Commit | Line | Data |
a0d0e21e |
1 | /* scope.c |
79072805 |
2 | * |
4bb101f2 |
3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
54ca4ee7 |
4 | * 2000, 2001, 2002, 2003, 2004, 2005, 2006, by Larry Wall and others |
79072805 |
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 | /* |
12 | * "For the fashion of Minas Tirith was such that it was built on seven |
13 | * levels..." |
79072805 |
14 | */ |
15 | |
ddfa107c |
16 | /* This file contains functions to manipulate several of Perl's stacks; |
166f8a29 |
17 | * in particular it contains code to push various types of things onto |
18 | * the savestack, then to pop them off and perform the correct restorative |
19 | * action for each one. This corresponds to the cleanup Perl does at |
20 | * each scope exit. |
21 | */ |
22 | |
79072805 |
23 | #include "EXTERN.h" |
864dbfa3 |
24 | #define PERL_IN_SCOPE_C |
79072805 |
25 | #include "perl.h" |
26 | |
a0d0e21e |
27 | SV** |
864dbfa3 |
28 | Perl_stack_grow(pTHX_ SV **sp, SV **p, int n) |
a0d0e21e |
29 | { |
97aff369 |
30 | dVAR; |
3280af22 |
31 | PL_stack_sp = sp; |
2ce36478 |
32 | #ifndef STRESS_REALLOC |
3280af22 |
33 | av_extend(PL_curstack, (p - PL_stack_base) + (n) + 128); |
2ce36478 |
34 | #else |
6b88bc9c |
35 | av_extend(PL_curstack, (p - PL_stack_base) + (n) + 1); |
2ce36478 |
36 | #endif |
3280af22 |
37 | return PL_stack_sp; |
a0d0e21e |
38 | } |
39 | |
2ce36478 |
40 | #ifndef STRESS_REALLOC |
41 | #define GROW(old) ((old) * 3 / 2) |
42 | #else |
43 | #define GROW(old) ((old) + 1) |
44 | #endif |
45 | |
e336de0d |
46 | PERL_SI * |
864dbfa3 |
47 | Perl_new_stackinfo(pTHX_ I32 stitems, I32 cxitems) |
e336de0d |
48 | { |
97aff369 |
49 | dVAR; |
e336de0d |
50 | PERL_SI *si; |
a02a5408 |
51 | Newx(si, 1, PERL_SI); |
e336de0d |
52 | si->si_stack = newAV(); |
53 | AvREAL_off(si->si_stack); |
54 | av_extend(si->si_stack, stitems > 0 ? stitems-1 : 0); |
3280af22 |
55 | AvALLOC(si->si_stack)[0] = &PL_sv_undef; |
e336de0d |
56 | AvFILLp(si->si_stack) = 0; |
57 | si->si_prev = 0; |
58 | si->si_next = 0; |
59 | si->si_cxmax = cxitems - 1; |
60 | si->si_cxix = -1; |
e788e7d3 |
61 | si->si_type = PERLSI_UNDEF; |
a02a5408 |
62 | Newx(si->si_cxstack, cxitems, PERL_CONTEXT); |
9965345d |
63 | /* Without any kind of initialising PUSHSUBST() |
64 | * in pp_subst() will read uninitialised heap. */ |
65 | Poison(si->si_cxstack, cxitems, PERL_CONTEXT); |
e336de0d |
66 | return si; |
67 | } |
68 | |
79072805 |
69 | I32 |
864dbfa3 |
70 | Perl_cxinc(pTHX) |
79072805 |
71 | { |
97aff369 |
72 | dVAR; |
a3b680e6 |
73 | const IV old_max = cxstack_max; |
2ce36478 |
74 | cxstack_max = GROW(cxstack_max); |
c09156bb |
75 | Renew(cxstack, cxstack_max + 1, PERL_CONTEXT); /* XXX should fix CXINC macro */ |
9965345d |
76 | /* Without any kind of initialising deep enough recursion |
77 | * will end up reading uninitialised PERL_CONTEXTs. */ |
78 | Poison(cxstack + old_max + 1, cxstack_max - old_max, PERL_CONTEXT); |
79072805 |
79 | return cxstack_ix + 1; |
80 | } |
81 | |
79072805 |
82 | void |
864dbfa3 |
83 | Perl_push_scope(pTHX) |
79072805 |
84 | { |
97aff369 |
85 | dVAR; |
3280af22 |
86 | if (PL_scopestack_ix == PL_scopestack_max) { |
87 | PL_scopestack_max = GROW(PL_scopestack_max); |
88 | Renew(PL_scopestack, PL_scopestack_max, I32); |
79072805 |
89 | } |
3280af22 |
90 | PL_scopestack[PL_scopestack_ix++] = PL_savestack_ix; |
79072805 |
91 | |
92 | } |
93 | |
94 | void |
864dbfa3 |
95 | Perl_pop_scope(pTHX) |
79072805 |
96 | { |
97aff369 |
97 | dVAR; |
35a4481c |
98 | const I32 oldsave = PL_scopestack[--PL_scopestack_ix]; |
8990e307 |
99 | LEAVE_SCOPE(oldsave); |
79072805 |
100 | } |
101 | |
102 | void |
864dbfa3 |
103 | Perl_markstack_grow(pTHX) |
a0d0e21e |
104 | { |
97aff369 |
105 | dVAR; |
35a4481c |
106 | const I32 oldmax = PL_markstack_max - PL_markstack; |
107 | const I32 newmax = GROW(oldmax); |
a0d0e21e |
108 | |
3280af22 |
109 | Renew(PL_markstack, newmax, I32); |
110 | PL_markstack_ptr = PL_markstack + oldmax; |
111 | PL_markstack_max = PL_markstack + newmax; |
a0d0e21e |
112 | } |
113 | |
114 | void |
864dbfa3 |
115 | Perl_savestack_grow(pTHX) |
79072805 |
116 | { |
97aff369 |
117 | dVAR; |
8aacddc1 |
118 | PL_savestack_max = GROW(PL_savestack_max) + 4; |
3280af22 |
119 | Renew(PL_savestack, PL_savestack_max, ANY); |
79072805 |
120 | } |
121 | |
4b3c1a47 |
122 | void |
123 | Perl_savestack_grow_cnt(pTHX_ I32 need) |
124 | { |
97aff369 |
125 | dVAR; |
4b3c1a47 |
126 | PL_savestack_max = PL_savestack_ix + need; |
127 | Renew(PL_savestack, PL_savestack_max, ANY); |
128 | } |
129 | |
2ce36478 |
130 | #undef GROW |
131 | |
79072805 |
132 | void |
864dbfa3 |
133 | Perl_tmps_grow(pTHX_ I32 n) |
677b06e3 |
134 | { |
97aff369 |
135 | dVAR; |
677b06e3 |
136 | #ifndef STRESS_REALLOC |
137 | if (n < 128) |
138 | n = (PL_tmps_max < 512) ? 128 : 512; |
139 | #endif |
140 | PL_tmps_max = PL_tmps_ix + n + 1; |
141 | Renew(PL_tmps_stack, PL_tmps_max, SV*); |
142 | } |
143 | |
144 | |
145 | void |
864dbfa3 |
146 | Perl_free_tmps(pTHX) |
79072805 |
147 | { |
97aff369 |
