/* pp_hot.c
*
- * Copyright (c) 1991-1994, Larry Wall
+ * Copyright (c) 1991-2000, Larry Wall
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
*/
#include "EXTERN.h"
+#define PERL_IN_PP_HOT_C
#include "perl.h"
+#ifdef I_UNISTD
+#include <unistd.h>
+#endif
+
/* Hot code. */
+#ifdef USE_THREADS
+static void unset_cvowner(pTHXo_ void *cvarg);
+#endif /* USE_THREADS */
+
PP(pp_const)
{
- dSP;
- XPUSHs(cSVOP->op_sv);
+ djSP;
+ XPUSHs(cSVOP_sv);
RETURN;
}
PP(pp_nextstate)
{
- curcop = (COP*)op;
+ PL_curcop = (COP*)PL_op;
TAINT_NOT; /* Each statement is presumed innocent */
- stack_sp = stack_base + cxstack[cxstack_ix].blk_oldsp;
+ PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp;
FREETMPS;
return NORMAL;
}
PP(pp_gvsv)
{
- dSP;
- EXTEND(sp,1);
- if (op->op_private & OPpLVAL_INTRO)
- PUSHs(save_scalar(cGVOP->op_gv));
+ djSP;
+ EXTEND(SP,1);
+ if (PL_op->op_private & OPpLVAL_INTRO)
+ PUSHs(save_scalar(cGVOP_gv));
else
- PUSHs(GvSV(cGVOP->op_gv));
+ PUSHs(GvSV(cGVOP_gv));
RETURN;
}
return NORMAL;
}
+PP(pp_setstate)
+{
+ PL_curcop = (COP*)PL_op;
+ return NORMAL;
+}
+
PP(pp_pushmark)
{
- PUSHMARK(stack_sp);
+ PUSHMARK(PL_stack_sp);
return NORMAL;
}
PP(pp_stringify)
{
- dSP; dTARGET;
+ djSP; dTARGET;
STRLEN len;
char *s;
s = SvPV(TOPs,len);
sv_setpvn(TARG,s,len);
+ if (SvUTF8(TOPs) && !IN_BYTE)
+ SvUTF8_on(TARG);
SETTARG;
RETURN;
}
PP(pp_gv)
{
- dSP;
- XPUSHs((SV*)cGVOP->op_gv);
+ djSP;
+ XPUSHs((SV*)cGVOP_gv);
RETURN;
}
PP(pp_and)
{
- dSP;
+ djSP;
if (!SvTRUE(TOPs))
RETURN;
else {
PP(pp_sassign)
{
- dSP; dPOPTOPssrl;
- MAGIC *mg;
+ djSP; dPOPTOPssrl;
- if (op->op_private & OPpASSIGN_BACKWARDS) {
+ if (PL_op->op_private & OPpASSIGN_BACKWARDS) {
SV *temp;
temp = left; left = right; right = temp;
}
- if (tainting && tainted && (!SvGMAGICAL(left) || !SvSMAGICAL(left) ||
- !((mg = mg_find(left, 't')) && mg->mg_len & 1)))
- {
+ if (PL_tainting && PL_tainted && !SvTAINTED(left))
TAINT_NOT;
- }
- SvSetSV(right, left);
- SvSETMAGIC(right);
+ SvSetMagicSV(right, left);
SETs(right);
RETURN;
}
PP(pp_cond_expr)
{
- dSP;
+ djSP;
if (SvTRUEx(POPs))
- RETURNOP(cCONDOP->op_true);
+ RETURNOP(cLOGOP->op_other);
else
- RETURNOP(cCONDOP->op_false);
+ RETURNOP(cLOGOP->op_next);
}
PP(pp_unstack)
{
I32 oldsave;
TAINT_NOT; /* Each statement is presumed innocent */
- stack_sp = stack_base + cxstack[cxstack_ix].blk_oldsp;
+ PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp;
FREETMPS;
- oldsave = scopestack[scopestack_ix - 1];
+ oldsave = PL_scopestack[PL_scopestack_ix - 1];
LEAVE_SCOPE(oldsave);
return NORMAL;
}
-PP(pp_seq)
-{
- dSP; tryAMAGICbinSET(seq,0);
- {
- dPOPTOPssrl;
- SETs( sv_eq(left, right) ? &sv_yes : &sv_no );
- RETURN;
- }
-}
-
PP(pp_concat)
{
- dSP; dATARGET; tryAMAGICbin(concat,opASSIGN);
+ djSP; dATARGET; tryAMAGICbin(concat,opASSIGN);
{
dPOPTOPssrl;
STRLEN len;
char *s;
+ bool left_utf = DO_UTF8(left);
+ bool right_utf = DO_UTF8(right);
+
if (TARG != left) {
+ if (right_utf && !left_utf)
+ sv_utf8_upgrade(left);
s = SvPV(left,len);
+ SvUTF8_off(TARG);
+ if (TARG == right) {
+ if (left_utf && !right_utf)
+ sv_utf8_upgrade(right);
+ sv_insert(TARG, 0, 0, s, len);
+ if (left_utf || right_utf)
+ SvUTF8_on(TARG);
+ SETs(TARG);
+ RETURN;
+ }
sv_setpvn(TARG,s,len);
}
- else if (!SvOK(TARG))
+ else if (SvGMAGICAL(TARG)) {
+ mg_get(TARG);
+ if (right_utf && !left_utf)
+ sv_utf8_upgrade(left);
+ }
+ else if (!SvOK(TARG) && SvTYPE(TARG) <= SVt_PVMG) {
sv_setpv(TARG, ""); /* Suppress warning. */
+ s = SvPV_force(TARG, len);
+ }
+ if (left_utf && !right_utf)
+ sv_utf8_upgrade(right);
s = SvPV(right,len);
- sv_catpvn(TARG,s,len);
+ if (SvOK(TARG)) {
+#if defined(PERL_Y2KWARN)
+ if ((SvIOK(right) || SvNOK(right)) && ckWARN(WARN_Y2K)) {
+ STRLEN n;
+ char *s = SvPV(TARG,n);
+ if (n >= 2 && s[n-2] == '1' && s[n-1] == '9'
+ && (n == 2 || !isDIGIT(s[n-3])))
+ {
+ Perl_warner(aTHX_ WARN_Y2K, "Possible Y2K bug: %s",
+ "about to append an integer to '19'");
+ }
+ }
+#endif
+ sv_catpvn(TARG,s,len);
+ }
+ else
+ sv_setpvn(TARG,s,len); /* suppress warning */
+ if (left_utf || right_utf)
+ SvUTF8_on(TARG);
SETTARG;
RETURN;
}
PP(pp_padsv)
{
- dSP; dTARGET;
+ djSP; dTARGET;
XPUSHs(TARG);
- if (op->op_private & OPpLVAL_INTRO)
- SAVECLEARSV(curpad[op->op_targ]);
+ if (PL_op->op_flags & OPf_MOD) {
+ if (PL_op->op_private & OPpLVAL_INTRO)
+ SAVECLEARSV(PL_curpad[PL_op->op_targ]);
+ else if (PL_op->op_private & OPpDEREF) {
+ PUTBACK;
+ vivify_ref(PL_curpad[PL_op->op_targ], PL_op->op_private & OPpDEREF);
+ SPAGAIN;
+ }
+ }
RETURN;
}
PP(pp_readline)
{
- last_in_gv = (GV*)(*stack_sp--);
+ tryAMAGICunTARGET(iter, 0);
+ PL_last_in_gv = (GV*)(*PL_stack_sp--);
+ if (SvTYPE(PL_last_in_gv) != SVt_PVGV) {
+ if (SvROK(PL_last_in_gv) && SvTYPE(SvRV(PL_last_in_gv)) == SVt_PVGV)
+ PL_last_in_gv = (GV*)SvRV(PL_last_in_gv);
+ else {
+ dSP;
+ XPUSHs((SV*)PL_last_in_gv);
+ PUTBACK;
+ pp_rv2gv();
+ PL_last_in_gv = (GV*)(*PL_stack_sp--);
+ }
+ }
return do_readline();
}
PP(pp_eq)
{
- dSP; tryAMAGICbinSET(eq,0);
+ djSP; tryAMAGICbinSET(eq,0);
{
dPOPnv;
- SETs((TOPn == value) ? &sv_yes : &sv_no);
+ SETs(boolSV(TOPn == value));
RETURN;
}
}
PP(pp_preinc)
{
- dSP;
- if (SvIOK(TOPs)) {
+ djSP;
+ if (SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV)
+ DIE(aTHX_ PL_no_modify);
+ if (SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
+ SvIVX(TOPs) != IV_MAX)
+ {
++SvIVX(TOPs);
- SvFLAGS(TOPs) &= ~(SVf_NOK|SVf_POK|SVp_NOK|SVp_POK);
+ SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
}
else
sv_inc(TOPs);
PP(pp_or)
{
- dSP;
+ djSP;
if (SvTRUE(TOPs))
RETURN;
else {
PP(pp_add)
{
- dSP; dATARGET; tryAMAGICbin(add,opASSIGN);
+ djSP; dATARGET; tryAMAGICbin(add,opASSIGN);
{
- dPOPTOPnnrl;
+ dPOPTOPnnrl_ul;
SETn( left + right );
RETURN;
}
PP(pp_aelemfast)
{
- dSP;
- AV *av = GvAV((GV*)cSVOP->op_sv);
- SV** svp = av_fetch(av, op->op_private, op->op_flags & OPf_MOD);
- PUSHs(svp ? *svp : &sv_undef);
+ djSP;
+ AV *av = GvAV(cGVOP_gv);
+ U32 lval = PL_op->op_flags & OPf_MOD;
+ SV** svp = av_fetch(av, PL_op->op_private, lval);
+ SV *sv = (svp ? *svp : &PL_sv_undef);
+ EXTEND(SP, 1);
+ if (!lval && SvGMAGICAL(sv)) /* see note in pp_helem() */
+ sv = sv_mortalcopy(sv);
+ PUSHs(sv);
RETURN;
}
PP(pp_join)
{
- dSP; dMARK; dTARGET;
+ djSP; dMARK; dTARGET;
MARK++;
do_join(TARG, *MARK, MARK, SP);
SP = MARK;
PP(pp_pushre)
{
- dSP;
- XPUSHs((SV*)op);
+ djSP;
+#ifdef DEBUGGING
+ /*
+ * We ass_u_me that LvTARGOFF() comes first, and that two STRLENs
+ * will be enough to hold an OP*.
+ */
+ SV* sv = sv_newmortal();
+ sv_upgrade(sv, SVt_PVLV);
+ LvTYPE(sv) = '/';
+ Copy(&PL_op, &LvTARGOFF(sv), 1, OP*);
+ XPUSHs(sv);
+#else
+ XPUSHs((SV*)PL_op);
+#endif
RETURN;
}
PP(pp_print)
{
- dSP; dMARK; dORIGMARK;
+ djSP; dMARK; dORIGMARK;
GV *gv;
IO *io;
- register FILE *fp;
+ register PerlIO *fp;
+ MAGIC *mg;
+ STRLEN n_a;
- if (op->op_flags & OPf_STACKED)
+ if (PL_op->op_flags & OPf_STACKED)
gv = (GV*)*++MARK;
else
- gv = defoutgv;
+ gv = PL_defoutgv;
+ if ((mg = SvTIED_mg((SV*)gv, 'q'))) {
+ if (MARK == ORIGMARK) {
+ /* If using default handle then we need to make space to
+ * pass object as 1st arg, so move other args up ...
