Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* scope.c |
79072805 | 2 | * |
bc89e66f | 3 | * Copyright (c) 1991-2001, Larry Wall |
79072805 LW |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public | |
6 | * License or the Artistic License, as specified in the README file. | |
7 | * | |
a0d0e21e LW |
8 | */ |
9 | ||
10 | /* | |
11 | * "For the fashion of Minas Tirith was such that it was built on seven | |
12 | * levels..." | |
79072805 LW |
13 | */ |
14 | ||
15 | #include "EXTERN.h" | |
864dbfa3 | 16 | #define PERL_IN_SCOPE_C |
79072805 LW |
17 | #include "perl.h" |
18 | ||
14dd3ad8 | 19 | #if defined(PERL_FLEXIBLE_EXCEPTIONS) |
312caa8e | 20 | void * |
146174a9 CB |
21 | Perl_default_protect(pTHX_ volatile JMPENV *pcur_env, int *excpt, |
22 | protect_body_t body, ...) | |
312caa8e | 23 | { |
c5be433b GS |
24 | void *ret; |
25 | va_list args; | |
26 | va_start(args, body); | |
146174a9 | 27 | ret = vdefault_protect(pcur_env, excpt, body, &args); |
c5be433b GS |
28 | va_end(args); |
29 | return ret; | |
30 | } | |
31 | ||
32 | void * | |
146174a9 CB |
33 | Perl_vdefault_protect(pTHX_ volatile JMPENV *pcur_env, int *excpt, |
34 | protect_body_t body, va_list *args) | |
c5be433b | 35 | { |
312caa8e CS |
36 | int ex; |
37 | void *ret; | |
38 | ||
312caa8e CS |
39 | JMPENV_PUSH(ex); |
40 | if (ex) | |
41 | ret = NULL; | |
c5be433b GS |
42 | else |
43 | ret = CALL_FPTR(body)(aTHX_ *args); | |
a6c40364 | 44 | *excpt = ex; |
312caa8e CS |
45 | JMPENV_POP; |
46 | return ret; | |
47 | } | |
14dd3ad8 | 48 | #endif |
312caa8e | 49 | |
a0d0e21e | 50 | SV** |
864dbfa3 | 51 | Perl_stack_grow(pTHX_ SV **sp, SV **p, int n) |
a0d0e21e | 52 | { |
3280af22 | 53 | PL_stack_sp = sp; |
2ce36478 | 54 | #ifndef STRESS_REALLOC |
3280af22 | 55 | av_extend(PL_curstack, (p - PL_stack_base) + (n) + 128); |
2ce36478 | 56 | #else |
6b88bc9c | 57 | av_extend(PL_curstack, (p - PL_stack_base) + (n) + 1); |
2ce36478 | 58 | #endif |
3280af22 | 59 | return PL_stack_sp; |
a0d0e21e LW |
60 | } |
61 | ||
2ce36478 SM |
62 | #ifndef STRESS_REALLOC |
63 | #define GROW(old) ((old) * 3 / 2) | |
64 | #else | |
65 | #define GROW(old) ((old) + 1) | |
66 | #endif | |
67 | ||
e336de0d | 68 | PERL_SI * |
864dbfa3 | 69 | Perl_new_stackinfo(pTHX_ I32 stitems, I32 cxitems) |
e336de0d GS |
70 | { |
71 | PERL_SI *si; | |
e336de0d GS |
72 | New(56, si, 1, PERL_SI); |
73 | si->si_stack = newAV(); | |
74 | AvREAL_off(si->si_stack); | |
75 | av_extend(si->si_stack, stitems > 0 ? stitems-1 : 0); | |
3280af22 | 76 | AvALLOC(si->si_stack)[0] = &PL_sv_undef; |
e336de0d GS |
77 | AvFILLp(si->si_stack) = 0; |
78 | si->si_prev = 0; | |
79 | si->si_next = 0; | |
80 | si->si_cxmax = cxitems - 1; | |
81 | si->si_cxix = -1; | |
e788e7d3 | 82 | si->si_type = PERLSI_UNDEF; |
e336de0d GS |
83 | New(56, si->si_cxstack, cxitems, PERL_CONTEXT); |
84 | return si; | |
85 | } | |
86 | ||
79072805 | 87 | I32 |
864dbfa3 | 88 | Perl_cxinc(pTHX) |
79072805 | 89 | { |
2ce36478 | 90 | cxstack_max = GROW(cxstack_max); |
c09156bb | 91 | Renew(cxstack, cxstack_max + 1, PERL_CONTEXT); /* XXX should fix CXINC macro */ |
79072805 LW |
92 | return cxstack_ix + 1; |
93 | } | |
94 | ||
95 | void | |
864dbfa3 | 96 | Perl_push_return(pTHX_ OP *retop) |
79072805 | 97 | { |
3280af22 NIS |
98 | if (PL_retstack_ix == PL_retstack_max) { |
99 | PL_retstack_max = GROW(PL_retstack_max); | |
100 | Renew(PL_retstack, PL_retstack_max, OP*); | |
79072805 | 101 | } |
3280af22 | 102 | PL_retstack[PL_retstack_ix++] = retop; |
79072805 LW |
103 | } |
104 | ||
105 | OP * | |
864dbfa3 | 106 | Perl_pop_return(pTHX) |
79072805 | 107 | { |
3280af22 NIS |
108 | if (PL_retstack_ix > 0) |
109 | return PL_retstack[--PL_retstack_ix]; | |
79072805 LW |
110 | else |
111 | return Nullop; | |
112 | } | |
113 | ||
114 | void | |
864dbfa3 | 115 | Perl_push_scope(pTHX) |
79072805 | 116 | { |
3280af22 NIS |
117 | if (PL_scopestack_ix == PL_scopestack_max) { |
118 | PL_scopestack_max = GROW(PL_scopestack_max); | |
119 | Renew(PL_scopestack, PL_scopestack_max, I32); | |
79072805 | 120 | } |
3280af22 | 121 | PL_scopestack[PL_scopestack_ix++] = PL_savestack_ix; |
79072805 LW |
122 | |
123 | } | |
124 | ||
125 | void | |
864dbfa3 | 126 | Perl_pop_scope(pTHX) |
79072805 | 127 | { |
3280af22 | 128 | I32 oldsave = PL_scopestack[--PL_scopestack_ix]; |
8990e307 | 129 | LEAVE_SCOPE(oldsave); |
79072805 LW |
130 | } |
131 | ||
132 | void | |
864dbfa3 | 133 | Perl_markstack_grow(pTHX) |
a0d0e21e | 134 | { |
3280af22 | 135 | I32 oldmax = PL_markstack_max - PL_markstack; |
2ce36478 | 136 | I32 newmax = GROW(oldmax); |
a0d0e21e | 137 | |
3280af22 NIS |
138 | Renew(PL_markstack, newmax, I32); |
139 | PL_markstack_ptr = PL_markstack + oldmax; | |
