Commit | Line | Data |
a0d0e21e |
1 | /* pp_hot.c |
2 | * |
9607fc9c |
3 | * Copyright (c) 1991-1997, Larry Wall |
a0d0e21e |
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 |
21 | #ifdef I_UNISTD |
22 | #include <unistd.h> |
23 | #endif |
9d116dd7 |
24 | #ifdef I_FCNTL |
25 | #include <fcntl.h> |
26 | #endif |
27 | #ifdef I_SYS_FILE |
28 | #include <sys/file.h> |
29 | #endif |
8ac85365 |
30 | |
a0d0e21e |
31 | /* Hot code. */ |
32 | |
11343788 |
33 | #ifdef USE_THREADS |
34 | static void |
8ac85365 |
35 | unset_cvowner(void *cvarg) |
11343788 |
36 | { |
37 | register CV* cv = (CV *) cvarg; |
38 | #ifdef DEBUGGING |
39 | dTHR; |
40 | #endif /* DEBUGGING */ |
41 | |
1fd28e87 |
42 | DEBUG_L((PerlIO_printf(PerlIO_stderr(), "%p unsetting CvOWNER of %p:%s\n", |
43 | thr, cv, SvPEEK((SV*)cv)))); |
11343788 |
44 | MUTEX_LOCK(CvMUTEXP(cv)); |
77a005ab |
45 | DEBUG_L(if (CvDEPTH(cv) != 0) |
46 | PerlIO_printf(PerlIO_stderr(), "depth %ld != 0\n", |
47 | CvDEPTH(cv));); |
11343788 |
48 | assert(thr == CvOWNER(cv)); |
49 | CvOWNER(cv) = 0; |
11343788 |
50 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
51 | SvREFCNT_dec(cv); |
52 | } |
11343788 |
53 | #endif /* USE_THREADS */ |
54 | |
a0d0e21e |
55 | PP(pp_const) |
56 | { |
4e35701f |
57 | djSP; |
a0d0e21e |
58 | XPUSHs(cSVOP->op_sv); |
59 | RETURN; |
60 | } |
61 | |
62 | PP(pp_nextstate) |
63 | { |
533c011a |
64 | PL_curcop = (COP*)PL_op; |
a0d0e21e |
65 | TAINT_NOT; /* Each statement is presumed innocent */ |
3280af22 |
66 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e |
67 | FREETMPS; |
68 | return NORMAL; |
69 | } |
70 | |
71 | PP(pp_gvsv) |
72 | { |
4e35701f |
73 | djSP; |
924508f0 |
74 | EXTEND(SP,1); |
533c011a |
75 | if (PL_op->op_private & OPpLVAL_INTRO) |
a0d0e21e |
76 | PUSHs(save_scalar(cGVOP->op_gv)); |
77 | else |
78 | PUSHs(GvSV(cGVOP->op_gv)); |
79 | RETURN; |
80 | } |
81 | |
82 | PP(pp_null) |
83 | { |
84 | return NORMAL; |
85 | } |
86 | |
87 | PP(pp_pushmark) |
88 | { |
3280af22 |
89 | PUSHMARK(PL_stack_sp); |
a0d0e21e |
90 | return NORMAL; |
91 | } |
92 | |
93 | PP(pp_stringify) |
94 | { |
4e35701f |
95 | djSP; dTARGET; |
a0d0e21e |
96 | STRLEN len; |
97 | char *s; |
98 | s = SvPV(TOPs,len); |
99 | sv_setpvn(TARG,s,len); |
100 | SETTARG; |
101 | RETURN; |
102 | } |
103 | |
104 | PP(pp_gv) |
105 | { |
4e35701f |
106 | djSP; |
a0d0e21e |
107 | XPUSHs((SV*)cGVOP->op_gv); |
108 | RETURN; |
109 | } |
110 | |
111 | PP(pp_and) |
112 | { |
4e35701f |
113 | djSP; |
a0d0e21e |
114 | if (!SvTRUE(TOPs)) |
115 | RETURN; |
116 | else { |
117 | --SP; |
118 | RETURNOP(cLOGOP->op_other); |
119 | } |
120 | } |
121 | |
122 | PP(pp_sassign) |
123 | { |
4e35701f |
124 | djSP; dPOPTOPssrl; |
748a9306 |
125 | MAGIC *mg; |
126 | |
533c011a |
127 | if (PL_op->op_private & OPpASSIGN_BACKWARDS) { |
a0d0e21e |
128 | SV *temp; |
129 | temp = left; left = right; right = temp; |
130 | } |
3280af22 |
131 | if (PL_tainting && PL_tainted && !SvTAINTED(left)) |
a0d0e21e |
132 | TAINT_NOT; |
54310121 |
133 | SvSetMagicSV(right, left); |
a0d0e21e |
134 | SETs(right); |
135 | RETURN; |
136 | } |
137 | |
138 | PP(pp_cond_expr) |
139 | { |
4e35701f |
140 | djSP; |
a0d0e21e |
141 | if (SvTRUEx(POPs)) |
142 | RETURNOP(cCONDOP->op_true); |
143 | else |
144 | RETURNOP(cCONDOP->op_false); |
145 | } |
146 | |
147 | PP(pp_unstack) |
148 | { |
149 | I32 oldsave; |
150 | TAINT_NOT; /* Each statement is presumed innocent */ |
3280af22 |
151 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e |
152 | FREETMPS; |
3280af22 |
153 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e |
154 | LEAVE_SCOPE(oldsave); |
155 | return NORMAL; |
156 | } |
157 | |
a0d0e21e |
158 | PP(pp_concat) |
159 | { |
4e35701f |
160 | djSP; dATARGET; tryAMAGICbin(concat,opASSIGN); |
748a9306 |
161 | { |
162 | dPOPTOPssrl; |
a0d0e21e |
163 | STRLEN len; |
164 | char *s; |
165 | if (TARG != left) { |
166 | s = SvPV(left,len); |
167 | sv_setpvn(TARG,s,len); |
168 | } |
c07a80fd |
169 | else if (SvGMAGICAL(TARG)) |
170 | mg_get(TARG); |
7a4c00b4 |
171 | else if (!SvOK(TARG) && SvTYPE(TARG) <= SVt_PVMG) { |
748a9306 |
172 | sv_setpv(TARG, ""); /* Suppress warning. */ |
7a4c00b4 |
173 | s = SvPV_force(TARG, len); |
4633a7c4 |
174 | } |
a0d0e21e |
175 | s = SvPV(right,len); |
68dc0745 |
176 | if (SvOK(TARG)) |
177 | sv_catpvn(TARG,s,len); |
178 | else |
179 | sv_setpvn(TARG,s,len); /* suppress warning */ |
a0d0e21e |
180 | SETTARG; |
181 | RETURN; |
748a9306 |
182 | } |
a0d0e21e |
183 | } |
184 | |
185 | PP(pp_padsv) |
186 | { |
4e35701f |
187 | djSP; dTARGET; |
a0d0e21e |
188 | XPUSHs(TARG); |
533c011a |
189 | if (PL_op->op_flags & OPf_MOD) { |
190 | if (PL_op->op_private & OPpLVAL_INTRO) |
191 | SAVECLEARSV(PL_curpad[PL_op->op_targ]); |
192 | else if (PL_op->op_private & OPpDEREF) { |
8ec5e241 |
193 | PUTBACK; |
533c011a |
194 | vivify_ref(PL_curpad[PL_op->op_targ], PL_op->op_private & OPpDEREF); |
8ec5e241 |
195 | SPAGAIN; |
196 | } |
4633a7c4 |
197 | } |
a0d0e21e |
198 | RETURN; |
199 | } |
200 | |
201 | PP(pp_readline) |
202 | { |
3280af22 |
203 | PL_last_in_gv = (GV*)(*PL_stack_sp--); |
a0d0e21e |
204 | return do_readline(); |
205 | } |
206 | |
207 | PP(pp_eq) |
208 | { |
4e35701f |
209 | djSP; tryAMAGICbinSET(eq,0); |
a0d0e21e |
210 | { |
211 | dPOPnv; |
54310121 |
212 | SETs(boolSV(TOPn == value)); |
a0d0e21e |
213 | RETURN; |
214 | } |
215 | } |
216 | |
217 | PP(pp_preinc) |
218 | { |
4e35701f |
219 | djSP; |
68dc0745 |
220 | if (SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV) |
44a8e56a |
221 | croak(no_modify); |
55497cff |
222 | if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) && |
223 | SvIVX(TOPs) != IV_MAX) |
224 | { |
748a9306 |
225 | ++SvIVX(TOPs); |
55497cff |
226 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
748a9306 |
227 | } |
228 | else |
229 | sv_inc(TOPs); |
a0d0e21e |
230 | SvSETMAGIC(TOPs); |
231 | return NORMAL; |
232 | } |
233 | |
234 | PP(pp_or) |
235 | { |
4e35701f |
236 | djSP; |
a0d0e21e |
237 | if (SvTRUE(TOPs)) |
238 | RETURN; |
239 | else { |
240 | --SP; |
241 | RETURNOP(cLOGOP->op_other); |
242 | } |
243 | } |
244 | |
245 | PP(pp_add) |
246 | { |
4e35701f |
247 | djSP; dATARGET; tryAMAGICbin(add,opASSIGN); |
a0d0e21e |
248 | { |
7a4c00b4 |
249 | dPOPTOPnnrl_ul; |
a0d0e21e |
250 | SETn( left + right ); |
251 | RETURN; |
252 | } |
253 | } |
254 | |
255 | PP(pp_aelemfast) |
256 | { |
4e35701f |
257 | djSP; |
a0d0e21e |
258 | AV *av = GvAV((GV*)cSVOP->op_sv); |
533c011a |
259 | U32 lval = PL_op->op_flags & OPf_MOD; |
260 | SV** svp = av_fetch(av, PL_op->op_private, lval); |
3280af22 |
261 | SV *sv = (svp ? *svp : &PL_sv_undef); |
6ff81951 |
262 | EXTEND(SP, 1); |
be6c24e0 |
263 | if (!lval && SvGMAGICAL(sv)) /* see note in pp_helem() */ |
264 | sv = sv_mortalcopy(sv); |
265 | PUSHs(sv); |
a0d0e21e |
266 | RETURN; |
267 | } |
268 | |
269 | PP(pp_join) |
270 | { |
4e35701f |
271 | djSP; dMARK; dTARGET; |
a0d0e21e |
272 | MARK++; |
273 | do_join(TARG, *MARK, MARK, SP); |
274 | SP = MARK; |
275 | SETs(TARG); |
276 | RETURN; |
277 | } |
278 | |
279 | PP(pp_pushre) |
280 | { |
4e35701f |
281 | djSP; |
44a8e56a |
282 | #ifdef DEBUGGING |
283 | /* |
284 | * We ass_u_me that LvTARGOFF() comes first, and that two STRLENs |
285 | * will be enough to hold an OP*. |
286 | */ |
287 | SV* sv = sv_newmortal(); |
288 | sv_upgrade(sv, SVt_PVLV); |
289 | LvTYPE(sv) = '/'; |
533c011a |
290 | Copy(&PL_op, &LvTARGOFF(sv), 1, OP*); |
44a8e56a |
291 | XPUSHs(sv); |
292 | #else |
6b88bc9c |
293 | XPUSHs((SV*)PL_op); |
44a8e56a |
294 | #endif |
a0d0e21e |
295 | RETURN; |
296 | } |
297 | |
298 | /* Oversized hot code. */ |
299 | |
300 | PP(pp_print) |
301 | { |
4e35701f |
302 | djSP; dMARK; dORIGMARK; |
a0d0e21e |
303 | GV *gv; |
304 | IO *io; |
760ac839 |
305 | register PerlIO *fp; |
236988e4 |
306 | MAGIC *mg; |
a0d0e21e |
307 | |
533c011a |
308 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e |
309 | gv = (GV*)*++MARK; |
310 | else |
3280af22 |
311 | gv = PL_defoutgv; |
3049007d |
312 | if (SvRMAGICAL(gv) && (mg = mg_find((SV*)gv, 'q'))) { |
68dc0745 |
313 | if (MARK == ORIGMARK) { |
a60c0954 |
314 | /* If using default handle then we need to make space to |
315 | * pass object as 1st arg, so move other args up ... |
316 | */ |
4352c267 |
317 | MEXTEND(SP, 1); |
68dc0745 |
318 | ++MARK; |
319 | Move(MARK, MARK + 1, (SP - MARK) + 1, SV*); |
320 | ++SP; |
321 | } |
322 | PUSHMARK(MARK - 1); |
236988e4 |
323 | *MARK = mg->mg_obj; |
68dc0745 |
324 | PUTBACK; |
236988e4 |
325 | ENTER; |
326 | perl_call_method("PRINT", G_SCALAR); |
327 | LEAVE; |
328 | SPAGAIN; |
68dc0745 |
329 | MARK = ORIGMARK + 1; |
330 | *MARK = *SP; |
331 | SP = MARK; |
236988e4 |
332 | RETURN; |
333 | } |
a0d0e21e |
334 | if (!(io = GvIO(gv))) { |
3280af22 |
335 | if (PL_dowarn) { |
748a9306 |
336 | SV* sv = sv_newmortal(); |
4f732624 |
337 | gv_fullname3(sv, gv, Nullch); |
3280af22 |
338 | warn("Filehandle %s never opened", SvPV(sv,PL_na)); |
748a9306 |
339 | } |
340 | |
341 | SETERRNO(EBADF,RMS$_IFI); |
a0d0e21e |
342 | goto just_say_no; |
343 | } |
344 | else if (!(fp = IoOFP(io))) { |
3280af22 |
345 | if (PL_dowarn) { |
748a9306 |
346 | SV* sv = sv_newmortal(); |
4f732624 |
347 | gv_fullname3(sv, gv, Nullch); |
a0d0e21e |
348 | if (IoIFP(io)) |
3280af22 |
349 | warn("Filehandle %s opened only for input", SvPV(sv,PL_na)); |
a0d0e21e |
350 | else |
3280af22 |
351 | warn("print on closed filehandle %s", SvPV(sv,PL_na)); |
a0d0e21e |
352 | } |
748a9306 |
353 | SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI); |
a0d0e21e |
354 | goto just_say_no; |
355 | } |
356 | else { |
357 | MARK++; |
3280af22 |
358 | if (PL_ofslen) { |
a0d0e21e |
359 | while (MARK <= SP) { |
360 | if (!do_print(*MARK, fp)) |
361 | break; |
362 | MARK++; |
363 | if (MARK <= SP) { |
3280af22 |
364 | if (PerlIO_write(fp, PL_ofs, PL_ofslen) == 0 || PerlIO_error(fp)) { |
a0d0e21e |
365 | MARK--; |
366 | break; |
367 | } |
368 | } |
369 | } |
370 | } |
371 | else { |
372 | while (MARK <= SP) { |
373 | if (!do_print(*MARK, fp)) |
374 | break; |
375 | MARK++; |
376 | } |
377 | } |
378 | if (MARK <= SP) |
379 | goto just_say_no; |
380 | else { |
3280af22 |
381 | if (PL_orslen) |
382 | if (PerlIO_write(fp, PL_ors, PL_orslen) == 0 || PerlIO_error(fp)) |
a0d0e21e |
383 | goto just_say_no; |
384 | |
385 | if (IoFLAGS(io) & IOf_FLUSH) |
760ac839 |
386 | if (PerlIO_flush(fp) == EOF) |
a0d0e21e |
387 | goto just_say_no; |
388 | } |
389 | } |
390 | SP = ORIGMARK; |
3280af22 |
391 | PUSHs(&PL_sv_yes); |
a0d0e21e |
392 | RETURN; |
393 | |
394 | just_say_no: |
395 | SP = ORIGMARK; |
3280af22 |
396 | PUSHs(&PL_sv_undef); |
a0d0e21e |
