Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* scope.c |
79072805 | 2 | * |
4bb101f2 | 3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
54ca4ee7 | 4 | * 2000, 2001, 2002, 2003, 2004, 2005, 2006, by Larry Wall and others |
79072805 LW |
5 | * |
6 | * You may distribute under the terms of either the GNU General Public | |
7 | * License or the Artistic License, as specified in the README file. | |
8 | * | |
a0d0e21e LW |
9 | */ |
10 | ||
11 | /* | |
12 | * "For the fashion of Minas Tirith was such that it was built on seven | |
13 | * levels..." | |
79072805 LW |
14 | */ |
15 | ||
ddfa107c | 16 | /* This file contains functions to manipulate several of Perl's stacks; |
166f8a29 DM |
17 | * in particular it contains code to push various types of things onto |
18 | * the savestack, then to pop them off and perform the correct restorative | |
19 | * action for each one. This corresponds to the cleanup Perl does at | |
20 | * each scope exit. | |
21 | */ | |
22 | ||
79072805 | 23 | #include "EXTERN.h" |
864dbfa3 | 24 | #define PERL_IN_SCOPE_C |
79072805 LW |
25 | #include "perl.h" |
26 | ||
a0d0e21e | 27 | SV** |
864dbfa3 | 28 | Perl_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 | 46 | PERL_SI * |
864dbfa3 | 47 | Perl_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 | 69 | I32 |
864dbfa3 | 70 | Perl_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 | 82 | void |
864dbfa3 | 83 | Perl_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 | ||
94 | void | |
864dbfa3 | 95 | Perl_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 | ||
102 | void | |
864dbfa3 | 103 | Perl_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 | ||
114 | void | |
864dbfa3 | 115 | Perl_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 |
122 | void |
123 | Perl_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 | 132 | void |
864dbfa3 | 133 | Perl_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 | ||
145 | void | |
864dbfa3 | 146 | Perl_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 | 161 | STATIC SV * |
cea2e8a9 | 162 | S_save_scalar_at(pTHX_ SV **sptr) |
79072805 | 163 | { |
97aff369 | 164 | dVAR; |
901017d6 | 165 | SV * const osv = *sptr; |
561b68a9 | 166 | register SV * const sv = *sptr = newSV(0); |
79072805 | 167 | |
81d86705 | 168 | #ifdef PERL_MAD |
49e9cc5f | 169 | /* FIXME for MAD - this is causing ext/Safe/t/safeops.t to abort. */ |
81d86705 NC |
170 | if (PL_formfeed && sv == PL_formfeed) |
171 | abort(); | |
172 | #endif | |
173 | ||
a0d0e21e | 174 | if (SvTYPE(osv) >= SVt_PVMG && SvMAGIC(osv) && SvTYPE(osv) != SVt_PVGV) { |
a0d0e21e | 175 | if (SvGMAGICAL(osv)) { |
35a4481c | 176 | const bool oldtainted = PL_tainted; |
a0d0e21e | 177 | SvFLAGS(osv) |= (SvFLAGS(osv) & |
c268c2a6 | 178 | (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
3280af22 | 179 | PL_tainted = oldtainted; |
a0d0e21e | 180 | } |
0cbee0a4 | 181 | mg_localize(osv, sv); |
79072805 LW |
182 | } |
183 | return sv; | |
184 | } | |
185 | ||
7a4c00b4 | 186 | SV * |
864dbfa3 | 187 | Perl_save_scalar(pTHX_ GV *gv) |
7a4c00b4 | 188 | { |
97aff369 | 189 | dVAR; |
fb4fc1fa | 190 | SV ** const sptr = &GvSVn(gv); |
81d86705 NC |
191 | #ifdef PERL_MAD |
192 | if (PL_formfeed && *sptr == PL_formfeed) | |
193 | abort(); | |
194 | #endif | |
27cc343c | 195 | PL_localizing = 1; |
0cbee0a4 | 196 | SvGETMAGIC(*sptr); |
27cc343c | 197 | PL_localizing = 0; |
7a4c00b4 | 198 | SSCHECK(3); |
b37c2d43 | 199 | SSPUSHPTR(SvREFCNT_inc_simple(gv)); |
4e4c362e | 200 | SSPUSHPTR(SvREFCNT_inc(*sptr)); |
7a4c00b4 | 201 | SSPUSHINT(SAVEt_SV); |
4e4c362e | 202 | return save_scalar_at(sptr); |
7a4c00b4 | 203 | } |
204 | ||
f4dd75d9 | 205 | /* Like save_sptr(), but also SvREFCNT_dec()s the new value. Can be used to |
b9d12d37 GS |
206 | * restore a global SV to its prior contents, freeing new value. */ |
207 | void | |
864dbfa3 | 208 | Perl_save_generic_svref(pTHX_ SV **sptr) |
b9d12d37 | 209 | { |
97aff369 | 210 | dVAR; |
81d86705 NC |
211 | #ifdef PERL_MAD |
212 | if (PL_formfeed && *sptr == PL_formfeed) | |
213 | abort(); | |
214 | #endif | |
b9d12d37 GS |
215 | SSCHECK(3); |
216 | SSPUSHPTR(sptr); | |
217 | SSPUSHPTR(SvREFCNT_inc(*sptr)); | |
218 | SSPUSHINT(SAVEt_GENERIC_SVREF); | |
219 | } | |
220 | ||
f4dd75d9 GS |
221 | /* Like save_pptr(), but also Safefree()s the new value if it is different |
222 | * from the old one. Can be used to restore a global char* to its prior | |
223 | * contents, freeing new value. */ | |
224 | void | |
225 | Perl_save_generic_pvref(pTHX_ char **str) | |
226 | { | |
97aff369 | 227 | dVAR; |
f4dd75d9 | 228 | SSCHECK(3); |
f4dd75d9 | 229 | SSPUSHPTR(*str); |
b03d03b0 | 230 | SSPUSHPTR(str); |
f4dd75d9 GS |
231 | SSPUSHINT(SAVEt_GENERIC_PVREF); |
