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 | MAGIC *mg; |
111 | |
533c011a |
112 | if (PL_op->op_private & OPpASSIGN_BACKWARDS) { |
a0d0e21e |
113 | SV *temp; |
114 | temp = left; left = right; right = temp; |
115 | } |
3280af22 |
116 | if (PL_tainting && PL_tainted && !SvTAINTED(left)) |
a0d0e21e |
117 | TAINT_NOT; |
54310121 |
118 | SvSetMagicSV(right, left); |
a0d0e21e |
119 | SETs(right); |
120 | RETURN; |
121 | } |
122 | |
123 | PP(pp_cond_expr) |
124 | { |
4e35701f |
125 | djSP; |
a0d0e21e |
126 | if (SvTRUEx(POPs)) |
1a67a97c |
127 | RETURNOP(cLOGOP->op_other); |
a0d0e21e |
128 | else |
1a67a97c |
129 | RETURNOP(cLOGOP->op_next); |
a0d0e21e |
130 | } |
131 | |
132 | PP(pp_unstack) |
133 | { |
134 | I32 oldsave; |
135 | TAINT_NOT; /* Each statement is presumed innocent */ |
3280af22 |
136 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e |
137 | FREETMPS; |
3280af22 |
138 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e |
139 | LEAVE_SCOPE(oldsave); |
140 | return NORMAL; |
141 | } |
142 | |
a0d0e21e |
143 | PP(pp_concat) |
144 | { |
4e35701f |
145 | djSP; dATARGET; tryAMAGICbin(concat,opASSIGN); |
748a9306 |
146 | { |
147 | dPOPTOPssrl; |
a0d0e21e |
148 | STRLEN len; |
149 | char *s; |
69b47968 |
150 | |
a0d0e21e |
151 | if (TARG != left) { |
152 | s = SvPV(left,len); |
69b47968 |
153 | if (TARG == right) { |
154 | sv_insert(TARG, 0, 0, s, len); |
155 | SETs(TARG); |
156 | RETURN; |
157 | } |
a0d0e21e |
158 | sv_setpvn(TARG,s,len); |
159 | } |
c07a80fd |
160 | else if (SvGMAGICAL(TARG)) |
161 | mg_get(TARG); |
7a4c00b4 |
162 | else if (!SvOK(TARG) && SvTYPE(TARG) <= SVt_PVMG) { |
748a9306 |
163 | sv_setpv(TARG, ""); /* Suppress warning. */ |
7a4c00b4 |
164 | s = SvPV_force(TARG, len); |
4633a7c4 |
165 | } |
a0d0e21e |
166 | s = SvPV(right,len); |
5bc28da9 |
167 | if (SvOK(TARG)) { |
168 | #if defined(PERL_Y2KWARN) |
e476b1b5 |
169 | if ((SvIOK(right) || SvNOK(right)) && ckWARN(WARN_Y2K)) { |
5bc28da9 |
170 | STRLEN n; |
171 | char *s = SvPV(TARG,n); |
172 | if (n >= 2 && s[n-2] == '1' && s[n-1] == '9' |
173 | && (n == 2 || !isDIGIT(s[n-3]))) |
174 | { |
e476b1b5 |
175 | Perl_warner(aTHX_ WARN_Y2K, "Possible Y2K bug: %s", |
5bc28da9 |
176 | "about to append an integer to '19'"); |
177 | } |
178 | } |
179 | #endif |
560a288e |
180 | if (DO_UTF8(right)) |
181 | sv_utf8_upgrade(TARG); |
68dc0745 |
182 | sv_catpvn(TARG,s,len); |
560a288e |
183 | if (!IN_BYTE) { |
184 | if (SvUTF8(right)) |
185 | SvUTF8_on(TARG); |
186 | } |
187 | else if (!SvUTF8(right)) { |
188 | SvUTF8_off(TARG); |
189 | } |
5bc28da9 |
190 | } |
68dc0745 |
191 | else |
192 | sv_setpvn(TARG,s,len); /* suppress warning */ |
a0d0e21e |
193 | SETTARG; |
194 | RETURN; |
748a9306 |
195 | } |
a0d0e21e |
196 | } |
197 | |
198 | PP(pp_padsv) |
199 | { |
4e35701f |
200 | djSP; dTARGET; |
a0d0e21e |
201 | XPUSHs(TARG); |
533c011a |
202 | if (PL_op->op_flags & OPf_MOD) { |
203 | if (PL_op->op_private & OPpLVAL_INTRO) |
204 | SAVECLEARSV(PL_curpad[PL_op->op_targ]); |
205 | else if (PL_op->op_private & OPpDEREF) { |
8ec5e241 |
206 | PUTBACK; |
533c011a |
207 | vivify_ref(PL_curpad[PL_op->op_targ], PL_op->op_private & OPpDEREF); |
8ec5e241 |
208 | SPAGAIN; |
209 | } |
4633a7c4 |
210 | } |
a0d0e21e |
211 | RETURN; |
212 | } |
213 | |
214 | PP(pp_readline) |
215 | { |
f5284f61 |
216 | tryAMAGICunTARGET(iter, 0); |
3280af22 |
217 | PL_last_in_gv = (GV*)(*PL_stack_sp--); |
8efb3254 |
218 | if (SvTYPE(PL_last_in_gv) != SVt_PVGV) { |
219 | if (SvROK(PL_last_in_gv) && SvTYPE(SvRV(PL_last_in_gv)) == SVt_PVGV) |
f5284f61 |
220 | PL_last_in_gv = (GV*)SvRV(PL_last_in_gv); |
8efb3254 |
221 | else { |
f5284f61 |
222 | dSP; |
223 | XPUSHs((SV*)PL_last_in_gv); |
224 | PUTBACK; |
cea2e8a9 |
225 | pp_rv2gv(); |
f5284f61 |
226 | PL_last_in_gv = (GV*)(*PL_stack_sp--); |
f5284f61 |
227 | } |
228 | } |
a0d0e21e |
229 | return do_readline(); |
230 | } |
231 | |
232 | PP(pp_eq) |
233 | { |
4e35701f |
234 | djSP; tryAMAGICbinSET(eq,0); |
a0d0e21e |
235 | { |
236 | dPOPnv; |
54310121 |
237 | SETs(boolSV(TOPn == value)); |
a0d0e21e |
238 | RETURN; |
239 | } |
240 | } |
241 | |
242 | PP(pp_preinc) |
243 | { |
4e35701f |
244 | djSP; |
68dc0745 |
245 | if (SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV) |
d470f89e |
246 | DIE(aTHX_ PL_no_modify); |
25da4f38 |
247 | if (SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) && |
55497cff |
248 | SvIVX(TOPs) != IV_MAX) |
249 | { |
748a9306 |
250 | ++SvIVX(TOPs); |
55497cff |
251 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
748a9306 |
252 | } |
253 | else |
254 | sv_inc(TOPs); |
a0d0e21e |
255 | SvSETMAGIC(TOPs); |
256 | return NORMAL; |
257 | } |
258 | |
259 | PP(pp_or) |
260 | { |
4e35701f |
261 | djSP; |
a0d0e21e |
262 | if (SvTRUE(TOPs)) |
263 | RETURN; |
264 | else { |
265 | --SP; |
266 | RETURNOP(cLOGOP->op_other); |
267 | } |
268 | } |
269 | |
270 | PP(pp_add) |
271 | { |
4e35701f |
272 | djSP; dATARGET; tryAMAGICbin(add,opASSIGN); |
a0d0e21e |
273 | { |
7a4c00b4 |
274 | dPOPTOPnnrl_ul; |
a0d0e21e |
275 | SETn( left + right ); |
276 | RETURN; |
277 | } |
278 | } |
279 | |
280 | PP(pp_aelemfast) |
281 | { |
4e35701f |
282 | djSP; |
1d7c1841 |
283 | AV *av = GvAV(cGVOP_gv); |
533c011a |
284 | U32 lval = PL_op->op_flags & OPf_MOD; |
285 | SV** svp = av_fetch(av, PL_op->op_private, lval); |
3280af22 |
286 | SV *sv = (svp ? *svp : &PL_sv_undef); |
6ff81951 |
287 | EXTEND(SP, 1); |
be6c24e0 |
288 | if (!lval && SvGMAGICAL(sv)) /* see note in pp_helem() */ |
289 | sv = sv_mortalcopy(sv); |
290 | PUSHs(sv); |
a0d0e21e |
291 | RETURN; |
292 | } |
293 | |
294 | PP(pp_join) |
295 | { |
4e35701f |
296 | djSP; dMARK; dTARGET; |
a0d0e21e |
297 | MARK++; |
298 | do_join(TARG, *MARK, MARK, SP); |
299 | SP = MARK; |
300 | SETs(TARG); |
301 | RETURN; |
302 | } |
303 | |
304 | PP(pp_pushre) |
305 | { |
4e35701f |
306 | djSP; |
44a8e56a |
307 | #ifdef DEBUGGING |
308 | /* |
309 | * We ass_u_me that LvTARGOFF() comes first, and that two STRLENs |
310 | * will be enough to hold an OP*. |
311 | */ |
312 | SV* sv = sv_newmortal(); |
313 | sv_upgrade(sv, SVt_PVLV); |
314 | LvTYPE(sv) = '/'; |
533c011a |
315 | Copy(&PL_op, &LvTARGOFF(sv), 1, OP*); |
44a8e56a |
316 | XPUSHs(sv); |
317 | #else |
6b88bc9c |
318 | XPUSHs((SV*)PL_op); |
44a8e56a |
319 | #endif |
a0d0e21e |
320 | RETURN; |
321 | } |
322 | |
323 | /* Oversized hot code. */ |
324 | |
325 | PP(pp_print) |
326 | { |
4e35701f |
327 | djSP; dMARK; dORIGMARK; |
a0d0e21e |
328 | GV *gv; |
329 | IO *io; |
760ac839 |
330 | register PerlIO *fp; |
236988e4 |
331 | MAGIC *mg; |
2d8e6c8d |
332 | STRLEN n_a; |
a0d0e21e |
333 | |
533c011a |
334 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e |
335 | gv = (GV*)*++MARK; |
336 | else |
3280af22 |
337 | gv = PL_defoutgv; |
33c27489 |
338 | if (mg = SvTIED_mg((SV*)gv, 'q')) { |
68dc0745 |
339 | if (MARK == ORIGMARK) { |
a60c0954 |
340 | /* If using default handle then we need to make space to |
341 | * pass object as 1st arg, so move other args up ... |
342 | */ |
4352c267 |
343 | MEXTEND(SP, 1); |
68dc0745 |
344 | ++MARK; |
345 | Move(MARK, MARK + 1, (SP - MARK) + 1, SV*); |
346 | ++SP; |
347 | } |
348 | PUSHMARK(MARK - 1); |
33c27489 |
349 | *MARK = SvTIED_obj((SV*)gv, mg); |
68dc0745 |
350 | PUTBACK; |
236988e4 |
351 | ENTER; |
864dbfa3 |
352 | call_method("PRINT", G_SCALAR); |
236988e4 |
353 | LEAVE; |
354 | SPAGAIN; |
68dc0745 |
355 | MARK = ORIGMARK + 1; |
356 | *MARK = *SP; |
357 | SP = MARK; |
236988e4 |
358 | RETURN; |
359 | } |
a0d0e21e |
360 | if (!(io = GvIO(gv))) { |
599cee73 |
361 | if (ckWARN(WARN_UNOPENED)) { |
748a9306 |
362 | SV* sv = sv_newmortal(); |
af8c498a |
363 | gv_efullname3(sv, gv, Nullch); |
364 | Perl_warner(aTHX_ WARN_UNOPENED, "Filehandle %s never opened", |
365 | SvPV(sv,n_a)); |
748a9306 |
366 | } |
748a9306 |
367 | SETERRNO(EBADF,RMS$_IFI); |
a0d0e21e |
368 | goto just_say_no; |
369 | } |
370 | else if (!(fp = IoOFP(io))) { |
599cee73 |
371 | if (ckWARN2(WARN_CLOSED, WARN_IO)) { |
69282e91 |
372 | if (IoIFP(io)) { |
373 | SV* sv = sv_newmortal(); |
374 | gv_efullname3(sv, gv, Nullch); |
af8c498a |
375 | Perl_warner(aTHX_ WARN_IO, |
376 | "Filehandle %s opened only for input", |
377 | SvPV(sv,n_a)); |
69282e91 |
378 | } |
599cee73 |
379 | else if (ckWARN(WARN_CLOSED)) |
69282e91 |
380 | report_closed_fh(gv, io, "print", "filehandle"); |
a0d0e21e |
381 | } |
748a9306 |
382 | SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI); |
a0d0e21e |
383 | goto just_say_no; |
384 | } |
385 | else { |
386 | MARK++; |
3280af22 |
387 | if (PL_ofslen) { |
a0d0e21e |
388 | while (MARK <= SP) { |
389 | if (!do_print(*MARK, fp)) |
390 | break; |
391 | MARK++; |
392 | if (MARK <= SP) { |
3280af22 |
393 | if (PerlIO_write(fp, PL_ofs, PL_ofslen) == 0 || PerlIO_error(fp)) { |
a0d0e21e |
394 | MARK--; |
395 | break; |
396 | } |
397 | } |
398 | } |
399 | } |
400 | else { |
401 | while (MARK <= SP) { |
402 | if (!do_print(*MARK, fp)) |
403 | break; |
404 | MARK++; |
405 | } |
406 | } |
407 | if (MARK <= SP) |
408 | goto just_say_no; |
409 | else { |
3280af22 |
410 | if (PL_orslen) |
411 | if (PerlIO_write(fp, PL_ors, PL_orslen) == 0 || PerlIO_error(fp)) |
a0d0e21e |
412 | goto just_say_no; |
413 | |
414 | if (IoFLAGS(io) & IOf_FLUSH) |
760ac839 |
415 | if (PerlIO_flush(fp) == EOF) |
a0d0e21e |
416 | goto just_say_no; |
417 | } |
418 | } |
419 | SP = ORIGMARK; |
3280af22 |
420 | PUSHs(&PL_sv_yes); |
a0d0e21e |
421 | RETURN; |
422 | |
423 | just_say_no: |
424 | SP = ORIGMARK; |
3280af22 |
425 | PUSHs(&PL_sv_undef); |
a0d0e21e |
426 | RETURN; |
427 | } |
428 | |
429 | PP(pp_rv2av) |
430 | { |
f5284f61 |
431 | djSP; dTOPss; |
a0d0e21e |
432 | AV *av; |
433 | |
434 | if (SvROK(sv)) { |
435 | wasref: |
f5284f61 |
436 | tryAMAGICunDEREF(to_av); |
437 | |
a0d0e21e |
438 | av = (AV*)SvRV(sv); |
439 | if (SvTYPE(av) != SVt_PVAV) |
cea2e8a9 |
440 | DIE(aTHX_ "Not an ARRAY reference"); |
533c011a |
441 | if (PL_op->op_flags & OPf_REF) { |
f5284f61 |
442 | SETs((SV*)av); |
a0d0e21e |
443 | RETURN; |
444 | } |
445 | } |
446 | else { |
447 | if (SvTYPE(sv) == SVt_PVAV) { |
448 | av = (AV*)sv; |
533c011a |
449 | if (PL_op->op_flags & OPf_REF) { |
f5284f61 |
450 | SETs((SV*)av); |
a0d0e21e |
451 | RETURN; |
452 | } |
453 | } |
454 | else { |
67955e0c |
455 | GV *gv; |
456 | |
a0d0e21e |
457 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 |
458 | char *sym; |
2d8e6c8d |
459 | STRLEN n_a; |
748a9306 |
460 | |
a0d0e21e |
461 | if (SvGMAGICAL(sv)) { |
462 | mg_get(sv); |
463 | if (SvROK(sv)) |
464 | goto wasref; |
465 | } |
466 | if (!SvOK(sv)) { |
533c011a |
467 | if (PL_op->op_flags & OPf_REF || |
468 | PL_op->op_private & HINT_STRICT_REFS) |
cea2e8a9 |
469 | DIE(aTHX_ PL_no_usym, "an ARRAY"); |
599cee73 |
470 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 |
471 | report_uninit(); |
f5284f61 |
472 | if (GIMME == G_ARRAY) { |
c2444246 |
473 | (void)POPs; |
4633a7c4 |
474 | RETURN; |
f5284f61 |
475 | } |
476 | RETSETUNDEF; |
a0d0e21e |
477 | } |
2d8e6c8d |
478 | sym = SvPV(sv,n_a); |
35cd451c |
479 | if ((PL_op->op_flags & OPf_SPECIAL) && |
480 | !(PL_op->op_flags & OPf_MOD)) |
481 | { |
482 | gv = (GV*)gv_fetchpv(sym, FALSE, SVt_PVAV); |
483 | if (!gv) |
484 | RETSETUNDEF; |
485 | } |
486 | else { |
487 | if (PL_op->op_private & HINT_STRICT_REFS) |
cea2e8a9 |
488 | DIE(aTHX_ PL_no_symref, sym, "an ARRAY"); |
35cd451c |
489 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVAV); |
490 | } |
491 | } |
492 | else { |
67955e0c |
493 | gv = (GV*)sv; |
a0d0e21e |
494 | } |
67955e0c |
495 | av = GvAVn(gv); |
533c011a |
496 | if (PL_op->op_private & OPpLVAL_INTRO) |
67955e0c |
497 | av = save_ary(gv); |
533c011a |
498 | if (PL_op->op_flags & OPf_REF) { |
