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handle magic in local correctly
[perl5.git] / scope.c
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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{
a3b680e6 70 const 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 141 while (PL_tmps_ix > myfloor) { /* clean up after last statement */
901017d6 142 SV* const sv = PL_tmps_stack[PL_tmps_ix];
3280af22 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 153{
901017d6
AL
154 SV * const osv = *sptr;
155 register SV * const sv = *sptr = NEWSV(0,0);
79072805 156
a0d0e21e 157 if (SvTYPE(osv) >= SVt_PVMG && SvMAGIC(osv) && SvTYPE(osv) != SVt_PVGV) {
a0d0e21e 158 if (SvGMAGICAL(osv)) {
35a4481c 159 const bool oldtainted = PL_tainted;
a0d0e21e 160 SvFLAGS(osv) |= (SvFLAGS(osv) &
8aacddc1 161 (SVp_NOK|SVp_POK)) >> PRIVSHIFT;
3280af22 162 PL_tainted = oldtainted;
a0d0e21e 163 }
0cbee0a4 164 mg_localize(osv, sv);
79072805
LW
165 }
166 return sv;
167}
168
7a4c00b4 169SV *
864dbfa3 170Perl_save_scalar(pTHX_ GV *gv)
7a4c00b4 171{
4e4c362e 172 SV **sptr = &GvSV(gv);
0cbee0a4 173 SvGETMAGIC(*sptr);
7a4c00b4 174 SSCHECK(3);
4e4c362e
GS
175 SSPUSHPTR(SvREFCNT_inc(gv));
176 SSPUSHPTR(SvREFCNT_inc(*sptr));
7a4c00b4 177 SSPUSHINT(SAVEt_SV);
4e4c362e 178 return save_scalar_at(sptr);
7a4c00b4
PP
179}
180
181SV*
864dbfa3 182Perl_save_svref(pTHX_ SV **sptr)
7a4c00b4 183{
0cbee0a4 184 SvGETMAGIC(*sptr);
7a4c00b4
PP
185 SSCHECK(3);
186 SSPUSHPTR(sptr);
4e4c362e 187 SSPUSHPTR(SvREFCNT_inc(*sptr));
7a4c00b4
PP
188 SSPUSHINT(SAVEt_SVREF);
189 return save_scalar_at(sptr);
190}
191
f4dd75d9 192/* Like save_sptr(), but also SvREFCNT_dec()s the new value. Can be used to
b9d12d37
GS
193 * restore a global SV to its prior contents, freeing new value. */
194void
864dbfa3 195Perl_save_generic_svref(pTHX_ SV **sptr)
b9d12d37 196{
b9d12d37
GS
197 SSCHECK(3);
198 SSPUSHPTR(sptr);
199 SSPUSHPTR(SvREFCNT_inc(*sptr));
200 SSPUSHINT(SAVEt_GENERIC_SVREF);
201}
202
f4dd75d9
GS
203/* Like save_pptr(), but also Safefree()s the new value if it is different
204 * from the old one. Can be used to restore a global char* to its prior
205 * contents, freeing new value. */
206void
207Perl_save_generic_pvref(pTHX_ char **str)
208{
f4dd75d9
GS
209 SSCHECK(3);
210 SSPUSHPTR(str);
211 SSPUSHPTR(*str);
212 SSPUSHINT(SAVEt_GENERIC_PVREF);
213}
214
05ec9bb3
NIS
215/* Like save_generic_pvref(), but uses PerlMemShared_free() rather than Safefree().
216 * Can be used to restore a shared global char* to its prior
217 * contents, freeing new value. */
218void
219Perl_save_shared_pvref(pTHX_ char **str)
220{
221 SSCHECK(3);
222 SSPUSHPTR(str);
223 SSPUSHPTR(*str);
224 SSPUSHINT(SAVEt_SHARED_PVREF);
225}
226
14f338dc
DM
227/* set the SvFLAGS specified by mask to the values in val */
228
229void
230Perl_save_set_svflags(pTHX_ SV* sv, U32 mask, U32 val)
231{
232 SSCHECK(4);
233 SSPUSHPTR(sv);
234 SSPUSHINT(mask);
235 SSPUSHINT(val);
236 SSPUSHINT(SAVEt_SET_SVFLAGS);
237}
238
79072805 239void
864dbfa3 240Perl_save_gp(pTHX_ GV *gv, I32 empty)
79072805 241{
4b3c1a47 242 SSGROW(6);
fb73857a 243 SSPUSHIV((IV)SvLEN(gv));
b162af07 244 SvLEN_set(gv, 0); /* forget that anything was allocated here */
fb73857a 245 SSPUSHIV((IV)SvCUR(gv));
aa07b2f6 246 SSPUSHPTR(SvPVX_const(gv));
fb73857a 247 SvPOK_off(gv);
4633a7c4 248 SSPUSHPTR(SvREFCNT_inc(gv));
