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; |
a60c0954 |
22 | #if defined(DEBUGGING) && !defined(USE_THREADS) |
23 | static int growing = 0; |
24 | if (growing++) |
25 | abort(); |
26 | #endif |
a0d0e21e |
27 | stack_sp = sp; |
2ce36478 |
28 | #ifndef STRESS_REALLOC |
1f96a9ed |
29 | av_extend(curstack, (p - stack_base) + (n) + 128); |
2ce36478 |
30 | #else |
31 | av_extend(curstack, (p - stack_base) + (n) + 1); |
32 | #endif |
a60c0954 |
33 | #if defined(DEBUGGING) && !defined(USE_THREADS) |
34 | growing--; |
35 | #endif |
a0d0e21e |
36 | return stack_sp; |
37 | } |
38 | |
2ce36478 |
39 | #ifndef STRESS_REALLOC |
40 | #define GROW(old) ((old) * 3 / 2) |
41 | #else |
42 | #define GROW(old) ((old) + 1) |
43 | #endif |
44 | |
79072805 |
45 | I32 |
8ac85365 |
46 | cxinc(void) |
79072805 |
47 | { |
11343788 |
48 | dTHR; |
2ce36478 |
49 | cxstack_max = GROW(cxstack_max); |
c09156bb |
50 | Renew(cxstack, cxstack_max + 1, PERL_CONTEXT); /* XXX should fix CXINC macro */ |
79072805 |
51 | return cxstack_ix + 1; |
52 | } |
53 | |
54 | void |
8ac85365 |
55 | push_return(OP *retop) |
79072805 |
56 | { |
11343788 |
57 | dTHR; |
79072805 |
58 | if (retstack_ix == retstack_max) { |
2ce36478 |
59 | retstack_max = GROW(retstack_max); |
79072805 |
60 | Renew(retstack, retstack_max, OP*); |
61 | } |
62 | retstack[retstack_ix++] = retop; |
63 | } |
64 | |
65 | OP * |
8ac85365 |
66 | pop_return(void) |
79072805 |
67 | { |
11343788 |
68 | dTHR; |
79072805 |
69 | if (retstack_ix > 0) |
70 | return retstack[--retstack_ix]; |
71 | else |
72 | return Nullop; |
73 | } |
74 | |
75 | void |
8ac85365 |
76 | push_scope(void) |
79072805 |
77 | { |
11343788 |
78 | dTHR; |
79072805 |
79 | if (scopestack_ix == scopestack_max) { |
2ce36478 |
80 | scopestack_max = GROW(scopestack_max); |
79072805 |
81 | Renew(scopestack, scopestack_max, I32); |
82 | } |
83 | scopestack[scopestack_ix++] = savestack_ix; |
84 | |
85 | } |
86 | |
87 | void |
8ac85365 |
88 | pop_scope(void) |
79072805 |
89 | { |
11343788 |
90 | dTHR; |
79072805 |
91 | I32 oldsave = scopestack[--scopestack_ix]; |
8990e307 |
92 | LEAVE_SCOPE(oldsave); |
79072805 |
93 | } |
94 | |
95 | void |
8ac85365 |
96 | markstack_grow(void) |
a0d0e21e |
97 | { |
11343788 |
98 | dTHR; |
a0d0e21e |
99 | I32 oldmax = markstack_max - markstack; |
2ce36478 |
100 | I32 newmax = GROW(oldmax); |
a0d0e21e |
101 | |
102 | Renew(markstack, newmax, I32); |
103 | markstack_ptr = markstack + oldmax; |
104 | markstack_max = markstack + newmax; |
105 | } |
106 | |
107 | void |
8ac85365 |
108 | savestack_grow(void) |
79072805 |
109 | { |
11343788 |
110 | dTHR; |
2ce36478 |
111 | savestack_max = GROW(savestack_max) + 4; |
79072805 |
112 | Renew(savestack, savestack_max, ANY); |
113 | } |
114 | |
2ce36478 |
115 | #undef GROW |
116 | |
79072805 |
117 | void |
8ac85365 |
118 | free_tmps(void) |
79072805 |
119 | { |
11343788 |
120 | dTHR; |
79072805 |
121 | /* XXX should tmps_floor live in cxstack? */ |
122 | I32 myfloor = tmps_floor; |
123 | while (tmps_ix > myfloor) { /* clean up after last statement */ |
124 | SV* sv = tmps_stack[tmps_ix]; |
125 | tmps_stack[tmps_ix--] = Nullsv; |
463ee0b2 |
126 | if (sv) { |
127 | #ifdef DEBUGGING |
128 | SvTEMP_off(sv); |
129 | #endif |
8990e307 |
130 | SvREFCNT_dec(sv); /* note, can modify tmps_ix!!! */ |
463ee0b2 |
131 | } |
79072805 |
132 | } |
133 | } |
134 | |
7a4c00b4 |
135 | static SV * |
8ac85365 |
136 | save_scalar_at(SV **sptr) |
79072805 |
137 | { |
