Commit | Line | Data |
a0d0e21e |
1 | /* scope.c |
79072805 |
2 | * |
9607fc9c |
3 | * Copyright (c) 1991-1997, Larry Wall |
79072805 |
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 | * |
a0d0e21e |
8 | */ |
9 | |
10 | /* |
11 | * "For the fashion of Minas Tirith was such that it was built on seven |
12 | * levels..." |
79072805 |
13 | */ |
14 | |
15 | #include "EXTERN.h" |
16 | #include "perl.h" |
17 | |
a0d0e21e |
18 | SV** |
19 | stack_grow(sp, p, n) |
20 | SV** sp; |
21 | SV** p; |
22 | int n; |
23 | { |
11343788 |
24 | dTHR; |
a0d0e21e |
25 | stack_sp = sp; |
1f96a9ed |
26 | av_extend(curstack, (p - stack_base) + (n) + 128); |
a0d0e21e |
27 | return stack_sp; |
28 | } |
29 | |
79072805 |
30 | I32 |
31 | cxinc() |
32 | { |
11343788 |
33 | dTHR; |
79072805 |
34 | cxstack_max = cxstack_max * 3 / 2; |
a38d6535 |
35 | Renew(cxstack, cxstack_max + 1, CONTEXT); /* XXX should fix CXINC macro */ |
79072805 |
36 | return cxstack_ix + 1; |
37 | } |
38 | |
39 | void |
40 | push_return(retop) |
41 | OP *retop; |
42 | { |
11343788 |
43 | dTHR; |
79072805 |
44 | if (retstack_ix == retstack_max) { |
45 | retstack_max = retstack_max * 3 / 2; |
46 | Renew(retstack, retstack_max, OP*); |
47 | } |
48 | retstack[retstack_ix++] = retop; |
49 | } |
50 | |
51 | OP * |
52 | pop_return() |
53 | { |
11343788 |
54 | dTHR; |
79072805 |
55 | if (retstack_ix > 0) |
56 | return retstack[--retstack_ix]; |
57 | else |
58 | return Nullop; |
59 | } |
60 | |
61 | void |
62 | push_scope() |
63 | { |
11343788 |
64 | dTHR; |
79072805 |
65 | if (scopestack_ix == scopestack_max) { |
66 | scopestack_max = scopestack_max * 3 / 2; |
67 | Renew(scopestack, scopestack_max, I32); |
68 | } |
69 | scopestack[scopestack_ix++] = savestack_ix; |
70 | |
71 | } |
72 | |
73 | void |
74 | pop_scope() |
75 | { |
11343788 |
76 | dTHR; |
79072805 |
77 | I32 oldsave = scopestack[--scopestack_ix]; |
8990e307 |
78 | LEAVE_SCOPE(oldsave); |
79072805 |
79 | } |
80 | |
81 | void |
a0d0e21e |
82 | markstack_grow() |
83 | { |
11343788 |
84 | dTHR; |
a0d0e21e |
85 | I32 oldmax = markstack_max - markstack; |
86 | I32 newmax = oldmax * 3 / 2; |
87 | |
88 | Renew(markstack, newmax, I32); |
89 | markstack_ptr = markstack + oldmax; |
90 | markstack_max = markstack + newmax; |
91 | } |
92 | |
93 | void |
79072805 |
94 | savestack_grow() |
95 | { |
11343788 |
96 | dTHR; |
79072805 |
97 | savestack_max = savestack_max * 3 / 2; |
98 | Renew(savestack, savestack_max, ANY); |
99 | } |
100 | |
101 | void |
102 | free_tmps() |
103 | { |
11343788 |
104 | dTHR; |
79072805 |
105 | /* XXX should tmps_floor live in cxstack? */ |
106 | I32 myfloor = tmps_floor; |
107 | while (tmps_ix > myfloor) { /* clean up after last statement */ |
108 | SV* sv = tmps_stack[tmps_ix]; |
109 | tmps_stack[tmps_ix--] = Nullsv; |
463ee0b2 |
110 | if (sv) { |
