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Add CLONE_SKIP() class method to allow individual classes to skip
[perl5.git] / scope.c
CommitLineData
a0d0e21e 1/* scope.c
79072805 2 *
4bb101f2 3 * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
241d1a3b 4 * 2000, 2001, 2002, 2003, 2004, 2005, 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{
3280af22 30 PL_stack_sp = sp;
2ce36478 31#ifndef STRESS_REALLOC
3280af22 32 av_extend(PL_curstack, (p - PL_stack_base) + (n) + 128);
2ce36478 33#else
6b88bc9c 34 av_extend(PL_curstack, (p - PL_stack_base) + (n) + 1);
2ce36478 35#endif
3280af22 36 return PL_stack_sp;
a0d0e21e
LW
37}
38
2ce36478
SM
39#ifndef STRESS_REALLOC
40#define GROW(old) ((old) * 3 / 2)
41#else
42#define GROW(old) ((old) + 1)
43#endif
44
e336de0d 45PERL_SI *
864dbfa3 46Perl_new_stackinfo(pTHX_ I32 stitems, I32 cxitems)
e336de0d
GS
47{
48 PERL_SI *si;
e336de0d
GS
49 New(56, si, 1, PERL_SI);
50 si->si_stack = newAV();
51 AvREAL_off(si->si_stack);
52 av_extend(si->si_stack, stitems > 0 ? stitems-1 : 0);
3280af22 53 AvALLOC(si->si_stack)[0] = &PL_sv_undef;
e336de0d
GS
54 AvFILLp(si->si_stack) = 0;
55 si->si_prev = 0;
56 si->si_next = 0;
57 si->si_cxmax = cxitems - 1;
58 si->si_cxix = -1;
e788e7d3 59 si->si_type = PERLSI_UNDEF;
9965345d
JH
60 New(56, si->si_cxstack, cxitems, PERL_CONTEXT);
61 /* Without any kind of initialising PUSHSUBST()
62 * in pp_subst() will read uninitialised heap. */
63 Poison(si->si_cxstack, cxitems, PERL_CONTEXT);
e336de0d
GS
64 return si;
65}
66
79072805 67I32
864dbfa3 68Perl_cxinc(pTHX)
79072805 69{
4fc93207 70 IV old_max = cxstack_max;
2ce36478 71 cxstack_max = GROW(cxstack_max);
c09156bb 72 Renew(cxstack, cxstack_max + 1, PERL_CONTEXT); /* XXX should fix CXINC macro */
9965345d
JH
73 /* Without any kind of initialising deep enough recursion
74 * will end up reading uninitialised PERL_CONTEXTs. */
75 Poison(cxstack + old_max + 1, cxstack_max - old_max, PERL_CONTEXT);
79072805
LW
76 return cxstack_ix + 1;
77}
78
79072805 79void
864dbfa3 80Perl_push_scope(pTHX)
79072805 81{
3280af22
NIS
82 if (PL_scopestack_ix == PL_scopestack_max) {
83 PL_scopestack_max = GROW(PL_scopestack_max);
84 Renew(PL_scopestack, PL_scopestack_max, I32);
79072805 85 }
3280af22 86 PL_scopestack[PL_scopestack_ix++] = PL_savestack_ix;
79072805
LW
87
88}
89
90void
864dbfa3 91Perl_pop_scope(pTHX)
79072805 92{
35a4481c 93 const I32 oldsave = PL_scopestack[--PL_scopestack_ix];
8990e307 94 LEAVE_SCOPE(oldsave);
79072805
LW
95}
96
97void
864dbfa3 98Perl_markstack_grow(pTHX)
a0d0e21e 99{
35a4481c
AL
100 const I32 oldmax = PL_markstack_max - PL_markstack;
101 const I32 newmax = GROW(oldmax);
a0d0e21e 102
3280af22
NIS
103 Renew(PL_markstack, newmax, I32);
104 PL_markstack_ptr = PL_markstack + oldmax;
105 PL_markstack_max = PL_markstack + newmax;
a0d0e21e
LW
106}
107
108void
864dbfa3 109Perl_savestack_grow(pTHX)
79072805 110{
8aacddc1 111 PL_savestack_max = GROW(PL_savestack_max) + 4;
3280af22 112 Renew(PL_savestack, PL_savestack_max, ANY);
79072805
LW
113}
114
4b3c1a47
AE
115void
116Perl_savestack_grow_cnt(pTHX_ I32 need)
117{
118 PL_savestack_max = PL_savestack_ix + need;
119 Renew(PL_savestack, PL_savestack_max, ANY);
120}
121
2ce36478
SM
122#undef GROW
123
79072805 124void
864dbfa3 125Perl_tmps_grow(pTHX_ I32 n)
677b06e3 126{
677b06e3
GS
127#ifndef STRESS_REALLOC
128 if (n < 128)
129 n = (PL_tmps_max < 512) ? 128 : 512;
130#endif
131 PL_tmps_max = PL_tmps_ix + n + 1;
132 Renew(PL_tmps_stack, PL_tmps_max, SV*);
133}
134
135
136void
864dbfa3 137Perl_free_tmps(pTHX)
79072805
LW
138{
139 /* XXX should tmps_floor live in cxstack? */
35a4481c 140 const I32 myfloor = PL_tmps_floor;
3280af22
NIS
141 while (PL_tmps_ix > myfloor) { /* clean up after last statement */
142 SV* sv = PL_tmps_stack[PL_tmps_ix];
143 PL_tmps_stack[PL_tmps_ix--] = Nullsv;
8aacddc1 144 if (sv && sv != &PL_sv_undef) {
463ee0b2 145 SvTEMP_off(sv);
8990e307 146 SvREFCNT_dec(sv); /* note, can modify tmps_ix!!! */
463ee0b2 147 }
79072805
LW
148 }
149}
150
76e3520e 151STATIC SV *
cea2e8a9 152S_save_scalar_at(pTHX_ SV **sptr)
79072805
LW
153{
154 register SV *sv;
7a4c00b4 155 SV *osv = *sptr;
79072805 156
7a4c00b4 157 sv = *sptr = NEWSV(0,0);
a0d0e21e 158 if (SvTYPE(osv) >= SVt_PVMG && SvMAGIC(osv) && SvTYPE(osv) != SVt_PVGV) {
ac117f44 159 MAGIC *mg;
79072805 160 sv_upgrade(sv, SvTYPE(osv));
a0d0e21e 161 if (SvGMAGICAL(osv)) {
