Commit | Line | Data |
---|---|---|
a0d0e21e LW |
1 | /* pp_hot.c |
2 | * | |
3818b22b | 3 | * Copyright (c) 1991-2000, Larry Wall |
a0d0e21e LW |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public | |
6 | * License or the Artistic License, as specified in the README file. | |
7 | * | |
8 | */ | |
9 | ||
10 | /* | |
11 | * Then he heard Merry change the note, and up went the Horn-cry of Buckland, | |
12 | * shaking the air. | |
13 | * | |
14 | * Awake! Awake! Fear, Fire, Foes! Awake! | |
15 | * Fire, Foes! Awake! | |
16 | */ | |
17 | ||
18 | #include "EXTERN.h" | |
864dbfa3 | 19 | #define PERL_IN_PP_HOT_C |
a0d0e21e LW |
20 | #include "perl.h" |
21 | ||
22 | /* Hot code. */ | |
23 | ||
11343788 | 24 | #ifdef USE_THREADS |
51371543 | 25 | static void unset_cvowner(pTHXo_ void *cvarg); |
11343788 MB |
26 | #endif /* USE_THREADS */ |
27 | ||
a0d0e21e LW |
28 | PP(pp_const) |
29 | { | |
4e35701f | 30 | djSP; |
1d7c1841 | 31 | XPUSHs(cSVOP_sv); |
a0d0e21e LW |
32 | RETURN; |
33 | } | |
34 | ||
35 | PP(pp_nextstate) | |
36 | { | |
533c011a | 37 | PL_curcop = (COP*)PL_op; |
a0d0e21e | 38 | TAINT_NOT; /* Each statement is presumed innocent */ |
3280af22 | 39 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e LW |
40 | FREETMPS; |
41 | return NORMAL; | |
42 | } | |
43 | ||
44 | PP(pp_gvsv) | |
45 | { | |
4e35701f | 46 | djSP; |
924508f0 | 47 | EXTEND(SP,1); |
533c011a | 48 | if (PL_op->op_private & OPpLVAL_INTRO) |
1d7c1841 | 49 | PUSHs(save_scalar(cGVOP_gv)); |
a0d0e21e | 50 | else |
1d7c1841 | 51 | PUSHs(GvSV(cGVOP_gv)); |
a0d0e21e LW |
52 | RETURN; |
53 | } | |
54 | ||
55 | PP(pp_null) | |
56 | { | |
57 | return NORMAL; | |
58 | } | |
59 | ||
7399586d HS |
60 | PP(pp_setstate) |
61 | { | |
62 | PL_curcop = (COP*)PL_op; | |
63 | return NORMAL; | |
64 | } | |
65 | ||
a0d0e21e LW |
66 | PP(pp_pushmark) |
67 | { | |
3280af22 | 68 | PUSHMARK(PL_stack_sp); |
a0d0e21e LW |
69 | return NORMAL; |
70 | } | |
71 | ||
72 | PP(pp_stringify) | |
73 | { | |
4e35701f | 74 | djSP; dTARGET; |
a0d0e21e LW |
75 | STRLEN len; |
76 | char *s; | |
77 | s = SvPV(TOPs,len); | |
78 | sv_setpvn(TARG,s,len); | |
234a4bc6 GS |
79 | if (SvUTF8(TOPs) && !IN_BYTE) |
80 | SvUTF8_on(TARG); | |
a0d0e21e LW |
81 | SETTARG; |
82 | RETURN; | |
83 | } | |
84 | ||
85 | PP(pp_gv) | |
86 | { | |
4e35701f | 87 | djSP; |
1d7c1841 | 88 | XPUSHs((SV*)cGVOP_gv); |
a0d0e21e LW |
89 | RETURN; |
90 | } | |
91 | ||
92 | PP(pp_and) | |
93 | { | |
4e35701f | 94 | djSP; |
a0d0e21e LW |
95 | if (!SvTRUE(TOPs)) |
96 | RETURN; | |
97 | else { | |
98 | --SP; | |
99 | RETURNOP(cLOGOP->op_other); | |
100 | } | |
101 | } | |
102 | ||
103 | PP(pp_sassign) | |
104 | { | |
4e35701f | 105 | djSP; dPOPTOPssrl; |
748a9306 | 106 | |
533c011a | 107 | if (PL_op->op_private & OPpASSIGN_BACKWARDS) { |
a0d0e21e LW |
108 | SV *temp; |
109 | temp = left; left = right; right = temp; | |
110 | } | |
3280af22 | 111 | if (PL_tainting && PL_tainted && !SvTAINTED(left)) |
a0d0e21e | 112 | TAINT_NOT; |
54310121 | 113 | SvSetMagicSV(right, left); |
a0d0e21e LW |
114 | SETs(right); |
115 | RETURN; | |
116 | } | |
117 | ||
118 | PP(pp_cond_expr) | |
119 | { | |
4e35701f | 120 | djSP; |
a0d0e21e | 121 | if (SvTRUEx(POPs)) |
1a67a97c | 122 | RETURNOP(cLOGOP->op_other); |
a0d0e21e | 123 | else |
1a67a97c | 124 | RETURNOP(cLOGOP->op_next); |
a0d0e21e LW |
125 | } |
126 | ||
127 | PP(pp_unstack) | |
128 | { | |
129 | I32 oldsave; | |
130 | TAINT_NOT; /* Each statement is presumed innocent */ | |
3280af22 | 131 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e | 132 | FREETMPS; |
3280af22 | 133 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e LW |
134 | LEAVE_SCOPE(oldsave); |
135 | return NORMAL; | |
136 | } | |
137 | ||
a0d0e21e LW |
138 | PP(pp_concat) |
139 | { | |
4e35701f | 140 | djSP; dATARGET; tryAMAGICbin(concat,opASSIGN); |
748a9306 LW |
141 | { |
142 | dPOPTOPssrl; | |
60aeb6fd NIS |
143 | STRLEN len, llen, rlen; |
144 | U8 *s, *l, *r; | |
ed646e6e SC |
145 | bool left_utf8; |
146 | bool right_utf8; | |
69b47968 | 147 | |
60aeb6fd NIS |
148 | r = (U8*)SvPV(right,rlen); |
149 | ||
150 | if (TARG != left) | |
151 | l = (U8*)SvPV(left,llen); | |
152 | else if (SvGMAGICAL(left)) | |
82f2f503 SC |
153 | mg_get(left); |
154 | ||
ed646e6e SC |
155 | left_utf8 = DO_UTF8(left); |
156 | right_utf8 = DO_UTF8(right); | |
7889fe52 | 157 | |
60aeb6fd | 158 | if (left_utf8 != right_utf8 && !IN_BYTE) { |
ed646e6e | 159 | if (TARG == right && !right_utf8) { |
37931a30 JH |
160 | sv_utf8_upgrade(TARG); /* Now straight binary copy */ |
161 | SvUTF8_on(TARG); | |
162 | } | |
163 | else { | |
164 | /* Set TARG to PV(left), then add right */ | |
60aeb6fd | 165 | U8 *c, *olds = NULL; |
37931a30 | 166 | STRLEN targlen; |
60aeb6fd | 167 | s = r; len = rlen; |
37931a30 | 168 | if (TARG == right) { |
15bb2692 | 169 | /* Take a copy since we're about to overwrite TARG */ |
b7018214 | 170 | olds = s = (U8*)savepvn((char*)s, len); |
37931a30 | 171 | } |
689440ec | 172 | if (!SvOK(left) && SvTYPE(left) <= SVt_PVMG) { |
905d5022 JH |
173 | if (SvREADONLY(left)) |
174 | left = sv_2mortal(newSVsv(left)); | |
689440ec JH |
175 | else |
176 | sv_setpv(left, ""); /* Suppress warning. */ | |
177 | } | |
37931a30 | 178 | if (TARG != left) |
60aeb6fd NIS |
179 | sv_setpvn(TARG, (char*)l, llen); |
180 | if (!left_utf8) { | |
181 | SvUTF8_off(TARG); | |
182 | sv_utf8_upgrade(TARG); | |
183 | } | |
37931a30 JH |
184 | /* Extend TARG to length of right (s) */ |
185 | targlen = SvCUR(TARG) + len; | |
ed646e6e | 186 | if (!right_utf8) { |
37931a30 | 187 | /* plus one for each hi-byte char if we have to upgrade */ |
15bb2692 | 188 | for (c = s; c < s + len; c++) { |
ed646e6e | 189 | if (UTF8_IS_CONTINUED(*c)) |
37931a30 JH |
190 | targlen++; |
191 | } | |
192 | } | |
193 | SvGROW(TARG, targlen+1); | |
194 | /* And now copy, maybe upgrading right to UTF8 on the fly */ | |
ed646e6e SC |
195 | if (right_utf8) |
196 | Copy(s, SvEND(TARG), len, U8); | |
197 | else { | |
198 | for (c = (U8*)SvEND(TARG); len--; s++) | |
199 | c = uv_to_utf8(c, *s); | |
200 | } | |
37931a30 JH |
201 | SvCUR_set(TARG, targlen); |
202 | *SvEND(TARG) = '\0'; | |
203 | SvUTF8_on(TARG); | |
204 | SETs(TARG); | |
205 | Safefree(olds); | |
206 | RETURN; | |
207 | } | |
208 | } | |
209 | ||
a0d0e21e | 210 | if (TARG != left) { |
69b47968 | 211 | if (TARG == right) { |
60aeb6fd | 212 | sv_insert(TARG, 0, 0, (char*)l, llen); |
69b47968 GS |
213 | SETs(TARG); |
214 | RETURN; | |
215 | } | |
60aeb6fd | 216 | sv_setpvn(TARG, (char *)l, llen); |
a0d0e21e | 217 | } |
37931a30 | 218 | else if (!SvOK(TARG) && SvTYPE(TARG) <= SVt_PVMG) |
748a9306 | 219 | sv_setpv(TARG, ""); /* Suppress warning. */ |
60aeb6fd | 220 | s = r; len = rlen; |
5bc28da9 NIS |
221 | if (SvOK(TARG)) { |
222 | #if defined(PERL_Y2KWARN) | |
e476b1b5 | 223 | if ((SvIOK(right) || SvNOK(right)) && ckWARN(WARN_Y2K)) { |
5bc28da9 NIS |
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 NIS |
230 | "about to append an integer to '19'"); |
231 | } | |
232 | } | |
233 | #endif | |
37931a30 | 234 | sv_catpvn(TARG, (char *)s, len); |
5bc28da9 | 235 | } |
68dc0745 | 236 | else |
37931a30 | 237 | sv_setpvn(TARG, (char *)s, len); /* suppress warning */ |
60aeb6fd | 238 | if (left_utf8 && !IN_BYTE) |
e84ff256 | 239 | SvUTF8_on(TARG); |
a0d0e21e LW |
240 | SETTARG; |
241 | RETURN; | |
748a9306 | 242 | } |
a0d0e21e LW |
243 | } |
244 | ||
245 | PP(pp_padsv) | |
246 | { | |
4e35701f | 247 | djSP; dTARGET; |
a0d0e21e | 248 | XPUSHs(TARG); |
533c011a NIS |
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 NIS |
255 | SPAGAIN; |
256 | } | |
4633a7c4 | 257 | } |
a0d0e21e LW |
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) { |
1c846c1f | 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 IZ |
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 IZ |
274 | } |
275 | } | |
a0d0e21e LW |
276 | return do_readline(); |
277 | } | |
278 | ||
279 | PP(pp_eq) | |
280 | { | |
1c846c1f | 281 | djSP; tryAMAGICbinSET(eq,0); |
28e5dec8 JH |
282 | #ifdef PERL_PRESERVE_IVUV |
283 | SvIV_please(TOPs); | |
284 | if (SvIOK(TOPs)) { | |
285 | /* Unless the left argument is integer in range we are going to have to | |
286 | use NV maths. Hence only attempt to coerce the right argument if | |
287 | we know the left is integer. */ | |
288 | SvIV_please(TOPm1s); | |
289 | if (SvIOK(TOPm1s)) { | |
290 | bool auvok = SvUOK(TOPm1s); | |
291 | bool buvok = SvUOK(TOPs); | |
292 | ||
293 | if (!auvok && !buvok) { /* ## IV == IV ## */ | |
294 | IV aiv = SvIVX(TOPm1s); | |
295 | IV biv = SvIVX(TOPs); | |
296 | ||
297 | SP--; | |
298 | SETs(boolSV(aiv == biv)); | |
299 | RETURN; | |
300 | } | |
301 | if (auvok && buvok) { /* ## UV == UV ## */ | |
302 | UV auv = SvUVX(TOPm1s); | |
303 | UV buv = SvUVX(TOPs); | |
304 | ||
305 | SP--; | |
306 | SETs(boolSV(auv == buv)); | |
307 | RETURN; | |
308 | } | |
309 | { /* ## Mixed IV,UV ## */ | |
310 | IV iv; | |
311 | UV uv; | |
312 | ||
313 | /* == is commutative so swap if needed (save code) */ | |
314 | if (auvok) { | |
315 | /* swap. top of stack (b) is the iv */ | |
316 | iv = SvIVX(TOPs); | |
317 | SP--; | |
318 | if (iv < 0) { | |
319 | /* As (a) is a UV, it's >0, so it cannot be == */ | |
320 | SETs(&PL_sv_no); | |
321 | RETURN; | |
322 | } | |
323 | uv = SvUVX(TOPs); | |
324 | } else { | |
325 | iv = SvIVX(TOPm1s); | |
326 | SP--; | |
327 | if (iv < 0) { | |
328 | /* As (b) is a UV, it's >0, so it cannot be == */ | |
329 | SETs(&PL_sv_no); | |
330 | RETURN; | |
331 | } | |
332 | uv = SvUVX(*(SP+1)); /* Do I want TOPp1s() ? */ | |
333 | } | |
334 | /* we know iv is >= 0 */ | |
335 | if (uv > (UV) IV_MAX) { | |
336 | SETs(&PL_sv_no); | |
337 | RETURN; | |
338 | } | |
339 | SETs(boolSV((UV)iv == uv)); | |
340 | RETURN; | |
341 | } | |
342 | } | |
343 | } | |
344 | #endif | |
a0d0e21e LW |
345 | { |
346 | dPOPnv; | |
54310121 | 347 | SETs(boolSV(TOPn == value)); |
a0d0e21e LW |
348 | RETURN; |
349 | } | |
350 | } | |
351 | ||
352 | PP(pp_preinc) | |
353 | { | |
4e35701f | 354 | djSP; |
68dc0745 | 355 | if (SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV) |
d470f89e | 356 | DIE(aTHX_ PL_no_modify); |
25da4f38 | 357 | if (SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) && |
55497cff | 358 | SvIVX(TOPs) != IV_MAX) |
359 | { | |
748a9306 | 360 | ++SvIVX(TOPs); |
55497cff | 361 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
748a9306 | 362 | } |
28e5dec8 | 363 | else /* Do all the PERL_PRESERVE_IVUV conditionals in sv_inc */ |
748a9306 | 364 | sv_inc(TOPs); |
a0d0e21e LW |
365 | SvSETMAGIC(TOPs); |
366 | return NORMAL; | |
367 | } | |
368 | ||
369 | PP(pp_or) | |
370 | { | |
4e35701f | 371 | djSP; |
a0d0e21e LW |
372 | if (SvTRUE(TOPs)) |
373 | RETURN; | |
374 | else { | |
375 | --SP; | |
376 | RETURNOP(cLOGOP->op_other); | |
377 | } | |
378 | } | |
379 | ||
380 | PP(pp_add) | |
381 | { | |
28e5dec8 JH |
382 | djSP; dATARGET; bool useleft; tryAMAGICbin(add,opASSIGN); |
383 | useleft = USE_LEFT(TOPm1s); | |
384 | #ifdef PERL_PRESERVE_IVUV | |
385 | /* We must see if we can perform the addition with integers if possible, | |
386 | as the integer code detects overflow while the NV code doesn't. | |
387 | If either argument hasn't had a numeric conversion yet attempt to get | |
388 | the IV. It's important to do this now, rather than just assuming that | |
389 | it's not IOK as a PV of "9223372036854775806" may not take well to NV | |
390 | addition, and an SV which is NOK, NV=6.0 ought to be coerced to | |
391 | integer in case the second argument is IV=9223372036854775806 | |
392 | We can (now) rely on sv_2iv to do the right thing, only setting the | |
393 | public IOK flag if the value in the NV (or PV) slot is truly integer. | |
394 | ||
395 | A side effect is that this also aggressively prefers integer maths over | |
396 | fp maths for integer values. */ | |
397 | SvIV_please(TOPs); | |
398 | if (SvIOK(TOPs)) { | |
399 | /* Unless the left argument is integer in range we are going to have to | |
400 | use NV maths. Hence only attempt to coerce the right argument if | |
401 | we know the left is integer. */ | |
402 | if (!useleft) { | |
403 | /* left operand is undef, treat as zero. + 0 is identity. */ | |
404 | if (SvUOK(TOPs)) { | |
405 | dPOPuv; /* Scary macros. Lets put a sequence point (;) here */ | |
406 | SETu(value); | |
407 | RETURN; | |
408 | } else { | |
409 | dPOPiv; | |
410 | SETi(value); | |
411 | RETURN; | |
412 | } | |
413 | } | |
414 | /* Left operand is defined, so is it IV? */ | |
415 | SvIV_please(TOPm1s); | |
416 | if (SvIOK(TOPm1s)) { | |
417 | bool auvok = SvUOK(TOPm1s); | |
418 | bool buvok = SvUOK(TOPs); | |
419 | ||
420 | if (!auvok && !buvok) { /* ## IV + IV ## */ | |
421 | IV aiv = SvIVX(TOPm1s); | |
422 | IV biv = SvIVX(TOPs); | |
423 | IV result = aiv + biv; | |
424 | ||
425 | if (biv >= 0 ? (result >= aiv) : (result < aiv)) { | |
426 | SP--; | |
427 | SETi( result ); | |
428 | RETURN; | |
429 | } | |
430 | if (biv >=0 && aiv >= 0) { | |
431 | UV result = (UV)aiv + (UV)biv; | |
432 | /* UV + UV can only get bigger... */ | |
433 | if (result >= (UV) aiv) { | |
434 | SP--; | |
435 | SETu( result ); | |
436 | RETURN; | |
437 | } | |
438 | } | |
439 | /* Overflow, drop through to NVs (beyond next if () else ) */ | |
440 | } else if (auvok && buvok) { /* ## UV + UV ## */ | |
441 | UV auv = SvUVX(TOPm1s); | |
442 | UV buv = SvUVX(TOPs); | |
443 | UV result = auv + buv; | |
444 | if (result >= auv) { | |
445 | SP--; | |
446 | SETu( result ); | |
