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; |
2ce36478 | 93 | cxstack_max = GROW(cxstack_max); |
401a9b14 | 94 | Renew(cxstack, cxstack_max + 1, PERL_CONTEXT); |
9965345d JH |
95 | /* Without any kind of initialising deep enough recursion |
96 | * will end up reading uninitialised PERL_CONTEXTs. */ | |
109bf713 | 97 | PoisonNew(cxstack + old_max + 1, cxstack_max - old_max, PERL_CONTEXT); |
79072805 LW |
98 | return cxstack_ix + 1; |
99 | } | |
100 | ||
79072805 | 101 | void |
864dbfa3 | 102 | Perl_push_scope(pTHX) |
79072805 | 103 | { |
5d9574c1 | 104 | if (UNLIKELY(PL_scopestack_ix == PL_scopestack_max)) { |
3280af22 NIS |
105 | PL_scopestack_max = GROW(PL_scopestack_max); |
106 | Renew(PL_scopestack, PL_scopestack_max, I32); | |
d343c3ef GG |
107 | #ifdef DEBUGGING |
108 | Renew(PL_scopestack_name, PL_scopestack_max, const char*); | |
520bb150 | 109 | #endif |
79072805 | 110 | } |
d343c3ef GG |
111 | #ifdef DEBUGGING |
112 | PL_scopestack_name[PL_scopestack_ix] = "unknown"; | |
113 | #endif | |
3280af22 | 114 | PL_scopestack[PL_scopestack_ix++] = PL_savestack_ix; |
79072805 LW |
115 | |
116 | } | |
117 | ||
118 | void | |
864dbfa3 | 119 | Perl_pop_scope(pTHX) |
79072805 | 120 | { |
35a4481c | 121 | const I32 oldsave = PL_scopestack[--PL_scopestack_ix]; |
8990e307 | 122 | LEAVE_SCOPE(oldsave); |
79072805 LW |
123 | } |
124 | ||
ba5248fc | 125 | I32 * |
864dbfa3 | 126 | Perl_markstack_grow(pTHX) |
a0d0e21e | 127 | { |
35a4481c AL |
128 | const I32 oldmax = PL_markstack_max - PL_markstack; |
129 | const I32 newmax = GROW(oldmax); | |
a0d0e21e | 130 | |
3280af22 | 131 | Renew(PL_markstack, newmax, I32); |
3280af22 | 132 | PL_markstack_max = PL_markstack + newmax; |
ba5248fc | 133 | PL_markstack_ptr = PL_markstack + oldmax; |
30773234 | 134 | DEBUG_s(DEBUG_v(PerlIO_printf(Perl_debug_log, |
147e3846 | 135 | "MARK grow %p %" IVdf " by %" IVdf "\n", |
30773234 | 136 | PL_markstack_ptr, (IV)*PL_markstack_ptr, (IV)oldmax))); |
ba5248fc | 137 | return PL_markstack_ptr; |
a0d0e21e LW |
138 | } |
139 | ||
140 | void | |
864dbfa3 | 141 | Perl_savestack_grow(pTHX) |
79072805 | 142 | { |
49706441 FC |
143 | #ifdef STRESS_REALLOC |
144 | PL_savestack_max += SS_MAXPUSH; | |
145 | #else | |
3caf0269 | 146 | PL_savestack_max = GROW(PL_savestack_max); |
49706441 | 147 | #endif |
3caf0269 DM |
148 | /* Note that we allocate SS_MAXPUSH slots higher than ss_max |
149 | * so that SS_ADD_END(), SSGROW() etc can do a simper check */ | |
150 | Renew(PL_savestack, PL_savestack_max + SS_MAXPUSH, ANY); | |
79072805 LW |
151 | } |
152 | ||
4b3c1a47 AE |
153 | void |
154 | Perl_savestack_grow_cnt(pTHX_ I32 need) | |
155 | { | |
156 | PL_savestack_max = PL_savestack_ix + need; | |
3caf0269 DM |
157 | /* Note that we allocate SS_MAXPUSH slots higher than ss_max |
158 | * so that SS_ADD_END(), SSGROW() etc can do a simper check */ | |
159 | Renew(PL_savestack, PL_savestack_max + SS_MAXPUSH, ANY); | |
4b3c1a47 AE |
160 | } |
161 | ||
2ce36478 SM |
162 | #undef GROW |
163 | ||
a953aca5 DD |
164 | /* The original function was called Perl_tmps_grow and was removed from public |
165 | API, Perl_tmps_grow_p is the replacement and it used in public macros but | |
166 | isn't public itself. | |
167 | ||
168 | Perl_tmps_grow_p takes a proposed ix. A proposed ix is PL_tmps_ix + extend_by, | |
169 | where the result of (PL_tmps_ix + extend_by) is >= PL_tmps_max | |
170 | Upon return, PL_tmps_stack[ix] will be a valid address. For machine code | |
171 | optimization and register usage reasons, the proposed ix passed into | |
172 | tmps_grow is returned to the caller which the caller can then use to write | |
173 | an SV * to PL_tmps_stack[ix]. If the caller was using tmps_grow in | |
174 | pre-extend mode (EXTEND_MORTAL macro), then it ignores the return value of | |
175 | tmps_grow. Note, tmps_grow DOES NOT write ix to PL_tmps_ix, the caller | |
176 | must assign ix or ret val of tmps_grow to PL_temps_ix themselves if that is | |
177 | appropriate. The assignment to PL_temps_ix can happen before or after | |
178 | tmps_grow call since tmps_grow doesn't look at PL_tmps_ix. | |
179 | */ | |
180 | ||
181 | SSize_t | |
182 | Perl_tmps_grow_p(pTHX_ SSize_t ix) | |
677b06e3 | 183 | { |
a953aca5 | 184 | SSize_t extend_to = ix; |
677b06e3 | 185 | #ifndef STRESS_REALLOC |
a953aca5 DD |
186 | if (ix - PL_tmps_max < 128) |
187 | extend_to += (PL_tmps_max < 512) ? 128 : 512; | |
677b06e3 | 188 | #endif |
a953aca5 | 189 | PL_tmps_max = extend_to + 1; |
677b06e3 | 190 | Renew(PL_tmps_stack, PL_tmps_max, SV*); |
a953aca5 | 191 | return ix; |
677b06e3 GS |
192 | } |
193 | ||
194 | ||
195 | void | |
864dbfa3 | 196 | Perl_free_tmps(pTHX) |
79072805 LW |
197 | { |
198 | /* XXX should tmps_floor live in cxstack? */ | |
e8eb279c | 199 | const SSize_t myfloor = PL_tmps_floor; |
3280af22 | 200 | while (PL_tmps_ix > myfloor) { /* clean up after last statement */ |
22ade07d | 201 | SV* const sv = PL_tmps_stack[PL_tmps_ix--]; |
72581b5b VP |
202 | #ifdef PERL_POISON |
203 | PoisonWith(PL_tmps_stack + PL_tmps_ix + 1, 1, SV *, 0xAB); | |
22ade07d | 204 | #endif |
520275ba | 205 | if (LIKELY(sv)) { |
463ee0b2 | 206 | SvTEMP_off(sv); |
4a9a56a7 | 207 | SvREFCNT_dec_NN(sv); /* note, can modify tmps_ix!!! */ |
463ee0b2 | 208 | } |
79072805 LW |
209 | } |
210 | } | |
211 | ||
76e3520e | 212 | STATIC SV * |
af7df257 | 213 | S_save_scalar_at(pTHX_ SV **sptr, const U32 flags) |
79072805 | 214 | { |
75d34a09 | 215 | SV * osv; |
eb578fdb | 216 | SV *sv; |
79072805 | 217 | |
7918f24d NC |
218 | PERL_ARGS_ASSERT_SAVE_SCALAR_AT; |
219 | ||
75d34a09 | 220 | osv = *sptr; |
3c84a230 DM |
221 | if (flags & SAVEf_KEEPOLDELEM) |
222 | sv = osv; | |
223 | else { | |
224 | sv = (*sptr = newSV(0)); | |
225 | if (SvTYPE(osv) >= SVt_PVMG && SvMAGIC(osv)) | |
226 | mg_localize(osv, sv, cBOOL(flags & SAVEf_SETMAGIC)); | |
79072805 | 227 | } |
75d34a09 | 228 | |
79072805 LW |
229 | return sv; |
230 | } | |
231 | ||
dfcd3de5 NC |
232 | void |
233 | Perl_save_pushptrptr(pTHX_ void *const ptr1, void *const ptr2, const int type) | |
e22024d3 | 234 | { |
a3444cc5 DM |
235 | dSS_ADD; |
236 | SS_ADD_PTR(ptr1); | |
237 | SS_ADD_PTR(ptr2); | |
238 | SS_ADD_UV(type); | |
239 | SS_ADD_END(3); | |
e22024d3 NC |
240 | } |
241 | ||
7a4c00b4 | 242 | SV * |
864dbfa3 | 243 | Perl_save_scalar(pTHX_ GV *gv) |
7a4c00b4 | 244 | { |
13c59d41 | 245 | SV ** const sptr = &GvSVn(gv); |
7918f24d NC |
246 | |
247 | PERL_ARGS_ASSERT_SAVE_SCALAR; | |
248 | ||
13c59d41 | 249 | if (UNLIKELY(SvGMAGICAL(*sptr))) { |
b492a59e | 250 | PL_localizing = 1; |
13c59d41 | 251 | (void)mg_get(*sptr); |
b492a59e DM |
252 | PL_localizing = 0; |
253 | } | |
13c59d41 MH |
254 | save_pushptrptr(SvREFCNT_inc_simple(gv), SvREFCNT_inc(*sptr), SAVEt_SV); |
255 | return save_scalar_at(sptr, SAVEf_SETMAGIC); /* XXX - FIXME - see #60360 */ | |
7a4c00b4 | 256 | } |
257 | ||
f4dd75d9 | 258 | /* Like save_sptr(), but also SvREFCNT_dec()s the new value. Can be used to |
b9d12d37 GS |
259 | * restore a global SV to its prior contents, freeing new value. */ |
260 | void | |
