3 * Copyright (c) 1991-1994, Larry Wall
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.
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,'
28 if (!gv || SvTYPE((SV*)gv) != SVt_PVGV)
29 croak("Bad symbol for array");
39 if (!gv || SvTYPE((SV*)gv) != SVt_PVGV)
40 croak("Bad symbol for hash");
50 if (!gv || SvTYPE((SV*)gv) != SVt_PVGV)
51 croak("Bad symbol for filehandle");
65 sprintf(tmpbuf, "_<%s", name);
66 tmplen = strlen(tmpbuf);
67 gv = *(GV**)hv_fetch(defstash, tmpbuf, tmplen, TRUE);
69 gv_init(gv, defstash, tmpbuf, tmplen, FALSE);
70 sv_setpv(GvSV(gv), name);
71 if (*name == '/' && (instr(name, "/lib/") || instr(name, ".pm")))
74 hv_magic(GvHVn(gv_AVadd(gv)), gv, 'L');
79 gv_init(gv, stash, name, len, multi)
88 sv_upgrade((SV*)gv, SVt_PVGV);
92 GvGP(gv) = gp_ref(gp);
94 GvSV(gv) = NEWSV(72,0);
95 GvLINE(gv) = curcop->cop_line;
96 GvFILEGV(gv) = curcop->cop_filegv;
98 sv_magic((SV*)gv, (SV*)gv, '*', name, len);
100 GvNAME(gv) = savepvn(name, len);
107 gv_init_sv(gv, sv_type)
125 gv_fetchmeth(stash, name, len, level)
141 croak("Recursive inheritance detected");
143 gvp = (GV**)hv_fetch(stash, name, len, TRUE);
145 DEBUG_o( deb("Looking for method %s in package %s\n",name,HvNAME(stash)) );
147 if (SvTYPE(topgv) != SVt_PVGV)
148 gv_init(topgv, stash, name, len, TRUE);
150 if (cv = GvCV(topgv)) {
151 if (CvXSUB(cv) || CvROOT(cv) || CvGV(cv)) { /* Not deleted, possibly autoloaded. */
152 if (GvCVGEN(topgv) >= sub_generation)
153 return topgv; /* valid cached inheritance */
154 if (!GvCVGEN(topgv)) { /* not an inheritance cache */
158 /* stale cached entry, just junk it */
160 GvCV(topgv) = cv = 0;
163 /* Now cv = 0, and there is no cv in topgv. */
165 gvp = (GV**)hv_fetch(stash,"ISA",3,FALSE);
166 if (gvp && (gv = *gvp) != (GV*)&sv_undef && (av = GvAV(gv))) {
167 SV** svp = AvARRAY(av);
168 I32 items = AvFILL(av) + 1;
171 HV* basestash = gv_stashsv(sv, FALSE);
174 warn("Can't locate package %s for @%s::ISA",
175 SvPVX(sv), HvNAME(stash));
178 gv = gv_fetchmeth(basestash, name, len, level + 1);
180 GvCV(topgv) = GvCV(gv); /* cache the CV */
181 GvCVGEN(topgv) = sub_generation; /* valid for now */
182 SvREFCNT_inc(GvCV(gv));
189 if (lastchance = gv_stashpvn("UNIVERSAL", 9, FALSE)) {
190 if (gv = gv_fetchmeth(lastchance, name, len, level + 1)) {
191 GvCV(topgv) = GvCV(gv); /* cache the CV */
192 GvCVGEN(topgv) = sub_generation; /* valid for now */
193 SvREFCNT_inc(GvCV(gv));
203 gv_fetchmethod(stash, name)
211 for (nend = name; *nend; nend++) {
212 if (*nend == ':' || *nend == '\'')
217 char *origname = name;
223 if (strEQ(origname,"SUPER")) {
224 /* Degenerate case ->SUPER::method should really lookup in original stash */
