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a0d0e21e 1/* scope.c
79072805 2 *
4bb101f2 3 * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
fdf8c088 4 * 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 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
a0d0e21e 168 if (SvTYPE(osv) >= SVt_PVMG && SvMAGIC(osv) && SvTYPE(osv) != SVt_PVGV) {
a0d0e21e 169 if (SvGMAGICAL(osv)) {
35a4481c 170 const bool oldtainted = PL_tainted;
a0d0e21e 171 SvFLAGS(osv) |= (SvFLAGS(osv) &
c268c2a6 172 (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT;
3280af22 173 PL_tainted = oldtainted;
a0d0e21e 174 }
0cbee0a4 175 mg_localize(osv, sv);
79072805
LW
176 }
177 return sv;
178}
179
7a4c00b4 180SV *
864dbfa3 181Perl_save_scalar(pTHX_ GV *gv)
7a4c00b4 182{
97aff369 183 dVAR;
fb4fc1fa 184 SV ** const sptr = &GvSVn(gv);
27cc343c 185 PL_localizing = 1;
0cbee0a4 186 SvGETMAGIC(*sptr);
27cc343c 187 PL_localizing = 0;
7a4c00b4 188 SSCHECK(3);
b37c2d43 189 SSPUSHPTR(SvREFCNT_inc_simple(gv));
4e4c362e 190 SSPUSHPTR(SvREFCNT_inc(*sptr));
7a4c00b4 191 SSPUSHINT(SAVEt_SV);
4e4c362e 192 return save_scalar_at(sptr);
7a4c00b4
PP
193}
194
f4dd75d9 195/* Like save_sptr(), but also SvREFCNT_dec()s the new value. Can be used to
b9d12d37
GS
196 * restore a global SV to its prior contents, freeing new value. */
197void
864dbfa3 198Perl_save_generic_svref(pTHX_ SV **sptr)
b9d12d37 199{
97aff369 200 dVAR;
b9d12d37
GS
201 SSCHECK(3);
202 SSPUSHPTR(sptr);
203 SSPUSHPTR(SvREFCNT_inc(*sptr));
204 SSPUSHINT(SAVEt_GENERIC_SVREF);
205}
206
f4dd75d9
GS
207/* Like save_pptr(), but also Safefree()s the new value if it is different
208 * from the old one. Can be used to restore a global char* to its prior
209 * contents, freeing new value. */
210void
211Perl_save_generic_pvref(pTHX_ char **str)
212{
97aff369 213 dVAR;
f4dd75d9 214 SSCHECK(3);
f4dd75d9 215 SSPUSHPTR(*str);
b03d03b0 216 SSPUSHPTR(str);
f4dd75d9
GS
217 SSPUSHINT(SAVEt_GENERIC_PVREF);
218}
219
05ec9bb3
NIS
220/* Like save_generic_pvref(), but uses PerlMemShared_free() rather than Safefree().
221 * Can be used to restore a shared global char* to its prior
222 * contents, freeing new value. */
223void
224Perl_save_shared_pvref(pTHX_ char **str)
225{
97aff369 226 dVAR;
05ec9bb3
NIS
227 SSCHECK(3);
228 SSPUSHPTR(str);
229 SSPUSHPTR(*str);
230 SSPUSHINT(SAVEt_SHARED_PVREF);
231}
232
14f338dc
DM
233/* set the SvFLAGS specified by mask to the values in val */
234
235void
236Perl_save_set_svflags(pTHX_ SV* sv, U32 mask, U32 val)
237{
97aff369 238 dVAR;
14f338dc
DM
239 SSCHECK(4);
240 SSPUSHPTR(sv);
241 SSPUSHINT(mask);
242 SSPUSHINT(val);
243 SSPUSHINT(SAVEt_SET_SVFLAGS);
244}
245
79072805 246void
864dbfa3 247Perl_save_gp(pTHX_ GV *gv, I32 empty)
79072805 248{
97aff369 249 dVAR;
576df6af 250 SSGROW(3);
4633a7c4 251 SSPUSHPTR(SvREFCNT_inc(gv));
5f05dabc 252 SSPUSHPTR(GvGP(gv));
79072805
LW
253 SSPUSHINT(SAVEt_GP);
254
5f05dabc 255 if (empty) {
12816592 256 GP *gp = Perl_newGP(aTHX_ gv);
146174a9 257
fae75791 258 if (GvCVu(gv))
e1a479c5 259 mro_method_changed_in(GvSTASH(gv)); /* taking a method out of circulation ("local")*/
146174a9
CB
260 if (GvIOp(gv) && (IoFLAGS(GvIOp(gv)) & IOf_ARGV)) {
261 gp->gp_io = newIO();
262 IoFLAGS(gp->gp_io) |= IOf_ARGV|IOf_START;
263 }
12816592 264 GvGP(gv) = gp;
5f05dabc
PP
265 }
266 else {
44a8e56a 267 gp_ref(GvGP(gv));
5f05dabc
PP
268 GvINTRO_on(gv);
269 }
79072805 270}
79072805 271
79072805 272AV *
864dbfa3 273Perl_save_ary(pTHX_ GV *gv)
79072805 274{
97aff369 275 dVAR;
901017d6 276 AV * const oav = GvAVn(gv);
67a38de0 277 AV *av;
fb73857a 278
67a38de0
NIS
279 if (!AvREAL(oav) && AvREIFY(oav))
280 av_reify(oav);
79072805
LW
281 SSCHECK(3);
282 SSPUSHPTR(gv);
67a38de0 283 SSPUSHPTR(oav);
79072805
LW
284 SSPUSHINT(SAVEt_AV);
285