+ */
+ MEXTEND(SP, 1);
+ ++MARK;
+ Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
+ ++SP;
+ }
+ PUSHMARK(MARK - 1);
+ *MARK = SvTIED_obj((SV*)gv, mg);
+ PUTBACK;
+ ENTER;
+ call_method("PRINT", G_SCALAR);
+ LEAVE;
+ SPAGAIN;
+ MARK = ORIGMARK + 1;
+ *MARK = *SP;
+ SP = MARK;
+ RETURN;
+ }
if (!(io = GvIO(gv))) {
- if (dowarn) {
+ if (ckWARN(WARN_UNOPENED)) {
SV* sv = sv_newmortal();
- gv_fullname(sv,gv);
- warn("Filehandle %s never opened", SvPV(sv,na));
+ gv_efullname3(sv, gv, Nullch);
+ Perl_warner(aTHX_ WARN_UNOPENED, "Filehandle %s never opened",
+ SvPV(sv,n_a));
}
-
SETERRNO(EBADF,RMS$_IFI);
goto just_say_no;
}
else if (!(fp = IoOFP(io))) {
- if (dowarn) {
- SV* sv = sv_newmortal();
- gv_fullname(sv,gv);
- if (IoIFP(io))
- warn("Filehandle %s opened only for input", SvPV(sv,na));
- else
- warn("print on closed filehandle %s", SvPV(sv,na));
+ if (ckWARN2(WARN_CLOSED, WARN_IO)) {
+ if (IoIFP(io)) {
+ SV* sv = sv_newmortal();
+ gv_efullname3(sv, gv, Nullch);
+ Perl_warner(aTHX_ WARN_IO,
+ "Filehandle %s opened only for input",
+ SvPV(sv,n_a));
+ }
+ else if (ckWARN(WARN_CLOSED))
+ report_closed_fh(gv, io, "print", "filehandle");
}
SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI);
goto just_say_no;
}
else {
MARK++;
- if (ofslen) {
+ if (PL_ofslen) {
while (MARK <= SP) {
if (!do_print(*MARK, fp))
break;
MARK++;
if (MARK <= SP) {
- if (fwrite1(ofs, 1, ofslen, fp) == 0 || ferror(fp)) {
+ if (PerlIO_write(fp, PL_ofs, PL_ofslen) == 0 || PerlIO_error(fp)) {
MARK--;
break;
}
if (MARK <= SP)
goto just_say_no;
else {
- if (orslen)
- if (fwrite1(ors, 1, orslen, fp) == 0 || ferror(fp))
+ if (PL_orslen)
+ if (PerlIO_write(fp, PL_ors, PL_orslen) == 0 || PerlIO_error(fp))
goto just_say_no;
if (IoFLAGS(io) & IOf_FLUSH)
- if (fflush(fp) == EOF)
+ if (PerlIO_flush(fp) == EOF)
goto just_say_no;
}
}
SP = ORIGMARK;
- PUSHs(&sv_yes);
+ PUSHs(&PL_sv_yes);
RETURN;
just_say_no:
SP = ORIGMARK;
- PUSHs(&sv_undef);
+ PUSHs(&PL_sv_undef);
RETURN;
}
PP(pp_rv2av)
{
- dSP; dPOPss;
-
+ djSP; dTOPss;
AV *av;
if (SvROK(sv)) {
wasref:
+ tryAMAGICunDEREF(to_av);
+
av = (AV*)SvRV(sv);
if (SvTYPE(av) != SVt_PVAV)
- DIE("Not an ARRAY reference");
- if (op->op_private & OPpLVAL_INTRO)
- av = (AV*)save_svref((SV**)sv);
- if (op->op_flags & OPf_REF) {
- PUSHs((SV*)av);
+ DIE(aTHX_ "Not an ARRAY reference");
+ if (PL_op->op_flags & OPf_REF) {
+ SETs((SV*)av);
RETURN;
}
}
else {
if (SvTYPE(sv) == SVt_PVAV) {
av = (AV*)sv;
- if (op->op_flags & OPf_REF) {
- PUSHs((SV*)av);
+ if (PL_op->op_flags & OPf_REF) {
+ SETs((SV*)av);
RETURN;
}
}
else {
+ GV *gv;
+
if (SvTYPE(sv) != SVt_PVGV) {
char *sym;
+ STRLEN len;
if (SvGMAGICAL(sv)) {
mg_get(sv);
goto wasref;
}
if (!SvOK(sv)) {
- if (op->op_flags & OPf_REF ||
- op->op_private & HINT_STRICT_REFS)
- DIE(no_usym, "an ARRAY");
- RETPUSHUNDEF;
+ if (PL_op->op_flags & OPf_REF ||
+ PL_op->op_private & HINT_STRICT_REFS)
+ DIE(aTHX_ PL_no_usym, "an ARRAY");
+ if (ckWARN(WARN_UNINITIALIZED))
+ report_uninit();
+ if (GIMME == G_ARRAY) {
+ (void)POPs;
+ RETURN;
+ }
+ RETSETUNDEF;
}
- sym = SvPV(sv,na);
- if (op->op_private & HINT_STRICT_REFS)
- DIE(no_symref, sym, "an ARRAY");
- sv = (SV*)gv_fetchpv(sym, TRUE, SVt_PVAV);
- }
- av = GvAVn(sv);
- if (op->op_private & OPpLVAL_INTRO)
- av = save_ary(sv);
- if (op->op_flags & OPf_REF) {
- PUSHs((SV*)av);
+ sym = SvPV(sv,len);
+ if ((PL_op->op_flags & OPf_SPECIAL) &&
+ !(PL_op->op_flags & OPf_MOD))
+ {
+ gv = (GV*)gv_fetchpv(sym, FALSE, SVt_PVAV);
+ if (!gv
+ && (!is_gv_magical(sym,len,0)
+ || !(gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVAV))))
+ {
+ RETSETUNDEF;
+ }
+ }
+ else {
+ if (PL_op->op_private & HINT_STRICT_REFS)
+ DIE(aTHX_ PL_no_symref, sym, "an ARRAY");
+ gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVAV);
+ }
+ }
+ else {
+ gv = (GV*)sv;
+ }
+ av = GvAVn(gv);
+ if (PL_op->op_private & OPpLVAL_INTRO)
+ av = save_ary(gv);
+ if (PL_op->op_flags & OPf_REF) {
+ SETs((SV*)av);
RETURN;
}
}
if (GIMME == G_ARRAY) {
I32 maxarg = AvFILL(av) + 1;
- EXTEND(SP, maxarg);
- Copy(AvARRAY(av), SP+1, maxarg, SV*);
+ (void)POPs; /* XXXX May be optimized away? */
+ EXTEND(SP, maxarg);
+ if (SvRMAGICAL(av)) {
+ U32 i;
+ for (i=0; i < maxarg; i++) {
+ SV **svp = av_fetch(av, i, FALSE);
+ SP[i+1] = (svp) ? *svp : &PL_sv_undef;
+ }
+ }
+ else {
+ Copy(AvARRAY(av), SP+1, maxarg, SV*);
+ }
SP += maxarg;
}
else {
dTARGET;
I32 maxarg = AvFILL(av) + 1;
- PUSHi(maxarg);
+ SETi(maxarg);
}
RETURN;
}
PP(pp_rv2hv)
{
-
- dSP; dTOPss;
-
+ djSP; dTOPss;
HV *hv;
if (SvROK(sv)) {
wasref:
+ tryAMAGICunDEREF(to_hv);
+
hv = (HV*)SvRV(sv);
- if (SvTYPE(hv) != SVt_PVHV)
- DIE("Not a HASH reference");
- if (op->op_private & OPpLVAL_INTRO)
- hv = (HV*)save_svref((SV**)sv);
- if (op->op_flags & OPf_REF) {
+ if (SvTYPE(hv) != SVt_PVHV && SvTYPE(hv) != SVt_PVAV)
+ DIE(aTHX_ "Not a HASH reference");
+ if (PL_op->op_flags & OPf_REF) {
SETs((SV*)hv);
RETURN;
}
}
else {
- if (SvTYPE(sv) == SVt_PVHV) {
+ if (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) {
hv = (HV*)sv;
- if (op->op_flags & OPf_REF) {
+ if (PL_op->op_flags & OPf_REF) {
SETs((SV*)hv);
RETURN;
}
}
else {
+ GV *gv;
+
if (SvTYPE(sv) != SVt_PVGV) {
char *sym;
+ STRLEN len;
if (SvGMAGICAL(sv)) {
mg_get(sv);
goto wasref;
}
if (!SvOK(sv)) {
- if (op->op_flags & OPf_REF ||
- op->op_private & HINT_STRICT_REFS)
- DIE(no_usym, "a HASH");
+ if (PL_op->op_flags & OPf_REF ||
+ PL_op->op_private & HINT_STRICT_REFS)
+ DIE(aTHX_ PL_no_usym, "a HASH");
+ if (ckWARN(WARN_UNINITIALIZED))
+ report_uninit();
+ if (GIMME == G_ARRAY) {
+ SP--;
+ RETURN;
+ }
RETSETUNDEF;
}
- sym = SvPV(sv,na);
- if (op->op_private & HINT_STRICT_REFS)
- DIE(no_symref, sym, "a HASH");
- sv = (SV*)gv_fetchpv(sym, TRUE, SVt_PVHV);
- }
- hv = GvHVn(sv);
- if (op->op_private & OPpLVAL_INTRO)
- hv = save_hash(sv);
- if (op->op_flags & OPf_REF) {
+ sym = SvPV(sv,len);
+ if ((PL_op->op_flags & OPf_SPECIAL) &&
+ !(PL_op->op_flags & OPf_MOD))
+ {
+ gv = (GV*)gv_fetchpv(sym, FALSE, SVt_PVHV);
+ if (!gv
+ && (!is_gv_magical(sym,len,0)
+ || !(gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVHV))))
+ {
+ RETSETUNDEF;
+ }
+ }
+ else {
+ if (PL_op->op_private & HINT_STRICT_REFS)
+ DIE(aTHX_ PL_no_symref, sym, "a HASH");
+ gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVHV);
+ }
+ }
+ else {
+ gv = (GV*)sv;
+ }
+ hv = GvHVn(gv);
+ if (PL_op->op_private & OPpLVAL_INTRO)
+ hv = save_hash(gv);
+ if (PL_op->op_flags & OPf_REF) {
SETs((SV*)hv);
RETURN;
}
}
if (GIMME == G_ARRAY) { /* array wanted */
- *stack_sp = (SV*)hv;
- return do_kv(ARGS);
+ *PL_stack_sp = (SV*)hv;
+ return do_kv();
}
else {
dTARGET;
- if (HvFILL(hv)) {
- sprintf(buf, "%d/%d", HvFILL(hv), HvMAX(hv)+1);
- sv_setpv(TARG, buf);
- }
+ if (SvTYPE(hv) == SVt_PVAV)
+ hv = avhv_keys((AV*)hv);
+ if (HvFILL(hv))
+ Perl_sv_setpvf(aTHX_ TARG, "%"IVdf"/%"IVdf,
+ (IV)HvFILL(hv), (IV)HvMAX(hv) + 1);
else
sv_setiv(TARG, 0);
+
SETTARG;
RETURN;
}
}
+STATIC int
+S_do_maybe_phash(pTHX_ AV *ary, SV **lelem, SV **firstlelem, SV **relem,
+ SV **lastrelem)
+{
+ OP *leftop;
+ I32 i;
+
+ leftop = ((BINOP*)PL_op)->op_last;
+ assert(leftop);
+ assert(leftop->op_type == OP_NULL && leftop->op_targ == OP_LIST);
+ leftop = ((LISTOP*)leftop)->op_first;
+ assert(leftop);
+ /* Skip PUSHMARK and each element already assigned to. */
+ for (i = lelem - firstlelem; i > 0; i--) {
+ leftop = leftop->op_sibling;
+ assert(leftop);
+ }
+ if (leftop->op_type != OP_RV2HV)
+ return 0;
+
+ /* pseudohash */
+ if (av_len(ary) > 0)
+ av_fill(ary, 0); /* clear all but the fields hash */
+ if (lastrelem >= relem) {
+ while (relem < lastrelem) { /* gobble up all the rest */
+ SV *tmpstr;
+ assert(relem[0]);
+ assert(relem[1]);
+ /* Avoid a memory leak when avhv_store_ent dies. */
+ tmpstr = sv_newmortal();
+ sv_setsv(tmpstr,relem[1]); /* value */
+ relem[1] = tmpstr;
+ if (avhv_store_ent(ary,relem[0],tmpstr,0))
+ (void)SvREFCNT_inc(tmpstr);
+ if (SvMAGICAL(ary) != 0 && SvSMAGICAL(tmpstr))
+ mg_set(tmpstr);
+ relem += 2;
+ TAINT_NOT;
+ }
+ }
+ if (relem == lastrelem)
+ return 1;
+ return 2;
+}
+
+STATIC void
+S_do_oddball(pTHX_ HV *hash, SV **relem, SV **firstrelem)
+{
+ if (*relem) {
+ SV *tmpstr;
+ if (ckWARN(WARN_MISC)) {
+ if (relem == firstrelem &&
+ SvROK(*relem) &&
+ (SvTYPE(SvRV(*relem)) == SVt_PVAV ||
+ SvTYPE(SvRV(*relem)) == SVt_PVHV))
+ {
+ Perl_warner(aTHX_ WARN_MISC,
+ "Reference found where even-sized list expected");
+ }
+ else
+ Perl_warner(aTHX_ WARN_MISC,
+ "Odd number of elements in hash assignment");
+ }
+ if (SvTYPE(hash) == SVt_PVAV) {
+ /* pseudohash */
+ tmpstr = sv_newmortal();
+ if (avhv_store_ent((AV*)hash,*relem,tmpstr,0))
+ (void)SvREFCNT_inc(tmpstr);
+ if (SvMAGICAL(hash) && SvSMAGICAL(tmpstr))
+ mg_set(tmpstr);
+ }
+ else {
+ HE *didstore;
+ tmpstr = NEWSV(29,0);
+ didstore = hv_store_ent(hash,*relem,tmpstr,0);
+ if (SvMAGICAL(hash)) {
+ if (SvSMAGICAL(tmpstr))
+ mg_set(tmpstr);
+ if (!didstore)
+ sv_2mortal(tmpstr);
+ }
+ }
+ TAINT_NOT;
+ }
+}
+
PP(pp_aassign)
{
- dSP;
- SV **lastlelem = stack_sp;
- SV **lastrelem = stack_base + POPMARK;
- SV **firstrelem = stack_base + POPMARK + 1;
+ djSP;
+ SV **lastlelem = PL_stack_sp;
+ SV **lastrelem = PL_stack_base + POPMARK;
+ SV **firstrelem = PL_stack_base + POPMARK + 1;
SV **firstlelem = lastrelem + 1;
register SV **relem;
register SV *sv;
register AV *ary;
+ I32 gimme;
HV *hash;
I32 i;
int magic;
- delaymagic = DM_DELAY; /* catch simultaneous items */
+ PL_delaymagic = DM_DELAY; /* catch simultaneous items */
/* If there's a common identifier on both sides we have to take
* special care that assigning the identifier on the left doesn't
* clobber a value on the right that's used later in the list.
*/
- if (op->op_private & OPpASSIGN_COMMON) {
- for (relem = firstrelem; relem <= lastrelem; relem++) {
- /*SUPPRESS 560*/
- if (sv = *relem)
- *relem = sv_mortalcopy(sv);
- }
+ if (PL_op->op_private & (OPpASSIGN_COMMON)) {
+ EXTEND_MORTAL(lastrelem - firstrelem + 1);
+ for (relem = firstrelem; relem <= lastrelem; relem++) {
+ /*SUPPRESS 560*/
+ if ((sv = *relem)) {
+ TAINT_NOT; /* Each item is independent */
+ *relem = sv_mortalcopy(sv);
+ }
+ }
}
relem = firstrelem;
lelem = firstlelem;
ary = Null(AV*);
hash = Null(HV*);
+
while (lelem <= lastlelem) {
+ TAINT_NOT; /* Each item stands on its own, taintwise. */
sv = *lelem++;
switch (SvTYPE(sv)) {
case SVt_PVAV:
ary = (AV*)sv;
magic = SvMAGICAL(ary) != 0;
-
+ if (PL_op->op_private & OPpASSIGN_HASH) {
+ switch (do_maybe_phash(ary, lelem, firstlelem, relem,
+ lastrelem))
+ {
+ case 0:
+ goto normal_array;
+ case 1:
+ do_oddball((HV*)ary, relem, firstrelem);
+ }
+ relem = lastrelem + 1;
+ break;
+ }
+ normal_array:
av_clear(ary);
+ av_extend(ary, lastrelem - relem);
i = 0;
while (relem <= lastrelem) { /* gobble up all the rest */
+ SV **didstore;
sv = NEWSV(28,0);
assert(*relem);
sv_setsv(sv,*relem);
*(relem++) = sv;
- (void)av_store(ary,i++,sv);
- if (magic)
- mg_set(sv);
+ didstore = av_store(ary,i++,sv);
+ if (magic) {
+ if (SvSMAGICAL(sv))
+ mg_set(sv);
+ if (!didstore)
+ sv_2mortal(sv);
+ }
+ TAINT_NOT;
}
break;
- case SVt_PVHV: {
- char *tmps;
