Commit | Line | Data |
a0d0e21e |
1 | /* pp_hot.c |
2 | * |
3818b22b |
3 | * Copyright (c) 1991-2000, Larry Wall |
a0d0e21e |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public |
6 | * License or the Artistic License, as specified in the README file. |
7 | * |
8 | */ |
9 | |
10 | /* |
11 | * Then he heard Merry change the note, and up went the Horn-cry of Buckland, |
12 | * shaking the air. |
13 | * |
14 | * Awake! Awake! Fear, Fire, Foes! Awake! |
15 | * Fire, Foes! Awake! |
16 | */ |
17 | |
18 | #include "EXTERN.h" |
864dbfa3 |
19 | #define PERL_IN_PP_HOT_C |
a0d0e21e |
20 | #include "perl.h" |
21 | |
8ac85365 |
22 | #ifdef I_UNISTD |
23 | #include <unistd.h> |
24 | #endif |
a0ed51b3 |
25 | |
a0d0e21e |
26 | /* Hot code. */ |
27 | |
11343788 |
28 | #ifdef USE_THREADS |
51371543 |
29 | static void unset_cvowner(pTHXo_ void *cvarg); |
11343788 |
30 | #endif /* USE_THREADS */ |
31 | |
a0d0e21e |
32 | PP(pp_const) |
33 | { |
4e35701f |
34 | djSP; |
1d7c1841 |
35 | XPUSHs(cSVOP_sv); |
a0d0e21e |
36 | RETURN; |
37 | } |
38 | |
39 | PP(pp_nextstate) |
40 | { |
533c011a |
41 | PL_curcop = (COP*)PL_op; |
a0d0e21e |
42 | TAINT_NOT; /* Each statement is presumed innocent */ |
3280af22 |
43 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e |
44 | FREETMPS; |
45 | return NORMAL; |
46 | } |
47 | |
48 | PP(pp_gvsv) |
49 | { |
4e35701f |
50 | djSP; |
924508f0 |
51 | EXTEND(SP,1); |
533c011a |
52 | if (PL_op->op_private & OPpLVAL_INTRO) |
1d7c1841 |
53 | PUSHs(save_scalar(cGVOP_gv)); |
a0d0e21e |
54 | else |
1d7c1841 |
55 | PUSHs(GvSV(cGVOP_gv)); |
a0d0e21e |
56 | RETURN; |
57 | } |
58 | |
59 | PP(pp_null) |
60 | { |
61 | return NORMAL; |
62 | } |
63 | |
7399586d |
64 | PP(pp_setstate) |
65 | { |
66 | PL_curcop = (COP*)PL_op; |
67 | return NORMAL; |
68 | } |
69 | |
a0d0e21e |
70 | PP(pp_pushmark) |
71 | { |
3280af22 |
72 | PUSHMARK(PL_stack_sp); |
a0d0e21e |
73 | return NORMAL; |
74 | } |
75 | |
76 | PP(pp_stringify) |
77 | { |
4e35701f |
78 | djSP; dTARGET; |
a0d0e21e |
79 | STRLEN len; |
80 | char *s; |
81 | s = SvPV(TOPs,len); |
82 | sv_setpvn(TARG,s,len); |
234a4bc6 |
83 | if (SvUTF8(TOPs) && !IN_BYTE) |
84 | SvUTF8_on(TARG); |
a0d0e21e |
85 | SETTARG; |
86 | RETURN; |
87 | } |
88 | |
89 | PP(pp_gv) |
90 | { |
4e35701f |
91 | djSP; |
1d7c1841 |
92 | XPUSHs((SV*)cGVOP_gv); |
a0d0e21e |
93 | RETURN; |
94 | } |
95 | |
96 | PP(pp_and) |
97 | { |
4e35701f |
98 | djSP; |
a0d0e21e |
99 | if (!SvTRUE(TOPs)) |
100 | RETURN; |
101 | else { |
102 | --SP; |
103 | RETURNOP(cLOGOP->op_other); |
104 | } |
105 | } |
106 | |
107 | PP(pp_sassign) |
108 | { |
4e35701f |
109 | djSP; dPOPTOPssrl; |
748a9306 |
110 | |
533c011a |
111 | if (PL_op->op_private & OPpASSIGN_BACKWARDS) { |
a0d0e21e |
112 | SV *temp; |
113 | temp = left; left = right; right = temp; |
114 | } |
3280af22 |
115 | if (PL_tainting && PL_tainted && !SvTAINTED(left)) |
a0d0e21e |
116 | TAINT_NOT; |
54310121 |
117 | SvSetMagicSV(right, left); |
a0d0e21e |
118 | SETs(right); |
119 | RETURN; |
120 | } |
121 | |
122 | PP(pp_cond_expr) |
123 | { |
4e35701f |
124 | djSP; |
a0d0e21e |
125 | if (SvTRUEx(POPs)) |
1a67a97c |
126 | RETURNOP(cLOGOP->op_other); |
a0d0e21e |
127 | else |
1a67a97c |
128 | RETURNOP(cLOGOP->op_next); |
a0d0e21e |
129 | } |
130 | |
131 | PP(pp_unstack) |
132 | { |
133 | I32 oldsave; |
134 | TAINT_NOT; /* Each statement is presumed innocent */ |
3280af22 |
135 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e |
136 | FREETMPS; |
3280af22 |
137 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e |
138 | LEAVE_SCOPE(oldsave); |
139 | return NORMAL; |
140 | } |
141 | |
a0d0e21e |
142 | PP(pp_concat) |
143 | { |
4e35701f |
144 | djSP; dATARGET; tryAMAGICbin(concat,opASSIGN); |
748a9306 |
145 | { |
146 | dPOPTOPssrl; |
a0d0e21e |
147 | STRLEN len; |
148 | char *s; |
e84ff256 |
149 | bool left_utf = DO_UTF8(left); |
150 | bool right_utf = DO_UTF8(right); |
69b47968 |
151 | |
a0d0e21e |
152 | if (TARG != left) { |
e84ff256 |
153 | if (right_utf && !left_utf) |
154 | sv_utf8_upgrade(left); |
a0d0e21e |
155 | s = SvPV(left,len); |
e84ff256 |
156 | SvUTF8_off(TARG); |
69b47968 |
157 | if (TARG == right) { |
e84ff256 |
158 | if (left_utf && !right_utf) |
159 | sv_utf8_upgrade(right); |
69b47968 |
160 | sv_insert(TARG, 0, 0, s, len); |
e84ff256 |
161 | if (left_utf || right_utf) |
162 | SvUTF8_on(TARG); |
69b47968 |
163 | SETs(TARG); |
164 | RETURN; |
165 | } |
a0d0e21e |
166 | sv_setpvn(TARG,s,len); |
167 | } |
e84ff256 |
168 | else if (SvGMAGICAL(TARG)) { |
c07a80fd |
169 | mg_get(TARG); |
e84ff256 |
170 | if (right_utf && !left_utf) |
171 | sv_utf8_upgrade(left); |
172 | } |
7a4c00b4 |
173 | else if (!SvOK(TARG) && SvTYPE(TARG) <= SVt_PVMG) { |
748a9306 |
174 | sv_setpv(TARG, ""); /* Suppress warning. */ |
7a4c00b4 |
175 | s = SvPV_force(TARG, len); |
4633a7c4 |
176 | } |
e84ff256 |
177 | if (left_utf && !right_utf) |
178 | sv_utf8_upgrade(right); |
a0d0e21e |
179 | s = SvPV(right,len); |
5bc28da9 |
180 | if (SvOK(TARG)) { |
181 | #if defined(PERL_Y2KWARN) |
e476b1b5 |
182 | if ((SvIOK(right) || SvNOK(right)) && ckWARN(WARN_Y2K)) { |
5bc28da9 |
183 | STRLEN n; |
184 | char *s = SvPV(TARG,n); |
185 | if (n >= 2 && s[n-2] == '1' && s[n-1] == '9' |
186 | && (n == 2 || !isDIGIT(s[n-3]))) |
187 | { |
e476b1b5 |
188 | Perl_warner(aTHX_ WARN_Y2K, "Possible Y2K bug: %s", |
5bc28da9 |
189 | "about to append an integer to '19'"); |
190 | } |
191 | } |
192 | #endif |
68dc0745 |
193 | sv_catpvn(TARG,s,len); |
5bc28da9 |
194 | } |
68dc0745 |
195 | else |
196 | sv_setpvn(TARG,s,len); /* suppress warning */ |
e84ff256 |
197 | if (left_utf || right_utf) |
198 | SvUTF8_on(TARG); |
a0d0e21e |
199 | SETTARG; |
200 | RETURN; |
748a9306 |
201 | } |
a0d0e21e |
202 | } |
203 | |
204 | PP(pp_padsv) |
205 | { |
4e35701f |
206 | djSP; dTARGET; |
a0d0e21e |
207 | XPUSHs(TARG); |
533c011a |
208 | if (PL_op->op_flags & OPf_MOD) { |
209 | if (PL_op->op_private & OPpLVAL_INTRO) |
210 | SAVECLEARSV(PL_curpad[PL_op->op_targ]); |
211 | else if (PL_op->op_private & OPpDEREF) { |
8ec5e241 |
212 | PUTBACK; |
533c011a |
213 | vivify_ref(PL_curpad[PL_op->op_targ], PL_op->op_private & OPpDEREF); |
8ec5e241 |
214 | SPAGAIN; |
215 | } |
4633a7c4 |
216 | } |
a0d0e21e |
217 | RETURN; |
218 | } |
219 | |
220 | PP(pp_readline) |
221 | { |
f5284f61 |
222 | tryAMAGICunTARGET(iter, 0); |
3280af22 |
223 | PL_last_in_gv = (GV*)(*PL_stack_sp--); |
8efb3254 |
224 | if (SvTYPE(PL_last_in_gv) != SVt_PVGV) { |
225 | if (SvROK(PL_last_in_gv) && SvTYPE(SvRV(PL_last_in_gv)) == SVt_PVGV) |
f5284f61 |
226 | PL_last_in_gv = (GV*)SvRV(PL_last_in_gv); |
8efb3254 |
227 | else { |
f5284f61 |
228 | dSP; |
229 | XPUSHs((SV*)PL_last_in_gv); |
230 | PUTBACK; |
cea2e8a9 |
231 | pp_rv2gv(); |
f5284f61 |
232 | PL_last_in_gv = (GV*)(*PL_stack_sp--); |
f5284f61 |
233 | } |
234 | } |
a0d0e21e |
235 | return do_readline(); |
236 | } |
237 | |
238 | PP(pp_eq) |
239 | { |
4e35701f |
240 | djSP; tryAMAGICbinSET(eq,0); |
a0d0e21e |
241 | { |
242 | dPOPnv; |
54310121 |
243 | SETs(boolSV(TOPn == value)); |
a0d0e21e |
244 | RETURN; |
245 | } |
246 | } |
247 | |
248 | PP(pp_preinc) |
249 | { |
4e35701f |
250 | djSP; |
68dc0745 |
251 | if (SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV) |
d470f89e |
252 | DIE(aTHX_ PL_no_modify); |
25da4f38 |
253 | if (SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) && |
55497cff |
254 | SvIVX(TOPs) != IV_MAX) |
255 | { |
748a9306 |
256 | ++SvIVX(TOPs); |
55497cff |
257 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
748a9306 |
258 | } |
259 | else |
260 | sv_inc(TOPs); |
a0d0e21e |
261 | SvSETMAGIC(TOPs); |
262 | return NORMAL; |
263 | } |
264 | |
265 | PP(pp_or) |
266 | { |
4e35701f |
267 | djSP; |
a0d0e21e |
268 | if (SvTRUE(TOPs)) |
269 | RETURN; |
270 | else { |
271 | --SP; |
272 | RETURNOP(cLOGOP->op_other); |
273 | } |
274 | } |
275 | |
276 | PP(pp_add) |
277 | { |
4e35701f |
278 | djSP; dATARGET; tryAMAGICbin(add,opASSIGN); |
a0d0e21e |
279 | { |
7a4c00b4 |
280 | dPOPTOPnnrl_ul; |
a0d0e21e |
281 | SETn( left + right ); |
282 | RETURN; |
283 | } |
284 | } |
285 | |
286 | PP(pp_aelemfast) |
287 | { |
4e35701f |
288 | djSP; |
1d7c1841 |
289 | AV *av = GvAV(cGVOP_gv); |
533c011a |
290 | U32 lval = PL_op->op_flags & OPf_MOD; |
291 | SV** svp = av_fetch(av, PL_op->op_private, lval); |
3280af22 |
292 | SV *sv = (svp ? *svp : &PL_sv_undef); |
6ff81951 |
293 | EXTEND(SP, 1); |
be6c24e0 |
294 | if (!lval && SvGMAGICAL(sv)) /* see note in pp_helem() */ |
295 | sv = sv_mortalcopy(sv); |
296 | PUSHs(sv); |
a0d0e21e |
297 | RETURN; |
298 | } |
299 | |
300 | PP(pp_join) |
301 | { |
4e35701f |
302 | djSP; dMARK; dTARGET; |
a0d0e21e |
303 | MARK++; |
304 | do_join(TARG, *MARK, MARK, SP); |
305 | SP = MARK; |
306 | SETs(TARG); |
307 | RETURN; |
308 | } |
309 | |
310 | PP(pp_pushre) |
311 | { |
4e35701f |
312 | djSP; |
44a8e56a |
313 | #ifdef DEBUGGING |
314 | /* |
315 | * We ass_u_me that LvTARGOFF() comes first, and that two STRLENs |
316 | * will be enough to hold an OP*. |
317 | */ |
318 | SV* sv = sv_newmortal(); |
319 | sv_upgrade(sv, SVt_PVLV); |
320 | LvTYPE(sv) = '/'; |
533c011a |
321 | Copy(&PL_op, &LvTARGOFF(sv), 1, OP*); |
44a8e56a |
322 | XPUSHs(sv); |
323 | #else |
6b88bc9c |
324 | XPUSHs((SV*)PL_op); |
44a8e56a |
325 | #endif |
a0d0e21e |
326 | RETURN; |
327 | } |
328 | |
329 | /* Oversized hot code. */ |
330 | |
331 | PP(pp_print) |
332 | { |
4e35701f |
333 | djSP; dMARK; dORIGMARK; |
a0d0e21e |
334 | GV *gv; |
335 | IO *io; |
760ac839 |
336 | register PerlIO *fp; |
236988e4 |
337 | MAGIC *mg; |
2d8e6c8d |
338 | STRLEN n_a; |
a0d0e21e |
339 | |
533c011a |
340 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e |
341 | gv = (GV*)*++MARK; |
342 | else |
3280af22 |
343 | gv = PL_defoutgv; |
155aba94 |
344 | if ((mg = SvTIED_mg((SV*)gv, 'q'))) { |
68dc0745 |
345 | if (MARK == ORIGMARK) { |
a60c0954 |
346 | /* If using default handle then we need to make space to |
347 | * pass object as 1st arg, so move other args up ... |
348 | */ |
4352c267 |
349 | MEXTEND(SP, 1); |
68dc0745 |
350 | ++MARK; |
351 | Move(MARK, MARK + 1, (SP - MARK) + 1, SV*); |
352 | ++SP; |
353 | } |
354 | PUSHMARK(MARK - 1); |
33c27489 |
355 | *MARK = SvTIED_obj((SV*)gv, mg); |
68dc0745 |
356 | PUTBACK; |
236988e4 |
357 | ENTER; |
864dbfa3 |
358 | call_method("PRINT", G_SCALAR); |
236988e4 |
359 | LEAVE; |
360 | SPAGAIN; |
68dc0745 |
361 | MARK = ORIGMARK + 1; |
362 | *MARK = *SP; |
363 | SP = MARK; |
236988e4 |
364 | RETURN; |
365 | } |
a0d0e21e |
366 | if (!(io = GvIO(gv))) { |
599cee73 |
367 | if (ckWARN(WARN_UNOPENED)) { |
748a9306 |
368 | SV* sv = sv_newmortal(); |
af8c498a |
369 | gv_efullname3(sv, gv, Nullch); |
370 | Perl_warner(aTHX_ WARN_UNOPENED, "Filehandle %s never opened", |
371 | SvPV(sv,n_a)); |
748a9306 |
372 | } |
748a9306 |
373 | SETERRNO(EBADF,RMS$_IFI); |
a0d0e21e |
374 | goto just_say_no; |
375 | } |
376 | else if (!(fp = IoOFP(io))) { |
599cee73 |
377 | if (ckWARN2(WARN_CLOSED, WARN_IO)) { |
69282e91 |
378 | if (IoIFP(io)) { |
379 | SV* sv = sv_newmortal(); |
380 | gv_efullname3(sv, gv, Nullch); |
af8c498a |
381 | Perl_warner(aTHX_ WARN_IO, |
382 | "Filehandle %s opened only for input", |
383 | SvPV(sv,n_a)); |
69282e91 |
384 | } |
599cee73 |
385 | else if (ckWARN(WARN_CLOSED)) |
69282e91 |
386 | report_closed_fh(gv, io, "print", "filehandle"); |
a0d0e21e |
387 | } |
748a9306 |
388 | SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI); |
a0d0e21e |
389 | goto just_say_no; |
390 | } |
391 | else { |
392 | MARK++; |
3280af22 |
393 | if (PL_ofslen) { |
a0d0e21e |
394 | while (MARK <= SP) { |
395 | if (!do_print(*MARK, fp)) |
396 | break; |
397 | MARK++; |
398 | if (MARK <= SP) { |
3280af22 |
399 | if (PerlIO_write(fp, PL_ofs, PL_ofslen) == 0 || PerlIO_error(fp)) { |
a0d0e21e |
400 | MARK--; |
401 | break; |
402 | } |
403 | } |
404 | } |
405 | } |
406 | else { |
407 | while (MARK <= SP) { |
408 | if (!do_print(*MARK, fp)) |
409 | break; |
410 | MARK++; |
411 | } |
412 | } |
413 | if (MARK <= SP) |
414 | goto just_say_no; |
415 | else { |
3280af22 |
416 | if (PL_orslen) |
417 | if (PerlIO_write(fp, PL_ors, PL_orslen) == 0 || PerlIO_error(fp)) |
a0d0e21e |
418 | goto just_say_no; |
419 | |
420 | if (IoFLAGS(io) & IOf_FLUSH) |
760ac839 |
421 | if (PerlIO_flush(fp) == EOF) |
a0d0e21e |
422 | goto just_say_no; |
423 | } |
424 | } |
425 | SP = ORIGMARK; |
3280af22 |
426 | PUSHs(&PL_sv_yes); |
a0d0e21e |
427 | RETURN; |
428 | |
429 | just_say_no: |
430 | SP = ORIGMARK; |
3280af22 |
431 | PUSHs(&PL_sv_undef); |