111 | #ifdef DEBUGGING |
112 | SvTEMP_off(sv); |
113 | #endif |
8990e307 |
114 | SvREFCNT_dec(sv); /* note, can modify tmps_ix!!! */ |
463ee0b2 |
115 | } |
79072805 |
116 | } |
117 | } |
118 | |
7a4c00b4 |
119 | static SV * |
120 | save_scalar_at(sptr) |
121 | SV **sptr; |
79072805 |
122 | { |
11343788 |
123 | dTHR; |
79072805 |
124 | register SV *sv; |
7a4c00b4 |
125 | SV *osv = *sptr; |
79072805 |
126 | |
7a4c00b4 |
127 | sv = *sptr = NEWSV(0,0); |
a0d0e21e |
128 | if (SvTYPE(osv) >= SVt_PVMG && SvMAGIC(osv) && SvTYPE(osv) != SVt_PVGV) { |
79072805 |
129 | sv_upgrade(sv, SvTYPE(osv)); |
a0d0e21e |
130 | if (SvGMAGICAL(osv)) { |
748a9306 |
131 | MAGIC* mg; |
132 | bool oldtainted = tainted; |
a0d0e21e |
133 | mg_get(osv); |
748a9306 |
134 | if (tainting && tainted && (mg = mg_find(osv, 't'))) { |
135 | SAVESPTR(mg->mg_obj); |
136 | mg->mg_obj = osv; |
137 | } |
a0d0e21e |
138 | SvFLAGS(osv) |= (SvFLAGS(osv) & |
139 | (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
748a9306 |
140 | tainted = oldtainted; |
a0d0e21e |
141 | } |
79072805 |
142 | SvMAGIC(sv) = SvMAGIC(osv); |
a0d0e21e |
143 | SvFLAGS(sv) |= SvMAGICAL(osv); |
748a9306 |
144 | localizing = 1; |
79072805 |
145 | SvSETMAGIC(sv); |
748a9306 |
146 | localizing = 0; |
79072805 |
147 | } |
148 | return sv; |
149 | } |
150 | |
7a4c00b4 |
151 | SV * |
152 | save_scalar(gv) |
153 | GV *gv; |
154 | { |
11343788 |
155 | dTHR; |
7a4c00b4 |
156 | SSCHECK(3); |
157 | SSPUSHPTR(gv); |
158 | SSPUSHPTR(GvSV(gv)); |
159 | SSPUSHINT(SAVEt_SV); |
160 | return save_scalar_at(&GvSV(gv)); |
161 | } |
162 | |
163 | SV* |
164 | save_svref(sptr) |
165 | SV **sptr; |
166 | { |
11343788 |
167 | dTHR; |
7a4c00b4 |
168 | SSCHECK(3); |
169 | SSPUSHPTR(sptr); |
170 | SSPUSHPTR(*sptr); |
171 | SSPUSHINT(SAVEt_SVREF); |
172 | return save_scalar_at(sptr); |
173 | } |
174 | |
79072805 |
175 | void |
5f05dabc |
176 | save_gp(gv, empty) |
79072805 |
177 | GV *gv; |
5f05dabc |
178 | I32 empty; |
79072805 |
179 | { |
e858de61 |
180 | dTHR; |
79072805 |
181 | SSCHECK(3); |
4633a7c4 |
182 | SSPUSHPTR(SvREFCNT_inc(gv)); |
5f05dabc |
183 | SSPUSHPTR(GvGP(gv)); |
79072805 |
184 | SSPUSHINT(SAVEt_GP); |
185 | |
5f05dabc |
186 | if (empty) { |
187 | register GP *gp; |
188 | Newz(602, gp, 1, GP); |
44a8e56a |
189 | GvGP(gv) = gp_ref(gp); |
5f05dabc |
190 | GvSV(gv) = NEWSV(72,0); |
191 | GvLINE(gv) = curcop->cop_line; |
192 | GvEGV(gv) = gv; |
193 | } |
194 | else { |
44a8e56a |
195 | gp_ref(GvGP(gv)); |
5f05dabc |
196 | GvINTRO_on(gv); |
197 | } |
79072805 |
198 | } |
79072805 |
199 | |
79072805 |
200 | AV * |
201 | save_ary(gv) |
202 | GV *gv; |
203 | { |
11343788 |
204 | dTHR; |
79072805 |
205 | SSCHECK(3); |
206 | SSPUSHPTR(gv); |
207 | SSPUSHPTR(GvAVn(gv)); |
208 | SSPUSHINT(SAVEt_AV); |
209 | |
210 | GvAV(gv) = Null(AV*); |
211 | return GvAVn(gv); |
