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 | |
a0d0e21e |
33 | /* Hot code. */ |
34 | |
11343788 |
35 | #ifdef USE_THREADS |
51371543 |
36 | static void unset_cvowner(pTHXo_ void *cvarg); |
11343788 |
37 | #endif /* USE_THREADS */ |
38 | |
a0d0e21e |
39 | PP(pp_const) |
40 | { |
4e35701f |
41 | djSP; |
a0d0e21e |
42 | XPUSHs(cSVOP->op_sv); |
43 | RETURN; |
44 | } |
45 | |
46 | PP(pp_nextstate) |
47 | { |
533c011a |
48 | PL_curcop = (COP*)PL_op; |
a0d0e21e |
49 | TAINT_NOT; /* Each statement is presumed innocent */ |
3280af22 |
50 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e |
51 | FREETMPS; |
52 | return NORMAL; |
53 | } |
54 | |
55 | PP(pp_gvsv) |
56 | { |
4e35701f |
57 | djSP; |
924508f0 |
58 | EXTEND(SP,1); |
533c011a |
59 | if (PL_op->op_private & OPpLVAL_INTRO) |
a0d0e21e |
60 | PUSHs(save_scalar(cGVOP->op_gv)); |
61 | else |
62 | PUSHs(GvSV(cGVOP->op_gv)); |
63 | RETURN; |
64 | } |
65 | |
66 | PP(pp_null) |
67 | { |
68 | return NORMAL; |
69 | } |
70 | |
7399586d |
71 | PP(pp_setstate) |
72 | { |
73 | PL_curcop = (COP*)PL_op; |
74 | return NORMAL; |
75 | } |
76 | |
a0d0e21e |
77 | PP(pp_pushmark) |
78 | { |
3280af22 |
79 | PUSHMARK(PL_stack_sp); |
a0d0e21e |
80 | return NORMAL; |
81 | } |
82 | |
83 | PP(pp_stringify) |
84 | { |
4e35701f |
85 | djSP; dTARGET; |
a0d0e21e |
86 | STRLEN len; |
87 | char *s; |
88 | s = SvPV(TOPs,len); |
89 | sv_setpvn(TARG,s,len); |
90 | SETTARG; |
91 | RETURN; |
92 | } |
93 | |
94 | PP(pp_gv) |
95 | { |
4e35701f |
96 | djSP; |
a0d0e21e |
97 | XPUSHs((SV*)cGVOP->op_gv); |
98 | RETURN; |
99 | } |
100 | |
101 | PP(pp_and) |
102 | { |
4e35701f |
103 | djSP; |
a0d0e21e |
104 | if (!SvTRUE(TOPs)) |
105 | RETURN; |
106 | else { |
107 | --SP; |
108 | RETURNOP(cLOGOP->op_other); |
109 | } |
110 | } |
111 | |
112 | PP(pp_sassign) |
113 | { |
4e35701f |
114 | djSP; dPOPTOPssrl; |
748a9306 |
115 | MAGIC *mg; |
116 | |
533c011a |
117 | if (PL_op->op_private & OPpASSIGN_BACKWARDS) { |
a0d0e21e |
118 | SV *temp; |
119 | temp = left; left = right; right = temp; |
120 | } |
3280af22 |
121 | if (PL_tainting && PL_tainted && !SvTAINTED(left)) |
a0d0e21e |
122 | TAINT_NOT; |
54310121 |
123 | SvSetMagicSV(right, left); |
a0d0e21e |
124 | SETs(right); |
125 | RETURN; |
126 | } |
127 | |
128 | PP(pp_cond_expr) |
129 | { |
4e35701f |
130 | djSP; |
a0d0e21e |
131 | if (SvTRUEx(POPs)) |
1a67a97c |
132 | RETURNOP(cLOGOP->op_other); |
a0d0e21e |
133 | else |
1a67a97c |
134 | RETURNOP(cLOGOP->op_next); |
a0d0e21e |
135 | } |
136 | |
137 | PP(pp_unstack) |
138 | { |
139 | I32 oldsave; |
140 | TAINT_NOT; /* Each statement is presumed innocent */ |
3280af22 |
141 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e |
142 | FREETMPS; |
3280af22 |
143 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e |
144 | LEAVE_SCOPE(oldsave); |
145 | return NORMAL; |
146 | } |
147 | |
a0d0e21e |
148 | PP(pp_concat) |
149 | { |
4e35701f |
150 | djSP; dATARGET; tryAMAGICbin(concat,opASSIGN); |
748a9306 |
151 | { |
152 | dPOPTOPssrl; |
a0d0e21e |
153 | STRLEN len; |
154 | char *s; |
155 | if (TARG != left) { |
156 | s = SvPV(left,len); |
157 | sv_setpvn(TARG,s,len); |
158 | } |
c07a80fd |
159 | else if (SvGMAGICAL(TARG)) |
160 | mg_get(TARG); |
7a4c00b4 |
161 | else if (!SvOK(TARG) && SvTYPE(TARG) <= SVt_PVMG) { |
748a9306 |
162 | sv_setpv(TARG, ""); /* Suppress warning. */ |
7a4c00b4 |
163 | s = SvPV_force(TARG, len); |
4633a7c4 |
164 | } |
a0d0e21e |
165 | s = SvPV(right,len); |
5bc28da9 |
166 | if (SvOK(TARG)) { |
167 | #if defined(PERL_Y2KWARN) |
168 | if ((SvIOK(right) || SvNOK(right)) && ckWARN(WARN_MISC)) { |
169 | STRLEN n; |
170 | char *s = SvPV(TARG,n); |
171 | if (n >= 2 && s[n-2] == '1' && s[n-1] == '9' |
172 | && (n == 2 || !isDIGIT(s[n-3]))) |
173 | { |
174 | Perl_warner(aTHX_ WARN_MISC, "Possible Y2K bug: %s", |
175 | "about to append an integer to '19'"); |
176 | } |
177 | } |
178 | #endif |
68dc0745 |
179 | sv_catpvn(TARG,s,len); |
5bc28da9 |
180 | } |
68dc0745 |
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); |
cf2093f6 |
603 | #ifdef IV_IS_QUAD |
b9c39e73 |
604 | if (HvFILL(hv)) |
cf2093f6 |
605 | Perl_sv_setpvf(aTHX_ TARG, "%" PERL_PRId64 "/%" PERL_PRId64, |
606 | (Quad_t)HvFILL(hv), (Quad_t)HvMAX(hv) + 1); |
607 | #else |
b9c39e73 |
608 | if (HvFILL(hv)) |
cf2093f6 |
609 | Perl_sv_setpvf(aTHX_ TARG, "%ld/%ld", |
610 | (long)HvFILL(hv), (long)HvMAX(hv) + 1); |
611 | #endif |
a0d0e21e |
612 | else |
613 | sv_setiv(TARG, 0); |
c750a3ec |
614 | |
a0d0e21e |
615 | SETTARG; |
616 | RETURN; |
617 | } |
618 | } |
619 | |
620 | PP(pp_aassign) |
621 | { |
4e35701f |
622 | djSP; |
3280af22 |
623 | SV **lastlelem = PL_stack_sp; |
624 | SV **lastrelem = PL_stack_base + POPMARK; |
625 | SV **firstrelem = PL_stack_base + POPMARK + 1; |
a0d0e21e |
626 | SV **firstlelem = lastrelem + 1; |
627 | |
628 | register SV **relem; |
629 | register SV **lelem; |
630 | |
631 | register SV *sv; |
632 | register AV *ary; |
633 | |
54310121 |
634 | I32 gimme; |
a0d0e21e |
635 | HV *hash; |
636 | I32 i; |
637 | int magic; |
638 | |
3280af22 |
639 | PL_delaymagic = DM_DELAY; /* catch simultaneous items */ |
a0d0e21e |
640 | |
641 | /* If there's a common identifier on both sides we have to take |
642 | * special care that assigning the identifier on the left doesn't |
643 | * clobber a value on the right that's used later in the list. |
644 | */ |
533c011a |
645 | if (PL_op->op_private & OPpASSIGN_COMMON) { |
cc5e57d2 |
646 | EXTEND_MORTAL(lastrelem - firstrelem + 1); |
a0d0e21e |
647 | for (relem = firstrelem; relem <= lastrelem; relem++) { |
648 | /*SUPPRESS 560*/ |
a1f49e72 |
649 | if (sv = *relem) { |
650 | TAINT_NOT; /* Each item is independent */ |
a0d0e21e |
651 | *relem = sv_mortalcopy(sv); |
a1f49e72 |
652 | } |
a0d0e21e |
653 | } |
654 | } |
655 | |
656 | relem = firstrelem; |
657 | lelem = firstlelem; |
658 | ary = Null(AV*); |
659 | hash = Null(HV*); |
660 | while (lelem <= lastlelem) { |
bbce6d69 |
661 | TAINT_NOT; /* Each item stands on its own, taintwise. */ |
a0d0e21e |
662 | sv = *lelem++; |
663 | switch (SvTYPE(sv)) { |
664 | case SVt_PVAV: |
665 | ary = (AV*)sv; |
748a9306 |
666 | magic = SvMAGICAL(ary) != 0; |
a0d0e21e |
667 | |
668 | av_clear(ary); |
7e42bd57 |
669 | av_extend(ary, lastrelem - relem); |
a0d0e21e |
670 | i = 0; |
671 | while (relem <= lastrelem) { /* gobble up all the rest */ |
5117ca91 |
672 | SV **didstore; |
a0d0e21e |
673 | sv = NEWSV(28,0); |
674 | assert(*relem); |
675 | sv_setsv(sv,*relem); |
676 | *(relem++) = sv; |
5117ca91 |
677 | didstore = av_store(ary,i++,sv); |
678 | if (magic) { |
fb73857a |
679 | if (SvSMAGICAL(sv)) |
680 | mg_set(sv); |
5117ca91 |
681 | if (!didstore) |
8127e0e3 |
682 | sv_2mortal(sv); |
5117ca91 |
683 | } |
bbce6d69 |
684 | TAINT_NOT; |
a0d0e21e |
685 | } |
686 | break; |
687 | case SVt_PVHV: { |
a0d0e21e |
688 | SV *tmpstr; |
689 | |
690 | hash = (HV*)sv; |
748a9306 |
691 | magic = SvMAGICAL(hash) != 0; |
a0d0e21e |
692 | hv_clear(hash); |
693 | |
694 | while (relem < lastrelem) { /* gobble up all the rest */ |
5117ca91 |
695 | HE *didstore; |
4633a7c4 |
696 | if (*relem) |
a0d0e21e |
697 | sv = *(relem++); |
4633a7c4 |
698 | else |
3280af22 |
699 | sv = &PL_sv_no, relem++; |
a0d0e21e |
700 | tmpstr = NEWSV(29,0); |
701 | if (*relem) |
702 | sv_setsv(tmpstr,*relem); /* value */ |
703 | *(relem++) = tmpstr; |
5117ca91 |
704 | didstore = hv_store_ent(hash,sv,tmpstr,0); |
705 | if (magic) { |
fb73857a |
706 | if (SvSMAGICAL(tmpstr)) |
707 | mg_set(tmpstr); |
5117ca91 |
708 | if (!didstore) |
8127e0e3 |
709 | sv_2mortal(tmpstr); |
5117ca91 |
710 | } |
bbce6d69 |
711 | TAINT_NOT; |
8e07c86e |
712 | } |
6a0deba8 |
713 | if (relem == lastrelem) { |
714 | if (*relem) { |
715 | HE *didstore; |
599cee73 |
716 | if (ckWARN(WARN_UNSAFE)) { |
6a0deba8 |
717 | if (relem == firstrelem && |
718 | SvROK(*relem) && |
719 | ( SvTYPE(SvRV(*relem)) == SVt_PVAV || |
720 | SvTYPE(SvRV(*relem)) == SVt_PVHV ) ) |
cea2e8a9 |
721 | Perl_warner(aTHX_ WARN_UNSAFE, "Reference found where even-sized list expected"); |
6a0deba8 |
722 | else |
cea2e8a9 |
723 | Perl_warner(aTHX_ WARN_UNSAFE, "Odd number of elements in hash assignment"); |
6a0deba8 |
724 | } |
725 | tmpstr = NEWSV(29,0); |
726 | didstore = hv_store_ent(hash,*relem,tmpstr,0); |
727 | if (magic) { |
728 | if (SvSMAGICAL(tmpstr)) |
729 | mg_set(tmpstr); |
730 | if (!didstore) |
8127e0e3 |
731 | sv_2mortal(tmpstr); |
6a0deba8 |
732 | } |
733 | TAINT_NOT; |
734 | } |
735 | relem++; |
1930e939 |
736 | } |
a0d0e21e |
737 | } |
738 | break; |
739 | default: |
6fc92669 |
740 | if (SvIMMORTAL(sv)) { |
741 | if (relem <= lastrelem) |
742 | relem++; |
743 | break; |
a0d0e21e |
744 | } |
745 | if (relem <= lastrelem) { |
746 | sv_setsv(sv, *relem); |
747 | *(relem++) = sv; |
748 | } |
749 | else |
3280af22 |
750 | sv_setsv(sv, &PL_sv_undef); |
a0d0e21e |
751 | SvSETMAGIC(sv); |
752 | break; |
753 | } |
754 | } |
3280af22 |
755 | if (PL_delaymagic & ~DM_DELAY) { |
756 | if (PL_delaymagic & DM_UID) { |
a0d0e21e |
757 | #ifdef HAS_SETRESUID |
b28d0864 |
758 | (void)setresuid(PL_uid,PL_euid,(Uid_t)-1); |
56febc5e |
759 | #else |
760 | # ifdef HAS_SETREUID |
3280af22 |
761 | (void)setreuid(PL_uid,PL_euid); |
56febc5e |
762 | # else |
763 | # ifdef HAS_SETRUID |
b28d0864 |
764 | if ((PL_delaymagic & DM_UID) == DM_RUID) { |
765 | (void)setruid(PL_uid); |
766 | PL_delaymagic &= ~DM_RUID; |
a0d0e21e |
767 | } |
56febc5e |
768 | # endif /* HAS_SETRUID */ |
769 | # ifdef HAS_SETEUID |
b28d0864 |
770 | if ((PL_delaymagic & DM_UID) == DM_EUID) { |
771 | (void)seteuid(PL_uid); |
772 | PL_delaymagic &= ~DM_EUID; |
a0d0e21e |
773 | } |
56febc5e |
774 | # endif /* HAS_SETEUID */ |
b28d0864 |
775 | if (PL_delaymagic & DM_UID) { |
776 | if (PL_uid != PL_euid) |
cea2e8a9 |
777 | DIE(aTHX_ "No setreuid available"); |
b28d0864 |
778 | (void)PerlProc_setuid(PL_uid); |
a0d0e21e |
779 | } |
56febc5e |
780 | # endif /* HAS_SETREUID */ |
781 | #endif /* HAS_SETRESUID */ |
d8eceb89 |
782 | PL_uid = PerlProc_getuid(); |
783 | PL_euid = PerlProc_geteuid(); |
a0d0e21e |
784 | } |
3280af22 |
785 | if (PL_delaymagic & DM_GID) { |
a0d0e21e |
786 | #ifdef HAS_SETRESGID |
b28d0864 |
