Commit | Line | Data |
---|---|---|
a0d0e21e LW |
1 | /* pp_hot.c |
2 | * | |
3818b22b | 3 | * Copyright (c) 1991-2000, Larry Wall |
a0d0e21e LW |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public | |
6 | * License or the Artistic License, as specified in the README file. | |
7 | * | |
8 | */ | |
9 | ||
10 | /* | |
11 | * Then he heard Merry change the note, and up went the Horn-cry of Buckland, | |
12 | * shaking the air. | |
13 | * | |
14 | * Awake! Awake! Fear, Fire, Foes! Awake! | |
15 | * Fire, Foes! Awake! | |
16 | */ | |
17 | ||
18 | #include "EXTERN.h" | |
864dbfa3 | 19 | #define PERL_IN_PP_HOT_C |
a0d0e21e LW |
20 | #include "perl.h" |
21 | ||
8ac85365 NIS |
22 | #ifdef I_UNISTD |
23 | #include <unistd.h> | |
24 | #endif | |
a0ed51b3 | 25 | |
a0d0e21e LW |
26 | /* Hot code. */ |
27 | ||
11343788 | 28 | #ifdef USE_THREADS |
51371543 | 29 | static void unset_cvowner(pTHXo_ void *cvarg); |
11343788 MB |
30 | #endif /* USE_THREADS */ |
31 | ||
a0d0e21e LW |
32 | PP(pp_const) |
33 | { | |
4e35701f | 34 | djSP; |
1d7c1841 | 35 | XPUSHs(cSVOP_sv); |
a0d0e21e LW |
36 | RETURN; |
37 | } | |
38 | ||
39 | PP(pp_nextstate) | |
40 | { | |
533c011a | 41 | PL_curcop = (COP*)PL_op; |
a0d0e21e | 42 | TAINT_NOT; /* Each statement is presumed innocent */ |
3280af22 | 43 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e LW |
44 | FREETMPS; |
45 | return NORMAL; | |
46 | } | |
47 | ||
48 | PP(pp_gvsv) | |
49 | { | |
4e35701f | 50 | djSP; |
924508f0 | 51 | EXTEND(SP,1); |
533c011a | 52 | if (PL_op->op_private & OPpLVAL_INTRO) |
1d7c1841 | 53 | PUSHs(save_scalar(cGVOP_gv)); |
a0d0e21e | 54 | else |
1d7c1841 | 55 | PUSHs(GvSV(cGVOP_gv)); |
a0d0e21e LW |
56 | RETURN; |
57 | } | |
58 | ||
59 | PP(pp_null) | |
60 | { | |
61 | return NORMAL; | |
62 | } | |
63 | ||
7399586d HS |
64 | PP(pp_setstate) |
65 | { | |
66 | PL_curcop = (COP*)PL_op; | |
67 | return NORMAL; | |
68 | } | |
69 | ||
a0d0e21e LW |
70 | PP(pp_pushmark) |
71 | { | |
3280af22 | 72 | PUSHMARK(PL_stack_sp); |
a0d0e21e LW |
73 | return NORMAL; |
74 | } | |
75 | ||
76 | PP(pp_stringify) | |
77 | { | |
4e35701f | 78 | djSP; dTARGET; |
a0d0e21e LW |
79 | STRLEN len; |
80 | char *s; | |
81 | s = SvPV(TOPs,len); | |
82 | sv_setpvn(TARG,s,len); | |
234a4bc6 GS |
83 | if (SvUTF8(TOPs) && !IN_BYTE) |
84 | SvUTF8_on(TARG); | |
a0d0e21e LW |
85 | SETTARG; |
86 | RETURN; | |
87 | } | |
88 | ||
89 | PP(pp_gv) | |
90 | { | |
4e35701f | 91 | djSP; |
1d7c1841 | 92 | XPUSHs((SV*)cGVOP_gv); |
a0d0e21e LW |
93 | RETURN; |
94 | } | |
95 | ||
96 | PP(pp_and) | |
97 | { | |
4e35701f | 98 | djSP; |
a0d0e21e LW |
99 | if (!SvTRUE(TOPs)) |
100 | RETURN; | |
101 | else { | |
102 | --SP; | |
103 | RETURNOP(cLOGOP->op_other); | |
104 | } | |
105 | } | |
106 | ||
107 | PP(pp_sassign) | |
108 | { | |
4e35701f | 109 | djSP; dPOPTOPssrl; |
748a9306 | 110 | |
533c011a | 111 | if (PL_op->op_private & OPpASSIGN_BACKWARDS) { |
a0d0e21e LW |
112 | SV *temp; |
113 | temp = left; left = right; right = temp; | |
114 | } | |
3280af22 | 115 | if (PL_tainting && PL_tainted && !SvTAINTED(left)) |
a0d0e21e | 116 | TAINT_NOT; |
54310121 | 117 | SvSetMagicSV(right, left); |
a0d0e21e LW |
118 | SETs(right); |
119 | RETURN; | |
120 | } | |
121 | ||
122 | PP(pp_cond_expr) | |
123 | { | |
4e35701f | 124 | djSP; |
a0d0e21e | 125 | if (SvTRUEx(POPs)) |
1a67a97c | 126 | RETURNOP(cLOGOP->op_other); |
a0d0e21e | 127 | else |
1a67a97c | 128 | RETURNOP(cLOGOP->op_next); |
a0d0e21e LW |
129 | } |
130 | ||
131 | PP(pp_unstack) | |
132 | { | |
133 | I32 oldsave; | |
134 | TAINT_NOT; /* Each statement is presumed innocent */ | |
3280af22 | 135 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e | 136 | FREETMPS; |
3280af22 | 137 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e LW |
138 | LEAVE_SCOPE(oldsave); |
139 | return NORMAL; | |
140 | } | |
141 | ||
a0d0e21e LW |
142 | PP(pp_concat) |
143 | { | |
4e35701f | 144 | djSP; dATARGET; tryAMAGICbin(concat,opASSIGN); |
748a9306 LW |
145 | { |
146 | dPOPTOPssrl; | |
a0d0e21e LW |
147 | STRLEN len; |
148 | char *s; | |
69b47968 | 149 | |
a0d0e21e LW |
150 | if (TARG != left) { |
151 | s = SvPV(left,len); | |
69b47968 GS |
152 | if (TARG == right) { |
153 | sv_insert(TARG, 0, 0, s, len); | |
154 | SETs(TARG); | |
155 | RETURN; | |
156 | } | |
a0d0e21e LW |
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 NIS |
166 | if (SvOK(TARG)) { |
167 | #if defined(PERL_Y2KWARN) | |
e476b1b5 | 168 | if ((SvIOK(right) || SvNOK(right)) && ckWARN(WARN_Y2K)) { |
5bc28da9 NIS |
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 | { | |
e476b1b5 | 174 | Perl_warner(aTHX_ WARN_Y2K, "Possible Y2K bug: %s", |
5bc28da9 NIS |
175 | "about to append an integer to '19'"); |
176 | } | |
177 | } | |
178 | #endif | |
560a288e GS |
179 | if (DO_UTF8(right)) |
180 | sv_utf8_upgrade(TARG); | |
68dc0745 | 181 | sv_catpvn(TARG,s,len); |
560a288e GS |
182 | if (!IN_BYTE) { |
183 | if (SvUTF8(right)) | |
184 | SvUTF8_on(TARG); | |
185 | } | |
186 | else if (!SvUTF8(right)) { | |
187 | SvUTF8_off(TARG); | |
188 | } | |
5bc28da9 | 189 | } |
68dc0745 | 190 | else |
191 | sv_setpvn(TARG,s,len); /* suppress warning */ | |
a0d0e21e LW |
192 | SETTARG; |
193 | RETURN; | |
748a9306 | 194 | } |
a0d0e21e LW |
195 | } |
196 | ||
197 | PP(pp_padsv) | |
198 | { | |
4e35701f | 199 | djSP; dTARGET; |
a0d0e21e | 200 | XPUSHs(TARG); |
533c011a NIS |
201 | if (PL_op->op_flags & OPf_MOD) { |
202 | if (PL_op->op_private & OPpLVAL_INTRO) | |
203 | SAVECLEARSV(PL_curpad[PL_op->op_targ]); | |
204 | else if (PL_op->op_private & OPpDEREF) { | |
8ec5e241 | 205 | PUTBACK; |
533c011a | 206 | vivify_ref(PL_curpad[PL_op->op_targ], PL_op->op_private & OPpDEREF); |
8ec5e241 NIS |
207 | SPAGAIN; |
208 | } | |
4633a7c4 | 209 | } |
a0d0e21e LW |
210 | RETURN; |
211 | } | |
212 | ||
213 | PP(pp_readline) | |
214 | { | |
f5284f61 | 215 | tryAMAGICunTARGET(iter, 0); |
3280af22 | 216 | PL_last_in_gv = (GV*)(*PL_stack_sp--); |
8efb3254 GS |
217 | if (SvTYPE(PL_last_in_gv) != SVt_PVGV) { |
218 | if (SvROK(PL_last_in_gv) && SvTYPE(SvRV(PL_last_in_gv)) == SVt_PVGV) | |
f5284f61 | 219 | PL_last_in_gv = (GV*)SvRV(PL_last_in_gv); |
8efb3254 | 220 | else { |
f5284f61 IZ |
221 | dSP; |
222 | XPUSHs((SV*)PL_last_in_gv); | |
223 | PUTBACK; | |
cea2e8a9 | 224 | pp_rv2gv(); |
f5284f61 | 225 | PL_last_in_gv = (GV*)(*PL_stack_sp--); |
f5284f61 IZ |
226 | } |
227 | } | |
a0d0e21e LW |
228 | return do_readline(); |
229 | } | |
230 | ||
231 | PP(pp_eq) | |
232 | { | |
4e35701f | 233 | djSP; tryAMAGICbinSET(eq,0); |
a0d0e21e LW |
234 | { |
235 | dPOPnv; | |
54310121 | 236 | SETs(boolSV(TOPn == value)); |
a0d0e21e LW |
237 | RETURN; |
238 | } | |
239 | } | |
240 | ||
241 | PP(pp_preinc) | |
242 | { | |
4e35701f | 243 | djSP; |
68dc0745 | 244 | if (SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV) |
d470f89e | 245 | DIE(aTHX_ PL_no_modify); |
25da4f38 | 246 | if (SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) && |
55497cff | 247 | SvIVX(TOPs) != IV_MAX) |
248 | { | |
748a9306 | 249 | ++SvIVX(TOPs); |
55497cff | 250 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
748a9306 LW |
251 | } |
252 | else | |
253 | sv_inc(TOPs); | |
a0d0e21e LW |
254 | SvSETMAGIC(TOPs); |
255 | return NORMAL; | |
256 | } | |
257 | ||
258 | PP(pp_or) | |
259 | { | |
4e35701f | 260 | djSP; |
a0d0e21e LW |
261 | if (SvTRUE(TOPs)) |
262 | RETURN; | |
263 | else { | |
264 | --SP; | |
265 | RETURNOP(cLOGOP->op_other); | |
266 | } | |
267 | } | |
268 | ||
269 | PP(pp_add) | |
270 | { | |
4e35701f | 271 | djSP; dATARGET; tryAMAGICbin(add,opASSIGN); |
a0d0e21e | 272 | { |
7a4c00b4 | 273 | dPOPTOPnnrl_ul; |
a0d0e21e LW |
274 | SETn( left + right ); |
275 | RETURN; | |
276 | } | |
277 | } | |
278 | ||
279 | PP(pp_aelemfast) | |
280 | { | |
4e35701f | 281 | djSP; |
1d7c1841 | 282 | AV *av = GvAV(cGVOP_gv); |
533c011a NIS |
283 | U32 lval = PL_op->op_flags & OPf_MOD; |
284 | SV** svp = av_fetch(av, PL_op->op_private, lval); | |
3280af22 | 285 | SV *sv = (svp ? *svp : &PL_sv_undef); |
6ff81951 | 286 | EXTEND(SP, 1); |
be6c24e0 GS |
287 | if (!lval && SvGMAGICAL(sv)) /* see note in pp_helem() */ |
288 | sv = sv_mortalcopy(sv); | |
289 | PUSHs(sv); | |
a0d0e21e LW |
290 | RETURN; |
291 | } | |
292 | ||
293 | PP(pp_join) | |
294 | { | |
4e35701f | 295 | djSP; dMARK; dTARGET; |
a0d0e21e LW |
296 | MARK++; |
297 | do_join(TARG, *MARK, MARK, SP); | |
298 | SP = MARK; | |
299 | SETs(TARG); | |
300 | RETURN; | |
301 | } | |
302 | ||
303 | PP(pp_pushre) | |
304 | { | |
4e35701f | 305 | djSP; |
44a8e56a | 306 | #ifdef DEBUGGING |
307 | /* | |
308 | * We ass_u_me that LvTARGOFF() comes first, and that two STRLENs | |
309 | * will be enough to hold an OP*. | |
310 | */ | |
311 | SV* sv = sv_newmortal(); | |
312 | sv_upgrade(sv, SVt_PVLV); | |
313 | LvTYPE(sv) = '/'; | |
533c011a | 314 | Copy(&PL_op, &LvTARGOFF(sv), 1, OP*); |
44a8e56a | 315 | XPUSHs(sv); |
316 | #else | |
6b88bc9c | 317 | XPUSHs((SV*)PL_op); |
44a8e56a | 318 | #endif |
a0d0e21e LW |
319 | RETURN; |
320 | } | |
321 | ||
322 | /* Oversized hot code. */ | |
323 | ||
324 | PP(pp_print) | |
325 | { | |
4e35701f | 326 | djSP; dMARK; dORIGMARK; |
a0d0e21e LW |
327 | GV *gv; |
328 | IO *io; | |
760ac839 | 329 | register PerlIO *fp; |
236988e4 | 330 | MAGIC *mg; |
2d8e6c8d | 331 | STRLEN n_a; |
a0d0e21e | 332 | |
533c011a | 333 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e LW |
334 | gv = (GV*)*++MARK; |
335 | else | |
3280af22 | 336 | gv = PL_defoutgv; |
155aba94 | 337 | if ((mg = SvTIED_mg((SV*)gv, 'q'))) { |
68dc0745 | 338 | if (MARK == ORIGMARK) { |
a60c0954 NIS |
339 | /* If using default handle then we need to make space to |
340 | * pass object as 1st arg, so move other args up ... | |
341 | */ | |
4352c267 | 342 | MEXTEND(SP, 1); |
68dc0745 | 343 | ++MARK; |
344 | Move(MARK, MARK + 1, (SP - MARK) + 1, SV*); | |
345 | ++SP; | |
346 | } | |
347 | PUSHMARK(MARK - 1); | |
33c27489 | 348 | *MARK = SvTIED_obj((SV*)gv, mg); |
68dc0745 | 349 | PUTBACK; |
236988e4 | 350 | ENTER; |
864dbfa3 | 351 | call_method("PRINT", G_SCALAR); |
236988e4 | 352 | LEAVE; |
353 | SPAGAIN; | |
68dc0745 | 354 | MARK = ORIGMARK + 1; |
355 | *MARK = *SP; | |
356 | SP = MARK; | |
236988e4 | 357 | RETURN; |
358 | } | |
a0d0e21e | 359 | if (!(io = GvIO(gv))) { |
599cee73 | 360 | if (ckWARN(WARN_UNOPENED)) { |
748a9306 | 361 | SV* sv = sv_newmortal(); |
af8c498a GS |
362 | gv_efullname3(sv, gv, Nullch); |
363 | Perl_warner(aTHX_ WARN_UNOPENED, "Filehandle %s never opened", | |
364 | SvPV(sv,n_a)); | |
748a9306 | 365 | } |
748a9306 | 366 | SETERRNO(EBADF,RMS$_IFI); |
a0d0e21e LW |
367 | goto just_say_no; |
368 | } | |
369 | else if (!(fp = IoOFP(io))) { | |
599cee73 | 370 | if (ckWARN2(WARN_CLOSED, WARN_IO)) { |
69282e91 GS |
371 | if (IoIFP(io)) { |
372 | SV* sv = sv_newmortal(); | |
373 | gv_efullname3(sv, gv, Nullch); | |
af8c498a GS |
374 | Perl_warner(aTHX_ WARN_IO, |
375 | "Filehandle %s opened only for input", | |
376 | SvPV(sv,n_a)); | |
69282e91 | 377 | } |
599cee73 | 378 | else if (ckWARN(WARN_CLOSED)) |
69282e91 | 379 | report_closed_fh(gv, io, "print", "filehandle"); |
a0d0e21e | 380 | } |
748a9306 | 381 | SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI); |
a0d0e21e LW |
382 | goto just_say_no; |
383 | } | |
384 | else { | |
385 | MARK++; | |
3280af22 | 386 | if (PL_ofslen) { |
a0d0e21e LW |
387 | while (MARK <= SP) { |
388 | if (!do_print(*MARK, fp)) | |
389 | break; | |
390 | MARK++; | |
391 | if (MARK <= SP) { | |
3280af22 | 392 | if (PerlIO_write(fp, PL_ofs, PL_ofslen) == 0 || PerlIO_error(fp)) { |
a0d0e21e LW |
393 | MARK--; |
394 | break; | |
395 | } | |
396 | } | |
397 | } | |
398 | } | |
399 | else { | |
400 | while (MARK <= SP) { | |
401 | if (!do_print(*MARK, fp)) | |
402 | break; | |
403 | MARK++; | |
404 | } | |
405 | } | |
406 | if (MARK <= SP) | |
407 | goto just_say_no; | |
408 | else { | |
3280af22 NIS |
409 | if (PL_orslen) |
410 | if (PerlIO_write(fp, PL_ors, PL_orslen) == 0 || PerlIO_error(fp)) | |
a0d0e21e LW |
411 | goto just_say_no; |
412 | ||
413 | if (IoFLAGS(io) & IOf_FLUSH) | |
760ac839 | 414 | if (PerlIO_flush(fp) == EOF) |
a0d0e21e LW |
415 | goto just_say_no; |
416 | } | |
417 | } | |
418 | SP = ORIGMARK; | |
3280af22 | 419 | PUSHs(&PL_sv_yes); |
a0d0e21e LW |
420 | RETURN; |
421 | ||
422 | just_say_no: | |
423 | SP = ORIGMARK; | |
3280af22 | 424 | PUSHs(&PL_sv_undef); |
a0d0e21e LW |
425 | RETURN; |
426 | } | |
427 | ||
428 | PP(pp_rv2av) | |
429 | { | |
f5284f61 | 430 | djSP; dTOPss; |
a0d0e21e LW |
431 | AV *av; |
432 | ||
433 | if (SvROK(sv)) { | |
434 | wasref: | |
f5284f61 IZ |
435 | tryAMAGICunDEREF(to_av); |
436 | ||
a0d0e21e LW |
437 | av = (AV*)SvRV(sv); |
438 | if (SvTYPE(av) != SVt_PVAV) | |
cea2e8a9 | 439 | DIE(aTHX_ "Not an ARRAY reference"); |
533c011a | 440 | if (PL_op->op_flags & OPf_REF) { |
f5284f61 | 441 | SETs((SV*)av); |
a0d0e21e LW |
442 | RETURN; |
443 | } | |
444 | } | |
