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a0d0e21e 1/* scope.c
79072805 2 *
4bb101f2 3 * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
54ca4ee7 4 * 2000, 2001, 2002, 2003, 2004, 2005, 2006, by Larry Wall and others
79072805
LW
5 *
6 * You may distribute under the terms of either the GNU General Public
7 * License or the Artistic License, as specified in the README file.
8 *
a0d0e21e
LW
9 */
10
11/*
12 * "For the fashion of Minas Tirith was such that it was built on seven
13 * levels..."
79072805
LW
14 */
15
ddfa107c 16/* This file contains functions to manipulate several of Perl's stacks;
166f8a29
DM
17 * in particular it contains code to push various types of things onto
18 * the savestack, then to pop them off and perform the correct restorative
19 * action for each one. This corresponds to the cleanup Perl does at
20 * each scope exit.
21 */
22
79072805 23#include "EXTERN.h"
864dbfa3 24#define PERL_IN_SCOPE_C
79072805
LW
25#include "perl.h"
26
a0d0e21e 27SV**
864dbfa3 28Perl_stack_grow(pTHX_ SV **sp, SV **p, int n)
a0d0e21e 29{
97aff369 30 dVAR;
3280af22 31 PL_stack_sp = sp;
2ce36478 32#ifndef STRESS_REALLOC
3280af22 33 av_extend(PL_curstack, (p - PL_stack_base) + (n) + 128);
2ce36478 34#else
6b88bc9c 35 av_extend(PL_curstack, (p - PL_stack_base) + (n) + 1);
2ce36478 36#endif
3280af22 37 return PL_stack_sp;
a0d0e21e
LW
38}
39
2ce36478
SM
40#ifndef STRESS_REALLOC
41#define GROW(old) ((old) * 3 / 2)
42#else
43#define GROW(old) ((old) + 1)
44#endif
45
e336de0d 46PERL_SI *
864dbfa3 47Perl_new_stackinfo(pTHX_ I32 stitems, I32 cxitems)
e336de0d 48{
97aff369 49 dVAR;
e336de0d 50 PERL_SI *si;
a02a5408 51 Newx(si, 1, PERL_SI);
e336de0d
GS
52 si->si_stack = newAV();
53 AvREAL_off(si->si_stack);
54 av_extend(si->si_stack, stitems > 0 ? stitems-1 : 0);
3280af22 55 AvALLOC(si->si_stack)[0] = &PL_sv_undef;
e336de0d
GS
56 AvFILLp(si->si_stack) = 0;
57 si->si_prev = 0;
58 si->si_next = 0;
59 si->si_cxmax = cxitems - 1;
60 si->si_cxix = -1;
e788e7d3 61 si->si_type = PERLSI_UNDEF;
a02a5408 62 Newx(si->si_cxstack, cxitems, PERL_CONTEXT);
9965345d
JH
63 /* Without any kind of initialising PUSHSUBST()
64 * in pp_subst() will read uninitialised heap. */
7e337ee0 65 PoisonNew(si->si_cxstack, cxitems, PERL_CONTEXT);
e336de0d
GS
66 return si;
67}
68
79072805 69I32
864dbfa3 70Perl_cxinc(pTHX)
79072805 71{
97aff369 72 dVAR;
a3b680e6 73 const IV old_max = cxstack_max;
2ce36478 74 cxstack_max = GROW(cxstack_max);
c09156bb 75 Renew(cxstack, cxstack_max + 1, PERL_CONTEXT); /* XXX should fix CXINC macro */
9965345d
JH
76 /* Without any kind of initialising deep enough recursion
77 * will end up reading uninitialised PERL_CONTEXTs. */
7e337ee0 78 PoisonNew(cxstack + old_max + 1, cxstack_max - old_max, PERL_CONTEXT);
79072805
LW
79 return cxstack_ix + 1;
80}
81
79072805 82void
864dbfa3 83Perl_push_scope(pTHX)
79072805 84{
97aff369 85 dVAR;
3280af22
NIS
86 if (PL_scopestack_ix == PL_scopestack_max) {
87 PL_scopestack_max = GROW(PL_scopestack_max);
88 Renew(PL_scopestack, PL_scopestack_max, I32);
79072805 89 }
3280af22 90 PL_scopestack[PL_scopestack_ix++] = PL_savestack_ix;
79072805
LW
91
92}
93
94void
864dbfa3 95Perl_pop_scope(pTHX)
79072805 96{
97aff369 97 dVAR;
35a4481c 98 const I32 oldsave = PL_scopestack[--PL_scopestack_ix];
8990e307 99 LEAVE_SCOPE(oldsave);
79072805
LW
100}
101
102void
864dbfa3 103Perl_markstack_grow(pTHX)
a0d0e21e 104{
97aff369 105 dVAR;
35a4481c
AL
106 const I32 oldmax = PL_markstack_max - PL_markstack;
107 const I32 newmax = GROW(oldmax);
a0d0e21e 108
3280af22
NIS
109 Renew(PL_markstack, newmax, I32);
110 PL_markstack_ptr = PL_markstack + oldmax;
111 PL_markstack_max = PL_markstack + newmax;
a0d0e21e
LW
112}
113
114void
864dbfa3 115Perl_savestack_grow(pTHX)
79072805 116{
97aff369 117 dVAR;
8aacddc1 118 PL_savestack_max = GROW(PL_savestack_max) + 4;
3280af22 119 Renew(PL_savestack, PL_savestack_max, ANY);
79072805
LW
120}
121
4b3c1a47
AE
122void
123Perl_savestack_grow_cnt(pTHX_ I32 need)
124{
97aff369 125 dVAR;
4b3c1a47
AE
126 PL_savestack_max = PL_savestack_ix + need;
127 Renew(PL_savestack, PL_savestack_max, ANY);
128}
129
2ce36478
SM
130#undef GROW
131
79072805 132void
864dbfa3 133Perl_tmps_grow(pTHX_ I32 n)
677b06e3 134{
97aff369 135 dVAR;
677b06e3
GS
136#ifndef STRESS_REALLOC
137 if (n < 128)
138 n = (PL_tmps_max < 512) ? 128 : 512;
139#endif
