chore: Fix several style lints (#17488)

It's not comprehensive enough to start linting on `style` group, but
hey, it's a start.

Release Notes:

- N/A

Cargo.toml

@@ -573,6 +573,11 @@ single_range_in_vec_init = "allow"
 # There are a bunch of rules currently failing in the `style` group, so
 # allow all of those, for now.
 style = { level = "allow", priority = -1 }
+# We often return trait objects from `new` functions.
+new_ret_no_self = { level = "allow" }
+# We have a few `next` functions that differ in lifetimes
+# compared to Iterator::next. Yet, clippy complains about those.
+should_implement_trait = { level = "allow" }
 
 # Individual rules that have violations in the codebase:
 type_complexity = "allow"

crates/anthropic/src/anthropic.rs

@@ -16,7 +16,7 @@ use util::ResultExt as _;
 
 pub use supported_countries::*;
 
-pub const ANTHROPIC_API_URL: &'static str = "https://api.anthropic.com";
+pub const ANTHROPIC_API_URL: &str = "https://api.anthropic.com";
 
 #[cfg_attr(feature = "schemars", derive(schemars::JsonSchema))]
 #[derive(Clone, Debug, Default, Serialize, Deserialize, PartialEq)]
@@ -339,17 +339,15 @@ pub async fn extract_tool_args_from_events(
     while let Some(event) = events.next().await {
         if let Event::ContentBlockStart {
             index,
-            content_block,
+            content_block: ResponseContent::ToolUse { name, .. },
         } = event?
         {
-            if let ResponseContent::ToolUse { name, .. } = content_block {
             if name == tool_name {
                 tool_use_index = Some(index);
                 break;
             }
         }
     }
-    }
 
     let Some(tool_use_index) = tool_use_index else {
         return Err(anyhow!("tool not used"));
@@ -610,9 +608,6 @@ impl ApiError {
     }
 
     pub fn is_rate_limit_error(&self) -> bool {
-        match self.error_type.as_str() {
-            "rate_limit_error" => true,
-            _ => false,
-        }
+        matches!(self.error_type.as_str(), "rate_limit_error")
     }
 }

crates/audio/src/assets.rs

@@ -44,7 +44,7 @@ impl SoundRegistry {
         let bytes = self
             .assets
             .load(&path)?
-            .map(|asset| Ok(asset))
+            .map(Ok)
             .unwrap_or_else(|| Err(anyhow::anyhow!("No such asset available")))?
             .into_owned();
         let cursor = Cursor::new(bytes);

crates/audio/src/audio.rs

@@ -33,6 +33,7 @@ impl Sound {
     }
 }
 
+#[derive(Default)]
 pub struct Audio {
     _output_stream: Option<OutputStream>,
     output_handle: Option<OutputStreamHandle>,
@@ -45,10 +46,7 @@ impl Global for GlobalAudio {}
 
 impl Audio {
     pub fn new() -> Self {
-        Self {
-            _output_stream: None,
-            output_handle: None,
-        }
+        Self::default()
     }
 
     fn ensure_output_exists(&mut self) -> Option<&OutputStreamHandle> {

crates/auto_update/src/auto_update.rs

@@ -95,7 +95,7 @@ struct MacOsUnmounter {
 impl Drop for MacOsUnmounter {
     fn drop(&mut self) {
         let unmount_output = std::process::Command::new("hdiutil")
-            .args(&["detach", "-force"])
+            .args(["detach", "-force"])
             .arg(&self.mount_path)
             .output();
 
@@ -211,7 +211,7 @@ pub fn check(_: &Check, cx: &mut WindowContext) {
         return;
     }
 
-    if let Some(message) = env::var("ZED_UPDATE_EXPLANATION").ok() {
+    if let Ok(message) = env::var("ZED_UPDATE_EXPLANATION") {
         drop(cx.prompt(
             gpui::PromptLevel::Info,
             "Zed was installed via a package manager.",
@@ -254,7 +254,7 @@ pub fn view_release_notes(_: &ViewReleaseNotes, cx: &mut AppContext) -> Option<(
         let url = &auto_updater
             .http_client
             .build_url(&format!("/releases/{release_channel}/{current_version}"));
-        cx.open_url(&url);
+        cx.open_url(url);
     }
 
     None
@@ -722,7 +722,7 @@ async fn install_release_linux(
     }
 
     let output = Command::new("rsync")
-        .args(&["-av", "--delete"])
+        .args(["-av", "--delete"])
         .arg(&from)
         .arg(&to)
         .output()
@@ -754,10 +754,10 @@ async fn install_release_macos(
 
     mounted_app_path.push("/");
     let output = Command::new("hdiutil")
-        .args(&["attach", "-nobrowse"])
+        .args(["attach", "-nobrowse"])
         .arg(&downloaded_dmg)
         .arg("-mountroot")
-        .arg(&temp_dir.path())
+        .arg(temp_dir.path())
         .output()
         .await?;
 
@@ -773,7 +773,7 @@ async fn install_release_macos(
     };
 
     let output = Command::new("rsync")
-        .args(&["-av", "--delete"])
+        .args(["-av", "--delete"])
         .arg(&mounted_app_path)
         .arg(&running_app_path)
         .output()

crates/breadcrumbs/src/breadcrumbs.rs

@@ -18,6 +18,12 @@ pub struct Breadcrumbs {
     subscription: Option<Subscription>,
 }
 
+impl Default for Breadcrumbs {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Breadcrumbs {
     pub fn new() -> Self {
         Self {

crates/call/src/room.rs

@@ -259,13 +259,13 @@ impl Room {
                 None
             };
 
-            match room
+            let did_join = room
                 .update(&mut cx, |room, cx| {
                     room.leave_when_empty = true;
                     room.call(called_user_id, initial_project_id, cx)
                 })?
-                .await
-            {
+                .await;
+            match did_join {
                 Ok(()) => Ok(room),
                 Err(error) => Err(error.context("room creation failed")),
             }
@@ -493,7 +493,7 @@ impl Room {
         // we leave the room and return an error.
         if let Some(this) = this.upgrade() {
             log::info!("reconnection failed, leaving room");
-            let _ = this.update(&mut cx, |this, cx| this.leave(cx))?.await?;
+            this.update(&mut cx, |this, cx| this.leave(cx))?.await?;
         }
         Err(anyhow!(
             "can't reconnect to room: client failed to re-establish connection"
@@ -933,7 +933,7 @@ impl Room {
                     let list = this
                         .follows_by_leader_id_project_id
                         .entry((leader, project_id))
-                        .or_insert(Vec::new());
+                        .or_default();
                     if !list.contains(&follower) {
                         list.push(follower);
                     }
@@ -942,7 +942,7 @@ impl Room {
                 this.pending_room_update.take();
                 if this.should_leave() {
                     log::info!("room is empty, leaving");
-                    let _ = this.leave(cx).detach();
+                    this.leave(cx).detach();
                 }
 
                 this.user_store.update(cx, |user_store, cx| {
@@ -1017,19 +1017,11 @@ impl Room {
                     .collect::<Vec<u64>>();
                 speaker_ids.sort_unstable();
                 for (sid, participant) in &mut self.remote_participants {
-                    if let Ok(_) = speaker_ids.binary_search(sid) {
-                        participant.speaking = true;
-                    } else {
-                        participant.speaking = false;
-                    }
+                    participant.speaking = speaker_ids.binary_search(sid).is_ok();
                 }
                 if let Some(id) = self.client.user_id() {
                     if let Some(room) = &mut self.live_kit {
-                        if let Ok(_) = speaker_ids.binary_search(&id) {
-                            room.speaking = true;
-                        } else {
-                            room.speaking = false;
-                        }
+                        room.speaking = speaker_ids.binary_search(&id).is_ok();
                     }
                 }
             }

crates/channel/src/channel_buffer.rs

@@ -177,14 +177,11 @@ impl ChannelBuffer {
         match event {
             language::Event::Operation(operation) => {
                 if *ZED_ALWAYS_ACTIVE {
-                    match operation {
-                        language::Operation::UpdateSelections { selections, .. } => {
+                    if let language::Operation::UpdateSelections { selections, .. } = operation {
                         if selections.is_empty() {
                             return;
                         }
                     }
-                        _ => {}
-                    }
                 }
                 let operation = language::proto::serialize_operation(operation);
                 self.client

crates/channel/src/channel_chat.rs

@@ -61,9 +61,9 @@ pub enum ChannelMessageId {
     Pending(usize),
 }
 
-impl Into<Option<u64>> for ChannelMessageId {
-    fn into(self) -> Option<u64> {
-        match self {
+impl From<ChannelMessageId> for Option<u64> {
+    fn from(val: ChannelMessageId) -> Self {
+        match val {
             ChannelMessageId::Saved(id) => Some(id),
             ChannelMessageId::Pending(_) => None,
         }

crates/channel/src/channel_store.rs

@@ -249,8 +249,8 @@ impl ChannelStore {
     }
 
     pub fn initialize(&mut self) {
-        if !self.did_subscribe {
-            if self
+        if !self.did_subscribe
+            && self
                 .client
                 .send(proto::SubscribeToChannels {})
                 .log_err()
@@ -259,7 +259,6 @@ impl ChannelStore {
             self.did_subscribe = true;
         }
     }
-    }
 
     pub fn client(&self) -> Arc<Client> {
         self.client.clone()
@@ -423,7 +422,7 @@ impl ChannelStore {
     ) {
         self.channel_states
             .entry(channel_id)
-            .or_insert_with(|| Default::default())
+            .or_default()
             .acknowledge_message_id(message_id);
         cx.notify();
     }
@@ -436,7 +435,7 @@ impl ChannelStore {
     ) {
         self.channel_states
             .entry(channel_id)
-            .or_insert_with(|| Default::default())
+            .or_default()
             .update_latest_message_id(message_id);
         cx.notify();
     }
@@ -450,7 +449,7 @@ impl ChannelStore {
     ) {
         self.channel_states
             .entry(channel_id)
-            .or_insert_with(|| Default::default())
+            .or_default()
             .acknowledge_notes_version(epoch, version);
         cx.notify()
     }
@@ -464,7 +463,7 @@ impl ChannelStore {
     ) {
         self.channel_states
             .entry(channel_id)
-            .or_insert_with(|| Default::default())
+            .or_default()
             .update_latest_notes_version(epoch, version);
         cx.notify()
     }
@@ -924,7 +923,7 @@ impl ChannelStore {
                 if let Some(role) = ChannelRole::from_i32(membership.role) {
                     this.channel_states
                         .entry(ChannelId(membership.channel_id))
-                        .or_insert_with(|| ChannelState::default())
+                        .or_default()
                         .set_role(role)
                 }
             }
@@ -1094,11 +1093,7 @@ impl ChannelStore {
                         id: ChannelId(channel.id),
                         visibility: channel.visibility(),
                         name: channel.name.into(),
-                        parent_path: channel
-                            .parent_path
-                            .into_iter()
-                            .map(|cid| ChannelId(cid))
-                            .collect(),
+                        parent_path: channel.parent_path.into_iter().map(ChannelId).collect(),
                     }),
                 ),
             }
@@ -1113,14 +1108,11 @@ impl ChannelStore {
 
         if channels_changed {
             if !payload.delete_channels.is_empty() {
-                let delete_channels: Vec<ChannelId> = payload
-                    .delete_channels
-                    .into_iter()
-                    .map(|cid| ChannelId(cid))
-                    .collect();
+                let delete_channels: Vec<ChannelId> =
+                    payload.delete_channels.into_iter().map(ChannelId).collect();
                 self.channel_index.delete_channels(&delete_channels);
                 self.channel_participants
-                    .retain(|channel_id, _| !delete_channels.contains(&channel_id));
+                    .retain(|channel_id, _| !delete_channels.contains(channel_id));
 
                 for channel_id in &delete_channels {
                     let channel_id = *channel_id;

crates/client/src/client.rs

@@ -117,7 +117,7 @@ impl Settings for ClientSettings {
     fn load(sources: SettingsSources<Self::FileContent>, _: &mut AppContext) -> Result<Self> {
         let mut result = sources.json_merge::<Self>()?;
         if let Some(server_url) = &*ZED_SERVER_URL {
-            result.server_url.clone_from(&server_url)
+            result.server_url.clone_from(server_url)
         }
         Ok(result)
     }
@@ -1141,7 +1141,7 @@ impl Client {
             request_headers.insert("x-zed-app-version", HeaderValue::from_str(&app_version)?);
             request_headers.insert(
                 "x-zed-release-channel",
-                HeaderValue::from_str(&release_channel.map(|r| r.dev_name()).unwrap_or("unknown"))?,
+                HeaderValue::from_str(release_channel.map(|r| r.dev_name()).unwrap_or("unknown"))?,
             );
 
             match url_scheme {
@@ -1344,16 +1344,14 @@ impl Client {
                 );
             }
 