447 | RETURN; | |
448 | } | |
449 | /* Overflow, drop through to NVs (beyond next if () else ) */ | |
450 | } else { /* ## Mixed IV,UV ## */ | |
451 | IV aiv; | |
452 | UV buv; | |
453 | ||
454 | /* addition is commutative so swap if needed (save code) */ | |
455 | if (buvok) { | |
456 | aiv = SvIVX(TOPm1s); | |
457 | buv = SvUVX(TOPs); | |
458 | } else { | |
459 | aiv = SvIVX(TOPs); | |
460 | buv = SvUVX(TOPm1s); | |
461 | } | |
462 | ||
463 | if (aiv >= 0) { | |
464 | UV result = (UV)aiv + buv; | |
465 | if (result >= buv) { | |
466 | SP--; | |
467 | SETu( result ); | |
468 | RETURN; | |
469 | } | |
470 | } else if (buv > (UV) IV_MAX) { | |
471 | /* assuming 2s complement means that IV_MIN == -IV_MIN, | |
472 | and (UV)-IV_MIN *is* the value -IV_MIN (or IV_MAX + 1) | |
473 | as buv > IV_MAX, it is >= (IV_MAX + 1), and therefore | |
474 | as the value we can be subtracting from it only lies in | |
475 | the range (-IV_MIN to -1) it can't overflow a UV */ | |
476 | SP--; | |
477 | SETu( buv - (UV)-aiv ); | |
478 | RETURN; | |
479 | } else { | |
480 | IV result = (IV) buv + aiv; | |
481 | /* aiv < 0 so it must get smaller. */ | |
482 | if (result < (IV) buv) { | |
483 | SP--; | |
484 | SETi( result ); | |
485 | RETURN; | |
486 | } | |
487 | } | |
488 | } /* end of IV+IV / UV+UV / mixed */ | |
489 | } | |
490 | } | |
491 | #endif | |
a0d0e21e | 492 | { |
28e5dec8 JH |
493 | dPOPnv; |
494 | if (!useleft) { | |
495 | /* left operand is undef, treat as zero. + 0.0 is identity. */ | |
496 | SETn(value); | |
497 | RETURN; | |
498 | } | |
499 | SETn( value + TOPn ); | |
500 | RETURN; | |
a0d0e21e LW |
501 | } |
502 | } | |
503 | ||
504 | PP(pp_aelemfast) | |
505 | { | |
4e35701f | 506 | djSP; |
1d7c1841 | 507 | AV *av = GvAV(cGVOP_gv); |
533c011a NIS |
508 | U32 lval = PL_op->op_flags & OPf_MOD; |
509 | SV** svp = av_fetch(av, PL_op->op_private, lval); | |
3280af22 | 510 | SV *sv = (svp ? *svp : &PL_sv_undef); |
6ff81951 | 511 | EXTEND(SP, 1); |
be6c24e0 GS |
512 | if (!lval && SvGMAGICAL(sv)) /* see note in pp_helem() */ |
513 | sv = sv_mortalcopy(sv); | |
514 | PUSHs(sv); | |
a0d0e21e LW |
515 | RETURN; |
516 | } | |
517 | ||
518 | PP(pp_join) | |
519 | { | |
4e35701f | 520 | djSP; dMARK; dTARGET; |
a0d0e21e LW |
521 | MARK++; |
522 | do_join(TARG, *MARK, MARK, SP); | |
523 | SP = MARK; | |
524 | SETs(TARG); | |
525 | RETURN; | |
526 | } | |
527 | ||
528 | PP(pp_pushre) | |
529 | { | |
4e35701f | 530 | djSP; |
44a8e56a | 531 | #ifdef DEBUGGING |
532 | /* | |
533 | * We ass_u_me that LvTARGOFF() comes first, and that two STRLENs | |
534 | * will be enough to hold an OP*. | |
535 | */ | |
536 | SV* sv = sv_newmortal(); | |
537 | sv_upgrade(sv, SVt_PVLV); | |
538 | LvTYPE(sv) = '/'; | |
533c011a | 539 | Copy(&PL_op, &LvTARGOFF(sv), 1, OP*); |
44a8e56a | 540 | XPUSHs(sv); |
541 | #else | |
6b88bc9c | 542 | XPUSHs((SV*)PL_op); |
44a8e56a | 543 | #endif |
a0d0e21e LW |
544 | RETURN; |
545 | } | |
546 | ||
547 | /* Oversized hot code. */ | |
548 | ||
549 | PP(pp_print) | |
550 | { | |
4e35701f | 551 | djSP; dMARK; dORIGMARK; |
a0d0e21e LW |
552 | GV *gv; |
553 | IO *io; | |
760ac839 | 554 | register PerlIO *fp; |
236988e4 | 555 | MAGIC *mg; |
2d8e6c8d | 556 | STRLEN n_a; |
a0d0e21e | 557 | |
533c011a | 558 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e LW |
559 | gv = (GV*)*++MARK; |
560 | else | |
3280af22 | 561 | gv = PL_defoutgv; |
155aba94 | 562 | if ((mg = SvTIED_mg((SV*)gv, 'q'))) { |
01bb7c6d | 563 | had_magic: |
68dc0745 | 564 | if (MARK == ORIGMARK) { |
1c846c1f | 565 | /* If using default handle then we need to make space to |
a60c0954 NIS |
566 | * pass object as 1st arg, so move other args up ... |
567 | */ | |
4352c267 | 568 | MEXTEND(SP, 1); |
68dc0745 | 569 | ++MARK; |
570 | Move(MARK, MARK + 1, (SP - MARK) + 1, SV*); | |
571 | ++SP; | |
572 | } | |
573 | PUSHMARK(MARK - 1); | |
33c27489 | 574 | *MARK = SvTIED_obj((SV*)gv, mg); |
68dc0745 | 575 | PUTBACK; |
236988e4 | 576 | ENTER; |
864dbfa3 | 577 | call_method("PRINT", G_SCALAR); |
236988e4 | 578 | LEAVE; |
579 | SPAGAIN; | |
68dc0745 | 580 | MARK = ORIGMARK + 1; |
581 | *MARK = *SP; | |
582 | SP = MARK; | |
236988e4 | 583 | RETURN; |
584 | } | |
a0d0e21e | 585 | if (!(io = GvIO(gv))) { |
01bb7c6d DC |
586 | if ((GvEGV(gv)) && (mg = SvTIED_mg((SV*)GvEGV(gv),'q'))) |
587 | goto had_magic; | |
2dd78f96 JH |
588 | if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) |
589 | report_evil_fh(gv, io, PL_op->op_type); | |
748a9306 | 590 | SETERRNO(EBADF,RMS$_IFI); |
a0d0e21e LW |
591 | goto just_say_no; |
592 | } | |
593 | else if (!(fp = IoOFP(io))) { | |
599cee73 | 594 | if (ckWARN2(WARN_CLOSED, WARN_IO)) { |
4c80c0b2 NC |
595 | if (IoIFP(io)) |
596 | report_evil_fh(gv, io, OP_phoney_INPUT_ONLY); | |
2dd78f96 | 597 | else if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) |
bc37a18f | 598 | report_evil_fh(gv, io, PL_op->op_type); |
a0d0e21e | 599 | } |
748a9306 | 600 | SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI); |
a0d0e21e LW |
601 | goto just_say_no; |
602 | } | |
603 | else { | |
604 | MARK++; | |
7889fe52 | 605 | if (PL_ofs_sv && SvOK(PL_ofs_sv)) { |
a0d0e21e LW |
606 | while (MARK <= SP) { |
607 | if (!do_print(*MARK, fp)) | |
608 | break; | |
609 | MARK++; | |
610 | if (MARK <= SP) { | |
7889fe52 | 611 | if (!do_print(PL_ofs_sv, fp)) { /* $, */ |
a0d0e21e LW |
612 | MARK--; |
613 | break; | |
614 | } | |
615 | } | |
616 | } | |
617 | } | |
618 | else { | |
619 | while (MARK <= SP) { | |
620 | if (!do_print(*MARK, fp)) | |
621 | break; | |
622 | MARK++; | |
623 | } | |
624 | } | |
625 | if (MARK <= SP) | |
626 | goto just_say_no; | |
627 | else { | |
7889fe52 NIS |
628 | if (PL_ors_sv && SvOK(PL_ors_sv)) |
629 | if (!do_print(PL_ors_sv, fp)) /* $\ */ | |
a0d0e21e LW |
630 | goto just_say_no; |
631 | ||
632 | if (IoFLAGS(io) & IOf_FLUSH) | |
760ac839 | 633 | if (PerlIO_flush(fp) == EOF) |
a0d0e21e LW |
634 | goto just_say_no; |
635 | } | |
636 | } | |
637 | SP = ORIGMARK; | |
3280af22 | 638 | PUSHs(&PL_sv_yes); |
a0d0e21e LW |
639 | RETURN; |
640 | ||
641 | just_say_no: | |
642 | SP = ORIGMARK; | |
3280af22 | 643 | PUSHs(&PL_sv_undef); |
a0d0e21e LW |
644 | RETURN; |
645 | } | |
646 | ||
647 | PP(pp_rv2av) | |
648 | { | |
f5284f61 | 649 | djSP; dTOPss; |
a0d0e21e LW |
650 | AV *av; |
651 | ||
652 | if (SvROK(sv)) { | |
653 | wasref: | |
f5284f61 IZ |
654 | tryAMAGICunDEREF(to_av); |
655 | ||
a0d0e21e LW |
656 | av = (AV*)SvRV(sv); |
657 | if (SvTYPE(av) != SVt_PVAV) | |
cea2e8a9 | 658 | DIE(aTHX_ "Not an ARRAY reference"); |
533c011a | 659 | if (PL_op->op_flags & OPf_REF) { |
f5284f61 | 660 | SETs((SV*)av); |
a0d0e21e LW |
661 | RETURN; |
662 | } | |
663 | } | |
664 | else { | |
665 | if (SvTYPE(sv) == SVt_PVAV) { | |
666 | av = (AV*)sv; | |
533c011a | 667 | if (PL_op->op_flags & OPf_REF) { |
f5284f61 | 668 | SETs((SV*)av); |
a0d0e21e LW |
669 | RETURN; |
670 | } | |
671 | } | |
672 | else { | |
67955e0c | 673 | GV *gv; |
1c846c1f | 674 | |
a0d0e21e | 675 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 | 676 | char *sym; |
c9d5ac95 | 677 | STRLEN len; |
748a9306 | 678 | |
a0d0e21e LW |
679 | if (SvGMAGICAL(sv)) { |
680 | mg_get(sv); | |
681 | if (SvROK(sv)) | |
682 | goto wasref; | |
683 | } | |
684 | if (!SvOK(sv)) { | |
533c011a NIS |
685 | if (PL_op->op_flags & OPf_REF || |
686 | PL_op->op_private & HINT_STRICT_REFS) | |
cea2e8a9 | 687 | DIE(aTHX_ PL_no_usym, "an ARRAY"); |
599cee73 | 688 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 689 | report_uninit(); |
f5284f61 | 690 | if (GIMME == G_ARRAY) { |
c2444246 | 691 | (void)POPs; |
4633a7c4 | 692 | RETURN; |
f5284f61 IZ |
693 | } |
694 | RETSETUNDEF; | |
a0d0e21e | 695 | } |
c9d5ac95 | 696 | sym = SvPV(sv,len); |
35cd451c GS |
697 | if ((PL_op->op_flags & OPf_SPECIAL) && |
698 | !(PL_op->op_flags & OPf_MOD)) | |
699 | { | |
700 | gv = (GV*)gv_fetchpv(sym, FALSE, SVt_PVAV); | |
c9d5ac95 GS |
701 | if (!gv |
702 | && (!is_gv_magical(sym,len,0) | |
703 | || !(gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVAV)))) | |
704 | { | |
35cd451c | 705 | RETSETUNDEF; |
c9d5ac95 | 706 | } |
35cd451c GS |
707 | } |
708 | else { | |
709 | if (PL_op->op_private & HINT_STRICT_REFS) | |
cea2e8a9 | 710 | DIE(aTHX_ PL_no_symref, sym, "an ARRAY"); |
35cd451c GS |
711 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVAV); |
712 | } | |
713 | } | |
714 | else { | |
67955e0c | 715 | gv = (GV*)sv; |
a0d0e21e | 716 | } |
67955e0c | 717 | av = GvAVn(gv); |
533c011a | 718 | if (PL_op->op_private & OPpLVAL_INTRO) |
67955e0c | 719 | av = save_ary(gv); |
533c011a | 720 | if (PL_op->op_flags & OPf_REF) { |
f5284f61 | 721 | SETs((SV*)av); |
a0d0e21e LW |
722 | RETURN; |
723 | } | |
724 | } | |
725 | } | |
726 | ||
727 | if (GIMME == G_ARRAY) { | |
728 | I32 maxarg = AvFILL(av) + 1; | |
c2444246 | 729 | (void)POPs; /* XXXX May be optimized away? */ |
1c846c1f | 730 | EXTEND(SP, maxarg); |
93965878 | 731 | if (SvRMAGICAL(av)) { |
1c846c1f | 732 | U32 i; |
93965878 NIS |
733 | for (i=0; i < maxarg; i++) { |
734 | SV **svp = av_fetch(av, i, FALSE); | |
3280af22 | 735 | SP[i+1] = (svp) ? *svp : &PL_sv_undef; |
93965878 | 736 | } |
1c846c1f | 737 | } |
93965878 NIS |
738 | else { |
739 | Copy(AvARRAY(av), SP+1, maxarg, SV*); | |
740 | } | |
a0d0e21e LW |
741 | SP += maxarg; |
742 | } | |
743 | else { | |
744 | dTARGET; | |
745 | I32 maxarg = AvFILL(av) + 1; | |
f5284f61 | 746 | SETi(maxarg); |
a0d0e21e LW |
747 | } |
748 | RETURN; | |
749 | } | |
750 | ||
751 | PP(pp_rv2hv) | |
752 | { | |
4e35701f | 753 | djSP; dTOPss; |
a0d0e21e LW |
754 | HV *hv; |
755 | ||
756 | if (SvROK(sv)) { | |
757 | wasref: | |
f5284f61 IZ |
758 | tryAMAGICunDEREF(to_hv); |
759 | ||
a0d0e21e | 760 | hv = (HV*)SvRV(sv); |
c750a3ec | 761 | if (SvTYPE(hv) != SVt_PVHV && SvTYPE(hv) != SVt_PVAV) |
cea2e8a9 | 762 | DIE(aTHX_ "Not a HASH reference"); |
533c011a | 763 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e LW |
764 | SETs((SV*)hv); |
765 | RETURN; | |
766 | } | |
767 | } | |
768 | else { | |
c750a3ec | 769 | if (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) { |
a0d0e21e | 770 | hv = (HV*)sv; |
533c011a | 771 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e LW |
772 | SETs((SV*)hv); |
773 | RETURN; | |
774 | } | |
775 | } | |
776 | else { | |
67955e0c | 777 | GV *gv; |
1c846c1f | 778 | |
a0d0e21e | 779 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 | 780 | char *sym; |
c9d5ac95 | 781 | STRLEN len; |
748a9306 | 782 | |
a0d0e21e LW |
783 | if (SvGMAGICAL(sv)) { |
784 | mg_get(sv); | |
785 | if (SvROK(sv)) | |
786 | goto wasref; | |
787 | } | |
788 | if (!SvOK(sv)) { | |
533c011a NIS |
789 | if (PL_op->op_flags & OPf_REF || |
790 | PL_op->op_private & HINT_STRICT_REFS) | |
cea2e8a9 | 791 | DIE(aTHX_ PL_no_usym, "a HASH"); |
599cee73 | 792 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 793 | report_uninit(); |
4633a7c4 LW |
794 | if (GIMME == G_ARRAY) { |
795 | SP--; | |
796 | RETURN; | |
797 | } | |
a0d0e21e LW |
798 | RETSETUNDEF; |
799 | } | |
c9d5ac95 | 800 | sym = SvPV(sv,len); |
35cd451c GS |
801 | if ((PL_op->op_flags & OPf_SPECIAL) && |
802 | !(PL_op->op_flags & OPf_MOD)) | |
803 | { | |
804 | gv = (GV*)gv_fetchpv(sym, FALSE, SVt_PVHV); | |
c9d5ac95 GS |
805 | if (!gv |
806 | && (!is_gv_magical(sym,len,0) | |
807 | || !(gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVHV)))) | |
808 | { | |
35cd451c | 809 | RETSETUNDEF; |
c9d5ac95 | 810 | } |
35cd451c GS |
811 | } |
812 | else { | |
813 | if (PL_op->op_private & HINT_STRICT_REFS) | |
cea2e8a9 | 814 | DIE(aTHX_ PL_no_symref, sym, "a HASH"); |
35cd451c GS |
815 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVHV); |
816 | } | |
817 | } | |
818 | else { | |
67955e0c | 819 | gv = (GV*)sv; |
a0d0e21e | 820 | } |
67955e0c | 821 | hv = GvHVn(gv); |
533c011a | 822 | if (PL_op->op_private & OPpLVAL_INTRO) |
67955e0c | 823 | hv = save_hash(gv); |
533c011a | 824 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e LW |
825 | SETs((SV*)hv); |
826 | RETURN; | |
827 | } | |
828 | } | |
829 | } | |
830 | ||
831 | if (GIMME == G_ARRAY) { /* array wanted */ | |
3280af22 | 832 | *PL_stack_sp = (SV*)hv; |
cea2e8a9 | 833 | return do_kv(); |
a0d0e21e LW |
834 | } |
835 | else { | |
836 | dTARGET; | |
4b154ab5 GA |
837 | if (SvTYPE(hv) == SVt_PVAV) |
838 | hv = avhv_keys((AV*)hv); | |
b9c39e73 | 839 | if (HvFILL(hv)) |
57def98f JH |
840 | Perl_sv_setpvf(aTHX_ TARG, "%"IVdf"/%"IVdf, |
841 | (IV)HvFILL(hv), (IV)HvMAX(hv) + 1); | |
a0d0e21e LW |
842 | else |
843 | sv_setiv(TARG, 0); | |
c750a3ec | 844 | |
a0d0e21e LW |
845 | SETTARG; |
846 | RETURN; | |
847 | } | |
848 | } | |
849 | ||
10c8fecd GS |
850 | STATIC int |
851 | S_do_maybe_phash(pTHX_ AV *ary, SV **lelem, SV **firstlelem, SV **relem, | |
852 | SV **lastrelem) | |
853 | { | |
854 | OP *leftop; | |
10c8fecd GS |
855 | I32 i; |
856 | ||
857 | leftop = ((BINOP*)PL_op)->op_last; | |
858 | assert(leftop); | |
859 | assert(leftop->op_type == OP_NULL && leftop->op_targ == OP_LIST); | |
860 | leftop = ((LISTOP*)leftop)->op_first; | |
861 | assert(leftop); | |
862 | /* Skip PUSHMARK and each element already assigned to. */ | |
863 | for (i = lelem - firstlelem; i > 0; i--) { | |
864 | leftop = leftop->op_sibling; | |
865 | assert(leftop); | |
866 | } | |
867 | if (leftop->op_type != OP_RV2HV) | |
868 | return 0; | |
869 | ||
870 | /* pseudohash */ | |
871 | if (av_len(ary) > 0) | |
872 | av_fill(ary, 0); /* clear all but the fields hash */ | |
873 | if (lastrelem >= relem) { | |
