/* av.c
*
- * Copyright (c) 1991-1997, Larry Wall
+ * Copyright (c) 1991-1999, 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 (AvREAL(av))
return;
#ifdef DEBUGGING
- if (SvRMAGICAL(av) && mg_find((SV*)av,'P'))
+ if (SvTIED_mg((SV*)av, 'P'))
warn("av_reify called on tied array");
#endif
key = AvMAX(av) + 1;
while (key > AvFILLp(av) + 1)
- AvARRAY(av)[--key] = &sv_undef;
+ AvARRAY(av)[--key] = &PL_sv_undef;
while (key) {
sv = AvARRAY(av)[--key];
assert(sv);
- if (sv != &sv_undef) {
+ if (sv != &PL_sv_undef) {
dTHR;
(void)SvREFCNT_inc(sv);
}
}
key = AvARRAY(av) - AvALLOC(av);
while (key)
- AvALLOC(av)[--key] = &sv_undef;
+ AvALLOC(av)[--key] = &PL_sv_undef;
+ AvREIFY_off(av);
AvREAL_on(av);
}
{
dTHR; /* only necessary if we have to extend stack */
MAGIC *mg;
- if (SvRMAGICAL(av) && (mg = mg_find((SV*)av,'P'))) {
+ if (mg = SvTIED_mg((SV*)av, 'P')) {
dSP;
ENTER;
SAVETMPS;
- PUSHSTACK(SI_MAGIC);
+ PUSHSTACKi(PERLSI_MAGIC);
PUSHMARK(SP);
EXTEND(SP,2);
- PUSHs(mg->mg_obj);
+ PUSHs(SvTIED_obj((SV*)av, mg));
PUSHs(sv_2mortal(newSViv(key+1)));
PUTBACK;
perl_call_method("EXTEND", G_SCALAR|G_DISCARD);
- POPSTACK();
+ POPSTACK;
FREETMPS;
LEAVE;
return;
SvPVX(av) = (char*)AvALLOC(av);
if (AvREAL(av)) {
while (tmp)
- ary[--tmp] = &sv_undef;
+ ary[--tmp] = &PL_sv_undef;
}
if (key > AvMAX(av) - 10) {
U32 bytes;
#endif
+#if defined(MYMALLOC) && !defined(PURIFY) && !defined(LEAKTEST)
+ newmax = malloced_size((void*)AvALLOC(av))/sizeof(SV*) - 1;
+
+ if (key <= newmax)
+ goto resized;
+#endif
newmax = key + AvMAX(av) / 5;
resize:
-#ifdef STRANGE_MALLOC
+#if defined(STRANGE_MALLOC) || defined(MYMALLOC)
Renew(AvALLOC(av),newmax+1, SV*);
#else
bytes = (newmax + 1) * sizeof(SV*);
Safefree(AvALLOC(av));
AvALLOC(av) = ary;
#endif
+ resized:
ary = AvALLOC(av) + AvMAX(av) + 1;
tmp = newmax - AvMAX(av);
- if (av == curstack) { /* Oops, grew stack (via av_store()?) */
- stack_sp = AvALLOC(av) + (stack_sp - stack_base);
- stack_base = AvALLOC(av);
- stack_max = stack_base + newmax;
+ if (av == PL_curstack) { /* Oops, grew stack (via av_store()?) */
+ PL_stack_sp = AvALLOC(av) + (PL_stack_sp - PL_stack_base);
+ PL_stack_base = AvALLOC(av);
+ PL_stack_max = PL_stack_base + newmax;
}
}
else {
- newmax = key < 4 ? 4 : key;
+ newmax = key < 3 ? 3 : key;
New(2,AvALLOC(av), newmax+1, SV*);
ary = AvALLOC(av) + 1;
tmp = newmax;
- AvALLOC(av)[0] = &sv_undef; /* For the stacks */
+ AvALLOC(av)[0] = &PL_sv_undef; /* For the stacks */
}
if (AvREAL(av)) {
while (tmp)
- ary[--tmp] = &sv_undef;
+ ary[--tmp] = &PL_sv_undef;
}
SvPVX(av) = (char*)AvALLOC(av);
}
