Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* scope.c |
79072805 | 2 | * |
1129b882 NC |
3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
4 | * 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 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 | /* | |
4ac71550 TC |
12 | * For the fashion of Minas Tirith was such that it was built on seven |
13 | * levels... | |
14 | * | |
15 | * [p.751 of _The Lord of the Rings_, V/i: "Minas Tirith"] | |
79072805 LW |
16 | */ |
17 | ||
ddfa107c | 18 | /* This file contains functions to manipulate several of Perl's stacks; |
166f8a29 DM |
19 | * in particular it contains code to push various types of things onto |
20 | * the savestack, then to pop them off and perform the correct restorative | |
21 | * action for each one. This corresponds to the cleanup Perl does at | |
22 | * each scope exit. | |
23 | */ | |
24 | ||
79072805 | 25 | #include "EXTERN.h" |
864dbfa3 | 26 | #define PERL_IN_SCOPE_C |
79072805 LW |
27 | #include "perl.h" |
28 | ||
a0d0e21e | 29 | SV** |
fc16c392 | 30 | Perl_stack_grow(pTHX_ SV **sp, SV **p, SSize_t n) |
a0d0e21e | 31 | { |
402d079e DM |
32 | SSize_t extra; |
33 | SSize_t current = (p - PL_stack_base); | |
34 | ||
7918f24d NC |
35 | PERL_ARGS_ASSERT_STACK_GROW; |
36 | ||
402d079e | 37 | if (UNLIKELY(n < 0)) |
6768377c | 38 | Perl_croak(aTHX_ |
147e3846 | 39 | "panic: stack_grow() negative count (%" IVdf ")", (IV)n); |
6768377c | 40 | |
3280af22 | 41 | PL_stack_sp = sp; |
402d079e DM |
42 | extra = |
43 | #ifdef STRESS_REALLOC | |
44 | 1; | |
2ce36478 | 45 | #else |
402d079e | 46 | 128; |
2ce36478 | 47 | #endif |
402d079e DM |
48 | /* If the total might wrap, panic instead. This is really testing |
49 | * that (current + n + extra < SSize_t_MAX), but done in a way that | |
50 | * can't wrap */ | |
51 | if (UNLIKELY( current > SSize_t_MAX - extra | |
52 | || current + extra > SSize_t_MAX - n | |
53 | )) | |
54 | /* diag_listed_as: Out of memory during %s extend */ | |
55 | Perl_croak(aTHX_ "Out of memory during stack extend"); | |
56 | ||
57 | av_extend(PL_curstack, current + n + extra); | |
3280af22 | 58 | return PL_stack_sp; |
a0d0e21e LW |
59 | } |
60 | ||
2ce36478 SM |
61 | #ifndef STRESS_REALLOC |
62 | #define GROW(old) ((old) * 3 / 2) | |
63 | #else | |
64 | #define GROW(old) ((old) + 1) | |
65 | #endif | |
66 | ||
e336de0d | 67 | PERL_SI * |
864dbfa3 | 68 | Perl_new_stackinfo(pTHX_ I32 stitems, I32 cxitems) |
e336de0d GS |
69 | { |
70 | PERL_SI *si; | |
a02a5408 | 71 | Newx(si, 1, PERL_SI); |
e336de0d GS |
72 | si->si_stack = newAV(); |
73 | AvREAL_off(si->si_stack); | |
74 | av_extend(si->si_stack, stitems > 0 ? stitems-1 : 0); | |
3280af22 | 75 | AvALLOC(si->si_stack)[0] = &PL_sv_undef; |
e336de0d GS |
76 | AvFILLp(si->si_stack) = 0; |
77 | si->si_prev = 0; | |
78 | si->si_next = 0; | |
79 | si->si_cxmax = cxitems - 1; | |
80 | si->si_cxix = -1; | |
e788e7d3 | 81 | si->si_type = PERLSI_UNDEF; |
a02a5408 | 82 | Newx(si->si_cxstack, cxitems, PERL_CONTEXT); |
490576d1 | 83 | /* Without any kind of initialising CX_PUSHSUBST() |
9965345d | 84 | * in pp_subst() will read uninitialised heap. */ |
7e337ee0 | 85 | PoisonNew(si->si_cxstack, cxitems, PERL_CONTEXT); |
e336de0d GS |
86 | return si; |
87 | } | |
88 | ||
79072805 | 89 | I32 |
864dbfa3 | 90 | Perl_cxinc(pTHX) |
79072805 | 91 | { |
a3b680e6 | 92 | const IV old_max = cxstack_max; |
00195859 HS |
93 | const IV new_max = GROW(cxstack_max); |
94 | Renew(cxstack, new_max + 1, PERL_CONTEXT); | |
95 | cxstack_max = new_max; | |
9965345d JH |
96 | /* Without any kind of initialising deep enough recursion |
97 | * will end up reading uninitialised PERL_CONTEXTs. */ | |
00195859 | 98 | PoisonNew(cxstack + old_max + 1, new_max - old_max, PERL_CONTEXT); |
79072805 LW |
99 | return cxstack_ix + 1; |
100 | } | |
101 | ||
79072805 | 102 | void |
864dbfa3 | 103 | Perl_push_scope(pTHX) |
79072805 | 104 | { |
5d9574c1 | 105 | if (UNLIKELY(PL_scopestack_ix == PL_scopestack_max)) { |
00195859 HS |
106 | const IV new_max = GROW(PL_scopestack_max); |
107 | Renew(PL_scopestack, new_max, I32); | |
d343c3ef | 108 | #ifdef DEBUGGING |
00195859 | 109 | Renew(PL_scopestack_name, new_max, const char*); |
520bb150 | 110 | #endif |
00195859 | 111 | PL_scopestack_max = new_max; |
79072805 | 112 | } |
d343c3ef GG |
113 | #ifdef DEBUGGING |
114 | PL_scopestack_name[PL_scopestack_ix] = "unknown"; | |
115 | #endif | |
3280af22 | 116 | PL_scopestack[PL_scopestack_ix++] = PL_savestack_ix; |
79072805 LW |
117 | |
118 | } | |
119 | ||
120 | void | |
864dbfa3 | 121 | Perl_pop_scope(pTHX) |
79072805 | 122 | { |
35a4481c | 123 | const I32 oldsave = PL_scopestack[--PL_scopestack_ix]; |
8990e307 | 124 | LEAVE_SCOPE(oldsave); |
79072805 LW |
125 | } |
126 | ||
ba5248fc | 127 | I32 * |
864dbfa3 | 128 | Perl_markstack_grow(pTHX) |
a0d0e21e | 129 | { |
35a4481c AL |
130 | const I32 oldmax = PL_markstack_max - PL_markstack; |
131 | const I32 newmax = GROW(oldmax); | |
a0d0e21e | 132 | |
3280af22 | 133 | Renew(PL_markstack, newmax, I32); |
3280af22 | 134 | PL_markstack_max = PL_markstack + newmax; |
ba5248fc | 135 | PL_markstack_ptr = PL_markstack + oldmax; |
30773234 | 136 | DEBUG_s(DEBUG_v(PerlIO_printf(Perl_debug_log, |
147e3846 | 137 | "MARK grow %p %" IVdf " by %" IVdf "\n", |
30773234 | 138 | PL_markstack_ptr, (IV)*PL_markstack_ptr, (IV)oldmax))); |
ba5248fc | 139 | return PL_markstack_ptr; |
a0d0e21e LW |
140 | } |
141 | ||
142 | void | |
864dbfa3 | 143 | Perl_savestack_grow(pTHX) |
79072805 | 144 | { |
00195859 | 145 | IV new_max; |
49706441 | 146 | #ifdef STRESS_REALLOC |
00195859 | 147 | new_max = PL_savestack_max + SS_MAXPUSH; |
49706441 | 148 | #else |
00195859 | 149 | new_max = GROW(PL_savestack_max); |
49706441 | 150 | #endif |
3caf0269 DM |
151 | /* Note that we allocate SS_MAXPUSH slots higher than ss_max |
152 | * so that SS_ADD_END(), SSGROW() etc can do a simper check */ | |
00195859 HS |
153 | Renew(PL_savestack, new_max + SS_MAXPUSH, ANY); |
154 | PL_savestack_max = new_max; | |
79072805 LW |
155 | } |
156 | ||
4b3c1a47 AE |
157 | void |
158 | Perl_savestack_grow_cnt(pTHX_ I32 need) | |
159 | { | |
00195859 | 160 | const IV new_max = PL_savestack_ix + need; |
3caf0269 DM |
161 | /* Note that we allocate SS_MAXPUSH slots higher than ss_max |
162 | * so that SS_ADD_END(), SSGROW() etc can do a simper check */ | |
00195859 HS |
163 | Renew(PL_savestack, new_max + SS_MAXPUSH, ANY); |
164 | PL_savestack_max = new_max; | |
4b3c1a47 AE |
165 | } |
166 | ||
2ce36478 SM |
167 | #undef GROW |
168 | ||
a953aca5 DD |
169 | /* The original function was called Perl_tmps_grow and was removed from public |
170 | API, Perl_tmps_grow_p is the replacement and it used in public macros but | |
171 | isn't public itself. | |
172 | ||
173 | Perl_tmps_grow_p takes a proposed ix. A proposed ix is PL_tmps_ix + extend_by, | |
174 | where the result of (PL_tmps_ix + extend_by) is >= PL_tmps_max | |
175 | Upon return, PL_tmps_stack[ix] will be a valid address. For machine code | |
176 | optimization and register usage reasons, the proposed ix passed into | |
177 | tmps_grow is returned to the caller which the caller can then use to write | |
178 | an SV * to PL_tmps_stack[ix]. If the caller was using tmps_grow in | |
179 | pre-extend mode (EXTEND_MORTAL macro), then it ignores the return value of | |
180 | tmps_grow. Note, tmps_grow DOES NOT write ix to PL_tmps_ix, the caller | |
181 | must assign ix or ret val of tmps_grow to PL_temps_ix themselves if that is | |
