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 DM |
38 | Perl_croak(aTHX_ |
39 | "panic: stack_grow() negative count (%"IVdf")", (IV)n); | |
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 DM |
134 | DEBUG_s(DEBUG_v(PerlIO_printf(Perl_debug_log, |
135 | "MARK grow %p %"IVdf" by %"IVdf"\n", | |
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 | { |
3caf0269 DM |
143 | PL_savestack_max = GROW(PL_savestack_max); |
144 | /* Note that we allocate SS_MAXPUSH slots higher than ss_max | |
145 | * so that SS_ADD_END(), SSGROW() etc can do a simper check */ | |
146 | Renew(PL_savestack, PL_savestack_max + SS_MAXPUSH, ANY); | |
79072805 LW |
147 | } |
148 | ||
4b3c1a47 AE |
149 | void |
150 | Perl_savestack_grow_cnt(pTHX_ I32 need) | |
151 | { | |
152 | PL_savestack_max = PL_savestack_ix + need; | |
3caf0269 DM |
153 | /* Note that we allocate SS_MAXPUSH slots higher than ss_max |
154 | * so that SS_ADD_END(), SSGROW() etc can do a simper check */ | |
155 | Renew(PL_savestack, PL_savestack_max + SS_MAXPUSH, ANY); | |
4b3c1a47 AE |
156 | } |
157 | ||
2ce36478 SM |
158 | #undef GROW |
159 | ||
a953aca5 DD |
160 | /* The original function was called Perl_tmps_grow and was removed from public |
161 | API, Perl_tmps_grow_p is the replacement and it used in public macros but | |
162 | isn't public itself. | |
163 | ||
164 | Perl_tmps_grow_p takes a proposed ix. A proposed ix is PL_tmps_ix + extend_by, | |
165 | where the result of (PL_tmps_ix + extend_by) is >= PL_tmps_max | |
166 | Upon return, PL_tmps_stack[ix] will be a valid address. For machine code | |
167 | optimization and register usage reasons, the proposed ix passed into | |
168 | tmps_grow is returned to the caller which the caller can then use to write | |
169 | an SV * to PL_tmps_stack[ix]. If the caller was using tmps_grow in | |
170 | pre-extend mode (EXTEND_MORTAL macro), then it ignores the return value of | |
171 | tmps_grow. Note, tmps_grow DOES NOT write ix to PL_tmps_ix, the caller | |
172 | must assign ix or ret val of tmps_grow to PL_temps_ix themselves if that is | |
173 | appropriate. The assignment to PL_temps_ix can happen before or after | |
174 | tmps_grow call since tmps_grow doesn't look at PL_tmps_ix. | |
175 | */ | |
176 | ||
177 | SSize_t | |
178 | Perl_tmps_grow_p(pTHX_ SSize_t ix) | |
677b06e3 | 179 | { |
a953aca5 | 180 | SSize_t extend_to = ix; |
677b06e3 | 181 | #ifndef STRESS_REALLOC |
a953aca5 DD |
182 | if (ix - PL_tmps_max < 128) |
183 | extend_to += (PL_tmps_max < 512) ? 128 : 512; | |
677b06e3 | 184 | #endif |
a953aca5 | 185 | PL_tmps_max = extend_to + 1; |
677b06e3 | 186 | Renew(PL_tmps_stack, PL_tmps_max, SV*); |
a953aca5 | 187 | return ix; |
677b06e3 GS |
188 | } |
189 | ||
190 | ||
191 | void | |
864dbfa3 | 192 | Perl_free_tmps(pTHX) |
79072805 LW |
193 | { |
194 | /* XXX should tmps_floor live in cxstack? */ | |
e8eb279c | 195 | const SSize_t myfloor = PL_tmps_floor; |
3280af22 | 196 | while (PL_tmps_ix > myfloor) { /* clean up after last statement */ |
22ade07d | 197 | SV* const sv = PL_tmps_stack[PL_tmps_ix--]; |
72581b5b VP |
198 | #ifdef PERL_POISON |
199 | PoisonWith(PL_tmps_stack + PL_tmps_ix + 1, 1, SV *, 0xAB); | |
22ade07d | 200 | #endif |
520275ba | 201 | if (LIKELY(sv)) { |
463ee0b2 | 202 | SvTEMP_off(sv); |
4a9a56a7 | 203 | SvREFCNT_dec_NN(sv); /* note, can modify tmps_ix!!! */ |
463ee0b2 | 204 | } |
79072805 LW |
205 | } |
206 | } | |
207 | ||
76e3520e | 208 | STATIC SV * |
af7df257 | 209 | S_save_scalar_at(pTHX_ SV **sptr, const U32 flags) |
79072805 | 210 | { |
75d34a09 | 211 | SV * osv; |
eb578fdb | 212 | SV *sv; |
79072805 | 213 | |
7918f24d NC |
214 | PERL_ARGS_ASSERT_SAVE_SCALAR_AT; |
215 | ||
75d34a09 | 216 | osv = *sptr; |
3c84a230 DM |
217 | if (flags & SAVEf_KEEPOLDELEM) |
218 | sv = osv; | |
219 | else { | |
220 | sv = (*sptr = newSV(0)); | |
221 | if (SvTYPE(osv) >= SVt_PVMG && SvMAGIC(osv)) | |
222 | mg_localize(osv, sv, cBOOL(flags & SAVEf_SETMAGIC)); | |
79072805 | 223 | } |
75d34a09 | 224 | |
79072805 LW |
225 | return sv; |
226 | } | |
227 | ||
dfcd3de5 NC |
228 | void |
229 | Perl_save_pushptrptr(pTHX_ void *const ptr1, void *const ptr2, const int type) | |
e22024d3 | 230 | { |
a3444cc5 DM |
231 | dSS_ADD; |
232 | SS_ADD_PTR(ptr1); | |
233 | SS_ADD_PTR(ptr2); | |
234 | SS_ADD_UV(type); | |
235 | SS_ADD_END(3); | |
e22024d3 NC |
236 | } |
237 | ||
7a4c00b4 | 238 | SV * |
864dbfa3 | 239 | Perl_save_scalar(pTHX_ GV *gv) |
7a4c00b4 | 240 | { |
13c59d41 | 241 | SV ** const sptr = &GvSVn(gv); |
7918f24d NC |
242 | |
243 | PERL_ARGS_ASSERT_SAVE_SCALAR; | |
244 | ||
13c59d41 | 245 | if (UNLIKELY(SvGMAGICAL(*sptr))) { |
b492a59e | 246 | PL_localizing = 1; |
13c59d41 | 247 | (void)mg_get(*sptr); |
b492a59e DM |
248 | PL_localizing = 0; |
249 | } | |
13c59d41 MH |
250 | save_pushptrptr(SvREFCNT_inc_simple(gv), SvREFCNT_inc(*sptr), SAVEt_SV); |
251 | return save_scalar_at(sptr, SAVEf_SETMAGIC); /* XXX - FIXME - see #60360 */ | |
7a4c00b4 | 252 | } |
253 | ||
f4dd75d9 | 254 | /* Like save_sptr(), but also SvREFCNT_dec()s the new value. Can be used to |
b9d12d37 GS |
255 | * restore a global SV to its prior contents, freeing new value. */ |
256 | void | |
864dbfa3 | 257 | Perl_save_generic_svref(pTHX_ SV **sptr) |
b9d12d37 | 258 | { |
7918f24d NC |
259 | PERL_ARGS_ASSERT_SAVE_GENERIC_SVREF; |
260 | ||
e22024d3 | 261 | save_pushptrptr(sptr, SvREFCNT_inc(*sptr), SAVEt_GENERIC_SVREF); |
b9d12d37 GS |
262 | } |
263 | ||
f4dd75d9 GS |
264 | /* Like save_pptr(), but also Safefree()s the new value if it is different |
265 | * from the old one. Can be used to restore a global char* to its prior | |
266 | * contents, freeing new value. */ | |
267 | void | |
268 | Perl_save_generic_pvref(pTHX_ char **str) | |
269 | { | |
7918f24d NC |
270 | PERL_ARGS_ASSERT_SAVE_GENERIC_PVREF; |
271 | ||
e22024d3 | 272 | save_pushptrptr(*str, str, SAVEt_GENERIC_PVREF); |
f4dd75d9 GS |
273 | } |
274 | ||
05ec9bb3 NIS |
275 | /* Like save_generic_pvref(), but uses PerlMemShared_free() rather than Safefree(). |
276 | * Can be used to restore a shared global char* to its prior | |
277 | * contents, freeing new value. */ | |
278 | void | |
279 | Perl_save_shared_pvref(pTHX_ char **str) | |
280 | { | |
7918f24d NC |
281 | PERL_ARGS_ASSERT_SAVE_SHARED_PVREF; |
282 | ||
