3 * Copyright (c) 1991-1997, 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 * Then he heard Merry change the note, and up went the Horn-cry of Buckland,
14 * Awake! Awake! Fear, Fire, Foes! Awake!
28 register CV* cv = (CV *) cvarg;
31 #endif /* DEBUGGING */
33 DEBUG_L((PerlIO_printf(PerlIO_stderr(), "%p unsetting CvOWNER of %p:%s\n",
34 thr, cv, SvPEEK((SV*)cv))));
35 MUTEX_LOCK(CvMUTEXP(cv));
36 DEBUG_L(if (CvDEPTH(cv) != 0)
37 PerlIO_printf(PerlIO_stderr(), "depth %ld != 0\n",
39 assert(thr == CvOWNER(cv));
41 MUTEX_UNLOCK(CvMUTEXP(cv));
44 #endif /* USE_THREADS */
56 TAINT_NOT; /* Each statement is presumed innocent */
57 stack_sp = stack_base + cxstack[cxstack_ix].blk_oldsp;
66 if (op->op_private & OPpLVAL_INTRO)
67 PUSHs(save_scalar(cGVOP->op_gv));
69 PUSHs(GvSV(cGVOP->op_gv));
90 sv_setpvn(TARG,s,len);
98 XPUSHs((SV*)cGVOP->op_gv);
115 switch (elem ? *elem : '\0')
118 if (strEQ(elem, "ARRAY"))
122 if (strEQ(elem, "CODE"))
123 ref = (SV*)GvCVu(gv);
126 if (strEQ(elem, "FILEHANDLE")) /* XXX deprecate in 5.005 */
127 ref = (SV*)GvIOp(gv);
130 if (strEQ(elem, "GLOB"))
134 if (strEQ(elem, "HASH"))
138 if (strEQ(elem, "IO"))
139 ref = (SV*)GvIOp(gv);
142 if (strEQ(elem, "NAME"))
143 sv = newSVpv(GvNAME(gv), GvNAMELEN(gv));
146 if (strEQ(elem, "PACKAGE"))
147 sv = newSVpv(HvNAME(GvSTASH(gv)), 0);
150 if (strEQ(elem, "SCALAR"))
171 RETURNOP(cLOGOP->op_other);
180 if (op->op_private & OPpASSIGN_BACKWARDS) {
182 temp = left; left = right; right = temp;
184 if (tainting && tainted && !SvTAINTED(left))
186 SvSetMagicSV(right, left);
195 RETURNOP(cCONDOP->op_true);
197 RETURNOP(cCONDOP->op_false);
203 TAINT_NOT; /* Each statement is presumed innocent */
204 stack_sp = stack_base + cxstack[cxstack_ix].blk_oldsp;
206 oldsave = scopestack[scopestack_ix - 1];
207 LEAVE_SCOPE(oldsave);
213 dSP; dATARGET; tryAMAGICbin(concat,opASSIGN);
220 sv_setpvn(TARG,s,len);
222 else if (SvGMAGICAL(TARG))
224 else if (!SvOK(TARG) && SvTYPE(TARG) <= SVt_PVMG) {
225 sv_setpv(TARG, ""); /* Suppress warning. */
226 s = SvPV_force(TARG, len);
230 sv_catpvn(TARG,s,len);
232 sv_setpvn(TARG,s,len); /* suppress warning */
242 if (op->op_flags & OPf_MOD) {
243 if (op->op_private & OPpLVAL_INTRO)
244 SAVECLEARSV(curpad[op->op_targ]);
245 else if (op->op_private & OPpDEREF)
246 vivify_ref(curpad[op->op_targ], op->op_private & OPpDEREF);
253 last_in_gv = (GV*)(*stack_sp--);
254 return do_readline();
259 dSP; tryAMAGICbinSET(eq,0);
262 SETs(boolSV(TOPn == value));
270 if (SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV)
272 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
273 SvIVX(TOPs) != IV_MAX)
276 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
291 RETURNOP(cLOGOP->op_other);
297 dSP; dATARGET; tryAMAGICbin(add,opASSIGN);
300 SETn( left + right );
308 AV *av = GvAV((GV*)cSVOP->op_sv);
309 SV** svp = av_fetch(av, op->op_private, op->op_flags & OPf_MOD);
310 PUSHs(svp ? *svp : &sv_undef);
318 do_join(TARG, *MARK, MARK, SP);
329 * We ass_u_me that LvTARGOFF() comes first, and that two STRLENs
330 * will be enough to hold an OP*.
332 SV* sv = sv_newmortal();
333 sv_upgrade(sv, SVt_PVLV);
335 Copy(&op, &LvTARGOFF(sv), 1, OP*);
343 /* Oversized hot code. */
347 dSP; dMARK; dORIGMARK;
353 if (op->op_flags & OPf_STACKED)
357 if (SvMAGICAL(gv) && (mg = mg_find((SV*)gv, 'q'))) {
358 if (MARK == ORIGMARK) {
361 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
368 perl_call_method("PRINT", G_SCALAR);
376 if (!(io = GvIO(gv))) {
378 SV* sv = sv_newmortal();
379 gv_fullname3(sv, gv, Nullch);
380 warn("Filehandle %s never opened", SvPV(sv,na));
383 SETERRNO(EBADF,RMS$_IFI);
386 else if (!(fp = IoOFP(io))) {
388 SV* sv = sv_newmortal();
389 gv_fullname3(sv, gv, Nullch);
391 warn("Filehandle %s opened only for input", SvPV(sv,na));
393 warn("print on closed filehandle %s", SvPV(sv,na));
395 SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI);
402 if (!do_print(*MARK, fp))
406 if (PerlIO_write(fp, ofs, ofslen) == 0 || PerlIO_error(fp)) {
415 if (!do_print(*MARK, fp))
424 if (PerlIO_write(fp, ors, orslen) == 0 || PerlIO_error(fp))
427 if (IoFLAGS(io) & IOf_FLUSH)
428 if (PerlIO_flush(fp) == EOF)
450 if (SvTYPE(av) != SVt_PVAV)
451 DIE("Not an ARRAY reference");
452 if (op->op_flags & OPf_REF) {
458 if (SvTYPE(sv) == SVt_PVAV) {
460 if (op->op_flags & OPf_REF) {
468 if (SvTYPE(sv) != SVt_PVGV) {
471 if (SvGMAGICAL(sv)) {
