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 * | |
08105a92 | 53 | gv_fetchfile(const 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 |
08105a92 | 83 | gv_init(GV *gv, HV *stash, const 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 | 109 | GvNAMELEN(gv) = len; |
23ad5bf5 | 110 | if (multi || doproto) /* doproto means it _was_ mentioned */ |
a5f75d66 | 111 | GvMULTI_on(gv); |
55d729e4 | 112 | if (doproto) { /* Replicate part of newSUB here. */ |
57ff9a15 | 113 | SvIOK_off(gv); |
55d729e4 | 114 | ENTER; |
b099ddc0 | 115 | /* XXX unsafe for threads if eval_owner isn't held */ |
55d729e4 | 116 | start_subparse(0,0); /* Create CV in compcv. */ |
3280af22 | 117 | GvCV(gv) = PL_compcv; |
55d729e4 GS |
118 | LEAVE; |
119 | ||
3280af22 | 120 | PL_sub_generation++; |
55d729e4 | 121 | CvGV(GvCV(gv)) = (GV*)SvREFCNT_inc(gv); |
3280af22 NIS |
122 | CvFILEGV(GvCV(gv)) = PL_curcop->cop_filegv; |
123 | CvSTASH(GvCV(gv)) = PL_curstash; | |
55d729e4 GS |
124 | #ifdef USE_THREADS |
125 | CvOWNER(GvCV(gv)) = 0; | |
1cfa4ec7 | 126 | if (!CvMUTEXP(GvCV(gv))) { |
b0a484d2 | 127 | New(666, CvMUTEXP(GvCV(gv)), 1, perl_mutex); |
1cfa4ec7 GS |
128 | MUTEX_INIT(CvMUTEXP(GvCV(gv))); |
129 | } | |
55d729e4 GS |
130 | #endif /* USE_THREADS */ |
131 | if (proto) { | |
132 | sv_setpv((SV*)GvCV(gv), proto); | |
133 | Safefree(proto); | |
134 | } | |
135 | } | |
463ee0b2 LW |
136 | } |
137 | ||
76e3520e | 138 | STATIC void |
8ac85365 | 139 | gv_init_sv(GV *gv, I32 sv_type) |
a0d0e21e LW |
140 | { |
141 | switch (sv_type) { | |
142 | case SVt_PVIO: | |
143 | (void)GvIOn(gv); | |
144 | break; | |
145 | case SVt_PVAV: | |
146 | (void)GvAVn(gv); | |
147 | break; | |
148 | case SVt_PVHV: | |
149 | (void)GvHVn(gv); | |
150 | break; | |
151 | } | |
152 | } | |
153 | ||
79072805 | 154 | GV * |
08105a92 | 155 | gv_fetchmeth(HV *stash, const char *name, STRLEN len, I32 level) |
79072805 LW |
156 | { |
157 | AV* av; | |
463ee0b2 | 158 | GV* topgv; |
79072805 | 159 | GV* gv; |
463ee0b2 | 160 | GV** gvp; |
748a9306 | 161 | CV* cv; |
a0d0e21e LW |
162 | |
163 | if (!stash) | |
164 | return 0; | |
44a8e56a | 165 | if ((level > 100) || (level < -100)) |
3e0ccd42 JP |
166 | croak("Recursive inheritance detected while looking for method '%s' in package '%s'", |
167 | name, HvNAME(stash)); | |
463ee0b2 | 168 | |
463ee0b2 | 169 | DEBUG_o( deb("Looking for method %s in package %s\n",name,HvNAME(stash)) ); |
44a8e56a | 170 | |
171 | gvp = (GV**)hv_fetch(stash, name, len, (level >= 0)); | |
172 | if (!gvp) | |
173 | topgv = Nullgv; | |
174 | else { | |
175 | topgv = *gvp; | |
176 | if (SvTYPE(topgv) != SVt_PVGV) | |
177 | gv_init(topgv, stash, name, len, TRUE); | |
178 | if (cv = GvCV(topgv)) { | |
179 | /* If genuine method or valid cache entry, use it */ | |
3280af22 | 180 | if (!GvCVGEN(topgv) || GvCVGEN(topgv) == PL_sub_generation) |
7a4c00b4 | 181 | return topgv; |
44a8e56a | 182 | /* Stale cached entry: junk it */ |
183 | SvREFCNT_dec(cv); | |
184 | GvCV(topgv) = cv = Nullcv; | |
185 | GvCVGEN(topgv) = 0; | |
748a9306 | 186 | } |
3280af22 | 187 | else if (GvCVGEN(topgv) == PL_sub_generation) |
005a453c | 188 | return 0; /* cache indicates sub doesn't exist */ |
463ee0b2 | 189 | } |
79072805 | 190 | |
9607fc9c | 191 | gvp = (GV**)hv_fetch(stash, "ISA", 3, FALSE); |
3280af22 | 192 | av = (gvp && (gv = *gvp) && gv != (GV*)&PL_sv_undef) ? GvAV(gv) : Nullav; |
9607fc9c | 193 | |
fb73857a | 194 | /* create and re-create @.*::SUPER::ISA on demand */ |
195 | if (!av || !SvMAGIC(av)) { | |
9607fc9c | 196 | char* packname = HvNAME(stash); |
197 | STRLEN packlen = strlen(packname); | |
198 | ||
199 | if (packlen >= 7 && strEQ(packname + packlen - 7, "::SUPER")) { | |
200 | HV* basestash; | |
201 | ||
202 | packlen -= 7; | |
203 | basestash = gv_stashpvn(packname, packlen, TRUE); | |
204 | gvp = (GV**)hv_fetch(basestash, "ISA", 3, FALSE); | |
3280af22 | 205 | if (gvp && (gv = *gvp) != (GV*)&PL_sv_undef && (av = GvAV(gv))) { |
e858de61 | 206 | dTHR; /* just for SvREFCNT_dec */ |
9607fc9c | 207 | gvp = (GV**)hv_fetch(stash, "ISA", 3, TRUE); |
208 | if (!gvp || !(gv = *gvp)) | |
209 | croak("Cannot create %s::ISA", HvNAME(stash)); | |
210 | if (SvTYPE(gv) != SVt_PVGV) | |
211 | gv_init(gv, stash, "ISA", 3, TRUE); | |
212 | SvREFCNT_dec(GvAV(gv)); | |
213 | GvAV(gv) = (AV*)SvREFCNT_inc(av); | |
214 | } | |
215 | } | |
216 | } | |
217 | ||
218 | if (av) { | |
79072805 | 219 | SV** svp = AvARRAY(av); |
93965878 NIS |
220 | /* NOTE: No support for tied ISA */ |
221 | I32 items = AvFILLp(av) + 1; | |
79072805 | 222 | while (items--) { |
79072805 | 223 | SV* sv = *svp++; |
a0d0e21e | 224 | HV* basestash = gv_stashsv(sv, FALSE); |
9bbf4081 | 225 | if (!basestash) { |
d008e5eb | 226 | dTHR; /* just for ckWARN */ |
599cee73 PM |
227 | if (ckWARN(WARN_MISC)) |
228 | warner(WARN_MISC, "Can't locate package %s for @%s::ISA", | |
463ee0b2 | 229 | SvPVX(sv), HvNAME(stash)); |
79072805 LW |
230 | continue; |
231 | } | |
44a8e56a | 232 | gv = gv_fetchmeth(basestash, name, len, |
233 | (level >= 0) ? level + 1 : level - 1); | |
234 | if (gv) | |
235 | goto gotcha; | |
79072805 LW |
236 | } |
237 | } | |
a0d0e21e | 238 | |
9607fc9c | 239 | /* if at top level, try UNIVERSAL */ |
240 | ||
44a8e56a | 241 | if (level == 0 || level == -1) { |
9607fc9c | 242 | HV* lastchance; |
243 | ||
dc437b57 | 244 | if (lastchance = gv_stashpvn("UNIVERSAL", 9, FALSE)) { |
44a8e56a | 245 | if (gv = gv_fetchmeth(lastchance, name, len, |
246 | (level >= 0) ? level + 1 : level - 1)) { | |
247 | gotcha: | |
dc848c6f | 248 | /* |
249 | * Cache method in topgv if: | |
250 | * 1. topgv has no synonyms (else inheritance crosses wires) | |
251 | * 2. method isn't a stub (else AUTOLOAD fails spectacularly) | |
252 | */ | |
253 | if (topgv && | |
254 | GvREFCNT(topgv) == 1 && | |
255 | (cv = GvCV(gv)) && | |
256 | (CvROOT(cv) || CvXSUB(cv))) | |
257 | { | |
44a8e56a | 258 | if (cv = GvCV(topgv)) |
259 | SvREFCNT_dec(cv); | |
260 | GvCV(topgv) = (CV*)SvREFCNT_inc(GvCV(gv)); | |
3280af22 | 261 | GvCVGEN(topgv) = PL_sub_generation; |
44a8e56a | 262 | } |
a0d0e21e LW |
263 | return gv; |
264 | } | |
005a453c JP |
265 | else if (topgv && GvREFCNT(topgv) == 1) { |
266 | /* cache the fact that the method is not defined */ | |
