Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* gv.c |
79072805 | 2 | * |
a0d0e21e | 3 | * Copyright (c) 1991-1994, 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 | ||
463ee0b2 | 22 | extern char rcsid[]; |
93a17b20 | 23 | |
79072805 LW |
24 | GV * |
25 | gv_AVadd(gv) | |
26 | register GV *gv; | |
27 | { | |
a0d0e21e LW |
28 | if (!gv || SvTYPE((SV*)gv) != SVt_PVGV) |
29 | croak("Bad symbol for array"); | |
79072805 LW |
30 | if (!GvAV(gv)) |
31 | GvAV(gv) = newAV(); | |
32 | return gv; | |
33 | } | |
34 | ||
35 | GV * | |
36 | gv_HVadd(gv) | |
37 | register GV *gv; | |
38 | { | |
a0d0e21e LW |
39 | if (!gv || SvTYPE((SV*)gv) != SVt_PVGV) |
40 | croak("Bad symbol for hash"); | |
79072805 | 41 | if (!GvHV(gv)) |
463ee0b2 | 42 | GvHV(gv) = newHV(); |
79072805 LW |
43 | return gv; |
44 | } | |
45 | ||
46 | GV * | |
a0d0e21e LW |
47 | gv_IOadd(gv) |
48 | register GV *gv; | |
49 | { | |
50 | if (!gv || SvTYPE((SV*)gv) != SVt_PVGV) | |
51 | croak("Bad symbol for filehandle"); | |
52 | if (!GvIOp(gv)) | |
53 | GvIOp(gv) = newIO(); | |
54 | return gv; | |
55 | } | |
56 | ||
57 | GV * | |
79072805 LW |
58 | gv_fetchfile(name) |
59 | char *name; | |
60 | { | |
61 | char tmpbuf[1200]; | |
62 | GV *gv; | |
63 | ||
8990e307 | 64 | sprintf(tmpbuf,"::_<%s", name); |
85e6fe83 | 65 | gv = gv_fetchpv(tmpbuf, TRUE, SVt_PVGV); |
79072805 | 66 | sv_setpv(GvSV(gv), name); |
a0d0e21e | 67 | if (*name == '/' && (instr(name,"/lib/") || instr(name,".pm"))) |
8990e307 | 68 | SvMULTI_on(gv); |
79072805 | 69 | if (perldb) |
93a17b20 | 70 | hv_magic(GvHVn(gv_AVadd(gv)), gv, 'L'); |
79072805 LW |
71 | return gv; |
72 | } | |
73 | ||
463ee0b2 LW |
74 | void |
75 | gv_init(gv, stash, name, len, multi) | |
76 | GV *gv; | |
77 | HV *stash; | |
78 | char *name; | |
79 | STRLEN len; | |
80 | int multi; | |
81 | { | |
82 | register GP *gp; | |
83 | ||
84 | sv_upgrade(gv, SVt_PVGV); | |
85 | if (SvLEN(gv)) | |
86 | Safefree(SvPVX(gv)); | |
87 | Newz(602,gp, 1, GP); | |
8990e307 | 88 | GvGP(gv) = gp_ref(gp); |
463ee0b2 LW |
89 | GvREFCNT(gv) = 1; |
90 | GvSV(gv) = NEWSV(72,0); | |
91 | GvLINE(gv) = curcop->cop_line; | |
8990e307 | 92 | GvFILEGV(gv) = curcop->cop_filegv; |
463ee0b2 LW |
93 | GvEGV(gv) = gv; |
94 | sv_magic((SV*)gv, (SV*)gv, '*', name, len); | |
95 | GvSTASH(gv) = stash; | |
a0d0e21e | 96 | GvNAME(gv) = savepvn(name, len); |
463ee0b2 LW |
97 | GvNAMELEN(gv) = len; |
98 | if (multi) | |
99 | SvMULTI_on(gv); | |
100 | } | |
101 | ||
a0d0e21e LW |
102 | static void |
103 | gv_init_sv(gv, sv_type) | |
104 | GV* gv; | |
105 | I32 sv_type; | |
106 | { | |
107 | switch (sv_type) { | |
108 | case SVt_PVIO: | |
109 | (void)GvIOn(gv); | |
110 | break; | |
111 | case SVt_PVAV: | |
112 | (void)GvAVn(gv); | |
113 | break; | |
114 | case SVt_PVHV: | |
115 | (void)GvHVn(gv); | |
116 | break; | |
117 | } | |
118 | } | |
119 | ||
79072805 | 120 | GV * |
a0d0e21e | 121 | gv_fetchmeth(stash, name, len, level) |
79072805 LW |
122 | HV* stash; |
123 | char* name; | |
463ee0b2 | 124 | STRLEN len; |
a0d0e21e | 125 | I32 level; |
79072805 LW |
126 | { |
127 | AV* av; | |
463ee0b2 | 128 | GV* topgv; |
79072805 | 129 | GV* gv; |
463ee0b2 | 130 | GV** gvp; |
a0d0e21e | 131 | HV* lastchance; |
748a9306 | 132 | CV* cv; |
a0d0e21e LW |
133 | |
134 | if (!stash) | |
135 | return 0; | |
136 | if (level > 100) | |
137 | croak("Recursive inheritance detected"); | |
463ee0b2 LW |
138 | |
139 | gvp = (GV**)hv_fetch(stash, name, len, TRUE); | |
140 | ||
141 | DEBUG_o( deb("Looking for method %s in package %s\n",name,HvNAME(stash)) ); | |
142 | topgv = *gvp; | |
143 | if (SvTYPE(topgv) != SVt_PVGV) | |
144 | gv_init(topgv, stash, name, len, TRUE); | |
145 | ||
748a9306 LW |
146 | if (cv=GvCV(topgv)) { |
147 | if (GvCVGEN(topgv) >= sub_generation) | |
148 | return topgv; /* valid cached inheritance */ | |
149 | if (!GvCVGEN(topgv)) { /* not an inheritance cache */ | |
150 | if (CvROOT(cv) || CvXSUB(cv)) | |
151 | return topgv; /* real definition */ | |
152 | /* a simple undef -- save the slot for possible re-use */ | |
153 | } | |
154 | else { | |
155 | /* stale cached entry, just junk it */ | |
156 | GvCV(topgv) = cv = 0; | |
157 | GvCVGEN(topgv) = 0; | |
158 | } | |
463ee0b2 | 159 | } |
748a9306 | 160 | /* if cv is still set, we have to free it if we find something to cache */ |
79072805 LW |
161 | |