5f05dabc 249 SSPUSHPTR(GvGP(gv));
79072805
LW
250 SSPUSHINT(SAVEt_GP);
251
5f05dabc
PP
252 if (empty) {
253 register GP *gp;
fae75791 254
146174a9
CB
255 Newz(602, gp, 1, GP);
256
fae75791 257 if (GvCVu(gv))
3280af22 258 PL_sub_generation++; /* taking a method out of circulation */
146174a9
CB
259 if (GvIOp(gv) && (IoFLAGS(GvIOp(gv)) & IOf_ARGV)) {
260 gp->gp_io = newIO();
261 IoFLAGS(gp->gp_io) |= IOf_ARGV|IOf_START;
262 }
44a8e56a 263 GvGP(gv) = gp_ref(gp);
5f05dabc 264 GvSV(gv) = NEWSV(72,0);
146174a9 265 GvLINE(gv) = CopLINE(PL_curcop);
07409e01
NC
266 /* XXX Ideally this cast would be replaced with a change to const char*
267 in the struct. */
268 GvFILE(gv) = CopFILE(PL_curcop) ? CopFILE(PL_curcop) : (char *) "";
5f05dabc
PP
269 GvEGV(gv) = gv;
270 }
271 else {
44a8e56a 272 gp_ref(GvGP(gv));
5f05dabc
PP
273 GvINTRO_on(gv);
274 }
79072805 275}
79072805 276
79072805 277AV *
864dbfa3 278Perl_save_ary(pTHX_ GV *gv)
79072805 279{
901017d6 280 AV * const oav = GvAVn(gv);
67a38de0 281 AV *av;
fb73857a 282
67a38de0
NIS
283 if (!AvREAL(oav) && AvREIFY(oav))
284 av_reify(oav);
79072805
LW
285 SSCHECK(3);
286 SSPUSHPTR(gv);
67a38de0 287 SSPUSHPTR(oav);
79072805
LW
288 SSPUSHINT(SAVEt_AV);
289
290 GvAV(gv) = Null(AV*);
fb73857a 291 av = GvAVn(gv);
0cbee0a4
DM
292 if (SvMAGIC(oav))
293 mg_localize((SV*)oav, (SV*)av);
fb73857a 294 return av;
79072805
LW
295}
296
297HV *
864dbfa3 298Perl_save_hash(pTHX_ GV *gv)
79072805 299{
fb73857a
PP
300 HV *ohv, *hv;
301
79072805
LW
302 SSCHECK(3);
303 SSPUSHPTR(gv);
fb73857a 304 SSPUSHPTR(ohv = GvHVn(gv));
79072805
LW
305 SSPUSHINT(SAVEt_HV);
306
307 GvHV(gv) = Null(HV*);
fb73857a 308 hv = GvHVn(gv);
0cbee0a4
DM
309 if (SvMAGIC(ohv))
310 mg_localize((SV*)ohv, (SV*)hv);
fb73857a 311 return hv;
79072805
LW
312}
313
314void
864dbfa3 315Perl_save_item(pTHX_ register SV *item)
79072805 316{
901017d6 317 register SV * const sv = newSVsv(item);
79072805
LW
318
319 SSCHECK(3);
320 SSPUSHPTR(item); /* remember the pointer */
79072805
LW
321 SSPUSHPTR(sv); /* remember the value */
322 SSPUSHINT(SAVEt_ITEM);
323}
324
325void
864dbfa3 326Perl_save_int(pTHX_ int *intp)
79072805
LW
327{
328 SSCHECK(3);
329 SSPUSHINT(*intp);
330 SSPUSHPTR(intp);
331 SSPUSHINT(SAVEt_INT);
332}
333
334void
864dbfa3 335Perl_save_long(pTHX_ long int *longp)
85e6fe83
LW
336{
337 SSCHECK(3);
338 SSPUSHLONG(*longp);
339 SSPUSHPTR(longp);
340 SSPUSHINT(SAVEt_LONG);
341}
342
343void
9febdf04
RH
344Perl_save_bool(pTHX_ bool *boolp)
345{
346 SSCHECK(3);
347 SSPUSHBOOL(*boolp);
348 SSPUSHPTR(boolp);
349 SSPUSHINT(SAVEt_BOOL);
350}
351
352void
864dbfa3 353Perl_save_I32(pTHX_ I32 *intp)
79072805
LW
354{
355 SSCHECK(3);
356 SSPUSHINT(*intp);
357 SSPUSHPTR(intp);
358 SSPUSHINT(SAVEt_I32);
359}
360
a0d0e21e 361void
864dbfa3 362Perl_save_I16(pTHX_ I16 *intp)
55497cff
PP
363{
364 SSCHECK(3);
365 SSPUSHINT(*intp);
366 SSPUSHPTR(intp);
367 SSPUSHINT(SAVEt_I16);
368}
369
370void
146174a9
CB
371Perl_save_I8(pTHX_ I8 *bytep)
372{
146174a9
CB
373 SSCHECK(3);
374 SSPUSHINT(*bytep);
375 SSPUSHPTR(bytep);
376 SSPUSHINT(SAVEt_I8);
377}
378
379void
864dbfa3 380Perl_save_iv(pTHX_ IV *ivp)
a0d0e21e
LW
381{
382 SSCHECK(3);
4aa0a1f7 383 SSPUSHIV(*ivp);
a0d0e21e
LW
384 SSPUSHPTR(ivp);
385 SSPUSHINT(SAVEt_IV);
386}
387
85e6fe83
LW
388/* Cannot use save_sptr() to store a char* since the SV** cast will
389 * force word-alignment and we'll miss the pointer.
