Commit | Line | Data |
a0d0e21e |
1 | /* pp_hot.c |
2 | * |
4eb8286e |
3 | * Copyright (c) 1991-1999, 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" |
864dbfa3 |
19 | #define PERL_IN_PP_HOT_C |
a0d0e21e |
20 | #include "perl.h" |
21 | |
8ac85365 |
22 | #ifdef I_UNISTD |
23 | #include <unistd.h> |
24 | #endif |
9d116dd7 |
25 | #ifdef I_FCNTL |
26 | #include <fcntl.h> |
27 | #endif |
28 | #ifdef I_SYS_FILE |
29 | #include <sys/file.h> |
30 | #endif |
8ac85365 |
31 | |
a0ed51b3 |
32 | #define HOP(pos,off) (IN_UTF8 ? utf8_hop(pos, off) : (pos + off)) |
33 | |
a0d0e21e |
34 | /* Hot code. */ |
35 | |
11343788 |
36 | #ifdef USE_THREADS |
864dbfa3 |
37 | STATIC void |
cea2e8a9 |
38 | S_unset_cvowner(pTHX_ void *cvarg) |
11343788 |
39 | { |
40 | register CV* cv = (CV *) cvarg; |
41 | #ifdef DEBUGGING |
42 | dTHR; |
43 | #endif /* DEBUGGING */ |
44 | |
8b73bbec |
45 | DEBUG_S((PerlIO_printf(PerlIO_stderr(), "%p unsetting CvOWNER of %p:%s\n", |
1fd28e87 |
46 | thr, cv, SvPEEK((SV*)cv)))); |
11343788 |
47 | MUTEX_LOCK(CvMUTEXP(cv)); |
8b73bbec |
48 | DEBUG_S(if (CvDEPTH(cv) != 0) |
77a005ab |
49 | PerlIO_printf(PerlIO_stderr(), "depth %ld != 0\n", |
50 | CvDEPTH(cv));); |
11343788 |
51 | assert(thr == CvOWNER(cv)); |
52 | CvOWNER(cv) = 0; |
11343788 |
53 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
54 | SvREFCNT_dec(cv); |
55 | } |
11343788 |
56 | #endif /* USE_THREADS */ |
57 | |
a0d0e21e |
58 | PP(pp_const) |
59 | { |
4e35701f |
60 | djSP; |
a0d0e21e |
61 | XPUSHs(cSVOP->op_sv); |
62 | RETURN; |
63 | } |
64 | |
65 | PP(pp_nextstate) |
66 | { |
533c011a |
67 | PL_curcop = (COP*)PL_op; |
a0d0e21e |
68 | TAINT_NOT; /* Each statement is presumed innocent */ |
3280af22 |
69 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e |
70 | FREETMPS; |
71 | return NORMAL; |
72 | } |
73 | |
74 | PP(pp_gvsv) |
75 | { |
4e35701f |
76 | djSP; |
924508f0 |
77 | EXTEND(SP,1); |
533c011a |
78 | if (PL_op->op_private & OPpLVAL_INTRO) |
a0d0e21e |
79 | PUSHs(save_scalar(cGVOP->op_gv)); |
80 | else |
81 | PUSHs(GvSV(cGVOP->op_gv)); |
82 | RETURN; |
83 | } |
84 | |
85 | PP(pp_null) |
86 | { |
87 | return NORMAL; |
88 | } |
89 | |
90 | PP(pp_pushmark) |
91 | { |
3280af22 |
92 | PUSHMARK(PL_stack_sp); |
a0d0e21e |
93 | return NORMAL; |
94 | } |
95 | |
96 | PP(pp_stringify) |
97 | { |
4e35701f |
98 | djSP; dTARGET; |
a0d0e21e |
99 | STRLEN len; |
100 | char *s; |
101 | s = SvPV(TOPs,len); |
102 | sv_setpvn(TARG,s,len); |
103 | SETTARG; |
104 | RETURN; |
105 | } |
106 | |
107 | PP(pp_gv) |
108 | { |
4e35701f |
109 | djSP; |
a0d0e21e |
110 | XPUSHs((SV*)cGVOP->op_gv); |
111 | RETURN; |
112 | } |
113 | |
114 | PP(pp_and) |
115 | { |
4e35701f |
116 | djSP; |
a0d0e21e |
117 | if (!SvTRUE(TOPs)) |
118 | RETURN; |
119 | else { |
120 | --SP; |
121 | RETURNOP(cLOGOP->op_other); |
122 | } |
123 | } |
124 | |
125 | PP(pp_sassign) |
126 | { |
4e35701f |
127 | djSP; dPOPTOPssrl; |
748a9306 |
128 | MAGIC *mg; |
129 | |
533c011a |
130 | if (PL_op->op_private & OPpASSIGN_BACKWARDS) { |
a0d0e21e |
131 | SV *temp; |
132 | temp = left; left = right; right = temp; |
133 | } |
3280af22 |
134 | if (PL_tainting && PL_tainted && !SvTAINTED(left)) |
a0d0e21e |
135 | TAINT_NOT; |
54310121 |
136 | SvSetMagicSV(right, left); |
a0d0e21e |
137 | SETs(right); |
138 | RETURN; |
139 | } |
140 | |
141 | PP(pp_cond_expr) |
142 | { |
4e35701f |
143 | djSP; |
a0d0e21e |
144 | if (SvTRUEx(POPs)) |
1a67a97c |
145 | RETURNOP(cLOGOP->op_other); |
a0d0e21e |
146 | else |
1a67a97c |
147 | RETURNOP(cLOGOP->op_next); |
a0d0e21e |
148 | } |
149 | |
150 | PP(pp_unstack) |
151 | { |
152 | I32 oldsave; |
153 | TAINT_NOT; /* Each statement is presumed innocent */ |
3280af22 |
154 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e |
155 | FREETMPS; |
3280af22 |
156 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e |
157 | LEAVE_SCOPE(oldsave); |
158 | return NORMAL; |
159 | } |
160 | |
a0d0e21e |
161 | PP(pp_concat) |
162 | { |
4e35701f |
163 | djSP; dATARGET; tryAMAGICbin(concat,opASSIGN); |
748a9306 |
164 | { |
165 | dPOPTOPssrl; |
a0d0e21e |
166 | STRLEN len; |
167 | char *s; |
168 | if (TARG != left) { |
169 | s = SvPV(left,len); |
170 | sv_setpvn(TARG,s,len); |
171 | } |
c07a80fd |
172 | else if (SvGMAGICAL(TARG)) |
173 | mg_get(TARG); |
7a4c00b4 |
174 | else if (!SvOK(TARG) && SvTYPE(TARG) <= SVt_PVMG) { |
748a9306 |
175 | sv_setpv(TARG, ""); /* Suppress warning. */ |
7a4c00b4 |
176 | s = SvPV_force(TARG, len); |
4633a7c4 |
177 | } |
a0d0e21e |
178 | s = SvPV(right,len); |
68dc0745 |
179 | if (SvOK(TARG)) |
180 | sv_catpvn(TARG,s,len); |
181 | else |
182 | sv_setpvn(TARG,s,len); /* suppress warning */ |
a0d0e21e |
183 | SETTARG; |
184 | RETURN; |
748a9306 |
185 | } |
a0d0e21e |
186 | } |
187 | |
188 | PP(pp_padsv) |
189 | { |
4e35701f |
190 | djSP; dTARGET; |
a0d0e21e |
191 | XPUSHs(TARG); |
533c011a |
192 | if (PL_op->op_flags & OPf_MOD) { |
193 | if (PL_op->op_private & OPpLVAL_INTRO) |
194 | SAVECLEARSV(PL_curpad[PL_op->op_targ]); |
195 | else if (PL_op->op_private & OPpDEREF) { |
8ec5e241 |
196 | PUTBACK; |
533c011a |
197 | vivify_ref(PL_curpad[PL_op->op_targ], PL_op->op_private & OPpDEREF); |
8ec5e241 |
198 | SPAGAIN; |
199 | } |
4633a7c4 |
200 | } |
a0d0e21e |
201 | RETURN; |
202 | } |
203 | |
204 | PP(pp_readline) |
205 | { |
f5284f61 |
206 | tryAMAGICunTARGET(iter, 0); |
3280af22 |
207 | PL_last_in_gv = (GV*)(*PL_stack_sp--); |
8efb3254 |
208 | if (SvTYPE(PL_last_in_gv) != SVt_PVGV) { |
209 | if (SvROK(PL_last_in_gv) && SvTYPE(SvRV(PL_last_in_gv)) == SVt_PVGV) |
f5284f61 |
210 | PL_last_in_gv = (GV*)SvRV(PL_last_in_gv); |
8efb3254 |
211 | else { |
f5284f61 |
212 | dSP; |
213 | XPUSHs((SV*)PL_last_in_gv); |
214 | PUTBACK; |
cea2e8a9 |
215 | pp_rv2gv(); |
f5284f61 |
216 | PL_last_in_gv = (GV*)(*PL_stack_sp--); |
f5284f61 |
217 | } |
218 | } |
a0d0e21e |
219 | return do_readline(); |
220 | } |
221 | |
222 | PP(pp_eq) |
223 | { |
4e35701f |
224 | djSP; tryAMAGICbinSET(eq,0); |
a0d0e21e |
225 | { |
226 | dPOPnv; |
54310121 |
227 | SETs(boolSV(TOPn == value)); |
a0d0e21e |
228 | RETURN; |
229 | } |
230 | } |
231 | |
232 | PP(pp_preinc) |
233 | { |
4e35701f |
234 | djSP; |
68dc0745 |
235 | if (SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV) |
cea2e8a9 |
236 | Perl_croak(aTHX_ PL_no_modify); |
25da4f38 |
237 | if (SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) && |
55497cff |
238 | SvIVX(TOPs) != IV_MAX) |
239 | { |
748a9306 |
240 | ++SvIVX(TOPs); |
55497cff |
241 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
748a9306 |
242 | } |
243 | else |
244 | sv_inc(TOPs); |
a0d0e21e |
245 | SvSETMAGIC(TOPs); |
246 | return NORMAL; |
247 | } |
248 | |
249 | PP(pp_or) |
250 | { |
4e35701f |
251 | djSP; |
a0d0e21e |
252 | if (SvTRUE(TOPs)) |
253 | RETURN; |
254 | else { |
255 | --SP; |
256 | RETURNOP(cLOGOP->op_other); |
257 | } |
258 | } |
259 | |
260 | PP(pp_add) |
261 | { |
4e35701f |
262 | djSP; dATARGET; tryAMAGICbin(add,opASSIGN); |
a0d0e21e |
263 | { |
7a4c00b4 |
264 | dPOPTOPnnrl_ul; |
a0d0e21e |
265 | SETn( left + right ); |
266 | RETURN; |
267 | } |
268 | } |
269 | |
270 | PP(pp_aelemfast) |
271 | { |
4e35701f |
272 | djSP; |
a0d0e21e |
273 | AV *av = GvAV((GV*)cSVOP->op_sv); |
533c011a |
274 | U32 lval = PL_op->op_flags & OPf_MOD; |
275 | SV** svp = av_fetch(av, PL_op->op_private, lval); |
3280af22 |
276 | SV *sv = (svp ? *svp : &PL_sv_undef); |
6ff81951 |
277 | EXTEND(SP, 1); |
be6c24e0 |
278 | if (!lval && SvGMAGICAL(sv)) /* see note in pp_helem() */ |
279 | sv = sv_mortalcopy(sv); |
280 | PUSHs(sv); |
a0d0e21e |
281 | RETURN; |
282 | } |
283 | |
284 | PP(pp_join) |
285 | { |
4e35701f |
286 | djSP; dMARK; dTARGET; |
a0d0e21e |
287 | MARK++; |
288 | do_join(TARG, *MARK, MARK, SP); |
289 | SP = MARK; |
290 | SETs(TARG); |
291 | RETURN; |
292 | } |
293 | |
294 | PP(pp_pushre) |
295 | { |
4e35701f |
296 | djSP; |
44a8e56a |
297 | #ifdef DEBUGGING |
298 | /* |
299 | * We ass_u_me that LvTARGOFF() comes first, and that two STRLENs |
300 | * will be enough to hold an OP*. |
301 | */ |
302 | SV* sv = sv_newmortal(); |
303 | sv_upgrade(sv, SVt_PVLV); |
304 | LvTYPE(sv) = '/'; |
533c011a |
305 | Copy(&PL_op, &LvTARGOFF(sv), 1, OP*); |
44a8e56a |
306 | XPUSHs(sv); |
307 | #else |
6b88bc9c |
308 | XPUSHs((SV*)PL_op); |
44a8e56a |
309 | #endif |
a0d0e21e |
310 | RETURN; |
311 | } |
312 | |
313 | /* Oversized hot code. */ |
314 | |
315 | PP(pp_print) |
316 | { |
4e35701f |
317 | djSP; dMARK; dORIGMARK; |
a0d0e21e |
318 | GV *gv; |
319 | IO *io; |
760ac839 |
320 | register PerlIO *fp; |
236988e4 |
321 | MAGIC *mg; |
2d8e6c8d |
322 | STRLEN n_a; |
a0d0e21e |
323 | |
533c011a |
324 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e |
325 | gv = (GV*)*++MARK; |
326 | else |
3280af22 |
327 | gv = PL_defoutgv; |
33c27489 |
328 | if (mg = SvTIED_mg((SV*)gv, 'q')) { |
68dc0745 |
329 | if (MARK == ORIGMARK) { |
a60c0954 |
330 | /* If using default handle then we need to make space to |
331 | * pass object as 1st arg, so move other args up ... |
332 | */ |
4352c267 |
333 | MEXTEND(SP, 1); |
68dc0745 |
334 | ++MARK; |
335 | Move(MARK, MARK + 1, (SP - MARK) + 1, SV*); |
336 | ++SP; |
337 | } |
338 | PUSHMARK(MARK - 1); |
33c27489 |
339 | *MARK = SvTIED_obj((SV*)gv, mg); |
68dc0745 |
340 | PUTBACK; |
236988e4 |
341 | ENTER; |
864dbfa3 |
342 | call_method("PRINT", G_SCALAR); |
236988e4 |
343 | LEAVE; |
344 | SPAGAIN; |
68dc0745 |
345 | MARK = ORIGMARK + 1; |
346 | *MARK = *SP; |
347 | SP = MARK; |
236988e4 |
348 | RETURN; |
349 | } |
a0d0e21e |
350 | if (!(io = GvIO(gv))) { |
599cee73 |
351 | if (ckWARN(WARN_UNOPENED)) { |
748a9306 |
352 | SV* sv = sv_newmortal(); |
af8c498a |
353 | gv_efullname3(sv, gv, Nullch); |
354 | Perl_warner(aTHX_ WARN_UNOPENED, "Filehandle %s never opened", |
355 | SvPV(sv,n_a)); |
748a9306 |
356 | } |
748a9306 |
357 | SETERRNO(EBADF,RMS$_IFI); |
a0d0e21e |
358 | goto just_say_no; |
359 | } |
360 | else if (!(fp = IoOFP(io))) { |
599cee73 |
361 | if (ckWARN2(WARN_CLOSED, WARN_IO)) { |
748a9306 |
362 | SV* sv = sv_newmortal(); |
af8c498a |
363 | gv_efullname3(sv, gv, Nullch); |
a0d0e21e |
364 | if (IoIFP(io)) |
af8c498a |
365 | Perl_warner(aTHX_ WARN_IO, |
366 | "Filehandle %s opened only for input", |
367 | SvPV(sv,n_a)); |
599cee73 |
368 | else if (ckWARN(WARN_CLOSED)) |
af8c498a |
369 | Perl_warner(aTHX_ WARN_CLOSED, |
370 | "print on closed filehandle %s", SvPV(sv,n_a)); |
a0d0e21e |
371 | } |
748a9306 |
372 | SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI); |
a0d0e21e |
373 | goto just_say_no; |
374 | } |
375 | else { |
376 | MARK++; |
3280af22 |
377 | if (PL_ofslen) { |
a0d0e21e |
378 | while (MARK <= SP) { |
379 | if (!do_print(*MARK, fp)) |
380 | break; |
381 | MARK++; |
382 | if (MARK <= SP) { |
3280af22 |
383 | if (PerlIO_write(fp, PL_ofs, PL_ofslen) == 0 || PerlIO_error(fp)) { |
a0d0e21e |
384 | MARK--; |
385 | break; |
386 | } |
387 | } |
388 | } |
389 | } |
390 | else { |
391 | while (MARK <= SP) { |
392 | if (!do_print(*MARK, fp)) |
393 | break; |
394 | MARK++; |
395 | } |
396 | } |