3280af22 | 267 | GvCVGEN(topgv) = PL_sub_generation; |
005a453c | 268 | } |
a0d0e21e LW |
269 | } |
270 | } | |
271 | ||
79072805 LW |
272 | return 0; |
273 | } | |
274 | ||
275 | GV * | |
08105a92 | 276 | gv_fetchmethod(HV *stash, const char *name) |
463ee0b2 | 277 | { |
dc848c6f | 278 | return gv_fetchmethod_autoload(stash, name, TRUE); |
279 | } | |
280 | ||
281 | GV * | |
08105a92 | 282 | gv_fetchmethod_autoload(HV *stash, const char *name, I32 autoload) |
dc848c6f | 283 | { |
0f15f207 | 284 | dTHR; |
08105a92 GS |
285 | register const char *nend; |
286 | const char *nsplit = 0; | |
a0d0e21e | 287 | GV* gv; |
463ee0b2 LW |
288 | |
289 | for (nend = name; *nend; nend++) { | |
9607fc9c | 290 | if (*nend == '\'') |
a0d0e21e | 291 | nsplit = nend; |
9607fc9c | 292 | else if (*nend == ':' && *(nend + 1) == ':') |
293 | nsplit = ++nend; | |
a0d0e21e LW |
294 | } |
295 | if (nsplit) { | |
08105a92 | 296 | const char *origname = name; |
a0d0e21e | 297 | name = nsplit + 1; |
a0d0e21e LW |
298 | if (*nsplit == ':') |
299 | --nsplit; | |
9607fc9c | 300 | if ((nsplit - origname) == 5 && strnEQ(origname, "SUPER", 5)) { |
301 | /* ->SUPER::method should really be looked up in original stash */ | |
fc36a67e | 302 | SV *tmpstr = sv_2mortal(newSVpvf("%s::SUPER", |
3280af22 | 303 | HvNAME(PL_curcop->cop_stash))); |
9607fc9c | 304 | stash = gv_stashpvn(SvPVX(tmpstr), SvCUR(tmpstr), TRUE); |
305 | DEBUG_o( deb("Treating %s as %s::%s\n", | |
306 | origname, HvNAME(stash), name) ); | |
4633a7c4 | 307 | } |
9607fc9c | 308 | else |
309 | stash = gv_stashpvn(origname, nsplit - origname, TRUE); | |
4633a7c4 LW |
310 | } |
311 | ||
9607fc9c | 312 | gv = gv_fetchmeth(stash, name, nend - name, 0); |
a0d0e21e | 313 | if (!gv) { |
702887b4 | 314 | if (strEQ(name,"import")) |
3280af22 | 315 | gv = (GV*)&PL_sv_yes; |
dc848c6f | 316 | else if (autoload) |
54310121 | 317 | gv = gv_autoload4(stash, name, nend - name, TRUE); |
463ee0b2 | 318 | } |
dc848c6f | 319 | else if (autoload) { |
320 | CV* cv = GvCV(gv); | |
09280a33 CS |
321 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
322 | GV* stubgv; | |
323 | GV* autogv; | |
324 | ||
325 | if (CvANON(cv)) | |
326 | stubgv = gv; | |
327 | else { | |
328 | stubgv = CvGV(cv); | |
329 | if (GvCV(stubgv) != cv) /* orphaned import */ | |
330 | stubgv = gv; | |
331 | } | |
332 | autogv = gv_autoload4(GvSTASH(stubgv), | |
333 | GvNAME(stubgv), GvNAMELEN(stubgv), TRUE); | |
dc848c6f | 334 | if (autogv) |
335 | gv = autogv; | |
336 | } | |
337 | } | |
44a8e56a | 338 | |
339 | return gv; | |
340 | } | |
341 | ||
342 | GV* | |
08105a92 | 343 | gv_autoload4(HV *stash, const char *name, STRLEN len, I32 method) |
44a8e56a | 344 | { |
d008e5eb | 345 | dTHR; |
44a8e56a | 346 | static char autoload[] = "AUTOLOAD"; |
347 | static STRLEN autolen = 8; | |
348 | GV* gv; | |
349 | CV* cv; | |
350 | HV* varstash; | |
351 | GV* vargv; | |
352 | SV* varsv; | |
353 | ||
354 | if (len == autolen && strnEQ(name, autoload, autolen)) | |
355 | return Nullgv; | |
dc848c6f | 356 | if (!(gv = gv_fetchmeth(stash, autoload, autolen, FALSE))) |
357 | return Nullgv; | |
358 | cv = GvCV(gv); | |
359 | ||
360 | /* | |
361 | * Inheriting AUTOLOAD for non-methods works ... for now. | |
362 | */ | |
599cee73 PM |
363 | if (ckWARN(WARN_DEPRECATED) && !method && |
364 | (GvCVGEN(gv) || GvSTASH(gv) != stash)) | |
365 | warner(WARN_DEPRECATED, | |
dc848c6f | 366 | "Use of inherited AUTOLOAD for non-method %s::%.*s() is deprecated", |
367 | HvNAME(stash), (int)len, name); | |
44a8e56a | 368 | |
369 | /* | |
370 | * Given &FOO::AUTOLOAD, set $FOO::AUTOLOAD to desired function name. | |
371 | * The subroutine's original name may not be "AUTOLOAD", so we don't | |
372 | * use that, but for lack of anything better we will use the sub's | |
373 | * original package to look up $AUTOLOAD. | |
374 | */ | |
375 | varstash = GvSTASH(CvGV(cv)); | |
376 | vargv = *(GV**)hv_fetch(varstash, autoload, autolen, TRUE); | |
377 | if (!isGV(vargv)) | |
378 | gv_init(vargv, varstash, autoload, autolen, FALSE); | |
379 | varsv = GvSV(vargv); | |
380 | sv_setpv(varsv, HvNAME(stash)); | |
381 | sv_catpvn(varsv, "::", 2); | |
382 | sv_catpvn(varsv, name, len); | |
383 | SvTAINTED_off(varsv); | |
a0d0e21e LW |
384 | return gv; |
385 | } | |
386 | ||
387 | HV* | |
08105a92 | 388 | gv_stashpv(const char *name, I32 create) |
a0d0e21e | 389 | { |
dc437b57 | 390 | return gv_stashpvn(name, strlen(name), create); |
391 | } | |
392 | ||
393 | HV* | |
08105a92 | 394 | gv_stashpvn(const char *name, U32 namelen, I32 create) |
dc437b57 | 395 | { |
46fc3d4c | 396 | char smallbuf[256]; |
397 | char *tmpbuf; | |
a0d0e21e LW |
398 | HV *stash; |
399 | GV *tmpgv; | |
dc437b57 | 400 | |
46fc3d4c | 401 | if (namelen + 3 < sizeof smallbuf) |
402 | tmpbuf = smallbuf; | |
403 | else | |
404 | New(606, tmpbuf, namelen + 3, char); | |
dc437b57 | 405 | Copy(name,tmpbuf,namelen,char); |
406 | tmpbuf[namelen++] = ':'; | |
407 | tmpbuf[namelen++] = ':'; | |
408 | tmpbuf[namelen] = '\0'; | |
46fc3d4c | 409 | tmpgv = gv_fetchpv(tmpbuf, create, SVt_PVHV); |
410 | if (tmpbuf != smallbuf) | |
411 | Safefree(tmpbuf); | |
a0d0e21e LW |
412 | if (!tmpgv) |
413 | return 0; | |
414 | if (!GvHV(tmpgv)) | |
415 | GvHV(tmpgv) = newHV(); | |
416 | stash = GvHV(tmpgv); | |
417 | if (!HvNAME(stash)) | |
418 | HvNAME(stash) = savepv(name); | |
419 | return stash; | |
463ee0b2 LW |
420 | } |
421 | ||
a0d0e21e | 422 | HV* |
8ac85365 | 423 | gv_stashsv(SV *sv, I32 create) |
a0d0e21e | 424 | { |
dc437b57 | 425 | register char *ptr; |
426 | STRLEN len; | |
427 | ptr = SvPV(sv,len); | |
428 | return gv_stashpvn(ptr, len, create); | |
a0d0e21e LW |
429 | } |
430 | ||
431 | ||
463ee0b2 | 432 | GV * |
08105a92 | 433 | gv_fetchpv(const char *nambeg, I32 add, I32 sv_type) |
79072805 | 434 | { |
11343788 | 435 | dTHR; |
08105a92 | 436 | register const char *name = nambeg; |
463ee0b2 | 437 | register GV *gv = 0; |
79072805 | 438 | GV**gvp; |
79072805 | 439 | I32 len; |
08105a92 | 440 | register const char *namend; |
463ee0b2 | 441 | HV *stash = 0; |
9607fc9c | 442 | U32 add_gvflags = 0; |
79072805 | 443 | |
c07a80fd | 444 | if (*name == '*' && isALPHA(name[1])) /* accidental stringify on a GV? */ |