140 | PL_markstack_max = PL_markstack + newmax; | |
a0d0e21e LW |
141 | } |
142 | ||
143 | void | |
864dbfa3 | 144 | Perl_savestack_grow(pTHX) |
79072805 | 145 | { |
8aacddc1 | 146 | PL_savestack_max = GROW(PL_savestack_max) + 4; |
3280af22 | 147 | Renew(PL_savestack, PL_savestack_max, ANY); |
79072805 LW |
148 | } |
149 | ||
2ce36478 SM |
150 | #undef GROW |
151 | ||
79072805 | 152 | void |
864dbfa3 | 153 | Perl_tmps_grow(pTHX_ I32 n) |
677b06e3 | 154 | { |
677b06e3 GS |
155 | #ifndef STRESS_REALLOC |
156 | if (n < 128) | |
157 | n = (PL_tmps_max < 512) ? 128 : 512; | |
158 | #endif | |
159 | PL_tmps_max = PL_tmps_ix + n + 1; | |
160 | Renew(PL_tmps_stack, PL_tmps_max, SV*); | |
161 | } | |
162 | ||
163 | ||
164 | void | |
864dbfa3 | 165 | Perl_free_tmps(pTHX) |
79072805 LW |
166 | { |
167 | /* XXX should tmps_floor live in cxstack? */ | |
3280af22 NIS |
168 | I32 myfloor = PL_tmps_floor; |
169 | while (PL_tmps_ix > myfloor) { /* clean up after last statement */ | |
170 | SV* sv = PL_tmps_stack[PL_tmps_ix]; | |
171 | PL_tmps_stack[PL_tmps_ix--] = Nullsv; | |
8aacddc1 | 172 | if (sv && sv != &PL_sv_undef) { |
463ee0b2 | 173 | SvTEMP_off(sv); |
8990e307 | 174 | SvREFCNT_dec(sv); /* note, can modify tmps_ix!!! */ |
463ee0b2 | 175 | } |
79072805 LW |
176 | } |
177 | } | |
178 | ||
76e3520e | 179 | STATIC SV * |
cea2e8a9 | 180 | S_save_scalar_at(pTHX_ SV **sptr) |
79072805 LW |
181 | { |
182 | register SV *sv; | |
7a4c00b4 | 183 | SV *osv = *sptr; |
79072805 | 184 | |
7a4c00b4 | 185 | sv = *sptr = NEWSV(0,0); |
a0d0e21e | 186 | if (SvTYPE(osv) >= SVt_PVMG && SvMAGIC(osv) && SvTYPE(osv) != SVt_PVGV) { |
79072805 | 187 | sv_upgrade(sv, SvTYPE(osv)); |
a0d0e21e | 188 | if (SvGMAGICAL(osv)) { |
748a9306 | 189 | MAGIC* mg; |
3280af22 | 190 | bool oldtainted = PL_tainted; |
5cfc7842 | 191 | mg_get(osv); /* note, can croak! */ |
14befaf4 DM |
192 | if (PL_tainting && PL_tainted && |
193 | (mg = mg_find(osv, PERL_MAGIC_taint))) { | |
748a9306 LW |
194 | SAVESPTR(mg->mg_obj); |
195 | mg->mg_obj = osv; | |
196 | } | |
a0d0e21e | 197 | SvFLAGS(osv) |= (SvFLAGS(osv) & |
8aacddc1 | 198 | (SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
3280af22 | 199 | PL_tainted = oldtainted; |
a0d0e21e | 200 | } |
79072805 | 201 | SvMAGIC(sv) = SvMAGIC(osv); |
a0d0e21e | 202 | SvFLAGS(sv) |= SvMAGICAL(osv); |
2d5e9e5d JH |
203 | /* XXX SvMAGIC() is *shared* between osv and sv. This can |
204 | * lead to coredumps when both SVs are destroyed without one | |
205 | * of their SvMAGIC() slots being NULLed. */ | |
3280af22 | 206 | PL_localizing = 1; |
79072805 | 207 | SvSETMAGIC(sv); |
3280af22 | 208 | PL_localizing = 0; |
79072805 LW |
209 | } |
210 | return sv; | |
211 | } | |
212 | ||
7a4c00b4 | 213 | SV * |
864dbfa3 | 214 | Perl_save_scalar(pTHX_ GV *gv) |
7a4c00b4 | 215 | { |
4e4c362e | 216 | SV **sptr = &GvSV(gv); |
7a4c00b4 | 217 | SSCHECK(3); |
4e4c362e GS |
218 | SSPUSHPTR(SvREFCNT_inc(gv)); |
219 | SSPUSHPTR(SvREFCNT_inc(*sptr)); | |
7a4c00b4 | 220 | SSPUSHINT(SAVEt_SV); |
4e4c362e | 221 | return save_scalar_at(sptr); |
7a4c00b4 | 222 | } |
223 | ||
224 | SV* | |
864dbfa3 | 225 | Perl_save_svref(pTHX_ SV **sptr) |
7a4c00b4 | 226 | { |
227 | SSCHECK(3); | |
228 | SSPUSHPTR(sptr); | |
4e4c362e | 229 | SSPUSHPTR(SvREFCNT_inc(*sptr)); |
7a4c00b4 | 230 | SSPUSHINT(SAVEt_SVREF); |
231 | return save_scalar_at(sptr); | |
232 | } | |
233 | ||
f4dd75d9 | 234 | /* Like save_sptr(), but also SvREFCNT_dec()s the new value. Can be used to |
b9d12d37 GS |
235 | * restore a global SV to its prior contents, freeing new value. */ |
236 | void | |
864dbfa3 | 237 | Perl_save_generic_svref(pTHX_ SV **sptr) |
b9d12d37 | 238 | { |
b9d12d37 GS |
239 | SSCHECK(3); |
240 | SSPUSHPTR(sptr); | |
241 | SSPUSHPTR(SvREFCNT_inc(*sptr)); | |
242 | SSPUSHINT(SAVEt_GENERIC_SVREF); | |
243 | } | |
244 | ||
f4dd75d9 GS |
245 | /* Like save_pptr(), but also Safefree()s the new value if it is different |
246 | * from the old one. Can be used to restore a global char* to its prior | |
247 | * contents, freeing new value. */ | |
248 | void | |
249 | Perl_save_generic_pvref(pTHX_ char **str) | |
250 | { | |
f4dd75d9 GS |
251 | SSCHECK(3); |
252 | SSPUSHPTR(str); | |
253 | SSPUSHPTR(*str); | |
254 | SSPUSHINT(SAVEt_GENERIC_PVREF); | |
255 | } | |
256 | ||
79072805 | 257 | void |
864dbfa3 | 258 | Perl_save_gp(pTHX_ GV *gv, I32 empty) |
79072805 | 259 | { |
fb73857a | 260 | SSCHECK(6); |
261 | SSPUSHIV((IV)SvLEN(gv)); | |
262 | SvLEN(gv) = 0; /* forget that anything was allocated here */ | |
263 | SSPUSHIV((IV)SvCUR(gv)); | |
264 | SSPUSHPTR(SvPVX(gv)); | |
265 | SvPOK_off(gv); | |
4633a7c4 | 266 | SSPUSHPTR(SvREFCNT_inc(gv)); |
5f05dabc | 267 | SSPUSHPTR(GvGP(gv)); |
79072805 LW |
268 | SSPUSHINT(SAVEt_GP); |
269 | ||