35a4481c 162 const bool oldtainted = PL_tainted;
5cfc7842 163 mg_get(osv); /* note, can croak! */
14befaf4
DM
164 if (PL_tainting && PL_tainted &&
165 (mg = mg_find(osv, PERL_MAGIC_taint))) {
748a9306
LW
166 SAVESPTR(mg->mg_obj);
167 mg->mg_obj = osv;
168 }
a0d0e21e 169 SvFLAGS(osv) |= (SvFLAGS(osv) &
8aacddc1 170 (SVp_NOK|SVp_POK)) >> PRIVSHIFT;
3280af22 171 PL_tainted = oldtainted;
a0d0e21e 172 }
79072805 173 SvMAGIC(sv) = SvMAGIC(osv);
ac117f44
RGS
174 /* if it's a special scalar or if it has no 'set' magic,
175 * propagate the SvREADONLY flag. --rgs 20030922 */
176 for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) {
dda0e828
RGS
177 if (mg->mg_type == '\0'
178 || !(mg->mg_virtual && mg->mg_virtual->svt_set))
ac117f44
RGS
179 {
180 SvFLAGS(sv) |= SvREADONLY(osv);
181 break;
182 }
183 }
184 SvFLAGS(sv) |= SvMAGICAL(osv);
2d5e9e5d
JH
185 /* XXX SvMAGIC() is *shared* between osv and sv. This can
186 * lead to coredumps when both SVs are destroyed without one
187 * of their SvMAGIC() slots being NULLed. */
3280af22 188 PL_localizing = 1;
79072805 189 SvSETMAGIC(sv);
3280af22 190 PL_localizing = 0;
79072805
LW
191 }
192 return sv;
193}
194
7a4c00b4 195SV *
864dbfa3 196Perl_save_scalar(pTHX_ GV *gv)
7a4c00b4 197{
4e4c362e 198 SV **sptr = &GvSV(gv);
7a4c00b4 199 SSCHECK(3);
4e4c362e
GS
200 SSPUSHPTR(SvREFCNT_inc(gv));
201 SSPUSHPTR(SvREFCNT_inc(*sptr));
7a4c00b4 202 SSPUSHINT(SAVEt_SV);
4e4c362e 203 return save_scalar_at(sptr);
7a4c00b4
PP
204}
205
206SV*
864dbfa3 207Perl_save_svref(pTHX_ SV **sptr)
7a4c00b4
PP
208{
209 SSCHECK(3);
210 SSPUSHPTR(sptr);
4e4c362e 211 SSPUSHPTR(SvREFCNT_inc(*sptr));
7a4c00b4
PP
212 SSPUSHINT(SAVEt_SVREF);
213 return save_scalar_at(sptr);
214}
215
f4dd75d9 216/* Like save_sptr(), but also SvREFCNT_dec()s the new value. Can be used to
b9d12d37
GS
217 * restore a global SV to its prior contents, freeing new value. */
218void
864dbfa3 219Perl_save_generic_svref(pTHX_ SV **sptr)
b9d12d37 220{
b9d12d37
GS
221 SSCHECK(3);
222 SSPUSHPTR(sptr);
223 SSPUSHPTR(SvREFCNT_inc(*sptr));
224 SSPUSHINT(SAVEt_GENERIC_SVREF);
225}
226
f4dd75d9
GS
227/* Like save_pptr(), but also Safefree()s the new value if it is different
228 * from the old one. Can be used to restore a global char* to its prior
229 * contents, freeing new value. */
230void
231Perl_save_generic_pvref(pTHX_ char **str)
232{
f4dd75d9
GS
233 SSCHECK(3);
234 SSPUSHPTR(str);
235 SSPUSHPTR(*str);
236 SSPUSHINT(SAVEt_GENERIC_PVREF);
237}
238
05ec9bb3
NIS
239/* Like save_generic_pvref(), but uses PerlMemShared_free() rather than Safefree().
240 * Can be used to restore a shared global char* to its prior
241 * contents, freeing new value. */
242void
243Perl_save_shared_pvref(pTHX_ char **str)
244{
245 SSCHECK(3);
246 SSPUSHPTR(str);
247 SSPUSHPTR(*str);
248 SSPUSHINT(SAVEt_SHARED_PVREF);
249}
250
14f338dc
DM
251/* set the SvFLAGS specified by mask to the values in val */
252
253void
254Perl_save_set_svflags(pTHX_ SV* sv, U32 mask, U32 val)
255{
256 SSCHECK(4);
257 SSPUSHPTR(sv);
258 SSPUSHINT(mask);
259 SSPUSHINT(val);
260 SSPUSHINT(SAVEt_SET_SVFLAGS);
261}
262
79072805 263void
864dbfa3 264Perl_save_gp(pTHX_ GV *gv, I32 empty)
79072805 265{
4b3c1a47 266 SSGROW(6);
fb73857a
PP
267 SSPUSHIV((IV)SvLEN(gv));
268 SvLEN(gv) = 0; /* forget that anything was allocated here */
269 SSPUSHIV((IV)SvCUR(gv));
270 SSPUSHPTR(SvPVX(gv));
271 SvPOK_off(gv);
4633a7c4 272 SSPUSHPTR(SvREFCNT_inc(gv));
5f05dabc 273 SSPUSHPTR(GvGP(gv));
79072805
LW
274 SSPUSHINT(SAVEt_GP);
275
5f05dabc
PP
276 if (empty) {
277 register GP *gp;
fae75791 278
146174a9
CB
279 Newz(602, gp, 1, GP);
280
fae75791 281 if (GvCVu(gv))
3280af22 282 PL_sub_generation++; /* taking a method out of circulation */
146174a9
CB
283 if (GvIOp(gv) && (IoFLAGS(GvIOp(gv)) & IOf_ARGV)) {
284 gp->gp_io = newIO();
285 IoFLAGS(gp->gp_io) |= IOf_ARGV|IOf_START;
286 }
44a8e56a 287 GvGP(gv) = gp_ref(gp);
5f05dabc 288 GvSV(gv) = NEWSV(72,0);
146174a9 289 GvLINE(gv) = CopLINE(PL_curcop);
07409e01
NC
290 /* XXX Ideally this cast would be replaced with a change to const char*
291 in the struct. */
292 GvFILE(gv) = CopFILE(PL_curcop) ? CopFILE(PL_curcop) : (char *) "";
5f05dabc
PP
293 GvEGV(gv) = gv;
294 }
295 else {
44a8e56a 296 gp_ref(GvGP(gv));
5f05dabc
PP
297 GvINTRO_on(gv);
298 }
79072805 299}
79072805 300
79072805 301AV *
864dbfa3 302Perl_save_ary(pTHX_ GV *gv)
79072805 303{
67a38de0
NIS
304 AV *oav = GvAVn(gv);
305 AV *av;
