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** |
8ac85365 |
19 | stack_grow(SV **sp, SV **p, int n) |
a0d0e21e |
20 | { |
11343788 |
21 | dTHR; |
a0d0e21e |
22 | stack_sp = sp; |
1f96a9ed |
23 | av_extend(curstack, (p - stack_base) + (n) + 128); |
a0d0e21e |
24 | return stack_sp; |
25 | } |
26 | |
79072805 |
27 | I32 |
8ac85365 |
28 | cxinc(void) |
79072805 |
29 | { |
11343788 |
30 | dTHR; |
79072805 |
31 | cxstack_max = cxstack_max * 3 / 2; |
a38d6535 |
32 | Renew(cxstack, cxstack_max + 1, CONTEXT); /* XXX should fix CXINC macro */ |
79072805 |
33 | return cxstack_ix + 1; |
34 | } |
35 | |
36 | void |
8ac85365 |
37 | push_return(OP *retop) |
79072805 |
38 | { |
11343788 |
39 | dTHR; |
79072805 |
40 | if (retstack_ix == retstack_max) { |
41 | retstack_max = retstack_max * 3 / 2; |
42 | Renew(retstack, retstack_max, OP*); |
43 | } |
44 | retstack[retstack_ix++] = retop; |
45 | } |
46 | |
47 | OP * |
8ac85365 |
48 | pop_return(void) |
79072805 |
49 | { |
11343788 |
50 | dTHR; |
79072805 |
51 | if (retstack_ix > 0) |
52 | return retstack[--retstack_ix]; |
53 | else |
54 | return Nullop; |
55 | } |
56 | |
57 | void |
8ac85365 |
58 | push_scope(void) |
79072805 |
59 | { |
11343788 |
60 | dTHR; |
79072805 |
61 | if (scopestack_ix == scopestack_max) { |
62 | scopestack_max = scopestack_max * 3 / 2; |
63 | Renew(scopestack, scopestack_max, I32); |
64 | } |
65 | scopestack[scopestack_ix++] = savestack_ix; |
66 | |
67 | } |
68 | |
69 | void |
8ac85365 |
70 | pop_scope(void) |
79072805 |
71 | { |
11343788 |
72 | dTHR; |
79072805 |
73 | I32 oldsave = scopestack[--scopestack_ix]; |
8990e307 |
74 | LEAVE_SCOPE(oldsave); |
79072805 |
75 | } |
76 | |
77 | void |
8ac85365 |
78 | markstack_grow(void) |
a0d0e21e |
79 | { |
11343788 |
80 | dTHR; |
a0d0e21e |
81 | I32 oldmax = markstack_max - markstack; |
82 | I32 newmax = oldmax * 3 / 2; |
83 | |
84 | Renew(markstack, newmax, I32); |
85 | markstack_ptr = markstack + oldmax; |
86 | markstack_max = markstack + newmax; |
87 | } |
88 | |
89 | void |
8ac85365 |
90 | savestack_grow(void) |
79072805 |
91 | { |
11343788 |
92 | dTHR; |
79072805 |
93 | savestack_max = savestack_max * 3 / 2; |
94 | Renew(savestack, savestack_max, ANY); |
95 | } |
96 | |
97 | void |
8ac85365 |
98 | free_tmps(void) |
79072805 |
99 | { |
11343788 |
100 | dTHR; |
79072805 |
101 | /* XXX should tmps_floor live in cxstack? */ |
102 | I32 myfloor = tmps_floor; |
103 | while (tmps_ix > myfloor) { /* clean up after last statement */ |
104 | SV* sv = tmps_stack[tmps_ix]; |
105 | tmps_stack[tmps_ix--] = Nullsv; |
463ee0b2 |
106 | if (sv) { |
107 | #ifdef DEBUGGING |
108 | SvTEMP_off(sv); |
109 | #endif |
8990e307 |
110 | SvREFCNT_dec(sv); /* note, can modify tmps_ix!!! */ |
463ee0b2 |
111 | } |
79072805 |
112 | } |
113 | } |
114 | |
7a4c00b4 |
115 | static SV * |
8ac85365 |
116 | save_scalar_at(SV **sptr) |
79072805 |
117 | { |
11343788 |
118 | dTHR; |
79072805 |
119 | register SV *sv; |
7a4c00b4 |
120 | SV *osv = *sptr; |
79072805 |
121 | |
7a4c00b4 |