787 | (void)setresgid(PL_gid,PL_egid,(Gid_t)-1); |
56febc5e |
788 | #else |
789 | # ifdef HAS_SETREGID |
3280af22 |
790 | (void)setregid(PL_gid,PL_egid); |
56febc5e |
791 | # else |
792 | # ifdef HAS_SETRGID |
b28d0864 |
793 | if ((PL_delaymagic & DM_GID) == DM_RGID) { |
794 | (void)setrgid(PL_gid); |
795 | PL_delaymagic &= ~DM_RGID; |
a0d0e21e |
796 | } |
56febc5e |
797 | # endif /* HAS_SETRGID */ |
798 | # ifdef HAS_SETEGID |
b28d0864 |
799 | if ((PL_delaymagic & DM_GID) == DM_EGID) { |
800 | (void)setegid(PL_gid); |
801 | PL_delaymagic &= ~DM_EGID; |
a0d0e21e |
802 | } |
56febc5e |
803 | # endif /* HAS_SETEGID */ |
b28d0864 |
804 | if (PL_delaymagic & DM_GID) { |
805 | if (PL_gid != PL_egid) |
cea2e8a9 |
806 | DIE(aTHX_ "No setregid available"); |
b28d0864 |
807 | (void)PerlProc_setgid(PL_gid); |
a0d0e21e |
808 | } |
56febc5e |
809 | # endif /* HAS_SETREGID */ |
810 | #endif /* HAS_SETRESGID */ |
d8eceb89 |
811 | PL_gid = PerlProc_getgid(); |
812 | PL_egid = PerlProc_getegid(); |
a0d0e21e |
813 | } |
3280af22 |
814 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
a0d0e21e |
815 | } |
3280af22 |
816 | PL_delaymagic = 0; |
54310121 |
817 | |
818 | gimme = GIMME_V; |
819 | if (gimme == G_VOID) |
820 | SP = firstrelem - 1; |
821 | else if (gimme == G_SCALAR) { |
822 | dTARGET; |
823 | SP = firstrelem; |
824 | SETi(lastrelem - firstrelem + 1); |
825 | } |
826 | else { |
a0d0e21e |
827 | if (ary || hash) |
828 | SP = lastrelem; |
829 | else |
830 | SP = firstrelem + (lastlelem - firstlelem); |
0c8c7a05 |
831 | lelem = firstlelem + (relem - firstrelem); |
5f05dabc |
832 | while (relem <= SP) |
3280af22 |
833 | *relem++ = (lelem <= lastlelem) ? *lelem++ : &PL_sv_undef; |
a0d0e21e |
834 | } |
54310121 |
835 | RETURN; |
a0d0e21e |
836 | } |
837 | |
8782bef2 |
838 | PP(pp_qr) |
839 | { |
840 | djSP; |
841 | register PMOP *pm = cPMOP; |
842 | SV *rv = sv_newmortal(); |
57668c4d |
843 | SV *sv = newSVrv(rv, "Regexp"); |
8782bef2 |
844 | sv_magic(sv,(SV*)ReREFCNT_inc(pm->op_pmregexp),'r',0,0); |
845 | RETURNX(PUSHs(rv)); |
846 | } |
847 | |
a0d0e21e |
848 | PP(pp_match) |
849 | { |
4e35701f |
850 | djSP; dTARG; |
a0d0e21e |
851 | register PMOP *pm = cPMOP; |
852 | register char *t; |
853 | register char *s; |
854 | char *strend; |
855 | I32 global; |
f722798b |
856 | I32 r_flags = REXEC_CHECKED; |
857 | char *truebase; /* Start of string */ |
d9f97599 |
858 | register REGEXP *rx = pm->op_pmregexp; |
b3eb6a9b |
859 | bool rxtainted; |
a0d0e21e |
860 | I32 gimme = GIMME; |
861 | STRLEN len; |
748a9306 |
862 | I32 minmatch = 0; |
3280af22 |
863 | I32 oldsave = PL_savestack_ix; |
f86702cc |
864 | I32 update_minmatch = 1; |
e60df1fa |
865 | I32 had_zerolen = 0; |
a0d0e21e |
866 | |
533c011a |
867 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e |
868 | TARG = POPs; |
869 | else { |
54b9620d |
870 | TARG = DEFSV; |
a0d0e21e |
871 | EXTEND(SP,1); |
872 | } |
c277df42 |
873 | PUTBACK; /* EVAL blocks need stack_sp. */ |
a0d0e21e |
874 | s = SvPV(TARG, len); |
875 | strend = s + len; |
876 | if (!s) |
cea2e8a9 |
877 | DIE(aTHX_ "panic: do_match"); |
b3eb6a9b |
878 | rxtainted = ((pm->op_pmdynflags & PMdf_TAINTED) || |
3280af22 |
879 | (PL_tainted && (pm->op_pmflags & PMf_RETAINT))); |
9212bbba |
880 | TAINT_NOT; |
a0d0e21e |
881 | |
48c036b1 |
882 | if (pm->op_pmdynflags & PMdf_USED) { |
c277df42 |
883 | failure: |
a0d0e21e |
884 | if (gimme == G_ARRAY) |
885 | RETURN; |
886 | RETPUSHNO; |
887 | } |
888 | |
3280af22 |
889 | if (!rx->prelen && PL_curpm) { |
890 | pm = PL_curpm; |
d9f97599 |
891 | rx = pm->op_pmregexp; |
a0d0e21e |
892 | } |
d9f97599 |
893 | if (rx->minlen > len) goto failure; |
c277df42 |
894 | |
a0d0e21e |
895 | truebase = t = s; |
ad94a511 |
896 | |
897 | /* XXXX What part of this is needed with true \G-support? */ |
a0d0e21e |
898 | if (global = pm->op_pmflags & PMf_GLOBAL) { |
cf93c79d |
899 | rx->startp[0] = -1; |
a0d0e21e |
900 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
901 | MAGIC* mg = mg_find(TARG, 'g'); |
565764a8 |
902 | if (mg && mg->mg_len >= 0) { |
b7a35066 |
903 | if (!(rx->reganch & ROPT_GPOS_SEEN)) |
cf93c79d |
904 | rx->endp[0] = rx->startp[0] = mg->mg_len; |
0ef3e39e |
905 | else if (rx->reganch & ROPT_ANCH_GPOS) { |
906 | r_flags |= REXEC_IGNOREPOS; |
cf93c79d |
907 | rx->endp[0] = rx->startp[0] = mg->mg_len; |
0ef3e39e |
908 | } |
748a9306 |
909 | minmatch = (mg->mg_flags & MGf_MINMATCH); |
f86702cc |
910 | update_minmatch = 0; |
748a9306 |
911 | } |
a0d0e21e |
912 | } |
913 | } |
0ef3e39e |
914 | if ((gimme != G_ARRAY && !global && rx->nparens) |
915 | || SvTEMP(TARG) || PL_sawampersand) |
916 | r_flags |= REXEC_COPY_STR; |
f722798b |
917 | if (SvSCREAM(TARG)) |
22e551b9 |
918 | r_flags |= REXEC_SCREAM; |
919 | |
a0d0e21e |
920 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
3280af22 |
921 | SAVEINT(PL_multiline); |
922 | PL_multiline = pm->op_pmflags & PMf_MULTILINE; |
a0d0e21e |
923 | } |
924 | |
925 | play_it_again: |
cf93c79d |
926 | if (global && rx->startp[0] != -1) { |
927 | t = s = rx->endp[0] + truebase; |
d9f97599 |
928 | if ((s + rx->minlen) > strend) |
a0d0e21e |
929 | goto nope; |
f86702cc |
930 | if (update_minmatch++) |
e60df1fa |
931 | minmatch = had_zerolen; |
a0d0e21e |
932 | } |
f722798b |
933 | if (rx->reganch & RE_USE_INTUIT) { |
934 | s = CALLREG_INTUIT_START(aTHX_ rx, TARG, s, strend, r_flags, NULL); |
935 | |
936 | if (!s) |
937 | goto nope; |
938 | if ( (rx->reganch & ROPT_CHECK_ALL) |
939 | && !PL_sawampersand |
940 | && ((rx->reganch & ROPT_NOSCAN) |
941 | || !((rx->reganch & RE_INTUIT_TAIL) |
942 | && (r_flags & REXEC_SCREAM)))) |
943 | goto yup; |
a0d0e21e |
944 | } |
cea2e8a9 |
945 | if (CALLREGEXEC(aTHX_ rx, s, strend, truebase, minmatch, TARG, NULL, r_flags)) |
bbce6d69 |
946 | { |
3280af22 |
947 | PL_curpm = pm; |
a0d0e21e |
948 | if (pm->op_pmflags & PMf_ONCE) |
48c036b1 |
949 | pm->op_pmdynflags |= PMdf_USED; |
a0d0e21e |
950 | goto gotcha; |
951 | } |
952 | else |
953 | goto ret_no; |
954 | /*NOTREACHED*/ |
955 | |
956 | gotcha: |
72311751 |
957 | if (rxtainted) |
958 | RX_MATCH_TAINTED_on(rx); |
959 | TAINT_IF(RX_MATCH_TAINTED(rx)); |
a0d0e21e |
960 | if (gimme == G_ARRAY) { |
961 | I32 iters, i, len; |
962 | |
d9f97599 |
963 | iters = rx->nparens; |
a0d0e21e |
964 | if (global && !iters) |
965 | i = 1; |
966 | else |
967 | i = 0; |
c277df42 |
968 | SPAGAIN; /* EVAL blocks could move the stack. */ |
a0d0e21e |
969 | EXTEND(SP, iters + i); |
bbce6d69 |
970 | EXTEND_MORTAL(iters + i); |
a0d0e21e |
971 | for (i = !i; i <= iters; i++) { |
972 | PUSHs(sv_newmortal()); |
973 | /*SUPPRESS 560*/ |
cf93c79d |
974 | if ((rx->startp[i] != -1) && rx->endp[i] != -1 ) { |
975 | len = rx->endp[i] - rx->startp[i]; |
976 | s = rx->startp[i] + truebase; |
a0d0e21e |
977 | sv_setpvn(*SP, s, len); |
978 | } |
979 | } |
980 | if (global) { |
cf93c79d |
981 | had_zerolen = (rx->startp[0] != -1 |
982 | && rx->startp[0] == rx->endp[0]); |
c277df42 |
983 | PUTBACK; /* EVAL blocks may use stack */ |
cf93c79d |
984 | r_flags |= REXEC_IGNOREPOS | REXEC_NOT_FIRST; |
a0d0e21e |
985 | goto play_it_again; |
986 | } |
f7e33566 |
987 | else if (!iters) |
bde848c5 |
988 | XPUSHs(&PL_sv_yes); |
4633a7c4 |
989 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
990 | RETURN; |
991 | } |
992 | else { |
993 | if (global) { |
994 | MAGIC* mg = 0; |
995 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) |
996 | mg = mg_find(TARG, 'g'); |
997 | if (!mg) { |
998 | sv_magic(TARG, (SV*)0, 'g', Nullch, 0); |
999 | mg = mg_find(TARG, 'g'); |
1000 | } |
cf93c79d |
1001 | if (rx->startp[0] != -1) { |
1002 | mg->mg_len = rx->endp[0]; |
d9f97599 |
1003 | if (rx->startp[0] == rx->endp[0]) |
748a9306 |
1004 | mg->mg_flags |= MGf_MINMATCH; |
1005 | else |
1006 | mg->mg_flags &= ~MGf_MINMATCH; |
1007 | } |
a0d0e21e |
1008 | } |
4633a7c4 |
1009 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1010 | RETPUSHYES; |
1011 | } |
1012 | |
f722798b |
1013 | yup: /* Confirmed by INTUIT */ |
72311751 |
1014 | if (rxtainted) |
1015 | RX_MATCH_TAINTED_on(rx); |
1016 | TAINT_IF(RX_MATCH_TAINTED(rx)); |
3280af22 |
1017 | PL_curpm = pm; |
a0d0e21e |
1018 | if (pm->op_pmflags & PMf_ONCE) |
48c036b1 |
1019 | pm->op_pmdynflags |= PMdf_USED; |
cf93c79d |
1020 | if (RX_MATCH_COPIED(rx)) |
1021 | Safefree(rx->subbeg); |
1022 | RX_MATCH_COPIED_off(rx); |
1023 | rx->subbeg = Nullch; |
a0d0e21e |
1024 | if (global) { |
d9f97599 |
1025 | rx->subbeg = truebase; |
cf93c79d |
1026 | rx->startp[0] = s - truebase; |
f722798b |
1027 | rx->endp[0] = s - truebase + rx->minlen; |
cf93c79d |
1028 | rx->sublen = strend - truebase; |
a0d0e21e |
1029 | goto gotcha; |
cf93c79d |
1030 | } |
3280af22 |
1031 | if (PL_sawampersand) { |
cf93c79d |
1032 | I32 off; |
a0d0e21e |
1033 | |
cf93c79d |
1034 | rx->subbeg = savepvn(t, strend - t); |
1035 | rx->sublen = strend - t; |
1036 | RX_MATCH_COPIED_on(rx); |
1037 | off = rx->startp[0] = s - t; |
f722798b |
1038 | rx->endp[0] = off + rx->minlen; |
cf93c79d |
1039 | } |
1040 | else { /* startp/endp are used by @- @+. */ |
1041 | rx->startp[0] = s - truebase; |
f722798b |
1042 | rx->endp[0] = s - truebase + rx->minlen; |
a0d0e21e |
1043 | } |
4633a7c4 |
1044 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1045 | RETPUSHYES; |
1046 | |
1047 | nope: |
a0d0e21e |
1048 | ret_no: |
c90c0ff4 |
1049 | if (global && !(pm->op_pmflags & PMf_CONTINUE)) { |
a0d0e21e |
1050 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
1051 | MAGIC* mg = mg_find(TARG, 'g'); |
1052 | if (mg) |
565764a8 |
1053 | mg->mg_len = -1; |
a0d0e21e |
1054 | } |
1055 | } |
4633a7c4 |
1056 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1057 | if (gimme == G_ARRAY) |
1058 | RETURN; |
1059 | RETPUSHNO; |
1060 | } |
1061 | |
1062 | OP * |
864dbfa3 |
1063 | Perl_do_readline(pTHX) |
a0d0e21e |
1064 | { |
1065 | dSP; dTARGETSTACKED; |
1066 | register SV *sv; |
1067 | STRLEN tmplen = 0; |
1068 | STRLEN offset; |
760ac839 |
1069 | PerlIO *fp; |
3280af22 |
1070 | register IO *io = GvIO(PL_last_in_gv); |
533c011a |
1071 | register I32 type = PL_op->op_type; |
54310121 |
1072 | I32 gimme = GIMME_V; |
e79b0511 |
1073 | MAGIC *mg; |
a0d0e21e |
1074 | |