225 SV *tmpstr = sv_2mortal(newSVpv(HvNAME(curcop->cop_stash),0));
226 sv_catpvn(tmpstr, "::SUPER", 7);
227 stash = gv_stashpvn(SvPVX(tmpstr),SvCUR(tmpstr),TRUE);
229 DEBUG_o( deb("Treating %s as %s::%s\n",origname,HvNAME(stash),name) );
231 stash = gv_stashpvn(origname, nsplit - origname, TRUE);
235 gv = gv_fetchmeth(stash, name, nend - name, 0);
238 /* Failed obvious case - look for SUPER as last element of stash's name */
239 char *packname = HvNAME(stash);
240 STRLEN len = strlen(packname);
241 if (len >= 7 && strEQ(packname+len-7,"::SUPER")) {
242 /* Now look for @.*::SUPER::ISA */
243 GV** gvp = (GV**)hv_fetch(stash,"ISA",3,FALSE);
245 if (!gvp || (gv = *gvp) == (GV*)&sv_undef || !GvAV(gv)) {
246 /* No @ISA in package ending in ::SUPER - drop suffix
247 and see if there is an @ISA there
250 char ch = packname[len];
252 packname[len] = '\0';
253 basestash = gv_stashpvn(packname, len, TRUE);
255 gvp = (GV**)hv_fetch(basestash,"ISA",3,FALSE);
256 if (gvp && (gv = *gvp) != (GV*)&sv_undef && (av = GvAV(gv))) {
257 /* Okay found @ISA after dropping the SUPER, alias it */
258 SV *tmpstr = sv_2mortal(newSVpv(HvNAME(stash),0));
259 sv_catpvn(tmpstr, "::ISA", 5);
260 gv = gv_fetchpv(SvPV(tmpstr,na),TRUE,SVt_PVGV);
262 GvAV(gv) = (AV*)SvREFCNT_inc(av);
263 /* ... and re-try lookup */
264 gv = gv_fetchmeth(stash, name, nend - name, 0);
266 croak("Cannot create %s::ISA",HvNAME(stash));
276 if (strEQ(name,"import"))
278 else if (strNE(name, "AUTOLOAD")) {
279 if (gv = gv_fetchmeth(stash, "AUTOLOAD", 8, 0)) {
280 /* One more chance... */
281 SV *tmpstr = sv_2mortal(newSVpv(HvNAME(stash),0));
282 sv_catpvn(tmpstr,"::", 2);
283 sv_catpvn(tmpstr, name, nend - name);
285 sv_setsv(GvSV(CvGV(cv)), tmpstr);
286 SvTAINTED_off(GvSV(CvGV(cv)));
294 gv_stashpv(name,create)
298 return gv_stashpvn(name, strlen(name), create);
302 gv_stashpvn(name,namelen,create)
311 if (namelen > 1200) {
314 warn("Weird package name \"%s\" truncated", name);
316 warn("Weird package name \"%.*s...\" truncated", namelen, name);
319 Copy(name,tmpbuf,namelen,char);
320 tmpbuf[namelen++] = ':';
321 tmpbuf[namelen++] = ':';
322 tmpbuf[namelen] = '\0';
323 tmpgv = gv_fetchpv(tmpbuf,create, SVt_PVHV);
327 GvHV(tmpgv) = newHV();
330 HvNAME(stash) = savepv(name);
335 gv_stashsv(sv,create)
342 return gv_stashpvn(ptr, len, create);
347 gv_fetchpv(nambeg,add,sv_type)
352 register char *name = nambeg;
356 register char *namend;
361 if (*name == '*' && isALPHA(name[1])) /* accidental stringify on a GV? */
364 for (namend = name; *namend; namend++) {
365 if ((*namend == '\'' && namend[1]) ||
366 (*namend == ':' && namend[1] == ':'))
370 if (!stash || !SvREFCNT(stash)) /* symbol table under destruction */