5f05dabc | 270 | if (empty) { |
271 | register GP *gp; | |
fae75791 | 272 | |
146174a9 CB |
273 | Newz(602, gp, 1, GP); |
274 | ||
fae75791 | 275 | if (GvCVu(gv)) |
3280af22 | 276 | PL_sub_generation++; /* taking a method out of circulation */ |
146174a9 CB |
277 | if (GvIOp(gv) && (IoFLAGS(GvIOp(gv)) & IOf_ARGV)) { |
278 | gp->gp_io = newIO(); | |
279 | IoFLAGS(gp->gp_io) |= IOf_ARGV|IOf_START; | |
280 | } | |
44a8e56a | 281 | GvGP(gv) = gp_ref(gp); |
5f05dabc | 282 | GvSV(gv) = NEWSV(72,0); |
146174a9 | 283 | GvLINE(gv) = CopLINE(PL_curcop); |
94051fc1 | 284 | GvFILE(gv) = CopFILE(PL_curcop) ? CopFILE(PL_curcop) : ""; |
5f05dabc | 285 | GvEGV(gv) = gv; |
286 | } | |
287 | else { | |
44a8e56a | 288 | gp_ref(GvGP(gv)); |
5f05dabc | 289 | GvINTRO_on(gv); |
290 | } | |
79072805 | 291 | } |
79072805 | 292 | |
79072805 | 293 | AV * |
864dbfa3 | 294 | Perl_save_ary(pTHX_ GV *gv) |
79072805 | 295 | { |
67a38de0 NIS |
296 | AV *oav = GvAVn(gv); |
297 | AV *av; | |
fb73857a | 298 | |
67a38de0 NIS |
299 | if (!AvREAL(oav) && AvREIFY(oav)) |
300 | av_reify(oav); | |
79072805 LW |
301 | SSCHECK(3); |
302 | SSPUSHPTR(gv); | |
67a38de0 | 303 | SSPUSHPTR(oav); |
79072805 LW |
304 | SSPUSHINT(SAVEt_AV); |
305 | ||
306 | GvAV(gv) = Null(AV*); | |
fb73857a | 307 | av = GvAVn(gv); |
308 | if (SvMAGIC(oav)) { | |
309 | SvMAGIC(av) = SvMAGIC(oav); | |
32da55ab | 310 | SvFLAGS((SV*)av) |= SvMAGICAL(oav); |
fb73857a | 311 | SvMAGICAL_off(oav); |
312 | SvMAGIC(oav) = 0; | |
3280af22 | 313 | PL_localizing = 1; |
fb73857a | 314 | SvSETMAGIC((SV*)av); |
3280af22 | 315 | PL_localizing = 0; |
fb73857a | 316 | } |
317 | return av; | |
79072805 LW |
318 | } |
319 | ||
320 | HV * | |
864dbfa3 | 321 | Perl_save_hash(pTHX_ GV *gv) |
79072805 | 322 | { |
fb73857a | 323 | HV *ohv, *hv; |
324 | ||
79072805 LW |
325 | SSCHECK(3); |
326 | SSPUSHPTR(gv); | |
fb73857a | 327 | SSPUSHPTR(ohv = GvHVn(gv)); |
79072805 LW |
328 | SSPUSHINT(SAVEt_HV); |
329 | ||
330 | GvHV(gv) = Null(HV*); | |
fb73857a | 331 | hv = GvHVn(gv); |
332 | if (SvMAGIC(ohv)) { | |
333 | SvMAGIC(hv) = SvMAGIC(ohv); | |
32da55ab | 334 | SvFLAGS((SV*)hv) |= SvMAGICAL(ohv); |
fb73857a | 335 | SvMAGICAL_off(ohv); |
336 | SvMAGIC(ohv) = 0; | |
3280af22 | 337 | PL_localizing = 1; |
fb73857a | 338 | SvSETMAGIC((SV*)hv); |
3280af22 | 339 | PL_localizing = 0; |
fb73857a | 340 | } |
341 | return hv; | |
79072805 LW |
342 | } |
343 | ||
344 | void | |
864dbfa3 | 345 | Perl_save_item(pTHX_ register SV *item) |
79072805 | 346 | { |
f46d017c | 347 | register SV *sv = NEWSV(0,0); |
79072805 | 348 | |
f46d017c | 349 | sv_setsv(sv,item); |
79072805 LW |
350 | SSCHECK(3); |
351 | SSPUSHPTR(item); /* remember the pointer */ | |
79072805 LW |
352 | SSPUSHPTR(sv); /* remember the value */ |
353 | SSPUSHINT(SAVEt_ITEM); | |
354 | } | |
355 | ||
356 | void | |
864dbfa3 | 357 | Perl_save_int(pTHX_ int *intp) |
79072805 LW |
358 | { |
359 | SSCHECK(3); | |
360 | SSPUSHINT(*intp); | |
361 | SSPUSHPTR(intp); | |
362 | SSPUSHINT(SAVEt_INT); | |
363 | } | |
364 | ||
365 | void | |
864dbfa3 | 366 | Perl_save_long(pTHX_ long int *longp) |
85e6fe83 LW |
367 | { |
368 | SSCHECK(3); | |
369 | SSPUSHLONG(*longp); | |
370 | SSPUSHPTR(longp); | |
371 | SSPUSHINT(SAVEt_LONG); | |
372 | } | |
373 | ||
374 | void | |
864dbfa3 | 375 | Perl_save_I32(pTHX_ I32 *intp) |
79072805 LW |
376 | { |
377 | SSCHECK(3); | |
378 | SSPUSHINT(*intp); | |
379 | SSPUSHPTR(intp); | |
380 | SSPUSHINT(SAVEt_I32); | |
381 | } | |
382 | ||
a0d0e21e | 383 | void |
864dbfa3 | 384 | Perl_save_I16(pTHX_ I16 *intp) |
55497cff | 385 | { |
386 | SSCHECK(3); | |
387 | SSPUSHINT(*intp); | |
388 | SSPUSHPTR(intp); | |
389 | SSPUSHINT(SAVEt_I16); | |
390 | } | |
391 | ||
392 | void | |
146174a9 CB |
393 | Perl_save_I8(pTHX_ I8 *bytep) |
394 | { | |
146174a9 CB |
395 | SSCHECK(3); |
396 | SSPUSHINT(*bytep); | |
397 | SSPUSHPTR(bytep); | |
398 | SSPUSHINT(SAVEt_I8); | |
399 | } | |
400 | ||
401 | void | |
864dbfa3 | 402 | Perl_save_iv(pTHX_ IV *ivp) |
a0d0e21e LW |
403 | { |
404 | SSCHECK(3); | |
4aa0a1f7 | 405 | SSPUSHIV(*ivp); |
a0d0e21e LW |
406 | SSPUSHPTR(ivp); |
407 | SSPUSHINT(SAVEt_IV); | |
408 | } | |
409 | ||
85e6fe83 LW |
410 | /* Cannot use save_sptr() to store a char* since the SV** cast will |
411 | * force word-alignment and we'll miss the pointer. | |
412 | */ | |
413 | void | |
864dbfa3 | 414 | Perl_save_pptr(pTHX_ char **pptr) |
85e6fe83 LW |
415 | { |
416 | SSCHECK(3); | |
417 | SSPUSHPTR(*pptr); | |
418 | SSPUSHPTR(pptr); | |
419 | SSPUSHINT(SAVEt_PPTR); | |
420 | } | |
421 | ||
79072805 | 422 | void |
146174a9 CB |
423 | Perl_save_vptr(pTHX_ void *ptr) |
424 | { | |
146174a9 CB |
425 | SSCHECK(3); |
426 | SSPUSHPTR(*(char**)ptr); | |
427 | SSPUSHPTR(ptr); | |
