Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* gv.c |
79072805 | 2 | * |
9607fc9c | 3 | * Copyright (c) 1991-1997, 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 | * 'Mercy!' cried Gandalf. 'If the giving of information is to be the cure | |
12 | * of your inquisitiveness, I shall spend all the rest of my days answering | |
13 | * you. What more do you want to know?' | |
14 | * 'The names of all the stars, and of all living things, and the whole | |
15 | * history of Middle-earth and Over-heaven and of the Sundering Seas,' | |
16 | * laughed Pippin. | |
79072805 LW |
17 | */ |
18 | ||
19 | #include "EXTERN.h" | |
20 | #include "perl.h" | |
21 | ||
22 | GV * | |
8ac85365 | 23 | gv_AVadd(register GV *gv) |
79072805 | 24 | { |
a0d0e21e LW |
25 | if (!gv || SvTYPE((SV*)gv) != SVt_PVGV) |
26 | croak("Bad symbol for array"); | |
79072805 LW |
27 | if (!GvAV(gv)) |
28 | GvAV(gv) = newAV(); | |
29 | return gv; | |
30 | } | |
31 | ||
32 | GV * | |
8ac85365 | 33 | gv_HVadd(register GV *gv) |
79072805 | 34 | { |
a0d0e21e LW |
35 | if (!gv || SvTYPE((SV*)gv) != SVt_PVGV) |
36 | croak("Bad symbol for hash"); | |
79072805 | 37 | if (!GvHV(gv)) |
463ee0b2 | 38 | GvHV(gv) = newHV(); |
79072805 LW |
39 | return gv; |
40 | } | |
41 | ||
42 | GV * | |
8ac85365 | 43 | gv_IOadd(register GV *gv) |
a0d0e21e LW |
44 | { |
45 | if (!gv || SvTYPE((SV*)gv) != SVt_PVGV) | |
46 | croak("Bad symbol for filehandle"); | |
47 | if (!GvIOp(gv)) | |
48 | GvIOp(gv) = newIO(); | |
49 | return gv; | |
50 | } | |
51 | ||
52 | GV * | |
8ac85365 | 53 | gv_fetchfile(char *name) |
79072805 | 54 | { |
e858de61 | 55 | dTHR; |
53d95988 CS |
56 | char smallbuf[256]; |
57 | char *tmpbuf; | |
8ebc5c01 | 58 | STRLEN tmplen; |
79072805 LW |
59 | GV *gv; |
60 | ||
53d95988 CS |
61 | tmplen = strlen(name) + 2; |
62 | if (tmplen < sizeof smallbuf) | |
63 | tmpbuf = smallbuf; | |
64 | else | |
65 | New(603, tmpbuf, tmplen + 1, char); | |
66 | tmpbuf[0] = '_'; | |
67 | tmpbuf[1] = '<'; | |
68 | strcpy(tmpbuf + 2, name); | |
3280af22 | 69 | gv = *(GV**)hv_fetch(PL_defstash, tmpbuf, tmplen, TRUE); |
8ebc5c01 | 70 | if (!isGV(gv)) |
3280af22 | 71 | gv_init(gv, PL_defstash, tmpbuf, tmplen, FALSE); |
53d95988 CS |
72 | if (tmpbuf != smallbuf) |
73 | Safefree(tmpbuf); | |
79072805 | 74 | sv_setpv(GvSV(gv), name); |
8ebc5c01 | 75 | if (*name == '/' && (instr(name, "/lib/") || instr(name, ".pm"))) |
a5f75d66 | 76 | GvMULTI_on(gv); |
84902520 | 77 | if (PERLDB_LINE) |
93a17b20 | 78 | hv_magic(GvHVn(gv_AVadd(gv)), gv, 'L'); |
79072805 LW |
79 | return gv; |
80 | } | |
81 | ||
463ee0b2 | 82 | void |
8ac85365 | 83 | gv_init(GV *gv, HV *stash, char *name, STRLEN len, int multi) |
463ee0b2 | 84 | { |
0f15f207 | 85 | dTHR; |
463ee0b2 | 86 | register GP *gp; |
55d729e4 GS |
87 | bool doproto = SvTYPE(gv) > SVt_NULL; |
88 | char *proto = (doproto && SvPOK(gv)) ? SvPVX(gv) : NULL; | |
463ee0b2 | 89 | |
dc437b57 | 90 | sv_upgrade((SV*)gv, SVt_PVGV); |
55d729e4 GS |
91 | if (SvLEN(gv)) { |
92 | if (proto) { | |
93 | SvPVX(gv) = NULL; | |
94 | SvLEN(gv) = 0; | |
95 | SvPOK_off(gv); | |
96 | } else | |
97 | Safefree(SvPVX(gv)); | |
98 | } | |
44a8e56a | 99 | Newz(602, gp, 1, GP); |
8990e307 | 100 | GvGP(gv) = gp_ref(gp); |
463ee0b2 | 101 | GvSV(gv) = NEWSV(72,0); |
3280af22 NIS |
102 | GvLINE(gv) = PL_curcop->cop_line; |
103 | GvFILEGV(gv) = PL_curcop->cop_filegv; | |
005a453c | 104 | GvCVGEN(gv) = 0; |
463ee0b2 LW |
105 | GvEGV(gv) = gv; |
106 | sv_magic((SV*)gv, (SV*)gv, '*', name, len); | |
85aff577 | 107 | GvSTASH(gv) = (HV*)SvREFCNT_inc(stash); |
a0d0e21e | 108 | GvNAME(gv) = savepvn(name, len); |
463ee0b2 LW |
109 | GvNAMELEN(gv) = len; |
110 | if (multi) | |
a5f75d66 | 111 | GvMULTI_on(gv); |
55d729e4 | 112 | if (doproto) { /* Replicate part of newSUB here. */ |
57ff9a15 | 113 | SvIOK_off(gv); |
55d729e4 GS |
114 | ENTER; |
115 | start_subparse(0,0); /* Create CV in compcv. */ | |
3280af22 | 116 | GvCV(gv) = PL_compcv; |
55d729e4 GS |
117 | LEAVE; |
118 | ||
3280af22 | 119 | PL_sub_generation++; |
55d729e4 | 120 | CvGV(GvCV(gv)) = (GV*)SvREFCNT_inc(gv); |
3280af22 NIS |
121 | CvFILEGV(GvCV(gv)) = PL_curcop->cop_filegv; |
122 | CvSTASH(GvCV(gv)) = PL_curstash; | |
55d729e4 GS |
123 | #ifdef USE_THREADS |
124 | CvOWNER(GvCV(gv)) = 0; | |
1cfa4ec7 | 125 | if (!CvMUTEXP(GvCV(gv))) { |
b0a484d2 | 126 | New(666, CvMUTEXP(GvCV(gv)), 1, perl_mutex); |
1cfa4ec7 GS |
127 | MUTEX_INIT(CvMUTEXP(GvCV(gv))); |
128 | } | |
55d729e4 GS |
129 | #endif /* USE_THREADS */ |
130 | if (proto) { | |
131 | sv_setpv((SV*)GvCV(gv), proto); | |
132 | Safefree(proto); | |
133 | } | |
134 | } | |
463ee0b2 LW |
135 | } |
136 | ||
76e3520e | 137 | STATIC void |
8ac85365 | 138 | gv_init_sv(GV *gv, I32 sv_type) |
a0d0e21e LW |
139 | { |
140 | switch (sv_type) { | |
141 | case SVt_PVIO: | |
142 | (void)GvIOn(gv); | |
143 | break; | |
144 | case SVt_PVAV: | |
145 | (void)GvAVn(gv); | |
146 | break; | |
147 | case SVt_PVHV: | |
148 | (void)GvHVn(gv); | |
149 | break; | |
150 | } | |
151 | } | |
152 | ||
79072805 | 153 | GV * |
8ac85365 | 154 | gv_fetchmeth(HV *stash, char *name, STRLEN len, I32 level) |
79072805 LW |
155 | { |
156 | AV* av; | |
463ee0b2 | 157 | GV* topgv; |
79072805 | 158 | GV* gv; |
463ee0b2 | 159 | GV** gvp; |
748a9306 | 160 | CV* cv; |
a0d0e21e LW |
161 | |
162 | if (!stash) | |
163 | return 0; | |
44a8e56a | 164 | if ((level > 100) || (level < -100)) |
3e0ccd42 JP |
165 | croak("Recursive inheritance detected while looking for method '%s' in package '%s'", |
166 | name, HvNAME(stash)); | |
463ee0b2 | 167 | |
463ee0b2 | 168 | DEBUG_o( deb("Looking for method %s in package %s\n",name,HvNAME(stash)) ); |
44a8e56a | 169 | |
170 | gvp = (GV**)hv_fetch(stash, name, len, (level >= 0)); | |
171 | if (!gvp) | |
172 | topgv = Nullgv; | |
173 | else { | |
174 | topgv = *gvp; | |
175 | if (SvTYPE(topgv) != SVt_PVGV) | |
176 | gv_init(topgv, stash, name, len, TRUE); | |
177 | if (cv = GvCV(topgv)) { | |
178 | /* If genuine method or valid cache entry, use it */ | |
3280af22 | 179 | if (!GvCVGEN(topgv) || GvCVGEN(topgv) == PL_sub_generation) |
7a4c00b4 | 180 | return topgv; |
44a8e56a | 181 | /* Stale cached entry: junk it */ |
182 | SvREFCNT_dec(cv); | |
183 | GvCV(topgv) = cv = Nullcv; | |
184 | GvCVGEN(topgv) = 0; | |
748a9306 | 185 | } |
3280af22 | 186 | else if (GvCVGEN(topgv) == PL_sub_generation) |
005a453c | 187 | return 0; /* cache indicates sub doesn't exist */ |
463ee0b2 | 188 | } |
79072805 | 189 | |
9607fc9c | 190 | gvp = (GV**)hv_fetch(stash, "ISA", 3, FALSE); |
3280af22 | 191 | av = (gvp && (gv = *gvp) && gv != (GV*)&PL_sv_undef) ? GvAV(gv) : Nullav; |
9607fc9c | 192 | |