390 */
391void
864dbfa3 392Perl_save_pptr(pTHX_ char **pptr)
85e6fe83
LW
393{
394 SSCHECK(3);
395 SSPUSHPTR(*pptr);
396 SSPUSHPTR(pptr);
397 SSPUSHINT(SAVEt_PPTR);
398}
399
79072805 400void
146174a9
CB
401Perl_save_vptr(pTHX_ void *ptr)
402{
146174a9
CB
403 SSCHECK(3);
404 SSPUSHPTR(*(char**)ptr);
405 SSPUSHPTR(ptr);
406 SSPUSHINT(SAVEt_VPTR);
407}
408
409void
864dbfa3 410Perl_save_sptr(pTHX_ SV **sptr)
79072805
LW
411{
412 SSCHECK(3);
413 SSPUSHPTR(*sptr);
414 SSPUSHPTR(sptr);
415 SSPUSHINT(SAVEt_SPTR);
416}
417
c3564e5c
GS
418void
419Perl_save_padsv(pTHX_ PADOFFSET off)
420{
c3564e5c 421 SSCHECK(4);
f3548bdc 422 ASSERT_CURPAD_ACTIVE("save_padsv");
c3564e5c 423 SSPUSHPTR(PL_curpad[off]);
f3548bdc 424 SSPUSHPTR(PL_comppad);
c3564e5c
GS
425 SSPUSHLONG((long)off);
426 SSPUSHINT(SAVEt_PADSV);
427}
428
54b9620d 429SV **
864dbfa3 430Perl_save_threadsv(pTHX_ PADOFFSET i)
54b9620d 431{
cea2e8a9 432 Perl_croak(aTHX_ "panic: save_threadsv called in non-threaded perl");
73d840c0 433 (void)i;
0dbb1585 434 NORETURN_FUNCTION_END;
54b9620d
MB
435}
436
79072805 437void
864dbfa3 438Perl_save_nogv(pTHX_ GV *gv)
79072805
LW
439{
440 SSCHECK(2);
441 SSPUSHPTR(gv);
442 SSPUSHINT(SAVEt_NSTAB);
443}
444
445void
864dbfa3 446Perl_save_hptr(pTHX_ HV **hptr)
79072805
LW
447{
448 SSCHECK(3);
85e6fe83 449 SSPUSHPTR(*hptr);
79072805
LW
450 SSPUSHPTR(hptr);
451 SSPUSHINT(SAVEt_HPTR);
452}
453
454void
864dbfa3 455Perl_save_aptr(pTHX_ AV **aptr)
79072805
LW
456{
457 SSCHECK(3);
85e6fe83 458 SSPUSHPTR(*aptr);
79072805
LW
459 SSPUSHPTR(aptr);
460 SSPUSHINT(SAVEt_APTR);
461}
462
463void
864dbfa3 464Perl_save_freesv(pTHX_ SV *sv)
8990e307
LW
465{
466 SSCHECK(2);
467 SSPUSHPTR(sv);
468 SSPUSHINT(SAVEt_FREESV);
469}
470
471void
26d9b02f
JH
472Perl_save_mortalizesv(pTHX_ SV *sv)
473{
474 SSCHECK(2);
475 SSPUSHPTR(sv);
476 SSPUSHINT(SAVEt_MORTALIZESV);
477}
478
479void
864dbfa3 480Perl_save_freeop(pTHX_ OP *o)
8990e307
LW
481{
482 SSCHECK(2);
11343788 483 SSPUSHPTR(o);
8990e307
LW
484 SSPUSHINT(SAVEt_FREEOP);
485}
486
487void
864dbfa3 488Perl_save_freepv(pTHX_ char *pv)
8990e307
LW
489{
490 SSCHECK(2);
491 SSPUSHPTR(pv);
492 SSPUSHINT(SAVEt_FREEPV);
493}
494
495void
864dbfa3 496Perl_save_clearsv(pTHX_ SV **svp)
8990e307 497{
f3548bdc 498 ASSERT_CURPAD_ACTIVE("save_clearsv");
8990e307 499 SSCHECK(2);
3280af22 500 SSPUSHLONG((long)(svp-PL_curpad));
8990e307 501 SSPUSHINT(SAVEt_CLEARSV);
d9d18af6 502 SvPADSTALE_off(*svp); /* mark lexical as active */
8990e307
LW
503}
504
505void
864dbfa3 506Perl_save_delete(pTHX_ HV *hv, char *key, I32 klen)
8990e307
LW
507{
508 SSCHECK(4);
509 SSPUSHINT(klen);
510 SSPUSHPTR(key);
4e4c362e 511 SSPUSHPTR(SvREFCNT_inc(hv));
8990e307
LW
512 SSPUSHINT(SAVEt_DELETE);
513}
514
515void
864dbfa3 516Perl_save_list(pTHX_ register SV **sarg, I32 maxsarg)
79072805 517{
79072805
LW
518 register I32 i;
519
79072805 520 for (i = 1; i <= maxsarg; i++) {
901017d6 521 register SV * const sv = NEWSV(0,0);
79072805 522 sv_setsv(sv,sarg[i]);
f46d017c
GS
523 SSCHECK(3);
524 SSPUSHPTR(sarg[i]); /* remember the pointer */
79072805
LW
525 SSPUSHPTR(sv); /* remember the value */
526 SSPUSHINT(SAVEt_ITEM);
527 }
528}
529
530void
146174a9 531Perl_save_destructor(pTHX_ DESTRUCTORFUNC_NOCONTEXT_t f, void* p)
a0d0e21e
LW
532{
533 SSCHECK(3);
534 SSPUSHDPTR(f);
535 SSPUSHPTR(p);
536 SSPUSHINT(SAVEt_DESTRUCTOR);
537}
538
539void
146174a9
CB
540Perl_save_destructor_x(pTHX_ DESTRUCTORFUNC_t f, void* p)
541{
146174a9
CB
542 SSCHECK(3);
543 SSPUSHDXPTR(f);
544 SSPUSHPTR(p);
545 SSPUSHINT(SAVEt_DESTRUCTOR_X);
546}
547
548void
35a4481c 549Perl_save_aelem(pTHX_ const AV *av, I32 idx, SV **sptr)
4e4c362e 550{
bfc4de9f 551 SV *sv;
0cbee0a4 552 SvGETMAGIC(*sptr);
4e4c362e
GS
553 SSCHECK(4);
554 SSPUSHPTR(SvREFCNT_inc(av));
555 SSPUSHINT(idx);
556 SSPUSHPTR(SvREFCNT_inc(*sptr));