864dbfa3 | 261 | Perl_save_generic_svref(pTHX_ SV **sptr) |
b9d12d37 | 262 | { |
7918f24d NC |
263 | PERL_ARGS_ASSERT_SAVE_GENERIC_SVREF; |
264 | ||
e22024d3 | 265 | save_pushptrptr(sptr, SvREFCNT_inc(*sptr), SAVEt_GENERIC_SVREF); |
b9d12d37 GS |
266 | } |
267 | ||
f4dd75d9 GS |
268 | /* Like save_pptr(), but also Safefree()s the new value if it is different |
269 | * from the old one. Can be used to restore a global char* to its prior | |
270 | * contents, freeing new value. */ | |
271 | void | |
272 | Perl_save_generic_pvref(pTHX_ char **str) | |
273 | { | |
7918f24d NC |
274 | PERL_ARGS_ASSERT_SAVE_GENERIC_PVREF; |
275 | ||
e22024d3 | 276 | save_pushptrptr(*str, str, SAVEt_GENERIC_PVREF); |
f4dd75d9 GS |
277 | } |
278 | ||
05ec9bb3 NIS |
279 | /* Like save_generic_pvref(), but uses PerlMemShared_free() rather than Safefree(). |
280 | * Can be used to restore a shared global char* to its prior | |
281 | * contents, freeing new value. */ | |
282 | void | |
283 | Perl_save_shared_pvref(pTHX_ char **str) | |
284 | { | |
7918f24d NC |
285 | PERL_ARGS_ASSERT_SAVE_SHARED_PVREF; |
286 | ||
e22024d3 | 287 | save_pushptrptr(str, *str, SAVEt_SHARED_PVREF); |
05ec9bb3 NIS |
288 | } |
289 | ||
14f338dc DM |
290 | /* set the SvFLAGS specified by mask to the values in val */ |
291 | ||
292 | void | |
293 | Perl_save_set_svflags(pTHX_ SV* sv, U32 mask, U32 val) | |
294 | { | |
a3444cc5 | 295 | dSS_ADD; |
7918f24d NC |
296 | |
297 | PERL_ARGS_ASSERT_SAVE_SET_SVFLAGS; | |
298 | ||
a3444cc5 DM |
299 | SS_ADD_PTR(sv); |
300 | SS_ADD_INT(mask); | |
301 | SS_ADD_INT(val); | |
302 | SS_ADD_UV(SAVEt_SET_SVFLAGS); | |
303 | SS_ADD_END(4); | |
14f338dc DM |
304 | } |
305 | ||
364bbfa4 TC |
306 | /* |
307 | =for apidoc save_gp | |
308 | ||
309 | Saves the current GP of gv on the save stack to be restored on scope exit. | |
310 | ||
311 | If empty is true, replace the GP with a new GP. | |
312 | ||
313 | If empty is false, mark gv with GVf_INTRO so the next reference | |
314 | assigned is localized, which is how C< local *foo = $someref; > works. | |
315 | ||
316 | =cut | |
317 | */ | |
318 | ||
79072805 | 319 | void |
864dbfa3 | 320 | Perl_save_gp(pTHX_ GV *gv, I32 empty) |
79072805 | 321 | { |
7918f24d NC |
322 | PERL_ARGS_ASSERT_SAVE_GP; |
323 | ||
10507e11 | 324 | save_pushptrptr(SvREFCNT_inc(gv), GvGP(gv), SAVEt_GP); |
79072805 | 325 | |
5f05dabc | 326 | if (empty) { |
12816592 | 327 | GP *gp = Perl_newGP(aTHX_ gv); |
959f7ad7 | 328 | HV * const stash = GvSTASH(gv); |
3d460042 FC |
329 | bool isa_changed = 0; |
330 | ||
331 | if (stash && HvENAME(stash)) { | |
332 | if (GvNAMELEN(gv) == 3 && strnEQ(GvNAME(gv), "ISA", 3)) | |
333 | isa_changed = TRUE; | |
334 | else if (GvCVu(gv)) | |
335 | /* taking a method out of circulation ("local")*/ | |
336 | mro_method_changed_in(stash); | |
337 | } | |
146174a9 CB |
338 | if (GvIOp(gv) && (IoFLAGS(GvIOp(gv)) & IOf_ARGV)) { |
339 | gp->gp_io = newIO(); | |
340 | IoFLAGS(gp->gp_io) |= IOf_ARGV|IOf_START; | |
341 | } | |
c43ae56f | 342 | GvGP_set(gv,gp); |
3d460042 | 343 | if (isa_changed) mro_isa_changed_in(stash); |
5f05dabc | 344 | } |
345 | else { | |
44a8e56a | 346 | gp_ref(GvGP(gv)); |
5f05dabc | 347 | GvINTRO_on(gv); |
348 | } | |
79072805 | 349 | } |
79072805 | 350 | |
79072805 | 351 | AV * |
864dbfa3 | 352 | Perl_save_ary(pTHX_ GV *gv) |
79072805 | 353 | { |
901017d6 | 354 | AV * const oav = GvAVn(gv); |
67a38de0 | 355 | AV *av; |
fb73857a | 356 | |
7918f24d NC |
357 | PERL_ARGS_ASSERT_SAVE_ARY; |
358 | ||
5d9574c1 | 359 | if (UNLIKELY(!AvREAL(oav) && AvREIFY(oav))) |
67a38de0 | 360 | av_reify(oav); |
01433346 | 361 | save_pushptrptr(SvREFCNT_inc_simple_NN(gv), oav, SAVEt_AV); |
79072805 | 362 | |
4608196e | 363 | GvAV(gv) = NULL; |
fb73857a | 364 | av = GvAVn(gv); |
5d9574c1 | 365 | if (UNLIKELY(SvMAGIC(oav))) |
9711599e | 366 | mg_localize(MUTABLE_SV(oav), MUTABLE_SV(av), TRUE); |
fb73857a | 367 | return av; |
79072805 LW |
368 | } |
369 | ||
370 | HV * | |
864dbfa3 | 371 | Perl_save_hash(pTHX_ GV *gv) |
79072805 | 372 | { |
fb73857a | 373 | HV *ohv, *hv; |
374 | ||
7918f24d NC |
375 | PERL_ARGS_ASSERT_SAVE_HASH; |
376 | ||
01433346 FC |
377 | save_pushptrptr( |
378 | SvREFCNT_inc_simple_NN(gv), (ohv = GvHVn(gv)), SAVEt_HV | |
379 | ); | |
79072805 | 380 | |
4608196e | 381 | GvHV(gv) = NULL; |
fb73857a | 382 | hv = GvHVn(gv); |
5d9574c1 | 383 | if (UNLIKELY(SvMAGIC(ohv))) |
9711599e | 384 | mg_localize(MUTABLE_SV(ohv), MUTABLE_SV(hv), TRUE); |
fb73857a | 385 | return hv; |
79072805 LW |
386 | } |
387 | ||
388 | void | |
5aaab254 | 389 | Perl_save_item(pTHX_ SV *item) |
79072805 | 390 | { |
eb578fdb | 391 | SV * const sv = newSVsv(item); |
79072805 | 392 | |
7918f24d NC |
393 | PERL_ARGS_ASSERT_SAVE_ITEM; |
394 | ||
e22024d3 NC |
395 | save_pushptrptr(item, /* remember the pointer */ |
396 | sv, /* remember the value */ | |
397 | SAVEt_ITEM); | |
79072805 LW |
398 | } |
399 | ||
400 | void | |
1409bc06 | 401 | Perl_save_bool(pTHX_ bool *boolp) |
79072805 | 402 | { |
a3444cc5 | 403 | dSS_ADD; |
7918f24d | 404 | |
1409bc06 | 405 | PERL_ARGS_ASSERT_SAVE_BOOL; |
7918f24d | 406 | |
a3444cc5 DM |
407 | SS_ADD_PTR(boolp); |
408 | SS_ADD_UV(SAVEt_BOOL | (*boolp << 8)); | |
409 | SS_ADD_END(2); | |
1409bc06 NC |
410 | } |
411 | ||
7623d426 NC |
412 | void |
413 | Perl_save_pushi32ptr(pTHX_ const I32 i, void *const ptr, const int type) | |
1409bc06 | 414 | { |
a3444cc5 DM |
415 | dSS_ADD; |
416 | ||
417 | SS_ADD_INT(i); | |
418 | SS_ADD_PTR(ptr); | |
419 | SS_ADD_UV(type); | |
420 | SS_ADD_END(3); | |
79072805 LW |
421 | } |
422 | ||
423 | void | |
1409bc06 | 424 | Perl_save_int(pTHX_ int *intp) |
9febdf04 | 425 | { |
d172696c | 426 | const int i = *intp; |
9b139d09 | 427 | UV type = ((UV)((UV)i << SAVE_TIGHT_SHIFT) | SAVEt_INT_SMALL); |
d172696c DM |
428 | int size = 2; |
429 | dSS_ADD; | |
7918f24d | 430 | |
1409bc06 | 431 | PERL_ARGS_ASSERT_SAVE_INT; |
7918f24d | 432 | |
5d9574c1 | 433 | if (UNLIKELY((int)(type >> SAVE_TIGHT_SHIFT) != i)) { |
d172696c DM |
434 | SS_ADD_INT(i); |
435 | type = SAVEt_INT; | |
436 | size++; | |
437 | } | |
438 | SS_ADD_PTR(intp); | |
439 | SS_ADD_UV(type); | |
440 | SS_ADD_END(size); | |
9febdf04 RH |
441 | } |
442 | ||
443 | void | |
58188858 RGS |
444 | Perl_save_I8(pTHX_ I8 *bytep) |
445 | { | |
a3444cc5 | 446 | dSS_ADD; |
7918f24d NC |
447 | |
448 | PERL_ARGS_ASSERT_SAVE_I8; | |
449 | ||
a3444cc5 DM |
450 | SS_ADD_PTR(bytep); |
451 | SS_ADD_UV(SAVEt_I8 | ((UV)*bytep << 8)); | |
452 | SS_ADD_END(2); | |
58188858 RGS |
453 | } |
454 | ||
455 | void | |
87a84751 JH |
456 | Perl_save_I16(pTHX_ I16 *intp) |
457 | { | |
a3444cc5 | 458 | dSS_ADD; |
7918f24d NC |
459 | |
460 | PERL_ARGS_ASSERT_SAVE_I16; | |
461 | ||
a3444cc5 DM |
462 | SS_ADD_PTR(intp); |
463 | SS_ADD_UV(SAVEt_I16 | ((UV)*intp << 8)); | |
464 | SS_ADD_END(2); | |
87a84751 JH |
465 | } |
466 | ||
467 | void | |
864dbfa3 | 468 | Perl_save_I32(pTHX_ I32 *intp) |
79072805 | 469 | { |
d172696c | 470 | const I32 i = *intp; |
9b139d09 | 471 | UV type = ((I32)((U32)i << SAVE_TIGHT_SHIFT) | SAVEt_I32_SMALL); |
d172696c DM |
472 | int size = 2; |