122 | sv = *sptr = NEWSV(0,0); |
a0d0e21e |
123 | if (SvTYPE(osv) >= SVt_PVMG && SvMAGIC(osv) && SvTYPE(osv) != SVt_PVGV) { |
79072805 |
124 | sv_upgrade(sv, SvTYPE(osv)); |
a0d0e21e |
125 | if (SvGMAGICAL(osv)) { |
748a9306 |
126 | MAGIC* mg; |
127 | bool oldtainted = tainted; |
a0d0e21e |
128 | mg_get(osv); |
748a9306 |
129 | if (tainting && tainted && (mg = mg_find(osv, 't'))) { |
130 | SAVESPTR(mg->mg_obj); |
131 | mg->mg_obj = osv; |
132 | } |
a0d0e21e |
133 | SvFLAGS(osv) |= (SvFLAGS(osv) & |
134 | (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
748a9306 |
135 | tainted = oldtainted; |
a0d0e21e |
136 | } |
79072805 |
137 | SvMAGIC(sv) = SvMAGIC(osv); |
a0d0e21e |
138 | SvFLAGS(sv) |= SvMAGICAL(osv); |
748a9306 |
139 | localizing = 1; |
79072805 |
140 | SvSETMAGIC(sv); |
748a9306 |
141 | localizing = 0; |
79072805 |
142 | } |
143 | return sv; |
144 | } |
145 | |
7a4c00b4 |
146 | SV * |
8ac85365 |
147 | save_scalar(GV *gv) |
7a4c00b4 |
148 | { |
11343788 |
149 | dTHR; |
7a4c00b4 |
150 | SSCHECK(3); |
151 | SSPUSHPTR(gv); |
152 | SSPUSHPTR(GvSV(gv)); |
153 | SSPUSHINT(SAVEt_SV); |
154 | return save_scalar_at(&GvSV(gv)); |
155 | } |
156 | |
157 | SV* |
8ac85365 |
158 | save_svref(SV **sptr) |
7a4c00b4 |
159 | { |
11343788 |
160 | dTHR; |
7a4c00b4 |
161 | SSCHECK(3); |
162 | SSPUSHPTR(sptr); |
163 | SSPUSHPTR(*sptr); |
164 | SSPUSHINT(SAVEt_SVREF); |
165 | return save_scalar_at(sptr); |
166 | } |
167 | |
79072805 |
168 | void |
8ac85365 |
169 | save_gp(GV *gv, I32 empty) |
79072805 |
170 | { |
e858de61 |
171 | dTHR; |
fb73857a |
172 | SSCHECK(6); |
173 | SSPUSHIV((IV)SvLEN(gv)); |
174 | SvLEN(gv) = 0; /* forget that anything was allocated here */ |
175 | SSPUSHIV((IV)SvCUR(gv)); |
176 | SSPUSHPTR(SvPVX(gv)); |
177 | SvPOK_off(gv); |
4633a7c4 |
178 | SSPUSHPTR(SvREFCNT_inc(gv)); |
5f05dabc |
179 | SSPUSHPTR(GvGP(gv)); |
79072805 |
180 | SSPUSHINT(SAVEt_GP); |
181 | |
5f05dabc |
182 | if (empty) { |
183 | register GP *gp; |
184 | Newz(602, gp, 1, GP); |
44a8e56a |
185 | GvGP(gv) = gp_ref(gp); |
5f05dabc |
186 | GvSV(gv) = NEWSV(72,0); |
187 | GvLINE(gv) = curcop->cop_line; |
188 | GvEGV(gv) = gv; |
189 | } |
190 | else { |
44a8e56a |
191 | gp_ref(GvGP(gv)); |
5f05dabc |
192 | GvINTRO_on(gv); |
193 | } |
79072805 |
194 | } |
79072805 |
195 | |
79072805 |
196 | AV * |
8ac85365 |
197 | save_ary(GV *gv) |
79072805 |
198 | { |
11343788 |
199 | dTHR; |
fb73857a |
200 | AV *oav, *av; |
201 | |
79072805 |
202 | SSCHECK(3); |
203 | SSPUSHPTR(gv); |
fb73857a |
204 | SSPUSHPTR(oav = GvAVn(gv)); |
79072805 |
205 | SSPUSHINT(SAVEt_AV); |
206 | |
207 | GvAV(gv) = Null(AV*); |
fb73857a |
208 | av = GvAVn(gv); |
209 | if (SvMAGIC(oav)) { |
210 | SvMAGIC(av) = SvMAGIC(oav); |
211 | SvFLAGS(av) |= SvMAGICAL(oav); |
212 | SvMAGICAL_off(oav); |
213 | SvMAGIC(oav) = 0; |
214 | localizing = 1; |
215 | SvSETMAGIC((SV*)av); |
216 | localizing = 0; |
217 | } |
218 | return av; |
79072805 |
219 | } |
220 | |
221 | HV * |
8ac85365 |
222 | save_hash(GV *gv) |
79072805 |