397 | if (MARK <= SP) |
398 | goto just_say_no; |
399 | else { |
3280af22 |
400 | if (PL_orslen) |
401 | if (PerlIO_write(fp, PL_ors, PL_orslen) == 0 || PerlIO_error(fp)) |
a0d0e21e |
402 | goto just_say_no; |
403 | |
404 | if (IoFLAGS(io) & IOf_FLUSH) |
760ac839 |
405 | if (PerlIO_flush(fp) == EOF) |
a0d0e21e |
406 | goto just_say_no; |
407 | } |
408 | } |
409 | SP = ORIGMARK; |
3280af22 |
410 | PUSHs(&PL_sv_yes); |
a0d0e21e |
411 | RETURN; |
412 | |
413 | just_say_no: |
414 | SP = ORIGMARK; |
3280af22 |
415 | PUSHs(&PL_sv_undef); |
a0d0e21e |
416 | RETURN; |
417 | } |
418 | |
419 | PP(pp_rv2av) |
420 | { |
f5284f61 |
421 | djSP; dTOPss; |
a0d0e21e |
422 | AV *av; |
423 | |
424 | if (SvROK(sv)) { |
425 | wasref: |
f5284f61 |
426 | tryAMAGICunDEREF(to_av); |
427 | |
a0d0e21e |
428 | av = (AV*)SvRV(sv); |
429 | if (SvTYPE(av) != SVt_PVAV) |
cea2e8a9 |
430 | DIE(aTHX_ "Not an ARRAY reference"); |
533c011a |
431 | if (PL_op->op_flags & OPf_REF) { |
f5284f61 |
432 | SETs((SV*)av); |
a0d0e21e |
433 | RETURN; |
434 | } |
435 | } |
436 | else { |
437 | if (SvTYPE(sv) == SVt_PVAV) { |
438 | av = (AV*)sv; |
533c011a |
439 | if (PL_op->op_flags & OPf_REF) { |
f5284f61 |
440 | SETs((SV*)av); |
a0d0e21e |
441 | RETURN; |
442 | } |
443 | } |
444 | else { |
67955e0c |
445 | GV *gv; |
446 | |
a0d0e21e |
447 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 |
448 | char *sym; |
2d8e6c8d |
449 | STRLEN n_a; |
748a9306 |
450 | |
a0d0e21e |
451 | if (SvGMAGICAL(sv)) { |
452 | mg_get(sv); |
453 | if (SvROK(sv)) |
454 | goto wasref; |
455 | } |
456 | if (!SvOK(sv)) { |
533c011a |
457 | if (PL_op->op_flags & OPf_REF || |
458 | PL_op->op_private & HINT_STRICT_REFS) |
cea2e8a9 |
459 | DIE(aTHX_ PL_no_usym, "an ARRAY"); |
599cee73 |
460 | if (ckWARN(WARN_UNINITIALIZED)) |
cea2e8a9 |
461 | Perl_warner(aTHX_ WARN_UNINITIALIZED, PL_warn_uninit); |
f5284f61 |
462 | if (GIMME == G_ARRAY) { |
c2444246 |
463 | (void)POPs; |
4633a7c4 |
464 | RETURN; |
f5284f61 |
465 | } |
466 | RETSETUNDEF; |
a0d0e21e |
467 | } |
2d8e6c8d |
468 | sym = SvPV(sv,n_a); |
35cd451c |
469 | if ((PL_op->op_flags & OPf_SPECIAL) && |
470 | !(PL_op->op_flags & OPf_MOD)) |
471 | { |
472 | gv = (GV*)gv_fetchpv(sym, FALSE, SVt_PVAV); |
473 | if (!gv) |
474 | RETSETUNDEF; |
475 | } |
476 | else { |
477 | if (PL_op->op_private & HINT_STRICT_REFS) |
cea2e8a9 |
478 | DIE(aTHX_ PL_no_symref, sym, "an ARRAY"); |
35cd451c |
479 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVAV); |
480 | } |
481 | } |
482 | else { |
67955e0c |
483 | gv = (GV*)sv; |
a0d0e21e |
484 | } |
67955e0c |
485 | av = GvAVn(gv); |
533c011a |
486 | if (PL_op->op_private & OPpLVAL_INTRO) |
67955e0c |
487 | av = save_ary(gv); |
533c011a |
488 | if (PL_op->op_flags & OPf_REF) { |
f5284f61 |
489 | SETs((SV*)av); |
a0d0e21e |
490 | RETURN; |
491 | } |
492 | } |
493 | } |
494 | |
495 | if (GIMME == G_ARRAY) { |
496 | I32 maxarg = AvFILL(av) + 1; |
c2444246 |
497 | (void)POPs; /* XXXX May be optimized away? */ |
93965878 |
498 | EXTEND(SP, maxarg); |
499 | if (SvRMAGICAL(av)) { |
500 | U32 i; |
501 | for (i=0; i < maxarg; i++) { |
502 | SV **svp = av_fetch(av, i, FALSE); |
3280af22 |
503 | SP[i+1] = (svp) ? *svp : &PL_sv_undef; |
93965878 |
504 | } |
505 | } |
506 | else { |
507 | Copy(AvARRAY(av), SP+1, maxarg, SV*); |
508 | } |
a0d0e21e |
509 | SP += maxarg; |
510 | } |
511 | else { |
512 | dTARGET; |
513 | I32 maxarg = AvFILL(av) + 1; |
f5284f61 |
514 | SETi(maxarg); |
a0d0e21e |
515 | } |
516 | RETURN; |
517 | } |
518 | |
519 | PP(pp_rv2hv) |
520 | { |
4e35701f |
521 | djSP; dTOPss; |
a0d0e21e |
522 | HV *hv; |
523 | |
524 | if (SvROK(sv)) { |
525 | wasref: |
f5284f61 |
526 | tryAMAGICunDEREF(to_hv); |
527 | |
a0d0e21e |
528 | hv = (HV*)SvRV(sv); |
c750a3ec |
529 | if (SvTYPE(hv) != SVt_PVHV && SvTYPE(hv) != SVt_PVAV) |
cea2e8a9 |
530 | DIE(aTHX_ "Not a HASH reference"); |
533c011a |
531 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e |
532 | SETs((SV*)hv); |
533 | RETURN; |
534 | } |
535 | } |
536 | else { |
c750a3ec |
537 | if (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) { |
a0d0e21e |
538 | hv = (HV*)sv; |
533c011a |
539 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e |
540 | SETs((SV*)hv); |
541 | RETURN; |
542 | } |
543 | } |
544 | else { |
67955e0c |
545 | GV *gv; |
546 | |
a0d0e21e |
547 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 |
548 | char *sym; |
2d8e6c8d |
549 | STRLEN n_a; |
748a9306 |
550 | |
a0d0e21e |
551 | if (SvGMAGICAL(sv)) { |
552 | mg_get(sv); |
553 | if (SvROK(sv)) |
554 | goto wasref; |
555 | } |
556 | if (!SvOK(sv)) { |
533c011a |
557 | if (PL_op->op_flags & OPf_REF || |
558 | PL_op->op_private & HINT_STRICT_REFS) |
cea2e8a9 |
559 | DIE(aTHX_ PL_no_usym, "a HASH"); |
599cee73 |
560 | if (ckWARN(WARN_UNINITIALIZED)) |
cea2e8a9 |
561 | Perl_warner(aTHX_ WARN_UNINITIALIZED, PL_warn_uninit); |
4633a7c4 |
562 | if (GIMME == G_ARRAY) { |
563 | SP--; |
564 | RETURN; |
565 | } |
a0d0e21e |
566 | RETSETUNDEF; |
567 | } |
2d8e6c8d |
568 | sym = SvPV(sv,n_a); |
35cd451c |
569 | if ((PL_op->op_flags & OPf_SPECIAL) && |
570 | !(PL_op->op_flags & OPf_MOD)) |
571 | { |
572 | gv = (GV*)gv_fetchpv(sym, FALSE, SVt_PVHV); |
573 | if (!gv) |
574 | RETSETUNDEF; |
575 | } |
576 | else { |
577 | if (PL_op->op_private & HINT_STRICT_REFS) |
cea2e8a9 |
578 | DIE(aTHX_ PL_no_symref, sym, "a HASH"); |
35cd451c |
579 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVHV); |
580 | } |
581 | } |
582 | else { |
67955e0c |
583 | gv = (GV*)sv; |
a0d0e21e |
584 | } |
67955e0c |
585 | hv = GvHVn(gv); |
533c011a |
586 | if (PL_op->op_private & OPpLVAL_INTRO) |
67955e0c |
587 | hv = save_hash(gv); |
533c011a |
588 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e |
589 | SETs((SV*)hv); |
590 | RETURN; |
591 | } |
592 | } |
593 | } |
594 | |
595 | if (GIMME == G_ARRAY) { /* array wanted */ |
3280af22 |
596 | *PL_stack_sp = (SV*)hv; |
cea2e8a9 |
597 | return do_kv(); |
a0d0e21e |
598 | } |
599 | else { |
600 | dTARGET; |
4b154ab5 |
601 | if (SvTYPE(hv) == SVt_PVAV) |
602 | hv = avhv_keys((AV*)hv); |
46fc3d4c |
603 | if (HvFILL(hv)) |
cea2e8a9 |
604 | Perl_sv_setpvf(aTHX_ TARG, "%ld/%ld", |
46fc3d4c |
605 | (long)HvFILL(hv), (long)HvMAX(hv) + 1); |
a0d0e21e |
606 | else |
607 | sv_setiv(TARG, 0); |
c750a3ec |
608 | |
a0d0e21e |
609 | SETTARG; |
610 | RETURN; |
611 | } |
612 | } |
613 | |
614 | PP(pp_aassign) |
615 | { |
4e35701f |
616 | djSP; |
3280af22 |
617 | SV **lastlelem = PL_stack_sp; |
618 | SV **lastrelem = PL_stack_base + POPMARK; |
619 | SV **firstrelem = PL_stack_base + POPMARK + 1; |
a0d0e21e |
620 | SV **firstlelem = lastrelem + 1; |
621 | |
622 | register SV **relem; |
623 | register SV **lelem; |
624 | |
625 | register SV *sv; |
626 | register AV *ary; |
627 | |
54310121 |
628 | I32 gimme; |
a0d0e21e |
629 | HV *hash; |
630 | I32 i; |
631 | int magic; |
632 | |
3280af22 |
633 | PL_delaymagic = DM_DELAY; /* catch simultaneous items */ |
a0d0e21e |
634 | |
635 | /* If there's a common identifier on both sides we have to take |
636 | * special care that assigning the identifier on the left doesn't |
637 | * clobber a value on the right that's used later in the list. |
638 | */ |
533c011a |
639 | if (PL_op->op_private & OPpASSIGN_COMMON) { |
cc5e57d2 |
640 | EXTEND_MORTAL(lastrelem - firstrelem + 1); |
a0d0e21e |
641 | for (relem = firstrelem; relem <= lastrelem; relem++) { |
642 | /*SUPPRESS 560*/ |
a1f49e72 |
643 | if (sv = *relem) { |
644 | TAINT_NOT; /* Each item is independent */ |
a0d0e21e |
645 | *relem = sv_mortalcopy(sv); |
a1f49e72 |
646 | } |
a0d0e21e |
647 | } |
648 | } |
649 | |
650 | relem = firstrelem; |
651 | lelem = firstlelem; |
652 | ary = Null(AV*); |
653 | hash = Null(HV*); |
654 | while (lelem <= lastlelem) { |
bbce6d69 |
655 | TAINT_NOT; /* Each item stands on its own, taintwise. */ |
a0d0e21e |
656 | sv = *lelem++; |
657 | switch (SvTYPE(sv)) { |
658 | case SVt_PVAV: |
659 | ary = (AV*)sv; |
748a9306 |
660 | magic = SvMAGICAL(ary) != 0; |
a0d0e21e |
661 | |
662 | av_clear(ary); |
7e42bd57 |
663 | av_extend(ary, lastrelem - relem); |
a0d0e21e |
664 | i = 0; |
665 | while (relem <= lastrelem) { /* gobble up all the rest */ |
5117ca91 |
666 | SV **didstore; |
a0d0e21e |
667 | sv = NEWSV(28,0); |
668 | assert(*relem); |
669 | sv_setsv(sv,*relem); |
670 | *(relem++) = sv; |
5117ca91 |
671 | didstore = av_store(ary,i++,sv); |
672 | if (magic) { |
fb73857a |
673 | if (SvSMAGICAL(sv)) |
674 | mg_set(sv); |
5117ca91 |
675 | if (!didstore) |
8127e0e3 |
676 | sv_2mortal(sv); |
5117ca91 |
677 | } |
bbce6d69 |
678 | TAINT_NOT; |
a0d0e21e |
679 | } |
680 | break; |
681 | case SVt_PVHV: { |
a0d0e21e |
682 | SV *tmpstr; |
683 | |
684 | hash = (HV*)sv; |
748a9306 |
685 | magic = SvMAGICAL(hash) != 0; |
a0d0e21e |
686 | hv_clear(hash); |
687 | |
688 | while (relem < lastrelem) { /* gobble up all the rest */ |
5117ca91 |
689 | HE *didstore; |
4633a7c4 |
690 | if (*relem) |
a0d0e21e |
691 | sv = *(relem++); |
4633a7c4 |
692 | else |
3280af22 |
693 | sv = &PL_sv_no, relem++; |
a0d0e21e |
694 | tmpstr = NEWSV(29,0); |
695 | if (*relem) |
696 | sv_setsv(tmpstr,*relem); /* value */ |
697 | *(relem++) = tmpstr; |
5117ca91 |
698 | didstore = hv_store_ent(hash,sv,tmpstr,0); |
699 | if (magic) { |
fb73857a |
700 | if (SvSMAGICAL(tmpstr)) |
701 | mg_set(tmpstr); |
5117ca91 |
702 | if (!didstore) |
8127e0e3 |
703 | sv_2mortal(tmpstr); |
5117ca91 |
704 | } |
bbce6d69 |
705 | TAINT_NOT; |
8e07c86e |
706 | } |
6a0deba8 |
707 | if (relem == lastrelem) { |
708 | if (*relem) { |
709 | HE *didstore; |
599cee73 |
710 | if (ckWARN(WARN_UNSAFE)) { |
6a0deba8 |
711 | if (relem == firstrelem && |
712 | SvROK(*relem) && |
713 | ( SvTYPE(SvRV(*relem)) == SVt_PVAV || |
714 | SvTYPE(SvRV(*relem)) == SVt_PVHV ) ) |
cea2e8a9 |
715 | Perl_warner(aTHX_ WARN_UNSAFE, "Reference found where even-sized list expected"); |
6a0deba8 |
716 | else |
cea2e8a9 |
717 | Perl_warner(aTHX_ WARN_UNSAFE, "Odd number of elements in hash assignment"); |
6a0deba8 |
718 | } |
719 | tmpstr = NEWSV(29,0); |
720 | didstore = hv_store_ent(hash,*relem,tmpstr,0); |
721 | if (magic) { |
722 | if (SvSMAGICAL(tmpstr)) |
723 | mg_set(tmpstr); |
724 | if (!didstore) |
8127e0e3 |
725 | sv_2mortal(tmpstr); |
6a0deba8 |
726 | } |
727 | TAINT_NOT; |
728 | } |
729 | relem++; |
1930e939 |
730 | } |
a0d0e21e |
731 | } |
732 | break; |
733 | default: |
6fc92669 |
734 | if (SvIMMORTAL(sv)) { |
735 | if (relem <= lastrelem) |
736 | relem++; |
737 | break; |
a0d0e21e |
738 | } |
739 | if (relem <= lastrelem) { |
740 | sv_setsv(sv, *relem); |
741 | *(relem++) = sv; |
742 | } |
743 | else |
3280af22 |
744 | sv_setsv(sv, &PL_sv_undef); |
a0d0e21e |
745 | SvSETMAGIC(sv); |
746 | break; |
747 | } |
748 | } |
3280af22 |
749 | if (PL_delaymagic & ~DM_DELAY) { |
750 | if (PL_delaymagic & DM_UID) { |
a0d0e21e |
751 | #ifdef HAS_SETRESUID |
b28d0864 |
752 | (void)setresuid(PL_uid,PL_euid,(Uid_t)-1); |
56febc5e |
753 | #else |
754 | # ifdef HAS_SETREUID |
3280af22 |
755 | (void)setreuid(PL_uid,PL_euid); |
56febc5e |
