); |
ae77835f | 1331 | } |
c750a3ec | 1332 | else { |
a0d0e21e | 1333 | RETPUSHUNDEF; |
c750a3ec | 1334 | } |
a0d0e21e | 1335 | if (lval) { |
97fcbf96 | 1336 | if (!svp || *svp == &sv_undef) { |
68dc0745 | 1337 | SV* lv; |
1338 | SV* key2; | |
1339 | if (!defer) | |
1340 | DIE(no_helem, SvPV(keysv, na)); | |
1341 | lv = sv_newmortal(); | |
1342 | sv_upgrade(lv, SVt_PVLV); | |
1343 | LvTYPE(lv) = 'y'; | |
1344 | sv_magic(lv, key2 = newSVsv(keysv), 'y', Nullch, 0); | |
1345 | SvREFCNT_dec(key2); /* sv_magic() increments refcount */ | |
1346 | LvTARG(lv) = SvREFCNT_inc(hv); | |
1347 | LvTARGLEN(lv) = 1; | |
1348 | PUSHs(lv); | |
1349 | RETURN; | |
1350 | } | |
5f05dabc | 1351 | if (op->op_private & OPpLVAL_INTRO) { |
ae77835f MB |
1352 | if (HvNAME(hv) && isGV(*svp)) |
1353 | save_gp((GV*)*svp, !(op->op_flags & OPf_SPECIAL)); | |
5f05dabc | 1354 | else |
161b7d16 | 1355 | save_helem(hv, keysv, svp); |
5f05dabc | 1356 | } |
1357 | else if (op->op_private & OPpDEREF) | |
ae77835f | 1358 | vivify_ref(*svp, op->op_private & OPpDEREF); |
a0d0e21e | 1359 | } |
be6c24e0 GS |
1360 | sv = (svp ? *svp : &sv_undef); |
1361 | /* This makes C<local $tied{foo} = $tied{foo}> possible. | |
1362 | * Pushing the magical RHS on to the stack is useless, since | |
1363 | * that magic is soon destined to be misled by the local(), | |
1364 | * and thus the later pp_sassign() will fail to mg_get() the | |
1365 | * old value. This should also cure problems with delayed | |
1366 | * mg_get()s. GSAR 98-07-03 */ | |
1367 | if (!lval && SvGMAGICAL(sv)) | |
1368 | sv = sv_mortalcopy(sv); | |
1369 | PUSHs(sv); | |
a0d0e21e LW |
1370 | RETURN; |
1371 | } | |
1372 | ||
1373 | PP(pp_leave) | |
1374 | { | |
4e35701f | 1375 | djSP; |
c09156bb | 1376 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
1377 | register SV **mark; |
1378 | SV **newsp; | |
1379 | PMOP *newpm; | |
1380 | I32 gimme; | |
1381 | ||
1382 | if (op->op_flags & OPf_SPECIAL) { | |
1383 | cx = &cxstack[cxstack_ix]; | |
1384 | cx->blk_oldpm = curpm; /* fake block should preserve $1 et al */ | |
1385 | } | |
1386 | ||
1387 | POPBLOCK(cx,newpm); | |
1388 | ||
54310121 | 1389 | gimme = OP_GIMME(op, -1); |
1390 | if (gimme == -1) { | |
1391 | if (cxstack_ix >= 0) | |
1392 | gimme = cxstack[cxstack_ix].blk_gimme; | |
1393 | else | |
1394 | gimme = G_SCALAR; | |
1395 | } | |
a0d0e21e | 1396 | |
a1f49e72 | 1397 | TAINT_NOT; |
54310121 | 1398 | if (gimme == G_VOID) |
1399 | SP = newsp; | |
1400 | else if (gimme == G_SCALAR) { | |
1401 | MARK = newsp + 1; | |
1402 | if (MARK <= SP) | |
1403 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) | |
1404 | *MARK = TOPs; | |
1405 | else | |
1406 | *MARK = sv_mortalcopy(TOPs); | |
a0d0e21e | 1407 | else { |
54310121 | 1408 | MEXTEND(mark,0); |
1409 | *MARK = &sv_undef; | |
a0d0e21e | 1410 | } |
54310121 | 1411 | SP = MARK; |
a0d0e21e | 1412 | } |
54310121 | 1413 | else if (gimme == G_ARRAY) { |
a1f49e72 CS |
1414 | /* in case LEAVE wipes old return values */ |
1415 | for (mark = newsp + 1; mark <= SP; mark++) { | |
1416 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) { | |
a0d0e21e | 1417 | *mark = sv_mortalcopy(*mark); |
a1f49e72 CS |
1418 | TAINT_NOT; /* Each item is independent */ |
1419 | } | |
1420 | } | |
a0d0e21e LW |
1421 | } |
1422 | curpm = newpm; /* Don't pop $1 et al till now */ | |
1423 | ||
1424 | LEAVE; | |
1425 | ||
1426 | RETURN; | |
1427 | } | |
1428 | ||
1429 | PP(pp_iter) | |
1430 | { | |
4e35701f | 1431 | djSP; |
c09156bb | 1432 | register PERL_CONTEXT *cx; |
5f05dabc | 1433 | SV* sv; |
4633a7c4 | 1434 | AV* av; |
a0d0e21e | 1435 | |
924508f0 | 1436 | EXTEND(SP, 1); |
a0d0e21e LW |
1437 | cx = &cxstack[cxstack_ix]; |
1438 | if (cx->cx_type != CXt_LOOP) | |
1439 | DIE("panic: pp_iter"); | |
1440 | ||
4633a7c4 | 1441 | av = cx->blk_loop.iterary; |
89ea2908 GA |
1442 | if (SvTYPE(av) != SVt_PVAV) { |
1443 | /* iterate ($min .. $max) */ | |
1444 | if (cx->blk_loop.iterlval) { | |
1445 | /* string increment */ | |
1446 | register SV* cur = cx->blk_loop.iterlval; | |
1447 | STRLEN maxlen; | |
1448 | char *max = SvPV((SV*)av, maxlen); | |
1449 | if (!SvNIOK(cur) && SvCUR(cur) <= maxlen) { | |
7f61b687 IZ |
1450 | /* we need a fresh SV every time so that loop body sees a |
1451 | * completely new SV for closures/references to work as they | |
1452 | * used to */ | |
1453 | SvREFCNT_dec(*cx->blk_loop.itervar); | |
1454 | *cx->blk_loop.itervar = newSVsv(cur); | |
89ea2908 GA |
1455 | if (strEQ(SvPVX(cur), max)) |
1456 | sv_setiv(cur, 0); /* terminate next time */ | |
1457 | else | |
1458 | sv_inc(cur); | |
1459 | RETPUSHYES; | |
1460 | } | |
1461 | RETPUSHNO; | |
1462 | } | |
1463 | /* integer increment */ | |
1464 | if (cx->blk_loop.iterix > cx->blk_loop.itermax) | |
1465 | RETPUSHNO; | |
7f61b687 IZ |
1466 | |
1467 | /* we need a fresh SV every time so that loop body sees a | |
1468 | * completely new SV for closures/references to work as they | |
1469 | * used to */ | |
1470 | SvREFCNT_dec(*cx->blk_loop.itervar); | |
1471 | *cx->blk_loop.itervar = newSViv(cx->blk_loop.iterix++); | |
89ea2908 GA |
1472 | RETPUSHYES; |
1473 | } | |
1474 | ||
1475 | /* iterate array */ | |
71be2cbc | 1476 | if (cx->blk_loop.iterix >= (av == curstack ? cx->blk_oldsp : AvFILL(av))) |