397 | RETURN; |
398 | } |
399 | |
400 | PP(pp_rv2av) |
401 | { |
4e35701f |
402 | djSP; dPOPss; |
a0d0e21e |
403 | AV *av; |
404 | |
405 | if (SvROK(sv)) { |
406 | wasref: |
407 | av = (AV*)SvRV(sv); |
408 | if (SvTYPE(av) != SVt_PVAV) |
409 | DIE("Not an ARRAY reference"); |
533c011a |
410 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e |
411 | PUSHs((SV*)av); |
412 | RETURN; |
413 | } |
414 | } |
415 | else { |
416 | if (SvTYPE(sv) == SVt_PVAV) { |
417 | av = (AV*)sv; |
533c011a |
418 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e |
419 | PUSHs((SV*)av); |
420 | RETURN; |
421 | } |
422 | } |
423 | else { |
67955e0c |
424 | GV *gv; |
425 | |
a0d0e21e |
426 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 |
427 | char *sym; |
428 | |
a0d0e21e |
429 | if (SvGMAGICAL(sv)) { |
430 | mg_get(sv); |
431 | if (SvROK(sv)) |
432 | goto wasref; |
433 | } |
434 | if (!SvOK(sv)) { |
533c011a |
435 | if (PL_op->op_flags & OPf_REF || |
436 | PL_op->op_private & HINT_STRICT_REFS) |
a0d0e21e |
437 | DIE(no_usym, "an ARRAY"); |
3280af22 |
438 | if (PL_dowarn) |
d83e6520 |
439 | warn(warn_uninit); |
4633a7c4 |
440 | if (GIMME == G_ARRAY) |
441 | RETURN; |
a0d0e21e |
442 | RETPUSHUNDEF; |
443 | } |
3280af22 |
444 | sym = SvPV(sv,PL_na); |
533c011a |
445 | if (PL_op->op_private & HINT_STRICT_REFS) |
748a9306 |
446 | DIE(no_symref, sym, "an ARRAY"); |
67955e0c |
447 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVAV); |
448 | } else { |
449 | gv = (GV*)sv; |
a0d0e21e |
450 | } |
67955e0c |
451 | av = GvAVn(gv); |
533c011a |
452 | if (PL_op->op_private & OPpLVAL_INTRO) |
67955e0c |
453 | av = save_ary(gv); |
533c011a |
454 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e |
455 | PUSHs((SV*)av); |
456 | RETURN; |
457 | } |
458 | } |
459 | } |
460 | |
461 | if (GIMME == G_ARRAY) { |
462 | I32 maxarg = AvFILL(av) + 1; |
93965878 |
463 | EXTEND(SP, maxarg); |
464 | if (SvRMAGICAL(av)) { |
465 | U32 i; |
466 | for (i=0; i < maxarg; i++) { |
467 | SV **svp = av_fetch(av, i, FALSE); |
3280af22 |
468 | SP[i+1] = (svp) ? *svp : &PL_sv_undef; |
93965878 |
469 | } |
470 | } |
471 | else { |
472 | Copy(AvARRAY(av), SP+1, maxarg, SV*); |
473 | } |
a0d0e21e |
474 | SP += maxarg; |
475 | } |
476 | else { |
477 | dTARGET; |
478 | I32 maxarg = AvFILL(av) + 1; |
479 | PUSHi(maxarg); |
480 | } |
481 | RETURN; |
482 | } |
483 | |
484 | PP(pp_rv2hv) |
485 | { |
4e35701f |
486 | djSP; dTOPss; |
a0d0e21e |
487 | HV *hv; |
488 | |
489 | if (SvROK(sv)) { |
490 | wasref: |
491 | hv = (HV*)SvRV(sv); |
c750a3ec |
492 | if (SvTYPE(hv) != SVt_PVHV && SvTYPE(hv) != SVt_PVAV) |
a0d0e21e |
493 | DIE("Not a HASH reference"); |
533c011a |
494 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e |
495 | SETs((SV*)hv); |
496 | RETURN; |
497 | } |
498 | } |
499 | else { |
c750a3ec |
500 | if (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) { |
a0d0e21e |
501 | hv = (HV*)sv; |
533c011a |
502 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e |
503 | SETs((SV*)hv); |
504 | RETURN; |
505 | } |
506 | } |
507 | else { |
67955e0c |
508 | GV *gv; |
509 | |
a0d0e21e |
510 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 |
511 | char *sym; |
512 | |
a0d0e21e |
513 | if (SvGMAGICAL(sv)) { |
514 | mg_get(sv); |
515 | if (SvROK(sv)) |
516 | goto wasref; |
517 | } |
518 | if (!SvOK(sv)) { |
533c011a |
519 | if (PL_op->op_flags & OPf_REF || |
520 | PL_op->op_private & HINT_STRICT_REFS) |
a0d0e21e |
521 | DIE(no_usym, "a HASH"); |
3280af22 |
522 | if (PL_dowarn) |
d83e6520 |
523 | warn(warn_uninit); |
4633a7c4 |
524 | if (GIMME == G_ARRAY) { |
525 | SP--; |
526 | RETURN; |
527 | } |
a0d0e21e |
528 | RETSETUNDEF; |
529 | } |
3280af22 |
530 | sym = SvPV(sv,PL_na); |
533c011a |
531 | if (PL_op->op_private & HINT_STRICT_REFS) |
748a9306 |
532 | DIE(no_symref, sym, "a HASH"); |
67955e0c |
533 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVHV); |
534 | } else { |
535 | gv = (GV*)sv; |
a0d0e21e |
536 | } |
67955e0c |
537 | hv = GvHVn(gv); |
533c011a |
538 | if (PL_op->op_private & OPpLVAL_INTRO) |
67955e0c |
539 | hv = save_hash(gv); |
533c011a |
540 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e |
541 | SETs((SV*)hv); |
542 | RETURN; |
543 | } |
544 | } |
545 | } |
546 | |
547 | if (GIMME == G_ARRAY) { /* array wanted */ |
3280af22 |
548 | *PL_stack_sp = (SV*)hv; |
a0d0e21e |
549 | return do_kv(ARGS); |
550 | } |
551 | else { |
552 | dTARGET; |
4b154ab5 |
553 | if (SvTYPE(hv) == SVt_PVAV) |
554 | hv = avhv_keys((AV*)hv); |
46fc3d4c |
555 | if (HvFILL(hv)) |
556 | sv_setpvf(TARG, "%ld/%ld", |
557 | (long)HvFILL(hv), (long)HvMAX(hv) + 1); |
a0d0e21e |
558 | else |
559 | sv_setiv(TARG, 0); |
c750a3ec |
560 | |
a0d0e21e |
561 | SETTARG; |
562 | RETURN; |
563 | } |
564 | } |
565 | |
566 | PP(pp_aassign) |
567 | { |
4e35701f |
568 | djSP; |
3280af22 |
569 | SV **lastlelem = PL_stack_sp; |
570 | SV **lastrelem = PL_stack_base + POPMARK; |
571 | SV **firstrelem = PL_stack_base + POPMARK + 1; |
a0d0e21e |
572 | SV **firstlelem = lastrelem + 1; |
573 | |
574 | register SV **relem; |
575 | register SV **lelem; |
576 | |
577 | register SV *sv; |
578 | register AV *ary; |
579 | |
54310121 |
580 | I32 gimme; |
a0d0e21e |
581 | HV *hash; |
582 | I32 i; |
583 | int magic; |
584 | |
3280af22 |
585 | PL_delaymagic = DM_DELAY; /* catch simultaneous items */ |
a0d0e21e |
586 | |
587 | /* If there's a common identifier on both sides we have to take |
588 | * special care that assigning the identifier on the left doesn't |
589 | * clobber a value on the right that's used later in the list. |
590 | */ |
533c011a |
591 | if (PL_op->op_private & OPpASSIGN_COMMON) { |
a0d0e21e |
592 | for (relem = firstrelem; relem <= lastrelem; relem++) { |
593 | /*SUPPRESS 560*/ |
a1f49e72 |
594 | if (sv = *relem) { |
595 | TAINT_NOT; /* Each item is independent */ |
a0d0e21e |
596 | *relem = sv_mortalcopy(sv); |
a1f49e72 |
597 | } |
a0d0e21e |
598 | } |
599 | } |
600 | |
601 | relem = firstrelem; |
602 | lelem = firstlelem; |
603 | ary = Null(AV*); |
604 | hash = Null(HV*); |
605 | while (lelem <= lastlelem) { |
bbce6d69 |
606 | TAINT_NOT; /* Each item stands on its own, taintwise. */ |
a0d0e21e |
607 | sv = *lelem++; |
608 | switch (SvTYPE(sv)) { |
609 | case SVt_PVAV: |
610 | ary = (AV*)sv; |
748a9306 |
611 | magic = SvMAGICAL(ary) != 0; |
a0d0e21e |
612 | |
613 | av_clear(ary); |
7e42bd57 |
614 | av_extend(ary, lastrelem - relem); |
a0d0e21e |
615 | i = 0; |
616 | while (relem <= lastrelem) { /* gobble up all the rest */ |
5117ca91 |
617 | SV **didstore; |
a0d0e21e |
618 | sv = NEWSV(28,0); |
619 | assert(*relem); |
620 | sv_setsv(sv,*relem); |
621 | *(relem++) = sv; |
5117ca91 |
622 | didstore = av_store(ary,i++,sv); |
623 | if (magic) { |
fb73857a |
624 | if (SvSMAGICAL(sv)) |
625 | mg_set(sv); |
5117ca91 |
626 | if (!didstore) |
627 | SvREFCNT_dec(sv); |
628 | } |
bbce6d69 |
629 | TAINT_NOT; |
a0d0e21e |
630 | } |
631 | break; |
632 | case SVt_PVHV: { |
a0d0e21e |
633 | SV *tmpstr; |
634 | |
635 | hash = (HV*)sv; |
748a9306 |
636 | magic = SvMAGICAL(hash) != 0; |
a0d0e21e |
637 | hv_clear(hash); |
638 | |
639 | while (relem < lastrelem) { /* gobble up all the rest */ |
5117ca91 |
640 | HE *didstore; |
4633a7c4 |
641 | if (*relem) |
a0d0e21e |
642 | sv = *(relem++); |
4633a7c4 |
643 | else |
3280af22 |
644 | sv = &PL_sv_no, relem++; |
a0d0e21e |
645 | tmpstr = NEWSV(29,0); |
646 | if (*relem) |
647 | sv_setsv(tmpstr,*relem); /* value */ |
648 | *(relem++) = tmpstr; |
5117ca91 |
649 | didstore = hv_store_ent(hash,sv,tmpstr,0); |
650 | if (magic) { |
fb73857a |
651 | if (SvSMAGICAL(tmpstr)) |
652 | mg_set(tmpstr); |
5117ca91 |
653 | if (!didstore) |
654 | SvREFCNT_dec(tmpstr); |
655 | } |
bbce6d69 |
656 | TAINT_NOT; |
8e07c86e |
657 | } |
6a0deba8 |
658 | if (relem == lastrelem) { |
659 | if (*relem) { |
660 | HE *didstore; |
3280af22 |
661 | if (PL_dowarn) { |
6a0deba8 |
662 | if (relem == firstrelem && |
663 | SvROK(*relem) && |
664 | ( SvTYPE(SvRV(*relem)) == SVt_PVAV || |
665 | SvTYPE(SvRV(*relem)) == SVt_PVHV ) ) |
666 | warn("Reference found where even-sized list expected"); |
667 | else |
668 | warn("Odd number of elements in hash assignment"); |
669 | } |
670 | tmpstr = NEWSV(29,0); |
671 | didstore = hv_store_ent(hash,*relem,tmpstr,0); |
672 | if (magic) { |
673 | if (SvSMAGICAL(tmpstr)) |
674 | mg_set(tmpstr); |
675 | if (!didstore) |
676 | SvREFCNT_dec(tmpstr); |
677 | } |
678 | TAINT_NOT; |
679 | } |
680 | relem++; |
1930e939 |
681 | } |
a0d0e21e |
682 | } |
683 | break; |
684 | default: |
685 | if (SvTHINKFIRST(sv)) { |
3280af22 |
686 | if (SvREADONLY(sv) && PL_curcop != &PL_compiling) { |
d689ffdd |
687 | if (!SvIMMORTAL(sv)) |
a0d0e21e |
688 | DIE(no_modify); |
689 | if (relem <= lastrelem) |
690 | relem++; |
691 | break; |
692 | } |
693 | if (SvROK(sv)) |
694 | sv_unref(sv); |
695 | } |
696 | if (relem <= lastrelem) { |
697 | sv_setsv(sv, *relem); |
698 | *(relem++) = sv; |
699 | } |
700 | else |
3280af22 |
701 | sv_setsv(sv, &PL_sv_undef); |
a0d0e21e |
702 | SvSETMAGIC(sv); |
703 | break; |
704 | } |
705 | } |
3280af22 |
706 | if (PL_delaymagic & ~DM_DELAY) { |
707 | if (PL_delaymagic & DM_UID) { |
a0d0e21e |
708 | #ifdef HAS_SETRESUID |
b28d0864 |
709 | (void)setresuid(PL_uid,PL_euid,(Uid_t)-1); |
56febc5e |
710 | #else |
711 | # ifdef HAS_SETREUID |
3280af22 |
712 | (void)setreuid(PL_uid,PL_euid); |
56febc5e |
713 | # else |
714 | # ifdef HAS_SETRUID |
b28d0864 |
715 | if ((PL_delaymagic & DM_UID) == DM_RUID) { |
716 | (void)setruid(PL_uid); |
717 | PL_delaymagic &= ~DM_RUID; |
a0d0e21e |
718 | } |
56febc5e |
719 | # endif /* HAS_SETRUID */ |
720 | # ifdef HAS_SETEUID |
b28d0864 |
721 | if ((PL_delaymagic & DM_UID) == DM_EUID) { |
722 | (void)seteuid(PL_uid); |
723 | PL_delaymagic &= ~DM_EUID; |
a0d0e21e |
724 | } |
56febc5e |
725 | # endif /* HAS_SETEUID */ |
b28d0864 |
726 | if (PL_delaymagic & DM_UID) { |
727 | if (PL_uid != PL_euid) |
a0d0e21e |
728 | DIE("No setreuid available"); |
b28d0864 |
729 | (void)PerlProc_setuid(PL_uid); |
a0d0e21e |
730 | } |
56febc5e |
731 | # endif /* HAS_SETREUID */ |
732 | #endif /* HAS_SETRESUID */ |
3280af22 |
733 | PL_uid = (int)PerlProc_getuid(); |
734 | PL_euid = (int)PerlProc_geteuid(); |
a0d0e21e |
735 | } |
3280af22 |
736 | if (PL_delaymagic & DM_GID) { |
a0d0e21e |
737 | #ifdef HAS_SETRESGID |
b28d0864 |
738 | (void)setresgid(PL_gid,PL_egid,(Gid_t)-1); |
56febc5e |
739 | #else |
740 | # ifdef HAS_SETREGID |
3280af22 |
741 | (void)setregid(PL_gid,PL_egid); |
56febc5e |
742 | # else |
743 | # ifdef HAS_SETRGID |
b28d0864 |
744 | if ((PL_delaymagic & DM_GID) == DM_RGID) { |
745 | (void)setrgid(PL_gid); |