+ case SVt_PVHV: { /* normal hash */
SV *tmpstr;
hash = (HV*)sv;
hv_clear(hash);
while (relem < lastrelem) { /* gobble up all the rest */
- STRLEN len;
+ HE *didstore;
if (*relem)
sv = *(relem++);
else
- sv = &sv_no, relem++;
- tmps = SvPV(sv, len);
+ sv = &PL_sv_no, relem++;
tmpstr = NEWSV(29,0);
if (*relem)
sv_setsv(tmpstr,*relem); /* value */
*(relem++) = tmpstr;
- (void)hv_store(hash,tmps,len,tmpstr,0);
- if (magic)
- mg_set(tmpstr);
+ didstore = hv_store_ent(hash,sv,tmpstr,0);
+ if (magic) {
+ if (SvSMAGICAL(tmpstr))
+ mg_set(tmpstr);
+ if (!didstore)
+ sv_2mortal(tmpstr);
+ }
+ TAINT_NOT;
+ }
+ if (relem == lastrelem) {
+ do_oddball(hash, relem, firstrelem);
+ relem++;
}
}
break;
default:
- if (SvTHINKFIRST(sv)) {
- if (SvREADONLY(sv) && curcop != &compiling) {
- if (sv != &sv_undef && sv != &sv_yes && sv != &sv_no)
- DIE(no_modify);
- if (relem <= lastrelem)
- relem++;
- break;
- }
- if (SvROK(sv))
- sv_unref(sv);
+ if (SvIMMORTAL(sv)) {
+ if (relem <= lastrelem)
+ relem++;
+ break;
}
if (relem <= lastrelem) {
sv_setsv(sv, *relem);
*(relem++) = sv;
}
else
- sv_setsv(sv, &sv_undef);
+ sv_setsv(sv, &PL_sv_undef);
SvSETMAGIC(sv);
break;
}
}
- if (delaymagic & ~DM_DELAY) {
- if (delaymagic & DM_UID) {
+ if (PL_delaymagic & ~DM_DELAY) {
+ if (PL_delaymagic & DM_UID) {
#ifdef HAS_SETRESUID
- (void)setresuid(uid,euid,(Uid_t)-1);
-#else /* not HAS_SETRESUID */
-#ifdef HAS_SETREUID
- (void)setreuid(uid,euid);
-#else /* not HAS_SETREUID */
-#ifdef HAS_SETRUID
- if ((delaymagic & DM_UID) == DM_RUID) {
- (void)setruid(uid);
- delaymagic &= ~DM_RUID;
- }
-#endif /* HAS_SETRUID */
+ (void)setresuid(PL_uid,PL_euid,(Uid_t)-1);
+#else
+# ifdef HAS_SETREUID
+ (void)setreuid(PL_uid,PL_euid);
+# else
+# ifdef HAS_SETRUID
+ if ((PL_delaymagic & DM_UID) == DM_RUID) {
+ (void)setruid(PL_uid);
+ PL_delaymagic &= ~DM_RUID;
+ }
+# endif /* HAS_SETRUID */
+# ifdef HAS_SETEUID
+ if ((PL_delaymagic & DM_UID) == DM_EUID) {
+ (void)seteuid(PL_uid);
+ PL_delaymagic &= ~DM_EUID;
+ }
+# endif /* HAS_SETEUID */
+ if (PL_delaymagic & DM_UID) {
+ if (PL_uid != PL_euid)
+ DIE(aTHX_ "No setreuid available");
+ (void)PerlProc_setuid(PL_uid);
+ }
+# endif /* HAS_SETREUID */
#endif /* HAS_SETRESUID */
-#ifdef HAS_SETEUID
- if ((delaymagic & DM_UID) == DM_EUID) {
- (void)seteuid(uid);
- delaymagic &= ~DM_EUID;
- }
-#endif /* HAS_SETEUID */
- if (delaymagic & DM_UID) {
- if (uid != euid)
- DIE("No setreuid available");
- (void)setuid(uid);
- }
-#endif /* not HAS_SETREUID */
- uid = (int)getuid();
- euid = (int)geteuid();
- }
- if (delaymagic & DM_GID) {
-#ifdef HAS_SETRESGID
- (void)setresgid(gid,egid,(Gid_t)-1);
-#else /* not HAS_SETREGID */
-#ifdef HAS_SETREGID
- (void)setregid(gid,egid);
-#else /* not HAS_SETREGID */
-#endif /* not HAS_SETRESGID */
-#ifdef HAS_SETRGID
- if ((delaymagic & DM_GID) == DM_RGID) {
- (void)setrgid(gid);
- delaymagic &= ~DM_RGID;
- }
-#endif /* HAS_SETRGID */
+ PL_uid = PerlProc_getuid();
+ PL_euid = PerlProc_geteuid();
+ }
+ if (PL_delaymagic & DM_GID) {
#ifdef HAS_SETRESGID
- (void)setresgid(gid,egid,(Gid_t)-1);
-#else /* not HAS_SETREGID */
-#ifdef HAS_SETEGID
- if ((delaymagic & DM_GID) == DM_EGID) {
- (void)setegid(gid);
- delaymagic &= ~DM_EGID;
- }
-#endif /* HAS_SETEGID */
- if (delaymagic & DM_GID) {
- if (gid != egid)
- DIE("No setregid available");
- (void)setgid(gid);
- }
-#endif /* not HAS_SETRESGID */
-#endif /* not HAS_SETREGID */
- gid = (int)getgid();
- egid = (int)getegid();
- }
- tainting |= (euid != uid || egid != gid);
- }
- delaymagic = 0;
- if (GIMME == G_ARRAY) {
+ (void)setresgid(PL_gid,PL_egid,(Gid_t)-1);
+#else
+# ifdef HAS_SETREGID
+ (void)setregid(PL_gid,PL_egid);
+# else
+# ifdef HAS_SETRGID
+ if ((PL_delaymagic & DM_GID) == DM_RGID) {
+ (void)setrgid(PL_gid);
+ PL_delaymagic &= ~DM_RGID;
+ }
+# endif /* HAS_SETRGID */
+# ifdef HAS_SETEGID
+ if ((PL_delaymagic & DM_GID) == DM_EGID) {
+ (void)setegid(PL_gid);
+ PL_delaymagic &= ~DM_EGID;
+ }
+# endif /* HAS_SETEGID */
+ if (PL_delaymagic & DM_GID) {
+ if (PL_gid != PL_egid)
+ DIE(aTHX_ "No setregid available");
+ (void)PerlProc_setgid(PL_gid);
+ }
+# endif /* HAS_SETREGID */
+#endif /* HAS_SETRESGID */
+ PL_gid = PerlProc_getgid();
+ PL_egid = PerlProc_getegid();
+ }
+ PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
+ }
+ PL_delaymagic = 0;
+
+ gimme = GIMME_V;
+ if (gimme == G_VOID)
+ SP = firstrelem - 1;
+ else if (gimme == G_SCALAR) {
+ dTARGET;
+ SP = firstrelem;
+ SETi(lastrelem - firstrelem + 1);
+ }
+ else {
if (ary || hash)
SP = lastrelem;
else
SP = firstrelem + (lastlelem - firstlelem);
- RETURN;
- }
- else {
- SP = firstrelem;
- for (relem = firstrelem; relem <= lastrelem; ++relem) {
- if (SvOK(*relem)) {
- dTARGET;
-
- SETi(lastrelem - firstrelem + 1);
- RETURN;
- }
- }
- RETSETUNDEF;
+ lelem = firstlelem + (relem - firstrelem);
+ while (relem <= SP)
+ *relem++ = (lelem <= lastlelem) ? *lelem++ : &PL_sv_undef;
}
+ RETURN;
+}
+
+PP(pp_qr)
+{
+ djSP;
+ register PMOP *pm = cPMOP;
+ SV *rv = sv_newmortal();
+ SV *sv = newSVrv(rv, "Regexp");
+ sv_magic(sv,(SV*)ReREFCNT_inc(pm->op_pmregexp),'r',0,0);
+ RETURNX(PUSHs(rv));
}
PP(pp_match)
{
- dSP; dTARG;
+ djSP; dTARG;
register PMOP *pm = cPMOP;
register char *t;
register char *s;
char *strend;
I32 global;
- I32 safebase;
- char *truebase;
+ I32 r_flags = REXEC_CHECKED;
+ char *truebase; /* Start of string */
register REGEXP *rx = pm->op_pmregexp;
+ bool rxtainted;
I32 gimme = GIMME;
STRLEN len;
I32 minmatch = 0;
+ I32 oldsave = PL_savestack_ix;
+ I32 update_minmatch = 1;
+ I32 had_zerolen = 0;
- if (op->op_flags & OPf_STACKED)
+ if (PL_op->op_flags & OPf_STACKED)
TARG = POPs;
else {
- TARG = GvSV(defgv);
+ TARG = DEFSV;
EXTEND(SP,1);
}
+ PUTBACK; /* EVAL blocks need stack_sp. */
s = SvPV(TARG, len);
strend = s + len;
if (!s)
- DIE("panic: do_match");
+ DIE(aTHX_ "panic: do_match");
+ rxtainted = ((pm->op_pmdynflags & PMdf_TAINTED) ||
+ (PL_tainted && (pm->op_pmflags & PMf_RETAINT)));
+ TAINT_NOT;
- if (pm->op_pmflags & PMf_USED) {
+ if (pm->op_pmdynflags & PMdf_USED) {
+ failure:
if (gimme == G_ARRAY)
RETURN;
RETPUSHNO;
}
- if (!rx->prelen && curpm) {
- pm = curpm;
+ if (!rx->prelen && PL_curpm) {
+ pm = PL_curpm;
rx = pm->op_pmregexp;
}
+ if (rx->minlen > len) goto failure;
+
truebase = t = s;
- if (global = pm->op_pmflags & PMf_GLOBAL) {
- rx->startp[0] = 0;
+
+ /* XXXX What part of this is needed with true \G-support? */
+ if ((global = pm->op_pmflags & PMf_GLOBAL)) {
+ rx->startp[0] = -1;
if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) {
MAGIC* mg = mg_find(TARG, 'g');
if (mg && mg->mg_len >= 0) {
- rx->endp[0] = rx->startp[0] = s + mg->mg_len;
+ if (!(rx->reganch & ROPT_GPOS_SEEN))
+ rx->endp[0] = rx->startp[0] = mg->mg_len;
+ else if (rx->reganch & ROPT_ANCH_GPOS) {
+ r_flags |= REXEC_IGNOREPOS;
+ rx->endp[0] = rx->startp[0] = mg->mg_len;
+ }
minmatch = (mg->mg_flags & MGf_MINMATCH);
+ update_minmatch = 0;
}
}
}
- if (!rx->nparens && !global)
- gimme = G_SCALAR; /* accidental array context? */
- safebase = (gimme == G_ARRAY) || global;
+ if ((gimme != G_ARRAY && !global && rx->nparens)
+ || SvTEMP(TARG) || PL_sawampersand)
+ r_flags |= REXEC_COPY_STR;
+ if (SvSCREAM(TARG))
+ r_flags |= REXEC_SCREAM;
+
if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) {
- SAVEINT(multiline);
- multiline = pm->op_pmflags & PMf_MULTILINE;
+ SAVEINT(PL_multiline);
+ PL_multiline = pm->op_pmflags & PMf_MULTILINE;
}
play_it_again:
- if (global && rx->startp[0]) {
- t = s = rx->endp[0];
- if (s > strend)
+ if (global && rx->startp[0] != -1) {
+ t = s = rx->endp[0] + truebase;
+ if ((s + rx->minlen) > strend)
goto nope;
- minmatch = (s == rx->startp[0]);
- }
- if (pm->op_pmshort) {
- if (pm->op_pmflags & PMf_SCANFIRST) {
- if (SvSCREAM(TARG)) {
- if (screamfirst[BmRARE(pm->op_pmshort)] < 0)
- goto nope;
- else if (!(s = screaminstr(TARG, pm->op_pmshort)))
- goto nope;
- else if (pm->op_pmflags & PMf_ALL)
- goto yup;
- }
- else if (!(s = fbm_instr((unsigned char*)s,
- (unsigned char*)strend, pm->op_pmshort)))
- goto nope;
- else if (pm->op_pmflags & PMf_ALL)
- goto yup;
- if (s && rx->regback >= 0) {
- ++BmUSEFUL(pm->op_pmshort);
- s -= rx->regback;
- if (s < t)
- s = t;
- }
- else
- s = t;
- }
- else if (!multiline) {
- if (*SvPVX(pm->op_pmshort) != *s ||
- bcmp(SvPVX(pm->op_pmshort), s, pm->op_pmslen) ) {
- if (pm->op_pmflags & PMf_FOLD) {
- if (ibcmp((U8*)SvPVX(pm->op_pmshort), (U8*)s, pm->op_pmslen) )
- goto nope;
- }
- else
- goto nope;
- }
- }
- if (!rx->naughty && --BmUSEFUL(pm->op_pmshort) < 0) {
- SvREFCNT_dec(pm->op_pmshort);
- pm->op_pmshort = Nullsv; /* opt is being useless */
- }
+ if (update_minmatch++)
+ minmatch = had_zerolen;
}
- if (regexec(rx, s, strend, truebase, minmatch,
- SvSCREAM(TARG) ? TARG : Nullsv,
- safebase)) {
- curpm = pm;
+ if (rx->reganch & RE_USE_INTUIT) {
+ s = CALLREG_INTUIT_START(aTHX_ rx, TARG, s, strend, r_flags, NULL);
+
+ if (!s)
+ goto nope;
+ if ( (rx->reganch & ROPT_CHECK_ALL)
+ && !PL_sawampersand
+ && ((rx->reganch & ROPT_NOSCAN)
+ || !((rx->reganch & RE_INTUIT_TAIL)
+ && (r_flags & REXEC_SCREAM)))
+ && !SvROK(TARG)) /* Cannot trust since INTUIT cannot guess ^ */
+ goto yup;
+ }
+ if (CALLREGEXEC(aTHX_ rx, s, strend, truebase, minmatch, TARG, NULL, r_flags))
+ {
+ PL_curpm = pm;
if (pm->op_pmflags & PMf_ONCE)
- pm->op_pmflags |= PMf_USED;
+ pm->op_pmdynflags |= PMdf_USED;
goto gotcha;
}
else
/*NOTREACHED*/
gotcha:
+ if (rxtainted)
+ RX_MATCH_TAINTED_on(rx);
+ TAINT_IF(RX_MATCH_TAINTED(rx));
if (gimme == G_ARRAY) {
I32 iters, i, len;
i = 1;
else
i = 0;
+ SPAGAIN; /* EVAL blocks could move the stack. */
EXTEND(SP, iters + i);
+ EXTEND_MORTAL(iters + i);
for (i = !i; i <= iters; i++) {
PUSHs(sv_newmortal());
/*SUPPRESS 560*/
- if ((s = rx->startp[i]) && rx->endp[i] ) {
- len = rx->endp[i] - s;
+ if ((rx->startp[i] != -1) && rx->endp[i] != -1 ) {
+ len = rx->endp[i] - rx->startp[i];
+ s = rx->startp[i] + truebase;
sv_setpvn(*SP, s, len);
+ if ((pm->op_pmdynflags & PMdf_UTF8) && !IN_BYTE) {
+ SvUTF8_on(*SP);
+ sv_utf8_downgrade(*SP, TRUE);
+ }
}
}
if (global) {
- truebase = rx->subbeg;
- if (rx->startp[0] && rx->startp[0] == rx->endp[0])
- ++rx->endp[0];
+ had_zerolen = (rx->startp[0] != -1
+ && rx->startp[0] == rx->endp[0]);
+ PUTBACK; /* EVAL blocks may use stack */
+ r_flags |= REXEC_IGNOREPOS | REXEC_NOT_FIRST;
goto play_it_again;
}
+ else if (!iters)
+ XPUSHs(&PL_sv_yes);
+ LEAVE_SCOPE(oldsave);
RETURN;
}
else {
sv_magic(TARG, (SV*)0, 'g', Nullch, 0);
mg = mg_find(TARG, 'g');
}
- if (rx->startp[0]) {
- mg->mg_len = rx->endp[0] - truebase;
+ if (rx->startp[0] != -1) {
+ mg->mg_len = rx->endp[0];
if (rx->startp[0] == rx->endp[0])
mg->mg_flags |= MGf_MINMATCH;
else
mg->mg_flags &= ~MGf_MINMATCH;
}
- else
- mg->mg_len = -1;
}
+ LEAVE_SCOPE(oldsave);
RETPUSHYES;
}
-yup:
- ++BmUSEFUL(pm->op_pmshort);
- curpm = pm;
+yup: /* Confirmed by INTUIT */
+ if (rxtainted)
+ RX_MATCH_TAINTED_on(rx);
+ TAINT_IF(RX_MATCH_TAINTED(rx));
+ PL_curpm = pm;
if (pm->op_pmflags & PMf_ONCE)
- pm->op_pmflags |= PMf_USED;
+ pm->op_pmdynflags |= PMdf_USED;
+ if (RX_MATCH_COPIED(rx))