4633a7c4 | 1477 | RETPUSHNO; |
a0d0e21e | 1478 | |
7a4c00b4 | 1479 | SvREFCNT_dec(*cx->blk_loop.itervar); |
a0d0e21e | 1480 | |
93965878 NIS |
1481 | if (sv = (SvMAGICAL(av)) |
1482 | ? *av_fetch(av, ++cx->blk_loop.iterix, FALSE) | |
1483 | : AvARRAY(av)[++cx->blk_loop.iterix]) | |
a0d0e21e | 1484 | SvTEMP_off(sv); |
a0d0e21e | 1485 | else |
5f05dabc | 1486 | sv = &sv_undef; |
1487 | if (av != curstack && SvIMMORTAL(sv)) { | |
1488 | SV *lv = cx->blk_loop.iterlval; | |
71be2cbc | 1489 | if (lv && SvREFCNT(lv) > 1) { |
1490 | SvREFCNT_dec(lv); | |
1491 | lv = Nullsv; | |
1492 | } | |
5f05dabc | 1493 | if (lv) |
1494 | SvREFCNT_dec(LvTARG(lv)); | |
1495 | else { | |
68dc0745 | 1496 | lv = cx->blk_loop.iterlval = NEWSV(26, 0); |
5f05dabc | 1497 | sv_upgrade(lv, SVt_PVLV); |
5f05dabc | 1498 | LvTYPE(lv) = 'y'; |
68dc0745 | 1499 | sv_magic(lv, Nullsv, 'y', Nullch, 0); |
5f05dabc | 1500 | } |
1501 | LvTARG(lv) = SvREFCNT_inc(av); | |
1502 | LvTARGOFF(lv) = cx->blk_loop.iterix; | |
8ac85365 | 1503 | LvTARGLEN(lv) = (UV) -1; |
5f05dabc | 1504 | sv = (SV*)lv; |
1505 | } | |
a0d0e21e | 1506 | |
7a4c00b4 | 1507 | *cx->blk_loop.itervar = SvREFCNT_inc(sv); |
a0d0e21e LW |
1508 | RETPUSHYES; |
1509 | } | |
1510 | ||
1511 | PP(pp_subst) | |
1512 | { | |
4e35701f | 1513 | djSP; dTARG; |
a0d0e21e LW |
1514 | register PMOP *pm = cPMOP; |
1515 | PMOP *rpm = pm; | |
1516 | register SV *dstr; | |
1517 | register char *s; | |
1518 | char *strend; | |
1519 | register char *m; | |
1520 | char *c; | |
1521 | register char *d; | |
1522 | STRLEN clen; | |
1523 | I32 iters = 0; | |
1524 | I32 maxiters; | |
1525 | register I32 i; | |
1526 | bool once; | |
71be2cbc | 1527 | bool rxtainted; |
a0d0e21e LW |
1528 | char *orig; |
1529 | I32 safebase; | |
d9f97599 | 1530 | register REGEXP *rx = pm->op_pmregexp; |
a0d0e21e LW |
1531 | STRLEN len; |
1532 | int force_on_match = 0; | |
4633a7c4 | 1533 | I32 oldsave = savestack_ix; |
c277df42 IZ |
1534 | I32 update_minmatch = 1; |
1535 | SV *screamer; | |
a0d0e21e | 1536 | |
5cd24f17 | 1537 | /* known replacement string? */ |
1538 | dstr = (pm->op_pmflags & PMf_CONST) ? POPs : Nullsv; | |
a0d0e21e LW |
1539 | if (op->op_flags & OPf_STACKED) |
1540 | TARG = POPs; | |
1541 | else { | |
54b9620d | 1542 | TARG = DEFSV; |
a0d0e21e | 1543 | EXTEND(SP,1); |
8ec5e241 | 1544 | } |
68dc0745 | 1545 | if (SvREADONLY(TARG) |
1546 | || (SvTYPE(TARG) > SVt_PVLV | |
1547 | && !(SvTYPE(TARG) == SVt_PVGV && SvFAKE(TARG)))) | |
1548 | croak(no_modify); | |
8ec5e241 NIS |
1549 | PUTBACK; |
1550 | ||
a0d0e21e | 1551 | s = SvPV(TARG, len); |
68dc0745 | 1552 | if (!SvPOKp(TARG) || SvTYPE(TARG) == SVt_PVGV) |
a0d0e21e | 1553 | force_on_match = 1; |
b3eb6a9b GS |
1554 | rxtainted = ((pm->op_pmdynflags & PMdf_TAINTED) || |
1555 | (tainted && (pm->op_pmflags & PMf_RETAINT))); | |
1556 | if (tainted) | |
1557 | rxtainted |= 2; | |
9212bbba | 1558 | TAINT_NOT; |
a0d0e21e LW |
1559 | |
1560 | force_it: | |
1561 | if (!pm || !s) | |
1562 | DIE("panic: do_subst"); | |
1563 | ||
1564 | strend = s + len; | |
1565 | maxiters = (strend - s) + 10; | |
1566 | ||
d9f97599 | 1567 | if (!rx->prelen && curpm) { |
a0d0e21e | 1568 | pm = curpm; |
d9f97599 | 1569 | rx = pm->op_pmregexp; |
a0d0e21e | 1570 | } |
d9f97599 GS |
1571 | screamer = ( (SvSCREAM(TARG) && rx->check_substr |
1572 | && SvTYPE(rx->check_substr) == SVt_PVBM | |
1573 | && SvVALID(rx->check_substr)) | |
c277df42 | 1574 | ? TARG : Nullsv); |
d9f97599 | 1575 | safebase = (!rx->nparens && !sawampersand) ? 0 : REXEC_COPY_STR; |
a0d0e21e LW |
1576 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
1577 | SAVEINT(multiline); | |
1578 | multiline = pm->op_pmflags & PMf_MULTILINE; | |
1579 | } | |
1580 | orig = m = s; | |
d9f97599 GS |
1581 | if (rx->check_substr) { |
1582 | if (!(rx->reganch & ROPT_NOSCAN)) { /* It floats. */ | |
c277df42 IZ |
1583 | if (screamer) { |
1584 | I32 p = -1; | |
1585 | ||
d9f97599 | 1586 | if (screamfirst[BmRARE(rx->check_substr)] < 0) |
a0d0e21e | 1587 | goto nope; |
d9f97599 | 1588 | else if (!(s = screaminstr(TARG, rx->check_substr, rx->check_offset_min, 0, &p, 0))) |
a0d0e21e LW |
1589 | goto nope; |
1590 | } | |
d9f97599 | 1591 | else if (!(s = fbm_instr((unsigned char*)s + rx->check_offset_min, |
c277df42 | 1592 | (unsigned char*)strend, |
411d5715 | 1593 | rx->check_substr, 0))) |
a0d0e21e | 1594 | goto nope; |
d9f97599 GS |
1595 | if (s && rx->check_offset_max < s - m) { |
1596 | ++BmUSEFUL(rx->check_substr); | |
1597 | s -= rx->check_offset_max; | |
a0d0e21e LW |
1598 | } |
1599 | else | |
1600 | s = m; | |
1601 | } | |
c277df42 IZ |
1602 | /* Now checkstring is fixed, i.e. at fixed offset from the |
1603 | beginning of match, and the match is anchored at s. */ | |
1604 | else if (!multiline) { /* Anchored at beginning of string. */ | |
1605 | I32 slen; | |
d9f97599 GS |
1606 | if (*SvPVX(rx->check_substr) != s[rx->check_offset_min] |
1607 | || ((slen = SvCUR(rx->check_substr)) > 1 | |
1608 | && memNE(SvPVX(rx->check_substr), | |
1609 | s + rx->check_offset_min, slen))) | |
bbce6d69 | 1610 | goto nope; |
a0d0e21e | 1611 | } |
d9f97599 GS |
1612 | if (!rx->naughty && --BmUSEFUL(rx->check_substr) < 0 |
1613 | && rx->check_substr == rx->float_substr) { | |