148 | dVAR; |
79072805 |
149 | /* XXX should tmps_floor live in cxstack? */ |
35a4481c |
150 | const I32 myfloor = PL_tmps_floor; |
3280af22 |
151 | while (PL_tmps_ix > myfloor) { /* clean up after last statement */ |
901017d6 |
152 | SV* const sv = PL_tmps_stack[PL_tmps_ix]; |
a0714e2c |
153 | PL_tmps_stack[PL_tmps_ix--] = NULL; |
8aacddc1 |
154 | if (sv && sv != &PL_sv_undef) { |
463ee0b2 |
155 | SvTEMP_off(sv); |
8990e307 |
156 | SvREFCNT_dec(sv); /* note, can modify tmps_ix!!! */ |
463ee0b2 |
157 | } |
79072805 |
158 | } |
159 | } |
160 | |
76e3520e |
161 | STATIC SV * |
cea2e8a9 |
162 | S_save_scalar_at(pTHX_ SV **sptr) |
79072805 |
163 | { |
97aff369 |
164 | dVAR; |
901017d6 |
165 | SV * const osv = *sptr; |
561b68a9 |
166 | register SV * const sv = *sptr = newSV(0); |
79072805 |
167 | |
a0d0e21e |
168 | if (SvTYPE(osv) >= SVt_PVMG && SvMAGIC(osv) && SvTYPE(osv) != SVt_PVGV) { |
a0d0e21e |
169 | if (SvGMAGICAL(osv)) { |
35a4481c |
170 | const bool oldtainted = PL_tainted; |
a0d0e21e |
171 | SvFLAGS(osv) |= (SvFLAGS(osv) & |
8aacddc1 |
172 | (SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
3280af22 |
173 | PL_tainted = oldtainted; |
a0d0e21e |
174 | } |
0cbee0a4 |
175 | mg_localize(osv, sv); |
79072805 |
176 | } |
177 | return sv; |
178 | } |
179 | |
7a4c00b4 |
180 | SV * |
864dbfa3 |
181 | Perl_save_scalar(pTHX_ GV *gv) |
7a4c00b4 |
182 | { |
97aff369 |
183 | dVAR; |
7452cf6a |
184 | SV ** const sptr = &GvSV(gv); |
27cc343c |
185 | PL_localizing = 1; |
0cbee0a4 |
186 | SvGETMAGIC(*sptr); |
27cc343c |
187 | PL_localizing = 0; |
7a4c00b4 |
188 | SSCHECK(3); |
4e4c362e |
189 | SSPUSHPTR(SvREFCNT_inc(gv)); |
190 | SSPUSHPTR(SvREFCNT_inc(*sptr)); |
7a4c00b4 |
191 | SSPUSHINT(SAVEt_SV); |
4e4c362e |
192 | return save_scalar_at(sptr); |
7a4c00b4 |
193 | } |
194 | |
195 | SV* |
864dbfa3 |
196 | Perl_save_svref(pTHX_ SV **sptr) |
7a4c00b4 |
197 | { |
97aff369 |
198 | dVAR; |
0cbee0a4 |
199 | SvGETMAGIC(*sptr); |
7a4c00b4 |
200 | SSCHECK(3); |
201 | SSPUSHPTR(sptr); |
4e4c362e |
202 | SSPUSHPTR(SvREFCNT_inc(*sptr)); |
7a4c00b4 |
203 | SSPUSHINT(SAVEt_SVREF); |
204 | return save_scalar_at(sptr); |
205 | } |
206 | |
f4dd75d9 |
207 | /* Like save_sptr(), but also SvREFCNT_dec()s the new value. Can be used to |
b9d12d37 |
208 | * restore a global SV to its prior contents, freeing new value. */ |
209 | void |
864dbfa3 |
210 | Perl_save_generic_svref(pTHX_ SV **sptr) |
b9d12d37 |
211 | { |
97aff369 |
212 | dVAR; |
b9d12d37 |
213 | SSCHECK(3); |
214 | SSPUSHPTR(sptr); |
215 | SSPUSHPTR(SvREFCNT_inc(*sptr)); |
216 | SSPUSHINT(SAVEt_GENERIC_SVREF); |
217 | } |
218 | |
f4dd75d9 |
219 | /* Like save_pptr(), but also Safefree()s the new value if it is different |
220 | * from the old one. Can be used to restore a global char* to its prior |
221 | * contents, freeing new value. */ |
222 | void |
223 | Perl_save_generic_pvref(pTHX_ char **str) |
224 | { |
97aff369 |
225 | dVAR; |
f4dd75d9 |
226 | SSCHECK(3); |
227 | SSPUSHPTR(str); |
228 | SSPUSHPTR(*str); |
229 | SSPUSHINT(SAVEt_GENERIC_PVREF); |
230 | } |
231 | |
05ec9bb3 |
232 | /* Like save_generic_pvref(), but uses PerlMemShared_free() rather than Safefree(). |
233 | * Can be used to restore a shared global char* to its prior |
234 | * contents, freeing new value. */ |
235 | void |
236 | Perl_save_shared_pvref(pTHX_ char **str) |
237 | { |
97aff369 |
238 | dVAR; |
05ec9bb3 |
239 | SSCHECK(3); |
240 | SSPUSHPTR(str); |
241 | SSPUSHPTR(*str); |
242 | SSPUSHINT(SAVEt_SHARED_PVREF); |
243 | } |
244 | |
14f338dc |
245 | /* set the SvFLAGS specified by mask to the values in val */ |
246 | |
247 | void |
248 | Perl_save_set_svflags(pTHX_ SV* sv, U32 mask, U32 val) |
249 | { |
97aff369 |
250 | dVAR; |
14f338dc |
251 | SSCHECK(4); |
252 | SSPUSHPTR(sv); |
253 | SSPUSHINT(mask); |
254 | SSPUSHINT(val); |
255 | SSPUSHINT(SAVEt_SET_SVFLAGS); |
256 | } |
257 | |
79072805 |
258 | void |
864dbfa3 |
259 | Perl_save_gp(pTHX_ GV *gv, I32 empty) |
79072805 |
260 | { |
97aff369 |
261 | dVAR; |
4b3c1a47 |
262 | SSGROW(6); |
fb73857a |
263 | SSPUSHIV((IV)SvLEN(gv)); |
b162af07 |
264 | SvLEN_set(gv, 0); /* forget that anything was allocated here */ |
fb73857a |
265 | SSPUSHIV((IV)SvCUR(gv)); |
aa07b2f6 |
266 | SSPUSHPTR(SvPVX_const(gv)); |
fb73857a |
267 | SvPOK_off(gv); |
4633a7c4 |
268 | SSPUSHPTR(SvREFCNT_inc(gv)); |
5f05dabc |
269 | SSPUSHPTR(GvGP(gv)); |
79072805 |
270 | SSPUSHINT(SAVEt_GP); |
271 | |
5f05dabc |
272 | if (empty) { |
273 | register GP *gp; |
fae75791 |
274 | |
a02a5408 |
275 | Newxz(gp, 1, GP); |
146174a9 |
276 | |
fae75791 |
277 | if (GvCVu(gv)) |
3280af22 |
278 | PL_sub_generation++; /* taking a method out of circulation */ |
146174a9 |
279 | if (GvIOp(gv) && (IoFLAGS(GvIOp(gv)) & IOf_ARGV)) { |
280 | gp->gp_io = newIO(); |
281 | IoFLAGS(gp->gp_io) |= IOf_ARGV|IOf_START; |
282 | } |
44a8e56a |
283 | GvGP(gv) = gp_ref(gp); |
561b68a9 |
284 | GvSV(gv) = newSV(0); |
146174a9 |
285 | GvLINE(gv) = CopLINE(PL_curcop); |
07409e01 |
286 | /* XXX Ideally this cast would be replaced with a change to const char* |