746 | PL_delaymagic &= ~DM_RGID; |
a0d0e21e |
747 | } |
56febc5e |
748 | # endif /* HAS_SETRGID */ |
749 | # ifdef HAS_SETEGID |
b28d0864 |
750 | if ((PL_delaymagic & DM_GID) == DM_EGID) { |
751 | (void)setegid(PL_gid); |
752 | PL_delaymagic &= ~DM_EGID; |
a0d0e21e |
753 | } |
56febc5e |
754 | # endif /* HAS_SETEGID */ |
b28d0864 |
755 | if (PL_delaymagic & DM_GID) { |
756 | if (PL_gid != PL_egid) |
a0d0e21e |
757 | DIE("No setregid available"); |
b28d0864 |
758 | (void)PerlProc_setgid(PL_gid); |
a0d0e21e |
759 | } |
56febc5e |
760 | # endif /* HAS_SETREGID */ |
761 | #endif /* HAS_SETRESGID */ |
3280af22 |
762 | PL_gid = (int)PerlProc_getgid(); |
763 | PL_egid = (int)PerlProc_getegid(); |
a0d0e21e |
764 | } |
3280af22 |
765 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
a0d0e21e |
766 | } |
3280af22 |
767 | PL_delaymagic = 0; |
54310121 |
768 | |
769 | gimme = GIMME_V; |
770 | if (gimme == G_VOID) |
771 | SP = firstrelem - 1; |
772 | else if (gimme == G_SCALAR) { |
773 | dTARGET; |
774 | SP = firstrelem; |
775 | SETi(lastrelem - firstrelem + 1); |
776 | } |
777 | else { |
a0d0e21e |
778 | if (ary || hash) |
779 | SP = lastrelem; |
780 | else |
781 | SP = firstrelem + (lastlelem - firstlelem); |
0c8c7a05 |
782 | lelem = firstlelem + (relem - firstrelem); |
5f05dabc |
783 | while (relem <= SP) |
3280af22 |
784 | *relem++ = (lelem <= lastlelem) ? *lelem++ : &PL_sv_undef; |
a0d0e21e |
785 | } |
54310121 |
786 | RETURN; |
a0d0e21e |
787 | } |
788 | |
8782bef2 |
789 | PP(pp_qr) |
790 | { |
791 | djSP; |
792 | register PMOP *pm = cPMOP; |
793 | SV *rv = sv_newmortal(); |
794 | SV *sv = newSVrv(rv, "Regexp"); |
795 | sv_magic(sv,(SV*)ReREFCNT_inc(pm->op_pmregexp),'r',0,0); |
796 | RETURNX(PUSHs(rv)); |
797 | } |
798 | |
a0d0e21e |
799 | PP(pp_match) |
800 | { |
4e35701f |
801 | djSP; dTARG; |
a0d0e21e |
802 | register PMOP *pm = cPMOP; |
803 | register char *t; |
804 | register char *s; |
805 | char *strend; |
806 | I32 global; |
807 | I32 safebase; |
808 | char *truebase; |
d9f97599 |
809 | register REGEXP *rx = pm->op_pmregexp; |
b3eb6a9b |
810 | bool rxtainted; |
a0d0e21e |
811 | I32 gimme = GIMME; |
812 | STRLEN len; |
748a9306 |
813 | I32 minmatch = 0; |
3280af22 |
814 | I32 oldsave = PL_savestack_ix; |
f86702cc |
815 | I32 update_minmatch = 1; |
c277df42 |
816 | SV *screamer; |
a0d0e21e |
817 | |
533c011a |
818 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e |
819 | TARG = POPs; |
820 | else { |
54b9620d |
821 | TARG = DEFSV; |
a0d0e21e |
822 | EXTEND(SP,1); |
823 | } |
c277df42 |
824 | PUTBACK; /* EVAL blocks need stack_sp. */ |
a0d0e21e |
825 | s = SvPV(TARG, len); |
826 | strend = s + len; |
827 | if (!s) |
828 | DIE("panic: do_match"); |
b3eb6a9b |
829 | rxtainted = ((pm->op_pmdynflags & PMdf_TAINTED) || |
3280af22 |
830 | (PL_tainted && (pm->op_pmflags & PMf_RETAINT))); |
9212bbba |
831 | TAINT_NOT; |
a0d0e21e |
832 | |
48c036b1 |
833 | if (pm->op_pmdynflags & PMdf_USED) { |
c277df42 |
834 | failure: |
a0d0e21e |
835 | if (gimme == G_ARRAY) |
836 | RETURN; |
837 | RETPUSHNO; |
838 | } |
839 | |
3280af22 |
840 | if (!rx->prelen && PL_curpm) { |
841 | pm = PL_curpm; |
d9f97599 |
842 | rx = pm->op_pmregexp; |
a0d0e21e |
843 | } |
d9f97599 |
844 | if (rx->minlen > len) goto failure; |
c277df42 |
845 | |
d9f97599 |
846 | screamer = ( (SvSCREAM(TARG) && rx->check_substr |
847 | && SvTYPE(rx->check_substr) == SVt_PVBM |
848 | && SvVALID(rx->check_substr)) |
c277df42 |
849 | ? TARG : Nullsv); |
a0d0e21e |
850 | truebase = t = s; |
851 | if (global = pm->op_pmflags & PMf_GLOBAL) { |
d9f97599 |
852 | rx->startp[0] = 0; |
a0d0e21e |
853 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
854 | MAGIC* mg = mg_find(TARG, 'g'); |
565764a8 |
855 | if (mg && mg->mg_len >= 0) { |
d9f97599 |
856 | rx->endp[0] = rx->startp[0] = s + mg->mg_len; |
748a9306 |
857 | minmatch = (mg->mg_flags & MGf_MINMATCH); |
f86702cc |
858 | update_minmatch = 0; |
748a9306 |
859 | } |
a0d0e21e |
860 | } |
861 | } |
d9f97599 |
862 | safebase = (((gimme == G_ARRAY) || global || !rx->nparens) |
3280af22 |
863 | && !PL_sawampersand); |
c277df42 |
864 | safebase = safebase ? 0 : REXEC_COPY_STR ; |
a0d0e21e |
865 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
3280af22 |
866 | SAVEINT(PL_multiline); |
867 | PL_multiline = pm->op_pmflags & PMf_MULTILINE; |
a0d0e21e |
868 | } |
869 | |
870 | play_it_again: |
d9f97599 |
871 | if (global && rx->startp[0]) { |
872 | t = s = rx->endp[0]; |
873 | if ((s + rx->minlen) > strend) |
a0d0e21e |
874 | goto nope; |
f86702cc |
875 | if (update_minmatch++) |
d9f97599 |
876 | minmatch = (s == rx->startp[0]); |
a0d0e21e |
877 | } |
d9f97599 |
878 | if (rx->check_substr) { |
879 | if (!(rx->reganch & ROPT_NOSCAN)) { /* Floating checkstring. */ |
c277df42 |
880 | if ( screamer ) { |
881 | I32 p = -1; |
882 | |
3280af22 |
883 | if (PL_screamfirst[BmRARE(rx->check_substr)] < 0) |
a0d0e21e |
884 | goto nope; |
d9f97599 |
885 | else if (!(s = screaminstr(TARG, rx->check_substr, |
886 | rx->check_offset_min, 0, &p, 0))) |
a0d0e21e |
887 | goto nope; |
d9f97599 |
888 | else if ((rx->reganch & ROPT_CHECK_ALL) |
3280af22 |
889 | && !PL_sawampersand && !SvTAIL(rx->check_substr)) |
a0d0e21e |
890 | goto yup; |
891 | } |
d9f97599 |
892 | else if (!(s = fbm_instr((unsigned char*)s + rx->check_offset_min, |
c277df42 |
893 | (unsigned char*)strend, |
411d5715 |
894 | rx->check_substr, 0))) |
a0d0e21e |
895 | goto nope; |
3280af22 |
896 | else if ((rx->reganch & ROPT_CHECK_ALL) && !PL_sawampersand) |
a0d0e21e |
897 | goto yup; |
ee027f1d |
898 | if (s && rx->check_offset_max < s - t) { |
d9f97599 |
899 | ++BmUSEFUL(rx->check_substr); |
900 | s -= rx->check_offset_max; |
a0d0e21e |
901 | } |
902 | else |
903 | s = t; |
904 | } |
c277df42 |
905 | /* Now checkstring is fixed, i.e. at fixed offset from the |
906 | beginning of match, and the match is anchored at s. */ |
3280af22 |
907 | else if (!PL_multiline) { /* Anchored near beginning of string. */ |
c277df42 |
908 | I32 slen; |
d9f97599 |
909 | if (*SvPVX(rx->check_substr) != s[rx->check_offset_min] |
910 | || ((slen = SvCUR(rx->check_substr)) > 1 |
911 | && memNE(SvPVX(rx->check_substr), |
912 | s + rx->check_offset_min, slen))) |
bbce6d69 |
913 | goto nope; |
a0d0e21e |
914 | } |
d9f97599 |
915 | if (!rx->naughty && --BmUSEFUL(rx->check_substr) < 0 |
916 | && rx->check_substr == rx->float_substr) { |
917 | SvREFCNT_dec(rx->check_substr); |
918 | rx->check_substr = Nullsv; /* opt is being useless */ |
919 | rx->float_substr = Nullsv; |
a0d0e21e |
920 | } |
921 | } |
15e52e56 |
922 | if (CALLREGEXEC(rx, s, strend, truebase, minmatch, |
c277df42 |
923 | screamer, NULL, safebase)) |
bbce6d69 |
924 | { |
3280af22 |
925 | PL_curpm = pm; |
a0d0e21e |
926 | if (pm->op_pmflags & PMf_ONCE) |
48c036b1 |
927 | pm->op_pmdynflags |= PMdf_USED; |
a0d0e21e |
928 | goto gotcha; |
929 | } |
930 | else |
931 | goto ret_no; |
932 | /*NOTREACHED*/ |
933 | |
934 | gotcha: |
72311751 |
935 | if (rxtainted) |
936 | RX_MATCH_TAINTED_on(rx); |
937 | TAINT_IF(RX_MATCH_TAINTED(rx)); |
a0d0e21e |
938 | if (gimme == G_ARRAY) { |
939 | I32 iters, i, len; |
940 | |
d9f97599 |
941 | iters = rx->nparens; |
a0d0e21e |
942 | if (global && !iters) |
943 | i = 1; |
944 | else |
945 | i = 0; |
c277df42 |
946 | SPAGAIN; /* EVAL blocks could move the stack. */ |
a0d0e21e |
947 | EXTEND(SP, iters + i); |
bbce6d69 |
948 | EXTEND_MORTAL(iters + i); |
a0d0e21e |
949 | for (i = !i; i <= iters; i++) { |
950 | PUSHs(sv_newmortal()); |
951 | /*SUPPRESS 560*/ |
d9f97599 |
952 | if ((s = rx->startp[i]) && rx->endp[i] ) { |
953 | len = rx->endp[i] - s; |
a0d0e21e |
954 | sv_setpvn(*SP, s, len); |
955 | } |
956 | } |
957 | if (global) { |
d9f97599 |
958 | truebase = rx->subbeg; |
959 | strend = rx->subend; |
960 | if (rx->startp[0] && rx->startp[0] == rx->endp[0]) |
961 | ++rx->endp[0]; |
c277df42 |
962 | PUTBACK; /* EVAL blocks may use stack */ |
a0d0e21e |
963 | goto play_it_again; |
964 | } |
f7e33566 |
965 | else if (!iters) |
bde848c5 |
966 | XPUSHs(&PL_sv_yes); |
4633a7c4 |
967 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
968 | RETURN; |
969 | } |
970 | else { |
971 | if (global) { |
972 | MAGIC* mg = 0; |
973 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) |
974 | mg = mg_find(TARG, 'g'); |
975 | if (!mg) { |
976 | sv_magic(TARG, (SV*)0, 'g', Nullch, 0); |
977 | mg = mg_find(TARG, 'g'); |
978 | } |
d9f97599 |
979 | if (rx->startp[0]) { |
980 | mg->mg_len = rx->endp[0] - rx->subbeg; |
981 | if (rx->startp[0] == rx->endp[0]) |
748a9306 |
982 | mg->mg_flags |= MGf_MINMATCH; |
983 | else |
984 | mg->mg_flags &= ~MGf_MINMATCH; |
985 | } |
a0d0e21e |
986 | } |
4633a7c4 |
987 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
988 | RETPUSHYES; |
989 | } |
990 | |
c277df42 |
991 | yup: /* Confirmed by check_substr */ |
72311751 |
992 | if (rxtainted) |
993 | RX_MATCH_TAINTED_on(rx); |
994 | TAINT_IF(RX_MATCH_TAINTED(rx)); |
d9f97599 |
995 | ++BmUSEFUL(rx->check_substr); |
3280af22 |
996 | PL_curpm = pm; |
a0d0e21e |
997 | if (pm->op_pmflags & PMf_ONCE) |
48c036b1 |
998 | pm->op_pmdynflags |= PMdf_USED; |
d9f97599 |
999 | Safefree(rx->subbase); |
1000 | rx->subbase = Nullch; |
a0d0e21e |
1001 | if (global) { |
d9f97599 |
1002 | rx->subbeg = truebase; |
1003 | rx->subend = strend; |
1004 | rx->startp[0] = s; |
1005 | rx->endp[0] = s + SvCUR(rx->check_substr); |
a0d0e21e |
1006 | goto gotcha; |
1007 | } |
3280af22 |
1008 | if (PL_sawampersand) { |
a0d0e21e |
1009 | char *tmps; |
1010 | |
d9f97599 |
1011 | tmps = rx->subbase = savepvn(t, strend-t); |
1012 | rx->subbeg = tmps; |
1013 | rx->subend = tmps + (strend-t); |
1014 | tmps = rx->startp[0] = tmps + (s - t); |
1015 | rx->endp[0] = tmps + SvCUR(rx->check_substr); |
a0d0e21e |
1016 | } |
4633a7c4 |
1017 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1018 | RETPUSHYES; |
1019 | |
1020 | nope: |
d9f97599 |
1021 | if (rx->check_substr) |
1022 | ++BmUSEFUL(rx->check_substr); |
a0d0e21e |
1023 | |
1024 | ret_no: |
c90c0ff4 |
1025 | if (global && !(pm->op_pmflags & PMf_CONTINUE)) { |
a0d0e21e |
1026 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
1027 | MAGIC* mg = mg_find(TARG, 'g'); |
1028 | if (mg) |
565764a8 |
1029 | mg->mg_len = -1; |
a0d0e21e |
1030 | } |
1031 | } |
4633a7c4 |
1032 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1033 | if (gimme == G_ARRAY) |
1034 | RETURN; |
1035 | RETPUSHNO; |
1036 | } |
1037 | |
1038 | OP * |
8ac85365 |
1039 | do_readline(void) |
a0d0e21e |
1040 | { |
1041 | dSP; dTARGETSTACKED; |
1042 | register SV *sv; |
1043 | STRLEN tmplen = 0; |
1044 | STRLEN offset; |
760ac839 |
