Commit | Line | Data |
a0d0e21e |
1 | /* pp_hot.c |
2 | * |
3818b22b |
3 | * Copyright (c) 1991-2000, Larry Wall |
a0d0e21e |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public |
6 | * License or the Artistic License, as specified in the README file. |
7 | * |
8 | */ |
9 | |
10 | /* |
11 | * Then he heard Merry change the note, and up went the Horn-cry of Buckland, |
12 | * shaking the air. |
13 | * |
14 | * Awake! Awake! Fear, Fire, Foes! Awake! |
15 | * Fire, Foes! Awake! |
16 | */ |
17 | |
18 | #include "EXTERN.h" |
864dbfa3 |
19 | #define PERL_IN_PP_HOT_C |
a0d0e21e |
20 | #include "perl.h" |
21 | |
8ac85365 |
22 | #ifdef I_UNISTD |
23 | #include <unistd.h> |
24 | #endif |
a0ed51b3 |
25 | |
a0d0e21e |
26 | /* Hot code. */ |
27 | |
11343788 |
28 | #ifdef USE_THREADS |
51371543 |
29 | static void unset_cvowner(pTHXo_ void *cvarg); |
11343788 |
30 | #endif /* USE_THREADS */ |
31 | |
a0d0e21e |
32 | PP(pp_const) |
33 | { |
4e35701f |
34 | djSP; |
1d7c1841 |
35 | XPUSHs(cSVOP_sv); |
a0d0e21e |
36 | RETURN; |
37 | } |
38 | |
39 | PP(pp_nextstate) |
40 | { |
533c011a |
41 | PL_curcop = (COP*)PL_op; |
a0d0e21e |
42 | TAINT_NOT; /* Each statement is presumed innocent */ |
3280af22 |
43 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e |
44 | FREETMPS; |
45 | return NORMAL; |
46 | } |
47 | |
48 | PP(pp_gvsv) |
49 | { |
4e35701f |
50 | djSP; |
924508f0 |
51 | EXTEND(SP,1); |
533c011a |
52 | if (PL_op->op_private & OPpLVAL_INTRO) |
1d7c1841 |
53 | PUSHs(save_scalar(cGVOP_gv)); |
a0d0e21e |
54 | else |
1d7c1841 |
55 | PUSHs(GvSV(cGVOP_gv)); |
a0d0e21e |
56 | RETURN; |
57 | } |
58 | |
59 | PP(pp_null) |
60 | { |
61 | return NORMAL; |
62 | } |
63 | |
7399586d |
64 | PP(pp_setstate) |
65 | { |
66 | PL_curcop = (COP*)PL_op; |
67 | return NORMAL; |
68 | } |
69 | |
a0d0e21e |
70 | PP(pp_pushmark) |
71 | { |
3280af22 |
72 | PUSHMARK(PL_stack_sp); |
a0d0e21e |
73 | return NORMAL; |
74 | } |
75 | |
76 | PP(pp_stringify) |
77 | { |
4e35701f |
78 | djSP; dTARGET; |
a0d0e21e |
79 | STRLEN len; |
80 | char *s; |
81 | s = SvPV(TOPs,len); |
82 | sv_setpvn(TARG,s,len); |
234a4bc6 |
83 | if (SvUTF8(TOPs) && !IN_BYTE) |
84 | SvUTF8_on(TARG); |
a0d0e21e |
85 | SETTARG; |
86 | RETURN; |
87 | } |
88 | |
89 | PP(pp_gv) |
90 | { |
4e35701f |
91 | djSP; |
1d7c1841 |
92 | XPUSHs((SV*)cGVOP_gv); |
a0d0e21e |
93 | RETURN; |
94 | } |
95 | |
96 | PP(pp_and) |
97 | { |
4e35701f |
98 | djSP; |
a0d0e21e |
99 | if (!SvTRUE(TOPs)) |
100 | RETURN; |
101 | else { |
102 | --SP; |
103 | RETURNOP(cLOGOP->op_other); |
104 | } |
105 | } |
106 | |
107 | PP(pp_sassign) |
108 | { |
4e35701f |
109 | djSP; dPOPTOPssrl; |
748a9306 |
110 | |
533c011a |
111 | if (PL_op->op_private & OPpASSIGN_BACKWARDS) { |
a0d0e21e |
112 | SV *temp; |
113 | temp = left; left = right; right = temp; |
114 | } |
3280af22 |
115 | if (PL_tainting && PL_tainted && !SvTAINTED(left)) |
a0d0e21e |
116 | TAINT_NOT; |
54310121 |
117 | SvSetMagicSV(right, left); |
a0d0e21e |
118 | SETs(right); |
119 | RETURN; |
120 | } |
121 | |
122 | PP(pp_cond_expr) |
123 | { |
4e35701f |
124 | djSP; |
a0d0e21e |
125 | if (SvTRUEx(POPs)) |
1a67a97c |
126 | RETURNOP(cLOGOP->op_other); |
a0d0e21e |
127 | else |
1a67a97c |
128 | RETURNOP(cLOGOP->op_next); |
a0d0e21e |
129 | } |
130 | |
131 | PP(pp_unstack) |
132 | { |
133 | I32 oldsave; |
134 | TAINT_NOT; /* Each statement is presumed innocent */ |
3280af22 |
135 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e |
136 | FREETMPS; |
3280af22 |
137 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e |
138 | LEAVE_SCOPE(oldsave); |
139 | return NORMAL; |
140 | } |
141 | |
a0d0e21e |
142 | PP(pp_concat) |
143 | { |
4e35701f |
144 | djSP; dATARGET; tryAMAGICbin(concat,opASSIGN); |
748a9306 |
145 | { |
146 | dPOPTOPssrl; |
a0d0e21e |
147 | STRLEN len; |
4b19af01 |
148 | U8 *s; |
22d4bb9c |
149 | bool left_utf; |
150 | bool right_utf; |
69b47968 |
151 | |
22d4bb9c |
152 | if (TARG == right && SvGMAGICAL(right)) |
153 | mg_get(right); |
154 | if (SvGMAGICAL(left)) |
155 | mg_get(left); |
156 | |
157 | left_utf = DO_UTF8(left); |
158 | right_utf = DO_UTF8(right); |
159 | |
4b19af01 |
160 | if (left_utf != right_utf) { |
161 | if (TARG == right && !right_utf) { |
162 | sv_utf8_upgrade(TARG); /* Now straight binary copy */ |
163 | SvUTF8_on(TARG); |
164 | } |
165 | else { |
166 | /* Set TARG to PV(left), then add right */ |
167 | U8 *l, *c, *olds = NULL; |
168 | STRLEN targlen; |
22d4bb9c |
169 | s = (U8*)SvPV(right,len); |
170 | right_utf |= DO_UTF8(right); |
4b19af01 |
171 | if (TARG == right) { |
22d4bb9c |
172 | /* Take a copy since we're about to overwrite TARG */ |
173 | olds = s = (U8*)savepvn((char*)s, len); |
4b19af01 |
174 | } |
22d4bb9c |
175 | if (!SvOK(left) && SvTYPE(left) <= SVt_PVMG) |
176 | sv_setpv(left, ""); /* Suppress warning. */ |
4b19af01 |
177 | l = (U8*)SvPV(left, targlen); |
22d4bb9c |
178 | left_utf |= DO_UTF8(left); |
4b19af01 |
179 | if (TARG != left) |
180 | sv_setpvn(TARG, (char*)l, targlen); |
181 | if (!left_utf) |
182 | sv_utf8_upgrade(TARG); |
183 | /* Extend TARG to length of right (s) */ |
184 | targlen = SvCUR(TARG) + len; |
185 | if (!right_utf) { |
186 | /* plus one for each hi-byte char if we have to upgrade */ |
22d4bb9c |
187 | for (c = s; c < s + len; c++) { |
4b19af01 |
188 | if (*c & 0x80) |
189 | targlen++; |
190 | } |
191 | } |
192 | SvGROW(TARG, targlen+1); |
193 | /* And now copy, maybe upgrading right to UTF8 on the fly */ |
22d4bb9c |
194 | for (c = (U8*)SvEND(TARG); len--; s++) { |
4b19af01 |
195 | if (*s & 0x80 && !right_utf) |
196 | c = uv_to_utf8(c, *s); |
197 | else |
198 | *c++ = *s; |
199 | } |
200 | SvCUR_set(TARG, targlen); |
201 | *SvEND(TARG) = '\0'; |
202 | SvUTF8_on(TARG); |
203 | SETs(TARG); |
204 | Safefree(olds); |
205 | RETURN; |
206 | } |
207 | } |
208 | |
a0d0e21e |
209 | if (TARG != left) { |
4b19af01 |
210 | s = (U8*)SvPV(left,len); |
69b47968 |
211 | if (TARG == right) { |
4b19af01 |
212 | sv_insert(TARG, 0, 0, (char*)s, len); |
69b47968 |
213 | SETs(TARG); |
214 | RETURN; |
215 | } |
4b19af01 |
216 | sv_setpvn(TARG, (char *)s, len); |
a0d0e21e |
217 | } |
4b19af01 |
218 | else if (!SvOK(TARG) && SvTYPE(TARG) <= SVt_PVMG) |
748a9306 |
219 | sv_setpv(TARG, ""); /* Suppress warning. */ |
4b19af01 |
220 | s = (U8*)SvPV(right,len); |
5bc28da9 |
221 | if (SvOK(TARG)) { |
222 | #if defined(PERL_Y2KWARN) |
e476b1b5 |
223 | if ((SvIOK(right) || SvNOK(right)) && ckWARN(WARN_Y2K)) { |
5bc28da9 |
224 | STRLEN n; |
225 | char *s = SvPV(TARG,n); |
226 | if (n >= 2 && s[n-2] == '1' && s[n-1] == '9' |
227 | && (n == 2 || !isDIGIT(s[n-3]))) |
228 | { |
e476b1b5 |
229 | Perl_warner(aTHX_ WARN_Y2K, "Possible Y2K bug: %s", |
5bc28da9 |
230 | "about to append an integer to '19'"); |
231 | } |
232 | } |
233 | #endif |
4b19af01 |
234 | sv_catpvn(TARG, (char *)s, len); |
5bc28da9 |
235 | } |
68dc0745 |
236 | else |
4b19af01 |
237 | sv_setpvn(TARG, (char *)s, len); /* suppress warning */ |
238 | if (left_utf) |
ee8c7f54 |
239 | SvUTF8_on(TARG); |
a0d0e21e |
240 | SETTARG; |
241 | RETURN; |
748a9306 |
242 | } |
a0d0e21e |
243 | } |
244 | |
245 | PP(pp_padsv) |
246 | { |
4e35701f |
247 | djSP; dTARGET; |
a0d0e21e |
248 | XPUSHs(TARG); |
533c011a |
249 | if (PL_op->op_flags & OPf_MOD) { |
250 | if (PL_op->op_private & OPpLVAL_INTRO) |
251 | SAVECLEARSV(PL_curpad[PL_op->op_targ]); |
252 | else if (PL_op->op_private & OPpDEREF) { |
8ec5e241 |
253 | PUTBACK; |
533c011a |
254 | vivify_ref(PL_curpad[PL_op->op_targ], PL_op->op_private & OPpDEREF); |
8ec5e241 |
255 | SPAGAIN; |
256 | } |
4633a7c4 |
257 | } |
a0d0e21e |
258 | RETURN; |
259 | } |
260 | |
261 | PP(pp_readline) |
262 | { |
f5284f61 |
263 | tryAMAGICunTARGET(iter, 0); |
3280af22 |
264 | PL_last_in_gv = (GV*)(*PL_stack_sp--); |
8efb3254 |
265 | if (SvTYPE(PL_last_in_gv) != SVt_PVGV) { |
22d4bb9c |
266 | if (SvROK(PL_last_in_gv) && SvTYPE(SvRV(PL_last_in_gv)) == SVt_PVGV) |
f5284f61 |
267 | PL_last_in_gv = (GV*)SvRV(PL_last_in_gv); |
8efb3254 |
268 | else { |
f5284f61 |
269 | dSP; |
270 | XPUSHs((SV*)PL_last_in_gv); |
271 | PUTBACK; |
cea2e8a9 |
272 | pp_rv2gv(); |
f5284f61 |
273 | PL_last_in_gv = (GV*)(*PL_stack_sp--); |
f5284f61 |
274 | } |
275 | } |
a0d0e21e |
276 | return do_readline(); |
277 | } |
278 | |
279 | PP(pp_eq) |
280 | { |
22d4bb9c |
281 | djSP; tryAMAGICbinSET(eq,0); |
a0d0e21e |
282 | { |
283 | dPOPnv; |
54310121 |
284 | SETs(boolSV(TOPn == value)); |
a0d0e21e |
285 | RETURN; |
286 | } |
287 | } |
288 | |
289 | PP(pp_preinc) |
290 | { |
4e35701f |
291 | djSP; |
68dc0745 |
292 | if (SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV) |
d470f89e |
293 | DIE(aTHX_ PL_no_modify); |
25da4f38 |
294 | if (SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) && |
55497cff |
295 | SvIVX(TOPs) != IV_MAX) |
296 | { |
748a9306 |
297 | ++SvIVX(TOPs); |
55497cff |
298 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
748a9306 |
299 | } |
300 | else |
301 | sv_inc(TOPs); |
a0d0e21e |
302 | SvSETMAGIC(TOPs); |
303 | return NORMAL; |
304 | } |
305 | |
306 | PP(pp_or) |
307 | { |
4e35701f |
308 | djSP; |
a0d0e21e |
309 | if (SvTRUE(TOPs)) |
310 | RETURN; |
311 | else { |
312 | --SP; |
313 | RETURNOP(cLOGOP->op_other); |
314 | } |
315 | } |
316 | |
317 | PP(pp_add) |
318 | { |
22d4bb9c |
319 | djSP; dATARGET; tryAMAGICbin(add,opASSIGN); |
a0d0e21e |
320 | { |
7a4c00b4 |
321 | dPOPTOPnnrl_ul; |
a0d0e21e |
322 | SETn( left + right ); |
323 | RETURN; |
324 | } |
325 | } |
326 | |
327 | PP(pp_aelemfast) |
328 | { |
4e35701f |
329 | djSP; |
1d7c1841 |
330 | AV *av = GvAV(cGVOP_gv); |
533c011a |
331 | U32 lval = PL_op->op_flags & OPf_MOD; |
332 | SV** svp = av_fetch(av, PL_op->op_private, lval); |
3280af22 |
333 | SV *sv = (svp ? *svp : &PL_sv_undef); |
6ff81951 |
334 | EXTEND(SP, 1); |
be6c24e0 |
335 | if (!lval && SvGMAGICAL(sv)) /* see note in pp_helem() */ |
336 | sv = sv_mortalcopy(sv); |
337 | PUSHs(sv); |
a0d0e21e |
338 | RETURN; |
339 | } |
340 | |
341 | PP(pp_join) |
342 | { |
4e35701f |
343 | djSP; dMARK; dTARGET; |
a0d0e21e |
344 | MARK++; |
345 | do_join(TARG, *MARK, MARK, SP); |
346 | SP = MARK; |
347 | SETs(TARG); |
348 | RETURN; |
349 | } |
350 | |
351 | PP(pp_pushre) |
352 | { |
4e35701f |
353 | djSP; |
44a8e56a |
354 | #ifdef DEBUGGING |
355 | /* |
356 | * We ass_u_me that LvTARGOFF() comes first, and that two STRLENs |
357 | * will be enough to hold an OP*. |
358 | */ |
359 | SV* sv = sv_newmortal(); |
360 | sv_upgrade(sv, SVt_PVLV); |
361 | LvTYPE(sv) = '/'; |
533c011a |
362 | Copy(&PL_op, &LvTARGOFF(sv), 1, OP*); |
44a8e56a |
363 | XPUSHs(sv); |
364 | #else |
6b88bc9c |
365 | XPUSHs((SV*)PL_op); |
44a8e56a |
366 | #endif |
a0d0e21e |
367 | RETURN; |
368 | } |
369 | |
370 | /* Oversized hot code. */ |
371 | |
372 | PP(pp_print) |
373 | { |
4e35701f |
374 | djSP; dMARK; dORIGMARK; |
a0d0e21e |
375 | GV *gv; |
376 | IO *io; |
760ac839 |
377 | register PerlIO *fp; |
236988e4 |
378 | MAGIC *mg; |
2d8e6c8d |
379 | STRLEN n_a; |
a0d0e21e |
380 | |
533c011a |
381 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e |
382 | gv = (GV*)*++MARK; |
383 | else |
3280af22 |
384 | gv = PL_defoutgv; |
155aba94 |
385 | if ((mg = SvTIED_mg((SV*)gv, 'q'))) { |
22d4bb9c |
386 | had_magic: |
68dc0745 |
387 | if (MARK == ORIGMARK) { |
22d4bb9c |
388 | /* If using default handle then we need to make space to |
a60c0954 |
389 | * pass object as 1st arg, so move other args up ... |
390 | */ |
4352c267 |
391 | MEXTEND(SP, 1); |
68dc0745 |
392 | ++MARK; |
393 | Move(MARK, MARK + 1, (SP - MARK) + 1, SV*); |
394 | ++SP; |
395 | } |
396 | PUSHMARK(MARK - 1); |
33c27489 |
397 | *MARK = SvTIED_obj((SV*)gv, mg); |
68dc0745 |
398 | PUTBACK; |
236988e4 |
399 | ENTER; |
864dbfa3 |
400 | call_method("PRINT", G_SCALAR); |
236988e4 |
401 | LEAVE; |
402 | SPAGAIN; |
68dc0745 |
403 | MARK = ORIGMARK + 1; |
404 | *MARK = *SP; |
405 | SP = MARK; |
236988e4 |
406 | RETURN; |
407 | } |
a0d0e21e |
408 | if (!(io = GvIO(gv))) { |
22d4bb9c |
409 | dTHR; |
410 | if ((GvEGV(gv)) && (mg = SvTIED_mg((SV*)GvEGV(gv),'q'))) |
411 | goto had_magic; |
412 | if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) |
413 | report_evil_fh(gv, io, PL_op->op_type); |
748a9306 |
414 | SETERRNO(EBADF,RMS$_IFI); |
a0d0e21e |
415 | goto just_say_no; |
416 | } |
417 | else if (!(fp = IoOFP(io))) { |
599cee73 |
418 | if (ckWARN2(WARN_CLOSED, WARN_IO)) { |
69282e91 |
419 | if (IoIFP(io)) { |
22d4bb9c |
420 | /* integrate with report_evil_fh()? */ |
421 | char *name = NULL; |
422 | if (isGV(gv)) { |
423 | SV* sv = sv_newmortal(); |
424 | gv_efullname4(sv, gv, Nullch, FALSE); |
425 | name = SvPV_nolen(sv); |
426 | } |
427 | if (name && *name) |
428 | Perl_warner(aTHX_ WARN_IO, |
429 | "Filehandle %s opened only for input", name); |
430 | else |
431 | Perl_warner(aTHX_ WARN_IO, |
432 | "Filehandle opened only for input"); |
69282e91 |
433 | } |
22d4bb9c |
434 | else if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) |
