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(), "0x%lx unsetting CvOWNER of 0x%lx:%s\n",
34 (unsigned long)thr, (unsigned long)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_private & OPpLVAL_INTRO)
453 av = (AV*)save_svref((SV**)sv);
454 if (op->op_flags & OPf_REF) {
460 if (SvTYPE(sv) == SVt_PVAV) {
462 if (op->op_flags & OPf_REF) {
470 if (SvTYPE(sv) != SVt_PVGV) {
473 if (SvGMAGICAL(sv)) {
479 if (op->op_flags & OPf_REF ||
480 op->op_private & HINT_STRICT_REFS)
481 DIE(no_usym, "an ARRAY");
484 if (GIMME == G_ARRAY)
489 if (op->op_private & HINT_STRICT_REFS)
490 DIE(no_symref, sym, "an ARRAY");
491 gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVAV);
496 if (op->op_private & OPpLVAL_INTRO)
498 if (op->op_flags & OPf_REF) {
505 if (GIMME == G_ARRAY) {
506 I32 maxarg = AvFILL(av) + 1;
508 Copy(AvARRAY(av), SP+1, maxarg, SV*);
513 I32 maxarg = AvFILL(av) + 1;
527 if (SvTYPE(hv) != SVt_PVHV && SvTYPE(hv) != SVt_PVAV)
528 DIE("Not a HASH reference");
529 if (op->op_private & OPpLVAL_INTRO)
530 hv = (HV*)save_svref((SV**)sv);
531 if (op->op_flags & OPf_REF) {
537 if (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) {
539 if (op->op_flags & OPf_REF) {
547 if (SvTYPE(sv) != SVt_PVGV) {
550 if (SvGMAGICAL(sv)) {
556 if (op->op_flags & OPf_REF ||
557 op->op_private & HINT_STRICT_REFS)
558 DIE(no_usym, "a HASH");
561 if (GIMME == G_ARRAY) {
568 if (op->op_private & HINT_STRICT_REFS)
569 DIE(no_symref, sym, "a HASH");
570 gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVHV);
575 if (op->op_private & OPpLVAL_INTRO)
577 if (op->op_flags & OPf_REF) {
584 if (GIMME == G_ARRAY) { /* array wanted */
590 /* This bit is OK even when hv is really an AV */
592 sv_setpvf(TARG, "%ld/%ld",
593 (long)HvFILL(hv), (long)HvMAX(hv) + 1);
605 SV **lastlelem = stack_sp;
606 SV **lastrelem = stack_base + POPMARK;
607 SV **firstrelem = stack_base + POPMARK + 1;
608 SV **firstlelem = lastrelem + 1;
621 delaymagic = DM_DELAY; /* catch simultaneous items */
623 /* If there's a common identifier on both sides we have to take
624 * special care that assigning the identifier on the left doesn't
625 * clobber a value on the right that's used later in the list.
627 if (op->op_private & OPpASSIGN_COMMON) {
628 for (relem = firstrelem; relem <= lastrelem; relem++) {
631 TAINT_NOT; /* Each item is independent */
632 *relem = sv_mortalcopy(sv);
641 while (lelem <= lastlelem) {
642 TAINT_NOT; /* Each item stands on its own, taintwise. */
644 switch (SvTYPE(sv)) {
647 magic = SvMAGICAL(ary) != 0;
650 av_extend(ary, lastrelem - relem);
652 while (relem <= lastrelem) { /* gobble up all the rest */
658 didstore = av_store(ary,i++,sv);
671 magic = SvMAGICAL(hash) != 0;
674 while (relem < lastrelem) { /* gobble up all the rest */
680 sv = &sv_no, relem++;
681 tmpstr = NEWSV(29,0);
683 sv_setsv(tmpstr,*relem); /* value */
685 didstore = hv_store_ent(hash,sv,tmpstr,0);
689 SvREFCNT_dec(tmpstr);
693 if (relem == lastrelem)
694 warn("Odd number of elements in hash list");
698 if (SvTHINKFIRST(sv)) {
699 if (SvREADONLY(sv) && curcop != &compiling) {
700 if (sv != &sv_undef && sv != &sv_yes && sv != &sv_no)
702 if (relem <= lastrelem)
709 if (relem <= lastrelem) {
710 sv_setsv(sv, *relem);
714 sv_setsv(sv, &sv_undef);
719 if (delaymagic & ~DM_DELAY) {
720 if (delaymagic & DM_UID) {
722 (void)setresuid(uid,euid,(Uid_t)-1);
725 (void)setreuid(uid,euid);
728 if ((delaymagic & DM_UID) == DM_RUID) {
730 delaymagic &= ~DM_RUID;
732 # endif /* HAS_SETRUID */
734 if ((delaymagic & DM_UID) == DM_EUID) {
736 delaymagic &= ~DM_EUID;
738 # endif /* HAS_SETEUID */
739 if (delaymagic & DM_UID) {
741 DIE("No setreuid available");
744 # endif /* HAS_SETREUID */
745 #endif /* HAS_SETRESUID */
747 euid = (int)geteuid();
749 if (delaymagic & DM_GID) {
751 (void)setresgid(gid,egid,(Gid_t)-1);
754 (void)setregid(gid,egid);
757 if ((delaymagic & DM_GID) == DM_RGID) {
