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