557 SSPUSHINT(SAVEt_AELEM);
5dd42e15
DM
558 /* if it gets reified later, the restore will have the wrong refcnt */
559 if (!AvREAL(av) && AvREIFY(av))
7fc63493 560 (void)SvREFCNT_inc(*sptr);
4e4c362e 561 save_scalar_at(sptr);
bfc4de9f
DM
562 sv = *sptr;
563 /* If we're localizing a tied array element, this new sv
564 * won't actually be stored in the array - so it won't get
565 * reaped when the localize ends. Ensure it gets reaped by
566 * mortifying it instead. DAPM */
567 if (SvTIED_mg(sv, PERL_MAGIC_tiedelem))
568 sv_2mortal(sv);
4e4c362e
GS
569}
570
571void
e1ec3a88 572Perl_save_helem(pTHX_ HV *hv, SV *key, SV **sptr)
4e4c362e 573{
bfc4de9f 574 SV *sv;
0cbee0a4 575 SvGETMAGIC(*sptr);
4e4c362e
GS
576 SSCHECK(4);
577 SSPUSHPTR(SvREFCNT_inc(hv));
578 SSPUSHPTR(SvREFCNT_inc(key));
579 SSPUSHPTR(SvREFCNT_inc(*sptr));
580 SSPUSHINT(SAVEt_HELEM);
581 save_scalar_at(sptr);
bfc4de9f
DM
582 sv = *sptr;
583 /* If we're localizing a tied hash element, this new sv
584 * won't actually be stored in the hash - so it won't get
585 * reaped when the localize ends. Ensure it gets reaped by
586 * mortifying it instead. DAPM */
587 if (SvTIED_mg(sv, PERL_MAGIC_tiedelem))
588 sv_2mortal(sv);
4e4c362e
GS
589}
590
591void
864dbfa3 592Perl_save_op(pTHX)
462e5cf6 593{
462e5cf6 594 SSCHECK(2);
533c011a 595 SSPUSHPTR(PL_op);
462e5cf6
MB
596 SSPUSHINT(SAVEt_OP);
597}
598
455ece5e 599I32
864dbfa3 600Perl_save_alloc(pTHX_ I32 size, I32 pad)
455ece5e 601{
35a4481c 602 register const I32 start = pad + ((char*)&PL_savestack[PL_savestack_ix]
8aacddc1 603 - (char*)PL_savestack);
35a4481c 604 register const I32 elems = 1 + ((size + pad - 1) / sizeof(*PL_savestack));
455ece5e
AD
605
606 /* SSCHECK may not be good enough */
607 while (PL_savestack_ix + elems + 2 > PL_savestack_max)
8aacddc1 608 savestack_grow();
455ece5e
AD
609
610 PL_savestack_ix += elems;
611 SSPUSHINT(elems);
612 SSPUSHINT(SAVEt_ALLOC);
613 return start;
614}
615
462e5cf6 616void
864dbfa3 617Perl_leave_scope(pTHX_ I32 base)
79072805
LW
618{
619 register SV *sv;
620 register SV *value;
621 register GV *gv;
622 register AV *av;
623 register HV *hv;
624 register void* ptr;
f4dd75d9 625 register char* str;
161b7d16 626 I32 i;
79072805
LW
627
628 if (base < -1)
cea2e8a9 629 Perl_croak(aTHX_ "panic: corrupt saved stack index");
3280af22 630 while (PL_savestack_ix > base) {
79072805
LW
631 switch (SSPOPINT) {
632 case SAVEt_ITEM: /* normal string */
633 value = (SV*)SSPOPPTR;
634 sv = (SV*)SSPOPPTR;
635 sv_replace(sv,value);
3280af22 636 PL_localizing = 2;
79072805 637 SvSETMAGIC(sv);
3280af22 638 PL_localizing = 0;
79072805 639 break;
8aacddc1 640 case SAVEt_SV: /* scalar reference */
79072805
LW
641 value = (SV*)SSPOPPTR;
642 gv = (GV*)SSPOPPTR;
7a4c00b4 643 ptr = &GvSV(gv);
5dd42e15 644 av = (AV*)gv; /* what to refcnt_dec */
7a4c00b4 645 goto restore_sv;
8aacddc1 646 case SAVEt_GENERIC_PVREF: /* generic pv */
f4dd75d9
GS
647 str = (char*)SSPOPPTR;
648 ptr = SSPOPPTR;
649 if (*(char**)ptr != str) {
650 Safefree(*(char**)ptr);
651 *(char**)ptr = str;
652 }
653 break;
05ec9bb3
NIS
654 case SAVEt_SHARED_PVREF: /* shared pv */
655 str = (char*)SSPOPPTR;
656 ptr = SSPOPPTR;
657 if (*(char**)ptr != str) {
5e54c26f 658#ifdef NETWARE
9ecbcc42 659 PerlMem_free(*(char**)ptr);
5e54c26f 660#else
05ec9bb3 661 PerlMemShared_free(*(char**)ptr);
5e54c26f 662#endif
05ec9bb3
NIS
663 *(char**)ptr = str;
664 }
665 break;
8aacddc1 666 case SAVEt_GENERIC_SVREF: /* generic sv */
b9d12d37
GS
667 value = (SV*)SSPOPPTR;
668 ptr = SSPOPPTR;
f4dd75d9
GS
669 sv = *(SV**)ptr;
670 *(SV**)ptr = value;
671 SvREFCNT_dec(sv);
b9d12d37
GS
672 SvREFCNT_dec(value);
673 break;
8aacddc1 674 case SAVEt_SVREF: /* scalar reference */
7a4c00b4 675 value = (SV*)SSPOPPTR;
79072805 676 ptr = SSPOPPTR;
5dd42e15 677 av = Nullav; /* what to refcnt_dec */