759 delaymagic &= ~DM_RGID;
761 # endif /* HAS_SETRGID */
763 if ((delaymagic & DM_GID) == DM_EGID) {
765 delaymagic &= ~DM_EGID;
767 # endif /* HAS_SETEGID */
768 if (delaymagic & DM_GID) {
770 DIE("No setregid available");
773 # endif /* HAS_SETREGID */
774 #endif /* HAS_SETRESGID */
776 egid = (int)getegid();
778 tainting |= (uid && (euid != uid || egid != gid));
785 else if (gimme == G_SCALAR) {
788 SETi(lastrelem - firstrelem + 1);
794 SP = firstrelem + (lastlelem - firstlelem);
795 lelem = firstlelem + (relem - firstrelem);
797 *relem++ = (lelem <= lastlelem) ? *lelem++ : &sv_undef;
805 register PMOP *pm = cPMOP;
812 register REGEXP *rx = pm->op_pmregexp;
816 I32 oldsave = savestack_ix;
817 I32 update_minmatch = 1;
819 if (op->op_flags & OPf_STACKED)
828 DIE("panic: do_match");
831 if (pm->op_pmflags & PMf_USED) {
832 if (gimme == G_ARRAY)
837 if (!rx->prelen && curpm) {
839 rx = pm->op_pmregexp;
842 if (global = pm->op_pmflags & PMf_GLOBAL) {
844 if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) {
845 MAGIC* mg = mg_find(TARG, 'g');
846 if (mg && mg->mg_len >= 0) {
847 rx->endp[0] = rx->startp[0] = s + mg->mg_len;
848 minmatch = (mg->mg_flags & MGf_MINMATCH);
853 if (!rx->nparens && !global)
854 gimme = G_SCALAR; /* accidental array context? */
855 safebase = (((gimme == G_ARRAY) || global || !rx->nparens)
857 if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) {
859 multiline = pm->op_pmflags & PMf_MULTILINE;
863 if (global && rx->startp[0]) {
865 if ((s + rx->minlen) > strend)
867 if (update_minmatch++)
868 minmatch = (s == rx->startp[0]);
870 if (pm->op_pmshort) {
871 if (pm->op_pmflags & PMf_SCANFIRST) {
872 if (SvSCREAM(TARG)) {
873 if (screamfirst[BmRARE(pm->op_pmshort)] < 0)
875 else if (!(s = screaminstr(TARG, pm->op_pmshort)))
877 else if (pm->op_pmflags & PMf_ALL)
880 else if (!(s = fbm_instr((unsigned char*)s,
881 (unsigned char*)strend, pm->op_pmshort)))
883 else if (pm->op_pmflags & PMf_ALL)
885 if (s && rx->regback >= 0) {
886 ++BmUSEFUL(pm->op_pmshort);
894 else if (!multiline) {
895 if (*SvPVX(pm->op_pmshort) != *s
896 || (pm->op_pmslen > 1
897 && memNE(SvPVX(pm->op_pmshort), s, pm->op_pmslen)))
900 if (!rx->naughty && --BmUSEFUL(pm->op_pmshort) < 0) {
901 SvREFCNT_dec(pm->op_pmshort);
902 pm->op_pmshort = Nullsv; /* opt is being useless */
905 if (pregexec(rx, s, strend, truebase, minmatch,
906 SvSCREAM(TARG) ? TARG : Nullsv, safebase))
909 if (pm->op_pmflags & PMf_ONCE)
910 pm->op_pmflags |= PMf_USED;
918 TAINT_IF(rx->exec_tainted);
919 if (gimme == G_ARRAY) {
923 if (global && !iters)
927 EXTEND(SP, iters + i);
928 EXTEND_MORTAL(iters + i);
929 for (i = !i; i <= iters; i++) {
930 PUSHs(sv_newmortal());
932 if ((s = rx->startp[i]) && rx->endp[i] ) {
933 len = rx->endp[i] - s;
934 sv_setpvn(*SP, s, len);
938 truebase = rx->subbeg;
940 if (rx->startp[0] && rx->startp[0] == rx->endp[0])
944 LEAVE_SCOPE(oldsave);
950 if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG))
951 mg = mg_find(TARG, 'g');
953 sv_magic(TARG, (SV*)0, 'g', Nullch, 0);
954 mg = mg_find(TARG, 'g');
957 mg->mg_len = rx->endp[0] - rx->subbeg;
958 if (rx->startp[0] == rx->endp[0])
959 mg->mg_flags |= MGf_MINMATCH;
961 mg->mg_flags &= ~MGf_MINMATCH;
964 LEAVE_SCOPE(oldsave);
969 TAINT_IF(rx->exec_tainted);
970 ++BmUSEFUL(pm->op_pmshort);
972 if (pm->op_pmflags & PMf_ONCE)
973 pm->op_pmflags |= PMf_USED;
974 Safefree(rx->subbase);
975 rx->subbase = Nullch;
977 rx->subbeg = truebase;
980 rx->endp[0] = s + SvCUR(pm->op_pmshort);
986 tmps = rx->subbase = savepvn(t, strend-t);
988 rx->subend = tmps + (strend-t);
989 tmps = rx->startp[0] = tmps + (s - t);
990 rx->endp[0] = tmps + SvCUR(pm->op_pmshort);
992 LEAVE_SCOPE(oldsave);
997 ++BmUSEFUL(pm->op_pmshort);
1000 if (global && !(pm->op_pmflags & PMf_CONTINUE)) {
1001 if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) {
1002 MAGIC* mg = mg_find(TARG, 'g');
1007 LEAVE_SCOPE(oldsave);