435 | report_evil_fh(gv, io, PL_op->op_type); |
a0d0e21e |
436 | } |
748a9306 |
437 | SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI); |
a0d0e21e |
438 | goto just_say_no; |
439 | } |
440 | else { |
441 | MARK++; |
3280af22 |
442 | if (PL_ofslen) { |
a0d0e21e |
443 | while (MARK <= SP) { |
444 | if (!do_print(*MARK, fp)) |
445 | break; |
446 | MARK++; |
447 | if (MARK <= SP) { |
3280af22 |
448 | if (PerlIO_write(fp, PL_ofs, PL_ofslen) == 0 || PerlIO_error(fp)) { |
a0d0e21e |
449 | MARK--; |
450 | break; |
451 | } |
452 | } |
453 | } |
454 | } |
455 | else { |
456 | while (MARK <= SP) { |
457 | if (!do_print(*MARK, fp)) |
458 | break; |
459 | MARK++; |
460 | } |
461 | } |
462 | if (MARK <= SP) |
463 | goto just_say_no; |
464 | else { |
3280af22 |
465 | if (PL_orslen) |
466 | if (PerlIO_write(fp, PL_ors, PL_orslen) == 0 || PerlIO_error(fp)) |
a0d0e21e |
467 | goto just_say_no; |
468 | |
469 | if (IoFLAGS(io) & IOf_FLUSH) |
760ac839 |
470 | if (PerlIO_flush(fp) == EOF) |
a0d0e21e |
471 | goto just_say_no; |
472 | } |
473 | } |
474 | SP = ORIGMARK; |
3280af22 |
475 | PUSHs(&PL_sv_yes); |
a0d0e21e |
476 | RETURN; |
477 | |
478 | just_say_no: |
479 | SP = ORIGMARK; |
3280af22 |
480 | PUSHs(&PL_sv_undef); |
a0d0e21e |
481 | RETURN; |
482 | } |
483 | |
484 | PP(pp_rv2av) |
485 | { |
f5284f61 |
486 | djSP; dTOPss; |
a0d0e21e |
487 | AV *av; |
488 | |
489 | if (SvROK(sv)) { |
490 | wasref: |
f5284f61 |
491 | tryAMAGICunDEREF(to_av); |
492 | |
a0d0e21e |
493 | av = (AV*)SvRV(sv); |
494 | if (SvTYPE(av) != SVt_PVAV) |
cea2e8a9 |
495 | DIE(aTHX_ "Not an ARRAY reference"); |
533c011a |
496 | if (PL_op->op_flags & OPf_REF) { |
f5284f61 |
497 | SETs((SV*)av); |
a0d0e21e |
498 | RETURN; |
499 | } |
500 | } |
501 | else { |
502 | if (SvTYPE(sv) == SVt_PVAV) { |
503 | av = (AV*)sv; |
533c011a |
504 | if (PL_op->op_flags & OPf_REF) { |
f5284f61 |
505 | SETs((SV*)av); |
a0d0e21e |
506 | RETURN; |
507 | } |
508 | } |
509 | else { |
67955e0c |
510 | GV *gv; |
22d4bb9c |
511 | |
a0d0e21e |
512 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 |
513 | char *sym; |
4b19af01 |
514 | STRLEN len; |
748a9306 |
515 | |
a0d0e21e |
516 | if (SvGMAGICAL(sv)) { |
517 | mg_get(sv); |
518 | if (SvROK(sv)) |
519 | goto wasref; |
520 | } |
521 | if (!SvOK(sv)) { |
533c011a |
522 | if (PL_op->op_flags & OPf_REF || |
523 | PL_op->op_private & HINT_STRICT_REFS) |
cea2e8a9 |
524 | DIE(aTHX_ PL_no_usym, "an ARRAY"); |
599cee73 |
525 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 |
526 | report_uninit(); |
f5284f61 |
527 | if (GIMME == G_ARRAY) { |
c2444246 |
528 | (void)POPs; |
4633a7c4 |
529 | RETURN; |
f5284f61 |
530 | } |
531 | RETSETUNDEF; |
a0d0e21e |
532 | } |
4b19af01 |
533 | sym = SvPV(sv,len); |
35cd451c |
534 | if ((PL_op->op_flags & OPf_SPECIAL) && |
535 | !(PL_op->op_flags & OPf_MOD)) |
536 | { |
537 | gv = (GV*)gv_fetchpv(sym, FALSE, SVt_PVAV); |
4b19af01 |
538 | if (!gv |
539 | && (!is_gv_magical(sym,len,0) |
540 | || !(gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVAV)))) |
541 | { |
35cd451c |
542 | RETSETUNDEF; |
4b19af01 |
543 | } |
35cd451c |
544 | } |
545 | else { |
546 | if (PL_op->op_private & HINT_STRICT_REFS) |
cea2e8a9 |
547 | DIE(aTHX_ PL_no_symref, sym, "an ARRAY"); |
35cd451c |
548 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVAV); |
549 | } |
550 | } |
551 | else { |
67955e0c |
552 | gv = (GV*)sv; |
a0d0e21e |
553 | } |
67955e0c |
554 | av = GvAVn(gv); |
533c011a |
555 | if (PL_op->op_private & OPpLVAL_INTRO) |
67955e0c |
556 | av = save_ary(gv); |
533c011a |
557 | if (PL_op->op_flags & OPf_REF) { |
f5284f61 |
558 | SETs((SV*)av); |
a0d0e21e |
559 | RETURN; |
560 | } |
561 | } |
562 | } |
563 | |
564 | if (GIMME == G_ARRAY) { |
565 | I32 maxarg = AvFILL(av) + 1; |
c2444246 |
566 | (void)POPs; /* XXXX May be optimized away? */ |
22d4bb9c |
567 | EXTEND(SP, maxarg); |
93965878 |
568 | if (SvRMAGICAL(av)) { |
22d4bb9c |
569 | U32 i; |
93965878 |
570 | for (i=0; i < maxarg; i++) { |
571 | SV **svp = av_fetch(av, i, FALSE); |
3280af22 |
572 | SP[i+1] = (svp) ? *svp : &PL_sv_undef; |
93965878 |
573 | } |
22d4bb9c |
574 | } |
93965878 |
575 | else { |
576 | Copy(AvARRAY(av), SP+1, maxarg, SV*); |
577 | } |
a0d0e21e |
578 | SP += maxarg; |
579 | } |
580 | else { |
581 | dTARGET; |
582 | I32 maxarg = AvFILL(av) + 1; |
f5284f61 |
583 | SETi(maxarg); |
a0d0e21e |
584 | } |
585 | RETURN; |
586 | } |
587 | |
588 | PP(pp_rv2hv) |
589 | { |
4e35701f |
590 | djSP; dTOPss; |
a0d0e21e |
591 | HV *hv; |
592 | |
593 | if (SvROK(sv)) { |
594 | wasref: |
f5284f61 |
595 | tryAMAGICunDEREF(to_hv); |
596 | |
a0d0e21e |
597 | hv = (HV*)SvRV(sv); |
c750a3ec |
598 | if (SvTYPE(hv) != SVt_PVHV && SvTYPE(hv) != SVt_PVAV) |
cea2e8a9 |
599 | DIE(aTHX_ "Not a HASH reference"); |
533c011a |
600 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e |
601 | SETs((SV*)hv); |
602 | RETURN; |
603 | } |
604 | } |
605 | else { |
c750a3ec |
606 | if (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) { |
a0d0e21e |
607 | hv = (HV*)sv; |
533c011a |
608 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e |
609 | SETs((SV*)hv); |
610 | RETURN; |
611 | } |
612 | } |
613 | else { |
67955e0c |
614 | GV *gv; |
22d4bb9c |
615 | |
a0d0e21e |
616 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 |
617 | char *sym; |
4b19af01 |
618 | STRLEN len; |
748a9306 |
619 | |
a0d0e21e |
620 | if (SvGMAGICAL(sv)) { |
621 | mg_get(sv); |
622 | if (SvROK(sv)) |
623 | goto wasref; |
624 | } |
625 | if (!SvOK(sv)) { |
533c011a |
626 | if (PL_op->op_flags & OPf_REF || |
627 | PL_op->op_private & HINT_STRICT_REFS) |
cea2e8a9 |
628 | DIE(aTHX_ PL_no_usym, "a HASH"); |
599cee73 |
629 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 |
630 | report_uninit(); |
4633a7c4 |
631 | if (GIMME == G_ARRAY) { |
632 | SP--; |
633 | RETURN; |
634 | } |
a0d0e21e |
635 | RETSETUNDEF; |
636 | } |
4b19af01 |
637 | sym = SvPV(sv,len); |
35cd451c |
638 | if ((PL_op->op_flags & OPf_SPECIAL) && |
639 | !(PL_op->op_flags & OPf_MOD)) |
640 | { |
641 | gv = (GV*)gv_fetchpv(sym, FALSE, SVt_PVHV); |
4b19af01 |
642 | if (!gv |
643 | && (!is_gv_magical(sym,len,0) |
644 | || !(gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVHV)))) |
645 | { |
35cd451c |
646 | RETSETUNDEF; |
4b19af01 |
647 | } |
35cd451c |
648 | } |
649 | else { |
650 | if (PL_op->op_private & HINT_STRICT_REFS) |
cea2e8a9 |
651 | DIE(aTHX_ PL_no_symref, sym, "a HASH"); |
35cd451c |
652 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVHV); |
653 | } |
654 | } |
655 | else { |
67955e0c |
656 | gv = (GV*)sv; |
a0d0e21e |
657 | } |
67955e0c |
658 | hv = GvHVn(gv); |
533c011a |
659 | if (PL_op->op_private & OPpLVAL_INTRO) |
67955e0c |
660 | hv = save_hash(gv); |
533c011a |
661 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e |
662 | SETs((SV*)hv); |
663 | RETURN; |
664 | } |
665 | } |
666 | } |
667 | |
668 | if (GIMME == G_ARRAY) { /* array wanted */ |
3280af22 |
669 | *PL_stack_sp = (SV*)hv; |
cea2e8a9 |
670 | return do_kv(); |
a0d0e21e |
671 | } |
672 | else { |
673 | dTARGET; |
4b154ab5 |
674 | if (SvTYPE(hv) == SVt_PVAV) |
675 | hv = avhv_keys((AV*)hv); |
b9c39e73 |
676 | if (HvFILL(hv)) |
57def98f |
677 | Perl_sv_setpvf(aTHX_ TARG, "%"IVdf"/%"IVdf, |
678 | (IV)HvFILL(hv), (IV)HvMAX(hv) + 1); |
a0d0e21e |
679 | else |
680 | sv_setiv(TARG, 0); |
c750a3ec |
681 | |
a0d0e21e |
682 | SETTARG; |
683 | RETURN; |
684 | } |
685 | } |
686 | |
10c8fecd |
687 | STATIC int |
688 | S_do_maybe_phash(pTHX_ AV *ary, SV **lelem, SV **firstlelem, SV **relem, |
689 | SV **lastrelem) |
690 | { |
691 | OP *leftop; |
10c8fecd |
692 | I32 i; |
693 | |
694 | leftop = ((BINOP*)PL_op)->op_last; |
695 | assert(leftop); |
696 | assert(leftop->op_type == OP_NULL && leftop->op_targ == OP_LIST); |
697 | leftop = ((LISTOP*)leftop)->op_first; |
698 | assert(leftop); |
699 | /* Skip PUSHMARK and each element already assigned to. */ |
700 | for (i = lelem - firstlelem; i > 0; i--) { |
701 | leftop = leftop->op_sibling; |
702 | assert(leftop); |
703 | } |
704 | if (leftop->op_type != OP_RV2HV) |
705 | return 0; |
706 | |
707 | /* pseudohash */ |
708 | if (av_len(ary) > 0) |
709 | av_fill(ary, 0); /* clear all but the fields hash */ |
710 | if (lastrelem >= relem) { |
711 | while (relem < lastrelem) { /* gobble up all the rest */ |
712 | SV *tmpstr; |
713 | assert(relem[0]); |
714 | assert(relem[1]); |
715 | /* Avoid a memory leak when avhv_store_ent dies. */ |
716 | tmpstr = sv_newmortal(); |
717 | sv_setsv(tmpstr,relem[1]); /* value */ |
718 | relem[1] = tmpstr; |
719 | if (avhv_store_ent(ary,relem[0],tmpstr,0)) |
ee8c7f54 |
720 | (void)SvREFCNT_inc(tmpstr); |
10c8fecd |
721 | if (SvMAGICAL(ary) != 0 && SvSMAGICAL(tmpstr)) |
722 | mg_set(tmpstr); |
723 | relem += 2; |
724 | TAINT_NOT; |
725 | } |
726 | } |
727 | if (relem == lastrelem) |
728 | return 1; |
729 | return 2; |
730 | } |
731 | |
732 | STATIC void |
733 | S_do_oddball(pTHX_ HV *hash, SV **relem, SV **firstrelem) |
734 | { |
735 | if (*relem) { |
736 | SV *tmpstr; |
737 | if (ckWARN(WARN_MISC)) { |
738 | if (relem == firstrelem && |
739 | SvROK(*relem) && |
740 | (SvTYPE(SvRV(*relem)) == SVt_PVAV || |
741 | SvTYPE(SvRV(*relem)) == SVt_PVHV)) |
742 | { |
743 | Perl_warner(aTHX_ WARN_MISC, |
744 | "Reference found where even-sized list expected"); |
745 | } |
746 | else |
747 | Perl_warner(aTHX_ WARN_MISC, |
748 | "Odd number of elements in hash assignment"); |
749 | } |
750 | if (SvTYPE(hash) == SVt_PVAV) { |
751 | /* pseudohash */ |
752 | tmpstr = sv_newmortal(); |
753 | if (avhv_store_ent((AV*)hash,*relem,tmpstr,0)) |
ee8c7f54 |
754 | (void)SvREFCNT_inc(tmpstr); |
10c8fecd |
755 | if (SvMAGICAL(hash) && SvSMAGICAL(tmpstr)) |
756 | mg_set(tmpstr); |
757 | } |
758 | else { |
759 | HE *didstore; |
760 | tmpstr = NEWSV(29,0); |
761 | didstore = hv_store_ent(hash,*relem,tmpstr,0); |
762 | if (SvMAGICAL(hash)) { |
763 | if (SvSMAGICAL(tmpstr)) |
764 | mg_set(tmpstr); |
765 | if (!didstore) |
766 | sv_2mortal(tmpstr); |
767 | } |
768 | } |
769 | TAINT_NOT; |
770 | } |
771 | } |
772 | |
a0d0e21e |
773 | PP(pp_aassign) |
774 | { |
4e35701f |
775 | djSP; |
3280af22 |
776 | SV **lastlelem = PL_stack_sp; |
777 | SV **lastrelem = PL_stack_base + POPMARK; |
778 | SV **firstrelem = PL_stack_base + POPMARK + 1; |
a0d0e21e |
779 | SV **firstlelem = lastrelem + 1; |
780 | |
781 | register SV **relem; |
782 | register SV **lelem; |
783 | |
784 | register SV *sv; |
785 | register AV *ary; |
786 | |
54310121 |
787 | I32 gimme; |
a0d0e21e |
788 | HV *hash; |
789 | I32 i; |
790 | int magic; |
791 | |
3280af22 |
792 | PL_delaymagic = DM_DELAY; /* catch simultaneous items */ |
a0d0e21e |
793 | |
794 | /* If there's a common identifier on both sides we have to take |
795 | * special care that assigning the identifier on the left doesn't |
796 | * clobber a value on the right that's used later in the list. |
797 | */ |
10c8fecd |
798 | if (PL_op->op_private & (OPpASSIGN_COMMON)) { |
cc5e57d2 |
799 | EXTEND_MORTAL(lastrelem - firstrelem + 1); |
10c8fecd |
800 | for (relem = firstrelem; relem <= lastrelem; relem++) { |
801 | /*SUPPRESS 560*/ |
155aba94 |
802 | if ((sv = *relem)) { |
a1f49e72 |
803 | TAINT_NOT; /* Each item is independent */ |
10c8fecd |
804 | *relem = sv_mortalcopy(sv); |
a1f49e72 |
805 | } |
10c8fecd |
806 | } |
a0d0e21e |
807 | } |
808 | |
809 | relem = firstrelem; |
810 | lelem = firstlelem; |
811 | ary = Null(AV*); |
812 | hash = Null(HV*); |
10c8fecd |
813 | |
a0d0e21e |
814 | while (lelem <= lastlelem) { |
bbce6d69 |
815 | TAINT_NOT; /* Each item stands on its own, taintwise. */ |
a0d0e21e |
816 | sv = *lelem++; |
817 | switch (SvTYPE(sv)) { |
818 | case SVt_PVAV: |
819 | ary = (AV*)sv; |
748a9306 |
820 | magic = SvMAGICAL(ary) != 0; |
10c8fecd |
821 | if (PL_op->op_private & OPpASSIGN_HASH) { |
822 | switch (do_maybe_phash(ary, lelem, firstlelem, relem, |
823 | lastrelem)) |
824 | { |
825 | case 0: |
826 | goto normal_array; |
827 | case 1: |
828 | do_oddball((HV*)ary, relem, firstrelem); |
829 | } |
830 | relem = lastrelem + 1; |
831 | break; |
832 | } |
833 | normal_array: |
a0d0e21e |
834 | av_clear(ary); |
7e42bd57 |
835 | av_extend(ary, lastrelem - relem); |
a0d0e21e |
836 | i = 0; |
837 | while (relem <= lastrelem) { /* gobble up all the rest */ |
5117ca91 |
838 | SV **didstore; |
a0d0e21e |
839 | sv = NEWSV(28,0); |
840 | assert(*relem); |
841 | sv_setsv(sv,*relem); |
842 | *(relem++) = sv; |
5117ca91 |
843 | didstore = av_store(ary,i++,sv); |
844 | if (magic) { |
fb73857a |
845 | if (SvSMAGICAL(sv)) |
846 | mg_set(sv); |
5117ca91 |
847 | if (!didstore) |
8127e0e3 |
848 | sv_2mortal(sv); |
5117ca91 |
849 | } |
bbce6d69 |
850 | TAINT_NOT; |
a0d0e21e |
851 | } |
852 | break; |
10c8fecd |
853 | case SVt_PVHV: { /* normal hash */ |
a0d0e21e |
854 | SV *tmpstr; |
855 | |
856 | hash = (HV*)sv; |
748a9306 |
857 | magic = SvMAGICAL(hash) != 0; |
a0d0e21e |
