Commit | Line | Data |
---|---|---|
a0d0e21e LW |
1 | /* pp_hot.c |
2 | * | |
4eb8286e | 3 | * Copyright (c) 1991-1999, 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 | |
9d116dd7 JH |
25 | #ifdef I_FCNTL |
26 | #include <fcntl.h> | |
27 | #endif | |
28 | #ifdef I_SYS_FILE | |
29 | #include <sys/file.h> | |
30 | #endif | |
8ac85365 | 31 | |
a0ed51b3 | 32 | |
a0d0e21e LW |
33 | /* Hot code. */ |
34 | ||
11343788 | 35 | #ifdef USE_THREADS |
51371543 | 36 | static void unset_cvowner(pTHXo_ void *cvarg); |
11343788 MB |
37 | #endif /* USE_THREADS */ |
38 | ||
a0d0e21e LW |
39 | PP(pp_const) |
40 | { | |
4e35701f | 41 | djSP; |
1d7c1841 | 42 | XPUSHs(cSVOP_sv); |
a0d0e21e LW |
43 | RETURN; |
44 | } | |
45 | ||
46 | PP(pp_nextstate) | |
47 | { | |
533c011a | 48 | PL_curcop = (COP*)PL_op; |
a0d0e21e | 49 | TAINT_NOT; /* Each statement is presumed innocent */ |
3280af22 | 50 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e LW |
51 | FREETMPS; |
52 | return NORMAL; | |
53 | } | |
54 | ||
55 | PP(pp_gvsv) | |
56 | { | |
4e35701f | 57 | djSP; |
924508f0 | 58 | EXTEND(SP,1); |
533c011a | 59 | if (PL_op->op_private & OPpLVAL_INTRO) |
1d7c1841 | 60 | PUSHs(save_scalar(cGVOP_gv)); |
a0d0e21e | 61 | else |
1d7c1841 | 62 | PUSHs(GvSV(cGVOP_gv)); |
a0d0e21e LW |
63 | RETURN; |
64 | } | |
65 | ||
66 | PP(pp_null) | |
67 | { | |
68 | return NORMAL; | |
69 | } | |
70 | ||
7399586d HS |
71 | PP(pp_setstate) |
72 | { | |
73 | PL_curcop = (COP*)PL_op; | |
74 | return NORMAL; | |
75 | } | |
76 | ||
a0d0e21e LW |
77 | PP(pp_pushmark) |
78 | { | |
3280af22 | 79 | PUSHMARK(PL_stack_sp); |
a0d0e21e LW |
80 | return NORMAL; |
81 | } | |
82 | ||
83 | PP(pp_stringify) | |
84 | { | |
4e35701f | 85 | djSP; dTARGET; |
a0d0e21e LW |
86 | STRLEN len; |
87 | char *s; | |
88 | s = SvPV(TOPs,len); | |
89 | sv_setpvn(TARG,s,len); | |
90 | SETTARG; | |
91 | RETURN; | |
92 | } | |
93 | ||
94 | PP(pp_gv) | |
95 | { | |
4e35701f | 96 | djSP; |
1d7c1841 | 97 | XPUSHs((SV*)cGVOP_gv); |
a0d0e21e LW |
98 | RETURN; |
99 | } | |
100 | ||
101 | PP(pp_and) | |
102 | { | |
4e35701f | 103 | djSP; |
a0d0e21e LW |
104 | if (!SvTRUE(TOPs)) |
105 | RETURN; | |
106 | else { | |
107 | --SP; | |
108 | RETURNOP(cLOGOP->op_other); | |
109 | } | |
110 | } | |
111 | ||
112 | PP(pp_sassign) | |
113 | { | |
4e35701f | 114 | djSP; dPOPTOPssrl; |
748a9306 LW |
115 | MAGIC *mg; |
116 | ||
533c011a | 117 | if (PL_op->op_private & OPpASSIGN_BACKWARDS) { |
a0d0e21e LW |
118 | SV *temp; |
119 | temp = left; left = right; right = temp; | |
120 | } | |
3280af22 | 121 | if (PL_tainting && PL_tainted && !SvTAINTED(left)) |
a0d0e21e | 122 | TAINT_NOT; |
54310121 | 123 | SvSetMagicSV(right, left); |
a0d0e21e LW |
124 | SETs(right); |
125 | RETURN; | |
126 | } | |
127 | ||
128 | PP(pp_cond_expr) | |
129 | { | |
4e35701f | 130 | djSP; |
a0d0e21e | 131 | if (SvTRUEx(POPs)) |
1a67a97c | 132 | RETURNOP(cLOGOP->op_other); |
a0d0e21e | 133 | else |
1a67a97c | 134 | RETURNOP(cLOGOP->op_next); |
a0d0e21e LW |
135 | } |
136 | ||
137 | PP(pp_unstack) | |
138 | { | |
139 | I32 oldsave; | |
140 | TAINT_NOT; /* Each statement is presumed innocent */ | |
3280af22 | 141 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e | 142 | FREETMPS; |
3280af22 | 143 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e LW |
144 | LEAVE_SCOPE(oldsave); |
145 | return NORMAL; | |
146 | } | |
147 | ||
a0d0e21e LW |
148 | PP(pp_concat) |
149 | { | |
4e35701f | 150 | djSP; dATARGET; tryAMAGICbin(concat,opASSIGN); |
748a9306 LW |
151 | { |
152 | dPOPTOPssrl; | |
a0d0e21e LW |
153 | STRLEN len; |
154 | char *s; | |
69b47968 | 155 | |
a0d0e21e LW |
156 | if (TARG != left) { |
157 | s = SvPV(left,len); | |
69b47968 GS |
158 | if (TARG == right) { |
159 | sv_insert(TARG, 0, 0, s, len); | |
160 | SETs(TARG); | |
161 | RETURN; | |
162 | } | |
a0d0e21e LW |
163 | sv_setpvn(TARG,s,len); |
164 | } | |
c07a80fd | 165 | else if (SvGMAGICAL(TARG)) |
166 | mg_get(TARG); | |
7a4c00b4 | 167 | else if (!SvOK(TARG) && SvTYPE(TARG) <= SVt_PVMG) { |
748a9306 | 168 | sv_setpv(TARG, ""); /* Suppress warning. */ |
7a4c00b4 | 169 | s = SvPV_force(TARG, len); |
4633a7c4 | 170 | } |
a0d0e21e | 171 | s = SvPV(right,len); |
5bc28da9 NIS |
172 | if (SvOK(TARG)) { |
173 | #if defined(PERL_Y2KWARN) | |
174 | if ((SvIOK(right) || SvNOK(right)) && ckWARN(WARN_MISC)) { | |
175 | STRLEN n; | |
176 | char *s = SvPV(TARG,n); | |
177 | if (n >= 2 && s[n-2] == '1' && s[n-1] == '9' | |
178 | && (n == 2 || !isDIGIT(s[n-3]))) | |
179 | { | |
180 | Perl_warner(aTHX_ WARN_MISC, "Possible Y2K bug: %s", | |
181 | "about to append an integer to '19'"); | |
182 | } | |
183 | } | |
184 | #endif | |
68dc0745 | 185 | sv_catpvn(TARG,s,len); |
5bc28da9 | 186 | } |
68dc0745 | 187 | else |
188 | sv_setpvn(TARG,s,len); /* suppress warning */ | |
a0d0e21e LW |
189 | SETTARG; |
190 | RETURN; | |
748a9306 | 191 | } |
a0d0e21e LW |
192 | } |
193 | ||
194 | PP(pp_padsv) | |
195 | { | |
4e35701f | 196 | djSP; dTARGET; |
a0d0e21e | 197 | XPUSHs(TARG); |
533c011a NIS |
198 | if (PL_op->op_flags & OPf_MOD) { |
199 | if (PL_op->op_private & OPpLVAL_INTRO) | |
200 | SAVECLEARSV(PL_curpad[PL_op->op_targ]); | |
201 | else if (PL_op->op_private & OPpDEREF) { | |
8ec5e241 | 202 | PUTBACK; |
533c011a | 203 | vivify_ref(PL_curpad[PL_op->op_targ], PL_op->op_private & OPpDEREF); |
8ec5e241 NIS |
204 | SPAGAIN; |
205 | } | |
4633a7c4 | 206 | } |
a0d0e21e LW |
207 | RETURN; |
208 | } | |
209 | ||
210 | PP(pp_readline) | |
211 | { | |
f5284f61 | 212 | tryAMAGICunTARGET(iter, 0); |
3280af22 | 213 | PL_last_in_gv = (GV*)(*PL_stack_sp--); |
8efb3254 GS |
214 | if (SvTYPE(PL_last_in_gv) != SVt_PVGV) { |
215 | if (SvROK(PL_last_in_gv) && SvTYPE(SvRV(PL_last_in_gv)) == SVt_PVGV) | |
f5284f61 | 216 | PL_last_in_gv = (GV*)SvRV(PL_last_in_gv); |
8efb3254 | 217 | else { |
f5284f61 IZ |
218 | dSP; |
219 | XPUSHs((SV*)PL_last_in_gv); | |
220 | PUTBACK; | |
cea2e8a9 | 221 | pp_rv2gv(); |
f5284f61 | 222 | PL_last_in_gv = (GV*)(*PL_stack_sp--); |
f5284f61 IZ |
223 | } |
224 | } | |
a0d0e21e LW |
225 | return do_readline(); |
226 | } | |
227 | ||
228 | PP(pp_eq) | |
229 | { | |
4e35701f | 230 | djSP; tryAMAGICbinSET(eq,0); |
a0d0e21e LW |
231 | { |
232 | dPOPnv; | |
54310121 | 233 | SETs(boolSV(TOPn == value)); |
a0d0e21e LW |
234 | RETURN; |
235 | } | |
236 | } | |
237 | ||
238 | PP(pp_preinc) | |
239 | { | |
4e35701f | 240 | djSP; |
68dc0745 | 241 | if (SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV) |
d470f89e | 242 | DIE(aTHX_ PL_no_modify); |
25da4f38 | 243 | if (SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) && |
55497cff | 244 | SvIVX(TOPs) != IV_MAX) |
245 | { | |
748a9306 | 246 | ++SvIVX(TOPs); |
55497cff | 247 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
748a9306 LW |
248 | } |
249 | else | |
250 | sv_inc(TOPs); | |
a0d0e21e LW |
251 | SvSETMAGIC(TOPs); |
252 | return NORMAL; | |
253 | } | |
254 | ||
255 | PP(pp_or) | |
256 | { | |
4e35701f | 257 | djSP; |
a0d0e21e LW |
258 | if (SvTRUE(TOPs)) |
259 | RETURN; | |
260 | else { | |
261 | --SP; | |
262 | RETURNOP(cLOGOP->op_other); | |
263 | } | |
264 | } | |
265 | ||
266 | PP(pp_add) | |
267 | { | |
4e35701f | 268 | djSP; dATARGET; tryAMAGICbin(add,opASSIGN); |
a0d0e21e | 269 | { |
7a4c00b4 | 270 | dPOPTOPnnrl_ul; |
a0d0e21e LW |
271 | SETn( left + right ); |
272 | RETURN; | |
273 | } | |
274 | } | |
275 | ||
276 | PP(pp_aelemfast) | |
277 | { | |
4e35701f | 278 | djSP; |
1d7c1841 | 279 | AV *av = GvAV(cGVOP_gv); |
533c011a NIS |
280 | U32 lval = PL_op->op_flags & OPf_MOD; |
281 | SV** svp = av_fetch(av, PL_op->op_private, lval); | |
3280af22 | 282 | SV *sv = (svp ? *svp : &PL_sv_undef); |
6ff81951 | 283 | EXTEND(SP, 1); |
be6c24e0 GS |
284 | if (!lval && SvGMAGICAL(sv)) /* see note in pp_helem() */ |
285 | sv = sv_mortalcopy(sv); | |
286 | PUSHs(sv); | |
a0d0e21e LW |
287 | RETURN; |
288 | } | |
289 | ||
290 | PP(pp_join) | |
291 | { | |
4e35701f | 292 | djSP; dMARK; dTARGET; |
a0d0e21e LW |
293 | MARK++; |
294 | do_join(TARG, *MARK, MARK, SP); | |
295 | SP = MARK; | |
296 | SETs(TARG); | |
297 | RETURN; | |
298 | } | |
299 | ||
300 | PP(pp_pushre) | |
301 | { | |
4e35701f | 302 | djSP; |
44a8e56a | 303 | #ifdef DEBUGGING |
304 | /* | |
305 | * We ass_u_me that LvTARGOFF() comes first, and that two STRLENs | |
306 | * will be enough to hold an OP*. | |
307 | */ | |
308 | SV* sv = sv_newmortal(); | |
309 | sv_upgrade(sv, SVt_PVLV); | |
310 | LvTYPE(sv) = '/'; | |
533c011a | 311 | Copy(&PL_op, &LvTARGOFF(sv), 1, OP*); |
44a8e56a | 312 | XPUSHs(sv); |
313 | #else | |
6b88bc9c | 314 | XPUSHs((SV*)PL_op); |
44a8e56a | 315 | #endif |
a0d0e21e LW |
316 | RETURN; |
317 | } | |
318 | ||
319 | /* Oversized hot code. */ | |
320 | ||
321 | PP(pp_print) | |
322 | { | |
4e35701f | 323 | djSP; dMARK; dORIGMARK; |
a0d0e21e LW |
324 | GV *gv; |
325 | IO *io; | |
760ac839 | 326 | register PerlIO *fp; |
236988e4 | 327 | MAGIC *mg; |
2d8e6c8d | 328 | STRLEN n_a; |
a0d0e21e | 329 | |
533c011a | 330 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e LW |
331 | gv = (GV*)*++MARK; |
332 | else | |
3280af22 | 333 | gv = PL_defoutgv; |
33c27489 | 334 | if (mg = SvTIED_mg((SV*)gv, 'q')) { |
68dc0745 | 335 | if (MARK == ORIGMARK) { |
a60c0954 NIS |
336 | /* If using default handle then we need to make space to |
337 | * pass object as 1st arg, so move other args up ... | |
338 | */ | |
4352c267 | 339 | MEXTEND(SP, 1); |
68dc0745 | 340 | ++MARK; |
341 | Move(MARK, MARK + 1, (SP - MARK) + 1, SV*); | |
342 | ++SP; | |
343 | } | |
344 | PUSHMARK(MARK - 1); | |
33c27489 | 345 | *MARK = SvTIED_obj((SV*)gv, mg); |
68dc0745 | 346 | PUTBACK; |
236988e4 | 347 | ENTER; |
864dbfa3 | 348 | call_method("PRINT", G_SCALAR); |
236988e4 | 349 | LEAVE; |
350 | SPAGAIN; | |
68dc0745 | 351 | MARK = ORIGMARK + 1; |
352 | *MARK = *SP; | |
353 | SP = MARK; | |
236988e4 | 354 | RETURN; |
355 | } | |
a0d0e21e | 356 | if (!(io = GvIO(gv))) { |
599cee73 | 357 | if (ckWARN(WARN_UNOPENED)) { |
748a9306 | 358 | SV* sv = sv_newmortal(); |
af8c498a GS |
359 | gv_efullname3(sv, gv, Nullch); |
360 | Perl_warner(aTHX_ WARN_UNOPENED, "Filehandle %s never opened", | |
361 | SvPV(sv,n_a)); | |
748a9306 | 362 | } |
748a9306 | 363 | SETERRNO(EBADF,RMS$_IFI); |
a0d0e21e LW |
364 | goto just_say_no; |
365 | } | |
366 | else if (!(fp = IoOFP(io))) { | |
599cee73 | 367 | if (ckWARN2(WARN_CLOSED, WARN_IO)) { |
69282e91 GS |
368 | if (IoIFP(io)) { |
369 | SV* sv = sv_newmortal(); | |
370 | gv_efullname3(sv, gv, Nullch); | |
af8c498a GS |
371 | Perl_warner(aTHX_ WARN_IO, |
372 | "Filehandle %s opened only for input", | |
373 | SvPV(sv,n_a)); | |
69282e91 | 374 | } |
599cee73 | 375 | else if (ckWARN(WARN_CLOSED)) |
69282e91 | 376 | report_closed_fh(gv, io, "print", "filehandle"); |
a0d0e21e | 377 | } |
748a9306 | 378 | SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI); |
a0d0e21e LW |
379 | goto just_say_no; |
380 | } | |
381 | else { | |
382 | MARK++; | |
3280af22 | 383 | if (PL_ofslen) { |
a0d0e21e LW |
384 | while (MARK <= SP) { |
385 | if (!do_print(*MARK, fp)) | |
386 | break; | |
387 | MARK++; | |
388 | if (MARK <= SP) { | |
3280af22 | 389 | if (PerlIO_write(fp, PL_ofs, PL_ofslen) == 0 || PerlIO_error(fp)) { |
a0d0e21e LW |
390 | MARK--; |
391 | break; | |
392 | } | |
393 | } | |
394 | } | |
395 | } | |
396 | else { | |
397 | while (MARK <= SP) { | |
398 | if (!do_print(*MARK, fp)) | |
399 | break; | |
400 | MARK++; | |
401 | } | |
402 | } | |
403 | if (MARK <= SP) | |
404 | goto just_say_no; | |
405 | else { | |
3280af22 NIS |
406 | if (PL_orslen) |
407 | if (PerlIO_write(fp, PL_ors, PL_orslen) == 0 || PerlIO_error(fp)) | |
a0d0e21e LW |
408 | goto just_say_no; |
409 | ||
410 | if (IoFLAGS(io) & IOf_FLUSH) | |
760ac839 | 411 | if (PerlIO_flush(fp) == EOF) |
a0d0e21e LW |
412 | goto just_say_no; |
413 | } | |
414 | } | |
415 | SP = ORIGMARK; | |
3280af22 | 416 | PUSHs(&PL_sv_yes); |
a0d0e21e LW |
417 | RETURN; |
418 | ||
419 | just_say_no: | |
420 | SP = ORIGMARK; | |
3280af22 | 421 | PUSHs(&PL_sv_undef); |
a0d0e21e LW |
422 | RETURN; |
423 | } | |
424 | ||
425 | PP(pp_rv2av) | |
426 | { | |
f5284f61 | 427 | djSP; dTOPss; |
a0d0e21e LW |
428 | AV *av; |
429 | ||
430 | if (SvROK(sv)) { | |
431 | wasref: | |
f5284f61 IZ |
432 | tryAMAGICunDEREF(to_av); |
433 | ||
a0d0e21e LW |
434 | av = (AV*)SvRV(sv); |
435 | if (SvTYPE(av) != SVt_PVAV) | |
cea2e8a9 | 436 | DIE(aTHX_ "Not an ARRAY reference"); |
533c011a | 437 | if (PL_op->op_flags & OPf_REF) { |
