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; | |
a0d0e21e | 143 | STRLEN len; |
37931a30 | 144 | U8 *s; |
ed646e6e SC |
145 | bool left_utf8; |
146 | bool right_utf8; | |
69b47968 | 147 | |
82f2f503 SC |
148 | if (TARG == right && SvGMAGICAL(right)) |
149 | mg_get(right); | |
150 | if (SvGMAGICAL(left)) | |
151 | mg_get(left); | |
152 | ||
ed646e6e SC |
153 | left_utf8 = DO_UTF8(left); |
154 | right_utf8 = DO_UTF8(right); | |
7889fe52 | 155 | |
ed646e6e SC |
156 | if (left_utf8 != right_utf8) { |
157 | if (TARG == right && !right_utf8) { | |
37931a30 JH |
158 | sv_utf8_upgrade(TARG); /* Now straight binary copy */ |
159 | SvUTF8_on(TARG); | |
160 | } | |
161 | else { | |
162 | /* Set TARG to PV(left), then add right */ | |
163 | U8 *l, *c, *olds = NULL; | |
164 | STRLEN targlen; | |
15bb2692 | 165 | s = (U8*)SvPV(right,len); |
ed646e6e | 166 | right_utf8 |= DO_UTF8(right); |
37931a30 | 167 | if (TARG == right) { |
15bb2692 | 168 | /* Take a copy since we're about to overwrite TARG */ |
b7018214 | 169 | olds = s = (U8*)savepvn((char*)s, len); |
37931a30 | 170 | } |
689440ec | 171 | if (!SvOK(left) && SvTYPE(left) <= SVt_PVMG) { |
905d5022 JH |
172 | if (SvREADONLY(left)) |
173 | left = sv_2mortal(newSVsv(left)); | |
689440ec JH |
174 | else |
175 | sv_setpv(left, ""); /* Suppress warning. */ | |
176 | } | |
37931a30 | 177 | l = (U8*)SvPV(left, targlen); |
ed646e6e | 178 | left_utf8 |= DO_UTF8(left); |
37931a30 JH |
179 | if (TARG != left) |
180 | sv_setpvn(TARG, (char*)l, targlen); | |
ed646e6e | 181 | if (!left_utf8) |
37931a30 JH |
182 | sv_utf8_upgrade(TARG); |
183 | /* Extend TARG to length of right (s) */ | |
184 | targlen = SvCUR(TARG) + len; | |
ed646e6e | 185 | if (!right_utf8) { |
37931a30 | 186 | /* plus one for each hi-byte char if we have to upgrade */ |
15bb2692 | 187 | for (c = s; c < s + len; c++) { |
ed646e6e | 188 | if (UTF8_IS_CONTINUED(*c)) |
37931a30 JH |
189 | targlen++; |
190 | } | |
191 | } | |
192 | SvGROW(TARG, targlen+1); | |
193 | /* And now copy, maybe upgrading right to UTF8 on the fly */ | |
ed646e6e SC |
194 | if (right_utf8) |
195 | Copy(s, SvEND(TARG), len, U8); | |
196 | else { | |
197 | for (c = (U8*)SvEND(TARG); len--; s++) | |
198 | c = uv_to_utf8(c, *s); | |
199 | } | |
37931a30 JH |
200 | SvCUR_set(TARG, targlen); |
201 | *SvEND(TARG) = '\0'; | |
202 | SvUTF8_on(TARG); | |
203 | SETs(TARG); | |
204 | Safefree(olds); | |
205 | RETURN; | |
206 | } | |
207 | } | |
208 | ||
a0d0e21e | 209 | if (TARG != left) { |
37931a30 | 210 | s = (U8*)SvPV(left,len); |
69b47968 | 211 | if (TARG == right) { |
37931a30 | 212 | sv_insert(TARG, 0, 0, (char*)s, len); |
69b47968 GS |
213 | SETs(TARG); |
214 | RETURN; | |
215 | } | |
37931a30 | 216 | sv_setpvn(TARG, (char *)s, len); |
a0d0e21e | 217 | } |
37931a30 | 218 | else if (!SvOK(TARG) && SvTYPE(TARG) <= SVt_PVMG) |
748a9306 | 219 | sv_setpv(TARG, ""); /* Suppress warning. */ |
37931a30 | 220 | s = (U8*)SvPV(right,len); |
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 */ |
ed646e6e | 238 | if (left_utf8) |
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 | } |
f722798b IZ |
1243 | if (rx->reganch & RE_USE_INTUIT) { |
1244 | s = CALLREG_INTUIT_START(aTHX_ rx, TARG, s, strend, r_flags, NULL); | |
1245 | ||
1246 | if (!s) | |
1247 | goto nope; | |
1248 | if ( (rx->reganch & ROPT_CHECK_ALL) | |
1c846c1f | 1249 | && !PL_sawampersand |
f722798b IZ |
1250 | && ((rx->reganch & ROPT_NOSCAN) |
1251 | || !((rx->reganch & RE_INTUIT_TAIL) | |
05b4157f GS |
1252 | && (r_flags & REXEC_SCREAM))) |
1253 | && !SvROK(TARG)) /* Cannot trust since INTUIT cannot guess ^ */ | |
f722798b | 1254 | goto yup; |
a0d0e21e | 1255 | } |
cea2e8a9 | 1256 | if (CALLREGEXEC(aTHX_ rx, s, strend, truebase, minmatch, TARG, NULL, r_flags)) |
bbce6d69 | 1257 | { |
3280af22 | 1258 | PL_curpm = pm; |
a0d0e21e | 1259 | if (pm->op_pmflags & PMf_ONCE) |
48c036b1 | 1260 | pm->op_pmdynflags |= PMdf_USED; |
a0d0e21e LW |
1261 | goto gotcha; |
1262 | } | |
1263 | else | |
1264 | goto ret_no; | |
1265 | /*NOTREACHED*/ | |
1266 | ||
1267 | gotcha: | |
72311751 GS |
1268 | if (rxtainted) |
1269 | RX_MATCH_TAINTED_on(rx); | |
1270 | TAINT_IF(RX_MATCH_TAINTED(rx)); | |
a0d0e21e | 1271 | if (gimme == G_ARRAY) { |
ffc61ed2 | 1272 | I32 nparens, i, len; |
a0d0e21e | 1273 | |
ffc61ed2 JH |
1274 | nparens = rx->nparens; |
1275 | if (global && !nparens) | |
a0d0e21e LW |
1276 | i = 1; |
1277 | else | |
1278 | i = 0; | |
c277df42 | 1279 | SPAGAIN; /* EVAL blocks could move the stack. */ |
ffc61ed2 JH |
1280 | EXTEND(SP, nparens + i); |
1281 | EXTEND_MORTAL(nparens + i); | |
1282 | for (i = !i; i <= nparens; i++) { | |
a0d0e21e LW |
1283 | PUSHs(sv_newmortal()); |
1284 | /*SUPPRESS 560*/ | |
cf93c79d IZ |
1285 | if ((rx->startp[i] != -1) && rx->endp[i] != -1 ) { |
1286 | len = rx->endp[i] - rx->startp[i]; | |
1287 | s = rx->startp[i] + truebase; | |
a0d0e21e | 1288 | sv_setpvn(*SP, s, len); |
ffc61ed2 | 1289 | if (DO_UTF8(TARG)) |
a197cbdd | 1290 | SvUTF8_on(*SP); |
a0d0e21e LW |
1291 | } |
1292 | } | |
1293 | if (global) { | |
cf93c79d IZ |
1294 | had_zerolen = (rx->startp[0] != -1 |
1295 | && rx->startp[0] == rx->endp[0]); | |
c277df42 | 1296 | PUTBACK; /* EVAL blocks may use stack */ |
cf93c79d | 1297 | r_flags |= REXEC_IGNOREPOS | REXEC_NOT_FIRST; |
a0d0e21e LW |
1298 | goto play_it_again; |
1299 | } | |
ffc61ed2 | 1300 | else if (!nparens) |
bde848c5 | 1301 | XPUSHs(&PL_sv_yes); |
4633a7c4 | 1302 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1303 | RETURN; |
1304 | } | |
1305 | else { | |
1306 | if (global) { | |
1307 | MAGIC* mg = 0; | |
1308 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) | |
1309 | mg = mg_find(TARG, 'g'); | |
1310 | if (!mg) { | |
1311 | sv_magic(TARG, (SV*)0, 'g', Nullch, 0); | |
1312 | mg = mg_find(TARG, 'g'); | |
1313 | } | |
cf93c79d IZ |
1314 | if (rx->startp[0] != -1) { |
1315 | mg->mg_len = rx->endp[0]; | |
d9f97599 | 1316 | if (rx->startp[0] == rx->endp[0]) |
748a9306 LW |
1317 | mg->mg_flags |= MGf_MINMATCH; |
1318 | else | |
1319 | mg->mg_flags &= ~MGf_MINMATCH; | |
1320 | } | |
a0d0e21e | 1321 | } |
4633a7c4 | 1322 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1323 | RETPUSHYES; |
1324 | } | |
1325 | ||
f722798b | 1326 | yup: /* Confirmed by INTUIT */ |
72311751 GS |
1327 | if (rxtainted) |
1328 | RX_MATCH_TAINTED_on(rx); | |
1329 | TAINT_IF(RX_MATCH_TAINTED(rx)); | |
3280af22 | 1330 | PL_curpm = pm; |
a0d0e21e | 1331 | if (pm->op_pmflags & PMf_ONCE) |
48c036b1 | 1332 | pm->op_pmdynflags |= PMdf_USED; |
cf93c79d IZ |
1333 | if (RX_MATCH_COPIED(rx)) |
1334 | Safefree(rx->subbeg); | |
1335 | RX_MATCH_COPIED_off(rx); | |
1336 | rx->subbeg = Nullch; | |
a0d0e21e | 1337 | if (global) { |
d9f97599 | 1338 | rx->subbeg = truebase; |
cf93c79d | 1339 | rx->startp[0] = s - truebase; |
f722798b | 1340 | rx->endp[0] = s - truebase + rx->minlen; |
cf93c79d | 1341 | rx->sublen = strend - truebase; |
a0d0e21e | 1342 | goto gotcha; |
1c846c1f | 1343 | } |
3280af22 | 1344 | if (PL_sawampersand) { |
cf93c79d | 1345 | I32 off; |
a0d0e21e | 1346 | |
cf93c79d IZ |
1347 | rx->subbeg = savepvn(t, strend - t); |
1348 | rx->sublen = strend - t; | |
1349 | RX_MATCH_COPIED_on(rx); | |
1350 | off = rx->startp[0] = s - t; | |
f722798b | 1351 | rx->endp[0] = off + rx->minlen; |
cf93c79d IZ |
1352 | } |
1353 | else { /* startp/endp are used by @- @+. */ | |
1354 | rx->startp[0] = s - truebase; | |
f722798b | 1355 | rx->endp[0] = s - truebase + rx->minlen; |
a0d0e21e | 1356 | } |
fc19f8d0 | 1357 | rx->nparens = rx->lastparen = 0; /* used by @- and @+ */ |
4633a7c4 | 1358 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1359 | RETPUSHYES; |
1360 | ||
1361 | nope: | |
a0d0e21e | 1362 | ret_no: |
c90c0ff4 | 1363 | if (global && !(pm->op_pmflags & PMf_CONTINUE)) { |
a0d0e21e LW |
1364 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
1365 | MAGIC* mg = mg_find(TARG, 'g'); | |
1366 | if (mg) | |
565764a8 | 1367 | mg->mg_len = -1; |
a0d0e21e LW |
1368 | } |
1369 | } | |
4633a7c4 | 1370 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1371 | if (gimme == G_ARRAY) |
1372 | RETURN; | |
1373 | RETPUSHNO; | |
1374 | } | |
1375 | ||
1376 | OP * | |
864dbfa3 | 1377 | Perl_do_readline(pTHX) |
a0d0e21e LW |
1378 | { |
1379 | dSP; dTARGETSTACKED; | |
1380 | register SV *sv; | |
1381 | STRLEN tmplen = 0; | |
1382 | STRLEN offset; | |
760ac839 | 1383 | PerlIO *fp; |
3280af22 | 1384 | register IO *io = GvIO(PL_last_in_gv); |
533c011a | 1385 | register I32 type = PL_op->op_type; |
54310121 | 1386 | I32 gimme = GIMME_V; |
e79b0511 | 1387 | MAGIC *mg; |
a0d0e21e | 1388 | |
155aba94 | 1389 | if ((mg = SvTIED_mg((SV*)PL_last_in_gv, 'q'))) { |
e79b0511 | 1390 | PUSHMARK(SP); |
33c27489 | 1391 | XPUSHs(SvTIED_obj((SV*)PL_last_in_gv, mg)); |
e79b0511 | 1392 | PUTBACK; |