182 | appropriate. The assignment to PL_temps_ix can happen before or after | |
183 | tmps_grow call since tmps_grow doesn't look at PL_tmps_ix. | |
184 | */ | |
185 | ||
186 | SSize_t | |
187 | Perl_tmps_grow_p(pTHX_ SSize_t ix) | |
677b06e3 | 188 | { |
a953aca5 | 189 | SSize_t extend_to = ix; |
677b06e3 | 190 | #ifndef STRESS_REALLOC |
a953aca5 DD |
191 | if (ix - PL_tmps_max < 128) |
192 | extend_to += (PL_tmps_max < 512) ? 128 : 512; | |
677b06e3 | 193 | #endif |
00195859 | 194 | Renew(PL_tmps_stack, extend_to + 1, SV*); |
a953aca5 | 195 | PL_tmps_max = extend_to + 1; |
a953aca5 | 196 | return ix; |
677b06e3 GS |
197 | } |
198 | ||
199 | ||
200 | void | |
864dbfa3 | 201 | Perl_free_tmps(pTHX) |
79072805 LW |
202 | { |
203 | /* XXX should tmps_floor live in cxstack? */ | |
e8eb279c | 204 | const SSize_t myfloor = PL_tmps_floor; |
3280af22 | 205 | while (PL_tmps_ix > myfloor) { /* clean up after last statement */ |
22ade07d | 206 | SV* const sv = PL_tmps_stack[PL_tmps_ix--]; |
72581b5b VP |
207 | #ifdef PERL_POISON |
208 | PoisonWith(PL_tmps_stack + PL_tmps_ix + 1, 1, SV *, 0xAB); | |
22ade07d | 209 | #endif |
520275ba | 210 | if (LIKELY(sv)) { |
463ee0b2 | 211 | SvTEMP_off(sv); |
4a9a56a7 | 212 | SvREFCNT_dec_NN(sv); /* note, can modify tmps_ix!!! */ |
463ee0b2 | 213 | } |
79072805 LW |
214 | } |
215 | } | |
216 | ||
76e3520e | 217 | STATIC SV * |
af7df257 | 218 | S_save_scalar_at(pTHX_ SV **sptr, const U32 flags) |
79072805 | 219 | { |
75d34a09 | 220 | SV * osv; |
eb578fdb | 221 | SV *sv; |
79072805 | 222 | |
7918f24d NC |
223 | PERL_ARGS_ASSERT_SAVE_SCALAR_AT; |
224 | ||
75d34a09 | 225 | osv = *sptr; |
3c84a230 DM |
226 | if (flags & SAVEf_KEEPOLDELEM) |
227 | sv = osv; | |
228 | else { | |
229 | sv = (*sptr = newSV(0)); | |
230 | if (SvTYPE(osv) >= SVt_PVMG && SvMAGIC(osv)) | |
231 | mg_localize(osv, sv, cBOOL(flags & SAVEf_SETMAGIC)); | |
79072805 | 232 | } |
75d34a09 | 233 | |
79072805 LW |
234 | return sv; |
235 | } | |
236 | ||
dfcd3de5 NC |
237 | void |
238 | Perl_save_pushptrptr(pTHX_ void *const ptr1, void *const ptr2, const int type) | |
e22024d3 | 239 | { |
a3444cc5 DM |
240 | dSS_ADD; |
241 | SS_ADD_PTR(ptr1); | |
242 | SS_ADD_PTR(ptr2); | |
243 | SS_ADD_UV(type); | |
244 | SS_ADD_END(3); | |
e22024d3 NC |
245 | } |
246 | ||
7a4c00b4 | 247 | SV * |
864dbfa3 | 248 | Perl_save_scalar(pTHX_ GV *gv) |
7a4c00b4 | 249 | { |
13c59d41 | 250 | SV ** const sptr = &GvSVn(gv); |
7918f24d NC |
251 | |
252 | PERL_ARGS_ASSERT_SAVE_SCALAR; | |
253 | ||
13c59d41 | 254 | if (UNLIKELY(SvGMAGICAL(*sptr))) { |
b492a59e | 255 | PL_localizing = 1; |
13c59d41 | 256 | (void)mg_get(*sptr); |
b492a59e DM |
257 | PL_localizing = 0; |
258 | } | |
13c59d41 MH |
259 | save_pushptrptr(SvREFCNT_inc_simple(gv), SvREFCNT_inc(*sptr), SAVEt_SV); |
260 | return save_scalar_at(sptr, SAVEf_SETMAGIC); /* XXX - FIXME - see #60360 */ | |
7a4c00b4 | 261 | } |
262 | ||
f4dd75d9 | 263 | /* Like save_sptr(), but also SvREFCNT_dec()s the new value. Can be used to |
b9d12d37 GS |
264 | * restore a global SV to its prior contents, freeing new value. */ |
265 | void | |
864dbfa3 | 266 | Perl_save_generic_svref(pTHX_ SV **sptr) |
b9d12d37 | 267 | { |
7918f24d NC |
268 | PERL_ARGS_ASSERT_SAVE_GENERIC_SVREF; |
269 | ||
e22024d3 | 270 | save_pushptrptr(sptr, SvREFCNT_inc(*sptr), SAVEt_GENERIC_SVREF); |
b9d12d37 GS |
271 | } |
272 | ||
f4dd75d9 GS |
273 | /* Like save_pptr(), but also Safefree()s the new value if it is different |
274 | * from the old one. Can be used to restore a global char* to its prior | |
275 | * contents, freeing new value. */ | |
276 | void | |
277 | Perl_save_generic_pvref(pTHX_ char **str) | |
278 | { | |
7918f24d NC |
279 | PERL_ARGS_ASSERT_SAVE_GENERIC_PVREF; |
280 | ||
e22024d3 | 281 | save_pushptrptr(*str, str, SAVEt_GENERIC_PVREF); |
f4dd75d9 GS |
282 | } |
283 | ||
05ec9bb3 NIS |
284 | /* Like save_generic_pvref(), but uses PerlMemShared_free() rather than Safefree(). |
285 | * Can be used to restore a shared global char* to its prior | |
286 | * contents, freeing new value. */ | |
287 | void | |
288 | Perl_save_shared_pvref(pTHX_ char **str) | |
289 | { | |
7918f24d NC |
290 | PERL_ARGS_ASSERT_SAVE_SHARED_PVREF; |
291 | ||
e22024d3 | 292 | save_pushptrptr(str, *str, SAVEt_SHARED_PVREF); |
05ec9bb3 NIS |
293 | } |
294 | ||
14f338dc DM |
295 | /* set the SvFLAGS specified by mask to the values in val */ |
296 | ||
297 | void | |
298 | Perl_save_set_svflags(pTHX_ SV* sv, U32 mask, U32 val) | |
299 | { | |
a3444cc5 | 300 | dSS_ADD; |
7918f24d NC |
301 | |
302 | PERL_ARGS_ASSERT_SAVE_SET_SVFLAGS; | |
303 | ||
a3444cc5 DM |
304 | SS_ADD_PTR(sv); |
305 | SS_ADD_INT(mask); | |
306 | SS_ADD_INT(val); | |
307 | SS_ADD_UV(SAVEt_SET_SVFLAGS); | |
308 | SS_ADD_END(4); | |
14f338dc DM |
309 | } |
310 | ||
364bbfa4 TC |
311 | /* |
312 | =for apidoc save_gp | |
313 | ||
314 | Saves the current GP of gv on the save stack to be restored on scope exit. | |
315 | ||
316 | If empty is true, replace the GP with a new GP. | |
317 | ||
318 | If empty is false, mark gv with GVf_INTRO so the next reference | |
319 | assigned is localized, which is how C< local *foo = $someref; > works. | |
320 | ||
321 | =cut | |
322 | */ | |
323 | ||
79072805 | 324 | void |
864dbfa3 | 325 | Perl_save_gp(pTHX_ GV *gv, I32 empty) |
79072805 | 326 | { |
7918f24d NC |
327 | PERL_ARGS_ASSERT_SAVE_GP; |
328 | ||
10507e11 | 329 | save_pushptrptr(SvREFCNT_inc(gv), GvGP(gv), SAVEt_GP); |
79072805 | 330 | |
5f05dabc | 331 | if (empty) { |
12816592 | 332 | GP *gp = Perl_newGP(aTHX_ gv); |
959f7ad7 | 333 | HV * const stash = GvSTASH(gv); |
3d460042 FC |
334 | bool isa_changed = 0; |
335 | ||
336 | if (stash && HvENAME(stash)) { | |
337 | if (GvNAMELEN(gv) == 3 && strnEQ(GvNAME(gv), "ISA", 3)) | |
338 | isa_changed = TRUE; | |
339 | else if (GvCVu(gv)) | |
340 | /* taking a method out of circulation ("local")*/ | |
341 | mro_method_changed_in(stash); | |
342 | } | |
146174a9 CB |
343 | if (GvIOp(gv) && (IoFLAGS(GvIOp(gv)) & IOf_ARGV)) { |
344 | gp->gp_io = newIO(); | |
345 | IoFLAGS(gp->gp_io) |= IOf_ARGV|IOf_START; | |
346 | } | |
c43ae56f | 347 | GvGP_set(gv,gp); |
3d460042 | 348 | if (isa_changed) mro_isa_changed_in(stash); |
5f05dabc | 349 | } |
350 | else { | |
44a8e56a | 351 | gp_ref(GvGP(gv)); |
5f05dabc | 352 | GvINTRO_on(gv); |
353 | } | |
79072805 | 354 | } |
79072805 | 355 | |
79072805 | 356 | AV * |
864dbfa3 | 357 | Perl_save_ary(pTHX_ GV *gv) |
79072805 | 358 | { |
901017d6 | 359 | AV * const oav = GvAVn(gv); |
67a38de0 | 360 | AV *av; |
fb73857a | 361 | |
7918f24d NC |
362 | PERL_ARGS_ASSERT_SAVE_ARY; |
363 | ||
5d9574c1 | 364 | if (UNLIKELY(!AvREAL(oav) && AvREIFY(oav))) |
67a38de0 | 365 | av_reify(oav); |
01433346 | 366 | save_pushptrptr(SvREFCNT_inc_simple_NN(gv), oav, SAVEt_AV); |
79072805 | 367 | |
4608196e | 368 | GvAV(gv) = NULL; |
fb73857a | 369 | av = GvAVn(gv); |
5d9574c1 | 370 | if (UNLIKELY(SvMAGIC(oav))) |
9711599e | 371 | mg_localize(MUTABLE_SV(oav), MUTABLE_SV(av), TRUE); |
fb73857a | 372 | return av; |
79072805 LW |
373 | } |
374 | ||
375 | HV * | |
864dbfa3 | 376 | Perl_save_hash(pTHX_ GV *gv) |
79072805 | 377 | { |
fb73857a | 378 | HV *ohv, *hv; |
379 | ||
7918f24d NC |
380 | PERL_ARGS_ASSERT_SAVE_HASH; |
381 | ||
01433346 FC |
382 | save_pushptrptr( |
383 | SvREFCNT_inc_simple_NN(gv), (ohv = GvHVn(gv)), SAVEt_HV | |
384 | ); | |
79072805 | 385 | |
4608196e | 386 | GvHV(gv) = NULL; |
fb73857a | 387 | hv = GvHVn(gv); |
5d9574c1 | 388 | if (UNLIKELY(SvMAGIC(ohv))) |
9711599e | 389 | mg_localize(MUTABLE_SV(ohv), MUTABLE_SV(hv), TRUE); |