f5284f61 | 438 | SETs((SV*)av); |
a0d0e21e LW |
439 | RETURN; |
440 | } | |
441 | } | |
442 | else { | |
443 | if (SvTYPE(sv) == SVt_PVAV) { | |
444 | av = (AV*)sv; | |
533c011a | 445 | if (PL_op->op_flags & OPf_REF) { |
f5284f61 | 446 | SETs((SV*)av); |
a0d0e21e LW |
447 | RETURN; |
448 | } | |
449 | } | |
450 | else { | |
67955e0c | 451 | GV *gv; |
452 | ||
a0d0e21e | 453 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 | 454 | char *sym; |
2d8e6c8d | 455 | STRLEN n_a; |
748a9306 | 456 | |
a0d0e21e LW |
457 | if (SvGMAGICAL(sv)) { |
458 | mg_get(sv); | |
459 | if (SvROK(sv)) | |
460 | goto wasref; | |
461 | } | |
462 | if (!SvOK(sv)) { | |
533c011a NIS |
463 | if (PL_op->op_flags & OPf_REF || |
464 | PL_op->op_private & HINT_STRICT_REFS) | |
cea2e8a9 | 465 | DIE(aTHX_ PL_no_usym, "an ARRAY"); |
599cee73 | 466 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 467 | report_uninit(); |
f5284f61 | 468 | if (GIMME == G_ARRAY) { |
c2444246 | 469 | (void)POPs; |
4633a7c4 | 470 | RETURN; |
f5284f61 IZ |
471 | } |
472 | RETSETUNDEF; | |
a0d0e21e | 473 | } |
2d8e6c8d | 474 | sym = SvPV(sv,n_a); |
35cd451c GS |
475 | if ((PL_op->op_flags & OPf_SPECIAL) && |
476 | !(PL_op->op_flags & OPf_MOD)) | |
477 | { | |
478 | gv = (GV*)gv_fetchpv(sym, FALSE, SVt_PVAV); | |
479 | if (!gv) | |
480 | RETSETUNDEF; | |
481 | } | |
482 | else { | |
483 | if (PL_op->op_private & HINT_STRICT_REFS) | |
cea2e8a9 | 484 | DIE(aTHX_ PL_no_symref, sym, "an ARRAY"); |
35cd451c GS |
485 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVAV); |
486 | } | |
487 | } | |
488 | else { | |
67955e0c | 489 | gv = (GV*)sv; |
a0d0e21e | 490 | } |
67955e0c | 491 | av = GvAVn(gv); |
533c011a | 492 | if (PL_op->op_private & OPpLVAL_INTRO) |
67955e0c | 493 | av = save_ary(gv); |
533c011a | 494 | if (PL_op->op_flags & OPf_REF) { |
f5284f61 | 495 | SETs((SV*)av); |
a0d0e21e LW |
496 | RETURN; |
497 | } | |
498 | } | |
499 | } | |
500 | ||
501 | if (GIMME == G_ARRAY) { | |
502 | I32 maxarg = AvFILL(av) + 1; | |
c2444246 | 503 | (void)POPs; /* XXXX May be optimized away? */ |
93965878 NIS |
504 | EXTEND(SP, maxarg); |
505 | if (SvRMAGICAL(av)) { | |
506 | U32 i; | |
507 | for (i=0; i < maxarg; i++) { | |
508 | SV **svp = av_fetch(av, i, FALSE); | |
3280af22 | 509 | SP[i+1] = (svp) ? *svp : &PL_sv_undef; |
93965878 NIS |
510 | } |
511 | } | |
512 | else { | |
513 | Copy(AvARRAY(av), SP+1, maxarg, SV*); | |
514 | } | |
a0d0e21e LW |
515 | SP += maxarg; |
516 | } | |
517 | else { | |
518 | dTARGET; | |
519 | I32 maxarg = AvFILL(av) + 1; | |
f5284f61 | 520 | SETi(maxarg); |
a0d0e21e LW |
521 | } |
522 | RETURN; | |
523 | } | |
524 | ||
525 | PP(pp_rv2hv) | |
526 | { | |
4e35701f | 527 | djSP; dTOPss; |
a0d0e21e LW |
528 | HV *hv; |
529 | ||
530 | if (SvROK(sv)) { | |
531 | wasref: | |
f5284f61 IZ |
532 | tryAMAGICunDEREF(to_hv); |
533 | ||
a0d0e21e | 534 | hv = (HV*)SvRV(sv); |
c750a3ec | 535 | if (SvTYPE(hv) != SVt_PVHV && SvTYPE(hv) != SVt_PVAV) |
cea2e8a9 | 536 | DIE(aTHX_ "Not a HASH reference"); |
533c011a | 537 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e LW |
538 | SETs((SV*)hv); |
539 | RETURN; | |
540 | } | |
541 | } | |
542 | else { | |
c750a3ec | 543 | if (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) { |
a0d0e21e | 544 | hv = (HV*)sv; |
533c011a | 545 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e LW |
546 | SETs((SV*)hv); |
547 | RETURN; | |
548 | } | |
549 | } | |
550 | else { | |
67955e0c | 551 | GV *gv; |
552 | ||
a0d0e21e | 553 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 | 554 | char *sym; |
2d8e6c8d | 555 | STRLEN n_a; |
748a9306 | 556 | |
a0d0e21e LW |
557 | if (SvGMAGICAL(sv)) { |
558 | mg_get(sv); | |
559 | if (SvROK(sv)) | |
560 | goto wasref; | |
561 | } | |
562 | if (!SvOK(sv)) { | |
533c011a NIS |
563 | if (PL_op->op_flags & OPf_REF || |
564 | PL_op->op_private & HINT_STRICT_REFS) | |
cea2e8a9 | 565 | DIE(aTHX_ PL_no_usym, "a HASH"); |
599cee73 | 566 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 567 | report_uninit(); |
4633a7c4 LW |
568 | if (GIMME == G_ARRAY) { |
569 | SP--; | |
570 | RETURN; | |
571 | } | |
a0d0e21e LW |
572 | RETSETUNDEF; |
573 | } | |
2d8e6c8d | 574 | sym = SvPV(sv,n_a); |
35cd451c GS |
575 | if ((PL_op->op_flags & OPf_SPECIAL) && |
576 | !(PL_op->op_flags & OPf_MOD)) | |
577 | { | |
578 | gv = (GV*)gv_fetchpv(sym, FALSE, SVt_PVHV); | |
579 | if (!gv) | |
580 | RETSETUNDEF; | |
581 | } | |
582 | else { | |
583 | if (PL_op->op_private & HINT_STRICT_REFS) | |
cea2e8a9 | 584 | DIE(aTHX_ PL_no_symref, sym, "a HASH"); |
35cd451c GS |
585 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVHV); |
586 | } | |
587 | } | |
588 | else { | |
67955e0c | 589 | gv = (GV*)sv; |
a0d0e21e | 590 | } |
67955e0c | 591 | hv = GvHVn(gv); |
533c011a | 592 | if (PL_op->op_private & OPpLVAL_INTRO) |
67955e0c | 593 | hv = save_hash(gv); |
533c011a | 594 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e LW |
595 | SETs((SV*)hv); |
596 | RETURN; | |
597 | } | |
598 | } | |
599 | } | |
600 | ||
601 | if (GIMME == G_ARRAY) { /* array wanted */ | |
3280af22 | 602 | *PL_stack_sp = (SV*)hv; |
cea2e8a9 | 603 | return do_kv(); |
a0d0e21e LW |
604 | } |
605 | else { | |
606 | dTARGET; | |
4b154ab5 GA |
607 | if (SvTYPE(hv) == SVt_PVAV) |
608 | hv = avhv_keys((AV*)hv); | |
b9c39e73 | 609 | if (HvFILL(hv)) |
57def98f JH |
610 | Perl_sv_setpvf(aTHX_ TARG, "%"IVdf"/%"IVdf, |
611 | (IV)HvFILL(hv), (IV)HvMAX(hv) + 1); | |
a0d0e21e LW |
612 | else |
613 | sv_setiv(TARG, 0); | |
c750a3ec | 614 | |
a0d0e21e LW |
615 | SETTARG; |
616 | RETURN; | |
617 | } | |
618 | } | |
619 | ||
620 | PP(pp_aassign) | |
621 | { | |
4e35701f | 622 | djSP; |
3280af22 NIS |
623 | SV **lastlelem = PL_stack_sp; |
624 | SV **lastrelem = PL_stack_base + POPMARK; | |
625 | SV **firstrelem = PL_stack_base + POPMARK + 1; | |
a0d0e21e LW |
626 | SV **firstlelem = lastrelem + 1; |
627 | ||
628 | register SV **relem; | |
629 | register SV **lelem; | |
630 | ||
631 | register SV *sv; | |
632 | register AV *ary; | |
633 | ||
54310121 | 634 | I32 gimme; |
a0d0e21e LW |
635 | HV *hash; |
636 | I32 i; | |
637 | int magic; | |
638 | ||
3280af22 | 639 | PL_delaymagic = DM_DELAY; /* catch simultaneous items */ |
a0d0e21e LW |
640 | |
641 | /* If there's a common identifier on both sides we have to take | |
642 | * special care that assigning the identifier on the left doesn't | |
643 | * clobber a value on the right that's used later in the list. | |
644 | */ | |
533c011a | 645 | if (PL_op->op_private & OPpASSIGN_COMMON) { |
cc5e57d2 | 646 | EXTEND_MORTAL(lastrelem - firstrelem + 1); |
a0d0e21e LW |
647 | for (relem = firstrelem; relem <= lastrelem; relem++) { |
648 | /*SUPPRESS 560*/ | |
a1f49e72 CS |
649 | if (sv = *relem) { |
650 | TAINT_NOT; /* Each item is independent */ | |
a0d0e21e | 651 | *relem = sv_mortalcopy(sv); |
a1f49e72 | 652 | } |
a0d0e21e LW |
653 | } |
654 | } | |
655 | ||
656 | relem = firstrelem; | |
657 | lelem = firstlelem; | |
658 | ary = Null(AV*); | |
659 | hash = Null(HV*); | |
660 | while (lelem <= lastlelem) { | |
bbce6d69 | 661 | TAINT_NOT; /* Each item stands on its own, taintwise. */ |
a0d0e21e LW |
662 | sv = *lelem++; |
663 | switch (SvTYPE(sv)) { | |
664 | case SVt_PVAV: | |
665 | ary = (AV*)sv; | |
748a9306 | 666 | magic = SvMAGICAL(ary) != 0; |
a0d0e21e LW |
667 | |
668 | av_clear(ary); | |
7e42bd57 | 669 | av_extend(ary, lastrelem - relem); |
a0d0e21e LW |
670 | i = 0; |
671 | while (relem <= lastrelem) { /* gobble up all the rest */ | |
5117ca91 | 672 | SV **didstore; |
a0d0e21e LW |
673 | sv = NEWSV(28,0); |
674 | assert(*relem); | |
675 | sv_setsv(sv,*relem); | |
676 | *(relem++) = sv; | |
5117ca91 GS |
677 | didstore = av_store(ary,i++,sv); |
678 | if (magic) { | |
fb73857a | 679 | if (SvSMAGICAL(sv)) |
680 | mg_set(sv); | |
5117ca91 | 681 | if (!didstore) |
8127e0e3 | 682 | sv_2mortal(sv); |
5117ca91 | 683 | } |
bbce6d69 | 684 | TAINT_NOT; |
a0d0e21e LW |
685 | } |
686 | break; | |
687 | case SVt_PVHV: { | |
a0d0e21e LW |
688 | SV *tmpstr; |
689 | ||
690 | hash = (HV*)sv; | |
748a9306 | 691 | magic = SvMAGICAL(hash) != 0; |
a0d0e21e LW |
692 | hv_clear(hash); |
693 | ||
694 | while (relem < lastrelem) { /* gobble up all the rest */ | |
5117ca91 | 695 | HE *didstore; |
4633a7c4 | 696 | if (*relem) |
a0d0e21e | 697 | sv = *(relem++); |
4633a7c4 | 698 | else |
3280af22 | 699 | sv = &PL_sv_no, relem++; |
a0d0e21e LW |
700 | tmpstr = NEWSV(29,0); |
701 | if (*relem) | |
702 | sv_setsv(tmpstr,*relem); /* value */ | |
703 | *(relem++) = tmpstr; | |
5117ca91 GS |
704 | didstore = hv_store_ent(hash,sv,tmpstr,0); |
705 | if (magic) { | |
fb73857a | 706 | if (SvSMAGICAL(tmpstr)) |
707 | mg_set(tmpstr); | |
5117ca91 | 708 | if (!didstore) |
8127e0e3 | 709 | sv_2mortal(tmpstr); |
5117ca91 | 710 | } |
bbce6d69 | 711 | TAINT_NOT; |
8e07c86e | 712 | } |
6a0deba8 GS |
713 | if (relem == lastrelem) { |
714 | if (*relem) { | |
715 | HE *didstore; | |
599cee73 | 716 | if (ckWARN(WARN_UNSAFE)) { |
6a0deba8 GS |
717 | if (relem == firstrelem && |
718 | SvROK(*relem) && | |
719 | ( SvTYPE(SvRV(*relem)) == SVt_PVAV || | |
720 | SvTYPE(SvRV(*relem)) == SVt_PVHV ) ) | |
cea2e8a9 | 721 | Perl_warner(aTHX_ WARN_UNSAFE, "Reference found where even-sized list expected"); |
6a0deba8 | 722 | else |
cea2e8a9 | 723 | Perl_warner(aTHX_ WARN_UNSAFE, "Odd number of elements in hash assignment"); |
6a0deba8 GS |
724 | } |
725 | tmpstr = NEWSV(29,0); | |
726 | didstore = hv_store_ent(hash,*relem,tmpstr,0); | |
727 | if (magic) { | |
728 | if (SvSMAGICAL(tmpstr)) | |
729 | mg_set(tmpstr); | |
730 | if (!didstore) | |
8127e0e3 | 731 | sv_2mortal(tmpstr); |
6a0deba8 GS |
732 | } |
733 | TAINT_NOT; | |
734 | } | |
735 | relem++; | |
1930e939 | 736 | } |
a0d0e21e LW |
737 | } |
738 | break; | |
739 | default: | |
6fc92669 GS |
740 | if (SvIMMORTAL(sv)) { |
741 | if (relem <= lastrelem) | |
742 | relem++; | |
743 | break; | |
a0d0e21e LW |
744 | } |
745 | if (relem <= lastrelem) { | |
746 | sv_setsv(sv, *relem); | |
747 | *(relem++) = sv; | |
748 | } | |
749 | else | |
3280af22 | 750 | sv_setsv(sv, &PL_sv_undef); |
a0d0e21e LW |
751 | SvSETMAGIC(sv); |
752 | break; | |
753 | } | |
754 | } | |
3280af22 NIS |
755 | if (PL_delaymagic & ~DM_DELAY) { |
756 | if (PL_delaymagic & DM_UID) { | |
a0d0e21e | 757 | #ifdef HAS_SETRESUID |
b28d0864 | 758 | (void)setresuid(PL_uid,PL_euid,(Uid_t)-1); |
56febc5e AD |
759 | #else |
760 | # ifdef HAS_SETREUID | |
3280af22 | 761 | (void)setreuid(PL_uid,PL_euid); |
56febc5e AD |
762 | # else |
763 | # ifdef HAS_SETRUID | |
b28d0864 NIS |
764 | if ((PL_delaymagic & DM_UID) == DM_RUID) { |
765 | (void)setruid(PL_uid); | |
766 | PL_delaymagic &= ~DM_RUID; | |
a0d0e21e | 767 | } |
56febc5e AD |
768 | # endif /* HAS_SETRUID */ |
769 | # ifdef HAS_SETEUID | |
b28d0864 NIS |
770 | if ((PL_delaymagic & DM_UID) == DM_EUID) { |
771 | (void)seteuid(PL_uid); | |
772 | PL_delaymagic &= ~DM_EUID; | |
a0d0e21e | 773 | } |
56febc5e | 774 | # endif /* HAS_SETEUID */ |
b28d0864 NIS |
775 | if (PL_delaymagic & DM_UID) { |
776 | if (PL_uid != PL_euid) | |
cea2e8a9 | 777 | DIE(aTHX_ "No setreuid available"); |
b28d0864 | 778 | (void)PerlProc_setuid(PL_uid); |
a0d0e21e | 779 | } |
56febc5e AD |
780 | # endif /* HAS_SETREUID */ |
781 | #endif /* HAS_SETRESUID */ | |
d8eceb89 JH |
782 | PL_uid = PerlProc_getuid(); |
783 | PL_euid = PerlProc_geteuid(); | |
a0d0e21e | 784 | } |
3280af22 | 785 | if (PL_delaymagic & DM_GID) { |
a0d0e21e | 786 | #ifdef HAS_SETRESGID |
b28d0864 | 787 | (void)setresgid(PL_gid,PL_egid,(Gid_t)-1); |
56febc5e AD |
788 | #else |
789 | # ifdef HAS_SETREGID | |
3280af22 | 790 | (void)setregid(PL_gid,PL_egid); |
56febc5e AD |
791 | # else |
792 | # ifdef HAS_SETRGID | |
b28d0864 NIS |
793 | if ((PL_delaymagic & DM_GID) == DM_RGID) { |
794 | (void)setrgid(PL_gid); | |
795 | PL_delaymagic &= ~DM_RGID; | |
a0d0e21e | 796 | } |
56febc5e AD |
797 | # endif /* HAS_SETRGID */ |
798 | # ifdef HAS_SETEGID | |
b28d0864 NIS |
799 | if ((PL_delaymagic & DM_GID) == DM_EGID) { |
800 | (void)setegid(PL_gid); | |
801 | PL_delaymagic &= ~DM_EGID; | |
a0d0e21e | 802 | } |
56febc5e | 803 | # endif /* HAS_SETEGID */ |
b28d0864 NIS |
804 | if (PL_delaymagic & DM_GID) { |
805 | if (PL_gid != PL_egid) | |
cea2e8a9 | 806 | DIE(aTHX_ "No setregid available"); |
b28d0864 | 807 | (void)PerlProc_setgid(PL_gid); |
a0d0e21e | 808 | } |
56febc5e AD |
809 | # endif /* HAS_SETREGID */ |