11343788 |
138 | dTHR; |
79072805 |
139 | register SV *sv; |
7a4c00b4 |
140 | SV *osv = *sptr; |
79072805 |
141 | |
7a4c00b4 |
142 | sv = *sptr = NEWSV(0,0); |
a0d0e21e |
143 | if (SvTYPE(osv) >= SVt_PVMG && SvMAGIC(osv) && SvTYPE(osv) != SVt_PVGV) { |
79072805 |
144 | sv_upgrade(sv, SvTYPE(osv)); |
a0d0e21e |
145 | if (SvGMAGICAL(osv)) { |
748a9306 |
146 | MAGIC* mg; |
147 | bool oldtainted = tainted; |
a0d0e21e |
148 | mg_get(osv); |
748a9306 |
149 | if (tainting && tainted && (mg = mg_find(osv, 't'))) { |
150 | SAVESPTR(mg->mg_obj); |
151 | mg->mg_obj = osv; |
152 | } |
a0d0e21e |
153 | SvFLAGS(osv) |= (SvFLAGS(osv) & |
154 | (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
748a9306 |
155 | tainted = oldtainted; |
a0d0e21e |
156 | } |
79072805 |
157 | SvMAGIC(sv) = SvMAGIC(osv); |
a0d0e21e |
158 | SvFLAGS(sv) |= SvMAGICAL(osv); |
748a9306 |
159 | localizing = 1; |
79072805 |
160 | SvSETMAGIC(sv); |
748a9306 |
161 | localizing = 0; |
79072805 |
162 | } |
163 | return sv; |
164 | } |
165 | |
7a4c00b4 |
166 | SV * |
8ac85365 |
167 | save_scalar(GV *gv) |
7a4c00b4 |
168 | { |
11343788 |
169 | dTHR; |
4e4c362e |
170 | SV **sptr = &GvSV(gv); |
7a4c00b4 |
171 | SSCHECK(3); |
4e4c362e |
172 | SSPUSHPTR(SvREFCNT_inc(gv)); |
173 | SSPUSHPTR(SvREFCNT_inc(*sptr)); |
7a4c00b4 |
174 | SSPUSHINT(SAVEt_SV); |
4e4c362e |
175 | return save_scalar_at(sptr); |
7a4c00b4 |
176 | } |
177 | |
178 | SV* |
8ac85365 |
179 | save_svref(SV **sptr) |
7a4c00b4 |
180 | { |
11343788 |
181 | dTHR; |
7a4c00b4 |
182 | SSCHECK(3); |
183 | SSPUSHPTR(sptr); |
4e4c362e |
184 | SSPUSHPTR(SvREFCNT_inc(*sptr)); |
7a4c00b4 |
185 | SSPUSHINT(SAVEt_SVREF); |
186 | return save_scalar_at(sptr); |
187 | } |
188 | |
79072805 |
189 | void |
8ac85365 |
190 | save_gp(GV *gv, I32 empty) |
79072805 |
191 | { |
e858de61 |
192 | dTHR; |
fb73857a |
193 | SSCHECK(6); |
194 | SSPUSHIV((IV)SvLEN(gv)); |
195 | SvLEN(gv) = 0; /* forget that anything was allocated here */ |
196 | SSPUSHIV((IV)SvCUR(gv)); |
197 | SSPUSHPTR(SvPVX(gv)); |
198 | SvPOK_off(gv); |
4633a7c4 |
199 | SSPUSHPTR(SvREFCNT_inc(gv)); |
5f05dabc |
200 | SSPUSHPTR(GvGP(gv)); |
79072805 |
201 | SSPUSHINT(SAVEt_GP); |
202 | |
5f05dabc |
203 | if (empty) { |
204 | register GP *gp; |
205 | Newz(602, gp, 1, GP); |
44a8e56a |
206 | GvGP(gv) = gp_ref(gp); |
5f05dabc |
207 | GvSV(gv) = NEWSV(72,0); |
208 | GvLINE(gv) = curcop->cop_line; |
209 | GvEGV(gv) = gv; |
210 | } |
211 | else { |
44a8e56a |
212 | gp_ref(GvGP(gv)); |
5f05dabc |
213 | GvINTRO_on(gv); |
214 | } |
79072805 |
215 | } |
79072805 |
216 | |
79072805 |
217 | AV * |
8ac85365 |
218 | save_ary(GV *gv) |
79072805 |
219 | { |
11343788 |
220 | dTHR; |
67a38de0 |
221 | AV *oav = GvAVn(gv); |
222 | AV *av; |
fb73857a |
223 | |
67a38de0 |
224 | if (!AvREAL(oav) && AvREIFY(oav)) |
225 | av_reify(oav); |
79072805 |
226 | SSCHECK(3); |
227 | SSPUSHPTR(gv); |
67a38de0 |
228 | SSPUSHPTR(oav); |
79072805 |
229 | SSPUSHINT(SAVEt_AV); |
230 | |
231 | GvAV(gv) = Null(AV*); |
fb73857a |
232 | av = GvAVn(gv); |
233 | if (SvMAGIC(oav)) { |
234 | SvMAGIC(av) = SvMAGIC(oav); |
235 | SvFLAGS(av) |= SvMAGICAL(oav); |
236 | SvMAGICAL_off(oav); |
237 | SvMAGIC(oav) = 0; |
238 | localizing = 1; |
239 | SvSETMAGIC((SV*)av); |
240 | localizing = 0; |
241 | } |
242 | return av; |
79072805 |
243 | } |
244 | |
245 | HV * |
8ac85365 |
246 | save_hash(GV *gv) |
79072805 |
247 | { |
11343788 |
248 | dTHR; |
fb73857a |
249 | HV *ohv, *hv; |
250 | |
79072805 |