1045 | PerlIO *fp; |
3280af22 |
1046 | register IO *io = GvIO(PL_last_in_gv); |
533c011a |
1047 | register I32 type = PL_op->op_type; |
54310121 |
1048 | I32 gimme = GIMME_V; |
e79b0511 |
1049 | MAGIC *mg; |
a0d0e21e |
1050 | |
3280af22 |
1051 | if (SvRMAGICAL(PL_last_in_gv) && (mg = mg_find((SV*)PL_last_in_gv, 'q'))) { |
e79b0511 |
1052 | PUSHMARK(SP); |
1053 | XPUSHs(mg->mg_obj); |
1054 | PUTBACK; |
1055 | ENTER; |
54310121 |
1056 | perl_call_method("READLINE", gimme); |
e79b0511 |
1057 | LEAVE; |
1058 | SPAGAIN; |
54310121 |
1059 | if (gimme == G_SCALAR) |
1060 | SvSetMagicSV_nosteal(TARG, TOPs); |
e79b0511 |
1061 | RETURN; |
1062 | } |
a0d0e21e |
1063 | fp = Nullfp; |
1064 | if (io) { |
1065 | fp = IoIFP(io); |
1066 | if (!fp) { |
1067 | if (IoFLAGS(io) & IOf_ARGV) { |
1068 | if (IoFLAGS(io) & IOf_START) { |
1069 | IoFLAGS(io) &= ~IOf_START; |
1070 | IoLINES(io) = 0; |
3280af22 |
1071 | if (av_len(GvAVn(PL_last_in_gv)) < 0) { |
9d116dd7 |
1072 | do_open(PL_last_in_gv,"-",1,FALSE,O_RDONLY,0,Nullfp); |
3280af22 |
1073 | sv_setpvn(GvSV(PL_last_in_gv), "-", 1); |
1074 | SvSETMAGIC(GvSV(PL_last_in_gv)); |
a2008d6d |
1075 | fp = IoIFP(io); |
1076 | goto have_fp; |
a0d0e21e |
1077 | } |
1078 | } |
3280af22 |
1079 | fp = nextargv(PL_last_in_gv); |
a0d0e21e |
1080 | if (!fp) { /* Note: fp != IoIFP(io) */ |
3280af22 |
1081 | (void)do_close(PL_last_in_gv, FALSE); /* now it does*/ |
a0d0e21e |
1082 | IoFLAGS(io) |= IOf_START; |
1083 | } |
1084 | } |
1085 | else if (type == OP_GLOB) { |
1086 | SV *tmpcmd = NEWSV(55, 0); |
1087 | SV *tmpglob = POPs; |
1088 | ENTER; |
1089 | SAVEFREESV(tmpcmd); |
1090 | #ifdef VMS /* expand the wildcards right here, rather than opening a pipe, */ |
1091 | /* since spawning off a process is a real performance hit */ |
1092 | { |
1093 | #include <descrip.h> |
1094 | #include <lib$routines.h> |
1095 | #include <nam.h> |
1096 | #include <rmsdef.h> |
1097 | char rslt[NAM$C_MAXRSS+1+sizeof(unsigned short int)] = {'\0','\0'}; |
1098 | char vmsspec[NAM$C_MAXRSS+1]; |
1099 | char *rstr = rslt + sizeof(unsigned short int), *begin, *end, *cp; |
1100 | char tmpfnam[L_tmpnam] = "SYS$SCRATCH:"; |
1101 | $DESCRIPTOR(dfltdsc,"SYS$DISK:[]*.*;"); |
760ac839 |
1102 | PerlIO *tmpfp; |
a0d0e21e |
1103 | STRLEN i; |
1104 | struct dsc$descriptor_s wilddsc |
1105 | = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0}; |
1106 | struct dsc$descriptor_vs rsdsc |
1107 | = {sizeof rslt, DSC$K_DTYPE_VT, DSC$K_CLASS_VS, rslt}; |
1108 | unsigned long int cxt = 0, sts = 0, ok = 1, hasdir = 0, hasver = 0, isunix = 0; |
1109 | |
1110 | /* We could find out if there's an explicit dev/dir or version |
1111 | by peeking into lib$find_file's internal context at |
1112 | ((struct NAM *)((struct FAB *)cxt)->fab$l_nam)->nam$l_fnb |
1113 | but that's unsupported, so I don't want to do it now and |
1114 | have it bite someone in the future. */ |
6ad3d225 |
1115 | strcat(tmpfnam,PerlLIO_tmpnam(NULL)); |
a0d0e21e |
1116 | cp = SvPV(tmpglob,i); |
1117 | for (; i; i--) { |
1118 | if (cp[i] == ';') hasver = 1; |
1119 | if (cp[i] == '.') { |
1120 | if (sts) hasver = 1; |
1121 | else sts = 1; |
1122 | } |
1123 | if (cp[i] == '/') { |
1124 | hasdir = isunix = 1; |
1125 | break; |
748a9306 |
1126 | } |
a0d0e21e |
1127 | if (cp[i] == ']' || cp[i] == '>' || cp[i] == ':') { |
1128 | hasdir = 1; |
1129 | break; |
1130 | } |
1131 | } |
760ac839 |
1132 | if ((tmpfp = PerlIO_open(tmpfnam,"w+","fop=dlt")) != NULL) { |
09b7f37c |
1133 | Stat_t st; |
c6ed36e1 |
1134 | if (!PerlLIO_stat(SvPVX(tmpglob),&st) && S_ISDIR(st.st_mode)) |
09b7f37c |
1135 | ok = ((wilddsc.dsc$a_pointer = tovmspath(SvPVX(tmpglob),vmsspec)) != NULL); |
1136 | else ok = ((wilddsc.dsc$a_pointer = tovmsspec(SvPVX(tmpglob),vmsspec)) != NULL); |
a0d0e21e |
1137 | if (ok) wilddsc.dsc$w_length = (unsigned short int) strlen(wilddsc.dsc$a_pointer); |
1138 | while (ok && ((sts = lib$find_file(&wilddsc,&rsdsc,&cxt, |
1139 | &dfltdsc,NULL,NULL,NULL))&1)) { |
1140 | end = rstr + (unsigned long int) *rslt; |
1141 | if (!hasver) while (*end != ';') end--; |
1142 | *(end++) = '\n'; *end = '\0'; |
1143 | for (cp = rstr; *cp; cp++) *cp = _tolower(*cp); |
1144 | if (hasdir) { |
f86702cc |
1145 | if (isunix) trim_unixpath(rstr,SvPVX(tmpglob),1); |
a0d0e21e |
1146 | begin = rstr; |
1147 | } |
1148 | else { |
1149 | begin = end; |
1150 | while (*(--begin) != ']' && *begin != '>') ; |
1151 | ++begin; |
1152 | } |
760ac839 |
1153 | ok = (PerlIO_puts(tmpfp,begin) != EOF); |
a0d0e21e |
1154 | } |
1155 | if (cxt) (void)lib$find_file_end(&cxt); |
748a9306 |
1156 | if (ok && sts != RMS$_NMF && |
1157 | sts != RMS$_DNF && sts != RMS$_FNF) ok = 0; |
a0d0e21e |
1158 | if (!ok) { |
c07a80fd |
1159 | if (!(sts & 1)) { |
1160 | SETERRNO((sts == RMS$_SYN ? EINVAL : EVMSERR),sts); |
1161 | } |
760ac839 |
1162 | PerlIO_close(tmpfp); |
a0d0e21e |
1163 | fp = NULL; |
1164 | } |
1165 | else { |
760ac839 |
1166 | PerlIO_rewind(tmpfp); |
a0d0e21e |
1167 | IoTYPE(io) = '<'; |
1168 | IoIFP(io) = fp = tmpfp; |
1e422769 |
1169 | IoFLAGS(io) &= ~IOf_UNTAINT; /* maybe redundant */ |
a0d0e21e |
1170 | } |
1171 | } |
1172 | } |
1173 | #else /* !VMS */ |
1174 | #ifdef DOSISH |
67955e0c |
1175 | #ifdef OS2 |
1176 | sv_setpv(tmpcmd, "for a in "); |
1177 | sv_catsv(tmpcmd, tmpglob); |
1178 | sv_catpv(tmpcmd, "; do echo \"$a\\0\\c\"; done |"); |
1179 | #else |
39e571d4 |
1180 | #ifdef DJGPP |
1181 | sv_setpv(tmpcmd, "/dev/dosglob/"); /* File System Extension */ |
1182 | sv_catsv(tmpcmd, tmpglob); |
1183 | #else |
a0d0e21e |
1184 | sv_setpv(tmpcmd, "perlglob "); |
1185 | sv_catsv(tmpcmd, tmpglob); |
1186 | sv_catpv(tmpcmd, " |"); |
39e571d4 |
1187 | #endif /* !DJGPP */ |
67955e0c |
1188 | #endif /* !OS2 */ |
1189 | #else /* !DOSISH */ |
1190 | #if defined(CSH) |
3280af22 |
1191 | sv_setpvn(tmpcmd, PL_cshname, PL_cshlen); |
a0d0e21e |
1192 | sv_catpv(tmpcmd, " -cf 'set nonomatch; glob "); |
1193 | sv_catsv(tmpcmd, tmpglob); |
16d20bd9 |
1194 | sv_catpv(tmpcmd, "' 2>/dev/null |"); |
a0d0e21e |
1195 | #else |
1196 | sv_setpv(tmpcmd, "echo "); |
1197 | sv_catsv(tmpcmd, tmpglob); |
1198 | #if 'z' - 'a' == 25 |
1199 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\012\\012\\012\\012'|"); |
1200 | #else |
1201 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\n\\n\\n\\n'|"); |
1202 | #endif |
1203 | #endif /* !CSH */ |
67955e0c |
1204 | #endif /* !DOSISH */ |
3280af22 |
1205 | (void)do_open(PL_last_in_gv, SvPVX(tmpcmd), SvCUR(tmpcmd), |
9d116dd7 |
1206 | FALSE, O_RDONLY, 0, Nullfp); |
a0d0e21e |
1207 | fp = IoIFP(io); |
1208 | #endif /* !VMS */ |
1209 | LEAVE; |
1210 | } |
1211 | } |
1212 | else if (type == OP_GLOB) |
1213 | SP--; |
1214 | } |
1215 | if (!fp) { |
3280af22 |
1216 | if (PL_dowarn && io && !(IoFLAGS(io) & IOf_START)) |
1217 | warn("Read on closed filehandle <%s>", GvENAME(PL_last_in_gv)); |
54310121 |
1218 | if (gimme == G_SCALAR) { |
a0d0e21e |
1219 | (void)SvOK_off(TARG); |
1220 | PUSHTARG; |
1221 | } |
1222 | RETURN; |
1223 | } |
a2008d6d |
1224 | have_fp: |
54310121 |
1225 | if (gimme == G_SCALAR) { |
a0d0e21e |
1226 | sv = TARG; |
9607fc9c |
1227 | if (SvROK(sv)) |
1228 | sv_unref(sv); |
a0d0e21e |
1229 | (void)SvUPGRADE(sv, SVt_PV); |
1230 | tmplen = SvLEN(sv); /* remember if already alloced */ |
1231 | if (!tmplen) |
1232 | Sv_Grow(sv, 80); /* try short-buffering it */ |
1233 | if (type == OP_RCATLINE) |
1234 | offset = SvCUR(sv); |
1235 | else |
1236 | offset = 0; |
1237 | } |
54310121 |
1238 | else { |
1239 | sv = sv_2mortal(NEWSV(57, 80)); |
1240 | offset = 0; |
1241 | } |
a0d0e21e |
1242 | for (;;) { |
1243 | if (!sv_gets(sv, fp, offset)) { |
760ac839 |
1244 | PerlIO_clearerr(fp); |
a0d0e21e |
1245 | if (IoFLAGS(io) & IOf_ARGV) { |
3280af22 |
1246 | fp = nextargv(PL_last_in_gv); |
a0d0e21e |
1247 | if (fp) |
1248 | continue; |
3280af22 |
1249 | (void)do_close(PL_last_in_gv, FALSE); |
a0d0e21e |
1250 | IoFLAGS(io) |= IOf_START; |
1251 | } |
1252 | else if (type == OP_GLOB) { |
f94b9f70 |
1253 | if (!do_close(PL_last_in_gv, FALSE)) |
5cd24f17 |
1254 | warn("internal error: glob failed"); |
a0d0e21e |
1255 | } |
54310121 |
1256 | if (gimme == G_SCALAR) { |
a0d0e21e |
1257 | (void)SvOK_off(TARG); |
1258 | PUSHTARG; |
1259 | } |
1260 | RETURN; |
1261 | } |
bbce6d69 |
1262 | /* This should not be marked tainted if the fp is marked clean */ |
1263 | if (!(IoFLAGS(io) & IOf_UNTAINT)) { |
1264 | TAINT; |
1265 | SvTAINTED_on(sv); |
1266 | } |
a0d0e21e |
1267 | IoLINES(io)++; |
71be2cbc |
1268 | SvSETMAGIC(sv); |
a0d0e21e |
1269 | XPUSHs(sv); |
a0d0e21e |
1270 | if (type == OP_GLOB) { |
1271 | char *tmps; |
1272 | |
3280af22 |
1273 | if (SvCUR(sv) > 0 && SvCUR(PL_rs) > 0) { |
c07a80fd |
1274 | tmps = SvEND(sv) - 1; |
3280af22 |
1275 | if (*tmps == *SvPVX(PL_rs)) { |
c07a80fd |
1276 | *tmps = '\0'; |
1277 | SvCUR(sv)--; |
1278 | } |
1279 | } |
a0d0e21e |
1280 | for (tmps = SvPVX(sv); *tmps; tmps++) |
1281 | if (!isALPHA(*tmps) && !isDIGIT(*tmps) && |
1282 | strchr("$&*(){}[]'\";\\|?<>~`", *tmps)) |
1283 | break; |
3280af22 |
1284 | if (*tmps && PerlLIO_stat(SvPVX(sv), &PL_statbuf) < 0) { |
a0d0e21e |
1285 | (void)POPs; /* Unmatched wildcard? Chuck it... */ |
1286 | continue; |
1287 | } |
1288 | } |
54310121 |
1289 | if (gimme == G_ARRAY) { |
a0d0e21e |
1290 | if (SvLEN(sv) - SvCUR(sv) > 20) { |
1291 | SvLEN_set(sv, SvCUR(sv)+1); |
1292 | Renew(SvPVX(sv), SvLEN(sv), char); |
1293 | } |
1294 | sv = sv_2mortal(NEWSV(58, 80)); |
1295 | continue; |
1296 | } |
54310121 |
1297 | else if (gimme == G_SCALAR && !tmplen && SvLEN(sv) - SvCUR(sv) > 80) { |
a0d0e21e |
1298 | /* try to reclaim a bit of scalar space (only on 1st alloc) */ |
1299 | if (SvCUR(sv) < 60) |
1300 | SvLEN_set(sv, 80); |
1301 | else |
1302 | SvLEN_set(sv, SvCUR(sv)+40); /* allow some slop */ |
1303 | Renew(SvPVX(sv), SvLEN(sv), char); |
1304 | } |
1305 | RETURN; |
1306 | } |
1307 | } |
1308 | |
1309 | PP(pp_enter) |
1310 | { |
4e35701f |
1311 | djSP; |
c09156bb |
1312 | register PERL_CONTEXT *cx; |
533c011a |
1313 | I32 gimme = OP_GIMME(PL_op, -1); |
a0d0e21e |
1314 | |
54310121 |
1315 | if (gimme == -1) { |
1316 | if (cxstack_ix >= 0) |
1317 | gimme = cxstack[cxstack_ix].blk_gimme; |
1318 | else |
1319 | gimme = G_SCALAR; |
1320 | } |
a0d0e21e |
1321 | |
1322 | ENTER; |
1323 | |
1324 | SAVETMPS; |
924508f0 |
1325 | PUSHBLOCK(cx, CXt_BLOCK, SP); |
a0d0e21e |
1326 | |
1327 | RETURN; |
1328 | } |
1329 | |
1330 | PP(pp_helem) |
1331 | { |
4e35701f |
1332 | djSP; |
760ac839 |
1333 | HE* he; |
ae77835f |
1334 | SV **svp; |
a0d0e21e |
1335 | SV *keysv = POPs; |
a0d0e21e |
1336 | HV *hv = (HV*)POPs; |
533c011a |
1337 | U32 lval = PL_op->op_flags & OPf_MOD; |
