Commit | Line | Data |
a0d0e21e |
1 | /* scope.c |
79072805 |
2 | * |
1129b882 |
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 |
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 |
9 | */ |
10 | |
11 | /* |
4ac71550 |
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 |
16 | */ |
17 | |
ddfa107c |
18 | /* This file contains functions to manipulate several of Perl's stacks; |
166f8a29 |
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 |
27 | #include "perl.h" |
28 | |
a0d0e21e |
29 | SV** |
864dbfa3 |
30 | Perl_stack_grow(pTHX_ SV **sp, SV **p, int n) |
a0d0e21e |
31 | { |
97aff369 |
32 | dVAR; |
7918f24d |
33 | |
34 | PERL_ARGS_ASSERT_STACK_GROW; |
35 | |
3280af22 |
36 | PL_stack_sp = sp; |
2ce36478 |
37 | #ifndef STRESS_REALLOC |
3280af22 |
38 | av_extend(PL_curstack, (p - PL_stack_base) + (n) + 128); |
2ce36478 |
39 | #else |
6b88bc9c |
40 | av_extend(PL_curstack, (p - PL_stack_base) + (n) + 1); |
2ce36478 |
41 | #endif |
3280af22 |
42 | return PL_stack_sp; |
a0d0e21e |
43 | } |
44 | |
2ce36478 |
45 | #ifndef STRESS_REALLOC |
46 | #define GROW(old) ((old) * 3 / 2) |
47 | #else |
48 | #define GROW(old) ((old) + 1) |
49 | #endif |
50 | |
e336de0d |
51 | PERL_SI * |
864dbfa3 |
52 | Perl_new_stackinfo(pTHX_ I32 stitems, I32 cxitems) |
e336de0d |
53 | { |
97aff369 |
54 | dVAR; |
e336de0d |
55 | PERL_SI *si; |
a02a5408 |
56 | Newx(si, 1, PERL_SI); |
e336de0d |
57 | si->si_stack = newAV(); |
58 | AvREAL_off(si->si_stack); |
59 | av_extend(si->si_stack, stitems > 0 ? stitems-1 : 0); |
3280af22 |
60 | AvALLOC(si->si_stack)[0] = &PL_sv_undef; |
e336de0d |
61 | AvFILLp(si->si_stack) = 0; |
62 | si->si_prev = 0; |
63 | si->si_next = 0; |
64 | si->si_cxmax = cxitems - 1; |
65 | si->si_cxix = -1; |
e788e7d3 |
66 | si->si_type = PERLSI_UNDEF; |
a02a5408 |
67 | Newx(si->si_cxstack, cxitems, PERL_CONTEXT); |
9965345d |
68 | /* Without any kind of initialising PUSHSUBST() |
69 | * in pp_subst() will read uninitialised heap. */ |
7e337ee0 |
70 | PoisonNew(si->si_cxstack, cxitems, PERL_CONTEXT); |
e336de0d |
71 | return si; |
72 | } |
73 | |
79072805 |
74 | I32 |
864dbfa3 |
75 | Perl_cxinc(pTHX) |
79072805 |
76 | { |
97aff369 |
77 | dVAR; |
a3b680e6 |
78 | const IV old_max = cxstack_max; |
2ce36478 |
79 | cxstack_max = GROW(cxstack_max); |
c09156bb |
80 | Renew(cxstack, cxstack_max + 1, PERL_CONTEXT); /* XXX should fix CXINC macro */ |
9965345d |
81 | /* Without any kind of initialising deep enough recursion |
82 | * will end up reading uninitialised PERL_CONTEXTs. */ |
7e337ee0 |
83 | PoisonNew(cxstack + old_max + 1, cxstack_max - old_max, PERL_CONTEXT); |
79072805 |
84 | return cxstack_ix + 1; |
85 | } |
86 | |
79072805 |
87 | void |
864dbfa3 |
88 | Perl_push_scope(pTHX) |
79072805 |
89 | { |
97aff369 |
90 | dVAR; |
3280af22 |
91 | if (PL_scopestack_ix == PL_scopestack_max) { |
92 | PL_scopestack_max = GROW(PL_scopestack_max); |
93 | Renew(PL_scopestack, PL_scopestack_max, I32); |
d343c3ef |
94 | #ifdef DEBUGGING |
95 | Renew(PL_scopestack_name, PL_scopestack_max, const char*); |
520bb150 |
96 | #endif |
79072805 |
97 | } |
d343c3ef |
98 | #ifdef DEBUGGING |
99 | PL_scopestack_name[PL_scopestack_ix] = "unknown"; |
100 | #endif |
3280af22 |
101 | PL_scopestack[PL_scopestack_ix++] = PL_savestack_ix; |
79072805 |
102 | |
103 | } |
104 | |
105 | void |
864dbfa3 |
106 | Perl_pop_scope(pTHX) |
79072805 |
107 | { |
97aff369 |
108 | dVAR; |
35a4481c |
109 | const I32 oldsave = PL_scopestack[--PL_scopestack_ix]; |
8990e307 |
110 | LEAVE_SCOPE(oldsave); |
79072805 |
111 | } |
112 | |
113 | void |
864dbfa3 |
114 | Perl_markstack_grow(pTHX) |
a0d0e21e |
115 | { |
97aff369 |
116 | dVAR; |
35a4481c |
117 | const I32 oldmax = PL_markstack_max - PL_markstack; |
118 | const I32 newmax = GROW(oldmax); |
a0d0e21e |
119 | |
3280af22 |
120 | Renew(PL_markstack, newmax, I32); |
121 | PL_markstack_ptr = PL_markstack + oldmax; |
122 | PL_markstack_max = PL_markstack + newmax; |
a0d0e21e |
123 | } |
124 | |
125 | void |
864dbfa3 |
126 | Perl_savestack_grow(pTHX) |
79072805 |
127 | { |
97aff369 |
128 | dVAR; |
8aacddc1 |
129 | PL_savestack_max = GROW(PL_savestack_max) + 4; |
3280af22 |
130 | Renew(PL_savestack, PL_savestack_max, ANY); |
79072805 |
131 | } |
132 | |
4b3c1a47 |
133 | void |
134 | Perl_savestack_grow_cnt(pTHX_ I32 need) |
135 | { |
97aff369 |
136 | dVAR; |
4b3c1a47 |
137 | PL_savestack_max = PL_savestack_ix + need; |
138 | Renew(PL_savestack, PL_savestack_max, ANY); |
139 | } |
140 | |
2ce36478 |
141 | #undef GROW |
142 | |
79072805 |
143 | void |
864dbfa3 |
144 | Perl_tmps_grow(pTHX_ I32 n) |
677b06e3 |
145 | { |
97aff369 |
146 | dVAR; |
677b06e3 |
147 | #ifndef STRESS_REALLOC |
148 | if (n < 128) |
149 | n = (PL_tmps_max < 512) ? 128 : 512; |
150 | #endif |
151 | PL_tmps_max = PL_tmps_ix + n + 1; |
152 | Renew(PL_tmps_stack, PL_tmps_max, SV*); |
153 | } |
154 | |
155 | |
156 | void |
864dbfa3 |
157 | Perl_free_tmps(pTHX) |
79072805 |
158 | { |
97aff369 |
159 | dVAR; |
79072805 |
160 | /* XXX should tmps_floor live in cxstack? */ |
35a4481c |
161 | const I32 myfloor = PL_tmps_floor; |
3280af22 |
162 | while (PL_tmps_ix > myfloor) { /* clean up after last statement */ |
901017d6 |
163 | SV* const sv = PL_tmps_stack[PL_tmps_ix]; |
a0714e2c |
164 | PL_tmps_stack[PL_tmps_ix--] = NULL; |
8aacddc1 |
165 | if (sv && sv != &PL_sv_undef) { |
463ee0b2 |
166 | SvTEMP_off(sv); |
8990e307 |
167 | SvREFCNT_dec(sv); /* note, can modify tmps_ix!!! */ |
463ee0b2 |
168 | } |
79072805 |
169 | } |
170 | } |
171 | |
76e3520e |
172 | STATIC SV * |
af7df257 |
173 | S_save_scalar_at(pTHX_ SV **sptr, const U32 flags) |
79072805 |
174 | { |
97aff369 |
175 | dVAR; |
75d34a09 |
176 | SV * osv; |
177 | register SV *sv; |
79072805 |
178 | |
7918f24d |
179 | PERL_ARGS_ASSERT_SAVE_SCALAR_AT; |
180 | |
75d34a09 |