if (SvRMAGICAL(av)) {
- if (mg_find((SV*)av,'P')) {
+ if (mg_find((SV*)av,'P') || mg_find((SV*)av,'D')) {
dTHR;
sv = sv_newmortal();
mg_copy((SV*)av, sv, 0, key);
- av_fetch_sv = sv;
- return &av_fetch_sv;
+ PL_av_fetch_sv = sv;
+ return &PL_av_fetch_sv;
}
}
if (key > AvFILLp(av)) {
if (!lval)
return 0;
- if (AvREALISH(av))
- sv = NEWSV(5,0);
- else
- sv = sv_newmortal();
+ sv = NEWSV(5,0);
return av_store(av,key,sv);
}
- if (AvARRAY(av)[key] == &sv_undef) {
+ if (AvARRAY(av)[key] == &PL_sv_undef) {
emptyness:
if (lval) {
sv = NEWSV(6,0);
else if (AvREIFY(av)
&& (!AvARRAY(av)[key] /* eg. @_ could have freed elts */
|| SvTYPE(AvARRAY(av)[key]) == SVTYPEMASK)) {
- AvARRAY(av)[key] = &sv_undef; /* 1/2 reify */
+ AvARRAY(av)[key] = &PL_sv_undef; /* 1/2 reify */
goto emptyness;
}
return &AvARRAY(av)[key];
if (!av)
return 0;
if (!val)
- val = &sv_undef;
+ val = &PL_sv_undef;
if (key < 0) {
key += AvFILL(av) + 1;
}
if (SvREADONLY(av) && key >= AvFILL(av))
- croak(no_modify);
+ croak(PL_no_modify);
if (SvRMAGICAL(av)) {
if (mg_find((SV*)av,'P')) {
- if (val != &sv_undef) {
+ if (val != &PL_sv_undef) {
mg_copy((SV*)av, val, 0, key);
}
return 0;
if (AvFILLp(av) < key) {
if (!AvREAL(av)) {
dTHR;
- if (av == curstack && key > stack_sp - stack_base)
- stack_sp = stack_base + key; /* XPUSH in disguise */
+ if (av == PL_curstack && key > PL_stack_sp - PL_stack_base)
+ PL_stack_sp = PL_stack_base + key; /* XPUSH in disguise */
do
- ary[++AvFILLp(av)] = &sv_undef;
+ ary[++AvFILLp(av)] = &PL_sv_undef;
while (AvFILLp(av) < key);
}
AvFILLp(av) = key;
SvREFCNT_dec(ary[key]);
ary[key] = val;
if (SvSMAGICAL(av)) {
- if (val != &sv_undef) {
+ if (val != &PL_sv_undef) {
MAGIC* mg = SvMAGIC(av);
sv_magic(val, (SV*)av, toLOWER(mg->mg_type), 0, key);
}
/*SUPPRESS 560*/
if (SvREADONLY(av))
- croak(no_modify);
+ croak(PL_no_modify);
/* Give any tie a chance to cleanup first */
if (SvRMAGICAL(av))
key = AvFILLp(av) + 1;
while (key) {
SvREFCNT_dec(ary[--key]);
- ary[key] = &sv_undef;
+ ary[key] = &PL_sv_undef;
}
}
if (key = AvARRAY(av) - AvALLOC(av)) {
/*SUPPRESS 560*/
/* Give any tie a chance to cleanup first */
- if (SvRMAGICAL(av) && mg_find((SV*)av,'P'))
+ if (SvTIED_mg((SV*)av, 'P'))
av_fill(av, -1); /* mg_clear() ? */
if (AvREAL(av)) {
if (!av)
return;
if (SvREADONLY(av))
- croak(no_modify);
+ croak(PL_no_modify);
- if (SvRMAGICAL(av) && (mg = mg_find((SV*)av,'P'))) {
+ if (mg = SvTIED_mg((SV*)av, 'P')) {
dSP;
- PUSHSTACK(SI_MAGIC);
+ PUSHSTACKi(PERLSI_MAGIC);
PUSHMARK(SP);
EXTEND(SP,2);
- PUSHs(mg->mg_obj);
+ PUSHs(SvTIED_obj((SV*)av, mg));