a0d0e21e |
432 | RETURN; |
433 | } |
434 | |
435 | PP(pp_rv2av) |
436 | { |
f5284f61 |
437 | djSP; dTOPss; |
a0d0e21e |
438 | AV *av; |
439 | |
440 | if (SvROK(sv)) { |
441 | wasref: |
f5284f61 |
442 | tryAMAGICunDEREF(to_av); |
443 | |
a0d0e21e |
444 | av = (AV*)SvRV(sv); |
445 | if (SvTYPE(av) != SVt_PVAV) |
cea2e8a9 |
446 | DIE(aTHX_ "Not an ARRAY reference"); |
533c011a |
447 | if (PL_op->op_flags & OPf_REF) { |
f5284f61 |
448 | SETs((SV*)av); |
a0d0e21e |
449 | RETURN; |
450 | } |
451 | } |
452 | else { |
453 | if (SvTYPE(sv) == SVt_PVAV) { |
454 | av = (AV*)sv; |
533c011a |
455 | if (PL_op->op_flags & OPf_REF) { |
f5284f61 |
456 | SETs((SV*)av); |
a0d0e21e |
457 | RETURN; |
458 | } |
459 | } |
460 | else { |
67955e0c |
461 | GV *gv; |
462 | |
a0d0e21e |
463 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 |
464 | char *sym; |
c9d5ac95 |
465 | STRLEN len; |
748a9306 |
466 | |
a0d0e21e |
467 | if (SvGMAGICAL(sv)) { |
468 | mg_get(sv); |
469 | if (SvROK(sv)) |
470 | goto wasref; |
471 | } |
472 | if (!SvOK(sv)) { |
533c011a |
473 | if (PL_op->op_flags & OPf_REF || |
474 | PL_op->op_private & HINT_STRICT_REFS) |
cea2e8a9 |
475 | DIE(aTHX_ PL_no_usym, "an ARRAY"); |
599cee73 |
476 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 |
477 | report_uninit(); |
f5284f61 |
478 | if (GIMME == G_ARRAY) { |
c2444246 |
479 | (void)POPs; |
4633a7c4 |
480 | RETURN; |
f5284f61 |
481 | } |
482 | RETSETUNDEF; |
a0d0e21e |
483 | } |
c9d5ac95 |
484 | sym = SvPV(sv,len); |
35cd451c |
485 | if ((PL_op->op_flags & OPf_SPECIAL) && |
486 | !(PL_op->op_flags & OPf_MOD)) |
487 | { |
488 | gv = (GV*)gv_fetchpv(sym, FALSE, SVt_PVAV); |
c9d5ac95 |
489 | if (!gv |
490 | && (!is_gv_magical(sym,len,0) |
491 | || !(gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVAV)))) |
492 | { |
35cd451c |
493 | RETSETUNDEF; |
c9d5ac95 |
494 | } |
35cd451c |
495 | } |
496 | else { |
497 | if (PL_op->op_private & HINT_STRICT_REFS) |
cea2e8a9 |
498 | DIE(aTHX_ PL_no_symref, sym, "an ARRAY"); |
35cd451c |
499 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVAV); |
500 | } |
501 | } |
502 | else { |
67955e0c |
503 | gv = (GV*)sv; |
a0d0e21e |
504 | } |
67955e0c |
505 | av = GvAVn(gv); |
533c011a |
506 | if (PL_op->op_private & OPpLVAL_INTRO) |
67955e0c |
507 | av = save_ary(gv); |
533c011a |
508 | if (PL_op->op_flags & OPf_REF) { |
f5284f61 |
509 | SETs((SV*)av); |
a0d0e21e |
510 | RETURN; |
511 | } |
512 | } |
513 | } |
514 | |
515 | if (GIMME == G_ARRAY) { |
516 | I32 maxarg = AvFILL(av) + 1; |
c2444246 |
517 | (void)POPs; /* XXXX May be optimized away? */ |
93965878 |
518 | EXTEND(SP, maxarg); |
519 | if (SvRMAGICAL(av)) { |
520 | U32 i; |
521 | for (i=0; i < maxarg; i++) { |
522 | SV **svp = av_fetch(av, i, FALSE); |
3280af22 |
523 | SP[i+1] = (svp) ? *svp : &PL_sv_undef; |
93965878 |
524 | } |
525 | } |
526 | else { |
527 | Copy(AvARRAY(av), SP+1, maxarg, SV*); |
528 | } |
a0d0e21e |
529 | SP += maxarg; |
530 | } |
531 | else { |
532 | dTARGET; |
533 | I32 maxarg = AvFILL(av) + 1; |
f5284f61 |
534 | SETi(maxarg); |
a0d0e21e |
535 | } |
536 | RETURN; |
537 | } |
538 | |
539 | PP(pp_rv2hv) |
540 | { |
4e35701f |
541 | djSP; dTOPss; |
a0d0e21e |
542 | HV *hv; |
543 | |
544 | if (SvROK(sv)) { |
545 | wasref: |
f5284f61 |
546 | tryAMAGICunDEREF(to_hv); |
547 | |
a0d0e21e |
548 | hv = (HV*)SvRV(sv); |
c750a3ec |
549 | if (SvTYPE(hv) != SVt_PVHV && SvTYPE(hv) != SVt_PVAV) |
cea2e8a9 |
550 | DIE(aTHX_ "Not a HASH reference"); |
533c011a |
551 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e |
552 | SETs((SV*)hv); |
553 | RETURN; |
554 | } |
555 | } |
556 | else { |
c750a3ec |
557 | if (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) { |
a0d0e21e |
558 | hv = (HV*)sv; |
533c011a |
559 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e |
560 | SETs((SV*)hv); |
561 | RETURN; |
562 | } |
563 | } |
564 | else { |
67955e0c |
565 | GV *gv; |
566 | |
a0d0e21e |
567 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 |
568 | char *sym; |
c9d5ac95 |
569 | STRLEN len; |
748a9306 |
570 | |
a0d0e21e |
571 | if (SvGMAGICAL(sv)) { |
572 | mg_get(sv); |
573 | if (SvROK(sv)) |
574 | goto wasref; |
575 | } |
576 | if (!SvOK(sv)) { |
533c011a |
577 | if (PL_op->op_flags & OPf_REF || |
578 | PL_op->op_private & HINT_STRICT_REFS) |
cea2e8a9 |
579 | DIE(aTHX_ PL_no_usym, "a HASH"); |
599cee73 |
580 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 |
581 | report_uninit(); |
4633a7c4 |
582 | if (GIMME == G_ARRAY) { |
583 | SP--; |
584 | RETURN; |
585 | } |
a0d0e21e |
586 | RETSETUNDEF; |
587 | } |
c9d5ac95 |
588 | sym = SvPV(sv,len); |
35cd451c |
589 | if ((PL_op->op_flags & OPf_SPECIAL) && |
590 | !(PL_op->op_flags & OPf_MOD)) |
591 | { |
592 | gv = (GV*)gv_fetchpv(sym, FALSE, SVt_PVHV); |
c9d5ac95 |
593 | if (!gv |
594 | && (!is_gv_magical(sym,len,0) |
595 | || !(gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVHV)))) |
596 | { |
35cd451c |
597 | RETSETUNDEF; |
c9d5ac95 |
598 | } |
35cd451c |
599 | } |
600 | else { |
601 | if (PL_op->op_private & HINT_STRICT_REFS) |
cea2e8a9 |
602 | DIE(aTHX_ PL_no_symref, sym, "a HASH"); |
35cd451c |
603 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVHV); |
604 | } |
605 | } |
606 | else { |
67955e0c |
607 | gv = (GV*)sv; |
a0d0e21e |
608 | } |
67955e0c |
609 | hv = GvHVn(gv); |
533c011a |
610 | if (PL_op->op_private & OPpLVAL_INTRO) |
67955e0c |
611 | hv = save_hash(gv); |
533c011a |
612 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e |
613 | SETs((SV*)hv); |
614 | RETURN; |
615 | } |
616 | } |
617 | } |
618 | |
619 | if (GIMME == G_ARRAY) { /* array wanted */ |
3280af22 |
620 | *PL_stack_sp = (SV*)hv; |
cea2e8a9 |
621 | return do_kv(); |
a0d0e21e |
622 | } |
623 | else { |
624 | dTARGET; |
4b154ab5 |
625 | if (SvTYPE(hv) == SVt_PVAV) |
626 | hv = avhv_keys((AV*)hv); |
b9c39e73 |
627 | if (HvFILL(hv)) |
57def98f |
628 | Perl_sv_setpvf(aTHX_ TARG, "%"IVdf"/%"IVdf, |
629 | (IV)HvFILL(hv), (IV)HvMAX(hv) + 1); |
a0d0e21e |
630 | else |
631 | sv_setiv(TARG, 0); |
c750a3ec |
632 | |
a0d0e21e |
633 | SETTARG; |
634 | RETURN; |
635 | } |
636 | } |
637 | |
10c8fecd |
638 | STATIC int |
639 | S_do_maybe_phash(pTHX_ AV *ary, SV **lelem, SV **firstlelem, SV **relem, |
640 | SV **lastrelem) |
641 | { |
642 | OP *leftop; |
10c8fecd |
643 | I32 i; |
644 | |
645 | leftop = ((BINOP*)PL_op)->op_last; |
646 | assert(leftop); |
647 | assert(leftop->op_type == OP_NULL && leftop->op_targ == OP_LIST); |
648 | leftop = ((LISTOP*)leftop)->op_first; |
649 | assert(leftop); |
650 | /* Skip PUSHMARK and each element already assigned to. */ |
651 | for (i = lelem - firstlelem; i > 0; i--) { |
652 | leftop = leftop->op_sibling; |
653 | assert(leftop); |
654 | } |
655 | if (leftop->op_type != OP_RV2HV) |
656 | return 0; |
657 | |
658 | /* pseudohash */ |
659 | if (av_len(ary) > 0) |
660 | av_fill(ary, 0); /* clear all but the fields hash */ |
661 | if (lastrelem >= relem) { |
662 | while (relem < lastrelem) { /* gobble up all the rest */ |
663 | SV *tmpstr; |
664 | assert(relem[0]); |
665 | assert(relem[1]); |
666 | /* Avoid a memory leak when avhv_store_ent dies. */ |
667 | tmpstr = sv_newmortal(); |
668 | sv_setsv(tmpstr,relem[1]); /* value */ |
669 | relem[1] = tmpstr; |
670 | if (avhv_store_ent(ary,relem[0],tmpstr,0)) |
d16e9ed9 |
671 | (void)SvREFCNT_inc(tmpstr); |
10c8fecd |
672 | if (SvMAGICAL(ary) != 0 && SvSMAGICAL(tmpstr)) |
673 | mg_set(tmpstr); |
674 | relem += 2; |
675 | TAINT_NOT; |
676 | } |
677 | } |
678 | if (relem == lastrelem) |
679 | return 1; |
680 | return 2; |
681 | } |
682 | |
683 | STATIC void |
684 | S_do_oddball(pTHX_ HV *hash, SV **relem, SV **firstrelem) |
685 | { |
686 | if (*relem) { |
687 | SV *tmpstr; |
688 | if (ckWARN(WARN_MISC)) { |
689 | if (relem == firstrelem && |
690 | SvROK(*relem) && |
691 | (SvTYPE(SvRV(*relem)) == SVt_PVAV || |
692 | SvTYPE(SvRV(*relem)) == SVt_PVHV)) |
693 | { |
694 | Perl_warner(aTHX_ WARN_MISC, |
695 | "Reference found where even-sized list expected"); |
696 | } |
697 | else |
698 | Perl_warner(aTHX_ WARN_MISC, |
699 | "Odd number of elements in hash assignment"); |
700 | } |
701 | if (SvTYPE(hash) == SVt_PVAV) { |
702 | /* pseudohash */ |
703 | tmpstr = sv_newmortal(); |
704 | if (avhv_store_ent((AV*)hash,*relem,tmpstr,0)) |
d16e9ed9 |
705 | (void)SvREFCNT_inc(tmpstr); |
10c8fecd |
706 | if (SvMAGICAL(hash) && SvSMAGICAL(tmpstr)) |
707 | mg_set(tmpstr); |
708 | } |
709 | else { |
710 | HE *didstore; |
711 | tmpstr = NEWSV(29,0); |
712 | didstore = hv_store_ent(hash,*relem,tmpstr,0); |
713 | if (SvMAGICAL(hash)) { |
714 | if (SvSMAGICAL(tmpstr)) |
715 | mg_set(tmpstr); |
716 | if (!didstore) |
717 | sv_2mortal(tmpstr); |
718 | } |
719 | } |
720 | TAINT_NOT; |
721 | } |
722 | } |
723 | |
a0d0e21e |
724 | PP(pp_aassign) |
725 | { |
4e35701f |
726 | djSP; |
3280af22 |
727 | SV **lastlelem = PL_stack_sp; |
728 | SV **lastrelem = PL_stack_base + POPMARK; |
729 | SV **firstrelem = PL_stack_base + POPMARK + 1; |
a0d0e21e |
730 | SV **firstlelem = lastrelem + 1; |
731 | |
732 | register SV **relem; |
733 | register SV **lelem; |
734 | |
735 | register SV *sv; |
736 | register AV *ary; |
737 | |
54310121 |
738 | I32 gimme; |
a0d0e21e |
739 | HV *hash; |
740 | I32 i; |
741 | int magic; |
742 | |
3280af22 |
743 | PL_delaymagic = DM_DELAY; /* catch simultaneous items */ |
a0d0e21e |
744 | |
745 | /* If there's a common identifier on both sides we have to take |
746 | * special care that assigning the identifier on the left doesn't |
747 | * clobber a value on the right that's used later in the list. |
748 | */ |
10c8fecd |
749 | if (PL_op->op_private & (OPpASSIGN_COMMON)) { |
cc5e57d2 |
750 | EXTEND_MORTAL(lastrelem - firstrelem + 1); |
10c8fecd |
751 | for (relem = firstrelem; relem <= lastrelem; relem++) { |
752 | /*SUPPRESS 560*/ |
155aba94 |
753 | if ((sv = *relem)) { |
a1f49e72 |
754 | TAINT_NOT; /* Each item is independent */ |
10c8fecd |
755 | *relem = sv_mortalcopy(sv); |
a1f49e72 |
756 | } |
10c8fecd |
757 | } |
a0d0e21e |
758 | } |
759 | |
760 | relem = firstrelem; |
761 | lelem = firstlelem; |
762 | ary = Null(AV*); |
763 | hash = Null(HV*); |
10c8fecd |
764 | |
a0d0e21e |
765 | while (lelem <= lastlelem) { |
bbce6d69 |
766 | TAINT_NOT; /* Each item stands on its own, taintwise. */ |
a0d0e21e |
767 | sv = *lelem++; |
768 | switch (SvTYPE(sv)) { |
769 | case SVt_PVAV: |
770 | ary = (AV*)sv; |
748a9306 |
771 | magic = SvMAGICAL(ary) != 0; |
10c8fecd |
772 | if (PL_op->op_private & OPpASSIGN_HASH) { |
773 | switch (do_maybe_phash(ary, lelem, firstlelem, relem, |
774 | lastrelem)) |
775 | { |
776 | case 0: |
777 | goto normal_array; |
778 | case 1: |
779 | do_oddball((HV*)ary, relem, firstrelem); |
780 | } |
781 | relem = lastrelem + 1; |
782 | break; |
783 | } |
784 | normal_array: |
a0d0e21e |
785 | av_clear(ary); |
7e42bd57 |
786 | av_extend(ary, lastrelem - relem); |
a0d0e21e |
787 | i = 0; |
788 | while (relem <= lastrelem) { /* gobble up all the rest */ |
5117ca91 |
789 | SV **didstore; |
a0d0e21e |
790 | sv = NEWSV(28,0); |
791 | assert(*relem); |
792 | sv_setsv(sv,*relem); |
793 | *(relem++) = sv; |
5117ca91 |
794 | didstore = av_store(ary,i++,sv); |
795 | if (magic) { |
fb73857a |
796 | if (SvSMAGICAL(sv)) |
797 | mg_set(sv); |
5117ca91 |
798 | if (!didstore) |
8127e0e3 |
799 | sv_2mortal(sv); |
5117ca91 |
800 | } |
bbce6d69 |
801 | TAINT_NOT; |
a0d0e21e |
802 | } |
803 | break; |
10c8fecd |
804 | case SVt_PVHV: { /* normal hash */ |
a0d0e21e |
805 | SV *tmpstr; |
806 | |
807 | hash = (HV*)sv; |
748a9306 |
808 | magic = SvMAGICAL(hash) != 0; |
a0d0e21e |
809 | hv_clear(hash); |
810 | |
811 | while (relem < lastrelem) { /* gobble up all the rest */ |
5117ca91 |
812 | HE *didstore; |
4633a7c4 |
813 | if (*relem) |
a0d0e21e |
814 | sv = *(relem++); |
4633a7c4 |
815 | else |
3280af22 |
816 | sv = &PL_sv_no, relem++; |
a0d0e21e |
817 | tmpstr = NEWSV(29,0); |
818 | if (*relem) |
819 | sv_setsv(tmpstr,*relem); /* value */ |
820 | *(relem++) = tmpstr; |
5117ca91 |
821 | didstore = hv_store_ent(hash,sv,tmpstr,0); |
822 | if (magic) { |
fb73857a |
823 | if (SvSMAGICAL(tmpstr)) |
824 | mg_set(tmpstr); |
5117ca91 |
825 | if (!didstore) |
8127e0e3 |
826 | sv_2mortal(tmpstr); |
5117ca91 |
827 | } |
bbce6d69 |
828 | TAINT_NOT; |
8e07c86e |
829 | } |
6a0deba8 |
830 | if (relem == lastrelem) { |
10c8fecd |
831 | do_oddball(hash, relem, firstrelem); |
6a0deba8 |
832 | relem++; |
1930e939 |
833 | } |
a0d0e21e |
834 | } |
835 | break; |
836 | default: |
6fc92669 |
837 | if (SvIMMORTAL(sv)) { |