fb73857a | 193 | /* create and re-create @.*::SUPER::ISA on demand */ |
194 | if (!av || !SvMAGIC(av)) { | |
9607fc9c | 195 | char* packname = HvNAME(stash); |
196 | STRLEN packlen = strlen(packname); | |
197 | ||
198 | if (packlen >= 7 && strEQ(packname + packlen - 7, "::SUPER")) { | |
199 | HV* basestash; | |
200 | ||
201 | packlen -= 7; | |
202 | basestash = gv_stashpvn(packname, packlen, TRUE); | |
203 | gvp = (GV**)hv_fetch(basestash, "ISA", 3, FALSE); | |
3280af22 | 204 | if (gvp && (gv = *gvp) != (GV*)&PL_sv_undef && (av = GvAV(gv))) { |
e858de61 | 205 | dTHR; /* just for SvREFCNT_dec */ |
9607fc9c | 206 | gvp = (GV**)hv_fetch(stash, "ISA", 3, TRUE); |
207 | if (!gvp || !(gv = *gvp)) | |
208 | croak("Cannot create %s::ISA", HvNAME(stash)); | |
209 | if (SvTYPE(gv) != SVt_PVGV) | |
210 | gv_init(gv, stash, "ISA", 3, TRUE); | |
211 | SvREFCNT_dec(GvAV(gv)); | |
212 | GvAV(gv) = (AV*)SvREFCNT_inc(av); | |
213 | } | |
214 | } | |
215 | } | |
216 | ||
217 | if (av) { | |
79072805 | 218 | SV** svp = AvARRAY(av); |
93965878 NIS |
219 | /* NOTE: No support for tied ISA */ |
220 | I32 items = AvFILLp(av) + 1; | |
79072805 | 221 | while (items--) { |
79072805 | 222 | SV* sv = *svp++; |
a0d0e21e | 223 | HV* basestash = gv_stashsv(sv, FALSE); |
9bbf4081 | 224 | if (!basestash) { |
d008e5eb | 225 | dTHR; /* just for ckWARN */ |
599cee73 PM |
226 | if (ckWARN(WARN_MISC)) |
227 | warner(WARN_MISC, "Can't locate package %s for @%s::ISA", | |
463ee0b2 | 228 | SvPVX(sv), HvNAME(stash)); |
79072805 LW |
229 | continue; |
230 | } | |
44a8e56a | 231 | gv = gv_fetchmeth(basestash, name, len, |
232 | (level >= 0) ? level + 1 : level - 1); | |
233 | if (gv) | |
234 | goto gotcha; | |
79072805 LW |
235 | } |
236 | } | |
a0d0e21e | 237 | |
9607fc9c | 238 | /* if at top level, try UNIVERSAL */ |
239 | ||
44a8e56a | 240 | if (level == 0 || level == -1) { |
9607fc9c | 241 | HV* lastchance; |
242 | ||
dc437b57 | 243 | if (lastchance = gv_stashpvn("UNIVERSAL", 9, FALSE)) { |
44a8e56a | 244 | if (gv = gv_fetchmeth(lastchance, name, len, |
245 | (level >= 0) ? level + 1 : level - 1)) { | |
246 | gotcha: | |
dc848c6f | 247 | /* |
248 | * Cache method in topgv if: | |
249 | * 1. topgv has no synonyms (else inheritance crosses wires) | |
250 | * 2. method isn't a stub (else AUTOLOAD fails spectacularly) | |
251 | */ | |
252 | if (topgv && | |
253 | GvREFCNT(topgv) == 1 && | |
254 | (cv = GvCV(gv)) && | |
255 | (CvROOT(cv) || CvXSUB(cv))) | |
256 | { | |
44a8e56a | 257 | if (cv = GvCV(topgv)) |
258 | SvREFCNT_dec(cv); | |
259 | GvCV(topgv) = (CV*)SvREFCNT_inc(GvCV(gv)); | |
3280af22 | 260 | GvCVGEN(topgv) = PL_sub_generation; |
44a8e56a | 261 | } |
a0d0e21e LW |
262 | return gv; |
263 | } | |
005a453c JP |
264 | else if (topgv && GvREFCNT(topgv) == 1) { |
265 | /* cache the fact that the method is not defined */ | |
3280af22 | 266 | GvCVGEN(topgv) = PL_sub_generation; |
005a453c | 267 | } |
a0d0e21e LW |
268 | } |
269 | } | |
270 | ||
79072805 LW |
271 | return 0; |
272 | } | |
273 | ||
274 | GV * | |
8ac85365 | 275 | gv_fetchmethod(HV *stash, char *name) |
463ee0b2 | 276 | { |
dc848c6f | 277 | return gv_fetchmethod_autoload(stash, name, TRUE); |
278 | } | |
279 | ||
280 | GV * | |
8ac85365 | 281 | gv_fetchmethod_autoload(HV *stash, char *name, I32 autoload) |
dc848c6f | 282 | { |
0f15f207 | 283 | dTHR; |
463ee0b2 | 284 | register char *nend; |
a0d0e21e LW |
285 | char *nsplit = 0; |
286 | GV* gv; | |
463ee0b2 LW |
287 | |
288 | for (nend = name; *nend; nend++) { | |
9607fc9c | 289 | if (*nend == '\'') |
a0d0e21e | 290 | nsplit = nend; |
9607fc9c | 291 | else if (*nend == ':' && *(nend + 1) == ':') |
292 | nsplit = ++nend; | |
a0d0e21e LW |
293 | } |
294 | if (nsplit) { | |
a0d0e21e LW |
295 | char *origname = name; |
296 | name = nsplit + 1; | |
a0d0e21e LW |
297 | if (*nsplit == ':') |
298 | --nsplit; | |
9607fc9c | 299 | if ((nsplit - origname) == 5 && strnEQ(origname, "SUPER", 5)) { |
300 | /* ->SUPER::method should really be looked up in original stash */ | |
fc36a67e | 301 | SV *tmpstr = sv_2mortal(newSVpvf("%s::SUPER", |
3280af22 | 302 | HvNAME(PL_curcop->cop_stash))); |
9607fc9c | 303 | stash = gv_stashpvn(SvPVX(tmpstr), SvCUR(tmpstr), TRUE); |
304 | DEBUG_o( deb("Treating %s as %s::%s\n", | |
305 | origname, HvNAME(stash), name) ); | |
4633a7c4 | 306 | } |
9607fc9c | 307 | else |
308 | stash = gv_stashpvn(origname, nsplit - origname, TRUE); | |
4633a7c4 LW |
309 | } |
310 | ||
9607fc9c | 311 | gv = gv_fetchmeth(stash, name, nend - name, 0); |
a0d0e21e | 312 | if (!gv) { |
702887b4 | 313 | if (strEQ(name,"import")) |
3280af22 | 314 | gv = (GV*)&PL_sv_yes; |
dc848c6f | 315 | else if (autoload) |
54310121 | 316 | gv = gv_autoload4(stash, name, nend - name, TRUE); |
463ee0b2 | 317 | } |
dc848c6f | 318 | else if (autoload) { |
319 | CV* cv = GvCV(gv); | |
09280a33 CS |
320 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
321 | GV* stubgv; | |
322 | GV* autogv; | |
323 | ||
324 | if (CvANON(cv)) | |
325 | stubgv = gv; | |
326 | else { | |
327 | stubgv = CvGV(cv); | |
328 | if (GvCV(stubgv) != cv) /* orphaned import */ | |
329 | stubgv = gv; | |
330 | } | |
331 | autogv = gv_autoload4(GvSTASH(stubgv), | |
332 | GvNAME(stubgv), GvNAMELEN(stubgv), TRUE); | |
dc848c6f | 333 | if (autogv) |
334 | gv = autogv; | |
335 | } | |
336 | } | |
44a8e56a | 337 | |
338 | return gv; | |
339 | } | |
340 | ||
341 | GV* | |
8ac85365 | 342 | gv_autoload4(HV *stash, char *name, STRLEN len, I32 method) |
44a8e56a | 343 | { |
d008e5eb | 344 | dTHR; |
44a8e56a | 345 | static char autoload[] = "AUTOLOAD"; |
346 | static STRLEN autolen = 8; | |
347 | GV* gv; | |
348 | CV* cv; | |
349 | HV* varstash; | |
350 | GV* vargv; | |
351 | SV* varsv; | |
352 | ||
353 | if (len == autolen && strnEQ(name, autoload, autolen)) | |
354 | return Nullgv; | |
dc848c6f | 355 | if (!(gv = gv_fetchmeth(stash, autoload, autolen, FALSE))) |
356 | return Nullgv; | |
357 | cv = GvCV(gv); | |
358 | ||
359 | /* | |
360 | * Inheriting AUTOLOAD for non-methods works ... for now. | |
361 | */ | |
599cee73 PM |
362 | if (ckWARN(WARN_DEPRECATED) && !method && |
363 | (GvCVGEN(gv) || GvSTASH(gv) != stash)) | |
364 | warner(WARN_DEPRECATED, | |
dc848c6f | 365 | "Use of inherited AUTOLOAD for non-method %s::%.*s() is deprecated", |
366 | HvNAME(stash), (int)len, name); | |
44a8e56a | 367 | |
368 | /* | |
369 | * Given &FOO::AUTOLOAD, set $FOO::AUTOLOAD to desired function name. | |
370 | * The subroutine's original name may not be "AUTOLOAD", so we don't | |
371 | * use that, but for lack of anything better we will use the sub's | |
372 | * original package to look up $AUTOLOAD. | |
373 | */ | |