428 | SSPUSHINT(SAVEt_VPTR); | |
429 | } | |
430 | ||
431 | void | |
864dbfa3 | 432 | Perl_save_sptr(pTHX_ SV **sptr) |
79072805 LW |
433 | { |
434 | SSCHECK(3); | |
435 | SSPUSHPTR(*sptr); | |
436 | SSPUSHPTR(sptr); | |
437 | SSPUSHINT(SAVEt_SPTR); | |
438 | } | |
439 | ||
c3564e5c GS |
440 | void |
441 | Perl_save_padsv(pTHX_ PADOFFSET off) | |
442 | { | |
c3564e5c GS |
443 | SSCHECK(4); |
444 | SSPUSHPTR(PL_curpad[off]); | |
445 | SSPUSHPTR(PL_curpad); | |
446 | SSPUSHLONG((long)off); | |
447 | SSPUSHINT(SAVEt_PADSV); | |
448 | } | |
449 | ||
54b9620d | 450 | SV ** |
864dbfa3 | 451 | Perl_save_threadsv(pTHX_ PADOFFSET i) |
54b9620d | 452 | { |
4d1ff10f | 453 | #ifdef USE_5005THREADS |
940cb80d | 454 | SV **svp = &THREADSV(i); /* XXX Change to save by offset */ |
146174a9 CB |
455 | DEBUG_S(PerlIO_printf(Perl_debug_log, "save_threadsv %"UVuf": %p %p:%s\n", |
456 | (UV)i, svp, *svp, SvPEEK(*svp))); | |
54b9620d MB |
457 | save_svref(svp); |
458 | return svp; | |
459 | #else | |
cea2e8a9 | 460 | Perl_croak(aTHX_ "panic: save_threadsv called in non-threaded perl"); |
54b9620d | 461 | return 0; |
4d1ff10f | 462 | #endif /* USE_5005THREADS */ |
54b9620d MB |
463 | } |
464 | ||
79072805 | 465 | void |
864dbfa3 | 466 | Perl_save_nogv(pTHX_ GV *gv) |
79072805 LW |
467 | { |
468 | SSCHECK(2); | |
469 | SSPUSHPTR(gv); | |
470 | SSPUSHINT(SAVEt_NSTAB); | |
471 | } | |
472 | ||
473 | void | |
864dbfa3 | 474 | Perl_save_hptr(pTHX_ HV **hptr) |
79072805 LW |
475 | { |
476 | SSCHECK(3); | |
85e6fe83 | 477 | SSPUSHPTR(*hptr); |
79072805 LW |
478 | SSPUSHPTR(hptr); |
479 | SSPUSHINT(SAVEt_HPTR); | |
480 | } | |
481 | ||
482 | void | |
864dbfa3 | 483 | Perl_save_aptr(pTHX_ AV **aptr) |
79072805 LW |
484 | { |
485 | SSCHECK(3); | |
85e6fe83 | 486 | SSPUSHPTR(*aptr); |
79072805 LW |
487 | SSPUSHPTR(aptr); |
488 | SSPUSHINT(SAVEt_APTR); | |
489 | } | |
490 | ||
491 | void | |
864dbfa3 | 492 | Perl_save_freesv(pTHX_ SV *sv) |
8990e307 LW |
493 | { |
494 | SSCHECK(2); | |
495 | SSPUSHPTR(sv); | |
496 | SSPUSHINT(SAVEt_FREESV); | |
497 | } | |
498 | ||
499 | void | |
26d9b02f JH |
500 | Perl_save_mortalizesv(pTHX_ SV *sv) |
501 | { | |
502 | SSCHECK(2); | |
503 | SSPUSHPTR(sv); | |
504 | SSPUSHINT(SAVEt_MORTALIZESV); | |
505 | } | |
506 | ||
507 | void | |
864dbfa3 | 508 | Perl_save_freeop(pTHX_ OP *o) |
8990e307 LW |
509 | { |
510 | SSCHECK(2); | |
11343788 | 511 | SSPUSHPTR(o); |
8990e307 LW |
512 | SSPUSHINT(SAVEt_FREEOP); |
513 | } | |
514 | ||
515 | void | |
864dbfa3 | 516 | Perl_save_freepv(pTHX_ char *pv) |
8990e307 LW |
517 | { |
518 | SSCHECK(2); | |
519 | SSPUSHPTR(pv); | |
520 | SSPUSHINT(SAVEt_FREEPV); | |
521 | } | |
522 | ||
523 | void | |
864dbfa3 | 524 | Perl_save_clearsv(pTHX_ SV **svp) |
8990e307 LW |
525 | { |
526 | SSCHECK(2); | |
3280af22 | 527 | SSPUSHLONG((long)(svp-PL_curpad)); |
8990e307 LW |
528 | SSPUSHINT(SAVEt_CLEARSV); |
529 | } | |
530 | ||
531 | void | |
864dbfa3 | 532 | Perl_save_delete(pTHX_ HV *hv, char *key, I32 klen) |
8990e307 LW |
533 | { |
534 | SSCHECK(4); | |
535 | SSPUSHINT(klen); | |
536 | SSPUSHPTR(key); | |
4e4c362e | 537 | SSPUSHPTR(SvREFCNT_inc(hv)); |
8990e307 LW |
538 | SSPUSHINT(SAVEt_DELETE); |
539 | } | |
540 | ||
541 | void | |
864dbfa3 | 542 | Perl_save_list(pTHX_ register SV **sarg, I32 maxsarg) |
79072805 LW |
543 | { |
544 | register SV *sv; | |
545 | register I32 i; | |
546 | ||
79072805 | 547 | for (i = 1; i <= maxsarg; i++) { |
79072805 LW |
548 | sv = NEWSV(0,0); |
549 | sv_setsv(sv,sarg[i]); | |
f46d017c GS |
550 | SSCHECK(3); |
551 | SSPUSHPTR(sarg[i]); /* remember the pointer */ | |
79072805 LW |
552 | SSPUSHPTR(sv); /* remember the value */ |
553 | SSPUSHINT(SAVEt_ITEM); | |
554 | } | |
555 | } | |
556 | ||
557 | void | |
146174a9 | 558 | Perl_save_destructor(pTHX_ DESTRUCTORFUNC_NOCONTEXT_t f, void* p) |
a0d0e21e LW |
559 | { |
560 | SSCHECK(3); | |
561 | SSPUSHDPTR(f); | |
562 | SSPUSHPTR(p); | |
563 | SSPUSHINT(SAVEt_DESTRUCTOR); | |
564 | } | |
565 | ||
566 | void | |
146174a9 CB |
567 | Perl_save_destructor_x(pTHX_ DESTRUCTORFUNC_t f, void* p) |
568 | { | |
146174a9 CB |
569 | SSCHECK(3); |
570 | SSPUSHDXPTR(f); | |
571 | SSPUSHPTR(p); | |
572 | SSPUSHINT(SAVEt_DESTRUCTOR_X); | |
573 | } | |
574 | ||
575 | void | |
864dbfa3 | 576 | Perl_save_aelem(pTHX_ AV *av, I32 idx, SV **sptr) |
4e4c362e | 577 | { |
4e4c362e GS |
578 | SSCHECK(4); |
579 | SSPUSHPTR(SvREFCNT_inc(av)); | |
580 | SSPUSHINT(idx); | |
581 | SSPUSHPTR(SvREFCNT_inc(*sptr)); | |
582 | SSPUSHINT(SAVEt_AELEM); | |
583 | save_scalar_at(sptr); | |
584 | } | |
585 | ||
586 | void | |
864dbfa3 | 587 | Perl_save_helem(pTHX_ HV *hv, SV *key, SV **sptr) |
4e4c362e | 588 | { |
4e4c362e GS |
589 | SSCHECK(4); |
590 | SSPUSHPTR(SvREFCNT_inc(hv)); | |