838 | if (relem <= lastrelem) |
839 | relem++; |
840 | break; |
a0d0e21e |
841 | } |
842 | if (relem <= lastrelem) { |
843 | sv_setsv(sv, *relem); |
844 | *(relem++) = sv; |
845 | } |
846 | else |
3280af22 |
847 | sv_setsv(sv, &PL_sv_undef); |
a0d0e21e |
848 | SvSETMAGIC(sv); |
849 | break; |
850 | } |
851 | } |
3280af22 |
852 | if (PL_delaymagic & ~DM_DELAY) { |
853 | if (PL_delaymagic & DM_UID) { |
a0d0e21e |
854 | #ifdef HAS_SETRESUID |
b28d0864 |
855 | (void)setresuid(PL_uid,PL_euid,(Uid_t)-1); |
56febc5e |
856 | #else |
857 | # ifdef HAS_SETREUID |
3280af22 |
858 | (void)setreuid(PL_uid,PL_euid); |
56febc5e |
859 | # else |
860 | # ifdef HAS_SETRUID |
b28d0864 |
861 | if ((PL_delaymagic & DM_UID) == DM_RUID) { |
862 | (void)setruid(PL_uid); |
863 | PL_delaymagic &= ~DM_RUID; |
a0d0e21e |
864 | } |
56febc5e |
865 | # endif /* HAS_SETRUID */ |
866 | # ifdef HAS_SETEUID |
b28d0864 |
867 | if ((PL_delaymagic & DM_UID) == DM_EUID) { |
868 | (void)seteuid(PL_uid); |
869 | PL_delaymagic &= ~DM_EUID; |
a0d0e21e |
870 | } |
56febc5e |
871 | # endif /* HAS_SETEUID */ |
b28d0864 |
872 | if (PL_delaymagic & DM_UID) { |
873 | if (PL_uid != PL_euid) |
cea2e8a9 |
874 | DIE(aTHX_ "No setreuid available"); |
b28d0864 |
875 | (void)PerlProc_setuid(PL_uid); |
a0d0e21e |
876 | } |
56febc5e |
877 | # endif /* HAS_SETREUID */ |
878 | #endif /* HAS_SETRESUID */ |
d8eceb89 |
879 | PL_uid = PerlProc_getuid(); |
880 | PL_euid = PerlProc_geteuid(); |
a0d0e21e |
881 | } |
3280af22 |
882 | if (PL_delaymagic & DM_GID) { |
a0d0e21e |
883 | #ifdef HAS_SETRESGID |
b28d0864 |
884 | (void)setresgid(PL_gid,PL_egid,(Gid_t)-1); |
56febc5e |
885 | #else |
886 | # ifdef HAS_SETREGID |
3280af22 |
887 | (void)setregid(PL_gid,PL_egid); |
56febc5e |
888 | # else |
889 | # ifdef HAS_SETRGID |
b28d0864 |
890 | if ((PL_delaymagic & DM_GID) == DM_RGID) { |
891 | (void)setrgid(PL_gid); |
892 | PL_delaymagic &= ~DM_RGID; |
a0d0e21e |
893 | } |
56febc5e |
894 | # endif /* HAS_SETRGID */ |
895 | # ifdef HAS_SETEGID |
b28d0864 |
896 | if ((PL_delaymagic & DM_GID) == DM_EGID) { |
897 | (void)setegid(PL_gid); |
898 | PL_delaymagic &= ~DM_EGID; |
a0d0e21e |
899 | } |
56febc5e |
900 | # endif /* HAS_SETEGID */ |
b28d0864 |
901 | if (PL_delaymagic & DM_GID) { |
902 | if (PL_gid != PL_egid) |
cea2e8a9 |
903 | DIE(aTHX_ "No setregid available"); |
b28d0864 |
904 | (void)PerlProc_setgid(PL_gid); |
a0d0e21e |
905 | } |
56febc5e |
906 | # endif /* HAS_SETREGID */ |
907 | #endif /* HAS_SETRESGID */ |
d8eceb89 |
908 | PL_gid = PerlProc_getgid(); |
909 | PL_egid = PerlProc_getegid(); |
a0d0e21e |
910 | } |
3280af22 |
911 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
a0d0e21e |
912 | } |
3280af22 |
913 | PL_delaymagic = 0; |
54310121 |
914 | |
915 | gimme = GIMME_V; |
916 | if (gimme == G_VOID) |
917 | SP = firstrelem - 1; |
918 | else if (gimme == G_SCALAR) { |
919 | dTARGET; |
920 | SP = firstrelem; |
921 | SETi(lastrelem - firstrelem + 1); |
922 | } |
923 | else { |
a0d0e21e |
924 | if (ary || hash) |
925 | SP = lastrelem; |
926 | else |
927 | SP = firstrelem + (lastlelem - firstlelem); |
0c8c7a05 |
928 | lelem = firstlelem + (relem - firstrelem); |
5f05dabc |
929 | while (relem <= SP) |
3280af22 |
930 | *relem++ = (lelem <= lastlelem) ? *lelem++ : &PL_sv_undef; |
a0d0e21e |
931 | } |
54310121 |
932 | RETURN; |
a0d0e21e |
933 | } |
934 | |
8782bef2 |
935 | PP(pp_qr) |
936 | { |
937 | djSP; |
938 | register PMOP *pm = cPMOP; |
939 | SV *rv = sv_newmortal(); |
57668c4d |
940 | SV *sv = newSVrv(rv, "Regexp"); |
8782bef2 |
941 | sv_magic(sv,(SV*)ReREFCNT_inc(pm->op_pmregexp),'r',0,0); |
942 | RETURNX(PUSHs(rv)); |
943 | } |
944 | |
a0d0e21e |
945 | PP(pp_match) |
946 | { |
4e35701f |
947 | djSP; dTARG; |
a0d0e21e |
948 | register PMOP *pm = cPMOP; |
949 | register char *t; |
950 | register char *s; |
951 | char *strend; |
952 | I32 global; |
f722798b |
953 | I32 r_flags = REXEC_CHECKED; |
954 | char *truebase; /* Start of string */ |
d9f97599 |
955 | register REGEXP *rx = pm->op_pmregexp; |
b3eb6a9b |
956 | bool rxtainted; |
a0d0e21e |
957 | I32 gimme = GIMME; |
958 | STRLEN len; |
748a9306 |
959 | I32 minmatch = 0; |
3280af22 |
960 | I32 oldsave = PL_savestack_ix; |
f86702cc |
961 | I32 update_minmatch = 1; |
e60df1fa |
962 | I32 had_zerolen = 0; |
a0d0e21e |
963 | |
533c011a |
964 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e |
965 | TARG = POPs; |
966 | else { |
54b9620d |
967 | TARG = DEFSV; |
a0d0e21e |
968 | EXTEND(SP,1); |
969 | } |
c277df42 |
970 | PUTBACK; /* EVAL blocks need stack_sp. */ |
a0d0e21e |
971 | s = SvPV(TARG, len); |
972 | strend = s + len; |
973 | if (!s) |
cea2e8a9 |
974 | DIE(aTHX_ "panic: do_match"); |
b3eb6a9b |
975 | rxtainted = ((pm->op_pmdynflags & PMdf_TAINTED) || |
3280af22 |
976 | (PL_tainted && (pm->op_pmflags & PMf_RETAINT))); |
9212bbba |
977 | TAINT_NOT; |
a0d0e21e |
978 | |
48c036b1 |
979 | if (pm->op_pmdynflags & PMdf_USED) { |
c277df42 |
980 | failure: |
a0d0e21e |
981 | if (gimme == G_ARRAY) |
982 | RETURN; |
983 | RETPUSHNO; |
984 | } |
985 | |
3280af22 |
986 | if (!rx->prelen && PL_curpm) { |
987 | pm = PL_curpm; |
d9f97599 |
988 | rx = pm->op_pmregexp; |
a0d0e21e |
989 | } |
d9f97599 |
990 | if (rx->minlen > len) goto failure; |
c277df42 |
991 | |
a0d0e21e |
992 | truebase = t = s; |
ad94a511 |
993 | |
994 | /* XXXX What part of this is needed with true \G-support? */ |
155aba94 |
995 | if ((global = pm->op_pmflags & PMf_GLOBAL)) { |
cf93c79d |
996 | rx->startp[0] = -1; |
a0d0e21e |
997 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
998 | MAGIC* mg = mg_find(TARG, 'g'); |
565764a8 |
999 | if (mg && mg->mg_len >= 0) { |
b7a35066 |
1000 | if (!(rx->reganch & ROPT_GPOS_SEEN)) |
cf93c79d |
1001 | rx->endp[0] = rx->startp[0] = mg->mg_len; |
0ef3e39e |
1002 | else if (rx->reganch & ROPT_ANCH_GPOS) { |
1003 | r_flags |= REXEC_IGNOREPOS; |
cf93c79d |
1004 | rx->endp[0] = rx->startp[0] = mg->mg_len; |
0ef3e39e |
1005 | } |
748a9306 |
1006 | minmatch = (mg->mg_flags & MGf_MINMATCH); |
f86702cc |
1007 | update_minmatch = 0; |
748a9306 |
1008 | } |
a0d0e21e |
1009 | } |
1010 | } |
0ef3e39e |
1011 | if ((gimme != G_ARRAY && !global && rx->nparens) |
1012 | || SvTEMP(TARG) || PL_sawampersand) |
1013 | r_flags |= REXEC_COPY_STR; |
f722798b |
1014 | if (SvSCREAM(TARG)) |
22e551b9 |
1015 | r_flags |= REXEC_SCREAM; |
1016 | |
a0d0e21e |
1017 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
3280af22 |
1018 | SAVEINT(PL_multiline); |
1019 | PL_multiline = pm->op_pmflags & PMf_MULTILINE; |
a0d0e21e |
1020 | } |
1021 | |
1022 | play_it_again: |
cf93c79d |
1023 | if (global && rx->startp[0] != -1) { |
1024 | t = s = rx->endp[0] + truebase; |
d9f97599 |
1025 | if ((s + rx->minlen) > strend) |
a0d0e21e |
1026 | goto nope; |
f86702cc |
1027 | if (update_minmatch++) |
e60df1fa |
1028 | minmatch = had_zerolen; |
a0d0e21e |
1029 | } |
f722798b |
1030 | if (rx->reganch & RE_USE_INTUIT) { |
1031 | s = CALLREG_INTUIT_START(aTHX_ rx, TARG, s, strend, r_flags, NULL); |
1032 | |
1033 | if (!s) |
1034 | goto nope; |
1035 | if ( (rx->reganch & ROPT_CHECK_ALL) |
1036 | && !PL_sawampersand |
1037 | && ((rx->reganch & ROPT_NOSCAN) |
1038 | || !((rx->reganch & RE_INTUIT_TAIL) |
05b4157f |
1039 | && (r_flags & REXEC_SCREAM))) |
1040 | && !SvROK(TARG)) /* Cannot trust since INTUIT cannot guess ^ */ |
f722798b |
1041 | goto yup; |
a0d0e21e |
1042 | } |
cea2e8a9 |
1043 | if (CALLREGEXEC(aTHX_ rx, s, strend, truebase, minmatch, TARG, NULL, r_flags)) |
bbce6d69 |
1044 | { |
3280af22 |
1045 | PL_curpm = pm; |
a0d0e21e |
1046 | if (pm->op_pmflags & PMf_ONCE) |
48c036b1 |
1047 | pm->op_pmdynflags |= PMdf_USED; |
a0d0e21e |
1048 | goto gotcha; |
1049 | } |
1050 | else |
1051 | goto ret_no; |
1052 | /*NOTREACHED*/ |
1053 | |
1054 | gotcha: |
72311751 |
1055 | if (rxtainted) |
1056 | RX_MATCH_TAINTED_on(rx); |
1057 | TAINT_IF(RX_MATCH_TAINTED(rx)); |
a0d0e21e |
1058 | if (gimme == G_ARRAY) { |
1059 | I32 iters, i, len; |
1060 | |
d9f97599 |
1061 | iters = rx->nparens; |
a0d0e21e |
1062 | if (global && !iters) |
1063 | i = 1; |
1064 | else |
1065 | i = 0; |
c277df42 |
1066 | SPAGAIN; /* EVAL blocks could move the stack. */ |
a0d0e21e |
1067 | EXTEND(SP, iters + i); |
bbce6d69 |
1068 | EXTEND_MORTAL(iters + i); |
a0d0e21e |
1069 | for (i = !i; i <= iters; i++) { |
1070 | PUSHs(sv_newmortal()); |
1071 | /*SUPPRESS 560*/ |
cf93c79d |
1072 | if ((rx->startp[i] != -1) && rx->endp[i] != -1 ) { |
1073 | len = rx->endp[i] - rx->startp[i]; |
1074 | s = rx->startp[i] + truebase; |
a0d0e21e |
1075 | sv_setpvn(*SP, s, len); |
a197cbdd |
1076 | if ((pm->op_pmdynflags & PMdf_UTF8) && !IN_BYTE) { |
1077 | SvUTF8_on(*SP); |
1078 | sv_utf8_downgrade(*SP, TRUE); |
1079 | } |
a0d0e21e |
1080 | } |
1081 | } |
1082 | if (global) { |
cf93c79d |
1083 | had_zerolen = (rx->startp[0] != -1 |
1084 | && rx->startp[0] == rx->endp[0]); |
c277df42 |
1085 | PUTBACK; /* EVAL blocks may use stack */ |
cf93c79d |
1086 | r_flags |= REXEC_IGNOREPOS | REXEC_NOT_FIRST; |
a0d0e21e |
1087 | goto play_it_again; |
1088 | } |
f7e33566 |
1089 | else if (!iters) |
bde848c5 |
1090 | XPUSHs(&PL_sv_yes); |
4633a7c4 |
1091 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1092 | RETURN; |
1093 | } |
1094 | else { |
1095 | if (global) { |
1096 | MAGIC* mg = 0; |
1097 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) |
1098 | mg = mg_find(TARG, 'g'); |
1099 | if (!mg) { |
1100 | sv_magic(TARG, (SV*)0, 'g', Nullch, 0); |
1101 | mg = mg_find(TARG, 'g'); |
1102 | } |
cf93c79d |
1103 | if (rx->startp[0] != -1) { |
1104 | mg->mg_len = rx->endp[0]; |
d9f97599 |
1105 | if (rx->startp[0] == rx->endp[0]) |
748a9306 |
1106 | mg->mg_flags |= MGf_MINMATCH; |
1107 | else |
1108 | mg->mg_flags &= ~MGf_MINMATCH; |
1109 | } |
a0d0e21e |
1110 | } |
4633a7c4 |
1111 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1112 | RETPUSHYES; |
1113 | } |
1114 | |
f722798b |
1115 | yup: /* Confirmed by INTUIT */ |
72311751 |
1116 | if (rxtainted) |
1117 | RX_MATCH_TAINTED_on(rx); |
1118 | TAINT_IF(RX_MATCH_TAINTED(rx)); |
3280af22 |
1119 | PL_curpm = pm; |
a0d0e21e |
1120 | if (pm->op_pmflags & PMf_ONCE) |
48c036b1 |
1121 | pm->op_pmdynflags |= PMdf_USED; |
cf93c79d |
1122 | if (RX_MATCH_COPIED(rx)) |
1123 | Safefree(rx->subbeg); |
1124 | RX_MATCH_COPIED_off(rx); |
1125 | rx->subbeg = Nullch; |
a0d0e21e |
1126 | if (global) { |
d9f97599 |
1127 | rx->subbeg = truebase; |
cf93c79d |
1128 | rx->startp[0] = s - truebase; |
f722798b |
1129 | rx->endp[0] = s - truebase + rx->minlen; |
cf93c79d |
1130 | rx->sublen = strend - truebase; |
a0d0e21e |
1131 | goto gotcha; |
cf93c79d |
1132 | } |
3280af22 |
1133 | if (PL_sawampersand) { |
cf93c79d |
1134 | I32 off; |
a0d0e21e |
1135 | |
cf93c79d |
1136 | rx->subbeg = savepvn(t, strend - t); |
1137 | rx->sublen = strend - t; |
1138 | RX_MATCH_COPIED_on(rx); |
1139 | off = rx->startp[0] = s - t; |
f722798b |
1140 | rx->endp[0] = off + rx->minlen; |
cf93c79d |
1141 | } |
1142 | else { /* startp/endp are used by @- @+. */ |
1143 | rx->startp[0] = s - truebase; |
f722798b |
1144 | rx->endp[0] = s - truebase + rx->minlen; |
a0d0e21e |
1145 | } |
fc19f8d0 |
1146 | rx->nparens = rx->lastparen = 0; /* used by @- and @+ */ |
4633a7c4 |
1147 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1148 | RETPUSHYES; |
1149 | |
1150 | nope: |
a0d0e21e |
1151 | ret_no: |
c90c0ff4 |
1152 | if (global && !(pm->op_pmflags & PMf_CONTINUE)) { |
a0d0e21e |
1153 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
1154 | MAGIC* mg = mg_find(TARG, 'g'); |
1155 | if (mg) |
565764a8 |
1156 | mg->mg_len = -1; |
a0d0e21e |
1157 | } |
1158 | } |
4633a7c4 |
1159 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1160 | if (gimme == G_ARRAY) |
1161 | RETURN; |
1162 | RETPUSHNO; |
1163 | } |
1164 | |
1165 | OP * |
864dbfa3 |
1166 | Perl_do_readline(pTHX) |
a0d0e21e |
1167 | { |
1168 | dSP; dTARGETSTACKED; |
1169 | register SV *sv; |
1170 | STRLEN tmplen = 0; |
1171 | STRLEN offset; |
760ac839 |
1172 | PerlIO *fp; |
3280af22 |
1173 | register IO *io = GvIO(PL_last_in_gv); |
533c011a |
1174 | register I32 type = PL_op->op_type; |
54310121 |
1175 | I32 gimme = GIMME_V; |
e79b0511 |
1176 | MAGIC *mg; |
a0d0e21e |
1177 | |
155aba94 |
1178 | if ((mg = SvTIED_mg((SV*)PL_last_in_gv, 'q'))) { |
e79b0511 |
1179 | PUSHMARK(SP); |
33c27489 |
1180 | XPUSHs(SvTIED_obj((SV*)PL_last_in_gv, mg)); |
e79b0511 |
1181 | PUTBACK; |
1182 | ENTER; |
864dbfa3 |
1183 | call_method("READLINE", gimme); |
e79b0511 |
1184 | LEAVE; |
1185 | SPAGAIN; |
54310121 |