1614 | SvREFCNT_dec(rx->check_substr); | |
1615 | rx->check_substr = Nullsv; /* opt is being useless */ | |
1616 | rx->float_substr = Nullsv; | |
a0d0e21e LW |
1617 | } |
1618 | } | |
71be2cbc | 1619 | |
1620 | /* only replace once? */ | |
a0d0e21e | 1621 | once = !(rpm->op_pmflags & PMf_GLOBAL); |
71be2cbc | 1622 | |
1623 | /* known replacement string? */ | |
5cd24f17 | 1624 | c = dstr ? SvPV(dstr, clen) : Nullch; |
71be2cbc | 1625 | |
1626 | /* can do inplace substitution? */ | |
d9f97599 GS |
1627 | if (c && clen <= rx->minlen && (once || !(safebase & REXEC_COPY_STR)) |
1628 | && !(rx->reganch & ROPT_LOOKBEHIND_SEEN)) { | |
15e52e56 | 1629 | if (!CALLREGEXEC(rx, s, strend, orig, 0, screamer, NULL, safebase)) { |
8ec5e241 | 1630 | SPAGAIN; |
71be2cbc | 1631 | PUSHs(&sv_no); |
1632 | LEAVE_SCOPE(oldsave); | |
1633 | RETURN; | |
1634 | } | |
1635 | if (force_on_match) { | |
1636 | force_on_match = 0; | |
1637 | s = SvPV_force(TARG, len); | |
1638 | goto force_it; | |
1639 | } | |
71be2cbc | 1640 | d = s; |
1641 | curpm = pm; | |
1642 | SvSCREAM_off(TARG); /* disable possible screamer */ | |
1643 | if (once) { | |
48c036b1 | 1644 | rxtainted |= RX_MATCH_TAINTED(rx); |
d9f97599 GS |
1645 | if (rx->subbase) { |
1646 | m = orig + (rx->startp[0] - rx->subbase); | |
1647 | d = orig + (rx->endp[0] - rx->subbase); | |
c277df42 | 1648 | } else { |
d9f97599 GS |
1649 | m = rx->startp[0]; |
1650 | d = rx->endp[0]; | |
c277df42 | 1651 | } |
71be2cbc | 1652 | s = orig; |
1653 | if (m - s > strend - d) { /* faster to shorten from end */ | |
1654 | if (clen) { | |
1655 | Copy(c, m, clen, char); | |
1656 | m += clen; | |
a0d0e21e | 1657 | } |
71be2cbc | 1658 | i = strend - d; |
1659 | if (i > 0) { | |
1660 | Move(d, m, i, char); | |
1661 | m += i; | |
a0d0e21e | 1662 | } |
71be2cbc | 1663 | *m = '\0'; |
1664 | SvCUR_set(TARG, m - s); | |
1665 | } | |
1666 | /*SUPPRESS 560*/ | |
1667 | else if (i = m - s) { /* faster from front */ | |
1668 | d -= clen; | |
1669 | m = d; | |
1670 | sv_chop(TARG, d-i); | |
1671 | s += i; | |
1672 | while (i--) | |
1673 | *--d = *--s; | |
1674 | if (clen) | |
1675 | Copy(c, m, clen, char); | |
1676 | } | |
1677 | else if (clen) { | |
1678 | d -= clen; | |
1679 | sv_chop(TARG, d); | |
1680 | Copy(c, d, clen, char); | |
1681 | } | |
1682 | else { | |
1683 | sv_chop(TARG, d); | |
1684 | } | |
48c036b1 | 1685 | TAINT_IF(rxtainted & 1); |
8ec5e241 | 1686 | SPAGAIN; |
71be2cbc | 1687 | PUSHs(&sv_yes); |
1688 | } | |
1689 | else { | |
71be2cbc | 1690 | do { |
1691 | if (iters++ > maxiters) | |
1692 | DIE("Substitution loop"); | |
d9f97599 GS |
1693 | rxtainted |= RX_MATCH_TAINTED(rx); |
1694 | m = rx->startp[0]; | |
71be2cbc | 1695 | /*SUPPRESS 560*/ |
1696 | if (i = m - s) { | |
1697 | if (s != d) | |
1698 | Move(s, d, i, char); | |
1699 | d += i; | |
a0d0e21e | 1700 | } |
71be2cbc | 1701 | if (clen) { |
1702 | Copy(c, d, clen, char); | |
1703 | d += clen; | |
1704 | } | |
d9f97599 | 1705 | s = rx->endp[0]; |
15e52e56 | 1706 | } while (CALLREGEXEC(rx, s, strend, orig, s == m, |
c277df42 | 1707 | Nullsv, NULL, 0)); /* don't match same null twice */ |
71be2cbc | 1708 | if (s != d) { |
1709 | i = strend - s; | |
1710 | SvCUR_set(TARG, d - SvPVX(TARG) + i); | |
1711 | Move(s, d, i+1, char); /* include the NUL */ | |
a0d0e21e | 1712 | } |
48c036b1 | 1713 | TAINT_IF(rxtainted & 1); |
8ec5e241 | 1714 | SPAGAIN; |
71be2cbc | 1715 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
a0d0e21e | 1716 | } |
71be2cbc | 1717 | (void)SvPOK_only(TARG); |
48c036b1 | 1718 | TAINT_IF(rxtainted); |
8ec5e241 NIS |
1719 | if (SvSMAGICAL(TARG)) { |
1720 | PUTBACK; | |
1721 | mg_set(TARG); | |
1722 | SPAGAIN; | |
1723 | } | |
9212bbba | 1724 | SvTAINT(TARG); |
71be2cbc | 1725 | LEAVE_SCOPE(oldsave); |
1726 | RETURN; | |
a0d0e21e | 1727 | } |
71be2cbc | 1728 | |
15e52e56 | 1729 | if (CALLREGEXEC(rx, s, strend, orig, 0, screamer, NULL, safebase)) { |
a0d0e21e LW |
1730 | if (force_on_match) { |
1731 | force_on_match = 0; | |
1732 | s = SvPV_force(TARG, len); | |
1733 | goto force_it; | |
1734 | } | |
48c036b1 | 1735 | rxtainted |= RX_MATCH_TAINTED(rx); |
8ec5e241 | 1736 | dstr = NEWSV(25, len); |
a0d0e21e LW |
1737 | sv_setpvn(dstr, m, s-m); |
1738 | curpm = pm; | |
1739 | if (!c) { | |
c09156bb | 1740 | register PERL_CONTEXT *cx; |
8ec5e241 | 1741 | SPAGAIN; |
a0d0e21e LW |
1742 | PUSHSUBST(cx); |
1743 | RETURNOP(cPMOP->op_pmreplroot); | |
1744 | } | |
1745 | do { | |
1746 | if (iters++ > maxiters) | |
1747 | DIE("Substitution loop"); | |
d9f97599 GS |
1748 | rxtainted |= RX_MATCH_TAINTED(rx); |
1749 | if (rx->subbase && rx->subbase != orig) { | |
a0d0e21e LW |
1750 | m = s; |
1751 | s = orig; | |
d9f97599 | 1752 | orig = rx->subbase; |
a0d0e21e LW |
1753 | s = orig + (m - s); |
1754 | strend = s + (strend - m); | |
1755 | } | |
d9f97599 | 1756 | m = rx->startp[0]; |
a0d0e21e | 1757 | sv_catpvn(dstr, s, m-s); |
d9f97599 | 1758 | s = rx->endp[0]; |
a0d0e21e LW |
1759 | if (clen) |
1760 | sv_catpvn(dstr, c, clen); | |
1761 | if (once) | |
1762 | break; | |
15e52e56 | 1763 | } while (CALLREGEXEC(rx, s, strend, orig, s == m, Nullsv, NULL, safebase)); |
a0d0e21e | 1764 | sv_catpvn(dstr, s, strend - s); |
748a9306 | 1765 | |