33c27489 |
1075 | if (mg = SvTIED_mg((SV*)PL_last_in_gv, 'q')) { |
e79b0511 |
1076 | PUSHMARK(SP); |
33c27489 |
1077 | XPUSHs(SvTIED_obj((SV*)PL_last_in_gv, mg)); |
e79b0511 |
1078 | PUTBACK; |
1079 | ENTER; |
864dbfa3 |
1080 | call_method("READLINE", gimme); |
e79b0511 |
1081 | LEAVE; |
1082 | SPAGAIN; |
54310121 |
1083 | if (gimme == G_SCALAR) |
1084 | SvSetMagicSV_nosteal(TARG, TOPs); |
e79b0511 |
1085 | RETURN; |
1086 | } |
a0d0e21e |
1087 | fp = Nullfp; |
1088 | if (io) { |
1089 | fp = IoIFP(io); |
1090 | if (!fp) { |
1091 | if (IoFLAGS(io) & IOf_ARGV) { |
1092 | if (IoFLAGS(io) & IOf_START) { |
1093 | IoFLAGS(io) &= ~IOf_START; |
1094 | IoLINES(io) = 0; |
3280af22 |
1095 | if (av_len(GvAVn(PL_last_in_gv)) < 0) { |
9d116dd7 |
1096 | do_open(PL_last_in_gv,"-",1,FALSE,O_RDONLY,0,Nullfp); |
3280af22 |
1097 | sv_setpvn(GvSV(PL_last_in_gv), "-", 1); |
1098 | SvSETMAGIC(GvSV(PL_last_in_gv)); |
a2008d6d |
1099 | fp = IoIFP(io); |
1100 | goto have_fp; |
a0d0e21e |
1101 | } |
1102 | } |
3280af22 |
1103 | fp = nextargv(PL_last_in_gv); |
a0d0e21e |
1104 | if (!fp) { /* Note: fp != IoIFP(io) */ |
3280af22 |
1105 | (void)do_close(PL_last_in_gv, FALSE); /* now it does*/ |
a0d0e21e |
1106 | IoFLAGS(io) |= IOf_START; |
1107 | } |
1108 | } |
1109 | else if (type == OP_GLOB) { |
1110 | SV *tmpcmd = NEWSV(55, 0); |
1111 | SV *tmpglob = POPs; |
1112 | ENTER; |
1113 | SAVEFREESV(tmpcmd); |
1114 | #ifdef VMS /* expand the wildcards right here, rather than opening a pipe, */ |
1115 | /* since spawning off a process is a real performance hit */ |
1116 | { |
1117 | #include <descrip.h> |
1118 | #include <lib$routines.h> |
1119 | #include <nam.h> |
1120 | #include <rmsdef.h> |
1121 | char rslt[NAM$C_MAXRSS+1+sizeof(unsigned short int)] = {'\0','\0'}; |
1122 | char vmsspec[NAM$C_MAXRSS+1]; |
1123 | char *rstr = rslt + sizeof(unsigned short int), *begin, *end, *cp; |
1124 | char tmpfnam[L_tmpnam] = "SYS$SCRATCH:"; |
1125 | $DESCRIPTOR(dfltdsc,"SYS$DISK:[]*.*;"); |
760ac839 |
1126 | PerlIO *tmpfp; |
a0d0e21e |
1127 | STRLEN i; |
1128 | struct dsc$descriptor_s wilddsc |
1129 | = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0}; |
1130 | struct dsc$descriptor_vs rsdsc |
1131 | = {sizeof rslt, DSC$K_DTYPE_VT, DSC$K_CLASS_VS, rslt}; |
1132 | unsigned long int cxt = 0, sts = 0, ok = 1, hasdir = 0, hasver = 0, isunix = 0; |
1133 | |
1134 | /* We could find out if there's an explicit dev/dir or version |
1135 | by peeking into lib$find_file's internal context at |
1136 | ((struct NAM *)((struct FAB *)cxt)->fab$l_nam)->nam$l_fnb |
1137 | but that's unsupported, so I don't want to do it now and |
1138 | have it bite someone in the future. */ |
6ad3d225 |
1139 | strcat(tmpfnam,PerlLIO_tmpnam(NULL)); |
a0d0e21e |
1140 | cp = SvPV(tmpglob,i); |
1141 | for (; i; i--) { |
1142 | if (cp[i] == ';') hasver = 1; |
1143 | if (cp[i] == '.') { |
1144 | if (sts) hasver = 1; |
1145 | else sts = 1; |
1146 | } |
1147 | if (cp[i] == '/') { |
1148 | hasdir = isunix = 1; |
1149 | break; |
748a9306 |
1150 | } |
a0d0e21e |
1151 | if (cp[i] == ']' || cp[i] == '>' || cp[i] == ':') { |
1152 | hasdir = 1; |
1153 | break; |
1154 | } |
1155 | } |
760ac839 |
1156 | if ((tmpfp = PerlIO_open(tmpfnam,"w+","fop=dlt")) != NULL) { |
09b7f37c |
1157 | Stat_t st; |
c6ed36e1 |
1158 | if (!PerlLIO_stat(SvPVX(tmpglob),&st) && S_ISDIR(st.st_mode)) |
09b7f37c |
1159 | ok = ((wilddsc.dsc$a_pointer = tovmspath(SvPVX(tmpglob),vmsspec)) != NULL); |
1160 | else ok = ((wilddsc.dsc$a_pointer = tovmsspec(SvPVX(tmpglob),vmsspec)) != NULL); |
a0d0e21e |
1161 | if (ok) wilddsc.dsc$w_length = (unsigned short int) strlen(wilddsc.dsc$a_pointer); |
1162 | while (ok && ((sts = lib$find_file(&wilddsc,&rsdsc,&cxt, |
1163 | &dfltdsc,NULL,NULL,NULL))&1)) { |
1164 | end = rstr + (unsigned long int) *rslt; |
1165 | if (!hasver) while (*end != ';') end--; |
1166 | *(end++) = '\n'; *end = '\0'; |
1167 | for (cp = rstr; *cp; cp++) *cp = _tolower(*cp); |
1168 | if (hasdir) { |
f86702cc |
1169 | if (isunix) trim_unixpath(rstr,SvPVX(tmpglob),1); |
a0d0e21e |
1170 | begin = rstr; |
1171 | } |
1172 | else { |
1173 | begin = end; |
1174 | while (*(--begin) != ']' && *begin != '>') ; |
1175 | ++begin; |
1176 | } |
760ac839 |
1177 | ok = (PerlIO_puts(tmpfp,begin) != EOF); |
a0d0e21e |
1178 | } |
1179 | if (cxt) (void)lib$find_file_end(&cxt); |
748a9306 |
1180 | if (ok && sts != RMS$_NMF && |
1181 | sts != RMS$_DNF && sts != RMS$_FNF) ok = 0; |
a0d0e21e |
1182 | if (!ok) { |
c07a80fd |
1183 | if (!(sts & 1)) { |
1184 | SETERRNO((sts == RMS$_SYN ? EINVAL : EVMSERR),sts); |
1185 | } |
760ac839 |
1186 | PerlIO_close(tmpfp); |
a0d0e21e |
1187 | fp = NULL; |
1188 | } |
1189 | else { |
760ac839 |
1190 | PerlIO_rewind(tmpfp); |
a0d0e21e |
1191 | IoTYPE(io) = '<'; |
1192 | IoIFP(io) = fp = tmpfp; |
1e422769 |
1193 | IoFLAGS(io) &= ~IOf_UNTAINT; /* maybe redundant */ |
a0d0e21e |
1194 | } |
1195 | } |
1196 | } |
1197 | #else /* !VMS */ |
1198 | #ifdef DOSISH |
67955e0c |
1199 | #ifdef OS2 |
1200 | sv_setpv(tmpcmd, "for a in "); |
1201 | sv_catsv(tmpcmd, tmpglob); |
1202 | sv_catpv(tmpcmd, "; do echo \"$a\\0\\c\"; done |"); |
1203 | #else |
39e571d4 |
1204 | #ifdef DJGPP |
1205 | sv_setpv(tmpcmd, "/dev/dosglob/"); /* File System Extension */ |
1206 | sv_catsv(tmpcmd, tmpglob); |
1207 | #else |
a0d0e21e |
1208 | sv_setpv(tmpcmd, "perlglob "); |
1209 | sv_catsv(tmpcmd, tmpglob); |
1210 | sv_catpv(tmpcmd, " |"); |
39e571d4 |
1211 | #endif /* !DJGPP */ |
67955e0c |
1212 | #endif /* !OS2 */ |
1213 | #else /* !DOSISH */ |
1214 | #if defined(CSH) |
3280af22 |
1215 | sv_setpvn(tmpcmd, PL_cshname, PL_cshlen); |
a0d0e21e |
1216 | sv_catpv(tmpcmd, " -cf 'set nonomatch; glob "); |
1217 | sv_catsv(tmpcmd, tmpglob); |
16d20bd9 |
1218 | sv_catpv(tmpcmd, "' 2>/dev/null |"); |
a0d0e21e |
1219 | #else |
1220 | sv_setpv(tmpcmd, "echo "); |
1221 | sv_catsv(tmpcmd, tmpglob); |
1222 | #if 'z' - 'a' == 25 |
1223 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\012\\012\\012\\012'|"); |
1224 | #else |
1225 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\n\\n\\n\\n'|"); |
1226 | #endif |
1227 | #endif /* !CSH */ |
67955e0c |
1228 | #endif /* !DOSISH */ |
3280af22 |
1229 | (void)do_open(PL_last_in_gv, SvPVX(tmpcmd), SvCUR(tmpcmd), |
9d116dd7 |
1230 | FALSE, O_RDONLY, 0, Nullfp); |
a0d0e21e |
1231 | fp = IoIFP(io); |
1232 | #endif /* !VMS */ |
1233 | LEAVE; |
1234 | } |
1235 | } |
1236 | else if (type == OP_GLOB) |
1237 | SP--; |
af8c498a |
1238 | else if (ckWARN(WARN_IO) /* stdout/stderr or other write fh */ |
1239 | && (IoTYPE(io) == '>' || fp == PerlIO_stdout() |
1240 | || fp == PerlIO_stderr())) |
1241 | { |
1242 | SV* sv = sv_newmortal(); |
1243 | gv_efullname3(sv, PL_last_in_gv, Nullch); |
1244 | Perl_warner(aTHX_ WARN_IO, "Filehandle %s opened only for output", |
1245 | SvPV_nolen(sv)); |
1246 | } |
a0d0e21e |
1247 | } |
1248 | if (!fp) { |
3f4520fe |
1249 | if (ckWARN(WARN_CLOSED) && io && !(IoFLAGS(io) & IOf_START)) { |
1250 | if (type == OP_GLOB) |
af8c498a |
1251 | Perl_warner(aTHX_ WARN_CLOSED, |
1252 | "glob failed (can't start child: %s)", |
1253 | Strerror(errno)); |
1254 | else { |
1255 | SV* sv = sv_newmortal(); |
1256 | gv_efullname3(sv, PL_last_in_gv, Nullch); |
1257 | Perl_warner(aTHX_ WARN_CLOSED, |
1258 | "Read on closed filehandle %s", |
1259 | SvPV_nolen(sv)); |
1260 | } |
3f4520fe |
1261 | } |
54310121 |
1262 | if (gimme == G_SCALAR) { |
a0d0e21e |
1263 | (void)SvOK_off(TARG); |
1264 | PUSHTARG; |
1265 | } |
1266 | RETURN; |
1267 | } |
a2008d6d |
1268 | have_fp: |
54310121 |
1269 | if (gimme == G_SCALAR) { |
a0d0e21e |
1270 | sv = TARG; |
9607fc9c |
1271 | if (SvROK(sv)) |
1272 | sv_unref(sv); |
a0d0e21e |
1273 | (void)SvUPGRADE(sv, SVt_PV); |
1274 | tmplen = SvLEN(sv); /* remember if already alloced */ |
1275 | if (!tmplen) |
1276 | Sv_Grow(sv, 80); /* try short-buffering it */ |
1277 | if (type == OP_RCATLINE) |
1278 | offset = SvCUR(sv); |
1279 | else |
1280 | offset = 0; |
1281 | } |
54310121 |
1282 | else { |
1283 | sv = sv_2mortal(NEWSV(57, 80)); |
1284 | offset = 0; |
1285 | } |
fbad3eb5 |
1286 | |
1287 | /* flip-flop EOF state for a snarfed empty file */ |
1288 | #define SNARF_EOF(gimme,rs,io,sv) \ |
1289 | ((gimme != G_SCALAR || SvCUR(sv) \ |
1290 | || (IoFLAGS(io) & IOf_NOLINE) || IoLINES(io) || !RsSNARF(rs)) \ |
1291 | ? ((IoFLAGS(io) &= ~IOf_NOLINE), TRUE) \ |
1292 | : ((IoFLAGS(io) |= IOf_NOLINE), FALSE)) |
1293 | |
a0d0e21e |
1294 | for (;;) { |
fbad3eb5 |
1295 | if (!sv_gets(sv, fp, offset) |
1296 | && (type == OP_GLOB || SNARF_EOF(gimme, PL_rs, io, sv))) |
1297 | { |
760ac839 |
1298 | PerlIO_clearerr(fp); |
a0d0e21e |
1299 | if (IoFLAGS(io) & IOf_ARGV) { |
3280af22 |
1300 | fp = nextargv(PL_last_in_gv); |
a0d0e21e |
1301 | if (fp) |
1302 | continue; |
3280af22 |
1303 | (void)do_close(PL_last_in_gv, FALSE); |
a0d0e21e |
1304 | IoFLAGS(io) |= IOf_START; |
1305 | } |
1306 | else if (type == OP_GLOB) { |
4eb79ab5 |
1307 | if (!do_close(PL_last_in_gv, FALSE) && ckWARN(WARN_CLOSED)) { |
cea2e8a9 |
1308 | Perl_warner(aTHX_ WARN_CLOSED, |
4eb79ab5 |
1309 | "glob failed (child exited with status %d%s)", |
1310 | STATUS_CURRENT >> 8, |
cf494569 |
1311 | (STATUS_CURRENT & 0x80) ? ", core dumped" : ""); |
4eb79ab5 |
1312 | } |
a0d0e21e |
1313 | } |
54310121 |
1314 | if (gimme == G_SCALAR) { |
a0d0e21e |
1315 | (void)SvOK_off(TARG); |
1316 | PUSHTARG; |
1317 | } |
1318 | RETURN; |
1319 | } |
bbce6d69 |
1320 | /* This should not be marked tainted if the fp is marked clean */ |
1321 | if (!(IoFLAGS(io) & IOf_UNTAINT)) { |
1322 | TAINT; |
1323 | SvTAINTED_on(sv); |
1324 | } |
a0d0e21e |
1325 | IoLINES(io)++; |
71be2cbc |
1326 | SvSETMAGIC(sv); |
a0d0e21e |
1327 | XPUSHs(sv); |
a0d0e21e |
1328 | if (type == OP_GLOB) { |
1329 | char *tmps; |
1330 | |
3280af22 |
1331 | if (SvCUR(sv) > 0 && SvCUR(PL_rs) > 0) { |
c07a80fd |
1332 | tmps = SvEND(sv) - 1; |
3280af22 |
1333 | if (*tmps == *SvPVX(PL_rs)) { |
c07a80fd |
1334 | *tmps = '\0'; |
1335 | SvCUR(sv)--; |
1336 | } |
1337 | } |
a0d0e21e |
1338 | for (tmps = SvPVX(sv); *tmps; tmps++) |
1339 | if (!isALPHA(*tmps) && !isDIGIT(*tmps) && |
1340 | strchr("$&*(){}[]'\";\\|?<>~`", *tmps)) |
1341 | break; |
43384a1a |
