chore: add comment

bdraco · bdraco · commit e3ba478dcea1 · 2025-01-08T14:00:13.000-10:00
diff --git a/src/zeroconf/_cache.py b/src/zeroconf/_cache.py
@@ -311,5 +311,7 @@ def async_mark_unique_records_older_than_1s_to_expire(
 
     def _async_set_created_ttl(self, record: DNSRecord, now: _float, ttl: _float) -> None:
         """Set the created time and ttl of a record."""
+        # It would be better if we made a copy instead of mutating the record
+        # in place, but records currently don't have a copy method.
         record._set_created_ttl(now, ttl)
         self._async_add(record)
diff --git a/src/zeroconf/_dns.py b/src/zeroconf/_dns.py
@@ -227,6 +227,8 @@ def is_recent(self, now: _float) -> bool:
 
     def _set_created_ttl(self, created: _float, ttl: Union[float, int]) -> None:
         """Set the created and ttl of a record."""
+        # It would be better if we made a copy instead of mutating the record
+        # in place, but records currently don't have a copy method.
         self.created = created
         self.ttl = ttl
 