162 | gvp = (GV**)hv_fetch(stash,"ISA",3,FALSE); | |
163 | if (gvp && (gv = *gvp) != (GV*)&sv_undef && (av = GvAV(gv))) { | |
164 | SV** svp = AvARRAY(av); | |
165 | I32 items = AvFILL(av) + 1; | |
166 | while (items--) { | |
79072805 | 167 | SV* sv = *svp++; |
a0d0e21e | 168 | HV* basestash = gv_stashsv(sv, FALSE); |
9bbf4081 | 169 | if (!basestash) { |
79072805 | 170 | if (dowarn) |
a0d0e21e | 171 | warn("Can't locate package %s for @%s::ISA", |
463ee0b2 | 172 | SvPVX(sv), HvNAME(stash)); |
79072805 LW |
173 | continue; |
174 | } | |
a0d0e21e | 175 | gv = gv_fetchmeth(basestash, name, len, level + 1); |
463ee0b2 | 176 | if (gv) { |
748a9306 LW |
177 | if (cv) { /* junk old undef */ |
178 | assert(SvREFCNT(topgv) > 1); | |
179 | SvREFCNT_dec(topgv); | |
180 | SvREFCNT_dec(cv); | |
181 | } | |
463ee0b2 LW |
182 | GvCV(topgv) = GvCV(gv); /* cache the CV */ |
183 | GvCVGEN(topgv) = sub_generation; /* valid for now */ | |
79072805 | 184 | return gv; |
463ee0b2 | 185 | } |
79072805 LW |
186 | } |
187 | } | |
a0d0e21e LW |
188 | |
189 | if (!level) { | |
190 | if (lastchance = gv_stashpv("UNIVERSAL", FALSE)) { | |
191 | if (gv = gv_fetchmeth(lastchance, name, len, level + 1)) { | |
748a9306 LW |
192 | if (cv) { /* junk old undef */ |
193 | assert(SvREFCNT(topgv) > 1); | |
194 | SvREFCNT_dec(topgv); | |
195 | SvREFCNT_dec(cv); | |
196 | } | |
a0d0e21e LW |
197 | GvCV(topgv) = GvCV(gv); /* cache the CV */ |
198 | GvCVGEN(topgv) = sub_generation; /* valid for now */ | |
199 | return gv; | |
200 | } | |
201 | } | |
202 | } | |
203 | ||
79072805 LW |
204 | return 0; |
205 | } | |
206 | ||
207 | GV * | |
463ee0b2 LW |
208 | gv_fetchmethod(stash, name) |
209 | HV* stash; | |
210 | char* name; | |
211 | { | |
212 | register char *nend; | |
a0d0e21e LW |
213 | char *nsplit = 0; |
214 | GV* gv; | |
463ee0b2 LW |
215 | |
216 | for (nend = name; *nend; nend++) { | |
a0d0e21e LW |
217 | if (*nend == ':' || *nend == '\'') |
218 | nsplit = nend; | |
219 | } | |
220 | if (nsplit) { | |
221 | char ch; | |
222 | char *origname = name; | |
223 | name = nsplit + 1; | |
224 | ch = *nsplit; | |
225 | if (*nsplit == ':') | |
226 | --nsplit; | |
227 | *nsplit = '\0'; | |
228 | stash = gv_stashpv(origname,TRUE); | |
229 | *nsplit = ch; | |
230 | } | |
231 | gv = gv_fetchmeth(stash, name, nend - name, 0); | |
232 | if (!gv) { | |
233 | CV* cv; | |
234 | ||
235 | if (strEQ(name,"import") || strEQ(name,"unimport")) | |
236 | gv = &sv_yes; | |
237 | else if (strNE(name, "AUTOLOAD")) { | |
238 | gv = gv_fetchmeth(stash, "AUTOLOAD", 8, 0); | |
239 | if (gv && (cv = GvCV(gv))) { /* One more chance... */ | |
748a9306 | 240 | SV *tmpstr = sv_2mortal(newSVpv(HvNAME(stash),0)); |
a0d0e21e LW |
241 | sv_catpvn(tmpstr,"::", 2); |
242 | sv_catpvn(tmpstr, name, nend - name); | |
243 | sv_setsv(GvSV(CvGV(cv)), tmpstr); | |
244 | } | |
463ee0b2 LW |
245 | } |
246 | } | |
a0d0e21e LW |
247 | return gv; |
248 | } | |
249 | ||
250 | HV* | |
251 | gv_stashpv(name,create) | |
252 | char *name; | |
253 | I32 create; | |
254 | { | |
255 | char tmpbuf[1234]; | |
256 | HV *stash; | |
257 | GV *tmpgv; | |
258 | sprintf(tmpbuf,"%.*s::",1200,name); | |
259 | tmpgv = gv_fetchpv(tmpbuf,create, SVt_PVHV); | |
260 | if (!tmpgv) | |
261 | return 0; | |
262 | if (!GvHV(tmpgv)) | |
263 | GvHV(tmpgv) = newHV(); | |
264 | stash = GvHV(tmpgv); | |
265 | if (!HvNAME(stash)) | |
266 | HvNAME(stash) = savepv(name); | |
267 | return stash; | |
463ee0b2 LW |
268 | } |
269 | ||
a0d0e21e LW |
270 | HV* |
271 | gv_stashsv(sv,create) | |
272 | SV *sv; | |
273 | I32 create; | |
274 | { | |
275 | return gv_stashpv(SvPV(sv,na), create); | |
276 | } | |
277 | ||
278 | ||
463ee0b2 | 279 | GV * |
a0d0e21e | 280 | gv_fetchpv(nambeg,add,sv_type) |
463ee0b2 | 281 | char *nambeg; |
79072805 | 282 | I32 add; |
a0d0e21e | 283 | I32 sv_type; |
79072805 | 284 | { |
463ee0b2 LW |
285 | register char *name = nambeg; |
286 | register GV *gv = 0; | |
79072805 | 287 | GV**gvp; |
79072805 LW |
288 | I32 len; |
289 | register char *namend; | |
463ee0b2 | 290 | HV *stash = 0; |
79072805 | 291 | bool global = FALSE; |
85e6fe83 | 292 | char *tmpbuf; |
79072805 | 293 | |
79072805 | 294 | for (namend = name; *namend; namend++) { |
463ee0b2 LW |
295 | if ((*namend == '\'' && namend[1]) || |
296 | (*namend == ':' && namend[1] == ':')) | |
297 | { | |
463ee0b2 LW |
298 | if (!stash) |