375 New(601, tmpbuf, len+3, char);
376 Copy(name, tmpbuf, len, char);
380 gvp = (GV**)hv_fetch(stash,tmpbuf,len,add);
382 if (!gvp || *gvp == (GV*)&sv_undef)
386 if (SvTYPE(gv) == SVt_PVGV)
391 gv_init(gv, stash, nambeg, namend - nambeg, (add & 2));
393 if (!(stash = GvHV(gv)))
394 stash = GvHV(gv) = newHV();
397 HvNAME(stash) = savepvn(nambeg, namend - nambeg);
405 return gv ? gv : (GV*)*hv_fetch(defstash, "main::", 6, TRUE);
412 /* No stash in name, so see how we can default */
415 if (isIDFIRST(*name)) {
416 if (isUPPER(*name)) {
418 if (*name == 'S' && (
419 strEQ(name, "SIG") ||
420 strEQ(name, "STDIN") ||
421 strEQ(name, "STDOUT") ||
422 strEQ(name, "STDERR") ))
425 else if (*name > 'E') {
426 if (*name == 'I' && strEQ(name, "INC"))
429 else if (*name > 'A') {
430 if (*name == 'E' && strEQ(name, "ENV"))
433 else if (*name == 'A' && (
434 strEQ(name, "ARGV") ||
435 strEQ(name, "ARGVOUT") ))
438 else if (*name == '_' && !name[1])
442 else if ((COP*)curcop == &compiling) {
444 if (add && (hints & HINT_STRICT_VARS) &&
445 sv_type != SVt_PVCV &&
446 sv_type != SVt_PVGV &&
447 sv_type != SVt_PVFM &&
448 sv_type != SVt_PVIO &&
449 !(len == 1 && sv_type == SVt_PV && strchr("ab",*name)) )
451 gvp = (GV**)hv_fetch(stash,name,len,0);
453 *gvp == (GV*)&sv_undef ||
454 SvTYPE(*gvp) != SVt_PVGV)
458 else if (sv_type == SVt_PV && !GvIMPORTED_SV(*gvp) ||
459 sv_type == SVt_PVAV && !GvIMPORTED_AV(*gvp) ||
460 sv_type == SVt_PVHV && !GvIMPORTED_HV(*gvp) )
462 warn("Variable \"%c%s\" is not imported",
463 sv_type == SVt_PVAV ? '@' :
464 sv_type == SVt_PVHV ? '%' : '$',
467 warn("(Did you mean &%s instead?)\n", name);
473 stash = curcop->cop_stash;
479 /* By this point we should have a stash and a name */
483 warn("Global symbol \"%s\" requires explicit package name", name);
485 stash = curstash ? curstash : defstash; /* avoid core dumps */
491 if (!SvREFCNT(stash)) /* symbol table under destruction */
494 gvp = (GV**)hv_fetch(stash,name,len,add);
495 if (!gvp || *gvp == (GV*)&sv_undef)
498 if (SvTYPE(gv) == SVt_PVGV) {
501 gv_init_sv(gv, sv_type);
506 /* Adding a new symbol */
509 warn("Had to create %s unexpectedly", nambeg);
510 gv_init(gv, stash, name, len, add & 2);
511 gv_init_sv(gv, sv_type);
513 /* set up magic where warranted */
516 if (strEQ(name, "ARGV")) {
517 IoFLAGS(GvIOn(gv)) |= IOf_ARGV|IOf_START;
527 if (strnEQ(name, "EXPORT", 6))
531 if (strEQ(name, "ISA")) {
534 sv_magic((SV*)av, (SV*)gv, 'I', Nullch, 0);
535 if (add & 2 && strEQ(nambeg,"AnyDBM_File::ISA") && AvFILL(av) == -1)
538 av_push(av, newSVpv(pname = "NDBM_File",0));
539 gv_stashpvn(pname, 9, TRUE);
540 av_push(av, newSVpv(pname = "DB_File",0));
541 gv_stashpvn(pname, 7, TRUE);