f5284f61 |
499 | SETs((SV*)av); |
a0d0e21e |
500 | RETURN; |
501 | } |
502 | } |
503 | } |
504 | |
505 | if (GIMME == G_ARRAY) { |
506 | I32 maxarg = AvFILL(av) + 1; |
c2444246 |
507 | (void)POPs; /* XXXX May be optimized away? */ |
93965878 |
508 | EXTEND(SP, maxarg); |
509 | if (SvRMAGICAL(av)) { |
510 | U32 i; |
511 | for (i=0; i < maxarg; i++) { |
512 | SV **svp = av_fetch(av, i, FALSE); |
3280af22 |
513 | SP[i+1] = (svp) ? *svp : &PL_sv_undef; |
93965878 |
514 | } |
515 | } |
516 | else { |
517 | Copy(AvARRAY(av), SP+1, maxarg, SV*); |
518 | } |
a0d0e21e |
519 | SP += maxarg; |
520 | } |
521 | else { |
522 | dTARGET; |
523 | I32 maxarg = AvFILL(av) + 1; |
f5284f61 |
524 | SETi(maxarg); |
a0d0e21e |
525 | } |
526 | RETURN; |
527 | } |
528 | |
529 | PP(pp_rv2hv) |
530 | { |
4e35701f |
531 | djSP; dTOPss; |
a0d0e21e |
532 | HV *hv; |
533 | |
534 | if (SvROK(sv)) { |
535 | wasref: |
f5284f61 |
536 | tryAMAGICunDEREF(to_hv); |
537 | |
a0d0e21e |
538 | hv = (HV*)SvRV(sv); |
c750a3ec |
539 | if (SvTYPE(hv) != SVt_PVHV && SvTYPE(hv) != SVt_PVAV) |
cea2e8a9 |
540 | DIE(aTHX_ "Not a HASH reference"); |
533c011a |
541 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e |
542 | SETs((SV*)hv); |
543 | RETURN; |
544 | } |
545 | } |
546 | else { |
c750a3ec |
547 | if (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) { |
a0d0e21e |
548 | hv = (HV*)sv; |
533c011a |
549 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e |
550 | SETs((SV*)hv); |
551 | RETURN; |
552 | } |
553 | } |
554 | else { |
67955e0c |
555 | GV *gv; |
556 | |
a0d0e21e |
557 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 |
558 | char *sym; |
2d8e6c8d |
559 | STRLEN n_a; |
748a9306 |
560 | |
a0d0e21e |
561 | if (SvGMAGICAL(sv)) { |
562 | mg_get(sv); |
563 | if (SvROK(sv)) |
564 | goto wasref; |
565 | } |
566 | if (!SvOK(sv)) { |
533c011a |
567 | if (PL_op->op_flags & OPf_REF || |
568 | PL_op->op_private & HINT_STRICT_REFS) |
cea2e8a9 |
569 | DIE(aTHX_ PL_no_usym, "a HASH"); |
599cee73 |
570 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 |
571 | report_uninit(); |
4633a7c4 |
572 | if (GIMME == G_ARRAY) { |
573 | SP--; |
574 | RETURN; |
575 | } |
a0d0e21e |
576 | RETSETUNDEF; |
577 | } |
2d8e6c8d |
578 | sym = SvPV(sv,n_a); |
35cd451c |
579 | if ((PL_op->op_flags & OPf_SPECIAL) && |
580 | !(PL_op->op_flags & OPf_MOD)) |
581 | { |
582 | gv = (GV*)gv_fetchpv(sym, FALSE, SVt_PVHV); |
583 | if (!gv) |
584 | RETSETUNDEF; |
585 | } |
586 | else { |
587 | if (PL_op->op_private & HINT_STRICT_REFS) |
cea2e8a9 |
588 | DIE(aTHX_ PL_no_symref, sym, "a HASH"); |
35cd451c |
589 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVHV); |
590 | } |
591 | } |
592 | else { |
67955e0c |
593 | gv = (GV*)sv; |
a0d0e21e |
594 | } |
67955e0c |
595 | hv = GvHVn(gv); |
533c011a |
596 | if (PL_op->op_private & OPpLVAL_INTRO) |
67955e0c |
597 | hv = save_hash(gv); |
533c011a |
598 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e |
599 | SETs((SV*)hv); |
600 | RETURN; |
601 | } |
602 | } |
603 | } |
604 | |
605 | if (GIMME == G_ARRAY) { /* array wanted */ |
3280af22 |
606 | *PL_stack_sp = (SV*)hv; |
cea2e8a9 |
607 | return do_kv(); |
a0d0e21e |
608 | } |
609 | else { |
610 | dTARGET; |
4b154ab5 |
611 | if (SvTYPE(hv) == SVt_PVAV) |
612 | hv = avhv_keys((AV*)hv); |
b9c39e73 |
613 | if (HvFILL(hv)) |
57def98f |
614 | Perl_sv_setpvf(aTHX_ TARG, "%"IVdf"/%"IVdf, |
615 | (IV)HvFILL(hv), (IV)HvMAX(hv) + 1); |
a0d0e21e |
616 | else |
617 | sv_setiv(TARG, 0); |
c750a3ec |
618 | |
a0d0e21e |
619 | SETTARG; |
620 | RETURN; |
621 | } |
622 | } |
623 | |
624 | PP(pp_aassign) |
625 | { |
4e35701f |
626 | djSP; |
3280af22 |
627 | SV **lastlelem = PL_stack_sp; |
628 | SV **lastrelem = PL_stack_base + POPMARK; |
629 | SV **firstrelem = PL_stack_base + POPMARK + 1; |
a0d0e21e |
630 | SV **firstlelem = lastrelem + 1; |
631 | |
632 | register SV **relem; |
633 | register SV **lelem; |
634 | |
635 | register SV *sv; |
636 | register AV *ary; |
637 | |
54310121 |
638 | I32 gimme; |
a0d0e21e |
639 | HV *hash; |
640 | I32 i; |
641 | int magic; |
642 | |
3280af22 |
643 | PL_delaymagic = DM_DELAY; /* catch simultaneous items */ |
a0d0e21e |
644 | |
645 | /* If there's a common identifier on both sides we have to take |
646 | * special care that assigning the identifier on the left doesn't |
647 | * clobber a value on the right that's used later in the list. |
648 | */ |
533c011a |
649 | if (PL_op->op_private & OPpASSIGN_COMMON) { |
cc5e57d2 |
650 | EXTEND_MORTAL(lastrelem - firstrelem + 1); |
a0d0e21e |
651 | for (relem = firstrelem; relem <= lastrelem; relem++) { |
652 | /*SUPPRESS 560*/ |
a1f49e72 |
653 | if (sv = *relem) { |
654 | TAINT_NOT; /* Each item is independent */ |
a0d0e21e |
655 | *relem = sv_mortalcopy(sv); |
a1f49e72 |
656 | } |
a0d0e21e |
657 | } |
658 | } |
659 | |
660 | relem = firstrelem; |
661 | lelem = firstlelem; |
662 | ary = Null(AV*); |
663 | hash = Null(HV*); |
664 | while (lelem <= lastlelem) { |
bbce6d69 |
665 | TAINT_NOT; /* Each item stands on its own, taintwise. */ |
a0d0e21e |
666 | sv = *lelem++; |
667 | switch (SvTYPE(sv)) { |
668 | case SVt_PVAV: |
669 | ary = (AV*)sv; |
748a9306 |
670 | magic = SvMAGICAL(ary) != 0; |
a0d0e21e |
671 | |
672 | av_clear(ary); |
7e42bd57 |
673 | av_extend(ary, lastrelem - relem); |
a0d0e21e |
674 | i = 0; |
675 | while (relem <= lastrelem) { /* gobble up all the rest */ |
5117ca91 |
676 | SV **didstore; |
a0d0e21e |
677 | sv = NEWSV(28,0); |
678 | assert(*relem); |
679 | sv_setsv(sv,*relem); |
680 | *(relem++) = sv; |
5117ca91 |
681 | didstore = av_store(ary,i++,sv); |
682 | if (magic) { |
fb73857a |
683 | if (SvSMAGICAL(sv)) |
684 | mg_set(sv); |
5117ca91 |
685 | if (!didstore) |
8127e0e3 |
686 | sv_2mortal(sv); |
5117ca91 |
687 | } |
bbce6d69 |
688 | TAINT_NOT; |
a0d0e21e |
689 | } |
690 | break; |
691 | case SVt_PVHV: { |
a0d0e21e |
692 | SV *tmpstr; |
693 | |
694 | hash = (HV*)sv; |
748a9306 |
695 | magic = SvMAGICAL(hash) != 0; |
a0d0e21e |
696 | hv_clear(hash); |
697 | |
698 | while (relem < lastrelem) { /* gobble up all the rest */ |
5117ca91 |
699 | HE *didstore; |
4633a7c4 |
700 | if (*relem) |
a0d0e21e |
701 | sv = *(relem++); |
4633a7c4 |
702 | else |
3280af22 |
703 | sv = &PL_sv_no, relem++; |
a0d0e21e |
704 | tmpstr = NEWSV(29,0); |
705 | if (*relem) |
706 | sv_setsv(tmpstr,*relem); /* value */ |
707 | *(relem++) = tmpstr; |
5117ca91 |
708 | didstore = hv_store_ent(hash,sv,tmpstr,0); |
709 | if (magic) { |
fb73857a |
710 | if (SvSMAGICAL(tmpstr)) |
711 | mg_set(tmpstr); |
5117ca91 |
712 | if (!didstore) |
8127e0e3 |
713 | sv_2mortal(tmpstr); |
5117ca91 |
714 | } |
bbce6d69 |
715 | TAINT_NOT; |
8e07c86e |
716 | } |
6a0deba8 |
717 | if (relem == lastrelem) { |
718 | if (*relem) { |
719 | HE *didstore; |
e476b1b5 |
720 | if (ckWARN(WARN_MISC)) { |
6a0deba8 |
721 | if (relem == firstrelem && |
722 | SvROK(*relem) && |
723 | ( SvTYPE(SvRV(*relem)) == SVt_PVAV || |
724 | SvTYPE(SvRV(*relem)) == SVt_PVHV ) ) |
e476b1b5 |
725 | Perl_warner(aTHX_ WARN_MISC, "Reference found where even-sized list expected"); |
6a0deba8 |
726 | else |
e476b1b5 |
727 | Perl_warner(aTHX_ WARN_MISC, "Odd number of elements in hash assignment"); |
6a0deba8 |
728 | } |
729 | tmpstr = NEWSV(29,0); |
730 | didstore = hv_store_ent(hash,*relem,tmpstr,0); |
731 | if (magic) { |
732 | if (SvSMAGICAL(tmpstr)) |
733 | mg_set(tmpstr); |
734 | if (!didstore) |
8127e0e3 |
735 | sv_2mortal(tmpstr); |
6a0deba8 |
736 | } |
737 | TAINT_NOT; |
738 | } |
739 | relem++; |
1930e939 |
740 | } |
a0d0e21e |
741 | } |
742 | break; |
743 | default: |
6fc92669 |
744 | if (SvIMMORTAL(sv)) { |
745 | if (relem <= lastrelem) |
746 | relem++; |
747 | break; |
a0d0e21e |
748 | } |
749 | if (relem <= lastrelem) { |
750 | sv_setsv(sv, *relem); |
751 | *(relem++) = sv; |
752 | } |
753 | else |
3280af22 |
754 | sv_setsv(sv, &PL_sv_undef); |
a0d0e21e |
755 | SvSETMAGIC(sv); |
756 | break; |
757 | } |
758 | } |
3280af22 |
759 | if (PL_delaymagic & ~DM_DELAY) { |
760 | if (PL_delaymagic & DM_UID) { |
a0d0e21e |
761 | #ifdef HAS_SETRESUID |
b28d0864 |
762 | (void)setresuid(PL_uid,PL_euid,(Uid_t)-1); |
56febc5e |
763 | #else |
764 | # ifdef HAS_SETREUID |
3280af22 |
765 | (void)setreuid(PL_uid,PL_euid); |
56febc5e |
766 | # else |
767 | # ifdef HAS_SETRUID |
b28d0864 |
768 | if ((PL_delaymagic & DM_UID) == DM_RUID) { |
769 | (void)setruid(PL_uid); |
770 | PL_delaymagic &= ~DM_RUID; |
a0d0e21e |
771 | } |
56febc5e |
772 | # endif /* HAS_SETRUID */ |
773 | # ifdef HAS_SETEUID |
b28d0864 |
774 | if ((PL_delaymagic & DM_UID) == DM_EUID) { |
775 | (void)seteuid(PL_uid); |
776 | PL_delaymagic &= ~DM_EUID; |
a0d0e21e |
777 | } |
56febc5e |
778 | # endif /* HAS_SETEUID */ |
b28d0864 |
779 | if (PL_delaymagic & DM_UID) { |
780 | if (PL_uid != PL_euid) |
cea2e8a9 |
781 | DIE(aTHX_ "No setreuid available"); |
b28d0864 |
782 | (void)PerlProc_setuid(PL_uid); |
a0d0e21e |
783 | } |
56febc5e |
784 | # endif /* HAS_SETREUID */ |
785 | #endif /* HAS_SETRESUID */ |
d8eceb89 |
786 | PL_uid = PerlProc_getuid(); |
787 | PL_euid = PerlProc_geteuid(); |
a0d0e21e |
788 | } |
3280af22 |
789 | if (PL_delaymagic & DM_GID) { |
a0d0e21e |
790 | #ifdef HAS_SETRESGID |
b28d0864 |
791 | (void)setresgid(PL_gid,PL_egid,(Gid_t)-1); |
56febc5e |
792 | #else |
793 | # ifdef HAS_SETREGID |
3280af22 |
794 | (void)setregid(PL_gid,PL_egid); |
56febc5e |
795 | # else |
796 | # ifdef HAS_SETRGID |
b28d0864 |
797 | if ((PL_delaymagic & DM_GID) == DM_RGID) { |
798 | (void)setrgid(PL_gid); |
799 | PL_delaymagic &= ~DM_RGID; |
a0d0e21e |
800 | } |
56febc5e |
801 | # endif /* HAS_SETRGID */ |
802 | # ifdef HAS_SETEGID |
b28d0864 |
803 | if ((PL_delaymagic & DM_GID) == DM_EGID) { |
804 | (void)setegid(PL_gid); |
805 | PL_delaymagic &= ~DM_EGID; |
a0d0e21e |
806 | } |
56febc5e |
807 | # endif /* HAS_SETEGID */ |
b28d0864 |
808 | if (PL_delaymagic & DM_GID) { |
809 | if (PL_gid != PL_egid) |
cea2e8a9 |
810 | DIE(aTHX_ "No setregid available"); |
b28d0864 |
811 | (void)PerlProc_setgid(PL_gid); |
a0d0e21e |
812 | } |
56febc5e |
813 | # endif /* HAS_SETREGID */ |
814 | #endif /* HAS_SETRESGID */ |
d8eceb89 |
815 | PL_gid = PerlProc_getgid(); |
816 | PL_egid = PerlProc_getegid(); |
a0d0e21e |
817 | } |
3280af22 |
818 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
a0d0e21e |
819 | } |
3280af22 |
820 | PL_delaymagic = 0; |
54310121 |
821 | |
822 | gimme = GIMME_V; |
823 | if (gimme == G_VOID) |
824 | SP = firstrelem - 1; |
825 | else if (gimme == G_SCALAR) { |
826 | dTARGET; |
827 | SP = firstrelem; |
828 | SETi(lastrelem - firstrelem + 1); |
829 | } |
830 | else { |
a0d0e21e |
831 | if (ary || hash) |
832 | SP = lastrelem; |
833 | else |
834 | SP = firstrelem + (lastlelem - firstlelem); |
0c8c7a05 |
835 | lelem = firstlelem + (relem - firstrelem); |
5f05dabc |
836 | while (relem <= SP) |
3280af22 |
837 | *relem++ = (lelem <= lastlelem) ? *lelem++ : &PL_sv_undef; |
a0d0e21e |
838 | } |
54310121 |
839 | RETURN; |
a0d0e21e |
840 | } |
841 | |
8782bef2 |
842 | PP(pp_qr) |
843 | { |
844 | djSP; |
845 | register PMOP *pm = cPMOP; |
846 | SV *rv = sv_newmortal(); |
57668c4d |
847 | SV *sv = newSVrv(rv, "Regexp"); |
8782bef2 |
848 | sv_magic(sv,(SV*)ReREFCNT_inc(pm->op_pmregexp),'r',0,0); |
849 | RETURNX(PUSHs(rv)); |
850 | } |
851 | |
a0d0e21e |
852 | PP(pp_match) |
853 | { |
4e35701f |
854 | djSP; dTARG; |
a0d0e21e |
855 | register PMOP *pm = cPMOP; |
856 | register char *t; |
857 | register char *s; |
858 | char *strend; |
859 | I32 global; |
f722798b |
860 | I32 r_flags = REXEC_CHECKED; |
861 | char *truebase; /* Start of string */ |
d9f97599 |
862 | register REGEXP *rx = pm->op_pmregexp; |
b3eb6a9b |
863 | bool rxtainted; |
a0d0e21e |
864 | I32 gimme = GIMME; |