223 | { |
11343788 |
224 | dTHR; |
fb73857a |
225 | HV *ohv, *hv; |
226 | |
79072805 |
227 | SSCHECK(3); |
228 | SSPUSHPTR(gv); |
fb73857a |
229 | SSPUSHPTR(ohv = GvHVn(gv)); |
79072805 |
230 | SSPUSHINT(SAVEt_HV); |
231 | |
232 | GvHV(gv) = Null(HV*); |
fb73857a |
233 | hv = GvHVn(gv); |
234 | if (SvMAGIC(ohv)) { |
235 | SvMAGIC(hv) = SvMAGIC(ohv); |
236 | SvFLAGS(hv) |= SvMAGICAL(ohv); |
237 | SvMAGICAL_off(ohv); |
238 | SvMAGIC(ohv) = 0; |
239 | localizing = 1; |
240 | SvSETMAGIC((SV*)hv); |
241 | localizing = 0; |
242 | } |
243 | return hv; |
79072805 |
244 | } |
245 | |
246 | void |
8ac85365 |
247 | save_item(register SV *item) |
79072805 |
248 | { |
11343788 |
249 | dTHR; |
79072805 |
250 | register SV *sv; |
251 | |
252 | SSCHECK(3); |
253 | SSPUSHPTR(item); /* remember the pointer */ |
254 | sv = NEWSV(0,0); |
255 | sv_setsv(sv,item); |
256 | SSPUSHPTR(sv); /* remember the value */ |
257 | SSPUSHINT(SAVEt_ITEM); |
258 | } |
259 | |
260 | void |
8ac85365 |
261 | save_int(int *intp) |
79072805 |
262 | { |
11343788 |
263 | dTHR; |
79072805 |
264 | SSCHECK(3); |
265 | SSPUSHINT(*intp); |
266 | SSPUSHPTR(intp); |
267 | SSPUSHINT(SAVEt_INT); |
268 | } |
269 | |
270 | void |
8ac85365 |
271 | save_long(long int *longp) |
85e6fe83 |
272 | { |
11343788 |
273 | dTHR; |
85e6fe83 |
274 | SSCHECK(3); |
275 | SSPUSHLONG(*longp); |
276 | SSPUSHPTR(longp); |
277 | SSPUSHINT(SAVEt_LONG); |
278 | } |
279 | |
280 | void |
8ac85365 |
281 | save_I32(I32 *intp) |
79072805 |
282 | { |
11343788 |
283 | dTHR; |
79072805 |
284 | SSCHECK(3); |
285 | SSPUSHINT(*intp); |
286 | SSPUSHPTR(intp); |
287 | SSPUSHINT(SAVEt_I32); |
288 | } |
289 | |
a0d0e21e |
290 | void |
8ac85365 |
291 | save_I16(I16 *intp) |
55497cff |
292 | { |
e858de61 |
293 | dTHR; |
55497cff |
294 | SSCHECK(3); |
295 | SSPUSHINT(*intp); |
296 | SSPUSHPTR(intp); |
297 | SSPUSHINT(SAVEt_I16); |
298 | } |
299 | |
300 | void |
8ac85365 |
301 | save_iv(IV *ivp) |
a0d0e21e |
302 | { |
11343788 |
303 | dTHR; |
a0d0e21e |
304 | SSCHECK(3); |
4aa0a1f7 |
305 | SSPUSHIV(*ivp); |
a0d0e21e |
306 | SSPUSHPTR(ivp); |
307 | SSPUSHINT(SAVEt_IV); |
308 | } |
309 | |
85e6fe83 |
310 | /* Cannot use save_sptr() to store a char* since the SV** cast will |
311 | * force word-alignment and we'll miss the pointer. |
312 | */ |
313 | void |
8ac85365 |
314 | save_pptr(char **pptr) |
85e6fe83 |
315 | { |
11343788 |
316 | dTHR; |
85e6fe83 |
317 | SSCHECK(3); |
318 | SSPUSHPTR(*pptr); |
319 | SSPUSHPTR(pptr); |
320 | SSPUSHINT(SAVEt_PPTR); |
321 | } |
322 | |
79072805 |
323 | void |
8ac85365 |
324 | save_sptr(SV **sptr) |
79072805 |
325 | { |
11343788 |
326 | dTHR; |
79072805 |
327 | SSCHECK(3); |
328 | SSPUSHPTR(*sptr); |
329 | SSPUSHPTR(sptr); |
330 | SSPUSHINT(SAVEt_SPTR); |
331 | } |
332 | |
333 | void |
8ac85365 |
334 | save_nogv(GV *gv) |
79072805 |
335 | { |
11343788 |
336 | dTHR; |
79072805 |
337 | SSCHECK(2); |
338 | SSPUSHPTR(gv); |
339 | SSPUSHINT(SAVEt_NSTAB); |
340 | } |
341 | |
342 | void |
8ac85365 |
343 | save_hptr(HV **hptr) |