445 | else { | |
446 | if (SvTYPE(sv) == SVt_PVAV) { | |
447 | av = (AV*)sv; | |
533c011a | 448 | if (PL_op->op_flags & OPf_REF) { |
f5284f61 | 449 | SETs((SV*)av); |
a0d0e21e LW |
450 | RETURN; |
451 | } | |
452 | } | |
453 | else { | |
67955e0c | 454 | GV *gv; |
455 | ||
a0d0e21e | 456 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 | 457 | char *sym; |
2d8e6c8d | 458 | STRLEN n_a; |
748a9306 | 459 | |
a0d0e21e LW |
460 | if (SvGMAGICAL(sv)) { |
461 | mg_get(sv); | |
462 | if (SvROK(sv)) | |
463 | goto wasref; | |
464 | } | |
465 | if (!SvOK(sv)) { | |
533c011a NIS |
466 | if (PL_op->op_flags & OPf_REF || |
467 | PL_op->op_private & HINT_STRICT_REFS) | |
cea2e8a9 | 468 | DIE(aTHX_ PL_no_usym, "an ARRAY"); |
599cee73 | 469 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 470 | report_uninit(); |
f5284f61 | 471 | if (GIMME == G_ARRAY) { |
c2444246 | 472 | (void)POPs; |
4633a7c4 | 473 | RETURN; |
f5284f61 IZ |
474 | } |
475 | RETSETUNDEF; | |
a0d0e21e | 476 | } |
2d8e6c8d | 477 | sym = SvPV(sv,n_a); |
35cd451c GS |
478 | if ((PL_op->op_flags & OPf_SPECIAL) && |
479 | !(PL_op->op_flags & OPf_MOD)) | |
480 | { | |
481 | gv = (GV*)gv_fetchpv(sym, FALSE, SVt_PVAV); | |
482 | if (!gv) | |
483 | RETSETUNDEF; | |
484 | } | |
485 | else { | |
486 | if (PL_op->op_private & HINT_STRICT_REFS) | |
cea2e8a9 | 487 | DIE(aTHX_ PL_no_symref, sym, "an ARRAY"); |
35cd451c GS |
488 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVAV); |
489 | } | |
490 | } | |
491 | else { | |
67955e0c | 492 | gv = (GV*)sv; |
a0d0e21e | 493 | } |
67955e0c | 494 | av = GvAVn(gv); |
533c011a | 495 | if (PL_op->op_private & OPpLVAL_INTRO) |
67955e0c | 496 | av = save_ary(gv); |
533c011a | 497 | if (PL_op->op_flags & OPf_REF) { |
f5284f61 | 498 | SETs((SV*)av); |
a0d0e21e LW |
499 | RETURN; |
500 | } | |
501 | } | |
502 | } | |
503 | ||
504 | if (GIMME == G_ARRAY) { | |
505 | I32 maxarg = AvFILL(av) + 1; | |
c2444246 | 506 | (void)POPs; /* XXXX May be optimized away? */ |
93965878 NIS |
507 | EXTEND(SP, maxarg); |
508 | if (SvRMAGICAL(av)) { | |
509 | U32 i; | |
510 | for (i=0; i < maxarg; i++) { | |
511 | SV **svp = av_fetch(av, i, FALSE); | |
3280af22 | 512 | SP[i+1] = (svp) ? *svp : &PL_sv_undef; |
93965878 NIS |
513 | } |
514 | } | |
515 | else { | |
516 | Copy(AvARRAY(av), SP+1, maxarg, SV*); | |
517 | } | |
a0d0e21e LW |
518 | SP += maxarg; |
519 | } | |
520 | else { | |
521 | dTARGET; | |
522 | I32 maxarg = AvFILL(av) + 1; | |
f5284f61 | 523 | SETi(maxarg); |
a0d0e21e LW |
524 | } |
525 | RETURN; | |
526 | } | |
527 | ||
528 | PP(pp_rv2hv) | |
529 | { | |
4e35701f | 530 | djSP; dTOPss; |
a0d0e21e LW |
531 | HV *hv; |
532 | ||
533 | if (SvROK(sv)) { | |
534 | wasref: | |
f5284f61 IZ |
535 | tryAMAGICunDEREF(to_hv); |
536 | ||
a0d0e21e | 537 | hv = (HV*)SvRV(sv); |
c750a3ec | 538 | if (SvTYPE(hv) != SVt_PVHV && SvTYPE(hv) != SVt_PVAV) |
cea2e8a9 | 539 | DIE(aTHX_ "Not a HASH reference"); |
533c011a | 540 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e LW |
541 | SETs((SV*)hv); |
542 | RETURN; | |
543 | } | |
544 | } | |
545 | else { | |
c750a3ec | 546 | if (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) { |
a0d0e21e | 547 | hv = (HV*)sv; |
533c011a | 548 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e LW |
549 | SETs((SV*)hv); |
550 | RETURN; | |
551 | } | |
552 | } | |
553 | else { | |
67955e0c | 554 | GV *gv; |
555 | ||
a0d0e21e | 556 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 | 557 | char *sym; |
2d8e6c8d | 558 | STRLEN n_a; |
748a9306 | 559 | |
a0d0e21e LW |
560 | if (SvGMAGICAL(sv)) { |
561 | mg_get(sv); | |
562 | if (SvROK(sv)) | |
563 | goto wasref; | |
564 | } | |
565 | if (!SvOK(sv)) { | |
533c011a NIS |
566 | if (PL_op->op_flags & OPf_REF || |
567 | PL_op->op_private & HINT_STRICT_REFS) | |
cea2e8a9 | 568 | DIE(aTHX_ PL_no_usym, "a HASH"); |
599cee73 | 569 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 570 | report_uninit(); |
4633a7c4 LW |
571 | if (GIMME == G_ARRAY) { |
572 | SP--; | |
573 | RETURN; | |
574 | } | |
a0d0e21e LW |
575 | RETSETUNDEF; |
576 | } | |
2d8e6c8d | 577 | sym = SvPV(sv,n_a); |
35cd451c GS |
578 | if ((PL_op->op_flags & OPf_SPECIAL) && |
579 | !(PL_op->op_flags & OPf_MOD)) | |
580 | { | |
581 | gv = (GV*)gv_fetchpv(sym, FALSE, SVt_PVHV); | |
582 | if (!gv) | |
583 | RETSETUNDEF; | |
584 | } | |
585 | else { | |
586 | if (PL_op->op_private & HINT_STRICT_REFS) | |
cea2e8a9 | 587 | DIE(aTHX_ PL_no_symref, sym, "a HASH"); |
35cd451c GS |
588 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVHV); |
589 | } | |
590 | } | |
591 | else { | |
67955e0c | 592 | gv = (GV*)sv; |
a0d0e21e | 593 | } |
67955e0c | 594 | hv = GvHVn(gv); |
533c011a | 595 | if (PL_op->op_private & OPpLVAL_INTRO) |
67955e0c | 596 | hv = save_hash(gv); |
533c011a | 597 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e LW |
598 | SETs((SV*)hv); |
599 | RETURN; | |
600 | } | |
601 | } | |
602 | } | |
603 | ||
604 | if (GIMME == G_ARRAY) { /* array wanted */ | |
3280af22 | 605 | *PL_stack_sp = (SV*)hv; |
cea2e8a9 | 606 | return do_kv(); |
a0d0e21e LW |
607 | } |
608 | else { | |
609 | dTARGET; | |
4b154ab5 GA |
610 | if (SvTYPE(hv) == SVt_PVAV) |
611 | hv = avhv_keys((AV*)hv); | |
b9c39e73 | 612 | if (HvFILL(hv)) |
57def98f JH |
613 | Perl_sv_setpvf(aTHX_ TARG, "%"IVdf"/%"IVdf, |
614 | (IV)HvFILL(hv), (IV)HvMAX(hv) + 1); | |
a0d0e21e LW |
615 | else |
616 | sv_setiv(TARG, 0); | |
c750a3ec | 617 | |
a0d0e21e LW |
618 | SETTARG; |
619 | RETURN; | |
620 | } | |
621 | } | |
622 | ||
10c8fecd GS |
623 | STATIC int |
624 | S_do_maybe_phash(pTHX_ AV *ary, SV **lelem, SV **firstlelem, SV **relem, | |
625 | SV **lastrelem) | |
626 | { | |
627 | OP *leftop; | |
10c8fecd GS |
628 | I32 i; |
629 | ||
630 | leftop = ((BINOP*)PL_op)->op_last; | |
631 | assert(leftop); | |
632 | assert(leftop->op_type == OP_NULL && leftop->op_targ == OP_LIST); | |
633 | leftop = ((LISTOP*)leftop)->op_first; | |
634 | assert(leftop); | |
635 | /* Skip PUSHMARK and each element already assigned to. */ | |
636 | for (i = lelem - firstlelem; i > 0; i--) { | |
637 | leftop = leftop->op_sibling; | |
638 | assert(leftop); | |
639 | } | |
640 | if (leftop->op_type != OP_RV2HV) | |
641 | return 0; | |
642 | ||
643 | /* pseudohash */ | |
644 | if (av_len(ary) > 0) | |
645 | av_fill(ary, 0); /* clear all but the fields hash */ | |
646 | if (lastrelem >= relem) { | |
647 | while (relem < lastrelem) { /* gobble up all the rest */ | |
648 | SV *tmpstr; | |
649 | assert(relem[0]); | |
650 | assert(relem[1]); | |
651 | /* Avoid a memory leak when avhv_store_ent dies. */ | |
652 | tmpstr = sv_newmortal(); | |
653 | sv_setsv(tmpstr,relem[1]); /* value */ | |
654 | relem[1] = tmpstr; | |
655 | if (avhv_store_ent(ary,relem[0],tmpstr,0)) | |
d16e9ed9 | 656 | (void)SvREFCNT_inc(tmpstr); |
10c8fecd GS |
657 | if (SvMAGICAL(ary) != 0 && SvSMAGICAL(tmpstr)) |
658 | mg_set(tmpstr); | |
659 | relem += 2; | |
660 | TAINT_NOT; | |
661 | } | |
662 | } | |
663 | if (relem == lastrelem) | |
664 | return 1; | |
665 | return 2; | |
666 | } | |
667 | ||
668 | STATIC void | |
669 | S_do_oddball(pTHX_ HV *hash, SV **relem, SV **firstrelem) | |
670 | { | |
671 | if (*relem) { | |
672 | SV *tmpstr; | |
673 | if (ckWARN(WARN_MISC)) { | |
674 | if (relem == firstrelem && | |
675 | SvROK(*relem) && | |
676 | (SvTYPE(SvRV(*relem)) == SVt_PVAV || | |
677 | SvTYPE(SvRV(*relem)) == SVt_PVHV)) | |
678 | { | |
679 | Perl_warner(aTHX_ WARN_MISC, | |
680 | "Reference found where even-sized list expected"); | |
681 | } | |
682 | else | |
683 | Perl_warner(aTHX_ WARN_MISC, | |
684 | "Odd number of elements in hash assignment"); | |
685 | } | |
686 | if (SvTYPE(hash) == SVt_PVAV) { | |
687 | /* pseudohash */ | |
688 | tmpstr = sv_newmortal(); | |
689 | if (avhv_store_ent((AV*)hash,*relem,tmpstr,0)) | |
d16e9ed9 | 690 | (void)SvREFCNT_inc(tmpstr); |
10c8fecd GS |
691 | if (SvMAGICAL(hash) && SvSMAGICAL(tmpstr)) |
692 | mg_set(tmpstr); | |
693 | } | |
694 | else { | |
695 | HE *didstore; | |
696 | tmpstr = NEWSV(29,0); | |
697 | didstore = hv_store_ent(hash,*relem,tmpstr,0); | |
698 | if (SvMAGICAL(hash)) { | |
699 | if (SvSMAGICAL(tmpstr)) | |
700 | mg_set(tmpstr); | |
701 | if (!didstore) | |
702 | sv_2mortal(tmpstr); | |
703 | } | |
704 | } | |
705 | TAINT_NOT; | |
706 | } | |
707 | } | |
708 | ||
a0d0e21e LW |
709 | PP(pp_aassign) |
710 | { | |
4e35701f | 711 | djSP; |
3280af22 NIS |
712 | SV **lastlelem = PL_stack_sp; |
713 | SV **lastrelem = PL_stack_base + POPMARK; | |
714 | SV **firstrelem = PL_stack_base + POPMARK + 1; | |
a0d0e21e LW |
715 | SV **firstlelem = lastrelem + 1; |
716 | ||
717 | register SV **relem; | |
718 | register SV **lelem; | |
719 | ||
720 | register SV *sv; | |
721 | register AV *ary; | |
722 | ||
54310121 | 723 | I32 gimme; |
a0d0e21e LW |
724 | HV *hash; |
725 | I32 i; | |
726 | int magic; | |
727 | ||
3280af22 | 728 | PL_delaymagic = DM_DELAY; /* catch simultaneous items */ |
a0d0e21e LW |
729 | |
730 | /* If there's a common identifier on both sides we have to take | |
731 | * special care that assigning the identifier on the left doesn't | |
732 | * clobber a value on the right that's used later in the list. | |
733 | */ | |
10c8fecd | 734 | if (PL_op->op_private & (OPpASSIGN_COMMON)) { |
cc5e57d2 | 735 | EXTEND_MORTAL(lastrelem - firstrelem + 1); |
10c8fecd GS |
736 | for (relem = firstrelem; relem <= lastrelem; relem++) { |
737 | /*SUPPRESS 560*/ | |
155aba94 | 738 | if ((sv = *relem)) { |
a1f49e72 | 739 | TAINT_NOT; /* Each item is independent */ |
10c8fecd | 740 | *relem = sv_mortalcopy(sv); |
a1f49e72 | 741 | } |
10c8fecd | 742 | } |
a0d0e21e LW |
743 | } |
744 | ||
745 | relem = firstrelem; | |
746 | lelem = firstlelem; | |
747 | ary = Null(AV*); | |
748 | hash = Null(HV*); | |
10c8fecd | 749 | |
a0d0e21e | 750 | while (lelem <= lastlelem) { |
bbce6d69 | 751 | TAINT_NOT; /* Each item stands on its own, taintwise. */ |
a0d0e21e LW |
752 | sv = *lelem++; |
753 | switch (SvTYPE(sv)) { | |
754 | case SVt_PVAV: | |
755 | ary = (AV*)sv; | |
748a9306 | 756 | magic = SvMAGICAL(ary) != 0; |
10c8fecd GS |
757 | if (PL_op->op_private & OPpASSIGN_HASH) { |
758 | switch (do_maybe_phash(ary, lelem, firstlelem, relem, | |
759 | lastrelem)) | |
760 | { | |
761 | case 0: | |
762 | goto normal_array; | |
763 | case 1: | |
764 | do_oddball((HV*)ary, relem, firstrelem); | |
765 | } | |
766 | relem = lastrelem + 1; | |
767 | break; | |
768 | } | |
769 | normal_array: | |
a0d0e21e | 770 | av_clear(ary); |
7e42bd57 | 771 | av_extend(ary, lastrelem - relem); |
a0d0e21e LW |
772 | i = 0; |
773 | while (relem <= lastrelem) { /* gobble up all the rest */ | |
5117ca91 | 774 | SV **didstore; |
a0d0e21e LW |
775 | sv = NEWSV(28,0); |
776 | assert(*relem); | |
777 | sv_setsv(sv,*relem); | |
778 | *(relem++) = sv; | |
5117ca91 GS |
779 | didstore = av_store(ary,i++,sv); |
780 | if (magic) { | |
fb73857a | 781 | if (SvSMAGICAL(sv)) |
782 | mg_set(sv); | |
5117ca91 | 783 | if (!didstore) |
8127e0e3 | 784 | sv_2mortal(sv); |
5117ca91 | 785 | } |
bbce6d69 | 786 | TAINT_NOT; |
a0d0e21e LW |
787 | } |
788 | break; | |
10c8fecd | 789 | case SVt_PVHV: { /* normal hash */ |
a0d0e21e LW |
790 | SV *tmpstr; |
791 | ||
792 | hash = (HV*)sv; | |
748a9306 | 793 | magic = SvMAGICAL(hash) != 0; |
a0d0e21e LW |
794 | hv_clear(hash); |
795 | ||
796 | while (relem < lastrelem) { /* gobble up all the rest */ | |
5117ca91 | 797 | HE *didstore; |
4633a7c4 | 798 | if (*relem) |
a0d0e21e | 799 | sv = *(relem++); |
4633a7c4 | 800 | else |
3280af22 | 801 | sv = &PL_sv_no, relem++; |
a0d0e21e LW |
802 | tmpstr = NEWSV(29,0); |
803 | if (*relem) | |
804 | sv_setsv(tmpstr,*relem); /* value */ | |
805 | *(relem++) = tmpstr; | |
5117ca91 GS |
806 | didstore = hv_store_ent(hash,sv,tmpstr,0); |
807 | if (magic) { | |
fb73857a | 808 | if (SvSMAGICAL(tmpstr)) |
809 | mg_set(tmpstr); | |
5117ca91 | 810 | if (!didstore) |
8127e0e3 | 811 | sv_2mortal(tmpstr); |
5117ca91 | 812 | } |
bbce6d69 | 813 | TAINT_NOT; |
8e07c86e | 814 | } |
6a0deba8 | 815 | if (relem == lastrelem) { |
10c8fecd | 816 | do_oddball(hash, relem, firstrelem); |
6a0deba8 | 817 | relem++; |
1930e939 | 818 | } |
a0d0e21e LW |
819 | } |
820 | break; | |
821 | default: | |
6fc92669 GS |
822 | if (SvIMMORTAL(sv)) { |
823 | if (relem <= lastrelem) | |
824 | relem++; | |
825 | break; | |
a0d0e21e LW |
826 | } |
827 | if (relem <= lastrelem) { | |
828 | sv_setsv(sv, *relem); | |
829 | *(relem++) = sv; | |
830 | } | |
831 | else | |
3280af22 | 832 | sv_setsv(sv, &PL_sv_undef); |
a0d0e21e LW |
833 | SvSETMAGIC(sv); |
834 | break; | |
835 | } | |
836 | } | |
3280af22 NIS |
837 | if (PL_delaymagic & ~DM_DELAY) { |
838 | if (PL_delaymagic & DM_UID) { | |
a0d0e21e | 839 | #ifdef HAS_SETRESUID |
b28d0864 | 840 | (void)setresuid(PL_uid,PL_euid,(Uid_t)-1); |
56febc5e AD |
841 | #else |
842 | # ifdef HAS_SETREUID | |
3280af22 | 843 | (void)setreuid(PL_uid,PL_euid); |