140 PL_tmps_max = PL_tmps_ix + n + 1;
141 Renew(PL_tmps_stack, PL_tmps_max, SV*);
142}
143
144
145void
864dbfa3 146Perl_free_tmps(pTHX)
79072805 147{
97aff369 148 dVAR;
79072805 149 /* XXX should tmps_floor live in cxstack? */
35a4481c 150 const I32 myfloor = PL_tmps_floor;
3280af22 151 while (PL_tmps_ix > myfloor) { /* clean up after last statement */
901017d6 152 SV* const sv = PL_tmps_stack[PL_tmps_ix];
a0714e2c 153 PL_tmps_stack[PL_tmps_ix--] = NULL;
8aacddc1 154 if (sv && sv != &PL_sv_undef) {
463ee0b2 155 SvTEMP_off(sv);
8990e307 156 SvREFCNT_dec(sv); /* note, can modify tmps_ix!!! */
463ee0b2 157 }
79072805
LW
158 }
159}
160
76e3520e 161STATIC SV *
cea2e8a9 162S_save_scalar_at(pTHX_ SV **sptr)
79072805 163{
97aff369 164 dVAR;
901017d6 165 SV * const osv = *sptr;
561b68a9 166 register SV * const sv = *sptr = newSV(0);
79072805 167
81d86705 168#ifdef PERL_MAD
49e9cc5f 169 /* FIXME for MAD - this is causing ext/Safe/t/safeops.t to abort. */
81d86705
NC
170 if (PL_formfeed && sv == PL_formfeed)
171 abort();
172#endif
173
a0d0e21e 174 if (SvTYPE(osv) >= SVt_PVMG && SvMAGIC(osv) && SvTYPE(osv) != SVt_PVGV) {
a0d0e21e 175 if (SvGMAGICAL(osv)) {
35a4481c 176 const bool oldtainted = PL_tainted;
a0d0e21e 177 SvFLAGS(osv) |= (SvFLAGS(osv) &
c268c2a6 178 (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT;
3280af22 179 PL_tainted = oldtainted;
a0d0e21e 180 }
0cbee0a4 181 mg_localize(osv, sv);
79072805
LW
182 }
183 return sv;
184}
185
7a4c00b4 186SV *
864dbfa3 187Perl_save_scalar(pTHX_ GV *gv)
7a4c00b4 188{
97aff369 189 dVAR;
fb4fc1fa 190 SV ** const sptr = &GvSVn(gv);
81d86705
NC
191#ifdef PERL_MAD
192 if (PL_formfeed && *sptr == PL_formfeed)
193 abort();
194#endif
27cc343c 195 PL_localizing = 1;
0cbee0a4 196 SvGETMAGIC(*sptr);
27cc343c 197 PL_localizing = 0;
7a4c00b4 198 SSCHECK(3);
b37c2d43 199 SSPUSHPTR(SvREFCNT_inc_simple(gv));
4e4c362e 200 SSPUSHPTR(SvREFCNT_inc(*sptr));
7a4c00b4 201 SSPUSHINT(SAVEt_SV);
4e4c362e 202 return save_scalar_at(sptr);
7a4c00b4
PP
203}
204
f4dd75d9 205/* Like save_sptr(), but also SvREFCNT_dec()s the new value. Can be used to
b9d12d37
GS
206 * restore a global SV to its prior contents, freeing new value. */
207void
864dbfa3 208Perl_save_generic_svref(pTHX_ SV **sptr)
b9d12d37 209{
97aff369 210 dVAR;
81d86705
NC
211#ifdef PERL_MAD
212 if (PL_formfeed && *sptr == PL_formfeed)
213 abort();
214#endif
b9d12d37
GS
215 SSCHECK(3);
216 SSPUSHPTR(sptr);
217 SSPUSHPTR(SvREFCNT_inc(*sptr));
218 SSPUSHINT(SAVEt_GENERIC_SVREF);
219}
220
f4dd75d9
GS
221/* Like save_pptr(), but also Safefree()s the new value if it is different
222 * from the old one. Can be used to restore a global char* to its prior
223 * contents, freeing new value. */
224void
225Perl_save_generic_pvref(pTHX_ char **str)
226{
97aff369 227 dVAR;
f4dd75d9 228 SSCHECK(3);
f4dd75d9 229 SSPUSHPTR(*str);
b03d03b0 230 SSPUSHPTR(str);
f4dd75d9
GS
231 SSPUSHINT(SAVEt_GENERIC_PVREF);
232}
233
05ec9bb3
NIS
234/* Like save_generic_pvref(), but uses PerlMemShared_free() rather than Safefree().
235 * Can be used to restore a shared global char* to its prior
236 * contents, freeing new value. */
237void
238Perl_save_shared_pvref(pTHX_ char **str)
239{
97aff369 240 dVAR;
05ec9bb3
NIS
241 SSCHECK(3);
242 SSPUSHPTR(str);
243 SSPUSHPTR(*str);
244 SSPUSHINT(SAVEt_SHARED_PVREF);
245}
246
14f338dc
DM
247/* set the SvFLAGS specified by mask to the values in val */
248
249void
250Perl_save_set_svflags(pTHX_ SV* sv, U32 mask, U32 val)
251{
97aff369 252 dVAR;
14f338dc
DM
253 SSCHECK(4);
254 SSPUSHPTR(sv);
255 SSPUSHINT(mask);
256 SSPUSHINT(val);
257 SSPUSHINT(SAVEt_SET_SVFLAGS);
258}
259
79072805 260void
864dbfa3 261Perl_save_gp(pTHX_ GV *gv, I32 empty)
79072805 262{
97aff369 263 dVAR;
576df6af 264 SSGROW(3);
4633a7c4 265 SSPUSHPTR(SvREFCNT_inc(gv));
5f05dabc 266 SSPUSHPTR(GvGP(gv));
79072805
LW
267 SSPUSHINT(SAVEt_GP);
268
5f05dabc 269 if (empty) {
12816592 270 GP *gp = Perl_newGP(aTHX_ gv);
146174a9 271
fae75791 272 if (GvCVu(gv))
3280af22 273 PL_sub_generation++; /* taking a method out of circulation */
146174a9
CB
274 if (GvIOp(gv) && (IoFLAGS(GvIOp(gv)) & IOf_ARGV)) {
275 gp->gp_io = newIO();
276 IoFLAGS(gp->gp_io) |= IOf_ARGV|IOf_START;
277 }
12816592 278 GvGP(gv) = gp;
5f05dabc
PP
279 }
280 else {
44a8e56a 281 gp_ref(GvGP(gv));
5f05dabc
PP
282 GvINTRO_on(gv);
283 }
79072805 284}
79072805 285
79072805 286AV *