+ Safefree(rx->subbeg);
+ RX_MATCH_COPIED_off(rx);
+ rx->subbeg = Nullch;
if (global) {
rx->subbeg = truebase;
- rx->subend = strend;
- rx->startp[0] = s;
- rx->endp[0] = s + SvCUR(pm->op_pmshort);
+ rx->startp[0] = s - truebase;
+ rx->endp[0] = s - truebase + rx->minlen;
+ rx->sublen = strend - truebase;
goto gotcha;
- }
- if (sawampersand) {
- char *tmps;
+ }
+ if (PL_sawampersand) {
+ I32 off;
- if (rx->subbase)
- Safefree(rx->subbase);
- tmps = rx->subbase = savepvn(t, strend-t);
- rx->subbeg = tmps;
- rx->subend = tmps + (strend-t);
- tmps = rx->startp[0] = tmps + (s - t);
- rx->endp[0] = tmps + SvCUR(pm->op_pmshort);
+ rx->subbeg = savepvn(t, strend - t);
+ rx->sublen = strend - t;
+ RX_MATCH_COPIED_on(rx);
+ off = rx->startp[0] = s - t;
+ rx->endp[0] = off + rx->minlen;
}
+ else { /* startp/endp are used by @- @+. */
+ rx->startp[0] = s - truebase;
+ rx->endp[0] = s - truebase + rx->minlen;
+ }
+ rx->nparens = rx->lastparen = 0; /* used by @- and @+ */
+ LEAVE_SCOPE(oldsave);
RETPUSHYES;
nope:
- if (pm->op_pmshort)
- ++BmUSEFUL(pm->op_pmshort);
-
ret_no:
- if (global) {
+ if (global && !(pm->op_pmflags & PMf_CONTINUE)) {
if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) {
MAGIC* mg = mg_find(TARG, 'g');
if (mg)
mg->mg_len = -1;
}
}
+ LEAVE_SCOPE(oldsave);
if (gimme == G_ARRAY)
RETURN;
RETPUSHNO;
}
OP *
-do_readline()
+Perl_do_readline(pTHX)
{
dSP; dTARGETSTACKED;
register SV *sv;
STRLEN tmplen = 0;
STRLEN offset;
- FILE *fp;
- register IO *io = GvIO(last_in_gv);
- register I32 type = op->op_type;
+ PerlIO *fp;
+ register IO *io = GvIO(PL_last_in_gv);
+ register I32 type = PL_op->op_type;
+ I32 gimme = GIMME_V;
+ MAGIC *mg;
+ if ((mg = SvTIED_mg((SV*)PL_last_in_gv, 'q'))) {
+ PUSHMARK(SP);
+ XPUSHs(SvTIED_obj((SV*)PL_last_in_gv, mg));
+ PUTBACK;
+ ENTER;
+ call_method("READLINE", gimme);
+ LEAVE;
+ SPAGAIN;
+ if (gimme == G_SCALAR)
+ SvSetMagicSV_nosteal(TARG, TOPs);
+ RETURN;
+ }
fp = Nullfp;
if (io) {
fp = IoIFP(io);
if (!fp) {
if (IoFLAGS(io) & IOf_ARGV) {
if (IoFLAGS(io) & IOf_START) {
- IoFLAGS(io) &= ~IOf_START;
IoLINES(io) = 0;
- if (av_len(GvAVn(last_in_gv)) < 0) {
- SV *tmpstr = newSVpv("-", 1); /* assume stdin */
- av_push(GvAVn(last_in_gv), tmpstr);
+ if (av_len(GvAVn(PL_last_in_gv)) < 0) {
+ IoFLAGS(io) &= ~IOf_START;
+ do_open(PL_last_in_gv,"-",1,FALSE,O_RDONLY,0,Nullfp);
+ sv_setpvn(GvSV(PL_last_in_gv), "-", 1);
+ SvSETMAGIC(GvSV(PL_last_in_gv));
+ fp = IoIFP(io);
+ goto have_fp;
}
}
- fp = nextargv(last_in_gv);
+ fp = nextargv(PL_last_in_gv);
if (!fp) { /* Note: fp != IoIFP(io) */
- (void)do_close(last_in_gv, FALSE); /* now it does*/
- IoFLAGS(io) |= IOf_START;
+ (void)do_close(PL_last_in_gv, FALSE); /* now it does*/
}
}
else if (type == OP_GLOB) {
char *rstr = rslt + sizeof(unsigned short int), *begin, *end, *cp;
char tmpfnam[L_tmpnam] = "SYS$SCRATCH:";
$DESCRIPTOR(dfltdsc,"SYS$DISK:[]*.*;");
- FILE *tmpfp;
+ PerlIO *tmpfp;
STRLEN i;
struct dsc$descriptor_s wilddsc
= {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0};
((struct NAM *)((struct FAB *)cxt)->fab$l_nam)->nam$l_fnb
but that's unsupported, so I don't want to do it now and
have it bite someone in the future. */
- strcat(tmpfnam,tmpnam(NULL));
+ strcat(tmpfnam,PerlLIO_tmpnam(NULL));
cp = SvPV(tmpglob,i);
for (; i; i--) {
if (cp[i] == ';') hasver = 1;
break;
}
}
- if ((tmpfp = fopen(tmpfnam,"w+","fop=dlt")) != NULL) {
- ok = ((wilddsc.dsc$a_pointer = tovmsspec(SvPVX(tmpglob),vmsspec)) != NULL);
+ if ((tmpfp = PerlIO_open(tmpfnam,"w+","fop=dlt")) != NULL) {
+ Stat_t st;
+ if (!PerlLIO_stat(SvPVX(tmpglob),&st) && S_ISDIR(st.st_mode))
+ ok = ((wilddsc.dsc$a_pointer = tovmspath(SvPVX(tmpglob),vmsspec)) != NULL);
+ else ok = ((wilddsc.dsc$a_pointer = tovmsspec(SvPVX(tmpglob),vmsspec)) != NULL);
if (ok) wilddsc.dsc$w_length = (unsigned short int) strlen(wilddsc.dsc$a_pointer);
while (ok && ((sts = lib$find_file(&wilddsc,&rsdsc,&cxt,
&dfltdsc,NULL,NULL,NULL))&1)) {
*(end++) = '\n'; *end = '\0';
for (cp = rstr; *cp; cp++) *cp = _tolower(*cp);
if (hasdir) {
- if (isunix) trim_unixpath(SvPVX(tmpglob),rstr);
+ if (isunix) trim_unixpath(rstr,SvPVX(tmpglob),1);
begin = rstr;
}
else {
while (*(--begin) != ']' && *begin != '>') ;
++begin;
}
- ok = (fputs(begin,tmpfp) != EOF);
+ ok = (PerlIO_puts(tmpfp,begin) != EOF);
}
if (cxt) (void)lib$find_file_end(&cxt);
if (ok && sts != RMS$_NMF &&
sts != RMS$_DNF && sts != RMS$_FNF) ok = 0;
if (!ok) {
+ if (!(sts & 1)) {
+ SETERRNO((sts == RMS$_SYN ? EINVAL : EVMSERR),sts);
+ }
+ PerlIO_close(tmpfp);
fp = NULL;
}
else {
- rewind(tmpfp);
+ PerlIO_rewind(tmpfp);
IoTYPE(io) = '<';
IoIFP(io) = fp = tmpfp;
+ IoFLAGS(io) &= ~IOf_UNTAINT; /* maybe redundant */
}
}
}
#else /* !VMS */
+#ifdef MACOS_TRADITIONAL
+ sv_setpv(tmpcmd, "glob ");
+ sv_catsv(tmpcmd, tmpglob);
+ sv_catpv(tmpcmd, " |");
+#else
#ifdef DOSISH
+#ifdef OS2
+ sv_setpv(tmpcmd, "for a in ");
+ sv_catsv(tmpcmd, tmpglob);
+ sv_catpv(tmpcmd, "; do echo \"$a\\0\\c\"; done |");
+#else
+#ifdef DJGPP
+ sv_setpv(tmpcmd, "/dev/dosglob/"); /* File System Extension */
+ sv_catsv(tmpcmd, tmpglob);
+#else
sv_setpv(tmpcmd, "perlglob ");
sv_catsv(tmpcmd, tmpglob);
sv_catpv(tmpcmd, " |");
-#else
-#ifdef CSH
- sv_setpvn(tmpcmd, cshname, cshlen);
+#endif /* !DJGPP */
+#endif /* !OS2 */
+#else /* !DOSISH */
+#if defined(CSH)
+ sv_setpvn(tmpcmd, PL_cshname, PL_cshlen);
sv_catpv(tmpcmd, " -cf 'set nonomatch; glob ");
sv_catsv(tmpcmd, tmpglob);
- sv_catpv(tmpcmd, "'|");
+ sv_catpv(tmpcmd, "' 2>/dev/null |");
#else
sv_setpv(tmpcmd, "echo ");
sv_catsv(tmpcmd, tmpglob);
sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\n\\n\\n\\n'|");
#endif
#endif /* !CSH */
-#endif /* !MSDOS */
- (void)do_open(last_in_gv, SvPVX(tmpcmd), SvCUR(tmpcmd),Nullfp);
+#endif /* !DOSISH */
+#endif /* MACOS_TRADITIONAL */
+ (void)do_open(PL_last_in_gv, SvPVX(tmpcmd), SvCUR(tmpcmd),
+ FALSE, O_RDONLY, 0, Nullfp);
fp = IoIFP(io);
#endif /* !VMS */
LEAVE;
}
else if (type == OP_GLOB)
SP--;
+ else if (ckWARN(WARN_IO) /* stdout/stderr or other write fh */
+ && (IoTYPE(io) == '>' || fp == PerlIO_stdout()
+ || fp == PerlIO_stderr()))
+ {
+ SV* sv = sv_newmortal();
+ gv_efullname3(sv, PL_last_in_gv, Nullch);
+ Perl_warner(aTHX_ WARN_IO, "Filehandle %s opened only for output",
+ SvPV_nolen(sv));
+ }
}
if (!fp) {
- if (dowarn && !(IoFLAGS(io) & IOf_START))
- warn("Read on closed filehandle <%s>", GvENAME(last_in_gv));
- if (GIMME == G_SCALAR) {
+ if (ckWARN2(WARN_GLOB,WARN_CLOSED) && io && !(IoFLAGS(io) & IOf_START)) {
+ if (type == OP_GLOB)
+ Perl_warner(aTHX_ WARN_GLOB,
+ "glob failed (can't start child: %s)",
+ Strerror(errno));
+ else
+ report_closed_fh(PL_last_in_gv, io, "readline", "filehandle");
+ }
+ if (gimme == G_SCALAR) {
(void)SvOK_off(TARG);
PUSHTARG;
}
RETURN;
}
- if (GIMME == G_ARRAY) {
- sv = sv_2mortal(NEWSV(57, 80));
- offset = 0;
- }
- else {
+ have_fp:
+ if (gimme == G_SCALAR) {
sv = TARG;
+ if (SvROK(sv))
+ sv_unref(sv);
(void)SvUPGRADE(sv, SVt_PV);
tmplen = SvLEN(sv); /* remember if already alloced */
if (!tmplen)
else
offset = 0;
}
+ else {
+ sv = sv_2mortal(NEWSV(57, 80));
+ offset = 0;
+ }
+
+/* delay EOF state for a snarfed empty file */
+#define SNARF_EOF(gimme,rs,io,sv) \
+ (gimme != G_SCALAR || SvCUR(sv) \
+ || !RsSNARF(rs) || (IoFLAGS(io) & IOf_NOLINE) \
+ || ((IoFLAGS(io) |= IOf_NOLINE), FALSE))
+
for (;;) {
- if (!sv_gets(sv, fp, offset)) {
- clearerr(fp);
+ if (!sv_gets(sv, fp, offset)
+ && (type == OP_GLOB || SNARF_EOF(gimme, PL_rs, io, sv)))
+ {
+ PerlIO_clearerr(fp);
if (IoFLAGS(io) & IOf_ARGV) {
- fp = nextargv(last_in_gv);
+ fp = nextargv(PL_last_in_gv);
if (fp)
continue;
- (void)do_close(last_in_gv, FALSE);
- IoFLAGS(io) |= IOf_START;
+ (void)do_close(PL_last_in_gv, FALSE);
}
else if (type == OP_GLOB) {
- (void)do_close(last_in_gv, FALSE);
+ if (!do_close(PL_last_in_gv, FALSE) && ckWARN(WARN_GLOB)) {
+ Perl_warner(aTHX_ WARN_GLOB,
+ "glob failed (child exited with status %d%s)",
+ (int)(STATUS_CURRENT >> 8),
+ (STATUS_CURRENT & 0x80) ? ", core dumped" : "");
+ }
}
- if (GIMME == G_SCALAR) {
+ if (gimme == G_SCALAR) {
(void)SvOK_off(TARG);
PUSHTARG;
}
RETURN;
}
+ /* This should not be marked tainted if the fp is marked clean */
+ if (!(IoFLAGS(io) & IOf_UNTAINT)) {
+ TAINT;
+ SvTAINTED_on(sv);
+ }
IoLINES(io)++;
+ SvSETMAGIC(sv);
XPUSHs(sv);
- if (tainting) {
- tainted = TRUE;
- SvTAINT(sv); /* Anything from the outside world...*/
- }
if (type == OP_GLOB) {
char *tmps;
- if (SvCUR(sv) > 0)
- SvCUR(sv)--;
- if (*SvEND(sv) == rschar)
- *SvEND(sv) = '\0';
- else
- SvCUR(sv)++;
+ if (SvCUR(sv) > 0 && SvCUR(PL_rs) > 0) {
+ tmps = SvEND(sv) - 1;
+ if (*tmps == *SvPVX(PL_rs)) {
+ *tmps = '\0';
+ SvCUR(sv)--;
+ }
+ }
for (tmps = SvPVX(sv); *tmps; tmps++)
if (!isALPHA(*tmps) && !isDIGIT(*tmps) &&
strchr("$&*(){}[]'\";\\|?<>~`", *tmps))
break;
- if (*tmps && Stat(SvPVX(sv), &statbuf) < 0) {
+ if (*tmps && PerlLIO_lstat(SvPVX(sv), &PL_statbuf) < 0) {
(void)POPs; /* Unmatched wildcard? Chuck it... */
continue;
}
}
- if (GIMME == G_ARRAY) {
+ if (gimme == G_ARRAY) {
if (SvLEN(sv) - SvCUR(sv) > 20) {
SvLEN_set(sv, SvCUR(sv)+1);
Renew(SvPVX(sv), SvLEN(sv), char);
sv = sv_2mortal(NEWSV(58, 80));
continue;
}
- else if (!tmplen && SvLEN(sv) - SvCUR(sv) > 80) {
+ else if (gimme == G_SCALAR && !tmplen && SvLEN(sv) - SvCUR(sv) > 80) {
/* try to reclaim a bit of scalar space (only on 1st alloc) */
if (SvCUR(sv) < 60)
SvLEN_set(sv, 80);
PP(pp_enter)
{
- dSP;
- register CONTEXT *cx;
- I32 gimme;
-
- /*
- * We don't just use the GIMME macro here because it assumes there's
- * already a context, which ain't necessarily so at initial startup.
- */
+ djSP;
+ register PERL_CONTEXT *cx;
+ I32 gimme = OP_GIMME(PL_op, -1);
- if (op->op_flags & OPf_KNOW)
- gimme = op->op_flags & OPf_LIST;
- else if (cxstack_ix >= 0)
- gimme = cxstack[cxstack_ix].blk_gimme;
- else
- gimme = G_SCALAR;
+ if (gimme == -1) {
+ if (cxstack_ix >= 0)
+ gimme = cxstack[cxstack_ix].blk_gimme;
+ else
+ gimme = G_SCALAR;
+ }
ENTER;
SAVETMPS;
- PUSHBLOCK(cx, CXt_BLOCK, sp);
+ PUSHBLOCK(cx, CXt_BLOCK, SP);
RETURN;
}
PP(pp_helem)
{
- dSP;
- SV** svp;
+ djSP;
+ HE* he;
+ SV **svp;
SV *keysv = POPs;
- STRLEN keylen;
- char *key = SvPV(keysv, keylen);
HV *hv = (HV*)POPs;
- I32 lval = op->op_flags & OPf_MOD;
+ U32 lval = PL_op->op_flags & OPf_MOD;
+ U32 defer = PL_op->op_private & OPpLVAL_DEFER;
+ SV *sv;
- if (SvTYPE(hv) != SVt_PVHV)
+ if (SvTYPE(hv) == SVt_PVHV) {
+ he = hv_fetch_ent(hv, keysv, lval && !defer, 0);
+ svp = he ? &HeVAL(he) : 0;
+ }
+ else if (SvTYPE(hv) == SVt_PVAV) {
+ if (PL_op->op_private & OPpLVAL_INTRO)
+ DIE(aTHX_ "Can't localize pseudo-hash element");
+ svp = avhv_fetch_ent((AV*)hv, keysv, lval && !defer, 0);
+ }
+ else {
RETPUSHUNDEF;
- svp = hv_fetch(hv, key, keylen, lval);
+ }
if (lval) {
- if (!svp || *svp == &sv_undef)
- DIE(no_helem, key);
- if (op->op_private & OPpLVAL_INTRO)
- save_svref(svp);
- else if (op->op_private & (OPpDEREF_HV|OPpDEREF_AV)) {
- SV* sv = *svp;
- if (SvGMAGICAL(sv))
- mg_get(sv);
- if (!SvOK(sv)) {
- (void)SvUPGRADE(sv, SVt_RV);
- SvRV(sv) = (op->op_private & OPpDEREF_HV ?