232 | } | |
233 | ||
05ec9bb3 NIS |
234 | /* Like save_generic_pvref(), but uses PerlMemShared_free() rather than Safefree(). |
235 | * Can be used to restore a shared global char* to its prior | |
236 | * contents, freeing new value. */ | |
237 | void | |
238 | Perl_save_shared_pvref(pTHX_ char **str) | |
239 | { | |
97aff369 | 240 | dVAR; |
05ec9bb3 NIS |
241 | SSCHECK(3); |
242 | SSPUSHPTR(str); | |
243 | SSPUSHPTR(*str); | |
244 | SSPUSHINT(SAVEt_SHARED_PVREF); | |
245 | } | |
246 | ||
14f338dc DM |
247 | /* set the SvFLAGS specified by mask to the values in val */ |
248 | ||
249 | void | |
250 | Perl_save_set_svflags(pTHX_ SV* sv, U32 mask, U32 val) | |
251 | { | |
97aff369 | 252 | dVAR; |
14f338dc DM |
253 | SSCHECK(4); |
254 | SSPUSHPTR(sv); | |
255 | SSPUSHINT(mask); | |
256 | SSPUSHINT(val); | |
257 | SSPUSHINT(SAVEt_SET_SVFLAGS); | |
258 | } | |
259 | ||
79072805 | 260 | void |
864dbfa3 | 261 | Perl_save_gp(pTHX_ GV *gv, I32 empty) |
79072805 | 262 | { |
97aff369 | 263 | dVAR; |
576df6af | 264 | SSGROW(3); |
4633a7c4 | 265 | SSPUSHPTR(SvREFCNT_inc(gv)); |
5f05dabc | 266 | SSPUSHPTR(GvGP(gv)); |
79072805 LW |
267 | SSPUSHINT(SAVEt_GP); |
268 | ||
5f05dabc | 269 | if (empty) { |
12816592 | 270 | GP *gp = Perl_newGP(aTHX_ gv); |
146174a9 | 271 | |
fae75791 | 272 | if (GvCVu(gv)) |
3280af22 | 273 | PL_sub_generation++; /* taking a method out of circulation */ |
146174a9 CB |
274 | if (GvIOp(gv) && (IoFLAGS(GvIOp(gv)) & IOf_ARGV)) { |
275 | gp->gp_io = newIO(); | |
276 | IoFLAGS(gp->gp_io) |= IOf_ARGV|IOf_START; | |
277 | } | |
12816592 | 278 | GvGP(gv) = gp; |
5f05dabc | 279 | } |
280 | else { | |
44a8e56a | 281 | gp_ref(GvGP(gv)); |
5f05dabc | 282 | GvINTRO_on(gv); |
283 | } | |
79072805 | 284 | } |
79072805 | 285 | |
79072805 | 286 | AV * |
864dbfa3 | 287 | Perl_save_ary(pTHX_ GV *gv) |
79072805 | 288 | { |
97aff369 | 289 | dVAR; |
901017d6 | 290 | AV * const oav = GvAVn(gv); |
67a38de0 | 291 | AV *av; |
fb73857a | 292 | |
67a38de0 NIS |
293 | if (!AvREAL(oav) && AvREIFY(oav)) |
294 | av_reify(oav); | |
79072805 LW |
295 | SSCHECK(3); |
296 | SSPUSHPTR(gv); | |
67a38de0 | 297 | SSPUSHPTR(oav); |
79072805 LW |
298 | SSPUSHINT(SAVEt_AV); |
299 | ||
4608196e | 300 | GvAV(gv) = NULL; |
fb73857a | 301 | av = GvAVn(gv); |
0cbee0a4 DM |
302 | if (SvMAGIC(oav)) |
303 | mg_localize((SV*)oav, (SV*)av); | |
fb73857a | 304 | return av; |
79072805 LW |
305 | } |
306 | ||
307 | HV * | |
864dbfa3 | 308 | Perl_save_hash(pTHX_ GV *gv) |
79072805 | 309 | { |
97aff369 | 310 | dVAR; |
fb73857a | 311 | HV *ohv, *hv; |
312 | ||
79072805 LW |
313 | SSCHECK(3); |
314 | SSPUSHPTR(gv); | |
fb73857a | 315 | SSPUSHPTR(ohv = GvHVn(gv)); |
79072805 LW |
316 | SSPUSHINT(SAVEt_HV); |
317 | ||
4608196e | 318 | GvHV(gv) = NULL; |
fb73857a | 319 | hv = GvHVn(gv); |
0cbee0a4 DM |
320 | if (SvMAGIC(ohv)) |
321 | mg_localize((SV*)ohv, (SV*)hv); | |
fb73857a | 322 | return hv; |
79072805 LW |
323 | } |
324 | ||
325 | void | |
864dbfa3 | 326 | Perl_save_item(pTHX_ register SV *item) |
79072805 | 327 | { |
97aff369 | 328 | dVAR; |
901017d6 | 329 | register SV * const sv = newSVsv(item); |
79072805 | 330 | |
81d86705 NC |
331 | #ifdef PERL_MAD |
332 | if (PL_formfeed && item == PL_formfeed) | |
333 | abort(); | |
334 | #endif | |
335 | ||
79072805 LW |
336 | SSCHECK(3); |
337 | SSPUSHPTR(item); /* remember the pointer */ | |
79072805 LW |
338 | SSPUSHPTR(sv); /* remember the value */ |
339 | SSPUSHINT(SAVEt_ITEM); | |
340 | } | |
341 | ||
342 | void | |
864dbfa3 | 343 | Perl_save_int(pTHX_ int *intp) |
79072805 | 344 | { |
97aff369 | 345 | dVAR; |
79072805 LW |
346 | SSCHECK(3); |
347 | SSPUSHINT(*intp); | |
348 | SSPUSHPTR(intp); | |
349 | SSPUSHINT(SAVEt_INT); | |
350 | } | |
351 | ||
352 | void | |
9febdf04 RH |
353 | Perl_save_bool(pTHX_ bool *boolp) |
354 | { | |
97aff369 | 355 | dVAR; |
9febdf04 RH |
356 | SSCHECK(3); |
357 | SSPUSHBOOL(*boolp); | |
358 | SSPUSHPTR(boolp); | |
359 | SSPUSHINT(SAVEt_BOOL); | |
360 | } | |
361 | ||
362 | void | |
864dbfa3 | 363 | Perl_save_I32(pTHX_ I32 *intp) |
79072805 | 364 | { |
97aff369 | 365 | dVAR; |
79072805 LW |
366 | SSCHECK(3); |
367 | SSPUSHINT(*intp); | |
368 | SSPUSHPTR(intp); | |
369 | SSPUSHINT(SAVEt_I32); | |
370 | } | |
371 | ||
85e6fe83 LW |
372 | /* Cannot use save_sptr() to store a char* since the SV** cast will |
373 | * force word-alignment and we'll miss the pointer. | |
374 | */ | |
375 | void | |
864dbfa3 | 376 | Perl_save_pptr(pTHX_ char **pptr) |
85e6fe83 | 377 | { |
97aff369 | 378 | dVAR; |
85e6fe83 LW |
379 | SSCHECK(3); |
380 | SSPUSHPTR(*pptr); | |
381 | SSPUSHPTR(pptr); | |
382 | SSPUSHINT(SAVEt_PPTR); | |
383 | } | |
384 | ||
79072805 | 385 | void |
146174a9 CB |
