+ /* Release anything contained inside an extension or submsg.
+ * This has to be done even if the submsg itself is statically
+ * allocated. */
+ if (PB_LTYPE(type) == PB_LTYPE_EXTENSION)
+ {
+ /* Release fields from all extensions in the linked list */
+ pb_extension_t *ext = *(pb_extension_t**)iter->pData;
+ while (ext != NULL)
+ {
+ pb_field_iter_t ext_iter;
+ iter_from_extension(&ext_iter, ext);
+ pb_release_single_field(&ext_iter);
+ ext = ext->next;
+ }
+ }
+ else if (PB_LTYPE(type) == PB_LTYPE_SUBMESSAGE)
+ {
+ /* Release fields in submessage or submsg array */
+ void *pItem = iter->pData;
+ pb_size_t count = 1;
+
+ if (PB_ATYPE(type) == PB_ATYPE_POINTER)
+ {
+ pItem = *(void**)iter->pData;
+ }
+
+ if (PB_HTYPE(type) == PB_HTYPE_REPEATED)
+ {
+ count = *(pb_size_t*)iter->pSize;
+ }
+
+ if (pItem)
+ {
+ while (count--)
+ {
+ pb_release((const pb_field_t*)iter->pos->ptr, pItem);
+ pItem = (uint8_t*)pItem + iter->pos->data_size;
+ }
+ }
+ }
+