756 | # else |
757 | # ifdef HAS_SETRUID |
b28d0864 |
758 | if ((PL_delaymagic & DM_UID) == DM_RUID) { |
759 | (void)setruid(PL_uid); |
760 | PL_delaymagic &= ~DM_RUID; |
a0d0e21e |
761 | } |
56febc5e |
762 | # endif /* HAS_SETRUID */ |
763 | # ifdef HAS_SETEUID |
b28d0864 |
764 | if ((PL_delaymagic & DM_UID) == DM_EUID) { |
765 | (void)seteuid(PL_uid); |
766 | PL_delaymagic &= ~DM_EUID; |
a0d0e21e |
767 | } |
56febc5e |
768 | # endif /* HAS_SETEUID */ |
b28d0864 |
769 | if (PL_delaymagic & DM_UID) { |
770 | if (PL_uid != PL_euid) |
cea2e8a9 |
771 | DIE(aTHX_ "No setreuid available"); |
b28d0864 |
772 | (void)PerlProc_setuid(PL_uid); |
a0d0e21e |
773 | } |
56febc5e |
774 | # endif /* HAS_SETREUID */ |
775 | #endif /* HAS_SETRESUID */ |
3280af22 |
776 | PL_uid = (int)PerlProc_getuid(); |
777 | PL_euid = (int)PerlProc_geteuid(); |
a0d0e21e |
778 | } |
3280af22 |
779 | if (PL_delaymagic & DM_GID) { |
a0d0e21e |
780 | #ifdef HAS_SETRESGID |
b28d0864 |
781 | (void)setresgid(PL_gid,PL_egid,(Gid_t)-1); |
56febc5e |
782 | #else |
783 | # ifdef HAS_SETREGID |
3280af22 |
784 | (void)setregid(PL_gid,PL_egid); |
56febc5e |
785 | # else |
786 | # ifdef HAS_SETRGID |
b28d0864 |
787 | if ((PL_delaymagic & DM_GID) == DM_RGID) { |
788 | (void)setrgid(PL_gid); |
789 | PL_delaymagic &= ~DM_RGID; |
a0d0e21e |
790 | } |
56febc5e |
791 | # endif /* HAS_SETRGID */ |
792 | # ifdef HAS_SETEGID |
b28d0864 |
793 | if ((PL_delaymagic & DM_GID) == DM_EGID) { |
794 | (void)setegid(PL_gid); |
795 | PL_delaymagic &= ~DM_EGID; |
a0d0e21e |
796 | } |
56febc5e |
797 | # endif /* HAS_SETEGID */ |
b28d0864 |
798 | if (PL_delaymagic & DM_GID) { |
799 | if (PL_gid != PL_egid) |
cea2e8a9 |
800 | DIE(aTHX_ "No setregid available"); |
b28d0864 |
801 | (void)PerlProc_setgid(PL_gid); |
a0d0e21e |
802 | } |
56febc5e |
803 | # endif /* HAS_SETREGID */ |
804 | #endif /* HAS_SETRESGID */ |
3280af22 |
805 | PL_gid = (int)PerlProc_getgid(); |
806 | PL_egid = (int)PerlProc_getegid(); |
a0d0e21e |
807 | } |
3280af22 |
808 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
a0d0e21e |
809 | } |
3280af22 |
810 | PL_delaymagic = 0; |
54310121 |
811 | |
812 | gimme = GIMME_V; |
813 | if (gimme == G_VOID) |
814 | SP = firstrelem - 1; |
815 | else if (gimme == G_SCALAR) { |
816 | dTARGET; |
817 | SP = firstrelem; |
818 | SETi(lastrelem - firstrelem + 1); |
819 | } |
820 | else { |
a0d0e21e |
821 | if (ary || hash) |
822 | SP = lastrelem; |
823 | else |
824 | SP = firstrelem + (lastlelem - firstlelem); |
0c8c7a05 |
825 | lelem = firstlelem + (relem - firstrelem); |
5f05dabc |
826 | while (relem <= SP) |
3280af22 |
827 | *relem++ = (lelem <= lastlelem) ? *lelem++ : &PL_sv_undef; |
a0d0e21e |
828 | } |
54310121 |
829 | RETURN; |
a0d0e21e |
830 | } |
831 | |
8782bef2 |
832 | PP(pp_qr) |
833 | { |
834 | djSP; |
835 | register PMOP *pm = cPMOP; |
836 | SV *rv = sv_newmortal(); |
57668c4d |
837 | SV *sv = newSVrv(rv, "Regexp"); |
8782bef2 |
838 | sv_magic(sv,(SV*)ReREFCNT_inc(pm->op_pmregexp),'r',0,0); |
839 | RETURNX(PUSHs(rv)); |
840 | } |
841 | |
a0d0e21e |
842 | PP(pp_match) |
843 | { |
4e35701f |
844 | djSP; dTARG; |
a0d0e21e |
845 | register PMOP *pm = cPMOP; |
846 | register char *t; |
847 | register char *s; |
848 | char *strend; |
849 | I32 global; |
f722798b |
850 | I32 r_flags = REXEC_CHECKED; |
851 | char *truebase; /* Start of string */ |
d9f97599 |
852 | register REGEXP *rx = pm->op_pmregexp; |
b3eb6a9b |
853 | bool rxtainted; |
a0d0e21e |
854 | I32 gimme = GIMME; |
855 | STRLEN len; |
748a9306 |
856 | I32 minmatch = 0; |
3280af22 |
857 | I32 oldsave = PL_savestack_ix; |
f86702cc |
858 | I32 update_minmatch = 1; |
e60df1fa |
859 | I32 had_zerolen = 0; |
a0d0e21e |
860 | |
533c011a |
861 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e |
862 | TARG = POPs; |
863 | else { |
54b9620d |
864 | TARG = DEFSV; |
a0d0e21e |
865 | EXTEND(SP,1); |
866 | } |
c277df42 |
867 | PUTBACK; /* EVAL blocks need stack_sp. */ |
a0d0e21e |
868 | s = SvPV(TARG, len); |
869 | strend = s + len; |
870 | if (!s) |
cea2e8a9 |
871 | DIE(aTHX_ "panic: do_match"); |
b3eb6a9b |
872 | rxtainted = ((pm->op_pmdynflags & PMdf_TAINTED) || |
3280af22 |
873 | (PL_tainted && (pm->op_pmflags & PMf_RETAINT))); |
9212bbba |
874 | TAINT_NOT; |
a0d0e21e |
875 | |
48c036b1 |
876 | if (pm->op_pmdynflags & PMdf_USED) { |
c277df42 |
877 | failure: |
a0d0e21e |
878 | if (gimme == G_ARRAY) |
879 | RETURN; |
880 | RETPUSHNO; |
881 | } |
882 | |
3280af22 |
883 | if (!rx->prelen && PL_curpm) { |
884 | pm = PL_curpm; |
d9f97599 |
885 | rx = pm->op_pmregexp; |
a0d0e21e |
886 | } |
d9f97599 |
887 | if (rx->minlen > len) goto failure; |
c277df42 |
888 | |
a0d0e21e |
889 | truebase = t = s; |
ad94a511 |
890 | |
891 | /* XXXX What part of this is needed with true \G-support? */ |
a0d0e21e |
892 | if (global = pm->op_pmflags & PMf_GLOBAL) { |
cf93c79d |
893 | rx->startp[0] = -1; |
a0d0e21e |
894 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
895 | MAGIC* mg = mg_find(TARG, 'g'); |
565764a8 |
896 | if (mg && mg->mg_len >= 0) { |
b7a35066 |
897 | if (!(rx->reganch & ROPT_GPOS_SEEN)) |
cf93c79d |
898 | rx->endp[0] = rx->startp[0] = mg->mg_len; |
0ef3e39e |
899 | else if (rx->reganch & ROPT_ANCH_GPOS) { |
900 | r_flags |= REXEC_IGNOREPOS; |
cf93c79d |
901 | rx->endp[0] = rx->startp[0] = mg->mg_len; |
0ef3e39e |
902 | } |
748a9306 |
903 | minmatch = (mg->mg_flags & MGf_MINMATCH); |
f86702cc |
904 | update_minmatch = 0; |
748a9306 |
905 | } |
a0d0e21e |
906 | } |
907 | } |
0ef3e39e |
908 | if ((gimme != G_ARRAY && !global && rx->nparens) |
909 | || SvTEMP(TARG) || PL_sawampersand) |
910 | r_flags |= REXEC_COPY_STR; |
f722798b |
911 | if (SvSCREAM(TARG)) |
22e551b9 |
912 | r_flags |= REXEC_SCREAM; |
913 | |
a0d0e21e |
914 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
3280af22 |
915 | SAVEINT(PL_multiline); |
916 | PL_multiline = pm->op_pmflags & PMf_MULTILINE; |
a0d0e21e |
917 | } |
918 | |
919 | play_it_again: |
cf93c79d |
920 | if (global && rx->startp[0] != -1) { |
921 | t = s = rx->endp[0] + truebase; |
d9f97599 |
922 | if ((s + rx->minlen) > strend) |
a0d0e21e |
923 | goto nope; |
f86702cc |
924 | if (update_minmatch++) |
e60df1fa |
925 | minmatch = had_zerolen; |
a0d0e21e |
926 | } |
f722798b |
927 | if (rx->reganch & RE_USE_INTUIT) { |
928 | s = CALLREG_INTUIT_START(aTHX_ rx, TARG, s, strend, r_flags, NULL); |
929 | |
930 | if (!s) |
931 | goto nope; |
932 | if ( (rx->reganch & ROPT_CHECK_ALL) |
933 | && !PL_sawampersand |
934 | && ((rx->reganch & ROPT_NOSCAN) |
935 | || !((rx->reganch & RE_INTUIT_TAIL) |
936 | && (r_flags & REXEC_SCREAM)))) |
937 | goto yup; |
a0d0e21e |
938 | } |
cea2e8a9 |
939 | if (CALLREGEXEC(aTHX_ rx, s, strend, truebase, minmatch, TARG, NULL, r_flags)) |
bbce6d69 |
940 | { |
3280af22 |
941 | PL_curpm = pm; |
a0d0e21e |
942 | if (pm->op_pmflags & PMf_ONCE) |
48c036b1 |
943 | pm->op_pmdynflags |= PMdf_USED; |
a0d0e21e |
944 | goto gotcha; |
945 | } |
946 | else |
947 | goto ret_no; |
948 | /*NOTREACHED*/ |
949 | |
950 | gotcha: |
72311751 |
951 | if (rxtainted) |
952 | RX_MATCH_TAINTED_on(rx); |
953 | TAINT_IF(RX_MATCH_TAINTED(rx)); |
a0d0e21e |
954 | if (gimme == G_ARRAY) { |
955 | I32 iters, i, len; |
956 | |
d9f97599 |
957 | iters = rx->nparens; |
a0d0e21e |
958 | if (global && !iters) |
959 | i = 1; |
960 | else |
961 | i = 0; |
c277df42 |
962 | SPAGAIN; /* EVAL blocks could move the stack. */ |
a0d0e21e |
963 | EXTEND(SP, iters + i); |
bbce6d69 |
964 | EXTEND_MORTAL(iters + i); |
a0d0e21e |
965 | for (i = !i; i <= iters; i++) { |
966 | PUSHs(sv_newmortal()); |
967 | /*SUPPRESS 560*/ |
cf93c79d |
968 | if ((rx->startp[i] != -1) && rx->endp[i] != -1 ) { |
969 | len = rx->endp[i] - rx->startp[i]; |
970 | s = rx->startp[i] + truebase; |
a0d0e21e |
971 | sv_setpvn(*SP, s, len); |
972 | } |
973 | } |
974 | if (global) { |
cf93c79d |
975 | had_zerolen = (rx->startp[0] != -1 |
976 | && rx->startp[0] == rx->endp[0]); |
c277df42 |
977 | PUTBACK; /* EVAL blocks may use stack */ |
cf93c79d |
978 | r_flags |= REXEC_IGNOREPOS | REXEC_NOT_FIRST; |
a0d0e21e |
979 | goto play_it_again; |
980 | } |
f7e33566 |
981 | else if (!iters) |
bde848c5 |
982 | XPUSHs(&PL_sv_yes); |
4633a7c4 |
983 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
984 | RETURN; |
985 | } |
986 | else { |
987 | if (global) { |
988 | MAGIC* mg = 0; |
989 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) |
990 | mg = mg_find(TARG, 'g'); |
991 | if (!mg) { |
992 | sv_magic(TARG, (SV*)0, 'g', Nullch, 0); |
993 | mg = mg_find(TARG, 'g'); |
994 | } |
cf93c79d |
995 | if (rx->startp[0] != -1) { |
996 | mg->mg_len = rx->endp[0]; |
d9f97599 |
997 | if (rx->startp[0] == rx->endp[0]) |
748a9306 |
998 | mg->mg_flags |= MGf_MINMATCH; |
999 | else |
1000 | mg->mg_flags &= ~MGf_MINMATCH; |
1001 | } |
a0d0e21e |
1002 | } |
4633a7c4 |
1003 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1004 | RETPUSHYES; |
1005 | } |
1006 | |
f722798b |
1007 | yup: /* Confirmed by INTUIT */ |
72311751 |
1008 | if (rxtainted) |
1009 | RX_MATCH_TAINTED_on(rx); |
1010 | TAINT_IF(RX_MATCH_TAINTED(rx)); |
3280af22 |
1011 | PL_curpm = pm; |
a0d0e21e |
1012 | if (pm->op_pmflags & PMf_ONCE) |
48c036b1 |
1013 | pm->op_pmdynflags |= PMdf_USED; |
cf93c79d |
1014 | if (RX_MATCH_COPIED(rx)) |
1015 | Safefree(rx->subbeg); |
1016 | RX_MATCH_COPIED_off(rx); |
1017 | rx->subbeg = Nullch; |
a0d0e21e |
1018 | if (global) { |
d9f97599 |
1019 | rx->subbeg = truebase; |
cf93c79d |
1020 | rx->startp[0] = s - truebase; |
f722798b |
1021 | rx->endp[0] = s - truebase + rx->minlen; |
cf93c79d |
1022 | rx->sublen = strend - truebase; |
a0d0e21e |
1023 | goto gotcha; |
cf93c79d |
1024 | } |
3280af22 |
1025 | if (PL_sawampersand) { |
cf93c79d |
1026 | I32 off; |
a0d0e21e |
1027 | |
cf93c79d |
1028 | rx->subbeg = savepvn(t, strend - t); |
1029 | rx->sublen = strend - t; |
1030 | RX_MATCH_COPIED_on(rx); |
1031 | off = rx->startp[0] = s - t; |
f722798b |
1032 | rx->endp[0] = off + rx->minlen; |
cf93c79d |
1033 | } |
1034 | else { /* startp/endp are used by @- @+. */ |
1035 | rx->startp[0] = s - truebase; |
f722798b |
1036 | rx->endp[0] = s - truebase + rx->minlen; |
a0d0e21e |
1037 | } |
4633a7c4 |
1038 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1039 | RETPUSHYES; |
1040 | |
1041 | nope: |
a0d0e21e |
1042 | ret_no: |
c90c0ff4 |
1043 | if (global && !(pm->op_pmflags & PMf_CONTINUE)) { |
a0d0e21e |
1044 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
1045 | MAGIC* mg = mg_find(TARG, 'g'); |
1046 | if (mg) |
565764a8 |
1047 | mg->mg_len = -1; |
a0d0e21e |
1048 | } |
1049 | } |
4633a7c4 |
1050 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1051 | if (gimme == G_ARRAY) |
1052 | RETURN; |
1053 | RETPUSHNO; |
1054 | } |
1055 | |
1056 | OP * |
864dbfa3 |
1057 | Perl_do_readline(pTHX) |
a0d0e21e |
1058 | { |
1059 | dSP; dTARGETSTACKED; |
1060 | register SV *sv; |
1061 | STRLEN tmplen = 0; |
1062 | STRLEN offset; |
760ac839 |
1063 | PerlIO *fp; |
3280af22 |
1064 | register IO *io = GvIO(PL_last_in_gv); |
533c011a |
