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 |
51371543 |
37 | static void unset_cvowner(pTHXo_ void *cvarg); |
11343788 |
38 | #endif /* USE_THREADS */ |
39 | |
a0d0e21e |
40 | PP(pp_const) |
41 | { |
4e35701f |
42 | djSP; |
a0d0e21e |
43 | XPUSHs(cSVOP->op_sv); |
44 | RETURN; |
45 | } |
46 | |
47 | PP(pp_nextstate) |
48 | { |
533c011a |
49 | PL_curcop = (COP*)PL_op; |
a0d0e21e |
50 | TAINT_NOT; /* Each statement is presumed innocent */ |
3280af22 |
51 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e |
52 | FREETMPS; |
53 | return NORMAL; |
54 | } |
55 | |
56 | PP(pp_gvsv) |
57 | { |
4e35701f |
58 | djSP; |
924508f0 |
59 | EXTEND(SP,1); |
533c011a |
60 | if (PL_op->op_private & OPpLVAL_INTRO) |
a0d0e21e |
61 | PUSHs(save_scalar(cGVOP->op_gv)); |
62 | else |
63 | PUSHs(GvSV(cGVOP->op_gv)); |
64 | RETURN; |
65 | } |
66 | |
67 | PP(pp_null) |
68 | { |
69 | return NORMAL; |
70 | } |
71 | |
72 | PP(pp_pushmark) |
73 | { |
3280af22 |
74 | PUSHMARK(PL_stack_sp); |
a0d0e21e |
75 | return NORMAL; |
76 | } |
77 | |
78 | PP(pp_stringify) |
79 | { |
4e35701f |
80 | djSP; dTARGET; |
a0d0e21e |
81 | STRLEN len; |
82 | char *s; |
83 | s = SvPV(TOPs,len); |
84 | sv_setpvn(TARG,s,len); |
85 | SETTARG; |
86 | RETURN; |
87 | } |
88 | |
89 | PP(pp_gv) |
90 | { |
4e35701f |
91 | djSP; |
a0d0e21e |
92 | XPUSHs((SV*)cGVOP->op_gv); |
93 | RETURN; |
94 | } |
95 | |
96 | PP(pp_and) |
97 | { |
4e35701f |
98 | djSP; |
a0d0e21e |
99 | if (!SvTRUE(TOPs)) |
100 | RETURN; |
101 | else { |
102 | --SP; |
103 | RETURNOP(cLOGOP->op_other); |
104 | } |
105 | } |
106 | |
107 | PP(pp_sassign) |
108 | { |
4e35701f |
109 | djSP; dPOPTOPssrl; |
748a9306 |
110 | MAGIC *mg; |
111 | |
533c011a |
112 | if (PL_op->op_private & OPpASSIGN_BACKWARDS) { |
a0d0e21e |
113 | SV *temp; |
114 | temp = left; left = right; right = temp; |
115 | } |
3280af22 |
116 | if (PL_tainting && PL_tainted && !SvTAINTED(left)) |
a0d0e21e |
117 | TAINT_NOT; |
54310121 |
118 | SvSetMagicSV(right, left); |
a0d0e21e |
119 | SETs(right); |
120 | RETURN; |
121 | } |
122 | |
123 | PP(pp_cond_expr) |
124 | { |
4e35701f |
125 | djSP; |
a0d0e21e |
126 | if (SvTRUEx(POPs)) |
1a67a97c |
127 | RETURNOP(cLOGOP->op_other); |
a0d0e21e |
128 | else |
1a67a97c |
129 | RETURNOP(cLOGOP->op_next); |
a0d0e21e |
130 | } |
131 | |
132 | PP(pp_unstack) |
133 | { |
134 | I32 oldsave; |
135 | TAINT_NOT; /* Each statement is presumed innocent */ |
3280af22 |
136 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e |
137 | FREETMPS; |
3280af22 |
138 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e |
139 | LEAVE_SCOPE(oldsave); |
140 | return NORMAL; |
141 | } |
142 | |
a0d0e21e |
143 | PP(pp_concat) |
144 | { |
4e35701f |
145 | djSP; dATARGET; tryAMAGICbin(concat,opASSIGN); |
748a9306 |
146 | { |
147 | dPOPTOPssrl; |
a0d0e21e |
148 | STRLEN len; |
149 | char *s; |
150 | if (TARG != left) { |
151 | s = SvPV(left,len); |
152 | sv_setpvn(TARG,s,len); |
153 | } |
c07a80fd |
154 | else if (SvGMAGICAL(TARG)) |
155 | mg_get(TARG); |
7a4c00b4 |
156 | else if (!SvOK(TARG) && SvTYPE(TARG) <= SVt_PVMG) { |
748a9306 |
157 | sv_setpv(TARG, ""); /* Suppress warning. */ |
7a4c00b4 |
158 | s = SvPV_force(TARG, len); |
4633a7c4 |
159 | } |
a0d0e21e |
160 | s = SvPV(right,len); |
68dc0745 |
161 | if (SvOK(TARG)) |
162 | sv_catpvn(TARG,s,len); |
163 | else |
164 | sv_setpvn(TARG,s,len); /* suppress warning */ |
a0d0e21e |
165 | SETTARG; |
166 | RETURN; |
748a9306 |
167 | } |
a0d0e21e |
168 | } |
169 | |
170 | PP(pp_padsv) |
171 | { |
4e35701f |
172 | djSP; dTARGET; |
a0d0e21e |
173 | XPUSHs(TARG); |
533c011a |
174 | if (PL_op->op_flags & OPf_MOD) { |
175 | if (PL_op->op_private & OPpLVAL_INTRO) |
176 | SAVECLEARSV(PL_curpad[PL_op->op_targ]); |
177 | else if (PL_op->op_private & OPpDEREF) { |
8ec5e241 |
178 | PUTBACK; |
533c011a |
179 | vivify_ref(PL_curpad[PL_op->op_targ], PL_op->op_private & OPpDEREF); |
8ec5e241 |
180 | SPAGAIN; |
181 | } |
4633a7c4 |
182 | } |
a0d0e21e |
183 | RETURN; |
184 | } |
185 | |
186 | PP(pp_readline) |
187 | { |
f5284f61 |
188 | tryAMAGICunTARGET(iter, 0); |
3280af22 |
189 | PL_last_in_gv = (GV*)(*PL_stack_sp--); |
8efb3254 |
190 | if (SvTYPE(PL_last_in_gv) != SVt_PVGV) { |
191 | if (SvROK(PL_last_in_gv) && SvTYPE(SvRV(PL_last_in_gv)) == SVt_PVGV) |
f5284f61 |
192 | PL_last_in_gv = (GV*)SvRV(PL_last_in_gv); |
8efb3254 |
193 | else { |
f5284f61 |
194 | dSP; |
195 | XPUSHs((SV*)PL_last_in_gv); |
196 | PUTBACK; |
cea2e8a9 |
197 | pp_rv2gv(); |
f5284f61 |
198 | PL_last_in_gv = (GV*)(*PL_stack_sp--); |
f5284f61 |
199 | } |
200 | } |
a0d0e21e |
201 | return do_readline(); |
202 | } |
203 | |
204 | PP(pp_eq) |
205 | { |
4e35701f |
206 | djSP; tryAMAGICbinSET(eq,0); |
a0d0e21e |
207 | { |
208 | dPOPnv; |
54310121 |
209 | SETs(boolSV(TOPn == value)); |
a0d0e21e |
210 | RETURN; |
211 | } |
212 | } |
213 | |
214 | PP(pp_preinc) |
215 | { |
4e35701f |
216 | djSP; |
68dc0745 |
217 | if (SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV) |
cea2e8a9 |
218 | Perl_croak(aTHX_ PL_no_modify); |
25da4f38 |
219 | if (SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) && |
55497cff |
220 | SvIVX(TOPs) != IV_MAX) |
221 | { |
748a9306 |
222 | ++SvIVX(TOPs); |
55497cff |
223 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
748a9306 |
224 | } |
225 | else |
226 | sv_inc(TOPs); |
a0d0e21e |
227 | SvSETMAGIC(TOPs); |
228 | return NORMAL; |
229 | } |
230 | |
231 | PP(pp_or) |
232 | { |
4e35701f |
233 | djSP; |
a0d0e21e |
234 | if (SvTRUE(TOPs)) |
235 | RETURN; |
236 | else { |
237 | --SP; |
238 | RETURNOP(cLOGOP->op_other); |
239 | } |
240 | } |
241 | |
242 | PP(pp_add) |
243 | { |
4e35701f |
244 | djSP; dATARGET; tryAMAGICbin(add,opASSIGN); |
a0d0e21e |
245 | { |
7a4c00b4 |
246 | dPOPTOPnnrl_ul; |
a0d0e21e |
247 | SETn( left + right ); |
248 | RETURN; |
249 | } |
250 | } |
251 | |
252 | PP(pp_aelemfast) |
253 | { |
4e35701f |
254 | djSP; |
a0d0e21e |
255 | AV *av = GvAV((GV*)cSVOP->op_sv); |
533c011a |
256 | U32 lval = PL_op->op_flags & OPf_MOD; |
257 | SV** svp = av_fetch(av, PL_op->op_private, lval); |
3280af22 |
258 | SV *sv = (svp ? *svp : &PL_sv_undef); |
6ff81951 |
259 | EXTEND(SP, 1); |
be6c24e0 |
260 | if (!lval && SvGMAGICAL(sv)) /* see note in pp_helem() */ |
261 | sv = sv_mortalcopy(sv); |
262 | PUSHs(sv); |
a0d0e21e |
263 | RETURN; |
264 | } |
265 | |
266 | PP(pp_join) |
267 | { |
4e35701f |
268 | djSP; dMARK; dTARGET; |
a0d0e21e |
269 | MARK++; |
270 | do_join(TARG, *MARK, MARK, SP); |
271 | SP = MARK; |
272 | SETs(TARG); |
273 | RETURN; |
274 | } |
275 | |
276 | PP(pp_pushre) |
277 | { |
4e35701f |
278 | djSP; |
44a8e56a |
279 | #ifdef DEBUGGING |
280 | /* |
281 | * We ass_u_me that LvTARGOFF() comes first, and that two STRLENs |
282 | * will be enough to hold an OP*. |
283 | */ |
284 | SV* sv = sv_newmortal(); |
285 | sv_upgrade(sv, SVt_PVLV); |
286 | LvTYPE(sv) = '/'; |
533c011a |
287 | Copy(&PL_op, &LvTARGOFF(sv), 1, OP*); |
44a8e56a |
288 | XPUSHs(sv); |
289 | #else |
6b88bc9c |
290 | XPUSHs((SV*)PL_op); |
44a8e56a |
291 | #endif |
a0d0e21e |
292 | RETURN; |
293 | } |
294 | |
295 | /* Oversized hot code. */ |
296 | |
297 | PP(pp_print) |
298 | { |
4e35701f |
299 | djSP; dMARK; dORIGMARK; |
a0d0e21e |
300 | GV *gv; |
301 | IO *io; |
760ac839 |
302 | register PerlIO *fp; |
236988e4 |
303 | MAGIC *mg; |
2d8e6c8d |
304 | STRLEN n_a; |
a0d0e21e |
305 | |
533c011a |
306 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e |
307 | gv = (GV*)*++MARK; |
308 | else |
3280af22 |
309 | gv = PL_defoutgv; |
33c27489 |
310 | if (mg = SvTIED_mg((SV*)gv, 'q')) { |
68dc0745 |
311 | if (MARK == ORIGMARK) { |
a60c0954 |
312 | /* If using default handle then we need to make space to |
313 | * pass object as 1st arg, so move other args up ... |
314 | */ |
4352c267 |
315 | MEXTEND(SP, 1); |
68dc0745 |
316 | ++MARK; |
317 | Move(MARK, MARK + 1, (SP - MARK) + 1, SV*); |
318 | ++SP; |
319 | } |
320 | PUSHMARK(MARK - 1); |
33c27489 |
321 | *MARK = SvTIED_obj((SV*)gv, mg); |
68dc0745 |
322 | PUTBACK; |
236988e4 |
323 | ENTER; |
864dbfa3 |
324 | call_method("PRINT", G_SCALAR); |
236988e4 |
325 | LEAVE; |
326 | SPAGAIN; |
68dc0745 |
327 | MARK = ORIGMARK + 1; |
328 | *MARK = *SP; |
329 | SP = MARK; |
236988e4 |
330 | RETURN; |
331 | } |
a0d0e21e |
332 | if (!(io = GvIO(gv))) { |
599cee73 |
333 | if (ckWARN(WARN_UNOPENED)) { |
748a9306 |
334 | SV* sv = sv_newmortal(); |
af8c498a |
335 | gv_efullname3(sv, gv, Nullch); |
336 | Perl_warner(aTHX_ WARN_UNOPENED, "Filehandle %s never opened", |
337 | SvPV(sv,n_a)); |
748a9306 |
338 | } |
748a9306 |
339 | SETERRNO(EBADF,RMS$_IFI); |
a0d0e21e |
340 | goto just_say_no; |
341 | } |
342 | else if (!(fp = IoOFP(io))) { |
599cee73 |
343 | if (ckWARN2(WARN_CLOSED, WARN_IO)) { |
748a9306 |
344 | SV* sv = sv_newmortal(); |
af8c498a |
345 | gv_efullname3(sv, gv, Nullch); |
a0d0e21e |
346 | if (IoIFP(io)) |
af8c498a |
347 | Perl_warner(aTHX_ WARN_IO, |
348 | "Filehandle %s opened only for input", |
349 | SvPV(sv,n_a)); |
599cee73 |
350 | else if (ckWARN(WARN_CLOSED)) |
af8c498a |
351 | Perl_warner(aTHX_ WARN_CLOSED, |
352 | "print on closed filehandle %s", SvPV(sv,n_a)); |
a0d0e21e |
353 | } |
748a9306 |
354 | SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI); |
a0d0e21e |
355 | goto just_say_no; |
356 | } |
357 | else { |
358 | MARK++; |
3280af22 |
359 | if (PL_ofslen) { |
a0d0e21e |
360 | while (MARK <= SP) { |
361 | if (!do_print(*MARK, fp)) |
362 | break; |
363 | MARK++; |
364 | if (MARK <= SP) { |
3280af22 |
365 | if (PerlIO_write(fp, PL_ofs, PL_ofslen) == 0 || PerlIO_error(fp)) { |
a0d0e21e |
366 | MARK--; |
367 | break; |
368 | } |
369 | } |
370 | } |
371 | } |
372 | else { |
373 | while (MARK <= SP) { |
374 | if (!do_print(*MARK, fp)) |
375 | break; |
376 | MARK++; |
377 | } |
378 | } |
379 | if (MARK <= SP) |
380 | goto just_say_no; |
381 | else { |
3280af22 |
382 | if (PL_orslen) |
383 | if (PerlIO_write(fp, PL_ors, PL_orslen) == 0 || PerlIO_error(fp)) |
a0d0e21e |
384 | goto just_say_no; |
385 | |
386 | if (IoFLAGS(io) & IOf_FLUSH) |
760ac839 |
387 | if (PerlIO_flush(fp) == EOF) |
a0d0e21e |
388 | goto just_say_no; |