181 | osv = *sptr; |
182 | sv = (flags & SAVEf_KEEPOLDELEM) ? osv : (*sptr = newSV(0)); |
183 | |
a0d0e21e |
184 | if (SvTYPE(osv) >= SVt_PVMG && SvMAGIC(osv) && SvTYPE(osv) != SVt_PVGV) { |
a0d0e21e |
185 | if (SvGMAGICAL(osv)) { |
35a4481c |
186 | const bool oldtainted = PL_tainted; |
a0d0e21e |
187 | SvFLAGS(osv) |= (SvFLAGS(osv) & |
c268c2a6 |
188 | (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
3280af22 |
189 | PL_tainted = oldtainted; |
a0d0e21e |
190 | } |
75d34a09 |
191 | if (!(flags & SAVEf_KEEPOLDELEM)) |
192 | mg_localize(osv, sv, (flags & SAVEf_SETMAGIC) != 0); |
79072805 |
193 | } |
75d34a09 |
194 | |
79072805 |
195 | return sv; |
196 | } |
197 | |
dfcd3de5 |
198 | void |
199 | Perl_save_pushptrptr(pTHX_ void *const ptr1, void *const ptr2, const int type) |
e22024d3 |
200 | { |
201 | dVAR; |
202 | SSCHECK(3); |
203 | SSPUSHPTR(ptr1); |
204 | SSPUSHPTR(ptr2); |
c6bf6a65 |
205 | SSPUSHUV(type); |
e22024d3 |
206 | } |
207 | |
7a4c00b4 |
208 | SV * |
864dbfa3 |
209 | Perl_save_scalar(pTHX_ GV *gv) |
7a4c00b4 |
210 | { |
97aff369 |
211 | dVAR; |
fb4fc1fa |
212 | SV ** const sptr = &GvSVn(gv); |
7918f24d |
213 | |
214 | PERL_ARGS_ASSERT_SAVE_SCALAR; |
215 | |
27cc343c |
216 | PL_localizing = 1; |
0cbee0a4 |
217 | SvGETMAGIC(*sptr); |
27cc343c |
218 | PL_localizing = 0; |
e22024d3 |
219 | save_pushptrptr(SvREFCNT_inc_simple(gv), SvREFCNT_inc(*sptr), SAVEt_SV); |
af7df257 |
220 | return save_scalar_at(sptr, SAVEf_SETMAGIC); /* XXX - FIXME - see #60360 */ |
7a4c00b4 |
221 | } |
222 | |
f4dd75d9 |
223 | /* Like save_sptr(), but also SvREFCNT_dec()s the new value. Can be used to |
b9d12d37 |
224 | * restore a global SV to its prior contents, freeing new value. */ |
225 | void |
864dbfa3 |
226 | Perl_save_generic_svref(pTHX_ SV **sptr) |
b9d12d37 |
227 | { |
97aff369 |
228 | dVAR; |
7918f24d |
229 | |
230 | PERL_ARGS_ASSERT_SAVE_GENERIC_SVREF; |
231 | |
e22024d3 |
232 | save_pushptrptr(sptr, SvREFCNT_inc(*sptr), SAVEt_GENERIC_SVREF); |
b9d12d37 |
233 | } |
234 | |
f4dd75d9 |
235 | /* Like save_pptr(), but also Safefree()s the new value if it is different |
236 | * from the old one. Can be used to restore a global char* to its prior |
237 | * contents, freeing new value. */ |
238 | void |
239 | Perl_save_generic_pvref(pTHX_ char **str) |
240 | { |
97aff369 |
241 | dVAR; |
7918f24d |
242 | |
243 | PERL_ARGS_ASSERT_SAVE_GENERIC_PVREF; |
244 | |
e22024d3 |
245 | save_pushptrptr(*str, str, SAVEt_GENERIC_PVREF); |
f4dd75d9 |
246 | } |
247 | |
05ec9bb3 |
248 | /* Like save_generic_pvref(), but uses PerlMemShared_free() rather than Safefree(). |
249 | * Can be used to restore a shared global char* to its prior |
250 | * contents, freeing new value. */ |
251 | void |
252 | Perl_save_shared_pvref(pTHX_ char **str) |
253 | { |
97aff369 |
254 | dVAR; |
7918f24d |
255 | |
256 | PERL_ARGS_ASSERT_SAVE_SHARED_PVREF; |
257 | |
e22024d3 |
258 | save_pushptrptr(str, *str, SAVEt_SHARED_PVREF); |
05ec9bb3 |
259 | } |
260 | |
14f338dc |
261 | /* set the SvFLAGS specified by mask to the values in val */ |
262 | |
263 | void |
264 | Perl_save_set_svflags(pTHX_ SV* sv, U32 mask, U32 val) |
265 | { |
97aff369 |
266 | dVAR; |
7918f24d |
267 | |
268 | PERL_ARGS_ASSERT_SAVE_SET_SVFLAGS; |
269 | |
14f338dc |
270 | SSCHECK(4); |
271 | SSPUSHPTR(sv); |
272 | SSPUSHINT(mask); |
273 | SSPUSHINT(val); |
c6bf6a65 |
274 | SSPUSHUV(SAVEt_SET_SVFLAGS); |
14f338dc |
275 | } |
276 | |
79072805 |
277 | void |
864dbfa3 |
278 | Perl_save_gp(pTHX_ GV *gv, I32 empty) |
79072805 |
279 | { |
97aff369 |
280 | dVAR; |
7918f24d |
281 | |
282 | PERL_ARGS_ASSERT_SAVE_GP; |
283 | |
b9e00b79 |
284 | SSCHECK(4); |
285 | SSPUSHINT(SvFAKE(gv)); |
286 | SSPUSHPTR(GvGP(gv)); |
287 | SSPUSHPTR(SvREFCNT_inc(gv)); |
86e10ae1 |
288 | SSPUSHUV(SAVEt_GP); |
b9e00b79 |
289 | |
290 | /* Don't let the localized GV coerce into non-glob, otherwise we would |
291 | * not be able to restore GP upon leave from context if that happened */ |
292 | SvFAKE_off(gv); |
79072805 |
293 | |
5f05dabc |
294 | if (empty) { |
12816592 |
295 | GP *gp = Perl_newGP(aTHX_ gv); |
146174a9 |
296 | |
fae75791 |
297 | if (GvCVu(gv)) |
e1a479c5 |
298 | mro_method_changed_in(GvSTASH(gv)); /* taking a method out of circulation ("local")*/ |
146174a9 |
299 | if (GvIOp(gv) && (IoFLAGS(GvIOp(gv)) & IOf_ARGV)) { |
300 | gp->gp_io = newIO(); |
301 | IoFLAGS(gp->gp_io) |= IOf_ARGV|IOf_START; |
302 | } |
72651472 |
303 | #ifdef PERL_DONT_CREATE_GVSV |
304 | if (gv == PL_errgv) { |
305 | /* We could scatter this logic everywhere by changing the |
306 | definition of ERRSV from GvSV() to GvSVn(), but it seems more |
307 | efficient to do this check once here. */ |
308 | gp->gp_sv = newSV(0); |
309 | } |
310 | #endif |
12816592 |
311 | GvGP(gv) = gp; |
5f05dabc |
312 | } |
313 | else { |
44a8e56a |
314 | gp_ref(GvGP(gv)); |
5f05dabc |
315 | GvINTRO_on(gv); |
316 | } |
79072805 |
317 | } |
79072805 |
318 | |
79072805 |
319 | AV * |
864dbfa3 |
320 | Perl_save_ary(pTHX_ GV *gv) |
79072805 |
321 | { |
97aff369 |
322 | dVAR; |
901017d6 |
323 | AV * const oav = GvAVn(gv); |
67a38de0 |
324 | AV *av; |
fb73857a |
325 | |
7918f24d |
326 | PERL_ARGS_ASSERT_SAVE_ARY; |
327 | |
67a38de0 |
328 | if (!AvREAL(oav) && AvREIFY(oav)) |
329 | av_reify(oav); |
e22024d3 |
330 | save_pushptrptr(gv, oav, SAVEt_AV); |
79072805 |
331 | |
4608196e |
332 | GvAV(gv) = NULL; |
fb73857a |
333 | av = GvAVn(gv); |
0cbee0a4 |
334 | if (SvMAGIC(oav)) |
9711599e |
335 | mg_localize(MUTABLE_SV(oav), MUTABLE_SV(av), TRUE); |
fb73857a |
336 | return av; |
79072805 |
337 | } |
338 | |
339 | HV * |
864dbfa3 |
340 | Perl_save_hash(pTHX_ GV *gv) |
79072805 |
341 | { |
97aff369 |
342 | dVAR; |
fb73857a |
343 | HV *ohv, *hv; |
344 | |
7918f24d |
345 | PERL_ARGS_ASSERT_SAVE_HASH; |
346 | |
e22024d3 |
