/* pp_hot.c
*
- * Copyright (c) 1991-1994, Larry Wall
+ * Copyright (c) 1991-1997, 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.
}
if (tainting && tainted && !SvTAINTED(left))
TAINT_NOT;
- SvSetSV(right, left);
- SvSETMAGIC(right);
+ SvSetMagicSV(right, left);
SETs(right);
RETURN;
}
s = SvPV_force(TARG, len);
}
s = SvPV(right,len);
- sv_catpvn(TARG,s,len);
+ if (SvOK(TARG))
+ sv_catpvn(TARG,s,len);
+ else
+ sv_setpvn(TARG,s,len); /* suppress warning */
SETTARG;
RETURN;
}
if (op->op_private & OPpLVAL_INTRO)
SAVECLEARSV(curpad[op->op_targ]);
else if (op->op_private & OPpDEREF)
- provide_ref(op, curpad[op->op_targ]);
+ vivify_ref(curpad[op->op_targ], op->op_private & OPpDEREF);
}
RETURN;
}
dSP; tryAMAGICbinSET(eq,0);
{
dPOPnv;
- SETs((TOPn == value) ? &sv_yes : &sv_no);
+ SETs(boolSV(TOPn == value));
RETURN;
}
}
PP(pp_preinc)
{
dSP;
- if (SvREADONLY(TOPs))
+ if (SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV)
croak(no_modify);
if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
SvIVX(TOPs) != IV_MAX)
else
gv = defoutgv;
if (SvMAGICAL(gv) && (mg = mg_find((SV*)gv, 'q'))) {
- SV *sv;
-
- PUSHMARK(MARK-1);
+ if (MARK == ORIGMARK) {
+ EXTEND(SP, 1);
+ ++MARK;
+ Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
+ ++SP;
+ }
+ PUSHMARK(MARK - 1);
*MARK = mg->mg_obj;
+ PUTBACK;
ENTER;
perl_call_method("PRINT", G_SCALAR);
LEAVE;
SPAGAIN;
- sv = POPs;
- SP = ORIGMARK;
- PUSHs(sv);
+ MARK = ORIGMARK + 1;
+ *MARK = *SP;
+ SP = MARK;
RETURN;
}
if (!(io = GvIO(gv))) {
PP(pp_rv2av)
{
dSP; dPOPss;
-
AV *av;
if (SvROK(sv)) {
if (op->op_flags & OPf_REF ||
op->op_private & HINT_STRICT_REFS)
DIE(no_usym, "an ARRAY");
+ if (dowarn)
+ warn(warn_uninit);
if (GIMME == G_ARRAY)
RETURN;
RETPUSHUNDEF;
PP(pp_rv2hv)
{
-
dSP; dTOPss;
-
HV *hv;
if (SvROK(sv)) {
if (op->op_flags & OPf_REF ||
op->op_private & HINT_STRICT_REFS)
DIE(no_usym, "a HASH");
+ if (dowarn)
+ warn(warn_uninit);
if (GIMME == G_ARRAY) {
SP--;
RETURN;
else {
dTARGET;
if (HvFILL(hv)) {
- sprintf(buf, "%d/%d", HvFILL(hv), HvMAX(hv)+1);
+ sprintf(buf, "%ld/%ld", (long)HvFILL(hv), (long)HvMAX(hv)+1);
sv_setpv(TARG, buf);
}
else
register SV *sv;
register AV *ary;
+ I32 gimme;
HV *hash;
I32 i;
int magic;
tainting |= (uid && (euid != uid || egid != gid));
}
delaymagic = 0;
- if (GIMME == G_ARRAY) {
+
+ 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
lelem = firstlelem + (relem - firstrelem);
while (relem <= SP)
*relem++ = (lelem <= lastlelem) ? *lelem++ : &sv_undef;
- RETURN;
- }
- else {
- dTARGET;
- SP = firstrelem;
-
- SETi(lastrelem - firstrelem + 1);
- RETURN;
}
+ RETURN;
}
PP(pp_match)
PerlIO *fp;