389 | } |
390 | } |
391 | SP = ORIGMARK; |
3280af22 |
392 | PUSHs(&PL_sv_yes); |
a0d0e21e |
393 | RETURN; |
394 | |
395 | just_say_no: |
396 | SP = ORIGMARK; |
3280af22 |
397 | PUSHs(&PL_sv_undef); |
a0d0e21e |
398 | RETURN; |
399 | } |
400 | |
401 | PP(pp_rv2av) |
402 | { |
f5284f61 |
403 | djSP; dTOPss; |
a0d0e21e |
404 | AV *av; |
405 | |
406 | if (SvROK(sv)) { |
407 | wasref: |
f5284f61 |
408 | tryAMAGICunDEREF(to_av); |
409 | |
a0d0e21e |
410 | av = (AV*)SvRV(sv); |
411 | if (SvTYPE(av) != SVt_PVAV) |
cea2e8a9 |
412 | DIE(aTHX_ "Not an ARRAY reference"); |
533c011a |
413 | if (PL_op->op_flags & OPf_REF) { |
f5284f61 |
414 | SETs((SV*)av); |
a0d0e21e |
415 | RETURN; |
416 | } |
417 | } |
418 | else { |
419 | if (SvTYPE(sv) == SVt_PVAV) { |
420 | av = (AV*)sv; |
533c011a |
421 | if (PL_op->op_flags & OPf_REF) { |
f5284f61 |
422 | SETs((SV*)av); |
a0d0e21e |
423 | RETURN; |
424 | } |
425 | } |
426 | else { |
67955e0c |
427 | GV *gv; |
428 | |
a0d0e21e |
429 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 |
430 | char *sym; |
2d8e6c8d |
431 | STRLEN n_a; |
748a9306 |
432 | |
a0d0e21e |
433 | if (SvGMAGICAL(sv)) { |
434 | mg_get(sv); |
435 | if (SvROK(sv)) |
436 | goto wasref; |
437 | } |
438 | if (!SvOK(sv)) { |
533c011a |
439 | if (PL_op->op_flags & OPf_REF || |
440 | PL_op->op_private & HINT_STRICT_REFS) |
cea2e8a9 |
441 | DIE(aTHX_ PL_no_usym, "an ARRAY"); |
599cee73 |
442 | if (ckWARN(WARN_UNINITIALIZED)) |
cea2e8a9 |
443 | Perl_warner(aTHX_ WARN_UNINITIALIZED, PL_warn_uninit); |
f5284f61 |
444 | if (GIMME == G_ARRAY) { |
c2444246 |
445 | (void)POPs; |
4633a7c4 |
446 | RETURN; |
f5284f61 |
447 | } |
448 | RETSETUNDEF; |
a0d0e21e |
449 | } |
2d8e6c8d |
450 | sym = SvPV(sv,n_a); |
35cd451c |
451 | if ((PL_op->op_flags & OPf_SPECIAL) && |
452 | !(PL_op->op_flags & OPf_MOD)) |
453 | { |
454 | gv = (GV*)gv_fetchpv(sym, FALSE, SVt_PVAV); |
455 | if (!gv) |
456 | RETSETUNDEF; |
457 | } |
458 | else { |
459 | if (PL_op->op_private & HINT_STRICT_REFS) |
cea2e8a9 |
460 | DIE(aTHX_ PL_no_symref, sym, "an ARRAY"); |
35cd451c |
461 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVAV); |
462 | } |
463 | } |
464 | else { |
67955e0c |
465 | gv = (GV*)sv; |
a0d0e21e |
466 | } |
67955e0c |
467 | av = GvAVn(gv); |
533c011a |
468 | if (PL_op->op_private & OPpLVAL_INTRO) |
67955e0c |
469 | av = save_ary(gv); |
533c011a |
470 | if (PL_op->op_flags & OPf_REF) { |
f5284f61 |
471 | SETs((SV*)av); |
a0d0e21e |
472 | RETURN; |
473 | } |
474 | } |
475 | } |
476 | |
477 | if (GIMME == G_ARRAY) { |
478 | I32 maxarg = AvFILL(av) + 1; |
c2444246 |
479 | (void)POPs; /* XXXX May be optimized away? */ |
93965878 |
480 | EXTEND(SP, maxarg); |
481 | if (SvRMAGICAL(av)) { |
482 | U32 i; |
483 | for (i=0; i < maxarg; i++) { |
484 | SV **svp = av_fetch(av, i, FALSE); |
3280af22 |
485 | SP[i+1] = (svp) ? *svp : &PL_sv_undef; |
93965878 |
486 | } |
487 | } |
488 | else { |
489 | Copy(AvARRAY(av), SP+1, maxarg, SV*); |
490 | } |
a0d0e21e |
491 | SP += maxarg; |
492 | } |
493 | else { |
494 | dTARGET; |
495 | I32 maxarg = AvFILL(av) + 1; |
f5284f61 |
496 | SETi(maxarg); |
a0d0e21e |
497 | } |
498 | RETURN; |
499 | } |
500 | |
501 | PP(pp_rv2hv) |
502 | { |
4e35701f |
503 | djSP; dTOPss; |
a0d0e21e |
504 | HV *hv; |
505 | |
506 | if (SvROK(sv)) { |
507 | wasref: |
f5284f61 |
508 | tryAMAGICunDEREF(to_hv); |
509 | |
a0d0e21e |
510 | hv = (HV*)SvRV(sv); |
c750a3ec |
511 | if (SvTYPE(hv) != SVt_PVHV && SvTYPE(hv) != SVt_PVAV) |
cea2e8a9 |
512 | DIE(aTHX_ "Not a HASH reference"); |
533c011a |
513 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e |
514 | SETs((SV*)hv); |
515 | RETURN; |
516 | } |
517 | } |
518 | else { |
c750a3ec |
519 | if (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) { |
a0d0e21e |
520 | hv = (HV*)sv; |
533c011a |
521 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e |
522 | SETs((SV*)hv); |
523 | RETURN; |
524 | } |
525 | } |
526 | else { |
67955e0c |
527 | GV *gv; |
528 | |
a0d0e21e |
529 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 |
530 | char *sym; |
2d8e6c8d |
531 | STRLEN n_a; |
748a9306 |
532 | |
a0d0e21e |
533 | if (SvGMAGICAL(sv)) { |
534 | mg_get(sv); |
535 | if (SvROK(sv)) |
536 | goto wasref; |
537 | } |
538 | if (!SvOK(sv)) { |
533c011a |
539 | if (PL_op->op_flags & OPf_REF || |
540 | PL_op->op_private & HINT_STRICT_REFS) |
cea2e8a9 |
541 | DIE(aTHX_ PL_no_usym, "a HASH"); |
599cee73 |
542 | if (ckWARN(WARN_UNINITIALIZED)) |
cea2e8a9 |
543 | Perl_warner(aTHX_ WARN_UNINITIALIZED, PL_warn_uninit); |
4633a7c4 |
544 | if (GIMME == G_ARRAY) { |
545 | SP--; |
546 | RETURN; |
547 | } |
a0d0e21e |
548 | RETSETUNDEF; |
549 | } |
2d8e6c8d |
550 | sym = SvPV(sv,n_a); |
35cd451c |
551 | if ((PL_op->op_flags & OPf_SPECIAL) && |
552 | !(PL_op->op_flags & OPf_MOD)) |
553 | { |
554 | gv = (GV*)gv_fetchpv(sym, FALSE, SVt_PVHV); |
555 | if (!gv) |
556 | RETSETUNDEF; |
557 | } |
558 | else { |
559 | if (PL_op->op_private & HINT_STRICT_REFS) |
cea2e8a9 |
560 | DIE(aTHX_ PL_no_symref, sym, "a HASH"); |
35cd451c |
561 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVHV); |
562 | } |
563 | } |
564 | else { |
67955e0c |
565 | gv = (GV*)sv; |
a0d0e21e |
566 | } |
67955e0c |
567 | hv = GvHVn(gv); |
533c011a |
568 | if (PL_op->op_private & OPpLVAL_INTRO) |
67955e0c |
569 | hv = save_hash(gv); |
533c011a |
570 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e |
571 | SETs((SV*)hv); |
572 | RETURN; |
573 | } |
574 | } |
575 | } |
576 | |
577 | if (GIMME == G_ARRAY) { /* array wanted */ |
3280af22 |
578 | *PL_stack_sp = (SV*)hv; |
cea2e8a9 |
579 | return do_kv(); |
a0d0e21e |
580 | } |
581 | else { |
582 | dTARGET; |
4b154ab5 |
583 | if (SvTYPE(hv) == SVt_PVAV) |
584 | hv = avhv_keys((AV*)hv); |
46fc3d4c |
585 | if (HvFILL(hv)) |
cea2e8a9 |
586 | Perl_sv_setpvf(aTHX_ TARG, "%ld/%ld", |
46fc3d4c |
587 | (long)HvFILL(hv), (long)HvMAX(hv) + 1); |
a0d0e21e |
588 | else |
589 | sv_setiv(TARG, 0); |
c750a3ec |
590 | |
a0d0e21e |
591 | SETTARG; |
592 | RETURN; |
593 | } |
594 | } |
595 | |
596 | PP(pp_aassign) |
597 | { |
4e35701f |
598 | djSP; |
3280af22 |
599 | SV **lastlelem = PL_stack_sp; |
600 | SV **lastrelem = PL_stack_base + POPMARK; |
601 | SV **firstrelem = PL_stack_base + POPMARK + 1; |
a0d0e21e |
602 | SV **firstlelem = lastrelem + 1; |
603 | |
604 | register SV **relem; |
605 | register SV **lelem; |
606 | |
607 | register SV *sv; |
608 | register AV *ary; |
609 | |
54310121 |
610 | I32 gimme; |
a0d0e21e |
611 | HV *hash; |
612 | I32 i; |
613 | int magic; |
614 | |
3280af22 |
615 | PL_delaymagic = DM_DELAY; /* catch simultaneous items */ |
a0d0e21e |
616 | |
617 | /* If there's a common identifier on both sides we have to take |
618 | * special care that assigning the identifier on the left doesn't |
619 | * clobber a value on the right that's used later in the list. |
620 | */ |
533c011a |
621 | if (PL_op->op_private & OPpASSIGN_COMMON) { |
cc5e57d2 |
622 | EXTEND_MORTAL(lastrelem - firstrelem + 1); |
a0d0e21e |
623 | for (relem = firstrelem; relem <= lastrelem; relem++) { |
624 | /*SUPPRESS 560*/ |
a1f49e72 |
625 | if (sv = *relem) { |
626 | TAINT_NOT; /* Each item is independent */ |
a0d0e21e |
627 | *relem = sv_mortalcopy(sv); |
a1f49e72 |
628 | } |
a0d0e21e |
629 | } |
630 | } |
631 | |
632 | relem = firstrelem; |
633 | lelem = firstlelem; |
634 | ary = Null(AV*); |
635 | hash = Null(HV*); |
636 | while (lelem <= lastlelem) { |
bbce6d69 |
637 | TAINT_NOT; /* Each item stands on its own, taintwise. */ |
a0d0e21e |
638 | sv = *lelem++; |
639 | switch (SvTYPE(sv)) { |
640 | case SVt_PVAV: |
641 | ary = (AV*)sv; |
748a9306 |
642 | magic = SvMAGICAL(ary) != 0; |
a0d0e21e |
643 | |
644 | av_clear(ary); |
7e42bd57 |
645 | av_extend(ary, lastrelem - relem); |
a0d0e21e |
646 | i = 0; |
647 | while (relem <= lastrelem) { /* gobble up all the rest */ |
5117ca91 |
648 | SV **didstore; |
a0d0e21e |
649 | sv = NEWSV(28,0); |
650 | assert(*relem); |
651 | sv_setsv(sv,*relem); |
652 | *(relem++) = sv; |
5117ca91 |
653 | didstore = av_store(ary,i++,sv); |
654 | if (magic) { |
fb73857a |
655 | if (SvSMAGICAL(sv)) |
656 | mg_set(sv); |
5117ca91 |
657 | if (!didstore) |
8127e0e3 |
658 | sv_2mortal(sv); |
5117ca91 |
659 | } |
bbce6d69 |
660 | TAINT_NOT; |
a0d0e21e |
661 | } |
662 | break; |
663 | case SVt_PVHV: { |
a0d0e21e |
664 | SV *tmpstr; |
665 | |
666 | hash = (HV*)sv; |
748a9306 |
667 | magic = SvMAGICAL(hash) != 0; |
a0d0e21e |
668 | hv_clear(hash); |
669 | |
670 | while (relem < lastrelem) { /* gobble up all the rest */ |
5117ca91 |
671 | HE *didstore; |
4633a7c4 |
672 | if (*relem) |
a0d0e21e |
673 | sv = *(relem++); |
4633a7c4 |
674 | else |
3280af22 |
675 | sv = &PL_sv_no, relem++; |
a0d0e21e |
676 | tmpstr = NEWSV(29,0); |
677 | if (*relem) |
678 | sv_setsv(tmpstr,*relem); /* value */ |
679 | *(relem++) = tmpstr; |
5117ca91 |
680 | didstore = hv_store_ent(hash,sv,tmpstr,0); |
681 | if (magic) { |
fb73857a |
682 | if (SvSMAGICAL(tmpstr)) |
683 | mg_set(tmpstr); |
5117ca91 |
684 | if (!didstore) |
8127e0e3 |
685 | sv_2mortal(tmpstr); |
5117ca91 |
686 | } |
bbce6d69 |
687 | TAINT_NOT; |
8e07c86e |
688 | } |
6a0deba8 |
689 | if (relem == lastrelem) { |
690 | if (*relem) { |
691 | HE *didstore; |
599cee73 |
692 | if (ckWARN(WARN_UNSAFE)) { |
6a0deba8 |
693 | if (relem == firstrelem && |
694 | SvROK(*relem) && |
695 | ( SvTYPE(SvRV(*relem)) == SVt_PVAV || |
696 | SvTYPE(SvRV(*relem)) == SVt_PVHV ) ) |
cea2e8a9 |
697 | Perl_warner(aTHX_ WARN_UNSAFE, "Reference found where even-sized list expected"); |
6a0deba8 |
698 | else |
cea2e8a9 |
699 | Perl_warner(aTHX_ WARN_UNSAFE, "Odd number of elements in hash assignment"); |
6a0deba8 |
700 | } |
701 | tmpstr = NEWSV(29,0); |
702 | didstore = hv_store_ent(hash,*relem,tmpstr,0); |
703 | if (magic) { |
704 | if (SvSMAGICAL(tmpstr)) |
705 | mg_set(tmpstr); |
706 | if (!didstore) |
8127e0e3 |
707 | sv_2mortal(tmpstr); |
6a0deba8 |
708 | } |
709 | TAINT_NOT; |
710 | } |
711 | relem++; |
1930e939 |
712 | } |
a0d0e21e |
713 | } |
714 | break; |
715 | default: |
6fc92669 |
716 | if (SvIMMORTAL(sv)) { |
717 | if (relem <= lastrelem) |