1393 | ENTER; | |
864dbfa3 | 1394 | call_method("READLINE", gimme); |
e79b0511 | 1395 | LEAVE; |
1396 | SPAGAIN; | |
54310121 | 1397 | if (gimme == G_SCALAR) |
1398 | SvSetMagicSV_nosteal(TARG, TOPs); | |
e79b0511 | 1399 | RETURN; |
1400 | } | |
a0d0e21e LW |
1401 | fp = Nullfp; |
1402 | if (io) { | |
1403 | fp = IoIFP(io); | |
1404 | if (!fp) { | |
1405 | if (IoFLAGS(io) & IOf_ARGV) { | |
1406 | if (IoFLAGS(io) & IOf_START) { | |
a0d0e21e | 1407 | IoLINES(io) = 0; |
3280af22 | 1408 | if (av_len(GvAVn(PL_last_in_gv)) < 0) { |
1d7c1841 | 1409 | IoFLAGS(io) &= ~IOf_START; |
9d116dd7 | 1410 | do_open(PL_last_in_gv,"-",1,FALSE,O_RDONLY,0,Nullfp); |
3280af22 NIS |
1411 | sv_setpvn(GvSV(PL_last_in_gv), "-", 1); |
1412 | SvSETMAGIC(GvSV(PL_last_in_gv)); | |
a2008d6d GS |
1413 | fp = IoIFP(io); |
1414 | goto have_fp; | |
a0d0e21e LW |
1415 | } |
1416 | } | |
3280af22 | 1417 | fp = nextargv(PL_last_in_gv); |
a0d0e21e | 1418 | if (!fp) { /* Note: fp != IoIFP(io) */ |
3280af22 | 1419 | (void)do_close(PL_last_in_gv, FALSE); /* now it does*/ |
a0d0e21e LW |
1420 | } |
1421 | } | |
0d44d22b NC |
1422 | else if (type == OP_GLOB) |
1423 | fp = Perl_start_glob(aTHX_ POPs, io); | |
a0d0e21e LW |
1424 | } |
1425 | else if (type == OP_GLOB) | |
1426 | SP--; | |
af8c498a | 1427 | else if (ckWARN(WARN_IO) /* stdout/stderr or other write fh */ |
9f37169a | 1428 | && (IoTYPE(io) == IoTYPE_WRONLY || fp == PerlIO_stdout() |
af8c498a | 1429 | || fp == PerlIO_stderr())) |
4c80c0b2 | 1430 | report_evil_fh(PL_last_in_gv, io, OP_phoney_OUTPUT_ONLY); |
a0d0e21e LW |
1431 | } |
1432 | if (!fp) { | |
790090df HS |
1433 | if (ckWARN2(WARN_GLOB, WARN_CLOSED) |
1434 | && (!io || !(IoFLAGS(io) & IOf_START))) { | |
3f4520fe | 1435 | if (type == OP_GLOB) |
e476b1b5 | 1436 | Perl_warner(aTHX_ WARN_GLOB, |
af8c498a GS |
1437 | "glob failed (can't start child: %s)", |
1438 | Strerror(errno)); | |
69282e91 | 1439 | else |
bc37a18f | 1440 | report_evil_fh(PL_last_in_gv, io, PL_op->op_type); |
3f4520fe | 1441 | } |
54310121 | 1442 | if (gimme == G_SCALAR) { |
a0d0e21e LW |
1443 | (void)SvOK_off(TARG); |
1444 | PUSHTARG; | |
1445 | } | |
1446 | RETURN; | |
1447 | } | |
a2008d6d | 1448 | have_fp: |
54310121 | 1449 | if (gimme == G_SCALAR) { |
a0d0e21e | 1450 | sv = TARG; |
9607fc9c | 1451 | if (SvROK(sv)) |
1452 | sv_unref(sv); | |
a0d0e21e LW |
1453 | (void)SvUPGRADE(sv, SVt_PV); |
1454 | tmplen = SvLEN(sv); /* remember if already alloced */ | |
1455 | if (!tmplen) | |
1456 | Sv_Grow(sv, 80); /* try short-buffering it */ | |
1457 | if (type == OP_RCATLINE) | |
1458 | offset = SvCUR(sv); | |
1459 | else | |
1460 | offset = 0; | |
1461 | } | |
54310121 | 1462 | else { |
1463 | sv = sv_2mortal(NEWSV(57, 80)); | |
1464 | offset = 0; | |
1465 | } | |
fbad3eb5 | 1466 | |
3887d568 AP |
1467 | /* This should not be marked tainted if the fp is marked clean */ |
1468 | #define MAYBE_TAINT_LINE(io, sv) \ | |
1469 | if (!(IoFLAGS(io) & IOf_UNTAINT)) { \ | |
1470 | TAINT; \ | |
1471 | SvTAINTED_on(sv); \ | |
1472 | } | |
1473 | ||
684bef36 | 1474 | /* delay EOF state for a snarfed empty file */ |
fbad3eb5 | 1475 | #define SNARF_EOF(gimme,rs,io,sv) \ |
684bef36 | 1476 | (gimme != G_SCALAR || SvCUR(sv) \ |
b9fee9ba | 1477 | || (IoFLAGS(io) & IOf_NOLINE) || !RsSNARF(rs)) |
fbad3eb5 | 1478 | |
a0d0e21e | 1479 | for (;;) { |
fbad3eb5 GS |
1480 | if (!sv_gets(sv, fp, offset) |
1481 | && (type == OP_GLOB || SNARF_EOF(gimme, PL_rs, io, sv))) | |
1482 | { | |
760ac839 | 1483 | PerlIO_clearerr(fp); |
a0d0e21e | 1484 | if (IoFLAGS(io) & IOf_ARGV) { |
3280af22 | 1485 | fp = nextargv(PL_last_in_gv); |
a0d0e21e LW |
1486 | if (fp) |
1487 | continue; | |
3280af22 | 1488 | (void)do_close(PL_last_in_gv, FALSE); |
a0d0e21e LW |
1489 | } |
1490 | else if (type == OP_GLOB) { | |
e476b1b5 GS |
1491 | if (!do_close(PL_last_in_gv, FALSE) && ckWARN(WARN_GLOB)) { |
1492 | Perl_warner(aTHX_ WARN_GLOB, | |
4eb79ab5 | 1493 | "glob failed (child exited with status %d%s)", |
894356b3 | 1494 | (int)(STATUS_CURRENT >> 8), |
cf494569 | 1495 | (STATUS_CURRENT & 0x80) ? ", core dumped" : ""); |
4eb79ab5 | 1496 | } |
a0d0e21e | 1497 | } |
54310121 | 1498 | if (gimme == G_SCALAR) { |
a0d0e21e LW |
1499 | (void)SvOK_off(TARG); |
1500 | PUSHTARG; | |
1501 | } | |
3887d568 | 1502 | MAYBE_TAINT_LINE(io, sv); |
a0d0e21e LW |
1503 | RETURN; |
1504 | } | |
3887d568 | 1505 | MAYBE_TAINT_LINE(io, sv); |
a0d0e21e | 1506 | IoLINES(io)++; |
b9fee9ba | 1507 | IoFLAGS(io) |= IOf_NOLINE; |
71be2cbc | 1508 | SvSETMAGIC(sv); |
a0d0e21e | 1509 | XPUSHs(sv); |
a0d0e21e LW |
1510 | if (type == OP_GLOB) { |
1511 | char *tmps; | |
1512 | ||
3280af22 | 1513 | if (SvCUR(sv) > 0 && SvCUR(PL_rs) > 0) { |
c07a80fd | 1514 | tmps = SvEND(sv) - 1; |
3280af22 | 1515 | if (*tmps == *SvPVX(PL_rs)) { |
c07a80fd | 1516 | *tmps = '\0'; |
1517 | SvCUR(sv)--; | |
1518 | } | |
1519 | } | |
a0d0e21e LW |
1520 | for (tmps = SvPVX(sv); *tmps; tmps++) |
1521 | if (!isALPHA(*tmps) && !isDIGIT(*tmps) && | |
1522 | strchr("$&*(){}[]'\";\\|?<>~`", *tmps)) | |
1523 | break; | |
43384a1a | 1524 | if (*tmps && PerlLIO_lstat(SvPVX(sv), &PL_statbuf) < 0) { |
a0d0e21e LW |
1525 | (void)POPs; /* Unmatched wildcard? Chuck it... */ |
1526 | continue; | |
1527 | } | |
1528 | } | |
54310121 | 1529 | if (gimme == G_ARRAY) { |
a0d0e21e LW |
1530 | if (SvLEN(sv) - SvCUR(sv) > 20) { |
1531 | SvLEN_set(sv, SvCUR(sv)+1); | |
1532 | Renew(SvPVX(sv), SvLEN(sv), char); | |
1533 | } | |
1534 | sv = sv_2mortal(NEWSV(58, 80)); | |
1535 | continue; | |
1536 | } | |
54310121 | 1537 | else if (gimme == G_SCALAR && !tmplen && SvLEN(sv) - SvCUR(sv) > 80) { |
a0d0e21e LW |
1538 | /* try to reclaim a bit of scalar space (only on 1st alloc) */ |
1539 | if (SvCUR(sv) < 60) | |
1540 | SvLEN_set(sv, 80); | |
1541 | else | |
1542 | SvLEN_set(sv, SvCUR(sv)+40); /* allow some slop */ | |
1543 | Renew(SvPVX(sv), SvLEN(sv), char); | |
1544 | } | |
1545 | RETURN; | |
1546 | } | |
1547 | } | |
1548 | ||
1549 | PP(pp_enter) | |
1550 | { | |
4e35701f | 1551 | djSP; |
c09156bb | 1552 | register PERL_CONTEXT *cx; |
533c011a | 1553 | I32 gimme = OP_GIMME(PL_op, -1); |
a0d0e21e | 1554 | |
54310121 | 1555 | if (gimme == -1) { |
1556 | if (cxstack_ix >= 0) | |
1557 | gimme = cxstack[cxstack_ix].blk_gimme; | |
1558 | else | |
1559 | gimme = G_SCALAR; | |
1560 | } | |
a0d0e21e LW |
1561 | |
1562 | ENTER; | |
1563 | ||
1564 | SAVETMPS; | |
924508f0 | 1565 | PUSHBLOCK(cx, CXt_BLOCK, SP); |
a0d0e21e LW |
1566 | |
1567 | RETURN; | |
1568 | } | |
1569 | ||
1570 | PP(pp_helem) | |
1571 | { | |
4e35701f | 1572 | djSP; |
760ac839 | 1573 | HE* he; |
ae77835f | 1574 | SV **svp; |
a0d0e21e | 1575 | SV *keysv = POPs; |
a0d0e21e | 1576 | HV *hv = (HV*)POPs; |
533c011a NIS |
1577 | U32 lval = PL_op->op_flags & OPf_MOD; |
1578 | U32 defer = PL_op->op_private & OPpLVAL_DEFER; | |
be6c24e0 | 1579 | SV *sv; |
1c846c1f | 1580 | U32 hash = (SvFAKE(keysv) && SvREADONLY(keysv)) ? SvUVX(keysv) : 0; |
1f5346dc | 1581 | I32 preeminent; |
a0d0e21e | 1582 | |
ae77835f | 1583 | if (SvTYPE(hv) == SVt_PVHV) { |
1f5346dc SC |
1584 | if (PL_op->op_private & OPpLVAL_INTRO) |
1585 | preeminent = SvRMAGICAL(hv) ? 1 : hv_exists_ent(hv, keysv, 0); | |
1c846c1f | 1586 | he = hv_fetch_ent(hv, keysv, lval && !defer, hash); |
97fcbf96 | 1587 | svp = he ? &HeVAL(he) : 0; |
ae77835f MB |
1588 | } |
1589 | else if (SvTYPE(hv) == SVt_PVAV) { | |
0ebe0038 | 1590 | if (PL_op->op_private & OPpLVAL_INTRO) |
cea2e8a9 | 1591 | DIE(aTHX_ "Can't localize pseudo-hash element"); |
1c846c1f | 1592 | svp = avhv_fetch_ent((AV*)hv, keysv, lval && !defer, hash); |
ae77835f | 1593 | } |
c750a3ec | 1594 | else { |
a0d0e21e | 1595 | RETPUSHUNDEF; |
c750a3ec | 1596 | } |
a0d0e21e | 1597 | if (lval) { |
3280af22 | 1598 | if (!svp || *svp == &PL_sv_undef) { |
68dc0745 | 1599 | SV* lv; |
1600 | SV* key2; | |
2d8e6c8d GS |
1601 | if (!defer) { |
1602 | STRLEN n_a; | |
cea2e8a9 | 1603 | DIE(aTHX_ PL_no_helem, SvPV(keysv, n_a)); |
2d8e6c8d | 1604 | } |
68dc0745 | 1605 | lv = sv_newmortal(); |
1606 | sv_upgrade(lv, SVt_PVLV); | |
1607 | LvTYPE(lv) = 'y'; | |
1608 | sv_magic(lv, key2 = newSVsv(keysv), 'y', Nullch, 0); | |
1609 | SvREFCNT_dec(key2); /* sv_magic() increments refcount */ | |
1610 | LvTARG(lv) = SvREFCNT_inc(hv); | |
1611 | LvTARGLEN(lv) = 1; | |
1612 | PUSHs(lv); | |
1613 | RETURN; | |
1614 | } | |
533c011a | 1615 | if (PL_op->op_private & OPpLVAL_INTRO) { |
ae77835f | 1616 | if (HvNAME(hv) && isGV(*svp)) |
533c011a | 1617 | save_gp((GV*)*svp, !(PL_op->op_flags & OPf_SPECIAL)); |
1f5346dc SC |
1618 | else { |
1619 | if (!preeminent) { | |
1620 | STRLEN keylen; | |
1621 | char *key = SvPV(keysv, keylen); | |
1622 | save_delete(hv, key, keylen); | |
1623 | } else | |
1624 | save_helem(hv, keysv, svp); | |
1625 | } | |
5f05dabc | 1626 | } |
533c011a NIS |