4608196e 286 GvAV(gv) = NULL;
fb73857a 287 av = GvAVn(gv);
0cbee0a4
DM
288 if (SvMAGIC(oav))
289 mg_localize((SV*)oav, (SV*)av);
fb73857a 290 return av;
79072805
LW
291}
292
293HV *
864dbfa3 294Perl_save_hash(pTHX_ GV *gv)
79072805 295{
97aff369 296 dVAR;
fb73857a
PP
297 HV *ohv, *hv;
298
79072805
LW
299 SSCHECK(3);
300 SSPUSHPTR(gv);
fb73857a 301 SSPUSHPTR(ohv = GvHVn(gv));
79072805
LW
302 SSPUSHINT(SAVEt_HV);
303
4608196e 304 GvHV(gv) = NULL;
fb73857a 305 hv = GvHVn(gv);
0cbee0a4
DM
306 if (SvMAGIC(ohv))
307 mg_localize((SV*)ohv, (SV*)hv);
fb73857a 308 return hv;
79072805
LW
309}
310
311void
864dbfa3 312Perl_save_item(pTHX_ register SV *item)
79072805 313{
97aff369 314 dVAR;
901017d6 315 register SV * const sv = newSVsv(item);
79072805
LW
316
317 SSCHECK(3);
318 SSPUSHPTR(item); /* remember the pointer */
79072805
LW
319 SSPUSHPTR(sv); /* remember the value */
320 SSPUSHINT(SAVEt_ITEM);
321}
322
323void
864dbfa3 324Perl_save_int(pTHX_ int *intp)
79072805 325{
97aff369 326 dVAR;
79072805
LW
327 SSCHECK(3);
328 SSPUSHINT(*intp);
329 SSPUSHPTR(intp);
330 SSPUSHINT(SAVEt_INT);
331}
332
333void
9febdf04
RH
334Perl_save_bool(pTHX_ bool *boolp)
335{
97aff369 336 dVAR;
9febdf04
RH
337 SSCHECK(3);
338 SSPUSHBOOL(*boolp);
339 SSPUSHPTR(boolp);
340 SSPUSHINT(SAVEt_BOOL);
341}
342
343void
58188858
RGS
344Perl_save_I8(pTHX_ I8 *bytep)
345{
346 dVAR;
347 SSCHECK(3);
348 SSPUSHINT(*bytep);
349 SSPUSHPTR(bytep);
350 SSPUSHINT(SAVEt_I8);
351}
352
353void
864dbfa3 354Perl_save_I32(pTHX_ I32 *intp)
79072805 355{
97aff369 356 dVAR;
79072805
LW
357 SSCHECK(3);
358 SSPUSHINT(*intp);
359 SSPUSHPTR(intp);
360 SSPUSHINT(SAVEt_I32);
361}
362
85e6fe83
LW
363/* Cannot use save_sptr() to store a char* since the SV** cast will
364 * force word-alignment and we'll miss the pointer.
365 */
366void
864dbfa3 367Perl_save_pptr(pTHX_ char **pptr)
85e6fe83 368{
97aff369 369 dVAR;
85e6fe83
LW
370 SSCHECK(3);
371 SSPUSHPTR(*pptr);
372 SSPUSHPTR(pptr);
373 SSPUSHINT(SAVEt_PPTR);
374}
375
79072805 376void
146174a9
CB
377Perl_save_vptr(pTHX_ void *ptr)
378{
97aff369 379 dVAR;
146174a9
CB
380 SSCHECK(3);
381 SSPUSHPTR(*(char**)ptr);
382 SSPUSHPTR(ptr);
383 SSPUSHINT(SAVEt_VPTR);
384}
385
386void
864dbfa3 387Perl_save_sptr(pTHX_ SV **sptr)
79072805 388{
97aff369 389 dVAR;
79072805
LW
390 SSCHECK(3);
391 SSPUSHPTR(*sptr);
392 SSPUSHPTR(sptr);
393 SSPUSHINT(SAVEt_SPTR);
394}
395
c3564e5c
GS
396void
397Perl_save_padsv(pTHX_ PADOFFSET off)
398{
97aff369 399 dVAR;
c3564e5c 400 SSCHECK(4);
f3548bdc 401 ASSERT_CURPAD_ACTIVE("save_padsv");
c3564e5c 402 SSPUSHPTR(PL_curpad[off]);
f3548bdc 403 SSPUSHPTR(PL_comppad);
c3564e5c
GS
404 SSPUSHLONG((long)off);
405 SSPUSHINT(SAVEt_PADSV);
406}
407
79072805 408void
864dbfa3 409Perl_save_hptr(pTHX_ HV **hptr)
79072805 410{
97aff369 411 dVAR;
79072805 412 SSCHECK(3);
85e6fe83 413 SSPUSHPTR(*hptr);
79072805
LW
414 SSPUSHPTR(hptr);
415 SSPUSHINT(SAVEt_HPTR);
416}
417
418void
864dbfa3 419Perl_save_aptr(pTHX_ AV **aptr)
79072805 420{
97aff369 421 dVAR;
79072805 422 SSCHECK(3);
85e6fe83 423 SSPUSHPTR(*aptr);
79072805
LW
424 SSPUSHPTR(aptr);
425 SSPUSHINT(SAVEt_APTR);
426}
427
428void
864dbfa3 429Perl_save_freesv(pTHX_ SV *sv)
8990e307 430{
97aff369 431 dVAR;
8990e307
LW
432 SSCHECK(2);
433 SSPUSHPTR(sv);
434 SSPUSHINT(SAVEt_FREESV);
435}
436
437void
26d9b02f
JH
438Perl_save_mortalizesv(pTHX_ SV *sv)
439{
97aff369 440 dVAR;
26d9b02f
JH
441 SSCHECK(2);
442 SSPUSHPTR(sv);
443 SSPUSHINT(SAVEt_MORTALIZESV);
444}
445
446void
864dbfa3 447Perl_save_freeop(pTHX_ OP *o)
8990e307 448{
97aff369 449 dVAR;
8990e307 450 SSCHECK(2);
11343788 451 SSPUSHPTR(o);
8990e307
LW
452 SSPUSHINT(SAVEt_FREEOP);
453}
454
455void
864dbfa3 456Perl_save_freepv(pTHX_ char *pv)
8990e307 457{
97aff369 458 dVAR;
8990e307
LW
459 SSCHECK(2);