251 | SSCHECK(3); |
252 | SSPUSHPTR(gv); |
fb73857a |
253 | SSPUSHPTR(ohv = GvHVn(gv)); |
79072805 |
254 | SSPUSHINT(SAVEt_HV); |
255 | |
256 | GvHV(gv) = Null(HV*); |
fb73857a |
257 | hv = GvHVn(gv); |
258 | if (SvMAGIC(ohv)) { |
259 | SvMAGIC(hv) = SvMAGIC(ohv); |
260 | SvFLAGS(hv) |= SvMAGICAL(ohv); |
261 | SvMAGICAL_off(ohv); |
262 | SvMAGIC(ohv) = 0; |
263 | localizing = 1; |
264 | SvSETMAGIC((SV*)hv); |
265 | localizing = 0; |
266 | } |
267 | return hv; |
79072805 |
268 | } |
269 | |
270 | void |
8ac85365 |
271 | save_item(register SV *item) |
79072805 |
272 | { |
11343788 |
273 | dTHR; |
f46d017c |
274 | register SV *sv = NEWSV(0,0); |
79072805 |
275 | |
f46d017c |
276 | sv_setsv(sv,item); |
79072805 |
277 | SSCHECK(3); |
278 | SSPUSHPTR(item); /* remember the pointer */ |
79072805 |
279 | SSPUSHPTR(sv); /* remember the value */ |
280 | SSPUSHINT(SAVEt_ITEM); |
281 | } |
282 | |
283 | void |
8ac85365 |
284 | save_int(int *intp) |
79072805 |
285 | { |
11343788 |
286 | dTHR; |
79072805 |
287 | SSCHECK(3); |
288 | SSPUSHINT(*intp); |
289 | SSPUSHPTR(intp); |
290 | SSPUSHINT(SAVEt_INT); |
291 | } |
292 | |
293 | void |
8ac85365 |
294 | save_long(long int *longp) |
85e6fe83 |
295 | { |
11343788 |
296 | dTHR; |
85e6fe83 |
297 | SSCHECK(3); |
298 | SSPUSHLONG(*longp); |
299 | SSPUSHPTR(longp); |
300 | SSPUSHINT(SAVEt_LONG); |
301 | } |
302 | |
303 | void |
8ac85365 |
304 | save_I32(I32 *intp) |
79072805 |
305 | { |
11343788 |
306 | dTHR; |
79072805 |
307 | SSCHECK(3); |
308 | SSPUSHINT(*intp); |
309 | SSPUSHPTR(intp); |
310 | SSPUSHINT(SAVEt_I32); |
311 | } |
312 | |
a0d0e21e |
313 | void |
8ac85365 |
314 | save_I16(I16 *intp) |
55497cff |
315 | { |
e858de61 |
316 | dTHR; |
55497cff |
317 | SSCHECK(3); |
318 | SSPUSHINT(*intp); |
319 | SSPUSHPTR(intp); |
320 | SSPUSHINT(SAVEt_I16); |
321 | } |
322 | |
323 | void |
8ac85365 |
324 | save_iv(IV *ivp) |
a0d0e21e |
325 | { |
11343788 |
326 | dTHR; |
a0d0e21e |
327 | SSCHECK(3); |
4aa0a1f7 |
328 | SSPUSHIV(*ivp); |
a0d0e21e |
329 | SSPUSHPTR(ivp); |
330 | SSPUSHINT(SAVEt_IV); |
331 | } |
332 | |
85e6fe83 |
333 | /* Cannot use save_sptr() to store a char* since the SV** cast will |
334 | * force word-alignment and we'll miss the pointer. |
335 | */ |
336 | void |
8ac85365 |
337 | save_pptr(char **pptr) |
85e6fe83 |
338 | { |
11343788 |
339 | dTHR; |
85e6fe83 |
340 | SSCHECK(3); |
341 | SSPUSHPTR(*pptr); |
342 | SSPUSHPTR(pptr); |
343 | SSPUSHINT(SAVEt_PPTR); |
344 | } |
345 | |
79072805 |
346 | void |
8ac85365 |
347 | save_sptr(SV **sptr) |
79072805 |
348 | { |
11343788 |
349 | dTHR; |
79072805 |
350 | SSCHECK(3); |
351 | SSPUSHPTR(*sptr); |
352 | SSPUSHPTR(sptr); |
353 | SSPUSHINT(SAVEt_SPTR); |
354 | } |
355 | |
54b9620d |
356 | SV ** |
357 | save_threadsv(PADOFFSET i) |
358 | { |
359 | #ifdef USE_THREADS |
360 | dTHR; |
940cb80d |
361 | SV **svp = &THREADSV(i); /* XXX Change to save by offset */ |
54b9620d |
362 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), "save_threadsv %u: %p %p:%s\n", |
363 | i, svp, *svp, SvPEEK(*svp))); |
364 | save_svref(svp); |
365 | return svp; |
366 | #else |
367 | croak("panic: save_threadsv called in non-threaded perl"); |
368 | return 0; |
369 | #endif /* USE_THREADS */ |
370 | } |
371 | |
79072805 |
372 | void |
8ac85365 |
373 | save_nogv(GV *gv) |
79072805 |
374 | { |
11343788 |
375 | dTHR; |
79072805 |
376 | SSCHECK(2); |
377 | SSPUSHPTR(gv); |
378 | SSPUSHINT(SAVEt_NSTAB); |
379 | } |
380 | |
381 | void |
8ac85365 |