1186 | if (gimme == G_SCALAR) |
1187 | SvSetMagicSV_nosteal(TARG, TOPs); |
e79b0511 |
1188 | RETURN; |
1189 | } |
a0d0e21e |
1190 | fp = Nullfp; |
1191 | if (io) { |
1192 | fp = IoIFP(io); |
1193 | if (!fp) { |
1194 | if (IoFLAGS(io) & IOf_ARGV) { |
1195 | if (IoFLAGS(io) & IOf_START) { |
a0d0e21e |
1196 | IoLINES(io) = 0; |
3280af22 |
1197 | if (av_len(GvAVn(PL_last_in_gv)) < 0) { |
1d7c1841 |
1198 | IoFLAGS(io) &= ~IOf_START; |
9d116dd7 |
1199 | do_open(PL_last_in_gv,"-",1,FALSE,O_RDONLY,0,Nullfp); |
3280af22 |
1200 | sv_setpvn(GvSV(PL_last_in_gv), "-", 1); |
1201 | SvSETMAGIC(GvSV(PL_last_in_gv)); |
a2008d6d |
1202 | fp = IoIFP(io); |
1203 | goto have_fp; |
a0d0e21e |
1204 | } |
1205 | } |
3280af22 |
1206 | fp = nextargv(PL_last_in_gv); |
a0d0e21e |
1207 | if (!fp) { /* Note: fp != IoIFP(io) */ |
3280af22 |
1208 | (void)do_close(PL_last_in_gv, FALSE); /* now it does*/ |
a0d0e21e |
1209 | } |
1210 | } |
1211 | else if (type == OP_GLOB) { |
1212 | SV *tmpcmd = NEWSV(55, 0); |
1213 | SV *tmpglob = POPs; |
1214 | ENTER; |
1215 | SAVEFREESV(tmpcmd); |
1216 | #ifdef VMS /* expand the wildcards right here, rather than opening a pipe, */ |
1217 | /* since spawning off a process is a real performance hit */ |
1218 | { |
1219 | #include <descrip.h> |
1220 | #include <lib$routines.h> |
1221 | #include <nam.h> |
1222 | #include <rmsdef.h> |
1223 | char rslt[NAM$C_MAXRSS+1+sizeof(unsigned short int)] = {'\0','\0'}; |
1224 | char vmsspec[NAM$C_MAXRSS+1]; |
1225 | char *rstr = rslt + sizeof(unsigned short int), *begin, *end, *cp; |
1226 | char tmpfnam[L_tmpnam] = "SYS$SCRATCH:"; |
1227 | $DESCRIPTOR(dfltdsc,"SYS$DISK:[]*.*;"); |
760ac839 |
1228 | PerlIO *tmpfp; |
a0d0e21e |
1229 | STRLEN i; |
1230 | struct dsc$descriptor_s wilddsc |
1231 | = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0}; |
1232 | struct dsc$descriptor_vs rsdsc |
1233 | = {sizeof rslt, DSC$K_DTYPE_VT, DSC$K_CLASS_VS, rslt}; |
1234 | unsigned long int cxt = 0, sts = 0, ok = 1, hasdir = 0, hasver = 0, isunix = 0; |
1235 | |
1236 | /* We could find out if there's an explicit dev/dir or version |
1237 | by peeking into lib$find_file's internal context at |
1238 | ((struct NAM *)((struct FAB *)cxt)->fab$l_nam)->nam$l_fnb |
1239 | but that's unsupported, so I don't want to do it now and |
1240 | have it bite someone in the future. */ |
6ad3d225 |
1241 | strcat(tmpfnam,PerlLIO_tmpnam(NULL)); |
a0d0e21e |
1242 | cp = SvPV(tmpglob,i); |
1243 | for (; i; i--) { |
1244 | if (cp[i] == ';') hasver = 1; |
1245 | if (cp[i] == '.') { |
1246 | if (sts) hasver = 1; |
1247 | else sts = 1; |
1248 | } |
1249 | if (cp[i] == '/') { |
1250 | hasdir = isunix = 1; |
1251 | break; |
748a9306 |
1252 | } |
a0d0e21e |
1253 | if (cp[i] == ']' || cp[i] == '>' || cp[i] == ':') { |
1254 | hasdir = 1; |
1255 | break; |
1256 | } |
1257 | } |
760ac839 |
1258 | if ((tmpfp = PerlIO_open(tmpfnam,"w+","fop=dlt")) != NULL) { |
09b7f37c |
1259 | Stat_t st; |
c6ed36e1 |
1260 | if (!PerlLIO_stat(SvPVX(tmpglob),&st) && S_ISDIR(st.st_mode)) |
09b7f37c |
1261 | ok = ((wilddsc.dsc$a_pointer = tovmspath(SvPVX(tmpglob),vmsspec)) != NULL); |
1262 | else ok = ((wilddsc.dsc$a_pointer = tovmsspec(SvPVX(tmpglob),vmsspec)) != NULL); |
a0d0e21e |
1263 | if (ok) wilddsc.dsc$w_length = (unsigned short int) strlen(wilddsc.dsc$a_pointer); |
1264 | while (ok && ((sts = lib$find_file(&wilddsc,&rsdsc,&cxt, |
1265 | &dfltdsc,NULL,NULL,NULL))&1)) { |
1266 | end = rstr + (unsigned long int) *rslt; |
1267 | if (!hasver) while (*end != ';') end--; |
1268 | *(end++) = '\n'; *end = '\0'; |
1269 | for (cp = rstr; *cp; cp++) *cp = _tolower(*cp); |
1270 | if (hasdir) { |
f86702cc |
1271 | if (isunix) trim_unixpath(rstr,SvPVX(tmpglob),1); |
a0d0e21e |
1272 | begin = rstr; |
1273 | } |
1274 | else { |
1275 | begin = end; |
1276 | while (*(--begin) != ']' && *begin != '>') ; |
1277 | ++begin; |
1278 | } |
760ac839 |
1279 | ok = (PerlIO_puts(tmpfp,begin) != EOF); |
a0d0e21e |
1280 | } |
1281 | if (cxt) (void)lib$find_file_end(&cxt); |
748a9306 |
1282 | if (ok && sts != RMS$_NMF && |
1283 | sts != RMS$_DNF && sts != RMS$_FNF) ok = 0; |
a0d0e21e |
1284 | if (!ok) { |
c07a80fd |
1285 | if (!(sts & 1)) { |
1286 | SETERRNO((sts == RMS$_SYN ? EINVAL : EVMSERR),sts); |
1287 | } |
760ac839 |
1288 | PerlIO_close(tmpfp); |
a0d0e21e |
1289 | fp = NULL; |
1290 | } |
1291 | else { |
760ac839 |
1292 | PerlIO_rewind(tmpfp); |
a0d0e21e |
1293 | IoTYPE(io) = '<'; |
1294 | IoIFP(io) = fp = tmpfp; |
1e422769 |
1295 | IoFLAGS(io) &= ~IOf_UNTAINT; /* maybe redundant */ |
a0d0e21e |
1296 | } |
1297 | } |
1298 | } |
1299 | #else /* !VMS */ |
1d7c1841 |
1300 | #ifdef MACOS_TRADITIONAL |
1301 | sv_setpv(tmpcmd, "glob "); |
1302 | sv_catsv(tmpcmd, tmpglob); |
1303 | sv_catpv(tmpcmd, " |"); |
1304 | #else |
a0d0e21e |
1305 | #ifdef DOSISH |
67955e0c |
1306 | #ifdef OS2 |
1307 | sv_setpv(tmpcmd, "for a in "); |
1308 | sv_catsv(tmpcmd, tmpglob); |
1309 | sv_catpv(tmpcmd, "; do echo \"$a\\0\\c\"; done |"); |
1310 | #else |
39e571d4 |
1311 | #ifdef DJGPP |
1312 | sv_setpv(tmpcmd, "/dev/dosglob/"); /* File System Extension */ |
1313 | sv_catsv(tmpcmd, tmpglob); |
1314 | #else |
a0d0e21e |
1315 | sv_setpv(tmpcmd, "perlglob "); |
1316 | sv_catsv(tmpcmd, tmpglob); |
1317 | sv_catpv(tmpcmd, " |"); |
39e571d4 |
1318 | #endif /* !DJGPP */ |
67955e0c |
1319 | #endif /* !OS2 */ |
1320 | #else /* !DOSISH */ |
1321 | #if defined(CSH) |
3280af22 |
1322 | sv_setpvn(tmpcmd, PL_cshname, PL_cshlen); |
a0d0e21e |
1323 | sv_catpv(tmpcmd, " -cf 'set nonomatch; glob "); |
1324 | sv_catsv(tmpcmd, tmpglob); |
16d20bd9 |
1325 | sv_catpv(tmpcmd, "' 2>/dev/null |"); |
a0d0e21e |
1326 | #else |
1327 | sv_setpv(tmpcmd, "echo "); |
1328 | sv_catsv(tmpcmd, tmpglob); |
1329 | #if 'z' - 'a' == 25 |
1330 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\012\\012\\012\\012'|"); |
1331 | #else |
1332 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\n\\n\\n\\n'|"); |
1333 | #endif |
1334 | #endif /* !CSH */ |
67955e0c |
1335 | #endif /* !DOSISH */ |
1d7c1841 |
1336 | #endif /* MACOS_TRADITIONAL */ |
3280af22 |
1337 | (void)do_open(PL_last_in_gv, SvPVX(tmpcmd), SvCUR(tmpcmd), |
9d116dd7 |
1338 | FALSE, O_RDONLY, 0, Nullfp); |
a0d0e21e |
1339 | fp = IoIFP(io); |
1340 | #endif /* !VMS */ |
1341 | LEAVE; |
1342 | } |
1343 | } |
1344 | else if (type == OP_GLOB) |
1345 | SP--; |
af8c498a |
1346 | else if (ckWARN(WARN_IO) /* stdout/stderr or other write fh */ |
1347 | && (IoTYPE(io) == '>' || fp == PerlIO_stdout() |
1348 | || fp == PerlIO_stderr())) |
1349 | { |
1350 | SV* sv = sv_newmortal(); |
1351 | gv_efullname3(sv, PL_last_in_gv, Nullch); |
1352 | Perl_warner(aTHX_ WARN_IO, "Filehandle %s opened only for output", |
1353 | SvPV_nolen(sv)); |
1354 | } |
a0d0e21e |
1355 | } |
1356 | if (!fp) { |
e476b1b5 |
1357 | if (ckWARN2(WARN_GLOB,WARN_CLOSED) && io && !(IoFLAGS(io) & IOf_START)) { |
3f4520fe |
1358 | if (type == OP_GLOB) |
e476b1b5 |
1359 | Perl_warner(aTHX_ WARN_GLOB, |
af8c498a |
1360 | "glob failed (can't start child: %s)", |
1361 | Strerror(errno)); |
69282e91 |
1362 | else |
1363 | report_closed_fh(PL_last_in_gv, io, "readline", "filehandle"); |
3f4520fe |
1364 | } |
54310121 |
1365 | if (gimme == G_SCALAR) { |
a0d0e21e |
1366 | (void)SvOK_off(TARG); |
1367 | PUSHTARG; |
1368 | } |
1369 | RETURN; |
1370 | } |
a2008d6d |
1371 | have_fp: |
54310121 |
1372 | if (gimme == G_SCALAR) { |
a0d0e21e |
1373 | sv = TARG; |
9607fc9c |
1374 | if (SvROK(sv)) |
1375 | sv_unref(sv); |
a0d0e21e |
1376 | (void)SvUPGRADE(sv, SVt_PV); |
1377 | tmplen = SvLEN(sv); /* remember if already alloced */ |
1378 | if (!tmplen) |
1379 | Sv_Grow(sv, 80); /* try short-buffering it */ |
1380 | if (type == OP_RCATLINE) |
1381 | offset = SvCUR(sv); |
1382 | else |
1383 | offset = 0; |
1384 | } |
54310121 |
1385 | else { |
1386 | sv = sv_2mortal(NEWSV(57, 80)); |
1387 | offset = 0; |
1388 | } |
fbad3eb5 |
1389 | |
684bef36 |
1390 | /* delay EOF state for a snarfed empty file */ |
fbad3eb5 |
1391 | #define SNARF_EOF(gimme,rs,io,sv) \ |
684bef36 |
1392 | (gimme != G_SCALAR || SvCUR(sv) \ |
1393 | || !RsSNARF(rs) || (IoFLAGS(io) & IOf_NOLINE) \ |
1394 | || ((IoFLAGS(io) |= IOf_NOLINE), FALSE)) |
fbad3eb5 |
1395 | |
a0d0e21e |
1396 | for (;;) { |
fbad3eb5 |
1397 | if (!sv_gets(sv, fp, offset) |
1398 | && (type == OP_GLOB || SNARF_EOF(gimme, PL_rs, io, sv))) |
1399 | { |
760ac839 |
1400 | PerlIO_clearerr(fp); |
a0d0e21e |
1401 | if (IoFLAGS(io) & IOf_ARGV) { |
3280af22 |
1402 | fp = nextargv(PL_last_in_gv); |
a0d0e21e |
1403 | if (fp) |
1404 | continue; |
3280af22 |
1405 | (void)do_close(PL_last_in_gv, FALSE); |
a0d0e21e |
1406 | } |
1407 | else if (type == OP_GLOB) { |
e476b1b5 |
1408 | if (!do_close(PL_last_in_gv, FALSE) && ckWARN(WARN_GLOB)) { |
1409 | Perl_warner(aTHX_ WARN_GLOB, |
4eb79ab5 |
1410 | "glob failed (child exited with status %d%s)", |
894356b3 |
1411 | (int)(STATUS_CURRENT >> 8), |
cf494569 |
1412 | (STATUS_CURRENT & 0x80) ? ", core dumped" : ""); |
4eb79ab5 |
1413 | } |
a0d0e21e |
1414 | } |
54310121 |
1415 | if (gimme == G_SCALAR) { |
a0d0e21e |
1416 | (void)SvOK_off(TARG); |
1417 | PUSHTARG; |
1418 | } |
1419 | RETURN; |
1420 | } |
bbce6d69 |
1421 | /* This should not be marked tainted if the fp is marked clean */ |
1422 | if (!(IoFLAGS(io) & IOf_UNTAINT)) { |
1423 | TAINT; |
1424 | SvTAINTED_on(sv); |
1425 | } |
a0d0e21e |
1426 | IoLINES(io)++; |
71be2cbc |
1427 | SvSETMAGIC(sv); |
a0d0e21e |
1428 | XPUSHs(sv); |
a0d0e21e |
1429 | if (type == OP_GLOB) { |
1430 | char *tmps; |
1431 | |
3280af22 |
1432 | if (SvCUR(sv) > 0 && SvCUR(PL_rs) > 0) { |
c07a80fd |
1433 | tmps = SvEND(sv) - 1; |
3280af22 |
1434 | if (*tmps == *SvPVX(PL_rs)) { |
c07a80fd |
1435 | *tmps = '\0'; |
1436 | SvCUR(sv)--; |
1437 | } |
1438 | } |
a0d0e21e |
1439 | for (tmps = SvPVX(sv); *tmps; tmps++) |
1440 | if (!isALPHA(*tmps) && !isDIGIT(*tmps) && |
1441 | strchr("$&*(){}[]'\";\\|?<>~`", *tmps)) |
1442 | break; |
43384a1a |
1443 | if (*tmps && PerlLIO_lstat(SvPVX(sv), &PL_statbuf) < 0) { |
a0d0e21e |
1444 | (void)POPs; /* Unmatched wildcard? Chuck it... */ |
1445 | continue; |
1446 | } |
1447 | } |
54310121 |
1448 | if (gimme == G_ARRAY) { |
a0d0e21e |
1449 | if (SvLEN(sv) - SvCUR(sv) > 20) { |
1450 | SvLEN_set(sv, SvCUR(sv)+1); |
1451 | Renew(SvPVX(sv), SvLEN(sv), char); |
1452 | } |
1453 | sv = sv_2mortal(NEWSV(58, 80)); |
1454 | continue; |
1455 | } |
54310121 |
1456 | else if (gimme == G_SCALAR && !tmplen && SvLEN(sv) - SvCUR(sv) > 80) { |
a0d0e21e |
1457 | /* try to reclaim a bit of scalar space (only on 1st alloc) */ |
1458 | if (SvCUR(sv) < 60) |
1459 | SvLEN_set(sv, 80); |
1460 | else |
1461 | SvLEN_set(sv, SvCUR(sv)+40); /* allow some slop */ |
1462 | Renew(SvPVX(sv), SvLEN(sv), char); |
1463 | } |
1464 | RETURN; |
1465 | } |
1466 | } |
1467 | |
1468 | PP(pp_enter) |
1469 | { |
4e35701f |
1470 | djSP; |
c09156bb |
1471 | register PERL_CONTEXT *cx; |
533c011a |
1472 | I32 gimme = OP_GIMME(PL_op, -1); |
a0d0e21e |
1473 | |
54310121 |
1474 | if (gimme == -1) { |
1475 | if (cxstack_ix >= 0) |
1476 | gimme = cxstack[cxstack_ix].blk_gimme; |
1477 | else |
1478 | gimme = G_SCALAR; |
1479 | } |
a0d0e21e |
1480 | |
1481 | ENTER; |
1482 | |
1483 | SAVETMPS; |
924508f0 |
1484 | PUSHBLOCK(cx, CXt_BLOCK, SP); |
a0d0e21e |
1485 | |
1486 | RETURN; |
1487 | } |
1488 | |
1489 | PP(pp_helem) |
1490 | { |
4e35701f |
1491 | djSP; |
760ac839 |
1492 | HE* he; |
ae77835f |
1493 | SV **svp; |
a0d0e21e |
1494 | SV *keysv = POPs; |
a0d0e21e |
1495 | HV *hv = (HV*)POPs; |
533c011a |
1496 | U32 lval = PL_op->op_flags & OPf_MOD; |
1497 | U32 defer = PL_op->op_private & OPpLVAL_DEFER; |
be6c24e0 |
1498 | SV *sv; |
a0d0e21e |
1499 | |
ae77835f |
1500 | if (SvTYPE(hv) == SVt_PVHV) { |
1501 | he = hv_fetch_ent(hv, keysv, lval && !defer, 0); |
97fcbf96 |
1502 | svp = he ? &HeVAL(he) : 0; |
ae77835f |
1503 | } |
1504 | else if (SvTYPE(hv) == SVt_PVAV) { |
0ebe0038 |
1505 | if (PL_op->op_private & OPpLVAL_INTRO) |
cea2e8a9 |
1506 | DIE(aTHX_ "Can't localize pseudo-hash element"); |
97fcbf96 |
1507 | svp = avhv_fetch_ent((AV*)hv, keysv, lval && !defer, 0); |
ae77835f |
1508 | } |
c750a3ec |
1509 | else { |
a0d0e21e |
1510 | RETPUSHUNDEF; |
c750a3ec |
1511 | } |
a0d0e21e |
1512 | if (lval) { |
3280af22 |
1513 | if (!svp || *svp == &PL_sv_undef) { |
68dc0745 |
1514 | SV* lv; |
1515 | SV* key2; |
2d8e6c8d |
1516 | if (!defer) { |
1517 | STRLEN n_a; |
cea2e8a9 |
1518 | DIE(aTHX_ PL_no_helem, SvPV(keysv, n_a)); |
2d8e6c8d |
1519 | } |
68dc0745 |
1520 | lv = sv_newmortal(); |