374 | varstash = GvSTASH(CvGV(cv)); | |
375 | vargv = *(GV**)hv_fetch(varstash, autoload, autolen, TRUE); | |
376 | if (!isGV(vargv)) | |
377 | gv_init(vargv, varstash, autoload, autolen, FALSE); | |
378 | varsv = GvSV(vargv); | |
379 | sv_setpv(varsv, HvNAME(stash)); | |
380 | sv_catpvn(varsv, "::", 2); | |
381 | sv_catpvn(varsv, name, len); | |
382 | SvTAINTED_off(varsv); | |
a0d0e21e LW |
383 | return gv; |
384 | } | |
385 | ||
386 | HV* | |
8ac85365 | 387 | gv_stashpv(char *name, I32 create) |
a0d0e21e | 388 | { |
dc437b57 | 389 | return gv_stashpvn(name, strlen(name), create); |
390 | } | |
391 | ||
392 | HV* | |
8ac85365 | 393 | gv_stashpvn(char *name, U32 namelen, I32 create) |
dc437b57 | 394 | { |
46fc3d4c | 395 | char smallbuf[256]; |
396 | char *tmpbuf; | |
a0d0e21e LW |
397 | HV *stash; |
398 | GV *tmpgv; | |
dc437b57 | 399 | |
46fc3d4c | 400 | if (namelen + 3 < sizeof smallbuf) |
401 | tmpbuf = smallbuf; | |
402 | else | |
403 | New(606, tmpbuf, namelen + 3, char); | |
dc437b57 | 404 | Copy(name,tmpbuf,namelen,char); |
405 | tmpbuf[namelen++] = ':'; | |
406 | tmpbuf[namelen++] = ':'; | |
407 | tmpbuf[namelen] = '\0'; | |
46fc3d4c | 408 | tmpgv = gv_fetchpv(tmpbuf, create, SVt_PVHV); |
409 | if (tmpbuf != smallbuf) | |
410 | Safefree(tmpbuf); | |
a0d0e21e LW |
411 | if (!tmpgv) |
412 | return 0; | |
413 | if (!GvHV(tmpgv)) | |
414 | GvHV(tmpgv) = newHV(); | |
415 | stash = GvHV(tmpgv); | |
416 | if (!HvNAME(stash)) | |
417 | HvNAME(stash) = savepv(name); | |
418 | return stash; | |
463ee0b2 LW |
419 | } |
420 | ||
a0d0e21e | 421 | HV* |
8ac85365 | 422 | gv_stashsv(SV *sv, I32 create) |
a0d0e21e | 423 | { |
dc437b57 | 424 | register char *ptr; |
425 | STRLEN len; | |
426 | ptr = SvPV(sv,len); | |
427 | return gv_stashpvn(ptr, len, create); | |
a0d0e21e LW |
428 | } |
429 | ||
430 | ||
463ee0b2 | 431 | GV * |
8ac85365 | 432 | gv_fetchpv(char *nambeg, I32 add, I32 sv_type) |
79072805 | 433 | { |
11343788 | 434 | dTHR; |
463ee0b2 LW |
435 | register char *name = nambeg; |
436 | register GV *gv = 0; | |
79072805 | 437 | GV**gvp; |
79072805 LW |
438 | I32 len; |
439 | register char *namend; | |
463ee0b2 | 440 | HV *stash = 0; |
9607fc9c | 441 | U32 add_gvflags = 0; |
79072805 | 442 | |
c07a80fd | 443 | if (*name == '*' && isALPHA(name[1])) /* accidental stringify on a GV? */ |
444 | name++; | |
445 | ||
79072805 | 446 | for (namend = name; *namend; namend++) { |
463ee0b2 LW |
447 | if ((*namend == '\'' && namend[1]) || |
448 | (*namend == ':' && namend[1] == ':')) | |
449 | { | |
463ee0b2 | 450 | if (!stash) |
3280af22 | 451 | stash = PL_defstash; |
dc437b57 | 452 | if (!stash || !SvREFCNT(stash)) /* symbol table under destruction */ |
a0d0e21e | 453 | return Nullgv; |
463ee0b2 | 454 | |
85e6fe83 LW |
455 | len = namend - name; |
456 | if (len > 0) { | |
3c78fafa | 457 | char smallbuf[256]; |
62b57502 | 458 | char *tmpbuf; |
62b57502 | 459 | |
3c78fafa GS |
460 | if (len + 3 < sizeof smallbuf) |
461 | tmpbuf = smallbuf; | |
62b57502 MB |
462 | else |
463 | New(601, tmpbuf, len+3, char); | |
a0d0e21e LW |
464 | Copy(name, tmpbuf, len, char); |
465 | tmpbuf[len++] = ':'; | |
466 | tmpbuf[len++] = ':'; | |
467 | tmpbuf[len] = '\0'; | |
463ee0b2 | 468 | gvp = (GV**)hv_fetch(stash,tmpbuf,len,add); |
6fa846a0 | 469 | gv = gvp ? *gvp : Nullgv; |
3280af22 | 470 | if (gv && gv != (GV*)&PL_sv_undef) { |
6fa846a0 | 471 | if (SvTYPE(gv) != SVt_PVGV) |
0f303493 | 472 | gv_init(gv, stash, tmpbuf, len, (add & GV_ADDMULTI)); |
6fa846a0 GS |
473 | else |
474 | GvMULTI_on(gv); | |
475 | } | |
3c78fafa | 476 | if (tmpbuf != smallbuf) |
62b57502 | 477 | Safefree(tmpbuf); |
3280af22 | 478 | if (!gv || gv == (GV*)&PL_sv_undef) |
a0d0e21e | 479 | return Nullgv; |
85e6fe83 | 480 | |
463ee0b2 LW |
481 | if (!(stash = GvHV(gv))) |
482 | stash = GvHV(gv) = newHV(); | |
85e6fe83 | 483 | |
463ee0b2 | 484 | if (!HvNAME(stash)) |
a0d0e21e | 485 | HvNAME(stash) = savepvn(nambeg, namend - nambeg); |
463ee0b2 LW |
486 | } |
487 | ||
488 | if (*namend == ':') | |
489 | namend++; | |
490 | namend++; | |
491 | name = namend; | |
492 | if (!*name) | |
3280af22 | 493 | return gv ? gv : (GV*)*hv_fetch(PL_defstash, "main::", 6, TRUE); |
79072805 | 494 | } |
79072805 | 495 | } |
a0d0e21e LW |
496 | len = namend - name; |
497 | if (!len) | |
498 | len = 1; | |
463ee0b2 LW |
499 | |
500 | /* No stash in name, so see how we can default */ | |
501 | ||
502 | if (!stash) { | |
b86a2fa7 GS |
503 | if (isIDFIRST(*name) |
504 | || (IN_UTF8 && ((*name & 0xc0) == 0xc0) && isIDFIRST_utf8((U8*)name))) | |
505 | { | |
9607fc9c | 506 | bool global = FALSE; |
507 | ||
463ee0b2 | 508 | if (isUPPER(*name)) { |
9d116dd7 JH |
509 | if (*name == 'S' && ( |
510 | strEQ(name, "SIG") || | |
511 | strEQ(name, "STDIN") || | |
512 | strEQ(name, "STDOUT") || | |
513 | strEQ(name, "STDERR"))) | |
514 | global = TRUE; | |
515 | else if (*name == 'I' && strEQ(name, "INC")) | |
516 | global = TRUE; | |
517 | else if (*name == 'E' && strEQ(name, "ENV")) | |
518 | global = TRUE; | |
463ee0b2 LW |
519 | else if (*name == 'A' && ( |
520 | strEQ(name, "ARGV") || | |
9d116dd7 | 521 | strEQ(name, "ARGVOUT"))) |
463ee0b2 LW |
522 | global = TRUE; |
523 | } | |
524 | else if (*name == '_' && !name[1]) | |
525 | global = TRUE; | |
9607fc9c | 526 | |
463ee0b2 | 527 | if (global) |
3280af22 NIS |
528 | stash = PL_defstash; |
529 | else if ((COP*)PL_curcop == &PL_compiling) { | |
530 | stash = PL_curstash; | |
531 | if (add && (PL_hints & HINT_STRICT_VARS) && | |
748a9306 LW |
532 | sv_type != SVt_PVCV && |
533 | sv_type != SVt_PVGV && | |
4633a7c4 | 534 | sv_type != SVt_PVFM && |
c07a80fd | 535 | sv_type != SVt_PVIO && |
377b8fbc | 536 | !(len == 1 && sv_type == SVt_PV && strchr("ab",*name)) ) |
748a9306 | 537 | { |
4633a7c4 LW |
538 | gvp = (GV**)hv_fetch(stash,name,len,0); |
539 | if (!gvp || | |
3280af22 | 540 | *gvp == (GV*)&PL_sv_undef || |
a5f75d66 AD |
541 | SvTYPE(*gvp) != SVt_PVGV) |
542 | { | |
4633a7c4 | 543 | stash = 0; |
a5f75d66 AD |
544 | } |
545 | else if (sv_type == SVt_PV && !GvIMPORTED_SV(*gvp) || | |
546 | sv_type == SVt_PVAV && !GvIMPORTED_AV(*gvp) || | |
547 | sv_type == SVt_PVHV && !GvIMPORTED_HV(*gvp) ) | |
4633a7c4 | 548 | { |
a5f75d66 | 549 | warn("Variable \"%c%s\" is not imported", |
4633a7c4 LW |
550 | sv_type == SVt_PVAV ? '@' : |
551 | sv_type == SVt_PVHV ? '%' : '$', | |
552 | name); | |
8ebc5c01 | 553 | if (GvCVu(*gvp)) |
4633a7c4 | 554 | warn("(Did you mean &%s instead?)\n", name); |
a0d0e21e | 555 | stash = 0; |
4633a7c4 | 556 | } |
a0d0e21e | 557 | } |
85e6fe83 | 558 | } |
463ee0b2 | 559 | else |
3280af22 | 560 | stash = PL_curcop->cop_stash; |
463ee0b2 LW |