477 if (op->op_flags & OPf_REF ||
478 op->op_private & HINT_STRICT_REFS)
479 DIE(no_usym, "an ARRAY");
482 if (GIMME == G_ARRAY)
487 if (op->op_private & HINT_STRICT_REFS)
488 DIE(no_symref, sym, "an ARRAY");
489 gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVAV);
494 if (op->op_private & OPpLVAL_INTRO)
496 if (op->op_flags & OPf_REF) {
503 if (GIMME == G_ARRAY) {
504 I32 maxarg = AvFILL(av) + 1;
506 Copy(AvARRAY(av), SP+1, maxarg, SV*);
511 I32 maxarg = AvFILL(av) + 1;
525 if (SvTYPE(hv) != SVt_PVHV && SvTYPE(hv) != SVt_PVAV)
526 DIE("Not a HASH reference");
527 if (op->op_flags & OPf_REF) {
533 if (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) {
535 if (op->op_flags & OPf_REF) {
543 if (SvTYPE(sv) != SVt_PVGV) {
546 if (SvGMAGICAL(sv)) {
552 if (op->op_flags & OPf_REF ||
553 op->op_private & HINT_STRICT_REFS)
554 DIE(no_usym, "a HASH");
557 if (GIMME == G_ARRAY) {
564 if (op->op_private & HINT_STRICT_REFS)
565 DIE(no_symref, sym, "a HASH");
566 gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVHV);
571 if (op->op_private & OPpLVAL_INTRO)
573 if (op->op_flags & OPf_REF) {
580 if (GIMME == G_ARRAY) { /* array wanted */
586 /* This bit is OK even when hv is really an AV */
588 sv_setpvf(TARG, "%ld/%ld",
589 (long)HvFILL(hv), (long)HvMAX(hv) + 1);
601 SV **lastlelem = stack_sp;
602 SV **lastrelem = stack_base + POPMARK;
603 SV **firstrelem = stack_base + POPMARK + 1;
604 SV **firstlelem = lastrelem + 1;
617 delaymagic = DM_DELAY; /* catch simultaneous items */
619 /* If there's a common identifier on both sides we have to take
620 * special care that assigning the identifier on the left doesn't
621 * clobber a value on the right that's used later in the list.
623 if (op->op_private & OPpASSIGN_COMMON) {
624 for (relem = firstrelem; relem <= lastrelem; relem++) {
627 TAINT_NOT; /* Each item is independent */
628 *relem = sv_mortalcopy(sv);
637 while (lelem <= lastlelem) {
638 TAINT_NOT; /* Each item stands on its own, taintwise. */
640 switch (SvTYPE(sv)) {
643 magic = SvMAGICAL(ary) != 0;
646 av_extend(ary, lastrelem - relem);
648 while (relem <= lastrelem) { /* gobble up all the rest */
654 didstore = av_store(ary,i++,sv);
667 magic = SvMAGICAL(hash) != 0;
670 while (relem < lastrelem) { /* gobble up all the rest */
676 sv = &sv_no, relem++;
677 tmpstr = NEWSV(29,0);
679 sv_setsv(tmpstr,*relem); /* value */
681 didstore = hv_store_ent(hash,sv,tmpstr,0);
685 SvREFCNT_dec(tmpstr);
689 if (relem == lastrelem)
690 warn("Odd number of elements in hash list");
694 if (SvTHINKFIRST(sv)) {
695 if (SvREADONLY(sv) && curcop != &compiling) {
696 if (sv != &sv_undef && sv != &sv_yes && sv != &sv_no)
698 if (relem <= lastrelem)
705 if (relem <= lastrelem) {
706 sv_setsv(sv, *relem);
710 sv_setsv(sv, &sv_undef);
715 if (delaymagic & ~DM_DELAY) {
716 if (delaymagic & DM_UID) {
718 (void)setresuid(uid,euid,(Uid_t)-1);
721 (void)setreuid(uid,euid);
724 if ((delaymagic & DM_UID) == DM_RUID) {
726 delaymagic &= ~DM_RUID;
728 # endif /* HAS_SETRUID */
730 if ((delaymagic & DM_UID) == DM_EUID) {
732 delaymagic &= ~DM_EUID;
734 # endif /* HAS_SETEUID */
735 if (delaymagic & DM_UID) {
737 DIE("No setreuid available");
740 # endif /* HAS_SETREUID */
741 #endif /* HAS_SETRESUID */
743 euid = (int)geteuid();
745 if (delaymagic & DM_GID) {
747 (void)setresgid(gid,egid,(Gid_t)-1);
750 (void)setregid(gid,egid);
753 if ((delaymagic & DM_GID) == DM_RGID) {
755 delaymagic &= ~DM_RGID;
757 # endif /* HAS_SETRGID */
759 if ((delaymagic & DM_GID) == DM_EGID) {
761 delaymagic &= ~DM_EGID;
763 # endif /* HAS_SETEGID */
764 if (delaymagic & DM_GID) {
766 DIE("No setregid available");
769 # endif /* HAS_SETREGID */
770 #endif /* HAS_SETRESGID */
772 egid = (int)getegid();
774 tainting |= (uid && (euid != uid || egid != gid));
781 else if (gimme == G_SCALAR) {
784 SETi(lastrelem - firstrelem + 1);
790 SP = firstrelem + (lastlelem - firstlelem);
791 lelem = firstlelem + (relem - firstrelem);
793 *relem++ = (lelem <= lastlelem) ? *lelem++ : &sv_undef;
801 register PMOP *pm = cPMOP;
808 register REGEXP *rx = pm->op_pmregexp;
812 I32 oldsave = savestack_ix;
813 I32 update_minmatch = 1;
815 if (op->op_flags & OPf_STACKED)
824 DIE("panic: do_match");
827 if (pm->op_pmflags & PMf_USED) {
828 if (gimme == G_ARRAY)
833 if (!rx->prelen && curpm) {
835 rx = pm->op_pmregexp;
838 if (global = pm->op_pmflags & PMf_GLOBAL) {
840 if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) {