874 | while (relem < lastrelem) { /* gobble up all the rest */ | |
875 | SV *tmpstr; | |
876 | assert(relem[0]); | |
877 | assert(relem[1]); | |
878 | /* Avoid a memory leak when avhv_store_ent dies. */ | |
879 | tmpstr = sv_newmortal(); | |
880 | sv_setsv(tmpstr,relem[1]); /* value */ | |
881 | relem[1] = tmpstr; | |
882 | if (avhv_store_ent(ary,relem[0],tmpstr,0)) | |
d16e9ed9 | 883 | (void)SvREFCNT_inc(tmpstr); |
10c8fecd GS |
884 | if (SvMAGICAL(ary) != 0 && SvSMAGICAL(tmpstr)) |
885 | mg_set(tmpstr); | |
886 | relem += 2; | |
887 | TAINT_NOT; | |
888 | } | |
889 | } | |
890 | if (relem == lastrelem) | |
891 | return 1; | |
892 | return 2; | |
893 | } | |
894 | ||
895 | STATIC void | |
896 | S_do_oddball(pTHX_ HV *hash, SV **relem, SV **firstrelem) | |
897 | { | |
898 | if (*relem) { | |
899 | SV *tmpstr; | |
900 | if (ckWARN(WARN_MISC)) { | |
901 | if (relem == firstrelem && | |
902 | SvROK(*relem) && | |
903 | (SvTYPE(SvRV(*relem)) == SVt_PVAV || | |
904 | SvTYPE(SvRV(*relem)) == SVt_PVHV)) | |
905 | { | |
906 | Perl_warner(aTHX_ WARN_MISC, | |
907 | "Reference found where even-sized list expected"); | |
908 | } | |
909 | else | |
910 | Perl_warner(aTHX_ WARN_MISC, | |
911 | "Odd number of elements in hash assignment"); | |
912 | } | |
913 | if (SvTYPE(hash) == SVt_PVAV) { | |
914 | /* pseudohash */ | |
915 | tmpstr = sv_newmortal(); | |
916 | if (avhv_store_ent((AV*)hash,*relem,tmpstr,0)) | |
d16e9ed9 | 917 | (void)SvREFCNT_inc(tmpstr); |
10c8fecd GS |
918 | if (SvMAGICAL(hash) && SvSMAGICAL(tmpstr)) |
919 | mg_set(tmpstr); | |
920 | } | |
921 | else { | |
922 | HE *didstore; | |
923 | tmpstr = NEWSV(29,0); | |
924 | didstore = hv_store_ent(hash,*relem,tmpstr,0); | |
925 | if (SvMAGICAL(hash)) { | |
926 | if (SvSMAGICAL(tmpstr)) | |
927 | mg_set(tmpstr); | |
928 | if (!didstore) | |
929 | sv_2mortal(tmpstr); | |
930 | } | |
931 | } | |
932 | TAINT_NOT; | |
933 | } | |
934 | } | |
935 | ||
a0d0e21e LW |
936 | PP(pp_aassign) |
937 | { | |
4e35701f | 938 | djSP; |
3280af22 NIS |
939 | SV **lastlelem = PL_stack_sp; |
940 | SV **lastrelem = PL_stack_base + POPMARK; | |
941 | SV **firstrelem = PL_stack_base + POPMARK + 1; | |
a0d0e21e LW |
942 | SV **firstlelem = lastrelem + 1; |
943 | ||
944 | register SV **relem; | |
945 | register SV **lelem; | |
946 | ||
947 | register SV *sv; | |
948 | register AV *ary; | |
949 | ||
54310121 | 950 | I32 gimme; |
a0d0e21e LW |
951 | HV *hash; |
952 | I32 i; | |
953 | int magic; | |
954 | ||
3280af22 | 955 | PL_delaymagic = DM_DELAY; /* catch simultaneous items */ |
a0d0e21e LW |
956 | |
957 | /* If there's a common identifier on both sides we have to take | |
958 | * special care that assigning the identifier on the left doesn't | |
959 | * clobber a value on the right that's used later in the list. | |
960 | */ | |
10c8fecd | 961 | if (PL_op->op_private & (OPpASSIGN_COMMON)) { |
cc5e57d2 | 962 | EXTEND_MORTAL(lastrelem - firstrelem + 1); |
10c8fecd GS |
963 | for (relem = firstrelem; relem <= lastrelem; relem++) { |
964 | /*SUPPRESS 560*/ | |
155aba94 | 965 | if ((sv = *relem)) { |
a1f49e72 | 966 | TAINT_NOT; /* Each item is independent */ |
10c8fecd | 967 | *relem = sv_mortalcopy(sv); |
a1f49e72 | 968 | } |
10c8fecd | 969 | } |
a0d0e21e LW |
970 | } |
971 | ||
972 | relem = firstrelem; | |
973 | lelem = firstlelem; | |
974 | ary = Null(AV*); | |
975 | hash = Null(HV*); | |
10c8fecd | 976 | |
a0d0e21e | 977 | while (lelem <= lastlelem) { |
bbce6d69 | 978 | TAINT_NOT; /* Each item stands on its own, taintwise. */ |
a0d0e21e LW |
979 | sv = *lelem++; |
980 | switch (SvTYPE(sv)) { | |
981 | case SVt_PVAV: | |
982 | ary = (AV*)sv; | |
748a9306 | 983 | magic = SvMAGICAL(ary) != 0; |
10c8fecd GS |
984 | if (PL_op->op_private & OPpASSIGN_HASH) { |
985 | switch (do_maybe_phash(ary, lelem, firstlelem, relem, | |
986 | lastrelem)) | |
987 | { | |
988 | case 0: | |
989 | goto normal_array; | |
990 | case 1: | |
991 | do_oddball((HV*)ary, relem, firstrelem); | |
992 | } | |
993 | relem = lastrelem + 1; | |
994 | break; | |
995 | } | |
996 | normal_array: | |
a0d0e21e | 997 | av_clear(ary); |
7e42bd57 | 998 | av_extend(ary, lastrelem - relem); |
a0d0e21e LW |
999 | i = 0; |
1000 | while (relem <= lastrelem) { /* gobble up all the rest */ | |
5117ca91 | 1001 | SV **didstore; |
a0d0e21e LW |
1002 | sv = NEWSV(28,0); |
1003 | assert(*relem); | |
1004 | sv_setsv(sv,*relem); | |
1005 | *(relem++) = sv; | |
5117ca91 GS |
1006 | didstore = av_store(ary,i++,sv); |
1007 | if (magic) { | |
fb73857a | 1008 | if (SvSMAGICAL(sv)) |
1009 | mg_set(sv); | |
5117ca91 | 1010 | if (!didstore) |
8127e0e3 | 1011 | sv_2mortal(sv); |
5117ca91 | 1012 | } |
bbce6d69 | 1013 | TAINT_NOT; |
a0d0e21e LW |
1014 | } |
1015 | break; | |
10c8fecd | 1016 | case SVt_PVHV: { /* normal hash */ |
a0d0e21e LW |
1017 | SV *tmpstr; |
1018 | ||
1019 | hash = (HV*)sv; | |
748a9306 | 1020 | magic = SvMAGICAL(hash) != 0; |
a0d0e21e LW |
1021 | hv_clear(hash); |
1022 | ||
1023 | while (relem < lastrelem) { /* gobble up all the rest */ | |
5117ca91 | 1024 | HE *didstore; |
4633a7c4 | 1025 | if (*relem) |
a0d0e21e | 1026 | sv = *(relem++); |
4633a7c4 | 1027 | else |
3280af22 | 1028 | sv = &PL_sv_no, relem++; |
a0d0e21e LW |
1029 | tmpstr = NEWSV(29,0); |
1030 | if (*relem) | |
1031 | sv_setsv(tmpstr,*relem); /* value */ | |
1032 | *(relem++) = tmpstr; | |
5117ca91 GS |
1033 | didstore = hv_store_ent(hash,sv,tmpstr,0); |
1034 | if (magic) { | |
fb73857a | 1035 | if (SvSMAGICAL(tmpstr)) |
1036 | mg_set(tmpstr); | |
5117ca91 | 1037 | if (!didstore) |
8127e0e3 | 1038 | sv_2mortal(tmpstr); |
5117ca91 | 1039 | } |
bbce6d69 | 1040 | TAINT_NOT; |
8e07c86e | 1041 | } |
6a0deba8 | 1042 | if (relem == lastrelem) { |
10c8fecd | 1043 | do_oddball(hash, relem, firstrelem); |
6a0deba8 | 1044 | relem++; |
1930e939 | 1045 | } |
a0d0e21e LW |
1046 | } |
1047 | break; | |
1048 | default: | |
6fc92669 GS |
1049 | if (SvIMMORTAL(sv)) { |
1050 | if (relem <= lastrelem) | |
1051 | relem++; | |
1052 | break; | |
a0d0e21e LW |
1053 | } |
1054 | if (relem <= lastrelem) { | |
1055 | sv_setsv(sv, *relem); | |
1056 | *(relem++) = sv; | |
1057 | } | |
1058 | else | |
3280af22 | 1059 | sv_setsv(sv, &PL_sv_undef); |
a0d0e21e LW |
1060 | SvSETMAGIC(sv); |
1061 | break; | |
1062 | } | |
1063 | } | |
3280af22 NIS |
1064 | if (PL_delaymagic & ~DM_DELAY) { |
1065 | if (PL_delaymagic & DM_UID) { | |
a0d0e21e | 1066 | #ifdef HAS_SETRESUID |
b28d0864 | 1067 | (void)setresuid(PL_uid,PL_euid,(Uid_t)-1); |
56febc5e AD |
1068 | #else |
1069 | # ifdef HAS_SETREUID | |
3280af22 | 1070 | (void)setreuid(PL_uid,PL_euid); |
56febc5e AD |
1071 | # else |
1072 | # ifdef HAS_SETRUID | |
b28d0864 NIS |
1073 | if ((PL_delaymagic & DM_UID) == DM_RUID) { |
1074 | (void)setruid(PL_uid); | |
1075 | PL_delaymagic &= ~DM_RUID; | |
a0d0e21e | 1076 | } |
56febc5e AD |
1077 | # endif /* HAS_SETRUID */ |
1078 | # ifdef HAS_SETEUID | |
b28d0864 NIS |
1079 | if ((PL_delaymagic & DM_UID) == DM_EUID) { |
1080 | (void)seteuid(PL_uid); | |
1081 | PL_delaymagic &= ~DM_EUID; | |
a0d0e21e | 1082 | } |
56febc5e | 1083 | # endif /* HAS_SETEUID */ |
b28d0864 NIS |
1084 | if (PL_delaymagic & DM_UID) { |
1085 | if (PL_uid != PL_euid) | |
cea2e8a9 | 1086 | DIE(aTHX_ "No setreuid available"); |
b28d0864 | 1087 | (void)PerlProc_setuid(PL_uid); |
a0d0e21e | 1088 | } |
56febc5e AD |
1089 | # endif /* HAS_SETREUID */ |
1090 | #endif /* HAS_SETRESUID */ | |
d8eceb89 JH |
1091 | PL_uid = PerlProc_getuid(); |
1092 | PL_euid = PerlProc_geteuid(); | |
a0d0e21e | 1093 | } |
3280af22 | 1094 | if (PL_delaymagic & DM_GID) { |
a0d0e21e | 1095 | #ifdef HAS_SETRESGID |
b28d0864 | 1096 | (void)setresgid(PL_gid,PL_egid,(Gid_t)-1); |
56febc5e AD |
1097 | #else |
1098 | # ifdef HAS_SETREGID | |
3280af22 | 1099 | (void)setregid(PL_gid,PL_egid); |
56febc5e AD |
1100 | # else |
1101 | # ifdef HAS_SETRGID | |
b28d0864 NIS |
1102 | if ((PL_delaymagic & DM_GID) == DM_RGID) { |
1103 | (void)setrgid(PL_gid); | |
1104 | PL_delaymagic &= ~DM_RGID; | |
a0d0e21e | 1105 | } |
56febc5e AD |
1106 | # endif /* HAS_SETRGID */ |
1107 | # ifdef HAS_SETEGID | |
b28d0864 NIS |
1108 | if ((PL_delaymagic & DM_GID) == DM_EGID) { |
1109 | (void)setegid(PL_gid); | |
1110 | PL_delaymagic &= ~DM_EGID; | |
a0d0e21e | 1111 | } |
56febc5e | 1112 | # endif /* HAS_SETEGID */ |
b28d0864 NIS |
1113 | if (PL_delaymagic & DM_GID) { |
1114 | if (PL_gid != PL_egid) | |
cea2e8a9 | 1115 | DIE(aTHX_ "No setregid available"); |
b28d0864 | 1116 | (void)PerlProc_setgid(PL_gid); |
a0d0e21e | 1117 | } |
56febc5e AD |
1118 | # endif /* HAS_SETREGID */ |
1119 | #endif /* HAS_SETRESGID */ | |
d8eceb89 JH |
1120 | PL_gid = PerlProc_getgid(); |
1121 | PL_egid = PerlProc_getegid(); | |
a0d0e21e | 1122 | } |
3280af22 | 1123 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
a0d0e21e | 1124 | } |
3280af22 | 1125 | PL_delaymagic = 0; |
54310121 | 1126 | |
1127 | gimme = GIMME_V; | |
1128 | if (gimme == G_VOID) | |
1129 | SP = firstrelem - 1; | |
1130 | else if (gimme == G_SCALAR) { | |
1131 | dTARGET; | |
1132 | SP = firstrelem; | |
1133 | SETi(lastrelem - firstrelem + 1); | |
1134 | } | |
1135 | else { | |
a0d0e21e LW |
1136 | if (ary || hash) |
1137 | SP = lastrelem; | |
1138 | else | |
1139 | SP = firstrelem + (lastlelem - firstlelem); | |
0c8c7a05 | 1140 | lelem = firstlelem + (relem - firstrelem); |
5f05dabc | 1141 | while (relem <= SP) |
3280af22 | 1142 | *relem++ = (lelem <= lastlelem) ? *lelem++ : &PL_sv_undef; |
a0d0e21e | 1143 | } |
54310121 | 1144 | RETURN; |
a0d0e21e LW |
1145 | } |
1146 | ||
8782bef2 GB |
1147 | PP(pp_qr) |
1148 | { | |
1149 | djSP; | |
1150 | register PMOP *pm = cPMOP; | |
1151 | SV *rv = sv_newmortal(); | |
57668c4d | 1152 | SV *sv = newSVrv(rv, "Regexp"); |
8782bef2 GB |
1153 | sv_magic(sv,(SV*)ReREFCNT_inc(pm->op_pmregexp),'r',0,0); |
1154 | RETURNX(PUSHs(rv)); | |
1155 | } | |
1156 | ||
a0d0e21e LW |
1157 | PP(pp_match) |
1158 | { | |
4e35701f | 1159 | djSP; dTARG; |
a0d0e21e LW |
1160 | register PMOP *pm = cPMOP; |
1161 | register char *t; | |
1162 | register char *s; | |
1163 | char *strend; | |
1164 | I32 global; | |
f722798b IZ |
1165 | I32 r_flags = REXEC_CHECKED; |
1166 | char *truebase; /* Start of string */ | |
d9f97599 | 1167 | register REGEXP *rx = pm->op_pmregexp; |
b3eb6a9b | 1168 | bool rxtainted; |
a0d0e21e LW |
1169 | I32 gimme = GIMME; |
1170 | STRLEN len; | |
748a9306 | 1171 | I32 minmatch = 0; |
3280af22 | 1172 | I32 oldsave = PL_savestack_ix; |
f86702cc | 1173 | I32 update_minmatch = 1; |
e60df1fa | 1174 | I32 had_zerolen = 0; |
a0d0e21e | 1175 | |
533c011a | 1176 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e LW |
1177 | TARG = POPs; |
1178 | else { | |
54b9620d | 1179 | TARG = DEFSV; |
a0d0e21e LW |
1180 | EXTEND(SP,1); |
1181 | } | |
ffc61ed2 | 1182 | PL_reg_sv = TARG; |
c277df42 | 1183 | PUTBACK; /* EVAL blocks need stack_sp. */ |
a0d0e21e LW |
1184 | s = SvPV(TARG, len); |
1185 | strend = s + len; | |
1186 | if (!s) | |
2269b42e | 1187 | DIE(aTHX_ "panic: pp_match"); |
b3eb6a9b | 1188 | rxtainted = ((pm->op_pmdynflags & PMdf_TAINTED) || |
3280af22 | 1189 | (PL_tainted && (pm->op_pmflags & PMf_RETAINT))); |
9212bbba | 1190 | TAINT_NOT; |
a0d0e21e | 1191 | |
48c036b1 | 1192 | if (pm->op_pmdynflags & PMdf_USED) { |
c277df42 | 1193 | failure: |
a0d0e21e LW |
1194 | if (gimme == G_ARRAY) |
1195 | RETURN; | |
1196 | RETPUSHNO; | |
1197 | } | |
1198 | ||
3280af22 NIS |
1199 | if (!rx->prelen && PL_curpm) { |
1200 | pm = PL_curpm; | |
d9f97599 | 1201 | rx = pm->op_pmregexp; |
a0d0e21e | 1202 | } |
d9f97599 | 1203 | if (rx->minlen > len) goto failure; |
c277df42 | 1204 | |
a0d0e21e | 1205 | truebase = t = s; |
ad94a511 IZ |
1206 | |
1207 | /* XXXX What part of this is needed with true \G-support? */ | |
155aba94 | 1208 | if ((global = pm->op_pmflags & PMf_GLOBAL)) { |
cf93c79d | 1209 | rx->startp[0] = -1; |
a0d0e21e LW |
1210 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
1211 | MAGIC* mg = mg_find(TARG, 'g'); | |
565764a8 | 1212 | if (mg && mg->mg_len >= 0) { |
b7a35066 | 1213 | if (!(rx->reganch & ROPT_GPOS_SEEN)) |
1c846c1f | 1214 | rx->endp[0] = rx->startp[0] = mg->mg_len; |
0ef3e39e HS |
1215 | else if (rx->reganch & ROPT_ANCH_GPOS) { |
1216 | r_flags |= REXEC_IGNOREPOS; | |
1c846c1f | 1217 | rx->endp[0] = rx->startp[0] = mg->mg_len; |
0ef3e39e | 1218 | } |
748a9306 | 1219 | minmatch = (mg->mg_flags & MGf_MINMATCH); |
f86702cc | 1220 | update_minmatch = 0; |
748a9306 | 1221 | } |
a0d0e21e LW |
1222 | } |
1223 | } | |
0ef3e39e HS |
1224 | if ((gimme != G_ARRAY && !global && rx->nparens) |
1225 | || SvTEMP(TARG) || PL_sawampersand) | |
1226 | r_flags |= REXEC_COPY_STR; | |
1c846c1f | 1227 | if (SvSCREAM(TARG)) |
22e551b9 IZ |
1228 | r_flags |= REXEC_SCREAM; |
1229 | ||
a0d0e21e | 1230 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
3280af22 NIS |
1231 | SAVEINT(PL_multiline); |
1232 | PL_multiline = pm->op_pmflags & PMf_MULTILINE; | |
a0d0e21e LW |
1233 | } |
1234 | ||
1235 | play_it_again: | |
cf93c79d IZ |
1236 | if (global && rx->startp[0] != -1) { |
1237 | t = s = rx->endp[0] + truebase; | |
d9f97599 | 1238 | if ((s + rx->minlen) > strend) |
a0d0e21e | 1239 | goto nope; |
f86702cc | 1240 | if (update_minmatch++) |
e60df1fa | 1241 | minmatch = had_zerolen; |
a0d0e21e | 1242 | } |
60aeb6fd NIS |
1243 | if (rx->reganch & RE_USE_INTUIT && |
1244 | DO_UTF8(TARG) == ((rx->reganch & ROPT_UTF8) != 0)) { | |
f722798b IZ |
1245 | s = CALLREG_INTUIT_START(aTHX_ rx, TARG, s, strend, r_flags, NULL); |