561 | } |
562 | else | |
3280af22 | 563 | stash = PL_defstash; |
463ee0b2 LW |
564 | } |
565 | ||
566 | /* By this point we should have a stash and a name */ | |
567 | ||
a0d0e21e | 568 | if (!stash) { |
93233ece | 569 | if (!add) |
a0d0e21e | 570 | return Nullgv; |
462551cc | 571 | { |
2c4aebbd T |
572 | char sv_type_char = ((sv_type == SVt_PV) ? '$' |
573 | : (sv_type == SVt_PVAV) ? '@' | |
574 | : (sv_type == SVt_PVHV) ? '%' | |
575 | : 0); | |
576 | if (sv_type_char) | |
577 | warn("Global symbol \"%c%s\" requires explicit package name", | |
578 | sv_type_char, name); | |
579 | else | |
93233ece CS |
580 | warn("Global symbol \"%s\" requires explicit package name", |
581 | name); | |
a0d0e21e | 582 | } |
3280af22 NIS |
583 | ++PL_error_count; |
584 | stash = PL_curstash ? PL_curstash : PL_defstash; /* avoid core dumps */ | |
93233ece CS |
585 | add_gvflags = ((sv_type == SVt_PV) ? GVf_IMPORTED_SV |
586 | : (sv_type == SVt_PVAV) ? GVf_IMPORTED_AV | |
587 | : (sv_type == SVt_PVHV) ? GVf_IMPORTED_HV | |
588 | : 0); | |
a0d0e21e LW |
589 | } |
590 | ||
591 | if (!SvREFCNT(stash)) /* symbol table under destruction */ | |
592 | return Nullgv; | |
593 | ||
79072805 | 594 | gvp = (GV**)hv_fetch(stash,name,len,add); |
3280af22 | 595 | if (!gvp || *gvp == (GV*)&PL_sv_undef) |
79072805 LW |
596 | return Nullgv; |
597 | gv = *gvp; | |
598 | if (SvTYPE(gv) == SVt_PVGV) { | |
a0d0e21e | 599 | if (add) { |
a5f75d66 | 600 | GvMULTI_on(gv); |
a0d0e21e LW |
601 | gv_init_sv(gv, sv_type); |
602 | } | |
79072805 | 603 | return gv; |
55d729e4 GS |
604 | } else if (add & GV_NOINIT) { |
605 | return gv; | |
79072805 | 606 | } |
93a17b20 LW |
607 | |
608 | /* Adding a new symbol */ | |
609 | ||
55d729e4 | 610 | if (add & GV_ADDWARN) |
a0d0e21e | 611 | warn("Had to create %s unexpectedly", nambeg); |
55d729e4 | 612 | gv_init(gv, stash, name, len, add & GV_ADDMULTI); |
a0d0e21e | 613 | gv_init_sv(gv, sv_type); |
9607fc9c | 614 | GvFLAGS(gv) |= add_gvflags; |
93a17b20 LW |
615 | |
616 | /* set up magic where warranted */ | |
617 | switch (*name) { | |
a0d0e21e LW |
618 | case 'A': |
619 | if (strEQ(name, "ARGV")) { | |
620 | IoFLAGS(GvIOn(gv)) |= IOf_ARGV|IOf_START; | |
621 | } | |
622 | break; | |
623 | ||
ed6116ce LW |
624 | case 'a': |
625 | case 'b': | |
626 | if (len == 1) | |
a5f75d66 | 627 | GvMULTI_on(gv); |
ed6116ce | 628 | break; |
a0d0e21e LW |
629 | case 'E': |
630 | if (strnEQ(name, "EXPORT", 6)) | |
a5f75d66 | 631 | GvMULTI_on(gv); |
a0d0e21e | 632 | break; |
463ee0b2 LW |
633 | case 'I': |
634 | if (strEQ(name, "ISA")) { | |
635 | AV* av = GvAVn(gv); | |
a5f75d66 | 636 | GvMULTI_on(gv); |
a0d0e21e | 637 | sv_magic((SV*)av, (SV*)gv, 'I', Nullch, 0); |
93965878 | 638 | /* NOTE: No support for tied ISA */ |
55d729e4 GS |
639 | if ((add & GV_ADDMULTI) && strEQ(nambeg,"AnyDBM_File::ISA") |
640 | && AvFILLp(av) == -1) | |
85e6fe83 | 641 | { |
a0d0e21e LW |
642 | char *pname; |
643 | av_push(av, newSVpv(pname = "NDBM_File",0)); | |
dc437b57 | 644 | gv_stashpvn(pname, 9, TRUE); |
a0d0e21e | 645 | av_push(av, newSVpv(pname = "DB_File",0)); |
dc437b57 | 646 | gv_stashpvn(pname, 7, TRUE); |
a0d0e21e | 647 | av_push(av, newSVpv(pname = "GDBM_File",0)); |
dc437b57 | 648 | gv_stashpvn(pname, 9, TRUE); |
a0d0e21e | 649 | av_push(av, newSVpv(pname = "SDBM_File",0)); |
dc437b57 | 650 | gv_stashpvn(pname, 9, TRUE); |
a0d0e21e | 651 | av_push(av, newSVpv(pname = "ODBM_File",0)); |
dc437b57 | 652 | gv_stashpvn(pname, 9, TRUE); |
85e6fe83 | 653 | } |
463ee0b2 LW |
654 | } |
655 | break; | |
a0d0e21e LW |
656 | #ifdef OVERLOAD |
657 | case 'O': | |
658 | if (strEQ(name, "OVERLOAD")) { | |
659 | HV* hv = GvHVn(gv); | |
a5f75d66 | 660 | GvMULTI_on(gv); |
ea0efc06 | 661 | hv_magic(hv, gv, 'A'); |
a0d0e21e LW |
662 | } |
663 | break; | |
664 | #endif /* OVERLOAD */ | |
93a17b20 LW |
665 | case 'S': |
666 | if (strEQ(name, "SIG")) { | |
667 | HV *hv; | |
dc437b57 | 668 | I32 i; |
3280af22 NIS |
669 | PL_siggv = gv; |
670 | GvMULTI_on(PL_siggv); | |
671 | hv = GvHVn(PL_siggv); | |
672 | hv_magic(hv, PL_siggv, 'S'); | |
22c35a8c | 673 | for(i=1;PL_sig_name[i];i++) { |
dc437b57 | 674 | SV ** init; |
22c35a8c | 675 | init=hv_fetch(hv,PL_sig_name[i],strlen(PL_sig_name[i]),1); |
dc437b57 | 676 | if(init) |
3280af22 | 677 | sv_setsv(*init,&PL_sv_undef); |
22c35a8c GS |
678 | PL_psig_ptr[i] = 0; |
679 | PL_psig_name[i] = 0; | |
dc437b57 | 680 | } |
93a17b20 LW |
681 | } |
682 | break; | |
683 | ||
684 | case '&': | |
463ee0b2 LW |
685 | if (len > 1) |
686 | break; | |
3280af22 NIS |
687 | PL_ampergv = gv; |
688 | PL_sawampersand = TRUE; | |
a0d0e21e | 689 | goto ro_magicalize; |
93a17b20 LW |
690 | |
691 | case '`': | |
463ee0b2 LW |
692 | if (len > 1) |
693 | break; | |
3280af22 NIS |
694 | PL_leftgv = gv; |
695 | PL_sawampersand = TRUE; | |
a0d0e21e | 696 | goto ro_magicalize; |
93a17b20 LW |
697 | |
698 | case '\'': | |
463ee0b2 LW |
699 | if (len > 1) |
700 | break; | |
3280af22 NIS |
701 | PL_rightgv = gv; |
702 | PL_sawampersand = TRUE; | |
a0d0e21e | 703 | goto ro_magicalize; |
93a17b20 LW |
704 | |
705 | case ':': | |
463ee0b2 LW |
706 | if (len > 1) |
707 | break; | |
3280af22 | 708 | sv_setpv(GvSV(gv),PL_chopset); |
93a17b20 LW |
709 | goto magicalize; |
710 | ||
ff0cee69 | 711 | case '?': |
712 | if (len > 1) | |
713 | break; | |
714 | #ifdef COMPLEX_STATUS | |
07f14f54 | 715 | (void)SvUPGRADE(GvSV(gv), SVt_PVLV); |
ff0cee69 | 716 | #endif |
717 | goto magicalize; | |
718 | ||
067391ea | 719 | case '!': |
4318d5a0 | 720 | if (len > 1) |
067391ea | 721 | break; |
3280af22 | 722 | if (sv_type > SVt_PV && PL_curcop != &PL_compiling) { |
067391ea GS |
723 | HV* stash = gv_stashpvn("Errno",5,FALSE); |
724 | if(!stash || !(gv_fetchmethod(stash, "TIEHASH"))) { | |
725 | dSP; | |
726 | PUTBACK; | |
727 | perl_require_pv("Errno.pm"); | |
728 | SPAGAIN; | |
729 | stash = gv_stashpvn("Errno",5,FALSE); | |
730 | if (!stash || !(gv_fetchmethod(stash, "TIEHASH"))) | |
1d2dff63 | 731 | croak("Can't use %%! because Errno.pm is not available"); |
067391ea GS |
732 | } |
733 | } | |
734 | goto magicalize; | |
6cef1e77 IZ |
735 | case '-': |
736 | if (len > 1) | |
737 | break; | |
738 | else { | |
739 | AV* av = GvAVn(gv); | |
740 | sv_magic((SV*)av, Nullsv, 'D', Nullch, 0); | |
741 | } | |
742 | goto magicalize; | |
93a17b20 | 743 | case '#': |
a0d0e21e | 744 | case '*': |
599cee73 PM |
745 | if (ckWARN(WARN_DEPRECATED) && len == 1 && sv_type == SVt_PV) |
746 | warner(WARN_DEPRECATED, "Use of $%s is deprecated", name); | |
a0d0e21e LW |
747 | /* FALL THROUGH */ |
748 | case '[': | |
93a17b20 LW |
749 | case '^': |
750 | case '~': | |
751 | case '=': | |
93a17b20 LW |
