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; |
fb73857a |
181 | SSCHECK(6); |
182 | SSPUSHIV((IV)SvLEN(gv)); |
183 | SvLEN(gv) = 0; /* forget that anything was allocated here */ |
184 | SSPUSHIV((IV)SvCUR(gv)); |
185 | SSPUSHPTR(SvPVX(gv)); |
186 | SvPOK_off(gv); |
4633a7c4 |
187 | SSPUSHPTR(SvREFCNT_inc(gv)); |
5f05dabc |
188 | SSPUSHPTR(GvGP(gv)); |
79072805 |
189 | SSPUSHINT(SAVEt_GP); |
190 | |
5f05dabc |
191 | if (empty) { |
192 | register GP *gp; |
193 | Newz(602, gp, 1, GP); |
44a8e56a |
194 | GvGP(gv) = gp_ref(gp); |
5f05dabc |
195 | GvSV(gv) = NEWSV(72,0); |
196 | GvLINE(gv) = curcop->cop_line; |
197 | GvEGV(gv) = gv; |
198 | } |
199 | else { |
44a8e56a |
200 | gp_ref(GvGP(gv)); |
5f05dabc |
201 | GvINTRO_on(gv); |
202 | } |
79072805 |
203 | } |
79072805 |
204 | |
79072805 |
205 | AV * |
206 | save_ary(gv) |
207 | GV *gv; |
208 | { |
11343788 |
209 | dTHR; |
fb73857a |
210 | AV *oav, *av; |
211 | |
79072805 |
212 | SSCHECK(3); |
213 | SSPUSHPTR(gv); |
fb73857a |
214 | SSPUSHPTR(oav = GvAVn(gv)); |
79072805 |
215 | SSPUSHINT(SAVEt_AV); |
216 | |
217 | GvAV(gv) = Null(AV*); |
fb73857a |
218 | av = GvAVn(gv); |
219 | if (SvMAGIC(oav)) { |
220 | SvMAGIC(av) = SvMAGIC(oav); |
221 | SvFLAGS(av) |= SvMAGICAL(oav); |
222 | SvMAGICAL_off(oav); |
223 | SvMAGIC(oav) = 0; |
224 | localizing = 1; |
225 | SvSETMAGIC((SV*)av); |
226 | localizing = 0; |
227 | } |
228 | return av; |
79072805 |
229 | } |
230 | |
231 | HV * |
232 | save_hash(gv) |
233 | GV *gv; |
234 | { |
11343788 |
235 | dTHR; |
fb73857a |
236 | HV *ohv, *hv; |
237 | |
79072805 |
238 | SSCHECK(3); |
239 | SSPUSHPTR(gv); |
fb73857a |
240 | SSPUSHPTR(ohv = GvHVn(gv)); |
79072805 |
241 | SSPUSHINT(SAVEt_HV); |
242 | |
243 | GvHV(gv) = Null(HV*); |
fb73857a |
244 | hv = GvHVn(gv); |
245 | if (SvMAGIC(ohv)) { |
246 | SvMAGIC(hv) = SvMAGIC(ohv); |
247 | SvFLAGS(hv) |= SvMAGICAL(ohv); |
248 | SvMAGICAL_off(ohv); |
249 | SvMAGIC(ohv) = 0; |
250 | localizing = 1; |
251 | SvSETMAGIC((SV*)hv); |
252 | localizing = 0; |
253 | } |
254 | return hv; |
79072805 |
255 | } |
256 | |
257 | void |
258 | save_item(item) |
259 | register SV *item; |
260 | { |
11343788 |
261 | dTHR; |
79072805 |
262 | register SV *sv; |
263 | |
264 | SSCHECK(3); |
265 | SSPUSHPTR(item); /* remember the pointer */ |
266 | sv = NEWSV(0,0); |
267 | sv_setsv(sv,item); |
268 | SSPUSHPTR(sv); /* remember the value */ |
269 | SSPUSHINT(SAVEt_ITEM); |
270 | } |
271 | |
272 | void |
273 | save_int(intp) |
274 | int *intp; |
275 | { |
11343788 |
276 | dTHR; |
79072805 |
277 | SSCHECK(3); |
278 | SSPUSHINT(*intp); |
279 | SSPUSHPTR(intp); |
280 | SSPUSHINT(SAVEt_INT); |
281 | } |
282 | |
283 | void |
85e6fe83 |
284 | save_long(longp) |
285 | long *longp; |
286 | { |
11343788 |
287 | dTHR; |
85e6fe83 |
288 | SSCHECK(3); |
289 | SSPUSHLONG(*longp); |