1008 if (gimme == G_ARRAY)
1017 dSP; dTARGETSTACKED;
1022 register IO *io = GvIO(last_in_gv);
1023 register I32 type = op->op_type;
1024 I32 gimme = GIMME_V;
1027 if (SvMAGICAL(last_in_gv) && (mg = mg_find((SV*)last_in_gv, 'q'))) {
1032 perl_call_method("READLINE", gimme);
1035 if (gimme == G_SCALAR)
1036 SvSetMagicSV_nosteal(TARG, TOPs);
1043 if (IoFLAGS(io) & IOf_ARGV) {
1044 if (IoFLAGS(io) & IOf_START) {
1045 IoFLAGS(io) &= ~IOf_START;
1047 if (av_len(GvAVn(last_in_gv)) < 0) {
1048 SV *tmpstr = newSVpv("-", 1); /* assume stdin */
1049 av_push(GvAVn(last_in_gv), tmpstr);
1052 fp = nextargv(last_in_gv);
1053 if (!fp) { /* Note: fp != IoIFP(io) */
1054 (void)do_close(last_in_gv, FALSE); /* now it does*/
1055 IoFLAGS(io) |= IOf_START;
1058 else if (type == OP_GLOB) {
1059 SV *tmpcmd = NEWSV(55, 0);
1063 #ifdef VMS /* expand the wildcards right here, rather than opening a pipe, */
1064 /* since spawning off a process is a real performance hit */
1066 #include <descrip.h>
1067 #include <lib$routines.h>
1070 char rslt[NAM$C_MAXRSS+1+sizeof(unsigned short int)] = {'\0','\0'};
1071 char vmsspec[NAM$C_MAXRSS+1];
1072 char *rstr = rslt + sizeof(unsigned short int), *begin, *end, *cp;
1073 char tmpfnam[L_tmpnam] = "SYS$SCRATCH:";
1074 $DESCRIPTOR(dfltdsc,"SYS$DISK:[]*.*;");
1077 struct dsc$descriptor_s wilddsc
1078 = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0};
1079 struct dsc$descriptor_vs rsdsc
1080 = {sizeof rslt, DSC$K_DTYPE_VT, DSC$K_CLASS_VS, rslt};
1081 unsigned long int cxt = 0, sts = 0, ok = 1, hasdir = 0, hasver = 0, isunix = 0;
1083 /* We could find out if there's an explicit dev/dir or version
1084 by peeking into lib$find_file's internal context at
1085 ((struct NAM *)((struct FAB *)cxt)->fab$l_nam)->nam$l_fnb
1086 but that's unsupported, so I don't want to do it now and
1087 have it bite someone in the future. */
1088 strcat(tmpfnam,tmpnam(NULL));
1089 cp = SvPV(tmpglob,i);
1091 if (cp[i] == ';') hasver = 1;
1093 if (sts) hasver = 1;
1097 hasdir = isunix = 1;
1100 if (cp[i] == ']' || cp[i] == '>' || cp[i] == ':') {
1105 if ((tmpfp = PerlIO_open(tmpfnam,"w+","fop=dlt")) != NULL) {
1106 ok = ((wilddsc.dsc$a_pointer = tovmsspec(SvPVX(tmpglob),vmsspec)) != NULL);
1107 if (ok) wilddsc.dsc$w_length = (unsigned short int) strlen(wilddsc.dsc$a_pointer);
1108 while (ok && ((sts = lib$find_file(&wilddsc,&rsdsc,&cxt,
1109 &dfltdsc,NULL,NULL,NULL))&1)) {
1110 end = rstr + (unsigned long int) *rslt;
1111 if (!hasver) while (*end != ';') end--;
1112 *(end++) = '\n'; *end = '\0';
1113 for (cp = rstr; *cp; cp++) *cp = _tolower(*cp);
1115 if (isunix) trim_unixpath(rstr,SvPVX(tmpglob),1);
1120 while (*(--begin) != ']' && *begin != '>') ;
1123 ok = (PerlIO_puts(tmpfp,begin) != EOF);
1125 if (cxt) (void)lib$find_file_end(&cxt);
1126 if (ok && sts != RMS$_NMF &&
1127 sts != RMS$_DNF && sts != RMS$_FNF) ok = 0;
1130 SETERRNO((sts == RMS$_SYN ? EINVAL : EVMSERR),sts);
1132 PerlIO_close(tmpfp);
1136 PerlIO_rewind(tmpfp);
1138 IoIFP(io) = fp = tmpfp;
1139 IoFLAGS(io) &= ~IOf_UNTAINT; /* maybe redundant */
1146 sv_setpv(tmpcmd, "for a in ");
1147 sv_catsv(tmpcmd, tmpglob);
1148 sv_catpv(tmpcmd, "; do echo \"$a\\0\\c\"; done |");
1150 sv_setpv(tmpcmd, "perlglob ");
1151 sv_catsv(tmpcmd, tmpglob);
1152 sv_catpv(tmpcmd, " |");
1156 sv_setpvn(tmpcmd, cshname, cshlen);
1157 sv_catpv(tmpcmd, " -cf 'set nonomatch; glob ");
1158 sv_catsv(tmpcmd, tmpglob);
1159 sv_catpv(tmpcmd, "' 2>/dev/null |");
1161 sv_setpv(tmpcmd, "echo ");
1162 sv_catsv(tmpcmd, tmpglob);
1164 sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\012\\012\\012\\012'|");
1166 sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\n\\n\\n\\n'|");
1169 #endif /* !DOSISH */
1170 (void)do_open(last_in_gv, SvPVX(tmpcmd), SvCUR(tmpcmd),
1171 FALSE, 0, 0, Nullfp);
1177 else if (type == OP_GLOB)
1181 if (dowarn && io && !(IoFLAGS(io) & IOf_START))