460 SSPUSHPTR(pv);
461 SSPUSHINT(SAVEt_FREEPV);
462}
463
464void
864dbfa3 465Perl_save_clearsv(pTHX_ SV **svp)
8990e307 466{
97aff369 467 dVAR;
f3548bdc 468 ASSERT_CURPAD_ACTIVE("save_clearsv");
8990e307 469 SSCHECK(2);
3280af22 470 SSPUSHLONG((long)(svp-PL_curpad));
8990e307 471 SSPUSHINT(SAVEt_CLEARSV);
d9d18af6 472 SvPADSTALE_off(*svp); /* mark lexical as active */
8990e307
LW
473}
474
475void
864dbfa3 476Perl_save_delete(pTHX_ HV *hv, char *key, I32 klen)
8990e307 477{
97aff369 478 dVAR;
8990e307
LW
479 SSCHECK(4);
480 SSPUSHINT(klen);
481 SSPUSHPTR(key);
b37c2d43 482 SSPUSHPTR(SvREFCNT_inc_simple(hv));
8990e307
LW
483 SSPUSHINT(SAVEt_DELETE);
484}
485
486void
12ab1f58
JH
487Perl_save_destructor(pTHX_ DESTRUCTORFUNC_NOCONTEXT_t f, void* p)
488{
489 dVAR;
490 SSCHECK(3);
491 SSPUSHDPTR(f);
492 SSPUSHPTR(p);
493 SSPUSHINT(SAVEt_DESTRUCTOR);
494}
495
496void
146174a9
CB
497Perl_save_destructor_x(pTHX_ DESTRUCTORFUNC_t f, void* p)
498{
97aff369 499 dVAR;
146174a9
CB
500 SSCHECK(3);
501 SSPUSHDXPTR(f);
502 SSPUSHPTR(p);
503 SSPUSHINT(SAVEt_DESTRUCTOR_X);
504}
505
506void
59413342 507Perl_save_aelem(pTHX_ AV *av, I32 idx, SV **sptr)
4e4c362e 508{
97aff369 509 dVAR;
bfc4de9f 510 SV *sv;
0cbee0a4 511 SvGETMAGIC(*sptr);
4e4c362e 512 SSCHECK(4);
b37c2d43 513 SSPUSHPTR(SvREFCNT_inc_simple(av));
4e4c362e
GS
514 SSPUSHINT(idx);
515 SSPUSHPTR(SvREFCNT_inc(*sptr));
516 SSPUSHINT(SAVEt_AELEM);
5dd42e15
DM
517 /* if it gets reified later, the restore will have the wrong refcnt */
518 if (!AvREAL(av) && AvREIFY(av))
b37c2d43 519 SvREFCNT_inc_void(*sptr);
4e4c362e 520 save_scalar_at(sptr);
bfc4de9f
DM
521 sv = *sptr;
522 /* If we're localizing a tied array element, this new sv
523 * won't actually be stored in the array - so it won't get
524 * reaped when the localize ends. Ensure it gets reaped by
525 * mortifying it instead. DAPM */
526 if (SvTIED_mg(sv, PERL_MAGIC_tiedelem))
527 sv_2mortal(sv);
4e4c362e
GS
528}
529
530void
e1ec3a88 531Perl_save_helem(pTHX_ HV *hv, SV *key, SV **sptr)
4e4c362e 532{
97aff369 533 dVAR;
bfc4de9f 534 SV *sv;
0cbee0a4 535 SvGETMAGIC(*sptr);
4e4c362e 536 SSCHECK(4);
b37c2d43
AL
537 SSPUSHPTR(SvREFCNT_inc_simple(hv));
538 SSPUSHPTR(SvREFCNT_inc_simple(key));
4e4c362e
GS
539 SSPUSHPTR(SvREFCNT_inc(*sptr));
540 SSPUSHINT(SAVEt_HELEM);
541 save_scalar_at(sptr);
bfc4de9f
DM
542 sv = *sptr;
543 /* If we're localizing a tied hash element, this new sv
544 * won't actually be stored in the hash - so it won't get
545 * reaped when the localize ends. Ensure it gets reaped by
546 * mortifying it instead. DAPM */
547 if (SvTIED_mg(sv, PERL_MAGIC_tiedelem))
548 sv_2mortal(sv);
4e4c362e
GS
549}
550
2053acbf
NC
551SV*
552Perl_save_svref(pTHX_ SV **sptr)
553{
554 dVAR;
555 SvGETMAGIC(*sptr);
556 SSCHECK(3);
557 SSPUSHPTR(sptr);
558 SSPUSHPTR(SvREFCNT_inc(*sptr));
559 SSPUSHINT(SAVEt_SVREF);
560 return save_scalar_at(sptr);
561}
562
4e4c362e 563void
864dbfa3 564Perl_save_op(pTHX)
462e5cf6 565{
97aff369 566 dVAR;
462e5cf6 567 SSCHECK(2);
533c011a 568 SSPUSHPTR(PL_op);
462e5cf6
MB
569 SSPUSHINT(SAVEt_OP);
570}
571
455ece5e 572I32
864dbfa3 573Perl_save_alloc(pTHX_ I32 size, I32 pad)
455ece5e 574{
97aff369 575 dVAR;
35a4481c 576 register const I32 start = pad + ((char*)&PL_savestack[PL_savestack_ix]
8aacddc1 577 - (char*)PL_savestack);
35a4481c 578 register const I32 elems = 1 + ((size + pad - 1) / sizeof(*PL_savestack));
455ece5e 579
1bb4c835 580 SSGROW(elems + 2);
455ece5e
AD
581
582 PL_savestack_ix += elems;
583 SSPUSHINT(elems);
584 SSPUSHINT(SAVEt_ALLOC);
585 return start;
586}
587
462e5cf6 588void
864dbfa3 589Perl_leave_scope(pTHX_ I32 base)
79072805 590{
97aff369 591 dVAR;
79072805
LW
592 register SV *sv;
593 register SV *value;
594 register GV *gv;
595 register AV *av;
596 register HV *hv;