290 | SSPUSHPTR(longp); |
291 | SSPUSHINT(SAVEt_LONG); |
292 | } |
293 | |
294 | void |
79072805 |
295 | save_I32(intp) |
296 | I32 *intp; |
297 | { |
11343788 |
298 | dTHR; |
79072805 |
299 | SSCHECK(3); |
300 | SSPUSHINT(*intp); |
301 | SSPUSHPTR(intp); |
302 | SSPUSHINT(SAVEt_I32); |
303 | } |
304 | |
a0d0e21e |
305 | void |
55497cff |
306 | save_I16(intp) |
307 | I16 *intp; |
308 | { |
e858de61 |
309 | dTHR; |
55497cff |
310 | SSCHECK(3); |
311 | SSPUSHINT(*intp); |
312 | SSPUSHPTR(intp); |
313 | SSPUSHINT(SAVEt_I16); |
314 | } |
315 | |
316 | void |
a0d0e21e |
317 | save_iv(ivp) |
318 | IV *ivp; |
319 | { |
11343788 |
320 | dTHR; |
a0d0e21e |
321 | SSCHECK(3); |
4aa0a1f7 |
322 | SSPUSHIV(*ivp); |
a0d0e21e |
323 | SSPUSHPTR(ivp); |
324 | SSPUSHINT(SAVEt_IV); |
325 | } |
326 | |
85e6fe83 |
327 | /* Cannot use save_sptr() to store a char* since the SV** cast will |
328 | * force word-alignment and we'll miss the pointer. |
329 | */ |
330 | void |
331 | save_pptr(pptr) |
332 | char **pptr; |
333 | { |
11343788 |
334 | dTHR; |
85e6fe83 |
335 | SSCHECK(3); |
336 | SSPUSHPTR(*pptr); |
337 | SSPUSHPTR(pptr); |
338 | SSPUSHINT(SAVEt_PPTR); |
339 | } |
340 | |
79072805 |
341 | void |
342 | save_sptr(sptr) |
343 | SV **sptr; |
344 | { |
11343788 |
345 | dTHR; |
79072805 |
346 | SSCHECK(3); |
347 | SSPUSHPTR(*sptr); |
348 | SSPUSHPTR(sptr); |
349 | SSPUSHINT(SAVEt_SPTR); |
350 | } |
351 | |
352 | void |
353 | save_nogv(gv) |
354 | GV *gv; |
355 | { |
11343788 |
356 | dTHR; |
79072805 |
357 | SSCHECK(2); |
358 | SSPUSHPTR(gv); |
359 | SSPUSHINT(SAVEt_NSTAB); |
360 | } |
361 | |
362 | void |
363 | save_hptr(hptr) |
364 | HV **hptr; |
365 | { |
11343788 |
366 | dTHR; |
79072805 |
367 | SSCHECK(3); |
85e6fe83 |
368 | SSPUSHPTR(*hptr); |
79072805 |
369 | SSPUSHPTR(hptr); |
370 | SSPUSHINT(SAVEt_HPTR); |
371 | } |
372 | |
373 | void |
374 | save_aptr(aptr) |
375 | AV **aptr; |
376 | { |
11343788 |
377 | dTHR; |
79072805 |
378 | SSCHECK(3); |
85e6fe83 |
379 | SSPUSHPTR(*aptr); |
79072805 |
380 | SSPUSHPTR(aptr); |
381 | SSPUSHINT(SAVEt_APTR); |
382 | } |
383 | |
384 | void |
8990e307 |
385 | save_freesv(sv) |
386 | SV *sv; |
387 | { |
11343788 |
388 | dTHR; |
8990e307 |
389 | SSCHECK(2); |
390 | SSPUSHPTR(sv); |
391 | SSPUSHINT(SAVEt_FREESV); |
392 | } |
393 | |
394 | void |
11343788 |
395 | save_freeop(o) |
396 | OP *o; |
8990e307 |
397 | { |
11343788 |
398 | dTHR; |
8990e307 |
399 | SSCHECK(2); |
11343788 |
400 | SSPUSHPTR(o); |
8990e307 |
401 | SSPUSHINT(SAVEt_FREEOP); |
402 | } |
403 | |
404 | void |
405 | save_freepv(pv) |
406 | char *pv; |
407 | { |
11343788 |
408 | dTHR; |
8990e307 |
409 | SSCHECK(2); |
410 | SSPUSHPTR(pv); |
411 | SSPUSHINT(SAVEt_FREEPV); |
412 | } |
413 | |
414 | void |
415 | save_clearsv(svp) |
416 | SV** svp; |
417 | { |
11343788 |