1342 | if (*tmps && PerlLIO_lstat(SvPVX(sv), &PL_statbuf) < 0) { |
a0d0e21e |
1343 | (void)POPs; /* Unmatched wildcard? Chuck it... */ |
1344 | continue; |
1345 | } |
1346 | } |
54310121 |
1347 | if (gimme == G_ARRAY) { |
a0d0e21e |
1348 | if (SvLEN(sv) - SvCUR(sv) > 20) { |
1349 | SvLEN_set(sv, SvCUR(sv)+1); |
1350 | Renew(SvPVX(sv), SvLEN(sv), char); |
1351 | } |
1352 | sv = sv_2mortal(NEWSV(58, 80)); |
1353 | continue; |
1354 | } |
54310121 |
1355 | else if (gimme == G_SCALAR && !tmplen && SvLEN(sv) - SvCUR(sv) > 80) { |
a0d0e21e |
1356 | /* try to reclaim a bit of scalar space (only on 1st alloc) */ |
1357 | if (SvCUR(sv) < 60) |
1358 | SvLEN_set(sv, 80); |
1359 | else |
1360 | SvLEN_set(sv, SvCUR(sv)+40); /* allow some slop */ |
1361 | Renew(SvPVX(sv), SvLEN(sv), char); |
1362 | } |
1363 | RETURN; |
1364 | } |
1365 | } |
1366 | |
1367 | PP(pp_enter) |
1368 | { |
4e35701f |
1369 | djSP; |
c09156bb |
1370 | register PERL_CONTEXT *cx; |
533c011a |
1371 | I32 gimme = OP_GIMME(PL_op, -1); |
a0d0e21e |
1372 | |
54310121 |
1373 | if (gimme == -1) { |
1374 | if (cxstack_ix >= 0) |
1375 | gimme = cxstack[cxstack_ix].blk_gimme; |
1376 | else |
1377 | gimme = G_SCALAR; |
1378 | } |
a0d0e21e |
1379 | |
1380 | ENTER; |
1381 | |
1382 | SAVETMPS; |
924508f0 |
1383 | PUSHBLOCK(cx, CXt_BLOCK, SP); |
a0d0e21e |
1384 | |
1385 | RETURN; |
1386 | } |
1387 | |
1388 | PP(pp_helem) |
1389 | { |
4e35701f |
1390 | djSP; |
760ac839 |
1391 | HE* he; |
ae77835f |
1392 | SV **svp; |
a0d0e21e |
1393 | SV *keysv = POPs; |
a0d0e21e |
1394 | HV *hv = (HV*)POPs; |
533c011a |
1395 | U32 lval = PL_op->op_flags & OPf_MOD; |
1396 | U32 defer = PL_op->op_private & OPpLVAL_DEFER; |
be6c24e0 |
1397 | SV *sv; |
a0d0e21e |
1398 | |
ae77835f |
1399 | if (SvTYPE(hv) == SVt_PVHV) { |
1400 | he = hv_fetch_ent(hv, keysv, lval && !defer, 0); |
97fcbf96 |
1401 | svp = he ? &HeVAL(he) : 0; |
ae77835f |
1402 | } |
1403 | else if (SvTYPE(hv) == SVt_PVAV) { |
0ebe0038 |
1404 | if (PL_op->op_private & OPpLVAL_INTRO) |
cea2e8a9 |
1405 | DIE(aTHX_ "Can't localize pseudo-hash element"); |
97fcbf96 |
1406 | svp = avhv_fetch_ent((AV*)hv, keysv, lval && !defer, 0); |
ae77835f |
1407 | } |
c750a3ec |
1408 | else { |
a0d0e21e |
1409 | RETPUSHUNDEF; |
c750a3ec |
1410 | } |
a0d0e21e |
1411 | if (lval) { |
3280af22 |
1412 | if (!svp || *svp == &PL_sv_undef) { |
68dc0745 |
1413 | SV* lv; |
1414 | SV* key2; |
2d8e6c8d |
1415 | if (!defer) { |
1416 | STRLEN n_a; |
cea2e8a9 |
1417 | DIE(aTHX_ PL_no_helem, SvPV(keysv, n_a)); |
2d8e6c8d |
1418 | } |
68dc0745 |
1419 | lv = sv_newmortal(); |
1420 | sv_upgrade(lv, SVt_PVLV); |
1421 | LvTYPE(lv) = 'y'; |
1422 | sv_magic(lv, key2 = newSVsv(keysv), 'y', Nullch, 0); |
1423 | SvREFCNT_dec(key2); /* sv_magic() increments refcount */ |
1424 | LvTARG(lv) = SvREFCNT_inc(hv); |
1425 | LvTARGLEN(lv) = 1; |
1426 | PUSHs(lv); |
1427 | RETURN; |
1428 | } |
533c011a |
1429 | if (PL_op->op_private & OPpLVAL_INTRO) { |
ae77835f |
1430 | if (HvNAME(hv) && isGV(*svp)) |
533c011a |
1431 | save_gp((GV*)*svp, !(PL_op->op_flags & OPf_SPECIAL)); |
5f05dabc |
1432 | else |
161b7d16 |
1433 | save_helem(hv, keysv, svp); |
5f05dabc |
1434 | } |
533c011a |
1435 | else if (PL_op->op_private & OPpDEREF) |
1436 | vivify_ref(*svp, PL_op->op_private & OPpDEREF); |
a0d0e21e |
1437 | } |
3280af22 |
1438 | sv = (svp ? *svp : &PL_sv_undef); |
be6c24e0 |
1439 | /* This makes C<local $tied{foo} = $tied{foo}> possible. |
1440 | * Pushing the magical RHS on to the stack is useless, since |
1441 | * that magic is soon destined to be misled by the local(), |
1442 | * and thus the later pp_sassign() will fail to mg_get() the |
1443 | * old value. This should also cure problems with delayed |
1444 | * mg_get()s. GSAR 98-07-03 */ |
1445 | if (!lval && SvGMAGICAL(sv)) |
1446 | sv = sv_mortalcopy(sv); |
1447 | PUSHs(sv); |
a0d0e21e |
1448 | RETURN; |
1449 | } |
1450 | |
1451 | PP(pp_leave) |
1452 | { |
4e35701f |
1453 | djSP; |
c09156bb |
1454 | register PERL_CONTEXT *cx; |
a0d0e21e |
1455 | register SV **mark; |
1456 | SV **newsp; |
1457 | PMOP *newpm; |
1458 | I32 gimme; |
1459 | |
533c011a |
1460 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e |
1461 | cx = &cxstack[cxstack_ix]; |
3280af22 |
1462 | cx->blk_oldpm = PL_curpm; /* fake block should preserve $1 et al */ |
a0d0e21e |
1463 | } |
1464 | |
1465 | POPBLOCK(cx,newpm); |
1466 | |
533c011a |
1467 | gimme = OP_GIMME(PL_op, -1); |
54310121 |
1468 | if (gimme == -1) { |
1469 | if (cxstack_ix >= 0) |
1470 | gimme = cxstack[cxstack_ix].blk_gimme; |
1471 | else |
1472 | gimme = G_SCALAR; |
1473 | } |
a0d0e21e |
1474 | |
a1f49e72 |
1475 | TAINT_NOT; |
54310121 |
1476 | if (gimme == G_VOID) |
1477 | SP = newsp; |
1478 | else if (gimme == G_SCALAR) { |
1479 | MARK = newsp + 1; |
1480 | if (MARK <= SP) |
1481 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) |
1482 | *MARK = TOPs; |
1483 | else |
1484 | *MARK = sv_mortalcopy(TOPs); |
a0d0e21e |
1485 | else { |
54310121 |
1486 | MEXTEND(mark,0); |
3280af22 |
1487 | *MARK = &PL_sv_undef; |
a0d0e21e |
1488 | } |
54310121 |
1489 | SP = MARK; |
a0d0e21e |
1490 | } |
54310121 |
1491 | else if (gimme == G_ARRAY) { |
a1f49e72 |
1492 | /* in case LEAVE wipes old return values */ |
1493 | for (mark = newsp + 1; mark <= SP; mark++) { |
1494 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) { |
a0d0e21e |
1495 | *mark = sv_mortalcopy(*mark); |
a1f49e72 |
1496 | TAINT_NOT; /* Each item is independent */ |
1497 | } |
1498 | } |
a0d0e21e |
1499 | } |
3280af22 |
1500 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e |
1501 | |
1502 | LEAVE; |
1503 | |
1504 | RETURN; |
1505 | } |
1506 | |
1507 | PP(pp_iter) |
1508 | { |
4e35701f |
1509 | djSP; |
c09156bb |
1510 | register PERL_CONTEXT *cx; |
5f05dabc |
1511 | SV* sv; |
4633a7c4 |
1512 | AV* av; |
a0d0e21e |
1513 | |
924508f0 |
1514 | EXTEND(SP, 1); |
a0d0e21e |
1515 | cx = &cxstack[cxstack_ix]; |
6b35e009 |
1516 | if (CxTYPE(cx) != CXt_LOOP) |
cea2e8a9 |
1517 | DIE(aTHX_ "panic: pp_iter"); |
a0d0e21e |
1518 | |
4633a7c4 |
1519 | av = cx->blk_loop.iterary; |
89ea2908 |
1520 | if (SvTYPE(av) != SVt_PVAV) { |
1521 | /* iterate ($min .. $max) */ |
1522 | if (cx->blk_loop.iterlval) { |
1523 | /* string increment */ |
1524 | register SV* cur = cx->blk_loop.iterlval; |
1525 | STRLEN maxlen; |
1526 | char *max = SvPV((SV*)av, maxlen); |
1527 | if (!SvNIOK(cur) && SvCUR(cur) <= maxlen) { |
eaa5c2d6 |
1528 | #ifndef USE_THREADS /* don't risk potential race */ |
39ca2bb7 |
1529 | if (SvREFCNT(*cx->blk_loop.itervar) == 1 |
1530 | && !SvMAGICAL(*cx->blk_loop.itervar)) |
1531 | { |
eaa5c2d6 |
1532 | /* safe to reuse old SV */ |
1533 | sv_setsv(*cx->blk_loop.itervar, cur); |
1534 | } |
1535 | else |
1536 | #endif |
1537 | { |
1538 | /* we need a fresh SV every time so that loop body sees a |
1539 | * completely new SV for closures/references to work as |
1540 | * they used to */ |
1541 | SvREFCNT_dec(*cx->blk_loop.itervar); |
1542 | *cx->blk_loop.itervar = newSVsv(cur); |
1543 | } |
89ea2908 |
1544 | if (strEQ(SvPVX(cur), max)) |
1545 | sv_setiv(cur, 0); /* terminate next time */ |
1546 | else |
1547 | sv_inc(cur); |
1548 | RETPUSHYES; |
1549 | } |
1550 | RETPUSHNO; |
1551 | } |
1552 | /* integer increment */ |
1553 | if (cx->blk_loop.iterix > cx->blk_loop.itermax) |
1554 | RETPUSHNO; |
7f61b687 |
1555 | |
eaa5c2d6 |
1556 | #ifndef USE_THREADS /* don't risk potential race */ |
39ca2bb7 |
1557 | if (SvREFCNT(*cx->blk_loop.itervar) == 1 |
1558 | && !SvMAGICAL(*cx->blk_loop.itervar)) |
1559 | { |
eaa5c2d6 |
1560 | /* safe to reuse old SV */ |
1561 | sv_setiv(*cx->blk_loop.itervar, cx->blk_loop.iterix++); |
1562 | } |
1563 | else |
1564 | #endif |
1565 | { |
1566 | /* we need a fresh SV every time so that loop body sees a |
1567 | * completely new SV for closures/references to work as they |
1568 | * used to */ |
1569 | SvREFCNT_dec(*cx->blk_loop.itervar); |
1570 | *cx->blk_loop.itervar = newSViv(cx->blk_loop.iterix++); |
1571 | } |
89ea2908 |
1572 | RETPUSHYES; |
1573 | } |
1574 | |
1575 | /* iterate array */ |
3280af22 |
1576 | if (cx->blk_loop.iterix >= (av == PL_curstack ? cx->blk_oldsp : AvFILL(av))) |
4633a7c4 |
1577 | RETPUSHNO; |
a0d0e21e |
1578 | |
7a4c00b4 |
1579 | SvREFCNT_dec(*cx->blk_loop.itervar); |
a0d0e21e |
1580 | |
93965878 |
1581 | if (sv = (SvMAGICAL(av)) |
1582 | ? *av_fetch(av, ++cx->blk_loop.iterix, FALSE) |
1583 | : AvARRAY(av)[++cx->blk_loop.iterix]) |
a0d0e21e |
1584 | SvTEMP_off(sv); |
a0d0e21e |
1585 | else |
3280af22 |
1586 | sv = &PL_sv_undef; |
1587 | if (av != PL_curstack && SvIMMORTAL(sv)) { |
5f05dabc |
1588 | SV *lv = cx->blk_loop.iterlval; |
71be2cbc |
1589 | if (lv && SvREFCNT(lv) > 1) { |
1590 | SvREFCNT_dec(lv); |
1591 | lv = Nullsv; |
1592 | } |
5f05dabc |
1593 | if (lv) |
1594 | SvREFCNT_dec(LvTARG(lv)); |
1595 | else { |
68dc0745 |
1596 | lv = cx->blk_loop.iterlval = NEWSV(26, 0); |
5f05dabc |
1597 | sv_upgrade(lv, SVt_PVLV); |
5f05dabc |
1598 | LvTYPE(lv) = 'y'; |
68dc0745 |
1599 | sv_magic(lv, Nullsv, 'y', Nullch, 0); |
5f05dabc |
1600 | } |
1601 | LvTARG(lv) = SvREFCNT_inc(av); |
1602 | LvTARGOFF(lv) = cx->blk_loop.iterix; |
42718184 |
1603 | LvTARGLEN(lv) = (STRLEN)UV_MAX; |
5f05dabc |
1604 | sv = (SV*)lv; |
1605 | } |
a0d0e21e |
1606 | |
7a4c00b4 |
1607 | *cx->blk_loop.itervar = SvREFCNT_inc(sv); |
a0d0e21e |
1608 | RETPUSHYES; |
1609 | } |
1610 | |
1611 | PP(pp_subst) |
1612 | { |
4e35701f |
1613 | djSP; dTARG; |
a0d0e21e |
1614 | register PMOP *pm = cPMOP; |
1615 | PMOP *rpm = pm; |
1616 | register SV *dstr; |
1617 | register char *s; |
1618 | char *strend; |
1619 | register char *m; |
1620 | char *c; |
1621 | register char *d; |
1622 | STRLEN clen; |
1623 | I32 iters = 0; |
1624 | I32 maxiters; |
1625 | register I32 i; |
1626 | bool once; |
71be2cbc |
1627 | bool rxtainted; |
a0d0e21e |
1628 | char *orig; |
22e551b9 |
1629 | I32 r_flags; |
d9f97599 |
1630 | register REGEXP *rx = pm->op_pmregexp; |
a0d0e21e |
1631 | STRLEN len; |
1632 | int force_on_match = 0; |
3280af22 |
1633 | I32 oldsave = PL_savestack_ix; |
c277df42 |
1634 | I32 update_minmatch = 1; |
a0d0e21e |
1635 | |
5cd24f17 |
1636 | /* known replacement string? */ |