810 | #endif /* HAS_SETRESGID */ | |
d8eceb89 JH |
811 | PL_gid = PerlProc_getgid(); |
812 | PL_egid = PerlProc_getegid(); | |
a0d0e21e | 813 | } |
3280af22 | 814 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
a0d0e21e | 815 | } |
3280af22 | 816 | PL_delaymagic = 0; |
54310121 | 817 | |
818 | gimme = GIMME_V; | |
819 | if (gimme == G_VOID) | |
820 | SP = firstrelem - 1; | |
821 | else if (gimme == G_SCALAR) { | |
822 | dTARGET; | |
823 | SP = firstrelem; | |
824 | SETi(lastrelem - firstrelem + 1); | |
825 | } | |
826 | else { | |
a0d0e21e LW |
827 | if (ary || hash) |
828 | SP = lastrelem; | |
829 | else | |
830 | SP = firstrelem + (lastlelem - firstlelem); | |
0c8c7a05 | 831 | lelem = firstlelem + (relem - firstrelem); |
5f05dabc | 832 | while (relem <= SP) |
3280af22 | 833 | *relem++ = (lelem <= lastlelem) ? *lelem++ : &PL_sv_undef; |
a0d0e21e | 834 | } |
54310121 | 835 | RETURN; |
a0d0e21e LW |
836 | } |
837 | ||
8782bef2 GB |
838 | PP(pp_qr) |
839 | { | |
840 | djSP; | |
841 | register PMOP *pm = cPMOP; | |
842 | SV *rv = sv_newmortal(); | |
57668c4d | 843 | SV *sv = newSVrv(rv, "Regexp"); |
8782bef2 GB |
844 | sv_magic(sv,(SV*)ReREFCNT_inc(pm->op_pmregexp),'r',0,0); |
845 | RETURNX(PUSHs(rv)); | |
846 | } | |
847 | ||
a0d0e21e LW |
848 | PP(pp_match) |
849 | { | |
4e35701f | 850 | djSP; dTARG; |
a0d0e21e LW |
851 | register PMOP *pm = cPMOP; |
852 | register char *t; | |
853 | register char *s; | |
854 | char *strend; | |
855 | I32 global; | |
f722798b IZ |
856 | I32 r_flags = REXEC_CHECKED; |
857 | char *truebase; /* Start of string */ | |
d9f97599 | 858 | register REGEXP *rx = pm->op_pmregexp; |
b3eb6a9b | 859 | bool rxtainted; |
a0d0e21e LW |
860 | I32 gimme = GIMME; |
861 | STRLEN len; | |
748a9306 | 862 | I32 minmatch = 0; |
3280af22 | 863 | I32 oldsave = PL_savestack_ix; |
f86702cc | 864 | I32 update_minmatch = 1; |
e60df1fa | 865 | I32 had_zerolen = 0; |
a0d0e21e | 866 | |
533c011a | 867 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e LW |
868 | TARG = POPs; |
869 | else { | |
54b9620d | 870 | TARG = DEFSV; |
a0d0e21e LW |
871 | EXTEND(SP,1); |
872 | } | |
c277df42 | 873 | PUTBACK; /* EVAL blocks need stack_sp. */ |
a0d0e21e LW |
874 | s = SvPV(TARG, len); |
875 | strend = s + len; | |
876 | if (!s) | |
cea2e8a9 | 877 | DIE(aTHX_ "panic: do_match"); |
b3eb6a9b | 878 | rxtainted = ((pm->op_pmdynflags & PMdf_TAINTED) || |
3280af22 | 879 | (PL_tainted && (pm->op_pmflags & PMf_RETAINT))); |
9212bbba | 880 | TAINT_NOT; |
a0d0e21e | 881 | |
48c036b1 | 882 | if (pm->op_pmdynflags & PMdf_USED) { |
c277df42 | 883 | failure: |
a0d0e21e LW |
884 | if (gimme == G_ARRAY) |
885 | RETURN; | |
886 | RETPUSHNO; | |
887 | } | |
888 | ||
3280af22 NIS |
889 | if (!rx->prelen && PL_curpm) { |
890 | pm = PL_curpm; | |
d9f97599 | 891 | rx = pm->op_pmregexp; |
a0d0e21e | 892 | } |
d9f97599 | 893 | if (rx->minlen > len) goto failure; |
c277df42 | 894 | |
a0d0e21e | 895 | truebase = t = s; |
ad94a511 IZ |
896 | |
897 | /* XXXX What part of this is needed with true \G-support? */ | |
a0d0e21e | 898 | if (global = pm->op_pmflags & PMf_GLOBAL) { |
cf93c79d | 899 | rx->startp[0] = -1; |
a0d0e21e LW |
900 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
901 | MAGIC* mg = mg_find(TARG, 'g'); | |
565764a8 | 902 | if (mg && mg->mg_len >= 0) { |
b7a35066 | 903 | if (!(rx->reganch & ROPT_GPOS_SEEN)) |
cf93c79d | 904 | rx->endp[0] = rx->startp[0] = mg->mg_len; |
0ef3e39e HS |
905 | else if (rx->reganch & ROPT_ANCH_GPOS) { |
906 | r_flags |= REXEC_IGNOREPOS; | |
cf93c79d | 907 | rx->endp[0] = rx->startp[0] = mg->mg_len; |
0ef3e39e | 908 | } |
748a9306 | 909 | minmatch = (mg->mg_flags & MGf_MINMATCH); |
f86702cc | 910 | update_minmatch = 0; |
748a9306 | 911 | } |
a0d0e21e LW |
912 | } |
913 | } | |
0ef3e39e HS |
914 | if ((gimme != G_ARRAY && !global && rx->nparens) |
915 | || SvTEMP(TARG) || PL_sawampersand) | |
916 | r_flags |= REXEC_COPY_STR; | |
f722798b | 917 | if (SvSCREAM(TARG)) |
22e551b9 IZ |
918 | r_flags |= REXEC_SCREAM; |
919 | ||
a0d0e21e | 920 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
3280af22 NIS |
921 | SAVEINT(PL_multiline); |
922 | PL_multiline = pm->op_pmflags & PMf_MULTILINE; | |
a0d0e21e LW |
923 | } |
924 | ||
925 | play_it_again: | |
cf93c79d IZ |
926 | if (global && rx->startp[0] != -1) { |
927 | t = s = rx->endp[0] + truebase; | |
d9f97599 | 928 | if ((s + rx->minlen) > strend) |
a0d0e21e | 929 | goto nope; |
f86702cc | 930 | if (update_minmatch++) |
e60df1fa | 931 | minmatch = had_zerolen; |
a0d0e21e | 932 | } |
f722798b IZ |
933 | if (rx->reganch & RE_USE_INTUIT) { |
934 | s = CALLREG_INTUIT_START(aTHX_ rx, TARG, s, strend, r_flags, NULL); | |
935 | ||
936 | if (!s) | |
937 | goto nope; | |
938 | if ( (rx->reganch & ROPT_CHECK_ALL) | |
939 | && !PL_sawampersand | |
940 | && ((rx->reganch & ROPT_NOSCAN) | |
941 | || !((rx->reganch & RE_INTUIT_TAIL) | |
942 | && (r_flags & REXEC_SCREAM)))) | |
943 | goto yup; | |
a0d0e21e | 944 | } |
cea2e8a9 | 945 | if (CALLREGEXEC(aTHX_ rx, s, strend, truebase, minmatch, TARG, NULL, r_flags)) |
bbce6d69 | 946 | { |
3280af22 | 947 | PL_curpm = pm; |
a0d0e21e | 948 | if (pm->op_pmflags & PMf_ONCE) |
48c036b1 | 949 | pm->op_pmdynflags |= PMdf_USED; |
a0d0e21e LW |
950 | goto gotcha; |
951 | } | |
952 | else | |
953 | goto ret_no; | |
954 | /*NOTREACHED*/ | |
955 | ||
956 | gotcha: | |
72311751 GS |
957 | if (rxtainted) |
958 | RX_MATCH_TAINTED_on(rx); | |
959 | TAINT_IF(RX_MATCH_TAINTED(rx)); | |
a0d0e21e LW |
960 | if (gimme == G_ARRAY) { |
961 | I32 iters, i, len; | |
962 | ||
d9f97599 | 963 | iters = rx->nparens; |
a0d0e21e LW |
964 | if (global && !iters) |
965 | i = 1; | |
966 | else | |
967 | i = 0; | |
c277df42 | 968 | SPAGAIN; /* EVAL blocks could move the stack. */ |
a0d0e21e | 969 | EXTEND(SP, iters + i); |
bbce6d69 | 970 | EXTEND_MORTAL(iters + i); |
a0d0e21e LW |
971 | for (i = !i; i <= iters; i++) { |
972 | PUSHs(sv_newmortal()); | |
973 | /*SUPPRESS 560*/ | |
cf93c79d IZ |
974 | if ((rx->startp[i] != -1) && rx->endp[i] != -1 ) { |
975 | len = rx->endp[i] - rx->startp[i]; | |
976 | s = rx->startp[i] + truebase; | |
a0d0e21e LW |
977 | sv_setpvn(*SP, s, len); |
978 | } | |
979 | } | |
980 | if (global) { | |
cf93c79d IZ |
981 | had_zerolen = (rx->startp[0] != -1 |
982 | && rx->startp[0] == rx->endp[0]); | |
c277df42 | 983 | PUTBACK; /* EVAL blocks may use stack */ |
cf93c79d | 984 | r_flags |= REXEC_IGNOREPOS | REXEC_NOT_FIRST; |
a0d0e21e LW |
985 | goto play_it_again; |
986 | } | |
f7e33566 | 987 | else if (!iters) |
bde848c5 | 988 | XPUSHs(&PL_sv_yes); |
4633a7c4 | 989 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
990 | RETURN; |
991 | } | |
992 | else { | |
993 | if (global) { | |
994 | MAGIC* mg = 0; | |
995 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) | |
996 | mg = mg_find(TARG, 'g'); | |
997 | if (!mg) { | |
998 | sv_magic(TARG, (SV*)0, 'g', Nullch, 0); | |
999 | mg = mg_find(TARG, 'g'); | |
1000 | } | |
cf93c79d IZ |
1001 | if (rx->startp[0] != -1) { |
1002 | mg->mg_len = rx->endp[0]; | |
d9f97599 | 1003 | if (rx->startp[0] == rx->endp[0]) |
748a9306 LW |
1004 | mg->mg_flags |= MGf_MINMATCH; |
1005 | else | |
1006 | mg->mg_flags &= ~MGf_MINMATCH; | |
1007 | } | |
a0d0e21e | 1008 | } |
4633a7c4 | 1009 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1010 | RETPUSHYES; |
1011 | } | |
1012 | ||
f722798b | 1013 | yup: /* Confirmed by INTUIT */ |
72311751 GS |
1014 | if (rxtainted) |
1015 | RX_MATCH_TAINTED_on(rx); | |
1016 | TAINT_IF(RX_MATCH_TAINTED(rx)); | |
3280af22 | 1017 | PL_curpm = pm; |
a0d0e21e | 1018 | if (pm->op_pmflags & PMf_ONCE) |
48c036b1 | 1019 | pm->op_pmdynflags |= PMdf_USED; |
cf93c79d IZ |
1020 | if (RX_MATCH_COPIED(rx)) |
1021 | Safefree(rx->subbeg); | |
1022 | RX_MATCH_COPIED_off(rx); | |
1023 | rx->subbeg = Nullch; | |
a0d0e21e | 1024 | if (global) { |
d9f97599 | 1025 | rx->subbeg = truebase; |
cf93c79d | 1026 | rx->startp[0] = s - truebase; |
f722798b | 1027 | rx->endp[0] = s - truebase + rx->minlen; |
cf93c79d | 1028 | rx->sublen = strend - truebase; |
a0d0e21e | 1029 | goto gotcha; |
cf93c79d | 1030 | } |
3280af22 | 1031 | if (PL_sawampersand) { |
cf93c79d | 1032 | I32 off; |
a0d0e21e | 1033 | |
cf93c79d IZ |
1034 | rx->subbeg = savepvn(t, strend - t); |
1035 | rx->sublen = strend - t; | |
1036 | RX_MATCH_COPIED_on(rx); | |
1037 | off = rx->startp[0] = s - t; | |
f722798b | 1038 | rx->endp[0] = off + rx->minlen; |
cf93c79d IZ |
1039 | } |
1040 | else { /* startp/endp are used by @- @+. */ | |
1041 | rx->startp[0] = s - truebase; | |
f722798b | 1042 | rx->endp[0] = s - truebase + rx->minlen; |
a0d0e21e | 1043 | } |
4633a7c4 | 1044 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1045 | RETPUSHYES; |
1046 | ||
1047 | nope: | |
a0d0e21e | 1048 | ret_no: |
c90c0ff4 | 1049 | if (global && !(pm->op_pmflags & PMf_CONTINUE)) { |
a0d0e21e LW |
1050 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
1051 | MAGIC* mg = mg_find(TARG, 'g'); | |
1052 | if (mg) | |
565764a8 | 1053 | mg->mg_len = -1; |
a0d0e21e LW |
1054 | } |
1055 | } | |
4633a7c4 | 1056 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1057 | if (gimme == G_ARRAY) |
1058 | RETURN; | |
1059 | RETPUSHNO; | |
1060 | } | |
1061 | ||
1062 | OP * | |
864dbfa3 | 1063 | Perl_do_readline(pTHX) |
a0d0e21e LW |
1064 | { |
1065 | dSP; dTARGETSTACKED; | |
1066 | register SV *sv; | |
1067 | STRLEN tmplen = 0; | |
1068 | STRLEN offset; | |
760ac839 | 1069 | PerlIO *fp; |
3280af22 | 1070 | register IO *io = GvIO(PL_last_in_gv); |
533c011a | 1071 | register I32 type = PL_op->op_type; |
54310121 | 1072 | I32 gimme = GIMME_V; |
e79b0511 | 1073 | MAGIC *mg; |
a0d0e21e | 1074 | |
33c27489 | 1075 | if (mg = SvTIED_mg((SV*)PL_last_in_gv, 'q')) { |
e79b0511 | 1076 | PUSHMARK(SP); |
33c27489 | 1077 | XPUSHs(SvTIED_obj((SV*)PL_last_in_gv, mg)); |
e79b0511 | 1078 | PUTBACK; |
1079 | ENTER; | |
864dbfa3 | 1080 | call_method("READLINE", gimme); |
e79b0511 | 1081 | LEAVE; |
1082 | SPAGAIN; | |
54310121 | 1083 | if (gimme == G_SCALAR) |
1084 | SvSetMagicSV_nosteal(TARG, TOPs); | |
e79b0511 | 1085 | RETURN; |
1086 | } | |
a0d0e21e LW |
1087 | fp = Nullfp; |
1088 | if (io) { | |
1089 | fp = IoIFP(io); | |
1090 | if (!fp) { | |
1091 | if (IoFLAGS(io) & IOf_ARGV) { | |
1092 | if (IoFLAGS(io) & IOf_START) { | |
a0d0e21e | 1093 | IoLINES(io) = 0; |
3280af22 | 1094 | if (av_len(GvAVn(PL_last_in_gv)) < 0) { |
1d7c1841 | 1095 | IoFLAGS(io) &= ~IOf_START; |
9d116dd7 | 1096 | do_open(PL_last_in_gv,"-",1,FALSE,O_RDONLY,0,Nullfp); |
3280af22 NIS |
1097 | sv_setpvn(GvSV(PL_last_in_gv), "-", 1); |
1098 | SvSETMAGIC(GvSV(PL_last_in_gv)); | |
a2008d6d GS |
1099 | fp = IoIFP(io); |
1100 | goto have_fp; | |
a0d0e21e LW |
1101 | } |
1102 | } | |
3280af22 | 1103 | fp = nextargv(PL_last_in_gv); |
a0d0e21e | 1104 | if (!fp) { /* Note: fp != IoIFP(io) */ |
3280af22 | 1105 | (void)do_close(PL_last_in_gv, FALSE); /* now it does*/ |
a0d0e21e LW |
1106 | } |
1107 | } | |
1108 | else if (type == OP_GLOB) { | |
1109 | SV *tmpcmd = NEWSV(55, 0); | |
1110 | SV *tmpglob = POPs; | |
1111 | ENTER; | |
1112 | SAVEFREESV(tmpcmd); | |
1113 | #ifdef VMS /* expand the wildcards right here, rather than opening a pipe, */ | |
1114 | /* since spawning off a process is a real performance hit */ | |
1115 | { | |
1116 | #include <descrip.h> | |
1117 | #include <lib$routines.h> | |
1118 | #include <nam.h> | |
1119 | #include <rmsdef.h> | |
1120 | char rslt[NAM$C_MAXRSS+1+sizeof(unsigned short int)] = {'\0','\0'}; | |
1121 | char vmsspec[NAM$C_MAXRSS+1]; | |
1122 | char *rstr = rslt + sizeof(unsigned short int), *begin, *end, *cp; | |
1123 | char tmpfnam[L_tmpnam] = "SYS$SCRATCH:"; | |
1124 | $DESCRIPTOR(dfltdsc,"SYS$DISK:[]*.*;"); | |
760ac839 | 1125 | PerlIO *tmpfp; |
a0d0e21e LW |
1126 | STRLEN i; |
1127 | struct dsc$descriptor_s wilddsc | |
1128 | = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0}; | |
1129 | struct dsc$descriptor_vs rsdsc | |
1130 | = {sizeof rslt, DSC$K_DTYPE_VT, DSC$K_CLASS_VS, rslt}; | |
1131 | unsigned long int cxt = 0, sts = 0, ok = 1, hasdir = 0, hasver = 0, isunix = 0; | |
1132 | ||
1133 | /* We could find out if there's an explicit dev/dir or version | |
1134 | by peeking into lib$find_file's internal context at | |
1135 | ((struct NAM *)((struct FAB *)cxt)->fab$l_nam)->nam$l_fnb | |
1136 | but that's unsupported, so I don't want to do it now and | |
1137 | have it bite someone in the future. */ | |
6ad3d225 | 1138 | strcat(tmpfnam,PerlLIO_tmpnam(NULL)); |