382 | save_hptr(HV **hptr) |
79072805 |
383 | { |
11343788 |
384 | dTHR; |
79072805 |
385 | SSCHECK(3); |
85e6fe83 |
386 | SSPUSHPTR(*hptr); |
79072805 |
387 | SSPUSHPTR(hptr); |
388 | SSPUSHINT(SAVEt_HPTR); |
389 | } |
390 | |
391 | void |
8ac85365 |
392 | save_aptr(AV **aptr) |
79072805 |
393 | { |
11343788 |
394 | dTHR; |
79072805 |
395 | SSCHECK(3); |
85e6fe83 |
396 | SSPUSHPTR(*aptr); |
79072805 |
397 | SSPUSHPTR(aptr); |
398 | SSPUSHINT(SAVEt_APTR); |
399 | } |
400 | |
401 | void |
8ac85365 |
402 | save_freesv(SV *sv) |
8990e307 |
403 | { |
11343788 |
404 | dTHR; |
8990e307 |
405 | SSCHECK(2); |
406 | SSPUSHPTR(sv); |
407 | SSPUSHINT(SAVEt_FREESV); |
408 | } |
409 | |
410 | void |
8ac85365 |
411 | save_freeop(OP *o) |
8990e307 |
412 | { |
11343788 |
413 | dTHR; |
8990e307 |
414 | SSCHECK(2); |
11343788 |
415 | SSPUSHPTR(o); |
8990e307 |
416 | SSPUSHINT(SAVEt_FREEOP); |
417 | } |
418 | |
419 | void |
8ac85365 |
420 | save_freepv(char *pv) |
8990e307 |
421 | { |
11343788 |
422 | dTHR; |
8990e307 |
423 | SSCHECK(2); |
424 | SSPUSHPTR(pv); |
425 | SSPUSHINT(SAVEt_FREEPV); |
426 | } |
427 | |
428 | void |
8ac85365 |
429 | save_clearsv(SV **svp) |
8990e307 |
430 | { |
11343788 |
431 | dTHR; |
8990e307 |
432 | SSCHECK(2); |
4aa0a1f7 |
433 | SSPUSHLONG((long)(svp-curpad)); |
8990e307 |
434 | SSPUSHINT(SAVEt_CLEARSV); |
435 | } |
436 | |
437 | void |
8ac85365 |
438 | save_delete(HV *hv, char *key, I32 klen) |
8990e307 |
439 | { |
11343788 |
440 | dTHR; |
8990e307 |
441 | SSCHECK(4); |
442 | SSPUSHINT(klen); |
443 | SSPUSHPTR(key); |
4e4c362e |
444 | SSPUSHPTR(SvREFCNT_inc(hv)); |
8990e307 |
445 | SSPUSHINT(SAVEt_DELETE); |
446 | } |
447 | |
448 | void |
5d863698 |
449 | save_list(register SV **sarg, I32 maxsarg) |
79072805 |
450 | { |
11343788 |
451 | dTHR; |
79072805 |
452 | register SV *sv; |
453 | register I32 i; |
454 | |
79072805 |
455 | for (i = 1; i <= maxsarg; i++) { |
79072805 |
456 | sv = NEWSV(0,0); |
457 | sv_setsv(sv,sarg[i]); |
f46d017c |
458 | SSCHECK(3); |
459 | SSPUSHPTR(sarg[i]); /* remember the pointer */ |
79072805 |
460 | SSPUSHPTR(sv); /* remember the value */ |
461 | SSPUSHINT(SAVEt_ITEM); |
462 | } |
463 | } |
464 | |
465 | void |
8ac85365 |
466 | save_destructor(void (*f) (void *), void *p) |
a0d0e21e |
467 | { |
11343788 |
468 | dTHR; |
a0d0e21e |
469 | SSCHECK(3); |
470 | SSPUSHDPTR(f); |
471 | SSPUSHPTR(p); |
472 | SSPUSHINT(SAVEt_DESTRUCTOR); |
473 | } |
474 | |
475 | void |
4e4c362e |
476 | save_aelem(AV *av, I32 idx, SV **sptr) |
477 | { |
478 | dTHR; |
479 | SSCHECK(4); |
480 | SSPUSHPTR(SvREFCNT_inc(av)); |
481 | SSPUSHINT(idx); |
482 | SSPUSHPTR(SvREFCNT_inc(*sptr)); |
483 | SSPUSHINT(SAVEt_AELEM); |
484 | save_scalar_at(sptr); |
485 | } |
486 | |
487 | void |
488 | save_helem(HV *hv, SV *key, SV **sptr) |
489 | { |
490 | dTHR; |
491 | SSCHECK(4); |
492 | SSPUSHPTR(SvREFCNT_inc(hv)); |
493 | SSPUSHPTR(SvREFCNT_inc(key)); |
494 | SSPUSHPTR(SvREFCNT_inc(*sptr)); |
495 | SSPUSHINT(SAVEt_HELEM); |
496 | save_scalar_at(sptr); |
497 | } |
498 | |
499 | void |
8ac85365 |
500 | save_op(void) |
462e5cf6 |
501 | { |
502 | dTHR; |
503 | SSCHECK(2); |
504 | SSPUSHPTR(op); |
505 | SSPUSHINT(SAVEt_OP); |
506 | } |
507 | |
508 | void |
8ac85365 |
509 | leave_scope(I32 base) |
79072805 |
510 | { |
11343788 |
511 | dTHR; |
79072805 |
512 | register SV *sv; |
513 | register SV *value; |
514 | register GV *gv; |
515 | register AV *av; |
516 | register HV *hv; |
517 | register void* ptr; |