1627 | else if (PL_op->op_private & OPpDEREF) |
1628 | vivify_ref(*svp, PL_op->op_private & OPpDEREF); | |
a0d0e21e | 1629 | } |
3280af22 | 1630 | sv = (svp ? *svp : &PL_sv_undef); |
be6c24e0 GS |
1631 | /* This makes C<local $tied{foo} = $tied{foo}> possible. |
1632 | * Pushing the magical RHS on to the stack is useless, since | |
1633 | * that magic is soon destined to be misled by the local(), | |
1634 | * and thus the later pp_sassign() will fail to mg_get() the | |
1635 | * old value. This should also cure problems with delayed | |
1636 | * mg_get()s. GSAR 98-07-03 */ | |
1637 | if (!lval && SvGMAGICAL(sv)) | |
1638 | sv = sv_mortalcopy(sv); | |
1639 | PUSHs(sv); | |
a0d0e21e LW |
1640 | RETURN; |
1641 | } | |
1642 | ||
1643 | PP(pp_leave) | |
1644 | { | |
4e35701f | 1645 | djSP; |
c09156bb | 1646 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
1647 | register SV **mark; |
1648 | SV **newsp; | |
1649 | PMOP *newpm; | |
1650 | I32 gimme; | |
1651 | ||
533c011a | 1652 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e | 1653 | cx = &cxstack[cxstack_ix]; |
3280af22 | 1654 | cx->blk_oldpm = PL_curpm; /* fake block should preserve $1 et al */ |
a0d0e21e LW |
1655 | } |
1656 | ||
1657 | POPBLOCK(cx,newpm); | |
1658 | ||
533c011a | 1659 | gimme = OP_GIMME(PL_op, -1); |
54310121 | 1660 | if (gimme == -1) { |
1661 | if (cxstack_ix >= 0) | |
1662 | gimme = cxstack[cxstack_ix].blk_gimme; | |
1663 | else | |
1664 | gimme = G_SCALAR; | |
1665 | } | |
a0d0e21e | 1666 | |
a1f49e72 | 1667 | TAINT_NOT; |
54310121 | 1668 | if (gimme == G_VOID) |
1669 | SP = newsp; | |
1670 | else if (gimme == G_SCALAR) { | |
1671 | MARK = newsp + 1; | |
1672 | if (MARK <= SP) | |
1673 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) | |
1674 | *MARK = TOPs; | |
1675 | else | |
1676 | *MARK = sv_mortalcopy(TOPs); | |
a0d0e21e | 1677 | else { |
54310121 | 1678 | MEXTEND(mark,0); |
3280af22 | 1679 | *MARK = &PL_sv_undef; |
a0d0e21e | 1680 | } |
54310121 | 1681 | SP = MARK; |
a0d0e21e | 1682 | } |
54310121 | 1683 | else if (gimme == G_ARRAY) { |
a1f49e72 CS |
1684 | /* in case LEAVE wipes old return values */ |
1685 | for (mark = newsp + 1; mark <= SP; mark++) { | |
1686 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) { | |
a0d0e21e | 1687 | *mark = sv_mortalcopy(*mark); |
a1f49e72 CS |
1688 | TAINT_NOT; /* Each item is independent */ |
1689 | } | |
1690 | } | |
a0d0e21e | 1691 | } |
3280af22 | 1692 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e LW |
1693 | |
1694 | LEAVE; | |
1695 | ||
1696 | RETURN; | |
1697 | } | |
1698 | ||
1699 | PP(pp_iter) | |
1700 | { | |
4e35701f | 1701 | djSP; |
c09156bb | 1702 | register PERL_CONTEXT *cx; |
5f05dabc | 1703 | SV* sv; |
4633a7c4 | 1704 | AV* av; |
1d7c1841 | 1705 | SV **itersvp; |
a0d0e21e | 1706 | |
924508f0 | 1707 | EXTEND(SP, 1); |
a0d0e21e | 1708 | cx = &cxstack[cxstack_ix]; |
6b35e009 | 1709 | if (CxTYPE(cx) != CXt_LOOP) |
cea2e8a9 | 1710 | DIE(aTHX_ "panic: pp_iter"); |
a0d0e21e | 1711 | |
1d7c1841 | 1712 | itersvp = CxITERVAR(cx); |
4633a7c4 | 1713 | av = cx->blk_loop.iterary; |
89ea2908 GA |
1714 | if (SvTYPE(av) != SVt_PVAV) { |
1715 | /* iterate ($min .. $max) */ | |
1716 | if (cx->blk_loop.iterlval) { | |
1717 | /* string increment */ | |
1718 | register SV* cur = cx->blk_loop.iterlval; | |
1719 | STRLEN maxlen; | |
1720 | char *max = SvPV((SV*)av, maxlen); | |
1721 | if (!SvNIOK(cur) && SvCUR(cur) <= maxlen) { | |
eaa5c2d6 | 1722 | #ifndef USE_THREADS /* don't risk potential race */ |
1d7c1841 | 1723 | if (SvREFCNT(*itersvp) == 1 && !SvMAGICAL(*itersvp)) { |
eaa5c2d6 | 1724 | /* safe to reuse old SV */ |
1d7c1841 | 1725 | sv_setsv(*itersvp, cur); |
eaa5c2d6 | 1726 | } |
1c846c1f | 1727 | else |
eaa5c2d6 GA |
1728 | #endif |
1729 | { | |
1730 | /* we need a fresh SV every time so that loop body sees a | |
1731 | * completely new SV for closures/references to work as | |
1732 | * they used to */ | |
1d7c1841 GS |
1733 | SvREFCNT_dec(*itersvp); |
1734 | *itersvp = newSVsv(cur); | |
eaa5c2d6 | 1735 | } |
89ea2908 GA |
1736 | if (strEQ(SvPVX(cur), max)) |
1737 | sv_setiv(cur, 0); /* terminate next time */ | |
1738 | else | |
1739 | sv_inc(cur); | |
1740 | RETPUSHYES; | |
1741 | } | |
1742 | RETPUSHNO; | |
1743 | } | |
1744 | /* integer increment */ | |
1745 | if (cx->blk_loop.iterix > cx->blk_loop.itermax) | |
1746 | RETPUSHNO; | |
7f61b687 | 1747 | |
eaa5c2d6 | 1748 | #ifndef USE_THREADS /* don't risk potential race */ |
1d7c1841 | 1749 | if (SvREFCNT(*itersvp) == 1 && !SvMAGICAL(*itersvp)) { |
eaa5c2d6 | 1750 | /* safe to reuse old SV */ |
1d7c1841 | 1751 | sv_setiv(*itersvp, cx->blk_loop.iterix++); |
eaa5c2d6 | 1752 | } |
1c846c1f | 1753 | else |
eaa5c2d6 GA |
1754 | #endif |
1755 | { | |
1756 | /* we need a fresh SV every time so that loop body sees a | |
1757 | * completely new SV for closures/references to work as they | |
1758 | * used to */ | |
1d7c1841 GS |
1759 | SvREFCNT_dec(*itersvp); |
1760 | *itersvp = newSViv(cx->blk_loop.iterix++); | |
eaa5c2d6 | 1761 | } |
89ea2908 GA |
1762 | RETPUSHYES; |
1763 | } | |
1764 | ||
1765 | /* iterate array */ | |
3280af22 | 1766 | if (cx->blk_loop.iterix >= (av == PL_curstack ? cx->blk_oldsp : AvFILL(av))) |
4633a7c4 | 1767 | RETPUSHNO; |
a0d0e21e | 1768 | |
1d7c1841 | 1769 | SvREFCNT_dec(*itersvp); |
a0d0e21e | 1770 | |
155aba94 | 1771 | if ((sv = SvMAGICAL(av) |
1c846c1f | 1772 | ? *av_fetch(av, ++cx->blk_loop.iterix, FALSE) |
155aba94 | 1773 | : AvARRAY(av)[++cx->blk_loop.iterix])) |
a0d0e21e | 1774 | SvTEMP_off(sv); |
a0d0e21e | 1775 | else |
3280af22 NIS |
1776 | sv = &PL_sv_undef; |
1777 | if (av != PL_curstack && SvIMMORTAL(sv)) { | |
5f05dabc | 1778 | SV *lv = cx->blk_loop.iterlval; |
71be2cbc | 1779 | if (lv && SvREFCNT(lv) > 1) { |
1780 | SvREFCNT_dec(lv); | |
1781 | lv = Nullsv; | |
1782 | } | |
5f05dabc | 1783 | if (lv) |
1784 | SvREFCNT_dec(LvTARG(lv)); | |
1785 | else { | |
68dc0745 | 1786 | lv = cx->blk_loop.iterlval = NEWSV(26, 0); |
5f05dabc | 1787 | sv_upgrade(lv, SVt_PVLV); |
5f05dabc | 1788 | LvTYPE(lv) = 'y'; |
68dc0745 | 1789 | sv_magic(lv, Nullsv, 'y', Nullch, 0); |
5f05dabc | 1790 | } |
1791 | LvTARG(lv) = SvREFCNT_inc(av); | |
1792 | LvTARGOFF(lv) = cx->blk_loop.iterix; | |
42718184 | 1793 | LvTARGLEN(lv) = (STRLEN)UV_MAX; |
5f05dabc | 1794 | sv = (SV*)lv; |
1795 | } | |
a0d0e21e | 1796 | |
1d7c1841 | 1797 | *itersvp = SvREFCNT_inc(sv); |
a0d0e21e LW |
1798 | RETPUSHYES; |
1799 | } | |
1800 | ||
1801 | PP(pp_subst) | |
1802 | { | |
4e35701f | 1803 | djSP; dTARG; |
a0d0e21e LW |
1804 | register PMOP *pm = cPMOP; |
1805 | PMOP *rpm = pm; | |
1806 | register SV *dstr; | |
1807 | register char *s; | |
1808 | char *strend; | |
1809 | register char *m; | |
1810 | char *c; | |
1811 | register char *d; | |
1812 | STRLEN clen; | |
1813 | I32 iters = 0; | |
1814 | I32 maxiters; | |
1815 | register I32 i; | |
1816 | bool once; | |
71be2cbc | 1817 | bool rxtainted; |
a0d0e21e | 1818 | char *orig; |
22e551b9 | 1819 | I32 r_flags; |
d9f97599 | 1820 | register REGEXP *rx = pm->op_pmregexp; |
a0d0e21e LW |
1821 | STRLEN len; |
1822 | int force_on_match = 0; | |
3280af22 | 1823 | I32 oldsave = PL_savestack_ix; |
792b2c16 JH |
1824 | bool do_utf8; |
1825 | STRLEN slen; | |
a0d0e21e | 1826 | |
5cd24f17 | 1827 | /* known replacement string? */ |
1828 | dstr = (pm->op_pmflags & PMf_CONST) ? POPs : Nullsv; | |
533c011a | 1829 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e LW |
1830 | TARG = POPs; |
1831 | else { | |
54b9620d | 1832 | TARG = DEFSV; |
a0d0e21e | 1833 | EXTEND(SP,1); |
1c846c1f | 1834 | } |
ffc61ed2 | 1835 | PL_reg_sv = TARG; |
792b2c16 | 1836 | do_utf8 = DO_UTF8(PL_reg_sv); |
eca06228 NIS |
1837 | if (SvFAKE(TARG) && SvREADONLY(TARG)) |
1838 | sv_force_normal(TARG); | |
68dc0745 | 1839 | if (SvREADONLY(TARG) |
1840 | || (SvTYPE(TARG) > SVt_PVLV | |
1841 | && !(SvTYPE(TARG) == SVt_PVGV && SvFAKE(TARG)))) | |
d470f89e | 1842 | DIE(aTHX_ PL_no_modify); |
8ec5e241 NIS |
1843 | PUTBACK; |
1844 | ||
a0d0e21e | 1845 | s = SvPV(TARG, len); |
68dc0745 | 1846 | if (!SvPOKp(TARG) || SvTYPE(TARG) == SVt_PVGV) |
a0d0e21e | 1847 | force_on_match = 1; |
b3eb6a9b | 1848 | rxtainted = ((pm->op_pmdynflags & PMdf_TAINTED) || |
3280af22 NIS |
1849 | (PL_tainted && (pm->op_pmflags & PMf_RETAINT))); |
1850 | if (PL_tainted) | |
b3eb6a9b | 1851 | rxtainted |= 2; |
9212bbba | 1852 | TAINT_NOT; |
ffc61ed2 | 1853 | |
a0d0e21e LW |
1854 | force_it: |
1855 | if (!pm || !s) | |
2269b42e | 1856 | DIE(aTHX_ "panic: pp_subst"); |
a0d0e21e LW |
1857 | |
1858 | strend = s + len; | |
a7514e1e | 1859 | slen = do_utf8 ? utf8_length((U8*)s, (U8*)strend) : len; |
792b2c16 JH |
1860 | maxiters = 2 * slen + 10; /* We can match twice at each |
1861 | position, once with zero-length, | |
1862 | second time with non-zero. */ | |
a0d0e21e | 1863 | |