858 | hv_clear(hash); |
859 | |
860 | while (relem < lastrelem) { /* gobble up all the rest */ |
5117ca91 |
861 | HE *didstore; |
4633a7c4 |
862 | if (*relem) |
a0d0e21e |
863 | sv = *(relem++); |
4633a7c4 |
864 | else |
3280af22 |
865 | sv = &PL_sv_no, relem++; |
a0d0e21e |
866 | tmpstr = NEWSV(29,0); |
867 | if (*relem) |
868 | sv_setsv(tmpstr,*relem); /* value */ |
869 | *(relem++) = tmpstr; |
5117ca91 |
870 | didstore = hv_store_ent(hash,sv,tmpstr,0); |
871 | if (magic) { |
fb73857a |
872 | if (SvSMAGICAL(tmpstr)) |
873 | mg_set(tmpstr); |
5117ca91 |
874 | if (!didstore) |
8127e0e3 |
875 | sv_2mortal(tmpstr); |
5117ca91 |
876 | } |
bbce6d69 |
877 | TAINT_NOT; |
8e07c86e |
878 | } |
6a0deba8 |
879 | if (relem == lastrelem) { |
10c8fecd |
880 | do_oddball(hash, relem, firstrelem); |
6a0deba8 |
881 | relem++; |
1930e939 |
882 | } |
a0d0e21e |
883 | } |
884 | break; |
885 | default: |
6fc92669 |
886 | if (SvIMMORTAL(sv)) { |
887 | if (relem <= lastrelem) |
888 | relem++; |
889 | break; |
a0d0e21e |
890 | } |
891 | if (relem <= lastrelem) { |
892 | sv_setsv(sv, *relem); |
893 | *(relem++) = sv; |
894 | } |
895 | else |
3280af22 |
896 | sv_setsv(sv, &PL_sv_undef); |
a0d0e21e |
897 | SvSETMAGIC(sv); |
898 | break; |
899 | } |
900 | } |
3280af22 |
901 | if (PL_delaymagic & ~DM_DELAY) { |
902 | if (PL_delaymagic & DM_UID) { |
a0d0e21e |
903 | #ifdef HAS_SETRESUID |
b28d0864 |
904 | (void)setresuid(PL_uid,PL_euid,(Uid_t)-1); |
56febc5e |
905 | #else |
906 | # ifdef HAS_SETREUID |
3280af22 |
907 | (void)setreuid(PL_uid,PL_euid); |
56febc5e |
908 | # else |
909 | # ifdef HAS_SETRUID |
b28d0864 |
910 | if ((PL_delaymagic & DM_UID) == DM_RUID) { |
911 | (void)setruid(PL_uid); |
912 | PL_delaymagic &= ~DM_RUID; |
a0d0e21e |
913 | } |
56febc5e |
914 | # endif /* HAS_SETRUID */ |
915 | # ifdef HAS_SETEUID |
b28d0864 |
916 | if ((PL_delaymagic & DM_UID) == DM_EUID) { |
917 | (void)seteuid(PL_uid); |
918 | PL_delaymagic &= ~DM_EUID; |
a0d0e21e |
919 | } |
56febc5e |
920 | # endif /* HAS_SETEUID */ |
b28d0864 |
921 | if (PL_delaymagic & DM_UID) { |
922 | if (PL_uid != PL_euid) |
cea2e8a9 |
923 | DIE(aTHX_ "No setreuid available"); |
b28d0864 |
924 | (void)PerlProc_setuid(PL_uid); |
a0d0e21e |
925 | } |
56febc5e |
926 | # endif /* HAS_SETREUID */ |
927 | #endif /* HAS_SETRESUID */ |
d8eceb89 |
928 | PL_uid = PerlProc_getuid(); |
929 | PL_euid = PerlProc_geteuid(); |
a0d0e21e |
930 | } |
3280af22 |
931 | if (PL_delaymagic & DM_GID) { |
a0d0e21e |
932 | #ifdef HAS_SETRESGID |
b28d0864 |
933 | (void)setresgid(PL_gid,PL_egid,(Gid_t)-1); |
56febc5e |
934 | #else |
935 | # ifdef HAS_SETREGID |
3280af22 |
936 | (void)setregid(PL_gid,PL_egid); |
56febc5e |
937 | # else |
938 | # ifdef HAS_SETRGID |
b28d0864 |
939 | if ((PL_delaymagic & DM_GID) == DM_RGID) { |
940 | (void)setrgid(PL_gid); |
941 | PL_delaymagic &= ~DM_RGID; |
a0d0e21e |
942 | } |
56febc5e |
943 | # endif /* HAS_SETRGID */ |
944 | # ifdef HAS_SETEGID |
b28d0864 |
945 | if ((PL_delaymagic & DM_GID) == DM_EGID) { |
946 | (void)setegid(PL_gid); |
947 | PL_delaymagic &= ~DM_EGID; |
a0d0e21e |
948 | } |
56febc5e |
949 | # endif /* HAS_SETEGID */ |
b28d0864 |
950 | if (PL_delaymagic & DM_GID) { |
951 | if (PL_gid != PL_egid) |
cea2e8a9 |
952 | DIE(aTHX_ "No setregid available"); |
b28d0864 |
953 | (void)PerlProc_setgid(PL_gid); |
a0d0e21e |
954 | } |
56febc5e |
955 | # endif /* HAS_SETREGID */ |
956 | #endif /* HAS_SETRESGID */ |
d8eceb89 |
957 | PL_gid = PerlProc_getgid(); |
958 | PL_egid = PerlProc_getegid(); |
a0d0e21e |
959 | } |
3280af22 |
960 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
a0d0e21e |
961 | } |
3280af22 |
962 | PL_delaymagic = 0; |
54310121 |
963 | |
964 | gimme = GIMME_V; |
965 | if (gimme == G_VOID) |
966 | SP = firstrelem - 1; |
967 | else if (gimme == G_SCALAR) { |
968 | dTARGET; |
969 | SP = firstrelem; |
970 | SETi(lastrelem - firstrelem + 1); |
971 | } |
972 | else { |
a0d0e21e |
973 | if (ary || hash) |
974 | SP = lastrelem; |
975 | else |
976 | SP = firstrelem + (lastlelem - firstlelem); |
0c8c7a05 |
977 | lelem = firstlelem + (relem - firstrelem); |
5f05dabc |
978 | while (relem <= SP) |
3280af22 |
979 | *relem++ = (lelem <= lastlelem) ? *lelem++ : &PL_sv_undef; |
a0d0e21e |
980 | } |
54310121 |
981 | RETURN; |
a0d0e21e |
982 | } |
983 | |
8782bef2 |
984 | PP(pp_qr) |
985 | { |
986 | djSP; |
987 | register PMOP *pm = cPMOP; |
988 | SV *rv = sv_newmortal(); |
57668c4d |
989 | SV *sv = newSVrv(rv, "Regexp"); |
8782bef2 |
990 | sv_magic(sv,(SV*)ReREFCNT_inc(pm->op_pmregexp),'r',0,0); |
991 | RETURNX(PUSHs(rv)); |
992 | } |
993 | |
a0d0e21e |
994 | PP(pp_match) |
995 | { |
4e35701f |
996 | djSP; dTARG; |
a0d0e21e |
997 | register PMOP *pm = cPMOP; |
998 | register char *t; |
999 | register char *s; |
1000 | char *strend; |
1001 | I32 global; |
f722798b |
1002 | I32 r_flags = REXEC_CHECKED; |
1003 | char *truebase; /* Start of string */ |
d9f97599 |
1004 | register REGEXP *rx = pm->op_pmregexp; |
b3eb6a9b |
1005 | bool rxtainted; |
a0d0e21e |
1006 | I32 gimme = GIMME; |
1007 | STRLEN len; |
748a9306 |
1008 | I32 minmatch = 0; |
3280af22 |
1009 | I32 oldsave = PL_savestack_ix; |
f86702cc |
1010 | I32 update_minmatch = 1; |
e60df1fa |
1011 | I32 had_zerolen = 0; |
a0d0e21e |
1012 | |
533c011a |
1013 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e |
1014 | TARG = POPs; |
1015 | else { |
54b9620d |
1016 | TARG = DEFSV; |
a0d0e21e |
1017 | EXTEND(SP,1); |
1018 | } |
c277df42 |
1019 | PUTBACK; /* EVAL blocks need stack_sp. */ |
a0d0e21e |
1020 | s = SvPV(TARG, len); |
1021 | strend = s + len; |
1022 | if (!s) |
cea2e8a9 |
1023 | DIE(aTHX_ "panic: do_match"); |
b3eb6a9b |
1024 | rxtainted = ((pm->op_pmdynflags & PMdf_TAINTED) || |
3280af22 |
1025 | (PL_tainted && (pm->op_pmflags & PMf_RETAINT))); |
9212bbba |
1026 | TAINT_NOT; |
a0d0e21e |
1027 | |
48c036b1 |
1028 | if (pm->op_pmdynflags & PMdf_USED) { |
c277df42 |
1029 | failure: |
a0d0e21e |
1030 | if (gimme == G_ARRAY) |
1031 | RETURN; |
1032 | RETPUSHNO; |
1033 | } |
1034 | |
3280af22 |
1035 | if (!rx->prelen && PL_curpm) { |
1036 | pm = PL_curpm; |
d9f97599 |
1037 | rx = pm->op_pmregexp; |
a0d0e21e |
1038 | } |
d9f97599 |
1039 | if (rx->minlen > len) goto failure; |
c277df42 |
1040 | |
a0d0e21e |
1041 | truebase = t = s; |
ad94a511 |
1042 | |
1043 | /* XXXX What part of this is needed with true \G-support? */ |
155aba94 |
1044 | if ((global = pm->op_pmflags & PMf_GLOBAL)) { |
cf93c79d |
1045 | rx->startp[0] = -1; |
a0d0e21e |
1046 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
1047 | MAGIC* mg = mg_find(TARG, 'g'); |
565764a8 |
1048 | if (mg && mg->mg_len >= 0) { |
b7a35066 |
1049 | if (!(rx->reganch & ROPT_GPOS_SEEN)) |
22d4bb9c |
1050 | rx->endp[0] = rx->startp[0] = mg->mg_len; |
0ef3e39e |
1051 | else if (rx->reganch & ROPT_ANCH_GPOS) { |
1052 | r_flags |= REXEC_IGNOREPOS; |
22d4bb9c |
1053 | rx->endp[0] = rx->startp[0] = mg->mg_len; |
0ef3e39e |
1054 | } |
748a9306 |
1055 | minmatch = (mg->mg_flags & MGf_MINMATCH); |
f86702cc |
1056 | update_minmatch = 0; |
748a9306 |
1057 | } |
a0d0e21e |
1058 | } |
1059 | } |
0ef3e39e |
1060 | if ((gimme != G_ARRAY && !global && rx->nparens) |
1061 | || SvTEMP(TARG) || PL_sawampersand) |
1062 | r_flags |= REXEC_COPY_STR; |
22d4bb9c |
1063 | if (SvSCREAM(TARG)) |
22e551b9 |
1064 | r_flags |= REXEC_SCREAM; |
1065 | |
a0d0e21e |
1066 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
3280af22 |
1067 | SAVEINT(PL_multiline); |
1068 | PL_multiline = pm->op_pmflags & PMf_MULTILINE; |
a0d0e21e |
1069 | } |
1070 | |
1071 | play_it_again: |
cf93c79d |
1072 | if (global && rx->startp[0] != -1) { |
1073 | t = s = rx->endp[0] + truebase; |
d9f97599 |
1074 | if ((s + rx->minlen) > strend) |
a0d0e21e |
1075 | goto nope; |
f86702cc |
1076 | if (update_minmatch++) |
e60df1fa |
1077 | minmatch = had_zerolen; |
a0d0e21e |
1078 | } |
f722798b |
1079 | if (rx->reganch & RE_USE_INTUIT) { |
1080 | s = CALLREG_INTUIT_START(aTHX_ rx, TARG, s, strend, r_flags, NULL); |
1081 | |
1082 | if (!s) |
1083 | goto nope; |
1084 | if ( (rx->reganch & ROPT_CHECK_ALL) |
22d4bb9c |
1085 | && !PL_sawampersand |
f722798b |
1086 | && ((rx->reganch & ROPT_NOSCAN) |
1087 | || !((rx->reganch & RE_INTUIT_TAIL) |
ee8c7f54 |
1088 | && (r_flags & REXEC_SCREAM))) |
1089 | && !SvROK(TARG)) /* Cannot trust since INTUIT cannot guess ^ */ |
f722798b |
1090 | goto yup; |
a0d0e21e |
1091 | } |
cea2e8a9 |
1092 | if (CALLREGEXEC(aTHX_ rx, s, strend, truebase, minmatch, TARG, NULL, r_flags)) |
bbce6d69 |
1093 | { |
3280af22 |
1094 | PL_curpm = pm; |
a0d0e21e |
1095 | if (pm->op_pmflags & PMf_ONCE) |
48c036b1 |
1096 | pm->op_pmdynflags |= PMdf_USED; |
a0d0e21e |
1097 | goto gotcha; |
1098 | } |
1099 | else |
1100 | goto ret_no; |
1101 | /*NOTREACHED*/ |
1102 | |
1103 | gotcha: |
72311751 |
1104 | if (rxtainted) |
1105 | RX_MATCH_TAINTED_on(rx); |
1106 | TAINT_IF(RX_MATCH_TAINTED(rx)); |
a0d0e21e |
1107 | if (gimme == G_ARRAY) { |
1108 | I32 iters, i, len; |
1109 | |
d9f97599 |
1110 | iters = rx->nparens; |
a0d0e21e |
1111 | if (global && !iters) |
1112 | i = 1; |
1113 | else |
1114 | i = 0; |
c277df42 |
1115 | SPAGAIN; /* EVAL blocks could move the stack. */ |
a0d0e21e |
1116 | EXTEND(SP, iters + i); |
bbce6d69 |
1117 | EXTEND_MORTAL(iters + i); |
a0d0e21e |
1118 | for (i = !i; i <= iters; i++) { |
1119 | PUSHs(sv_newmortal()); |
1120 | /*SUPPRESS 560*/ |
cf93c79d |
1121 | if ((rx->startp[i] != -1) && rx->endp[i] != -1 ) { |
1122 | len = rx->endp[i] - rx->startp[i]; |
1123 | s = rx->startp[i] + truebase; |
a0d0e21e |
1124 | sv_setpvn(*SP, s, len); |
ee8c7f54 |
1125 | if ((pm->op_pmdynflags & PMdf_UTF8) && !IN_BYTE) { |
1126 | SvUTF8_on(*SP); |
1127 | sv_utf8_downgrade(*SP, TRUE); |
1128 | } |
a0d0e21e |
1129 | } |
1130 | } |
1131 | if (global) { |
cf93c79d |
1132 | had_zerolen = (rx->startp[0] != -1 |
1133 | && rx->startp[0] == rx->endp[0]); |
c277df42 |
1134 | PUTBACK; /* EVAL blocks may use stack */ |
cf93c79d |
1135 | r_flags |= REXEC_IGNOREPOS | REXEC_NOT_FIRST; |
a0d0e21e |
1136 | goto play_it_again; |
1137 | } |
f7e33566 |
1138 | else if (!iters) |
bde848c5 |
1139 | XPUSHs(&PL_sv_yes); |
4633a7c4 |
1140 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1141 | RETURN; |
1142 | } |
1143 | else { |
1144 | if (global) { |
1145 | MAGIC* mg = 0; |
1146 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) |
1147 | mg = mg_find(TARG, 'g'); |
1148 | if (!mg) { |
1149 | sv_magic(TARG, (SV*)0, 'g', Nullch, 0); |
1150 | mg = mg_find(TARG, 'g'); |
1151 | } |
cf93c79d |
1152 | if (rx->startp[0] != -1) { |
1153 | mg->mg_len = rx->endp[0]; |
d9f97599 |
1154 | if (rx->startp[0] == rx->endp[0]) |
748a9306 |
1155 | mg->mg_flags |= MGf_MINMATCH; |
1156 | else |
1157 | mg->mg_flags &= ~MGf_MINMATCH; |
1158 | } |
a0d0e21e |
1159 | } |
4633a7c4 |
1160 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1161 | RETPUSHYES; |
1162 | } |
1163 | |
f722798b |
1164 | yup: /* Confirmed by INTUIT */ |
72311751 |
1165 | if (rxtainted) |
1166 | RX_MATCH_TAINTED_on(rx); |
1167 | TAINT_IF(RX_MATCH_TAINTED(rx)); |
3280af22 |
1168 | PL_curpm = pm; |
a0d0e21e |
1169 | if (pm->op_pmflags & PMf_ONCE) |
48c036b1 |
1170 | pm->op_pmdynflags |= PMdf_USED; |
cf93c79d |
1171 | if (RX_MATCH_COPIED(rx)) |
1172 | Safefree(rx->subbeg); |
1173 | RX_MATCH_COPIED_off(rx); |
1174 | rx->subbeg = Nullch; |
a0d0e21e |
1175 | if (global) { |
d9f97599 |
1176 | rx->subbeg = truebase; |
cf93c79d |
1177 | rx->startp[0] = s - truebase; |
f722798b |
1178 | rx->endp[0] = s - truebase + rx->minlen; |
cf93c79d |
1179 | rx->sublen = strend - truebase; |
a0d0e21e |
1180 | goto gotcha; |
22d4bb9c |
1181 | } |
3280af22 |
1182 | if (PL_sawampersand) { |
cf93c79d |
1183 | I32 off; |
a0d0e21e |
1184 | |
cf93c79d |
1185 | rx->subbeg = savepvn(t, strend - t); |
1186 | rx->sublen = strend - t; |
1187 | RX_MATCH_COPIED_on(rx); |
1188 | off = rx->startp[0] = s - t; |
f722798b |
1189 | rx->endp[0] = off + rx->minlen; |
cf93c79d |
1190 | } |
1191 | else { /* startp/endp are used by @- @+. */ |
1192 | rx->startp[0] = s - truebase; |
f722798b |
1193 | rx->endp[0] = s - truebase + rx->minlen; |
a0d0e21e |
1194 | } |
fc19f8d0 |
1195 | rx->nparens = rx->lastparen = 0; /* used by @- and @+ */ |
4633a7c4 |
1196 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1197 | RETPUSHYES; |
1198 | |
1199 | nope: |
a0d0e21e |
1200 | ret_no: |
c90c0ff4 |
1201 | if (global && !(pm->op_pmflags & PMf_CONTINUE)) { |
a0d0e21e |
1202 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
1203 | MAGIC* mg = mg_find(TARG, 'g'); |
1204 | if (mg) |
565764a8 |
1205 | mg->mg_len = -1; |
a0d0e21e |
1206 | } |
1207 | } |
4633a7c4 |
1208 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1209 | if (gimme == G_ARRAY) |
1210 | RETURN; |
1211 | RETPUSHNO; |
1212 | } |
1213 | |
1214 | OP * |
864dbfa3 |
1215 | Perl_do_readline(pTHX) |
a0d0e21e |
1216 | { |
1217 | dSP; dTARGETSTACKED; |
1218 | register SV *sv; |