752 | case '%': |
753 | case '.': | |
93a17b20 LW |
754 | case '(': |
755 | case ')': | |
756 | case '<': | |
757 | case '>': | |
758 | case ',': | |
759 | case '\\': | |
760 | case '/': | |
93a17b20 | 761 | case '|': |
748a9306 | 762 | case '\001': |
599cee73 | 763 | case '\002': |
49460fe6 | 764 | case '\003': |
93a17b20 | 765 | case '\004': |
ad8898e0 | 766 | case '\005': |
748a9306 | 767 | case '\006': |
a0d0e21e | 768 | case '\010': |
9d116dd7 | 769 | case '\011': /* NOT \t in EBCDIC */ |
ad8898e0 | 770 | case '\017': |
93a17b20 LW |
771 | case '\020': |
772 | case '\024': | |
773 | case '\027': | |
463ee0b2 LW |
774 | if (len > 1) |
775 | break; | |
776 | goto magicalize; | |
6cef1e77 IZ |
777 | case '\023': |
778 | if (len > 1) | |
779 | break; | |
780 | goto ro_magicalize; | |
463ee0b2 | 781 | |
a0d0e21e | 782 | case '+': |
6cef1e77 IZ |
783 | if (len > 1) |
784 | break; | |
785 | else { | |
786 | AV* av = GvAVn(gv); | |
787 | sv_magic((SV*)av, (SV*)av, 'D', Nullch, 0); | |
788 | } | |
789 | /* FALL THROUGH */ | |
463ee0b2 LW |
790 | case '1': |
791 | case '2': | |
792 | case '3': | |
793 | case '4': | |
794 | case '5': | |
795 | case '6': | |
796 | case '7': | |
797 | case '8': | |
798 | case '9': | |
a0d0e21e LW |
799 | ro_magicalize: |
800 | SvREADONLY_on(GvSV(gv)); | |
93a17b20 | 801 | magicalize: |
463ee0b2 | 802 | sv_magic(GvSV(gv), (SV*)gv, 0, name, len); |
93a17b20 LW |
803 | break; |
804 | ||
805 | case '\014': | |
463ee0b2 LW |
806 | if (len > 1) |
807 | break; | |
93a17b20 | 808 | sv_setpv(GvSV(gv),"\f"); |
3280af22 | 809 | PL_formfeed = GvSV(gv); |
93a17b20 LW |
810 | break; |
811 | case ';': | |
463ee0b2 LW |
812 | if (len > 1) |
813 | break; | |
93a17b20 LW |
814 | sv_setpv(GvSV(gv),"\034"); |
815 | break; | |
463ee0b2 LW |
816 | case ']': |
817 | if (len == 1) { | |
f86702cc | 818 | SV *sv = GvSV(gv); |
07f14f54 | 819 | (void)SvUPGRADE(sv, SVt_PVNV); |
3280af22 | 820 | sv_setpv(sv, PL_patchlevel); |
f86702cc | 821 | (void)sv_2nv(sv); |
822 | SvREADONLY_on(sv); | |
93a17b20 LW |
823 | } |
824 | break; | |
79072805 | 825 | } |
93a17b20 | 826 | return gv; |
79072805 LW |
827 | } |
828 | ||
829 | void | |
8ac85365 | 830 | gv_fullname3(SV *sv, GV *gv, char *prefix) |
79072805 LW |
831 | { |
832 | HV *hv = GvSTASH(gv); | |
f967eb5f | 833 | if (!hv) { |
834 | SvOK_off(sv); | |
79072805 | 835 | return; |
f967eb5f | 836 | } |
837 | sv_setpv(sv, prefix ? prefix : ""); | |
79072805 | 838 | sv_catpv(sv,HvNAME(hv)); |
463ee0b2 | 839 | sv_catpvn(sv,"::", 2); |
79072805 LW |
840 | sv_catpvn(sv,GvNAME(gv),GvNAMELEN(gv)); |
841 | } | |
842 | ||
843 | void | |
8ac85365 | 844 | gv_efullname3(SV *sv, GV *gv, char *prefix) |
79072805 | 845 | { |
f967eb5f | 846 | GV *egv = GvEGV(gv); |
748a9306 LW |
847 | if (!egv) |
848 | egv = gv; | |
f6aff53a | 849 | gv_fullname3(sv, egv, prefix); |
850 | } | |
851 | ||
852 | /* XXX compatibility with versions <= 5.003. */ | |
853 | void | |
8ac85365 | 854 | gv_fullname(SV *sv, GV *gv) |
f6aff53a | 855 | { |
856 | gv_fullname3(sv, gv, sv == (SV*)gv ? "*" : ""); | |
857 | } | |
858 | ||
859 | /* XXX compatibility with versions <= 5.003. */ | |
860 | void | |
8ac85365 | 861 | gv_efullname(SV *sv, GV *gv) |
f6aff53a | 862 | { |
863 | gv_efullname3(sv, gv, sv == (SV*)gv ? "*" : ""); | |
79072805 LW |
864 | } |
865 | ||
866 | IO * | |
8ac85365 | 867 | newIO(void) |
79072805 | 868 | { |
11343788 | 869 | dTHR; |
79072805 | 870 | IO *io; |
8990e307 LW |
871 | GV *iogv; |
872 | ||
873 | io = (IO*)NEWSV(0,0); | |
a0d0e21e | 874 | sv_upgrade((SV *)io,SVt_PVIO); |
8990e307 LW |
875 | SvREFCNT(io) = 1; |
876 | SvOBJECT_on(io); | |
c9de509e | 877 | iogv = gv_fetchpv("FileHandle::", FALSE, SVt_PVHV); |
5f2d631d GS |
878 | /* unless exists($main::{FileHandle}) and defined(%main::FileHandle::) */ |
879 | if (!(iogv && GvHV(iogv) && HvARRAY(GvHV(iogv)))) | |
c9de509e | 880 | iogv = gv_fetchpv("IO::Handle::", TRUE, SVt_PVHV); |
8990e307 | 881 | SvSTASH(io) = (HV*)SvREFCNT_inc(GvHV(iogv)); |
79072805 LW |
882 | return io; |
883 | } | |
884 | ||
885 | void | |
8ac85365 | 886 | gv_check(HV *stash) |
79072805 | 887 | { |
11343788 | 888 | dTHR; |
79072805 LW |
889 | register HE *entry; |
890 | register I32 i; | |
891 | register GV *gv; | |
463ee0b2 | 892 | HV *hv; |
a0d0e21e | 893 | GV *filegv; |
463ee0b2 | 894 | |
8990e307 LW |
895 | if (!HvARRAY(stash)) |
896 | return; | |
a0d0e21e | 897 | for (i = 0; i <= (I32) HvMAX(stash); i++) { |
dc437b57 | 898 | for (entry = HvARRAY(stash)[i]; entry; entry = HeNEXT(entry)) { |
899 | if (HeKEY(entry)[HeKLEN(entry)-1] == ':' && | |
900 | (gv = (GV*)HeVAL(entry)) && (hv = GvHV(gv)) && HvNAME(hv)) | |
a0d0e21e | 901 | { |
3280af22 | 902 | if (hv != PL_defstash) |
a0d0e21e LW |
903 | gv_check(hv); /* nested package */ |
904 | } | |
dc437b57 | 905 | else if (isALPHA(*HeKEY(entry))) { |
906 | gv = (GV*)HeVAL(entry); | |
55d729e4 | 907 | if (SvTYPE(gv) != SVt_PVGV || GvMULTI(gv)) |
463ee0b2 | 908 | continue; |
3280af22 | 909 | PL_curcop->cop_line = GvLINE(gv); |
a0d0e21e | 910 | filegv = GvFILEGV(gv); |
3280af22 | 911 | PL_curcop->cop_filegv = filegv; |
a5f75d66 | 912 | if (filegv && GvMULTI(filegv)) /* Filename began with slash */ |
8990e307 | 913 | continue; |
599cee73 PM |
914 | warner(WARN_ONCE, |
915 | "Name \"%s::%s\" used only once: possible typo", | |
a0d0e21e | 916 | HvNAME(stash), GvNAME(gv)); |
463ee0b2 | 917 | } |
79072805 LW |
918 | } |
919 | } | |
920 | } | |
921 | ||
922 | GV * | |
8ac85365 | 923 | newGVgen(char *pack) |
79072805 | 924 | { |
3280af22 | 925 | return gv_fetchpv(form("%s::_GEN_%ld", pack, (long)PL_gensym++), |
46fc3d4c | 926 | TRUE, SVt_PVGV); |
79072805 LW |
927 | } |
928 | ||
929 | /* hopefully this is only called on local symbol table entries */ | |
930 | ||
931 | GP* | |
8ac85365 | 932 | gp_ref(GP *gp) |
79072805 LW |
933 | { |
934 | gp->gp_refcnt++; | |
44a8e56a | 935 | if (gp->gp_cv) { |
936 | if (gp->gp_cvgen) { | |
937 | /* multi-named GPs cannot be used for method cache */ | |
938 | SvREFCNT_dec(gp->gp_cv); | |
939 | gp->gp_cv = Nullcv; | |
940 | gp->gp_cvgen = 0; | |
941 | } | |
942 | else { | |
943 | /* Adding a new name to a subroutine invalidates method cache */ | |
3280af22 | 944 | PL_sub_generation++; |
44a8e56a | 945 | } |
946 | } | |
79072805 | 947 | return gp; |
79072805 LW |
948 | } |
949 | ||
950 | void | |
8ac85365 | 951 | gp_free(GV *gv) |
79072805 | 952 | { |
79072805 | 953 | GP* gp; |
377b8fbc | 954 | CV* cv; |
79072805 LW |
955 | |
956 | if (!gv || !(gp = GvGP(gv))) | |
957 | return; | |
958 | if (gp->gp_refcnt == 0) { | |
959 | warn("Attempt to free unreferenced glob pointers"); | |
960 | return; | |
961 | } | |