e22024d3 | 283 | save_pushptrptr(str, *str, SAVEt_SHARED_PVREF); |
05ec9bb3 NIS |
284 | } |
285 | ||
14f338dc DM |
286 | /* set the SvFLAGS specified by mask to the values in val */ |
287 | ||
288 | void | |
289 | Perl_save_set_svflags(pTHX_ SV* sv, U32 mask, U32 val) | |
290 | { | |
a3444cc5 | 291 | dSS_ADD; |
7918f24d NC |
292 | |
293 | PERL_ARGS_ASSERT_SAVE_SET_SVFLAGS; | |
294 | ||
a3444cc5 DM |
295 | SS_ADD_PTR(sv); |
296 | SS_ADD_INT(mask); | |
297 | SS_ADD_INT(val); | |
298 | SS_ADD_UV(SAVEt_SET_SVFLAGS); | |
299 | SS_ADD_END(4); | |
14f338dc DM |
300 | } |
301 | ||
364bbfa4 TC |
302 | /* |
303 | =for apidoc save_gp | |
304 | ||
305 | Saves the current GP of gv on the save stack to be restored on scope exit. | |
306 | ||
307 | If empty is true, replace the GP with a new GP. | |
308 | ||
309 | If empty is false, mark gv with GVf_INTRO so the next reference | |
310 | assigned is localized, which is how C< local *foo = $someref; > works. | |
311 | ||
312 | =cut | |
313 | */ | |
314 | ||
79072805 | 315 | void |
864dbfa3 | 316 | Perl_save_gp(pTHX_ GV *gv, I32 empty) |
79072805 | 317 | { |
7918f24d NC |
318 | PERL_ARGS_ASSERT_SAVE_GP; |
319 | ||
10507e11 | 320 | save_pushptrptr(SvREFCNT_inc(gv), GvGP(gv), SAVEt_GP); |
79072805 | 321 | |
5f05dabc | 322 | if (empty) { |
12816592 | 323 | GP *gp = Perl_newGP(aTHX_ gv); |
959f7ad7 | 324 | HV * const stash = GvSTASH(gv); |
3d460042 FC |
325 | bool isa_changed = 0; |
326 | ||
327 | if (stash && HvENAME(stash)) { | |
328 | if (GvNAMELEN(gv) == 3 && strnEQ(GvNAME(gv), "ISA", 3)) | |
329 | isa_changed = TRUE; | |
330 | else if (GvCVu(gv)) | |
331 | /* taking a method out of circulation ("local")*/ | |
332 | mro_method_changed_in(stash); | |
333 | } | |
146174a9 CB |
334 | if (GvIOp(gv) && (IoFLAGS(GvIOp(gv)) & IOf_ARGV)) { |
335 | gp->gp_io = newIO(); | |
336 | IoFLAGS(gp->gp_io) |= IOf_ARGV|IOf_START; | |
337 | } | |
c43ae56f | 338 | GvGP_set(gv,gp); |
3d460042 | 339 | if (isa_changed) mro_isa_changed_in(stash); |
5f05dabc | 340 | } |
341 | else { | |
44a8e56a | 342 | gp_ref(GvGP(gv)); |
5f05dabc | 343 | GvINTRO_on(gv); |
344 | } | |
79072805 | 345 | } |
79072805 | 346 | |
79072805 | 347 | AV * |
864dbfa3 | 348 | Perl_save_ary(pTHX_ GV *gv) |
79072805 | 349 | { |
901017d6 | 350 | AV * const oav = GvAVn(gv); |
67a38de0 | 351 | AV *av; |
fb73857a | 352 | |
7918f24d NC |
353 | PERL_ARGS_ASSERT_SAVE_ARY; |
354 | ||
5d9574c1 | 355 | if (UNLIKELY(!AvREAL(oav) && AvREIFY(oav))) |
67a38de0 | 356 | av_reify(oav); |
01433346 | 357 | save_pushptrptr(SvREFCNT_inc_simple_NN(gv), oav, SAVEt_AV); |
79072805 | 358 | |
4608196e | 359 | GvAV(gv) = NULL; |
fb73857a | 360 | av = GvAVn(gv); |
5d9574c1 | 361 | if (UNLIKELY(SvMAGIC(oav))) |
9711599e | 362 | mg_localize(MUTABLE_SV(oav), MUTABLE_SV(av), TRUE); |
fb73857a | 363 | return av; |
79072805 LW |
364 | } |
365 | ||
366 | HV * | |
864dbfa3 | 367 | Perl_save_hash(pTHX_ GV *gv) |
79072805 | 368 | { |
fb73857a | 369 | HV *ohv, *hv; |
370 | ||
7918f24d NC |
371 | PERL_ARGS_ASSERT_SAVE_HASH; |
372 | ||
01433346 FC |
373 | save_pushptrptr( |
374 | SvREFCNT_inc_simple_NN(gv), (ohv = GvHVn(gv)), SAVEt_HV | |
375 | ); | |
79072805 | 376 | |
4608196e | 377 | GvHV(gv) = NULL; |
fb73857a | 378 | hv = GvHVn(gv); |
5d9574c1 | 379 | if (UNLIKELY(SvMAGIC(ohv))) |
9711599e | 380 | mg_localize(MUTABLE_SV(ohv), MUTABLE_SV(hv), TRUE); |
fb73857a | 381 | return hv; |
79072805 LW |
382 | } |
383 | ||
384 | void | |
5aaab254 | 385 | Perl_save_item(pTHX_ SV *item) |
79072805 | 386 | { |
eb578fdb | 387 | SV * const sv = newSVsv(item); |
79072805 | 388 | |
7918f24d NC |
389 | PERL_ARGS_ASSERT_SAVE_ITEM; |
390 | ||
e22024d3 NC |
391 | save_pushptrptr(item, /* remember the pointer */ |
392 | sv, /* remember the value */ | |
393 | SAVEt_ITEM); | |
79072805 LW |
394 | } |
395 | ||
396 | void | |
1409bc06 | 397 | Perl_save_bool(pTHX_ bool *boolp) |
79072805 | 398 | { |
a3444cc5 | 399 | dSS_ADD; |
7918f24d | 400 | |
1409bc06 | 401 | PERL_ARGS_ASSERT_SAVE_BOOL; |
7918f24d | 402 | |
a3444cc5 DM |
403 | SS_ADD_PTR(boolp); |
404 | SS_ADD_UV(SAVEt_BOOL | (*boolp << 8)); | |
405 | SS_ADD_END(2); | |
1409bc06 NC |
406 | } |
407 | ||
7623d426 NC |
408 | void |
409 | Perl_save_pushi32ptr(pTHX_ const I32 i, void *const ptr, const int type) | |
1409bc06 | 410 | { |
a3444cc5 DM |
411 | dSS_ADD; |
412 | ||
413 | SS_ADD_INT(i); | |
414 | SS_ADD_PTR(ptr); | |
415 | SS_ADD_UV(type); | |
416 | SS_ADD_END(3); | |
79072805 LW |
417 | } |
418 | ||
419 | void | |
1409bc06 | 420 | Perl_save_int(pTHX_ int *intp) |
9febdf04 | 421 | { |
d172696c | 422 | const int i = *intp; |
9b139d09 | 423 | UV type = ((UV)((UV)i << SAVE_TIGHT_SHIFT) | SAVEt_INT_SMALL); |
d172696c DM |
424 | int size = 2; |
425 | dSS_ADD; | |
7918f24d | 426 | |
1409bc06 | 427 | PERL_ARGS_ASSERT_SAVE_INT; |
7918f24d | 428 | |
5d9574c1 | 429 | if (UNLIKELY((int)(type >> SAVE_TIGHT_SHIFT) != i)) { |
d172696c DM |
430 | SS_ADD_INT(i); |
431 | type = SAVEt_INT; | |
432 | size++; | |
433 | } | |
434 | SS_ADD_PTR(intp); | |
435 | SS_ADD_UV(type); | |
436 | SS_ADD_END(size); | |
9febdf04 RH |
437 | } |
438 | ||
439 | void | |
58188858 RGS |
440 | Perl_save_I8(pTHX_ I8 *bytep) |
441 | { | |
a3444cc5 | 442 | dSS_ADD; |
7918f24d NC |
443 | |
444 | PERL_ARGS_ASSERT_SAVE_I8; | |
445 | ||
a3444cc5 DM |
446 | SS_ADD_PTR(bytep); |
447 | SS_ADD_UV(SAVEt_I8 | ((UV)*bytep << 8)); | |
448 | SS_ADD_END(2); | |
58188858 RGS |
449 | } |
450 | ||
451 | void | |
87a84751 JH |
452 | Perl_save_I16(pTHX_ I16 *intp) |
453 | { | |
a3444cc5 | 454 | dSS_ADD; |
7918f24d NC |
455 | |
456 | PERL_ARGS_ASSERT_SAVE_I16; | |
457 | ||
a3444cc5 DM |
458 | SS_ADD_PTR(intp); |
459 | SS_ADD_UV(SAVEt_I16 | ((UV)*intp << 8)); | |
460 | SS_ADD_END(2); | |
87a84751 JH |
461 | } |
462 | ||
463 | void | |
864dbfa3 | 464 | Perl_save_I32(pTHX_ I32 *intp) |
79072805 | 465 | { |
d172696c | 466 | const I32 i = *intp; |
9b139d09 | 467 | UV type = ((I32)((U32)i << SAVE_TIGHT_SHIFT) | SAVEt_I32_SMALL); |
d172696c DM |
468 | int size = 2; |
469 | dSS_ADD; | |
7918f24d NC |
470 | |
471 | PERL_ARGS_ASSERT_SAVE_I32; | |
472 | ||
5d9574c1 | 473 | if (UNLIKELY((I32)(type >> SAVE_TIGHT_SHIFT) != i)) { |
d172696c DM |
474 | SS_ADD_INT(i); |
475 | type = SAVEt_I32; | |
476 | size++; | |
477 | } | |
478 | SS_ADD_PTR(intp); | |
479 | SS_ADD_UV(type); | |
480 | SS_ADD_END(size); | |
79072805 LW |