1219 | STRLEN tmplen = 0; |
1220 | STRLEN offset; |
760ac839 |
1221 | PerlIO *fp; |
3280af22 |
1222 | register IO *io = GvIO(PL_last_in_gv); |
533c011a |
1223 | register I32 type = PL_op->op_type; |
54310121 |
1224 | I32 gimme = GIMME_V; |
e79b0511 |
1225 | MAGIC *mg; |
a0d0e21e |
1226 | |
155aba94 |
1227 | if ((mg = SvTIED_mg((SV*)PL_last_in_gv, 'q'))) { |
e79b0511 |
1228 | PUSHMARK(SP); |
33c27489 |
1229 | XPUSHs(SvTIED_obj((SV*)PL_last_in_gv, mg)); |
e79b0511 |
1230 | PUTBACK; |
1231 | ENTER; |
864dbfa3 |
1232 | call_method("READLINE", gimme); |
e79b0511 |
1233 | LEAVE; |
1234 | SPAGAIN; |
54310121 |
1235 | if (gimme == G_SCALAR) |
1236 | SvSetMagicSV_nosteal(TARG, TOPs); |
e79b0511 |
1237 | RETURN; |
1238 | } |
a0d0e21e |
1239 | fp = Nullfp; |
1240 | if (io) { |
1241 | fp = IoIFP(io); |
1242 | if (!fp) { |
1243 | if (IoFLAGS(io) & IOf_ARGV) { |
1244 | if (IoFLAGS(io) & IOf_START) { |
a0d0e21e |
1245 | IoLINES(io) = 0; |
3280af22 |
1246 | if (av_len(GvAVn(PL_last_in_gv)) < 0) { |
1d7c1841 |
1247 | IoFLAGS(io) &= ~IOf_START; |
9d116dd7 |
1248 | do_open(PL_last_in_gv,"-",1,FALSE,O_RDONLY,0,Nullfp); |
3280af22 |
1249 | sv_setpvn(GvSV(PL_last_in_gv), "-", 1); |
1250 | SvSETMAGIC(GvSV(PL_last_in_gv)); |
a2008d6d |
1251 | fp = IoIFP(io); |
1252 | goto have_fp; |
a0d0e21e |
1253 | } |
1254 | } |
3280af22 |
1255 | fp = nextargv(PL_last_in_gv); |
a0d0e21e |
1256 | if (!fp) { /* Note: fp != IoIFP(io) */ |
3280af22 |
1257 | (void)do_close(PL_last_in_gv, FALSE); /* now it does*/ |
a0d0e21e |
1258 | } |
1259 | } |
1260 | else if (type == OP_GLOB) { |
1261 | SV *tmpcmd = NEWSV(55, 0); |
1262 | SV *tmpglob = POPs; |
1263 | ENTER; |
1264 | SAVEFREESV(tmpcmd); |
1265 | #ifdef VMS /* expand the wildcards right here, rather than opening a pipe, */ |
1266 | /* since spawning off a process is a real performance hit */ |
1267 | { |
1268 | #include <descrip.h> |
1269 | #include <lib$routines.h> |
1270 | #include <nam.h> |
1271 | #include <rmsdef.h> |
1272 | char rslt[NAM$C_MAXRSS+1+sizeof(unsigned short int)] = {'\0','\0'}; |
1273 | char vmsspec[NAM$C_MAXRSS+1]; |
1274 | char *rstr = rslt + sizeof(unsigned short int), *begin, *end, *cp; |
1275 | char tmpfnam[L_tmpnam] = "SYS$SCRATCH:"; |
1276 | $DESCRIPTOR(dfltdsc,"SYS$DISK:[]*.*;"); |
760ac839 |
1277 | PerlIO *tmpfp; |
a0d0e21e |
1278 | STRLEN i; |
1279 | struct dsc$descriptor_s wilddsc |
1280 | = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0}; |
1281 | struct dsc$descriptor_vs rsdsc |
1282 | = {sizeof rslt, DSC$K_DTYPE_VT, DSC$K_CLASS_VS, rslt}; |
1283 | unsigned long int cxt = 0, sts = 0, ok = 1, hasdir = 0, hasver = 0, isunix = 0; |
1284 | |
1285 | /* We could find out if there's an explicit dev/dir or version |
1286 | by peeking into lib$find_file's internal context at |
1287 | ((struct NAM *)((struct FAB *)cxt)->fab$l_nam)->nam$l_fnb |
1288 | but that's unsupported, so I don't want to do it now and |
1289 | have it bite someone in the future. */ |
6ad3d225 |
1290 | strcat(tmpfnam,PerlLIO_tmpnam(NULL)); |
a0d0e21e |
1291 | cp = SvPV(tmpglob,i); |
1292 | for (; i; i--) { |
1293 | if (cp[i] == ';') hasver = 1; |
1294 | if (cp[i] == '.') { |
1295 | if (sts) hasver = 1; |
1296 | else sts = 1; |
1297 | } |
1298 | if (cp[i] == '/') { |
1299 | hasdir = isunix = 1; |
1300 | break; |
748a9306 |
1301 | } |
a0d0e21e |
1302 | if (cp[i] == ']' || cp[i] == '>' || cp[i] == ':') { |
1303 | hasdir = 1; |
1304 | break; |
1305 | } |
1306 | } |
760ac839 |
1307 | if ((tmpfp = PerlIO_open(tmpfnam,"w+","fop=dlt")) != NULL) { |
09b7f37c |
1308 | Stat_t st; |
c6ed36e1 |
1309 | if (!PerlLIO_stat(SvPVX(tmpglob),&st) && S_ISDIR(st.st_mode)) |
09b7f37c |
1310 | ok = ((wilddsc.dsc$a_pointer = tovmspath(SvPVX(tmpglob),vmsspec)) != NULL); |
1311 | else ok = ((wilddsc.dsc$a_pointer = tovmsspec(SvPVX(tmpglob),vmsspec)) != NULL); |
a0d0e21e |
1312 | if (ok) wilddsc.dsc$w_length = (unsigned short int) strlen(wilddsc.dsc$a_pointer); |
1313 | while (ok && ((sts = lib$find_file(&wilddsc,&rsdsc,&cxt, |
1314 | &dfltdsc,NULL,NULL,NULL))&1)) { |
1315 | end = rstr + (unsigned long int) *rslt; |
1316 | if (!hasver) while (*end != ';') end--; |
1317 | *(end++) = '\n'; *end = '\0'; |
1318 | for (cp = rstr; *cp; cp++) *cp = _tolower(*cp); |
1319 | if (hasdir) { |
f86702cc |
1320 | if (isunix) trim_unixpath(rstr,SvPVX(tmpglob),1); |
a0d0e21e |
1321 | begin = rstr; |
1322 | } |
1323 | else { |
1324 | begin = end; |
1325 | while (*(--begin) != ']' && *begin != '>') ; |
1326 | ++begin; |
1327 | } |
760ac839 |
1328 | ok = (PerlIO_puts(tmpfp,begin) != EOF); |
a0d0e21e |
1329 | } |
1330 | if (cxt) (void)lib$find_file_end(&cxt); |
748a9306 |
1331 | if (ok && sts != RMS$_NMF && |
1332 | sts != RMS$_DNF && sts != RMS$_FNF) ok = 0; |
a0d0e21e |
1333 | if (!ok) { |
c07a80fd |
1334 | if (!(sts & 1)) { |
1335 | SETERRNO((sts == RMS$_SYN ? EINVAL : EVMSERR),sts); |
1336 | } |
760ac839 |
1337 | PerlIO_close(tmpfp); |
a0d0e21e |
1338 | fp = NULL; |
1339 | } |
1340 | else { |
760ac839 |
1341 | PerlIO_rewind(tmpfp); |
22d4bb9c |
1342 | IoTYPE(io) = IoTYPE_RDONLY; |
a0d0e21e |
1343 | IoIFP(io) = fp = tmpfp; |
1e422769 |
1344 | IoFLAGS(io) &= ~IOf_UNTAINT; /* maybe redundant */ |
a0d0e21e |
1345 | } |
1346 | } |
1347 | } |
1348 | #else /* !VMS */ |
1d7c1841 |
1349 | #ifdef MACOS_TRADITIONAL |
1350 | sv_setpv(tmpcmd, "glob "); |
1351 | sv_catsv(tmpcmd, tmpglob); |
1352 | sv_catpv(tmpcmd, " |"); |
1353 | #else |
a0d0e21e |
1354 | #ifdef DOSISH |
67955e0c |
1355 | #ifdef OS2 |
1356 | sv_setpv(tmpcmd, "for a in "); |
1357 | sv_catsv(tmpcmd, tmpglob); |
1358 | sv_catpv(tmpcmd, "; do echo \"$a\\0\\c\"; done |"); |
1359 | #else |
39e571d4 |
1360 | #ifdef DJGPP |
1361 | sv_setpv(tmpcmd, "/dev/dosglob/"); /* File System Extension */ |
1362 | sv_catsv(tmpcmd, tmpglob); |
1363 | #else |
a0d0e21e |
1364 | sv_setpv(tmpcmd, "perlglob "); |
1365 | sv_catsv(tmpcmd, tmpglob); |
1366 | sv_catpv(tmpcmd, " |"); |
39e571d4 |
1367 | #endif /* !DJGPP */ |
67955e0c |
1368 | #endif /* !OS2 */ |
1369 | #else /* !DOSISH */ |
1370 | #if defined(CSH) |
3280af22 |
1371 | sv_setpvn(tmpcmd, PL_cshname, PL_cshlen); |
a0d0e21e |
1372 | sv_catpv(tmpcmd, " -cf 'set nonomatch; glob "); |
1373 | sv_catsv(tmpcmd, tmpglob); |
16d20bd9 |
1374 | sv_catpv(tmpcmd, "' 2>/dev/null |"); |
a0d0e21e |
1375 | #else |
1376 | sv_setpv(tmpcmd, "echo "); |
1377 | sv_catsv(tmpcmd, tmpglob); |
1378 | #if 'z' - 'a' == 25 |
1379 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\012\\012\\012\\012'|"); |
1380 | #else |
1381 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\n\\n\\n\\n'|"); |
1382 | #endif |
1383 | #endif /* !CSH */ |
67955e0c |
1384 | #endif /* !DOSISH */ |
1d7c1841 |
1385 | #endif /* MACOS_TRADITIONAL */ |
3280af22 |
1386 | (void)do_open(PL_last_in_gv, SvPVX(tmpcmd), SvCUR(tmpcmd), |
9d116dd7 |
1387 | FALSE, O_RDONLY, 0, Nullfp); |
a0d0e21e |
1388 | fp = IoIFP(io); |
1389 | #endif /* !VMS */ |
1390 | LEAVE; |
1391 | } |
1392 | } |
1393 | else if (type == OP_GLOB) |
1394 | SP--; |
af8c498a |
1395 | else if (ckWARN(WARN_IO) /* stdout/stderr or other write fh */ |
22d4bb9c |
1396 | && (IoTYPE(io) == IoTYPE_WRONLY || fp == PerlIO_stdout() |
af8c498a |
1397 | || fp == PerlIO_stderr())) |
1398 | { |
22d4bb9c |
1399 | /* integrate with report_evil_fh()? */ |
1400 | char *name = NULL; |
1401 | if (isGV(PL_last_in_gv)) { /* can this ever fail? */ |
1402 | SV* sv = sv_newmortal(); |
1403 | gv_efullname4(sv, PL_last_in_gv, Nullch, FALSE); |
1404 | name = SvPV_nolen(sv); |
1405 | } |
1406 | if (name && *name) |
1407 | Perl_warner(aTHX_ WARN_IO, |
1408 | "Filehandle %s opened only for output", name); |
1409 | else |
1410 | Perl_warner(aTHX_ WARN_IO, |
1411 | "Filehandle opened only for output"); |
af8c498a |
1412 | } |
a0d0e21e |
1413 | } |
1414 | if (!fp) { |
22d4bb9c |
1415 | if (ckWARN2(WARN_GLOB, WARN_CLOSED) |
1416 | && (!io || !(IoFLAGS(io) & IOf_START))) { |
3f4520fe |
1417 | if (type == OP_GLOB) |
e476b1b5 |
1418 | Perl_warner(aTHX_ WARN_GLOB, |
af8c498a |
1419 | "glob failed (can't start child: %s)", |
1420 | Strerror(errno)); |
69282e91 |
1421 | else |
22d4bb9c |
1422 | report_evil_fh(PL_last_in_gv, io, PL_op->op_type); |
3f4520fe |
1423 | } |
54310121 |
1424 | if (gimme == G_SCALAR) { |
a0d0e21e |
1425 | (void)SvOK_off(TARG); |
1426 | PUSHTARG; |
1427 | } |
1428 | RETURN; |
1429 | } |
a2008d6d |
1430 | have_fp: |
54310121 |
1431 | if (gimme == G_SCALAR) { |
a0d0e21e |
1432 | sv = TARG; |
9607fc9c |
1433 | if (SvROK(sv)) |
1434 | sv_unref(sv); |
a0d0e21e |
1435 | (void)SvUPGRADE(sv, SVt_PV); |
1436 | tmplen = SvLEN(sv); /* remember if already alloced */ |
1437 | if (!tmplen) |
1438 | Sv_Grow(sv, 80); /* try short-buffering it */ |
1439 | if (type == OP_RCATLINE) |
1440 | offset = SvCUR(sv); |
1441 | else |
1442 | offset = 0; |
1443 | } |
54310121 |
1444 | else { |
1445 | sv = sv_2mortal(NEWSV(57, 80)); |
1446 | offset = 0; |
1447 | } |
fbad3eb5 |
1448 | |
684bef36 |
1449 | /* delay EOF state for a snarfed empty file */ |
fbad3eb5 |
1450 | #define SNARF_EOF(gimme,rs,io,sv) \ |
684bef36 |
1451 | (gimme != G_SCALAR || SvCUR(sv) \ |
4b19af01 |
1452 | || (IoFLAGS(io) & IOf_NOLINE) || !RsSNARF(rs)) |
fbad3eb5 |
1453 | |
a0d0e21e |
1454 | for (;;) { |
fbad3eb5 |
1455 | if (!sv_gets(sv, fp, offset) |
1456 | && (type == OP_GLOB || SNARF_EOF(gimme, PL_rs, io, sv))) |
1457 | { |
760ac839 |
1458 | PerlIO_clearerr(fp); |
a0d0e21e |
1459 | if (IoFLAGS(io) & IOf_ARGV) { |
3280af22 |
1460 | fp = nextargv(PL_last_in_gv); |
a0d0e21e |
1461 | if (fp) |
1462 | continue; |
3280af22 |
1463 | (void)do_close(PL_last_in_gv, FALSE); |
a0d0e21e |
1464 | } |
1465 | else if (type == OP_GLOB) { |
e476b1b5 |
1466 | if (!do_close(PL_last_in_gv, FALSE) && ckWARN(WARN_GLOB)) { |
1467 | Perl_warner(aTHX_ WARN_GLOB, |
4eb79ab5 |
1468 | "glob failed (child exited with status %d%s)", |
894356b3 |
1469 | (int)(STATUS_CURRENT >> 8), |
cf494569 |
1470 | (STATUS_CURRENT & 0x80) ? ", core dumped" : ""); |
4eb79ab5 |
1471 | } |
a0d0e21e |
1472 | } |
54310121 |
1473 | if (gimme == G_SCALAR) { |
a0d0e21e |
1474 | (void)SvOK_off(TARG); |
1475 | PUSHTARG; |
1476 | } |
1477 | RETURN; |
1478 | } |
bbce6d69 |
1479 | /* This should not be marked tainted if the fp is marked clean */ |
1480 | if (!(IoFLAGS(io) & IOf_UNTAINT)) { |
1481 | TAINT; |
1482 | SvTAINTED_on(sv); |
1483 | } |
a0d0e21e |
1484 | IoLINES(io)++; |
4b19af01 |
1485 | IoFLAGS(io) |= IOf_NOLINE; |
71be2cbc |
1486 | SvSETMAGIC(sv); |
a0d0e21e |
1487 | XPUSHs(sv); |
a0d0e21e |
1488 | if (type == OP_GLOB) { |
1489 | char *tmps; |
1490 | |
3280af22 |
1491 | if (SvCUR(sv) > 0 && SvCUR(PL_rs) > 0) { |
c07a80fd |
1492 | tmps = SvEND(sv) - 1; |
3280af22 |
1493 | if (*tmps == *SvPVX(PL_rs)) { |
c07a80fd |
1494 | *tmps = '\0'; |
1495 | SvCUR(sv)--; |
1496 | } |
1497 | } |
a0d0e21e |
1498 | for (tmps = SvPVX(sv); *tmps; tmps++) |
1499 | if (!isALPHA(*tmps) && !isDIGIT(*tmps) && |
1500 | strchr("$&*(){}[]'\";\\|?<>~`", *tmps)) |
1501 | break; |
43384a1a |
1502 | if (*tmps && PerlLIO_lstat(SvPVX(sv), &PL_statbuf) < 0) { |
a0d0e21e |
1503 | (void)POPs; /* Unmatched wildcard? Chuck it... */ |
1504 | continue; |
1505 | } |
1506 | } |
54310121 |
1507 | if (gimme == G_ARRAY) { |
a0d0e21e |
1508 | if (SvLEN(sv) - SvCUR(sv) > 20) { |
1509 | SvLEN_set(sv, SvCUR(sv)+1); |
1510 | Renew(SvPVX(sv), SvLEN(sv), char); |
1511 | } |
1512 | sv = sv_2mortal(NEWSV(58, 80)); |
1513 | continue; |
1514 | } |
54310121 |
1515 | else if (gimme == G_SCALAR && !tmplen && SvLEN(sv) - SvCUR(sv) > 80) { |
a0d0e21e |
1516 | /* try to reclaim a bit of scalar space (only on 1st alloc) */ |
1517 | if (SvCUR(sv) < 60) |
1518 | SvLEN_set(sv, 80); |
1519 | else |
1520 | SvLEN_set(sv, SvCUR(sv)+40); /* allow some slop */ |
1521 | Renew(SvPVX(sv), SvLEN(sv), char); |
1522 | } |
1523 | RETURN; |
1524 | } |
1525 | } |
1526 | |
1527 | PP(pp_enter) |
1528 | { |
4e35701f |
1529 | djSP; |
c09156bb |
1530 | register PERL_CONTEXT *cx; |
533c011a |
1531 | I32 gimme = OP_GIMME(PL_op, -1); |
a0d0e21e |
1532 | |
54310121 |
1533 | if (gimme == -1) { |
1534 | if (cxstack_ix >= 0) |
1535 | gimme = cxstack[cxstack_ix].blk_gimme; |
1536 | else |
1537 | gimme = G_SCALAR; |
1538 | } |
a0d0e21e |
1539 | |
1540 | ENTER; |
1541 | |
1542 | SAVETMPS; |
924508f0 |
1543 | PUSHBLOCK(cx, CXt_BLOCK, SP); |
a0d0e21e |
1544 | |
1545 | RETURN; |
1546 | } |
1547 | |
1548 | PP(pp_helem) |
1549 | { |
4e35701f |
1550 | djSP; |
760ac839 |
1551 | HE* he; |
ae77835f |
1552 | SV **svp; |
a0d0e21e |
1553 | SV *keysv = POPs; |
a0d0e21e |
1554 | HV *hv = (HV*)POPs; |
533c011a |
1555 | U32 lval = PL_op->op_flags & OPf_MOD; |
1556 | U32 defer = PL_op->op_private & OPpLVAL_DEFER; |
be6c24e0 |
1557 | SV *sv; |
22d4bb9c |
1558 | U32 hash = (SvFAKE(keysv) && SvREADONLY(keysv)) ? SvUVX(keysv) : 0; |
a0d0e21e |
1559 | |
ae77835f |
1560 | if (SvTYPE(hv) == SVt_PVHV) { |
22d4bb9c |
1561 | he = hv_fetch_ent(hv, keysv, lval && !defer, hash); |
97fcbf96 |
1562 | svp = he ? &HeVAL(he) : 0; |