register IO *io = GvIO(last_in_gv);
register I32 type = op->op_type;
+ I32 gimme = GIMME_V;
MAGIC *mg;
if (SvMAGICAL(last_in_gv) && (mg = mg_find((SV*)last_in_gv, 'q'))) {
XPUSHs(mg->mg_obj);
PUTBACK;
ENTER;
- perl_call_method("READLINE", GIMME);
+ perl_call_method("READLINE", gimme);
LEAVE;
SPAGAIN;
- if (GIMME == G_SCALAR)
- SvSetSV_nosteal(TARG, TOPs);
+ if (gimme == G_SCALAR)
+ SvSetMagicSV_nosteal(TARG, TOPs);
RETURN;
}
fp = Nullfp;
if (!fp) {
if (dowarn && io && !(IoFLAGS(io) & IOf_START))
warn("Read on closed filehandle <%s>", GvENAME(last_in_gv));
- if (GIMME == G_SCALAR) {
+ if (gimme == G_SCALAR) {
(void)SvOK_off(TARG);
PUSHTARG;
}
RETURN;
}
- if (GIMME == G_ARRAY) {
- sv = sv_2mortal(NEWSV(57, 80));
- offset = 0;
- }
- else {
+ 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;
+ }
for (;;) {
if (!sv_gets(sv, fp, offset)) {
PerlIO_clearerr(fp);
else if (type == OP_GLOB) {
(void)do_close(last_in_gv, FALSE);
}
- if (GIMME == G_SCALAR) {
+ if (gimme == G_SCALAR) {
(void)SvOK_off(TARG);
PUSHTARG;
}
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);
{
dSP;
register CONTEXT *cx;
- I32 gimme;
+ I32 gimme = OP_GIMME(op, -1);
- /*
- * 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.
- */
-
- 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;
HE* he;
SV *keysv = POPs;
HV *hv = (HV*)POPs;
- I32 lval = op->op_flags & OPf_MOD;
+ U32 lval = op->op_flags & OPf_MOD;
+ U32 defer = op->op_private & OPpLVAL_DEFER;
if (SvTYPE(hv) != SVt_PVHV)
RETPUSHUNDEF;
- he = hv_fetch_ent(hv, keysv, lval, 0);
+ he = hv_fetch_ent(hv, keysv, lval && !defer, 0);
if (lval) {
- if (!he || HeVAL(he) == &sv_undef)
- DIE(no_helem, SvPV(keysv, na));
+ if (!he || HeVAL(he) == &sv_undef) {
+ SV* lv;
+ SV* key2;
+ if (!defer)
+ DIE(no_helem, SvPV(keysv, na));
+ 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;
+ }
if (op->op_private & OPpLVAL_INTRO) {
if (HvNAME(hv) && isGV(HeVAL(he)))
save_gp((GV*)HeVAL(he), !(op->op_flags & OPf_SPECIAL));
save_svref(&HeVAL(he));
}
else if (op->op_private & OPpDEREF)
- provide_ref(op, HeVAL(he));
+ vivify_ref(HeVAL(he), op->op_private & OPpDEREF);
}
PUSHs(he ? HeVAL(he) : &sv_undef);
RETURN;
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(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;
+ 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 = &sv_undef;
}
+ SP = MARK;
}
- else {
+ else if (gimme == G_ARRAY) {
for (mark = newsp + 1; mark <= SP; mark++)
if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP)))
*mark = sv_mortalcopy(*mark);
if (lv)
SvREFCNT_dec(LvTARG(lv));
else {
- lv = cx->blk_loop.iterlval = newSVsv(sv);