347 | save_pushptrptr(gv, (ohv = GvHVn(gv)), SAVEt_HV); |
79072805 |
348 | |
4608196e |
349 | GvHV(gv) = NULL; |
fb73857a |
350 | hv = GvHVn(gv); |
0cbee0a4 |
351 | if (SvMAGIC(ohv)) |
9711599e |
352 | mg_localize(MUTABLE_SV(ohv), MUTABLE_SV(hv), TRUE); |
fb73857a |
353 | return hv; |
79072805 |
354 | } |
355 | |
356 | void |
864dbfa3 |
357 | Perl_save_item(pTHX_ register SV *item) |
79072805 |
358 | { |
97aff369 |
359 | dVAR; |
901017d6 |
360 | register SV * const sv = newSVsv(item); |
79072805 |
361 | |
7918f24d |
362 | PERL_ARGS_ASSERT_SAVE_ITEM; |
363 | |
e22024d3 |
364 | save_pushptrptr(item, /* remember the pointer */ |
365 | sv, /* remember the value */ |
366 | SAVEt_ITEM); |
79072805 |
367 | } |
368 | |
369 | void |
1409bc06 |
370 | Perl_save_bool(pTHX_ bool *boolp) |
79072805 |
371 | { |
97aff369 |
372 | dVAR; |
7918f24d |
373 | |
1409bc06 |
374 | PERL_ARGS_ASSERT_SAVE_BOOL; |
7918f24d |
375 | |
65504245 |
376 | SSCHECK(2); |
1409bc06 |
377 | SSPUSHPTR(boolp); |
65504245 |
378 | SSPUSHUV(SAVEt_BOOL | (*boolp << 8)); |
1409bc06 |
379 | } |
380 | |
7623d426 |
381 | void |
382 | Perl_save_pushi32ptr(pTHX_ const I32 i, void *const ptr, const int type) |
1409bc06 |
383 | { |
384 | dVAR; |
385 | SSCHECK(3); |
386 | SSPUSHINT(i); |
387 | SSPUSHPTR(ptr); |
c6bf6a65 |
388 | SSPUSHUV(type); |
79072805 |
389 | } |
390 | |
391 | void |
1409bc06 |
392 | Perl_save_int(pTHX_ int *intp) |
9febdf04 |
393 | { |
97aff369 |
394 | dVAR; |
994d373a |
395 | const UV shifted = (UV)*intp << SAVE_TIGHT_SHIFT; |
7918f24d |
396 | |
1409bc06 |
397 | PERL_ARGS_ASSERT_SAVE_INT; |
7918f24d |
398 | |
994d373a |
399 | if ((int)(shifted >> SAVE_TIGHT_SHIFT) == *intp) { |
400 | SSCHECK(2); |
401 | SSPUSHPTR(intp); |
402 | SSPUSHUV(SAVEt_INT_SMALL | shifted); |
403 | } else |
404 | save_pushi32ptr(*intp, intp, SAVEt_INT); |
9febdf04 |
405 | } |
406 | |
407 | void |
58188858 |
408 | Perl_save_I8(pTHX_ I8 *bytep) |
409 | { |
410 | dVAR; |
7918f24d |
411 | |
412 | PERL_ARGS_ASSERT_SAVE_I8; |
413 | |
6c61c2d4 |
414 | SSCHECK(2); |
415 | SSPUSHPTR(bytep); |
416 | SSPUSHUV(SAVEt_I8 | ((UV)*bytep << 8)); |
58188858 |
417 | } |
418 | |
419 | void |
87a84751 |
420 | Perl_save_I16(pTHX_ I16 *intp) |
421 | { |
422 | dVAR; |
7918f24d |
423 | |
424 | PERL_ARGS_ASSERT_SAVE_I16; |
425 | |
c9441fce |
426 | SSCHECK(2); |
427 | SSPUSHPTR(intp); |
428 | SSPUSHUV(SAVEt_I16 | ((UV)*intp << 8)); |
87a84751 |
429 | } |
430 | |
431 | void |
864dbfa3 |
432 | Perl_save_I32(pTHX_ I32 *intp) |
79072805 |
433 | { |
97aff369 |
434 | dVAR; |
89abef21 |
435 | const UV shifted = (UV)*intp << SAVE_TIGHT_SHIFT; |
7918f24d |
436 | |
437 | PERL_ARGS_ASSERT_SAVE_I32; |
438 | |
89abef21 |
439 | if ((I32)(shifted >> SAVE_TIGHT_SHIFT) == *intp) { |
440 | SSCHECK(2); |
441 | SSPUSHPTR(intp); |
442 | SSPUSHUV(SAVEt_I32_SMALL | shifted); |
443 | } else |
444 | save_pushi32ptr(*intp, intp, SAVEt_I32); |
79072805 |
445 | } |
446 | |
85e6fe83 |
447 | /* Cannot use save_sptr() to store a char* since the SV** cast will |
448 | * force word-alignment and we'll miss the pointer. |
449 | */ |
450 | void |
864dbfa3 |
451 | Perl_save_pptr(pTHX_ char **pptr) |
85e6fe83 |
452 | { |
97aff369 |
453 | dVAR; |
7918f24d |
454 | |
455 | PERL_ARGS_ASSERT_SAVE_PPTR; |
456 | |
e22024d3 |
457 | save_pushptrptr(*pptr, pptr, SAVEt_PPTR); |
85e6fe83 |
458 | } |
459 | |
79072805 |
460 | void |
146174a9 |
461 | Perl_save_vptr(pTHX_ void *ptr) |
462 | { |
97aff369 |
463 | dVAR; |
7918f24d |
464 | |
465 | PERL_ARGS_ASSERT_SAVE_VPTR; |
466 | |
e22024d3 |
467 | save_pushptrptr(*(char**)ptr, ptr, SAVEt_VPTR); |
146174a9 |
468 | } |
469 | |
470 | void |
864dbfa3 |
471 | Perl_save_sptr(pTHX_ SV **sptr) |
79072805 |
472 | { |
97aff369 |
473 | dVAR; |
7918f24d |
474 | |
475 | PERL_ARGS_ASSERT_SAVE_SPTR; |
476 | |
e22024d3 |
477 | save_pushptrptr(*sptr, sptr, SAVEt_SPTR); |
79072805 |
478 | } |
479 | |
c3564e5c |
480 | void |
09edbca0 |
481 | Perl_save_padsv_and_mortalize(pTHX_ PADOFFSET off) |
c3564e5c |
482 | { |
97aff369 |
483 | dVAR; |
c3564e5c |
484 | SSCHECK(4); |
f3548bdc |
485 | ASSERT_CURPAD_ACTIVE("save_padsv"); |
09edbca0 |
486 | SSPUSHPTR(SvREFCNT_inc_simple_NN(PL_curpad[off])); |
f3548bdc |
487 | SSPUSHPTR(PL_comppad); |
c3564e5c |
488 | SSPUSHLONG((long)off); |
c6bf6a65 |
489 | SSPUSHUV(SAVEt_PADSV_AND_MORTALIZE); |
c3564e5c |
490 | } |
491 | |
79072805 |
492 | void |
864dbfa3 |
493 | Perl_save_hptr(pTHX_ HV **hptr) |
79072805 |
494 | { |
97aff369 |
495 | dVAR; |
7918f24d |
496 | |
497 | PERL_ARGS_ASSERT_SAVE_HPTR; |
498 | |
e22024d3 |
499 | save_pushptrptr(*hptr, hptr, SAVEt_HPTR); |
79072805 |
500 | } |
501 | |
502 | void |
864dbfa3 |
503 | Perl_save_aptr(pTHX_ AV **aptr) |
79072805 |
504 | { |
97aff369 |
505 | dVAR; |
7918f24d |
506 | |
507 | PERL_ARGS_ASSERT_SAVE_APTR; |
508 | |
e22024d3 |
509 | save_pushptrptr(*aptr, aptr, SAVEt_APTR); |
79072805 |
510 | } |
511 | |
512 | void |
2fd8beea |
513 | Perl_save_pushptr(pTHX_ void *const ptr, const int type) |
8990e307 |
514 | { |
97aff369 |
515 | dVAR; |
8990e307 |
516 | SSCHECK(2); |
2fd8beea |
517 | SSPUSHPTR(ptr); |
c6bf6a65 |
518 | SSPUSHUV(type); |
8990e307 |
519 | } |
520 | |
521 | void |
864dbfa3 |
522 | Perl_save_clearsv(pTHX_ SV **svp) |
8990e307 |
523 | { |
97aff369 |
524 | dVAR; |
cdcdfc56 |
525 | const UV offset = svp - PL_curpad; |
526 | const UV offset_shifted = offset << SAVE_TIGHT_SHIFT; |
7918f24d |
527 | |
528 | PERL_ARGS_ASSERT_SAVE_CLEARSV; |
529 | |
f3548bdc |
530 | ASSERT_CURPAD_ACTIVE("save_clearsv"); |
cdcdfc56 |
531 | if ((offset_shifted >> SAVE_TIGHT_SHIFT) != offset) |
532 | Perl_croak(aTHX_ "panic: pad offset %"UVuf" out of range (%p-%p)", |
533 | offset, svp, PL_curpad); |
534 | |
535 | SSCHECK(1); |
536 | SSPUSHUV(offset_shifted | SAVEt_CLEARSV); |
d9d18af6 |
537 | SvPADSTALE_off(*svp); /* mark lexical as active */ |