79072805 |
344 | { |
11343788 |
345 | dTHR; |
79072805 |
346 | SSCHECK(3); |
85e6fe83 |
347 | SSPUSHPTR(*hptr); |
79072805 |
348 | SSPUSHPTR(hptr); |
349 | SSPUSHINT(SAVEt_HPTR); |
350 | } |
351 | |
352 | void |
8ac85365 |
353 | save_aptr(AV **aptr) |
79072805 |
354 | { |
11343788 |
355 | dTHR; |
79072805 |
356 | SSCHECK(3); |
85e6fe83 |
357 | SSPUSHPTR(*aptr); |
79072805 |
358 | SSPUSHPTR(aptr); |
359 | SSPUSHINT(SAVEt_APTR); |
360 | } |
361 | |
362 | void |
8ac85365 |
363 | save_freesv(SV *sv) |
8990e307 |
364 | { |
11343788 |
365 | dTHR; |
8990e307 |
366 | SSCHECK(2); |
367 | SSPUSHPTR(sv); |
368 | SSPUSHINT(SAVEt_FREESV); |
369 | } |
370 | |
371 | void |
8ac85365 |
372 | save_freeop(OP *o) |
8990e307 |
373 | { |
11343788 |
374 | dTHR; |
8990e307 |
375 | SSCHECK(2); |
11343788 |
376 | SSPUSHPTR(o); |
8990e307 |
377 | SSPUSHINT(SAVEt_FREEOP); |
378 | } |
379 | |
380 | void |
8ac85365 |
381 | save_freepv(char *pv) |
8990e307 |
382 | { |
11343788 |
383 | dTHR; |
8990e307 |
384 | SSCHECK(2); |
385 | SSPUSHPTR(pv); |
386 | SSPUSHINT(SAVEt_FREEPV); |
387 | } |
388 | |
389 | void |
8ac85365 |
390 | save_clearsv(SV **svp) |
8990e307 |
391 | { |
11343788 |
392 | dTHR; |
8990e307 |
393 | SSCHECK(2); |
4aa0a1f7 |
394 | SSPUSHLONG((long)(svp-curpad)); |
8990e307 |
395 | SSPUSHINT(SAVEt_CLEARSV); |
396 | } |
397 | |
398 | void |
8ac85365 |
399 | save_delete(HV *hv, char *key, I32 klen) |
8990e307 |
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 |
8ac85365 |
410 | save_list(register SV **sarg, I32 maxsarg) |
79072805 |
411 | { |
11343788 |
412 | dTHR; |
79072805 |
413 | register SV *sv; |
414 | register I32 i; |
415 | |
416 | SSCHECK(3 * maxsarg); |
417 | for (i = 1; i <= maxsarg; i++) { |
418 | SSPUSHPTR(sarg[i]); /* remember the pointer */ |
419 | sv = NEWSV(0,0); |
420 | sv_setsv(sv,sarg[i]); |
421 | SSPUSHPTR(sv); /* remember the value */ |
422 | SSPUSHINT(SAVEt_ITEM); |
423 | } |
424 | } |
425 | |
426 | void |
8ac85365 |
427 | save_destructor(void (*f) (void *), void *p) |
a0d0e21e |
428 | { |
11343788 |
429 | dTHR; |
a0d0e21e |
430 | SSCHECK(3); |
431 | SSPUSHDPTR(f); |
432 | SSPUSHPTR(p); |
433 | SSPUSHINT(SAVEt_DESTRUCTOR); |
434 | } |
435 | |
436 | void |
8ac85365 |
437 | save_op(void) |
462e5cf6 |
438 | { |
439 | dTHR; |
440 | SSCHECK(2); |
441 | SSPUSHPTR(op); |
442 | SSPUSHINT(SAVEt_OP); |
443 | } |
444 | |
445 | void |
8ac85365 |
446 | leave_scope(I32 base) |
79072805 |
447 | { |
11343788 |
448 | dTHR; |
79072805 |
449 | register SV *sv; |
450 | register SV *value; |
451 | register GV *gv; |
452 | register AV *av; |
453 | register HV *hv; |
454 | register void* ptr; |
455 | |
456 | if (base < -1) |
463ee0b2 |
457 | croak("panic: corrupt saved stack index"); |
79072805 |
458 | while (savestack_ix > base) { |
459 | switch (SSPOPINT) { |
460 | case SAVEt_ITEM: /* normal string */ |
461 | value = (SV*)SSPOPPTR; |
462 | sv = (SV*)SSPOPPTR; |
463 | sv_replace(sv,value); |
748a9306 |
464 | localizing = 2; |
79072805 |
465 | SvSETMAGIC(sv); |
748a9306 |