718 | relem++; |
719 | break; |
a0d0e21e |
720 | } |
721 | if (relem <= lastrelem) { |
722 | sv_setsv(sv, *relem); |
723 | *(relem++) = sv; |
724 | } |
725 | else |
3280af22 |
726 | sv_setsv(sv, &PL_sv_undef); |
a0d0e21e |
727 | SvSETMAGIC(sv); |
728 | break; |
729 | } |
730 | } |
3280af22 |
731 | if (PL_delaymagic & ~DM_DELAY) { |
732 | if (PL_delaymagic & DM_UID) { |
a0d0e21e |
733 | #ifdef HAS_SETRESUID |
b28d0864 |
734 | (void)setresuid(PL_uid,PL_euid,(Uid_t)-1); |
56febc5e |
735 | #else |
736 | # ifdef HAS_SETREUID |
3280af22 |
737 | (void)setreuid(PL_uid,PL_euid); |
56febc5e |
738 | # else |
739 | # ifdef HAS_SETRUID |
b28d0864 |
740 | if ((PL_delaymagic & DM_UID) == DM_RUID) { |
741 | (void)setruid(PL_uid); |
742 | PL_delaymagic &= ~DM_RUID; |
a0d0e21e |
743 | } |
56febc5e |
744 | # endif /* HAS_SETRUID */ |
745 | # ifdef HAS_SETEUID |
b28d0864 |
746 | if ((PL_delaymagic & DM_UID) == DM_EUID) { |
747 | (void)seteuid(PL_uid); |
748 | PL_delaymagic &= ~DM_EUID; |
a0d0e21e |
749 | } |
56febc5e |
750 | # endif /* HAS_SETEUID */ |
b28d0864 |
751 | if (PL_delaymagic & DM_UID) { |
752 | if (PL_uid != PL_euid) |
cea2e8a9 |
753 | DIE(aTHX_ "No setreuid available"); |
b28d0864 |
754 | (void)PerlProc_setuid(PL_uid); |
a0d0e21e |
755 | } |
56febc5e |
756 | # endif /* HAS_SETREUID */ |
757 | #endif /* HAS_SETRESUID */ |
3280af22 |
758 | PL_uid = (int)PerlProc_getuid(); |
759 | PL_euid = (int)PerlProc_geteuid(); |
a0d0e21e |
760 | } |
3280af22 |
761 | if (PL_delaymagic & DM_GID) { |
a0d0e21e |
762 | #ifdef HAS_SETRESGID |
b28d0864 |
763 | (void)setresgid(PL_gid,PL_egid,(Gid_t)-1); |
56febc5e |
764 | #else |
765 | # ifdef HAS_SETREGID |
3280af22 |
766 | (void)setregid(PL_gid,PL_egid); |
56febc5e |
767 | # else |
768 | # ifdef HAS_SETRGID |
b28d0864 |
769 | if ((PL_delaymagic & DM_GID) == DM_RGID) { |
770 | (void)setrgid(PL_gid); |
771 | PL_delaymagic &= ~DM_RGID; |
a0d0e21e |
772 | } |
56febc5e |
773 | # endif /* HAS_SETRGID */ |
774 | # ifdef HAS_SETEGID |
b28d0864 |
775 | if ((PL_delaymagic & DM_GID) == DM_EGID) { |
776 | (void)setegid(PL_gid); |
777 | PL_delaymagic &= ~DM_EGID; |
a0d0e21e |
778 | } |
56febc5e |
779 | # endif /* HAS_SETEGID */ |
b28d0864 |
780 | if (PL_delaymagic & DM_GID) { |
781 | if (PL_gid != PL_egid) |
cea2e8a9 |
782 | DIE(aTHX_ "No setregid available"); |
b28d0864 |
783 | (void)PerlProc_setgid(PL_gid); |
a0d0e21e |
784 | } |
56febc5e |
785 | # endif /* HAS_SETREGID */ |
786 | #endif /* HAS_SETRESGID */ |
3280af22 |
787 | PL_gid = (int)PerlProc_getgid(); |
788 | PL_egid = (int)PerlProc_getegid(); |
a0d0e21e |
789 | } |
3280af22 |
790 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
a0d0e21e |
791 | } |
3280af22 |
792 | PL_delaymagic = 0; |
54310121 |
793 | |
794 | gimme = GIMME_V; |
795 | if (gimme == G_VOID) |
796 | SP = firstrelem - 1; |
797 | else if (gimme == G_SCALAR) { |
798 | dTARGET; |
799 | SP = firstrelem; |
800 | SETi(lastrelem - firstrelem + 1); |
801 | } |
802 | else { |
a0d0e21e |
803 | if (ary || hash) |
804 | SP = lastrelem; |
805 | else |
806 | SP = firstrelem + (lastlelem - firstlelem); |
0c8c7a05 |
807 | lelem = firstlelem + (relem - firstrelem); |
5f05dabc |
808 | while (relem <= SP) |
3280af22 |
809 | *relem++ = (lelem <= lastlelem) ? *lelem++ : &PL_sv_undef; |
a0d0e21e |
810 | } |
54310121 |
811 | RETURN; |
a0d0e21e |
812 | } |
813 | |
8782bef2 |
814 | PP(pp_qr) |
815 | { |
816 | djSP; |
817 | register PMOP *pm = cPMOP; |
818 | SV *rv = sv_newmortal(); |
57668c4d |
819 | SV *sv = newSVrv(rv, "Regexp"); |
8782bef2 |
820 | sv_magic(sv,(SV*)ReREFCNT_inc(pm->op_pmregexp),'r',0,0); |
821 | RETURNX(PUSHs(rv)); |
822 | } |
823 | |
a0d0e21e |
824 | PP(pp_match) |
825 | { |
4e35701f |
826 | djSP; dTARG; |
a0d0e21e |
827 | register PMOP *pm = cPMOP; |
828 | register char *t; |
829 | register char *s; |
830 | char *strend; |
831 | I32 global; |
f722798b |
832 | I32 r_flags = REXEC_CHECKED; |
833 | char *truebase; /* Start of string */ |
d9f97599 |
834 | register REGEXP *rx = pm->op_pmregexp; |
b3eb6a9b |
835 | bool rxtainted; |
a0d0e21e |
836 | I32 gimme = GIMME; |
837 | STRLEN len; |
748a9306 |
838 | I32 minmatch = 0; |
3280af22 |
839 | I32 oldsave = PL_savestack_ix; |
f86702cc |
840 | I32 update_minmatch = 1; |
e60df1fa |
841 | I32 had_zerolen = 0; |
a0d0e21e |
842 | |
533c011a |
843 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e |
844 | TARG = POPs; |
845 | else { |
54b9620d |
846 | TARG = DEFSV; |
a0d0e21e |
847 | EXTEND(SP,1); |
848 | } |
c277df42 |
849 | PUTBACK; /* EVAL blocks need stack_sp. */ |
a0d0e21e |
850 | s = SvPV(TARG, len); |
851 | strend = s + len; |
852 | if (!s) |
cea2e8a9 |
853 | DIE(aTHX_ "panic: do_match"); |
b3eb6a9b |
854 | rxtainted = ((pm->op_pmdynflags & PMdf_TAINTED) || |
3280af22 |
855 | (PL_tainted && (pm->op_pmflags & PMf_RETAINT))); |
9212bbba |
856 | TAINT_NOT; |
a0d0e21e |
857 | |
48c036b1 |
858 | if (pm->op_pmdynflags & PMdf_USED) { |
c277df42 |
859 | failure: |
a0d0e21e |
860 | if (gimme == G_ARRAY) |
861 | RETURN; |
862 | RETPUSHNO; |
863 | } |
864 | |
3280af22 |
865 | if (!rx->prelen && PL_curpm) { |
866 | pm = PL_curpm; |
d9f97599 |
867 | rx = pm->op_pmregexp; |
a0d0e21e |
868 | } |
d9f97599 |
869 | if (rx->minlen > len) goto failure; |
c277df42 |
870 | |
a0d0e21e |
871 | truebase = t = s; |
ad94a511 |
872 | |
873 | /* XXXX What part of this is needed with true \G-support? */ |
a0d0e21e |
874 | if (global = pm->op_pmflags & PMf_GLOBAL) { |
cf93c79d |
875 | rx->startp[0] = -1; |
a0d0e21e |
876 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
877 | MAGIC* mg = mg_find(TARG, 'g'); |
565764a8 |
878 | if (mg && mg->mg_len >= 0) { |
b7a35066 |
879 | if (!(rx->reganch & ROPT_GPOS_SEEN)) |
cf93c79d |
880 | rx->endp[0] = rx->startp[0] = mg->mg_len; |
0ef3e39e |
881 | else if (rx->reganch & ROPT_ANCH_GPOS) { |
882 | r_flags |= REXEC_IGNOREPOS; |
cf93c79d |
883 | rx->endp[0] = rx->startp[0] = mg->mg_len; |
0ef3e39e |
884 | } |
748a9306 |
885 | minmatch = (mg->mg_flags & MGf_MINMATCH); |
f86702cc |
886 | update_minmatch = 0; |
748a9306 |
887 | } |
a0d0e21e |
888 | } |
889 | } |
0ef3e39e |
890 | if ((gimme != G_ARRAY && !global && rx->nparens) |
891 | || SvTEMP(TARG) || PL_sawampersand) |
892 | r_flags |= REXEC_COPY_STR; |
f722798b |
893 | if (SvSCREAM(TARG)) |
22e551b9 |
894 | r_flags |= REXEC_SCREAM; |
895 | |
a0d0e21e |
896 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
3280af22 |
897 | SAVEINT(PL_multiline); |
898 | PL_multiline = pm->op_pmflags & PMf_MULTILINE; |
a0d0e21e |
899 | } |
900 | |
901 | play_it_again: |
cf93c79d |
902 | if (global && rx->startp[0] != -1) { |
903 | t = s = rx->endp[0] + truebase; |
d9f97599 |
904 | if ((s + rx->minlen) > strend) |
a0d0e21e |
905 | goto nope; |
f86702cc |
906 | if (update_minmatch++) |
e60df1fa |
907 | minmatch = had_zerolen; |
a0d0e21e |
908 | } |
f722798b |
909 | if (rx->reganch & RE_USE_INTUIT) { |
910 | s = CALLREG_INTUIT_START(aTHX_ rx, TARG, s, strend, r_flags, NULL); |
911 | |
912 | if (!s) |
913 | goto nope; |
914 | if ( (rx->reganch & ROPT_CHECK_ALL) |
915 | && !PL_sawampersand |
916 | && ((rx->reganch & ROPT_NOSCAN) |
917 | || !((rx->reganch & RE_INTUIT_TAIL) |
918 | && (r_flags & REXEC_SCREAM)))) |
919 | goto yup; |
a0d0e21e |
920 | } |
cea2e8a9 |
921 | if (CALLREGEXEC(aTHX_ rx, s, strend, truebase, minmatch, TARG, NULL, r_flags)) |
bbce6d69 |
922 | { |
3280af22 |
923 | PL_curpm = pm; |
a0d0e21e |
924 | if (pm->op_pmflags & PMf_ONCE) |
48c036b1 |
925 | pm->op_pmdynflags |= PMdf_USED; |
a0d0e21e |
926 | goto gotcha; |
927 | } |
928 | else |
929 | goto ret_no; |
930 | /*NOTREACHED*/ |
931 | |
932 | gotcha: |
72311751 |
933 | if (rxtainted) |
934 | RX_MATCH_TAINTED_on(rx); |
935 | TAINT_IF(RX_MATCH_TAINTED(rx)); |
a0d0e21e |
936 | if (gimme == G_ARRAY) { |
937 | I32 iters, i, len; |
938 | |
d9f97599 |
939 | iters = rx->nparens; |
a0d0e21e |
940 | if (global && !iters) |
941 | i = 1; |
942 | else |
943 | i = 0; |
c277df42 |
944 | SPAGAIN; /* EVAL blocks could move the stack. */ |
a0d0e21e |
945 | EXTEND(SP, iters + i); |
bbce6d69 |
946 | EXTEND_MORTAL(iters + i); |
a0d0e21e |
947 | for (i = !i; i <= iters; i++) { |
948 | PUSHs(sv_newmortal()); |
949 | /*SUPPRESS 560*/ |
cf93c79d |
950 | if ((rx->startp[i] != -1) && rx->endp[i] != -1 ) { |
951 | len = rx->endp[i] - rx->startp[i]; |
952 | s = rx->startp[i] + truebase; |
a0d0e21e |
953 | sv_setpvn(*SP, s, len); |
954 | } |
955 | } |
956 | if (global) { |
cf93c79d |
957 | had_zerolen = (rx->startp[0] != -1 |
958 | && rx->startp[0] == rx->endp[0]); |
c277df42 |
959 | PUTBACK; /* EVAL blocks may use stack */ |
cf93c79d |
960 | r_flags |= REXEC_IGNOREPOS | REXEC_NOT_FIRST; |
a0d0e21e |
961 | goto play_it_again; |
962 | } |
f7e33566 |
963 | else if (!iters) |
bde848c5 |
964 | XPUSHs(&PL_sv_yes); |
4633a7c4 |
965 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
966 | RETURN; |
967 | } |
968 | else { |
969 | if (global) { |
970 | MAGIC* mg = 0; |
971 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) |
972 | mg = mg_find(TARG, 'g'); |
973 | if (!mg) { |
974 | sv_magic(TARG, (SV*)0, 'g', Nullch, 0); |
975 | mg = mg_find(TARG, 'g'); |
976 | } |
cf93c79d |
977 | if (rx->startp[0] != -1) { |
978 | mg->mg_len = rx->endp[0]; |
d9f97599 |
979 | if (rx->startp[0] == rx->endp[0]) |
748a9306 |
980 | mg->mg_flags |= MGf_MINMATCH; |
981 | else |
982 | mg->mg_flags &= ~MGf_MINMATCH; |
983 | } |
a0d0e21e |
984 | } |
4633a7c4 |
985 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
986 | RETPUSHYES; |
987 | } |
988 | |
f722798b |
989 | yup: /* Confirmed by INTUIT */ |
72311751 |
990 | if (rxtainted) |
991 | RX_MATCH_TAINTED_on(rx); |
992 | TAINT_IF(RX_MATCH_TAINTED(rx)); |
3280af22 |
993 | PL_curpm = pm; |
a0d0e21e |
994 | if (pm->op_pmflags & PMf_ONCE) |
48c036b1 |
995 | pm->op_pmdynflags |= PMdf_USED; |
cf93c79d |
996 | if (RX_MATCH_COPIED(rx)) |
997 | Safefree(rx->subbeg); |
998 | RX_MATCH_COPIED_off(rx); |
999 | rx->subbeg = Nullch; |
a0d0e21e |
1000 | if (global) { |
d9f97599 |
1001 | rx->subbeg = truebase; |
cf93c79d |
1002 | rx->startp[0] = s - truebase; |
f722798b |
1003 | rx->endp[0] = s - truebase + rx->minlen; |