1521 | sv_upgrade(lv, SVt_PVLV); |
1522 | LvTYPE(lv) = 'y'; |
1523 | sv_magic(lv, key2 = newSVsv(keysv), 'y', Nullch, 0); |
1524 | SvREFCNT_dec(key2); /* sv_magic() increments refcount */ |
1525 | LvTARG(lv) = SvREFCNT_inc(hv); |
1526 | LvTARGLEN(lv) = 1; |
1527 | PUSHs(lv); |
1528 | RETURN; |
1529 | } |
533c011a |
1530 | if (PL_op->op_private & OPpLVAL_INTRO) { |
ae77835f |
1531 | if (HvNAME(hv) && isGV(*svp)) |
533c011a |
1532 | save_gp((GV*)*svp, !(PL_op->op_flags & OPf_SPECIAL)); |
5f05dabc |
1533 | else |
161b7d16 |
1534 | save_helem(hv, keysv, svp); |
5f05dabc |
1535 | } |
533c011a |
1536 | else if (PL_op->op_private & OPpDEREF) |
1537 | vivify_ref(*svp, PL_op->op_private & OPpDEREF); |
a0d0e21e |
1538 | } |
3280af22 |
1539 | sv = (svp ? *svp : &PL_sv_undef); |
be6c24e0 |
1540 | /* This makes C<local $tied{foo} = $tied{foo}> possible. |
1541 | * Pushing the magical RHS on to the stack is useless, since |
1542 | * that magic is soon destined to be misled by the local(), |
1543 | * and thus the later pp_sassign() will fail to mg_get() the |
1544 | * old value. This should also cure problems with delayed |
1545 | * mg_get()s. GSAR 98-07-03 */ |
1546 | if (!lval && SvGMAGICAL(sv)) |
1547 | sv = sv_mortalcopy(sv); |
1548 | PUSHs(sv); |
a0d0e21e |
1549 | RETURN; |
1550 | } |
1551 | |
1552 | PP(pp_leave) |
1553 | { |
4e35701f |
1554 | djSP; |
c09156bb |
1555 | register PERL_CONTEXT *cx; |
a0d0e21e |
1556 | register SV **mark; |
1557 | SV **newsp; |
1558 | PMOP *newpm; |
1559 | I32 gimme; |
1560 | |
533c011a |
1561 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e |
1562 | cx = &cxstack[cxstack_ix]; |
3280af22 |
1563 | cx->blk_oldpm = PL_curpm; /* fake block should preserve $1 et al */ |
a0d0e21e |
1564 | } |
1565 | |
1566 | POPBLOCK(cx,newpm); |
1567 | |
533c011a |
1568 | gimme = OP_GIMME(PL_op, -1); |
54310121 |
1569 | if (gimme == -1) { |
1570 | if (cxstack_ix >= 0) |
1571 | gimme = cxstack[cxstack_ix].blk_gimme; |
1572 | else |
1573 | gimme = G_SCALAR; |
1574 | } |
a0d0e21e |
1575 | |
a1f49e72 |
1576 | TAINT_NOT; |
54310121 |
1577 | if (gimme == G_VOID) |
1578 | SP = newsp; |
1579 | else if (gimme == G_SCALAR) { |
1580 | MARK = newsp + 1; |
1581 | if (MARK <= SP) |
1582 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) |
1583 | *MARK = TOPs; |
1584 | else |
1585 | *MARK = sv_mortalcopy(TOPs); |
a0d0e21e |
1586 | else { |
54310121 |
1587 | MEXTEND(mark,0); |
3280af22 |
1588 | *MARK = &PL_sv_undef; |
a0d0e21e |
1589 | } |
54310121 |
1590 | SP = MARK; |
a0d0e21e |
1591 | } |
54310121 |
1592 | else if (gimme == G_ARRAY) { |
a1f49e72 |
1593 | /* in case LEAVE wipes old return values */ |
1594 | for (mark = newsp + 1; mark <= SP; mark++) { |
1595 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) { |
a0d0e21e |
1596 | *mark = sv_mortalcopy(*mark); |
a1f49e72 |
1597 | TAINT_NOT; /* Each item is independent */ |
1598 | } |
1599 | } |
a0d0e21e |
1600 | } |
3280af22 |
1601 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e |
1602 | |
1603 | LEAVE; |
1604 | |
1605 | RETURN; |
1606 | } |
1607 | |
1608 | PP(pp_iter) |
1609 | { |
4e35701f |
1610 | djSP; |
c09156bb |
1611 | register PERL_CONTEXT *cx; |
5f05dabc |
1612 | SV* sv; |
4633a7c4 |
1613 | AV* av; |
1d7c1841 |
1614 | SV **itersvp; |
a0d0e21e |
1615 | |
924508f0 |
1616 | EXTEND(SP, 1); |
a0d0e21e |
1617 | cx = &cxstack[cxstack_ix]; |
6b35e009 |
1618 | if (CxTYPE(cx) != CXt_LOOP) |
cea2e8a9 |
1619 | DIE(aTHX_ "panic: pp_iter"); |
a0d0e21e |
1620 | |
1d7c1841 |
1621 | itersvp = CxITERVAR(cx); |
4633a7c4 |
1622 | av = cx->blk_loop.iterary; |
89ea2908 |
1623 | if (SvTYPE(av) != SVt_PVAV) { |
1624 | /* iterate ($min .. $max) */ |
1625 | if (cx->blk_loop.iterlval) { |
1626 | /* string increment */ |
1627 | register SV* cur = cx->blk_loop.iterlval; |
1628 | STRLEN maxlen; |
1629 | char *max = SvPV((SV*)av, maxlen); |
1630 | if (!SvNIOK(cur) && SvCUR(cur) <= maxlen) { |
eaa5c2d6 |
1631 | #ifndef USE_THREADS /* don't risk potential race */ |
1d7c1841 |
1632 | if (SvREFCNT(*itersvp) == 1 && !SvMAGICAL(*itersvp)) { |
eaa5c2d6 |
1633 | /* safe to reuse old SV */ |
1d7c1841 |
1634 | sv_setsv(*itersvp, cur); |
eaa5c2d6 |
1635 | } |
1636 | else |
1637 | #endif |
1638 | { |
1639 | /* we need a fresh SV every time so that loop body sees a |
1640 | * completely new SV for closures/references to work as |
1641 | * they used to */ |
1d7c1841 |
1642 | SvREFCNT_dec(*itersvp); |
1643 | *itersvp = newSVsv(cur); |
eaa5c2d6 |
1644 | } |
89ea2908 |
1645 | if (strEQ(SvPVX(cur), max)) |
1646 | sv_setiv(cur, 0); /* terminate next time */ |
1647 | else |
1648 | sv_inc(cur); |
1649 | RETPUSHYES; |
1650 | } |
1651 | RETPUSHNO; |
1652 | } |
1653 | /* integer increment */ |
1654 | if (cx->blk_loop.iterix > cx->blk_loop.itermax) |
1655 | RETPUSHNO; |
7f61b687 |
1656 | |
eaa5c2d6 |
1657 | #ifndef USE_THREADS /* don't risk potential race */ |
1d7c1841 |
1658 | if (SvREFCNT(*itersvp) == 1 && !SvMAGICAL(*itersvp)) { |
eaa5c2d6 |
1659 | /* safe to reuse old SV */ |
1d7c1841 |
1660 | sv_setiv(*itersvp, cx->blk_loop.iterix++); |
eaa5c2d6 |
1661 | } |
1662 | else |
1663 | #endif |
1664 | { |
1665 | /* we need a fresh SV every time so that loop body sees a |
1666 | * completely new SV for closures/references to work as they |
1667 | * used to */ |
1d7c1841 |
1668 | SvREFCNT_dec(*itersvp); |
1669 | *itersvp = newSViv(cx->blk_loop.iterix++); |
eaa5c2d6 |
1670 | } |
89ea2908 |
1671 | RETPUSHYES; |
1672 | } |
1673 | |
1674 | /* iterate array */ |
3280af22 |
1675 | if (cx->blk_loop.iterix >= (av == PL_curstack ? cx->blk_oldsp : AvFILL(av))) |
4633a7c4 |
1676 | RETPUSHNO; |
a0d0e21e |
1677 | |
1d7c1841 |
1678 | SvREFCNT_dec(*itersvp); |
a0d0e21e |
1679 | |
155aba94 |
1680 | if ((sv = SvMAGICAL(av) |
1681 | ? *av_fetch(av, ++cx->blk_loop.iterix, FALSE) |
1682 | : AvARRAY(av)[++cx->blk_loop.iterix])) |
a0d0e21e |
1683 | SvTEMP_off(sv); |
a0d0e21e |
1684 | else |
3280af22 |
1685 | sv = &PL_sv_undef; |
1686 | if (av != PL_curstack && SvIMMORTAL(sv)) { |
5f05dabc |
1687 | SV *lv = cx->blk_loop.iterlval; |
71be2cbc |
1688 | if (lv && SvREFCNT(lv) > 1) { |
1689 | SvREFCNT_dec(lv); |
1690 | lv = Nullsv; |
1691 | } |
5f05dabc |
1692 | if (lv) |
1693 | SvREFCNT_dec(LvTARG(lv)); |
1694 | else { |
68dc0745 |
1695 | lv = cx->blk_loop.iterlval = NEWSV(26, 0); |
5f05dabc |
1696 | sv_upgrade(lv, SVt_PVLV); |
5f05dabc |
1697 | LvTYPE(lv) = 'y'; |
68dc0745 |
1698 | sv_magic(lv, Nullsv, 'y', Nullch, 0); |
5f05dabc |
1699 | } |
1700 | LvTARG(lv) = SvREFCNT_inc(av); |
1701 | LvTARGOFF(lv) = cx->blk_loop.iterix; |
42718184 |
1702 | LvTARGLEN(lv) = (STRLEN)UV_MAX; |
5f05dabc |
1703 | sv = (SV*)lv; |
1704 | } |
a0d0e21e |
1705 | |
1d7c1841 |
1706 | *itersvp = SvREFCNT_inc(sv); |
a0d0e21e |
1707 | RETPUSHYES; |
1708 | } |
1709 | |
1710 | PP(pp_subst) |
1711 | { |
4e35701f |
1712 | djSP; dTARG; |
a0d0e21e |
1713 | register PMOP *pm = cPMOP; |
1714 | PMOP *rpm = pm; |
1715 | register SV *dstr; |
1716 | register char *s; |
1717 | char *strend; |
1718 | register char *m; |
1719 | char *c; |
1720 | register char *d; |
1721 | STRLEN clen; |
1722 | I32 iters = 0; |
1723 | I32 maxiters; |
1724 | register I32 i; |
1725 | bool once; |
71be2cbc |
1726 | bool rxtainted; |
a0d0e21e |
1727 | char *orig; |
22e551b9 |
1728 | I32 r_flags; |
d9f97599 |
1729 | register REGEXP *rx = pm->op_pmregexp; |
a0d0e21e |
1730 | STRLEN len; |
1731 | int force_on_match = 0; |
3280af22 |
1732 | I32 oldsave = PL_savestack_ix; |
a0d0e21e |
1733 | |
5cd24f17 |
1734 | /* known replacement string? */ |
1735 | dstr = (pm->op_pmflags & PMf_CONST) ? POPs : Nullsv; |
533c011a |
1736 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e |
1737 | TARG = POPs; |
1738 | else { |
54b9620d |
1739 | TARG = DEFSV; |
a0d0e21e |
1740 | EXTEND(SP,1); |
8ec5e241 |
1741 | } |
68dc0745 |
1742 | if (SvREADONLY(TARG) |
1743 | || (SvTYPE(TARG) > SVt_PVLV |
1744 | && !(SvTYPE(TARG) == SVt_PVGV && SvFAKE(TARG)))) |
d470f89e |
1745 | DIE(aTHX_ PL_no_modify); |
8ec5e241 |
1746 | PUTBACK; |
1747 | |
a0d0e21e |
1748 | s = SvPV(TARG, len); |
68dc0745 |
1749 | if (!SvPOKp(TARG) || SvTYPE(TARG) == SVt_PVGV) |
a0d0e21e |
1750 | force_on_match = 1; |
b3eb6a9b |
1751 | rxtainted = ((pm->op_pmdynflags & PMdf_TAINTED) || |
3280af22 |
1752 | (PL_tainted && (pm->op_pmflags & PMf_RETAINT))); |
1753 | if (PL_tainted) |
b3eb6a9b |
1754 | rxtainted |= 2; |
9212bbba |
1755 | TAINT_NOT; |
a0d0e21e |
1756 | |
1757 | force_it: |
1758 | if (!pm || !s) |
cea2e8a9 |
1759 | DIE(aTHX_ "panic: do_subst"); |
a0d0e21e |
1760 | |
1761 | strend = s + len; |
2beec16e |
1762 | maxiters = 2*(strend - s) + 10; /* We can match twice at each |
1763 | position, once with zero-length, |
1764 | second time with non-zero. */ |
a0d0e21e |
1765 | |
3280af22 |
1766 | if (!rx->prelen && PL_curpm) { |
1767 | pm = PL_curpm; |
d9f97599 |
1768 | rx = pm->op_pmregexp; |
a0d0e21e |
1769 | } |
22e551b9 |
1770 | r_flags = (rx->nparens || SvTEMP(TARG) || PL_sawampersand) |
9d080a66 |
1771 | ? REXEC_COPY_STR : 0; |
f722798b |
1772 | if (SvSCREAM(TARG)) |
22e551b9 |
1773 | r_flags |= REXEC_SCREAM; |
a0d0e21e |
1774 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
3280af22 |
1775 | SAVEINT(PL_multiline); |
1776 | PL_multiline = pm->op_pmflags & PMf_MULTILINE; |
a0d0e21e |
1777 | } |
1778 | orig = m = s; |
f722798b |
1779 | if (rx->reganch & RE_USE_INTUIT) { |
1780 | s = CALLREG_INTUIT_START(aTHX_ rx, TARG, s, strend, r_flags, NULL); |
1781 | |
1782 | if (!s) |
1783 | goto nope; |
1784 | /* How to do it in subst? */ |
1785 | /* if ( (rx->reganch & ROPT_CHECK_ALL) |
1786 | && !PL_sawampersand |
1787 | && ((rx->reganch & ROPT_NOSCAN) |
1788 | || !((rx->reganch & RE_INTUIT_TAIL) |
1789 | && (r_flags & REXEC_SCREAM)))) |
1790 | goto yup; |
1791 | */ |
a0d0e21e |
1792 | } |
71be2cbc |
1793 | |
1794 | /* only replace once? */ |
a0d0e21e |
1795 | once = !(rpm->op_pmflags & PMf_GLOBAL); |
71be2cbc |
1796 | |
1797 | /* known replacement string? */ |
5cd24f17 |
1798 | c = dstr ? SvPV(dstr, clen) : Nullch; |
71be2cbc |
1799 | |
1800 | /* can do inplace substitution? */ |
22e551b9 |
1801 | if (c && clen <= rx->minlen && (once || !(r_flags & REXEC_COPY_STR)) |
d9f97599 |
1802 | && !(rx->reganch & ROPT_LOOKBEHIND_SEEN)) { |
f722798b |
1803 | if (!CALLREGEXEC(aTHX_ rx, s, strend, orig, 0, TARG, NULL, |
1804 | r_flags | REXEC_CHECKED)) |
1805 | { |
8ec5e241 |
1806 | SPAGAIN; |
3280af22 |
1807 | PUSHs(&PL_sv_no); |
71be2cbc |
1808 | LEAVE_SCOPE(oldsave); |
1809 | RETURN; |
1810 | } |
1811 | if (force_on_match) { |
1812 | force_on_match = 0; |
1813 | s = SvPV_force(TARG, len); |
1814 | goto force_it; |
1815 | } |
71be2cbc |
1816 | d = s; |
3280af22 |
1817 | PL_curpm = pm; |
71be2cbc |
1818 | SvSCREAM_off(TARG); /* disable possible screamer */ |
1819 | if (once) { |
48c036b1 |
1820 | rxtainted |= RX_MATCH_TAINTED(rx); |
cf93c79d |
1821 | m = orig + rx->startp[0]; |
1822 | d = orig + rx->endp[0]; |
71be2cbc |
1823 | s = orig; |
1824 | if (m - s > strend - d) { /* faster to shorten from end */ |
1825 | if (clen) { |
1826 | Copy(c, m, clen, char); |
1827 | m += clen; |
a0d0e21e |
1828 | } |
71be2cbc |
1829 | i = strend - d; |
1830 | if (i > 0) { |
1831 | Move(d, m, i, char); |
1832 | m += i; |
a0d0e21e |
1833 | } |
71be2cbc |
1834 | *m = '\0'; |
1835 | SvCUR_set(TARG, m - s); |
1836 | } |
1837 | /*SUPPRESS 560*/ |
155aba94 |
1838 | else if ((i = m - s)) { /* faster from front */ |
71be2cbc |
1839 | d -= clen; |
1840 | m = d; |
1841 | sv_chop(TARG, d-i); |
1842 | s += i; |
1843 | while (i--) |
1844 | *--d = *--s; |
1845 | if (clen) |
1846 | Copy(c, m, clen, char); |
1847 | } |
1848 | else if (clen) { |
1849 | d -= clen; |
1850 | sv_chop(TARG, d); |
1851 | Copy(c, d, clen, char); |
1852 | } |
1853 | else { |
1854 | sv_chop(TARG, d); |
1855 | } |
48c036b1 |
1856 | TAINT_IF(rxtainted & 1); |
8ec5e241 |
1857 | SPAGAIN; |
3280af22 |
1858 | PUSHs(&PL_sv_yes); |
71be2cbc |
1859 | } |
1860 | else { |
71be2cbc |
1861 | do { |
1862 | if (iters++ > maxiters) |
cea2e8a9 |
1863 | DIE(aTHX_ "Substitution loop"); |
d9f97599 |
1864 | rxtainted |= RX_MATCH_TAINTED(rx); |
cf93c79d |
1865 | m = rx->startp[0] + orig; |
71be2cbc |
1866 | /*SUPPRESS 560*/ |
155aba94 |
1867 | if ((i = m - s)) { |
71be2cbc |
1868 | if (s != d) |
1869 | Move(s, d, i, char); |
1870 | d += i; |
a0d0e21e |
1871 | } |
71be2cbc |
1872 | if (clen) { |
1873 | Copy(c, d, clen, char); |
1874 | d += clen; |
1875 | } |
cf93c79d |
1876 | s = rx->endp[0] + orig; |
cea2e8a9 |
1877 | } while (CALLREGEXEC(aTHX_ rx, s, strend, orig, s == m, |