481 | } |
482 | ||
e8eb279c FC |
483 | void |
484 | Perl_save_strlen(pTHX_ STRLEN *ptr) | |
485 | { | |
e8eb279c FC |
486 | dSS_ADD; |
487 | ||
488 | PERL_ARGS_ASSERT_SAVE_STRLEN; | |
489 | ||
490 | SS_ADD_IV(*ptr); | |
491 | SS_ADD_PTR(ptr); | |
492 | SS_ADD_UV(SAVEt_STRLEN); | |
493 | SS_ADD_END(3); | |
494 | } | |
495 | ||
85e6fe83 LW |
496 | /* Cannot use save_sptr() to store a char* since the SV** cast will |
497 | * force word-alignment and we'll miss the pointer. | |
498 | */ | |
499 | void | |
864dbfa3 | 500 | Perl_save_pptr(pTHX_ char **pptr) |
85e6fe83 | 501 | { |
7918f24d NC |
502 | PERL_ARGS_ASSERT_SAVE_PPTR; |
503 | ||
e22024d3 | 504 | save_pushptrptr(*pptr, pptr, SAVEt_PPTR); |
85e6fe83 LW |
505 | } |
506 | ||
79072805 | 507 | void |
146174a9 CB |
508 | Perl_save_vptr(pTHX_ void *ptr) |
509 | { | |
7918f24d NC |
510 | PERL_ARGS_ASSERT_SAVE_VPTR; |
511 | ||
e22024d3 | 512 | save_pushptrptr(*(char**)ptr, ptr, SAVEt_VPTR); |
146174a9 CB |
513 | } |
514 | ||
515 | void | |
864dbfa3 | 516 | Perl_save_sptr(pTHX_ SV **sptr) |
79072805 | 517 | { |
7918f24d NC |
518 | PERL_ARGS_ASSERT_SAVE_SPTR; |
519 | ||
e22024d3 | 520 | save_pushptrptr(*sptr, sptr, SAVEt_SPTR); |
79072805 LW |
521 | } |
522 | ||
c3564e5c | 523 | void |
09edbca0 | 524 | Perl_save_padsv_and_mortalize(pTHX_ PADOFFSET off) |
c3564e5c | 525 | { |
a3444cc5 DM |
526 | dSS_ADD; |
527 | ||
f3548bdc | 528 | ASSERT_CURPAD_ACTIVE("save_padsv"); |
a3444cc5 DM |
529 | SS_ADD_PTR(SvREFCNT_inc_simple_NN(PL_curpad[off])); |
530 | SS_ADD_PTR(PL_comppad); | |
03dba561 | 531 | SS_ADD_UV((UV)off); |
a3444cc5 DM |
532 | SS_ADD_UV(SAVEt_PADSV_AND_MORTALIZE); |
533 | SS_ADD_END(4); | |
c3564e5c GS |
534 | } |
535 | ||
79072805 | 536 | void |
864dbfa3 | 537 | Perl_save_hptr(pTHX_ HV **hptr) |
79072805 | 538 | { |
7918f24d NC |
539 | PERL_ARGS_ASSERT_SAVE_HPTR; |
540 | ||
e22024d3 | 541 | save_pushptrptr(*hptr, hptr, SAVEt_HPTR); |
79072805 LW |
542 | } |
543 | ||
544 | void | |
864dbfa3 | 545 | Perl_save_aptr(pTHX_ AV **aptr) |
79072805 | 546 | { |
7918f24d NC |
547 | PERL_ARGS_ASSERT_SAVE_APTR; |
548 | ||
e22024d3 | 549 | save_pushptrptr(*aptr, aptr, SAVEt_APTR); |
79072805 LW |
550 | } |
551 | ||
552 | void | |
2fd8beea | 553 | Perl_save_pushptr(pTHX_ void *const ptr, const int type) |
8990e307 | 554 | { |
a3444cc5 DM |
555 | dSS_ADD; |
556 | SS_ADD_PTR(ptr); | |
557 | SS_ADD_UV(type); | |
558 | SS_ADD_END(2); | |
8990e307 LW |
559 | } |
560 | ||
561 | void | |
864dbfa3 | 562 | Perl_save_clearsv(pTHX_ SV **svp) |
8990e307 | 563 | { |
cdcdfc56 NC |
564 | const UV offset = svp - PL_curpad; |
565 | const UV offset_shifted = offset << SAVE_TIGHT_SHIFT; | |
7918f24d NC |
566 | |
567 | PERL_ARGS_ASSERT_SAVE_CLEARSV; | |
568 | ||
f3548bdc | 569 | ASSERT_CURPAD_ACTIVE("save_clearsv"); |
623e28c6 | 570 | SvPADSTALE_off(*svp); /* mark lexical as active */ |
5d9574c1 | 571 | if (UNLIKELY((offset_shifted >> SAVE_TIGHT_SHIFT) != offset)) { |
cdcdfc56 NC |
572 | Perl_croak(aTHX_ "panic: pad offset %"UVuf" out of range (%p-%p)", |
573 | offset, svp, PL_curpad); | |
a3444cc5 | 574 | } |
cdcdfc56 | 575 | |
a3444cc5 DM |
576 | { |
577 | dSS_ADD; | |
578 | SS_ADD_UV(offset_shifted | SAVEt_CLEARSV); | |
579 | SS_ADD_END(1); | |
580 | } | |
8990e307 LW |
581 | } |
582 | ||
583 | void | |
864dbfa3 | 584 | Perl_save_delete(pTHX_ HV *hv, char *key, I32 klen) |
8990e307 | 585 | { |
7918f24d NC |
586 | PERL_ARGS_ASSERT_SAVE_DELETE; |
587 | ||
85a721ca | 588 | save_pushptri32ptr(key, klen, SvREFCNT_inc_simple(hv), SAVEt_DELETE); |
8990e307 LW |
589 | } |
590 | ||
591 | void | |
af097752 VP |
592 | Perl_save_hdelete(pTHX_ HV *hv, SV *keysv) |
593 | { | |
594 | STRLEN len; | |
595 | I32 klen; | |
596 | const char *key; | |
597 | ||
598 | PERL_ARGS_ASSERT_SAVE_HDELETE; | |
599 | ||
600 | key = SvPV_const(keysv, len); | |
601 | klen = SvUTF8(keysv) ? -(I32)len : (I32)len; | |
602 | SvREFCNT_inc_simple_void_NN(hv); | |
603 | save_pushptri32ptr(savepvn(key, len), klen, hv, SAVEt_DELETE); | |
604 | } | |
605 | ||
606 | void | |
c70927a6 | 607 | Perl_save_adelete(pTHX_ AV *av, SSize_t key) |
c68ec7a9 | 608 | { |
c70927a6 | 609 | dSS_ADD; |
c68ec7a9 VP |
610 | |
611 | PERL_ARGS_ASSERT_SAVE_ADELETE; | |
612 | ||
613 | SvREFCNT_inc_void(av); | |
c70927a6 FC |
614 | SS_ADD_UV(key); |
615 | SS_ADD_PTR(av); | |
616 | SS_ADD_IV(SAVEt_ADELETE); | |
617 | SS_ADD_END(3); | |
c68ec7a9 VP |
618 | } |
619 | ||
620 | void | |
12ab1f58 JH |
621 | Perl_save_destructor(pTHX_ DESTRUCTORFUNC_NOCONTEXT_t f, void* p) |
622 | { | |
a3444cc5 | 623 | dSS_ADD; |
7918f24d NC |
624 | PERL_ARGS_ASSERT_SAVE_DESTRUCTOR; |
625 | ||
a3444cc5 DM |
626 | SS_ADD_DPTR(f); |
627 | SS_ADD_PTR(p); | |
628 | SS_ADD_UV(SAVEt_DESTRUCTOR); | |
629 | SS_ADD_END(3); | |
12ab1f58 JH |
630 | } |
631 | ||
632 | void | |
146174a9 CB |
633 | Perl_save_destructor_x(pTHX_ DESTRUCTORFUNC_t f, void* p) |
634 | { | |
a3444cc5 DM |
635 | dSS_ADD; |
636 | ||
637 | SS_ADD_DXPTR(f); | |
638 | SS_ADD_PTR(p); | |
639 | SS_ADD_UV(SAVEt_DESTRUCTOR_X); | |
640 | SS_ADD_END(3); | |
146174a9 CB |
641 | } |
642 | ||
643 | void | |
da8315f8 NC |
644 | Perl_save_hints(pTHX) |
645 | { | |
20439bc7 | 646 | COPHH *save_cophh = cophh_copy(CopHINTHASH_get(&PL_compiling)); |
da8315f8 | 647 | if (PL_hints & HINT_LOCALIZE_HH) { |
52c7aca6 FC |
648 | HV *oldhh = GvHV(PL_hintgv); |
649 | save_pushptri32ptr(oldhh, PL_hints, save_cophh, SAVEt_HINTS); | |
650 | GvHV(PL_hintgv) = NULL; /* in case copying dies */ | |
651 | GvHV(PL_hintgv) = hv_copy_hints_hv(oldhh); | |
be84297e | 652 | } else { |
20439bc7 | 653 | save_pushi32ptr(PL_hints, save_cophh, SAVEt_HINTS); |
da8315f8 | 654 | } |
be84297e NC |
655 | } |
656 | ||
657 | static void | |
658 | S_save_pushptri32ptr(pTHX_ void *const ptr1, const I32 i, void *const ptr2, | |
659 | const int type) | |
660 | { | |
a3444cc5 DM |
661 | dSS_ADD; |
662 | SS_ADD_PTR(ptr1); | |
663 | SS_ADD_INT(i); | |
664 | SS_ADD_PTR(ptr2); | |
665 | SS_ADD_UV(type); | |
666 | SS_ADD_END(4); | |
da8315f8 NC |
667 | } |
668 | ||
669 | void | |
c70927a6 FC |
670 | Perl_save_aelem_flags(pTHX_ AV *av, SSize_t idx, SV **sptr, |
671 | const U32 flags) | |
4e4c362e | 672 | { |
20b7effb | 673 | dSS_ADD; |
bfc4de9f | 674 | SV *sv; |
7918f24d | 675 | |
91d1c79f | 676 | PERL_ARGS_ASSERT_SAVE_AELEM_FLAGS; |
7918f24d | 677 | |