-            let user = serde_json::from_slice::<GithubUser>(body.as_slice()).map_err(|err| {
+            serde_json::from_slice::<GithubUser>(body.as_slice()).map_err(|err| {
                 log::error!("Error deserializing: {:?}", err);
                 log::error!(
                     "GitHub API response text: {:?}",
                     String::from_utf8_lossy(body.as_slice())
                 );
                 anyhow!("error deserializing GitHub user")
-            })?;
-
-            user
+            })?
         };
 
         let query_params = [
@@ -1408,7 +1406,7 @@ impl Client {
 
     pub async fn sign_out(self: &Arc<Self>, cx: &AsyncAppContext) {
         self.state.write().credentials = None;
-        self.disconnect(&cx);
+        self.disconnect(cx);
 
         if self.has_credentials(cx).await {
             self.credentials_provider

crates/client/src/socks.rs

@@ -35,12 +35,8 @@ pub(crate) async fn connect_socks_proxy_stream(
 }
 
 fn parse_socks_proxy(proxy: Option<&Uri>) -> Option<((String, u16), SocksVersion)> {
-    let Some(proxy_uri) = proxy else {
-        return None;
-    };
-    let Some(scheme) = proxy_uri.scheme_str() else {
-        return None;
-    };
+    let proxy_uri = proxy?;
+    let scheme = proxy_uri.scheme_str()?;
     let socks_version = if scheme.starts_with("socks4") {
         // socks4
         SocksVersion::V4

crates/client/src/telemetry.rs

@@ -670,6 +670,24 @@ impl Telemetry {
     }
 }
 
+pub fn calculate_json_checksum(json: &impl AsRef<[u8]>) -> Option<String> {
+    let Some(checksum_seed) = &*ZED_CLIENT_CHECKSUM_SEED else {
+        return None;
+    };
+
+    let mut summer = Sha256::new();
+    summer.update(checksum_seed);
+    summer.update(json);
+    summer.update(checksum_seed);
+    let mut checksum = String::new();
+    for byte in summer.finalize().as_slice() {
+        use std::fmt::Write;
+        write!(&mut checksum, "{:02x}", byte).unwrap();
+    }
+
+    Some(checksum)
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;
@@ -828,21 +846,3 @@ mod tests {
             && telemetry.state.lock().first_event_date_time.is_none()
     }
 }
-
-pub fn calculate_json_checksum(json: &impl AsRef<[u8]>) -> Option<String> {
-    let Some(checksum_seed) = &*ZED_CLIENT_CHECKSUM_SEED else {
-        return None;
-    };
-
-    let mut summer = Sha256::new();
-    summer.update(checksum_seed);
-    summer.update(&json);
-    summer.update(checksum_seed);
-    let mut checksum = String::new();
-    for byte in summer.finalize().as_slice() {
-        use std::fmt::Write;
-        write!(&mut checksum, "{:02x}", byte).unwrap();
-    }
-
-    Some(checksum)
-}

crates/client/src/user.rs

@@ -200,7 +200,7 @@ impl UserStore {
                                 cx.update(|cx| {
                                     if let Some(info) = info {
                                         let disable_staff = std::env::var("ZED_DISABLE_STAFF")
-                                            .map_or(false, |v| v != "" && v != "0");
+                                            .map_or(false, |v| !v.is_empty() && v != "0");
                                         let staff = info.staff && !disable_staff;
                                         cx.update_flags(staff, info.flags);
                                         client.telemetry.set_authenticated_user_info(

crates/collab/src/api.rs

@@ -137,7 +137,7 @@ async fn get_authenticated_user(
         )
         .await?;
     let metrics_id = app.db.get_user_metrics_id(user.id).await?;
-    return Ok(Json(AuthenticatedUserResponse { user, metrics_id }));
+    Ok(Json(AuthenticatedUserResponse { user, metrics_id }))
 }
 
 #[derive(Deserialize, Debug)]

crates/collab/src/api/billing.rs

@@ -600,7 +600,7 @@ async fn find_or_create_billing_customer(
     // there's nothing more we need to do.
     if let Some(billing_customer) = app
         .db
-        .get_billing_customer_by_stripe_customer_id(&customer_id)
+        .get_billing_customer_by_stripe_customer_id(customer_id)
         .await?
     {
         return Ok(Some(billing_customer));
@@ -609,7 +609,7 @@ async fn find_or_create_billing_customer(
     // If all we have is a customer ID, resolve it to a full customer record by
     // hitting the Stripe API.
     let customer = match customer_or_id {
-        Expandable::Id(id) => Customer::retrieve(&stripe_client, &id, &[]).await?,
+        Expandable::Id(id) => Customer::retrieve(stripe_client, &id, &[]).await?,
         Expandable::Object(customer) => *customer,
     };
 

crates/collab/src/api/events.rs

@@ -397,7 +397,7 @@ pub async fn post_events(
         match &wrapper.event {
             Event::Editor(event) => to_upload.editor_events.push(EditorEventRow::from_event(
                 event.clone(),
-                &wrapper,
+                wrapper,
                 &request_body,
                 first_event_at,
                 country_code.clone(),
@@ -410,7 +410,7 @@ pub async fn post_events(
                     .inline_completion_events
                     .push(InlineCompletionEventRow::from_event(
                         event.clone(),
-                        &wrapper,
+                        wrapper,
                         &request_body,
                         first_event_at,
                         country_code.clone(),
@@ -419,7 +419,7 @@ pub async fn post_events(
             }
             Event::Call(event) => to_upload.call_events.push(CallEventRow::from_event(
                 event.clone(),
-                &wrapper,
+                wrapper,
                 &request_body,
                 first_event_at,
                 checksum_matched,
@@ -429,7 +429,7 @@ pub async fn post_events(
                     .assistant_events
                     .push(AssistantEventRow::from_event(
                         event.clone(),
-                        &wrapper,
+                        wrapper,
                         &request_body,
                         first_event_at,
                         checksum_matched,
@@ -437,42 +437,42 @@ pub async fn post_events(
             }
             Event::Cpu(event) => to_upload.cpu_events.push(CpuEventRow::from_event(
                 event.clone(),
-                &wrapper,
+                wrapper,
                 &request_body,
                 first_event_at,
                 checksum_matched,
             )),
             Event::Memory(event) => to_upload.memory_events.push(MemoryEventRow::from_event(
                 event.clone(),
-                &wrapper,
+                wrapper,
                 &request_body,
                 first_event_at,
                 checksum_matched,
             )),
             Event::App(event) => to_upload.app_events.push(AppEventRow::from_event(
                 event.clone(),
-                &wrapper,
+                wrapper,
                 &request_body,
                 first_event_at,
                 checksum_matched,
             )),
             Event::Setting(event) => to_upload.setting_events.push(SettingEventRow::from_event(
                 event.clone(),
-                &wrapper,
+                wrapper,
                 &request_body,
                 first_event_at,
                 checksum_matched,
             )),
             Event::Edit(event) => to_upload.edit_events.push(EditEventRow::from_event(
                 event.clone(),
-                &wrapper,
+                wrapper,
                 &request_body,
                 first_event_at,
                 checksum_matched,
             )),
             Event::Action(event) => to_upload.action_events.push(ActionEventRow::from_event(
                 event.clone(),
-                &wrapper,
+                wrapper,
                 &request_body,
                 first_event_at,
                 checksum_matched,
@@ -486,7 +486,7 @@ pub async fn post_events(
                     .extension_events
                     .push(ExtensionEventRow::from_event(
                         event.clone(),
-                        &wrapper,
+                        wrapper,
                         &request_body,
                         metadata,
                         first_event_at,
@@ -495,7 +495,7 @@ pub async fn post_events(
             }
             Event::Repl(event) => to_upload.repl_events.push(ReplEventRow::from_event(
                 event.clone(),
-                &wrapper,
+                wrapper,
                 &request_body,
                 first_event_at,
                 checksum_matched,
@@ -1332,7 +1332,7 @@ pub fn calculate_json_checksum(app: Arc<AppState>, json: &impl AsRef<[u8]>) -> O
 
     let mut summer = Sha256::new();
     summer.update(checksum_seed);
-    summer.update(&json);
+    summer.update(json);
     summer.update(checksum_seed);
     Some(summer.finalize().into_iter().collect())
 }

crates/collab/src/api/extensions.rs

@@ -319,14 +319,14 @@ async fn fetch_extensions_from_blob_store(
                 if let Some(extension) = fetch_extension_manifest(
                     blob_store_client,
                     blob_store_bucket,
-                    &extension_id,
-                    &published_version,
+                    extension_id,
+                    published_version,
                 )
                 .await
                 .log_err()
                 {
                     new_versions
-                        .entry(&extension_id)
+                        .entry(extension_id)
                         .or_default()
                         .push(extension);
                 }

crates/collab/src/auth.rs

@@ -85,7 +85,7 @@ pub async fn validate_header<B>(mut req: Request<B>, next: Next<B>) -> impl Into
             impersonator_id: None,
         })
     } else {
-        verify_access_token(&access_token, user_id, &state.db).await
+        verify_access_token(access_token, user_id, &state.db).await
     };
 
     if let Ok(validate_result) = validate_result {
@@ -202,7 +202,7 @@ pub async fn verify_access_token(
         .unwrap()
     });
 
-    let token: AccessTokenJson = serde_json::from_str(&token)?;
+    let token: AccessTokenJson = serde_json::from_str(token)?;
 
     let db_token = db.get_access_token(token.id).await?;
     let token_user_id = db_token.impersonated_user_id.unwrap_or(db_token.user_id);
@@ -249,7 +249,7 @@ pub async fn verify_dev_server_token(
     db: &Arc<Database>,
 ) -> anyhow::Result<dev_server::Model> {
     let (id, token) = split_dev_server_token(dev_server_token)?;
-    let token_hash = hash_access_token(&token);
+    let token_hash = hash_access_token(token);
     let server = db.get_dev_server(id).await?;
 
     if server
@@ -301,18 +301,16 @@ mod test {
             .await
             .unwrap();
 
-        let token = create_access_token(&db, user.user_id, None).await.unwrap();
+        let token = create_access_token(db, user.user_id, None).await.unwrap();
         assert!(matches!(
-            verify_access_token(&token, user.user_id, &db)
-                .await
-                .unwrap(),
+            verify_access_token(&token, user.user_id, db).await.unwrap(),
             VerifyAccessTokenResult {
                 is_valid: true,
                 impersonator_id: None,
             }
         ));
 
-        let old_token = create_previous_access_token(user.user_id, None, &db)
+        let old_token = create_previous_access_token(user.user_id, None, db)
             .await
             .unwrap();
 
@@ -333,7 +331,7 @@ mod test {
         assert!(hash.starts_with("$scrypt$"));
 
         assert!(matches!(
-            verify_access_token(&old_token, user.user_id, &db)
+            verify_access_token(&old_token, user.user_id, db)
                 .await
                 .unwrap(),
             VerifyAccessTokenResult {
@@ -355,7 +353,7 @@ mod test {
         assert!(hash.starts_with("$sha256$"));
 
         assert!(matches!(
-            verify_access_token(&old_token, user.user_id, &db)
+            verify_access_token(&old_token, user.user_id, db)
                 .await
                 .unwrap(),
             VerifyAccessTokenResult {
@@ -365,9 +363,7 @@ mod test {
         ));
 
         assert!(matches!(
-            verify_access_token(&token, user.user_id, &db)
-                .await
-                .unwrap(),
+            verify_access_token(&token, user.user_id, db).await.unwrap(),
             VerifyAccessTokenResult {
                 is_valid: true,
                 impersonator_id: None,

crates/collab/src/db.rs

@@ -139,14 +139,12 @@ impl Database {
             let (tx, result) = self.with_weak_transaction(&f).await?;
             match result {
                 Ok(result) => match tx.commit().await.map_err(Into::into) {
-                    Ok(()) => return Ok(result),
-                    Err(error) => {
-                        return Err(error);
-                    }
+                    Ok(()) => Ok(result),
+                    Err(error) => Err(error),
                 },
                 Err(error) => {
                     tx.rollback().await?;
-                    return Err(error);
+                    Err(error)
                 }
             }
         };
@@ -217,7 +215,7 @@ impl Database {
         F: Send + Fn(TransactionHandle) -> Fut,
         Fut: Send + Future<Output = Result<T>>,
     {
-        let room_id = Database::room_id_for_project(&self, project_id).await?;
+        let room_id = Database::room_id_for_project(self, project_id).await?;
         let body = async {
             let mut i = 0;
             loop {

crates/collab/src/db/ids.rs

@@ -218,9 +218,9 @@ impl From<proto::ChannelRole> for ChannelRole {
     }
 }
 
-impl Into<proto::ChannelRole> for ChannelRole {
-    fn into(self) -> proto::ChannelRole {
-        match self {
+impl From<ChannelRole> for proto::ChannelRole {
+    fn from(val: ChannelRole) -> Self {
+        match val {
             ChannelRole::Admin => proto::ChannelRole::Admin,
             ChannelRole::Member => proto::ChannelRole::Member,
             ChannelRole::Talker => proto::ChannelRole::Talker,
@@ -230,9 +230,9 @@ impl Into<proto::ChannelRole> for ChannelRole {
     }
 }
 