212 | } |
213 | |
214 | HV * |
215 | save_hash(gv) |
216 | GV *gv; |
217 | { |
11343788 |
218 | dTHR; |
79072805 |
219 | SSCHECK(3); |
220 | SSPUSHPTR(gv); |
221 | SSPUSHPTR(GvHVn(gv)); |
222 | SSPUSHINT(SAVEt_HV); |
223 | |
224 | GvHV(gv) = Null(HV*); |
225 | return GvHVn(gv); |
226 | } |
227 | |
228 | void |
229 | save_item(item) |
230 | register SV *item; |
231 | { |
11343788 |
232 | dTHR; |
79072805 |
233 | register SV *sv; |
234 | |
235 | SSCHECK(3); |
236 | SSPUSHPTR(item); /* remember the pointer */ |
237 | sv = NEWSV(0,0); |
238 | sv_setsv(sv,item); |
239 | SSPUSHPTR(sv); /* remember the value */ |
240 | SSPUSHINT(SAVEt_ITEM); |
241 | } |
242 | |
243 | void |
244 | save_int(intp) |
245 | int *intp; |
246 | { |
11343788 |
247 | dTHR; |
79072805 |
248 | SSCHECK(3); |
249 | SSPUSHINT(*intp); |
250 | SSPUSHPTR(intp); |
251 | SSPUSHINT(SAVEt_INT); |
252 | } |
253 | |
254 | void |
85e6fe83 |
255 | save_long(longp) |
256 | long *longp; |
257 | { |
11343788 |
258 | dTHR; |
85e6fe83 |
259 | SSCHECK(3); |
260 | SSPUSHLONG(*longp); |
261 | SSPUSHPTR(longp); |
262 | SSPUSHINT(SAVEt_LONG); |
263 | } |
264 | |
265 | void |
79072805 |
266 | save_I32(intp) |
267 | I32 *intp; |
268 | { |
11343788 |
269 | dTHR; |
79072805 |
270 | SSCHECK(3); |
271 | SSPUSHINT(*intp); |
272 | SSPUSHPTR(intp); |
273 | SSPUSHINT(SAVEt_I32); |
274 | } |
275 | |
a0d0e21e |
276 | void |
55497cff |
277 | save_I16(intp) |
278 | I16 *intp; |
279 | { |
e858de61 |
280 | dTHR; |
55497cff |
281 | SSCHECK(3); |
282 | SSPUSHINT(*intp); |
283 | SSPUSHPTR(intp); |
284 | SSPUSHINT(SAVEt_I16); |
285 | } |
286 | |
287 | void |
a0d0e21e |
288 | save_iv(ivp) |
289 | IV *ivp; |
290 | { |
11343788 |
291 | dTHR; |
a0d0e21e |
292 | SSCHECK(3); |
4aa0a1f7 |
293 | SSPUSHIV(*ivp); |
a0d0e21e |
294 | SSPUSHPTR(ivp); |
295 | SSPUSHINT(SAVEt_IV); |
296 | } |
297 | |
85e6fe83 |
298 | /* Cannot use save_sptr() to store a char* since the SV** cast will |
299 | * force word-alignment and we'll miss the pointer. |
300 | */ |
301 | void |
302 | save_pptr(pptr) |
303 | char **pptr; |
304 | { |
11343788 |
305 | dTHR; |
85e6fe83 |
306 | SSCHECK(3); |
307 | SSPUSHPTR(*pptr); |
308 | SSPUSHPTR(pptr); |
309 | SSPUSHINT(SAVEt_PPTR); |
310 | } |
311 | |
79072805 |
312 | void |
313 | save_sptr(sptr) |
314 | SV **sptr; |
315 | { |
11343788 |
316 | dTHR; |
79072805 |
317 | SSCHECK(3); |
318 | SSPUSHPTR(*sptr); |
319 | SSPUSHPTR(sptr); |
320 | SSPUSHINT(SAVEt_SPTR); |
321 | } |
322 | |
323 | void |
324 | save_nogv(gv) |
325 | GV *gv; |
326 | { |
11343788 |
327 | dTHR; |
79072805 |
328 | SSCHECK(2); |
329 | SSPUSHPTR(gv); |
330 | SSPUSHINT(SAVEt_NSTAB); |
331 | } |
332 | |
333 | void |
334 | save_hptr(hptr) |
335 | HV **hptr; |
336 | { |
11343788 |
337 | dTHR; |
79072805 |
338 | SSCHECK(3); |
85e6fe83 |
339 | SSPUSHPTR(*hptr); |
79072805 |
340 | SSPUSHPTR(hptr); |