591 | SSPUSHPTR(SvREFCNT_inc(key)); | |
592 | SSPUSHPTR(SvREFCNT_inc(*sptr)); | |
593 | SSPUSHINT(SAVEt_HELEM); | |
594 | save_scalar_at(sptr); | |
595 | } | |
596 | ||
597 | void | |
864dbfa3 | 598 | Perl_save_op(pTHX) |
462e5cf6 | 599 | { |
462e5cf6 | 600 | SSCHECK(2); |
533c011a | 601 | SSPUSHPTR(PL_op); |
462e5cf6 MB |
602 | SSPUSHINT(SAVEt_OP); |
603 | } | |
604 | ||
455ece5e | 605 | I32 |
864dbfa3 | 606 | Perl_save_alloc(pTHX_ I32 size, I32 pad) |
455ece5e | 607 | { |
455ece5e | 608 | register I32 start = pad + ((char*)&PL_savestack[PL_savestack_ix] |
8aacddc1 | 609 | - (char*)PL_savestack); |
455ece5e AD |
610 | register I32 elems = 1 + ((size + pad - 1) / sizeof(*PL_savestack)); |
611 | ||
612 | /* SSCHECK may not be good enough */ | |
613 | while (PL_savestack_ix + elems + 2 > PL_savestack_max) | |
8aacddc1 | 614 | savestack_grow(); |
455ece5e AD |
615 | |
616 | PL_savestack_ix += elems; | |
617 | SSPUSHINT(elems); | |
618 | SSPUSHINT(SAVEt_ALLOC); | |
619 | return start; | |
620 | } | |
621 | ||
462e5cf6 | 622 | void |
864dbfa3 | 623 | Perl_leave_scope(pTHX_ I32 base) |
79072805 LW |
624 | { |
625 | register SV *sv; | |
626 | register SV *value; | |
627 | register GV *gv; | |
628 | register AV *av; | |
629 | register HV *hv; | |
630 | register void* ptr; | |
f4dd75d9 | 631 | register char* str; |
161b7d16 | 632 | I32 i; |
79072805 LW |
633 | |
634 | if (base < -1) | |
cea2e8a9 | 635 | Perl_croak(aTHX_ "panic: corrupt saved stack index"); |
3280af22 | 636 | while (PL_savestack_ix > base) { |
79072805 LW |
637 | switch (SSPOPINT) { |
638 | case SAVEt_ITEM: /* normal string */ | |
639 | value = (SV*)SSPOPPTR; | |
640 | sv = (SV*)SSPOPPTR; | |
641 | sv_replace(sv,value); | |
3280af22 | 642 | PL_localizing = 2; |
79072805 | 643 | SvSETMAGIC(sv); |
3280af22 | 644 | PL_localizing = 0; |
79072805 | 645 | break; |
8aacddc1 | 646 | case SAVEt_SV: /* scalar reference */ |
79072805 LW |
647 | value = (SV*)SSPOPPTR; |
648 | gv = (GV*)SSPOPPTR; | |
7a4c00b4 | 649 | ptr = &GvSV(gv); |
4e4c362e | 650 | SvREFCNT_dec(gv); |
7a4c00b4 | 651 | goto restore_sv; |
8aacddc1 | 652 | case SAVEt_GENERIC_PVREF: /* generic pv */ |
f4dd75d9 GS |
653 | str = (char*)SSPOPPTR; |
654 | ptr = SSPOPPTR; | |
655 | if (*(char**)ptr != str) { | |
656 | Safefree(*(char**)ptr); | |
657 | *(char**)ptr = str; | |
658 | } | |
659 | break; | |
8aacddc1 | 660 | case SAVEt_GENERIC_SVREF: /* generic sv */ |
b9d12d37 GS |
661 | value = (SV*)SSPOPPTR; |
662 | ptr = SSPOPPTR; | |
f4dd75d9 GS |
663 | sv = *(SV**)ptr; |
664 | *(SV**)ptr = value; | |
665 | SvREFCNT_dec(sv); | |
b9d12d37 GS |
666 | SvREFCNT_dec(value); |
667 | break; | |
8aacddc1 | 668 | case SAVEt_SVREF: /* scalar reference */ |
7a4c00b4 | 669 | value = (SV*)SSPOPPTR; |
79072805 | 670 | ptr = SSPOPPTR; |
7a4c00b4 | 671 | restore_sv: |
79072805 | 672 | sv = *(SV**)ptr; |
146174a9 | 673 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
54b9620d | 674 | "restore svref: %p %p:%s -> %p:%s\n", |
8aacddc1 | 675 | ptr, sv, SvPEEK(sv), value, SvPEEK(value))); |
0e548461 | 676 | if (SvTYPE(sv) == SVt_PVMG && SvMAGIC(sv)) { |
a0d0e21e LW |
677 | (void)SvUPGRADE(value, SvTYPE(sv)); |
678 | SvMAGIC(value) = SvMAGIC(sv); | |
679 | SvFLAGS(value) |= SvMAGICAL(sv); | |
680 | SvMAGICAL_off(sv); | |
79072805 | 681 | SvMAGIC(sv) = 0; |
a0d0e21e | 682 | } |
2d5e9e5d JH |
683 | /* XXX This branch is pretty bogus. This code irretrievably |
684 | * clears(!) the magic on the SV (either to avoid further | |
685 | * croaking that might ensue when the SvSETMAGIC() below is | |
686 | * called, or to avoid two different SVs pointing at the same | |
687 | * SvMAGIC()). This needs a total rethink. --GSAR */ | |
0e548461 | 688 | else if (SvTYPE(value) == SVt_PVMG && SvMAGIC(value)) { |
7a4c00b4 | 689 | SvFLAGS(value) |= (SvFLAGS(value) & |
8aacddc1 | 690 | (SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
7a4c00b4 | 691 | SvMAGICAL_off(value); |
2d5e9e5d JH |
692 | /* XXX this is a leak when we get here because the |
693 | * mg_get() in save_scalar_at() croaked */ | |
694 | SvMAGIC(value) = 0; | |
7a4c00b4 | 695 | } |
8aacddc1 | 696 | SvREFCNT_dec(sv); |
a0d0e21e | 697 | *(SV**)ptr = value; |
3280af22 | 698 | PL_localizing = 2; |
a0d0e21e | 699 | SvSETMAGIC(value); |
3280af22 | 700 | PL_localizing = 0; |
4e4c362e | 701 | SvREFCNT_dec(value); |
8aacddc1 NIS |
702 | break; |
703 | case SAVEt_AV: /* array reference */ | |
79072805 LW |
704 | av = (AV*)SSPOPPTR; |
705 | gv = (GV*)SSPOPPTR; | |
fb73857a | 706 | if (GvAV(gv)) { |
707 | AV *goner = GvAV(gv); | |
708 | SvMAGIC(av) = SvMAGIC(goner); | |
32da55ab | 709 | SvFLAGS((SV*)av) |= SvMAGICAL(goner); |
fb73857a | 710 | SvMAGICAL_off(goner); |
711 | SvMAGIC(goner) = 0; | |