473 | dSS_ADD; | |
7918f24d NC |
474 | |
475 | PERL_ARGS_ASSERT_SAVE_I32; | |
476 | ||
5d9574c1 | 477 | if (UNLIKELY((I32)(type >> SAVE_TIGHT_SHIFT) != i)) { |
d172696c DM |
478 | SS_ADD_INT(i); |
479 | type = SAVEt_I32; | |
480 | size++; | |
481 | } | |
482 | SS_ADD_PTR(intp); | |
483 | SS_ADD_UV(type); | |
484 | SS_ADD_END(size); | |
79072805 LW |
485 | } |
486 | ||
e8eb279c FC |
487 | void |
488 | Perl_save_strlen(pTHX_ STRLEN *ptr) | |
489 | { | |
e8eb279c FC |
490 | dSS_ADD; |
491 | ||
492 | PERL_ARGS_ASSERT_SAVE_STRLEN; | |
493 | ||
494 | SS_ADD_IV(*ptr); | |
495 | SS_ADD_PTR(ptr); | |
496 | SS_ADD_UV(SAVEt_STRLEN); | |
497 | SS_ADD_END(3); | |
498 | } | |
499 | ||
f8c11501 FC |
500 | void |
501 | Perl_save_iv(pTHX_ IV *ivp) | |
502 | { | |
503 | PERL_ARGS_ASSERT_SAVE_IV; | |
504 | ||
505 | SSCHECK(3); | |
506 | SSPUSHIV(*ivp); | |
507 | SSPUSHPTR(ivp); | |
508 | SSPUSHUV(SAVEt_IV); | |
509 | } | |
510 | ||
85e6fe83 LW |
511 | /* Cannot use save_sptr() to store a char* since the SV** cast will |
512 | * force word-alignment and we'll miss the pointer. | |
513 | */ | |
514 | void | |
864dbfa3 | 515 | Perl_save_pptr(pTHX_ char **pptr) |
85e6fe83 | 516 | { |
7918f24d NC |
517 | PERL_ARGS_ASSERT_SAVE_PPTR; |
518 | ||
e22024d3 | 519 | save_pushptrptr(*pptr, pptr, SAVEt_PPTR); |
85e6fe83 LW |
520 | } |
521 | ||
79072805 | 522 | void |
146174a9 CB |
523 | Perl_save_vptr(pTHX_ void *ptr) |
524 | { | |
7918f24d NC |
525 | PERL_ARGS_ASSERT_SAVE_VPTR; |
526 | ||
e22024d3 | 527 | save_pushptrptr(*(char**)ptr, ptr, SAVEt_VPTR); |
146174a9 CB |
528 | } |
529 | ||
530 | void | |
864dbfa3 | 531 | Perl_save_sptr(pTHX_ SV **sptr) |
79072805 | 532 | { |
7918f24d NC |
533 | PERL_ARGS_ASSERT_SAVE_SPTR; |
534 | ||
e22024d3 | 535 | save_pushptrptr(*sptr, sptr, SAVEt_SPTR); |
79072805 LW |
536 | } |
537 | ||
c3564e5c | 538 | void |
09edbca0 | 539 | Perl_save_padsv_and_mortalize(pTHX_ PADOFFSET off) |
c3564e5c | 540 | { |
a3444cc5 DM |
541 | dSS_ADD; |
542 | ||
f3548bdc | 543 | ASSERT_CURPAD_ACTIVE("save_padsv"); |
a3444cc5 DM |
544 | SS_ADD_PTR(SvREFCNT_inc_simple_NN(PL_curpad[off])); |
545 | SS_ADD_PTR(PL_comppad); | |
03dba561 | 546 | SS_ADD_UV((UV)off); |
a3444cc5 DM |
547 | SS_ADD_UV(SAVEt_PADSV_AND_MORTALIZE); |
548 | SS_ADD_END(4); | |
c3564e5c GS |
549 | } |
550 | ||
79072805 | 551 | void |
864dbfa3 | 552 | Perl_save_hptr(pTHX_ HV **hptr) |
79072805 | 553 | { |
7918f24d NC |
554 | PERL_ARGS_ASSERT_SAVE_HPTR; |
555 | ||
e22024d3 | 556 | save_pushptrptr(*hptr, hptr, SAVEt_HPTR); |
79072805 LW |
557 | } |
558 | ||
559 | void | |
864dbfa3 | 560 | Perl_save_aptr(pTHX_ AV **aptr) |
79072805 | 561 | { |
7918f24d NC |
562 | PERL_ARGS_ASSERT_SAVE_APTR; |
563 | ||
e22024d3 | 564 | save_pushptrptr(*aptr, aptr, SAVEt_APTR); |
79072805 LW |
565 | } |
566 | ||
567 | void | |
2fd8beea | 568 | Perl_save_pushptr(pTHX_ void *const ptr, const int type) |
8990e307 | 569 | { |
a3444cc5 DM |
570 | dSS_ADD; |
571 | SS_ADD_PTR(ptr); | |
572 | SS_ADD_UV(type); | |
573 | SS_ADD_END(2); | |
8990e307 LW |
574 | } |
575 | ||
576 | void | |
864dbfa3 | 577 | Perl_save_clearsv(pTHX_ SV **svp) |
8990e307 | 578 | { |
cdcdfc56 NC |
579 | const UV offset = svp - PL_curpad; |
580 | const UV offset_shifted = offset << SAVE_TIGHT_SHIFT; | |
7918f24d NC |
581 | |
582 | PERL_ARGS_ASSERT_SAVE_CLEARSV; | |
583 | ||
f3548bdc | 584 | ASSERT_CURPAD_ACTIVE("save_clearsv"); |
623e28c6 | 585 | SvPADSTALE_off(*svp); /* mark lexical as active */ |
5d9574c1 | 586 | if (UNLIKELY((offset_shifted >> SAVE_TIGHT_SHIFT) != offset)) { |
147e3846 | 587 | Perl_croak(aTHX_ "panic: pad offset %" UVuf " out of range (%p-%p)", |
cdcdfc56 | 588 | offset, svp, PL_curpad); |
a3444cc5 | 589 | } |
cdcdfc56 | 590 | |
a3444cc5 DM |
591 | { |
592 | dSS_ADD; | |
593 | SS_ADD_UV(offset_shifted | SAVEt_CLEARSV); | |
594 | SS_ADD_END(1); | |
595 | } | |
8990e307 LW |
596 | } |
597 | ||
598 | void | |
864dbfa3 | 599 | Perl_save_delete(pTHX_ HV *hv, char *key, I32 klen) |
8990e307 | 600 | { |
7918f24d NC |
601 | PERL_ARGS_ASSERT_SAVE_DELETE; |
602 | ||
85a721ca | 603 | save_pushptri32ptr(key, klen, SvREFCNT_inc_simple(hv), SAVEt_DELETE); |
8990e307 LW |
604 | } |
605 | ||
606 | void | |
af097752 VP |
607 | Perl_save_hdelete(pTHX_ HV *hv, SV *keysv) |
608 | { | |
609 | STRLEN len; | |
610 | I32 klen; | |
611 | const char *key; | |
612 | ||
613 | PERL_ARGS_ASSERT_SAVE_HDELETE; | |
614 | ||
615 | key = SvPV_const(keysv, len); | |
616 | klen = SvUTF8(keysv) ? -(I32)len : (I32)len; | |
617 | SvREFCNT_inc_simple_void_NN(hv); | |
618 | save_pushptri32ptr(savepvn(key, len), klen, hv, SAVEt_DELETE); | |
619 | } | |
620 | ||
621 | void | |
c70927a6 | 622 | Perl_save_adelete(pTHX_ AV *av, SSize_t key) |
c68ec7a9 | 623 | { |
c70927a6 | 624 | dSS_ADD; |
c68ec7a9 VP |
625 | |
626 | PERL_ARGS_ASSERT_SAVE_ADELETE; | |
627 | ||
628 | SvREFCNT_inc_void(av); | |
c70927a6 FC |
629 | SS_ADD_UV(key); |
630 | SS_ADD_PTR(av); | |
631 | SS_ADD_IV(SAVEt_ADELETE); | |
632 | SS_ADD_END(3); | |
c68ec7a9 VP |
633 | } |
634 | ||
635 | void | |
12ab1f58 JH |
636 | Perl_save_destructor(pTHX_ DESTRUCTORFUNC_NOCONTEXT_t f, void* p) |
637 | { | |
a3444cc5 | 638 | dSS_ADD; |
7918f24d NC |
639 | PERL_ARGS_ASSERT_SAVE_DESTRUCTOR; |
640 | ||
a3444cc5 DM |
641 | SS_ADD_DPTR(f); |
642 | SS_ADD_PTR(p); | |
643 | SS_ADD_UV(SAVEt_DESTRUCTOR); | |
644 | SS_ADD_END(3); | |
12ab1f58 JH |
645 | } |
646 | ||
647 | void | |
146174a9 CB |
648 | Perl_save_destructor_x(pTHX_ DESTRUCTORFUNC_t f, void* p) |
649 | { | |
a3444cc5 DM |
650 | dSS_ADD; |
651 | ||
652 | SS_ADD_DXPTR(f); | |
653 | SS_ADD_PTR(p); | |
654 | SS_ADD_UV(SAVEt_DESTRUCTOR_X); | |
655 | SS_ADD_END(3); | |
146174a9 CB |
656 | } |
657 | ||
658 | void | |
da8315f8 NC |
659 | Perl_save_hints(pTHX) |
660 | { | |
20439bc7 | 661 | COPHH *save_cophh = cophh_copy(CopHINTHASH_get(&PL_compiling)); |
da8315f8 | 662 | if (PL_hints & HINT_LOCALIZE_HH) { |
52c7aca6 FC |
663 | HV *oldhh = GvHV(PL_hintgv); |
664 | save_pushptri32ptr(oldhh, PL_hints, save_cophh, SAVEt_HINTS); | |
665 | GvHV(PL_hintgv) = NULL; /* in case copying dies */ | |
666 | GvHV(PL_hintgv) = hv_copy_hints_hv(oldhh); | |
be84297e | 667 | } else { |
20439bc7 | 668 | save_pushi32ptr(PL_hints, save_cophh, SAVEt_HINTS); |
da8315f8 | 669 | } |
be84297e NC |
670 | } |
671 | ||
672 | static void | |
673 | S_save_pushptri32ptr(pTHX_ void *const ptr1, const I32 i, void *const ptr2, | |
674 | const int type) | |
675 | { | |
a3444cc5 DM |
676 | dSS_ADD; |
677 | SS_ADD_PTR(ptr1); | |
678 | SS_ADD_INT(i); | |
679 | SS_ADD_PTR(ptr2); | |
680 | SS_ADD_UV(type); | |
681 | SS_ADD_END(4); | |
da8315f8 NC |
682 | } |
683 | ||
684 | void | |
c70927a6 FC |
685 | Perl_save_aelem_flags(pTHX_ AV *av, SSize_t idx, SV **sptr, |
686 | const U32 flags) | |
4e4c362e | 687 | { |
20b7effb | 688 | dSS_ADD; |
bfc4de9f | 689 | SV *sv; |
7918f24d | 690 | |
91d1c79f | 691 | PERL_ARGS_ASSERT_SAVE_AELEM_FLAGS; |
7918f24d | 692 | |
0cbee0a4 | 693 | SvGETMAGIC(*sptr); |
c70927a6 FC |
694 | SS_ADD_PTR(SvREFCNT_inc_simple(av)); |
695 | SS_ADD_IV(idx); | |
696 | SS_ADD_PTR(SvREFCNT_inc(*sptr)); | |
