This is a live mirror of the Perl 5 development currently hosted at https://github.com/perl/perl5
Split CXt_LOOP into CXt_LOOP_PLAIN and CXt_LOOP_FOR, eliminating the
[perl5.git] / scope.c
CommitLineData
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 }
72651472
NC
264#ifdef PERL_DONT_CREATE_GVSV
265 if (gv == PL_errgv) {
266 /* We could scatter this logic everywhere by changing the
267 definition of ERRSV from GvSV() to GvSVn(), but it seems more
268 efficient to do this check once here. */
269 gp->gp_sv = newSV(0);
270 }
271#endif
12816592 272 GvGP(gv) = gp;
5f05dabc
PP
273 }
274 else {
44a8e56a 275 gp_ref(GvGP(gv));
5f05dabc
PP
276 GvINTRO_on(gv);
277 }
79072805 278}
79072805 279
79072805 280AV *
864dbfa3 281Perl_save_ary(pTHX_ GV *gv)
79072805 282{
97aff369 283 dVAR;
901017d6 284 AV * const oav = GvAVn(gv);
67a38de0 285 AV *av;
fb73857a 286
67a38de0
NIS
287 if (!AvREAL(oav) && AvREIFY(oav))
288 av_reify(oav);
79072805
LW
289 SSCHECK(3);
290 SSPUSHPTR(gv);
67a38de0 291 SSPUSHPTR(oav);
79072805
LW
292 SSPUSHINT(SAVEt_AV);
293
4608196e 294 GvAV(gv) = NULL;
fb73857a 295 av = GvAVn(gv);
0cbee0a4
DM
296 if (SvMAGIC(oav))
297 mg_localize((SV*)oav, (SV*)av);
fb73857a 298 return av;
79072805
LW
299}
300
301HV *
864dbfa3 302Perl_save_hash(pTHX_ GV *gv)
79072805 303{
97aff369 304 dVAR;
fb73857a
PP
305 HV *ohv, *hv;
306
79072805
LW
307 SSCHECK(3);
308 SSPUSHPTR(gv);
fb73857a 309 SSPUSHPTR(ohv = GvHVn(gv));
79072805
LW
310 SSPUSHINT(SAVEt_HV);
311
4608196e 312 GvHV(gv) = NULL;
fb73857a 313 hv = GvHVn(gv);
0cbee0a4
DM
314 if (SvMAGIC(ohv))
315 mg_localize((SV*)ohv, (SV*)hv);
fb73857a 316 return hv;
79072805
LW
317}
318
319void
864dbfa3 320Perl_save_item(pTHX_ register SV *item)
79072805 321{
97aff369 322 dVAR;
901017d6 323 register SV * const sv = newSVsv(item);
79072805
LW
324
325 SSCHECK(3);
326 SSPUSHPTR(item); /* remember the pointer */
79072805
LW
327 SSPUSHPTR(sv); /* remember the value */
328 SSPUSHINT(SAVEt_ITEM);
329}
330
331void
864dbfa3 332Perl_save_int(pTHX_ int *intp)
79072805 333{
97aff369 334 dVAR;
79072805
LW
335 SSCHECK(3);
336 SSPUSHINT(*intp);
337 SSPUSHPTR(intp);
338 SSPUSHINT(SAVEt_INT);
339}
340
341void
9febdf04
RH
342Perl_save_bool(pTHX_ bool *boolp)
343{
97aff369 344 dVAR;
9febdf04
RH
345 SSCHECK(3);
346 SSPUSHBOOL(*boolp);
347 SSPUSHPTR(boolp);
348 SSPUSHINT(SAVEt_BOOL);
349}
350
351void
58188858
RGS
352Perl_save_I8(pTHX_ I8 *bytep)
353{
354 dVAR;
355 SSCHECK(3);
356 SSPUSHINT(*bytep);
357 SSPUSHPTR(bytep);
358 SSPUSHINT(SAVEt_I8);
359}
360
361void
87a84751
JH
362Perl_save_I16(pTHX_ I16 *intp)
363{
364 dVAR;
365 SSCHECK(3);
366 SSPUSHINT(*intp);
367 SSPUSHPTR(intp);
368 SSPUSHINT(SAVEt_I16);
369}
370
371void
864dbfa3 372Perl_save_I32(pTHX_ I32 *intp)
79072805 373{
97aff369 374 dVAR;
79072805
LW
375 SSCHECK(3);
376 SSPUSHINT(*intp);
377 SSPUSHPTR(intp);
378 SSPUSHINT(SAVEt_I32);
379}
380
85e6fe83
LW
381/* Cannot use save_sptr() to store a char* since the SV** cast will
382 * force word-alignment and we'll miss the pointer.