4633a7c4 | 1766 | (void)SvOOK_off(TARG); |
cb0b1708 | 1767 | Safefree(SvPVX(TARG)); |
748a9306 LW |
1768 | SvPVX(TARG) = SvPVX(dstr); |
1769 | SvCUR_set(TARG, SvCUR(dstr)); | |
1770 | SvLEN_set(TARG, SvLEN(dstr)); | |
1771 | SvPVX(dstr) = 0; | |
1772 | sv_free(dstr); | |
1773 | ||
48c036b1 | 1774 | TAINT_IF(rxtainted & 1); |
f878fbec | 1775 | SPAGAIN; |
48c036b1 GS |
1776 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
1777 | ||
a0d0e21e | 1778 | (void)SvPOK_only(TARG); |
48c036b1 | 1779 | TAINT_IF(rxtainted); |
a0d0e21e | 1780 | SvSETMAGIC(TARG); |
9212bbba | 1781 | SvTAINT(TARG); |
4633a7c4 | 1782 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1783 | RETURN; |
1784 | } | |
5cd24f17 | 1785 | goto ret_no; |
a0d0e21e LW |
1786 | |
1787 | nope: | |
d9f97599 | 1788 | ++BmUSEFUL(rx->check_substr); |
5cd24f17 | 1789 | |
8ec5e241 NIS |
1790 | ret_no: |
1791 | SPAGAIN; | |
a0d0e21e | 1792 | PUSHs(&sv_no); |
4633a7c4 | 1793 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1794 | RETURN; |
1795 | } | |
1796 | ||
1797 | PP(pp_grepwhile) | |
1798 | { | |
4e35701f | 1799 | djSP; |
a0d0e21e LW |
1800 | |
1801 | if (SvTRUEx(POPs)) | |
1802 | stack_base[markstack_ptr[-1]++] = stack_base[*markstack_ptr]; | |
1803 | ++*markstack_ptr; | |
1804 | LEAVE; /* exit inner scope */ | |
1805 | ||
1806 | /* All done yet? */ | |
924508f0 | 1807 | if (stack_base + *markstack_ptr > SP) { |
a0d0e21e | 1808 | I32 items; |
54310121 | 1809 | I32 gimme = GIMME_V; |
a0d0e21e LW |
1810 | |
1811 | LEAVE; /* exit outer scope */ | |
1812 | (void)POPMARK; /* pop src */ | |
1813 | items = --*markstack_ptr - markstack_ptr[-1]; | |
1814 | (void)POPMARK; /* pop dst */ | |
1815 | SP = stack_base + POPMARK; /* pop original mark */ | |
54310121 | 1816 | if (gimme == G_SCALAR) { |
a0d0e21e LW |
1817 | dTARGET; |
1818 | XPUSHi(items); | |
a0d0e21e | 1819 | } |
54310121 | 1820 | else if (gimme == G_ARRAY) |
1821 | SP += items; | |
a0d0e21e LW |
1822 | RETURN; |
1823 | } | |
1824 | else { | |
1825 | SV *src; | |
1826 | ||
1827 | ENTER; /* enter inner scope */ | |
1828 | SAVESPTR(curpm); | |
1829 | ||
1830 | src = stack_base[*markstack_ptr]; | |
1831 | SvTEMP_off(src); | |
54b9620d | 1832 | DEFSV = src; |
a0d0e21e LW |
1833 | |
1834 | RETURNOP(cLOGOP->op_other); | |
1835 | } | |
1836 | } | |
1837 | ||
1838 | PP(pp_leavesub) | |
1839 | { | |
4e35701f | 1840 | djSP; |
a0d0e21e LW |
1841 | SV **mark; |
1842 | SV **newsp; | |
1843 | PMOP *newpm; | |
1844 | I32 gimme; | |
c09156bb | 1845 | register PERL_CONTEXT *cx; |
f86702cc | 1846 | struct block_sub cxsub; |
a0d0e21e LW |
1847 | |
1848 | POPBLOCK(cx,newpm); | |
f86702cc | 1849 | POPSUB1(cx); /* Delay POPSUB2 until stack values are safe */ |
1850 | ||
a1f49e72 | 1851 | TAINT_NOT; |
a0d0e21e LW |
1852 | if (gimme == G_SCALAR) { |
1853 | MARK = newsp + 1; | |
a29cdaf0 IZ |
1854 | if (MARK <= SP) { |
1855 | if (cxsub.cv && CvDEPTH(cxsub.cv) > 1) { | |
1856 | if (SvTEMP(TOPs)) { | |
1857 | *MARK = SvREFCNT_inc(TOPs); | |
1858 | FREETMPS; | |
1859 | sv_2mortal(*MARK); | |
1860 | } else { | |
1861 | FREETMPS; | |
1862 | *MARK = sv_mortalcopy(TOPs); | |
1863 | } | |
1864 | } else | |
1865 | *MARK = SvTEMP(TOPs) ? TOPs : sv_mortalcopy(TOPs); | |
1866 | } else { | |
f86702cc | 1867 | MEXTEND(MARK, 0); |
a0d0e21e LW |
1868 | *MARK = &sv_undef; |
1869 | } | |
1870 | SP = MARK; | |
1871 | } | |
54310121 | 1872 | else if (gimme == G_ARRAY) { |
f86702cc | 1873 | for (MARK = newsp + 1; MARK <= SP; MARK++) { |
a1f49e72 | 1874 | if (!SvTEMP(*MARK)) { |
f86702cc | 1875 | *MARK = sv_mortalcopy(*MARK); |
a1f49e72 CS |
1876 | TAINT_NOT; /* Each item is independent */ |
1877 | } | |
f86702cc | 1878 | } |
a0d0e21e | 1879 | } |
f86702cc | 1880 | PUTBACK; |
1881 | ||
1882 | POPSUB2(); /* Stack values are safe: release CV and @_ ... */ | |
1883 | curpm = newpm; /* ... and pop $1 et al */ | |
a0d0e21e LW |
1884 | |
1885 | LEAVE; | |
a0d0e21e LW |
1886 | return pop_return(); |
1887 | } | |
1888 | ||
76e3520e | 1889 | STATIC CV * |
8ac85365 | 1890 | get_db_sub(SV **svp, CV *cv) |
3de9ffa1 MB |
1891 | { |
1892 | dTHR; | |
491527d0 GS |
1893 | SV *dbsv = GvSV(DBsub); |
1894 | ||
1895 | if (!PERLDB_SUB_NN) { | |
1896 | GV *gv = CvGV(cv); | |
1897 | ||
1898 | save_item(dbsv); | |
1899 | if ( (CvFLAGS(cv) & (CVf_ANON | CVf_CLONED)) | |
1900 | || strEQ(GvNAME(gv), "END") | |
1901 | || ((GvCV(gv) != cv) && /* Could be imported, and old sub redefined. */ | |
1902 | !( (SvTYPE(*svp) == SVt_PVGV) && (GvCV((GV*)*svp) == cv) | |
1903 | && (gv = (GV*)*svp) ))) { | |
1904 | /* Use GV from the stack as a fallback. */ | |
1905 | /* GV is potentially non-unique, or contain different CV. */ | |
1906 | sv_setsv(dbsv, newRV((SV*)cv)); | |
1907 | } | |
1908 | else { | |
1909 | gv_efullname3(dbsv, gv, Nullch); | |
1910 | } | |
3de9ffa1 MB |
1911 | } |
1912 | else { | |
491527d0 GS |
1913 | SvUPGRADE(dbsv, SVt_PVIV); |
1914 | SvIOK_on(dbsv); | |
1915 | SAVEIV(SvIVX(dbsv)); | |
1916 | SvIVX(dbsv) = (IV)cv; /* Do it the quickest way */ | |
3de9ffa1 | 1917 | } |
491527d0 | 1918 | |
3de9ffa1 MB |
1919 | if (CvXSUB(cv)) |
1920 | curcopdb = curcop; | |
491527d0 | 1921 | cv = GvCV(DBsub); |
3de9ffa1 MB |
1922 | return cv; |
1923 | } | |
1924 | ||
a0d0e21e LW |
1925 | PP(pp_entersub) |
1926 | { | |