445 | name++; | |
446 | ||
79072805 | 447 | for (namend = name; *namend; namend++) { |
463ee0b2 LW |
448 | if ((*namend == '\'' && namend[1]) || |
449 | (*namend == ':' && namend[1] == ':')) | |
450 | { | |
463ee0b2 | 451 | if (!stash) |
3280af22 | 452 | stash = PL_defstash; |
dc437b57 | 453 | if (!stash || !SvREFCNT(stash)) /* symbol table under destruction */ |
a0d0e21e | 454 | return Nullgv; |
463ee0b2 | 455 | |
85e6fe83 LW |
456 | len = namend - name; |
457 | if (len > 0) { | |
3c78fafa | 458 | char smallbuf[256]; |
62b57502 | 459 | char *tmpbuf; |
62b57502 | 460 | |
3c78fafa GS |
461 | if (len + 3 < sizeof smallbuf) |
462 | tmpbuf = smallbuf; | |
62b57502 MB |
463 | else |
464 | New(601, tmpbuf, len+3, char); | |
a0d0e21e LW |
465 | Copy(name, tmpbuf, len, char); |
466 | tmpbuf[len++] = ':'; | |
467 | tmpbuf[len++] = ':'; | |
468 | tmpbuf[len] = '\0'; | |
463ee0b2 | 469 | gvp = (GV**)hv_fetch(stash,tmpbuf,len,add); |
6fa846a0 | 470 | gv = gvp ? *gvp : Nullgv; |
3280af22 | 471 | if (gv && gv != (GV*)&PL_sv_undef) { |
6fa846a0 | 472 | if (SvTYPE(gv) != SVt_PVGV) |
0f303493 | 473 | gv_init(gv, stash, tmpbuf, len, (add & GV_ADDMULTI)); |
6fa846a0 GS |
474 | else |
475 | GvMULTI_on(gv); | |
476 | } | |
3c78fafa | 477 | if (tmpbuf != smallbuf) |
62b57502 | 478 | Safefree(tmpbuf); |
3280af22 | 479 | if (!gv || gv == (GV*)&PL_sv_undef) |
a0d0e21e | 480 | return Nullgv; |
85e6fe83 | 481 | |
463ee0b2 LW |
482 | if (!(stash = GvHV(gv))) |
483 | stash = GvHV(gv) = newHV(); | |
85e6fe83 | 484 | |
463ee0b2 | 485 | if (!HvNAME(stash)) |
a0d0e21e | 486 | HvNAME(stash) = savepvn(nambeg, namend - nambeg); |
463ee0b2 LW |
487 | } |
488 | ||
489 | if (*namend == ':') | |
490 | namend++; | |
491 | namend++; | |
492 | name = namend; | |
493 | if (!*name) | |
3280af22 | 494 | return gv ? gv : (GV*)*hv_fetch(PL_defstash, "main::", 6, TRUE); |
79072805 | 495 | } |
79072805 | 496 | } |
a0d0e21e LW |
497 | len = namend - name; |
498 | if (!len) | |
499 | len = 1; | |
463ee0b2 LW |
500 | |
501 | /* No stash in name, so see how we can default */ | |
502 | ||
503 | if (!stash) { | |
b86a2fa7 GS |
504 | if (isIDFIRST(*name) |
505 | || (IN_UTF8 && ((*name & 0xc0) == 0xc0) && isIDFIRST_utf8((U8*)name))) | |
506 | { | |
9607fc9c | 507 | bool global = FALSE; |
508 | ||
463ee0b2 | 509 | if (isUPPER(*name)) { |
9d116dd7 JH |
510 | if (*name == 'S' && ( |
511 | strEQ(name, "SIG") || | |
512 | strEQ(name, "STDIN") || | |
513 | strEQ(name, "STDOUT") || | |
514 | strEQ(name, "STDERR"))) | |
515 | global = TRUE; | |
516 | else if (*name == 'I' && strEQ(name, "INC")) | |
517 | global = TRUE; | |
518 | else if (*name == 'E' && strEQ(name, "ENV")) | |
519 | global = TRUE; | |
463ee0b2 LW |
520 | else if (*name == 'A' && ( |
521 | strEQ(name, "ARGV") || | |
9d116dd7 | 522 | strEQ(name, "ARGVOUT"))) |
463ee0b2 LW |
523 | global = TRUE; |
524 | } | |
525 | else if (*name == '_' && !name[1]) | |
526 | global = TRUE; | |
9607fc9c | 527 | |
463ee0b2 | 528 | if (global) |
3280af22 NIS |
529 | stash = PL_defstash; |
530 | else if ((COP*)PL_curcop == &PL_compiling) { | |
531 | stash = PL_curstash; | |
532 | if (add && (PL_hints & HINT_STRICT_VARS) && | |
748a9306 LW |
533 | sv_type != SVt_PVCV && |
534 | sv_type != SVt_PVGV && | |
4633a7c4 | 535 | sv_type != SVt_PVFM && |
c07a80fd | 536 | sv_type != SVt_PVIO && |
377b8fbc | 537 | !(len == 1 && sv_type == SVt_PV && strchr("ab",*name)) ) |
748a9306 | 538 | { |
4633a7c4 LW |
539 | gvp = (GV**)hv_fetch(stash,name,len,0); |
540 | if (!gvp || | |
3280af22 | 541 | *gvp == (GV*)&PL_sv_undef || |
a5f75d66 AD |
542 | SvTYPE(*gvp) != SVt_PVGV) |
543 | { | |
4633a7c4 | 544 | stash = 0; |
a5f75d66 AD |
545 | } |
546 | else if (sv_type == SVt_PV && !GvIMPORTED_SV(*gvp) || | |
547 | sv_type == SVt_PVAV && !GvIMPORTED_AV(*gvp) || | |
548 | sv_type == SVt_PVHV && !GvIMPORTED_HV(*gvp) ) | |
4633a7c4 | 549 | { |
a5f75d66 | 550 | warn("Variable \"%c%s\" is not imported", |
4633a7c4 LW |
551 | sv_type == SVt_PVAV ? '@' : |
552 | sv_type == SVt_PVHV ? '%' : '$', | |
553 | name); | |
8ebc5c01 | 554 | if (GvCVu(*gvp)) |
4633a7c4 | 555 | warn("(Did you mean &%s instead?)\n", name); |
a0d0e21e | 556 | stash = 0; |
4633a7c4 | 557 | } |
a0d0e21e | 558 | } |
85e6fe83 | 559 | } |
463ee0b2 | 560 | else |
3280af22 | 561 | stash = PL_curcop->cop_stash; |
463ee0b2 LW |
562 | } |
563 | else | |
3280af22 | 564 | stash = PL_defstash; |
463ee0b2 LW |
565 | } |
566 | ||
567 | /* By this point we should have a stash and a name */ | |
568 | ||
a0d0e21e | 569 | if (!stash) { |
93233ece | 570 | if (!add) |
a0d0e21e | 571 | return Nullgv; |
462551cc | 572 | { |
2c4aebbd T |
573 | char sv_type_char = ((sv_type == SVt_PV) ? '$' |
574 | : (sv_type == SVt_PVAV) ? '@' | |
575 | : (sv_type == SVt_PVHV) ? '%' | |
576 | : 0); | |
577 | if (sv_type_char) | |
578 | warn("Global symbol \"%c%s\" requires explicit package name", | |
579 | sv_type_char, name); | |
580 | else | |
93233ece CS |
581 | warn("Global symbol \"%s\" requires explicit package name", |
582 | name); | |
a0d0e21e | 583 | } |
3280af22 NIS |
584 | ++PL_error_count; |
585 | stash = PL_curstash ? PL_curstash : PL_defstash; /* avoid core dumps */ | |
93233ece CS |
586 | add_gvflags = ((sv_type == SVt_PV) ? GVf_IMPORTED_SV |
587 | : (sv_type == SVt_PVAV) ? GVf_IMPORTED_AV | |
588 | : (sv_type == SVt_PVHV) ? GVf_IMPORTED_HV | |
589 | : 0); | |
a0d0e21e LW |
590 | } |
591 | ||
592 | if (!SvREFCNT(stash)) /* symbol table under destruction */ | |
593 | return Nullgv; | |
594 | ||
79072805 | 595 | gvp = (GV**)hv_fetch(stash,name,len,add); |
3280af22 | 596 | if (!gvp || *gvp == (GV*)&PL_sv_undef) |
79072805 LW |
597 | return Nullgv; |
598 | gv = *gvp; | |
599 | if (SvTYPE(gv) == SVt_PVGV) { | |
a0d0e21e | 600 | if (add) { |
a5f75d66 | 601 | GvMULTI_on(gv); |
a0d0e21e LW |
602 | gv_init_sv(gv, sv_type); |
603 | } | |
79072805 | 604 | return gv; |
55d729e4 GS |
605 | } else if (add & GV_NOINIT) { |
606 | return gv; | |
79072805 | 607 | } |
93a17b20 LW |
608 | |
609 | /* Adding a new symbol */ | |
610 | ||
55d729e4 | 611 | if (add & GV_ADDWARN) |
a0d0e21e | 612 | warn("Had to create %s unexpectedly", nambeg); |
55d729e4 | 613 | gv_init(gv, stash, name, len, add & GV_ADDMULTI); |