20454177 597 void* ptr;
f4dd75d9 598 register char* str;
161b7d16 599 I32 i;
79072805
LW
600
601 if (base < -1)
cea2e8a9 602 Perl_croak(aTHX_ "panic: corrupt saved stack index");
3280af22 603 while (PL_savestack_ix > base) {
79072805
LW
604 switch (SSPOPINT) {
605 case SAVEt_ITEM: /* normal string */
606 value = (SV*)SSPOPPTR;
607 sv = (SV*)SSPOPPTR;
608 sv_replace(sv,value);
3280af22 609 PL_localizing = 2;
79072805 610 SvSETMAGIC(sv);
3280af22 611 PL_localizing = 0;
79072805 612 break;
8aacddc1 613 case SAVEt_SV: /* scalar reference */
79072805
LW
614 value = (SV*)SSPOPPTR;
615 gv = (GV*)SSPOPPTR;
7a4c00b4 616 ptr = &GvSV(gv);
5dd42e15 617 av = (AV*)gv; /* what to refcnt_dec */
2053acbf
NC
618 restore_sv:
619 sv = *(SV**)ptr;
620 DEBUG_S(PerlIO_printf(Perl_debug_log,
621 "restore svref: %p %p:%s -> %p:%s\n",
6c9570dc
MHM
622 (void*)ptr, (void*)sv, SvPEEK(sv),
623 (void*)value, SvPEEK(value)));
2053acbf
NC
624 *(SV**)ptr = value;
625 SvREFCNT_dec(sv);
626 PL_localizing = 2;
627 SvSETMAGIC(value);
628 PL_localizing = 0;
629 SvREFCNT_dec(value);
630 if (av) /* actually an av, hv or gv */
631 SvREFCNT_dec(av);
632 break;
8aacddc1 633 case SAVEt_GENERIC_PVREF: /* generic pv */
f4dd75d9 634 ptr = SSPOPPTR;
b03d03b0 635 str = (char*)SSPOPPTR;
f4dd75d9
GS
636 if (*(char**)ptr != str) {
637 Safefree(*(char**)ptr);
638 *(char**)ptr = str;
639 }
640 break;
05ec9bb3
NIS
641 case SAVEt_SHARED_PVREF: /* shared pv */
642 str = (char*)SSPOPPTR;
643 ptr = SSPOPPTR;
644 if (*(char**)ptr != str) {
5e54c26f 645#ifdef NETWARE
9ecbcc42 646 PerlMem_free(*(char**)ptr);
5e54c26f 647#else
05ec9bb3 648 PerlMemShared_free(*(char**)ptr);
5e54c26f 649#endif
05ec9bb3
NIS
650 *(char**)ptr = str;
651 }
652 break;
8aacddc1 653 case SAVEt_GENERIC_SVREF: /* generic sv */
b9d12d37
GS
654 value = (SV*)SSPOPPTR;
655 ptr = SSPOPPTR;
f4dd75d9
GS
656 sv = *(SV**)ptr;
657 *(SV**)ptr = value;
658 SvREFCNT_dec(sv);
b9d12d37
GS
659 SvREFCNT_dec(value);
660 break;
8aacddc1 661 case SAVEt_AV: /* array reference */
79072805
LW
662 av = (AV*)SSPOPPTR;
663 gv = (GV*)SSPOPPTR;
fb73857a 664 if (GvAV(gv)) {
35a4481c 665 AV * const goner = GvAV(gv);
404a4710
NC
666 /* FIXME - this is a temporary hack until we work out what
667 the correct behaviour for magic should be. */
668 sv_unmagic((SV*)goner, PERL_MAGIC_arylen_p);
b162af07 669 SvMAGIC_set(av, SvMAGIC(goner));
32da55ab 670 SvFLAGS((SV*)av) |= SvMAGICAL(goner);
fb73857a 671 SvMAGICAL_off(goner);
b162af07 672 SvMAGIC_set(goner, NULL);
fb73857a
PP
673 SvREFCNT_dec(goner);
674 }
8aacddc1 675 GvAV(gv) = av;
fb73857a 676 if (SvMAGICAL(av)) {
3280af22 677 PL_localizing = 2;
fb73857a 678 SvSETMAGIC((SV*)av);
3280af22 679 PL_localizing = 0;
fb73857a 680 }
8aacddc1
NIS
681 break;
682 case SAVEt_HV: /* hash reference */
79072805
LW
683 hv = (HV*)SSPOPPTR;
684 gv = (GV*)SSPOPPTR;
fb73857a 685 if (GvHV(gv)) {
35a4481c 686 HV * const goner = GvHV(gv);
b162af07 687 SvMAGIC_set(hv, SvMAGIC(goner));
fb73857a
PP
688 SvFLAGS(hv) |= SvMAGICAL(goner);
689 SvMAGICAL_off(goner);
b162af07 690 SvMAGIC_set(goner, NULL);
fb73857a
PP
691 SvREFCNT_dec(goner);
692 }
8aacddc1 693 GvHV(gv) = hv;
fb73857a 694 if (SvMAGICAL(hv)) {
3280af22 695 PL_localizing = 2;
fb73857a 696 SvSETMAGIC((SV*)hv);
3280af22 697 PL_localizing = 0;
fb73857a 698 }
8aacddc1 699 break;
79072805
LW
700 case SAVEt_INT: /* int reference */
701 ptr = SSPOPPTR;
702 *(int*)ptr = (int)SSPOPINT;
703 break;
9febdf04
RH
704 case SAVEt_BOOL: /* bool reference */
705 ptr = SSPOPPTR;
706 *(bool*)ptr = (bool)SSPOPBOOL;
707 break;
79072805
LW
708 case SAVEt_I32: /* I32 reference */
709 ptr = SSPOPPTR;
3235b7a3
NC
710#ifdef PERL_DEBUG_READONLY_OPS
711 {
712 const I32 val = SSPOPINT;
713 if (*(I32*)ptr != val)
714 *(I32*)ptr = val;
715 }
716#else
79072805 717 *(I32*)ptr = (I32)SSPOPINT;