1182 warn("Read on closed filehandle <%s>", GvENAME(last_in_gv));
1183 if (gimme == G_SCALAR) {
1184 (void)SvOK_off(TARG);
1189 if (gimme == G_SCALAR) {
1193 (void)SvUPGRADE(sv, SVt_PV);
1194 tmplen = SvLEN(sv); /* remember if already alloced */
1196 Sv_Grow(sv, 80); /* try short-buffering it */
1197 if (type == OP_RCATLINE)
1203 sv = sv_2mortal(NEWSV(57, 80));
1207 if (!sv_gets(sv, fp, offset)) {
1208 PerlIO_clearerr(fp);
1209 if (IoFLAGS(io) & IOf_ARGV) {
1210 fp = nextargv(last_in_gv);
1213 (void)do_close(last_in_gv, FALSE);
1214 IoFLAGS(io) |= IOf_START;
1216 else if (type == OP_GLOB) {
1217 if (do_close(last_in_gv, FALSE) & ~0xFF)
1218 warn("internal error: glob failed");
1220 if (gimme == G_SCALAR) {
1221 (void)SvOK_off(TARG);
1226 /* This should not be marked tainted if the fp is marked clean */
1227 if (!(IoFLAGS(io) & IOf_UNTAINT)) {
1234 if (type == OP_GLOB) {
1237 if (SvCUR(sv) > 0 && SvCUR(rs) > 0) {
1238 tmps = SvEND(sv) - 1;
1239 if (*tmps == *SvPVX(rs)) {
1244 for (tmps = SvPVX(sv); *tmps; tmps++)
1245 if (!isALPHA(*tmps) && !isDIGIT(*tmps) &&
1246 strchr("$&*(){}[]'\";\\|?<>~`", *tmps))
1248 if (*tmps && Stat(SvPVX(sv), &statbuf) < 0) {
1249 (void)POPs; /* Unmatched wildcard? Chuck it... */
1253 if (gimme == G_ARRAY) {
1254 if (SvLEN(sv) - SvCUR(sv) > 20) {
1255 SvLEN_set(sv, SvCUR(sv)+1);
1256 Renew(SvPVX(sv), SvLEN(sv), char);
1258 sv = sv_2mortal(NEWSV(58, 80));
1261 else if (gimme == G_SCALAR && !tmplen && SvLEN(sv) - SvCUR(sv) > 80) {
1262 /* try to reclaim a bit of scalar space (only on 1st alloc) */
1266 SvLEN_set(sv, SvCUR(sv)+40); /* allow some slop */
1267 Renew(SvPVX(sv), SvLEN(sv), char);
1276 register CONTEXT *cx;
1277 I32 gimme = OP_GIMME(op, -1);
1280 if (cxstack_ix >= 0)
1281 gimme = cxstack[cxstack_ix].blk_gimme;
1289 PUSHBLOCK(cx, CXt_BLOCK, sp);
1301 U32 lval = op->op_flags & OPf_MOD;
1302 U32 defer = op->op_private & OPpLVAL_DEFER;
1304 if (SvTYPE(hv) == SVt_PVHV) {
1305 he = hv_fetch_ent(hv, keysv, lval && !defer, 0);
1306 svp = he ? &HeVAL(he) : 0;
1308 else if (SvTYPE(hv) == SVt_PVAV) {
1309 svp = avhv_fetch_ent((AV*)hv, keysv, lval && !defer, 0);
1315 if (!svp || *svp == &sv_undef) {
1319 DIE(no_helem, SvPV(keysv, na));
1320 lv = sv_newmortal();
1321 sv_upgrade(lv, SVt_PVLV);
1323 sv_magic(lv, key2 = newSVsv(keysv), 'y', Nullch, 0);
1324 SvREFCNT_dec(key2); /* sv_magic() increments refcount */
1325 LvTARG(lv) = SvREFCNT_inc(hv);
1330 if (op->op_private & OPpLVAL_INTRO) {
1331 if (HvNAME(hv) && isGV(*svp))
1332 save_gp((GV*)*svp, !(op->op_flags & OPf_SPECIAL));
1336 else if (op->op_private & OPpDEREF)
1337 vivify_ref(*svp, op->op_private & OPpDEREF);
1339 PUSHs(svp ? *svp : &sv_undef);
1346 register CONTEXT *cx;
1352 if (op->op_flags & OPf_SPECIAL) {
1353 cx = &cxstack[cxstack_ix];
1354 cx->blk_oldpm = curpm; /* fake block should preserve $1 et al */
1359 gimme = OP_GIMME(op, -1);
1361 if (cxstack_ix >= 0)
1362 gimme = cxstack[cxstack_ix].blk_gimme;
1368 if (gimme == G_VOID)
1370 else if (gimme == G_SCALAR) {
1373 if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP))
1376 *MARK = sv_mortalcopy(TOPs);
1383 else if (gimme == G_ARRAY) {
1384 /* in case LEAVE wipes old return values */
1385 for (mark = newsp + 1; mark <= SP; mark++) {
1386 if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) {
1387 *mark = sv_mortalcopy(*mark);
1388 TAINT_NOT; /* Each item is independent */
1392 curpm = newpm; /* Don't pop $1 et al till now */
1402 register CONTEXT *cx;
1407 cx = &cxstack[cxstack_ix];
1408 if (cx->cx_type != CXt_LOOP)
1409 DIE("panic: pp_iter");
1411 av = cx->blk_loop.iterary;
1412 if (cx->blk_loop.iterix >= (av == curstack ? cx->blk_oldsp : AvFILL(av)))
1415 SvREFCNT_dec(*cx->blk_loop.itervar);
1417 if (sv = AvARRAY(av)[++cx->blk_loop.iterix])
1421 if (av != curstack && SvIMMORTAL(sv)) {
1422 SV *lv = cx->blk_loop.iterlval;
1423 if (lv && SvREFCNT(lv) > 1) {
1428 SvREFCNT_dec(LvTARG(lv));
1430 lv = cx->blk_loop.iterlval = NEWSV(26, 0);