418 | dTHR; |
8990e307 |
419 | SSCHECK(2); |
4aa0a1f7 |
420 | SSPUSHLONG((long)(svp-curpad)); |
8990e307 |
421 | SSPUSHINT(SAVEt_CLEARSV); |
422 | } |
423 | |
424 | void |
425 | save_delete(hv,key,klen) |
426 | HV *hv; |
427 | char *key; |
428 | I32 klen; |
429 | { |
11343788 |
430 | dTHR; |
8990e307 |
431 | SSCHECK(4); |
432 | SSPUSHINT(klen); |
433 | SSPUSHPTR(key); |
434 | SSPUSHPTR(hv); |
435 | SSPUSHINT(SAVEt_DELETE); |
436 | } |
437 | |
438 | void |
79072805 |
439 | save_list(sarg,maxsarg) |
440 | register SV **sarg; |
441 | I32 maxsarg; |
442 | { |
11343788 |
443 | dTHR; |
79072805 |
444 | register SV *sv; |
445 | register I32 i; |
446 | |
447 | SSCHECK(3 * maxsarg); |
448 | for (i = 1; i <= maxsarg; i++) { |
449 | SSPUSHPTR(sarg[i]); /* remember the pointer */ |
450 | sv = NEWSV(0,0); |
451 | sv_setsv(sv,sarg[i]); |
452 | SSPUSHPTR(sv); /* remember the value */ |
453 | SSPUSHINT(SAVEt_ITEM); |
454 | } |
455 | } |
456 | |
457 | void |
a0d0e21e |
458 | save_destructor(f,p) |
459 | void (*f) _((void*)); |
460 | void* p; |
461 | { |
11343788 |
462 | dTHR; |
a0d0e21e |
463 | SSCHECK(3); |
464 | SSPUSHDPTR(f); |
465 | SSPUSHPTR(p); |
466 | SSPUSHINT(SAVEt_DESTRUCTOR); |
467 | } |
468 | |
469 | void |
462e5cf6 |
470 | save_op() |
471 | { |
472 | dTHR; |
473 | SSCHECK(2); |
474 | SSPUSHPTR(op); |
475 | SSPUSHINT(SAVEt_OP); |
476 | } |
477 | |
478 | void |
79072805 |
479 | leave_scope(base) |
480 | I32 base; |
481 | { |
11343788 |
482 | dTHR; |
79072805 |
483 | register SV *sv; |
484 | register SV *value; |
485 | register GV *gv; |
486 | register AV *av; |
487 | register HV *hv; |
488 | register void* ptr; |
489 | |
490 | if (base < -1) |
463ee0b2 |
491 | croak("panic: corrupt saved stack index"); |
79072805 |
492 | while (savestack_ix > base) { |
493 | switch (SSPOPINT) { |
494 | case SAVEt_ITEM: /* normal string */ |
495 | value = (SV*)SSPOPPTR; |
496 | sv = (SV*)SSPOPPTR; |
497 | sv_replace(sv,value); |
748a9306 |
498 | localizing = 2; |
79072805 |
499 | SvSETMAGIC(sv); |
748a9306 |
500 | localizing = 0; |
79072805 |
501 | break; |
502 | case SAVEt_SV: /* scalar reference */ |
503 | value = (SV*)SSPOPPTR; |
504 | gv = (GV*)SSPOPPTR; |
7a4c00b4 |
505 | ptr = &GvSV(gv); |
506 | goto restore_sv; |
79072805 |
507 | case SAVEt_SVREF: /* scalar reference */ |
7a4c00b4 |
508 | value = (SV*)SSPOPPTR; |
79072805 |
509 | ptr = SSPOPPTR; |
7a4c00b4 |
510 | restore_sv: |
79072805 |
511 | sv = *(SV**)ptr; |
748a9306 |
512 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv) && |
513 | SvTYPE(sv) != SVt_PVGV) |
514 | { |
a0d0e21e |
515 | (void)SvUPGRADE(value, SvTYPE(sv)); |
516 | SvMAGIC(value) = SvMAGIC(sv); |
517 | SvFLAGS(value) |= SvMAGICAL(sv); |
518 | SvMAGICAL_off(sv); |
79072805 |
519 | SvMAGIC(sv) = 0; |
a0d0e21e |
520 | } |
7a4c00b4 |