fb73857a | 390 | return hv; |
79072805 LW |
391 | } |
392 | ||
393 | void | |
5aaab254 | 394 | Perl_save_item(pTHX_ SV *item) |
79072805 | 395 | { |
eb578fdb | 396 | SV * const sv = newSVsv(item); |
79072805 | 397 | |
7918f24d NC |
398 | PERL_ARGS_ASSERT_SAVE_ITEM; |
399 | ||
e22024d3 NC |
400 | save_pushptrptr(item, /* remember the pointer */ |
401 | sv, /* remember the value */ | |
402 | SAVEt_ITEM); | |
79072805 LW |
403 | } |
404 | ||
405 | void | |
1409bc06 | 406 | Perl_save_bool(pTHX_ bool *boolp) |
79072805 | 407 | { |
a3444cc5 | 408 | dSS_ADD; |
7918f24d | 409 | |
1409bc06 | 410 | PERL_ARGS_ASSERT_SAVE_BOOL; |
7918f24d | 411 | |
a3444cc5 DM |
412 | SS_ADD_PTR(boolp); |
413 | SS_ADD_UV(SAVEt_BOOL | (*boolp << 8)); | |
414 | SS_ADD_END(2); | |
1409bc06 NC |
415 | } |
416 | ||
7623d426 NC |
417 | void |
418 | Perl_save_pushi32ptr(pTHX_ const I32 i, void *const ptr, const int type) | |
1409bc06 | 419 | { |
a3444cc5 DM |
420 | dSS_ADD; |
421 | ||
422 | SS_ADD_INT(i); | |
423 | SS_ADD_PTR(ptr); | |
424 | SS_ADD_UV(type); | |
425 | SS_ADD_END(3); | |
79072805 LW |
426 | } |
427 | ||
428 | void | |
1409bc06 | 429 | Perl_save_int(pTHX_ int *intp) |
9febdf04 | 430 | { |
d172696c | 431 | const int i = *intp; |
9b139d09 | 432 | UV type = ((UV)((UV)i << SAVE_TIGHT_SHIFT) | SAVEt_INT_SMALL); |
d172696c DM |
433 | int size = 2; |
434 | dSS_ADD; | |
7918f24d | 435 | |
1409bc06 | 436 | PERL_ARGS_ASSERT_SAVE_INT; |
7918f24d | 437 | |
5d9574c1 | 438 | if (UNLIKELY((int)(type >> SAVE_TIGHT_SHIFT) != i)) { |
d172696c DM |
439 | SS_ADD_INT(i); |
440 | type = SAVEt_INT; | |
441 | size++; | |
442 | } | |
443 | SS_ADD_PTR(intp); | |
444 | SS_ADD_UV(type); | |
445 | SS_ADD_END(size); | |
9febdf04 RH |
446 | } |
447 | ||
448 | void | |
58188858 RGS |
449 | Perl_save_I8(pTHX_ I8 *bytep) |
450 | { | |
a3444cc5 | 451 | dSS_ADD; |
7918f24d NC |
452 | |
453 | PERL_ARGS_ASSERT_SAVE_I8; | |
454 | ||
a3444cc5 DM |
455 | SS_ADD_PTR(bytep); |
456 | SS_ADD_UV(SAVEt_I8 | ((UV)*bytep << 8)); | |
457 | SS_ADD_END(2); | |
58188858 RGS |
458 | } |
459 | ||
460 | void | |
87a84751 JH |
461 | Perl_save_I16(pTHX_ I16 *intp) |
462 | { | |
a3444cc5 | 463 | dSS_ADD; |
7918f24d NC |
464 | |
465 | PERL_ARGS_ASSERT_SAVE_I16; | |
466 | ||
a3444cc5 DM |
467 | SS_ADD_PTR(intp); |
468 | SS_ADD_UV(SAVEt_I16 | ((UV)*intp << 8)); | |
469 | SS_ADD_END(2); | |
87a84751 JH |
470 | } |
471 | ||
472 | void | |
864dbfa3 | 473 | Perl_save_I32(pTHX_ I32 *intp) |
79072805 | 474 | { |
d172696c | 475 | const I32 i = *intp; |
9b139d09 | 476 | UV type = ((I32)((U32)i << SAVE_TIGHT_SHIFT) | SAVEt_I32_SMALL); |
d172696c DM |
477 | int size = 2; |
478 | dSS_ADD; | |
7918f24d NC |
479 | |
480 | PERL_ARGS_ASSERT_SAVE_I32; | |
481 | ||
5d9574c1 | 482 | if (UNLIKELY((I32)(type >> SAVE_TIGHT_SHIFT) != i)) { |
d172696c DM |
483 | SS_ADD_INT(i); |
484 | type = SAVEt_I32; | |
485 | size++; | |
486 | } | |
487 | SS_ADD_PTR(intp); | |
488 | SS_ADD_UV(type); | |
489 | SS_ADD_END(size); | |
79072805 LW |
490 | } |
491 | ||
e8eb279c FC |
492 | void |
493 | Perl_save_strlen(pTHX_ STRLEN *ptr) | |
494 | { | |
e8eb279c FC |
495 | dSS_ADD; |
496 | ||
497 | PERL_ARGS_ASSERT_SAVE_STRLEN; | |
498 | ||
499 | SS_ADD_IV(*ptr); | |
500 | SS_ADD_PTR(ptr); | |
501 | SS_ADD_UV(SAVEt_STRLEN); | |
502 | SS_ADD_END(3); | |
503 | } | |
504 | ||
f8c11501 FC |
505 | void |
506 | Perl_save_iv(pTHX_ IV *ivp) | |
507 | { | |
508 | PERL_ARGS_ASSERT_SAVE_IV; | |
509 | ||
510 | SSCHECK(3); | |
511 | SSPUSHIV(*ivp); | |
512 | SSPUSHPTR(ivp); | |
513 | SSPUSHUV(SAVEt_IV); | |
514 | } | |
515 | ||
85e6fe83 LW |
516 | /* Cannot use save_sptr() to store a char* since the SV** cast will |
517 | * force word-alignment and we'll miss the pointer. | |
518 | */ | |
519 | void | |
864dbfa3 | 520 | Perl_save_pptr(pTHX_ char **pptr) |
85e6fe83 | 521 | { |
7918f24d NC |
522 | PERL_ARGS_ASSERT_SAVE_PPTR; |
523 | ||
e22024d3 | 524 | save_pushptrptr(*pptr, pptr, SAVEt_PPTR); |
85e6fe83 LW |
525 | } |
526 | ||
79072805 | 527 | void |
146174a9 CB |
528 | Perl_save_vptr(pTHX_ void *ptr) |
529 | { | |
7918f24d NC |
530 | PERL_ARGS_ASSERT_SAVE_VPTR; |
531 | ||
e22024d3 | 532 | save_pushptrptr(*(char**)ptr, ptr, SAVEt_VPTR); |
146174a9 CB |
533 | } |
534 | ||
535 | void | |
864dbfa3 | 536 | Perl_save_sptr(pTHX_ SV **sptr) |
79072805 | 537 | { |
7918f24d NC |
538 | PERL_ARGS_ASSERT_SAVE_SPTR; |
539 | ||
e22024d3 | 540 | save_pushptrptr(*sptr, sptr, SAVEt_SPTR); |
79072805 LW |
541 | } |
542 | ||
c3564e5c | 543 | void |
09edbca0 | 544 | Perl_save_padsv_and_mortalize(pTHX_ PADOFFSET off) |
c3564e5c | 545 | { |
a3444cc5 DM |
546 | dSS_ADD; |
547 | ||
f3548bdc | 548 | ASSERT_CURPAD_ACTIVE("save_padsv"); |
a3444cc5 DM |
549 | SS_ADD_PTR(SvREFCNT_inc_simple_NN(PL_curpad[off])); |
550 | SS_ADD_PTR(PL_comppad); | |
03dba561 | 551 | SS_ADD_UV((UV)off); |
a3444cc5 DM |
552 | SS_ADD_UV(SAVEt_PADSV_AND_MORTALIZE); |
553 | SS_ADD_END(4); | |
c3564e5c GS |
554 | } |
555 | ||
79072805 | 556 | void |
864dbfa3 | 557 | Perl_save_hptr(pTHX_ HV **hptr) |
79072805 | 558 | { |
7918f24d NC |
559 | PERL_ARGS_ASSERT_SAVE_HPTR; |
560 | ||
e22024d3 | 561 | save_pushptrptr(*hptr, hptr, SAVEt_HPTR); |
79072805 LW |
562 | } |
563 | ||
564 | void | |
864dbfa3 | 565 | Perl_save_aptr(pTHX_ AV **aptr) |
79072805 | 566 | { |
7918f24d NC |
567 | PERL_ARGS_ASSERT_SAVE_APTR; |
568 | ||
e22024d3 | 569 | save_pushptrptr(*aptr, aptr, SAVEt_APTR); |
79072805 LW |
570 | } |
571 | ||
572 | void | |
2fd8beea | 573 | Perl_save_pushptr(pTHX_ void *const ptr, const int type) |
8990e307 | 574 | { |
a3444cc5 DM |
575 | dSS_ADD; |
576 | SS_ADD_PTR(ptr); | |
577 | SS_ADD_UV(type); | |
578 | SS_ADD_END(2); | |
8990e307 LW |
579 | } |
580 | ||
581 | void | |
864dbfa3 | 582 | Perl_save_clearsv(pTHX_ SV **svp) |
8990e307 | 583 | { |
cdcdfc56 NC |
584 | const UV offset = svp - PL_curpad; |
585 | const UV offset_shifted = offset << SAVE_TIGHT_SHIFT; | |
7918f24d NC |
586 | |
587 | PERL_ARGS_ASSERT_SAVE_CLEARSV; | |
588 | ||
f3548bdc | 589 | ASSERT_CURPAD_ACTIVE("save_clearsv"); |
623e28c6 | 590 | SvPADSTALE_off(*svp); /* mark lexical as active */ |
5d9574c1 | 591 | if (UNLIKELY((offset_shifted >> SAVE_TIGHT_SHIFT) != offset)) { |
147e3846 | 592 | Perl_croak(aTHX_ "panic: pad offset %" UVuf " out of range (%p-%p)", |
cdcdfc56 | 593 | offset, svp, PL_curpad); |
a3444cc5 | 594 | } |
cdcdfc56 | 595 | |
a3444cc5 DM |
596 | { |
597 | dSS_ADD; | |
598 | SS_ADD_UV(offset_shifted | SAVEt_CLEARSV); | |
599 | SS_ADD_END(1); | |
600 | } | |
8990e307 LW |
601 | } |
602 | ||
603 | void | |
864dbfa3 | 604 | Perl_save_delete(pTHX_ HV *hv, char *key, I32 klen) |
8990e307 | 605 | { |
7918f24d NC |
606 | PERL_ARGS_ASSERT_SAVE_DELETE; |
607 | ||
85a721ca | 608 | save_pushptri32ptr(key, klen, SvREFCNT_inc_simple(hv), SAVEt_DELETE); |
8990e307 LW |
609 | } |
610 | ||
611 | void | |
af097752 VP |
612 | Perl_save_hdelete(pTHX_ HV *hv, SV *keysv) |
613 | { | |
614 | STRLEN len; | |
615 | I32 klen; | |
616 | const char *key; | |
617 | ||
618 | PERL_ARGS_ASSERT_SAVE_HDELETE; | |
619 | ||
620 | key = SvPV_const(keysv, len); | |
621 | klen = SvUTF8(keysv) ? -(I32)len : (I32)len; | |
622 | SvREFCNT_inc_simple_void_NN(hv); | |
623 | save_pushptri32ptr(savepvn(key, len), klen, hv, SAVEt_DELETE); | |
624 | } | |
625 | ||
626 | void | |
c70927a6 | 627 | Perl_save_adelete(pTHX_ AV *av, SSize_t key) |
c68ec7a9 | 628 | { |
c70927a6 | 629 | dSS_ADD; |
c68ec7a9 VP |
630 | |
631 | PERL_ARGS_ASSERT_SAVE_ADELETE; | |
632 | ||
633 | SvREFCNT_inc_void(av); | |
c70927a6 FC |
634 | SS_ADD_UV(key); |