1637 | dstr = (pm->op_pmflags & PMf_CONST) ? POPs : Nullsv; |
533c011a |
1638 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e |
1639 | TARG = POPs; |
1640 | else { |
54b9620d |
1641 | TARG = DEFSV; |
a0d0e21e |
1642 | EXTEND(SP,1); |
8ec5e241 |
1643 | } |
68dc0745 |
1644 | if (SvREADONLY(TARG) |
1645 | || (SvTYPE(TARG) > SVt_PVLV |
1646 | && !(SvTYPE(TARG) == SVt_PVGV && SvFAKE(TARG)))) |
cea2e8a9 |
1647 | Perl_croak(aTHX_ PL_no_modify); |
8ec5e241 |
1648 | PUTBACK; |
1649 | |
a0d0e21e |
1650 | s = SvPV(TARG, len); |
68dc0745 |
1651 | if (!SvPOKp(TARG) || SvTYPE(TARG) == SVt_PVGV) |
a0d0e21e |
1652 | force_on_match = 1; |
b3eb6a9b |
1653 | rxtainted = ((pm->op_pmdynflags & PMdf_TAINTED) || |
3280af22 |
1654 | (PL_tainted && (pm->op_pmflags & PMf_RETAINT))); |
1655 | if (PL_tainted) |
b3eb6a9b |
1656 | rxtainted |= 2; |
9212bbba |
1657 | TAINT_NOT; |
a0d0e21e |
1658 | |
1659 | force_it: |
1660 | if (!pm || !s) |
cea2e8a9 |
1661 | DIE(aTHX_ "panic: do_subst"); |
a0d0e21e |
1662 | |
1663 | strend = s + len; |
2beec16e |
1664 | maxiters = 2*(strend - s) + 10; /* We can match twice at each |
1665 | position, once with zero-length, |
1666 | second time with non-zero. */ |
a0d0e21e |
1667 | |
3280af22 |
1668 | if (!rx->prelen && PL_curpm) { |
1669 | pm = PL_curpm; |
d9f97599 |
1670 | rx = pm->op_pmregexp; |
a0d0e21e |
1671 | } |
22e551b9 |
1672 | r_flags = (rx->nparens || SvTEMP(TARG) || PL_sawampersand) |
9d080a66 |
1673 | ? REXEC_COPY_STR : 0; |
f722798b |
1674 | if (SvSCREAM(TARG)) |
22e551b9 |
1675 | r_flags |= REXEC_SCREAM; |
a0d0e21e |
1676 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
3280af22 |
1677 | SAVEINT(PL_multiline); |
1678 | PL_multiline = pm->op_pmflags & PMf_MULTILINE; |
a0d0e21e |
1679 | } |
1680 | orig = m = s; |
f722798b |
1681 | if (rx->reganch & RE_USE_INTUIT) { |
1682 | s = CALLREG_INTUIT_START(aTHX_ rx, TARG, s, strend, r_flags, NULL); |
1683 | |
1684 | if (!s) |
1685 | goto nope; |
1686 | /* How to do it in subst? */ |
1687 | /* if ( (rx->reganch & ROPT_CHECK_ALL) |
1688 | && !PL_sawampersand |
1689 | && ((rx->reganch & ROPT_NOSCAN) |
1690 | || !((rx->reganch & RE_INTUIT_TAIL) |
1691 | && (r_flags & REXEC_SCREAM)))) |
1692 | goto yup; |
1693 | */ |
a0d0e21e |
1694 | } |
71be2cbc |
1695 | |
1696 | /* only replace once? */ |
a0d0e21e |
1697 | once = !(rpm->op_pmflags & PMf_GLOBAL); |
71be2cbc |
1698 | |
1699 | /* known replacement string? */ |
5cd24f17 |
1700 | c = dstr ? SvPV(dstr, clen) : Nullch; |
71be2cbc |
1701 | |
1702 | /* can do inplace substitution? */ |
22e551b9 |
1703 | if (c && clen <= rx->minlen && (once || !(r_flags & REXEC_COPY_STR)) |
d9f97599 |
1704 | && !(rx->reganch & ROPT_LOOKBEHIND_SEEN)) { |
f722798b |
1705 | if (!CALLREGEXEC(aTHX_ rx, s, strend, orig, 0, TARG, NULL, |
1706 | r_flags | REXEC_CHECKED)) |
1707 | { |
8ec5e241 |
1708 | SPAGAIN; |
3280af22 |
1709 | PUSHs(&PL_sv_no); |
71be2cbc |
1710 | LEAVE_SCOPE(oldsave); |
1711 | RETURN; |
1712 | } |
1713 | if (force_on_match) { |
1714 | force_on_match = 0; |
1715 | s = SvPV_force(TARG, len); |
1716 | goto force_it; |
1717 | } |
71be2cbc |
1718 | d = s; |
3280af22 |
1719 | PL_curpm = pm; |
71be2cbc |
1720 | SvSCREAM_off(TARG); /* disable possible screamer */ |
1721 | if (once) { |
48c036b1 |
1722 | rxtainted |= RX_MATCH_TAINTED(rx); |
cf93c79d |
1723 | m = orig + rx->startp[0]; |
1724 | d = orig + rx->endp[0]; |
71be2cbc |
1725 | s = orig; |
1726 | if (m - s > strend - d) { /* faster to shorten from end */ |
1727 | if (clen) { |
1728 | Copy(c, m, clen, char); |
1729 | m += clen; |
a0d0e21e |
1730 | } |
71be2cbc |
1731 | i = strend - d; |
1732 | if (i > 0) { |
1733 | Move(d, m, i, char); |
1734 | m += i; |
a0d0e21e |
1735 | } |
71be2cbc |
1736 | *m = '\0'; |
1737 | SvCUR_set(TARG, m - s); |
1738 | } |
1739 | /*SUPPRESS 560*/ |
1740 | else if (i = m - s) { /* faster from front */ |
1741 | d -= clen; |
1742 | m = d; |
1743 | sv_chop(TARG, d-i); |
1744 | s += i; |
1745 | while (i--) |
1746 | *--d = *--s; |
1747 | if (clen) |
1748 | Copy(c, m, clen, char); |
1749 | } |
1750 | else if (clen) { |
1751 | d -= clen; |
1752 | sv_chop(TARG, d); |
1753 | Copy(c, d, clen, char); |
1754 | } |
1755 | else { |
1756 | sv_chop(TARG, d); |
1757 | } |
48c036b1 |
1758 | TAINT_IF(rxtainted & 1); |
8ec5e241 |
1759 | SPAGAIN; |
3280af22 |
1760 | PUSHs(&PL_sv_yes); |
71be2cbc |
1761 | } |
1762 | else { |
71be2cbc |
1763 | do { |
1764 | if (iters++ > maxiters) |
cea2e8a9 |
1765 | DIE(aTHX_ "Substitution loop"); |
d9f97599 |
1766 | rxtainted |= RX_MATCH_TAINTED(rx); |
cf93c79d |
1767 | m = rx->startp[0] + orig; |
71be2cbc |
1768 | /*SUPPRESS 560*/ |
1769 | if (i = m - s) { |
1770 | if (s != d) |
1771 | Move(s, d, i, char); |
1772 | d += i; |
a0d0e21e |
1773 | } |
71be2cbc |
1774 | if (clen) { |
1775 | Copy(c, d, clen, char); |
1776 | d += clen; |
1777 | } |
cf93c79d |
1778 | s = rx->endp[0] + orig; |
cea2e8a9 |
1779 | } while (CALLREGEXEC(aTHX_ rx, s, strend, orig, s == m, |
f722798b |
1780 | TARG, NULL, |
1781 | /* don't match same null twice */ |
1782 | REXEC_NOT_FIRST|REXEC_IGNOREPOS)); |
71be2cbc |
1783 | if (s != d) { |
1784 | i = strend - s; |
1785 | SvCUR_set(TARG, d - SvPVX(TARG) + i); |
1786 | Move(s, d, i+1, char); /* include the NUL */ |
a0d0e21e |
1787 | } |
48c036b1 |
1788 | TAINT_IF(rxtainted & 1); |
8ec5e241 |
1789 | SPAGAIN; |
71be2cbc |
1790 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
a0d0e21e |
1791 | } |
71be2cbc |
1792 | (void)SvPOK_only(TARG); |
48c036b1 |
1793 | TAINT_IF(rxtainted); |
8ec5e241 |
1794 | if (SvSMAGICAL(TARG)) { |
1795 | PUTBACK; |
1796 | mg_set(TARG); |
1797 | SPAGAIN; |
1798 | } |
9212bbba |
1799 | SvTAINT(TARG); |
71be2cbc |
1800 | LEAVE_SCOPE(oldsave); |
1801 | RETURN; |
a0d0e21e |
1802 | } |
71be2cbc |
1803 | |
f722798b |
1804 | if (CALLREGEXEC(aTHX_ rx, s, strend, orig, 0, TARG, NULL, |
1805 | r_flags | REXEC_CHECKED)) |
1806 | { |
a0d0e21e |
1807 | if (force_on_match) { |
1808 | force_on_match = 0; |
1809 | s = SvPV_force(TARG, len); |
1810 | goto force_it; |
1811 | } |
48c036b1 |
1812 | rxtainted |= RX_MATCH_TAINTED(rx); |
8ec5e241 |
1813 | dstr = NEWSV(25, len); |
a0d0e21e |
1814 | sv_setpvn(dstr, m, s-m); |
3280af22 |
1815 | PL_curpm = pm; |
a0d0e21e |
1816 | if (!c) { |
c09156bb |
1817 | register PERL_CONTEXT *cx; |
8ec5e241 |
1818 | SPAGAIN; |
a0d0e21e |
1819 | PUSHSUBST(cx); |
1820 | RETURNOP(cPMOP->op_pmreplroot); |
1821 | } |
cf93c79d |
1822 | r_flags |= REXEC_IGNOREPOS | REXEC_NOT_FIRST; |
a0d0e21e |
1823 | do { |
1824 | if (iters++ > maxiters) |
cea2e8a9 |
1825 | DIE(aTHX_ "Substitution loop"); |
d9f97599 |
1826 | rxtainted |= RX_MATCH_TAINTED(rx); |
cf93c79d |
1827 | if (RX_MATCH_COPIED(rx) && rx->subbeg != orig) { |
a0d0e21e |
1828 | m = s; |
1829 | s = orig; |
cf93c79d |
1830 | orig = rx->subbeg; |
a0d0e21e |
1831 | s = orig + (m - s); |
1832 | strend = s + (strend - m); |
1833 | } |
cf93c79d |
1834 | m = rx->startp[0] + orig; |
a0d0e21e |
1835 | sv_catpvn(dstr, s, m-s); |
cf93c79d |
1836 | s = rx->endp[0] + orig; |
a0d0e21e |
1837 | if (clen) |
1838 | sv_catpvn(dstr, c, clen); |
1839 | if (once) |
1840 | break; |
cea2e8a9 |
1841 | } while (CALLREGEXEC(aTHX_ rx, s, strend, orig, s == m, TARG, NULL, r_flags)); |
a0d0e21e |
1842 | sv_catpvn(dstr, s, strend - s); |
748a9306 |
1843 | |
4633a7c4 |
1844 | (void)SvOOK_off(TARG); |
cb0b1708 |
1845 | Safefree(SvPVX(TARG)); |
748a9306 |
1846 | SvPVX(TARG) = SvPVX(dstr); |
1847 | SvCUR_set(TARG, SvCUR(dstr)); |
1848 | SvLEN_set(TARG, SvLEN(dstr)); |
1849 | SvPVX(dstr) = 0; |
1850 | sv_free(dstr); |
1851 | |
48c036b1 |
1852 | TAINT_IF(rxtainted & 1); |
f878fbec |
1853 | SPAGAIN; |
48c036b1 |
1854 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
1855 | |
a0d0e21e |
1856 | (void)SvPOK_only(TARG); |
48c036b1 |
1857 | TAINT_IF(rxtainted); |
a0d0e21e |
1858 | SvSETMAGIC(TARG); |
9212bbba |
1859 | SvTAINT(TARG); |
4633a7c4 |
1860 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1861 | RETURN; |
1862 | } |
5cd24f17 |
1863 | goto ret_no; |
a0d0e21e |
1864 | |
1865 | nope: |
8ec5e241 |
1866 | ret_no: |
1867 | SPAGAIN; |
3280af22 |
1868 | PUSHs(&PL_sv_no); |
4633a7c4 |
1869 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1870 | RETURN; |
1871 | } |
1872 | |
1873 | PP(pp_grepwhile) |
1874 | { |
4e35701f |
1875 | djSP; |
a0d0e21e |
1876 | |
1877 | if (SvTRUEx(POPs)) |
3280af22 |
1878 | PL_stack_base[PL_markstack_ptr[-1]++] = PL_stack_base[*PL_markstack_ptr]; |
1879 | ++*PL_markstack_ptr; |
a0d0e21e |
1880 | LEAVE; /* exit inner scope */ |
1881 | |
1882 | /* All done yet? */ |
3280af22 |
1883 | if (PL_stack_base + *PL_markstack_ptr > SP) { |
a0d0e21e |
1884 | I32 items; |
54310121 |
1885 | I32 gimme = GIMME_V; |
a0d0e21e |
1886 | |
1887 | LEAVE; /* exit outer scope */ |
1888 | (void)POPMARK; /* pop src */ |
3280af22 |
1889 | items = --*PL_markstack_ptr - PL_markstack_ptr[-1]; |
a0d0e21e |
1890 | (void)POPMARK; /* pop dst */ |
3280af22 |
1891 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
54310121 |
1892 | if (gimme == G_SCALAR) { |
a0d0e21e |
1893 | dTARGET; |
1894 | XPUSHi(items); |
a0d0e21e |
1895 | } |
54310121 |
1896 | else if (gimme == G_ARRAY) |
1897 | SP += items; |
a0d0e21e |
1898 | RETURN; |
1899 | } |
1900 | else { |
1901 | SV *src; |
1902 | |
1903 | ENTER; /* enter inner scope */ |
3280af22 |
1904 | SAVESPTR(PL_curpm); |
a0d0e21e |
1905 | |
3280af22 |
1906 | src = PL_stack_base[*PL_markstack_ptr]; |
a0d0e21e |
1907 | SvTEMP_off(src); |
54b9620d |
1908 | DEFSV = src; |
a0d0e21e |
1909 | |
1910 | RETURNOP(cLOGOP->op_other); |
1911 | } |
1912 | } |
1913 | |
1914 | PP(pp_leavesub) |
1915 | { |
4e35701f |
1916 | djSP; |
a0d0e21e |
1917 | SV **mark; |
1918 | SV **newsp; |
1919 | PMOP *newpm; |
1920 | I32 gimme; |
c09156bb |
1921 | register PERL_CONTEXT *cx; |
f86702cc |
1922 | struct block_sub cxsub; |
a0d0e21e |
1923 | |
1924 | POPBLOCK(cx,newpm); |
f86702cc |
1925 | POPSUB1(cx); /* Delay POPSUB2 until stack values are safe */ |
1926 | |
a1f49e72 |
1927 | TAINT_NOT; |
a0d0e21e |
1928 | if (gimme == G_SCALAR) { |
1929 | MARK = newsp + 1; |
a29cdaf0 |
1930 | if (MARK <= SP) { |
1931 | if (cxsub.cv && CvDEPTH(cxsub.cv) > 1) { |
1932 | if (SvTEMP(TOPs)) { |
1933 | *MARK = SvREFCNT_inc(TOPs); |