299 | stash = defstash; | |
a0d0e21e LW |
300 | if (!SvREFCNT(stash)) /* symbol table under destruction */ |
301 | return Nullgv; | |
463ee0b2 | 302 | |
85e6fe83 LW |
303 | len = namend - name; |
304 | if (len > 0) { | |
a0d0e21e LW |
305 | New(601, tmpbuf, len+3, char); |
306 | Copy(name, tmpbuf, len, char); | |
307 | tmpbuf[len++] = ':'; | |
308 | tmpbuf[len++] = ':'; | |
309 | tmpbuf[len] = '\0'; | |
463ee0b2 | 310 | gvp = (GV**)hv_fetch(stash,tmpbuf,len,add); |
85e6fe83 | 311 | Safefree(tmpbuf); |
463ee0b2 LW |
312 | if (!gvp || *gvp == (GV*)&sv_undef) |
313 | return Nullgv; | |
314 | gv = *gvp; | |
85e6fe83 | 315 | |
463ee0b2 LW |
316 | if (SvTYPE(gv) == SVt_PVGV) |
317 | SvMULTI_on(gv); | |
a0d0e21e LW |
318 | else if (!add) |
319 | return Nullgv; | |
463ee0b2 LW |
320 | else |
321 | gv_init(gv, stash, nambeg, namend - nambeg, (add & 2)); | |
85e6fe83 | 322 | |
463ee0b2 LW |
323 | if (!(stash = GvHV(gv))) |
324 | stash = GvHV(gv) = newHV(); | |
85e6fe83 | 325 | |
463ee0b2 | 326 | if (!HvNAME(stash)) |
a0d0e21e | 327 | HvNAME(stash) = savepvn(nambeg, namend - nambeg); |
463ee0b2 LW |
328 | } |
329 | ||
330 | if (*namend == ':') | |
331 | namend++; | |
332 | namend++; | |
333 | name = namend; | |
334 | if (!*name) | |
a0d0e21e | 335 | return gv ? gv : *hv_fetch(defstash, "main::", 6, TRUE); |
79072805 | 336 | } |
79072805 | 337 | } |
a0d0e21e LW |
338 | len = namend - name; |
339 | if (!len) | |
340 | len = 1; | |
463ee0b2 LW |
341 | |
342 | /* No stash in name, so see how we can default */ | |
343 | ||
344 | if (!stash) { | |
345 | if (isIDFIRST(*name)) { | |
346 | if (isUPPER(*name)) { | |
347 | if (*name > 'I') { | |
348 | if (*name == 'S' && ( | |
349 | strEQ(name, "SIG") || | |
350 | strEQ(name, "STDIN") || | |
351 | strEQ(name, "STDOUT") || | |
352 | strEQ(name, "STDERR") )) | |
353 | global = TRUE; | |
354 | } | |
355 | else if (*name > 'E') { | |
356 | if (*name == 'I' && strEQ(name, "INC")) | |
357 | global = TRUE; | |
358 | } | |
359 | else if (*name > 'A') { | |
360 | if (*name == 'E' && strEQ(name, "ENV")) | |
361 | global = TRUE; | |
362 | } | |
363 | else if (*name == 'A' && ( | |
364 | strEQ(name, "ARGV") || | |
365 | strEQ(name, "ARGVOUT") )) | |
366 | global = TRUE; | |
367 | } | |
368 | else if (*name == '_' && !name[1]) | |
369 | global = TRUE; | |
370 | if (global) | |
371 | stash = defstash; | |
85e6fe83 | 372 | else if ((COP*)curcop == &compiling) { |
a0d0e21e | 373 | stash = curstash; |
748a9306 LW |
374 | if (add && (hints & HINT_STRICT_VARS) && |
375 | sv_type != SVt_PVCV && | |
376 | sv_type != SVt_PVGV && | |
377 | sv_type != SVt_PVIO) | |
378 | { | |
a0d0e21e LW |
379 | stash = 0; |
380 | } | |
85e6fe83 | 381 | } |
463ee0b2 LW |
382 | else |
383 | stash = curcop->cop_stash; | |
384 | } | |
385 | else | |
386 | stash = defstash; | |
387 | } | |
388 | ||
389 | /* By this point we should have a stash and a name */ | |
390 | ||
a0d0e21e LW |
391 | if (!stash) { |
392 | if (add) { | |
393 | warn("Global symbol \"%s\" requires explicit package name", name); | |
394 | ++error_count; | |
395 | stash = curstash ? curstash : defstash; /* avoid core dumps */ | |
396 | } | |
397 | else | |
398 | return Nullgv; | |
399 | } | |
400 | ||
401 | if (!SvREFCNT(stash)) /* symbol table under destruction */ | |
402 | return Nullgv; | |
403 | ||
79072805 LW |
404 | gvp = (GV**)hv_fetch(stash,name,len,add); |
405 | if (!gvp || *gvp == (GV*)&sv_undef) | |
406 | return Nullgv; | |
407 | gv = *gvp; | |
408 | if (SvTYPE(gv) == SVt_PVGV) { | |
a0d0e21e LW |
409 | if (add) { |
410 | SvMULTI_on(gv); | |
411 | gv_init_sv(gv, sv_type); | |
412 | } | |
79072805 LW |
413 | return gv; |
414 | } | |
93a17b20 LW |
415 | |
416 | /* Adding a new symbol */ | |
417 | ||
a0d0e21e LW |
418 | if (add & 4) |
419 | warn("Had to create %s unexpectedly", nambeg); | |
463ee0b2 | 420 | gv_init(gv, stash, name, len, add & 2); |
a0d0e21e | 421 | gv_init_sv(gv, sv_type); |
93a17b20 LW |
422 | |
423 | /* set up magic where warranted */ | |
424 | switch (*name) { | |
a0d0e21e LW |
425 | case 'A': |
426 | if (strEQ(name, "ARGV")) { | |
427 | IoFLAGS(GvIOn(gv)) |= IOf_ARGV|IOf_START; | |
428 | } | |
429 | break; | |
430 | ||
ed6116ce LW |
431 | case 'a': |
432 | case 'b': | |
433 | if (len == 1) | |
434 | SvMULTI_on(gv); | |
435 | break; | |
a0d0e21e LW |
436 | case 'E': |
437 | if (strnEQ(name, "EXPORT", 6)) | |