ae77835f |
1563 | } |
1564 | else if (SvTYPE(hv) == SVt_PVAV) { |
0ebe0038 |
1565 | if (PL_op->op_private & OPpLVAL_INTRO) |
cea2e8a9 |
1566 | DIE(aTHX_ "Can't localize pseudo-hash element"); |
22d4bb9c |
1567 | svp = avhv_fetch_ent((AV*)hv, keysv, lval && !defer, hash); |
ae77835f |
1568 | } |
c750a3ec |
1569 | else { |
a0d0e21e |
1570 | RETPUSHUNDEF; |
c750a3ec |
1571 | } |
a0d0e21e |
1572 | if (lval) { |
3280af22 |
1573 | if (!svp || *svp == &PL_sv_undef) { |
68dc0745 |
1574 | SV* lv; |
1575 | SV* key2; |
2d8e6c8d |
1576 | if (!defer) { |
1577 | STRLEN n_a; |
cea2e8a9 |
1578 | DIE(aTHX_ PL_no_helem, SvPV(keysv, n_a)); |
2d8e6c8d |
1579 | } |
68dc0745 |
1580 | lv = sv_newmortal(); |
1581 | sv_upgrade(lv, SVt_PVLV); |
1582 | LvTYPE(lv) = 'y'; |
1583 | sv_magic(lv, key2 = newSVsv(keysv), 'y', Nullch, 0); |
1584 | SvREFCNT_dec(key2); /* sv_magic() increments refcount */ |
1585 | LvTARG(lv) = SvREFCNT_inc(hv); |
1586 | LvTARGLEN(lv) = 1; |
1587 | PUSHs(lv); |
1588 | RETURN; |
1589 | } |
533c011a |
1590 | if (PL_op->op_private & OPpLVAL_INTRO) { |
ae77835f |
1591 | if (HvNAME(hv) && isGV(*svp)) |
533c011a |
1592 | save_gp((GV*)*svp, !(PL_op->op_flags & OPf_SPECIAL)); |
5f05dabc |
1593 | else |
161b7d16 |
1594 | save_helem(hv, keysv, svp); |
5f05dabc |
1595 | } |
533c011a |
1596 | else if (PL_op->op_private & OPpDEREF) |
1597 | vivify_ref(*svp, PL_op->op_private & OPpDEREF); |
a0d0e21e |
1598 | } |
3280af22 |
1599 | sv = (svp ? *svp : &PL_sv_undef); |
be6c24e0 |
1600 | /* This makes C<local $tied{foo} = $tied{foo}> possible. |
1601 | * Pushing the magical RHS on to the stack is useless, since |
1602 | * that magic is soon destined to be misled by the local(), |
1603 | * and thus the later pp_sassign() will fail to mg_get() the |
1604 | * old value. This should also cure problems with delayed |
1605 | * mg_get()s. GSAR 98-07-03 */ |
1606 | if (!lval && SvGMAGICAL(sv)) |
1607 | sv = sv_mortalcopy(sv); |
1608 | PUSHs(sv); |
a0d0e21e |
1609 | RETURN; |
1610 | } |
1611 | |
1612 | PP(pp_leave) |
1613 | { |
4e35701f |
1614 | djSP; |
c09156bb |
1615 | register PERL_CONTEXT *cx; |
a0d0e21e |
1616 | register SV **mark; |
1617 | SV **newsp; |
1618 | PMOP *newpm; |
1619 | I32 gimme; |
1620 | |
533c011a |
1621 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e |
1622 | cx = &cxstack[cxstack_ix]; |
3280af22 |
1623 | cx->blk_oldpm = PL_curpm; /* fake block should preserve $1 et al */ |
a0d0e21e |
1624 | } |
1625 | |
1626 | POPBLOCK(cx,newpm); |
1627 | |
533c011a |
1628 | gimme = OP_GIMME(PL_op, -1); |
54310121 |
1629 | if (gimme == -1) { |
1630 | if (cxstack_ix >= 0) |
1631 | gimme = cxstack[cxstack_ix].blk_gimme; |
1632 | else |
1633 | gimme = G_SCALAR; |
1634 | } |
a0d0e21e |
1635 | |
a1f49e72 |
1636 | TAINT_NOT; |
54310121 |
1637 | if (gimme == G_VOID) |
1638 | SP = newsp; |
1639 | else if (gimme == G_SCALAR) { |
1640 | MARK = newsp + 1; |
1641 | if (MARK <= SP) |
1642 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) |
1643 | *MARK = TOPs; |
1644 | else |
1645 | *MARK = sv_mortalcopy(TOPs); |
a0d0e21e |
1646 | else { |
54310121 |
1647 | MEXTEND(mark,0); |
3280af22 |
1648 | *MARK = &PL_sv_undef; |
a0d0e21e |
1649 | } |
54310121 |
1650 | SP = MARK; |
a0d0e21e |
1651 | } |
54310121 |
1652 | else if (gimme == G_ARRAY) { |
a1f49e72 |
1653 | /* in case LEAVE wipes old return values */ |
1654 | for (mark = newsp + 1; mark <= SP; mark++) { |
1655 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) { |
a0d0e21e |
1656 | *mark = sv_mortalcopy(*mark); |
a1f49e72 |
1657 | TAINT_NOT; /* Each item is independent */ |
1658 | } |
1659 | } |
a0d0e21e |
1660 | } |
3280af22 |
1661 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e |
1662 | |
1663 | LEAVE; |
1664 | |
1665 | RETURN; |
1666 | } |
1667 | |
1668 | PP(pp_iter) |
1669 | { |
4e35701f |
1670 | djSP; |
c09156bb |
1671 | register PERL_CONTEXT *cx; |
5f05dabc |
1672 | SV* sv; |
4633a7c4 |
1673 | AV* av; |
1d7c1841 |
1674 | SV **itersvp; |
a0d0e21e |
1675 | |
924508f0 |
1676 | EXTEND(SP, 1); |
a0d0e21e |
1677 | cx = &cxstack[cxstack_ix]; |
6b35e009 |
1678 | if (CxTYPE(cx) != CXt_LOOP) |
cea2e8a9 |
1679 | DIE(aTHX_ "panic: pp_iter"); |
a0d0e21e |
1680 | |
1d7c1841 |
1681 | itersvp = CxITERVAR(cx); |
4633a7c4 |
1682 | av = cx->blk_loop.iterary; |
89ea2908 |
1683 | if (SvTYPE(av) != SVt_PVAV) { |
1684 | /* iterate ($min .. $max) */ |
1685 | if (cx->blk_loop.iterlval) { |
1686 | /* string increment */ |
1687 | register SV* cur = cx->blk_loop.iterlval; |
1688 | STRLEN maxlen; |
1689 | char *max = SvPV((SV*)av, maxlen); |
1690 | if (!SvNIOK(cur) && SvCUR(cur) <= maxlen) { |
eaa5c2d6 |
1691 | #ifndef USE_THREADS /* don't risk potential race */ |
1d7c1841 |
1692 | if (SvREFCNT(*itersvp) == 1 && !SvMAGICAL(*itersvp)) { |
eaa5c2d6 |
1693 | /* safe to reuse old SV */ |
1d7c1841 |
1694 | sv_setsv(*itersvp, cur); |
eaa5c2d6 |
1695 | } |
22d4bb9c |
1696 | else |
eaa5c2d6 |
1697 | #endif |
1698 | { |
1699 | /* we need a fresh SV every time so that loop body sees a |
1700 | * completely new SV for closures/references to work as |
1701 | * they used to */ |
1d7c1841 |
1702 | SvREFCNT_dec(*itersvp); |
1703 | *itersvp = newSVsv(cur); |
eaa5c2d6 |
1704 | } |
89ea2908 |
1705 | if (strEQ(SvPVX(cur), max)) |
1706 | sv_setiv(cur, 0); /* terminate next time */ |
1707 | else |
1708 | sv_inc(cur); |
1709 | RETPUSHYES; |
1710 | } |
1711 | RETPUSHNO; |
1712 | } |
1713 | /* integer increment */ |
1714 | if (cx->blk_loop.iterix > cx->blk_loop.itermax) |
1715 | RETPUSHNO; |
7f61b687 |
1716 | |
eaa5c2d6 |
1717 | #ifndef USE_THREADS /* don't risk potential race */ |
1d7c1841 |
1718 | if (SvREFCNT(*itersvp) == 1 && !SvMAGICAL(*itersvp)) { |
eaa5c2d6 |
1719 | /* safe to reuse old SV */ |
1d7c1841 |
1720 | sv_setiv(*itersvp, cx->blk_loop.iterix++); |
eaa5c2d6 |
1721 | } |
22d4bb9c |
1722 | else |
eaa5c2d6 |
1723 | #endif |
1724 | { |
1725 | /* we need a fresh SV every time so that loop body sees a |
1726 | * completely new SV for closures/references to work as they |
1727 | * used to */ |
1d7c1841 |
1728 | SvREFCNT_dec(*itersvp); |
1729 | *itersvp = newSViv(cx->blk_loop.iterix++); |
eaa5c2d6 |
1730 | } |
89ea2908 |
1731 | RETPUSHYES; |
1732 | } |
1733 | |
1734 | /* iterate array */ |
3280af22 |
1735 | if (cx->blk_loop.iterix >= (av == PL_curstack ? cx->blk_oldsp : AvFILL(av))) |
4633a7c4 |
1736 | RETPUSHNO; |
a0d0e21e |
1737 | |
1d7c1841 |
1738 | SvREFCNT_dec(*itersvp); |
a0d0e21e |
1739 | |
155aba94 |
1740 | if ((sv = SvMAGICAL(av) |
22d4bb9c |
1741 | ? *av_fetch(av, ++cx->blk_loop.iterix, FALSE) |
155aba94 |
1742 | : AvARRAY(av)[++cx->blk_loop.iterix])) |
a0d0e21e |
1743 | SvTEMP_off(sv); |
a0d0e21e |
1744 | else |
3280af22 |
1745 | sv = &PL_sv_undef; |
1746 | if (av != PL_curstack && SvIMMORTAL(sv)) { |
5f05dabc |
1747 | SV *lv = cx->blk_loop.iterlval; |
71be2cbc |
1748 | if (lv && SvREFCNT(lv) > 1) { |
1749 | SvREFCNT_dec(lv); |
1750 | lv = Nullsv; |
1751 | } |
5f05dabc |
1752 | if (lv) |
1753 | SvREFCNT_dec(LvTARG(lv)); |
1754 | else { |
68dc0745 |
1755 | lv = cx->blk_loop.iterlval = NEWSV(26, 0); |
5f05dabc |
1756 | sv_upgrade(lv, SVt_PVLV); |
5f05dabc |
1757 | LvTYPE(lv) = 'y'; |
68dc0745 |
1758 | sv_magic(lv, Nullsv, 'y', Nullch, 0); |
5f05dabc |
1759 | } |
1760 | LvTARG(lv) = SvREFCNT_inc(av); |
1761 | LvTARGOFF(lv) = cx->blk_loop.iterix; |
42718184 |
1762 | LvTARGLEN(lv) = (STRLEN)UV_MAX; |
5f05dabc |
1763 | sv = (SV*)lv; |
1764 | } |
a0d0e21e |
1765 | |
1d7c1841 |
1766 | *itersvp = SvREFCNT_inc(sv); |
a0d0e21e |
1767 | RETPUSHYES; |
1768 | } |
1769 | |
1770 | PP(pp_subst) |
1771 | { |
4e35701f |
1772 | djSP; dTARG; |
a0d0e21e |
1773 | register PMOP *pm = cPMOP; |
1774 | PMOP *rpm = pm; |
1775 | register SV *dstr; |
1776 | register char *s; |
1777 | char *strend; |
1778 | register char *m; |
1779 | char *c; |
1780 | register char *d; |
1781 | STRLEN clen; |
1782 | I32 iters = 0; |
1783 | I32 maxiters; |
1784 | register I32 i; |
1785 | bool once; |
71be2cbc |
1786 | bool rxtainted; |
a0d0e21e |
1787 | char *orig; |
22e551b9 |
1788 | I32 r_flags; |
d9f97599 |
1789 | register REGEXP *rx = pm->op_pmregexp; |
a0d0e21e |
1790 | STRLEN len; |
1791 | int force_on_match = 0; |
3280af22 |
1792 | I32 oldsave = PL_savestack_ix; |
a0d0e21e |
1793 | |
5cd24f17 |
1794 | /* known replacement string? */ |
1795 | dstr = (pm->op_pmflags & PMf_CONST) ? POPs : Nullsv; |
533c011a |
1796 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e |
1797 | TARG = POPs; |
1798 | else { |
54b9620d |
1799 | TARG = DEFSV; |
a0d0e21e |
1800 | EXTEND(SP,1); |
22d4bb9c |
1801 | } |
1802 | if (SvFAKE(TARG) && SvREADONLY(TARG)) |
1803 | sv_force_normal(TARG); |
68dc0745 |
1804 | if (SvREADONLY(TARG) |
1805 | || (SvTYPE(TARG) > SVt_PVLV |
1806 | && !(SvTYPE(TARG) == SVt_PVGV && SvFAKE(TARG)))) |
d470f89e |
1807 | DIE(aTHX_ PL_no_modify); |
8ec5e241 |
1808 | PUTBACK; |
1809 | |
a0d0e21e |
1810 | s = SvPV(TARG, len); |
68dc0745 |
1811 | if (!SvPOKp(TARG) || SvTYPE(TARG) == SVt_PVGV) |
a0d0e21e |
1812 | force_on_match = 1; |
b3eb6a9b |
1813 | rxtainted = ((pm->op_pmdynflags & PMdf_TAINTED) || |
3280af22 |
1814 | (PL_tainted && (pm->op_pmflags & PMf_RETAINT))); |
1815 | if (PL_tainted) |
b3eb6a9b |
1816 | rxtainted |= 2; |
9212bbba |
1817 | TAINT_NOT; |
a0d0e21e |
1818 | |
1819 | force_it: |
1820 | if (!pm || !s) |
cea2e8a9 |
1821 | DIE(aTHX_ "panic: do_subst"); |
a0d0e21e |
1822 | |
1823 | strend = s + len; |
22d4bb9c |
1824 | maxiters = 2*(strend - s) + 10; /* We can match twice at each |
2beec16e |
1825 | position, once with zero-length, |
1826 | second time with non-zero. */ |
a0d0e21e |
1827 | |
3280af22 |
1828 | if (!rx->prelen && PL_curpm) { |
1829 | pm = PL_curpm; |
d9f97599 |
1830 | rx = pm->op_pmregexp; |
a0d0e21e |
1831 | } |
22e551b9 |
1832 | r_flags = (rx->nparens || SvTEMP(TARG) || PL_sawampersand) |
9d080a66 |
1833 | ? REXEC_COPY_STR : 0; |
f722798b |
1834 | if (SvSCREAM(TARG)) |
22e551b9 |
1835 | r_flags |= REXEC_SCREAM; |
a0d0e21e |
1836 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
3280af22 |
1837 | SAVEINT(PL_multiline); |
1838 | PL_multiline = pm->op_pmflags & PMf_MULTILINE; |
a0d0e21e |
1839 | } |
1840 | orig = m = s; |
f722798b |
1841 | if (rx->reganch & RE_USE_INTUIT) { |
1842 | s = CALLREG_INTUIT_START(aTHX_ rx, TARG, s, strend, r_flags, NULL); |
1843 | |
1844 | if (!s) |
1845 | goto nope; |
1846 | /* How to do it in subst? */ |
1847 | /* if ( (rx->reganch & ROPT_CHECK_ALL) |
22d4bb9c |
1848 | && !PL_sawampersand |
f722798b |
1849 | && ((rx->reganch & ROPT_NOSCAN) |
1850 | || !((rx->reganch & RE_INTUIT_TAIL) |
1851 | && (r_flags & REXEC_SCREAM)))) |
1852 | goto yup; |
1853 | */ |
a0d0e21e |
1854 | } |
71be2cbc |
1855 | |
1856 | /* only replace once? */ |
a0d0e21e |
1857 | once = !(rpm->op_pmflags & PMf_GLOBAL); |
71be2cbc |
1858 | |
1859 | /* known replacement string? */ |
5cd24f17 |
1860 | c = dstr ? SvPV(dstr, clen) : Nullch; |
71be2cbc |
1861 | |
1862 | /* can do inplace substitution? */ |
22e551b9 |
1863 | if (c && clen <= rx->minlen && (once || !(r_flags & REXEC_COPY_STR)) |
d9f97599 |
1864 | && !(rx->reganch & ROPT_LOOKBEHIND_SEEN)) { |
f722798b |
1865 | if (!CALLREGEXEC(aTHX_ rx, s, strend, orig, 0, TARG, NULL, |
1866 | r_flags | REXEC_CHECKED)) |
1867 | { |
8ec5e241 |
1868 | SPAGAIN; |
3280af22 |
1869 | PUSHs(&PL_sv_no); |
71be2cbc |
1870 | LEAVE_SCOPE(oldsave); |
1871 | RETURN; |
1872 | } |
1873 | if (force_on_match) { |
1874 | force_on_match = 0; |
1875 | s = SvPV_force(TARG, len); |
1876 | goto force_it; |
1877 | } |
71be2cbc |
1878 | d = s; |
3280af22 |
1879 | PL_curpm = pm; |
71be2cbc |
1880 | SvSCREAM_off(TARG); /* disable possible screamer */ |
1881 | if (once) { |
48c036b1 |
1882 | rxtainted |= RX_MATCH_TAINTED(rx); |
cf93c79d |
1883 | m = orig + rx->startp[0]; |
1884 | d = orig + rx->endp[0]; |
71be2cbc |
1885 | s = orig; |
1886 | if (m - s > strend - d) { /* faster to shorten from end */ |
1887 | if (clen) { |
1888 | Copy(c, m, clen, char); |
1889 | m += clen; |
a0d0e21e |
1890 | } |
71be2cbc |
1891 | i = strend - d; |
1892 | if (i > 0) { |
1893 | Move(d, m, i, char); |
1894 | m += i; |
a0d0e21e |
1895 | } |
71be2cbc |
1896 | *m = '\0'; |
1897 | SvCUR_set(TARG, m - s); |
1898 | } |
1899 | /*SUPPRESS 560*/ |
155aba94 |
1900 | else if ((i = m - s)) { /* faster from front */ |
71be2cbc |
1901 | d -= clen; |
1902 | m = d; |
1903 | sv_chop(TARG, d-i); |
1904 | s += i; |
1905 | while (i--) |
1906 | *--d = *--s; |
1907 | if (clen) |
1908 | Copy(c, m, clen, char); |
1909 | } |
1910 | else if (clen) { |
1911 | d -= clen; |
1912 | sv_chop(TARG, d); |
1913 | Copy(c, d, clen, char); |
1914 | } |
1915 | else { |
1916 | sv_chop(TARG, d); |
1917 | } |
48c036b1 |
1918 | TAINT_IF(rxtainted & 1); |
8ec5e241 |
1919 | SPAGAIN; |
3280af22 |
1920 | PUSHs(&PL_sv_yes); |
71be2cbc |
1921 | } |
1922 | else { |
71be2cbc |
1923 | do { |
1924 | if (iters++ > maxiters) |
cea2e8a9 |
1925 | DIE(aTHX_ "Substitution loop"); |