PUSHs(val);
PUTBACK;
ENTER;
perl_call_method("PUSH", G_SCALAR|G_DISCARD);
LEAVE;
- POPSTACK();
+ POPSTACK;
return;
}
av_store(av,AvFILLp(av)+1,val);
MAGIC* mg;
if (!av || AvFILL(av) < 0)
- return &sv_undef;
+ return &PL_sv_undef;
if (SvREADONLY(av))
- croak(no_modify);
- if (SvRMAGICAL(av) && (mg = mg_find((SV*)av,'P'))) {
+ croak(PL_no_modify);
+ if (mg = SvTIED_mg((SV*)av, 'P')) {
dSP;
- PUSHSTACK(SI_MAGIC);
+ PUSHSTACKi(PERLSI_MAGIC);
PUSHMARK(SP);
- XPUSHs(mg->mg_obj);
+ XPUSHs(SvTIED_obj((SV*)av, mg));
PUTBACK;
ENTER;
if (perl_call_method("POP", G_SCALAR)) {
- retval = newSVsv(*stack_sp--);
+ retval = newSVsv(*PL_stack_sp--);
} else {
- retval = &sv_undef;
+ retval = &PL_sv_undef;
}
LEAVE;
- POPSTACK();
+ POPSTACK;
return retval;
}
retval = AvARRAY(av)[AvFILLp(av)];
- AvARRAY(av)[AvFILLp(av)--] = &sv_undef;
+ AvARRAY(av)[AvFILLp(av)--] = &PL_sv_undef;
if (SvSMAGICAL(av))
mg_set((SV*)av);
return retval;
if (!av || num <= 0)
return;
if (SvREADONLY(av))
- croak(no_modify);
+ croak(PL_no_modify);
- if (SvRMAGICAL(av) && (mg = mg_find((SV*)av,'P'))) {
+ if (mg = SvTIED_mg((SV*)av, 'P')) {
dSP;
- PUSHSTACK(SI_MAGIC);
+ PUSHSTACKi(PERLSI_MAGIC);
PUSHMARK(SP);
EXTEND(SP,1+num);
- PUSHs(mg->mg_obj);
+ PUSHs(SvTIED_obj((SV*)av, mg));
while (num-- > 0) {
- PUSHs(&sv_undef);
+ PUSHs(&PL_sv_undef);
}
PUTBACK;
ENTER;
perl_call_method("UNSHIFT", G_SCALAR|G_DISCARD);
LEAVE;
- POPSTACK();
+ POPSTACK;
return;
}
ary = AvARRAY(av);
Move(ary, ary + num, i + 1, SV*);
do {
- ary[--num] = &sv_undef;
+ ary[--num] = &PL_sv_undef;
} while (num);
}
}
MAGIC* mg;
if (!av || AvFILL(av) < 0)
- return &sv_undef;
+ return &PL_sv_undef;
if (SvREADONLY(av))
- croak(no_modify);
- if (SvRMAGICAL(av) && (mg = mg_find((SV*)av,'P'))) {
+ croak(PL_no_modify);
+ if (mg = SvTIED_mg((SV*)av, 'P')) {
dSP;
- PUSHSTACK(SI_MAGIC);
+ PUSHSTACKi(PERLSI_MAGIC);
PUSHMARK(SP);
- XPUSHs(mg->mg_obj);
+ XPUSHs(SvTIED_obj((SV*)av, mg));
PUTBACK;
ENTER;
if (perl_call_method("SHIFT", G_SCALAR)) {
- retval = newSVsv(*stack_sp--);
+ retval = newSVsv(*PL_stack_sp--);
} else {
- retval = &sv_undef;
+ retval = &PL_sv_undef;
}
LEAVE;
- POPSTACK();
+ POPSTACK;
return retval;
}
retval = *AvARRAY(av);
if (AvREAL(av))
- *AvARRAY(av) = &sv_undef;
+ *AvARRAY(av) = &PL_sv_undef;
SvPVX(av) = (char*)(AvARRAY(av) + 1);
AvMAX(av)--;
AvFILLp(av)--;
croak("panic: null array");
if (fill < 0)
fill = -1;
- if (SvRMAGICAL(av) && (mg = mg_find((SV*)av,'P'))) {
+ if (mg = SvTIED_mg((SV*)av, 'P')) {
dSP;
ENTER;
SAVETMPS;
- PUSHSTACK(SI_MAGIC);
+ PUSHSTACKi(PERLSI_MAGIC);
PUSHMARK(SP);
EXTEND(SP,2);