1065 | register I32 type = PL_op->op_type; |
54310121 |
1066 | I32 gimme = GIMME_V; |
e79b0511 |
1067 | MAGIC *mg; |
a0d0e21e |
1068 | |
33c27489 |
1069 | if (mg = SvTIED_mg((SV*)PL_last_in_gv, 'q')) { |
e79b0511 |
1070 | PUSHMARK(SP); |
33c27489 |
1071 | XPUSHs(SvTIED_obj((SV*)PL_last_in_gv, mg)); |
e79b0511 |
1072 | PUTBACK; |
1073 | ENTER; |
864dbfa3 |
1074 | call_method("READLINE", gimme); |
e79b0511 |
1075 | LEAVE; |
1076 | SPAGAIN; |
54310121 |
1077 | if (gimme == G_SCALAR) |
1078 | SvSetMagicSV_nosteal(TARG, TOPs); |
e79b0511 |
1079 | RETURN; |
1080 | } |
a0d0e21e |
1081 | fp = Nullfp; |
1082 | if (io) { |
1083 | fp = IoIFP(io); |
1084 | if (!fp) { |
1085 | if (IoFLAGS(io) & IOf_ARGV) { |
1086 | if (IoFLAGS(io) & IOf_START) { |
1087 | IoFLAGS(io) &= ~IOf_START; |
1088 | IoLINES(io) = 0; |
3280af22 |
1089 | if (av_len(GvAVn(PL_last_in_gv)) < 0) { |
9d116dd7 |
1090 | do_open(PL_last_in_gv,"-",1,FALSE,O_RDONLY,0,Nullfp); |
3280af22 |
1091 | sv_setpvn(GvSV(PL_last_in_gv), "-", 1); |
1092 | SvSETMAGIC(GvSV(PL_last_in_gv)); |
a2008d6d |
1093 | fp = IoIFP(io); |
1094 | goto have_fp; |
a0d0e21e |
1095 | } |
1096 | } |
3280af22 |
1097 | fp = nextargv(PL_last_in_gv); |
a0d0e21e |
1098 | if (!fp) { /* Note: fp != IoIFP(io) */ |
3280af22 |
1099 | (void)do_close(PL_last_in_gv, FALSE); /* now it does*/ |
a0d0e21e |
1100 | IoFLAGS(io) |= IOf_START; |
1101 | } |
1102 | } |
1103 | else if (type == OP_GLOB) { |
1104 | SV *tmpcmd = NEWSV(55, 0); |
1105 | SV *tmpglob = POPs; |
1106 | ENTER; |
1107 | SAVEFREESV(tmpcmd); |
1108 | #ifdef VMS /* expand the wildcards right here, rather than opening a pipe, */ |
1109 | /* since spawning off a process is a real performance hit */ |
1110 | { |
1111 | #include <descrip.h> |
1112 | #include <lib$routines.h> |
1113 | #include <nam.h> |
1114 | #include <rmsdef.h> |
1115 | char rslt[NAM$C_MAXRSS+1+sizeof(unsigned short int)] = {'\0','\0'}; |
1116 | char vmsspec[NAM$C_MAXRSS+1]; |
1117 | char *rstr = rslt + sizeof(unsigned short int), *begin, *end, *cp; |
1118 | char tmpfnam[L_tmpnam] = "SYS$SCRATCH:"; |
1119 | $DESCRIPTOR(dfltdsc,"SYS$DISK:[]*.*;"); |
760ac839 |
1120 | PerlIO *tmpfp; |
a0d0e21e |
1121 | STRLEN i; |
1122 | struct dsc$descriptor_s wilddsc |
1123 | = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0}; |
1124 | struct dsc$descriptor_vs rsdsc |
1125 | = {sizeof rslt, DSC$K_DTYPE_VT, DSC$K_CLASS_VS, rslt}; |
1126 | unsigned long int cxt = 0, sts = 0, ok = 1, hasdir = 0, hasver = 0, isunix = 0; |
1127 | |
1128 | /* We could find out if there's an explicit dev/dir or version |
1129 | by peeking into lib$find_file's internal context at |
1130 | ((struct NAM *)((struct FAB *)cxt)->fab$l_nam)->nam$l_fnb |
1131 | but that's unsupported, so I don't want to do it now and |
1132 | have it bite someone in the future. */ |
6ad3d225 |
1133 | strcat(tmpfnam,PerlLIO_tmpnam(NULL)); |
a0d0e21e |
1134 | cp = SvPV(tmpglob,i); |
1135 | for (; i; i--) { |
1136 | if (cp[i] == ';') hasver = 1; |
1137 | if (cp[i] == '.') { |
1138 | if (sts) hasver = 1; |
1139 | else sts = 1; |
1140 | } |
1141 | if (cp[i] == '/') { |
1142 | hasdir = isunix = 1; |
1143 | break; |
748a9306 |
1144 | } |
a0d0e21e |
1145 | if (cp[i] == ']' || cp[i] == '>' || cp[i] == ':') { |
1146 | hasdir = 1; |
1147 | break; |
1148 | } |
1149 | } |
760ac839 |
1150 | if ((tmpfp = PerlIO_open(tmpfnam,"w+","fop=dlt")) != NULL) { |
09b7f37c |
1151 | Stat_t st; |
c6ed36e1 |
1152 | if (!PerlLIO_stat(SvPVX(tmpglob),&st) && S_ISDIR(st.st_mode)) |
09b7f37c |
1153 | ok = ((wilddsc.dsc$a_pointer = tovmspath(SvPVX(tmpglob),vmsspec)) != NULL); |
1154 | else ok = ((wilddsc.dsc$a_pointer = tovmsspec(SvPVX(tmpglob),vmsspec)) != NULL); |
a0d0e21e |
1155 | if (ok) wilddsc.dsc$w_length = (unsigned short int) strlen(wilddsc.dsc$a_pointer); |
1156 | while (ok && ((sts = lib$find_file(&wilddsc,&rsdsc,&cxt, |
1157 | &dfltdsc,NULL,NULL,NULL))&1)) { |
1158 | end = rstr + (unsigned long int) *rslt; |
1159 | if (!hasver) while (*end != ';') end--; |
1160 | *(end++) = '\n'; *end = '\0'; |
1161 | for (cp = rstr; *cp; cp++) *cp = _tolower(*cp); |
1162 | if (hasdir) { |
f86702cc |
1163 | if (isunix) trim_unixpath(rstr,SvPVX(tmpglob),1); |
a0d0e21e |
1164 | begin = rstr; |
1165 | } |
1166 | else { |
1167 | begin = end; |
1168 | while (*(--begin) != ']' && *begin != '>') ; |
1169 | ++begin; |
1170 | } |
760ac839 |
1171 | ok = (PerlIO_puts(tmpfp,begin) != EOF); |
a0d0e21e |
1172 | } |
1173 | if (cxt) (void)lib$find_file_end(&cxt); |
748a9306 |
1174 | if (ok && sts != RMS$_NMF && |
1175 | sts != RMS$_DNF && sts != RMS$_FNF) ok = 0; |
a0d0e21e |
1176 | if (!ok) { |
c07a80fd |
1177 | if (!(sts & 1)) { |
1178 | SETERRNO((sts == RMS$_SYN ? EINVAL : EVMSERR),sts); |
1179 | } |
760ac839 |
1180 | PerlIO_close(tmpfp); |
a0d0e21e |
1181 | fp = NULL; |
1182 | } |
1183 | else { |
760ac839 |
1184 | PerlIO_rewind(tmpfp); |
a0d0e21e |
1185 | IoTYPE(io) = '<'; |
1186 | IoIFP(io) = fp = tmpfp; |
1e422769 |
1187 | IoFLAGS(io) &= ~IOf_UNTAINT; /* maybe redundant */ |
a0d0e21e |
1188 | } |
1189 | } |
1190 | } |
1191 | #else /* !VMS */ |
1192 | #ifdef DOSISH |
67955e0c |
1193 | #ifdef OS2 |
1194 | sv_setpv(tmpcmd, "for a in "); |
1195 | sv_catsv(tmpcmd, tmpglob); |
1196 | sv_catpv(tmpcmd, "; do echo \"$a\\0\\c\"; done |"); |
1197 | #else |
39e571d4 |
1198 | #ifdef DJGPP |
1199 | sv_setpv(tmpcmd, "/dev/dosglob/"); /* File System Extension */ |
1200 | sv_catsv(tmpcmd, tmpglob); |
1201 | #else |
a0d0e21e |
1202 | sv_setpv(tmpcmd, "perlglob "); |
1203 | sv_catsv(tmpcmd, tmpglob); |
1204 | sv_catpv(tmpcmd, " |"); |
39e571d4 |
1205 | #endif /* !DJGPP */ |
67955e0c |
1206 | #endif /* !OS2 */ |
1207 | #else /* !DOSISH */ |
1208 | #if defined(CSH) |
3280af22 |
1209 | sv_setpvn(tmpcmd, PL_cshname, PL_cshlen); |
a0d0e21e |
1210 | sv_catpv(tmpcmd, " -cf 'set nonomatch; glob "); |
1211 | sv_catsv(tmpcmd, tmpglob); |
16d20bd9 |
1212 | sv_catpv(tmpcmd, "' 2>/dev/null |"); |
a0d0e21e |
1213 | #else |
1214 | sv_setpv(tmpcmd, "echo "); |
1215 | sv_catsv(tmpcmd, tmpglob); |
1216 | #if 'z' - 'a' == 25 |
1217 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\012\\012\\012\\012'|"); |
1218 | #else |
1219 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\n\\n\\n\\n'|"); |
1220 | #endif |
1221 | #endif /* !CSH */ |
67955e0c |
1222 | #endif /* !DOSISH */ |
3280af22 |
1223 | (void)do_open(PL_last_in_gv, SvPVX(tmpcmd), SvCUR(tmpcmd), |
9d116dd7 |
1224 | FALSE, O_RDONLY, 0, Nullfp); |
a0d0e21e |
1225 | fp = IoIFP(io); |
1226 | #endif /* !VMS */ |
1227 | LEAVE; |
1228 | } |
1229 | } |
1230 | else if (type == OP_GLOB) |
1231 | SP--; |
af8c498a |
1232 | else if (ckWARN(WARN_IO) /* stdout/stderr or other write fh */ |
1233 | && (IoTYPE(io) == '>' || fp == PerlIO_stdout() |
1234 | || fp == PerlIO_stderr())) |
1235 | { |
1236 | SV* sv = sv_newmortal(); |
1237 | gv_efullname3(sv, PL_last_in_gv, Nullch); |
1238 | Perl_warner(aTHX_ WARN_IO, "Filehandle %s opened only for output", |
1239 | SvPV_nolen(sv)); |
1240 | } |
a0d0e21e |
1241 | } |
1242 | if (!fp) { |
3f4520fe |
1243 | if (ckWARN(WARN_CLOSED) && io && !(IoFLAGS(io) & IOf_START)) { |
1244 | if (type == OP_GLOB) |
af8c498a |
1245 | Perl_warner(aTHX_ WARN_CLOSED, |
1246 | "glob failed (can't start child: %s)", |
1247 | Strerror(errno)); |
1248 | else { |
1249 | SV* sv = sv_newmortal(); |
1250 | gv_efullname3(sv, PL_last_in_gv, Nullch); |
1251 | Perl_warner(aTHX_ WARN_CLOSED, |
1252 | "Read on closed filehandle %s", |
1253 | SvPV_nolen(sv)); |
1254 | } |
3f4520fe |
1255 | } |
54310121 |
1256 | if (gimme == G_SCALAR) { |
a0d0e21e |
1257 | (void)SvOK_off(TARG); |
1258 | PUSHTARG; |
1259 | } |
1260 | RETURN; |
1261 | } |
a2008d6d |
1262 | have_fp: |
54310121 |
1263 | if (gimme == G_SCALAR) { |
a0d0e21e |
1264 | sv = TARG; |
9607fc9c |
1265 | if (SvROK(sv)) |
1266 | sv_unref(sv); |
a0d0e21e |
1267 | (void)SvUPGRADE(sv, SVt_PV); |
1268 | tmplen = SvLEN(sv); /* remember if already alloced */ |
1269 | if (!tmplen) |
1270 | Sv_Grow(sv, 80); /* try short-buffering it */ |
1271 | if (type == OP_RCATLINE) |
1272 | offset = SvCUR(sv); |
1273 | else |
1274 | offset = 0; |
1275 | } |
54310121 |
1276 | else { |
1277 | sv = sv_2mortal(NEWSV(57, 80)); |
1278 | offset = 0; |
1279 | } |
fbad3eb5 |
1280 | |
1281 | /* flip-flop EOF state for a snarfed empty file */ |
1282 | #define SNARF_EOF(gimme,rs,io,sv) \ |
1283 | ((gimme != G_SCALAR || SvCUR(sv) \ |
1284 | || (IoFLAGS(io) & IOf_NOLINE) || IoLINES(io) || !RsSNARF(rs)) \ |
1285 | ? ((IoFLAGS(io) &= ~IOf_NOLINE), TRUE) \ |
1286 | : ((IoFLAGS(io) |= IOf_NOLINE), FALSE)) |
1287 | |
a0d0e21e |
1288 | for (;;) { |
fbad3eb5 |
1289 | if (!sv_gets(sv, fp, offset) |
1290 | && (type == OP_GLOB || SNARF_EOF(gimme, PL_rs, io, sv))) |
1291 | { |
760ac839 |
1292 | PerlIO_clearerr(fp); |
a0d0e21e |
1293 | if (IoFLAGS(io) & IOf_ARGV) { |
3280af22 |
1294 | fp = nextargv(PL_last_in_gv); |
a0d0e21e |
1295 | if (fp) |
1296 | continue; |
3280af22 |
1297 | (void)do_close(PL_last_in_gv, FALSE); |
a0d0e21e |
1298 | IoFLAGS(io) |= IOf_START; |
1299 | } |
1300 | else if (type == OP_GLOB) { |
4eb79ab5 |
1301 | if (!do_close(PL_last_in_gv, FALSE) && ckWARN(WARN_CLOSED)) { |
cea2e8a9 |
1302 | Perl_warner(aTHX_ WARN_CLOSED, |
4eb79ab5 |
1303 | "glob failed (child exited with status %d%s)", |
1304 | STATUS_CURRENT >> 8, |
cf494569 |
1305 | (STATUS_CURRENT & 0x80) ? ", core dumped" : ""); |
4eb79ab5 |
1306 | } |
a0d0e21e |
1307 | } |
54310121 |
1308 | if (gimme == G_SCALAR) { |
a0d0e21e |
1309 | (void)SvOK_off(TARG); |
1310 | PUSHTARG; |
1311 | } |
1312 | RETURN; |
1313 | } |
bbce6d69 |
1314 | /* This should not be marked tainted if the fp is marked clean */ |
1315 | if (!(IoFLAGS(io) & IOf_UNTAINT)) { |
1316 | TAINT; |
1317 | SvTAINTED_on(sv); |
1318 | } |
a0d0e21e |
1319 | IoLINES(io)++; |
71be2cbc |
1320 | SvSETMAGIC(sv); |
a0d0e21e |
1321 | XPUSHs(sv); |
a0d0e21e |
1322 | if (type == OP_GLOB) { |
1323 | char *tmps; |
1324 | |
3280af22 |
1325 | if (SvCUR(sv) > 0 && SvCUR(PL_rs) > 0) { |
c07a80fd |
1326 | tmps = SvEND(sv) - 1; |
3280af22 |
1327 | if (*tmps == *SvPVX(PL_rs)) { |
c07a80fd |
1328 | *tmps = '\0'; |
1329 | SvCUR(sv)--; |
1330 | } |
1331 | } |
a0d0e21e |
1332 | for (tmps = SvPVX(sv); *tmps; tmps++) |
1333 | if (!isALPHA(*tmps) && !isDIGIT(*tmps) && |
1334 | strchr("$&*(){}[]'\";\\|?<>~`", *tmps)) |
1335 | break; |
43384a1a |
1336 | if (*tmps && PerlLIO_lstat(SvPVX(sv), &PL_statbuf) < 0) { |
a0d0e21e |
1337 | (void)POPs; /* Unmatched wildcard? Chuck it... */ |
1338 | continue; |
1339 | } |
1340 | } |
54310121 |
1341 | if (gimme == G_ARRAY) { |
a0d0e21e |
1342 | if (SvLEN(sv) - SvCUR(sv) > 20) { |
1343 | SvLEN_set(sv, SvCUR(sv)+1); |
1344 | Renew(SvPVX(sv), SvLEN(sv), char); |
1345 | } |
1346 | sv = sv_2mortal(NEWSV(58, 80)); |
1347 | continue; |
1348 | } |
54310121 |
1349 | else if (gimme == G_SCALAR && !tmplen && SvLEN(sv) - SvCUR(sv) > 80) { |
a0d0e21e |
1350 | /* try to reclaim a bit of scalar space (only on 1st alloc) */ |
1351 | if (SvCUR(sv) < 60) |
1352 | SvLEN_set(sv, 80); |
1353 | else |
1354 | SvLEN_set(sv, SvCUR(sv)+40); /* allow some slop */ |