287 | in the struct. */ |
288 | GvFILE(gv) = CopFILE(PL_curcop) ? CopFILE(PL_curcop) : (char *) ""; |
5f05dabc |
289 | GvEGV(gv) = gv; |
290 | } |
291 | else { |
44a8e56a |
292 | gp_ref(GvGP(gv)); |
5f05dabc |
293 | GvINTRO_on(gv); |
294 | } |
79072805 |
295 | } |
79072805 |
296 | |
79072805 |
297 | AV * |
864dbfa3 |
298 | Perl_save_ary(pTHX_ GV *gv) |
79072805 |
299 | { |
97aff369 |
300 | dVAR; |
901017d6 |
301 | AV * const oav = GvAVn(gv); |
67a38de0 |
302 | AV *av; |
fb73857a |
303 | |
67a38de0 |
304 | if (!AvREAL(oav) && AvREIFY(oav)) |
305 | av_reify(oav); |
79072805 |
306 | SSCHECK(3); |
307 | SSPUSHPTR(gv); |
67a38de0 |
308 | SSPUSHPTR(oav); |
79072805 |
309 | SSPUSHINT(SAVEt_AV); |
310 | |
311 | GvAV(gv) = Null(AV*); |
fb73857a |
312 | av = GvAVn(gv); |
0cbee0a4 |
313 | if (SvMAGIC(oav)) |
314 | mg_localize((SV*)oav, (SV*)av); |
fb73857a |
315 | return av; |
79072805 |
316 | } |
317 | |
318 | HV * |
864dbfa3 |
319 | Perl_save_hash(pTHX_ GV *gv) |
79072805 |
320 | { |
97aff369 |
321 | dVAR; |
fb73857a |
322 | HV *ohv, *hv; |
323 | |
79072805 |
324 | SSCHECK(3); |
325 | SSPUSHPTR(gv); |
fb73857a |
326 | SSPUSHPTR(ohv = GvHVn(gv)); |
79072805 |
327 | SSPUSHINT(SAVEt_HV); |
328 | |
329 | GvHV(gv) = Null(HV*); |
fb73857a |
330 | hv = GvHVn(gv); |
0cbee0a4 |
331 | if (SvMAGIC(ohv)) |
332 | mg_localize((SV*)ohv, (SV*)hv); |
fb73857a |
333 | return hv; |
79072805 |
334 | } |
335 | |
336 | void |
864dbfa3 |
337 | Perl_save_item(pTHX_ register SV *item) |
79072805 |
338 | { |
97aff369 |
339 | dVAR; |
901017d6 |
340 | register SV * const sv = newSVsv(item); |
79072805 |
341 | |
342 | SSCHECK(3); |
343 | SSPUSHPTR(item); /* remember the pointer */ |
79072805 |
344 | SSPUSHPTR(sv); /* remember the value */ |
345 | SSPUSHINT(SAVEt_ITEM); |
346 | } |
347 | |
348 | void |
864dbfa3 |
349 | Perl_save_int(pTHX_ int *intp) |
79072805 |
350 | { |
97aff369 |
351 | dVAR; |
79072805 |
352 | SSCHECK(3); |
353 | SSPUSHINT(*intp); |
354 | SSPUSHPTR(intp); |
355 | SSPUSHINT(SAVEt_INT); |
356 | } |
357 | |
358 | void |
864dbfa3 |
359 | Perl_save_long(pTHX_ long int *longp) |
85e6fe83 |
360 | { |
97aff369 |
361 | dVAR; |
85e6fe83 |
362 | SSCHECK(3); |
363 | SSPUSHLONG(*longp); |
364 | SSPUSHPTR(longp); |
365 | SSPUSHINT(SAVEt_LONG); |
366 | } |
367 | |
368 | void |
9febdf04 |
369 | Perl_save_bool(pTHX_ bool *boolp) |
370 | { |
97aff369 |
371 | dVAR; |
9febdf04 |
372 | SSCHECK(3); |
373 | SSPUSHBOOL(*boolp); |
374 | SSPUSHPTR(boolp); |
375 | SSPUSHINT(SAVEt_BOOL); |
376 | } |
377 | |
378 | void |
864dbfa3 |
379 | Perl_save_I32(pTHX_ I32 *intp) |
79072805 |
380 | { |
97aff369 |
381 | dVAR; |
79072805 |
382 | SSCHECK(3); |
383 | SSPUSHINT(*intp); |
384 | SSPUSHPTR(intp); |
385 | SSPUSHINT(SAVEt_I32); |
386 | } |
387 | |
a0d0e21e |
388 | void |
864dbfa3 |
389 | Perl_save_I16(pTHX_ I16 *intp) |
55497cff |
390 | { |
97aff369 |
391 | dVAR; |
55497cff |
392 | SSCHECK(3); |
393 | SSPUSHINT(*intp); |
394 | SSPUSHPTR(intp); |
395 | SSPUSHINT(SAVEt_I16); |
396 | } |
397 | |
398 | void |
146174a9 |
399 | Perl_save_I8(pTHX_ I8 *bytep) |
400 | { |
97aff369 |
401 | dVAR; |
146174a9 |
402 | SSCHECK(3); |
403 | SSPUSHINT(*bytep); |
404 | SSPUSHPTR(bytep); |
405 | SSPUSHINT(SAVEt_I8); |
406 | } |
407 | |
408 | void |
864dbfa3 |
409 | Perl_save_iv(pTHX_ IV *ivp) |
a0d0e21e |
410 | { |
97aff369 |
411 | dVAR; |
a0d0e21e |
412 | SSCHECK(3); |
4aa0a1f7 |
413 | SSPUSHIV(*ivp); |
a0d0e21e |
414 | SSPUSHPTR(ivp); |
415 | SSPUSHINT(SAVEt_IV); |
416 | } |
417 | |
85e6fe83 |
418 | /* Cannot use save_sptr() to store a char* since the SV** cast will |
419 | * force word-alignment and we'll miss the pointer. |
420 | */ |
421 | void |
864dbfa3 |
422 | Perl_save_pptr(pTHX_ char **pptr) |
85e6fe83 |
423 | { |
97aff369 |
424 | dVAR; |
85e6fe83 |
425 | SSCHECK(3); |
426 | SSPUSHPTR(*pptr); |
427 | SSPUSHPTR(pptr); |
428 | SSPUSHINT(SAVEt_PPTR); |
429 | } |
430 | |
79072805 |
431 | void |
146174a9 |
432 | Perl_save_vptr(pTHX_ void *ptr) |
433 | { |
97aff369 |
434 | dVAR; |
146174a9 |
435 | SSCHECK(3); |
436 | SSPUSHPTR(*(char**)ptr); |
437 | SSPUSHPTR(ptr); |
438 | SSPUSHINT(SAVEt_VPTR); |
439 | } |
440 | |
441 | void |
864dbfa3 |
442 | Perl_save_sptr(pTHX_ SV **sptr) |
79072805 |
443 | { |
97aff369 |
444 | dVAR; |
79072805 |
445 | SSCHECK(3); |
446 | SSPUSHPTR(*sptr); |
447 | SSPUSHPTR(sptr); |
448 | SSPUSHINT(SAVEt_SPTR); |
449 | } |
450 | |
c3564e5c |
451 | void |
452 | Perl_save_padsv(pTHX_ PADOFFSET off) |
453 | { |
97aff369 |
454 | dVAR; |
c3564e5c |
455 | SSCHECK(4); |
f3548bdc |
456 | ASSERT_CURPAD_ACTIVE("save_padsv"); |
c3564e5c |
457 | SSPUSHPTR(PL_curpad[off]); |
f3548bdc |
458 | SSPUSHPTR(PL_comppad); |
c3564e5c |
459 | SSPUSHLONG((long)off); |
460 | SSPUSHINT(SAVEt_PADSV); |
461 | } |
462 | |
79072805 |
463 | void |
864dbfa3 |
464 | Perl_save_nogv(pTHX_ GV *gv) |
79072805 |
465 | { |
97aff369 |
466 | dVAR; |
79072805 |
467 | SSCHECK(2); |
468 | SSPUSHPTR(gv); |
469 | SSPUSHINT(SAVEt_NSTAB); |
470 | } |
471 | |
472 | void |
864dbfa3 |
473 | Perl_save_hptr(pTHX_ HV **hptr) |
79072805 |
474 | { |
97aff369 |