3235b7a3 718#endif
79072805
LW
719 break;
720 case SAVEt_SPTR: /* SV* reference */
721 ptr = SSPOPPTR;
722 *(SV**)ptr = (SV*)SSPOPPTR;
723 break;
146174a9 724 case SAVEt_VPTR: /* random* reference */
85e6fe83
LW
725 case SAVEt_PPTR: /* char* reference */
726 ptr = SSPOPPTR;
727 *(char**)ptr = (char*)SSPOPPTR;
728 break;
79072805
LW
729 case SAVEt_HPTR: /* HV* reference */
730 ptr = SSPOPPTR;
731 *(HV**)ptr = (HV*)SSPOPPTR;
732 break;
733 case SAVEt_APTR: /* AV* reference */
734 ptr = SSPOPPTR;
735 *(AV**)ptr = (AV*)SSPOPPTR;
736 break;
fb73857a 737 case SAVEt_GP: /* scalar reference */
79072805
LW
738 ptr = SSPOPPTR;
739 gv = (GV*)SSPOPPTR;
8aacddc1
NIS
740 gp_free(gv);
741 GvGP(gv) = (GP*)ptr;
fae75791 742 if (GvCVu(gv))
e1a479c5 743 mro_method_changed_in(GvSTASH(gv)); /* putting a method back into circulation ("local")*/
4633a7c4 744 SvREFCNT_dec(gv);
8aacddc1 745 break;
8990e307
LW
746 case SAVEt_FREESV:
747 ptr = SSPOPPTR;
748 SvREFCNT_dec((SV*)ptr);
749 break;
26d9b02f
JH
750 case SAVEt_MORTALIZESV:
751 ptr = SSPOPPTR;
752 sv_2mortal((SV*)ptr);
753 break;
8990e307
LW
754 case SAVEt_FREEOP:
755 ptr = SSPOPPTR;
f3548bdc 756 ASSERT_CURPAD_LEGAL("SAVEt_FREEOP"); /* XXX DAPM tmp */
8990e307
LW
757 op_free((OP*)ptr);
758 break;
759 case SAVEt_FREEPV:
760 ptr = SSPOPPTR;
1df70142 761 Safefree(ptr);
8990e307
LW
762 break;
763 case SAVEt_CLEARSV:
3280af22 764 ptr = (void*)&PL_curpad[SSPOPLONG];
8990e307 765 sv = *(SV**)ptr;
dd2155a4
DM
766
767 DEBUG_Xv(PerlIO_printf(Perl_debug_log,
f3548bdc
DM
768 "Pad 0x%"UVxf"[0x%"UVxf"] clearsv: %ld sv=0x%"UVxf"<%"IVdf"> %s\n",
769 PTR2UV(PL_comppad), PTR2UV(PL_curpad),
770 (long)((SV **)ptr-PL_curpad), PTR2UV(sv), (IV)SvREFCNT(sv),
dd2155a4
DM
771 (SvREFCNT(sv) <= 1 && !SvOBJECT(sv)) ? "clear" : "abandon"
772 ));
773
bc44cdaf
GS
774 /* Can clear pad variable in place? */
775 if (SvREFCNT(sv) <= 1 && !SvOBJECT(sv)) {
8aacddc1
NIS
776 /*
777 * if a my variable that was made readonly is going out of
778 * scope, we want to remove the readonlyness so that it can
779 * go out of scope quietly
8aacddc1 780 */
a26e96df 781 if (SvPADMY(sv) && !SvFAKE(sv))
8aacddc1
NIS
782 SvREADONLY_off(sv);
783
6fc92669 784 if (SvTHINKFIRST(sv))
840a7b70 785 sv_force_normal_flags(sv, SV_IMMEDIATE_UNREF);
a0d0e21e
LW
786 if (SvMAGICAL(sv))
787 mg_free(sv);
8990e307
LW
788
789 switch (SvTYPE(sv)) {
790 case SVt_NULL:
791 break;
792 case SVt_PVAV:
44a8e56a 793 av_clear((AV*)sv);
8990e307
LW
794 break;
795 case SVt_PVHV:
44a8e56a 796 hv_clear((HV*)sv);
8990e307
LW
797 break;
798 case SVt_PVCV:
cea2e8a9 799 Perl_croak(aTHX_ "panic: leave_scope pad code");
8990e307 800 default:
0c34ef67 801 SvOK_off(sv);
8990e307
LW
802 break;
803 }
d9d18af6 804 SvPADSTALE_on(sv); /* mark as no longer live */
8990e307
LW
805 }
806 else { /* Someone has a claim on this, so abandon it. */
35a4481c 807 const U32 padflags = SvFLAGS(sv) & (SVs_PADMY|SVs_PADTMP);
8990e307
LW
808 switch (SvTYPE(sv)) { /* Console ourselves with a new value */
809 case SVt_PVAV: *(SV**)ptr = (SV*)newAV(); break;
810 case SVt_PVHV: *(SV**)ptr = (SV*)newHV(); break;
561b68a9 811 default: *(SV**)ptr = newSV(0); break;
8990e307 812 }
53868620 813 SvREFCNT_dec(sv); /* Cast current value to the winds. */
d9d18af6
DM
814 /* preserve pad nature, but also mark as not live
815 * for any closure capturing */
2740392c 816 SvFLAGS(*(SV**)ptr) |= padflags | SVs_PADSTALE;
8990e307
LW
817 }
818 break;
819 case SAVEt_DELETE:
820 ptr = SSPOPPTR;
821 hv = (HV*)ptr;
822 ptr = SSPOPPTR;
7d654f43 823 (void)hv_delete(hv, (char*)ptr, (I32)SSPOPINT, G_DISCARD);
4e4c362e 824 SvREFCNT_dec(hv);
8aacddc1 825 Safefree(ptr);
8990e307 826 break;
146174a9
CB
827 case SAVEt_DESTRUCTOR_X:
828 ptr = SSPOPPTR;
acfe0abc 829 (*SSPOPDXPTR)(aTHX_ ptr);