1934 | FREETMPS; |
1935 | sv_2mortal(*MARK); |
cd06dffe |
1936 | } |
1937 | else { |
a29cdaf0 |
1938 | FREETMPS; |
1939 | *MARK = sv_mortalcopy(TOPs); |
1940 | } |
cd06dffe |
1941 | } |
1942 | else |
a29cdaf0 |
1943 | *MARK = SvTEMP(TOPs) ? TOPs : sv_mortalcopy(TOPs); |
cd06dffe |
1944 | } |
1945 | else { |
f86702cc |
1946 | MEXTEND(MARK, 0); |
3280af22 |
1947 | *MARK = &PL_sv_undef; |
a0d0e21e |
1948 | } |
1949 | SP = MARK; |
1950 | } |
54310121 |
1951 | else if (gimme == G_ARRAY) { |
f86702cc |
1952 | for (MARK = newsp + 1; MARK <= SP; MARK++) { |
a1f49e72 |
1953 | if (!SvTEMP(*MARK)) { |
f86702cc |
1954 | *MARK = sv_mortalcopy(*MARK); |
a1f49e72 |
1955 | TAINT_NOT; /* Each item is independent */ |
1956 | } |
f86702cc |
1957 | } |
a0d0e21e |
1958 | } |
f86702cc |
1959 | PUTBACK; |
1960 | |
1961 | POPSUB2(); /* Stack values are safe: release CV and @_ ... */ |
3280af22 |
1962 | PL_curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e |
1963 | |
1964 | LEAVE; |
a0d0e21e |
1965 | return pop_return(); |
1966 | } |
1967 | |
cd06dffe |
1968 | /* This duplicates the above code because the above code must not |
1969 | * get any slower by more conditions */ |
1970 | PP(pp_leavesublv) |
1971 | { |
1972 | djSP; |
1973 | SV **mark; |
1974 | SV **newsp; |
1975 | PMOP *newpm; |
1976 | I32 gimme; |
1977 | register PERL_CONTEXT *cx; |
1978 | struct block_sub cxsub; |
1979 | |
1980 | POPBLOCK(cx,newpm); |
1981 | POPSUB1(cx); /* Delay POPSUB2 until stack values are safe */ |
1982 | |
1983 | TAINT_NOT; |
1984 | |
1985 | if (cx->blk_sub.lval & OPpENTERSUB_INARGS) { |
1986 | /* We are an argument to a function or grep(). |
1987 | * This kind of lvalueness was legal before lvalue |
1988 | * subroutines too, so be backward compatible: |
1989 | * cannot report errors. */ |
1990 | |
1991 | /* Scalar context *is* possible, on the LHS of -> only, |
1992 | * as in f()->meth(). But this is not an lvalue. */ |
1993 | if (gimme == G_SCALAR) |
1994 | goto temporise; |
1995 | if (gimme == G_ARRAY) { |
1996 | if (!CvLVALUE(cxsub.cv)) |
1997 | goto temporise_array; |
1998 | EXTEND_MORTAL(SP - newsp); |
1999 | for (mark = newsp + 1; mark <= SP; mark++) { |
2000 | if (SvTEMP(*mark)) |
2001 | /* empty */ ; |
2002 | else if (SvFLAGS(*mark) & (SVs_PADTMP | SVf_READONLY)) |
2003 | *mark = sv_mortalcopy(*mark); |
2004 | else { |
2005 | /* Can be a localized value subject to deletion. */ |
2006 | PL_tmps_stack[++PL_tmps_ix] = *mark; |
2007 | SvREFCNT_inc(*mark); |
2008 | } |
2009 | } |
2010 | } |
2011 | } |
2012 | else if (cx->blk_sub.lval) { /* Leave it as it is if we can. */ |
2013 | /* Here we go for robustness, not for speed, so we change all |
2014 | * the refcounts so the caller gets a live guy. Cannot set |
2015 | * TEMP, so sv_2mortal is out of question. */ |
2016 | if (!CvLVALUE(cxsub.cv)) |
2017 | Perl_croak(aTHX_ "Can't modify non-lvalue subroutine call"); |
2018 | if (gimme == G_SCALAR) { |
2019 | MARK = newsp + 1; |
2020 | EXTEND_MORTAL(1); |
2021 | if (MARK == SP) { |
2022 | if (SvFLAGS(TOPs) & (SVs_TEMP | SVs_PADTMP | SVf_READONLY)) |
2023 | Perl_croak(aTHX_ "Can't return a %s from lvalue subroutine", |
2024 | SvREADONLY(TOPs) ? "readonly value" : "temporary"); |
2025 | else { /* Can be a localized value |
2026 | * subject to deletion. */ |
2027 | PL_tmps_stack[++PL_tmps_ix] = *mark; |
2028 | SvREFCNT_inc(*mark); |
2029 | } |
2030 | } |
2031 | else /* Should not happen? */ |
2032 | Perl_croak(aTHX_ "%s returned from lvalue subroutine in scalar context", |
2033 | (MARK > SP ? "Empty array" : "Array")); |
2034 | SP = MARK; |
2035 | } |
2036 | else if (gimme == G_ARRAY) { |
2037 | EXTEND_MORTAL(SP - newsp); |
2038 | for (mark = newsp + 1; mark <= SP; mark++) { |
2039 | if (SvFLAGS(*mark) & (SVs_TEMP | SVs_PADTMP | SVf_READONLY)) |
2040 | /* Might be flattened array after $#array = */ |
2041 | Perl_croak(aTHX_ "Can't return %s from lvalue subroutine", |
2042 | (*mark != &PL_sv_undef) |
2043 | ? (SvREADONLY(TOPs) |
2044 | ? "a readonly value" : "a temporary") |
2045 | : "an uninitialized value"); |
2046 | else { |
2047 | mortalize: |
2048 | /* Can be a localized value subject to deletion. */ |
2049 | PL_tmps_stack[++PL_tmps_ix] = *mark; |
2050 | SvREFCNT_inc(*mark); |
2051 | } |
2052 | } |
2053 | } |
2054 | } |
2055 | else { |
2056 | if (gimme == G_SCALAR) { |
2057 | temporise: |
2058 | MARK = newsp + 1; |
2059 | if (MARK <= SP) { |
2060 | if (cxsub.cv && CvDEPTH(cxsub.cv) > 1) { |
2061 | if (SvTEMP(TOPs)) { |
2062 | *MARK = SvREFCNT_inc(TOPs); |
2063 | FREETMPS; |
2064 | sv_2mortal(*MARK); |
2065 | } |
2066 | else { |
2067 | FREETMPS; |
2068 | *MARK = sv_mortalcopy(TOPs); |
2069 | } |
2070 | } |
2071 | else |
2072 | *MARK = SvTEMP(TOPs) ? TOPs : sv_mortalcopy(TOPs); |
2073 | } |
2074 | else { |
2075 | MEXTEND(MARK, 0); |
2076 | *MARK = &PL_sv_undef; |
2077 | } |
2078 | SP = MARK; |
2079 | } |
2080 | else if (gimme == G_ARRAY) { |
2081 | temporise_array: |
2082 | for (MARK = newsp + 1; MARK <= SP; MARK++) { |
2083 | if (!SvTEMP(*MARK)) { |
2084 | *MARK = sv_mortalcopy(*MARK); |
2085 | TAINT_NOT; /* Each item is independent */ |
2086 | } |
2087 | } |
2088 | } |
2089 | } |
2090 | PUTBACK; |
2091 | |
2092 | POPSUB2(); /* Stack values are safe: release CV and @_ ... */ |
2093 | PL_curpm = newpm; /* ... and pop $1 et al */ |
2094 | |
2095 | LEAVE; |
2096 | return pop_return(); |
2097 | } |
2098 | |
2099 | |
76e3520e |
2100 | STATIC CV * |
cea2e8a9 |
2101 | S_get_db_sub(pTHX_ SV **svp, CV *cv) |
3de9ffa1 |
2102 | { |
2103 | dTHR; |
3280af22 |
2104 | SV *dbsv = GvSV(PL_DBsub); |
491527d0 |
2105 | |
2106 | if (!PERLDB_SUB_NN) { |
2107 | GV *gv = CvGV(cv); |
2108 | |
2109 | save_item(dbsv); |
2110 | if ( (CvFLAGS(cv) & (CVf_ANON | CVf_CLONED)) |
2111 | || strEQ(GvNAME(gv), "END") |
2112 | || ((GvCV(gv) != cv) && /* Could be imported, and old sub redefined. */ |
2113 | !( (SvTYPE(*svp) == SVt_PVGV) && (GvCV((GV*)*svp) == cv) |
2114 | && (gv = (GV*)*svp) ))) { |
2115 | /* Use GV from the stack as a fallback. */ |
2116 | /* GV is potentially non-unique, or contain different CV. */ |
2117 | sv_setsv(dbsv, newRV((SV*)cv)); |
2118 | } |
2119 | else { |
2120 | gv_efullname3(dbsv, gv, Nullch); |
2121 | } |
3de9ffa1 |
2122 | } |
2123 | else { |
491527d0 |
2124 | SvUPGRADE(dbsv, SVt_PVIV); |
2125 | SvIOK_on(dbsv); |
2126 | SAVEIV(SvIVX(dbsv)); |
5bc28da9 |
2127 | SvIVX(dbsv) = PTR2IV(cv); /* Do it the quickest way */ |
3de9ffa1 |
2128 | } |
491527d0 |
2129 | |
3de9ffa1 |
2130 | if (CvXSUB(cv)) |
3280af22 |
2131 | PL_curcopdb = PL_curcop; |
2132 | cv = GvCV(PL_DBsub); |
3de9ffa1 |
2133 | return cv; |
2134 | } |
2135 | |
a0d0e21e |
2136 | PP(pp_entersub) |
2137 | { |
4e35701f |
2138 | djSP; dPOPss; |
a0d0e21e |
2139 | GV *gv; |
2140 | HV *stash; |
2141 | register CV *cv; |
c09156bb |
2142 | register PERL_CONTEXT *cx; |
5d94fbed |
2143 | I32 gimme; |
533c011a |
2144 | bool hasargs = (PL_op->op_flags & OPf_STACKED) != 0; |
a0d0e21e |
2145 | |
2146 | if (!sv) |
cea2e8a9 |
2147 | DIE(aTHX_ "Not a CODE reference"); |
a0d0e21e |
2148 | switch (SvTYPE(sv)) { |
2149 | default: |
2150 | if (!SvROK(sv)) { |
748a9306 |
2151 | char *sym; |
2d8e6c8d |
2152 | STRLEN n_a; |
748a9306 |
2153 | |
3280af22 |
2154 | if (sv == &PL_sv_yes) { /* unfound import, ignore */ |
fb73857a |
2155 | if (hasargs) |
3280af22 |
2156 | SP = PL_stack_base + POPMARK; |
a0d0e21e |
2157 | RETURN; |
fb73857a |
2158 | } |
15ff848f |
2159 | if (SvGMAGICAL(sv)) { |
2160 | mg_get(sv); |
2161 | sym = SvPOKp(sv) ? SvPVX(sv) : Nullch; |
2162 | } |
2163 | else |
2d8e6c8d |
2164 | sym = SvPV(sv, n_a); |
15ff848f |
2165 | if (!sym) |
cea2e8a9 |
2166 | DIE(aTHX_ PL_no_usym, "a subroutine"); |
533c011a |
2167 | if (PL_op->op_private & HINT_STRICT_REFS) |
cea2e8a9 |
2168 | DIE(aTHX_ PL_no_symref, sym, "a subroutine"); |
864dbfa3 |
2169 | cv = get_cv(sym, TRUE); |
a0d0e21e |
2170 | break; |
2171 | } |
f5284f61 |
2172 | { |
2173 | SV **sp = &sv; /* Used in tryAMAGICunDEREF macro. */ |
2174 | tryAMAGICunDEREF(to_cv); |
2175 | } |
a0d0e21e |
2176 | cv = (CV*)SvRV(sv); |
2177 | if (SvTYPE(cv) == SVt_PVCV) |
2178 | break; |
2179 | /* FALL THROUGH */ |
2180 | case SVt_PVHV: |
2181 | case SVt_PVAV: |
cea2e8a9 |
2182 | DIE(aTHX_ "Not a CODE reference"); |
a0d0e21e |
2183 | case SVt_PVCV: |
2184 | cv = (CV*)sv; |
2185 | break; |
2186 | case SVt_PVGV: |
8ebc5c01 |
2187 | if (!(cv = GvCVu((GV*)sv))) |
f6ec51f7 |
2188 | cv = sv_2cv(sv, &stash, &gv, FALSE); |
2189 | if (!cv) { |
2190 | ENTER; |
2191 | SAVETMPS; |
2192 | goto try_autoload; |
2193 | } |
2194 | break; |
a0d0e21e |
2195 | } |
2196 | |
2197 | ENTER; |
2198 | SAVETMPS; |
2199 | |
2200 | retry: |
a0d0e21e |
2201 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
44a8e56a |
2202 | GV* autogv; |
22239a37 |
2203 | SV* sub_name; |
44a8e56a |
2204 | |
2205 | /* anonymous or undef'd function leaves us no recourse */ |
2206 | if (CvANON(cv) || !(gv = CvGV(cv))) |
cea2e8a9 |
2207 | DIE(aTHX_ "Undefined subroutine called"); |
67caa1fe |
2208 | |
44a8e56a |
2209 | /* autoloaded stub? */ |
2210 | if (cv != GvCV(gv)) { |
2211 | cv = GvCV(gv); |
a0d0e21e |
2212 | } |
44a8e56a |
2213 | /* should call AUTOLOAD now? */ |
67caa1fe |
2214 | else { |
f6ec51f7 |
2215 | try_autoload: |
2216 | if ((autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), |
2217 | FALSE))) |
2218 | { |
2219 | cv = GvCV(autogv); |
2220 | } |
2221 | /* sorry */ |
2222 | else { |
2223 | sub_name = sv_newmortal(); |
2224 | gv_efullname3(sub_name, gv, Nullch); |
cea2e8a9 |
2225 | DIE(aTHX_ "Undefined subroutine &%s called", SvPVX(sub_name)); |
f6ec51f7 |
2226 | } |
67caa1fe |
2227 | } |
2228 | if (!cv) |
cea2e8a9 |
2229 | DIE(aTHX_ "Not a CODE reference"); |
67caa1fe |
2230 | goto retry; |
a0d0e21e |
2231 | } |
2232 | |
54310121 |
2233 | gimme = GIMME_V; |
67caa1fe |
2234 | if ((PL_op->op_private & OPpENTERSUB_DB) && GvCV(PL_DBsub) && !CvNODEBUG(cv)) { |
4f01c5a5 |
2235 | cv = get_db_sub(&sv, cv); |
67caa1fe |
2236 | if (!cv) |
cea2e8a9 |
2237 | DIE(aTHX_ "No DBsub routine"); |
67caa1fe |
2238 | } |
a0d0e21e |
2239 | |
11343788 |
2240 | #ifdef USE_THREADS |
3de9ffa1 |
2241 | /* |
2242 | * First we need to check if the sub or method requires locking. |