cf93c79d |
1004 | rx->sublen = strend - truebase; |
a0d0e21e |
1005 | goto gotcha; |
cf93c79d |
1006 | } |
3280af22 |
1007 | if (PL_sawampersand) { |
cf93c79d |
1008 | I32 off; |
a0d0e21e |
1009 | |
cf93c79d |
1010 | rx->subbeg = savepvn(t, strend - t); |
1011 | rx->sublen = strend - t; |
1012 | RX_MATCH_COPIED_on(rx); |
1013 | off = rx->startp[0] = s - t; |
f722798b |
1014 | rx->endp[0] = off + rx->minlen; |
cf93c79d |
1015 | } |
1016 | else { /* startp/endp are used by @- @+. */ |
1017 | rx->startp[0] = s - truebase; |
f722798b |
1018 | rx->endp[0] = s - truebase + rx->minlen; |
a0d0e21e |
1019 | } |
4633a7c4 |
1020 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1021 | RETPUSHYES; |
1022 | |
1023 | nope: |
a0d0e21e |
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 * |
864dbfa3 |
1039 | Perl_do_readline(pTHX) |
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 | |
33c27489 |
1051 | if (mg = SvTIED_mg((SV*)PL_last_in_gv, 'q')) { |
e79b0511 |
1052 | PUSHMARK(SP); |
33c27489 |
1053 | XPUSHs(SvTIED_obj((SV*)PL_last_in_gv, mg)); |
e79b0511 |
1054 | PUTBACK; |
1055 | ENTER; |
864dbfa3 |
1056 | 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--; |
af8c498a |
1214 | else if (ckWARN(WARN_IO) /* stdout/stderr or other write fh */ |
1215 | && (IoTYPE(io) == '>' || fp == PerlIO_stdout() |
1216 | || fp == PerlIO_stderr())) |
1217 | { |
1218 | SV* sv = sv_newmortal(); |
1219 | gv_efullname3(sv, PL_last_in_gv, Nullch); |
1220 | Perl_warner(aTHX_ WARN_IO, "Filehandle %s opened only for output", |
1221 | SvPV_nolen(sv)); |
1222 | } |
a0d0e21e |
1223 | } |
1224 | if (!fp) { |
3f4520fe |
1225 | if (ckWARN(WARN_CLOSED) && io && !(IoFLAGS(io) & IOf_START)) { |
1226 | if (type == OP_GLOB) |
af8c498a |
1227 | Perl_warner(aTHX_ WARN_CLOSED, |
1228 | "glob failed (can't start child: %s)", |
1229 | Strerror(errno)); |
1230 | else { |
1231 | SV* sv = sv_newmortal(); |
1232 | gv_efullname3(sv, PL_last_in_gv, Nullch); |
1233 | Perl_warner(aTHX_ WARN_CLOSED, |
1234 | "Read on closed filehandle %s", |
1235 | SvPV_nolen(sv)); |
1236 | } |
3f4520fe |
1237 | } |
54310121 |
1238 | if (gimme == G_SCALAR) { |
a0d0e21e |
1239 | (void)SvOK_off(TARG); |
1240 | PUSHTARG; |
1241 | } |
1242 | RETURN; |
1243 | } |
a2008d6d |
1244 | have_fp: |
54310121 |
1245 | if (gimme == G_SCALAR) { |
a0d0e21e |
1246 | sv = TARG; |
9607fc9c |
1247 | if (SvROK(sv)) |
1248 | sv_unref(sv); |
a0d0e21e |
1249 | (void)SvUPGRADE(sv, SVt_PV); |
1250 | tmplen = SvLEN(sv); /* remember if already alloced */ |
1251 | if (!tmplen) |
1252 | Sv_Grow(sv, 80); /* try short-buffering it */ |
1253 | if (type == OP_RCATLINE) |
1254 | offset = SvCUR(sv); |
1255 | else |
1256 | offset = 0; |
1257 | } |
54310121 |
1258 | else { |
1259 | sv = sv_2mortal(NEWSV(57, 80)); |
1260 | offset = 0; |
1261 | } |
fbad3eb5 |
1262 | |
1263 | /* flip-flop EOF state for a snarfed empty file */ |
1264 | #define SNARF_EOF(gimme,rs,io,sv) \ |
1265 | ((gimme != G_SCALAR || SvCUR(sv) \ |
1266 | || (IoFLAGS(io) & IOf_NOLINE) || IoLINES(io) || !RsSNARF(rs)) \ |
1267 | ? ((IoFLAGS(io) &= ~IOf_NOLINE), TRUE) \ |
1268 | : ((IoFLAGS(io) |= IOf_NOLINE), FALSE)) |
1269 | |
a0d0e21e |
1270 | for (;;) { |
fbad3eb5 |
1271 | if (!sv_gets(sv, fp, offset) |
1272 | && (type == OP_GLOB || SNARF_EOF(gimme, PL_rs, io, sv))) |
1273 | { |
760ac839 |
1274 | PerlIO_clearerr(fp); |
a0d0e21e |
1275 | if (IoFLAGS(io) & IOf_ARGV) { |
3280af22 |
1276 | fp = nextargv(PL_last_in_gv); |
a0d0e21e |
1277 | if (fp) |
1278 | continue; |
3280af22 |
1279 | (void)do_close(PL_last_in_gv, FALSE); |
a0d0e21e |
1280 | IoFLAGS(io) |= IOf_START; |
1281 | } |
1282 | else if (type == OP_GLOB) { |
4eb79ab5 |
1283 | if (!do_close(PL_last_in_gv, FALSE) && ckWARN(WARN_CLOSED)) { |
cea2e8a9 |
1284 | Perl_warner(aTHX_ WARN_CLOSED, |
4eb79ab5 |
1285 | "glob failed (child exited with status %d%s)", |
1286 | STATUS_CURRENT >> 8, |
cf494569 |
1287 | (STATUS_CURRENT & 0x80) ? ", core dumped" : ""); |
4eb79ab5 |
1288 | } |
a0d0e21e |
1289 | } |
54310121 |
1290 | if (gimme == G_SCALAR) { |
a0d0e21e |
1291 | (void)SvOK_off(TARG); |
1292 | PUSHTARG; |
1293 | } |
1294 | RETURN; |
1295 | } |
bbce6d69 |
1296 | /* This should not be marked tainted if the fp is marked clean */ |
1297 | if (!(IoFLAGS(io) & IOf_UNTAINT)) { |
1298 | TAINT; |
1299 | SvTAINTED_on(sv); |
1300 | } |
a0d0e21e |
1301 | IoLINES(io)++; |
71be2cbc |
1302 | SvSETMAGIC(sv); |
a0d0e21e |
1303 | XPUSHs(sv); |
a0d0e21e |
1304 | if (type == OP_GLOB) { |
1305 | char *tmps; |
1306 | |
3280af22 |
1307 | if (SvCUR(sv) > 0 && SvCUR(PL_rs) > 0) { |
c07a80fd |
1308 | tmps = SvEND(sv) - 1; |
3280af22 |
1309 | if (*tmps == *SvPVX(PL_rs)) { |
c07a80fd |
1310 | *tmps = '\0'; |
1311 | SvCUR(sv)--; |
1312 | } |
1313 | } |
a0d0e21e |
1314 | for (tmps = SvPVX(sv); *tmps; tmps++) |
1315 | if (!isALPHA(*tmps) && !isDIGIT(*tmps) && |
1316 | strchr("$&*(){}[]'\";\\|?<>~`", *tmps)) |
1317 | break; |
43384a1a |
1318 | if (*tmps && PerlLIO_lstat(SvPVX(sv), &PL_statbuf) < 0) { |
a0d0e21e |
1319 | (void)POPs; /* Unmatched wildcard? Chuck it... */ |
1320 | continue; |
1321 | } |
1322 | } |
54310121 |
1323 | if (gimme == G_ARRAY) { |
a0d0e21e |
1324 | if (SvLEN(sv) - SvCUR(sv) > 20) { |
1325 | SvLEN_set(sv, SvCUR(sv)+1); |
1326 | Renew(SvPVX(sv), SvLEN(sv), char); |
1327 | } |
1328 | sv = sv_2mortal(NEWSV(58, 80)); |
1329 | continue; |
1330 | } |
54310121 |
1331 | else if (gimme == G_SCALAR && !tmplen && SvLEN(sv) - SvCUR(sv) > 80) { |
a0d0e21e |
1332 | /* try to reclaim a bit of scalar space (only on 1st alloc) */ |
1333 | if (SvCUR(sv) < 60) |
1334 | SvLEN_set(sv, 80); |
1335 | else |
1336 | SvLEN_set(sv, SvCUR(sv)+40); /* allow some slop */ |
1337 | Renew(SvPVX(sv), SvLEN(sv), char); |
1338 | } |
1339 | RETURN; |
1340 | } |
1341 | } |
1342 | |
1343 | PP(pp_enter) |
1344 | { |
4e35701f |
1345 | djSP; |
c09156bb |
1346 | register PERL_CONTEXT *cx; |
533c011a |
1347 | I32 gimme = OP_GIMME(PL_op, -1); |
a0d0e21e |
1348 | |
54310121 |
1349 | if (gimme == -1) { |
1350 | if (cxstack_ix >= 0) |
1351 | gimme = cxstack[cxstack_ix].blk_gimme; |
1352 | else |
1353 | gimme = G_SCALAR; |
1354 | } |
a0d0e21e |
1355 | |
1356 | ENTER; |
1357 | |
1358 | SAVETMPS; |
924508f0 |
1359 | PUSHBLOCK(cx, CXt_BLOCK, SP); |
a0d0e21e |
1360 | |
1361 | RETURN; |
1362 | } |
1363 | |
1364 | PP(pp_helem) |
1365 | { |
4e35701f |
1366 | djSP; |
760ac839 |
1367 | HE* he; |
ae77835f |
1368 | SV **svp; |
a0d0e21e |
1369 | SV *keysv = POPs; |
a0d0e21e |
1370 | HV *hv = (HV*)POPs; |
533c011a |
1371 | U32 lval = PL_op->op_flags & OPf_MOD; |
1372 | U32 defer = PL_op->op_private & OPpLVAL_DEFER; |
be6c24e0 |
1373 | SV *sv; |
a0d0e21e |
1374 | |
ae77835f |
1375 | if (SvTYPE(hv) == SVt_PVHV) { |
1376 | he = hv_fetch_ent(hv, keysv, lval && !defer, 0); |
97fcbf96 |
1377 | svp = he ? &HeVAL(he) : 0; |
ae77835f |
1378 | } |
1379 | else if (SvTYPE(hv) == SVt_PVAV) { |
0ebe0038 |
1380 | if (PL_op->op_private & OPpLVAL_INTRO) |
cea2e8a9 |
1381 | DIE(aTHX_ "Can't localize pseudo-hash element"); |
97fcbf96 |
1382 | svp = avhv_fetch_ent((AV*)hv, keysv, lval && !defer, 0); |
ae77835f |
1383 | } |
c750a3ec |
1384 | else { |
a0d0e21e |
1385 | RETPUSHUNDEF; |
c750a3ec |
1386 | } |
a0d0e21e |
1387 | if (lval) { |
3280af22 |
1388 | if (!svp || *svp == &PL_sv_undef) { |
68dc0745 |
1389 | SV* lv; |
1390 | SV* key2; |
2d8e6c8d |
1391 | if (!defer) { |
1392 | STRLEN n_a; |
cea2e8a9 |
1393 | DIE(aTHX_ PL_no_helem, SvPV(keysv, n_a)); |
2d8e6c8d |
1394 | } |
68dc0745 |
1395 | lv = sv_newmortal(); |
1396 | sv_upgrade(lv, SVt_PVLV); |
1397 | LvTYPE(lv) = 'y'; |
1398 | sv_magic(lv, key2 = newSVsv(keysv), 'y', Nullch, 0); |
1399 | SvREFCNT_dec(key2); /* sv_magic() increments refcount */ |
1400 | LvTARG(lv) = SvREFCNT_inc(hv); |
1401 | LvTARGLEN(lv) = 1; |
1402 | PUSHs(lv); |
1403 | RETURN; |
1404 | } |
533c011a |
1405 | if (PL_op->op_private & OPpLVAL_INTRO) { |
ae77835f |
1406 | if (HvNAME(hv) && isGV(*svp)) |
533c011a |
1407 | save_gp((GV*)*svp, !(PL_op->op_flags & OPf_SPECIAL)); |
5f05dabc |
1408 | else |
161b7d16 |
1409 | save_helem(hv, keysv, svp); |
5f05dabc |
1410 | } |
533c011a |
1411 | else if (PL_op->op_private & OPpDEREF) |
1412 | vivify_ref(*svp, PL_op->op_private & OPpDEREF); |
a0d0e21e |
1413 | } |
3280af22 |
1414 | sv = (svp ? *svp : &PL_sv_undef); |
be6c24e0 |
1415 | /* This makes C<local $tied{foo} = $tied{foo}> possible. |
1416 | * Pushing the magical RHS on to the stack is useless, since |
1417 | * that magic is soon destined to be misled by the local(), |
1418 | * and thus the later pp_sassign() will fail to mg_get() the |
1419 | * old value. This should also cure problems with delayed |
1420 | * mg_get()s. GSAR 98-07-03 */ |
1421 | if (!lval && SvGMAGICAL(sv)) |
1422 | sv = sv_mortalcopy(sv); |
1423 | PUSHs(sv); |
a0d0e21e |
1424 | RETURN; |
1425 | } |
1426 | |
1427 | PP(pp_leave) |
1428 | { |
4e35701f |
1429 | djSP; |
c09156bb |
1430 | register PERL_CONTEXT *cx; |
a0d0e21e |
1431 | register SV **mark; |
1432 | SV **newsp; |
1433 | PMOP *newpm; |
1434 | I32 gimme; |
1435 | |
533c011a |
1436 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e |
1437 | cx = &cxstack[cxstack_ix]; |
3280af22 |
1438 | cx->blk_oldpm = PL_curpm; /* fake block should preserve $1 et al */ |
a0d0e21e |
1439 | } |
1440 | |
1441 | POPBLOCK(cx,newpm); |
1442 | |
533c011a |
1443 | gimme = OP_GIMME(PL_op, -1); |
54310121 |
1444 | if (gimme == -1) { |
1445 | if (cxstack_ix >= 0) |
1446 | gimme = cxstack[cxstack_ix].blk_gimme; |
1447 | else |
1448 | gimme = G_SCALAR; |
1449 | } |
a0d0e21e |
1450 | |
a1f49e72 |
1451 | TAINT_NOT; |
54310121 |
1452 | if (gimme == G_VOID) |
1453 | SP = newsp; |
1454 | else if (gimme == G_SCALAR) { |
1455 | MARK = newsp + 1; |
1456 | if (MARK <= SP) |
1457 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) |
1458 | *MARK = TOPs; |
1459 | else |
1460 | *MARK = sv_mortalcopy(TOPs); |
a0d0e21e |
1461 | else { |
54310121 |
1462 | MEXTEND(mark,0); |
3280af22 |
1463 | *MARK = &PL_sv_undef; |
a0d0e21e |
1464 | } |
54310121 |
1465 | SP = MARK; |
a0d0e21e |
1466 | } |
54310121 |
1467 | else if (gimme == G_ARRAY) { |