466 | localizing = 0; |
79072805 |
467 | break; |
468 | case SAVEt_SV: /* scalar reference */ |
469 | value = (SV*)SSPOPPTR; |
470 | gv = (GV*)SSPOPPTR; |
7a4c00b4 |
471 | ptr = &GvSV(gv); |
472 | goto restore_sv; |
79072805 |
473 | case SAVEt_SVREF: /* scalar reference */ |
7a4c00b4 |
474 | value = (SV*)SSPOPPTR; |
79072805 |
475 | ptr = SSPOPPTR; |
7a4c00b4 |
476 | restore_sv: |
79072805 |
477 | sv = *(SV**)ptr; |
748a9306 |
478 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv) && |
479 | SvTYPE(sv) != SVt_PVGV) |
480 | { |
a0d0e21e |
481 | (void)SvUPGRADE(value, SvTYPE(sv)); |
482 | SvMAGIC(value) = SvMAGIC(sv); |
483 | SvFLAGS(value) |= SvMAGICAL(sv); |
484 | SvMAGICAL_off(sv); |
79072805 |
485 | SvMAGIC(sv) = 0; |
a0d0e21e |
486 | } |
7a4c00b4 |
487 | else if (SvTYPE(value) >= SVt_PVMG && SvMAGIC(value) && |
488 | SvTYPE(value) != SVt_PVGV) |
489 | { |
490 | SvFLAGS(value) |= (SvFLAGS(value) & |
491 | (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
492 | SvMAGICAL_off(value); |
493 | SvMAGIC(value) = 0; |
494 | } |
8990e307 |
495 | SvREFCNT_dec(sv); |
a0d0e21e |
496 | *(SV**)ptr = value; |
748a9306 |
497 | localizing = 2; |
a0d0e21e |
498 | SvSETMAGIC(value); |
748a9306 |
499 | localizing = 0; |
79072805 |
500 | break; |
501 | case SAVEt_AV: /* array reference */ |
502 | av = (AV*)SSPOPPTR; |
503 | gv = (GV*)SSPOPPTR; |
fb73857a |
504 | if (GvAV(gv)) { |
505 | AV *goner = GvAV(gv); |
506 | SvMAGIC(av) = SvMAGIC(goner); |
507 | SvFLAGS(av) |= SvMAGICAL(goner); |
508 | SvMAGICAL_off(goner); |
509 | SvMAGIC(goner) = 0; |
510 | SvREFCNT_dec(goner); |
511 | } |
79072805 |
512 | GvAV(gv) = av; |
fb73857a |
513 | if (SvMAGICAL(av)) { |
514 | localizing = 2; |
515 | SvSETMAGIC((SV*)av); |
516 | localizing = 0; |
517 | } |
79072805 |
518 | break; |
519 | case SAVEt_HV: /* hash reference */ |
520 | hv = (HV*)SSPOPPTR; |
521 | gv = (GV*)SSPOPPTR; |
fb73857a |
522 | if (GvHV(gv)) { |
523 | HV *goner = GvHV(gv); |
524 | SvMAGIC(hv) = SvMAGIC(goner); |
525 | SvFLAGS(hv) |= SvMAGICAL(goner); |
526 | SvMAGICAL_off(goner); |
527 | SvMAGIC(goner) = 0; |
528 | SvREFCNT_dec(goner); |
529 | } |
79072805 |
530 | GvHV(gv) = hv; |
fb73857a |
531 | if (SvMAGICAL(hv)) { |
532 | localizing = 2; |
533 | SvSETMAGIC((SV*)hv); |
534 | localizing = 0; |
535 | } |
79072805 |
536 | break; |
537 | case SAVEt_INT: /* int reference */ |
538 | ptr = SSPOPPTR; |
539 | *(int*)ptr = (int)SSPOPINT; |
540 | break; |
85e6fe83 |
541 | case SAVEt_LONG: /* long reference */ |
542 | ptr = SSPOPPTR; |
543 | *(long*)ptr = (long)SSPOPLONG; |
544 | break; |
79072805 |
545 | case SAVEt_I32: /* I32 reference */ |
546 | ptr = SSPOPPTR; |
547 | *(I32*)ptr = (I32)SSPOPINT; |
548 | break; |
55497cff |
549 | case SAVEt_I16: /* I16 reference */ |
550 | ptr = SSPOPPTR; |
551 | *(I16*)ptr = (I16)SSPOPINT; |
552 | break; |
a0d0e21e |
553 | case SAVEt_IV: /* IV reference */ |
554 | ptr = SSPOPPTR; |
555 | *(IV*)ptr = (IV)SSPOPIV; |
556 | break; |
79072805 |
557 | case SAVEt_SPTR: /* SV* reference */ |