-impl Into<i32> for ChannelRole {
-    fn into(self) -> i32 {
-        let proto: proto::ChannelRole = self.into();
+impl From<ChannelRole> for i32 {
+    fn from(val: ChannelRole) -> Self {
+        let proto: proto::ChannelRole = val.into();
         proto.into()
     }
 }
@@ -259,18 +259,18 @@ impl From<proto::ChannelVisibility> for ChannelVisibility {
     }
 }
 
-impl Into<proto::ChannelVisibility> for ChannelVisibility {
-    fn into(self) -> proto::ChannelVisibility {
-        match self {
+impl From<ChannelVisibility> for proto::ChannelVisibility {
+    fn from(val: ChannelVisibility) -> Self {
+        match val {
             ChannelVisibility::Public => proto::ChannelVisibility::Public,
             ChannelVisibility::Members => proto::ChannelVisibility::Members,
         }
     }
 }
 
-impl Into<i32> for ChannelVisibility {
-    fn into(self) -> i32 {
-        let proto: proto::ChannelVisibility = self.into();
+impl From<ChannelVisibility> for i32 {
+    fn from(val: ChannelVisibility) -> Self {
+        let proto: proto::ChannelVisibility = val.into();
         proto.into()
     }
 }

crates/collab/src/db/queries/buffers.rs

@@ -391,7 +391,7 @@ impl Database {
         drop(rows);
 
         if collaborators.is_empty() {
-            self.snapshot_channel_buffer(channel_id, &tx).await?;
+            self.snapshot_channel_buffer(channel_id, tx).await?;
         }
 
         Ok(LeftChannelBuffer {

crates/collab/src/db/queries/channels.rs

@@ -188,8 +188,8 @@ impl Database {
                             .anyhow())?;
                     }
                 }
-            } else if visibility == ChannelVisibility::Members {
-                if self
+            } else if visibility == ChannelVisibility::Members
+                && self
                     .get_channel_descendants_excluding_self([&channel], &tx)
                     .await?
                     .into_iter()
@@ -199,7 +199,6 @@ impl Database {
                     .with_tag("direction", "children")
                     .anyhow())?;
             }
-            }
 
             let mut model = channel.into_active_model();
             model.visibility = ActiveValue::Set(visibility);
@@ -308,7 +307,7 @@ impl Database {
 
     fn sanitize_channel_name(name: &str) -> Result<&str> {
         let new_name = name.trim().trim_start_matches('#');
-        if new_name == "" {
+        if new_name.is_empty() {
             Err(anyhow!("channel name can't be blank"))?;
         }
         Ok(new_name)
@@ -985,7 +984,7 @@ impl Database {
                 .all(&*tx)
                 .await?
                 .into_iter()
-                .map(|c| Channel::from_model(c))
+                .map(Channel::from_model)
                 .collect::<Vec<_>>();
 
             Ok((root_id, channels))

crates/collab/src/db/queries/notifications.rs

@@ -86,15 +86,14 @@ impl Database {
         avoid_duplicates: bool,
         tx: &DatabaseTransaction,
     ) -> Result<Option<(UserId, proto::Notification)>> {
-        if avoid_duplicates {
-            if self
+        if avoid_duplicates
+            && self
                 .find_notification(recipient_id, &notification, tx)
                 .await?
                 .is_some()
         {
             return Ok(None);
         }
-        }
 
         let proto = notification.to_proto();
         let kind = notification_kind_from_proto(self, &proto)?;

crates/collab/src/db/queries/rooms.rs

@@ -459,7 +459,7 @@ impl Database {
             .await?;
         }
 
-        let (channel, room) = self.get_channel_room(room_id, &tx).await?;
+        let (channel, room) = self.get_channel_room(room_id, tx).await?;
         let channel = channel.ok_or_else(|| anyhow!("no channel for room"))?;
         Ok(JoinRoom {
             room,
@@ -766,13 +766,13 @@ impl Database {
             })
             .collect::<Vec<_>>();
 
-        return Ok(Some(RejoinedProject {
+        Ok(Some(RejoinedProject {
             id: project_id,
             old_connection_id,
             collaborators,
             worktrees,
             language_servers,
-        }));
+        }))
     }
 
     pub async fn leave_room(
@@ -1108,8 +1108,8 @@ impl Database {
                     .count(tx)
                     .await?
                     > 0;
-            if requires_zed_cla {
-                if contributor::Entity::find()
+            if requires_zed_cla
+                && contributor::Entity::find()
                     .filter(contributor::Column::UserId.eq(user_id))
                     .one(tx)
                     .await?
@@ -1118,7 +1118,6 @@ impl Database {
                 Err(anyhow!("user has not signed the Zed CLA"))?;
             }
         }
-        }
         Ok(())
     }
 

crates/collab/src/db/tables/dev_server_project.rs

@@ -48,7 +48,7 @@ impl Model {
             id: self.id.to_proto(),
             project_id: project.map(|p| p.id.to_proto()),
             dev_server_id: self.dev_server_id.to_proto(),
-            path: self.paths().get(0).cloned().unwrap_or_default(),
+            path: self.paths().first().cloned().unwrap_or_default(),
             paths: self.paths().clone(),
         }
     }

crates/collab/src/db/tests/processed_stripe_event_tests.rs

@@ -22,19 +22,17 @@ async fn test_already_processed_stripe_event(db: &Arc<Database>) {
     .await
     .unwrap();
 
-    assert_eq!(
+    assert!(
         db.already_processed_stripe_event(&processed_event_id)
             .await
             .unwrap(),
-        true,
         "Expected {processed_event_id} to already be processed"
     );
 
-    assert_eq!(
-        db.already_processed_stripe_event(&unprocessed_event_id)
+    assert!(
+        !db.already_processed_stripe_event(&unprocessed_event_id)
             .await
             .unwrap(),
-        false,
         "Expected {unprocessed_event_id} to be unprocessed"
     );
 }

crates/collab/src/lib.rs

@@ -304,10 +304,7 @@ impl AppState {
             db: db.clone(),
             live_kit_client,
             blob_store_client: build_blob_store_client(&config).await.log_err(),
-            stripe_client: build_stripe_client(&config)
-                .await
-                .map(|client| Arc::new(client))
-                .log_err(),
+            stripe_client: build_stripe_client(&config).await.map(Arc::new).log_err(),
             rate_limiter: Arc::new(RateLimiter::new(db)),
             executor,
             clickhouse_client: config

crates/collab/src/llm.rs

@@ -141,7 +141,7 @@ async fn validate_api_token<B>(mut req: Request<B>, next: Next<B>) -> impl IntoR
         })?;
 
     let state = req.extensions().get::<Arc<LlmState>>().unwrap();
-    match LlmTokenClaims::validate(&token, &state.config) {
+    match LlmTokenClaims::validate(token, &state.config) {
         Ok(claims) => {
             if state.db.is_access_token_revoked(&claims.jti).await? {
                 return Err(Error::http(
@@ -154,7 +154,7 @@ async fn validate_api_token<B>(mut req: Request<B>, next: Next<B>) -> impl IntoR
                 .record("user_id", claims.user_id)
                 .record("login", claims.github_user_login.clone())
                 .record("authn.jti", &claims.jti)
-                .record("is_staff", &claims.is_staff);
+                .record("is_staff", claims.is_staff);
 
             req.extensions_mut().insert(claims);
             Ok::<_, Error>(next.run(req).await.into_response())
@@ -247,7 +247,7 @@ async fn perform_completion(
             };
 
             let mut request: anthropic::Request =
-                serde_json::from_str(&params.provider_request.get())?;
+                serde_json::from_str(params.provider_request.get())?;
 
             // Override the model on the request with the latest version of the model that is
             // known to the server.
@@ -348,7 +348,7 @@ async fn perform_completion(
                 &state.http_client,
                 open_ai::OPEN_AI_API_URL,
                 api_key,
-                serde_json::from_str(&params.provider_request.get())?,
+                serde_json::from_str(params.provider_request.get())?,
                 None,
             )
             .await?;
@@ -379,7 +379,7 @@ async fn perform_completion(
                 &state.http_client,
                 google_ai::API_URL,
                 api_key,
-                serde_json::from_str(&params.provider_request.get())?,
+                serde_json::from_str(params.provider_request.get())?,
                 None,
             )
             .await?;
@@ -412,9 +412,9 @@ async fn perform_completion(
                 .context("no Qwen2-7B URL configured on the server")?;
             let chunks = open_ai::stream_completion(
                 &state.http_client,
-                &api_url,
+                api_url,
                 api_key,
-                serde_json::from_str(&params.provider_request.get())?,
+                serde_json::from_str(params.provider_request.get())?,
                 None,
             )
             .await?;

crates/collab/src/llm/authorization.rs

@@ -26,8 +26,7 @@ fn authorize_access_to_model(
         return Ok(());
     }
 
-    match provider {
-        LanguageModelProvider::Anthropic => {
+    if provider == LanguageModelProvider::Anthropic {
         if model == "claude-3-5-sonnet" {
             return Ok(());
         }
@@ -38,8 +37,6 @@ fn authorize_access_to_model(
             return Ok(());
         }
     }
-        _ => {}
-    }
 
     Err(Error::http(
         StatusCode::FORBIDDEN,

crates/collab/src/llm/db.rs

@@ -110,14 +110,12 @@ impl LlmDatabase {
             let (tx, result) = self.with_transaction(&f).await?;
             match result {
                 Ok(result) => match tx.commit().await.map_err(Into::into) {
-                    Ok(()) => return Ok(result),
-                    Err(error) => {
-                        return Err(error);
-                    }
+                    Ok(()) => Ok(result),
+                    Err(error) => Err(error),
                 },
                 Err(error) => {
                     tx.rollback().await?;
-                    return Err(error);
+                    Err(error)
                 }
             }
         };

crates/collab/src/llm/db/queries/providers.rs

@@ -82,7 +82,7 @@ impl LlmDatabase {
     pub async fn insert_models(&mut self, models: &[ModelParams]) -> Result<()> {
         let all_provider_ids = &self.provider_ids;
         self.transaction(|tx| async move {
-            model::Entity::insert_many(models.into_iter().map(|model_params| {
+            model::Entity::insert_many(models.iter().map(|model_params| {
                 let provider_id = all_provider_ids[&model_params.provider];
                 model::ActiveModel {
                     provider_id: ActiveValue::set(provider_id),

crates/collab/src/main.rs

@@ -257,7 +257,7 @@ async fn setup_app_database(config: &Config) -> Result<()> {
     db.initialize_notification_kinds().await?;
 
     if config.seed_path.is_some() {
-        collab::seed::seed(&config, &db, false).await?;
+        collab::seed::seed(config, &db, false).await?;
     }
 
     Ok(())

crates/collab/src/rate_limiter.rs

@@ -100,7 +100,7 @@ impl RateLimiter {
     pub async fn save(&self) -> Result<()> {
         let mut buckets = Vec::new();
         self.dirty_buckets.retain(|key| {
-            if let Some(bucket) = self.buckets.get(&key) {
+            if let Some(bucket) = self.buckets.get(key) {
                 buckets.push(crate::db::rate_buckets::Model {
                     user_id: key.0,
                     rate_limit_name: key.1.clone(),

crates/collab/src/rpc.rs

@@ -115,16 +115,16 @@ impl Principal {
     fn update_span(&self, span: &tracing::Span) {
         match &self {
             Principal::User(user) => {
-                span.record("user_id", &user.id.0);
+                span.record("user_id", user.id.0);
                 span.record("login", &user.github_login);
             }
             Principal::Impersonated { user, admin } => {
-                span.record("user_id", &user.id.0);
+                span.record("user_id", user.id.0);
                 span.record("login", &user.github_login);
                 span.record("impersonator", &admin.github_login);
             }
             Principal::DevServer(dev_server) => {
-                span.record("dev_server_id", &dev_server.id.0);
+                span.record("dev_server_id", dev_server.id.0);
             }
         }
     }
@@ -964,14 +964,10 @@ impl Server {
                 }
             };
 