865 | STRLEN len; |
748a9306 |
866 | I32 minmatch = 0; |
3280af22 |
867 | I32 oldsave = PL_savestack_ix; |
f86702cc |
868 | I32 update_minmatch = 1; |
e60df1fa |
869 | I32 had_zerolen = 0; |
a0d0e21e |
870 | |
533c011a |
871 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e |
872 | TARG = POPs; |
873 | else { |
54b9620d |
874 | TARG = DEFSV; |
a0d0e21e |
875 | EXTEND(SP,1); |
876 | } |
c277df42 |
877 | PUTBACK; /* EVAL blocks need stack_sp. */ |
a0d0e21e |
878 | s = SvPV(TARG, len); |
879 | strend = s + len; |
880 | if (!s) |
cea2e8a9 |
881 | DIE(aTHX_ "panic: do_match"); |
b3eb6a9b |
882 | rxtainted = ((pm->op_pmdynflags & PMdf_TAINTED) || |
3280af22 |
883 | (PL_tainted && (pm->op_pmflags & PMf_RETAINT))); |
9212bbba |
884 | TAINT_NOT; |
a0d0e21e |
885 | |
48c036b1 |
886 | if (pm->op_pmdynflags & PMdf_USED) { |
c277df42 |
887 | failure: |
a0d0e21e |
888 | if (gimme == G_ARRAY) |
889 | RETURN; |
890 | RETPUSHNO; |
891 | } |
892 | |
3280af22 |
893 | if (!rx->prelen && PL_curpm) { |
894 | pm = PL_curpm; |
d9f97599 |
895 | rx = pm->op_pmregexp; |
a0d0e21e |
896 | } |
d9f97599 |
897 | if (rx->minlen > len) goto failure; |
c277df42 |
898 | |
a0d0e21e |
899 | truebase = t = s; |
ad94a511 |
900 | |
901 | /* XXXX What part of this is needed with true \G-support? */ |
a0d0e21e |
902 | if (global = pm->op_pmflags & PMf_GLOBAL) { |
cf93c79d |
903 | rx->startp[0] = -1; |
a0d0e21e |
904 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
905 | MAGIC* mg = mg_find(TARG, 'g'); |
565764a8 |
906 | if (mg && mg->mg_len >= 0) { |
b7a35066 |
907 | if (!(rx->reganch & ROPT_GPOS_SEEN)) |
cf93c79d |
908 | rx->endp[0] = rx->startp[0] = mg->mg_len; |
0ef3e39e |
909 | else if (rx->reganch & ROPT_ANCH_GPOS) { |
910 | r_flags |= REXEC_IGNOREPOS; |
cf93c79d |
911 | rx->endp[0] = rx->startp[0] = mg->mg_len; |
0ef3e39e |
912 | } |
748a9306 |
913 | minmatch = (mg->mg_flags & MGf_MINMATCH); |
f86702cc |
914 | update_minmatch = 0; |
748a9306 |
915 | } |
a0d0e21e |
916 | } |
917 | } |
0ef3e39e |
918 | if ((gimme != G_ARRAY && !global && rx->nparens) |
919 | || SvTEMP(TARG) || PL_sawampersand) |
920 | r_flags |= REXEC_COPY_STR; |
f722798b |
921 | if (SvSCREAM(TARG)) |
22e551b9 |
922 | r_flags |= REXEC_SCREAM; |
923 | |
a0d0e21e |
924 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
3280af22 |
925 | SAVEINT(PL_multiline); |
926 | PL_multiline = pm->op_pmflags & PMf_MULTILINE; |
a0d0e21e |
927 | } |
928 | |
929 | play_it_again: |
cf93c79d |
930 | if (global && rx->startp[0] != -1) { |
931 | t = s = rx->endp[0] + truebase; |
d9f97599 |
932 | if ((s + rx->minlen) > strend) |
a0d0e21e |
933 | goto nope; |
f86702cc |
934 | if (update_minmatch++) |
e60df1fa |
935 | minmatch = had_zerolen; |
a0d0e21e |
936 | } |
f722798b |
937 | if (rx->reganch & RE_USE_INTUIT) { |
938 | s = CALLREG_INTUIT_START(aTHX_ rx, TARG, s, strend, r_flags, NULL); |
939 | |
940 | if (!s) |
941 | goto nope; |
942 | if ( (rx->reganch & ROPT_CHECK_ALL) |
943 | && !PL_sawampersand |
944 | && ((rx->reganch & ROPT_NOSCAN) |
945 | || !((rx->reganch & RE_INTUIT_TAIL) |
946 | && (r_flags & REXEC_SCREAM)))) |
947 | goto yup; |
a0d0e21e |
948 | } |
cea2e8a9 |
949 | if (CALLREGEXEC(aTHX_ rx, s, strend, truebase, minmatch, TARG, NULL, r_flags)) |
bbce6d69 |
950 | { |
3280af22 |
951 | PL_curpm = pm; |
a0d0e21e |
952 | if (pm->op_pmflags & PMf_ONCE) |
48c036b1 |
953 | pm->op_pmdynflags |= PMdf_USED; |
a0d0e21e |
954 | goto gotcha; |
955 | } |
956 | else |
957 | goto ret_no; |
958 | /*NOTREACHED*/ |
959 | |
960 | gotcha: |
72311751 |
961 | if (rxtainted) |
962 | RX_MATCH_TAINTED_on(rx); |
963 | TAINT_IF(RX_MATCH_TAINTED(rx)); |
a0d0e21e |
964 | if (gimme == G_ARRAY) { |
965 | I32 iters, i, len; |
966 | |
d9f97599 |
967 | iters = rx->nparens; |
a0d0e21e |
968 | if (global && !iters) |
969 | i = 1; |
970 | else |
971 | i = 0; |
c277df42 |
972 | SPAGAIN; /* EVAL blocks could move the stack. */ |
a0d0e21e |
973 | EXTEND(SP, iters + i); |
bbce6d69 |
974 | EXTEND_MORTAL(iters + i); |
a0d0e21e |
975 | for (i = !i; i <= iters; i++) { |
976 | PUSHs(sv_newmortal()); |
977 | /*SUPPRESS 560*/ |
cf93c79d |
978 | if ((rx->startp[i] != -1) && rx->endp[i] != -1 ) { |
979 | len = rx->endp[i] - rx->startp[i]; |
980 | s = rx->startp[i] + truebase; |
a0d0e21e |
981 | sv_setpvn(*SP, s, len); |
982 | } |
983 | } |
984 | if (global) { |
cf93c79d |
985 | had_zerolen = (rx->startp[0] != -1 |
986 | && rx->startp[0] == rx->endp[0]); |
c277df42 |
987 | PUTBACK; /* EVAL blocks may use stack */ |
cf93c79d |
988 | r_flags |= REXEC_IGNOREPOS | REXEC_NOT_FIRST; |
a0d0e21e |
989 | goto play_it_again; |
990 | } |
f7e33566 |
991 | else if (!iters) |
bde848c5 |
992 | XPUSHs(&PL_sv_yes); |
4633a7c4 |
993 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
994 | RETURN; |
995 | } |
996 | else { |
997 | if (global) { |
998 | MAGIC* mg = 0; |
999 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) |
1000 | mg = mg_find(TARG, 'g'); |
1001 | if (!mg) { |
1002 | sv_magic(TARG, (SV*)0, 'g', Nullch, 0); |
1003 | mg = mg_find(TARG, 'g'); |
1004 | } |
cf93c79d |
1005 | if (rx->startp[0] != -1) { |
1006 | mg->mg_len = rx->endp[0]; |
d9f97599 |
1007 | if (rx->startp[0] == rx->endp[0]) |
748a9306 |
1008 | mg->mg_flags |= MGf_MINMATCH; |
1009 | else |
1010 | mg->mg_flags &= ~MGf_MINMATCH; |
1011 | } |
a0d0e21e |
1012 | } |
4633a7c4 |
1013 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1014 | RETPUSHYES; |
1015 | } |
1016 | |
f722798b |
1017 | yup: /* Confirmed by INTUIT */ |
72311751 |
1018 | if (rxtainted) |
1019 | RX_MATCH_TAINTED_on(rx); |
1020 | TAINT_IF(RX_MATCH_TAINTED(rx)); |
3280af22 |
1021 | PL_curpm = pm; |
a0d0e21e |
1022 | if (pm->op_pmflags & PMf_ONCE) |
48c036b1 |
1023 | pm->op_pmdynflags |= PMdf_USED; |
cf93c79d |
1024 | if (RX_MATCH_COPIED(rx)) |
1025 | Safefree(rx->subbeg); |
1026 | RX_MATCH_COPIED_off(rx); |
1027 | rx->subbeg = Nullch; |
a0d0e21e |
1028 | if (global) { |
d9f97599 |
1029 | rx->subbeg = truebase; |
cf93c79d |
1030 | rx->startp[0] = s - truebase; |
f722798b |
1031 | rx->endp[0] = s - truebase + rx->minlen; |
cf93c79d |
1032 | rx->sublen = strend - truebase; |
a0d0e21e |
1033 | goto gotcha; |
cf93c79d |
1034 | } |
3280af22 |
1035 | if (PL_sawampersand) { |
cf93c79d |
1036 | I32 off; |
a0d0e21e |
1037 | |
cf93c79d |
1038 | rx->subbeg = savepvn(t, strend - t); |
1039 | rx->sublen = strend - t; |
1040 | RX_MATCH_COPIED_on(rx); |
1041 | off = rx->startp[0] = s - t; |
f722798b |
1042 | rx->endp[0] = off + rx->minlen; |
cf93c79d |
1043 | } |
1044 | else { /* startp/endp are used by @- @+. */ |
1045 | rx->startp[0] = s - truebase; |
f722798b |
1046 | rx->endp[0] = s - truebase + rx->minlen; |
a0d0e21e |
1047 | } |
fc19f8d0 |
1048 | rx->nparens = rx->lastparen = 0; /* used by @- and @+ */ |
4633a7c4 |
1049 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1050 | RETPUSHYES; |
1051 | |
1052 | nope: |
a0d0e21e |
1053 | ret_no: |
c90c0ff4 |
1054 | if (global && !(pm->op_pmflags & PMf_CONTINUE)) { |
a0d0e21e |
1055 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
1056 | MAGIC* mg = mg_find(TARG, 'g'); |
1057 | if (mg) |
565764a8 |
1058 | mg->mg_len = -1; |
a0d0e21e |
1059 | } |
1060 | } |
4633a7c4 |
1061 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1062 | if (gimme == G_ARRAY) |
1063 | RETURN; |
1064 | RETPUSHNO; |
1065 | } |
1066 | |
1067 | OP * |
864dbfa3 |
1068 | Perl_do_readline(pTHX) |
a0d0e21e |
1069 | { |
1070 | dSP; dTARGETSTACKED; |
1071 | register SV *sv; |
1072 | STRLEN tmplen = 0; |
1073 | STRLEN offset; |
760ac839 |
1074 | PerlIO *fp; |
3280af22 |
1075 | register IO *io = GvIO(PL_last_in_gv); |
533c011a |
1076 | register I32 type = PL_op->op_type; |
54310121 |
1077 | I32 gimme = GIMME_V; |
e79b0511 |
1078 | MAGIC *mg; |
a0d0e21e |
1079 | |
33c27489 |
1080 | if (mg = SvTIED_mg((SV*)PL_last_in_gv, 'q')) { |
e79b0511 |
1081 | PUSHMARK(SP); |
33c27489 |
1082 | XPUSHs(SvTIED_obj((SV*)PL_last_in_gv, mg)); |
e79b0511 |
1083 | PUTBACK; |
1084 | ENTER; |
864dbfa3 |
1085 | call_method("READLINE", gimme); |
e79b0511 |
1086 | LEAVE; |
1087 | SPAGAIN; |
54310121 |
1088 | if (gimme == G_SCALAR) |
1089 | SvSetMagicSV_nosteal(TARG, TOPs); |
e79b0511 |
1090 | RETURN; |
1091 | } |
a0d0e21e |
1092 | fp = Nullfp; |
1093 | if (io) { |
1094 | fp = IoIFP(io); |
1095 | if (!fp) { |
1096 | if (IoFLAGS(io) & IOf_ARGV) { |
1097 | if (IoFLAGS(io) & IOf_START) { |
a0d0e21e |
1098 | IoLINES(io) = 0; |
3280af22 |
1099 | if (av_len(GvAVn(PL_last_in_gv)) < 0) { |
1d7c1841 |
1100 | IoFLAGS(io) &= ~IOf_START; |
9d116dd7 |
1101 | do_open(PL_last_in_gv,"-",1,FALSE,O_RDONLY,0,Nullfp); |
3280af22 |
1102 | sv_setpvn(GvSV(PL_last_in_gv), "-", 1); |
1103 | SvSETMAGIC(GvSV(PL_last_in_gv)); |
a2008d6d |
1104 | fp = IoIFP(io); |
1105 | goto have_fp; |
a0d0e21e |
1106 | } |
1107 | } |
3280af22 |
1108 | fp = nextargv(PL_last_in_gv); |
a0d0e21e |
1109 | if (!fp) { /* Note: fp != IoIFP(io) */ |
3280af22 |
1110 | (void)do_close(PL_last_in_gv, FALSE); /* now it does*/ |
a0d0e21e |
1111 | } |
1112 | } |
1113 | else if (type == OP_GLOB) { |
1114 | SV *tmpcmd = NEWSV(55, 0); |
1115 | SV *tmpglob = POPs; |
1116 | ENTER; |
1117 | SAVEFREESV(tmpcmd); |
1118 | #ifdef VMS /* expand the wildcards right here, rather than opening a pipe, */ |
1119 | /* since spawning off a process is a real performance hit */ |
1120 | { |
1121 | #include <descrip.h> |
1122 | #include <lib$routines.h> |
1123 | #include <nam.h> |
1124 | #include <rmsdef.h> |
1125 | char rslt[NAM$C_MAXRSS+1+sizeof(unsigned short int)] = {'\0','\0'}; |
1126 | char vmsspec[NAM$C_MAXRSS+1]; |
1127 | char *rstr = rslt + sizeof(unsigned short int), *begin, *end, *cp; |
1128 | char tmpfnam[L_tmpnam] = "SYS$SCRATCH:"; |
1129 | $DESCRIPTOR(dfltdsc,"SYS$DISK:[]*.*;"); |
760ac839 |
1130 | PerlIO *tmpfp; |
a0d0e21e |
1131 | STRLEN i; |
1132 | struct dsc$descriptor_s wilddsc |
1133 | = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0}; |
1134 | struct dsc$descriptor_vs rsdsc |
1135 | = {sizeof rslt, DSC$K_DTYPE_VT, DSC$K_CLASS_VS, rslt}; |
1136 | unsigned long int cxt = 0, sts = 0, ok = 1, hasdir = 0, hasver = 0, isunix = 0; |
1137 | |
1138 | /* We could find out if there's an explicit dev/dir or version |
1139 | by peeking into lib$find_file's internal context at |
1140 | ((struct NAM *)((struct FAB *)cxt)->fab$l_nam)->nam$l_fnb |
1141 | but that's unsupported, so I don't want to do it now and |
1142 | have it bite someone in the future. */ |
6ad3d225 |
1143 | strcat(tmpfnam,PerlLIO_tmpnam(NULL)); |
a0d0e21e |
1144 | cp = SvPV(tmpglob,i); |
1145 | for (; i; i--) { |
1146 | if (cp[i] == ';') hasver = 1; |
1147 | if (cp[i] == '.') { |
1148 | if (sts) hasver = 1; |
1149 | else sts = 1; |
1150 | } |
1151 | if (cp[i] == '/') { |
1152 | hasdir = isunix = 1; |
1153 | break; |
748a9306 |
1154 | } |
a0d0e21e |
1155 | if (cp[i] == ']' || cp[i] == '>' || cp[i] == ':') { |
1156 | hasdir = 1; |
1157 | break; |
1158 | } |
1159 | } |
760ac839 |
1160 | if ((tmpfp = PerlIO_open(tmpfnam,"w+","fop=dlt")) != NULL) { |
09b7f37c |
1161 | Stat_t st; |
c6ed36e1 |
1162 | if (!PerlLIO_stat(SvPVX(tmpglob),&st) && S_ISDIR(st.st_mode)) |
09b7f37c |
1163 | ok = ((wilddsc.dsc$a_pointer = tovmspath(SvPVX(tmpglob),vmsspec)) != NULL); |
1164 | else ok = ((wilddsc.dsc$a_pointer = tovmsspec(SvPVX(tmpglob),vmsspec)) != NULL); |
a0d0e21e |
1165 | if (ok) wilddsc.dsc$w_length = (unsigned short int) strlen(wilddsc.dsc$a_pointer); |
1166 | while (ok && ((sts = lib$find_file(&wilddsc,&rsdsc,&cxt, |
1167 | &dfltdsc,NULL,NULL,NULL))&1)) { |
1168 | end = rstr + (unsigned long int) *rslt; |
1169 | if (!hasver) while (*end != ';') end--; |
1170 | *(end++) = '\n'; *end = '\0'; |
1171 | for (cp = rstr; *cp; cp++) *cp = _tolower(*cp); |
1172 | if (hasdir) { |