f722798b |
1878 | TARG, NULL, |
1879 | /* don't match same null twice */ |
1880 | REXEC_NOT_FIRST|REXEC_IGNOREPOS)); |
71be2cbc |
1881 | if (s != d) { |
1882 | i = strend - s; |
1883 | SvCUR_set(TARG, d - SvPVX(TARG) + i); |
1884 | Move(s, d, i+1, char); /* include the NUL */ |
a0d0e21e |
1885 | } |
48c036b1 |
1886 | TAINT_IF(rxtainted & 1); |
8ec5e241 |
1887 | SPAGAIN; |
71be2cbc |
1888 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
a0d0e21e |
1889 | } |
71be2cbc |
1890 | (void)SvPOK_only(TARG); |
48c036b1 |
1891 | TAINT_IF(rxtainted); |
8ec5e241 |
1892 | if (SvSMAGICAL(TARG)) { |
1893 | PUTBACK; |
1894 | mg_set(TARG); |
1895 | SPAGAIN; |
1896 | } |
9212bbba |
1897 | SvTAINT(TARG); |
71be2cbc |
1898 | LEAVE_SCOPE(oldsave); |
1899 | RETURN; |
a0d0e21e |
1900 | } |
71be2cbc |
1901 | |
f722798b |
1902 | if (CALLREGEXEC(aTHX_ rx, s, strend, orig, 0, TARG, NULL, |
1903 | r_flags | REXEC_CHECKED)) |
1904 | { |
a0d0e21e |
1905 | if (force_on_match) { |
1906 | force_on_match = 0; |
1907 | s = SvPV_force(TARG, len); |
1908 | goto force_it; |
1909 | } |
48c036b1 |
1910 | rxtainted |= RX_MATCH_TAINTED(rx); |
8ec5e241 |
1911 | dstr = NEWSV(25, len); |
a0d0e21e |
1912 | sv_setpvn(dstr, m, s-m); |
3280af22 |
1913 | PL_curpm = pm; |
a0d0e21e |
1914 | if (!c) { |
c09156bb |
1915 | register PERL_CONTEXT *cx; |
8ec5e241 |
1916 | SPAGAIN; |
a0d0e21e |
1917 | PUSHSUBST(cx); |
1918 | RETURNOP(cPMOP->op_pmreplroot); |
1919 | } |
cf93c79d |
1920 | r_flags |= REXEC_IGNOREPOS | REXEC_NOT_FIRST; |
a0d0e21e |
1921 | do { |
1922 | if (iters++ > maxiters) |
cea2e8a9 |
1923 | DIE(aTHX_ "Substitution loop"); |
d9f97599 |
1924 | rxtainted |= RX_MATCH_TAINTED(rx); |
cf93c79d |
1925 | if (RX_MATCH_COPIED(rx) && rx->subbeg != orig) { |
a0d0e21e |
1926 | m = s; |
1927 | s = orig; |
cf93c79d |
1928 | orig = rx->subbeg; |
a0d0e21e |
1929 | s = orig + (m - s); |
1930 | strend = s + (strend - m); |
1931 | } |
cf93c79d |
1932 | m = rx->startp[0] + orig; |
a0d0e21e |
1933 | sv_catpvn(dstr, s, m-s); |
cf93c79d |
1934 | s = rx->endp[0] + orig; |
a0d0e21e |
1935 | if (clen) |
1936 | sv_catpvn(dstr, c, clen); |
1937 | if (once) |
1938 | break; |
cea2e8a9 |
1939 | } while (CALLREGEXEC(aTHX_ rx, s, strend, orig, s == m, TARG, NULL, r_flags)); |
a0d0e21e |
1940 | sv_catpvn(dstr, s, strend - s); |
748a9306 |
1941 | |
4633a7c4 |
1942 | (void)SvOOK_off(TARG); |
cb0b1708 |
1943 | Safefree(SvPVX(TARG)); |
748a9306 |
1944 | SvPVX(TARG) = SvPVX(dstr); |
1945 | SvCUR_set(TARG, SvCUR(dstr)); |
1946 | SvLEN_set(TARG, SvLEN(dstr)); |
1947 | SvPVX(dstr) = 0; |
1948 | sv_free(dstr); |
1949 | |
48c036b1 |
1950 | TAINT_IF(rxtainted & 1); |
f878fbec |
1951 | SPAGAIN; |
48c036b1 |
1952 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
1953 | |
a0d0e21e |
1954 | (void)SvPOK_only(TARG); |
48c036b1 |
1955 | TAINT_IF(rxtainted); |
a0d0e21e |
1956 | SvSETMAGIC(TARG); |
9212bbba |
1957 | SvTAINT(TARG); |
4633a7c4 |
1958 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1959 | RETURN; |
1960 | } |
5cd24f17 |
1961 | goto ret_no; |
a0d0e21e |
1962 | |
1963 | nope: |
8ec5e241 |
1964 | ret_no: |
1965 | SPAGAIN; |
3280af22 |
1966 | PUSHs(&PL_sv_no); |
4633a7c4 |
1967 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1968 | RETURN; |
1969 | } |
1970 | |
1971 | PP(pp_grepwhile) |
1972 | { |
4e35701f |
1973 | djSP; |
a0d0e21e |
1974 | |
1975 | if (SvTRUEx(POPs)) |
3280af22 |
1976 | PL_stack_base[PL_markstack_ptr[-1]++] = PL_stack_base[*PL_markstack_ptr]; |
1977 | ++*PL_markstack_ptr; |
a0d0e21e |
1978 | LEAVE; /* exit inner scope */ |
1979 | |
1980 | /* All done yet? */ |
3280af22 |
1981 | if (PL_stack_base + *PL_markstack_ptr > SP) { |
a0d0e21e |
1982 | I32 items; |
54310121 |
1983 | I32 gimme = GIMME_V; |
a0d0e21e |
1984 | |
1985 | LEAVE; /* exit outer scope */ |
1986 | (void)POPMARK; /* pop src */ |
3280af22 |
1987 | items = --*PL_markstack_ptr - PL_markstack_ptr[-1]; |
a0d0e21e |
1988 | (void)POPMARK; /* pop dst */ |
3280af22 |
1989 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
54310121 |
1990 | if (gimme == G_SCALAR) { |
a0d0e21e |
1991 | dTARGET; |
1992 | XPUSHi(items); |
a0d0e21e |
1993 | } |
54310121 |
1994 | else if (gimme == G_ARRAY) |
1995 | SP += items; |
a0d0e21e |
1996 | RETURN; |
1997 | } |
1998 | else { |
1999 | SV *src; |
2000 | |
2001 | ENTER; /* enter inner scope */ |
1d7c1841 |
2002 | SAVEVPTR(PL_curpm); |
a0d0e21e |
2003 | |
3280af22 |
2004 | src = PL_stack_base[*PL_markstack_ptr]; |
a0d0e21e |
2005 | SvTEMP_off(src); |
54b9620d |
2006 | DEFSV = src; |
a0d0e21e |
2007 | |
2008 | RETURNOP(cLOGOP->op_other); |
2009 | } |
2010 | } |
2011 | |
2012 | PP(pp_leavesub) |
2013 | { |
4e35701f |
2014 | djSP; |
a0d0e21e |
2015 | SV **mark; |
2016 | SV **newsp; |
2017 | PMOP *newpm; |
2018 | I32 gimme; |
c09156bb |
2019 | register PERL_CONTEXT *cx; |
b0d9ce38 |
2020 | SV *sv; |
a0d0e21e |
2021 | |
2022 | POPBLOCK(cx,newpm); |
f86702cc |
2023 | |
a1f49e72 |
2024 | TAINT_NOT; |
a0d0e21e |
2025 | if (gimme == G_SCALAR) { |
2026 | MARK = newsp + 1; |
a29cdaf0 |
2027 | if (MARK <= SP) { |
a8bba7fa |
2028 | if (cx->blk_sub.cv && CvDEPTH(cx->blk_sub.cv) > 1) { |
a29cdaf0 |
2029 | if (SvTEMP(TOPs)) { |
2030 | *MARK = SvREFCNT_inc(TOPs); |
2031 | FREETMPS; |
2032 | sv_2mortal(*MARK); |
cd06dffe |
2033 | } |
2034 | else { |
959e3673 |
2035 | sv = SvREFCNT_inc(TOPs); /* FREETMPS could clobber it */ |
a29cdaf0 |
2036 | FREETMPS; |
959e3673 |
2037 | *MARK = sv_mortalcopy(sv); |
2038 | SvREFCNT_dec(sv); |
a29cdaf0 |
2039 | } |
cd06dffe |
2040 | } |
2041 | else |
a29cdaf0 |
2042 | *MARK = SvTEMP(TOPs) ? TOPs : sv_mortalcopy(TOPs); |
cd06dffe |
2043 | } |
2044 | else { |
f86702cc |
2045 | MEXTEND(MARK, 0); |
3280af22 |
2046 | *MARK = &PL_sv_undef; |
a0d0e21e |
2047 | } |
2048 | SP = MARK; |
2049 | } |
54310121 |
2050 | else if (gimme == G_ARRAY) { |
f86702cc |
2051 | for (MARK = newsp + 1; MARK <= SP; MARK++) { |
a1f49e72 |
2052 | if (!SvTEMP(*MARK)) { |
f86702cc |
2053 | *MARK = sv_mortalcopy(*MARK); |
a1f49e72 |
2054 | TAINT_NOT; /* Each item is independent */ |
2055 | } |
f86702cc |
2056 | } |
a0d0e21e |
2057 | } |
f86702cc |
2058 | PUTBACK; |
2059 | |
b0d9ce38 |
2060 | POPSUB(cx,sv); /* Stack values are safe: release CV and @_ ... */ |
3280af22 |
2061 | PL_curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e |
2062 | |
2063 | LEAVE; |
b0d9ce38 |
2064 | LEAVESUB(sv); |
a0d0e21e |
2065 | return pop_return(); |
2066 | } |
2067 | |
cd06dffe |
2068 | /* This duplicates the above code because the above code must not |
2069 | * get any slower by more conditions */ |
2070 | PP(pp_leavesublv) |
2071 | { |
2072 | djSP; |
2073 | SV **mark; |
2074 | SV **newsp; |
2075 | PMOP *newpm; |
2076 | I32 gimme; |
2077 | register PERL_CONTEXT *cx; |
b0d9ce38 |
2078 | SV *sv; |
cd06dffe |
2079 | |
2080 | POPBLOCK(cx,newpm); |
cd06dffe |
2081 | |
2082 | TAINT_NOT; |
2083 | |
2084 | if (cx->blk_sub.lval & OPpENTERSUB_INARGS) { |
2085 | /* We are an argument to a function or grep(). |
2086 | * This kind of lvalueness was legal before lvalue |
2087 | * subroutines too, so be backward compatible: |
2088 | * cannot report errors. */ |
2089 | |
2090 | /* Scalar context *is* possible, on the LHS of -> only, |
2091 | * as in f()->meth(). But this is not an lvalue. */ |
2092 | if (gimme == G_SCALAR) |
2093 | goto temporise; |
2094 | if (gimme == G_ARRAY) { |
a8bba7fa |
2095 | if (!CvLVALUE(cx->blk_sub.cv)) |
cd06dffe |
2096 | goto temporise_array; |
2097 | EXTEND_MORTAL(SP - newsp); |
2098 | for (mark = newsp + 1; mark <= SP; mark++) { |
2099 | if (SvTEMP(*mark)) |
2100 | /* empty */ ; |
2101 | else if (SvFLAGS(*mark) & (SVs_PADTMP | SVf_READONLY)) |
2102 | *mark = sv_mortalcopy(*mark); |
2103 | else { |
2104 | /* Can be a localized value subject to deletion. */ |
2105 | PL_tmps_stack[++PL_tmps_ix] = *mark; |
e1f15930 |
2106 | (void)SvREFCNT_inc(*mark); |
cd06dffe |
2107 | } |
2108 | } |
2109 | } |
2110 | } |
2111 | else if (cx->blk_sub.lval) { /* Leave it as it is if we can. */ |
2112 | /* Here we go for robustness, not for speed, so we change all |
2113 | * the refcounts so the caller gets a live guy. Cannot set |
2114 | * TEMP, so sv_2mortal is out of question. */ |
a8bba7fa |
2115 | if (!CvLVALUE(cx->blk_sub.cv)) { |
b0d9ce38 |
2116 | POPSUB(cx,sv); |
d470f89e |
2117 | PL_curpm = newpm; |
b0d9ce38 |
2118 | LEAVE; |
2119 | LEAVESUB(sv); |
d470f89e |
2120 | DIE(aTHX_ "Can't modify non-lvalue subroutine call"); |
2121 | } |
cd06dffe |
2122 | if (gimme == G_SCALAR) { |
2123 | MARK = newsp + 1; |
2124 | EXTEND_MORTAL(1); |
2125 | if (MARK == SP) { |
d470f89e |
2126 | if (SvFLAGS(TOPs) & (SVs_TEMP | SVs_PADTMP | SVf_READONLY)) { |
b0d9ce38 |
2127 | POPSUB(cx,sv); |
d470f89e |
2128 | PL_curpm = newpm; |
b0d9ce38 |
2129 | LEAVE; |
2130 | LEAVESUB(sv); |
d470f89e |
2131 | DIE(aTHX_ "Can't return a %s from lvalue subroutine", |
cd06dffe |
2132 | SvREADONLY(TOPs) ? "readonly value" : "temporary"); |
d470f89e |
2133 | } |
cd06dffe |
2134 | else { /* Can be a localized value |
2135 | * subject to deletion. */ |
2136 | PL_tmps_stack[++PL_tmps_ix] = *mark; |
e1f15930 |
2137 | (void)SvREFCNT_inc(*mark); |
cd06dffe |
2138 | } |
2139 | } |
d470f89e |
2140 | else { /* Should not happen? */ |
b0d9ce38 |
2141 | POPSUB(cx,sv); |
d470f89e |
2142 | PL_curpm = newpm; |
b0d9ce38 |
2143 | LEAVE; |
2144 | LEAVESUB(sv); |
d470f89e |
2145 | DIE(aTHX_ "%s returned from lvalue subroutine in scalar context", |
cd06dffe |
2146 | (MARK > SP ? "Empty array" : "Array")); |
d470f89e |
2147 | } |
cd06dffe |
2148 | SP = MARK; |
2149 | } |
2150 | else if (gimme == G_ARRAY) { |
2151 | EXTEND_MORTAL(SP - newsp); |
2152 | for (mark = newsp + 1; mark <= SP; mark++) { |
d470f89e |
2153 | if (SvFLAGS(*mark) & (SVs_TEMP | SVs_PADTMP | SVf_READONLY)) { |
2154 | /* Might be flattened array after $#array = */ |
2155 | PUTBACK; |
b0d9ce38 |
2156 | POPSUB(cx,sv); |
d470f89e |
2157 | PL_curpm = newpm; |
b0d9ce38 |
2158 | LEAVE; |
2159 | LEAVESUB(sv); |
d470f89e |
2160 | DIE(aTHX_ "Can't return %s from lvalue subroutine", |
cd06dffe |
2161 | (*mark != &PL_sv_undef) |
2162 | ? (SvREADONLY(TOPs) |
2163 | ? "a readonly value" : "a temporary") |
2164 | : "an uninitialized value"); |
d470f89e |
2165 | } |
cd06dffe |
2166 | else { |
cd06dffe |
2167 | /* Can be a localized value subject to deletion. */ |
2168 | PL_tmps_stack[++PL_tmps_ix] = *mark; |
e1f15930 |
2169 | (void)SvREFCNT_inc(*mark); |
cd06dffe |
2170 | } |
2171 | } |
2172 | } |
2173 | } |
2174 | else { |
2175 | if (gimme == G_SCALAR) { |
2176 | temporise: |
2177 | MARK = newsp + 1; |
2178 | if (MARK <= SP) { |
a8bba7fa |
2179 | if (cx->blk_sub.cv && CvDEPTH(cx->blk_sub.cv) > 1) { |
cd06dffe |
2180 | if (SvTEMP(TOPs)) { |
2181 | *MARK = SvREFCNT_inc(TOPs); |
2182 | FREETMPS; |
2183 | sv_2mortal(*MARK); |
2184 | } |
2185 | else { |
959e3673 |
2186 | sv = SvREFCNT_inc(TOPs); /* FREETMPS could clobber it */ |
cd06dffe |
2187 | FREETMPS; |
959e3673 |
2188 | *MARK = sv_mortalcopy(sv); |
2189 | SvREFCNT_dec(sv); |
cd06dffe |
2190 | } |
2191 | } |
2192 | else |
2193 | *MARK = SvTEMP(TOPs) ? TOPs : sv_mortalcopy(TOPs); |
2194 | } |
2195 | else { |
2196 | MEXTEND(MARK, 0); |
2197 | *MARK = &PL_sv_undef; |
2198 | } |
2199 | SP = MARK; |
2200 | } |
2201 | else if (gimme == G_ARRAY) { |
2202 | temporise_array: |
2203 | for (MARK = newsp + 1; MARK <= SP; MARK++) { |
2204 | if (!SvTEMP(*MARK)) { |
2205 | *MARK = sv_mortalcopy(*MARK); |
2206 | TAINT_NOT; /* Each item is independent */ |
2207 | } |
2208 | } |
2209 | } |
2210 | } |
2211 | PUTBACK; |
2212 | |
b0d9ce38 |
2213 | POPSUB(cx,sv); /* Stack values are safe: release CV and @_ ... */ |
cd06dffe |
2214 | PL_curpm = newpm; /* ... and pop $1 et al */ |
2215 | |
2216 | LEAVE; |
b0d9ce38 |
2217 | LEAVESUB(sv); |
cd06dffe |
2218 | return pop_return(); |
2219 | } |
2220 | |
2221 | |
76e3520e |
2222 | STATIC CV * |
cea2e8a9 |
2223 | S_get_db_sub(pTHX_ SV **svp, CV *cv) |
3de9ffa1 |
2224 | { |
2225 | dTHR; |
3280af22 |
2226 | SV *dbsv = GvSV(PL_DBsub); |
491527d0 |
2227 | |
2228 | if (!PERLDB_SUB_NN) { |
2229 | GV *gv = CvGV(cv); |
2230 | |
2231 | save_item(dbsv); |
2232 | if ( (CvFLAGS(cv) & (CVf_ANON | CVf_CLONED)) |
2233 | || strEQ(GvNAME(gv), "END") |
2234 | || ((GvCV(gv) != cv) && /* Could be imported, and old sub redefined. */ |
2235 | !( (SvTYPE(*svp) == SVt_PVGV) && (GvCV((GV*)*svp) == cv) |
2236 | && (gv = (GV*)*svp) ))) { |
2237 | /* Use GV from the stack as a fallback. */ |
2238 | /* GV is potentially non-unique, or contain different CV. */ |
2239 | sv_setsv(dbsv, newRV((SV*)cv)); |