542 av_push(av, newSVpv(pname = "GDBM_File",0));
543 gv_stashpvn(pname, 9, TRUE);
544 av_push(av, newSVpv(pname = "SDBM_File",0));
545 gv_stashpvn(pname, 9, TRUE);
546 av_push(av, newSVpv(pname = "ODBM_File",0));
547 gv_stashpvn(pname, 9, TRUE);
553 if (strEQ(name, "OVERLOAD")) {
556 sv_magic((SV*)hv, (SV*)gv, 'A', 0, 0);
559 #endif /* OVERLOAD */
561 if (strEQ(name, "SIG")) {
567 hv_magic(hv, siggv, 'S');
568 for(i=1;sig_name[i];i++) {
570 init=hv_fetch(hv,sig_name[i],strlen(sig_name[i]),1);
572 sv_setsv(*init,&sv_undef);
576 /* initialize signal stack */
577 signalstack = newAV();
578 AvREAL_off(signalstack);
579 av_extend(signalstack, 30);
580 av_fill(signalstack, 0);
608 sv_setpv(GvSV(gv),chopset);
613 if (dowarn && len == 1 && sv_type == SVt_PV)
614 warn("Use of $%s is deprecated", name);
658 SvREADONLY_on(GvSV(gv));
660 sv_magic(GvSV(gv), (SV*)gv, 0, name, len);
666 sv_setpv(GvSV(gv),"\f");
672 sv_setpv(GvSV(gv),"\034");
678 sv_upgrade(sv, SVt_PVNV);
679 sv_setpv(sv, patchlevel);
687 gv_fullname3(sv, gv, prefix)
692 HV *hv = GvSTASH(gv);
697 sv_setpv(sv, prefix ? prefix : "");
698 sv_catpv(sv,HvNAME(hv));
699 sv_catpvn(sv,"::", 2);
700 sv_catpvn(sv,GvNAME(gv),GvNAMELEN(gv));
704 gv_efullname3(sv, gv, prefix)
712 gv_fullname3(sv, egv, prefix);
715 /* XXX compatibility with versions <= 5.003. */
721 gv_fullname3(sv, gv, sv == (SV*)gv ? "*" : "");
724 /* XXX compatibility with versions <= 5.003. */
730 gv_efullname3(sv, gv, sv == (SV*)gv ? "*" : "");
739 io = (IO*)NEWSV(0,0);
740 sv_upgrade((SV *)io,SVt_PVIO);
743 iogv = gv_fetchpv("IO::Handle::", TRUE, SVt_PVHV);
744 SvSTASH(io) = (HV*)SvREFCNT_inc(GvHV(iogv));
760 for (i = 0; i <= (I32) HvMAX(stash); i++) {
761 for (entry = HvARRAY(stash)[i]; entry; entry = HeNEXT(entry)) {
762 if (HeKEY(entry)[HeKLEN(entry)-1] == ':' &&
763 (gv = (GV*)HeVAL(entry)) && (hv = GvHV(gv)) && HvNAME(hv))
766 gv_check(hv); /* nested package */
768 else if (isALPHA(*HeKEY(entry))) {
769 gv = (GV*)HeVAL(entry);
772 curcop->cop_line = GvLINE(gv);
773 filegv = GvFILEGV(gv);
774 curcop->cop_filegv = filegv;
775 if (filegv && GvMULTI(filegv)) /* Filename began with slash */
777 warn("Name \"%s::%s\" used only once: possible typo",
778 HvNAME(stash), GvNAME(gv));
788 (void)sprintf(tokenbuf,"%s::_GEN_%ld",pack,(long)gensym++);
789 return gv_fetchpv(tokenbuf,TRUE, SVt_PVGV);
792 /* hopefully this is only called on local symbol table entries */
810 if (!gv || !(gp = GvGP(gv)))
812 if (gp->gp_refcnt == 0) {
813 warn("Attempt to free unreferenced glob pointers");
816 if (--gp->gp_refcnt > 0) {
817 if (gp->gp_egv == gv)
822 SvREFCNT_dec(gp->gp_sv);
823 SvREFCNT_dec(gp->gp_av);
824 SvREFCNT_dec(gp->gp_hv);
825 SvREFCNT_dec(gp->gp_io);