1431 sv_upgrade(lv, SVt_PVLV);
1433 sv_magic(lv, Nullsv, 'y', Nullch, 0);
1435 LvTARG(lv) = SvREFCNT_inc(av);
1436 LvTARGOFF(lv) = cx->blk_loop.iterix;
1441 *cx->blk_loop.itervar = SvREFCNT_inc(sv);
1448 register PMOP *pm = cPMOP;
1464 register REGEXP *rx = pm->op_pmregexp;
1466 int force_on_match = 0;
1467 I32 oldsave = savestack_ix;
1469 /* known replacement string? */
1470 dstr = (pm->op_pmflags & PMf_CONST) ? POPs : Nullsv;
1471 if (op->op_flags & OPf_STACKED)
1477 if (SvREADONLY(TARG)
1478 || (SvTYPE(TARG) > SVt_PVLV
1479 && !(SvTYPE(TARG) == SVt_PVGV && SvFAKE(TARG))))
1481 s = SvPV(TARG, len);
1482 if (!SvPOKp(TARG) || SvTYPE(TARG) == SVt_PVGV)
1488 DIE("panic: do_subst");
1491 maxiters = (strend - s) + 10;
1493 if (!rx->prelen && curpm) {
1495 rx = pm->op_pmregexp;
1497 safebase = (!rx->nparens && !sawampersand);
1498 if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) {
1500 multiline = pm->op_pmflags & PMf_MULTILINE;
1503 if (pm->op_pmshort) {
1504 if (pm->op_pmflags & PMf_SCANFIRST) {
1505 if (SvSCREAM(TARG)) {
1506 if (screamfirst[BmRARE(pm->op_pmshort)] < 0)
1508 else if (!(s = screaminstr(TARG, pm->op_pmshort)))
1511 else if (!(s = fbm_instr((unsigned char*)s, (unsigned char*)strend,
1514 if (s && rx->regback >= 0) {
1515 ++BmUSEFUL(pm->op_pmshort);
1523 else if (!multiline) {
1524 if (*SvPVX(pm->op_pmshort) != *s
1525 || (pm->op_pmslen > 1
1526 && memNE(SvPVX(pm->op_pmshort), s, pm->op_pmslen)))
1529 if (!rx->naughty && --BmUSEFUL(pm->op_pmshort) < 0) {
1530 SvREFCNT_dec(pm->op_pmshort);
1531 pm->op_pmshort = Nullsv; /* opt is being useless */
1535 /* only replace once? */
1536 once = !(rpm->op_pmflags & PMf_GLOBAL);
1538 /* known replacement string? */
1539 c = dstr ? SvPV(dstr, clen) : Nullch;
1541 /* can do inplace substitution? */
1542 if (c && clen <= rx->minlen && safebase) {
1543 if (! pregexec(rx, s, strend, orig, 0,
1544 SvSCREAM(TARG) ? TARG : Nullsv, safebase)) {
1546 LEAVE_SCOPE(oldsave);
1549 if (force_on_match) {
1551 s = SvPV_force(TARG, len);
1556 SvSCREAM_off(TARG); /* disable possible screamer */
1558 rxtainted = rx->exec_tainted;
1562 if (m - s > strend - d) { /* faster to shorten from end */
1564 Copy(c, m, clen, char);
1569 Move(d, m, i, char);
1573 SvCUR_set(TARG, m - s);
1576 else if (i = m - s) { /* faster from front */
1584 Copy(c, m, clen, char);
1589 Copy(c, d, clen, char);
1594 TAINT_IF(rxtainted);
1600 if (iters++ > maxiters)
1601 DIE("Substitution loop");
1602 rxtainted |= rx->exec_tainted;
1607 Move(s, d, i, char);
1611 Copy(c, d, clen, char);
1615 } while (pregexec(rx, s, strend, orig, s == m,
1616 Nullsv, TRUE)); /* don't match same null twice */
1619 SvCUR_set(TARG, d - SvPVX(TARG) + i);
1620 Move(s, d, i+1, char); /* include the NUL */
1622 TAINT_IF(rxtainted);
1623 PUSHs(sv_2mortal(newSViv((I32)iters)));
1625 (void)SvPOK_only(TARG);
1628 LEAVE_SCOPE(oldsave);
1632 if (pregexec(rx, s, strend, orig, 0,
1633 SvSCREAM(TARG) ? TARG : Nullsv, safebase)) {
1634 if (force_on_match) {
1636 s = SvPV_force(TARG, len);
1639 rxtainted = rx->exec_tainted;
1640 dstr = NEWSV(25, sv_len(TARG));
1641 sv_setpvn(dstr, m, s-m);
1644 register CONTEXT *cx;
1646 RETURNOP(cPMOP->op_pmreplroot);
1649 if (iters++ > maxiters)
1650 DIE("Substitution loop");
1651 rxtainted |= rx->exec_tainted;
1652 if (rx->subbase && rx->subbase != orig) {
1657 strend = s + (strend - m);
1660 sv_catpvn(dstr, s, m-s);
1663 sv_catpvn(dstr, c, clen);
1666 } while (pregexec(rx, s, strend, orig, s == m, Nullsv, safebase));
1667 sv_catpvn(dstr, s, strend - s);
1669 TAINT_IF(rxtainted);
1671 (void)SvOOK_off(TARG);
1672 Safefree(SvPVX(TARG));
1673 SvPVX(TARG) = SvPVX(dstr);
1674 SvCUR_set(TARG, SvCUR(dstr));
1675 SvLEN_set(TARG, SvLEN(dstr));
1679 (void)SvPOK_only(TARG);
1682 PUSHs(sv_2mortal(newSViv((I32)iters)));
1683 LEAVE_SCOPE(oldsave);
1689 ++BmUSEFUL(pm->op_pmshort);
1693 LEAVE_SCOPE(oldsave);