475 | dVAR; |
79072805 |
476 | SSCHECK(3); |
85e6fe83 |
477 | SSPUSHPTR(*hptr); |
79072805 |
478 | SSPUSHPTR(hptr); |
479 | SSPUSHINT(SAVEt_HPTR); |
480 | } |
481 | |
482 | void |
864dbfa3 |
483 | Perl_save_aptr(pTHX_ AV **aptr) |
79072805 |
484 | { |
97aff369 |
485 | dVAR; |
79072805 |
486 | SSCHECK(3); |
85e6fe83 |
487 | SSPUSHPTR(*aptr); |
79072805 |
488 | SSPUSHPTR(aptr); |
489 | SSPUSHINT(SAVEt_APTR); |
490 | } |
491 | |
492 | void |
864dbfa3 |
493 | Perl_save_freesv(pTHX_ SV *sv) |
8990e307 |
494 | { |
97aff369 |
495 | dVAR; |
8990e307 |
496 | SSCHECK(2); |
497 | SSPUSHPTR(sv); |
498 | SSPUSHINT(SAVEt_FREESV); |
499 | } |
500 | |
501 | void |
26d9b02f |
502 | Perl_save_mortalizesv(pTHX_ SV *sv) |
503 | { |
97aff369 |
504 | dVAR; |
26d9b02f |
505 | SSCHECK(2); |
506 | SSPUSHPTR(sv); |
507 | SSPUSHINT(SAVEt_MORTALIZESV); |
508 | } |
509 | |
510 | void |
864dbfa3 |
511 | Perl_save_freeop(pTHX_ OP *o) |
8990e307 |
512 | { |
97aff369 |
513 | dVAR; |
8990e307 |
514 | SSCHECK(2); |
11343788 |
515 | SSPUSHPTR(o); |
8990e307 |
516 | SSPUSHINT(SAVEt_FREEOP); |
517 | } |
518 | |
519 | void |
864dbfa3 |
520 | Perl_save_freepv(pTHX_ char *pv) |
8990e307 |
521 | { |
97aff369 |
522 | dVAR; |
8990e307 |
523 | SSCHECK(2); |
524 | SSPUSHPTR(pv); |
525 | SSPUSHINT(SAVEt_FREEPV); |
526 | } |
527 | |
528 | void |
864dbfa3 |
529 | Perl_save_clearsv(pTHX_ SV **svp) |
8990e307 |
530 | { |
97aff369 |
531 | dVAR; |
f3548bdc |
532 | ASSERT_CURPAD_ACTIVE("save_clearsv"); |
8990e307 |
533 | SSCHECK(2); |
3280af22 |
534 | SSPUSHLONG((long)(svp-PL_curpad)); |
8990e307 |
535 | SSPUSHINT(SAVEt_CLEARSV); |
d9d18af6 |
536 | SvPADSTALE_off(*svp); /* mark lexical as active */ |
8990e307 |
537 | } |
538 | |
539 | void |
864dbfa3 |
540 | Perl_save_delete(pTHX_ HV *hv, char *key, I32 klen) |
8990e307 |
541 | { |
97aff369 |
542 | dVAR; |
8990e307 |
543 | SSCHECK(4); |
544 | SSPUSHINT(klen); |
545 | SSPUSHPTR(key); |
4e4c362e |
546 | SSPUSHPTR(SvREFCNT_inc(hv)); |
8990e307 |
547 | SSPUSHINT(SAVEt_DELETE); |
548 | } |
549 | |
550 | void |
864dbfa3 |
551 | Perl_save_list(pTHX_ register SV **sarg, I32 maxsarg) |
79072805 |
552 | { |
97aff369 |
553 | dVAR; |
79072805 |
554 | register I32 i; |
555 | |
79072805 |
556 | for (i = 1; i <= maxsarg; i++) { |
561b68a9 |
557 | register SV * const sv = newSV(0); |
79072805 |
558 | sv_setsv(sv,sarg[i]); |
f46d017c |
559 | SSCHECK(3); |
560 | SSPUSHPTR(sarg[i]); /* remember the pointer */ |
79072805 |
561 | SSPUSHPTR(sv); /* remember the value */ |
562 | SSPUSHINT(SAVEt_ITEM); |
563 | } |
564 | } |
565 | |
566 | void |
146174a9 |
567 | Perl_save_destructor(pTHX_ DESTRUCTORFUNC_NOCONTEXT_t f, void* p) |
a0d0e21e |
568 | { |
97aff369 |
569 | dVAR; |
a0d0e21e |
570 | SSCHECK(3); |
571 | SSPUSHDPTR(f); |
572 | SSPUSHPTR(p); |
573 | SSPUSHINT(SAVEt_DESTRUCTOR); |
574 | } |
575 | |
576 | void |
146174a9 |
577 | Perl_save_destructor_x(pTHX_ DESTRUCTORFUNC_t f, void* p) |
578 | { |
97aff369 |
579 | dVAR; |
146174a9 |
580 | SSCHECK(3); |
581 | SSPUSHDXPTR(f); |
582 | SSPUSHPTR(p); |
583 | SSPUSHINT(SAVEt_DESTRUCTOR_X); |
584 | } |
585 | |
586 | void |
35a4481c |
587 | Perl_save_aelem(pTHX_ const AV *av, I32 idx, SV **sptr) |
4e4c362e |
588 | { |
97aff369 |
589 | dVAR; |
bfc4de9f |
590 | SV *sv; |
0cbee0a4 |
591 | SvGETMAGIC(*sptr); |
4e4c362e |
592 | SSCHECK(4); |
593 | SSPUSHPTR(SvREFCNT_inc(av)); |
594 | SSPUSHINT(idx); |
595 | SSPUSHPTR(SvREFCNT_inc(*sptr)); |
596 | SSPUSHINT(SAVEt_AELEM); |
5dd42e15 |
597 | /* if it gets reified later, the restore will have the wrong refcnt */ |
598 | if (!AvREAL(av) && AvREIFY(av)) |
7fc63493 |
599 | (void)SvREFCNT_inc(*sptr); |
4e4c362e |
600 | save_scalar_at(sptr); |
bfc4de9f |
601 | sv = *sptr; |
602 | /* If we're localizing a tied array element, this new sv |
603 | * won't actually be stored in the array - so it won't get |
604 | * reaped when the localize ends. Ensure it gets reaped by |
605 | * mortifying it instead. DAPM */ |
606 | if (SvTIED_mg(sv, PERL_MAGIC_tiedelem)) |
607 | sv_2mortal(sv); |
4e4c362e |
608 | } |
609 | |
610 | void |
e1ec3a88 |
611 | Perl_save_helem(pTHX_ HV *hv, SV *key, SV **sptr) |
4e4c362e |
612 | { |
97aff369 |
613 | dVAR; |
bfc4de9f |
614 | SV *sv; |
0cbee0a4 |
615 | SvGETMAGIC(*sptr); |
4e4c362e |
616 | SSCHECK(4); |
617 | SSPUSHPTR(SvREFCNT_inc(hv)); |
618 | SSPUSHPTR(SvREFCNT_inc(key)); |
619 | SSPUSHPTR(SvREFCNT_inc(*sptr)); |
620 | SSPUSHINT(SAVEt_HELEM); |
621 | save_scalar_at(sptr); |
bfc4de9f |
622 | sv = *sptr; |
623 | /* If we're localizing a tied hash element, this new sv |
624 | * won't actually be stored in the hash - so it won't get |
625 | * reaped when the localize ends. Ensure it gets reaped by |
626 | * mortifying it instead. DAPM */ |
627 | if (SvTIED_mg(sv, PERL_MAGIC_tiedelem)) |
628 | sv_2mortal(sv); |
4e4c362e |
629 | } |
630 | |
631 | void |
864dbfa3 |
632 | Perl_save_op(pTHX) |
462e5cf6 |
633 | { |
97aff369 |
634 | dVAR; |
462e5cf6 |
635 | SSCHECK(2); |
533c011a |
636 | SSPUSHPTR(PL_op); |
462e5cf6 |
637 | SSPUSHINT(SAVEt_OP); |
638 | } |
639 | |
455ece5e |