4e35701f | 1927 | djSP; dPOPss; |
a0d0e21e LW |
1928 | GV *gv; |
1929 | HV *stash; | |
1930 | register CV *cv; | |
c09156bb | 1931 | register PERL_CONTEXT *cx; |
5d94fbed | 1932 | I32 gimme; |
07055b4c | 1933 | bool hasargs = (op->op_flags & OPf_STACKED) != 0; |
a0d0e21e LW |
1934 | |
1935 | if (!sv) | |
1936 | DIE("Not a CODE reference"); | |
1937 | switch (SvTYPE(sv)) { | |
1938 | default: | |
1939 | if (!SvROK(sv)) { | |
748a9306 LW |
1940 | char *sym; |
1941 | ||
fb73857a | 1942 | if (sv == &sv_yes) { /* unfound import, ignore */ |
1943 | if (hasargs) | |
1944 | SP = stack_base + POPMARK; | |
a0d0e21e | 1945 | RETURN; |
fb73857a | 1946 | } |
15ff848f CS |
1947 | if (SvGMAGICAL(sv)) { |
1948 | mg_get(sv); | |
1949 | sym = SvPOKp(sv) ? SvPVX(sv) : Nullch; | |
1950 | } | |
1951 | else | |
1952 | sym = SvPV(sv, na); | |
1953 | if (!sym) | |
a0d0e21e LW |
1954 | DIE(no_usym, "a subroutine"); |
1955 | if (op->op_private & HINT_STRICT_REFS) | |
748a9306 LW |
1956 | DIE(no_symref, sym, "a subroutine"); |
1957 | cv = perl_get_cv(sym, TRUE); | |
a0d0e21e LW |
1958 | break; |
1959 | } | |
1960 | cv = (CV*)SvRV(sv); | |
1961 | if (SvTYPE(cv) == SVt_PVCV) | |
1962 | break; | |
1963 | /* FALL THROUGH */ | |
1964 | case SVt_PVHV: | |
1965 | case SVt_PVAV: | |
1966 | DIE("Not a CODE reference"); | |
1967 | case SVt_PVCV: | |
1968 | cv = (CV*)sv; | |
1969 | break; | |
1970 | case SVt_PVGV: | |
8ebc5c01 | 1971 | if (!(cv = GvCVu((GV*)sv))) |
a0d0e21e LW |
1972 | cv = sv_2cv(sv, &stash, &gv, TRUE); |
1973 | break; | |
1974 | } | |
1975 | ||
1976 | ENTER; | |
1977 | SAVETMPS; | |
1978 | ||
1979 | retry: | |
1980 | if (!cv) | |
1981 | DIE("Not a CODE reference"); | |
1982 | ||
1983 | if (!CvROOT(cv) && !CvXSUB(cv)) { | |
44a8e56a | 1984 | GV* autogv; |
22239a37 | 1985 | SV* sub_name; |
44a8e56a | 1986 | |
1987 | /* anonymous or undef'd function leaves us no recourse */ | |
1988 | if (CvANON(cv) || !(gv = CvGV(cv))) | |
1989 | DIE("Undefined subroutine called"); | |
1990 | /* autoloaded stub? */ | |
1991 | if (cv != GvCV(gv)) { | |
1992 | cv = GvCV(gv); | |
1993 | goto retry; | |
a0d0e21e | 1994 | } |
44a8e56a | 1995 | /* should call AUTOLOAD now? */ |
54310121 | 1996 | if ((autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), |
1997 | FALSE))) | |
1998 | { | |
44a8e56a | 1999 | cv = GvCV(autogv); |
2000 | goto retry; | |
a0d0e21e | 2001 | } |
44a8e56a | 2002 | /* sorry */ |
22239a37 NIS |
2003 | sub_name = sv_newmortal(); |
2004 | gv_efullname3(sub_name, gv, Nullch); | |
2005 | DIE("Undefined subroutine &%s called", SvPVX(sub_name)); | |
a0d0e21e LW |
2006 | } |
2007 | ||
54310121 | 2008 | gimme = GIMME_V; |
3de9ffa1 | 2009 | if ((op->op_private & OPpENTERSUB_DB) && GvCV(DBsub) && !CvNODEBUG(cv)) |
4f01c5a5 | 2010 | cv = get_db_sub(&sv, cv); |
3de9ffa1 MB |
2011 | if (!cv) |
2012 | DIE("No DBsub routine"); | |
a0d0e21e | 2013 | |
11343788 | 2014 | #ifdef USE_THREADS |
3de9ffa1 MB |
2015 | /* |
2016 | * First we need to check if the sub or method requires locking. | |
458fb581 MB |
2017 | * If so, we gain a lock on the CV, the first argument or the |
2018 | * stash (for static methods), as appropriate. This has to be | |
2019 | * inline because for FAKE_THREADS, COND_WAIT inlines code to | |
2020 | * reschedule by returning a new op. | |
3de9ffa1 | 2021 | */ |
11343788 | 2022 | MUTEX_LOCK(CvMUTEXP(cv)); |
77a005ab MB |
2023 | if (CvFLAGS(cv) & CVf_LOCKED) { |
2024 | MAGIC *mg; | |
2025 | if (CvFLAGS(cv) & CVf_METHOD) { | |
2026 | if (SP > stack_base + TOPMARK) | |
2027 | sv = *(stack_base + TOPMARK + 1); | |
2028 | else { | |
2029 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
2030 | croak("no argument for locked method call"); | |
2031 | } | |
2032 | if (SvROK(sv)) | |
2033 | sv = SvRV(sv); | |
458fb581 MB |
2034 | else { |
2035 | STRLEN len; | |
2036 | char *stashname = SvPV(sv, len); | |
2037 | sv = (SV*)gv_stashpvn(stashname, len, TRUE); | |
2038 | } | |
77a005ab MB |
2039 | } |
2040 | else { | |
2041 | sv = (SV*)cv; | |
2042 | } | |
2043 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
2044 | mg = condpair_magic(sv); | |
2045 | MUTEX_LOCK(MgMUTEXP(mg)); | |
2046 | if (MgOWNER(mg) == thr) | |
2047 | MUTEX_UNLOCK(MgMUTEXP(mg)); | |
2048 | else { | |
2049 | while (MgOWNER(mg)) | |
2050 | COND_WAIT(MgOWNERCONDP(mg), MgMUTEXP(mg)); | |
2051 | MgOWNER(mg) = thr; | |
1fd28e87 MB |
2052 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), "%p: pp_entersub lock %p\n", |
2053 | thr, sv);) | |
77a005ab | 2054 | MUTEX_UNLOCK(MgMUTEXP(mg)); |
e55aaa0e | 2055 | SvREFCNT_inc(sv); /* Keep alive until magic_mutexfree */ |
77a005ab | 2056 | save_destructor(unlock_condpair, sv); |
11343788 | 2057 | } |
77a005ab | 2058 | MUTEX_LOCK(CvMUTEXP(cv)); |
11343788 | 2059 | } |
3de9ffa1 MB |
2060 | /* |
2061 | * Now we have permission to enter the sub, we must distinguish | |
2062 | * four cases. (0) It's an XSUB (in which case we don't care | |
2063 | * about ownership); (1) it's ours already (and we're recursing); | |
2064 | * (2) it's free (but we may already be using a cached clone); | |
2065 | * (3) another thread owns it. Case (1) is easy: we just use it. | |
2066 | * Case (2) means we look for a clone--if we have one, use it | |