1338 | U32 defer = PL_op->op_private & OPpLVAL_DEFER; |
be6c24e0 |
1339 | SV *sv; |
a0d0e21e |
1340 | |
ae77835f |
1341 | if (SvTYPE(hv) == SVt_PVHV) { |
1342 | he = hv_fetch_ent(hv, keysv, lval && !defer, 0); |
97fcbf96 |
1343 | svp = he ? &HeVAL(he) : 0; |
ae77835f |
1344 | } |
1345 | else if (SvTYPE(hv) == SVt_PVAV) { |
0ebe0038 |
1346 | if (PL_op->op_private & OPpLVAL_INTRO) |
1347 | DIE("Can't localize pseudo-hash element"); |
97fcbf96 |
1348 | svp = avhv_fetch_ent((AV*)hv, keysv, lval && !defer, 0); |
ae77835f |
1349 | } |
c750a3ec |
1350 | else { |
a0d0e21e |
1351 | RETPUSHUNDEF; |
c750a3ec |
1352 | } |
a0d0e21e |
1353 | if (lval) { |
3280af22 |
1354 | if (!svp || *svp == &PL_sv_undef) { |
68dc0745 |
1355 | SV* lv; |
1356 | SV* key2; |
1357 | if (!defer) |
3280af22 |
1358 | DIE(no_helem, SvPV(keysv, PL_na)); |
68dc0745 |
1359 | lv = sv_newmortal(); |
1360 | sv_upgrade(lv, SVt_PVLV); |
1361 | LvTYPE(lv) = 'y'; |
1362 | sv_magic(lv, key2 = newSVsv(keysv), 'y', Nullch, 0); |
1363 | SvREFCNT_dec(key2); /* sv_magic() increments refcount */ |
1364 | LvTARG(lv) = SvREFCNT_inc(hv); |
1365 | LvTARGLEN(lv) = 1; |
1366 | PUSHs(lv); |
1367 | RETURN; |
1368 | } |
533c011a |
1369 | if (PL_op->op_private & OPpLVAL_INTRO) { |
ae77835f |
1370 | if (HvNAME(hv) && isGV(*svp)) |
533c011a |
1371 | save_gp((GV*)*svp, !(PL_op->op_flags & OPf_SPECIAL)); |
5f05dabc |
1372 | else |
161b7d16 |
1373 | save_helem(hv, keysv, svp); |
5f05dabc |
1374 | } |
533c011a |
1375 | else if (PL_op->op_private & OPpDEREF) |
1376 | vivify_ref(*svp, PL_op->op_private & OPpDEREF); |
a0d0e21e |
1377 | } |
3280af22 |
1378 | sv = (svp ? *svp : &PL_sv_undef); |
be6c24e0 |
1379 | /* This makes C<local $tied{foo} = $tied{foo}> possible. |
1380 | * Pushing the magical RHS on to the stack is useless, since |
1381 | * that magic is soon destined to be misled by the local(), |
1382 | * and thus the later pp_sassign() will fail to mg_get() the |
1383 | * old value. This should also cure problems with delayed |
1384 | * mg_get()s. GSAR 98-07-03 */ |
1385 | if (!lval && SvGMAGICAL(sv)) |
1386 | sv = sv_mortalcopy(sv); |
1387 | PUSHs(sv); |
a0d0e21e |
1388 | RETURN; |
1389 | } |
1390 | |
1391 | PP(pp_leave) |
1392 | { |
4e35701f |
1393 | djSP; |
c09156bb |
1394 | register PERL_CONTEXT *cx; |
a0d0e21e |
1395 | register SV **mark; |
1396 | SV **newsp; |
1397 | PMOP *newpm; |
1398 | I32 gimme; |
1399 | |
533c011a |
1400 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e |
1401 | cx = &cxstack[cxstack_ix]; |
3280af22 |
1402 | cx->blk_oldpm = PL_curpm; /* fake block should preserve $1 et al */ |
a0d0e21e |
1403 | } |
1404 | |
1405 | POPBLOCK(cx,newpm); |
1406 | |
533c011a |
1407 | gimme = OP_GIMME(PL_op, -1); |
54310121 |
1408 | if (gimme == -1) { |
1409 | if (cxstack_ix >= 0) |
1410 | gimme = cxstack[cxstack_ix].blk_gimme; |
1411 | else |
1412 | gimme = G_SCALAR; |
1413 | } |
a0d0e21e |
1414 | |
a1f49e72 |
1415 | TAINT_NOT; |
54310121 |
1416 | if (gimme == G_VOID) |
1417 | SP = newsp; |
1418 | else if (gimme == G_SCALAR) { |
1419 | MARK = newsp + 1; |
1420 | if (MARK <= SP) |
1421 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) |
1422 | *MARK = TOPs; |
1423 | else |
1424 | *MARK = sv_mortalcopy(TOPs); |
a0d0e21e |
1425 | else { |
54310121 |
1426 | MEXTEND(mark,0); |
3280af22 |
1427 | *MARK = &PL_sv_undef; |
a0d0e21e |
1428 | } |
54310121 |
1429 | SP = MARK; |
a0d0e21e |
1430 | } |
54310121 |
1431 | else if (gimme == G_ARRAY) { |
a1f49e72 |
1432 | /* in case LEAVE wipes old return values */ |
1433 | for (mark = newsp + 1; mark <= SP; mark++) { |
1434 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) { |
a0d0e21e |
1435 | *mark = sv_mortalcopy(*mark); |
a1f49e72 |
1436 | TAINT_NOT; /* Each item is independent */ |
1437 | } |
1438 | } |
a0d0e21e |
1439 | } |
3280af22 |
1440 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e |
1441 | |
1442 | LEAVE; |
1443 | |
1444 | RETURN; |
1445 | } |
1446 | |
1447 | PP(pp_iter) |
1448 | { |
4e35701f |
1449 | djSP; |
c09156bb |
1450 | register PERL_CONTEXT *cx; |
5f05dabc |
1451 | SV* sv; |
4633a7c4 |
1452 | AV* av; |
a0d0e21e |
1453 | |
924508f0 |
1454 | EXTEND(SP, 1); |
a0d0e21e |
1455 | cx = &cxstack[cxstack_ix]; |
1456 | if (cx->cx_type != CXt_LOOP) |
1457 | DIE("panic: pp_iter"); |
1458 | |
4633a7c4 |
1459 | av = cx->blk_loop.iterary; |
89ea2908 |
1460 | if (SvTYPE(av) != SVt_PVAV) { |
1461 | /* iterate ($min .. $max) */ |
1462 | if (cx->blk_loop.iterlval) { |
1463 | /* string increment */ |
1464 | register SV* cur = cx->blk_loop.iterlval; |
1465 | STRLEN maxlen; |
1466 | char *max = SvPV((SV*)av, maxlen); |
1467 | if (!SvNIOK(cur) && SvCUR(cur) <= maxlen) { |
eaa5c2d6 |
1468 | #ifndef USE_THREADS /* don't risk potential race */ |
39ca2bb7 |
1469 | if (SvREFCNT(*cx->blk_loop.itervar) == 1 |
1470 | && !SvMAGICAL(*cx->blk_loop.itervar)) |
1471 | { |
eaa5c2d6 |
1472 | /* safe to reuse old SV */ |
1473 | sv_setsv(*cx->blk_loop.itervar, cur); |
1474 | } |
1475 | else |
1476 | #endif |
1477 | { |
1478 | /* we need a fresh SV every time so that loop body sees a |
1479 | * completely new SV for closures/references to work as |
1480 | * they used to */ |
1481 | SvREFCNT_dec(*cx->blk_loop.itervar); |
1482 | *cx->blk_loop.itervar = newSVsv(cur); |
1483 | } |
89ea2908 |
1484 | if (strEQ(SvPVX(cur), max)) |
1485 | sv_setiv(cur, 0); /* terminate next time */ |
1486 | else |
1487 | sv_inc(cur); |
1488 | RETPUSHYES; |
1489 | } |
1490 | RETPUSHNO; |
1491 | } |
1492 | /* integer increment */ |
1493 | if (cx->blk_loop.iterix > cx->blk_loop.itermax) |
1494 | RETPUSHNO; |
7f61b687 |
1495 | |
eaa5c2d6 |
1496 | #ifndef USE_THREADS /* don't risk potential race */ |
39ca2bb7 |
1497 | if (SvREFCNT(*cx->blk_loop.itervar) == 1 |
1498 | && !SvMAGICAL(*cx->blk_loop.itervar)) |
1499 | { |
eaa5c2d6 |
1500 | /* safe to reuse old SV */ |
1501 | sv_setiv(*cx->blk_loop.itervar, cx->blk_loop.iterix++); |
1502 | } |
1503 | else |
1504 | #endif |
1505 | { |
1506 | /* we need a fresh SV every time so that loop body sees a |
1507 | * completely new SV for closures/references to work as they |
1508 | * used to */ |
1509 | SvREFCNT_dec(*cx->blk_loop.itervar); |
1510 | *cx->blk_loop.itervar = newSViv(cx->blk_loop.iterix++); |
1511 | } |
89ea2908 |
1512 | RETPUSHYES; |
1513 | } |
1514 | |
1515 | /* iterate array */ |
3280af22 |
1516 | if (cx->blk_loop.iterix >= (av == PL_curstack ? cx->blk_oldsp : AvFILL(av))) |
4633a7c4 |
1517 | RETPUSHNO; |
a0d0e21e |
1518 | |
7a4c00b4 |
1519 | SvREFCNT_dec(*cx->blk_loop.itervar); |
a0d0e21e |
1520 | |
93965878 |
1521 | if (sv = (SvMAGICAL(av)) |
1522 | ? *av_fetch(av, ++cx->blk_loop.iterix, FALSE) |
1523 | : AvARRAY(av)[++cx->blk_loop.iterix]) |
a0d0e21e |
1524 | SvTEMP_off(sv); |
a0d0e21e |
1525 | else |
3280af22 |
1526 | sv = &PL_sv_undef; |
1527 | if (av != PL_curstack && SvIMMORTAL(sv)) { |
5f05dabc |
1528 | SV *lv = cx->blk_loop.iterlval; |
71be2cbc |
1529 | if (lv && SvREFCNT(lv) > 1) { |
1530 | SvREFCNT_dec(lv); |
1531 | lv = Nullsv; |
1532 | } |
5f05dabc |
1533 | if (lv) |
1534 | SvREFCNT_dec(LvTARG(lv)); |
1535 | else { |
68dc0745 |
1536 | lv = cx->blk_loop.iterlval = NEWSV(26, 0); |
5f05dabc |
1537 | sv_upgrade(lv, SVt_PVLV); |
5f05dabc |
1538 | LvTYPE(lv) = 'y'; |
68dc0745 |
1539 | sv_magic(lv, Nullsv, 'y', Nullch, 0); |
5f05dabc |
1540 | } |
1541 | LvTARG(lv) = SvREFCNT_inc(av); |
1542 | LvTARGOFF(lv) = cx->blk_loop.iterix; |
8ac85365 |
1543 | LvTARGLEN(lv) = (UV) -1; |
5f05dabc |
1544 | sv = (SV*)lv; |
1545 | } |
a0d0e21e |
1546 | |
7a4c00b4 |
1547 | *cx->blk_loop.itervar = SvREFCNT_inc(sv); |
a0d0e21e |
1548 | RETPUSHYES; |
1549 | } |
1550 | |
1551 | PP(pp_subst) |
1552 | { |
4e35701f |
1553 | djSP; dTARG; |
a0d0e21e |
1554 | register PMOP *pm = cPMOP; |
1555 | PMOP *rpm = pm; |
1556 | register SV *dstr; |
1557 | register char *s; |
1558 | char *strend; |
1559 | register char *m; |
1560 | char *c; |
1561 | register char *d; |
1562 | STRLEN clen; |
1563 | I32 iters = 0; |
1564 | I32 maxiters; |
1565 | register I32 i; |
1566 | bool once; |
71be2cbc |
1567 | bool rxtainted; |
a0d0e21e |
1568 | char *orig; |
1569 | I32 safebase; |
d9f97599 |
1570 | register REGEXP *rx = pm->op_pmregexp; |
a0d0e21e |
1571 | STRLEN len; |
1572 | int force_on_match = 0; |
3280af22 |
1573 | I32 oldsave = PL_savestack_ix; |
c277df42 |
1574 | I32 update_minmatch = 1; |
1575 | SV *screamer; |
a0d0e21e |
1576 | |
5cd24f17 |
1577 | /* known replacement string? */ |
1578 | dstr = (pm->op_pmflags & PMf_CONST) ? POPs : Nullsv; |
533c011a |
1579 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e |
1580 | TARG = POPs; |
1581 | else { |
54b9620d |
1582 | TARG = DEFSV; |
a0d0e21e |
1583 | EXTEND(SP,1); |
8ec5e241 |
1584 | } |
68dc0745 |
1585 | if (SvREADONLY(TARG) |
1586 | || (SvTYPE(TARG) > SVt_PVLV |
1587 | && !(SvTYPE(TARG) == SVt_PVGV && SvFAKE(TARG)))) |
1588 | croak(no_modify); |
8ec5e241 |
1589 | PUTBACK; |
1590 | |
a0d0e21e |
1591 | s = SvPV(TARG, len); |
68dc0745 |
1592 | if (!SvPOKp(TARG) || SvTYPE(TARG) == SVt_PVGV) |
a0d0e21e |
1593 | force_on_match = 1; |
b3eb6a9b |
1594 | rxtainted = ((pm->op_pmdynflags & PMdf_TAINTED) || |
3280af22 |
1595 | (PL_tainted && (pm->op_pmflags & PMf_RETAINT))); |
1596 | if (PL_tainted) |
b3eb6a9b |
1597 | rxtainted |= 2; |
9212bbba |
1598 | TAINT_NOT; |
a0d0e21e |
1599 | |
1600 | force_it: |
1601 | if (!pm || !s) |
1602 | DIE("panic: do_subst"); |
1603 | |
1604 | strend = s + len; |
2beec16e |
1605 | maxiters = 2*(strend - s) + 10; /* We can match twice at each |
1606 | position, once with zero-length, |
1607 | second time with non-zero. */ |
a0d0e21e |
1608 | |
3280af22 |
1609 | if (!rx->prelen && PL_curpm) { |
1610 | pm = PL_curpm; |
d9f97599 |
1611 | rx = pm->op_pmregexp; |
a0d0e21e |
1612 | } |
d9f97599 |
1613 | screamer = ( (SvSCREAM(TARG) && rx->check_substr |
1614 | && SvTYPE(rx->check_substr) == SVt_PVBM |
1615 | && SvVALID(rx->check_substr)) |
c277df42 |
1616 | ? TARG : Nullsv); |
3280af22 |
1617 | safebase = (!rx->nparens && !PL_sawampersand) ? 0 : REXEC_COPY_STR; |
a0d0e21e |
1618 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
3280af22 |
1619 | SAVEINT(PL_multiline); |
1620 | PL_multiline = pm->op_pmflags & PMf_MULTILINE; |
a0d0e21e |
1621 | } |
1622 | orig = m = s; |
d9f97599 |
1623 | if (rx->check_substr) { |
1624 | if (!(rx->reganch & ROPT_NOSCAN)) { /* It floats. */ |
c277df42 |
1625 | if (screamer) { |
1626 | I32 p = -1; |
1627 | |
3280af22 |
1628 | if (PL_screamfirst[BmRARE(rx->check_substr)] < 0) |
a0d0e21e |
1629 | goto nope; |
d9f97599 |
1630 | else if (!(s = screaminstr(TARG, rx->check_substr, rx->check_offset_min, 0, &p, 0))) |
a0d0e21e |