0cbee0a4 | 678 | SvGETMAGIC(*sptr); |
c70927a6 FC |
679 | SS_ADD_PTR(SvREFCNT_inc_simple(av)); |
680 | SS_ADD_IV(idx); | |
681 | SS_ADD_PTR(SvREFCNT_inc(*sptr)); | |
682 | SS_ADD_UV(SAVEt_AELEM); | |
683 | SS_ADD_END(4); | |
1cdc9186 FC |
684 | /* The array needs to hold a reference count on its new element, so it |
685 | must be AvREAL. */ | |
5d9574c1 | 686 | if (UNLIKELY(!AvREAL(av) && AvREIFY(av))) |
1cdc9186 | 687 | av_reify(av); |
91d1c79f | 688 | save_scalar_at(sptr, flags); /* XXX - FIXME - see #60360 */ |
75d34a09 VP |
689 | if (flags & SAVEf_KEEPOLDELEM) |
690 | return; | |
bfc4de9f DM |
691 | sv = *sptr; |
692 | /* If we're localizing a tied array element, this new sv | |
693 | * won't actually be stored in the array - so it won't get | |
694 | * reaped when the localize ends. Ensure it gets reaped by | |
695 | * mortifying it instead. DAPM */ | |
5d9574c1 | 696 | if (UNLIKELY(SvTIED_mg((const SV *)av, PERL_MAGIC_tied))) |
bfc4de9f | 697 | sv_2mortal(sv); |
4e4c362e GS |
698 | } |
699 | ||
700 | void | |
af7df257 | 701 | Perl_save_helem_flags(pTHX_ HV *hv, SV *key, SV **sptr, const U32 flags) |
4e4c362e | 702 | { |
bfc4de9f | 703 | SV *sv; |
7918f24d | 704 | |
af7df257 | 705 | PERL_ARGS_ASSERT_SAVE_HELEM_FLAGS; |
7918f24d | 706 | |
0cbee0a4 | 707 | SvGETMAGIC(*sptr); |
a3444cc5 DM |
708 | { |
709 | dSS_ADD; | |
710 | SS_ADD_PTR(SvREFCNT_inc_simple(hv)); | |
711 | SS_ADD_PTR(newSVsv(key)); | |
712 | SS_ADD_PTR(SvREFCNT_inc(*sptr)); | |
713 | SS_ADD_UV(SAVEt_HELEM); | |
714 | SS_ADD_END(4); | |
715 | } | |
af7df257 | 716 | save_scalar_at(sptr, flags); |
75d34a09 VP |
717 | if (flags & SAVEf_KEEPOLDELEM) |
718 | return; | |
bfc4de9f DM |
719 | sv = *sptr; |
720 | /* If we're localizing a tied hash element, this new sv | |
721 | * won't actually be stored in the hash - so it won't get | |
722 | * reaped when the localize ends. Ensure it gets reaped by | |
723 | * mortifying it instead. DAPM */ | |
5d9574c1 | 724 | if (UNLIKELY(SvTIED_mg((const SV *)hv, PERL_MAGIC_tied))) |
bfc4de9f | 725 | sv_2mortal(sv); |
4e4c362e GS |
726 | } |
727 | ||
2053acbf NC |
728 | SV* |
729 | Perl_save_svref(pTHX_ SV **sptr) | |
730 | { | |
7918f24d NC |
731 | PERL_ARGS_ASSERT_SAVE_SVREF; |
732 | ||
2053acbf | 733 | SvGETMAGIC(*sptr); |
e22024d3 | 734 | save_pushptrptr(sptr, SvREFCNT_inc(*sptr), SAVEt_SVREF); |
af7df257 | 735 | return save_scalar_at(sptr, SAVEf_SETMAGIC); /* XXX - FIXME - see #60360 */ |
2053acbf NC |
736 | } |
737 | ||
2ef9a108 DM |
738 | |
739 | void | |
740 | Perl_savetmps(pTHX) | |
741 | { | |
742 | dSS_ADD; | |
743 | SS_ADD_IV(PL_tmps_floor); | |
744 | PL_tmps_floor = PL_tmps_ix; | |
745 | SS_ADD_UV(SAVEt_TMPSFLOOR); | |
746 | SS_ADD_END(2); | |
747 | } | |
748 | ||
749 | ||
455ece5e | 750 | I32 |
864dbfa3 | 751 | Perl_save_alloc(pTHX_ I32 size, I32 pad) |
455ece5e | 752 | { |
eb578fdb KW |
753 | const I32 start = pad + ((char*)&PL_savestack[PL_savestack_ix] |
754 | - (char*)PL_savestack); | |
1be36ce0 NC |
755 | const UV elems = 1 + ((size + pad - 1) / sizeof(*PL_savestack)); |
756 | const UV elems_shifted = elems << SAVE_TIGHT_SHIFT; | |
455ece5e | 757 | |
5d9574c1 | 758 | if (UNLIKELY((elems_shifted >> SAVE_TIGHT_SHIFT) != elems)) |
93a641ae DM |
759 | Perl_croak(aTHX_ |
760 | "panic: save_alloc elems %"UVuf" out of range (%"IVdf"-%"IVdf")", | |
761 | elems, (IV)size, (IV)pad); | |
1be36ce0 NC |
762 | |
763 | SSGROW(elems + 1); | |
455ece5e AD |
764 | |
765 | PL_savestack_ix += elems; | |
1be36ce0 | 766 | SSPUSHUV(SAVEt_ALLOC | elems_shifted); |
455ece5e AD |
767 | return start; |
768 | } | |
769 | ||
03dba561 DM |
770 | |
771 | ||
772 | #define ARG0_SV MUTABLE_SV(arg0.any_ptr) | |
773 | #define ARG0_AV MUTABLE_AV(arg0.any_ptr) | |
774 | #define ARG0_HV MUTABLE_HV(arg0.any_ptr) | |
775 | #define ARG0_PTR arg0.any_ptr | |
776 | #define ARG0_PV (char*)(arg0.any_ptr) | |
777 | #define ARG0_PVP (char**)(arg0.any_ptr) | |
778 | #define ARG0_I32 (arg0.any_i32) | |
779 | ||
780 | #define ARG1_SV MUTABLE_SV(arg1.any_ptr) | |
781 | #define ARG1_AV MUTABLE_AV(arg1.any_ptr) | |
782 | #define ARG1_GV MUTABLE_GV(arg1.any_ptr) | |
783 | #define ARG1_SVP (SV**)(arg1.any_ptr) | |
784 | #define ARG1_PVP (char**)(arg1.any_ptr) | |
785 | #define ARG1_PTR arg1.any_ptr | |
786 | #define ARG1_PV (char*)(arg1.any_ptr) | |
787 | #define ARG1_I32 (arg1.any_i32) | |
788 | ||
789 | #define ARG2_SV MUTABLE_SV(arg2.any_ptr) | |
790 | #define ARG2_AV MUTABLE_AV(arg2.any_ptr) | |
791 | #define ARG2_HV MUTABLE_HV(arg2.any_ptr) | |
792 | #define ARG2_GV MUTABLE_GV(arg2.any_ptr) | |
793 | #define ARG2_PV (char*)(arg2.any_ptr) | |
794 | ||
462e5cf6 | 795 | void |
864dbfa3 | 796 | Perl_leave_scope(pTHX_ I32 base) |
79072805 | 797 | { |
302c0c93 | 798 | /* Localise the effects of the TAINT_NOT inside the loop. */ |
284167a5 | 799 | bool was = TAINT_get; |
79072805 | 800 | |
51418c6a JH |
801 | I32 i; |
802 | SV *sv; | |
803 | ||
03dba561 DM |
804 | ANY arg0, arg1, arg2; |
805 | ||
806 | /* these initialisations are logically unnecessary, but they shut up | |
807 | * spurious 'may be used uninitialized' compiler warnings */ | |
808 | arg0.any_ptr = NULL; | |
809 | arg1.any_ptr = NULL; | |
810 | arg2.any_ptr = NULL; | |
811 | ||
5d9574c1 | 812 | if (UNLIKELY(base < -1)) |
5637ef5b | 813 | Perl_croak(aTHX_ "panic: corrupt saved stack index %ld", (long) base); |
1c98cc53 DM |
814 | DEBUG_l(Perl_deb(aTHX_ "savestack: releasing items %ld -> %ld\n", |
815 | (long)PL_savestack_ix, (long)base)); | |
3280af22 | 816 | while (PL_savestack_ix > base) { |
03dba561 DM |
817 | UV uv; |
818 | U8 type; | |
819 | ||
820 | SV *refsv; | |
821 | SV **svp; | |
822 | ||
c6ae7647 NC |
823 | TAINT_NOT; |
824 | ||
03dba561 DM |
825 | { |
826 | I32 ix = PL_savestack_ix - 1; | |
827 | ANY *p = &PL_savestack[ix]; | |
828 | uv = p->any_uv; | |
829 | type = (U8)uv & SAVE_MASK; | |
830 | if (type > SAVEt_ARG0_MAX) { | |
831 | ANY *p0 = p; | |
832 | arg0 = *--p; | |
833 | if (type > SAVEt_ARG1_MAX) { | |
834 | arg1 = *--p; | |
835 | if (type > SAVEt_ARG2_MAX) { | |
836 | arg2 = *--p; | |
837 | } | |
838 | } | |
839 | ix -= (p0 - p); | |
840 | } | |
841 | PL_savestack_ix = ix; | |
842 | } | |
843 | ||
c6bf6a65 | 844 | switch (type) { |
79072805 | 845 | case SAVEt_ITEM: /* normal string */ |
03dba561 | 846 | sv_replace(ARG1_SV, ARG0_SV); |
