Replace panic!() with unreachable!()

src/api/client_server/room.rs

@@ -147,7 +147,7 @@ pub async fn create_room_route(
                     );
                 }
                 RoomVersionId::V11 => {} // V11 removed the "creator" key
-                _ => panic!("Unexpected room version {}", room_version),
+                _ => unreachable!("Validity of room version already checked"),
             }
 
             content.insert(
@@ -172,7 +172,7 @@ pub async fn create_room_route(
                 | RoomVersionId::V9
                 | RoomVersionId::V10 => RoomCreateEventContent::new_v1(sender_user.clone()),
                 RoomVersionId::V11 => RoomCreateEventContent::new_v11(),
-                _ => panic!("Unexpected room version {}", room_version),
+                _ => unreachable!("Validity of room version already checked"),
             };
             let mut content = serde_json::from_str::<CanonicalJsonObject>(
                 to_raw_value(&content)
@@ -633,7 +633,7 @@ pub async fn upgrade_room_route(
             // "creator" key no longer exists in V11 rooms
             create_event_content.remove("creator");
         }
-        _ => panic!("Unexpected room version {}", body.new_version)
+        _ => unreachable!("Validity of room version already checked")
     }
     create_event_content.insert(
         "room_version".into(),

src/service/rooms/timeline/mod.rs

@@ -400,11 +400,7 @@ impl Service {
                         }
                     }
                     RoomVersionId::V11 => {
-                        #[derive(Deserialize)]
-                        struct Redaction {
-                            redacts: Option<OwnedEventId>,
-                        }
-                        let content = serde_json::from_str::<Redaction>(pdu.content.get())
+                        let content = serde_json::from_str::<RoomRedactionEventContent>(pdu.content.get())
                             .map_err(|_| {
                                 Error::bad_database("Invalid content in redaction pdu.")
                             })?;
@@ -680,11 +676,7 @@ impl Service {
             .get_room_version(room_id)
             .or_else(|_| {
                 if event_type == TimelineEventType::RoomCreate {
-                    #[derive(Deserialize)]
-                    struct RoomCreate {
-                        room_version: RoomVersionId,
-                    }
-                    let content = serde_json::from_str::<RoomCreate>(content.get())
+                    let content = serde_json::from_str::<RoomCreateEventContent>(content.get())
                         .expect("Invalid content in RoomCreate pdu.");
                     Ok(content.room_version)
                 } else {