8990e307 |
538 | } |
539 | |
540 | void |
864dbfa3 |
541 | Perl_save_delete(pTHX_ HV *hv, char *key, I32 klen) |
8990e307 |
542 | { |
97aff369 |
543 | dVAR; |
7918f24d |
544 | |
545 | PERL_ARGS_ASSERT_SAVE_DELETE; |
546 | |
85a721ca |
547 | save_pushptri32ptr(key, klen, SvREFCNT_inc_simple(hv), SAVEt_DELETE); |
8990e307 |
548 | } |
549 | |
550 | void |
af097752 |
551 | Perl_save_hdelete(pTHX_ HV *hv, SV *keysv) |
552 | { |
553 | STRLEN len; |
554 | I32 klen; |
555 | const char *key; |
556 | |
557 | PERL_ARGS_ASSERT_SAVE_HDELETE; |
558 | |
559 | key = SvPV_const(keysv, len); |
560 | klen = SvUTF8(keysv) ? -(I32)len : (I32)len; |
561 | SvREFCNT_inc_simple_void_NN(hv); |
562 | save_pushptri32ptr(savepvn(key, len), klen, hv, SAVEt_DELETE); |
563 | } |
564 | |
565 | void |
c68ec7a9 |
566 | Perl_save_adelete(pTHX_ AV *av, I32 key) |
567 | { |
568 | dVAR; |
569 | |
570 | PERL_ARGS_ASSERT_SAVE_ADELETE; |
571 | |
572 | SvREFCNT_inc_void(av); |
573 | save_pushi32ptr(key, av, SAVEt_ADELETE); |
574 | } |
575 | |
576 | void |
12ab1f58 |
577 | Perl_save_destructor(pTHX_ DESTRUCTORFUNC_NOCONTEXT_t f, void* p) |
578 | { |
579 | dVAR; |
7918f24d |
580 | |
581 | PERL_ARGS_ASSERT_SAVE_DESTRUCTOR; |
582 | |
12ab1f58 |
583 | SSCHECK(3); |
584 | SSPUSHDPTR(f); |
585 | SSPUSHPTR(p); |
c6bf6a65 |
586 | SSPUSHUV(SAVEt_DESTRUCTOR); |
12ab1f58 |
587 | } |
588 | |
589 | void |
146174a9 |
590 | Perl_save_destructor_x(pTHX_ DESTRUCTORFUNC_t f, void* p) |
591 | { |
97aff369 |
592 | dVAR; |
146174a9 |
593 | SSCHECK(3); |
594 | SSPUSHDXPTR(f); |
595 | SSPUSHPTR(p); |
c6bf6a65 |
596 | SSPUSHUV(SAVEt_DESTRUCTOR_X); |
146174a9 |
597 | } |
598 | |
599 | void |
da8315f8 |
600 | Perl_save_hints(pTHX) |
601 | { |
602 | dVAR; |
603 | if (PL_compiling.cop_hints_hash) { |
604 | HINTS_REFCNT_LOCK; |
605 | PL_compiling.cop_hints_hash->refcounted_he_refcnt++; |
606 | HINTS_REFCNT_UNLOCK; |
607 | } |
da8315f8 |
608 | if (PL_hints & HINT_LOCALIZE_HH) { |
be84297e |
609 | save_pushptri32ptr(GvHV(PL_hintgv), PL_hints, |
610 | PL_compiling.cop_hints_hash, SAVEt_HINTS); |
da8315f8 |
611 | GvHV(PL_hintgv) = Perl_hv_copy_hints_hv(aTHX_ GvHV(PL_hintgv)); |
be84297e |
612 | } else { |
613 | save_pushi32ptr(PL_hints, PL_compiling.cop_hints_hash, SAVEt_HINTS); |
da8315f8 |
614 | } |
be84297e |
615 | } |
616 | |
617 | static void |
618 | S_save_pushptri32ptr(pTHX_ void *const ptr1, const I32 i, void *const ptr2, |
619 | const int type) |
620 | { |
621 | SSCHECK(4); |
622 | SSPUSHPTR(ptr1); |
623 | SSPUSHINT(i); |
624 | SSPUSHPTR(ptr2); |
c6bf6a65 |
625 | SSPUSHUV(type); |
da8315f8 |
626 | } |
627 | |
628 | void |
91d1c79f |
629 | Perl_save_aelem_flags(pTHX_ AV *av, I32 idx, SV **sptr, const U32 flags) |
4e4c362e |
630 | { |
97aff369 |
631 | dVAR; |
bfc4de9f |
632 | SV *sv; |
7918f24d |
633 | |
91d1c79f |
634 | PERL_ARGS_ASSERT_SAVE_AELEM_FLAGS; |
7918f24d |
635 | |
0cbee0a4 |
636 | SvGETMAGIC(*sptr); |
be84297e |
637 | save_pushptri32ptr(SvREFCNT_inc_simple(av), idx, SvREFCNT_inc(*sptr), |
638 | SAVEt_AELEM); |
5dd42e15 |
639 | /* if it gets reified later, the restore will have the wrong refcnt */ |
640 | if (!AvREAL(av) && AvREIFY(av)) |
b37c2d43 |
641 | SvREFCNT_inc_void(*sptr); |
91d1c79f |
642 | save_scalar_at(sptr, flags); /* XXX - FIXME - see #60360 */ |
75d34a09 |
643 | if (flags & SAVEf_KEEPOLDELEM) |
644 | return; |
bfc4de9f |
645 | sv = *sptr; |
646 | /* If we're localizing a tied array element, this new sv |
647 | * won't actually be stored in the array - so it won't get |
648 | * reaped when the localize ends. Ensure it gets reaped by |
649 | * mortifying it instead. DAPM */ |
daeb922a |
650 | if (SvTIED_mg((const SV *)av, PERL_MAGIC_tied)) |
bfc4de9f |
651 | sv_2mortal(sv); |
4e4c362e |
652 | } |
653 | |
654 | void |
af7df257 |
655 | Perl_save_helem_flags(pTHX_ HV *hv, SV *key, SV **sptr, const U32 flags) |
4e4c362e |
656 | { |
97aff369 |
657 | dVAR; |
bfc4de9f |
658 | SV *sv; |
7918f24d |
659 | |
af7df257 |
660 | PERL_ARGS_ASSERT_SAVE_HELEM_FLAGS; |
7918f24d |
661 | |
0cbee0a4 |
662 | SvGETMAGIC(*sptr); |
4e4c362e |
663 | SSCHECK(4); |
b37c2d43 |
664 | SSPUSHPTR(SvREFCNT_inc_simple(hv)); |
b2096149 |
665 | SSPUSHPTR(newSVsv(key)); |
4e4c362e |
666 | SSPUSHPTR(SvREFCNT_inc(*sptr)); |
c6bf6a65 |
667 | SSPUSHUV(SAVEt_HELEM); |
af7df257 |
668 | save_scalar_at(sptr, flags); |
75d34a09 |
669 | if (flags & SAVEf_KEEPOLDELEM) |
670 | return; |
bfc4de9f |
671 | sv = *sptr; |
672 | /* If we're localizing a tied hash element, this new sv |
673 | * won't actually be stored in the hash - so it won't get |
674 | * reaped when the localize ends. Ensure it gets reaped by |
675 | * mortifying it instead. DAPM */ |
daeb922a |
676 | if (SvTIED_mg((const SV *)hv, PERL_MAGIC_tied)) |
bfc4de9f |
677 | sv_2mortal(sv); |
4e4c362e |
678 | } |
679 | |
2053acbf |
680 | SV* |
681 | Perl_save_svref(pTHX_ SV **sptr) |
682 | { |
683 | dVAR; |
7918f24d |
684 | |
685 | PERL_ARGS_ASSERT_SAVE_SVREF; |
686 | |
2053acbf |
687 | SvGETMAGIC(*sptr); |
e22024d3 |
688 | save_pushptrptr(sptr, SvREFCNT_inc(*sptr), SAVEt_SVREF); |
af7df257 |
689 | return save_scalar_at(sptr, SAVEf_SETMAGIC); /* XXX - FIXME - see #60360 */ |
2053acbf |
690 | } |
691 | |
455ece5e |
692 | I32 |
864dbfa3 |
693 | Perl_save_alloc(pTHX_ I32 size, I32 pad) |
455ece5e |
694 | { |
97aff369 |
695 | dVAR; |
35a4481c |
696 | register const I32 start = pad + ((char*)&PL_savestack[PL_savestack_ix] |
8aacddc1 |
697 | - (char*)PL_savestack); |
1be36ce0 |
698 | const UV elems = 1 + ((size + pad - 1) / sizeof(*PL_savestack)); |
699 | const UV elems_shifted = elems << SAVE_TIGHT_SHIFT; |
455ece5e |
700 | |
1be36ce0 |
701 | if ((elems_shifted >> SAVE_TIGHT_SHIFT) != elems) |
702 | Perl_croak(aTHX_ "panic: save_alloc elems %"UVuf" out of range (%ld-%ld)", |
703 | elems, size, pad); |
704 | |