438 | SvMULTI_on(gv); | |
439 | break; | |
463ee0b2 LW |
440 | case 'I': |
441 | if (strEQ(name, "ISA")) { | |
442 | AV* av = GvAVn(gv); | |
8990e307 | 443 | SvMULTI_on(gv); |
a0d0e21e LW |
444 | sv_magic((SV*)av, (SV*)gv, 'I', Nullch, 0); |
445 | if (add & 2 && strEQ(nambeg,"AnyDBM_File::ISA") && AvFILL(av) == -1) | |
85e6fe83 | 446 | { |
a0d0e21e LW |
447 | char *pname; |
448 | av_push(av, newSVpv(pname = "NDBM_File",0)); | |
449 | gv_stashpv(pname, TRUE); | |
450 | av_push(av, newSVpv(pname = "DB_File",0)); | |
451 | gv_stashpv(pname, TRUE); | |
452 | av_push(av, newSVpv(pname = "GDBM_File",0)); | |
453 | gv_stashpv(pname, TRUE); | |
454 | av_push(av, newSVpv(pname = "SDBM_File",0)); | |
455 | gv_stashpv(pname, TRUE); | |
456 | av_push(av, newSVpv(pname = "ODBM_File",0)); | |
457 | gv_stashpv(pname, TRUE); | |
85e6fe83 | 458 | } |
463ee0b2 LW |
459 | } |
460 | break; | |
a0d0e21e LW |
461 | #ifdef OVERLOAD |
462 | case 'O': | |
463 | if (strEQ(name, "OVERLOAD")) { | |
464 | HV* hv = GvHVn(gv); | |
465 | SvMULTI_on(gv); | |
466 | sv_magic((SV*)hv, (SV*)gv, 'A', 0, 0); | |
467 | } | |
468 | break; | |
469 | #endif /* OVERLOAD */ | |
93a17b20 LW |
470 | case 'S': |
471 | if (strEQ(name, "SIG")) { | |
472 | HV *hv; | |
473 | siggv = gv; | |
474 | SvMULTI_on(siggv); | |
475 | hv = GvHVn(siggv); | |
476 | hv_magic(hv, siggv, 'S'); | |
477 | ||
478 | /* initialize signal stack */ | |
479 | signalstack = newAV(); | |
93a17b20 | 480 | AvREAL_off(signalstack); |
a0d0e21e LW |
481 | av_extend(signalstack, 30); |
482 | av_fill(signalstack, 0); | |
93a17b20 LW |
483 | } |
484 | break; | |
485 | ||
486 | case '&': | |
463ee0b2 LW |
487 | if (len > 1) |
488 | break; | |
93a17b20 LW |
489 | ampergv = gv; |
490 | sawampersand = TRUE; | |
a0d0e21e | 491 | goto ro_magicalize; |
93a17b20 LW |
492 | |
493 | case '`': | |
463ee0b2 LW |
494 | if (len > 1) |
495 | break; | |
93a17b20 LW |
496 | leftgv = gv; |
497 | sawampersand = TRUE; | |
a0d0e21e | 498 | goto ro_magicalize; |
93a17b20 LW |
499 | |
500 | case '\'': | |
463ee0b2 LW |
501 | if (len > 1) |
502 | break; | |
93a17b20 LW |
503 | rightgv = gv; |
504 | sawampersand = TRUE; | |
a0d0e21e | 505 | goto ro_magicalize; |
93a17b20 LW |
506 | |
507 | case ':': | |
463ee0b2 LW |
508 | if (len > 1) |
509 | break; | |
93a17b20 LW |
510 | sv_setpv(GvSV(gv),chopset); |
511 | goto magicalize; | |
512 | ||
93a17b20 | 513 | case '#': |
a0d0e21e LW |
514 | case '*': |
515 | if (dowarn && len == 1 && sv_type == SVt_PV) | |
516 | warn("Use of $%s is deprecated", name); | |
517 | /* FALL THROUGH */ | |
518 | case '[': | |
519 | case '!': | |
93a17b20 LW |
520 | case '?': |
521 | case '^': | |
522 | case '~': | |
523 | case '=': | |
524 | case '-': | |
525 | case '%': | |
526 | case '.': | |
93a17b20 LW |
527 | case '(': |
528 | case ')': | |
529 | case '<': | |
530 | case '>': | |
531 | case ',': | |
532 | case '\\': | |
533 | case '/': | |
93a17b20 | 534 | case '|': |
748a9306 | 535 | case '\001': |
93a17b20 | 536 | case '\004': |
748a9306 | 537 | case '\006': |
a0d0e21e | 538 | case '\010': |
93a17b20 LW |
539 | case '\t': |
540 | case '\020': | |
541 | case '\024': | |
542 | case '\027': | |
463ee0b2 LW |
543 | if (len > 1) |
544 | break; | |
545 | goto magicalize; | |
546 | ||
a0d0e21e | 547 | case '+': |
463ee0b2 LW |
548 | case '1': |
549 | case '2': | |
550 | case '3': | |
551 | case '4': | |
552 | case '5': | |
553 | case '6': | |
554 | case '7': | |
555 | case '8': | |
556 | case '9': | |
a0d0e21e LW |
557 | ro_magicalize: |
558 | SvREADONLY_on(GvSV(gv)); | |
93a17b20 | 559 | magicalize: |
463ee0b2 | 560 | sv_magic(GvSV(gv), (SV*)gv, 0, name, len); |
93a17b20 LW |
561 | break; |
562 | ||
563 | case '\014': | |
463ee0b2 LW |
564 | if (len > 1) |
565 | break; | |
93a17b20 LW |
566 | sv_setpv(GvSV(gv),"\f"); |
567 | formfeed = GvSV(gv); | |
568 | break; | |
569 | case ';': | |
463ee0b2 LW |
570 | if (len > 1) |
571 | break; | |
93a17b20 LW |
572 | sv_setpv(GvSV(gv),"\034"); |
573 | break; | |
463ee0b2 LW |
574 | case ']': |
575 | if (len == 1) { | |
93a17b20 LW |
576 | SV *sv; |
577 | sv = GvSV(gv); | |
578 | sv_upgrade(sv, SVt_PVNV); | |
a0d0e21e | 579 | sv_setpv(sv, patchlevel); |
93a17b20 LW |
580 | } |
581 | break; | |
79072805 | 582 | } |
93a17b20 | 583 | return gv; |
79072805 LW |
584 | } |
585 | ||
586 | void | |