1702 stack_base[markstack_ptr[-1]++] = stack_base[*markstack_ptr];
1704 LEAVE; /* exit inner scope */
1707 if (stack_base + *markstack_ptr > sp) {
1709 I32 gimme = GIMME_V;
1711 LEAVE; /* exit outer scope */
1712 (void)POPMARK; /* pop src */
1713 items = --*markstack_ptr - markstack_ptr[-1];
1714 (void)POPMARK; /* pop dst */
1715 SP = stack_base + POPMARK; /* pop original mark */
1716 if (gimme == G_SCALAR) {
1720 else if (gimme == G_ARRAY)
1727 ENTER; /* enter inner scope */
1730 src = stack_base[*markstack_ptr];
1734 RETURNOP(cLOGOP->op_other);
1745 register CONTEXT *cx;
1746 struct block_sub cxsub;
1749 POPSUB1(cx); /* Delay POPSUB2 until stack values are safe */
1752 if (gimme == G_SCALAR) {
1755 *MARK = SvTEMP(TOPs) ? TOPs : sv_mortalcopy(TOPs);
1762 else if (gimme == G_ARRAY) {
1763 for (MARK = newsp + 1; MARK <= SP; MARK++) {
1764 if (!SvTEMP(*MARK)) {
1765 *MARK = sv_mortalcopy(*MARK);
1766 TAINT_NOT; /* Each item is independent */
1772 POPSUB2(); /* Stack values are safe: release CV and @_ ... */
1773 curpm = newpm; /* ... and pop $1 et al */
1776 return pop_return();
1785 register CONTEXT *cx;
1787 bool hasargs = (op->op_flags & OPf_STACKED) != 0;
1790 DIE("Not a CODE reference");
1791 switch (SvTYPE(sv)) {
1796 if (sv == &sv_yes) /* unfound import, ignore */
1798 if (SvGMAGICAL(sv)) {
1800 sym = SvPOKp(sv) ? SvPVX(sv) : Nullch;
1805 DIE(no_usym, "a subroutine");
1806 if (op->op_private & HINT_STRICT_REFS)
1807 DIE(no_symref, sym, "a subroutine");
1808 cv = perl_get_cv(sym, TRUE);
1812 if (SvTYPE(cv) == SVt_PVCV)
1817 DIE("Not a CODE reference");
1822 if (!(cv = GvCVu((GV*)sv)))
1823 cv = sv_2cv(sv, &stash, &gv, TRUE);
1832 DIE("Not a CODE reference");
1834 if (!CvROOT(cv) && !CvXSUB(cv)) {
1838 /* anonymous or undef'd function leaves us no recourse */
1839 if (CvANON(cv) || !(gv = CvGV(cv)))
1840 DIE("Undefined subroutine called");
1841 /* autoloaded stub? */
1842 if (cv != GvCV(gv)) {
1846 /* should call AUTOLOAD now? */
1847 if ((autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv),
1854 subname = sv_newmortal();
1855 gv_efullname3(subname, gv, Nullch);
1856 DIE("Undefined subroutine &%s called", SvPVX(subname));
1860 if ((op->op_private & OPpENTERSUB_DB) && GvCV(DBsub) && !CvNODEBUG(cv)) {
1865 if ( (CvFLAGS(cv) & (CVf_ANON | CVf_CLONED))
1866 || strEQ(GvNAME(gv), "END")
1867 || ((GvCV(gv) != cv) && /* Could be imported, and old sub redefined. */
1868 !( (SvTYPE(oldsv) == SVt_PVGV) && (GvCV((GV*)oldsv) == cv)
1869 && (gv = (GV*)oldsv) ))) { /* Use GV from the stack as a fallback. */
1870 /* GV is potentially non-unique, or contain different CV. */
1871 sv_setsv(sv, newRV((SV*)cv));
1874 gv_efullname3(sv, gv, Nullch);
1877 if (CvXSUB(cv)) curcopdb = curcop;
1879 DIE("No DBsub routine");
1883 MUTEX_LOCK(CvMUTEXP(cv));
1884 if (CvFLAGS(cv) & CVf_LOCKED) {
1886 if (CvFLAGS(cv) & CVf_METHOD) {
1887 if (SP > stack_base + TOPMARK)
1888 sv = *(stack_base + TOPMARK + 1);
1890 MUTEX_UNLOCK(CvMUTEXP(cv));
1891 croak("no argument for locked method call");
1899 MUTEX_UNLOCK(CvMUTEXP(cv));
1900 mg = condpair_magic(sv);
1901 MUTEX_LOCK(MgMUTEXP(mg));
1902 if (MgOWNER(mg) == thr)
1903 MUTEX_UNLOCK(MgMUTEXP(mg));
1906 COND_WAIT(MgOWNERCONDP(mg), MgMUTEXP(mg));
1908 DEBUG_L(PerlIO_printf(PerlIO_stderr(),
1909 "0x%lx: pp_entersub lock 0x%lx\n",
1910 (unsigned long)thr, (unsigned long)sv);)
1911 MUTEX_UNLOCK(MgMUTEXP(mg));
1912 save_destructor(unlock_condpair, sv);
1914 MUTEX_LOCK(CvMUTEXP(cv));
1915 assert(CvOWNER(cv) == 0);
1916 CvOWNER(cv) = thr; /* Assert ownership */
1918 MUTEX_UNLOCK(CvMUTEXP(cv));
1919 if (CvDEPTH(cv) == 0)
1920 SAVEDESTRUCTOR(unset_cvowner, (void*) cv);
1924 * It's an ordinary unsynchronised CV so we must distinguish
1925 * three cases. (1) It's ours already (and we're recursing);
1926 * (2) it's free (but we may already be using a cached clone);
1927 * (3) another thread owns it. Case (1) is easy: we just use it.
