Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* scope.c |
79072805 | 2 | * |
9607fc9c | 3 | * Copyright (c) 1991-1997, Larry Wall |
79072805 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 | * | |
a0d0e21e LW |
8 | */ |
9 | ||
10 | /* | |
11 | * "For the fashion of Minas Tirith was such that it was built on seven | |
12 | * levels..." | |
79072805 LW |
13 | */ |
14 | ||
15 | #include "EXTERN.h" | |
16 | #include "perl.h" | |
17 | ||
a0d0e21e LW |
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 LW |
27 | return stack_sp; |
28 | } | |
29 | ||
79072805 LW |
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 LW |
36 | return cxstack_ix + 1; |
37 | } | |
38 | ||
39 | void | |
40 | push_return(retop) | |
41 | OP *retop; | |
42 | { | |
11343788 | 43 | dTHR; |
79072805 LW |
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 LW |
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 LW |
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 LW |
79 | } |
80 | ||
81 | void | |
a0d0e21e LW |
82 | markstack_grow() |
83 | { | |
11343788 | 84 | dTHR; |
a0d0e21e LW |
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 LW |
94 | savestack_grow() |
95 | { | |
11343788 | 96 | dTHR; |
79072805 LW |
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 LW |
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 LW |
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 LW |
116 | } |
117 | } | |
118 | ||
7a4c00b4 PP |
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 LW |
131 | MAGIC* mg; |
132 | bool oldtainted = tainted; | |
a0d0e21e | 133 | mg_get(osv); |
748a9306 LW |
134 | if (tainting && tainted && (mg = mg_find(osv, 't'))) { |
135 | SAVESPTR(mg->mg_obj); | |
136 | mg->mg_obj = osv; | |
137 | } | |
a0d0e21e LW |
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 LW |
147 | } |
148 | return sv; | |
149 | } | |
150 | ||
7a4c00b4 PP |
151 | SV * |
152 | save_scalar(gv) | |
153 | GV *gv; | |
154 | { | |
11343788 | 155 | dTHR; |
7a4c00b4 PP |
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 PP |
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 PP |
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 LW |
189 | SSPUSHINT(SAVEt_GP); |
190 | ||
5f05dabc PP |
191 | if (empty) { |
192 | register GP *gp; | |
193 | Newz(602, gp, 1, GP); | |
44a8e56a | 194 | GvGP(gv) = gp_ref(gp); |
5f05dabc PP |
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 PP |
201 | GvINTRO_on(gv); |
202 | } | |
79072805 | 203 | } |
79072805 | 204 | |
79072805 LW |
205 | AV * |
206 | save_ary(gv) | |
207 | GV *gv; | |
208 | { | |
11343788 | 209 | dTHR; |
fb73857a PP |
210 | AV *oav, *av; |
211 | ||
79072805 LW |
212 | SSCHECK(3); |
213 | SSPUSHPTR(gv); | |
fb73857a | 214 | SSPUSHPTR(oav = GvAVn(gv)); |
79072805 LW |
215 | SSPUSHINT(SAVEt_AV); |
216 | ||
217 | GvAV(gv) = Null(AV*); | |
fb73857a PP |
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 LW |
229 | } |
230 | ||
231 | HV * | |
232 | save_hash(gv) | |
233 | GV *gv; | |
234 | { | |
11343788 | 235 | dTHR; |
fb73857a PP |
236 | HV *ohv, *hv; |
237 | ||