3280af22 NIS |
1864 | if (!rx->prelen && PL_curpm) { |
1865 | pm = PL_curpm; | |
d9f97599 | 1866 | rx = pm->op_pmregexp; |
a0d0e21e | 1867 | } |
22e551b9 | 1868 | r_flags = (rx->nparens || SvTEMP(TARG) || PL_sawampersand) |
9d080a66 | 1869 | ? REXEC_COPY_STR : 0; |
f722798b | 1870 | if (SvSCREAM(TARG)) |
22e551b9 | 1871 | r_flags |= REXEC_SCREAM; |
a0d0e21e | 1872 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
3280af22 NIS |
1873 | SAVEINT(PL_multiline); |
1874 | PL_multiline = pm->op_pmflags & PMf_MULTILINE; | |
a0d0e21e LW |
1875 | } |
1876 | orig = m = s; | |
f722798b IZ |
1877 | if (rx->reganch & RE_USE_INTUIT) { |
1878 | s = CALLREG_INTUIT_START(aTHX_ rx, TARG, s, strend, r_flags, NULL); | |
1879 | ||
1880 | if (!s) | |
1881 | goto nope; | |
1882 | /* How to do it in subst? */ | |
1883 | /* if ( (rx->reganch & ROPT_CHECK_ALL) | |
1c846c1f | 1884 | && !PL_sawampersand |
f722798b IZ |
1885 | && ((rx->reganch & ROPT_NOSCAN) |
1886 | || !((rx->reganch & RE_INTUIT_TAIL) | |
1887 | && (r_flags & REXEC_SCREAM)))) | |
1888 | goto yup; | |
1889 | */ | |
a0d0e21e | 1890 | } |
71be2cbc | 1891 | |
1892 | /* only replace once? */ | |
a0d0e21e | 1893 | once = !(rpm->op_pmflags & PMf_GLOBAL); |
71be2cbc | 1894 | |
1895 | /* known replacement string? */ | |
5cd24f17 | 1896 | c = dstr ? SvPV(dstr, clen) : Nullch; |
71be2cbc | 1897 | |
1898 | /* can do inplace substitution? */ | |
22e551b9 | 1899 | if (c && clen <= rx->minlen && (once || !(r_flags & REXEC_COPY_STR)) |
d9f97599 | 1900 | && !(rx->reganch & ROPT_LOOKBEHIND_SEEN)) { |
f722798b IZ |
1901 | if (!CALLREGEXEC(aTHX_ rx, s, strend, orig, 0, TARG, NULL, |
1902 | r_flags | REXEC_CHECKED)) | |
1903 | { | |
8ec5e241 | 1904 | SPAGAIN; |
3280af22 | 1905 | PUSHs(&PL_sv_no); |
71be2cbc | 1906 | LEAVE_SCOPE(oldsave); |
1907 | RETURN; | |
1908 | } | |
1909 | if (force_on_match) { | |
1910 | force_on_match = 0; | |
1911 | s = SvPV_force(TARG, len); | |
1912 | goto force_it; | |
1913 | } | |
71be2cbc | 1914 | d = s; |
3280af22 | 1915 | PL_curpm = pm; |
71be2cbc | 1916 | SvSCREAM_off(TARG); /* disable possible screamer */ |
1917 | if (once) { | |
48c036b1 | 1918 | rxtainted |= RX_MATCH_TAINTED(rx); |
cf93c79d IZ |
1919 | m = orig + rx->startp[0]; |
1920 | d = orig + rx->endp[0]; | |
71be2cbc | 1921 | s = orig; |
1922 | if (m - s > strend - d) { /* faster to shorten from end */ | |
1923 | if (clen) { | |
1924 | Copy(c, m, clen, char); | |
1925 | m += clen; | |
a0d0e21e | 1926 | } |
71be2cbc | 1927 | i = strend - d; |
1928 | if (i > 0) { | |
1929 | Move(d, m, i, char); | |
1930 | m += i; | |
a0d0e21e | 1931 | } |
71be2cbc | 1932 | *m = '\0'; |
1933 | SvCUR_set(TARG, m - s); | |
1934 | } | |
1935 | /*SUPPRESS 560*/ | |
155aba94 | 1936 | else if ((i = m - s)) { /* faster from front */ |
71be2cbc | 1937 | d -= clen; |
1938 | m = d; | |
1939 | sv_chop(TARG, d-i); | |
1940 | s += i; | |
1941 | while (i--) | |
1942 | *--d = *--s; | |
1943 | if (clen) | |
1944 | Copy(c, m, clen, char); | |
1945 | } | |
1946 | else if (clen) { | |
1947 | d -= clen; | |
1948 | sv_chop(TARG, d); | |
1949 | Copy(c, d, clen, char); | |
1950 | } | |
1951 | else { | |
1952 | sv_chop(TARG, d); | |
1953 | } | |
48c036b1 | 1954 | TAINT_IF(rxtainted & 1); |
8ec5e241 | 1955 | SPAGAIN; |
3280af22 | 1956 | PUSHs(&PL_sv_yes); |
71be2cbc | 1957 | } |
1958 | else { | |
71be2cbc | 1959 | do { |
1960 | if (iters++ > maxiters) | |
cea2e8a9 | 1961 | DIE(aTHX_ "Substitution loop"); |
d9f97599 | 1962 | rxtainted |= RX_MATCH_TAINTED(rx); |
cf93c79d | 1963 | m = rx->startp[0] + orig; |
71be2cbc | 1964 | /*SUPPRESS 560*/ |
155aba94 | 1965 | if ((i = m - s)) { |
71be2cbc | 1966 | if (s != d) |
1967 | Move(s, d, i, char); | |
1968 | d += i; | |
a0d0e21e | 1969 | } |
71be2cbc | 1970 | if (clen) { |
1971 | Copy(c, d, clen, char); | |
1972 | d += clen; | |
1973 | } | |
cf93c79d | 1974 | s = rx->endp[0] + orig; |
cea2e8a9 | 1975 | } while (CALLREGEXEC(aTHX_ rx, s, strend, orig, s == m, |
f722798b IZ |
1976 | TARG, NULL, |
1977 | /* don't match same null twice */ | |
1978 | REXEC_NOT_FIRST|REXEC_IGNOREPOS)); | |
71be2cbc | 1979 | if (s != d) { |
1980 | i = strend - s; | |
1981 | SvCUR_set(TARG, d - SvPVX(TARG) + i); | |
1982 | Move(s, d, i+1, char); /* include the NUL */ | |
a0d0e21e | 1983 | } |
48c036b1 | 1984 | TAINT_IF(rxtainted & 1); |
8ec5e241 | 1985 | SPAGAIN; |
71be2cbc | 1986 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
a0d0e21e | 1987 | } |
80b498e0 | 1988 | (void)SvPOK_only_UTF8(TARG); |
48c036b1 | 1989 | TAINT_IF(rxtainted); |
8ec5e241 NIS |
1990 | if (SvSMAGICAL(TARG)) { |
1991 | PUTBACK; | |
1992 | mg_set(TARG); | |
1993 | SPAGAIN; | |
1994 | } | |
9212bbba | 1995 | SvTAINT(TARG); |
71be2cbc | 1996 | LEAVE_SCOPE(oldsave); |
1997 | RETURN; | |
a0d0e21e | 1998 | } |
71be2cbc | 1999 | |
f722798b IZ |
2000 | if (CALLREGEXEC(aTHX_ rx, s, strend, orig, 0, TARG, NULL, |
2001 | r_flags | REXEC_CHECKED)) | |
2002 | { | |
a0d0e21e LW |
2003 | if (force_on_match) { |
2004 | force_on_match = 0; | |
2005 | s = SvPV_force(TARG, len); | |
2006 | goto force_it; | |
2007 | } | |
48c036b1 | 2008 | rxtainted |= RX_MATCH_TAINTED(rx); |
8ec5e241 | 2009 | dstr = NEWSV(25, len); |
a0d0e21e | 2010 | sv_setpvn(dstr, m, s-m); |
ffc61ed2 JH |
2011 | if (DO_UTF8(TARG)) |
2012 | SvUTF8_on(dstr); | |
3280af22 | 2013 | PL_curpm = pm; |
a0d0e21e | 2014 | if (!c) { |
c09156bb | 2015 | register PERL_CONTEXT *cx; |
8ec5e241 | 2016 | SPAGAIN; |
a0d0e21e LW |
2017 | PUSHSUBST(cx); |
2018 | RETURNOP(cPMOP->op_pmreplroot); | |
2019 | } | |
cf93c79d | 2020 | r_flags |= REXEC_IGNOREPOS | REXEC_NOT_FIRST; |
a0d0e21e LW |
2021 | do { |
2022 | if (iters++ > maxiters) | |
cea2e8a9 | 2023 | DIE(aTHX_ "Substitution loop"); |
d9f97599 | 2024 | rxtainted |= RX_MATCH_TAINTED(rx); |
cf93c79d | 2025 | if (RX_MATCH_COPIED(rx) && rx->subbeg != orig) { |
a0d0e21e LW |
2026 | m = s; |
2027 | s = orig; | |
cf93c79d | 2028 | orig = rx->subbeg; |
a0d0e21e LW |
2029 | s = orig + (m - s); |
2030 | strend = s + (strend - m); | |
2031 | } | |
cf93c79d | 2032 | m = rx->startp[0] + orig; |
a0d0e21e | 2033 | sv_catpvn(dstr, s, m-s); |
cf93c79d | 2034 | s = rx->endp[0] + orig; |
a0d0e21e LW |
2035 | if (clen) |
2036 | sv_catpvn(dstr, c, clen); | |
2037 | if (once) | |
2038 | break; | |
ffc61ed2 JH |
2039 | } while (CALLREGEXEC(aTHX_ rx, s, strend, orig, s == m, |
2040 | TARG, NULL, r_flags)); | |
a0d0e21e | 2041 | sv_catpvn(dstr, s, strend - s); |
748a9306 | 2042 | |
4633a7c4 | 2043 | (void)SvOOK_off(TARG); |
cb0b1708 | 2044 | Safefree(SvPVX(TARG)); |
748a9306 LW |
2045 | SvPVX(TARG) = SvPVX(dstr); |
2046 | SvCUR_set(TARG, SvCUR(dstr)); | |
2047 | SvLEN_set(TARG, SvLEN(dstr)); | |
2048 | SvPVX(dstr) = 0; | |
2049 | sv_free(dstr); | |
2050 | ||
48c036b1 | 2051 | TAINT_IF(rxtainted & 1); |
f878fbec | 2052 | SPAGAIN; |
48c036b1 GS |
2053 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
2054 | ||
a0d0e21e | 2055 | (void)SvPOK_only(TARG); |
48c036b1 | 2056 | TAINT_IF(rxtainted); |
a0d0e21e | 2057 | SvSETMAGIC(TARG); |
9212bbba | 2058 | SvTAINT(TARG); |
4633a7c4 | 2059 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
2060 | RETURN; |
2061 | } | |
5cd24f17 | 2062 | goto ret_no; |
a0d0e21e LW |
2063 | |
2064 | nope: | |
1c846c1f | 2065 | ret_no: |
8ec5e241 | 2066 | SPAGAIN; |
3280af22 | 2067 | PUSHs(&PL_sv_no); |
4633a7c4 | 2068 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
2069 | RETURN; |
2070 | } | |
2071 | ||
2072 | PP(pp_grepwhile) | |
2073 | { | |
4e35701f | 2074 | djSP; |
a0d0e21e LW |
2075 | |
2076 | if (SvTRUEx(POPs)) | |
3280af22 NIS |
2077 | PL_stack_base[PL_markstack_ptr[-1]++] = PL_stack_base[*PL_markstack_ptr]; |
2078 | ++*PL_markstack_ptr; | |
a0d0e21e LW |
2079 | LEAVE; /* exit inner scope */ |
2080 | ||
2081 | /* All done yet? */ | |
3280af22 | 2082 | if (PL_stack_base + *PL_markstack_ptr > SP) { |
a0d0e21e | 2083 | I32 items; |
54310121 | 2084 | I32 gimme = GIMME_V; |
a0d0e21e LW |
2085 | |
2086 | LEAVE; /* exit outer scope */ | |
2087 | (void)POPMARK; /* pop src */ | |
3280af22 | 2088 | items = --*PL_markstack_ptr - PL_markstack_ptr[-1]; |
a0d0e21e | 2089 | (void)POPMARK; /* pop dst */ |
3280af22 | 2090 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
54310121 | 2091 | if (gimme == G_SCALAR) { |
a0d0e21e LW |
2092 | dTARGET; |
2093 | XPUSHi(items); | |
a0d0e21e | 2094 | } |
54310121 | 2095 | else if (gimme == G_ARRAY) |
2096 | SP += items; | |
a0d0e21e LW |
2097 | RETURN; |
2098 | } | |
2099 | else { | |
2100 | SV *src; | |
2101 | ||
2102 | ENTER; /* enter inner scope */ | |
1d7c1841 | 2103 | SAVEVPTR(PL_curpm); |
a0d0e21e | 2104 | |
3280af22 | 2105 | src = PL_stack_base[*PL_markstack_ptr]; |
a0d0e21e | 2106 | SvTEMP_off(src); |
54b9620d | 2107 | DEFSV = src; |
a0d0e21e LW |
2108 | |
2109 | RETURNOP(cLOGOP->op_other); | |
2110 | } | |