1928 * Case (2) means we look for a clone--if we have one, use it
1929 * otherwise grab ownership of cv. Case (3) means look we for a
1930 * clone and have to create one if we don't already have one.
1931 * Why look for a clone in case (2) when we could just grab
1932 * ownership of cv straight away? Well, we could be recursing,
1933 * i.e. we originally tried to enter cv while another thread
1934 * owned it (hence we used a clone) but it has been freed up
1935 * and we're now recursing into it. It may or may not be "better"
1936 * to use the clone but at least CvDEPTH can be trusted.
1938 if (CvOWNER(cv) == thr)
1939 MUTEX_UNLOCK(CvMUTEXP(cv));
1941 /* Case (2) or (3) */
1945 * XXX Might it be better to release CvMUTEXP(cv) while we
1946 * do the hv_fetch? We might find someone has pinched it
1947 * when we look again, in which case we would be in case
1948 * (3) instead of (2) so we'd have to clone. Would the fact
1949 * that we released the mutex more quickly make up for this?
1951 svp = hv_fetch(cvcache, (char *)cv, sizeof(cv), FALSE);
1953 /* We already have a clone to use */
1954 MUTEX_UNLOCK(CvMUTEXP(cv));
1956 DEBUG_L(PerlIO_printf(PerlIO_stderr(),
1957 "entersub: 0x%lx already has clone 0x%lx:%s\n",
1958 (unsigned long) thr, (unsigned long) cv,
1962 if (CvDEPTH(cv) == 0)
1963 SAVEDESTRUCTOR(unset_cvowner, (void*) cv);
1966 /* (2) => grab ownership of cv. (3) => make clone */
1970 MUTEX_UNLOCK(CvMUTEXP(cv));
1971 DEBUG_L(PerlIO_printf(PerlIO_stderr(),
1972 "entersub: 0x%lx grabbing 0x%lx:%s in stash %s\n",
1973 (unsigned long) thr, (unsigned long) cv,
1974 SvPEEK((SV*)cv), CvSTASH(cv) ?
1975 HvNAME(CvSTASH(cv)) : "(none)"));
1977 /* Make a new clone. */
1979 SvREFCNT_inc(cv); /* don't let it vanish from under us */
1980 MUTEX_UNLOCK(CvMUTEXP(cv));
1981 DEBUG_L((PerlIO_printf(PerlIO_stderr(),
1982 "entersub: 0x%lx cloning 0x%lx:%s\n",
1983 (unsigned long) thr, (unsigned long) cv,
1986 * We're creating a new clone so there's no race
1987 * between the original MUTEX_UNLOCK and the
1988 * SvREFCNT_inc since no one will be trying to undef
1989 * it out from underneath us. At least, I don't think
1992 clonecv = cv_clone(cv);
1993 SvREFCNT_dec(cv); /* finished with this */
1994 hv_store(cvcache, (char*)cv, sizeof(cv), (SV*)clonecv,0);
1995 CvOWNER(clonecv) = thr;
1999 DEBUG_L(if (CvDEPTH(cv) != 0)
2000 PerlIO_printf(PerlIO_stderr(), "depth %ld != 0\n",
2002 SAVEDESTRUCTOR(unset_cvowner, (void*) cv);
2006 #endif /* USE_THREADS */
2011 if (CvOLDSTYLE(cv)) {
2012 I32 (*fp3)_((int,int,int));
2014 register I32 items = SP - MARK;
2015 /* We dont worry to copy from @_. */
2020 stack_sp = mark + 1;
2021 fp3 = (I32(*)_((int,int,int)))CvXSUB(cv);
2022 items = (*fp3)(CvXSUBANY(cv).any_i32,
2023 MARK - stack_base + 1,
2025 stack_sp = stack_base + items;
2028 I32 markix = TOPMARK;
2033 /* Need to copy @_ to stack. Alternative may be to
2034 * switch stack to @_, and copy return values
2035 * back. This would allow popping @_ in XSUB, e.g.. XXXX */
2039 av = (AV*)curpad[0];
2042 #endif /* USE_THREADS */
2043 items = AvFILL(av) + 1;
2046 /* Mark is at the end of the stack. */
2048 Copy(AvARRAY(av), sp + 1, items, SV*);
2053 if (curcopdb) { /* We assume that the first
2054 XSUB in &DB::sub is the
2060 /* Do we need to open block here? XXXX */
2061 (void)(*CvXSUB(cv))(cv);
2063 /* Enforce some sanity in scalar context. */
2064 if (gimme == G_SCALAR && ++markix != stack_sp - stack_base ) {
2065 if (markix > stack_sp - stack_base)
2066 *(stack_base + markix) = &sv_undef;
2068 *(stack_base + markix) = *stack_sp;
2069 stack_sp = stack_base + markix;
2077 register I32 items = SP - MARK;
2078 AV* padlist = CvPADLIST(cv);
2079 SV** svp = AvARRAY(padlist);
2080 push_return(op->op_next);
2081 PUSHBLOCK(cx, CXt_SUB, MARK);
2084 if (CvDEPTH(cv) < 2)
2085 (void)SvREFCNT_inc(cv);
2086 else { /* save temporaries on recursion? */
2087 if (CvDEPTH(cv) == 100 && dowarn
2088 && !(perldb && cv == GvCV(DBsub)))
2089 sub_crush_depth(cv);
2090 if (CvDEPTH(cv) > AvFILL(padlist)) {