383 */
384void
864dbfa3 385Perl_save_pptr(pTHX_ char **pptr)
85e6fe83 386{
97aff369 387 dVAR;
85e6fe83
LW
388 SSCHECK(3);
389 SSPUSHPTR(*pptr);
390 SSPUSHPTR(pptr);
391 SSPUSHINT(SAVEt_PPTR);
392}
393
79072805 394void
146174a9
CB
395Perl_save_vptr(pTHX_ void *ptr)
396{
97aff369 397 dVAR;
146174a9
CB
398 SSCHECK(3);
399 SSPUSHPTR(*(char**)ptr);
400 SSPUSHPTR(ptr);
401 SSPUSHINT(SAVEt_VPTR);
402}
403
404void
864dbfa3 405Perl_save_sptr(pTHX_ SV **sptr)
79072805 406{
97aff369 407 dVAR;
79072805
LW
408 SSCHECK(3);
409 SSPUSHPTR(*sptr);
410 SSPUSHPTR(sptr);
411 SSPUSHINT(SAVEt_SPTR);
412}
413
c3564e5c
GS
414void
415Perl_save_padsv(pTHX_ PADOFFSET off)
416{
97aff369 417 dVAR;
c3564e5c 418 SSCHECK(4);
f3548bdc 419 ASSERT_CURPAD_ACTIVE("save_padsv");
c3564e5c 420 SSPUSHPTR(PL_curpad[off]);
f3548bdc 421 SSPUSHPTR(PL_comppad);
c3564e5c
GS
422 SSPUSHLONG((long)off);
423 SSPUSHINT(SAVEt_PADSV);
424}
425
79072805 426void
864dbfa3 427Perl_save_hptr(pTHX_ HV **hptr)
79072805 428{
97aff369 429 dVAR;
79072805 430 SSCHECK(3);
85e6fe83 431 SSPUSHPTR(*hptr);
79072805
LW
432 SSPUSHPTR(hptr);
433 SSPUSHINT(SAVEt_HPTR);
434}
435
436void
864dbfa3 437Perl_save_aptr(pTHX_ AV **aptr)
79072805 438{
97aff369 439 dVAR;
79072805 440 SSCHECK(3);
85e6fe83 441 SSPUSHPTR(*aptr);
79072805
LW
442 SSPUSHPTR(aptr);
443 SSPUSHINT(SAVEt_APTR);
444}
445
446void
864dbfa3 447Perl_save_freesv(pTHX_ SV *sv)
8990e307 448{
97aff369 449 dVAR;
8990e307
LW
450 SSCHECK(2);
451 SSPUSHPTR(sv);
452 SSPUSHINT(SAVEt_FREESV);
453}
454
455void
26d9b02f
JH
456Perl_save_mortalizesv(pTHX_ SV *sv)
457{
97aff369 458 dVAR;
26d9b02f
JH
459 SSCHECK(2);
460 SSPUSHPTR(sv);
461 SSPUSHINT(SAVEt_MORTALIZESV);
462}
463
464void
864dbfa3 465Perl_save_freeop(pTHX_ OP *o)
8990e307 466{
97aff369 467 dVAR;
8990e307 468 SSCHECK(2);
11343788 469 SSPUSHPTR(o);
8990e307
LW
470 SSPUSHINT(SAVEt_FREEOP);
471}
472
473void
864dbfa3 474Perl_save_freepv(pTHX_ char *pv)
8990e307 475{
97aff369 476 dVAR;
8990e307
LW
477 SSCHECK(2);
478 SSPUSHPTR(pv);
479 SSPUSHINT(SAVEt_FREEPV);
480}
481
482void
864dbfa3 483Perl_save_clearsv(pTHX_ SV **svp)
8990e307 484{
97aff369 485 dVAR;
f3548bdc 486 ASSERT_CURPAD_ACTIVE("save_clearsv");
8990e307 487 SSCHECK(2);
3280af22 488 SSPUSHLONG((long)(svp-PL_curpad));
8990e307 489 SSPUSHINT(SAVEt_CLEARSV);
d9d18af6 490 SvPADSTALE_off(*svp); /* mark lexical as active */
8990e307
LW
491}
492
493void
864dbfa3 494Perl_save_delete(pTHX_ HV *hv, char *key, I32 klen)
8990e307 495{
97aff369 496 dVAR;
8990e307
LW
497 SSCHECK(4);
498 SSPUSHINT(klen);
499 SSPUSHPTR(key);
b37c2d43 500 SSPUSHPTR(SvREFCNT_inc_simple(hv));
8990e307
LW
501 SSPUSHINT(SAVEt_DELETE);
502}
503
504void
12ab1f58
JH
505Perl_save_destructor(pTHX_ DESTRUCTORFUNC_NOCONTEXT_t f, void* p)
506{
507 dVAR;
508 SSCHECK(3);
509 SSPUSHDPTR(f);
510 SSPUSHPTR(p);
511 SSPUSHINT(SAVEt_DESTRUCTOR);
512}
513
514void
146174a9
CB
515Perl_save_destructor_x(pTHX_ DESTRUCTORFUNC_t f, void* p)
516{
97aff369 517 dVAR;
146174a9
CB
518 SSCHECK(3);
519 SSPUSHDXPTR(f);
520 SSPUSHPTR(p);
521 SSPUSHINT(SAVEt_DESTRUCTOR_X);
522}
523
524void
59413342 525Perl_save_aelem(pTHX_ AV *av, I32 idx, SV **sptr)
4e4c362e 526{
97aff369 527 dVAR;
bfc4de9f 528 SV *sv;
0cbee0a4 529 SvGETMAGIC(*sptr);
4e4c362e 530 SSCHECK(4);
b37c2d43 531 SSPUSHPTR(SvREFCNT_inc_simple(av));
4e4c362e
GS
532 SSPUSHINT(idx);
533 SSPUSHPTR(SvREFCNT_inc(*sptr));
534 SSPUSHINT(SAVEt_AELEM);
5dd42e15
DM