1355 | Renew(SvPVX(sv), SvLEN(sv), char); |
1356 | } |
1357 | RETURN; |
1358 | } |
1359 | } |
1360 | |
1361 | PP(pp_enter) |
1362 | { |
4e35701f |
1363 | djSP; |
c09156bb |
1364 | register PERL_CONTEXT *cx; |
533c011a |
1365 | I32 gimme = OP_GIMME(PL_op, -1); |
a0d0e21e |
1366 | |
54310121 |
1367 | if (gimme == -1) { |
1368 | if (cxstack_ix >= 0) |
1369 | gimme = cxstack[cxstack_ix].blk_gimme; |
1370 | else |
1371 | gimme = G_SCALAR; |
1372 | } |
a0d0e21e |
1373 | |
1374 | ENTER; |
1375 | |
1376 | SAVETMPS; |
924508f0 |
1377 | PUSHBLOCK(cx, CXt_BLOCK, SP); |
a0d0e21e |
1378 | |
1379 | RETURN; |
1380 | } |
1381 | |
1382 | PP(pp_helem) |
1383 | { |
4e35701f |
1384 | djSP; |
760ac839 |
1385 | HE* he; |
ae77835f |
1386 | SV **svp; |
a0d0e21e |
1387 | SV *keysv = POPs; |
a0d0e21e |
1388 | HV *hv = (HV*)POPs; |
533c011a |
1389 | U32 lval = PL_op->op_flags & OPf_MOD; |
1390 | U32 defer = PL_op->op_private & OPpLVAL_DEFER; |
be6c24e0 |
1391 | SV *sv; |
a0d0e21e |
1392 | |
ae77835f |
1393 | if (SvTYPE(hv) == SVt_PVHV) { |
1394 | he = hv_fetch_ent(hv, keysv, lval && !defer, 0); |
97fcbf96 |
1395 | svp = he ? &HeVAL(he) : 0; |
ae77835f |
1396 | } |
1397 | else if (SvTYPE(hv) == SVt_PVAV) { |
0ebe0038 |
1398 | if (PL_op->op_private & OPpLVAL_INTRO) |
cea2e8a9 |
1399 | DIE(aTHX_ "Can't localize pseudo-hash element"); |
97fcbf96 |
1400 | svp = avhv_fetch_ent((AV*)hv, keysv, lval && !defer, 0); |
ae77835f |
1401 | } |
c750a3ec |
1402 | else { |
a0d0e21e |
1403 | RETPUSHUNDEF; |
c750a3ec |
1404 | } |
a0d0e21e |
1405 | if (lval) { |
3280af22 |
1406 | if (!svp || *svp == &PL_sv_undef) { |
68dc0745 |
1407 | SV* lv; |
1408 | SV* key2; |
2d8e6c8d |
1409 | if (!defer) { |
1410 | STRLEN n_a; |
cea2e8a9 |
1411 | DIE(aTHX_ PL_no_helem, SvPV(keysv, n_a)); |
2d8e6c8d |
1412 | } |
68dc0745 |
1413 | lv = sv_newmortal(); |
1414 | sv_upgrade(lv, SVt_PVLV); |
1415 | LvTYPE(lv) = 'y'; |
1416 | sv_magic(lv, key2 = newSVsv(keysv), 'y', Nullch, 0); |
1417 | SvREFCNT_dec(key2); /* sv_magic() increments refcount */ |
1418 | LvTARG(lv) = SvREFCNT_inc(hv); |
1419 | LvTARGLEN(lv) = 1; |
1420 | PUSHs(lv); |
1421 | RETURN; |
1422 | } |
533c011a |
1423 | if (PL_op->op_private & OPpLVAL_INTRO) { |
ae77835f |
1424 | if (HvNAME(hv) && isGV(*svp)) |
533c011a |
1425 | save_gp((GV*)*svp, !(PL_op->op_flags & OPf_SPECIAL)); |
5f05dabc |
1426 | else |
161b7d16 |
1427 | save_helem(hv, keysv, svp); |
5f05dabc |
1428 | } |
533c011a |
1429 | else if (PL_op->op_private & OPpDEREF) |
1430 | vivify_ref(*svp, PL_op->op_private & OPpDEREF); |
a0d0e21e |
1431 | } |
3280af22 |
1432 | sv = (svp ? *svp : &PL_sv_undef); |
be6c24e0 |
1433 | /* This makes C<local $tied{foo} = $tied{foo}> possible. |
1434 | * Pushing the magical RHS on to the stack is useless, since |
1435 | * that magic is soon destined to be misled by the local(), |
1436 | * and thus the later pp_sassign() will fail to mg_get() the |
1437 | * old value. This should also cure problems with delayed |
1438 | * mg_get()s. GSAR 98-07-03 */ |
1439 | if (!lval && SvGMAGICAL(sv)) |
1440 | sv = sv_mortalcopy(sv); |
1441 | PUSHs(sv); |
a0d0e21e |
1442 | RETURN; |
1443 | } |
1444 | |
1445 | PP(pp_leave) |
1446 | { |
4e35701f |
1447 | djSP; |
c09156bb |
1448 | register PERL_CONTEXT *cx; |
a0d0e21e |
1449 | register SV **mark; |
1450 | SV **newsp; |
1451 | PMOP *newpm; |
1452 | I32 gimme; |
1453 | |
533c011a |
1454 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e |
1455 | cx = &cxstack[cxstack_ix]; |
3280af22 |
1456 | cx->blk_oldpm = PL_curpm; /* fake block should preserve $1 et al */ |
a0d0e21e |
1457 | } |
1458 | |
1459 | POPBLOCK(cx,newpm); |
1460 | |
533c011a |
1461 | gimme = OP_GIMME(PL_op, -1); |
54310121 |
1462 | if (gimme == -1) { |
1463 | if (cxstack_ix >= 0) |
1464 | gimme = cxstack[cxstack_ix].blk_gimme; |
1465 | else |
1466 | gimme = G_SCALAR; |
1467 | } |
a0d0e21e |
1468 | |
a1f49e72 |
1469 | TAINT_NOT; |
54310121 |
1470 | if (gimme == G_VOID) |
1471 | SP = newsp; |
1472 | else if (gimme == G_SCALAR) { |
1473 | MARK = newsp + 1; |
1474 | if (MARK <= SP) |
1475 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) |
1476 | *MARK = TOPs; |
1477 | else |
1478 | *MARK = sv_mortalcopy(TOPs); |
a0d0e21e |
1479 | else { |
54310121 |
1480 | MEXTEND(mark,0); |
3280af22 |
1481 | *MARK = &PL_sv_undef; |
a0d0e21e |
1482 | } |
54310121 |
1483 | SP = MARK; |
a0d0e21e |
1484 | } |
54310121 |
1485 | else if (gimme == G_ARRAY) { |
a1f49e72 |
1486 | /* in case LEAVE wipes old return values */ |
1487 | for (mark = newsp + 1; mark <= SP; mark++) { |
1488 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) { |
a0d0e21e |
1489 | *mark = sv_mortalcopy(*mark); |
a1f49e72 |
1490 | TAINT_NOT; /* Each item is independent */ |
1491 | } |
1492 | } |
a0d0e21e |
1493 | } |
3280af22 |
1494 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e |
1495 | |
1496 | LEAVE; |
1497 | |
1498 | RETURN; |
1499 | } |
1500 | |
1501 | PP(pp_iter) |
1502 | { |
4e35701f |
1503 | djSP; |
c09156bb |
1504 | register PERL_CONTEXT *cx; |
5f05dabc |
1505 | SV* sv; |
4633a7c4 |
1506 | AV* av; |
a0d0e21e |
1507 | |
924508f0 |
1508 | EXTEND(SP, 1); |
a0d0e21e |
1509 | cx = &cxstack[cxstack_ix]; |
6b35e009 |
1510 | if (CxTYPE(cx) != CXt_LOOP) |
cea2e8a9 |
1511 | DIE(aTHX_ "panic: pp_iter"); |
a0d0e21e |
1512 | |
4633a7c4 |
1513 | av = cx->blk_loop.iterary; |
89ea2908 |
1514 | if (SvTYPE(av) != SVt_PVAV) { |
1515 | /* iterate ($min .. $max) */ |
1516 | if (cx->blk_loop.iterlval) { |
1517 | /* string increment */ |
1518 | register SV* cur = cx->blk_loop.iterlval; |
1519 | STRLEN maxlen; |
1520 | char *max = SvPV((SV*)av, maxlen); |
1521 | if (!SvNIOK(cur) && SvCUR(cur) <= maxlen) { |
eaa5c2d6 |
1522 | #ifndef USE_THREADS /* don't risk potential race */ |
39ca2bb7 |
1523 | if (SvREFCNT(*cx->blk_loop.itervar) == 1 |
1524 | && !SvMAGICAL(*cx->blk_loop.itervar)) |
1525 | { |
eaa5c2d6 |
1526 | /* safe to reuse old SV */ |
1527 | sv_setsv(*cx->blk_loop.itervar, cur); |
1528 | } |
1529 | else |
1530 | #endif |
1531 | { |
1532 | /* we need a fresh SV every time so that loop body sees a |
1533 | * completely new SV for closures/references to work as |
1534 | * they used to */ |
1535 | SvREFCNT_dec(*cx->blk_loop.itervar); |
1536 | *cx->blk_loop.itervar = newSVsv(cur); |
1537 | } |
89ea2908 |
1538 | if (strEQ(SvPVX(cur), max)) |
1539 | sv_setiv(cur, 0); /* terminate next time */ |
1540 | else |
1541 | sv_inc(cur); |
1542 | RETPUSHYES; |
1543 | } |
1544 | RETPUSHNO; |
1545 | } |
1546 | /* integer increment */ |
1547 | if (cx->blk_loop.iterix > cx->blk_loop.itermax) |
1548 | RETPUSHNO; |
7f61b687 |
1549 | |
eaa5c2d6 |
1550 | #ifndef USE_THREADS /* don't risk potential race */ |
39ca2bb7 |
1551 | if (SvREFCNT(*cx->blk_loop.itervar) == 1 |
1552 | && !SvMAGICAL(*cx->blk_loop.itervar)) |
1553 | { |
eaa5c2d6 |
1554 | /* safe to reuse old SV */ |
1555 | sv_setiv(*cx->blk_loop.itervar, cx->blk_loop.iterix++); |
1556 | } |
1557 | else |
1558 | #endif |
1559 | { |
1560 | /* we need a fresh SV every time so that loop body sees a |
1561 | * completely new SV for closures/references to work as they |
1562 | * used to */ |
1563 | SvREFCNT_dec(*cx->blk_loop.itervar); |
1564 | *cx->blk_loop.itervar = newSViv(cx->blk_loop.iterix++); |
1565 | } |
89ea2908 |
1566 | RETPUSHYES; |
1567 | } |
1568 | |
1569 | /* iterate array */ |
3280af22 |
1570 | if (cx->blk_loop.iterix >= (av == PL_curstack ? cx->blk_oldsp : AvFILL(av))) |
4633a7c4 |
1571 | RETPUSHNO; |
a0d0e21e |
1572 | |
7a4c00b4 |
1573 | SvREFCNT_dec(*cx->blk_loop.itervar); |
a0d0e21e |
1574 | |
93965878 |
1575 | if (sv = (SvMAGICAL(av)) |
1576 | ? *av_fetch(av, ++cx->blk_loop.iterix, FALSE) |
1577 | : AvARRAY(av)[++cx->blk_loop.iterix]) |
a0d0e21e |
1578 | SvTEMP_off(sv); |
a0d0e21e |
1579 | else |
3280af22 |
1580 | sv = &PL_sv_undef; |
1581 | if (av != PL_curstack && SvIMMORTAL(sv)) { |
5f05dabc |
1582 | SV *lv = cx->blk_loop.iterlval; |
71be2cbc |
1583 | if (lv && SvREFCNT(lv) > 1) { |
1584 | SvREFCNT_dec(lv); |
1585 | lv = Nullsv; |
1586 | } |
5f05dabc |
1587 | if (lv) |
1588 | SvREFCNT_dec(LvTARG(lv)); |
1589 | else { |
68dc0745 |
1590 | lv = cx->blk_loop.iterlval = NEWSV(26, 0); |
5f05dabc |
1591 | sv_upgrade(lv, SVt_PVLV); |
5f05dabc |
1592 | LvTYPE(lv) = 'y'; |
68dc0745 |
1593 | sv_magic(lv, Nullsv, 'y', Nullch, 0); |
5f05dabc |
1594 | } |
1595 | LvTARG(lv) = SvREFCNT_inc(av); |
1596 | LvTARGOFF(lv) = cx->blk_loop.iterix; |
8ac85365 |
1597 | LvTARGLEN(lv) = (UV) -1; |
5f05dabc |
1598 | sv = (SV*)lv; |
1599 | } |
a0d0e21e |
1600 | |
7a4c00b4 |
1601 | *cx->blk_loop.itervar = SvREFCNT_inc(sv); |
a0d0e21e |
1602 | RETPUSHYES; |
1603 | } |
1604 | |
1605 | PP(pp_subst) |
1606 | { |
4e35701f |
1607 | djSP; dTARG; |
a0d0e21e |
1608 | register PMOP *pm = cPMOP; |
1609 | PMOP *rpm = pm; |
1610 | register SV *dstr; |
1611 | register char *s; |
1612 | char *strend; |
1613 | register char *m; |
1614 | char *c; |
1615 | register char *d; |
1616 | STRLEN clen; |
1617 | I32 iters = 0; |
1618 | I32 maxiters; |
1619 | register I32 i; |
1620 | bool once; |
71be2cbc |
1621 | bool rxtainted; |
a0d0e21e |
1622 | char *orig; |
22e551b9 |
1623 | I32 r_flags; |
d9f97599 |
1624 | register REGEXP *rx = pm->op_pmregexp; |
a0d0e21e |
1625 | STRLEN len; |
1626 | int force_on_match = 0; |
3280af22 |
1627 | I32 oldsave = PL_savestack_ix; |
c277df42 |
1628 | I32 update_minmatch = 1; |
a0d0e21e |
1629 | |
5cd24f17 |
1630 | /* known replacement string? */ |
1631 | dstr = (pm->op_pmflags & PMf_CONST) ? POPs : Nullsv; |
533c011a |
1632 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e |
1633 | TARG = POPs; |
1634 | else { |
54b9620d |
1635 | TARG = DEFSV; |
a0d0e21e |
1636 | EXTEND(SP,1); |
8ec5e241 |
1637 | } |
68dc0745 |
1638 | if (SvREADONLY(TARG) |
1639 | || (SvTYPE(TARG) > SVt_PVLV |
1640 | && !(SvTYPE(TARG) == SVt_PVGV && SvFAKE(TARG)))) |
cea2e8a9 |
1641 | Perl_croak(aTHX_ PL_no_modify); |
8ec5e241 |
1642 | PUTBACK; |
1643 | |
a0d0e21e |
1644 | s = SvPV(TARG, len); |
68dc0745 |
1645 | if (!SvPOKp(TARG) || SvTYPE(TARG) == SVt_PVGV) |
a0d0e21e |
1646 | force_on_match = 1; |
b3eb6a9b |
1647 | rxtainted = ((pm->op_pmdynflags & PMdf_TAINTED) || |
3280af22 |
1648 | (PL_tainted && (pm->op_pmflags & PMf_RETAINT))); |
1649 | if (PL_tainted) |
b3eb6a9b |
1650 | rxtainted |= 2; |
9212bbba |
1651 | TAINT_NOT; |
a0d0e21e |
1652 | |
1653 | force_it: |
1654 | if (!pm || !s) |
cea2e8a9 |
1655 | DIE(aTHX_ "panic: do_subst"); |
a0d0e21e |
1656 | |
1657 | strend = s + len; |
2beec16e |
1658 | maxiters = 2*(strend - s) + 10; /* We can match twice at each |
1659 | position, once with zero-length, |
1660 | second time with non-zero. */ |
a0d0e21e |
1661 | |
3280af22 |
1662 | if (!rx->prelen && PL_curpm) { |
1663 | pm = PL_curpm; |
d9f97599 |
1664 | rx = pm->op_pmregexp; |
a0d0e21e |
1665 | } |
22e551b9 |
1666 | r_flags = (rx->nparens || SvTEMP(TARG) || PL_sawampersand) |
9d080a66 |
1667 | ? REXEC_COPY_STR : 0; |
f722798b |
1668 | if (SvSCREAM(TARG)) |
22e551b9 |
1669 | r_flags |= REXEC_SCREAM; |
a0d0e21e |