a0d0e21e
LW
830 break;
831 case SAVEt_REGCONTEXT:
455ece5e 832 case SAVEt_ALLOC:
161b7d16 833 i = SSPOPINT;
3280af22 834 PL_savestack_ix -= i; /* regexp must have croaked */
a0d0e21e 835 break;
55497cff 836 case SAVEt_STACK_POS: /* Position on Perl stack */
161b7d16 837 i = SSPOPINT;
3280af22 838 PL_stack_sp = PL_stack_base + i;
55497cff 839 break;
ea8d6ae1
DB
840 case SAVEt_STACK_CXPOS: /* blk_oldsp on context stack */
841 i = SSPOPINT;
842 cxstack[i].blk_oldsp = SSPOPINT;
843 break;
161b7d16
SM
844 case SAVEt_AELEM: /* array element */
845 value = (SV*)SSPOPPTR;
846 i = SSPOPINT;
847 av = (AV*)SSPOPPTR;
658aef79 848 ptr = av_fetch(av,i,1);
5dd42e15
DM
849 if (!AvREAL(av) && AvREIFY(av)) /* undo reify guard */
850 SvREFCNT_dec(value);
4e4c362e
GS
851 if (ptr) {
852 sv = *(SV**)ptr;
3280af22 853 if (sv && sv != &PL_sv_undef) {
14befaf4 854 if (SvTIED_mg((SV*)av, PERL_MAGIC_tied))
b37c2d43 855 SvREFCNT_inc_void_NN(sv);
4e4c362e
GS
856 goto restore_sv;
857 }
858 }
859 SvREFCNT_dec(av);
860 SvREFCNT_dec(value);
861 break;
161b7d16
SM
862 case SAVEt_HELEM: /* hash element */
863 value = (SV*)SSPOPPTR;
9002cb76 864 sv = (SV*)SSPOPPTR;
161b7d16
SM
865 hv = (HV*)SSPOPPTR;
866 ptr = hv_fetch_ent(hv, sv, 1, 0);
4e4c362e 867 if (ptr) {
35a4481c 868 const SV * const oval = HeVAL((HE*)ptr);
3280af22 869 if (oval && oval != &PL_sv_undef) {
4e4c362e 870 ptr = &HeVAL((HE*)ptr);
14befaf4 871 if (SvTIED_mg((SV*)hv, PERL_MAGIC_tied))
b37c2d43 872 SvREFCNT_inc_void(*(SV**)ptr);
4e4c362e 873 SvREFCNT_dec(sv);
5dd42e15 874 av = (AV*)hv; /* what to refcnt_dec */
4e4c362e
GS
875 goto restore_sv;
876 }
877 }
878 SvREFCNT_dec(hv);
879 SvREFCNT_dec(sv);
880 SvREFCNT_dec(value);
881 break;
462e5cf6 882 case SAVEt_OP:
533c011a 883 PL_op = (OP*)SSPOPPTR;
462e5cf6 884 break;
25eaa213 885 case SAVEt_HINTS:
045ac317
RGS
886 if ((PL_hints & HINT_LOCALIZE_HH) && GvHV(PL_hintgv)) {
887 SvREFCNT_dec((SV*)GvHV(PL_hintgv));
888 GvHV(PL_hintgv) = NULL;
889 }
3280af22 890 *(I32*)&PL_hints = (I32)SSPOPINT;
c28fe1ec
NC
891 Perl_refcounted_he_free(aTHX_ PL_compiling.cop_hints_hash);
892 PL_compiling.cop_hints_hash = (struct refcounted_he *) SSPOPPTR;
dfa41748
DM
893 if (PL_hints & HINT_LOCALIZE_HH) {
894 SvREFCNT_dec((SV*)GvHV(PL_hintgv));
895 GvHV(PL_hintgv) = (HV*)SSPOPPTR;
5b9c0671
NC
896 assert(GvHV(PL_hintgv));
897 } else if (!GvHV(PL_hintgv)) {
898 /* Need to add a new one manually, else gv_fetchpv() can
899 add one in this code:
900
901 if (SvTYPE(gv) == SVt_PVGV) {
902 if (add) {
903 GvMULTI_on(gv);
904 gv_init_sv(gv, sv_type);
905 if (*name=='!' && sv_type == SVt_PVHV && len==1)
906 require_errno(gv);
907 }
908 return gv;
909 }
910
911 and it won't have the magic set. */
912
913 HV *const hv = newHV();
914 hv_magic(hv, NULL, PERL_MAGIC_hints);
915 GvHV(PL_hintgv) = hv;
dfa41748 916 }
5b9c0671 917 assert(GvHV(PL_hintgv));
b3ac6de7 918 break;
cb50131a 919 case SAVEt_COMPPAD:
f3548bdc 920 PL_comppad = (PAD*)SSPOPPTR;
58ed4fbe 921 if (PL_comppad)
cb50131a
CB
922 PL_curpad = AvARRAY(PL_comppad);
923 else
4608196e 924 PL_curpad = NULL;
cb50131a 925 break;
c3564e5c
GS
926 case SAVEt_PADSV:
927 {
35a4481c 928 const PADOFFSET off = (PADOFFSET)SSPOPLONG;
c3564e5c
GS
929 ptr = SSPOPPTR;
930 if (ptr)
f3548bdc 931 AvARRAY((PAD*)ptr)[off] = (SV*)SSPOPPTR;
c3564e5c
GS
932 }
933 break;
8b7059b1
DM
934 case SAVEt_SAVESWITCHSTACK:
935 {
936 dSP;
7452cf6a
AL
937 AV* const t = (AV*)SSPOPPTR;
938 AV* const f = (AV*)SSPOPPTR;
8b7059b1
DM
939 SWITCHSTACK(t,f);
940 PL_curstackinfo->si_stack = f;
941 }
942 break;
14f338dc
DM
943 case SAVEt_SET_SVFLAGS:
944 {
35a4481c
AL
945 const U32 val = (U32)SSPOPINT;
946 const U32 mask = (U32)SSPOPINT;
14f338dc
DM
947 sv = (SV*)SSPOPPTR;
948 SvFLAGS(sv) &= ~mask;
949 SvFLAGS(sv) |= val;
950 }
951 break;