56febc5e AD |
844 | # else |
845 | # ifdef HAS_SETRUID | |
b28d0864 NIS |
846 | if ((PL_delaymagic & DM_UID) == DM_RUID) { |
847 | (void)setruid(PL_uid); | |
848 | PL_delaymagic &= ~DM_RUID; | |
a0d0e21e | 849 | } |
56febc5e AD |
850 | # endif /* HAS_SETRUID */ |
851 | # ifdef HAS_SETEUID | |
b28d0864 NIS |
852 | if ((PL_delaymagic & DM_UID) == DM_EUID) { |
853 | (void)seteuid(PL_uid); | |
854 | PL_delaymagic &= ~DM_EUID; | |
a0d0e21e | 855 | } |
56febc5e | 856 | # endif /* HAS_SETEUID */ |
b28d0864 NIS |
857 | if (PL_delaymagic & DM_UID) { |
858 | if (PL_uid != PL_euid) | |
cea2e8a9 | 859 | DIE(aTHX_ "No setreuid available"); |
b28d0864 | 860 | (void)PerlProc_setuid(PL_uid); |
a0d0e21e | 861 | } |
56febc5e AD |
862 | # endif /* HAS_SETREUID */ |
863 | #endif /* HAS_SETRESUID */ | |
d8eceb89 JH |
864 | PL_uid = PerlProc_getuid(); |
865 | PL_euid = PerlProc_geteuid(); | |
a0d0e21e | 866 | } |
3280af22 | 867 | if (PL_delaymagic & DM_GID) { |
a0d0e21e | 868 | #ifdef HAS_SETRESGID |
b28d0864 | 869 | (void)setresgid(PL_gid,PL_egid,(Gid_t)-1); |
56febc5e AD |
870 | #else |
871 | # ifdef HAS_SETREGID | |
3280af22 | 872 | (void)setregid(PL_gid,PL_egid); |
56febc5e AD |
873 | # else |
874 | # ifdef HAS_SETRGID | |
b28d0864 NIS |
875 | if ((PL_delaymagic & DM_GID) == DM_RGID) { |
876 | (void)setrgid(PL_gid); | |
877 | PL_delaymagic &= ~DM_RGID; | |
a0d0e21e | 878 | } |
56febc5e AD |
879 | # endif /* HAS_SETRGID */ |
880 | # ifdef HAS_SETEGID | |
b28d0864 NIS |
881 | if ((PL_delaymagic & DM_GID) == DM_EGID) { |
882 | (void)setegid(PL_gid); | |
883 | PL_delaymagic &= ~DM_EGID; | |
a0d0e21e | 884 | } |
56febc5e | 885 | # endif /* HAS_SETEGID */ |
b28d0864 NIS |
886 | if (PL_delaymagic & DM_GID) { |
887 | if (PL_gid != PL_egid) | |
cea2e8a9 | 888 | DIE(aTHX_ "No setregid available"); |
b28d0864 | 889 | (void)PerlProc_setgid(PL_gid); |
a0d0e21e | 890 | } |
56febc5e AD |
891 | # endif /* HAS_SETREGID */ |
892 | #endif /* HAS_SETRESGID */ | |
d8eceb89 JH |
893 | PL_gid = PerlProc_getgid(); |
894 | PL_egid = PerlProc_getegid(); | |
a0d0e21e | 895 | } |
3280af22 | 896 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
a0d0e21e | 897 | } |
3280af22 | 898 | PL_delaymagic = 0; |
54310121 | 899 | |
900 | gimme = GIMME_V; | |
901 | if (gimme == G_VOID) | |
902 | SP = firstrelem - 1; | |
903 | else if (gimme == G_SCALAR) { | |
904 | dTARGET; | |
905 | SP = firstrelem; | |
906 | SETi(lastrelem - firstrelem + 1); | |
907 | } | |
908 | else { | |
a0d0e21e LW |
909 | if (ary || hash) |
910 | SP = lastrelem; | |
911 | else | |
912 | SP = firstrelem + (lastlelem - firstlelem); | |
0c8c7a05 | 913 | lelem = firstlelem + (relem - firstrelem); |
5f05dabc | 914 | while (relem <= SP) |
3280af22 | 915 | *relem++ = (lelem <= lastlelem) ? *lelem++ : &PL_sv_undef; |
a0d0e21e | 916 | } |
54310121 | 917 | RETURN; |
a0d0e21e LW |
918 | } |
919 | ||
8782bef2 GB |
920 | PP(pp_qr) |
921 | { | |
922 | djSP; | |
923 | register PMOP *pm = cPMOP; | |
924 | SV *rv = sv_newmortal(); | |
57668c4d | 925 | SV *sv = newSVrv(rv, "Regexp"); |
8782bef2 GB |
926 | sv_magic(sv,(SV*)ReREFCNT_inc(pm->op_pmregexp),'r',0,0); |
927 | RETURNX(PUSHs(rv)); | |
928 | } | |
929 | ||
a0d0e21e LW |
930 | PP(pp_match) |
931 | { | |
4e35701f | 932 | djSP; dTARG; |
a0d0e21e LW |
933 | register PMOP *pm = cPMOP; |
934 | register char *t; | |
935 | register char *s; | |
936 | char *strend; | |
937 | I32 global; | |
f722798b IZ |
938 | I32 r_flags = REXEC_CHECKED; |
939 | char *truebase; /* Start of string */ | |
d9f97599 | 940 | register REGEXP *rx = pm->op_pmregexp; |
b3eb6a9b | 941 | bool rxtainted; |
a0d0e21e LW |
942 | I32 gimme = GIMME; |
943 | STRLEN len; | |
748a9306 | 944 | I32 minmatch = 0; |
3280af22 | 945 | I32 oldsave = PL_savestack_ix; |
f86702cc | 946 | I32 update_minmatch = 1; |
e60df1fa | 947 | I32 had_zerolen = 0; |
a0d0e21e | 948 | |
533c011a | 949 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e LW |
950 | TARG = POPs; |
951 | else { | |
54b9620d | 952 | TARG = DEFSV; |
a0d0e21e LW |
953 | EXTEND(SP,1); |
954 | } | |
c277df42 | 955 | PUTBACK; /* EVAL blocks need stack_sp. */ |
a0d0e21e LW |
956 | s = SvPV(TARG, len); |
957 | strend = s + len; | |
958 | if (!s) | |
cea2e8a9 | 959 | DIE(aTHX_ "panic: do_match"); |
b3eb6a9b | 960 | rxtainted = ((pm->op_pmdynflags & PMdf_TAINTED) || |
3280af22 | 961 | (PL_tainted && (pm->op_pmflags & PMf_RETAINT))); |
9212bbba | 962 | TAINT_NOT; |
a0d0e21e | 963 | |
48c036b1 | 964 | if (pm->op_pmdynflags & PMdf_USED) { |
c277df42 | 965 | failure: |
a0d0e21e LW |
966 | if (gimme == G_ARRAY) |
967 | RETURN; | |
968 | RETPUSHNO; | |
969 | } | |
970 | ||
3280af22 NIS |
971 | if (!rx->prelen && PL_curpm) { |
972 | pm = PL_curpm; | |
d9f97599 | 973 | rx = pm->op_pmregexp; |
a0d0e21e | 974 | } |
d9f97599 | 975 | if (rx->minlen > len) goto failure; |
c277df42 | 976 | |
a0d0e21e | 977 | truebase = t = s; |
ad94a511 IZ |
978 | |
979 | /* XXXX What part of this is needed with true \G-support? */ | |
155aba94 | 980 | if ((global = pm->op_pmflags & PMf_GLOBAL)) { |
cf93c79d | 981 | rx->startp[0] = -1; |
a0d0e21e LW |
982 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
983 | MAGIC* mg = mg_find(TARG, 'g'); | |
565764a8 | 984 | if (mg && mg->mg_len >= 0) { |
b7a35066 | 985 | if (!(rx->reganch & ROPT_GPOS_SEEN)) |
cf93c79d | 986 | rx->endp[0] = rx->startp[0] = mg->mg_len; |
0ef3e39e HS |
987 | else if (rx->reganch & ROPT_ANCH_GPOS) { |
988 | r_flags |= REXEC_IGNOREPOS; | |
cf93c79d | 989 | rx->endp[0] = rx->startp[0] = mg->mg_len; |
0ef3e39e | 990 | } |
748a9306 | 991 | minmatch = (mg->mg_flags & MGf_MINMATCH); |
f86702cc | 992 | update_minmatch = 0; |
748a9306 | 993 | } |
a0d0e21e LW |
994 | } |
995 | } | |
0ef3e39e HS |
996 | if ((gimme != G_ARRAY && !global && rx->nparens) |
997 | || SvTEMP(TARG) || PL_sawampersand) | |
998 | r_flags |= REXEC_COPY_STR; | |
f722798b | 999 | if (SvSCREAM(TARG)) |
22e551b9 IZ |
1000 | r_flags |= REXEC_SCREAM; |
1001 | ||
a0d0e21e | 1002 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
3280af22 NIS |
1003 | SAVEINT(PL_multiline); |
1004 | PL_multiline = pm->op_pmflags & PMf_MULTILINE; | |
a0d0e21e LW |
1005 | } |
1006 | ||
1007 | play_it_again: | |
cf93c79d IZ |
1008 | if (global && rx->startp[0] != -1) { |
1009 | t = s = rx->endp[0] + truebase; | |
d9f97599 | 1010 | if ((s + rx->minlen) > strend) |
a0d0e21e | 1011 | goto nope; |
f86702cc | 1012 | if (update_minmatch++) |
e60df1fa | 1013 | minmatch = had_zerolen; |
a0d0e21e | 1014 | } |
f722798b IZ |
1015 | if (rx->reganch & RE_USE_INTUIT) { |
1016 | s = CALLREG_INTUIT_START(aTHX_ rx, TARG, s, strend, r_flags, NULL); | |
1017 | ||
1018 | if (!s) | |
1019 | goto nope; | |
1020 | if ( (rx->reganch & ROPT_CHECK_ALL) | |
1021 | && !PL_sawampersand | |
1022 | && ((rx->reganch & ROPT_NOSCAN) | |
1023 | || !((rx->reganch & RE_INTUIT_TAIL) | |
05b4157f GS |
1024 | && (r_flags & REXEC_SCREAM))) |
1025 | && !SvROK(TARG)) /* Cannot trust since INTUIT cannot guess ^ */ | |
f722798b | 1026 | goto yup; |
a0d0e21e | 1027 | } |
cea2e8a9 | 1028 | if (CALLREGEXEC(aTHX_ rx, s, strend, truebase, minmatch, TARG, NULL, r_flags)) |
bbce6d69 | 1029 | { |
3280af22 | 1030 | PL_curpm = pm; |
a0d0e21e | 1031 | if (pm->op_pmflags & PMf_ONCE) |
48c036b1 | 1032 | pm->op_pmdynflags |= PMdf_USED; |
a0d0e21e LW |
1033 | goto gotcha; |
1034 | } | |
1035 | else | |
1036 | goto ret_no; | |
1037 | /*NOTREACHED*/ | |
1038 | ||
1039 | gotcha: | |
72311751 GS |
1040 | if (rxtainted) |
1041 | RX_MATCH_TAINTED_on(rx); | |
1042 | TAINT_IF(RX_MATCH_TAINTED(rx)); | |
a0d0e21e LW |
1043 | if (gimme == G_ARRAY) { |
1044 | I32 iters, i, len; | |
1045 | ||
d9f97599 | 1046 | iters = rx->nparens; |
a0d0e21e LW |
1047 | if (global && !iters) |
1048 | i = 1; | |
1049 | else | |
1050 | i = 0; | |
c277df42 | 1051 | SPAGAIN; /* EVAL blocks could move the stack. */ |
a0d0e21e | 1052 | EXTEND(SP, iters + i); |
bbce6d69 | 1053 | EXTEND_MORTAL(iters + i); |
a0d0e21e LW |
1054 | for (i = !i; i <= iters; i++) { |
1055 | PUSHs(sv_newmortal()); | |
1056 | /*SUPPRESS 560*/ | |
cf93c79d IZ |
1057 | if ((rx->startp[i] != -1) && rx->endp[i] != -1 ) { |
1058 | len = rx->endp[i] - rx->startp[i]; | |
1059 | s = rx->startp[i] + truebase; | |
a0d0e21e | 1060 | sv_setpvn(*SP, s, len); |
a197cbdd GS |
1061 | if ((pm->op_pmdynflags & PMdf_UTF8) && !IN_BYTE) { |
1062 | SvUTF8_on(*SP); | |
1063 | sv_utf8_downgrade(*SP, TRUE); | |
1064 | } | |
a0d0e21e LW |
1065 | } |
1066 | } | |
1067 | if (global) { | |
cf93c79d IZ |
1068 | had_zerolen = (rx->startp[0] != -1 |
1069 | && rx->startp[0] == rx->endp[0]); | |
c277df42 | 1070 | PUTBACK; /* EVAL blocks may use stack */ |
cf93c79d | 1071 | r_flags |= REXEC_IGNOREPOS | REXEC_NOT_FIRST; |
a0d0e21e LW |
1072 | goto play_it_again; |
1073 | } | |
f7e33566 | 1074 | else if (!iters) |
bde848c5 | 1075 | XPUSHs(&PL_sv_yes); |
4633a7c4 | 1076 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1077 | RETURN; |
1078 | } | |
1079 | else { | |
1080 | if (global) { | |
1081 | MAGIC* mg = 0; | |
1082 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) | |
1083 | mg = mg_find(TARG, 'g'); | |
1084 | if (!mg) { | |
1085 | sv_magic(TARG, (SV*)0, 'g', Nullch, 0); | |
1086 | mg = mg_find(TARG, 'g'); | |
1087 | } | |
cf93c79d IZ |
1088 | if (rx->startp[0] != -1) { |
1089 | mg->mg_len = rx->endp[0]; | |
d9f97599 | 1090 | if (rx->startp[0] == rx->endp[0]) |
748a9306 LW |
1091 | mg->mg_flags |= MGf_MINMATCH; |
1092 | else | |
1093 | mg->mg_flags &= ~MGf_MINMATCH; | |
1094 | } | |
a0d0e21e | 1095 | } |
4633a7c4 | 1096 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1097 | RETPUSHYES; |
1098 | } | |
1099 | ||
f722798b | 1100 | yup: /* Confirmed by INTUIT */ |
72311751 GS |
1101 | if (rxtainted) |
1102 | RX_MATCH_TAINTED_on(rx); | |
1103 | TAINT_IF(RX_MATCH_TAINTED(rx)); | |
3280af22 | 1104 | PL_curpm = pm; |
a0d0e21e | 1105 | if (pm->op_pmflags & PMf_ONCE) |
48c036b1 | 1106 | pm->op_pmdynflags |= PMdf_USED; |
cf93c79d IZ |
1107 | if (RX_MATCH_COPIED(rx)) |
1108 | Safefree(rx->subbeg); | |
1109 | RX_MATCH_COPIED_off(rx); | |
1110 | rx->subbeg = Nullch; | |
a0d0e21e | 1111 | if (global) { |
d9f97599 | 1112 | rx->subbeg = truebase; |
cf93c79d | 1113 | rx->startp[0] = s - truebase; |
f722798b | 1114 | rx->endp[0] = s - truebase + rx->minlen; |
cf93c79d | 1115 | rx->sublen = strend - truebase; |
a0d0e21e | 1116 | goto gotcha; |
cf93c79d | 1117 | } |
3280af22 | 1118 | if (PL_sawampersand) { |
cf93c79d | 1119 | I32 off; |
a0d0e21e | 1120 | |
cf93c79d IZ |
1121 | rx->subbeg = savepvn(t, strend - t); |
1122 | rx->sublen = strend - t; | |
1123 | RX_MATCH_COPIED_on(rx); | |
1124 | off = rx->startp[0] = s - t; | |
f722798b | 1125 | rx->endp[0] = off + rx->minlen; |
cf93c79d IZ |
1126 | } |
1127 | else { /* startp/endp are used by @- @+. */ | |
1128 | rx->startp[0] = s - truebase; | |
f722798b | 1129 | rx->endp[0] = s - truebase + rx->minlen; |
a0d0e21e | 1130 | } |
fc19f8d0 | 1131 | rx->nparens = rx->lastparen = 0; /* used by @- and @+ */ |
4633a7c4 | 1132 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1133 | RETPUSHYES; |
1134 | ||
1135 | nope: | |
a0d0e21e | 1136 | ret_no: |
c90c0ff4 | 1137 | if (global && !(pm->op_pmflags & PMf_CONTINUE)) { |
a0d0e21e LW |
1138 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
1139 | MAGIC* mg = mg_find(TARG, 'g'); | |
1140 | if (mg) | |
565764a8 | 1141 | mg->mg_len = -1; |
a0d0e21e LW |
1142 | } |
1143 | } | |
4633a7c4 | 1144 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1145 | if (gimme == G_ARRAY) |
1146 | RETURN; | |
1147 | RETPUSHNO; | |
1148 | } | |
1149 | ||
1150 | OP * | |
864dbfa3 | 1151 | Perl_do_readline(pTHX) |
a0d0e21e LW |
1152 | { |
1153 | dSP; dTARGETSTACKED; | |
1154 | register SV *sv; | |
1155 | STRLEN tmplen = 0; | |
1156 | STRLEN offset; | |
760ac839 | 1157 | PerlIO *fp; |
3280af22 | 1158 | register IO *io = GvIO(PL_last_in_gv); |
533c011a | 1159 | register I32 type = PL_op->op_type; |
54310121 | 1160 | I32 gimme = GIMME_V; |
e79b0511 | 1161 | MAGIC *mg; |
a0d0e21e | 1162 | |
155aba94 | 1163 | if ((mg = SvTIED_mg((SV*)PL_last_in_gv, 'q'))) { |
e79b0511 | 1164 | PUSHMARK(SP); |
33c27489 | 1165 | XPUSHs(SvTIED_obj((SV*)PL_last_in_gv, mg)); |
e79b0511 | 1166 | PUTBACK; |
1167 | ENTER; | |
864dbfa3 | 1168 | call_method("READLINE", gimme); |
e79b0511 | 1169 | LEAVE; |
1170 | SPAGAIN; | |
54310121 | 1171 | if (gimme == G_SCALAR) |
1172 | SvSetMagicSV_nosteal(TARG, TOPs); | |
e79b0511 | 1173 | RETURN; |
1174 | } | |
a0d0e21e LW |
1175 | fp = Nullfp; |
1176 | if (io) { | |
1177 | fp = IoIFP(io); | |
1178 | if (!fp) { | |
1179 | if (IoFLAGS(io) & IOf_ARGV) { | |
1180 | if (IoFLAGS(io) & IOf_START) { | |
a0d0e21e | 1181 | IoLINES(io) = 0; |
3280af22 | 1182 | if (av_len(GvAVn(PL_last_in_gv)) < 0) { |
1d7c1841 | 1183 | IoFLAGS(io) &= ~IOf_START; |
9d116dd7 | 1184 | do_open(PL_last_in_gv,"-",1,FALSE,O_RDONLY,0,Nullfp); |
3280af22 NIS |
1185 | sv_setpvn(GvSV(PL_last_in_gv), "-", 1); |