697 | SS_ADD_UV(SAVEt_AELEM); | |
698 | SS_ADD_END(4); | |
1cdc9186 FC |
699 | /* The array needs to hold a reference count on its new element, so it |
700 | must be AvREAL. */ | |
5d9574c1 | 701 | if (UNLIKELY(!AvREAL(av) && AvREIFY(av))) |
1cdc9186 | 702 | av_reify(av); |
91d1c79f | 703 | save_scalar_at(sptr, flags); /* XXX - FIXME - see #60360 */ |
75d34a09 VP |
704 | if (flags & SAVEf_KEEPOLDELEM) |
705 | return; | |
bfc4de9f DM |
706 | sv = *sptr; |
707 | /* If we're localizing a tied array element, this new sv | |
708 | * won't actually be stored in the array - so it won't get | |
709 | * reaped when the localize ends. Ensure it gets reaped by | |
710 | * mortifying it instead. DAPM */ | |
5d9574c1 | 711 | if (UNLIKELY(SvTIED_mg((const SV *)av, PERL_MAGIC_tied))) |
bfc4de9f | 712 | sv_2mortal(sv); |
4e4c362e GS |
713 | } |
714 | ||
715 | void | |
af7df257 | 716 | Perl_save_helem_flags(pTHX_ HV *hv, SV *key, SV **sptr, const U32 flags) |
4e4c362e | 717 | { |
bfc4de9f | 718 | SV *sv; |
7918f24d | 719 | |
af7df257 | 720 | PERL_ARGS_ASSERT_SAVE_HELEM_FLAGS; |
7918f24d | 721 | |
0cbee0a4 | 722 | SvGETMAGIC(*sptr); |
a3444cc5 DM |
723 | { |
724 | dSS_ADD; | |
725 | SS_ADD_PTR(SvREFCNT_inc_simple(hv)); | |
726 | SS_ADD_PTR(newSVsv(key)); | |
727 | SS_ADD_PTR(SvREFCNT_inc(*sptr)); | |
728 | SS_ADD_UV(SAVEt_HELEM); | |
729 | SS_ADD_END(4); | |
730 | } | |
af7df257 | 731 | save_scalar_at(sptr, flags); |
75d34a09 VP |
732 | if (flags & SAVEf_KEEPOLDELEM) |
733 | return; | |
bfc4de9f DM |
734 | sv = *sptr; |
735 | /* If we're localizing a tied hash element, this new sv | |
736 | * won't actually be stored in the hash - so it won't get | |
737 | * reaped when the localize ends. Ensure it gets reaped by | |
738 | * mortifying it instead. DAPM */ | |
5d9574c1 | 739 | if (UNLIKELY(SvTIED_mg((const SV *)hv, PERL_MAGIC_tied))) |
bfc4de9f | 740 | sv_2mortal(sv); |
4e4c362e GS |
741 | } |
742 | ||
2053acbf NC |
743 | SV* |
744 | Perl_save_svref(pTHX_ SV **sptr) | |
745 | { | |
7918f24d NC |
746 | PERL_ARGS_ASSERT_SAVE_SVREF; |
747 | ||
2053acbf | 748 | SvGETMAGIC(*sptr); |
e22024d3 | 749 | save_pushptrptr(sptr, SvREFCNT_inc(*sptr), SAVEt_SVREF); |
af7df257 | 750 | return save_scalar_at(sptr, SAVEf_SETMAGIC); /* XXX - FIXME - see #60360 */ |
2053acbf NC |
751 | } |
752 | ||
2ef9a108 DM |
753 | |
754 | void | |
755 | Perl_savetmps(pTHX) | |
756 | { | |
757 | dSS_ADD; | |
758 | SS_ADD_IV(PL_tmps_floor); | |
759 | PL_tmps_floor = PL_tmps_ix; | |
760 | SS_ADD_UV(SAVEt_TMPSFLOOR); | |
761 | SS_ADD_END(2); | |
762 | } | |
763 | ||
764 | ||
455ece5e | 765 | I32 |
864dbfa3 | 766 | Perl_save_alloc(pTHX_ I32 size, I32 pad) |
455ece5e | 767 | { |
eb578fdb KW |
768 | const I32 start = pad + ((char*)&PL_savestack[PL_savestack_ix] |
769 | - (char*)PL_savestack); | |
1be36ce0 NC |
770 | const UV elems = 1 + ((size + pad - 1) / sizeof(*PL_savestack)); |
771 | const UV elems_shifted = elems << SAVE_TIGHT_SHIFT; | |
455ece5e | 772 | |
5d9574c1 | 773 | if (UNLIKELY((elems_shifted >> SAVE_TIGHT_SHIFT) != elems)) |
93a641ae | 774 | Perl_croak(aTHX_ |
147e3846 | 775 | "panic: save_alloc elems %" UVuf " out of range (%" IVdf "-%" IVdf ")", |
93a641ae | 776 | elems, (IV)size, (IV)pad); |
1be36ce0 NC |
777 | |
778 | SSGROW(elems + 1); | |
455ece5e AD |
779 | |
780 | PL_savestack_ix += elems; | |
1be36ce0 | 781 | SSPUSHUV(SAVEt_ALLOC | elems_shifted); |
455ece5e AD |
782 | return start; |
783 | } | |
784 | ||
03dba561 | 785 | |
9a2fefd6 DM |
786 | static U8 arg_counts[] = { |
787 | 0, /* SAVEt_ALLOC */ | |
788 | 0, /* SAVEt_CLEARPADRANGE */ | |
789 | 0, /* SAVEt_CLEARSV */ | |
790 | 0, /* SAVEt_REGCONTEXT */ | |
791 | 1, /* SAVEt_TMPSFLOOR */ | |
792 | 1, /* SAVEt_BOOL */ | |
793 | 1, /* SAVEt_COMPILE_WARNINGS */ | |
794 | 1, /* SAVEt_COMPPAD */ | |
795 | 1, /* SAVEt_FREECOPHH */ | |
796 | 1, /* SAVEt_FREEOP */ | |
797 | 1, /* SAVEt_FREEPV */ | |
798 | 1, /* SAVEt_FREESV */ | |
799 | 1, /* SAVEt_I16 */ | |
800 | 1, /* SAVEt_I32_SMALL */ | |
801 | 1, /* SAVEt_I8 */ | |
802 | 1, /* SAVEt_INT_SMALL */ | |
803 | 1, /* SAVEt_MORTALIZESV */ | |
804 | 1, /* SAVEt_NSTAB */ | |
805 | 1, /* SAVEt_OP */ | |
806 | 1, /* SAVEt_PARSER */ | |
807 | 1, /* SAVEt_STACK_POS */ | |
808 | 1, /* SAVEt_READONLY_OFF */ | |
809 | 1, /* SAVEt_FREEPADNAME */ | |
810 | 2, /* SAVEt_AV */ | |
811 | 2, /* SAVEt_DESTRUCTOR */ | |
812 | 2, /* SAVEt_DESTRUCTOR_X */ | |
813 | 2, /* SAVEt_GENERIC_PVREF */ | |
814 | 2, /* SAVEt_GENERIC_SVREF */ | |
815 | 2, /* SAVEt_GP */ | |
816 | 2, /* SAVEt_GVSV */ | |
817 | 2, /* SAVEt_HINTS */ | |
818 | 2, /* SAVEt_HPTR */ | |
819 | 2, /* SAVEt_HV */ | |
820 | 2, /* SAVEt_I32 */ | |
821 | 2, /* SAVEt_INT */ | |
822 | 2, /* SAVEt_ITEM */ | |
823 | 2, /* SAVEt_IV */ | |
824 | 2, /* SAVEt_LONG */ | |
825 | 2, /* SAVEt_PPTR */ | |
826 | 2, /* SAVEt_SAVESWITCHSTACK */ | |
827 | 2, /* SAVEt_SHARED_PVREF */ | |
828 | 2, /* SAVEt_SPTR */ | |
829 | 2, /* SAVEt_STRLEN */ | |
830 | 2, /* SAVEt_SV */ | |
831 | 2, /* SAVEt_SVREF */ | |
832 | 2, /* SAVEt_VPTR */ | |
833 | 2, /* SAVEt_ADELETE */ | |
834 | 2, /* SAVEt_APTR */ | |
835 | 3, /* SAVEt_HELEM */ | |
836 | 3, /* SAVEt_PADSV_AND_MORTALIZE*/ | |
837 | 3, /* SAVEt_SET_SVFLAGS */ | |
838 | 3, /* SAVEt_GVSLOT */ | |
839 | 3, /* SAVEt_AELEM */ | |
840 | 3 /* SAVEt_DELETE */ | |
841 | }; | |
842 | ||
03dba561 | 843 | |
462e5cf6 | 844 | void |
864dbfa3 | 845 | Perl_leave_scope(pTHX_ I32 base) |
79072805 | 846 | { |
302c0c93 | 847 | /* Localise the effects of the TAINT_NOT inside the loop. */ |
284167a5 | 848 | bool was = TAINT_get; |
79072805 | 849 | |
5d9574c1 | 850 | if (UNLIKELY(base < -1)) |
5637ef5b | 851 | Perl_croak(aTHX_ "panic: corrupt saved stack index %ld", (long) base); |
1c98cc53 DM |
852 | DEBUG_l(Perl_deb(aTHX_ "savestack: releasing items %ld -> %ld\n", |
853 | (long)PL_savestack_ix, (long)base)); | |
3280af22 | 854 | while (PL_savestack_ix > base) { |
03dba561 DM |
855 | UV uv; |
856 | U8 type; | |
9a2fefd6 | 857 | ANY *ap; /* arg pointer */ |
c9728782 | 858 | ANY a0, a1, a2; /* up to 3 args */ |
03dba561 | 859 | |
c6ae7647 NC |
860 | TAINT_NOT; |
861 | ||
03dba561 | 862 | { |
9a2fefd6 | 863 | U8 argcount; |
03dba561 | 864 | I32 ix = PL_savestack_ix - 1; |
9a2fefd6 DM |
865 | |
866 | ap = &PL_savestack[ix]; | |
867 | uv = ap->any_uv; | |
03dba561 | 868 | type = (U8)uv & SAVE_MASK; |
9a2fefd6 DM |
869 | argcount = arg_counts[type]; |
870 | PL_savestack_ix = ix - argcount; | |
871 | ap -= argcount; | |
03dba561 DM |
872 | } |
873 | ||
c6bf6a65 | 874 | switch (type) { |
79072805 | 875 | case SAVEt_ITEM: /* normal string */ |
c9728782 DM |
876 | a0 = ap[0]; a1 = ap[1]; |
877 | sv_replace(a0.any_sv, a1.any_sv); | |
878 | if (UNLIKELY(SvSMAGICAL(a0.any_sv))) { | |
b492a59e | 879 | PL_localizing = 2; |
c9728782 | 880 | mg_set(a0.any_sv); |
b492a59e DM |
881 | PL_localizing = 0; |
882 | } | |
79072805 | 883 | break; |
03dba561 DM |
884 | |
885 | /* This would be a mathom, but Perl_save_svref() calls a static | |
886 | function, S_save_scalar_at(), so has to stay in this file. */ | |
887 | case SAVEt_SVREF: /* scalar reference */ | |