79072805 LW |
238 | SSCHECK(3); |
239 | SSPUSHPTR(gv); | |
fb73857a | 240 | SSPUSHPTR(ohv = GvHVn(gv)); |
79072805 LW |
241 | SSPUSHINT(SAVEt_HV); |
242 | ||
243 | GvHV(gv) = Null(HV*); | |
fb73857a PP |
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 LW |
255 | } |
256 | ||
257 | void | |
258 | save_item(item) | |
259 | register SV *item; | |
260 | { | |
11343788 | 261 | dTHR; |
79072805 LW |
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 LW |
277 | SSCHECK(3); |
278 | SSPUSHINT(*intp); | |
279 | SSPUSHPTR(intp); | |
280 | SSPUSHINT(SAVEt_INT); | |
281 | } | |
282 | ||
283 | void | |
85e6fe83 LW |
284 | save_long(longp) |
285 | long *longp; | |
286 | { | |
11343788 | 287 | dTHR; |
85e6fe83 LW |
288 | SSCHECK(3); |
289 | SSPUSHLONG(*longp); | |
290 | SSPUSHPTR(longp); | |
291 | SSPUSHINT(SAVEt_LONG); | |
292 | } | |
293 | ||
294 | void | |
79072805 LW |
295 | save_I32(intp) |
296 | I32 *intp; | |
297 | { | |
11343788 | 298 | dTHR; |
79072805 LW |
299 | SSCHECK(3); |
300 | SSPUSHINT(*intp); | |
301 | SSPUSHPTR(intp); | |
302 | SSPUSHINT(SAVEt_I32); | |
303 | } | |
304 | ||
a0d0e21e | 305 | void |
55497cff PP |
306 | save_I16(intp) |
307 | I16 *intp; | |
308 | { | |
e858de61 | 309 | dTHR; |
55497cff PP |
310 | SSCHECK(3); |
311 | SSPUSHINT(*intp); | |
312 | SSPUSHPTR(intp); | |
313 | SSPUSHINT(SAVEt_I16); | |
314 | } | |
315 | ||
316 | void | |
a0d0e21e LW |
317 | save_iv(ivp) |
318 | IV *ivp; | |
319 | { | |
11343788 | 320 | dTHR; |
a0d0e21e | 321 | SSCHECK(3); |
4aa0a1f7 | 322 | SSPUSHIV(*ivp); |
a0d0e21e LW |
323 | SSPUSHPTR(ivp); |
324 | SSPUSHINT(SAVEt_IV); | |
325 | } | |
326 | ||
85e6fe83 LW |
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 LW |
335 | SSCHECK(3); |
336 | SSPUSHPTR(*pptr); | |
337 | SSPUSHPTR(pptr); | |
338 | SSPUSHINT(SAVEt_PPTR); | |
339 | } | |
340 | ||
79072805 LW |
341 | void |
342 | save_sptr(sptr) | |
343 | SV **sptr; | |
344 | { | |
11343788 | 345 | dTHR; |
79072805 LW |
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 LW |
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 LW |
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 LW |
380 | SSPUSHPTR(aptr); |
381 | SSPUSHINT(SAVEt_APTR); | |
382 | } | |
383 | ||
384 | void | |
8990e307 LW |
385 | save_freesv(sv) |
386 | SV *sv; | |
387 | { | |
11343788 | 388 | dTHR; |
8990e307 LW |
389 | SSCHECK(2); |
390 | SSPUSHPTR(sv); | |
391 | SSPUSHINT(SAVEt_FREESV); | |
392 | } | |
393 | ||
394 | void | |
11343788 MB |
395 | save_freeop(o) |
396 | OP *o; | |
8990e307 | 397 | { |
11343788 | 398 | dTHR; |
8990e307 | 399 | SSCHECK(2); |
11343788 | 400 | SSPUSHPTR(o); |
8990e307 LW |
401 | SSPUSHINT(SAVEt_FREEOP); |
402 | } | |
403 | ||
404 | void | |
405 | save_freepv(pv) | |
406 | char *pv; | |
407 | { | |
11343788 | 408 | dTHR; |
8990e307 LW |
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 LW |
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 LW |
431 | SSCHECK(4); |
432 | SSPUSHINT(klen); | |
433 | SSPUSHPTR(key); | |
434 | SSPUSHPTR(hv); | |
435 | SSPUSHINT(SAVEt_DELETE); | |
436 | } | |
437 | ||