386 | Perl_save_vptr(pTHX_ void *ptr) |
387 | { | |
97aff369 | 388 | dVAR; |
146174a9 CB |
389 | SSCHECK(3); |
390 | SSPUSHPTR(*(char**)ptr); | |
391 | SSPUSHPTR(ptr); | |
392 | SSPUSHINT(SAVEt_VPTR); | |
393 | } | |
394 | ||
395 | void | |
864dbfa3 | 396 | Perl_save_sptr(pTHX_ SV **sptr) |
79072805 | 397 | { |
97aff369 | 398 | dVAR; |
79072805 LW |
399 | SSCHECK(3); |
400 | SSPUSHPTR(*sptr); | |
401 | SSPUSHPTR(sptr); | |
402 | SSPUSHINT(SAVEt_SPTR); | |
403 | } | |
404 | ||
c3564e5c GS |
405 | void |
406 | Perl_save_padsv(pTHX_ PADOFFSET off) | |
407 | { | |
97aff369 | 408 | dVAR; |
c3564e5c | 409 | SSCHECK(4); |
f3548bdc | 410 | ASSERT_CURPAD_ACTIVE("save_padsv"); |
c3564e5c | 411 | SSPUSHPTR(PL_curpad[off]); |
f3548bdc | 412 | SSPUSHPTR(PL_comppad); |
c3564e5c GS |
413 | SSPUSHLONG((long)off); |
414 | SSPUSHINT(SAVEt_PADSV); | |
415 | } | |
416 | ||
79072805 | 417 | void |
864dbfa3 | 418 | Perl_save_hptr(pTHX_ HV **hptr) |
79072805 | 419 | { |
97aff369 | 420 | dVAR; |
79072805 | 421 | SSCHECK(3); |
85e6fe83 | 422 | SSPUSHPTR(*hptr); |
79072805 LW |
423 | SSPUSHPTR(hptr); |
424 | SSPUSHINT(SAVEt_HPTR); | |
425 | } | |
426 | ||
427 | void | |
864dbfa3 | 428 | Perl_save_aptr(pTHX_ AV **aptr) |
79072805 | 429 | { |
97aff369 | 430 | dVAR; |
79072805 | 431 | SSCHECK(3); |
85e6fe83 | 432 | SSPUSHPTR(*aptr); |
79072805 LW |
433 | SSPUSHPTR(aptr); |
434 | SSPUSHINT(SAVEt_APTR); | |
435 | } | |
436 | ||
437 | void | |
864dbfa3 | 438 | Perl_save_freesv(pTHX_ SV *sv) |
8990e307 | 439 | { |
97aff369 | 440 | dVAR; |
8990e307 LW |
441 | SSCHECK(2); |
442 | SSPUSHPTR(sv); | |
443 | SSPUSHINT(SAVEt_FREESV); | |
444 | } | |
445 | ||
446 | void | |
26d9b02f JH |
447 | Perl_save_mortalizesv(pTHX_ SV *sv) |
448 | { | |
97aff369 | 449 | dVAR; |
26d9b02f JH |
450 | SSCHECK(2); |
451 | SSPUSHPTR(sv); | |
452 | SSPUSHINT(SAVEt_MORTALIZESV); | |
453 | } | |
454 | ||
455 | void | |
864dbfa3 | 456 | Perl_save_freeop(pTHX_ OP *o) |
8990e307 | 457 | { |
97aff369 | 458 | dVAR; |
8990e307 | 459 | SSCHECK(2); |
11343788 | 460 | SSPUSHPTR(o); |
8990e307 LW |
461 | SSPUSHINT(SAVEt_FREEOP); |
462 | } | |
463 | ||
464 | void | |
864dbfa3 | 465 | Perl_save_freepv(pTHX_ char *pv) |
8990e307 | 466 | { |
97aff369 | 467 | dVAR; |
8990e307 LW |
468 | SSCHECK(2); |
469 | SSPUSHPTR(pv); | |
470 | SSPUSHINT(SAVEt_FREEPV); | |
471 | } | |
472 | ||
473 | void | |
864dbfa3 | 474 | Perl_save_clearsv(pTHX_ SV **svp) |
8990e307 | 475 | { |
97aff369 | 476 | dVAR; |
f3548bdc | 477 | ASSERT_CURPAD_ACTIVE("save_clearsv"); |
8990e307 | 478 | SSCHECK(2); |
3280af22 | 479 | SSPUSHLONG((long)(svp-PL_curpad)); |
8990e307 | 480 | SSPUSHINT(SAVEt_CLEARSV); |
d9d18af6 | 481 | SvPADSTALE_off(*svp); /* mark lexical as active */ |
8990e307 LW |
482 | } |
483 | ||
484 | void | |
864dbfa3 | 485 | Perl_save_delete(pTHX_ HV *hv, char *key, I32 klen) |
8990e307 | 486 | { |
97aff369 | 487 | dVAR; |
8990e307 LW |
488 | SSCHECK(4); |
489 | SSPUSHINT(klen); | |
490 | SSPUSHPTR(key); | |
b37c2d43 | 491 | SSPUSHPTR(SvREFCNT_inc_simple(hv)); |
8990e307 LW |
492 | SSPUSHINT(SAVEt_DELETE); |
493 | } | |
494 | ||
495 | void | |
146174a9 CB |
496 | Perl_save_destructor_x(pTHX_ DESTRUCTORFUNC_t f, void* p) |
497 | { | |
97aff369 | 498 | dVAR; |
146174a9 CB |
499 | SSCHECK(3); |
500 | SSPUSHDXPTR(f); | |
501 | SSPUSHPTR(p); | |
502 | SSPUSHINT(SAVEt_DESTRUCTOR_X); | |
503 | } | |
504 | ||
505 | void | |
59413342 | 506 | Perl_save_aelem(pTHX_ AV *av, I32 idx, SV **sptr) |
4e4c362e | 507 | { |
97aff369 | 508 | dVAR; |
bfc4de9f | 509 | SV *sv; |
0cbee0a4 | 510 | SvGETMAGIC(*sptr); |
4e4c362e | 511 | SSCHECK(4); |
b37c2d43 | 512 | SSPUSHPTR(SvREFCNT_inc_simple(av)); |
4e4c362e GS |
513 | SSPUSHINT(idx); |
514 | SSPUSHPTR(SvREFCNT_inc(*sptr)); | |
515 | SSPUSHINT(SAVEt_AELEM); | |
5dd42e15 DM |
516 | /* if it gets reified later, the restore will have the wrong refcnt */ |
517 | if (!AvREAL(av) && AvREIFY(av)) | |
b37c2d43 | 518 | SvREFCNT_inc_void(*sptr); |
4e4c362e | 519 | save_scalar_at(sptr); |
bfc4de9f DM |
520 | sv = *sptr; |
521 | /* If we're localizing a tied array element, this new sv | |
522 | * won't actually be stored in the array - so it won't get | |
523 | * reaped when the localize ends. Ensure it gets reaped by | |
524 | * mortifying it instead. DAPM */ | |
525 | if (SvTIED_mg(sv, PERL_MAGIC_tiedelem)) | |
526 | sv_2mortal(sv); | |
4e4c362e GS |
527 | } |
528 | ||
529 | void | |
e1ec3a88 | 530 | Perl_save_helem(pTHX_ HV *hv, SV *key, SV **sptr) |
4e4c362e | 531 | { |
97aff369 | 532 | dVAR; |
bfc4de9f | 533 | SV *sv; |
0cbee0a4 | 534 | SvGETMAGIC(*sptr); |
4e4c362e | 535 | SSCHECK(4); |
b37c2d43 AL |
536 | SSPUSHPTR(SvREFCNT_inc_simple(hv)); |
537 | SSPUSHPTR(SvREFCNT_inc_simple(key)); | |
4e4c362e GS |
538 | SSPUSHPTR(SvREFCNT_inc(*sptr)); |