fb73857a 306
67a38de0
NIS
307 if (!AvREAL(oav) && AvREIFY(oav))
308 av_reify(oav);
79072805
LW
309 SSCHECK(3);
310 SSPUSHPTR(gv);
67a38de0 311 SSPUSHPTR(oav);
79072805
LW
312 SSPUSHINT(SAVEt_AV);
313
314 GvAV(gv) = Null(AV*);
fb73857a
PP
315 av = GvAVn(gv);
316 if (SvMAGIC(oav)) {
317 SvMAGIC(av) = SvMAGIC(oav);
32da55ab 318 SvFLAGS((SV*)av) |= SvMAGICAL(oav);
fb73857a
PP
319 SvMAGICAL_off(oav);
320 SvMAGIC(oav) = 0;
3280af22 321 PL_localizing = 1;
fb73857a 322 SvSETMAGIC((SV*)av);
3280af22 323 PL_localizing = 0;
fb73857a
PP
324 }
325 return av;
79072805
LW
326}
327
328HV *
864dbfa3 329Perl_save_hash(pTHX_ GV *gv)
79072805 330{
fb73857a
PP
331 HV *ohv, *hv;
332
79072805
LW
333 SSCHECK(3);
334 SSPUSHPTR(gv);
fb73857a 335 SSPUSHPTR(ohv = GvHVn(gv));
79072805
LW
336 SSPUSHINT(SAVEt_HV);
337
338 GvHV(gv) = Null(HV*);
fb73857a
PP
339 hv = GvHVn(gv);
340 if (SvMAGIC(ohv)) {
341 SvMAGIC(hv) = SvMAGIC(ohv);
32da55ab 342 SvFLAGS((SV*)hv) |= SvMAGICAL(ohv);
fb73857a
PP
343 SvMAGICAL_off(ohv);
344 SvMAGIC(ohv) = 0;
3280af22 345 PL_localizing = 1;
fb73857a 346 SvSETMAGIC((SV*)hv);
3280af22 347 PL_localizing = 0;
fb73857a
PP
348 }
349 return hv;
79072805
LW
350}
351
352void
864dbfa3 353Perl_save_item(pTHX_ register SV *item)
79072805 354{
f2b990bf 355 register SV *sv = newSVsv(item);
79072805
LW
356
357 SSCHECK(3);
358 SSPUSHPTR(item); /* remember the pointer */
79072805
LW
359 SSPUSHPTR(sv); /* remember the value */
360 SSPUSHINT(SAVEt_ITEM);
361}
362
363void
864dbfa3 364Perl_save_int(pTHX_ int *intp)
79072805
LW
365{
366 SSCHECK(3);
367 SSPUSHINT(*intp);
368 SSPUSHPTR(intp);
369 SSPUSHINT(SAVEt_INT);
370}
371
372void
864dbfa3 373Perl_save_long(pTHX_ long int *longp)
85e6fe83
LW
374{
375 SSCHECK(3);
376 SSPUSHLONG(*longp);
377 SSPUSHPTR(longp);
378 SSPUSHINT(SAVEt_LONG);
379}
380
381void
9febdf04
RH
382Perl_save_bool(pTHX_ bool *boolp)
383{
384 SSCHECK(3);
385 SSPUSHBOOL(*boolp);
386 SSPUSHPTR(boolp);
387 SSPUSHINT(SAVEt_BOOL);
388}
389
390void
864dbfa3 391Perl_save_I32(pTHX_ I32 *intp)
79072805
LW
392{
393 SSCHECK(3);
394 SSPUSHINT(*intp);
395 SSPUSHPTR(intp);
396 SSPUSHINT(SAVEt_I32);
397}
398
a0d0e21e 399void
864dbfa3 400Perl_save_I16(pTHX_ I16 *intp)
55497cff
PP
401{
402 SSCHECK(3);
403 SSPUSHINT(*intp);
404 SSPUSHPTR(intp);
405 SSPUSHINT(SAVEt_I16);
406}
407
408void
146174a9
CB
409Perl_save_I8(pTHX_ I8 *bytep)
410{
146174a9
CB
411 SSCHECK(3);
412 SSPUSHINT(*bytep);
413 SSPUSHPTR(bytep);
414 SSPUSHINT(SAVEt_I8);
415}
416
417void
864dbfa3 418Perl_save_iv(pTHX_ IV *ivp)
a0d0e21e
LW
419{
420 SSCHECK(3);
4aa0a1f7 421 SSPUSHIV(*ivp);
a0d0e21e
LW
422 SSPUSHPTR(ivp);
423 SSPUSHINT(SAVEt_IV);
424}
425
85e6fe83
LW
426/* Cannot use save_sptr() to store a char* since the SV** cast will
427 * force word-alignment and we'll miss the pointer.
428 */
429void
864dbfa3 430Perl_save_pptr(pTHX_ char **pptr)
85e6fe83
LW
431{
432 SSCHECK(3);
433 SSPUSHPTR(*pptr);
434 SSPUSHPTR(pptr);
435 SSPUSHINT(SAVEt_PPTR);
436}
437
79072805 438void
146174a9
CB
439Perl_save_vptr(pTHX_ void *ptr)
440{
146174a9
CB
441 SSCHECK(3);
442 SSPUSHPTR(*(char**)ptr);
443 SSPUSHPTR(ptr);
444 SSPUSHINT(SAVEt_VPTR);
445}
446
447void
864dbfa3 448Perl_save_sptr(pTHX_ SV **sptr)
79072805
LW
449{
450 SSCHECK(3);
451 SSPUSHPTR(*sptr);
452 SSPUSHPTR(sptr);
453 SSPUSHINT(SAVEt_SPTR);
454}
455
c3564e5c
GS
456void
457Perl_save_padsv(pTHX_ PADOFFSET off)
458{
c3564e5c 459 SSCHECK(4);
f3548bdc 460 ASSERT_CURPAD_ACTIVE("save_padsv");
c3564e5c 461 SSPUSHPTR(PL_curpad[off]);
f3548bdc 462 SSPUSHPTR(PL_comppad);
c3564e5c
GS
463 SSPUSHLONG((long)off);
464 SSPUSHINT(SAVEt_PADSV);
465}
466
54b9620d 467SV **
864dbfa3 468Perl_save_threadsv(pTHX_ PADOFFSET i)
54b9620d 469{
cea2e8a9 470 Perl_croak(aTHX_ "panic: save_threadsv called in non-threaded perl");
73d840c0 471 (void)i;
3c8a6f86
NC
472#ifndef HASATTRIBUTE
473 /* No __attribute__, so the compiler doesn't know that croak never returns
474 */
54b9620d 475 return 0;
3c8a6f86 476#endif
54b9620d
MB
477}
478
79072805 479void
864dbfa3 480Perl_save_nogv(pTHX_ GV *gv)
79072805
LW
481{
482 SSCHECK(2);
483 SSPUSHPTR(gv);
484 SSPUSHINT(SAVEt_NSTAB);
485}
486
487void
864dbfa3 488Perl_save_hptr(pTHX_ HV **hptr)
79072805
LW
489{
490 SSCHECK(3);
85e6fe83 491 SSPUSHPTR(*hptr);
79072805
LW
492 SSPUSHPTR(hptr);
493 SSPUSHINT(SAVEt_HPTR);
494}
495
496void
864dbfa3 497Perl_save_aptr(pTHX_ AV **aptr)
79072805
LW
498{
499 SSCHECK(3);
85e6fe83 500 SSPUSHPTR(*aptr);