161b7d16 |
518 | I32 i; |
79072805 |
519 | |
520 | if (base < -1) |
463ee0b2 |
521 | croak("panic: corrupt saved stack index"); |
79072805 |
522 | while (savestack_ix > base) { |
523 | switch (SSPOPINT) { |
524 | case SAVEt_ITEM: /* normal string */ |
525 | value = (SV*)SSPOPPTR; |
526 | sv = (SV*)SSPOPPTR; |
527 | sv_replace(sv,value); |
748a9306 |
528 | localizing = 2; |
79072805 |
529 | SvSETMAGIC(sv); |
748a9306 |
530 | localizing = 0; |
79072805 |
531 | break; |
532 | case SAVEt_SV: /* scalar reference */ |
533 | value = (SV*)SSPOPPTR; |
534 | gv = (GV*)SSPOPPTR; |
7a4c00b4 |
535 | ptr = &GvSV(gv); |
4e4c362e |
536 | SvREFCNT_dec(gv); |
7a4c00b4 |
537 | goto restore_sv; |
79072805 |
538 | case SAVEt_SVREF: /* scalar reference */ |
7a4c00b4 |
539 | value = (SV*)SSPOPPTR; |
79072805 |
540 | ptr = SSPOPPTR; |
7a4c00b4 |
541 | restore_sv: |
79072805 |
542 | sv = *(SV**)ptr; |
54b9620d |
543 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
544 | "restore svref: %p %p:%s -> %p:%s\n", |
545 | ptr, sv, SvPEEK(sv), value, SvPEEK(value))); |
748a9306 |
546 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv) && |
547 | SvTYPE(sv) != SVt_PVGV) |
548 | { |
a0d0e21e |
549 | (void)SvUPGRADE(value, SvTYPE(sv)); |
550 | SvMAGIC(value) = SvMAGIC(sv); |
551 | SvFLAGS(value) |= SvMAGICAL(sv); |
552 | SvMAGICAL_off(sv); |
79072805 |
553 | SvMAGIC(sv) = 0; |
a0d0e21e |
554 | } |
7a4c00b4 |
555 | else if (SvTYPE(value) >= SVt_PVMG && SvMAGIC(value) && |
556 | SvTYPE(value) != SVt_PVGV) |
557 | { |
558 | SvFLAGS(value) |= (SvFLAGS(value) & |
559 | (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
560 | SvMAGICAL_off(value); |
561 | SvMAGIC(value) = 0; |
562 | } |
8990e307 |
563 | SvREFCNT_dec(sv); |
a0d0e21e |
564 | *(SV**)ptr = value; |
748a9306 |
565 | localizing = 2; |
a0d0e21e |
566 | SvSETMAGIC(value); |
748a9306 |
567 | localizing = 0; |
4e4c362e |
568 | SvREFCNT_dec(value); |
79072805 |
569 | break; |
570 | case SAVEt_AV: /* array reference */ |
571 | av = (AV*)SSPOPPTR; |
572 | gv = (GV*)SSPOPPTR; |
fb73857a |
573 | if (GvAV(gv)) { |
574 | AV *goner = GvAV(gv); |
575 | SvMAGIC(av) = SvMAGIC(goner); |
576 | SvFLAGS(av) |= SvMAGICAL(goner); |
577 | SvMAGICAL_off(goner); |
578 | SvMAGIC(goner) = 0; |
579 | SvREFCNT_dec(goner); |
580 | } |
79072805 |
581 | GvAV(gv) = av; |
fb73857a |
582 | if (SvMAGICAL(av)) { |
583 | localizing = 2; |
584 | SvSETMAGIC((SV*)av); |
585 | localizing = 0; |
586 | } |
79072805 |
587 | break; |
588 | case SAVEt_HV: /* hash reference */ |
589 | hv = (HV*)SSPOPPTR; |
590 | gv = (GV*)SSPOPPTR; |
fb73857a |
591 | if (GvHV(gv)) { |
592 | HV *goner = GvHV(gv); |
593 | SvMAGIC(hv) = SvMAGIC(goner); |
594 | SvFLAGS(hv) |= SvMAGICAL(goner); |
595 | SvMAGICAL_off(goner); |
596 | SvMAGIC(goner) = 0; |
597 | SvREFCNT_dec(goner); |
598 | } |
79072805 |
599 | GvHV(gv) = hv; |
fb73857a |
600 | if (SvMAGICAL(hv)) { |
601 | localizing = 2; |
602 | SvSETMAGIC((SV*)hv); |
603 | localizing = 0; |
604 | } |
79072805 |
605 | break; |
606 | case SAVEt_INT: /* int reference */ |
607 | ptr = SSPOPPTR; |
608 | *(int*)ptr = (int)SSPOPINT; |
609 | break; |
85e6fe83 |
610 | case SAVEt_LONG: /* long reference */ |
611 | ptr = SSPOPPTR; |
612 | *(long*)ptr = (long)SSPOPLONG; |
613 | break; |
79072805 |
614 | case SAVEt_I32: /* I32 reference */ |
615 | ptr = SSPOPPTR; |
616 | *(I32*)ptr = (I32)SSPOPINT; |
617 | break; |
55497cff |
618 | case SAVEt_I16: /* I16 reference */ |
619 | ptr = SSPOPPTR; |