539 | SSPUSHINT(SAVEt_HELEM); | |
540 | save_scalar_at(sptr); | |
bfc4de9f DM |
541 | sv = *sptr; |
542 | /* If we're localizing a tied hash element, this new sv | |
543 | * won't actually be stored in the hash - so it won't get | |
544 | * reaped when the localize ends. Ensure it gets reaped by | |
545 | * mortifying it instead. DAPM */ | |
546 | if (SvTIED_mg(sv, PERL_MAGIC_tiedelem)) | |
547 | sv_2mortal(sv); | |
4e4c362e GS |
548 | } |
549 | ||
2053acbf NC |
550 | SV* |
551 | Perl_save_svref(pTHX_ SV **sptr) | |
552 | { | |
553 | dVAR; | |
81d86705 NC |
554 | #ifdef PERL_MAD |
555 | if (PL_formfeed && *sptr == PL_formfeed) | |
556 | abort(); | |
557 | #endif | |
2053acbf NC |
558 | SvGETMAGIC(*sptr); |
559 | SSCHECK(3); | |
560 | SSPUSHPTR(sptr); | |
561 | SSPUSHPTR(SvREFCNT_inc(*sptr)); | |
562 | SSPUSHINT(SAVEt_SVREF); | |
563 | return save_scalar_at(sptr); | |
564 | } | |
565 | ||
4e4c362e | 566 | void |
864dbfa3 | 567 | Perl_save_op(pTHX) |
462e5cf6 | 568 | { |
97aff369 | 569 | dVAR; |
462e5cf6 | 570 | SSCHECK(2); |
533c011a | 571 | SSPUSHPTR(PL_op); |
462e5cf6 MB |
572 | SSPUSHINT(SAVEt_OP); |
573 | } | |
574 | ||
455ece5e | 575 | I32 |
864dbfa3 | 576 | Perl_save_alloc(pTHX_ I32 size, I32 pad) |
455ece5e | 577 | { |
97aff369 | 578 | dVAR; |
35a4481c | 579 | register const I32 start = pad + ((char*)&PL_savestack[PL_savestack_ix] |
8aacddc1 | 580 | - (char*)PL_savestack); |
35a4481c | 581 | register const I32 elems = 1 + ((size + pad - 1) / sizeof(*PL_savestack)); |
455ece5e | 582 | |
1bb4c835 | 583 | SSGROW(elems + 2); |
455ece5e AD |
584 | |
585 | PL_savestack_ix += elems; | |
586 | SSPUSHINT(elems); | |
587 | SSPUSHINT(SAVEt_ALLOC); | |
588 | return start; | |
589 | } | |
590 | ||
462e5cf6 | 591 | void |
864dbfa3 | 592 | Perl_leave_scope(pTHX_ I32 base) |
79072805 | 593 | { |
97aff369 | 594 | dVAR; |
79072805 LW |
595 | register SV *sv; |
596 | register SV *value; | |
597 | register GV *gv; | |
598 | register AV *av; | |
599 | register HV *hv; | |
20454177 | 600 | void* ptr; |
f4dd75d9 | 601 | register char* str; |
161b7d16 | 602 | I32 i; |
79072805 LW |
603 | |
604 | if (base < -1) | |
cea2e8a9 | 605 | Perl_croak(aTHX_ "panic: corrupt saved stack index"); |
3280af22 | 606 | while (PL_savestack_ix > base) { |
79072805 LW |
607 | switch (SSPOPINT) { |
608 | case SAVEt_ITEM: /* normal string */ | |
609 | value = (SV*)SSPOPPTR; | |
610 | sv = (SV*)SSPOPPTR; | |
611 | sv_replace(sv,value); | |
3280af22 | 612 | PL_localizing = 2; |
79072805 | 613 | SvSETMAGIC(sv); |
3280af22 | 614 | PL_localizing = 0; |
79072805 | 615 | break; |
8aacddc1 | 616 | case SAVEt_SV: /* scalar reference */ |
79072805 LW |
617 | value = (SV*)SSPOPPTR; |
618 | gv = (GV*)SSPOPPTR; | |
7a4c00b4 | 619 | ptr = &GvSV(gv); |
5dd42e15 | 620 | av = (AV*)gv; /* what to refcnt_dec */ |
2053acbf NC |
621 | restore_sv: |
622 | sv = *(SV**)ptr; | |
623 | DEBUG_S(PerlIO_printf(Perl_debug_log, | |
624 | "restore svref: %p %p:%s -> %p:%s\n", | |
625 | ptr, sv, SvPEEK(sv), value, SvPEEK(value))); | |
626 | *(SV**)ptr = value; | |
627 | SvREFCNT_dec(sv); | |
628 | PL_localizing = 2; | |
629 | SvSETMAGIC(value); | |
630 | PL_localizing = 0; | |
631 | SvREFCNT_dec(value); | |
632 | if (av) /* actually an av, hv or gv */ | |
633 | SvREFCNT_dec(av); | |
634 | break; | |
8aacddc1 | 635 | case SAVEt_GENERIC_PVREF: /* generic pv */ |
f4dd75d9 | 636 | ptr = SSPOPPTR; |
b03d03b0 | 637 | str = (char*)SSPOPPTR; |
f4dd75d9 GS |
638 | if (*(char**)ptr != str) { |
639 | Safefree(*(char**)ptr); | |
640 | *(char**)ptr = str; | |
641 | } | |
642 | break; | |
05ec9bb3 NIS |
643 | case SAVEt_SHARED_PVREF: /* shared pv */ |
644 | str = (char*)SSPOPPTR; | |
645 | ptr = SSPOPPTR; | |
646 | if (*(char**)ptr != str) { | |
5e54c26f | 647 | #ifdef NETWARE |
9ecbcc42 | 648 | PerlMem_free(*(char**)ptr); |
5e54c26f | 649 | #else |
05ec9bb3 | 650 | PerlMemShared_free(*(char**)ptr); |
5e54c26f | 651 | #endif |
05ec9bb3 NIS |
652 | *(char**)ptr = str; |
653 | } | |
654 | break; | |
8aacddc1 | 655 | case SAVEt_GENERIC_SVREF: /* generic sv */ |
b9d12d37 GS |
656 | value = (SV*)SSPOPPTR; |
657 | ptr = SSPOPPTR; | |
f4dd75d9 GS |
658 | sv = *(SV**)ptr; |
659 | *(SV**)ptr = value; | |
660 | SvREFCNT_dec(sv); | |
b9d12d37 GS |
661 | SvREFCNT_dec(value); |
662 | break; | |
8aacddc1 | 663 | case SAVEt_AV: /* array reference */ |
79072805 LW |
664 | av = (AV*)SSPOPPTR; |
665 | gv = (GV*)SSPOPPTR; | |
fb73857a | 666 | if (GvAV(gv)) { |
35a4481c | 667 | AV * const goner = GvAV(gv); |
404a4710 NC |
668 | /* FIXME - this is a temporary hack until we work out what |
669 | the correct behaviour for magic should be. */ | |
670 | sv_unmagic((SV*)goner, PERL_MAGIC_arylen_p); | |