a1f49e72 |
1468 | /* in case LEAVE wipes old return values */ |
1469 | for (mark = newsp + 1; mark <= SP; mark++) { |
1470 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) { |
a0d0e21e |
1471 | *mark = sv_mortalcopy(*mark); |
a1f49e72 |
1472 | TAINT_NOT; /* Each item is independent */ |
1473 | } |
1474 | } |
a0d0e21e |
1475 | } |
3280af22 |
1476 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e |
1477 | |
1478 | LEAVE; |
1479 | |
1480 | RETURN; |
1481 | } |
1482 | |
1483 | PP(pp_iter) |
1484 | { |
4e35701f |
1485 | djSP; |
c09156bb |
1486 | register PERL_CONTEXT *cx; |
5f05dabc |
1487 | SV* sv; |
4633a7c4 |
1488 | AV* av; |
a0d0e21e |
1489 | |
924508f0 |
1490 | EXTEND(SP, 1); |
a0d0e21e |
1491 | cx = &cxstack[cxstack_ix]; |
6b35e009 |
1492 | if (CxTYPE(cx) != CXt_LOOP) |
cea2e8a9 |
1493 | DIE(aTHX_ "panic: pp_iter"); |
a0d0e21e |
1494 | |
4633a7c4 |
1495 | av = cx->blk_loop.iterary; |
89ea2908 |
1496 | if (SvTYPE(av) != SVt_PVAV) { |
1497 | /* iterate ($min .. $max) */ |
1498 | if (cx->blk_loop.iterlval) { |
1499 | /* string increment */ |
1500 | register SV* cur = cx->blk_loop.iterlval; |
1501 | STRLEN maxlen; |
1502 | char *max = SvPV((SV*)av, maxlen); |
1503 | if (!SvNIOK(cur) && SvCUR(cur) <= maxlen) { |
eaa5c2d6 |
1504 | #ifndef USE_THREADS /* don't risk potential race */ |
39ca2bb7 |
1505 | if (SvREFCNT(*cx->blk_loop.itervar) == 1 |
1506 | && !SvMAGICAL(*cx->blk_loop.itervar)) |
1507 | { |
eaa5c2d6 |
1508 | /* safe to reuse old SV */ |
1509 | sv_setsv(*cx->blk_loop.itervar, cur); |
1510 | } |
1511 | else |
1512 | #endif |
1513 | { |
1514 | /* we need a fresh SV every time so that loop body sees a |
1515 | * completely new SV for closures/references to work as |
1516 | * they used to */ |
1517 | SvREFCNT_dec(*cx->blk_loop.itervar); |
1518 | *cx->blk_loop.itervar = newSVsv(cur); |
1519 | } |
89ea2908 |
1520 | if (strEQ(SvPVX(cur), max)) |
1521 | sv_setiv(cur, 0); /* terminate next time */ |
1522 | else |
1523 | sv_inc(cur); |
1524 | RETPUSHYES; |
1525 | } |
1526 | RETPUSHNO; |
1527 | } |
1528 | /* integer increment */ |
1529 | if (cx->blk_loop.iterix > cx->blk_loop.itermax) |
1530 | RETPUSHNO; |
7f61b687 |
1531 | |
eaa5c2d6 |
1532 | #ifndef USE_THREADS /* don't risk potential race */ |
39ca2bb7 |
1533 | if (SvREFCNT(*cx->blk_loop.itervar) == 1 |
1534 | && !SvMAGICAL(*cx->blk_loop.itervar)) |
1535 | { |
eaa5c2d6 |
1536 | /* safe to reuse old SV */ |
1537 | sv_setiv(*cx->blk_loop.itervar, cx->blk_loop.iterix++); |
1538 | } |
1539 | else |
1540 | #endif |
1541 | { |
1542 | /* we need a fresh SV every time so that loop body sees a |
1543 | * completely new SV for closures/references to work as they |
1544 | * used to */ |
1545 | SvREFCNT_dec(*cx->blk_loop.itervar); |
1546 | *cx->blk_loop.itervar = newSViv(cx->blk_loop.iterix++); |
1547 | } |
89ea2908 |
1548 | RETPUSHYES; |
1549 | } |
1550 | |
1551 | /* iterate array */ |
3280af22 |
1552 | if (cx->blk_loop.iterix >= (av == PL_curstack ? cx->blk_oldsp : AvFILL(av))) |
4633a7c4 |
1553 | RETPUSHNO; |
a0d0e21e |
1554 | |
7a4c00b4 |
1555 | SvREFCNT_dec(*cx->blk_loop.itervar); |
a0d0e21e |
1556 | |
93965878 |
1557 | if (sv = (SvMAGICAL(av)) |
1558 | ? *av_fetch(av, ++cx->blk_loop.iterix, FALSE) |
1559 | : AvARRAY(av)[++cx->blk_loop.iterix]) |
a0d0e21e |
1560 | SvTEMP_off(sv); |
a0d0e21e |
1561 | else |
3280af22 |
1562 | sv = &PL_sv_undef; |
1563 | if (av != PL_curstack && SvIMMORTAL(sv)) { |
5f05dabc |
1564 | SV *lv = cx->blk_loop.iterlval; |
71be2cbc |
1565 | if (lv && SvREFCNT(lv) > 1) { |
1566 | SvREFCNT_dec(lv); |
1567 | lv = Nullsv; |
1568 | } |
5f05dabc |
1569 | if (lv) |
1570 | SvREFCNT_dec(LvTARG(lv)); |
1571 | else { |
68dc0745 |
1572 | lv = cx->blk_loop.iterlval = NEWSV(26, 0); |
5f05dabc |
1573 | sv_upgrade(lv, SVt_PVLV); |
5f05dabc |
1574 | LvTYPE(lv) = 'y'; |
68dc0745 |
1575 | sv_magic(lv, Nullsv, 'y', Nullch, 0); |
5f05dabc |
1576 | } |
1577 | LvTARG(lv) = SvREFCNT_inc(av); |
1578 | LvTARGOFF(lv) = cx->blk_loop.iterix; |
8ac85365 |
1579 | LvTARGLEN(lv) = (UV) -1; |
5f05dabc |
1580 | sv = (SV*)lv; |
1581 | } |
a0d0e21e |
1582 | |
7a4c00b4 |
1583 | *cx->blk_loop.itervar = SvREFCNT_inc(sv); |
a0d0e21e |
1584 | RETPUSHYES; |
1585 | } |
1586 | |
1587 | PP(pp_subst) |
1588 | { |
4e35701f |
1589 | djSP; dTARG; |
a0d0e21e |
1590 | register PMOP *pm = cPMOP; |
1591 | PMOP *rpm = pm; |
1592 | register SV *dstr; |
1593 | register char *s; |
1594 | char *strend; |
1595 | register char *m; |
1596 | char *c; |
1597 | register char *d; |
1598 | STRLEN clen; |
1599 | I32 iters = 0; |
1600 | I32 maxiters; |
1601 | register I32 i; |
1602 | bool once; |
71be2cbc |
1603 | bool rxtainted; |
a0d0e21e |
1604 | char *orig; |
22e551b9 |
1605 | I32 r_flags; |
d9f97599 |
1606 | register REGEXP *rx = pm->op_pmregexp; |
a0d0e21e |
1607 | STRLEN len; |
1608 | int force_on_match = 0; |
3280af22 |
1609 | I32 oldsave = PL_savestack_ix; |
c277df42 |
1610 | I32 update_minmatch = 1; |
a0d0e21e |
1611 | |
5cd24f17 |
1612 | /* known replacement string? */ |
1613 | dstr = (pm->op_pmflags & PMf_CONST) ? POPs : Nullsv; |
533c011a |
1614 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e |
1615 | TARG = POPs; |
1616 | else { |
54b9620d |
1617 | TARG = DEFSV; |
a0d0e21e |
1618 | EXTEND(SP,1); |
8ec5e241 |
1619 | } |
68dc0745 |
1620 | if (SvREADONLY(TARG) |
1621 | || (SvTYPE(TARG) > SVt_PVLV |
1622 | && !(SvTYPE(TARG) == SVt_PVGV && SvFAKE(TARG)))) |
cea2e8a9 |
1623 | Perl_croak(aTHX_ PL_no_modify); |
8ec5e241 |
1624 | PUTBACK; |
1625 | |
a0d0e21e |
1626 | s = SvPV(TARG, len); |
68dc0745 |
1627 | if (!SvPOKp(TARG) || SvTYPE(TARG) == SVt_PVGV) |
a0d0e21e |
1628 | force_on_match = 1; |
b3eb6a9b |
1629 | rxtainted = ((pm->op_pmdynflags & PMdf_TAINTED) || |
3280af22 |
1630 | (PL_tainted && (pm->op_pmflags & PMf_RETAINT))); |
1631 | if (PL_tainted) |
b3eb6a9b |
1632 | rxtainted |= 2; |
9212bbba |
1633 | TAINT_NOT; |
a0d0e21e |
1634 | |
1635 | force_it: |
1636 | if (!pm || !s) |
cea2e8a9 |
1637 | DIE(aTHX_ "panic: do_subst"); |
a0d0e21e |
1638 | |
1639 | strend = s + len; |
2beec16e |
1640 | maxiters = 2*(strend - s) + 10; /* We can match twice at each |
1641 | position, once with zero-length, |
1642 | second time with non-zero. */ |
a0d0e21e |
1643 | |
3280af22 |
1644 | if (!rx->prelen && PL_curpm) { |
1645 | pm = PL_curpm; |
d9f97599 |
1646 | rx = pm->op_pmregexp; |
a0d0e21e |
1647 | } |
22e551b9 |
1648 | r_flags = (rx->nparens || SvTEMP(TARG) || PL_sawampersand) |
9d080a66 |
1649 | ? REXEC_COPY_STR : 0; |
f722798b |
1650 | if (SvSCREAM(TARG)) |
22e551b9 |
1651 | r_flags |= REXEC_SCREAM; |
a0d0e21e |
1652 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
3280af22 |
1653 | SAVEINT(PL_multiline); |
1654 | PL_multiline = pm->op_pmflags & PMf_MULTILINE; |
a0d0e21e |
1655 | } |
1656 | orig = m = s; |
f722798b |
1657 | if (rx->reganch & RE_USE_INTUIT) { |
1658 | s = CALLREG_INTUIT_START(aTHX_ rx, TARG, s, strend, r_flags, NULL); |
1659 | |
1660 | if (!s) |
1661 | goto nope; |
1662 | /* How to do it in subst? */ |
1663 | /* if ( (rx->reganch & ROPT_CHECK_ALL) |
1664 | && !PL_sawampersand |
1665 | && ((rx->reganch & ROPT_NOSCAN) |
1666 | || !((rx->reganch & RE_INTUIT_TAIL) |
1667 | && (r_flags & REXEC_SCREAM)))) |
1668 | goto yup; |
1669 | */ |
a0d0e21e |
1670 | } |
71be2cbc |
1671 | |
1672 | /* only replace once? */ |
a0d0e21e |
1673 | once = !(rpm->op_pmflags & PMf_GLOBAL); |
71be2cbc |
1674 | |
1675 | /* known replacement string? */ |
5cd24f17 |
1676 | c = dstr ? SvPV(dstr, clen) : Nullch; |
71be2cbc |
1677 | |
1678 | /* can do inplace substitution? */ |
22e551b9 |
1679 | if (c && clen <= rx->minlen && (once || !(r_flags & REXEC_COPY_STR)) |
d9f97599 |
1680 | && !(rx->reganch & ROPT_LOOKBEHIND_SEEN)) { |
f722798b |
1681 | if (!CALLREGEXEC(aTHX_ rx, s, strend, orig, 0, TARG, NULL, |
1682 | r_flags | REXEC_CHECKED)) |
1683 | { |
8ec5e241 |
1684 | SPAGAIN; |
3280af22 |
1685 | PUSHs(&PL_sv_no); |
71be2cbc |
1686 | LEAVE_SCOPE(oldsave); |
1687 | RETURN; |
1688 | } |
1689 | if (force_on_match) { |
1690 | force_on_match = 0; |
1691 | s = SvPV_force(TARG, len); |
1692 | goto force_it; |
1693 | } |
71be2cbc |
1694 | d = s; |
3280af22 |
1695 | PL_curpm = pm; |
71be2cbc |
1696 | SvSCREAM_off(TARG); /* disable possible screamer */ |
1697 | if (once) { |
48c036b1 |
1698 | rxtainted |= RX_MATCH_TAINTED(rx); |
cf93c79d |
1699 | m = orig + rx->startp[0]; |
1700 | d = orig + rx->endp[0]; |
71be2cbc |
1701 | s = orig; |
1702 | if (m - s > strend - d) { /* faster to shorten from end */ |
1703 | if (clen) { |
1704 | Copy(c, m, clen, char); |
1705 | m += clen; |
a0d0e21e |
1706 | } |
71be2cbc |
1707 | i = strend - d; |
1708 | if (i > 0) { |
1709 | Move(d, m, i, char); |
1710 | m += i; |
a0d0e21e |
1711 | } |
71be2cbc |
1712 | *m = '\0'; |
1713 | SvCUR_set(TARG, m - s); |
1714 | } |
1715 | /*SUPPRESS 560*/ |
1716 | else if (i = m - s) { /* faster from front */ |
1717 | d -= clen; |
1718 | m = d; |
1719 | sv_chop(TARG, d-i); |
1720 | s += i; |
1721 | while (i--) |
1722 | *--d = *--s; |
1723 | if (clen) |
1724 | Copy(c, m, clen, char); |
1725 | } |
1726 | else if (clen) { |
1727 | d -= clen; |
1728 | sv_chop(TARG, d); |
1729 | Copy(c, d, clen, char); |
1730 | } |
1731 | else { |
1732 | sv_chop(TARG, d); |
1733 | } |
48c036b1 |
1734 | TAINT_IF(rxtainted & 1); |
8ec5e241 |
1735 | SPAGAIN; |
3280af22 |
1736 | PUSHs(&PL_sv_yes); |
71be2cbc |
1737 | } |
1738 | else { |
71be2cbc |
1739 | do { |
1740 | if (iters++ > maxiters) |
cea2e8a9 |
1741 | DIE(aTHX_ "Substitution loop"); |
d9f97599 |
1742 | rxtainted |= RX_MATCH_TAINTED(rx); |
cf93c79d |
1743 | m = rx->startp[0] + orig; |
71be2cbc |
1744 | /*SUPPRESS 560*/ |
1745 | if (i = m - s) { |
1746 | if (s != d) |
1747 | Move(s, d, i, char); |
1748 | d += i; |
a0d0e21e |
1749 | } |
71be2cbc |
1750 | if (clen) { |
1751 | Copy(c, d, clen, char); |
1752 | d += clen; |
1753 | } |
cf93c79d |
1754 | s = rx->endp[0] + orig; |
cea2e8a9 |
1755 | } while (CALLREGEXEC(aTHX_ rx, s, strend, orig, s == m, |
f722798b |
1756 | TARG, NULL, |
1757 | /* don't match same null twice */ |
1758 | REXEC_NOT_FIRST|REXEC_IGNOREPOS)); |
71be2cbc |