635 | SS_ADD_PTR(av); | |
636 | SS_ADD_IV(SAVEt_ADELETE); | |
637 | SS_ADD_END(3); | |
c68ec7a9 VP |
638 | } |
639 | ||
640 | void | |
12ab1f58 JH |
641 | Perl_save_destructor(pTHX_ DESTRUCTORFUNC_NOCONTEXT_t f, void* p) |
642 | { | |
a3444cc5 | 643 | dSS_ADD; |
7918f24d NC |
644 | PERL_ARGS_ASSERT_SAVE_DESTRUCTOR; |
645 | ||
a3444cc5 DM |
646 | SS_ADD_DPTR(f); |
647 | SS_ADD_PTR(p); | |
648 | SS_ADD_UV(SAVEt_DESTRUCTOR); | |
649 | SS_ADD_END(3); | |
12ab1f58 JH |
650 | } |
651 | ||
652 | void | |
146174a9 CB |
653 | Perl_save_destructor_x(pTHX_ DESTRUCTORFUNC_t f, void* p) |
654 | { | |
a3444cc5 DM |
655 | dSS_ADD; |
656 | ||
657 | SS_ADD_DXPTR(f); | |
658 | SS_ADD_PTR(p); | |
659 | SS_ADD_UV(SAVEt_DESTRUCTOR_X); | |
660 | SS_ADD_END(3); | |
146174a9 CB |
661 | } |
662 | ||
663 | void | |
da8315f8 NC |
664 | Perl_save_hints(pTHX) |
665 | { | |
20439bc7 | 666 | COPHH *save_cophh = cophh_copy(CopHINTHASH_get(&PL_compiling)); |
da8315f8 | 667 | if (PL_hints & HINT_LOCALIZE_HH) { |
52c7aca6 FC |
668 | HV *oldhh = GvHV(PL_hintgv); |
669 | save_pushptri32ptr(oldhh, PL_hints, save_cophh, SAVEt_HINTS); | |
670 | GvHV(PL_hintgv) = NULL; /* in case copying dies */ | |
671 | GvHV(PL_hintgv) = hv_copy_hints_hv(oldhh); | |
be84297e | 672 | } else { |
20439bc7 | 673 | save_pushi32ptr(PL_hints, save_cophh, SAVEt_HINTS); |
da8315f8 | 674 | } |
be84297e NC |
675 | } |
676 | ||
677 | static void | |
678 | S_save_pushptri32ptr(pTHX_ void *const ptr1, const I32 i, void *const ptr2, | |
679 | const int type) | |
680 | { | |
a3444cc5 DM |
681 | dSS_ADD; |
682 | SS_ADD_PTR(ptr1); | |
683 | SS_ADD_INT(i); | |
684 | SS_ADD_PTR(ptr2); | |
685 | SS_ADD_UV(type); | |
686 | SS_ADD_END(4); | |
da8315f8 NC |
687 | } |
688 | ||
689 | void | |
c70927a6 FC |
690 | Perl_save_aelem_flags(pTHX_ AV *av, SSize_t idx, SV **sptr, |
691 | const U32 flags) | |
4e4c362e | 692 | { |
20b7effb | 693 | dSS_ADD; |
bfc4de9f | 694 | SV *sv; |
7918f24d | 695 | |
91d1c79f | 696 | PERL_ARGS_ASSERT_SAVE_AELEM_FLAGS; |
7918f24d | 697 | |
0cbee0a4 | 698 | SvGETMAGIC(*sptr); |
c70927a6 FC |
699 | SS_ADD_PTR(SvREFCNT_inc_simple(av)); |
700 | SS_ADD_IV(idx); | |
701 | SS_ADD_PTR(SvREFCNT_inc(*sptr)); | |
702 | SS_ADD_UV(SAVEt_AELEM); | |
703 | SS_ADD_END(4); | |
1cdc9186 FC |
704 | /* The array needs to hold a reference count on its new element, so it |
705 | must be AvREAL. */ | |
5d9574c1 | 706 | if (UNLIKELY(!AvREAL(av) && AvREIFY(av))) |
1cdc9186 | 707 | av_reify(av); |
91d1c79f | 708 | save_scalar_at(sptr, flags); /* XXX - FIXME - see #60360 */ |
75d34a09 VP |
709 | if (flags & SAVEf_KEEPOLDELEM) |
710 | return; | |
bfc4de9f DM |
711 | sv = *sptr; |
712 | /* If we're localizing a tied array element, this new sv | |
713 | * won't actually be stored in the array - so it won't get | |
714 | * reaped when the localize ends. Ensure it gets reaped by | |
715 | * mortifying it instead. DAPM */ | |
5d9574c1 | 716 | if (UNLIKELY(SvTIED_mg((const SV *)av, PERL_MAGIC_tied))) |
bfc4de9f | 717 | sv_2mortal(sv); |
4e4c362e GS |
718 | } |
719 | ||
720 | void | |
af7df257 | 721 | Perl_save_helem_flags(pTHX_ HV *hv, SV *key, SV **sptr, const U32 flags) |
4e4c362e | 722 | { |
bfc4de9f | 723 | SV *sv; |
7918f24d | 724 | |
af7df257 | 725 | PERL_ARGS_ASSERT_SAVE_HELEM_FLAGS; |
7918f24d | 726 | |
0cbee0a4 | 727 | SvGETMAGIC(*sptr); |
a3444cc5 DM |
728 | { |
729 | dSS_ADD; | |
730 | SS_ADD_PTR(SvREFCNT_inc_simple(hv)); | |
731 | SS_ADD_PTR(newSVsv(key)); | |
732 | SS_ADD_PTR(SvREFCNT_inc(*sptr)); | |
733 | SS_ADD_UV(SAVEt_HELEM); | |
734 | SS_ADD_END(4); | |
735 | } | |
af7df257 | 736 | save_scalar_at(sptr, flags); |
75d34a09 VP |
737 | if (flags & SAVEf_KEEPOLDELEM) |
738 | return; | |
bfc4de9f DM |
739 | sv = *sptr; |
740 | /* If we're localizing a tied hash element, this new sv | |
741 | * won't actually be stored in the hash - so it won't get | |
742 | * reaped when the localize ends. Ensure it gets reaped by | |
743 | * mortifying it instead. DAPM */ | |
5d9574c1 | 744 | if (UNLIKELY(SvTIED_mg((const SV *)hv, PERL_MAGIC_tied))) |
bfc4de9f | 745 | sv_2mortal(sv); |
4e4c362e GS |
746 | } |
747 | ||
2053acbf NC |
748 | SV* |
749 | Perl_save_svref(pTHX_ SV **sptr) | |
750 | { | |
7918f24d NC |
751 | PERL_ARGS_ASSERT_SAVE_SVREF; |
752 | ||
2053acbf | 753 | SvGETMAGIC(*sptr); |
e22024d3 | 754 | save_pushptrptr(sptr, SvREFCNT_inc(*sptr), SAVEt_SVREF); |
af7df257 | 755 | return save_scalar_at(sptr, SAVEf_SETMAGIC); /* XXX - FIXME - see #60360 */ |
2053acbf NC |
756 | } |
757 | ||
2ef9a108 DM |
758 | |
759 | void | |
760 | Perl_savetmps(pTHX) | |
761 | { | |
762 | dSS_ADD; | |
763 | SS_ADD_IV(PL_tmps_floor); | |
764 | PL_tmps_floor = PL_tmps_ix; | |
765 | SS_ADD_UV(SAVEt_TMPSFLOOR); | |
766 | SS_ADD_END(2); | |
767 | } | |
768 | ||
769 | ||
455ece5e | 770 | I32 |
864dbfa3 | 771 | Perl_save_alloc(pTHX_ I32 size, I32 pad) |
455ece5e | 772 | { |
eb578fdb KW |
773 | const I32 start = pad + ((char*)&PL_savestack[PL_savestack_ix] |
774 | - (char*)PL_savestack); | |
1be36ce0 NC |
775 | const UV elems = 1 + ((size + pad - 1) / sizeof(*PL_savestack)); |
776 | const UV elems_shifted = elems << SAVE_TIGHT_SHIFT; | |
455ece5e | 777 | |
5d9574c1 | 778 | if (UNLIKELY((elems_shifted >> SAVE_TIGHT_SHIFT) != elems)) |
93a641ae | 779 | Perl_croak(aTHX_ |
147e3846 | 780 | "panic: save_alloc elems %" UVuf " out of range (%" IVdf "-%" IVdf ")", |
93a641ae | 781 | elems, (IV)size, (IV)pad); |
1be36ce0 NC |
782 | |
783 | SSGROW(elems + 1); | |
455ece5e AD |
784 | |
785 | PL_savestack_ix += elems; | |
1be36ce0 | 786 | SSPUSHUV(SAVEt_ALLOC | elems_shifted); |
455ece5e AD |
787 | return start; |
788 | } | |
789 | ||
03dba561 | 790 | |
8c036433 | 791 | static const U8 arg_counts[] = { |
9a2fefd6 DM |
792 | 0, /* SAVEt_ALLOC */ |
793 | 0, /* SAVEt_CLEARPADRANGE */ | |
794 | 0, /* SAVEt_CLEARSV */ | |
795 | 0, /* SAVEt_REGCONTEXT */ | |
796 | 1, /* SAVEt_TMPSFLOOR */ | |
797 | 1, /* SAVEt_BOOL */ | |
798 | 1, /* SAVEt_COMPILE_WARNINGS */ | |
799 | 1, /* SAVEt_COMPPAD */ | |
800 | 1, /* SAVEt_FREECOPHH */ | |
801 | 1, /* SAVEt_FREEOP */ | |
802 | 1, /* SAVEt_FREEPV */ | |
803 | 1, /* SAVEt_FREESV */ | |
804 | 1, /* SAVEt_I16 */ | |
805 | 1, /* SAVEt_I32_SMALL */ | |
806 | 1, /* SAVEt_I8 */ | |
807 | 1, /* SAVEt_INT_SMALL */ | |
808 | 1, /* SAVEt_MORTALIZESV */ | |
809 | 1, /* SAVEt_NSTAB */ | |
810 | 1, /* SAVEt_OP */ | |
811 | 1, /* SAVEt_PARSER */ | |
812 | 1, /* SAVEt_STACK_POS */ | |
813 | 1, /* SAVEt_READONLY_OFF */ | |
814 | 1, /* SAVEt_FREEPADNAME */ | |
815 | 2, /* SAVEt_AV */ | |
816 | 2, /* SAVEt_DESTRUCTOR */ | |
817 | 2, /* SAVEt_DESTRUCTOR_X */ | |
818 | 2, /* SAVEt_GENERIC_PVREF */ | |
819 | 2, /* SAVEt_GENERIC_SVREF */ | |
820 | 2, /* SAVEt_GP */ | |
821 | 2, /* SAVEt_GVSV */ | |
822 | 2, /* SAVEt_HINTS */ | |
823 | 2, /* SAVEt_HPTR */ | |
824 | 2, /* SAVEt_HV */ | |
825 | 2, /* SAVEt_I32 */ | |
826 | 2, /* SAVEt_INT */ | |
827 | 2, /* SAVEt_ITEM */ | |
828 | 2, /* SAVEt_IV */ | |
829 | 2, /* SAVEt_LONG */ | |
830 | 2, /* SAVEt_PPTR */ | |
831 | 2, /* SAVEt_SAVESWITCHSTACK */ | |
832 | 2, /* SAVEt_SHARED_PVREF */ | |
833 | 2, /* SAVEt_SPTR */ | |
834 | 2, /* SAVEt_STRLEN */ | |
835 | 2, /* SAVEt_SV */ | |
836 | 2, /* SAVEt_SVREF */ | |
837 | 2, /* SAVEt_VPTR */ | |
838 | 2, /* SAVEt_ADELETE */ | |
839 | 2, /* SAVEt_APTR */ | |
840 | 3, /* SAVEt_HELEM */ | |
841 | 3, /* SAVEt_PADSV_AND_MORTALIZE*/ | |
842 | 3, /* SAVEt_SET_SVFLAGS */ | |
843 | 3, /* SAVEt_GVSLOT */ | |
844 | 3, /* SAVEt_AELEM */ | |
845 | 3 /* SAVEt_DELETE */ | |
846 | }; | |
847 | ||
03dba561 | 848 | |