79072805
LW
501 SSPUSHPTR(aptr);
502 SSPUSHINT(SAVEt_APTR);
503}
504
505void
864dbfa3 506Perl_save_freesv(pTHX_ SV *sv)
8990e307
LW
507{
508 SSCHECK(2);
509 SSPUSHPTR(sv);
510 SSPUSHINT(SAVEt_FREESV);
511}
512
513void
26d9b02f
JH
514Perl_save_mortalizesv(pTHX_ SV *sv)
515{
516 SSCHECK(2);
517 SSPUSHPTR(sv);
518 SSPUSHINT(SAVEt_MORTALIZESV);
519}
520
521void
864dbfa3 522Perl_save_freeop(pTHX_ OP *o)
8990e307
LW
523{
524 SSCHECK(2);
11343788 525 SSPUSHPTR(o);
8990e307
LW
526 SSPUSHINT(SAVEt_FREEOP);
527}
528
529void
864dbfa3 530Perl_save_freepv(pTHX_ char *pv)
8990e307
LW
531{
532 SSCHECK(2);
533 SSPUSHPTR(pv);
534 SSPUSHINT(SAVEt_FREEPV);
535}
536
537void
864dbfa3 538Perl_save_clearsv(pTHX_ SV **svp)
8990e307 539{
f3548bdc 540 ASSERT_CURPAD_ACTIVE("save_clearsv");
8990e307 541 SSCHECK(2);
3280af22 542 SSPUSHLONG((long)(svp-PL_curpad));
8990e307 543 SSPUSHINT(SAVEt_CLEARSV);
d9d18af6 544 SvPADSTALE_off(*svp); /* mark lexical as active */
8990e307
LW
545}
546
547void
864dbfa3 548Perl_save_delete(pTHX_ HV *hv, char *key, I32 klen)
8990e307
LW
549{
550 SSCHECK(4);
551 SSPUSHINT(klen);
552 SSPUSHPTR(key);
4e4c362e 553 SSPUSHPTR(SvREFCNT_inc(hv));
8990e307
LW
554 SSPUSHINT(SAVEt_DELETE);
555}
556
557void
864dbfa3 558Perl_save_list(pTHX_ register SV **sarg, I32 maxsarg)
79072805
LW
559{
560 register SV *sv;
561 register I32 i;
562
79072805 563 for (i = 1; i <= maxsarg; i++) {
79072805
LW
564 sv = NEWSV(0,0);
565 sv_setsv(sv,sarg[i]);
f46d017c
GS
566 SSCHECK(3);
567 SSPUSHPTR(sarg[i]); /* remember the pointer */
79072805
LW
568 SSPUSHPTR(sv); /* remember the value */
569 SSPUSHINT(SAVEt_ITEM);
570 }
571}
572
573void
146174a9 574Perl_save_destructor(pTHX_ DESTRUCTORFUNC_NOCONTEXT_t f, void* p)
a0d0e21e
LW
575{
576 SSCHECK(3);
577 SSPUSHDPTR(f);
578 SSPUSHPTR(p);
579 SSPUSHINT(SAVEt_DESTRUCTOR);
580}
581
582void
146174a9
CB
583Perl_save_destructor_x(pTHX_ DESTRUCTORFUNC_t f, void* p)
584{
146174a9
CB
585 SSCHECK(3);
586 SSPUSHDXPTR(f);
587 SSPUSHPTR(p);
588 SSPUSHINT(SAVEt_DESTRUCTOR_X);
589}
590
591void
35a4481c 592Perl_save_aelem(pTHX_ const AV *av, I32 idx, SV **sptr)
4e4c362e 593{
bfc4de9f 594 SV *sv;
4e4c362e
GS
595 SSCHECK(4);
596 SSPUSHPTR(SvREFCNT_inc(av));
597 SSPUSHINT(idx);
598 SSPUSHPTR(SvREFCNT_inc(*sptr));
599 SSPUSHINT(SAVEt_AELEM);
5dd42e15
DM
600 /* if it gets reified later, the restore will have the wrong refcnt */
601 if (!AvREAL(av) && AvREIFY(av))
7fc63493 602 (void)SvREFCNT_inc(*sptr);
4e4c362e 603 save_scalar_at(sptr);
bfc4de9f
DM
604 sv = *sptr;
605 /* If we're localizing a tied array element, this new sv
606 * won't actually be stored in the array - so it won't get
607 * reaped when the localize ends. Ensure it gets reaped by
608 * mortifying it instead. DAPM */
609 if (SvTIED_mg(sv, PERL_MAGIC_tiedelem))
610 sv_2mortal(sv);
4e4c362e
GS
611}
612
613void
e1ec3a88 614Perl_save_helem(pTHX_ HV *hv, SV *key, SV **sptr)
4e4c362e 615{
bfc4de9f 616 SV *sv;
4e4c362e
GS
617 SSCHECK(4);
618 SSPUSHPTR(SvREFCNT_inc(hv));
619 SSPUSHPTR(SvREFCNT_inc(key));
620 SSPUSHPTR(SvREFCNT_inc(*sptr));
621 SSPUSHINT(SAVEt_HELEM);
622 save_scalar_at(sptr);
bfc4de9f
DM
623 sv = *sptr;
624 /* If we're localizing a tied hash element, this new sv
625 * won't actually be stored in the hash - so it won't get
626 * reaped when the localize ends. Ensure it gets reaped by
627 * mortifying it instead. DAPM */
628 if (SvTIED_mg(sv, PERL_MAGIC_tiedelem))
629 sv_2mortal(sv);
4e4c362e
GS
630}
631
632void
864dbfa3 633Perl_save_op(pTHX)
462e5cf6 634{
462e5cf6 635 SSCHECK(2);
533c011a 636 SSPUSHPTR(PL_op);
462e5cf6
MB
637 SSPUSHINT(SAVEt_OP);
638}
639
455ece5e 640I32
864dbfa3 641Perl_save_alloc(pTHX_ I32 size, I32 pad)
455ece5e 642{
35a4481c 643 register const I32 start = pad + ((char*)&PL_savestack[PL_savestack_ix]
8aacddc1 644 - (char*)PL_savestack);
35a4481c 645 register const I32 elems = 1 + ((size + pad - 1) / sizeof(*PL_savestack));
455ece5e
AD
646
647 /* SSCHECK may not be good enough */
648 while (PL_savestack_ix + elems + 2 > PL_savestack_max)
8aacddc1 649 savestack_grow();
455ece5e
AD
650
651 PL_savestack_ix += elems;
652 SSPUSHINT(elems);
653 SSPUSHINT(SAVEt_ALLOC);
654 return start;
655}
656
462e5cf6 657void
864dbfa3 658Perl_leave_scope(pTHX_ I32 base)
79072805
LW
659{
660 register SV *sv;
661 register SV *value;
662 register GV *gv;
663 register AV *av;
664 register HV *hv;
665 register void* ptr;
f4dd75d9 666 register char* str;