864dbfa3 287Perl_save_ary(pTHX_ GV *gv)
79072805 288{
97aff369 289 dVAR;
901017d6 290 AV * const oav = GvAVn(gv);
67a38de0 291 AV *av;
fb73857a 292
67a38de0
NIS
293 if (!AvREAL(oav) && AvREIFY(oav))
294 av_reify(oav);
79072805
LW
295 SSCHECK(3);
296 SSPUSHPTR(gv);
67a38de0 297 SSPUSHPTR(oav);
79072805
LW
298 SSPUSHINT(SAVEt_AV);
299
4608196e 300 GvAV(gv) = NULL;
fb73857a 301 av = GvAVn(gv);
0cbee0a4
DM
302 if (SvMAGIC(oav))
303 mg_localize((SV*)oav, (SV*)av);
fb73857a 304 return av;
79072805
LW
305}
306
307HV *
864dbfa3 308Perl_save_hash(pTHX_ GV *gv)
79072805 309{
97aff369 310 dVAR;
fb73857a
PP
311 HV *ohv, *hv;
312
79072805
LW
313 SSCHECK(3);
314 SSPUSHPTR(gv);
fb73857a 315 SSPUSHPTR(ohv = GvHVn(gv));
79072805
LW
316 SSPUSHINT(SAVEt_HV);
317
4608196e 318 GvHV(gv) = NULL;
fb73857a 319 hv = GvHVn(gv);
0cbee0a4
DM
320 if (SvMAGIC(ohv))
321 mg_localize((SV*)ohv, (SV*)hv);
fb73857a 322 return hv;
79072805
LW
323}
324
325void
864dbfa3 326Perl_save_item(pTHX_ register SV *item)
79072805 327{
97aff369 328 dVAR;
901017d6 329 register SV * const sv = newSVsv(item);
79072805 330
81d86705
NC
331#ifdef PERL_MAD
332 if (PL_formfeed && item == PL_formfeed)
333 abort();
334#endif
335
79072805
LW
336 SSCHECK(3);
337 SSPUSHPTR(item); /* remember the pointer */
79072805
LW
338 SSPUSHPTR(sv); /* remember the value */
339 SSPUSHINT(SAVEt_ITEM);
340}
341
342void
864dbfa3 343Perl_save_int(pTHX_ int *intp)
79072805 344{
97aff369 345 dVAR;
79072805
LW
346 SSCHECK(3);
347 SSPUSHINT(*intp);
348 SSPUSHPTR(intp);
349 SSPUSHINT(SAVEt_INT);
350}
351
352void
9febdf04
RH
353Perl_save_bool(pTHX_ bool *boolp)
354{
97aff369 355 dVAR;
9febdf04
RH
356 SSCHECK(3);
357 SSPUSHBOOL(*boolp);
358 SSPUSHPTR(boolp);
359 SSPUSHINT(SAVEt_BOOL);
360}
361
362void
864dbfa3 363Perl_save_I32(pTHX_ I32 *intp)
79072805 364{
97aff369 365 dVAR;
79072805
LW
366 SSCHECK(3);
367 SSPUSHINT(*intp);
368 SSPUSHPTR(intp);
369 SSPUSHINT(SAVEt_I32);
370}
371
85e6fe83
LW
372/* Cannot use save_sptr() to store a char* since the SV** cast will
373 * force word-alignment and we'll miss the pointer.
374 */
375void
864dbfa3 376Perl_save_pptr(pTHX_ char **pptr)
85e6fe83 377{
97aff369 378 dVAR;
85e6fe83
LW
379 SSCHECK(3);
380 SSPUSHPTR(*pptr);
381 SSPUSHPTR(pptr);
382 SSPUSHINT(SAVEt_PPTR);
383}
384
79072805 385void
146174a9
CB
386Perl_save_vptr(pTHX_ void *ptr)
387{
97aff369 388 dVAR;
146174a9
CB
389 SSCHECK(3);
390 SSPUSHPTR(*(char**)ptr);
391 SSPUSHPTR(ptr);
392 SSPUSHINT(SAVEt_VPTR);
393}
394
395void
864dbfa3 396Perl_save_sptr(pTHX_ SV **sptr)
79072805 397{
97aff369 398 dVAR;
79072805
LW
399 SSCHECK(3);
400 SSPUSHPTR(*sptr);
401 SSPUSHPTR(sptr);
402 SSPUSHINT(SAVEt_SPTR);
403}
404
c3564e5c
GS
405void
406Perl_save_padsv(pTHX_ PADOFFSET off)
407{
97aff369 408 dVAR;
c3564e5c 409 SSCHECK(4);
f3548bdc 410 ASSERT_CURPAD_ACTIVE("save_padsv");
c3564e5c 411 SSPUSHPTR(PL_curpad[off]);
f3548bdc 412 SSPUSHPTR(PL_comppad);
c3564e5c
GS
413 SSPUSHLONG((long)off);
414 SSPUSHINT(SAVEt_PADSV);
415}
416
79072805 417void
864dbfa3 418Perl_save_hptr(pTHX_ HV **hptr)
79072805 419{
97aff369 420 dVAR;
79072805 421 SSCHECK(3);
85e6fe83 422 SSPUSHPTR(*hptr);
79072805
LW
423 SSPUSHPTR(hptr);
424 SSPUSHINT(SAVEt_HPTR);
425}
426
427void
864dbfa3 428Perl_save_aptr(pTHX_ AV **aptr)
79072805 429{
97aff369 430 dVAR;
79072805 431 SSCHECK(3);
85e6fe83 432 SSPUSHPTR(*aptr);
79072805
LW
433 SSPUSHPTR(aptr);
434 SSPUSHINT(SAVEt_APTR);
435}
436
437void
864dbfa3 438Perl_save_freesv(pTHX_ SV *sv)
8990e307 439{
97aff369 440 dVAR;
8990e307
LW
441 SSCHECK(2);
442 SSPUSHPTR(sv);
443 SSPUSHINT(SAVEt_FREESV);
444}
445
446void
26d9b02f
JH
447Perl_save_mortalizesv(pTHX_ SV *sv)
448{
97aff369 449 dVAR;
26d9b02f
JH
450 SSCHECK(2);
451 SSPUSHPTR(sv);
452 SSPUSHINT(SAVEt_MORTALIZESV);
453}
454
455void
864dbfa3 456Perl_save_freeop(pTHX_ OP *o)
8990e307 457{
97aff369 458 dVAR;
8990e307 459 SSCHECK(2);
11343788 460 SSPUSHPTR(o);
8990e307
LW
461 SSPUSHINT(SAVEt_FREEOP);
462}
463
464void
864dbfa3 465Perl_save_freepv(pTHX_ char *pv)
8990e307 466{
97aff369 467 dVAR;
8990e307
LW
468 SSCHECK(2);
469 SSPUSHPTR(pv);
470 SSPUSHINT(SAVEt_FREEPV);
471}
472
473void
864dbfa3 474Perl_save_clearsv(pTHX_ SV **svp)
8990e307 475{
97aff369 476 dVAR;
f3548bdc 477 ASSERT_CURPAD_ACTIVE("save_clearsv");
8990e307 478 SSCHECK(2);
3280af22 479 SSPUSHLONG((long)(svp-PL_curpad));
8990e307 480 SSPUSHINT(SAVEt_CLEARSV);