521 | else if (SvTYPE(value) >= SVt_PVMG && SvMAGIC(value) && |
522 | SvTYPE(value) != SVt_PVGV) |
523 | { |
524 | SvFLAGS(value) |= (SvFLAGS(value) & |
525 | (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
526 | SvMAGICAL_off(value); |
527 | SvMAGIC(value) = 0; |
528 | } |
8990e307 |
529 | SvREFCNT_dec(sv); |
a0d0e21e |
530 | *(SV**)ptr = value; |
748a9306 |
531 | localizing = 2; |
a0d0e21e |
532 | SvSETMAGIC(value); |
748a9306 |
533 | localizing = 0; |
79072805 |
534 | break; |
535 | case SAVEt_AV: /* array reference */ |
536 | av = (AV*)SSPOPPTR; |
537 | gv = (GV*)SSPOPPTR; |
fb73857a |
538 | if (GvAV(gv)) { |
539 | AV *goner = GvAV(gv); |
540 | SvMAGIC(av) = SvMAGIC(goner); |
541 | SvFLAGS(av) |= SvMAGICAL(goner); |
542 | SvMAGICAL_off(goner); |
543 | SvMAGIC(goner) = 0; |
544 | SvREFCNT_dec(goner); |
545 | } |
79072805 |
546 | GvAV(gv) = av; |
fb73857a |
547 | if (SvMAGICAL(av)) { |
548 | localizing = 2; |
549 | SvSETMAGIC((SV*)av); |
550 | localizing = 0; |
551 | } |
79072805 |
552 | break; |
553 | case SAVEt_HV: /* hash reference */ |
554 | hv = (HV*)SSPOPPTR; |
555 | gv = (GV*)SSPOPPTR; |
fb73857a |
556 | if (GvHV(gv)) { |
557 | HV *goner = GvHV(gv); |
558 | SvMAGIC(hv) = SvMAGIC(goner); |
559 | SvFLAGS(hv) |= SvMAGICAL(goner); |
560 | SvMAGICAL_off(goner); |
561 | SvMAGIC(goner) = 0; |
562 | SvREFCNT_dec(goner); |
563 | } |
79072805 |
564 | GvHV(gv) = hv; |
fb73857a |
565 | if (SvMAGICAL(hv)) { |
566 | localizing = 2; |
567 | SvSETMAGIC((SV*)hv); |
568 | localizing = 0; |
569 | } |
79072805 |
570 | break; |
571 | case SAVEt_INT: /* int reference */ |
572 | ptr = SSPOPPTR; |
573 | *(int*)ptr = (int)SSPOPINT; |
574 | break; |
85e6fe83 |
575 | case SAVEt_LONG: /* long reference */ |
576 | ptr = SSPOPPTR; |
577 | *(long*)ptr = (long)SSPOPLONG; |
578 | break; |
79072805 |
579 | case SAVEt_I32: /* I32 reference */ |
580 | ptr = SSPOPPTR; |
581 | *(I32*)ptr = (I32)SSPOPINT; |
582 | break; |
55497cff |
583 | case SAVEt_I16: /* I16 reference */ |
584 | ptr = SSPOPPTR; |
585 | *(I16*)ptr = (I16)SSPOPINT; |
586 | break; |
a0d0e21e |
587 | case SAVEt_IV: /* IV reference */ |
588 | ptr = SSPOPPTR; |
589 | *(IV*)ptr = (IV)SSPOPIV; |
590 | break; |
79072805 |
591 | case SAVEt_SPTR: /* SV* reference */ |
592 | ptr = SSPOPPTR; |
593 | *(SV**)ptr = (SV*)SSPOPPTR; |
594 | break; |
85e6fe83 |
595 | case SAVEt_PPTR: /* char* reference */ |
596 | ptr = SSPOPPTR; |
597 | *(char**)ptr = (char*)SSPOPPTR; |
598 | break; |
79072805 |
599 | case SAVEt_HPTR: /* HV* reference */ |
600 | ptr = SSPOPPTR; |
601 | *(HV**)ptr = (HV*)SSPOPPTR; |
602 | break; |
603 | case SAVEt_APTR: /* AV* reference */ |
604 | ptr = SSPOPPTR; |
605 | *(AV**)ptr = (AV*)SSPOPPTR; |
606 | break; |
607 | case SAVEt_NSTAB: |
608 | gv = (GV*)SSPOPPTR; |
1f96a9ed |
609 | (void)sv_clear((SV*)gv); |
79072805 |
610 | break; |