161b7d16 667 I32 i;
79072805
LW
668
669 if (base < -1)
cea2e8a9 670 Perl_croak(aTHX_ "panic: corrupt saved stack index");
3280af22 671 while (PL_savestack_ix > base) {
79072805
LW
672 switch (SSPOPINT) {
673 case SAVEt_ITEM: /* normal string */
674 value = (SV*)SSPOPPTR;
675 sv = (SV*)SSPOPPTR;
676 sv_replace(sv,value);
3280af22 677 PL_localizing = 2;
79072805 678 SvSETMAGIC(sv);
3280af22 679 PL_localizing = 0;
79072805 680 break;
8aacddc1 681 case SAVEt_SV: /* scalar reference */
79072805
LW
682 value = (SV*)SSPOPPTR;
683 gv = (GV*)SSPOPPTR;
7a4c00b4 684 ptr = &GvSV(gv);
5dd42e15 685 av = (AV*)gv; /* what to refcnt_dec */
7a4c00b4 686 goto restore_sv;
8aacddc1 687 case SAVEt_GENERIC_PVREF: /* generic pv */
f4dd75d9
GS
688 str = (char*)SSPOPPTR;
689 ptr = SSPOPPTR;
690 if (*(char**)ptr != str) {
691 Safefree(*(char**)ptr);
692 *(char**)ptr = str;
693 }
694 break;
05ec9bb3
NIS
695 case SAVEt_SHARED_PVREF: /* shared pv */
696 str = (char*)SSPOPPTR;
697 ptr = SSPOPPTR;
698 if (*(char**)ptr != str) {
5e54c26f 699#ifdef NETWARE
9ecbcc42 700 PerlMem_free(*(char**)ptr);
5e54c26f 701#else
05ec9bb3 702 PerlMemShared_free(*(char**)ptr);
5e54c26f 703#endif
05ec9bb3
NIS
704 *(char**)ptr = str;
705 }
706 break;
8aacddc1 707 case SAVEt_GENERIC_SVREF: /* generic sv */
b9d12d37
GS
708 value = (SV*)SSPOPPTR;
709 ptr = SSPOPPTR;
f4dd75d9
GS
710 sv = *(SV**)ptr;
711 *(SV**)ptr = value;
712 SvREFCNT_dec(sv);
b9d12d37
GS
713 SvREFCNT_dec(value);
714 break;
8aacddc1 715 case SAVEt_SVREF: /* scalar reference */
7a4c00b4 716 value = (SV*)SSPOPPTR;
79072805 717 ptr = SSPOPPTR;
5dd42e15 718 av = Nullav; /* what to refcnt_dec */
7a4c00b4 719 restore_sv:
79072805 720 sv = *(SV**)ptr;
146174a9 721 DEBUG_S(PerlIO_printf(Perl_debug_log,
54b9620d 722 "restore svref: %p %p:%s -> %p:%s\n",
8aacddc1 723 ptr, sv, SvPEEK(sv), value, SvPEEK(value)));
cdec4f49
JH
724 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv) &&
725 SvTYPE(sv) != SVt_PVGV)
726 {
a0d0e21e
LW
727 (void)SvUPGRADE(value, SvTYPE(sv));
728 SvMAGIC(value) = SvMAGIC(sv);
729 SvFLAGS(value) |= SvMAGICAL(sv);
730 SvMAGICAL_off(sv);
79072805 731 SvMAGIC(sv) = 0;
a0d0e21e 732 }
2d5e9e5d
JH
733 /* XXX This branch is pretty bogus. This code irretrievably
734 * clears(!) the magic on the SV (either to avoid further
735 * croaking that might ensue when the SvSETMAGIC() below is
736 * called, or to avoid two different SVs pointing at the same
737 * SvMAGIC()). This needs a total rethink. --GSAR */
cdec4f49
JH
738 else if (SvTYPE(value) >= SVt_PVMG && SvMAGIC(value) &&
739 SvTYPE(value) != SVt_PVGV)
740 {
7a4c00b4 741 SvFLAGS(value) |= (SvFLAGS(value) &
8aacddc1 742 (SVp_NOK|SVp_POK)) >> PRIVSHIFT;
7a4c00b4 743 SvMAGICAL_off(value);
2d5e9e5d
JH
744 /* XXX this is a leak when we get here because the
745 * mg_get() in save_scalar_at() croaked */
746 SvMAGIC(value) = 0;
7a4c00b4 747 }
a0d0e21e 748 *(SV**)ptr = value;
db733481 749 SvREFCNT_dec(sv);
3280af22 750 PL_localizing = 2;
a0d0e21e 751 SvSETMAGIC(value);
3280af22 752 PL_localizing = 0;
4e4c362e 753 SvREFCNT_dec(value);
5dd42e15
DM
754 if (av) /* actually an av, hv or gv */
755 SvREFCNT_dec(av);
8aacddc1
NIS
756 break;
757 case SAVEt_AV: /* array reference */
79072805
LW
758 av = (AV*)SSPOPPTR;
759 gv = (GV*)SSPOPPTR;
fb73857a 760 if (GvAV(gv)) {
35a4481c 761 AV * const goner = GvAV(gv);
fb73857a 762 SvMAGIC(av) = SvMAGIC(goner);
32da55ab 763 SvFLAGS((SV*)av) |= SvMAGICAL(goner);
fb73857a
PP
764 SvMAGICAL_off(goner);
765 SvMAGIC(goner) = 0;
766 SvREFCNT_dec(goner);
767 }
8aacddc1 768 GvAV(gv) = av;
fb73857a 769 if (SvMAGICAL(av)) {
3280af22 770 PL_localizing = 2;
fb73857a 771 SvSETMAGIC((SV*)av);
3280af22 772 PL_localizing = 0;
fb73857a 773 }
8aacddc1
NIS
774 break;
775 case SAVEt_HV: /* hash reference */
79072805
LW
776 hv = (HV*)SSPOPPTR;
777 gv = (GV*)SSPOPPTR;
fb73857a 778 if (GvHV(gv)) {
35a4481c 779 HV * const goner = GvHV(gv);
fb73857a
PP
780 SvMAGIC(hv) = SvMAGIC(goner);
781 SvFLAGS(hv) |= SvMAGICAL(goner);
782 SvMAGICAL_off(goner);
783 SvMAGIC(goner) = 0;
784 SvREFCNT_dec(goner);
785 }
8aacddc1 786 GvHV(gv) = hv;
fb73857a 787 if (SvMAGICAL(hv)) {
3280af22 788 PL_localizing = 2;
fb73857a 789 SvSETMAGIC((SV*)hv);
3280af22 790 PL_localizing = 0;
fb73857a 791 }
8aacddc1 792 break;
79072805
LW
793 case SAVEt_INT: /* int reference */
794 ptr = SSPOPPTR;
795 *(int*)ptr = (int)SSPOPINT;
796 break;
85e6fe83
LW