-            let supermaven_client = if let Some(supermaven_admin_api_key) = this.app_state.config.supermaven_admin_api_key.clone() {
-                Some(Arc::new(SupermavenAdminApi::new(
+            let supermaven_client = this.app_state.config.supermaven_admin_api_key.clone().map(|supermaven_admin_api_key| Arc::new(SupermavenAdminApi::new(
                     supermaven_admin_api_key.to_string(),
                     http_client.clone(),
-                )))
-            } else {
-                None
-            };
+                )));
 
             let session = Session {
                 principal: principal.clone(),
@@ -1126,7 +1122,7 @@ impl Server {
                     self.peer.send(connection_id, incoming_call)?;
                 }
 
-                update_user_contacts(user.id, &session).await?;
+                update_user_contacts(user.id, session).await?;
             }
             Principal::DevServer(dev_server) => {
                 {
@@ -1159,7 +1155,7 @@ impl Server {
                     .db
                     .dev_server_projects_update(dev_server.user_id)
                     .await?;
-                send_dev_server_projects_update(dev_server.user_id, status, &session).await;
+                send_dev_server_projects_update(dev_server.user_id, status, session).await;
             }
         }
 
@@ -1564,23 +1560,19 @@ async fn join_room(
 
     let live_kit_connection_info =
         if let Some(live_kit) = session.app_state.live_kit_client.as_ref() {
-            if let Some(token) = live_kit
+            live_kit
                 .room_token(
                     &joined_room.room.live_kit_room,
                     &session.user_id().to_string(),
                 )
                 .trace_err()
-            {
-                Some(proto::LiveKitConnectionInfo {
+                .map(|token| proto::LiveKitConnectionInfo {
                     server_url: live_kit.url().into(),
                     token,
                     can_publish: true,
                 })
         } else {
             None
-            }
-        } else {
-            None
         };
 
     response.send(proto::JoinRoomResponse {
@@ -1863,7 +1855,7 @@ async fn call(
                 initial_project_id,
             )
             .await?;
-        room_updated(&room, &session.peer);
+        room_updated(room, &session.peer);
         mem::take(incoming_call)
     };
     update_user_contacts(called_user_id, &session).await?;
@@ -2006,13 +1998,13 @@ async fn share_project(
             &request.worktrees,
             request
                 .dev_server_project_id
-                .map(|id| DevServerProjectId::from_proto(id)),
+                .map(DevServerProjectId::from_proto),
         )
         .await?;
     response.send(proto::ShareProjectResponse {
         project_id: project_id.to_proto(),
     })?;
-    room_updated(&room, &session.peer);
+    room_updated(room, &session.peer);
 
     Ok(())
 }
@@ -2269,9 +2261,9 @@ async fn leave_project(request: proto::LeaveProject, session: UserSession) -> Re
         "leave project"
     );
 
-    project_left(&project, &session);
+    project_left(project, &session);
     if let Some(room) = room {
-        room_updated(&room, &session.peer);
+        room_updated(room, &session.peer);
     }
 
     Ok(())
@@ -2753,7 +2745,7 @@ async fn shutdown_dev_server_internal(
         .await
         .dev_server_projects_update(dev_server.user_id)
         .await?;
-    send_dev_server_projects_update(dev_server.user_id, status, &session).await;
+    send_dev_server_projects_update(dev_server.user_id, status, session).await;
 
     Ok(())
 }
@@ -2795,7 +2787,7 @@ async fn update_project(
         },
     );
     if let Some(room) = room {
-        room_updated(&room, &session.peer);
+        room_updated(room, &session.peer);
     }
     response.send(proto::Ack {})?;
 
@@ -3562,7 +3554,7 @@ async fn create_channel(
 ) -> Result<()> {
     let db = session.db().await;
 
-    let parent_id = request.parent_id.map(|id| ChannelId::from_proto(id));
+    let parent_id = request.parent_id.map(ChannelId::from_proto);
     let (channel, membership) = db
         .create_channel(&request.name, parent_id, session.user_id())
         .await?;
@@ -4284,10 +4276,7 @@ async fn send_channel_message(
             &request.mentions,
             timestamp,
             nonce.clone().into(),
-            match request.reply_to_message_id {
-                Some(reply_to_message_id) => Some(MessageId::from_proto(reply_to_message_id)),
-                None => None,
-            },
+            request.reply_to_message_id.map(MessageId::from_proto),
         )
         .await?;
 
@@ -4848,9 +4837,7 @@ async fn get_notifications(
         .get_notifications(
             session.user_id(),
             NOTIFICATION_COUNT_PER_PAGE,
-            request
-                .before_id
-                .map(|id| db::NotificationId::from_proto(id)),
+            request.before_id.map(db::NotificationId::from_proto),
         )
         .await?;
     response.send(proto::GetNotificationsResponse {
@@ -5104,7 +5091,7 @@ fn build_initial_contacts_update(
     for contact in contacts {
         match contact {
             db::Contact::Accepted { user_id, busy } => {
-                update.contacts.push(contact_for_user(user_id, busy, &pool));
+                update.contacts.push(contact_for_user(user_id, busy, pool));
             }
             db::Contact::Outgoing { user_id } => update.outgoing_requests.push(user_id.to_proto()),
             db::Contact::Incoming { user_id } => {
@@ -5161,7 +5148,8 @@ fn channel_updated(
         None,
         pool.channel_connection_ids(channel.root_id())
             .filter_map(|(channel_id, role)| {
-                role.can_see_channel(channel.visibility).then(|| channel_id)
+                role.can_see_channel(channel.visibility)
+                    .then_some(channel_id)
             }),
         |peer_id| {
             peer.send(
@@ -5239,7 +5227,7 @@ async fn lost_dev_server_connection(session: &DevServerSession) -> Result<()> {
 
     for project_id in project_ids {
         // not unshare re-checks the connection ids match, so we get away with no transaction
-        unshare_project_internal(project_id, session.connection_id, None, &session).await?;
+        unshare_project_internal(project_id, session.connection_id, None, session).await?;
     }
 
     let user_id = session.dev_server().user_id;
@@ -5311,7 +5299,7 @@ async fn leave_room_for_session(session: &UserSession, connection_id: Connection
     }
 
     for contact_user_id in contacts_to_update {
-        update_user_contacts(contact_user_id, &session).await?;
+        update_user_contacts(contact_user_id, session).await?;
     }
 
     if let Some(live_kit) = session.app_state.live_kit_client.as_ref() {

crates/collab/src/rpc/connection_pool.rs

@@ -236,7 +236,7 @@ impl ConnectionPool {
                 }
                 PrincipalId::DevServerId(dev_server_id) => {
                     assert_eq!(
-                        self.connected_dev_servers.get(&dev_server_id).unwrap(),
+                        self.connected_dev_servers.get(dev_server_id).unwrap(),
                         connection_id
                     );
                 }
@@ -300,9 +300,9 @@ impl ChannelPool {
     }
 
     pub fn remove_user(&mut self, user_id: &UserId) {
-        if let Some(channels) = self.by_user.remove(&user_id) {
+        if let Some(channels) = self.by_user.remove(user_id) {
             for channel_id in channels.keys() {
-                self.unsubscribe(user_id, &channel_id)
+                self.unsubscribe(user_id, channel_id)
             }
         }
     }

crates/collab/src/tests/channel_buffer_tests.rs

@@ -85,7 +85,7 @@ async fn test_core_channel_buffers(
 
     // Client B sees that client A is gone from the channel buffer.
     channel_buffer_b.read_with(cx_b, |buffer, _| {
-        assert_collaborators(&buffer.collaborators(), &[client_b.user_id()]);
+        assert_collaborators(buffer.collaborators(), &[client_b.user_id()]);
     });
 
     // Client A rejoins the channel buffer
@@ -99,7 +99,7 @@ async fn test_core_channel_buffers(
     // Sanity test, make sure we saw A rejoining
     channel_buffer_b.read_with(cx_b, |buffer, _| {
         assert_collaborators(
-            &buffer.collaborators(),
+            buffer.collaborators(),
             &[client_a.user_id(), client_b.user_id()],
         );
     });
@@ -111,7 +111,7 @@ async fn test_core_channel_buffers(
 
     // Client B observes A disconnect
     channel_buffer_b.read_with(cx_b, |buffer, _| {
-        assert_collaborators(&buffer.collaborators(), &[client_b.user_id()]);
+        assert_collaborators(buffer.collaborators(), &[client_b.user_id()]);
     });
 
     // TODO:
@@ -687,7 +687,7 @@ fn assert_collaborators(collaborators: &HashMap<PeerId, Collaborator>, ids: &[Op
     user_ids.sort();
     assert_eq!(
         user_ids,
-        ids.into_iter().map(|id| id.unwrap()).collect::<Vec<_>>()
+        ids.iter().map(|id| id.unwrap()).collect::<Vec<_>>()
     );
 }
 

crates/collab/src/tests/channel_message_tests.rs

@@ -356,7 +356,7 @@ async fn test_channel_message_changes(
     let project_b = client_b.build_empty_local_project(cx_b);
     let (workspace_b, cx_b) = client_b.build_workspace(&project_b, cx_b);
 
-    let chat_panel_b = workspace_b.update(cx_b, |workspace, cx| ChatPanel::new(workspace, cx));
+    let chat_panel_b = workspace_b.update(cx_b, ChatPanel::new);
     chat_panel_b
         .update(cx_b, |chat_panel, cx| {
             chat_panel.set_active(true, cx);

crates/collab/src/tests/dev_server_tests.rs

@@ -96,7 +96,7 @@ async fn test_dev_server(cx: &mut gpui::TestAppContext, cx2: &mut gpui::TestAppC
 
     let content = dev_server
         .fs()
-        .load(&Path::new("/remote/1.txt"))
+        .load(Path::new("/remote/1.txt"))
         .await
         .unwrap();
     assert_eq!(content, "wow!remote\nremote\nremote\n");
@@ -599,7 +599,7 @@ async fn test_save_as_remote(cx1: &mut gpui::TestAppContext, cx2: &mut gpui::Tes
     let title = remote_workspace
         .update(&mut cx, |ws, cx| {
             let active_item = ws.active_item(cx).unwrap();
-            active_item.tab_description(0, &cx).unwrap()
+            active_item.tab_description(0, cx).unwrap()
         })
         .unwrap();
 
@@ -607,7 +607,7 @@ async fn test_save_as_remote(cx1: &mut gpui::TestAppContext, cx2: &mut gpui::Tes
 
     let path = Path::new("/remote/2.txt");
     assert_eq!(
-        dev_server.fs().load(&path).await.unwrap(),
+        dev_server.fs().load(path).await.unwrap(),
         "remote\nremote\nremote"
     );
 }
@@ -632,12 +632,12 @@ async fn test_new_file_remote(cx1: &mut gpui::TestAppContext, cx2: &mut gpui::Te
 
     let title = remote_workspace
         .update(&mut cx, |ws, cx| {
-            ws.active_item(cx).unwrap().tab_description(0, &cx).unwrap()
+            ws.active_item(cx).unwrap().tab_description(0, cx).unwrap()
         })
         .unwrap();
 
     assert_eq!(title, "2.txt");
 
     let path = Path::new("/remote/2.txt");
-    assert_eq!(dev_server.fs().load(&path).await.unwrap(), "new!");
+    assert_eq!(dev_server.fs().load(path).await.unwrap(), "new!");
 }

crates/collab/src/tests/editor_tests.rs

@@ -2109,7 +2109,7 @@ struct Row10;"#};
     editor_cx_a.update_editor(|editor, cx| {
         let snapshot = editor.snapshot(cx);
         let all_hunks = editor_hunks(editor, &snapshot, cx);
-        let all_expanded_hunks = expanded_hunks(&editor, &snapshot, cx);
+        let all_expanded_hunks = expanded_hunks(editor, &snapshot, cx);
         assert_eq!(expanded_hunks_background_highlights(editor, cx), Vec::new());
         assert_eq!(
             all_hunks,
@@ -2146,7 +2146,7 @@ struct Row10;"#};
     editor_cx_b.update_editor(|editor, cx| {
         let snapshot = editor.snapshot(cx);
         let all_hunks = editor_hunks(editor, &snapshot, cx);
-        let all_expanded_hunks = expanded_hunks(&editor, &snapshot, cx);
+        let all_expanded_hunks = expanded_hunks(editor, &snapshot, cx);
         assert_eq!(
             expanded_hunks_background_highlights(editor, cx),
             vec![DisplayRow(1)..=DisplayRow(2), DisplayRow(8)..=DisplayRow(8)],
@@ -2194,7 +2194,7 @@ struct Row10;"#};
     editor_cx_a.update_editor(|editor, cx| {
         let snapshot = editor.snapshot(cx);
         let all_hunks = editor_hunks(editor, &snapshot, cx);
-        let all_expanded_hunks = expanded_hunks(&editor, &snapshot, cx);
+        let all_expanded_hunks = expanded_hunks(editor, &snapshot, cx);
         assert_eq!(expanded_hunks_background_highlights(editor, cx), Vec::new());
         assert_eq!(
             all_hunks,
@@ -2209,7 +2209,7 @@ struct Row10;"#};
     editor_cx_b.update_editor(|editor, cx| {
         let snapshot = editor.snapshot(cx);
         let all_hunks = editor_hunks(editor, &snapshot, cx);
-        let all_expanded_hunks = expanded_hunks(&editor, &snapshot, cx);
+        let all_expanded_hunks = expanded_hunks(editor, &snapshot, cx);
         assert_eq!(
             expanded_hunks_background_highlights(editor, cx),
             vec![DisplayRow(5)..=DisplayRow(5)]

crates/collab/src/tests/following_tests.rs

@@ -506,7 +506,7 @@ async fn test_basic_following(
 
     // Client B activates an item that doesn't implement following,
     // so the previously-opened screen-sharing item gets activated.
-    let unfollowable_item = cx_b.new_view(|cx| TestItem::new(cx));
+    let unfollowable_item = cx_b.new_view(TestItem::new);
     workspace_b.update(cx_b, |workspace, cx| {
         workspace.active_pane().update(cx, |pane, cx| {
             pane.add_item(Box::new(unfollowable_item), true, true, None, cx)

crates/collab/src/tests/integration_tests.rs

@@ -538,10 +538,7 @@ async fn test_joining_channels_and_calling_multiple_users_simultaneously(
 