c9728782 | 888 | a0 = ap[0]; a1 = ap[1]; |
75ebea3c | 889 | a2.any_svp = a0.any_svp; |
c9728782 | 890 | a0.any_sv = NULL; /* what to refcnt_dec */ |
03dba561 DM |
891 | goto restore_sv; |
892 | ||
8aacddc1 | 893 | case SAVEt_SV: /* scalar reference */ |
c9728782 | 894 | a0 = ap[0]; a1 = ap[1]; |
75ebea3c | 895 | a2.any_svp = &GvSV(a0.any_gv); |
2053acbf | 896 | restore_sv: |
03dba561 | 897 | { |
75ebea3c DM |
898 | /* do *a2.any_svp = a1 and free a0 */ |
899 | SV * const sv = *a2.any_svp; | |
900 | *a2.any_svp = a1.any_sv; | |
2053acbf | 901 | SvREFCNT_dec(sv); |
c9728782 DM |
902 | if (UNLIKELY(SvSMAGICAL(a1.any_sv))) { |
903 | /* mg_set could die, skipping the freeing of a0 and | |
904 | * a1; Ensure that they're always freed in that case */ | |
2baebb98 | 905 | dSS_ADD; |
c9728782 | 906 | SS_ADD_PTR(a1.any_sv); |
2baebb98 | 907 | SS_ADD_UV(SAVEt_FREESV); |
c9728782 | 908 | SS_ADD_PTR(a0.any_sv); |
2baebb98 DM |
909 | SS_ADD_UV(SAVEt_FREESV); |
910 | SS_ADD_END(4); | |
b492a59e | 911 | PL_localizing = 2; |
c9728782 | 912 | mg_set(a1.any_sv); |
b492a59e | 913 | PL_localizing = 0; |
2baebb98 | 914 | break; |
b492a59e | 915 | } |
c9728782 DM |
916 | SvREFCNT_dec_NN(a1.any_sv); |
917 | SvREFCNT_dec(a0.any_sv); | |
2053acbf | 918 | break; |
03dba561 | 919 | } |
c9728782 | 920 | |
8aacddc1 | 921 | case SAVEt_GENERIC_PVREF: /* generic pv */ |
c9728782 DM |
922 | a0 = ap[0]; a1 = ap[1]; |
923 | if (*a1.any_pvp != a0.any_pv) { | |
924 | Safefree(*a1.any_pvp); | |
925 | *a1.any_pvp = a0.any_pv; | |
f4dd75d9 GS |
926 | } |
927 | break; | |
c9728782 | 928 | |
05ec9bb3 | 929 | case SAVEt_SHARED_PVREF: /* shared pv */ |
c9728782 DM |
930 | a0 = ap[0]; a1 = ap[1]; |
931 | if (*a0.any_pvp != a1.any_pv) { | |
5e54c26f | 932 | #ifdef NETWARE |
c9728782 | 933 | PerlMem_free(*a0.any_pvp); |
5e54c26f | 934 | #else |
c9728782 | 935 | PerlMemShared_free(*a0.any_pvp); |
5e54c26f | 936 | #endif |
c9728782 | 937 | *a0.any_pvp = a1.any_pv; |
05ec9bb3 NIS |
938 | } |
939 | break; | |
c9728782 | 940 | |
f83b46a0 | 941 | case SAVEt_GVSV: /* scalar slot in GV */ |
c9728782 | 942 | a0 = ap[0]; a1 = ap[1]; |
75ebea3c | 943 | a0.any_svp = &GvSV(a0.any_gv); |
f83b46a0 | 944 | goto restore_svp; |
c9728782 | 945 | |
8aacddc1 | 946 | case SAVEt_GENERIC_SVREF: /* generic sv */ |
c9728782 | 947 | a0 = ap[0]; a1 = ap[1]; |
f83b46a0 | 948 | restore_svp: |
03dba561 | 949 | { |
75ebea3c DM |
950 | /* do *a0.any_svp = a1 */ |
951 | SV * const sv = *a0.any_svp; | |
952 | *a0.any_svp = a1.any_sv; | |
f4dd75d9 | 953 | SvREFCNT_dec(sv); |
c9728782 | 954 | SvREFCNT_dec(a1.any_sv); |
b9d12d37 | 955 | break; |
03dba561 | 956 | } |
c9728782 | 957 | |
db9306af | 958 | case SAVEt_GVSLOT: /* any slot in GV */ |
03dba561 | 959 | { |
9a2fefd6 | 960 | HV * hv; |
c9728782 DM |
961 | a0 = ap[0]; a1 = ap[1]; a2 = ap[2]; |
962 | hv = GvSTASH(a0.any_gv); | |
db9306af | 963 | if (hv && HvENAME(hv) && ( |
c9728782 | 964 | (a2.any_sv && SvTYPE(a2.any_sv) == SVt_PVCV) |
75ebea3c | 965 | || (*a1.any_svp && SvTYPE(*a1.any_svp) == SVt_PVCV) |
db9306af FC |
966 | )) |
967 | { | |
75ebea3c DM |
968 | if ((char *)a1.any_svp < (char *)GvGP(a0.any_gv) |
969 | || (char *)a1.any_svp > (char *)GvGP(a0.any_gv) + sizeof(struct gp) | |
c9728782 | 970 | || GvREFCNT(a0.any_gv) > 2) /* "> 2" to ignore savestack's ref */ |
db9306af FC |
971 | PL_sub_generation++; |
972 | else mro_method_changed_in(hv); | |
973 | } | |
75ebea3c DM |
974 | a0.any_svp = a1.any_svp; |
975 | a1.any_sv = a2.any_sv; | |
db9306af | 976 | goto restore_svp; |
03dba561 | 977 | } |
c9728782 | 978 | |
8aacddc1 | 979 | case SAVEt_AV: /* array reference */ |
c9728782 DM |
980 | a0 = ap[0]; a1 = ap[1]; |
981 | SvREFCNT_dec(GvAV(a0.any_gv)); | |
982 | GvAV(a0.any_gv) = a1.any_av; | |
2baebb98 | 983 | avhv_common: |
c9728782 DM |
984 | if (UNLIKELY(SvSMAGICAL(a1.any_sv))) { |
985 | /* mg_set might die, so make sure a0 isn't leaked */ | |
2baebb98 | 986 | dSS_ADD; |
c9728782 | 987 | SS_ADD_PTR(a0.any_sv); |
2baebb98 DM |
988 | SS_ADD_UV(SAVEt_FREESV); |
989 | SS_ADD_END(2); | |
b492a59e | 990 | PL_localizing = 2; |
c9728782 | 991 | mg_set(a1.any_sv); |
b492a59e | 992 | PL_localizing = 0; |
2baebb98 | 993 | break; |
b492a59e | 994 | } |
c9728782 | 995 | SvREFCNT_dec_NN(a0.any_sv); |
8aacddc1 | 996 | break; |
c9728782 | 997 | |
8aacddc1 | 998 | case SAVEt_HV: /* hash reference */ |
c9728782 DM |
999 | a0 = ap[0]; a1 = ap[1]; |
1000 | SvREFCNT_dec(GvHV(a0.any_gv)); | |
1001 | GvHV(a0.any_gv) = a1.any_hv; | |
2baebb98 DM |
1002 | goto avhv_common; |
1003 | ||
994d373a | 1004 | case SAVEt_INT_SMALL: |
c9728782 DM |
1005 | a0 = ap[0]; |
1006 | *(int*)a0.any_ptr = (int)(uv >> SAVE_TIGHT_SHIFT); | |
994d373a | 1007 | break; |
c9728782 | 1008 | |
79072805 | 1009 | case SAVEt_INT: /* int reference */ |
c9728782 DM |
1010 | a0 = ap[0]; a1 = ap[1]; |
1011 | *(int*)a1.any_ptr = (int)a0.any_i32; | |
79072805 | 1012 | break; |
c9728782 | 1013 | |
e8eb279c | 1014 | case SAVEt_STRLEN: /* STRLEN/size_t ref */ |
c9728782 DM |
1015 | a0 = ap[0]; a1 = ap[1]; |
1016 | *(STRLEN*)a1.any_ptr = (STRLEN)a0.any_iv; | |
e8eb279c | 1017 | break; |
c9728782 | 1018 | |
2ef9a108 | 1019 | case SAVEt_TMPSFLOOR: /* restore PL_tmps_floor */ |
c9728782 DM |
1020 | a0 = ap[0]; |
1021 | PL_tmps_floor = (SSize_t)a0.any_iv; | |
2ef9a108 | 1022 | break; |
c9728782 | 1023 | |
9febdf04 | 1024 | case SAVEt_BOOL: /* bool reference */ |
c9728782 DM |
1025 | a0 = ap[0]; |
1026 | *(bool*)a0.any_ptr = cBOOL(uv >> 8); | |
9a9b5ec9 DM |
1027 | #ifdef NO_TAINT_SUPPORT |
1028 | PERL_UNUSED_VAR(was); | |
1029 | #else | |
c9728782 | 1030 | if (UNLIKELY(a0.any_ptr == &(TAINT_get))) { |
b6f93e7a KW |
1031 | /* If we don't update <was>, to reflect what was saved on the |
1032 | * stack for PL_tainted, then we will overwrite this attempt to | |
1033 | * restore it when we exit this routine. Note that this won't | |
1034 | * work if this value was saved in a wider-than necessary type, | |
1035 | * such as I32 */ | |
c9728782 | 1036 | was = *(bool*)a0.any_ptr; |
b6f93e7a | 1037 | } |
284167a5 | 1038 | #endif |
9febdf04 | 1039 | break; |
c9728782 | 1040 | |
89abef21 | 1041 | case SAVEt_I32_SMALL: |
c9728782 DM |
1042 | a0 = ap[0]; |
1043 | *(I32*)a0.any_ptr = (I32)(uv >> SAVE_TIGHT_SHIFT); | |
89abef21 | 1044 | break; |
c9728782 | 1045 | |
79072805 | 1046 | case SAVEt_I32: /* I32 reference */ |
c9728782 | 1047 | a0 = ap[0]; a1 = ap[1]; |
3235b7a3 | 1048 | #ifdef PERL_DEBUG_READONLY_OPS |
c9728782 | 1049 | if (*(I32*)a1.any_ptr != a0.any_i32) |
3235b7a3 | 1050 | #endif |
c9728782 | 1051 | *(I32*)a1.any_ptr = a0.any_i32; |
79072805 | 1052 | break; |
c9728782 | 1053 | |
79072805 | 1054 | case SAVEt_SPTR: /* SV* reference */ |
146174a9 | 1055 | case SAVEt_VPTR: /* random* reference */ |
85e6fe83 | 1056 | case SAVEt_PPTR: /* char* reference */ |
79072805 | 1057 | case SAVEt_HPTR: /* HV* reference */ |
79072805 | 1058 | case SAVEt_APTR: /* AV* reference */ |
c9728782 | 1059 | a0 = ap[0]; a1 = ap[1]; |
212a001e | 1060 | *a1.any_svp= a0.any_sv; |
79072805 | 1061 | break; |
c9728782 | 1062 | |
fb73857a | 1063 | case SAVEt_GP: /* scalar reference */ |