1631 | goto nope; |
1632 | } |
d9f97599 |
1633 | else if (!(s = fbm_instr((unsigned char*)s + rx->check_offset_min, |
c277df42 |
1634 | (unsigned char*)strend, |
411d5715 |
1635 | rx->check_substr, 0))) |
a0d0e21e |
1636 | goto nope; |
d9f97599 |
1637 | if (s && rx->check_offset_max < s - m) { |
1638 | ++BmUSEFUL(rx->check_substr); |
1639 | s -= rx->check_offset_max; |
a0d0e21e |
1640 | } |
1641 | else |
1642 | s = m; |
1643 | } |
c277df42 |
1644 | /* Now checkstring is fixed, i.e. at fixed offset from the |
1645 | beginning of match, and the match is anchored at s. */ |
3280af22 |
1646 | else if (!PL_multiline) { /* Anchored at beginning of string. */ |
c277df42 |
1647 | I32 slen; |
d9f97599 |
1648 | if (*SvPVX(rx->check_substr) != s[rx->check_offset_min] |
1649 | || ((slen = SvCUR(rx->check_substr)) > 1 |
1650 | && memNE(SvPVX(rx->check_substr), |
1651 | s + rx->check_offset_min, slen))) |
bbce6d69 |
1652 | goto nope; |
a0d0e21e |
1653 | } |
d9f97599 |
1654 | if (!rx->naughty && --BmUSEFUL(rx->check_substr) < 0 |
1655 | && rx->check_substr == rx->float_substr) { |
1656 | SvREFCNT_dec(rx->check_substr); |
1657 | rx->check_substr = Nullsv; /* opt is being useless */ |
1658 | rx->float_substr = Nullsv; |
a0d0e21e |
1659 | } |
1660 | } |
71be2cbc |
1661 | |
1662 | /* only replace once? */ |
a0d0e21e |
1663 | once = !(rpm->op_pmflags & PMf_GLOBAL); |
71be2cbc |
1664 | |
1665 | /* known replacement string? */ |
5cd24f17 |
1666 | c = dstr ? SvPV(dstr, clen) : Nullch; |
71be2cbc |
1667 | |
1668 | /* can do inplace substitution? */ |
d9f97599 |
1669 | if (c && clen <= rx->minlen && (once || !(safebase & REXEC_COPY_STR)) |
1670 | && !(rx->reganch & ROPT_LOOKBEHIND_SEEN)) { |
15e52e56 |
1671 | if (!CALLREGEXEC(rx, s, strend, orig, 0, screamer, NULL, safebase)) { |
8ec5e241 |
1672 | SPAGAIN; |
3280af22 |
1673 | PUSHs(&PL_sv_no); |
71be2cbc |
1674 | LEAVE_SCOPE(oldsave); |
1675 | RETURN; |
1676 | } |
1677 | if (force_on_match) { |
1678 | force_on_match = 0; |
1679 | s = SvPV_force(TARG, len); |
1680 | goto force_it; |
1681 | } |
71be2cbc |
1682 | d = s; |
3280af22 |
1683 | PL_curpm = pm; |
71be2cbc |
1684 | SvSCREAM_off(TARG); /* disable possible screamer */ |
1685 | if (once) { |
48c036b1 |
1686 | rxtainted |= RX_MATCH_TAINTED(rx); |
d9f97599 |
1687 | if (rx->subbase) { |
1688 | m = orig + (rx->startp[0] - rx->subbase); |
1689 | d = orig + (rx->endp[0] - rx->subbase); |
c277df42 |
1690 | } else { |
d9f97599 |
1691 | m = rx->startp[0]; |
1692 | d = rx->endp[0]; |
c277df42 |
1693 | } |
71be2cbc |
1694 | s = orig; |
1695 | if (m - s > strend - d) { /* faster to shorten from end */ |
1696 | if (clen) { |
1697 | Copy(c, m, clen, char); |
1698 | m += clen; |
a0d0e21e |
1699 | } |
71be2cbc |
1700 | i = strend - d; |
1701 | if (i > 0) { |
1702 | Move(d, m, i, char); |
1703 | m += i; |
a0d0e21e |
1704 | } |
71be2cbc |
1705 | *m = '\0'; |
1706 | SvCUR_set(TARG, m - s); |
1707 | } |
1708 | /*SUPPRESS 560*/ |
1709 | else if (i = m - s) { /* faster from front */ |
1710 | d -= clen; |
1711 | m = d; |
1712 | sv_chop(TARG, d-i); |
1713 | s += i; |
1714 | while (i--) |
1715 | *--d = *--s; |
1716 | if (clen) |
1717 | Copy(c, m, clen, char); |
1718 | } |
1719 | else if (clen) { |
1720 | d -= clen; |
1721 | sv_chop(TARG, d); |
1722 | Copy(c, d, clen, char); |
1723 | } |
1724 | else { |
1725 | sv_chop(TARG, d); |
1726 | } |
48c036b1 |
1727 | TAINT_IF(rxtainted & 1); |
8ec5e241 |
1728 | SPAGAIN; |
3280af22 |
1729 | PUSHs(&PL_sv_yes); |
71be2cbc |
1730 | } |
1731 | else { |
71be2cbc |
1732 | do { |
1733 | if (iters++ > maxiters) |
1734 | DIE("Substitution loop"); |
d9f97599 |
1735 | rxtainted |= RX_MATCH_TAINTED(rx); |
1736 | m = rx->startp[0]; |
71be2cbc |
1737 | /*SUPPRESS 560*/ |
1738 | if (i = m - s) { |
1739 | if (s != d) |
1740 | Move(s, d, i, char); |
1741 | d += i; |
a0d0e21e |
1742 | } |
71be2cbc |
1743 | if (clen) { |
1744 | Copy(c, d, clen, char); |
1745 | d += clen; |
1746 | } |
d9f97599 |
1747 | s = rx->endp[0]; |
15e52e56 |
1748 | } while (CALLREGEXEC(rx, s, strend, orig, s == m, |
c277df42 |
1749 | Nullsv, NULL, 0)); /* don't match same null twice */ |
71be2cbc |
1750 | if (s != d) { |
1751 | i = strend - s; |
1752 | SvCUR_set(TARG, d - SvPVX(TARG) + i); |
1753 | Move(s, d, i+1, char); /* include the NUL */ |
a0d0e21e |
1754 | } |
48c036b1 |
1755 | TAINT_IF(rxtainted & 1); |
8ec5e241 |
1756 | SPAGAIN; |
71be2cbc |
1757 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
a0d0e21e |
1758 | } |
71be2cbc |
1759 | (void)SvPOK_only(TARG); |
48c036b1 |
1760 | TAINT_IF(rxtainted); |
8ec5e241 |
1761 | if (SvSMAGICAL(TARG)) { |
1762 | PUTBACK; |
1763 | mg_set(TARG); |
1764 | SPAGAIN; |
1765 | } |
9212bbba |
1766 | SvTAINT(TARG); |
71be2cbc |
1767 | LEAVE_SCOPE(oldsave); |
1768 | RETURN; |
a0d0e21e |
1769 | } |
71be2cbc |
1770 | |
15e52e56 |
1771 | if (CALLREGEXEC(rx, s, strend, orig, 0, screamer, NULL, safebase)) { |
a0d0e21e |
1772 | if (force_on_match) { |
1773 | force_on_match = 0; |
1774 | s = SvPV_force(TARG, len); |
1775 | goto force_it; |
1776 | } |
48c036b1 |
1777 | rxtainted |= RX_MATCH_TAINTED(rx); |
8ec5e241 |
1778 | dstr = NEWSV(25, len); |
a0d0e21e |
1779 | sv_setpvn(dstr, m, s-m); |
3280af22 |
1780 | PL_curpm = pm; |
a0d0e21e |
1781 | if (!c) { |
c09156bb |
1782 | register PERL_CONTEXT *cx; |
8ec5e241 |
1783 | SPAGAIN; |
a0d0e21e |
1784 | PUSHSUBST(cx); |
1785 | RETURNOP(cPMOP->op_pmreplroot); |
1786 | } |
1787 | do { |
1788 | if (iters++ > maxiters) |
1789 | DIE("Substitution loop"); |
d9f97599 |
1790 | rxtainted |= RX_MATCH_TAINTED(rx); |
1791 | if (rx->subbase && rx->subbase != orig) { |
a0d0e21e |
1792 | m = s; |
1793 | s = orig; |
d9f97599 |
1794 | orig = rx->subbase; |
a0d0e21e |
1795 | s = orig + (m - s); |
1796 | strend = s + (strend - m); |
1797 | } |
d9f97599 |
1798 | m = rx->startp[0]; |
a0d0e21e |
1799 | sv_catpvn(dstr, s, m-s); |
d9f97599 |
1800 | s = rx->endp[0]; |
a0d0e21e |
1801 | if (clen) |
1802 | sv_catpvn(dstr, c, clen); |
1803 | if (once) |
1804 | break; |
15e52e56 |
1805 | } while (CALLREGEXEC(rx, s, strend, orig, s == m, Nullsv, NULL, safebase)); |
a0d0e21e |
1806 | sv_catpvn(dstr, s, strend - s); |
748a9306 |
1807 | |
4633a7c4 |
1808 | (void)SvOOK_off(TARG); |
cb0b1708 |
1809 | Safefree(SvPVX(TARG)); |
748a9306 |
1810 | SvPVX(TARG) = SvPVX(dstr); |
1811 | SvCUR_set(TARG, SvCUR(dstr)); |
1812 | SvLEN_set(TARG, SvLEN(dstr)); |
1813 | SvPVX(dstr) = 0; |
1814 | sv_free(dstr); |
1815 | |
48c036b1 |
1816 | TAINT_IF(rxtainted & 1); |
f878fbec |
1817 | SPAGAIN; |
48c036b1 |
1818 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
1819 | |
a0d0e21e |
1820 | (void)SvPOK_only(TARG); |
48c036b1 |
1821 | TAINT_IF(rxtainted); |
a0d0e21e |
1822 | SvSETMAGIC(TARG); |
9212bbba |
1823 | SvTAINT(TARG); |
4633a7c4 |
1824 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1825 | RETURN; |
1826 | } |
5cd24f17 |
1827 | goto ret_no; |
a0d0e21e |
1828 | |
1829 | nope: |
d9f97599 |
1830 | ++BmUSEFUL(rx->check_substr); |
5cd24f17 |
1831 | |
8ec5e241 |
1832 | ret_no: |
1833 | SPAGAIN; |
3280af22 |
1834 | PUSHs(&PL_sv_no); |
4633a7c4 |
1835 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1836 | RETURN; |
1837 | } |
1838 | |
1839 | PP(pp_grepwhile) |
1840 | { |
4e35701f |
1841 | djSP; |
a0d0e21e |
1842 | |
1843 | if (SvTRUEx(POPs)) |
3280af22 |
1844 | PL_stack_base[PL_markstack_ptr[-1]++] = PL_stack_base[*PL_markstack_ptr]; |
1845 | ++*PL_markstack_ptr; |
a0d0e21e |
1846 | LEAVE; /* exit inner scope */ |
1847 | |
1848 | /* All done yet? */ |
3280af22 |
1849 | if (PL_stack_base + *PL_markstack_ptr > SP) { |
a0d0e21e |
1850 | I32 items; |
54310121 |
1851 | I32 gimme = GIMME_V; |
a0d0e21e |
1852 | |
1853 | LEAVE; /* exit outer scope */ |
1854 | (void)POPMARK; /* pop src */ |
3280af22 |
1855 | items = --*PL_markstack_ptr - PL_markstack_ptr[-1]; |
a0d0e21e |
1856 | (void)POPMARK; /* pop dst */ |
3280af22 |
1857 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
54310121 |
1858 | if (gimme == G_SCALAR) { |
a0d0e21e |
1859 | dTARGET; |
1860 | XPUSHi(items); |
a0d0e21e |
1861 | } |
54310121 |
1862 | else if (gimme == G_ARRAY) |
1863 | SP += items; |
a0d0e21e |
1864 | RETURN; |
1865 | } |
1866 | else { |
1867 | SV *src; |
1868 | |
1869 | ENTER; /* enter inner scope */ |
3280af22 |
1870 | SAVESPTR(PL_curpm); |
a0d0e21e |
1871 | |
3280af22 |
1872 | src = PL_stack_base[*PL_markstack_ptr]; |
a0d0e21e |
1873 | SvTEMP_off(src); |
54b9620d |
1874 | DEFSV = src; |
a0d0e21e |
1875 | |
1876 | RETURNOP(cLOGOP->op_other); |
1877 | } |
1878 | } |
1879 | |
1880 | PP(pp_leavesub) |
1881 | { |
4e35701f |
1882 | djSP; |
a0d0e21e |
1883 | SV **mark; |
1884 | SV **newsp; |
1885 | PMOP *newpm; |
1886 | I32 gimme; |
c09156bb |
1887 | register PERL_CONTEXT *cx; |
f86702cc |
1888 | struct block_sub cxsub; |
a0d0e21e |
1889 | |
1890 | POPBLOCK(cx,newpm); |
f86702cc |
1891 | POPSUB1(cx); /* Delay POPSUB2 until stack values are safe */ |
1892 | |
a1f49e72 |
1893 | TAINT_NOT; |
a0d0e21e |
1894 | if (gimme == G_SCALAR) { |
1895 | MARK = newsp + 1; |
a29cdaf0 |
1896 | if (MARK <= SP) { |
1897 | if (cxsub.cv && CvDEPTH(cxsub.cv) > 1) { |
1898 | if (SvTEMP(TOPs)) { |
1899 | *MARK = SvREFCNT_inc(TOPs); |
1900 | FREETMPS; |
1901 | sv_2mortal(*MARK); |
1902 | } else { |
1903 | FREETMPS; |
1904 | *MARK = sv_mortalcopy(TOPs); |
1905 | } |
1906 | } else |
1907 | *MARK = SvTEMP(TOPs) ? TOPs : sv_mortalcopy(TOPs); |
1908 | } else { |
f86702cc |
1909 | MEXTEND(MARK, 0); |
3280af22 |
1910 | *MARK = &PL_sv_undef; |
a0d0e21e |
1911 | } |
1912 | SP = MARK; |
1913 | } |
54310121 |
1914 | else if (gimme == G_ARRAY) { |
f86702cc |
1915 | for (MARK = newsp + 1; MARK <= SP; MARK++) { |
a1f49e72 |
1916 | if (!SvTEMP(*MARK)) { |
f86702cc |
1917 | *MARK = sv_mortalcopy(*MARK); |
a1f49e72 |
1918 | TAINT_NOT; /* Each item is independent */ |
1919 | } |
f86702cc |
1920 | } |
a0d0e21e |
1921 | } |
f86702cc |
1922 | PUTBACK; |
1923 | |
1924 | POPSUB2(); /* Stack values are safe: release CV and @_ ... */ |
3280af22 |
1925 | PL_curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e |
1926 | |
1927 | LEAVE; |
a0d0e21e |
1928 | return pop_return(); |
1929 | } |
1930 | |
76e3520e |
1931 | STATIC CV * |
8ac85365 |
1932 | get_db_sub(SV **svp, CV *cv) |
3de9ffa1 |
1933 | { |
1934 | dTHR; |
3280af22 |
1935 | SV *dbsv = GvSV(PL_DBsub); |
491527d0 |
1936 | |
1937 | if (!PERLDB_SUB_NN) { |
1938 | GV *gv = CvGV(cv); |
1939 | |
1940 | save_item(dbsv); |
1941 | if ( (CvFLAGS(cv) & (CVf_ANON | CVf_CLONED)) |
1942 | || strEQ(GvNAME(gv), "END") |
1943 | || ((GvCV(gv) != cv) && /* Could be imported, and old sub redefined. */ |
1944 | !( (SvTYPE(*svp) == SVt_PVGV) && (GvCV((GV*)*svp) == cv) |