462e5cf6 | 849 | void |
864dbfa3 | 850 | Perl_leave_scope(pTHX_ I32 base) |
79072805 | 851 | { |
302c0c93 | 852 | /* Localise the effects of the TAINT_NOT inside the loop. */ |
284167a5 | 853 | bool was = TAINT_get; |
79072805 | 854 | |
5d9574c1 | 855 | if (UNLIKELY(base < -1)) |
5637ef5b | 856 | Perl_croak(aTHX_ "panic: corrupt saved stack index %ld", (long) base); |
1c98cc53 DM |
857 | DEBUG_l(Perl_deb(aTHX_ "savestack: releasing items %ld -> %ld\n", |
858 | (long)PL_savestack_ix, (long)base)); | |
3280af22 | 859 | while (PL_savestack_ix > base) { |
03dba561 DM |
860 | UV uv; |
861 | U8 type; | |
9a2fefd6 | 862 | ANY *ap; /* arg pointer */ |
c9728782 | 863 | ANY a0, a1, a2; /* up to 3 args */ |
03dba561 | 864 | |
c6ae7647 NC |
865 | TAINT_NOT; |
866 | ||
03dba561 | 867 | { |
9a2fefd6 | 868 | U8 argcount; |
03dba561 | 869 | I32 ix = PL_savestack_ix - 1; |
9a2fefd6 DM |
870 | |
871 | ap = &PL_savestack[ix]; | |
872 | uv = ap->any_uv; | |
03dba561 | 873 | type = (U8)uv & SAVE_MASK; |
9a2fefd6 DM |
874 | argcount = arg_counts[type]; |
875 | PL_savestack_ix = ix - argcount; | |
876 | ap -= argcount; | |
03dba561 DM |
877 | } |
878 | ||
c6bf6a65 | 879 | switch (type) { |
79072805 | 880 | case SAVEt_ITEM: /* normal string */ |
c9728782 DM |
881 | a0 = ap[0]; a1 = ap[1]; |
882 | sv_replace(a0.any_sv, a1.any_sv); | |
883 | if (UNLIKELY(SvSMAGICAL(a0.any_sv))) { | |
b492a59e | 884 | PL_localizing = 2; |
c9728782 | 885 | mg_set(a0.any_sv); |
b492a59e DM |
886 | PL_localizing = 0; |
887 | } | |
79072805 | 888 | break; |
03dba561 DM |
889 | |
890 | /* This would be a mathom, but Perl_save_svref() calls a static | |
891 | function, S_save_scalar_at(), so has to stay in this file. */ | |
892 | case SAVEt_SVREF: /* scalar reference */ | |
c9728782 | 893 | a0 = ap[0]; a1 = ap[1]; |
75ebea3c | 894 | a2.any_svp = a0.any_svp; |
c9728782 | 895 | a0.any_sv = NULL; /* what to refcnt_dec */ |
03dba561 DM |
896 | goto restore_sv; |
897 | ||
8aacddc1 | 898 | case SAVEt_SV: /* scalar reference */ |
c9728782 | 899 | a0 = ap[0]; a1 = ap[1]; |
75ebea3c | 900 | a2.any_svp = &GvSV(a0.any_gv); |
2053acbf | 901 | restore_sv: |
03dba561 | 902 | { |
75ebea3c DM |
903 | /* do *a2.any_svp = a1 and free a0 */ |
904 | SV * const sv = *a2.any_svp; | |
905 | *a2.any_svp = a1.any_sv; | |
2053acbf | 906 | SvREFCNT_dec(sv); |
c9728782 DM |
907 | if (UNLIKELY(SvSMAGICAL(a1.any_sv))) { |
908 | /* mg_set could die, skipping the freeing of a0 and | |
909 | * a1; Ensure that they're always freed in that case */ | |
2baebb98 | 910 | dSS_ADD; |
c9728782 | 911 | SS_ADD_PTR(a1.any_sv); |
2baebb98 | 912 | SS_ADD_UV(SAVEt_FREESV); |
c9728782 | 913 | SS_ADD_PTR(a0.any_sv); |
2baebb98 DM |
914 | SS_ADD_UV(SAVEt_FREESV); |
915 | SS_ADD_END(4); | |
b492a59e | 916 | PL_localizing = 2; |
c9728782 | 917 | mg_set(a1.any_sv); |
b492a59e | 918 | PL_localizing = 0; |
2baebb98 | 919 | break; |
b492a59e | 920 | } |
c9728782 DM |
921 | SvREFCNT_dec_NN(a1.any_sv); |
922 | SvREFCNT_dec(a0.any_sv); | |
2053acbf | 923 | break; |
03dba561 | 924 | } |
c9728782 | 925 | |
8aacddc1 | 926 | case SAVEt_GENERIC_PVREF: /* generic pv */ |
c9728782 DM |
927 | a0 = ap[0]; a1 = ap[1]; |
928 | if (*a1.any_pvp != a0.any_pv) { | |
929 | Safefree(*a1.any_pvp); | |
930 | *a1.any_pvp = a0.any_pv; | |
f4dd75d9 GS |
931 | } |
932 | break; | |
c9728782 | 933 | |
05ec9bb3 | 934 | case SAVEt_SHARED_PVREF: /* shared pv */ |
c9728782 DM |
935 | a0 = ap[0]; a1 = ap[1]; |
936 | if (*a0.any_pvp != a1.any_pv) { | |
5e54c26f | 937 | #ifdef NETWARE |
c9728782 | 938 | PerlMem_free(*a0.any_pvp); |
5e54c26f | 939 | #else |
c9728782 | 940 | PerlMemShared_free(*a0.any_pvp); |
5e54c26f | 941 | #endif |
c9728782 | 942 | *a0.any_pvp = a1.any_pv; |
05ec9bb3 NIS |
943 | } |
944 | break; | |
c9728782 | 945 | |
f83b46a0 | 946 | case SAVEt_GVSV: /* scalar slot in GV */ |
c9728782 | 947 | a0 = ap[0]; a1 = ap[1]; |
75ebea3c | 948 | a0.any_svp = &GvSV(a0.any_gv); |
f83b46a0 | 949 | goto restore_svp; |
c9728782 | 950 | |
8aacddc1 | 951 | case SAVEt_GENERIC_SVREF: /* generic sv */ |
c9728782 | 952 | a0 = ap[0]; a1 = ap[1]; |
f83b46a0 | 953 | restore_svp: |
03dba561 | 954 | { |
75ebea3c DM |
955 | /* do *a0.any_svp = a1 */ |
956 | SV * const sv = *a0.any_svp; | |
957 | *a0.any_svp = a1.any_sv; | |
f4dd75d9 | 958 | SvREFCNT_dec(sv); |
c9728782 | 959 | SvREFCNT_dec(a1.any_sv); |
b9d12d37 | 960 | break; |
03dba561 | 961 | } |
c9728782 | 962 | |
db9306af | 963 | case SAVEt_GVSLOT: /* any slot in GV */ |
03dba561 | 964 | { |
9a2fefd6 | 965 | HV * hv; |
c9728782 DM |
966 | a0 = ap[0]; a1 = ap[1]; a2 = ap[2]; |
967 | hv = GvSTASH(a0.any_gv); | |
db9306af | 968 | if (hv && HvENAME(hv) && ( |
c9728782 | 969 | (a2.any_sv && SvTYPE(a2.any_sv) == SVt_PVCV) |
75ebea3c | 970 | || (*a1.any_svp && SvTYPE(*a1.any_svp) == SVt_PVCV) |
db9306af FC |
971 | )) |
972 | { | |
75ebea3c DM |
973 | if ((char *)a1.any_svp < (char *)GvGP(a0.any_gv) |
974 | || (char *)a1.any_svp > (char *)GvGP(a0.any_gv) + sizeof(struct gp) | |
c9728782 | 975 | || GvREFCNT(a0.any_gv) > 2) /* "> 2" to ignore savestack's ref */ |
db9306af FC |
976 | PL_sub_generation++; |
977 | else mro_method_changed_in(hv); | |
978 | } | |
75ebea3c DM |
979 | a0.any_svp = a1.any_svp; |
980 | a1.any_sv = a2.any_sv; | |
db9306af | 981 | goto restore_svp; |
03dba561 | 982 | } |
c9728782 | 983 | |
8aacddc1 | 984 | case SAVEt_AV: /* array reference */ |
c9728782 DM |
985 | a0 = ap[0]; a1 = ap[1]; |
986 | SvREFCNT_dec(GvAV(a0.any_gv)); | |
987 | GvAV(a0.any_gv) = a1.any_av; | |
2baebb98 | 988 | avhv_common: |
c9728782 DM |
989 | if (UNLIKELY(SvSMAGICAL(a1.any_sv))) { |
990 | /* mg_set might die, so make sure a0 isn't leaked */ | |
2baebb98 | 991 | dSS_ADD; |
c9728782 | 992 | SS_ADD_PTR(a0.any_sv); |
2baebb98 DM |
993 | SS_ADD_UV(SAVEt_FREESV); |
994 | SS_ADD_END(2); | |
b492a59e | 995 | PL_localizing = 2; |
c9728782 | 996 | mg_set(a1.any_sv); |
b492a59e | 997 | PL_localizing = 0; |
2baebb98 | 998 | break; |
b492a59e | 999 | } |
c9728782 | 1000 | SvREFCNT_dec_NN(a0.any_sv); |
8aacddc1 | 1001 | break; |
c9728782 | 1002 | |
8aacddc1 | 1003 | case SAVEt_HV: /* hash reference */ |
c9728782 DM |
1004 | a0 = ap[0]; a1 = ap[1]; |
1005 | SvREFCNT_dec(GvHV(a0.any_gv)); | |
1006 | GvHV(a0.any_gv) = a1.any_hv; | |
2baebb98 DM |
1007 | goto avhv_common; |
1008 | ||
994d373a | 1009 | case SAVEt_INT_SMALL: |
c9728782 DM |
1010 | a0 = ap[0]; |
1011 | *(int*)a0.any_ptr = (int)(uv >> SAVE_TIGHT_SHIFT); | |
994d373a | 1012 | break; |
c9728782 | 1013 | |
79072805 | 1014 | case SAVEt_INT: /* int reference */ |
c9728782 DM |
1015 | a0 = ap[0]; a1 = ap[1]; |
1016 | *(int*)a1.any_ptr = (int)a0.any_i32; | |
79072805 | 1017 | break; |
c9728782 | 1018 | |
e8eb279c | 1019 | case SAVEt_STRLEN: /* STRLEN/size_t ref */ |
c9728782 DM |
1020 | a0 = ap[0]; a1 = ap[1]; |
1021 | *(STRLEN*)a1.any_ptr = (STRLEN)a0.any_iv; | |
e8eb279c | 1022 | break; |
c9728782 | 1023 | |
2ef9a108 | 1024 | case SAVEt_TMPSFLOOR: /* restore PL_tmps_floor */ |
c9728782 DM |
1025 | a0 = ap[0]; |
1026 | PL_tmps_floor = (SSize_t)a0.any_iv; | |
2ef9a108 | 1027 | break; |
c9728782 | 1028 | |
9febdf04 | 1029 | case SAVEt_BOOL: /* bool reference */ |
c9728782 DM |
1030 | a0 = ap[0]; |
1031 | *(bool*)a0.any_ptr = cBOOL(uv >> 8); | |
9a9b5ec9 DM |
1032 | #ifdef NO_TAINT_SUPPORT |
1033 | PERL_UNUSED_VAR(was); | |
1034 | #else | |
c9728782 | 1035 | if (UNLIKELY(a0.any_ptr == &(TAINT_get))) { |
b6f93e7a KW |
1036 | /* If we don't update <was>, to reflect what was saved on the |
1037 | * stack for PL_tainted, then we will overwrite this attempt to | |