d9d18af6 481 SvPADSTALE_off(*svp); /* mark lexical as active */
8990e307
LW
482}
483
484void
864dbfa3 485Perl_save_delete(pTHX_ HV *hv, char *key, I32 klen)
8990e307 486{
97aff369 487 dVAR;
8990e307
LW
488 SSCHECK(4);
489 SSPUSHINT(klen);
490 SSPUSHPTR(key);
b37c2d43 491 SSPUSHPTR(SvREFCNT_inc_simple(hv));
8990e307
LW
492 SSPUSHINT(SAVEt_DELETE);
493}
494
495void
146174a9
CB
496Perl_save_destructor_x(pTHX_ DESTRUCTORFUNC_t f, void* p)
497{
97aff369 498 dVAR;
146174a9
CB
499 SSCHECK(3);
500 SSPUSHDXPTR(f);
501 SSPUSHPTR(p);
502 SSPUSHINT(SAVEt_DESTRUCTOR_X);
503}
504
505void
59413342 506Perl_save_aelem(pTHX_ AV *av, I32 idx, SV **sptr)
4e4c362e 507{
97aff369 508 dVAR;
bfc4de9f 509 SV *sv;
0cbee0a4 510 SvGETMAGIC(*sptr);
4e4c362e 511 SSCHECK(4);
b37c2d43 512 SSPUSHPTR(SvREFCNT_inc_simple(av));
4e4c362e
GS
513 SSPUSHINT(idx);
514 SSPUSHPTR(SvREFCNT_inc(*sptr));
515 SSPUSHINT(SAVEt_AELEM);
5dd42e15
DM
516 /* if it gets reified later, the restore will have the wrong refcnt */
517 if (!AvREAL(av) && AvREIFY(av))
b37c2d43 518 SvREFCNT_inc_void(*sptr);
4e4c362e 519 save_scalar_at(sptr);
bfc4de9f
DM
520 sv = *sptr;
521 /* If we're localizing a tied array element, this new sv
522 * won't actually be stored in the array - so it won't get
523 * reaped when the localize ends. Ensure it gets reaped by
524 * mortifying it instead. DAPM */
525 if (SvTIED_mg(sv, PERL_MAGIC_tiedelem))
526 sv_2mortal(sv);
4e4c362e
GS
527}
528
529void
e1ec3a88 530Perl_save_helem(pTHX_ HV *hv, SV *key, SV **sptr)
4e4c362e 531{
97aff369 532 dVAR;
bfc4de9f 533 SV *sv;
0cbee0a4 534 SvGETMAGIC(*sptr);
4e4c362e 535 SSCHECK(4);
b37c2d43
AL
536 SSPUSHPTR(SvREFCNT_inc_simple(hv));
537 SSPUSHPTR(SvREFCNT_inc_simple(key));
4e4c362e
GS
538 SSPUSHPTR(SvREFCNT_inc(*sptr));
539 SSPUSHINT(SAVEt_HELEM);
540 save_scalar_at(sptr);
bfc4de9f
DM
541 sv = *sptr;
542 /* If we're localizing a tied hash element, this new sv
543 * won't actually be stored in the hash - so it won't get
544 * reaped when the localize ends. Ensure it gets reaped by
545 * mortifying it instead. DAPM */
546 if (SvTIED_mg(sv, PERL_MAGIC_tiedelem))
547 sv_2mortal(sv);
4e4c362e
GS
548}
549
2053acbf
NC
550SV*
551Perl_save_svref(pTHX_ SV **sptr)
552{
553 dVAR;
81d86705
NC
554#ifdef PERL_MAD
555 if (PL_formfeed && *sptr == PL_formfeed)
556 abort();
557#endif
2053acbf
NC
558 SvGETMAGIC(*sptr);
559 SSCHECK(3);
560 SSPUSHPTR(sptr);
561 SSPUSHPTR(SvREFCNT_inc(*sptr));
562 SSPUSHINT(SAVEt_SVREF);
563 return save_scalar_at(sptr);
564}
565
4e4c362e 566void
864dbfa3 567Perl_save_op(pTHX)
462e5cf6 568{
97aff369 569 dVAR;
462e5cf6 570 SSCHECK(2);
533c011a 571 SSPUSHPTR(PL_op);
462e5cf6
MB
572 SSPUSHINT(SAVEt_OP);
573}
574
455ece5e 575I32
864dbfa3 576Perl_save_alloc(pTHX_ I32 size, I32 pad)
455ece5e 577{
97aff369 578 dVAR;
35a4481c 579 register const I32 start = pad + ((char*)&PL_savestack[PL_savestack_ix]
8aacddc1 580 - (char*)PL_savestack);
35a4481c 581 register const I32 elems = 1 + ((size + pad - 1) / sizeof(*PL_savestack));
455ece5e 582
1bb4c835 583 SSGROW(elems + 2);
455ece5e
AD
584
585 PL_savestack_ix += elems;
586 SSPUSHINT(elems);
587 SSPUSHINT(SAVEt_ALLOC);
588 return start;
589}
590
462e5cf6 591void
864dbfa3 592Perl_leave_scope(pTHX_ I32 base)
79072805 593{
97aff369 594 dVAR;
79072805
LW
595 register SV *sv;
596 register SV *value;
597 register GV *gv;
598 register AV *av;
599 register HV *hv;
20454177 600 void* ptr;
f4dd75d9 601 register char* str;
161b7d16 602 I32 i;
79072805
LW
603
604 if (base < -1)
cea2e8a9 605 Perl_croak(aTHX_ "panic: corrupt saved stack index");
3280af22 606 while (PL_savestack_ix > base) {
79072805
LW
607 switch (SSPOPINT) {
608 case SAVEt_ITEM: /* normal string */
609 value = (SV*)SSPOPPTR;
610 sv = (SV*)SSPOPPTR;
611 sv_replace(sv,value);
3280af22 612 PL_localizing = 2;
79072805 613 SvSETMAGIC(sv);
3280af22 614 PL_localizing = 0;
79072805 615 break;
8aacddc1 616 case SAVEt_SV: /* scalar reference */
79072805
LW
617 value = (SV*)SSPOPPTR;
618 gv = (GV*)SSPOPPTR;
7a4c00b4 619 ptr = &GvSV(gv);
5dd42e15 620 av = (AV*)gv; /* what to refcnt_dec */
2053acbf
NC
621 restore_sv:
622 sv = *(SV**)ptr;
623 DEBUG_S(PerlIO_printf(Perl_debug_log,
624 "restore svref: %p %p:%s -> %p:%s\n",
625 ptr, sv, SvPEEK(sv), value, SvPEEK(value)));
626 *(SV**)ptr = value;
627 SvREFCNT_dec(sv);
628 PL_localizing = 2;
629 SvSETMAGIC(value);
630 PL_localizing = 0;
631 SvREFCNT_dec(value);