587 | gv_fullname(sv,gv) | |
588 | SV *sv; | |
589 | GV *gv; | |
590 | { | |
591 | HV *hv = GvSTASH(gv); | |
592 | ||
593 | if (!hv) | |
594 | return; | |
595 | sv_setpv(sv, sv == (SV*)gv ? "*" : ""); | |
596 | sv_catpv(sv,HvNAME(hv)); | |
463ee0b2 | 597 | sv_catpvn(sv,"::", 2); |
79072805 LW |
598 | sv_catpvn(sv,GvNAME(gv),GvNAMELEN(gv)); |
599 | } | |
600 | ||
601 | void | |
602 | gv_efullname(sv,gv) | |
603 | SV *sv; | |
604 | GV *gv; | |
605 | { | |
606 | GV* egv = GvEGV(gv); | |
748a9306 LW |
607 | HV *hv; |
608 | ||
609 | if (!egv) | |
610 | egv = gv; | |
611 | hv = GvSTASH(egv); | |
79072805 LW |
612 | if (!hv) |
613 | return; | |
748a9306 | 614 | |
79072805 LW |
615 | sv_setpv(sv, sv == (SV*)gv ? "*" : ""); |
616 | sv_catpv(sv,HvNAME(hv)); | |
463ee0b2 | 617 | sv_catpvn(sv,"::", 2); |
79072805 LW |
618 | sv_catpvn(sv,GvNAME(egv),GvNAMELEN(egv)); |
619 | } | |
620 | ||
621 | IO * | |
622 | newIO() | |
623 | { | |
624 | IO *io; | |
8990e307 LW |
625 | GV *iogv; |
626 | ||
627 | io = (IO*)NEWSV(0,0); | |
a0d0e21e | 628 | sv_upgrade((SV *)io,SVt_PVIO); |
8990e307 LW |
629 | SvREFCNT(io) = 1; |
630 | SvOBJECT_on(io); | |
85e6fe83 | 631 | iogv = gv_fetchpv("FileHandle::", TRUE, SVt_PVIO); |
8990e307 | 632 | SvSTASH(io) = (HV*)SvREFCNT_inc(GvHV(iogv)); |
79072805 LW |
633 | return io; |
634 | } | |
635 | ||
636 | void | |
463ee0b2 LW |
637 | gv_check(stash) |
638 | HV* stash; | |
79072805 LW |
639 | { |
640 | register HE *entry; | |
641 | register I32 i; | |
642 | register GV *gv; | |
463ee0b2 | 643 | HV *hv; |
a0d0e21e | 644 | GV *filegv; |
463ee0b2 | 645 | |
8990e307 LW |
646 | if (!HvARRAY(stash)) |
647 | return; | |
a0d0e21e | 648 | for (i = 0; i <= (I32) HvMAX(stash); i++) { |
463ee0b2 | 649 | for (entry = HvARRAY(stash)[i]; entry; entry = entry->hent_next) { |
a0d0e21e LW |
650 | if (entry->hent_key[entry->hent_klen-1] == ':' && |
651 | (gv = (GV*)entry->hent_val) && (hv = GvHV(gv)) && HvNAME(hv)) | |
652 | { | |
653 | if (hv != defstash) | |
654 | gv_check(hv); /* nested package */ | |
655 | } | |
656 | else if (isALPHA(*entry->hent_key)) { | |
463ee0b2 LW |
657 | gv = (GV*)entry->hent_val; |
658 | if (SvMULTI(gv)) | |
659 | continue; | |
660 | curcop->cop_line = GvLINE(gv); | |
a0d0e21e LW |
661 | filegv = GvFILEGV(gv); |
662 | curcop->cop_filegv = filegv; | |
663 | if (filegv && SvMULTI(filegv)) /* Filename began with slash */ | |
8990e307 | 664 | continue; |
a0d0e21e LW |
665 | warn("Identifier \"%s::%s\" used only once: possible typo", |
666 | HvNAME(stash), GvNAME(gv)); | |
463ee0b2 | 667 | } |
79072805 LW |
668 | } |
669 | } | |
670 | } | |
671 | ||
672 | GV * | |
a0d0e21e LW |
673 | newGVgen(pack) |
674 | char *pack; | |
79072805 | 675 | { |
a0d0e21e | 676 | (void)sprintf(tokenbuf,"%s::_GEN_%ld",pack,(long)gensym++); |
85e6fe83 | 677 | return gv_fetchpv(tokenbuf,TRUE, SVt_PVGV); |
79072805 LW |
678 | } |
679 | ||
680 | /* hopefully this is only called on local symbol table entries */ | |
681 | ||
682 | GP* | |
683 | gp_ref(gp) | |
684 | GP* gp; | |
685 | { | |
686 | gp->gp_refcnt++; | |
687 | return gp; | |
688 | ||
689 | } | |
690 | ||
691 | void | |
692 | gp_free(gv) | |
693 | GV* gv; | |
694 | { | |
695 | IO *io; | |
696 | CV *cv; | |
697 | GP* gp; | |
698 | ||
699 | if (!gv || !(gp = GvGP(gv))) | |
700 | return; | |
701 | if (gp->gp_refcnt == 0) { | |
702 | warn("Attempt to free unreferenced glob pointers"); | |
703 | return; | |
704 | } | |
748a9306 LW |
705 | if (--gp->gp_refcnt > 0) { |
706 | if (gp->gp_egv == gv) | |
707 | gp->gp_egv = 0; | |
79072805 | 708 | return; |
748a9306 | 709 | } |
79072805 | 710 | |
8990e307 LW |
711 | SvREFCNT_dec(gp->gp_sv); |
712 | SvREFCNT_dec(gp->gp_av); | |
713 | SvREFCNT_dec(gp->gp_hv); | |
714 | if ((io = gp->gp_io) && SvTYPE(io) != SVTYPEMASK) { | |
79072805 | 715 | do_close(gv,FALSE); |
8990e307 | 716 | SvREFCNT_dec(io); |
79072805 | 717 | } |
8990e307 LW |
718 | if ((cv = gp->gp_cv) && !GvCVGEN(gv)) |
719 | SvREFCNT_dec(cv); | |
748a9306 LW |
720 | SvREFCNT_dec(gp->gp_form); |
721 | ||
79072805 LW |
722 | Safefree(gp); |
723 | GvGP(gv) = 0; | |
724 | } | |
725 | ||
726 | #if defined(CRIPPLED_CC) && (defined(iAPX286) || defined(M_I286) || defined(I80286)) | |
727 | #define MICROPORT | |
728 | #endif | |
729 | ||
730 | #ifdef MICROPORT /* Microport 2.4 hack */ | |
731 | AV *GvAVn(gv) | |
732 | register GV *gv; | |
733 | { | |