1759 | if (s != d) { |
1760 | i = strend - s; |
1761 | SvCUR_set(TARG, d - SvPVX(TARG) + i); |
1762 | Move(s, d, i+1, char); /* include the NUL */ |
a0d0e21e |
1763 | } |
48c036b1 |
1764 | TAINT_IF(rxtainted & 1); |
8ec5e241 |
1765 | SPAGAIN; |
71be2cbc |
1766 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
a0d0e21e |
1767 | } |
71be2cbc |
1768 | (void)SvPOK_only(TARG); |
48c036b1 |
1769 | TAINT_IF(rxtainted); |
8ec5e241 |
1770 | if (SvSMAGICAL(TARG)) { |
1771 | PUTBACK; |
1772 | mg_set(TARG); |
1773 | SPAGAIN; |
1774 | } |
9212bbba |
1775 | SvTAINT(TARG); |
71be2cbc |
1776 | LEAVE_SCOPE(oldsave); |
1777 | RETURN; |
a0d0e21e |
1778 | } |
71be2cbc |
1779 | |
f722798b |
1780 | if (CALLREGEXEC(aTHX_ rx, s, strend, orig, 0, TARG, NULL, |
1781 | r_flags | REXEC_CHECKED)) |
1782 | { |
a0d0e21e |
1783 | if (force_on_match) { |
1784 | force_on_match = 0; |
1785 | s = SvPV_force(TARG, len); |
1786 | goto force_it; |
1787 | } |
48c036b1 |
1788 | rxtainted |= RX_MATCH_TAINTED(rx); |
8ec5e241 |
1789 | dstr = NEWSV(25, len); |
a0d0e21e |
1790 | sv_setpvn(dstr, m, s-m); |
3280af22 |
1791 | PL_curpm = pm; |
a0d0e21e |
1792 | if (!c) { |
c09156bb |
1793 | register PERL_CONTEXT *cx; |
8ec5e241 |
1794 | SPAGAIN; |
a0d0e21e |
1795 | PUSHSUBST(cx); |
1796 | RETURNOP(cPMOP->op_pmreplroot); |
1797 | } |
cf93c79d |
1798 | r_flags |= REXEC_IGNOREPOS | REXEC_NOT_FIRST; |
a0d0e21e |
1799 | do { |
1800 | if (iters++ > maxiters) |
cea2e8a9 |
1801 | DIE(aTHX_ "Substitution loop"); |
d9f97599 |
1802 | rxtainted |= RX_MATCH_TAINTED(rx); |
cf93c79d |
1803 | if (RX_MATCH_COPIED(rx) && rx->subbeg != orig) { |
a0d0e21e |
1804 | m = s; |
1805 | s = orig; |
cf93c79d |
1806 | orig = rx->subbeg; |
a0d0e21e |
1807 | s = orig + (m - s); |
1808 | strend = s + (strend - m); |
1809 | } |
cf93c79d |
1810 | m = rx->startp[0] + orig; |
a0d0e21e |
1811 | sv_catpvn(dstr, s, m-s); |
cf93c79d |
1812 | s = rx->endp[0] + orig; |
a0d0e21e |
1813 | if (clen) |
1814 | sv_catpvn(dstr, c, clen); |
1815 | if (once) |
1816 | break; |
cea2e8a9 |
1817 | } while (CALLREGEXEC(aTHX_ rx, s, strend, orig, s == m, TARG, NULL, r_flags)); |
a0d0e21e |
1818 | sv_catpvn(dstr, s, strend - s); |
748a9306 |
1819 | |
4633a7c4 |
1820 | (void)SvOOK_off(TARG); |
cb0b1708 |
1821 | Safefree(SvPVX(TARG)); |
748a9306 |
1822 | SvPVX(TARG) = SvPVX(dstr); |
1823 | SvCUR_set(TARG, SvCUR(dstr)); |
1824 | SvLEN_set(TARG, SvLEN(dstr)); |
1825 | SvPVX(dstr) = 0; |
1826 | sv_free(dstr); |
1827 | |
48c036b1 |
1828 | TAINT_IF(rxtainted & 1); |
f878fbec |
1829 | SPAGAIN; |
48c036b1 |
1830 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
1831 | |
a0d0e21e |
1832 | (void)SvPOK_only(TARG); |
48c036b1 |
1833 | TAINT_IF(rxtainted); |
a0d0e21e |
1834 | SvSETMAGIC(TARG); |
9212bbba |
1835 | SvTAINT(TARG); |
4633a7c4 |
1836 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1837 | RETURN; |
1838 | } |
5cd24f17 |
1839 | goto ret_no; |
a0d0e21e |
1840 | |
1841 | nope: |
8ec5e241 |
1842 | ret_no: |
1843 | SPAGAIN; |
3280af22 |
1844 | PUSHs(&PL_sv_no); |
4633a7c4 |
1845 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1846 | RETURN; |
1847 | } |
1848 | |
1849 | PP(pp_grepwhile) |
1850 | { |
4e35701f |
1851 | djSP; |
a0d0e21e |
1852 | |
1853 | if (SvTRUEx(POPs)) |
3280af22 |
1854 | PL_stack_base[PL_markstack_ptr[-1]++] = PL_stack_base[*PL_markstack_ptr]; |
1855 | ++*PL_markstack_ptr; |
a0d0e21e |
1856 | LEAVE; /* exit inner scope */ |
1857 | |
1858 | /* All done yet? */ |
3280af22 |
1859 | if (PL_stack_base + *PL_markstack_ptr > SP) { |
a0d0e21e |
1860 | I32 items; |
54310121 |
1861 | I32 gimme = GIMME_V; |
a0d0e21e |
1862 | |
1863 | LEAVE; /* exit outer scope */ |
1864 | (void)POPMARK; /* pop src */ |
3280af22 |
1865 | items = --*PL_markstack_ptr - PL_markstack_ptr[-1]; |
a0d0e21e |
1866 | (void)POPMARK; /* pop dst */ |
3280af22 |
1867 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
54310121 |
1868 | if (gimme == G_SCALAR) { |
a0d0e21e |
1869 | dTARGET; |
1870 | XPUSHi(items); |
a0d0e21e |
1871 | } |
54310121 |
1872 | else if (gimme == G_ARRAY) |
1873 | SP += items; |
a0d0e21e |
1874 | RETURN; |
1875 | } |
1876 | else { |
1877 | SV *src; |
1878 | |
1879 | ENTER; /* enter inner scope */ |
3280af22 |
1880 | SAVESPTR(PL_curpm); |
a0d0e21e |
1881 | |
3280af22 |
1882 | src = PL_stack_base[*PL_markstack_ptr]; |
a0d0e21e |
1883 | SvTEMP_off(src); |
54b9620d |
1884 | DEFSV = src; |
a0d0e21e |
1885 | |
1886 | RETURNOP(cLOGOP->op_other); |
1887 | } |
1888 | } |
1889 | |
1890 | PP(pp_leavesub) |
1891 | { |
4e35701f |
1892 | djSP; |
a0d0e21e |
1893 | SV **mark; |
1894 | SV **newsp; |
1895 | PMOP *newpm; |
1896 | I32 gimme; |
c09156bb |
1897 | register PERL_CONTEXT *cx; |
f86702cc |
1898 | struct block_sub cxsub; |
a0d0e21e |
1899 | |
1900 | POPBLOCK(cx,newpm); |
f86702cc |
1901 | POPSUB1(cx); /* Delay POPSUB2 until stack values are safe */ |
1902 | |
a1f49e72 |
1903 | TAINT_NOT; |
a0d0e21e |
1904 | if (gimme == G_SCALAR) { |
1905 | MARK = newsp + 1; |
a29cdaf0 |
1906 | if (MARK <= SP) { |
1907 | if (cxsub.cv && CvDEPTH(cxsub.cv) > 1) { |
1908 | if (SvTEMP(TOPs)) { |
1909 | *MARK = SvREFCNT_inc(TOPs); |
1910 | FREETMPS; |
1911 | sv_2mortal(*MARK); |
1912 | } else { |
1913 | FREETMPS; |
1914 | *MARK = sv_mortalcopy(TOPs); |
1915 | } |
1916 | } else |
1917 | *MARK = SvTEMP(TOPs) ? TOPs : sv_mortalcopy(TOPs); |
1918 | } else { |
f86702cc |
1919 | MEXTEND(MARK, 0); |
3280af22 |
1920 | *MARK = &PL_sv_undef; |
a0d0e21e |
1921 | } |
1922 | SP = MARK; |
1923 | } |
54310121 |
1924 | else if (gimme == G_ARRAY) { |
f86702cc |
1925 | for (MARK = newsp + 1; MARK <= SP; MARK++) { |
a1f49e72 |
1926 | if (!SvTEMP(*MARK)) { |
f86702cc |
1927 | *MARK = sv_mortalcopy(*MARK); |
a1f49e72 |
1928 | TAINT_NOT; /* Each item is independent */ |
1929 | } |
f86702cc |
1930 | } |
a0d0e21e |
1931 | } |
f86702cc |
1932 | PUTBACK; |
1933 | |
1934 | POPSUB2(); /* Stack values are safe: release CV and @_ ... */ |
3280af22 |
1935 | PL_curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e |
1936 | |
1937 | LEAVE; |
a0d0e21e |
1938 | return pop_return(); |
1939 | } |
1940 | |
76e3520e |
1941 | STATIC CV * |
cea2e8a9 |
1942 | S_get_db_sub(pTHX_ SV **svp, CV *cv) |
3de9ffa1 |
1943 | { |
1944 | dTHR; |
3280af22 |
1945 | SV *dbsv = GvSV(PL_DBsub); |
491527d0 |
1946 | |
1947 | if (!PERLDB_SUB_NN) { |
1948 | GV *gv = CvGV(cv); |
1949 | |
1950 | save_item(dbsv); |
1951 | if ( (CvFLAGS(cv) & (CVf_ANON | CVf_CLONED)) |
1952 | || strEQ(GvNAME(gv), "END") |
1953 | || ((GvCV(gv) != cv) && /* Could be imported, and old sub redefined. */ |
1954 | !( (SvTYPE(*svp) == SVt_PVGV) && (GvCV((GV*)*svp) == cv) |
1955 | && (gv = (GV*)*svp) ))) { |
1956 | /* Use GV from the stack as a fallback. */ |
1957 | /* GV is potentially non-unique, or contain different CV. */ |
1958 | sv_setsv(dbsv, newRV((SV*)cv)); |
1959 | } |
1960 | else { |
1961 | gv_efullname3(dbsv, gv, Nullch); |
1962 | } |
3de9ffa1 |
1963 | } |
1964 | else { |
491527d0 |
1965 | SvUPGRADE(dbsv, SVt_PVIV); |
1966 | SvIOK_on(dbsv); |
1967 | SAVEIV(SvIVX(dbsv)); |
1968 | SvIVX(dbsv) = (IV)cv; /* Do it the quickest way */ |
3de9ffa1 |
1969 | } |
491527d0 |
1970 | |
3de9ffa1 |
1971 | if (CvXSUB(cv)) |
3280af22 |
1972 | PL_curcopdb = PL_curcop; |
1973 | cv = GvCV(PL_DBsub); |
3de9ffa1 |
1974 | return cv; |
1975 | } |
1976 | |
a0d0e21e |
1977 | PP(pp_entersub) |
1978 | { |
4e35701f |
1979 | djSP; dPOPss; |
a0d0e21e |
1980 | GV *gv; |
1981 | HV *stash; |
1982 | register CV *cv; |
c09156bb |
1983 | register PERL_CONTEXT *cx; |
5d94fbed |
1984 | I32 gimme; |
533c011a |
1985 | bool hasargs = (PL_op->op_flags & OPf_STACKED) != 0; |
a0d0e21e |
1986 | |
1987 | if (!sv) |
cea2e8a9 |
1988 | DIE(aTHX_ "Not a CODE reference"); |
a0d0e21e |
1989 | switch (SvTYPE(sv)) { |
1990 | default: |
1991 | if (!SvROK(sv)) { |
748a9306 |
1992 | char *sym; |
2d8e6c8d |
1993 | STRLEN n_a; |
748a9306 |
1994 | |
3280af22 |
1995 | if (sv == &PL_sv_yes) { /* unfound import, ignore */ |
fb73857a |
1996 | if (hasargs) |
3280af22 |
1997 | SP = PL_stack_base + POPMARK; |
a0d0e21e |
1998 | RETURN; |
fb73857a |
1999 | } |
15ff848f |
2000 | if (SvGMAGICAL(sv)) { |
2001 | mg_get(sv); |
2002 | sym = SvPOKp(sv) ? SvPVX(sv) : Nullch; |
2003 | } |
2004 | else |
2d8e6c8d |
2005 | sym = SvPV(sv, n_a); |
15ff848f |
2006 | if (!sym) |
cea2e8a9 |
2007 | DIE(aTHX_ PL_no_usym, "a subroutine"); |
533c011a |
2008 | if (PL_op->op_private & HINT_STRICT_REFS) |
cea2e8a9 |
2009 | DIE(aTHX_ PL_no_symref, sym, "a subroutine"); |
864dbfa3 |
2010 | cv = get_cv(sym, TRUE); |
a0d0e21e |
2011 | break; |
2012 | } |
f5284f61 |
2013 | { |
2014 | SV **sp = &sv; /* Used in tryAMAGICunDEREF macro. */ |
2015 | tryAMAGICunDEREF(to_cv); |
2016 | } |
a0d0e21e |
2017 | cv = (CV*)SvRV(sv); |
2018 | if (SvTYPE(cv) == SVt_PVCV) |
2019 | break; |
2020 | /* FALL THROUGH */ |
2021 | case SVt_PVHV: |
2022 | case SVt_PVAV: |
cea2e8a9 |
2023 | DIE(aTHX_ "Not a CODE reference"); |
a0d0e21e |
2024 | case SVt_PVCV: |
2025 | cv = (CV*)sv; |
2026 | break; |
2027 | case SVt_PVGV: |
8ebc5c01 |
2028 | if (!(cv = GvCVu((GV*)sv))) |
f6ec51f7 |
2029 | cv = sv_2cv(sv, &stash, &gv, FALSE); |
2030 | if (!cv) { |
2031 | ENTER; |
2032 | SAVETMPS; |
2033 | goto try_autoload; |
2034 | } |
2035 | break; |
a0d0e21e |
2036 | } |
2037 | |
2038 | ENTER; |
2039 | SAVETMPS; |
2040 | |
2041 | retry: |
a0d0e21e |
2042 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
44a8e56a |
2043 | GV* autogv; |
22239a37 |
2044 | SV* sub_name; |
44a8e56a |
2045 | |
2046 | /* anonymous or undef'd function leaves us no recourse */ |
2047 | if (CvANON(cv) || !(gv = CvGV(cv))) |
cea2e8a9 |
2048 | DIE(aTHX_ "Undefined subroutine called"); |
67caa1fe |
2049 | |
44a8e56a |
2050 | /* autoloaded stub? */ |
2051 | if (cv != GvCV(gv)) { |
2052 | cv = GvCV(gv); |
a0d0e21e |
2053 | } |
44a8e56a |
2054 | /* should call AUTOLOAD now? */ |
67caa1fe |
2055 | else { |
f6ec51f7 |
2056 | try_autoload: |
2057 | if ((autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), |
2058 | FALSE))) |
2059 | { |
2060 | cv = GvCV(autogv); |
2061 | } |
2062 | /* sorry */ |
2063 | else { |
2064 | sub_name = sv_newmortal(); |