7a4c00b4 678 restore_sv:
79072805 679 sv = *(SV**)ptr;
146174a9 680 DEBUG_S(PerlIO_printf(Perl_debug_log,
54b9620d 681 "restore svref: %p %p:%s -> %p:%s\n",
8aacddc1 682 ptr, sv, SvPEEK(sv), value, SvPEEK(value)));
a0d0e21e 683 *(SV**)ptr = value;
db733481 684 SvREFCNT_dec(sv);
3280af22 685 PL_localizing = 2;
a0d0e21e 686 SvSETMAGIC(value);
3280af22 687 PL_localizing = 0;
4e4c362e 688 SvREFCNT_dec(value);
5dd42e15
DM
689 if (av) /* actually an av, hv or gv */
690 SvREFCNT_dec(av);
8aacddc1
NIS
691 break;
692 case SAVEt_AV: /* array reference */
79072805
LW
693 av = (AV*)SSPOPPTR;
694 gv = (GV*)SSPOPPTR;
fb73857a 695 if (GvAV(gv)) {
35a4481c 696 AV * const goner = GvAV(gv);
404a4710
NC
697 /* FIXME - this is a temporary hack until we work out what
698 the correct behaviour for magic should be. */
699 sv_unmagic((SV*)goner, PERL_MAGIC_arylen_p);
b162af07 700 SvMAGIC_set(av, SvMAGIC(goner));
32da55ab 701 SvFLAGS((SV*)av) |= SvMAGICAL(goner);
fb73857a 702 SvMAGICAL_off(goner);
b162af07 703 SvMAGIC_set(goner, NULL);
fb73857a
PP
704 SvREFCNT_dec(goner);
705 }
8aacddc1 706 GvAV(gv) = av;
fb73857a 707 if (SvMAGICAL(av)) {
3280af22 708 PL_localizing = 2;
fb73857a 709 SvSETMAGIC((SV*)av);
3280af22 710 PL_localizing = 0;
fb73857a 711 }
8aacddc1
NIS
712 break;
713 case SAVEt_HV: /* hash reference */
79072805
LW
714 hv = (HV*)SSPOPPTR;
715 gv = (GV*)SSPOPPTR;
fb73857a 716 if (GvHV(gv)) {
35a4481c 717 HV * const goner = GvHV(gv);
b162af07 718 SvMAGIC_set(hv, SvMAGIC(goner));
fb73857a
PP
719 SvFLAGS(hv) |= SvMAGICAL(goner);
720 SvMAGICAL_off(goner);
b162af07 721 SvMAGIC_set(goner, NULL);
fb73857a
PP
722 SvREFCNT_dec(goner);
723 }
8aacddc1 724 GvHV(gv) = hv;
fb73857a 725 if (SvMAGICAL(hv)) {
3280af22 726 PL_localizing = 2;
fb73857a 727 SvSETMAGIC((SV*)hv);
3280af22 728 PL_localizing = 0;
fb73857a 729 }
8aacddc1 730 break;
79072805
LW
731 case SAVEt_INT: /* int reference */
732 ptr = SSPOPPTR;
733 *(int*)ptr = (int)SSPOPINT;
734 break;
85e6fe83
LW
735 case SAVEt_LONG: /* long reference */
736 ptr = SSPOPPTR;
737 *(long*)ptr = (long)SSPOPLONG;
738 break;
9febdf04
RH
739 case SAVEt_BOOL: /* bool reference */
740 ptr = SSPOPPTR;
741 *(bool*)ptr = (bool)SSPOPBOOL;
742 break;
79072805
LW
743 case SAVEt_I32: /* I32 reference */
744 ptr = SSPOPPTR;
745 *(I32*)ptr = (I32)SSPOPINT;
746 break;
55497cff
PP
747 case SAVEt_I16: /* I16 reference */
748 ptr = SSPOPPTR;
749 *(I16*)ptr = (I16)SSPOPINT;
750 break;
146174a9
CB
751 case SAVEt_I8: /* I8 reference */
752 ptr = SSPOPPTR;
753 *(I8*)ptr = (I8)SSPOPINT;
754 break;
a0d0e21e
LW
755 case SAVEt_IV: /* IV reference */
756 ptr = SSPOPPTR;
757 *(IV*)ptr = (IV)SSPOPIV;
758 break;
79072805
LW
759 case SAVEt_SPTR: /* SV* reference */
760 ptr = SSPOPPTR;
761 *(SV**)ptr = (SV*)SSPOPPTR;
762 break;
146174a9 763 case SAVEt_VPTR: /* random* reference */
85e6fe83
LW
764 case SAVEt_PPTR: /* char* reference */
765 ptr = SSPOPPTR;
766 *(char**)ptr = (char*)SSPOPPTR;
767 break;
79072805
LW
768 case SAVEt_HPTR: /* HV* reference */
769 ptr = SSPOPPTR;
770 *(HV**)ptr = (HV*)SSPOPPTR;
771 break;
772 case SAVEt_APTR: /* AV* reference */
773 ptr = SSPOPPTR;
774 *(AV**)ptr = (AV*)SSPOPPTR;
775 break;
776 case SAVEt_NSTAB:
777 gv = (GV*)SSPOPPTR;
1f96a9ed 778 (void)sv_clear((SV*)gv);
79072805 779 break;
fb73857a 780 case SAVEt_GP: /* scalar reference */
79072805
LW
781 ptr = SSPOPPTR;
782 gv = (GV*)SSPOPPTR;
aa07b2f6
SP
783 if (SvPVX_const(gv) && SvLEN(gv) > 0) {
784 Safefree(SvPVX_const(gv));
8aacddc1 785 }
f880fe2f 786 SvPV_set(gv, (char *)SSPOPPTR);
b162af07
SP
787 SvCUR_set(gv, (STRLEN)SSPOPIV);
788 SvLEN_set(gv, (STRLEN)SSPOPIV);
8aacddc1
NIS
789 gp_free(gv);
790 GvGP(gv) = (GP*)ptr;
fae75791 791 if (GvCVu(gv))
3280af22 792 PL_sub_generation++; /* putting a method back into circulation */
4633a7c4 793 SvREFCNT_dec(gv);