a0d0e21e | 614 | gv_init_sv(gv, sv_type); |
9607fc9c | 615 | GvFLAGS(gv) |= add_gvflags; |
93a17b20 LW |
616 | |
617 | /* set up magic where warranted */ | |
618 | switch (*name) { | |
a0d0e21e LW |
619 | case 'A': |
620 | if (strEQ(name, "ARGV")) { | |
621 | IoFLAGS(GvIOn(gv)) |= IOf_ARGV|IOf_START; | |
622 | } | |
623 | break; | |
624 | ||
ed6116ce LW |
625 | case 'a': |
626 | case 'b': | |
627 | if (len == 1) | |
a5f75d66 | 628 | GvMULTI_on(gv); |
ed6116ce | 629 | break; |
a0d0e21e LW |
630 | case 'E': |
631 | if (strnEQ(name, "EXPORT", 6)) | |
a5f75d66 | 632 | GvMULTI_on(gv); |
a0d0e21e | 633 | break; |
463ee0b2 LW |
634 | case 'I': |
635 | if (strEQ(name, "ISA")) { | |
636 | AV* av = GvAVn(gv); | |
a5f75d66 | 637 | GvMULTI_on(gv); |
a0d0e21e | 638 | sv_magic((SV*)av, (SV*)gv, 'I', Nullch, 0); |
93965878 | 639 | /* NOTE: No support for tied ISA */ |
55d729e4 GS |
640 | if ((add & GV_ADDMULTI) && strEQ(nambeg,"AnyDBM_File::ISA") |
641 | && AvFILLp(av) == -1) | |
85e6fe83 | 642 | { |
a0d0e21e LW |
643 | char *pname; |
644 | av_push(av, newSVpv(pname = "NDBM_File",0)); | |
dc437b57 | 645 | gv_stashpvn(pname, 9, TRUE); |
a0d0e21e | 646 | av_push(av, newSVpv(pname = "DB_File",0)); |
dc437b57 | 647 | gv_stashpvn(pname, 7, TRUE); |
a0d0e21e | 648 | av_push(av, newSVpv(pname = "GDBM_File",0)); |
dc437b57 | 649 | gv_stashpvn(pname, 9, TRUE); |
a0d0e21e | 650 | av_push(av, newSVpv(pname = "SDBM_File",0)); |
dc437b57 | 651 | gv_stashpvn(pname, 9, TRUE); |
a0d0e21e | 652 | av_push(av, newSVpv(pname = "ODBM_File",0)); |
dc437b57 | 653 | gv_stashpvn(pname, 9, TRUE); |
85e6fe83 | 654 | } |
463ee0b2 LW |
655 | } |
656 | break; | |
a0d0e21e LW |
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; | |
93a17b20 LW |
664 | case 'S': |
665 | if (strEQ(name, "SIG")) { | |
666 | HV *hv; | |
dc437b57 | 667 | I32 i; |
3280af22 NIS |
668 | PL_siggv = gv; |
669 | GvMULTI_on(PL_siggv); | |
670 | hv = GvHVn(PL_siggv); | |
671 | hv_magic(hv, PL_siggv, 'S'); | |
22c35a8c | 672 | for(i=1;PL_sig_name[i];i++) { |
dc437b57 | 673 | SV ** init; |
22c35a8c | 674 | init=hv_fetch(hv,PL_sig_name[i],strlen(PL_sig_name[i]),1); |
dc437b57 | 675 | if(init) |
3280af22 | 676 | sv_setsv(*init,&PL_sv_undef); |
22c35a8c GS |
677 | PL_psig_ptr[i] = 0; |
678 | PL_psig_name[i] = 0; | |
dc437b57 | 679 | } |
93a17b20 LW |
680 | } |
681 | break; | |
682 | ||
683 | case '&': | |
463ee0b2 LW |
684 | if (len > 1) |
685 | break; | |
3280af22 NIS |
686 | PL_ampergv = gv; |
687 | PL_sawampersand = TRUE; | |
a0d0e21e | 688 | goto ro_magicalize; |
93a17b20 LW |
689 | |
690 | case '`': | |
463ee0b2 LW |
691 | if (len > 1) |
692 | break; | |
3280af22 NIS |
693 | PL_leftgv = gv; |
694 | PL_sawampersand = TRUE; | |
a0d0e21e | 695 | goto ro_magicalize; |
93a17b20 LW |
696 | |
697 | case '\'': | |
463ee0b2 LW |
698 | if (len > 1) |
699 | break; | |
3280af22 NIS |
700 | PL_rightgv = gv; |
701 | PL_sawampersand = TRUE; | |
a0d0e21e | 702 | goto ro_magicalize; |
93a17b20 LW |
703 | |
704 | case ':': | |
463ee0b2 LW |
705 | if (len > 1) |
706 | break; | |
3280af22 | 707 | sv_setpv(GvSV(gv),PL_chopset); |
93a17b20 LW |
708 | goto magicalize; |
709 | ||
ff0cee69 | 710 | case '?': |
711 | if (len > 1) | |
712 | break; | |
713 | #ifdef COMPLEX_STATUS | |
07f14f54 | 714 | (void)SvUPGRADE(GvSV(gv), SVt_PVLV); |
ff0cee69 | 715 | #endif |
716 | goto magicalize; | |
717 | ||
067391ea | 718 | case '!': |
4318d5a0 | 719 | if (len > 1) |
067391ea | 720 | break; |
3280af22 | 721 | if (sv_type > SVt_PV && PL_curcop != &PL_compiling) { |
067391ea GS |
722 | HV* stash = gv_stashpvn("Errno",5,FALSE); |
723 | if(!stash || !(gv_fetchmethod(stash, "TIEHASH"))) { | |
724 | dSP; | |
725 | PUTBACK; | |
726 | perl_require_pv("Errno.pm"); | |
727 | SPAGAIN; | |
728 | stash = gv_stashpvn("Errno",5,FALSE); | |
729 | if (!stash || !(gv_fetchmethod(stash, "TIEHASH"))) | |
1d2dff63 | 730 | croak("Can't use %%! because Errno.pm is not available"); |
067391ea GS |
731 | } |
732 | } | |
733 | goto magicalize; | |
6cef1e77 IZ |
734 | case '-': |
735 | if (len > 1) | |
736 | break; | |
737 | else { | |
738 | AV* av = GvAVn(gv); | |
739 | sv_magic((SV*)av, Nullsv, 'D', Nullch, 0); | |
740 | } | |
741 | goto magicalize; | |
93a17b20 | 742 | case '#': |
a0d0e21e | 743 | case '*': |
599cee73 PM |
744 | if (ckWARN(WARN_DEPRECATED) && len == 1 && sv_type == SVt_PV) |
745 | warner(WARN_DEPRECATED, "Use of $%s is deprecated", name); | |
a0d0e21e LW |
746 | /* FALL THROUGH */ |
747 | case '[': | |
93a17b20 LW |
748 | case '^': |
749 | case '~': | |
750 | case '=': | |
93a17b20 LW |
751 | case '%': |
752 | case '.': | |
93a17b20 LW |
753 | case '(': |
754 | case ')': | |
755 | case '<': | |
756 | case '>': | |
757 | case ',': | |
758 | case '\\': | |
759 | case '/': | |
93a17b20 | 760 | case '|': |
748a9306 | 761 | case '\001': |
599cee73 | 762 | case '\002': |
49460fe6 | 763 | case '\003': |
93a17b20 | 764 | case '\004': |
ad8898e0 | 765 | case '\005': |
748a9306 | 766 | case '\006': |
a0d0e21e | 767 | case '\010': |
9d116dd7 | 768 | case '\011': /* NOT \t in EBCDIC */ |
ad8898e0 | 769 | case '\017': |
93a17b20 LW |
770 | case '\020': |
771 | case '\024': | |
772 | case '\027': | |
463ee0b2 LW |
773 | if (len > 1) |
774 | break; | |
775 | goto magicalize; | |
6cef1e77 IZ |
776 | case '\023': |
777 | if (len > 1) | |
778 | break; | |
779 | goto ro_magicalize; | |
463ee0b2 | 780 | |
a0d0e21e | 781 | case '+': |
6cef1e77 IZ |
782 | if (len > 1) |
783 | break; | |
784 | else { | |
785 | AV* av = GvAVn(gv); | |
786 | sv_magic((SV*)av, (SV*)av, 'D', Nullch, 0); | |
787 | } | |
788 | /* FALL THROUGH */ | |
463ee0b2 LW |
789 | case '1': |
790 | case '2': | |
791 | case '3': | |
792 | case '4': | |
793 | case '5': | |
794 | case '6': | |
795 | case '7': | |
796 | case '8': | |
797 | case '9': | |
a0d0e21e LW |
798 | ro_magicalize: |
799 | SvREADONLY_on(GvSV(gv)); | |
93a17b20 | 800 | magicalize: |
463ee0b2 | 801 | sv_magic(GvSV(gv), (SV*)gv, 0, name, len); |
93a17b20 LW |
802 | break; |
803 | ||
804 | case '\014': | |
463ee0b2 LW |
805 | if (len > 1) |
806 | break; | |
93a17b20 | 807 | sv_setpv(GvSV(gv),"\f"); |
3280af22 | 808 | PL_formfeed = GvSV(gv); |
93a17b20 LW |
809 | break; |
810 | case ';': | |
463ee0b2 LW |