2240 | } |
2241 | else { |
2242 | gv_efullname3(dbsv, gv, Nullch); |
2243 | } |
3de9ffa1 |
2244 | } |
2245 | else { |
155aba94 |
2246 | (void)SvUPGRADE(dbsv, SVt_PVIV); |
2247 | (void)SvIOK_on(dbsv); |
491527d0 |
2248 | SAVEIV(SvIVX(dbsv)); |
5bc28da9 |
2249 | SvIVX(dbsv) = PTR2IV(cv); /* Do it the quickest way */ |
3de9ffa1 |
2250 | } |
491527d0 |
2251 | |
3de9ffa1 |
2252 | if (CvXSUB(cv)) |
3280af22 |
2253 | PL_curcopdb = PL_curcop; |
2254 | cv = GvCV(PL_DBsub); |
3de9ffa1 |
2255 | return cv; |
2256 | } |
2257 | |
a0d0e21e |
2258 | PP(pp_entersub) |
2259 | { |
4e35701f |
2260 | djSP; dPOPss; |
a0d0e21e |
2261 | GV *gv; |
2262 | HV *stash; |
2263 | register CV *cv; |
c09156bb |
2264 | register PERL_CONTEXT *cx; |
5d94fbed |
2265 | I32 gimme; |
533c011a |
2266 | bool hasargs = (PL_op->op_flags & OPf_STACKED) != 0; |
a0d0e21e |
2267 | |
2268 | if (!sv) |
cea2e8a9 |
2269 | DIE(aTHX_ "Not a CODE reference"); |
a0d0e21e |
2270 | switch (SvTYPE(sv)) { |
2271 | default: |
2272 | if (!SvROK(sv)) { |
748a9306 |
2273 | char *sym; |
2d8e6c8d |
2274 | STRLEN n_a; |
748a9306 |
2275 | |
3280af22 |
2276 | if (sv == &PL_sv_yes) { /* unfound import, ignore */ |
fb73857a |
2277 | if (hasargs) |
3280af22 |
2278 | SP = PL_stack_base + POPMARK; |
a0d0e21e |
2279 | RETURN; |
fb73857a |
2280 | } |
15ff848f |
2281 | if (SvGMAGICAL(sv)) { |
2282 | mg_get(sv); |
2283 | sym = SvPOKp(sv) ? SvPVX(sv) : Nullch; |
2284 | } |
2285 | else |
2d8e6c8d |
2286 | sym = SvPV(sv, n_a); |
15ff848f |
2287 | if (!sym) |
cea2e8a9 |
2288 | DIE(aTHX_ PL_no_usym, "a subroutine"); |
533c011a |
2289 | if (PL_op->op_private & HINT_STRICT_REFS) |
cea2e8a9 |
2290 | DIE(aTHX_ PL_no_symref, sym, "a subroutine"); |
864dbfa3 |
2291 | cv = get_cv(sym, TRUE); |
a0d0e21e |
2292 | break; |
2293 | } |
f5284f61 |
2294 | { |
2295 | SV **sp = &sv; /* Used in tryAMAGICunDEREF macro. */ |
2296 | tryAMAGICunDEREF(to_cv); |
2297 | } |
a0d0e21e |
2298 | cv = (CV*)SvRV(sv); |
2299 | if (SvTYPE(cv) == SVt_PVCV) |
2300 | break; |
2301 | /* FALL THROUGH */ |
2302 | case SVt_PVHV: |
2303 | case SVt_PVAV: |
cea2e8a9 |
2304 | DIE(aTHX_ "Not a CODE reference"); |
a0d0e21e |
2305 | case SVt_PVCV: |
2306 | cv = (CV*)sv; |
2307 | break; |
2308 | case SVt_PVGV: |
8ebc5c01 |
2309 | if (!(cv = GvCVu((GV*)sv))) |
f6ec51f7 |
2310 | cv = sv_2cv(sv, &stash, &gv, FALSE); |
2311 | if (!cv) { |
2312 | ENTER; |
2313 | SAVETMPS; |
2314 | goto try_autoload; |
2315 | } |
2316 | break; |
a0d0e21e |
2317 | } |
2318 | |
2319 | ENTER; |
2320 | SAVETMPS; |
2321 | |
2322 | retry: |
a0d0e21e |
2323 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
44a8e56a |
2324 | GV* autogv; |
22239a37 |
2325 | SV* sub_name; |
44a8e56a |
2326 | |
2327 | /* anonymous or undef'd function leaves us no recourse */ |
2328 | if (CvANON(cv) || !(gv = CvGV(cv))) |
cea2e8a9 |
2329 | DIE(aTHX_ "Undefined subroutine called"); |
67caa1fe |
2330 | |
44a8e56a |
2331 | /* autoloaded stub? */ |
2332 | if (cv != GvCV(gv)) { |
2333 | cv = GvCV(gv); |
a0d0e21e |
2334 | } |
44a8e56a |
2335 | /* should call AUTOLOAD now? */ |
67caa1fe |
2336 | else { |
f6ec51f7 |
2337 | try_autoload: |
2338 | if ((autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), |
2339 | FALSE))) |
2340 | { |
2341 | cv = GvCV(autogv); |
2342 | } |
2343 | /* sorry */ |
2344 | else { |
2345 | sub_name = sv_newmortal(); |
2346 | gv_efullname3(sub_name, gv, Nullch); |
cea2e8a9 |
2347 | DIE(aTHX_ "Undefined subroutine &%s called", SvPVX(sub_name)); |
f6ec51f7 |
2348 | } |
67caa1fe |
2349 | } |
2350 | if (!cv) |
cea2e8a9 |
2351 | DIE(aTHX_ "Not a CODE reference"); |
67caa1fe |
2352 | goto retry; |
a0d0e21e |
2353 | } |
2354 | |
54310121 |
2355 | gimme = GIMME_V; |
67caa1fe |
2356 | if ((PL_op->op_private & OPpENTERSUB_DB) && GvCV(PL_DBsub) && !CvNODEBUG(cv)) { |
4f01c5a5 |
2357 | cv = get_db_sub(&sv, cv); |
67caa1fe |
2358 | if (!cv) |
cea2e8a9 |
2359 | DIE(aTHX_ "No DBsub routine"); |
67caa1fe |
2360 | } |
a0d0e21e |
2361 | |
11343788 |
2362 | #ifdef USE_THREADS |
3de9ffa1 |
2363 | /* |
2364 | * First we need to check if the sub or method requires locking. |
458fb581 |
2365 | * If so, we gain a lock on the CV, the first argument or the |
2366 | * stash (for static methods), as appropriate. This has to be |
2367 | * inline because for FAKE_THREADS, COND_WAIT inlines code to |
2368 | * reschedule by returning a new op. |
3de9ffa1 |
2369 | */ |
11343788 |
2370 | MUTEX_LOCK(CvMUTEXP(cv)); |
77a005ab |
2371 | if (CvFLAGS(cv) & CVf_LOCKED) { |
2372 | MAGIC *mg; |
2373 | if (CvFLAGS(cv) & CVf_METHOD) { |
533c011a |
2374 | if (SP > PL_stack_base + TOPMARK) |
2375 | sv = *(PL_stack_base + TOPMARK + 1); |
77a005ab |
2376 | else { |
13e08037 |
2377 | AV *av = (AV*)PL_curpad[0]; |
2378 | if (hasargs || !av || AvFILLp(av) < 0 |
2379 | || !(sv = AvARRAY(av)[0])) |
2380 | { |
2381 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
d470f89e |
2382 | DIE(aTHX_ "no argument for locked method call"); |
13e08037 |
2383 | } |
77a005ab |
2384 | } |
2385 | if (SvROK(sv)) |
2386 | sv = SvRV(sv); |
458fb581 |
2387 | else { |
2388 | STRLEN len; |
2389 | char *stashname = SvPV(sv, len); |
2390 | sv = (SV*)gv_stashpvn(stashname, len, TRUE); |
2391 | } |
77a005ab |
2392 | } |
2393 | else { |
2394 | sv = (SV*)cv; |
2395 | } |
2396 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
2397 | mg = condpair_magic(sv); |
2398 | MUTEX_LOCK(MgMUTEXP(mg)); |
2399 | if (MgOWNER(mg) == thr) |
2400 | MUTEX_UNLOCK(MgMUTEXP(mg)); |
2401 | else { |
2402 | while (MgOWNER(mg)) |
2403 | COND_WAIT(MgOWNERCONDP(mg), MgMUTEXP(mg)); |
2404 | MgOWNER(mg) = thr; |
bf49b057 |
2405 | DEBUG_S(PerlIO_printf(Perl_debug_log, "%p: pp_entersub lock %p\n", |
1fd28e87 |
2406 | thr, sv);) |
77a005ab |
2407 | MUTEX_UNLOCK(MgMUTEXP(mg)); |
c76ac1ee |
2408 | SAVEDESTRUCTOR_X(Perl_unlock_condpair, sv); |
11343788 |
2409 | } |
77a005ab |
2410 | MUTEX_LOCK(CvMUTEXP(cv)); |
11343788 |
2411 | } |
3de9ffa1 |
2412 | /* |
2413 | * Now we have permission to enter the sub, we must distinguish |
2414 | * four cases. (0) It's an XSUB (in which case we don't care |
2415 | * about ownership); (1) it's ours already (and we're recursing); |
2416 | * (2) it's free (but we may already be using a cached clone); |
2417 | * (3) another thread owns it. Case (1) is easy: we just use it. |
2418 | * Case (2) means we look for a clone--if we have one, use it |
2419 | * otherwise grab ownership of cv. Case (3) means we look for a |
2420 | * clone (for non-XSUBs) and have to create one if we don't |
2421 | * already have one. |
2422 | * Why look for a clone in case (2) when we could just grab |
2423 | * ownership of cv straight away? Well, we could be recursing, |
2424 | * i.e. we originally tried to enter cv while another thread |
2425 | * owned it (hence we used a clone) but it has been freed up |
2426 | * and we're now recursing into it. It may or may not be "better" |
2427 | * to use the clone but at least CvDEPTH can be trusted. |
2428 | */ |
2429 | if (CvOWNER(cv) == thr || CvXSUB(cv)) |
2430 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
11343788 |
2431 | else { |
3de9ffa1 |
2432 | /* Case (2) or (3) */ |
2433 | SV **svp; |
2434 | |
11343788 |
2435 | /* |
3de9ffa1 |
2436 | * XXX Might it be better to release CvMUTEXP(cv) while we |
2437 | * do the hv_fetch? We might find someone has pinched it |
2438 | * when we look again, in which case we would be in case |
2439 | * (3) instead of (2) so we'd have to clone. Would the fact |
2440 | * that we released the mutex more quickly make up for this? |
2441 | */ |
b099ddc0 |
2442 | if ((svp = hv_fetch(thr->cvcache, (char *)cv, sizeof(cv), FALSE))) |
6ee623d5 |
2443 | { |
3de9ffa1 |
2444 | /* We already have a clone to use */ |
11343788 |
2445 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
3de9ffa1 |
2446 | cv = *(CV**)svp; |
bf49b057 |
2447 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
1fd28e87 |
2448 | "entersub: %p already has clone %p:%s\n", |
2449 | thr, cv, SvPEEK((SV*)cv))); |
3de9ffa1 |
2450 | CvOWNER(cv) = thr; |
2451 | SvREFCNT_inc(cv); |
2452 | if (CvDEPTH(cv) == 0) |
c76ac1ee |
2453 | SAVEDESTRUCTOR_X(unset_cvowner, (void*) cv); |
3de9ffa1 |
2454 | } |
11343788 |
2455 | else { |
3de9ffa1 |
2456 | /* (2) => grab ownership of cv. (3) => make clone */ |
2457 | if (!CvOWNER(cv)) { |
2458 | CvOWNER(cv) = thr; |
2459 | SvREFCNT_inc(cv); |
11343788 |
2460 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
bf49b057 |
2461 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
1fd28e87 |
2462 | "entersub: %p grabbing %p:%s in stash %s\n", |
2463 | thr, cv, SvPEEK((SV*)cv), CvSTASH(cv) ? |
3de9ffa1 |
2464 | HvNAME(CvSTASH(cv)) : "(none)")); |
cd06dffe |
2465 | } |
2466 | else { |
3de9ffa1 |
2467 | /* Make a new clone. */ |
2468 | CV *clonecv; |
2469 | SvREFCNT_inc(cv); /* don't let it vanish from under us */ |
2470 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
bf49b057 |
2471 | DEBUG_S((PerlIO_printf(Perl_debug_log, |
1fd28e87 |
2472 | "entersub: %p cloning %p:%s\n", |
2473 | thr, cv, SvPEEK((SV*)cv)))); |
3de9ffa1 |
2474 | /* |
2475 | * We're creating a new clone so there's no race |
2476 | * between the original MUTEX_UNLOCK and the |
2477 | * SvREFCNT_inc since no one will be trying to undef |
2478 | * it out from underneath us. At least, I don't think |
2479 | * there's a race... |
2480 | */ |
2481 | clonecv = cv_clone(cv); |
2482 | SvREFCNT_dec(cv); /* finished with this */ |
199100c8 |
2483 | hv_store(thr->cvcache, (char*)cv, sizeof(cv), (SV*)clonecv,0); |
3de9ffa1 |
2484 | CvOWNER(clonecv) = thr; |
2485 | cv = clonecv; |
11343788 |
2486 | SvREFCNT_inc(cv); |
11343788 |
2487 | } |
8b73bbec |
2488 | DEBUG_S(if (CvDEPTH(cv) != 0) |
bf49b057 |
2489 | PerlIO_printf(Perl_debug_log, "depth %ld != 0\n", |
3de9ffa1 |
2490 | CvDEPTH(cv));); |
c76ac1ee |
2491 | SAVEDESTRUCTOR_X(unset_cvowner, (void*) cv); |
11343788 |
2492 | } |
3de9ffa1 |
2493 | } |
11343788 |
2494 | #endif /* USE_THREADS */ |
2495 | |
a0d0e21e |
2496 | if (CvXSUB(cv)) { |
67caa1fe |
2497 | #ifdef PERL_XSUB_OLDSTYLE |
a0d0e21e |
2498 | if (CvOLDSTYLE(cv)) { |
20ce7b12 |
2499 | I32 (*fp3)(int,int,int); |
a0d0e21e |
2500 | dMARK; |
2501 | register I32 items = SP - MARK; |
67955e0c |
2502 | /* We dont worry to copy from @_. */ |
924508f0 |
2503 | while (SP > mark) { |
2504 | SP[1] = SP[0]; |
2505 | SP--; |
a0d0e21e |
2506 | } |
3280af22 |
2507 | PL_stack_sp = mark + 1; |
1d7c1841 |
2508 | fp3 = (I32(*)(int,int,int))CvXSUB(cv); |
ecfc5424 |
2509 | items = (*fp3)(CvXSUBANY(cv).any_i32, |
3280af22 |
2510 | MARK - PL_stack_base + 1, |
ecfc5424 |
2511 | items); |
3280af22 |
2512 | PL_stack_sp = PL_stack_base + items; |
a0d0e21e |
2513 | } |
67caa1fe |
2514 | else |
2515 | #endif /* PERL_XSUB_OLDSTYLE */ |
2516 | { |
748a9306 |
2517 | I32 markix = TOPMARK; |
2518 | |
a0d0e21e |
2519 | PUTBACK; |
67955e0c |
2520 | |
2521 | if (!hasargs) { |
2522 | /* Need to copy @_ to stack. Alternative may be to |
2523 | * switch stack to @_, and copy return values |
2524 | * back. This would allow popping @_ in XSUB, e.g.. XXXX */ |
6d4ff0d2 |
2525 | AV* av; |
2526 | I32 items; |
2527 | #ifdef USE_THREADS |
533c011a |
2528 | av = (AV*)PL_curpad[0]; |
6d4ff0d2 |
2529 | #else |
3280af22 |
2530 | av = GvAV(PL_defgv); |
6d4ff0d2 |
2531 | #endif /* USE_THREADS */ |
93965878 |
2532 | items = AvFILLp(av) + 1; /* @_ is not tieable */ |
67955e0c |
2533 | |
2534 | if (items) { |
2535 | /* Mark is at the end of the stack. */ |
924508f0 |
2536 | EXTEND(SP, items); |
2537 | Copy(AvARRAY(av), SP + 1, items, SV*); |
2538 | SP += items; |
67955e0c |
2539 | PUTBACK ; |
2540 | } |
2541 | } |
67caa1fe |
2542 | /* We assume first XSUB in &DB::sub is the called one. */ |
2543 | if (PL_curcopdb) { |
1d7c1841 |
2544 | SAVEVPTR(PL_curcop); |
3280af22 |
2545 | PL_curcop = PL_curcopdb; |
2546 | PL_curcopdb = NULL; |
67955e0c |
2547 | } |
2548 | /* Do we need to open block here? XXXX */ |
0cb96387 |
2549 | (void)(*CvXSUB(cv))(aTHXo_ cv); |
748a9306 |
2550 | |
2551 | /* Enforce some sanity in scalar context. */ |
3280af22 |
2552 | if (gimme == G_SCALAR && ++markix != PL_stack_sp - PL_stack_base ) { |
2553 | if (markix > PL_stack_sp - PL_stack_base) |
2554 | *(PL_stack_base + markix) = &PL_sv_undef; |
748a9306 |
2555 | else |
3280af22 |
2556 | *(PL_stack_base + markix) = *PL_stack_sp; |
2557 | PL_stack_sp = PL_stack_base + markix; |
748a9306 |
2558 | } |
a0d0e21e |
2559 | } |
2560 | LEAVE; |
2561 | return NORMAL; |
2562 | } |
2563 | else { |
2564 | dMARK; |