8aacddc1 794 break;
8990e307
LW
795 case SAVEt_FREESV:
796 ptr = SSPOPPTR;
797 SvREFCNT_dec((SV*)ptr);
798 break;
26d9b02f
JH
799 case SAVEt_MORTALIZESV:
800 ptr = SSPOPPTR;
801 sv_2mortal((SV*)ptr);
802 break;
8990e307
LW
803 case SAVEt_FREEOP:
804 ptr = SSPOPPTR;
f3548bdc 805 ASSERT_CURPAD_LEGAL("SAVEt_FREEOP"); /* XXX DAPM tmp */
8990e307
LW
806 op_free((OP*)ptr);
807 break;
808 case SAVEt_FREEPV:
809 ptr = SSPOPPTR;
1df70142 810 Safefree(ptr);
8990e307
LW
811 break;
812 case SAVEt_CLEARSV:
3280af22 813 ptr = (void*)&PL_curpad[SSPOPLONG];
8990e307 814 sv = *(SV**)ptr;
dd2155a4
DM
815
816 DEBUG_Xv(PerlIO_printf(Perl_debug_log,
f3548bdc
DM
817 "Pad 0x%"UVxf"[0x%"UVxf"] clearsv: %ld sv=0x%"UVxf"<%"IVdf"> %s\n",
818 PTR2UV(PL_comppad), PTR2UV(PL_curpad),
819 (long)((SV **)ptr-PL_curpad), PTR2UV(sv), (IV)SvREFCNT(sv),
dd2155a4
DM
820 (SvREFCNT(sv) <= 1 && !SvOBJECT(sv)) ? "clear" : "abandon"
821 ));
822
bc44cdaf
GS
823 /* Can clear pad variable in place? */
824 if (SvREFCNT(sv) <= 1 && !SvOBJECT(sv)) {
8aacddc1
NIS
825 /*
826 * if a my variable that was made readonly is going out of
827 * scope, we want to remove the readonlyness so that it can
828 * go out of scope quietly
8aacddc1 829 */
a26e96df 830 if (SvPADMY(sv) && !SvFAKE(sv))
8aacddc1
NIS
831 SvREADONLY_off(sv);
832
6fc92669 833 if (SvTHINKFIRST(sv))
840a7b70 834 sv_force_normal_flags(sv, SV_IMMEDIATE_UNREF);
a0d0e21e
LW
835 if (SvMAGICAL(sv))
836 mg_free(sv);
8990e307
LW
837
838 switch (SvTYPE(sv)) {
839 case SVt_NULL:
840 break;
841 case SVt_PVAV:
44a8e56a 842 av_clear((AV*)sv);
8990e307
LW
843 break;
844 case SVt_PVHV:
44a8e56a 845 hv_clear((HV*)sv);
8990e307
LW
846 break;
847 case SVt_PVCV:
cea2e8a9 848 Perl_croak(aTHX_ "panic: leave_scope pad code");
8990e307 849 default:
0c34ef67 850 SvOK_off(sv);
8990e307
LW
851 break;
852 }
d9d18af6 853 SvPADSTALE_on(sv); /* mark as no longer live */
8990e307
LW
854 }
855 else { /* Someone has a claim on this, so abandon it. */
35a4481c 856 const U32 padflags = SvFLAGS(sv) & (SVs_PADMY|SVs_PADTMP);
8990e307
LW
857 switch (SvTYPE(sv)) { /* Console ourselves with a new value */
858 case SVt_PVAV: *(SV**)ptr = (SV*)newAV(); break;
859 case SVt_PVHV: *(SV**)ptr = (SV*)newHV(); break;
860 default: *(SV**)ptr = NEWSV(0,0); break;
861 }
53868620 862 SvREFCNT_dec(sv); /* Cast current value to the winds. */
d9d18af6
DM
863 /* preserve pad nature, but also mark as not live
864 * for any closure capturing */
2740392c 865 SvFLAGS(*(SV**)ptr) |= padflags | SVs_PADSTALE;
8990e307
LW
866 }
867 break;
868 case SAVEt_DELETE:
869 ptr = SSPOPPTR;
870 hv = (HV*)ptr;
871 ptr = SSPOPPTR;
748a9306 872 (void)hv_delete(hv, (char*)ptr, (U32)SSPOPINT, G_DISCARD);
4e4c362e 873 SvREFCNT_dec(hv);
8aacddc1 874 Safefree(ptr);
8990e307 875 break;
a0d0e21e
LW
876 case SAVEt_DESTRUCTOR:
877 ptr = SSPOPPTR;
146174a9
CB
878 (*SSPOPDPTR)(ptr);
879 break;
880 case SAVEt_DESTRUCTOR_X:
881 ptr = SSPOPPTR;
acfe0abc 882 (*SSPOPDXPTR)(aTHX_ ptr);
a0d0e21e
LW
883 break;
884 case SAVEt_REGCONTEXT:
455ece5e 885 case SAVEt_ALLOC:
161b7d16 886 i = SSPOPINT;
3280af22 887 PL_savestack_ix -= i; /* regexp must have croaked */
a0d0e21e 888 break;
55497cff 889 case SAVEt_STACK_POS: /* Position on Perl stack */
161b7d16 890 i = SSPOPINT;
3280af22 891 PL_stack_sp = PL_stack_base + i;
55497cff 892 break;
161b7d16
SM
893 case SAVEt_AELEM: /* array element */
894 value = (SV*)SSPOPPTR;
895 i = SSPOPINT;
896 av = (AV*)SSPOPPTR;
5dd42e15
DM
897 if (!AvREAL(av) && AvREIFY(av)) /* undo reify guard */
898 SvREFCNT_dec(value);
161b7d16 899 ptr = av_fetch(av,i,1);
4e4c362e
GS
900 if (ptr) {
901 sv = *(SV**)ptr;
3280af22 902 if (sv && sv != &PL_sv_undef) {
14befaf4 903 if (SvTIED_mg((SV*)av, PERL_MAGIC_tied))
4e4c362e 904 (void)SvREFCNT_inc(sv);
4e4c362e
GS
905 goto restore_sv;
906 }
907 }