341 | SSPUSHINT(SAVEt_HPTR); |
342 | } |
343 | |
344 | void |
345 | save_aptr(aptr) |
346 | AV **aptr; |
347 | { |
11343788 |
348 | dTHR; |
79072805 |
349 | SSCHECK(3); |
85e6fe83 |
350 | SSPUSHPTR(*aptr); |
79072805 |
351 | SSPUSHPTR(aptr); |
352 | SSPUSHINT(SAVEt_APTR); |
353 | } |
354 | |
355 | void |
8990e307 |
356 | save_freesv(sv) |
357 | SV *sv; |
358 | { |
11343788 |
359 | dTHR; |
8990e307 |
360 | SSCHECK(2); |
361 | SSPUSHPTR(sv); |
362 | SSPUSHINT(SAVEt_FREESV); |
363 | } |
364 | |
365 | void |
11343788 |
366 | save_freeop(o) |
367 | OP *o; |
8990e307 |
368 | { |
11343788 |
369 | dTHR; |
8990e307 |
370 | SSCHECK(2); |
11343788 |
371 | SSPUSHPTR(o); |
8990e307 |
372 | SSPUSHINT(SAVEt_FREEOP); |
373 | } |
374 | |
375 | void |
376 | save_freepv(pv) |
377 | char *pv; |
378 | { |
11343788 |
379 | dTHR; |
8990e307 |
380 | SSCHECK(2); |
381 | SSPUSHPTR(pv); |
382 | SSPUSHINT(SAVEt_FREEPV); |
383 | } |
384 | |
385 | void |
386 | save_clearsv(svp) |
387 | SV** svp; |
388 | { |
11343788 |
389 | dTHR; |
8990e307 |
390 | SSCHECK(2); |
4aa0a1f7 |
391 | SSPUSHLONG((long)(svp-curpad)); |
8990e307 |
392 | SSPUSHINT(SAVEt_CLEARSV); |
393 | } |
394 | |
395 | void |
396 | save_delete(hv,key,klen) |
397 | HV *hv; |
398 | char *key; |
399 | I32 klen; |
400 | { |
11343788 |
401 | dTHR; |
8990e307 |
402 | SSCHECK(4); |
403 | SSPUSHINT(klen); |
404 | SSPUSHPTR(key); |
405 | SSPUSHPTR(hv); |
406 | SSPUSHINT(SAVEt_DELETE); |
407 | } |
408 | |
409 | void |
79072805 |
410 | save_list(sarg,maxsarg) |
411 | register SV **sarg; |
412 | I32 maxsarg; |
413 | { |
11343788 |
414 | dTHR; |
79072805 |
415 | register SV *sv; |
416 | register I32 i; |
417 | |
418 | SSCHECK(3 * maxsarg); |
419 | for (i = 1; i <= maxsarg; i++) { |
420 | SSPUSHPTR(sarg[i]); /* remember the pointer */ |
421 | sv = NEWSV(0,0); |
422 | sv_setsv(sv,sarg[i]); |
423 | SSPUSHPTR(sv); /* remember the value */ |
424 | SSPUSHINT(SAVEt_ITEM); |
425 | } |
426 | } |
427 | |
428 | void |
a0d0e21e |
429 | save_destructor(f,p) |
430 | void (*f) _((void*)); |
431 | void* p; |
432 | { |
11343788 |
433 | dTHR; |
a0d0e21e |
434 | SSCHECK(3); |
435 | SSPUSHDPTR(f); |
436 | SSPUSHPTR(p); |
437 | SSPUSHINT(SAVEt_DESTRUCTOR); |
438 | } |
439 | |
440 | void |
462e5cf6 |
441 | save_op() |
442 | { |
443 | dTHR; |
444 | SSCHECK(2); |
445 | SSPUSHPTR(op); |
446 | SSPUSHINT(SAVEt_OP); |
447 | } |
448 | |
449 | void |
79072805 |
450 | leave_scope(base) |
451 | I32 base; |
452 | { |
11343788 |
453 | dTHR; |
79072805 |
454 | register SV *sv; |
455 | register SV *value; |
456 | register GV *gv; |
457 | register AV *av; |
458 | register HV *hv; |
459 | register void* ptr; |
460 | |
461 | if (base < -1) |
463ee0b2 |
462 | croak("panic: corrupt saved stack index"); |
79072805 |
463 | while (savestack_ix > base) { |
464 | switch (SSPOPINT) { |