a0d0e21e LW |
1139 | cp = SvPV(tmpglob,i); |
1140 | for (; i; i--) { | |
1141 | if (cp[i] == ';') hasver = 1; | |
1142 | if (cp[i] == '.') { | |
1143 | if (sts) hasver = 1; | |
1144 | else sts = 1; | |
1145 | } | |
1146 | if (cp[i] == '/') { | |
1147 | hasdir = isunix = 1; | |
1148 | break; | |
748a9306 | 1149 | } |
a0d0e21e LW |
1150 | if (cp[i] == ']' || cp[i] == '>' || cp[i] == ':') { |
1151 | hasdir = 1; | |
1152 | break; | |
1153 | } | |
1154 | } | |
760ac839 | 1155 | if ((tmpfp = PerlIO_open(tmpfnam,"w+","fop=dlt")) != NULL) { |
09b7f37c | 1156 | Stat_t st; |
c6ed36e1 | 1157 | if (!PerlLIO_stat(SvPVX(tmpglob),&st) && S_ISDIR(st.st_mode)) |
09b7f37c CB |
1158 | ok = ((wilddsc.dsc$a_pointer = tovmspath(SvPVX(tmpglob),vmsspec)) != NULL); |
1159 | else ok = ((wilddsc.dsc$a_pointer = tovmsspec(SvPVX(tmpglob),vmsspec)) != NULL); | |
a0d0e21e LW |
1160 | if (ok) wilddsc.dsc$w_length = (unsigned short int) strlen(wilddsc.dsc$a_pointer); |
1161 | while (ok && ((sts = lib$find_file(&wilddsc,&rsdsc,&cxt, | |
1162 | &dfltdsc,NULL,NULL,NULL))&1)) { | |
1163 | end = rstr + (unsigned long int) *rslt; | |
1164 | if (!hasver) while (*end != ';') end--; | |
1165 | *(end++) = '\n'; *end = '\0'; | |
1166 | for (cp = rstr; *cp; cp++) *cp = _tolower(*cp); | |
1167 | if (hasdir) { | |
f86702cc | 1168 | if (isunix) trim_unixpath(rstr,SvPVX(tmpglob),1); |
a0d0e21e LW |
1169 | begin = rstr; |
1170 | } | |
1171 | else { | |
1172 | begin = end; | |
1173 | while (*(--begin) != ']' && *begin != '>') ; | |
1174 | ++begin; | |
1175 | } | |
760ac839 | 1176 | ok = (PerlIO_puts(tmpfp,begin) != EOF); |
a0d0e21e LW |
1177 | } |
1178 | if (cxt) (void)lib$find_file_end(&cxt); | |
748a9306 LW |
1179 | if (ok && sts != RMS$_NMF && |
1180 | sts != RMS$_DNF && sts != RMS$_FNF) ok = 0; | |
a0d0e21e | 1181 | if (!ok) { |
c07a80fd | 1182 | if (!(sts & 1)) { |
1183 | SETERRNO((sts == RMS$_SYN ? EINVAL : EVMSERR),sts); | |
1184 | } | |
760ac839 | 1185 | PerlIO_close(tmpfp); |
a0d0e21e LW |
1186 | fp = NULL; |
1187 | } | |
1188 | else { | |
760ac839 | 1189 | PerlIO_rewind(tmpfp); |
a0d0e21e LW |
1190 | IoTYPE(io) = '<'; |
1191 | IoIFP(io) = fp = tmpfp; | |
1e422769 | 1192 | IoFLAGS(io) &= ~IOf_UNTAINT; /* maybe redundant */ |
a0d0e21e LW |
1193 | } |
1194 | } | |
1195 | } | |
1196 | #else /* !VMS */ | |
1d7c1841 GS |
1197 | #ifdef MACOS_TRADITIONAL |
1198 | sv_setpv(tmpcmd, "glob "); | |
1199 | sv_catsv(tmpcmd, tmpglob); | |
1200 | sv_catpv(tmpcmd, " |"); | |
1201 | #else | |
a0d0e21e | 1202 | #ifdef DOSISH |
67955e0c | 1203 | #ifdef OS2 |
1204 | sv_setpv(tmpcmd, "for a in "); | |
1205 | sv_catsv(tmpcmd, tmpglob); | |
1206 | sv_catpv(tmpcmd, "; do echo \"$a\\0\\c\"; done |"); | |
1207 | #else | |
39e571d4 LM |
1208 | #ifdef DJGPP |
1209 | sv_setpv(tmpcmd, "/dev/dosglob/"); /* File System Extension */ | |
1210 | sv_catsv(tmpcmd, tmpglob); | |
1211 | #else | |
a0d0e21e LW |
1212 | sv_setpv(tmpcmd, "perlglob "); |
1213 | sv_catsv(tmpcmd, tmpglob); | |
1214 | sv_catpv(tmpcmd, " |"); | |
39e571d4 | 1215 | #endif /* !DJGPP */ |
67955e0c | 1216 | #endif /* !OS2 */ |
1217 | #else /* !DOSISH */ | |
1218 | #if defined(CSH) | |
3280af22 | 1219 | sv_setpvn(tmpcmd, PL_cshname, PL_cshlen); |
a0d0e21e LW |
1220 | sv_catpv(tmpcmd, " -cf 'set nonomatch; glob "); |
1221 | sv_catsv(tmpcmd, tmpglob); | |
16d20bd9 | 1222 | sv_catpv(tmpcmd, "' 2>/dev/null |"); |
a0d0e21e LW |
1223 | #else |
1224 | sv_setpv(tmpcmd, "echo "); | |
1225 | sv_catsv(tmpcmd, tmpglob); | |
1226 | #if 'z' - 'a' == 25 | |
1227 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\012\\012\\012\\012'|"); | |
1228 | #else | |
1229 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\n\\n\\n\\n'|"); | |
1230 | #endif | |
1231 | #endif /* !CSH */ | |
67955e0c | 1232 | #endif /* !DOSISH */ |
1d7c1841 | 1233 | #endif /* MACOS_TRADITIONAL */ |
3280af22 | 1234 | (void)do_open(PL_last_in_gv, SvPVX(tmpcmd), SvCUR(tmpcmd), |
9d116dd7 | 1235 | FALSE, O_RDONLY, 0, Nullfp); |
a0d0e21e LW |
1236 | fp = IoIFP(io); |
1237 | #endif /* !VMS */ | |
1238 | LEAVE; | |
1239 | } | |
1240 | } | |
1241 | else if (type == OP_GLOB) | |
1242 | SP--; | |
af8c498a GS |
1243 | else if (ckWARN(WARN_IO) /* stdout/stderr or other write fh */ |
1244 | && (IoTYPE(io) == '>' || fp == PerlIO_stdout() | |
1245 | || fp == PerlIO_stderr())) | |
1246 | { | |
1247 | SV* sv = sv_newmortal(); | |
1248 | gv_efullname3(sv, PL_last_in_gv, Nullch); | |
1249 | Perl_warner(aTHX_ WARN_IO, "Filehandle %s opened only for output", | |
1250 | SvPV_nolen(sv)); | |
1251 | } | |
a0d0e21e LW |
1252 | } |
1253 | if (!fp) { | |
3f4520fe GS |
1254 | if (ckWARN(WARN_CLOSED) && io && !(IoFLAGS(io) & IOf_START)) { |
1255 | if (type == OP_GLOB) | |
af8c498a GS |
1256 | Perl_warner(aTHX_ WARN_CLOSED, |
1257 | "glob failed (can't start child: %s)", | |
1258 | Strerror(errno)); | |
69282e91 GS |
1259 | else |
1260 | report_closed_fh(PL_last_in_gv, io, "readline", "filehandle"); | |
3f4520fe | 1261 | } |
54310121 | 1262 | if (gimme == G_SCALAR) { |
a0d0e21e LW |
1263 | (void)SvOK_off(TARG); |
1264 | PUSHTARG; | |
1265 | } | |
1266 | RETURN; | |
1267 | } | |
a2008d6d | 1268 | have_fp: |
54310121 | 1269 | if (gimme == G_SCALAR) { |
a0d0e21e | 1270 | sv = TARG; |
9607fc9c | 1271 | if (SvROK(sv)) |
1272 | sv_unref(sv); | |
a0d0e21e LW |
1273 | (void)SvUPGRADE(sv, SVt_PV); |
1274 | tmplen = SvLEN(sv); /* remember if already alloced */ | |
1275 | if (!tmplen) | |
1276 | Sv_Grow(sv, 80); /* try short-buffering it */ | |
1277 | if (type == OP_RCATLINE) | |
1278 | offset = SvCUR(sv); | |
1279 | else | |
1280 | offset = 0; | |
1281 | } | |
54310121 | 1282 | else { |
1283 | sv = sv_2mortal(NEWSV(57, 80)); | |
1284 | offset = 0; | |
1285 | } | |
fbad3eb5 | 1286 | |
684bef36 | 1287 | /* delay EOF state for a snarfed empty file */ |
fbad3eb5 | 1288 | #define SNARF_EOF(gimme,rs,io,sv) \ |
684bef36 GS |
1289 | (gimme != G_SCALAR || SvCUR(sv) \ |
1290 | || !RsSNARF(rs) || (IoFLAGS(io) & IOf_NOLINE) \ | |
1291 | || ((IoFLAGS(io) |= IOf_NOLINE), FALSE)) | |
fbad3eb5 | 1292 | |
a0d0e21e | 1293 | for (;;) { |
fbad3eb5 GS |
1294 | if (!sv_gets(sv, fp, offset) |
1295 | && (type == OP_GLOB || SNARF_EOF(gimme, PL_rs, io, sv))) | |
1296 | { | |
760ac839 | 1297 | PerlIO_clearerr(fp); |
a0d0e21e | 1298 | if (IoFLAGS(io) & IOf_ARGV) { |
3280af22 | 1299 | fp = nextargv(PL_last_in_gv); |
a0d0e21e LW |
1300 | if (fp) |
1301 | continue; | |
3280af22 | 1302 | (void)do_close(PL_last_in_gv, FALSE); |
a0d0e21e LW |
1303 | } |
1304 | else if (type == OP_GLOB) { | |
4eb79ab5 | 1305 | if (!do_close(PL_last_in_gv, FALSE) && ckWARN(WARN_CLOSED)) { |
cea2e8a9 | 1306 | Perl_warner(aTHX_ WARN_CLOSED, |
4eb79ab5 | 1307 | "glob failed (child exited with status %d%s)", |
894356b3 | 1308 | (int)(STATUS_CURRENT >> 8), |
cf494569 | 1309 | (STATUS_CURRENT & 0x80) ? ", core dumped" : ""); |
4eb79ab5 | 1310 | } |
a0d0e21e | 1311 | } |
54310121 | 1312 | if (gimme == G_SCALAR) { |
a0d0e21e LW |
1313 | (void)SvOK_off(TARG); |
1314 | PUSHTARG; | |
1315 | } | |
1316 | RETURN; | |
1317 | } | |
bbce6d69 | 1318 | /* This should not be marked tainted if the fp is marked clean */ |
1319 | if (!(IoFLAGS(io) & IOf_UNTAINT)) { | |
1320 | TAINT; | |
1321 | SvTAINTED_on(sv); | |
1322 | } | |
a0d0e21e | 1323 | IoLINES(io)++; |
71be2cbc | 1324 | SvSETMAGIC(sv); |
a0d0e21e | 1325 | XPUSHs(sv); |
a0d0e21e LW |
1326 | if (type == OP_GLOB) { |
1327 | char *tmps; | |
1328 | ||
3280af22 | 1329 | if (SvCUR(sv) > 0 && SvCUR(PL_rs) > 0) { |
c07a80fd | 1330 | tmps = SvEND(sv) - 1; |
3280af22 | 1331 | if (*tmps == *SvPVX(PL_rs)) { |
c07a80fd | 1332 | *tmps = '\0'; |
1333 | SvCUR(sv)--; | |
1334 | } | |
1335 | } | |
a0d0e21e LW |
1336 | for (tmps = SvPVX(sv); *tmps; tmps++) |
1337 | if (!isALPHA(*tmps) && !isDIGIT(*tmps) && | |
1338 | strchr("$&*(){}[]'\";\\|?<>~`", *tmps)) | |
1339 | break; | |
43384a1a | 1340 | if (*tmps && PerlLIO_lstat(SvPVX(sv), &PL_statbuf) < 0) { |
a0d0e21e LW |
1341 | (void)POPs; /* Unmatched wildcard? Chuck it... */ |
1342 | continue; | |
1343 | } | |
1344 | } | |
54310121 | 1345 | if (gimme == G_ARRAY) { |
a0d0e21e LW |
1346 | if (SvLEN(sv) - SvCUR(sv) > 20) { |
1347 | SvLEN_set(sv, SvCUR(sv)+1); | |
1348 | Renew(SvPVX(sv), SvLEN(sv), char); | |
1349 | } | |
1350 | sv = sv_2mortal(NEWSV(58, 80)); | |
1351 | continue; | |
1352 | } | |
54310121 | 1353 | else if (gimme == G_SCALAR && !tmplen && SvLEN(sv) - SvCUR(sv) > 80) { |
a0d0e21e LW |
1354 | /* try to reclaim a bit of scalar space (only on 1st alloc) */ |
1355 | if (SvCUR(sv) < 60) | |
1356 | SvLEN_set(sv, 80); | |
1357 | else | |
1358 | SvLEN_set(sv, SvCUR(sv)+40); /* allow some slop */ | |
1359 | Renew(SvPVX(sv), SvLEN(sv), char); | |
1360 | } | |
1361 | RETURN; | |
1362 | } | |
1363 | } | |
1364 | ||
1365 | PP(pp_enter) | |
1366 | { | |
4e35701f | 1367 | djSP; |
c09156bb | 1368 | register PERL_CONTEXT *cx; |
533c011a | 1369 | I32 gimme = OP_GIMME(PL_op, -1); |
a0d0e21e | 1370 | |
54310121 | 1371 | if (gimme == -1) { |
1372 | if (cxstack_ix >= 0) | |
1373 | gimme = cxstack[cxstack_ix].blk_gimme; | |
1374 | else | |
1375 | gimme = G_SCALAR; | |
1376 | } | |
a0d0e21e LW |
1377 | |
1378 | ENTER; | |
1379 | ||
1380 | SAVETMPS; | |
924508f0 | 1381 | PUSHBLOCK(cx, CXt_BLOCK, SP); |
a0d0e21e LW |
1382 | |
1383 | RETURN; | |
1384 | } | |
1385 | ||
1386 | PP(pp_helem) | |
1387 | { | |
4e35701f | 1388 | djSP; |
760ac839 | 1389 | HE* he; |
ae77835f | 1390 | SV **svp; |
a0d0e21e | 1391 | SV *keysv = POPs; |
a0d0e21e | 1392 | HV *hv = (HV*)POPs; |
533c011a NIS |
1393 | U32 lval = PL_op->op_flags & OPf_MOD; |
1394 | U32 defer = PL_op->op_private & OPpLVAL_DEFER; | |
be6c24e0 | 1395 | SV *sv; |
a0d0e21e | 1396 | |
ae77835f MB |
1397 | if (SvTYPE(hv) == SVt_PVHV) { |
1398 | he = hv_fetch_ent(hv, keysv, lval && !defer, 0); | |
97fcbf96 | 1399 | svp = he ? &HeVAL(he) : 0; |
ae77835f MB |
1400 | } |
1401 | else if (SvTYPE(hv) == SVt_PVAV) { | |
0ebe0038 | 1402 | if (PL_op->op_private & OPpLVAL_INTRO) |
cea2e8a9 | 1403 | DIE(aTHX_ "Can't localize pseudo-hash element"); |
97fcbf96 | 1404 | svp = avhv_fetch_ent((AV*)hv, keysv, lval && !defer, 0); |
ae77835f | 1405 | } |
c750a3ec | 1406 | else { |
a0d0e21e | 1407 | RETPUSHUNDEF; |
c750a3ec | 1408 | } |
a0d0e21e | 1409 | if (lval) { |
3280af22 | 1410 | if (!svp || *svp == &PL_sv_undef) { |
68dc0745 | 1411 | SV* lv; |
1412 | SV* key2; | |
2d8e6c8d GS |
1413 | if (!defer) { |
1414 | STRLEN n_a; | |
cea2e8a9 | 1415 | DIE(aTHX_ PL_no_helem, SvPV(keysv, n_a)); |
2d8e6c8d | 1416 | } |
68dc0745 | 1417 | lv = sv_newmortal(); |
1418 | sv_upgrade(lv, SVt_PVLV); | |
1419 | LvTYPE(lv) = 'y'; | |
1420 | sv_magic(lv, key2 = newSVsv(keysv), 'y', Nullch, 0); | |
1421 | SvREFCNT_dec(key2); /* sv_magic() increments refcount */ | |
1422 | LvTARG(lv) = SvREFCNT_inc(hv); | |
1423 | LvTARGLEN(lv) = 1; | |
1424 | PUSHs(lv); | |
1425 | RETURN; | |
1426 | } | |
533c011a | 1427 | if (PL_op->op_private & OPpLVAL_INTRO) { |
ae77835f | 1428 | if (HvNAME(hv) && isGV(*svp)) |
533c011a | 1429 | save_gp((GV*)*svp, !(PL_op->op_flags & OPf_SPECIAL)); |
5f05dabc | 1430 | else |
161b7d16 | 1431 | save_helem(hv, keysv, svp); |
5f05dabc | 1432 | } |
533c011a NIS |
1433 | else if (PL_op->op_private & OPpDEREF) |
1434 | vivify_ref(*svp, PL_op->op_private & OPpDEREF); | |
a0d0e21e | 1435 | } |
3280af22 | 1436 | sv = (svp ? *svp : &PL_sv_undef); |
be6c24e0 GS |
1437 | /* This makes C<local $tied{foo} = $tied{foo}> possible. |
1438 | * Pushing the magical RHS on to the stack is useless, since | |
1439 | * that magic is soon destined to be misled by the local(), | |
1440 | * and thus the later pp_sassign() will fail to mg_get() the | |
1441 | * old value. This should also cure problems with delayed | |
1442 | * mg_get()s. GSAR 98-07-03 */ | |
1443 | if (!lval && SvGMAGICAL(sv)) | |
1444 | sv = sv_mortalcopy(sv); | |
1445 | PUSHs(sv); | |
a0d0e21e LW |
1446 | RETURN; |
1447 | } | |
1448 | ||
1449 | PP(pp_leave) | |
1450 | { | |
4e35701f | 1451 | djSP; |
c09156bb | 1452 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
1453 | register SV **mark; |
1454 | SV **newsp; | |
1455 | PMOP *newpm; | |
1456 | I32 gimme; | |
1457 | ||
533c011a | 1458 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e | 1459 | cx = &cxstack[cxstack_ix]; |
3280af22 | 1460 | cx->blk_oldpm = PL_curpm; /* fake block should preserve $1 et al */ |
a0d0e21e LW |
1461 | } |
1462 | ||
1463 | POPBLOCK(cx,newpm); | |
1464 | ||
533c011a | 1465 | gimme = OP_GIMME(PL_op, -1); |