826 SvREFCNT_dec(gp->gp_cv);
827 SvREFCNT_dec(gp->gp_form);
833 #if defined(CRIPPLED_CC) && (defined(iAPX286) || defined(M_I286) || defined(I80286))
837 #ifdef MICROPORT /* Microport 2.4 hack */
842 return GvGP(gv)->gp_av;
844 return GvGP(gv_AVadd(gv))->gp_av;
851 return GvGP(gv)->gp_hv;
853 return GvGP(gv_HVadd(gv))->gp_hv;
855 #endif /* Microport 2.4 hack */
858 /* Updates and caches the CV's */
868 MAGIC* mg=mg_find((SV*)stash,'c');
869 AMT *amtp=mg ? (AMT*)mg->mg_ptr: NULL;
872 if (mg && (amtp=((AMT*)(mg->mg_ptr)))->was_ok_am == amagic_generation &&
873 amtp->was_ok_sub == sub_generation)
874 return AMT_AMAGIC(amtp);
875 if (amtp && AMT_AMAGIC(amtp)) { /* Have table. */
877 for (i=1; i<NofAMmeth; i++) {
878 if (amtp->table[i]) {
879 SvREFCNT_dec(amtp->table[i]);
883 sv_unmagic((SV*)stash, 'c');
885 DEBUG_o( deb("Recalcing overload magic in package %s\n",HvNAME(stash)) );
887 amt.was_ok_am = amagic_generation;
888 amt.was_ok_sub = sub_generation;
889 amt.fallback = AMGfallNO;
892 #ifdef OVERLOAD_VIA_HASH
893 gvp=(GV**)hv_fetch(stash,"OVERLOAD",8,FALSE); /* A shortcut */
894 if (gvp && ((gv = *gvp) != (GV*)&sv_undef && (hv = GvHV(gv)))) {
901 /* Work with "fallback" key, which we assume to be first in AMG_names */
903 if (( cp = (char *)AMG_names[0] ) &&
904 (svp = (SV**)hv_fetch(hv,cp,strlen(cp),FALSE)) && (sv = *svp)) {
905 if (SvTRUE(sv)) amt.fallback=AMGfallYES;
906 else if (SvOK(sv)) amt.fallback=AMGfallNEVER;
908 for (i = 1; i < NofAMmeth; i++) {
910 cp = (char *)AMG_names[i];
912 svp = (SV**)hv_fetch(hv, cp, strlen(cp), FALSE);
913 if (svp && ((sv = *svp) != &sv_undef)) {
914 switch (SvTYPE(sv)) {
917 if (!SvOK(sv)) break;
918 gv = gv_fetchmethod(stash, SvPV(sv, na));
919 if (gv) cv = GvCV(gv);
923 if (SvTYPE(cv) == SVt_PVCV)
928 croak("Not a subroutine reference in overload table");
934 if (!(cv = GvCVu((GV*)sv)))
935 cv = sv_2cv(sv, &stash, &gv, TRUE);
940 croak("Method for operation %s not found in package %.256s during blessing\n",
953 /* Work with "fallback" key, which we assume to be first in AMG_names */
955 if ( cp = (char *)AMG_names[0] ) {
956 /* Try to find via inheritance. */
957 gv = gv_fetchmeth(stash, "()", 2, 0); /* A cooky: "()". */
958 if (gv) sv = GvSV(gv);
960 if (!sv) /* Empty */;
961 else if (SvTRUE(sv)) amt.fallback=AMGfallYES;
962 else if (SvOK(sv)) amt.fallback=AMGfallNEVER;
965 for (i = 1; i < NofAMmeth; i++) {
967 cp = (char *)AMG_names[i];
969 *buf = '('; /* A cooky: "(". */
971 gv = gv_fetchmeth(stash, buf, strlen(buf), 0); /* fills the stash! */
972 if(gv && (cv = GvCV(gv))) filled = 1;
974 amt.table[i]=(CV*)SvREFCNT_inc(cv);
978 sv_magic((SV*)stash, 0, 'c', (char*)&amt, sizeof(AMT));