1945 | && (gv = (GV*)*svp) ))) { |
1946 | /* Use GV from the stack as a fallback. */ |
1947 | /* GV is potentially non-unique, or contain different CV. */ |
1948 | sv_setsv(dbsv, newRV((SV*)cv)); |
1949 | } |
1950 | else { |
1951 | gv_efullname3(dbsv, gv, Nullch); |
1952 | } |
3de9ffa1 |
1953 | } |
1954 | else { |
491527d0 |
1955 | SvUPGRADE(dbsv, SVt_PVIV); |
1956 | SvIOK_on(dbsv); |
1957 | SAVEIV(SvIVX(dbsv)); |
1958 | SvIVX(dbsv) = (IV)cv; /* Do it the quickest way */ |
3de9ffa1 |
1959 | } |
491527d0 |
1960 | |
3de9ffa1 |
1961 | if (CvXSUB(cv)) |
3280af22 |
1962 | PL_curcopdb = PL_curcop; |
1963 | cv = GvCV(PL_DBsub); |
3de9ffa1 |
1964 | return cv; |
1965 | } |
1966 | |
a0d0e21e |
1967 | PP(pp_entersub) |
1968 | { |
4e35701f |
1969 | djSP; dPOPss; |
a0d0e21e |
1970 | GV *gv; |
1971 | HV *stash; |
1972 | register CV *cv; |
c09156bb |
1973 | register PERL_CONTEXT *cx; |
5d94fbed |
1974 | I32 gimme; |
533c011a |
1975 | bool hasargs = (PL_op->op_flags & OPf_STACKED) != 0; |
a0d0e21e |
1976 | |
1977 | if (!sv) |
1978 | DIE("Not a CODE reference"); |
1979 | switch (SvTYPE(sv)) { |
1980 | default: |
1981 | if (!SvROK(sv)) { |
748a9306 |
1982 | char *sym; |
1983 | |
3280af22 |
1984 | if (sv == &PL_sv_yes) { /* unfound import, ignore */ |
fb73857a |
1985 | if (hasargs) |
3280af22 |
1986 | SP = PL_stack_base + POPMARK; |
a0d0e21e |
1987 | RETURN; |
fb73857a |
1988 | } |
15ff848f |
1989 | if (SvGMAGICAL(sv)) { |
1990 | mg_get(sv); |
1991 | sym = SvPOKp(sv) ? SvPVX(sv) : Nullch; |
1992 | } |
1993 | else |
3280af22 |
1994 | sym = SvPV(sv, PL_na); |
15ff848f |
1995 | if (!sym) |
a0d0e21e |
1996 | DIE(no_usym, "a subroutine"); |
533c011a |
1997 | if (PL_op->op_private & HINT_STRICT_REFS) |
748a9306 |
1998 | DIE(no_symref, sym, "a subroutine"); |
1999 | cv = perl_get_cv(sym, TRUE); |
a0d0e21e |
2000 | break; |
2001 | } |
2002 | cv = (CV*)SvRV(sv); |
2003 | if (SvTYPE(cv) == SVt_PVCV) |
2004 | break; |
2005 | /* FALL THROUGH */ |
2006 | case SVt_PVHV: |
2007 | case SVt_PVAV: |
2008 | DIE("Not a CODE reference"); |
2009 | case SVt_PVCV: |
2010 | cv = (CV*)sv; |
2011 | break; |
2012 | case SVt_PVGV: |
8ebc5c01 |
2013 | if (!(cv = GvCVu((GV*)sv))) |
a0d0e21e |
2014 | cv = sv_2cv(sv, &stash, &gv, TRUE); |
2015 | break; |
2016 | } |
2017 | |
2018 | ENTER; |
2019 | SAVETMPS; |
2020 | |
2021 | retry: |
2022 | if (!cv) |
2023 | DIE("Not a CODE reference"); |
2024 | |
2025 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
44a8e56a |
2026 | GV* autogv; |
22239a37 |
2027 | SV* sub_name; |
44a8e56a |
2028 | |
2029 | /* anonymous or undef'd function leaves us no recourse */ |
2030 | if (CvANON(cv) || !(gv = CvGV(cv))) |
2031 | DIE("Undefined subroutine called"); |
2032 | /* autoloaded stub? */ |
2033 | if (cv != GvCV(gv)) { |
2034 | cv = GvCV(gv); |
2035 | goto retry; |
a0d0e21e |
2036 | } |
44a8e56a |
2037 | /* should call AUTOLOAD now? */ |
54310121 |
2038 | if ((autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), |
2039 | FALSE))) |
2040 | { |
44a8e56a |
2041 | cv = GvCV(autogv); |
2042 | goto retry; |
a0d0e21e |
2043 | } |
44a8e56a |
2044 | /* sorry */ |
22239a37 |
2045 | sub_name = sv_newmortal(); |
2046 | gv_efullname3(sub_name, gv, Nullch); |
2047 | DIE("Undefined subroutine &%s called", SvPVX(sub_name)); |
a0d0e21e |
2048 | } |
2049 | |
54310121 |
2050 | gimme = GIMME_V; |
533c011a |
2051 | if ((PL_op->op_private & OPpENTERSUB_DB) && GvCV(PL_DBsub) && !CvNODEBUG(cv)) |
4f01c5a5 |
2052 | cv = get_db_sub(&sv, cv); |
3de9ffa1 |
2053 | if (!cv) |
2054 | DIE("No DBsub routine"); |
a0d0e21e |
2055 | |
11343788 |
2056 | #ifdef USE_THREADS |
3de9ffa1 |
2057 | /* |
2058 | * First we need to check if the sub or method requires locking. |
458fb581 |
2059 | * If so, we gain a lock on the CV, the first argument or the |
2060 | * stash (for static methods), as appropriate. This has to be |
2061 | * inline because for FAKE_THREADS, COND_WAIT inlines code to |
2062 | * reschedule by returning a new op. |
3de9ffa1 |
2063 | */ |
11343788 |
2064 | MUTEX_LOCK(CvMUTEXP(cv)); |
77a005ab |
2065 | if (CvFLAGS(cv) & CVf_LOCKED) { |
2066 | MAGIC *mg; |
2067 | if (CvFLAGS(cv) & CVf_METHOD) { |
533c011a |
2068 | if (SP > PL_stack_base + TOPMARK) |
2069 | sv = *(PL_stack_base + TOPMARK + 1); |
77a005ab |
2070 | else { |
2071 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
2072 | croak("no argument for locked method call"); |
2073 | } |
2074 | if (SvROK(sv)) |
2075 | sv = SvRV(sv); |
458fb581 |
2076 | else { |
2077 | STRLEN len; |
2078 | char *stashname = SvPV(sv, len); |
2079 | sv = (SV*)gv_stashpvn(stashname, len, TRUE); |
2080 | } |
77a005ab |
2081 | } |
2082 | else { |
2083 | sv = (SV*)cv; |
2084 | } |
2085 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
2086 | mg = condpair_magic(sv); |
2087 | MUTEX_LOCK(MgMUTEXP(mg)); |
2088 | if (MgOWNER(mg) == thr) |
2089 | MUTEX_UNLOCK(MgMUTEXP(mg)); |
2090 | else { |
2091 | while (MgOWNER(mg)) |
2092 | COND_WAIT(MgOWNERCONDP(mg), MgMUTEXP(mg)); |
2093 | MgOWNER(mg) = thr; |
1fd28e87 |
2094 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), "%p: pp_entersub lock %p\n", |
2095 | thr, sv);) |
77a005ab |
2096 | MUTEX_UNLOCK(MgMUTEXP(mg)); |
e55aaa0e |
2097 | SvREFCNT_inc(sv); /* Keep alive until magic_mutexfree */ |
77a005ab |
2098 | save_destructor(unlock_condpair, sv); |
11343788 |
2099 | } |
77a005ab |
2100 | MUTEX_LOCK(CvMUTEXP(cv)); |
11343788 |
2101 | } |
3de9ffa1 |
2102 | /* |
2103 | * Now we have permission to enter the sub, we must distinguish |
2104 | * four cases. (0) It's an XSUB (in which case we don't care |
2105 | * about ownership); (1) it's ours already (and we're recursing); |
2106 | * (2) it's free (but we may already be using a cached clone); |
2107 | * (3) another thread owns it. Case (1) is easy: we just use it. |
2108 | * Case (2) means we look for a clone--if we have one, use it |
2109 | * otherwise grab ownership of cv. Case (3) means we look for a |
2110 | * clone (for non-XSUBs) and have to create one if we don't |
2111 | * already have one. |
2112 | * Why look for a clone in case (2) when we could just grab |
2113 | * ownership of cv straight away? Well, we could be recursing, |
2114 | * i.e. we originally tried to enter cv while another thread |
2115 | * owned it (hence we used a clone) but it has been freed up |
2116 | * and we're now recursing into it. It may or may not be "better" |
2117 | * to use the clone but at least CvDEPTH can be trusted. |
2118 | */ |
2119 | if (CvOWNER(cv) == thr || CvXSUB(cv)) |
2120 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
11343788 |
2121 | else { |
3de9ffa1 |
2122 | /* Case (2) or (3) */ |
2123 | SV **svp; |
2124 | |
11343788 |
2125 | /* |
3de9ffa1 |
2126 | * XXX Might it be better to release CvMUTEXP(cv) while we |
2127 | * do the hv_fetch? We might find someone has pinched it |
2128 | * when we look again, in which case we would be in case |
2129 | * (3) instead of (2) so we'd have to clone. Would the fact |
2130 | * that we released the mutex more quickly make up for this? |
2131 | */ |
533c011a |
2132 | if (PL_threadnum && |
6ee623d5 |
2133 | (svp = hv_fetch(thr->cvcache, (char *)cv, sizeof(cv), FALSE))) |
2134 | { |
3de9ffa1 |
2135 | /* We already have a clone to use */ |
11343788 |
2136 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
3de9ffa1 |
2137 | cv = *(CV**)svp; |
2138 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
1fd28e87 |
2139 | "entersub: %p already has clone %p:%s\n", |
2140 | thr, cv, SvPEEK((SV*)cv))); |
3de9ffa1 |
2141 | CvOWNER(cv) = thr; |
2142 | SvREFCNT_inc(cv); |
2143 | if (CvDEPTH(cv) == 0) |
2144 | SAVEDESTRUCTOR(unset_cvowner, (void*) cv); |
2145 | } |
11343788 |
2146 | else { |
3de9ffa1 |
2147 | /* (2) => grab ownership of cv. (3) => make clone */ |
2148 | if (!CvOWNER(cv)) { |
2149 | CvOWNER(cv) = thr; |
2150 | SvREFCNT_inc(cv); |
11343788 |
2151 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
d9f997d7 |
2152 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
1fd28e87 |
2153 | "entersub: %p grabbing %p:%s in stash %s\n", |
2154 | thr, cv, SvPEEK((SV*)cv), CvSTASH(cv) ? |
3de9ffa1 |
2155 | HvNAME(CvSTASH(cv)) : "(none)")); |
2156 | } else { |
2157 | /* Make a new clone. */ |
2158 | CV *clonecv; |
2159 | SvREFCNT_inc(cv); /* don't let it vanish from under us */ |
2160 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
2161 | DEBUG_L((PerlIO_printf(PerlIO_stderr(), |
1fd28e87 |
2162 | "entersub: %p cloning %p:%s\n", |
2163 | thr, cv, SvPEEK((SV*)cv)))); |
3de9ffa1 |
2164 | /* |
2165 | * We're creating a new clone so there's no race |
2166 | * between the original MUTEX_UNLOCK and the |
2167 | * SvREFCNT_inc since no one will be trying to undef |
2168 | * it out from underneath us. At least, I don't think |
2169 | * there's a race... |
2170 | */ |
2171 | clonecv = cv_clone(cv); |
2172 | SvREFCNT_dec(cv); /* finished with this */ |
199100c8 |
2173 | hv_store(thr->cvcache, (char*)cv, sizeof(cv), (SV*)clonecv,0); |
3de9ffa1 |
2174 | CvOWNER(clonecv) = thr; |
2175 | cv = clonecv; |
11343788 |
2176 | SvREFCNT_inc(cv); |
11343788 |
2177 | } |
3de9ffa1 |
2178 | DEBUG_L(if (CvDEPTH(cv) != 0) |
2179 | PerlIO_printf(PerlIO_stderr(), "depth %ld != 0\n", |
2180 | CvDEPTH(cv));); |
2181 | SAVEDESTRUCTOR(unset_cvowner, (void*) cv); |
11343788 |
2182 | } |
3de9ffa1 |
2183 | } |
11343788 |
2184 | #endif /* USE_THREADS */ |
2185 | |
a0d0e21e |
2186 | if (CvXSUB(cv)) { |
2187 | if (CvOLDSTYLE(cv)) { |
ecfc5424 |
2188 | I32 (*fp3)_((int,int,int)); |
a0d0e21e |
2189 | dMARK; |
2190 | register I32 items = SP - MARK; |
67955e0c |
2191 | /* We dont worry to copy from @_. */ |
924508f0 |
2192 | while (SP > mark) { |
2193 | SP[1] = SP[0]; |
2194 | SP--; |
a0d0e21e |
2195 | } |
3280af22 |
2196 | PL_stack_sp = mark + 1; |
ecfc5424 |
2197 | fp3 = (I32(*)_((int,int,int)))CvXSUB(cv); |
2198 | items = (*fp3)(CvXSUBANY(cv).any_i32, |
3280af22 |
2199 | MARK - PL_stack_base + 1, |
ecfc5424 |
2200 | items); |
3280af22 |
2201 | PL_stack_sp = PL_stack_base + items; |
a0d0e21e |
2202 | } |
2203 | else { |
748a9306 |
2204 | I32 markix = TOPMARK; |
2205 | |
a0d0e21e |
2206 | PUTBACK; |
67955e0c |
2207 | |
2208 | if (!hasargs) { |
2209 | /* Need to copy @_ to stack. Alternative may be to |
2210 | * switch stack to @_, and copy return values |
2211 | * back. This would allow popping @_ in XSUB, e.g.. XXXX */ |
6d4ff0d2 |
2212 | AV* av; |
2213 | I32 items; |
2214 | #ifdef USE_THREADS |
533c011a |
2215 | av = (AV*)PL_curpad[0]; |
6d4ff0d2 |
2216 | #else |
3280af22 |
2217 | av = GvAV(PL_defgv); |
6d4ff0d2 |
2218 | #endif /* USE_THREADS */ |
93965878 |
2219 | items = AvFILLp(av) + 1; /* @_ is not tieable */ |