2053acbf
NC
952 /* These are only saved in mathoms.c */
953 case SAVEt_SVREF: /* scalar reference */
954 value = (SV*)SSPOPPTR;
955 ptr = SSPOPPTR;
956 av = NULL; /* what to refcnt_dec */
957 goto restore_sv;
958 case SAVEt_LONG: /* long reference */
959 ptr = SSPOPPTR;
960 *(long*)ptr = (long)SSPOPLONG;
961 break;
962 case SAVEt_I16: /* I16 reference */
963 ptr = SSPOPPTR;
964 *(I16*)ptr = (I16)SSPOPINT;
965 break;
966 case SAVEt_I8: /* I8 reference */
967 ptr = SSPOPPTR;
968 *(I8*)ptr = (I8)SSPOPINT;
969 break;
970 case SAVEt_IV: /* IV reference */
971 ptr = SSPOPPTR;
972 *(IV*)ptr = (IV)SSPOPIV;
973 break;
974 case SAVEt_NSTAB:
975 gv = (GV*)SSPOPPTR;
976 (void)sv_clear((SV*)gv);
977 break;
978 case SAVEt_DESTRUCTOR:
979 ptr = SSPOPPTR;
980 (*SSPOPDPTR)(ptr);
981 break;
fc15ae8f
NC
982 case SAVEt_COP_ARYBASE:
983 ptr = SSPOPPTR;
984 i = SSPOPINT;
985 CopARYBASE_set((COP *)ptr, i);
986 break;
68da3b2f
NC
987 case SAVEt_COMPILE_WARNINGS:
988 ptr = SSPOPPTR;
72dc9ed5 989
68da3b2f
NC
990 if (!specialWARN(PL_compiling.cop_warnings))
991 PerlMemShared_free(PL_compiling.cop_warnings);
72dc9ed5 992
10edeb5d 993 PL_compiling.cop_warnings = (STRLEN*)ptr;
72dc9ed5 994 break;
1ade1aa1
NC
995 case SAVEt_RE_STATE:
996 {
997 const struct re_save_state *const state
998 = (struct re_save_state *)
999 (PL_savestack + PL_savestack_ix
1000 - SAVESTACK_ALLOC_FOR_RE_SAVE_STATE);
1001 PL_savestack_ix -= SAVESTACK_ALLOC_FOR_RE_SAVE_STATE;
1002
1ade1aa1
NC
1003 if (PL_reg_start_tmp != state->re_state_reg_start_tmp) {
1004 Safefree(PL_reg_start_tmp);
1ade1aa1 1005 }
1ade1aa1
NC
1006 if (PL_reg_poscache != state->re_state_reg_poscache) {
1007 Safefree(PL_reg_poscache);
1ade1aa1 1008 }
46ab3289 1009 Copy(state, &PL_reg_state, 1, struct re_save_state);
1ade1aa1
NC
1010 }
1011 break;
7c197c94
DM
1012 case SAVEt_PARSER:
1013 ptr = SSPOPPTR;
1014 parser_free((yy_parser *) ptr);
1015 break;
79072805 1016 default:
cea2e8a9 1017 Perl_croak(aTHX_ "panic: leave_scope inconsistency");
79072805
LW
1018 }
1019 }
1020}
8990e307 1021
8990e307 1022void
864dbfa3 1023Perl_cx_dump(pTHX_ PERL_CONTEXT *cx)
8990e307 1024{
97aff369 1025 dVAR;
35ff7856 1026#ifdef DEBUGGING
22c35a8c 1027 PerlIO_printf(Perl_debug_log, "CX %ld = %s\n", (long)(cx - cxstack), PL_block_type[CxTYPE(cx)]);
6b35e009 1028 if (CxTYPE(cx) != CXt_SUBST) {
760ac839 1029 PerlIO_printf(Perl_debug_log, "BLK_OLDSP = %ld\n", (long)cx->blk_oldsp);
146174a9
CB
1030 PerlIO_printf(Perl_debug_log, "BLK_OLDCOP = 0x%"UVxf"\n",
1031 PTR2UV(cx->blk_oldcop));
760ac839
LW
1032 PerlIO_printf(Perl_debug_log, "BLK_OLDMARKSP = %ld\n", (long)cx->blk_oldmarksp);
1033 PerlIO_printf(Perl_debug_log, "BLK_OLDSCOPESP = %ld\n", (long)cx->blk_oldscopesp);
146174a9
CB
1034 PerlIO_printf(Perl_debug_log, "BLK_OLDPM = 0x%"UVxf"\n",
1035 PTR2UV(cx->blk_oldpm));
760ac839 1036 PerlIO_printf(Perl_debug_log, "BLK_GIMME = %s\n", cx->blk_gimme ? "LIST" : "SCALAR");
8990e307 1037 }
6b35e009 1038 switch (CxTYPE(cx)) {
8990e307
LW
1039 case CXt_NULL:
1040 case CXt_BLOCK:
1041 break;
146174a9
CB
1042 case CXt_FORMAT:
1043 PerlIO_printf(Perl_debug_log, "BLK_SUB.CV = 0x%"UVxf"\n",
1044 PTR2UV(cx->blk_sub.cv));
1045 PerlIO_printf(Perl_debug_log, "BLK_SUB.GV = 0x%"UVxf"\n",
1046 PTR2UV(cx->blk_sub.gv));
1047 PerlIO_printf(Perl_debug_log, "BLK_SUB.DFOUTGV = 0x%"UVxf"\n",
1048 PTR2UV(cx->blk_sub.dfoutgv));
1049 PerlIO_printf(Perl_debug_log, "BLK_SUB.HASARGS = %d\n",
cc8d50a7 1050 (int)cx->blk_sub.hasargs);
f39bc417
DM
1051 PerlIO_printf(Perl_debug_log, "BLK_SUB.RETOP = 0x%"UVxf"\n",
1052 PTR2UV(cx->blk_sub.retop));
146174a9 1053 break;
8990e307 1054 case CXt_SUB:
146174a9
CB
1055 PerlIO_printf(Perl_debug_log, "BLK_SUB.CV = 0x%"UVxf"\n",
1056 PTR2UV(cx->blk_sub.cv));
760ac839 1057 PerlIO_printf(Perl_debug_log, "BLK_SUB.OLDDEPTH = %ld\n",