841 MAGIC* mg = mg_find(TARG, 'g');
842 if (mg && mg->mg_len >= 0) {
843 rx->endp[0] = rx->startp[0] = s + mg->mg_len;
844 minmatch = (mg->mg_flags & MGf_MINMATCH);
849 if (!rx->nparens && !global)
850 gimme = G_SCALAR; /* accidental array context? */
851 safebase = (((gimme == G_ARRAY) || global || !rx->nparens)
853 if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) {
855 multiline = pm->op_pmflags & PMf_MULTILINE;
859 if (global && rx->startp[0]) {
861 if ((s + rx->minlen) > strend)
863 if (update_minmatch++)
864 minmatch = (s == rx->startp[0]);
866 if (pm->op_pmshort) {
867 if (pm->op_pmflags & PMf_SCANFIRST) {
868 if (SvSCREAM(TARG)) {
869 if (screamfirst[BmRARE(pm->op_pmshort)] < 0)
871 else if (!(s = screaminstr(TARG, pm->op_pmshort)))
873 else if (pm->op_pmflags & PMf_ALL)
876 else if (!(s = fbm_instr((unsigned char*)s,
877 (unsigned char*)strend, pm->op_pmshort)))
879 else if (pm->op_pmflags & PMf_ALL)
881 if (s && rx->regback >= 0) {
882 ++BmUSEFUL(pm->op_pmshort);
890 else if (!multiline) {
891 if (*SvPVX(pm->op_pmshort) != *s
892 || (pm->op_pmslen > 1
893 && memNE(SvPVX(pm->op_pmshort), s, pm->op_pmslen)))
896 if (!rx->naughty && --BmUSEFUL(pm->op_pmshort) < 0) {
897 SvREFCNT_dec(pm->op_pmshort);
898 pm->op_pmshort = Nullsv; /* opt is being useless */
901 if (pregexec(rx, s, strend, truebase, minmatch,
902 SvSCREAM(TARG) ? TARG : Nullsv, safebase))
905 if (pm->op_pmflags & PMf_ONCE)
906 pm->op_pmflags |= PMf_USED;
914 TAINT_IF(rx->exec_tainted);
915 if (gimme == G_ARRAY) {
919 if (global && !iters)
923 EXTEND(SP, iters + i);
924 EXTEND_MORTAL(iters + i);
925 for (i = !i; i <= iters; i++) {
926 PUSHs(sv_newmortal());
928 if ((s = rx->startp[i]) && rx->endp[i] ) {
929 len = rx->endp[i] - s;
930 sv_setpvn(*SP, s, len);
934 truebase = rx->subbeg;
936 if (rx->startp[0] && rx->startp[0] == rx->endp[0])
940 LEAVE_SCOPE(oldsave);
946 if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG))
947 mg = mg_find(TARG, 'g');
949 sv_magic(TARG, (SV*)0, 'g', Nullch, 0);
950 mg = mg_find(TARG, 'g');
953 mg->mg_len = rx->endp[0] - rx->subbeg;
954 if (rx->startp[0] == rx->endp[0])
955 mg->mg_flags |= MGf_MINMATCH;
957 mg->mg_flags &= ~MGf_MINMATCH;
960 LEAVE_SCOPE(oldsave);
965 TAINT_IF(rx->exec_tainted);
966 ++BmUSEFUL(pm->op_pmshort);
968 if (pm->op_pmflags & PMf_ONCE)
969 pm->op_pmflags |= PMf_USED;
970 Safefree(rx->subbase);
971 rx->subbase = Nullch;
973 rx->subbeg = truebase;
976 rx->endp[0] = s + SvCUR(pm->op_pmshort);
982 tmps = rx->subbase = savepvn(t, strend-t);
984 rx->subend = tmps + (strend-t);
985 tmps = rx->startp[0] = tmps + (s - t);
986 rx->endp[0] = tmps + SvCUR(pm->op_pmshort);
988 LEAVE_SCOPE(oldsave);
993 ++BmUSEFUL(pm->op_pmshort);
996 if (global && !(pm->op_pmflags & PMf_CONTINUE)) {
997 if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) {
998 MAGIC* mg = mg_find(TARG, 'g');
1003 LEAVE_SCOPE(oldsave);
1004 if (gimme == G_ARRAY)
1013 dSP; dTARGETSTACKED;
1018 register IO *io = GvIO(last_in_gv);
1019 register I32 type = op->op_type;
1020 I32 gimme = GIMME_V;
1023 if (SvMAGICAL(last_in_gv) && (mg = mg_find((SV*)last_in_gv, 'q'))) {
1028 perl_call_method("READLINE", gimme);
1031 if (gimme == G_SCALAR)
1032 SvSetMagicSV_nosteal(TARG, TOPs);
1039 if (IoFLAGS(io) & IOf_ARGV) {
1040 if (IoFLAGS(io) & IOf_START) {
1041 IoFLAGS(io) &= ~IOf_START;
1043 if (av_len(GvAVn(last_in_gv)) < 0) {
1044 SV *tmpstr = newSVpv("-", 1); /* assume stdin */
1045 av_push(GvAVn(last_in_gv), tmpstr);
1048 fp = nextargv(last_in_gv);
1049 if (!fp) { /* Note: fp != IoIFP(io) */
1050 (void)do_close(last_in_gv, FALSE); /* now it does*/
1051 IoFLAGS(io) |= IOf_START;
1054 else if (type == OP_GLOB) {
1055 SV *tmpcmd = NEWSV(55, 0);
1059 #ifdef VMS /* expand the wildcards right here, rather than opening a pipe, */
1060 /* since spawning off a process is a real performance hit */
1062 #include <descrip.h>
1063 #include <lib$routines.h>
1066 char rslt[NAM$C_MAXRSS+1+sizeof(unsigned short int)] = {'\0','\0'};
1067 char vmsspec[NAM$C_MAXRSS+1];
1068 char *rstr = rslt + sizeof(unsigned short int), *begin, *end, *cp;
1069 char tmpfnam[L_tmpnam] = "SYS$SCRATCH:";
1070 $DESCRIPTOR(dfltdsc,"SYS$DISK:[]*.*;");
1073 struct dsc$descriptor_s wilddsc
1074 = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0};
1075 struct dsc$descriptor_vs rsdsc
1076 = {sizeof rslt, DSC$K_DTYPE_VT, DSC$K_CLASS_VS, rslt};