     // Leave the room
     active_call_a
-        .update(cx_a, |call, cx| {
-            let hang_up = call.hang_up(cx);
-            hang_up
-        })
+        .update(cx_a, |call, cx| call.hang_up(cx))
         .await
         .unwrap();
 
@@ -574,10 +571,7 @@ async fn test_joining_channels_and_calling_multiple_users_simultaneously(
 
     // Leave the room
     active_call_a
-        .update(cx_a, |call, cx| {
-            let hang_up = call.hang_up(cx);
-            hang_up
-        })
+        .update(cx_a, |call, cx| call.hang_up(cx))
         .await
         .unwrap();
 
@@ -2578,7 +2572,7 @@ async fn test_git_diff_base_change(
         );
         git::diff::assert_hunks(
             buffer.snapshot().git_diff_hunks_in_row_range(0..4),
-            &buffer,
+            buffer,
             &diff_base,
             &[(1..2, "", "two\n")],
         );
@@ -2602,7 +2596,7 @@ async fn test_git_diff_base_change(
         );
         git::diff::assert_hunks(
             buffer.snapshot().git_diff_hunks_in_row_range(0..4),
-            &buffer,
+            buffer,
             &diff_base,
             &[(1..2, "", "two\n")],
         );
@@ -2626,7 +2620,7 @@ async fn test_git_diff_base_change(
 
         git::diff::assert_hunks(
             buffer.snapshot().git_diff_hunks_in_row_range(0..4),
-            &buffer,
+            buffer,
             &diff_base,
             &[(2..3, "", "three\n")],
         );
@@ -2641,7 +2635,7 @@ async fn test_git_diff_base_change(
         );
         git::diff::assert_hunks(
             buffer.snapshot().git_diff_hunks_in_row_range(0..4),
-            &buffer,
+            buffer,
             &diff_base,
             &[(2..3, "", "three\n")],
         );
@@ -2684,7 +2678,7 @@ async fn test_git_diff_base_change(
         );
         git::diff::assert_hunks(
             buffer.snapshot().git_diff_hunks_in_row_range(0..4),
-            &buffer,
+            buffer,
             &diff_base,
             &[(1..2, "", "two\n")],
         );
@@ -2708,7 +2702,7 @@ async fn test_git_diff_base_change(
         );
         git::diff::assert_hunks(
             buffer.snapshot().git_diff_hunks_in_row_range(0..4),
-            &buffer,
+            buffer,
             &diff_base,
             &[(1..2, "", "two\n")],
         );
@@ -2741,7 +2735,7 @@ async fn test_git_diff_base_change(
 
         git::diff::assert_hunks(
             buffer.snapshot().git_diff_hunks_in_row_range(0..4),
-            &buffer,
+            buffer,
             &diff_base,
             &[(2..3, "", "three\n")],
         );
@@ -2756,7 +2750,7 @@ async fn test_git_diff_base_change(
         );
         git::diff::assert_hunks(
             buffer.snapshot().git_diff_hunks_in_row_range(0..4),
-            &buffer,
+            buffer,
             &diff_base,
             &[(2..3, "", "three\n")],
         );
@@ -2884,8 +2878,8 @@ async fn test_git_status_sync(
     client_a.fs().set_status_for_repo_via_git_operation(
         Path::new("/dir/.git"),
         &[
-            (&Path::new(A_TXT), GitFileStatus::Added),
-            (&Path::new(B_TXT), GitFileStatus::Added),
+            (Path::new(A_TXT), GitFileStatus::Added),
+            (Path::new(B_TXT), GitFileStatus::Added),
         ],
     );
 
@@ -2932,8 +2926,8 @@ async fn test_git_status_sync(
     client_a.fs().set_status_for_repo_via_working_copy_change(
         Path::new("/dir/.git"),
         &[
-            (&Path::new(A_TXT), GitFileStatus::Modified),
-            (&Path::new(B_TXT), GitFileStatus::Modified),
+            (Path::new(A_TXT), GitFileStatus::Modified),
+            (Path::new(B_TXT), GitFileStatus::Modified),
         ],
     );
 
@@ -6336,7 +6330,7 @@ async fn test_preview_tabs(cx: &mut TestAppContext) {
 
     // Close permanent tab
     pane.update(cx, |pane, cx| {
-        let id = pane.items().nth(0).unwrap().item_id();
+        let id = pane.items().next().unwrap().item_id();
         pane.close_item_by_id(id, workspace::SaveIntent::Skip, cx)
     })
     .await
@@ -6347,7 +6341,7 @@ async fn test_preview_tabs(cx: &mut TestAppContext) {
         assert_eq!(get_path(pane, 0, cx), path_1.clone());
         assert_eq!(
             pane.preview_item_id(),
-            Some(pane.items().nth(0).unwrap().item_id())
+            Some(pane.items().next().unwrap().item_id())
         );
 
         assert!(pane.can_navigate_backward());
@@ -6366,7 +6360,7 @@ async fn test_preview_tabs(cx: &mut TestAppContext) {
         assert_eq!(get_path(pane, 0, cx), path_1.clone());
         assert_eq!(
             pane.preview_item_id(),
-            Some(pane.items().nth(0).unwrap().item_id())
+            Some(pane.items().next().unwrap().item_id())
         );
 
         assert!(pane.can_navigate_backward());
@@ -6395,7 +6389,7 @@ async fn test_preview_tabs(cx: &mut TestAppContext) {
         assert_eq!(get_path(pane, 0, cx), path_1.clone());
         assert_eq!(
             pane.preview_item_id(),
-            Some(pane.items().nth(0).unwrap().item_id())
+            Some(pane.items().next().unwrap().item_id())
         );
 
         assert!(pane.can_navigate_backward());
@@ -6433,7 +6427,7 @@ async fn test_preview_tabs(cx: &mut TestAppContext) {
         assert_eq!(get_path(pane, 0, cx), path_2.clone());
         assert_eq!(
             pane.preview_item_id(),
-            Some(pane.items().nth(0).unwrap().item_id())
+            Some(pane.items().next().unwrap().item_id())
         );
 
         assert!(pane.can_navigate_backward());

crates/collab/src/tests/random_project_collaboration_tests.rs

@@ -282,7 +282,7 @@ impl RandomizedTest for ProjectCollaborationTest {
                             let mut paths = client.fs().paths(false);
                             paths.remove(0);
                             let new_root_path = if paths.is_empty() || rng.gen() {
-                                Path::new("/").join(&plan.next_root_dir_name())
+                                Path::new("/").join(plan.next_root_dir_name())
                             } else {
                                 paths.choose(rng).unwrap().clone()
                             };

crates/collab/src/tests/test_server.rs

@@ -263,8 +263,7 @@ impl TestServer {
                 })
             });
 
-        let git_hosting_provider_registry =
-            cx.update(|cx| GitHostingProviderRegistry::default_global(cx));
+        let git_hosting_provider_registry = cx.update(GitHostingProviderRegistry::default_global);
         git_hosting_provider_registry
             .register_hosting_provider(Arc::new(git_hosting_providers::Github));
 

crates/collab_ui/src/channel_view.rs

@@ -227,7 +227,7 @@ impl ChannelView {
             {
                 self.editor.update(cx, |editor, cx| {
                     editor.change_selections(Some(Autoscroll::focused()), cx, |s| {
-                        s.replace_cursors_with(|map| vec![item.range.start.to_display_point(&map)])
+                        s.replace_cursors_with(|map| vec![item.range.start.to_display_point(map)])
                     })
                 });
                 return;
@@ -460,8 +460,7 @@ impl Item for ChannelView {
     }
 
     fn deactivated(&mut self, cx: &mut ViewContext<Self>) {
-        self.editor
-            .update(cx, |editor, cx| Item::deactivated(editor, cx))
+        self.editor.update(cx, Item::deactivated)
     }
 
     fn set_nav_history(&mut self, history: ItemNavHistory, cx: &mut ViewContext<Self>) {

crates/collab_ui/src/chat_panel.rs

@@ -560,7 +560,7 @@ impl ChatPanel {
                 },
             )
             .child(
-                self.render_popover_buttons(&cx, message_id, can_delete_message, can_edit_message)
+                self.render_popover_buttons(cx, message_id, can_delete_message, can_edit_message)
                     .mt_neg_2p5(),
             )
     }
@@ -705,7 +705,7 @@ impl ChatPanel {
                 menu.entry(
                     "Copy message text",
                     None,
-                    cx.handler_for(&this, move |this, cx| {
+                    cx.handler_for(this, move |this, cx| {
                         if let Some(message) = this.active_chat().and_then(|active_chat| {
                             active_chat.read(cx).find_loaded_message(message_id)
                         }) {
@@ -718,7 +718,7 @@ impl ChatPanel {
                     menu.entry(
                         "Delete message",
                         None,
-                        cx.handler_for(&this, move |this, cx| this.remove_message(message_id, cx)),
+                        cx.handler_for(this, move |this, cx| this.remove_message(message_id, cx)),
                     )
                 })
             })
@@ -802,8 +802,7 @@ impl ChatPanel {
                 {
                     task.detach();
                 }
-            } else {
-                if let Some(task) = chat
+            } else if let Some(task) = chat
                 .update(cx, |chat, cx| chat.send_message(message, cx))
                 .log_err()
             {
@@ -811,7 +810,6 @@ impl ChatPanel {
             }
         }
     }
-    }
 
     fn remove_message(&mut self, id: u64, cx: &mut ViewContext<Self>) {
         if let Some((chat, _)) = self.active_chat.as_ref() {
@@ -854,7 +852,7 @@ impl ChatPanel {
             let scroll_to_message_id = this.update(&mut cx, |this, cx| {
                 this.set_active_chat(chat.clone(), cx);
 
-                scroll_to_message_id.or_else(|| this.last_acknowledged_message_id)
+                scroll_to_message_id.or(this.last_acknowledged_message_id)
             })?;
 
             if let Some(message_id) = scroll_to_message_id {

crates/collab_ui/src/chat_panel/message_editor.rs

@@ -293,8 +293,8 @@ impl MessageEditor {
         completion_fn: impl Fn(&StringMatch) -> (String, CodeLabel),
     ) -> Vec<Completion> {
         let matches = fuzzy::match_strings(
-            &candidates,
-            &query,
+            candidates,
+            query,
             true,
             10,
             &Default::default(),

crates/collab_ui/src/collab_panel.rs

@@ -219,7 +219,7 @@ impl CollabPanel {
             })
             .detach();
 