d9f97599 |
1926 | rxtainted |= RX_MATCH_TAINTED(rx); |
cf93c79d |
1927 | m = rx->startp[0] + orig; |
71be2cbc |
1928 | /*SUPPRESS 560*/ |
155aba94 |
1929 | if ((i = m - s)) { |
71be2cbc |
1930 | if (s != d) |
1931 | Move(s, d, i, char); |
1932 | d += i; |
a0d0e21e |
1933 | } |
71be2cbc |
1934 | if (clen) { |
1935 | Copy(c, d, clen, char); |
1936 | d += clen; |
1937 | } |
cf93c79d |
1938 | s = rx->endp[0] + orig; |
cea2e8a9 |
1939 | } while (CALLREGEXEC(aTHX_ rx, s, strend, orig, s == m, |
f722798b |
1940 | TARG, NULL, |
1941 | /* don't match same null twice */ |
1942 | REXEC_NOT_FIRST|REXEC_IGNOREPOS)); |
71be2cbc |
1943 | if (s != d) { |
1944 | i = strend - s; |
1945 | SvCUR_set(TARG, d - SvPVX(TARG) + i); |
1946 | Move(s, d, i+1, char); /* include the NUL */ |
a0d0e21e |
1947 | } |
48c036b1 |
1948 | TAINT_IF(rxtainted & 1); |
8ec5e241 |
1949 | SPAGAIN; |
71be2cbc |
1950 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
a0d0e21e |
1951 | } |
4b19af01 |
1952 | (void)SvPOK_only_UTF8(TARG); |
48c036b1 |
1953 | TAINT_IF(rxtainted); |
8ec5e241 |
1954 | if (SvSMAGICAL(TARG)) { |
1955 | PUTBACK; |
1956 | mg_set(TARG); |
1957 | SPAGAIN; |
1958 | } |
9212bbba |
1959 | SvTAINT(TARG); |
71be2cbc |
1960 | LEAVE_SCOPE(oldsave); |
1961 | RETURN; |
a0d0e21e |
1962 | } |
71be2cbc |
1963 | |
f722798b |
1964 | if (CALLREGEXEC(aTHX_ rx, s, strend, orig, 0, TARG, NULL, |
1965 | r_flags | REXEC_CHECKED)) |
1966 | { |
a0d0e21e |
1967 | if (force_on_match) { |
1968 | force_on_match = 0; |
1969 | s = SvPV_force(TARG, len); |
1970 | goto force_it; |
1971 | } |
48c036b1 |
1972 | rxtainted |= RX_MATCH_TAINTED(rx); |
8ec5e241 |
1973 | dstr = NEWSV(25, len); |
a0d0e21e |
1974 | sv_setpvn(dstr, m, s-m); |
3280af22 |
1975 | PL_curpm = pm; |
a0d0e21e |
1976 | if (!c) { |
c09156bb |
1977 | register PERL_CONTEXT *cx; |
8ec5e241 |
1978 | SPAGAIN; |
a0d0e21e |
1979 | PUSHSUBST(cx); |
1980 | RETURNOP(cPMOP->op_pmreplroot); |
1981 | } |
cf93c79d |
1982 | r_flags |= REXEC_IGNOREPOS | REXEC_NOT_FIRST; |
a0d0e21e |
1983 | do { |
1984 | if (iters++ > maxiters) |
cea2e8a9 |
1985 | DIE(aTHX_ "Substitution loop"); |
d9f97599 |
1986 | rxtainted |= RX_MATCH_TAINTED(rx); |
cf93c79d |
1987 | if (RX_MATCH_COPIED(rx) && rx->subbeg != orig) { |
a0d0e21e |
1988 | m = s; |
1989 | s = orig; |
cf93c79d |
1990 | orig = rx->subbeg; |
a0d0e21e |
1991 | s = orig + (m - s); |
1992 | strend = s + (strend - m); |
1993 | } |
cf93c79d |
1994 | m = rx->startp[0] + orig; |
a0d0e21e |
1995 | sv_catpvn(dstr, s, m-s); |
cf93c79d |
1996 | s = rx->endp[0] + orig; |
a0d0e21e |
1997 | if (clen) |
1998 | sv_catpvn(dstr, c, clen); |
1999 | if (once) |
2000 | break; |
cea2e8a9 |
2001 | } while (CALLREGEXEC(aTHX_ rx, s, strend, orig, s == m, TARG, NULL, r_flags)); |
a0d0e21e |
2002 | sv_catpvn(dstr, s, strend - s); |
748a9306 |
2003 | |
4633a7c4 |
2004 | (void)SvOOK_off(TARG); |
cb0b1708 |
2005 | Safefree(SvPVX(TARG)); |
748a9306 |
2006 | SvPVX(TARG) = SvPVX(dstr); |
2007 | SvCUR_set(TARG, SvCUR(dstr)); |
2008 | SvLEN_set(TARG, SvLEN(dstr)); |
2009 | SvPVX(dstr) = 0; |
2010 | sv_free(dstr); |
2011 | |
48c036b1 |
2012 | TAINT_IF(rxtainted & 1); |
f878fbec |
2013 | SPAGAIN; |
48c036b1 |
2014 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
2015 | |
a0d0e21e |
2016 | (void)SvPOK_only(TARG); |
48c036b1 |
2017 | TAINT_IF(rxtainted); |
a0d0e21e |
2018 | SvSETMAGIC(TARG); |
9212bbba |
2019 | SvTAINT(TARG); |
4633a7c4 |
2020 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
2021 | RETURN; |
2022 | } |
5cd24f17 |
2023 | goto ret_no; |
a0d0e21e |
2024 | |
2025 | nope: |
22d4bb9c |
2026 | ret_no: |
8ec5e241 |
2027 | SPAGAIN; |
3280af22 |
2028 | PUSHs(&PL_sv_no); |
4633a7c4 |
2029 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
2030 | RETURN; |
2031 | } |
2032 | |
2033 | PP(pp_grepwhile) |
2034 | { |
4e35701f |
2035 | djSP; |
a0d0e21e |
2036 | |
2037 | if (SvTRUEx(POPs)) |
3280af22 |
2038 | PL_stack_base[PL_markstack_ptr[-1]++] = PL_stack_base[*PL_markstack_ptr]; |
2039 | ++*PL_markstack_ptr; |
a0d0e21e |
2040 | LEAVE; /* exit inner scope */ |
2041 | |
2042 | /* All done yet? */ |
3280af22 |
2043 | if (PL_stack_base + *PL_markstack_ptr > SP) { |
a0d0e21e |
2044 | I32 items; |
54310121 |
2045 | I32 gimme = GIMME_V; |
a0d0e21e |
2046 | |
2047 | LEAVE; /* exit outer scope */ |
2048 | (void)POPMARK; /* pop src */ |
3280af22 |
2049 | items = --*PL_markstack_ptr - PL_markstack_ptr[-1]; |
a0d0e21e |
2050 | (void)POPMARK; /* pop dst */ |
3280af22 |
2051 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
54310121 |
2052 | if (gimme == G_SCALAR) { |
a0d0e21e |
2053 | dTARGET; |
2054 | XPUSHi(items); |
a0d0e21e |
2055 | } |
54310121 |
2056 | else if (gimme == G_ARRAY) |
2057 | SP += items; |
a0d0e21e |
2058 | RETURN; |
2059 | } |
2060 | else { |
2061 | SV *src; |
2062 | |
2063 | ENTER; /* enter inner scope */ |
1d7c1841 |
2064 | SAVEVPTR(PL_curpm); |
a0d0e21e |
2065 | |
3280af22 |
2066 | src = PL_stack_base[*PL_markstack_ptr]; |
a0d0e21e |
2067 | SvTEMP_off(src); |
54b9620d |
2068 | DEFSV = src; |
a0d0e21e |
2069 | |
2070 | RETURNOP(cLOGOP->op_other); |
2071 | } |
2072 | } |
2073 | |
2074 | PP(pp_leavesub) |
2075 | { |
4e35701f |
2076 | djSP; |
a0d0e21e |
2077 | SV **mark; |
2078 | SV **newsp; |
2079 | PMOP *newpm; |
2080 | I32 gimme; |
c09156bb |
2081 | register PERL_CONTEXT *cx; |
b0d9ce38 |
2082 | SV *sv; |
a0d0e21e |
2083 | |
2084 | POPBLOCK(cx,newpm); |
22d4bb9c |
2085 | |
a1f49e72 |
2086 | TAINT_NOT; |
a0d0e21e |
2087 | if (gimme == G_SCALAR) { |
2088 | MARK = newsp + 1; |
a29cdaf0 |
2089 | if (MARK <= SP) { |
a8bba7fa |
2090 | if (cx->blk_sub.cv && CvDEPTH(cx->blk_sub.cv) > 1) { |
a29cdaf0 |
2091 | if (SvTEMP(TOPs)) { |
2092 | *MARK = SvREFCNT_inc(TOPs); |
2093 | FREETMPS; |
2094 | sv_2mortal(*MARK); |
cd06dffe |
2095 | } |
2096 | else { |
ee8c7f54 |
2097 | sv = SvREFCNT_inc(TOPs); /* FREETMPS could clobber it */ |
a29cdaf0 |
2098 | FREETMPS; |
ee8c7f54 |
2099 | *MARK = sv_mortalcopy(sv); |
2100 | SvREFCNT_dec(sv); |
a29cdaf0 |
2101 | } |
cd06dffe |
2102 | } |
2103 | else |
a29cdaf0 |
2104 | *MARK = SvTEMP(TOPs) ? TOPs : sv_mortalcopy(TOPs); |
cd06dffe |
2105 | } |
2106 | else { |
f86702cc |
2107 | MEXTEND(MARK, 0); |
3280af22 |
2108 | *MARK = &PL_sv_undef; |
a0d0e21e |
2109 | } |
2110 | SP = MARK; |
2111 | } |
54310121 |
2112 | else if (gimme == G_ARRAY) { |
f86702cc |
2113 | for (MARK = newsp + 1; MARK <= SP; MARK++) { |
a1f49e72 |
2114 | if (!SvTEMP(*MARK)) { |
f86702cc |
2115 | *MARK = sv_mortalcopy(*MARK); |
a1f49e72 |
2116 | TAINT_NOT; /* Each item is independent */ |
2117 | } |
f86702cc |
2118 | } |
a0d0e21e |
2119 | } |
f86702cc |
2120 | PUTBACK; |
22d4bb9c |
2121 | |
b0d9ce38 |
2122 | POPSUB(cx,sv); /* Stack values are safe: release CV and @_ ... */ |
3280af22 |
2123 | PL_curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e |
2124 | |
2125 | LEAVE; |
b0d9ce38 |
2126 | LEAVESUB(sv); |
a0d0e21e |
2127 | return pop_return(); |
2128 | } |
2129 | |
cd06dffe |
2130 | /* This duplicates the above code because the above code must not |
2131 | * get any slower by more conditions */ |
2132 | PP(pp_leavesublv) |
2133 | { |
2134 | djSP; |
2135 | SV **mark; |
2136 | SV **newsp; |
2137 | PMOP *newpm; |
2138 | I32 gimme; |
2139 | register PERL_CONTEXT *cx; |
b0d9ce38 |
2140 | SV *sv; |
cd06dffe |
2141 | |
2142 | POPBLOCK(cx,newpm); |
22d4bb9c |
2143 | |
cd06dffe |
2144 | TAINT_NOT; |
2145 | |
2146 | if (cx->blk_sub.lval & OPpENTERSUB_INARGS) { |
2147 | /* We are an argument to a function or grep(). |
2148 | * This kind of lvalueness was legal before lvalue |
2149 | * subroutines too, so be backward compatible: |
2150 | * cannot report errors. */ |
2151 | |
2152 | /* Scalar context *is* possible, on the LHS of -> only, |
2153 | * as in f()->meth(). But this is not an lvalue. */ |
2154 | if (gimme == G_SCALAR) |
2155 | goto temporise; |
2156 | if (gimme == G_ARRAY) { |
a8bba7fa |
2157 | if (!CvLVALUE(cx->blk_sub.cv)) |
cd06dffe |
2158 | goto temporise_array; |
2159 | EXTEND_MORTAL(SP - newsp); |
2160 | for (mark = newsp + 1; mark <= SP; mark++) { |
2161 | if (SvTEMP(*mark)) |
2162 | /* empty */ ; |
2163 | else if (SvFLAGS(*mark) & (SVs_PADTMP | SVf_READONLY)) |
2164 | *mark = sv_mortalcopy(*mark); |
2165 | else { |
2166 | /* Can be a localized value subject to deletion. */ |
2167 | PL_tmps_stack[++PL_tmps_ix] = *mark; |
e1f15930 |
2168 | (void)SvREFCNT_inc(*mark); |
cd06dffe |
2169 | } |
2170 | } |
2171 | } |
2172 | } |
2173 | else if (cx->blk_sub.lval) { /* Leave it as it is if we can. */ |
2174 | /* Here we go for robustness, not for speed, so we change all |
2175 | * the refcounts so the caller gets a live guy. Cannot set |
2176 | * TEMP, so sv_2mortal is out of question. */ |
a8bba7fa |
2177 | if (!CvLVALUE(cx->blk_sub.cv)) { |
b0d9ce38 |
2178 | POPSUB(cx,sv); |
d470f89e |
2179 | PL_curpm = newpm; |
b0d9ce38 |
2180 | LEAVE; |
2181 | LEAVESUB(sv); |
d470f89e |
2182 | DIE(aTHX_ "Can't modify non-lvalue subroutine call"); |
2183 | } |
cd06dffe |
2184 | if (gimme == G_SCALAR) { |
2185 | MARK = newsp + 1; |
2186 | EXTEND_MORTAL(1); |
2187 | if (MARK == SP) { |
d470f89e |
2188 | if (SvFLAGS(TOPs) & (SVs_TEMP | SVs_PADTMP | SVf_READONLY)) { |
b0d9ce38 |
2189 | POPSUB(cx,sv); |
d470f89e |
2190 | PL_curpm = newpm; |
b0d9ce38 |
2191 | LEAVE; |
2192 | LEAVESUB(sv); |
d470f89e |
2193 | DIE(aTHX_ "Can't return a %s from lvalue subroutine", |
cd06dffe |
2194 | SvREADONLY(TOPs) ? "readonly value" : "temporary"); |
d470f89e |
2195 | } |
cd06dffe |
2196 | else { /* Can be a localized value |
2197 | * subject to deletion. */ |
2198 | PL_tmps_stack[++PL_tmps_ix] = *mark; |
e1f15930 |
2199 | (void)SvREFCNT_inc(*mark); |
cd06dffe |
2200 | } |
2201 | } |
d470f89e |
2202 | else { /* Should not happen? */ |
b0d9ce38 |
2203 | POPSUB(cx,sv); |
d470f89e |
2204 | PL_curpm = newpm; |
b0d9ce38 |
2205 | LEAVE; |
2206 | LEAVESUB(sv); |
d470f89e |
2207 | DIE(aTHX_ "%s returned from lvalue subroutine in scalar context", |
cd06dffe |
2208 | (MARK > SP ? "Empty array" : "Array")); |
d470f89e |
2209 | } |
cd06dffe |
2210 | SP = MARK; |
2211 | } |
2212 | else if (gimme == G_ARRAY) { |
2213 | EXTEND_MORTAL(SP - newsp); |
2214 | for (mark = newsp + 1; mark <= SP; mark++) { |
d470f89e |
2215 | if (SvFLAGS(*mark) & (SVs_TEMP | SVs_PADTMP | SVf_READONLY)) { |
2216 | /* Might be flattened array after $#array = */ |
2217 | PUTBACK; |
b0d9ce38 |
2218 | POPSUB(cx,sv); |
d470f89e |
2219 | PL_curpm = newpm; |
b0d9ce38 |
2220 | LEAVE; |
2221 | LEAVESUB(sv); |
d470f89e |
2222 | DIE(aTHX_ "Can't return %s from lvalue subroutine", |
cd06dffe |
2223 | (*mark != &PL_sv_undef) |
2224 | ? (SvREADONLY(TOPs) |
2225 | ? "a readonly value" : "a temporary") |
2226 | : "an uninitialized value"); |
d470f89e |
2227 | } |
cd06dffe |
2228 | else { |
cd06dffe |
2229 | /* Can be a localized value subject to deletion. */ |
2230 | PL_tmps_stack[++PL_tmps_ix] = *mark; |
e1f15930 |
2231 | (void)SvREFCNT_inc(*mark); |
cd06dffe |
2232 | } |
2233 | } |
2234 | } |
2235 | } |
2236 | else { |
2237 | if (gimme == G_SCALAR) { |
2238 | temporise: |
2239 | MARK = newsp + 1; |
2240 | if (MARK <= SP) { |
a8bba7fa |
2241 | if (cx->blk_sub.cv && CvDEPTH(cx->blk_sub.cv) > 1) { |
cd06dffe |
2242 | if (SvTEMP(TOPs)) { |
2243 | *MARK = SvREFCNT_inc(TOPs); |
2244 | FREETMPS; |
2245 | sv_2mortal(*MARK); |
2246 | } |
2247 | else { |
ee8c7f54 |
2248 | sv = SvREFCNT_inc(TOPs); /* FREETMPS could clobber it */ |
cd06dffe |
2249 | FREETMPS; |
ee8c7f54 |
2250 | *MARK = sv_mortalcopy(sv); |
2251 | SvREFCNT_dec(sv); |
cd06dffe |
2252 | } |
2253 | } |
2254 | else |
2255 | *MARK = SvTEMP(TOPs) ? TOPs : sv_mortalcopy(TOPs); |
2256 | } |
2257 | else { |
2258 | MEXTEND(MARK, 0); |
2259 | *MARK = &PL_sv_undef; |
2260 | } |
2261 | SP = MARK; |
2262 | } |
2263 | else if (gimme == G_ARRAY) { |
2264 | temporise_array: |
2265 | for (MARK = newsp + 1; MARK <= SP; MARK++) { |
2266 | if (!SvTEMP(*MARK)) { |
2267 | *MARK = sv_mortalcopy(*MARK); |
2268 | TAINT_NOT; /* Each item is independent */ |
2269 | } |
2270 | } |
2271 | } |
2272 | } |
2273 | PUTBACK; |
22d4bb9c |
2274 | |
b0d9ce38 |
2275 | POPSUB(cx,sv); /* Stack values are safe: release CV and @_ ... */ |
cd06dffe |
2276 | PL_curpm = newpm; /* ... and pop $1 et al */ |
2277 | |
2278 | LEAVE; |
b0d9ce38 |
2279 | LEAVESUB(sv); |
cd06dffe |
2280 | return pop_return(); |
2281 | } |
2282 | |
2283 | |
76e3520e |
2284 | STATIC CV * |
cea2e8a9 |
2285 | S_get_db_sub(pTHX_ SV **svp, CV *cv) |
3de9ffa1 |
2286 | { |
2287 | dTHR; |
3280af22 |
2288 | SV *dbsv = GvSV(PL_DBsub); |
491527d0 |
2289 | |
2290 | if (!PERLDB_SUB_NN) { |
2291 | GV *gv = CvGV(cv); |
2292 | |
2293 | save_item(dbsv); |
2294 | if ( (CvFLAGS(cv) & (CVf_ANON | CVf_CLONED)) |
22d4bb9c |
2295 | || strEQ(GvNAME(gv), "END") |
491527d0 |
2296 | || ((GvCV(gv) != cv) && /* Could be imported, and old sub redefined. */ |
2297 | !( (SvTYPE(*svp) == SVt_PVGV) && (GvCV((GV*)*svp) == cv) |
2298 | && (gv = (GV*)*svp) ))) { |
