+ return vmg_cb_call1(SV2MGWIZ(mg->mg_ptr)->cb_free, sv, mg->mg_obj);
+}
+
+#if MGf_COPY
+STATIC int vmg_svt_copy(pTHX_ SV *sv, MAGIC *mg, SV *nsv, const char *key,
+# if VMG_HAS_PERL_AND(33256, 5, 11, 0)
+ I32 keylen
+# else
+ int keylen
+# endif
+ ) {
+ SV *keysv;
+ int ret;
+
+ if (keylen == HEf_SVKEY) {
+ keysv = (SV *) key;
+ } else {
+ keysv = newSVpvn(key, keylen);
+ }
+
+ ret = vmg_cb_call3(SV2MGWIZ(mg->mg_ptr)->cb_copy, sv, mg->mg_obj, keysv, nsv);
+
+ if (keylen != HEf_SVKEY) {
+ SvREFCNT_dec(keysv);
+ }
+
+ return ret;
+}
+#endif /* MGf_COPY */
+
+#if 0 /* MGf_DUP */
+STATIC int vmg_svt_dup(pTHX_ MAGIC *mg, CLONE_PARAMS *param) {
+ return 0;
+}
+#endif /* MGf_DUP */
+
+#if MGf_LOCAL
+STATIC int vmg_svt_local(pTHX_ SV *nsv, MAGIC *mg) {
+ return vmg_cb_call1(SV2MGWIZ(mg->mg_ptr)->cb_local, nsv, mg->mg_obj);
+}
+#endif /* MGf_LOCAL */
+
+#if VMG_UVAR
+STATIC I32 vmg_svt_val(pTHX_ IV action, SV *sv) {
+ struct ufuncs *uf;
+ MAGIC *mg;
+ SV *key = NULL;
+
+ mg = mg_find(sv, PERL_MAGIC_uvar);
+ /* mg can't be NULL or we wouldn't be there. */
+ key = mg->mg_obj;
+ uf = (struct ufuncs *) mg->mg_ptr;
+
+ if (uf[1].uf_val != NULL) { uf[1].uf_val(aTHX_ action, sv); }
+ if (uf[1].uf_set != NULL) { uf[1].uf_set(aTHX_ action, sv); }
+
+ action &= HV_FETCH_ISSTORE | HV_FETCH_ISEXISTS | HV_FETCH_LVALUE | HV_DELETE;
+ for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) {
+ MGWIZ *w;
+ if ((mg->mg_type != PERL_MAGIC_ext)
+ || (mg->mg_private < SIG_MIN)
+ || (mg->mg_private > SIG_MAX)) { continue; }
+ w = SV2MGWIZ(mg->mg_ptr);
+ if (!w->uvar) { continue; }
+ switch (action) {
+ case 0:
+ if (w->cb_fetch) { vmg_cb_call2(w->cb_fetch, sv, mg->mg_obj, key); }
+ break;
+ case HV_FETCH_ISSTORE:
+ case HV_FETCH_LVALUE:
+ case (HV_FETCH_ISSTORE|HV_FETCH_LVALUE):
+ if (w->cb_store) { vmg_cb_call2(w->cb_store, sv, mg->mg_obj, key); }
+ break;
+ case HV_FETCH_ISEXISTS:
+ if (w->cb_exists) { vmg_cb_call2(w->cb_exists, sv, mg->mg_obj, key); }
+ break;
+ case HV_DELETE:
+ if (w->cb_delete) { vmg_cb_call2(w->cb_delete, sv, mg->mg_obj, key); }
+ break;
+ }
+ }
+
+ return 0;