1670 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
3280af22 |
1671 | SAVEINT(PL_multiline); |
1672 | PL_multiline = pm->op_pmflags & PMf_MULTILINE; |
a0d0e21e |
1673 | } |
1674 | orig = m = s; |
f722798b |
1675 | if (rx->reganch & RE_USE_INTUIT) { |
1676 | s = CALLREG_INTUIT_START(aTHX_ rx, TARG, s, strend, r_flags, NULL); |
1677 | |
1678 | if (!s) |
1679 | goto nope; |
1680 | /* How to do it in subst? */ |
1681 | /* if ( (rx->reganch & ROPT_CHECK_ALL) |
1682 | && !PL_sawampersand |
1683 | && ((rx->reganch & ROPT_NOSCAN) |
1684 | || !((rx->reganch & RE_INTUIT_TAIL) |
1685 | && (r_flags & REXEC_SCREAM)))) |
1686 | goto yup; |
1687 | */ |
a0d0e21e |
1688 | } |
71be2cbc |
1689 | |
1690 | /* only replace once? */ |
a0d0e21e |
1691 | once = !(rpm->op_pmflags & PMf_GLOBAL); |
71be2cbc |
1692 | |
1693 | /* known replacement string? */ |
5cd24f17 |
1694 | c = dstr ? SvPV(dstr, clen) : Nullch; |
71be2cbc |
1695 | |
1696 | /* can do inplace substitution? */ |
22e551b9 |
1697 | if (c && clen <= rx->minlen && (once || !(r_flags & REXEC_COPY_STR)) |
d9f97599 |
1698 | && !(rx->reganch & ROPT_LOOKBEHIND_SEEN)) { |
f722798b |
1699 | if (!CALLREGEXEC(aTHX_ rx, s, strend, orig, 0, TARG, NULL, |
1700 | r_flags | REXEC_CHECKED)) |
1701 | { |
8ec5e241 |
1702 | SPAGAIN; |
3280af22 |
1703 | PUSHs(&PL_sv_no); |
71be2cbc |
1704 | LEAVE_SCOPE(oldsave); |
1705 | RETURN; |
1706 | } |
1707 | if (force_on_match) { |
1708 | force_on_match = 0; |
1709 | s = SvPV_force(TARG, len); |
1710 | goto force_it; |
1711 | } |
71be2cbc |
1712 | d = s; |
3280af22 |
1713 | PL_curpm = pm; |
71be2cbc |
1714 | SvSCREAM_off(TARG); /* disable possible screamer */ |
1715 | if (once) { |
48c036b1 |
1716 | rxtainted |= RX_MATCH_TAINTED(rx); |
cf93c79d |
1717 | m = orig + rx->startp[0]; |
1718 | d = orig + rx->endp[0]; |
71be2cbc |
1719 | s = orig; |
1720 | if (m - s > strend - d) { /* faster to shorten from end */ |
1721 | if (clen) { |
1722 | Copy(c, m, clen, char); |
1723 | m += clen; |
a0d0e21e |
1724 | } |
71be2cbc |
1725 | i = strend - d; |
1726 | if (i > 0) { |
1727 | Move(d, m, i, char); |
1728 | m += i; |
a0d0e21e |
1729 | } |
71be2cbc |
1730 | *m = '\0'; |
1731 | SvCUR_set(TARG, m - s); |
1732 | } |
1733 | /*SUPPRESS 560*/ |
1734 | else if (i = m - s) { /* faster from front */ |
1735 | d -= clen; |
1736 | m = d; |
1737 | sv_chop(TARG, d-i); |
1738 | s += i; |
1739 | while (i--) |
1740 | *--d = *--s; |
1741 | if (clen) |
1742 | Copy(c, m, clen, char); |
1743 | } |
1744 | else if (clen) { |
1745 | d -= clen; |
1746 | sv_chop(TARG, d); |
1747 | Copy(c, d, clen, char); |
1748 | } |
1749 | else { |
1750 | sv_chop(TARG, d); |
1751 | } |
48c036b1 |
1752 | TAINT_IF(rxtainted & 1); |
8ec5e241 |
1753 | SPAGAIN; |
3280af22 |
1754 | PUSHs(&PL_sv_yes); |
71be2cbc |
1755 | } |
1756 | else { |
71be2cbc |
1757 | do { |
1758 | if (iters++ > maxiters) |
cea2e8a9 |
1759 | DIE(aTHX_ "Substitution loop"); |
d9f97599 |
1760 | rxtainted |= RX_MATCH_TAINTED(rx); |
cf93c79d |
1761 | m = rx->startp[0] + orig; |
71be2cbc |
1762 | /*SUPPRESS 560*/ |
1763 | if (i = m - s) { |
1764 | if (s != d) |
1765 | Move(s, d, i, char); |
1766 | d += i; |
a0d0e21e |
1767 | } |
71be2cbc |
1768 | if (clen) { |
1769 | Copy(c, d, clen, char); |
1770 | d += clen; |
1771 | } |
cf93c79d |
1772 | s = rx->endp[0] + orig; |
cea2e8a9 |
1773 | } while (CALLREGEXEC(aTHX_ rx, s, strend, orig, s == m, |
f722798b |
1774 | TARG, NULL, |
1775 | /* don't match same null twice */ |
1776 | REXEC_NOT_FIRST|REXEC_IGNOREPOS)); |
71be2cbc |
1777 | if (s != d) { |
1778 | i = strend - s; |
1779 | SvCUR_set(TARG, d - SvPVX(TARG) + i); |
1780 | Move(s, d, i+1, char); /* include the NUL */ |
a0d0e21e |
1781 | } |
48c036b1 |
1782 | TAINT_IF(rxtainted & 1); |
8ec5e241 |
1783 | SPAGAIN; |
71be2cbc |
1784 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
a0d0e21e |
1785 | } |
71be2cbc |
1786 | (void)SvPOK_only(TARG); |
48c036b1 |
1787 | TAINT_IF(rxtainted); |
8ec5e241 |
1788 | if (SvSMAGICAL(TARG)) { |
1789 | PUTBACK; |
1790 | mg_set(TARG); |
1791 | SPAGAIN; |
1792 | } |
9212bbba |
1793 | SvTAINT(TARG); |
71be2cbc |
1794 | LEAVE_SCOPE(oldsave); |
1795 | RETURN; |
a0d0e21e |
1796 | } |
71be2cbc |
1797 | |
f722798b |
1798 | if (CALLREGEXEC(aTHX_ rx, s, strend, orig, 0, TARG, NULL, |
1799 | r_flags | REXEC_CHECKED)) |
1800 | { |
a0d0e21e |
1801 | if (force_on_match) { |
1802 | force_on_match = 0; |
1803 | s = SvPV_force(TARG, len); |
1804 | goto force_it; |
1805 | } |
48c036b1 |
1806 | rxtainted |= RX_MATCH_TAINTED(rx); |
8ec5e241 |
1807 | dstr = NEWSV(25, len); |
a0d0e21e |
1808 | sv_setpvn(dstr, m, s-m); |
3280af22 |
1809 | PL_curpm = pm; |
a0d0e21e |
1810 | if (!c) { |
c09156bb |
1811 | register PERL_CONTEXT *cx; |
8ec5e241 |
1812 | SPAGAIN; |
a0d0e21e |
1813 | PUSHSUBST(cx); |
1814 | RETURNOP(cPMOP->op_pmreplroot); |
1815 | } |
cf93c79d |
1816 | r_flags |= REXEC_IGNOREPOS | REXEC_NOT_FIRST; |
a0d0e21e |
1817 | do { |
1818 | if (iters++ > maxiters) |
cea2e8a9 |
1819 | DIE(aTHX_ "Substitution loop"); |
d9f97599 |
1820 | rxtainted |= RX_MATCH_TAINTED(rx); |
cf93c79d |
1821 | if (RX_MATCH_COPIED(rx) && rx->subbeg != orig) { |
a0d0e21e |
1822 | m = s; |
1823 | s = orig; |
cf93c79d |
1824 | orig = rx->subbeg; |
a0d0e21e |
1825 | s = orig + (m - s); |
1826 | strend = s + (strend - m); |
1827 | } |
cf93c79d |
1828 | m = rx->startp[0] + orig; |
a0d0e21e |
1829 | sv_catpvn(dstr, s, m-s); |
cf93c79d |
1830 | s = rx->endp[0] + orig; |
a0d0e21e |
1831 | if (clen) |
1832 | sv_catpvn(dstr, c, clen); |
1833 | if (once) |
1834 | break; |
cea2e8a9 |
1835 | } while (CALLREGEXEC(aTHX_ rx, s, strend, orig, s == m, TARG, NULL, r_flags)); |
a0d0e21e |
1836 | sv_catpvn(dstr, s, strend - s); |
748a9306 |
1837 | |
4633a7c4 |
1838 | (void)SvOOK_off(TARG); |
cb0b1708 |
1839 | Safefree(SvPVX(TARG)); |
748a9306 |
1840 | SvPVX(TARG) = SvPVX(dstr); |
1841 | SvCUR_set(TARG, SvCUR(dstr)); |
1842 | SvLEN_set(TARG, SvLEN(dstr)); |
1843 | SvPVX(dstr) = 0; |
1844 | sv_free(dstr); |
1845 | |
48c036b1 |
1846 | TAINT_IF(rxtainted & 1); |
f878fbec |
1847 | SPAGAIN; |
48c036b1 |
1848 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
1849 | |
a0d0e21e |
1850 | (void)SvPOK_only(TARG); |
48c036b1 |
1851 | TAINT_IF(rxtainted); |
a0d0e21e |
1852 | SvSETMAGIC(TARG); |
9212bbba |
1853 | SvTAINT(TARG); |
4633a7c4 |
1854 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1855 | RETURN; |
1856 | } |
5cd24f17 |
1857 | goto ret_no; |
a0d0e21e |
1858 | |
1859 | nope: |
8ec5e241 |
1860 | ret_no: |
1861 | SPAGAIN; |
3280af22 |
1862 | PUSHs(&PL_sv_no); |
4633a7c4 |
1863 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1864 | RETURN; |
1865 | } |
1866 | |
1867 | PP(pp_grepwhile) |
1868 | { |
4e35701f |
1869 | djSP; |
a0d0e21e |
1870 | |
1871 | if (SvTRUEx(POPs)) |
3280af22 |
1872 | PL_stack_base[PL_markstack_ptr[-1]++] = PL_stack_base[*PL_markstack_ptr]; |
1873 | ++*PL_markstack_ptr; |
a0d0e21e |
1874 | LEAVE; /* exit inner scope */ |
1875 | |
1876 | /* All done yet? */ |
3280af22 |
1877 | if (PL_stack_base + *PL_markstack_ptr > SP) { |
a0d0e21e |
1878 | I32 items; |
54310121 |
1879 | I32 gimme = GIMME_V; |
a0d0e21e |
1880 | |
1881 | LEAVE; /* exit outer scope */ |
1882 | (void)POPMARK; /* pop src */ |
3280af22 |
1883 | items = --*PL_markstack_ptr - PL_markstack_ptr[-1]; |
a0d0e21e |
1884 | (void)POPMARK; /* pop dst */ |
3280af22 |
1885 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
54310121 |
1886 | if (gimme == G_SCALAR) { |
a0d0e21e |
1887 | dTARGET; |
1888 | XPUSHi(items); |
a0d0e21e |
1889 | } |
54310121 |
1890 | else if (gimme == G_ARRAY) |
1891 | SP += items; |
a0d0e21e |
1892 | RETURN; |
1893 | } |
1894 | else { |
1895 | SV *src; |
1896 | |
1897 | ENTER; /* enter inner scope */ |
3280af22 |
1898 | SAVESPTR(PL_curpm); |
a0d0e21e |
1899 | |
3280af22 |
1900 | src = PL_stack_base[*PL_markstack_ptr]; |
a0d0e21e |
1901 | SvTEMP_off(src); |
54b9620d |
1902 | DEFSV = src; |
a0d0e21e |
1903 | |
1904 | RETURNOP(cLOGOP->op_other); |
1905 | } |
1906 | } |
1907 | |
1908 | PP(pp_leavesub) |
1909 | { |
4e35701f |
1910 | djSP; |
a0d0e21e |
1911 | SV **mark; |
1912 | SV **newsp; |
1913 | PMOP *newpm; |
1914 | I32 gimme; |
c09156bb |
1915 | register PERL_CONTEXT *cx; |
f86702cc |
1916 | struct block_sub cxsub; |
a0d0e21e |
1917 | |
1918 | POPBLOCK(cx,newpm); |
f86702cc |
1919 | POPSUB1(cx); /* Delay POPSUB2 until stack values are safe */ |
1920 | |
a1f49e72 |
1921 | TAINT_NOT; |
a0d0e21e |
1922 | if (gimme == G_SCALAR) { |
1923 | MARK = newsp + 1; |
a29cdaf0 |
1924 | if (MARK <= SP) { |
1925 | if (cxsub.cv && CvDEPTH(cxsub.cv) > 1) { |
1926 | if (SvTEMP(TOPs)) { |
1927 | *MARK = SvREFCNT_inc(TOPs); |
1928 | FREETMPS; |
1929 | sv_2mortal(*MARK); |
1930 | } else { |
1931 | FREETMPS; |
1932 | *MARK = sv_mortalcopy(TOPs); |
1933 | } |
1934 | } else |
1935 | *MARK = SvTEMP(TOPs) ? TOPs : sv_mortalcopy(TOPs); |
1936 | } else { |
f86702cc |
1937 | MEXTEND(MARK, 0); |
3280af22 |
1938 | *MARK = &PL_sv_undef; |
a0d0e21e |
1939 | } |
1940 | SP = MARK; |
1941 | } |
54310121 |
1942 | else if (gimme == G_ARRAY) { |
f86702cc |
1943 | for (MARK = newsp + 1; MARK <= SP; MARK++) { |
a1f49e72 |
1944 | if (!SvTEMP(*MARK)) { |
f86702cc |
1945 | *MARK = sv_mortalcopy(*MARK); |
a1f49e72 |
1946 | TAINT_NOT; /* Each item is independent */ |
1947 | } |
f86702cc |
1948 | } |
a0d0e21e |
1949 | } |
f86702cc |
1950 | PUTBACK; |
1951 | |
1952 | POPSUB2(); /* Stack values are safe: release CV and @_ ... */ |
3280af22 |
1953 | PL_curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e |
1954 | |
1955 | LEAVE; |
a0d0e21e |
1956 | return pop_return(); |
1957 | } |
1958 | |
76e3520e |
1959 | STATIC CV * |
cea2e8a9 |
1960 | S_get_db_sub(pTHX_ SV **svp, CV *cv) |
3de9ffa1 |
1961 | { |
1962 | dTHR; |
3280af22 |
1963 | SV *dbsv = GvSV(PL_DBsub); |
491527d0 |
1964 | |
1965 | if (!PERLDB_SUB_NN) { |
1966 | GV *gv = CvGV(cv); |
1967 | |
1968 | save_item(dbsv); |
1969 | if ( (CvFLAGS(cv) & (CVf_ANON | CVf_CLONED)) |
1970 | || strEQ(GvNAME(gv), "END") |
1971 | || ((GvCV(gv) != cv) && /* Could be imported, and old sub redefined. */ |
1972 | !( (SvTYPE(*svp) == SVt_PVGV) && (GvCV((GV*)*svp) == cv) |
1973 | && (gv = (GV*)*svp) ))) { |
1974 | /* Use GV from the stack as a fallback. */ |
1975 | /* GV is potentially non-unique, or contain different CV. */ |
1976 | sv_setsv(dbsv, newRV((SV*)cv)); |
1977 | } |
1978 | else { |
1979 | gv_efullname3(dbsv, gv, Nullch); |
1980 | } |
3de9ffa1 |
1981 | } |
1982 | else { |
491527d0 |
1983 | SvUPGRADE(dbsv, SVt_PVIV); |
1984 | SvIOK_on(dbsv); |
1985 | SAVEIV(SvIVX(dbsv)); |
1986 | SvIVX(dbsv) = (IV)cv; /* Do it the quickest way */ |
3de9ffa1 |
1987 | } |
491527d0 |
1988 | |
3de9ffa1 |
1989 | if (CvXSUB(cv)) |
3280af22 |
1990 | PL_curcopdb = PL_curcop; |
1991 | cv = GvCV(PL_DBsub); |
3de9ffa1 |
1992 | return cv; |
1993 | } |
1994 | |
a0d0e21e |
1995 | PP(pp_entersub) |
1996 | { |
4e35701f |
1997 | djSP; dPOPss; |
a0d0e21e |
1998 | GV *gv; |
1999 | HV *stash; |
2000 | register CV *cv; |
c09156bb |
2001 | register PERL_CONTEXT *cx; |
5d94fbed |
2002 | I32 gimme; |
533c011a |
