-
-/* 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
-S_avhv_index_sv(pTHX_ SV* sv)
-{
- I32 index = SvIV(sv);
- if (index < 1)
- Perl_croak(aTHX_ "Bad index while coercing array into hash");
- return index;
-}
-
-STATIC I32
-S_avhv_index(pTHX_ AV *av, SV *keysv, U32 hash)
-{
- HV *keys;
- HE *he;
- STRLEN n_a;
-
- keys = avhv_keys(av);
- he = hv_fetch_ent(keys, keysv, FALSE, hash);
- if (!he)
- Perl_croak(aTHX_ "No such pseudo-hash field \"%s\"", SvPV(keysv,n_a));
- return avhv_index_sv(HeVAL(he));
-}
-
-HV*
-Perl_avhv_keys(pTHX_ AV *av)
-{
- SV **keysp = av_fetch(av, 0, FALSE);
- if (keysp) {
- SV *sv = *keysp;
- if (SvGMAGICAL(sv))
- mg_get(sv);
- if (SvROK(sv)) {
- sv = SvRV(sv);
- if (SvTYPE(sv) == SVt_PVHV)
- return (HV*)sv;
- }
- }
- Perl_croak(aTHX_ "Can't coerce array into hash");
- return Nullhv;
-}
-
-SV**
-Perl_avhv_store_ent(pTHX_ AV *av, SV *keysv, SV *val, U32 hash)
-{
- return av_store(av, avhv_index(av, keysv, hash), val);
-}
-
-SV**
-Perl_avhv_fetch_ent(pTHX_ AV *av, SV *keysv, I32 lval, U32 hash)
-{
- return av_fetch(av, avhv_index(av, keysv, hash), lval);
-}
-
-SV *
-Perl_avhv_delete_ent(pTHX_ AV *av, SV *keysv, I32 flags, U32 hash)
-{
- HV *keys = avhv_keys(av);
- HE *he;
-
- he = hv_fetch_ent(keys, keysv, FALSE, hash);
- if (!he || !SvOK(HeVAL(he)))
- return Nullsv;
-
- return av_delete(av, avhv_index_sv(HeVAL(he)), flags);
-}
-
-/* Check for the existence of an element named by a given key.
- *
- */
-bool
-Perl_avhv_exists_ent(pTHX_ AV *av, SV *keysv, U32 hash)
-{
- HV *keys = avhv_keys(av);
- HE *he;
-
- he = hv_fetch_ent(keys, keysv, FALSE, hash);
- if (!he || !SvOK(HeVAL(he)))
- return FALSE;
-
- return av_exists(av, avhv_index_sv(HeVAL(he)));
-}
-
-HE *
-Perl_avhv_iternext(pTHX_ AV *av)
-{
- HV *keys = avhv_keys(av);
- return hv_iternext(keys);
-}
-
-SV *
-Perl_avhv_iterval(pTHX_ AV *av, register HE *entry)
-{
- SV *sv = hv_iterval(avhv_keys(av), entry);
- return *av_fetch(av, avhv_index_sv(sv), TRUE);
-}