5d9574c1 | 847 | if (UNLIKELY(SvSMAGICAL(ARG1_SV))) { |
b492a59e DM |
848 | PL_localizing = 2; |
849 | mg_set(ARG1_SV); | |
850 | PL_localizing = 0; | |
851 | } | |
79072805 | 852 | break; |
03dba561 DM |
853 | |
854 | /* This would be a mathom, but Perl_save_svref() calls a static | |
855 | function, S_save_scalar_at(), so has to stay in this file. */ | |
856 | case SAVEt_SVREF: /* scalar reference */ | |
857 | svp = ARG1_SVP; | |
858 | refsv = NULL; /* what to refcnt_dec */ | |
859 | goto restore_sv; | |
860 | ||
8aacddc1 | 861 | case SAVEt_SV: /* scalar reference */ |
03dba561 DM |
862 | svp = &GvSV(ARG1_GV); |
863 | refsv = ARG1_SV; /* what to refcnt_dec */ | |
2053acbf | 864 | restore_sv: |
03dba561 DM |
865 | { |
866 | SV * const sv = *svp; | |
867 | *svp = ARG0_SV; | |
2053acbf | 868 | SvREFCNT_dec(sv); |
5d9574c1 | 869 | if (UNLIKELY(SvSMAGICAL(ARG0_SV))) { |
2baebb98 DM |
870 | /* mg_set could die, skipping the freeing of ARG0_SV and |
871 | * refsv; Ensure that they're always freed in that case */ | |
872 | dSS_ADD; | |
873 | SS_ADD_PTR(ARG0_SV); | |
874 | SS_ADD_UV(SAVEt_FREESV); | |
875 | SS_ADD_PTR(refsv); | |
876 | SS_ADD_UV(SAVEt_FREESV); | |
877 | SS_ADD_END(4); | |
b492a59e DM |
878 | PL_localizing = 2; |
879 | mg_set(ARG0_SV); | |
880 | PL_localizing = 0; | |
2baebb98 | 881 | break; |
b492a59e | 882 | } |
4a9a56a7 | 883 | SvREFCNT_dec_NN(ARG0_SV); |
03dba561 | 884 | SvREFCNT_dec(refsv); |
2053acbf | 885 | break; |
03dba561 | 886 | } |
8aacddc1 | 887 | case SAVEt_GENERIC_PVREF: /* generic pv */ |
03dba561 DM |
888 | if (*ARG0_PVP != ARG1_PV) { |
889 | Safefree(*ARG0_PVP); | |
890 | *ARG0_PVP = ARG1_PV; | |
f4dd75d9 GS |
891 | } |
892 | break; | |
05ec9bb3 | 893 | case SAVEt_SHARED_PVREF: /* shared pv */ |
03dba561 | 894 | if (*ARG1_PVP != ARG0_PV) { |
5e54c26f | 895 | #ifdef NETWARE |
03dba561 | 896 | PerlMem_free(*ARG1_PVP); |
5e54c26f | 897 | #else |
03dba561 | 898 | PerlMemShared_free(*ARG1_PVP); |
5e54c26f | 899 | #endif |
03dba561 | 900 | *ARG1_PVP = ARG0_PV; |
05ec9bb3 NIS |
901 | } |
902 | break; | |
f83b46a0 | 903 | case SAVEt_GVSV: /* scalar slot in GV */ |
03dba561 | 904 | svp = &GvSV(ARG1_GV); |
f83b46a0 | 905 | goto restore_svp; |
8aacddc1 | 906 | case SAVEt_GENERIC_SVREF: /* generic sv */ |
03dba561 | 907 | svp = ARG1_SVP; |
f83b46a0 | 908 | restore_svp: |
03dba561 DM |
909 | { |
910 | SV * const sv = *svp; | |
911 | *svp = ARG0_SV; | |
f4dd75d9 | 912 | SvREFCNT_dec(sv); |
03dba561 | 913 | SvREFCNT_dec(ARG0_SV); |
b9d12d37 | 914 | break; |
03dba561 | 915 | } |
db9306af | 916 | case SAVEt_GVSLOT: /* any slot in GV */ |
03dba561 DM |
917 | { |
918 | HV *const hv = GvSTASH(ARG2_GV); | |
919 | svp = ARG1_SVP; | |
db9306af | 920 | if (hv && HvENAME(hv) && ( |
03dba561 DM |
921 | (ARG0_SV && SvTYPE(ARG0_SV) == SVt_PVCV) |
922 | || (*svp && SvTYPE(*svp) == SVt_PVCV) | |
db9306af FC |
923 | )) |
924 | { | |
03dba561 DM |
925 | if ((char *)svp < (char *)GvGP(ARG2_GV) |
926 | || (char *)svp > (char *)GvGP(ARG2_GV) + sizeof(struct gp) | |
a3d47e0d | 927 | || GvREFCNT(ARG2_GV) > 2) /* "> 2" to ignore savestack's ref */ |
db9306af FC |
928 | PL_sub_generation++; |
929 | else mro_method_changed_in(hv); | |
930 | } | |
931 | goto restore_svp; | |
03dba561 | 932 | } |
8aacddc1 | 933 | case SAVEt_AV: /* array reference */ |
03dba561 DM |
934 | SvREFCNT_dec(GvAV(ARG1_GV)); |
935 | GvAV(ARG1_GV) = ARG0_AV; | |
2baebb98 | 936 | avhv_common: |
5d9574c1 | 937 | if (UNLIKELY(SvSMAGICAL(ARG0_SV))) { |
2baebb98 DM |
938 | /* mg_set might die, so make sure ARG1 isn't leaked */ |
939 | dSS_ADD; | |
940 | SS_ADD_PTR(ARG1_SV); | |
941 | SS_ADD_UV(SAVEt_FREESV); | |
942 | SS_ADD_END(2); | |
b492a59e DM |
943 | PL_localizing = 2; |
944 | mg_set(ARG0_SV); | |
945 | PL_localizing = 0; | |
2baebb98 | 946 | break; |
b492a59e | 947 | } |
4a9a56a7 | 948 | SvREFCNT_dec_NN(ARG1_GV); |
8aacddc1 NIS |
949 | break; |
950 | case SAVEt_HV: /* hash reference */ | |
03dba561 DM |
951 | SvREFCNT_dec(GvHV(ARG1_GV)); |
952 | GvHV(ARG1_GV) = ARG0_HV; | |
2baebb98 DM |
953 | goto avhv_common; |
954 | ||
994d373a | 955 | case SAVEt_INT_SMALL: |
03dba561 | 956 | *(int*)ARG0_PTR = (int)(uv >> SAVE_TIGHT_SHIFT); |
994d373a | 957 | break; |
79072805 | 958 | case SAVEt_INT: /* int reference */ |
03dba561 | 959 | *(int*)ARG0_PTR = (int)ARG1_I32; |
79072805 | 960 | break; |
e8eb279c FC |
961 | case SAVEt_STRLEN: /* STRLEN/size_t ref */ |
962 | *(STRLEN*)ARG0_PTR = (STRLEN)arg1.any_iv; | |
963 | break; | |
2ef9a108 DM |
964 | case SAVEt_TMPSFLOOR: /* restore PL_tmps_floor */ |
965 | PL_tmps_floor = (SSize_t)arg0.any_iv; | |
966 | break; | |
9febdf04 | 967 | case SAVEt_BOOL: /* bool reference */ |
03dba561 | 968 | *(bool*)ARG0_PTR = cBOOL(uv >> 8); |
9a9b5ec9 DM |
969 | #ifdef NO_TAINT_SUPPORT |
970 | PERL_UNUSED_VAR(was); | |
971 | #else | |
5d9574c1 | 972 | if (UNLIKELY(ARG0_PTR == &(TAINT_get))) { |
b6f93e7a KW |
973 | /* If we don't update <was>, to reflect what was saved on the |
974 | * stack for PL_tainted, then we will overwrite this attempt to | |
975 | * restore it when we exit this routine. Note that this won't | |
976 | * work if this value was saved in a wider-than necessary type, | |
977 | * such as I32 */ | |
03dba561 | 978 | was = *(bool*)ARG0_PTR; |
b6f93e7a | 979 | } |
284167a5 | 980 | #endif |
9febdf04 | 981 | break; |
89abef21 | 982 | case SAVEt_I32_SMALL: |
03dba561 | 983 | *(I32*)ARG0_PTR = (I32)(uv >> SAVE_TIGHT_SHIFT); |
89abef21 | 984 | break; |
79072805 | 985 | case SAVEt_I32: /* I32 reference */ |
3235b7a3 | 986 | #ifdef PERL_DEBUG_READONLY_OPS |
03dba561 | 987 | if (*(I32*)ARG0_PTR != ARG1_I32) |
3235b7a3 | 988 | #endif |
03dba561 | 989 | *(I32*)ARG0_PTR = ARG1_I32; |
79072805 LW |
990 | break; |
991 | case SAVEt_SPTR: /* SV* reference */ | |
03dba561 | 992 | *(SV**)(ARG0_PTR)= ARG1_SV; |
79072805 | 993 | break; |
146174a9 | 994 | case SAVEt_VPTR: /* random* reference */ |
85e6fe83 | 995 | case SAVEt_PPTR: /* char* reference */ |
03dba561 | 996 | *ARG0_PVP = ARG1_PV; |
85e6fe83 | 997 | break; |
79072805 | 998 | case SAVEt_HPTR: /* HV* reference */ |
03dba561 | 999 | *(HV**)ARG0_PTR = MUTABLE_HV(ARG1_PTR); |
79072805 LW |
1000 | break; |
1001 | case SAVEt_APTR: /* AV* reference */ | |
03dba561 | 1002 | *(AV**)ARG0_PTR = ARG1_AV; |
79072805 | 1003 | break; |
fb73857a | 1004 | case SAVEt_GP: /* scalar reference */ |