2111 | } | |
2112 | ||
2113 | PP(pp_leavesub) | |
2114 | { | |
4e35701f | 2115 | djSP; |
a0d0e21e LW |
2116 | SV **mark; |
2117 | SV **newsp; | |
2118 | PMOP *newpm; | |
2119 | I32 gimme; | |
c09156bb | 2120 | register PERL_CONTEXT *cx; |
b0d9ce38 | 2121 | SV *sv; |
a0d0e21e LW |
2122 | |
2123 | POPBLOCK(cx,newpm); | |
1c846c1f | 2124 | |
a1f49e72 | 2125 | TAINT_NOT; |
a0d0e21e LW |
2126 | if (gimme == G_SCALAR) { |
2127 | MARK = newsp + 1; | |
a29cdaf0 | 2128 | if (MARK <= SP) { |
a8bba7fa | 2129 | if (cx->blk_sub.cv && CvDEPTH(cx->blk_sub.cv) > 1) { |
a29cdaf0 IZ |
2130 | if (SvTEMP(TOPs)) { |
2131 | *MARK = SvREFCNT_inc(TOPs); | |
2132 | FREETMPS; | |
2133 | sv_2mortal(*MARK); | |
cd06dffe GS |
2134 | } |
2135 | else { | |
959e3673 | 2136 | sv = SvREFCNT_inc(TOPs); /* FREETMPS could clobber it */ |
a29cdaf0 | 2137 | FREETMPS; |
959e3673 GS |
2138 | *MARK = sv_mortalcopy(sv); |
2139 | SvREFCNT_dec(sv); | |
a29cdaf0 | 2140 | } |
cd06dffe GS |
2141 | } |
2142 | else | |
a29cdaf0 | 2143 | *MARK = SvTEMP(TOPs) ? TOPs : sv_mortalcopy(TOPs); |
cd06dffe GS |
2144 | } |
2145 | else { | |
f86702cc | 2146 | MEXTEND(MARK, 0); |
3280af22 | 2147 | *MARK = &PL_sv_undef; |
a0d0e21e LW |
2148 | } |
2149 | SP = MARK; | |
2150 | } | |
54310121 | 2151 | else if (gimme == G_ARRAY) { |
f86702cc | 2152 | for (MARK = newsp + 1; MARK <= SP; MARK++) { |
a1f49e72 | 2153 | if (!SvTEMP(*MARK)) { |
f86702cc | 2154 | *MARK = sv_mortalcopy(*MARK); |
a1f49e72 CS |
2155 | TAINT_NOT; /* Each item is independent */ |
2156 | } | |
f86702cc | 2157 | } |
a0d0e21e | 2158 | } |
f86702cc | 2159 | PUTBACK; |
1c846c1f | 2160 | |
b0d9ce38 | 2161 | POPSUB(cx,sv); /* Stack values are safe: release CV and @_ ... */ |
3280af22 | 2162 | PL_curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e LW |
2163 | |
2164 | LEAVE; | |
b0d9ce38 | 2165 | LEAVESUB(sv); |
a0d0e21e LW |
2166 | return pop_return(); |
2167 | } | |
2168 | ||
cd06dffe GS |
2169 | /* This duplicates the above code because the above code must not |
2170 | * get any slower by more conditions */ | |
2171 | PP(pp_leavesublv) | |
2172 | { | |
2173 | djSP; | |
2174 | SV **mark; | |
2175 | SV **newsp; | |
2176 | PMOP *newpm; | |
2177 | I32 gimme; | |
2178 | register PERL_CONTEXT *cx; | |
b0d9ce38 | 2179 | SV *sv; |
cd06dffe GS |
2180 | |
2181 | POPBLOCK(cx,newpm); | |
1c846c1f | 2182 | |
cd06dffe GS |
2183 | TAINT_NOT; |
2184 | ||
2185 | if (cx->blk_sub.lval & OPpENTERSUB_INARGS) { | |
2186 | /* We are an argument to a function or grep(). | |
2187 | * This kind of lvalueness was legal before lvalue | |
2188 | * subroutines too, so be backward compatible: | |
2189 | * cannot report errors. */ | |
2190 | ||
2191 | /* Scalar context *is* possible, on the LHS of -> only, | |
2192 | * as in f()->meth(). But this is not an lvalue. */ | |
2193 | if (gimme == G_SCALAR) | |
2194 | goto temporise; | |
2195 | if (gimme == G_ARRAY) { | |
a8bba7fa | 2196 | if (!CvLVALUE(cx->blk_sub.cv)) |
cd06dffe GS |
2197 | goto temporise_array; |
2198 | EXTEND_MORTAL(SP - newsp); | |
2199 | for (mark = newsp + 1; mark <= SP; mark++) { | |
2200 | if (SvTEMP(*mark)) | |
2201 | /* empty */ ; | |
2202 | else if (SvFLAGS(*mark) & (SVs_PADTMP | SVf_READONLY)) | |
2203 | *mark = sv_mortalcopy(*mark); | |
2204 | else { | |
2205 | /* Can be a localized value subject to deletion. */ | |
2206 | PL_tmps_stack[++PL_tmps_ix] = *mark; | |
e1f15930 | 2207 | (void)SvREFCNT_inc(*mark); |
cd06dffe GS |
2208 | } |
2209 | } | |
2210 | } | |
2211 | } | |
2212 | else if (cx->blk_sub.lval) { /* Leave it as it is if we can. */ | |
2213 | /* Here we go for robustness, not for speed, so we change all | |
2214 | * the refcounts so the caller gets a live guy. Cannot set | |
2215 | * TEMP, so sv_2mortal is out of question. */ | |
a8bba7fa | 2216 | if (!CvLVALUE(cx->blk_sub.cv)) { |
b0d9ce38 | 2217 | POPSUB(cx,sv); |
d470f89e | 2218 | PL_curpm = newpm; |
b0d9ce38 GS |
2219 | LEAVE; |
2220 | LEAVESUB(sv); | |
d470f89e GS |
2221 | DIE(aTHX_ "Can't modify non-lvalue subroutine call"); |
2222 | } | |
cd06dffe GS |
2223 | if (gimme == G_SCALAR) { |
2224 | MARK = newsp + 1; | |
2225 | EXTEND_MORTAL(1); | |
2226 | if (MARK == SP) { | |
d470f89e | 2227 | if (SvFLAGS(TOPs) & (SVs_TEMP | SVs_PADTMP | SVf_READONLY)) { |
b0d9ce38 | 2228 | POPSUB(cx,sv); |
d470f89e | 2229 | PL_curpm = newpm; |
b0d9ce38 GS |
2230 | LEAVE; |
2231 | LEAVESUB(sv); | |
d470f89e | 2232 | DIE(aTHX_ "Can't return a %s from lvalue subroutine", |
cd06dffe | 2233 | SvREADONLY(TOPs) ? "readonly value" : "temporary"); |
d470f89e | 2234 | } |
cd06dffe GS |
2235 | else { /* Can be a localized value |
2236 | * subject to deletion. */ | |
2237 | PL_tmps_stack[++PL_tmps_ix] = *mark; | |
e1f15930 | 2238 | (void)SvREFCNT_inc(*mark); |
cd06dffe GS |
2239 | } |
2240 | } | |
d470f89e | 2241 | else { /* Should not happen? */ |
b0d9ce38 | 2242 | POPSUB(cx,sv); |
d470f89e | 2243 | PL_curpm = newpm; |
b0d9ce38 GS |
2244 | LEAVE; |
2245 | LEAVESUB(sv); | |
d470f89e | 2246 | DIE(aTHX_ "%s returned from lvalue subroutine in scalar context", |
cd06dffe | 2247 | (MARK > SP ? "Empty array" : "Array")); |
d470f89e | 2248 | } |
cd06dffe GS |
2249 | SP = MARK; |
2250 | } | |
2251 | else if (gimme == G_ARRAY) { | |
2252 | EXTEND_MORTAL(SP - newsp); | |
2253 | for (mark = newsp + 1; mark <= SP; mark++) { | |
d470f89e GS |
2254 | if (SvFLAGS(*mark) & (SVs_TEMP | SVs_PADTMP | SVf_READONLY)) { |
2255 | /* Might be flattened array after $#array = */ | |
2256 | PUTBACK; | |
b0d9ce38 | 2257 | POPSUB(cx,sv); |
d470f89e | 2258 | PL_curpm = newpm; |
b0d9ce38 GS |
2259 | LEAVE; |
2260 | LEAVESUB(sv); | |
d470f89e | 2261 | DIE(aTHX_ "Can't return %s from lvalue subroutine", |
cd06dffe GS |
2262 | (*mark != &PL_sv_undef) |
2263 | ? (SvREADONLY(TOPs) | |
2264 | ? "a readonly value" : "a temporary") | |
2265 | : "an uninitialized value"); | |
d470f89e | 2266 | } |
cd06dffe | 2267 | else { |
cd06dffe GS |
2268 | /* Can be a localized value subject to deletion. */ |
2269 | PL_tmps_stack[++PL_tmps_ix] = *mark; | |
e1f15930 | 2270 | (void)SvREFCNT_inc(*mark); |
cd06dffe GS |
2271 | } |
2272 | } | |
2273 | } | |
2274 | } | |
2275 | else { | |
2276 | if (gimme == G_SCALAR) { | |
2277 | temporise: | |
2278 | MARK = newsp + 1; | |
2279 | if (MARK <= SP) { | |
a8bba7fa | 2280 | if (cx->blk_sub.cv && CvDEPTH(cx->blk_sub.cv) > 1) { |
cd06dffe GS |
2281 | if (SvTEMP(TOPs)) { |
2282 | *MARK = SvREFCNT_inc(TOPs); | |
2283 | FREETMPS; | |
2284 | sv_2mortal(*MARK); | |
2285 | } | |
2286 | else { | |
959e3673 | 2287 | sv = SvREFCNT_inc(TOPs); /* FREETMPS could clobber it */ |
cd06dffe | 2288 | FREETMPS; |
959e3673 GS |
2289 | *MARK = sv_mortalcopy(sv); |
2290 | SvREFCNT_dec(sv); | |
cd06dffe GS |
2291 | } |
2292 | } | |
2293 | else | |
2294 | *MARK = SvTEMP(TOPs) ? TOPs : sv_mortalcopy(TOPs); | |
2295 | } | |
2296 | else { | |
2297 | MEXTEND(MARK, 0); | |
2298 | *MARK = &PL_sv_undef; | |
2299 | } | |
2300 | SP = MARK; | |
2301 | } | |
2302 | else if (gimme == G_ARRAY) { | |
2303 | temporise_array: | |
2304 | for (MARK = newsp + 1; MARK <= SP; MARK++) { | |
2305 | if (!SvTEMP(*MARK)) { | |
2306 | *MARK = sv_mortalcopy(*MARK); | |
2307 | TAINT_NOT; /* Each item is independent */ | |
2308 | } | |
2309 | } | |
2310 | } | |
2311 | } | |
2312 | PUTBACK; | |
1c846c1f | 2313 | |
b0d9ce38 | 2314 | POPSUB(cx,sv); /* Stack values are safe: release CV and @_ ... */ |
cd06dffe GS |
2315 | PL_curpm = newpm; /* ... and pop $1 et al */ |
2316 | ||
2317 | LEAVE; | |
b0d9ce38 | 2318 | LEAVESUB(sv); |
cd06dffe GS |
2319 | return pop_return(); |
2320 | } | |
2321 | ||
2322 | ||
76e3520e | 2323 | STATIC CV * |
cea2e8a9 | 2324 | S_get_db_sub(pTHX_ SV **svp, CV *cv) |
3de9ffa1 | 2325 | { |
3280af22 | 2326 | SV *dbsv = GvSV(PL_DBsub); |
491527d0 GS |
2327 | |
2328 | if (!PERLDB_SUB_NN) { | |
2329 | GV *gv = CvGV(cv); | |
2330 | ||
2331 | save_item(dbsv); | |
2332 | if ( (CvFLAGS(cv) & (CVf_ANON | CVf_CLONED)) | |
1c846c1f | 2333 | || strEQ(GvNAME(gv), "END") |
491527d0 GS |
2334 | || ((GvCV(gv) != cv) && /* Could be imported, and old sub redefined. */ |
2335 | !( (SvTYPE(*svp) == SVt_PVGV) && (GvCV((GV*)*svp) == cv) | |
2336 | && (gv = (GV*)*svp) ))) { | |
2337 | /* Use GV from the stack as a fallback. */ | |
2338 | /* GV is potentially non-unique, or contain different CV. */ | |
c2e66d9e GS |
2339 | SV *tmp = newRV((SV*)cv); |
2340 | sv_setsv(dbsv, tmp); | |
2341 | SvREFCNT_dec(tmp); | |
491527d0 GS |
2342 | } |
2343 | else { | |
2344 | gv_efullname3(dbsv, gv, Nullch); | |
2345 | } | |
3de9ffa1 MB |
2346 | } |
2347 | else { | |
155aba94 GS |
2348 | (void)SvUPGRADE(dbsv, SVt_PVIV); |
2349 | (void)SvIOK_on(dbsv); | |
491527d0 | 2350 | SAVEIV(SvIVX(dbsv)); |
5bc28da9 | 2351 | SvIVX(dbsv) = PTR2IV(cv); /* Do it the quickest way */ |
3de9ffa1 | 2352 | } |
491527d0 | 2353 | |