640 | I32 |
864dbfa3 |
641 | Perl_save_alloc(pTHX_ I32 size, I32 pad) |
455ece5e |
642 | { |
97aff369 |
643 | dVAR; |
35a4481c |
644 | register const I32 start = pad + ((char*)&PL_savestack[PL_savestack_ix] |
8aacddc1 |
645 | - (char*)PL_savestack); |
35a4481c |
646 | register const I32 elems = 1 + ((size + pad - 1) / sizeof(*PL_savestack)); |
455ece5e |
647 | |
648 | /* SSCHECK may not be good enough */ |
649 | while (PL_savestack_ix + elems + 2 > PL_savestack_max) |
8aacddc1 |
650 | savestack_grow(); |
455ece5e |
651 | |
652 | PL_savestack_ix += elems; |
653 | SSPUSHINT(elems); |
654 | SSPUSHINT(SAVEt_ALLOC); |
655 | return start; |
656 | } |
657 | |
462e5cf6 |
658 | void |
864dbfa3 |
659 | Perl_leave_scope(pTHX_ I32 base) |
79072805 |
660 | { |
97aff369 |
661 | dVAR; |
79072805 |
662 | register SV *sv; |
663 | register SV *value; |
664 | register GV *gv; |
665 | register AV *av; |
666 | register HV *hv; |
20454177 |
667 | void* ptr; |
f4dd75d9 |
668 | register char* str; |
161b7d16 |
669 | I32 i; |
79072805 |
670 | |
671 | if (base < -1) |
cea2e8a9 |
672 | Perl_croak(aTHX_ "panic: corrupt saved stack index"); |
3280af22 |
673 | while (PL_savestack_ix > base) { |
79072805 |
674 | switch (SSPOPINT) { |
675 | case SAVEt_ITEM: /* normal string */ |
676 | value = (SV*)SSPOPPTR; |
677 | sv = (SV*)SSPOPPTR; |
678 | sv_replace(sv,value); |
3280af22 |
679 | PL_localizing = 2; |
79072805 |
680 | SvSETMAGIC(sv); |
3280af22 |
681 | PL_localizing = 0; |
79072805 |
682 | break; |
8aacddc1 |
683 | case SAVEt_SV: /* scalar reference */ |
79072805 |
684 | value = (SV*)SSPOPPTR; |
685 | gv = (GV*)SSPOPPTR; |
7a4c00b4 |
686 | ptr = &GvSV(gv); |
5dd42e15 |
687 | av = (AV*)gv; /* what to refcnt_dec */ |
7a4c00b4 |
688 | goto restore_sv; |
8aacddc1 |
689 | case SAVEt_GENERIC_PVREF: /* generic pv */ |
f4dd75d9 |
690 | str = (char*)SSPOPPTR; |
691 | ptr = SSPOPPTR; |
692 | if (*(char**)ptr != str) { |
693 | Safefree(*(char**)ptr); |
694 | *(char**)ptr = str; |
695 | } |
696 | break; |
05ec9bb3 |
697 | case SAVEt_SHARED_PVREF: /* shared pv */ |
698 | str = (char*)SSPOPPTR; |
699 | ptr = SSPOPPTR; |
700 | if (*(char**)ptr != str) { |
5e54c26f |
701 | #ifdef NETWARE |
9ecbcc42 |
702 | PerlMem_free(*(char**)ptr); |
5e54c26f |
703 | #else |
05ec9bb3 |
704 | PerlMemShared_free(*(char**)ptr); |
5e54c26f |
705 | #endif |
05ec9bb3 |
706 | *(char**)ptr = str; |
707 | } |
708 | break; |
8aacddc1 |
709 | case SAVEt_GENERIC_SVREF: /* generic sv */ |
b9d12d37 |
710 | value = (SV*)SSPOPPTR; |
711 | ptr = SSPOPPTR; |
f4dd75d9 |
712 | sv = *(SV**)ptr; |
713 | *(SV**)ptr = value; |
714 | SvREFCNT_dec(sv); |
b9d12d37 |
715 | SvREFCNT_dec(value); |
716 | break; |
8aacddc1 |
717 | case SAVEt_SVREF: /* scalar reference */ |
7a4c00b4 |
718 | value = (SV*)SSPOPPTR; |
79072805 |
719 | ptr = SSPOPPTR; |
7d49f689 |
720 | av = NULL; /* what to refcnt_dec */ |
7a4c00b4 |
721 | restore_sv: |
79072805 |
722 | sv = *(SV**)ptr; |
146174a9 |
723 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
54b9620d |
724 | "restore svref: %p %p:%s -> %p:%s\n", |
8aacddc1 |
725 | ptr, sv, SvPEEK(sv), value, SvPEEK(value))); |
a0d0e21e |
726 | *(SV**)ptr = value; |
db733481 |
727 | SvREFCNT_dec(sv); |
3280af22 |
728 | PL_localizing = 2; |
a0d0e21e |
729 | SvSETMAGIC(value); |
3280af22 |
730 | PL_localizing = 0; |
4e4c362e |
731 | SvREFCNT_dec(value); |
5dd42e15 |
732 | if (av) /* actually an av, hv or gv */ |
733 | SvREFCNT_dec(av); |
8aacddc1 |
734 | break; |
735 | case SAVEt_AV: /* array reference */ |
79072805 |
736 | av = (AV*)SSPOPPTR; |
737 | gv = (GV*)SSPOPPTR; |
fb73857a |
738 | if (GvAV(gv)) { |
35a4481c |
739 | AV * const goner = GvAV(gv); |
404a4710 |
740 | /* FIXME - this is a temporary hack until we work out what |
741 | the correct behaviour for magic should be. */ |
742 | sv_unmagic((SV*)goner, PERL_MAGIC_arylen_p); |
b162af07 |
743 | SvMAGIC_set(av, SvMAGIC(goner)); |
32da55ab |
744 | SvFLAGS((SV*)av) |= SvMAGICAL(goner); |
fb73857a |
745 | SvMAGICAL_off(goner); |
b162af07 |
746 | SvMAGIC_set(goner, NULL); |
fb73857a |
747 | SvREFCNT_dec(goner); |
748 | } |
8aacddc1 |
749 | GvAV(gv) = av; |
fb73857a |
750 | if (SvMAGICAL(av)) { |
3280af22 |
751 | PL_localizing = 2; |
fb73857a |
752 | SvSETMAGIC((SV*)av); |
3280af22 |
753 | PL_localizing = 0; |
fb73857a |
754 | } |
8aacddc1 |
755 | break; |
756 | case SAVEt_HV: /* hash reference */ |
79072805 |
757 | hv = (HV*)SSPOPPTR; |
758 | gv = (GV*)SSPOPPTR; |
fb73857a |
759 | if (GvHV(gv)) { |
35a4481c |
760 | HV * const goner = GvHV(gv); |
b162af07 |
761 | SvMAGIC_set(hv, SvMAGIC(goner)); |
fb73857a |
762 | SvFLAGS(hv) |= SvMAGICAL(goner); |
763 | SvMAGICAL_off(goner); |
b162af07 |
764 | SvMAGIC_set(goner, NULL); |
fb73857a |
765 | SvREFCNT_dec(goner); |
766 | } |
8aacddc1 |
767 | GvHV(gv) = hv; |
fb73857a |
768 | if (SvMAGICAL(hv)) { |
3280af22 |
769 | PL_localizing = 2; |
fb73857a |
770 | SvSETMAGIC((SV*)hv); |
3280af22 |
771 | PL_localizing = 0; |
fb73857a |
772 | } |
8aacddc1 |
773 | break; |
79072805 |
774 | case SAVEt_INT: /* int reference */ |
775 | ptr = SSPOPPTR; |