620 | *(I16*)ptr = (I16)SSPOPINT; |
621 | break; |
a0d0e21e |
622 | case SAVEt_IV: /* IV reference */ |
623 | ptr = SSPOPPTR; |
624 | *(IV*)ptr = (IV)SSPOPIV; |
625 | break; |
79072805 |
626 | case SAVEt_SPTR: /* SV* reference */ |
627 | ptr = SSPOPPTR; |
628 | *(SV**)ptr = (SV*)SSPOPPTR; |
629 | break; |
85e6fe83 |
630 | case SAVEt_PPTR: /* char* reference */ |
631 | ptr = SSPOPPTR; |
632 | *(char**)ptr = (char*)SSPOPPTR; |
633 | break; |
79072805 |
634 | case SAVEt_HPTR: /* HV* reference */ |
635 | ptr = SSPOPPTR; |
636 | *(HV**)ptr = (HV*)SSPOPPTR; |
637 | break; |
638 | case SAVEt_APTR: /* AV* reference */ |
639 | ptr = SSPOPPTR; |
640 | *(AV**)ptr = (AV*)SSPOPPTR; |
641 | break; |
642 | case SAVEt_NSTAB: |
643 | gv = (GV*)SSPOPPTR; |
1f96a9ed |
644 | (void)sv_clear((SV*)gv); |
79072805 |
645 | break; |
fb73857a |
646 | case SAVEt_GP: /* scalar reference */ |
79072805 |
647 | ptr = SSPOPPTR; |
648 | gv = (GV*)SSPOPPTR; |
fb73857a |
649 | if (SvPOK(gv) && SvLEN(gv) > 0) { |
650 | Safefree(SvPVX(gv)); |
651 | } |
652 | SvPVX(gv) = (char *)SSPOPPTR; |
653 | SvCUR(gv) = (STRLEN)SSPOPIV; |
654 | SvLEN(gv) = (STRLEN)SSPOPIV; |
f46d017c |
655 | gp_free(gv); |
656 | GvGP(gv) = (GP*)ptr; |
4633a7c4 |
657 | SvREFCNT_dec(gv); |
79072805 |
658 | break; |
8990e307 |
659 | case SAVEt_FREESV: |
660 | ptr = SSPOPPTR; |
661 | SvREFCNT_dec((SV*)ptr); |
662 | break; |
663 | case SAVEt_FREEOP: |
664 | ptr = SSPOPPTR; |
46fc3d4c |
665 | if (comppad) |
666 | curpad = AvARRAY(comppad); |
8990e307 |
667 | op_free((OP*)ptr); |
668 | break; |
669 | case SAVEt_FREEPV: |
670 | ptr = SSPOPPTR; |
671 | Safefree((char*)ptr); |
672 | break; |
673 | case SAVEt_CLEARSV: |
4aa0a1f7 |
674 | ptr = (void*)&curpad[SSPOPLONG]; |
8990e307 |
675 | sv = *(SV**)ptr; |
bc44cdaf |
676 | /* Can clear pad variable in place? */ |
677 | if (SvREFCNT(sv) <= 1 && !SvOBJECT(sv)) { |
8990e307 |
678 | if (SvTHINKFIRST(sv)) { |
679 | if (SvREADONLY(sv)) |
680 | croak("panic: leave_scope clearsv"); |
681 | if (SvROK(sv)) |
682 | sv_unref(sv); |
683 | } |
a0d0e21e |
684 | if (SvMAGICAL(sv)) |
685 | mg_free(sv); |
8990e307 |
686 | |
687 | switch (SvTYPE(sv)) { |
688 | case SVt_NULL: |
689 | break; |
690 | case SVt_PVAV: |
44a8e56a |
691 | av_clear((AV*)sv); |
8990e307 |
692 | break; |
693 | case SVt_PVHV: |
44a8e56a |
694 | hv_clear((HV*)sv); |
8990e307 |
695 | break; |
696 | case SVt_PVCV: |
5377b701 |
697 | croak("panic: leave_scope pad code"); |
698 | case SVt_RV: |
699 | case SVt_IV: |
700 | case SVt_NV: |
701 | (void)SvOK_off(sv); |
8990e307 |
702 | break; |
703 | default: |
a0d0e21e |
704 | (void)SvOK_off(sv); |
5377b701 |
705 | (void)SvOOK_off(sv); |
8990e307 |
706 | break; |
707 | } |
708 | } |
709 | else { /* Someone has a claim on this, so abandon it. */ |
4aa0a1f7 |
710 | U32 padflags = SvFLAGS(sv) & (SVs_PADBUSY|SVs_PADMY|SVs_PADTMP); |
8990e307 |
711 | switch (SvTYPE(sv)) { /* Console ourselves with a new value */ |
712 | case SVt_PVAV: *(SV**)ptr = (SV*)newAV(); break; |
713 | case SVt_PVHV: *(SV**)ptr = (SV*)newHV(); break; |
714 | default: *(SV**)ptr = NEWSV(0,0); break; |
715 | } |
53868620 |
716 | SvREFCNT_dec(sv); /* Cast current value to the winds. */ |
4aa0a1f7 |
717 | SvFLAGS(*(SV**)ptr) |= padflags; /* preserve pad nature */ |
8990e307 |
718 | } |
719 | break; |
720 | case SAVEt_DELETE: |
721 | ptr = SSPOPPTR; |
722 | hv = (HV*)ptr; |
723 | ptr = SSPOPPTR; |
748a9306 |
724 | (void)hv_delete(hv, (char*)ptr, (U32)SSPOPINT, G_DISCARD); |