- (SV*)newHV() : (SV*)newAV());
- SvROK_on(sv);
- SvSETMAGIC(sv);
+ if (!svp || *svp == &PL_sv_undef) {
+ SV* lv;
+ SV* key2;
+ if (!defer) {
+ STRLEN n_a;
+ DIE(aTHX_ PL_no_helem, SvPV(keysv, n_a));
}
+ lv = sv_newmortal();
+ sv_upgrade(lv, SVt_PVLV);
+ LvTYPE(lv) = 'y';
+ sv_magic(lv, key2 = newSVsv(keysv), 'y', Nullch, 0);
+ SvREFCNT_dec(key2); /* sv_magic() increments refcount */
+ LvTARG(lv) = SvREFCNT_inc(hv);
+ LvTARGLEN(lv) = 1;
+ PUSHs(lv);
+ RETURN;
}
- }
- PUSHs(svp ? *svp : &sv_undef);
+ if (PL_op->op_private & OPpLVAL_INTRO) {
+ if (HvNAME(hv) && isGV(*svp))
+ save_gp((GV*)*svp, !(PL_op->op_flags & OPf_SPECIAL));
+ else
+ save_helem(hv, keysv, svp);
+ }
+ else if (PL_op->op_private & OPpDEREF)
+ vivify_ref(*svp, PL_op->op_private & OPpDEREF);
+ }
+ sv = (svp ? *svp : &PL_sv_undef);
+ /* This makes C<local $tied{foo} = $tied{foo}> possible.
+ * Pushing the magical RHS on to the stack is useless, since
+ * that magic is soon destined to be misled by the local(),
+ * and thus the later pp_sassign() will fail to mg_get() the
+ * old value. This should also cure problems with delayed
+ * mg_get()s. GSAR 98-07-03 */
+ if (!lval && SvGMAGICAL(sv))
+ sv = sv_mortalcopy(sv);
+ PUSHs(sv);
RETURN;
}
PP(pp_leave)
{
- dSP;
- register CONTEXT *cx;
+ djSP;
+ register PERL_CONTEXT *cx;
register SV **mark;
SV **newsp;
PMOP *newpm;
I32 gimme;
- if (op->op_flags & OPf_SPECIAL) {
+ if (PL_op->op_flags & OPf_SPECIAL) {
cx = &cxstack[cxstack_ix];
- cx->blk_oldpm = curpm; /* fake block should preserve $1 et al */
+ cx->blk_oldpm = PL_curpm; /* fake block should preserve $1 et al */
}
POPBLOCK(cx,newpm);
- if (op->op_flags & OPf_KNOW)
- gimme = op->op_flags & OPf_LIST;
- else if (cxstack_ix >= 0)
- gimme = cxstack[cxstack_ix].blk_gimme;
- else
- gimme = G_SCALAR;
+ gimme = OP_GIMME(PL_op, -1);
+ if (gimme == -1) {
+ if (cxstack_ix >= 0)
+ gimme = cxstack[cxstack_ix].blk_gimme;
+ else
+ gimme = G_SCALAR;
+ }
- if (gimme == G_SCALAR) {
- if (op->op_private & OPpLEAVE_VOID)
- SP = newsp;
+ TAINT_NOT;
+ if (gimme == G_VOID)
+ SP = newsp;
+ else if (gimme == G_SCALAR) {
+ MARK = newsp + 1;
+ if (MARK <= SP)
+ if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP))
+ *MARK = TOPs;
+ else
+ *MARK = sv_mortalcopy(TOPs);
else {
- MARK = newsp + 1;
- if (MARK <= SP)
- if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP))
- *MARK = TOPs;
- else
- *MARK = sv_mortalcopy(TOPs);
- else {
- MEXTEND(mark,0);
- *MARK = &sv_undef;
- }
- SP = MARK;
+ MEXTEND(mark,0);
+ *MARK = &PL_sv_undef;
}
+ SP = MARK;
}
- else {
- for (mark = newsp + 1; mark <= SP; mark++)
- if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP)))
+ else if (gimme == G_ARRAY) {
+ /* in case LEAVE wipes old return values */
+ for (mark = newsp + 1; mark <= SP; mark++) {
+ if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) {
*mark = sv_mortalcopy(*mark);
- /* in case LEAVE wipes old return values */
+ TAINT_NOT; /* Each item is independent */
+ }
+ }
}
- curpm = newpm; /* Don't pop $1 et al till now */
+ PL_curpm = newpm; /* Don't pop $1 et al till now */
LEAVE;
PP(pp_iter)
{
- dSP;
- register CONTEXT *cx;
- SV *sv;
+ djSP;
+ register PERL_CONTEXT *cx;
+ SV* sv;
+ AV* av;
+ SV **itersvp;
- EXTEND(sp, 1);
+ EXTEND(SP, 1);
cx = &cxstack[cxstack_ix];
- if (cx->cx_type != CXt_LOOP)
- DIE("panic: pp_iter");
+ if (CxTYPE(cx) != CXt_LOOP)
+ DIE(aTHX_ "panic: pp_iter");
+
+ itersvp = CxITERVAR(cx);
+ av = cx->blk_loop.iterary;
+ if (SvTYPE(av) != SVt_PVAV) {
+ /* iterate ($min .. $max) */
+ if (cx->blk_loop.iterlval) {
+ /* string increment */
+ register SV* cur = cx->blk_loop.iterlval;
+ STRLEN maxlen;
+ char *max = SvPV((SV*)av, maxlen);
+ if (!SvNIOK(cur) && SvCUR(cur) <= maxlen) {
+#ifndef USE_THREADS /* don't risk potential race */
+ if (SvREFCNT(*itersvp) == 1 && !SvMAGICAL(*itersvp)) {
+ /* safe to reuse old SV */
+ sv_setsv(*itersvp, cur);
+ }
+ else
+#endif
+ {
+ /* we need a fresh SV every time so that loop body sees a
+ * completely new SV for closures/references to work as
+ * they used to */
+ SvREFCNT_dec(*itersvp);
+ *itersvp = newSVsv(cur);
+ }
+ if (strEQ(SvPVX(cur), max))
+ sv_setiv(cur, 0); /* terminate next time */
+ else
+ sv_inc(cur);
+ RETPUSHYES;
+ }
+ RETPUSHNO;
+ }
+ /* integer increment */
+ if (cx->blk_loop.iterix > cx->blk_loop.itermax)
+ RETPUSHNO;
+
+#ifndef USE_THREADS /* don't risk potential race */
+ if (SvREFCNT(*itersvp) == 1 && !SvMAGICAL(*itersvp)) {
+ /* safe to reuse old SV */
+ sv_setiv(*itersvp, cx->blk_loop.iterix++);
+ }
+ else
+#endif
+ {
+ /* we need a fresh SV every time so that loop body sees a
+ * completely new SV for closures/references to work as they
+ * used to */
+ SvREFCNT_dec(*itersvp);
+ *itersvp = newSViv(cx->blk_loop.iterix++);
+ }
+ RETPUSHYES;
+ }
- if (cx->blk_loop.iterix >= cx->blk_oldsp)
+ /* iterate array */
+ if (cx->blk_loop.iterix >= (av == PL_curstack ? cx->blk_oldsp : AvFILL(av)))
RETPUSHNO;
- if (sv = AvARRAY(cx->blk_loop.iterary)[++cx->blk_loop.iterix]) {
+ SvREFCNT_dec(*itersvp);
+
+ if ((sv = SvMAGICAL(av)
+ ? *av_fetch(av, ++cx->blk_loop.iterix, FALSE)
+ : AvARRAY(av)[++cx->blk_loop.iterix]))
SvTEMP_off(sv);
- *cx->blk_loop.itervar = sv;
- }
else
- *cx->blk_loop.itervar = &sv_undef;
+ sv = &PL_sv_undef;
+ if (av != PL_curstack && SvIMMORTAL(sv)) {
+ SV *lv = cx->blk_loop.iterlval;
+ if (lv && SvREFCNT(lv) > 1) {
+ SvREFCNT_dec(lv);
+ lv = Nullsv;
+ }
+ if (lv)
+ SvREFCNT_dec(LvTARG(lv));
+ else {
+ lv = cx->blk_loop.iterlval = NEWSV(26, 0);
+ sv_upgrade(lv, SVt_PVLV);
+ LvTYPE(lv) = 'y';
+ sv_magic(lv, Nullsv, 'y', Nullch, 0);
+ }
+ LvTARG(lv) = SvREFCNT_inc(av);
+ LvTARGOFF(lv) = cx->blk_loop.iterix;
+ LvTARGLEN(lv) = (STRLEN)UV_MAX;
+ sv = (SV*)lv;
+ }
+ *itersvp = SvREFCNT_inc(sv);
RETPUSHYES;
}
PP(pp_subst)
{
- dSP; dTARG;
+ djSP; dTARG;
register PMOP *pm = cPMOP;
PMOP *rpm = pm;
register SV *dstr;
I32 maxiters;
register I32 i;
bool once;
+ bool rxtainted;
char *orig;
- I32 safebase;
+ I32 r_flags;
register REGEXP *rx = pm->op_pmregexp;
STRLEN len;
int force_on_match = 0;
+ I32 oldsave = PL_savestack_ix;
- if (pm->op_pmflags & PMf_CONST) /* known replacement string? */
- dstr = POPs;
- if (op->op_flags & OPf_STACKED)
+ /* known replacement string? */
+ dstr = (pm->op_pmflags & PMf_CONST) ? POPs : Nullsv;
+ if (PL_op->op_flags & OPf_STACKED)
TARG = POPs;
else {
- TARG = GvSV(defgv);
+ TARG = DEFSV;
EXTEND(SP,1);
- }
+ }
+ if (SvREADONLY(TARG)
+ || (SvTYPE(TARG) > SVt_PVLV
+ && !(SvTYPE(TARG) == SVt_PVGV && SvFAKE(TARG))))
+ DIE(aTHX_ PL_no_modify);
+ PUTBACK;
+
s = SvPV(TARG, len);
- if (!SvPOKp(TARG) || SvREADONLY(TARG))
+ if (!SvPOKp(TARG) || SvTYPE(TARG) == SVt_PVGV)
force_on_match = 1;
+ rxtainted = ((pm->op_pmdynflags & PMdf_TAINTED) ||
+ (PL_tainted && (pm->op_pmflags & PMf_RETAINT)));
+ if (PL_tainted)
+ rxtainted |= 2;
+ TAINT_NOT;
force_it:
if (!pm || !s)
- DIE("panic: do_subst");
+ DIE(aTHX_ "panic: do_subst");
strend = s + len;
- maxiters = (strend - s) + 10;
+ maxiters = 2*(strend - s) + 10; /* We can match twice at each
+ position, once with zero-length,
+ second time with non-zero. */
- if (!rx->prelen && curpm) {
- pm = curpm;
+ if (!rx->prelen && PL_curpm) {
+ pm = PL_curpm;
rx = pm->op_pmregexp;
}
- safebase = ((!rx || !rx->nparens) && !sawampersand);
+ r_flags = (rx->nparens || SvTEMP(TARG) || PL_sawampersand)
+ ? REXEC_COPY_STR : 0;
+ if (SvSCREAM(TARG))
+ r_flags |= REXEC_SCREAM;
if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) {
- SAVEINT(multiline);
- multiline = pm->op_pmflags & PMf_MULTILINE;
+ SAVEINT(PL_multiline);
+ PL_multiline = pm->op_pmflags & PMf_MULTILINE;
}
orig = m = s;
- if (pm->op_pmshort) {
- if (pm->op_pmflags & PMf_SCANFIRST) {
- if (SvSCREAM(TARG)) {
- if (screamfirst[BmRARE(pm->op_pmshort)] < 0)
- goto nope;
- else if (!(s = screaminstr(TARG, pm->op_pmshort)))
- goto nope;
- }
- else if (!(s = fbm_instr((unsigned char*)s, (unsigned char*)strend,
- pm->op_pmshort)))
- goto nope;
- if (s && rx->regback >= 0) {
- ++BmUSEFUL(pm->op_pmshort);
- s -= rx->regback;
- if (s < m)
- s = m;
- }
- else
- s = m;
- }
- else if (!multiline) {
- if (*SvPVX(pm->op_pmshort) != *s ||
- bcmp(SvPVX(pm->op_pmshort), s, pm->op_pmslen) ) {
- if (pm->op_pmflags & PMf_FOLD) {
- if (ibcmp((U8*)SvPVX(pm->op_pmshort), (U8*)s, pm->op_pmslen) )
- goto nope;
- }
- else
- goto nope;
- }
- }
- if (!rx->naughty && --BmUSEFUL(pm->op_pmshort) < 0) {
- SvREFCNT_dec(pm->op_pmshort);
- pm->op_pmshort = Nullsv; /* opt is being useless */
- }
+ if (rx->reganch & RE_USE_INTUIT) {
+ s = CALLREG_INTUIT_START(aTHX_ rx, TARG, s, strend, r_flags, NULL);
+
+ if (!s)
+ goto nope;
+ /* How to do it in subst? */
+/* if ( (rx->reganch & ROPT_CHECK_ALL)
+ && !PL_sawampersand
+ && ((rx->reganch & ROPT_NOSCAN)
+ || !((rx->reganch & RE_INTUIT_TAIL)
+ && (r_flags & REXEC_SCREAM))))
+ goto yup;
+*/
}
+
+ /* only replace once? */
once = !(rpm->op_pmflags & PMf_GLOBAL);