776 | *(int*)ptr = (int)SSPOPINT; |
777 | break; |
85e6fe83 |
778 | case SAVEt_LONG: /* long reference */ |
779 | ptr = SSPOPPTR; |
780 | *(long*)ptr = (long)SSPOPLONG; |
781 | break; |
9febdf04 |
782 | case SAVEt_BOOL: /* bool reference */ |
783 | ptr = SSPOPPTR; |
784 | *(bool*)ptr = (bool)SSPOPBOOL; |
785 | break; |
79072805 |
786 | case SAVEt_I32: /* I32 reference */ |
787 | ptr = SSPOPPTR; |
788 | *(I32*)ptr = (I32)SSPOPINT; |
789 | break; |
55497cff |
790 | case SAVEt_I16: /* I16 reference */ |
791 | ptr = SSPOPPTR; |
792 | *(I16*)ptr = (I16)SSPOPINT; |
793 | break; |
146174a9 |
794 | case SAVEt_I8: /* I8 reference */ |
795 | ptr = SSPOPPTR; |
796 | *(I8*)ptr = (I8)SSPOPINT; |
797 | break; |
a0d0e21e |
798 | case SAVEt_IV: /* IV reference */ |
799 | ptr = SSPOPPTR; |
800 | *(IV*)ptr = (IV)SSPOPIV; |
801 | break; |
79072805 |
802 | case SAVEt_SPTR: /* SV* reference */ |
803 | ptr = SSPOPPTR; |
804 | *(SV**)ptr = (SV*)SSPOPPTR; |
805 | break; |
146174a9 |
806 | case SAVEt_VPTR: /* random* reference */ |
85e6fe83 |
807 | case SAVEt_PPTR: /* char* reference */ |
808 | ptr = SSPOPPTR; |
809 | *(char**)ptr = (char*)SSPOPPTR; |
810 | break; |
79072805 |
811 | case SAVEt_HPTR: /* HV* reference */ |
812 | ptr = SSPOPPTR; |
813 | *(HV**)ptr = (HV*)SSPOPPTR; |
814 | break; |
815 | case SAVEt_APTR: /* AV* reference */ |
816 | ptr = SSPOPPTR; |
817 | *(AV**)ptr = (AV*)SSPOPPTR; |
818 | break; |
819 | case SAVEt_NSTAB: |
820 | gv = (GV*)SSPOPPTR; |
1f96a9ed |
821 | (void)sv_clear((SV*)gv); |
79072805 |
822 | break; |
fb73857a |
823 | case SAVEt_GP: /* scalar reference */ |
79072805 |
824 | ptr = SSPOPPTR; |
825 | gv = (GV*)SSPOPPTR; |
aa07b2f6 |
826 | if (SvPVX_const(gv) && SvLEN(gv) > 0) { |
94010e71 |
827 | Safefree(SvPVX_mutable(gv)); |
8aacddc1 |
828 | } |
f880fe2f |
829 | SvPV_set(gv, (char *)SSPOPPTR); |
b162af07 |
830 | SvCUR_set(gv, (STRLEN)SSPOPIV); |
831 | SvLEN_set(gv, (STRLEN)SSPOPIV); |
8aacddc1 |
832 | gp_free(gv); |
833 | GvGP(gv) = (GP*)ptr; |
fae75791 |
834 | if (GvCVu(gv)) |
3280af22 |
835 | PL_sub_generation++; /* putting a method back into circulation */ |
4633a7c4 |
836 | SvREFCNT_dec(gv); |
8aacddc1 |
837 | break; |
8990e307 |
838 | case SAVEt_FREESV: |
839 | ptr = SSPOPPTR; |
840 | SvREFCNT_dec((SV*)ptr); |
841 | break; |
26d9b02f |
842 | case SAVEt_MORTALIZESV: |
843 | ptr = SSPOPPTR; |
844 | sv_2mortal((SV*)ptr); |
845 | break; |
8990e307 |
846 | case SAVEt_FREEOP: |
847 | ptr = SSPOPPTR; |
f3548bdc |
848 | ASSERT_CURPAD_LEGAL("SAVEt_FREEOP"); /* XXX DAPM tmp */ |
8990e307 |
849 | op_free((OP*)ptr); |
850 | break; |
851 | case SAVEt_FREEPV: |
852 | ptr = SSPOPPTR; |
1df70142 |
853 | Safefree(ptr); |
8990e307 |
854 | break; |
855 | case SAVEt_CLEARSV: |
3280af22 |
856 | ptr = (void*)&PL_curpad[SSPOPLONG]; |
8990e307 |
857 | sv = *(SV**)ptr; |
dd2155a4 |
858 | |
859 | DEBUG_Xv(PerlIO_printf(Perl_debug_log, |
f3548bdc |
860 | "Pad 0x%"UVxf"[0x%"UVxf"] clearsv: %ld sv=0x%"UVxf"<%"IVdf"> %s\n", |
861 | PTR2UV(PL_comppad), PTR2UV(PL_curpad), |
862 | (long)((SV **)ptr-PL_curpad), PTR2UV(sv), (IV)SvREFCNT(sv), |
dd2155a4 |
863 | (SvREFCNT(sv) <= 1 && !SvOBJECT(sv)) ? "clear" : "abandon" |
864 | )); |
865 | |
bc44cdaf |
866 | /* Can clear pad variable in place? */ |
867 | if (SvREFCNT(sv) <= 1 && !SvOBJECT(sv)) { |
8aacddc1 |
868 | /* |
869 | * if a my variable that was made readonly is going out of |
870 | * scope, we want to remove the readonlyness so that it can |
871 | * go out of scope quietly |
8aacddc1 |
872 | */ |
a26e96df |
873 | if (SvPADMY(sv) && !SvFAKE(sv)) |
8aacddc1 |
874 | SvREADONLY_off(sv); |
875 | |
6fc92669 |
876 | if (SvTHINKFIRST(sv)) |
840a7b70 |
877 | sv_force_normal_flags(sv, SV_IMMEDIATE_UNREF); |
a0d0e21e |
878 | if (SvMAGICAL(sv)) |
879 | mg_free(sv); |
8990e307 |
880 | |
881 | switch (SvTYPE(sv)) { |
882 | case SVt_NULL: |
883 | break; |
884 | case SVt_PVAV: |
44a8e56a |
885 | av_clear((AV*)sv); |
8990e307 |
886 | break; |
887 | case SVt_PVHV: |
44a8e56a |
888 | hv_clear((HV*)sv); |
8990e307 |
889 | break; |
890 | case SVt_PVCV: |
cea2e8a9 |
891 | Perl_croak(aTHX_ "panic: leave_scope pad code"); |
8990e307 |
892 | default: |
0c34ef67 |
893 | SvOK_off(sv); |
8990e307 |
894 | break; |
895 | } |
d9d18af6 |
896 | SvPADSTALE_on(sv); /* mark as no longer live */ |
8990e307 |
897 | } |
898 | else { /* Someone has a claim on this, so abandon it. */ |
35a4481c |
899 | const U32 padflags = SvFLAGS(sv) & (SVs_PADMY|SVs_PADTMP); |
8990e307 |
900 | switch (SvTYPE(sv)) { /* Console ourselves with a new value */ |
901 | case SVt_PVAV: *(SV**)ptr = (SV*)newAV(); break; |
902 | case SVt_PVHV: *(SV**)ptr = (SV*)newHV(); break; |
561b68a9 |
903 | default: *(SV**)ptr = newSV(0); break; |
8990e307 |
904 | } |
53868620 |
905 | SvREFCNT_dec(sv); /* Cast current value to the winds. */ |
d9d18af6 |
906 | /* preserve pad nature, but also mark as not live |
907 | * for any closure capturing */ |
2740392c |
908 | SvFLAGS(*(SV**)ptr) |= padflags | SVs_PADSTALE; |
8990e307 |
909 | } |
910 | break; |
911 | case SAVEt_DELETE: |