465 | case SAVEt_ITEM: /* normal string */ |
466 | value = (SV*)SSPOPPTR; |
467 | sv = (SV*)SSPOPPTR; |
468 | sv_replace(sv,value); |
748a9306 |
469 | localizing = 2; |
79072805 |
470 | SvSETMAGIC(sv); |
748a9306 |
471 | localizing = 0; |
79072805 |
472 | break; |
473 | case SAVEt_SV: /* scalar reference */ |
474 | value = (SV*)SSPOPPTR; |
475 | gv = (GV*)SSPOPPTR; |
7a4c00b4 |
476 | ptr = &GvSV(gv); |
477 | goto restore_sv; |
79072805 |
478 | case SAVEt_SVREF: /* scalar reference */ |
7a4c00b4 |
479 | value = (SV*)SSPOPPTR; |
79072805 |
480 | ptr = SSPOPPTR; |
7a4c00b4 |
481 | restore_sv: |
79072805 |
482 | sv = *(SV**)ptr; |
748a9306 |
483 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv) && |
484 | SvTYPE(sv) != SVt_PVGV) |
485 | { |
a0d0e21e |
486 | (void)SvUPGRADE(value, SvTYPE(sv)); |
487 | SvMAGIC(value) = SvMAGIC(sv); |
488 | SvFLAGS(value) |= SvMAGICAL(sv); |
489 | SvMAGICAL_off(sv); |
79072805 |
490 | SvMAGIC(sv) = 0; |
a0d0e21e |
491 | } |
7a4c00b4 |
492 | else if (SvTYPE(value) >= SVt_PVMG && SvMAGIC(value) && |
493 | SvTYPE(value) != SVt_PVGV) |
494 | { |
495 | SvFLAGS(value) |= (SvFLAGS(value) & |
496 | (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
497 | SvMAGICAL_off(value); |
498 | SvMAGIC(value) = 0; |
499 | } |
8990e307 |
500 | SvREFCNT_dec(sv); |
a0d0e21e |
501 | *(SV**)ptr = value; |
748a9306 |
502 | localizing = 2; |
a0d0e21e |
503 | SvSETMAGIC(value); |
748a9306 |
504 | localizing = 0; |
79072805 |
505 | break; |
506 | case SAVEt_AV: /* array reference */ |
507 | av = (AV*)SSPOPPTR; |
508 | gv = (GV*)SSPOPPTR; |
8990e307 |
509 | SvREFCNT_dec(GvAV(gv)); |
79072805 |
510 | GvAV(gv) = av; |
511 | break; |
512 | case SAVEt_HV: /* hash reference */ |
513 | hv = (HV*)SSPOPPTR; |
514 | gv = (GV*)SSPOPPTR; |
8990e307 |
515 | SvREFCNT_dec(GvHV(gv)); |
79072805 |
516 | GvHV(gv) = hv; |
517 | break; |
518 | case SAVEt_INT: /* int reference */ |
519 | ptr = SSPOPPTR; |
520 | *(int*)ptr = (int)SSPOPINT; |
521 | break; |
85e6fe83 |
522 | case SAVEt_LONG: /* long reference */ |
523 | ptr = SSPOPPTR; |
524 | *(long*)ptr = (long)SSPOPLONG; |
525 | break; |
79072805 |
526 | case SAVEt_I32: /* I32 reference */ |
527 | ptr = SSPOPPTR; |
528 | *(I32*)ptr = (I32)SSPOPINT; |
529 | break; |
55497cff |
530 | case SAVEt_I16: /* I16 reference */ |
531 | ptr = SSPOPPTR; |
532 | *(I16*)ptr = (I16)SSPOPINT; |
533 | break; |
a0d0e21e |
534 | case SAVEt_IV: /* IV reference */ |
535 | ptr = SSPOPPTR; |
536 | *(IV*)ptr = (IV)SSPOPIV; |
537 | break; |
79072805 |
538 | case SAVEt_SPTR: /* SV* reference */ |
539 | ptr = SSPOPPTR; |
540 | *(SV**)ptr = (SV*)SSPOPPTR; |
541 | break; |
85e6fe83 |
542 | case SAVEt_PPTR: /* char* reference */ |
543 | ptr = SSPOPPTR; |
544 | *(char**)ptr = (char*)SSPOPPTR; |
545 | break; |
79072805 |
546 | case SAVEt_HPTR: /* HV* reference */ |