3de9ffa1 | 2354 | if (CvXSUB(cv)) |
3280af22 NIS |
2355 | PL_curcopdb = PL_curcop; |
2356 | cv = GvCV(PL_DBsub); | |
3de9ffa1 MB |
2357 | return cv; |
2358 | } | |
2359 | ||
a0d0e21e LW |
2360 | PP(pp_entersub) |
2361 | { | |
4e35701f | 2362 | djSP; dPOPss; |
a0d0e21e LW |
2363 | GV *gv; |
2364 | HV *stash; | |
2365 | register CV *cv; | |
c09156bb | 2366 | register PERL_CONTEXT *cx; |
5d94fbed | 2367 | I32 gimme; |
533c011a | 2368 | bool hasargs = (PL_op->op_flags & OPf_STACKED) != 0; |
a0d0e21e LW |
2369 | |
2370 | if (!sv) | |
cea2e8a9 | 2371 | DIE(aTHX_ "Not a CODE reference"); |
a0d0e21e LW |
2372 | switch (SvTYPE(sv)) { |
2373 | default: | |
2374 | if (!SvROK(sv)) { | |
748a9306 | 2375 | char *sym; |
2d8e6c8d | 2376 | STRLEN n_a; |
748a9306 | 2377 | |
3280af22 | 2378 | if (sv == &PL_sv_yes) { /* unfound import, ignore */ |
fb73857a | 2379 | if (hasargs) |
3280af22 | 2380 | SP = PL_stack_base + POPMARK; |
a0d0e21e | 2381 | RETURN; |
fb73857a | 2382 | } |
15ff848f CS |
2383 | if (SvGMAGICAL(sv)) { |
2384 | mg_get(sv); | |
2385 | sym = SvPOKp(sv) ? SvPVX(sv) : Nullch; | |
2386 | } | |
2387 | else | |
2d8e6c8d | 2388 | sym = SvPV(sv, n_a); |
15ff848f | 2389 | if (!sym) |
cea2e8a9 | 2390 | DIE(aTHX_ PL_no_usym, "a subroutine"); |
533c011a | 2391 | if (PL_op->op_private & HINT_STRICT_REFS) |
cea2e8a9 | 2392 | DIE(aTHX_ PL_no_symref, sym, "a subroutine"); |
864dbfa3 | 2393 | cv = get_cv(sym, TRUE); |
a0d0e21e LW |
2394 | break; |
2395 | } | |
f5284f61 IZ |
2396 | { |
2397 | SV **sp = &sv; /* Used in tryAMAGICunDEREF macro. */ | |
2398 | tryAMAGICunDEREF(to_cv); | |
2399 | } | |
a0d0e21e LW |
2400 | cv = (CV*)SvRV(sv); |
2401 | if (SvTYPE(cv) == SVt_PVCV) | |
2402 | break; | |
2403 | /* FALL THROUGH */ | |
2404 | case SVt_PVHV: | |
2405 | case SVt_PVAV: | |
cea2e8a9 | 2406 | DIE(aTHX_ "Not a CODE reference"); |
a0d0e21e LW |
2407 | case SVt_PVCV: |
2408 | cv = (CV*)sv; | |
2409 | break; | |
2410 | case SVt_PVGV: | |
8ebc5c01 | 2411 | if (!(cv = GvCVu((GV*)sv))) |
f6ec51f7 GS |
2412 | cv = sv_2cv(sv, &stash, &gv, FALSE); |
2413 | if (!cv) { | |
2414 | ENTER; | |
2415 | SAVETMPS; | |
2416 | goto try_autoload; | |
2417 | } | |
2418 | break; | |
a0d0e21e LW |
2419 | } |
2420 | ||
2421 | ENTER; | |
2422 | SAVETMPS; | |
2423 | ||
2424 | retry: | |
a0d0e21e | 2425 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
44a8e56a | 2426 | GV* autogv; |
22239a37 | 2427 | SV* sub_name; |
44a8e56a | 2428 | |
2429 | /* anonymous or undef'd function leaves us no recourse */ | |
2430 | if (CvANON(cv) || !(gv = CvGV(cv))) | |
cea2e8a9 | 2431 | DIE(aTHX_ "Undefined subroutine called"); |
67caa1fe | 2432 | |
44a8e56a | 2433 | /* autoloaded stub? */ |
2434 | if (cv != GvCV(gv)) { | |
2435 | cv = GvCV(gv); | |
a0d0e21e | 2436 | } |
44a8e56a | 2437 | /* should call AUTOLOAD now? */ |
67caa1fe | 2438 | else { |
f6ec51f7 GS |
2439 | try_autoload: |
2440 | if ((autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), | |
2441 | FALSE))) | |
2442 | { | |
2443 | cv = GvCV(autogv); | |
2444 | } | |
2445 | /* sorry */ | |
2446 | else { | |
2447 | sub_name = sv_newmortal(); | |
2448 | gv_efullname3(sub_name, gv, Nullch); | |
cea2e8a9 | 2449 | DIE(aTHX_ "Undefined subroutine &%s called", SvPVX(sub_name)); |
f6ec51f7 | 2450 | } |
67caa1fe GS |
2451 | } |
2452 | if (!cv) | |
cea2e8a9 | 2453 | DIE(aTHX_ "Not a CODE reference"); |
67caa1fe | 2454 | goto retry; |
a0d0e21e LW |
2455 | } |
2456 | ||
54310121 | 2457 | gimme = GIMME_V; |
67caa1fe | 2458 | if ((PL_op->op_private & OPpENTERSUB_DB) && GvCV(PL_DBsub) && !CvNODEBUG(cv)) { |
4f01c5a5 | 2459 | cv = get_db_sub(&sv, cv); |
67caa1fe | 2460 | if (!cv) |
cea2e8a9 | 2461 | DIE(aTHX_ "No DBsub routine"); |
67caa1fe | 2462 | } |
a0d0e21e | 2463 | |
11343788 | 2464 | #ifdef USE_THREADS |
3de9ffa1 MB |
2465 | /* |
2466 | * First we need to check if the sub or method requires locking. | |
458fb581 MB |
2467 | * If so, we gain a lock on the CV, the first argument or the |
2468 | * stash (for static methods), as appropriate. This has to be | |
2469 | * inline because for FAKE_THREADS, COND_WAIT inlines code to | |
2470 | * reschedule by returning a new op. | |
3de9ffa1 | 2471 | */ |
11343788 | 2472 | MUTEX_LOCK(CvMUTEXP(cv)); |
77a005ab MB |
2473 | if (CvFLAGS(cv) & CVf_LOCKED) { |
2474 | MAGIC *mg; | |
2475 | if (CvFLAGS(cv) & CVf_METHOD) { | |
533c011a NIS |
2476 | if (SP > PL_stack_base + TOPMARK) |
2477 | sv = *(PL_stack_base + TOPMARK + 1); | |
77a005ab | 2478 | else { |
13e08037 GS |
2479 | AV *av = (AV*)PL_curpad[0]; |
2480 | if (hasargs || !av || AvFILLp(av) < 0 | |
2481 | || !(sv = AvARRAY(av)[0])) | |
2482 | { | |
2483 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
d470f89e | 2484 | DIE(aTHX_ "no argument for locked method call"); |
13e08037 | 2485 | } |
77a005ab MB |
2486 | } |
2487 | if (SvROK(sv)) | |
2488 | sv = SvRV(sv); | |
458fb581 MB |
2489 | else { |
2490 | STRLEN len; | |
2491 | char *stashname = SvPV(sv, len); | |
2492 | sv = (SV*)gv_stashpvn(stashname, len, TRUE); | |
2493 | } | |
77a005ab MB |
2494 | } |
2495 | else { | |
2496 | sv = (SV*)cv; | |
2497 | } | |
2498 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
2499 | mg = condpair_magic(sv); | |
2500 | MUTEX_LOCK(MgMUTEXP(mg)); | |
2501 | if (MgOWNER(mg) == thr) | |
2502 | MUTEX_UNLOCK(MgMUTEXP(mg)); | |
2503 | else { | |
2504 | while (MgOWNER(mg)) | |
2505 | COND_WAIT(MgOWNERCONDP(mg), MgMUTEXP(mg)); | |
2506 | MgOWNER(mg) = thr; | |
bf49b057 | 2507 | DEBUG_S(PerlIO_printf(Perl_debug_log, "%p: pp_entersub lock %p\n", |
1fd28e87 | 2508 | thr, sv);) |
77a005ab | 2509 | MUTEX_UNLOCK(MgMUTEXP(mg)); |
c76ac1ee | 2510 | SAVEDESTRUCTOR_X(Perl_unlock_condpair, sv); |
11343788 | 2511 | } |
77a005ab | 2512 | MUTEX_LOCK(CvMUTEXP(cv)); |
11343788 | 2513 | } |
3de9ffa1 MB |
2514 | /* |
2515 | * Now we have permission to enter the sub, we must distinguish | |
2516 | * four cases. (0) It's an XSUB (in which case we don't care | |
2517 | * about ownership); (1) it's ours already (and we're recursing); | |
2518 | * (2) it's free (but we may already be using a cached clone); | |
2519 | * (3) another thread owns it. Case (1) is easy: we just use it. | |
2520 | * Case (2) means we look for a clone--if we have one, use it | |
2521 | * otherwise grab ownership of cv. Case (3) means we look for a | |
2522 | * clone (for non-XSUBs) and have to create one if we don't | |
2523 | * already have one. | |
2524 | * Why look for a clone in case (2) when we could just grab | |
2525 | * ownership of cv straight away? Well, we could be recursing, | |
2526 | * i.e. we originally tried to enter cv while another thread | |
2527 | * owned it (hence we used a clone) but it has been freed up | |
2528 | * and we're now recursing into it. It may or may not be "better" | |
2529 | * to use the clone but at least CvDEPTH can be trusted. | |
2530 | */ | |
2531 | if (CvOWNER(cv) == thr || CvXSUB(cv)) | |
2532 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
11343788 | 2533 | else { |
3de9ffa1 MB |
2534 | /* Case (2) or (3) */ |
2535 | SV **svp; | |
2536 | ||
11343788 | 2537 | /* |
3de9ffa1 MB |
2538 | * XXX Might it be better to release CvMUTEXP(cv) while we |
2539 | * do the hv_fetch? We might find someone has pinched it | |
2540 | * when we look again, in which case we would be in case | |
2541 | * (3) instead of (2) so we'd have to clone. Would the fact | |
2542 | * that we released the mutex more quickly make up for this? | |
2543 | */ | |
b099ddc0 | 2544 | if ((svp = hv_fetch(thr->cvcache, (char *)cv, sizeof(cv), FALSE))) |
6ee623d5 | 2545 | { |
3de9ffa1 | 2546 | /* We already have a clone to use */ |
11343788 | 2547 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
3de9ffa1 | 2548 | cv = *(CV**)svp; |
bf49b057 | 2549 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
1fd28e87 MB |
2550 | "entersub: %p already has clone %p:%s\n", |
2551 | thr, cv, SvPEEK((SV*)cv))); | |
3de9ffa1 MB |
2552 | CvOWNER(cv) = thr; |
2553 | SvREFCNT_inc(cv); | |
2554 | if (CvDEPTH(cv) == 0) | |
c76ac1ee | 2555 | SAVEDESTRUCTOR_X(unset_cvowner, (void*) cv); |
3de9ffa1 | 2556 | } |
11343788 | 2557 | else { |
3de9ffa1 MB |
2558 | /* (2) => grab ownership of cv. (3) => make clone */ |
2559 | if (!CvOWNER(cv)) { | |
2560 | CvOWNER(cv) = thr; | |
2561 | SvREFCNT_inc(cv); | |
11343788 | 2562 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
bf49b057 | 2563 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
1fd28e87 MB |
2564 | "entersub: %p grabbing %p:%s in stash %s\n", |
2565 | thr, cv, SvPEEK((SV*)cv), CvSTASH(cv) ? | |
3de9ffa1 | 2566 | HvNAME(CvSTASH(cv)) : "(none)")); |
cd06dffe GS |
2567 | } |
2568 | else { | |
3de9ffa1 MB |
2569 | /* Make a new clone. */ |
2570 | CV *clonecv; | |
2571 | SvREFCNT_inc(cv); /* don't let it vanish from under us */ | |