982 /* Here we have no table: */
983 AMT_AMAGIC_off(&amt);
984 sv_magic((SV*)stash, 0, 'c', (char*)&amt, sizeof(AMTS));
988 /* During call to this subroutine stack can be reallocated. It is
989 * advised to call SPAGAIN macro in your code after call */
992 amagic_call(left,right,method,flags)
1000 CV **cvp=NULL, **ocvp=NULL;
1002 int fl=0, off, off1, lr=0, assign=AMGf_assign & flags, notfound=0;
1003 int postpr=0, inc_dec_ass=0, assignshift=assign?1:0;
1005 if (!(AMGf_noleft & flags) && SvAMAGIC(left)
1006 && (mg = mg_find((SV*)(stash=SvSTASH(SvRV(left))),'c'))
1007 && (ocvp = cvp = (AMT_AMAGIC((AMT*)mg->mg_ptr)
1008 ? (oamtp = amtp = (AMT*)mg->mg_ptr)->table
1010 && ((cv = cvp[off=method+assignshift])
1011 || (assign && amtp->fallback > AMGfallNEVER && /* fallback to
1013 (fl = 1, cv = cvp[off=method])))) {
1014 lr = -1; /* Call method for left argument */
1016 if (cvp && amtp->fallback > AMGfallNEVER && flags & AMGf_unary) {
1019 /* look for substituted methods */
1022 if (((cv = cvp[off=add_ass_amg]) && (inc_dec_ass=1))
1023 || ((cv = cvp[off=add_amg]) && (postpr=1))) {
1024 right = &sv_yes; lr = -1; assign = 1;
1028 if (((cv = cvp[off=subtr_ass_amg]) && (inc_dec_ass=1))
1029 || ((cv = cvp[off=subtr_amg]) && (postpr=1))) {
1030 right = &sv_yes; lr = -1; assign = 1;
1034 (void)((cv = cvp[off=numer_amg]) || (cv = cvp[off=string_amg]));
1037 (void)((cv = cvp[off=string_amg]) || (cv = cvp[off=bool__amg]));
1040 (void)((cv = cvp[off=numer_amg]) || (cv = cvp[off=bool__amg]));
1043 (void)((cv = cvp[off=bool__amg])
1044 || (cv = cvp[off=numer_amg])
1045 || (cv = cvp[off=string_amg]));
1051 if (!SvROK(ref) && SvTYPE(ref) <= SVt_PVMG) { /* Just to be
1058 SV* newref = newSVsv(ref);
1059 SvOBJECT_on(newref);
1060 SvSTASH(newref) = (HV*)SvREFCNT_inc(SvSTASH(ref));
1066 if ((cvp[off1=lt_amg] || cvp[off1=ncmp_amg])
1067 && ((cv = cvp[off=neg_amg]) || (cv = cvp[off=subtr_amg]))) {
1068 SV* nullsv=sv_2mortal(newSViv(0));
1070 SV* lessp = amagic_call(left,nullsv,
1071 lt_amg,AMGf_noright);
1072 logic = SvTRUE(lessp);
1074 SV* lessp = amagic_call(left,nullsv,
1075 ncmp_amg,AMGf_noright);
1076 logic = (SvNV(lessp) < 0);
1079 if (off==subtr_amg) {
1090 if (cv = cvp[off=subtr_amg]) {
1092 left = sv_2mortal(newSViv(0));
1099 if (!cv) goto not_found;
1100 } else if (!(AMGf_noright & flags) && SvAMAGIC(right)
1101 && (mg = mg_find((SV*)(stash=SvSTASH(SvRV(right))),'c'))
1102 && (cvp = (AMT_AMAGIC((AMT*)mg->mg_ptr)
1103 ? (amtp = (AMT*)mg->mg_ptr)->table
1105 && (cv = cvp[off=method])) { /* Method for right
1108 } else if (((ocvp && oamtp->fallback > AMGfallNEVER
1109 && (cvp=ocvp) && (lr = -1))
1110 || (cvp && amtp->fallback > AMGfallNEVER && (lr=1)))
1111 && !(flags & AMGf_unary)) {