558 | ptr = SSPOPPTR; |
559 | *(SV**)ptr = (SV*)SSPOPPTR; |
560 | break; |
85e6fe83 |
561 | case SAVEt_PPTR: /* char* reference */ |
562 | ptr = SSPOPPTR; |
563 | *(char**)ptr = (char*)SSPOPPTR; |
564 | break; |
79072805 |
565 | case SAVEt_HPTR: /* HV* reference */ |
566 | ptr = SSPOPPTR; |
567 | *(HV**)ptr = (HV*)SSPOPPTR; |
568 | break; |
569 | case SAVEt_APTR: /* AV* reference */ |
570 | ptr = SSPOPPTR; |
571 | *(AV**)ptr = (AV*)SSPOPPTR; |
572 | break; |
573 | case SAVEt_NSTAB: |
574 | gv = (GV*)SSPOPPTR; |
1f96a9ed |
575 | (void)sv_clear((SV*)gv); |
79072805 |
576 | break; |
fb73857a |
577 | case SAVEt_GP: /* scalar reference */ |
79072805 |
578 | ptr = SSPOPPTR; |
579 | gv = (GV*)SSPOPPTR; |
580 | gp_free(gv); |
581 | GvGP(gv) = (GP*)ptr; |
fb73857a |
582 | if (SvPOK(gv) && SvLEN(gv) > 0) { |
583 | Safefree(SvPVX(gv)); |
584 | } |
585 | SvPVX(gv) = (char *)SSPOPPTR; |
586 | SvCUR(gv) = (STRLEN)SSPOPIV; |
587 | SvLEN(gv) = (STRLEN)SSPOPIV; |
4633a7c4 |
588 | SvREFCNT_dec(gv); |
79072805 |
589 | break; |
8990e307 |
590 | case SAVEt_FREESV: |
591 | ptr = SSPOPPTR; |
592 | SvREFCNT_dec((SV*)ptr); |
593 | break; |
594 | case SAVEt_FREEOP: |
595 | ptr = SSPOPPTR; |
46fc3d4c |
596 | if (comppad) |
597 | curpad = AvARRAY(comppad); |
8990e307 |
598 | op_free((OP*)ptr); |
599 | break; |
600 | case SAVEt_FREEPV: |
601 | ptr = SSPOPPTR; |
602 | Safefree((char*)ptr); |
603 | break; |
604 | case SAVEt_CLEARSV: |
4aa0a1f7 |
605 | ptr = (void*)&curpad[SSPOPLONG]; |
8990e307 |
606 | sv = *(SV**)ptr; |
bc44cdaf |
607 | /* Can clear pad variable in place? */ |
608 | if (SvREFCNT(sv) <= 1 && !SvOBJECT(sv)) { |
8990e307 |
609 | if (SvTHINKFIRST(sv)) { |
610 | if (SvREADONLY(sv)) |
611 | croak("panic: leave_scope clearsv"); |
612 | if (SvROK(sv)) |
613 | sv_unref(sv); |
614 | } |
a0d0e21e |
615 | if (SvMAGICAL(sv)) |
616 | mg_free(sv); |
8990e307 |
617 | |
618 | switch (SvTYPE(sv)) { |
619 | case SVt_NULL: |
620 | break; |
621 | case SVt_PVAV: |
44a8e56a |
622 | av_clear((AV*)sv); |
8990e307 |
623 | break; |
624 | case SVt_PVHV: |
44a8e56a |
625 | hv_clear((HV*)sv); |
8990e307 |
626 | break; |
627 | case SVt_PVCV: |
5377b701 |
628 | croak("panic: leave_scope pad code"); |
629 | case SVt_RV: |
630 | case SVt_IV: |
631 | case SVt_NV: |
632 | (void)SvOK_off(sv); |
8990e307 |
633 | break; |
634 | default: |
a0d0e21e |
635 | (void)SvOK_off(sv); |
5377b701 |
636 | (void)SvOOK_off(sv); |
8990e307 |
637 | break; |
638 | } |
639 | } |
640 | else { /* Someone has a claim on this, so abandon it. */ |
4aa0a1f7 |
641 | U32 padflags = SvFLAGS(sv) & (SVs_PADBUSY|SVs_PADMY|SVs_PADTMP); |
8990e307 |
642 | SvREFCNT_dec(sv); /* Cast current value to the winds. */ |
643 | switch (SvTYPE(sv)) { /* Console ourselves with a new value */ |
644 | case SVt_PVAV: *(SV**)ptr = (SV*)newAV(); break; |
645 | case SVt_PVHV: *(SV**)ptr = (SV*)newHV(); break; |
646 | default: *(SV**)ptr = NEWSV(0,0); break; |
647 | } |
4aa0a1f7 |
648 | SvFLAGS(*(SV**)ptr) |= padflags; /* preserve pad nature */ |