1186 | SvSETMAGIC(GvSV(PL_last_in_gv)); | |
a2008d6d GS |
1187 | fp = IoIFP(io); |
1188 | goto have_fp; | |
a0d0e21e LW |
1189 | } |
1190 | } | |
3280af22 | 1191 | fp = nextargv(PL_last_in_gv); |
a0d0e21e | 1192 | if (!fp) { /* Note: fp != IoIFP(io) */ |
3280af22 | 1193 | (void)do_close(PL_last_in_gv, FALSE); /* now it does*/ |
a0d0e21e LW |
1194 | } |
1195 | } | |
1196 | else if (type == OP_GLOB) { | |
1197 | SV *tmpcmd = NEWSV(55, 0); | |
1198 | SV *tmpglob = POPs; | |
1199 | ENTER; | |
1200 | SAVEFREESV(tmpcmd); | |
1201 | #ifdef VMS /* expand the wildcards right here, rather than opening a pipe, */ | |
1202 | /* since spawning off a process is a real performance hit */ | |
1203 | { | |
1204 | #include <descrip.h> | |
1205 | #include <lib$routines.h> | |
1206 | #include <nam.h> | |
1207 | #include <rmsdef.h> | |
1208 | char rslt[NAM$C_MAXRSS+1+sizeof(unsigned short int)] = {'\0','\0'}; | |
1209 | char vmsspec[NAM$C_MAXRSS+1]; | |
1210 | char *rstr = rslt + sizeof(unsigned short int), *begin, *end, *cp; | |
1211 | char tmpfnam[L_tmpnam] = "SYS$SCRATCH:"; | |
1212 | $DESCRIPTOR(dfltdsc,"SYS$DISK:[]*.*;"); | |
760ac839 | 1213 | PerlIO *tmpfp; |
a0d0e21e LW |
1214 | STRLEN i; |
1215 | struct dsc$descriptor_s wilddsc | |
1216 | = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0}; | |
1217 | struct dsc$descriptor_vs rsdsc | |
1218 | = {sizeof rslt, DSC$K_DTYPE_VT, DSC$K_CLASS_VS, rslt}; | |
1219 | unsigned long int cxt = 0, sts = 0, ok = 1, hasdir = 0, hasver = 0, isunix = 0; | |
1220 | ||
1221 | /* We could find out if there's an explicit dev/dir or version | |
1222 | by peeking into lib$find_file's internal context at | |
1223 | ((struct NAM *)((struct FAB *)cxt)->fab$l_nam)->nam$l_fnb | |
1224 | but that's unsupported, so I don't want to do it now and | |
1225 | have it bite someone in the future. */ | |
6ad3d225 | 1226 | strcat(tmpfnam,PerlLIO_tmpnam(NULL)); |
a0d0e21e LW |
1227 | cp = SvPV(tmpglob,i); |
1228 | for (; i; i--) { | |
1229 | if (cp[i] == ';') hasver = 1; | |
1230 | if (cp[i] == '.') { | |
1231 | if (sts) hasver = 1; | |
1232 | else sts = 1; | |
1233 | } | |
1234 | if (cp[i] == '/') { | |
1235 | hasdir = isunix = 1; | |
1236 | break; | |
748a9306 | 1237 | } |
a0d0e21e LW |
1238 | if (cp[i] == ']' || cp[i] == '>' || cp[i] == ':') { |
1239 | hasdir = 1; | |
1240 | break; | |
1241 | } | |
1242 | } | |
760ac839 | 1243 | if ((tmpfp = PerlIO_open(tmpfnam,"w+","fop=dlt")) != NULL) { |
09b7f37c | 1244 | Stat_t st; |
c6ed36e1 | 1245 | if (!PerlLIO_stat(SvPVX(tmpglob),&st) && S_ISDIR(st.st_mode)) |
09b7f37c CB |
1246 | ok = ((wilddsc.dsc$a_pointer = tovmspath(SvPVX(tmpglob),vmsspec)) != NULL); |
1247 | else ok = ((wilddsc.dsc$a_pointer = tovmsspec(SvPVX(tmpglob),vmsspec)) != NULL); | |
a0d0e21e LW |
1248 | if (ok) wilddsc.dsc$w_length = (unsigned short int) strlen(wilddsc.dsc$a_pointer); |
1249 | while (ok && ((sts = lib$find_file(&wilddsc,&rsdsc,&cxt, | |
1250 | &dfltdsc,NULL,NULL,NULL))&1)) { | |
1251 | end = rstr + (unsigned long int) *rslt; | |
1252 | if (!hasver) while (*end != ';') end--; | |
1253 | *(end++) = '\n'; *end = '\0'; | |
1254 | for (cp = rstr; *cp; cp++) *cp = _tolower(*cp); | |
1255 | if (hasdir) { | |
f86702cc | 1256 | if (isunix) trim_unixpath(rstr,SvPVX(tmpglob),1); |
a0d0e21e LW |
1257 | begin = rstr; |
1258 | } | |
1259 | else { | |
1260 | begin = end; | |
1261 | while (*(--begin) != ']' && *begin != '>') ; | |
1262 | ++begin; | |
1263 | } | |
760ac839 | 1264 | ok = (PerlIO_puts(tmpfp,begin) != EOF); |
a0d0e21e LW |
1265 | } |
1266 | if (cxt) (void)lib$find_file_end(&cxt); | |
748a9306 LW |
1267 | if (ok && sts != RMS$_NMF && |
1268 | sts != RMS$_DNF && sts != RMS$_FNF) ok = 0; | |
a0d0e21e | 1269 | if (!ok) { |
c07a80fd | 1270 | if (!(sts & 1)) { |
1271 | SETERRNO((sts == RMS$_SYN ? EINVAL : EVMSERR),sts); | |
1272 | } | |
760ac839 | 1273 | PerlIO_close(tmpfp); |
a0d0e21e LW |
1274 | fp = NULL; |
1275 | } | |
1276 | else { | |
760ac839 | 1277 | PerlIO_rewind(tmpfp); |
a0d0e21e LW |
1278 | IoTYPE(io) = '<'; |
1279 | IoIFP(io) = fp = tmpfp; | |
1e422769 | 1280 | IoFLAGS(io) &= ~IOf_UNTAINT; /* maybe redundant */ |
a0d0e21e LW |
1281 | } |
1282 | } | |
1283 | } | |
1284 | #else /* !VMS */ | |
1d7c1841 GS |
1285 | #ifdef MACOS_TRADITIONAL |
1286 | sv_setpv(tmpcmd, "glob "); | |
1287 | sv_catsv(tmpcmd, tmpglob); | |
1288 | sv_catpv(tmpcmd, " |"); | |
1289 | #else | |
a0d0e21e | 1290 | #ifdef DOSISH |
67955e0c | 1291 | #ifdef OS2 |
1292 | sv_setpv(tmpcmd, "for a in "); | |
1293 | sv_catsv(tmpcmd, tmpglob); | |
1294 | sv_catpv(tmpcmd, "; do echo \"$a\\0\\c\"; done |"); | |
1295 | #else | |
39e571d4 LM |
1296 | #ifdef DJGPP |
1297 | sv_setpv(tmpcmd, "/dev/dosglob/"); /* File System Extension */ | |
1298 | sv_catsv(tmpcmd, tmpglob); | |
1299 | #else | |
a0d0e21e LW |
1300 | sv_setpv(tmpcmd, "perlglob "); |
1301 | sv_catsv(tmpcmd, tmpglob); | |
1302 | sv_catpv(tmpcmd, " |"); | |
39e571d4 | 1303 | #endif /* !DJGPP */ |
67955e0c | 1304 | #endif /* !OS2 */ |
1305 | #else /* !DOSISH */ | |
1306 | #if defined(CSH) | |
3280af22 | 1307 | sv_setpvn(tmpcmd, PL_cshname, PL_cshlen); |
a0d0e21e LW |
1308 | sv_catpv(tmpcmd, " -cf 'set nonomatch; glob "); |
1309 | sv_catsv(tmpcmd, tmpglob); | |
16d20bd9 | 1310 | sv_catpv(tmpcmd, "' 2>/dev/null |"); |
a0d0e21e LW |
1311 | #else |
1312 | sv_setpv(tmpcmd, "echo "); | |
1313 | sv_catsv(tmpcmd, tmpglob); | |
1314 | #if 'z' - 'a' == 25 | |
1315 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\012\\012\\012\\012'|"); | |
1316 | #else | |
1317 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\n\\n\\n\\n'|"); | |
1318 | #endif | |
1319 | #endif /* !CSH */ | |
67955e0c | 1320 | #endif /* !DOSISH */ |
1d7c1841 | 1321 | #endif /* MACOS_TRADITIONAL */ |
3280af22 | 1322 | (void)do_open(PL_last_in_gv, SvPVX(tmpcmd), SvCUR(tmpcmd), |
9d116dd7 | 1323 | FALSE, O_RDONLY, 0, Nullfp); |
a0d0e21e LW |
1324 | fp = IoIFP(io); |
1325 | #endif /* !VMS */ | |
1326 | LEAVE; | |
1327 | } | |
1328 | } | |
1329 | else if (type == OP_GLOB) | |
1330 | SP--; | |
af8c498a GS |
1331 | else if (ckWARN(WARN_IO) /* stdout/stderr or other write fh */ |
1332 | && (IoTYPE(io) == '>' || fp == PerlIO_stdout() | |
1333 | || fp == PerlIO_stderr())) | |
1334 | { | |
1335 | SV* sv = sv_newmortal(); | |
1336 | gv_efullname3(sv, PL_last_in_gv, Nullch); | |
1337 | Perl_warner(aTHX_ WARN_IO, "Filehandle %s opened only for output", | |
1338 | SvPV_nolen(sv)); | |
1339 | } | |
a0d0e21e LW |
1340 | } |
1341 | if (!fp) { | |
e476b1b5 | 1342 | if (ckWARN2(WARN_GLOB,WARN_CLOSED) && io && !(IoFLAGS(io) & IOf_START)) { |
3f4520fe | 1343 | if (type == OP_GLOB) |
e476b1b5 | 1344 | Perl_warner(aTHX_ WARN_GLOB, |
af8c498a GS |
1345 | "glob failed (can't start child: %s)", |
1346 | Strerror(errno)); | |
69282e91 GS |
1347 | else |
1348 | report_closed_fh(PL_last_in_gv, io, "readline", "filehandle"); | |
3f4520fe | 1349 | } |
54310121 | 1350 | if (gimme == G_SCALAR) { |
a0d0e21e LW |
1351 | (void)SvOK_off(TARG); |
1352 | PUSHTARG; | |
1353 | } | |
1354 | RETURN; | |
1355 | } | |
a2008d6d | 1356 | have_fp: |
54310121 | 1357 | if (gimme == G_SCALAR) { |
a0d0e21e | 1358 | sv = TARG; |
9607fc9c | 1359 | if (SvROK(sv)) |
1360 | sv_unref(sv); | |
a0d0e21e LW |
1361 | (void)SvUPGRADE(sv, SVt_PV); |
1362 | tmplen = SvLEN(sv); /* remember if already alloced */ | |
1363 | if (!tmplen) | |
1364 | Sv_Grow(sv, 80); /* try short-buffering it */ | |
1365 | if (type == OP_RCATLINE) | |
1366 | offset = SvCUR(sv); | |
1367 | else | |
1368 | offset = 0; | |
1369 | } | |
54310121 | 1370 | else { |
1371 | sv = sv_2mortal(NEWSV(57, 80)); | |
1372 | offset = 0; | |
1373 | } | |
fbad3eb5 | 1374 | |
684bef36 | 1375 | /* delay EOF state for a snarfed empty file */ |
fbad3eb5 | 1376 | #define SNARF_EOF(gimme,rs,io,sv) \ |
684bef36 GS |
1377 | (gimme != G_SCALAR || SvCUR(sv) \ |
1378 | || !RsSNARF(rs) || (IoFLAGS(io) & IOf_NOLINE) \ | |
1379 | || ((IoFLAGS(io) |= IOf_NOLINE), FALSE)) | |
fbad3eb5 | 1380 | |
a0d0e21e | 1381 | for (;;) { |
fbad3eb5 GS |
1382 | if (!sv_gets(sv, fp, offset) |
1383 | && (type == OP_GLOB || SNARF_EOF(gimme, PL_rs, io, sv))) | |
1384 | { | |
760ac839 | 1385 | PerlIO_clearerr(fp); |
a0d0e21e | 1386 | if (IoFLAGS(io) & IOf_ARGV) { |
3280af22 | 1387 | fp = nextargv(PL_last_in_gv); |
a0d0e21e LW |
1388 | if (fp) |
1389 | continue; | |
3280af22 | 1390 | (void)do_close(PL_last_in_gv, FALSE); |
a0d0e21e LW |
1391 | } |
1392 | else if (type == OP_GLOB) { | |
e476b1b5 GS |
1393 | if (!do_close(PL_last_in_gv, FALSE) && ckWARN(WARN_GLOB)) { |
1394 | Perl_warner(aTHX_ WARN_GLOB, | |
4eb79ab5 | 1395 | "glob failed (child exited with status %d%s)", |
894356b3 | 1396 | (int)(STATUS_CURRENT >> 8), |
cf494569 | 1397 | (STATUS_CURRENT & 0x80) ? ", core dumped" : ""); |
4eb79ab5 | 1398 | } |
a0d0e21e | 1399 | } |
54310121 | 1400 | if (gimme == G_SCALAR) { |
a0d0e21e LW |
1401 | (void)SvOK_off(TARG); |
1402 | PUSHTARG; | |
1403 | } | |
1404 | RETURN; | |
1405 | } | |
bbce6d69 | 1406 | /* This should not be marked tainted if the fp is marked clean */ |
1407 | if (!(IoFLAGS(io) & IOf_UNTAINT)) { | |
1408 | TAINT; | |
1409 | SvTAINTED_on(sv); | |
1410 | } | |
a0d0e21e | 1411 | IoLINES(io)++; |
71be2cbc | 1412 | SvSETMAGIC(sv); |
a0d0e21e | 1413 | XPUSHs(sv); |
a0d0e21e LW |
1414 | if (type == OP_GLOB) { |
1415 | char *tmps; | |
1416 | ||
3280af22 | 1417 | if (SvCUR(sv) > 0 && SvCUR(PL_rs) > 0) { |
c07a80fd | 1418 | tmps = SvEND(sv) - 1; |
3280af22 | 1419 | if (*tmps == *SvPVX(PL_rs)) { |
c07a80fd | 1420 | *tmps = '\0'; |
1421 | SvCUR(sv)--; | |
1422 | } | |
1423 | } | |
a0d0e21e LW |
1424 | for (tmps = SvPVX(sv); *tmps; tmps++) |
1425 | if (!isALPHA(*tmps) && !isDIGIT(*tmps) && | |
1426 | strchr("$&*(){}[]'\";\\|?<>~`", *tmps)) | |
1427 | break; | |
43384a1a | 1428 | if (*tmps && PerlLIO_lstat(SvPVX(sv), &PL_statbuf) < 0) { |
a0d0e21e LW |
1429 | (void)POPs; /* Unmatched wildcard? Chuck it... */ |
1430 | continue; | |
1431 | } | |
1432 | } | |
54310121 | 1433 | if (gimme == G_ARRAY) { |
a0d0e21e LW |
1434 | if (SvLEN(sv) - SvCUR(sv) > 20) { |
1435 | SvLEN_set(sv, SvCUR(sv)+1); | |
1436 | Renew(SvPVX(sv), SvLEN(sv), char); | |
1437 | } | |
1438 | sv = sv_2mortal(NEWSV(58, 80)); | |
1439 | continue; | |
1440 | } | |
54310121 | 1441 | else if (gimme == G_SCALAR && !tmplen && SvLEN(sv) - SvCUR(sv) > 80) { |
a0d0e21e LW |
1442 | /* try to reclaim a bit of scalar space (only on 1st alloc) */ |
1443 | if (SvCUR(sv) < 60) | |
1444 | SvLEN_set(sv, 80); | |
1445 | else | |
1446 | SvLEN_set(sv, SvCUR(sv)+40); /* allow some slop */ | |
1447 | Renew(SvPVX(sv), SvLEN(sv), char); | |
1448 | } | |
1449 | RETURN; | |
1450 | } | |
1451 | } | |
1452 | ||
1453 | PP(pp_enter) | |
1454 | { | |
4e35701f | 1455 | djSP; |
c09156bb | 1456 | register PERL_CONTEXT *cx; |
533c011a | 1457 | I32 gimme = OP_GIMME(PL_op, -1); |
a0d0e21e | 1458 | |
54310121 | 1459 | if (gimme == -1) { |
1460 | if (cxstack_ix >= 0) | |
1461 | gimme = cxstack[cxstack_ix].blk_gimme; | |
1462 | else | |
1463 | gimme = G_SCALAR; | |
1464 | } | |
a0d0e21e LW |
1465 | |
1466 | ENTER; | |
1467 | ||
1468 | SAVETMPS; | |
924508f0 | 1469 | PUSHBLOCK(cx, CXt_BLOCK, SP); |
a0d0e21e LW |
1470 | |
1471 | RETURN; | |
1472 | } | |
1473 | ||
1474 | PP(pp_helem) | |
1475 | { | |
4e35701f | 1476 | djSP; |
760ac839 | 1477 | HE* he; |
ae77835f | 1478 | SV **svp; |
a0d0e21e | 1479 | SV *keysv = POPs; |
a0d0e21e | 1480 | HV *hv = (HV*)POPs; |
533c011a NIS |
1481 | U32 lval = PL_op->op_flags & OPf_MOD; |
1482 | U32 defer = PL_op->op_private & OPpLVAL_DEFER; | |
be6c24e0 | 1483 | SV *sv; |
a0d0e21e | 1484 | |
ae77835f MB |
1485 | if (SvTYPE(hv) == SVt_PVHV) { |
1486 | he = hv_fetch_ent(hv, keysv, lval && !defer, 0); | |
97fcbf96 | 1487 | svp = he ? &HeVAL(he) : 0; |
ae77835f MB |
1488 | } |
1489 | else if (SvTYPE(hv) == SVt_PVAV) { | |
0ebe0038 | 1490 | if (PL_op->op_private & OPpLVAL_INTRO) |
cea2e8a9 | 1491 | DIE(aTHX_ "Can't localize pseudo-hash element"); |
97fcbf96 | 1492 | svp = avhv_fetch_ent((AV*)hv, keysv, lval && !defer, 0); |
ae77835f | 1493 | } |
c750a3ec | 1494 | else { |
a0d0e21e | 1495 | RETPUSHUNDEF; |
c750a3ec | 1496 | } |
a0d0e21e | 1497 | if (lval) { |
3280af22 | 1498 | if (!svp || *svp == &PL_sv_undef) { |
68dc0745 | 1499 | SV* lv; |
1500 | SV* key2; | |
2d8e6c8d GS |
1501 | if (!defer) { |
1502 | STRLEN n_a; | |
cea2e8a9 | 1503 | DIE(aTHX_ PL_no_helem, SvPV(keysv, n_a)); |
2d8e6c8d | 1504 | } |
68dc0745 | 1505 | lv = sv_newmortal(); |
1506 | sv_upgrade(lv, SVt_PVLV); | |
1507 | LvTYPE(lv) = 'y'; | |
1508 | sv_magic(lv, key2 = newSVsv(keysv), 'y', Nullch, 0); | |
1509 | SvREFCNT_dec(key2); /* sv_magic() increments refcount */ | |
1510 | LvTARG(lv) = SvREFCNT_inc(hv); | |
1511 | LvTARGLEN(lv) = 1; | |
1512 | PUSHs(lv); | |
1513 | RETURN; | |
1514 | } | |
533c011a | 1515 | if (PL_op->op_private & OPpLVAL_INTRO) { |
ae77835f | 1516 | if (HvNAME(hv) && isGV(*svp)) |