535 /* if it gets reified later, the restore will have the wrong refcnt */
536 if (!AvREAL(av) && AvREIFY(av))
b37c2d43 537 SvREFCNT_inc_void(*sptr);
4e4c362e 538 save_scalar_at(sptr);
bfc4de9f
DM
539 sv = *sptr;
540 /* If we're localizing a tied array element, this new sv
541 * won't actually be stored in the array - so it won't get
542 * reaped when the localize ends. Ensure it gets reaped by
543 * mortifying it instead. DAPM */
544 if (SvTIED_mg(sv, PERL_MAGIC_tiedelem))
545 sv_2mortal(sv);
4e4c362e
GS
546}
547
548void
e1ec3a88 549Perl_save_helem(pTHX_ HV *hv, SV *key, SV **sptr)
4e4c362e 550{
97aff369 551 dVAR;
bfc4de9f 552 SV *sv;
0cbee0a4 553 SvGETMAGIC(*sptr);
4e4c362e 554 SSCHECK(4);
b37c2d43 555 SSPUSHPTR(SvREFCNT_inc_simple(hv));
b2096149 556 SSPUSHPTR(newSVsv(key));
4e4c362e
GS
557 SSPUSHPTR(SvREFCNT_inc(*sptr));
558 SSPUSHINT(SAVEt_HELEM);
559 save_scalar_at(sptr);
bfc4de9f
DM
560 sv = *sptr;
561 /* If we're localizing a tied hash element, this new sv
562 * won't actually be stored in the hash - so it won't get
563 * reaped when the localize ends. Ensure it gets reaped by
564 * mortifying it instead. DAPM */
565 if (SvTIED_mg(sv, PERL_MAGIC_tiedelem))
566 sv_2mortal(sv);
4e4c362e
GS
567}
568
2053acbf
NC
569SV*
570Perl_save_svref(pTHX_ SV **sptr)
571{
572 dVAR;
573 SvGETMAGIC(*sptr);
574 SSCHECK(3);
575 SSPUSHPTR(sptr);
576 SSPUSHPTR(SvREFCNT_inc(*sptr));
577 SSPUSHINT(SAVEt_SVREF);
578 return save_scalar_at(sptr);
579}
580
4e4c362e 581void
864dbfa3 582Perl_save_op(pTHX)
462e5cf6 583{
97aff369 584 dVAR;
462e5cf6 585 SSCHECK(2);
533c011a 586 SSPUSHPTR(PL_op);
462e5cf6
MB
587 SSPUSHINT(SAVEt_OP);
588}
589
455ece5e 590I32
864dbfa3 591Perl_save_alloc(pTHX_ I32 size, I32 pad)
455ece5e 592{
97aff369 593 dVAR;
35a4481c 594 register const I32 start = pad + ((char*)&PL_savestack[PL_savestack_ix]
8aacddc1 595 - (char*)PL_savestack);
35a4481c 596 register const I32 elems = 1 + ((size + pad - 1) / sizeof(*PL_savestack));
455ece5e 597
1bb4c835 598 SSGROW(elems + 2);
455ece5e
AD
599
600 PL_savestack_ix += elems;
601 SSPUSHINT(elems);
602 SSPUSHINT(SAVEt_ALLOC);
603 return start;
604}
605
462e5cf6 606void
864dbfa3 607Perl_leave_scope(pTHX_ I32 base)
79072805 608{
97aff369 609 dVAR;
79072805
LW
610 register SV *sv;
611 register SV *value;
612 register GV *gv;
613 register AV *av;
614 register HV *hv;
20454177 615 void* ptr;
f4dd75d9 616 register char* str;
161b7d16 617 I32 i;
79072805
LW
618
619 if (base < -1)
cea2e8a9 620 Perl_croak(aTHX_ "panic: corrupt saved stack index");
3280af22 621 while (PL_savestack_ix > base) {
79072805
LW
622 switch (SSPOPINT) {
623 case SAVEt_ITEM: /* normal string */
624 value = (SV*)SSPOPPTR;
625 sv = (SV*)SSPOPPTR;
626 sv_replace(sv,value);
3280af22 627 PL_localizing = 2;
79072805 628 SvSETMAGIC(sv);
3280af22 629 PL_localizing = 0;
79072805 630 break;
8aacddc1 631 case SAVEt_SV: /* scalar reference */
79072805
LW
632 value = (SV*)SSPOPPTR;
633 gv = (GV*)SSPOPPTR;
7a4c00b4 634 ptr = &GvSV(gv);
5dd42e15 635 av = (AV*)gv; /* what to refcnt_dec */
2053acbf
NC
636 restore_sv:
637 sv = *(SV**)ptr;
638 DEBUG_S(PerlIO_printf(Perl_debug_log,
639 "restore svref: %p %p:%s -> %p:%s\n",
6c9570dc
MHM
640 (void*)ptr, (void*)sv, SvPEEK(sv),
641 (void*)value, SvPEEK(value)));
2053acbf
NC
642 *(SV**)ptr = value;
643 SvREFCNT_dec(sv);
644 PL_localizing = 2;
645 SvSETMAGIC(value);
646 PL_localizing = 0;
647 SvREFCNT_dec(value);
648 if (av) /* actually an av, hv or gv */
649 SvREFCNT_dec(av);