4e4c362e |
725 | SvREFCNT_dec(hv); |
adbc6bb1 |
726 | Safefree(ptr); |
8990e307 |
727 | break; |
a0d0e21e |
728 | case SAVEt_DESTRUCTOR: |
729 | ptr = SSPOPPTR; |
730 | (*SSPOPDPTR)(ptr); |
731 | break; |
732 | case SAVEt_REGCONTEXT: |
161b7d16 |
733 | i = SSPOPINT; |
734 | savestack_ix -= i; /* regexp must have croaked */ |
a0d0e21e |
735 | break; |
55497cff |
736 | case SAVEt_STACK_POS: /* Position on Perl stack */ |
161b7d16 |
737 | i = SSPOPINT; |
738 | stack_sp = stack_base + i; |
55497cff |
739 | break; |
161b7d16 |
740 | case SAVEt_AELEM: /* array element */ |
741 | value = (SV*)SSPOPPTR; |
742 | i = SSPOPINT; |
743 | av = (AV*)SSPOPPTR; |
744 | ptr = av_fetch(av,i,1); |
4e4c362e |
745 | if (ptr) { |
746 | sv = *(SV**)ptr; |
747 | if (sv && sv != &sv_undef) { |
748 | if (SvRMAGICAL(av) && mg_find((SV*)av, 'P')) |
749 | (void)SvREFCNT_inc(sv); |
750 | SvREFCNT_dec(av); |
751 | goto restore_sv; |
752 | } |
753 | } |
754 | SvREFCNT_dec(av); |
755 | SvREFCNT_dec(value); |
756 | break; |
161b7d16 |
757 | case SAVEt_HELEM: /* hash element */ |
758 | value = (SV*)SSPOPPTR; |
9002cb76 |
759 | sv = (SV*)SSPOPPTR; |
161b7d16 |
760 | hv = (HV*)SSPOPPTR; |
761 | ptr = hv_fetch_ent(hv, sv, 1, 0); |
4e4c362e |
762 | if (ptr) { |
763 | SV *oval = HeVAL((HE*)ptr); |
764 | if (oval && oval != &sv_undef) { |
765 | ptr = &HeVAL((HE*)ptr); |
766 | if (SvRMAGICAL(hv) && mg_find((SV*)hv, 'P')) |
767 | (void)SvREFCNT_inc(*(SV**)ptr); |
768 | SvREFCNT_dec(hv); |
769 | SvREFCNT_dec(sv); |
770 | goto restore_sv; |
771 | } |
772 | } |
773 | SvREFCNT_dec(hv); |
774 | SvREFCNT_dec(sv); |
775 | SvREFCNT_dec(value); |
776 | break; |
462e5cf6 |
777 | case SAVEt_OP: |
778 | op = (OP*)SSPOPPTR; |
779 | break; |
79072805 |
780 | default: |
463ee0b2 |
781 | croak("panic: leave_scope inconsistency"); |
79072805 |
782 | } |
783 | } |
784 | } |
8990e307 |
785 | |
786 | #ifdef DEBUGGING |
1f96a9ed |
787 | |
8990e307 |
788 | void |
c09156bb |
789 | cx_dump(PERL_CONTEXT *cx) |
8990e307 |
790 | { |
11343788 |
791 | dTHR; |
fb73857a |
792 | PerlIO_printf(Perl_debug_log, "CX %ld = %s\n", (long)(cx - cxstack), block_type[cx->cx_type]); |
8990e307 |
793 | if (cx->cx_type != CXt_SUBST) { |
760ac839 |
794 | PerlIO_printf(Perl_debug_log, "BLK_OLDSP = %ld\n", (long)cx->blk_oldsp); |
795 | PerlIO_printf(Perl_debug_log, "BLK_OLDCOP = 0x%lx\n", (long)cx->blk_oldcop); |
796 | PerlIO_printf(Perl_debug_log, "BLK_OLDMARKSP = %ld\n", (long)cx->blk_oldmarksp); |
797 | PerlIO_printf(Perl_debug_log, "BLK_OLDSCOPESP = %ld\n", (long)cx->blk_oldscopesp); |
798 | PerlIO_printf(Perl_debug_log, "BLK_OLDRETSP = %ld\n", (long)cx->blk_oldretsp); |
799 | PerlIO_printf(Perl_debug_log, "BLK_OLDPM = 0x%lx\n", (long)cx->blk_oldpm); |
800 | PerlIO_printf(Perl_debug_log, "BLK_GIMME = %s\n", cx->blk_gimme ? "LIST" : "SCALAR"); |
8990e307 |
801 | } |
802 | switch (cx->cx_type) { |
803 | case CXt_NULL: |
804 | case CXt_BLOCK: |
805 | break; |
806 | case CXt_SUB: |
760ac839 |
807 | PerlIO_printf(Perl_debug_log, "BLK_SUB.CV = 0x%lx\n", |
8990e307 |
808 | (long)cx->blk_sub.cv); |
760ac839 |
809 | PerlIO_printf(Perl_debug_log, "BLK_SUB.GV = 0x%lx\n", |
8990e307 |
810 | (long)cx->blk_sub.gv); |
760ac839 |
811 | PerlIO_printf(Perl_debug_log, "BLK_SUB.DFOUTGV = 0x%lx\n", |
8990e307 |
812 | (long)cx->blk_sub.dfoutgv); |
760ac839 |
813 | PerlIO_printf(Perl_debug_log, "BLK_SUB.OLDDEPTH = %ld\n", |
8990e307 |
814 | (long)cx->blk_sub.olddepth); |
760ac839 |