533c011a | 1517 | save_gp((GV*)*svp, !(PL_op->op_flags & OPf_SPECIAL)); |
5f05dabc | 1518 | else |
161b7d16 | 1519 | save_helem(hv, keysv, svp); |
5f05dabc | 1520 | } |
533c011a NIS |
1521 | else if (PL_op->op_private & OPpDEREF) |
1522 | vivify_ref(*svp, PL_op->op_private & OPpDEREF); | |
a0d0e21e | 1523 | } |
3280af22 | 1524 | sv = (svp ? *svp : &PL_sv_undef); |
be6c24e0 GS |
1525 | /* This makes C<local $tied{foo} = $tied{foo}> possible. |
1526 | * Pushing the magical RHS on to the stack is useless, since | |
1527 | * that magic is soon destined to be misled by the local(), | |
1528 | * and thus the later pp_sassign() will fail to mg_get() the | |
1529 | * old value. This should also cure problems with delayed | |
1530 | * mg_get()s. GSAR 98-07-03 */ | |
1531 | if (!lval && SvGMAGICAL(sv)) | |
1532 | sv = sv_mortalcopy(sv); | |
1533 | PUSHs(sv); | |
a0d0e21e LW |
1534 | RETURN; |
1535 | } | |
1536 | ||
1537 | PP(pp_leave) | |
1538 | { | |
4e35701f | 1539 | djSP; |
c09156bb | 1540 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
1541 | register SV **mark; |
1542 | SV **newsp; | |
1543 | PMOP *newpm; | |
1544 | I32 gimme; | |
1545 | ||
533c011a | 1546 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e | 1547 | cx = &cxstack[cxstack_ix]; |
3280af22 | 1548 | cx->blk_oldpm = PL_curpm; /* fake block should preserve $1 et al */ |
a0d0e21e LW |
1549 | } |
1550 | ||
1551 | POPBLOCK(cx,newpm); | |
1552 | ||
533c011a | 1553 | gimme = OP_GIMME(PL_op, -1); |
54310121 | 1554 | if (gimme == -1) { |
1555 | if (cxstack_ix >= 0) | |
1556 | gimme = cxstack[cxstack_ix].blk_gimme; | |
1557 | else | |
1558 | gimme = G_SCALAR; | |
1559 | } | |
a0d0e21e | 1560 | |
a1f49e72 | 1561 | TAINT_NOT; |
54310121 | 1562 | if (gimme == G_VOID) |
1563 | SP = newsp; | |
1564 | else if (gimme == G_SCALAR) { | |
1565 | MARK = newsp + 1; | |
1566 | if (MARK <= SP) | |
1567 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) | |
1568 | *MARK = TOPs; | |
1569 | else | |
1570 | *MARK = sv_mortalcopy(TOPs); | |
a0d0e21e | 1571 | else { |
54310121 | 1572 | MEXTEND(mark,0); |
3280af22 | 1573 | *MARK = &PL_sv_undef; |
a0d0e21e | 1574 | } |
54310121 | 1575 | SP = MARK; |
a0d0e21e | 1576 | } |
54310121 | 1577 | else if (gimme == G_ARRAY) { |
a1f49e72 CS |
1578 | /* in case LEAVE wipes old return values */ |
1579 | for (mark = newsp + 1; mark <= SP; mark++) { | |
1580 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) { | |
a0d0e21e | 1581 | *mark = sv_mortalcopy(*mark); |
a1f49e72 CS |
1582 | TAINT_NOT; /* Each item is independent */ |
1583 | } | |
1584 | } | |
a0d0e21e | 1585 | } |
3280af22 | 1586 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e LW |
1587 | |
1588 | LEAVE; | |
1589 | ||
1590 | RETURN; | |
1591 | } | |
1592 | ||
1593 | PP(pp_iter) | |
1594 | { | |
4e35701f | 1595 | djSP; |
c09156bb | 1596 | register PERL_CONTEXT *cx; |
5f05dabc | 1597 | SV* sv; |
4633a7c4 | 1598 | AV* av; |
1d7c1841 | 1599 | SV **itersvp; |
a0d0e21e | 1600 | |
924508f0 | 1601 | EXTEND(SP, 1); |
a0d0e21e | 1602 | cx = &cxstack[cxstack_ix]; |
6b35e009 | 1603 | if (CxTYPE(cx) != CXt_LOOP) |
cea2e8a9 | 1604 | DIE(aTHX_ "panic: pp_iter"); |
a0d0e21e | 1605 | |
1d7c1841 | 1606 | itersvp = CxITERVAR(cx); |
4633a7c4 | 1607 | av = cx->blk_loop.iterary; |
89ea2908 GA |
1608 | if (SvTYPE(av) != SVt_PVAV) { |
1609 | /* iterate ($min .. $max) */ | |
1610 | if (cx->blk_loop.iterlval) { | |
1611 | /* string increment */ | |
1612 | register SV* cur = cx->blk_loop.iterlval; | |
1613 | STRLEN maxlen; | |
1614 | char *max = SvPV((SV*)av, maxlen); | |
1615 | if (!SvNIOK(cur) && SvCUR(cur) <= maxlen) { | |
eaa5c2d6 | 1616 | #ifndef USE_THREADS /* don't risk potential race */ |
1d7c1841 | 1617 | if (SvREFCNT(*itersvp) == 1 && !SvMAGICAL(*itersvp)) { |
eaa5c2d6 | 1618 | /* safe to reuse old SV */ |
1d7c1841 | 1619 | sv_setsv(*itersvp, cur); |
eaa5c2d6 GA |
1620 | } |
1621 | else | |
1622 | #endif | |
1623 | { | |
1624 | /* we need a fresh SV every time so that loop body sees a | |
1625 | * completely new SV for closures/references to work as | |
1626 | * they used to */ | |
1d7c1841 GS |
1627 | SvREFCNT_dec(*itersvp); |
1628 | *itersvp = newSVsv(cur); | |
eaa5c2d6 | 1629 | } |
89ea2908 GA |
1630 | if (strEQ(SvPVX(cur), max)) |
1631 | sv_setiv(cur, 0); /* terminate next time */ | |
1632 | else | |
1633 | sv_inc(cur); | |
1634 | RETPUSHYES; | |
1635 | } | |
1636 | RETPUSHNO; | |
1637 | } | |
1638 | /* integer increment */ | |
1639 | if (cx->blk_loop.iterix > cx->blk_loop.itermax) | |
1640 | RETPUSHNO; | |
7f61b687 | 1641 | |
eaa5c2d6 | 1642 | #ifndef USE_THREADS /* don't risk potential race */ |
1d7c1841 | 1643 | if (SvREFCNT(*itersvp) == 1 && !SvMAGICAL(*itersvp)) { |
eaa5c2d6 | 1644 | /* safe to reuse old SV */ |
1d7c1841 | 1645 | sv_setiv(*itersvp, cx->blk_loop.iterix++); |
eaa5c2d6 GA |
1646 | } |
1647 | else | |
1648 | #endif | |
1649 | { | |
1650 | /* we need a fresh SV every time so that loop body sees a | |
1651 | * completely new SV for closures/references to work as they | |
1652 | * used to */ | |
1d7c1841 GS |
1653 | SvREFCNT_dec(*itersvp); |
1654 | *itersvp = newSViv(cx->blk_loop.iterix++); | |
eaa5c2d6 | 1655 | } |
89ea2908 GA |
1656 | RETPUSHYES; |
1657 | } | |
1658 | ||
1659 | /* iterate array */ | |
3280af22 | 1660 | if (cx->blk_loop.iterix >= (av == PL_curstack ? cx->blk_oldsp : AvFILL(av))) |
4633a7c4 | 1661 | RETPUSHNO; |
a0d0e21e | 1662 | |
1d7c1841 | 1663 | SvREFCNT_dec(*itersvp); |
a0d0e21e | 1664 | |
155aba94 GS |
1665 | if ((sv = SvMAGICAL(av) |
1666 | ? *av_fetch(av, ++cx->blk_loop.iterix, FALSE) | |
1667 | : AvARRAY(av)[++cx->blk_loop.iterix])) | |
a0d0e21e | 1668 | SvTEMP_off(sv); |
a0d0e21e | 1669 | else |
3280af22 NIS |
1670 | sv = &PL_sv_undef; |
1671 | if (av != PL_curstack && SvIMMORTAL(sv)) { | |
5f05dabc | 1672 | SV *lv = cx->blk_loop.iterlval; |
71be2cbc | 1673 | if (lv && SvREFCNT(lv) > 1) { |
1674 | SvREFCNT_dec(lv); | |
1675 | lv = Nullsv; | |
1676 | } | |
5f05dabc | 1677 | if (lv) |
1678 | SvREFCNT_dec(LvTARG(lv)); | |
1679 | else { | |
68dc0745 | 1680 | lv = cx->blk_loop.iterlval = NEWSV(26, 0); |
5f05dabc | 1681 | sv_upgrade(lv, SVt_PVLV); |
5f05dabc | 1682 | LvTYPE(lv) = 'y'; |
68dc0745 | 1683 | sv_magic(lv, Nullsv, 'y', Nullch, 0); |
5f05dabc | 1684 | } |
1685 | LvTARG(lv) = SvREFCNT_inc(av); | |
1686 | LvTARGOFF(lv) = cx->blk_loop.iterix; | |
42718184 | 1687 | LvTARGLEN(lv) = (STRLEN)UV_MAX; |
5f05dabc | 1688 | sv = (SV*)lv; |
1689 | } | |
a0d0e21e | 1690 | |
1d7c1841 | 1691 | *itersvp = SvREFCNT_inc(sv); |
a0d0e21e LW |
1692 | RETPUSHYES; |
1693 | } | |
1694 | ||
1695 | PP(pp_subst) | |
1696 | { | |
4e35701f | 1697 | djSP; dTARG; |
a0d0e21e LW |
1698 | register PMOP *pm = cPMOP; |
1699 | PMOP *rpm = pm; | |
1700 | register SV *dstr; | |
1701 | register char *s; | |
1702 | char *strend; | |
1703 | register char *m; | |
1704 | char *c; | |
1705 | register char *d; | |
1706 | STRLEN clen; | |
1707 | I32 iters = 0; | |
1708 | I32 maxiters; | |
1709 | register I32 i; | |
1710 | bool once; | |
71be2cbc | 1711 | bool rxtainted; |
a0d0e21e | 1712 | char *orig; |
22e551b9 | 1713 | I32 r_flags; |
d9f97599 | 1714 | register REGEXP *rx = pm->op_pmregexp; |
a0d0e21e LW |
1715 | STRLEN len; |
1716 | int force_on_match = 0; | |
3280af22 | 1717 | I32 oldsave = PL_savestack_ix; |
a0d0e21e | 1718 | |
5cd24f17 | 1719 | /* known replacement string? */ |
1720 | dstr = (pm->op_pmflags & PMf_CONST) ? POPs : Nullsv; | |
533c011a | 1721 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e LW |
1722 | TARG = POPs; |
1723 | else { | |
54b9620d | 1724 | TARG = DEFSV; |
a0d0e21e | 1725 | EXTEND(SP,1); |
8ec5e241 | 1726 | } |
68dc0745 | 1727 | if (SvREADONLY(TARG) |
1728 | || (SvTYPE(TARG) > SVt_PVLV | |
1729 | && !(SvTYPE(TARG) == SVt_PVGV && SvFAKE(TARG)))) | |
d470f89e | 1730 | DIE(aTHX_ PL_no_modify); |
8ec5e241 NIS |
1731 | PUTBACK; |
1732 | ||
a0d0e21e | 1733 | s = SvPV(TARG, len); |
68dc0745 | 1734 | if (!SvPOKp(TARG) || SvTYPE(TARG) == SVt_PVGV) |
a0d0e21e | 1735 | force_on_match = 1; |
b3eb6a9b | 1736 | rxtainted = ((pm->op_pmdynflags & PMdf_TAINTED) || |
3280af22 NIS |
1737 | (PL_tainted && (pm->op_pmflags & PMf_RETAINT))); |
1738 | if (PL_tainted) | |
b3eb6a9b | 1739 | rxtainted |= 2; |
9212bbba | 1740 | TAINT_NOT; |
a0d0e21e LW |
1741 | |
1742 | force_it: | |
1743 | if (!pm || !s) | |
cea2e8a9 | 1744 | DIE(aTHX_ "panic: do_subst"); |
a0d0e21e LW |
1745 | |
1746 | strend = s + len; | |
2beec16e IZ |
1747 | maxiters = 2*(strend - s) + 10; /* We can match twice at each |
1748 | position, once with zero-length, | |
1749 | second time with non-zero. */ | |
a0d0e21e | 1750 | |
3280af22 NIS |
1751 | if (!rx->prelen && PL_curpm) { |
1752 | pm = PL_curpm; | |
d9f97599 | 1753 | rx = pm->op_pmregexp; |
a0d0e21e | 1754 | } |
22e551b9 | 1755 | r_flags = (rx->nparens || SvTEMP(TARG) || PL_sawampersand) |
9d080a66 | 1756 | ? REXEC_COPY_STR : 0; |
f722798b | 1757 | if (SvSCREAM(TARG)) |
22e551b9 | 1758 | r_flags |= REXEC_SCREAM; |
a0d0e21e | 1759 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
3280af22 NIS |
1760 | SAVEINT(PL_multiline); |
1761 | PL_multiline = pm->op_pmflags & PMf_MULTILINE; | |
a0d0e21e LW |
1762 | } |
1763 | orig = m = s; | |
f722798b IZ |
1764 | if (rx->reganch & RE_USE_INTUIT) { |
1765 | s = CALLREG_INTUIT_START(aTHX_ rx, TARG, s, strend, r_flags, NULL); | |
1766 | ||
1767 | if (!s) | |
1768 | goto nope; | |
1769 | /* How to do it in subst? */ | |
1770 | /* if ( (rx->reganch & ROPT_CHECK_ALL) | |
1771 | && !PL_sawampersand | |
1772 | && ((rx->reganch & ROPT_NOSCAN) | |
1773 | || !((rx->reganch & RE_INTUIT_TAIL) | |
1774 | && (r_flags & REXEC_SCREAM)))) | |
1775 | goto yup; | |
1776 | */ | |
a0d0e21e | 1777 | } |
71be2cbc | 1778 | |
1779 | /* only replace once? */ | |
a0d0e21e | 1780 | once = !(rpm->op_pmflags & PMf_GLOBAL); |
71be2cbc | 1781 | |
1782 | /* known replacement string? */ | |
5cd24f17 | 1783 | c = dstr ? SvPV(dstr, clen) : Nullch; |
71be2cbc | 1784 | |
1785 | /* can do inplace substitution? */ | |
22e551b9 | 1786 | if (c && clen <= rx->minlen && (once || !(r_flags & REXEC_COPY_STR)) |
d9f97599 | 1787 | && !(rx->reganch & ROPT_LOOKBEHIND_SEEN)) { |
f722798b IZ |
1788 | if (!CALLREGEXEC(aTHX_ rx, s, strend, orig, 0, TARG, NULL, |
1789 | r_flags | REXEC_CHECKED)) | |
1790 | { | |
8ec5e241 | 1791 | SPAGAIN; |
3280af22 | 1792 | PUSHs(&PL_sv_no); |
71be2cbc | 1793 | LEAVE_SCOPE(oldsave); |
1794 | RETURN; | |
1795 | } | |
1796 | if (force_on_match) { | |
1797 | force_on_match = 0; | |
1798 | s = SvPV_force(TARG, len); | |
1799 | goto force_it; | |
1800 | } | |
71be2cbc | 1801 | d = s; |
3280af22 | 1802 | PL_curpm = pm; |
71be2cbc | 1803 | SvSCREAM_off(TARG); /* disable possible screamer */ |
1804 | if (once) { | |
48c036b1 | 1805 | rxtainted |= RX_MATCH_TAINTED(rx); |
cf93c79d IZ |
1806 | m = orig + rx->startp[0]; |
1807 | d = orig + rx->endp[0]; | |
71be2cbc | 1808 | s = orig; |
1809 | if (m - s > strend - d) { /* faster to shorten from end */ | |
1810 | if (clen) { | |
1811 | Copy(c, m, clen, char); | |
1812 | m += clen; | |
a0d0e21e | 1813 | } |
71be2cbc | 1814 | i = strend - d; |
1815 | if (i > 0) { | |
1816 | Move(d, m, i, char); | |
1817 | m += i; | |
a0d0e21e | 1818 | } |
71be2cbc | 1819 | *m = '\0'; |
1820 | SvCUR_set(TARG, m - s); | |
1821 | } | |
1822 | /*SUPPRESS 560*/ | |
155aba94 | 1823 | else if ((i = m - s)) { /* faster from front */ |
71be2cbc | 1824 | d -= clen; |
1825 | m = d; | |
1826 | sv_chop(TARG, d-i); | |
1827 | s += i; | |
1828 | while (i--) | |
1829 | *--d = *--s; | |
1830 | if (clen) | |
1831 | Copy(c, m, clen, char); | |
1832 | } | |
1833 | else if (clen) { | |
1834 | d -= clen; | |
1835 | sv_chop(TARG, d); | |
1836 | Copy(c, d, clen, char); | |
1837 | } | |
1838 | else { | |
1839 | sv_chop(TARG, d); | |
1840 | } | |
48c036b1 | 1841 | TAINT_IF(rxtainted & 1); |
8ec5e241 | 1842 | SPAGAIN; |
3280af22 | 1843 | PUSHs(&PL_sv_yes); |
71be2cbc | 1844 | } |
1845 | else { | |
71be2cbc | 1846 | do { |
1847 | if (iters++ > maxiters) | |
cea2e8a9 | 1848 | DIE(aTHX_ "Substitution loop"); |
d9f97599 | 1849 | rxtainted |= RX_MATCH_TAINTED(rx); |
cf93c79d | 1850 | m = rx->startp[0] + orig; |
71be2cbc | 1851 | /*SUPPRESS 560*/ |
155aba94 | 1852 | if ((i = m - s)) { |
71be2cbc | 1853 | if (s != d) |
1854 | Move(s, d, i, char); | |
1855 | d += i; | |
a0d0e21e | 1856 | } |
71be2cbc | 1857 | if (clen) { |
1858 | Copy(c, d, clen, char); | |
1859 | d += clen; | |
1860 | } | |
cf93c79d | 1861 | s = rx->endp[0] + orig; |
cea2e8a9 | 1862 | } while (CALLREGEXEC(aTHX_ rx, s, strend, orig, s == m, |
f722798b IZ |
1863 | TARG, NULL, |
1864 | /* don't match same null twice */ | |
1865 | REXEC_NOT_FIRST|REXEC_IGNOREPOS)); | |
71be2cbc | 1866 | if (s != d) { |
1867 | i = strend - s; | |
1868 | SvCUR_set(TARG, d - SvPVX(TARG) + i); | |
1869 | Move(s, d, i+1, char); /* include the NUL */ | |
a0d0e21e | 1870 | } |
48c036b1 | 1871 | TAINT_IF(rxtainted & 1); |
8ec5e241 | 1872 | SPAGAIN; |