650 break;
8aacddc1 651 case SAVEt_GENERIC_PVREF: /* generic pv */
f4dd75d9 652 ptr = SSPOPPTR;
b03d03b0 653 str = (char*)SSPOPPTR;
f4dd75d9
GS
654 if (*(char**)ptr != str) {
655 Safefree(*(char**)ptr);
656 *(char**)ptr = str;
657 }
658 break;
05ec9bb3
NIS
659 case SAVEt_SHARED_PVREF: /* shared pv */
660 str = (char*)SSPOPPTR;
661 ptr = SSPOPPTR;
662 if (*(char**)ptr != str) {
5e54c26f 663#ifdef NETWARE
9ecbcc42 664 PerlMem_free(*(char**)ptr);
5e54c26f 665#else
05ec9bb3 666 PerlMemShared_free(*(char**)ptr);
5e54c26f 667#endif
05ec9bb3
NIS
668 *(char**)ptr = str;
669 }
670 break;
8aacddc1 671 case SAVEt_GENERIC_SVREF: /* generic sv */
b9d12d37
GS
672 value = (SV*)SSPOPPTR;
673 ptr = SSPOPPTR;
f4dd75d9
GS
674 sv = *(SV**)ptr;
675 *(SV**)ptr = value;
676 SvREFCNT_dec(sv);
b9d12d37
GS
677 SvREFCNT_dec(value);
678 break;
8aacddc1 679 case SAVEt_AV: /* array reference */
79072805
LW
680 av = (AV*)SSPOPPTR;
681 gv = (GV*)SSPOPPTR;
fb73857a 682 if (GvAV(gv)) {
c4a7531d 683 SvREFCNT_dec(GvAV(gv));
fb73857a 684 }
8aacddc1 685 GvAV(gv) = av;
fb73857a 686 if (SvMAGICAL(av)) {
3280af22 687 PL_localizing = 2;
fb73857a 688 SvSETMAGIC((SV*)av);
3280af22 689 PL_localizing = 0;
fb73857a 690 }
8aacddc1
NIS
691 break;
692 case SAVEt_HV: /* hash reference */
79072805
LW
693 hv = (HV*)SSPOPPTR;
694 gv = (GV*)SSPOPPTR;
fb73857a 695 if (GvHV(gv)) {
c4a7531d 696 SvREFCNT_dec(GvHV(gv));
fb73857a 697 }
8aacddc1 698 GvHV(gv) = hv;
fb73857a 699 if (SvMAGICAL(hv)) {
3280af22 700 PL_localizing = 2;
fb73857a 701 SvSETMAGIC((SV*)hv);
3280af22 702 PL_localizing = 0;
fb73857a 703 }
8aacddc1 704 break;
79072805
LW
705 case SAVEt_INT: /* int reference */
706 ptr = SSPOPPTR;
707 *(int*)ptr = (int)SSPOPINT;
708 break;
9febdf04
RH
709 case SAVEt_BOOL: /* bool reference */
710 ptr = SSPOPPTR;
711 *(bool*)ptr = (bool)SSPOPBOOL;
712 break;
79072805
LW
713 case SAVEt_I32: /* I32 reference */
714 ptr = SSPOPPTR;
3235b7a3
NC
715#ifdef PERL_DEBUG_READONLY_OPS
716 {
717 const I32 val = SSPOPINT;
718 if (*(I32*)ptr != val)
719 *(I32*)ptr = val;
720 }
721#else
79072805 722 *(I32*)ptr = (I32)SSPOPINT;
3235b7a3 723#endif
79072805
LW
724 break;
725 case SAVEt_SPTR: /* SV* reference */
726 ptr = SSPOPPTR;
727 *(SV**)ptr = (SV*)SSPOPPTR;
728 break;
146174a9 729 case SAVEt_VPTR: /* random* reference */
85e6fe83
LW
730 case SAVEt_PPTR: /* char* reference */
731 ptr = SSPOPPTR;
732 *(char**)ptr = (char*)SSPOPPTR;
733 break;
79072805
LW
734 case SAVEt_HPTR: /* HV* reference */
735 ptr = SSPOPPTR;
736 *(HV**)ptr = (HV*)SSPOPPTR;
737 break;
738 case SAVEt_APTR: /* AV* reference */
739 ptr = SSPOPPTR;
740 *(AV**)ptr = (AV*)SSPOPPTR;
741 break;
fb73857a 742 case SAVEt_GP: /* scalar reference */
79072805
LW
743 ptr = SSPOPPTR;
744 gv = (GV*)SSPOPPTR;
8aacddc1
NIS
745 gp_free(gv);
746 GvGP(gv) = (GP*)ptr;
dd69841b
BB
747 /* putting a method back into circulation ("local")*/
748 if (GvCVu(gv) && (hv=GvSTASH(gv)) && HvNAME_get(hv))
749 mro_method_changed_in(hv);
4633a7c4 750 SvREFCNT_dec(gv);
8aacddc1 751 break;
8990e307
LW
752 case SAVEt_FREESV:
753 ptr = SSPOPPTR;
754 SvREFCNT_dec((SV*)ptr);
755 break;
26d9b02f
JH
756 case SAVEt_MORTALIZESV:
757 ptr = SSPOPPTR;
758 sv_2mortal((SV*)ptr);
759 break;
8990e307
LW
760 case SAVEt_FREEOP:
761 ptr = SSPOPPTR;
f3548bdc 762 ASSERT_CURPAD_LEGAL("SAVEt_FREEOP"); /* XXX DAPM tmp */
8990e307
LW
763 op_free((OP*)ptr);
764 break;
765 case SAVEt_FREEPV:
766 ptr = SSPOPPTR;
1df70142 767 Safefree(ptr);