734 | if (GvGP(gv)->gp_av) | |
735 | return GvGP(gv)->gp_av; | |
736 | else | |
737 | return GvGP(gv_AVadd(gv))->gp_av; | |
738 | } | |
739 | ||
740 | HV *GvHVn(gv) | |
741 | register GV *gv; | |
742 | { | |
743 | if (GvGP(gv)->gp_hv) | |
744 | return GvGP(gv)->gp_hv; | |
745 | else | |
746 | return GvGP(gv_HVadd(gv))->gp_hv; | |
747 | } | |
748 | #endif /* Microport 2.4 hack */ | |
a0d0e21e LW |
749 | |
750 | #ifdef OVERLOAD | |
751 | /* Updates and caches the CV's */ | |
752 | ||
753 | bool | |
754 | Gv_AMupdate(stash) | |
755 | HV* stash; | |
756 | { | |
757 | GV** gvp; | |
758 | HV* hv; | |
759 | GV* gv; | |
760 | CV* cv; | |
761 | MAGIC* mg=mg_find((SV*)stash,'c'); | |
748a9306 | 762 | AMT *amtp=mg ? (AMT*)mg->mg_ptr: NULL; |
a0d0e21e LW |
763 | |
764 | if (mg && (amtp=((AMT*)(mg->mg_ptr)))->was_ok_am == amagic_generation && | |
765 | amtp->was_ok_sub == sub_generation) | |
766 | return HV_AMAGIC(stash)? TRUE: FALSE; | |
767 | gvp=(GV**)hv_fetch(stash,"OVERLOAD",8,FALSE); | |
748a9306 LW |
768 | if (amtp && amtp->table) { |
769 | int i; | |
770 | for (i=1;i<NofAMmeth*2;i++) { | |
771 | if (amtp->table[i]) { | |
772 | SvREFCNT_dec(amtp->table[i]); | |
773 | } | |
774 | } | |
775 | } | |
a0d0e21e LW |
776 | sv_unmagic((SV*)stash, 'c'); |
777 | ||
778 | DEBUG_o( deb("Recalcing overload magic in package %s\n",HvNAME(stash)) ); | |
779 | ||
780 | if (gvp && ((gv = *gvp) != (GV*)&sv_undef && (hv = GvHV(gv)))) { | |
781 | int filled=0; | |
782 | int i; | |
783 | char *cp; | |
784 | AMT amt; | |
785 | SV* sv; | |
786 | SV** svp; | |
787 | ||
788 | /* if (*(svp)==(SV*)amagic_generation && *(svp+1)==(SV*)sub_generation) { | |
789 | DEBUG_o( deb("Overload magic in package %s up-to-date\n",HvNAME(stash)) | |
790 | ); | |
791 | return HV_AMAGIC(stash)? TRUE: FALSE; | |
792 | }*/ | |
793 | ||
794 | amt.was_ok_am=amagic_generation; | |
795 | amt.was_ok_sub=sub_generation; | |
796 | amt.fallback=AMGfallNO; | |
797 | ||
798 | /* Work with "fallback" key, which we assume to be first in AMG_names */ | |
799 | ||
800 | if ((cp=((char**)(*AMG_names))[0]) && | |
801 | (svp=(SV**)hv_fetch(hv,cp,strlen(cp),FALSE)) && (sv = *svp)) { | |
802 | if (SvTRUE(sv)) amt.fallback=AMGfallYES; | |
803 | else if (SvOK(sv)) amt.fallback=AMGfallNEVER; | |
804 | } | |
805 | ||
806 | for (i=1;i<NofAMmeth*2;i++) { | |
807 | cv=0; | |
808 | ||
809 | if ( (cp=((char**)(*AMG_names))[i]) ) { | |
810 | svp=(SV**)hv_fetch(hv,cp,strlen(cp),FALSE); | |
811 | if (svp && ((sv = *svp) != (GV*)&sv_undef)) { | |
812 | switch (SvTYPE(sv)) { | |
813 | default: | |
814 | if (!SvROK(sv)) { | |
815 | if (!SvOK(sv)) break; | |
748a9306 | 816 | gv = gv_fetchmethod(stash, SvPV(sv, na)); |
a0d0e21e LW |
817 | if (gv) cv = GvCV(gv); |
818 | break; | |
819 | } | |
820 | cv = (CV*)SvRV(sv); | |
821 | if (SvTYPE(cv) == SVt_PVCV) | |
822 | break; | |
823 | /* FALL THROUGH */ | |
824 | case SVt_PVHV: | |
825 | case SVt_PVAV: | |
826 | die("Not a subroutine reference in %%OVERLOAD"); | |
827 | return FALSE; | |
828 | case SVt_PVCV: | |
829 | cv = (CV*)sv; | |
830 | break; | |
831 | case SVt_PVGV: | |
832 | if (!(cv = GvCV((GV*)sv))) | |
833 | cv = sv_2cv(sv, &stash, &gv, TRUE); | |
834 | break; | |
835 | } | |
836 | if (cv) filled=1; | |
837 | else { | |
748a9306 | 838 | die("Method for operation %s not found in package %.200s during blessing\n", |
a0d0e21e LW |
839 | cp,HvNAME(stash)); |
840 | return FALSE; | |
841 | } | |
842 | } | |
843 | } | |
748a9306 | 844 | amt.table[i]=(CV*)SvREFCNT_inc(cv); |
a0d0e21e LW |
845 | } |
846 | sv_magic((SV*)stash, 0, 'c', (char*)&amt, sizeof(amt)); | |
847 | if (filled) { | |
848 | /* HV_badAMAGIC_off(stash);*/ | |
849 | HV_AMAGIC_on(stash); | |
850 | return TRUE; | |
851 | } | |
852 | } | |
853 | /*HV_badAMAGIC_off(stash);*/ | |
854 | HV_AMAGIC_off(stash); | |
855 | return FALSE; | |
856 | } | |
857 | ||
858 | /* During call to this subroutine stack can be reallocated. It is | |
859 | * advised to call SPAGAIN macro in your code after call */ | |
860 | ||
861 | SV* | |
862 | amagic_call(left,right,method,flags) | |
863 | SV* left; | |
864 | SV* right; | |
865 | int method; | |
866 | int flags; | |
867 | { | |
868 | MAGIC *mg; | |
869 | CV *cv; | |
870 | CV **cvp=NULL, **ocvp=NULL; | |
871 | AMT *amtp, *oamtp; | |
872 | int fl=0, off, off1, lr=0, assign=AMGf_assign & flags, notfound=0; | |