2067 | * otherwise grab ownership of cv. Case (3) means we look for a | |
2068 | * clone (for non-XSUBs) and have to create one if we don't | |
2069 | * already have one. | |
2070 | * Why look for a clone in case (2) when we could just grab | |
2071 | * ownership of cv straight away? Well, we could be recursing, | |
2072 | * i.e. we originally tried to enter cv while another thread | |
2073 | * owned it (hence we used a clone) but it has been freed up | |
2074 | * and we're now recursing into it. It may or may not be "better" | |
2075 | * to use the clone but at least CvDEPTH can be trusted. | |
2076 | */ | |
2077 | if (CvOWNER(cv) == thr || CvXSUB(cv)) | |
2078 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
11343788 | 2079 | else { |
3de9ffa1 MB |
2080 | /* Case (2) or (3) */ |
2081 | SV **svp; | |
2082 | ||
11343788 | 2083 | /* |
3de9ffa1 MB |
2084 | * XXX Might it be better to release CvMUTEXP(cv) while we |
2085 | * do the hv_fetch? We might find someone has pinched it | |
2086 | * when we look again, in which case we would be in case | |
2087 | * (3) instead of (2) so we'd have to clone. Would the fact | |
2088 | * that we released the mutex more quickly make up for this? | |
2089 | */ | |
6ee623d5 GS |
2090 | if (threadnum && |
2091 | (svp = hv_fetch(thr->cvcache, (char *)cv, sizeof(cv), FALSE))) | |
2092 | { | |
3de9ffa1 | 2093 | /* We already have a clone to use */ |
11343788 | 2094 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
3de9ffa1 MB |
2095 | cv = *(CV**)svp; |
2096 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), | |
1fd28e87 MB |
2097 | "entersub: %p already has clone %p:%s\n", |
2098 | thr, cv, SvPEEK((SV*)cv))); | |
3de9ffa1 MB |
2099 | CvOWNER(cv) = thr; |
2100 | SvREFCNT_inc(cv); | |
2101 | if (CvDEPTH(cv) == 0) | |
2102 | SAVEDESTRUCTOR(unset_cvowner, (void*) cv); | |
2103 | } | |
11343788 | 2104 | else { |
3de9ffa1 MB |
2105 | /* (2) => grab ownership of cv. (3) => make clone */ |
2106 | if (!CvOWNER(cv)) { | |
2107 | CvOWNER(cv) = thr; | |
2108 | SvREFCNT_inc(cv); | |
11343788 | 2109 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
d9f997d7 | 2110 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
1fd28e87 MB |
2111 | "entersub: %p grabbing %p:%s in stash %s\n", |
2112 | thr, cv, SvPEEK((SV*)cv), CvSTASH(cv) ? | |
3de9ffa1 MB |
2113 | HvNAME(CvSTASH(cv)) : "(none)")); |
2114 | } else { | |
2115 | /* Make a new clone. */ | |
2116 | CV *clonecv; | |
2117 | SvREFCNT_inc(cv); /* don't let it vanish from under us */ | |
2118 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
2119 | DEBUG_L((PerlIO_printf(PerlIO_stderr(), | |
1fd28e87 MB |
2120 | "entersub: %p cloning %p:%s\n", |
2121 | thr, cv, SvPEEK((SV*)cv)))); | |
3de9ffa1 MB |
2122 | /* |
2123 | * We're creating a new clone so there's no race | |
2124 | * between the original MUTEX_UNLOCK and the | |
2125 | * SvREFCNT_inc since no one will be trying to undef | |
2126 | * it out from underneath us. At least, I don't think | |
2127 | * there's a race... | |
2128 | */ | |
2129 | clonecv = cv_clone(cv); | |
2130 | SvREFCNT_dec(cv); /* finished with this */ | |
199100c8 | 2131 | hv_store(thr->cvcache, (char*)cv, sizeof(cv), (SV*)clonecv,0); |
3de9ffa1 MB |
2132 | CvOWNER(clonecv) = thr; |
2133 | cv = clonecv; | |
11343788 | 2134 | SvREFCNT_inc(cv); |
11343788 | 2135 | } |
3de9ffa1 MB |
2136 | DEBUG_L(if (CvDEPTH(cv) != 0) |
2137 | PerlIO_printf(PerlIO_stderr(), "depth %ld != 0\n", | |
2138 | CvDEPTH(cv));); | |
2139 | SAVEDESTRUCTOR(unset_cvowner, (void*) cv); | |
11343788 | 2140 | } |
3de9ffa1 | 2141 | } |
11343788 MB |
2142 | #endif /* USE_THREADS */ |
2143 | ||
a0d0e21e LW |
2144 | if (CvXSUB(cv)) { |
2145 | if (CvOLDSTYLE(cv)) { | |
ecfc5424 | 2146 | I32 (*fp3)_((int,int,int)); |
a0d0e21e LW |
2147 | dMARK; |
2148 | register I32 items = SP - MARK; | |
67955e0c | 2149 | /* We dont worry to copy from @_. */ |
924508f0 GS |
2150 | while (SP > mark) { |
2151 | SP[1] = SP[0]; | |
2152 | SP--; | |
a0d0e21e LW |
2153 | } |
2154 | stack_sp = mark + 1; | |
ecfc5424 AD |
2155 | fp3 = (I32(*)_((int,int,int)))CvXSUB(cv); |
2156 | items = (*fp3)(CvXSUBANY(cv).any_i32, | |
2157 | MARK - stack_base + 1, | |
2158 | items); | |
a0d0e21e LW |
2159 | stack_sp = stack_base + items; |
2160 | } | |
2161 | else { | |
748a9306 LW |
2162 | I32 markix = TOPMARK; |
2163 | ||
a0d0e21e | 2164 | PUTBACK; |
67955e0c | 2165 | |
2166 | if (!hasargs) { | |
2167 | /* Need to copy @_ to stack. Alternative may be to | |
2168 | * switch stack to @_, and copy return values | |
2169 | * back. This would allow popping @_ in XSUB, e.g.. XXXX */ | |
6d4ff0d2 MB |
2170 | AV* av; |
2171 | I32 items; | |
2172 | #ifdef USE_THREADS | |
2173 | av = (AV*)curpad[0]; | |
2174 | #else | |
2175 | av = GvAV(defgv); | |
2176 | #endif /* USE_THREADS */ | |
93965878 | 2177 | items = AvFILLp(av) + 1; /* @_ is not tieable */ |
67955e0c | 2178 | |
2179 | if (items) { | |
2180 | /* Mark is at the end of the stack. */ | |
924508f0 GS |
2181 | EXTEND(SP, items); |
2182 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
2183 | SP += items; | |
67955e0c | 2184 | PUTBACK ; |
2185 | } | |
2186 | } | |
2187 | if (curcopdb) { /* We assume that the first | |
2188 | XSUB in &DB::sub is the | |
2189 | called one. */ | |