797 case SAVEt_LONG: /* long reference */
798 ptr = SSPOPPTR;
799 *(long*)ptr = (long)SSPOPLONG;
800 break;
9febdf04
RH
801 case SAVEt_BOOL: /* bool reference */
802 ptr = SSPOPPTR;
803 *(bool*)ptr = (bool)SSPOPBOOL;
804 break;
79072805
LW
805 case SAVEt_I32: /* I32 reference */
806 ptr = SSPOPPTR;
807 *(I32*)ptr = (I32)SSPOPINT;
808 break;
55497cff
PP
809 case SAVEt_I16: /* I16 reference */
810 ptr = SSPOPPTR;
811 *(I16*)ptr = (I16)SSPOPINT;
812 break;
146174a9
CB
813 case SAVEt_I8: /* I8 reference */
814 ptr = SSPOPPTR;
815 *(I8*)ptr = (I8)SSPOPINT;
816 break;
a0d0e21e
LW
817 case SAVEt_IV: /* IV reference */
818 ptr = SSPOPPTR;
819 *(IV*)ptr = (IV)SSPOPIV;
820 break;
79072805
LW
821 case SAVEt_SPTR: /* SV* reference */
822 ptr = SSPOPPTR;
823 *(SV**)ptr = (SV*)SSPOPPTR;
824 break;
146174a9 825 case SAVEt_VPTR: /* random* reference */
85e6fe83
LW
826 case SAVEt_PPTR: /* char* reference */
827 ptr = SSPOPPTR;
828 *(char**)ptr = (char*)SSPOPPTR;
829 break;
79072805
LW
830 case SAVEt_HPTR: /* HV* reference */
831 ptr = SSPOPPTR;
832 *(HV**)ptr = (HV*)SSPOPPTR;
833 break;
834 case SAVEt_APTR: /* AV* reference */
835 ptr = SSPOPPTR;
836 *(AV**)ptr = (AV*)SSPOPPTR;
837 break;
838 case SAVEt_NSTAB:
839 gv = (GV*)SSPOPPTR;
1f96a9ed 840 (void)sv_clear((SV*)gv);
79072805 841 break;
fb73857a 842 case SAVEt_GP: /* scalar reference */
79072805
LW
843 ptr = SSPOPPTR;
844 gv = (GV*)SSPOPPTR;
8aacddc1
NIS
845 if (SvPVX(gv) && SvLEN(gv) > 0) {
846 Safefree(SvPVX(gv));
847 }
f880fe2f 848 SvPV_set(gv, (char *)SSPOPPTR);
8aacddc1
NIS
849 SvCUR(gv) = (STRLEN)SSPOPIV;
850 SvLEN(gv) = (STRLEN)SSPOPIV;
851 gp_free(gv);
852 GvGP(gv) = (GP*)ptr;
fae75791 853 if (GvCVu(gv))
3280af22 854 PL_sub_generation++; /* putting a method back into circulation */
4633a7c4 855 SvREFCNT_dec(gv);
8aacddc1 856 break;
8990e307
LW
857 case SAVEt_FREESV:
858 ptr = SSPOPPTR;
859 SvREFCNT_dec((SV*)ptr);
860 break;
26d9b02f
JH
861 case SAVEt_MORTALIZESV:
862 ptr = SSPOPPTR;
863 sv_2mortal((SV*)ptr);
864 break;
8990e307
LW
865 case SAVEt_FREEOP:
866 ptr = SSPOPPTR;
f3548bdc 867 ASSERT_CURPAD_LEGAL("SAVEt_FREEOP"); /* XXX DAPM tmp */
8990e307
LW
868 op_free((OP*)ptr);
869 break;
870 case SAVEt_FREEPV:
871 ptr = SSPOPPTR;
872 Safefree((char*)ptr);
873 break;
874 case SAVEt_CLEARSV:
3280af22 875 ptr = (void*)&PL_curpad[SSPOPLONG];
8990e307 876 sv = *(SV**)ptr;
dd2155a4
DM
877
878 DEBUG_Xv(PerlIO_printf(Perl_debug_log,
f3548bdc
DM
879 "Pad 0x%"UVxf"[0x%"UVxf"] clearsv: %ld sv=0x%"UVxf"<%"IVdf"> %s\n",
880 PTR2UV(PL_comppad), PTR2UV(PL_curpad),
881 (long)((SV **)ptr-PL_curpad), PTR2UV(sv), (IV)SvREFCNT(sv),
dd2155a4
DM
882 (SvREFCNT(sv) <= 1 && !SvOBJECT(sv)) ? "clear" : "abandon"
883 ));
884
bc44cdaf
GS
885 /* Can clear pad variable in place? */
886 if (SvREFCNT(sv) <= 1 && !SvOBJECT(sv)) {
8aacddc1
NIS
887 /*
888 * if a my variable that was made readonly is going out of
889 * scope, we want to remove the readonlyness so that it can
890 * go out of scope quietly
8aacddc1 891 */
a26e96df 892 if (SvPADMY(sv) && !SvFAKE(sv))
8aacddc1
NIS
893 SvREADONLY_off(sv);
894
6fc92669 895 if (SvTHINKFIRST(sv))
840a7b70 896 sv_force_normal_flags(sv, SV_IMMEDIATE_UNREF);
a0d0e21e
LW
897 if (SvMAGICAL(sv))
898 mg_free(sv);
8990e307
LW
899
900 switch (SvTYPE(sv)) {
901 case SVt_NULL:
902 break;
903 case SVt_PVAV:
44a8e56a 904 av_clear((AV*)sv);
8990e307
LW
905 break;
906 case SVt_PVHV:
44a8e56a 907 hv_clear((HV*)sv);
8990e307
LW
908 break;
909 case SVt_PVCV:
cea2e8a9 910 Perl_croak(aTHX_ "panic: leave_scope pad code");
8990e307 911 default:
0c34ef67 912 SvOK_off(sv);
8990e307
LW
913 break;
914 }
d9d18af6 915 SvPADSTALE_on(sv); /* mark as no longer live */
8990e307
LW
916 }
917 else { /* Someone has a claim on this, so abandon it. */
35a4481c 918 const U32 padflags = SvFLAGS(sv) & (SVs_PADMY|SVs_PADTMP);
8990e307
LW
919 switch (SvTYPE(sv)) { /* Console ourselves with a new value */
920 case SVt_PVAV: *(SV**)ptr = (SV*)newAV(); break;
921 case SVt_PVHV: *(SV**)ptr = (SV*)newHV(); break;
922 default: *(SV**)ptr = NEWSV(0,0); break;
923 }
53868620 924 SvREFCNT_dec(sv); /* Cast current value to the winds. */
d9d18af6
DM
925 /* preserve pad nature, but also mark as not live
926 * for any closure capturing */
2740392c 927 SvFLAGS(*(SV**)ptr) |= padflags | SVs_PADSTALE;
8990e307
LW
928 }
929 break;
930 case SAVEt_DELETE:
931 ptr = SSPOPPTR;
932 hv = (HV*)ptr;
933 ptr = SSPOPPTR;