815 | PerlIO_printf(Perl_debug_log, "BLK_SUB.HASARGS = %d\n", |
8990e307 |
816 | (int)cx->blk_sub.hasargs); |
817 | break; |
818 | case CXt_EVAL: |
760ac839 |
819 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_IN_EVAL = %ld\n", |
8990e307 |
820 | (long)cx->blk_eval.old_in_eval); |
760ac839 |
821 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_OP_TYPE = %s (%s)\n", |
c07a80fd |
822 | op_name[cx->blk_eval.old_op_type], |
823 | op_desc[cx->blk_eval.old_op_type]); |
760ac839 |
824 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_NAME = %s\n", |
8990e307 |
825 | cx->blk_eval.old_name); |
760ac839 |
826 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_EVAL_ROOT = 0x%lx\n", |
8990e307 |
827 | (long)cx->blk_eval.old_eval_root); |
828 | break; |
829 | |
830 | case CXt_LOOP: |
760ac839 |
831 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.LABEL = %s\n", |
8990e307 |
832 | cx->blk_loop.label); |
760ac839 |
833 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.RESETSP = %ld\n", |
8990e307 |
834 | (long)cx->blk_loop.resetsp); |
760ac839 |
835 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.REDO_OP = 0x%lx\n", |
8990e307 |
836 | (long)cx->blk_loop.redo_op); |
760ac839 |
837 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.NEXT_OP = 0x%lx\n", |
8990e307 |
838 | (long)cx->blk_loop.next_op); |
760ac839 |
839 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.LAST_OP = 0x%lx\n", |
8990e307 |
840 | (long)cx->blk_loop.last_op); |
760ac839 |
841 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERIX = %ld\n", |
8990e307 |
842 | (long)cx->blk_loop.iterix); |
760ac839 |
843 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERARY = 0x%lx\n", |
8990e307 |
844 | (long)cx->blk_loop.iterary); |
760ac839 |
845 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERVAR = 0x%lx\n", |
8990e307 |
846 | (long)cx->blk_loop.itervar); |
847 | if (cx->blk_loop.itervar) |
760ac839 |
848 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERSAVE = 0x%lx\n", |
8990e307 |
849 | (long)cx->blk_loop.itersave); |
7a4c00b4 |
850 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERLVAL = 0x%lx\n", |
851 | (long)cx->blk_loop.iterlval); |
8990e307 |
852 | break; |
853 | |
854 | case CXt_SUBST: |
760ac839 |
855 | PerlIO_printf(Perl_debug_log, "SB_ITERS = %ld\n", |
8990e307 |
856 | (long)cx->sb_iters); |
760ac839 |
857 | PerlIO_printf(Perl_debug_log, "SB_MAXITERS = %ld\n", |
8990e307 |
858 | (long)cx->sb_maxiters); |
760ac839 |
859 | PerlIO_printf(Perl_debug_log, "SB_SAFEBASE = %ld\n", |
8990e307 |
860 | (long)cx->sb_safebase); |
760ac839 |
861 | PerlIO_printf(Perl_debug_log, "SB_ONCE = %ld\n", |
8990e307 |
862 | (long)cx->sb_once); |
760ac839 |
863 | PerlIO_printf(Perl_debug_log, "SB_ORIG = %s\n", |
8990e307 |
864 | cx->sb_orig); |
760ac839 |
865 | PerlIO_printf(Perl_debug_log, "SB_DSTR = 0x%lx\n", |
8990e307 |
866 | (long)cx->sb_dstr); |
760ac839 |
867 | PerlIO_printf(Perl_debug_log, "SB_TARG = 0x%lx\n", |
8990e307 |
868 | (long)cx->sb_targ); |
760ac839 |
869 | PerlIO_printf(Perl_debug_log, "SB_S = 0x%lx\n", |
8990e307 |
870 | (long)cx->sb_s); |
760ac839 |
871 | PerlIO_printf(Perl_debug_log, "SB_M = 0x%lx\n", |
8990e307 |
872 | (long)cx->sb_m); |
760ac839 |
873 | PerlIO_printf(Perl_debug_log, "SB_STREND = 0x%lx\n", |
8990e307 |
874 | (long)cx->sb_strend); |
c90c0ff4 |
875 | PerlIO_printf(Perl_debug_log, "SB_RXRES = 0x%lx\n", |
876 | (long)cx->sb_rxres); |
8990e307 |
877 | break; |
878 | } |
879 | } |
880 | #endif |