- if (old_obj != NULL) {
- if (where == REDIS_HEAD) {
- iter = listTypeInitIterator(subject,0,REDIS_TAIL);
- } else {
- iter = listTypeInitIterator(subject,-1,REDIS_HEAD);
- }
+ if (refval != NULL) {
+ /* Note: we expect refval to be string-encoded because it is *not* the
+ * last argument of the multi-bulk LINSERT. */
+ redisAssert(refval->encoding == REDIS_ENCODING_RAW);
+
+ /* We're not sure if this value can be inserted yet, but we cannot
+ * convert the list inside the iterator. We don't want to loop over
+ * the list twice (once to see if the value can be inserted and once
+ * to do the actual insert), so we assume this value can be inserted
+ * and convert the ziplist to a regular list if necessary. */
+ listTypeTryConversion(subject,val);
+
+ /* Seek refval from head to tail */
+ iter = listTypeInitIterator(subject,0,REDIS_TAIL);