b162af07 | 671 | SvMAGIC_set(av, SvMAGIC(goner)); |
32da55ab | 672 | SvFLAGS((SV*)av) |= SvMAGICAL(goner); |
fb73857a | 673 | SvMAGICAL_off(goner); |
b162af07 | 674 | SvMAGIC_set(goner, NULL); |
fb73857a | 675 | SvREFCNT_dec(goner); |
676 | } | |
8aacddc1 | 677 | GvAV(gv) = av; |
fb73857a | 678 | if (SvMAGICAL(av)) { |
3280af22 | 679 | PL_localizing = 2; |
fb73857a | 680 | SvSETMAGIC((SV*)av); |
3280af22 | 681 | PL_localizing = 0; |
fb73857a | 682 | } |
8aacddc1 NIS |
683 | break; |
684 | case SAVEt_HV: /* hash reference */ | |
79072805 LW |
685 | hv = (HV*)SSPOPPTR; |
686 | gv = (GV*)SSPOPPTR; | |
fb73857a | 687 | if (GvHV(gv)) { |
35a4481c | 688 | HV * const goner = GvHV(gv); |
b162af07 | 689 | SvMAGIC_set(hv, SvMAGIC(goner)); |
fb73857a | 690 | SvFLAGS(hv) |= SvMAGICAL(goner); |
691 | SvMAGICAL_off(goner); | |
b162af07 | 692 | SvMAGIC_set(goner, NULL); |
fb73857a | 693 | SvREFCNT_dec(goner); |
694 | } | |
8aacddc1 | 695 | GvHV(gv) = hv; |
fb73857a | 696 | if (SvMAGICAL(hv)) { |
3280af22 | 697 | PL_localizing = 2; |
fb73857a | 698 | SvSETMAGIC((SV*)hv); |
3280af22 | 699 | PL_localizing = 0; |
fb73857a | 700 | } |
8aacddc1 | 701 | break; |
79072805 LW |
702 | case SAVEt_INT: /* int reference */ |
703 | ptr = SSPOPPTR; | |
704 | *(int*)ptr = (int)SSPOPINT; | |
705 | break; | |
9febdf04 RH |
706 | case SAVEt_BOOL: /* bool reference */ |
707 | ptr = SSPOPPTR; | |
708 | *(bool*)ptr = (bool)SSPOPBOOL; | |
709 | break; | |
79072805 LW |
710 | case SAVEt_I32: /* I32 reference */ |
711 | ptr = SSPOPPTR; | |
712 | *(I32*)ptr = (I32)SSPOPINT; | |
713 | break; | |
714 | case SAVEt_SPTR: /* SV* reference */ | |
715 | ptr = SSPOPPTR; | |
716 | *(SV**)ptr = (SV*)SSPOPPTR; | |
717 | break; | |
146174a9 | 718 | case SAVEt_VPTR: /* random* reference */ |
85e6fe83 LW |
719 | case SAVEt_PPTR: /* char* reference */ |
720 | ptr = SSPOPPTR; | |
721 | *(char**)ptr = (char*)SSPOPPTR; | |
722 | break; | |
79072805 LW |
723 | case SAVEt_HPTR: /* HV* reference */ |
724 | ptr = SSPOPPTR; | |
725 | *(HV**)ptr = (HV*)SSPOPPTR; | |
726 | break; | |
727 | case SAVEt_APTR: /* AV* reference */ | |
728 | ptr = SSPOPPTR; | |
729 | *(AV**)ptr = (AV*)SSPOPPTR; | |
730 | break; | |
fb73857a | 731 | case SAVEt_GP: /* scalar reference */ |
79072805 LW |
732 | ptr = SSPOPPTR; |
733 | gv = (GV*)SSPOPPTR; | |
8aacddc1 NIS |
734 | gp_free(gv); |
735 | GvGP(gv) = (GP*)ptr; | |
fae75791 | 736 | if (GvCVu(gv)) |
3280af22 | 737 | PL_sub_generation++; /* putting a method back into circulation */ |
4633a7c4 | 738 | SvREFCNT_dec(gv); |
8aacddc1 | 739 | break; |
8990e307 LW |
740 | case SAVEt_FREESV: |
741 | ptr = SSPOPPTR; | |
742 | SvREFCNT_dec((SV*)ptr); | |
743 | break; | |
26d9b02f JH |
744 | case SAVEt_MORTALIZESV: |
745 | ptr = SSPOPPTR; | |
746 | sv_2mortal((SV*)ptr); | |
747 | break; | |
8990e307 LW |
748 | case SAVEt_FREEOP: |
749 | ptr = SSPOPPTR; | |
f3548bdc | 750 | ASSERT_CURPAD_LEGAL("SAVEt_FREEOP"); /* XXX DAPM tmp */ |
8990e307 LW |
751 | op_free((OP*)ptr); |
752 | break; | |
753 | case SAVEt_FREEPV: | |
754 | ptr = SSPOPPTR; | |
1df70142 | 755 | Safefree(ptr); |
8990e307 LW |
756 | break; |
757 | case SAVEt_CLEARSV: | |
3280af22 | 758 | ptr = (void*)&PL_curpad[SSPOPLONG]; |
8990e307 | 759 | sv = *(SV**)ptr; |
dd2155a4 DM |
760 | |
761 | DEBUG_Xv(PerlIO_printf(Perl_debug_log, | |
f3548bdc DM |
762 | "Pad 0x%"UVxf"[0x%"UVxf"] clearsv: %ld sv=0x%"UVxf"<%"IVdf"> %s\n", |
763 | PTR2UV(PL_comppad), PTR2UV(PL_curpad), | |
764 | (long)((SV **)ptr-PL_curpad), PTR2UV(sv), (IV)SvREFCNT(sv), | |
dd2155a4 DM |
765 | (SvREFCNT(sv) <= 1 && !SvOBJECT(sv)) ? "clear" : "abandon" |
766 | )); | |
767 | ||
bc44cdaf GS |
768 | /* Can clear pad variable in place? */ |
769 | if (SvREFCNT(sv) <= 1 && !SvOBJECT(sv)) { | |
8aacddc1 NIS |
770 | /* |
771 | * if a my variable that was made readonly is going out of | |
772 | * scope, we want to remove the readonlyness so that it can | |
773 | * go out of scope quietly | |
8aacddc1 | 774 | */ |
a26e96df | 775 | if (SvPADMY(sv) && !SvFAKE(sv)) |
8aacddc1 NIS |
776 | SvREADONLY_off(sv); |
777 | ||
6fc92669 | 778 | if (SvTHINKFIRST(sv)) |
840a7b70 | 779 | sv_force_normal_flags(sv, SV_IMMEDIATE_UNREF); |
a0d0e21e LW |
780 | if (SvMAGICAL(sv)) |
781 | mg_free(sv); | |
8990e307 LW |
782 | |
783 | switch (SvTYPE(sv)) { | |
784 | case SVt_NULL: | |
785 | break; | |
786 | case SVt_PVAV: | |
44a8e56a | 787 | av_clear((AV*)sv); |
8990e307 LW |
788 | break; |
789 | case SVt_PVHV: | |
44a8e56a | 790 | hv_clear((HV*)sv); |
8990e307 LW |
791 | break; |
792 | case SVt_PVCV: | |
cea2e8a9 | 793 | Perl_croak(aTHX_ "panic: leave_scope pad code"); |
8990e307 | 794 | default: |
0c34ef67 | 795 | SvOK_off(sv); |
8990e307 LW |
796 | break; |
797 | } | |
d9d18af6 | 798 | SvPADSTALE_on(sv); /* mark as no longer live */ |