908 SvREFCNT_dec(av);
909 SvREFCNT_dec(value);
910 break;
161b7d16
SM
911 case SAVEt_HELEM: /* hash element */
912 value = (SV*)SSPOPPTR;
9002cb76 913 sv = (SV*)SSPOPPTR;
161b7d16
SM
914 hv = (HV*)SSPOPPTR;
915 ptr = hv_fetch_ent(hv, sv, 1, 0);
4e4c362e 916 if (ptr) {
35a4481c 917 const SV * const oval = HeVAL((HE*)ptr);
3280af22 918 if (oval && oval != &PL_sv_undef) {
4e4c362e 919 ptr = &HeVAL((HE*)ptr);
14befaf4 920 if (SvTIED_mg((SV*)hv, PERL_MAGIC_tied))
4e4c362e 921 (void)SvREFCNT_inc(*(SV**)ptr);
4e4c362e 922 SvREFCNT_dec(sv);
5dd42e15 923 av = (AV*)hv; /* what to refcnt_dec */
4e4c362e
GS
924 goto restore_sv;
925 }
926 }
927 SvREFCNT_dec(hv);
928 SvREFCNT_dec(sv);
929 SvREFCNT_dec(value);
930 break;
462e5cf6 931 case SAVEt_OP:
533c011a 932 PL_op = (OP*)SSPOPPTR;
462e5cf6 933 break;
25eaa213 934 case SAVEt_HINTS:
045ac317
RGS
935 if ((PL_hints & HINT_LOCALIZE_HH) && GvHV(PL_hintgv)) {
936 SvREFCNT_dec((SV*)GvHV(PL_hintgv));
937 GvHV(PL_hintgv) = NULL;
938 }
3280af22 939 *(I32*)&PL_hints = (I32)SSPOPINT;
dfa41748
DM
940 if (PL_hints & HINT_LOCALIZE_HH) {
941 SvREFCNT_dec((SV*)GvHV(PL_hintgv));
942 GvHV(PL_hintgv) = (HV*)SSPOPPTR;
943 }
944
b3ac6de7 945 break;
cb50131a 946 case SAVEt_COMPPAD:
f3548bdc 947 PL_comppad = (PAD*)SSPOPPTR;
58ed4fbe 948 if (PL_comppad)
cb50131a
CB
949 PL_curpad = AvARRAY(PL_comppad);
950 else
951 PL_curpad = Null(SV**);
952 break;
c3564e5c
GS
953 case SAVEt_PADSV:
954 {
35a4481c 955 const PADOFFSET off = (PADOFFSET)SSPOPLONG;
c3564e5c
GS
956 ptr = SSPOPPTR;
957 if (ptr)
f3548bdc 958 AvARRAY((PAD*)ptr)[off] = (SV*)SSPOPPTR;
c3564e5c
GS
959 }
960 break;
8b7059b1
DM
961 case SAVEt_SAVESWITCHSTACK:
962 {
963 dSP;
964 AV* t = (AV*)SSPOPPTR;
965 AV* f = (AV*)SSPOPPTR;
966 SWITCHSTACK(t,f);
967 PL_curstackinfo->si_stack = f;
968 }
969 break;
14f338dc
DM
970 case SAVEt_SET_SVFLAGS:
971 {
35a4481c
AL
972 const U32 val = (U32)SSPOPINT;
973 const U32 mask = (U32)SSPOPINT;
14f338dc
DM
974 sv = (SV*)SSPOPPTR;
975 SvFLAGS(sv) &= ~mask;
976 SvFLAGS(sv) |= val;
977 }
978 break;
79072805 979 default:
cea2e8a9 980 Perl_croak(aTHX_ "panic: leave_scope inconsistency");
79072805
LW
981 }
982 }
983}
8990e307 984
8990e307 985void
864dbfa3 986Perl_cx_dump(pTHX_ PERL_CONTEXT *cx)
8990e307 987{
35ff7856 988#ifdef DEBUGGING
22c35a8c 989 PerlIO_printf(Perl_debug_log, "CX %ld = %s\n", (long)(cx - cxstack), PL_block_type[CxTYPE(cx)]);
6b35e009 990 if (CxTYPE(cx) != CXt_SUBST) {
760ac839 991 PerlIO_printf(Perl_debug_log, "BLK_OLDSP = %ld\n", (long)cx->blk_oldsp);
146174a9
CB
992 PerlIO_printf(Perl_debug_log, "BLK_OLDCOP = 0x%"UVxf"\n",
993 PTR2UV(cx->blk_oldcop));
760ac839
LW
994 PerlIO_printf(Perl_debug_log, "BLK_OLDMARKSP = %ld\n", (long)cx->blk_oldmarksp);
995 PerlIO_printf(Perl_debug_log, "BLK_OLDSCOPESP = %ld\n", (long)cx->blk_oldscopesp);
146174a9
CB
996 PerlIO_printf(Perl_debug_log, "BLK_OLDPM = 0x%"UVxf"\n",
997 PTR2UV(cx->blk_oldpm));
760ac839 998 PerlIO_printf(Perl_debug_log, "BLK_GIMME = %s\n", cx->blk_gimme ? "LIST" : "SCALAR");
8990e307 999 }
6b35e009 1000 switch (CxTYPE(cx)) {
8990e307
LW
1001 case CXt_NULL:
1002 case CXt_BLOCK:
1003 break;
146174a9
CB
1004 case CXt_FORMAT:
1005 PerlIO_printf(Perl_debug_log, "BLK_SUB.CV = 0x%"UVxf"\n",
1006 PTR2UV(cx->blk_sub.cv));
1007 PerlIO_printf(Perl_debug_log, "BLK_SUB.GV = 0x%"UVxf"\n",
1008 PTR2UV(cx->blk_sub.gv));
1009 PerlIO_printf(Perl_debug_log, "BLK_SUB.DFOUTGV = 0x%"UVxf"\n",
1010 PTR2UV(cx->blk_sub.dfoutgv));
1011 PerlIO_printf(Perl_debug_log, "BLK_SUB.HASARGS = %d\n",
1012 (int)cx->blk_sub.hasargs);
f39bc417
DM
1013 PerlIO_printf(Perl_debug_log, "BLK_SUB.RETOP = 0x%"UVxf"\n",
1014 PTR2UV(cx->blk_sub.retop));
146174a9 1015 break;
8990e307 1016 case CXt_SUB:
146174a9
CB
1017 PerlIO_printf(Perl_debug_log, "BLK_SUB.CV = 0x%"UVxf"\n",
1018 PTR2UV(cx->blk_sub.cv));