-            let channel_name_editor = cx.new_view(|cx| Editor::single_line(cx));
+            let channel_name_editor = cx.new_view(Editor::single_line);
 
             cx.subscribe(&channel_name_editor, |this: &mut Self, _, event, cx| {
                 if let editor::EditorEvent::Blurred = event {
@@ -328,7 +328,7 @@ impl CollabPanel {
                     panel.width = serialized_panel.width.map(|w| w.round());
                     panel.collapsed_channels = serialized_panel
                         .collapsed_channels
-                        .unwrap_or_else(|| Vec::new())
+                        .unwrap_or_else(Vec::new)
                         .iter()
                         .map(|cid| ChannelId(*cid))
                         .collect();
@@ -955,7 +955,7 @@ impl CollabPanel {
     }
 
     fn take_editing_state(&mut self, cx: &mut ViewContext<Self>) -> bool {
-        if let Some(_) = self.channel_editing_state.take() {
+        if self.channel_editing_state.take().is_some() {
             self.channel_name_editor.update(cx, |editor, cx| {
                 editor.set_text("", cx);
             });
@@ -1850,8 +1850,7 @@ impl CollabPanel {
         if let Some(contact) = self.selected_contact() {
             self.deploy_contact_context_menu(bounds.center(), contact, cx);
             cx.stop_propagation();
-            return;
-        };
+        }
     }
 
     fn selected_channel(&self) -> Option<&Arc<Channel>> {
@@ -2142,7 +2141,7 @@ impl CollabPanel {
             } => self
                 .render_participant_project(
                     *project_id,
-                    &worktree_root_names,
+                    worktree_root_names,
                     *host_user_id,
                     *is_last,
                     is_selected,
@@ -2401,7 +2400,7 @@ impl CollabPanel {
     ) -> impl IntoElement {
         let github_login = SharedString::from(user.github_login.clone());
         let user_id = user.id;
-        let is_response_pending = self.user_store.read(cx).is_contact_request_pending(&user);
+        let is_response_pending = self.user_store.read(cx).is_contact_request_pending(user);
         let color = if is_response_pending {
             Color::Muted
         } else {
@@ -2457,7 +2456,7 @@ impl CollabPanel {
         let response_is_pending = self
             .channel_store
             .read(cx)
-            .has_pending_channel_invite_response(&channel);
+            .has_pending_channel_invite_response(channel);
         let color = if response_is_pending {
             Color::Muted
         } else {
@@ -2832,7 +2831,7 @@ impl Panel for CollabPanel {
     fn icon(&self, cx: &gpui::WindowContext) -> Option<ui::IconName> {
         CollaborationPanelSettings::get_global(cx)
             .button
-            .then(|| ui::IconName::Collab)
+            .then_some(ui::IconName::Collab)
     }
 
     fn icon_tooltip(&self, _cx: &WindowContext) -> Option<&'static str> {

crates/collab_ui/src/collab_panel/channel_modal.rs

@@ -309,7 +309,7 @@ impl PickerDelegate for ChannelModalDelegate {
                             let members = search_members.await?;
                             picker.update(&mut cx, |picker, cx| {
                                 picker.delegate.has_all_members =
-                                    query == "" && members.len() < 100;
+                                    query.is_empty() && members.len() < 100;
                                 picker.delegate.matching_member_indices =
                                     (0..members.len()).collect();
                                 picker.delegate.members = members;

crates/collab_ui/src/collab_panel/contact_finder.rs

@@ -154,7 +154,7 @@ impl PickerDelegate for ContactFinderDelegate {
                 .selected(selected)
                 .start_slot(Avatar::new(user.avatar_uri.clone()))
                 .child(Label::new(user.github_login.clone()))
-                .end_slot::<Icon>(icon_path.map(|icon_path| Icon::from_path(icon_path))),
+                .end_slot::<Icon>(icon_path.map(Icon::from_path)),
         )
     }
 }

crates/collab_ui/src/collab_ui.rs

@@ -31,7 +31,7 @@ pub fn init(app_state: &Arc<AppState>, cx: &mut AppContext) {
     chat_panel::init(cx);
     collab_panel::init(cx);
     notification_panel::init(cx);
-    notifications::init(&app_state, cx);
+    notifications::init(app_state, cx);
     title_bar::init(cx);
     vcs_menu::init(cx);
 }

crates/collab_ui/src/notification_panel.rs

@@ -92,7 +92,7 @@ impl NotificationPanel {
         cx.new_view(|cx: &mut ViewContext<Self>| {
             let mut status = client.status();
             cx.spawn(|this, mut cx| async move {
-                while let Some(_) = status.next().await {
+                while (status.next().await).is_some() {
                     if this
                         .update(&mut cx, |_, cx| {
                             cx.notify();

crates/collab_ui/src/notifications/project_shared_notification.rs

@@ -52,7 +52,7 @@ pub fn init(app_state: &Arc<AppState>, cx: &mut AppContext) {
         room::Event::RemoteProjectUnshared { project_id }
         | room::Event::RemoteProjectJoined { project_id }
         | room::Event::RemoteProjectInvitationDiscarded { project_id } => {
-            if let Some(windows) = notification_windows.remove(&project_id) {
+            if let Some(windows) = notification_windows.remove(project_id) {
                 for window in windows {
                     window
                         .update(cx, |_, cx| {

crates/collab_ui/src/panel_settings.rs

@@ -1,4 +1,3 @@
-use anyhow;
 use gpui::Pixels;
 use schemars::JsonSchema;
 use serde_derive::{Deserialize, Serialize};

crates/command_palette/src/command_palette.rs

@@ -273,7 +273,7 @@ impl PickerDelegate for CommandPaletteDelegate {
             let mut commands = self.all_commands.clone();
             let hit_counts = cx.global::<HitCounts>().clone();
             let executor = cx.background_executor().clone();
-            let query = trim_consecutive_whitespaces(&query.as_str());
+            let query = trim_consecutive_whitespaces(query.as_str());
             async move {
                 commands.sort_by_key(|action| {
                     (
@@ -303,7 +303,7 @@ impl PickerDelegate for CommandPaletteDelegate {
                         })
                         .collect()
                 } else {
-                    let ret = fuzzy::match_strings(
+                    fuzzy::match_strings(
                         &candidates,
                         &query,
                         true,
@@ -311,8 +311,7 @@ impl PickerDelegate for CommandPaletteDelegate {
                         &Default::default(),
                         executor,
                     )
-                    .await;
-                    ret
+                    .await
                 };
 
                 tx.send((commands, matches)).await.log_err();

crates/command_palette_hooks/src/command_palette_hooks.rs

@@ -118,9 +118,7 @@ impl CommandPaletteInterceptor {
 
     /// Intercepts the given query from the command palette.
     pub fn intercept(&self, query: &str, cx: &AppContext) -> Option<CommandInterceptResult> {
-        let Some(handler) = self.0.as_ref() else {
-            return None;
-        };
+        let handler = self.0.as_ref()?;
 
         (handler)(query, cx)
     }

crates/context_servers/src/client.rs

@@ -235,13 +235,13 @@ impl Client {
             let content = buffer.trim();
 
             if !content.is_empty() {
-                if let Ok(response) = serde_json::from_str::<AnyResponse>(&content) {
+                if let Ok(response) = serde_json::from_str::<AnyResponse>(content) {
                     if let Some(handlers) = response_handlers.lock().as_mut() {
                         if let Some(handler) = handlers.remove(&response.id) {
                             handler(Ok(content.to_string()));
                         }
                     }
-                } else if let Ok(notification) = serde_json::from_str::<AnyNotification>(&content) {
+                } else if let Ok(notification) = serde_json::from_str::<AnyNotification>(content) {
                     let mut notification_handlers = notification_handlers.lock();
                     if let Some(handler) =
                         notification_handlers.get_mut(notification.method.as_str())

crates/context_servers/src/context_servers.rs

@@ -1,5 +1,4 @@
 use gpui::{actions, AppContext, Context, ViewContext};
-use log;
 use manager::ContextServerManager;
 use workspace::Workspace;
 
@@ -27,7 +26,7 @@ pub fn init(cx: &mut AppContext) {
 }
 
 fn restart_servers(_workspace: &mut Workspace, _action: &Restart, cx: &mut ViewContext<Workspace>) {
-    let model = ContextServerManager::global(&cx);
+    let model = ContextServerManager::global(cx);
     cx.update_model(&model, |manager, cx| {
         for server in manager.servers() {
             manager

crates/context_servers/src/manager.rs

@@ -125,6 +125,12 @@ pub enum Event {
 impl Global for ContextServerManager {}
 impl EventEmitter<Event> for ContextServerManager {}
 
+impl Default for ContextServerManager {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl ContextServerManager {
     pub fn new() -> Self {
         Self {

crates/copilot/src/copilot.rs

@@ -422,14 +422,13 @@ impl Copilot {
         (this, fake_server)
     }
 
-    fn start_language_server(
+    async fn start_language_server(
         new_server_id: LanguageServerId,
         http: Arc<dyn HttpClient>,
         node_runtime: Arc<dyn NodeRuntime>,
         this: WeakModel<Self>,
         mut cx: AsyncAppContext,
-    ) -> impl Future<Output = ()> {
-        async move {
+    ) {
         let start_language_server = async {
             let server_path = get_copilot_lsp(http).await?;
             let node_path = node_runtime.binary_path().await?;
@@ -457,9 +456,7 @@ impl Copilot {
             )?;
 
             server
-                    .on_notification::<StatusNotification, _>(
-                        |_, _| { /* Silence the notification */ },
-                    )
+                .on_notification::<StatusNotification, _>(|_, _| { /* Silence the notification */ })
                 .detach();
             let server = cx.update(|cx| server.initialize(None, cx))?.await?;
 
@@ -506,7 +503,6 @@ impl Copilot {
         })
         .ok();
     }
-    }
 
     pub fn sign_in(&mut self, cx: &mut ModelContext<Self>) -> Task<Result<()>> {
         if let CopilotServer::Running(server) = &mut self.server {
@@ -1005,7 +1001,7 @@ async fn get_copilot_lsp(http: Arc<dyn HttpClient>) -> anyhow::Result<PathBuf> {
 
             let url = &release
                 .assets
-                .get(0)
+                .first()
                 .context("Github release for copilot contained no assets")?
                 .browser_download_url;
 

crates/copilot/src/copilot_chat.rs

@@ -15,9 +15,8 @@ use settings::watch_config_file;
 use strum::EnumIter;
 use ui::Context;
 
-pub const COPILOT_CHAT_COMPLETION_URL: &'static str =
-    "https://api.githubcopilot.com/chat/completions";
-pub const COPILOT_CHAT_AUTH_URL: &'static str = "https://api.github.com/copilot_internal/v2/token";
+pub const COPILOT_CHAT_COMPLETION_URL: &str = "https://api.githubcopilot.com/chat/completions";
+pub const COPILOT_CHAT_AUTH_URL: &str = "https://api.github.com/copilot_internal/v2/token";
 
 #[derive(Clone, Copy, Serialize, Deserialize, Debug, Eq, PartialEq)]
 #[serde(rename_all = "lowercase")]

crates/copilot/src/copilot_completion_provider.rs

@@ -145,7 +145,7 @@ impl InlineCompletionProvider for CopilotCompletionProvider {
                     };
                 }
                 Direction::Next => {
-                    if self.completions.len() == 0 {
+                    if self.completions.is_empty() {
                         self.active_completion_index = 0
                     } else {
                         self.active_completion_index =
@@ -221,8 +221,7 @@ impl InlineCompletionProvider for CopilotCompletionProvider {
             })
             .detach_and_log_err(cx);
 
-        if should_report_inline_completion_event {
-            if self.active_completion().is_some() {
+        if should_report_inline_completion_event && self.active_completion().is_some() {
             if let Some(telemetry) = self.telemetry.as_ref() {
                 telemetry.report_inline_completion_event(
                     Self::name().to_string(),
@@ -232,7 +231,6 @@ impl InlineCompletionProvider for CopilotCompletionProvider {
             }
         }
     }
-    }
 
     fn active_completion_text<'a>(
         &'a self,
@@ -1148,7 +1146,7 @@ mod tests {
     }
 
     fn init_test(cx: &mut TestAppContext, f: fn(&mut AllLanguageSettingsContent)) {
-        _ = cx.update(|cx| {
+        cx.update(|cx| {
             let store = SettingsStore::test(cx);
             cx.set_global(store);
             theme::init(theme::LoadThemes::JustBase, cx);

crates/copilot/src/sign_in.rs

@@ -167,7 +167,7 @@ impl Render for CopilotCodeVerification {
         let prompt = match &self.status {
             Status::SigningIn {
                 prompt: Some(prompt),
-            } => Self::render_prompting_modal(self.connect_clicked, &prompt, cx).into_any_element(),
+            } => Self::render_prompting_modal(self.connect_clicked, prompt, cx).into_any_element(),
             Status::Unauthorized => {
                 self.connect_clicked = false;
                 Self::render_unauthorized_modal(cx).into_any_element()

crates/db/src/db.rs

@@ -18,7 +18,7 @@ use sqlez::thread_safe_connection::ThreadSafeConnection;
 use sqlez_macros::sql;
 use std::env;
 use std::future::Future;
-use std::path::{Path, PathBuf};
+use std::path::Path;
 use std::sync::atomic::{AtomicBool, Ordering};
 use std::sync::LazyLock;
 use util::{maybe, ResultExt};
@@ -79,7 +79,7 @@ pub async fn open_db<M: Migrator + 'static>(
     open_fallback_db().await
 }
 