+ lv = cx->blk_loop.iterlval = NEWSV(26, 0);
sv_upgrade(lv, SVt_PVLV);
- sv_magic(lv, Nullsv, 'y', Nullch, 0);
LvTYPE(lv) = 'y';
+ sv_magic(lv, Nullsv, 'y', Nullch, 0);
}
LvTARG(lv) = SvREFCNT_inc(av);
LvTARGOFF(lv) = cx->blk_loop.iterix;
- LvTARGLEN(lv) = 1;
+ LvTARGLEN(lv) = -1;
sv = (SV*)lv;
}
TARG = GvSV(defgv);
EXTEND(SP,1);
}
+ if (SvREADONLY(TARG)
+ || (SvTYPE(TARG) > SVt_PVLV
+ && !(SvTYPE(TARG) == SVt_PVGV && SvFAKE(TARG))))
+ croak(no_modify);
s = SvPV(TARG, len);
- if (!SvPOKp(TARG) || SvREADONLY(TARG) || (SvTYPE(TARG) == SVt_PVGV))
+ if (!SvPOKp(TARG) || SvTYPE(TARG) == SVt_PVGV)
force_on_match = 1;
TAINT_NOT;
/* All done yet? */
if (stack_base + *markstack_ptr > sp) {
I32 items;
+ I32 gimme = GIMME_V;
LEAVE; /* exit outer scope */
(void)POPMARK; /* pop src */
items = --*markstack_ptr - markstack_ptr[-1];
(void)POPMARK; /* pop dst */
SP = stack_base + POPMARK; /* pop original mark */
- if (GIMME != G_ARRAY) {
+ if (gimme == G_SCALAR) {
dTARGET;
XPUSHi(items);
- RETURN;
}
- SP += items;
+ else if (gimme == G_ARRAY)
+ SP += items;
RETURN;
}
else {
}
SP = MARK;
}
- else {
+ else if (gimme == G_ARRAY) {
for (MARK = newsp + 1; MARK <= SP; MARK++) {
if (!SvTEMP(*MARK))
*MARK = sv_mortalcopy(*MARK);
goto retry;
}
/* should call AUTOLOAD now? */
- if ((autogv = gv_autoload(GvESTASH(gv), GvNAME(gv), GvNAMELEN(gv)))) {
+ if ((autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv),
+ FALSE)))
+ {
cv = GvCV(autogv);
goto retry;
}
DIE("Undefined subroutine &%s called", SvPVX(subname));
}
- gimme = GIMME;
+ gimme = GIMME_V;
if ((op->op_private & OPpENTERSUB_DB) && GvCV(DBsub) && !CvNODEBUG(cv)) {
SV *oldsv = sv;
sv = GvSV(DBsub);
dSP;
SV** svp;
I32 elem = POPi;
- AV *av = (AV*)POPs;
- I32 lval = op->op_flags & OPf_MOD;
+ AV* av = (AV*)POPs;
+ U32 lval = op->op_flags & OPf_MOD;
+ U32 defer = (op->op_private & OPpLVAL_DEFER) && (elem > AvFILL(av));
if (elem > 0)
elem -= 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 (!svp || *svp == &sv_undef) {
+ SV* lv;
+ if (!defer)
+ DIE(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;
+ }
if (op->op_private & OPpLVAL_INTRO)
save_svref(svp);
else if (op->op_private & OPpDEREF)
- provide_ref(op, *svp);
+ vivify_ref(*svp, op->op_private & OPpDEREF);
}
PUSHs(svp ? *svp : &sv_undef);
RETURN;
}
void
-provide_ref(op, sv)
-OP* op;
+vivify_ref(sv, to_what)
SV* sv;
+U32 to_what;
{
if (SvGMAGICAL(sv))
mg_get(sv);
Safefree(SvPVX(sv));
SvLEN(sv) = SvCUR(sv) = 0;
}
- switch (op->op_private & OPpDEREF)
- {
+ switch (to_what) {
case OPpDEREF_SV:
SvRV(sv) = newSV(0);
break;
projects / p5sagit/p5-mst-13.2.git / blobdiff