712 | SvREFCNT_dec(goner); | |
713 | } | |
8aacddc1 | 714 | GvAV(gv) = av; |
fb73857a | 715 | if (SvMAGICAL(av)) { |
3280af22 | 716 | PL_localizing = 2; |
fb73857a | 717 | SvSETMAGIC((SV*)av); |
3280af22 | 718 | PL_localizing = 0; |
fb73857a | 719 | } |
8aacddc1 NIS |
720 | break; |
721 | case SAVEt_HV: /* hash reference */ | |
79072805 LW |
722 | hv = (HV*)SSPOPPTR; |
723 | gv = (GV*)SSPOPPTR; | |
fb73857a | 724 | if (GvHV(gv)) { |
725 | HV *goner = GvHV(gv); | |
726 | SvMAGIC(hv) = SvMAGIC(goner); | |
727 | SvFLAGS(hv) |= SvMAGICAL(goner); | |
728 | SvMAGICAL_off(goner); | |
729 | SvMAGIC(goner) = 0; | |
730 | SvREFCNT_dec(goner); | |
731 | } | |
8aacddc1 | 732 | GvHV(gv) = hv; |
fb73857a | 733 | if (SvMAGICAL(hv)) { |
3280af22 | 734 | PL_localizing = 2; |
fb73857a | 735 | SvSETMAGIC((SV*)hv); |
3280af22 | 736 | PL_localizing = 0; |
fb73857a | 737 | } |
8aacddc1 | 738 | break; |
79072805 LW |
739 | case SAVEt_INT: /* int reference */ |
740 | ptr = SSPOPPTR; | |
741 | *(int*)ptr = (int)SSPOPINT; | |
742 | break; | |
85e6fe83 LW |
743 | case SAVEt_LONG: /* long reference */ |
744 | ptr = SSPOPPTR; | |
745 | *(long*)ptr = (long)SSPOPLONG; | |
746 | break; | |
79072805 LW |
747 | case SAVEt_I32: /* I32 reference */ |
748 | ptr = SSPOPPTR; | |
749 | *(I32*)ptr = (I32)SSPOPINT; | |
750 | break; | |
55497cff | 751 | case SAVEt_I16: /* I16 reference */ |
752 | ptr = SSPOPPTR; | |
753 | *(I16*)ptr = (I16)SSPOPINT; | |
754 | break; | |
146174a9 CB |
755 | case SAVEt_I8: /* I8 reference */ |
756 | ptr = SSPOPPTR; | |
757 | *(I8*)ptr = (I8)SSPOPINT; | |
758 | break; | |
a0d0e21e LW |
759 | case SAVEt_IV: /* IV reference */ |
760 | ptr = SSPOPPTR; | |
761 | *(IV*)ptr = (IV)SSPOPIV; | |
762 | break; | |
79072805 LW |
763 | case SAVEt_SPTR: /* SV* reference */ |
764 | ptr = SSPOPPTR; | |
765 | *(SV**)ptr = (SV*)SSPOPPTR; | |
766 | break; | |
146174a9 | 767 | case SAVEt_VPTR: /* random* reference */ |
85e6fe83 LW |
768 | case SAVEt_PPTR: /* char* reference */ |
769 | ptr = SSPOPPTR; | |
770 | *(char**)ptr = (char*)SSPOPPTR; | |
771 | break; | |
79072805 LW |
772 | case SAVEt_HPTR: /* HV* reference */ |
773 | ptr = SSPOPPTR; | |
774 | *(HV**)ptr = (HV*)SSPOPPTR; | |
775 | break; | |
776 | case SAVEt_APTR: /* AV* reference */ | |
777 | ptr = SSPOPPTR; | |
778 | *(AV**)ptr = (AV*)SSPOPPTR; | |
779 | break; | |
780 | case SAVEt_NSTAB: | |
781 | gv = (GV*)SSPOPPTR; | |
1f96a9ed | 782 | (void)sv_clear((SV*)gv); |
79072805 | 783 | break; |
fb73857a | 784 | case SAVEt_GP: /* scalar reference */ |
79072805 LW |
785 | ptr = SSPOPPTR; |
786 | gv = (GV*)SSPOPPTR; | |
8aacddc1 NIS |
787 | if (SvPVX(gv) && SvLEN(gv) > 0) { |
788 | Safefree(SvPVX(gv)); | |
789 | } | |
790 | SvPVX(gv) = (char *)SSPOPPTR; | |
791 | SvCUR(gv) = (STRLEN)SSPOPIV; | |
792 | SvLEN(gv) = (STRLEN)SSPOPIV; | |
793 | gp_free(gv); | |
794 | GvGP(gv) = (GP*)ptr; | |
fae75791 | 795 | if (GvCVu(gv)) |
3280af22 | 796 | PL_sub_generation++; /* putting a method back into circulation */ |
4633a7c4 | 797 | SvREFCNT_dec(gv); |
8aacddc1 | 798 | break; |
8990e307 LW |
799 | case SAVEt_FREESV: |
800 | ptr = SSPOPPTR; | |
801 | SvREFCNT_dec((SV*)ptr); | |
802 | break; | |
26d9b02f JH |
803 | case SAVEt_MORTALIZESV: |
804 | ptr = SSPOPPTR; | |
805 | sv_2mortal((SV*)ptr); | |
806 | break; | |
8990e307 LW |
807 | case SAVEt_FREEOP: |
808 | ptr = SSPOPPTR; | |
3280af22 NIS |
809 | if (PL_comppad) |
810 | PL_curpad = AvARRAY(PL_comppad); | |
8990e307 LW |
811 | op_free((OP*)ptr); |
812 | break; | |
813 | case SAVEt_FREEPV: | |
814 | ptr = SSPOPPTR; | |
815 | Safefree((char*)ptr); | |
816 | break; | |
817 | case SAVEt_CLEARSV: | |
3280af22 | 818 | ptr = (void*)&PL_curpad[SSPOPLONG]; |
8990e307 | 819 | sv = *(SV**)ptr; |
bc44cdaf GS |
820 | /* Can clear pad variable in place? */ |
821 | if (SvREFCNT(sv) <= 1 && !SvOBJECT(sv)) { | |
8aacddc1 NIS |
822 | /* |
823 | * if a my variable that was made readonly is going out of | |
824 | * scope, we want to remove the readonlyness so that it can | |
825 | * go out of scope quietly | |
8aacddc1 | 826 | */ |
a26e96df | 827 | if (SvPADMY(sv) && !SvFAKE(sv)) |
8aacddc1 NIS |
828 | SvREADONLY_off(sv); |
829 | ||
6fc92669 | 830 | if (SvTHINKFIRST(sv)) |
840a7b70 | 831 | sv_force_normal_flags(sv, SV_IMMEDIATE_UNREF); |
a0d0e21e LW |
832 | if (SvMAGICAL(sv)) |
833 | mg_free(sv); | |
8990e307 LW |
834 | |
835 | switch (SvTYPE(sv)) { | |
836 | case SVt_NULL: | |
837 | break; | |
838 | case SVt_PVAV: | |
44a8e56a | 839 | av_clear((AV*)sv); |
8990e307 LW |
840 | break; |
841 | case SVt_PVHV: | |
44a8e56a | 842 | hv_clear((HV*)sv); |
8990e307 LW |
843 | break; |
844 | case SVt_PVCV: | |
cea2e8a9 | 845 | Perl_croak(aTHX_ "panic: leave_scope pad code"); |
5377b701 CS |
846 | case SVt_RV: |
847 | case SVt_IV: | |