03dba561 DM |
1005 | { |
1006 | HV *hv; | |
1007 | /* possibly taking a method out of circulation */ | |
1008 | const bool had_method = !!GvCVu(ARG1_GV); | |
1009 | gp_free(ARG1_GV); | |
1010 | GvGP_set(ARG1_GV, (GP*)ARG0_PTR); | |
1011 | if ((hv=GvSTASH(ARG1_GV)) && HvENAME_get(hv)) { | |
1012 | if ( GvNAMELEN(ARG1_GV) == 3 | |
1013 | && strnEQ(GvNAME(ARG1_GV), "ISA", 3) | |
1014 | ) | |
1015 | mro_isa_changed_in(hv); | |
1016 | else if (had_method || GvCVu(ARG1_GV)) | |
1017 | /* putting a method back into circulation ("local")*/ | |
1018 | gv_method_changed(ARG1_GV); | |
3d460042 | 1019 | } |
4a9a56a7 | 1020 | SvREFCNT_dec_NN(ARG1_GV); |
8aacddc1 | 1021 | break; |
03dba561 | 1022 | } |
8990e307 | 1023 | case SAVEt_FREESV: |
03dba561 | 1024 | SvREFCNT_dec(ARG0_SV); |
8990e307 | 1025 | break; |
0f94cb1f FC |
1026 | case SAVEt_FREEPADNAME: |
1027 | PadnameREFCNT_dec((PADNAME *)ARG0_PTR); | |
1028 | break; | |
3987a177 | 1029 | case SAVEt_FREECOPHH: |
03dba561 | 1030 | cophh_free((COPHH *)ARG0_PTR); |
3987a177 | 1031 | break; |
26d9b02f | 1032 | case SAVEt_MORTALIZESV: |
03dba561 | 1033 | sv_2mortal(ARG0_SV); |
26d9b02f | 1034 | break; |
8990e307 | 1035 | case SAVEt_FREEOP: |
5e5ba94b | 1036 | ASSERT_CURPAD_LEGAL("SAVEt_FREEOP"); |
03dba561 | 1037 | op_free((OP*)ARG0_PTR); |
8990e307 LW |
1038 | break; |
1039 | case SAVEt_FREEPV: | |
03dba561 | 1040 | Safefree(ARG0_PTR); |
8990e307 | 1041 | break; |
4e09461c | 1042 | |
4e09461c DM |
1043 | case SAVEt_CLEARPADRANGE: |
1044 | i = (I32)((uv >> SAVE_TIGHT_SHIFT) & OPpPADRANGE_COUNTMASK); | |
1045 | svp = &PL_curpad[uv >> | |
1046 | (OPpPADRANGE_COUNTSHIFT + SAVE_TIGHT_SHIFT)] + i - 1; | |
1047 | goto clearsv; | |
8990e307 | 1048 | case SAVEt_CLEARSV: |
4e09461c DM |
1049 | svp = &PL_curpad[uv >> SAVE_TIGHT_SHIFT]; |
1050 | i = 1; | |
1051 | clearsv: | |
1052 | for (; i; i--, svp--) { | |
528ad060 DM |
1053 | sv = *svp; |
1054 | ||
1055 | DEBUG_Xv(PerlIO_printf(Perl_debug_log, | |
1056 | "Pad 0x%"UVxf"[0x%"UVxf"] clearsv: %ld sv=0x%"UVxf"<%"IVdf"> %s\n", | |
1057 | PTR2UV(PL_comppad), PTR2UV(PL_curpad), | |
1058 | (long)(svp-PL_curpad), PTR2UV(sv), (IV)SvREFCNT(sv), | |
1059 | (SvREFCNT(sv) <= 1 && !SvOBJECT(sv)) ? "clear" : "abandon" | |
1060 | )); | |
1061 | ||
1062 | /* Can clear pad variable in place? */ | |
9af15990 | 1063 | if (SvREFCNT(sv) == 1 && !SvOBJECT(sv)) { |
a07f0bef | 1064 | |
a07f0bef DM |
1065 | /* these flags are the union of all the relevant flags |
1066 | * in the individual conditions within */ | |
1067 | if (UNLIKELY(SvFLAGS(sv) & ( | |
a623f893 | 1068 | SVf_READONLY|SVf_PROTECT /*for SvREADONLY_off*/ |
a07f0bef | 1069 | | (SVs_GMG|SVs_SMG|SVs_RMG) /* SvMAGICAL() */ |
7532eaae | 1070 | | SVf_OOK |
a07f0bef DM |
1071 | | SVf_THINKFIRST))) |
1072 | { | |
7500fc82 DM |
1073 | /* if a my variable that was made readonly is |
1074 | * going out of scope, we want to remove the | |
1075 | * readonlyness so that it can go out of scope | |
1076 | * quietly | |
1077 | */ | |
57c404c9 | 1078 | if (SvREADONLY(sv)) |
7500fc82 DM |
1079 | SvREADONLY_off(sv); |
1080 | ||
7532eaae DM |
1081 | if (SvOOK(sv)) { /* OOK or HvAUX */ |
1082 | if (SvTYPE(sv) == SVt_PVHV) | |
1083 | Perl_hv_kill_backrefs(aTHX_ MUTABLE_HV(sv)); | |
1084 | else | |
1085 | sv_backoff(sv); | |
1086 | } | |
1087 | ||
7500fc82 | 1088 | if (SvMAGICAL(sv)) { |
7532eaae DM |
1089 | /* note that backrefs (either in HvAUX or magic) |
1090 | * must be removed before other magic */ | |
7500fc82 DM |
1091 | sv_unmagic(sv, PERL_MAGIC_backref); |
1092 | if (SvTYPE(sv) != SVt_PVCV) | |
1093 | mg_free(sv); | |
1094 | } | |
1095 | if (SvTHINKFIRST(sv)) | |
1096 | sv_force_normal_flags(sv, SV_IMMEDIATE_UNREF | |
1097 | |SV_COW_DROP_PV); | |
528ad060 | 1098 | |
a07f0bef | 1099 | } |
528ad060 DM |
1100 | switch (SvTYPE(sv)) { |
1101 | case SVt_NULL: | |
1102 | break; | |
1103 | case SVt_PVAV: | |
1104 | av_clear(MUTABLE_AV(sv)); | |
1105 | break; | |
1106 | case SVt_PVHV: | |
1107 | hv_clear(MUTABLE_HV(sv)); | |
1108 | break; | |
1109 | case SVt_PVCV: | |
1110 | { | |
db5cc3ee | 1111 | HEK *hek = |
db5cc3ee | 1112 | CvNAMED(sv) |
9c98a81f FC |
1113 | ? CvNAME_HEK((CV *)sv) |
1114 | : GvNAME_HEK(CvGV(sv)); | |
528ad060 | 1115 | assert(hek); |
6110d17a | 1116 | (void)share_hek_hek(hek); |
528ad060 DM |
1117 | cv_undef((CV *)sv); |
1118 | CvNAME_HEK_set(sv, hek); | |
f3feca7a | 1119 | CvLEXICAL_on(sv); |
528ad060 DM |
1120 | break; |
1121 | } | |
1122 | default: | |
c79d0076 NC |
1123 | /* This looks odd, but these two macros are for use in |
1124 | expressions and finish with a trailing comma, so | |
1125 | adding a ; after them would be wrong. */ | |
1126 | assert_not_ROK(sv) | |
1127 | assert_not_glob(sv) | |
5c85b638 | 1128 | SvFLAGS(sv) &=~ (SVf_OK|SVf_IVisUV|SVf_UTF8); |
528ad060 DM |
1129 | break; |
1130 | } | |
82e85a9c | 1131 | SvPADTMP_off(sv); |
528ad060 DM |
1132 | SvPADSTALE_on(sv); /* mark as no longer live */ |
1133 | } | |
1134 | else { /* Someone has a claim on this, so abandon it. */ | |
528ad060 DM |
1135 | switch (SvTYPE(sv)) { /* Console ourselves with a new value */ |
1136 | case SVt_PVAV: *svp = MUTABLE_SV(newAV()); break; | |
1137 | case SVt_PVHV: *svp = MUTABLE_SV(newHV()); break; | |
1138 | case SVt_PVCV: | |
1139 | { | |
9c98a81f FC |
1140 | HEK * const hek = CvNAMED(sv) |
1141 | ? CvNAME_HEK((CV *)sv) | |
1142 | : GvNAME_HEK(CvGV(sv)); | |
1143 | ||
528ad060 DM |
1144 | /* Create a stub */ |
1145 | *svp = newSV_type(SVt_PVCV); | |
1146 | ||
1147 | /* Share name */ | |
528ad060 | 1148 | CvNAME_HEK_set(*svp, |
9c98a81f | 1149 | share_hek_hek(hek)); |
f3feca7a | 1150 | CvLEXICAL_on(*svp); |
528ad060 DM |
1151 | break; |
1152 | } | |
1153 | default: *svp = newSV(0); break; | |
1154 | } | |
4a9a56a7 | 1155 | SvREFCNT_dec_NN(sv); /* Cast current value to the winds. */ |
528ad060 DM |
1156 | /* preserve pad nature, but also mark as not live |
1157 | * for any closure capturing */ | |
145bf8ee | 1158 | SvFLAGS(*svp) |= SVs_PADSTALE; |
528ad060 | 1159 | } |
4e09461c | 1160 | } |
8990e307 LW |
1161 | break; |
1162 | case SAVEt_DELETE: | |
03dba561 DM |
1163 | (void)hv_delete(ARG0_HV, ARG2_PV, ARG1_I32, G_DISCARD); |
1164 | SvREFCNT_dec(ARG0_HV); | |
1165 | Safefree(arg2.any_ptr); | |
8990e307 | 1166 | break; |
c68ec7a9 | 1167 | case SAVEt_ADELETE: |