811 | if (len > 1) |
812 | break; | |
93a17b20 LW |
813 | sv_setpv(GvSV(gv),"\034"); |
814 | break; | |
463ee0b2 LW |
815 | case ']': |
816 | if (len == 1) { | |
f86702cc | 817 | SV *sv = GvSV(gv); |
07f14f54 | 818 | (void)SvUPGRADE(sv, SVt_PVNV); |
3280af22 | 819 | sv_setpv(sv, PL_patchlevel); |
f86702cc | 820 | (void)sv_2nv(sv); |
821 | SvREADONLY_on(sv); | |
93a17b20 LW |
822 | } |
823 | break; | |
79072805 | 824 | } |
93a17b20 | 825 | return gv; |
79072805 LW |
826 | } |
827 | ||
828 | void | |
08105a92 | 829 | gv_fullname3(SV *sv, GV *gv, const char *prefix) |
79072805 LW |
830 | { |
831 | HV *hv = GvSTASH(gv); | |
f967eb5f | 832 | if (!hv) { |
833 | SvOK_off(sv); | |
79072805 | 834 | return; |
f967eb5f | 835 | } |
836 | sv_setpv(sv, prefix ? prefix : ""); | |
79072805 | 837 | sv_catpv(sv,HvNAME(hv)); |
463ee0b2 | 838 | sv_catpvn(sv,"::", 2); |
79072805 LW |
839 | sv_catpvn(sv,GvNAME(gv),GvNAMELEN(gv)); |
840 | } | |
841 | ||
842 | void | |
08105a92 | 843 | gv_efullname3(SV *sv, GV *gv, const char *prefix) |
79072805 | 844 | { |
f967eb5f | 845 | GV *egv = GvEGV(gv); |
748a9306 LW |
846 | if (!egv) |
847 | egv = gv; | |
f6aff53a | 848 | gv_fullname3(sv, egv, prefix); |
849 | } | |
850 | ||
851 | /* XXX compatibility with versions <= 5.003. */ | |
852 | void | |
8ac85365 | 853 | gv_fullname(SV *sv, GV *gv) |
f6aff53a | 854 | { |
855 | gv_fullname3(sv, gv, sv == (SV*)gv ? "*" : ""); | |
856 | } | |
857 | ||
858 | /* XXX compatibility with versions <= 5.003. */ | |
859 | void | |
8ac85365 | 860 | gv_efullname(SV *sv, GV *gv) |
f6aff53a | 861 | { |
862 | gv_efullname3(sv, gv, sv == (SV*)gv ? "*" : ""); | |
79072805 LW |
863 | } |
864 | ||
865 | IO * | |
8ac85365 | 866 | newIO(void) |
79072805 | 867 | { |
11343788 | 868 | dTHR; |
79072805 | 869 | IO *io; |
8990e307 LW |
870 | GV *iogv; |
871 | ||
872 | io = (IO*)NEWSV(0,0); | |
a0d0e21e | 873 | sv_upgrade((SV *)io,SVt_PVIO); |
8990e307 LW |
874 | SvREFCNT(io) = 1; |
875 | SvOBJECT_on(io); | |
c9de509e | 876 | iogv = gv_fetchpv("FileHandle::", FALSE, SVt_PVHV); |
5f2d631d GS |
877 | /* unless exists($main::{FileHandle}) and defined(%main::FileHandle::) */ |
878 | if (!(iogv && GvHV(iogv) && HvARRAY(GvHV(iogv)))) | |
c9de509e | 879 | iogv = gv_fetchpv("IO::Handle::", TRUE, SVt_PVHV); |
8990e307 | 880 | SvSTASH(io) = (HV*)SvREFCNT_inc(GvHV(iogv)); |
79072805 LW |
881 | return io; |
882 | } | |
883 | ||
884 | void | |
8ac85365 | 885 | gv_check(HV *stash) |
79072805 | 886 | { |
11343788 | 887 | dTHR; |
79072805 LW |
888 | register HE *entry; |
889 | register I32 i; | |
890 | register GV *gv; | |
463ee0b2 | 891 | HV *hv; |
a0d0e21e | 892 | GV *filegv; |
463ee0b2 | 893 | |
8990e307 LW |
894 | if (!HvARRAY(stash)) |
895 | return; | |
a0d0e21e | 896 | for (i = 0; i <= (I32) HvMAX(stash); i++) { |
dc437b57 | 897 | for (entry = HvARRAY(stash)[i]; entry; entry = HeNEXT(entry)) { |
898 | if (HeKEY(entry)[HeKLEN(entry)-1] == ':' && | |
899 | (gv = (GV*)HeVAL(entry)) && (hv = GvHV(gv)) && HvNAME(hv)) | |
a0d0e21e | 900 | { |
3280af22 | 901 | if (hv != PL_defstash) |
a0d0e21e LW |
902 | gv_check(hv); /* nested package */ |
903 | } | |
dc437b57 | 904 | else if (isALPHA(*HeKEY(entry))) { |
905 | gv = (GV*)HeVAL(entry); | |
55d729e4 | 906 | if (SvTYPE(gv) != SVt_PVGV || GvMULTI(gv)) |
463ee0b2 | 907 | continue; |
3280af22 | 908 | PL_curcop->cop_line = GvLINE(gv); |
a0d0e21e | 909 | filegv = GvFILEGV(gv); |
3280af22 | 910 | PL_curcop->cop_filegv = filegv; |
a5f75d66 | 911 | if (filegv && GvMULTI(filegv)) /* Filename began with slash */ |
8990e307 | 912 | continue; |
599cee73 PM |
913 | warner(WARN_ONCE, |
914 | "Name \"%s::%s\" used only once: possible typo", | |
a0d0e21e | 915 | HvNAME(stash), GvNAME(gv)); |
463ee0b2 | 916 | } |
79072805 LW |
917 | } |
918 | } | |
919 | } | |
920 | ||
921 | GV * | |
8ac85365 | 922 | newGVgen(char *pack) |
79072805 | 923 | { |
3280af22 | 924 | return gv_fetchpv(form("%s::_GEN_%ld", pack, (long)PL_gensym++), |
46fc3d4c | 925 | TRUE, SVt_PVGV); |
79072805 LW |
926 | } |
927 | ||
928 | /* hopefully this is only called on local symbol table entries */ | |
929 | ||
930 | GP* | |
8ac85365 | 931 | gp_ref(GP *gp) |
79072805 LW |
932 | { |
933 | gp->gp_refcnt++; | |
44a8e56a | 934 | if (gp->gp_cv) { |
935 | if (gp->gp_cvgen) { | |
936 | /* multi-named GPs cannot be used for method cache */ | |
937 | SvREFCNT_dec(gp->gp_cv); | |
938 | gp->gp_cv = Nullcv; | |
939 | gp->gp_cvgen = 0; | |
940 | } | |
941 | else { | |
942 | /* Adding a new name to a subroutine invalidates method cache */ | |
3280af22 | 943 | PL_sub_generation++; |
44a8e56a | 944 | } |
945 | } | |
79072805 | 946 | return gp; |
79072805 LW |
947 | } |
948 | ||
949 | void | |
8ac85365 | 950 | gp_free(GV *gv) |
79072805 | 951 | { |
79072805 | 952 | GP* gp; |
377b8fbc | 953 | CV* cv; |
79072805 LW |
954 | |
955 | if (!gv || !(gp = GvGP(gv))) | |
956 | return; | |
957 | if (gp->gp_refcnt == 0) { | |
958 | warn("Attempt to free unreferenced glob pointers"); | |
959 | return; | |
960 | } | |
44a8e56a | 961 | if (gp->gp_cv) { |
962 | /* Deleting the name of a subroutine invalidates method cache */ | |
3280af22 | 963 | PL_sub_generation++; |
44a8e56a | 964 | } |
748a9306 LW |
965 | if (--gp->gp_refcnt > 0) { |
966 | if (gp->gp_egv == gv) | |
967 | gp->gp_egv = 0; | |
79072805 | 968 | return; |
748a9306 | 969 | } |
79072805 | 970 | |
8990e307 LW |
971 | SvREFCNT_dec(gp->gp_sv); |
972 | SvREFCNT_dec(gp->gp_av); | |
973 | SvREFCNT_dec(gp->gp_hv); | |
377b8fbc | 974 | SvREFCNT_dec(gp->gp_io); |
a6006777 | 975 | SvREFCNT_dec(gp->gp_cv); |
748a9306 LW |
976 | SvREFCNT_dec(gp->gp_form); |
977 | ||
79072805 LW |
978 | Safefree(gp); |
979 | GvGP(gv) = 0; | |
980 | } | |
981 | ||
982 | #if defined(CRIPPLED_CC) && (defined(iAPX286) || defined(M_I286) || defined(I80286)) | |
983 | #define MICROPORT | |
984 | #endif | |
985 | ||
986 | #ifdef MICROPORT /* Microport 2.4 hack */ | |
987 | AV *GvAVn(gv) | |
988 | register GV *gv; | |
989 | { | |
990 | if (GvGP(gv)->gp_av) | |
991 | return GvGP(gv)->gp_av; | |
992 | else | |
993 | return GvGP(gv_AVadd(gv))->gp_av; | |
994 | } | |
995 | ||
996 | HV *GvHVn(gv) | |
997 | register GV *gv; | |
998 | { | |
999 | if (GvGP(gv)->gp_hv) | |
1000 | return GvGP(gv)->gp_hv; | |