71be2cbc | 1873 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
a0d0e21e | 1874 | } |
71be2cbc | 1875 | (void)SvPOK_only(TARG); |
48c036b1 | 1876 | TAINT_IF(rxtainted); |
8ec5e241 NIS |
1877 | if (SvSMAGICAL(TARG)) { |
1878 | PUTBACK; | |
1879 | mg_set(TARG); | |
1880 | SPAGAIN; | |
1881 | } | |
9212bbba | 1882 | SvTAINT(TARG); |
71be2cbc | 1883 | LEAVE_SCOPE(oldsave); |
1884 | RETURN; | |
a0d0e21e | 1885 | } |
71be2cbc | 1886 | |
f722798b IZ |
1887 | if (CALLREGEXEC(aTHX_ rx, s, strend, orig, 0, TARG, NULL, |
1888 | r_flags | REXEC_CHECKED)) | |
1889 | { | |
a0d0e21e LW |
1890 | if (force_on_match) { |
1891 | force_on_match = 0; | |
1892 | s = SvPV_force(TARG, len); | |
1893 | goto force_it; | |
1894 | } | |
48c036b1 | 1895 | rxtainted |= RX_MATCH_TAINTED(rx); |
8ec5e241 | 1896 | dstr = NEWSV(25, len); |
a0d0e21e | 1897 | sv_setpvn(dstr, m, s-m); |
3280af22 | 1898 | PL_curpm = pm; |
a0d0e21e | 1899 | if (!c) { |
c09156bb | 1900 | register PERL_CONTEXT *cx; |
8ec5e241 | 1901 | SPAGAIN; |
a0d0e21e LW |
1902 | PUSHSUBST(cx); |
1903 | RETURNOP(cPMOP->op_pmreplroot); | |
1904 | } | |
cf93c79d | 1905 | r_flags |= REXEC_IGNOREPOS | REXEC_NOT_FIRST; |
a0d0e21e LW |
1906 | do { |
1907 | if (iters++ > maxiters) | |
cea2e8a9 | 1908 | DIE(aTHX_ "Substitution loop"); |
d9f97599 | 1909 | rxtainted |= RX_MATCH_TAINTED(rx); |
cf93c79d | 1910 | if (RX_MATCH_COPIED(rx) && rx->subbeg != orig) { |
a0d0e21e LW |
1911 | m = s; |
1912 | s = orig; | |
cf93c79d | 1913 | orig = rx->subbeg; |
a0d0e21e LW |
1914 | s = orig + (m - s); |
1915 | strend = s + (strend - m); | |
1916 | } | |
cf93c79d | 1917 | m = rx->startp[0] + orig; |
a0d0e21e | 1918 | sv_catpvn(dstr, s, m-s); |
cf93c79d | 1919 | s = rx->endp[0] + orig; |
a0d0e21e LW |
1920 | if (clen) |
1921 | sv_catpvn(dstr, c, clen); | |
1922 | if (once) | |
1923 | break; | |
cea2e8a9 | 1924 | } while (CALLREGEXEC(aTHX_ rx, s, strend, orig, s == m, TARG, NULL, r_flags)); |
a0d0e21e | 1925 | sv_catpvn(dstr, s, strend - s); |
748a9306 | 1926 | |
4633a7c4 | 1927 | (void)SvOOK_off(TARG); |
cb0b1708 | 1928 | Safefree(SvPVX(TARG)); |
748a9306 LW |
1929 | SvPVX(TARG) = SvPVX(dstr); |
1930 | SvCUR_set(TARG, SvCUR(dstr)); | |
1931 | SvLEN_set(TARG, SvLEN(dstr)); | |
1932 | SvPVX(dstr) = 0; | |
1933 | sv_free(dstr); | |
1934 | ||
48c036b1 | 1935 | TAINT_IF(rxtainted & 1); |
f878fbec | 1936 | SPAGAIN; |
48c036b1 GS |
1937 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
1938 | ||
a0d0e21e | 1939 | (void)SvPOK_only(TARG); |
48c036b1 | 1940 | TAINT_IF(rxtainted); |
a0d0e21e | 1941 | SvSETMAGIC(TARG); |
9212bbba | 1942 | SvTAINT(TARG); |
4633a7c4 | 1943 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1944 | RETURN; |
1945 | } | |
5cd24f17 | 1946 | goto ret_no; |
a0d0e21e LW |
1947 | |
1948 | nope: | |
8ec5e241 NIS |
1949 | ret_no: |
1950 | SPAGAIN; | |
3280af22 | 1951 | PUSHs(&PL_sv_no); |
4633a7c4 | 1952 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1953 | RETURN; |
1954 | } | |
1955 | ||
1956 | PP(pp_grepwhile) | |
1957 | { | |
4e35701f | 1958 | djSP; |
a0d0e21e LW |
1959 | |
1960 | if (SvTRUEx(POPs)) | |
3280af22 NIS |
1961 | PL_stack_base[PL_markstack_ptr[-1]++] = PL_stack_base[*PL_markstack_ptr]; |
1962 | ++*PL_markstack_ptr; | |
a0d0e21e LW |
1963 | LEAVE; /* exit inner scope */ |
1964 | ||
1965 | /* All done yet? */ | |
3280af22 | 1966 | if (PL_stack_base + *PL_markstack_ptr > SP) { |
a0d0e21e | 1967 | I32 items; |
54310121 | 1968 | I32 gimme = GIMME_V; |
a0d0e21e LW |
1969 | |
1970 | LEAVE; /* exit outer scope */ | |
1971 | (void)POPMARK; /* pop src */ | |
3280af22 | 1972 | items = --*PL_markstack_ptr - PL_markstack_ptr[-1]; |
a0d0e21e | 1973 | (void)POPMARK; /* pop dst */ |
3280af22 | 1974 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
54310121 | 1975 | if (gimme == G_SCALAR) { |
a0d0e21e LW |
1976 | dTARGET; |
1977 | XPUSHi(items); | |
a0d0e21e | 1978 | } |
54310121 | 1979 | else if (gimme == G_ARRAY) |
1980 | SP += items; | |
a0d0e21e LW |
1981 | RETURN; |
1982 | } | |
1983 | else { | |
1984 | SV *src; | |
1985 | ||
1986 | ENTER; /* enter inner scope */ | |
1d7c1841 | 1987 | SAVEVPTR(PL_curpm); |
a0d0e21e | 1988 | |
3280af22 | 1989 | src = PL_stack_base[*PL_markstack_ptr]; |
a0d0e21e | 1990 | SvTEMP_off(src); |
54b9620d | 1991 | DEFSV = src; |
a0d0e21e LW |
1992 | |
1993 | RETURNOP(cLOGOP->op_other); | |
1994 | } | |
1995 | } | |
1996 | ||
1997 | PP(pp_leavesub) | |
1998 | { | |
4e35701f | 1999 | djSP; |
a0d0e21e LW |
2000 | SV **mark; |
2001 | SV **newsp; | |
2002 | PMOP *newpm; | |
2003 | I32 gimme; | |
c09156bb | 2004 | register PERL_CONTEXT *cx; |
b0d9ce38 | 2005 | SV *sv; |
a0d0e21e LW |
2006 | |
2007 | POPBLOCK(cx,newpm); | |
f86702cc | 2008 | |
a1f49e72 | 2009 | TAINT_NOT; |
a0d0e21e LW |
2010 | if (gimme == G_SCALAR) { |
2011 | MARK = newsp + 1; | |
a29cdaf0 | 2012 | if (MARK <= SP) { |
a8bba7fa | 2013 | if (cx->blk_sub.cv && CvDEPTH(cx->blk_sub.cv) > 1) { |
a29cdaf0 IZ |
2014 | if (SvTEMP(TOPs)) { |
2015 | *MARK = SvREFCNT_inc(TOPs); | |
2016 | FREETMPS; | |
2017 | sv_2mortal(*MARK); | |
cd06dffe GS |
2018 | } |
2019 | else { | |
959e3673 | 2020 | sv = SvREFCNT_inc(TOPs); /* FREETMPS could clobber it */ |
a29cdaf0 | 2021 | FREETMPS; |
959e3673 GS |
2022 | *MARK = sv_mortalcopy(sv); |
2023 | SvREFCNT_dec(sv); | |
a29cdaf0 | 2024 | } |
cd06dffe GS |
2025 | } |
2026 | else | |
a29cdaf0 | 2027 | *MARK = SvTEMP(TOPs) ? TOPs : sv_mortalcopy(TOPs); |
cd06dffe GS |
2028 | } |
2029 | else { | |
f86702cc | 2030 | MEXTEND(MARK, 0); |
3280af22 | 2031 | *MARK = &PL_sv_undef; |
a0d0e21e LW |
2032 | } |
2033 | SP = MARK; | |
2034 | } | |
54310121 | 2035 | else if (gimme == G_ARRAY) { |
f86702cc | 2036 | for (MARK = newsp + 1; MARK <= SP; MARK++) { |
a1f49e72 | 2037 | if (!SvTEMP(*MARK)) { |
f86702cc | 2038 | *MARK = sv_mortalcopy(*MARK); |
a1f49e72 CS |
2039 | TAINT_NOT; /* Each item is independent */ |
2040 | } | |
f86702cc | 2041 | } |
a0d0e21e | 2042 | } |
f86702cc | 2043 | PUTBACK; |
2044 | ||
b0d9ce38 | 2045 | POPSUB(cx,sv); /* Stack values are safe: release CV and @_ ... */ |
3280af22 | 2046 | PL_curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e LW |
2047 | |
2048 | LEAVE; | |
b0d9ce38 | 2049 | LEAVESUB(sv); |
a0d0e21e LW |
2050 | return pop_return(); |
2051 | } | |
2052 | ||
cd06dffe GS |
2053 | /* This duplicates the above code because the above code must not |
2054 | * get any slower by more conditions */ | |
2055 | PP(pp_leavesublv) | |
2056 | { | |
2057 | djSP; | |
2058 | SV **mark; | |
2059 | SV **newsp; | |
2060 | PMOP *newpm; | |
2061 | I32 gimme; | |
2062 | register PERL_CONTEXT *cx; | |
b0d9ce38 | 2063 | SV *sv; |
cd06dffe GS |
2064 | |
2065 | POPBLOCK(cx,newpm); | |
cd06dffe GS |
2066 | |
2067 | TAINT_NOT; | |
2068 | ||
2069 | if (cx->blk_sub.lval & OPpENTERSUB_INARGS) { | |
2070 | /* We are an argument to a function or grep(). | |
2071 | * This kind of lvalueness was legal before lvalue | |
2072 | * subroutines too, so be backward compatible: | |
2073 | * cannot report errors. */ | |
2074 | ||
2075 | /* Scalar context *is* possible, on the LHS of -> only, | |
2076 | * as in f()->meth(). But this is not an lvalue. */ | |
2077 | if (gimme == G_SCALAR) | |
2078 | goto temporise; | |
2079 | if (gimme == G_ARRAY) { | |
a8bba7fa | 2080 | if (!CvLVALUE(cx->blk_sub.cv)) |
cd06dffe GS |
2081 | goto temporise_array; |
2082 | EXTEND_MORTAL(SP - newsp); | |
2083 | for (mark = newsp + 1; mark <= SP; mark++) { | |
2084 | if (SvTEMP(*mark)) | |
2085 | /* empty */ ; | |
2086 | else if (SvFLAGS(*mark) & (SVs_PADTMP | SVf_READONLY)) | |
2087 | *mark = sv_mortalcopy(*mark); | |
2088 | else { | |
2089 | /* Can be a localized value subject to deletion. */ | |
2090 | PL_tmps_stack[++PL_tmps_ix] = *mark; | |
e1f15930 | 2091 | (void)SvREFCNT_inc(*mark); |
cd06dffe GS |
2092 | } |
2093 | } | |
2094 | } | |
2095 | } | |
2096 | else if (cx->blk_sub.lval) { /* Leave it as it is if we can. */ | |
2097 | /* Here we go for robustness, not for speed, so we change all | |
2098 | * the refcounts so the caller gets a live guy. Cannot set | |
2099 | * TEMP, so sv_2mortal is out of question. */ | |
a8bba7fa | 2100 | if (!CvLVALUE(cx->blk_sub.cv)) { |
b0d9ce38 | 2101 | POPSUB(cx,sv); |
d470f89e | 2102 | PL_curpm = newpm; |
b0d9ce38 GS |
2103 | LEAVE; |
2104 | LEAVESUB(sv); | |
d470f89e GS |
2105 | DIE(aTHX_ "Can't modify non-lvalue subroutine call"); |
2106 | } | |
cd06dffe GS |
2107 | if (gimme == G_SCALAR) { |
2108 | MARK = newsp + 1; | |
2109 | EXTEND_MORTAL(1); | |
2110 | if (MARK == SP) { | |
d470f89e | 2111 | if (SvFLAGS(TOPs) & (SVs_TEMP | SVs_PADTMP | SVf_READONLY)) { |
b0d9ce38 | 2112 | POPSUB(cx,sv); |
d470f89e | 2113 | PL_curpm = newpm; |
b0d9ce38 GS |
2114 | LEAVE; |
2115 | LEAVESUB(sv); | |
d470f89e | 2116 | DIE(aTHX_ "Can't return a %s from lvalue subroutine", |
cd06dffe | 2117 | SvREADONLY(TOPs) ? "readonly value" : "temporary"); |
d470f89e | 2118 | } |
cd06dffe GS |
2119 | else { /* Can be a localized value |
2120 | * subject to deletion. */ | |
2121 | PL_tmps_stack[++PL_tmps_ix] = *mark; | |
e1f15930 | 2122 | (void)SvREFCNT_inc(*mark); |
cd06dffe GS |
2123 | } |
2124 | } | |
d470f89e | 2125 | else { /* Should not happen? */ |
b0d9ce38 | 2126 | POPSUB(cx,sv); |
d470f89e | 2127 | PL_curpm = newpm; |
b0d9ce38 GS |
2128 | LEAVE; |
2129 | LEAVESUB(sv); | |
d470f89e | 2130 | DIE(aTHX_ "%s returned from lvalue subroutine in scalar context", |
cd06dffe | 2131 | (MARK > SP ? "Empty array" : "Array")); |
d470f89e | 2132 | } |
cd06dffe GS |
2133 | SP = MARK; |
2134 | } | |
2135 | else if (gimme == G_ARRAY) { | |
2136 | EXTEND_MORTAL(SP - newsp); | |
2137 | for (mark = newsp + 1; mark <= SP; mark++) { | |
d470f89e GS |
2138 | if (SvFLAGS(*mark) & (SVs_TEMP | SVs_PADTMP | SVf_READONLY)) { |
2139 | /* Might be flattened array after $#array = */ | |
2140 | PUTBACK; | |
b0d9ce38 | 2141 | POPSUB(cx,sv); |
d470f89e | 2142 | PL_curpm = newpm; |
b0d9ce38 GS |
2143 | LEAVE; |
2144 | LEAVESUB(sv); | |
d470f89e | 2145 | DIE(aTHX_ "Can't return %s from lvalue subroutine", |
cd06dffe GS |
2146 | (*mark != &PL_sv_undef) |
2147 | ? (SvREADONLY(TOPs) | |
2148 | ? "a readonly value" : "a temporary") | |
2149 | : "an uninitialized value"); | |
d470f89e | 2150 | } |
cd06dffe | 2151 | else { |
cd06dffe GS |
2152 | /* Can be a localized value subject to deletion. */ |
2153 | PL_tmps_stack[++PL_tmps_ix] = *mark; | |
e1f15930 | 2154 | (void)SvREFCNT_inc(*mark); |
cd06dffe GS |
2155 | } |
2156 | } | |
2157 | } | |
2158 | } | |
2159 | else { | |
2160 | if (gimme == G_SCALAR) { | |
2161 | temporise: | |
2162 | MARK = newsp + 1; | |
2163 | if (MARK <= SP) { | |
a8bba7fa | 2164 | if (cx->blk_sub.cv && CvDEPTH(cx->blk_sub.cv) > 1) { |
cd06dffe GS |
2165 | if (SvTEMP(TOPs)) { |
2166 | *MARK = SvREFCNT_inc(TOPs); | |
2167 | FREETMPS; | |
2168 | sv_2mortal(*MARK); | |
2169 | } | |
2170 | else { | |
959e3673 | 2171 | sv = SvREFCNT_inc(TOPs); /* FREETMPS could clobber it */ |
cd06dffe | 2172 | FREETMPS; |
959e3673 GS |
2173 | *MARK = sv_mortalcopy(sv); |
2174 | SvREFCNT_dec(sv); | |
cd06dffe GS |
2175 | } |
2176 | } | |
2177 | else | |
2178 | *MARK = SvTEMP(TOPs) ? TOPs : sv_mortalcopy(TOPs); | |
2179 | } | |
2180 | else { | |
2181 | MEXTEND(MARK, 0); | |
2182 | *MARK = &PL_sv_undef; | |
2183 | } | |
2184 | SP = MARK; | |
2185 | } | |
2186 | else if (gimme == G_ARRAY) { | |
2187 | temporise_array: | |
2188 | for (MARK = newsp + 1; MARK <= SP; MARK++) { | |
2189 | if (!SvTEMP(*MARK)) { | |
2190 | *MARK = sv_mortalcopy(*MARK); | |
2191 | TAINT_NOT; /* Each item is independent */ | |
2192 | } | |
2193 | } | |
2194 | } | |
2195 | } | |
2196 | PUTBACK; | |
2197 | ||
b0d9ce38 | 2198 | POPSUB(cx,sv); /* Stack values are safe: release CV and @_ ... */ |
cd06dffe GS |
2199 | PL_curpm = newpm; /* ... and pop $1 et al */ |
2200 | ||
2201 | LEAVE; | |
b0d9ce38 | 2202 | LEAVESUB(sv); |
cd06dffe GS |
2203 | return pop_return(); |
2204 | } | |
2205 | ||
2206 | ||
76e3520e | 2207 | STATIC CV * |
cea2e8a9 | 2208 | S_get_db_sub(pTHX_ SV **svp, CV *cv) |
3de9ffa1 MB |
2209 | { |
2210 | dTHR; | |
3280af22 | 2211 | SV *dbsv = GvSV(PL_DBsub); |
491527d0 GS |
2212 | |
2213 | if (!PERLDB_SUB_NN) { | |
2214 | GV *gv = CvGV(cv); | |
2215 | ||
2216 | save_item(dbsv); | |
2217 | if ( (CvFLAGS(cv) & (CVf_ANON | CVf_CLONED)) | |
2218 | || strEQ(GvNAME(gv), "END") | |
2219 | || ((GvCV(gv) != cv) && /* Could be imported, and old sub redefined. */ | |
2220 | !( (SvTYPE(*svp) == SVt_PVGV) && (GvCV((GV*)*svp) == cv) | |
2221 | && (gv = (GV*)*svp) ))) { | |
2222 | /* Use GV from the stack as a fallback. */ | |
2223 | /* GV is potentially non-unique, or contain different CV. */ | |
2224 | sv_setsv(dbsv, newRV((SV*)cv)); | |
2225 | } | |
2226 | else { | |
2227 | gv_efullname3(dbsv, gv, Nullch); | |
2228 | } | |
3de9ffa1 MB |
2229 | } |
2230 | else { | |
155aba94 GS |
2231 | (void)SvUPGRADE(dbsv, SVt_PVIV); |
2232 | (void)SvIOK_on(dbsv); | |