848 | case SVt_NV: | |
849 | (void)SvOK_off(sv); | |
8990e307 LW |
850 | break; |
851 | default: | |
a0d0e21e | 852 | (void)SvOK_off(sv); |
5377b701 | 853 | (void)SvOOK_off(sv); |
8990e307 LW |
854 | break; |
855 | } | |
856 | } | |
857 | else { /* Someone has a claim on this, so abandon it. */ | |
4aa0a1f7 | 858 | U32 padflags = SvFLAGS(sv) & (SVs_PADBUSY|SVs_PADMY|SVs_PADTMP); |
8990e307 LW |
859 | switch (SvTYPE(sv)) { /* Console ourselves with a new value */ |
860 | case SVt_PVAV: *(SV**)ptr = (SV*)newAV(); break; | |
861 | case SVt_PVHV: *(SV**)ptr = (SV*)newHV(); break; | |
862 | default: *(SV**)ptr = NEWSV(0,0); break; | |
863 | } | |
53868620 | 864 | SvREFCNT_dec(sv); /* Cast current value to the winds. */ |
4aa0a1f7 | 865 | SvFLAGS(*(SV**)ptr) |= padflags; /* preserve pad nature */ |
8990e307 LW |
866 | } |
867 | break; | |
868 | case SAVEt_DELETE: | |
869 | ptr = SSPOPPTR; | |
870 | hv = (HV*)ptr; | |
871 | ptr = SSPOPPTR; | |
748a9306 | 872 | (void)hv_delete(hv, (char*)ptr, (U32)SSPOPINT, G_DISCARD); |
4e4c362e | 873 | SvREFCNT_dec(hv); |
8aacddc1 | 874 | Safefree(ptr); |
8990e307 | 875 | break; |
a0d0e21e LW |
876 | case SAVEt_DESTRUCTOR: |
877 | ptr = SSPOPPTR; | |
146174a9 CB |
878 | (*SSPOPDPTR)(ptr); |
879 | break; | |
880 | case SAVEt_DESTRUCTOR_X: | |
881 | ptr = SSPOPPTR; | |
acfe0abc | 882 | (*SSPOPDXPTR)(aTHX_ ptr); |
a0d0e21e LW |
883 | break; |
884 | case SAVEt_REGCONTEXT: | |
455ece5e | 885 | case SAVEt_ALLOC: |
161b7d16 | 886 | i = SSPOPINT; |
3280af22 | 887 | PL_savestack_ix -= i; /* regexp must have croaked */ |
a0d0e21e | 888 | break; |
55497cff | 889 | case SAVEt_STACK_POS: /* Position on Perl stack */ |
161b7d16 | 890 | i = SSPOPINT; |
3280af22 | 891 | PL_stack_sp = PL_stack_base + i; |
55497cff | 892 | break; |
161b7d16 SM |
893 | case SAVEt_AELEM: /* array element */ |
894 | value = (SV*)SSPOPPTR; | |
895 | i = SSPOPINT; | |
896 | av = (AV*)SSPOPPTR; | |
897 | ptr = av_fetch(av,i,1); | |
4e4c362e GS |
898 | if (ptr) { |
899 | sv = *(SV**)ptr; | |
3280af22 | 900 | if (sv && sv != &PL_sv_undef) { |
14befaf4 | 901 | if (SvTIED_mg((SV*)av, PERL_MAGIC_tied)) |
4e4c362e GS |
902 | (void)SvREFCNT_inc(sv); |
903 | SvREFCNT_dec(av); | |
904 | goto restore_sv; | |
905 | } | |
906 | } | |
907 | SvREFCNT_dec(av); | |
908 | SvREFCNT_dec(value); | |
909 | break; | |
161b7d16 SM |
910 | case SAVEt_HELEM: /* hash element */ |
911 | value = (SV*)SSPOPPTR; | |
9002cb76 | 912 | sv = (SV*)SSPOPPTR; |
161b7d16 SM |
913 | hv = (HV*)SSPOPPTR; |
914 | ptr = hv_fetch_ent(hv, sv, 1, 0); | |
4e4c362e GS |
915 | if (ptr) { |
916 | SV *oval = HeVAL((HE*)ptr); | |
3280af22 | 917 | if (oval && oval != &PL_sv_undef) { |
4e4c362e | 918 | ptr = &HeVAL((HE*)ptr); |
14befaf4 | 919 | if (SvTIED_mg((SV*)hv, PERL_MAGIC_tied)) |
4e4c362e GS |
920 | (void)SvREFCNT_inc(*(SV**)ptr); |
921 | SvREFCNT_dec(hv); | |
922 | SvREFCNT_dec(sv); | |
923 | goto restore_sv; | |
924 | } | |
925 | } | |
926 | SvREFCNT_dec(hv); | |
927 | SvREFCNT_dec(sv); | |
928 | SvREFCNT_dec(value); | |
929 | break; | |
462e5cf6 | 930 | case SAVEt_OP: |
533c011a | 931 | PL_op = (OP*)SSPOPPTR; |
462e5cf6 | 932 | break; |
25eaa213 | 933 | case SAVEt_HINTS: |
3280af22 | 934 | *(I32*)&PL_hints = (I32)SSPOPINT; |
b3ac6de7 | 935 | break; |
cb50131a CB |
936 | case SAVEt_COMPPAD: |
937 | PL_comppad = (AV*)SSPOPPTR; | |
938 | if (PL_comppad) | |
939 | PL_curpad = AvARRAY(PL_comppad); | |
940 | else | |
941 | PL_curpad = Null(SV**); | |
942 | break; | |
c3564e5c GS |
943 | case SAVEt_PADSV: |
944 | { | |
945 | PADOFFSET off = (PADOFFSET)SSPOPLONG; | |
946 | ptr = SSPOPPTR; | |
947 | if (ptr) | |
948 | ((SV**)ptr)[off] = (SV*)SSPOPPTR; | |
949 | } | |
950 | break; | |
79072805 | 951 | default: |
cea2e8a9 | 952 | Perl_croak(aTHX_ "panic: leave_scope inconsistency"); |
79072805 LW |
953 | } |
954 | } | |
955 | } | |
8990e307 | 956 | |
8990e307 | 957 | void |
864dbfa3 | 958 | Perl_cx_dump(pTHX_ PERL_CONTEXT *cx) |
8990e307 | 959 | { |
35ff7856 | 960 | #ifdef DEBUGGING |
22c35a8c | 961 | PerlIO_printf(Perl_debug_log, "CX %ld = %s\n", (long)(cx - cxstack), PL_block_type[CxTYPE(cx)]); |
6b35e009 | 962 | if (CxTYPE(cx) != CXt_SUBST) { |
760ac839 | 963 | PerlIO_printf(Perl_debug_log, "BLK_OLDSP = %ld\n", (long)cx->blk_oldsp); |
146174a9 CB |
964 | PerlIO_printf(Perl_debug_log, "BLK_OLDCOP = 0x%"UVxf"\n", |
965 | PTR2UV(cx->blk_oldcop)); | |
760ac839 LW |
966 | PerlIO_printf(Perl_debug_log, "BLK_OLDMARKSP = %ld\n", (long)cx->blk_oldmarksp); |
967 | PerlIO_printf(Perl_debug_log, "BLK_OLDSCOPESP = %ld\n", (long)cx->blk_oldscopesp); | |
968 | PerlIO_printf(Perl_debug_log, "BLK_OLDRETSP = %ld\n", (long)cx->blk_oldretsp); | |
146174a9 CB |
969 | PerlIO_printf(Perl_debug_log, "BLK_OLDPM = 0x%"UVxf"\n", |