8990e307 LW |
799 | } |
800 | else { /* Someone has a claim on this, so abandon it. */ | |
35a4481c | 801 | const U32 padflags = SvFLAGS(sv) & (SVs_PADMY|SVs_PADTMP); |
8990e307 LW |
802 | switch (SvTYPE(sv)) { /* Console ourselves with a new value */ |
803 | case SVt_PVAV: *(SV**)ptr = (SV*)newAV(); break; | |
804 | case SVt_PVHV: *(SV**)ptr = (SV*)newHV(); break; | |
561b68a9 | 805 | default: *(SV**)ptr = newSV(0); break; |
8990e307 | 806 | } |
53868620 | 807 | SvREFCNT_dec(sv); /* Cast current value to the winds. */ |
d9d18af6 DM |
808 | /* preserve pad nature, but also mark as not live |
809 | * for any closure capturing */ | |
2740392c | 810 | SvFLAGS(*(SV**)ptr) |= padflags | SVs_PADSTALE; |
8990e307 LW |
811 | } |
812 | break; | |
813 | case SAVEt_DELETE: | |
814 | ptr = SSPOPPTR; | |
815 | hv = (HV*)ptr; | |
816 | ptr = SSPOPPTR; | |
7d654f43 | 817 | (void)hv_delete(hv, (char*)ptr, (I32)SSPOPINT, G_DISCARD); |
4e4c362e | 818 | SvREFCNT_dec(hv); |
8aacddc1 | 819 | Safefree(ptr); |
8990e307 | 820 | break; |
146174a9 CB |
821 | case SAVEt_DESTRUCTOR_X: |
822 | ptr = SSPOPPTR; | |
acfe0abc | 823 | (*SSPOPDXPTR)(aTHX_ ptr); |
a0d0e21e LW |
824 | break; |
825 | case SAVEt_REGCONTEXT: | |
455ece5e | 826 | case SAVEt_ALLOC: |
161b7d16 | 827 | i = SSPOPINT; |
3280af22 | 828 | PL_savestack_ix -= i; /* regexp must have croaked */ |
a0d0e21e | 829 | break; |
55497cff | 830 | case SAVEt_STACK_POS: /* Position on Perl stack */ |
161b7d16 | 831 | i = SSPOPINT; |
3280af22 | 832 | PL_stack_sp = PL_stack_base + i; |
55497cff | 833 | break; |
161b7d16 SM |
834 | case SAVEt_AELEM: /* array element */ |
835 | value = (SV*)SSPOPPTR; | |
836 | i = SSPOPINT; | |
837 | av = (AV*)SSPOPPTR; | |
658aef79 | 838 | ptr = av_fetch(av,i,1); |
5dd42e15 DM |
839 | if (!AvREAL(av) && AvREIFY(av)) /* undo reify guard */ |
840 | SvREFCNT_dec(value); | |
4e4c362e GS |
841 | if (ptr) { |
842 | sv = *(SV**)ptr; | |
3280af22 | 843 | if (sv && sv != &PL_sv_undef) { |
14befaf4 | 844 | if (SvTIED_mg((SV*)av, PERL_MAGIC_tied)) |
b37c2d43 | 845 | SvREFCNT_inc_void_NN(sv); |
4e4c362e GS |
846 | goto restore_sv; |
847 | } | |
848 | } | |
849 | SvREFCNT_dec(av); | |
850 | SvREFCNT_dec(value); | |
851 | break; | |
161b7d16 SM |
852 | case SAVEt_HELEM: /* hash element */ |
853 | value = (SV*)SSPOPPTR; | |
9002cb76 | 854 | sv = (SV*)SSPOPPTR; |
161b7d16 SM |
855 | hv = (HV*)SSPOPPTR; |
856 | ptr = hv_fetch_ent(hv, sv, 1, 0); | |
4e4c362e | 857 | if (ptr) { |
35a4481c | 858 | const SV * const oval = HeVAL((HE*)ptr); |
3280af22 | 859 | if (oval && oval != &PL_sv_undef) { |
4e4c362e | 860 | ptr = &HeVAL((HE*)ptr); |
14befaf4 | 861 | if (SvTIED_mg((SV*)hv, PERL_MAGIC_tied)) |
b37c2d43 | 862 | SvREFCNT_inc_void(*(SV**)ptr); |
4e4c362e | 863 | SvREFCNT_dec(sv); |
5dd42e15 | 864 | av = (AV*)hv; /* what to refcnt_dec */ |
4e4c362e GS |
865 | goto restore_sv; |
866 | } | |
867 | } | |
868 | SvREFCNT_dec(hv); | |
869 | SvREFCNT_dec(sv); | |
870 | SvREFCNT_dec(value); | |
871 | break; | |
462e5cf6 | 872 | case SAVEt_OP: |
533c011a | 873 | PL_op = (OP*)SSPOPPTR; |
462e5cf6 | 874 | break; |
25eaa213 | 875 | case SAVEt_HINTS: |
045ac317 RGS |
876 | if ((PL_hints & HINT_LOCALIZE_HH) && GvHV(PL_hintgv)) { |
877 | SvREFCNT_dec((SV*)GvHV(PL_hintgv)); | |
878 | GvHV(PL_hintgv) = NULL; | |
879 | } | |
3280af22 | 880 | *(I32*)&PL_hints = (I32)SSPOPINT; |
c28fe1ec NC |
881 | Perl_refcounted_he_free(aTHX_ PL_compiling.cop_hints_hash); |
882 | PL_compiling.cop_hints_hash = (struct refcounted_he *) SSPOPPTR; | |
dfa41748 DM |
883 | if (PL_hints & HINT_LOCALIZE_HH) { |
884 | SvREFCNT_dec((SV*)GvHV(PL_hintgv)); | |
885 | GvHV(PL_hintgv) = (HV*)SSPOPPTR; | |
5b9c0671 NC |
886 | assert(GvHV(PL_hintgv)); |
887 | } else if (!GvHV(PL_hintgv)) { | |
888 | /* Need to add a new one manually, else gv_fetchpv() can | |
889 | add one in this code: | |
890 | ||
891 | if (SvTYPE(gv) == SVt_PVGV) { | |
892 | if (add) { | |
893 | GvMULTI_on(gv); | |
894 | gv_init_sv(gv, sv_type); | |
895 | if (*name=='!' && sv_type == SVt_PVHV && len==1) | |
896 | require_errno(gv); | |
897 | } | |
898 | return gv; | |
899 | } | |
900 | ||
901 | and it won't have the magic set. */ | |
902 | ||
903 | HV *const hv = newHV(); | |
904 | hv_magic(hv, NULL, PERL_MAGIC_hints); | |
905 | GvHV(PL_hintgv) = hv; | |
dfa41748 | 906 | } |
5b9c0671 | 907 | assert(GvHV(PL_hintgv)); |
b3ac6de7 | 908 | break; |
cb50131a | 909 | case SAVEt_COMPPAD: |
f3548bdc | 910 | PL_comppad = (PAD*)SSPOPPTR; |
58ed4fbe | 911 | if (PL_comppad) |
cb50131a CB |
912 | PL_curpad = AvARRAY(PL_comppad); |
913 | else | |
4608196e | 914 | PL_curpad = NULL; |
cb50131a | 915 | break; |
c3564e5c GS |
916 | case SAVEt_PADSV: |
917 | { | |