2572 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
bf49b057 | 2573 | DEBUG_S((PerlIO_printf(Perl_debug_log, |
1fd28e87 MB |
2574 | "entersub: %p cloning %p:%s\n", |
2575 | thr, cv, SvPEEK((SV*)cv)))); | |
3de9ffa1 MB |
2576 | /* |
2577 | * We're creating a new clone so there's no race | |
2578 | * between the original MUTEX_UNLOCK and the | |
2579 | * SvREFCNT_inc since no one will be trying to undef | |
2580 | * it out from underneath us. At least, I don't think | |
2581 | * there's a race... | |
2582 | */ | |
2583 | clonecv = cv_clone(cv); | |
2584 | SvREFCNT_dec(cv); /* finished with this */ | |
199100c8 | 2585 | hv_store(thr->cvcache, (char*)cv, sizeof(cv), (SV*)clonecv,0); |
3de9ffa1 MB |
2586 | CvOWNER(clonecv) = thr; |
2587 | cv = clonecv; | |
11343788 | 2588 | SvREFCNT_inc(cv); |
11343788 | 2589 | } |
8b73bbec | 2590 | DEBUG_S(if (CvDEPTH(cv) != 0) |
bf49b057 | 2591 | PerlIO_printf(Perl_debug_log, "depth %ld != 0\n", |
3de9ffa1 | 2592 | CvDEPTH(cv));); |
c76ac1ee | 2593 | SAVEDESTRUCTOR_X(unset_cvowner, (void*) cv); |
11343788 | 2594 | } |
3de9ffa1 | 2595 | } |
11343788 MB |
2596 | #endif /* USE_THREADS */ |
2597 | ||
a0d0e21e | 2598 | if (CvXSUB(cv)) { |
67caa1fe | 2599 | #ifdef PERL_XSUB_OLDSTYLE |
a0d0e21e | 2600 | if (CvOLDSTYLE(cv)) { |
20ce7b12 | 2601 | I32 (*fp3)(int,int,int); |
a0d0e21e LW |
2602 | dMARK; |
2603 | register I32 items = SP - MARK; | |
67955e0c | 2604 | /* We dont worry to copy from @_. */ |
924508f0 GS |
2605 | while (SP > mark) { |
2606 | SP[1] = SP[0]; | |
2607 | SP--; | |
a0d0e21e | 2608 | } |
3280af22 | 2609 | PL_stack_sp = mark + 1; |
1d7c1841 | 2610 | fp3 = (I32(*)(int,int,int))CvXSUB(cv); |
1c846c1f | 2611 | items = (*fp3)(CvXSUBANY(cv).any_i32, |
3280af22 | 2612 | MARK - PL_stack_base + 1, |
ecfc5424 | 2613 | items); |
3280af22 | 2614 | PL_stack_sp = PL_stack_base + items; |
a0d0e21e | 2615 | } |
67caa1fe GS |
2616 | else |
2617 | #endif /* PERL_XSUB_OLDSTYLE */ | |
2618 | { | |
748a9306 LW |
2619 | I32 markix = TOPMARK; |
2620 | ||
a0d0e21e | 2621 | PUTBACK; |
67955e0c | 2622 | |
2623 | if (!hasargs) { | |
2624 | /* Need to copy @_ to stack. Alternative may be to | |
2625 | * switch stack to @_, and copy return values | |
2626 | * back. This would allow popping @_ in XSUB, e.g.. XXXX */ | |
6d4ff0d2 MB |
2627 | AV* av; |
2628 | I32 items; | |
2629 | #ifdef USE_THREADS | |
533c011a | 2630 | av = (AV*)PL_curpad[0]; |
6d4ff0d2 | 2631 | #else |
3280af22 | 2632 | av = GvAV(PL_defgv); |
6d4ff0d2 | 2633 | #endif /* USE_THREADS */ |
93965878 | 2634 | items = AvFILLp(av) + 1; /* @_ is not tieable */ |
67955e0c | 2635 | |
2636 | if (items) { | |
2637 | /* Mark is at the end of the stack. */ | |
924508f0 GS |
2638 | EXTEND(SP, items); |
2639 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
2640 | SP += items; | |
1c846c1f | 2641 | PUTBACK ; |
67955e0c | 2642 | } |
2643 | } | |
67caa1fe GS |
2644 | /* We assume first XSUB in &DB::sub is the called one. */ |
2645 | if (PL_curcopdb) { | |
1d7c1841 | 2646 | SAVEVPTR(PL_curcop); |
3280af22 NIS |
2647 | PL_curcop = PL_curcopdb; |
2648 | PL_curcopdb = NULL; | |
67955e0c | 2649 | } |
2650 | /* Do we need to open block here? XXXX */ | |
0cb96387 | 2651 | (void)(*CvXSUB(cv))(aTHXo_ cv); |
748a9306 LW |
2652 | |
2653 | /* Enforce some sanity in scalar context. */ | |
3280af22 NIS |
2654 | if (gimme == G_SCALAR && ++markix != PL_stack_sp - PL_stack_base ) { |
2655 | if (markix > PL_stack_sp - PL_stack_base) | |
2656 | *(PL_stack_base + markix) = &PL_sv_undef; | |
748a9306 | 2657 | else |
3280af22 NIS |
2658 | *(PL_stack_base + markix) = *PL_stack_sp; |
2659 | PL_stack_sp = PL_stack_base + markix; | |
748a9306 | 2660 | } |
a0d0e21e LW |
2661 | } |
2662 | LEAVE; | |
2663 | return NORMAL; | |
2664 | } | |
2665 | else { | |
2666 | dMARK; | |
2667 | register I32 items = SP - MARK; | |
a0d0e21e LW |
2668 | AV* padlist = CvPADLIST(cv); |
2669 | SV** svp = AvARRAY(padlist); | |
533c011a | 2670 | push_return(PL_op->op_next); |
a0d0e21e LW |
2671 | PUSHBLOCK(cx, CXt_SUB, MARK); |
2672 | PUSHSUB(cx); | |
2673 | CvDEPTH(cv)++; | |
6b35e009 GS |
2674 | /* XXX This would be a natural place to set C<PL_compcv = cv> so |
2675 | * that eval'' ops within this sub know the correct lexical space. | |
2676 | * Owing the speed considerations, we choose to search for the cv | |
2677 | * in doeval() instead. | |
2678 | */ | |
a0d0e21e LW |
2679 | if (CvDEPTH(cv) < 2) |
2680 | (void)SvREFCNT_inc(cv); | |
2681 | else { /* save temporaries on recursion? */ | |
1d7c1841 | 2682 | PERL_STACK_OVERFLOW_CHECK(); |
93965878 | 2683 | if (CvDEPTH(cv) > AvFILLp(padlist)) { |
a0d0e21e LW |
2684 | AV *av; |
2685 | AV *newpad = newAV(); | |
4aa0a1f7 | 2686 | SV **oldpad = AvARRAY(svp[CvDEPTH(cv)-1]); |
93965878 | 2687 | I32 ix = AvFILLp((AV*)svp[1]); |
1d7c1841 | 2688 | I32 names_fill = AvFILLp((AV*)svp[0]); |
a0d0e21e | 2689 | svp = AvARRAY(svp[0]); |
748a9306 | 2690 | for ( ;ix > 0; ix--) { |
1d7c1841 | 2691 | if (names_fill >= ix && svp[ix] != &PL_sv_undef) { |
748a9306 | 2692 | char *name = SvPVX(svp[ix]); |
5f05dabc | 2693 | if ((SvFLAGS(svp[ix]) & SVf_FAKE) /* outer lexical? */ |
2694 | || *name == '&') /* anonymous code? */ | |
2695 | { | |
2696 | av_store(newpad, ix, SvREFCNT_inc(oldpad[ix])); | |
748a9306 LW |
2697 | } |
2698 | else { /* our own lexical */ | |
2699 | if (*name == '@') | |
2700 | av_store(newpad, ix, sv = (SV*)newAV()); | |
2701 | else if (*name == '%') | |
2702 | av_store(newpad, ix, sv = (SV*)newHV()); | |
2703 | else | |
2704 | av_store(newpad, ix, sv = NEWSV(0,0)); | |
2705 | SvPADMY_on(sv); | |
2706 | } | |
a0d0e21e | 2707 | } |
1d7c1841 GS |
2708 | else if (IS_PADGV(oldpad[ix]) || IS_PADCONST(oldpad[ix])) { |
2709 | av_store(newpad, ix, sv = SvREFCNT_inc(oldpad[ix])); | |
2710 | } | |
a0d0e21e | 2711 | else { |
748a9306 | 2712 | av_store(newpad, ix, sv = NEWSV(0,0)); |
a0d0e21e LW |
2713 | SvPADTMP_on(sv); |
2714 | } | |
2715 | } | |
2716 | av = newAV(); /* will be @_ */ | |
2717 | av_extend(av, 0); | |
2718 | av_store(newpad, 0, (SV*)av); | |
2719 | AvFLAGS(av) = AVf_REIFY; | |
2720 | av_store(padlist, CvDEPTH(cv), (SV*)newpad); | |
93965878 | 2721 | AvFILLp(padlist) = CvDEPTH(cv); |
a0d0e21e LW |
2722 | svp = AvARRAY(padlist); |
2723 | } | |
2724 | } | |
6d4ff0d2 MB |
2725 | #ifdef USE_THREADS |
2726 | if (!hasargs) { | |
533c011a | 2727 | AV* av = (AV*)PL_curpad[0]; |
6d4ff0d2 | 2728 | |
93965878 | 2729 | items = AvFILLp(av) + 1; |
6d4ff0d2 MB |
2730 | if (items) { |
2731 | /* Mark is at the end of the stack. */ | |
924508f0 GS |
2732 | EXTEND(SP, items); |
2733 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
2734 | SP += items; | |
1c846c1f | 2735 | PUTBACK ; |
6d4ff0d2 MB |
2736 | } |
2737 | } | |
2738 | #endif /* USE_THREADS */ | |
1d7c1841 | 2739 | SAVEVPTR(PL_curpad); |
3280af22 | 2740 | PL_curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]); |
6d4ff0d2 MB |
2741 | #ifndef USE_THREADS |
2742 | if (hasargs) | |
2743 | #endif /* USE_THREADS */ | |
2744 | { | |
2745 | AV* av; | |
a0d0e21e LW |
2746 | SV** ary; |
2747 | ||
77a005ab | 2748 | #if 0 |
bf49b057 | 2749 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
0f15f207 | 2750 | "%p entersub preparing @_\n", thr)); |
77a005ab | 2751 | #endif |
3280af22 | 2752 | av = (AV*)PL_curpad[0]; |
221373f0 GS |
2753 | if (AvREAL(av)) { |
2754 | /* @_ is normally not REAL--this should only ever | |
2755 | * happen when DB::sub() calls things that modify @_ */ | |
2756 | av_clear(av); | |
2757 | AvREAL_off(av); | |
2758 | AvREIFY_on(av); | |
2759 | } | |
6d4ff0d2 | 2760 | #ifndef USE_THREADS |
3280af22 NIS |
2761 | cx->blk_sub.savearray = GvAV(PL_defgv); |
2762 | GvAV(PL_defgv) = (AV*)SvREFCNT_inc(av); | |
6d4ff0d2 | 2763 | #endif /* USE_THREADS */ |
7032098e | 2764 | cx->blk_sub.oldcurpad = PL_curpad; |
6d4ff0d2 | 2765 | cx->blk_sub.argarray = av; |
a0d0e21e LW |
2766 | ++MARK; |
2767 | ||
2768 | if (items > AvMAX(av) + 1) { | |
2769 | ary = AvALLOC(av); | |
2770 | if (AvARRAY(av) != ary) { | |
2771 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); | |
2772 | SvPVX(av) = (char*)ary; | |
2773 | } | |
2774 | if (items > AvMAX(av) + 1) { | |
2775 | AvMAX(av) = items - 1; | |
2776 | Renew(ary,items,SV*); | |
2777 | AvALLOC(av) = ary; | |
2778 | SvPVX(av) = (char*)ary; | |
2779 | } | |
2780 | } | |
2781 | Copy(MARK,AvARRAY(av),items,SV*); | |
93965878 | 2782 | AvFILLp(av) = items - 1; |
1c846c1f | 2783 | |
a0d0e21e LW |
2784 | while (items--) { |
2785 | if (*MARK) | |
2786 | SvTEMP_off(*MARK); | |
2787 | MARK++; | |
2788 | } | |
2789 | } | |
4a925ff6 GS |
2790 | /* warning must come *after* we fully set up the context |
2791 | * stuff so that __WARN__ handlers can safely dounwind() | |
2792 | * if they want to | |
2793 | */ | |
2794 | if (CvDEPTH(cv) == 100 && ckWARN(WARN_RECURSION) | |