-async fn open_main_db<M: Migrator>(db_path: &PathBuf) -> Option<ThreadSafeConnection<M>> {
+async fn open_main_db<M: Migrator>(db_path: &Path) -> Option<ThreadSafeConnection<M>> {
     log::info!("Opening main db");
     ThreadSafeConnection::<M>::builder(db_path.to_string_lossy().as_ref(), true)
         .with_db_initialization_query(DB_INITIALIZE_QUERY)

crates/dev_server_projects/src/dev_server_projects.rs

@@ -28,7 +28,7 @@ impl From<proto::DevServerProject> for DevServerProject {
     fn from(project: proto::DevServerProject) -> Self {
         Self {
             id: DevServerProjectId(project.id),
-            project_id: project.project_id.map(|id| ProjectId(id)),
+            project_id: project.project_id.map(ProjectId),
             paths: project.paths.into_iter().map(|path| path.into()).collect(),
             dev_server_id: DevServerId(project.dev_server_id),
         }

crates/diagnostics/src/diagnostics.rs

@@ -432,7 +432,7 @@ impl ProjectDiagnosticsEditor {
                                 .unwrap();
 
                             prev_excerpt_id = excerpt_id;
-                            first_excerpt_id.get_or_insert_with(|| prev_excerpt_id);
+                            first_excerpt_id.get_or_insert(prev_excerpt_id);
                             group_state.excerpts.push(excerpt_id);
                             let header_position = (excerpt_id, language::Anchor::MIN);
 
@@ -491,7 +491,7 @@ impl ProjectDiagnosticsEditor {
                     blocks_to_remove.extend(group_state.blocks.iter().copied());
                 } else if let Some((_, group_state)) = to_keep {
                     prev_excerpt_id = *group_state.excerpts.last().unwrap();
-                    first_excerpt_id.get_or_insert_with(|| prev_excerpt_id);
+                    first_excerpt_id.get_or_insert(prev_excerpt_id);
                     path_state.diagnostic_groups.push(group_state);
                 }
             }
@@ -776,7 +776,7 @@ impl Item for ProjectDiagnosticsEditor {
     }
 }
 
-const DIAGNOSTIC_HEADER: &'static str = "diagnostic header";
+const DIAGNOSTIC_HEADER: &str = "diagnostic header";
 
 fn diagnostic_header_renderer(diagnostic: Diagnostic) -> RenderBlock {
     let (message, code_ranges) = highlight_diagnostic_message(&diagnostic, None);

crates/diagnostics/src/diagnostics_tests.rs

@@ -773,9 +773,7 @@ async fn test_random_diagnostics(cx: &mut TestAppContext, mut rng: StdRng) {
                             (
                                 path.clone(),
                                 server_id,
-                                current_diagnostics
-                                    .entry((path, server_id))
-                                    .or_insert(vec![]),
+                                current_diagnostics.entry((path, server_id)).or_default(),
                             )
                         }
                     };
@@ -853,8 +851,8 @@ fn get_diagnostics_excerpts(
                 result.push(ExcerptInfo {
                     path: buffer.file().unwrap().path().to_path_buf(),
                     range: ExcerptRange {
-                        context: range.context.to_point(&buffer),
-                        primary: range.primary.map(|range| range.to_point(&buffer)),
+                        context: range.context.to_point(buffer),
+                        primary: range.primary.map(|range| range.to_point(buffer)),
                     },
                     group_id: usize::MAX,
                     primary: false,
@@ -962,9 +960,9 @@ fn random_diagnostic(
     }
 }
 
-const FILE_HEADER: &'static str = "file header";
-const EXCERPT_HEADER: &'static str = "excerpt header";
-const EXCERPT_FOOTER: &'static str = "excerpt footer";
+const FILE_HEADER: &str = "file header";
+const EXCERPT_HEADER: &str = "excerpt header";
+const EXCERPT_FOOTER: &str = "excerpt footer";
 
 fn editor_blocks(
     editor: &View<Editor>,

crates/diagnostics/src/toolbar_controls.rs

@@ -18,7 +18,7 @@ impl Render for ToolbarControls {
             let editor = editor.read(cx);
             include_warnings = editor.include_warnings;
             has_stale_excerpts = !editor.paths_to_update.is_empty();
-            is_updating = editor.update_paths_tx.len() > 0
+            is_updating = !editor.update_paths_tx.is_empty()
                 || editor
                     .project
                     .read(cx)
@@ -84,6 +84,12 @@ impl ToolbarItemView for ToolbarControls {
     }
 }
 
+impl Default for ToolbarControls {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl ToolbarControls {
     pub fn new() -> Self {
         ToolbarControls { editor: None }

crates/editor/src/clangd_ext.rs

@@ -28,7 +28,7 @@ pub fn switch_source_header(
     };
 
     let Some((_, _, server_to_query, buffer)) =
-        find_specific_language_server_in_selection(&editor, cx, &is_c_language, CLANGD_SERVER_NAME)
+        find_specific_language_server_in_selection(editor, cx, is_c_language, CLANGD_SERVER_NAME)
     else {
         return;
     };
@@ -85,7 +85,7 @@ pub fn switch_source_header(
 
 pub fn apply_related_actions(editor: &View<Editor>, cx: &mut WindowContext) {
     if editor.update(cx, |e, cx| {
-        find_specific_language_server_in_selection(e, cx, &is_c_language, CLANGD_SERVER_NAME)
+        find_specific_language_server_in_selection(e, cx, is_c_language, CLANGD_SERVER_NAME)
             .is_some()
     }) {
         register_action(editor, cx, switch_source_header);

crates/editor/src/display_map.rs

@@ -588,7 +588,7 @@ impl DisplaySnapshot {
 
     pub fn display_point_to_anchor(&self, point: DisplayPoint, bias: Bias) -> Anchor {
         self.buffer_snapshot
-            .anchor_at(point.to_offset(&self, bias), bias)
+            .anchor_at(point.to_offset(self, bias), bias)
     }
 
     fn display_point_to_inlay_point(&self, point: DisplayPoint, bias: Bias) -> InlayPoint {
@@ -735,7 +735,7 @@ impl DisplaySnapshot {
         let mut line = String::new();
 
         let range = display_row..display_row.next_row();
-        for chunk in self.highlighted_chunks(range, false, &editor_style) {
+        for chunk in self.highlighted_chunks(range, false, editor_style) {
             line.push_str(chunk.text);
 
             let text_style = if let Some(style) = chunk.style {
@@ -1286,7 +1286,7 @@ pub mod tests {
                                         height,
                                         disposition,
                                         render: Box::new(|_| div().into_any()),
-                                        priority: priority,
+                                        priority,
                                     }
                                 })
                                 .collect::<Vec<_>>();

crates/editor/src/display_map/block_map.rs

@@ -60,9 +60,9 @@ pub struct BlockSnapshot {
 #[derive(Clone, Copy, Debug, Default, PartialEq, Eq, PartialOrd, Ord, Hash)]
 pub struct CustomBlockId(usize);
 
-impl Into<ElementId> for CustomBlockId {
-    fn into(self) -> ElementId {
-        ElementId::Integer(self.0)
+impl From<CustomBlockId> for ElementId {
+    fn from(val: CustomBlockId) -> Self {
+        ElementId::Integer(val.0)
     }
 }
 
@@ -657,7 +657,7 @@ impl BlockMap {
             .flatten()
     }
 
-    pub(crate) fn sort_blocks<B: BlockLike>(blocks: &mut Vec<(u32, B)>) {
+    pub(crate) fn sort_blocks<B: BlockLike>(blocks: &mut [(u32, B)]) {
         // Place excerpt headers and footers above custom blocks on the same row
         blocks.sort_unstable_by(|(row_a, block_a), (row_b, block_b)| {
             row_a.cmp(row_b).then_with(|| {
@@ -1478,7 +1478,7 @@ mod tests {
 
     #[gpui::test]
     fn test_basic_blocks(cx: &mut gpui::TestAppContext) {
-        cx.update(|cx| init_test(cx));
+        cx.update(init_test);
 
         let text = "aaa\nbbb\nccc\nddd";
 
@@ -1734,7 +1734,7 @@ mod tests {
 
     #[gpui::test]
     fn test_replace_with_heights(cx: &mut gpui::TestAppContext) {
-        let _update = cx.update(|cx| init_test(cx));
+        cx.update(init_test);
 
         let text = "aaa\nbbb\nccc\nddd";
 
@@ -1838,7 +1838,7 @@ mod tests {
     #[cfg(target_os = "macos")]
     #[gpui::test]
     fn test_blocks_on_wrapped_lines(cx: &mut gpui::TestAppContext) {
-        cx.update(|cx| init_test(cx));
+        cx.update(init_test);
 
         let _font_id = cx.text_system().font_id(&font("Helvetica")).unwrap();
 
@@ -1885,7 +1885,7 @@ mod tests {
 
     #[gpui::test(iterations = 100)]
     fn test_random_blocks(cx: &mut gpui::TestAppContext, mut rng: StdRng) {
-        cx.update(|cx| init_test(cx));
+        cx.update(init_test);
 
         let operations = env::var("OPERATIONS")
             .map(|i| i.parse().expect("invalid `OPERATIONS` variable"))

crates/editor/src/display_map/crease_map.rs

@@ -46,7 +46,7 @@ impl CreaseSnapshot {
                 Ordering::Greater => break,
             }
         }
-        return None;
+        None
     }
 
     pub fn crease_items_with_offsets(
@@ -183,7 +183,7 @@ impl CreaseMap {
             }
         }
         removals.sort_unstable_by(|(a_id, a_range), (b_id, b_range)| {
-            AnchorRangeExt::cmp(a_range, b_range, snapshot).then(b_id.cmp(&a_id))
+            AnchorRangeExt::cmp(a_range, b_range, snapshot).then(b_id.cmp(a_id))
         });
 
         self.snapshot.creases = {

crates/editor/src/display_map/fold_map.rs

@@ -122,7 +122,7 @@ impl<'a> FoldMapWriter<'a> {
         let snapshot = self.0.snapshot.inlay_snapshot.clone();
         for (range, fold_text) in ranges.into_iter() {
             let buffer = &snapshot.buffer;
-            let range = range.start.to_offset(&buffer)..range.end.to_offset(&buffer);
+            let range = range.start.to_offset(buffer)..range.end.to_offset(buffer);
 
             // Ignore any empty ranges.
             if range.start == range.end {
@@ -420,7 +420,7 @@ impl FoldMap {
                     }
 
                     if fold_range.end > fold_range.start {
-                        const ELLIPSIS: &'static str = "⋯";
+                        const ELLIPSIS: &str = "⋯";
 
                         let fold_id = fold.id;
                         new_transforms.push(
@@ -850,7 +850,8 @@ fn consolidate_inlay_edits(mut edits: Vec<InlayEdit>) -> Vec<InlayEdit> {
 
     let _old_alloc_ptr = edits.as_ptr();
     let mut inlay_edits = edits.into_iter();
-    let inlay_edits = if let Some(mut first_edit) = inlay_edits.next() {
+
+    if let Some(mut first_edit) = inlay_edits.next() {
         // This code relies on reusing allocations from the Vec<_> - at the time of writing .flatten() prevents them.
         #[allow(clippy::filter_map_identity)]
         let mut v: Vec<_> = inlay_edits
@@ -872,9 +873,7 @@ fn consolidate_inlay_edits(mut edits: Vec<InlayEdit>) -> Vec<InlayEdit> {
         v
     } else {
         vec![]
-    };
-
-    inlay_edits
+    }
 }
 
 fn consolidate_fold_edits(mut edits: Vec<FoldEdit>) -> Vec<FoldEdit> {
@@ -886,7 +885,8 @@ fn consolidate_fold_edits(mut edits: Vec<FoldEdit>) -> Vec<FoldEdit> {
     });
     let _old_alloc_ptr = edits.as_ptr();
     let mut fold_edits = edits.into_iter();
-    let fold_edits = if let Some(mut first_edit) = fold_edits.next() {
+
+    if let Some(mut first_edit) = fold_edits.next() {
         // This code relies on reusing allocations from the Vec<_> - at the time of writing .flatten() prevents them.
         #[allow(clippy::filter_map_identity)]
         let mut v: Vec<_> = fold_edits
@@ -907,9 +907,7 @@ fn consolidate_fold_edits(mut edits: Vec<FoldEdit>) -> Vec<FoldEdit> {
         v
     } else {
         vec![]
-    };
-
-    fold_edits
+    }
 }
 