f86702cc |
1173 | if (isunix) trim_unixpath(rstr,SvPVX(tmpglob),1); |
a0d0e21e |
1174 | begin = rstr; |
1175 | } |
1176 | else { |
1177 | begin = end; |
1178 | while (*(--begin) != ']' && *begin != '>') ; |
1179 | ++begin; |
1180 | } |
760ac839 |
1181 | ok = (PerlIO_puts(tmpfp,begin) != EOF); |
a0d0e21e |
1182 | } |
1183 | if (cxt) (void)lib$find_file_end(&cxt); |
748a9306 |
1184 | if (ok && sts != RMS$_NMF && |
1185 | sts != RMS$_DNF && sts != RMS$_FNF) ok = 0; |
a0d0e21e |
1186 | if (!ok) { |
c07a80fd |
1187 | if (!(sts & 1)) { |
1188 | SETERRNO((sts == RMS$_SYN ? EINVAL : EVMSERR),sts); |
1189 | } |
760ac839 |
1190 | PerlIO_close(tmpfp); |
a0d0e21e |
1191 | fp = NULL; |
1192 | } |
1193 | else { |
760ac839 |
1194 | PerlIO_rewind(tmpfp); |
a0d0e21e |
1195 | IoTYPE(io) = '<'; |
1196 | IoIFP(io) = fp = tmpfp; |
1e422769 |
1197 | IoFLAGS(io) &= ~IOf_UNTAINT; /* maybe redundant */ |
a0d0e21e |
1198 | } |
1199 | } |
1200 | } |
1201 | #else /* !VMS */ |
1d7c1841 |
1202 | #ifdef MACOS_TRADITIONAL |
1203 | sv_setpv(tmpcmd, "glob "); |
1204 | sv_catsv(tmpcmd, tmpglob); |
1205 | sv_catpv(tmpcmd, " |"); |
1206 | #else |
a0d0e21e |
1207 | #ifdef DOSISH |
67955e0c |
1208 | #ifdef OS2 |
1209 | sv_setpv(tmpcmd, "for a in "); |
1210 | sv_catsv(tmpcmd, tmpglob); |
1211 | sv_catpv(tmpcmd, "; do echo \"$a\\0\\c\"; done |"); |
1212 | #else |
39e571d4 |
1213 | #ifdef DJGPP |
1214 | sv_setpv(tmpcmd, "/dev/dosglob/"); /* File System Extension */ |
1215 | sv_catsv(tmpcmd, tmpglob); |
1216 | #else |
a0d0e21e |
1217 | sv_setpv(tmpcmd, "perlglob "); |
1218 | sv_catsv(tmpcmd, tmpglob); |
1219 | sv_catpv(tmpcmd, " |"); |
39e571d4 |
1220 | #endif /* !DJGPP */ |
67955e0c |
1221 | #endif /* !OS2 */ |
1222 | #else /* !DOSISH */ |
1223 | #if defined(CSH) |
3280af22 |
1224 | sv_setpvn(tmpcmd, PL_cshname, PL_cshlen); |
a0d0e21e |
1225 | sv_catpv(tmpcmd, " -cf 'set nonomatch; glob "); |
1226 | sv_catsv(tmpcmd, tmpglob); |
16d20bd9 |
1227 | sv_catpv(tmpcmd, "' 2>/dev/null |"); |
a0d0e21e |
1228 | #else |
1229 | sv_setpv(tmpcmd, "echo "); |
1230 | sv_catsv(tmpcmd, tmpglob); |
1231 | #if 'z' - 'a' == 25 |
1232 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\012\\012\\012\\012'|"); |
1233 | #else |
1234 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\n\\n\\n\\n'|"); |
1235 | #endif |
1236 | #endif /* !CSH */ |
67955e0c |
1237 | #endif /* !DOSISH */ |
1d7c1841 |
1238 | #endif /* MACOS_TRADITIONAL */ |
3280af22 |
1239 | (void)do_open(PL_last_in_gv, SvPVX(tmpcmd), SvCUR(tmpcmd), |
9d116dd7 |
1240 | FALSE, O_RDONLY, 0, Nullfp); |
a0d0e21e |
1241 | fp = IoIFP(io); |
1242 | #endif /* !VMS */ |
1243 | LEAVE; |
1244 | } |
1245 | } |
1246 | else if (type == OP_GLOB) |
1247 | SP--; |
af8c498a |
1248 | else if (ckWARN(WARN_IO) /* stdout/stderr or other write fh */ |
1249 | && (IoTYPE(io) == '>' || fp == PerlIO_stdout() |
1250 | || fp == PerlIO_stderr())) |
1251 | { |
1252 | SV* sv = sv_newmortal(); |
1253 | gv_efullname3(sv, PL_last_in_gv, Nullch); |
1254 | Perl_warner(aTHX_ WARN_IO, "Filehandle %s opened only for output", |
1255 | SvPV_nolen(sv)); |
1256 | } |
a0d0e21e |
1257 | } |
1258 | if (!fp) { |
e476b1b5 |
1259 | if (ckWARN2(WARN_GLOB,WARN_CLOSED) && io && !(IoFLAGS(io) & IOf_START)) { |
3f4520fe |
1260 | if (type == OP_GLOB) |
e476b1b5 |
1261 | Perl_warner(aTHX_ WARN_GLOB, |
af8c498a |
1262 | "glob failed (can't start child: %s)", |
1263 | Strerror(errno)); |
69282e91 |
1264 | else |
1265 | report_closed_fh(PL_last_in_gv, io, "readline", "filehandle"); |
3f4520fe |
1266 | } |
54310121 |
1267 | if (gimme == G_SCALAR) { |
a0d0e21e |
1268 | (void)SvOK_off(TARG); |
1269 | PUSHTARG; |
1270 | } |
1271 | RETURN; |
1272 | } |
a2008d6d |
1273 | have_fp: |
54310121 |
1274 | if (gimme == G_SCALAR) { |
a0d0e21e |
1275 | sv = TARG; |
9607fc9c |
1276 | if (SvROK(sv)) |
1277 | sv_unref(sv); |
a0d0e21e |
1278 | (void)SvUPGRADE(sv, SVt_PV); |
1279 | tmplen = SvLEN(sv); /* remember if already alloced */ |
1280 | if (!tmplen) |
1281 | Sv_Grow(sv, 80); /* try short-buffering it */ |
1282 | if (type == OP_RCATLINE) |
1283 | offset = SvCUR(sv); |
1284 | else |
1285 | offset = 0; |
1286 | } |
54310121 |
1287 | else { |
1288 | sv = sv_2mortal(NEWSV(57, 80)); |
1289 | offset = 0; |
1290 | } |
fbad3eb5 |
1291 | |
684bef36 |
1292 | /* delay EOF state for a snarfed empty file */ |
fbad3eb5 |
1293 | #define SNARF_EOF(gimme,rs,io,sv) \ |
684bef36 |
1294 | (gimme != G_SCALAR || SvCUR(sv) \ |
1295 | || !RsSNARF(rs) || (IoFLAGS(io) & IOf_NOLINE) \ |
1296 | || ((IoFLAGS(io) |= IOf_NOLINE), FALSE)) |
fbad3eb5 |
1297 | |
a0d0e21e |
1298 | for (;;) { |
fbad3eb5 |
1299 | if (!sv_gets(sv, fp, offset) |
1300 | && (type == OP_GLOB || SNARF_EOF(gimme, PL_rs, io, sv))) |
1301 | { |
760ac839 |
1302 | PerlIO_clearerr(fp); |
a0d0e21e |
1303 | if (IoFLAGS(io) & IOf_ARGV) { |
3280af22 |
1304 | fp = nextargv(PL_last_in_gv); |
a0d0e21e |
1305 | if (fp) |
1306 | continue; |
3280af22 |
1307 | (void)do_close(PL_last_in_gv, FALSE); |
a0d0e21e |
1308 | } |
1309 | else if (type == OP_GLOB) { |
e476b1b5 |
1310 | if (!do_close(PL_last_in_gv, FALSE) && ckWARN(WARN_GLOB)) { |
1311 | Perl_warner(aTHX_ WARN_GLOB, |
4eb79ab5 |
1312 | "glob failed (child exited with status %d%s)", |
894356b3 |
1313 | (int)(STATUS_CURRENT >> 8), |
cf494569 |
1314 | (STATUS_CURRENT & 0x80) ? ", core dumped" : ""); |
4eb79ab5 |
1315 | } |
a0d0e21e |
1316 | } |
54310121 |
1317 | if (gimme == G_SCALAR) { |
a0d0e21e |
1318 | (void)SvOK_off(TARG); |
1319 | PUSHTARG; |
1320 | } |
1321 | RETURN; |
1322 | } |
bbce6d69 |
1323 | /* This should not be marked tainted if the fp is marked clean */ |
1324 | if (!(IoFLAGS(io) & IOf_UNTAINT)) { |
1325 | TAINT; |
1326 | SvTAINTED_on(sv); |
1327 | } |
a0d0e21e |
1328 | IoLINES(io)++; |
71be2cbc |
1329 | SvSETMAGIC(sv); |
a0d0e21e |
1330 | XPUSHs(sv); |
a0d0e21e |
1331 | if (type == OP_GLOB) { |
1332 | char *tmps; |
1333 | |
3280af22 |
1334 | if (SvCUR(sv) > 0 && SvCUR(PL_rs) > 0) { |
c07a80fd |
1335 | tmps = SvEND(sv) - 1; |
3280af22 |
1336 | if (*tmps == *SvPVX(PL_rs)) { |
c07a80fd |
1337 | *tmps = '\0'; |
1338 | SvCUR(sv)--; |
1339 | } |
1340 | } |
a0d0e21e |
1341 | for (tmps = SvPVX(sv); *tmps; tmps++) |
1342 | if (!isALPHA(*tmps) && !isDIGIT(*tmps) && |
1343 | strchr("$&*(){}[]'\";\\|?<>~`", *tmps)) |
1344 | break; |
43384a1a |
1345 | if (*tmps && PerlLIO_lstat(SvPVX(sv), &PL_statbuf) < 0) { |
a0d0e21e |
1346 | (void)POPs; /* Unmatched wildcard? Chuck it... */ |
1347 | continue; |
1348 | } |
1349 | } |
54310121 |
1350 | if (gimme == G_ARRAY) { |
a0d0e21e |
1351 | if (SvLEN(sv) - SvCUR(sv) > 20) { |
1352 | SvLEN_set(sv, SvCUR(sv)+1); |
1353 | Renew(SvPVX(sv), SvLEN(sv), char); |
1354 | } |
1355 | sv = sv_2mortal(NEWSV(58, 80)); |
1356 | continue; |
1357 | } |
54310121 |
1358 | else if (gimme == G_SCALAR && !tmplen && SvLEN(sv) - SvCUR(sv) > 80) { |
a0d0e21e |
1359 | /* try to reclaim a bit of scalar space (only on 1st alloc) */ |
1360 | if (SvCUR(sv) < 60) |
1361 | SvLEN_set(sv, 80); |
1362 | else |
1363 | SvLEN_set(sv, SvCUR(sv)+40); /* allow some slop */ |
1364 | Renew(SvPVX(sv), SvLEN(sv), char); |
1365 | } |
1366 | RETURN; |
1367 | } |
1368 | } |
1369 | |
1370 | PP(pp_enter) |
1371 | { |
4e35701f |
1372 | djSP; |
c09156bb |
1373 | register PERL_CONTEXT *cx; |
533c011a |
1374 | I32 gimme = OP_GIMME(PL_op, -1); |
a0d0e21e |
1375 | |
54310121 |
1376 | if (gimme == -1) { |
1377 | if (cxstack_ix >= 0) |
1378 | gimme = cxstack[cxstack_ix].blk_gimme; |
1379 | else |
1380 | gimme = G_SCALAR; |
1381 | } |
a0d0e21e |
1382 | |
1383 | ENTER; |
1384 | |
1385 | SAVETMPS; |
924508f0 |
1386 | PUSHBLOCK(cx, CXt_BLOCK, SP); |
a0d0e21e |
1387 | |
1388 | RETURN; |
1389 | } |
1390 | |
1391 | PP(pp_helem) |
1392 | { |
4e35701f |
1393 | djSP; |
760ac839 |
1394 | HE* he; |
ae77835f |
1395 | SV **svp; |
a0d0e21e |
1396 | SV *keysv = POPs; |
a0d0e21e |
1397 | HV *hv = (HV*)POPs; |
533c011a |
1398 | U32 lval = PL_op->op_flags & OPf_MOD; |
1399 | U32 defer = PL_op->op_private & OPpLVAL_DEFER; |
be6c24e0 |
1400 | SV *sv; |
a0d0e21e |
1401 | |
ae77835f |
1402 | if (SvTYPE(hv) == SVt_PVHV) { |
1403 | he = hv_fetch_ent(hv, keysv, lval && !defer, 0); |
97fcbf96 |
1404 | svp = he ? &HeVAL(he) : 0; |
ae77835f |
1405 | } |
1406 | else if (SvTYPE(hv) == SVt_PVAV) { |
0ebe0038 |
1407 | if (PL_op->op_private & OPpLVAL_INTRO) |
cea2e8a9 |
1408 | DIE(aTHX_ "Can't localize pseudo-hash element"); |
97fcbf96 |
1409 | svp = avhv_fetch_ent((AV*)hv, keysv, lval && !defer, 0); |
ae77835f |
1410 | } |
c750a3ec |
1411 | else { |
a0d0e21e |
1412 | RETPUSHUNDEF; |
c750a3ec |
1413 | } |
a0d0e21e |
1414 | if (lval) { |
3280af22 |
1415 | if (!svp || *svp == &PL_sv_undef) { |
68dc0745 |
1416 | SV* lv; |
1417 | SV* key2; |
2d8e6c8d |
1418 | if (!defer) { |
1419 | STRLEN n_a; |
cea2e8a9 |
1420 | DIE(aTHX_ PL_no_helem, SvPV(keysv, n_a)); |
2d8e6c8d |
1421 | } |
68dc0745 |
1422 | lv = sv_newmortal(); |
1423 | sv_upgrade(lv, SVt_PVLV); |
1424 | LvTYPE(lv) = 'y'; |
1425 | sv_magic(lv, key2 = newSVsv(keysv), 'y', Nullch, 0); |
1426 | SvREFCNT_dec(key2); /* sv_magic() increments refcount */ |
1427 | LvTARG(lv) = SvREFCNT_inc(hv); |
1428 | LvTARGLEN(lv) = 1; |
1429 | PUSHs(lv); |
1430 | RETURN; |
1431 | } |
533c011a |
1432 | if (PL_op->op_private & OPpLVAL_INTRO) { |
ae77835f |
1433 | if (HvNAME(hv) && isGV(*svp)) |
533c011a |
1434 | save_gp((GV*)*svp, !(PL_op->op_flags & OPf_SPECIAL)); |
5f05dabc |
1435 | else |
161b7d16 |
1436 | save_helem(hv, keysv, svp); |
5f05dabc |
1437 | } |
533c011a |
1438 | else if (PL_op->op_private & OPpDEREF) |
1439 | vivify_ref(*svp, PL_op->op_private & OPpDEREF); |
a0d0e21e |
1440 | } |
3280af22 |
1441 | sv = (svp ? *svp : &PL_sv_undef); |
be6c24e0 |
1442 | /* This makes C<local $tied{foo} = $tied{foo}> possible. |
1443 | * Pushing the magical RHS on to the stack is useless, since |
1444 | * that magic is soon destined to be misled by the local(), |
1445 | * and thus the later pp_sassign() will fail to mg_get() the |
1446 | * old value. This should also cure problems with delayed |
1447 | * mg_get()s. GSAR 98-07-03 */ |
1448 | if (!lval && SvGMAGICAL(sv)) |
1449 | sv = sv_mortalcopy(sv); |
1450 | PUSHs(sv); |
a0d0e21e |
1451 | RETURN; |
1452 | } |
1453 | |
1454 | PP(pp_leave) |
1455 | { |
4e35701f |
1456 | djSP; |
c09156bb |
1457 | register PERL_CONTEXT *cx; |
a0d0e21e |
1458 | register SV **mark; |
1459 | SV **newsp; |
1460 | PMOP *newpm; |
1461 | I32 gimme; |
1462 | |
533c011a |
1463 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e |
1464 | cx = &cxstack[cxstack_ix]; |
3280af22 |
1465 | cx->blk_oldpm = PL_curpm; /* fake block should preserve $1 et al */ |
a0d0e21e |
1466 | } |
1467 | |
1468 | POPBLOCK(cx,newpm); |
1469 | |
533c011a |
1470 | gimme = OP_GIMME(PL_op, -1); |
54310121 |
1471 | if (gimme == -1) { |
1472 | if (cxstack_ix >= 0) |
1473 | gimme = cxstack[cxstack_ix].blk_gimme; |
1474 | else |
1475 | gimme = G_SCALAR; |
1476 | } |
a0d0e21e |
1477 | |
a1f49e72 |
1478 | TAINT_NOT; |
54310121 |
1479 | if (gimme == G_VOID) |
1480 | SP = newsp; |
1481 | else if (gimme == G_SCALAR) { |
1482 | MARK = newsp + 1; |
1483 | if (MARK <= SP) |
1484 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) |
1485 | *MARK = TOPs; |
1486 | else |
1487 | *MARK = sv_mortalcopy(TOPs); |
a0d0e21e |
1488 | else { |
54310121 |
1489 | MEXTEND(mark,0); |
3280af22 |
1490 | *MARK = &PL_sv_undef; |
a0d0e21e |
1491 | } |
54310121 |
1492 | SP = MARK; |
a0d0e21e |
1493 | } |
54310121 |
1494 | else if (gimme == G_ARRAY) { |
a1f49e72 |
1495 | /* in case LEAVE wipes old return values */ |
1496 | for (mark = newsp + 1; mark <= SP; mark++) { |
1497 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) { |
a0d0e21e |
1498 | *mark = sv_mortalcopy(*mark); |
a1f49e72 |