1077 unsigned long int cxt = 0, sts = 0, ok = 1, hasdir = 0, hasver = 0, isunix = 0;
1079 /* We could find out if there's an explicit dev/dir or version
1080 by peeking into lib$find_file's internal context at
1081 ((struct NAM *)((struct FAB *)cxt)->fab$l_nam)->nam$l_fnb
1082 but that's unsupported, so I don't want to do it now and
1083 have it bite someone in the future. */
1084 strcat(tmpfnam,tmpnam(NULL));
1085 cp = SvPV(tmpglob,i);
1087 if (cp[i] == ';') hasver = 1;
1089 if (sts) hasver = 1;
1093 hasdir = isunix = 1;
1096 if (cp[i] == ']' || cp[i] == '>' || cp[i] == ':') {
1101 if ((tmpfp = PerlIO_open(tmpfnam,"w+","fop=dlt")) != NULL) {
1102 ok = ((wilddsc.dsc$a_pointer = tovmsspec(SvPVX(tmpglob),vmsspec)) != NULL);
1103 if (ok) wilddsc.dsc$w_length = (unsigned short int) strlen(wilddsc.dsc$a_pointer);
1104 while (ok && ((sts = lib$find_file(&wilddsc,&rsdsc,&cxt,
1105 &dfltdsc,NULL,NULL,NULL))&1)) {
1106 end = rstr + (unsigned long int) *rslt;
1107 if (!hasver) while (*end != ';') end--;
1108 *(end++) = '\n'; *end = '\0';
1109 for (cp = rstr; *cp; cp++) *cp = _tolower(*cp);
1111 if (isunix) trim_unixpath(rstr,SvPVX(tmpglob),1);
1116 while (*(--begin) != ']' && *begin != '>') ;
1119 ok = (PerlIO_puts(tmpfp,begin) != EOF);
1121 if (cxt) (void)lib$find_file_end(&cxt);
1122 if (ok && sts != RMS$_NMF &&
1123 sts != RMS$_DNF && sts != RMS$_FNF) ok = 0;
1126 SETERRNO((sts == RMS$_SYN ? EINVAL : EVMSERR),sts);
1128 PerlIO_close(tmpfp);
1132 PerlIO_rewind(tmpfp);
1134 IoIFP(io) = fp = tmpfp;
1135 IoFLAGS(io) &= ~IOf_UNTAINT; /* maybe redundant */
1142 sv_setpv(tmpcmd, "for a in ");
1143 sv_catsv(tmpcmd, tmpglob);
1144 sv_catpv(tmpcmd, "; do echo \"$a\\0\\c\"; done |");
1146 sv_setpv(tmpcmd, "perlglob ");
1147 sv_catsv(tmpcmd, tmpglob);
1148 sv_catpv(tmpcmd, " |");
1152 sv_setpvn(tmpcmd, cshname, cshlen);
1153 sv_catpv(tmpcmd, " -cf 'set nonomatch; glob ");
1154 sv_catsv(tmpcmd, tmpglob);
1155 sv_catpv(tmpcmd, "' 2>/dev/null |");
1157 sv_setpv(tmpcmd, "echo ");
1158 sv_catsv(tmpcmd, tmpglob);
1160 sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\012\\012\\012\\012'|");
1162 sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\n\\n\\n\\n'|");
1165 #endif /* !DOSISH */
1166 (void)do_open(last_in_gv, SvPVX(tmpcmd), SvCUR(tmpcmd),
1167 FALSE, 0, 0, Nullfp);
1173 else if (type == OP_GLOB)
1177 if (dowarn && io && !(IoFLAGS(io) & IOf_START))
1178 warn("Read on closed filehandle <%s>", GvENAME(last_in_gv));
1179 if (gimme == G_SCALAR) {
1180 (void)SvOK_off(TARG);
1185 if (gimme == G_SCALAR) {
1189 (void)SvUPGRADE(sv, SVt_PV);
1190 tmplen = SvLEN(sv); /* remember if already alloced */
1192 Sv_Grow(sv, 80); /* try short-buffering it */
1193 if (type == OP_RCATLINE)
1199 sv = sv_2mortal(NEWSV(57, 80));
1203 if (!sv_gets(sv, fp, offset)) {
1204 PerlIO_clearerr(fp);
1205 if (IoFLAGS(io) & IOf_ARGV) {
1206 fp = nextargv(last_in_gv);
1209 (void)do_close(last_in_gv, FALSE);
1210 IoFLAGS(io) |= IOf_START;
1212 else if (type == OP_GLOB) {
1213 if (do_close(last_in_gv, FALSE) & ~0xFF)
1214 warn("internal error: glob failed");
1216 if (gimme == G_SCALAR) {
1217 (void)SvOK_off(TARG);
1222 /* This should not be marked tainted if the fp is marked clean */
1223 if (!(IoFLAGS(io) & IOf_UNTAINT)) {
1230 if (type == OP_GLOB) {
1233 if (SvCUR(sv) > 0 && SvCUR(rs) > 0) {
1234 tmps = SvEND(sv) - 1;
1235 if (*tmps == *SvPVX(rs)) {
1240 for (tmps = SvPVX(sv); *tmps; tmps++)
1241 if (!isALPHA(*tmps) && !isDIGIT(*tmps) &&
1242 strchr("$&*(){}[]'\";\\|?<>~`", *tmps))
1244 if (*tmps && Stat(SvPVX(sv), &statbuf) < 0) {
1245 (void)POPs; /* Unmatched wildcard? Chuck it... */
1249 if (gimme == G_ARRAY) {
1250 if (SvLEN(sv) - SvCUR(sv) > 20) {
1251 SvLEN_set(sv, SvCUR(sv)+1);
1252 Renew(SvPVX(sv), SvLEN(sv), char);
1254 sv = sv_2mortal(NEWSV(58, 80));
1257 else if (gimme == G_SCALAR && !tmplen && SvLEN(sv) - SvCUR(sv) > 80) {
1258 /* try to reclaim a bit of scalar space (only on 1st alloc) */
1262 SvLEN_set(sv, SvCUR(sv)+40); /* allow some slop */
1263 Renew(SvPVX(sv), SvLEN(sv), char);
1272 register CONTEXT *cx;
1273 I32 gimme = OP_GIMME(op, -1);
1276 if (cxstack_ix >= 0)
1277 gimme = cxstack[cxstack_ix].blk_gimme;
1285 PUSHBLOCK(cx, CXt_BLOCK, sp);
1297 U32 lval = op->op_flags & OPf_MOD;
1298 U32 defer = op->op_private & OPpLVAL_DEFER;
1300 if (SvTYPE(hv) == SVt_PVHV) {
1301 he = hv_fetch_ent(hv, keysv, lval && !defer, 0);
1302 svp = he ? &HeVAL(he) : 0;