8990e307 |
649 | } |
650 | break; |
651 | case SAVEt_DELETE: |
652 | ptr = SSPOPPTR; |
653 | hv = (HV*)ptr; |
654 | ptr = SSPOPPTR; |
748a9306 |
655 | (void)hv_delete(hv, (char*)ptr, (U32)SSPOPINT, G_DISCARD); |
adbc6bb1 |
656 | Safefree(ptr); |
8990e307 |
657 | break; |
a0d0e21e |
658 | case SAVEt_DESTRUCTOR: |
659 | ptr = SSPOPPTR; |
660 | (*SSPOPDPTR)(ptr); |
661 | break; |
662 | case SAVEt_REGCONTEXT: |
8e07c86e |
663 | { |
664 | I32 delta = SSPOPINT; |
665 | savestack_ix -= delta; /* regexp must have croaked */ |
666 | } |
a0d0e21e |
667 | break; |
55497cff |
668 | case SAVEt_STACK_POS: /* Position on Perl stack */ |
669 | { |
670 | I32 delta = SSPOPINT; |
671 | stack_sp = stack_base + delta; |
672 | } |
673 | break; |
462e5cf6 |
674 | case SAVEt_OP: |
675 | op = (OP*)SSPOPPTR; |
676 | break; |
79072805 |
677 | default: |
463ee0b2 |
678 | croak("panic: leave_scope inconsistency"); |
79072805 |
679 | } |
680 | } |
681 | } |
8990e307 |
682 | |
683 | #ifdef DEBUGGING |
1f96a9ed |
684 | |
8990e307 |
685 | void |
8ac85365 |
686 | cx_dump(CONTEXT *cx) |
8990e307 |
687 | { |
11343788 |
688 | dTHR; |
fb73857a |
689 | PerlIO_printf(Perl_debug_log, "CX %ld = %s\n", (long)(cx - cxstack), block_type[cx->cx_type]); |
8990e307 |
690 | if (cx->cx_type != CXt_SUBST) { |
760ac839 |
691 | PerlIO_printf(Perl_debug_log, "BLK_OLDSP = %ld\n", (long)cx->blk_oldsp); |
692 | PerlIO_printf(Perl_debug_log, "BLK_OLDCOP = 0x%lx\n", (long)cx->blk_oldcop); |
693 | PerlIO_printf(Perl_debug_log, "BLK_OLDMARKSP = %ld\n", (long)cx->blk_oldmarksp); |
694 | PerlIO_printf(Perl_debug_log, "BLK_OLDSCOPESP = %ld\n", (long)cx->blk_oldscopesp); |
695 | PerlIO_printf(Perl_debug_log, "BLK_OLDRETSP = %ld\n", (long)cx->blk_oldretsp); |
696 | PerlIO_printf(Perl_debug_log, "BLK_OLDPM = 0x%lx\n", (long)cx->blk_oldpm); |
697 | PerlIO_printf(Perl_debug_log, "BLK_GIMME = %s\n", cx->blk_gimme ? "LIST" : "SCALAR"); |
8990e307 |
698 | } |
699 | switch (cx->cx_type) { |
700 | case CXt_NULL: |
701 | case CXt_BLOCK: |
702 | break; |
703 | case CXt_SUB: |
760ac839 |
704 | PerlIO_printf(Perl_debug_log, "BLK_SUB.CV = 0x%lx\n", |
8990e307 |
705 | (long)cx->blk_sub.cv); |
760ac839 |
706 | PerlIO_printf(Perl_debug_log, "BLK_SUB.GV = 0x%lx\n", |
8990e307 |
707 | (long)cx->blk_sub.gv); |
760ac839 |
708 | PerlIO_printf(Perl_debug_log, "BLK_SUB.DFOUTGV = 0x%lx\n", |
8990e307 |
709 | (long)cx->blk_sub.dfoutgv); |
760ac839 |
710 | PerlIO_printf(Perl_debug_log, "BLK_SUB.OLDDEPTH = %ld\n", |
8990e307 |
711 | (long)cx->blk_sub.olddepth); |
760ac839 |
712 | PerlIO_printf(Perl_debug_log, "BLK_SUB.HASARGS = %d\n", |
8990e307 |
713 | (int)cx->blk_sub.hasargs); |
714 | break; |
715 | case CXt_EVAL: |
760ac839 |
716 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_IN_EVAL = %ld\n", |
8990e307 |
717 | (long)cx->blk_eval.old_in_eval); |
760ac839 |
718 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_OP_TYPE = %s (%s)\n", |
c07a80fd |
719 | op_name[cx->blk_eval.old_op_type], |
720 | op_desc[cx->blk_eval.old_op_type]); |