2299 | /* Use GV from the stack as a fallback. */ |
2300 | /* GV is potentially non-unique, or contain different CV. */ |
4b19af01 |
2301 | SV *tmp = newRV((SV*)cv); |
2302 | sv_setsv(dbsv, tmp); |
2303 | SvREFCNT_dec(tmp); |
491527d0 |
2304 | } |
2305 | else { |
2306 | gv_efullname3(dbsv, gv, Nullch); |
2307 | } |
3de9ffa1 |
2308 | } |
2309 | else { |
155aba94 |
2310 | (void)SvUPGRADE(dbsv, SVt_PVIV); |
2311 | (void)SvIOK_on(dbsv); |
491527d0 |
2312 | SAVEIV(SvIVX(dbsv)); |
5bc28da9 |
2313 | SvIVX(dbsv) = PTR2IV(cv); /* Do it the quickest way */ |
3de9ffa1 |
2314 | } |
491527d0 |
2315 | |
3de9ffa1 |
2316 | if (CvXSUB(cv)) |
3280af22 |
2317 | PL_curcopdb = PL_curcop; |
2318 | cv = GvCV(PL_DBsub); |
3de9ffa1 |
2319 | return cv; |
2320 | } |
2321 | |
a0d0e21e |
2322 | PP(pp_entersub) |
2323 | { |
4e35701f |
2324 | djSP; dPOPss; |
a0d0e21e |
2325 | GV *gv; |
2326 | HV *stash; |
2327 | register CV *cv; |
c09156bb |
2328 | register PERL_CONTEXT *cx; |
5d94fbed |
2329 | I32 gimme; |
533c011a |
2330 | bool hasargs = (PL_op->op_flags & OPf_STACKED) != 0; |
a0d0e21e |
2331 | |
2332 | if (!sv) |
cea2e8a9 |
2333 | DIE(aTHX_ "Not a CODE reference"); |
a0d0e21e |
2334 | switch (SvTYPE(sv)) { |
2335 | default: |
2336 | if (!SvROK(sv)) { |
748a9306 |
2337 | char *sym; |
2d8e6c8d |
2338 | STRLEN n_a; |
748a9306 |
2339 | |
3280af22 |
2340 | if (sv == &PL_sv_yes) { /* unfound import, ignore */ |
fb73857a |
2341 | if (hasargs) |
3280af22 |
2342 | SP = PL_stack_base + POPMARK; |
a0d0e21e |
2343 | RETURN; |
fb73857a |
2344 | } |
15ff848f |
2345 | if (SvGMAGICAL(sv)) { |
2346 | mg_get(sv); |
2347 | sym = SvPOKp(sv) ? SvPVX(sv) : Nullch; |
2348 | } |
2349 | else |
2d8e6c8d |
2350 | sym = SvPV(sv, n_a); |
15ff848f |
2351 | if (!sym) |
cea2e8a9 |
2352 | DIE(aTHX_ PL_no_usym, "a subroutine"); |
533c011a |
2353 | if (PL_op->op_private & HINT_STRICT_REFS) |
cea2e8a9 |
2354 | DIE(aTHX_ PL_no_symref, sym, "a subroutine"); |
864dbfa3 |
2355 | cv = get_cv(sym, TRUE); |
a0d0e21e |
2356 | break; |
2357 | } |
f5284f61 |
2358 | { |
2359 | SV **sp = &sv; /* Used in tryAMAGICunDEREF macro. */ |
2360 | tryAMAGICunDEREF(to_cv); |
2361 | } |
a0d0e21e |
2362 | cv = (CV*)SvRV(sv); |
2363 | if (SvTYPE(cv) == SVt_PVCV) |
2364 | break; |
2365 | /* FALL THROUGH */ |
2366 | case SVt_PVHV: |
2367 | case SVt_PVAV: |
cea2e8a9 |
2368 | DIE(aTHX_ "Not a CODE reference"); |
a0d0e21e |
2369 | case SVt_PVCV: |
2370 | cv = (CV*)sv; |
2371 | break; |
2372 | case SVt_PVGV: |
8ebc5c01 |
2373 | if (!(cv = GvCVu((GV*)sv))) |
f6ec51f7 |
2374 | cv = sv_2cv(sv, &stash, &gv, FALSE); |
2375 | if (!cv) { |
2376 | ENTER; |
2377 | SAVETMPS; |
2378 | goto try_autoload; |
2379 | } |
2380 | break; |
a0d0e21e |
2381 | } |
2382 | |
2383 | ENTER; |
2384 | SAVETMPS; |
2385 | |
2386 | retry: |
a0d0e21e |
2387 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
44a8e56a |
2388 | GV* autogv; |
22239a37 |
2389 | SV* sub_name; |
44a8e56a |
2390 | |
2391 | /* anonymous or undef'd function leaves us no recourse */ |
2392 | if (CvANON(cv) || !(gv = CvGV(cv))) |
cea2e8a9 |
2393 | DIE(aTHX_ "Undefined subroutine called"); |
67caa1fe |
2394 | |
44a8e56a |
2395 | /* autoloaded stub? */ |
2396 | if (cv != GvCV(gv)) { |
2397 | cv = GvCV(gv); |
a0d0e21e |
2398 | } |
44a8e56a |
2399 | /* should call AUTOLOAD now? */ |
67caa1fe |
2400 | else { |
f6ec51f7 |
2401 | try_autoload: |
2402 | if ((autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), |
2403 | FALSE))) |
2404 | { |
2405 | cv = GvCV(autogv); |
2406 | } |
2407 | /* sorry */ |
2408 | else { |
2409 | sub_name = sv_newmortal(); |
2410 | gv_efullname3(sub_name, gv, Nullch); |
cea2e8a9 |
2411 | DIE(aTHX_ "Undefined subroutine &%s called", SvPVX(sub_name)); |
f6ec51f7 |
2412 | } |
67caa1fe |
2413 | } |
2414 | if (!cv) |
cea2e8a9 |
2415 | DIE(aTHX_ "Not a CODE reference"); |
67caa1fe |
2416 | goto retry; |
a0d0e21e |
2417 | } |
2418 | |
54310121 |
2419 | gimme = GIMME_V; |
67caa1fe |
2420 | if ((PL_op->op_private & OPpENTERSUB_DB) && GvCV(PL_DBsub) && !CvNODEBUG(cv)) { |
4f01c5a5 |
2421 | cv = get_db_sub(&sv, cv); |
67caa1fe |
2422 | if (!cv) |
cea2e8a9 |
2423 | DIE(aTHX_ "No DBsub routine"); |
67caa1fe |
2424 | } |
a0d0e21e |
2425 | |
11343788 |
2426 | #ifdef USE_THREADS |
3de9ffa1 |
2427 | /* |
2428 | * First we need to check if the sub or method requires locking. |
458fb581 |
2429 | * If so, we gain a lock on the CV, the first argument or the |
2430 | * stash (for static methods), as appropriate. This has to be |
2431 | * inline because for FAKE_THREADS, COND_WAIT inlines code to |
2432 | * reschedule by returning a new op. |
3de9ffa1 |
2433 | */ |
11343788 |
2434 | MUTEX_LOCK(CvMUTEXP(cv)); |
77a005ab |
2435 | if (CvFLAGS(cv) & CVf_LOCKED) { |
2436 | MAGIC *mg; |
2437 | if (CvFLAGS(cv) & CVf_METHOD) { |
533c011a |
2438 | if (SP > PL_stack_base + TOPMARK) |
2439 | sv = *(PL_stack_base + TOPMARK + 1); |
77a005ab |
2440 | else { |
13e08037 |
2441 | AV *av = (AV*)PL_curpad[0]; |
2442 | if (hasargs || !av || AvFILLp(av) < 0 |
2443 | || !(sv = AvARRAY(av)[0])) |
2444 | { |
2445 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
d470f89e |
2446 | DIE(aTHX_ "no argument for locked method call"); |
13e08037 |
2447 | } |
77a005ab |
2448 | } |
2449 | if (SvROK(sv)) |
2450 | sv = SvRV(sv); |
458fb581 |
2451 | else { |
2452 | STRLEN len; |
2453 | char *stashname = SvPV(sv, len); |
2454 | sv = (SV*)gv_stashpvn(stashname, len, TRUE); |
2455 | } |
77a005ab |
2456 | } |
2457 | else { |
2458 | sv = (SV*)cv; |
2459 | } |
2460 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
2461 | mg = condpair_magic(sv); |
2462 | MUTEX_LOCK(MgMUTEXP(mg)); |
2463 | if (MgOWNER(mg) == thr) |
2464 | MUTEX_UNLOCK(MgMUTEXP(mg)); |
2465 | else { |
2466 | while (MgOWNER(mg)) |
2467 | COND_WAIT(MgOWNERCONDP(mg), MgMUTEXP(mg)); |
2468 | MgOWNER(mg) = thr; |
bf49b057 |
2469 | DEBUG_S(PerlIO_printf(Perl_debug_log, "%p: pp_entersub lock %p\n", |
1fd28e87 |
2470 | thr, sv);) |
77a005ab |
2471 | MUTEX_UNLOCK(MgMUTEXP(mg)); |
c76ac1ee |
2472 | SAVEDESTRUCTOR_X(Perl_unlock_condpair, sv); |
11343788 |
2473 | } |
77a005ab |
2474 | MUTEX_LOCK(CvMUTEXP(cv)); |
11343788 |
2475 | } |
3de9ffa1 |
2476 | /* |
2477 | * Now we have permission to enter the sub, we must distinguish |
2478 | * four cases. (0) It's an XSUB (in which case we don't care |
2479 | * about ownership); (1) it's ours already (and we're recursing); |
2480 | * (2) it's free (but we may already be using a cached clone); |
2481 | * (3) another thread owns it. Case (1) is easy: we just use it. |
2482 | * Case (2) means we look for a clone--if we have one, use it |
2483 | * otherwise grab ownership of cv. Case (3) means we look for a |
2484 | * clone (for non-XSUBs) and have to create one if we don't |
2485 | * already have one. |
2486 | * Why look for a clone in case (2) when we could just grab |
2487 | * ownership of cv straight away? Well, we could be recursing, |
2488 | * i.e. we originally tried to enter cv while another thread |
2489 | * owned it (hence we used a clone) but it has been freed up |
2490 | * and we're now recursing into it. It may or may not be "better" |
2491 | * to use the clone but at least CvDEPTH can be trusted. |
2492 | */ |
2493 | if (CvOWNER(cv) == thr || CvXSUB(cv)) |
2494 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
11343788 |
2495 | else { |
3de9ffa1 |
2496 | /* Case (2) or (3) */ |
2497 | SV **svp; |
2498 | |
11343788 |
2499 | /* |
3de9ffa1 |
2500 | * XXX Might it be better to release CvMUTEXP(cv) while we |
2501 | * do the hv_fetch? We might find someone has pinched it |
2502 | * when we look again, in which case we would be in case |
2503 | * (3) instead of (2) so we'd have to clone. Would the fact |
2504 | * that we released the mutex more quickly make up for this? |
2505 | */ |
b099ddc0 |
2506 | if ((svp = hv_fetch(thr->cvcache, (char *)cv, sizeof(cv), FALSE))) |
6ee623d5 |
2507 | { |
3de9ffa1 |
2508 | /* We already have a clone to use */ |
11343788 |
2509 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
3de9ffa1 |
2510 | cv = *(CV**)svp; |
bf49b057 |
2511 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
1fd28e87 |
2512 | "entersub: %p already has clone %p:%s\n", |
2513 | thr, cv, SvPEEK((SV*)cv))); |
3de9ffa1 |
2514 | CvOWNER(cv) = thr; |
2515 | SvREFCNT_inc(cv); |
2516 | if (CvDEPTH(cv) == 0) |
c76ac1ee |
2517 | SAVEDESTRUCTOR_X(unset_cvowner, (void*) cv); |
3de9ffa1 |
2518 | } |
11343788 |
2519 | else { |
3de9ffa1 |
2520 | /* (2) => grab ownership of cv. (3) => make clone */ |
2521 | if (!CvOWNER(cv)) { |
2522 | CvOWNER(cv) = thr; |
2523 | SvREFCNT_inc(cv); |
11343788 |
2524 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
bf49b057 |
2525 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
1fd28e87 |
2526 | "entersub: %p grabbing %p:%s in stash %s\n", |
2527 | thr, cv, SvPEEK((SV*)cv), CvSTASH(cv) ? |
3de9ffa1 |
2528 | HvNAME(CvSTASH(cv)) : "(none)")); |
cd06dffe |
2529 | } |
2530 | else { |
3de9ffa1 |
2531 | /* Make a new clone. */ |
2532 | CV *clonecv; |
2533 | SvREFCNT_inc(cv); /* don't let it vanish from under us */ |
2534 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
bf49b057 |
2535 | DEBUG_S((PerlIO_printf(Perl_debug_log, |
1fd28e87 |
2536 | "entersub: %p cloning %p:%s\n", |
2537 | thr, cv, SvPEEK((SV*)cv)))); |
3de9ffa1 |
2538 | /* |
2539 | * We're creating a new clone so there's no race |
2540 | * between the original MUTEX_UNLOCK and the |
2541 | * SvREFCNT_inc since no one will be trying to undef |
2542 | * it out from underneath us. At least, I don't think |
2543 | * there's a race... |
2544 | */ |
2545 | clonecv = cv_clone(cv); |
2546 | SvREFCNT_dec(cv); /* finished with this */ |
199100c8 |
2547 | hv_store(thr->cvcache, (char*)cv, sizeof(cv), (SV*)clonecv,0); |
3de9ffa1 |
2548 | CvOWNER(clonecv) = thr; |
2549 | cv = clonecv; |
11343788 |
2550 | SvREFCNT_inc(cv); |
11343788 |
2551 | } |
8b73bbec |
2552 | DEBUG_S(if (CvDEPTH(cv) != 0) |
bf49b057 |
2553 | PerlIO_printf(Perl_debug_log, "depth %ld != 0\n", |
3de9ffa1 |
2554 | CvDEPTH(cv));); |
c76ac1ee |
2555 | SAVEDESTRUCTOR_X(unset_cvowner, (void*) cv); |
11343788 |
2556 | } |
3de9ffa1 |
2557 | } |
11343788 |
2558 | #endif /* USE_THREADS */ |
2559 | |
a0d0e21e |
2560 | if (CvXSUB(cv)) { |
67caa1fe |
2561 | #ifdef PERL_XSUB_OLDSTYLE |
a0d0e21e |
2562 | if (CvOLDSTYLE(cv)) { |
20ce7b12 |
2563 | I32 (*fp3)(int,int,int); |
a0d0e21e |
2564 | dMARK; |
2565 | register I32 items = SP - MARK; |
67955e0c |
2566 | /* We dont worry to copy from @_. */ |
924508f0 |
2567 | while (SP > mark) { |
2568 | SP[1] = SP[0]; |
2569 | SP--; |
a0d0e21e |
2570 | } |
3280af22 |
2571 | PL_stack_sp = mark + 1; |
1d7c1841 |
2572 | fp3 = (I32(*)(int,int,int))CvXSUB(cv); |
22d4bb9c |
2573 | items = (*fp3)(CvXSUBANY(cv).any_i32, |
3280af22 |
2574 | MARK - PL_stack_base + 1, |
ecfc5424 |
2575 | items); |
3280af22 |
2576 | PL_stack_sp = PL_stack_base + items; |
a0d0e21e |
2577 | } |
67caa1fe |
2578 | else |
2579 | #endif /* PERL_XSUB_OLDSTYLE */ |
2580 | { |
748a9306 |
2581 | I32 markix = TOPMARK; |
2582 | |
a0d0e21e |
2583 | PUTBACK; |
67955e0c |
2584 | |
2585 | if (!hasargs) { |
2586 | /* Need to copy @_ to stack. Alternative may be to |
2587 | * switch stack to @_, and copy return values |
2588 | * back. This would allow popping @_ in XSUB, e.g.. XXXX */ |
6d4ff0d2 |
2589 | AV* av; |
2590 | I32 items; |
2591 | #ifdef USE_THREADS |
533c011a |
2592 | av = (AV*)PL_curpad[0]; |
6d4ff0d2 |
2593 | #else |
3280af22 |
2594 | av = GvAV(PL_defgv); |
6d4ff0d2 |
2595 | #endif /* USE_THREADS */ |
93965878 |
2596 | items = AvFILLp(av) + 1; /* @_ is not tieable */ |
67955e0c |
2597 | |
2598 | if (items) { |
2599 | /* Mark is at the end of the stack. */ |
924508f0 |
2600 | EXTEND(SP, items); |
2601 | Copy(AvARRAY(av), SP + 1, items, SV*); |
2602 | SP += items; |
22d4bb9c |
2603 | PUTBACK ; |
67955e0c |
2604 | } |
2605 | } |
67caa1fe |
2606 | /* We assume first XSUB in &DB::sub is the called one. */ |
2607 | if (PL_curcopdb) { |
1d7c1841 |
2608 | SAVEVPTR(PL_curcop); |
3280af22 |
2609 | PL_curcop = PL_curcopdb; |
2610 | PL_curcopdb = NULL; |
67955e0c |
2611 | } |
2612 | /* Do we need to open block here? XXXX */ |
0cb96387 |
2613 | (void)(*CvXSUB(cv))(aTHXo_ cv); |
748a9306 |
2614 | |
2615 | /* Enforce some sanity in scalar context. */ |
3280af22 |
2616 | if (gimme == G_SCALAR && ++markix != PL_stack_sp - PL_stack_base ) { |
2617 | if (markix > PL_stack_sp - PL_stack_base) |
2618 | *(PL_stack_base + markix) = &PL_sv_undef; |
748a9306 |
2619 | else |
3280af22 |
2620 | *(PL_stack_base + markix) = *PL_stack_sp; |
2621 | PL_stack_sp = PL_stack_base + markix; |
748a9306 |
2622 | } |
a0d0e21e |
2623 | } |
2624 | LEAVE; |
2625 | return NORMAL; |
2626 | } |
2627 | else { |
2628 | dMARK; |
2629 | register I32 items = SP - MARK; |
a0d0e21e |
2630 | AV* padlist = CvPADLIST(cv); |
2631 | SV** svp = AvARRAY(padlist); |
533c011a |
2632 | push_return(PL_op->op_next); |