438 | void | |
79072805 LW |
439 | save_list(sarg,maxsarg) |
440 | register SV **sarg; | |
441 | I32 maxsarg; | |
442 | { | |
11343788 | 443 | dTHR; |
79072805 LW |
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 LW |
458 | save_destructor(f,p) |
459 | void (*f) _((void*)); | |
460 | void* p; | |
461 | { | |
11343788 | 462 | dTHR; |
a0d0e21e LW |
463 | SSCHECK(3); |
464 | SSPUSHDPTR(f); | |
465 | SSPUSHPTR(p); | |
466 | SSPUSHINT(SAVEt_DESTRUCTOR); | |
467 | } | |
468 | ||
469 | void | |
462e5cf6 MB |
470 | save_op() |
471 | { | |
472 | dTHR; | |
473 | SSCHECK(2); | |
474 | SSPUSHPTR(op); | |
475 | SSPUSHINT(SAVEt_OP); | |
476 | } | |
477 | ||
478 | void | |
79072805 LW |
479 | leave_scope(base) |
480 | I32 base; | |
481 | { | |
11343788 | 482 | dTHR; |
79072805 LW |
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 LW |
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 LW |
501 | break; |
502 | case SAVEt_SV: /* scalar reference */ | |
503 | value = (SV*)SSPOPPTR; | |
504 | gv = (GV*)SSPOPPTR; | |
7a4c00b4 PP |
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 LW |
512 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv) && |
513 | SvTYPE(sv) != SVt_PVGV) | |
514 | { | |
a0d0e21e LW |
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 PP |
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 LW |
534 | break; |
535 | case SAVEt_AV: /* array reference */ | |
536 | av = (AV*)SSPOPPTR; | |
537 | gv = (GV*)SSPOPPTR; | |
fb73857a PP |
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 PP |
547 | if (SvMAGICAL(av)) { |
548 | localizing = 2; | |
549 | SvSETMAGIC((SV*)av); | |
550 | localizing = 0; | |
551 | } | |
79072805 LW |
552 | break; |
553 | case SAVEt_HV: /* hash reference */ | |
554 | hv = (HV*)SSPOPPTR; | |
555 | gv = (GV*)SSPOPPTR; | |
fb73857a PP |
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 PP |
565 | if (SvMAGICAL(hv)) { |
566 | localizing = 2; | |
567 | SvSETMAGIC((SV*)hv); | |
568 | localizing = 0; | |
569 | } | |
79072805 LW |
570 | break; |
571 | case SAVEt_INT: /* int reference */ | |
572 | ptr = SSPOPPTR; | |
573 | *(int*)ptr = (int)SSPOPINT; | |
574 | break; | |
85e6fe83 LW |
575 | case SAVEt_LONG: /* long reference */ |
576 | ptr = SSPOPPTR; | |
577 | *(long*)ptr = (long)SSPOPLONG; | |
578 | break; | |
79072805 LW |
579 | case SAVEt_I32: /* I32 reference */ |
580 | ptr = SSPOPPTR; | |
581 | *(I32*)ptr = (I32)SSPOPINT; | |
582 | break; | |
55497cff PP |
583 | case SAVEt_I16: /* I16 reference */ |
584 | ptr = SSPOPPTR; | |
585 | *(I16*)ptr = (I16)SSPOPINT; | |
586 | break; | |
a0d0e21e LW |
587 | case SAVEt_IV: /* IV reference */ |
588 | ptr = SSPOPPTR; | |
589 | *(IV*)ptr = (IV)SSPOPIV; | |
590 | break; | |
79072805 LW |
591 | case SAVEt_SPTR: /* SV* reference */ |
592 | ptr = SSPOPPTR; | |
593 | *(SV**)ptr = (SV*)SSPOPPTR; | |
594 | break; | |
85e6fe83 LW |
595 | case SAVEt_PPTR: /* char* reference */ |
596 | ptr = SSPOPPTR; | |
597 | *(char**)ptr = (char*)SSPOPPTR; | |
598 | break; | |
79072805 LW |
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 LW |