760ac839 |
721 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_NAME = %s\n", |
8990e307 |
722 | cx->blk_eval.old_name); |
760ac839 |
723 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_EVAL_ROOT = 0x%lx\n", |
8990e307 |
724 | (long)cx->blk_eval.old_eval_root); |
725 | break; |
726 | |
727 | case CXt_LOOP: |
760ac839 |
728 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.LABEL = %s\n", |
8990e307 |
729 | cx->blk_loop.label); |
760ac839 |
730 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.RESETSP = %ld\n", |
8990e307 |
731 | (long)cx->blk_loop.resetsp); |
760ac839 |
732 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.REDO_OP = 0x%lx\n", |
8990e307 |
733 | (long)cx->blk_loop.redo_op); |
760ac839 |
734 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.NEXT_OP = 0x%lx\n", |
8990e307 |
735 | (long)cx->blk_loop.next_op); |
760ac839 |
736 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.LAST_OP = 0x%lx\n", |
8990e307 |
737 | (long)cx->blk_loop.last_op); |
760ac839 |
738 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERIX = %ld\n", |
8990e307 |
739 | (long)cx->blk_loop.iterix); |
760ac839 |
740 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERARY = 0x%lx\n", |
8990e307 |
741 | (long)cx->blk_loop.iterary); |
760ac839 |
742 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERVAR = 0x%lx\n", |
8990e307 |
743 | (long)cx->blk_loop.itervar); |
744 | if (cx->blk_loop.itervar) |
760ac839 |
745 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERSAVE = 0x%lx\n", |
8990e307 |
746 | (long)cx->blk_loop.itersave); |
7a4c00b4 |
747 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERLVAL = 0x%lx\n", |
748 | (long)cx->blk_loop.iterlval); |
8990e307 |
749 | break; |
750 | |
751 | case CXt_SUBST: |
760ac839 |
752 | PerlIO_printf(Perl_debug_log, "SB_ITERS = %ld\n", |
8990e307 |
753 | (long)cx->sb_iters); |
760ac839 |
754 | PerlIO_printf(Perl_debug_log, "SB_MAXITERS = %ld\n", |
8990e307 |
755 | (long)cx->sb_maxiters); |
760ac839 |
756 | PerlIO_printf(Perl_debug_log, "SB_SAFEBASE = %ld\n", |
8990e307 |
757 | (long)cx->sb_safebase); |
760ac839 |
758 | PerlIO_printf(Perl_debug_log, "SB_ONCE = %ld\n", |
8990e307 |
759 | (long)cx->sb_once); |
760ac839 |
760 | PerlIO_printf(Perl_debug_log, "SB_ORIG = %s\n", |
8990e307 |
761 | cx->sb_orig); |
760ac839 |
762 | PerlIO_printf(Perl_debug_log, "SB_DSTR = 0x%lx\n", |
8990e307 |
763 | (long)cx->sb_dstr); |
760ac839 |
764 | PerlIO_printf(Perl_debug_log, "SB_TARG = 0x%lx\n", |
8990e307 |
765 | (long)cx->sb_targ); |
760ac839 |
766 | PerlIO_printf(Perl_debug_log, "SB_S = 0x%lx\n", |
8990e307 |
767 | (long)cx->sb_s); |
760ac839 |
768 | PerlIO_printf(Perl_debug_log, "SB_M = 0x%lx\n", |
8990e307 |
769 | (long)cx->sb_m); |
760ac839 |
770 | PerlIO_printf(Perl_debug_log, "SB_STREND = 0x%lx\n", |
8990e307 |
771 | (long)cx->sb_strend); |
c90c0ff4 |
772 | PerlIO_printf(Perl_debug_log, "SB_RXRES = 0x%lx\n", |
773 | (long)cx->sb_rxres); |
8990e307 |
774 | break; |
775 | } |
776 | } |
777 | #endif |