1499 | TAINT_NOT; /* Each item is independent */ |
1500 | } |
1501 | } |
a0d0e21e |
1502 | } |
3280af22 |
1503 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e |
1504 | |
1505 | LEAVE; |
1506 | |
1507 | RETURN; |
1508 | } |
1509 | |
1510 | PP(pp_iter) |
1511 | { |
4e35701f |
1512 | djSP; |
c09156bb |
1513 | register PERL_CONTEXT *cx; |
5f05dabc |
1514 | SV* sv; |
4633a7c4 |
1515 | AV* av; |
1d7c1841 |
1516 | SV **itersvp; |
a0d0e21e |
1517 | |
924508f0 |
1518 | EXTEND(SP, 1); |
a0d0e21e |
1519 | cx = &cxstack[cxstack_ix]; |
6b35e009 |
1520 | if (CxTYPE(cx) != CXt_LOOP) |
cea2e8a9 |
1521 | DIE(aTHX_ "panic: pp_iter"); |
a0d0e21e |
1522 | |
1d7c1841 |
1523 | itersvp = CxITERVAR(cx); |
4633a7c4 |
1524 | av = cx->blk_loop.iterary; |
89ea2908 |
1525 | if (SvTYPE(av) != SVt_PVAV) { |
1526 | /* iterate ($min .. $max) */ |
1527 | if (cx->blk_loop.iterlval) { |
1528 | /* string increment */ |
1529 | register SV* cur = cx->blk_loop.iterlval; |
1530 | STRLEN maxlen; |
1531 | char *max = SvPV((SV*)av, maxlen); |
1532 | if (!SvNIOK(cur) && SvCUR(cur) <= maxlen) { |
eaa5c2d6 |
1533 | #ifndef USE_THREADS /* don't risk potential race */ |
1d7c1841 |
1534 | if (SvREFCNT(*itersvp) == 1 && !SvMAGICAL(*itersvp)) { |
eaa5c2d6 |
1535 | /* safe to reuse old SV */ |
1d7c1841 |
1536 | sv_setsv(*itersvp, cur); |
eaa5c2d6 |
1537 | } |
1538 | else |
1539 | #endif |
1540 | { |
1541 | /* we need a fresh SV every time so that loop body sees a |
1542 | * completely new SV for closures/references to work as |
1543 | * they used to */ |
1d7c1841 |
1544 | SvREFCNT_dec(*itersvp); |
1545 | *itersvp = newSVsv(cur); |
eaa5c2d6 |
1546 | } |
89ea2908 |
1547 | if (strEQ(SvPVX(cur), max)) |
1548 | sv_setiv(cur, 0); /* terminate next time */ |
1549 | else |
1550 | sv_inc(cur); |
1551 | RETPUSHYES; |
1552 | } |
1553 | RETPUSHNO; |
1554 | } |
1555 | /* integer increment */ |
1556 | if (cx->blk_loop.iterix > cx->blk_loop.itermax) |
1557 | RETPUSHNO; |
7f61b687 |
1558 | |
eaa5c2d6 |
1559 | #ifndef USE_THREADS /* don't risk potential race */ |
1d7c1841 |
1560 | if (SvREFCNT(*itersvp) == 1 && !SvMAGICAL(*itersvp)) { |
eaa5c2d6 |
1561 | /* safe to reuse old SV */ |
1d7c1841 |
1562 | sv_setiv(*itersvp, cx->blk_loop.iterix++); |
eaa5c2d6 |
1563 | } |
1564 | else |
1565 | #endif |
1566 | { |
1567 | /* we need a fresh SV every time so that loop body sees a |
1568 | * completely new SV for closures/references to work as they |
1569 | * used to */ |
1d7c1841 |
1570 | SvREFCNT_dec(*itersvp); |
1571 | *itersvp = newSViv(cx->blk_loop.iterix++); |
eaa5c2d6 |
1572 | } |
89ea2908 |
1573 | RETPUSHYES; |
1574 | } |
1575 | |
1576 | /* iterate array */ |
3280af22 |
1577 | if (cx->blk_loop.iterix >= (av == PL_curstack ? cx->blk_oldsp : AvFILL(av))) |
4633a7c4 |
1578 | RETPUSHNO; |
a0d0e21e |
1579 | |
1d7c1841 |
1580 | SvREFCNT_dec(*itersvp); |
a0d0e21e |
1581 | |
93965878 |
1582 | if (sv = (SvMAGICAL(av)) |
1583 | ? *av_fetch(av, ++cx->blk_loop.iterix, FALSE) |
1584 | : AvARRAY(av)[++cx->blk_loop.iterix]) |
a0d0e21e |
1585 | SvTEMP_off(sv); |
a0d0e21e |
1586 | else |
3280af22 |
1587 | sv = &PL_sv_undef; |
1588 | if (av != PL_curstack && SvIMMORTAL(sv)) { |
5f05dabc |
1589 | SV *lv = cx->blk_loop.iterlval; |
71be2cbc |
1590 | if (lv && SvREFCNT(lv) > 1) { |
1591 | SvREFCNT_dec(lv); |
1592 | lv = Nullsv; |
1593 | } |
5f05dabc |
1594 | if (lv) |
1595 | SvREFCNT_dec(LvTARG(lv)); |
1596 | else { |
68dc0745 |
1597 | lv = cx->blk_loop.iterlval = NEWSV(26, 0); |
5f05dabc |
1598 | sv_upgrade(lv, SVt_PVLV); |
5f05dabc |
1599 | LvTYPE(lv) = 'y'; |
68dc0745 |
1600 | sv_magic(lv, Nullsv, 'y', Nullch, 0); |
5f05dabc |
1601 | } |
1602 | LvTARG(lv) = SvREFCNT_inc(av); |
1603 | LvTARGOFF(lv) = cx->blk_loop.iterix; |
42718184 |
1604 | LvTARGLEN(lv) = (STRLEN)UV_MAX; |
5f05dabc |
1605 | sv = (SV*)lv; |
1606 | } |
a0d0e21e |
1607 | |
1d7c1841 |
1608 | *itersvp = SvREFCNT_inc(sv); |
a0d0e21e |
1609 | RETPUSHYES; |
1610 | } |
1611 | |
1612 | PP(pp_subst) |
1613 | { |
4e35701f |
1614 | djSP; dTARG; |
a0d0e21e |
1615 | register PMOP *pm = cPMOP; |
1616 | PMOP *rpm = pm; |
1617 | register SV *dstr; |
1618 | register char *s; |
1619 | char *strend; |
1620 | register char *m; |
1621 | char *c; |
1622 | register char *d; |
1623 | STRLEN clen; |
1624 | I32 iters = 0; |
1625 | I32 maxiters; |
1626 | register I32 i; |
1627 | bool once; |
71be2cbc |
1628 | bool rxtainted; |
a0d0e21e |
1629 | char *orig; |
22e551b9 |
1630 | I32 r_flags; |
d9f97599 |
1631 | register REGEXP *rx = pm->op_pmregexp; |
a0d0e21e |
1632 | STRLEN len; |
1633 | int force_on_match = 0; |
3280af22 |
1634 | I32 oldsave = PL_savestack_ix; |
c277df42 |
1635 | I32 update_minmatch = 1; |
a0d0e21e |
1636 | |
5cd24f17 |
1637 | /* known replacement string? */ |
1638 | dstr = (pm->op_pmflags & PMf_CONST) ? POPs : Nullsv; |
533c011a |
1639 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e |
1640 | TARG = POPs; |
1641 | else { |
54b9620d |
1642 | TARG = DEFSV; |
a0d0e21e |
1643 | EXTEND(SP,1); |
8ec5e241 |
1644 | } |
68dc0745 |
1645 | if (SvREADONLY(TARG) |
1646 | || (SvTYPE(TARG) > SVt_PVLV |
1647 | && !(SvTYPE(TARG) == SVt_PVGV && SvFAKE(TARG)))) |
d470f89e |
1648 | DIE(aTHX_ PL_no_modify); |
8ec5e241 |
1649 | PUTBACK; |
1650 | |
a0d0e21e |
1651 | s = SvPV(TARG, len); |
68dc0745 |
1652 | if (!SvPOKp(TARG) || SvTYPE(TARG) == SVt_PVGV) |
a0d0e21e |
1653 | force_on_match = 1; |
b3eb6a9b |
1654 | rxtainted = ((pm->op_pmdynflags & PMdf_TAINTED) || |
3280af22 |
1655 | (PL_tainted && (pm->op_pmflags & PMf_RETAINT))); |
1656 | if (PL_tainted) |
b3eb6a9b |
1657 | rxtainted |= 2; |
9212bbba |
1658 | TAINT_NOT; |
a0d0e21e |
1659 | |
1660 | force_it: |
1661 | if (!pm || !s) |
cea2e8a9 |
1662 | DIE(aTHX_ "panic: do_subst"); |
a0d0e21e |
1663 | |
1664 | strend = s + len; |
2beec16e |
1665 | maxiters = 2*(strend - s) + 10; /* We can match twice at each |
1666 | position, once with zero-length, |
1667 | second time with non-zero. */ |
a0d0e21e |
1668 | |
3280af22 |
1669 | if (!rx->prelen && PL_curpm) { |
1670 | pm = PL_curpm; |
d9f97599 |
1671 | rx = pm->op_pmregexp; |
a0d0e21e |
1672 | } |
22e551b9 |
1673 | r_flags = (rx->nparens || SvTEMP(TARG) || PL_sawampersand) |
9d080a66 |
1674 | ? REXEC_COPY_STR : 0; |
f722798b |
1675 | if (SvSCREAM(TARG)) |
22e551b9 |
1676 | r_flags |= REXEC_SCREAM; |
a0d0e21e |
1677 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
3280af22 |
1678 | SAVEINT(PL_multiline); |
1679 | PL_multiline = pm->op_pmflags & PMf_MULTILINE; |
a0d0e21e |
1680 | } |
1681 | orig = m = s; |
f722798b |
1682 | if (rx->reganch & RE_USE_INTUIT) { |
1683 | s = CALLREG_INTUIT_START(aTHX_ rx, TARG, s, strend, r_flags, NULL); |
1684 | |
1685 | if (!s) |
1686 | goto nope; |
1687 | /* How to do it in subst? */ |
1688 | /* if ( (rx->reganch & ROPT_CHECK_ALL) |
1689 | && !PL_sawampersand |
1690 | && ((rx->reganch & ROPT_NOSCAN) |
1691 | || !((rx->reganch & RE_INTUIT_TAIL) |
1692 | && (r_flags & REXEC_SCREAM)))) |
1693 | goto yup; |
1694 | */ |
a0d0e21e |
1695 | } |
71be2cbc |
1696 | |
1697 | /* only replace once? */ |
a0d0e21e |
1698 | once = !(rpm->op_pmflags & PMf_GLOBAL); |
71be2cbc |
1699 | |
1700 | /* known replacement string? */ |
5cd24f17 |
1701 | c = dstr ? SvPV(dstr, clen) : Nullch; |
71be2cbc |
1702 | |
1703 | /* can do inplace substitution? */ |
22e551b9 |
1704 | if (c && clen <= rx->minlen && (once || !(r_flags & REXEC_COPY_STR)) |
d9f97599 |
1705 | && !(rx->reganch & ROPT_LOOKBEHIND_SEEN)) { |
f722798b |
1706 | if (!CALLREGEXEC(aTHX_ rx, s, strend, orig, 0, TARG, NULL, |
1707 | r_flags | REXEC_CHECKED)) |
1708 | { |
8ec5e241 |
1709 | SPAGAIN; |
3280af22 |
1710 | PUSHs(&PL_sv_no); |
71be2cbc |
1711 | LEAVE_SCOPE(oldsave); |
1712 | RETURN; |
1713 | } |
1714 | if (force_on_match) { |
1715 | force_on_match = 0; |
1716 | s = SvPV_force(TARG, len); |
1717 | goto force_it; |
1718 | } |
71be2cbc |
1719 | d = s; |
3280af22 |
1720 | PL_curpm = pm; |
71be2cbc |
1721 | SvSCREAM_off(TARG); /* disable possible screamer */ |
1722 | if (once) { |
48c036b1 |
1723 | rxtainted |= RX_MATCH_TAINTED(rx); |
cf93c79d |
1724 | m = orig + rx->startp[0]; |
1725 | d = orig + rx->endp[0]; |
71be2cbc |
1726 | s = orig; |
1727 | if (m - s > strend - d) { /* faster to shorten from end */ |
1728 | if (clen) { |
1729 | Copy(c, m, clen, char); |
1730 | m += clen; |
a0d0e21e |
1731 | } |
71be2cbc |
1732 | i = strend - d; |
1733 | if (i > 0) { |
1734 | Move(d, m, i, char); |
1735 | m += i; |
a0d0e21e |
1736 | } |
71be2cbc |
1737 | *m = '\0'; |
1738 | SvCUR_set(TARG, m - s); |
1739 | } |
1740 | /*SUPPRESS 560*/ |
1741 | else if (i = m - s) { /* faster from front */ |
1742 | d -= clen; |
1743 | m = d; |
1744 | sv_chop(TARG, d-i); |
1745 | s += i; |
1746 | while (i--) |
1747 | *--d = *--s; |
1748 | if (clen) |
1749 | Copy(c, m, clen, char); |
1750 | } |
1751 | else if (clen) { |
1752 | d -= clen; |
1753 | sv_chop(TARG, d); |
1754 | Copy(c, d, clen, char); |
1755 | } |
1756 | else { |
1757 | sv_chop(TARG, d); |
1758 | } |
48c036b1 |
1759 | TAINT_IF(rxtainted & 1); |
8ec5e241 |
1760 | SPAGAIN; |
3280af22 |
1761 | PUSHs(&PL_sv_yes); |
71be2cbc |
1762 | } |
1763 | else { |
71be2cbc |
1764 | do { |
1765 | if (iters++ > maxiters) |
cea2e8a9 |
1766 | DIE(aTHX_ "Substitution loop"); |
d9f97599 |
1767 | rxtainted |= RX_MATCH_TAINTED(rx); |
cf93c79d |
1768 | m = rx->startp[0] + orig; |
71be2cbc |
1769 | /*SUPPRESS 560*/ |
1770 | if (i = m - s) { |
1771 | if (s != d) |
1772 | Move(s, d, i, char); |
1773 | d += i; |
a0d0e21e |
1774 | } |
71be2cbc |
1775 | if (clen) { |
1776 | Copy(c, d, clen, char); |
1777 | d += clen; |
1778 | } |
cf93c79d |
1779 | s = rx->endp[0] + orig; |
cea2e8a9 |
1780 | } while (CALLREGEXEC(aTHX_ rx, s, strend, orig, s == m, |
f722798b |
1781 | TARG, NULL, |
1782 | /* don't match same null twice */ |
1783 | REXEC_NOT_FIRST|REXEC_IGNOREPOS)); |
71be2cbc |
1784 | if (s != d) { |
1785 | i = strend - s; |
1786 | SvCUR_set(TARG, d - SvPVX(TARG) + i); |
1787 | Move(s, d, i+1, char); /* include the NUL */ |
a0d0e21e |
1788 | } |
48c036b1 |
1789 | TAINT_IF(rxtainted & 1); |
8ec5e241 |
1790 | SPAGAIN; |
71be2cbc |
1791 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
a0d0e21e |
1792 | } |
71be2cbc |
1793 | (void)SvPOK_only(TARG); |
48c036b1 |
1794 | TAINT_IF(rxtainted); |
8ec5e241 |
1795 | if (SvSMAGICAL(TARG)) { |
1796 | PUTBACK; |
1797 | mg_set(TARG); |
1798 | SPAGAIN; |
1799 | } |
9212bbba |
1800 | SvTAINT(TARG); |
71be2cbc |
1801 | LEAVE_SCOPE(oldsave); |
1802 | RETURN; |
a0d0e21e |
1803 | } |
71be2cbc |
1804 | |
f722798b |
1805 | if (CALLREGEXEC(aTHX_ rx, s, strend, orig, 0, TARG, NULL, |
1806 | r_flags | REXEC_CHECKED)) |
1807 | { |
a0d0e21e |
1808 | if (force_on_match) { |
1809 | force_on_match = 0; |
1810 | s = SvPV_force(TARG, len); |
1811 | goto force_it; |
1812 | } |
48c036b1 |
1813 | rxtainted |= RX_MATCH_TAINTED(rx); |
8ec5e241 |
1814 | dstr = NEWSV(25, len); |
a0d0e21e |
1815 | sv_setpvn(dstr, m, s-m); |
3280af22 |
1816 | PL_curpm = pm; |
a0d0e21e |
1817 | if (!c) { |
c09156bb |
1818 | register PERL_CONTEXT *cx; |
8ec5e241 |
1819 | SPAGAIN; |
a0d0e21e |
1820 | PUSHSUBST(cx); |
1821 | RETURNOP(cPMOP->op_pmreplroot); |
1822 | } |
cf93c79d |
1823 | r_flags |= REXEC_IGNOREPOS | REXEC_NOT_FIRST; |
a0d0e21e |
1824 | do { |
1825 | if (iters++ > maxiters) |
cea2e8a9 |
1826 | DIE(aTHX_ "Substitution loop"); |
d9f97599 |
1827 | rxtainted |= RX_MATCH_TAINTED(rx); |
cf93c79d |
1828 | if (RX_MATCH_COPIED(rx) && rx->subbeg != orig) { |
a0d0e21e |
1829 | m = s; |
1830 | s = orig; |
cf93c79d |
1831 | orig = rx->subbeg; |
a0d0e21e |
1832 | s = orig + (m - s); |
1833 | strend = s + (strend - m); |
1834 | } |
cf93c79d |
1835 | m = rx->startp[0] + orig; |
a0d0e21e |
1836 | sv_catpvn(dstr, s, m-s); |
cf93c79d |