2092 AV *newpad = newAV();
2093 SV **oldpad = AvARRAY(svp[CvDEPTH(cv)-1]);
2094 I32 ix = AvFILL((AV*)svp[1]);
2095 svp = AvARRAY(svp[0]);
2096 for ( ;ix > 0; ix--) {
2097 if (svp[ix] != &sv_undef) {
2098 char *name = SvPVX(svp[ix]);
2099 if ((SvFLAGS(svp[ix]) & SVf_FAKE) /* outer lexical? */
2100 || *name == '&') /* anonymous code? */
2102 av_store(newpad, ix, SvREFCNT_inc(oldpad[ix]));
2104 else { /* our own lexical */
2106 av_store(newpad, ix, sv = (SV*)newAV());
2107 else if (*name == '%')
2108 av_store(newpad, ix, sv = (SV*)newHV());
2110 av_store(newpad, ix, sv = NEWSV(0,0));
2115 av_store(newpad, ix, sv = NEWSV(0,0));
2119 av = newAV(); /* will be @_ */
2121 av_store(newpad, 0, (SV*)av);
2122 AvFLAGS(av) = AVf_REIFY;
2123 av_store(padlist, CvDEPTH(cv), (SV*)newpad);
2124 AvFILL(padlist) = CvDEPTH(cv);
2125 svp = AvARRAY(padlist);
2130 AV* av = (AV*)curpad[0];
2132 items = AvFILL(av) + 1;
2134 /* Mark is at the end of the stack. */
2136 Copy(AvARRAY(av), sp + 1, items, SV*);
2141 #endif /* USE_THREADS */
2143 curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]);
2146 #endif /* USE_THREADS */
2152 DEBUG_L(PerlIO_printf(PerlIO_stderr(),
2153 "%p entersub preparing @_\n", thr));
2155 av = (AV*)curpad[0];
2161 cx->blk_sub.savearray = GvAV(defgv);
2162 GvAV(defgv) = (AV*)SvREFCNT_inc(av);
2163 #endif /* USE_THREADS */
2164 cx->blk_sub.argarray = av;
2167 if (items > AvMAX(av) + 1) {
2169 if (AvARRAY(av) != ary) {
2170 AvMAX(av) += AvARRAY(av) - AvALLOC(av);
2171 SvPVX(av) = (char*)ary;
2173 if (items > AvMAX(av) + 1) {
2174 AvMAX(av) = items - 1;
2175 Renew(ary,items,SV*);
2177 SvPVX(av) = (char*)ary;
2180 Copy(MARK,AvARRAY(av),items,SV*);
2181 AvFILL(av) = items - 1;
2190 DEBUG_L(PerlIO_printf(PerlIO_stderr(),
2191 "%p entersub returning %p\n", thr, CvSTART(cv)));
2193 RETURNOP(CvSTART(cv));
2202 warn("Deep recursion on anonymous subroutine");
2204 SV* tmpstr = sv_newmortal();
2205 gv_efullname3(tmpstr, CvGV(cv), Nullch);
2206 warn("Deep recursion on subroutine \"%s\"", SvPVX(tmpstr));
2216 U32 lval = op->op_flags & OPf_MOD;
2217 U32 defer = (op->op_private & OPpLVAL_DEFER) && (elem > AvFILL(av));
2220 elem -= curcop->cop_arybase;
2221 if (SvTYPE(av) != SVt_PVAV)
2223 svp = av_fetch(av, elem, lval && !defer);
2225 if (!svp || *svp == &sv_undef) {
2228 DIE(no_aelem, elem);
2229 lv = sv_newmortal();
2230 sv_upgrade(lv, SVt_PVLV);
2232 sv_magic(lv, Nullsv, 'y', Nullch, 0);
2233 LvTARG(lv) = SvREFCNT_inc(av);
2234 LvTARGOFF(lv) = elem;
2239 if (op->op_private & OPpLVAL_INTRO)
2241 else if (op->op_private & OPpDEREF)
2242 vivify_ref(*svp, op->op_private & OPpDEREF);
2244 PUSHs(svp ? *svp : &sv_undef);
2249 vivify_ref(sv, to_what)
2258 if (SvTYPE(sv) < SVt_RV)
2259 sv_upgrade(sv, SVt_RV);
2260 else if (SvTYPE(sv) >= SVt_PV) {
2261 (void)SvOOK_off(sv);
2262 Safefree(SvPVX(sv));
2263 SvLEN(sv) = SvCUR(sv) = 0;
2267 SvRV(sv) = newSV(0);
2270 SvRV(sv) = (SV*)newAV();
2273 SvRV(sv) = (SV*)newHV();
2292 name = SvPV(TOPs, na);
2293 sv = *(stack_base + TOPMARK + 1);
2304 !(packname = SvPV(sv, packlen)) ||
2305 !(iogv = gv_fetchpv(packname, FALSE, SVt_PVIO)) ||
2306 !(ob=(SV*)GvIO(iogv)))
2308 if (!packname || !isIDFIRST(*packname))
2309 DIE("Can't call method \"%s\" without a package or object reference", name);
2310 stash = gv_stashpvn(packname, packlen, TRUE);
2313 *(stack_base + TOPMARK + 1) = sv_2mortal(newRV((SV*)iogv));
2316 if (!ob || !SvOBJECT(ob))
2317 DIE("Can't call method \"%s\" on unblessed reference", name);
2319 stash = SvSTASH(ob);
2322 gv = gv_fetchmethod(stash, name);
2328 for (p = name; *p; p++) {
2330 sep = p, leaf = p + 1;
2331 else if (*p == ':' && *(p + 1) == ':')
2332 sep = p, leaf = p + 2;
2334 if (!sep || ((sep - name) == 5 && strnEQ(name, "SUPER", 5))) {
2335 packname = HvNAME(sep ? curcop->cop_stash : stash);
2336 packlen = strlen(packname);
2340 packlen = sep - name;
2342 DIE("Can't locate object method \"%s\" via package \"%.*s\"",
2343 leaf, (int)packlen, packname);
2345 SETs(isGV(gv) ? (SV*)GvCV(gv) : (SV*)gv);