Without this feature:
```sh
$ cargo check -p matrix-sdk --features experimental-sliding-sync
Checking matrix-sdk-base v0.6.1 (/Users/hwhost/Development/Element/matrix-rust-sdk/crates/matrix-sdk-base)
error[E0433]: failed to resolve: could not find `poll` in `events`
--> crates/matrix-sdk-base/src/latest_event.rs:7:5
|
7 | poll::unstable_start::SyncUnstablePollStartEvent, room::message::SyncRoomMessageEvent,
| ^^^^ could not find `poll` in `events`
error[E0599]: no variant or associated item named `UnstablePollStart` found for enum `AnySyncMessageLikeEvent` in the current scope
--> crates/matrix-sdk-base/src/latest_event.rs:40:68
|
40 | AnySyncTimelineEvent::MessageLike(AnySyncMessageLikeEvent::UnstablePollStart(poll)) => {
| ^^^^^^^^^^^^^^^^^ variant or associated item not found in `AnySyncMessageLikeEvent`
```
With the feature, everything goes well.
This patch removes `SlidingSyncList::room_list_filtered_stream.
Of course, the only place where it was used,
`RoomList::entries_with_dynamic_adapters` now use `.filter` from
`VectorSubscriberExt`. It's basically less code.
This patch adds `Option<ImageInfo>` as an argument of
`Room::upload_avatar`.
To achieve that, this patch implements
`TryFrom<ImageInfo> for ruma::events::room::avatar::ImageInfo`.
The `TimelineError` type only contains error variants used for
`ImageInfo`, `AudioInfo`, `VideoInfo`, `FileInfo` and so on. It's never
used for something strictly related to the `Timeline`.
This patch then renames `TimelineError` to `MediaInfoError`.
The `MissingMediaInfoField` variant becomes `MediaField`. The
`InvalidMediaInfoField` becomes `InvalidField`.
Use `SharedObservable::set_if_not_eq` instead of `::set`, so that it
doesn't update the limit to the same value, which would be unnecesary in
this case.
This patch removes the `Mutex` around `Subscriber<Option<u32>>` inside
the `RoomListDynamicEntriesController`. The `Mutex` was necessary to
get a mutable reference, so that `Subscriber::next_now` could have been
used. However, it's not necessary to use `new_now` in this particular
context. We can use `get` instead, which take an immutable reference,
thus removing the need for the `Mutex`.
A `Mutex` has a non-negligeable cost. This function can be used in a
critical hot path, and must as fast as possible.
Jonas Platte