632 if (av) /* actually an av, hv or gv */
633 SvREFCNT_dec(av);
634 break;
8aacddc1 635 case SAVEt_GENERIC_PVREF: /* generic pv */
f4dd75d9 636 ptr = SSPOPPTR;
b03d03b0 637 str = (char*)SSPOPPTR;
f4dd75d9
GS
638 if (*(char**)ptr != str) {
639 Safefree(*(char**)ptr);
640 *(char**)ptr = str;
641 }
642 break;
05ec9bb3
NIS
643 case SAVEt_SHARED_PVREF: /* shared pv */
644 str = (char*)SSPOPPTR;
645 ptr = SSPOPPTR;
646 if (*(char**)ptr != str) {
5e54c26f 647#ifdef NETWARE
9ecbcc42 648 PerlMem_free(*(char**)ptr);
5e54c26f 649#else
05ec9bb3 650 PerlMemShared_free(*(char**)ptr);
5e54c26f 651#endif
05ec9bb3
NIS
652 *(char**)ptr = str;
653 }
654 break;
8aacddc1 655 case SAVEt_GENERIC_SVREF: /* generic sv */
b9d12d37
GS
656 value = (SV*)SSPOPPTR;
657 ptr = SSPOPPTR;
f4dd75d9
GS
658 sv = *(SV**)ptr;
659 *(SV**)ptr = value;
660 SvREFCNT_dec(sv);
b9d12d37
GS
661 SvREFCNT_dec(value);
662 break;
8aacddc1 663 case SAVEt_AV: /* array reference */
79072805
LW
664 av = (AV*)SSPOPPTR;
665 gv = (GV*)SSPOPPTR;
fb73857a 666 if (GvAV(gv)) {
35a4481c 667 AV * const goner = GvAV(gv);
404a4710
NC
668 /* FIXME - this is a temporary hack until we work out what
669 the correct behaviour for magic should be. */
670 sv_unmagic((SV*)goner, PERL_MAGIC_arylen_p);
b162af07 671 SvMAGIC_set(av, SvMAGIC(goner));
32da55ab 672 SvFLAGS((SV*)av) |= SvMAGICAL(goner);
fb73857a 673 SvMAGICAL_off(goner);
b162af07 674 SvMAGIC_set(goner, NULL);
fb73857a
PP
675 SvREFCNT_dec(goner);
676 }
8aacddc1 677 GvAV(gv) = av;
fb73857a 678 if (SvMAGICAL(av)) {
3280af22 679 PL_localizing = 2;
fb73857a 680 SvSETMAGIC((SV*)av);
3280af22 681 PL_localizing = 0;
fb73857a 682 }
8aacddc1
NIS
683 break;
684 case SAVEt_HV: /* hash reference */
79072805
LW
685 hv = (HV*)SSPOPPTR;
686 gv = (GV*)SSPOPPTR;
fb73857a 687 if (GvHV(gv)) {
35a4481c 688 HV * const goner = GvHV(gv);
b162af07 689 SvMAGIC_set(hv, SvMAGIC(goner));
fb73857a
PP
690 SvFLAGS(hv) |= SvMAGICAL(goner);
691 SvMAGICAL_off(goner);
b162af07 692 SvMAGIC_set(goner, NULL);
fb73857a
PP
693 SvREFCNT_dec(goner);
694 }
8aacddc1 695 GvHV(gv) = hv;
fb73857a 696 if (SvMAGICAL(hv)) {
3280af22 697 PL_localizing = 2;
fb73857a 698 SvSETMAGIC((SV*)hv);
3280af22 699 PL_localizing = 0;
fb73857a 700 }
8aacddc1 701 break;
79072805
LW
702 case SAVEt_INT: /* int reference */
703 ptr = SSPOPPTR;
704 *(int*)ptr = (int)SSPOPINT;
705 break;
9febdf04
RH
706 case SAVEt_BOOL: /* bool reference */
707 ptr = SSPOPPTR;
708 *(bool*)ptr = (bool)SSPOPBOOL;
709 break;
79072805
LW
710 case SAVEt_I32: /* I32 reference */
711 ptr = SSPOPPTR;
712 *(I32*)ptr = (I32)SSPOPINT;
713 break;
714 case SAVEt_SPTR: /* SV* reference */
715 ptr = SSPOPPTR;
716 *(SV**)ptr = (SV*)SSPOPPTR;
717 break;
146174a9 718 case SAVEt_VPTR: /* random* reference */
85e6fe83
LW
719 case SAVEt_PPTR: /* char* reference */
720 ptr = SSPOPPTR;
721 *(char**)ptr = (char*)SSPOPPTR;
722 break;
79072805
LW
723 case SAVEt_HPTR: /* HV* reference */
724 ptr = SSPOPPTR;
725 *(HV**)ptr = (HV*)SSPOPPTR;
726 break;
727 case SAVEt_APTR: /* AV* reference */
728 ptr = SSPOPPTR;
729 *(AV**)ptr = (AV*)SSPOPPTR;
730 break;
fb73857a 731 case SAVEt_GP: /* scalar reference */
79072805
LW
732 ptr = SSPOPPTR;
733 gv = (GV*)SSPOPPTR;
8aacddc1
NIS
734 gp_free(gv);
735 GvGP(gv) = (GP*)ptr;
fae75791 736 if (GvCVu(gv))
3280af22 737 PL_sub_generation++; /* putting a method back into circulation */
4633a7c4 738 SvREFCNT_dec(gv);
8aacddc1 739 break;
8990e307
LW
740 case SAVEt_FREESV:
741 ptr = SSPOPPTR;
742 SvREFCNT_dec((SV*)ptr);
743 break;
26d9b02f
JH
744 case SAVEt_MORTALIZESV:
745 ptr = SSPOPPTR;
746 sv_2mortal((SV*)ptr);
747 break;
8990e307
LW
748 case SAVEt_FREEOP:
749 ptr = SSPOPPTR;
f3548bdc 750 ASSERT_CURPAD_LEGAL("SAVEt_FREEOP"); /* XXX DAPM tmp */
8990e307
LW
751 op_free((OP*)ptr);
752 break;
753 case SAVEt_FREEPV:
754 ptr = SSPOPPTR;
1df70142 755 Safefree(ptr);
8990e307
LW
756 break;
757 case SAVEt_CLEARSV:
3280af22 758 ptr = (void*)&PL_curpad[SSPOPLONG];
8990e307 759 sv = *(SV**)ptr;
dd2155a4
DM
760
761 DEBUG_Xv(PerlIO_printf(Perl_debug_log,
f3548bdc
DM
762 "Pad 0x%"UVxf"[0x%"UVxf"] clearsv: %ld sv=0x%"UVxf"<%"IVdf"> %s\n",
763 PTR2UV(PL_comppad), PTR2UV(PL_curpad),
764 (long)((SV **)ptr-PL_curpad), PTR2UV(sv), (IV)SvREFCNT(sv),
dd2155a4
DM
765 (SvREFCNT(sv) <= 1 && !SvOBJECT(sv)) ? "clear" : "abandon"
766 ));
767
bc44cdaf
GS
768 /* Can clear pad variable in place? */