- if (rpm->op_pmflags & PMf_CONST) { /* known replacement string? */
- c = SvPV(dstr, clen);
- if (clen <= rx->minlen) {
- /* can do inplace substitution */
- if (regexec(rx, s, strend, orig, 0,
- SvSCREAM(TARG) ? TARG : Nullsv, safebase)) {
- if (force_on_match) {
- force_on_match = 0;
- s = SvPV_force(TARG, len);
- goto force_it;
+
+ /* known replacement string? */
+ c = dstr ? SvPV(dstr, clen) : Nullch;
+
+ /* can do inplace substitution? */
+ if (c && clen <= rx->minlen && (once || !(r_flags & REXEC_COPY_STR))
+ && !(rx->reganch & ROPT_LOOKBEHIND_SEEN)) {
+ if (!CALLREGEXEC(aTHX_ rx, s, strend, orig, 0, TARG, NULL,
+ r_flags | REXEC_CHECKED))
+ {
+ SPAGAIN;
+ PUSHs(&PL_sv_no);
+ LEAVE_SCOPE(oldsave);
+ RETURN;
+ }
+ if (force_on_match) {
+ force_on_match = 0;
+ s = SvPV_force(TARG, len);
+ goto force_it;
+ }
+ d = s;
+ PL_curpm = pm;
+ SvSCREAM_off(TARG); /* disable possible screamer */
+ if (once) {
+ rxtainted |= RX_MATCH_TAINTED(rx);
+ m = orig + rx->startp[0];
+ d = orig + rx->endp[0];
+ s = orig;
+ if (m - s > strend - d) { /* faster to shorten from end */
+ if (clen) {
+ Copy(c, m, clen, char);
+ m += clen;
}
- if (rx->subbase) /* oops, no we can't */
- goto long_way;
- d = s;
- curpm = pm;
- SvSCREAM_off(TARG); /* disable possible screamer */
- if (once) {
- m = rx->startp[0];
- d = rx->endp[0];
- s = orig;
- if (m - s > strend - d) { /* faster to shorten from end */
- if (clen) {
- Copy(c, m, clen, char);
- m += clen;
- }
- i = strend - d;
- if (i > 0) {
- Move(d, m, i, char);
- m += i;
- }
- *m = '\0';
- SvCUR_set(TARG, m - s);
- (void)SvPOK_only(TARG);
- SvSETMAGIC(TARG);
- PUSHs(&sv_yes);
- RETURN;
- }
- /*SUPPRESS 560*/
- else if (i = m - s) { /* faster from front */
- d -= clen;
- m = d;
- sv_chop(TARG, d-i);
- s += i;
- while (i--)
- *--d = *--s;
- if (clen)
- Copy(c, m, clen, char);
- (void)SvPOK_only(TARG);
- SvSETMAGIC(TARG);
- PUSHs(&sv_yes);
- RETURN;
- }
- else if (clen) {
- d -= clen;
- sv_chop(TARG, d);
- Copy(c, d, clen, char);
- (void)SvPOK_only(TARG);
- SvSETMAGIC(TARG);
- PUSHs(&sv_yes);
- RETURN;
- }
- else {
- sv_chop(TARG, d);
- (void)SvPOK_only(TARG);
- SvSETMAGIC(TARG);
- PUSHs(&sv_yes);
- RETURN;
- }
- /* NOTREACHED */
+ i = strend - d;
+ if (i > 0) {
+ Move(d, m, i, char);
+ m += i;
}
- do {
- if (iters++ > maxiters)
- DIE("Substitution loop");
- m = rx->startp[0];
- /*SUPPRESS 560*/
- if (i = m - s) {
- if (s != d)
- Move(s, d, i, char);
- d += i;
- }
- if (clen) {
- Copy(c, d, clen, char);
- d += clen;
- }
- s = rx->endp[0];
- } while (regexec(rx, s, strend, orig, s == m,
- Nullsv, TRUE)); /* (don't match same null twice) */
- if (s != d) {
- i = strend - s;
- SvCUR_set(TARG, d - SvPVX(TARG) + i);
- Move(s, d, i+1, char); /* include the Null */
+ *m = '\0';
+ SvCUR_set(TARG, m - s);
+ }
+ /*SUPPRESS 560*/
+ else if ((i = m - s)) { /* faster from front */
+ d -= clen;
+ m = d;
+ sv_chop(TARG, d-i);
+ s += i;
+ while (i--)
+ *--d = *--s;
+ if (clen)
+ Copy(c, m, clen, char);
+ }
+ else if (clen) {
+ d -= clen;
+ sv_chop(TARG, d);
+ Copy(c, d, clen, char);
+ }
+ else {
+ sv_chop(TARG, d);
+ }
+ TAINT_IF(rxtainted & 1);
+ SPAGAIN;
+ PUSHs(&PL_sv_yes);
+ }
+ else {
+ do {
+ if (iters++ > maxiters)
+ DIE(aTHX_ "Substitution loop");
+ rxtainted |= RX_MATCH_TAINTED(rx);
+ m = rx->startp[0] + orig;
+ /*SUPPRESS 560*/
+ if ((i = m - s)) {
+ if (s != d)
+ Move(s, d, i, char);
+ d += i;
}
- (void)SvPOK_only(TARG);
- SvSETMAGIC(TARG);
- PUSHs(sv_2mortal(newSViv((I32)iters)));
- RETURN;
+ if (clen) {
+ Copy(c, d, clen, char);
+ d += clen;
+ }
+ s = rx->endp[0] + orig;
+ } while (CALLREGEXEC(aTHX_ rx, s, strend, orig, s == m,
+ TARG, NULL,
+ /* don't match same null twice */
+ REXEC_NOT_FIRST|REXEC_IGNOREPOS));
+ if (s != d) {
+ i = strend - s;
+ SvCUR_set(TARG, d - SvPVX(TARG) + i);
+ Move(s, d, i+1, char); /* include the NUL */
}
- PUSHs(&sv_no);
- RETURN;
+ TAINT_IF(rxtainted & 1);
+ SPAGAIN;
+ PUSHs(sv_2mortal(newSViv((I32)iters)));
}
+ (void)SvPOK_only_UTF8(TARG);
+ TAINT_IF(rxtainted);
+ if (SvSMAGICAL(TARG)) {
+ PUTBACK;
+ mg_set(TARG);
+ SPAGAIN;
+ }
+ SvTAINT(TARG);
+ LEAVE_SCOPE(oldsave);
+ RETURN;
}
- else
- c = Nullch;
- if (regexec(rx, s, strend, orig, 0,
- SvSCREAM(TARG) ? TARG : Nullsv, safebase)) {
- long_way:
+
+ if (CALLREGEXEC(aTHX_ rx, s, strend, orig, 0, TARG, NULL,
+ r_flags | REXEC_CHECKED))
+ {
if (force_on_match) {
force_on_match = 0;
s = SvPV_force(TARG, len);
goto force_it;
}
- dstr = NEWSV(25, sv_len(TARG));
+ rxtainted |= RX_MATCH_TAINTED(rx);
+ dstr = NEWSV(25, len);
sv_setpvn(dstr, m, s-m);
- curpm = pm;
+ PL_curpm = pm;
if (!c) {
- register CONTEXT *cx;
+ register PERL_CONTEXT *cx;
+ SPAGAIN;
PUSHSUBST(cx);
RETURNOP(cPMOP->op_pmreplroot);
}
+ r_flags |= REXEC_IGNOREPOS | REXEC_NOT_FIRST;
do {
if (iters++ > maxiters)
- DIE("Substitution loop");
- if (rx->subbase && rx->subbase != orig) {
+ DIE(aTHX_ "Substitution loop");
+ rxtainted |= RX_MATCH_TAINTED(rx);
+ if (RX_MATCH_COPIED(rx) && rx->subbeg != orig) {
m = s;
s = orig;
- orig = rx->subbase;
+ orig = rx->subbeg;
s = orig + (m - s);
strend = s + (strend - m);
}
- m = rx->startp[0];
+ m = rx->startp[0] + orig;
sv_catpvn(dstr, s, m-s);
- s = rx->endp[0];
+ s = rx->endp[0] + orig;
if (clen)
sv_catpvn(dstr, c, clen);
if (once)
break;
- } while (regexec(rx, s, strend, orig, s == m, Nullsv,
- safebase));
+ } while (CALLREGEXEC(aTHX_ rx, s, strend, orig, s == m, TARG, NULL, r_flags));
sv_catpvn(dstr, s, strend - s);
+ (void)SvOOK_off(TARG);
Safefree(SvPVX(TARG));
SvPVX(TARG) = SvPVX(dstr);
SvCUR_set(TARG, SvCUR(dstr));
SvPVX(dstr) = 0;
sv_free(dstr);
+ TAINT_IF(rxtainted & 1);
+ SPAGAIN;
+ PUSHs(sv_2mortal(newSViv((I32)iters)));
+
(void)SvPOK_only(TARG);
+ TAINT_IF(rxtainted);
SvSETMAGIC(TARG);
- PUSHs(sv_2mortal(newSViv((I32)iters)));
+ SvTAINT(TARG);
+ LEAVE_SCOPE(oldsave);
RETURN;
}
- PUSHs(&sv_no);
- RETURN;
+ goto ret_no;
nope:
- ++BmUSEFUL(pm->op_pmshort);
- PUSHs(&sv_no);
+ret_no:
+ SPAGAIN;
+ PUSHs(&PL_sv_no);
+ LEAVE_SCOPE(oldsave);
RETURN;
}
PP(pp_grepwhile)
{
- dSP;
+ djSP;
if (SvTRUEx(POPs))
- stack_base[markstack_ptr[-1]++] = stack_base[*markstack_ptr];
- ++*markstack_ptr;
+ PL_stack_base[PL_markstack_ptr[-1]++] = PL_stack_base[*PL_markstack_ptr];
+ ++*PL_markstack_ptr;
LEAVE; /* exit inner scope */
/* All done yet? */
- if (stack_base + *markstack_ptr > sp) {
+ if (PL_stack_base + *PL_markstack_ptr > SP) {
I32 items;
+ I32 gimme = GIMME_V;
LEAVE; /* exit outer scope */
(void)POPMARK; /* pop src */
- items = --*markstack_ptr - markstack_ptr[-1];
+ items = --*PL_markstack_ptr - PL_markstack_ptr[-1];
(void)POPMARK; /* pop dst */
- SP = stack_base + POPMARK; /* pop original mark */
- if (GIMME != G_ARRAY) {
+ SP = PL_stack_base + POPMARK; /* pop original mark */
+ if (gimme == G_SCALAR) {
dTARGET;
XPUSHi(items);
- RETURN;
}
- SP += items;
+ else if (gimme == G_ARRAY)
+ SP += items;
RETURN;
}
else {
SV *src;
ENTER; /* enter inner scope */
- SAVESPTR(curpm);
+ SAVEVPTR(PL_curpm);
- src = stack_base[*markstack_ptr];
+ src = PL_stack_base[*PL_markstack_ptr];
SvTEMP_off(src);
- GvSV(defgv) = src;
+ DEFSV = src;
RETURNOP(cLOGOP->op_other);
}
PP(pp_leavesub)
{
- dSP;
+ djSP;
SV **mark;
SV **newsp;
PMOP *newpm;
I32 gimme;
- register CONTEXT *cx;
+ register PERL_CONTEXT *cx;
+ SV *sv;
POPBLOCK(cx,newpm);
- POPSUB(cx);
-
+
+ TAINT_NOT;
if (gimme == G_SCALAR) {
MARK = newsp + 1;
- if (MARK <= SP)
- if (SvFLAGS(TOPs) & SVs_TEMP)
- *MARK = TOPs;
+ if (MARK <= SP) {
+ if (cx->blk_sub.cv && CvDEPTH(cx->blk_sub.cv) > 1) {
+ if (SvTEMP(TOPs)) {
+ *MARK = SvREFCNT_inc(TOPs);
+ FREETMPS;
+ sv_2mortal(*MARK);
+ }
+ else {
+ sv = SvREFCNT_inc(TOPs); /* FREETMPS could clobber it */
+ FREETMPS;
+ *MARK = sv_mortalcopy(sv);
+ SvREFCNT_dec(sv);
+ }
+ }
else
- *MARK = sv_mortalcopy(TOPs);
+ *MARK = SvTEMP(TOPs) ? TOPs : sv_mortalcopy(TOPs);
+ }
else {
- MEXTEND(mark,0);
- *MARK = &sv_undef;
+ MEXTEND(MARK, 0);
+ *MARK = &PL_sv_undef;
}
SP = MARK;
}
- else {
- for (mark = newsp + 1; mark <= SP; mark++)
- if (!(SvFLAGS(*mark) & SVs_TEMP))
- *mark = sv_mortalcopy(*mark);
- /* in case LEAVE wipes old return values */
+ else if (gimme == G_ARRAY) {
+ for (MARK = newsp + 1; MARK <= SP; MARK++) {
+ if (!SvTEMP(*MARK)) {
+ *MARK = sv_mortalcopy(*MARK);
+ TAINT_NOT; /* Each item is independent */
+ }
+ }
}
+ PUTBACK;
+
+ POPSUB(cx,sv); /* Stack values are safe: release CV and @_ ... */
+ PL_curpm = newpm; /* ... and pop $1 et al */
- if (cx->blk_sub.hasargs) { /* You don't exist; go away. */
- AV* av = cx->blk_sub.argarray;
+ LEAVE;
+ LEAVESUB(sv);
+ return pop_return();
+}
- av_clear(av);
- AvREAL_off(av);
+/* This duplicates the above code because the above code must not
+ * get any slower by more conditions */
+PP(pp_leavesublv)
+{
+ djSP;
+ SV **mark;
+ SV **newsp;
+ PMOP *newpm;
+ I32 gimme;
+ register PERL_CONTEXT *cx;
+ SV *sv;
+
+ POPBLOCK(cx,newpm);
+
+ TAINT_NOT;
+
+ if (cx->blk_sub.lval & OPpENTERSUB_INARGS) {
+ /* We are an argument to a function or grep().