748a9306 934 (void)hv_delete(hv, (char*)ptr, (U32)SSPOPINT, G_DISCARD);
4e4c362e 935 SvREFCNT_dec(hv);
8aacddc1 936 Safefree(ptr);
8990e307 937 break;
a0d0e21e
LW
938 case SAVEt_DESTRUCTOR:
939 ptr = SSPOPPTR;
146174a9
CB
940 (*SSPOPDPTR)(ptr);
941 break;
942 case SAVEt_DESTRUCTOR_X:
943 ptr = SSPOPPTR;
acfe0abc 944 (*SSPOPDXPTR)(aTHX_ ptr);
a0d0e21e
LW
945 break;
946 case SAVEt_REGCONTEXT:
455ece5e 947 case SAVEt_ALLOC:
161b7d16 948 i = SSPOPINT;
3280af22 949 PL_savestack_ix -= i; /* regexp must have croaked */
a0d0e21e 950 break;
55497cff 951 case SAVEt_STACK_POS: /* Position on Perl stack */
161b7d16 952 i = SSPOPINT;
3280af22 953 PL_stack_sp = PL_stack_base + i;
55497cff 954 break;
161b7d16
SM
955 case SAVEt_AELEM: /* array element */
956 value = (SV*)SSPOPPTR;
957 i = SSPOPINT;
958 av = (AV*)SSPOPPTR;
5dd42e15
DM
959 if (!AvREAL(av) && AvREIFY(av)) /* undo reify guard */
960 SvREFCNT_dec(value);
161b7d16 961 ptr = av_fetch(av,i,1);
4e4c362e
GS
962 if (ptr) {
963 sv = *(SV**)ptr;
3280af22 964 if (sv && sv != &PL_sv_undef) {
14befaf4 965 if (SvTIED_mg((SV*)av, PERL_MAGIC_tied))
4e4c362e 966 (void)SvREFCNT_inc(sv);
4e4c362e
GS
967 goto restore_sv;
968 }
969 }
970 SvREFCNT_dec(av);
971 SvREFCNT_dec(value);
972 break;
161b7d16
SM
973 case SAVEt_HELEM: /* hash element */
974 value = (SV*)SSPOPPTR;
9002cb76 975 sv = (SV*)SSPOPPTR;
161b7d16
SM
976 hv = (HV*)SSPOPPTR;
977 ptr = hv_fetch_ent(hv, sv, 1, 0);
4e4c362e 978 if (ptr) {
35a4481c 979 const SV * const oval = HeVAL((HE*)ptr);
3280af22 980 if (oval && oval != &PL_sv_undef) {
4e4c362e 981 ptr = &HeVAL((HE*)ptr);
14befaf4 982 if (SvTIED_mg((SV*)hv, PERL_MAGIC_tied))
4e4c362e 983 (void)SvREFCNT_inc(*(SV**)ptr);
4e4c362e 984 SvREFCNT_dec(sv);
5dd42e15 985 av = (AV*)hv; /* what to refcnt_dec */
4e4c362e
GS
986 goto restore_sv;
987 }
988 }
989 SvREFCNT_dec(hv);
990 SvREFCNT_dec(sv);
991 SvREFCNT_dec(value);
992 break;
462e5cf6 993 case SAVEt_OP:
533c011a 994 PL_op = (OP*)SSPOPPTR;
462e5cf6 995 break;
25eaa213 996 case SAVEt_HINTS:
045ac317
RGS
997 if ((PL_hints & HINT_LOCALIZE_HH) && GvHV(PL_hintgv)) {
998 SvREFCNT_dec((SV*)GvHV(PL_hintgv));
999 GvHV(PL_hintgv) = NULL;
1000 }
3280af22 1001 *(I32*)&PL_hints = (I32)SSPOPINT;
dfa41748
DM
1002 if (PL_hints & HINT_LOCALIZE_HH) {
1003 SvREFCNT_dec((SV*)GvHV(PL_hintgv));
1004 GvHV(PL_hintgv) = (HV*)SSPOPPTR;
1005 }
1006
b3ac6de7 1007 break;
cb50131a 1008 case SAVEt_COMPPAD:
f3548bdc 1009 PL_comppad = (PAD*)SSPOPPTR;
58ed4fbe 1010 if (PL_comppad)
cb50131a
CB
1011 PL_curpad = AvARRAY(PL_comppad);
1012 else
1013 PL_curpad = Null(SV**);
1014 break;
c3564e5c
GS
1015 case SAVEt_PADSV:
1016 {
35a4481c 1017 const PADOFFSET off = (PADOFFSET)SSPOPLONG;
c3564e5c
GS
1018 ptr = SSPOPPTR;
1019 if (ptr)
f3548bdc 1020 AvARRAY((PAD*)ptr)[off] = (SV*)SSPOPPTR;
c3564e5c
GS
1021 }
1022 break;
8b7059b1
DM
1023 case SAVEt_SAVESWITCHSTACK:
1024 {
1025 dSP;
1026 AV* t = (AV*)SSPOPPTR;
1027 AV* f = (AV*)SSPOPPTR;
1028 SWITCHSTACK(t,f);
1029 PL_curstackinfo->si_stack = f;
1030 }
1031 break;
14f338dc
DM
1032 case SAVEt_SET_SVFLAGS:
1033 {
35a4481c
AL
1034 const U32 val = (U32)SSPOPINT;
1035 const U32 mask = (U32)SSPOPINT;
14f338dc
DM
1036 sv = (SV*)SSPOPPTR;
1037 SvFLAGS(sv) &= ~mask;
1038 SvFLAGS(sv) |= val;
1039 }
1040 break;
79072805 1041 default:
cea2e8a9 1042 Perl_croak(aTHX_ "panic: leave_scope inconsistency");
79072805
LW
1043 }
1044 }
1045}
8990e307 1046
8990e307 1047void
864dbfa3 1048Perl_cx_dump(pTHX_ PERL_CONTEXT *cx)
8990e307 1049{
35ff7856 1050#ifdef DEBUGGING
22c35a8c 1051 PerlIO_printf(Perl_debug_log, "CX %ld = %s\n", (long)(cx - cxstack), PL_block_type[CxTYPE(cx)]);
6b35e009 1052 if (CxTYPE(cx) != CXt_SUBST) {
760ac839 1053 PerlIO_printf(Perl_debug_log, "BLK_OLDSP = %ld\n", (long)cx->blk_oldsp);
146174a9
CB
1054 PerlIO_printf(Perl_debug_log, "BLK_OLDCOP = 0x%"UVxf"\n",
1055 PTR2UV(cx->blk_oldcop));
760ac839
LW
1056 PerlIO_printf(Perl_debug_log, "BLK_OLDMARKSP = %ld\n", (long)cx->blk_oldmarksp);
1057 PerlIO_printf(Perl_debug_log, "BLK_OLDSCOPESP = %ld\n", (long)cx->blk_oldscopesp);
146174a9
CB
1058 PerlIO_printf(Perl_debug_log, "BLK_OLDPM = 0x%"UVxf"\n",
1059 PTR2UV(cx->blk_oldpm));
760ac839 1060 PerlIO_printf(Perl_debug_log, "BLK_GIMME = %s\n", cx->blk_gimme ? "LIST" : "SCALAR");
8990e307 1061 }
6b35e009 1062 switch (CxTYPE(cx)) {
8990e307
LW
1063 case CXt_NULL:
1064 case CXt_BLOCK:
1065 break;
146174a9
CB
1066 case CXt_FORMAT:
1067 PerlIO_printf(Perl_debug_log, "BLK_SUB.CV = 0x%"UVxf"\n",