491527d0 | 2233 | SAVEIV(SvIVX(dbsv)); |
5bc28da9 | 2234 | SvIVX(dbsv) = PTR2IV(cv); /* Do it the quickest way */ |
3de9ffa1 | 2235 | } |
491527d0 | 2236 | |
3de9ffa1 | 2237 | if (CvXSUB(cv)) |
3280af22 NIS |
2238 | PL_curcopdb = PL_curcop; |
2239 | cv = GvCV(PL_DBsub); | |
3de9ffa1 MB |
2240 | return cv; |
2241 | } | |
2242 | ||
a0d0e21e LW |
2243 | PP(pp_entersub) |
2244 | { | |
4e35701f | 2245 | djSP; dPOPss; |
a0d0e21e LW |
2246 | GV *gv; |
2247 | HV *stash; | |
2248 | register CV *cv; | |
c09156bb | 2249 | register PERL_CONTEXT *cx; |
5d94fbed | 2250 | I32 gimme; |
533c011a | 2251 | bool hasargs = (PL_op->op_flags & OPf_STACKED) != 0; |
a0d0e21e LW |
2252 | |
2253 | if (!sv) | |
cea2e8a9 | 2254 | DIE(aTHX_ "Not a CODE reference"); |
a0d0e21e LW |
2255 | switch (SvTYPE(sv)) { |
2256 | default: | |
2257 | if (!SvROK(sv)) { | |
748a9306 | 2258 | char *sym; |
2d8e6c8d | 2259 | STRLEN n_a; |
748a9306 | 2260 | |
3280af22 | 2261 | if (sv == &PL_sv_yes) { /* unfound import, ignore */ |
fb73857a | 2262 | if (hasargs) |
3280af22 | 2263 | SP = PL_stack_base + POPMARK; |
a0d0e21e | 2264 | RETURN; |
fb73857a | 2265 | } |
15ff848f CS |
2266 | if (SvGMAGICAL(sv)) { |
2267 | mg_get(sv); | |
2268 | sym = SvPOKp(sv) ? SvPVX(sv) : Nullch; | |
2269 | } | |
2270 | else | |
2d8e6c8d | 2271 | sym = SvPV(sv, n_a); |
15ff848f | 2272 | if (!sym) |
cea2e8a9 | 2273 | DIE(aTHX_ PL_no_usym, "a subroutine"); |
533c011a | 2274 | if (PL_op->op_private & HINT_STRICT_REFS) |
cea2e8a9 | 2275 | DIE(aTHX_ PL_no_symref, sym, "a subroutine"); |
864dbfa3 | 2276 | cv = get_cv(sym, TRUE); |
a0d0e21e LW |
2277 | break; |
2278 | } | |
f5284f61 IZ |
2279 | { |
2280 | SV **sp = &sv; /* Used in tryAMAGICunDEREF macro. */ | |
2281 | tryAMAGICunDEREF(to_cv); | |
2282 | } | |
a0d0e21e LW |
2283 | cv = (CV*)SvRV(sv); |
2284 | if (SvTYPE(cv) == SVt_PVCV) | |
2285 | break; | |
2286 | /* FALL THROUGH */ | |
2287 | case SVt_PVHV: | |
2288 | case SVt_PVAV: | |
cea2e8a9 | 2289 | DIE(aTHX_ "Not a CODE reference"); |
a0d0e21e LW |
2290 | case SVt_PVCV: |
2291 | cv = (CV*)sv; | |
2292 | break; | |
2293 | case SVt_PVGV: | |
8ebc5c01 | 2294 | if (!(cv = GvCVu((GV*)sv))) |
f6ec51f7 GS |
2295 | cv = sv_2cv(sv, &stash, &gv, FALSE); |
2296 | if (!cv) { | |
2297 | ENTER; | |
2298 | SAVETMPS; | |
2299 | goto try_autoload; | |
2300 | } | |
2301 | break; | |
a0d0e21e LW |
2302 | } |
2303 | ||
2304 | ENTER; | |
2305 | SAVETMPS; | |
2306 | ||
2307 | retry: | |
a0d0e21e | 2308 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
44a8e56a | 2309 | GV* autogv; |
22239a37 | 2310 | SV* sub_name; |
44a8e56a | 2311 | |
2312 | /* anonymous or undef'd function leaves us no recourse */ | |
2313 | if (CvANON(cv) || !(gv = CvGV(cv))) | |
cea2e8a9 | 2314 | DIE(aTHX_ "Undefined subroutine called"); |
67caa1fe | 2315 | |
44a8e56a | 2316 | /* autoloaded stub? */ |
2317 | if (cv != GvCV(gv)) { | |
2318 | cv = GvCV(gv); | |
a0d0e21e | 2319 | } |
44a8e56a | 2320 | /* should call AUTOLOAD now? */ |
67caa1fe | 2321 | else { |
f6ec51f7 GS |
2322 | try_autoload: |
2323 | if ((autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), | |
2324 | FALSE))) | |
2325 | { | |
2326 | cv = GvCV(autogv); | |
2327 | } | |
2328 | /* sorry */ | |
2329 | else { | |
2330 | sub_name = sv_newmortal(); | |
2331 | gv_efullname3(sub_name, gv, Nullch); | |
cea2e8a9 | 2332 | DIE(aTHX_ "Undefined subroutine &%s called", SvPVX(sub_name)); |
f6ec51f7 | 2333 | } |
67caa1fe GS |
2334 | } |
2335 | if (!cv) | |
cea2e8a9 | 2336 | DIE(aTHX_ "Not a CODE reference"); |
67caa1fe | 2337 | goto retry; |
a0d0e21e LW |
2338 | } |
2339 | ||
54310121 | 2340 | gimme = GIMME_V; |
67caa1fe | 2341 | if ((PL_op->op_private & OPpENTERSUB_DB) && GvCV(PL_DBsub) && !CvNODEBUG(cv)) { |
4f01c5a5 | 2342 | cv = get_db_sub(&sv, cv); |
67caa1fe | 2343 | if (!cv) |
cea2e8a9 | 2344 | DIE(aTHX_ "No DBsub routine"); |
67caa1fe | 2345 | } |
a0d0e21e | 2346 | |
11343788 | 2347 | #ifdef USE_THREADS |
3de9ffa1 MB |
2348 | /* |
2349 | * First we need to check if the sub or method requires locking. | |
458fb581 MB |
2350 | * If so, we gain a lock on the CV, the first argument or the |
2351 | * stash (for static methods), as appropriate. This has to be | |
2352 | * inline because for FAKE_THREADS, COND_WAIT inlines code to | |
2353 | * reschedule by returning a new op. | |
3de9ffa1 | 2354 | */ |
11343788 | 2355 | MUTEX_LOCK(CvMUTEXP(cv)); |
77a005ab MB |
2356 | if (CvFLAGS(cv) & CVf_LOCKED) { |
2357 | MAGIC *mg; | |
2358 | if (CvFLAGS(cv) & CVf_METHOD) { | |
533c011a NIS |
2359 | if (SP > PL_stack_base + TOPMARK) |
2360 | sv = *(PL_stack_base + TOPMARK + 1); | |
77a005ab | 2361 | else { |
13e08037 GS |
2362 | AV *av = (AV*)PL_curpad[0]; |
2363 | if (hasargs || !av || AvFILLp(av) < 0 | |
2364 | || !(sv = AvARRAY(av)[0])) | |
2365 | { | |
2366 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
d470f89e | 2367 | DIE(aTHX_ "no argument for locked method call"); |
13e08037 | 2368 | } |
77a005ab MB |
2369 | } |
2370 | if (SvROK(sv)) | |
2371 | sv = SvRV(sv); | |
458fb581 MB |
2372 | else { |
2373 | STRLEN len; | |
2374 | char *stashname = SvPV(sv, len); | |
2375 | sv = (SV*)gv_stashpvn(stashname, len, TRUE); | |
2376 | } | |
77a005ab MB |
2377 | } |
2378 | else { | |
2379 | sv = (SV*)cv; | |
2380 | } | |
2381 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
2382 | mg = condpair_magic(sv); | |
2383 | MUTEX_LOCK(MgMUTEXP(mg)); | |
2384 | if (MgOWNER(mg) == thr) | |
2385 | MUTEX_UNLOCK(MgMUTEXP(mg)); | |
2386 | else { | |
2387 | while (MgOWNER(mg)) | |
2388 | COND_WAIT(MgOWNERCONDP(mg), MgMUTEXP(mg)); | |
2389 | MgOWNER(mg) = thr; | |
bf49b057 | 2390 | DEBUG_S(PerlIO_printf(Perl_debug_log, "%p: pp_entersub lock %p\n", |
1fd28e87 | 2391 | thr, sv);) |
77a005ab | 2392 | MUTEX_UNLOCK(MgMUTEXP(mg)); |
c76ac1ee | 2393 | SAVEDESTRUCTOR_X(Perl_unlock_condpair, sv); |
11343788 | 2394 | } |
77a005ab | 2395 | MUTEX_LOCK(CvMUTEXP(cv)); |
11343788 | 2396 | } |
3de9ffa1 MB |
2397 | /* |
2398 | * Now we have permission to enter the sub, we must distinguish | |
2399 | * four cases. (0) It's an XSUB (in which case we don't care | |
2400 | * about ownership); (1) it's ours already (and we're recursing); | |
2401 | * (2) it's free (but we may already be using a cached clone); | |
2402 | * (3) another thread owns it. Case (1) is easy: we just use it. | |
2403 | * Case (2) means we look for a clone--if we have one, use it | |
2404 | * otherwise grab ownership of cv. Case (3) means we look for a | |
2405 | * clone (for non-XSUBs) and have to create one if we don't | |
2406 | * already have one. | |
2407 | * Why look for a clone in case (2) when we could just grab | |
2408 | * ownership of cv straight away? Well, we could be recursing, | |
2409 | * i.e. we originally tried to enter cv while another thread | |
2410 | * owned it (hence we used a clone) but it has been freed up | |
2411 | * and we're now recursing into it. It may or may not be "better" | |
2412 | * to use the clone but at least CvDEPTH can be trusted. | |
2413 | */ | |
2414 | if (CvOWNER(cv) == thr || CvXSUB(cv)) | |
2415 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
11343788 | 2416 | else { |
3de9ffa1 MB |
2417 | /* Case (2) or (3) */ |
2418 | SV **svp; | |
2419 | ||
11343788 | 2420 | /* |
3de9ffa1 MB |
2421 | * XXX Might it be better to release CvMUTEXP(cv) while we |
2422 | * do the hv_fetch? We might find someone has pinched it | |
2423 | * when we look again, in which case we would be in case | |
2424 | * (3) instead of (2) so we'd have to clone. Would the fact | |
2425 | * that we released the mutex more quickly make up for this? | |
2426 | */ | |
b099ddc0 | 2427 | if ((svp = hv_fetch(thr->cvcache, (char *)cv, sizeof(cv), FALSE))) |
6ee623d5 | 2428 | { |
3de9ffa1 | 2429 | /* We already have a clone to use */ |
11343788 | 2430 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
3de9ffa1 | 2431 | cv = *(CV**)svp; |
bf49b057 | 2432 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
1fd28e87 MB |
2433 | "entersub: %p already has clone %p:%s\n", |
2434 | thr, cv, SvPEEK((SV*)cv))); | |
3de9ffa1 MB |
2435 | CvOWNER(cv) = thr; |
2436 | SvREFCNT_inc(cv); | |
2437 | if (CvDEPTH(cv) == 0) | |
c76ac1ee | 2438 | SAVEDESTRUCTOR_X(unset_cvowner, (void*) cv); |
3de9ffa1 | 2439 | } |
11343788 | 2440 | else { |
3de9ffa1 MB |
2441 | /* (2) => grab ownership of cv. (3) => make clone */ |
2442 | if (!CvOWNER(cv)) { | |
2443 | CvOWNER(cv) = thr; | |
2444 | SvREFCNT_inc(cv); | |
11343788 | 2445 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
bf49b057 | 2446 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
1fd28e87 MB |
2447 | "entersub: %p grabbing %p:%s in stash %s\n", |
2448 | thr, cv, SvPEEK((SV*)cv), CvSTASH(cv) ? | |
3de9ffa1 | 2449 | HvNAME(CvSTASH(cv)) : "(none)")); |
cd06dffe GS |
2450 | } |
2451 | else { | |
3de9ffa1 MB |
2452 | /* Make a new clone. */ |
2453 | CV *clonecv; | |
2454 | SvREFCNT_inc(cv); /* don't let it vanish from under us */ | |
2455 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
bf49b057 | 2456 | DEBUG_S((PerlIO_printf(Perl_debug_log, |
1fd28e87 MB |
2457 | "entersub: %p cloning %p:%s\n", |
2458 | thr, cv, SvPEEK((SV*)cv)))); | |
3de9ffa1 MB |
2459 | /* |
2460 | * We're creating a new clone so there's no race | |
2461 | * between the original MUTEX_UNLOCK and the | |
2462 | * SvREFCNT_inc since no one will be trying to undef | |
2463 | * it out from underneath us. At least, I don't think | |
2464 | * there's a race... | |
2465 | */ | |
2466 | clonecv = cv_clone(cv); | |
2467 | SvREFCNT_dec(cv); /* finished with this */ | |
199100c8 | 2468 | hv_store(thr->cvcache, (char*)cv, sizeof(cv), (SV*)clonecv,0); |
3de9ffa1 MB |
2469 | CvOWNER(clonecv) = thr; |
2470 | cv = clonecv; | |
11343788 | 2471 | SvREFCNT_inc(cv); |
11343788 | 2472 | } |
8b73bbec | 2473 | DEBUG_S(if (CvDEPTH(cv) != 0) |
bf49b057 | 2474 | PerlIO_printf(Perl_debug_log, "depth %ld != 0\n", |
3de9ffa1 | 2475 | CvDEPTH(cv));); |
c76ac1ee | 2476 | SAVEDESTRUCTOR_X(unset_cvowner, (void*) cv); |
11343788 | 2477 | } |
3de9ffa1 | 2478 | } |
11343788 MB |
2479 | #endif /* USE_THREADS */ |
2480 | ||
a0d0e21e | 2481 | if (CvXSUB(cv)) { |
67caa1fe | 2482 | #ifdef PERL_XSUB_OLDSTYLE |
a0d0e21e | 2483 | if (CvOLDSTYLE(cv)) { |
20ce7b12 | 2484 | I32 (*fp3)(int,int,int); |
a0d0e21e LW |
2485 | dMARK; |
2486 | register I32 items = SP - MARK; | |
67955e0c | 2487 | /* We dont worry to copy from @_. */ |
924508f0 GS |
2488 | while (SP > mark) { |
2489 | SP[1] = SP[0]; | |
2490 | SP--; | |
a0d0e21e | 2491 | } |
3280af22 | 2492 | PL_stack_sp = mark + 1; |
1d7c1841 | 2493 | fp3 = (I32(*)(int,int,int))CvXSUB(cv); |
ecfc5424 | 2494 | items = (*fp3)(CvXSUBANY(cv).any_i32, |
3280af22 | 2495 | MARK - PL_stack_base + 1, |
ecfc5424 | 2496 | items); |
3280af22 | 2497 | PL_stack_sp = PL_stack_base + items; |
a0d0e21e | 2498 | } |
67caa1fe GS |
2499 | else |
2500 | #endif /* PERL_XSUB_OLDSTYLE */ | |
2501 | { | |
748a9306 LW |
2502 | I32 markix = TOPMARK; |
2503 | ||
a0d0e21e | 2504 | PUTBACK; |
67955e0c | 2505 | |
2506 | if (!hasargs) { | |
2507 | /* Need to copy @_ to stack. Alternative may be to | |
2508 | * switch stack to @_, and copy return values | |
2509 | * back. This would allow popping @_ in XSUB, e.g.. XXXX */ | |
6d4ff0d2 MB |
2510 | AV* av; |
2511 | I32 items; | |
2512 | #ifdef USE_THREADS | |
533c011a | 2513 | av = (AV*)PL_curpad[0]; |
6d4ff0d2 | 2514 | #else |
3280af22 | 2515 | av = GvAV(PL_defgv); |
6d4ff0d2 | 2516 | #endif /* USE_THREADS */ |
93965878 | 2517 | items = AvFILLp(av) + 1; /* @_ is not tieable */ |
67955e0c | 2518 | |
2519 | if (items) { | |
2520 | /* Mark is at the end of the stack. */ | |
924508f0 GS |
2521 | EXTEND(SP, items); |
2522 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
2523 | SP += items; | |
67955e0c | 2524 | PUTBACK ; |
2525 | } | |
2526 | } | |
67caa1fe GS |
2527 | /* We assume first XSUB in &DB::sub is the called one. */ |
2528 | if (PL_curcopdb) { | |
1d7c1841 | 2529 | SAVEVPTR(PL_curcop); |
3280af22 NIS |
2530 | PL_curcop = PL_curcopdb; |
2531 | PL_curcopdb = NULL; | |
67955e0c | 2532 | } |
2533 | /* Do we need to open block here? XXXX */ | |
0cb96387 | 2534 | (void)(*CvXSUB(cv))(aTHXo_ cv); |
748a9306 LW |
2535 | |
2536 | /* Enforce some sanity in scalar context. */ | |
3280af22 NIS |
2537 | if (gimme == G_SCALAR && ++markix != PL_stack_sp - PL_stack_base ) { |
2538 | if (markix > PL_stack_sp - PL_stack_base) | |
2539 | *(PL_stack_base + markix) = &PL_sv_undef; | |
748a9306 | 2540 | else |
3280af22 NIS |
2541 | *(PL_stack_base + markix) = *PL_stack_sp; |
2542 | PL_stack_sp = PL_stack_base + markix; | |
748a9306 | 2543 | } |
a0d0e21e LW |
2544 | } |
2545 | LEAVE; | |
2546 | return NORMAL; | |
2547 | } | |
2548 | else { | |
2549 | dMARK; | |
2550 | register I32 items = SP - MARK; | |
a0d0e21e LW |
2551 | AV* padlist = CvPADLIST(cv); |
2552 | SV** svp = AvARRAY(padlist); | |
533c011a | 2553 | push_return(PL_op->op_next); |