fb73857a |
611 | case SAVEt_GP: /* scalar reference */ |
79072805 |
612 | ptr = SSPOPPTR; |
613 | gv = (GV*)SSPOPPTR; |
614 | gp_free(gv); |
615 | GvGP(gv) = (GP*)ptr; |
fb73857a |
616 | if (SvPOK(gv) && SvLEN(gv) > 0) { |
617 | Safefree(SvPVX(gv)); |
618 | } |
619 | SvPVX(gv) = (char *)SSPOPPTR; |
620 | SvCUR(gv) = (STRLEN)SSPOPIV; |
621 | SvLEN(gv) = (STRLEN)SSPOPIV; |
4633a7c4 |
622 | SvREFCNT_dec(gv); |
79072805 |
623 | break; |
8990e307 |
624 | case SAVEt_FREESV: |
625 | ptr = SSPOPPTR; |
626 | SvREFCNT_dec((SV*)ptr); |
627 | break; |
628 | case SAVEt_FREEOP: |
629 | ptr = SSPOPPTR; |
46fc3d4c |
630 | if (comppad) |
631 | curpad = AvARRAY(comppad); |
8990e307 |
632 | op_free((OP*)ptr); |
633 | break; |
634 | case SAVEt_FREEPV: |
635 | ptr = SSPOPPTR; |
636 | Safefree((char*)ptr); |
637 | break; |
638 | case SAVEt_CLEARSV: |
4aa0a1f7 |
639 | ptr = (void*)&curpad[SSPOPLONG]; |
8990e307 |
640 | sv = *(SV**)ptr; |
bc44cdaf |
641 | /* Can clear pad variable in place? */ |
642 | if (SvREFCNT(sv) <= 1 && !SvOBJECT(sv)) { |
8990e307 |
643 | if (SvTHINKFIRST(sv)) { |
644 | if (SvREADONLY(sv)) |
645 | croak("panic: leave_scope clearsv"); |
646 | if (SvROK(sv)) |
647 | sv_unref(sv); |
648 | } |
a0d0e21e |
649 | if (SvMAGICAL(sv)) |
650 | mg_free(sv); |
8990e307 |
651 | |
652 | switch (SvTYPE(sv)) { |
653 | case SVt_NULL: |
654 | break; |
655 | case SVt_PVAV: |
44a8e56a |
656 | av_clear((AV*)sv); |
8990e307 |
657 | break; |
658 | case SVt_PVHV: |
44a8e56a |
659 | hv_clear((HV*)sv); |
8990e307 |
660 | break; |
661 | case SVt_PVCV: |
5377b701 |
662 | croak("panic: leave_scope pad code"); |
663 | case SVt_RV: |
664 | case SVt_IV: |
665 | case SVt_NV: |
666 | (void)SvOK_off(sv); |
8990e307 |
667 | break; |
668 | default: |
a0d0e21e |
669 | (void)SvOK_off(sv); |
5377b701 |
670 | (void)SvOOK_off(sv); |
8990e307 |
671 | break; |
672 | } |
673 | } |
674 | else { /* Someone has a claim on this, so abandon it. */ |
4aa0a1f7 |
675 | U32 padflags = SvFLAGS(sv) & (SVs_PADBUSY|SVs_PADMY|SVs_PADTMP); |
8990e307 |
676 | SvREFCNT_dec(sv); /* Cast current value to the winds. */ |
677 | switch (SvTYPE(sv)) { /* Console ourselves with a new value */ |
678 | case SVt_PVAV: *(SV**)ptr = (SV*)newAV(); break; |
679 | case SVt_PVHV: *(SV**)ptr = (SV*)newHV(); break; |
680 | default: *(SV**)ptr = NEWSV(0,0); break; |
681 | } |
4aa0a1f7 |
682 | SvFLAGS(*(SV**)ptr) |= padflags; /* preserve pad nature */ |
8990e307 |
683 | } |
684 | break; |
685 | case SAVEt_DELETE: |
686 | ptr = SSPOPPTR; |
687 | hv = (HV*)ptr; |
688 | ptr = SSPOPPTR; |
748a9306 |
689 | (void)hv_delete(hv, (char*)ptr, (U32)SSPOPINT, G_DISCARD); |
adbc6bb1 |
690 | Safefree(ptr); |
8990e307 |
691 | break; |
a0d0e21e |
692 | case SAVEt_DESTRUCTOR: |
693 | ptr = SSPOPPTR; |
694 | (*SSPOPDPTR)(ptr); |
695 | break; |