- PUSHs(mg->mg_obj);
+ PUSHs(SvTIED_obj((SV*)av, mg));
PUSHs(sv_2mortal(newSViv(fill+1)));
PUTBACK;
perl_call_method("STORESIZE", G_SCALAR|G_DISCARD);
- POPSTACK();
+ POPSTACK;
FREETMPS;
LEAVE;
return;
if (AvREAL(av)) {
while (key > fill) {
SvREFCNT_dec(ary[key]);
- ary[key--] = &sv_undef;
+ ary[key--] = &PL_sv_undef;
}
}
else {
while (key < fill)
- ary[++key] = &sv_undef;
+ ary[++key] = &PL_sv_undef;
}
AvFILLp(av) = fill;
mg_set((SV*)av);
}
else
- (void)av_store(av,fill,&sv_undef);
+ (void)av_store(av,fill,&PL_sv_undef);
+}
+
+
+/* AVHV: Support for treating arrays as if they were hashes. The
+ * first element of the array should be a hash reference that maps
+ * hash keys to array indices.
+ */
+
+STATIC I32
+avhv_index_sv(SV* sv)
+{
+ I32 index = SvIV(sv);
+ if (index < 1)
+ croak("Bad index while coercing array into hash");
+ return index;
}
-
HV*
avhv_keys(AV *av)
{
- SV **keysp;
- HV *keys = Nullhv;
-
- keysp = av_fetch(av, 0, FALSE);
+ SV **keysp = av_fetch(av, 0, FALSE);
if (keysp) {
SV *sv = *keysp;
if (SvGMAGICAL(sv))
if (SvROK(sv)) {
sv = SvRV(sv);
if (SvTYPE(sv) == SVt_PVHV)
- keys = (HV*)sv;
+ return (HV*)sv;
}
}
- if (!keys)
- croak("Can't coerce array into hash");
- return keys;
-}
-
-SV**
-avhv_fetch(AV *av, char *key, U32 klen, I32 lval)
-{
- SV **indsvp;
- HV *keys = avhv_keys(av);
- I32 ind;
-
- indsvp = hv_fetch(keys, key, klen, FALSE);
- if (indsvp) {
- ind = SvIV(*indsvp);
- if (ind < 1)
- croak("Bad index while coercing array into hash");
- } else {
- if (!lval)
- return 0;
-
- ind = AvFILL(av) + 1;
- hv_store(keys, key, klen, newSViv(ind), 0);
- }
- return av_fetch(av, ind, lval);
+ croak("Can't coerce array into hash");
+ return Nullhv;
}
SV**
SV **indsvp;
HV *keys = avhv_keys(av);
HE *he;
- I32 ind;
he = hv_fetch_ent(keys, keysv, FALSE, hash);
- if (he) {
- ind = SvIV(HeVAL(he));
- if (ind < 1)
- croak("Bad index while coercing array into hash");
- } else {
- if (!lval)
- return 0;
-
- ind = AvFILL(av) + 1;
- hv_store_ent(keys, keysv, newSViv(ind), 0);
- }
- return av_fetch(av, ind, lval);
-}
-
-SV**
-avhv_store(AV *av, char *key, U32 klen, SV *val, U32 hash)
-{
- SV **indsvp;
- HV *keys = avhv_keys(av);
- I32 ind;
-
- indsvp = hv_fetch(keys, key, klen, FALSE);
- if (indsvp) {
- ind = SvIV(*indsvp);
- if (ind < 1)
- croak("Bad index while coercing array into hash");
- } else {
- ind = AvFILL(av) + 1;
- hv_store(keys, key, klen, newSViv(ind), hash);
- }
- return av_store(av, ind, val);
-}
-
-SV**
-avhv_store_ent(AV *av, SV *keysv, SV *val, U32 hash)
-{
- HV *keys = avhv_keys(av);
- HE *he;