1038 | * restore it when we exit this routine. Note that this won't | |
1039 | * work if this value was saved in a wider-than necessary type, | |
1040 | * such as I32 */ | |
c9728782 | 1041 | was = *(bool*)a0.any_ptr; |
b6f93e7a | 1042 | } |
284167a5 | 1043 | #endif |
9febdf04 | 1044 | break; |
c9728782 | 1045 | |
89abef21 | 1046 | case SAVEt_I32_SMALL: |
c9728782 DM |
1047 | a0 = ap[0]; |
1048 | *(I32*)a0.any_ptr = (I32)(uv >> SAVE_TIGHT_SHIFT); | |
89abef21 | 1049 | break; |
c9728782 | 1050 | |
79072805 | 1051 | case SAVEt_I32: /* I32 reference */ |
c9728782 | 1052 | a0 = ap[0]; a1 = ap[1]; |
3235b7a3 | 1053 | #ifdef PERL_DEBUG_READONLY_OPS |
c9728782 | 1054 | if (*(I32*)a1.any_ptr != a0.any_i32) |
3235b7a3 | 1055 | #endif |
c9728782 | 1056 | *(I32*)a1.any_ptr = a0.any_i32; |
79072805 | 1057 | break; |
c9728782 | 1058 | |
79072805 | 1059 | case SAVEt_SPTR: /* SV* reference */ |
146174a9 | 1060 | case SAVEt_VPTR: /* random* reference */ |
85e6fe83 | 1061 | case SAVEt_PPTR: /* char* reference */ |
79072805 | 1062 | case SAVEt_HPTR: /* HV* reference */ |
79072805 | 1063 | case SAVEt_APTR: /* AV* reference */ |
c9728782 | 1064 | a0 = ap[0]; a1 = ap[1]; |
212a001e | 1065 | *a1.any_svp= a0.any_sv; |
79072805 | 1066 | break; |
c9728782 | 1067 | |
fb73857a | 1068 | case SAVEt_GP: /* scalar reference */ |
03dba561 DM |
1069 | { |
1070 | HV *hv; | |
9a2fefd6 DM |
1071 | bool had_method; |
1072 | ||
c9728782 | 1073 | a0 = ap[0]; a1 = ap[1]; |
03dba561 | 1074 | /* possibly taking a method out of circulation */ |
c9728782 DM |
1075 | had_method = !!GvCVu(a0.any_gv); |
1076 | gp_free(a0.any_gv); | |
1077 | GvGP_set(a0.any_gv, (GP*)a1.any_ptr); | |
1078 | if ((hv=GvSTASH(a0.any_gv)) && HvENAME_get(hv)) { | |
1079 | if ( GvNAMELEN(a0.any_gv) == 3 | |
1080 | && strnEQ(GvNAME(a0.any_gv), "ISA", 3) | |
03dba561 DM |
1081 | ) |
1082 | mro_isa_changed_in(hv); | |
c9728782 | 1083 | else if (had_method || GvCVu(a0.any_gv)) |
03dba561 | 1084 | /* putting a method back into circulation ("local")*/ |
c9728782 | 1085 | gv_method_changed(a0.any_gv); |
3d460042 | 1086 | } |
c9728782 | 1087 | SvREFCNT_dec_NN(a0.any_gv); |
8aacddc1 | 1088 | break; |
03dba561 | 1089 | } |
c9728782 | 1090 | |
8990e307 | 1091 | case SAVEt_FREESV: |
c9728782 DM |
1092 | a0 = ap[0]; |
1093 | SvREFCNT_dec(a0.any_sv); | |
8990e307 | 1094 | break; |
c9728782 | 1095 | |
0f94cb1f | 1096 | case SAVEt_FREEPADNAME: |
c9728782 DM |
1097 | a0 = ap[0]; |
1098 | PadnameREFCNT_dec((PADNAME *)a0.any_ptr); | |
0f94cb1f | 1099 | break; |
c9728782 | 1100 | |
3987a177 | 1101 | case SAVEt_FREECOPHH: |
c9728782 DM |
1102 | a0 = ap[0]; |
1103 | cophh_free((COPHH *)a0.any_ptr); | |
3987a177 | 1104 | break; |
c9728782 | 1105 | |
26d9b02f | 1106 | case SAVEt_MORTALIZESV: |
c9728782 DM |
1107 | a0 = ap[0]; |
1108 | sv_2mortal(a0.any_sv); | |
26d9b02f | 1109 | break; |
c9728782 | 1110 | |
8990e307 | 1111 | case SAVEt_FREEOP: |
c9728782 | 1112 | a0 = ap[0]; |
5e5ba94b | 1113 | ASSERT_CURPAD_LEGAL("SAVEt_FREEOP"); |
6ffb8402 | 1114 | op_free(a0.any_op); |
8990e307 | 1115 | break; |
c9728782 | 1116 | |
8990e307 | 1117 | case SAVEt_FREEPV: |
c9728782 DM |
1118 | a0 = ap[0]; |
1119 | Safefree(a0.any_ptr); | |
8990e307 | 1120 | break; |
4e09461c | 1121 | |
4e09461c | 1122 | case SAVEt_CLEARPADRANGE: |
75ebea3c | 1123 | { |
bdb0ae96 FC |
1124 | I32 i; |
1125 | SV **svp; | |
1126 | i = (I32)((uv >> SAVE_TIGHT_SHIFT) & OPpPADRANGE_COUNTMASK); | |
1127 | svp = &PL_curpad[uv >> | |
4e09461c DM |
1128 | (OPpPADRANGE_COUNTSHIFT + SAVE_TIGHT_SHIFT)] + i - 1; |
1129 | goto clearsv; | |
8990e307 | 1130 | case SAVEt_CLEARSV: |
4e09461c DM |
1131 | svp = &PL_curpad[uv >> SAVE_TIGHT_SHIFT]; |
1132 | i = 1; | |
1133 | clearsv: | |
1134 | for (; i; i--, svp--) { | |
9a2fefd6 | 1135 | SV *sv = *svp; |
528ad060 DM |
1136 | |
1137 | DEBUG_Xv(PerlIO_printf(Perl_debug_log, | |
147e3846 | 1138 | "Pad 0x%" UVxf "[0x%" UVxf "] clearsv: %ld sv=0x%" UVxf "<%" IVdf "> %s\n", |
528ad060 DM |
1139 | PTR2UV(PL_comppad), PTR2UV(PL_curpad), |
1140 | (long)(svp-PL_curpad), PTR2UV(sv), (IV)SvREFCNT(sv), | |
1141 | (SvREFCNT(sv) <= 1 && !SvOBJECT(sv)) ? "clear" : "abandon" | |
1142 | )); | |
1143 | ||
1144 | /* Can clear pad variable in place? */ | |
9af15990 | 1145 | if (SvREFCNT(sv) == 1 && !SvOBJECT(sv)) { |
a07f0bef | 1146 | |
a07f0bef DM |
1147 | /* these flags are the union of all the relevant flags |
1148 | * in the individual conditions within */ | |
1149 | if (UNLIKELY(SvFLAGS(sv) & ( | |
a623f893 | 1150 | SVf_READONLY|SVf_PROTECT /*for SvREADONLY_off*/ |
a07f0bef | 1151 | | (SVs_GMG|SVs_SMG|SVs_RMG) /* SvMAGICAL() */ |
7532eaae | 1152 | | SVf_OOK |
a07f0bef DM |
1153 | | SVf_THINKFIRST))) |
1154 | { | |
7500fc82 DM |
1155 | /* if a my variable that was made readonly is |
1156 | * going out of scope, we want to remove the | |
1157 | * readonlyness so that it can go out of scope | |
1158 | * quietly | |
1159 | */ | |
57c404c9 | 1160 | if (SvREADONLY(sv)) |
7500fc82 DM |
1161 | SvREADONLY_off(sv); |
1162 | ||
7532eaae DM |
1163 | if (SvOOK(sv)) { /* OOK or HvAUX */ |
1164 | if (SvTYPE(sv) == SVt_PVHV) | |
1165 | Perl_hv_kill_backrefs(aTHX_ MUTABLE_HV(sv)); | |
1166 | else | |
1167 | sv_backoff(sv); | |
1168 | } | |
1169 | ||
7500fc82 | 1170 | if (SvMAGICAL(sv)) { |
7532eaae DM |
1171 | /* note that backrefs (either in HvAUX or magic) |
1172 | * must be removed before other magic */ | |
7500fc82 DM |
1173 | sv_unmagic(sv, PERL_MAGIC_backref); |
1174 | if (SvTYPE(sv) != SVt_PVCV) | |
1175 | mg_free(sv); | |
1176 | } | |
1177 | if (SvTHINKFIRST(sv)) | |
1178 | sv_force_normal_flags(sv, SV_IMMEDIATE_UNREF | |
1179 | |SV_COW_DROP_PV); | |
528ad060 | 1180 | |
a07f0bef | 1181 | } |
528ad060 DM |
1182 | switch (SvTYPE(sv)) { |
1183 | case SVt_NULL: | |
1184 | break; | |
1185 | case SVt_PVAV: | |
1186 | av_clear(MUTABLE_AV(sv)); | |
1187 | break; | |
1188 | case SVt_PVHV: | |
1189 | hv_clear(MUTABLE_HV(sv)); | |
1190 | break; | |
1191 | case SVt_PVCV: | |
1192 | { | |
db5cc3ee | 1193 | HEK *hek = |
db5cc3ee | 1194 | CvNAMED(sv) |
9c98a81f FC |
1195 | ? CvNAME_HEK((CV *)sv) |
1196 | : GvNAME_HEK(CvGV(sv)); | |
528ad060 | 1197 | assert(hek); |
6110d17a | 1198 | (void)share_hek_hek(hek); |
528ad060 DM |
1199 | cv_undef((CV *)sv); |
1200 | CvNAME_HEK_set(sv, hek); | |
f3feca7a | 1201 | CvLEXICAL_on(sv); |
528ad060 DM |
1202 | break; |
1203 | } | |
1204 | default: | |
c79d0076 NC |
1205 | /* This looks odd, but these two macros are for use in |
1206 | expressions and finish with a trailing comma, so | |
1207 | adding a ; after them would be wrong. */ | |
1208 | assert_not_ROK(sv) | |
1209 | assert_not_glob(sv) | |
5c85b638 | 1210 | SvFLAGS(sv) &=~ (SVf_OK|SVf_IVisUV|SVf_UTF8); |
528ad060 DM |
1211 | break; |
1212 | } | |
82e85a9c | 1213 | SvPADTMP_off(sv); |
528ad060 DM |
1214 | SvPADSTALE_on(sv); /* mark as no longer live */ |
1215 | } | |
1216 | else { /* Someone has a claim on this, so abandon it. */ | |
528ad060 DM |
1217 | switch (SvTYPE(sv)) { /* Console ourselves with a new value */ |
1218 | case SVt_PVAV: *svp = MUTABLE_SV(newAV()); break; | |
1219 | case SVt_PVHV: *svp = MUTABLE_SV(newHV()); break; | |
1220 | case SVt_PVCV: | |
1221 | { | |
9c98a81f FC |
1222 | HEK * const hek = CvNAMED(sv) |
1223 | ? CvNAME_HEK((CV *)sv) | |
1224 | : GvNAME_HEK(CvGV(sv)); | |
1225 | ||
528ad060 DM |
1226 | /* Create a stub */ |
1227 | *svp = newSV_type(SVt_PVCV); | |
1228 | ||
1229 | /* Share name */ | |
528ad060 | 1230 | CvNAME_HEK_set(*svp, |
9c98a81f | 1231 | share_hek_hek(hek)); |