a0d0e21e LW |
2554 | PUSHBLOCK(cx, CXt_SUB, MARK); |
2555 | PUSHSUB(cx); | |
2556 | CvDEPTH(cv)++; | |
6b35e009 GS |
2557 | /* XXX This would be a natural place to set C<PL_compcv = cv> so |
2558 | * that eval'' ops within this sub know the correct lexical space. | |
2559 | * Owing the speed considerations, we choose to search for the cv | |
2560 | * in doeval() instead. | |
2561 | */ | |
a0d0e21e LW |
2562 | if (CvDEPTH(cv) < 2) |
2563 | (void)SvREFCNT_inc(cv); | |
2564 | else { /* save temporaries on recursion? */ | |
1d7c1841 | 2565 | PERL_STACK_OVERFLOW_CHECK(); |
93965878 | 2566 | if (CvDEPTH(cv) > AvFILLp(padlist)) { |
a0d0e21e LW |
2567 | AV *av; |
2568 | AV *newpad = newAV(); | |
4aa0a1f7 | 2569 | SV **oldpad = AvARRAY(svp[CvDEPTH(cv)-1]); |
93965878 | 2570 | I32 ix = AvFILLp((AV*)svp[1]); |
1d7c1841 | 2571 | I32 names_fill = AvFILLp((AV*)svp[0]); |
a0d0e21e | 2572 | svp = AvARRAY(svp[0]); |
748a9306 | 2573 | for ( ;ix > 0; ix--) { |
1d7c1841 | 2574 | if (names_fill >= ix && svp[ix] != &PL_sv_undef) { |
748a9306 | 2575 | char *name = SvPVX(svp[ix]); |
5f05dabc | 2576 | if ((SvFLAGS(svp[ix]) & SVf_FAKE) /* outer lexical? */ |
2577 | || *name == '&') /* anonymous code? */ | |
2578 | { | |
2579 | av_store(newpad, ix, SvREFCNT_inc(oldpad[ix])); | |
748a9306 LW |
2580 | } |
2581 | else { /* our own lexical */ | |
2582 | if (*name == '@') | |
2583 | av_store(newpad, ix, sv = (SV*)newAV()); | |
2584 | else if (*name == '%') | |
2585 | av_store(newpad, ix, sv = (SV*)newHV()); | |
2586 | else | |
2587 | av_store(newpad, ix, sv = NEWSV(0,0)); | |
2588 | SvPADMY_on(sv); | |
2589 | } | |
a0d0e21e | 2590 | } |
1d7c1841 GS |
2591 | else if (IS_PADGV(oldpad[ix]) || IS_PADCONST(oldpad[ix])) { |
2592 | av_store(newpad, ix, sv = SvREFCNT_inc(oldpad[ix])); | |
2593 | } | |
a0d0e21e | 2594 | else { |
748a9306 | 2595 | av_store(newpad, ix, sv = NEWSV(0,0)); |
a0d0e21e LW |
2596 | SvPADTMP_on(sv); |
2597 | } | |
2598 | } | |
2599 | av = newAV(); /* will be @_ */ | |
2600 | av_extend(av, 0); | |
2601 | av_store(newpad, 0, (SV*)av); | |
2602 | AvFLAGS(av) = AVf_REIFY; | |
2603 | av_store(padlist, CvDEPTH(cv), (SV*)newpad); | |
93965878 | 2604 | AvFILLp(padlist) = CvDEPTH(cv); |
a0d0e21e LW |
2605 | svp = AvARRAY(padlist); |
2606 | } | |
2607 | } | |
6d4ff0d2 MB |
2608 | #ifdef USE_THREADS |
2609 | if (!hasargs) { | |
533c011a | 2610 | AV* av = (AV*)PL_curpad[0]; |
6d4ff0d2 | 2611 | |
93965878 | 2612 | items = AvFILLp(av) + 1; |
6d4ff0d2 MB |
2613 | if (items) { |
2614 | /* Mark is at the end of the stack. */ | |
924508f0 GS |
2615 | EXTEND(SP, items); |
2616 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
2617 | SP += items; | |
6d4ff0d2 MB |
2618 | PUTBACK ; |
2619 | } | |
2620 | } | |
2621 | #endif /* USE_THREADS */ | |
1d7c1841 | 2622 | SAVEVPTR(PL_curpad); |
3280af22 | 2623 | PL_curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]); |
6d4ff0d2 MB |
2624 | #ifndef USE_THREADS |
2625 | if (hasargs) | |
2626 | #endif /* USE_THREADS */ | |
2627 | { | |
2628 | AV* av; | |
a0d0e21e LW |
2629 | SV** ary; |
2630 | ||
77a005ab | 2631 | #if 0 |
bf49b057 | 2632 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
0f15f207 | 2633 | "%p entersub preparing @_\n", thr)); |
77a005ab | 2634 | #endif |
3280af22 | 2635 | av = (AV*)PL_curpad[0]; |
221373f0 GS |
2636 | if (AvREAL(av)) { |
2637 | /* @_ is normally not REAL--this should only ever | |
2638 | * happen when DB::sub() calls things that modify @_ */ | |
2639 | av_clear(av); | |
2640 | AvREAL_off(av); | |
2641 | AvREIFY_on(av); | |
2642 | } | |
6d4ff0d2 | 2643 | #ifndef USE_THREADS |
3280af22 NIS |
2644 | cx->blk_sub.savearray = GvAV(PL_defgv); |
2645 | GvAV(PL_defgv) = (AV*)SvREFCNT_inc(av); | |
6d4ff0d2 MB |
2646 | #endif /* USE_THREADS */ |
2647 | cx->blk_sub.argarray = av; | |
a0d0e21e LW |
2648 | ++MARK; |
2649 | ||
2650 | if (items > AvMAX(av) + 1) { | |
2651 | ary = AvALLOC(av); | |
2652 | if (AvARRAY(av) != ary) { | |
2653 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); | |
2654 | SvPVX(av) = (char*)ary; | |
2655 | } | |
2656 | if (items > AvMAX(av) + 1) { | |
2657 | AvMAX(av) = items - 1; | |
2658 | Renew(ary,items,SV*); | |
2659 | AvALLOC(av) = ary; | |
2660 | SvPVX(av) = (char*)ary; | |
2661 | } | |
2662 | } | |
2663 | Copy(MARK,AvARRAY(av),items,SV*); | |
93965878 | 2664 | AvFILLp(av) = items - 1; |
a0d0e21e LW |
2665 | |
2666 | while (items--) { | |
2667 | if (*MARK) | |
2668 | SvTEMP_off(*MARK); | |
2669 | MARK++; | |
2670 | } | |
2671 | } | |
4a925ff6 GS |
2672 | /* warning must come *after* we fully set up the context |
2673 | * stuff so that __WARN__ handlers can safely dounwind() | |
2674 | * if they want to | |
2675 | */ | |
2676 | if (CvDEPTH(cv) == 100 && ckWARN(WARN_RECURSION) | |
2677 | && !(PERLDB_SUB && cv == GvCV(PL_DBsub))) | |
2678 | sub_crush_depth(cv); | |
77a005ab | 2679 | #if 0 |
bf49b057 | 2680 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
0f15f207 | 2681 | "%p entersub returning %p\n", thr, CvSTART(cv))); |
77a005ab | 2682 | #endif |
a0d0e21e LW |
2683 | RETURNOP(CvSTART(cv)); |
2684 | } | |
2685 | } | |
2686 | ||
44a8e56a | 2687 | void |
864dbfa3 | 2688 | Perl_sub_crush_depth(pTHX_ CV *cv) |
44a8e56a | 2689 | { |
2690 | if (CvANON(cv)) | |
cea2e8a9 | 2691 | Perl_warner(aTHX_ WARN_RECURSION, "Deep recursion on anonymous subroutine"); |
44a8e56a | 2692 | else { |
2693 | SV* tmpstr = sv_newmortal(); | |
2694 | gv_efullname3(tmpstr, CvGV(cv), Nullch); | |
cea2e8a9 | 2695 | Perl_warner(aTHX_ WARN_RECURSION, "Deep recursion on subroutine \"%s\"", |
599cee73 | 2696 | SvPVX(tmpstr)); |
44a8e56a | 2697 | } |
2698 | } | |
2699 | ||
a0d0e21e LW |
2700 | PP(pp_aelem) |
2701 | { | |
4e35701f | 2702 | djSP; |
a0d0e21e | 2703 | SV** svp; |
748a9306 | 2704 | I32 elem = POPi; |
68dc0745 | 2705 | AV* av = (AV*)POPs; |
533c011a NIS |
2706 | U32 lval = PL_op->op_flags & OPf_MOD; |
2707 | U32 defer = (PL_op->op_private & OPpLVAL_DEFER) && (elem > AvFILL(av)); | |
be6c24e0 | 2708 | SV *sv; |
a0d0e21e | 2709 | |
748a9306 | 2710 | if (elem > 0) |
3280af22 | 2711 | elem -= PL_curcop->cop_arybase; |
a0d0e21e LW |
2712 | if (SvTYPE(av) != SVt_PVAV) |
2713 | RETPUSHUNDEF; | |
68dc0745 | 2714 | svp = av_fetch(av, elem, lval && !defer); |
a0d0e21e | 2715 | if (lval) { |
3280af22 | 2716 | if (!svp || *svp == &PL_sv_undef) { |
68dc0745 | 2717 | SV* lv; |
2718 | if (!defer) | |
cea2e8a9 | 2719 | DIE(aTHX_ PL_no_aelem, elem); |
68dc0745 | 2720 | lv = sv_newmortal(); |
2721 | sv_upgrade(lv, SVt_PVLV); | |
2722 | LvTYPE(lv) = 'y'; | |
2723 | sv_magic(lv, Nullsv, 'y', Nullch, 0); | |
2724 | LvTARG(lv) = SvREFCNT_inc(av); | |
2725 | LvTARGOFF(lv) = elem; | |
2726 | LvTARGLEN(lv) = 1; | |
2727 | PUSHs(lv); | |
2728 | RETURN; | |
2729 | } | |
533c011a | 2730 | if (PL_op->op_private & OPpLVAL_INTRO) |
161b7d16 | 2731 | save_aelem(av, elem, svp); |
533c011a NIS |
2732 | else if (PL_op->op_private & OPpDEREF) |
2733 | vivify_ref(*svp, PL_op->op_private & OPpDEREF); | |
a0d0e21e | 2734 | } |
3280af22 | 2735 | sv = (svp ? *svp : &PL_sv_undef); |
be6c24e0 GS |
2736 | if (!lval && SvGMAGICAL(sv)) /* see note in pp_helem() */ |
2737 | sv = sv_mortalcopy(sv); | |
2738 | PUSHs(sv); | |
a0d0e21e LW |
2739 | RETURN; |
2740 | } | |
2741 | ||
02a9e968 | 2742 | void |
864dbfa3 | 2743 | Perl_vivify_ref(pTHX_ SV *sv, U32 to_what) |
02a9e968 CS |
2744 | { |
2745 | if (SvGMAGICAL(sv)) | |
2746 | mg_get(sv); | |
2747 | if (!SvOK(sv)) { | |
2748 | if (SvREADONLY(sv)) | |
cea2e8a9 | 2749 | Perl_croak(aTHX_ PL_no_modify); |
5f05dabc | 2750 | if (SvTYPE(sv) < SVt_RV) |
2751 | sv_upgrade(sv, SVt_RV); | |
2752 | else if (SvTYPE(sv) >= SVt_PV) { | |
2753 | (void)SvOOK_off(sv); | |
2754 | Safefree(SvPVX(sv)); | |
2755 | SvLEN(sv) = SvCUR(sv) = 0; | |
2756 | } | |
68dc0745 | 2757 | switch (to_what) { |
5f05dabc | 2758 | case OPpDEREF_SV: |
8c52afec | 2759 | SvRV(sv) = NEWSV(355,0); |
5f05dabc | 2760 | break; |
2761 | case OPpDEREF_AV: | |
2762 | SvRV(sv) = (SV*)newAV(); | |
2763 | break; | |
2764 | case OPpDEREF_HV: | |
2765 | SvRV(sv) = (SV*)newHV(); | |
2766 | break; | |
2767 | } | |
02a9e968 CS |
2768 | SvROK_on(sv); |
2769 | SvSETMAGIC(sv); | |
2770 | } | |
2771 | } | |
2772 | ||
a0d0e21e LW |
2773 | PP(pp_method) |
2774 | { | |
4e35701f | 2775 | djSP; |
f5d5a27c CS |
2776 | SV* sv = TOPs; |
2777 | ||
2778 | if (SvROK(sv)) { | |
eda383f2 | 2779 | SV* rsv = SvRV(sv); |
f5d5a27c CS |
2780 | if (SvTYPE(rsv) == SVt_PVCV) { |
2781 | SETs(rsv); | |
2782 | RETURN; | |
2783 | } | |
2784 | } | |
2785 | ||
2786 | SETs(method_common(sv, Null(U32*))); | |
2787 | RETURN; | |
2788 | } | |
2789 | ||
2790 | PP(pp_method_named) | |
2791 | { | |
2792 | djSP; | |
2793 | SV* sv = cSVOP->op_sv; | |
2794 | U32 hash = SvUVX(sv); | |
2795 | ||
2796 | XPUSHs(method_common(sv, &hash)); | |
2797 | RETURN; | |
2798 | } | |
2799 | ||
2800 | STATIC SV * | |
2801 | S_method_common(pTHX_ SV* meth, U32* hashp) | |
2802 | { | |
a0d0e21e LW |
2803 | SV* sv; |
2804 | SV* ob; | |
2805 | GV* gv; | |
56304f61 CS |
2806 | HV* stash; |
2807 | char* name; | |
f5d5a27c | 2808 | STRLEN namelen; |
ac91690f CS |
2809 | char* packname; |
2810 | STRLEN packlen; | |
a0d0e21e | 2811 | |
f5d5a27c | 2812 | name = SvPV(meth, namelen); |
3280af22 | 2813 | sv = *(PL_stack_base + TOPMARK + 1); |
f5d5a27c | 2814 | |
16d20bd9 AD |
2815 | if (SvGMAGICAL(sv)) |
2816 | mg_get(sv); | |
a0d0e21e | 2817 | if (SvROK(sv)) |
16d20bd9 | 2818 | ob = (SV*)SvRV(sv); |
a0d0e21e LW |
2819 | else { |
2820 | GV* iogv; | |
a0d0e21e | 2821 | |
56304f61 | 2822 | packname = Nullch; |
a0d0e21e | 2823 | if (!SvOK(sv) || |
56304f61 | 2824 | !(packname = SvPV(sv, packlen)) || |
a0d0e21e LW |
2825 | !(iogv = gv_fetchpv(packname, FALSE, SVt_PVIO)) || |
2826 | !(ob=(SV*)GvIO(iogv))) | |
2827 | { | |
834a4ddd | 2828 | if (!packname || |
7e2040f0 | 2829 | ((*(U8*)packname >= 0xc0 && DO_UTF8(sv)) |
b86a2fa7 | 2830 | ? !isIDFIRST_utf8((U8*)packname) |
834a4ddd LW |
2831 | : !isIDFIRST(*packname) |
2832 | )) | |
2833 | { | |
f5d5a27c CS |
2834 | Perl_croak(aTHX_ "Can't call method \"%s\" %s", name, |
2835 | SvOK(sv) ? "without a package or object reference" | |
2836 | : "on an undefined value"); | |
834a4ddd | 2837 | } |
56304f61 | 2838 | stash = gv_stashpvn(packname, packlen, TRUE); |
ac91690f | 2839 | goto fetch; |
a0d0e21e | 2840 | } |
3280af22 | 2841 | *(PL_stack_base + TOPMARK + 1) = sv_2mortal(newRV((SV*)iogv)); |
a0d0e21e LW |
2842 | } |
2843 | ||
f0d43078 GS |
2844 | if (!ob || !(SvOBJECT(ob) |
2845 | || (SvTYPE(ob) == SVt_PVGV && (ob = (SV*)GvIO((GV*)ob)) | |
2846 | && SvOBJECT(ob)))) | |
2847 | { | |
f5d5a27c CS |
2848 | Perl_croak(aTHX_ "Can't call method \"%s\" on unblessed reference", |
2849 | name); | |
f0d43078 | 2850 | } |
a0d0e21e | 2851 | |
56304f61 | 2852 | stash = SvSTASH(ob); |
a0d0e21e | 2853 | |
ac91690f | 2854 | fetch: |
f5d5a27c CS |
2855 | /* shortcut for simple names */ |
2856 | if (hashp) { | |
2857 | HE* he = hv_fetch_ent(stash, meth, 0, *hashp); | |
2858 | if (he) { | |
2859 | gv = (GV*)HeVAL(he); | |
2860 | if (isGV(gv) && GvCV(gv) && | |
2861 | (!GvCVGEN(gv) || GvCVGEN(gv) == PL_sub_generation)) | |
2862 | return (SV*)GvCV(gv); | |
2863 | } | |
2864 | } | |
2865 | ||
ac91690f | 2866 | gv = gv_fetchmethod(stash, name); |
56304f61 CS |
2867 | if (!gv) { |
2868 | char* leaf = name; | |
2869 | char* sep = Nullch; | |
2870 | char* p; | |
2871 | ||
2872 | for (p = name; *p; p++) { | |
2873 | if (*p == '\'') | |
2874 | sep = p, leaf = p + 1; | |
2875 | else if (*p == ':' && *(p + 1) == ':') | |
2876 | sep = p, leaf = p + 2; | |
2877 | } | |
2878 | if (!sep || ((sep - name) == 5 && strnEQ(name, "SUPER", 5))) { | |
1d7c1841 | 2879 | packname = sep ? CopSTASHPV(PL_curcop) : HvNAME(stash); |
56304f61 CS |
2880 | packlen = strlen(packname); |
2881 | } | |
2882 | else { | |
2883 | packname = name; | |
2884 | packlen = sep - name; | |
2885 | } | |
f5d5a27c CS |
2886 | Perl_croak(aTHX_ |
2887 | "Can't locate object method \"%s\" via package \"%s\"", | |
2888 | leaf, packname); | |
56304f61 | 2889 | } |
f5d5a27c | 2890 | return isGV(gv) ? (SV*)GvCV(gv) : (SV*)gv; |
a0d0e21e | 2891 | } |
22239a37 | 2892 | |
51371543 GS |
2893 | #ifdef USE_THREADS |
2894 | static void | |
2895 | unset_cvowner(pTHXo_ void *cvarg) | |
2896 | { | |
2897 | register CV* cv = (CV *) cvarg; | |
2898 | #ifdef DEBUGGING | |
2899 | dTHR; | |
2900 | #endif /* DEBUGGING */ | |
2901 | ||
bf49b057 | 2902 | DEBUG_S((PerlIO_printf(Perl_debug_log, "%p unsetting CvOWNER of %p:%s\n", |
51371543 GS |
2903 | thr, cv, SvPEEK((SV*)cv)))); |
2904 | MUTEX_LOCK(CvMUTEXP(cv)); | |
2905 | DEBUG_S(if (CvDEPTH(cv) != 0) | |
bf49b057 | 2906 | PerlIO_printf(Perl_debug_log, "depth %ld != 0\n", |
51371543 GS |
2907 | CvDEPTH(cv));); |
2908 | assert(thr == CvOWNER(cv)); | |
2909 | CvOWNER(cv) = 0; | |
2910 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
2911 | SvREFCNT_dec(cv); | |
2912 | } | |
2913 | #endif /* USE_THREADS */ |