696 | case SAVEt_REGCONTEXT: |
8e07c86e |
697 | { |
698 | I32 delta = SSPOPINT; |
699 | savestack_ix -= delta; /* regexp must have croaked */ |
700 | } |
a0d0e21e |
701 | break; |
55497cff |
702 | case SAVEt_STACK_POS: /* Position on Perl stack */ |
703 | { |
704 | I32 delta = SSPOPINT; |
705 | stack_sp = stack_base + delta; |
706 | } |
707 | break; |
462e5cf6 |
708 | case SAVEt_OP: |
709 | op = (OP*)SSPOPPTR; |
710 | break; |
79072805 |
711 | default: |
463ee0b2 |
712 | croak("panic: leave_scope inconsistency"); |
79072805 |
713 | } |
714 | } |
715 | } |
8990e307 |
716 | |
717 | #ifdef DEBUGGING |
1f96a9ed |
718 | |
8990e307 |
719 | void |
720 | cx_dump(cx) |
721 | CONTEXT* cx; |
722 | { |
11343788 |
723 | dTHR; |
fb73857a |
724 | PerlIO_printf(Perl_debug_log, "CX %ld = %s\n", (long)(cx - cxstack), block_type[cx->cx_type]); |
8990e307 |
725 | if (cx->cx_type != CXt_SUBST) { |
760ac839 |
726 | PerlIO_printf(Perl_debug_log, "BLK_OLDSP = %ld\n", (long)cx->blk_oldsp); |
727 | PerlIO_printf(Perl_debug_log, "BLK_OLDCOP = 0x%lx\n", (long)cx->blk_oldcop); |
728 | PerlIO_printf(Perl_debug_log, "BLK_OLDMARKSP = %ld\n", (long)cx->blk_oldmarksp); |
729 | PerlIO_printf(Perl_debug_log, "BLK_OLDSCOPESP = %ld\n", (long)cx->blk_oldscopesp); |
730 | PerlIO_printf(Perl_debug_log, "BLK_OLDRETSP = %ld\n", (long)cx->blk_oldretsp); |
731 | PerlIO_printf(Perl_debug_log, "BLK_OLDPM = 0x%lx\n", (long)cx->blk_oldpm); |
732 | PerlIO_printf(Perl_debug_log, "BLK_GIMME = %s\n", cx->blk_gimme ? "LIST" : "SCALAR"); |
8990e307 |
733 | } |
734 | switch (cx->cx_type) { |
735 | case CXt_NULL: |
736 | case CXt_BLOCK: |
737 | break; |
738 | case CXt_SUB: |
760ac839 |
739 | PerlIO_printf(Perl_debug_log, "BLK_SUB.CV = 0x%lx\n", |
8990e307 |
740 | (long)cx->blk_sub.cv); |
760ac839 |
741 | PerlIO_printf(Perl_debug_log, "BLK_SUB.GV = 0x%lx\n", |
8990e307 |
742 | (long)cx->blk_sub.gv); |
760ac839 |
743 | PerlIO_printf(Perl_debug_log, "BLK_SUB.DFOUTGV = 0x%lx\n", |
8990e307 |
744 | (long)cx->blk_sub.dfoutgv); |
760ac839 |
745 | PerlIO_printf(Perl_debug_log, "BLK_SUB.OLDDEPTH = %ld\n", |
8990e307 |
746 | (long)cx->blk_sub.olddepth); |
760ac839 |
747 | PerlIO_printf(Perl_debug_log, "BLK_SUB.HASARGS = %d\n", |
8990e307 |
748 | (int)cx->blk_sub.hasargs); |
749 | break; |
750 | case CXt_EVAL: |
760ac839 |
751 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_IN_EVAL = %ld\n", |
8990e307 |
752 | (long)cx->blk_eval.old_in_eval); |
760ac839 |
753 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_OP_TYPE = %s (%s)\n", |
c07a80fd |
754 | op_name[cx->blk_eval.old_op_type], |
755 | op_desc[cx->blk_eval.old_op_type]); |
760ac839 |
756 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_NAME = %s\n", |
8990e307 |
757 | cx->blk_eval.old_name); |
760ac839 |
758 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_EVAL_ROOT = 0x%lx\n", |