769 if (SvREFCNT(sv) <= 1 && !SvOBJECT(sv)) {
8aacddc1
NIS
770 /*
771 * if a my variable that was made readonly is going out of
772 * scope, we want to remove the readonlyness so that it can
773 * go out of scope quietly
8aacddc1 774 */
a26e96df 775 if (SvPADMY(sv) && !SvFAKE(sv))
8aacddc1
NIS
776 SvREADONLY_off(sv);
777
6fc92669 778 if (SvTHINKFIRST(sv))
840a7b70 779 sv_force_normal_flags(sv, SV_IMMEDIATE_UNREF);
a0d0e21e
LW
780 if (SvMAGICAL(sv))
781 mg_free(sv);
8990e307
LW
782
783 switch (SvTYPE(sv)) {
784 case SVt_NULL:
785 break;
786 case SVt_PVAV:
44a8e56a 787 av_clear((AV*)sv);
8990e307
LW
788 break;
789 case SVt_PVHV:
44a8e56a 790 hv_clear((HV*)sv);
8990e307
LW
791 break;
792 case SVt_PVCV:
cea2e8a9 793 Perl_croak(aTHX_ "panic: leave_scope pad code");
8990e307 794 default:
0c34ef67 795 SvOK_off(sv);
8990e307
LW
796 break;
797 }
d9d18af6 798 SvPADSTALE_on(sv); /* mark as no longer live */
8990e307
LW
799 }
800 else { /* Someone has a claim on this, so abandon it. */
35a4481c 801 const U32 padflags = SvFLAGS(sv) & (SVs_PADMY|SVs_PADTMP);
8990e307
LW
802 switch (SvTYPE(sv)) { /* Console ourselves with a new value */
803 case SVt_PVAV: *(SV**)ptr = (SV*)newAV(); break;
804 case SVt_PVHV: *(SV**)ptr = (SV*)newHV(); break;
561b68a9 805 default: *(SV**)ptr = newSV(0); break;
8990e307 806 }
53868620 807 SvREFCNT_dec(sv); /* Cast current value to the winds. */
d9d18af6
DM
808 /* preserve pad nature, but also mark as not live
809 * for any closure capturing */
2740392c 810 SvFLAGS(*(SV**)ptr) |= padflags | SVs_PADSTALE;
8990e307
LW
811 }
812 break;
813 case SAVEt_DELETE:
814 ptr = SSPOPPTR;
815 hv = (HV*)ptr;
816 ptr = SSPOPPTR;
7d654f43 817 (void)hv_delete(hv, (char*)ptr, (I32)SSPOPINT, G_DISCARD);
4e4c362e 818 SvREFCNT_dec(hv);
8aacddc1 819 Safefree(ptr);
8990e307 820 break;
146174a9
CB
821 case SAVEt_DESTRUCTOR_X:
822 ptr = SSPOPPTR;
acfe0abc 823 (*SSPOPDXPTR)(aTHX_ ptr);
a0d0e21e
LW
824 break;
825 case SAVEt_REGCONTEXT:
455ece5e 826 case SAVEt_ALLOC:
161b7d16 827 i = SSPOPINT;
3280af22 828 PL_savestack_ix -= i; /* regexp must have croaked */
a0d0e21e 829 break;
55497cff 830 case SAVEt_STACK_POS: /* Position on Perl stack */
161b7d16 831 i = SSPOPINT;
3280af22 832 PL_stack_sp = PL_stack_base + i;
55497cff 833 break;
ea8d6ae1
DB
834 case SAVEt_STACK_CXPOS: /* blk_oldsp on context stack */
835 i = SSPOPINT;
836 cxstack[i].blk_oldsp = SSPOPINT;
837 break;
161b7d16
SM
838 case SAVEt_AELEM: /* array element */
839 value = (SV*)SSPOPPTR;
840 i = SSPOPINT;
841 av = (AV*)SSPOPPTR;
658aef79 842 ptr = av_fetch(av,i,1);
5dd42e15
DM
843 if (!AvREAL(av) && AvREIFY(av)) /* undo reify guard */
844 SvREFCNT_dec(value);
4e4c362e
GS
845 if (ptr) {
846 sv = *(SV**)ptr;
3280af22 847 if (sv && sv != &PL_sv_undef) {
14befaf4 848 if (SvTIED_mg((SV*)av, PERL_MAGIC_tied))
b37c2d43 849 SvREFCNT_inc_void_NN(sv);
4e4c362e
GS
850 goto restore_sv;
851 }
852 }
853 SvREFCNT_dec(av);
854 SvREFCNT_dec(value);
855 break;
161b7d16
SM
856 case SAVEt_HELEM: /* hash element */
857 value = (SV*)SSPOPPTR;
9002cb76 858 sv = (SV*)SSPOPPTR;
161b7d16
SM
859 hv = (HV*)SSPOPPTR;
860 ptr = hv_fetch_ent(hv, sv, 1, 0);
4e4c362e 861 if (ptr) {
35a4481c 862 const SV * const oval = HeVAL((HE*)ptr);
3280af22 863 if (oval && oval != &PL_sv_undef) {
4e4c362e 864 ptr = &HeVAL((HE*)ptr);
14befaf4 865 if (SvTIED_mg((SV*)hv, PERL_MAGIC_tied))
b37c2d43 866 SvREFCNT_inc_void(*(SV**)ptr);
4e4c362e 867 SvREFCNT_dec(sv);
5dd42e15 868 av = (AV*)hv; /* what to refcnt_dec */
4e4c362e
GS
869 goto restore_sv;
870 }
871 }
872 SvREFCNT_dec(hv);
873 SvREFCNT_dec(sv);
874 SvREFCNT_dec(value);
875 break;
462e5cf6 876 case SAVEt_OP:
533c011a 877 PL_op = (OP*)SSPOPPTR;
462e5cf6 878 break;
25eaa213 879 case SAVEt_HINTS:
045ac317
RGS
880 if ((PL_hints & HINT_LOCALIZE_HH) && GvHV(PL_hintgv)) {
881 SvREFCNT_dec((SV*)GvHV(PL_hintgv));
882 GvHV(PL_hintgv) = NULL;
883 }
3280af22 884 *(I32*)&PL_hints = (I32)SSPOPINT;
c28fe1ec
NC
885 Perl_refcounted_he_free(aTHX_ PL_compiling.cop_hints_hash);
886 PL_compiling.cop_hints_hash = (struct refcounted_he *) SSPOPPTR;
dfa41748
DM
887 if (PL_hints & HINT_LOCALIZE_HH) {
888 SvREFCNT_dec((SV*)GvHV(PL_hintgv));
889 GvHV(PL_hintgv) = (HV*)SSPOPPTR;
5b9c0671
NC
890 assert(GvHV(PL_hintgv));
891 } else if (!GvHV(PL_hintgv)) {
892 /* Need to add a new one manually, else gv_fetchpv() can
893 add one in this code:
894