8990e307
LW
768 break;
769 case SAVEt_CLEARSV:
3280af22 770 ptr = (void*)&PL_curpad[SSPOPLONG];
8990e307 771 sv = *(SV**)ptr;
dd2155a4
DM
772
773 DEBUG_Xv(PerlIO_printf(Perl_debug_log,
f3548bdc
DM
774 "Pad 0x%"UVxf"[0x%"UVxf"] clearsv: %ld sv=0x%"UVxf"<%"IVdf"> %s\n",
775 PTR2UV(PL_comppad), PTR2UV(PL_curpad),
776 (long)((SV **)ptr-PL_curpad), PTR2UV(sv), (IV)SvREFCNT(sv),
dd2155a4
DM
777 (SvREFCNT(sv) <= 1 && !SvOBJECT(sv)) ? "clear" : "abandon"
778 ));
779
bc44cdaf
GS
780 /* Can clear pad variable in place? */
781 if (SvREFCNT(sv) <= 1 && !SvOBJECT(sv)) {
8aacddc1
NIS
782 /*
783 * if a my variable that was made readonly is going out of
784 * scope, we want to remove the readonlyness so that it can
785 * go out of scope quietly
8aacddc1 786 */
a26e96df 787 if (SvPADMY(sv) && !SvFAKE(sv))
8aacddc1
NIS
788 SvREADONLY_off(sv);
789
6fc92669 790 if (SvTHINKFIRST(sv))
840a7b70 791 sv_force_normal_flags(sv, SV_IMMEDIATE_UNREF);
a0d0e21e
LW
792 if (SvMAGICAL(sv))
793 mg_free(sv);
8990e307
LW
794
795 switch (SvTYPE(sv)) {
796 case SVt_NULL:
797 break;
798 case SVt_PVAV:
44a8e56a 799 av_clear((AV*)sv);
8990e307
LW
800 break;
801 case SVt_PVHV:
44a8e56a 802 hv_clear((HV*)sv);
8990e307
LW
803 break;
804 case SVt_PVCV:
cea2e8a9 805 Perl_croak(aTHX_ "panic: leave_scope pad code");
8990e307 806 default:
0c34ef67 807 SvOK_off(sv);
8990e307
LW
808 break;
809 }
d9d18af6 810 SvPADSTALE_on(sv); /* mark as no longer live */
8990e307
LW
811 }
812 else { /* Someone has a claim on this, so abandon it. */
35a4481c 813 const U32 padflags = SvFLAGS(sv) & (SVs_PADMY|SVs_PADTMP);
8990e307
LW
814 switch (SvTYPE(sv)) { /* Console ourselves with a new value */
815 case SVt_PVAV: *(SV**)ptr = (SV*)newAV(); break;
816 case SVt_PVHV: *(SV**)ptr = (SV*)newHV(); break;
561b68a9 817 default: *(SV**)ptr = newSV(0); break;
8990e307 818 }
53868620 819 SvREFCNT_dec(sv); /* Cast current value to the winds. */
d9d18af6
DM
820 /* preserve pad nature, but also mark as not live
821 * for any closure capturing */
2740392c 822 SvFLAGS(*(SV**)ptr) |= padflags | SVs_PADSTALE;
8990e307
LW
823 }
824 break;
825 case SAVEt_DELETE:
826 ptr = SSPOPPTR;
827 hv = (HV*)ptr;
828 ptr = SSPOPPTR;
7d654f43 829 (void)hv_delete(hv, (char*)ptr, (I32)SSPOPINT, G_DISCARD);
4e4c362e 830 SvREFCNT_dec(hv);
8aacddc1 831 Safefree(ptr);
8990e307 832 break;
146174a9
CB
833 case SAVEt_DESTRUCTOR_X:
834 ptr = SSPOPPTR;
acfe0abc 835 (*SSPOPDXPTR)(aTHX_ ptr);
a0d0e21e
LW
836 break;
837 case SAVEt_REGCONTEXT:
455ece5e 838 case SAVEt_ALLOC:
161b7d16 839 i = SSPOPINT;
3280af22 840 PL_savestack_ix -= i; /* regexp must have croaked */
a0d0e21e 841 break;
55497cff 842 case SAVEt_STACK_POS: /* Position on Perl stack */
161b7d16 843 i = SSPOPINT;
3280af22 844 PL_stack_sp = PL_stack_base + i;
55497cff 845 break;
ea8d6ae1
DB
846 case SAVEt_STACK_CXPOS: /* blk_oldsp on context stack */
847 i = SSPOPINT;
848 cxstack[i].blk_oldsp = SSPOPINT;
849 break;
161b7d16
SM
850 case SAVEt_AELEM: /* array element */
851 value = (SV*)SSPOPPTR;
852 i = SSPOPINT;
853 av = (AV*)SSPOPPTR;
658aef79 854 ptr = av_fetch(av,i,1);
5dd42e15
DM
855 if (!AvREAL(av) && AvREIFY(av)) /* undo reify guard */
856 SvREFCNT_dec(value);
4e4c362e
GS
857 if (ptr) {
858 sv = *(SV**)ptr;
3280af22 859 if (sv && sv != &PL_sv_undef) {
14befaf4 860 if (SvTIED_mg((SV*)av, PERL_MAGIC_tied))
b37c2d43 861 SvREFCNT_inc_void_NN(sv);
4e4c362e
GS
862 goto restore_sv;
863 }
864 }
865 SvREFCNT_dec(av);