f3feca7a | 1232 | CvLEXICAL_on(*svp); |
528ad060 DM |
1233 | break; |
1234 | } | |
1235 | default: *svp = newSV(0); break; | |
1236 | } | |
4a9a56a7 | 1237 | SvREFCNT_dec_NN(sv); /* Cast current value to the winds. */ |
528ad060 DM |
1238 | /* preserve pad nature, but also mark as not live |
1239 | * for any closure capturing */ | |
145bf8ee | 1240 | SvFLAGS(*svp) |= SVs_PADSTALE; |
528ad060 | 1241 | } |
4e09461c | 1242 | } |
8990e307 | 1243 | break; |
75ebea3c | 1244 | } |
c9728782 | 1245 | |
8990e307 | 1246 | case SAVEt_DELETE: |
c9728782 DM |
1247 | a0 = ap[0]; a1 = ap[1]; a2 = ap[2]; |
1248 | (void)hv_delete(a2.any_hv, a0.any_pv, a1.any_i32, G_DISCARD); | |
1249 | SvREFCNT_dec(a2.any_hv); | |
1250 | Safefree(a0.any_ptr); | |
8990e307 | 1251 | break; |
c9728782 | 1252 | |
c68ec7a9 | 1253 | case SAVEt_ADELETE: |
c9728782 DM |
1254 | a0 = ap[0]; a1 = ap[1]; |
1255 | (void)av_delete(a1.any_av, a0.any_iv, G_DISCARD); | |
1256 | SvREFCNT_dec(a1.any_av); | |
c68ec7a9 | 1257 | break; |
c9728782 | 1258 | |
146174a9 | 1259 | case SAVEt_DESTRUCTOR_X: |
c9728782 DM |
1260 | a0 = ap[0]; a1 = ap[1]; |
1261 | (*a0.any_dxptr)(aTHX_ a1.any_ptr); | |
a0d0e21e | 1262 | break; |
c9728782 | 1263 | |
a0d0e21e | 1264 | case SAVEt_REGCONTEXT: |
e0fa7e2b | 1265 | /* regexp must have croaked */ |
455ece5e | 1266 | case SAVEt_ALLOC: |
1be36ce0 | 1267 | PL_savestack_ix -= uv >> SAVE_TIGHT_SHIFT; |
a0d0e21e | 1268 | break; |
c9728782 | 1269 | |
55497cff | 1270 | case SAVEt_STACK_POS: /* Position on Perl stack */ |
c9728782 DM |
1271 | a0 = ap[0]; |
1272 | PL_stack_sp = PL_stack_base + a0.any_i32; | |
55497cff | 1273 | break; |
c9728782 | 1274 | |
161b7d16 | 1275 | case SAVEt_AELEM: /* array element */ |
75ebea3c DM |
1276 | { |
1277 | SV **svp; | |
c9728782 DM |
1278 | a0 = ap[0]; a1 = ap[1]; a2 = ap[2]; |
1279 | svp = av_fetch(a0.any_av, a1.any_iv, 1); | |
1280 | if (UNLIKELY(!AvREAL(a0.any_av) && AvREIFY(a0.any_av))) /* undo reify guard */ | |
1281 | SvREFCNT_dec(a2.any_sv); | |
5d9574c1 | 1282 | if (LIKELY(svp)) { |
03dba561 | 1283 | SV * const sv = *svp; |
5d9574c1 | 1284 | if (LIKELY(sv && sv != &PL_sv_undef)) { |
c9728782 | 1285 | if (UNLIKELY(SvTIED_mg((const SV *)a0.any_av, PERL_MAGIC_tied))) |
b37c2d43 | 1286 | SvREFCNT_inc_void_NN(sv); |
75ebea3c DM |
1287 | a1.any_sv = a2.any_sv; |
1288 | a2.any_svp = svp; | |
4e4c362e GS |
1289 | goto restore_sv; |
1290 | } | |
1291 | } | |
c9728782 DM |
1292 | SvREFCNT_dec(a0.any_av); |
1293 | SvREFCNT_dec(a2.any_sv); | |
4e4c362e | 1294 | break; |
75ebea3c | 1295 | } |
c9728782 | 1296 | |
161b7d16 | 1297 | case SAVEt_HELEM: /* hash element */ |
03dba561 | 1298 | { |
9a2fefd6 DM |
1299 | HE *he; |
1300 | ||
c9728782 DM |
1301 | a0 = ap[0]; a1 = ap[1]; a2 = ap[2]; |
1302 | he = hv_fetch_ent(a0.any_hv, a1.any_sv, 1, 0); | |
1303 | SvREFCNT_dec(a1.any_sv); | |
5d9574c1 | 1304 | if (LIKELY(he)) { |
03dba561 | 1305 | const SV * const oval = HeVAL(he); |
5d9574c1 | 1306 | if (LIKELY(oval && oval != &PL_sv_undef)) { |
75ebea3c | 1307 | SV **svp = &HeVAL(he); |
c9728782 | 1308 | if (UNLIKELY(SvTIED_mg((const SV *)a0.any_hv, PERL_MAGIC_tied))) |
03dba561 | 1309 | SvREFCNT_inc_void(*svp); |
75ebea3c DM |
1310 | a1.any_sv = a2.any_sv; |
1311 | a2.any_svp = svp; | |
4e4c362e GS |
1312 | goto restore_sv; |
1313 | } | |
1314 | } | |
c9728782 DM |
1315 | SvREFCNT_dec(a0.any_hv); |
1316 | SvREFCNT_dec(a2.any_sv); | |
4e4c362e | 1317 | break; |
03dba561 | 1318 | } |
75ebea3c | 1319 | |
462e5cf6 | 1320 | case SAVEt_OP: |
c9728782 DM |
1321 | a0 = ap[0]; |
1322 | PL_op = (OP*)a0.any_ptr; | |
462e5cf6 | 1323 | break; |
c9728782 | 1324 | |
25eaa213 | 1325 | case SAVEt_HINTS: |
c9728782 | 1326 | a0 = ap[0]; a1 = ap[1]; |
3607ca02 FC |
1327 | if ((PL_hints & HINT_LOCALIZE_HH)) { |
1328 | while (GvHV(PL_hintgv)) { | |
2653c1e3 | 1329 | HV *hv = GvHV(PL_hintgv); |
045ac317 | 1330 | GvHV(PL_hintgv) = NULL; |
2653c1e3 | 1331 | SvREFCNT_dec(MUTABLE_SV(hv)); |
3607ca02 | 1332 | } |
045ac317 | 1333 | } |
20439bc7 | 1334 | cophh_free(CopHINTHASH_get(&PL_compiling)); |
c9728782 DM |
1335 | CopHINTHASH_set(&PL_compiling, (COPHH*)a1.any_ptr); |
1336 | *(I32*)&PL_hints = a0.any_i32; | |
dfa41748 | 1337 | if (PL_hints & HINT_LOCALIZE_HH) { |
ad64d0ec | 1338 | SvREFCNT_dec(MUTABLE_SV(GvHV(PL_hintgv))); |
85fbaab2 | 1339 | GvHV(PL_hintgv) = MUTABLE_HV(SSPOPPTR); |
2653c1e3 DM |
1340 | } |
1341 | if (!GvHV(PL_hintgv)) { | |
a3fb8386 FC |
1342 | /* Need to add a new one manually, else rv2hv can |
1343 | add one via GvHVn and it won't have the magic set. */ | |
5b9c0671 NC |
1344 | HV *const hv = newHV(); |
1345 | hv_magic(hv, NULL, PERL_MAGIC_hints); | |
1346 | GvHV(PL_hintgv) = hv; | |
dfa41748 | 1347 | } |
5b9c0671 | 1348 | assert(GvHV(PL_hintgv)); |
b3ac6de7 | 1349 | break; |
c9728782 | 1350 | |
cb50131a | 1351 | case SAVEt_COMPPAD: |
c9728782 DM |
1352 | a0 = ap[0]; |
1353 | PL_comppad = (PAD*)a0.any_ptr; | |
5d9574c1 | 1354 | if (LIKELY(PL_comppad)) |
cb50131a CB |
1355 | PL_curpad = AvARRAY(PL_comppad); |
1356 | else | |
4608196e | 1357 | PL_curpad = NULL; |
cb50131a | 1358 | break; |
c9728782 | 1359 | |
09edbca0 | 1360 | case SAVEt_PADSV_AND_MORTALIZE: |
c3564e5c | 1361 | { |
09edbca0 | 1362 | SV **svp; |
9a2fefd6 | 1363 | |
c9728782 DM |
1364 | a0 = ap[0]; a1 = ap[1]; a2 = ap[2]; |
1365 | assert (a1.any_ptr); | |
1366 | svp = AvARRAY((PAD*)a1.any_ptr) + (PADOFFSET)a2.any_uv; | |
b405d38b DM |
1367 | /* This mortalizing used to be done by CX_POOPLOOP() via |
1368 | itersave. But as we have all the information here, we | |
1369 | can do it here, save even having to have itersave in | |
1370 | the struct. | |
1371 | */ | |
09edbca0 | 1372 | sv_2mortal(*svp); |
c9728782 | 1373 | *svp = a0.any_sv; |
c3564e5c GS |
1374 | } |
1375 | break; | |
c9728782 | 1376 | |
8b7059b1 DM |
1377 | case SAVEt_SAVESWITCHSTACK: |
1378 | { | |
1379 | dSP; | |
9a2fefd6 | 1380 | |
c9728782 DM |
1381 | a0 = ap[0]; a1 = ap[1]; |
1382 | SWITCHSTACK(a1.any_av, a0.any_av); | |
1383 | PL_curstackinfo->si_stack = a0.any_av; | |
8b7059b1 DM |
1384 | } |
1385 | break; | |
c9728782 | 1386 | |
14f338dc | 1387 | case SAVEt_SET_SVFLAGS: |
c9728782 DM |
1388 | a0 = ap[0]; a1 = ap[1]; a2 = ap[2]; |
1389 | SvFLAGS(a0.any_sv) &= ~(a1.any_u32); | |
1390 | SvFLAGS(a0.any_sv) |= a2.any_u32; | |
14f338dc | 1391 | break; |
95e06916 | 1392 | |
95e06916 NC |
1393 | /* These are only saved in mathoms.c */ |
1394 | case SAVEt_NSTAB: | |
c9728782 DM |
1395 | a0 = ap[0]; |
1396 | (void)sv_clear(a0.any_sv); | |
95e06916 | 1397 | break; |
c9728782 | 1398 | |
2053acbf | 1399 | case SAVEt_LONG: /* long reference */ |
c9728782 DM |
1400 | a0 = ap[0]; a1 = ap[1]; |
1401 | *(long*)a1.any_ptr = a0.any_long; | |
2053acbf | 1402 | break; |
c9728782 | 1403 | |
95e06916 | 1404 | case SAVEt_IV: /* IV reference */ |
c9728782 DM |
1405 | a0 = ap[0]; a1 = ap[1]; |
1406 | *(IV*)a1.any_ptr = a0.any_iv; | |
95e06916 NC |
1407 | break; |
1408 | ||
2053acbf | 1409 | case SAVEt_I16: /* I16 reference */ |
c9728782 DM |
1410 | a0 = ap[0]; |
1411 | *(I16*)a0.any_ptr = (I16)(uv >> 8); | |
2053acbf | 1412 | break; |
c9728782 | 1413 | |
2053acbf | 1414 | case SAVEt_I8: /* I8 reference */ |
c9728782 DM |
1415 | a0 = ap[0]; |
1416 | *(I8*)a0.any_ptr = (I8)(uv >> 8); | |
2053acbf | 1417 | break; |
c9728782 | 1418 | |
2053acbf | 1419 | case SAVEt_DESTRUCTOR: |
c9728782 DM |
1420 | a0 = ap[0]; a1 = ap[1]; |
1421 | (*a0.any_dptr)(a1.any_ptr); | |
2053acbf | 1422 | break; |
c9728782 | 1423 | |
68da3b2f | 1424 | case SAVEt_COMPILE_WARNINGS: |
c9728782 | 1425 | a0 = ap[0]; |
68da3b2f NC |