1001 | else | |
1002 | return GvGP(gv_HVadd(gv))->gp_hv; | |
1003 | } | |
1004 | #endif /* Microport 2.4 hack */ | |
a0d0e21e | 1005 | |
a0d0e21e LW |
1006 | /* Updates and caches the CV's */ |
1007 | ||
1008 | bool | |
8ac85365 | 1009 | Gv_AMupdate(HV *stash) |
a0d0e21e | 1010 | { |
11343788 | 1011 | dTHR; |
a0d0e21e LW |
1012 | GV** gvp; |
1013 | HV* hv; | |
1014 | GV* gv; | |
1015 | CV* cv; | |
1016 | MAGIC* mg=mg_find((SV*)stash,'c'); | |
8ac85365 | 1017 | AMT *amtp = (mg) ? (AMT*)mg->mg_ptr: (AMT *) NULL; |
a6006777 | 1018 | AMT amt; |
2d8e6c8d | 1019 | STRLEN n_a; |
a0d0e21e | 1020 | |
3280af22 NIS |
1021 | if (mg && amtp->was_ok_am == PL_amagic_generation |
1022 | && amtp->was_ok_sub == PL_sub_generation) | |
a6006777 | 1023 | return AMT_AMAGIC(amtp); |
1024 | if (amtp && AMT_AMAGIC(amtp)) { /* Have table. */ | |
748a9306 | 1025 | int i; |
a6006777 | 1026 | for (i=1; i<NofAMmeth; i++) { |
748a9306 LW |
1027 | if (amtp->table[i]) { |
1028 | SvREFCNT_dec(amtp->table[i]); | |
1029 | } | |
1030 | } | |
1031 | } | |
a0d0e21e LW |
1032 | sv_unmagic((SV*)stash, 'c'); |
1033 | ||
1034 | DEBUG_o( deb("Recalcing overload magic in package %s\n",HvNAME(stash)) ); | |
1035 | ||
3280af22 NIS |
1036 | amt.was_ok_am = PL_amagic_generation; |
1037 | amt.was_ok_sub = PL_sub_generation; | |
a6006777 | 1038 | amt.fallback = AMGfallNO; |
1039 | amt.flags = 0; | |
1040 | ||
1041 | #ifdef OVERLOAD_VIA_HASH | |
1042 | gvp=(GV**)hv_fetch(stash,"OVERLOAD",8,FALSE); /* A shortcut */ | |
3280af22 | 1043 | if (gvp && ((gv = *gvp) != (GV*)&PL_sv_undef && (hv = GvHV(gv)))) { |
a0d0e21e LW |
1044 | int filled=0; |
1045 | int i; | |
1046 | char *cp; | |
a0d0e21e LW |
1047 | SV* sv; |
1048 | SV** svp; | |
a0d0e21e | 1049 | |
22c35a8c | 1050 | /* Work with "fallback" key, which we assume to be first in PL_AMG_names */ |
a0d0e21e | 1051 | |
22c35a8c | 1052 | if (( cp = (char *)PL_AMG_names[0] ) && |
a6006777 | 1053 | (svp = (SV**)hv_fetch(hv,cp,strlen(cp),FALSE)) && (sv = *svp)) { |
a0d0e21e LW |
1054 | if (SvTRUE(sv)) amt.fallback=AMGfallYES; |
1055 | else if (SvOK(sv)) amt.fallback=AMGfallNEVER; | |
1056 | } | |
a6006777 | 1057 | for (i = 1; i < NofAMmeth; i++) { |
1058 | cv = 0; | |
22c35a8c | 1059 | cp = (char *)PL_AMG_names[i]; |
a6006777 | 1060 | |
1061 | svp = (SV**)hv_fetch(hv, cp, strlen(cp), FALSE); | |
3280af22 | 1062 | if (svp && ((sv = *svp) != &PL_sv_undef)) { |
a0d0e21e LW |
1063 | switch (SvTYPE(sv)) { |
1064 | default: | |
1065 | if (!SvROK(sv)) { | |
1066 | if (!SvOK(sv)) break; | |
2d8e6c8d | 1067 | gv = gv_fetchmethod(stash, SvPV(sv, n_a)); |
a0d0e21e LW |
1068 | if (gv) cv = GvCV(gv); |
1069 | break; | |
1070 | } | |
1071 | cv = (CV*)SvRV(sv); | |
1072 | if (SvTYPE(cv) == SVt_PVCV) | |
1073 | break; | |
1074 | /* FALL THROUGH */ | |
1075 | case SVt_PVHV: | |
1076 | case SVt_PVAV: | |
a6006777 | 1077 | croak("Not a subroutine reference in overload table"); |
a0d0e21e LW |
1078 | return FALSE; |
1079 | case SVt_PVCV: | |
8ebc5c01 | 1080 | cv = (CV*)sv; |
1081 | break; | |
a0d0e21e | 1082 | case SVt_PVGV: |
8ebc5c01 | 1083 | if (!(cv = GvCVu((GV*)sv))) |
1084 | cv = sv_2cv(sv, &stash, &gv, TRUE); | |
1085 | break; | |
a0d0e21e LW |
1086 | } |
1087 | if (cv) filled=1; | |
1088 | else { | |
a6006777 | 1089 | croak("Method for operation %s not found in package %.256s during blessing\n", |
a0d0e21e LW |
1090 | cp,HvNAME(stash)); |
1091 | return FALSE; | |
1092 | } | |
1093 | } | |
a6006777 | 1094 | #else |
1095 | { | |
1096 | int filled = 0; | |
1097 | int i; | |
9607fc9c | 1098 | const char *cp; |
a6006777 | 1099 | SV* sv = NULL; |
1100 | SV** svp; | |
1101 | ||
22c35a8c | 1102 | /* Work with "fallback" key, which we assume to be first in PL_AMG_names */ |
a6006777 | 1103 | |
22c35a8c | 1104 | if ( cp = PL_AMG_names[0] ) { |
a6006777 | 1105 | /* Try to find via inheritance. */ |
774d564b | 1106 | gv = gv_fetchmeth(stash, "()", 2, -1); /* A cookie: "()". */ |
a6006777 | 1107 | if (gv) sv = GvSV(gv); |
1108 | ||
774d564b | 1109 | if (!gv) goto no_table; |
a6006777 | 1110 | else if (SvTRUE(sv)) amt.fallback=AMGfallYES; |
1111 | else if (SvOK(sv)) amt.fallback=AMGfallNEVER; | |
1112 | } | |
1113 | ||
1114 | for (i = 1; i < NofAMmeth; i++) { | |
22c35a8c | 1115 | SV *cookie = sv_2mortal(newSVpvf("(%s", cp = PL_AMG_names[i])); |
44a8e56a | 1116 | DEBUG_o( deb("Checking overloading of `%s' in package `%.256s'\n", |
1117 | cp, HvNAME(stash)) ); | |
46fc3d4c | 1118 | /* don't fill the cache while looking up! */ |
1119 | gv = gv_fetchmeth(stash, SvPVX(cookie), SvCUR(cookie), -1); | |
1120 | cv = 0; | |
44a8e56a | 1121 | if(gv && (cv = GvCV(gv))) { |
44a8e56a | 1122 | if (GvNAMELEN(CvGV(cv)) == 3 && strEQ(GvNAME(CvGV(cv)), "nil") |
1123 | && strEQ(HvNAME(GvSTASH(CvGV(cv))), "overload")) { | |
1124 | /* GvSV contains the name of the method. */ | |
1125 | GV *ngv; | |
1126 | ||
1127 | DEBUG_o( deb("Resolving method `%.256s' for overloaded `%s' in package `%.256s'\n", | |
2d8e6c8d | 1128 | SvPV(GvSV(gv), n_a), cp, HvNAME(stash)) ); |
dc848c6f | 1129 | if (!SvPOK(GvSV(gv)) |
1130 | || !(ngv = gv_fetchmethod_autoload(stash, SvPVX(GvSV(gv)), | |
1131 | FALSE))) | |
1132 | { | |
44a8e56a | 1133 | /* Can be an import stub (created by `can'). */ |
1134 | if (GvCVGEN(gv)) { | |
1135 | croak("Stub found while resolving method `%.256s' overloading `%s' in package `%.256s'", | |
1136 | (SvPOK(GvSV(gv)) ? SvPVX(GvSV(gv)) : "???" ), | |
1137 | cp, HvNAME(stash)); | |
1138 | } else | |
1139 | croak("Cannot resolve method `%.256s' overloading `%s' in package `%.256s'", | |
1140 | (SvPOK(GvSV(gv)) ? SvPVX(GvSV(gv)) : "???" ), | |
1141 | cp, HvNAME(stash)); | |
1142 | } | |
dc848c6f | 1143 | cv = GvCV(gv = ngv); |
44a8e56a | 1144 | } |
1145 | DEBUG_o( deb("Overloading `%s' in package `%.256s' via `%.256s::%.256s' \n", | |
1146 | cp, HvNAME(stash), HvNAME(GvSTASH(CvGV(cv))), | |
1147 | GvNAME(CvGV(cv))) ); | |
1148 | filled = 1; | |
1149 | } | |
a6006777 | 1150 | #endif |
1151 | amt.table[i]=(CV*)SvREFCNT_inc(cv); | |
a0d0e21e | 1152 | } |
a0d0e21e | 1153 | if (filled) { |
a6006777 | 1154 | AMT_AMAGIC_on(&amt); |
1155 | sv_magic((SV*)stash, 0, 'c', (char*)&amt, sizeof(AMT)); | |
a0d0e21e LW |
1156 | return TRUE; |
1157 | } | |
1158 | } | |