1246 | ||
1247 | if (!s) | |
1248 | goto nope; | |
1249 | if ( (rx->reganch & ROPT_CHECK_ALL) | |
1c846c1f | 1250 | && !PL_sawampersand |
f722798b IZ |
1251 | && ((rx->reganch & ROPT_NOSCAN) |
1252 | || !((rx->reganch & RE_INTUIT_TAIL) | |
05b4157f GS |
1253 | && (r_flags & REXEC_SCREAM))) |
1254 | && !SvROK(TARG)) /* Cannot trust since INTUIT cannot guess ^ */ | |
f722798b | 1255 | goto yup; |
a0d0e21e | 1256 | } |
cea2e8a9 | 1257 | if (CALLREGEXEC(aTHX_ rx, s, strend, truebase, minmatch, TARG, NULL, r_flags)) |
bbce6d69 | 1258 | { |
3280af22 | 1259 | PL_curpm = pm; |
a0d0e21e | 1260 | if (pm->op_pmflags & PMf_ONCE) |
48c036b1 | 1261 | pm->op_pmdynflags |= PMdf_USED; |
a0d0e21e LW |
1262 | goto gotcha; |
1263 | } | |
1264 | else | |
1265 | goto ret_no; | |
1266 | /*NOTREACHED*/ | |
1267 | ||
1268 | gotcha: | |
72311751 GS |
1269 | if (rxtainted) |
1270 | RX_MATCH_TAINTED_on(rx); | |
1271 | TAINT_IF(RX_MATCH_TAINTED(rx)); | |
a0d0e21e | 1272 | if (gimme == G_ARRAY) { |
ffc61ed2 | 1273 | I32 nparens, i, len; |
a0d0e21e | 1274 | |
ffc61ed2 JH |
1275 | nparens = rx->nparens; |
1276 | if (global && !nparens) | |
a0d0e21e LW |
1277 | i = 1; |
1278 | else | |
1279 | i = 0; | |
c277df42 | 1280 | SPAGAIN; /* EVAL blocks could move the stack. */ |
ffc61ed2 JH |
1281 | EXTEND(SP, nparens + i); |
1282 | EXTEND_MORTAL(nparens + i); | |
1283 | for (i = !i; i <= nparens; i++) { | |
a0d0e21e LW |
1284 | PUSHs(sv_newmortal()); |
1285 | /*SUPPRESS 560*/ | |
cf93c79d IZ |
1286 | if ((rx->startp[i] != -1) && rx->endp[i] != -1 ) { |
1287 | len = rx->endp[i] - rx->startp[i]; | |
1288 | s = rx->startp[i] + truebase; | |
a0d0e21e | 1289 | sv_setpvn(*SP, s, len); |
ffc61ed2 | 1290 | if (DO_UTF8(TARG)) |
a197cbdd | 1291 | SvUTF8_on(*SP); |
a0d0e21e LW |
1292 | } |
1293 | } | |
1294 | if (global) { | |
cf93c79d IZ |
1295 | had_zerolen = (rx->startp[0] != -1 |
1296 | && rx->startp[0] == rx->endp[0]); | |
c277df42 | 1297 | PUTBACK; /* EVAL blocks may use stack */ |
cf93c79d | 1298 | r_flags |= REXEC_IGNOREPOS | REXEC_NOT_FIRST; |
a0d0e21e LW |
1299 | goto play_it_again; |
1300 | } | |
ffc61ed2 | 1301 | else if (!nparens) |
bde848c5 | 1302 | XPUSHs(&PL_sv_yes); |
4633a7c4 | 1303 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1304 | RETURN; |
1305 | } | |
1306 | else { | |
1307 | if (global) { | |
1308 | MAGIC* mg = 0; | |
1309 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) | |
1310 | mg = mg_find(TARG, 'g'); | |
1311 | if (!mg) { | |
1312 | sv_magic(TARG, (SV*)0, 'g', Nullch, 0); | |
1313 | mg = mg_find(TARG, 'g'); | |
1314 | } | |
cf93c79d IZ |
1315 | if (rx->startp[0] != -1) { |
1316 | mg->mg_len = rx->endp[0]; | |
d9f97599 | 1317 | if (rx->startp[0] == rx->endp[0]) |
748a9306 LW |
1318 | mg->mg_flags |= MGf_MINMATCH; |
1319 | else | |
1320 | mg->mg_flags &= ~MGf_MINMATCH; | |
1321 | } | |
a0d0e21e | 1322 | } |
4633a7c4 | 1323 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1324 | RETPUSHYES; |
1325 | } | |
1326 | ||
f722798b | 1327 | yup: /* Confirmed by INTUIT */ |
72311751 GS |
1328 | if (rxtainted) |
1329 | RX_MATCH_TAINTED_on(rx); | |
1330 | TAINT_IF(RX_MATCH_TAINTED(rx)); | |
3280af22 | 1331 | PL_curpm = pm; |
a0d0e21e | 1332 | if (pm->op_pmflags & PMf_ONCE) |
48c036b1 | 1333 | pm->op_pmdynflags |= PMdf_USED; |
cf93c79d IZ |
1334 | if (RX_MATCH_COPIED(rx)) |
1335 | Safefree(rx->subbeg); | |
1336 | RX_MATCH_COPIED_off(rx); | |
1337 | rx->subbeg = Nullch; | |
a0d0e21e | 1338 | if (global) { |
d9f97599 | 1339 | rx->subbeg = truebase; |
cf93c79d | 1340 | rx->startp[0] = s - truebase; |
60aeb6fd NIS |
1341 | if (DO_UTF8(PL_reg_sv)) { |
1342 | char *t = (char*)utf8_hop((U8*)s, rx->minlen); | |
1343 | rx->endp[0] = t - truebase; | |
1344 | } | |
1345 | else { | |
1346 | rx->endp[0] = s - truebase + rx->minlen; | |
1347 | } | |
cf93c79d | 1348 | rx->sublen = strend - truebase; |
a0d0e21e | 1349 | goto gotcha; |
1c846c1f | 1350 | } |
3280af22 | 1351 | if (PL_sawampersand) { |
cf93c79d | 1352 | I32 off; |
a0d0e21e | 1353 | |
cf93c79d IZ |
1354 | rx->subbeg = savepvn(t, strend - t); |
1355 | rx->sublen = strend - t; | |
1356 | RX_MATCH_COPIED_on(rx); | |
1357 | off = rx->startp[0] = s - t; | |
f722798b | 1358 | rx->endp[0] = off + rx->minlen; |
cf93c79d IZ |
1359 | } |
1360 | else { /* startp/endp are used by @- @+. */ | |
1361 | rx->startp[0] = s - truebase; | |
f722798b | 1362 | rx->endp[0] = s - truebase + rx->minlen; |
a0d0e21e | 1363 | } |
fc19f8d0 | 1364 | rx->nparens = rx->lastparen = 0; /* used by @- and @+ */ |
4633a7c4 | 1365 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1366 | RETPUSHYES; |
1367 | ||
1368 | nope: | |
a0d0e21e | 1369 | ret_no: |
c90c0ff4 | 1370 | if (global && !(pm->op_pmflags & PMf_CONTINUE)) { |
a0d0e21e LW |
1371 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
1372 | MAGIC* mg = mg_find(TARG, 'g'); | |
1373 | if (mg) | |
565764a8 | 1374 | mg->mg_len = -1; |
a0d0e21e LW |
1375 | } |
1376 | } | |
4633a7c4 | 1377 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1378 | if (gimme == G_ARRAY) |
1379 | RETURN; | |
1380 | RETPUSHNO; | |
1381 | } | |
1382 | ||
1383 | OP * | |
864dbfa3 | 1384 | Perl_do_readline(pTHX) |
a0d0e21e LW |
1385 | { |
1386 | dSP; dTARGETSTACKED; | |
1387 | register SV *sv; | |
1388 | STRLEN tmplen = 0; | |
1389 | STRLEN offset; | |
760ac839 | 1390 | PerlIO *fp; |
3280af22 | 1391 | register IO *io = GvIO(PL_last_in_gv); |
533c011a | 1392 | register I32 type = PL_op->op_type; |
54310121 | 1393 | I32 gimme = GIMME_V; |
e79b0511 | 1394 | MAGIC *mg; |
a0d0e21e | 1395 | |
155aba94 | 1396 | if ((mg = SvTIED_mg((SV*)PL_last_in_gv, 'q'))) { |
e79b0511 | 1397 | PUSHMARK(SP); |
33c27489 | 1398 | XPUSHs(SvTIED_obj((SV*)PL_last_in_gv, mg)); |
e79b0511 | 1399 | PUTBACK; |
1400 | ENTER; | |
864dbfa3 | 1401 | call_method("READLINE", gimme); |
e79b0511 | 1402 | LEAVE; |
1403 | SPAGAIN; | |
54310121 | 1404 | if (gimme == G_SCALAR) |
1405 | SvSetMagicSV_nosteal(TARG, TOPs); | |
e79b0511 | 1406 | RETURN; |
1407 | } | |
a0d0e21e LW |
1408 | fp = Nullfp; |
1409 | if (io) { | |
1410 | fp = IoIFP(io); | |
1411 | if (!fp) { | |
1412 | if (IoFLAGS(io) & IOf_ARGV) { | |
1413 | if (IoFLAGS(io) & IOf_START) { | |
a0d0e21e | 1414 | IoLINES(io) = 0; |
3280af22 | 1415 | if (av_len(GvAVn(PL_last_in_gv)) < 0) { |
1d7c1841 | 1416 | IoFLAGS(io) &= ~IOf_START; |
9d116dd7 | 1417 | do_open(PL_last_in_gv,"-",1,FALSE,O_RDONLY,0,Nullfp); |
3280af22 NIS |
1418 | sv_setpvn(GvSV(PL_last_in_gv), "-", 1); |
1419 | SvSETMAGIC(GvSV(PL_last_in_gv)); | |
a2008d6d GS |
1420 | fp = IoIFP(io); |
1421 | goto have_fp; | |
a0d0e21e LW |
1422 | } |
1423 | } | |
3280af22 | 1424 | fp = nextargv(PL_last_in_gv); |
a0d0e21e | 1425 | if (!fp) { /* Note: fp != IoIFP(io) */ |
3280af22 | 1426 | (void)do_close(PL_last_in_gv, FALSE); /* now it does*/ |
a0d0e21e LW |
1427 | } |
1428 | } | |
0d44d22b NC |
1429 | else if (type == OP_GLOB) |
1430 | fp = Perl_start_glob(aTHX_ POPs, io); | |
a0d0e21e LW |
1431 | } |
1432 | else if (type == OP_GLOB) | |
1433 | SP--; | |
af8c498a | 1434 | else if (ckWARN(WARN_IO) /* stdout/stderr or other write fh */ |
9f37169a | 1435 | && (IoTYPE(io) == IoTYPE_WRONLY || fp == PerlIO_stdout() |
af8c498a | 1436 | || fp == PerlIO_stderr())) |
4c80c0b2 | 1437 | report_evil_fh(PL_last_in_gv, io, OP_phoney_OUTPUT_ONLY); |
a0d0e21e LW |
1438 | } |
1439 | if (!fp) { | |
790090df HS |
1440 | if (ckWARN2(WARN_GLOB, WARN_CLOSED) |
1441 | && (!io || !(IoFLAGS(io) & IOf_START))) { | |
3f4520fe | 1442 | if (type == OP_GLOB) |
e476b1b5 | 1443 | Perl_warner(aTHX_ WARN_GLOB, |
af8c498a GS |
1444 | "glob failed (can't start child: %s)", |
1445 | Strerror(errno)); | |
69282e91 | 1446 | else |
bc37a18f | 1447 | report_evil_fh(PL_last_in_gv, io, PL_op->op_type); |
3f4520fe | 1448 | } |
54310121 | 1449 | if (gimme == G_SCALAR) { |
a0d0e21e LW |
1450 | (void)SvOK_off(TARG); |
1451 | PUSHTARG; | |
1452 | } | |
1453 | RETURN; | |
1454 | } | |
a2008d6d | 1455 | have_fp: |
54310121 | 1456 | if (gimme == G_SCALAR) { |
a0d0e21e | 1457 | sv = TARG; |
9607fc9c | 1458 | if (SvROK(sv)) |
1459 | sv_unref(sv); | |
a0d0e21e LW |
1460 | (void)SvUPGRADE(sv, SVt_PV); |
1461 | tmplen = SvLEN(sv); /* remember if already alloced */ | |
1462 | if (!tmplen) | |
1463 | Sv_Grow(sv, 80); /* try short-buffering it */ | |
1464 | if (type == OP_RCATLINE) | |
1465 | offset = SvCUR(sv); | |
1466 | else | |
1467 | offset = 0; | |
1468 | } | |
54310121 | 1469 | else { |
1470 | sv = sv_2mortal(NEWSV(57, 80)); | |
1471 | offset = 0; | |
1472 | } | |
fbad3eb5 | 1473 | |
3887d568 AP |
1474 | /* This should not be marked tainted if the fp is marked clean */ |
1475 | #define MAYBE_TAINT_LINE(io, sv) \ | |
1476 | if (!(IoFLAGS(io) & IOf_UNTAINT)) { \ | |
1477 | TAINT; \ | |
1478 | SvTAINTED_on(sv); \ | |
1479 | } | |
1480 | ||
684bef36 | 1481 | /* delay EOF state for a snarfed empty file */ |
fbad3eb5 | 1482 | #define SNARF_EOF(gimme,rs,io,sv) \ |
684bef36 | 1483 | (gimme != G_SCALAR || SvCUR(sv) \ |
b9fee9ba | 1484 | || (IoFLAGS(io) & IOf_NOLINE) || !RsSNARF(rs)) |
fbad3eb5 | 1485 | |
a0d0e21e | 1486 | for (;;) { |
fbad3eb5 GS |
1487 | if (!sv_gets(sv, fp, offset) |
1488 | && (type == OP_GLOB || SNARF_EOF(gimme, PL_rs, io, sv))) | |
1489 | { | |
760ac839 | 1490 | PerlIO_clearerr(fp); |
a0d0e21e | 1491 | if (IoFLAGS(io) & IOf_ARGV) { |
3280af22 | 1492 | fp = nextargv(PL_last_in_gv); |
a0d0e21e LW |
1493 | if (fp) |
1494 | continue; | |
3280af22 | 1495 | (void)do_close(PL_last_in_gv, FALSE); |
a0d0e21e LW |
1496 | } |
1497 | else if (type == OP_GLOB) { | |
e476b1b5 GS |
1498 | if (!do_close(PL_last_in_gv, FALSE) && ckWARN(WARN_GLOB)) { |
1499 | Perl_warner(aTHX_ WARN_GLOB, | |
4eb79ab5 | 1500 | "glob failed (child exited with status %d%s)", |
894356b3 | 1501 | (int)(STATUS_CURRENT >> 8), |
cf494569 | 1502 | (STATUS_CURRENT & 0x80) ? ", core dumped" : ""); |
4eb79ab5 | 1503 | } |
a0d0e21e | 1504 | } |
54310121 | 1505 | if (gimme == G_SCALAR) { |
a0d0e21e LW |
1506 | (void)SvOK_off(TARG); |
1507 | PUSHTARG; | |
1508 | } | |
3887d568 | 1509 | MAYBE_TAINT_LINE(io, sv); |
a0d0e21e LW |
1510 | RETURN; |
1511 | } | |
3887d568 | 1512 | MAYBE_TAINT_LINE(io, sv); |
a0d0e21e | 1513 | IoLINES(io)++; |
b9fee9ba | 1514 | IoFLAGS(io) |= IOf_NOLINE; |
71be2cbc | 1515 | SvSETMAGIC(sv); |
a0d0e21e | 1516 | XPUSHs(sv); |
a0d0e21e LW |
1517 | if (type == OP_GLOB) { |
1518 | char *tmps; | |
1519 | ||
3280af22 | 1520 | if (SvCUR(sv) > 0 && SvCUR(PL_rs) > 0) { |
c07a80fd | 1521 | tmps = SvEND(sv) - 1; |
3280af22 | 1522 | if (*tmps == *SvPVX(PL_rs)) { |
c07a80fd | 1523 | *tmps = '\0'; |
1524 | SvCUR(sv)--; | |
1525 | } | |
1526 | } | |
a0d0e21e LW |
1527 | for (tmps = SvPVX(sv); *tmps; tmps++) |
1528 | if (!isALPHA(*tmps) && !isDIGIT(*tmps) && | |
1529 | strchr("$&*(){}[]'\";\\|?<>~`", *tmps)) | |
1530 | break; | |
43384a1a | 1531 | if (*tmps && PerlLIO_lstat(SvPVX(sv), &PL_statbuf) < 0) { |
a0d0e21e LW |
1532 | (void)POPs; /* Unmatched wildcard? Chuck it... */ |
1533 | continue; | |
1534 | } | |
1535 | } | |
54310121 | 1536 | if (gimme == G_ARRAY) { |
a0d0e21e LW |
1537 | if (SvLEN(sv) - SvCUR(sv) > 20) { |
1538 | SvLEN_set(sv, SvCUR(sv)+1); | |
1539 | Renew(SvPVX(sv), SvLEN(sv), char); | |
1540 | } | |
1541 | sv = sv_2mortal(NEWSV(58, 80)); | |
1542 | continue; | |
1543 | } | |
54310121 | 1544 | else if (gimme == G_SCALAR && !tmplen && SvLEN(sv) - SvCUR(sv) > 80) { |
a0d0e21e LW |
1545 | /* try to reclaim a bit of scalar space (only on 1st alloc) */ |
1546 | if (SvCUR(sv) < 60) | |
1547 | SvLEN_set(sv, 80); | |
1548 | else | |
1549 | SvLEN_set(sv, SvCUR(sv)+40); /* allow some slop */ | |
1550 | Renew(SvPVX(sv), SvLEN(sv), char); | |
1551 | } | |
1552 | RETURN; | |
1553 | } | |
1554 | } | |
1555 | ||
1556 | PP(pp_enter) | |
1557 | { | |
4e35701f | 1558 | djSP; |
c09156bb | 1559 | register PERL_CONTEXT *cx; |
533c011a | 1560 | I32 gimme = OP_GIMME(PL_op, -1); |
a0d0e21e | 1561 | |
54310121 | 1562 | if (gimme == -1) { |
1563 | if (cxstack_ix >= 0) | |
1564 | gimme = cxstack[cxstack_ix].blk_gimme; | |
1565 | else | |
1566 | gimme = G_SCALAR; | |
1567 | } | |
a0d0e21e LW |
1568 | |
1569 | ENTER; | |
1570 | ||
1571 | SAVETMPS; | |
924508f0 | 1572 | PUSHBLOCK(cx, CXt_BLOCK, SP); |
a0d0e21e LW |
1573 | |
1574 | RETURN; | |
1575 | } | |
1576 | ||
1577 | PP(pp_helem) | |
1578 | { | |
4e35701f | 1579 | djSP; |
760ac839 | 1580 | HE* he; |
ae77835f | 1581 | SV **svp; |
a0d0e21e | 1582 | SV *keysv = POPs; |
a0d0e21e | 1583 | HV *hv = (HV*)POPs; |
533c011a NIS |
1584 | U32 lval = PL_op->op_flags & OPf_MOD; |
1585 | U32 defer = PL_op->op_private & OPpLVAL_DEFER; | |
be6c24e0 | 1586 | SV *sv; |
1c846c1f | 1587 | U32 hash = (SvFAKE(keysv) && SvREADONLY(keysv)) ? SvUVX(keysv) : 0; |
1f5346dc | 1588 | I32 preeminent; |
a0d0e21e | 1589 | |
ae77835f | 1590 | if (SvTYPE(hv) == SVt_PVHV) { |
1f5346dc SC |
1591 | if (PL_op->op_private & OPpLVAL_INTRO) |
1592 | preeminent = SvRMAGICAL(hv) ? 1 : hv_exists_ent(hv, keysv, 0); | |
1c846c1f | 1593 | he = hv_fetch_ent(hv, keysv, lval && !defer, hash); |
97fcbf96 | 1594 | svp = he ? &HeVAL(he) : 0; |
ae77835f MB |
1595 | } |
1596 | else if (SvTYPE(hv) == SVt_PVAV) { | |
0ebe0038 | 1597 | if (PL_op->op_private & OPpLVAL_INTRO) |
cea2e8a9 | 1598 | DIE(aTHX_ "Can't localize pseudo-hash element"); |
1c846c1f | 1599 | svp = avhv_fetch_ent((AV*)hv, keysv, lval && !defer, hash); |
ae77835f | 1600 | } |
c750a3ec | 1601 | else { |
a0d0e21e | 1602 | RETPUSHUNDEF; |
c750a3ec | 1603 | } |
a0d0e21e | 1604 | if (lval) { |
3280af22 | 1605 | if (!svp || *svp == &PL_sv_undef) { |