1304 else if (SvTYPE(hv) == SVt_PVAV) {
1305 svp = avhv_fetch_ent((AV*)hv, keysv, lval && !defer, 0);
1311 if (!svp || *svp == &sv_undef) {
1315 DIE(no_helem, SvPV(keysv, na));
1316 lv = sv_newmortal();
1317 sv_upgrade(lv, SVt_PVLV);
1319 sv_magic(lv, key2 = newSVsv(keysv), 'y', Nullch, 0);
1320 SvREFCNT_dec(key2); /* sv_magic() increments refcount */
1321 LvTARG(lv) = SvREFCNT_inc(hv);
1326 if (op->op_private & OPpLVAL_INTRO) {
1327 if (HvNAME(hv) && isGV(*svp))
1328 save_gp((GV*)*svp, !(op->op_flags & OPf_SPECIAL));
1332 else if (op->op_private & OPpDEREF)
1333 vivify_ref(*svp, op->op_private & OPpDEREF);
1335 PUSHs(svp ? *svp : &sv_undef);
1342 register CONTEXT *cx;
1348 if (op->op_flags & OPf_SPECIAL) {
1349 cx = &cxstack[cxstack_ix];
1350 cx->blk_oldpm = curpm; /* fake block should preserve $1 et al */
1355 gimme = OP_GIMME(op, -1);
1357 if (cxstack_ix >= 0)
1358 gimme = cxstack[cxstack_ix].blk_gimme;
1364 if (gimme == G_VOID)
1366 else if (gimme == G_SCALAR) {
1369 if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP))
1372 *MARK = sv_mortalcopy(TOPs);
1379 else if (gimme == G_ARRAY) {
1380 /* in case LEAVE wipes old return values */
1381 for (mark = newsp + 1; mark <= SP; mark++) {
1382 if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) {
1383 *mark = sv_mortalcopy(*mark);
1384 TAINT_NOT; /* Each item is independent */
1388 curpm = newpm; /* Don't pop $1 et al till now */
1398 register CONTEXT *cx;
1403 cx = &cxstack[cxstack_ix];
1404 if (cx->cx_type != CXt_LOOP)
1405 DIE("panic: pp_iter");
1407 av = cx->blk_loop.iterary;
1408 if (cx->blk_loop.iterix >= (av == curstack ? cx->blk_oldsp : AvFILL(av)))
1411 SvREFCNT_dec(*cx->blk_loop.itervar);
1413 if (sv = AvARRAY(av)[++cx->blk_loop.iterix])
1417 if (av != curstack && SvIMMORTAL(sv)) {
1418 SV *lv = cx->blk_loop.iterlval;
1419 if (lv && SvREFCNT(lv) > 1) {
1424 SvREFCNT_dec(LvTARG(lv));
1426 lv = cx->blk_loop.iterlval = NEWSV(26, 0);
1427 sv_upgrade(lv, SVt_PVLV);
1429 sv_magic(lv, Nullsv, 'y', Nullch, 0);
1431 LvTARG(lv) = SvREFCNT_inc(av);
1432 LvTARGOFF(lv) = cx->blk_loop.iterix;
1437 *cx->blk_loop.itervar = SvREFCNT_inc(sv);
1444 register PMOP *pm = cPMOP;
1460 register REGEXP *rx = pm->op_pmregexp;
1462 int force_on_match = 0;
1463 I32 oldsave = savestack_ix;
1465 /* known replacement string? */
1466 dstr = (pm->op_pmflags & PMf_CONST) ? POPs : Nullsv;
1467 if (op->op_flags & OPf_STACKED)
1473 if (SvREADONLY(TARG)
1474 || (SvTYPE(TARG) > SVt_PVLV
1475 && !(SvTYPE(TARG) == SVt_PVGV && SvFAKE(TARG))))
1477 s = SvPV(TARG, len);
1478 if (!SvPOKp(TARG) || SvTYPE(TARG) == SVt_PVGV)
1484 DIE("panic: do_subst");
1487 maxiters = (strend - s) + 10;
1489 if (!rx->prelen && curpm) {
1491 rx = pm->op_pmregexp;
1493 safebase = (!rx->nparens && !sawampersand);
1494 if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) {
1496 multiline = pm->op_pmflags & PMf_MULTILINE;
1499 if (pm->op_pmshort) {
1500 if (pm->op_pmflags & PMf_SCANFIRST) {
1501 if (SvSCREAM(TARG)) {
1502 if (screamfirst[BmRARE(pm->op_pmshort)] < 0)
1504 else if (!(s = screaminstr(TARG, pm->op_pmshort)))
1507 else if (!(s = fbm_instr((unsigned char*)s, (unsigned char*)strend,
1510 if (s && rx->regback >= 0) {
1511 ++BmUSEFUL(pm->op_pmshort);
1519 else if (!multiline) {
1520 if (*SvPVX(pm->op_pmshort) != *s
1521 || (pm->op_pmslen > 1
1522 && memNE(SvPVX(pm->op_pmshort), s, pm->op_pmslen)))
1525 if (!rx->naughty && --BmUSEFUL(pm->op_pmshort) < 0) {
1526 SvREFCNT_dec(pm->op_pmshort);
1527 pm->op_pmshort = Nullsv; /* opt is being useless */
1531 /* only replace once? */
1532 once = !(rpm->op_pmflags & PMf_GLOBAL);
1534 /* known replacement string? */
1535 c = dstr ? SvPV(dstr, clen) : Nullch;
1537 /* can do inplace substitution? */
1538 if (c && clen <= rx->minlen && safebase) {
1539 if (! pregexec(rx, s, strend, orig, 0,
1540 SvSCREAM(TARG) ? TARG : Nullsv, safebase)) {
1542 LEAVE_SCOPE(oldsave);
1545 if (force_on_match) {
1547 s = SvPV_force(TARG, len);
1552 SvSCREAM_off(TARG); /* disable possible screamer */
1554 rxtainted = rx->exec_tainted;
1558 if (m - s > strend - d) { /* faster to shorten from end */
1560 Copy(c, m, clen, char);
1565 Move(d, m, i, char);
1569 SvCUR_set(TARG, m - s);
1572 else if (i = m - s) { /* faster from front */
1580 Copy(c, m, clen, char);
1585 Copy(c, d, clen, char);
1590 TAINT_IF(rxtainted);
1596 if (iters++ > maxiters)
1597 DIE("Substitution loop");
1598 rxtainted |= rx->exec_tainted;