03dba561 DM |
1064 | { |
1065 | HV *hv; | |
9a2fefd6 DM |
1066 | bool had_method; |
1067 | ||
c9728782 | 1068 | a0 = ap[0]; a1 = ap[1]; |
03dba561 | 1069 | /* possibly taking a method out of circulation */ |
c9728782 DM |
1070 | had_method = !!GvCVu(a0.any_gv); |
1071 | gp_free(a0.any_gv); | |
1072 | GvGP_set(a0.any_gv, (GP*)a1.any_ptr); | |
1073 | if ((hv=GvSTASH(a0.any_gv)) && HvENAME_get(hv)) { | |
1074 | if ( GvNAMELEN(a0.any_gv) == 3 | |
1075 | && strnEQ(GvNAME(a0.any_gv), "ISA", 3) | |
03dba561 DM |
1076 | ) |
1077 | mro_isa_changed_in(hv); | |
c9728782 | 1078 | else if (had_method || GvCVu(a0.any_gv)) |
03dba561 | 1079 | /* putting a method back into circulation ("local")*/ |
c9728782 | 1080 | gv_method_changed(a0.any_gv); |
3d460042 | 1081 | } |
c9728782 | 1082 | SvREFCNT_dec_NN(a0.any_gv); |
8aacddc1 | 1083 | break; |
03dba561 | 1084 | } |
c9728782 | 1085 | |
8990e307 | 1086 | case SAVEt_FREESV: |
c9728782 DM |
1087 | a0 = ap[0]; |
1088 | SvREFCNT_dec(a0.any_sv); | |
8990e307 | 1089 | break; |
c9728782 | 1090 | |
0f94cb1f | 1091 | case SAVEt_FREEPADNAME: |
c9728782 DM |
1092 | a0 = ap[0]; |
1093 | PadnameREFCNT_dec((PADNAME *)a0.any_ptr); | |
0f94cb1f | 1094 | break; |
c9728782 | 1095 | |
3987a177 | 1096 | case SAVEt_FREECOPHH: |
c9728782 DM |
1097 | a0 = ap[0]; |
1098 | cophh_free((COPHH *)a0.any_ptr); | |
3987a177 | 1099 | break; |
c9728782 | 1100 | |
26d9b02f | 1101 | case SAVEt_MORTALIZESV: |
c9728782 DM |
1102 | a0 = ap[0]; |
1103 | sv_2mortal(a0.any_sv); | |
26d9b02f | 1104 | break; |
c9728782 | 1105 | |
8990e307 | 1106 | case SAVEt_FREEOP: |
c9728782 | 1107 | a0 = ap[0]; |
5e5ba94b | 1108 | ASSERT_CURPAD_LEGAL("SAVEt_FREEOP"); |
6ffb8402 | 1109 | op_free(a0.any_op); |
8990e307 | 1110 | break; |
c9728782 | 1111 | |
8990e307 | 1112 | case SAVEt_FREEPV: |
c9728782 DM |
1113 | a0 = ap[0]; |
1114 | Safefree(a0.any_ptr); | |
8990e307 | 1115 | break; |
4e09461c | 1116 | |
4e09461c | 1117 | case SAVEt_CLEARPADRANGE: |
75ebea3c | 1118 | { |
bdb0ae96 FC |
1119 | I32 i; |
1120 | SV **svp; | |
1121 | i = (I32)((uv >> SAVE_TIGHT_SHIFT) & OPpPADRANGE_COUNTMASK); | |
1122 | svp = &PL_curpad[uv >> | |
4e09461c DM |
1123 | (OPpPADRANGE_COUNTSHIFT + SAVE_TIGHT_SHIFT)] + i - 1; |
1124 | goto clearsv; | |
8990e307 | 1125 | case SAVEt_CLEARSV: |
4e09461c DM |
1126 | svp = &PL_curpad[uv >> SAVE_TIGHT_SHIFT]; |
1127 | i = 1; | |
1128 | clearsv: | |
1129 | for (; i; i--, svp--) { | |
9a2fefd6 | 1130 | SV *sv = *svp; |
528ad060 DM |
1131 | |
1132 | DEBUG_Xv(PerlIO_printf(Perl_debug_log, | |
147e3846 | 1133 | "Pad 0x%" UVxf "[0x%" UVxf "] clearsv: %ld sv=0x%" UVxf "<%" IVdf "> %s\n", |
528ad060 DM |
1134 | PTR2UV(PL_comppad), PTR2UV(PL_curpad), |
1135 | (long)(svp-PL_curpad), PTR2UV(sv), (IV)SvREFCNT(sv), | |
1136 | (SvREFCNT(sv) <= 1 && !SvOBJECT(sv)) ? "clear" : "abandon" | |
1137 | )); | |
1138 | ||
1139 | /* Can clear pad variable in place? */ | |
9af15990 | 1140 | if (SvREFCNT(sv) == 1 && !SvOBJECT(sv)) { |
a07f0bef | 1141 | |
a07f0bef DM |
1142 | /* these flags are the union of all the relevant flags |
1143 | * in the individual conditions within */ | |
1144 | if (UNLIKELY(SvFLAGS(sv) & ( | |
a623f893 | 1145 | SVf_READONLY|SVf_PROTECT /*for SvREADONLY_off*/ |
a07f0bef | 1146 | | (SVs_GMG|SVs_SMG|SVs_RMG) /* SvMAGICAL() */ |
7532eaae | 1147 | | SVf_OOK |
a07f0bef DM |
1148 | | SVf_THINKFIRST))) |
1149 | { | |
7500fc82 DM |
1150 | /* if a my variable that was made readonly is |
1151 | * going out of scope, we want to remove the | |
1152 | * readonlyness so that it can go out of scope | |
1153 | * quietly | |
1154 | */ | |
57c404c9 | 1155 | if (SvREADONLY(sv)) |
7500fc82 DM |
1156 | SvREADONLY_off(sv); |
1157 | ||
7532eaae DM |
1158 | if (SvOOK(sv)) { /* OOK or HvAUX */ |
1159 | if (SvTYPE(sv) == SVt_PVHV) | |
1160 | Perl_hv_kill_backrefs(aTHX_ MUTABLE_HV(sv)); | |
1161 | else | |
1162 | sv_backoff(sv); | |
1163 | } | |
1164 | ||
7500fc82 | 1165 | if (SvMAGICAL(sv)) { |
7532eaae DM |
1166 | /* note that backrefs (either in HvAUX or magic) |
1167 | * must be removed before other magic */ | |
7500fc82 DM |
1168 | sv_unmagic(sv, PERL_MAGIC_backref); |
1169 | if (SvTYPE(sv) != SVt_PVCV) | |
1170 | mg_free(sv); | |
1171 | } | |
1172 | if (SvTHINKFIRST(sv)) | |
1173 | sv_force_normal_flags(sv, SV_IMMEDIATE_UNREF | |
1174 | |SV_COW_DROP_PV); | |
528ad060 | 1175 | |
a07f0bef | 1176 | } |
528ad060 DM |
1177 | switch (SvTYPE(sv)) { |
1178 | case SVt_NULL: | |
1179 | break; | |
1180 | case SVt_PVAV: | |
1181 | av_clear(MUTABLE_AV(sv)); | |
1182 | break; | |
1183 | case SVt_PVHV: | |
1184 | hv_clear(MUTABLE_HV(sv)); | |
1185 | break; | |
1186 | case SVt_PVCV: | |
1187 | { | |
db5cc3ee | 1188 | HEK *hek = |
db5cc3ee | 1189 | CvNAMED(sv) |
9c98a81f FC |
1190 | ? CvNAME_HEK((CV *)sv) |
1191 | : GvNAME_HEK(CvGV(sv)); | |
528ad060 | 1192 | assert(hek); |
6110d17a | 1193 | (void)share_hek_hek(hek); |
528ad060 DM |
1194 | cv_undef((CV *)sv); |
1195 | CvNAME_HEK_set(sv, hek); | |
f3feca7a | 1196 | CvLEXICAL_on(sv); |
528ad060 DM |
1197 | break; |
1198 | } | |
1199 | default: | |
c79d0076 NC |
1200 | /* This looks odd, but these two macros are for use in |
1201 | expressions and finish with a trailing comma, so | |
1202 | adding a ; after them would be wrong. */ | |
1203 | assert_not_ROK(sv) | |
1204 | assert_not_glob(sv) | |
5c85b638 | 1205 | SvFLAGS(sv) &=~ (SVf_OK|SVf_IVisUV|SVf_UTF8); |
528ad060 DM |
1206 | break; |
1207 | } | |
82e85a9c | 1208 | SvPADTMP_off(sv); |
528ad060 DM |
1209 | SvPADSTALE_on(sv); /* mark as no longer live */ |
1210 | } | |
1211 | else { /* Someone has a claim on this, so abandon it. */ | |
528ad060 DM |
1212 | switch (SvTYPE(sv)) { /* Console ourselves with a new value */ |
1213 | case SVt_PVAV: *svp = MUTABLE_SV(newAV()); break; | |
1214 | case SVt_PVHV: *svp = MUTABLE_SV(newHV()); break; | |
1215 | case SVt_PVCV: | |
1216 | { | |
9c98a81f FC |
1217 | HEK * const hek = CvNAMED(sv) |
1218 | ? CvNAME_HEK((CV *)sv) | |
1219 | : GvNAME_HEK(CvGV(sv)); | |
1220 | ||
528ad060 DM |
1221 | /* Create a stub */ |
1222 | *svp = newSV_type(SVt_PVCV); | |
1223 | ||
1224 | /* Share name */ | |
528ad060 | 1225 | CvNAME_HEK_set(*svp, |
9c98a81f | 1226 | share_hek_hek(hek)); |
f3feca7a | 1227 | CvLEXICAL_on(*svp); |
528ad060 DM |
1228 | break; |
1229 | } | |
1230 | default: *svp = newSV(0); break; | |
1231 | } | |
4a9a56a7 | 1232 | SvREFCNT_dec_NN(sv); /* Cast current value to the winds. */ |
528ad060 DM |
1233 | /* preserve pad nature, but also mark as not live |
1234 | * for any closure capturing */ | |
145bf8ee | 1235 | SvFLAGS(*svp) |= SVs_PADSTALE; |
528ad060 | 1236 | } |
4e09461c | 1237 | } |
8990e307 | 1238 | break; |
75ebea3c | 1239 | } |
c9728782 | 1240 | |
8990e307 | 1241 | case SAVEt_DELETE: |
c9728782 DM |
1242 | a0 = ap[0]; a1 = ap[1]; a2 = ap[2]; |
1243 | (void)hv_delete(a2.any_hv, a0.any_pv, a1.any_i32, G_DISCARD); | |
1244 | SvREFCNT_dec(a2.any_hv); | |
1245 | Safefree(a0.any_ptr); | |
8990e307 | 1246 | break; |
c9728782 | 1247 | |
c68ec7a9 | 1248 | case SAVEt_ADELETE: |
c9728782 DM |
1249 | a0 = ap[0]; a1 = ap[1]; |