458fb581 |
2243 | * If so, we gain a lock on the CV, the first argument or the |
2244 | * stash (for static methods), as appropriate. This has to be |
2245 | * inline because for FAKE_THREADS, COND_WAIT inlines code to |
2246 | * reschedule by returning a new op. |
3de9ffa1 |
2247 | */ |
11343788 |
2248 | MUTEX_LOCK(CvMUTEXP(cv)); |
77a005ab |
2249 | if (CvFLAGS(cv) & CVf_LOCKED) { |
2250 | MAGIC *mg; |
2251 | if (CvFLAGS(cv) & CVf_METHOD) { |
533c011a |
2252 | if (SP > PL_stack_base + TOPMARK) |
2253 | sv = *(PL_stack_base + TOPMARK + 1); |
77a005ab |
2254 | else { |
13e08037 |
2255 | AV *av = (AV*)PL_curpad[0]; |
2256 | if (hasargs || !av || AvFILLp(av) < 0 |
2257 | || !(sv = AvARRAY(av)[0])) |
2258 | { |
2259 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
cea2e8a9 |
2260 | Perl_croak(aTHX_ "no argument for locked method call"); |
13e08037 |
2261 | } |
77a005ab |
2262 | } |
2263 | if (SvROK(sv)) |
2264 | sv = SvRV(sv); |
458fb581 |
2265 | else { |
2266 | STRLEN len; |
2267 | char *stashname = SvPV(sv, len); |
2268 | sv = (SV*)gv_stashpvn(stashname, len, TRUE); |
2269 | } |
77a005ab |
2270 | } |
2271 | else { |
2272 | sv = (SV*)cv; |
2273 | } |
2274 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
2275 | mg = condpair_magic(sv); |
2276 | MUTEX_LOCK(MgMUTEXP(mg)); |
2277 | if (MgOWNER(mg) == thr) |
2278 | MUTEX_UNLOCK(MgMUTEXP(mg)); |
2279 | else { |
2280 | while (MgOWNER(mg)) |
2281 | COND_WAIT(MgOWNERCONDP(mg), MgMUTEXP(mg)); |
2282 | MgOWNER(mg) = thr; |
8b73bbec |
2283 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), "%p: pp_entersub lock %p\n", |
1fd28e87 |
2284 | thr, sv);) |
77a005ab |
2285 | MUTEX_UNLOCK(MgMUTEXP(mg)); |
51371543 |
2286 | SAVEDESTRUCTOR(Perl_unlock_condpair, sv); |
11343788 |
2287 | } |
77a005ab |
2288 | MUTEX_LOCK(CvMUTEXP(cv)); |
11343788 |
2289 | } |
3de9ffa1 |
2290 | /* |
2291 | * Now we have permission to enter the sub, we must distinguish |
2292 | * four cases. (0) It's an XSUB (in which case we don't care |
2293 | * about ownership); (1) it's ours already (and we're recursing); |
2294 | * (2) it's free (but we may already be using a cached clone); |
2295 | * (3) another thread owns it. Case (1) is easy: we just use it. |
2296 | * Case (2) means we look for a clone--if we have one, use it |
2297 | * otherwise grab ownership of cv. Case (3) means we look for a |
2298 | * clone (for non-XSUBs) and have to create one if we don't |
2299 | * already have one. |
2300 | * Why look for a clone in case (2) when we could just grab |
2301 | * ownership of cv straight away? Well, we could be recursing, |
2302 | * i.e. we originally tried to enter cv while another thread |
2303 | * owned it (hence we used a clone) but it has been freed up |
2304 | * and we're now recursing into it. It may or may not be "better" |
2305 | * to use the clone but at least CvDEPTH can be trusted. |
2306 | */ |
2307 | if (CvOWNER(cv) == thr || CvXSUB(cv)) |
2308 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
11343788 |
2309 | else { |
3de9ffa1 |
2310 | /* Case (2) or (3) */ |
2311 | SV **svp; |
2312 | |
11343788 |
2313 | /* |
3de9ffa1 |
2314 | * XXX Might it be better to release CvMUTEXP(cv) while we |
2315 | * do the hv_fetch? We might find someone has pinched it |
2316 | * when we look again, in which case we would be in case |
2317 | * (3) instead of (2) so we'd have to clone. Would the fact |
2318 | * that we released the mutex more quickly make up for this? |
2319 | */ |
b099ddc0 |
2320 | if ((svp = hv_fetch(thr->cvcache, (char *)cv, sizeof(cv), FALSE))) |
6ee623d5 |
2321 | { |
3de9ffa1 |
2322 | /* We already have a clone to use */ |
11343788 |
2323 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
3de9ffa1 |
2324 | cv = *(CV**)svp; |
8b73bbec |
2325 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
1fd28e87 |
2326 | "entersub: %p already has clone %p:%s\n", |
2327 | thr, cv, SvPEEK((SV*)cv))); |
3de9ffa1 |
2328 | CvOWNER(cv) = thr; |
2329 | SvREFCNT_inc(cv); |
2330 | if (CvDEPTH(cv) == 0) |
51371543 |
2331 | SAVEDESTRUCTOR(unset_cvowner, (void*) cv); |
3de9ffa1 |
2332 | } |
11343788 |
2333 | else { |
3de9ffa1 |
2334 | /* (2) => grab ownership of cv. (3) => make clone */ |
2335 | if (!CvOWNER(cv)) { |
2336 | CvOWNER(cv) = thr; |
2337 | SvREFCNT_inc(cv); |
11343788 |
2338 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
8b73bbec |
2339 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
1fd28e87 |
2340 | "entersub: %p grabbing %p:%s in stash %s\n", |
2341 | thr, cv, SvPEEK((SV*)cv), CvSTASH(cv) ? |
3de9ffa1 |
2342 | HvNAME(CvSTASH(cv)) : "(none)")); |
cd06dffe |
2343 | } |
2344 | else { |
3de9ffa1 |
2345 | /* Make a new clone. */ |
2346 | CV *clonecv; |
2347 | SvREFCNT_inc(cv); /* don't let it vanish from under us */ |
2348 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
8b73bbec |
2349 | DEBUG_S((PerlIO_printf(PerlIO_stderr(), |
1fd28e87 |
2350 | "entersub: %p cloning %p:%s\n", |
2351 | thr, cv, SvPEEK((SV*)cv)))); |
3de9ffa1 |
2352 | /* |
2353 | * We're creating a new clone so there's no race |
2354 | * between the original MUTEX_UNLOCK and the |
2355 | * SvREFCNT_inc since no one will be trying to undef |
2356 | * it out from underneath us. At least, I don't think |
2357 | * there's a race... |
2358 | */ |
2359 | clonecv = cv_clone(cv); |
2360 | SvREFCNT_dec(cv); /* finished with this */ |
199100c8 |
2361 | hv_store(thr->cvcache, (char*)cv, sizeof(cv), (SV*)clonecv,0); |
3de9ffa1 |
2362 | CvOWNER(clonecv) = thr; |
2363 | cv = clonecv; |
11343788 |
2364 | SvREFCNT_inc(cv); |
11343788 |
2365 | } |
8b73bbec |
2366 | DEBUG_S(if (CvDEPTH(cv) != 0) |
3de9ffa1 |
2367 | PerlIO_printf(PerlIO_stderr(), "depth %ld != 0\n", |
2368 | CvDEPTH(cv));); |
51371543 |
2369 | SAVEDESTRUCTOR(unset_cvowner, (void*) cv); |
11343788 |
2370 | } |
3de9ffa1 |
2371 | } |
11343788 |
2372 | #endif /* USE_THREADS */ |
2373 | |
a0d0e21e |
2374 | if (CvXSUB(cv)) { |
67caa1fe |
2375 | #ifdef PERL_XSUB_OLDSTYLE |
a0d0e21e |
2376 | if (CvOLDSTYLE(cv)) { |
20ce7b12 |
2377 | I32 (*fp3)(int,int,int); |
a0d0e21e |
2378 | dMARK; |
2379 | register I32 items = SP - MARK; |
67955e0c |
2380 | /* We dont worry to copy from @_. */ |
924508f0 |
2381 | while (SP > mark) { |
2382 | SP[1] = SP[0]; |
2383 | SP--; |
a0d0e21e |
2384 | } |
3280af22 |
2385 | PL_stack_sp = mark + 1; |
20ce7b12 |
2386 | fp3 = (I32(*)(int,int,int)))CvXSUB(cv; |
ecfc5424 |
2387 | items = (*fp3)(CvXSUBANY(cv).any_i32, |
3280af22 |
2388 | MARK - PL_stack_base + 1, |
ecfc5424 |
2389 | items); |
3280af22 |
2390 | PL_stack_sp = PL_stack_base + items; |
a0d0e21e |
2391 | } |
67caa1fe |
2392 | else |
2393 | #endif /* PERL_XSUB_OLDSTYLE */ |
2394 | { |
748a9306 |
2395 | I32 markix = TOPMARK; |
2396 | |
a0d0e21e |
2397 | PUTBACK; |
67955e0c |
2398 | |
2399 | if (!hasargs) { |
2400 | /* Need to copy @_ to stack. Alternative may be to |
2401 | * switch stack to @_, and copy return values |
2402 | * back. This would allow popping @_ in XSUB, e.g.. XXXX */ |
6d4ff0d2 |
2403 | AV* av; |
2404 | I32 items; |
2405 | #ifdef USE_THREADS |
533c011a |
2406 | av = (AV*)PL_curpad[0]; |
6d4ff0d2 |
2407 | #else |
3280af22 |
2408 | av = GvAV(PL_defgv); |
6d4ff0d2 |
2409 | #endif /* USE_THREADS */ |
93965878 |
2410 | items = AvFILLp(av) + 1; /* @_ is not tieable */ |
67955e0c |
2411 | |
2412 | if (items) { |
2413 | /* Mark is at the end of the stack. */ |
924508f0 |
2414 | EXTEND(SP, items); |
2415 | Copy(AvARRAY(av), SP + 1, items, SV*); |
2416 | SP += items; |
67955e0c |
2417 | PUTBACK ; |
2418 | } |
2419 | } |
67caa1fe |
2420 | /* We assume first XSUB in &DB::sub is the called one. */ |
2421 | if (PL_curcopdb) { |
3280af22 |
2422 | SAVESPTR(PL_curcop); |
2423 | PL_curcop = PL_curcopdb; |
2424 | PL_curcopdb = NULL; |
67955e0c |
2425 | } |
2426 | /* Do we need to open block here? XXXX */ |
0cb96387 |
2427 | (void)(*CvXSUB(cv))(aTHXo_ cv); |
748a9306 |
2428 | |
2429 | /* Enforce some sanity in scalar context. */ |
3280af22 |
2430 | if (gimme == G_SCALAR && ++markix != PL_stack_sp - PL_stack_base ) { |
2431 | if (markix > PL_stack_sp - PL_stack_base) |
2432 | *(PL_stack_base + markix) = &PL_sv_undef; |
748a9306 |
2433 | else |
3280af22 |
2434 | *(PL_stack_base + markix) = *PL_stack_sp; |
2435 | PL_stack_sp = PL_stack_base + markix; |
748a9306 |
2436 | } |
a0d0e21e |
2437 | } |
2438 | LEAVE; |
2439 | return NORMAL; |
2440 | } |
2441 | else { |
2442 | dMARK; |
2443 | register I32 items = SP - MARK; |
a0d0e21e |
2444 | AV* padlist = CvPADLIST(cv); |
2445 | SV** svp = AvARRAY(padlist); |
533c011a |
2446 | push_return(PL_op->op_next); |
a0d0e21e |
2447 | PUSHBLOCK(cx, CXt_SUB, MARK); |
2448 | PUSHSUB(cx); |
2449 | CvDEPTH(cv)++; |
6b35e009 |
2450 | /* XXX This would be a natural place to set C<PL_compcv = cv> so |
2451 | * that eval'' ops within this sub know the correct lexical space. |
2452 | * Owing the speed considerations, we choose to search for the cv |
2453 | * in doeval() instead. |
2454 | */ |
a0d0e21e |
2455 | if (CvDEPTH(cv) < 2) |
2456 | (void)SvREFCNT_inc(cv); |
2457 | else { /* save temporaries on recursion? */ |
93965878 |
2458 | if (CvDEPTH(cv) > AvFILLp(padlist)) { |
a0d0e21e |
2459 | AV *av; |
2460 | AV *newpad = newAV(); |
4aa0a1f7 |
2461 | SV **oldpad = AvARRAY(svp[CvDEPTH(cv)-1]); |
93965878 |
2462 | I32 ix = AvFILLp((AV*)svp[1]); |
a0d0e21e |
2463 | svp = AvARRAY(svp[0]); |
748a9306 |
2464 | for ( ;ix > 0; ix--) { |
3280af22 |
2465 | if (svp[ix] != &PL_sv_undef) { |
748a9306 |
2466 | char *name = SvPVX(svp[ix]); |
5f05dabc |
2467 | if ((SvFLAGS(svp[ix]) & SVf_FAKE) /* outer lexical? */ |
2468 | || *name == '&') /* anonymous code? */ |
2469 | { |
2470 | av_store(newpad, ix, SvREFCNT_inc(oldpad[ix])); |
748a9306 |
2471 | } |
2472 | else { /* our own lexical */ |
2473 | if (*name == '@') |
2474 | av_store(newpad, ix, sv = (SV*)newAV()); |
2475 | else if (*name == '%') |
2476 | av_store(newpad, ix, sv = (SV*)newHV()); |
2477 | else |
2478 | av_store(newpad, ix, sv = NEWSV(0,0)); |
2479 | SvPADMY_on(sv); |
2480 | } |
a0d0e21e |
2481 | } |
2482 | else { |
748a9306 |
2483 | av_store(newpad, ix, sv = NEWSV(0,0)); |
a0d0e21e |
2484 | SvPADTMP_on(sv); |
2485 | } |
2486 | } |