547 | ptr = SSPOPPTR; |
548 | *(HV**)ptr = (HV*)SSPOPPTR; |
549 | break; |
550 | case SAVEt_APTR: /* AV* reference */ |
551 | ptr = SSPOPPTR; |
552 | *(AV**)ptr = (AV*)SSPOPPTR; |
553 | break; |
554 | case SAVEt_NSTAB: |
555 | gv = (GV*)SSPOPPTR; |
1f96a9ed |
556 | (void)sv_clear((SV*)gv); |
79072805 |
557 | break; |
558 | case SAVEt_GP: /* scalar reference */ |
559 | ptr = SSPOPPTR; |
560 | gv = (GV*)SSPOPPTR; |
561 | gp_free(gv); |
562 | GvGP(gv) = (GP*)ptr; |
4633a7c4 |
563 | SvREFCNT_dec(gv); |
79072805 |
564 | break; |
8990e307 |
565 | case SAVEt_FREESV: |
566 | ptr = SSPOPPTR; |
567 | SvREFCNT_dec((SV*)ptr); |
568 | break; |
569 | case SAVEt_FREEOP: |
570 | ptr = SSPOPPTR; |
46fc3d4c |
571 | if (comppad) |
572 | curpad = AvARRAY(comppad); |
8990e307 |
573 | op_free((OP*)ptr); |
574 | break; |
575 | case SAVEt_FREEPV: |
576 | ptr = SSPOPPTR; |
577 | Safefree((char*)ptr); |
578 | break; |
579 | case SAVEt_CLEARSV: |
4aa0a1f7 |
580 | ptr = (void*)&curpad[SSPOPLONG]; |
8990e307 |
581 | sv = *(SV**)ptr; |
a0d0e21e |
582 | if (SvREFCNT(sv) <= 1) { /* Can clear pad variable in place. */ |
8990e307 |
583 | if (SvTHINKFIRST(sv)) { |
584 | if (SvREADONLY(sv)) |
585 | croak("panic: leave_scope clearsv"); |
586 | if (SvROK(sv)) |
587 | sv_unref(sv); |
588 | } |
a0d0e21e |
589 | if (SvMAGICAL(sv)) |
590 | mg_free(sv); |
8990e307 |
591 | |
592 | switch (SvTYPE(sv)) { |
593 | case SVt_NULL: |
594 | break; |
595 | case SVt_PVAV: |
44a8e56a |
596 | av_clear((AV*)sv); |
8990e307 |
597 | break; |
598 | case SVt_PVHV: |
44a8e56a |
599 | hv_clear((HV*)sv); |
8990e307 |
600 | break; |
601 | case SVt_PVCV: |
5377b701 |
602 | croak("panic: leave_scope pad code"); |
603 | case SVt_RV: |
604 | case SVt_IV: |
605 | case SVt_NV: |
606 | (void)SvOK_off(sv); |
8990e307 |
607 | break; |
608 | default: |
a0d0e21e |
609 | (void)SvOK_off(sv); |
5377b701 |
610 | (void)SvOOK_off(sv); |
8990e307 |
611 | break; |
612 | } |
613 | } |
614 | else { /* Someone has a claim on this, so abandon it. */ |
4aa0a1f7 |
615 | U32 padflags = SvFLAGS(sv) & (SVs_PADBUSY|SVs_PADMY|SVs_PADTMP); |
8990e307 |
616 | SvREFCNT_dec(sv); /* Cast current value to the winds. */ |
617 | switch (SvTYPE(sv)) { /* Console ourselves with a new value */ |
618 | case SVt_PVAV: *(SV**)ptr = (SV*)newAV(); break; |
619 | case SVt_PVHV: *(SV**)ptr = (SV*)newHV(); break; |
620 | default: *(SV**)ptr = NEWSV(0,0); break; |
621 | } |
4aa0a1f7 |
622 | SvFLAGS(*(SV**)ptr) |= padflags; /* preserve pad nature */ |
8990e307 |
623 | } |
624 | break; |
625 | case SAVEt_DELETE: |
626 | ptr = SSPOPPTR; |
627 | hv = (HV*)ptr; |
628 | ptr = SSPOPPTR; |
748a9306 |
629 | (void)hv_delete(hv, (char*)ptr, (U32)SSPOPINT, G_DISCARD); |
adbc6bb1 |
630 | Safefree(ptr); |
8990e307 |
631 | break; |
a0d0e21e |
632 | case SAVEt_DESTRUCTOR: |
633 | ptr = SSPOPPTR; |