68dc0745 | 1606 | SV* lv; |
1607 | SV* key2; | |
2d8e6c8d GS |
1608 | if (!defer) { |
1609 | STRLEN n_a; | |
cea2e8a9 | 1610 | DIE(aTHX_ PL_no_helem, SvPV(keysv, n_a)); |
2d8e6c8d | 1611 | } |
68dc0745 | 1612 | lv = sv_newmortal(); |
1613 | sv_upgrade(lv, SVt_PVLV); | |
1614 | LvTYPE(lv) = 'y'; | |
1615 | sv_magic(lv, key2 = newSVsv(keysv), 'y', Nullch, 0); | |
1616 | SvREFCNT_dec(key2); /* sv_magic() increments refcount */ | |
1617 | LvTARG(lv) = SvREFCNT_inc(hv); | |
1618 | LvTARGLEN(lv) = 1; | |
1619 | PUSHs(lv); | |
1620 | RETURN; | |
1621 | } | |
533c011a | 1622 | if (PL_op->op_private & OPpLVAL_INTRO) { |
ae77835f | 1623 | if (HvNAME(hv) && isGV(*svp)) |
533c011a | 1624 | save_gp((GV*)*svp, !(PL_op->op_flags & OPf_SPECIAL)); |
1f5346dc SC |
1625 | else { |
1626 | if (!preeminent) { | |
1627 | STRLEN keylen; | |
1628 | char *key = SvPV(keysv, keylen); | |
1629 | save_delete(hv, key, keylen); | |
1630 | } else | |
1631 | save_helem(hv, keysv, svp); | |
1632 | } | |
5f05dabc | 1633 | } |
533c011a NIS |
1634 | else if (PL_op->op_private & OPpDEREF) |
1635 | vivify_ref(*svp, PL_op->op_private & OPpDEREF); | |
a0d0e21e | 1636 | } |
3280af22 | 1637 | sv = (svp ? *svp : &PL_sv_undef); |
be6c24e0 GS |
1638 | /* This makes C<local $tied{foo} = $tied{foo}> possible. |
1639 | * Pushing the magical RHS on to the stack is useless, since | |
1640 | * that magic is soon destined to be misled by the local(), | |
1641 | * and thus the later pp_sassign() will fail to mg_get() the | |
1642 | * old value. This should also cure problems with delayed | |
1643 | * mg_get()s. GSAR 98-07-03 */ | |
1644 | if (!lval && SvGMAGICAL(sv)) | |
1645 | sv = sv_mortalcopy(sv); | |
1646 | PUSHs(sv); | |
a0d0e21e LW |
1647 | RETURN; |
1648 | } | |
1649 | ||
1650 | PP(pp_leave) | |
1651 | { | |
4e35701f | 1652 | djSP; |
c09156bb | 1653 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
1654 | register SV **mark; |
1655 | SV **newsp; | |
1656 | PMOP *newpm; | |
1657 | I32 gimme; | |
1658 | ||
533c011a | 1659 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e | 1660 | cx = &cxstack[cxstack_ix]; |
3280af22 | 1661 | cx->blk_oldpm = PL_curpm; /* fake block should preserve $1 et al */ |
a0d0e21e LW |
1662 | } |
1663 | ||
1664 | POPBLOCK(cx,newpm); | |
1665 | ||
533c011a | 1666 | gimme = OP_GIMME(PL_op, -1); |
54310121 | 1667 | if (gimme == -1) { |
1668 | if (cxstack_ix >= 0) | |
1669 | gimme = cxstack[cxstack_ix].blk_gimme; | |
1670 | else | |
1671 | gimme = G_SCALAR; | |
1672 | } | |
a0d0e21e | 1673 | |
a1f49e72 | 1674 | TAINT_NOT; |
54310121 | 1675 | if (gimme == G_VOID) |
1676 | SP = newsp; | |
1677 | else if (gimme == G_SCALAR) { | |
1678 | MARK = newsp + 1; | |
1679 | if (MARK <= SP) | |
1680 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) | |
1681 | *MARK = TOPs; | |
1682 | else | |
1683 | *MARK = sv_mortalcopy(TOPs); | |
a0d0e21e | 1684 | else { |
54310121 | 1685 | MEXTEND(mark,0); |
3280af22 | 1686 | *MARK = &PL_sv_undef; |
a0d0e21e | 1687 | } |
54310121 | 1688 | SP = MARK; |
a0d0e21e | 1689 | } |
54310121 | 1690 | else if (gimme == G_ARRAY) { |
a1f49e72 CS |
1691 | /* in case LEAVE wipes old return values */ |
1692 | for (mark = newsp + 1; mark <= SP; mark++) { | |
1693 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) { | |
a0d0e21e | 1694 | *mark = sv_mortalcopy(*mark); |
a1f49e72 CS |
1695 | TAINT_NOT; /* Each item is independent */ |
1696 | } | |
1697 | } | |
a0d0e21e | 1698 | } |
3280af22 | 1699 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e LW |
1700 | |
1701 | LEAVE; | |
1702 | ||
1703 | RETURN; | |
1704 | } | |
1705 | ||
1706 | PP(pp_iter) | |
1707 | { | |
4e35701f | 1708 | djSP; |
c09156bb | 1709 | register PERL_CONTEXT *cx; |
5f05dabc | 1710 | SV* sv; |
4633a7c4 | 1711 | AV* av; |
1d7c1841 | 1712 | SV **itersvp; |
a0d0e21e | 1713 | |
924508f0 | 1714 | EXTEND(SP, 1); |
a0d0e21e | 1715 | cx = &cxstack[cxstack_ix]; |
6b35e009 | 1716 | if (CxTYPE(cx) != CXt_LOOP) |
cea2e8a9 | 1717 | DIE(aTHX_ "panic: pp_iter"); |
a0d0e21e | 1718 | |
1d7c1841 | 1719 | itersvp = CxITERVAR(cx); |
4633a7c4 | 1720 | av = cx->blk_loop.iterary; |
89ea2908 GA |
1721 | if (SvTYPE(av) != SVt_PVAV) { |
1722 | /* iterate ($min .. $max) */ | |
1723 | if (cx->blk_loop.iterlval) { | |
1724 | /* string increment */ | |
1725 | register SV* cur = cx->blk_loop.iterlval; | |
1726 | STRLEN maxlen; | |
1727 | char *max = SvPV((SV*)av, maxlen); | |
1728 | if (!SvNIOK(cur) && SvCUR(cur) <= maxlen) { | |
eaa5c2d6 | 1729 | #ifndef USE_THREADS /* don't risk potential race */ |
1d7c1841 | 1730 | if (SvREFCNT(*itersvp) == 1 && !SvMAGICAL(*itersvp)) { |
eaa5c2d6 | 1731 | /* safe to reuse old SV */ |
1d7c1841 | 1732 | sv_setsv(*itersvp, cur); |
eaa5c2d6 | 1733 | } |
1c846c1f | 1734 | else |
eaa5c2d6 GA |
1735 | #endif |
1736 | { | |
1737 | /* we need a fresh SV every time so that loop body sees a | |
1738 | * completely new SV for closures/references to work as | |
1739 | * they used to */ | |
1d7c1841 GS |
1740 | SvREFCNT_dec(*itersvp); |
1741 | *itersvp = newSVsv(cur); | |
eaa5c2d6 | 1742 | } |
89ea2908 GA |
1743 | if (strEQ(SvPVX(cur), max)) |
1744 | sv_setiv(cur, 0); /* terminate next time */ | |
1745 | else | |
1746 | sv_inc(cur); | |
1747 | RETPUSHYES; | |
1748 | } | |
1749 | RETPUSHNO; | |
1750 | } | |
1751 | /* integer increment */ | |
1752 | if (cx->blk_loop.iterix > cx->blk_loop.itermax) | |
1753 | RETPUSHNO; | |
7f61b687 | 1754 | |
eaa5c2d6 | 1755 | #ifndef USE_THREADS /* don't risk potential race */ |
1d7c1841 | 1756 | if (SvREFCNT(*itersvp) == 1 && !SvMAGICAL(*itersvp)) { |
eaa5c2d6 | 1757 | /* safe to reuse old SV */ |
1d7c1841 | 1758 | sv_setiv(*itersvp, cx->blk_loop.iterix++); |
eaa5c2d6 | 1759 | } |
1c846c1f | 1760 | else |
eaa5c2d6 GA |
1761 | #endif |
1762 | { | |
1763 | /* we need a fresh SV every time so that loop body sees a | |
1764 | * completely new SV for closures/references to work as they | |
1765 | * used to */ | |
1d7c1841 GS |
1766 | SvREFCNT_dec(*itersvp); |
1767 | *itersvp = newSViv(cx->blk_loop.iterix++); | |
eaa5c2d6 | 1768 | } |
89ea2908 GA |
1769 | RETPUSHYES; |
1770 | } | |
1771 | ||
1772 | /* iterate array */ | |
3280af22 | 1773 | if (cx->blk_loop.iterix >= (av == PL_curstack ? cx->blk_oldsp : AvFILL(av))) |
4633a7c4 | 1774 | RETPUSHNO; |
a0d0e21e | 1775 | |
1d7c1841 | 1776 | SvREFCNT_dec(*itersvp); |
a0d0e21e | 1777 | |
155aba94 | 1778 | if ((sv = SvMAGICAL(av) |
1c846c1f | 1779 | ? *av_fetch(av, ++cx->blk_loop.iterix, FALSE) |
155aba94 | 1780 | : AvARRAY(av)[++cx->blk_loop.iterix])) |
a0d0e21e | 1781 | SvTEMP_off(sv); |
a0d0e21e | 1782 | else |
3280af22 NIS |
1783 | sv = &PL_sv_undef; |
1784 | if (av != PL_curstack && SvIMMORTAL(sv)) { | |
5f05dabc | 1785 | SV *lv = cx->blk_loop.iterlval; |
71be2cbc | 1786 | if (lv && SvREFCNT(lv) > 1) { |
1787 | SvREFCNT_dec(lv); | |
1788 | lv = Nullsv; | |
1789 | } | |
5f05dabc | 1790 | if (lv) |
1791 | SvREFCNT_dec(LvTARG(lv)); | |
1792 | else { | |
68dc0745 | 1793 | lv = cx->blk_loop.iterlval = NEWSV(26, 0); |
5f05dabc | 1794 | sv_upgrade(lv, SVt_PVLV); |
5f05dabc | 1795 | LvTYPE(lv) = 'y'; |
68dc0745 | 1796 | sv_magic(lv, Nullsv, 'y', Nullch, 0); |
5f05dabc | 1797 | } |
1798 | LvTARG(lv) = SvREFCNT_inc(av); | |
1799 | LvTARGOFF(lv) = cx->blk_loop.iterix; | |
42718184 | 1800 | LvTARGLEN(lv) = (STRLEN)UV_MAX; |
5f05dabc | 1801 | sv = (SV*)lv; |
1802 | } | |
a0d0e21e | 1803 | |
1d7c1841 | 1804 | *itersvp = SvREFCNT_inc(sv); |
a0d0e21e LW |
1805 | RETPUSHYES; |
1806 | } | |
1807 | ||
1808 | PP(pp_subst) | |
1809 | { | |
4e35701f | 1810 | djSP; dTARG; |
a0d0e21e LW |
1811 | register PMOP *pm = cPMOP; |
1812 | PMOP *rpm = pm; | |
1813 | register SV *dstr; | |
1814 | register char *s; | |
1815 | char *strend; | |
1816 | register char *m; | |
1817 | char *c; | |
1818 | register char *d; | |
1819 | STRLEN clen; | |
1820 | I32 iters = 0; | |
1821 | I32 maxiters; | |
1822 | register I32 i; | |
1823 | bool once; | |
71be2cbc | 1824 | bool rxtainted; |
a0d0e21e | 1825 | char *orig; |
22e551b9 | 1826 | I32 r_flags; |
d9f97599 | 1827 | register REGEXP *rx = pm->op_pmregexp; |
a0d0e21e LW |
1828 | STRLEN len; |
1829 | int force_on_match = 0; | |
3280af22 | 1830 | I32 oldsave = PL_savestack_ix; |
792b2c16 JH |
1831 | bool do_utf8; |
1832 | STRLEN slen; | |
a0d0e21e | 1833 | |
5cd24f17 | 1834 | /* known replacement string? */ |
1835 | dstr = (pm->op_pmflags & PMf_CONST) ? POPs : Nullsv; | |
533c011a | 1836 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e LW |
1837 | TARG = POPs; |
1838 | else { | |
54b9620d | 1839 | TARG = DEFSV; |
a0d0e21e | 1840 | EXTEND(SP,1); |
1c846c1f | 1841 | } |
ffc61ed2 | 1842 | PL_reg_sv = TARG; |
792b2c16 | 1843 | do_utf8 = DO_UTF8(PL_reg_sv); |
eca06228 NIS |
1844 | if (SvFAKE(TARG) && SvREADONLY(TARG)) |
1845 | sv_force_normal(TARG); | |
68dc0745 | 1846 | if (SvREADONLY(TARG) |
1847 | || (SvTYPE(TARG) > SVt_PVLV | |
1848 | && !(SvTYPE(TARG) == SVt_PVGV && SvFAKE(TARG)))) | |
d470f89e | 1849 | DIE(aTHX_ PL_no_modify); |
8ec5e241 NIS |
1850 | PUTBACK; |
1851 | ||
a0d0e21e | 1852 | s = SvPV(TARG, len); |
68dc0745 | 1853 | if (!SvPOKp(TARG) || SvTYPE(TARG) == SVt_PVGV) |
a0d0e21e | 1854 | force_on_match = 1; |
b3eb6a9b | 1855 | rxtainted = ((pm->op_pmdynflags & PMdf_TAINTED) || |
3280af22 NIS |
1856 | (PL_tainted && (pm->op_pmflags & PMf_RETAINT))); |
1857 | if (PL_tainted) | |
b3eb6a9b | 1858 | rxtainted |= 2; |
9212bbba | 1859 | TAINT_NOT; |
ffc61ed2 | 1860 | |
a0d0e21e LW |
1861 | force_it: |
1862 | if (!pm || !s) | |
2269b42e | 1863 | DIE(aTHX_ "panic: pp_subst"); |
a0d0e21e LW |
1864 | |
1865 | strend = s + len; | |
a7514e1e | 1866 | slen = do_utf8 ? utf8_length((U8*)s, (U8*)strend) : len; |
792b2c16 JH |
1867 | maxiters = 2 * slen + 10; /* We can match twice at each |
1868 | position, once with zero-length, | |
1869 | second time with non-zero. */ | |
a0d0e21e | 1870 | |
3280af22 NIS |
1871 | if (!rx->prelen && PL_curpm) { |
1872 | pm = PL_curpm; | |
d9f97599 | 1873 | rx = pm->op_pmregexp; |
a0d0e21e | 1874 | } |
22e551b9 | 1875 | r_flags = (rx->nparens || SvTEMP(TARG) || PL_sawampersand) |
9d080a66 | 1876 | ? REXEC_COPY_STR : 0; |
f722798b | 1877 | if (SvSCREAM(TARG)) |
22e551b9 | 1878 | r_flags |= REXEC_SCREAM; |
a0d0e21e | 1879 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
3280af22 NIS |
1880 | SAVEINT(PL_multiline); |
1881 | PL_multiline = pm->op_pmflags & PMf_MULTILINE; | |
a0d0e21e LW |
1882 | } |
1883 | orig = m = s; | |
f722798b IZ |
1884 | if (rx->reganch & RE_USE_INTUIT) { |
1885 | s = CALLREG_INTUIT_START(aTHX_ rx, TARG, s, strend, r_flags, NULL); | |
1886 | ||
1887 | if (!s) | |
1888 | goto nope; | |
1889 | /* How to do it in subst? */ | |
1890 | /* if ( (rx->reganch & ROPT_CHECK_ALL) | |
1c846c1f | 1891 | && !PL_sawampersand |
f722798b IZ |
1892 | && ((rx->reganch & ROPT_NOSCAN) |
1893 | || !((rx->reganch & RE_INTUIT_TAIL) | |
1894 | && (r_flags & REXEC_SCREAM)))) | |
1895 | goto yup; | |
1896 | */ | |
a0d0e21e | 1897 | } |
71be2cbc | 1898 | |
1899 | /* only replace once? */ | |
a0d0e21e | 1900 | once = !(rpm->op_pmflags & PMf_GLOBAL); |
71be2cbc | 1901 | |
1902 | /* known replacement string? */ | |
5cd24f17 | 1903 | c = dstr ? SvPV(dstr, clen) : Nullch; |
71be2cbc | 1904 | |
1905 | /* can do inplace substitution? */ | |
22e551b9 | 1906 | if (c && clen <= rx->minlen && (once || !(r_flags & REXEC_COPY_STR)) |
d9f97599 | 1907 | && !(rx->reganch & ROPT_LOOKBEHIND_SEEN)) { |
f722798b IZ |
1908 | if (!CALLREGEXEC(aTHX_ rx, s, strend, orig, 0, TARG, NULL, |
1909 | r_flags | REXEC_CHECKED)) | |
1910 | { | |
8ec5e241 | 1911 | SPAGAIN; |
3280af22 | 1912 | PUSHs(&PL_sv_no); |
71be2cbc | 1913 | LEAVE_SCOPE(oldsave); |
1914 | RETURN; | |
1915 | } | |
1916 | if (force_on_match) { | |
1917 | force_on_match = 0; | |
1918 | s = SvPV_force(TARG, len); | |
1919 | goto force_it; | |
1920 | } | |
71be2cbc | 1921 | d = s; |
3280af22 | 1922 | PL_curpm = pm; |
71be2cbc | 1923 | SvSCREAM_off(TARG); /* disable possible screamer */ |
1924 | if (once) { | |
48c036b1 | 1925 | rxtainted |= RX_MATCH_TAINTED(rx); |
cf93c79d IZ |
1926 | m = orig + rx->startp[0]; |
1927 | d = orig + rx->endp[0]; | |
71be2cbc | 1928 | s = orig; |
1929 | if (m - s > strend - d) { /* faster to shorten from end */ | |
1930 | if (clen) { | |
1931 | Copy(c, m, clen, char); | |
1932 | m += clen; | |
a0d0e21e | 1933 | } |
71be2cbc | 1934 | i = strend - d; |
1935 | if (i > 0) { | |
1936 | Move(d, m, i, char); | |
1937 | m += i; | |
a0d0e21e | 1938 | } |
71be2cbc | 1939 | *m = '\0'; |
1940 | SvCUR_set(TARG, m - s); | |
1941 | } | |
1942 | /*SUPPRESS 560*/ | |
155aba94 | 1943 | else if ((i = m - s)) { /* faster from front */ |
71be2cbc | 1944 | d -= clen; |
1945 | m = d; | |
1946 | sv_chop(TARG, d-i); | |
1947 | s += i; | |
1948 | while (i--) | |
1949 | *--d = *--s; | |
1950 | if (clen) | |
1951 | Copy(c, m, clen, char); | |
1952 | } | |
1953 | else if (clen) { | |
1954 | d -= clen; | |
1955 | sv_chop(TARG, d); | |
1956 | Copy(c, d, clen, char); | |
1957 | } | |
1958 | else { | |
1959 | sv_chop(TARG, d); | |
1960 | } | |
48c036b1 | 1961 | TAINT_IF(rxtainted & 1); |
8ec5e241 | 1962 | SPAGAIN; |
3280af22 | 1963 | PUSHs(&PL_sv_yes); |
71be2cbc | 1964 | } |
1965 | else { | |
71be2cbc | 1966 | do { |
1967 | if (iters++ > maxiters) | |
cea2e8a9 | 1968 | DIE(aTHX_ "Substitution loop"); |
d9f97599 | 1969 | rxtainted |= RX_MATCH_TAINTED(rx); |
cf93c79d | 1970 | m = rx->startp[0] + orig; |
71be2cbc | 1971 | /*SUPPRESS 560*/ |
155aba94 | 1972 | if ((i = m - s)) { |
71be2cbc | 1973 | if (s != d) |