a0d0e21e |
2633 | PUSHBLOCK(cx, CXt_SUB, MARK); |
2634 | PUSHSUB(cx); |
2635 | CvDEPTH(cv)++; |
6b35e009 |
2636 | /* XXX This would be a natural place to set C<PL_compcv = cv> so |
2637 | * that eval'' ops within this sub know the correct lexical space. |
2638 | * Owing the speed considerations, we choose to search for the cv |
2639 | * in doeval() instead. |
2640 | */ |
a0d0e21e |
2641 | if (CvDEPTH(cv) < 2) |
2642 | (void)SvREFCNT_inc(cv); |
2643 | else { /* save temporaries on recursion? */ |
1d7c1841 |
2644 | PERL_STACK_OVERFLOW_CHECK(); |
93965878 |
2645 | if (CvDEPTH(cv) > AvFILLp(padlist)) { |
a0d0e21e |
2646 | AV *av; |
2647 | AV *newpad = newAV(); |
4aa0a1f7 |
2648 | SV **oldpad = AvARRAY(svp[CvDEPTH(cv)-1]); |
93965878 |
2649 | I32 ix = AvFILLp((AV*)svp[1]); |
1d7c1841 |
2650 | I32 names_fill = AvFILLp((AV*)svp[0]); |
a0d0e21e |
2651 | svp = AvARRAY(svp[0]); |
748a9306 |
2652 | for ( ;ix > 0; ix--) { |
1d7c1841 |
2653 | if (names_fill >= ix && svp[ix] != &PL_sv_undef) { |
748a9306 |
2654 | char *name = SvPVX(svp[ix]); |
5f05dabc |
2655 | if ((SvFLAGS(svp[ix]) & SVf_FAKE) /* outer lexical? */ |
2656 | || *name == '&') /* anonymous code? */ |
2657 | { |
2658 | av_store(newpad, ix, SvREFCNT_inc(oldpad[ix])); |
748a9306 |
2659 | } |
2660 | else { /* our own lexical */ |
2661 | if (*name == '@') |
2662 | av_store(newpad, ix, sv = (SV*)newAV()); |
2663 | else if (*name == '%') |
2664 | av_store(newpad, ix, sv = (SV*)newHV()); |
2665 | else |
2666 | av_store(newpad, ix, sv = NEWSV(0,0)); |
2667 | SvPADMY_on(sv); |
2668 | } |
a0d0e21e |
2669 | } |
1d7c1841 |
2670 | else if (IS_PADGV(oldpad[ix]) || IS_PADCONST(oldpad[ix])) { |
2671 | av_store(newpad, ix, sv = SvREFCNT_inc(oldpad[ix])); |
2672 | } |
a0d0e21e |
2673 | else { |
748a9306 |
2674 | av_store(newpad, ix, sv = NEWSV(0,0)); |
a0d0e21e |
2675 | SvPADTMP_on(sv); |
2676 | } |
2677 | } |
2678 | av = newAV(); /* will be @_ */ |
2679 | av_extend(av, 0); |
2680 | av_store(newpad, 0, (SV*)av); |
2681 | AvFLAGS(av) = AVf_REIFY; |
2682 | av_store(padlist, CvDEPTH(cv), (SV*)newpad); |
93965878 |
2683 | AvFILLp(padlist) = CvDEPTH(cv); |
a0d0e21e |
2684 | svp = AvARRAY(padlist); |
2685 | } |
2686 | } |
6d4ff0d2 |
2687 | #ifdef USE_THREADS |
2688 | if (!hasargs) { |
533c011a |
2689 | AV* av = (AV*)PL_curpad[0]; |
6d4ff0d2 |
2690 | |
93965878 |
2691 | items = AvFILLp(av) + 1; |
6d4ff0d2 |
2692 | if (items) { |
2693 | /* Mark is at the end of the stack. */ |
924508f0 |
2694 | EXTEND(SP, items); |
2695 | Copy(AvARRAY(av), SP + 1, items, SV*); |
2696 | SP += items; |
22d4bb9c |
2697 | PUTBACK ; |
6d4ff0d2 |
2698 | } |
2699 | } |
2700 | #endif /* USE_THREADS */ |
1d7c1841 |
2701 | SAVEVPTR(PL_curpad); |
3280af22 |
2702 | PL_curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]); |
6d4ff0d2 |
2703 | #ifndef USE_THREADS |
2704 | if (hasargs) |
2705 | #endif /* USE_THREADS */ |
2706 | { |
2707 | AV* av; |
a0d0e21e |
2708 | SV** ary; |
2709 | |
77a005ab |
2710 | #if 0 |
bf49b057 |
2711 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
0f15f207 |
2712 | "%p entersub preparing @_\n", thr)); |
77a005ab |
2713 | #endif |
3280af22 |
2714 | av = (AV*)PL_curpad[0]; |
221373f0 |
2715 | if (AvREAL(av)) { |
2716 | /* @_ is normally not REAL--this should only ever |
2717 | * happen when DB::sub() calls things that modify @_ */ |
2718 | av_clear(av); |
2719 | AvREAL_off(av); |
2720 | AvREIFY_on(av); |
2721 | } |
6d4ff0d2 |
2722 | #ifndef USE_THREADS |
3280af22 |
2723 | cx->blk_sub.savearray = GvAV(PL_defgv); |
2724 | GvAV(PL_defgv) = (AV*)SvREFCNT_inc(av); |
6d4ff0d2 |
2725 | #endif /* USE_THREADS */ |
4b19af01 |
2726 | cx->blk_sub.oldcurpad = PL_curpad; |
6d4ff0d2 |
2727 | cx->blk_sub.argarray = av; |
a0d0e21e |
2728 | ++MARK; |
2729 | |
2730 | if (items > AvMAX(av) + 1) { |
2731 | ary = AvALLOC(av); |
2732 | if (AvARRAY(av) != ary) { |
2733 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); |
2734 | SvPVX(av) = (char*)ary; |
2735 | } |
2736 | if (items > AvMAX(av) + 1) { |
2737 | AvMAX(av) = items - 1; |
2738 | Renew(ary,items,SV*); |
2739 | AvALLOC(av) = ary; |
2740 | SvPVX(av) = (char*)ary; |
2741 | } |
2742 | } |
2743 | Copy(MARK,AvARRAY(av),items,SV*); |
93965878 |
2744 | AvFILLp(av) = items - 1; |
22d4bb9c |
2745 | |
a0d0e21e |
2746 | while (items--) { |
2747 | if (*MARK) |
2748 | SvTEMP_off(*MARK); |
2749 | MARK++; |
2750 | } |
2751 | } |
4a925ff6 |
2752 | /* warning must come *after* we fully set up the context |
2753 | * stuff so that __WARN__ handlers can safely dounwind() |
2754 | * if they want to |
2755 | */ |
2756 | if (CvDEPTH(cv) == 100 && ckWARN(WARN_RECURSION) |
2757 | && !(PERLDB_SUB && cv == GvCV(PL_DBsub))) |
2758 | sub_crush_depth(cv); |
77a005ab |
2759 | #if 0 |
bf49b057 |
2760 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
0f15f207 |
2761 | "%p entersub returning %p\n", thr, CvSTART(cv))); |
77a005ab |
2762 | #endif |
a0d0e21e |
2763 | RETURNOP(CvSTART(cv)); |
2764 | } |
2765 | } |
2766 | |
44a8e56a |
2767 | void |
864dbfa3 |
2768 | Perl_sub_crush_depth(pTHX_ CV *cv) |
44a8e56a |
2769 | { |
2770 | if (CvANON(cv)) |
cea2e8a9 |
2771 | Perl_warner(aTHX_ WARN_RECURSION, "Deep recursion on anonymous subroutine"); |
44a8e56a |
2772 | else { |
2773 | SV* tmpstr = sv_newmortal(); |
2774 | gv_efullname3(tmpstr, CvGV(cv), Nullch); |
22d4bb9c |
2775 | Perl_warner(aTHX_ WARN_RECURSION, "Deep recursion on subroutine \"%s\"", |
599cee73 |
2776 | SvPVX(tmpstr)); |
44a8e56a |
2777 | } |
2778 | } |
2779 | |
a0d0e21e |
2780 | PP(pp_aelem) |
2781 | { |
4e35701f |
2782 | djSP; |
a0d0e21e |
2783 | SV** svp; |
22d4bb9c |
2784 | IV elem = POPi; |
68dc0745 |
2785 | AV* av = (AV*)POPs; |
533c011a |
2786 | U32 lval = PL_op->op_flags & OPf_MOD; |
2787 | U32 defer = (PL_op->op_private & OPpLVAL_DEFER) && (elem > AvFILL(av)); |
be6c24e0 |
2788 | SV *sv; |
a0d0e21e |
2789 | |
748a9306 |
2790 | if (elem > 0) |
3280af22 |
2791 | elem -= PL_curcop->cop_arybase; |
a0d0e21e |
2792 | if (SvTYPE(av) != SVt_PVAV) |
2793 | RETPUSHUNDEF; |
68dc0745 |
2794 | svp = av_fetch(av, elem, lval && !defer); |
a0d0e21e |
2795 | if (lval) { |
3280af22 |
2796 | if (!svp || *svp == &PL_sv_undef) { |
68dc0745 |
2797 | SV* lv; |
2798 | if (!defer) |
cea2e8a9 |
2799 | DIE(aTHX_ PL_no_aelem, elem); |
68dc0745 |
2800 | lv = sv_newmortal(); |
2801 | sv_upgrade(lv, SVt_PVLV); |
2802 | LvTYPE(lv) = 'y'; |
2803 | sv_magic(lv, Nullsv, 'y', Nullch, 0); |
2804 | LvTARG(lv) = SvREFCNT_inc(av); |
2805 | LvTARGOFF(lv) = elem; |
2806 | LvTARGLEN(lv) = 1; |
2807 | PUSHs(lv); |
2808 | RETURN; |
2809 | } |
533c011a |
2810 | if (PL_op->op_private & OPpLVAL_INTRO) |
161b7d16 |
2811 | save_aelem(av, elem, svp); |
533c011a |
2812 | else if (PL_op->op_private & OPpDEREF) |
2813 | vivify_ref(*svp, PL_op->op_private & OPpDEREF); |
a0d0e21e |
2814 | } |
3280af22 |
2815 | sv = (svp ? *svp : &PL_sv_undef); |
be6c24e0 |
2816 | if (!lval && SvGMAGICAL(sv)) /* see note in pp_helem() */ |
2817 | sv = sv_mortalcopy(sv); |
2818 | PUSHs(sv); |
a0d0e21e |
2819 | RETURN; |
2820 | } |
2821 | |
02a9e968 |
2822 | void |
864dbfa3 |
2823 | Perl_vivify_ref(pTHX_ SV *sv, U32 to_what) |
02a9e968 |
2824 | { |
2825 | if (SvGMAGICAL(sv)) |
2826 | mg_get(sv); |
2827 | if (!SvOK(sv)) { |
2828 | if (SvREADONLY(sv)) |
cea2e8a9 |
2829 | Perl_croak(aTHX_ PL_no_modify); |
5f05dabc |
2830 | if (SvTYPE(sv) < SVt_RV) |
2831 | sv_upgrade(sv, SVt_RV); |
2832 | else if (SvTYPE(sv) >= SVt_PV) { |
2833 | (void)SvOOK_off(sv); |
2834 | Safefree(SvPVX(sv)); |
2835 | SvLEN(sv) = SvCUR(sv) = 0; |
2836 | } |
68dc0745 |
2837 | switch (to_what) { |
5f05dabc |
2838 | case OPpDEREF_SV: |
8c52afec |
2839 | SvRV(sv) = NEWSV(355,0); |
5f05dabc |
2840 | break; |
2841 | case OPpDEREF_AV: |
2842 | SvRV(sv) = (SV*)newAV(); |
2843 | break; |
2844 | case OPpDEREF_HV: |
2845 | SvRV(sv) = (SV*)newHV(); |
2846 | break; |
2847 | } |
02a9e968 |
2848 | SvROK_on(sv); |
2849 | SvSETMAGIC(sv); |
2850 | } |
2851 | } |
2852 | |
a0d0e21e |
2853 | PP(pp_method) |
2854 | { |
4e35701f |
2855 | djSP; |
f5d5a27c |
2856 | SV* sv = TOPs; |
2857 | |
2858 | if (SvROK(sv)) { |
eda383f2 |
2859 | SV* rsv = SvRV(sv); |
f5d5a27c |
2860 | if (SvTYPE(rsv) == SVt_PVCV) { |
2861 | SETs(rsv); |
2862 | RETURN; |
2863 | } |
2864 | } |
2865 | |
2866 | SETs(method_common(sv, Null(U32*))); |
2867 | RETURN; |
2868 | } |
2869 | |
2870 | PP(pp_method_named) |
2871 | { |
2872 | djSP; |
2873 | SV* sv = cSVOP->op_sv; |
2874 | U32 hash = SvUVX(sv); |
2875 | |
2876 | XPUSHs(method_common(sv, &hash)); |
2877 | RETURN; |
2878 | } |
2879 | |
2880 | STATIC SV * |
2881 | S_method_common(pTHX_ SV* meth, U32* hashp) |
2882 | { |
a0d0e21e |
2883 | SV* sv; |
2884 | SV* ob; |
2885 | GV* gv; |
56304f61 |
2886 | HV* stash; |
2887 | char* name; |
f5d5a27c |
2888 | STRLEN namelen; |
ac91690f |
2889 | char* packname; |
2890 | STRLEN packlen; |
a0d0e21e |
2891 | |
f5d5a27c |
2892 | name = SvPV(meth, namelen); |
3280af22 |
2893 | sv = *(PL_stack_base + TOPMARK + 1); |
f5d5a27c |
2894 | |
22d4bb9c |
2895 | if (!sv) |
2896 | Perl_croak(aTHX_ "Can't call method \"%s\" on an undefined value", name); |
2897 | |
16d20bd9 |
2898 | if (SvGMAGICAL(sv)) |
2899 | mg_get(sv); |
a0d0e21e |
2900 | if (SvROK(sv)) |
16d20bd9 |
2901 | ob = (SV*)SvRV(sv); |
a0d0e21e |
2902 | else { |
2903 | GV* iogv; |
a0d0e21e |
2904 | |
56304f61 |
2905 | packname = Nullch; |
a0d0e21e |
2906 | if (!SvOK(sv) || |
56304f61 |
2907 | !(packname = SvPV(sv, packlen)) || |
a0d0e21e |
2908 | !(iogv = gv_fetchpv(packname, FALSE, SVt_PVIO)) || |
2909 | !(ob=(SV*)GvIO(iogv))) |
2910 | { |
22d4bb9c |
2911 | if (!packname || |
7e2040f0 |
2912 | ((*(U8*)packname >= 0xc0 && DO_UTF8(sv)) |
b86a2fa7 |
2913 | ? !isIDFIRST_utf8((U8*)packname) |
834a4ddd |
2914 | : !isIDFIRST(*packname) |
2915 | )) |
2916 | { |
f5d5a27c |
2917 | Perl_croak(aTHX_ "Can't call method \"%s\" %s", name, |
2918 | SvOK(sv) ? "without a package or object reference" |
2919 | : "on an undefined value"); |
834a4ddd |
2920 | } |
56304f61 |
2921 | stash = gv_stashpvn(packname, packlen, TRUE); |
ac91690f |
2922 | goto fetch; |
a0d0e21e |
2923 | } |
3280af22 |
2924 | *(PL_stack_base + TOPMARK + 1) = sv_2mortal(newRV((SV*)iogv)); |
a0d0e21e |
2925 | } |
2926 | |
f0d43078 |
2927 | if (!ob || !(SvOBJECT(ob) |
2928 | || (SvTYPE(ob) == SVt_PVGV && (ob = (SV*)GvIO((GV*)ob)) |
2929 | && SvOBJECT(ob)))) |
2930 | { |
f5d5a27c |
2931 | Perl_croak(aTHX_ "Can't call method \"%s\" on unblessed reference", |
2932 | name); |
f0d43078 |
2933 | } |
a0d0e21e |
2934 | |
56304f61 |
2935 | stash = SvSTASH(ob); |
a0d0e21e |
2936 | |
ac91690f |
2937 | fetch: |
f5d5a27c |
2938 | /* shortcut for simple names */ |
2939 | if (hashp) { |
2940 | HE* he = hv_fetch_ent(stash, meth, 0, *hashp); |
2941 | if (he) { |
2942 | gv = (GV*)HeVAL(he); |
2943 | if (isGV(gv) && GvCV(gv) && |
2944 | (!GvCVGEN(gv) || GvCVGEN(gv) == PL_sub_generation)) |
2945 | return (SV*)GvCV(gv); |
2946 | } |
2947 | } |
2948 | |
ac91690f |
2949 | gv = gv_fetchmethod(stash, name); |
56304f61 |
2950 | if (!gv) { |
2951 | char* leaf = name; |
2952 | char* sep = Nullch; |
2953 | char* p; |
4b19af01 |
2954 | GV* gv; |
56304f61 |
2955 | |
2956 | for (p = name; *p; p++) { |
2957 | if (*p == '\'') |
2958 | sep = p, leaf = p + 1; |
2959 | else if (*p == ':' && *(p + 1) == ':') |
2960 | sep = p, leaf = p + 2; |
2961 | } |
2962 | if (!sep || ((sep - name) == 5 && strnEQ(name, "SUPER", 5))) { |
1d7c1841 |
2963 | packname = sep ? CopSTASHPV(PL_curcop) : HvNAME(stash); |
56304f61 |
2964 | packlen = strlen(packname); |
2965 | } |
2966 | else { |
2967 | packname = name; |
2968 | packlen = sep - name; |
2969 | } |
4b19af01 |
2970 | gv = gv_fetchpv(packname, 0, SVt_PVHV); |
2971 | if (gv && isGV(gv)) { |
2972 | Perl_croak(aTHX_ |
2973 | "Can't locate object method \"%s\" via package \"%s\"", |
2974 | leaf, packname); |
2975 | } |
2976 | else { |
2977 | Perl_croak(aTHX_ |
2978 | "Can't locate object method \"%s\" via package \"%s\"" |
2979 | " (perhaps you forgot to load \"%s\"?)", |
2980 | leaf, packname, packname); |
2981 | } |
56304f61 |
2982 | } |
f5d5a27c |
2983 | return isGV(gv) ? (SV*)GvCV(gv) : (SV*)gv; |
a0d0e21e |
2984 | } |
22239a37 |
2985 | |
51371543 |
2986 | #ifdef USE_THREADS |
2987 | static void |
2988 | unset_cvowner(pTHXo_ void *cvarg) |
2989 | { |
2990 | register CV* cv = (CV *) cvarg; |
2991 | #ifdef DEBUGGING |
2992 | dTHR; |
2993 | #endif /* DEBUGGING */ |
2994 | |
bf49b057 |
2995 | DEBUG_S((PerlIO_printf(Perl_debug_log, "%p unsetting CvOWNER of %p:%s\n", |
51371543 |
2996 | thr, cv, SvPEEK((SV*)cv)))); |
2997 | MUTEX_LOCK(CvMUTEXP(cv)); |
2998 | DEBUG_S(if (CvDEPTH(cv) != 0) |
bf49b057 |
2999 | PerlIO_printf(Perl_debug_log, "depth %ld != 0\n", |
51371543 |
3000 | CvDEPTH(cv));); |
3001 | assert(thr == CvOWNER(cv)); |
3002 | CvOWNER(cv) = 0; |
3003 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
3004 | SvREFCNT_dec(cv); |
3005 | } |
3006 | #endif /* USE_THREADS */ |