2065 | gv_efullname3(sub_name, gv, Nullch); |
cea2e8a9 |
2066 | DIE(aTHX_ "Undefined subroutine &%s called", SvPVX(sub_name)); |
f6ec51f7 |
2067 | } |
67caa1fe |
2068 | } |
2069 | if (!cv) |
cea2e8a9 |
2070 | DIE(aTHX_ "Not a CODE reference"); |
67caa1fe |
2071 | goto retry; |
a0d0e21e |
2072 | } |
2073 | |
54310121 |
2074 | gimme = GIMME_V; |
67caa1fe |
2075 | if ((PL_op->op_private & OPpENTERSUB_DB) && GvCV(PL_DBsub) && !CvNODEBUG(cv)) { |
4f01c5a5 |
2076 | cv = get_db_sub(&sv, cv); |
67caa1fe |
2077 | if (!cv) |
cea2e8a9 |
2078 | DIE(aTHX_ "No DBsub routine"); |
67caa1fe |
2079 | } |
a0d0e21e |
2080 | |
11343788 |
2081 | #ifdef USE_THREADS |
3de9ffa1 |
2082 | /* |
2083 | * First we need to check if the sub or method requires locking. |
458fb581 |
2084 | * If so, we gain a lock on the CV, the first argument or the |
2085 | * stash (for static methods), as appropriate. This has to be |
2086 | * inline because for FAKE_THREADS, COND_WAIT inlines code to |
2087 | * reschedule by returning a new op. |
3de9ffa1 |
2088 | */ |
11343788 |
2089 | MUTEX_LOCK(CvMUTEXP(cv)); |
77a005ab |
2090 | if (CvFLAGS(cv) & CVf_LOCKED) { |
2091 | MAGIC *mg; |
2092 | if (CvFLAGS(cv) & CVf_METHOD) { |
533c011a |
2093 | if (SP > PL_stack_base + TOPMARK) |
2094 | sv = *(PL_stack_base + TOPMARK + 1); |
77a005ab |
2095 | else { |
13e08037 |
2096 | AV *av = (AV*)PL_curpad[0]; |
2097 | if (hasargs || !av || AvFILLp(av) < 0 |
2098 | || !(sv = AvARRAY(av)[0])) |
2099 | { |
2100 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
cea2e8a9 |
2101 | Perl_croak(aTHX_ "no argument for locked method call"); |
13e08037 |
2102 | } |
77a005ab |
2103 | } |
2104 | if (SvROK(sv)) |
2105 | sv = SvRV(sv); |
458fb581 |
2106 | else { |
2107 | STRLEN len; |
2108 | char *stashname = SvPV(sv, len); |
2109 | sv = (SV*)gv_stashpvn(stashname, len, TRUE); |
2110 | } |
77a005ab |
2111 | } |
2112 | else { |
2113 | sv = (SV*)cv; |
2114 | } |
2115 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
2116 | mg = condpair_magic(sv); |
2117 | MUTEX_LOCK(MgMUTEXP(mg)); |
2118 | if (MgOWNER(mg) == thr) |
2119 | MUTEX_UNLOCK(MgMUTEXP(mg)); |
2120 | else { |
2121 | while (MgOWNER(mg)) |
2122 | COND_WAIT(MgOWNERCONDP(mg), MgMUTEXP(mg)); |
2123 | MgOWNER(mg) = thr; |
8b73bbec |
2124 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), "%p: pp_entersub lock %p\n", |
1fd28e87 |
2125 | thr, sv);) |
77a005ab |
2126 | MUTEX_UNLOCK(MgMUTEXP(mg)); |
51371543 |
2127 | SAVEDESTRUCTOR(Perl_unlock_condpair, sv); |
11343788 |
2128 | } |
77a005ab |
2129 | MUTEX_LOCK(CvMUTEXP(cv)); |
11343788 |
2130 | } |
3de9ffa1 |
2131 | /* |
2132 | * Now we have permission to enter the sub, we must distinguish |
2133 | * four cases. (0) It's an XSUB (in which case we don't care |
2134 | * about ownership); (1) it's ours already (and we're recursing); |
2135 | * (2) it's free (but we may already be using a cached clone); |
2136 | * (3) another thread owns it. Case (1) is easy: we just use it. |
2137 | * Case (2) means we look for a clone--if we have one, use it |
2138 | * otherwise grab ownership of cv. Case (3) means we look for a |
2139 | * clone (for non-XSUBs) and have to create one if we don't |
2140 | * already have one. |
2141 | * Why look for a clone in case (2) when we could just grab |
2142 | * ownership of cv straight away? Well, we could be recursing, |
2143 | * i.e. we originally tried to enter cv while another thread |
2144 | * owned it (hence we used a clone) but it has been freed up |
2145 | * and we're now recursing into it. It may or may not be "better" |
2146 | * to use the clone but at least CvDEPTH can be trusted. |
2147 | */ |
2148 | if (CvOWNER(cv) == thr || CvXSUB(cv)) |
2149 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
11343788 |
2150 | else { |
3de9ffa1 |
2151 | /* Case (2) or (3) */ |
2152 | SV **svp; |
2153 | |
11343788 |
2154 | /* |
3de9ffa1 |
2155 | * XXX Might it be better to release CvMUTEXP(cv) while we |
2156 | * do the hv_fetch? We might find someone has pinched it |
2157 | * when we look again, in which case we would be in case |
2158 | * (3) instead of (2) so we'd have to clone. Would the fact |
2159 | * that we released the mutex more quickly make up for this? |
2160 | */ |
b099ddc0 |
2161 | if ((svp = hv_fetch(thr->cvcache, (char *)cv, sizeof(cv), FALSE))) |
6ee623d5 |
2162 | { |
3de9ffa1 |
2163 | /* We already have a clone to use */ |
11343788 |
2164 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
3de9ffa1 |
2165 | cv = *(CV**)svp; |
8b73bbec |
2166 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
1fd28e87 |
2167 | "entersub: %p already has clone %p:%s\n", |
2168 | thr, cv, SvPEEK((SV*)cv))); |
3de9ffa1 |
2169 | CvOWNER(cv) = thr; |
2170 | SvREFCNT_inc(cv); |
2171 | if (CvDEPTH(cv) == 0) |
51371543 |
2172 | SAVEDESTRUCTOR(unset_cvowner, (void*) cv); |
3de9ffa1 |
2173 | } |
11343788 |
2174 | else { |
3de9ffa1 |
2175 | /* (2) => grab ownership of cv. (3) => make clone */ |
2176 | if (!CvOWNER(cv)) { |
2177 | CvOWNER(cv) = thr; |
2178 | SvREFCNT_inc(cv); |
11343788 |
2179 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
8b73bbec |
2180 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
1fd28e87 |
2181 | "entersub: %p grabbing %p:%s in stash %s\n", |
2182 | thr, cv, SvPEEK((SV*)cv), CvSTASH(cv) ? |
3de9ffa1 |
2183 | HvNAME(CvSTASH(cv)) : "(none)")); |
2184 | } else { |
2185 | /* Make a new clone. */ |
2186 | CV *clonecv; |
2187 | SvREFCNT_inc(cv); /* don't let it vanish from under us */ |
2188 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
8b73bbec |
2189 | DEBUG_S((PerlIO_printf(PerlIO_stderr(), |
1fd28e87 |
2190 | "entersub: %p cloning %p:%s\n", |
2191 | thr, cv, SvPEEK((SV*)cv)))); |
3de9ffa1 |
2192 | /* |
2193 | * We're creating a new clone so there's no race |
2194 | * between the original MUTEX_UNLOCK and the |
2195 | * SvREFCNT_inc since no one will be trying to undef |
2196 | * it out from underneath us. At least, I don't think |
2197 | * there's a race... |
2198 | */ |
2199 | clonecv = cv_clone(cv); |
2200 | SvREFCNT_dec(cv); /* finished with this */ |
199100c8 |
2201 | hv_store(thr->cvcache, (char*)cv, sizeof(cv), (SV*)clonecv,0); |
3de9ffa1 |
2202 | CvOWNER(clonecv) = thr; |
2203 | cv = clonecv; |
11343788 |
2204 | SvREFCNT_inc(cv); |
11343788 |
2205 | } |
8b73bbec |
2206 | DEBUG_S(if (CvDEPTH(cv) != 0) |
3de9ffa1 |
2207 | PerlIO_printf(PerlIO_stderr(), "depth %ld != 0\n", |
2208 | CvDEPTH(cv));); |
51371543 |
2209 | SAVEDESTRUCTOR(unset_cvowner, (void*) cv); |
11343788 |
2210 | } |
3de9ffa1 |
2211 | } |
11343788 |
2212 | #endif /* USE_THREADS */ |
2213 | |
a0d0e21e |
2214 | if (CvXSUB(cv)) { |
67caa1fe |
2215 | #ifdef PERL_XSUB_OLDSTYLE |
a0d0e21e |
2216 | if (CvOLDSTYLE(cv)) { |
20ce7b12 |
2217 | I32 (*fp3)(int,int,int); |
a0d0e21e |
2218 | dMARK; |
2219 | register I32 items = SP - MARK; |
67955e0c |
2220 | /* We dont worry to copy from @_. */ |
924508f0 |
2221 | while (SP > mark) { |
2222 | SP[1] = SP[0]; |
2223 | SP--; |
a0d0e21e |
2224 | } |
3280af22 |
2225 | PL_stack_sp = mark + 1; |
20ce7b12 |
2226 | fp3 = (I32(*)(int,int,int)))CvXSUB(cv; |
ecfc5424 |
2227 | items = (*fp3)(CvXSUBANY(cv).any_i32, |
3280af22 |
2228 | MARK - PL_stack_base + 1, |
ecfc5424 |
2229 | items); |
3280af22 |
2230 | PL_stack_sp = PL_stack_base + items; |
a0d0e21e |
2231 | } |
67caa1fe |
2232 | else |
2233 | #endif /* PERL_XSUB_OLDSTYLE */ |
2234 | { |
748a9306 |
2235 | I32 markix = TOPMARK; |
2236 | |
a0d0e21e |
2237 | PUTBACK; |
67955e0c |
2238 | |
2239 | if (!hasargs) { |
2240 | /* Need to copy @_ to stack. Alternative may be to |
2241 | * switch stack to @_, and copy return values |
2242 | * back. This would allow popping @_ in XSUB, e.g.. XXXX */ |
6d4ff0d2 |
2243 | AV* av; |
2244 | I32 items; |
2245 | #ifdef USE_THREADS |
533c011a |
2246 | av = (AV*)PL_curpad[0]; |
6d4ff0d2 |
2247 | #else |
3280af22 |
2248 | av = GvAV(PL_defgv); |
6d4ff0d2 |
2249 | #endif /* USE_THREADS */ |
93965878 |
2250 | items = AvFILLp(av) + 1; /* @_ is not tieable */ |
67955e0c |
2251 | |
2252 | if (items) { |
2253 | /* Mark is at the end of the stack. */ |
924508f0 |
2254 | EXTEND(SP, items); |
2255 | Copy(AvARRAY(av), SP + 1, items, SV*); |
2256 | SP += items; |
67955e0c |
2257 | PUTBACK ; |
2258 | } |
2259 | } |
67caa1fe |
2260 | /* We assume first XSUB in &DB::sub is the called one. */ |
2261 | if (PL_curcopdb) { |
3280af22 |
2262 | SAVESPTR(PL_curcop); |
2263 | PL_curcop = PL_curcopdb; |
2264 | PL_curcopdb = NULL; |
67955e0c |
2265 | } |
2266 | /* Do we need to open block here? XXXX */ |
0cb96387 |
2267 | (void)(*CvXSUB(cv))(aTHXo_ cv); |
748a9306 |
2268 | |
2269 | /* Enforce some sanity in scalar context. */ |
3280af22 |
2270 | if (gimme == G_SCALAR && ++markix != PL_stack_sp - PL_stack_base ) { |
2271 | if (markix > PL_stack_sp - PL_stack_base) |
2272 | *(PL_stack_base + markix) = &PL_sv_undef; |
748a9306 |
2273 | else |
3280af22 |
2274 | *(PL_stack_base + markix) = *PL_stack_sp; |
2275 | PL_stack_sp = PL_stack_base + markix; |
748a9306 |
2276 | } |
a0d0e21e |
2277 | } |
2278 | LEAVE; |
2279 | return NORMAL; |
2280 | } |
2281 | else { |
2282 | dMARK; |
2283 | register I32 items = SP - MARK; |
a0d0e21e |
2284 | AV* padlist = CvPADLIST(cv); |
2285 | SV** svp = AvARRAY(padlist); |
533c011a |
2286 | push_return(PL_op->op_next); |
a0d0e21e |
2287 | PUSHBLOCK(cx, CXt_SUB, MARK); |
2288 | PUSHSUB(cx); |
2289 | CvDEPTH(cv)++; |
6b35e009 |
2290 | /* XXX This would be a natural place to set C<PL_compcv = cv> so |
2291 | * that eval'' ops within this sub know the correct lexical space. |
2292 | * Owing the speed considerations, we choose to search for the cv |
2293 | * in doeval() instead. |
2294 | */ |
a0d0e21e |
2295 | if (CvDEPTH(cv) < 2) |
2296 | (void)SvREFCNT_inc(cv); |
2297 | else { /* save temporaries on recursion? */ |
93965878 |
2298 | if (CvDEPTH(cv) > AvFILLp(padlist)) { |
a0d0e21e |
2299 | AV *av; |
2300 | AV *newpad = newAV(); |
4aa0a1f7 |
2301 | SV **oldpad = AvARRAY(svp[CvDEPTH(cv)-1]); |
93965878 |
2302 | I32 ix = AvFILLp((AV*)svp[1]); |
a0d0e21e |
2303 | svp = AvARRAY(svp[0]); |
748a9306 |
2304 | for ( ;ix > 0; ix--) { |