612 | ptr = SSPOPPTR; |
613 | gv = (GV*)SSPOPPTR; | |
614 | gp_free(gv); | |
615 | GvGP(gv) = (GP*)ptr; | |
fb73857a PP |
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 LW |
624 | case SAVEt_FREESV: |
625 | ptr = SSPOPPTR; | |
626 | SvREFCNT_dec((SV*)ptr); | |
627 | break; | |
628 | case SAVEt_FREEOP: | |
629 | ptr = SSPOPPTR; | |
46fc3d4c PP |
630 | if (comppad) |
631 | curpad = AvARRAY(comppad); | |
8990e307 LW |
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 GS |
641 | /* Can clear pad variable in place? */ |
642 | if (SvREFCNT(sv) <= 1 && !SvOBJECT(sv)) { | |
8990e307 LW |
643 | if (SvTHINKFIRST(sv)) { |
644 | if (SvREADONLY(sv)) | |
645 | croak("panic: leave_scope clearsv"); | |
646 | if (SvROK(sv)) | |
647 | sv_unref(sv); | |
648 | } | |
a0d0e21e LW |
649 | if (SvMAGICAL(sv)) |
650 | mg_free(sv); | |
8990e307 LW |
651 | |
652 | switch (SvTYPE(sv)) { | |
653 | case SVt_NULL: | |
654 | break; | |
655 | case SVt_PVAV: | |
44a8e56a | 656 | av_clear((AV*)sv); |
8990e307 LW |
657 | break; |
658 | case SVt_PVHV: | |
44a8e56a | 659 | hv_clear((HV*)sv); |
8990e307 LW |
660 | break; |
661 | case SVt_PVCV: | |
5377b701 CS |
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 LW |
667 | break; |
668 | default: | |
a0d0e21e | 669 | (void)SvOK_off(sv); |
5377b701 | 670 | (void)SvOOK_off(sv); |
8990e307 LW |
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 LW |
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 LW |
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 LW |
692 | case SAVEt_DESTRUCTOR: |
693 | ptr = SSPOPPTR; | |
694 | (*SSPOPDPTR)(ptr); | |
695 | break; | |
696 | case SAVEt_REGCONTEXT: | |
8e07c86e AD |
697 | { |
698 | I32 delta = SSPOPINT; | |
699 | savestack_ix -= delta; /* regexp must have croaked */ | |
700 | } | |
a0d0e21e | 701 | break; |
55497cff PP |
702 | case SAVEt_STACK_POS: /* Position on Perl stack */ |
703 | { | |
704 | I32 delta = SSPOPINT; | |
705 | stack_sp = stack_base + delta; | |
706 | } | |
707 | break; | |
462e5cf6 MB |
708 | case SAVEt_OP: |
709 | op = (OP*)SSPOPPTR; | |
710 | break; | |
79072805 | 711 | default: |
463ee0b2 | 712 | croak("panic: leave_scope inconsistency"); |
79072805 LW |
713 | } |
714 | } | |
715 | } | |
8990e307 LW |
716 | |
717 | #ifdef DEBUGGING | |
1f96a9ed | 718 | |
8990e307 LW |
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 LW |
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 LW |
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 LW |
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 PP |
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 LW |
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 LW |
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 PP |
782 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERLVAL = 0x%lx\n", |
783 | (long)cx->blk_loop.iterlval); | |
8990e307 LW |
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 PP |
807 | PerlIO_printf(Perl_debug_log, "SB_RXRES = 0x%lx\n", |
808 | (long)cx->sb_rxres); | |
8990e307 LW |
809 | break; |
810 | } | |
811 | } | |
812 | #endif |