760ac839 1019 PerlIO_printf(Perl_debug_log, "BLK_SUB.OLDDEPTH = %ld\n",
8990e307 1020 (long)cx->blk_sub.olddepth);
760ac839 1021 PerlIO_printf(Perl_debug_log, "BLK_SUB.HASARGS = %d\n",
8990e307 1022 (int)cx->blk_sub.hasargs);
146174a9
CB
1023 PerlIO_printf(Perl_debug_log, "BLK_SUB.LVAL = %d\n",
1024 (int)cx->blk_sub.lval);
f39bc417
DM
1025 PerlIO_printf(Perl_debug_log, "BLK_SUB.RETOP = 0x%"UVxf"\n",
1026 PTR2UV(cx->blk_sub.retop));
8990e307
LW
1027 break;
1028 case CXt_EVAL:
760ac839 1029 PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_IN_EVAL = %ld\n",
8990e307 1030 (long)cx->blk_eval.old_in_eval);
760ac839 1031 PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_OP_TYPE = %s (%s)\n",
22c35a8c
GS
1032 PL_op_name[cx->blk_eval.old_op_type],
1033 PL_op_desc[cx->blk_eval.old_op_type]);
0f79a09d
GS
1034 if (cx->blk_eval.old_namesv)
1035 PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_NAME = %s\n",
aa07b2f6 1036 SvPVX_const(cx->blk_eval.old_namesv));
146174a9
CB
1037 PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_EVAL_ROOT = 0x%"UVxf"\n",
1038 PTR2UV(cx->blk_eval.old_eval_root));
f39bc417
DM
1039 PerlIO_printf(Perl_debug_log, "BLK_EVAL.RETOP = 0x%"UVxf"\n",
1040 PTR2UV(cx->blk_eval.retop));
8990e307
LW
1041 break;
1042
1043 case CXt_LOOP:
760ac839 1044 PerlIO_printf(Perl_debug_log, "BLK_LOOP.LABEL = %s\n",
8990e307 1045 cx->blk_loop.label);
760ac839 1046 PerlIO_printf(Perl_debug_log, "BLK_LOOP.RESETSP = %ld\n",
8990e307 1047 (long)cx->blk_loop.resetsp);
146174a9
CB
1048 PerlIO_printf(Perl_debug_log, "BLK_LOOP.REDO_OP = 0x%"UVxf"\n",
1049 PTR2UV(cx->blk_loop.redo_op));
1050 PerlIO_printf(Perl_debug_log, "BLK_LOOP.NEXT_OP = 0x%"UVxf"\n",
1051 PTR2UV(cx->blk_loop.next_op));
1052 PerlIO_printf(Perl_debug_log, "BLK_LOOP.LAST_OP = 0x%"UVxf"\n",
1053 PTR2UV(cx->blk_loop.last_op));
760ac839 1054 PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERIX = %ld\n",
8990e307 1055 (long)cx->blk_loop.iterix);
146174a9
CB
1056 PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERARY = 0x%"UVxf"\n",
1057 PTR2UV(cx->blk_loop.iterary));
1058 PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERVAR = 0x%"UVxf"\n",
1059 PTR2UV(CxITERVAR(cx)));
1060 if (CxITERVAR(cx))
1061 PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERSAVE = 0x%"UVxf"\n",
1062 PTR2UV(cx->blk_loop.itersave));
1063 PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERLVAL = 0x%"UVxf"\n",
1064 PTR2UV(cx->blk_loop.iterlval));
8990e307
LW
1065 break;
1066
1067 case CXt_SUBST:
760ac839 1068 PerlIO_printf(Perl_debug_log, "SB_ITERS = %ld\n",
8990e307 1069 (long)cx->sb_iters);
760ac839 1070 PerlIO_printf(Perl_debug_log, "SB_MAXITERS = %ld\n",
8990e307 1071 (long)cx->sb_maxiters);
35ef4773
GS
1072 PerlIO_printf(Perl_debug_log, "SB_RFLAGS = %ld\n",
1073 (long)cx->sb_rflags);
760ac839 1074 PerlIO_printf(Perl_debug_log, "SB_ONCE = %ld\n",
8990e307 1075 (long)cx->sb_once);
760ac839 1076 PerlIO_printf(Perl_debug_log, "SB_ORIG = %s\n",
8990e307 1077 cx->sb_orig);
146174a9
CB
1078 PerlIO_printf(Perl_debug_log, "SB_DSTR = 0x%"UVxf"\n",
1079 PTR2UV(cx->sb_dstr));
1080 PerlIO_printf(Perl_debug_log, "SB_TARG = 0x%"UVxf"\n",
1081 PTR2UV(cx->sb_targ));
1082 PerlIO_printf(Perl_debug_log, "SB_S = 0x%"UVxf"\n",
1083 PTR2UV(cx->sb_s));
1084 PerlIO_printf(Perl_debug_log, "SB_M = 0x%"UVxf"\n",
1085 PTR2UV(cx->sb_m));
1086 PerlIO_printf(Perl_debug_log, "SB_STREND = 0x%"UVxf"\n",
1087 PTR2UV(cx->sb_strend));
1088 PerlIO_printf(Perl_debug_log, "SB_RXRES = 0x%"UVxf"\n",
1089 PTR2UV(cx->sb_rxres));
8990e307
LW
1090 break;
1091 }
17c3b450 1092#endif /* DEBUGGING */
35ff7856 1093}
241d1a3b
NC
1094
1095/*
1096 * Local variables:
1097 * c-indentation-style: bsd
1098 * c-basic-offset: 4
1099 * indent-tabs-mode: t
1100 * End:
1101 *
37442d52
RGS
1102 * ex: set ts=8 sts=4 sw=4 noet:
1103 */