1837 | s = rx->endp[0] + orig; |
a0d0e21e |
1838 | if (clen) |
1839 | sv_catpvn(dstr, c, clen); |
1840 | if (once) |
1841 | break; |
cea2e8a9 |
1842 | } while (CALLREGEXEC(aTHX_ rx, s, strend, orig, s == m, TARG, NULL, r_flags)); |
a0d0e21e |
1843 | sv_catpvn(dstr, s, strend - s); |
748a9306 |
1844 | |
4633a7c4 |
1845 | (void)SvOOK_off(TARG); |
cb0b1708 |
1846 | Safefree(SvPVX(TARG)); |
748a9306 |
1847 | SvPVX(TARG) = SvPVX(dstr); |
1848 | SvCUR_set(TARG, SvCUR(dstr)); |
1849 | SvLEN_set(TARG, SvLEN(dstr)); |
1850 | SvPVX(dstr) = 0; |
1851 | sv_free(dstr); |
1852 | |
48c036b1 |
1853 | TAINT_IF(rxtainted & 1); |
f878fbec |
1854 | SPAGAIN; |
48c036b1 |
1855 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
1856 | |
a0d0e21e |
1857 | (void)SvPOK_only(TARG); |
48c036b1 |
1858 | TAINT_IF(rxtainted); |
a0d0e21e |
1859 | SvSETMAGIC(TARG); |
9212bbba |
1860 | SvTAINT(TARG); |
4633a7c4 |
1861 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1862 | RETURN; |
1863 | } |
5cd24f17 |
1864 | goto ret_no; |
a0d0e21e |
1865 | |
1866 | nope: |
8ec5e241 |
1867 | ret_no: |
1868 | SPAGAIN; |
3280af22 |
1869 | PUSHs(&PL_sv_no); |
4633a7c4 |
1870 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1871 | RETURN; |
1872 | } |
1873 | |
1874 | PP(pp_grepwhile) |
1875 | { |
4e35701f |
1876 | djSP; |
a0d0e21e |
1877 | |
1878 | if (SvTRUEx(POPs)) |
3280af22 |
1879 | PL_stack_base[PL_markstack_ptr[-1]++] = PL_stack_base[*PL_markstack_ptr]; |
1880 | ++*PL_markstack_ptr; |
a0d0e21e |
1881 | LEAVE; /* exit inner scope */ |
1882 | |
1883 | /* All done yet? */ |
3280af22 |
1884 | if (PL_stack_base + *PL_markstack_ptr > SP) { |
a0d0e21e |
1885 | I32 items; |
54310121 |
1886 | I32 gimme = GIMME_V; |
a0d0e21e |
1887 | |
1888 | LEAVE; /* exit outer scope */ |
1889 | (void)POPMARK; /* pop src */ |
3280af22 |
1890 | items = --*PL_markstack_ptr - PL_markstack_ptr[-1]; |
a0d0e21e |
1891 | (void)POPMARK; /* pop dst */ |
3280af22 |
1892 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
54310121 |
1893 | if (gimme == G_SCALAR) { |
a0d0e21e |
1894 | dTARGET; |
1895 | XPUSHi(items); |
a0d0e21e |
1896 | } |
54310121 |
1897 | else if (gimme == G_ARRAY) |
1898 | SP += items; |
a0d0e21e |
1899 | RETURN; |
1900 | } |
1901 | else { |
1902 | SV *src; |
1903 | |
1904 | ENTER; /* enter inner scope */ |
1d7c1841 |
1905 | SAVEVPTR(PL_curpm); |
a0d0e21e |
1906 | |
3280af22 |
1907 | src = PL_stack_base[*PL_markstack_ptr]; |
a0d0e21e |
1908 | SvTEMP_off(src); |
54b9620d |
1909 | DEFSV = src; |
a0d0e21e |
1910 | |
1911 | RETURNOP(cLOGOP->op_other); |
1912 | } |
1913 | } |
1914 | |
1915 | PP(pp_leavesub) |
1916 | { |
4e35701f |
1917 | djSP; |
a0d0e21e |
1918 | SV **mark; |
1919 | SV **newsp; |
1920 | PMOP *newpm; |
1921 | I32 gimme; |
c09156bb |
1922 | register PERL_CONTEXT *cx; |
b0d9ce38 |
1923 | SV *sv; |
a0d0e21e |
1924 | |
1925 | POPBLOCK(cx,newpm); |
f86702cc |
1926 | |
a1f49e72 |
1927 | TAINT_NOT; |
a0d0e21e |
1928 | if (gimme == G_SCALAR) { |
1929 | MARK = newsp + 1; |
a29cdaf0 |
1930 | if (MARK <= SP) { |
a8bba7fa |
1931 | if (cx->blk_sub.cv && CvDEPTH(cx->blk_sub.cv) > 1) { |
a29cdaf0 |
1932 | if (SvTEMP(TOPs)) { |
1933 | *MARK = SvREFCNT_inc(TOPs); |
1934 | FREETMPS; |
1935 | sv_2mortal(*MARK); |
cd06dffe |
1936 | } |
1937 | else { |
a29cdaf0 |
1938 | FREETMPS; |
1939 | *MARK = sv_mortalcopy(TOPs); |
1940 | } |
cd06dffe |
1941 | } |
1942 | else |
a29cdaf0 |
1943 | *MARK = SvTEMP(TOPs) ? TOPs : sv_mortalcopy(TOPs); |
cd06dffe |
1944 | } |
1945 | else { |
f86702cc |
1946 | MEXTEND(MARK, 0); |
3280af22 |
1947 | *MARK = &PL_sv_undef; |
a0d0e21e |
1948 | } |
1949 | SP = MARK; |
1950 | } |
54310121 |
1951 | else if (gimme == G_ARRAY) { |
f86702cc |
1952 | for (MARK = newsp + 1; MARK <= SP; MARK++) { |
a1f49e72 |
1953 | if (!SvTEMP(*MARK)) { |
f86702cc |
1954 | *MARK = sv_mortalcopy(*MARK); |
a1f49e72 |
1955 | TAINT_NOT; /* Each item is independent */ |
1956 | } |
f86702cc |
1957 | } |
a0d0e21e |
1958 | } |
f86702cc |
1959 | PUTBACK; |
1960 | |
b0d9ce38 |
1961 | POPSUB(cx,sv); /* Stack values are safe: release CV and @_ ... */ |
3280af22 |
1962 | PL_curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e |
1963 | |
1964 | LEAVE; |
b0d9ce38 |
1965 | LEAVESUB(sv); |
a0d0e21e |
1966 | return pop_return(); |
1967 | } |
1968 | |
cd06dffe |
1969 | /* This duplicates the above code because the above code must not |
1970 | * get any slower by more conditions */ |
1971 | PP(pp_leavesublv) |
1972 | { |
1973 | djSP; |
1974 | SV **mark; |
1975 | SV **newsp; |
1976 | PMOP *newpm; |
1977 | I32 gimme; |
1978 | register PERL_CONTEXT *cx; |
b0d9ce38 |
1979 | SV *sv; |
cd06dffe |
1980 | |
1981 | POPBLOCK(cx,newpm); |
cd06dffe |
1982 | |
1983 | TAINT_NOT; |
1984 | |
1985 | if (cx->blk_sub.lval & OPpENTERSUB_INARGS) { |
1986 | /* We are an argument to a function or grep(). |
1987 | * This kind of lvalueness was legal before lvalue |
1988 | * subroutines too, so be backward compatible: |
1989 | * cannot report errors. */ |
1990 | |
1991 | /* Scalar context *is* possible, on the LHS of -> only, |
1992 | * as in f()->meth(). But this is not an lvalue. */ |
1993 | if (gimme == G_SCALAR) |
1994 | goto temporise; |
1995 | if (gimme == G_ARRAY) { |
a8bba7fa |
1996 | if (!CvLVALUE(cx->blk_sub.cv)) |
cd06dffe |
1997 | goto temporise_array; |
1998 | EXTEND_MORTAL(SP - newsp); |
1999 | for (mark = newsp + 1; mark <= SP; mark++) { |
2000 | if (SvTEMP(*mark)) |
2001 | /* empty */ ; |
2002 | else if (SvFLAGS(*mark) & (SVs_PADTMP | SVf_READONLY)) |
2003 | *mark = sv_mortalcopy(*mark); |
2004 | else { |
2005 | /* Can be a localized value subject to deletion. */ |
2006 | PL_tmps_stack[++PL_tmps_ix] = *mark; |
e1f15930 |
2007 | (void)SvREFCNT_inc(*mark); |
cd06dffe |
2008 | } |
2009 | } |
2010 | } |
2011 | } |
2012 | else if (cx->blk_sub.lval) { /* Leave it as it is if we can. */ |
2013 | /* Here we go for robustness, not for speed, so we change all |
2014 | * the refcounts so the caller gets a live guy. Cannot set |
2015 | * TEMP, so sv_2mortal is out of question. */ |
a8bba7fa |
2016 | if (!CvLVALUE(cx->blk_sub.cv)) { |
b0d9ce38 |
2017 | POPSUB(cx,sv); |
d470f89e |
2018 | PL_curpm = newpm; |
b0d9ce38 |
2019 | LEAVE; |
2020 | LEAVESUB(sv); |
d470f89e |
2021 | DIE(aTHX_ "Can't modify non-lvalue subroutine call"); |
2022 | } |
cd06dffe |
2023 | if (gimme == G_SCALAR) { |
2024 | MARK = newsp + 1; |
2025 | EXTEND_MORTAL(1); |
2026 | if (MARK == SP) { |
d470f89e |
2027 | if (SvFLAGS(TOPs) & (SVs_TEMP | SVs_PADTMP | SVf_READONLY)) { |
b0d9ce38 |
2028 | POPSUB(cx,sv); |
d470f89e |
2029 | PL_curpm = newpm; |
b0d9ce38 |
2030 | LEAVE; |
2031 | LEAVESUB(sv); |
d470f89e |
2032 | DIE(aTHX_ "Can't return a %s from lvalue subroutine", |
cd06dffe |
2033 | SvREADONLY(TOPs) ? "readonly value" : "temporary"); |
d470f89e |
2034 | } |
cd06dffe |
2035 | else { /* Can be a localized value |
2036 | * subject to deletion. */ |
2037 | PL_tmps_stack[++PL_tmps_ix] = *mark; |
e1f15930 |
2038 | (void)SvREFCNT_inc(*mark); |
cd06dffe |
2039 | } |
2040 | } |
d470f89e |
2041 | else { /* Should not happen? */ |
b0d9ce38 |
2042 | POPSUB(cx,sv); |
d470f89e |
2043 | PL_curpm = newpm; |
b0d9ce38 |
2044 | LEAVE; |
2045 | LEAVESUB(sv); |
d470f89e |
2046 | DIE(aTHX_ "%s returned from lvalue subroutine in scalar context", |
cd06dffe |
2047 | (MARK > SP ? "Empty array" : "Array")); |
d470f89e |
2048 | } |
cd06dffe |
2049 | SP = MARK; |
2050 | } |
2051 | else if (gimme == G_ARRAY) { |
2052 | EXTEND_MORTAL(SP - newsp); |
2053 | for (mark = newsp + 1; mark <= SP; mark++) { |
d470f89e |
2054 | if (SvFLAGS(*mark) & (SVs_TEMP | SVs_PADTMP | SVf_READONLY)) { |
2055 | /* Might be flattened array after $#array = */ |
2056 | PUTBACK; |
b0d9ce38 |
2057 | POPSUB(cx,sv); |
d470f89e |
2058 | PL_curpm = newpm; |
b0d9ce38 |
2059 | LEAVE; |
2060 | LEAVESUB(sv); |
d470f89e |
2061 | DIE(aTHX_ "Can't return %s from lvalue subroutine", |
cd06dffe |
2062 | (*mark != &PL_sv_undef) |
2063 | ? (SvREADONLY(TOPs) |
2064 | ? "a readonly value" : "a temporary") |
2065 | : "an uninitialized value"); |
d470f89e |
2066 | } |
cd06dffe |
2067 | else { |
2068 | mortalize: |
2069 | /* Can be a localized value subject to deletion. */ |
2070 | PL_tmps_stack[++PL_tmps_ix] = *mark; |
e1f15930 |
2071 | (void)SvREFCNT_inc(*mark); |
cd06dffe |
2072 | } |
2073 | } |
2074 | } |
2075 | } |
2076 | else { |
2077 | if (gimme == G_SCALAR) { |
2078 | temporise: |
2079 | MARK = newsp + 1; |
2080 | if (MARK <= SP) { |
a8bba7fa |
2081 | if (cx->blk_sub.cv && CvDEPTH(cx->blk_sub.cv) > 1) { |
cd06dffe |
2082 | if (SvTEMP(TOPs)) { |
2083 | *MARK = SvREFCNT_inc(TOPs); |
2084 | FREETMPS; |
2085 | sv_2mortal(*MARK); |
2086 | } |
2087 | else { |
2088 | FREETMPS; |
2089 | *MARK = sv_mortalcopy(TOPs); |
2090 | } |
2091 | } |
2092 | else |
2093 | *MARK = SvTEMP(TOPs) ? TOPs : sv_mortalcopy(TOPs); |
2094 | } |
2095 | else { |
2096 | MEXTEND(MARK, 0); |
2097 | *MARK = &PL_sv_undef; |
2098 | } |
2099 | SP = MARK; |
2100 | } |
2101 | else if (gimme == G_ARRAY) { |
2102 | temporise_array: |
2103 | for (MARK = newsp + 1; MARK <= SP; MARK++) { |
2104 | if (!SvTEMP(*MARK)) { |
2105 | *MARK = sv_mortalcopy(*MARK); |
2106 | TAINT_NOT; /* Each item is independent */ |
2107 | } |
2108 | } |
2109 | } |
2110 | } |
2111 | PUTBACK; |
2112 | |
b0d9ce38 |
2113 | POPSUB(cx,sv); /* Stack values are safe: release CV and @_ ... */ |
cd06dffe |
2114 | PL_curpm = newpm; /* ... and pop $1 et al */ |
2115 | |
2116 | LEAVE; |
b0d9ce38 |
2117 | LEAVESUB(sv); |
cd06dffe |
2118 | return pop_return(); |
2119 | } |
2120 | |
2121 | |
76e3520e |
2122 | STATIC CV * |
cea2e8a9 |
2123 | S_get_db_sub(pTHX_ SV **svp, CV *cv) |
3de9ffa1 |
2124 | { |
2125 | dTHR; |
3280af22 |
2126 | SV *dbsv = GvSV(PL_DBsub); |
491527d0 |
2127 | |
2128 | if (!PERLDB_SUB_NN) { |
2129 | GV *gv = CvGV(cv); |
2130 | |
2131 | save_item(dbsv); |
2132 | if ( (CvFLAGS(cv) & (CVf_ANON | CVf_CLONED)) |
2133 | || strEQ(GvNAME(gv), "END") |
2134 | || ((GvCV(gv) != cv) && /* Could be imported, and old sub redefined. */ |
2135 | !( (SvTYPE(*svp) == SVt_PVGV) && (GvCV((GV*)*svp) == cv) |
2136 | && (gv = (GV*)*svp) ))) { |
2137 | /* Use GV from the stack as a fallback. */ |
2138 | /* GV is potentially non-unique, or contain different CV. */ |
2139 | sv_setsv(dbsv, newRV((SV*)cv)); |
2140 | } |
2141 | else { |
2142 | gv_efullname3(dbsv, gv, Nullch); |
2143 | } |
3de9ffa1 |
2144 | } |
2145 | else { |
491527d0 |
2146 | SvUPGRADE(dbsv, SVt_PVIV); |
2147 | SvIOK_on(dbsv); |
2148 | SAVEIV(SvIVX(dbsv)); |
5bc28da9 |
2149 | SvIVX(dbsv) = PTR2IV(cv); /* Do it the quickest way */ |
3de9ffa1 |
2150 | } |
491527d0 |
2151 | |
3de9ffa1 |
2152 | if (CvXSUB(cv)) |
3280af22 |
2153 | PL_curcopdb = PL_curcop; |
2154 | cv = GvCV(PL_DBsub); |
3de9ffa1 |
2155 | return cv; |
2156 | } |
2157 | |
a0d0e21e |
2158 | PP(pp_entersub) |
2159 | { |
4e35701f |
2160 | djSP; dPOPss; |
a0d0e21e |
2161 | GV *gv; |
2162 | HV *stash; |
2163 | register CV *cv; |
c09156bb |
2164 | register PERL_CONTEXT *cx; |
5d94fbed |
2165 | I32 gimme; |
533c011a |
2166 | bool hasargs = (PL_op->op_flags & OPf_STACKED) != 0; |
a0d0e21e |
2167 | |
2168 | if (!sv) |
cea2e8a9 |
2169 | DIE(aTHX_ "Not a CODE reference"); |
a0d0e21e |
2170 | switch (SvTYPE(sv)) { |
2171 | default: |
2172 | if (!SvROK(sv)) { |
748a9306 |
2173 | char *sym; |
2d8e6c8d |
2174 | STRLEN n_a; |
748a9306 |
2175 | |
3280af22 |
2176 | if (sv == &PL_sv_yes) { /* unfound import, ignore */ |
fb73857a |
2177 | if (hasargs) |
3280af22 |
2178 | SP = PL_stack_base + POPMARK; |
a0d0e21e |
2179 | RETURN; |
fb73857a |
2180 | } |
15ff848f |
2181 | if (SvGMAGICAL(sv)) { |
2182 | mg_get(sv); |
2183 | sym = SvPOKp(sv) ? SvPVX(sv) : Nullch; |
2184 | } |
2185 | else |
2d8e6c8d |
2186 | sym = SvPV(sv, n_a); |
15ff848f |