67955e0c |
2220 | |
2221 | if (items) { |
2222 | /* Mark is at the end of the stack. */ |
924508f0 |
2223 | EXTEND(SP, items); |
2224 | Copy(AvARRAY(av), SP + 1, items, SV*); |
2225 | SP += items; |
67955e0c |
2226 | PUTBACK ; |
2227 | } |
2228 | } |
3280af22 |
2229 | if (PL_curcopdb) { /* We assume that the first |
67955e0c |
2230 | XSUB in &DB::sub is the |
2231 | called one. */ |
3280af22 |
2232 | SAVESPTR(PL_curcop); |
2233 | PL_curcop = PL_curcopdb; |
2234 | PL_curcopdb = NULL; |
67955e0c |
2235 | } |
2236 | /* Do we need to open block here? XXXX */ |
1d583055 |
2237 | (void)(*CvXSUB(cv))(cv _PERL_OBJECT_THIS); |
748a9306 |
2238 | |
2239 | /* Enforce some sanity in scalar context. */ |
3280af22 |
2240 | if (gimme == G_SCALAR && ++markix != PL_stack_sp - PL_stack_base ) { |
2241 | if (markix > PL_stack_sp - PL_stack_base) |
2242 | *(PL_stack_base + markix) = &PL_sv_undef; |
748a9306 |
2243 | else |
3280af22 |
2244 | *(PL_stack_base + markix) = *PL_stack_sp; |
2245 | PL_stack_sp = PL_stack_base + markix; |
748a9306 |
2246 | } |
a0d0e21e |
2247 | } |
2248 | LEAVE; |
2249 | return NORMAL; |
2250 | } |
2251 | else { |
2252 | dMARK; |
2253 | register I32 items = SP - MARK; |
a0d0e21e |
2254 | AV* padlist = CvPADLIST(cv); |
2255 | SV** svp = AvARRAY(padlist); |
533c011a |
2256 | push_return(PL_op->op_next); |
a0d0e21e |
2257 | PUSHBLOCK(cx, CXt_SUB, MARK); |
2258 | PUSHSUB(cx); |
2259 | CvDEPTH(cv)++; |
2260 | if (CvDEPTH(cv) < 2) |
2261 | (void)SvREFCNT_inc(cv); |
2262 | else { /* save temporaries on recursion? */ |
3280af22 |
2263 | if (CvDEPTH(cv) == 100 && PL_dowarn |
2264 | && !(PERLDB_SUB && cv == GvCV(PL_DBsub))) |
44a8e56a |
2265 | sub_crush_depth(cv); |
93965878 |
2266 | if (CvDEPTH(cv) > AvFILLp(padlist)) { |
a0d0e21e |
2267 | AV *av; |
2268 | AV *newpad = newAV(); |
4aa0a1f7 |
2269 | SV **oldpad = AvARRAY(svp[CvDEPTH(cv)-1]); |
93965878 |
2270 | I32 ix = AvFILLp((AV*)svp[1]); |
a0d0e21e |
2271 | svp = AvARRAY(svp[0]); |
748a9306 |
2272 | for ( ;ix > 0; ix--) { |
3280af22 |
2273 | if (svp[ix] != &PL_sv_undef) { |
748a9306 |
2274 | char *name = SvPVX(svp[ix]); |
5f05dabc |
2275 | if ((SvFLAGS(svp[ix]) & SVf_FAKE) /* outer lexical? */ |
2276 | || *name == '&') /* anonymous code? */ |
2277 | { |
2278 | av_store(newpad, ix, SvREFCNT_inc(oldpad[ix])); |
748a9306 |
2279 | } |
2280 | else { /* our own lexical */ |
2281 | if (*name == '@') |
2282 | av_store(newpad, ix, sv = (SV*)newAV()); |
2283 | else if (*name == '%') |
2284 | av_store(newpad, ix, sv = (SV*)newHV()); |
2285 | else |
2286 | av_store(newpad, ix, sv = NEWSV(0,0)); |
2287 | SvPADMY_on(sv); |
2288 | } |
a0d0e21e |
2289 | } |
2290 | else { |
748a9306 |
2291 | av_store(newpad, ix, sv = NEWSV(0,0)); |
a0d0e21e |
2292 | SvPADTMP_on(sv); |
2293 | } |
2294 | } |
2295 | av = newAV(); /* will be @_ */ |
2296 | av_extend(av, 0); |
2297 | av_store(newpad, 0, (SV*)av); |
2298 | AvFLAGS(av) = AVf_REIFY; |
2299 | av_store(padlist, CvDEPTH(cv), (SV*)newpad); |
93965878 |
2300 | AvFILLp(padlist) = CvDEPTH(cv); |
a0d0e21e |
2301 | svp = AvARRAY(padlist); |
2302 | } |
2303 | } |
6d4ff0d2 |
2304 | #ifdef USE_THREADS |
2305 | if (!hasargs) { |
533c011a |
2306 | AV* av = (AV*)PL_curpad[0]; |
6d4ff0d2 |
2307 | |
93965878 |
2308 | items = AvFILLp(av) + 1; |
6d4ff0d2 |
2309 | if (items) { |
2310 | /* Mark is at the end of the stack. */ |
924508f0 |
2311 | EXTEND(SP, items); |
2312 | Copy(AvARRAY(av), SP + 1, items, SV*); |
2313 | SP += items; |
6d4ff0d2 |
2314 | PUTBACK ; |
2315 | } |
2316 | } |
2317 | #endif /* USE_THREADS */ |
3280af22 |
2318 | SAVESPTR(PL_curpad); |
2319 | PL_curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]); |
6d4ff0d2 |
2320 | #ifndef USE_THREADS |
2321 | if (hasargs) |
2322 | #endif /* USE_THREADS */ |
2323 | { |
2324 | AV* av; |
a0d0e21e |
2325 | SV** ary; |
2326 | |
77a005ab |
2327 | #if 0 |
0f15f207 |
2328 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
2329 | "%p entersub preparing @_\n", thr)); |
77a005ab |
2330 | #endif |
3280af22 |
2331 | av = (AV*)PL_curpad[0]; |
a0d0e21e |
2332 | if (AvREAL(av)) { |
2333 | av_clear(av); |
2334 | AvREAL_off(av); |
2335 | } |
6d4ff0d2 |
2336 | #ifndef USE_THREADS |
3280af22 |
2337 | cx->blk_sub.savearray = GvAV(PL_defgv); |
2338 | GvAV(PL_defgv) = (AV*)SvREFCNT_inc(av); |
6d4ff0d2 |
2339 | #endif /* USE_THREADS */ |
2340 | cx->blk_sub.argarray = av; |
a0d0e21e |
2341 | ++MARK; |
2342 | |
2343 | if (items > AvMAX(av) + 1) { |
2344 | ary = AvALLOC(av); |
2345 | if (AvARRAY(av) != ary) { |
2346 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); |
2347 | SvPVX(av) = (char*)ary; |
2348 | } |
2349 | if (items > AvMAX(av) + 1) { |
2350 | AvMAX(av) = items - 1; |
2351 | Renew(ary,items,SV*); |
2352 | AvALLOC(av) = ary; |
2353 | SvPVX(av) = (char*)ary; |
2354 | } |
2355 | } |
2356 | Copy(MARK,AvARRAY(av),items,SV*); |
93965878 |
2357 | AvFILLp(av) = items - 1; |
a0d0e21e |
2358 | |
2359 | while (items--) { |
2360 | if (*MARK) |
2361 | SvTEMP_off(*MARK); |
2362 | MARK++; |
2363 | } |
2364 | } |
77a005ab |
2365 | #if 0 |
0f15f207 |
2366 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
2367 | "%p entersub returning %p\n", thr, CvSTART(cv))); |
77a005ab |
2368 | #endif |
a0d0e21e |
2369 | RETURNOP(CvSTART(cv)); |
2370 | } |
2371 | } |
2372 | |
44a8e56a |
2373 | void |
8ac85365 |
2374 | sub_crush_depth(CV *cv) |
44a8e56a |
2375 | { |
2376 | if (CvANON(cv)) |
2377 | warn("Deep recursion on anonymous subroutine"); |
2378 | else { |
2379 | SV* tmpstr = sv_newmortal(); |
2380 | gv_efullname3(tmpstr, CvGV(cv), Nullch); |
2381 | warn("Deep recursion on subroutine \"%s\"", SvPVX(tmpstr)); |
2382 | } |
2383 | } |
2384 | |
a0d0e21e |
2385 | PP(pp_aelem) |
2386 | { |
4e35701f |
2387 | djSP; |
a0d0e21e |
2388 | SV** svp; |
748a9306 |
2389 | I32 elem = POPi; |
68dc0745 |
2390 | AV* av = (AV*)POPs; |
533c011a |
2391 | U32 lval = PL_op->op_flags & OPf_MOD; |
2392 | U32 defer = (PL_op->op_private & OPpLVAL_DEFER) && (elem > AvFILL(av)); |
be6c24e0 |
2393 | SV *sv; |
a0d0e21e |
2394 | |
748a9306 |
2395 | if (elem > 0) |
3280af22 |
2396 | elem -= PL_curcop->cop_arybase; |
a0d0e21e |
2397 | if (SvTYPE(av) != SVt_PVAV) |
2398 | RETPUSHUNDEF; |
68dc0745 |
2399 | svp = av_fetch(av, elem, lval && !defer); |
a0d0e21e |
2400 | if (lval) { |
3280af22 |
2401 | if (!svp || *svp == &PL_sv_undef) { |
68dc0745 |
2402 | SV* lv; |
2403 | if (!defer) |
2404 | DIE(no_aelem, elem); |
2405 | lv = sv_newmortal(); |
2406 | sv_upgrade(lv, SVt_PVLV); |
2407 | LvTYPE(lv) = 'y'; |
2408 | sv_magic(lv, Nullsv, 'y', Nullch, 0); |
2409 | LvTARG(lv) = SvREFCNT_inc(av); |
2410 | LvTARGOFF(lv) = elem; |
2411 | LvTARGLEN(lv) = 1; |
2412 | PUSHs(lv); |
2413 | RETURN; |
2414 | } |
533c011a |
2415 | if (PL_op->op_private & OPpLVAL_INTRO) |
161b7d16 |
2416 | save_aelem(av, elem, svp); |
533c011a |
2417 | else if (PL_op->op_private & OPpDEREF) |
2418 | vivify_ref(*svp, PL_op->op_private & OPpDEREF); |
a0d0e21e |
2419 | } |
3280af22 |
2420 | sv = (svp ? *svp : &PL_sv_undef); |
be6c24e0 |
2421 | if (!lval && SvGMAGICAL(sv)) /* see note in pp_helem() */ |
2422 | sv = sv_mortalcopy(sv); |
2423 | PUSHs(sv); |
a0d0e21e |
2424 | RETURN; |
2425 | } |
2426 | |
02a9e968 |
2427 | void |
8ac85365 |
2428 | vivify_ref(SV *sv, U32 to_what) |
02a9e968 |
2429 | { |
2430 | if (SvGMAGICAL(sv)) |
2431 | mg_get(sv); |
2432 | if (!SvOK(sv)) { |
2433 | if (SvREADONLY(sv)) |
2434 | croak(no_modify); |
5f05dabc |
2435 | if (SvTYPE(sv) < SVt_RV) |
2436 | sv_upgrade(sv, SVt_RV); |
2437 | else if (SvTYPE(sv) >= SVt_PV) { |
2438 | (void)SvOOK_off(sv); |
2439 | Safefree(SvPVX(sv)); |
2440 | SvLEN(sv) = SvCUR(sv) = 0; |
2441 | } |
68dc0745 |
2442 | switch (to_what) { |
5f05dabc |
2443 | case OPpDEREF_SV: |
8c52afec |
2444 | SvRV(sv) = NEWSV(355,0); |
5f05dabc |
2445 | break; |
2446 | case OPpDEREF_AV: |
2447 | SvRV(sv) = (SV*)newAV(); |
2448 | break; |
2449 | case OPpDEREF_HV: |
2450 | SvRV(sv) = (SV*)newHV(); |
2451 | break; |
2452 | } |
02a9e968 |
2453 | SvROK_on(sv); |
2454 | SvSETMAGIC(sv); |
2455 | } |
2456 | } |
2457 | |
a0d0e21e |
2458 | PP(pp_method) |
2459 | { |
4e35701f |
2460 | djSP; |
a0d0e21e |
2461 | SV* sv; |
2462 | SV* ob; |
2463 | GV* gv; |
56304f61 |
2464 | HV* stash; |
2465 | char* name; |
ac91690f |
2466 | char* packname; |
2467 | STRLEN packlen; |
a0d0e21e |
2468 | |
fb73857a |
2469 | if (SvROK(TOPs)) { |
2470 | sv = SvRV(TOPs); |
2471 | if (SvTYPE(sv) == SVt_PVCV) { |
2472 | SETs(sv); |
2473 | RETURN; |
2474 | } |
2475 | } |
2476 | |
3280af22 |
2477 | name = SvPV(TOPs, PL_na); |
2478 | sv = *(PL_stack_base + TOPMARK + 1); |
a0d0e21e |
2479 | |
16d20bd9 |
2480 | if (SvGMAGICAL(sv)) |
2481 | mg_get(sv); |
a0d0e21e |
2482 | if (SvROK(sv)) |
16d20bd9 |
2483 | ob = (SV*)SvRV(sv); |
a0d0e21e |
2484 | else { |
2485 | GV* iogv; |
a0d0e21e |
2486 | |
56304f61 |
2487 | packname = Nullch; |
a0d0e21e |
2488 | if (!SvOK(sv) || |
56304f61 |
2489 | !(packname = SvPV(sv, packlen)) || |
a0d0e21e |
2490 | !(iogv = gv_fetchpv(packname, FALSE, SVt_PVIO)) || |
2491 | !(ob=(SV*)GvIO(iogv))) |
2492 | { |
56304f61 |
2493 | if (!packname || !isIDFIRST(*packname)) |
72b5445b |
2494 | DIE("Can't call method \"%s\" %s", name, |
2495 | SvOK(sv)? "without a package or object reference" |
2496 | : "on an undefined value"); |
56304f61 |
2497 | stash = gv_stashpvn(packname, packlen, TRUE); |
ac91690f |
2498 | goto fetch; |
a0d0e21e |
2499 | } |
3280af22 |
2500 | *(PL_stack_base + TOPMARK + 1) = sv_2mortal(newRV((SV*)iogv)); |
a0d0e21e |
2501 | } |
2502 | |
ac91690f |
2503 | if (!ob || !SvOBJECT(ob)) |
a0d0e21e |
2504 | DIE("Can't call method \"%s\" on unblessed reference", name); |
a0d0e21e |
2505 | |
56304f61 |
2506 | stash = SvSTASH(ob); |
a0d0e21e |
2507 | |
ac91690f |
2508 | fetch: |
ac91690f |
2509 | gv = gv_fetchmethod(stash, name); |
56304f61 |
2510 | if (!gv) { |
2511 | char* leaf = name; |
2512 | char* sep = Nullch; |
2513 | char* p; |
2514 | |
2515 | for (p = name; *p; p++) { |
2516 | if (*p == '\'') |
2517 | sep = p, leaf = p + 1; |
2518 | else if (*p == ':' && *(p + 1) == ':') |
2519 | sep = p, leaf = p + 2; |
2520 | } |
2521 | if (!sep || ((sep - name) == 5 && strnEQ(name, "SUPER", 5))) { |
3280af22 |
2522 | packname = HvNAME(sep ? PL_curcop->cop_stash : stash); |
56304f61 |
2523 | packlen = strlen(packname); |
2524 | } |
2525 | else { |
2526 | packname = name; |
2527 | packlen = sep - name; |
2528 | } |
2529 | DIE("Can't locate object method \"%s\" via package \"%.*s\"", |
2530 | leaf, (int)packlen, packname); |
2531 | } |
8ebc5c01 |
2532 | SETs(isGV(gv) ? (SV*)GvCV(gv) : (SV*)gv); |
a0d0e21e |
2533 | RETURN; |
2534 | } |
22239a37 |
2535 | |