1112 /* We look for substitution for
1113 * comparison operations and
1115 if (method==concat_amg || method==concat_ass_amg
1116 || method==repeat_amg || method==repeat_ass_amg) {
1117 return NULL; /* Delegate operation to string conversion */
1127 postpr = 1; off=ncmp_amg; break;
1134 postpr = 1; off=scmp_amg; break;
1136 if (off != -1) cv = cvp[off];
1141 not_found: /* No method found, either report or croak */
1142 if (ocvp && (cv=ocvp[nomethod_amg])) { /* Call report method */
1143 notfound = 1; lr = -1;
1144 } else if (cvp && (cv=cvp[nomethod_amg])) {
1145 notfound = 1; lr = 1;
1147 if (off==-1) off=method;
1148 sprintf(buf, "Operation `%s': no method found,\n\tleft argument %s%.256s,\n\tright argument %s%.256s",
1149 AMG_names[method + assignshift],
1151 "in overloaded package ":
1152 "has no overloaded magic",
1154 HvNAME(SvSTASH(SvRV(left))):
1157 "in overloaded package ":
1158 "has no overloaded magic",
1160 HvNAME(SvSTASH(SvRV(right))):
1162 if (amtp && amtp->fallback >= AMGfallYES) {
1163 DEBUG_o( deb(buf) );
1172 DEBUG_o( deb("Overloaded operator `%s'%s%s%s:\n\tmethod%s found%s in package %.256s%s\n",
1174 method+assignshift==off? "" :
1176 method+assignshift==off? "" :
1177 AMG_names[method+assignshift],
1178 method+assignshift==off? "" : "')",
1179 flags & AMGf_unary? "" :
1180 lr==1 ? " for right argument": " for left argument",
1181 flags & AMGf_unary? " for argument" : "",
1183 fl? ",\n\tassignment variant used": "") );
1184 /* Since we use shallow copy during assignment, we need
1185 * to dublicate the contents, probably calling user-supplied
1186 * version of copy operator
1188 if ((method + assignshift==off
1189 && (assign || method==inc_amg || method==dec_amg))
1190 || inc_dec_ass) RvDEEPCP(left);
1197 Zero(&myop, 1, BINOP);
1198 myop.op_last = (OP *) &myop;
1199 myop.op_next = Nullop;
1200 myop.op_flags = OPf_KNOW|OPf_STACKED;
1205 if (perldb && curstash != debstash)
1206 op->op_private |= OPpENTERSUB_DB;
1210 EXTEND(sp, notfound + 5);
1211 PUSHs(lr>0? right: left);
1212 PUSHs(lr>0? left: right);
1213 PUSHs( assign ? &sv_undef : (lr>0? &sv_yes: &sv_no));
1215 PUSHs( sv_2mortal(newSVpv((char *)AMG_names[method + assignshift],0)) );
1220 if (op = pp_entersub())
1229 /* sv_2mortal(res); */
1238 ans=SvIV(res)<=0; break;
1241 ans=SvIV(res)<0; break;
1244 ans=SvIV(res)>=0; break;
1247 ans=SvIV(res)>0; break;
1250 ans=SvIV(res)==0; break;
1253 ans=SvIV(res)!=0; break;
1256 SvSetSV(left,res); return left;
1258 ans=!SvOK(res); break;
1260 return ans? &sv_yes: &sv_no;
1261 } else if (method==copy_amg) {
1263 croak("Copy method did not return a reference");
1265 return SvREFCNT_inc(SvRV(res));
1271 #endif /* OVERLOAD */