8990e307 |
759 | (long)cx->blk_eval.old_eval_root); |
760 | break; |
761 | |
762 | case CXt_LOOP: |
760ac839 |
763 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.LABEL = %s\n", |
8990e307 |
764 | cx->blk_loop.label); |
760ac839 |
765 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.RESETSP = %ld\n", |
8990e307 |
766 | (long)cx->blk_loop.resetsp); |
760ac839 |
767 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.REDO_OP = 0x%lx\n", |
8990e307 |
768 | (long)cx->blk_loop.redo_op); |
760ac839 |
769 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.NEXT_OP = 0x%lx\n", |
8990e307 |
770 | (long)cx->blk_loop.next_op); |
760ac839 |
771 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.LAST_OP = 0x%lx\n", |
8990e307 |
772 | (long)cx->blk_loop.last_op); |
760ac839 |
773 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERIX = %ld\n", |
8990e307 |
774 | (long)cx->blk_loop.iterix); |
760ac839 |
775 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERARY = 0x%lx\n", |
8990e307 |
776 | (long)cx->blk_loop.iterary); |
760ac839 |
777 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERVAR = 0x%lx\n", |
8990e307 |
778 | (long)cx->blk_loop.itervar); |
779 | if (cx->blk_loop.itervar) |
760ac839 |
780 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERSAVE = 0x%lx\n", |
8990e307 |
781 | (long)cx->blk_loop.itersave); |
7a4c00b4 |
782 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERLVAL = 0x%lx\n", |
783 | (long)cx->blk_loop.iterlval); |
8990e307 |
784 | break; |
785 | |
786 | case CXt_SUBST: |
760ac839 |
787 | PerlIO_printf(Perl_debug_log, "SB_ITERS = %ld\n", |
8990e307 |
788 | (long)cx->sb_iters); |
760ac839 |
789 | PerlIO_printf(Perl_debug_log, "SB_MAXITERS = %ld\n", |
8990e307 |
790 | (long)cx->sb_maxiters); |
760ac839 |
791 | PerlIO_printf(Perl_debug_log, "SB_SAFEBASE = %ld\n", |
8990e307 |
792 | (long)cx->sb_safebase); |
760ac839 |
793 | PerlIO_printf(Perl_debug_log, "SB_ONCE = %ld\n", |
8990e307 |
794 | (long)cx->sb_once); |
760ac839 |
795 | PerlIO_printf(Perl_debug_log, "SB_ORIG = %s\n", |
8990e307 |
796 | cx->sb_orig); |
760ac839 |
797 | PerlIO_printf(Perl_debug_log, "SB_DSTR = 0x%lx\n", |
8990e307 |
798 | (long)cx->sb_dstr); |
760ac839 |
799 | PerlIO_printf(Perl_debug_log, "SB_TARG = 0x%lx\n", |
8990e307 |
800 | (long)cx->sb_targ); |
760ac839 |
801 | PerlIO_printf(Perl_debug_log, "SB_S = 0x%lx\n", |
8990e307 |
802 | (long)cx->sb_s); |
760ac839 |
803 | PerlIO_printf(Perl_debug_log, "SB_M = 0x%lx\n", |
8990e307 |
804 | (long)cx->sb_m); |
760ac839 |
805 | PerlIO_printf(Perl_debug_log, "SB_STREND = 0x%lx\n", |
8990e307 |
806 | (long)cx->sb_strend); |
c90c0ff4 |
807 | PerlIO_printf(Perl_debug_log, "SB_RXRES = 0x%lx\n", |
808 | (long)cx->sb_rxres); |
8990e307 |
809 | break; |
810 | } |
811 | } |
812 | #endif |