970 | PTR2UV(cx->blk_oldpm)); | |
760ac839 | 971 | PerlIO_printf(Perl_debug_log, "BLK_GIMME = %s\n", cx->blk_gimme ? "LIST" : "SCALAR"); |
8990e307 | 972 | } |
6b35e009 | 973 | switch (CxTYPE(cx)) { |
8990e307 LW |
974 | case CXt_NULL: |
975 | case CXt_BLOCK: | |
976 | break; | |
146174a9 CB |
977 | case CXt_FORMAT: |
978 | PerlIO_printf(Perl_debug_log, "BLK_SUB.CV = 0x%"UVxf"\n", | |
979 | PTR2UV(cx->blk_sub.cv)); | |
980 | PerlIO_printf(Perl_debug_log, "BLK_SUB.GV = 0x%"UVxf"\n", | |
981 | PTR2UV(cx->blk_sub.gv)); | |
982 | PerlIO_printf(Perl_debug_log, "BLK_SUB.DFOUTGV = 0x%"UVxf"\n", | |
983 | PTR2UV(cx->blk_sub.dfoutgv)); | |
984 | PerlIO_printf(Perl_debug_log, "BLK_SUB.HASARGS = %d\n", | |
985 | (int)cx->blk_sub.hasargs); | |
986 | break; | |
8990e307 | 987 | case CXt_SUB: |
146174a9 CB |
988 | PerlIO_printf(Perl_debug_log, "BLK_SUB.CV = 0x%"UVxf"\n", |
989 | PTR2UV(cx->blk_sub.cv)); | |
760ac839 | 990 | PerlIO_printf(Perl_debug_log, "BLK_SUB.OLDDEPTH = %ld\n", |
8990e307 | 991 | (long)cx->blk_sub.olddepth); |
760ac839 | 992 | PerlIO_printf(Perl_debug_log, "BLK_SUB.HASARGS = %d\n", |
8990e307 | 993 | (int)cx->blk_sub.hasargs); |
146174a9 CB |
994 | PerlIO_printf(Perl_debug_log, "BLK_SUB.LVAL = %d\n", |
995 | (int)cx->blk_sub.lval); | |
8990e307 LW |
996 | break; |
997 | case CXt_EVAL: | |
760ac839 | 998 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_IN_EVAL = %ld\n", |
8990e307 | 999 | (long)cx->blk_eval.old_in_eval); |
760ac839 | 1000 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_OP_TYPE = %s (%s)\n", |
22c35a8c GS |
1001 | PL_op_name[cx->blk_eval.old_op_type], |
1002 | PL_op_desc[cx->blk_eval.old_op_type]); | |
0f79a09d GS |
1003 | if (cx->blk_eval.old_namesv) |
1004 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_NAME = %s\n", | |
1005 | SvPVX(cx->blk_eval.old_namesv)); | |
146174a9 CB |
1006 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_EVAL_ROOT = 0x%"UVxf"\n", |
1007 | PTR2UV(cx->blk_eval.old_eval_root)); | |
8990e307 LW |
1008 | break; |
1009 | ||
1010 | case CXt_LOOP: | |
760ac839 | 1011 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.LABEL = %s\n", |
8990e307 | 1012 | cx->blk_loop.label); |
760ac839 | 1013 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.RESETSP = %ld\n", |
8990e307 | 1014 | (long)cx->blk_loop.resetsp); |
146174a9 CB |
1015 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.REDO_OP = 0x%"UVxf"\n", |
1016 | PTR2UV(cx->blk_loop.redo_op)); | |
1017 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.NEXT_OP = 0x%"UVxf"\n", | |
1018 | PTR2UV(cx->blk_loop.next_op)); | |
1019 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.LAST_OP = 0x%"UVxf"\n", | |
1020 | PTR2UV(cx->blk_loop.last_op)); | |
760ac839 | 1021 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERIX = %ld\n", |
8990e307 | 1022 | (long)cx->blk_loop.iterix); |
146174a9 CB |
1023 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERARY = 0x%"UVxf"\n", |
1024 | PTR2UV(cx->blk_loop.iterary)); | |
1025 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERVAR = 0x%"UVxf"\n", | |
1026 | PTR2UV(CxITERVAR(cx))); | |
1027 | if (CxITERVAR(cx)) | |
1028 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERSAVE = 0x%"UVxf"\n", | |
1029 | PTR2UV(cx->blk_loop.itersave)); | |
1030 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERLVAL = 0x%"UVxf"\n", | |
1031 | PTR2UV(cx->blk_loop.iterlval)); | |
8990e307 LW |
1032 | break; |
1033 | ||
1034 | case CXt_SUBST: | |
760ac839 | 1035 | PerlIO_printf(Perl_debug_log, "SB_ITERS = %ld\n", |
8990e307 | 1036 | (long)cx->sb_iters); |
760ac839 | 1037 | PerlIO_printf(Perl_debug_log, "SB_MAXITERS = %ld\n", |
8990e307 | 1038 | (long)cx->sb_maxiters); |
35ef4773 GS |
1039 | PerlIO_printf(Perl_debug_log, "SB_RFLAGS = %ld\n", |
1040 | (long)cx->sb_rflags); | |
760ac839 | 1041 | PerlIO_printf(Perl_debug_log, "SB_ONCE = %ld\n", |
8990e307 | 1042 | (long)cx->sb_once); |
760ac839 | 1043 | PerlIO_printf(Perl_debug_log, "SB_ORIG = %s\n", |
8990e307 | 1044 | cx->sb_orig); |
146174a9 CB |
1045 | PerlIO_printf(Perl_debug_log, "SB_DSTR = 0x%"UVxf"\n", |
1046 | PTR2UV(cx->sb_dstr)); | |
1047 | PerlIO_printf(Perl_debug_log, "SB_TARG = 0x%"UVxf"\n", | |
1048 | PTR2UV(cx->sb_targ)); | |
1049 | PerlIO_printf(Perl_debug_log, "SB_S = 0x%"UVxf"\n", | |
1050 | PTR2UV(cx->sb_s)); | |
1051 | PerlIO_printf(Perl_debug_log, "SB_M = 0x%"UVxf"\n", | |
1052 | PTR2UV(cx->sb_m)); | |
1053 | PerlIO_printf(Perl_debug_log, "SB_STREND = 0x%"UVxf"\n", | |
1054 | PTR2UV(cx->sb_strend)); | |
1055 | PerlIO_printf(Perl_debug_log, "SB_RXRES = 0x%"UVxf"\n", | |
1056 | PTR2UV(cx->sb_rxres)); | |
8990e307 LW |
1057 | break; |
1058 | } | |
17c3b450 | 1059 | #endif /* DEBUGGING */ |
35ff7856 | 1060 | } |