634 | (*SSPOPDPTR)(ptr); |
635 | break; |
636 | case SAVEt_REGCONTEXT: |
8e07c86e |
637 | { |
638 | I32 delta = SSPOPINT; |
639 | savestack_ix -= delta; /* regexp must have croaked */ |
640 | } |
a0d0e21e |
641 | break; |
55497cff |
642 | case SAVEt_STACK_POS: /* Position on Perl stack */ |
643 | { |
644 | I32 delta = SSPOPINT; |
645 | stack_sp = stack_base + delta; |
646 | } |
647 | break; |
462e5cf6 |
648 | case SAVEt_OP: |
649 | op = (OP*)SSPOPPTR; |
650 | break; |
79072805 |
651 | default: |
463ee0b2 |
652 | croak("panic: leave_scope inconsistency"); |
79072805 |
653 | } |
654 | } |
655 | } |
8990e307 |
656 | |
657 | #ifdef DEBUGGING |
1f96a9ed |
658 | |
8990e307 |
659 | void |
660 | cx_dump(cx) |
661 | CONTEXT* cx; |
662 | { |
11343788 |
663 | dTHR; |
760ac839 |
664 | PerlIO_printf(Perl_debug_log, "CX %d = %s\n", cx - cxstack, block_type[cx->cx_type]); |
8990e307 |
665 | if (cx->cx_type != CXt_SUBST) { |
760ac839 |
666 | PerlIO_printf(Perl_debug_log, "BLK_OLDSP = %ld\n", (long)cx->blk_oldsp); |
667 | PerlIO_printf(Perl_debug_log, "BLK_OLDCOP = 0x%lx\n", (long)cx->blk_oldcop); |
668 | PerlIO_printf(Perl_debug_log, "BLK_OLDMARKSP = %ld\n", (long)cx->blk_oldmarksp); |
669 | PerlIO_printf(Perl_debug_log, "BLK_OLDSCOPESP = %ld\n", (long)cx->blk_oldscopesp); |
670 | PerlIO_printf(Perl_debug_log, "BLK_OLDRETSP = %ld\n", (long)cx->blk_oldretsp); |
671 | PerlIO_printf(Perl_debug_log, "BLK_OLDPM = 0x%lx\n", (long)cx->blk_oldpm); |
672 | PerlIO_printf(Perl_debug_log, "BLK_GIMME = %s\n", cx->blk_gimme ? "LIST" : "SCALAR"); |
8990e307 |
673 | } |
674 | switch (cx->cx_type) { |
675 | case CXt_NULL: |
676 | case CXt_BLOCK: |
677 | break; |
678 | case CXt_SUB: |
760ac839 |
679 | PerlIO_printf(Perl_debug_log, "BLK_SUB.CV = 0x%lx\n", |
8990e307 |
680 | (long)cx->blk_sub.cv); |
760ac839 |
681 | PerlIO_printf(Perl_debug_log, "BLK_SUB.GV = 0x%lx\n", |
8990e307 |
682 | (long)cx->blk_sub.gv); |
760ac839 |
683 | PerlIO_printf(Perl_debug_log, "BLK_SUB.DFOUTGV = 0x%lx\n", |
8990e307 |
684 | (long)cx->blk_sub.dfoutgv); |
760ac839 |
685 | PerlIO_printf(Perl_debug_log, "BLK_SUB.OLDDEPTH = %ld\n", |
8990e307 |
686 | (long)cx->blk_sub.olddepth); |
760ac839 |
687 | PerlIO_printf(Perl_debug_log, "BLK_SUB.HASARGS = %d\n", |
8990e307 |
688 | (int)cx->blk_sub.hasargs); |
689 | break; |
690 | case CXt_EVAL: |
760ac839 |
691 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_IN_EVAL = %ld\n", |
8990e307 |
692 | (long)cx->blk_eval.old_in_eval); |
760ac839 |
693 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_OP_TYPE = %s (%s)\n", |
c07a80fd |
694 | op_name[cx->blk_eval.old_op_type], |
695 | op_desc[cx->blk_eval.old_op_type]); |
760ac839 |
696 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_NAME = %s\n", |
8990e307 |
697 | cx->blk_eval.old_name); |
760ac839 |
698 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_EVAL_ROOT = 0x%lx\n", |