1603 Move(s, d, i, char);
1607 Copy(c, d, clen, char);
1611 } while (pregexec(rx, s, strend, orig, s == m,
1612 Nullsv, TRUE)); /* don't match same null twice */
1615 SvCUR_set(TARG, d - SvPVX(TARG) + i);
1616 Move(s, d, i+1, char); /* include the NUL */
1618 TAINT_IF(rxtainted);
1619 PUSHs(sv_2mortal(newSViv((I32)iters)));
1621 (void)SvPOK_only(TARG);
1624 LEAVE_SCOPE(oldsave);
1628 if (pregexec(rx, s, strend, orig, 0,
1629 SvSCREAM(TARG) ? TARG : Nullsv, safebase)) {
1630 if (force_on_match) {
1632 s = SvPV_force(TARG, len);
1635 rxtainted = rx->exec_tainted;
1636 dstr = NEWSV(25, sv_len(TARG));
1637 sv_setpvn(dstr, m, s-m);
1640 register CONTEXT *cx;
1642 RETURNOP(cPMOP->op_pmreplroot);
1645 if (iters++ > maxiters)
1646 DIE("Substitution loop");
1647 rxtainted |= rx->exec_tainted;
1648 if (rx->subbase && rx->subbase != orig) {
1653 strend = s + (strend - m);
1656 sv_catpvn(dstr, s, m-s);
1659 sv_catpvn(dstr, c, clen);
1662 } while (pregexec(rx, s, strend, orig, s == m, Nullsv, safebase));
1663 sv_catpvn(dstr, s, strend - s);
1665 TAINT_IF(rxtainted);
1667 (void)SvOOK_off(TARG);
1668 Safefree(SvPVX(TARG));
1669 SvPVX(TARG) = SvPVX(dstr);
1670 SvCUR_set(TARG, SvCUR(dstr));
1671 SvLEN_set(TARG, SvLEN(dstr));
1675 (void)SvPOK_only(TARG);
1678 PUSHs(sv_2mortal(newSViv((I32)iters)));
1679 LEAVE_SCOPE(oldsave);
1685 ++BmUSEFUL(pm->op_pmshort);
1689 LEAVE_SCOPE(oldsave);
1698 stack_base[markstack_ptr[-1]++] = stack_base[*markstack_ptr];
1700 LEAVE; /* exit inner scope */
1703 if (stack_base + *markstack_ptr > sp) {
1705 I32 gimme = GIMME_V;
1707 LEAVE; /* exit outer scope */
1708 (void)POPMARK; /* pop src */
1709 items = --*markstack_ptr - markstack_ptr[-1];
1710 (void)POPMARK; /* pop dst */
1711 SP = stack_base + POPMARK; /* pop original mark */
1712 if (gimme == G_SCALAR) {
1716 else if (gimme == G_ARRAY)
1723 ENTER; /* enter inner scope */
1726 src = stack_base[*markstack_ptr];
1730 RETURNOP(cLOGOP->op_other);
1741 register CONTEXT *cx;
1742 struct block_sub cxsub;
1745 POPSUB1(cx); /* Delay POPSUB2 until stack values are safe */
1748 if (gimme == G_SCALAR) {
1751 *MARK = SvTEMP(TOPs) ? TOPs : sv_mortalcopy(TOPs);
1758 else if (gimme == G_ARRAY) {
1759 for (MARK = newsp + 1; MARK <= SP; MARK++) {
1760 if (!SvTEMP(*MARK)) {
1761 *MARK = sv_mortalcopy(*MARK);
1762 TAINT_NOT; /* Each item is independent */
1768 POPSUB2(); /* Stack values are safe: release CV and @_ ... */
1769 curpm = newpm; /* ... and pop $1 et al */
1772 return pop_return();
1787 if ( (CvFLAGS(cv) & (CVf_ANON | CVf_CLONED))
1788 || strEQ(GvNAME(gv), "END")
1789 || ((GvCV(gv) != cv) && /* Could be imported, and old sub redefined. */
1790 !( (SvTYPE(oldsv) == SVt_PVGV) && (GvCV((GV*)oldsv) == cv)
1791 && (gv = (GV*)oldsv) ))) {
1792 /* Use GV from the stack as a fallback. */
1793 /* GV is potentially non-unique, or contain different CV. */
1794 sv_setsv(sv, newRV((SV*)cv));
1797 gv_efullname3(sv, gv, Nullch);
1811 register CONTEXT *cx;
1813 bool hasargs = (op->op_flags & OPf_STACKED) != 0;
1816 DIE("Not a CODE reference");
1817 switch (SvTYPE(sv)) {
1822 if (sv == &sv_yes) /* unfound import, ignore */
1824 if (SvGMAGICAL(sv)) {
1826 sym = SvPOKp(sv) ? SvPVX(sv) : Nullch;
1831 DIE(no_usym, "a subroutine");
1832 if (op->op_private & HINT_STRICT_REFS)
1833 DIE(no_symref, sym, "a subroutine");
1834 cv = perl_get_cv(sym, TRUE);
1838 if (SvTYPE(cv) == SVt_PVCV)
1843 DIE("Not a CODE reference");
1848 if (!(cv = GvCVu((GV*)sv)))
1849 cv = sv_2cv(sv, &stash, &gv, TRUE);
1858 DIE("Not a CODE reference");
1860 if (!CvROOT(cv) && !CvXSUB(cv)) {
1864 /* anonymous or undef'd function leaves us no recourse */
1865 if (CvANON(cv) || !(gv = CvGV(cv)))
1866 DIE("Undefined subroutine called");
1867 /* autoloaded stub? */
1868 if (cv != GvCV(gv)) {
1872 /* should call AUTOLOAD now? */
1873 if ((autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv),
1880 subname = sv_newmortal();
1881 gv_efullname3(subname, gv, Nullch);
1882 DIE("Undefined subroutine &%s called", SvPVX(subname));
1886 if ((op->op_private & OPpENTERSUB_DB) && GvCV(DBsub) && !CvNODEBUG(cv))
1887 cv = get_db_sub(sv);
1889 DIE("No DBsub routine");
1893 * First we need to check if the sub or method requires locking.
1894 * If so, we gain a lock on the CV or the first argument, as
1895 * appropriate. This has to be inline because for FAKE_THREADS,
1896 * COND_WAIT inlines code to reschedule by returning a new op.