- I32 ind;
-
- he = hv_fetch_ent(keys, keysv, FALSE, hash);
- if (he) {
- ind = SvIV(HeVAL(he));
- if (ind < 1)
- croak("Bad index while coercing array into hash");
- } else {
- ind = AvFILL(av) + 1;
- hv_store_ent(keys, keysv, newSViv(ind), hash);
- }
- return av_store(av, ind, val);
+ if (!he)
+ croak("No such array field");
+ return av_fetch(av, avhv_index_sv(HeVAL(he)), lval);
}
bool
return hv_exists_ent(keys, keysv, hash);
}
-bool
-avhv_exists(AV *av, char *key, U32 klen)
-{
- HV *keys = avhv_keys(av);
- return hv_exists(keys, key, klen);
-}
-
-/* avhv_delete leaks. Caller can re-index and compress if so desired. */
-SV *
-avhv_delete(AV *av, char *key, U32 klen, I32 flags)
-{
- HV *keys = avhv_keys(av);
- SV *sv;
- SV **svp;
- I32 ind;
-
- sv = hv_delete(keys, key, klen, 0);
- if (!sv)
- return Nullsv;
- ind = SvIV(sv);
- if (ind < 1)
- croak("Bad index while coercing array into hash");
- svp = av_fetch(av, ind, FALSE);
- if (!svp)
- return Nullsv;
- if (flags & G_DISCARD) {
- sv = Nullsv;
- SvREFCNT_dec(*svp);
- } else {
- sv = sv_2mortal(*svp);
- }
- *svp = &sv_undef;
- return sv;
-}
-
-/* avhv_delete_ent leaks. Caller can re-index and compress if so desired. */
-SV *
-avhv_delete_ent(AV *av, SV *keysv, I32 flags, U32 hash)
-{
- HV *keys = avhv_keys(av);
- SV *sv;
- SV **svp;
- I32 ind;
-
- sv = hv_delete_ent(keys, keysv, 0, hash);
- if (!sv)
- return Nullsv;
- ind = SvIV(sv);
- if (ind < 1)
- croak("Bad index while coercing array into hash");
- svp = av_fetch(av, ind, FALSE);
- if (!svp)
- return Nullsv;
- if (flags & G_DISCARD) {
- sv = Nullsv;
- SvREFCNT_dec(*svp);
- } else {
- sv = sv_2mortal(*svp);
- }
- *svp = &sv_undef;
- return sv;
-}
-
-I32
-avhv_iterinit(AV *av)
-{
- HV *keys = avhv_keys(av);
- return hv_iterinit(keys);
-}
-
HE *
avhv_iternext(AV *av)
{
SV *
avhv_iterval(AV *av, register HE *entry)
{
- HV *keys = avhv_keys(av);
- SV *sv;
- I32 ind;
-
- sv = hv_iterval(keys, entry);
- ind = SvIV(sv);
- if (ind < 1)
- croak("Bad index while coercing array into hash");
- return *av_fetch(av, ind, TRUE);
-}
-
-SV *
-avhv_iternextsv(AV *av, char **key, I32 *retlen)
-{
- HV *keys = avhv_keys(av);
- HE *he;
- SV *sv;
- I32 ind;
-
- he = hv_iternext(keys);
- if (!he)
- return Nullsv;
- *key = hv_iterkey(he, retlen);
- sv = hv_iterval(keys, he);
- ind = SvIV(sv);
- if (ind < 1)
- croak("Bad index while coercing array into hash");
- return *av_fetch(av, ind, TRUE);
+ SV *sv = hv_iterval(avhv_keys(av), entry);
+ return *av_fetch(av, avhv_index_sv(sv), TRUE);
}
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