8990e307 |
699 | (long)cx->blk_eval.old_eval_root); |
700 | break; |
701 | |
702 | case CXt_LOOP: |
760ac839 |
703 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.LABEL = %s\n", |
8990e307 |
704 | cx->blk_loop.label); |
760ac839 |
705 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.RESETSP = %ld\n", |
8990e307 |
706 | (long)cx->blk_loop.resetsp); |
760ac839 |
707 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.REDO_OP = 0x%lx\n", |
8990e307 |
708 | (long)cx->blk_loop.redo_op); |
760ac839 |
709 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.NEXT_OP = 0x%lx\n", |
8990e307 |
710 | (long)cx->blk_loop.next_op); |
760ac839 |
711 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.LAST_OP = 0x%lx\n", |
8990e307 |
712 | (long)cx->blk_loop.last_op); |
760ac839 |
713 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERIX = %ld\n", |
8990e307 |
714 | (long)cx->blk_loop.iterix); |
760ac839 |
715 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERARY = 0x%lx\n", |
8990e307 |
716 | (long)cx->blk_loop.iterary); |
760ac839 |
717 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERVAR = 0x%lx\n", |
8990e307 |
718 | (long)cx->blk_loop.itervar); |
719 | if (cx->blk_loop.itervar) |
760ac839 |
720 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERSAVE = 0x%lx\n", |
8990e307 |
721 | (long)cx->blk_loop.itersave); |
7a4c00b4 |
722 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERLVAL = 0x%lx\n", |
723 | (long)cx->blk_loop.iterlval); |
8990e307 |
724 | break; |
725 | |
726 | case CXt_SUBST: |
760ac839 |
727 | PerlIO_printf(Perl_debug_log, "SB_ITERS = %ld\n", |
8990e307 |
728 | (long)cx->sb_iters); |
760ac839 |
729 | PerlIO_printf(Perl_debug_log, "SB_MAXITERS = %ld\n", |
8990e307 |
730 | (long)cx->sb_maxiters); |
760ac839 |
731 | PerlIO_printf(Perl_debug_log, "SB_SAFEBASE = %ld\n", |
8990e307 |
732 | (long)cx->sb_safebase); |
760ac839 |
733 | PerlIO_printf(Perl_debug_log, "SB_ONCE = %ld\n", |
8990e307 |
734 | (long)cx->sb_once); |
760ac839 |
735 | PerlIO_printf(Perl_debug_log, "SB_ORIG = %s\n", |
8990e307 |
736 | cx->sb_orig); |
760ac839 |
737 | PerlIO_printf(Perl_debug_log, "SB_DSTR = 0x%lx\n", |
8990e307 |
738 | (long)cx->sb_dstr); |
760ac839 |
739 | PerlIO_printf(Perl_debug_log, "SB_TARG = 0x%lx\n", |
8990e307 |
740 | (long)cx->sb_targ); |
760ac839 |
741 | PerlIO_printf(Perl_debug_log, "SB_S = 0x%lx\n", |
8990e307 |
742 | (long)cx->sb_s); |
760ac839 |
743 | PerlIO_printf(Perl_debug_log, "SB_M = 0x%lx\n", |
8990e307 |
744 | (long)cx->sb_m); |
760ac839 |
745 | PerlIO_printf(Perl_debug_log, "SB_STREND = 0x%lx\n", |
8990e307 |
746 | (long)cx->sb_strend); |
c90c0ff4 |
747 | PerlIO_printf(Perl_debug_log, "SB_RXRES = 0x%lx\n", |
748 | (long)cx->sb_rxres); |
8990e307 |
749 | break; |
750 | } |
751 | } |
752 | #endif |