2003 | bool hasargs = (PL_op->op_flags & OPf_STACKED) != 0; |
a0d0e21e |
2004 | |
2005 | if (!sv) |
cea2e8a9 |
2006 | DIE(aTHX_ "Not a CODE reference"); |
a0d0e21e |
2007 | switch (SvTYPE(sv)) { |
2008 | default: |
2009 | if (!SvROK(sv)) { |
748a9306 |
2010 | char *sym; |
2d8e6c8d |
2011 | STRLEN n_a; |
748a9306 |
2012 | |
3280af22 |
2013 | if (sv == &PL_sv_yes) { /* unfound import, ignore */ |
fb73857a |
2014 | if (hasargs) |
3280af22 |
2015 | SP = PL_stack_base + POPMARK; |
a0d0e21e |
2016 | RETURN; |
fb73857a |
2017 | } |
15ff848f |
2018 | if (SvGMAGICAL(sv)) { |
2019 | mg_get(sv); |
2020 | sym = SvPOKp(sv) ? SvPVX(sv) : Nullch; |
2021 | } |
2022 | else |
2d8e6c8d |
2023 | sym = SvPV(sv, n_a); |
15ff848f |
2024 | if (!sym) |
cea2e8a9 |
2025 | DIE(aTHX_ PL_no_usym, "a subroutine"); |
533c011a |
2026 | if (PL_op->op_private & HINT_STRICT_REFS) |
cea2e8a9 |
2027 | DIE(aTHX_ PL_no_symref, sym, "a subroutine"); |
864dbfa3 |
2028 | cv = get_cv(sym, TRUE); |
a0d0e21e |
2029 | break; |
2030 | } |
f5284f61 |
2031 | { |
2032 | SV **sp = &sv; /* Used in tryAMAGICunDEREF macro. */ |
2033 | tryAMAGICunDEREF(to_cv); |
2034 | } |
a0d0e21e |
2035 | cv = (CV*)SvRV(sv); |
2036 | if (SvTYPE(cv) == SVt_PVCV) |
2037 | break; |
2038 | /* FALL THROUGH */ |
2039 | case SVt_PVHV: |
2040 | case SVt_PVAV: |
cea2e8a9 |
2041 | DIE(aTHX_ "Not a CODE reference"); |
a0d0e21e |
2042 | case SVt_PVCV: |
2043 | cv = (CV*)sv; |
2044 | break; |
2045 | case SVt_PVGV: |
8ebc5c01 |
2046 | if (!(cv = GvCVu((GV*)sv))) |
f6ec51f7 |
2047 | cv = sv_2cv(sv, &stash, &gv, FALSE); |
2048 | if (!cv) { |
2049 | ENTER; |
2050 | SAVETMPS; |
2051 | goto try_autoload; |
2052 | } |
2053 | break; |
a0d0e21e |
2054 | } |
2055 | |
2056 | ENTER; |
2057 | SAVETMPS; |
2058 | |
2059 | retry: |
a0d0e21e |
2060 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
44a8e56a |
2061 | GV* autogv; |
22239a37 |
2062 | SV* sub_name; |
44a8e56a |
2063 | |
2064 | /* anonymous or undef'd function leaves us no recourse */ |
2065 | if (CvANON(cv) || !(gv = CvGV(cv))) |
cea2e8a9 |
2066 | DIE(aTHX_ "Undefined subroutine called"); |
67caa1fe |
2067 | |
44a8e56a |
2068 | /* autoloaded stub? */ |
2069 | if (cv != GvCV(gv)) { |
2070 | cv = GvCV(gv); |
a0d0e21e |
2071 | } |
44a8e56a |
2072 | /* should call AUTOLOAD now? */ |
67caa1fe |
2073 | else { |
f6ec51f7 |
2074 | try_autoload: |
2075 | if ((autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), |
2076 | FALSE))) |
2077 | { |
2078 | cv = GvCV(autogv); |
2079 | } |
2080 | /* sorry */ |
2081 | else { |
2082 | sub_name = sv_newmortal(); |
2083 | gv_efullname3(sub_name, gv, Nullch); |
cea2e8a9 |
2084 | DIE(aTHX_ "Undefined subroutine &%s called", SvPVX(sub_name)); |
f6ec51f7 |
2085 | } |
67caa1fe |
2086 | } |
2087 | if (!cv) |
cea2e8a9 |
2088 | DIE(aTHX_ "Not a CODE reference"); |
67caa1fe |
2089 | goto retry; |
a0d0e21e |
2090 | } |
2091 | |
54310121 |
2092 | gimme = GIMME_V; |
67caa1fe |
2093 | if ((PL_op->op_private & OPpENTERSUB_DB) && GvCV(PL_DBsub) && !CvNODEBUG(cv)) { |
4f01c5a5 |
2094 | cv = get_db_sub(&sv, cv); |
67caa1fe |
2095 | if (!cv) |
cea2e8a9 |
2096 | DIE(aTHX_ "No DBsub routine"); |
67caa1fe |
2097 | } |
a0d0e21e |
2098 | |
11343788 |
2099 | #ifdef USE_THREADS |
3de9ffa1 |
2100 | /* |
2101 | * First we need to check if the sub or method requires locking. |
458fb581 |
2102 | * If so, we gain a lock on the CV, the first argument or the |
2103 | * stash (for static methods), as appropriate. This has to be |
2104 | * inline because for FAKE_THREADS, COND_WAIT inlines code to |
2105 | * reschedule by returning a new op. |
3de9ffa1 |
2106 | */ |
11343788 |
2107 | MUTEX_LOCK(CvMUTEXP(cv)); |
77a005ab |
2108 | if (CvFLAGS(cv) & CVf_LOCKED) { |
2109 | MAGIC *mg; |
2110 | if (CvFLAGS(cv) & CVf_METHOD) { |
533c011a |
2111 | if (SP > PL_stack_base + TOPMARK) |
2112 | sv = *(PL_stack_base + TOPMARK + 1); |
77a005ab |
2113 | else { |
13e08037 |
2114 | AV *av = (AV*)PL_curpad[0]; |
2115 | if (hasargs || !av || AvFILLp(av) < 0 |
2116 | || !(sv = AvARRAY(av)[0])) |
2117 | { |
2118 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
cea2e8a9 |
2119 | Perl_croak(aTHX_ "no argument for locked method call"); |
13e08037 |
2120 | } |
77a005ab |
2121 | } |
2122 | if (SvROK(sv)) |
2123 | sv = SvRV(sv); |
458fb581 |
2124 | else { |
2125 | STRLEN len; |
2126 | char *stashname = SvPV(sv, len); |
2127 | sv = (SV*)gv_stashpvn(stashname, len, TRUE); |
2128 | } |
77a005ab |
2129 | } |
2130 | else { |
2131 | sv = (SV*)cv; |
2132 | } |
2133 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
2134 | mg = condpair_magic(sv); |
2135 | MUTEX_LOCK(MgMUTEXP(mg)); |
2136 | if (MgOWNER(mg) == thr) |
2137 | MUTEX_UNLOCK(MgMUTEXP(mg)); |
2138 | else { |
2139 | while (MgOWNER(mg)) |
2140 | COND_WAIT(MgOWNERCONDP(mg), MgMUTEXP(mg)); |
2141 | MgOWNER(mg) = thr; |
8b73bbec |
2142 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), "%p: pp_entersub lock %p\n", |
1fd28e87 |
2143 | thr, sv);) |
77a005ab |
2144 | MUTEX_UNLOCK(MgMUTEXP(mg)); |
cea2e8a9 |
2145 | save_destructor(Perl_unlock_condpair, sv); |
11343788 |
2146 | } |
77a005ab |
2147 | MUTEX_LOCK(CvMUTEXP(cv)); |
11343788 |
2148 | } |
3de9ffa1 |
2149 | /* |
2150 | * Now we have permission to enter the sub, we must distinguish |
2151 | * four cases. (0) It's an XSUB (in which case we don't care |
2152 | * about ownership); (1) it's ours already (and we're recursing); |
2153 | * (2) it's free (but we may already be using a cached clone); |
2154 | * (3) another thread owns it. Case (1) is easy: we just use it. |
2155 | * Case (2) means we look for a clone--if we have one, use it |
2156 | * otherwise grab ownership of cv. Case (3) means we look for a |
2157 | * clone (for non-XSUBs) and have to create one if we don't |
2158 | * already have one. |
2159 | * Why look for a clone in case (2) when we could just grab |
2160 | * ownership of cv straight away? Well, we could be recursing, |
2161 | * i.e. we originally tried to enter cv while another thread |
2162 | * owned it (hence we used a clone) but it has been freed up |
2163 | * and we're now recursing into it. It may or may not be "better" |
2164 | * to use the clone but at least CvDEPTH can be trusted. |
2165 | */ |
2166 | if (CvOWNER(cv) == thr || CvXSUB(cv)) |
2167 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
11343788 |
2168 | else { |
3de9ffa1 |
2169 | /* Case (2) or (3) */ |
2170 | SV **svp; |
2171 | |
11343788 |
2172 | /* |
3de9ffa1 |
2173 | * XXX Might it be better to release CvMUTEXP(cv) while we |
2174 | * do the hv_fetch? We might find someone has pinched it |
2175 | * when we look again, in which case we would be in case |
2176 | * (3) instead of (2) so we'd have to clone. Would the fact |
2177 | * that we released the mutex more quickly make up for this? |
2178 | */ |
b099ddc0 |
2179 | if ((svp = hv_fetch(thr->cvcache, (char *)cv, sizeof(cv), FALSE))) |
6ee623d5 |
2180 | { |
3de9ffa1 |
2181 | /* We already have a clone to use */ |
11343788 |
2182 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
3de9ffa1 |
2183 | cv = *(CV**)svp; |
8b73bbec |
2184 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
1fd28e87 |
2185 | "entersub: %p already has clone %p:%s\n", |
2186 | thr, cv, SvPEEK((SV*)cv))); |
3de9ffa1 |
2187 | CvOWNER(cv) = thr; |
2188 | SvREFCNT_inc(cv); |
2189 | if (CvDEPTH(cv) == 0) |
cea2e8a9 |
2190 | SAVEDESTRUCTOR(S_unset_cvowner, (void*) cv); |
3de9ffa1 |
2191 | } |
11343788 |
2192 | else { |
3de9ffa1 |
2193 | /* (2) => grab ownership of cv. (3) => make clone */ |
2194 | if (!CvOWNER(cv)) { |
2195 | CvOWNER(cv) = thr; |
2196 | SvREFCNT_inc(cv); |
11343788 |
2197 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
8b73bbec |
2198 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
1fd28e87 |
2199 | "entersub: %p grabbing %p:%s in stash %s\n", |
2200 | thr, cv, SvPEEK((SV*)cv), CvSTASH(cv) ? |
3de9ffa1 |
2201 | HvNAME(CvSTASH(cv)) : "(none)")); |
2202 | } else { |
2203 | /* Make a new clone. */ |
2204 | CV *clonecv; |
2205 | SvREFCNT_inc(cv); /* don't let it vanish from under us */ |
2206 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
8b73bbec |
2207 | DEBUG_S((PerlIO_printf(PerlIO_stderr(), |
1fd28e87 |
2208 | "entersub: %p cloning %p:%s\n", |
2209 | thr, cv, SvPEEK((SV*)cv)))); |
3de9ffa1 |
2210 | /* |
2211 | * We're creating a new clone so there's no race |
2212 | * between the original MUTEX_UNLOCK and the |
2213 | * SvREFCNT_inc since no one will be trying to undef |
2214 | * it out from underneath us. At least, I don't think |
2215 | * there's a race... |
2216 | */ |
2217 | clonecv = cv_clone(cv); |
2218 | SvREFCNT_dec(cv); /* finished with this */ |
199100c8 |
2219 | hv_store(thr->cvcache, (char*)cv, sizeof(cv), (SV*)clonecv,0); |
3de9ffa1 |
2220 | CvOWNER(clonecv) = thr; |
2221 | cv = clonecv; |
11343788 |
2222 | SvREFCNT_inc(cv); |
11343788 |
2223 | } |
8b73bbec |
2224 | DEBUG_S(if (CvDEPTH(cv) != 0) |
3de9ffa1 |
2225 | PerlIO_printf(PerlIO_stderr(), "depth %ld != 0\n", |
2226 | CvDEPTH(cv));); |
cea2e8a9 |
2227 | SAVEDESTRUCTOR(S_unset_cvowner, (void*) cv); |
11343788 |
2228 | } |
3de9ffa1 |
2229 | } |
11343788 |
2230 | #endif /* USE_THREADS */ |
2231 | |
a0d0e21e |
2232 | if (CvXSUB(cv)) { |
67caa1fe |
2233 | #ifdef PERL_XSUB_OLDSTYLE |
a0d0e21e |
2234 | if (CvOLDSTYLE(cv)) { |
20ce7b12 |
2235 | I32 (*fp3)(int,int,int); |
a0d0e21e |
2236 | dMARK; |
2237 | register I32 items = SP - MARK; |
67955e0c |
2238 | /* We dont worry to copy from @_. */ |
924508f0 |
2239 | while (SP > mark) { |
2240 | SP[1] = SP[0]; |
2241 | SP--; |
a0d0e21e |
2242 | } |
3280af22 |
2243 | PL_stack_sp = mark + 1; |
20ce7b12 |
2244 | fp3 = (I32(*)(int,int,int)))CvXSUB(cv; |
ecfc5424 |
2245 | items = (*fp3)(CvXSUBANY(cv).any_i32, |
3280af22 |
2246 | MARK - PL_stack_base + 1, |
ecfc5424 |
2247 | items); |
3280af22 |
2248 | PL_stack_sp = PL_stack_base + items; |
a0d0e21e |
2249 | } |
67caa1fe |
2250 | else |
2251 | #endif /* PERL_XSUB_OLDSTYLE */ |
2252 | { |
748a9306 |
2253 | I32 markix = TOPMARK; |
2254 | |
a0d0e21e |
2255 | PUTBACK; |
67955e0c |
2256 | |
2257 | if (!hasargs) { |
2258 | /* Need to copy @_ to stack. Alternative may be to |
2259 | * switch stack to @_, and copy return values |
2260 | * back. This would allow popping @_ in XSUB, e.g.. XXXX */ |
6d4ff0d2 |
2261 | AV* av; |
2262 | I32 items; |
2263 | #ifdef USE_THREADS |
533c011a |
2264 | av = (AV*)PL_curpad[0]; |
6d4ff0d2 |
2265 | #else |
3280af22 |
2266 | av = GvAV(PL_defgv); |
6d4ff0d2 |
2267 | #endif /* USE_THREADS */ |
93965878 |
2268 | items = AvFILLp(av) + 1; /* @_ is not tieable */ |
67955e0c |
2269 | |
2270 | if (items) { |
2271 | /* Mark is at the end of the stack. */ |
924508f0 |
2272 | EXTEND(SP, items); |
2273 | Copy(AvARRAY(av), SP + 1, items, SV*); |
2274 | SP += items; |
67955e0c |
2275 | PUTBACK ; |
2276 | } |
2277 | } |
67caa1fe |
2278 | /* We assume first XSUB in &DB::sub is the called one. */ |
2279 | if (PL_curcopdb) { |
3280af22 |
2280 | SAVESPTR(PL_curcop); |
2281 | PL_curcop = PL_curcopdb; |
2282 | PL_curcopdb = NULL; |