54310121 | 1466 | if (gimme == -1) { |
1467 | if (cxstack_ix >= 0) | |
1468 | gimme = cxstack[cxstack_ix].blk_gimme; | |
1469 | else | |
1470 | gimme = G_SCALAR; | |
1471 | } | |
a0d0e21e | 1472 | |
a1f49e72 | 1473 | TAINT_NOT; |
54310121 | 1474 | if (gimme == G_VOID) |
1475 | SP = newsp; | |
1476 | else if (gimme == G_SCALAR) { | |
1477 | MARK = newsp + 1; | |
1478 | if (MARK <= SP) | |
1479 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) | |
1480 | *MARK = TOPs; | |
1481 | else | |
1482 | *MARK = sv_mortalcopy(TOPs); | |
a0d0e21e | 1483 | else { |
54310121 | 1484 | MEXTEND(mark,0); |
3280af22 | 1485 | *MARK = &PL_sv_undef; |
a0d0e21e | 1486 | } |
54310121 | 1487 | SP = MARK; |
a0d0e21e | 1488 | } |
54310121 | 1489 | else if (gimme == G_ARRAY) { |
a1f49e72 CS |
1490 | /* in case LEAVE wipes old return values */ |
1491 | for (mark = newsp + 1; mark <= SP; mark++) { | |
1492 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) { | |
a0d0e21e | 1493 | *mark = sv_mortalcopy(*mark); |
a1f49e72 CS |
1494 | TAINT_NOT; /* Each item is independent */ |
1495 | } | |
1496 | } | |
a0d0e21e | 1497 | } |
3280af22 | 1498 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e LW |
1499 | |
1500 | LEAVE; | |
1501 | ||
1502 | RETURN; | |
1503 | } | |
1504 | ||
1505 | PP(pp_iter) | |
1506 | { | |
4e35701f | 1507 | djSP; |
c09156bb | 1508 | register PERL_CONTEXT *cx; |
5f05dabc | 1509 | SV* sv; |
4633a7c4 | 1510 | AV* av; |
1d7c1841 | 1511 | SV **itersvp; |
a0d0e21e | 1512 | |
924508f0 | 1513 | EXTEND(SP, 1); |
a0d0e21e | 1514 | cx = &cxstack[cxstack_ix]; |
6b35e009 | 1515 | if (CxTYPE(cx) != CXt_LOOP) |
cea2e8a9 | 1516 | DIE(aTHX_ "panic: pp_iter"); |
a0d0e21e | 1517 | |
1d7c1841 | 1518 | itersvp = CxITERVAR(cx); |
4633a7c4 | 1519 | av = cx->blk_loop.iterary; |
89ea2908 GA |
1520 | if (SvTYPE(av) != SVt_PVAV) { |
1521 | /* iterate ($min .. $max) */ | |
1522 | if (cx->blk_loop.iterlval) { | |
1523 | /* string increment */ | |
1524 | register SV* cur = cx->blk_loop.iterlval; | |
1525 | STRLEN maxlen; | |
1526 | char *max = SvPV((SV*)av, maxlen); | |
1527 | if (!SvNIOK(cur) && SvCUR(cur) <= maxlen) { | |
eaa5c2d6 | 1528 | #ifndef USE_THREADS /* don't risk potential race */ |
1d7c1841 | 1529 | if (SvREFCNT(*itersvp) == 1 && !SvMAGICAL(*itersvp)) { |
eaa5c2d6 | 1530 | /* safe to reuse old SV */ |
1d7c1841 | 1531 | sv_setsv(*itersvp, cur); |
eaa5c2d6 GA |
1532 | } |
1533 | else | |
1534 | #endif | |
1535 | { | |
1536 | /* we need a fresh SV every time so that loop body sees a | |
1537 | * completely new SV for closures/references to work as | |
1538 | * they used to */ | |
1d7c1841 GS |
1539 | SvREFCNT_dec(*itersvp); |
1540 | *itersvp = newSVsv(cur); | |
eaa5c2d6 | 1541 | } |
89ea2908 GA |
1542 | if (strEQ(SvPVX(cur), max)) |
1543 | sv_setiv(cur, 0); /* terminate next time */ | |
1544 | else | |
1545 | sv_inc(cur); | |
1546 | RETPUSHYES; | |
1547 | } | |
1548 | RETPUSHNO; | |
1549 | } | |
1550 | /* integer increment */ | |
1551 | if (cx->blk_loop.iterix > cx->blk_loop.itermax) | |
1552 | RETPUSHNO; | |
7f61b687 | 1553 | |
eaa5c2d6 | 1554 | #ifndef USE_THREADS /* don't risk potential race */ |
1d7c1841 | 1555 | if (SvREFCNT(*itersvp) == 1 && !SvMAGICAL(*itersvp)) { |
eaa5c2d6 | 1556 | /* safe to reuse old SV */ |
1d7c1841 | 1557 | sv_setiv(*itersvp, cx->blk_loop.iterix++); |
eaa5c2d6 GA |
1558 | } |
1559 | else | |
1560 | #endif | |
1561 | { | |
1562 | /* we need a fresh SV every time so that loop body sees a | |
1563 | * completely new SV for closures/references to work as they | |
1564 | * used to */ | |
1d7c1841 GS |
1565 | SvREFCNT_dec(*itersvp); |
1566 | *itersvp = newSViv(cx->blk_loop.iterix++); | |
eaa5c2d6 | 1567 | } |
89ea2908 GA |
1568 | RETPUSHYES; |
1569 | } | |
1570 | ||
1571 | /* iterate array */ | |
3280af22 | 1572 | if (cx->blk_loop.iterix >= (av == PL_curstack ? cx->blk_oldsp : AvFILL(av))) |
4633a7c4 | 1573 | RETPUSHNO; |
a0d0e21e | 1574 | |
1d7c1841 | 1575 | SvREFCNT_dec(*itersvp); |
a0d0e21e | 1576 | |
93965878 NIS |
1577 | if (sv = (SvMAGICAL(av)) |
1578 | ? *av_fetch(av, ++cx->blk_loop.iterix, FALSE) | |
1579 | : AvARRAY(av)[++cx->blk_loop.iterix]) | |
a0d0e21e | 1580 | SvTEMP_off(sv); |
a0d0e21e | 1581 | else |
3280af22 NIS |
1582 | sv = &PL_sv_undef; |
1583 | if (av != PL_curstack && SvIMMORTAL(sv)) { | |
5f05dabc | 1584 | SV *lv = cx->blk_loop.iterlval; |
71be2cbc | 1585 | if (lv && SvREFCNT(lv) > 1) { |
1586 | SvREFCNT_dec(lv); | |
1587 | lv = Nullsv; | |
1588 | } | |
5f05dabc | 1589 | if (lv) |
1590 | SvREFCNT_dec(LvTARG(lv)); | |
1591 | else { | |
68dc0745 | 1592 | lv = cx->blk_loop.iterlval = NEWSV(26, 0); |
5f05dabc | 1593 | sv_upgrade(lv, SVt_PVLV); |
5f05dabc | 1594 | LvTYPE(lv) = 'y'; |
68dc0745 | 1595 | sv_magic(lv, Nullsv, 'y', Nullch, 0); |
5f05dabc | 1596 | } |
1597 | LvTARG(lv) = SvREFCNT_inc(av); | |
1598 | LvTARGOFF(lv) = cx->blk_loop.iterix; | |
42718184 | 1599 | LvTARGLEN(lv) = (STRLEN)UV_MAX; |
5f05dabc | 1600 | sv = (SV*)lv; |
1601 | } | |
a0d0e21e | 1602 | |
1d7c1841 | 1603 | *itersvp = SvREFCNT_inc(sv); |
a0d0e21e LW |
1604 | RETPUSHYES; |
1605 | } | |
1606 | ||
1607 | PP(pp_subst) | |
1608 | { | |
4e35701f | 1609 | djSP; dTARG; |
a0d0e21e LW |
1610 | register PMOP *pm = cPMOP; |
1611 | PMOP *rpm = pm; | |
1612 | register SV *dstr; | |
1613 | register char *s; | |
1614 | char *strend; | |
1615 | register char *m; | |
1616 | char *c; | |
1617 | register char *d; | |
1618 | STRLEN clen; | |
1619 | I32 iters = 0; | |
1620 | I32 maxiters; | |
1621 | register I32 i; | |
1622 | bool once; | |
71be2cbc | 1623 | bool rxtainted; |
a0d0e21e | 1624 | char *orig; |
22e551b9 | 1625 | I32 r_flags; |
d9f97599 | 1626 | register REGEXP *rx = pm->op_pmregexp; |
a0d0e21e LW |
1627 | STRLEN len; |
1628 | int force_on_match = 0; | |
3280af22 | 1629 | I32 oldsave = PL_savestack_ix; |
c277df42 | 1630 | I32 update_minmatch = 1; |
a0d0e21e | 1631 | |
5cd24f17 | 1632 | /* known replacement string? */ |
1633 | dstr = (pm->op_pmflags & PMf_CONST) ? POPs : Nullsv; | |
533c011a | 1634 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e LW |
1635 | TARG = POPs; |
1636 | else { | |
54b9620d | 1637 | TARG = DEFSV; |
a0d0e21e | 1638 | EXTEND(SP,1); |
8ec5e241 | 1639 | } |
68dc0745 | 1640 | if (SvREADONLY(TARG) |
1641 | || (SvTYPE(TARG) > SVt_PVLV | |
1642 | && !(SvTYPE(TARG) == SVt_PVGV && SvFAKE(TARG)))) | |
d470f89e | 1643 | DIE(aTHX_ PL_no_modify); |
8ec5e241 NIS |
1644 | PUTBACK; |
1645 | ||
a0d0e21e | 1646 | s = SvPV(TARG, len); |
68dc0745 | 1647 | if (!SvPOKp(TARG) || SvTYPE(TARG) == SVt_PVGV) |
a0d0e21e | 1648 | force_on_match = 1; |
b3eb6a9b | 1649 | rxtainted = ((pm->op_pmdynflags & PMdf_TAINTED) || |
3280af22 NIS |
1650 | (PL_tainted && (pm->op_pmflags & PMf_RETAINT))); |
1651 | if (PL_tainted) | |
b3eb6a9b | 1652 | rxtainted |= 2; |
9212bbba | 1653 | TAINT_NOT; |
a0d0e21e LW |
1654 | |
1655 | force_it: | |
1656 | if (!pm || !s) | |
cea2e8a9 | 1657 | DIE(aTHX_ "panic: do_subst"); |
a0d0e21e LW |
1658 | |
1659 | strend = s + len; | |
2beec16e IZ |
1660 | maxiters = 2*(strend - s) + 10; /* We can match twice at each |
1661 | position, once with zero-length, | |
1662 | second time with non-zero. */ | |
a0d0e21e | 1663 | |
3280af22 NIS |
1664 | if (!rx->prelen && PL_curpm) { |
1665 | pm = PL_curpm; | |
d9f97599 | 1666 | rx = pm->op_pmregexp; |
a0d0e21e | 1667 | } |
22e551b9 | 1668 | r_flags = (rx->nparens || SvTEMP(TARG) || PL_sawampersand) |
9d080a66 | 1669 | ? REXEC_COPY_STR : 0; |
f722798b | 1670 | if (SvSCREAM(TARG)) |
22e551b9 | 1671 | r_flags |= REXEC_SCREAM; |
a0d0e21e | 1672 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
3280af22 NIS |
1673 | SAVEINT(PL_multiline); |
1674 | PL_multiline = pm->op_pmflags & PMf_MULTILINE; | |
a0d0e21e LW |
1675 | } |
1676 | orig = m = s; | |
f722798b IZ |
1677 | if (rx->reganch & RE_USE_INTUIT) { |
1678 | s = CALLREG_INTUIT_START(aTHX_ rx, TARG, s, strend, r_flags, NULL); | |
1679 | ||
1680 | if (!s) | |
1681 | goto nope; | |
1682 | /* How to do it in subst? */ | |
1683 | /* if ( (rx->reganch & ROPT_CHECK_ALL) | |
1684 | && !PL_sawampersand | |
1685 | && ((rx->reganch & ROPT_NOSCAN) | |
1686 | || !((rx->reganch & RE_INTUIT_TAIL) | |
1687 | && (r_flags & REXEC_SCREAM)))) | |
1688 | goto yup; | |
1689 | */ | |
a0d0e21e | 1690 | } |
71be2cbc | 1691 | |
1692 | /* only replace once? */ | |
a0d0e21e | 1693 | once = !(rpm->op_pmflags & PMf_GLOBAL); |
71be2cbc | 1694 | |
1695 | /* known replacement string? */ | |
5cd24f17 | 1696 | c = dstr ? SvPV(dstr, clen) : Nullch; |
71be2cbc | 1697 | |
1698 | /* can do inplace substitution? */ | |
22e551b9 | 1699 | if (c && clen <= rx->minlen && (once || !(r_flags & REXEC_COPY_STR)) |
d9f97599 | 1700 | && !(rx->reganch & ROPT_LOOKBEHIND_SEEN)) { |
f722798b IZ |
1701 | if (!CALLREGEXEC(aTHX_ rx, s, strend, orig, 0, TARG, NULL, |
1702 | r_flags | REXEC_CHECKED)) | |
1703 | { | |
8ec5e241 | 1704 | SPAGAIN; |
3280af22 | 1705 | PUSHs(&PL_sv_no); |
71be2cbc | 1706 | LEAVE_SCOPE(oldsave); |
1707 | RETURN; | |
1708 | } | |
1709 | if (force_on_match) { | |
1710 | force_on_match = 0; | |
1711 | s = SvPV_force(TARG, len); | |
1712 | goto force_it; | |
1713 | } | |
71be2cbc | 1714 | d = s; |
3280af22 | 1715 | PL_curpm = pm; |
71be2cbc | 1716 | SvSCREAM_off(TARG); /* disable possible screamer */ |
1717 | if (once) { | |
48c036b1 | 1718 | rxtainted |= RX_MATCH_TAINTED(rx); |
cf93c79d IZ |
1719 | m = orig + rx->startp[0]; |
1720 | d = orig + rx->endp[0]; | |
71be2cbc | 1721 | s = orig; |
1722 | if (m - s > strend - d) { /* faster to shorten from end */ | |
1723 | if (clen) { | |
1724 | Copy(c, m, clen, char); | |
1725 | m += clen; | |
a0d0e21e | 1726 | } |
71be2cbc | 1727 | i = strend - d; |
1728 | if (i > 0) { | |
1729 | Move(d, m, i, char); | |
1730 | m += i; | |
a0d0e21e | 1731 | } |
71be2cbc | 1732 | *m = '\0'; |
1733 | SvCUR_set(TARG, m - s); | |
1734 | } | |
1735 | /*SUPPRESS 560*/ | |
1736 | else if (i = m - s) { /* faster from front */ | |
1737 | d -= clen; | |
1738 | m = d; | |
1739 | sv_chop(TARG, d-i); | |
1740 | s += i; | |
1741 | while (i--) | |
1742 | *--d = *--s; | |
1743 | if (clen) | |
1744 | Copy(c, m, clen, char); | |
1745 | } | |
1746 | else if (clen) { | |
1747 | d -= clen; | |
1748 | sv_chop(TARG, d); | |
1749 | Copy(c, d, clen, char); | |
1750 | } | |
1751 | else { | |
1752 | sv_chop(TARG, d); | |
1753 | } | |
48c036b1 | 1754 | TAINT_IF(rxtainted & 1); |
8ec5e241 | 1755 | SPAGAIN; |
3280af22 | 1756 | PUSHs(&PL_sv_yes); |
71be2cbc | 1757 | } |
1758 | else { | |
71be2cbc | 1759 | do { |
1760 | if (iters++ > maxiters) | |
cea2e8a9 | 1761 | DIE(aTHX_ "Substitution loop"); |
d9f97599 | 1762 | rxtainted |= RX_MATCH_TAINTED(rx); |
cf93c79d | 1763 | m = rx->startp[0] + orig; |
71be2cbc | 1764 | /*SUPPRESS 560*/ |
1765 | if (i = m - s) { | |
1766 | if (s != d) | |
1767 | Move(s, d, i, char); | |
1768 | d += i; | |
a0d0e21e | 1769 | } |
71be2cbc | 1770 | if (clen) { |
1771 | Copy(c, d, clen, char); | |
1772 | d += clen; | |
1773 | } | |
cf93c79d | 1774 | s = rx->endp[0] + orig; |
cea2e8a9 | 1775 | } while (CALLREGEXEC(aTHX_ rx, s, strend, orig, s == m, |
f722798b IZ |
1776 | TARG, NULL, |
1777 | /* don't match same null twice */ | |
1778 | REXEC_NOT_FIRST|REXEC_IGNOREPOS)); | |
71be2cbc | 1779 | if (s != d) { |
1780 | i = strend - s; | |
1781 | SvCUR_set(TARG, d - SvPVX(TARG) + i); | |
1782 | Move(s, d, i+1, char); /* include the NUL */ | |
a0d0e21e | 1783 | } |
48c036b1 | 1784 | TAINT_IF(rxtainted & 1); |
8ec5e241 | 1785 | SPAGAIN; |
71be2cbc | 1786 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
a0d0e21e | 1787 | } |
71be2cbc | 1788 | (void)SvPOK_only(TARG); |
48c036b1 | 1789 | TAINT_IF(rxtainted); |
8ec5e241 NIS |
1790 | if (SvSMAGICAL(TARG)) { |
1791 | PUTBACK; | |
1792 | mg_set(TARG); | |
1793 | SPAGAIN; | |
1794 | } | |
9212bbba | 1795 | SvTAINT(TARG); |
71be2cbc | 1796 | LEAVE_SCOPE(oldsave); |
1797 | RETURN; | |
a0d0e21e | 1798 | } |
71be2cbc | 1799 | |
f722798b IZ |
1800 | if (CALLREGEXEC(aTHX_ rx, s, strend, orig, 0, TARG, NULL, |
1801 | r_flags | REXEC_CHECKED)) | |
1802 | { | |
a0d0e21e LW |
1803 | if (force_on_match) { |
1804 | force_on_match = 0; | |
1805 | s = SvPV_force(TARG, len); | |
1806 | goto force_it; | |
1807 | } | |
48c036b1 | 1808 | rxtainted |= RX_MATCH_TAINTED(rx); |
8ec5e241 | 1809 | dstr = NEWSV(25, len); |
a0d0e21e | 1810 | sv_setpvn(dstr, m, s-m); |
3280af22 | 1811 | PL_curpm = pm; |
a0d0e21e | 1812 | if (!c) { |
c09156bb | 1813 | register PERL_CONTEXT *cx; |