a6006777 | 1159 | /* Here we have no table: */ |
774d564b | 1160 | no_table: |
a6006777 | 1161 | AMT_AMAGIC_off(&amt); |
1162 | sv_magic((SV*)stash, 0, 'c', (char*)&amt, sizeof(AMTS)); | |
a0d0e21e LW |
1163 | return FALSE; |
1164 | } | |
1165 | ||
a0d0e21e | 1166 | SV* |
8ac85365 | 1167 | amagic_call(SV *left, SV *right, int method, int flags) |
a0d0e21e | 1168 | { |
11343788 | 1169 | dTHR; |
a0d0e21e LW |
1170 | MAGIC *mg; |
1171 | CV *cv; | |
1172 | CV **cvp=NULL, **ocvp=NULL; | |
1173 | AMT *amtp, *oamtp; | |
1174 | int fl=0, off, off1, lr=0, assign=AMGf_assign & flags, notfound=0; | |
ee239bfe | 1175 | int postpr = 0, force_cpy = 0, assignshift = assign ? 1 : 0; |
a0d0e21e LW |
1176 | HV* stash; |
1177 | if (!(AMGf_noleft & flags) && SvAMAGIC(left) | |
1178 | && (mg = mg_find((SV*)(stash=SvSTASH(SvRV(left))),'c')) | |
a6006777 | 1179 | && (ocvp = cvp = (AMT_AMAGIC((AMT*)mg->mg_ptr) |
1180 | ? (oamtp = amtp = (AMT*)mg->mg_ptr)->table | |
8ac85365 | 1181 | : (CV **) NULL)) |
748a9306 LW |
1182 | && ((cv = cvp[off=method+assignshift]) |
1183 | || (assign && amtp->fallback > AMGfallNEVER && /* fallback to | |
1184 | * usual method */ | |
1185 | (fl = 1, cv = cvp[off=method])))) { | |
a0d0e21e LW |
1186 | lr = -1; /* Call method for left argument */ |
1187 | } else { | |
1188 | if (cvp && amtp->fallback > AMGfallNEVER && flags & AMGf_unary) { | |
1189 | int logic; | |
1190 | ||
1191 | /* look for substituted methods */ | |
ee239bfe | 1192 | /* In all the covered cases we should be called with assign==0. */ |
a0d0e21e LW |
1193 | switch (method) { |
1194 | case inc_amg: | |
ee239bfe IZ |
1195 | force_cpy = 1; |
1196 | if ((cv = cvp[off=add_ass_amg]) | |
1197 | || ((cv = cvp[off = add_amg]) && (force_cpy = 0, postpr = 1))) { | |
3280af22 | 1198 | right = &PL_sv_yes; lr = -1; assign = 1; |
a0d0e21e LW |
1199 | } |
1200 | break; | |
1201 | case dec_amg: | |
ee239bfe IZ |
1202 | force_cpy = 1; |
1203 | if ((cv = cvp[off = subtr_ass_amg]) | |
1204 | || ((cv = cvp[off = subtr_amg]) && (force_cpy = 0, postpr=1))) { | |
3280af22 | 1205 | right = &PL_sv_yes; lr = -1; assign = 1; |
a0d0e21e LW |
1206 | } |
1207 | break; | |
1208 | case bool__amg: | |
1209 | (void)((cv = cvp[off=numer_amg]) || (cv = cvp[off=string_amg])); | |
1210 | break; | |
1211 | case numer_amg: | |
1212 | (void)((cv = cvp[off=string_amg]) || (cv = cvp[off=bool__amg])); | |
1213 | break; | |
1214 | case string_amg: | |
1215 | (void)((cv = cvp[off=numer_amg]) || (cv = cvp[off=bool__amg])); | |
1216 | break; | |
dc437b57 | 1217 | case not_amg: |
1218 | (void)((cv = cvp[off=bool__amg]) | |
1219 | || (cv = cvp[off=numer_amg]) | |
1220 | || (cv = cvp[off=string_amg])); | |
1221 | postpr = 1; | |
1222 | break; | |
748a9306 LW |
1223 | case copy_amg: |
1224 | { | |
76e3520e GS |
1225 | /* |
1226 | * SV* ref causes confusion with the interpreter variable of | |
1227 | * the same name | |
1228 | */ | |
1229 | SV* tmpRef=SvRV(left); | |
1230 | if (!SvROK(tmpRef) && SvTYPE(tmpRef) <= SVt_PVMG) { | |
fc36a67e | 1231 | /* |
1232 | * Just to be extra cautious. Maybe in some | |
1233 | * additional cases sv_setsv is safe, too. | |
1234 | */ | |
76e3520e | 1235 | SV* newref = newSVsv(tmpRef); |
748a9306 | 1236 | SvOBJECT_on(newref); |
76e3520e | 1237 | SvSTASH(newref) = (HV*)SvREFCNT_inc(SvSTASH(tmpRef)); |
748a9306 LW |
1238 | return newref; |
1239 | } | |
1240 | } | |
1241 | break; | |
a0d0e21e | 1242 | case abs_amg: |
748a9306 | 1243 | if ((cvp[off1=lt_amg] || cvp[off1=ncmp_amg]) |
a0d0e21e | 1244 | && ((cv = cvp[off=neg_amg]) || (cv = cvp[off=subtr_amg]))) { |
748a9306 | 1245 | SV* nullsv=sv_2mortal(newSViv(0)); |
a0d0e21e | 1246 | if (off1==lt_amg) { |
748a9306 | 1247 | SV* lessp = amagic_call(left,nullsv, |
a0d0e21e LW |
1248 | lt_amg,AMGf_noright); |
1249 | logic = SvTRUE(lessp); | |
1250 | } else { | |
748a9306 | 1251 | SV* lessp = amagic_call(left,nullsv, |
a0d0e21e LW |
1252 | ncmp_amg,AMGf_noright); |
1253 | logic = (SvNV(lessp) < 0); | |
1254 | } | |
1255 | if (logic) { | |
1256 | if (off==subtr_amg) { | |
1257 | right = left; | |
748a9306 | 1258 | left = nullsv; |
a0d0e21e LW |
1259 | lr = 1; |
1260 | } | |
1261 | } else { | |
1262 | return left; | |
1263 | } | |
1264 | } | |
1265 | break; | |
1266 | case neg_amg: | |
1267 | if (cv = cvp[off=subtr_amg]) { | |
1268 | right = left; | |
1269 | left = sv_2mortal(newSViv(0)); | |
1270 | lr = 1; | |
1271 | } | |
1272 | break; | |
f5284f61 IZ |
1273 | case iter_amg: /* XXXX Eventually should do to_gv. */ |
1274 | case to_sv_amg: | |
1275 | case to_av_amg: | |
1276 | case to_hv_amg: | |
1277 | case to_gv_amg: | |
1278 | case to_cv_amg: | |
1279 | /* FAIL safe */ | |
1280 | return NULL; /* Delegate operation to standard mechanisms. */ | |
1281 | break; | |
a0d0e21e LW |
1282 | default: |
1283 | goto not_found; | |
1284 | } | |
1285 | if (!cv) goto not_found; | |
1286 | } else if (!(AMGf_noright & flags) && SvAMAGIC(right) | |
1287 | && (mg = mg_find((SV*)(stash=SvSTASH(SvRV(right))),'c')) | |
a6006777 | 1288 | && (cvp = (AMT_AMAGIC((AMT*)mg->mg_ptr) |
1289 | ? (amtp = (AMT*)mg->mg_ptr)->table | |
8ac85365 | 1290 | : (CV **) NULL)) |
a0d0e21e LW |
1291 | && (cv = cvp[off=method])) { /* Method for right |
1292 | * argument found */ | |
1293 | lr=1; | |
748a9306 | 1294 | } else if (((ocvp && oamtp->fallback > AMGfallNEVER |
4633a7c4 | 1295 | && (cvp=ocvp) && (lr = -1)) |
a0d0e21e LW |
1296 | || (cvp && amtp->fallback > AMGfallNEVER && (lr=1))) |
1297 | && !(flags & AMGf_unary)) { | |
1298 | /* We look for substitution for | |
1299 | * comparison operations and | |
fc36a67e | 1300 | * concatenation */ |
a0d0e21e LW |
1301 | if (method==concat_amg || method==concat_ass_amg |
1302 | || method==repeat_amg || method==repeat_ass_amg) { | |
1303 | return NULL; /* Delegate operation to string conversion */ | |
1304 | } | |
1305 | off = -1; | |
1306 | switch (method) { | |
1307 | case lt_amg: | |
1308 | case le_amg: | |
1309 | case gt_amg: | |
1310 | case ge_amg: | |
1311 | case eq_amg: | |
1312 | case ne_amg: | |
1313 | postpr = 1; off=ncmp_amg; break; | |
1314 | case slt_amg: | |
1315 | case sle_amg: | |
1316 | case sgt_amg: | |
1317 | case sge_amg: | |
1318 | case seq_amg: | |
1319 | case sne_amg: | |