1426 | if (!specialWARN(PL_compiling.cop_warnings)) |
1427 | PerlMemShared_free(PL_compiling.cop_warnings); | |
c9728782 | 1428 | PL_compiling.cop_warnings = (STRLEN*)a0.any_ptr; |
72dc9ed5 | 1429 | break; |
c9728782 | 1430 | |
7c197c94 | 1431 | case SAVEt_PARSER: |
c9728782 DM |
1432 | a0 = ap[0]; |
1433 | parser_free((yy_parser *)a0.any_ptr); | |
7c197c94 | 1434 | break; |
c9728782 | 1435 | |
20d5dc23 | 1436 | case SAVEt_READONLY_OFF: |
c9728782 DM |
1437 | a0 = ap[0]; |
1438 | SvREADONLY_off(a0.any_sv); | |
20d5dc23 | 1439 | break; |
c9728782 | 1440 | |
79072805 | 1441 | default: |
75ebea3c DM |
1442 | Perl_croak(aTHX_ "panic: leave_scope inconsistency %u", |
1443 | (U8)uv & SAVE_MASK); | |
79072805 LW |
1444 | } |
1445 | } | |
302c0c93 | 1446 | |
284167a5 | 1447 | TAINT_set(was); |
79072805 | 1448 | } |
8990e307 | 1449 | |
8990e307 | 1450 | void |
864dbfa3 | 1451 | Perl_cx_dump(pTHX_ PERL_CONTEXT *cx) |
8990e307 | 1452 | { |
7918f24d NC |
1453 | PERL_ARGS_ASSERT_CX_DUMP; |
1454 | ||
35ff7856 | 1455 | #ifdef DEBUGGING |
22c35a8c | 1456 | PerlIO_printf(Perl_debug_log, "CX %ld = %s\n", (long)(cx - cxstack), PL_block_type[CxTYPE(cx)]); |
6b35e009 | 1457 | if (CxTYPE(cx) != CXt_SUBST) { |
e8d9e9d0 | 1458 | const char *gimme_text; |
760ac839 | 1459 | PerlIO_printf(Perl_debug_log, "BLK_OLDSP = %ld\n", (long)cx->blk_oldsp); |
147e3846 | 1460 | PerlIO_printf(Perl_debug_log, "BLK_OLDCOP = 0x%" UVxf "\n", |
146174a9 | 1461 | PTR2UV(cx->blk_oldcop)); |
760ac839 LW |
1462 | PerlIO_printf(Perl_debug_log, "BLK_OLDMARKSP = %ld\n", (long)cx->blk_oldmarksp); |
1463 | PerlIO_printf(Perl_debug_log, "BLK_OLDSCOPESP = %ld\n", (long)cx->blk_oldscopesp); | |
e992140c | 1464 | PerlIO_printf(Perl_debug_log, "BLK_OLDSAVEIX = %ld\n", (long)cx->blk_oldsaveix); |
147e3846 | 1465 | PerlIO_printf(Perl_debug_log, "BLK_OLDPM = 0x%" UVxf "\n", |
146174a9 | 1466 | PTR2UV(cx->blk_oldpm)); |
e8d9e9d0 VP |
1467 | switch (cx->blk_gimme) { |
1468 | case G_VOID: | |
1469 | gimme_text = "VOID"; | |
1470 | break; | |
1471 | case G_SCALAR: | |
1472 | gimme_text = "SCALAR"; | |
1473 | break; | |
1474 | case G_ARRAY: | |
1475 | gimme_text = "LIST"; | |
1476 | break; | |
1477 | default: | |
1478 | gimme_text = "UNKNOWN"; | |
1479 | break; | |
1480 | } | |
1481 | PerlIO_printf(Perl_debug_log, "BLK_GIMME = %s\n", gimme_text); | |
8990e307 | 1482 | } |
6b35e009 | 1483 | switch (CxTYPE(cx)) { |
8990e307 LW |
1484 | case CXt_NULL: |
1485 | case CXt_BLOCK: | |
1486 | break; | |
146174a9 | 1487 | case CXt_FORMAT: |
147e3846 | 1488 | PerlIO_printf(Perl_debug_log, "BLK_FORMAT.CV = 0x%" UVxf "\n", |
f9c764c5 | 1489 | PTR2UV(cx->blk_format.cv)); |
147e3846 | 1490 | PerlIO_printf(Perl_debug_log, "BLK_FORMAT.GV = 0x%" UVxf "\n", |
f9c764c5 | 1491 | PTR2UV(cx->blk_format.gv)); |
147e3846 | 1492 | PerlIO_printf(Perl_debug_log, "BLK_FORMAT.DFOUTGV = 0x%" UVxf "\n", |
f9c764c5 NC |
1493 | PTR2UV(cx->blk_format.dfoutgv)); |
1494 | PerlIO_printf(Perl_debug_log, "BLK_FORMAT.HASARGS = %d\n", | |
bafb2adc | 1495 | (int)CxHASARGS(cx)); |
147e3846 | 1496 | PerlIO_printf(Perl_debug_log, "BLK_FORMAT.RETOP = 0x%" UVxf "\n", |
f9c764c5 | 1497 | PTR2UV(cx->blk_format.retop)); |
146174a9 | 1498 | break; |
8990e307 | 1499 | case CXt_SUB: |
147e3846 | 1500 | PerlIO_printf(Perl_debug_log, "BLK_SUB.CV = 0x%" UVxf "\n", |
146174a9 | 1501 | PTR2UV(cx->blk_sub.cv)); |
760ac839 | 1502 | PerlIO_printf(Perl_debug_log, "BLK_SUB.OLDDEPTH = %ld\n", |
8990e307 | 1503 | (long)cx->blk_sub.olddepth); |
760ac839 | 1504 | PerlIO_printf(Perl_debug_log, "BLK_SUB.HASARGS = %d\n", |
bafb2adc NC |
1505 | (int)CxHASARGS(cx)); |
1506 | PerlIO_printf(Perl_debug_log, "BLK_SUB.LVAL = %d\n", (int)CxLVAL(cx)); | |
147e3846 | 1507 | PerlIO_printf(Perl_debug_log, "BLK_SUB.RETOP = 0x%" UVxf "\n", |
f39bc417 | 1508 | PTR2UV(cx->blk_sub.retop)); |
8990e307 LW |
1509 | break; |
1510 | case CXt_EVAL: | |
760ac839 | 1511 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_IN_EVAL = %ld\n", |
85a64632 | 1512 | (long)CxOLD_IN_EVAL(cx)); |
760ac839 | 1513 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_OP_TYPE = %s (%s)\n", |
85a64632 NC |
1514 | PL_op_name[CxOLD_OP_TYPE(cx)], |
1515 | PL_op_desc[CxOLD_OP_TYPE(cx)]); | |
0f79a09d GS |
1516 | if (cx->blk_eval.old_namesv) |
1517 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_NAME = %s\n", | |
aa07b2f6 | 1518 | SvPVX_const(cx->blk_eval.old_namesv)); |
147e3846 | 1519 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_EVAL_ROOT = 0x%" UVxf "\n", |
146174a9 | 1520 | PTR2UV(cx->blk_eval.old_eval_root)); |
147e3846 | 1521 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.RETOP = 0x%" UVxf "\n", |
f39bc417 | 1522 | PTR2UV(cx->blk_eval.retop)); |
8990e307 LW |
1523 | break; |
1524 | ||
93661e56 | 1525 | case CXt_LOOP_PLAIN: |
c6fdafd0 | 1526 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1527 | case CXt_LOOP_LAZYSV: |
93661e56 DM |
1528 | case CXt_LOOP_LIST: |
1529 | case CXt_LOOP_ARY: | |
0cbdab38 | 1530 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.LABEL = %s\n", CxLABEL(cx)); |
147e3846 | 1531 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.MY_OP = 0x%" UVxf "\n", |
022eaa24 | 1532 | PTR2UV(cx->blk_loop.my_op)); |
0925dc7f | 1533 | if (CxTYPE(cx) != CXt_LOOP_PLAIN) { |
147e3846 | 1534 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERVAR = 0x%" UVxf "\n", |
0925dc7f | 1535 | PTR2UV(CxITERVAR(cx))); |
147e3846 | 1536 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERSAVE = 0x%" UVxf "\n", |
0925dc7f DM |
1537 | PTR2UV(cx->blk_loop.itersave)); |
1538 | /* XXX: not accurate for LAZYSV/IV/LIST */ | |
147e3846 | 1539 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERARY = 0x%" UVxf "\n", |
0925dc7f DM |
1540 | PTR2UV(cx->blk_loop.state_u.ary.ary)); |
1541 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERIX = %ld\n", | |
1542 | (long)cx->blk_loop.state_u.ary.ix); | |
1543 | } | |
8990e307 LW |
1544 | break; |
1545 | ||
1546 | case CXt_SUBST: | |
760ac839 | 1547 | PerlIO_printf(Perl_debug_log, "SB_ITERS = %ld\n", |
8990e307 | 1548 | (long)cx->sb_iters); |
760ac839 | 1549 | PerlIO_printf(Perl_debug_log, "SB_MAXITERS = %ld\n", |
8990e307 | 1550 | (long)cx->sb_maxiters); |
35ef4773 GS |
1551 | PerlIO_printf(Perl_debug_log, "SB_RFLAGS = %ld\n", |
1552 | (long)cx->sb_rflags); | |
760ac839 | 1553 | PerlIO_printf(Perl_debug_log, "SB_ONCE = %ld\n", |
c5bed6a7 | 1554 | (long)CxONCE(cx)); |
760ac839 | 1555 | PerlIO_printf(Perl_debug_log, "SB_ORIG = %s\n", |
8990e307 | 1556 | cx->sb_orig); |
147e3846 | 1557 | PerlIO_printf(Perl_debug_log, "SB_DSTR = 0x%" UVxf "\n", |
146174a9 | 1558 | PTR2UV(cx->sb_dstr)); |
147e3846 | 1559 | PerlIO_printf(Perl_debug_log, "SB_TARG = 0x%" UVxf "\n", |
146174a9 | 1560 | PTR2UV(cx->sb_targ)); |
147e3846 | 1561 | PerlIO_printf(Perl_debug_log, "SB_S = 0x%" UVxf "\n", |
146174a9 | 1562 | PTR2UV(cx->sb_s)); |
147e3846 | 1563 | PerlIO_printf(Perl_debug_log, "SB_M = 0x%" UVxf "\n", |
146174a9 | 1564 | PTR2UV(cx->sb_m)); |
147e3846 | 1565 | PerlIO_printf(Perl_debug_log, "SB_STREND = 0x%" UVxf "\n", |
146174a9 | 1566 | PTR2UV(cx->sb_strend)); |
147e3846 | 1567 | PerlIO_printf(Perl_debug_log, "SB_RXRES = 0x%" UVxf "\n", |
146174a9 | 1568 | PTR2UV(cx->sb_rxres)); |
8990e307 LW |
1569 | break; |
1570 | } | |
65e66c80 | 1571 | #else |
96a5add6 | 1572 | PERL_UNUSED_CONTEXT; |
65e66c80 | 1573 | PERL_UNUSED_ARG(cx); |
17c3b450 | 1574 | #endif /* DEBUGGING */ |
35ff7856 | 1575 | } |
241d1a3b NC |
1576 | |
1577 | /* | |
14d04a33 | 1578 | * ex: set ts=8 sts=4 sw=4 et: |
37442d52 | 1579 | */ |