c70927a6 | 1168 | (void)av_delete(ARG0_AV, arg1.any_iv, G_DISCARD); |
03dba561 | 1169 | SvREFCNT_dec(ARG0_AV); |
c68ec7a9 | 1170 | break; |
146174a9 | 1171 | case SAVEt_DESTRUCTOR_X: |
03dba561 | 1172 | (*arg1.any_dxptr)(aTHX_ ARG0_PTR); |
a0d0e21e LW |
1173 | break; |
1174 | case SAVEt_REGCONTEXT: | |
e0fa7e2b | 1175 | /* regexp must have croaked */ |
455ece5e | 1176 | case SAVEt_ALLOC: |
1be36ce0 | 1177 | PL_savestack_ix -= uv >> SAVE_TIGHT_SHIFT; |
a0d0e21e | 1178 | break; |
55497cff | 1179 | case SAVEt_STACK_POS: /* Position on Perl stack */ |
03dba561 | 1180 | PL_stack_sp = PL_stack_base + arg0.any_i32; |
55497cff | 1181 | break; |
161b7d16 | 1182 | case SAVEt_AELEM: /* array element */ |
c70927a6 | 1183 | svp = av_fetch(ARG2_AV, arg1.any_iv, 1); |
5d9574c1 | 1184 | if (UNLIKELY(!AvREAL(ARG2_AV) && AvREIFY(ARG2_AV))) /* undo reify guard */ |
03dba561 | 1185 | SvREFCNT_dec(ARG0_SV); |
5d9574c1 | 1186 | if (LIKELY(svp)) { |
03dba561 | 1187 | SV * const sv = *svp; |
5d9574c1 DM |
1188 | if (LIKELY(sv && sv != &PL_sv_undef)) { |
1189 | if (UNLIKELY(SvTIED_mg((const SV *)ARG2_AV, PERL_MAGIC_tied))) | |
b37c2d43 | 1190 | SvREFCNT_inc_void_NN(sv); |
03dba561 | 1191 | refsv = ARG2_SV; |
4e4c362e GS |
1192 | goto restore_sv; |
1193 | } | |
1194 | } | |
03dba561 DM |
1195 | SvREFCNT_dec(ARG2_AV); |
1196 | SvREFCNT_dec(ARG0_SV); | |
4e4c362e | 1197 | break; |
161b7d16 | 1198 | case SAVEt_HELEM: /* hash element */ |
03dba561 DM |
1199 | { |
1200 | HE * const he = hv_fetch_ent(ARG2_HV, ARG1_SV, 1, 0); | |
1201 | SvREFCNT_dec(ARG1_SV); | |
5d9574c1 | 1202 | if (LIKELY(he)) { |
03dba561 | 1203 | const SV * const oval = HeVAL(he); |
5d9574c1 | 1204 | if (LIKELY(oval && oval != &PL_sv_undef)) { |
03dba561 | 1205 | svp = &HeVAL(he); |
5d9574c1 | 1206 | if (UNLIKELY(SvTIED_mg((const SV *)ARG2_HV, PERL_MAGIC_tied))) |
03dba561 DM |
1207 | SvREFCNT_inc_void(*svp); |
1208 | refsv = ARG2_SV; /* what to refcnt_dec */ | |
4e4c362e GS |
1209 | goto restore_sv; |
1210 | } | |
1211 | } | |
03dba561 DM |
1212 | SvREFCNT_dec(ARG2_HV); |
1213 | SvREFCNT_dec(ARG0_SV); | |
4e4c362e | 1214 | break; |
03dba561 | 1215 | } |
462e5cf6 | 1216 | case SAVEt_OP: |
03dba561 | 1217 | PL_op = (OP*)ARG0_PTR; |
462e5cf6 | 1218 | break; |
25eaa213 | 1219 | case SAVEt_HINTS: |
3607ca02 FC |
1220 | if ((PL_hints & HINT_LOCALIZE_HH)) { |
1221 | while (GvHV(PL_hintgv)) { | |
2653c1e3 | 1222 | HV *hv = GvHV(PL_hintgv); |
045ac317 | 1223 | GvHV(PL_hintgv) = NULL; |
2653c1e3 | 1224 | SvREFCNT_dec(MUTABLE_SV(hv)); |
3607ca02 | 1225 | } |
045ac317 | 1226 | } |
20439bc7 | 1227 | cophh_free(CopHINTHASH_get(&PL_compiling)); |
03dba561 DM |
1228 | CopHINTHASH_set(&PL_compiling, (COPHH*)ARG0_PTR); |
1229 | *(I32*)&PL_hints = ARG1_I32; | |
dfa41748 | 1230 | if (PL_hints & HINT_LOCALIZE_HH) { |
ad64d0ec | 1231 | SvREFCNT_dec(MUTABLE_SV(GvHV(PL_hintgv))); |
85fbaab2 | 1232 | GvHV(PL_hintgv) = MUTABLE_HV(SSPOPPTR); |
2653c1e3 DM |
1233 | } |
1234 | if (!GvHV(PL_hintgv)) { | |
a3fb8386 FC |
1235 | /* Need to add a new one manually, else rv2hv can |
1236 | add one via GvHVn and it won't have the magic set. */ | |
5b9c0671 NC |
1237 | HV *const hv = newHV(); |
1238 | hv_magic(hv, NULL, PERL_MAGIC_hints); | |
1239 | GvHV(PL_hintgv) = hv; | |
dfa41748 | 1240 | } |
5b9c0671 | 1241 | assert(GvHV(PL_hintgv)); |
b3ac6de7 | 1242 | break; |
cb50131a | 1243 | case SAVEt_COMPPAD: |
03dba561 | 1244 | PL_comppad = (PAD*)ARG0_PTR; |
5d9574c1 | 1245 | if (LIKELY(PL_comppad)) |
cb50131a CB |
1246 | PL_curpad = AvARRAY(PL_comppad); |
1247 | else | |
4608196e | 1248 | PL_curpad = NULL; |
cb50131a | 1249 | break; |
09edbca0 | 1250 | case SAVEt_PADSV_AND_MORTALIZE: |
c3564e5c | 1251 | { |
09edbca0 | 1252 | SV **svp; |
03dba561 DM |
1253 | assert (ARG1_PTR); |
1254 | svp = AvARRAY((PAD*)ARG1_PTR) + (PADOFFSET)arg0.any_uv; | |
b405d38b DM |
1255 | /* This mortalizing used to be done by CX_POOPLOOP() via |
1256 | itersave. But as we have all the information here, we | |
1257 | can do it here, save even having to have itersave in | |
1258 | the struct. | |
1259 | */ | |
09edbca0 | 1260 | sv_2mortal(*svp); |
03dba561 | 1261 | *svp = ARG2_SV; |
c3564e5c GS |
1262 | } |
1263 | break; | |
8b7059b1 DM |
1264 | case SAVEt_SAVESWITCHSTACK: |
1265 | { | |
1266 | dSP; | |
03dba561 DM |
1267 | SWITCHSTACK(ARG0_AV, ARG1_AV); |
1268 | PL_curstackinfo->si_stack = ARG1_AV; | |
8b7059b1 DM |
1269 | } |
1270 | break; | |
14f338dc | 1271 | case SAVEt_SET_SVFLAGS: |
03dba561 DM |
1272 | SvFLAGS(ARG2_SV) &= ~((U32)ARG1_I32); |
1273 | SvFLAGS(ARG2_SV) |= (U32)ARG0_I32; | |
14f338dc | 1274 | break; |
95e06916 | 1275 | |
95e06916 NC |
1276 | /* These are only saved in mathoms.c */ |
1277 | case SAVEt_NSTAB: | |
03dba561 | 1278 | (void)sv_clear(ARG0_SV); |
95e06916 | 1279 | break; |
2053acbf | 1280 | case SAVEt_LONG: /* long reference */ |
03dba561 | 1281 | *(long*)ARG0_PTR = arg1.any_long; |
2053acbf | 1282 | break; |
95e06916 | 1283 | case SAVEt_IV: /* IV reference */ |
03dba561 | 1284 | *(IV*)ARG0_PTR = arg1.any_iv; |
95e06916 NC |
1285 | break; |
1286 | ||
2053acbf | 1287 | case SAVEt_I16: /* I16 reference */ |
03dba561 | 1288 | *(I16*)ARG0_PTR = (I16)(uv >> 8); |
2053acbf NC |
1289 | break; |
1290 | case SAVEt_I8: /* I8 reference */ | |
03dba561 | 1291 | *(I8*)ARG0_PTR = (I8)(uv >> 8); |
2053acbf | 1292 | break; |
2053acbf | 1293 | case SAVEt_DESTRUCTOR: |
03dba561 | 1294 | (*arg1.any_dptr)(ARG0_PTR); |
2053acbf | 1295 | break; |
68da3b2f | 1296 | case SAVEt_COMPILE_WARNINGS: |
68da3b2f NC |
1297 | if (!specialWARN(PL_compiling.cop_warnings)) |
1298 | PerlMemShared_free(PL_compiling.cop_warnings); | |
72dc9ed5 | 1299 | |
03dba561 | 1300 | PL_compiling.cop_warnings = (STRLEN*)ARG0_PTR; |
72dc9ed5 | 1301 | break; |
7c197c94 | 1302 | case SAVEt_PARSER: |
03dba561 | 1303 | parser_free((yy_parser *) ARG0_PTR); |
7c197c94 | 1304 | break; |
20d5dc23 FC |
1305 | case SAVEt_READONLY_OFF: |
1306 | SvREADONLY_off(ARG0_SV); | |
1307 | break; | |
79072805 | 1308 | default: |
5637ef5b | 1309 | Perl_croak(aTHX_ "panic: leave_scope inconsistency %u", type); |
79072805 LW |
1310 | } |
1311 | } | |
302c0c93 | 1312 | |
284167a5 | 1313 | TAINT_set(was); |
79072805 | 1314 | } |
8990e307 | 1315 | |
8990e307 | 1316 | void |
864dbfa3 | 1317 | Perl_cx_dump(pTHX_ PERL_CONTEXT *cx) |
8990e307 | 1318 | { |