895 if (SvTYPE(gv) == SVt_PVGV) {
896 if (add) {
897 GvMULTI_on(gv);
898 gv_init_sv(gv, sv_type);
899 if (*name=='!' && sv_type == SVt_PVHV && len==1)
900 require_errno(gv);
901 }
902 return gv;
903 }
904
905 and it won't have the magic set. */
906
907 HV *const hv = newHV();
908 hv_magic(hv, NULL, PERL_MAGIC_hints);
909 GvHV(PL_hintgv) = hv;
dfa41748 910 }
5b9c0671 911 assert(GvHV(PL_hintgv));
b3ac6de7 912 break;
cb50131a 913 case SAVEt_COMPPAD:
f3548bdc 914 PL_comppad = (PAD*)SSPOPPTR;
58ed4fbe 915 if (PL_comppad)
cb50131a
CB
916 PL_curpad = AvARRAY(PL_comppad);
917 else
4608196e 918 PL_curpad = NULL;
cb50131a 919 break;
c3564e5c
GS
920 case SAVEt_PADSV:
921 {
35a4481c 922 const PADOFFSET off = (PADOFFSET)SSPOPLONG;
c3564e5c
GS
923 ptr = SSPOPPTR;
924 if (ptr)
f3548bdc 925 AvARRAY((PAD*)ptr)[off] = (SV*)SSPOPPTR;
c3564e5c
GS
926 }
927 break;
8b7059b1
DM
928 case SAVEt_SAVESWITCHSTACK:
929 {
930 dSP;
7452cf6a
AL
931 AV* const t = (AV*)SSPOPPTR;
932 AV* const f = (AV*)SSPOPPTR;
8b7059b1
DM
933 SWITCHSTACK(t,f);
934 PL_curstackinfo->si_stack = f;
935 }
936 break;
14f338dc
DM
937 case SAVEt_SET_SVFLAGS:
938 {
35a4481c
AL
939 const U32 val = (U32)SSPOPINT;
940 const U32 mask = (U32)SSPOPINT;
14f338dc
DM
941 sv = (SV*)SSPOPPTR;
942 SvFLAGS(sv) &= ~mask;
943 SvFLAGS(sv) |= val;
944 }
945 break;
2053acbf
NC
946 /* These are only saved in mathoms.c */
947 case SAVEt_SVREF: /* scalar reference */
948 value = (SV*)SSPOPPTR;
949 ptr = SSPOPPTR;
950 av = NULL; /* what to refcnt_dec */
951 goto restore_sv;
952 case SAVEt_LONG: /* long reference */
953 ptr = SSPOPPTR;
954 *(long*)ptr = (long)SSPOPLONG;
955 break;
956 case SAVEt_I16: /* I16 reference */
957 ptr = SSPOPPTR;
958 *(I16*)ptr = (I16)SSPOPINT;
959 break;
960 case SAVEt_I8: /* I8 reference */
961 ptr = SSPOPPTR;
962 *(I8*)ptr = (I8)SSPOPINT;
963 break;
964 case SAVEt_IV: /* IV reference */
965 ptr = SSPOPPTR;
966 *(IV*)ptr = (IV)SSPOPIV;
967 break;
968 case SAVEt_NSTAB:
969 gv = (GV*)SSPOPPTR;
970 (void)sv_clear((SV*)gv);
971 break;
972 case SAVEt_DESTRUCTOR:
973 ptr = SSPOPPTR;
974 (*SSPOPDPTR)(ptr);
975 break;
fc15ae8f
NC
976 case SAVEt_COP_ARYBASE:
977 ptr = SSPOPPTR;
978 i = SSPOPINT;
979 CopARYBASE_set((COP *)ptr, i);
980 break;
68da3b2f
NC
981 case SAVEt_COMPILE_WARNINGS:
982 ptr = SSPOPPTR;
72dc9ed5 983
68da3b2f
NC
984 if (!specialWARN(PL_compiling.cop_warnings))
985 PerlMemShared_free(PL_compiling.cop_warnings);
72dc9ed5 986
10edeb5d 987 PL_compiling.cop_warnings = (STRLEN*)ptr;
72dc9ed5 988 break;
1ade1aa1
NC
989 case SAVEt_RE_STATE:
990 {
991 const struct re_save_state *const state
992 = (struct re_save_state *)
993 (PL_savestack + PL_savestack_ix
994 - SAVESTACK_ALLOC_FOR_RE_SAVE_STATE);
995 PL_savestack_ix -= SAVESTACK_ALLOC_FOR_RE_SAVE_STATE;
996
1ade1aa1
NC
997 if (PL_reg_start_tmp != state->re_state_reg_start_tmp) {
998 Safefree(PL_reg_start_tmp);
1ade1aa1 999 }
1ade1aa1
NC
1000 if (PL_reg_poscache != state->re_state_reg_poscache) {
1001 Safefree(PL_reg_poscache);
1ade1aa1 1002 }
46ab3289 1003 Copy(state, &PL_reg_state, 1, struct re_save_state);
1ade1aa1
NC
1004 }
1005 break;
79072805 1006 default:
cea2e8a9 1007 Perl_croak(aTHX_ "panic: leave_scope inconsistency");
79072805
LW
1008 }
1009 }
1010}
8990e307 1011
8990e307 1012void
864dbfa3 1013Perl_cx_dump(pTHX_ PERL_CONTEXT *cx)
8990e307 1014{
97aff369 1015 dVAR;
35ff7856 1016#ifdef DEBUGGING
22c35a8c 1017 PerlIO_printf(Perl_debug_log, "CX %ld = %s\n", (long)(cx - cxstack), PL_block_type[CxTYPE(cx)]);
6b35e009 1018 if (CxTYPE(cx) != CXt_SUBST) {
760ac839 1019 PerlIO_printf(Perl_debug_log, "BLK_OLDSP = %ld\n", (long)cx->blk_oldsp);
146174a9
CB
1020 PerlIO_printf(Perl_debug_log, "BLK_OLDCOP = 0x%"UVxf"\n",
1021 PTR2UV(cx->blk_oldcop));
760ac839
LW
1022 PerlIO_printf(Perl_debug_log, "BLK_OLDMARKSP = %ld\n", (long)cx->blk_oldmarksp);
1023 PerlIO_printf(Perl_debug_log, "BLK_OLDSCOPESP = %ld\n", (long)cx->blk_oldscopesp);
146174a9
CB
1024 PerlIO_printf(Perl_debug_log, "BLK_OLDPM = 0x%"UVxf"\n",
1025 PTR2UV(cx->blk_oldpm));
760ac839 1026 PerlIO_printf(Perl_debug_log, "BLK_GIMME = %s\n", cx->blk_gimme ? "LIST" : "SCALAR");
8990e307 1027 }
6b35e009 1028 switch (CxTYPE(cx)) {
8990e307
LW
1029 case CXt_NULL:
1030 case CXt_BLOCK:
1031 break;
146174a9
CB
1032 case CXt_FORMAT:
1033 PerlIO_printf(Perl_debug_log, "BLK_SUB.CV = 0x%"UVxf"\n",
1034 PTR2UV(cx->blk_sub.cv));