8ec5e241 | 1814 | SPAGAIN; |
a0d0e21e LW |
1815 | PUSHSUBST(cx); |
1816 | RETURNOP(cPMOP->op_pmreplroot); | |
1817 | } | |
cf93c79d | 1818 | r_flags |= REXEC_IGNOREPOS | REXEC_NOT_FIRST; |
a0d0e21e LW |
1819 | do { |
1820 | if (iters++ > maxiters) | |
cea2e8a9 | 1821 | DIE(aTHX_ "Substitution loop"); |
d9f97599 | 1822 | rxtainted |= RX_MATCH_TAINTED(rx); |
cf93c79d | 1823 | if (RX_MATCH_COPIED(rx) && rx->subbeg != orig) { |
a0d0e21e LW |
1824 | m = s; |
1825 | s = orig; | |
cf93c79d | 1826 | orig = rx->subbeg; |
a0d0e21e LW |
1827 | s = orig + (m - s); |
1828 | strend = s + (strend - m); | |
1829 | } | |
cf93c79d | 1830 | m = rx->startp[0] + orig; |
a0d0e21e | 1831 | sv_catpvn(dstr, s, m-s); |
cf93c79d | 1832 | s = rx->endp[0] + orig; |
a0d0e21e LW |
1833 | if (clen) |
1834 | sv_catpvn(dstr, c, clen); | |
1835 | if (once) | |
1836 | break; | |
cea2e8a9 | 1837 | } while (CALLREGEXEC(aTHX_ rx, s, strend, orig, s == m, TARG, NULL, r_flags)); |
a0d0e21e | 1838 | sv_catpvn(dstr, s, strend - s); |
748a9306 | 1839 | |
4633a7c4 | 1840 | (void)SvOOK_off(TARG); |
cb0b1708 | 1841 | Safefree(SvPVX(TARG)); |
748a9306 LW |
1842 | SvPVX(TARG) = SvPVX(dstr); |
1843 | SvCUR_set(TARG, SvCUR(dstr)); | |
1844 | SvLEN_set(TARG, SvLEN(dstr)); | |
1845 | SvPVX(dstr) = 0; | |
1846 | sv_free(dstr); | |
1847 | ||
48c036b1 | 1848 | TAINT_IF(rxtainted & 1); |
f878fbec | 1849 | SPAGAIN; |
48c036b1 GS |
1850 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
1851 | ||
a0d0e21e | 1852 | (void)SvPOK_only(TARG); |
48c036b1 | 1853 | TAINT_IF(rxtainted); |
a0d0e21e | 1854 | SvSETMAGIC(TARG); |
9212bbba | 1855 | SvTAINT(TARG); |
4633a7c4 | 1856 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1857 | RETURN; |
1858 | } | |
5cd24f17 | 1859 | goto ret_no; |
a0d0e21e LW |
1860 | |
1861 | nope: | |
8ec5e241 NIS |
1862 | ret_no: |
1863 | SPAGAIN; | |
3280af22 | 1864 | PUSHs(&PL_sv_no); |
4633a7c4 | 1865 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1866 | RETURN; |
1867 | } | |
1868 | ||
1869 | PP(pp_grepwhile) | |
1870 | { | |
4e35701f | 1871 | djSP; |
a0d0e21e LW |
1872 | |
1873 | if (SvTRUEx(POPs)) | |
3280af22 NIS |
1874 | PL_stack_base[PL_markstack_ptr[-1]++] = PL_stack_base[*PL_markstack_ptr]; |
1875 | ++*PL_markstack_ptr; | |
a0d0e21e LW |
1876 | LEAVE; /* exit inner scope */ |
1877 | ||
1878 | /* All done yet? */ | |
3280af22 | 1879 | if (PL_stack_base + *PL_markstack_ptr > SP) { |
a0d0e21e | 1880 | I32 items; |
54310121 | 1881 | I32 gimme = GIMME_V; |
a0d0e21e LW |
1882 | |
1883 | LEAVE; /* exit outer scope */ | |
1884 | (void)POPMARK; /* pop src */ | |
3280af22 | 1885 | items = --*PL_markstack_ptr - PL_markstack_ptr[-1]; |
a0d0e21e | 1886 | (void)POPMARK; /* pop dst */ |
3280af22 | 1887 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
54310121 | 1888 | if (gimme == G_SCALAR) { |
a0d0e21e LW |
1889 | dTARGET; |
1890 | XPUSHi(items); | |
a0d0e21e | 1891 | } |
54310121 | 1892 | else if (gimme == G_ARRAY) |
1893 | SP += items; | |
a0d0e21e LW |
1894 | RETURN; |
1895 | } | |
1896 | else { | |
1897 | SV *src; | |
1898 | ||
1899 | ENTER; /* enter inner scope */ | |
1d7c1841 | 1900 | SAVEVPTR(PL_curpm); |
a0d0e21e | 1901 | |
3280af22 | 1902 | src = PL_stack_base[*PL_markstack_ptr]; |
a0d0e21e | 1903 | SvTEMP_off(src); |
54b9620d | 1904 | DEFSV = src; |
a0d0e21e LW |
1905 | |
1906 | RETURNOP(cLOGOP->op_other); | |
1907 | } | |
1908 | } | |
1909 | ||
1910 | PP(pp_leavesub) | |
1911 | { | |
4e35701f | 1912 | djSP; |
a0d0e21e LW |
1913 | SV **mark; |
1914 | SV **newsp; | |
1915 | PMOP *newpm; | |
1916 | I32 gimme; | |
c09156bb | 1917 | register PERL_CONTEXT *cx; |
b0d9ce38 | 1918 | SV *sv; |
a0d0e21e LW |
1919 | |
1920 | POPBLOCK(cx,newpm); | |
f86702cc | 1921 | |
a1f49e72 | 1922 | TAINT_NOT; |
a0d0e21e LW |
1923 | if (gimme == G_SCALAR) { |
1924 | MARK = newsp + 1; | |
a29cdaf0 | 1925 | if (MARK <= SP) { |
a8bba7fa | 1926 | if (cx->blk_sub.cv && CvDEPTH(cx->blk_sub.cv) > 1) { |
a29cdaf0 IZ |
1927 | if (SvTEMP(TOPs)) { |
1928 | *MARK = SvREFCNT_inc(TOPs); | |
1929 | FREETMPS; | |
1930 | sv_2mortal(*MARK); | |
cd06dffe GS |
1931 | } |
1932 | else { | |
a29cdaf0 IZ |
1933 | FREETMPS; |
1934 | *MARK = sv_mortalcopy(TOPs); | |
1935 | } | |
cd06dffe GS |
1936 | } |
1937 | else | |
a29cdaf0 | 1938 | *MARK = SvTEMP(TOPs) ? TOPs : sv_mortalcopy(TOPs); |
cd06dffe GS |
1939 | } |
1940 | else { | |
f86702cc | 1941 | MEXTEND(MARK, 0); |
3280af22 | 1942 | *MARK = &PL_sv_undef; |
a0d0e21e LW |
1943 | } |
1944 | SP = MARK; | |
1945 | } | |
54310121 | 1946 | else if (gimme == G_ARRAY) { |
f86702cc | 1947 | for (MARK = newsp + 1; MARK <= SP; MARK++) { |
a1f49e72 | 1948 | if (!SvTEMP(*MARK)) { |
f86702cc | 1949 | *MARK = sv_mortalcopy(*MARK); |
a1f49e72 CS |
1950 | TAINT_NOT; /* Each item is independent */ |
1951 | } | |
f86702cc | 1952 | } |
a0d0e21e | 1953 | } |
f86702cc | 1954 | PUTBACK; |
1955 | ||
b0d9ce38 | 1956 | POPSUB(cx,sv); /* Stack values are safe: release CV and @_ ... */ |
3280af22 | 1957 | PL_curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e LW |
1958 | |
1959 | LEAVE; | |
b0d9ce38 | 1960 | LEAVESUB(sv); |
a0d0e21e LW |
1961 | return pop_return(); |
1962 | } | |
1963 | ||
cd06dffe GS |
1964 | /* This duplicates the above code because the above code must not |
1965 | * get any slower by more conditions */ | |
1966 | PP(pp_leavesublv) | |
1967 | { | |
1968 | djSP; | |
1969 | SV **mark; | |
1970 | SV **newsp; | |
1971 | PMOP *newpm; | |
1972 | I32 gimme; | |
1973 | register PERL_CONTEXT *cx; | |
b0d9ce38 | 1974 | SV *sv; |
cd06dffe GS |
1975 | |
1976 | POPBLOCK(cx,newpm); | |
cd06dffe GS |
1977 | |
1978 | TAINT_NOT; | |
1979 | ||
1980 | if (cx->blk_sub.lval & OPpENTERSUB_INARGS) { | |
1981 | /* We are an argument to a function or grep(). | |
1982 | * This kind of lvalueness was legal before lvalue | |
1983 | * subroutines too, so be backward compatible: | |
1984 | * cannot report errors. */ | |
1985 | ||
1986 | /* Scalar context *is* possible, on the LHS of -> only, | |
1987 | * as in f()->meth(). But this is not an lvalue. */ | |
1988 | if (gimme == G_SCALAR) | |
1989 | goto temporise; | |
1990 | if (gimme == G_ARRAY) { | |
a8bba7fa | 1991 | if (!CvLVALUE(cx->blk_sub.cv)) |
cd06dffe GS |
1992 | goto temporise_array; |
1993 | EXTEND_MORTAL(SP - newsp); | |
1994 | for (mark = newsp + 1; mark <= SP; mark++) { | |
1995 | if (SvTEMP(*mark)) | |
1996 | /* empty */ ; | |
1997 | else if (SvFLAGS(*mark) & (SVs_PADTMP | SVf_READONLY)) | |
1998 | *mark = sv_mortalcopy(*mark); | |
1999 | else { | |
2000 | /* Can be a localized value subject to deletion. */ | |
2001 | PL_tmps_stack[++PL_tmps_ix] = *mark; | |
e1f15930 | 2002 | (void)SvREFCNT_inc(*mark); |
cd06dffe GS |
2003 | } |
2004 | } | |
2005 | } | |
2006 | } | |
2007 | else if (cx->blk_sub.lval) { /* Leave it as it is if we can. */ | |
2008 | /* Here we go for robustness, not for speed, so we change all | |
2009 | * the refcounts so the caller gets a live guy. Cannot set | |
2010 | * TEMP, so sv_2mortal is out of question. */ | |
a8bba7fa | 2011 | if (!CvLVALUE(cx->blk_sub.cv)) { |
b0d9ce38 | 2012 | POPSUB(cx,sv); |
d470f89e | 2013 | PL_curpm = newpm; |
b0d9ce38 GS |
2014 | LEAVE; |
2015 | LEAVESUB(sv); | |
d470f89e GS |
2016 | DIE(aTHX_ "Can't modify non-lvalue subroutine call"); |
2017 | } | |
cd06dffe GS |
2018 | if (gimme == G_SCALAR) { |
2019 | MARK = newsp + 1; | |
2020 | EXTEND_MORTAL(1); | |
2021 | if (MARK == SP) { | |
d470f89e | 2022 | if (SvFLAGS(TOPs) & (SVs_TEMP | SVs_PADTMP | SVf_READONLY)) { |
b0d9ce38 | 2023 | POPSUB(cx,sv); |
d470f89e | 2024 | PL_curpm = newpm; |
b0d9ce38 GS |
2025 | LEAVE; |
2026 | LEAVESUB(sv); | |
d470f89e | 2027 | DIE(aTHX_ "Can't return a %s from lvalue subroutine", |
cd06dffe | 2028 | SvREADONLY(TOPs) ? "readonly value" : "temporary"); |
d470f89e | 2029 | } |
cd06dffe GS |
2030 | else { /* Can be a localized value |
2031 | * subject to deletion. */ | |
2032 | PL_tmps_stack[++PL_tmps_ix] = *mark; | |
e1f15930 | 2033 | (void)SvREFCNT_inc(*mark); |
cd06dffe GS |
2034 | } |
2035 | } | |
d470f89e | 2036 | else { /* Should not happen? */ |
b0d9ce38 | 2037 | POPSUB(cx,sv); |
d470f89e | 2038 | PL_curpm = newpm; |
b0d9ce38 GS |
2039 | LEAVE; |
2040 | LEAVESUB(sv); | |
d470f89e | 2041 | DIE(aTHX_ "%s returned from lvalue subroutine in scalar context", |
cd06dffe | 2042 | (MARK > SP ? "Empty array" : "Array")); |
d470f89e | 2043 | } |
cd06dffe GS |
2044 | SP = MARK; |
2045 | } | |
2046 | else if (gimme == G_ARRAY) { | |
2047 | EXTEND_MORTAL(SP - newsp); | |
2048 | for (mark = newsp + 1; mark <= SP; mark++) { | |
d470f89e GS |
2049 | if (SvFLAGS(*mark) & (SVs_TEMP | SVs_PADTMP | SVf_READONLY)) { |
2050 | /* Might be flattened array after $#array = */ | |
2051 | PUTBACK; | |
b0d9ce38 | 2052 | POPSUB(cx,sv); |
d470f89e | 2053 | PL_curpm = newpm; |
b0d9ce38 GS |
2054 | LEAVE; |
2055 | LEAVESUB(sv); | |
d470f89e | 2056 | DIE(aTHX_ "Can't return %s from lvalue subroutine", |
cd06dffe GS |
2057 | (*mark != &PL_sv_undef) |
2058 | ? (SvREADONLY(TOPs) | |
2059 | ? "a readonly value" : "a temporary") | |
2060 | : "an uninitialized value"); | |
d470f89e | 2061 | } |
cd06dffe GS |
2062 | else { |
2063 | mortalize: | |
2064 | /* Can be a localized value subject to deletion. */ | |
2065 | PL_tmps_stack[++PL_tmps_ix] = *mark; | |
e1f15930 | 2066 | (void)SvREFCNT_inc(*mark); |
cd06dffe GS |
2067 | } |
2068 | } | |
2069 | } | |
2070 | } | |
2071 | else { | |
2072 | if (gimme == G_SCALAR) { | |
2073 | temporise: | |
2074 | MARK = newsp + 1; | |
2075 | if (MARK <= SP) { | |
a8bba7fa | 2076 | if (cx->blk_sub.cv && CvDEPTH(cx->blk_sub.cv) > 1) { |
cd06dffe GS |
2077 | if (SvTEMP(TOPs)) { |
2078 | *MARK = SvREFCNT_inc(TOPs); | |
2079 | FREETMPS; | |
2080 | sv_2mortal(*MARK); | |
2081 | } | |
2082 | else { | |
2083 | FREETMPS; | |
2084 | *MARK = sv_mortalcopy(TOPs); | |
2085 | } | |
2086 | } | |
2087 | else | |
2088 | *MARK = SvTEMP(TOPs) ? TOPs : sv_mortalcopy(TOPs); | |
2089 | } | |
2090 | else { | |
2091 | MEXTEND(MARK, 0); | |
2092 | *MARK = &PL_sv_undef; | |
2093 | } | |
2094 | SP = MARK; | |
2095 | } | |
2096 | else if (gimme == G_ARRAY) { | |
2097 | temporise_array: | |
2098 | for (MARK = newsp + 1; MARK <= SP; MARK++) { | |
2099 | if (!SvTEMP(*MARK)) { | |
2100 | *MARK = sv_mortalcopy(*MARK); | |
2101 | TAINT_NOT; /* Each item is independent */ | |
2102 | } | |
2103 | } | |
2104 | } | |
2105 | } | |
2106 | PUTBACK; | |
2107 | ||
b0d9ce38 | 2108 | POPSUB(cx,sv); /* Stack values are safe: release CV and @_ ... */ |
cd06dffe GS |
2109 | PL_curpm = newpm; /* ... and pop $1 et al */ |
2110 | ||
2111 | LEAVE; | |
b0d9ce38 | 2112 | LEAVESUB(sv); |
cd06dffe GS |
2113 | return pop_return(); |
2114 | } | |
2115 | ||
2116 | ||
76e3520e | 2117 | STATIC CV * |
cea2e8a9 | 2118 | S_get_db_sub(pTHX_ SV **svp, CV *cv) |
3de9ffa1 MB |
2119 | { |
2120 | dTHR; | |
3280af22 | 2121 | SV *dbsv = GvSV(PL_DBsub); |
491527d0 GS |
2122 | |
2123 | if (!PERLDB_SUB_NN) { | |
2124 | GV *gv = CvGV(cv); | |
2125 | ||
2126 | save_item(dbsv); | |
2127 | if ( (CvFLAGS(cv) & (CVf_ANON | CVf_CLONED)) | |
2128 | || strEQ(GvNAME(gv), "END") | |
2129 | || ((GvCV(gv) != cv) && /* Could be imported, and old sub redefined. */ | |
2130 | !( (SvTYPE(*svp) == SVt_PVGV) && (GvCV((GV*)*svp) == cv) | |
2131 | && (gv = (GV*)*svp) ))) { | |
2132 | /* Use GV from the stack as a fallback. */ | |
2133 | /* GV is potentially non-unique, or contain different CV. */ | |
2134 | sv_setsv(dbsv, newRV((SV*)cv)); | |
2135 | } | |
2136 | else { | |
2137 | gv_efullname3(dbsv, gv, Nullch); | |
2138 | } | |
3de9ffa1 MB |
2139 | } |
2140 | else { | |
491527d0 GS |
2141 | SvUPGRADE(dbsv, SVt_PVIV); |
2142 | SvIOK_on(dbsv); | |
2143 | SAVEIV(SvIVX(dbsv)); | |
5bc28da9 | 2144 | SvIVX(dbsv) = PTR2IV(cv); /* Do it the quickest way */ |
3de9ffa1 | 2145 | } |
491527d0 | 2146 | |
3de9ffa1 | 2147 | if (CvXSUB(cv)) |
3280af22 NIS |
2148 | PL_curcopdb = PL_curcop; |
2149 | cv = GvCV(PL_DBsub); | |
3de9ffa1 MB |
2150 | return cv; |
2151 | } | |
2152 | ||
a0d0e21e LW |
2153 | PP(pp_entersub) |
2154 | { | |
4e35701f | 2155 | djSP; dPOPss; |
a0d0e21e LW |
2156 | GV *gv; |
2157 | HV *stash; | |
2158 | register CV *cv; | |
c09156bb | 2159 | register PERL_CONTEXT *cx; |
5d94fbed | 2160 | I32 gimme; |
533c011a | 2161 | bool hasargs = (PL_op->op_flags & OPf_STACKED) != 0; |
a0d0e21e LW |
2162 | |
2163 | if (!sv) | |
cea2e8a9 | 2164 | DIE(aTHX_ "Not a CODE reference"); |
a0d0e21e LW |
2165 | switch (SvTYPE(sv)) { |
2166 | default: | |