44a8e56a | 962 | if (gp->gp_cv) { |
963 | /* Deleting the name of a subroutine invalidates method cache */ | |
3280af22 | 964 | PL_sub_generation++; |
44a8e56a | 965 | } |
748a9306 LW |
966 | if (--gp->gp_refcnt > 0) { |
967 | if (gp->gp_egv == gv) | |
968 | gp->gp_egv = 0; | |
79072805 | 969 | return; |
748a9306 | 970 | } |
79072805 | 971 | |
8990e307 LW |
972 | SvREFCNT_dec(gp->gp_sv); |
973 | SvREFCNT_dec(gp->gp_av); | |
974 | SvREFCNT_dec(gp->gp_hv); | |
377b8fbc | 975 | SvREFCNT_dec(gp->gp_io); |
a6006777 | 976 | SvREFCNT_dec(gp->gp_cv); |
748a9306 LW |
977 | SvREFCNT_dec(gp->gp_form); |
978 | ||
79072805 LW |
979 | Safefree(gp); |
980 | GvGP(gv) = 0; | |
981 | } | |
982 | ||
983 | #if defined(CRIPPLED_CC) && (defined(iAPX286) || defined(M_I286) || defined(I80286)) | |
984 | #define MICROPORT | |
985 | #endif | |
986 | ||
987 | #ifdef MICROPORT /* Microport 2.4 hack */ | |
988 | AV *GvAVn(gv) | |
989 | register GV *gv; | |
990 | { | |
991 | if (GvGP(gv)->gp_av) | |
992 | return GvGP(gv)->gp_av; | |
993 | else | |
994 | return GvGP(gv_AVadd(gv))->gp_av; | |
995 | } | |
996 | ||
997 | HV *GvHVn(gv) | |
998 | register GV *gv; | |
999 | { | |
1000 | if (GvGP(gv)->gp_hv) | |
1001 | return GvGP(gv)->gp_hv; | |
1002 | else | |
1003 | return GvGP(gv_HVadd(gv))->gp_hv; | |
1004 | } | |
1005 | #endif /* Microport 2.4 hack */ | |
a0d0e21e LW |
1006 | |
1007 | #ifdef OVERLOAD | |
1008 | /* Updates and caches the CV's */ | |
1009 | ||
1010 | bool | |
8ac85365 | 1011 | Gv_AMupdate(HV *stash) |
a0d0e21e | 1012 | { |
11343788 | 1013 | dTHR; |
a0d0e21e LW |
1014 | GV** gvp; |
1015 | HV* hv; | |
1016 | GV* gv; | |
1017 | CV* cv; | |
1018 | MAGIC* mg=mg_find((SV*)stash,'c'); | |
8ac85365 | 1019 | AMT *amtp = (mg) ? (AMT*)mg->mg_ptr: (AMT *) NULL; |
a6006777 | 1020 | AMT amt; |
a0d0e21e | 1021 | |
3280af22 NIS |
1022 | if (mg && amtp->was_ok_am == PL_amagic_generation |
1023 | && amtp->was_ok_sub == PL_sub_generation) | |
a6006777 | 1024 | return AMT_AMAGIC(amtp); |
1025 | if (amtp && AMT_AMAGIC(amtp)) { /* Have table. */ | |
748a9306 | 1026 | int i; |
a6006777 | 1027 | for (i=1; i<NofAMmeth; i++) { |
748a9306 LW |
1028 | if (amtp->table[i]) { |
1029 | SvREFCNT_dec(amtp->table[i]); | |
1030 | } | |
1031 | } | |
1032 | } | |
a0d0e21e LW |
1033 | sv_unmagic((SV*)stash, 'c'); |
1034 | ||
1035 | DEBUG_o( deb("Recalcing overload magic in package %s\n",HvNAME(stash)) ); | |
1036 | ||
3280af22 NIS |
1037 | amt.was_ok_am = PL_amagic_generation; |
1038 | amt.was_ok_sub = PL_sub_generation; | |
a6006777 | 1039 | amt.fallback = AMGfallNO; |
1040 | amt.flags = 0; | |
1041 | ||
1042 | #ifdef OVERLOAD_VIA_HASH | |
1043 | gvp=(GV**)hv_fetch(stash,"OVERLOAD",8,FALSE); /* A shortcut */ | |
3280af22 | 1044 | if (gvp && ((gv = *gvp) != (GV*)&PL_sv_undef && (hv = GvHV(gv)))) { |
a0d0e21e LW |
1045 | int filled=0; |
1046 | int i; | |
1047 | char *cp; | |
a0d0e21e LW |
1048 | SV* sv; |
1049 | SV** svp; | |
a0d0e21e | 1050 | |
22c35a8c | 1051 | /* Work with "fallback" key, which we assume to be first in PL_AMG_names */ |
a0d0e21e | 1052 | |
22c35a8c | 1053 | if (( cp = (char *)PL_AMG_names[0] ) && |
a6006777 | 1054 | (svp = (SV**)hv_fetch(hv,cp,strlen(cp),FALSE)) && (sv = *svp)) { |
a0d0e21e LW |
1055 | if (SvTRUE(sv)) amt.fallback=AMGfallYES; |
1056 | else if (SvOK(sv)) amt.fallback=AMGfallNEVER; | |
1057 | } | |
a6006777 | 1058 | for (i = 1; i < NofAMmeth; i++) { |
1059 | cv = 0; | |
22c35a8c | 1060 | cp = (char *)PL_AMG_names[i]; |
a6006777 | 1061 | |
1062 | svp = (SV**)hv_fetch(hv, cp, strlen(cp), FALSE); | |
3280af22 | 1063 | if (svp && ((sv = *svp) != &PL_sv_undef)) { |
a0d0e21e LW |
1064 | switch (SvTYPE(sv)) { |
1065 | default: | |
1066 | if (!SvROK(sv)) { | |
1067 | if (!SvOK(sv)) break; | |
6b88bc9c | 1068 | gv = gv_fetchmethod(stash, SvPV(sv, PL_na)); |
a0d0e21e LW |
1069 | if (gv) cv = GvCV(gv); |
1070 | break; | |
1071 | } | |
1072 | cv = (CV*)SvRV(sv); | |
1073 | if (SvTYPE(cv) == SVt_PVCV) | |
1074 | break; | |
1075 | /* FALL THROUGH */ | |
1076 | case SVt_PVHV: | |
1077 | case SVt_PVAV: | |
a6006777 | 1078 | croak("Not a subroutine reference in overload table"); |
a0d0e21e LW |
1079 | return FALSE; |
1080 | case SVt_PVCV: | |
8ebc5c01 | 1081 | cv = (CV*)sv; |
1082 | break; | |
a0d0e21e | 1083 | case SVt_PVGV: |
8ebc5c01 | 1084 | if (!(cv = GvCVu((GV*)sv))) |
1085 | cv = sv_2cv(sv, &stash, &gv, TRUE); | |
1086 | break; | |
a0d0e21e LW |
1087 | } |
1088 | if (cv) filled=1; | |
1089 | else { | |
a6006777 | 1090 | croak("Method for operation %s not found in package %.256s during blessing\n", |
a0d0e21e LW |
1091 | cp,HvNAME(stash)); |
1092 | return FALSE; | |
1093 | } | |
1094 | } | |
a6006777 | 1095 | #else |
1096 | { | |
1097 | int filled = 0; | |
1098 | int i; | |
9607fc9c | 1099 | const char *cp; |
a6006777 | 1100 | SV* sv = NULL; |
1101 | SV** svp; | |
1102 | ||
22c35a8c | 1103 | /* Work with "fallback" key, which we assume to be first in PL_AMG_names */ |
a6006777 | 1104 | |
22c35a8c | 1105 | if ( cp = PL_AMG_names[0] ) { |
a6006777 | 1106 | /* Try to find via inheritance. */ |
774d564b | 1107 | gv = gv_fetchmeth(stash, "()", 2, -1); /* A cookie: "()". */ |
a6006777 | 1108 | if (gv) sv = GvSV(gv); |
1109 | ||
774d564b | 1110 | if (!gv) goto no_table; |
a6006777 | 1111 | else if (SvTRUE(sv)) amt.fallback=AMGfallYES; |
1112 | else if (SvOK(sv)) amt.fallback=AMGfallNEVER; | |
1113 | } | |
1114 | ||
1115 | for (i = 1; i < NofAMmeth; i++) { | |
22c35a8c | 1116 | SV *cookie = sv_2mortal(newSVpvf("(%s", cp = PL_AMG_names[i])); |
44a8e56a | 1117 | DEBUG_o( deb("Checking overloading of `%s' in package `%.256s'\n", |
1118 | cp, HvNAME(stash)) ); | |
46fc3d4c | 1119 | /* don't fill the cache while looking up! */ |
1120 | gv = gv_fetchmeth(stash, SvPVX(cookie), SvCUR(cookie), -1); | |
1121 | cv = 0; | |
44a8e56a | 1122 | if(gv && (cv = GvCV(gv))) { |
44a8e56a | 1123 | if (GvNAMELEN(CvGV(cv)) == 3 && strEQ(GvNAME(CvGV(cv)), "nil") |
1124 | && strEQ(HvNAME(GvSTASH(CvGV(cv))), "overload")) { | |
1125 | /* GvSV contains the name of the method. */ | |
1126 | GV *ngv; | |
1127 | ||
1128 | DEBUG_o( deb("Resolving method `%.256s' for overloaded `%s' in package `%.256s'\n", | |
3280af22 | 1129 | SvPV(GvSV(gv), PL_na), cp, HvNAME(stash)) ); |
dc848c6f | 1130 | if (!SvPOK(GvSV(gv)) |
1131 | || !(ngv = gv_fetchmethod_autoload(stash, SvPVX(GvSV(gv)), | |
1132 | FALSE))) | |
1133 | { | |
44a8e56a | 1134 | /* Can be an import stub (created by `can'). */ |
1135 | if (GvCVGEN(gv)) { | |
1136 | croak("Stub found while resolving method `%.256s' overloading `%s' in package `%.256s'", | |
1137 | (SvPOK(GvSV(gv)) ? SvPVX(GvSV(gv)) : "???" ), | |
1138 | cp, HvNAME(stash)); | |