2795 | && !(PERLDB_SUB && cv == GvCV(PL_DBsub))) | |
2796 | sub_crush_depth(cv); | |
77a005ab | 2797 | #if 0 |
bf49b057 | 2798 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
0f15f207 | 2799 | "%p entersub returning %p\n", thr, CvSTART(cv))); |
77a005ab | 2800 | #endif |
a0d0e21e LW |
2801 | RETURNOP(CvSTART(cv)); |
2802 | } | |
2803 | } | |
2804 | ||
44a8e56a | 2805 | void |
864dbfa3 | 2806 | Perl_sub_crush_depth(pTHX_ CV *cv) |
44a8e56a | 2807 | { |
2808 | if (CvANON(cv)) | |
cea2e8a9 | 2809 | Perl_warner(aTHX_ WARN_RECURSION, "Deep recursion on anonymous subroutine"); |
44a8e56a | 2810 | else { |
2811 | SV* tmpstr = sv_newmortal(); | |
2812 | gv_efullname3(tmpstr, CvGV(cv), Nullch); | |
1c846c1f | 2813 | Perl_warner(aTHX_ WARN_RECURSION, "Deep recursion on subroutine \"%s\"", |
599cee73 | 2814 | SvPVX(tmpstr)); |
44a8e56a | 2815 | } |
2816 | } | |
2817 | ||
a0d0e21e LW |
2818 | PP(pp_aelem) |
2819 | { | |
4e35701f | 2820 | djSP; |
a0d0e21e | 2821 | SV** svp; |
d804643f SC |
2822 | SV* elemsv = POPs; |
2823 | IV elem = SvIV(elemsv); | |
68dc0745 | 2824 | AV* av = (AV*)POPs; |
533c011a NIS |
2825 | U32 lval = PL_op->op_flags & OPf_MOD; |
2826 | U32 defer = (PL_op->op_private & OPpLVAL_DEFER) && (elem > AvFILL(av)); | |
be6c24e0 | 2827 | SV *sv; |
a0d0e21e | 2828 | |
d804643f SC |
2829 | if (SvROK(elemsv) && ckWARN(WARN_MISC)) |
2830 | Perl_warner(aTHX_ WARN_MISC, "Use of reference \"%s\" as array index", SvPV_nolen(elemsv)); | |
748a9306 | 2831 | if (elem > 0) |
3280af22 | 2832 | elem -= PL_curcop->cop_arybase; |
a0d0e21e LW |
2833 | if (SvTYPE(av) != SVt_PVAV) |
2834 | RETPUSHUNDEF; | |
68dc0745 | 2835 | svp = av_fetch(av, elem, lval && !defer); |
a0d0e21e | 2836 | if (lval) { |
3280af22 | 2837 | if (!svp || *svp == &PL_sv_undef) { |
68dc0745 | 2838 | SV* lv; |
2839 | if (!defer) | |
cea2e8a9 | 2840 | DIE(aTHX_ PL_no_aelem, elem); |
68dc0745 | 2841 | lv = sv_newmortal(); |
2842 | sv_upgrade(lv, SVt_PVLV); | |
2843 | LvTYPE(lv) = 'y'; | |
2844 | sv_magic(lv, Nullsv, 'y', Nullch, 0); | |
2845 | LvTARG(lv) = SvREFCNT_inc(av); | |
2846 | LvTARGOFF(lv) = elem; | |
2847 | LvTARGLEN(lv) = 1; | |
2848 | PUSHs(lv); | |
2849 | RETURN; | |
2850 | } | |
533c011a | 2851 | if (PL_op->op_private & OPpLVAL_INTRO) |
161b7d16 | 2852 | save_aelem(av, elem, svp); |
533c011a NIS |
2853 | else if (PL_op->op_private & OPpDEREF) |
2854 | vivify_ref(*svp, PL_op->op_private & OPpDEREF); | |
a0d0e21e | 2855 | } |
3280af22 | 2856 | sv = (svp ? *svp : &PL_sv_undef); |
be6c24e0 GS |
2857 | if (!lval && SvGMAGICAL(sv)) /* see note in pp_helem() */ |
2858 | sv = sv_mortalcopy(sv); | |
2859 | PUSHs(sv); | |
a0d0e21e LW |
2860 | RETURN; |
2861 | } | |
2862 | ||
02a9e968 | 2863 | void |
864dbfa3 | 2864 | Perl_vivify_ref(pTHX_ SV *sv, U32 to_what) |
02a9e968 CS |
2865 | { |
2866 | if (SvGMAGICAL(sv)) | |
2867 | mg_get(sv); | |
2868 | if (!SvOK(sv)) { | |
2869 | if (SvREADONLY(sv)) | |
cea2e8a9 | 2870 | Perl_croak(aTHX_ PL_no_modify); |
5f05dabc | 2871 | if (SvTYPE(sv) < SVt_RV) |
2872 | sv_upgrade(sv, SVt_RV); | |
2873 | else if (SvTYPE(sv) >= SVt_PV) { | |
2874 | (void)SvOOK_off(sv); | |
2875 | Safefree(SvPVX(sv)); | |
2876 | SvLEN(sv) = SvCUR(sv) = 0; | |
2877 | } | |
68dc0745 | 2878 | switch (to_what) { |
5f05dabc | 2879 | case OPpDEREF_SV: |
8c52afec | 2880 | SvRV(sv) = NEWSV(355,0); |
5f05dabc | 2881 | break; |
2882 | case OPpDEREF_AV: | |
2883 | SvRV(sv) = (SV*)newAV(); | |
2884 | break; | |
2885 | case OPpDEREF_HV: | |
2886 | SvRV(sv) = (SV*)newHV(); | |
2887 | break; | |
2888 | } | |
02a9e968 CS |
2889 | SvROK_on(sv); |
2890 | SvSETMAGIC(sv); | |
2891 | } | |
2892 | } | |
2893 | ||
a0d0e21e LW |
2894 | PP(pp_method) |
2895 | { | |
4e35701f | 2896 | djSP; |
f5d5a27c CS |
2897 | SV* sv = TOPs; |
2898 | ||
2899 | if (SvROK(sv)) { | |
eda383f2 | 2900 | SV* rsv = SvRV(sv); |
f5d5a27c CS |
2901 | if (SvTYPE(rsv) == SVt_PVCV) { |
2902 | SETs(rsv); | |
2903 | RETURN; | |
2904 | } | |
2905 | } | |
2906 | ||
2907 | SETs(method_common(sv, Null(U32*))); | |
2908 | RETURN; | |
2909 | } | |
2910 | ||
2911 | PP(pp_method_named) | |
2912 | { | |
2913 | djSP; | |
2914 | SV* sv = cSVOP->op_sv; | |
2915 | U32 hash = SvUVX(sv); | |
2916 | ||
2917 | XPUSHs(method_common(sv, &hash)); | |
2918 | RETURN; | |
2919 | } | |
2920 | ||
2921 | STATIC SV * | |
2922 | S_method_common(pTHX_ SV* meth, U32* hashp) | |
2923 | { | |
a0d0e21e LW |
2924 | SV* sv; |
2925 | SV* ob; | |
2926 | GV* gv; | |
56304f61 CS |
2927 | HV* stash; |
2928 | char* name; | |
f5d5a27c | 2929 | STRLEN namelen; |
ac91690f CS |
2930 | char* packname; |
2931 | STRLEN packlen; | |
a0d0e21e | 2932 | |
f5d5a27c | 2933 | name = SvPV(meth, namelen); |
3280af22 | 2934 | sv = *(PL_stack_base + TOPMARK + 1); |
f5d5a27c | 2935 | |
4f1b7578 SC |
2936 | if (!sv) |
2937 | Perl_croak(aTHX_ "Can't call method \"%s\" on an undefined value", name); | |
2938 | ||
16d20bd9 AD |
2939 | if (SvGMAGICAL(sv)) |
2940 | mg_get(sv); | |
a0d0e21e | 2941 | if (SvROK(sv)) |
16d20bd9 | 2942 | ob = (SV*)SvRV(sv); |
a0d0e21e LW |
2943 | else { |
2944 | GV* iogv; | |
a0d0e21e | 2945 | |
56304f61 | 2946 | packname = Nullch; |
a0d0e21e | 2947 | if (!SvOK(sv) || |
56304f61 | 2948 | !(packname = SvPV(sv, packlen)) || |
a0d0e21e LW |
2949 | !(iogv = gv_fetchpv(packname, FALSE, SVt_PVIO)) || |
2950 | !(ob=(SV*)GvIO(iogv))) | |
2951 | { | |
1c846c1f | 2952 | if (!packname || |
7e2040f0 | 2953 | ((*(U8*)packname >= 0xc0 && DO_UTF8(sv)) |
b86a2fa7 | 2954 | ? !isIDFIRST_utf8((U8*)packname) |
834a4ddd LW |
2955 | : !isIDFIRST(*packname) |
2956 | )) | |
2957 | { | |
f5d5a27c CS |
2958 | Perl_croak(aTHX_ "Can't call method \"%s\" %s", name, |
2959 | SvOK(sv) ? "without a package or object reference" | |
2960 | : "on an undefined value"); | |
834a4ddd | 2961 | } |
56304f61 | 2962 | stash = gv_stashpvn(packname, packlen, TRUE); |
ac91690f | 2963 | goto fetch; |
a0d0e21e | 2964 | } |
3280af22 | 2965 | *(PL_stack_base + TOPMARK + 1) = sv_2mortal(newRV((SV*)iogv)); |
a0d0e21e LW |
2966 | } |
2967 | ||
f0d43078 GS |
2968 | if (!ob || !(SvOBJECT(ob) |
2969 | || (SvTYPE(ob) == SVt_PVGV && (ob = (SV*)GvIO((GV*)ob)) | |
2970 | && SvOBJECT(ob)))) | |
2971 | { | |
f5d5a27c CS |
2972 | Perl_croak(aTHX_ "Can't call method \"%s\" on unblessed reference", |
2973 | name); | |
f0d43078 | 2974 | } |
a0d0e21e | 2975 | |
56304f61 | 2976 | stash = SvSTASH(ob); |
a0d0e21e | 2977 | |
ac91690f | 2978 | fetch: |
f5d5a27c CS |
2979 | /* shortcut for simple names */ |
2980 | if (hashp) { | |
2981 | HE* he = hv_fetch_ent(stash, meth, 0, *hashp); | |
2982 | if (he) { | |
2983 | gv = (GV*)HeVAL(he); | |
2984 | if (isGV(gv) && GvCV(gv) && | |
2985 | (!GvCVGEN(gv) || GvCVGEN(gv) == PL_sub_generation)) | |
2986 | return (SV*)GvCV(gv); | |
2987 | } | |
2988 | } | |
2989 | ||
ac91690f | 2990 | gv = gv_fetchmethod(stash, name); |
56304f61 CS |
2991 | if (!gv) { |
2992 | char* leaf = name; | |
2993 | char* sep = Nullch; | |
2994 | char* p; | |
c1899e02 | 2995 | GV* gv; |
56304f61 CS |
2996 | |
2997 | for (p = name; *p; p++) { | |
2998 | if (*p == '\'') | |
2999 | sep = p, leaf = p + 1; | |
3000 | else if (*p == ':' && *(p + 1) == ':') | |
3001 | sep = p, leaf = p + 2; | |
3002 | } | |
3003 | if (!sep || ((sep - name) == 5 && strnEQ(name, "SUPER", 5))) { | |
1d7c1841 | 3004 | packname = sep ? CopSTASHPV(PL_curcop) : HvNAME(stash); |
56304f61 CS |
3005 | packlen = strlen(packname); |
3006 | } | |
3007 | else { | |
3008 | packname = name; | |
3009 | packlen = sep - name; | |
3010 | } | |
c1899e02 GS |
3011 | gv = gv_fetchpv(packname, 0, SVt_PVHV); |
3012 | if (gv && isGV(gv)) { | |
3013 | Perl_croak(aTHX_ | |
3014 | "Can't locate object method \"%s\" via package \"%s\"", | |
3015 | leaf, packname); | |
3016 | } | |
3017 | else { | |
3018 | Perl_croak(aTHX_ | |
f6e565ef | 3019 | "Can't locate object method \"%s\" via package \"%s\"" |
c1899e02 GS |
3020 | " (perhaps you forgot to load \"%s\"?)", |
3021 | leaf, packname, packname); | |
3022 | } | |
56304f61 | 3023 | } |
f5d5a27c | 3024 | return isGV(gv) ? (SV*)GvCV(gv) : (SV*)gv; |
a0d0e21e | 3025 | } |
22239a37 | 3026 | |
51371543 GS |
3027 | #ifdef USE_THREADS |
3028 | static void | |
3029 | unset_cvowner(pTHXo_ void *cvarg) | |
3030 | { | |
3031 | register CV* cv = (CV *) cvarg; | |
51371543 | 3032 | |
bf49b057 | 3033 | DEBUG_S((PerlIO_printf(Perl_debug_log, "%p unsetting CvOWNER of %p:%s\n", |
51371543 GS |
3034 | thr, cv, SvPEEK((SV*)cv)))); |
3035 | MUTEX_LOCK(CvMUTEXP(cv)); | |
3036 | DEBUG_S(if (CvDEPTH(cv) != 0) | |
bf49b057 | 3037 | PerlIO_printf(Perl_debug_log, "depth %ld != 0\n", |
51371543 GS |
3038 | CvDEPTH(cv));); |
3039 | assert(thr == CvOWNER(cv)); | |
3040 | CvOWNER(cv) = 0; | |
3041 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
3042 | SvREFCNT_dec(cv); | |
3043 | } | |
3044 | #endif /* USE_THREADS */ |