705 | SSGROW(elems + 1); |
455ece5e |
706 | |
707 | PL_savestack_ix += elems; |
1be36ce0 |
708 | SSPUSHUV(SAVEt_ALLOC | elems_shifted); |
455ece5e |
709 | return start; |
710 | } |
711 | |
462e5cf6 |
712 | void |
864dbfa3 |
713 | Perl_leave_scope(pTHX_ I32 base) |
79072805 |
714 | { |
97aff369 |
715 | dVAR; |
79072805 |
716 | register SV *sv; |
717 | register SV *value; |
718 | register GV *gv; |
719 | register AV *av; |
720 | register HV *hv; |
20454177 |
721 | void* ptr; |
f4dd75d9 |
722 | register char* str; |
161b7d16 |
723 | I32 i; |
302c0c93 |
724 | /* Localise the effects of the TAINT_NOT inside the loop. */ |
725 | const bool was = PL_tainted; |
79072805 |
726 | |
727 | if (base < -1) |
cea2e8a9 |
728 | Perl_croak(aTHX_ "panic: corrupt saved stack index"); |
1c98cc53 |
729 | DEBUG_l(Perl_deb(aTHX_ "savestack: releasing items %ld -> %ld\n", |
730 | (long)PL_savestack_ix, (long)base)); |
3280af22 |
731 | while (PL_savestack_ix > base) { |
c6bf6a65 |
732 | UV uv = SSPOPUV; |
733 | const U8 type = (U8)uv & SAVE_MASK; |
c6ae7647 |
734 | TAINT_NOT; |
735 | |
c6bf6a65 |
736 | switch (type) { |
79072805 |
737 | case SAVEt_ITEM: /* normal string */ |
ad64d0ec |
738 | value = MUTABLE_SV(SSPOPPTR); |
739 | sv = MUTABLE_SV(SSPOPPTR); |
79072805 |
740 | sv_replace(sv,value); |
3280af22 |
741 | PL_localizing = 2; |
79072805 |
742 | SvSETMAGIC(sv); |
3280af22 |
743 | PL_localizing = 0; |
79072805 |
744 | break; |
8aacddc1 |
745 | case SAVEt_SV: /* scalar reference */ |
ad64d0ec |
746 | value = MUTABLE_SV(SSPOPPTR); |
159b6efe |
747 | gv = MUTABLE_GV(SSPOPPTR); |
7a4c00b4 |
748 | ptr = &GvSV(gv); |
502c6561 |
749 | av = MUTABLE_AV(gv); /* what to refcnt_dec */ |
2053acbf |
750 | restore_sv: |
751 | sv = *(SV**)ptr; |
2053acbf |
752 | *(SV**)ptr = value; |
753 | SvREFCNT_dec(sv); |
754 | PL_localizing = 2; |
755 | SvSETMAGIC(value); |
756 | PL_localizing = 0; |
757 | SvREFCNT_dec(value); |
758 | if (av) /* actually an av, hv or gv */ |
759 | SvREFCNT_dec(av); |
760 | break; |
8aacddc1 |
761 | case SAVEt_GENERIC_PVREF: /* generic pv */ |
f4dd75d9 |
762 | ptr = SSPOPPTR; |
b03d03b0 |
763 | str = (char*)SSPOPPTR; |
f4dd75d9 |
764 | if (*(char**)ptr != str) { |
765 | Safefree(*(char**)ptr); |
766 | *(char**)ptr = str; |
767 | } |
768 | break; |
05ec9bb3 |
769 | case SAVEt_SHARED_PVREF: /* shared pv */ |
770 | str = (char*)SSPOPPTR; |
771 | ptr = SSPOPPTR; |
772 | if (*(char**)ptr != str) { |
5e54c26f |
773 | #ifdef NETWARE |
9ecbcc42 |
774 | PerlMem_free(*(char**)ptr); |
5e54c26f |
775 | #else |
05ec9bb3 |
776 | PerlMemShared_free(*(char**)ptr); |
5e54c26f |
777 | #endif |
05ec9bb3 |
778 | *(char**)ptr = str; |
779 | } |
780 | break; |
8aacddc1 |
781 | case SAVEt_GENERIC_SVREF: /* generic sv */ |
ad64d0ec |
782 | value = MUTABLE_SV(SSPOPPTR); |
b9d12d37 |
783 | ptr = SSPOPPTR; |
f4dd75d9 |
784 | sv = *(SV**)ptr; |
785 | *(SV**)ptr = value; |
786 | SvREFCNT_dec(sv); |
b9d12d37 |
787 | SvREFCNT_dec(value); |
788 | break; |
8aacddc1 |
789 | case SAVEt_AV: /* array reference */ |
502c6561 |
790 | av = MUTABLE_AV(SSPOPPTR); |
159b6efe |
791 | gv = MUTABLE_GV(SSPOPPTR); |
ef8d46e8 |
792 | SvREFCNT_dec(GvAV(gv)); |
8aacddc1 |
793 | GvAV(gv) = av; |
fb73857a |
794 | if (SvMAGICAL(av)) { |
3280af22 |
795 | PL_localizing = 2; |
ad64d0ec |
796 | SvSETMAGIC(MUTABLE_SV(av)); |
3280af22 |
797 | PL_localizing = 0; |
fb73857a |
798 | } |
8aacddc1 |
799 | break; |
800 | case SAVEt_HV: /* hash reference */ |
85fbaab2 |
801 | hv = MUTABLE_HV(SSPOPPTR); |
159b6efe |
802 | gv = MUTABLE_GV(SSPOPPTR); |
ef8d46e8 |
803 | SvREFCNT_dec(GvHV(gv)); |
8aacddc1 |
804 | GvHV(gv) = hv; |
fb73857a |
805 | if (SvMAGICAL(hv)) { |
3280af22 |
806 | PL_localizing = 2; |
ad64d0ec |
807 | SvSETMAGIC(MUTABLE_SV(hv)); |
3280af22 |
808 | PL_localizing = 0; |
fb73857a |
809 | } |
8aacddc1 |
810 | break; |
994d373a |
811 | case SAVEt_INT_SMALL: |
812 | ptr = SSPOPPTR; |
813 | *(int*)ptr = (int)(uv >> SAVE_TIGHT_SHIFT); |
814 | break; |
79072805 |
815 | case SAVEt_INT: /* int reference */ |
816 | ptr = SSPOPPTR; |
817 | *(int*)ptr = (int)SSPOPINT; |
818 | break; |
9febdf04 |
819 | case SAVEt_BOOL: /* bool reference */ |
820 | ptr = SSPOPPTR; |
65504245 |
821 | *(bool*)ptr = cBOOL(uv >> 8); |
9febdf04 |
822 | break; |
89abef21 |
823 | case SAVEt_I32_SMALL: |
824 | ptr = SSPOPPTR; |
825 | *(I32*)ptr = (I32)(uv >> SAVE_TIGHT_SHIFT); |
826 | break; |
79072805 |
827 | case SAVEt_I32: /* I32 reference */ |
828 | ptr = SSPOPPTR; |
3235b7a3 |
829 | #ifdef PERL_DEBUG_READONLY_OPS |
830 | { |
831 | const I32 val = SSPOPINT; |
832 | if (*(I32*)ptr != val) |
833 | *(I32*)ptr = val; |
834 | } |
835 | #else |
79072805 |
836 | *(I32*)ptr = (I32)SSPOPINT; |
3235b7a3 |
837 | #endif |
79072805 |
838 | break; |
839 | case SAVEt_SPTR: /* SV* reference */ |
840 | ptr = SSPOPPTR; |
ad64d0ec |
841 | *(SV**)ptr = MUTABLE_SV(SSPOPPTR); |
79072805 |
842 | break; |
146174a9 |
843 | case SAVEt_VPTR: /* random* reference */ |
85e6fe83 |
844 | case SAVEt_PPTR: /* char* reference */ |
845 | ptr = SSPOPPTR; |
846 | *(char**)ptr = (char*)SSPOPPTR; |
847 | break; |
79072805 |
848 | case SAVEt_HPTR: /* HV* reference */ |
849 | ptr = SSPOPPTR; |
85fbaab2 |
850 | *(HV**)ptr = MUTABLE_HV(SSPOPPTR); |
79072805 |
851 | break; |
852 | case SAVEt_APTR: /* AV* reference */ |
853 | ptr = SSPOPPTR; |
502c6561 |
854 | *(AV**)ptr = MUTABLE_AV(SSPOPPTR); |
79072805 |
855 | break; |
fb73857a |
856 | case SAVEt_GP: /* scalar reference */ |
159b6efe |
857 | gv = MUTABLE_GV(SSPOPPTR); |
8aacddc1 |
858 | gp_free(gv); |
b9e00b79 |
859 | GvGP(gv) = (GP*)SSPOPPTR; |
860 | if (SSPOPINT) |
861 | SvFAKE_on(gv); |
dd69841b |
862 | /* putting a method back into circulation ("local")*/ |
863 | if (GvCVu(gv) && (hv=GvSTASH(gv)) && HvNAME_get(hv)) |
864 | mro_method_changed_in(hv); |
4633a7c4 |