748a9306 | 873 | int postpr=0, inc_dec_ass=0, assignshift=assign?1:0; |
a0d0e21e LW |
874 | HV* stash; |
875 | if (!(AMGf_noleft & flags) && SvAMAGIC(left) | |
876 | && (mg = mg_find((SV*)(stash=SvSTASH(SvRV(left))),'c')) | |
877 | && (ocvp = cvp = ((oamtp=amtp=(AMT*)mg->mg_ptr)->table)) | |
748a9306 LW |
878 | && ((cv = cvp[off=method+assignshift]) |
879 | || (assign && amtp->fallback > AMGfallNEVER && /* fallback to | |
880 | * usual method */ | |
881 | (fl = 1, cv = cvp[off=method])))) { | |
a0d0e21e LW |
882 | lr = -1; /* Call method for left argument */ |
883 | } else { | |
884 | if (cvp && amtp->fallback > AMGfallNEVER && flags & AMGf_unary) { | |
885 | int logic; | |
886 | ||
887 | /* look for substituted methods */ | |
888 | switch (method) { | |
889 | case inc_amg: | |
748a9306 | 890 | if (((cv = cvp[off=add_ass_amg]) && (inc_dec_ass=1)) |
a0d0e21e LW |
891 | || ((cv = cvp[off=add_amg]) && (postpr=1))) { |
892 | right = &sv_yes; lr = -1; assign = 1; | |
893 | } | |
894 | break; | |
895 | case dec_amg: | |
748a9306 | 896 | if (((cv = cvp[off=subtr_ass_amg]) && (inc_dec_ass=1)) |
a0d0e21e LW |
897 | || ((cv = cvp[off=subtr_amg]) && (postpr=1))) { |
898 | right = &sv_yes; lr = -1; assign = 1; | |
899 | } | |
900 | break; | |
901 | case bool__amg: | |
902 | (void)((cv = cvp[off=numer_amg]) || (cv = cvp[off=string_amg])); | |
903 | break; | |
904 | case numer_amg: | |
905 | (void)((cv = cvp[off=string_amg]) || (cv = cvp[off=bool__amg])); | |
906 | break; | |
907 | case string_amg: | |
908 | (void)((cv = cvp[off=numer_amg]) || (cv = cvp[off=bool__amg])); | |
909 | break; | |
748a9306 LW |
910 | case copy_amg: |
911 | { | |
912 | SV* ref=SvRV(left); | |
913 | if (!SvROK(ref) && SvTYPE(ref) <= SVt_PVMG) { /* Just to be | |
914 | * extra | |
915 | * causious, | |
916 | * maybe in some | |
917 | * additional | |
918 | * cases sv_setsv | |
919 | * is safe too */ | |
920 | SV* newref = newSVsv(ref); | |
921 | SvOBJECT_on(newref); | |
922 | SvSTASH(newref) = (HV*)SvREFCNT_inc(SvSTASH(ref)); | |
923 | return newref; | |
924 | } | |
925 | } | |
926 | break; | |
a0d0e21e | 927 | case abs_amg: |
748a9306 | 928 | if ((cvp[off1=lt_amg] || cvp[off1=ncmp_amg]) |
a0d0e21e | 929 | && ((cv = cvp[off=neg_amg]) || (cv = cvp[off=subtr_amg]))) { |
748a9306 | 930 | SV* nullsv=sv_2mortal(newSViv(0)); |
a0d0e21e | 931 | if (off1==lt_amg) { |
748a9306 | 932 | SV* lessp = amagic_call(left,nullsv, |
a0d0e21e LW |
933 | lt_amg,AMGf_noright); |
934 | logic = SvTRUE(lessp); | |
935 | } else { | |
748a9306 | 936 | SV* lessp = amagic_call(left,nullsv, |
a0d0e21e LW |
937 | ncmp_amg,AMGf_noright); |
938 | logic = (SvNV(lessp) < 0); | |
939 | } | |
940 | if (logic) { | |
941 | if (off==subtr_amg) { | |
942 | right = left; | |
748a9306 | 943 | left = nullsv; |
a0d0e21e LW |
944 | lr = 1; |
945 | } | |
946 | } else { | |
947 | return left; | |
948 | } | |
949 | } | |
950 | break; | |
951 | case neg_amg: | |
952 | if (cv = cvp[off=subtr_amg]) { | |
953 | right = left; | |
954 | left = sv_2mortal(newSViv(0)); | |
955 | lr = 1; | |
956 | } | |
957 | break; | |
958 | default: | |
959 | goto not_found; | |
960 | } | |
961 | if (!cv) goto not_found; | |
962 | } else if (!(AMGf_noright & flags) && SvAMAGIC(right) | |
963 | && (mg = mg_find((SV*)(stash=SvSTASH(SvRV(right))),'c')) | |
964 | && (cvp = ((amtp=(AMT*)mg->mg_ptr)->table)) | |
965 | && (cv = cvp[off=method])) { /* Method for right | |
966 | * argument found */ | |
967 | lr=1; | |
748a9306 LW |
968 | } else if (((ocvp && oamtp->fallback > AMGfallNEVER |
969 | && (cvp=ocvp) && (lr=-1)) | |
a0d0e21e LW |
970 | || (cvp && amtp->fallback > AMGfallNEVER && (lr=1))) |
971 | && !(flags & AMGf_unary)) { | |
972 | /* We look for substitution for | |
973 | * comparison operations and | |
974 | * concatendation */ | |
975 | if (method==concat_amg || method==concat_ass_amg | |
976 | || method==repeat_amg || method==repeat_ass_amg) { | |
977 | return NULL; /* Delegate operation to string conversion */ | |
978 | } | |
979 | off = -1; | |
980 | switch (method) { | |
981 | case lt_amg: | |
982 | case le_amg: | |
983 | case gt_amg: | |
984 | case ge_amg: | |
985 | case eq_amg: | |
986 | case ne_amg: | |
987 | postpr = 1; off=ncmp_amg; break; | |
988 | case slt_amg: | |
989 | case sle_amg: | |
990 | case sgt_amg: | |
991 | case sge_amg: | |
992 | case seq_amg: | |
993 | case sne_amg: | |