1974 | Move(s, d, i, char); | |
1975 | d += i; | |
a0d0e21e | 1976 | } |
71be2cbc | 1977 | if (clen) { |
1978 | Copy(c, d, clen, char); | |
1979 | d += clen; | |
1980 | } | |
cf93c79d | 1981 | s = rx->endp[0] + orig; |
cea2e8a9 | 1982 | } while (CALLREGEXEC(aTHX_ rx, s, strend, orig, s == m, |
f722798b IZ |
1983 | TARG, NULL, |
1984 | /* don't match same null twice */ | |
1985 | REXEC_NOT_FIRST|REXEC_IGNOREPOS)); | |
71be2cbc | 1986 | if (s != d) { |
1987 | i = strend - s; | |
1988 | SvCUR_set(TARG, d - SvPVX(TARG) + i); | |
1989 | Move(s, d, i+1, char); /* include the NUL */ | |
a0d0e21e | 1990 | } |
48c036b1 | 1991 | TAINT_IF(rxtainted & 1); |
8ec5e241 | 1992 | SPAGAIN; |
71be2cbc | 1993 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
a0d0e21e | 1994 | } |
80b498e0 | 1995 | (void)SvPOK_only_UTF8(TARG); |
48c036b1 | 1996 | TAINT_IF(rxtainted); |
8ec5e241 NIS |
1997 | if (SvSMAGICAL(TARG)) { |
1998 | PUTBACK; | |
1999 | mg_set(TARG); | |
2000 | SPAGAIN; | |
2001 | } | |
9212bbba | 2002 | SvTAINT(TARG); |
71be2cbc | 2003 | LEAVE_SCOPE(oldsave); |
2004 | RETURN; | |
a0d0e21e | 2005 | } |
71be2cbc | 2006 | |
f722798b IZ |
2007 | if (CALLREGEXEC(aTHX_ rx, s, strend, orig, 0, TARG, NULL, |
2008 | r_flags | REXEC_CHECKED)) | |
2009 | { | |
60aeb6fd NIS |
2010 | bool isutf8; |
2011 | ||
a0d0e21e LW |
2012 | if (force_on_match) { |
2013 | force_on_match = 0; | |
2014 | s = SvPV_force(TARG, len); | |
2015 | goto force_it; | |
2016 | } | |
48c036b1 | 2017 | rxtainted |= RX_MATCH_TAINTED(rx); |
8ec5e241 | 2018 | dstr = NEWSV(25, len); |
a0d0e21e | 2019 | sv_setpvn(dstr, m, s-m); |
ffc61ed2 JH |
2020 | if (DO_UTF8(TARG)) |
2021 | SvUTF8_on(dstr); | |
3280af22 | 2022 | PL_curpm = pm; |
a0d0e21e | 2023 | if (!c) { |
c09156bb | 2024 | register PERL_CONTEXT *cx; |
8ec5e241 | 2025 | SPAGAIN; |
a0d0e21e LW |
2026 | PUSHSUBST(cx); |
2027 | RETURNOP(cPMOP->op_pmreplroot); | |
2028 | } | |
cf93c79d | 2029 | r_flags |= REXEC_IGNOREPOS | REXEC_NOT_FIRST; |
a0d0e21e LW |
2030 | do { |
2031 | if (iters++ > maxiters) | |
cea2e8a9 | 2032 | DIE(aTHX_ "Substitution loop"); |
d9f97599 | 2033 | rxtainted |= RX_MATCH_TAINTED(rx); |
cf93c79d | 2034 | if (RX_MATCH_COPIED(rx) && rx->subbeg != orig) { |
a0d0e21e LW |
2035 | m = s; |
2036 | s = orig; | |
cf93c79d | 2037 | orig = rx->subbeg; |
a0d0e21e LW |
2038 | s = orig + (m - s); |
2039 | strend = s + (strend - m); | |
2040 | } | |
cf93c79d | 2041 | m = rx->startp[0] + orig; |
a0d0e21e | 2042 | sv_catpvn(dstr, s, m-s); |
cf93c79d | 2043 | s = rx->endp[0] + orig; |
a0d0e21e LW |
2044 | if (clen) |
2045 | sv_catpvn(dstr, c, clen); | |
2046 | if (once) | |
2047 | break; | |
ffc61ed2 JH |
2048 | } while (CALLREGEXEC(aTHX_ rx, s, strend, orig, s == m, |
2049 | TARG, NULL, r_flags)); | |
a0d0e21e | 2050 | sv_catpvn(dstr, s, strend - s); |
748a9306 | 2051 | |
4633a7c4 | 2052 | (void)SvOOK_off(TARG); |
cb0b1708 | 2053 | Safefree(SvPVX(TARG)); |
748a9306 LW |
2054 | SvPVX(TARG) = SvPVX(dstr); |
2055 | SvCUR_set(TARG, SvCUR(dstr)); | |
2056 | SvLEN_set(TARG, SvLEN(dstr)); | |
60aeb6fd | 2057 | isutf8 = DO_UTF8(dstr); |
748a9306 LW |
2058 | SvPVX(dstr) = 0; |
2059 | sv_free(dstr); | |
2060 | ||
48c036b1 | 2061 | TAINT_IF(rxtainted & 1); |
f878fbec | 2062 | SPAGAIN; |
48c036b1 GS |
2063 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
2064 | ||
a0d0e21e | 2065 | (void)SvPOK_only(TARG); |
60aeb6fd NIS |
2066 | if (isutf8) |
2067 | SvUTF8_on(TARG); | |
48c036b1 | 2068 | TAINT_IF(rxtainted); |
a0d0e21e | 2069 | SvSETMAGIC(TARG); |
9212bbba | 2070 | SvTAINT(TARG); |
4633a7c4 | 2071 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
2072 | RETURN; |
2073 | } | |
5cd24f17 | 2074 | goto ret_no; |
a0d0e21e LW |
2075 | |
2076 | nope: | |
1c846c1f | 2077 | ret_no: |
8ec5e241 | 2078 | SPAGAIN; |
3280af22 | 2079 | PUSHs(&PL_sv_no); |
4633a7c4 | 2080 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
2081 | RETURN; |
2082 | } | |
2083 | ||
2084 | PP(pp_grepwhile) | |
2085 | { | |
4e35701f | 2086 | djSP; |
a0d0e21e LW |
2087 | |
2088 | if (SvTRUEx(POPs)) | |
3280af22 NIS |
2089 | PL_stack_base[PL_markstack_ptr[-1]++] = PL_stack_base[*PL_markstack_ptr]; |
2090 | ++*PL_markstack_ptr; | |
a0d0e21e LW |
2091 | LEAVE; /* exit inner scope */ |
2092 | ||
2093 | /* All done yet? */ | |
3280af22 | 2094 | if (PL_stack_base + *PL_markstack_ptr > SP) { |
a0d0e21e | 2095 | I32 items; |
54310121 | 2096 | I32 gimme = GIMME_V; |
a0d0e21e LW |
2097 | |
2098 | LEAVE; /* exit outer scope */ | |
2099 | (void)POPMARK; /* pop src */ | |
3280af22 | 2100 | items = --*PL_markstack_ptr - PL_markstack_ptr[-1]; |
a0d0e21e | 2101 | (void)POPMARK; /* pop dst */ |
3280af22 | 2102 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
54310121 | 2103 | if (gimme == G_SCALAR) { |
a0d0e21e LW |
2104 | dTARGET; |
2105 | XPUSHi(items); | |
a0d0e21e | 2106 | } |
54310121 | 2107 | else if (gimme == G_ARRAY) |
2108 | SP += items; | |
a0d0e21e LW |
2109 | RETURN; |
2110 | } | |
2111 | else { | |
2112 | SV *src; | |
2113 | ||
2114 | ENTER; /* enter inner scope */ | |
1d7c1841 | 2115 | SAVEVPTR(PL_curpm); |
a0d0e21e | 2116 | |
3280af22 | 2117 | src = PL_stack_base[*PL_markstack_ptr]; |
a0d0e21e | 2118 | SvTEMP_off(src); |
54b9620d | 2119 | DEFSV = src; |
a0d0e21e LW |
2120 | |
2121 | RETURNOP(cLOGOP->op_other); | |
2122 | } | |
2123 | } | |
2124 | ||
2125 | PP(pp_leavesub) | |
2126 | { | |
4e35701f | 2127 | djSP; |
a0d0e21e LW |
2128 | SV **mark; |
2129 | SV **newsp; | |
2130 | PMOP *newpm; | |
2131 | I32 gimme; | |
c09156bb | 2132 | register PERL_CONTEXT *cx; |
b0d9ce38 | 2133 | SV *sv; |
a0d0e21e LW |
2134 | |
2135 | POPBLOCK(cx,newpm); | |
1c846c1f | 2136 | |
a1f49e72 | 2137 | TAINT_NOT; |
a0d0e21e LW |
2138 | if (gimme == G_SCALAR) { |
2139 | MARK = newsp + 1; | |
a29cdaf0 | 2140 | if (MARK <= SP) { |
a8bba7fa | 2141 | if (cx->blk_sub.cv && CvDEPTH(cx->blk_sub.cv) > 1) { |
a29cdaf0 IZ |
2142 | if (SvTEMP(TOPs)) { |
2143 | *MARK = SvREFCNT_inc(TOPs); | |
2144 | FREETMPS; | |
2145 | sv_2mortal(*MARK); | |
cd06dffe GS |
2146 | } |
2147 | else { | |
959e3673 | 2148 | sv = SvREFCNT_inc(TOPs); /* FREETMPS could clobber it */ |
a29cdaf0 | 2149 | FREETMPS; |
959e3673 GS |
2150 | *MARK = sv_mortalcopy(sv); |
2151 | SvREFCNT_dec(sv); | |
a29cdaf0 | 2152 | } |
cd06dffe GS |
2153 | } |
2154 | else | |
a29cdaf0 | 2155 | *MARK = SvTEMP(TOPs) ? TOPs : sv_mortalcopy(TOPs); |
cd06dffe GS |
2156 | } |
2157 | else { | |
f86702cc | 2158 | MEXTEND(MARK, 0); |
3280af22 | 2159 | *MARK = &PL_sv_undef; |
a0d0e21e LW |
2160 | } |
2161 | SP = MARK; | |
2162 | } | |
54310121 | 2163 | else if (gimme == G_ARRAY) { |
f86702cc | 2164 | for (MARK = newsp + 1; MARK <= SP; MARK++) { |
a1f49e72 | 2165 | if (!SvTEMP(*MARK)) { |
f86702cc | 2166 | *MARK = sv_mortalcopy(*MARK); |
a1f49e72 CS |
2167 | TAINT_NOT; /* Each item is independent */ |
2168 | } | |
f86702cc | 2169 | } |
a0d0e21e | 2170 | } |
f86702cc | 2171 | PUTBACK; |
1c846c1f | 2172 | |
b0d9ce38 | 2173 | POPSUB(cx,sv); /* Stack values are safe: release CV and @_ ... */ |
3280af22 | 2174 | PL_curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e LW |
2175 | |
2176 | LEAVE; | |
b0d9ce38 | 2177 | LEAVESUB(sv); |
a0d0e21e LW |
2178 | return pop_return(); |
2179 | } | |
2180 | ||
cd06dffe GS |
2181 | /* This duplicates the above code because the above code must not |
2182 | * get any slower by more conditions */ | |
2183 | PP(pp_leavesublv) | |
2184 | { | |
2185 | djSP; | |
2186 | SV **mark; | |
2187 | SV **newsp; | |
2188 | PMOP *newpm; | |
2189 | I32 gimme; | |
2190 | register PERL_CONTEXT *cx; | |
b0d9ce38 | 2191 | SV *sv; |
cd06dffe GS |
2192 | |
2193 | POPBLOCK(cx,newpm); | |
1c846c1f | 2194 | |
cd06dffe GS |
2195 | TAINT_NOT; |
2196 | ||
2197 | if (cx->blk_sub.lval & OPpENTERSUB_INARGS) { | |
2198 | /* We are an argument to a function or grep(). | |
2199 | * This kind of lvalueness was legal before lvalue | |
2200 | * subroutines too, so be backward compatible: | |
2201 | * cannot report errors. */ | |
2202 | ||
2203 | /* Scalar context *is* possible, on the LHS of -> only, | |
2204 | * as in f()->meth(). But this is not an lvalue. */ | |
2205 | if (gimme == G_SCALAR) | |
2206 | goto temporise; | |
2207 | if (gimme == G_ARRAY) { | |
a8bba7fa | 2208 | if (!CvLVALUE(cx->blk_sub.cv)) |
cd06dffe GS |
2209 | goto temporise_array; |
2210 | EXTEND_MORTAL(SP - newsp); | |
2211 | for (mark = newsp + 1; mark <= SP; mark++) { | |
2212 | if (SvTEMP(*mark)) | |
2213 | /* empty */ ; | |
2214 | else if (SvFLAGS(*mark) & (SVs_PADTMP | SVf_READONLY)) | |
2215 | *mark = sv_mortalcopy(*mark); | |
2216 | else { | |
2217 | /* Can be a localized value subject to deletion. */ | |
2218 | PL_tmps_stack[++PL_tmps_ix] = *mark; | |
e1f15930 | 2219 | (void)SvREFCNT_inc(*mark); |
cd06dffe GS |
2220 | } |
2221 | } | |
2222 | } | |
2223 | } | |
2224 | else if (cx->blk_sub.lval) { /* Leave it as it is if we can. */ | |
2225 | /* Here we go for robustness, not for speed, so we change all | |
2226 | * the refcounts so the caller gets a live guy. Cannot set | |
2227 | * TEMP, so sv_2mortal is out of question. */ | |
a8bba7fa | 2228 | if (!CvLVALUE(cx->blk_sub.cv)) { |
b0d9ce38 | 2229 | POPSUB(cx,sv); |
d470f89e | 2230 | PL_curpm = newpm; |
b0d9ce38 GS |
2231 | LEAVE; |
2232 | LEAVESUB(sv); | |
d470f89e GS |
2233 | DIE(aTHX_ "Can't modify non-lvalue subroutine call"); |
2234 | } | |
cd06dffe GS |
2235 | if (gimme == G_SCALAR) { |
2236 | MARK = newsp + 1; | |
2237 | EXTEND_MORTAL(1); | |
2238 | if (MARK == SP) { | |
d470f89e | 2239 | if (SvFLAGS(TOPs) & (SVs_TEMP | SVs_PADTMP | SVf_READONLY)) { |
b0d9ce38 | 2240 | POPSUB(cx,sv); |
d470f89e | 2241 | PL_curpm = newpm; |
b0d9ce38 GS |
2242 | LEAVE; |
2243 | LEAVESUB(sv); | |
d470f89e | 2244 | DIE(aTHX_ "Can't return a %s from lvalue subroutine", |
cd06dffe | 2245 | SvREADONLY(TOPs) ? "readonly value" : "temporary"); |
d470f89e | 2246 | } |
cd06dffe GS |
2247 | else { /* Can be a localized value |
2248 | * subject to deletion. */ | |
2249 | PL_tmps_stack[++PL_tmps_ix] = *mark; | |
e1f15930 | 2250 | (void)SvREFCNT_inc(*mark); |
cd06dffe GS |
2251 | } |
2252 | } | |
d470f89e | 2253 | else { /* Should not happen? */ |
b0d9ce38 | 2254 | POPSUB(cx,sv); |
d470f89e | 2255 | PL_curpm = newpm; |
b0d9ce38 GS |
2256 | LEAVE; |
2257 | LEAVESUB(sv); | |
d470f89e | 2258 | DIE(aTHX_ "%s returned from lvalue subroutine in scalar context", |
cd06dffe | 2259 | (MARK > SP ? "Empty array" : "Array")); |
d470f89e | 2260 | } |
cd06dffe GS |
2261 | SP = MARK; |
2262 | } | |
2263 | else if (gimme == G_ARRAY) { | |
2264 | EXTEND_MORTAL(SP - newsp); | |
2265 | for (mark = newsp + 1; mark <= SP; mark++) { | |
d470f89e GS |
2266 | if (SvFLAGS(*mark) & (SVs_TEMP | SVs_PADTMP | SVf_READONLY)) { |
2267 | /* Might be flattened array after $#array = */ | |
2268 | PUTBACK; | |
b0d9ce38 | 2269 | POPSUB(cx,sv); |
d470f89e | 2270 | PL_curpm = newpm; |
b0d9ce38 GS |
2271 | LEAVE; |
2272 | LEAVESUB(sv); | |
d470f89e | 2273 | DIE(aTHX_ "Can't return %s from lvalue subroutine", |
cd06dffe GS |
2274 | (*mark != &PL_sv_undef) |
2275 | ? (SvREADONLY(TOPs) | |
2276 | ? "a readonly value" : "a temporary") | |
2277 | : "an uninitialized value"); | |
d470f89e | 2278 | } |
cd06dffe | 2279 | else { |
cd06dffe GS |
2280 | /* Can be a localized value subject to deletion. */ |
2281 | PL_tmps_stack[++PL_tmps_ix] = *mark; | |
e1f15930 | 2282 | (void)SvREFCNT_inc(*mark); |
cd06dffe GS |
2283 | } |
2284 | } | |
2285 | } | |
2286 | } | |
2287 | else { | |
2288 | if (gimme == G_SCALAR) { | |
2289 | temporise: | |
2290 | MARK = newsp + 1; | |
2291 | if (MARK <= SP) { | |
a8bba7fa | 2292 | if (cx->blk_sub.cv && CvDEPTH(cx->blk_sub.cv) > 1) { |
cd06dffe GS |
2293 | if (SvTEMP(TOPs)) { |
2294 | *MARK = SvREFCNT_inc(TOPs); | |
2295 | FREETMPS; | |
2296 | sv_2mortal(*MARK); | |
2297 | } | |
2298 | else { | |
959e3673 | 2299 | sv = SvREFCNT_inc(TOPs); /* FREETMPS could clobber it */ |
cd06dffe | 2300 | FREETMPS; |
959e3673 GS |
2301 | *MARK = sv_mortalcopy(sv); |
2302 | SvREFCNT_dec(sv); | |
cd06dffe GS |
2303 | } |
2304 | } | |
2305 | else | |
2306 | *MARK = SvTEMP(TOPs) ? TOPs : sv_mortalcopy(TOPs); | |
2307 | } | |
2308 | else { | |
2309 | MEXTEND(MARK, 0); | |
2310 | *MARK = &PL_sv_undef; | |
2311 | } | |
2312 | SP = MARK; | |
2313 | } | |
2314 | else if (gimme == G_ARRAY) { | |
2315 | temporise_array: | |
2316 | for (MARK = newsp + 1; MARK <= SP; MARK++) { | |
2317 | if (!SvTEMP(*MARK)) { | |
2318 | *MARK = sv_mortalcopy(*MARK); | |
2319 | TAINT_NOT; /* Each item is independent */ | |
2320 | } | |
2321 | } | |
2322 | } | |
2323 | } | |
2324 | PUTBACK; | |
1c846c1f | 2325 | |
b0d9ce38 | 2326 | POPSUB(cx,sv); /* Stack values are safe: release CV and @_ ... */ |
cd06dffe GS |
2327 | PL_curpm = newpm; /* ... and pop $1 et al */ |
2328 | ||
2329 | LEAVE; | |
b0d9ce38 | 2330 | LEAVESUB(sv); |
cd06dffe GS |
2331 | return pop_return(); |
2332 | } | |
2333 | ||
2334 | ||
76e3520e | 2335 | STATIC CV * |
cea2e8a9 | 2336 | S_get_db_sub(pTHX_ SV **svp, CV *cv) |
3de9ffa1 | 2337 | { |
3280af22 | 2338 | SV *dbsv = GvSV(PL_DBsub); |
491527d0 GS |
2339 | |
2340 | if (!PERLDB_SUB_NN) { | |
2341 | GV *gv = CvGV(cv); | |
2342 | ||
2343 | save_item(dbsv); | |
2344 | if ( (CvFLAGS(cv) & (CVf_ANON | CVf_CLONED)) | |
1c846c1f | 2345 | || strEQ(GvNAME(gv), "END") |
491527d0 GS |
2346 | || ((GvCV(gv) != cv) && /* Could be imported, and old sub redefined. */ |
2347 | !( (SvTYPE(*svp) == SVt_PVGV) && (GvCV((GV*)*svp) == cv) | |
2348 | && (gv = (GV*)*svp) ))) { | |
2349 | /* Use GV from the stack as a fallback. */ | |