+ * This kind of lvalueness was legal before lvalue
+ * subroutines too, so be backward compatible:
+ * cannot report errors. */
+
+ /* Scalar context *is* possible, on the LHS of -> only,
+ * as in f()->meth(). But this is not an lvalue. */
+ if (gimme == G_SCALAR)
+ goto temporise;
+ if (gimme == G_ARRAY) {
+ if (!CvLVALUE(cx->blk_sub.cv))
+ goto temporise_array;
+ EXTEND_MORTAL(SP - newsp);
+ for (mark = newsp + 1; mark <= SP; mark++) {
+ if (SvTEMP(*mark))
+ /* empty */ ;
+ else if (SvFLAGS(*mark) & (SVs_PADTMP | SVf_READONLY))
+ *mark = sv_mortalcopy(*mark);
+ else {
+ /* Can be a localized value subject to deletion. */
+ PL_tmps_stack[++PL_tmps_ix] = *mark;
+ (void)SvREFCNT_inc(*mark);
+ }
+ }
+ }
}
- curpm = newpm; /* Don't pop $1 et al till now */
+ else if (cx->blk_sub.lval) { /* Leave it as it is if we can. */
+ /* Here we go for robustness, not for speed, so we change all
+ * the refcounts so the caller gets a live guy. Cannot set
+ * TEMP, so sv_2mortal is out of question. */
+ if (!CvLVALUE(cx->blk_sub.cv)) {
+ POPSUB(cx,sv);
+ PL_curpm = newpm;
+ LEAVE;
+ LEAVESUB(sv);
+ DIE(aTHX_ "Can't modify non-lvalue subroutine call");
+ }
+ if (gimme == G_SCALAR) {
+ MARK = newsp + 1;
+ EXTEND_MORTAL(1);
+ if (MARK == SP) {
+ if (SvFLAGS(TOPs) & (SVs_TEMP | SVs_PADTMP | SVf_READONLY)) {
+ POPSUB(cx,sv);
+ PL_curpm = newpm;
+ LEAVE;
+ LEAVESUB(sv);
+ DIE(aTHX_ "Can't return a %s from lvalue subroutine",
+ SvREADONLY(TOPs) ? "readonly value" : "temporary");
+ }
+ else { /* Can be a localized value
+ * subject to deletion. */
+ PL_tmps_stack[++PL_tmps_ix] = *mark;
+ (void)SvREFCNT_inc(*mark);
+ }
+ }
+ else { /* Should not happen? */
+ POPSUB(cx,sv);
+ PL_curpm = newpm;
+ LEAVE;
+ LEAVESUB(sv);
+ DIE(aTHX_ "%s returned from lvalue subroutine in scalar context",
+ (MARK > SP ? "Empty array" : "Array"));
+ }
+ SP = MARK;
+ }
+ else if (gimme == G_ARRAY) {
+ EXTEND_MORTAL(SP - newsp);
+ for (mark = newsp + 1; mark <= SP; mark++) {
+ if (SvFLAGS(*mark) & (SVs_TEMP | SVs_PADTMP | SVf_READONLY)) {
+ /* Might be flattened array after $#array = */
+ PUTBACK;
+ POPSUB(cx,sv);
+ PL_curpm = newpm;
+ LEAVE;
+ LEAVESUB(sv);
+ DIE(aTHX_ "Can't return %s from lvalue subroutine",
+ (*mark != &PL_sv_undef)
+ ? (SvREADONLY(TOPs)
+ ? "a readonly value" : "a temporary")
+ : "an uninitialized value");
+ }
+ else {
+ /* Can be a localized value subject to deletion. */
+ PL_tmps_stack[++PL_tmps_ix] = *mark;
+ (void)SvREFCNT_inc(*mark);
+ }
+ }
+ }
+ }
+ else {
+ if (gimme == G_SCALAR) {
+ temporise:
+ MARK = newsp + 1;
+ if (MARK <= SP) {
+ if (cx->blk_sub.cv && CvDEPTH(cx->blk_sub.cv) > 1) {
+ if (SvTEMP(TOPs)) {
+ *MARK = SvREFCNT_inc(TOPs);
+ FREETMPS;
+ sv_2mortal(*MARK);
+ }
+ else {
+ sv = SvREFCNT_inc(TOPs); /* FREETMPS could clobber it */
+ FREETMPS;
+ *MARK = sv_mortalcopy(sv);
+ SvREFCNT_dec(sv);
+ }
+ }
+ else
+ *MARK = SvTEMP(TOPs) ? TOPs : sv_mortalcopy(TOPs);
+ }
+ else {
+ MEXTEND(MARK, 0);
+ *MARK = &PL_sv_undef;
+ }
+ SP = MARK;
+ }
+ else if (gimme == G_ARRAY) {
+ temporise_array:
+ for (MARK = newsp + 1; MARK <= SP; MARK++) {
+ if (!SvTEMP(*MARK)) {
+ *MARK = sv_mortalcopy(*MARK);
+ TAINT_NOT; /* Each item is independent */
+ }
+ }
+ }
+ }
+ PUTBACK;
+
+ POPSUB(cx,sv); /* Stack values are safe: release CV and @_ ... */
+ PL_curpm = newpm; /* ... and pop $1 et al */
LEAVE;
- PUTBACK;
+ LEAVESUB(sv);
return pop_return();
}
+
+STATIC CV *
+S_get_db_sub(pTHX_ SV **svp, CV *cv)
+{
+ dTHR;
+ SV *dbsv = GvSV(PL_DBsub);
+
+ if (!PERLDB_SUB_NN) {
+ GV *gv = CvGV(cv);
+
+ save_item(dbsv);
+ if ( (CvFLAGS(cv) & (CVf_ANON | CVf_CLONED))
+ || strEQ(GvNAME(gv), "END")
+ || ((GvCV(gv) != cv) && /* Could be imported, and old sub redefined. */
+ !( (SvTYPE(*svp) == SVt_PVGV) && (GvCV((GV*)*svp) == cv)
+ && (gv = (GV*)*svp) ))) {
+ /* Use GV from the stack as a fallback. */
+ /* GV is potentially non-unique, or contain different CV. */
+ sv_setsv(dbsv, newRV((SV*)cv));
+ }
+ else {
+ gv_efullname3(dbsv, gv, Nullch);
+ }
+ }
+ else {
+ (void)SvUPGRADE(dbsv, SVt_PVIV);
+ (void)SvIOK_on(dbsv);
+ SAVEIV(SvIVX(dbsv));
+ SvIVX(dbsv) = PTR2IV(cv); /* Do it the quickest way */
+ }
+
+ if (CvXSUB(cv))
+ PL_curcopdb = PL_curcop;
+ cv = GvCV(PL_DBsub);
+ return cv;
+}
+
PP(pp_entersub)
{
- dSP; dPOPss;
+ djSP; dPOPss;
GV *gv;
HV *stash;
register CV *cv;
- register CONTEXT *cx;
+ register PERL_CONTEXT *cx;
+ I32 gimme;
+ bool hasargs = (PL_op->op_flags & OPf_STACKED) != 0;
if (!sv)
- DIE("Not a CODE reference");
+ DIE(aTHX_ "Not a CODE reference");
switch (SvTYPE(sv)) {
default:
if (!SvROK(sv)) {
char *sym;
+ STRLEN n_a;
- if (sv == &sv_yes) /* unfound import, ignore */
+ if (sv == &PL_sv_yes) { /* unfound import, ignore */
+ if (hasargs)
+ SP = PL_stack_base + POPMARK;
RETURN;
- if (!SvOK(sv))
- DIE(no_usym, "a subroutine");
- sym = SvPV(sv,na);
- if (op->op_private & HINT_STRICT_REFS)
- DIE(no_symref, sym, "a subroutine");
- cv = perl_get_cv(sym, TRUE);
+ }
+ if (SvGMAGICAL(sv)) {
+ mg_get(sv);
+ sym = SvPOKp(sv) ? SvPVX(sv) : Nullch;
+ }
+ else
+ sym = SvPV(sv, n_a);
+ if (!sym)
+ DIE(aTHX_ PL_no_usym, "a subroutine");
+ if (PL_op->op_private & HINT_STRICT_REFS)
+ DIE(aTHX_ PL_no_symref, sym, "a subroutine");
+ cv = get_cv(sym, TRUE);
break;
}
+ {
+ SV **sp = &sv; /* Used in tryAMAGICunDEREF macro. */
+ tryAMAGICunDEREF(to_cv);
+ }
cv = (CV*)SvRV(sv);
if (SvTYPE(cv) == SVt_PVCV)
break;
/* FALL THROUGH */
case SVt_PVHV:
case SVt_PVAV:
- DIE("Not a CODE reference");
+ DIE(aTHX_ "Not a CODE reference");
case SVt_PVCV:
cv = (CV*)sv;
break;
case SVt_PVGV:
- if (!(cv = GvCV((GV*)sv)))
- cv = sv_2cv(sv, &stash, &gv, TRUE);
+ if (!(cv = GvCVu((GV*)sv)))
+ cv = sv_2cv(sv, &stash, &gv, FALSE);
+ if (!cv) {
+ ENTER;
+ SAVETMPS;
+ goto try_autoload;
+ }
break;
}
SAVETMPS;
retry:
- if (!cv)
- DIE("Not a CODE reference");
-
if (!CvROOT(cv) && !CvXSUB(cv)) {
- if (gv = CvGV(cv)) {
- SV *tmpstr = sv_newmortal();
- GV *ngv;
- gv_efullname(tmpstr, gv);
- ngv = gv_fetchmethod(GvESTASH(gv), "AUTOLOAD");
- if (ngv && ngv != gv && (cv = GvCV(ngv))) { /* One more chance... */
- gv = ngv;
- sv_setsv(GvSV(CvGV(cv)), tmpstr); /* Set CV's $AUTOLOAD */
- goto retry;
+ GV* autogv;
+ SV* sub_name;
+
+ /* anonymous or undef'd function leaves us no recourse */
+ if (CvANON(cv) || !(gv = CvGV(cv)))
+ DIE(aTHX_ "Undefined subroutine called");
+
+ /* autoloaded stub? */
+ if (cv != GvCV(gv)) {
+ cv = GvCV(gv);
+ }
+ /* should call AUTOLOAD now? */
+ else {
+try_autoload:
+ if ((autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv),
+ FALSE)))
+ {
+ cv = GvCV(autogv);
+ }
+ /* sorry */
+ else {
+ sub_name = sv_newmortal();
+ gv_efullname3(sub_name, gv, Nullch);
+ DIE(aTHX_ "Undefined subroutine &%s called", SvPVX(sub_name));
}
- else
- DIE("Undefined subroutine &%s called",SvPVX(tmpstr));
}
- DIE("Undefined subroutine called");
+ if (!cv)
+ DIE(aTHX_ "Not a CODE reference");
+ goto retry;
+ }
+
+ gimme = GIMME_V;
+ if ((PL_op->op_private & OPpENTERSUB_DB) && GvCV(PL_DBsub) && !CvNODEBUG(cv)) {
+ cv = get_db_sub(&sv, cv);
+ if (!cv)
+ DIE(aTHX_ "No DBsub routine");
}
- if ((op->op_private & OPpDEREF_DB) && !CvXSUB(cv)) {
- sv = GvSV(DBsub);
- save_item(sv);
- if (SvFLAGS(cv) & SVpcv_ANON) /* Is GV potentially non-unique? */
- sv_setsv(sv, newRV((SV*)cv));
+#ifdef USE_THREADS
+ /*
+ * First we need to check if the sub or method requires locking.
+ * If so, we gain a lock on the CV, the first argument or the
+ * stash (for static methods), as appropriate. This has to be
+ * inline because for FAKE_THREADS, COND_WAIT inlines code to
+ * reschedule by returning a new op.
+ */
+ MUTEX_LOCK(CvMUTEXP(cv));
+ if (CvFLAGS(cv) & CVf_LOCKED) {
+ MAGIC *mg;
+ if (CvFLAGS(cv) & CVf_METHOD) {
+ if (SP > PL_stack_base + TOPMARK)
+ sv = *(PL_stack_base + TOPMARK + 1);
+ else {
+ AV *av = (AV*)PL_curpad[0];
+ if (hasargs || !av || AvFILLp(av) < 0
+ || !(sv = AvARRAY(av)[0]))
+ {
+ MUTEX_UNLOCK(CvMUTEXP(cv));
+ DIE(aTHX_ "no argument for locked method call");
+ }
+ }
+ if (SvROK(sv))
+ sv = SvRV(sv);
+ else {
+ STRLEN len;
+ char *stashname = SvPV(sv, len);
+ sv = (SV*)gv_stashpvn(stashname, len, TRUE);
+ }
+ }
else {
- gv = CvGV(cv);
- gv_efullname(sv,gv);
+ sv = (SV*)cv;
}
- cv = GvCV(DBsub);
- if (!cv)
- DIE("No DBsub routine");
+ MUTEX_UNLOCK(CvMUTEXP(cv));
+ mg = condpair_magic(sv);
+ MUTEX_LOCK(MgMUTEXP(mg));
+ if (MgOWNER(mg) == thr)
+ MUTEX_UNLOCK(MgMUTEXP(mg));
+ else {
+ while (MgOWNER(mg))
+ COND_WAIT(MgOWNERCONDP(mg), MgMUTEXP(mg));
+ MgOWNER(mg) = thr;
+ DEBUG_S(PerlIO_printf(Perl_debug_log, "%p: pp_entersub lock %p\n",
+ thr, sv);)
+ MUTEX_UNLOCK(MgMUTEXP(mg));
+ SAVEDESTRUCTOR_X(Perl_unlock_condpair, sv);
+ }
+ MUTEX_LOCK(CvMUTEXP(cv));
}
+ /*
+ * Now we have permission to enter the sub, we must distinguish
+ * four cases. (0) It's an XSUB (in which case we don't care
+ * about ownership); (1) it's ours already (and we're recursing);
+ * (2) it's free (but we may already be using a cached clone);
+ * (3) another thread owns it. Case (1) is easy: we just use it.
+ * Case (2) means we look for a clone--if we have one, use it
+ * otherwise grab ownership of cv. Case (3) means we look for a
+ * clone (for non-XSUBs) and have to create one if we don't
+ * already have one.
+ * Why look for a clone in case (2) when we could just grab
+ * ownership of cv straight away? Well, we could be recursing,
+ * i.e. we originally tried to enter cv while another thread
+ * owned it (hence we used a clone) but it has been freed up
+ * and we're now recursing into it. It may or may not be "better"
+ * to use the clone but at least CvDEPTH can be trusted.
+ */
+ if (CvOWNER(cv) == thr || CvXSUB(cv))
+ MUTEX_UNLOCK(CvMUTEXP(cv));
+ else {
+ /* Case (2) or (3) */
+ SV **svp;
+
+ /*
+ * XXX Might it be better to release CvMUTEXP(cv) while we
+ * do the hv_fetch? We might find someone has pinched it
+ * when we look again, in which case we would be in case
+ * (3) instead of (2) so we'd have to clone. Would the fact
+ * that we released the mutex more quickly make up for this?
+ */
+ if ((svp = hv_fetch(thr->cvcache, (char *)cv, sizeof(cv), FALSE)))
+ {
+ /* We already have a clone to use */
+ MUTEX_UNLOCK(CvMUTEXP(cv));
+ cv = *(CV**)svp;
+ DEBUG_S(PerlIO_printf(Perl_debug_log,
+ "entersub: %p already has clone %p:%s\n",
+ thr, cv, SvPEEK((SV*)cv)));
+ CvOWNER(cv) = thr;
+ SvREFCNT_inc(cv);
+ if (CvDEPTH(cv) == 0)
+ SAVEDESTRUCTOR_X(unset_cvowner, (void*) cv);
+ }
+ else {
+ /* (2) => grab ownership of cv. (3) => make clone */
+ if (!CvOWNER(cv)) {
+ CvOWNER(cv) = thr;
+ SvREFCNT_inc(cv);
+ MUTEX_UNLOCK(CvMUTEXP(cv));
+ DEBUG_S(PerlIO_printf(Perl_debug_log,
+ "entersub: %p grabbing %p:%s in stash %s\n",
+ thr, cv, SvPEEK((SV*)cv), CvSTASH(cv) ?
+ HvNAME(CvSTASH(cv)) : "(none)"));
+ }
+ else {
+ /* Make a new clone. */
+ CV *clonecv;
+ SvREFCNT_inc(cv); /* don't let it vanish from under us */
+ MUTEX_UNLOCK(CvMUTEXP(cv));
+ DEBUG_S((PerlIO_printf(Perl_debug_log,
+ "entersub: %p cloning %p:%s\n",
+ thr, cv, SvPEEK((SV*)cv))));
+ /*
+ * We're creating a new clone so there's no race
+ * between the original MUTEX_UNLOCK and the
+ * SvREFCNT_inc since no one will be trying to undef
+ * it out from underneath us. At least, I don't think
+ * there's a race...
+ */
+ clonecv = cv_clone(cv);
+ SvREFCNT_dec(cv); /* finished with this */
+ hv_store(thr->cvcache, (char*)cv, sizeof(cv), (SV*)clonecv,0);
+ CvOWNER(clonecv) = thr;
+ cv = clonecv;
+ SvREFCNT_inc(cv);
+ }
+ DEBUG_S(if (CvDEPTH(cv) != 0)
+ PerlIO_printf(Perl_debug_log, "depth %ld != 0\n",
+ CvDEPTH(cv)););
+ SAVEDESTRUCTOR_X(unset_cvowner, (void*) cv);
+ }
+ }
+#endif /* USE_THREADS */
if (CvXSUB(cv)) {
+#ifdef PERL_XSUB_OLDSTYLE
if (CvOLDSTYLE(cv)) {
- I32 (*fp3)_((int,int,int));
+ I32 (*fp3)(int,int,int);
dMARK;
register I32 items = SP - MARK;
- while (sp > mark) {
- sp[1] = sp[0];
- sp--;
+ /* We dont worry to copy from @_. */
+ while (SP > mark) {
+ SP[1] = SP[0];
+ SP--;
}
- stack_sp = mark + 1;
- fp3 = (I32(*)_((int,int,int)))CvXSUB(cv);
+ PL_stack_sp = mark + 1;
+ fp3 = (I32(*)(int,int,int))CvXSUB(cv);
items = (*fp3)(CvXSUBANY(cv).any_i32,
- MARK - stack_base + 1,
+ MARK - PL_stack_base + 1,
items);
- stack_sp = stack_base + items;
+ PL_stack_sp = PL_stack_base + items;
}
- else {
+ else
+#endif /* PERL_XSUB_OLDSTYLE */
+ {
I32 markix = TOPMARK;
PUTBACK;
- (void)(*CvXSUB(cv))(cv);
+
+ if (!hasargs) {
+ /* Need to copy @_ to stack. Alternative may be to
+ * switch stack to @_, and copy return values
+ * back. This would allow popping @_ in XSUB, e.g.. XXXX */
+ AV* av;
+ I32 items;
+#ifdef USE_THREADS
+ av = (AV*)PL_curpad[0];
+#else
+ av = GvAV(PL_defgv);
+#endif /* USE_THREADS */
+ items = AvFILLp(av) + 1; /* @_ is not tieable */
+
+ if (items) {
+ /* Mark is at the end of the stack. */
+ EXTEND(SP, items);
+ Copy(AvARRAY(av), SP + 1, items, SV*);
+ SP += items;
+ PUTBACK ;
+ }
+ }
+ /* We assume first XSUB in &DB::sub is the called one. */
+ if (PL_curcopdb) {
+ SAVEVPTR(PL_curcop);
+ PL_curcop = PL_curcopdb;
+ PL_curcopdb = NULL;
+ }
+ /* Do we need to open block here? XXXX */
+ (void)(*CvXSUB(cv))(aTHXo_ cv);
/* Enforce some sanity in scalar context. */
- if (GIMME == G_SCALAR && ++markix != stack_sp - stack_base ) {
- if (markix > stack_sp - stack_base)
- *(stack_base + markix) = &sv_undef;
+ if (gimme == G_SCALAR && ++markix != PL_stack_sp - PL_stack_base ) {
+ if (markix > PL_stack_sp - PL_stack_base)
+ *(PL_stack_base + markix) = &PL_sv_undef;
else
- *(stack_base + markix) = *stack_sp;
- stack_sp = stack_base + markix;
+ *(PL_stack_base + markix) = *PL_stack_sp;
+ PL_stack_sp = PL_stack_base + markix;
}
}
LEAVE;
else {
dMARK;
register I32 items = SP - MARK;
- I32 hasargs = (op->op_flags & OPf_STACKED) != 0;
- I32 gimme = GIMME;
AV* padlist = CvPADLIST(cv);
SV** svp = AvARRAY(padlist);
- push_return(op->op_next);
+ push_return(PL_op->op_next);
PUSHBLOCK(cx, CXt_SUB, MARK);
PUSHSUB(cx);
CvDEPTH(cv)++;
+ /* XXX This would be a natural place to set C<PL_compcv = cv> so
+ * that eval'' ops within this sub know the correct lexical space.