1035 PerlIO_printf(Perl_debug_log, "BLK_SUB.GV = 0x%"UVxf"\n",
1036 PTR2UV(cx->blk_sub.gv));
1037 PerlIO_printf(Perl_debug_log, "BLK_SUB.DFOUTGV = 0x%"UVxf"\n",
1038 PTR2UV(cx->blk_sub.dfoutgv));
1039 PerlIO_printf(Perl_debug_log, "BLK_SUB.HASARGS = %d\n",
cc8d50a7 1040 (int)cx->blk_sub.hasargs);
f39bc417
DM
1041 PerlIO_printf(Perl_debug_log, "BLK_SUB.RETOP = 0x%"UVxf"\n",
1042 PTR2UV(cx->blk_sub.retop));
146174a9 1043 break;
8990e307 1044 case CXt_SUB:
146174a9
CB
1045 PerlIO_printf(Perl_debug_log, "BLK_SUB.CV = 0x%"UVxf"\n",
1046 PTR2UV(cx->blk_sub.cv));
760ac839 1047 PerlIO_printf(Perl_debug_log, "BLK_SUB.OLDDEPTH = %ld\n",
8990e307 1048 (long)cx->blk_sub.olddepth);
760ac839 1049 PerlIO_printf(Perl_debug_log, "BLK_SUB.HASARGS = %d\n",
cc8d50a7 1050 (int)cx->blk_sub.hasargs);
146174a9 1051 PerlIO_printf(Perl_debug_log, "BLK_SUB.LVAL = %d\n",
cc8d50a7 1052 (int)cx->blk_sub.lval);
f39bc417
DM
1053 PerlIO_printf(Perl_debug_log, "BLK_SUB.RETOP = 0x%"UVxf"\n",
1054 PTR2UV(cx->blk_sub.retop));
8990e307
LW
1055 break;
1056 case CXt_EVAL:
760ac839 1057 PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_IN_EVAL = %ld\n",
8990e307 1058 (long)cx->blk_eval.old_in_eval);
760ac839 1059 PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_OP_TYPE = %s (%s)\n",
22c35a8c
GS
1060 PL_op_name[cx->blk_eval.old_op_type],
1061 PL_op_desc[cx->blk_eval.old_op_type]);
0f79a09d
GS
1062 if (cx->blk_eval.old_namesv)
1063 PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_NAME = %s\n",
aa07b2f6 1064 SvPVX_const(cx->blk_eval.old_namesv));
146174a9
CB
1065 PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_EVAL_ROOT = 0x%"UVxf"\n",
1066 PTR2UV(cx->blk_eval.old_eval_root));
f39bc417
DM
1067 PerlIO_printf(Perl_debug_log, "BLK_EVAL.RETOP = 0x%"UVxf"\n",
1068 PTR2UV(cx->blk_eval.retop));
8990e307
LW
1069 break;
1070
1071 case CXt_LOOP:
760ac839 1072 PerlIO_printf(Perl_debug_log, "BLK_LOOP.LABEL = %s\n",
8990e307 1073 cx->blk_loop.label);
760ac839 1074 PerlIO_printf(Perl_debug_log, "BLK_LOOP.RESETSP = %ld\n",
8990e307 1075 (long)cx->blk_loop.resetsp);
022eaa24
NC
1076 PerlIO_printf(Perl_debug_log, "BLK_LOOP.MY_OP = 0x%"UVxf"\n",
1077 PTR2UV(cx->blk_loop.my_op));
146174a9 1078 PerlIO_printf(Perl_debug_log, "BLK_LOOP.NEXT_OP = 0x%"UVxf"\n",
022eaa24 1079 PTR2UV(CX_LOOP_NEXTOP_GET(cx)));
760ac839 1080 PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERIX = %ld\n",
8990e307 1081 (long)cx->blk_loop.iterix);
146174a9
CB
1082 PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERARY = 0x%"UVxf"\n",
1083 PTR2UV(cx->blk_loop.iterary));
1084 PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERVAR = 0x%"UVxf"\n",
1085 PTR2UV(CxITERVAR(cx)));
1086 if (CxITERVAR(cx))
1087 PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERSAVE = 0x%"UVxf"\n",
1088 PTR2UV(cx->blk_loop.itersave));
1089 PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERLVAL = 0x%"UVxf"\n",
1090 PTR2UV(cx->blk_loop.iterlval));
8990e307
LW
1091 break;
1092
1093 case CXt_SUBST:
760ac839 1094 PerlIO_printf(Perl_debug_log, "SB_ITERS = %ld\n",
8990e307 1095 (long)cx->sb_iters);
760ac839 1096 PerlIO_printf(Perl_debug_log, "SB_MAXITERS = %ld\n",
8990e307 1097 (long)cx->sb_maxiters);
35ef4773
GS
1098 PerlIO_printf(Perl_debug_log, "SB_RFLAGS = %ld\n",
1099 (long)cx->sb_rflags);
760ac839 1100 PerlIO_printf(Perl_debug_log, "SB_ONCE = %ld\n",
8990e307 1101 (long)cx->sb_once);
760ac839 1102 PerlIO_printf(Perl_debug_log, "SB_ORIG = %s\n",
8990e307 1103 cx->sb_orig);
146174a9
CB
1104 PerlIO_printf(Perl_debug_log, "SB_DSTR = 0x%"UVxf"\n",
1105 PTR2UV(cx->sb_dstr));
1106 PerlIO_printf(Perl_debug_log, "SB_TARG = 0x%"UVxf"\n",
1107 PTR2UV(cx->sb_targ));
1108 PerlIO_printf(Perl_debug_log, "SB_S = 0x%"UVxf"\n",
1109 PTR2UV(cx->sb_s));
1110 PerlIO_printf(Perl_debug_log, "SB_M = 0x%"UVxf"\n",
1111 PTR2UV(cx->sb_m));
1112 PerlIO_printf(Perl_debug_log, "SB_STREND = 0x%"UVxf"\n",
1113 PTR2UV(cx->sb_strend));
1114 PerlIO_printf(Perl_debug_log, "SB_RXRES = 0x%"UVxf"\n",
1115 PTR2UV(cx->sb_rxres));
8990e307
LW
1116 break;
1117 }
65e66c80 1118#else
96a5add6 1119 PERL_UNUSED_CONTEXT;
65e66c80 1120 PERL_UNUSED_ARG(cx);
17c3b450 1121#endif /* DEBUGGING */
35ff7856 1122}
241d1a3b
NC
1123
1124/*
1125 * Local variables:
1126 * c-indentation-style: bsd
1127 * c-basic-offset: 4
1128 * indent-tabs-mode: t
1129 * End:
1130 *
37442d52
RGS
1131 * ex: set ts=8 sts=4 sw=4 noet:
1132 */