2350 | /* GV is potentially non-unique, or contain different CV. */ | |
c2e66d9e GS |
2351 | SV *tmp = newRV((SV*)cv); |
2352 | sv_setsv(dbsv, tmp); | |
2353 | SvREFCNT_dec(tmp); | |
491527d0 GS |
2354 | } |
2355 | else { | |
2356 | gv_efullname3(dbsv, gv, Nullch); | |
2357 | } | |
3de9ffa1 MB |
2358 | } |
2359 | else { | |
155aba94 GS |
2360 | (void)SvUPGRADE(dbsv, SVt_PVIV); |
2361 | (void)SvIOK_on(dbsv); | |
491527d0 | 2362 | SAVEIV(SvIVX(dbsv)); |
5bc28da9 | 2363 | SvIVX(dbsv) = PTR2IV(cv); /* Do it the quickest way */ |
3de9ffa1 | 2364 | } |
491527d0 | 2365 | |
3de9ffa1 | 2366 | if (CvXSUB(cv)) |
3280af22 NIS |
2367 | PL_curcopdb = PL_curcop; |
2368 | cv = GvCV(PL_DBsub); | |
3de9ffa1 MB |
2369 | return cv; |
2370 | } | |
2371 | ||
a0d0e21e LW |
2372 | PP(pp_entersub) |
2373 | { | |
4e35701f | 2374 | djSP; dPOPss; |
a0d0e21e LW |
2375 | GV *gv; |
2376 | HV *stash; | |
2377 | register CV *cv; | |
c09156bb | 2378 | register PERL_CONTEXT *cx; |
5d94fbed | 2379 | I32 gimme; |
533c011a | 2380 | bool hasargs = (PL_op->op_flags & OPf_STACKED) != 0; |
a0d0e21e LW |
2381 | |
2382 | if (!sv) | |
cea2e8a9 | 2383 | DIE(aTHX_ "Not a CODE reference"); |
a0d0e21e LW |
2384 | switch (SvTYPE(sv)) { |
2385 | default: | |
2386 | if (!SvROK(sv)) { | |
748a9306 | 2387 | char *sym; |
2d8e6c8d | 2388 | STRLEN n_a; |
748a9306 | 2389 | |
3280af22 | 2390 | if (sv == &PL_sv_yes) { /* unfound import, ignore */ |
fb73857a | 2391 | if (hasargs) |
3280af22 | 2392 | SP = PL_stack_base + POPMARK; |
a0d0e21e | 2393 | RETURN; |
fb73857a | 2394 | } |
15ff848f CS |
2395 | if (SvGMAGICAL(sv)) { |
2396 | mg_get(sv); | |
2397 | sym = SvPOKp(sv) ? SvPVX(sv) : Nullch; | |
2398 | } | |
2399 | else | |
2d8e6c8d | 2400 | sym = SvPV(sv, n_a); |
15ff848f | 2401 | if (!sym) |
cea2e8a9 | 2402 | DIE(aTHX_ PL_no_usym, "a subroutine"); |
533c011a | 2403 | if (PL_op->op_private & HINT_STRICT_REFS) |
cea2e8a9 | 2404 | DIE(aTHX_ PL_no_symref, sym, "a subroutine"); |
864dbfa3 | 2405 | cv = get_cv(sym, TRUE); |
a0d0e21e LW |
2406 | break; |
2407 | } | |
f5284f61 IZ |
2408 | { |
2409 | SV **sp = &sv; /* Used in tryAMAGICunDEREF macro. */ | |
2410 | tryAMAGICunDEREF(to_cv); | |
2411 | } | |
a0d0e21e LW |
2412 | cv = (CV*)SvRV(sv); |
2413 | if (SvTYPE(cv) == SVt_PVCV) | |
2414 | break; | |
2415 | /* FALL THROUGH */ | |
2416 | case SVt_PVHV: | |
2417 | case SVt_PVAV: | |
cea2e8a9 | 2418 | DIE(aTHX_ "Not a CODE reference"); |
a0d0e21e LW |
2419 | case SVt_PVCV: |
2420 | cv = (CV*)sv; | |
2421 | break; | |
2422 | case SVt_PVGV: | |
8ebc5c01 | 2423 | if (!(cv = GvCVu((GV*)sv))) |
f6ec51f7 GS |
2424 | cv = sv_2cv(sv, &stash, &gv, FALSE); |
2425 | if (!cv) { | |
2426 | ENTER; | |
2427 | SAVETMPS; | |
2428 | goto try_autoload; | |
2429 | } | |
2430 | break; | |
a0d0e21e LW |
2431 | } |
2432 | ||
2433 | ENTER; | |
2434 | SAVETMPS; | |
2435 | ||
2436 | retry: | |
a0d0e21e | 2437 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
44a8e56a | 2438 | GV* autogv; |
22239a37 | 2439 | SV* sub_name; |
44a8e56a | 2440 | |
2441 | /* anonymous or undef'd function leaves us no recourse */ | |
2442 | if (CvANON(cv) || !(gv = CvGV(cv))) | |
cea2e8a9 | 2443 | DIE(aTHX_ "Undefined subroutine called"); |
67caa1fe | 2444 | |
44a8e56a | 2445 | /* autoloaded stub? */ |
2446 | if (cv != GvCV(gv)) { | |
2447 | cv = GvCV(gv); | |
a0d0e21e | 2448 | } |
44a8e56a | 2449 | /* should call AUTOLOAD now? */ |
67caa1fe | 2450 | else { |
f6ec51f7 GS |
2451 | try_autoload: |
2452 | if ((autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), | |
2453 | FALSE))) | |
2454 | { | |
2455 | cv = GvCV(autogv); | |
2456 | } | |
2457 | /* sorry */ | |
2458 | else { | |
2459 | sub_name = sv_newmortal(); | |
2460 | gv_efullname3(sub_name, gv, Nullch); | |
cea2e8a9 | 2461 | DIE(aTHX_ "Undefined subroutine &%s called", SvPVX(sub_name)); |
f6ec51f7 | 2462 | } |
67caa1fe GS |
2463 | } |
2464 | if (!cv) | |
cea2e8a9 | 2465 | DIE(aTHX_ "Not a CODE reference"); |
67caa1fe | 2466 | goto retry; |
a0d0e21e LW |
2467 | } |
2468 | ||
54310121 | 2469 | gimme = GIMME_V; |
67caa1fe | 2470 | if ((PL_op->op_private & OPpENTERSUB_DB) && GvCV(PL_DBsub) && !CvNODEBUG(cv)) { |
4f01c5a5 | 2471 | cv = get_db_sub(&sv, cv); |
67caa1fe | 2472 | if (!cv) |
cea2e8a9 | 2473 | DIE(aTHX_ "No DBsub routine"); |
67caa1fe | 2474 | } |
a0d0e21e | 2475 | |
11343788 | 2476 | #ifdef USE_THREADS |
3de9ffa1 MB |
2477 | /* |
2478 | * First we need to check if the sub or method requires locking. | |
458fb581 MB |
2479 | * If so, we gain a lock on the CV, the first argument or the |
2480 | * stash (for static methods), as appropriate. This has to be | |
2481 | * inline because for FAKE_THREADS, COND_WAIT inlines code to | |
2482 | * reschedule by returning a new op. | |
3de9ffa1 | 2483 | */ |
11343788 | 2484 | MUTEX_LOCK(CvMUTEXP(cv)); |
77a005ab MB |
2485 | if (CvFLAGS(cv) & CVf_LOCKED) { |
2486 | MAGIC *mg; | |
2487 | if (CvFLAGS(cv) & CVf_METHOD) { | |
533c011a NIS |
2488 | if (SP > PL_stack_base + TOPMARK) |
2489 | sv = *(PL_stack_base + TOPMARK + 1); | |
77a005ab | 2490 | else { |
13e08037 GS |
2491 | AV *av = (AV*)PL_curpad[0]; |
2492 | if (hasargs || !av || AvFILLp(av) < 0 | |
2493 | || !(sv = AvARRAY(av)[0])) | |
2494 | { | |
2495 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
d470f89e | 2496 | DIE(aTHX_ "no argument for locked method call"); |
13e08037 | 2497 | } |
77a005ab MB |
2498 | } |
2499 | if (SvROK(sv)) | |
2500 | sv = SvRV(sv); | |
458fb581 MB |
2501 | else { |
2502 | STRLEN len; | |
2503 | char *stashname = SvPV(sv, len); | |
2504 | sv = (SV*)gv_stashpvn(stashname, len, TRUE); | |
2505 | } | |
77a005ab MB |
2506 | } |
2507 | else { | |
2508 | sv = (SV*)cv; | |
2509 | } | |
2510 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
2511 | mg = condpair_magic(sv); | |
2512 | MUTEX_LOCK(MgMUTEXP(mg)); | |
2513 | if (MgOWNER(mg) == thr) | |
2514 | MUTEX_UNLOCK(MgMUTEXP(mg)); | |
2515 | else { | |
2516 | while (MgOWNER(mg)) | |
2517 | COND_WAIT(MgOWNERCONDP(mg), MgMUTEXP(mg)); | |
2518 | MgOWNER(mg) = thr; | |
bf49b057 | 2519 | DEBUG_S(PerlIO_printf(Perl_debug_log, "%p: pp_entersub lock %p\n", |
1fd28e87 | 2520 | thr, sv);) |
77a005ab | 2521 | MUTEX_UNLOCK(MgMUTEXP(mg)); |
c76ac1ee | 2522 | SAVEDESTRUCTOR_X(Perl_unlock_condpair, sv); |
11343788 | 2523 | } |
77a005ab | 2524 | MUTEX_LOCK(CvMUTEXP(cv)); |
11343788 | 2525 | } |
3de9ffa1 MB |
2526 | /* |
2527 | * Now we have permission to enter the sub, we must distinguish | |
2528 | * four cases. (0) It's an XSUB (in which case we don't care | |
2529 | * about ownership); (1) it's ours already (and we're recursing); | |
2530 | * (2) it's free (but we may already be using a cached clone); | |
2531 | * (3) another thread owns it. Case (1) is easy: we just use it. | |
2532 | * Case (2) means we look for a clone--if we have one, use it | |
2533 | * otherwise grab ownership of cv. Case (3) means we look for a | |
2534 | * clone (for non-XSUBs) and have to create one if we don't | |
2535 | * already have one. | |
2536 | * Why look for a clone in case (2) when we could just grab | |
2537 | * ownership of cv straight away? Well, we could be recursing, | |
2538 | * i.e. we originally tried to enter cv while another thread | |
2539 | * owned it (hence we used a clone) but it has been freed up | |
2540 | * and we're now recursing into it. It may or may not be "better" | |
2541 | * to use the clone but at least CvDEPTH can be trusted. | |
2542 | */ | |
2543 | if (CvOWNER(cv) == thr || CvXSUB(cv)) | |
2544 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
11343788 | 2545 | else { |
3de9ffa1 MB |
2546 | /* Case (2) or (3) */ |
2547 | SV **svp; | |
2548 | ||
11343788 | 2549 | /* |
3de9ffa1 MB |
2550 | * XXX Might it be better to release CvMUTEXP(cv) while we |
2551 | * do the hv_fetch? We might find someone has pinched it | |
2552 | * when we look again, in which case we would be in case | |
2553 | * (3) instead of (2) so we'd have to clone. Would the fact | |
2554 | * that we released the mutex more quickly make up for this? | |
2555 | */ | |
b099ddc0 | 2556 | if ((svp = hv_fetch(thr->cvcache, (char *)cv, sizeof(cv), FALSE))) |
6ee623d5 | 2557 | { |
3de9ffa1 | 2558 | /* We already have a clone to use */ |
11343788 | 2559 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
3de9ffa1 | 2560 | cv = *(CV**)svp; |
bf49b057 | 2561 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
1fd28e87 MB |
2562 | "entersub: %p already has clone %p:%s\n", |
2563 | thr, cv, SvPEEK((SV*)cv))); | |
3de9ffa1 MB |
2564 | CvOWNER(cv) = thr; |
2565 | SvREFCNT_inc(cv); | |
2566 | if (CvDEPTH(cv) == 0) | |
c76ac1ee | 2567 | SAVEDESTRUCTOR_X(unset_cvowner, (void*) cv); |
3de9ffa1 | 2568 | } |
11343788 | 2569 | else { |
3de9ffa1 MB |
2570 | /* (2) => grab ownership of cv. (3) => make clone */ |
2571 | if (!CvOWNER(cv)) { | |
2572 | CvOWNER(cv) = thr; | |
2573 | SvREFCNT_inc(cv); | |
11343788 | 2574 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
bf49b057 | 2575 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
1fd28e87 MB |
2576 | "entersub: %p grabbing %p:%s in stash %s\n", |
2577 | thr, cv, SvPEEK((SV*)cv), CvSTASH(cv) ? | |
3de9ffa1 | 2578 | HvNAME(CvSTASH(cv)) : "(none)")); |
cd06dffe GS |
2579 | } |
2580 | else { | |
3de9ffa1 MB |
2581 | /* Make a new clone. */ |
2582 | CV *clonecv; | |
2583 | SvREFCNT_inc(cv); /* don't let it vanish from under us */ | |
2584 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
bf49b057 | 2585 | DEBUG_S((PerlIO_printf(Perl_debug_log, |
1fd28e87 MB |
2586 | "entersub: %p cloning %p:%s\n", |
2587 | thr, cv, SvPEEK((SV*)cv)))); | |
3de9ffa1 MB |
2588 | /* |
2589 | * We're creating a new clone so there's no race | |
2590 | * between the original MUTEX_UNLOCK and the | |
2591 | * SvREFCNT_inc since no one will be trying to undef | |
2592 | * it out from underneath us. At least, I don't think | |
2593 | * there's a race... | |
2594 | */ | |
2595 | clonecv = cv_clone(cv); | |
2596 | SvREFCNT_dec(cv); /* finished with this */ | |
199100c8 | 2597 | hv_store(thr->cvcache, (char*)cv, sizeof(cv), (SV*)clonecv,0); |
3de9ffa1 MB |
2598 | CvOWNER(clonecv) = thr; |
2599 | cv = clonecv; | |
11343788 | 2600 | SvREFCNT_inc(cv); |
11343788 | 2601 | } |
8b73bbec | 2602 | DEBUG_S(if (CvDEPTH(cv) != 0) |
bf49b057 | 2603 | PerlIO_printf(Perl_debug_log, "depth %ld != 0\n", |
3de9ffa1 | 2604 | CvDEPTH(cv));); |
c76ac1ee | 2605 | SAVEDESTRUCTOR_X(unset_cvowner, (void*) cv); |
11343788 | 2606 | } |
3de9ffa1 | 2607 | } |
11343788 MB |
2608 | #endif /* USE_THREADS */ |
2609 | ||
a0d0e21e | 2610 | if (CvXSUB(cv)) { |
67caa1fe | 2611 | #ifdef PERL_XSUB_OLDSTYLE |
a0d0e21e | 2612 | if (CvOLDSTYLE(cv)) { |
20ce7b12 | 2613 | I32 (*fp3)(int,int,int); |
a0d0e21e LW |
2614 | dMARK; |
2615 | register I32 items = SP - MARK; | |
67955e0c | 2616 | /* We dont worry to copy from @_. */ |
924508f0 GS |
2617 | while (SP > mark) { |
2618 | SP[1] = SP[0]; | |
2619 | SP--; | |
a0d0e21e | 2620 | } |
3280af22 | 2621 | PL_stack_sp = mark + 1; |
1d7c1841 | 2622 | fp3 = (I32(*)(int,int,int))CvXSUB(cv); |
1c846c1f | 2623 | items = (*fp3)(CvXSUBANY(cv).any_i32, |
3280af22 | 2624 | MARK - PL_stack_base + 1, |
ecfc5424 | 2625 | items); |
3280af22 | 2626 | PL_stack_sp = PL_stack_base + items; |
a0d0e21e | 2627 | } |
67caa1fe GS |
2628 | else |
2629 | #endif /* PERL_XSUB_OLDSTYLE */ | |
2630 | { | |
748a9306 LW |
2631 | I32 markix = TOPMARK; |
2632 | ||
a0d0e21e | 2633 | PUTBACK; |
67955e0c | 2634 | |
2635 | if (!hasargs) { | |
2636 | /* Need to copy @_ to stack. Alternative may be to | |
2637 | * switch stack to @_, and copy return values | |
2638 | * back. This would allow popping @_ in XSUB, e.g.. XXXX */ | |
6d4ff0d2 MB |
2639 | AV* av; |
2640 | I32 items; | |
2641 | #ifdef USE_THREADS | |
533c011a | 2642 | av = (AV*)PL_curpad[0]; |
6d4ff0d2 | 2643 | #else |
3280af22 | 2644 | av = GvAV(PL_defgv); |
6d4ff0d2 | 2645 | #endif /* USE_THREADS */ |
93965878 | 2646 | items = AvFILLp(av) + 1; /* @_ is not tieable */ |
67955e0c | 2647 | |
2648 | if (items) { | |
2649 | /* Mark is at the end of the stack. */ | |
924508f0 GS |
2650 | EXTEND(SP, items); |
2651 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
2652 | SP += items; | |
1c846c1f | 2653 | PUTBACK ; |
67955e0c | 2654 | } |
2655 | } | |
67caa1fe GS |
2656 | /* We assume first XSUB in &DB::sub is the called one. */ |
2657 | if (PL_curcopdb) { | |
1d7c1841 | 2658 | SAVEVPTR(PL_curcop); |
3280af22 NIS |
2659 | PL_curcop = PL_curcopdb; |
2660 | PL_curcopdb = NULL; | |
67955e0c | 2661 | } |
2662 | /* Do we need to open block here? XXXX */ | |
0cb96387 | 2663 | (void)(*CvXSUB(cv))(aTHXo_ cv); |
748a9306 LW |
2664 | |
2665 | /* Enforce some sanity in scalar context. */ | |
3280af22 NIS |
2666 | if (gimme == G_SCALAR && ++markix != PL_stack_sp - PL_stack_base ) { |
2667 | if (markix > PL_stack_sp - PL_stack_base) | |
2668 | *(PL_stack_base + markix) = &PL_sv_undef; | |
748a9306 | 2669 | else |
3280af22 NIS |
2670 | *(PL_stack_base + markix) = *PL_stack_sp; |
2671 | PL_stack_sp = PL_stack_base + markix; | |
748a9306 | 2672 | } |
a0d0e21e LW |
2673 | } |
2674 | LEAVE; | |
2675 | return NORMAL; | |
2676 | } | |
2677 | else { | |
2678 | dMARK; | |
2679 | register I32 items = SP - MARK; | |
a0d0e21e LW |
2680 | AV* padlist = CvPADLIST(cv); |
2681 | SV** svp = AvARRAY(padlist); | |
533c011a | 2682 | push_return(PL_op->op_next); |
a0d0e21e LW |
2683 | PUSHBLOCK(cx, CXt_SUB, MARK); |
2684 | PUSHSUB(cx); | |
2685 | CvDEPTH(cv)++; | |
6b35e009 GS |