1068 PTR2UV(cx->blk_sub.cv));
1069 PerlIO_printf(Perl_debug_log, "BLK_SUB.GV = 0x%"UVxf"\n",
1070 PTR2UV(cx->blk_sub.gv));
1071 PerlIO_printf(Perl_debug_log, "BLK_SUB.DFOUTGV = 0x%"UVxf"\n",
1072 PTR2UV(cx->blk_sub.dfoutgv));
1073 PerlIO_printf(Perl_debug_log, "BLK_SUB.HASARGS = %d\n",
1074 (int)cx->blk_sub.hasargs);
f39bc417
DM
1075 PerlIO_printf(Perl_debug_log, "BLK_SUB.RETOP = 0x%"UVxf"\n",
1076 PTR2UV(cx->blk_sub.retop));
146174a9 1077 break;
8990e307 1078 case CXt_SUB:
146174a9
CB
1079 PerlIO_printf(Perl_debug_log, "BLK_SUB.CV = 0x%"UVxf"\n",
1080 PTR2UV(cx->blk_sub.cv));
760ac839 1081 PerlIO_printf(Perl_debug_log, "BLK_SUB.OLDDEPTH = %ld\n",
8990e307 1082 (long)cx->blk_sub.olddepth);
760ac839 1083 PerlIO_printf(Perl_debug_log, "BLK_SUB.HASARGS = %d\n",
8990e307 1084 (int)cx->blk_sub.hasargs);
146174a9
CB
1085 PerlIO_printf(Perl_debug_log, "BLK_SUB.LVAL = %d\n",
1086 (int)cx->blk_sub.lval);
f39bc417
DM
1087 PerlIO_printf(Perl_debug_log, "BLK_SUB.RETOP = 0x%"UVxf"\n",
1088 PTR2UV(cx->blk_sub.retop));
8990e307
LW
1089 break;
1090 case CXt_EVAL:
760ac839 1091 PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_IN_EVAL = %ld\n",
8990e307 1092 (long)cx->blk_eval.old_in_eval);
760ac839 1093 PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_OP_TYPE = %s (%s)\n",
22c35a8c
GS
1094 PL_op_name[cx->blk_eval.old_op_type],
1095 PL_op_desc[cx->blk_eval.old_op_type]);
0f79a09d
GS
1096 if (cx->blk_eval.old_namesv)
1097 PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_NAME = %s\n",
1098 SvPVX(cx->blk_eval.old_namesv));
146174a9
CB
1099 PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_EVAL_ROOT = 0x%"UVxf"\n",
1100 PTR2UV(cx->blk_eval.old_eval_root));
f39bc417
DM
1101 PerlIO_printf(Perl_debug_log, "BLK_EVAL.RETOP = 0x%"UVxf"\n",
1102 PTR2UV(cx->blk_eval.retop));
8990e307
LW
1103 break;
1104
1105 case CXt_LOOP:
760ac839 1106 PerlIO_printf(Perl_debug_log, "BLK_LOOP.LABEL = %s\n",
8990e307 1107 cx->blk_loop.label);
760ac839 1108 PerlIO_printf(Perl_debug_log, "BLK_LOOP.RESETSP = %ld\n",
8990e307 1109 (long)cx->blk_loop.resetsp);
146174a9
CB
1110 PerlIO_printf(Perl_debug_log, "BLK_LOOP.REDO_OP = 0x%"UVxf"\n",
1111 PTR2UV(cx->blk_loop.redo_op));
1112 PerlIO_printf(Perl_debug_log, "BLK_LOOP.NEXT_OP = 0x%"UVxf"\n",
1113 PTR2UV(cx->blk_loop.next_op));
1114 PerlIO_printf(Perl_debug_log, "BLK_LOOP.LAST_OP = 0x%"UVxf"\n",
1115 PTR2UV(cx->blk_loop.last_op));
760ac839 1116 PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERIX = %ld\n",
8990e307 1117 (long)cx->blk_loop.iterix);
146174a9
CB
1118 PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERARY = 0x%"UVxf"\n",
1119 PTR2UV(cx->blk_loop.iterary));
1120 PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERVAR = 0x%"UVxf"\n",
1121 PTR2UV(CxITERVAR(cx)));
1122 if (CxITERVAR(cx))
1123 PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERSAVE = 0x%"UVxf"\n",
1124 PTR2UV(cx->blk_loop.itersave));
1125 PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERLVAL = 0x%"UVxf"\n",
1126 PTR2UV(cx->blk_loop.iterlval));
8990e307
LW
1127 break;
1128
1129 case CXt_SUBST:
760ac839 1130 PerlIO_printf(Perl_debug_log, "SB_ITERS = %ld\n",
8990e307 1131 (long)cx->sb_iters);
760ac839 1132 PerlIO_printf(Perl_debug_log, "SB_MAXITERS = %ld\n",
8990e307 1133 (long)cx->sb_maxiters);
35ef4773
GS
1134 PerlIO_printf(Perl_debug_log, "SB_RFLAGS = %ld\n",
1135 (long)cx->sb_rflags);
760ac839 1136 PerlIO_printf(Perl_debug_log, "SB_ONCE = %ld\n",
8990e307 1137 (long)cx->sb_once);
760ac839 1138 PerlIO_printf(Perl_debug_log, "SB_ORIG = %s\n",
8990e307 1139 cx->sb_orig);
146174a9
CB
1140 PerlIO_printf(Perl_debug_log, "SB_DSTR = 0x%"UVxf"\n",
1141 PTR2UV(cx->sb_dstr));
1142 PerlIO_printf(Perl_debug_log, "SB_TARG = 0x%"UVxf"\n",
1143 PTR2UV(cx->sb_targ));
1144 PerlIO_printf(Perl_debug_log, "SB_S = 0x%"UVxf"\n",
1145 PTR2UV(cx->sb_s));
1146 PerlIO_printf(Perl_debug_log, "SB_M = 0x%"UVxf"\n",
1147 PTR2UV(cx->sb_m));
1148 PerlIO_printf(Perl_debug_log, "SB_STREND = 0x%"UVxf"\n",
1149 PTR2UV(cx->sb_strend));
1150 PerlIO_printf(Perl_debug_log, "SB_RXRES = 0x%"UVxf"\n",
1151 PTR2UV(cx->sb_rxres));
8990e307
LW
1152 break;
1153 }
17c3b450 1154#endif /* DEBUGGING */
35ff7856 1155}
241d1a3b
NC
1156
1157/*
1158 * Local variables:
1159 * c-indentation-style: bsd
1160 * c-basic-offset: 4
1161 * indent-tabs-mode: t
1162 * End:
1163 *
edf815fd 1164 * vim: shiftwidth=4:
241d1a3b 1165*/