912 | ptr = SSPOPPTR; |
913 | hv = (HV*)ptr; |
914 | ptr = SSPOPPTR; |
748a9306 |
915 | (void)hv_delete(hv, (char*)ptr, (U32)SSPOPINT, G_DISCARD); |
4e4c362e |
916 | SvREFCNT_dec(hv); |
8aacddc1 |
917 | Safefree(ptr); |
8990e307 |
918 | break; |
a0d0e21e |
919 | case SAVEt_DESTRUCTOR: |
920 | ptr = SSPOPPTR; |
146174a9 |
921 | (*SSPOPDPTR)(ptr); |
922 | break; |
923 | case SAVEt_DESTRUCTOR_X: |
924 | ptr = SSPOPPTR; |
acfe0abc |
925 | (*SSPOPDXPTR)(aTHX_ ptr); |
a0d0e21e |
926 | break; |
927 | case SAVEt_REGCONTEXT: |
455ece5e |
928 | case SAVEt_ALLOC: |
161b7d16 |
929 | i = SSPOPINT; |
3280af22 |
930 | PL_savestack_ix -= i; /* regexp must have croaked */ |
a0d0e21e |
931 | break; |
55497cff |
932 | case SAVEt_STACK_POS: /* Position on Perl stack */ |
161b7d16 |
933 | i = SSPOPINT; |
3280af22 |
934 | PL_stack_sp = PL_stack_base + i; |
55497cff |
935 | break; |
161b7d16 |
936 | case SAVEt_AELEM: /* array element */ |
937 | value = (SV*)SSPOPPTR; |
938 | i = SSPOPINT; |
939 | av = (AV*)SSPOPPTR; |
5dd42e15 |
940 | if (!AvREAL(av) && AvREIFY(av)) /* undo reify guard */ |
941 | SvREFCNT_dec(value); |
161b7d16 |
942 | ptr = av_fetch(av,i,1); |
4e4c362e |
943 | if (ptr) { |
944 | sv = *(SV**)ptr; |
3280af22 |
945 | if (sv && sv != &PL_sv_undef) { |
14befaf4 |
946 | if (SvTIED_mg((SV*)av, PERL_MAGIC_tied)) |
4e4c362e |
947 | (void)SvREFCNT_inc(sv); |
4e4c362e |
948 | goto restore_sv; |
949 | } |
950 | } |
951 | SvREFCNT_dec(av); |
952 | SvREFCNT_dec(value); |
953 | break; |
161b7d16 |
954 | case SAVEt_HELEM: /* hash element */ |
955 | value = (SV*)SSPOPPTR; |
9002cb76 |
956 | sv = (SV*)SSPOPPTR; |
161b7d16 |
957 | hv = (HV*)SSPOPPTR; |
958 | ptr = hv_fetch_ent(hv, sv, 1, 0); |
4e4c362e |
959 | if (ptr) { |
35a4481c |
960 | const SV * const oval = HeVAL((HE*)ptr); |
3280af22 |
961 | if (oval && oval != &PL_sv_undef) { |
4e4c362e |
962 | ptr = &HeVAL((HE*)ptr); |
14befaf4 |
963 | if (SvTIED_mg((SV*)hv, PERL_MAGIC_tied)) |
4e4c362e |
964 | (void)SvREFCNT_inc(*(SV**)ptr); |
4e4c362e |
965 | SvREFCNT_dec(sv); |
5dd42e15 |
966 | av = (AV*)hv; /* what to refcnt_dec */ |
4e4c362e |
967 | goto restore_sv; |
968 | } |
969 | } |
970 | SvREFCNT_dec(hv); |
971 | SvREFCNT_dec(sv); |
972 | SvREFCNT_dec(value); |
973 | break; |
462e5cf6 |
974 | case SAVEt_OP: |
533c011a |
975 | PL_op = (OP*)SSPOPPTR; |
462e5cf6 |
976 | break; |
25eaa213 |
977 | case SAVEt_HINTS: |
045ac317 |
978 | if ((PL_hints & HINT_LOCALIZE_HH) && GvHV(PL_hintgv)) { |
979 | SvREFCNT_dec((SV*)GvHV(PL_hintgv)); |
980 | GvHV(PL_hintgv) = NULL; |
981 | } |
3280af22 |
982 | *(I32*)&PL_hints = (I32)SSPOPINT; |
dfa41748 |
983 | if (PL_hints & HINT_LOCALIZE_HH) { |
984 | SvREFCNT_dec((SV*)GvHV(PL_hintgv)); |
985 | GvHV(PL_hintgv) = (HV*)SSPOPPTR; |
986 | } |
987 | |
b3ac6de7 |
988 | break; |
cb50131a |
989 | case SAVEt_COMPPAD: |
f3548bdc |
990 | PL_comppad = (PAD*)SSPOPPTR; |
58ed4fbe |
991 | if (PL_comppad) |
cb50131a |
992 | PL_curpad = AvARRAY(PL_comppad); |
993 | else |
994 | PL_curpad = Null(SV**); |
995 | break; |
c3564e5c |
996 | case SAVEt_PADSV: |
997 | { |
35a4481c |
998 | const PADOFFSET off = (PADOFFSET)SSPOPLONG; |
c3564e5c |
999 | ptr = SSPOPPTR; |
1000 | if (ptr) |
f3548bdc |
1001 | AvARRAY((PAD*)ptr)[off] = (SV*)SSPOPPTR; |
c3564e5c |
1002 | } |
1003 | break; |
8b7059b1 |
1004 | case SAVEt_SAVESWITCHSTACK: |
1005 | { |
1006 | dSP; |
7452cf6a |
1007 | AV* const t = (AV*)SSPOPPTR; |
1008 | AV* const f = (AV*)SSPOPPTR; |
8b7059b1 |
1009 | SWITCHSTACK(t,f); |
1010 | PL_curstackinfo->si_stack = f; |
1011 | } |
1012 | break; |
14f338dc |
1013 | case SAVEt_SET_SVFLAGS: |
1014 | { |
35a4481c |
1015 | const U32 val = (U32)SSPOPINT; |
1016 | const U32 mask = (U32)SSPOPINT; |
14f338dc |
1017 | sv = (SV*)SSPOPPTR; |
1018 | SvFLAGS(sv) &= ~mask; |
1019 | SvFLAGS(sv) |= val; |
1020 | } |
1021 | break; |
79072805 |
1022 | default: |
cea2e8a9 |
1023 | Perl_croak(aTHX_ "panic: leave_scope inconsistency"); |
79072805 |
1024 | } |
1025 | } |
1026 | } |
8990e307 |
1027 | |
8990e307 |
1028 | void |
864dbfa3 |
1029 | Perl_cx_dump(pTHX_ PERL_CONTEXT *cx) |
8990e307 |
1030 | { |
97aff369 |
1031 | dVAR; |
35ff7856 |
1032 | #ifdef DEBUGGING |
22c35a8c |
1033 | PerlIO_printf(Perl_debug_log, "CX %ld = %s\n", (long)(cx - cxstack), PL_block_type[CxTYPE(cx)]); |
6b35e009 |
1034 | if (CxTYPE(cx) != CXt_SUBST) { |
760ac839 |
1035 | PerlIO_printf(Perl_debug_log, "BLK_OLDSP = %ld\n", (long)cx->blk_oldsp); |
146174a9 |
1036 | PerlIO_printf(Perl_debug_log, "BLK_OLDCOP = 0x%"UVxf"\n", |
1037 | PTR2UV(cx->blk_oldcop)); |
760ac839 |
1038 | PerlIO_printf(Perl_debug_log, "BLK_OLDMARKSP = %ld\n", (long)cx->blk_oldmarksp); |
1039 | PerlIO_printf(Perl_debug_log, "BLK_OLDSCOPESP = %ld\n", (long)cx->blk_oldscopesp); |
146174a9 |
1040 | PerlIO_printf(Perl_debug_log, "BLK_OLDPM = 0x%"UVxf"\n", |
1041 | PTR2UV(cx->blk_oldpm)); |
760ac839 |
1042 | PerlIO_printf(Perl_debug_log, "BLK_GIMME = %s\n", cx->blk_gimme ? "LIST" : "SCALAR"); |
8990e307 |
1043 | } |
6b35e009 |
1044 | switch (CxTYPE(cx)) { |
8990e307 |
1045 | case CXt_NULL: |
1046 | case CXt_BLOCK: |
