events: Make TypingEventContent non-exhaustive and derive Default for it

ruma-events/src/typing.rs

@@ -10,9 +10,17 @@ use crate::EphemeralRoomEvent;
 pub type TypingEvent = EphemeralRoomEvent<TypingEventContent>;
 
 /// The payload for `TypingEvent`.
-#[derive(Clone, Debug, Deserialize, Serialize, EphemeralRoomEventContent)]
+#[derive(Clone, Debug, Default, Deserialize, Serialize, EphemeralRoomEventContent)]
+#[cfg_attr(not(feature = "unstable-exhaustive-types"), non_exhaustive)]
 #[ruma_event(type = "m.typing")]
 pub struct TypingEventContent {
     /// The list of user IDs typing in this room, if any.
     pub user_ids: Vec<UserId>,
 }
+
+impl TypingEventContent {
+    /// Creates a new `TypingEventContent` with the given user IDs.
+    pub fn new(user_ids: Vec<UserId>) -> Self {
+        Self { user_ids }
+    }
+}

ruma-events/tests/ephemeral_event.rs

@@ -15,9 +15,9 @@ use ruma_events::{
 #[test]
 fn ephemeral_serialize_typing() {
     let aliases_event = EphemeralRoomEvent {
-        content: AnyEphemeralRoomEventContent::Typing(TypingEventContent {
+        content: AnyEphemeralRoomEventContent::Typing(TypingEventContent::new(vec![user_id!(
-            user_ids: vec![user_id!("@carl:example.com")],
+            "@carl:example.com"
-        }),
+        )])),
         room_id: room_id!("!roomid:room.com"),
     };
 
@@ -49,9 +49,7 @@ fn deserialize_ephemeral_typing() {
             .deserialize()
             .unwrap(),
         EphemeralRoomEvent {
-            content: AnyEphemeralRoomEventContent::Typing(TypingEventContent {
+            content: AnyEphemeralRoomEventContent::Typing(TypingEventContent { user_ids, .. }),
-                user_ids,
-            }),
             room_id,
         } if user_ids[0] == user_id!("@carl:example.com")
             && room_id == room_id!("!roomid:room.com")