1250 | (void)av_delete(a1.any_av, a0.any_iv, G_DISCARD); | |
1251 | SvREFCNT_dec(a1.any_av); | |
c68ec7a9 | 1252 | break; |
c9728782 | 1253 | |
146174a9 | 1254 | case SAVEt_DESTRUCTOR_X: |
c9728782 DM |
1255 | a0 = ap[0]; a1 = ap[1]; |
1256 | (*a0.any_dxptr)(aTHX_ a1.any_ptr); | |
a0d0e21e | 1257 | break; |
c9728782 | 1258 | |
a0d0e21e | 1259 | case SAVEt_REGCONTEXT: |
e0fa7e2b | 1260 | /* regexp must have croaked */ |
455ece5e | 1261 | case SAVEt_ALLOC: |
1be36ce0 | 1262 | PL_savestack_ix -= uv >> SAVE_TIGHT_SHIFT; |
a0d0e21e | 1263 | break; |
c9728782 | 1264 | |
55497cff | 1265 | case SAVEt_STACK_POS: /* Position on Perl stack */ |
c9728782 DM |
1266 | a0 = ap[0]; |
1267 | PL_stack_sp = PL_stack_base + a0.any_i32; | |
55497cff | 1268 | break; |
c9728782 | 1269 | |
161b7d16 | 1270 | case SAVEt_AELEM: /* array element */ |
75ebea3c DM |
1271 | { |
1272 | SV **svp; | |
c9728782 DM |
1273 | a0 = ap[0]; a1 = ap[1]; a2 = ap[2]; |
1274 | svp = av_fetch(a0.any_av, a1.any_iv, 1); | |
1275 | if (UNLIKELY(!AvREAL(a0.any_av) && AvREIFY(a0.any_av))) /* undo reify guard */ | |
1276 | SvREFCNT_dec(a2.any_sv); | |
5d9574c1 | 1277 | if (LIKELY(svp)) { |
03dba561 | 1278 | SV * const sv = *svp; |
5d9574c1 | 1279 | if (LIKELY(sv && sv != &PL_sv_undef)) { |
c9728782 | 1280 | if (UNLIKELY(SvTIED_mg((const SV *)a0.any_av, PERL_MAGIC_tied))) |
b37c2d43 | 1281 | SvREFCNT_inc_void_NN(sv); |
75ebea3c DM |
1282 | a1.any_sv = a2.any_sv; |
1283 | a2.any_svp = svp; | |
4e4c362e GS |
1284 | goto restore_sv; |
1285 | } | |
1286 | } | |
c9728782 DM |
1287 | SvREFCNT_dec(a0.any_av); |
1288 | SvREFCNT_dec(a2.any_sv); | |
4e4c362e | 1289 | break; |
75ebea3c | 1290 | } |
c9728782 | 1291 | |
161b7d16 | 1292 | case SAVEt_HELEM: /* hash element */ |
03dba561 | 1293 | { |
9a2fefd6 DM |
1294 | HE *he; |
1295 | ||
c9728782 DM |
1296 | a0 = ap[0]; a1 = ap[1]; a2 = ap[2]; |
1297 | he = hv_fetch_ent(a0.any_hv, a1.any_sv, 1, 0); | |
1298 | SvREFCNT_dec(a1.any_sv); | |
5d9574c1 | 1299 | if (LIKELY(he)) { |
03dba561 | 1300 | const SV * const oval = HeVAL(he); |
5d9574c1 | 1301 | if (LIKELY(oval && oval != &PL_sv_undef)) { |
75ebea3c | 1302 | SV **svp = &HeVAL(he); |
c9728782 | 1303 | if (UNLIKELY(SvTIED_mg((const SV *)a0.any_hv, PERL_MAGIC_tied))) |
03dba561 | 1304 | SvREFCNT_inc_void(*svp); |
75ebea3c DM |
1305 | a1.any_sv = a2.any_sv; |
1306 | a2.any_svp = svp; | |
4e4c362e GS |
1307 | goto restore_sv; |
1308 | } | |
1309 | } | |
c9728782 DM |
1310 | SvREFCNT_dec(a0.any_hv); |
1311 | SvREFCNT_dec(a2.any_sv); | |
4e4c362e | 1312 | break; |
03dba561 | 1313 | } |
75ebea3c | 1314 | |
462e5cf6 | 1315 | case SAVEt_OP: |
c9728782 DM |
1316 | a0 = ap[0]; |
1317 | PL_op = (OP*)a0.any_ptr; | |
462e5cf6 | 1318 | break; |
c9728782 | 1319 | |
25eaa213 | 1320 | case SAVEt_HINTS: |
c9728782 | 1321 | a0 = ap[0]; a1 = ap[1]; |
3607ca02 FC |
1322 | if ((PL_hints & HINT_LOCALIZE_HH)) { |
1323 | while (GvHV(PL_hintgv)) { | |
2653c1e3 | 1324 | HV *hv = GvHV(PL_hintgv); |
045ac317 | 1325 | GvHV(PL_hintgv) = NULL; |
2653c1e3 | 1326 | SvREFCNT_dec(MUTABLE_SV(hv)); |
3607ca02 | 1327 | } |
045ac317 | 1328 | } |
20439bc7 | 1329 | cophh_free(CopHINTHASH_get(&PL_compiling)); |
c9728782 DM |
1330 | CopHINTHASH_set(&PL_compiling, (COPHH*)a1.any_ptr); |
1331 | *(I32*)&PL_hints = a0.any_i32; | |
dfa41748 | 1332 | if (PL_hints & HINT_LOCALIZE_HH) { |
ad64d0ec | 1333 | SvREFCNT_dec(MUTABLE_SV(GvHV(PL_hintgv))); |
85fbaab2 | 1334 | GvHV(PL_hintgv) = MUTABLE_HV(SSPOPPTR); |
2653c1e3 DM |
1335 | } |
1336 | if (!GvHV(PL_hintgv)) { | |
a3fb8386 FC |
1337 | /* Need to add a new one manually, else rv2hv can |
1338 | add one via GvHVn and it won't have the magic set. */ | |
5b9c0671 NC |
1339 | HV *const hv = newHV(); |
1340 | hv_magic(hv, NULL, PERL_MAGIC_hints); | |
1341 | GvHV(PL_hintgv) = hv; | |
dfa41748 | 1342 | } |
5b9c0671 | 1343 | assert(GvHV(PL_hintgv)); |
b3ac6de7 | 1344 | break; |
c9728782 | 1345 | |
cb50131a | 1346 | case SAVEt_COMPPAD: |
c9728782 DM |
1347 | a0 = ap[0]; |
1348 | PL_comppad = (PAD*)a0.any_ptr; | |
5d9574c1 | 1349 | if (LIKELY(PL_comppad)) |
cb50131a CB |
1350 | PL_curpad = AvARRAY(PL_comppad); |
1351 | else | |
4608196e | 1352 | PL_curpad = NULL; |
cb50131a | 1353 | break; |
c9728782 | 1354 | |
09edbca0 | 1355 | case SAVEt_PADSV_AND_MORTALIZE: |
c3564e5c | 1356 | { |
09edbca0 | 1357 | SV **svp; |
9a2fefd6 | 1358 | |
c9728782 DM |
1359 | a0 = ap[0]; a1 = ap[1]; a2 = ap[2]; |
1360 | assert (a1.any_ptr); | |
1361 | svp = AvARRAY((PAD*)a1.any_ptr) + (PADOFFSET)a2.any_uv; | |
b405d38b DM |
1362 | /* This mortalizing used to be done by CX_POOPLOOP() via |
1363 | itersave. But as we have all the information here, we | |
1364 | can do it here, save even having to have itersave in | |
1365 | the struct. | |
1366 | */ | |
09edbca0 | 1367 | sv_2mortal(*svp); |
c9728782 | 1368 | *svp = a0.any_sv; |
c3564e5c GS |
1369 | } |
1370 | break; | |
c9728782 | 1371 | |
8b7059b1 DM |
1372 | case SAVEt_SAVESWITCHSTACK: |
1373 | { | |
1374 | dSP; | |
9a2fefd6 | 1375 | |
c9728782 DM |
1376 | a0 = ap[0]; a1 = ap[1]; |
1377 | SWITCHSTACK(a1.any_av, a0.any_av); | |
1378 | PL_curstackinfo->si_stack = a0.any_av; | |
8b7059b1 DM |
1379 | } |
1380 | break; | |
c9728782 | 1381 | |
14f338dc | 1382 | case SAVEt_SET_SVFLAGS: |
c9728782 DM |
1383 | a0 = ap[0]; a1 = ap[1]; a2 = ap[2]; |
1384 | SvFLAGS(a0.any_sv) &= ~(a1.any_u32); | |
1385 | SvFLAGS(a0.any_sv) |= a2.any_u32; | |
14f338dc | 1386 | break; |
95e06916 | 1387 | |
95e06916 NC |
1388 | /* These are only saved in mathoms.c */ |
1389 | case SAVEt_NSTAB: | |
c9728782 DM |
1390 | a0 = ap[0]; |
1391 | (void)sv_clear(a0.any_sv); | |
95e06916 | 1392 | break; |
c9728782 | 1393 | |
2053acbf | 1394 | case SAVEt_LONG: /* long reference */ |
c9728782 DM |
1395 | a0 = ap[0]; a1 = ap[1]; |
1396 | *(long*)a1.any_ptr = a0.any_long; | |
2053acbf | 1397 | break; |
c9728782 | 1398 | |
95e06916 | 1399 | case SAVEt_IV: /* IV reference */ |
c9728782 DM |
1400 | a0 = ap[0]; a1 = ap[1]; |
1401 | *(IV*)a1.any_ptr = a0.any_iv; | |
95e06916 NC |
1402 | break; |
1403 | ||
2053acbf | 1404 | case SAVEt_I16: /* I16 reference */ |
c9728782 DM |
1405 | a0 = ap[0]; |
1406 | *(I16*)a0.any_ptr = (I16)(uv >> 8); | |
2053acbf | 1407 | break; |
c9728782 | 1408 | |
2053acbf | 1409 | case SAVEt_I8: /* I8 reference */ |
c9728782 DM |
1410 | a0 = ap[0]; |
1411 | *(I8*)a0.any_ptr = (I8)(uv >> 8); | |
2053acbf | 1412 | break; |
c9728782 | 1413 | |
2053acbf | 1414 | case SAVEt_DESTRUCTOR: |
c9728782 DM |
1415 | a0 = ap[0]; a1 = ap[1]; |
1416 | (*a0.any_dptr)(a1.any_ptr); | |
2053acbf | 1417 | break; |
c9728782 | 1418 | |
68da3b2f | 1419 | case SAVEt_COMPILE_WARNINGS: |
c9728782 | 1420 | a0 = ap[0]; |
68da3b2f NC |
1421 | if (!specialWARN(PL_compiling.cop_warnings)) |
1422 | PerlMemShared_free(PL_compiling.cop_warnings); | |
c9728782 | 1423 | PL_compiling.cop_warnings = (STRLEN*)a0.any_ptr; |
72dc9ed5 | 1424 | break; |
c9728782 | 1425 | |
7c197c94 | 1426 | case SAVEt_PARSER: |
c9728782 DM |
1427 | a0 = ap[0]; |
1428 | parser_free((yy_parser *)a0.any_ptr); | |
7c197c94 | 1429 | break; |
c9728782 | 1430 | |
20d5dc23 | 1431 | case SAVEt_READONLY_OFF: |