866 SvREFCNT_dec(value);
867 break;
161b7d16
SM
868 case SAVEt_HELEM: /* hash element */
869 value = (SV*)SSPOPPTR;
9002cb76 870 sv = (SV*)SSPOPPTR;
161b7d16
SM
871 hv = (HV*)SSPOPPTR;
872 ptr = hv_fetch_ent(hv, sv, 1, 0);
4e4c362e 873 if (ptr) {
35a4481c 874 const SV * const oval = HeVAL((HE*)ptr);
3280af22 875 if (oval && oval != &PL_sv_undef) {
4e4c362e 876 ptr = &HeVAL((HE*)ptr);
14befaf4 877 if (SvTIED_mg((SV*)hv, PERL_MAGIC_tied))
b37c2d43 878 SvREFCNT_inc_void(*(SV**)ptr);
4e4c362e 879 SvREFCNT_dec(sv);
5dd42e15 880 av = (AV*)hv; /* what to refcnt_dec */
4e4c362e
GS
881 goto restore_sv;
882 }
883 }
884 SvREFCNT_dec(hv);
885 SvREFCNT_dec(sv);
886 SvREFCNT_dec(value);
887 break;
462e5cf6 888 case SAVEt_OP:
533c011a 889 PL_op = (OP*)SSPOPPTR;
462e5cf6 890 break;
25eaa213 891 case SAVEt_HINTS:
045ac317
RGS
892 if ((PL_hints & HINT_LOCALIZE_HH) && GvHV(PL_hintgv)) {
893 SvREFCNT_dec((SV*)GvHV(PL_hintgv));
894 GvHV(PL_hintgv) = NULL;
895 }
3280af22 896 *(I32*)&PL_hints = (I32)SSPOPINT;
c28fe1ec
NC
897 Perl_refcounted_he_free(aTHX_ PL_compiling.cop_hints_hash);
898 PL_compiling.cop_hints_hash = (struct refcounted_he *) SSPOPPTR;
dfa41748
DM
899 if (PL_hints & HINT_LOCALIZE_HH) {
900 SvREFCNT_dec((SV*)GvHV(PL_hintgv));
901 GvHV(PL_hintgv) = (HV*)SSPOPPTR;
5b9c0671
NC
902 assert(GvHV(PL_hintgv));
903 } else if (!GvHV(PL_hintgv)) {
904 /* Need to add a new one manually, else gv_fetchpv() can
905 add one in this code:
906
907 if (SvTYPE(gv) == SVt_PVGV) {
908 if (add) {
909 GvMULTI_on(gv);
910 gv_init_sv(gv, sv_type);
911 if (*name=='!' && sv_type == SVt_PVHV && len==1)
912 require_errno(gv);
913 }
914 return gv;
915 }
916
917 and it won't have the magic set. */
918
919 HV *const hv = newHV();
920 hv_magic(hv, NULL, PERL_MAGIC_hints);
921 GvHV(PL_hintgv) = hv;
dfa41748 922 }
5b9c0671 923 assert(GvHV(PL_hintgv));
b3ac6de7 924 break;
cb50131a 925 case SAVEt_COMPPAD:
f3548bdc 926 PL_comppad = (PAD*)SSPOPPTR;
58ed4fbe 927 if (PL_comppad)
cb50131a
CB
928 PL_curpad = AvARRAY(PL_comppad);
929 else
4608196e 930 PL_curpad = NULL;
cb50131a 931 break;
c3564e5c
GS
932 case SAVEt_PADSV:
933 {
35a4481c 934 const PADOFFSET off = (PADOFFSET)SSPOPLONG;
c3564e5c
GS
935 ptr = SSPOPPTR;
936 if (ptr)
f3548bdc 937 AvARRAY((PAD*)ptr)[off] = (SV*)SSPOPPTR;
c3564e5c
GS
938 }
939 break;
8b7059b1
DM
940 case SAVEt_SAVESWITCHSTACK:
941 {
942 dSP;
7452cf6a
AL
943 AV* const t = (AV*)SSPOPPTR;
944 AV* const f = (AV*)SSPOPPTR;
8b7059b1
DM
945 SWITCHSTACK(t,f);
946 PL_curstackinfo->si_stack = f;
947 }
948 break;
14f338dc
DM
949 case SAVEt_SET_SVFLAGS:
950 {
35a4481c
AL
951 const U32 val = (U32)SSPOPINT;
952 const U32 mask = (U32)SSPOPINT;
14f338dc
DM
953 sv = (SV*)SSPOPPTR;
954 SvFLAGS(sv) &= ~mask;
955 SvFLAGS(sv) |= val;
956 }
957 break;
2053acbf
NC
958 /* These are only saved in mathoms.c */
959 case SAVEt_SVREF: /* scalar reference */
960 value = (SV*)SSPOPPTR;
961 ptr = SSPOPPTR;
962 av = NULL; /* what to refcnt_dec */
963 goto restore_sv;
964 case SAVEt_LONG: /* long reference */
965 ptr = SSPOPPTR;
966 *(long*)ptr = (long)SSPOPLONG;
967 break;
968 case SAVEt_I16: /* I16 reference */
969 ptr = SSPOPPTR;
970 *(I16*)ptr = (I16)SSPOPINT;
971 break;
972 case SAVEt_I8: /* I8 reference */
973 ptr = SSPOPPTR;
974 *(I8*)ptr = (I8)SSPOPINT;
975 break;
976 case SAVEt_IV: /* IV reference */
977 ptr = SSPOPPTR;
978 *(IV*)ptr = (IV)SSPOPIV;
979 break;
980 case SAVEt_NSTAB:
981 gv = (GV*)SSPOPPTR;