865 | SvREFCNT_dec(gv); |
8aacddc1 |
866 | break; |
8990e307 |
867 | case SAVEt_FREESV: |
868 | ptr = SSPOPPTR; |
ad64d0ec |
869 | SvREFCNT_dec(MUTABLE_SV(ptr)); |
8990e307 |
870 | break; |
26d9b02f |
871 | case SAVEt_MORTALIZESV: |
872 | ptr = SSPOPPTR; |
ad64d0ec |
873 | sv_2mortal(MUTABLE_SV(ptr)); |
26d9b02f |
874 | break; |
8990e307 |
875 | case SAVEt_FREEOP: |
876 | ptr = SSPOPPTR; |
f3548bdc |
877 | ASSERT_CURPAD_LEGAL("SAVEt_FREEOP"); /* XXX DAPM tmp */ |
8990e307 |
878 | op_free((OP*)ptr); |
879 | break; |
880 | case SAVEt_FREEPV: |
881 | ptr = SSPOPPTR; |
1df70142 |
882 | Safefree(ptr); |
8990e307 |
883 | break; |
884 | case SAVEt_CLEARSV: |
cdcdfc56 |
885 | ptr = (void*)&PL_curpad[uv >> SAVE_TIGHT_SHIFT]; |
8990e307 |
886 | sv = *(SV**)ptr; |
dd2155a4 |
887 | |
888 | DEBUG_Xv(PerlIO_printf(Perl_debug_log, |
f3548bdc |
889 | "Pad 0x%"UVxf"[0x%"UVxf"] clearsv: %ld sv=0x%"UVxf"<%"IVdf"> %s\n", |
890 | PTR2UV(PL_comppad), PTR2UV(PL_curpad), |
891 | (long)((SV **)ptr-PL_curpad), PTR2UV(sv), (IV)SvREFCNT(sv), |
dd2155a4 |
892 | (SvREFCNT(sv) <= 1 && !SvOBJECT(sv)) ? "clear" : "abandon" |
893 | )); |
894 | |
bc44cdaf |
895 | /* Can clear pad variable in place? */ |
896 | if (SvREFCNT(sv) <= 1 && !SvOBJECT(sv)) { |
8aacddc1 |
897 | /* |
898 | * if a my variable that was made readonly is going out of |
899 | * scope, we want to remove the readonlyness so that it can |
900 | * go out of scope quietly |
8aacddc1 |
901 | */ |
a26e96df |
902 | if (SvPADMY(sv) && !SvFAKE(sv)) |
8aacddc1 |
903 | SvREADONLY_off(sv); |
904 | |
6fc92669 |
905 | if (SvTHINKFIRST(sv)) |
840a7b70 |
906 | sv_force_normal_flags(sv, SV_IMMEDIATE_UNREF); |
a0d0e21e |
907 | if (SvMAGICAL(sv)) |
908 | mg_free(sv); |
8990e307 |
909 | |
910 | switch (SvTYPE(sv)) { |
911 | case SVt_NULL: |
912 | break; |
913 | case SVt_PVAV: |
502c6561 |
914 | av_clear(MUTABLE_AV(sv)); |
8990e307 |
915 | break; |
916 | case SVt_PVHV: |
85fbaab2 |
917 | hv_clear(MUTABLE_HV(sv)); |
8990e307 |
918 | break; |
919 | case SVt_PVCV: |
cea2e8a9 |
920 | Perl_croak(aTHX_ "panic: leave_scope pad code"); |
8990e307 |
921 | default: |
0c34ef67 |
922 | SvOK_off(sv); |
8990e307 |
923 | break; |
924 | } |
d9d18af6 |
925 | SvPADSTALE_on(sv); /* mark as no longer live */ |
8990e307 |
926 | } |
927 | else { /* Someone has a claim on this, so abandon it. */ |
35a4481c |
928 | const U32 padflags = SvFLAGS(sv) & (SVs_PADMY|SVs_PADTMP); |
8990e307 |
929 | switch (SvTYPE(sv)) { /* Console ourselves with a new value */ |
ad64d0ec |
930 | case SVt_PVAV: *(SV**)ptr = MUTABLE_SV(newAV()); break; |
931 | case SVt_PVHV: *(SV**)ptr = MUTABLE_SV(newHV()); break; |
561b68a9 |
932 | default: *(SV**)ptr = newSV(0); break; |
8990e307 |
933 | } |
53868620 |
934 | SvREFCNT_dec(sv); /* Cast current value to the winds. */ |
d9d18af6 |
935 | /* preserve pad nature, but also mark as not live |
936 | * for any closure capturing */ |
2740392c |
937 | SvFLAGS(*(SV**)ptr) |= padflags | SVs_PADSTALE; |
8990e307 |
938 | } |
939 | break; |
940 | case SAVEt_DELETE: |
941 | ptr = SSPOPPTR; |
85fbaab2 |
942 | hv = MUTABLE_HV(ptr); |
35d4f826 |
943 | i = SSPOPINT; |
8990e307 |
944 | ptr = SSPOPPTR; |
35d4f826 |
945 | (void)hv_delete(hv, (char*)ptr, i, G_DISCARD); |
4e4c362e |
946 | SvREFCNT_dec(hv); |
8aacddc1 |
947 | Safefree(ptr); |
8990e307 |
948 | break; |
c68ec7a9 |
949 | case SAVEt_ADELETE: |
950 | ptr = SSPOPPTR; |
951 | av = MUTABLE_AV(ptr); |
952 | i = SSPOPINT; |
953 | (void)av_delete(av, i, G_DISCARD); |
954 | SvREFCNT_dec(av); |
955 | break; |
146174a9 |
956 | case SAVEt_DESTRUCTOR_X: |
957 | ptr = SSPOPPTR; |
acfe0abc |
958 | (*SSPOPDXPTR)(aTHX_ ptr); |
a0d0e21e |
959 | break; |
960 | case SAVEt_REGCONTEXT: |
e0fa7e2b |
961 | /* regexp must have croaked */ |
455ece5e |
962 | case SAVEt_ALLOC: |
1be36ce0 |
963 | PL_savestack_ix -= uv >> SAVE_TIGHT_SHIFT; |
a0d0e21e |
964 | break; |
55497cff |
965 | case SAVEt_STACK_POS: /* Position on Perl stack */ |
161b7d16 |
966 | i = SSPOPINT; |
3280af22 |
967 | PL_stack_sp = PL_stack_base + i; |
55497cff |
968 | break; |
ea8d6ae1 |
969 | case SAVEt_STACK_CXPOS: /* blk_oldsp on context stack */ |
970 | i = SSPOPINT; |
971 | cxstack[i].blk_oldsp = SSPOPINT; |
972 | break; |
161b7d16 |
973 | case SAVEt_AELEM: /* array element */ |
ad64d0ec |
974 | value = MUTABLE_SV(SSPOPPTR); |
161b7d16 |
975 | i = SSPOPINT; |
502c6561 |
976 | av = MUTABLE_AV(SSPOPPTR); |
658aef79 |
977 | ptr = av_fetch(av,i,1); |
5dd42e15 |
978 | if (!AvREAL(av) && AvREIFY(av)) /* undo reify guard */ |
979 | SvREFCNT_dec(value); |
4e4c362e |
980 | if (ptr) { |
981 | sv = *(SV**)ptr; |
3280af22 |
982 | if (sv && sv != &PL_sv_undef) { |
ad64d0ec |
983 | if (SvTIED_mg((const SV *)av, PERL_MAGIC_tied)) |
b37c2d43 |
984 | SvREFCNT_inc_void_NN(sv); |
4e4c362e |
985 | goto restore_sv; |
986 | } |
987 | } |
988 | SvREFCNT_dec(av); |
989 | SvREFCNT_dec(value); |
990 | break; |
161b7d16 |
991 | case SAVEt_HELEM: /* hash element */ |
ad64d0ec |
992 | value = MUTABLE_SV(SSPOPPTR); |
993 | sv = MUTABLE_SV(SSPOPPTR); |
85fbaab2 |
994 | hv = MUTABLE_HV(SSPOPPTR); |
161b7d16 |
995 | ptr = hv_fetch_ent(hv, sv, 1, 0); |
fd1b367e |
996 | SvREFCNT_dec(sv); |
4e4c362e |
997 | if (ptr) { |
35a4481c |
998 | const SV * const oval = HeVAL((HE*)ptr); |
3280af22 |
999 | if (oval && oval != &PL_sv_undef) { |
4e4c362e |
1000 | ptr = &HeVAL((HE*)ptr); |
ad64d0ec |
1001 | if (SvTIED_mg((const SV *)hv, PERL_MAGIC_tied)) |
b37c2d43 |
1002 | SvREFCNT_inc_void(*(SV**)ptr); |
502c6561 |
1003 | av = MUTABLE_AV(hv); /* what to refcnt_dec */ |
4e4c362e |
1004 | goto restore_sv; |
1005 | } |
1006 | } |
1007 | SvREFCNT_dec(hv); |
4e4c362e |
1008 | SvREFCNT_dec(value); |
1009 | break; |
462e5cf6 |
1010 | case SAVEt_OP: |
533c011a |
1011 | PL_op = (OP*)SSPOPPTR; |
462e5cf6 |
1012 | break; |
25eaa213 |