1898 MUTEX_LOCK(CvMUTEXP(cv));
1899 if (CvFLAGS(cv) & CVf_LOCKED) {
1901 if (CvFLAGS(cv) & CVf_METHOD) {
1902 if (SP > stack_base + TOPMARK)
1903 sv = *(stack_base + TOPMARK + 1);
1905 MUTEX_UNLOCK(CvMUTEXP(cv));
1906 croak("no argument for locked method call");
1914 MUTEX_UNLOCK(CvMUTEXP(cv));
1915 mg = condpair_magic(sv);
1916 MUTEX_LOCK(MgMUTEXP(mg));
1917 if (MgOWNER(mg) == thr)
1918 MUTEX_UNLOCK(MgMUTEXP(mg));
1921 COND_WAIT(MgOWNERCONDP(mg), MgMUTEXP(mg));
1923 DEBUG_L(PerlIO_printf(PerlIO_stderr(), "%p: pp_entersub lock %p\n",
1925 MUTEX_UNLOCK(MgMUTEXP(mg));
1926 save_destructor(unlock_condpair, sv);
1928 MUTEX_LOCK(CvMUTEXP(cv));
1931 * Now we have permission to enter the sub, we must distinguish
1932 * four cases. (0) It's an XSUB (in which case we don't care
1933 * about ownership); (1) it's ours already (and we're recursing);
1934 * (2) it's free (but we may already be using a cached clone);
1935 * (3) another thread owns it. Case (1) is easy: we just use it.
1936 * Case (2) means we look for a clone--if we have one, use it
1937 * otherwise grab ownership of cv. Case (3) means we look for a
1938 * clone (for non-XSUBs) and have to create one if we don't
1940 * Why look for a clone in case (2) when we could just grab
1941 * ownership of cv straight away? Well, we could be recursing,
1942 * i.e. we originally tried to enter cv while another thread
1943 * owned it (hence we used a clone) but it has been freed up
1944 * and we're now recursing into it. It may or may not be "better"
1945 * to use the clone but at least CvDEPTH can be trusted.
1947 if (CvOWNER(cv) == thr || CvXSUB(cv))
1948 MUTEX_UNLOCK(CvMUTEXP(cv));
1950 /* Case (2) or (3) */
1954 * XXX Might it be better to release CvMUTEXP(cv) while we
1955 * do the hv_fetch? We might find someone has pinched it
1956 * when we look again, in which case we would be in case
1957 * (3) instead of (2) so we'd have to clone. Would the fact
1958 * that we released the mutex more quickly make up for this?
1960 svp = hv_fetch(cvcache, (char *)cv, sizeof(cv), FALSE);
1962 /* We already have a clone to use */
1963 MUTEX_UNLOCK(CvMUTEXP(cv));
1965 DEBUG_L(PerlIO_printf(PerlIO_stderr(),
1966 "entersub: %p already has clone %p:%s\n",
1967 thr, cv, SvPEEK((SV*)cv)));
1970 if (CvDEPTH(cv) == 0)
1971 SAVEDESTRUCTOR(unset_cvowner, (void*) cv);
1974 /* (2) => grab ownership of cv. (3) => make clone */
1978 MUTEX_UNLOCK(CvMUTEXP(cv));
1979 DEBUG_L(PerlIO_printf(PerlIO_stderr(),
1980 "entersub: %p grabbing %p:%s in stash %s\n",
1981 thr, cv, SvPEEK((SV*)cv), CvSTASH(cv) ?
1982 HvNAME(CvSTASH(cv)) : "(none)"));
1984 /* Make a new clone. */
1986 SvREFCNT_inc(cv); /* don't let it vanish from under us */
1987 MUTEX_UNLOCK(CvMUTEXP(cv));
1988 DEBUG_L((PerlIO_printf(PerlIO_stderr(),
1989 "entersub: %p cloning %p:%s\n",
1990 thr, cv, SvPEEK((SV*)cv))));
1992 * We're creating a new clone so there's no race
1993 * between the original MUTEX_UNLOCK and the
1994 * SvREFCNT_inc since no one will be trying to undef
1995 * it out from underneath us. At least, I don't think
1998 clonecv = cv_clone(cv);
1999 SvREFCNT_dec(cv); /* finished with this */
2000 hv_store(cvcache, (char*)cv, sizeof(cv), (SV*)clonecv,0);
2001 CvOWNER(clonecv) = thr;
2005 DEBUG_L(if (CvDEPTH(cv) != 0)
2006 PerlIO_printf(PerlIO_stderr(), "depth %ld != 0\n",
2008 SAVEDESTRUCTOR(unset_cvowner, (void*) cv);
2011 #endif /* USE_THREADS */
2016 if (CvOLDSTYLE(cv)) {
2017 I32 (*fp3)_((int,int,int));
2019 register I32 items = SP - MARK;
2020 /* We dont worry to copy from @_. */
2025 stack_sp = mark + 1;
2026 fp3 = (I32(*)_((int,int,int)))CvXSUB(cv);
2027 items = (*fp3)(CvXSUBANY(cv).any_i32,
2028 MARK - stack_base + 1,
2030 stack_sp = stack_base + items;
2033 I32 markix = TOPMARK;
2038 /* Need to copy @_ to stack. Alternative may be to
2039 * switch stack to @_, and copy return values
2040 * back. This would allow popping @_ in XSUB, e.g.. XXXX */
2044 av = (AV*)curpad[0];
2047 #endif /* USE_THREADS */
2048 items = AvFILL(av) + 1;
2051 /* Mark is at the end of the stack. */
2053 Copy(AvARRAY(av), sp + 1, items, SV*);
2058 if (curcopdb) { /* We assume that the first
2059 XSUB in &DB::sub is the
2065 /* Do we need to open block here? XXXX */
2066 (void)(*CvXSUB(cv))(cv);
2068 /* Enforce some sanity in scalar context. */
2069 if (gimme == G_SCALAR && ++markix != stack_sp - stack_base ) {
2070 if (markix > stack_sp - stack_base)
2071 *(stack_base + markix) = &sv_undef;
2073 *(stack_base + markix) = *stack_sp;