982 (void)sv_clear((SV*)gv);
983 break;
984 case SAVEt_DESTRUCTOR:
985 ptr = SSPOPPTR;
986 (*SSPOPDPTR)(ptr);
987 break;
fc15ae8f
NC
988 case SAVEt_COP_ARYBASE:
989 ptr = SSPOPPTR;
990 i = SSPOPINT;
991 CopARYBASE_set((COP *)ptr, i);
992 break;
68da3b2f
NC
993 case SAVEt_COMPILE_WARNINGS:
994 ptr = SSPOPPTR;
72dc9ed5 995
68da3b2f
NC
996 if (!specialWARN(PL_compiling.cop_warnings))
997 PerlMemShared_free(PL_compiling.cop_warnings);
72dc9ed5 998
10edeb5d 999 PL_compiling.cop_warnings = (STRLEN*)ptr;
72dc9ed5 1000 break;
1ade1aa1
NC
1001 case SAVEt_RE_STATE:
1002 {
1003 const struct re_save_state *const state
1004 = (struct re_save_state *)
1005 (PL_savestack + PL_savestack_ix
1006 - SAVESTACK_ALLOC_FOR_RE_SAVE_STATE);
1007 PL_savestack_ix -= SAVESTACK_ALLOC_FOR_RE_SAVE_STATE;
1008
1ade1aa1
NC
1009 if (PL_reg_start_tmp != state->re_state_reg_start_tmp) {
1010 Safefree(PL_reg_start_tmp);
1ade1aa1 1011 }
1ade1aa1
NC
1012 if (PL_reg_poscache != state->re_state_reg_poscache) {
1013 Safefree(PL_reg_poscache);
1ade1aa1 1014 }
46ab3289 1015 Copy(state, &PL_reg_state, 1, struct re_save_state);
1ade1aa1
NC
1016 }
1017 break;
7c197c94
DM
1018 case SAVEt_PARSER:
1019 ptr = SSPOPPTR;
1020 parser_free((yy_parser *) ptr);
1021 break;
79072805 1022 default:
cea2e8a9 1023 Perl_croak(aTHX_ "panic: leave_scope inconsistency");
79072805
LW
1024 }
1025 }
1026}
8990e307 1027
8990e307 1028void
864dbfa3 1029Perl_cx_dump(pTHX_ PERL_CONTEXT *cx)
8990e307 1030{
97aff369 1031 dVAR;
35ff7856 1032#ifdef DEBUGGING
22c35a8c 1033 PerlIO_printf(Perl_debug_log, "CX %ld = %s\n", (long)(cx - cxstack), PL_block_type[CxTYPE(cx)]);
6b35e009 1034 if (CxTYPE(cx) != CXt_SUBST) {
760ac839 1035 PerlIO_printf(Perl_debug_log, "BLK_OLDSP = %ld\n", (long)cx->blk_oldsp);
146174a9
CB
1036 PerlIO_printf(Perl_debug_log, "BLK_OLDCOP = 0x%"UVxf"\n",
1037 PTR2UV(cx->blk_oldcop));
760ac839
LW
1038 PerlIO_printf(Perl_debug_log, "BLK_OLDMARKSP = %ld\n", (long)cx->blk_oldmarksp);
1039 PerlIO_printf(Perl_debug_log, "BLK_OLDSCOPESP = %ld\n", (long)cx->blk_oldscopesp);
146174a9
CB
1040 PerlIO_printf(Perl_debug_log, "BLK_OLDPM = 0x%"UVxf"\n",
1041 PTR2UV(cx->blk_oldpm));
760ac839 1042 PerlIO_printf(Perl_debug_log, "BLK_GIMME = %s\n", cx->blk_gimme ? "LIST" : "SCALAR");
8990e307 1043 }
6b35e009 1044 switch (CxTYPE(cx)) {
8990e307
LW
1045 case CXt_NULL:
1046 case CXt_BLOCK:
1047 break;
146174a9 1048 case CXt_FORMAT:
f9c764c5
NC
1049 PerlIO_printf(Perl_debug_log, "BLK_FORMAT.CV = 0x%"UVxf"\n",
1050 PTR2UV(cx->blk_format.cv));
1051 PerlIO_printf(Perl_debug_log, "BLK_FORMAT.GV = 0x%"UVxf"\n",
1052 PTR2UV(cx->blk_format.gv));
1053 PerlIO_printf(Perl_debug_log, "BLK_FORMAT.DFOUTGV = 0x%"UVxf"\n",
1054 PTR2UV(cx->blk_format.dfoutgv));
1055 PerlIO_printf(Perl_debug_log, "BLK_FORMAT.HASARGS = %d\n",
bafb2adc 1056 (int)CxHASARGS(cx));
f9c764c5
NC
1057 PerlIO_printf(Perl_debug_log, "BLK_FORMAT.RETOP = 0x%"UVxf"\n",
1058 PTR2UV(cx->blk_format.retop));
146174a9 1059 break;
8990e307 1060 case CXt_SUB:
146174a9
CB
1061 PerlIO_printf(Perl_debug_log, "BLK_SUB.CV = 0x%"UVxf"\n",
1062 PTR2UV(cx->blk_sub.cv));
760ac839 1063 PerlIO_printf(Perl_debug_log, "BLK_SUB.OLDDEPTH = %ld\n",
8990e307 1064 (long)cx->blk_sub.olddepth);
760ac839 1065 PerlIO_printf(Perl_debug_log, "BLK_SUB.HASARGS = %d\n",
bafb2adc
NC
1066 (int)CxHASARGS(cx));
1067 PerlIO_printf(Perl_debug_log, "BLK_SUB.LVAL = %d\n", (int)CxLVAL(cx));
f39bc417
DM
1068 PerlIO_printf(Perl_debug_log, "BLK_SUB.RETOP = 0x%"UVxf"\n",