7918f24d NC |
1319 | PERL_ARGS_ASSERT_CX_DUMP; |
1320 | ||
35ff7856 | 1321 | #ifdef DEBUGGING |
22c35a8c | 1322 | PerlIO_printf(Perl_debug_log, "CX %ld = %s\n", (long)(cx - cxstack), PL_block_type[CxTYPE(cx)]); |
6b35e009 | 1323 | if (CxTYPE(cx) != CXt_SUBST) { |
e8d9e9d0 | 1324 | const char *gimme_text; |
760ac839 | 1325 | PerlIO_printf(Perl_debug_log, "BLK_OLDSP = %ld\n", (long)cx->blk_oldsp); |
146174a9 CB |
1326 | PerlIO_printf(Perl_debug_log, "BLK_OLDCOP = 0x%"UVxf"\n", |
1327 | PTR2UV(cx->blk_oldcop)); | |
760ac839 LW |
1328 | PerlIO_printf(Perl_debug_log, "BLK_OLDMARKSP = %ld\n", (long)cx->blk_oldmarksp); |
1329 | PerlIO_printf(Perl_debug_log, "BLK_OLDSCOPESP = %ld\n", (long)cx->blk_oldscopesp); | |
e992140c | 1330 | PerlIO_printf(Perl_debug_log, "BLK_OLDSAVEIX = %ld\n", (long)cx->blk_oldsaveix); |
146174a9 CB |
1331 | PerlIO_printf(Perl_debug_log, "BLK_OLDPM = 0x%"UVxf"\n", |
1332 | PTR2UV(cx->blk_oldpm)); | |
e8d9e9d0 VP |
1333 | switch (cx->blk_gimme) { |
1334 | case G_VOID: | |
1335 | gimme_text = "VOID"; | |
1336 | break; | |
1337 | case G_SCALAR: | |
1338 | gimme_text = "SCALAR"; | |
1339 | break; | |
1340 | case G_ARRAY: | |
1341 | gimme_text = "LIST"; | |
1342 | break; | |
1343 | default: | |
1344 | gimme_text = "UNKNOWN"; | |
1345 | break; | |
1346 | } | |
1347 | PerlIO_printf(Perl_debug_log, "BLK_GIMME = %s\n", gimme_text); | |
8990e307 | 1348 | } |
6b35e009 | 1349 | switch (CxTYPE(cx)) { |
8990e307 LW |
1350 | case CXt_NULL: |
1351 | case CXt_BLOCK: | |
1352 | break; | |
146174a9 | 1353 | case CXt_FORMAT: |
f9c764c5 NC |
1354 | PerlIO_printf(Perl_debug_log, "BLK_FORMAT.CV = 0x%"UVxf"\n", |
1355 | PTR2UV(cx->blk_format.cv)); | |
1356 | PerlIO_printf(Perl_debug_log, "BLK_FORMAT.GV = 0x%"UVxf"\n", | |
1357 | PTR2UV(cx->blk_format.gv)); | |
1358 | PerlIO_printf(Perl_debug_log, "BLK_FORMAT.DFOUTGV = 0x%"UVxf"\n", | |
1359 | PTR2UV(cx->blk_format.dfoutgv)); | |
1360 | PerlIO_printf(Perl_debug_log, "BLK_FORMAT.HASARGS = %d\n", | |
bafb2adc | 1361 | (int)CxHASARGS(cx)); |
f9c764c5 NC |
1362 | PerlIO_printf(Perl_debug_log, "BLK_FORMAT.RETOP = 0x%"UVxf"\n", |
1363 | PTR2UV(cx->blk_format.retop)); | |
146174a9 | 1364 | break; |
8990e307 | 1365 | case CXt_SUB: |
146174a9 CB |
1366 | PerlIO_printf(Perl_debug_log, "BLK_SUB.CV = 0x%"UVxf"\n", |
1367 | PTR2UV(cx->blk_sub.cv)); | |
760ac839 | 1368 | PerlIO_printf(Perl_debug_log, "BLK_SUB.OLDDEPTH = %ld\n", |
8990e307 | 1369 | (long)cx->blk_sub.olddepth); |
760ac839 | 1370 | PerlIO_printf(Perl_debug_log, "BLK_SUB.HASARGS = %d\n", |
bafb2adc NC |
1371 | (int)CxHASARGS(cx)); |
1372 | PerlIO_printf(Perl_debug_log, "BLK_SUB.LVAL = %d\n", (int)CxLVAL(cx)); | |
f39bc417 DM |
1373 | PerlIO_printf(Perl_debug_log, "BLK_SUB.RETOP = 0x%"UVxf"\n", |
1374 | PTR2UV(cx->blk_sub.retop)); | |
8990e307 LW |
1375 | break; |
1376 | case CXt_EVAL: | |
760ac839 | 1377 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_IN_EVAL = %ld\n", |
85a64632 | 1378 | (long)CxOLD_IN_EVAL(cx)); |
760ac839 | 1379 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_OP_TYPE = %s (%s)\n", |
85a64632 NC |
1380 | PL_op_name[CxOLD_OP_TYPE(cx)], |
1381 | PL_op_desc[CxOLD_OP_TYPE(cx)]); | |
0f79a09d GS |
1382 | if (cx->blk_eval.old_namesv) |
1383 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_NAME = %s\n", | |
aa07b2f6 | 1384 | SvPVX_const(cx->blk_eval.old_namesv)); |
146174a9 CB |
1385 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_EVAL_ROOT = 0x%"UVxf"\n", |
1386 | PTR2UV(cx->blk_eval.old_eval_root)); | |
f39bc417 DM |
1387 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.RETOP = 0x%"UVxf"\n", |
1388 | PTR2UV(cx->blk_eval.retop)); | |
8990e307 LW |
1389 | break; |
1390 | ||
93661e56 | 1391 | case CXt_LOOP_PLAIN: |
c6fdafd0 | 1392 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1393 | case CXt_LOOP_LAZYSV: |
93661e56 DM |
1394 | case CXt_LOOP_LIST: |
1395 | case CXt_LOOP_ARY: | |
0cbdab38 | 1396 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.LABEL = %s\n", CxLABEL(cx)); |
022eaa24 NC |
1397 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.MY_OP = 0x%"UVxf"\n", |
1398 | PTR2UV(cx->blk_loop.my_op)); | |
0925dc7f DM |
1399 | if (CxTYPE(cx) != CXt_LOOP_PLAIN) { |
1400 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERVAR = 0x%"UVxf"\n", | |
1401 | PTR2UV(CxITERVAR(cx))); | |
1402 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERSAVE = 0x%"UVxf"\n", | |
1403 | PTR2UV(cx->blk_loop.itersave)); | |
1404 | /* XXX: not accurate for LAZYSV/IV/LIST */ | |
1405 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERARY = 0x%"UVxf"\n", | |
1406 | PTR2UV(cx->blk_loop.state_u.ary.ary)); | |
1407 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERIX = %ld\n", | |
1408 | (long)cx->blk_loop.state_u.ary.ix); | |
1409 | } | |
8990e307 LW |
1410 | break; |
1411 | ||
1412 | case CXt_SUBST: | |
760ac839 | 1413 | PerlIO_printf(Perl_debug_log, "SB_ITERS = %ld\n", |
8990e307 | 1414 | (long)cx->sb_iters); |
760ac839 | 1415 | PerlIO_printf(Perl_debug_log, "SB_MAXITERS = %ld\n", |
8990e307 | 1416 | (long)cx->sb_maxiters); |
35ef4773 GS |
1417 | PerlIO_printf(Perl_debug_log, "SB_RFLAGS = %ld\n", |
1418 | (long)cx->sb_rflags); | |
760ac839 | 1419 | PerlIO_printf(Perl_debug_log, "SB_ONCE = %ld\n", |
c5bed6a7 | 1420 | (long)CxONCE(cx)); |
760ac839 | 1421 | PerlIO_printf(Perl_debug_log, "SB_ORIG = %s\n", |
8990e307 | 1422 | cx->sb_orig); |
146174a9 CB |
1423 | PerlIO_printf(Perl_debug_log, "SB_DSTR = 0x%"UVxf"\n", |
1424 | PTR2UV(cx->sb_dstr)); | |
1425 | PerlIO_printf(Perl_debug_log, "SB_TARG = 0x%"UVxf"\n", | |
1426 | PTR2UV(cx->sb_targ)); | |
1427 | PerlIO_printf(Perl_debug_log, "SB_S = 0x%"UVxf"\n", | |
1428 | PTR2UV(cx->sb_s)); | |
1429 | PerlIO_printf(Perl_debug_log, "SB_M = 0x%"UVxf"\n", | |
1430 | PTR2UV(cx->sb_m)); | |
1431 | PerlIO_printf(Perl_debug_log, "SB_STREND = 0x%"UVxf"\n", | |
1432 | PTR2UV(cx->sb_strend)); | |
1433 | PerlIO_printf(Perl_debug_log, "SB_RXRES = 0x%"UVxf"\n", | |
1434 | PTR2UV(cx->sb_rxres)); | |
8990e307 LW |
1435 | break; |
1436 | } | |
65e66c80 | 1437 | #else |
96a5add6 | 1438 | PERL_UNUSED_CONTEXT; |
65e66c80 | 1439 | PERL_UNUSED_ARG(cx); |
17c3b450 | 1440 | #endif /* DEBUGGING */ |
35ff7856 | 1441 | } |
241d1a3b NC |
1442 | |
1443 | /* | |
14d04a33 | 1444 | * ex: set ts=8 sts=4 sw=4 et: |
37442d52 | 1445 | */ |