3280af22 |
2305 | if (svp[ix] != &PL_sv_undef) { |
748a9306 |
2306 | char *name = SvPVX(svp[ix]); |
5f05dabc |
2307 | if ((SvFLAGS(svp[ix]) & SVf_FAKE) /* outer lexical? */ |
2308 | || *name == '&') /* anonymous code? */ |
2309 | { |
2310 | av_store(newpad, ix, SvREFCNT_inc(oldpad[ix])); |
748a9306 |
2311 | } |
2312 | else { /* our own lexical */ |
2313 | if (*name == '@') |
2314 | av_store(newpad, ix, sv = (SV*)newAV()); |
2315 | else if (*name == '%') |
2316 | av_store(newpad, ix, sv = (SV*)newHV()); |
2317 | else |
2318 | av_store(newpad, ix, sv = NEWSV(0,0)); |
2319 | SvPADMY_on(sv); |
2320 | } |
a0d0e21e |
2321 | } |
2322 | else { |
748a9306 |
2323 | av_store(newpad, ix, sv = NEWSV(0,0)); |
a0d0e21e |
2324 | SvPADTMP_on(sv); |
2325 | } |
2326 | } |
2327 | av = newAV(); /* will be @_ */ |
2328 | av_extend(av, 0); |
2329 | av_store(newpad, 0, (SV*)av); |
2330 | AvFLAGS(av) = AVf_REIFY; |
2331 | av_store(padlist, CvDEPTH(cv), (SV*)newpad); |
93965878 |
2332 | AvFILLp(padlist) = CvDEPTH(cv); |
a0d0e21e |
2333 | svp = AvARRAY(padlist); |
2334 | } |
2335 | } |
6d4ff0d2 |
2336 | #ifdef USE_THREADS |
2337 | if (!hasargs) { |
533c011a |
2338 | AV* av = (AV*)PL_curpad[0]; |
6d4ff0d2 |
2339 | |
93965878 |
2340 | items = AvFILLp(av) + 1; |
6d4ff0d2 |
2341 | if (items) { |
2342 | /* Mark is at the end of the stack. */ |
924508f0 |
2343 | EXTEND(SP, items); |
2344 | Copy(AvARRAY(av), SP + 1, items, SV*); |
2345 | SP += items; |
6d4ff0d2 |
2346 | PUTBACK ; |
2347 | } |
2348 | } |
2349 | #endif /* USE_THREADS */ |
3280af22 |
2350 | SAVESPTR(PL_curpad); |
2351 | PL_curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]); |
6d4ff0d2 |
2352 | #ifndef USE_THREADS |
2353 | if (hasargs) |
2354 | #endif /* USE_THREADS */ |
2355 | { |
2356 | AV* av; |
a0d0e21e |
2357 | SV** ary; |
2358 | |
77a005ab |
2359 | #if 0 |
8b73bbec |
2360 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
0f15f207 |
2361 | "%p entersub preparing @_\n", thr)); |
77a005ab |
2362 | #endif |
3280af22 |
2363 | av = (AV*)PL_curpad[0]; |
a0d0e21e |
2364 | if (AvREAL(av)) { |
2365 | av_clear(av); |
2366 | AvREAL_off(av); |
2367 | } |
6d4ff0d2 |
2368 | #ifndef USE_THREADS |
3280af22 |
2369 | cx->blk_sub.savearray = GvAV(PL_defgv); |
2370 | GvAV(PL_defgv) = (AV*)SvREFCNT_inc(av); |
6d4ff0d2 |
2371 | #endif /* USE_THREADS */ |
2372 | cx->blk_sub.argarray = av; |
a0d0e21e |
2373 | ++MARK; |
2374 | |
2375 | if (items > AvMAX(av) + 1) { |
2376 | ary = AvALLOC(av); |
2377 | if (AvARRAY(av) != ary) { |
2378 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); |
2379 | SvPVX(av) = (char*)ary; |
2380 | } |
2381 | if (items > AvMAX(av) + 1) { |
2382 | AvMAX(av) = items - 1; |
2383 | Renew(ary,items,SV*); |
2384 | AvALLOC(av) = ary; |
2385 | SvPVX(av) = (char*)ary; |
2386 | } |
2387 | } |
2388 | Copy(MARK,AvARRAY(av),items,SV*); |
93965878 |
2389 | AvFILLp(av) = items - 1; |
a0d0e21e |
2390 | |
2391 | while (items--) { |
2392 | if (*MARK) |
2393 | SvTEMP_off(*MARK); |
2394 | MARK++; |
2395 | } |
2396 | } |
4a925ff6 |
2397 | /* warning must come *after* we fully set up the context |
2398 | * stuff so that __WARN__ handlers can safely dounwind() |
2399 | * if they want to |
2400 | */ |
2401 | if (CvDEPTH(cv) == 100 && ckWARN(WARN_RECURSION) |
2402 | && !(PERLDB_SUB && cv == GvCV(PL_DBsub))) |
2403 | sub_crush_depth(cv); |
77a005ab |
2404 | #if 0 |
8b73bbec |
2405 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
0f15f207 |
2406 | "%p entersub returning %p\n", thr, CvSTART(cv))); |
77a005ab |
2407 | #endif |
a0d0e21e |
2408 | RETURNOP(CvSTART(cv)); |
2409 | } |
2410 | } |
2411 | |
44a8e56a |
2412 | void |
864dbfa3 |
2413 | Perl_sub_crush_depth(pTHX_ CV *cv) |
44a8e56a |
2414 | { |
2415 | if (CvANON(cv)) |
cea2e8a9 |
2416 | Perl_warner(aTHX_ WARN_RECURSION, "Deep recursion on anonymous subroutine"); |
44a8e56a |
2417 | else { |
2418 | SV* tmpstr = sv_newmortal(); |
2419 | gv_efullname3(tmpstr, CvGV(cv), Nullch); |
cea2e8a9 |
2420 | Perl_warner(aTHX_ WARN_RECURSION, "Deep recursion on subroutine \"%s\"", |
599cee73 |
2421 | SvPVX(tmpstr)); |
44a8e56a |
2422 | } |
2423 | } |
2424 | |
a0d0e21e |
2425 | PP(pp_aelem) |
2426 | { |
4e35701f |
2427 | djSP; |
a0d0e21e |
2428 | SV** svp; |
748a9306 |
2429 | I32 elem = POPi; |
68dc0745 |
2430 | AV* av = (AV*)POPs; |
533c011a |
2431 | U32 lval = PL_op->op_flags & OPf_MOD; |
2432 | U32 defer = (PL_op->op_private & OPpLVAL_DEFER) && (elem > AvFILL(av)); |
be6c24e0 |
2433 | SV *sv; |
a0d0e21e |
2434 | |
748a9306 |
2435 | if (elem > 0) |
3280af22 |
2436 | elem -= PL_curcop->cop_arybase; |
a0d0e21e |
2437 | if (SvTYPE(av) != SVt_PVAV) |
2438 | RETPUSHUNDEF; |
68dc0745 |
2439 | svp = av_fetch(av, elem, lval && !defer); |
a0d0e21e |
2440 | if (lval) { |
3280af22 |
2441 | if (!svp || *svp == &PL_sv_undef) { |
68dc0745 |
2442 | SV* lv; |
2443 | if (!defer) |
cea2e8a9 |
2444 | DIE(aTHX_ PL_no_aelem, elem); |
68dc0745 |
2445 | lv = sv_newmortal(); |
2446 | sv_upgrade(lv, SVt_PVLV); |
2447 | LvTYPE(lv) = 'y'; |
2448 | sv_magic(lv, Nullsv, 'y', Nullch, 0); |
2449 | LvTARG(lv) = SvREFCNT_inc(av); |
2450 | LvTARGOFF(lv) = elem; |
2451 | LvTARGLEN(lv) = 1; |
2452 | PUSHs(lv); |
2453 | RETURN; |
2454 | } |
533c011a |
2455 | if (PL_op->op_private & OPpLVAL_INTRO) |
161b7d16 |
2456 | save_aelem(av, elem, svp); |
533c011a |
2457 | else if (PL_op->op_private & OPpDEREF) |
2458 | vivify_ref(*svp, PL_op->op_private & OPpDEREF); |
a0d0e21e |
2459 | } |
3280af22 |
2460 | sv = (svp ? *svp : &PL_sv_undef); |
be6c24e0 |
2461 | if (!lval && SvGMAGICAL(sv)) /* see note in pp_helem() */ |
2462 | sv = sv_mortalcopy(sv); |
2463 | PUSHs(sv); |
a0d0e21e |
2464 | RETURN; |
2465 | } |
2466 | |
02a9e968 |
2467 | void |
864dbfa3 |
2468 | Perl_vivify_ref(pTHX_ SV *sv, U32 to_what) |
02a9e968 |
2469 | { |
2470 | if (SvGMAGICAL(sv)) |
2471 | mg_get(sv); |
2472 | if (!SvOK(sv)) { |
2473 | if (SvREADONLY(sv)) |
cea2e8a9 |
2474 | Perl_croak(aTHX_ PL_no_modify); |
5f05dabc |
2475 | if (SvTYPE(sv) < SVt_RV) |
2476 | sv_upgrade(sv, SVt_RV); |
2477 | else if (SvTYPE(sv) >= SVt_PV) { |
2478 | (void)SvOOK_off(sv); |
2479 | Safefree(SvPVX(sv)); |
2480 | SvLEN(sv) = SvCUR(sv) = 0; |
2481 | } |
68dc0745 |
2482 | switch (to_what) { |
5f05dabc |
2483 | case OPpDEREF_SV: |
8c52afec |
2484 | SvRV(sv) = NEWSV(355,0); |
5f05dabc |
2485 | break; |
2486 | case OPpDEREF_AV: |
2487 | SvRV(sv) = (SV*)newAV(); |
2488 | break; |
2489 | case OPpDEREF_HV: |
2490 | SvRV(sv) = (SV*)newHV(); |
2491 | break; |
2492 | } |
02a9e968 |
2493 | SvROK_on(sv); |
2494 | SvSETMAGIC(sv); |
2495 | } |
2496 | } |
2497 | |
a0d0e21e |
2498 | PP(pp_method) |
2499 | { |
4e35701f |
2500 | djSP; |
a0d0e21e |
2501 | SV* sv; |
2502 | SV* ob; |
2503 | GV* gv; |
56304f61 |
2504 | HV* stash; |
2505 | char* name; |
ac91690f |
2506 | char* packname; |
2507 | STRLEN packlen; |
a0d0e21e |
2508 | |
fb73857a |
2509 | if (SvROK(TOPs)) { |
2510 | sv = SvRV(TOPs); |
2511 | if (SvTYPE(sv) == SVt_PVCV) { |
2512 | SETs(sv); |
2513 | RETURN; |
2514 | } |
2515 | } |
2516 | |
2d8e6c8d |
2517 | name = SvPV(TOPs, packlen); |
3280af22 |
2518 | sv = *(PL_stack_base + TOPMARK + 1); |
a0d0e21e |
2519 | |
16d20bd9 |
2520 | if (SvGMAGICAL(sv)) |
2521 | mg_get(sv); |
a0d0e21e |
2522 | if (SvROK(sv)) |
16d20bd9 |
2523 | ob = (SV*)SvRV(sv); |
a0d0e21e |
2524 | else { |
2525 | GV* iogv; |
a0d0e21e |
2526 | |
56304f61 |
2527 | packname = Nullch; |
a0d0e21e |
2528 | if (!SvOK(sv) || |
56304f61 |
2529 | !(packname = SvPV(sv, packlen)) || |
a0d0e21e |
2530 | !(iogv = gv_fetchpv(packname, FALSE, SVt_PVIO)) || |
2531 | !(ob=(SV*)GvIO(iogv))) |
2532 | { |
834a4ddd |
2533 | if (!packname || |
2534 | ((*(U8*)packname >= 0xc0 && IN_UTF8) |
b86a2fa7 |
2535 | ? !isIDFIRST_utf8((U8*)packname) |
834a4ddd |
2536 | : !isIDFIRST(*packname) |
2537 | )) |
2538 | { |
cea2e8a9 |
2539 | DIE(aTHX_ "Can't call method \"%s\" %s", name, |
72b5445b |
2540 | SvOK(sv)? "without a package or object reference" |
2541 | : "on an undefined value"); |
834a4ddd |
2542 | } |
56304f61 |
2543 | stash = gv_stashpvn(packname, packlen, TRUE); |
ac91690f |
2544 | goto fetch; |
a0d0e21e |
2545 | } |
3280af22 |
2546 | *(PL_stack_base + TOPMARK + 1) = sv_2mortal(newRV((SV*)iogv)); |
a0d0e21e |
2547 | } |
2548 | |
ac91690f |
2549 | if (!ob || !SvOBJECT(ob)) |
cea2e8a9 |
2550 | DIE(aTHX_ "Can't call method \"%s\" on unblessed reference", name); |
a0d0e21e |
2551 | |
56304f61 |
2552 | stash = SvSTASH(ob); |
a0d0e21e |
2553 | |
ac91690f |
2554 | fetch: |
ac91690f |
2555 | gv = gv_fetchmethod(stash, name); |
56304f61 |
2556 | if (!gv) { |
2557 | char* leaf = name; |
2558 | char* sep = Nullch; |
2559 | char* p; |
2560 | |
2561 | for (p = name; *p; p++) { |
2562 | if (*p == '\'') |
2563 | sep = p, leaf = p + 1; |
2564 | else if (*p == ':' && *(p + 1) == ':') |
2565 | sep = p, leaf = p + 2; |
2566 | } |
2567 | if (!sep || ((sep - name) == 5 && strnEQ(name, "SUPER", 5))) { |
3280af22 |
2568 | packname = HvNAME(sep ? PL_curcop->cop_stash : stash); |
56304f61 |
2569 | packlen = strlen(packname); |
2570 | } |
2571 | else { |
2572 | packname = name; |
2573 | packlen = sep - name; |
2574 | } |
cea2e8a9 |
2575 | DIE(aTHX_ "Can't locate object method \"%s\" via package \"%.*s\"", |
56304f61 |
2576 | leaf, (int)packlen, packname); |
2577 | } |
8ebc5c01 |
2578 | SETs(isGV(gv) ? (SV*)GvCV(gv) : (SV*)gv); |
a0d0e21e |
2579 | RETURN; |
2580 | } |
22239a37 |
2581 | |
51371543 |
2582 | #ifdef USE_THREADS |
2583 | static void |
2584 | unset_cvowner(pTHXo_ void *cvarg) |
2585 | { |
2586 | register CV* cv = (CV *) cvarg; |
2587 | #ifdef DEBUGGING |
2588 | dTHR; |
2589 | #endif /* DEBUGGING */ |
2590 | |
2591 | DEBUG_S((PerlIO_printf(PerlIO_stderr(), "%p unsetting CvOWNER of %p:%s\n", |
2592 | thr, cv, SvPEEK((SV*)cv)))); |
2593 | MUTEX_LOCK(CvMUTEXP(cv)); |
2594 | DEBUG_S(if (CvDEPTH(cv) != 0) |
2595 | PerlIO_printf(PerlIO_stderr(), "depth %ld != 0\n", |
2596 | CvDEPTH(cv));); |
2597 | assert(thr == CvOWNER(cv)); |
2598 | CvOWNER(cv) = 0; |
2599 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
2600 | SvREFCNT_dec(cv); |
2601 | } |
2602 | #endif /* USE_THREADS */ |