2167 | if (!SvROK(sv)) { | |
748a9306 | 2168 | char *sym; |
2d8e6c8d | 2169 | STRLEN n_a; |
748a9306 | 2170 | |
3280af22 | 2171 | if (sv == &PL_sv_yes) { /* unfound import, ignore */ |
fb73857a | 2172 | if (hasargs) |
3280af22 | 2173 | SP = PL_stack_base + POPMARK; |
a0d0e21e | 2174 | RETURN; |
fb73857a | 2175 | } |
15ff848f CS |
2176 | if (SvGMAGICAL(sv)) { |
2177 | mg_get(sv); | |
2178 | sym = SvPOKp(sv) ? SvPVX(sv) : Nullch; | |
2179 | } | |
2180 | else | |
2d8e6c8d | 2181 | sym = SvPV(sv, n_a); |
15ff848f | 2182 | if (!sym) |
cea2e8a9 | 2183 | DIE(aTHX_ PL_no_usym, "a subroutine"); |
533c011a | 2184 | if (PL_op->op_private & HINT_STRICT_REFS) |
cea2e8a9 | 2185 | DIE(aTHX_ PL_no_symref, sym, "a subroutine"); |
864dbfa3 | 2186 | cv = get_cv(sym, TRUE); |
a0d0e21e LW |
2187 | break; |
2188 | } | |
f5284f61 IZ |
2189 | { |
2190 | SV **sp = &sv; /* Used in tryAMAGICunDEREF macro. */ | |
2191 | tryAMAGICunDEREF(to_cv); | |
2192 | } | |
a0d0e21e LW |
2193 | cv = (CV*)SvRV(sv); |
2194 | if (SvTYPE(cv) == SVt_PVCV) | |
2195 | break; | |
2196 | /* FALL THROUGH */ | |
2197 | case SVt_PVHV: | |
2198 | case SVt_PVAV: | |
cea2e8a9 | 2199 | DIE(aTHX_ "Not a CODE reference"); |
a0d0e21e LW |
2200 | case SVt_PVCV: |
2201 | cv = (CV*)sv; | |
2202 | break; | |
2203 | case SVt_PVGV: | |
8ebc5c01 | 2204 | if (!(cv = GvCVu((GV*)sv))) |
f6ec51f7 GS |
2205 | cv = sv_2cv(sv, &stash, &gv, FALSE); |
2206 | if (!cv) { | |
2207 | ENTER; | |
2208 | SAVETMPS; | |
2209 | goto try_autoload; | |
2210 | } | |
2211 | break; | |
a0d0e21e LW |
2212 | } |
2213 | ||
2214 | ENTER; | |
2215 | SAVETMPS; | |
2216 | ||
2217 | retry: | |
a0d0e21e | 2218 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
44a8e56a | 2219 | GV* autogv; |
22239a37 | 2220 | SV* sub_name; |
44a8e56a | 2221 | |
2222 | /* anonymous or undef'd function leaves us no recourse */ | |
2223 | if (CvANON(cv) || !(gv = CvGV(cv))) | |
cea2e8a9 | 2224 | DIE(aTHX_ "Undefined subroutine called"); |
67caa1fe | 2225 | |
44a8e56a | 2226 | /* autoloaded stub? */ |
2227 | if (cv != GvCV(gv)) { | |
2228 | cv = GvCV(gv); | |
a0d0e21e | 2229 | } |
44a8e56a | 2230 | /* should call AUTOLOAD now? */ |
67caa1fe | 2231 | else { |
f6ec51f7 GS |
2232 | try_autoload: |
2233 | if ((autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), | |
2234 | FALSE))) | |
2235 | { | |
2236 | cv = GvCV(autogv); | |
2237 | } | |
2238 | /* sorry */ | |
2239 | else { | |
2240 | sub_name = sv_newmortal(); | |
2241 | gv_efullname3(sub_name, gv, Nullch); | |
cea2e8a9 | 2242 | DIE(aTHX_ "Undefined subroutine &%s called", SvPVX(sub_name)); |
f6ec51f7 | 2243 | } |
67caa1fe GS |
2244 | } |
2245 | if (!cv) | |
cea2e8a9 | 2246 | DIE(aTHX_ "Not a CODE reference"); |
67caa1fe | 2247 | goto retry; |
a0d0e21e LW |
2248 | } |
2249 | ||
54310121 | 2250 | gimme = GIMME_V; |
67caa1fe | 2251 | if ((PL_op->op_private & OPpENTERSUB_DB) && GvCV(PL_DBsub) && !CvNODEBUG(cv)) { |
4f01c5a5 | 2252 | cv = get_db_sub(&sv, cv); |
67caa1fe | 2253 | if (!cv) |
cea2e8a9 | 2254 | DIE(aTHX_ "No DBsub routine"); |
67caa1fe | 2255 | } |
a0d0e21e | 2256 | |
11343788 | 2257 | #ifdef USE_THREADS |
3de9ffa1 MB |
2258 | /* |
2259 | * First we need to check if the sub or method requires locking. | |
458fb581 MB |
2260 | * If so, we gain a lock on the CV, the first argument or the |
2261 | * stash (for static methods), as appropriate. This has to be | |
2262 | * inline because for FAKE_THREADS, COND_WAIT inlines code to | |
2263 | * reschedule by returning a new op. | |
3de9ffa1 | 2264 | */ |
11343788 | 2265 | MUTEX_LOCK(CvMUTEXP(cv)); |
77a005ab MB |
2266 | if (CvFLAGS(cv) & CVf_LOCKED) { |
2267 | MAGIC *mg; | |
2268 | if (CvFLAGS(cv) & CVf_METHOD) { | |
533c011a NIS |
2269 | if (SP > PL_stack_base + TOPMARK) |
2270 | sv = *(PL_stack_base + TOPMARK + 1); | |
77a005ab | 2271 | else { |
13e08037 GS |
2272 | AV *av = (AV*)PL_curpad[0]; |
2273 | if (hasargs || !av || AvFILLp(av) < 0 | |
2274 | || !(sv = AvARRAY(av)[0])) | |
2275 | { | |
2276 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
d470f89e | 2277 | DIE(aTHX_ "no argument for locked method call"); |
13e08037 | 2278 | } |
77a005ab MB |
2279 | } |
2280 | if (SvROK(sv)) | |
2281 | sv = SvRV(sv); | |
458fb581 MB |
2282 | else { |
2283 | STRLEN len; | |
2284 | char *stashname = SvPV(sv, len); | |
2285 | sv = (SV*)gv_stashpvn(stashname, len, TRUE); | |
2286 | } | |
77a005ab MB |
2287 | } |
2288 | else { | |
2289 | sv = (SV*)cv; | |
2290 | } | |
2291 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
2292 | mg = condpair_magic(sv); | |
2293 | MUTEX_LOCK(MgMUTEXP(mg)); | |
2294 | if (MgOWNER(mg) == thr) | |
2295 | MUTEX_UNLOCK(MgMUTEXP(mg)); | |
2296 | else { | |
2297 | while (MgOWNER(mg)) | |
2298 | COND_WAIT(MgOWNERCONDP(mg), MgMUTEXP(mg)); | |
2299 | MgOWNER(mg) = thr; | |
bf49b057 | 2300 | DEBUG_S(PerlIO_printf(Perl_debug_log, "%p: pp_entersub lock %p\n", |
1fd28e87 | 2301 | thr, sv);) |
77a005ab | 2302 | MUTEX_UNLOCK(MgMUTEXP(mg)); |
c76ac1ee | 2303 | SAVEDESTRUCTOR_X(Perl_unlock_condpair, sv); |
11343788 | 2304 | } |
77a005ab | 2305 | MUTEX_LOCK(CvMUTEXP(cv)); |
11343788 | 2306 | } |
3de9ffa1 MB |
2307 | /* |
2308 | * Now we have permission to enter the sub, we must distinguish | |
2309 | * four cases. (0) It's an XSUB (in which case we don't care | |
2310 | * about ownership); (1) it's ours already (and we're recursing); | |
2311 | * (2) it's free (but we may already be using a cached clone); | |
2312 | * (3) another thread owns it. Case (1) is easy: we just use it. | |
2313 | * Case (2) means we look for a clone--if we have one, use it | |
2314 | * otherwise grab ownership of cv. Case (3) means we look for a | |
2315 | * clone (for non-XSUBs) and have to create one if we don't | |
2316 | * already have one. | |
2317 | * Why look for a clone in case (2) when we could just grab | |
2318 | * ownership of cv straight away? Well, we could be recursing, | |
2319 | * i.e. we originally tried to enter cv while another thread | |
2320 | * owned it (hence we used a clone) but it has been freed up | |
2321 | * and we're now recursing into it. It may or may not be "better" | |
2322 | * to use the clone but at least CvDEPTH can be trusted. | |
2323 | */ | |
2324 | if (CvOWNER(cv) == thr || CvXSUB(cv)) | |
2325 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
11343788 | 2326 | else { |
3de9ffa1 MB |
2327 | /* Case (2) or (3) */ |
2328 | SV **svp; | |
2329 | ||
11343788 | 2330 | /* |
3de9ffa1 MB |
2331 | * XXX Might it be better to release CvMUTEXP(cv) while we |
2332 | * do the hv_fetch? We might find someone has pinched it | |
2333 | * when we look again, in which case we would be in case | |
2334 | * (3) instead of (2) so we'd have to clone. Would the fact | |
2335 | * that we released the mutex more quickly make up for this? | |
2336 | */ | |
b099ddc0 | 2337 | if ((svp = hv_fetch(thr->cvcache, (char *)cv, sizeof(cv), FALSE))) |
6ee623d5 | 2338 | { |
3de9ffa1 | 2339 | /* We already have a clone to use */ |
11343788 | 2340 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
3de9ffa1 | 2341 | cv = *(CV**)svp; |
bf49b057 | 2342 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
1fd28e87 MB |
2343 | "entersub: %p already has clone %p:%s\n", |
2344 | thr, cv, SvPEEK((SV*)cv))); | |
3de9ffa1 MB |
2345 | CvOWNER(cv) = thr; |
2346 | SvREFCNT_inc(cv); | |
2347 | if (CvDEPTH(cv) == 0) | |
c76ac1ee | 2348 | SAVEDESTRUCTOR_X(unset_cvowner, (void*) cv); |
3de9ffa1 | 2349 | } |
11343788 | 2350 | else { |
3de9ffa1 MB |
2351 | /* (2) => grab ownership of cv. (3) => make clone */ |
2352 | if (!CvOWNER(cv)) { | |
2353 | CvOWNER(cv) = thr; | |
2354 | SvREFCNT_inc(cv); | |
11343788 | 2355 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
bf49b057 | 2356 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
1fd28e87 MB |
2357 | "entersub: %p grabbing %p:%s in stash %s\n", |
2358 | thr, cv, SvPEEK((SV*)cv), CvSTASH(cv) ? | |
3de9ffa1 | 2359 | HvNAME(CvSTASH(cv)) : "(none)")); |
cd06dffe GS |
2360 | } |
2361 | else { | |
3de9ffa1 MB |
2362 | /* Make a new clone. */ |
2363 | CV *clonecv; | |
2364 | SvREFCNT_inc(cv); /* don't let it vanish from under us */ | |
2365 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
bf49b057 | 2366 | DEBUG_S((PerlIO_printf(Perl_debug_log, |
1fd28e87 MB |
2367 | "entersub: %p cloning %p:%s\n", |
2368 | thr, cv, SvPEEK((SV*)cv)))); | |
3de9ffa1 MB |
2369 | /* |
2370 | * We're creating a new clone so there's no race | |
2371 | * between the original MUTEX_UNLOCK and the | |
2372 | * SvREFCNT_inc since no one will be trying to undef | |
2373 | * it out from underneath us. At least, I don't think | |
2374 | * there's a race... | |
2375 | */ | |
2376 | clonecv = cv_clone(cv); | |
2377 | SvREFCNT_dec(cv); /* finished with this */ | |
199100c8 | 2378 | hv_store(thr->cvcache, (char*)cv, sizeof(cv), (SV*)clonecv,0); |
3de9ffa1 MB |
2379 | CvOWNER(clonecv) = thr; |
2380 | cv = clonecv; | |
11343788 | 2381 | SvREFCNT_inc(cv); |
11343788 | 2382 | } |
8b73bbec | 2383 | DEBUG_S(if (CvDEPTH(cv) != 0) |
bf49b057 | 2384 | PerlIO_printf(Perl_debug_log, "depth %ld != 0\n", |
3de9ffa1 | 2385 | CvDEPTH(cv));); |
c76ac1ee | 2386 | SAVEDESTRUCTOR_X(unset_cvowner, (void*) cv); |
11343788 | 2387 | } |
3de9ffa1 | 2388 | } |
11343788 MB |
2389 | #endif /* USE_THREADS */ |
2390 | ||
a0d0e21e | 2391 | if (CvXSUB(cv)) { |
67caa1fe | 2392 | #ifdef PERL_XSUB_OLDSTYLE |
a0d0e21e | 2393 | if (CvOLDSTYLE(cv)) { |
20ce7b12 | 2394 | I32 (*fp3)(int,int,int); |
a0d0e21e LW |
2395 | dMARK; |
2396 | register I32 items = SP - MARK; | |
67955e0c | 2397 | /* We dont worry to copy from @_. */ |
924508f0 GS |
2398 | while (SP > mark) { |
2399 | SP[1] = SP[0]; | |
2400 | SP--; | |
a0d0e21e | 2401 | } |
3280af22 | 2402 | PL_stack_sp = mark + 1; |
1d7c1841 | 2403 | fp3 = (I32(*)(int,int,int))CvXSUB(cv); |
ecfc5424 | 2404 | items = (*fp3)(CvXSUBANY(cv).any_i32, |
3280af22 | 2405 | MARK - PL_stack_base + 1, |
ecfc5424 | 2406 | items); |
3280af22 | 2407 | PL_stack_sp = PL_stack_base + items; |
a0d0e21e | 2408 | } |
67caa1fe GS |
2409 | else |
2410 | #endif /* PERL_XSUB_OLDSTYLE */ | |
2411 | { | |
748a9306 LW |
2412 | I32 markix = TOPMARK; |
2413 | ||
a0d0e21e | 2414 | PUTBACK; |
67955e0c | 2415 | |
2416 | if (!hasargs) { | |
2417 | /* Need to copy @_ to stack. Alternative may be to | |
2418 | * switch stack to @_, and copy return values | |
2419 | * back. This would allow popping @_ in XSUB, e.g.. XXXX */ | |
6d4ff0d2 MB |
2420 | AV* av; |
2421 | I32 items; | |
2422 | #ifdef USE_THREADS | |
533c011a | 2423 | av = (AV*)PL_curpad[0]; |
6d4ff0d2 | 2424 | #else |
3280af22 | 2425 | av = GvAV(PL_defgv); |
6d4ff0d2 | 2426 | #endif /* USE_THREADS */ |
93965878 | 2427 | items = AvFILLp(av) + 1; /* @_ is not tieable */ |
67955e0c | 2428 | |
2429 | if (items) { | |
2430 | /* Mark is at the end of the stack. */ | |
924508f0 GS |
2431 | EXTEND(SP, items); |
2432 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
2433 | SP += items; | |
67955e0c | 2434 | PUTBACK ; |
2435 | } | |
2436 | } | |
67caa1fe GS |
2437 | /* We assume first XSUB in &DB::sub is the called one. */ |
2438 | if (PL_curcopdb) { | |
1d7c1841 | 2439 | SAVEVPTR(PL_curcop); |
3280af22 NIS |
2440 | PL_curcop = PL_curcopdb; |
2441 | PL_curcopdb = NULL; | |
67955e0c | 2442 | } |
2443 | /* Do we need to open block here? XXXX */ | |
0cb96387 | 2444 | (void)(*CvXSUB(cv))(aTHXo_ cv); |
748a9306 LW |
2445 | |
2446 | /* Enforce some sanity in scalar context. */ | |
3280af22 NIS |
2447 | if (gimme == G_SCALAR && ++markix != PL_stack_sp - PL_stack_base ) { |
2448 | if (markix > PL_stack_sp - PL_stack_base) | |
2449 | *(PL_stack_base + markix) = &PL_sv_undef; | |
748a9306 | 2450 | else |
3280af22 NIS |
2451 | *(PL_stack_base + markix) = *PL_stack_sp; |
2452 | PL_stack_sp = PL_stack_base + markix; | |
748a9306 | 2453 | } |
a0d0e21e LW |
2454 | } |
2455 | LEAVE; | |
2456 | return NORMAL; | |
2457 | } | |
2458 | else { | |
2459 | dMARK; | |
2460 | register I32 items = SP - MARK; | |
a0d0e21e LW |
2461 | AV* padlist = CvPADLIST(cv); |
2462 | SV** svp = AvARRAY(padlist); | |
533c011a | 2463 | push_return(PL_op->op_next); |
a0d0e21e LW |
2464 | PUSHBLOCK(cx, CXt_SUB, MARK); |
2465 | PUSHSUB(cx); | |
2466 | CvDEPTH(cv)++; | |
6b35e009 GS |
2467 | /* XXX This would be a natural place to set C<PL_compcv = cv> so |
2468 | * that eval'' ops within this sub know the correct lexical space. | |
2469 | * Owing the speed considerations, we choose to search for the cv | |