2187 | if (!sym) |
cea2e8a9 |
2188 | DIE(aTHX_ PL_no_usym, "a subroutine"); |
533c011a |
2189 | if (PL_op->op_private & HINT_STRICT_REFS) |
cea2e8a9 |
2190 | DIE(aTHX_ PL_no_symref, sym, "a subroutine"); |
864dbfa3 |
2191 | cv = get_cv(sym, TRUE); |
a0d0e21e |
2192 | break; |
2193 | } |
f5284f61 |
2194 | { |
2195 | SV **sp = &sv; /* Used in tryAMAGICunDEREF macro. */ |
2196 | tryAMAGICunDEREF(to_cv); |
2197 | } |
a0d0e21e |
2198 | cv = (CV*)SvRV(sv); |
2199 | if (SvTYPE(cv) == SVt_PVCV) |
2200 | break; |
2201 | /* FALL THROUGH */ |
2202 | case SVt_PVHV: |
2203 | case SVt_PVAV: |
cea2e8a9 |
2204 | DIE(aTHX_ "Not a CODE reference"); |
a0d0e21e |
2205 | case SVt_PVCV: |
2206 | cv = (CV*)sv; |
2207 | break; |
2208 | case SVt_PVGV: |
8ebc5c01 |
2209 | if (!(cv = GvCVu((GV*)sv))) |
f6ec51f7 |
2210 | cv = sv_2cv(sv, &stash, &gv, FALSE); |
2211 | if (!cv) { |
2212 | ENTER; |
2213 | SAVETMPS; |
2214 | goto try_autoload; |
2215 | } |
2216 | break; |
a0d0e21e |
2217 | } |
2218 | |
2219 | ENTER; |
2220 | SAVETMPS; |
2221 | |
2222 | retry: |
a0d0e21e |
2223 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
44a8e56a |
2224 | GV* autogv; |
22239a37 |
2225 | SV* sub_name; |
44a8e56a |
2226 | |
2227 | /* anonymous or undef'd function leaves us no recourse */ |
2228 | if (CvANON(cv) || !(gv = CvGV(cv))) |
cea2e8a9 |
2229 | DIE(aTHX_ "Undefined subroutine called"); |
67caa1fe |
2230 | |
44a8e56a |
2231 | /* autoloaded stub? */ |
2232 | if (cv != GvCV(gv)) { |
2233 | cv = GvCV(gv); |
a0d0e21e |
2234 | } |
44a8e56a |
2235 | /* should call AUTOLOAD now? */ |
67caa1fe |
2236 | else { |
f6ec51f7 |
2237 | try_autoload: |
2238 | if ((autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), |
2239 | FALSE))) |
2240 | { |
2241 | cv = GvCV(autogv); |
2242 | } |
2243 | /* sorry */ |
2244 | else { |
2245 | sub_name = sv_newmortal(); |
2246 | gv_efullname3(sub_name, gv, Nullch); |
cea2e8a9 |
2247 | DIE(aTHX_ "Undefined subroutine &%s called", SvPVX(sub_name)); |
f6ec51f7 |
2248 | } |
67caa1fe |
2249 | } |
2250 | if (!cv) |
cea2e8a9 |
2251 | DIE(aTHX_ "Not a CODE reference"); |
67caa1fe |
2252 | goto retry; |
a0d0e21e |
2253 | } |
2254 | |
54310121 |
2255 | gimme = GIMME_V; |
67caa1fe |
2256 | if ((PL_op->op_private & OPpENTERSUB_DB) && GvCV(PL_DBsub) && !CvNODEBUG(cv)) { |
4f01c5a5 |
2257 | cv = get_db_sub(&sv, cv); |
67caa1fe |
2258 | if (!cv) |
cea2e8a9 |
2259 | DIE(aTHX_ "No DBsub routine"); |
67caa1fe |
2260 | } |
a0d0e21e |
2261 | |
11343788 |
2262 | #ifdef USE_THREADS |
3de9ffa1 |
2263 | /* |
2264 | * First we need to check if the sub or method requires locking. |
458fb581 |
2265 | * If so, we gain a lock on the CV, the first argument or the |
2266 | * stash (for static methods), as appropriate. This has to be |
2267 | * inline because for FAKE_THREADS, COND_WAIT inlines code to |
2268 | * reschedule by returning a new op. |
3de9ffa1 |
2269 | */ |
11343788 |
2270 | MUTEX_LOCK(CvMUTEXP(cv)); |
77a005ab |
2271 | if (CvFLAGS(cv) & CVf_LOCKED) { |
2272 | MAGIC *mg; |
2273 | if (CvFLAGS(cv) & CVf_METHOD) { |
533c011a |
2274 | if (SP > PL_stack_base + TOPMARK) |
2275 | sv = *(PL_stack_base + TOPMARK + 1); |
77a005ab |
2276 | else { |
13e08037 |
2277 | AV *av = (AV*)PL_curpad[0]; |
2278 | if (hasargs || !av || AvFILLp(av) < 0 |
2279 | || !(sv = AvARRAY(av)[0])) |
2280 | { |
2281 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
d470f89e |
2282 | DIE(aTHX_ "no argument for locked method call"); |
13e08037 |
2283 | } |
77a005ab |
2284 | } |
2285 | if (SvROK(sv)) |
2286 | sv = SvRV(sv); |
458fb581 |
2287 | else { |
2288 | STRLEN len; |
2289 | char *stashname = SvPV(sv, len); |
2290 | sv = (SV*)gv_stashpvn(stashname, len, TRUE); |
2291 | } |
77a005ab |
2292 | } |
2293 | else { |
2294 | sv = (SV*)cv; |
2295 | } |
2296 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
2297 | mg = condpair_magic(sv); |
2298 | MUTEX_LOCK(MgMUTEXP(mg)); |
2299 | if (MgOWNER(mg) == thr) |
2300 | MUTEX_UNLOCK(MgMUTEXP(mg)); |
2301 | else { |
2302 | while (MgOWNER(mg)) |
2303 | COND_WAIT(MgOWNERCONDP(mg), MgMUTEXP(mg)); |
2304 | MgOWNER(mg) = thr; |
bf49b057 |
2305 | DEBUG_S(PerlIO_printf(Perl_debug_log, "%p: pp_entersub lock %p\n", |
1fd28e87 |
2306 | thr, sv);) |
77a005ab |
2307 | MUTEX_UNLOCK(MgMUTEXP(mg)); |
c76ac1ee |
2308 | SAVEDESTRUCTOR_X(Perl_unlock_condpair, sv); |
11343788 |
2309 | } |
77a005ab |
2310 | MUTEX_LOCK(CvMUTEXP(cv)); |
11343788 |
2311 | } |
3de9ffa1 |
2312 | /* |
2313 | * Now we have permission to enter the sub, we must distinguish |
2314 | * four cases. (0) It's an XSUB (in which case we don't care |
2315 | * about ownership); (1) it's ours already (and we're recursing); |
2316 | * (2) it's free (but we may already be using a cached clone); |
2317 | * (3) another thread owns it. Case (1) is easy: we just use it. |
2318 | * Case (2) means we look for a clone--if we have one, use it |
2319 | * otherwise grab ownership of cv. Case (3) means we look for a |
2320 | * clone (for non-XSUBs) and have to create one if we don't |
2321 | * already have one. |
2322 | * Why look for a clone in case (2) when we could just grab |
2323 | * ownership of cv straight away? Well, we could be recursing, |
2324 | * i.e. we originally tried to enter cv while another thread |
2325 | * owned it (hence we used a clone) but it has been freed up |
2326 | * and we're now recursing into it. It may or may not be "better" |
2327 | * to use the clone but at least CvDEPTH can be trusted. |
2328 | */ |
2329 | if (CvOWNER(cv) == thr || CvXSUB(cv)) |
2330 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
11343788 |
2331 | else { |
3de9ffa1 |
2332 | /* Case (2) or (3) */ |
2333 | SV **svp; |
2334 | |
11343788 |
2335 | /* |
3de9ffa1 |
2336 | * XXX Might it be better to release CvMUTEXP(cv) while we |
2337 | * do the hv_fetch? We might find someone has pinched it |
2338 | * when we look again, in which case we would be in case |
2339 | * (3) instead of (2) so we'd have to clone. Would the fact |
2340 | * that we released the mutex more quickly make up for this? |
2341 | */ |
b099ddc0 |
2342 | if ((svp = hv_fetch(thr->cvcache, (char *)cv, sizeof(cv), FALSE))) |
6ee623d5 |
2343 | { |
3de9ffa1 |
2344 | /* We already have a clone to use */ |
11343788 |
2345 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
3de9ffa1 |
2346 | cv = *(CV**)svp; |
bf49b057 |
2347 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
1fd28e87 |
2348 | "entersub: %p already has clone %p:%s\n", |
2349 | thr, cv, SvPEEK((SV*)cv))); |
3de9ffa1 |
2350 | CvOWNER(cv) = thr; |
2351 | SvREFCNT_inc(cv); |
2352 | if (CvDEPTH(cv) == 0) |
c76ac1ee |
2353 | SAVEDESTRUCTOR_X(unset_cvowner, (void*) cv); |
3de9ffa1 |
2354 | } |
11343788 |
2355 | else { |
3de9ffa1 |
2356 | /* (2) => grab ownership of cv. (3) => make clone */ |
2357 | if (!CvOWNER(cv)) { |
2358 | CvOWNER(cv) = thr; |
2359 | SvREFCNT_inc(cv); |
11343788 |
2360 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
bf49b057 |
2361 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
1fd28e87 |
2362 | "entersub: %p grabbing %p:%s in stash %s\n", |
2363 | thr, cv, SvPEEK((SV*)cv), CvSTASH(cv) ? |
3de9ffa1 |
2364 | HvNAME(CvSTASH(cv)) : "(none)")); |
cd06dffe |
2365 | } |
2366 | else { |
3de9ffa1 |
2367 | /* Make a new clone. */ |
2368 | CV *clonecv; |
2369 | SvREFCNT_inc(cv); /* don't let it vanish from under us */ |
2370 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
bf49b057 |
2371 | DEBUG_S((PerlIO_printf(Perl_debug_log, |
1fd28e87 |
2372 | "entersub: %p cloning %p:%s\n", |
2373 | thr, cv, SvPEEK((SV*)cv)))); |
3de9ffa1 |
2374 | /* |
2375 | * We're creating a new clone so there's no race |
2376 | * between the original MUTEX_UNLOCK and the |
2377 | * SvREFCNT_inc since no one will be trying to undef |
2378 | * it out from underneath us. At least, I don't think |
2379 | * there's a race... |
2380 | */ |
2381 | clonecv = cv_clone(cv); |
2382 | SvREFCNT_dec(cv); /* finished with this */ |
199100c8 |
2383 | hv_store(thr->cvcache, (char*)cv, sizeof(cv), (SV*)clonecv,0); |
3de9ffa1 |
2384 | CvOWNER(clonecv) = thr; |
2385 | cv = clonecv; |
11343788 |
2386 | SvREFCNT_inc(cv); |
11343788 |
2387 | } |
8b73bbec |
2388 | DEBUG_S(if (CvDEPTH(cv) != 0) |
bf49b057 |
2389 | PerlIO_printf(Perl_debug_log, "depth %ld != 0\n", |
3de9ffa1 |
2390 | CvDEPTH(cv));); |
c76ac1ee |
2391 | SAVEDESTRUCTOR_X(unset_cvowner, (void*) cv); |
11343788 |
2392 | } |
3de9ffa1 |
2393 | } |
11343788 |
2394 | #endif /* USE_THREADS */ |
2395 | |
a0d0e21e |
2396 | if (CvXSUB(cv)) { |
67caa1fe |
2397 | #ifdef PERL_XSUB_OLDSTYLE |
a0d0e21e |
2398 | if (CvOLDSTYLE(cv)) { |
20ce7b12 |
2399 | I32 (*fp3)(int,int,int); |
a0d0e21e |
2400 | dMARK; |
2401 | register I32 items = SP - MARK; |
67955e0c |
2402 | /* We dont worry to copy from @_. */ |
924508f0 |
2403 | while (SP > mark) { |
2404 | SP[1] = SP[0]; |
2405 | SP--; |
a0d0e21e |
2406 | } |
3280af22 |
2407 | PL_stack_sp = mark + 1; |
1d7c1841 |
2408 | fp3 = (I32(*)(int,int,int))CvXSUB(cv); |
ecfc5424 |
2409 | items = (*fp3)(CvXSUBANY(cv).any_i32, |
3280af22 |
2410 | MARK - PL_stack_base + 1, |
ecfc5424 |
2411 | items); |
3280af22 |
2412 | PL_stack_sp = PL_stack_base + items; |
a0d0e21e |
2413 | } |
67caa1fe |
2414 | else |
2415 | #endif /* PERL_XSUB_OLDSTYLE */ |
2416 | { |
748a9306 |
2417 | I32 markix = TOPMARK; |
2418 | |
a0d0e21e |
2419 | PUTBACK; |
67955e0c |
2420 | |
2421 | if (!hasargs) { |
2422 | /* Need to copy @_ to stack. Alternative may be to |
2423 | * switch stack to @_, and copy return values |
2424 | * back. This would allow popping @_ in XSUB, e.g.. XXXX */ |
6d4ff0d2 |
2425 | AV* av; |
2426 | I32 items; |
2427 | #ifdef USE_THREADS |
533c011a |
2428 | av = (AV*)PL_curpad[0]; |
6d4ff0d2 |
2429 | #else |
3280af22 |
2430 | av = GvAV(PL_defgv); |
6d4ff0d2 |
2431 | #endif /* USE_THREADS */ |
93965878 |
2432 | items = AvFILLp(av) + 1; /* @_ is not tieable */ |
67955e0c |
2433 | |
2434 | if (items) { |
2435 | /* Mark is at the end of the stack. */ |
924508f0 |
2436 | EXTEND(SP, items); |
2437 | Copy(AvARRAY(av), SP + 1, items, SV*); |
2438 | SP += items; |
67955e0c |
2439 | PUTBACK ; |
2440 | } |
2441 | } |
67caa1fe |
2442 | /* We assume first XSUB in &DB::sub is the called one. */ |
2443 | if (PL_curcopdb) { |
1d7c1841 |
2444 | SAVEVPTR(PL_curcop); |
3280af22 |
2445 | PL_curcop = PL_curcopdb; |
2446 | PL_curcopdb = NULL; |
67955e0c |
2447 | } |
2448 | /* Do we need to open block here? XXXX */ |
0cb96387 |
2449 | (void)(*CvXSUB(cv))(aTHXo_ cv); |
748a9306 |
2450 | |
2451 | /* Enforce some sanity in scalar context. */ |
3280af22 |
2452 | if (gimme == G_SCALAR && ++markix != PL_stack_sp - PL_stack_base ) { |
2453 | if (markix > PL_stack_sp - PL_stack_base) |
2454 | *(PL_stack_base + markix) = &PL_sv_undef; |
748a9306 |
2455 | else |
3280af22 |
2456 | *(PL_stack_base + markix) = *PL_stack_sp; |
2457 | PL_stack_sp = PL_stack_base + markix; |
748a9306 |
2458 | } |
a0d0e21e |
2459 | } |
2460 | LEAVE; |
2461 | return NORMAL; |
2462 | } |
2463 | else { |
2464 | dMARK; |
2465 | register I32 items = SP - MARK; |
a0d0e21e |
2466 | AV* padlist = CvPADLIST(cv); |
2467 | SV** svp = AvARRAY(padlist); |
533c011a |
2468 | push_return(PL_op->op_next); |
a0d0e21e |
2469 | PUSHBLOCK(cx, CXt_SUB, MARK); |
2470 | PUSHSUB(cx); |
2471 | CvDEPTH(cv)++; |
6b35e009 |
2472 | /* XXX This would be a natural place to set C<PL_compcv = cv> so |
2473 | * that eval'' ops within this sub know the correct lexical space. |
2474 | * Owing the speed considerations, we choose to search for the cv |
2475 | * in doeval() instead. |
2476 | */ |
a0d0e21e |
2477 | if (CvDEPTH(cv) < 2) |
2478 | (void)SvREFCNT_inc(cv); |
2479 | else { /* save temporaries on recursion? */ |
1d7c1841 |
2480 | PERL_STACK_OVERFLOW_CHECK(); |
