fn apply_lists(
user_rooms: &HashMap<OwnedRoomId, RoomInfo>,
lists: &BTreeMap<String, List>,
result: &mut HashMap<OwnedRoomId, MatchedRoom>,
) -> Result<HashMap<String, usize>, SyncV4Error>Expand description
Applies the request’s lists.
NOTE: This updates result in place for every matched room.
Returns the count of rooms that matched each list.