1047 | break; |
146174a9 |
1048 | case CXt_FORMAT: |
1049 | PerlIO_printf(Perl_debug_log, "BLK_SUB.CV = 0x%"UVxf"\n", |
1050 | PTR2UV(cx->blk_sub.cv)); |
1051 | PerlIO_printf(Perl_debug_log, "BLK_SUB.GV = 0x%"UVxf"\n", |
1052 | PTR2UV(cx->blk_sub.gv)); |
1053 | PerlIO_printf(Perl_debug_log, "BLK_SUB.DFOUTGV = 0x%"UVxf"\n", |
1054 | PTR2UV(cx->blk_sub.dfoutgv)); |
1055 | PerlIO_printf(Perl_debug_log, "BLK_SUB.HASARGS = %d\n", |
1056 | (int)cx->blk_sub.hasargs); |
f39bc417 |
1057 | PerlIO_printf(Perl_debug_log, "BLK_SUB.RETOP = 0x%"UVxf"\n", |
1058 | PTR2UV(cx->blk_sub.retop)); |
146174a9 |
1059 | break; |
8990e307 |
1060 | case CXt_SUB: |
146174a9 |
1061 | PerlIO_printf(Perl_debug_log, "BLK_SUB.CV = 0x%"UVxf"\n", |
1062 | PTR2UV(cx->blk_sub.cv)); |
760ac839 |
1063 | PerlIO_printf(Perl_debug_log, "BLK_SUB.OLDDEPTH = %ld\n", |
8990e307 |
1064 | (long)cx->blk_sub.olddepth); |
760ac839 |
1065 | PerlIO_printf(Perl_debug_log, "BLK_SUB.HASARGS = %d\n", |
8990e307 |
1066 | (int)cx->blk_sub.hasargs); |
146174a9 |
1067 | PerlIO_printf(Perl_debug_log, "BLK_SUB.LVAL = %d\n", |
1068 | (int)cx->blk_sub.lval); |
f39bc417 |
1069 | PerlIO_printf(Perl_debug_log, "BLK_SUB.RETOP = 0x%"UVxf"\n", |
1070 | PTR2UV(cx->blk_sub.retop)); |
8990e307 |
1071 | break; |
1072 | case CXt_EVAL: |
760ac839 |
1073 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_IN_EVAL = %ld\n", |
8990e307 |
1074 | (long)cx->blk_eval.old_in_eval); |
760ac839 |
1075 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_OP_TYPE = %s (%s)\n", |
22c35a8c |
1076 | PL_op_name[cx->blk_eval.old_op_type], |
1077 | PL_op_desc[cx->blk_eval.old_op_type]); |
0f79a09d |
1078 | if (cx->blk_eval.old_namesv) |
1079 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_NAME = %s\n", |
aa07b2f6 |
1080 | SvPVX_const(cx->blk_eval.old_namesv)); |
146174a9 |
1081 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_EVAL_ROOT = 0x%"UVxf"\n", |
1082 | PTR2UV(cx->blk_eval.old_eval_root)); |
f39bc417 |
1083 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.RETOP = 0x%"UVxf"\n", |
1084 | PTR2UV(cx->blk_eval.retop)); |
8990e307 |
1085 | break; |
1086 | |
1087 | case CXt_LOOP: |
760ac839 |
1088 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.LABEL = %s\n", |
8990e307 |
1089 | cx->blk_loop.label); |
760ac839 |
1090 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.RESETSP = %ld\n", |
8990e307 |
1091 | (long)cx->blk_loop.resetsp); |
146174a9 |
1092 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.REDO_OP = 0x%"UVxf"\n", |
1093 | PTR2UV(cx->blk_loop.redo_op)); |
1094 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.NEXT_OP = 0x%"UVxf"\n", |
1095 | PTR2UV(cx->blk_loop.next_op)); |
1096 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.LAST_OP = 0x%"UVxf"\n", |
1097 | PTR2UV(cx->blk_loop.last_op)); |
760ac839 |
1098 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERIX = %ld\n", |
8990e307 |
1099 | (long)cx->blk_loop.iterix); |
146174a9 |
1100 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERARY = 0x%"UVxf"\n", |
1101 | PTR2UV(cx->blk_loop.iterary)); |
1102 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERVAR = 0x%"UVxf"\n", |
1103 | PTR2UV(CxITERVAR(cx))); |
1104 | if (CxITERVAR(cx)) |
1105 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERSAVE = 0x%"UVxf"\n", |
1106 | PTR2UV(cx->blk_loop.itersave)); |
1107 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERLVAL = 0x%"UVxf"\n", |
1108 | PTR2UV(cx->blk_loop.iterlval)); |
8990e307 |
1109 | break; |
1110 | |
1111 | case CXt_SUBST: |
760ac839 |
1112 | PerlIO_printf(Perl_debug_log, "SB_ITERS = %ld\n", |
8990e307 |
1113 | (long)cx->sb_iters); |
760ac839 |
1114 | PerlIO_printf(Perl_debug_log, "SB_MAXITERS = %ld\n", |
8990e307 |
1115 | (long)cx->sb_maxiters); |
35ef4773 |
1116 | PerlIO_printf(Perl_debug_log, "SB_RFLAGS = %ld\n", |
1117 | (long)cx->sb_rflags); |
760ac839 |
1118 | PerlIO_printf(Perl_debug_log, "SB_ONCE = %ld\n", |
8990e307 |
1119 | (long)cx->sb_once); |
760ac839 |
1120 | PerlIO_printf(Perl_debug_log, "SB_ORIG = %s\n", |
8990e307 |
1121 | cx->sb_orig); |
146174a9 |
1122 | PerlIO_printf(Perl_debug_log, "SB_DSTR = 0x%"UVxf"\n", |
1123 | PTR2UV(cx->sb_dstr)); |
1124 | PerlIO_printf(Perl_debug_log, "SB_TARG = 0x%"UVxf"\n", |
1125 | PTR2UV(cx->sb_targ)); |
1126 | PerlIO_printf(Perl_debug_log, "SB_S = 0x%"UVxf"\n", |
1127 | PTR2UV(cx->sb_s)); |
1128 | PerlIO_printf(Perl_debug_log, "SB_M = 0x%"UVxf"\n", |
1129 | PTR2UV(cx->sb_m)); |
1130 | PerlIO_printf(Perl_debug_log, "SB_STREND = 0x%"UVxf"\n", |
1131 | PTR2UV(cx->sb_strend)); |
1132 | PerlIO_printf(Perl_debug_log, "SB_RXRES = 0x%"UVxf"\n", |
1133 | PTR2UV(cx->sb_rxres)); |
8990e307 |
1134 | break; |
1135 | } |
65e66c80 |
1136 | #else |
1137 | PERL_UNUSED_ARG(cx); |
17c3b450 |
1138 | #endif /* DEBUGGING */ |
35ff7856 |
1139 | } |
241d1a3b |
1140 | |
1141 | /* |
1142 | * Local variables: |
1143 | * c-indentation-style: bsd |
1144 | * c-basic-offset: 4 |
1145 | * indent-tabs-mode: t |
1146 | * End: |
1147 | * |
37442d52 |
1148 | * ex: set ts=8 sts=4 sw=4 noet: |
1149 | */ |