2074 stack_sp = stack_base + markix;
2082 register I32 items = SP - MARK;
2083 AV* padlist = CvPADLIST(cv);
2084 SV** svp = AvARRAY(padlist);
2085 push_return(op->op_next);
2086 PUSHBLOCK(cx, CXt_SUB, MARK);
2089 if (CvDEPTH(cv) < 2)
2090 (void)SvREFCNT_inc(cv);
2091 else { /* save temporaries on recursion? */
2092 if (CvDEPTH(cv) == 100 && dowarn
2093 && !(PERLDB_SUB && cv == GvCV(DBsub)))
2094 sub_crush_depth(cv);
2095 if (CvDEPTH(cv) > AvFILL(padlist)) {
2097 AV *newpad = newAV();
2098 SV **oldpad = AvARRAY(svp[CvDEPTH(cv)-1]);
2099 I32 ix = AvFILL((AV*)svp[1]);
2100 svp = AvARRAY(svp[0]);
2101 for ( ;ix > 0; ix--) {
2102 if (svp[ix] != &sv_undef) {
2103 char *name = SvPVX(svp[ix]);
2104 if ((SvFLAGS(svp[ix]) & SVf_FAKE) /* outer lexical? */
2105 || *name == '&') /* anonymous code? */
2107 av_store(newpad, ix, SvREFCNT_inc(oldpad[ix]));
2109 else { /* our own lexical */
2111 av_store(newpad, ix, sv = (SV*)newAV());
2112 else if (*name == '%')
2113 av_store(newpad, ix, sv = (SV*)newHV());
2115 av_store(newpad, ix, sv = NEWSV(0,0));
2120 av_store(newpad, ix, sv = NEWSV(0,0));
2124 av = newAV(); /* will be @_ */
2126 av_store(newpad, 0, (SV*)av);
2127 AvFLAGS(av) = AVf_REIFY;
2128 av_store(padlist, CvDEPTH(cv), (SV*)newpad);
2129 AvFILL(padlist) = CvDEPTH(cv);
2130 svp = AvARRAY(padlist);
2135 AV* av = (AV*)curpad[0];
2137 items = AvFILL(av) + 1;
2139 /* Mark is at the end of the stack. */
2141 Copy(AvARRAY(av), sp + 1, items, SV*);
2146 #endif /* USE_THREADS */
2148 curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]);
2151 #endif /* USE_THREADS */
2157 DEBUG_L(PerlIO_printf(PerlIO_stderr(),
2158 "%p entersub preparing @_\n", thr));
2160 av = (AV*)curpad[0];
2166 cx->blk_sub.savearray = GvAV(defgv);
2167 GvAV(defgv) = (AV*)SvREFCNT_inc(av);
2168 #endif /* USE_THREADS */
2169 cx->blk_sub.argarray = av;
2172 if (items > AvMAX(av) + 1) {
2174 if (AvARRAY(av) != ary) {
2175 AvMAX(av) += AvARRAY(av) - AvALLOC(av);
2176 SvPVX(av) = (char*)ary;
2178 if (items > AvMAX(av) + 1) {
2179 AvMAX(av) = items - 1;
2180 Renew(ary,items,SV*);
2182 SvPVX(av) = (char*)ary;
2185 Copy(MARK,AvARRAY(av),items,SV*);
2186 AvFILL(av) = items - 1;
2195 DEBUG_L(PerlIO_printf(PerlIO_stderr(),
2196 "%p entersub returning %p\n", thr, CvSTART(cv)));
2198 RETURNOP(CvSTART(cv));
2207 warn("Deep recursion on anonymous subroutine");
2209 SV* tmpstr = sv_newmortal();
2210 gv_efullname3(tmpstr, CvGV(cv), Nullch);
2211 warn("Deep recursion on subroutine \"%s\"", SvPVX(tmpstr));
2221 U32 lval = op->op_flags & OPf_MOD;
2222 U32 defer = (op->op_private & OPpLVAL_DEFER) && (elem > AvFILL(av));
2225 elem -= curcop->cop_arybase;
2226 if (SvTYPE(av) != SVt_PVAV)
2228 svp = av_fetch(av, elem, lval && !defer);
2230 if (!svp || *svp == &sv_undef) {
2233 DIE(no_aelem, elem);
2234 lv = sv_newmortal();
2235 sv_upgrade(lv, SVt_PVLV);
2237 sv_magic(lv, Nullsv, 'y', Nullch, 0);
2238 LvTARG(lv) = SvREFCNT_inc(av);
2239 LvTARGOFF(lv) = elem;
2244 if (op->op_private & OPpLVAL_INTRO)
2246 else if (op->op_private & OPpDEREF)
2247 vivify_ref(*svp, op->op_private & OPpDEREF);
2249 PUSHs(svp ? *svp : &sv_undef);
2254 vivify_ref(sv, to_what)
2263 if (SvTYPE(sv) < SVt_RV)
2264 sv_upgrade(sv, SVt_RV);
2265 else if (SvTYPE(sv) >= SVt_PV) {
2266 (void)SvOOK_off(sv);
2267 Safefree(SvPVX(sv));
2268 SvLEN(sv) = SvCUR(sv) = 0;
2272 SvRV(sv) = newSV(0);
2275 SvRV(sv) = (SV*)newAV();
2278 SvRV(sv) = (SV*)newHV();
2297 name = SvPV(TOPs, na);
2298 sv = *(stack_base + TOPMARK + 1);
2309 !(packname = SvPV(sv, packlen)) ||
2310 !(iogv = gv_fetchpv(packname, FALSE, SVt_PVIO)) ||
2311 !(ob=(SV*)GvIO(iogv)))
2313 if (!packname || !isIDFIRST(*packname))
2314 DIE("Can't call method \"%s\" without a package or object reference", name);
2315 stash = gv_stashpvn(packname, packlen, TRUE);
2318 *(stack_base + TOPMARK + 1) = sv_2mortal(newRV((SV*)iogv));
2321 if (!ob || !SvOBJECT(ob))
2322 DIE("Can't call method \"%s\" on unblessed reference", name);
2324 stash = SvSTASH(ob);
2327 gv = gv_fetchmethod(stash, name);
2333 for (p = name; *p; p++) {
2335 sep = p, leaf = p + 1;
2336 else if (*p == ':' && *(p + 1) == ':')
2337 sep = p, leaf = p + 2;
2339 if (!sep || ((sep - name) == 5 && strnEQ(name, "SUPER", 5))) {
2340 packname = HvNAME(sep ? curcop->cop_stash : stash);
2341 packlen = strlen(packname);
2345 packlen = sep - name;
2347 DIE("Can't locate object method \"%s\" via package \"%.*s\"",
2348 leaf, (int)packlen, packname);
2350 SETs(isGV(gv) ? (SV*)GvCV(gv) : (SV*)gv);