35a4481c | 918 | const PADOFFSET off = (PADOFFSET)SSPOPLONG; |
c3564e5c GS |
919 | ptr = SSPOPPTR; |
920 | if (ptr) | |
f3548bdc | 921 | AvARRAY((PAD*)ptr)[off] = (SV*)SSPOPPTR; |
c3564e5c GS |
922 | } |
923 | break; | |
8b7059b1 DM |
924 | case SAVEt_SAVESWITCHSTACK: |
925 | { | |
926 | dSP; | |
7452cf6a AL |
927 | AV* const t = (AV*)SSPOPPTR; |
928 | AV* const f = (AV*)SSPOPPTR; | |
8b7059b1 DM |
929 | SWITCHSTACK(t,f); |
930 | PL_curstackinfo->si_stack = f; | |
931 | } | |
932 | break; | |
14f338dc DM |
933 | case SAVEt_SET_SVFLAGS: |
934 | { | |
35a4481c AL |
935 | const U32 val = (U32)SSPOPINT; |
936 | const U32 mask = (U32)SSPOPINT; | |
14f338dc DM |
937 | sv = (SV*)SSPOPPTR; |
938 | SvFLAGS(sv) &= ~mask; | |
939 | SvFLAGS(sv) |= val; | |
940 | } | |
941 | break; | |
2053acbf NC |
942 | /* These are only saved in mathoms.c */ |
943 | case SAVEt_SVREF: /* scalar reference */ | |
944 | value = (SV*)SSPOPPTR; | |
945 | ptr = SSPOPPTR; | |
946 | av = NULL; /* what to refcnt_dec */ | |
947 | goto restore_sv; | |
948 | case SAVEt_LONG: /* long reference */ | |
949 | ptr = SSPOPPTR; | |
950 | *(long*)ptr = (long)SSPOPLONG; | |
951 | break; | |
952 | case SAVEt_I16: /* I16 reference */ | |
953 | ptr = SSPOPPTR; | |
954 | *(I16*)ptr = (I16)SSPOPINT; | |
955 | break; | |
956 | case SAVEt_I8: /* I8 reference */ | |
957 | ptr = SSPOPPTR; | |
958 | *(I8*)ptr = (I8)SSPOPINT; | |
959 | break; | |
960 | case SAVEt_IV: /* IV reference */ | |
961 | ptr = SSPOPPTR; | |
962 | *(IV*)ptr = (IV)SSPOPIV; | |
963 | break; | |
964 | case SAVEt_NSTAB: | |
965 | gv = (GV*)SSPOPPTR; | |
966 | (void)sv_clear((SV*)gv); | |
967 | break; | |
968 | case SAVEt_DESTRUCTOR: | |
969 | ptr = SSPOPPTR; | |
970 | (*SSPOPDPTR)(ptr); | |
971 | break; | |
fc15ae8f NC |
972 | case SAVEt_COP_ARYBASE: |
973 | ptr = SSPOPPTR; | |
974 | i = SSPOPINT; | |
975 | CopARYBASE_set((COP *)ptr, i); | |
976 | break; | |
68da3b2f NC |
977 | case SAVEt_COMPILE_WARNINGS: |
978 | ptr = SSPOPPTR; | |
72dc9ed5 | 979 | |
68da3b2f NC |
980 | if (!specialWARN(PL_compiling.cop_warnings)) |
981 | PerlMemShared_free(PL_compiling.cop_warnings); | |
72dc9ed5 | 982 | |
10edeb5d | 983 | PL_compiling.cop_warnings = (STRLEN*)ptr; |
72dc9ed5 | 984 | break; |
1ade1aa1 NC |
985 | case SAVEt_RE_STATE: |
986 | { | |
987 | const struct re_save_state *const state | |
988 | = (struct re_save_state *) | |
989 | (PL_savestack + PL_savestack_ix | |
990 | - SAVESTACK_ALLOC_FOR_RE_SAVE_STATE); | |
991 | PL_savestack_ix -= SAVESTACK_ALLOC_FOR_RE_SAVE_STATE; | |
992 | ||
1ade1aa1 NC |
993 | if (PL_reg_start_tmp != state->re_state_reg_start_tmp) { |
994 | Safefree(PL_reg_start_tmp); | |
1ade1aa1 | 995 | } |
1ade1aa1 NC |
996 | if (PL_reg_poscache != state->re_state_reg_poscache) { |
997 | Safefree(PL_reg_poscache); | |
1ade1aa1 | 998 | } |
46ab3289 | 999 | Copy(state, &PL_reg_state, 1, struct re_save_state); |
1ade1aa1 NC |
1000 | } |
1001 | break; | |
79072805 | 1002 | default: |
cea2e8a9 | 1003 | Perl_croak(aTHX_ "panic: leave_scope inconsistency"); |
79072805 LW |
1004 | } |
1005 | } | |
1006 | } | |
8990e307 | 1007 | |
8990e307 | 1008 | void |
864dbfa3 | 1009 | Perl_cx_dump(pTHX_ PERL_CONTEXT *cx) |
8990e307 | 1010 | { |
97aff369 | 1011 | dVAR; |
35ff7856 | 1012 | #ifdef DEBUGGING |
22c35a8c | 1013 | PerlIO_printf(Perl_debug_log, "CX %ld = %s\n", (long)(cx - cxstack), PL_block_type[CxTYPE(cx)]); |
6b35e009 | 1014 | if (CxTYPE(cx) != CXt_SUBST) { |
760ac839 | 1015 | PerlIO_printf(Perl_debug_log, "BLK_OLDSP = %ld\n", (long)cx->blk_oldsp); |
146174a9 CB |
1016 | PerlIO_printf(Perl_debug_log, "BLK_OLDCOP = 0x%"UVxf"\n", |
1017 | PTR2UV(cx->blk_oldcop)); | |
760ac839 LW |
1018 | PerlIO_printf(Perl_debug_log, "BLK_OLDMARKSP = %ld\n", (long)cx->blk_oldmarksp); |
1019 | PerlIO_printf(Perl_debug_log, "BLK_OLDSCOPESP = %ld\n", (long)cx->blk_oldscopesp); | |
146174a9 CB |
1020 | PerlIO_printf(Perl_debug_log, "BLK_OLDPM = 0x%"UVxf"\n", |
1021 | PTR2UV(cx->blk_oldpm)); | |
760ac839 | 1022 | PerlIO_printf(Perl_debug_log, "BLK_GIMME = %s\n", cx->blk_gimme ? "LIST" : "SCALAR"); |
8990e307 | 1023 | } |
6b35e009 | 1024 | switch (CxTYPE(cx)) { |
8990e307 LW |
1025 | case CXt_NULL: |
1026 | case CXt_BLOCK: | |
1027 | break; | |
146174a9 CB |
1028 | case CXt_FORMAT: |
1029 | PerlIO_printf(Perl_debug_log, "BLK_SUB.CV = 0x%"UVxf"\n", | |
1030 | PTR2UV(cx->blk_sub.cv)); | |
1031 | PerlIO_printf(Perl_debug_log, "BLK_SUB.GV = 0x%"UVxf"\n", | |
1032 | PTR2UV(cx->blk_sub.gv)); | |
1033 | PerlIO_printf(Perl_debug_log, "BLK_SUB.DFOUTGV = 0x%"UVxf"\n", | |
1034 | PTR2UV(cx->blk_sub.dfoutgv)); | |
1035 | PerlIO_printf(Perl_debug_log, "BLK_SUB.HASARGS = %d\n", | |
006bba40 | 1036 | (int)CX_SUB_HASARGS_GET(cx)); |
f39bc417 DM |
1037 | PerlIO_printf(Perl_debug_log, "BLK_SUB.RETOP = 0x%"UVxf"\n", |