2686 | /* XXX This would be a natural place to set C<PL_compcv = cv> so |
2687 | * that eval'' ops within this sub know the correct lexical space. | |
2688 | * Owing the speed considerations, we choose to search for the cv | |
2689 | * in doeval() instead. | |
2690 | */ | |
a0d0e21e LW |
2691 | if (CvDEPTH(cv) < 2) |
2692 | (void)SvREFCNT_inc(cv); | |
2693 | else { /* save temporaries on recursion? */ | |
1d7c1841 | 2694 | PERL_STACK_OVERFLOW_CHECK(); |
93965878 | 2695 | if (CvDEPTH(cv) > AvFILLp(padlist)) { |
a0d0e21e LW |
2696 | AV *av; |
2697 | AV *newpad = newAV(); | |
4aa0a1f7 | 2698 | SV **oldpad = AvARRAY(svp[CvDEPTH(cv)-1]); |
93965878 | 2699 | I32 ix = AvFILLp((AV*)svp[1]); |
1d7c1841 | 2700 | I32 names_fill = AvFILLp((AV*)svp[0]); |
a0d0e21e | 2701 | svp = AvARRAY(svp[0]); |
748a9306 | 2702 | for ( ;ix > 0; ix--) { |
1d7c1841 | 2703 | if (names_fill >= ix && svp[ix] != &PL_sv_undef) { |
748a9306 | 2704 | char *name = SvPVX(svp[ix]); |
5f05dabc | 2705 | if ((SvFLAGS(svp[ix]) & SVf_FAKE) /* outer lexical? */ |
2706 | || *name == '&') /* anonymous code? */ | |
2707 | { | |
2708 | av_store(newpad, ix, SvREFCNT_inc(oldpad[ix])); | |
748a9306 LW |
2709 | } |
2710 | else { /* our own lexical */ | |
2711 | if (*name == '@') | |
2712 | av_store(newpad, ix, sv = (SV*)newAV()); | |
2713 | else if (*name == '%') | |
2714 | av_store(newpad, ix, sv = (SV*)newHV()); | |
2715 | else | |
2716 | av_store(newpad, ix, sv = NEWSV(0,0)); | |
2717 | SvPADMY_on(sv); | |
2718 | } | |
a0d0e21e | 2719 | } |
1d7c1841 GS |
2720 | else if (IS_PADGV(oldpad[ix]) || IS_PADCONST(oldpad[ix])) { |
2721 | av_store(newpad, ix, sv = SvREFCNT_inc(oldpad[ix])); | |
2722 | } | |
a0d0e21e | 2723 | else { |
748a9306 | 2724 | av_store(newpad, ix, sv = NEWSV(0,0)); |
a0d0e21e LW |
2725 | SvPADTMP_on(sv); |
2726 | } | |
2727 | } | |
2728 | av = newAV(); /* will be @_ */ | |
2729 | av_extend(av, 0); | |
2730 | av_store(newpad, 0, (SV*)av); | |
2731 | AvFLAGS(av) = AVf_REIFY; | |
2732 | av_store(padlist, CvDEPTH(cv), (SV*)newpad); | |
93965878 | 2733 | AvFILLp(padlist) = CvDEPTH(cv); |
a0d0e21e LW |
2734 | svp = AvARRAY(padlist); |
2735 | } | |
2736 | } | |
6d4ff0d2 MB |
2737 | #ifdef USE_THREADS |
2738 | if (!hasargs) { | |
533c011a | 2739 | AV* av = (AV*)PL_curpad[0]; |
6d4ff0d2 | 2740 | |
93965878 | 2741 | items = AvFILLp(av) + 1; |
6d4ff0d2 MB |
2742 | if (items) { |
2743 | /* Mark is at the end of the stack. */ | |
924508f0 GS |
2744 | EXTEND(SP, items); |
2745 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
2746 | SP += items; | |
1c846c1f | 2747 | PUTBACK ; |
6d4ff0d2 MB |
2748 | } |
2749 | } | |
2750 | #endif /* USE_THREADS */ | |
1d7c1841 | 2751 | SAVEVPTR(PL_curpad); |
3280af22 | 2752 | PL_curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]); |
6d4ff0d2 MB |
2753 | #ifndef USE_THREADS |
2754 | if (hasargs) | |
2755 | #endif /* USE_THREADS */ | |
2756 | { | |
2757 | AV* av; | |
a0d0e21e LW |
2758 | SV** ary; |
2759 | ||
77a005ab | 2760 | #if 0 |
bf49b057 | 2761 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
0f15f207 | 2762 | "%p entersub preparing @_\n", thr)); |
77a005ab | 2763 | #endif |
3280af22 | 2764 | av = (AV*)PL_curpad[0]; |
221373f0 GS |
2765 | if (AvREAL(av)) { |
2766 | /* @_ is normally not REAL--this should only ever | |
2767 | * happen when DB::sub() calls things that modify @_ */ | |
2768 | av_clear(av); | |
2769 | AvREAL_off(av); | |
2770 | AvREIFY_on(av); | |
2771 | } | |
6d4ff0d2 | 2772 | #ifndef USE_THREADS |
3280af22 NIS |
2773 | cx->blk_sub.savearray = GvAV(PL_defgv); |
2774 | GvAV(PL_defgv) = (AV*)SvREFCNT_inc(av); | |
6d4ff0d2 | 2775 | #endif /* USE_THREADS */ |
7032098e | 2776 | cx->blk_sub.oldcurpad = PL_curpad; |
6d4ff0d2 | 2777 | cx->blk_sub.argarray = av; |
a0d0e21e LW |
2778 | ++MARK; |
2779 | ||
2780 | if (items > AvMAX(av) + 1) { | |
2781 | ary = AvALLOC(av); | |
2782 | if (AvARRAY(av) != ary) { | |
2783 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); | |
2784 | SvPVX(av) = (char*)ary; | |
2785 | } | |
2786 | if (items > AvMAX(av) + 1) { | |
2787 | AvMAX(av) = items - 1; | |
2788 | Renew(ary,items,SV*); | |
2789 | AvALLOC(av) = ary; | |
2790 | SvPVX(av) = (char*)ary; | |
2791 | } | |
2792 | } | |
2793 | Copy(MARK,AvARRAY(av),items,SV*); | |
93965878 | 2794 | AvFILLp(av) = items - 1; |
1c846c1f | 2795 | |
a0d0e21e LW |
2796 | while (items--) { |
2797 | if (*MARK) | |
2798 | SvTEMP_off(*MARK); | |
2799 | MARK++; | |
2800 | } | |
2801 | } | |
4a925ff6 GS |
2802 | /* warning must come *after* we fully set up the context |
2803 | * stuff so that __WARN__ handlers can safely dounwind() | |
2804 | * if they want to | |
2805 | */ | |
2806 | if (CvDEPTH(cv) == 100 && ckWARN(WARN_RECURSION) | |
2807 | && !(PERLDB_SUB && cv == GvCV(PL_DBsub))) | |
2808 | sub_crush_depth(cv); | |
77a005ab | 2809 | #if 0 |
bf49b057 | 2810 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
0f15f207 | 2811 | "%p entersub returning %p\n", thr, CvSTART(cv))); |
77a005ab | 2812 | #endif |
a0d0e21e LW |
2813 | RETURNOP(CvSTART(cv)); |
2814 | } | |
2815 | } | |
2816 | ||
44a8e56a | 2817 | void |
864dbfa3 | 2818 | Perl_sub_crush_depth(pTHX_ CV *cv) |
44a8e56a | 2819 | { |
2820 | if (CvANON(cv)) | |
cea2e8a9 | 2821 | Perl_warner(aTHX_ WARN_RECURSION, "Deep recursion on anonymous subroutine"); |
44a8e56a | 2822 | else { |
2823 | SV* tmpstr = sv_newmortal(); | |
2824 | gv_efullname3(tmpstr, CvGV(cv), Nullch); | |
1c846c1f | 2825 | Perl_warner(aTHX_ WARN_RECURSION, "Deep recursion on subroutine \"%s\"", |
599cee73 | 2826 | SvPVX(tmpstr)); |
44a8e56a | 2827 | } |
2828 | } | |
2829 | ||
a0d0e21e LW |
2830 | PP(pp_aelem) |
2831 | { | |
4e35701f | 2832 | djSP; |
a0d0e21e | 2833 | SV** svp; |
d804643f SC |
2834 | SV* elemsv = POPs; |
2835 | IV elem = SvIV(elemsv); | |
68dc0745 | 2836 | AV* av = (AV*)POPs; |
533c011a NIS |
2837 | U32 lval = PL_op->op_flags & OPf_MOD; |
2838 | U32 defer = (PL_op->op_private & OPpLVAL_DEFER) && (elem > AvFILL(av)); | |
be6c24e0 | 2839 | SV *sv; |
a0d0e21e | 2840 | |
d804643f SC |
2841 | if (SvROK(elemsv) && ckWARN(WARN_MISC)) |
2842 | Perl_warner(aTHX_ WARN_MISC, "Use of reference \"%s\" as array index", SvPV_nolen(elemsv)); | |
748a9306 | 2843 | if (elem > 0) |
3280af22 | 2844 | elem -= PL_curcop->cop_arybase; |
a0d0e21e LW |
2845 | if (SvTYPE(av) != SVt_PVAV) |
2846 | RETPUSHUNDEF; | |
68dc0745 | 2847 | svp = av_fetch(av, elem, lval && !defer); |
a0d0e21e | 2848 | if (lval) { |
3280af22 | 2849 | if (!svp || *svp == &PL_sv_undef) { |
68dc0745 | 2850 | SV* lv; |
2851 | if (!defer) | |
cea2e8a9 | 2852 | DIE(aTHX_ PL_no_aelem, elem); |
68dc0745 | 2853 | lv = sv_newmortal(); |
2854 | sv_upgrade(lv, SVt_PVLV); | |
2855 | LvTYPE(lv) = 'y'; | |
2856 | sv_magic(lv, Nullsv, 'y', Nullch, 0); | |
2857 | LvTARG(lv) = SvREFCNT_inc(av); | |
2858 | LvTARGOFF(lv) = elem; | |
2859 | LvTARGLEN(lv) = 1; | |
2860 | PUSHs(lv); | |
2861 | RETURN; | |
2862 | } | |
533c011a | 2863 | if (PL_op->op_private & OPpLVAL_INTRO) |
161b7d16 | 2864 | save_aelem(av, elem, svp); |
533c011a NIS |
2865 | else if (PL_op->op_private & OPpDEREF) |
2866 | vivify_ref(*svp, PL_op->op_private & OPpDEREF); | |
a0d0e21e | 2867 | } |
3280af22 | 2868 | sv = (svp ? *svp : &PL_sv_undef); |
be6c24e0 GS |
2869 | if (!lval && SvGMAGICAL(sv)) /* see note in pp_helem() */ |
2870 | sv = sv_mortalcopy(sv); | |
2871 | PUSHs(sv); | |
a0d0e21e LW |
2872 | RETURN; |
2873 | } | |
2874 | ||
02a9e968 | 2875 | void |
864dbfa3 | 2876 | Perl_vivify_ref(pTHX_ SV *sv, U32 to_what) |
02a9e968 CS |
2877 | { |
2878 | if (SvGMAGICAL(sv)) | |
2879 | mg_get(sv); | |
2880 | if (!SvOK(sv)) { | |
2881 | if (SvREADONLY(sv)) | |
cea2e8a9 | 2882 | Perl_croak(aTHX_ PL_no_modify); |
5f05dabc | 2883 | if (SvTYPE(sv) < SVt_RV) |
2884 | sv_upgrade(sv, SVt_RV); | |
2885 | else if (SvTYPE(sv) >= SVt_PV) { | |
2886 | (void)SvOOK_off(sv); | |
2887 | Safefree(SvPVX(sv)); | |
2888 | SvLEN(sv) = SvCUR(sv) = 0; | |
2889 | } | |
68dc0745 | 2890 | switch (to_what) { |
5f05dabc | 2891 | case OPpDEREF_SV: |
8c52afec | 2892 | SvRV(sv) = NEWSV(355,0); |
5f05dabc | 2893 | break; |
2894 | case OPpDEREF_AV: | |
2895 | SvRV(sv) = (SV*)newAV(); | |
2896 | break; | |
2897 | case OPpDEREF_HV: | |
2898 | SvRV(sv) = (SV*)newHV(); | |
2899 | break; | |
2900 | } | |
02a9e968 CS |
2901 | SvROK_on(sv); |
2902 | SvSETMAGIC(sv); | |
2903 | } | |
2904 | } | |
2905 | ||
a0d0e21e LW |
2906 | PP(pp_method) |
2907 | { | |
4e35701f | 2908 | djSP; |
f5d5a27c CS |
2909 | SV* sv = TOPs; |
2910 | ||
2911 | if (SvROK(sv)) { | |
eda383f2 | 2912 | SV* rsv = SvRV(sv); |
f5d5a27c CS |
2913 | if (SvTYPE(rsv) == SVt_PVCV) { |
2914 | SETs(rsv); | |
2915 | RETURN; | |
2916 | } | |
2917 | } | |
2918 | ||
2919 | SETs(method_common(sv, Null(U32*))); | |
2920 | RETURN; | |
2921 | } | |
2922 | ||
2923 | PP(pp_method_named) | |
2924 | { | |
2925 | djSP; | |
2926 | SV* sv = cSVOP->op_sv; | |
2927 | U32 hash = SvUVX(sv); | |
2928 | ||
2929 | XPUSHs(method_common(sv, &hash)); | |
2930 | RETURN; | |
2931 | } | |
2932 | ||
2933 | STATIC SV * | |
2934 | S_method_common(pTHX_ SV* meth, U32* hashp) | |
2935 | { | |
a0d0e21e LW |
2936 | SV* sv; |
2937 | SV* ob; | |
2938 | GV* gv; | |
56304f61 CS |
2939 | HV* stash; |
2940 | char* name; | |
f5d5a27c | 2941 | STRLEN namelen; |
ac91690f CS |
2942 | char* packname; |
2943 | STRLEN packlen; | |
a0d0e21e | 2944 | |
f5d5a27c | 2945 | name = SvPV(meth, namelen); |
3280af22 | 2946 | sv = *(PL_stack_base + TOPMARK + 1); |
f5d5a27c | 2947 | |
4f1b7578 SC |
2948 | if (!sv) |
2949 | Perl_croak(aTHX_ "Can't call method \"%s\" on an undefined value", name); | |
2950 | ||
16d20bd9 AD |
2951 | if (SvGMAGICAL(sv)) |
2952 | mg_get(sv); | |
a0d0e21e | 2953 | if (SvROK(sv)) |
16d20bd9 | 2954 | ob = (SV*)SvRV(sv); |
a0d0e21e LW |
2955 | else { |
2956 | GV* iogv; | |
a0d0e21e | 2957 | |
56304f61 | 2958 | packname = Nullch; |
a0d0e21e | 2959 | if (!SvOK(sv) || |
56304f61 | 2960 | !(packname = SvPV(sv, packlen)) || |
a0d0e21e LW |
2961 | !(iogv = gv_fetchpv(packname, FALSE, SVt_PVIO)) || |
2962 | !(ob=(SV*)GvIO(iogv))) | |
2963 | { | |
1c846c1f | 2964 | if (!packname || |
7e2040f0 | 2965 | ((*(U8*)packname >= 0xc0 && DO_UTF8(sv)) |
b86a2fa7 | 2966 | ? !isIDFIRST_utf8((U8*)packname) |
834a4ddd LW |
2967 | : !isIDFIRST(*packname) |
2968 | )) | |
2969 | { | |
f5d5a27c CS |
2970 | Perl_croak(aTHX_ "Can't call method \"%s\" %s", name, |
2971 | SvOK(sv) ? "without a package or object reference" | |
2972 | : "on an undefined value"); | |
834a4ddd | 2973 | } |
56304f61 | 2974 | stash = gv_stashpvn(packname, packlen, TRUE); |
ac91690f | 2975 | goto fetch; |
a0d0e21e | 2976 | } |
3280af22 | 2977 | *(PL_stack_base + TOPMARK + 1) = sv_2mortal(newRV((SV*)iogv)); |
a0d0e21e LW |
2978 | } |
2979 | ||
f0d43078 GS |
2980 | if (!ob || !(SvOBJECT(ob) |
2981 | || (SvTYPE(ob) == SVt_PVGV && (ob = (SV*)GvIO((GV*)ob)) | |
2982 | && SvOBJECT(ob)))) | |
2983 | { | |
f5d5a27c CS |
2984 | Perl_croak(aTHX_ "Can't call method \"%s\" on unblessed reference", |
2985 | name); | |
f0d43078 | 2986 | } |
a0d0e21e | 2987 | |
56304f61 | 2988 | stash = SvSTASH(ob); |
a0d0e21e | 2989 | |
ac91690f | 2990 | fetch: |
f5d5a27c CS |
2991 | /* shortcut for simple names */ |
2992 | if (hashp) { | |
2993 | HE* he = hv_fetch_ent(stash, meth, 0, *hashp); | |
2994 | if (he) { | |
2995 | gv = (GV*)HeVAL(he); | |
2996 | if (isGV(gv) && GvCV(gv) && | |
2997 | (!GvCVGEN(gv) || GvCVGEN(gv) == PL_sub_generation)) | |
2998 | return (SV*)GvCV(gv); | |
2999 | } | |
3000 | } | |
3001 | ||
ac91690f | 3002 | gv = gv_fetchmethod(stash, name); |
56304f61 CS |
3003 | if (!gv) { |
3004 | char* leaf = name; | |
3005 | char* sep = Nullch; | |
3006 | char* p; | |
c1899e02 | 3007 | GV* gv; |
56304f61 CS |
3008 | |
3009 | for (p = name; *p; p++) { | |
3010 | if (*p == '\'') | |
3011 | sep = p, leaf = p + 1; | |
3012 | else if (*p == ':' && *(p + 1) == ':') | |
3013 | sep = p, leaf = p + 2; | |
3014 | } | |
3015 | if (!sep || ((sep - name) == 5 && strnEQ(name, "SUPER", 5))) { | |
1d7c1841 | 3016 | packname = sep ? CopSTASHPV(PL_curcop) : HvNAME(stash); |
56304f61 CS |
3017 | packlen = strlen(packname); |
3018 | } | |
3019 | else { | |
3020 | packname = name; | |
3021 | packlen = sep - name; | |
3022 | } | |
c1899e02 GS |
3023 | gv = gv_fetchpv(packname, 0, SVt_PVHV); |
3024 | if (gv && isGV(gv)) { | |
3025 | Perl_croak(aTHX_ | |
3026 | "Can't locate object method \"%s\" via package \"%s\"", | |
3027 | leaf, packname); | |
3028 | } | |
3029 | else { | |
3030 | Perl_croak(aTHX_ | |
f6e565ef | 3031 | "Can't locate object method \"%s\" via package \"%s\"" |
c1899e02 GS |
3032 | " (perhaps you forgot to load \"%s\"?)", |
3033 | leaf, packname, packname); | |
3034 | } | |
56304f61 | 3035 | } |
f5d5a27c | 3036 | return isGV(gv) ? (SV*)GvCV(gv) : (SV*)gv; |
a0d0e21e | 3037 | } |
22239a37 | 3038 | |
51371543 GS |
3039 | #ifdef USE_THREADS |
3040 | static void | |
3041 | unset_cvowner(pTHXo_ void *cvarg) | |
3042 | { | |
3043 | register CV* cv = (CV *) cvarg; | |
51371543 | 3044 | |
bf49b057 | 3045 | DEBUG_S((PerlIO_printf(Perl_debug_log, "%p unsetting CvOWNER of %p:%s\n", |
51371543 GS |
3046 | thr, cv, SvPEEK((SV*)cv)))); |
3047 | MUTEX_LOCK(CvMUTEXP(cv)); | |
3048 | DEBUG_S(if (CvDEPTH(cv) != 0) | |
bf49b057 | 3049 | PerlIO_printf(Perl_debug_log, "depth %ld != 0\n", |
51371543 GS |
3050 | CvDEPTH(cv));); |
3051 | assert(thr == CvOWNER(cv)); | |
3052 | CvOWNER(cv) = 0; | |
3053 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
3054 | SvREFCNT_dec(cv); | |
3055 | } | |
3056 | #endif /* USE_THREADS */ |