8990e307 1058 (long)cx->blk_sub.olddepth);
760ac839 1059 PerlIO_printf(Perl_debug_log, "BLK_SUB.HASARGS = %d\n",
cc8d50a7 1060 (int)cx->blk_sub.hasargs);
146174a9 1061 PerlIO_printf(Perl_debug_log, "BLK_SUB.LVAL = %d\n",
cc8d50a7 1062 (int)cx->blk_sub.lval);
f39bc417
DM
1063 PerlIO_printf(Perl_debug_log, "BLK_SUB.RETOP = 0x%"UVxf"\n",
1064 PTR2UV(cx->blk_sub.retop));
8990e307
LW
1065 break;
1066 case CXt_EVAL:
760ac839 1067 PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_IN_EVAL = %ld\n",
8990e307 1068 (long)cx->blk_eval.old_in_eval);
760ac839 1069 PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_OP_TYPE = %s (%s)\n",
22c35a8c
GS
1070 PL_op_name[cx->blk_eval.old_op_type],
1071 PL_op_desc[cx->blk_eval.old_op_type]);
0f79a09d
GS
1072 if (cx->blk_eval.old_namesv)
1073 PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_NAME = %s\n",
aa07b2f6 1074 SvPVX_const(cx->blk_eval.old_namesv));
146174a9
CB
1075 PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_EVAL_ROOT = 0x%"UVxf"\n",
1076 PTR2UV(cx->blk_eval.old_eval_root));
f39bc417
DM
1077 PerlIO_printf(Perl_debug_log, "BLK_EVAL.RETOP = 0x%"UVxf"\n",
1078 PTR2UV(cx->blk_eval.retop));
8990e307
LW
1079 break;
1080
1081 case CXt_LOOP:
760ac839 1082 PerlIO_printf(Perl_debug_log, "BLK_LOOP.LABEL = %s\n",
8990e307 1083 cx->blk_loop.label);
760ac839 1084 PerlIO_printf(Perl_debug_log, "BLK_LOOP.RESETSP = %ld\n",
8990e307 1085 (long)cx->blk_loop.resetsp);
022eaa24
NC
1086 PerlIO_printf(Perl_debug_log, "BLK_LOOP.MY_OP = 0x%"UVxf"\n",
1087 PTR2UV(cx->blk_loop.my_op));
146174a9 1088 PerlIO_printf(Perl_debug_log, "BLK_LOOP.NEXT_OP = 0x%"UVxf"\n",
022eaa24 1089 PTR2UV(CX_LOOP_NEXTOP_GET(cx)));
760ac839 1090 PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERIX = %ld\n",
8990e307 1091 (long)cx->blk_loop.iterix);
146174a9
CB
1092 PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERARY = 0x%"UVxf"\n",
1093 PTR2UV(cx->blk_loop.iterary));
1094 PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERVAR = 0x%"UVxf"\n",
1095 PTR2UV(CxITERVAR(cx)));
1096 if (CxITERVAR(cx))
1097 PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERSAVE = 0x%"UVxf"\n",
1098 PTR2UV(cx->blk_loop.itersave));
1099 PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERLVAL = 0x%"UVxf"\n",
1100 PTR2UV(cx->blk_loop.iterlval));
8990e307
LW
1101 break;
1102
1103 case CXt_SUBST:
760ac839 1104 PerlIO_printf(Perl_debug_log, "SB_ITERS = %ld\n",
8990e307 1105 (long)cx->sb_iters);
760ac839 1106 PerlIO_printf(Perl_debug_log, "SB_MAXITERS = %ld\n",
8990e307 1107 (long)cx->sb_maxiters);
35ef4773
GS
1108 PerlIO_printf(Perl_debug_log, "SB_RFLAGS = %ld\n",
1109 (long)cx->sb_rflags);
760ac839 1110 PerlIO_printf(Perl_debug_log, "SB_ONCE = %ld\n",
8990e307 1111 (long)cx->sb_once);
760ac839 1112 PerlIO_printf(Perl_debug_log, "SB_ORIG = %s\n",
8990e307 1113 cx->sb_orig);
146174a9
CB
1114 PerlIO_printf(Perl_debug_log, "SB_DSTR = 0x%"UVxf"\n",
1115 PTR2UV(cx->sb_dstr));
1116 PerlIO_printf(Perl_debug_log, "SB_TARG = 0x%"UVxf"\n",
1117 PTR2UV(cx->sb_targ));
1118 PerlIO_printf(Perl_debug_log, "SB_S = 0x%"UVxf"\n",
1119 PTR2UV(cx->sb_s));
1120 PerlIO_printf(Perl_debug_log, "SB_M = 0x%"UVxf"\n",
1121 PTR2UV(cx->sb_m));
1122 PerlIO_printf(Perl_debug_log, "SB_STREND = 0x%"UVxf"\n",
1123 PTR2UV(cx->sb_strend));
1124 PerlIO_printf(Perl_debug_log, "SB_RXRES = 0x%"UVxf"\n",
1125 PTR2UV(cx->sb_rxres));
8990e307
LW
1126 break;
1127 }
65e66c80 1128#else
96a5add6 1129 PERL_UNUSED_CONTEXT;
65e66c80 1130 PERL_UNUSED_ARG(cx);
17c3b450 1131#endif /* DEBUGGING */
35ff7856 1132}
241d1a3b
NC
1133
1134/*
1135 * Local variables:
1136 * c-indentation-style: bsd
1137 * c-basic-offset: 4
1138 * indent-tabs-mode: t
1139 * End:
1140 *
37442d52
RGS
1141 * ex: set ts=8 sts=4 sw=4 noet:
1142 */