1038 | PTR2UV(cx->blk_sub.retop)); | |
146174a9 | 1039 | break; |
8990e307 | 1040 | case CXt_SUB: |
146174a9 CB |
1041 | PerlIO_printf(Perl_debug_log, "BLK_SUB.CV = 0x%"UVxf"\n", |
1042 | PTR2UV(cx->blk_sub.cv)); | |
760ac839 | 1043 | PerlIO_printf(Perl_debug_log, "BLK_SUB.OLDDEPTH = %ld\n", |
8990e307 | 1044 | (long)cx->blk_sub.olddepth); |
760ac839 | 1045 | PerlIO_printf(Perl_debug_log, "BLK_SUB.HASARGS = %d\n", |
006bba40 | 1046 | (int)CX_SUB_HASARGS_GET(cx)); |
146174a9 | 1047 | PerlIO_printf(Perl_debug_log, "BLK_SUB.LVAL = %d\n", |
1c75a43b | 1048 | (int)CX_SUB_LVAL(cx)); |
f39bc417 DM |
1049 | PerlIO_printf(Perl_debug_log, "BLK_SUB.RETOP = 0x%"UVxf"\n", |
1050 | PTR2UV(cx->blk_sub.retop)); | |
8990e307 LW |
1051 | break; |
1052 | case CXt_EVAL: | |
760ac839 | 1053 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_IN_EVAL = %ld\n", |
8990e307 | 1054 | (long)cx->blk_eval.old_in_eval); |
760ac839 | 1055 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_OP_TYPE = %s (%s)\n", |
22c35a8c GS |
1056 | PL_op_name[cx->blk_eval.old_op_type], |
1057 | PL_op_desc[cx->blk_eval.old_op_type]); | |
0f79a09d GS |
1058 | if (cx->blk_eval.old_namesv) |
1059 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_NAME = %s\n", | |
aa07b2f6 | 1060 | SvPVX_const(cx->blk_eval.old_namesv)); |
146174a9 CB |
1061 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_EVAL_ROOT = 0x%"UVxf"\n", |
1062 | PTR2UV(cx->blk_eval.old_eval_root)); | |
f39bc417 DM |
1063 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.RETOP = 0x%"UVxf"\n", |
1064 | PTR2UV(cx->blk_eval.retop)); | |
8990e307 LW |
1065 | break; |
1066 | ||
1067 | case CXt_LOOP: | |
760ac839 | 1068 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.LABEL = %s\n", |
8990e307 | 1069 | cx->blk_loop.label); |
760ac839 | 1070 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.RESETSP = %ld\n", |
8990e307 | 1071 | (long)cx->blk_loop.resetsp); |
146174a9 CB |
1072 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.REDO_OP = 0x%"UVxf"\n", |
1073 | PTR2UV(cx->blk_loop.redo_op)); | |
1074 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.NEXT_OP = 0x%"UVxf"\n", | |
1075 | PTR2UV(cx->blk_loop.next_op)); | |
1076 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.LAST_OP = 0x%"UVxf"\n", | |
1077 | PTR2UV(cx->blk_loop.last_op)); | |
760ac839 | 1078 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERIX = %ld\n", |
8990e307 | 1079 | (long)cx->blk_loop.iterix); |
146174a9 CB |
1080 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERARY = 0x%"UVxf"\n", |
1081 | PTR2UV(cx->blk_loop.iterary)); | |
1082 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERVAR = 0x%"UVxf"\n", | |
1083 | PTR2UV(CxITERVAR(cx))); | |
1084 | if (CxITERVAR(cx)) | |
1085 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERSAVE = 0x%"UVxf"\n", | |
1086 | PTR2UV(cx->blk_loop.itersave)); | |
1087 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERLVAL = 0x%"UVxf"\n", | |
1088 | PTR2UV(cx->blk_loop.iterlval)); | |
8990e307 LW |
1089 | break; |
1090 | ||
1091 | case CXt_SUBST: | |
760ac839 | 1092 | PerlIO_printf(Perl_debug_log, "SB_ITERS = %ld\n", |
8990e307 | 1093 | (long)cx->sb_iters); |
760ac839 | 1094 | PerlIO_printf(Perl_debug_log, "SB_MAXITERS = %ld\n", |
8990e307 | 1095 | (long)cx->sb_maxiters); |
35ef4773 GS |
1096 | PerlIO_printf(Perl_debug_log, "SB_RFLAGS = %ld\n", |
1097 | (long)cx->sb_rflags); | |
760ac839 | 1098 | PerlIO_printf(Perl_debug_log, "SB_ONCE = %ld\n", |
8990e307 | 1099 | (long)cx->sb_once); |
760ac839 | 1100 | PerlIO_printf(Perl_debug_log, "SB_ORIG = %s\n", |
8990e307 | 1101 | cx->sb_orig); |
146174a9 CB |
1102 | PerlIO_printf(Perl_debug_log, "SB_DSTR = 0x%"UVxf"\n", |
1103 | PTR2UV(cx->sb_dstr)); | |
1104 | PerlIO_printf(Perl_debug_log, "SB_TARG = 0x%"UVxf"\n", | |
1105 | PTR2UV(cx->sb_targ)); | |
1106 | PerlIO_printf(Perl_debug_log, "SB_S = 0x%"UVxf"\n", | |
1107 | PTR2UV(cx->sb_s)); | |
1108 | PerlIO_printf(Perl_debug_log, "SB_M = 0x%"UVxf"\n", | |
1109 | PTR2UV(cx->sb_m)); | |
1110 | PerlIO_printf(Perl_debug_log, "SB_STREND = 0x%"UVxf"\n", | |
1111 | PTR2UV(cx->sb_strend)); | |
1112 | PerlIO_printf(Perl_debug_log, "SB_RXRES = 0x%"UVxf"\n", | |
1113 | PTR2UV(cx->sb_rxres)); | |
8990e307 LW |
1114 | break; |
1115 | } | |
65e66c80 | 1116 | #else |
96a5add6 | 1117 | PERL_UNUSED_CONTEXT; |
65e66c80 | 1118 | PERL_UNUSED_ARG(cx); |
17c3b450 | 1119 | #endif /* DEBUGGING */ |
35ff7856 | 1120 | } |
241d1a3b NC |
1121 | |
1122 | /* | |
1123 | * Local variables: | |
1124 | * c-indentation-style: bsd | |
1125 | * c-basic-offset: 4 | |
1126 | * indent-tabs-mode: t | |
1127 | * End: | |
1128 | * | |
37442d52 RGS |
1129 | * ex: set ts=8 sts=4 sw=4 noet: |
1130 | */ |