c9728782 DM |
1432 | a0 = ap[0]; |
1433 | SvREADONLY_off(a0.any_sv); | |
20d5dc23 | 1434 | break; |
c9728782 | 1435 | |
79072805 | 1436 | default: |
75ebea3c DM |
1437 | Perl_croak(aTHX_ "panic: leave_scope inconsistency %u", |
1438 | (U8)uv & SAVE_MASK); | |
79072805 LW |
1439 | } |
1440 | } | |
302c0c93 | 1441 | |
284167a5 | 1442 | TAINT_set(was); |
79072805 | 1443 | } |
8990e307 | 1444 | |
8990e307 | 1445 | void |
864dbfa3 | 1446 | Perl_cx_dump(pTHX_ PERL_CONTEXT *cx) |
8990e307 | 1447 | { |
7918f24d NC |
1448 | PERL_ARGS_ASSERT_CX_DUMP; |
1449 | ||
35ff7856 | 1450 | #ifdef DEBUGGING |
22c35a8c | 1451 | PerlIO_printf(Perl_debug_log, "CX %ld = %s\n", (long)(cx - cxstack), PL_block_type[CxTYPE(cx)]); |
6b35e009 | 1452 | if (CxTYPE(cx) != CXt_SUBST) { |
e8d9e9d0 | 1453 | const char *gimme_text; |
760ac839 | 1454 | PerlIO_printf(Perl_debug_log, "BLK_OLDSP = %ld\n", (long)cx->blk_oldsp); |
147e3846 | 1455 | PerlIO_printf(Perl_debug_log, "BLK_OLDCOP = 0x%" UVxf "\n", |
146174a9 | 1456 | PTR2UV(cx->blk_oldcop)); |
760ac839 LW |
1457 | PerlIO_printf(Perl_debug_log, "BLK_OLDMARKSP = %ld\n", (long)cx->blk_oldmarksp); |
1458 | PerlIO_printf(Perl_debug_log, "BLK_OLDSCOPESP = %ld\n", (long)cx->blk_oldscopesp); | |
e992140c | 1459 | PerlIO_printf(Perl_debug_log, "BLK_OLDSAVEIX = %ld\n", (long)cx->blk_oldsaveix); |
147e3846 | 1460 | PerlIO_printf(Perl_debug_log, "BLK_OLDPM = 0x%" UVxf "\n", |
146174a9 | 1461 | PTR2UV(cx->blk_oldpm)); |
e8d9e9d0 VP |
1462 | switch (cx->blk_gimme) { |
1463 | case G_VOID: | |
1464 | gimme_text = "VOID"; | |
1465 | break; | |
1466 | case G_SCALAR: | |
1467 | gimme_text = "SCALAR"; | |
1468 | break; | |
1469 | case G_ARRAY: | |
1470 | gimme_text = "LIST"; | |
1471 | break; | |
1472 | default: | |
1473 | gimme_text = "UNKNOWN"; | |
1474 | break; | |
1475 | } | |
1476 | PerlIO_printf(Perl_debug_log, "BLK_GIMME = %s\n", gimme_text); | |
8990e307 | 1477 | } |
6b35e009 | 1478 | switch (CxTYPE(cx)) { |
8990e307 LW |
1479 | case CXt_NULL: |
1480 | case CXt_BLOCK: | |
1481 | break; | |
146174a9 | 1482 | case CXt_FORMAT: |
147e3846 | 1483 | PerlIO_printf(Perl_debug_log, "BLK_FORMAT.CV = 0x%" UVxf "\n", |
f9c764c5 | 1484 | PTR2UV(cx->blk_format.cv)); |
147e3846 | 1485 | PerlIO_printf(Perl_debug_log, "BLK_FORMAT.GV = 0x%" UVxf "\n", |
f9c764c5 | 1486 | PTR2UV(cx->blk_format.gv)); |
147e3846 | 1487 | PerlIO_printf(Perl_debug_log, "BLK_FORMAT.DFOUTGV = 0x%" UVxf "\n", |
f9c764c5 NC |
1488 | PTR2UV(cx->blk_format.dfoutgv)); |
1489 | PerlIO_printf(Perl_debug_log, "BLK_FORMAT.HASARGS = %d\n", | |
bafb2adc | 1490 | (int)CxHASARGS(cx)); |
147e3846 | 1491 | PerlIO_printf(Perl_debug_log, "BLK_FORMAT.RETOP = 0x%" UVxf "\n", |
f9c764c5 | 1492 | PTR2UV(cx->blk_format.retop)); |
146174a9 | 1493 | break; |
8990e307 | 1494 | case CXt_SUB: |
147e3846 | 1495 | PerlIO_printf(Perl_debug_log, "BLK_SUB.CV = 0x%" UVxf "\n", |
146174a9 | 1496 | PTR2UV(cx->blk_sub.cv)); |
760ac839 | 1497 | PerlIO_printf(Perl_debug_log, "BLK_SUB.OLDDEPTH = %ld\n", |
8990e307 | 1498 | (long)cx->blk_sub.olddepth); |
760ac839 | 1499 | PerlIO_printf(Perl_debug_log, "BLK_SUB.HASARGS = %d\n", |
bafb2adc NC |
1500 | (int)CxHASARGS(cx)); |
1501 | PerlIO_printf(Perl_debug_log, "BLK_SUB.LVAL = %d\n", (int)CxLVAL(cx)); | |
147e3846 | 1502 | PerlIO_printf(Perl_debug_log, "BLK_SUB.RETOP = 0x%" UVxf "\n", |
f39bc417 | 1503 | PTR2UV(cx->blk_sub.retop)); |
8990e307 LW |
1504 | break; |
1505 | case CXt_EVAL: | |
760ac839 | 1506 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_IN_EVAL = %ld\n", |
85a64632 | 1507 | (long)CxOLD_IN_EVAL(cx)); |
760ac839 | 1508 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_OP_TYPE = %s (%s)\n", |
85a64632 NC |
1509 | PL_op_name[CxOLD_OP_TYPE(cx)], |
1510 | PL_op_desc[CxOLD_OP_TYPE(cx)]); | |
0f79a09d GS |
1511 | if (cx->blk_eval.old_namesv) |
1512 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_NAME = %s\n", | |
aa07b2f6 | 1513 | SvPVX_const(cx->blk_eval.old_namesv)); |
147e3846 | 1514 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_EVAL_ROOT = 0x%" UVxf "\n", |
146174a9 | 1515 | PTR2UV(cx->blk_eval.old_eval_root)); |
147e3846 | 1516 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.RETOP = 0x%" UVxf "\n", |
f39bc417 | 1517 | PTR2UV(cx->blk_eval.retop)); |
8990e307 LW |
1518 | break; |
1519 | ||
93661e56 | 1520 | case CXt_LOOP_PLAIN: |
c6fdafd0 | 1521 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1522 | case CXt_LOOP_LAZYSV: |
93661e56 DM |
1523 | case CXt_LOOP_LIST: |
1524 | case CXt_LOOP_ARY: | |
0cbdab38 | 1525 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.LABEL = %s\n", CxLABEL(cx)); |
147e3846 | 1526 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.MY_OP = 0x%" UVxf "\n", |
022eaa24 | 1527 | PTR2UV(cx->blk_loop.my_op)); |
0925dc7f | 1528 | if (CxTYPE(cx) != CXt_LOOP_PLAIN) { |
147e3846 | 1529 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERVAR = 0x%" UVxf "\n", |
0925dc7f | 1530 | PTR2UV(CxITERVAR(cx))); |
147e3846 | 1531 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERSAVE = 0x%" UVxf "\n", |
0925dc7f DM |
1532 | PTR2UV(cx->blk_loop.itersave)); |
1533 | /* XXX: not accurate for LAZYSV/IV/LIST */ | |
147e3846 | 1534 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERARY = 0x%" UVxf "\n", |
0925dc7f DM |
1535 | PTR2UV(cx->blk_loop.state_u.ary.ary)); |
1536 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERIX = %ld\n", | |
1537 | (long)cx->blk_loop.state_u.ary.ix); | |
1538 | } | |
8990e307 LW |
1539 | break; |
1540 | ||
1541 | case CXt_SUBST: | |
760ac839 | 1542 | PerlIO_printf(Perl_debug_log, "SB_ITERS = %ld\n", |
8990e307 | 1543 | (long)cx->sb_iters); |
760ac839 | 1544 | PerlIO_printf(Perl_debug_log, "SB_MAXITERS = %ld\n", |
8990e307 | 1545 | (long)cx->sb_maxiters); |
35ef4773 GS |
1546 | PerlIO_printf(Perl_debug_log, "SB_RFLAGS = %ld\n", |
1547 | (long)cx->sb_rflags); | |
760ac839 | 1548 | PerlIO_printf(Perl_debug_log, "SB_ONCE = %ld\n", |
c5bed6a7 | 1549 | (long)CxONCE(cx)); |
760ac839 | 1550 | PerlIO_printf(Perl_debug_log, "SB_ORIG = %s\n", |
8990e307 | 1551 | cx->sb_orig); |
147e3846 | 1552 | PerlIO_printf(Perl_debug_log, "SB_DSTR = 0x%" UVxf "\n", |
146174a9 | 1553 | PTR2UV(cx->sb_dstr)); |
147e3846 | 1554 | PerlIO_printf(Perl_debug_log, "SB_TARG = 0x%" UVxf "\n", |
146174a9 | 1555 | PTR2UV(cx->sb_targ)); |
147e3846 | 1556 | PerlIO_printf(Perl_debug_log, "SB_S = 0x%" UVxf "\n", |
146174a9 | 1557 | PTR2UV(cx->sb_s)); |
147e3846 | 1558 | PerlIO_printf(Perl_debug_log, "SB_M = 0x%" UVxf "\n", |
146174a9 | 1559 | PTR2UV(cx->sb_m)); |
147e3846 | 1560 | PerlIO_printf(Perl_debug_log, "SB_STREND = 0x%" UVxf "\n", |
146174a9 | 1561 | PTR2UV(cx->sb_strend)); |
147e3846 | 1562 | PerlIO_printf(Perl_debug_log, "SB_RXRES = 0x%" UVxf "\n", |
146174a9 | 1563 | PTR2UV(cx->sb_rxres)); |
8990e307 LW |
1564 | break; |
1565 | } | |
65e66c80 | 1566 | #else |
96a5add6 | 1567 | PERL_UNUSED_CONTEXT; |
65e66c80 | 1568 | PERL_UNUSED_ARG(cx); |
17c3b450 | 1569 | #endif /* DEBUGGING */ |
35ff7856 | 1570 | } |
241d1a3b NC |
1571 | |
1572 | /* | |
14d04a33 | 1573 | * ex: set ts=8 sts=4 sw=4 et: |
37442d52 | 1574 | */ |