2487 | av = newAV(); /* will be @_ */ |
2488 | av_extend(av, 0); |
2489 | av_store(newpad, 0, (SV*)av); |
2490 | AvFLAGS(av) = AVf_REIFY; |
2491 | av_store(padlist, CvDEPTH(cv), (SV*)newpad); |
93965878 |
2492 | AvFILLp(padlist) = CvDEPTH(cv); |
a0d0e21e |
2493 | svp = AvARRAY(padlist); |
2494 | } |
2495 | } |
6d4ff0d2 |
2496 | #ifdef USE_THREADS |
2497 | if (!hasargs) { |
533c011a |
2498 | AV* av = (AV*)PL_curpad[0]; |
6d4ff0d2 |
2499 | |
93965878 |
2500 | items = AvFILLp(av) + 1; |
6d4ff0d2 |
2501 | if (items) { |
2502 | /* Mark is at the end of the stack. */ |
924508f0 |
2503 | EXTEND(SP, items); |
2504 | Copy(AvARRAY(av), SP + 1, items, SV*); |
2505 | SP += items; |
6d4ff0d2 |
2506 | PUTBACK ; |
2507 | } |
2508 | } |
2509 | #endif /* USE_THREADS */ |
3280af22 |
2510 | SAVESPTR(PL_curpad); |
2511 | PL_curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]); |
6d4ff0d2 |
2512 | #ifndef USE_THREADS |
2513 | if (hasargs) |
2514 | #endif /* USE_THREADS */ |
2515 | { |
2516 | AV* av; |
a0d0e21e |
2517 | SV** ary; |
2518 | |
77a005ab |
2519 | #if 0 |
8b73bbec |
2520 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
0f15f207 |
2521 | "%p entersub preparing @_\n", thr)); |
77a005ab |
2522 | #endif |
3280af22 |
2523 | av = (AV*)PL_curpad[0]; |
a0d0e21e |
2524 | if (AvREAL(av)) { |
2525 | av_clear(av); |
2526 | AvREAL_off(av); |
64de36e6 |
2527 | AvREIFY_on(av); |
a0d0e21e |
2528 | } |
6d4ff0d2 |
2529 | #ifndef USE_THREADS |
3280af22 |
2530 | cx->blk_sub.savearray = GvAV(PL_defgv); |
2531 | GvAV(PL_defgv) = (AV*)SvREFCNT_inc(av); |
6d4ff0d2 |
2532 | #endif /* USE_THREADS */ |
2533 | cx->blk_sub.argarray = av; |
a0d0e21e |
2534 | ++MARK; |
2535 | |
2536 | if (items > AvMAX(av) + 1) { |
2537 | ary = AvALLOC(av); |
2538 | if (AvARRAY(av) != ary) { |
2539 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); |
2540 | SvPVX(av) = (char*)ary; |
2541 | } |
2542 | if (items > AvMAX(av) + 1) { |
2543 | AvMAX(av) = items - 1; |
2544 | Renew(ary,items,SV*); |
2545 | AvALLOC(av) = ary; |
2546 | SvPVX(av) = (char*)ary; |
2547 | } |
2548 | } |
2549 | Copy(MARK,AvARRAY(av),items,SV*); |
93965878 |
2550 | AvFILLp(av) = items - 1; |
a0d0e21e |
2551 | |
2552 | while (items--) { |
2553 | if (*MARK) |
2554 | SvTEMP_off(*MARK); |
2555 | MARK++; |
2556 | } |
2557 | } |
4a925ff6 |
2558 | /* warning must come *after* we fully set up the context |
2559 | * stuff so that __WARN__ handlers can safely dounwind() |
2560 | * if they want to |
2561 | */ |
2562 | if (CvDEPTH(cv) == 100 && ckWARN(WARN_RECURSION) |
2563 | && !(PERLDB_SUB && cv == GvCV(PL_DBsub))) |
2564 | sub_crush_depth(cv); |
77a005ab |
2565 | #if 0 |
8b73bbec |
2566 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
0f15f207 |
2567 | "%p entersub returning %p\n", thr, CvSTART(cv))); |
77a005ab |
2568 | #endif |
a0d0e21e |
2569 | RETURNOP(CvSTART(cv)); |
2570 | } |
2571 | } |
2572 | |
44a8e56a |
2573 | void |
864dbfa3 |
2574 | Perl_sub_crush_depth(pTHX_ CV *cv) |
44a8e56a |
2575 | { |
2576 | if (CvANON(cv)) |
cea2e8a9 |
2577 | Perl_warner(aTHX_ WARN_RECURSION, "Deep recursion on anonymous subroutine"); |
44a8e56a |
2578 | else { |
2579 | SV* tmpstr = sv_newmortal(); |
2580 | gv_efullname3(tmpstr, CvGV(cv), Nullch); |
cea2e8a9 |
2581 | Perl_warner(aTHX_ WARN_RECURSION, "Deep recursion on subroutine \"%s\"", |
599cee73 |
2582 | SvPVX(tmpstr)); |
44a8e56a |
2583 | } |
2584 | } |
2585 | |
a0d0e21e |
2586 | PP(pp_aelem) |
2587 | { |
4e35701f |
2588 | djSP; |
a0d0e21e |
2589 | SV** svp; |
748a9306 |
2590 | I32 elem = POPi; |
68dc0745 |
2591 | AV* av = (AV*)POPs; |
533c011a |
2592 | U32 lval = PL_op->op_flags & OPf_MOD; |
2593 | U32 defer = (PL_op->op_private & OPpLVAL_DEFER) && (elem > AvFILL(av)); |
be6c24e0 |
2594 | SV *sv; |
a0d0e21e |
2595 | |
748a9306 |
2596 | if (elem > 0) |
3280af22 |
2597 | elem -= PL_curcop->cop_arybase; |
a0d0e21e |
2598 | if (SvTYPE(av) != SVt_PVAV) |
2599 | RETPUSHUNDEF; |
68dc0745 |
2600 | svp = av_fetch(av, elem, lval && !defer); |
a0d0e21e |
2601 | if (lval) { |
3280af22 |
2602 | if (!svp || *svp == &PL_sv_undef) { |
68dc0745 |
2603 | SV* lv; |
2604 | if (!defer) |
cea2e8a9 |
2605 | DIE(aTHX_ PL_no_aelem, elem); |
68dc0745 |
2606 | lv = sv_newmortal(); |
2607 | sv_upgrade(lv, SVt_PVLV); |
2608 | LvTYPE(lv) = 'y'; |
2609 | sv_magic(lv, Nullsv, 'y', Nullch, 0); |
2610 | LvTARG(lv) = SvREFCNT_inc(av); |
2611 | LvTARGOFF(lv) = elem; |
2612 | LvTARGLEN(lv) = 1; |
2613 | PUSHs(lv); |
2614 | RETURN; |
2615 | } |
533c011a |
2616 | if (PL_op->op_private & OPpLVAL_INTRO) |
161b7d16 |
2617 | save_aelem(av, elem, svp); |
533c011a |
2618 | else if (PL_op->op_private & OPpDEREF) |
2619 | vivify_ref(*svp, PL_op->op_private & OPpDEREF); |
a0d0e21e |
2620 | } |
3280af22 |
2621 | sv = (svp ? *svp : &PL_sv_undef); |
be6c24e0 |
2622 | if (!lval && SvGMAGICAL(sv)) /* see note in pp_helem() */ |
2623 | sv = sv_mortalcopy(sv); |
2624 | PUSHs(sv); |
a0d0e21e |
2625 | RETURN; |
2626 | } |
2627 | |
02a9e968 |
2628 | void |
864dbfa3 |
2629 | Perl_vivify_ref(pTHX_ SV *sv, U32 to_what) |
02a9e968 |
2630 | { |
2631 | if (SvGMAGICAL(sv)) |
2632 | mg_get(sv); |
2633 | if (!SvOK(sv)) { |
2634 | if (SvREADONLY(sv)) |
cea2e8a9 |
2635 | Perl_croak(aTHX_ PL_no_modify); |
5f05dabc |
2636 | if (SvTYPE(sv) < SVt_RV) |
2637 | sv_upgrade(sv, SVt_RV); |
2638 | else if (SvTYPE(sv) >= SVt_PV) { |
2639 | (void)SvOOK_off(sv); |
2640 | Safefree(SvPVX(sv)); |
2641 | SvLEN(sv) = SvCUR(sv) = 0; |
2642 | } |
68dc0745 |
2643 | switch (to_what) { |
5f05dabc |
2644 | case OPpDEREF_SV: |
8c52afec |
2645 | SvRV(sv) = NEWSV(355,0); |
5f05dabc |
2646 | break; |
2647 | case OPpDEREF_AV: |
2648 | SvRV(sv) = (SV*)newAV(); |
2649 | break; |
2650 | case OPpDEREF_HV: |
2651 | SvRV(sv) = (SV*)newHV(); |
2652 | break; |
2653 | } |
02a9e968 |
2654 | SvROK_on(sv); |
2655 | SvSETMAGIC(sv); |
2656 | } |
2657 | } |
2658 | |
a0d0e21e |
2659 | PP(pp_method) |
2660 | { |
4e35701f |
2661 | djSP; |
f5d5a27c |
2662 | SV* sv = TOPs; |
2663 | |
2664 | if (SvROK(sv)) { |
eda383f2 |
2665 | SV* rsv = SvRV(sv); |
f5d5a27c |
2666 | if (SvTYPE(rsv) == SVt_PVCV) { |
2667 | SETs(rsv); |
2668 | RETURN; |
2669 | } |
2670 | } |
2671 | |
2672 | SETs(method_common(sv, Null(U32*))); |
2673 | RETURN; |
2674 | } |
2675 | |
2676 | PP(pp_method_named) |
2677 | { |
2678 | djSP; |
2679 | SV* sv = cSVOP->op_sv; |
2680 | U32 hash = SvUVX(sv); |
2681 | |
2682 | XPUSHs(method_common(sv, &hash)); |
2683 | RETURN; |
2684 | } |
2685 | |
2686 | STATIC SV * |
2687 | S_method_common(pTHX_ SV* meth, U32* hashp) |
2688 | { |
2689 | djSP; |
a0d0e21e |
2690 | SV* sv; |
2691 | SV* ob; |
2692 | GV* gv; |
56304f61 |
2693 | HV* stash; |
2694 | char* name; |
f5d5a27c |
2695 | STRLEN namelen; |
ac91690f |
2696 | char* packname; |
2697 | STRLEN packlen; |
a0d0e21e |
2698 | |
f5d5a27c |
2699 | name = SvPV(meth, namelen); |
3280af22 |
2700 | sv = *(PL_stack_base + TOPMARK + 1); |
f5d5a27c |
2701 | |
16d20bd9 |
2702 | if (SvGMAGICAL(sv)) |
2703 | mg_get(sv); |
a0d0e21e |
2704 | if (SvROK(sv)) |
16d20bd9 |
2705 | ob = (SV*)SvRV(sv); |
a0d0e21e |
2706 | else { |
2707 | GV* iogv; |
a0d0e21e |
2708 | |
56304f61 |
2709 | packname = Nullch; |
a0d0e21e |
2710 | if (!SvOK(sv) || |
56304f61 |
2711 | !(packname = SvPV(sv, packlen)) || |
a0d0e21e |
2712 | !(iogv = gv_fetchpv(packname, FALSE, SVt_PVIO)) || |
2713 | !(ob=(SV*)GvIO(iogv))) |
2714 | { |
834a4ddd |
2715 | if (!packname || |
2716 | ((*(U8*)packname >= 0xc0 && IN_UTF8) |
b86a2fa7 |
2717 | ? !isIDFIRST_utf8((U8*)packname) |
834a4ddd |
2718 | : !isIDFIRST(*packname) |
2719 | )) |
2720 | { |
f5d5a27c |
2721 | Perl_croak(aTHX_ "Can't call method \"%s\" %s", name, |
2722 | SvOK(sv) ? "without a package or object reference" |
2723 | : "on an undefined value"); |
834a4ddd |
2724 | } |
56304f61 |
2725 | stash = gv_stashpvn(packname, packlen, TRUE); |
ac91690f |
2726 | goto fetch; |
a0d0e21e |
2727 | } |
3280af22 |
2728 | *(PL_stack_base + TOPMARK + 1) = sv_2mortal(newRV((SV*)iogv)); |
a0d0e21e |
2729 | } |
2730 | |
ac91690f |
2731 | if (!ob || !SvOBJECT(ob)) |
f5d5a27c |
2732 | Perl_croak(aTHX_ "Can't call method \"%s\" on unblessed reference", |
2733 | name); |
a0d0e21e |
2734 | |
56304f61 |
2735 | stash = SvSTASH(ob); |
a0d0e21e |
2736 | |
ac91690f |
2737 | fetch: |
f5d5a27c |
2738 | /* shortcut for simple names */ |
2739 | if (hashp) { |
2740 | HE* he = hv_fetch_ent(stash, meth, 0, *hashp); |
2741 | if (he) { |
2742 | gv = (GV*)HeVAL(he); |
2743 | if (isGV(gv) && GvCV(gv) && |
2744 | (!GvCVGEN(gv) || GvCVGEN(gv) == PL_sub_generation)) |
2745 | return (SV*)GvCV(gv); |
2746 | } |
2747 | } |
2748 | |
ac91690f |
2749 | gv = gv_fetchmethod(stash, name); |
56304f61 |
2750 | if (!gv) { |
2751 | char* leaf = name; |
2752 | char* sep = Nullch; |
2753 | char* p; |
2754 | |
2755 | for (p = name; *p; p++) { |
2756 | if (*p == '\'') |
2757 | sep = p, leaf = p + 1; |
2758 | else if (*p == ':' && *(p + 1) == ':') |
2759 | sep = p, leaf = p + 2; |
2760 | } |
2761 | if (!sep || ((sep - name) == 5 && strnEQ(name, "SUPER", 5))) { |
3280af22 |
2762 | packname = HvNAME(sep ? PL_curcop->cop_stash : stash); |
56304f61 |
2763 | packlen = strlen(packname); |
2764 | } |
2765 | else { |
2766 | packname = name; |
2767 | packlen = sep - name; |
2768 | } |
f5d5a27c |
2769 | Perl_croak(aTHX_ |
2770 | "Can't locate object method \"%s\" via package \"%s\"", |
2771 | leaf, packname); |
56304f61 |
2772 | } |
f5d5a27c |
2773 | return isGV(gv) ? (SV*)GvCV(gv) : (SV*)gv; |
a0d0e21e |
2774 | } |
22239a37 |
2775 | |
51371543 |
2776 | #ifdef USE_THREADS |
2777 | static void |
2778 | unset_cvowner(pTHXo_ void *cvarg) |
2779 | { |
2780 | register CV* cv = (CV *) cvarg; |
2781 | #ifdef DEBUGGING |
2782 | dTHR; |
2783 | #endif /* DEBUGGING */ |
2784 | |
2785 | DEBUG_S((PerlIO_printf(PerlIO_stderr(), "%p unsetting CvOWNER of %p:%s\n", |
2786 | thr, cv, SvPEEK((SV*)cv)))); |
2787 | MUTEX_LOCK(CvMUTEXP(cv)); |
2788 | DEBUG_S(if (CvDEPTH(cv) != 0) |
2789 | PerlIO_printf(PerlIO_stderr(), "depth %ld != 0\n", |
2790 | CvDEPTH(cv));); |
2791 | assert(thr == CvOWNER(cv)); |
2792 | CvOWNER(cv) = 0; |
2793 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
2794 | SvREFCNT_dec(cv); |
2795 | } |
2796 | #endif /* USE_THREADS */ |