2190 | SAVESPTR(curcop); | |
2191 | curcop = curcopdb; | |
2192 | curcopdb = NULL; | |
2193 | } | |
2194 | /* Do we need to open block here? XXXX */ | |
1d583055 | 2195 | (void)(*CvXSUB(cv))(cv _PERL_OBJECT_THIS); |
748a9306 LW |
2196 | |
2197 | /* Enforce some sanity in scalar context. */ | |
5d94fbed | 2198 | if (gimme == G_SCALAR && ++markix != stack_sp - stack_base ) { |
748a9306 LW |
2199 | if (markix > stack_sp - stack_base) |
2200 | *(stack_base + markix) = &sv_undef; | |
2201 | else | |
2202 | *(stack_base + markix) = *stack_sp; | |
2203 | stack_sp = stack_base + markix; | |
2204 | } | |
a0d0e21e LW |
2205 | } |
2206 | LEAVE; | |
2207 | return NORMAL; | |
2208 | } | |
2209 | else { | |
2210 | dMARK; | |
2211 | register I32 items = SP - MARK; | |
a0d0e21e LW |
2212 | AV* padlist = CvPADLIST(cv); |
2213 | SV** svp = AvARRAY(padlist); | |
2214 | push_return(op->op_next); | |
2215 | PUSHBLOCK(cx, CXt_SUB, MARK); | |
2216 | PUSHSUB(cx); | |
2217 | CvDEPTH(cv)++; | |
2218 | if (CvDEPTH(cv) < 2) | |
2219 | (void)SvREFCNT_inc(cv); | |
2220 | else { /* save temporaries on recursion? */ | |
5f05dabc | 2221 | if (CvDEPTH(cv) == 100 && dowarn |
84902520 | 2222 | && !(PERLDB_SUB && cv == GvCV(DBsub))) |
44a8e56a | 2223 | sub_crush_depth(cv); |
93965878 | 2224 | if (CvDEPTH(cv) > AvFILLp(padlist)) { |
a0d0e21e LW |
2225 | AV *av; |
2226 | AV *newpad = newAV(); | |
4aa0a1f7 | 2227 | SV **oldpad = AvARRAY(svp[CvDEPTH(cv)-1]); |
93965878 | 2228 | I32 ix = AvFILLp((AV*)svp[1]); |
a0d0e21e | 2229 | svp = AvARRAY(svp[0]); |
748a9306 | 2230 | for ( ;ix > 0; ix--) { |
a0d0e21e | 2231 | if (svp[ix] != &sv_undef) { |
748a9306 | 2232 | char *name = SvPVX(svp[ix]); |
5f05dabc | 2233 | if ((SvFLAGS(svp[ix]) & SVf_FAKE) /* outer lexical? */ |
2234 | || *name == '&') /* anonymous code? */ | |
2235 | { | |
2236 | av_store(newpad, ix, SvREFCNT_inc(oldpad[ix])); | |
748a9306 LW |
2237 | } |
2238 | else { /* our own lexical */ | |
2239 | if (*name == '@') | |
2240 | av_store(newpad, ix, sv = (SV*)newAV()); | |
2241 | else if (*name == '%') | |
2242 | av_store(newpad, ix, sv = (SV*)newHV()); | |
2243 | else | |
2244 | av_store(newpad, ix, sv = NEWSV(0,0)); | |
2245 | SvPADMY_on(sv); | |
2246 | } | |
a0d0e21e LW |
2247 | } |
2248 | else { | |
748a9306 | 2249 | av_store(newpad, ix, sv = NEWSV(0,0)); |
a0d0e21e LW |
2250 | SvPADTMP_on(sv); |
2251 | } | |
2252 | } | |
2253 | av = newAV(); /* will be @_ */ | |
2254 | av_extend(av, 0); | |
2255 | av_store(newpad, 0, (SV*)av); | |
2256 | AvFLAGS(av) = AVf_REIFY; | |
2257 | av_store(padlist, CvDEPTH(cv), (SV*)newpad); | |
93965878 | 2258 | AvFILLp(padlist) = CvDEPTH(cv); |
a0d0e21e LW |
2259 | svp = AvARRAY(padlist); |
2260 | } | |
2261 | } | |
6d4ff0d2 MB |
2262 | #ifdef USE_THREADS |
2263 | if (!hasargs) { | |
a0d0e21e | 2264 | AV* av = (AV*)curpad[0]; |
6d4ff0d2 | 2265 | |
93965878 | 2266 | items = AvFILLp(av) + 1; |
6d4ff0d2 MB |
2267 | if (items) { |
2268 | /* Mark is at the end of the stack. */ | |
924508f0 GS |
2269 | EXTEND(SP, items); |
2270 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
2271 | SP += items; | |
6d4ff0d2 MB |
2272 | PUTBACK ; |
2273 | } | |
2274 | } | |
2275 | #endif /* USE_THREADS */ | |
2276 | SAVESPTR(curpad); | |
2277 | curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]); | |
2278 | #ifndef USE_THREADS | |
2279 | if (hasargs) | |
2280 | #endif /* USE_THREADS */ | |
2281 | { | |
2282 | AV* av; | |
a0d0e21e LW |
2283 | SV** ary; |
2284 | ||
77a005ab | 2285 | #if 0 |
0f15f207 MB |
2286 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
2287 | "%p entersub preparing @_\n", thr)); | |
77a005ab | 2288 | #endif |
6d4ff0d2 | 2289 | av = (AV*)curpad[0]; |
a0d0e21e LW |
2290 | if (AvREAL(av)) { |
2291 | av_clear(av); | |
2292 | AvREAL_off(av); | |
2293 | } | |
6d4ff0d2 | 2294 | #ifndef USE_THREADS |
a0d0e21e | 2295 | cx->blk_sub.savearray = GvAV(defgv); |
0c8c7a05 | 2296 | GvAV(defgv) = (AV*)SvREFCNT_inc(av); |
6d4ff0d2 MB |
2297 | #endif /* USE_THREADS */ |
2298 | cx->blk_sub.argarray = av; | |
a0d0e21e LW |
2299 | ++MARK; |
2300 | ||
2301 | if (items > AvMAX(av) + 1) { | |
2302 | ary = AvALLOC(av); | |
2303 | if (AvARRAY(av) != ary) { | |
2304 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); | |
2305 | SvPVX(av) = (char*)ary; | |
2306 | } | |
2307 | if (items > AvMAX(av) + 1) { | |
2308 | AvMAX(av) = items - 1; | |
2309 | Renew(ary,items,SV*); | |
2310 | AvALLOC(av) = ary; | |
2311 | SvPVX(av) = (char*)ary; | |
2312 | } | |
2313 | } | |
2314 | Copy(MARK,AvARRAY(av),items,SV*); | |
93965878 | 2315 | AvFILLp(av) = items - 1; |
a0d0e21e LW |
2316 | |
2317 | while (items--) { | |
2318 | if (*MARK) | |
2319 | SvTEMP_off(*MARK); | |
2320 | MARK++; | |
2321 | } | |
2322 | } | |
77a005ab | 2323 | #if 0 |
0f15f207 MB |
2324 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
2325 | "%p entersub returning %p\n", thr, CvSTART(cv))); | |
77a005ab | 2326 | #endif |
a0d0e21e LW |
2327 | RETURNOP(CvSTART(cv)); |
2328 | } | |
2329 | } | |
2330 | ||
44a8e56a | 2331 | void |
8ac85365 | 2332 | sub_crush_depth(CV *cv) |
44a8e56a | 2333 | { |
2334 | if (CvANON(cv)) | |
2335 | warn("Deep recursion on anonymous subroutine"); | |
2336 | else { | |
2337 | SV* tmpstr = sv_newmortal(); | |