1139 | } else | |
1140 | croak("Cannot resolve method `%.256s' overloading `%s' in package `%.256s'", | |
1141 | (SvPOK(GvSV(gv)) ? SvPVX(GvSV(gv)) : "???" ), | |
1142 | cp, HvNAME(stash)); | |
1143 | } | |
dc848c6f | 1144 | cv = GvCV(gv = ngv); |
44a8e56a | 1145 | } |
1146 | DEBUG_o( deb("Overloading `%s' in package `%.256s' via `%.256s::%.256s' \n", | |
1147 | cp, HvNAME(stash), HvNAME(GvSTASH(CvGV(cv))), | |
1148 | GvNAME(CvGV(cv))) ); | |
1149 | filled = 1; | |
1150 | } | |
a6006777 | 1151 | #endif |
1152 | amt.table[i]=(CV*)SvREFCNT_inc(cv); | |
a0d0e21e | 1153 | } |
a0d0e21e | 1154 | if (filled) { |
a6006777 | 1155 | AMT_AMAGIC_on(&amt); |
1156 | sv_magic((SV*)stash, 0, 'c', (char*)&amt, sizeof(AMT)); | |
a0d0e21e LW |
1157 | return TRUE; |
1158 | } | |
1159 | } | |
a6006777 | 1160 | /* Here we have no table: */ |
774d564b | 1161 | no_table: |
a6006777 | 1162 | AMT_AMAGIC_off(&amt); |
1163 | sv_magic((SV*)stash, 0, 'c', (char*)&amt, sizeof(AMTS)); | |
a0d0e21e LW |
1164 | return FALSE; |
1165 | } | |
1166 | ||
a0d0e21e | 1167 | SV* |
8ac85365 | 1168 | amagic_call(SV *left, SV *right, int method, int flags) |
a0d0e21e | 1169 | { |
11343788 | 1170 | dTHR; |
a0d0e21e LW |
1171 | MAGIC *mg; |
1172 | CV *cv; | |
1173 | CV **cvp=NULL, **ocvp=NULL; | |
1174 | AMT *amtp, *oamtp; | |
1175 | int fl=0, off, off1, lr=0, assign=AMGf_assign & flags, notfound=0; | |
ee239bfe | 1176 | int postpr = 0, force_cpy = 0, assignshift = assign ? 1 : 0; |
a0d0e21e LW |
1177 | HV* stash; |
1178 | if (!(AMGf_noleft & flags) && SvAMAGIC(left) | |
1179 | && (mg = mg_find((SV*)(stash=SvSTASH(SvRV(left))),'c')) | |
a6006777 | 1180 | && (ocvp = cvp = (AMT_AMAGIC((AMT*)mg->mg_ptr) |
1181 | ? (oamtp = amtp = (AMT*)mg->mg_ptr)->table | |
8ac85365 | 1182 | : (CV **) NULL)) |
748a9306 LW |
1183 | && ((cv = cvp[off=method+assignshift]) |
1184 | || (assign && amtp->fallback > AMGfallNEVER && /* fallback to | |
1185 | * usual method */ | |
1186 | (fl = 1, cv = cvp[off=method])))) { | |
a0d0e21e LW |
1187 | lr = -1; /* Call method for left argument */ |
1188 | } else { | |
1189 | if (cvp && amtp->fallback > AMGfallNEVER && flags & AMGf_unary) { | |
1190 | int logic; | |
1191 | ||
1192 | /* look for substituted methods */ | |
ee239bfe | 1193 | /* In all the covered cases we should be called with assign==0. */ |
a0d0e21e LW |
1194 | switch (method) { |
1195 | case inc_amg: | |
ee239bfe IZ |
1196 | force_cpy = 1; |
1197 | if ((cv = cvp[off=add_ass_amg]) | |
1198 | || ((cv = cvp[off = add_amg]) && (force_cpy = 0, postpr = 1))) { | |
3280af22 | 1199 | right = &PL_sv_yes; lr = -1; assign = 1; |
a0d0e21e LW |
1200 | } |
1201 | break; | |
1202 | case dec_amg: | |
ee239bfe IZ |
1203 | force_cpy = 1; |
1204 | if ((cv = cvp[off = subtr_ass_amg]) | |
1205 | || ((cv = cvp[off = subtr_amg]) && (force_cpy = 0, postpr=1))) { | |
3280af22 | 1206 | right = &PL_sv_yes; lr = -1; assign = 1; |
a0d0e21e LW |
1207 | } |
1208 | break; | |
1209 | case bool__amg: | |
1210 | (void)((cv = cvp[off=numer_amg]) || (cv = cvp[off=string_amg])); | |
1211 | break; | |
1212 | case numer_amg: | |
1213 | (void)((cv = cvp[off=string_amg]) || (cv = cvp[off=bool__amg])); | |
1214 | break; | |
1215 | case string_amg: | |
1216 | (void)((cv = cvp[off=numer_amg]) || (cv = cvp[off=bool__amg])); | |
1217 | break; | |
dc437b57 | 1218 | case not_amg: |
1219 | (void)((cv = cvp[off=bool__amg]) | |
1220 | || (cv = cvp[off=numer_amg]) | |
1221 | || (cv = cvp[off=string_amg])); | |
1222 | postpr = 1; | |
1223 | break; | |
748a9306 LW |
1224 | case copy_amg: |
1225 | { | |
76e3520e GS |
1226 | /* |
1227 | * SV* ref causes confusion with the interpreter variable of | |
1228 | * the same name | |
1229 | */ | |
1230 | SV* tmpRef=SvRV(left); | |
1231 | if (!SvROK(tmpRef) && SvTYPE(tmpRef) <= SVt_PVMG) { | |
fc36a67e | 1232 | /* |
1233 | * Just to be extra cautious. Maybe in some | |
1234 | * additional cases sv_setsv is safe, too. | |
1235 | */ | |
76e3520e | 1236 | SV* newref = newSVsv(tmpRef); |
748a9306 | 1237 | SvOBJECT_on(newref); |
76e3520e | 1238 | SvSTASH(newref) = (HV*)SvREFCNT_inc(SvSTASH(tmpRef)); |
748a9306 LW |
1239 | return newref; |
1240 | } | |
1241 | } | |
1242 | break; | |
a0d0e21e | 1243 | case abs_amg: |
748a9306 | 1244 | if ((cvp[off1=lt_amg] || cvp[off1=ncmp_amg]) |
a0d0e21e | 1245 | && ((cv = cvp[off=neg_amg]) || (cv = cvp[off=subtr_amg]))) { |
748a9306 | 1246 | SV* nullsv=sv_2mortal(newSViv(0)); |
a0d0e21e | 1247 | if (off1==lt_amg) { |
748a9306 | 1248 | SV* lessp = amagic_call(left,nullsv, |
a0d0e21e LW |
1249 | lt_amg,AMGf_noright); |
1250 | logic = SvTRUE(lessp); | |
1251 | } else { | |
748a9306 | 1252 | SV* lessp = amagic_call(left,nullsv, |
a0d0e21e LW |
1253 | ncmp_amg,AMGf_noright); |
1254 | logic = (SvNV(lessp) < 0); | |
1255 | } | |
1256 | if (logic) { | |
1257 | if (off==subtr_amg) { | |
1258 | right = left; | |
748a9306 | 1259 | left = nullsv; |
a0d0e21e LW |
1260 | lr = 1; |
1261 | } | |
1262 | } else { | |
1263 | return left; | |
1264 | } | |
1265 | } | |
1266 | break; | |
1267 | case neg_amg: | |
1268 | if (cv = cvp[off=subtr_amg]) { | |
1269 | right = left; | |
1270 | left = sv_2mortal(newSViv(0)); | |
1271 | lr = 1; | |
1272 | } | |
1273 | break; | |
f5284f61 IZ |
1274 | case iter_amg: /* XXXX Eventually should do to_gv. */ |
1275 | case to_sv_amg: | |
1276 | case to_av_amg: | |
1277 | case to_hv_amg: | |
1278 | case to_gv_amg: | |
1279 | case to_cv_amg: | |
1280 | /* FAIL safe */ | |
1281 | return NULL; /* Delegate operation to standard mechanisms. */ | |
1282 | break; | |
a0d0e21e LW |
1283 | default: |
1284 | goto not_found; | |
1285 | } | |
1286 | if (!cv) goto not_found; | |
1287 | } else if (!(AMGf_noright & flags) && SvAMAGIC(right) | |
1288 | && (mg = mg_find((SV*)(stash=SvSTASH(SvRV(right))),'c')) | |
a6006777 | 1289 | && (cvp = (AMT_AMAGIC((AMT*)mg->mg_ptr) |
1290 | ? (amtp = (AMT*)mg->mg_ptr)->table | |
8ac85365 | 1291 | : (CV **) NULL)) |
a0d0e21e LW |
1292 | && (cv = cvp[off=method])) { /* Method for right |
1293 | * argument found */ | |
1294 | lr=1; | |
748a9306 | 1295 | } else if (((ocvp && oamtp->fallback > AMGfallNEVER |
4633a7c4 | 1296 | && (cvp=ocvp) && (lr = -1)) |
a0d0e21e LW |
1297 | || (cvp && amtp->fallback > AMGfallNEVER && (lr=1))) |
1298 | && !(flags & AMGf_unary)) { | |
1299 | /* We look for substitution for | |
1300 | * comparison operations and | |
fc36a67e | 1301 | * concatenation */ |
a0d0e21e LW |
1302 | if (method==concat_amg || method==concat_ass_amg |
1303 | || method==repeat_amg || method==repeat_ass_amg) { | |
1304 | return NULL; /* Delegate operation to string conversion */ | |
1305 | } | |
1306 | off = -1; | |