1320 | postpr = 1; off=scmp_amg; break; | |
1321 | } | |
1322 | if (off != -1) cv = cvp[off]; | |
1323 | if (!cv) { | |
1324 | goto not_found; | |
1325 | } | |
1326 | } else { | |
a6006777 | 1327 | not_found: /* No method found, either report or croak */ |
a0d0e21e LW |
1328 | if (ocvp && (cv=ocvp[nomethod_amg])) { /* Call report method */ |
1329 | notfound = 1; lr = -1; | |
1330 | } else if (cvp && (cv=cvp[nomethod_amg])) { | |
1331 | notfound = 1; lr = 1; | |
1332 | } else { | |
46fc3d4c | 1333 | SV *msg; |
774d564b | 1334 | if (off==-1) off=method; |
46fc3d4c | 1335 | msg = sv_2mortal(newSVpvf( |
1336 | "Operation `%s': no method found,%sargument %s%s%s%s", | |
22c35a8c | 1337 | PL_AMG_names[method + assignshift], |
e7ea3e70 | 1338 | (flags & AMGf_unary ? " " : "\n\tleft "), |
a0d0e21e LW |
1339 | SvAMAGIC(left)? |
1340 | "in overloaded package ": | |
1341 | "has no overloaded magic", | |
1342 | SvAMAGIC(left)? | |
1343 | HvNAME(SvSTASH(SvRV(left))): | |
1344 | "", | |
1345 | SvAMAGIC(right)? | |
e7ea3e70 IZ |
1346 | ",\n\tright argument in overloaded package ": |
1347 | (flags & AMGf_unary | |
1348 | ? "" | |
1349 | : ",\n\tright argument has no overloaded magic"), | |
a0d0e21e LW |
1350 | SvAMAGIC(right)? |
1351 | HvNAME(SvSTASH(SvRV(right))): | |
46fc3d4c | 1352 | "")); |
a0d0e21e | 1353 | if (amtp && amtp->fallback >= AMGfallYES) { |
46fc3d4c | 1354 | DEBUG_o( deb("%s", SvPVX(msg)) ); |
a0d0e21e | 1355 | } else { |
fc36a67e | 1356 | croak("%_", msg); |
a0d0e21e LW |
1357 | } |
1358 | return NULL; | |
1359 | } | |
ee239bfe | 1360 | force_cpy = force_cpy || assign; |
a0d0e21e LW |
1361 | } |
1362 | } | |
1363 | if (!notfound) { | |
774d564b | 1364 | DEBUG_o( deb( |
46fc3d4c | 1365 | "Overloaded operator `%s'%s%s%s:\n\tmethod%s found%s in package %s%s\n", |
22c35a8c | 1366 | PL_AMG_names[off], |
748a9306 LW |
1367 | method+assignshift==off? "" : |
1368 | " (initially `", | |
1369 | method+assignshift==off? "" : | |
22c35a8c | 1370 | PL_AMG_names[method+assignshift], |
748a9306 LW |
1371 | method+assignshift==off? "" : "')", |
1372 | flags & AMGf_unary? "" : | |
1373 | lr==1 ? " for right argument": " for left argument", | |
1374 | flags & AMGf_unary? " for argument" : "", | |
a0d0e21e LW |
1375 | HvNAME(stash), |
1376 | fl? ",\n\tassignment variant used": "") ); | |
ee239bfe | 1377 | } |
748a9306 LW |
1378 | /* Since we use shallow copy during assignment, we need |
1379 | * to dublicate the contents, probably calling user-supplied | |
1380 | * version of copy operator | |
1381 | */ | |
ee239bfe IZ |
1382 | /* We need to copy in following cases: |
1383 | * a) Assignment form was called. | |
1384 | * assignshift==1, assign==T, method + 1 == off | |
1385 | * b) Increment or decrement, called directly. | |
1386 | * assignshift==0, assign==0, method + 0 == off | |
1387 | * c) Increment or decrement, translated to assignment add/subtr. | |
1388 | * assignshift==0, assign==T, | |
1389 | * force_cpy == T | |
1390 | * d) Increment or decrement, translated to nomethod. | |
1391 | * assignshift==0, assign==0, | |
1392 | * force_cpy == T | |
1393 | * e) Assignment form translated to nomethod. | |
1394 | * assignshift==1, assign==T, method + 1 != off | |
1395 | * force_cpy == T | |
1396 | */ | |
1397 | /* off is method, method+assignshift, or a result of opcode substitution. | |
1398 | * In the latter case assignshift==0, so only notfound case is important. | |
1399 | */ | |
1400 | if (( (method + assignshift == off) | |
1401 | && (assign || (method == inc_amg) || (method == dec_amg))) | |
1402 | || force_cpy) | |
1403 | RvDEEPCP(left); | |
a0d0e21e LW |
1404 | { |
1405 | dSP; | |
1406 | BINOP myop; | |
1407 | SV* res; | |
54310121 | 1408 | bool oldcatch = CATCH_GET; |
a0d0e21e | 1409 | |
54310121 | 1410 | CATCH_SET(TRUE); |
a0d0e21e LW |
1411 | Zero(&myop, 1, BINOP); |
1412 | myop.op_last = (OP *) &myop; | |
1413 | myop.op_next = Nullop; | |
54310121 | 1414 | myop.op_flags = OPf_WANT_SCALAR | OPf_STACKED; |
a0d0e21e | 1415 | |
e788e7d3 | 1416 | PUSHSTACKi(PERLSI_OVERLOAD); |
a0d0e21e | 1417 | ENTER; |
462e5cf6 | 1418 | SAVEOP(); |
533c011a | 1419 | PL_op = (OP *) &myop; |
3280af22 | 1420 | if (PERLDB_SUB && PL_curstash != PL_debstash) |
533c011a | 1421 | PL_op->op_private |= OPpENTERSUB_DB; |
a0d0e21e | 1422 | PUTBACK; |
11343788 | 1423 | pp_pushmark(ARGS); |
a0d0e21e | 1424 | |
924508f0 | 1425 | EXTEND(SP, notfound + 5); |
a0d0e21e LW |
1426 | PUSHs(lr>0? right: left); |
1427 | PUSHs(lr>0? left: right); | |
3280af22 | 1428 | PUSHs( lr > 0 ? &PL_sv_yes : ( assign ? &PL_sv_undef : &PL_sv_no )); |
a0d0e21e | 1429 | if (notfound) { |
22c35a8c | 1430 | PUSHs( sv_2mortal(newSVpv((char *)PL_AMG_names[method + assignshift],0))); |
a0d0e21e LW |
1431 | } |
1432 | PUSHs((SV*)cv); | |
1433 | PUTBACK; | |
1434 | ||
533c011a | 1435 | if (PL_op = pp_entersub(ARGS)) |
76e3520e | 1436 | CALLRUNOPS(); |
a0d0e21e LW |
1437 | LEAVE; |
1438 | SPAGAIN; | |
1439 | ||
1440 | res=POPs; | |
ebafeae7 | 1441 | PUTBACK; |
d3acc0f7 | 1442 | POPSTACK; |
54310121 | 1443 | CATCH_SET(oldcatch); |
a0d0e21e | 1444 | |
a0d0e21e LW |
1445 | if (postpr) { |
1446 | int ans; | |
1447 | switch (method) { | |
1448 | case le_amg: | |
1449 | case sle_amg: | |
1450 | ans=SvIV(res)<=0; break; | |
1451 | case lt_amg: | |
1452 | case slt_amg: | |
1453 | ans=SvIV(res)<0; break; | |
1454 | case ge_amg: | |
1455 | case sge_amg: | |
1456 | ans=SvIV(res)>=0; break; | |
1457 | case gt_amg: | |
1458 | case sgt_amg: | |
1459 | ans=SvIV(res)>0; break; | |
1460 | case eq_amg: | |
1461 | case seq_amg: | |
1462 | ans=SvIV(res)==0; break; | |
1463 | case ne_amg: | |
1464 | case sne_amg: | |
1465 | ans=SvIV(res)!=0; break; | |
1466 | case inc_amg: | |
1467 | case dec_amg: | |
bbce6d69 | 1468 | SvSetSV(left,res); return left; |
dc437b57 | 1469 | case not_amg: |
44a8e56a | 1470 | ans=!SvOK(res); break; |
a0d0e21e | 1471 | } |
54310121 | 1472 | return boolSV(ans); |
748a9306 LW |
1473 | } else if (method==copy_amg) { |
1474 | if (!SvROK(res)) { | |
a6006777 | 1475 | croak("Copy method did not return a reference"); |
748a9306 LW |
1476 | } |
1477 | return SvREFCNT_inc(SvRV(res)); | |
a0d0e21e LW |
1478 | } else { |
1479 | return res; | |
1480 | } | |
1481 | } | |
1482 | } |