2470 | * in doeval() instead. | |
2471 | */ | |
a0d0e21e LW |
2472 | if (CvDEPTH(cv) < 2) |
2473 | (void)SvREFCNT_inc(cv); | |
2474 | else { /* save temporaries on recursion? */ | |
1d7c1841 | 2475 | PERL_STACK_OVERFLOW_CHECK(); |
93965878 | 2476 | if (CvDEPTH(cv) > AvFILLp(padlist)) { |
a0d0e21e LW |
2477 | AV *av; |
2478 | AV *newpad = newAV(); | |
4aa0a1f7 | 2479 | SV **oldpad = AvARRAY(svp[CvDEPTH(cv)-1]); |
93965878 | 2480 | I32 ix = AvFILLp((AV*)svp[1]); |
1d7c1841 | 2481 | I32 names_fill = AvFILLp((AV*)svp[0]); |
a0d0e21e | 2482 | svp = AvARRAY(svp[0]); |
748a9306 | 2483 | for ( ;ix > 0; ix--) { |
1d7c1841 | 2484 | if (names_fill >= ix && svp[ix] != &PL_sv_undef) { |
748a9306 | 2485 | char *name = SvPVX(svp[ix]); |
5f05dabc | 2486 | if ((SvFLAGS(svp[ix]) & SVf_FAKE) /* outer lexical? */ |
2487 | || *name == '&') /* anonymous code? */ | |
2488 | { | |
2489 | av_store(newpad, ix, SvREFCNT_inc(oldpad[ix])); | |
748a9306 LW |
2490 | } |
2491 | else { /* our own lexical */ | |
2492 | if (*name == '@') | |
2493 | av_store(newpad, ix, sv = (SV*)newAV()); | |
2494 | else if (*name == '%') | |
2495 | av_store(newpad, ix, sv = (SV*)newHV()); | |
2496 | else | |
2497 | av_store(newpad, ix, sv = NEWSV(0,0)); | |
2498 | SvPADMY_on(sv); | |
2499 | } | |
a0d0e21e | 2500 | } |
1d7c1841 GS |
2501 | else if (IS_PADGV(oldpad[ix]) || IS_PADCONST(oldpad[ix])) { |
2502 | av_store(newpad, ix, sv = SvREFCNT_inc(oldpad[ix])); | |
2503 | } | |
a0d0e21e | 2504 | else { |
748a9306 | 2505 | av_store(newpad, ix, sv = NEWSV(0,0)); |
a0d0e21e LW |
2506 | SvPADTMP_on(sv); |
2507 | } | |
2508 | } | |
2509 | av = newAV(); /* will be @_ */ | |
2510 | av_extend(av, 0); | |
2511 | av_store(newpad, 0, (SV*)av); | |
2512 | AvFLAGS(av) = AVf_REIFY; | |
2513 | av_store(padlist, CvDEPTH(cv), (SV*)newpad); | |
93965878 | 2514 | AvFILLp(padlist) = CvDEPTH(cv); |
a0d0e21e LW |
2515 | svp = AvARRAY(padlist); |
2516 | } | |
2517 | } | |
6d4ff0d2 MB |
2518 | #ifdef USE_THREADS |
2519 | if (!hasargs) { | |
533c011a | 2520 | AV* av = (AV*)PL_curpad[0]; |
6d4ff0d2 | 2521 | |
93965878 | 2522 | items = AvFILLp(av) + 1; |
6d4ff0d2 MB |
2523 | if (items) { |
2524 | /* Mark is at the end of the stack. */ | |
924508f0 GS |
2525 | EXTEND(SP, items); |
2526 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
2527 | SP += items; | |
6d4ff0d2 MB |
2528 | PUTBACK ; |
2529 | } | |
2530 | } | |
2531 | #endif /* USE_THREADS */ | |
1d7c1841 | 2532 | SAVEVPTR(PL_curpad); |
3280af22 | 2533 | PL_curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]); |
6d4ff0d2 MB |
2534 | #ifndef USE_THREADS |
2535 | if (hasargs) | |
2536 | #endif /* USE_THREADS */ | |
2537 | { | |
2538 | AV* av; | |
a0d0e21e LW |
2539 | SV** ary; |
2540 | ||
77a005ab | 2541 | #if 0 |
bf49b057 | 2542 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
0f15f207 | 2543 | "%p entersub preparing @_\n", thr)); |
77a005ab | 2544 | #endif |
3280af22 | 2545 | av = (AV*)PL_curpad[0]; |
221373f0 GS |
2546 | if (AvREAL(av)) { |
2547 | /* @_ is normally not REAL--this should only ever | |
2548 | * happen when DB::sub() calls things that modify @_ */ | |
2549 | av_clear(av); | |
2550 | AvREAL_off(av); | |
2551 | AvREIFY_on(av); | |
2552 | } | |
6d4ff0d2 | 2553 | #ifndef USE_THREADS |
3280af22 NIS |
2554 | cx->blk_sub.savearray = GvAV(PL_defgv); |
2555 | GvAV(PL_defgv) = (AV*)SvREFCNT_inc(av); | |
6d4ff0d2 MB |
2556 | #endif /* USE_THREADS */ |
2557 | cx->blk_sub.argarray = av; | |
a0d0e21e LW |
2558 | ++MARK; |
2559 | ||
2560 | if (items > AvMAX(av) + 1) { | |
2561 | ary = AvALLOC(av); | |
2562 | if (AvARRAY(av) != ary) { | |
2563 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); | |
2564 | SvPVX(av) = (char*)ary; | |
2565 | } | |
2566 | if (items > AvMAX(av) + 1) { | |
2567 | AvMAX(av) = items - 1; | |
2568 | Renew(ary,items,SV*); | |
2569 | AvALLOC(av) = ary; | |
2570 | SvPVX(av) = (char*)ary; | |
2571 | } | |
2572 | } | |
2573 | Copy(MARK,AvARRAY(av),items,SV*); | |
93965878 | 2574 | AvFILLp(av) = items - 1; |
a0d0e21e LW |
2575 | |
2576 | while (items--) { | |
2577 | if (*MARK) | |
2578 | SvTEMP_off(*MARK); | |
2579 | MARK++; | |
2580 | } | |
2581 | } | |
4a925ff6 GS |
2582 | /* warning must come *after* we fully set up the context |
2583 | * stuff so that __WARN__ handlers can safely dounwind() | |
2584 | * if they want to | |
2585 | */ | |
2586 | if (CvDEPTH(cv) == 100 && ckWARN(WARN_RECURSION) | |
2587 | && !(PERLDB_SUB && cv == GvCV(PL_DBsub))) | |
2588 | sub_crush_depth(cv); | |
77a005ab | 2589 | #if 0 |
bf49b057 | 2590 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
0f15f207 | 2591 | "%p entersub returning %p\n", thr, CvSTART(cv))); |
77a005ab | 2592 | #endif |
a0d0e21e LW |
2593 | RETURNOP(CvSTART(cv)); |
2594 | } | |
2595 | } | |
2596 | ||
44a8e56a | 2597 | void |
864dbfa3 | 2598 | Perl_sub_crush_depth(pTHX_ CV *cv) |
44a8e56a | 2599 | { |
2600 | if (CvANON(cv)) | |
cea2e8a9 | 2601 | Perl_warner(aTHX_ WARN_RECURSION, "Deep recursion on anonymous subroutine"); |
44a8e56a | 2602 | else { |
2603 | SV* tmpstr = sv_newmortal(); | |
2604 | gv_efullname3(tmpstr, CvGV(cv), Nullch); | |
cea2e8a9 | 2605 | Perl_warner(aTHX_ WARN_RECURSION, "Deep recursion on subroutine \"%s\"", |
599cee73 | 2606 | SvPVX(tmpstr)); |
44a8e56a | 2607 | } |
2608 | } | |
2609 | ||
a0d0e21e LW |
2610 | PP(pp_aelem) |
2611 | { | |
4e35701f | 2612 | djSP; |
a0d0e21e | 2613 | SV** svp; |
748a9306 | 2614 | I32 elem = POPi; |
68dc0745 | 2615 | AV* av = (AV*)POPs; |
533c011a NIS |
2616 | U32 lval = PL_op->op_flags & OPf_MOD; |
2617 | U32 defer = (PL_op->op_private & OPpLVAL_DEFER) && (elem > AvFILL(av)); | |
be6c24e0 | 2618 | SV *sv; |
a0d0e21e | 2619 | |
748a9306 | 2620 | if (elem > 0) |
3280af22 | 2621 | elem -= PL_curcop->cop_arybase; |
a0d0e21e LW |
2622 | if (SvTYPE(av) != SVt_PVAV) |
2623 | RETPUSHUNDEF; | |
68dc0745 | 2624 | svp = av_fetch(av, elem, lval && !defer); |
a0d0e21e | 2625 | if (lval) { |
3280af22 | 2626 | if (!svp || *svp == &PL_sv_undef) { |
68dc0745 | 2627 | SV* lv; |
2628 | if (!defer) | |
cea2e8a9 | 2629 | DIE(aTHX_ PL_no_aelem, elem); |
68dc0745 | 2630 | lv = sv_newmortal(); |
2631 | sv_upgrade(lv, SVt_PVLV); | |
2632 | LvTYPE(lv) = 'y'; | |
2633 | sv_magic(lv, Nullsv, 'y', Nullch, 0); | |
2634 | LvTARG(lv) = SvREFCNT_inc(av); | |
2635 | LvTARGOFF(lv) = elem; | |
2636 | LvTARGLEN(lv) = 1; | |
2637 | PUSHs(lv); | |
2638 | RETURN; | |
2639 | } | |
533c011a | 2640 | if (PL_op->op_private & OPpLVAL_INTRO) |
161b7d16 | 2641 | save_aelem(av, elem, svp); |
533c011a NIS |
2642 | else if (PL_op->op_private & OPpDEREF) |
2643 | vivify_ref(*svp, PL_op->op_private & OPpDEREF); | |
a0d0e21e | 2644 | } |
3280af22 | 2645 | sv = (svp ? *svp : &PL_sv_undef); |
be6c24e0 GS |
2646 | if (!lval && SvGMAGICAL(sv)) /* see note in pp_helem() */ |
2647 | sv = sv_mortalcopy(sv); | |
2648 | PUSHs(sv); | |
a0d0e21e LW |
2649 | RETURN; |
2650 | } | |
2651 | ||
02a9e968 | 2652 | void |
864dbfa3 | 2653 | Perl_vivify_ref(pTHX_ SV *sv, U32 to_what) |
02a9e968 CS |
2654 | { |
2655 | if (SvGMAGICAL(sv)) | |
2656 | mg_get(sv); | |
2657 | if (!SvOK(sv)) { | |
2658 | if (SvREADONLY(sv)) | |
cea2e8a9 | 2659 | Perl_croak(aTHX_ PL_no_modify); |
5f05dabc | 2660 | if (SvTYPE(sv) < SVt_RV) |
2661 | sv_upgrade(sv, SVt_RV); | |
2662 | else if (SvTYPE(sv) >= SVt_PV) { | |
2663 | (void)SvOOK_off(sv); | |
2664 | Safefree(SvPVX(sv)); | |
2665 | SvLEN(sv) = SvCUR(sv) = 0; | |
2666 | } | |
68dc0745 | 2667 | switch (to_what) { |
5f05dabc | 2668 | case OPpDEREF_SV: |
8c52afec | 2669 | SvRV(sv) = NEWSV(355,0); |
5f05dabc | 2670 | break; |
2671 | case OPpDEREF_AV: | |
2672 | SvRV(sv) = (SV*)newAV(); | |
2673 | break; | |
2674 | case OPpDEREF_HV: | |
2675 | SvRV(sv) = (SV*)newHV(); | |
2676 | break; | |
2677 | } | |
02a9e968 CS |
2678 | SvROK_on(sv); |
2679 | SvSETMAGIC(sv); | |
2680 | } | |
2681 | } | |
2682 | ||
a0d0e21e LW |
2683 | PP(pp_method) |
2684 | { | |
4e35701f | 2685 | djSP; |
f5d5a27c CS |
2686 | SV* sv = TOPs; |
2687 | ||
2688 | if (SvROK(sv)) { | |
eda383f2 | 2689 | SV* rsv = SvRV(sv); |
f5d5a27c CS |
2690 | if (SvTYPE(rsv) == SVt_PVCV) { |
2691 | SETs(rsv); | |
2692 | RETURN; | |
2693 | } | |
2694 | } | |
2695 | ||
2696 | SETs(method_common(sv, Null(U32*))); | |
2697 | RETURN; | |
2698 | } | |
2699 | ||
2700 | PP(pp_method_named) | |
2701 | { | |
2702 | djSP; | |
2703 | SV* sv = cSVOP->op_sv; | |
2704 | U32 hash = SvUVX(sv); | |
2705 | ||
2706 | XPUSHs(method_common(sv, &hash)); | |
2707 | RETURN; | |
2708 | } | |
2709 | ||
2710 | STATIC SV * | |
2711 | S_method_common(pTHX_ SV* meth, U32* hashp) | |
2712 | { | |
2713 | djSP; | |
a0d0e21e LW |
2714 | SV* sv; |
2715 | SV* ob; | |
2716 | GV* gv; | |
56304f61 CS |
2717 | HV* stash; |
2718 | char* name; | |
f5d5a27c | 2719 | STRLEN namelen; |
ac91690f CS |
2720 | char* packname; |
2721 | STRLEN packlen; | |
a0d0e21e | 2722 | |
f5d5a27c | 2723 | name = SvPV(meth, namelen); |
3280af22 | 2724 | sv = *(PL_stack_base + TOPMARK + 1); |
f5d5a27c | 2725 | |
16d20bd9 AD |
2726 | if (SvGMAGICAL(sv)) |
2727 | mg_get(sv); | |
a0d0e21e | 2728 | if (SvROK(sv)) |
16d20bd9 | 2729 | ob = (SV*)SvRV(sv); |
a0d0e21e LW |
2730 | else { |
2731 | GV* iogv; | |
a0d0e21e | 2732 | |
56304f61 | 2733 | packname = Nullch; |
a0d0e21e | 2734 | if (!SvOK(sv) || |
56304f61 | 2735 | !(packname = SvPV(sv, packlen)) || |
a0d0e21e LW |
2736 | !(iogv = gv_fetchpv(packname, FALSE, SVt_PVIO)) || |
2737 | !(ob=(SV*)GvIO(iogv))) | |
2738 | { | |
834a4ddd LW |
2739 | if (!packname || |
2740 | ((*(U8*)packname >= 0xc0 && IN_UTF8) | |
b86a2fa7 | 2741 | ? !isIDFIRST_utf8((U8*)packname) |
834a4ddd LW |
2742 | : !isIDFIRST(*packname) |
2743 | )) | |
2744 | { | |
f5d5a27c CS |
2745 | Perl_croak(aTHX_ "Can't call method \"%s\" %s", name, |
2746 | SvOK(sv) ? "without a package or object reference" | |
2747 | : "on an undefined value"); | |
834a4ddd | 2748 | } |
56304f61 | 2749 | stash = gv_stashpvn(packname, packlen, TRUE); |
ac91690f | 2750 | goto fetch; |
a0d0e21e | 2751 | } |
3280af22 | 2752 | *(PL_stack_base + TOPMARK + 1) = sv_2mortal(newRV((SV*)iogv)); |
a0d0e21e LW |
2753 | } |
2754 | ||
ac91690f | 2755 | if (!ob || !SvOBJECT(ob)) |
f5d5a27c CS |
2756 | Perl_croak(aTHX_ "Can't call method \"%s\" on unblessed reference", |
2757 | name); | |
a0d0e21e | 2758 | |
56304f61 | 2759 | stash = SvSTASH(ob); |
a0d0e21e | 2760 | |
ac91690f | 2761 | fetch: |
f5d5a27c CS |
2762 | /* shortcut for simple names */ |
2763 | if (hashp) { | |
2764 | HE* he = hv_fetch_ent(stash, meth, 0, *hashp); | |
2765 | if (he) { | |
2766 | gv = (GV*)HeVAL(he); | |
2767 | if (isGV(gv) && GvCV(gv) && | |
2768 | (!GvCVGEN(gv) || GvCVGEN(gv) == PL_sub_generation)) | |
2769 | return (SV*)GvCV(gv); | |
2770 | } | |
2771 | } | |
2772 | ||
ac91690f | 2773 | gv = gv_fetchmethod(stash, name); |
56304f61 CS |
2774 | if (!gv) { |
2775 | char* leaf = name; | |
2776 | char* sep = Nullch; | |
2777 | char* p; | |
2778 | ||
2779 | for (p = name; *p; p++) { | |
2780 | if (*p == '\'') | |
2781 | sep = p, leaf = p + 1; | |
2782 | else if (*p == ':' && *(p + 1) == ':') | |
2783 | sep = p, leaf = p + 2; | |
2784 | } | |
2785 | if (!sep || ((sep - name) == 5 && strnEQ(name, "SUPER", 5))) { | |
1d7c1841 | 2786 | packname = sep ? CopSTASHPV(PL_curcop) : HvNAME(stash); |
56304f61 CS |
2787 | packlen = strlen(packname); |
2788 | } | |
2789 | else { | |
2790 | packname = name; | |
2791 | packlen = sep - name; | |
2792 | } | |
f5d5a27c CS |
2793 | Perl_croak(aTHX_ |
2794 | "Can't locate object method \"%s\" via package \"%s\"", | |
2795 | leaf, packname); | |
56304f61 | 2796 | } |
f5d5a27c | 2797 | return isGV(gv) ? (SV*)GvCV(gv) : (SV*)gv; |
a0d0e21e | 2798 | } |
22239a37 | 2799 | |
51371543 GS |
2800 | #ifdef USE_THREADS |
2801 | static void | |
2802 | unset_cvowner(pTHXo_ void *cvarg) | |
2803 | { | |
2804 | register CV* cv = (CV *) cvarg; | |
2805 | #ifdef DEBUGGING | |
2806 | dTHR; | |
2807 | #endif /* DEBUGGING */ | |
2808 | ||
bf49b057 | 2809 | DEBUG_S((PerlIO_printf(Perl_debug_log, "%p unsetting CvOWNER of %p:%s\n", |
51371543 GS |
2810 | thr, cv, SvPEEK((SV*)cv)))); |
2811 | MUTEX_LOCK(CvMUTEXP(cv)); | |
2812 | DEBUG_S(if (CvDEPTH(cv) != 0) | |
bf49b057 | 2813 | PerlIO_printf(Perl_debug_log, "depth %ld != 0\n", |
51371543 GS |
2814 | CvDEPTH(cv));); |
2815 | assert(thr == CvOWNER(cv)); | |
2816 | CvOWNER(cv) = 0; | |
2817 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
2818 | SvREFCNT_dec(cv); | |
2819 | } | |
2820 | #endif /* USE_THREADS */ |