1069 PTR2UV(cx->blk_sub.retop));
8990e307
LW
1070 break;
1071 case CXt_EVAL:
760ac839 1072 PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_IN_EVAL = %ld\n",
85a64632 1073 (long)CxOLD_IN_EVAL(cx));
760ac839 1074 PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_OP_TYPE = %s (%s)\n",
85a64632
NC
1075 PL_op_name[CxOLD_OP_TYPE(cx)],
1076 PL_op_desc[CxOLD_OP_TYPE(cx)]);
0f79a09d
GS
1077 if (cx->blk_eval.old_namesv)
1078 PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_NAME = %s\n",
aa07b2f6 1079 SvPVX_const(cx->blk_eval.old_namesv));
146174a9
CB
1080 PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_EVAL_ROOT = 0x%"UVxf"\n",
1081 PTR2UV(cx->blk_eval.old_eval_root));
f39bc417
DM
1082 PerlIO_printf(Perl_debug_log, "BLK_EVAL.RETOP = 0x%"UVxf"\n",
1083 PTR2UV(cx->blk_eval.retop));
8990e307
LW
1084 break;
1085
3b719c58
NC
1086 case CXt_LOOP_FOR:
1087 case CXt_LOOP_PLAIN:
0cbdab38 1088 PerlIO_printf(Perl_debug_log, "BLK_LOOP.LABEL = %s\n", CxLABEL(cx));
760ac839 1089 PerlIO_printf(Perl_debug_log, "BLK_LOOP.RESETSP = %ld\n",
8990e307 1090 (long)cx->blk_loop.resetsp);
022eaa24
NC
1091 PerlIO_printf(Perl_debug_log, "BLK_LOOP.MY_OP = 0x%"UVxf"\n",
1092 PTR2UV(cx->blk_loop.my_op));
146174a9 1093 PerlIO_printf(Perl_debug_log, "BLK_LOOP.NEXT_OP = 0x%"UVxf"\n",
022eaa24 1094 PTR2UV(CX_LOOP_NEXTOP_GET(cx)));
760ac839 1095 PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERIX = %ld\n",
8990e307 1096 (long)cx->blk_loop.iterix);
146174a9
CB
1097 PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERARY = 0x%"UVxf"\n",
1098 PTR2UV(cx->blk_loop.iterary));
1099 PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERVAR = 0x%"UVxf"\n",
1100 PTR2UV(CxITERVAR(cx)));
1101 if (CxITERVAR(cx))
1102 PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERSAVE = 0x%"UVxf"\n",
1103 PTR2UV(cx->blk_loop.itersave));
1104 PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERLVAL = 0x%"UVxf"\n",
1105 PTR2UV(cx->blk_loop.iterlval));
8990e307
LW
1106 break;
1107
1108 case CXt_SUBST:
760ac839 1109 PerlIO_printf(Perl_debug_log, "SB_ITERS = %ld\n",
8990e307 1110 (long)cx->sb_iters);
760ac839 1111 PerlIO_printf(Perl_debug_log, "SB_MAXITERS = %ld\n",
8990e307 1112 (long)cx->sb_maxiters);
35ef4773
GS
1113 PerlIO_printf(Perl_debug_log, "SB_RFLAGS = %ld\n",
1114 (long)cx->sb_rflags);
760ac839 1115 PerlIO_printf(Perl_debug_log, "SB_ONCE = %ld\n",
c5bed6a7 1116 (long)CxONCE(cx));
760ac839 1117 PerlIO_printf(Perl_debug_log, "SB_ORIG = %s\n",
8990e307 1118 cx->sb_orig);
146174a9
CB
1119 PerlIO_printf(Perl_debug_log, "SB_DSTR = 0x%"UVxf"\n",
1120 PTR2UV(cx->sb_dstr));
1121 PerlIO_printf(Perl_debug_log, "SB_TARG = 0x%"UVxf"\n",
1122 PTR2UV(cx->sb_targ));
1123 PerlIO_printf(Perl_debug_log, "SB_S = 0x%"UVxf"\n",
1124 PTR2UV(cx->sb_s));
1125 PerlIO_printf(Perl_debug_log, "SB_M = 0x%"UVxf"\n",
1126 PTR2UV(cx->sb_m));
1127 PerlIO_printf(Perl_debug_log, "SB_STREND = 0x%"UVxf"\n",
1128 PTR2UV(cx->sb_strend));
1129 PerlIO_printf(Perl_debug_log, "SB_RXRES = 0x%"UVxf"\n",
1130 PTR2UV(cx->sb_rxres));
8990e307
LW
1131 break;
1132 }
65e66c80 1133#else
96a5add6 1134 PERL_UNUSED_CONTEXT;
65e66c80 1135 PERL_UNUSED_ARG(cx);
17c3b450 1136#endif /* DEBUGGING */
35ff7856 1137}
241d1a3b
NC
1138
1139/*
1140 * Local variables:
1141 * c-indentation-style: bsd
1142 * c-basic-offset: 4
1143 * indent-tabs-mode: t
1144 * End:
1145 *
37442d52
RGS
1146 * ex: set ts=8 sts=4 sw=4 noet:
1147 */