optimize with SmallString; consolidate related re-exports

Signed-off-by: Jason Volk <jason@zemos.net>

src/api/client/sync/v3.rs

@@ -441,7 +441,7 @@ async fn handle_left_room(
 			kind: RoomMember,
 			content: serde_json::from_str(r#"{"membership":"leave"}"#)
 				.expect("this is valid JSON"),
-			state_key: Some(sender_user.to_string()),
+			state_key: Some(sender_user.as_str().into()),
 			unsigned: None,
 			// The following keys are dropped on conversion
 			room_id: room_id.clone(),

src/api/client/sync/v4.rs

@@ -29,7 +29,7 @@ use ruma::{
 		TimelineEventType::*,
 	},
 	serde::Raw,
-	uint, MilliSecondsSinceUnixEpoch, OwnedEventId, OwnedRoomId, OwnedUserId, RoomId, UInt,
+	uint, MilliSecondsSinceUnixEpoch, OwnedEventId, OwnedRoomId, RoomId, UInt, UserId,
 };
 use service::rooms::read_receipt::pack_receipts;
 
@@ -258,12 +258,9 @@ pub(crate) async fn sync_events_v4_route(
 								continue;
 							};
 							if pdu.kind == RoomMember {
-								if let Some(state_key) = &pdu.state_key {
-									let user_id =
-										OwnedUserId::parse(state_key.clone()).map_err(|_| {
-											Error::bad_database("Invalid UserId in member PDU.")
-										})?;
-
+								if let Some(Ok(user_id)) =
+									pdu.state_key.as_deref().map(UserId::parse)
+								{
 									if user_id == *sender_user {
 										continue;
 									}
@@ -275,18 +272,18 @@ pub(crate) async fn sync_events_v4_route(
 											if !share_encrypted_room(
 												&services,
 												sender_user,
-												&user_id,
+												user_id,
 												Some(room_id),
 											)
 											.await
 											{
-												device_list_changes.insert(user_id);
+												device_list_changes.insert(user_id.to_owned());
 											}
 										},
 										| MembershipState::Leave => {
 											// Write down users that have left encrypted rooms we
 											// are in
-											left_encrypted_users.insert(user_id);
+											left_encrypted_users.insert(user_id.to_owned());
 										},
 										| _ => {},
 									}

src/api/client/sync/v5.rs

@@ -25,7 +25,7 @@ use ruma::{
 	},
 	serde::Raw,
 	state_res::TypeStateKey,
-	uint, DeviceId, OwnedEventId, OwnedRoomId, OwnedUserId, RoomId, UInt, UserId,
+	uint, DeviceId, OwnedEventId, OwnedRoomId, RoomId, UInt, UserId,
 };
 use service::{rooms::read_receipt::pack_receipts, PduCount};
 
@@ -765,13 +765,9 @@ async fn collect_e2ee<'a>(
 							continue;
 						};
 						if pdu.kind == TimelineEventType::RoomMember {
-							if let Some(state_key) = &pdu.state_key {
-								let user_id =
-									OwnedUserId::parse(state_key.clone()).map_err(|_| {
-										Error::bad_database("Invalid UserId in member PDU.")
-									})?;
-
-								if user_id == *sender_user {
+							if let Some(Ok(user_id)) = pdu.state_key.as_deref().map(UserId::parse)
+							{
+								if user_id == sender_user {
 									continue;
 								}
 
@@ -782,18 +778,18 @@ async fn collect_e2ee<'a>(
 										if !share_encrypted_room(
 											&services,
 											sender_user,
-											&user_id,
+											user_id,
 											Some(room_id),
 										)
 										.await
 										{
-											device_list_changes.insert(user_id);
+											device_list_changes.insert(user_id.to_owned());
 										}
 									},
 									| MembershipState::Leave => {
 										// Write down users that have left encrypted rooms we
 										// are in
-										left_encrypted_users.insert(user_id);
+										left_encrypted_users.insert(user_id.to_owned());
 									},
 									| _ => {},
 								}