2565 | register I32 items = SP - MARK; |
a0d0e21e |
2566 | AV* padlist = CvPADLIST(cv); |
2567 | SV** svp = AvARRAY(padlist); |
533c011a |
2568 | push_return(PL_op->op_next); |
a0d0e21e |
2569 | PUSHBLOCK(cx, CXt_SUB, MARK); |
2570 | PUSHSUB(cx); |
2571 | CvDEPTH(cv)++; |
6b35e009 |
2572 | /* XXX This would be a natural place to set C<PL_compcv = cv> so |
2573 | * that eval'' ops within this sub know the correct lexical space. |
2574 | * Owing the speed considerations, we choose to search for the cv |
2575 | * in doeval() instead. |
2576 | */ |
a0d0e21e |
2577 | if (CvDEPTH(cv) < 2) |
2578 | (void)SvREFCNT_inc(cv); |
2579 | else { /* save temporaries on recursion? */ |
1d7c1841 |
2580 | PERL_STACK_OVERFLOW_CHECK(); |
93965878 |
2581 | if (CvDEPTH(cv) > AvFILLp(padlist)) { |
a0d0e21e |
2582 | AV *av; |
2583 | AV *newpad = newAV(); |
4aa0a1f7 |
2584 | SV **oldpad = AvARRAY(svp[CvDEPTH(cv)-1]); |
93965878 |
2585 | I32 ix = AvFILLp((AV*)svp[1]); |
1d7c1841 |
2586 | I32 names_fill = AvFILLp((AV*)svp[0]); |
a0d0e21e |
2587 | svp = AvARRAY(svp[0]); |
748a9306 |
2588 | for ( ;ix > 0; ix--) { |
1d7c1841 |
2589 | if (names_fill >= ix && svp[ix] != &PL_sv_undef) { |
748a9306 |
2590 | char *name = SvPVX(svp[ix]); |
5f05dabc |
2591 | if ((SvFLAGS(svp[ix]) & SVf_FAKE) /* outer lexical? */ |
2592 | || *name == '&') /* anonymous code? */ |
2593 | { |
2594 | av_store(newpad, ix, SvREFCNT_inc(oldpad[ix])); |
748a9306 |
2595 | } |
2596 | else { /* our own lexical */ |
2597 | if (*name == '@') |
2598 | av_store(newpad, ix, sv = (SV*)newAV()); |
2599 | else if (*name == '%') |
2600 | av_store(newpad, ix, sv = (SV*)newHV()); |
2601 | else |
2602 | av_store(newpad, ix, sv = NEWSV(0,0)); |
2603 | SvPADMY_on(sv); |
2604 | } |
a0d0e21e |
2605 | } |
1d7c1841 |
2606 | else if (IS_PADGV(oldpad[ix]) || IS_PADCONST(oldpad[ix])) { |
2607 | av_store(newpad, ix, sv = SvREFCNT_inc(oldpad[ix])); |
2608 | } |
a0d0e21e |
2609 | else { |
748a9306 |
2610 | av_store(newpad, ix, sv = NEWSV(0,0)); |
a0d0e21e |
2611 | SvPADTMP_on(sv); |
2612 | } |
2613 | } |
2614 | av = newAV(); /* will be @_ */ |
2615 | av_extend(av, 0); |
2616 | av_store(newpad, 0, (SV*)av); |
2617 | AvFLAGS(av) = AVf_REIFY; |
2618 | av_store(padlist, CvDEPTH(cv), (SV*)newpad); |
93965878 |
2619 | AvFILLp(padlist) = CvDEPTH(cv); |
a0d0e21e |
2620 | svp = AvARRAY(padlist); |
2621 | } |
2622 | } |
6d4ff0d2 |
2623 | #ifdef USE_THREADS |
2624 | if (!hasargs) { |
533c011a |
2625 | AV* av = (AV*)PL_curpad[0]; |
6d4ff0d2 |
2626 | |
93965878 |
2627 | items = AvFILLp(av) + 1; |
6d4ff0d2 |
2628 | if (items) { |
2629 | /* Mark is at the end of the stack. */ |
924508f0 |
2630 | EXTEND(SP, items); |
2631 | Copy(AvARRAY(av), SP + 1, items, SV*); |
2632 | SP += items; |
6d4ff0d2 |
2633 | PUTBACK ; |
2634 | } |
2635 | } |
2636 | #endif /* USE_THREADS */ |
1d7c1841 |
2637 | SAVEVPTR(PL_curpad); |
3280af22 |
2638 | PL_curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]); |
6d4ff0d2 |
2639 | #ifndef USE_THREADS |
2640 | if (hasargs) |
2641 | #endif /* USE_THREADS */ |
2642 | { |
2643 | AV* av; |
a0d0e21e |
2644 | SV** ary; |
2645 | |
77a005ab |
2646 | #if 0 |
bf49b057 |
2647 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
0f15f207 |
2648 | "%p entersub preparing @_\n", thr)); |
77a005ab |
2649 | #endif |
3280af22 |
2650 | av = (AV*)PL_curpad[0]; |
221373f0 |
2651 | if (AvREAL(av)) { |
2652 | /* @_ is normally not REAL--this should only ever |
2653 | * happen when DB::sub() calls things that modify @_ */ |
2654 | av_clear(av); |
2655 | AvREAL_off(av); |
2656 | AvREIFY_on(av); |
2657 | } |
6d4ff0d2 |
2658 | #ifndef USE_THREADS |
3280af22 |
2659 | cx->blk_sub.savearray = GvAV(PL_defgv); |
2660 | GvAV(PL_defgv) = (AV*)SvREFCNT_inc(av); |
6d4ff0d2 |
2661 | #endif /* USE_THREADS */ |
2662 | cx->blk_sub.argarray = av; |
a0d0e21e |
2663 | ++MARK; |
2664 | |
2665 | if (items > AvMAX(av) + 1) { |
2666 | ary = AvALLOC(av); |
2667 | if (AvARRAY(av) != ary) { |
2668 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); |
2669 | SvPVX(av) = (char*)ary; |
2670 | } |
2671 | if (items > AvMAX(av) + 1) { |
2672 | AvMAX(av) = items - 1; |
2673 | Renew(ary,items,SV*); |
2674 | AvALLOC(av) = ary; |
2675 | SvPVX(av) = (char*)ary; |
2676 | } |
2677 | } |
2678 | Copy(MARK,AvARRAY(av),items,SV*); |
93965878 |
2679 | AvFILLp(av) = items - 1; |
a0d0e21e |
2680 | |
2681 | while (items--) { |
2682 | if (*MARK) |
2683 | SvTEMP_off(*MARK); |
2684 | MARK++; |
2685 | } |
2686 | } |
4a925ff6 |
2687 | /* warning must come *after* we fully set up the context |
2688 | * stuff so that __WARN__ handlers can safely dounwind() |
2689 | * if they want to |
2690 | */ |
2691 | if (CvDEPTH(cv) == 100 && ckWARN(WARN_RECURSION) |
2692 | && !(PERLDB_SUB && cv == GvCV(PL_DBsub))) |
2693 | sub_crush_depth(cv); |
77a005ab |
2694 | #if 0 |
bf49b057 |
2695 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
0f15f207 |
2696 | "%p entersub returning %p\n", thr, CvSTART(cv))); |
77a005ab |
2697 | #endif |
a0d0e21e |
2698 | RETURNOP(CvSTART(cv)); |
2699 | } |
2700 | } |
2701 | |
44a8e56a |
2702 | void |
864dbfa3 |
2703 | Perl_sub_crush_depth(pTHX_ CV *cv) |
44a8e56a |
2704 | { |
2705 | if (CvANON(cv)) |
cea2e8a9 |
2706 | Perl_warner(aTHX_ WARN_RECURSION, "Deep recursion on anonymous subroutine"); |
44a8e56a |
2707 | else { |
2708 | SV* tmpstr = sv_newmortal(); |
2709 | gv_efullname3(tmpstr, CvGV(cv), Nullch); |
cea2e8a9 |
2710 | Perl_warner(aTHX_ WARN_RECURSION, "Deep recursion on subroutine \"%s\"", |
599cee73 |
2711 | SvPVX(tmpstr)); |
44a8e56a |
2712 | } |
2713 | } |
2714 | |
a0d0e21e |
2715 | PP(pp_aelem) |
2716 | { |
4e35701f |
2717 | djSP; |
a0d0e21e |
2718 | SV** svp; |
748a9306 |
2719 | I32 elem = POPi; |
68dc0745 |
2720 | AV* av = (AV*)POPs; |
533c011a |
2721 | U32 lval = PL_op->op_flags & OPf_MOD; |
2722 | U32 defer = (PL_op->op_private & OPpLVAL_DEFER) && (elem > AvFILL(av)); |
be6c24e0 |
2723 | SV *sv; |
a0d0e21e |
2724 | |
748a9306 |
2725 | if (elem > 0) |
3280af22 |
2726 | elem -= PL_curcop->cop_arybase; |
a0d0e21e |
2727 | if (SvTYPE(av) != SVt_PVAV) |
2728 | RETPUSHUNDEF; |
68dc0745 |
2729 | svp = av_fetch(av, elem, lval && !defer); |
a0d0e21e |
2730 | if (lval) { |
3280af22 |
2731 | if (!svp || *svp == &PL_sv_undef) { |
68dc0745 |
2732 | SV* lv; |
2733 | if (!defer) |
cea2e8a9 |
2734 | DIE(aTHX_ PL_no_aelem, elem); |
68dc0745 |
2735 | lv = sv_newmortal(); |
2736 | sv_upgrade(lv, SVt_PVLV); |
2737 | LvTYPE(lv) = 'y'; |
2738 | sv_magic(lv, Nullsv, 'y', Nullch, 0); |
2739 | LvTARG(lv) = SvREFCNT_inc(av); |
2740 | LvTARGOFF(lv) = elem; |
2741 | LvTARGLEN(lv) = 1; |
2742 | PUSHs(lv); |
2743 | RETURN; |
2744 | } |
533c011a |
2745 | if (PL_op->op_private & OPpLVAL_INTRO) |
161b7d16 |
2746 | save_aelem(av, elem, svp); |
533c011a |
2747 | else if (PL_op->op_private & OPpDEREF) |
2748 | vivify_ref(*svp, PL_op->op_private & OPpDEREF); |
a0d0e21e |
2749 | } |
3280af22 |
2750 | sv = (svp ? *svp : &PL_sv_undef); |
be6c24e0 |
2751 | if (!lval && SvGMAGICAL(sv)) /* see note in pp_helem() */ |
2752 | sv = sv_mortalcopy(sv); |
2753 | PUSHs(sv); |
a0d0e21e |
2754 | RETURN; |
2755 | } |
2756 | |
02a9e968 |
2757 | void |
864dbfa3 |
2758 | Perl_vivify_ref(pTHX_ SV *sv, U32 to_what) |
02a9e968 |
2759 | { |
2760 | if (SvGMAGICAL(sv)) |
2761 | mg_get(sv); |
2762 | if (!SvOK(sv)) { |
2763 | if (SvREADONLY(sv)) |
cea2e8a9 |
2764 | Perl_croak(aTHX_ PL_no_modify); |
5f05dabc |
2765 | if (SvTYPE(sv) < SVt_RV) |
2766 | sv_upgrade(sv, SVt_RV); |
2767 | else if (SvTYPE(sv) >= SVt_PV) { |
2768 | (void)SvOOK_off(sv); |
2769 | Safefree(SvPVX(sv)); |
2770 | SvLEN(sv) = SvCUR(sv) = 0; |
2771 | } |
68dc0745 |
2772 | switch (to_what) { |
5f05dabc |
2773 | case OPpDEREF_SV: |
8c52afec |
2774 | SvRV(sv) = NEWSV(355,0); |
5f05dabc |
2775 | break; |
2776 | case OPpDEREF_AV: |
2777 | SvRV(sv) = (SV*)newAV(); |
2778 | break; |
2779 | case OPpDEREF_HV: |
2780 | SvRV(sv) = (SV*)newHV(); |
2781 | break; |
2782 | } |
02a9e968 |
2783 | SvROK_on(sv); |
2784 | SvSETMAGIC(sv); |
2785 | } |
2786 | } |
2787 | |
a0d0e21e |
2788 | PP(pp_method) |
2789 | { |
4e35701f |
2790 | djSP; |
f5d5a27c |
2791 | SV* sv = TOPs; |
2792 | |
2793 | if (SvROK(sv)) { |
eda383f2 |
2794 | SV* rsv = SvRV(sv); |
f5d5a27c |
2795 | if (SvTYPE(rsv) == SVt_PVCV) { |
2796 | SETs(rsv); |
2797 | RETURN; |
2798 | } |
2799 | } |
2800 | |
2801 | SETs(method_common(sv, Null(U32*))); |
2802 | RETURN; |
2803 | } |
2804 | |
2805 | PP(pp_method_named) |
2806 | { |
2807 | djSP; |
2808 | SV* sv = cSVOP->op_sv; |
2809 | U32 hash = SvUVX(sv); |
2810 | |
2811 | XPUSHs(method_common(sv, &hash)); |
2812 | RETURN; |
2813 | } |
2814 | |
2815 | STATIC SV * |
2816 | S_method_common(pTHX_ SV* meth, U32* hashp) |
2817 | { |
a0d0e21e |
2818 | SV* sv; |
2819 | SV* ob; |
2820 | GV* gv; |
56304f61 |
2821 | HV* stash; |
2822 | char* name; |
f5d5a27c |
2823 | STRLEN namelen; |
ac91690f |
2824 | char* packname; |
2825 | STRLEN packlen; |
a0d0e21e |
2826 | |
f5d5a27c |
2827 | name = SvPV(meth, namelen); |
3280af22 |
2828 | sv = *(PL_stack_base + TOPMARK + 1); |
f5d5a27c |
2829 | |
16d20bd9 |
2830 | if (SvGMAGICAL(sv)) |
2831 | mg_get(sv); |
a0d0e21e |
2832 | if (SvROK(sv)) |
16d20bd9 |
2833 | ob = (SV*)SvRV(sv); |
a0d0e21e |
2834 | else { |
2835 | GV* iogv; |
a0d0e21e |
2836 | |
56304f61 |
2837 | packname = Nullch; |
a0d0e21e |
2838 | if (!SvOK(sv) || |
56304f61 |
2839 | !(packname = SvPV(sv, packlen)) || |
a0d0e21e |
2840 | !(iogv = gv_fetchpv(packname, FALSE, SVt_PVIO)) || |
2841 | !(ob=(SV*)GvIO(iogv))) |
2842 | { |
834a4ddd |
2843 | if (!packname || |
7e2040f0 |
2844 | ((*(U8*)packname >= 0xc0 && DO_UTF8(sv)) |
b86a2fa7 |
2845 | ? !isIDFIRST_utf8((U8*)packname) |
834a4ddd |
2846 | : !isIDFIRST(*packname) |
2847 | )) |
2848 | { |
f5d5a27c |
2849 | Perl_croak(aTHX_ "Can't call method \"%s\" %s", name, |
2850 | SvOK(sv) ? "without a package or object reference" |
2851 | : "on an undefined value"); |
834a4ddd |
2852 | } |
56304f61 |
2853 | stash = gv_stashpvn(packname, packlen, TRUE); |
ac91690f |
2854 | goto fetch; |
a0d0e21e |
2855 | } |
3280af22 |
2856 | *(PL_stack_base + TOPMARK + 1) = sv_2mortal(newRV((SV*)iogv)); |
a0d0e21e |
2857 | } |
2858 | |
f0d43078 |
2859 | if (!ob || !(SvOBJECT(ob) |
2860 | || (SvTYPE(ob) == SVt_PVGV && (ob = (SV*)GvIO((GV*)ob)) |
2861 | && SvOBJECT(ob)))) |
2862 | { |
f5d5a27c |
2863 | Perl_croak(aTHX_ "Can't call method \"%s\" on unblessed reference", |
2864 | name); |
f0d43078 |
2865 | } |
a0d0e21e |
2866 | |
56304f61 |
2867 | stash = SvSTASH(ob); |
a0d0e21e |
2868 | |
ac91690f |
2869 | fetch: |
f5d5a27c |
2870 | /* shortcut for simple names */ |
2871 | if (hashp) { |
2872 | HE* he = hv_fetch_ent(stash, meth, 0, *hashp); |
2873 | if (he) { |
2874 | gv = (GV*)HeVAL(he); |
2875 | if (isGV(gv) && GvCV(gv) && |
2876 | (!GvCVGEN(gv) || GvCVGEN(gv) == PL_sub_generation)) |
2877 | return (SV*)GvCV(gv); |
2878 | } |
2879 | } |
2880 | |
ac91690f |
2881 | gv = gv_fetchmethod(stash, name); |
56304f61 |
2882 | if (!gv) { |
2883 | char* leaf = name; |
2884 | char* sep = Nullch; |
2885 | char* p; |
2886 | |
2887 | for (p = name; *p; p++) { |
2888 | if (*p == '\'') |
2889 | sep = p, leaf = p + 1; |
2890 | else if (*p == ':' && *(p + 1) == ':') |
2891 | sep = p, leaf = p + 2; |
2892 | } |
2893 | if (!sep || ((sep - name) == 5 && strnEQ(name, "SUPER", 5))) { |
1d7c1841 |
2894 | packname = sep ? CopSTASHPV(PL_curcop) : HvNAME(stash); |
56304f61 |
2895 | packlen = strlen(packname); |
2896 | } |
2897 | else { |
2898 | packname = name; |
2899 | packlen = sep - name; |
2900 | } |
f5d5a27c |
2901 | Perl_croak(aTHX_ |
2902 | "Can't locate object method \"%s\" via package \"%s\"", |
2903 | leaf, packname); |
56304f61 |
2904 | } |
f5d5a27c |
2905 | return isGV(gv) ? (SV*)GvCV(gv) : (SV*)gv; |
a0d0e21e |
2906 | } |
22239a37 |
2907 | |
51371543 |
2908 | #ifdef USE_THREADS |
2909 | static void |
2910 | unset_cvowner(pTHXo_ void *cvarg) |
2911 | { |
2912 | register CV* cv = (CV *) cvarg; |
2913 | #ifdef DEBUGGING |
2914 | dTHR; |
2915 | #endif /* DEBUGGING */ |
2916 | |
bf49b057 |
2917 | DEBUG_S((PerlIO_printf(Perl_debug_log, "%p unsetting CvOWNER of %p:%s\n", |
51371543 |
2918 | thr, cv, SvPEEK((SV*)cv)))); |
2919 | MUTEX_LOCK(CvMUTEXP(cv)); |
2920 | DEBUG_S(if (CvDEPTH(cv) != 0) |
bf49b057 |
2921 | PerlIO_printf(Perl_debug_log, "depth %ld != 0\n", |
51371543 |
2922 | CvDEPTH(cv));); |
2923 | assert(thr == CvOWNER(cv)); |
2924 | CvOWNER(cv) = 0; |
2925 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
2926 | SvREFCNT_dec(cv); |
2927 | } |
2928 | #endif /* USE_THREADS */ |