2338 | gv_efullname3(tmpstr, CvGV(cv), Nullch); | |
2339 | warn("Deep recursion on subroutine \"%s\"", SvPVX(tmpstr)); | |
2340 | } | |
2341 | } | |
2342 | ||
a0d0e21e LW |
2343 | PP(pp_aelem) |
2344 | { | |
4e35701f | 2345 | djSP; |
a0d0e21e | 2346 | SV** svp; |
748a9306 | 2347 | I32 elem = POPi; |
68dc0745 | 2348 | AV* av = (AV*)POPs; |
2349 | U32 lval = op->op_flags & OPf_MOD; | |
2350 | U32 defer = (op->op_private & OPpLVAL_DEFER) && (elem > AvFILL(av)); | |
be6c24e0 | 2351 | SV *sv; |
a0d0e21e | 2352 | |
748a9306 LW |
2353 | if (elem > 0) |
2354 | elem -= curcop->cop_arybase; | |
a0d0e21e LW |
2355 | if (SvTYPE(av) != SVt_PVAV) |
2356 | RETPUSHUNDEF; | |
68dc0745 | 2357 | svp = av_fetch(av, elem, lval && !defer); |
a0d0e21e | 2358 | if (lval) { |
68dc0745 | 2359 | if (!svp || *svp == &sv_undef) { |
2360 | SV* lv; | |
2361 | if (!defer) | |
2362 | DIE(no_aelem, elem); | |
2363 | lv = sv_newmortal(); | |
2364 | sv_upgrade(lv, SVt_PVLV); | |
2365 | LvTYPE(lv) = 'y'; | |
2366 | sv_magic(lv, Nullsv, 'y', Nullch, 0); | |
2367 | LvTARG(lv) = SvREFCNT_inc(av); | |
2368 | LvTARGOFF(lv) = elem; | |
2369 | LvTARGLEN(lv) = 1; | |
2370 | PUSHs(lv); | |
2371 | RETURN; | |
2372 | } | |
a0d0e21e | 2373 | if (op->op_private & OPpLVAL_INTRO) |
161b7d16 | 2374 | save_aelem(av, elem, svp); |
5f05dabc | 2375 | else if (op->op_private & OPpDEREF) |
68dc0745 | 2376 | vivify_ref(*svp, op->op_private & OPpDEREF); |
a0d0e21e | 2377 | } |
be6c24e0 GS |
2378 | sv = (svp ? *svp : &sv_undef); |
2379 | if (!lval && SvGMAGICAL(sv)) /* see note in pp_helem() */ | |
2380 | sv = sv_mortalcopy(sv); | |
2381 | PUSHs(sv); | |
a0d0e21e LW |
2382 | RETURN; |
2383 | } | |
2384 | ||
02a9e968 | 2385 | void |
8ac85365 | 2386 | vivify_ref(SV *sv, U32 to_what) |
02a9e968 CS |
2387 | { |
2388 | if (SvGMAGICAL(sv)) | |
2389 | mg_get(sv); | |
2390 | if (!SvOK(sv)) { | |
2391 | if (SvREADONLY(sv)) | |
2392 | croak(no_modify); | |
5f05dabc | 2393 | if (SvTYPE(sv) < SVt_RV) |
2394 | sv_upgrade(sv, SVt_RV); | |
2395 | else if (SvTYPE(sv) >= SVt_PV) { | |
2396 | (void)SvOOK_off(sv); | |
2397 | Safefree(SvPVX(sv)); | |
2398 | SvLEN(sv) = SvCUR(sv) = 0; | |
2399 | } | |
68dc0745 | 2400 | switch (to_what) { |
5f05dabc | 2401 | case OPpDEREF_SV: |
8c52afec | 2402 | SvRV(sv) = NEWSV(355,0); |
5f05dabc | 2403 | break; |
2404 | case OPpDEREF_AV: | |
2405 | SvRV(sv) = (SV*)newAV(); | |
2406 | break; | |
2407 | case OPpDEREF_HV: | |
2408 | SvRV(sv) = (SV*)newHV(); | |
2409 | break; | |
2410 | } | |
02a9e968 CS |
2411 | SvROK_on(sv); |
2412 | SvSETMAGIC(sv); | |
2413 | } | |
2414 | } | |
2415 | ||
a0d0e21e LW |
2416 | PP(pp_method) |
2417 | { | |
4e35701f | 2418 | djSP; |
a0d0e21e LW |
2419 | SV* sv; |
2420 | SV* ob; | |
2421 | GV* gv; | |
56304f61 CS |
2422 | HV* stash; |
2423 | char* name; | |
ac91690f CS |
2424 | char* packname; |
2425 | STRLEN packlen; | |
a0d0e21e | 2426 | |
fb73857a | 2427 | if (SvROK(TOPs)) { |
2428 | sv = SvRV(TOPs); | |
2429 | if (SvTYPE(sv) == SVt_PVCV) { | |
2430 | SETs(sv); | |
2431 | RETURN; | |
2432 | } | |
2433 | } | |
2434 | ||
56304f61 | 2435 | name = SvPV(TOPs, na); |
a0d0e21e LW |
2436 | sv = *(stack_base + TOPMARK + 1); |
2437 | ||
16d20bd9 AD |
2438 | if (SvGMAGICAL(sv)) |
2439 | mg_get(sv); | |
a0d0e21e | 2440 | if (SvROK(sv)) |
16d20bd9 | 2441 | ob = (SV*)SvRV(sv); |
a0d0e21e LW |
2442 | else { |
2443 | GV* iogv; | |
a0d0e21e | 2444 | |
56304f61 | 2445 | packname = Nullch; |
a0d0e21e | 2446 | if (!SvOK(sv) || |
56304f61 | 2447 | !(packname = SvPV(sv, packlen)) || |
a0d0e21e LW |
2448 | !(iogv = gv_fetchpv(packname, FALSE, SVt_PVIO)) || |
2449 | !(ob=(SV*)GvIO(iogv))) | |
2450 | { | |
56304f61 | 2451 | if (!packname || !isIDFIRST(*packname)) |
72b5445b GS |
2452 | DIE("Can't call method \"%s\" %s", name, |
2453 | SvOK(sv)? "without a package or object reference" | |
2454 | : "on an undefined value"); | |
56304f61 | 2455 | stash = gv_stashpvn(packname, packlen, TRUE); |
ac91690f | 2456 | goto fetch; |
a0d0e21e | 2457 | } |
ac91690f | 2458 | *(stack_base + TOPMARK + 1) = sv_2mortal(newRV((SV*)iogv)); |
a0d0e21e LW |
2459 | } |
2460 | ||
ac91690f | 2461 | if (!ob || !SvOBJECT(ob)) |
a0d0e21e | 2462 | DIE("Can't call method \"%s\" on unblessed reference", name); |
a0d0e21e | 2463 | |
56304f61 | 2464 | stash = SvSTASH(ob); |
a0d0e21e | 2465 | |
ac91690f | 2466 | fetch: |
ac91690f | 2467 | gv = gv_fetchmethod(stash, name); |
56304f61 CS |
2468 | if (!gv) { |
2469 | char* leaf = name; | |
2470 | char* sep = Nullch; | |
2471 | char* p; | |
2472 | ||
2473 | for (p = name; *p; p++) { | |
2474 | if (*p == '\'') | |
2475 | sep = p, leaf = p + 1; | |
2476 | else if (*p == ':' && *(p + 1) == ':') | |
2477 | sep = p, leaf = p + 2; | |
2478 | } | |
2479 | if (!sep || ((sep - name) == 5 && strnEQ(name, "SUPER", 5))) { | |
2480 | packname = HvNAME(sep ? curcop->cop_stash : stash); | |
2481 | packlen = strlen(packname); | |
2482 | } | |
2483 | else { | |
2484 | packname = name; | |
2485 | packlen = sep - name; | |
2486 | } | |
2487 | DIE("Can't locate object method \"%s\" via package \"%.*s\"", | |
2488 | leaf, (int)packlen, packname); | |
2489 | } | |
8ebc5c01 | 2490 | SETs(isGV(gv) ? (SV*)GvCV(gv) : (SV*)gv); |
a0d0e21e LW |
2491 | RETURN; |
2492 | } | |
22239a37 | 2493 |