1307 | switch (method) { | |
1308 | case lt_amg: | |
1309 | case le_amg: | |
1310 | case gt_amg: | |
1311 | case ge_amg: | |
1312 | case eq_amg: | |
1313 | case ne_amg: | |
1314 | postpr = 1; off=ncmp_amg; break; | |
1315 | case slt_amg: | |
1316 | case sle_amg: | |
1317 | case sgt_amg: | |
1318 | case sge_amg: | |
1319 | case seq_amg: | |
1320 | case sne_amg: | |
1321 | postpr = 1; off=scmp_amg; break; | |
1322 | } | |
1323 | if (off != -1) cv = cvp[off]; | |
1324 | if (!cv) { | |
1325 | goto not_found; | |
1326 | } | |
1327 | } else { | |
a6006777 | 1328 | not_found: /* No method found, either report or croak */ |
a0d0e21e LW |
1329 | if (ocvp && (cv=ocvp[nomethod_amg])) { /* Call report method */ |
1330 | notfound = 1; lr = -1; | |
1331 | } else if (cvp && (cv=cvp[nomethod_amg])) { | |
1332 | notfound = 1; lr = 1; | |
1333 | } else { | |
46fc3d4c | 1334 | SV *msg; |
774d564b | 1335 | if (off==-1) off=method; |
46fc3d4c | 1336 | msg = sv_2mortal(newSVpvf( |
1337 | "Operation `%s': no method found,%sargument %s%s%s%s", | |
22c35a8c | 1338 | PL_AMG_names[method + assignshift], |
e7ea3e70 | 1339 | (flags & AMGf_unary ? " " : "\n\tleft "), |
a0d0e21e LW |
1340 | SvAMAGIC(left)? |
1341 | "in overloaded package ": | |
1342 | "has no overloaded magic", | |
1343 | SvAMAGIC(left)? | |
1344 | HvNAME(SvSTASH(SvRV(left))): | |
1345 | "", | |
1346 | SvAMAGIC(right)? | |
e7ea3e70 IZ |
1347 | ",\n\tright argument in overloaded package ": |
1348 | (flags & AMGf_unary | |
1349 | ? "" | |
1350 | : ",\n\tright argument has no overloaded magic"), | |
a0d0e21e LW |
1351 | SvAMAGIC(right)? |
1352 | HvNAME(SvSTASH(SvRV(right))): | |
46fc3d4c | 1353 | "")); |
a0d0e21e | 1354 | if (amtp && amtp->fallback >= AMGfallYES) { |
46fc3d4c | 1355 | DEBUG_o( deb("%s", SvPVX(msg)) ); |
a0d0e21e | 1356 | } else { |
fc36a67e | 1357 | croak("%_", msg); |
a0d0e21e LW |
1358 | } |
1359 | return NULL; | |
1360 | } | |
ee239bfe | 1361 | force_cpy = force_cpy || assign; |
a0d0e21e LW |
1362 | } |
1363 | } | |
1364 | if (!notfound) { | |
774d564b | 1365 | DEBUG_o( deb( |
46fc3d4c | 1366 | "Overloaded operator `%s'%s%s%s:\n\tmethod%s found%s in package %s%s\n", |
22c35a8c | 1367 | PL_AMG_names[off], |
748a9306 LW |
1368 | method+assignshift==off? "" : |
1369 | " (initially `", | |
1370 | method+assignshift==off? "" : | |
22c35a8c | 1371 | PL_AMG_names[method+assignshift], |
748a9306 LW |
1372 | method+assignshift==off? "" : "')", |
1373 | flags & AMGf_unary? "" : | |
1374 | lr==1 ? " for right argument": " for left argument", | |
1375 | flags & AMGf_unary? " for argument" : "", | |
a0d0e21e LW |
1376 | HvNAME(stash), |
1377 | fl? ",\n\tassignment variant used": "") ); | |
ee239bfe | 1378 | } |
748a9306 LW |
1379 | /* Since we use shallow copy during assignment, we need |
1380 | * to dublicate the contents, probably calling user-supplied | |
1381 | * version of copy operator | |
1382 | */ | |
ee239bfe IZ |
1383 | /* We need to copy in following cases: |
1384 | * a) Assignment form was called. | |
1385 | * assignshift==1, assign==T, method + 1 == off | |
1386 | * b) Increment or decrement, called directly. | |
1387 | * assignshift==0, assign==0, method + 0 == off | |
1388 | * c) Increment or decrement, translated to assignment add/subtr. | |
1389 | * assignshift==0, assign==T, | |
1390 | * force_cpy == T | |
1391 | * d) Increment or decrement, translated to nomethod. | |
1392 | * assignshift==0, assign==0, | |
1393 | * force_cpy == T | |
1394 | * e) Assignment form translated to nomethod. | |
1395 | * assignshift==1, assign==T, method + 1 != off | |
1396 | * force_cpy == T | |
1397 | */ | |
1398 | /* off is method, method+assignshift, or a result of opcode substitution. | |
1399 | * In the latter case assignshift==0, so only notfound case is important. | |
1400 | */ | |
1401 | if (( (method + assignshift == off) | |
1402 | && (assign || (method == inc_amg) || (method == dec_amg))) | |
1403 | || force_cpy) | |
1404 | RvDEEPCP(left); | |
a0d0e21e LW |
1405 | { |
1406 | dSP; | |
1407 | BINOP myop; | |
1408 | SV* res; | |
54310121 | 1409 | bool oldcatch = CATCH_GET; |
a0d0e21e | 1410 | |
54310121 | 1411 | CATCH_SET(TRUE); |
a0d0e21e LW |
1412 | Zero(&myop, 1, BINOP); |
1413 | myop.op_last = (OP *) &myop; | |
1414 | myop.op_next = Nullop; | |
54310121 | 1415 | myop.op_flags = OPf_WANT_SCALAR | OPf_STACKED; |
a0d0e21e | 1416 | |
e788e7d3 | 1417 | PUSHSTACKi(PERLSI_OVERLOAD); |
a0d0e21e | 1418 | ENTER; |
462e5cf6 | 1419 | SAVEOP(); |
533c011a | 1420 | PL_op = (OP *) &myop; |
3280af22 | 1421 | if (PERLDB_SUB && PL_curstash != PL_debstash) |
533c011a | 1422 | PL_op->op_private |= OPpENTERSUB_DB; |
a0d0e21e | 1423 | PUTBACK; |
11343788 | 1424 | pp_pushmark(ARGS); |
a0d0e21e | 1425 | |
924508f0 | 1426 | EXTEND(SP, notfound + 5); |
a0d0e21e LW |
1427 | PUSHs(lr>0? right: left); |
1428 | PUSHs(lr>0? left: right); | |
3280af22 | 1429 | PUSHs( lr > 0 ? &PL_sv_yes : ( assign ? &PL_sv_undef : &PL_sv_no )); |
a0d0e21e | 1430 | if (notfound) { |
22c35a8c | 1431 | PUSHs( sv_2mortal(newSVpv((char *)PL_AMG_names[method + assignshift],0))); |
a0d0e21e LW |
1432 | } |
1433 | PUSHs((SV*)cv); | |
1434 | PUTBACK; | |
1435 | ||
533c011a | 1436 | if (PL_op = pp_entersub(ARGS)) |
76e3520e | 1437 | CALLRUNOPS(); |
a0d0e21e LW |
1438 | LEAVE; |
1439 | SPAGAIN; | |
1440 | ||
1441 | res=POPs; | |
ebafeae7 | 1442 | PUTBACK; |
d3acc0f7 | 1443 | POPSTACK; |
54310121 | 1444 | CATCH_SET(oldcatch); |
a0d0e21e | 1445 | |
a0d0e21e LW |
1446 | if (postpr) { |
1447 | int ans; | |
1448 | switch (method) { | |
1449 | case le_amg: | |
1450 | case sle_amg: | |
1451 | ans=SvIV(res)<=0; break; | |
1452 | case lt_amg: | |
1453 | case slt_amg: | |
1454 | ans=SvIV(res)<0; break; | |
1455 | case ge_amg: | |
1456 | case sge_amg: | |
1457 | ans=SvIV(res)>=0; break; | |
1458 | case gt_amg: | |
1459 | case sgt_amg: | |
1460 | ans=SvIV(res)>0; break; | |
1461 | case eq_amg: | |
1462 | case seq_amg: | |
1463 | ans=SvIV(res)==0; break; | |
1464 | case ne_amg: | |
1465 | case sne_amg: | |
1466 | ans=SvIV(res)!=0; break; | |
1467 | case inc_amg: | |
1468 | case dec_amg: | |
bbce6d69 | 1469 | SvSetSV(left,res); return left; |
dc437b57 | 1470 | case not_amg: |
44a8e56a | 1471 | ans=!SvOK(res); break; |
a0d0e21e | 1472 | } |
54310121 | 1473 | return boolSV(ans); |
748a9306 LW |
1474 | } else if (method==copy_amg) { |
1475 | if (!SvROK(res)) { | |
a6006777 | 1476 | croak("Copy method did not return a reference"); |
748a9306 LW |
1477 | } |
1478 | return SvREFCNT_inc(SvRV(res)); | |
a0d0e21e LW |
1479 | } else { |
1480 | return res; | |
1481 | } | |
1482 | } | |
1483 | } | |
1484 | #endif /* OVERLOAD */ | |
4e35701f | 1485 |