1013 | case SAVEt_HINTS: |
045ac317 |
1014 | if ((PL_hints & HINT_LOCALIZE_HH) && GvHV(PL_hintgv)) { |
ad64d0ec |
1015 | SvREFCNT_dec(MUTABLE_SV(GvHV(PL_hintgv))); |
045ac317 |
1016 | GvHV(PL_hintgv) = NULL; |
1017 | } |
c28fe1ec |
1018 | Perl_refcounted_he_free(aTHX_ PL_compiling.cop_hints_hash); |
1019 | PL_compiling.cop_hints_hash = (struct refcounted_he *) SSPOPPTR; |
601cee3b |
1020 | *(I32*)&PL_hints = (I32)SSPOPINT; |
dfa41748 |
1021 | if (PL_hints & HINT_LOCALIZE_HH) { |
ad64d0ec |
1022 | SvREFCNT_dec(MUTABLE_SV(GvHV(PL_hintgv))); |
85fbaab2 |
1023 | GvHV(PL_hintgv) = MUTABLE_HV(SSPOPPTR); |
5b9c0671 |
1024 | assert(GvHV(PL_hintgv)); |
1025 | } else if (!GvHV(PL_hintgv)) { |
1026 | /* Need to add a new one manually, else gv_fetchpv() can |
1027 | add one in this code: |
1028 | |
1029 | if (SvTYPE(gv) == SVt_PVGV) { |
1030 | if (add) { |
1031 | GvMULTI_on(gv); |
1032 | gv_init_sv(gv, sv_type); |
1033 | if (*name=='!' && sv_type == SVt_PVHV && len==1) |
1034 | require_errno(gv); |
1035 | } |
1036 | return gv; |
1037 | } |
1038 | |
1039 | and it won't have the magic set. */ |
1040 | |
1041 | HV *const hv = newHV(); |
1042 | hv_magic(hv, NULL, PERL_MAGIC_hints); |
1043 | GvHV(PL_hintgv) = hv; |
dfa41748 |
1044 | } |
5b9c0671 |
1045 | assert(GvHV(PL_hintgv)); |
b3ac6de7 |
1046 | break; |
cb50131a |
1047 | case SAVEt_COMPPAD: |
f3548bdc |
1048 | PL_comppad = (PAD*)SSPOPPTR; |
58ed4fbe |
1049 | if (PL_comppad) |
cb50131a |
1050 | PL_curpad = AvARRAY(PL_comppad); |
1051 | else |
4608196e |
1052 | PL_curpad = NULL; |
cb50131a |
1053 | break; |
09edbca0 |
1054 | case SAVEt_PADSV_AND_MORTALIZE: |
c3564e5c |
1055 | { |
35a4481c |
1056 | const PADOFFSET off = (PADOFFSET)SSPOPLONG; |
09edbca0 |
1057 | SV **svp; |
c3564e5c |
1058 | ptr = SSPOPPTR; |
09edbca0 |
1059 | assert (ptr); |
1060 | svp = AvARRAY((PAD*)ptr) + off; |
1061 | /* This mortalizing used to be done by POPLOOP() via itersave. |
1062 | But as we have all the information here, we can do it here, |
1063 | save even having to have itersave in the struct. */ |
1064 | sv_2mortal(*svp); |
ad64d0ec |
1065 | *svp = MUTABLE_SV(SSPOPPTR); |
c3564e5c |
1066 | } |
1067 | break; |
8b7059b1 |
1068 | case SAVEt_SAVESWITCHSTACK: |
1069 | { |
1070 | dSP; |
502c6561 |
1071 | AV *const t = MUTABLE_AV(SSPOPPTR); |
1072 | AV *const f = MUTABLE_AV(SSPOPPTR); |
8b7059b1 |
1073 | SWITCHSTACK(t,f); |
1074 | PL_curstackinfo->si_stack = f; |
1075 | } |
1076 | break; |
14f338dc |
1077 | case SAVEt_SET_SVFLAGS: |
1078 | { |
35a4481c |
1079 | const U32 val = (U32)SSPOPINT; |
1080 | const U32 mask = (U32)SSPOPINT; |
ad64d0ec |
1081 | sv = MUTABLE_SV(SSPOPPTR); |
14f338dc |
1082 | SvFLAGS(sv) &= ~mask; |
1083 | SvFLAGS(sv) |= val; |
1084 | } |
1085 | break; |
95e06916 |
1086 | |
1087 | /* This would be a mathom, but Perl_save_svref() calls a static |
1088 | function, S_save_scalar_at(), so has to stay in this file. */ |
2053acbf |
1089 | case SAVEt_SVREF: /* scalar reference */ |
ad64d0ec |
1090 | value = MUTABLE_SV(SSPOPPTR); |
2053acbf |
1091 | ptr = SSPOPPTR; |
1092 | av = NULL; /* what to refcnt_dec */ |
1093 | goto restore_sv; |
95e06916 |
1094 | |
1095 | /* These are only saved in mathoms.c */ |
1096 | case SAVEt_NSTAB: |
159b6efe |
1097 | gv = MUTABLE_GV(SSPOPPTR); |
ad64d0ec |
1098 | (void)sv_clear(MUTABLE_SV(gv)); |
95e06916 |
1099 | break; |
2053acbf |
1100 | case SAVEt_LONG: /* long reference */ |
1101 | ptr = SSPOPPTR; |
1102 | *(long*)ptr = (long)SSPOPLONG; |
1103 | break; |
95e06916 |
1104 | case SAVEt_IV: /* IV reference */ |
1105 | ptr = SSPOPPTR; |
1106 | *(IV*)ptr = (IV)SSPOPIV; |
1107 | break; |
1108 | |
2053acbf |
1109 | case SAVEt_I16: /* I16 reference */ |
1110 | ptr = SSPOPPTR; |
c9441fce |
1111 | *(I16*)ptr = (I16)(uv >> 8); |
2053acbf |
1112 | break; |
1113 | case SAVEt_I8: /* I8 reference */ |
1114 | ptr = SSPOPPTR; |
6c61c2d4 |
1115 | *(I8*)ptr = (I8)(uv >> 8); |
2053acbf |
1116 | break; |
2053acbf |
1117 | case SAVEt_DESTRUCTOR: |
1118 | ptr = SSPOPPTR; |
1119 | (*SSPOPDPTR)(ptr); |
1120 | break; |
fc15ae8f |
1121 | case SAVEt_COP_ARYBASE: |
1122 | ptr = SSPOPPTR; |
1123 | i = SSPOPINT; |
1124 | CopARYBASE_set((COP *)ptr, i); |
1125 | break; |
68da3b2f |
1126 | case SAVEt_COMPILE_WARNINGS: |
1127 | ptr = SSPOPPTR; |
72dc9ed5 |
1128 | |
68da3b2f |
1129 | if (!specialWARN(PL_compiling.cop_warnings)) |
1130 | PerlMemShared_free(PL_compiling.cop_warnings); |
72dc9ed5 |
1131 | |
10edeb5d |
1132 | PL_compiling.cop_warnings = (STRLEN*)ptr; |
72dc9ed5 |
1133 | break; |
1ade1aa1 |
1134 | case SAVEt_RE_STATE: |
1135 | { |
1136 | const struct re_save_state *const state |
1137 | = (struct re_save_state *) |
1138 | (PL_savestack + PL_savestack_ix |
1139 | - SAVESTACK_ALLOC_FOR_RE_SAVE_STATE); |
1140 | PL_savestack_ix -= SAVESTACK_ALLOC_FOR_RE_SAVE_STATE; |
1141 | |
1ade1aa1 |
1142 | if (PL_reg_start_tmp != state->re_state_reg_start_tmp) { |
1143 | Safefree(PL_reg_start_tmp); |
1ade1aa1 |
1144 | } |
1ade1aa1 |
1145 | if (PL_reg_poscache != state->re_state_reg_poscache) { |
1146 | Safefree(PL_reg_poscache); |
1ade1aa1 |
1147 | } |
46ab3289 |
1148 | Copy(state, &PL_reg_state, 1, struct re_save_state); |
1ade1aa1 |
1149 | } |
1150 | break; |
7c197c94 |
1151 | case SAVEt_PARSER: |
1152 | ptr = SSPOPPTR; |
1153 | parser_free((yy_parser *) ptr); |
1154 | break; |
79072805 |
1155 | default: |
cea2e8a9 |
1156 | Perl_croak(aTHX_ "panic: leave_scope inconsistency"); |
79072805 |
1157 | } |
1158 | } |
302c0c93 |
1159 | |
1160 | PL_tainted = was; |
f410a211 |
1161 | |
1162 | PERL_ASYNC_CHECK(); |
79072805 |
1163 | } |
8990e307 |
1164 | |
8990e307 |
1165 | void |
864dbfa3 |
1166 | Perl_cx_dump(pTHX_ PERL_CONTEXT *cx) |
8990e307 |
1167 | { |
97aff369 |
1168 | dVAR; |
7918f24d |
1169 | |
1170 | PERL_ARGS_ASSERT_CX_DUMP; |
1171 | |
35ff7856 |
1172 | #ifdef DEBUGGING |