67955e0c |
2283 | } |
2284 | /* Do we need to open block here? XXXX */ |
0cb96387 |
2285 | (void)(*CvXSUB(cv))(aTHXo_ cv); |
748a9306 |
2286 | |
2287 | /* Enforce some sanity in scalar context. */ |
3280af22 |
2288 | if (gimme == G_SCALAR && ++markix != PL_stack_sp - PL_stack_base ) { |
2289 | if (markix > PL_stack_sp - PL_stack_base) |
2290 | *(PL_stack_base + markix) = &PL_sv_undef; |
748a9306 |
2291 | else |
3280af22 |
2292 | *(PL_stack_base + markix) = *PL_stack_sp; |
2293 | PL_stack_sp = PL_stack_base + markix; |
748a9306 |
2294 | } |
a0d0e21e |
2295 | } |
2296 | LEAVE; |
2297 | return NORMAL; |
2298 | } |
2299 | else { |
2300 | dMARK; |
2301 | register I32 items = SP - MARK; |
a0d0e21e |
2302 | AV* padlist = CvPADLIST(cv); |
2303 | SV** svp = AvARRAY(padlist); |
533c011a |
2304 | push_return(PL_op->op_next); |
a0d0e21e |
2305 | PUSHBLOCK(cx, CXt_SUB, MARK); |
2306 | PUSHSUB(cx); |
2307 | CvDEPTH(cv)++; |
6b35e009 |
2308 | /* XXX This would be a natural place to set C<PL_compcv = cv> so |
2309 | * that eval'' ops within this sub know the correct lexical space. |
2310 | * Owing the speed considerations, we choose to search for the cv |
2311 | * in doeval() instead. |
2312 | */ |
a0d0e21e |
2313 | if (CvDEPTH(cv) < 2) |
2314 | (void)SvREFCNT_inc(cv); |
2315 | else { /* save temporaries on recursion? */ |
93965878 |
2316 | if (CvDEPTH(cv) > AvFILLp(padlist)) { |
a0d0e21e |
2317 | AV *av; |
2318 | AV *newpad = newAV(); |
4aa0a1f7 |
2319 | SV **oldpad = AvARRAY(svp[CvDEPTH(cv)-1]); |
93965878 |
2320 | I32 ix = AvFILLp((AV*)svp[1]); |
a0d0e21e |
2321 | svp = AvARRAY(svp[0]); |
748a9306 |
2322 | for ( ;ix > 0; ix--) { |
3280af22 |
2323 | if (svp[ix] != &PL_sv_undef) { |
748a9306 |
2324 | char *name = SvPVX(svp[ix]); |
5f05dabc |
2325 | if ((SvFLAGS(svp[ix]) & SVf_FAKE) /* outer lexical? */ |
2326 | || *name == '&') /* anonymous code? */ |
2327 | { |
2328 | av_store(newpad, ix, SvREFCNT_inc(oldpad[ix])); |
748a9306 |
2329 | } |
2330 | else { /* our own lexical */ |
2331 | if (*name == '@') |
2332 | av_store(newpad, ix, sv = (SV*)newAV()); |
2333 | else if (*name == '%') |
2334 | av_store(newpad, ix, sv = (SV*)newHV()); |
2335 | else |
2336 | av_store(newpad, ix, sv = NEWSV(0,0)); |
2337 | SvPADMY_on(sv); |
2338 | } |
a0d0e21e |
2339 | } |
2340 | else { |
748a9306 |
2341 | av_store(newpad, ix, sv = NEWSV(0,0)); |
a0d0e21e |
2342 | SvPADTMP_on(sv); |
2343 | } |
2344 | } |
2345 | av = newAV(); /* will be @_ */ |
2346 | av_extend(av, 0); |
2347 | av_store(newpad, 0, (SV*)av); |
2348 | AvFLAGS(av) = AVf_REIFY; |
2349 | av_store(padlist, CvDEPTH(cv), (SV*)newpad); |
93965878 |
2350 | AvFILLp(padlist) = CvDEPTH(cv); |
a0d0e21e |
2351 | svp = AvARRAY(padlist); |
2352 | } |
2353 | } |
6d4ff0d2 |
2354 | #ifdef USE_THREADS |
2355 | if (!hasargs) { |
533c011a |
2356 | AV* av = (AV*)PL_curpad[0]; |
6d4ff0d2 |
2357 | |
93965878 |
2358 | items = AvFILLp(av) + 1; |
6d4ff0d2 |
2359 | if (items) { |
2360 | /* Mark is at the end of the stack. */ |
924508f0 |
2361 | EXTEND(SP, items); |
2362 | Copy(AvARRAY(av), SP + 1, items, SV*); |
2363 | SP += items; |
6d4ff0d2 |
2364 | PUTBACK ; |
2365 | } |
2366 | } |
2367 | #endif /* USE_THREADS */ |
3280af22 |
2368 | SAVESPTR(PL_curpad); |
2369 | PL_curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]); |
6d4ff0d2 |
2370 | #ifndef USE_THREADS |
2371 | if (hasargs) |
2372 | #endif /* USE_THREADS */ |
2373 | { |
2374 | AV* av; |
a0d0e21e |
2375 | SV** ary; |
2376 | |
77a005ab |
2377 | #if 0 |
8b73bbec |
2378 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
0f15f207 |
2379 | "%p entersub preparing @_\n", thr)); |
77a005ab |
2380 | #endif |
3280af22 |
2381 | av = (AV*)PL_curpad[0]; |
a0d0e21e |
2382 | if (AvREAL(av)) { |
2383 | av_clear(av); |
2384 | AvREAL_off(av); |
2385 | } |
6d4ff0d2 |
2386 | #ifndef USE_THREADS |
3280af22 |
2387 | cx->blk_sub.savearray = GvAV(PL_defgv); |
2388 | GvAV(PL_defgv) = (AV*)SvREFCNT_inc(av); |
6d4ff0d2 |
2389 | #endif /* USE_THREADS */ |
2390 | cx->blk_sub.argarray = av; |
a0d0e21e |
2391 | ++MARK; |
2392 | |
2393 | if (items > AvMAX(av) + 1) { |
2394 | ary = AvALLOC(av); |
2395 | if (AvARRAY(av) != ary) { |
2396 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); |
2397 | SvPVX(av) = (char*)ary; |
2398 | } |
2399 | if (items > AvMAX(av) + 1) { |
2400 | AvMAX(av) = items - 1; |
2401 | Renew(ary,items,SV*); |
2402 | AvALLOC(av) = ary; |
2403 | SvPVX(av) = (char*)ary; |
2404 | } |
2405 | } |
2406 | Copy(MARK,AvARRAY(av),items,SV*); |
93965878 |
2407 | AvFILLp(av) = items - 1; |
a0d0e21e |
2408 | |
2409 | while (items--) { |
2410 | if (*MARK) |
2411 | SvTEMP_off(*MARK); |
2412 | MARK++; |
2413 | } |
2414 | } |
4a925ff6 |
2415 | /* warning must come *after* we fully set up the context |
2416 | * stuff so that __WARN__ handlers can safely dounwind() |
2417 | * if they want to |
2418 | */ |
2419 | if (CvDEPTH(cv) == 100 && ckWARN(WARN_RECURSION) |
2420 | && !(PERLDB_SUB && cv == GvCV(PL_DBsub))) |
2421 | sub_crush_depth(cv); |
77a005ab |
2422 | #if 0 |
8b73bbec |
2423 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
0f15f207 |
2424 | "%p entersub returning %p\n", thr, CvSTART(cv))); |
77a005ab |
2425 | #endif |
a0d0e21e |
2426 | RETURNOP(CvSTART(cv)); |
2427 | } |
2428 | } |
2429 | |
44a8e56a |
2430 | void |
864dbfa3 |
2431 | Perl_sub_crush_depth(pTHX_ CV *cv) |
44a8e56a |
2432 | { |
2433 | if (CvANON(cv)) |
cea2e8a9 |
2434 | Perl_warner(aTHX_ WARN_RECURSION, "Deep recursion on anonymous subroutine"); |
44a8e56a |
2435 | else { |
2436 | SV* tmpstr = sv_newmortal(); |
2437 | gv_efullname3(tmpstr, CvGV(cv), Nullch); |
cea2e8a9 |
2438 | Perl_warner(aTHX_ WARN_RECURSION, "Deep recursion on subroutine \"%s\"", |
599cee73 |
2439 | SvPVX(tmpstr)); |
44a8e56a |
2440 | } |
2441 | } |
2442 | |
a0d0e21e |
2443 | PP(pp_aelem) |
2444 | { |
4e35701f |
2445 | djSP; |
a0d0e21e |
2446 | SV** svp; |
748a9306 |
2447 | I32 elem = POPi; |
68dc0745 |
2448 | AV* av = (AV*)POPs; |
533c011a |
2449 | U32 lval = PL_op->op_flags & OPf_MOD; |
2450 | U32 defer = (PL_op->op_private & OPpLVAL_DEFER) && (elem > AvFILL(av)); |
be6c24e0 |
2451 | SV *sv; |
a0d0e21e |
2452 | |
748a9306 |
2453 | if (elem > 0) |
3280af22 |
2454 | elem -= PL_curcop->cop_arybase; |
a0d0e21e |
2455 | if (SvTYPE(av) != SVt_PVAV) |
2456 | RETPUSHUNDEF; |
68dc0745 |
2457 | svp = av_fetch(av, elem, lval && !defer); |
a0d0e21e |
2458 | if (lval) { |
3280af22 |
2459 | if (!svp || *svp == &PL_sv_undef) { |
68dc0745 |
2460 | SV* lv; |
2461 | if (!defer) |
cea2e8a9 |
2462 | DIE(aTHX_ PL_no_aelem, elem); |
68dc0745 |
2463 | lv = sv_newmortal(); |
2464 | sv_upgrade(lv, SVt_PVLV); |
2465 | LvTYPE(lv) = 'y'; |
2466 | sv_magic(lv, Nullsv, 'y', Nullch, 0); |
2467 | LvTARG(lv) = SvREFCNT_inc(av); |
2468 | LvTARGOFF(lv) = elem; |
2469 | LvTARGLEN(lv) = 1; |
2470 | PUSHs(lv); |
2471 | RETURN; |
2472 | } |
533c011a |
2473 | if (PL_op->op_private & OPpLVAL_INTRO) |
161b7d16 |
2474 | save_aelem(av, elem, svp); |
533c011a |
2475 | else if (PL_op->op_private & OPpDEREF) |
2476 | vivify_ref(*svp, PL_op->op_private & OPpDEREF); |
a0d0e21e |
2477 | } |
3280af22 |
2478 | sv = (svp ? *svp : &PL_sv_undef); |
be6c24e0 |
2479 | if (!lval && SvGMAGICAL(sv)) /* see note in pp_helem() */ |
2480 | sv = sv_mortalcopy(sv); |
2481 | PUSHs(sv); |
a0d0e21e |
2482 | RETURN; |
2483 | } |
2484 | |
02a9e968 |
2485 | void |
864dbfa3 |
2486 | Perl_vivify_ref(pTHX_ SV *sv, U32 to_what) |
02a9e968 |
2487 | { |
2488 | if (SvGMAGICAL(sv)) |
2489 | mg_get(sv); |
2490 | if (!SvOK(sv)) { |
2491 | if (SvREADONLY(sv)) |
cea2e8a9 |
2492 | Perl_croak(aTHX_ PL_no_modify); |
5f05dabc |
2493 | if (SvTYPE(sv) < SVt_RV) |
2494 | sv_upgrade(sv, SVt_RV); |
2495 | else if (SvTYPE(sv) >= SVt_PV) { |
2496 | (void)SvOOK_off(sv); |
2497 | Safefree(SvPVX(sv)); |
2498 | SvLEN(sv) = SvCUR(sv) = 0; |
2499 | } |
68dc0745 |
2500 | switch (to_what) { |
5f05dabc |
2501 | case OPpDEREF_SV: |
8c52afec |
2502 | SvRV(sv) = NEWSV(355,0); |
5f05dabc |
2503 | break; |
2504 | case OPpDEREF_AV: |
2505 | SvRV(sv) = (SV*)newAV(); |
2506 | break; |
2507 | case OPpDEREF_HV: |
2508 | SvRV(sv) = (SV*)newHV(); |
2509 | break; |
2510 | } |
02a9e968 |
2511 | SvROK_on(sv); |
2512 | SvSETMAGIC(sv); |
2513 | } |
2514 | } |
2515 | |
a0d0e21e |
2516 | PP(pp_method) |
2517 | { |
4e35701f |
2518 | djSP; |
a0d0e21e |
2519 | SV* sv; |
2520 | SV* ob; |
2521 | GV* gv; |
56304f61 |
2522 | HV* stash; |
2523 | char* name; |
ac91690f |
2524 | char* packname; |
2525 | STRLEN packlen; |
a0d0e21e |
2526 | |
fb73857a |
2527 | if (SvROK(TOPs)) { |
2528 | sv = SvRV(TOPs); |
2529 | if (SvTYPE(sv) == SVt_PVCV) { |
2530 | SETs(sv); |
2531 | RETURN; |
2532 | } |
2533 | } |
2534 | |
2d8e6c8d |
2535 | name = SvPV(TOPs, packlen); |
3280af22 |
2536 | sv = *(PL_stack_base + TOPMARK + 1); |
a0d0e21e |
2537 | |
16d20bd9 |
2538 | if (SvGMAGICAL(sv)) |
2539 | mg_get(sv); |
a0d0e21e |
2540 | if (SvROK(sv)) |
16d20bd9 |
2541 | ob = (SV*)SvRV(sv); |
a0d0e21e |
2542 | else { |
2543 | GV* iogv; |
a0d0e21e |
2544 | |
56304f61 |
2545 | packname = Nullch; |
a0d0e21e |
2546 | if (!SvOK(sv) || |
56304f61 |
2547 | !(packname = SvPV(sv, packlen)) || |
a0d0e21e |
2548 | !(iogv = gv_fetchpv(packname, FALSE, SVt_PVIO)) || |
2549 | !(ob=(SV*)GvIO(iogv))) |
2550 | { |
834a4ddd |
2551 | if (!packname || |
2552 | ((*(U8*)packname >= 0xc0 && IN_UTF8) |
b86a2fa7 |
2553 | ? !isIDFIRST_utf8((U8*)packname) |
834a4ddd |
2554 | : !isIDFIRST(*packname) |
2555 | )) |
2556 | { |
cea2e8a9 |
2557 | DIE(aTHX_ "Can't call method \"%s\" %s", name, |
72b5445b |
2558 | SvOK(sv)? "without a package or object reference" |
2559 | : "on an undefined value"); |
834a4ddd |
2560 | } |
56304f61 |
2561 | stash = gv_stashpvn(packname, packlen, TRUE); |
ac91690f |
2562 | goto fetch; |
a0d0e21e |
2563 | } |
3280af22 |
2564 | *(PL_stack_base + TOPMARK + 1) = sv_2mortal(newRV((SV*)iogv)); |
a0d0e21e |
2565 | } |
2566 | |
ac91690f |
2567 | if (!ob || !SvOBJECT(ob)) |
cea2e8a9 |
2568 | DIE(aTHX_ "Can't call method \"%s\" on unblessed reference", name); |
a0d0e21e |
2569 | |
56304f61 |
2570 | stash = SvSTASH(ob); |
a0d0e21e |
2571 | |
ac91690f |
2572 | fetch: |
ac91690f |
2573 | gv = gv_fetchmethod(stash, name); |
56304f61 |
2574 | if (!gv) { |
2575 | char* leaf = name; |
2576 | char* sep = Nullch; |
2577 | char* p; |
2578 | |
2579 | for (p = name; *p; p++) { |
2580 | if (*p == '\'') |
2581 | sep = p, leaf = p + 1; |
2582 | else if (*p == ':' && *(p + 1) == ':') |
2583 | sep = p, leaf = p + 2; |
2584 | } |
2585 | if (!sep || ((sep - name) == 5 && strnEQ(name, "SUPER", 5))) { |
3280af22 |
2586 | packname = HvNAME(sep ? PL_curcop->cop_stash : stash); |
56304f61 |
2587 | packlen = strlen(packname); |
2588 | } |
2589 | else { |
2590 | packname = name; |
2591 | packlen = sep - name; |
2592 | } |
cea2e8a9 |
2593 | DIE(aTHX_ "Can't locate object method \"%s\" via package \"%.*s\"", |
56304f61 |
2594 | leaf, (int)packlen, packname); |
2595 | } |
8ebc5c01 |
2596 | SETs(isGV(gv) ? (SV*)GvCV(gv) : (SV*)gv); |
a0d0e21e |
2597 | RETURN; |
2598 | } |
22239a37 |
2599 | |