93965878 |
2481 | if (CvDEPTH(cv) > AvFILLp(padlist)) { |
a0d0e21e |
2482 | AV *av; |
2483 | AV *newpad = newAV(); |
4aa0a1f7 |
2484 | SV **oldpad = AvARRAY(svp[CvDEPTH(cv)-1]); |
93965878 |
2485 | I32 ix = AvFILLp((AV*)svp[1]); |
1d7c1841 |
2486 | I32 names_fill = AvFILLp((AV*)svp[0]); |
a0d0e21e |
2487 | svp = AvARRAY(svp[0]); |
748a9306 |
2488 | for ( ;ix > 0; ix--) { |
1d7c1841 |
2489 | if (names_fill >= ix && svp[ix] != &PL_sv_undef) { |
748a9306 |
2490 | char *name = SvPVX(svp[ix]); |
5f05dabc |
2491 | if ((SvFLAGS(svp[ix]) & SVf_FAKE) /* outer lexical? */ |
2492 | || *name == '&') /* anonymous code? */ |
2493 | { |
2494 | av_store(newpad, ix, SvREFCNT_inc(oldpad[ix])); |
748a9306 |
2495 | } |
2496 | else { /* our own lexical */ |
2497 | if (*name == '@') |
2498 | av_store(newpad, ix, sv = (SV*)newAV()); |
2499 | else if (*name == '%') |
2500 | av_store(newpad, ix, sv = (SV*)newHV()); |
2501 | else |
2502 | av_store(newpad, ix, sv = NEWSV(0,0)); |
2503 | SvPADMY_on(sv); |
2504 | } |
a0d0e21e |
2505 | } |
1d7c1841 |
2506 | else if (IS_PADGV(oldpad[ix]) || IS_PADCONST(oldpad[ix])) { |
2507 | av_store(newpad, ix, sv = SvREFCNT_inc(oldpad[ix])); |
2508 | } |
a0d0e21e |
2509 | else { |
748a9306 |
2510 | av_store(newpad, ix, sv = NEWSV(0,0)); |
a0d0e21e |
2511 | SvPADTMP_on(sv); |
2512 | } |
2513 | } |
2514 | av = newAV(); /* will be @_ */ |
2515 | av_extend(av, 0); |
2516 | av_store(newpad, 0, (SV*)av); |
2517 | AvFLAGS(av) = AVf_REIFY; |
2518 | av_store(padlist, CvDEPTH(cv), (SV*)newpad); |
93965878 |
2519 | AvFILLp(padlist) = CvDEPTH(cv); |
a0d0e21e |
2520 | svp = AvARRAY(padlist); |
2521 | } |
2522 | } |
6d4ff0d2 |
2523 | #ifdef USE_THREADS |
2524 | if (!hasargs) { |
533c011a |
2525 | AV* av = (AV*)PL_curpad[0]; |
6d4ff0d2 |
2526 | |
93965878 |
2527 | items = AvFILLp(av) + 1; |
6d4ff0d2 |
2528 | if (items) { |
2529 | /* Mark is at the end of the stack. */ |
924508f0 |
2530 | EXTEND(SP, items); |
2531 | Copy(AvARRAY(av), SP + 1, items, SV*); |
2532 | SP += items; |
6d4ff0d2 |
2533 | PUTBACK ; |
2534 | } |
2535 | } |
2536 | #endif /* USE_THREADS */ |
1d7c1841 |
2537 | SAVEVPTR(PL_curpad); |
3280af22 |
2538 | PL_curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]); |
6d4ff0d2 |
2539 | #ifndef USE_THREADS |
2540 | if (hasargs) |
2541 | #endif /* USE_THREADS */ |
2542 | { |
2543 | AV* av; |
a0d0e21e |
2544 | SV** ary; |
2545 | |
77a005ab |
2546 | #if 0 |
bf49b057 |
2547 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
0f15f207 |
2548 | "%p entersub preparing @_\n", thr)); |
77a005ab |
2549 | #endif |
3280af22 |
2550 | av = (AV*)PL_curpad[0]; |
221373f0 |
2551 | if (AvREAL(av)) { |
2552 | /* @_ is normally not REAL--this should only ever |
2553 | * happen when DB::sub() calls things that modify @_ */ |
2554 | av_clear(av); |
2555 | AvREAL_off(av); |
2556 | AvREIFY_on(av); |
2557 | } |
6d4ff0d2 |
2558 | #ifndef USE_THREADS |
3280af22 |
2559 | cx->blk_sub.savearray = GvAV(PL_defgv); |
2560 | GvAV(PL_defgv) = (AV*)SvREFCNT_inc(av); |
6d4ff0d2 |
2561 | #endif /* USE_THREADS */ |
2562 | cx->blk_sub.argarray = av; |
a0d0e21e |
2563 | ++MARK; |
2564 | |
2565 | if (items > AvMAX(av) + 1) { |
2566 | ary = AvALLOC(av); |
2567 | if (AvARRAY(av) != ary) { |
2568 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); |
2569 | SvPVX(av) = (char*)ary; |
2570 | } |
2571 | if (items > AvMAX(av) + 1) { |
2572 | AvMAX(av) = items - 1; |
2573 | Renew(ary,items,SV*); |
2574 | AvALLOC(av) = ary; |
2575 | SvPVX(av) = (char*)ary; |
2576 | } |
2577 | } |
2578 | Copy(MARK,AvARRAY(av),items,SV*); |
93965878 |
2579 | AvFILLp(av) = items - 1; |
a0d0e21e |
2580 | |
2581 | while (items--) { |
2582 | if (*MARK) |
2583 | SvTEMP_off(*MARK); |
2584 | MARK++; |
2585 | } |
2586 | } |
4a925ff6 |
2587 | /* warning must come *after* we fully set up the context |
2588 | * stuff so that __WARN__ handlers can safely dounwind() |
2589 | * if they want to |
2590 | */ |
2591 | if (CvDEPTH(cv) == 100 && ckWARN(WARN_RECURSION) |
2592 | && !(PERLDB_SUB && cv == GvCV(PL_DBsub))) |
2593 | sub_crush_depth(cv); |
77a005ab |
2594 | #if 0 |
bf49b057 |
2595 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
0f15f207 |
2596 | "%p entersub returning %p\n", thr, CvSTART(cv))); |
77a005ab |
2597 | #endif |
a0d0e21e |
2598 | RETURNOP(CvSTART(cv)); |
2599 | } |
2600 | } |
2601 | |
44a8e56a |
2602 | void |
864dbfa3 |
2603 | Perl_sub_crush_depth(pTHX_ CV *cv) |
44a8e56a |
2604 | { |
2605 | if (CvANON(cv)) |
cea2e8a9 |
2606 | Perl_warner(aTHX_ WARN_RECURSION, "Deep recursion on anonymous subroutine"); |
44a8e56a |
2607 | else { |
2608 | SV* tmpstr = sv_newmortal(); |
2609 | gv_efullname3(tmpstr, CvGV(cv), Nullch); |
cea2e8a9 |
2610 | Perl_warner(aTHX_ WARN_RECURSION, "Deep recursion on subroutine \"%s\"", |
599cee73 |
2611 | SvPVX(tmpstr)); |
44a8e56a |
2612 | } |
2613 | } |
2614 | |
a0d0e21e |
2615 | PP(pp_aelem) |
2616 | { |
4e35701f |
2617 | djSP; |
a0d0e21e |
2618 | SV** svp; |
748a9306 |
2619 | I32 elem = POPi; |
68dc0745 |
2620 | AV* av = (AV*)POPs; |
533c011a |
2621 | U32 lval = PL_op->op_flags & OPf_MOD; |
2622 | U32 defer = (PL_op->op_private & OPpLVAL_DEFER) && (elem > AvFILL(av)); |
be6c24e0 |
2623 | SV *sv; |
a0d0e21e |
2624 | |
748a9306 |
2625 | if (elem > 0) |
3280af22 |
2626 | elem -= PL_curcop->cop_arybase; |
a0d0e21e |
2627 | if (SvTYPE(av) != SVt_PVAV) |
2628 | RETPUSHUNDEF; |
68dc0745 |
2629 | svp = av_fetch(av, elem, lval && !defer); |
a0d0e21e |
2630 | if (lval) { |
3280af22 |
2631 | if (!svp || *svp == &PL_sv_undef) { |
68dc0745 |
2632 | SV* lv; |
2633 | if (!defer) |
cea2e8a9 |
2634 | DIE(aTHX_ PL_no_aelem, elem); |
68dc0745 |
2635 | lv = sv_newmortal(); |
2636 | sv_upgrade(lv, SVt_PVLV); |
2637 | LvTYPE(lv) = 'y'; |
2638 | sv_magic(lv, Nullsv, 'y', Nullch, 0); |
2639 | LvTARG(lv) = SvREFCNT_inc(av); |
2640 | LvTARGOFF(lv) = elem; |
2641 | LvTARGLEN(lv) = 1; |
2642 | PUSHs(lv); |
2643 | RETURN; |
2644 | } |
533c011a |
2645 | if (PL_op->op_private & OPpLVAL_INTRO) |
161b7d16 |
2646 | save_aelem(av, elem, svp); |
533c011a |
2647 | else if (PL_op->op_private & OPpDEREF) |
2648 | vivify_ref(*svp, PL_op->op_private & OPpDEREF); |
a0d0e21e |
2649 | } |
3280af22 |
2650 | sv = (svp ? *svp : &PL_sv_undef); |
be6c24e0 |
2651 | if (!lval && SvGMAGICAL(sv)) /* see note in pp_helem() */ |
2652 | sv = sv_mortalcopy(sv); |
2653 | PUSHs(sv); |
a0d0e21e |
2654 | RETURN; |
2655 | } |
2656 | |
02a9e968 |
2657 | void |
864dbfa3 |
2658 | Perl_vivify_ref(pTHX_ SV *sv, U32 to_what) |
02a9e968 |
2659 | { |
2660 | if (SvGMAGICAL(sv)) |
2661 | mg_get(sv); |
2662 | if (!SvOK(sv)) { |
2663 | if (SvREADONLY(sv)) |
cea2e8a9 |
2664 | Perl_croak(aTHX_ PL_no_modify); |
5f05dabc |
2665 | if (SvTYPE(sv) < SVt_RV) |
2666 | sv_upgrade(sv, SVt_RV); |
2667 | else if (SvTYPE(sv) >= SVt_PV) { |
2668 | (void)SvOOK_off(sv); |
2669 | Safefree(SvPVX(sv)); |
2670 | SvLEN(sv) = SvCUR(sv) = 0; |
2671 | } |
68dc0745 |
2672 | switch (to_what) { |
5f05dabc |
2673 | case OPpDEREF_SV: |
8c52afec |
2674 | SvRV(sv) = NEWSV(355,0); |
5f05dabc |
2675 | break; |
2676 | case OPpDEREF_AV: |
2677 | SvRV(sv) = (SV*)newAV(); |
2678 | break; |
2679 | case OPpDEREF_HV: |
2680 | SvRV(sv) = (SV*)newHV(); |
2681 | break; |
2682 | } |
02a9e968 |
2683 | SvROK_on(sv); |
2684 | SvSETMAGIC(sv); |
2685 | } |
2686 | } |
2687 | |
a0d0e21e |
2688 | PP(pp_method) |
2689 | { |
4e35701f |
2690 | djSP; |
f5d5a27c |
2691 | SV* sv = TOPs; |
2692 | |
2693 | if (SvROK(sv)) { |
eda383f2 |
2694 | SV* rsv = SvRV(sv); |
f5d5a27c |
2695 | if (SvTYPE(rsv) == SVt_PVCV) { |
2696 | SETs(rsv); |
2697 | RETURN; |
2698 | } |
2699 | } |
2700 | |
2701 | SETs(method_common(sv, Null(U32*))); |
2702 | RETURN; |
2703 | } |
2704 | |
2705 | PP(pp_method_named) |
2706 | { |
2707 | djSP; |
2708 | SV* sv = cSVOP->op_sv; |
2709 | U32 hash = SvUVX(sv); |
2710 | |
2711 | XPUSHs(method_common(sv, &hash)); |
2712 | RETURN; |
2713 | } |
2714 | |
2715 | STATIC SV * |
2716 | S_method_common(pTHX_ SV* meth, U32* hashp) |
2717 | { |
2718 | djSP; |
a0d0e21e |
2719 | SV* sv; |
2720 | SV* ob; |
2721 | GV* gv; |
56304f61 |
2722 | HV* stash; |
2723 | char* name; |
f5d5a27c |
2724 | STRLEN namelen; |
ac91690f |
2725 | char* packname; |
2726 | STRLEN packlen; |
a0d0e21e |
2727 | |
f5d5a27c |
2728 | name = SvPV(meth, namelen); |
3280af22 |
2729 | sv = *(PL_stack_base + TOPMARK + 1); |
f5d5a27c |
2730 | |
16d20bd9 |
2731 | if (SvGMAGICAL(sv)) |
2732 | mg_get(sv); |
a0d0e21e |
2733 | if (SvROK(sv)) |
16d20bd9 |
2734 | ob = (SV*)SvRV(sv); |
a0d0e21e |
2735 | else { |
2736 | GV* iogv; |
a0d0e21e |
2737 | |
56304f61 |
2738 | packname = Nullch; |
a0d0e21e |
2739 | if (!SvOK(sv) || |
56304f61 |
2740 | !(packname = SvPV(sv, packlen)) || |
a0d0e21e |
2741 | !(iogv = gv_fetchpv(packname, FALSE, SVt_PVIO)) || |
2742 | !(ob=(SV*)GvIO(iogv))) |
2743 | { |
834a4ddd |
2744 | if (!packname || |
7e2040f0 |
2745 | ((*(U8*)packname >= 0xc0 && DO_UTF8(sv)) |
b86a2fa7 |
2746 | ? !isIDFIRST_utf8((U8*)packname) |
834a4ddd |
2747 | : !isIDFIRST(*packname) |
2748 | )) |
2749 | { |
f5d5a27c |
2750 | Perl_croak(aTHX_ "Can't call method \"%s\" %s", name, |
2751 | SvOK(sv) ? "without a package or object reference" |
2752 | : "on an undefined value"); |
834a4ddd |
2753 | } |
56304f61 |
2754 | stash = gv_stashpvn(packname, packlen, TRUE); |
ac91690f |
2755 | goto fetch; |
a0d0e21e |
2756 | } |
3280af22 |
2757 | *(PL_stack_base + TOPMARK + 1) = sv_2mortal(newRV((SV*)iogv)); |
a0d0e21e |
2758 | } |
2759 | |
ac91690f |
2760 | if (!ob || !SvOBJECT(ob)) |
f5d5a27c |
2761 | Perl_croak(aTHX_ "Can't call method \"%s\" on unblessed reference", |
2762 | name); |
a0d0e21e |
2763 | |
56304f61 |
2764 | stash = SvSTASH(ob); |
a0d0e21e |
2765 | |
ac91690f |
2766 | fetch: |
f5d5a27c |
2767 | /* shortcut for simple names */ |
2768 | if (hashp) { |
2769 | HE* he = hv_fetch_ent(stash, meth, 0, *hashp); |
2770 | if (he) { |
2771 | gv = (GV*)HeVAL(he); |
2772 | if (isGV(gv) && GvCV(gv) && |
2773 | (!GvCVGEN(gv) || GvCVGEN(gv) == PL_sub_generation)) |
2774 | return (SV*)GvCV(gv); |
2775 | } |
2776 | } |
2777 | |
ac91690f |
2778 | gv = gv_fetchmethod(stash, name); |
56304f61 |
2779 | if (!gv) { |
2780 | char* leaf = name; |
2781 | char* sep = Nullch; |
2782 | char* p; |
2783 | |
2784 | for (p = name; *p; p++) { |
2785 | if (*p == '\'') |
2786 | sep = p, leaf = p + 1; |
2787 | else if (*p == ':' && *(p + 1) == ':') |
2788 | sep = p, leaf = p + 2; |
2789 | } |
2790 | if (!sep || ((sep - name) == 5 && strnEQ(name, "SUPER", 5))) { |
1d7c1841 |
2791 | packname = sep ? CopSTASHPV(PL_curcop) : HvNAME(stash); |
56304f61 |
2792 | packlen = strlen(packname); |
2793 | } |
2794 | else { |
2795 | packname = name; |
2796 | packlen = sep - name; |
2797 | } |
f5d5a27c |
2798 | Perl_croak(aTHX_ |
2799 | "Can't locate object method \"%s\" via package \"%s\"", |
2800 | leaf, packname); |
56304f61 |
2801 | } |
f5d5a27c |
2802 | return isGV(gv) ? (SV*)GvCV(gv) : (SV*)gv; |
a0d0e21e |
2803 | } |
22239a37 |
2804 | |
51371543 |
2805 | #ifdef USE_THREADS |
2806 | static void |
2807 | unset_cvowner(pTHXo_ void *cvarg) |
2808 | { |
2809 | register CV* cv = (CV *) cvarg; |
2810 | #ifdef DEBUGGING |
2811 | dTHR; |
2812 | #endif /* DEBUGGING */ |
2813 | |
bf49b057 |
2814 | DEBUG_S((PerlIO_printf(Perl_debug_log, "%p unsetting CvOWNER of %p:%s\n", |
51371543 |
2815 | thr, cv, SvPEEK((SV*)cv)))); |
2816 | MUTEX_LOCK(CvMUTEXP(cv)); |
2817 | DEBUG_S(if (CvDEPTH(cv) != 0) |
bf49b057 |
2818 | PerlIO_printf(Perl_debug_log, "depth %ld != 0\n", |
51371543 |
2819 | CvDEPTH(cv));); |
2820 | assert(thr == CvOWNER(cv)); |
2821 | CvOWNER(cv) = 0; |
2822 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
2823 | SvREFCNT_dec(cv); |
2824 | } |
2825 | #endif /* USE_THREADS */ |