994 | postpr = 1; off=scmp_amg; break; | |
995 | } | |
996 | if (off != -1) cv = cvp[off]; | |
997 | if (!cv) { | |
998 | goto not_found; | |
999 | } | |
1000 | } else { | |
1001 | not_found: /* No method found, either report or die */ | |
1002 | if (ocvp && (cv=ocvp[nomethod_amg])) { /* Call report method */ | |
1003 | notfound = 1; lr = -1; | |
1004 | } else if (cvp && (cv=cvp[nomethod_amg])) { | |
1005 | notfound = 1; lr = 1; | |
1006 | } else { | |
1007 | char tmpstr[512]; | |
748a9306 LW |
1008 | if (off==-1) off=method; |
1009 | sprintf(tmpstr,"Operation `%s': no method found,\n\tleft argument %s%.200s,\n\tright argument %s%.200s", | |
a0d0e21e LW |
1010 | ((char**)AMG_names)[off], |
1011 | SvAMAGIC(left)? | |
1012 | "in overloaded package ": | |
1013 | "has no overloaded magic", | |
1014 | SvAMAGIC(left)? | |
1015 | HvNAME(SvSTASH(SvRV(left))): | |
1016 | "", | |
1017 | SvAMAGIC(right)? | |
1018 | "in overloaded package ": | |
1019 | "has no overloaded magic", | |
1020 | SvAMAGIC(right)? | |
1021 | HvNAME(SvSTASH(SvRV(right))): | |
1022 | ""); | |
1023 | if (amtp && amtp->fallback >= AMGfallYES) { | |
1024 | DEBUG_o( deb(tmpstr) ); | |
1025 | } else { | |
1026 | die(tmpstr); | |
1027 | } | |
1028 | return NULL; | |
1029 | } | |
1030 | } | |
1031 | } | |
1032 | if (!notfound) { | |
748a9306 | 1033 | DEBUG_o( deb("Overloaded operator `%s'%s%s%s:\n\tmethod%s found%s in package %.200s%s\n", |
a0d0e21e | 1034 | ((char**)AMG_names)[off], |
748a9306 LW |
1035 | method+assignshift==off? "" : |
1036 | " (initially `", | |
1037 | method+assignshift==off? "" : | |
1038 | ((char**)AMG_names)[method+assignshift], | |
1039 | method+assignshift==off? "" : "')", | |
1040 | flags & AMGf_unary? "" : | |
1041 | lr==1 ? " for right argument": " for left argument", | |
1042 | flags & AMGf_unary? " for argument" : "", | |
a0d0e21e LW |
1043 | HvNAME(stash), |
1044 | fl? ",\n\tassignment variant used": "") ); | |
748a9306 LW |
1045 | /* Since we use shallow copy during assignment, we need |
1046 | * to dublicate the contents, probably calling user-supplied | |
1047 | * version of copy operator | |
1048 | */ | |
1049 | if ((method+assignshift==off | |
1050 | && (assign || method==inc_amg || method==dec_amg)) | |
1051 | || inc_dec_ass) RvDEEPCP(left); | |
a0d0e21e LW |
1052 | } |
1053 | { | |
1054 | dSP; | |
1055 | BINOP myop; | |
1056 | SV* res; | |
1057 | ||
1058 | Zero(&myop, 1, BINOP); | |
1059 | myop.op_last = (OP *) &myop; | |
1060 | myop.op_next = Nullop; | |
1061 | myop.op_flags = OPf_KNOW|OPf_STACKED; | |
1062 | ||
1063 | ENTER; | |
1064 | SAVESPTR(op); | |
1065 | op = (OP *) &myop; | |
1066 | PUTBACK; | |
1067 | pp_pushmark(); | |
1068 | ||
1069 | EXTEND(sp, notfound + 5); | |
1070 | PUSHs(lr>0? right: left); | |
1071 | PUSHs(lr>0? left: right); | |
1072 | PUSHs( assign ? &sv_undef : (lr>0? &sv_yes: &sv_no)); | |
1073 | if (notfound) { | |
1074 | PUSHs( sv_2mortal(newSVpv(((char**)AMG_names)[off],0)) ); | |
1075 | } | |
1076 | PUSHs((SV*)cv); | |
1077 | PUTBACK; | |
1078 | ||
1079 | if (op = pp_entersub()) | |
1080 | run(); | |
1081 | LEAVE; | |
1082 | SPAGAIN; | |
1083 | ||
1084 | res=POPs; | |
1085 | PUTBACK; | |
1086 | ||
1087 | if (notfound) { | |
1088 | /* sv_2mortal(res); */ | |
1089 | return NULL; | |
1090 | } | |
1091 | ||
1092 | if (postpr) { | |
1093 | int ans; | |
1094 | switch (method) { | |
1095 | case le_amg: | |
1096 | case sle_amg: | |
1097 | ans=SvIV(res)<=0; break; | |
1098 | case lt_amg: | |
1099 | case slt_amg: | |
1100 | ans=SvIV(res)<0; break; | |
1101 | case ge_amg: | |
1102 | case sge_amg: | |
1103 | ans=SvIV(res)>=0; break; | |
1104 | case gt_amg: | |
1105 | case sgt_amg: | |
1106 | ans=SvIV(res)>0; break; | |
1107 | case eq_amg: | |
1108 | case seq_amg: | |
1109 | ans=SvIV(res)==0; break; | |
1110 | case ne_amg: | |
1111 | case sne_amg: | |
1112 | ans=SvIV(res)!=0; break; | |
1113 | case inc_amg: | |
1114 | case dec_amg: | |
1115 | SvSetSV(left,res); return res; break; | |
1116 | } | |
1117 | return ans? &sv_yes: &sv_no; | |
748a9306 LW |
1118 | } else if (method==copy_amg) { |
1119 | if (!SvROK(res)) { | |
1120 | die("Copy method did not return a reference"); | |
1121 | } | |
1122 | return SvREFCNT_inc(SvRV(res)); | |
a0d0e21e LW |
1123 | } else { |
1124 | return res; | |
1125 | } | |
1126 | } | |
1127 | } | |
1128 | #endif /* OVERLOAD */ |