22c35a8c |
1173 | PerlIO_printf(Perl_debug_log, "CX %ld = %s\n", (long)(cx - cxstack), PL_block_type[CxTYPE(cx)]); |
6b35e009 |
1174 | if (CxTYPE(cx) != CXt_SUBST) { |
760ac839 |
1175 | PerlIO_printf(Perl_debug_log, "BLK_OLDSP = %ld\n", (long)cx->blk_oldsp); |
146174a9 |
1176 | PerlIO_printf(Perl_debug_log, "BLK_OLDCOP = 0x%"UVxf"\n", |
1177 | PTR2UV(cx->blk_oldcop)); |
760ac839 |
1178 | PerlIO_printf(Perl_debug_log, "BLK_OLDMARKSP = %ld\n", (long)cx->blk_oldmarksp); |
1179 | PerlIO_printf(Perl_debug_log, "BLK_OLDSCOPESP = %ld\n", (long)cx->blk_oldscopesp); |
146174a9 |
1180 | PerlIO_printf(Perl_debug_log, "BLK_OLDPM = 0x%"UVxf"\n", |
1181 | PTR2UV(cx->blk_oldpm)); |
760ac839 |
1182 | PerlIO_printf(Perl_debug_log, "BLK_GIMME = %s\n", cx->blk_gimme ? "LIST" : "SCALAR"); |
8990e307 |
1183 | } |
6b35e009 |
1184 | switch (CxTYPE(cx)) { |
8990e307 |
1185 | case CXt_NULL: |
1186 | case CXt_BLOCK: |
1187 | break; |
146174a9 |
1188 | case CXt_FORMAT: |
f9c764c5 |
1189 | PerlIO_printf(Perl_debug_log, "BLK_FORMAT.CV = 0x%"UVxf"\n", |
1190 | PTR2UV(cx->blk_format.cv)); |
1191 | PerlIO_printf(Perl_debug_log, "BLK_FORMAT.GV = 0x%"UVxf"\n", |
1192 | PTR2UV(cx->blk_format.gv)); |
1193 | PerlIO_printf(Perl_debug_log, "BLK_FORMAT.DFOUTGV = 0x%"UVxf"\n", |
1194 | PTR2UV(cx->blk_format.dfoutgv)); |
1195 | PerlIO_printf(Perl_debug_log, "BLK_FORMAT.HASARGS = %d\n", |
bafb2adc |
1196 | (int)CxHASARGS(cx)); |
f9c764c5 |
1197 | PerlIO_printf(Perl_debug_log, "BLK_FORMAT.RETOP = 0x%"UVxf"\n", |
1198 | PTR2UV(cx->blk_format.retop)); |
146174a9 |
1199 | break; |
8990e307 |
1200 | case CXt_SUB: |
146174a9 |
1201 | PerlIO_printf(Perl_debug_log, "BLK_SUB.CV = 0x%"UVxf"\n", |
1202 | PTR2UV(cx->blk_sub.cv)); |
760ac839 |
1203 | PerlIO_printf(Perl_debug_log, "BLK_SUB.OLDDEPTH = %ld\n", |
8990e307 |
1204 | (long)cx->blk_sub.olddepth); |
760ac839 |
1205 | PerlIO_printf(Perl_debug_log, "BLK_SUB.HASARGS = %d\n", |
bafb2adc |
1206 | (int)CxHASARGS(cx)); |
1207 | PerlIO_printf(Perl_debug_log, "BLK_SUB.LVAL = %d\n", (int)CxLVAL(cx)); |
f39bc417 |
1208 | PerlIO_printf(Perl_debug_log, "BLK_SUB.RETOP = 0x%"UVxf"\n", |
1209 | PTR2UV(cx->blk_sub.retop)); |
8990e307 |
1210 | break; |
1211 | case CXt_EVAL: |
760ac839 |
1212 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_IN_EVAL = %ld\n", |
85a64632 |
1213 | (long)CxOLD_IN_EVAL(cx)); |
760ac839 |
1214 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_OP_TYPE = %s (%s)\n", |
85a64632 |
1215 | PL_op_name[CxOLD_OP_TYPE(cx)], |
1216 | PL_op_desc[CxOLD_OP_TYPE(cx)]); |
0f79a09d |
1217 | if (cx->blk_eval.old_namesv) |
1218 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_NAME = %s\n", |
aa07b2f6 |
1219 | SvPVX_const(cx->blk_eval.old_namesv)); |
146174a9 |
1220 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_EVAL_ROOT = 0x%"UVxf"\n", |
1221 | PTR2UV(cx->blk_eval.old_eval_root)); |
f39bc417 |
1222 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.RETOP = 0x%"UVxf"\n", |
1223 | PTR2UV(cx->blk_eval.retop)); |
8990e307 |
1224 | break; |
1225 | |
c6fdafd0 |
1226 | case CXt_LOOP_LAZYIV: |
d01136d6 |
1227 | case CXt_LOOP_LAZYSV: |
3b719c58 |
1228 | case CXt_LOOP_FOR: |
1229 | case CXt_LOOP_PLAIN: |
0cbdab38 |
1230 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.LABEL = %s\n", CxLABEL(cx)); |
760ac839 |
1231 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.RESETSP = %ld\n", |
8990e307 |
1232 | (long)cx->blk_loop.resetsp); |
022eaa24 |
1233 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.MY_OP = 0x%"UVxf"\n", |
1234 | PTR2UV(cx->blk_loop.my_op)); |
146174a9 |
1235 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.NEXT_OP = 0x%"UVxf"\n", |
022eaa24 |
1236 | PTR2UV(CX_LOOP_NEXTOP_GET(cx))); |
d01136d6 |
1237 | /* XXX: not accurate for LAZYSV/IV */ |
146174a9 |
1238 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERARY = 0x%"UVxf"\n", |
d01136d6 |
1239 | PTR2UV(cx->blk_loop.state_u.ary.ary)); |
1240 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERIX = %ld\n", |
1241 | (long)cx->blk_loop.state_u.ary.ix); |
146174a9 |
1242 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERVAR = 0x%"UVxf"\n", |
1243 | PTR2UV(CxITERVAR(cx))); |
8990e307 |
1244 | break; |
1245 | |
1246 | case CXt_SUBST: |
760ac839 |
1247 | PerlIO_printf(Perl_debug_log, "SB_ITERS = %ld\n", |
8990e307 |
1248 | (long)cx->sb_iters); |
760ac839 |
1249 | PerlIO_printf(Perl_debug_log, "SB_MAXITERS = %ld\n", |
8990e307 |
1250 | (long)cx->sb_maxiters); |
35ef4773 |
1251 | PerlIO_printf(Perl_debug_log, "SB_RFLAGS = %ld\n", |
1252 | (long)cx->sb_rflags); |
760ac839 |
1253 | PerlIO_printf(Perl_debug_log, "SB_ONCE = %ld\n", |
c5bed6a7 |
1254 | (long)CxONCE(cx)); |
760ac839 |
1255 | PerlIO_printf(Perl_debug_log, "SB_ORIG = %s\n", |
8990e307 |
1256 | cx->sb_orig); |
146174a9 |
1257 | PerlIO_printf(Perl_debug_log, "SB_DSTR = 0x%"UVxf"\n", |
1258 | PTR2UV(cx->sb_dstr)); |
1259 | PerlIO_printf(Perl_debug_log, "SB_TARG = 0x%"UVxf"\n", |
1260 | PTR2UV(cx->sb_targ)); |
1261 | PerlIO_printf(Perl_debug_log, "SB_S = 0x%"UVxf"\n", |
1262 | PTR2UV(cx->sb_s)); |
1263 | PerlIO_printf(Perl_debug_log, "SB_M = 0x%"UVxf"\n", |
1264 | PTR2UV(cx->sb_m)); |
1265 | PerlIO_printf(Perl_debug_log, "SB_STREND = 0x%"UVxf"\n", |
1266 | PTR2UV(cx->sb_strend)); |
1267 | PerlIO_printf(Perl_debug_log, "SB_RXRES = 0x%"UVxf"\n", |
1268 | PTR2UV(cx->sb_rxres)); |
8990e307 |
1269 | break; |
1270 | } |
65e66c80 |
1271 | #else |
96a5add6 |
1272 | PERL_UNUSED_CONTEXT; |
65e66c80 |
1273 | PERL_UNUSED_ARG(cx); |
17c3b450 |
1274 | #endif /* DEBUGGING */ |
35ff7856 |
1275 | } |
241d1a3b |
1276 | |
1277 | /* |
1278 | * Local variables: |
1279 | * c-indentation-style: bsd |
1280 | * c-basic-offset: 4 |
1281 | * indent-tabs-mode: t |
1282 | * End: |
1283 | * |
37442d52 |
1284 | * ex: set ts=8 sts=4 sw=4 noet: |
1285 | */ |