+ * Owing the speed considerations, we choose to search for the cv
+ * in doeval() instead.
+ */
if (CvDEPTH(cv) < 2)
(void)SvREFCNT_inc(cv);
else { /* save temporaries on recursion? */
- if (CvDEPTH(cv) == 100 && dowarn)
- warn("Deep recursion on subroutine \"%s\"",GvENAME(CvGV(cv)));
- if (CvDEPTH(cv) > AvFILL(padlist)) {
+ PERL_STACK_OVERFLOW_CHECK();
+ if (CvDEPTH(cv) > AvFILLp(padlist)) {
AV *av;
AV *newpad = newAV();
- AV *oldpad = (AV*)AvARRAY(svp[CvDEPTH(cv)-1]);
- I32 ix = AvFILL((AV*)svp[1]);
+ SV **oldpad = AvARRAY(svp[CvDEPTH(cv)-1]);
+ I32 ix = AvFILLp((AV*)svp[1]);
+ I32 names_fill = AvFILLp((AV*)svp[0]);
svp = AvARRAY(svp[0]);
for ( ;ix > 0; ix--) {
- if (svp[ix] != &sv_undef) {
+ if (names_fill >= ix && svp[ix] != &PL_sv_undef) {
char *name = SvPVX(svp[ix]);
- if (SvFLAGS(svp[ix]) & SVf_FAKE) { /* outer lexical? */
- av_store(newpad, ix,
- SvREFCNT_inc(AvARRAY(oldpad)[ix]) );
+ if ((SvFLAGS(svp[ix]) & SVf_FAKE) /* outer lexical? */
+ || *name == '&') /* anonymous code? */
+ {
+ av_store(newpad, ix, SvREFCNT_inc(oldpad[ix]));
}
else { /* our own lexical */
if (*name == '@')
SvPADMY_on(sv);
}
}
+ else if (IS_PADGV(oldpad[ix]) || IS_PADCONST(oldpad[ix])) {
+ av_store(newpad, ix, sv = SvREFCNT_inc(oldpad[ix]));
+ }
else {
av_store(newpad, ix, sv = NEWSV(0,0));
SvPADTMP_on(sv);
av_store(newpad, 0, (SV*)av);
AvFLAGS(av) = AVf_REIFY;
av_store(padlist, CvDEPTH(cv), (SV*)newpad);
- AvFILL(padlist) = CvDEPTH(cv);
+ AvFILLp(padlist) = CvDEPTH(cv);
svp = AvARRAY(padlist);
}
}
- SAVESPTR(curpad);
- curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]);
- if (hasargs) {
- AV* av = (AV*)curpad[0];
+#ifdef USE_THREADS
+ if (!hasargs) {
+ AV* av = (AV*)PL_curpad[0];
+
+ items = AvFILLp(av) + 1;
+ if (items) {
+ /* Mark is at the end of the stack. */
+ EXTEND(SP, items);
+ Copy(AvARRAY(av), SP + 1, items, SV*);
+ SP += items;
+ PUTBACK ;
+ }
+ }
+#endif /* USE_THREADS */
+ SAVEVPTR(PL_curpad);
+ PL_curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]);
+#ifndef USE_THREADS
+ if (hasargs)
+#endif /* USE_THREADS */
+ {
+ AV* av;
SV** ary;
+#if 0
+ DEBUG_S(PerlIO_printf(Perl_debug_log,
+ "%p entersub preparing @_\n", thr));
+#endif
+ av = (AV*)PL_curpad[0];
if (AvREAL(av)) {
+ /* @_ is normally not REAL--this should only ever
+ * happen when DB::sub() calls things that modify @_ */
av_clear(av);
AvREAL_off(av);
+ AvREIFY_on(av);
}
- cx->blk_sub.savearray = GvAV(defgv);
+#ifndef USE_THREADS
+ cx->blk_sub.savearray = GvAV(PL_defgv);
+ GvAV(PL_defgv) = (AV*)SvREFCNT_inc(av);
+#endif /* USE_THREADS */
cx->blk_sub.argarray = av;
- GvAV(defgv) = cx->blk_sub.argarray;
++MARK;
if (items > AvMAX(av) + 1) {
}
}
Copy(MARK,AvARRAY(av),items,SV*);
- AvFILL(av) = items - 1;
+ AvFILLp(av) = items - 1;
while (items--) {
if (*MARK)
MARK++;
}
}
+ /* warning must come *after* we fully set up the context
+ * stuff so that __WARN__ handlers can safely dounwind()
+ * if they want to
+ */
+ if (CvDEPTH(cv) == 100 && ckWARN(WARN_RECURSION)
+ && !(PERLDB_SUB && cv == GvCV(PL_DBsub)))
+ sub_crush_depth(cv);
+#if 0
+ DEBUG_S(PerlIO_printf(Perl_debug_log,
+ "%p entersub returning %p\n", thr, CvSTART(cv)));
+#endif
RETURNOP(CvSTART(cv));
}
}
+void
+Perl_sub_crush_depth(pTHX_ CV *cv)
+{
+ if (CvANON(cv))
+ Perl_warner(aTHX_ WARN_RECURSION, "Deep recursion on anonymous subroutine");
+ else {
+ SV* tmpstr = sv_newmortal();
+ gv_efullname3(tmpstr, CvGV(cv), Nullch);
+ Perl_warner(aTHX_ WARN_RECURSION, "Deep recursion on subroutine \"%s\"",
+ SvPVX(tmpstr));
+ }
+}
+
PP(pp_aelem)
{
- dSP;
+ djSP;
SV** svp;
I32 elem = POPi;
- AV *av = (AV*)POPs;
- I32 lval = op->op_flags & OPf_MOD;
+ AV* av = (AV*)POPs;
+ U32 lval = PL_op->op_flags & OPf_MOD;
+ U32 defer = (PL_op->op_private & OPpLVAL_DEFER) && (elem > AvFILL(av));
+ SV *sv;
if (elem > 0)
- elem -= curcop->cop_arybase;
+ elem -= PL_curcop->cop_arybase;
if (SvTYPE(av) != SVt_PVAV)
RETPUSHUNDEF;
- svp = av_fetch(av, elem, lval);
+ svp = av_fetch(av, elem, lval && !defer);
if (lval) {
- if (!svp || *svp == &sv_undef)
- DIE(no_aelem, elem);
- if (op->op_private & OPpLVAL_INTRO)
- save_svref(svp);
- else if (op->op_private & (OPpDEREF_HV|OPpDEREF_AV)) {
- SV* sv = *svp;
- if (SvGMAGICAL(sv))
- mg_get(sv);
- if (!SvOK(sv)) {
- (void)SvUPGRADE(sv, SVt_RV);
- SvRV(sv) = (op->op_private & OPpDEREF_HV ?
- (SV*)newHV() : (SV*)newAV());
- SvROK_on(sv);
- SvSETMAGIC(sv);
- }
+ if (!svp || *svp == &PL_sv_undef) {
+ SV* lv;
+ if (!defer)
+ DIE(aTHX_ PL_no_aelem, elem);
+ lv = sv_newmortal();
+ sv_upgrade(lv, SVt_PVLV);
+ LvTYPE(lv) = 'y';
+ sv_magic(lv, Nullsv, 'y', Nullch, 0);
+ LvTARG(lv) = SvREFCNT_inc(av);
+ LvTARGOFF(lv) = elem;
+ LvTARGLEN(lv) = 1;
+ PUSHs(lv);
+ RETURN;
}
- }
- PUSHs(svp ? *svp : &sv_undef);
+ if (PL_op->op_private & OPpLVAL_INTRO)
+ save_aelem(av, elem, svp);
+ else if (PL_op->op_private & OPpDEREF)
+ vivify_ref(*svp, PL_op->op_private & OPpDEREF);
+ }
+ sv = (svp ? *svp : &PL_sv_undef);
+ if (!lval && SvGMAGICAL(sv)) /* see note in pp_helem() */
+ sv = sv_mortalcopy(sv);
+ PUSHs(sv);
RETURN;
}
+void
+Perl_vivify_ref(pTHX_ SV *sv, U32 to_what)
+{
+ if (SvGMAGICAL(sv))
+ mg_get(sv);
+ if (!SvOK(sv)) {
+ if (SvREADONLY(sv))
+ Perl_croak(aTHX_ PL_no_modify);
+ if (SvTYPE(sv) < SVt_RV)
+ sv_upgrade(sv, SVt_RV);
+ else if (SvTYPE(sv) >= SVt_PV) {
+ (void)SvOOK_off(sv);
+ Safefree(SvPVX(sv));
+ SvLEN(sv) = SvCUR(sv) = 0;
+ }
+ switch (to_what) {
+ case OPpDEREF_SV:
+ SvRV(sv) = NEWSV(355,0);
+ break;
+ case OPpDEREF_AV:
+ SvRV(sv) = (SV*)newAV();
+ break;
+ case OPpDEREF_HV:
+ SvRV(sv) = (SV*)newHV();
+ break;
+ }
+ SvROK_on(sv);
+ SvSETMAGIC(sv);
+ }
+}
+
PP(pp_method)
{
- dSP;
+ djSP;
+ SV* sv = TOPs;
+
+ if (SvROK(sv)) {
+ SV* rsv = SvRV(sv);
+ if (SvTYPE(rsv) == SVt_PVCV) {
+ SETs(rsv);
+ RETURN;
+ }
+ }
+
+ SETs(method_common(sv, Null(U32*)));
+ RETURN;
+}
+
+PP(pp_method_named)
+{
+ djSP;
+ SV* sv = cSVOP->op_sv;
+ U32 hash = SvUVX(sv);
+
+ XPUSHs(method_common(sv, &hash));
+ RETURN;
+}
+
+STATIC SV *
+S_method_common(pTHX_ SV* meth, U32* hashp)
+{
SV* sv;
SV* ob;
GV* gv;
- SV* nm;
+ HV* stash;
+ char* name;
+ STRLEN namelen;
+ char* packname;
+ STRLEN packlen;
- nm = TOPs;
- sv = *(stack_base + TOPMARK + 1);
-
- gv = 0;
+ name = SvPV(meth, namelen);
+ sv = *(PL_stack_base + TOPMARK + 1);
+
+ if (SvGMAGICAL(sv))
+ mg_get(sv);
if (SvROK(sv))
- ob = SvRV(sv);
+ ob = (SV*)SvRV(sv);
else {
GV* iogv;
- char* packname = 0;
+ packname = Nullch;
if (!SvOK(sv) ||
- !(packname = SvPV(sv, na)) ||
+ !(packname = SvPV(sv, packlen)) ||
!(iogv = gv_fetchpv(packname, FALSE, SVt_PVIO)) ||
!(ob=(SV*)GvIO(iogv)))
{
- char *name = SvPV(nm, na);
- HV *stash;
- if (!packname || !isALPHA(*packname))
-DIE("Can't call method \"%s\" without a package or object reference", name);
- if (!(stash = gv_stashpv(packname, FALSE))) {
- if (gv_stashpv("UNIVERSAL", FALSE))
- stash = gv_stashpv(packname, TRUE);
- else
- DIE("Can't call method \"%s\" in empty package \"%s\"",
- name, packname);
- }
- gv = gv_fetchmethod(stash,name);
- if (!gv)
- DIE("Can't locate object method \"%s\" via package \"%s\"",
- name, packname);
- SETs(gv);
- RETURN;
+ if (!packname ||
+ ((*(U8*)packname >= 0xc0 && DO_UTF8(sv))
+ ? !isIDFIRST_utf8((U8*)packname)
+ : !isIDFIRST(*packname)
+ ))
+ {
+ Perl_croak(aTHX_ "Can't call method \"%s\" %s", name,
+ SvOK(sv) ? "without a package or object reference"
+ : "on an undefined value");
+ }
+ stash = gv_stashpvn(packname, packlen, TRUE);
+ goto fetch;
}
- *(stack_base + TOPMARK + 1) = iogv;
+ *(PL_stack_base + TOPMARK + 1) = sv_2mortal(newRV((SV*)iogv));
}
- if (!ob || !SvOBJECT(ob)) {
- char *name = SvPV(nm, na);
- DIE("Can't call method \"%s\" on unblessed reference", name);
+ if (!ob || !(SvOBJECT(ob)
+ || (SvTYPE(ob) == SVt_PVGV && (ob = (SV*)GvIO((GV*)ob))
+ && SvOBJECT(ob))))
+ {
+ Perl_croak(aTHX_ "Can't call method \"%s\" on unblessed reference",
+ name);
}
- if (!gv) { /* nothing cached */
- char *name = SvPV(nm, na);
- gv = gv_fetchmethod(SvSTASH(ob),name);
- if (!gv)
- DIE("Can't locate object method \"%s\" via package \"%s\"",
- name, HvNAME(SvSTASH(ob)));
+ stash = SvSTASH(ob);
+
+ fetch:
+ /* shortcut for simple names */
+ if (hashp) {
+ HE* he = hv_fetch_ent(stash, meth, 0, *hashp);
+ if (he) {
+ gv = (GV*)HeVAL(he);
+ if (isGV(gv) && GvCV(gv) &&
+ (!GvCVGEN(gv) || GvCVGEN(gv) == PL_sub_generation))
+ return (SV*)GvCV(gv);
+ }
}
- SETs(gv);
- RETURN;
+ gv = gv_fetchmethod(stash, name);
+ if (!gv) {
+ char* leaf = name;
+ char* sep = Nullch;
+ char* p;
+
+ for (p = name; *p; p++) {
+ if (*p == '\'')
+ sep = p, leaf = p + 1;
+ else if (*p == ':' && *(p + 1) == ':')
+ sep = p, leaf = p + 2;
+ }
+ if (!sep || ((sep - name) == 5 && strnEQ(name, "SUPER", 5))) {
+ packname = sep ? CopSTASHPV(PL_curcop) : HvNAME(stash);
+ packlen = strlen(packname);
+ }
+ else {
+ packname = name;
+ packlen = sep - name;
+ }
+ Perl_croak(aTHX_
+ "Can't locate object method \"%s\" via package \"%s\"",
+ leaf, packname);
+ }
+ return isGV(gv) ? (SV*)GvCV(gv) : (SV*)gv;
}
+#ifdef USE_THREADS
+static void
+unset_cvowner(pTHXo_ void *cvarg)
+{
+ register CV* cv = (CV *) cvarg;
+#ifdef DEBUGGING
+ dTHR;
+#endif /* DEBUGGING */
+
+ DEBUG_S((PerlIO_printf(Perl_debug_log, "%p unsetting CvOWNER of %p:%s\n",
+ thr, cv, SvPEEK((SV*)cv))));
+ MUTEX_LOCK(CvMUTEXP(cv));
+ DEBUG_S(if (CvDEPTH(cv) != 0)
+ PerlIO_printf(Perl_debug_log, "depth %ld != 0\n",
+ CvDEPTH(cv)););
+ assert(thr == CvOWNER(cv));
+ CvOWNER(cv) = 0;
+ MUTEX_UNLOCK(CvMUTEXP(cv));
+ SvREFCNT_dec(cv);
+}
+#endif /* USE_THREADS */