 #[derive(Clone, Debug, Default)]
@@ -956,9 +954,9 @@ impl sum_tree::Summary for TransformSummary {
 #[derive(Copy, Clone, Eq, PartialEq, Debug, Default)]
 pub struct FoldId(usize);
 
-impl Into<ElementId> for FoldId {
-    fn into(self) -> ElementId {
-        ElementId::Integer(self.0)
+impl From<FoldId> for ElementId {
+    fn from(val: FoldId) -> Self {
+        ElementId::Integer(val.0)
     }
 }
 

crates/editor/src/display_map/inlay_map.rs

@@ -324,7 +324,7 @@ impl<'a> Iterator for InlayChunks<'a> {
                     } else {
                         next_inlay_highlight_endpoint = range.end - offset_in_inlay.0;
                         highlight_style
-                            .get_or_insert_with(|| Default::default())
+                            .get_or_insert_with(Default::default)
                             .highlight(*style);
                     }
                 } else {
@@ -451,8 +451,8 @@ impl InlayMap {
     ) -> (InlaySnapshot, Vec<InlayEdit>) {
         let snapshot = &mut self.snapshot;
 
-        if buffer_edits.is_empty() {
-            if snapshot.buffer.trailing_excerpt_update_count()
+        if buffer_edits.is_empty()
+            && snapshot.buffer.trailing_excerpt_update_count()
                 != buffer_snapshot.trailing_excerpt_update_count()
         {
             buffer_edits.push(Edit {
@@ -460,7 +460,6 @@ impl InlayMap {
                 new: buffer_snapshot.len()..buffer_snapshot.len(),
             });
         }
-        }
 
         if buffer_edits.is_empty() {
             if snapshot.buffer.edit_count() != buffer_snapshot.edit_count()

crates/editor/src/display_map/tab_map.rs

@@ -654,7 +654,7 @@ mod tests {
     fn test_marking_tabs(cx: &mut gpui::AppContext) {
         let input = "\t \thello";
 
-        let buffer = MultiBuffer::build_simple(&input, cx);
+        let buffer = MultiBuffer::build_simple(input, cx);
         let buffer_snapshot = buffer.read(cx).snapshot(cx);
         let (_, inlay_snapshot) = InlayMap::new(buffer_snapshot.clone());
         let (_, fold_snapshot) = FoldMap::new(inlay_snapshot);

crates/editor/src/display_map/wrap_map.rs

@@ -111,7 +111,7 @@ impl WrapMap {
         } else {
             self.edits_since_sync = self
                 .edits_since_sync
-                .compose(&self.snapshot.interpolate(tab_snapshot, &edits));
+                .compose(self.snapshot.interpolate(tab_snapshot, &edits));
             self.snapshot.interpolated = false;
         }
 
@@ -213,7 +213,7 @@ impl WrapMap {
             }
             let new_rows = self.snapshot.transforms.summary().output.lines.row + 1;
             self.snapshot.interpolated = false;
-            self.edits_since_sync = self.edits_since_sync.compose(&Patch::new(vec![WrapEdit {
+            self.edits_since_sync = self.edits_since_sync.compose(Patch::new(vec![WrapEdit {
                 old: 0..old_rows,
                 new: 0..new_rows,
             }]));
@@ -1009,7 +1009,8 @@ impl<'a> sum_tree::Dimension<'a, TransformSummary> for WrapPoint {
 fn consolidate_wrap_edits(edits: Vec<WrapEdit>) -> Vec<WrapEdit> {
     let _old_alloc_ptr = edits.as_ptr();
     let mut wrap_edits = edits.into_iter();
-    let wrap_edits = if let Some(mut first_edit) = wrap_edits.next() {
+
+    if let Some(mut first_edit) = wrap_edits.next() {
         // This code relies on reusing allocations from the Vec<_> - at the time of writing .flatten() prevents them.
         #[allow(clippy::filter_map_identity)]
         let mut v: Vec<_> = wrap_edits
@@ -1030,9 +1031,7 @@ fn consolidate_wrap_edits(edits: Vec<WrapEdit>) -> Vec<WrapEdit> {
         v
     } else {
         vec![]
-    };
-
-    wrap_edits
+    }
 }
 
 #[cfg(test)]

crates/editor/src/editor.rs

@@ -1003,11 +1003,11 @@ impl CompletionsMenu {
             cx,
         );
 
-        return cx.spawn(move |this, mut cx| async move {
+        cx.spawn(move |this, mut cx| async move {
             if let Some(true) = resolve_task.await.log_err() {
                 this.update(&mut cx, |_, cx| cx.notify()).ok();
             }
-        });
+        })
     }
 
     fn attempt_resolve_selected_completion_documentation(
@@ -2350,7 +2350,7 @@ impl Editor {
             if let Some(show_inline_completions) = self.show_inline_completions_override {
                 show_inline_completions
             } else {
-                self.mode == EditorMode::Full && provider.is_enabled(&buffer, buffer_position, cx)
+                self.mode == EditorMode::Full && provider.is_enabled(buffer, buffer_position, cx)
             }
         } else {
             false
@@ -2729,7 +2729,7 @@ impl Editor {
 
             if !add || click_count > 1 {
                 None
-            } else if selected_points.len() > 0 {
+            } else if !selected_points.is_empty() {
                 Some(selected_points[0].id)
             } else {
                 let clicked_point_already_selected =
@@ -2738,17 +2738,13 @@ impl Editor {
                             || selection.end.to_point(buffer) == end.to_point(buffer)
                     });
 
-                if let Some(selection) = clicked_point_already_selected {
-                    Some(selection.id)
-                } else {
-                    None
-                }
+                clicked_point_already_selected.map(|selection| selection.id)
             }
         };
 
         let selections_count = self.selections.count();
 
-        self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
+        self.change_selections(auto_scroll.then(Autoscroll::newest), cx, |s| {
             if let Some(point_to_delete) = point_to_delete {
                 s.delete(point_to_delete);
 
@@ -2981,11 +2977,11 @@ impl Editor {
             return;
         }
 
-        if self.mode == EditorMode::Full {
-            if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
+        if self.mode == EditorMode::Full
+            && self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel())
+        {
             return;
         }
-        }
 
         cx.propagate();
     }
@@ -3023,12 +3019,10 @@ impl Editor {
             return true;
         }
 
-        if self.mode == EditorMode::Full {
-            if self.active_diagnostics.is_some() {
+        if self.mode == EditorMode::Full && self.active_diagnostics.is_some() {
             self.dismiss_diagnostics(cx);
             return true;
         }
-        }
 
         false
     }
@@ -3550,10 +3544,10 @@ impl Editor {
                             .unwrap_or_default();
                         let mut new_text =
                             String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
-                        new_text.push_str("\n");
+                        new_text.push('\n');
                         new_text.extend(indent.chars());
                         if let Some(delimiter) = &comment_delimiter {
-                            new_text.push_str(&delimiter);
+                            new_text.push_str(delimiter);
                         }
                         if insert_extra_newline {
                             new_text = new_text.repeat(2);
@@ -4187,7 +4181,7 @@ impl Editor {
         };
         let trigger_kind = match (&options.trigger, is_followup_invoke) {
             (_, true) => CompletionTriggerKind::TRIGGER_FOR_INCOMPLETE_COMPLETIONS,
-            (Some(trigger), _) if buffer.read(cx).completion_triggers().contains(&trigger) => {
+            (Some(trigger), _) if buffer.read(cx).completion_triggers().contains(trigger) => {
                 CompletionTriggerKind::TRIGGER_CHARACTER
             }
 
@@ -4627,8 +4621,7 @@ impl Editor {
                             && code_actions
                                 .as_ref()
                                 .map_or(true, |actions| actions.is_empty());
-                        if let Some(task) = editor
-                            .update(&mut cx, |editor, cx| {
+                        if let Ok(task) = editor.update(&mut cx, |editor, cx| {
                             *editor.context_menu.write() =
                                 Some(ContextMenu::CodeActions(CodeActionsMenu {
                                     buffer,
@@ -4651,9 +4644,7 @@ impl Editor {
                             }
                             cx.notify();
                             Task::ready(Ok(()))
-                            })
-                            .ok()
-                        {
+                        }) {
                             task.await
                         } else {
                             Ok(())
@@ -5257,7 +5248,7 @@ impl Editor {
     }
 
     fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
-        if let Some(_) = self.tasks.insert(key, value) {
+        if self.tasks.insert(key, value).is_some() {
             // This case should hopefully be rare, but just in case...
             log::error!("multiple different run targets found on a single line, only the last target will be rendered")
         }
@@ -6060,7 +6051,7 @@ impl Editor {
             Some(MultiBufferRow(0)..multi_buffer_snapshot.max_buffer_row()).into_iter(),
             &multi_buffer_snapshot,
         ) {
-            Self::prepare_revert_change(&mut revert_changes, &self.buffer(), &hunk, cx);
+            Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
         }
         if !revert_changes.is_empty() {
             self.transact(cx, |editor, cx| {
@@ -6634,7 +6625,7 @@ impl Editor {
                     head = display_map.clip_point(head, Bias::Right);
                     let goal = SelectionGoal::HorizontalPosition(
                         display_map
-                            .x_for_display_point(head, &text_layout_details)
+                            .x_for_display_point(head, text_layout_details)
                             .into(),
                     );
                     selection.collapse_to(head, goal);
@@ -6967,7 +6958,7 @@ impl Editor {
                     selection.start,
                     selection.goal,
                     false,
-                    &text_layout_details,
+                    text_layout_details,
                 );
                 selection.collapse_to(cursor, goal);
             });
@@ -7003,7 +6994,7 @@ impl Editor {
                     action.lines,
                     selection.goal,
                     false,
-                    &text_layout_details,
+                    text_layout_details,
                 );
                 selection.collapse_to(cursor, goal);
             });
@@ -7034,7 +7025,7 @@ impl Editor {
                     action.lines,
                     selection.goal,
                     false,
-                    &text_layout_details,
+                    text_layout_details,
                 );
                 selection.collapse_to(cursor, goal);
             });
@@ -7045,7 +7036,7 @@ impl Editor {
         let text_layout_details = &self.text_layout_details(cx);
         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
             s.move_heads_with(|map, head, goal| {
-                movement::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
+                movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
             })
         })
     }
@@ -7054,7 +7045,7 @@ impl Editor {
         let text_layout_details = &self.text_layout_details(cx);
         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
             s.move_heads_with(|map, head, goal| {
-                movement::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
+                movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
             })
         })
     }
@@ -7068,7 +7059,7 @@ impl Editor {
 
         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
             s.move_heads_with(|map, head, goal| {
-                movement::up_by_rows(map, head, row_count, goal, false, &text_layout_details)
+                movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
             })
         })
     }
@@ -7117,7 +7108,7 @@ impl Editor {
                     row_count,
                     selection.goal,
                     false,
-                    &text_layout_details,
+                    text_layout_details,
                 );
                 selection.collapse_to(cursor, goal);
             });
@@ -7128,7 +7119,7 @@ impl Editor {
         let text_layout_details = &self.text_layout_details(cx);
         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
             s.move_heads_with(|map, head, goal| {
-                movement::up(map, head, goal, false, &text_layout_details)
+                movement::up(map, head, goal, false, text_layout_details)
             })
         })
     }
@@ -7156,7 +7147,7 @@ impl Editor {
                     selection.end,
                     selection.goal,
                     false,
-                    &text_layout_details,
+                    text_layout_details,
                 );
                 selection.collapse_to(cursor, goal);
             });
@@ -7177,7 +7168,7 @@ impl Editor {
 
         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
             s.move_heads_with(|map, head, goal| {
-                movement::down_by_rows(map, head, row_count, goal, false, &text_layout_details)
+                movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
             })
         })
     }
@@ -7225,7 +7216,7 @@ impl Editor {
                     row_count,
                     selection.goal,
                     false,
-                    &text_layout_details,
+                    text_layout_details,
                 );
                 selection.collapse_to(cursor, goal);
             });
@@ -7236,7 +7227,7 @@ impl Editor {
         let text_layout_details = &self.text_layout_details(cx);
         self.change_selections(Some(Autoscroll::fit()), cx, |s| {
             s.move_heads_with(|map, head, goal| {
-                movement::down(map, head, goal, false, &text_layout_details)
+                movement::down(map, head, goal, false, text_layout_details)
             })
         });
     }
@@ -7919,12 +7910,12 @@ impl Editor {
                     let query_match = query_match.unwrap(); // can only fail due to I/O
                     let offset_range =
                         start_offset + query_match.start()..start_offset + query_match.end();
-                    let display_range = offset_range.start.to_display_point(&display_map)
-                        ..offset_range.end.to_display_point(&display_map);
+                    let display_range = offset_range.start.to_display_point(display_map)
+                        ..offset_range.end.to_display_point(display_map);
 
                     if !select_next_state.wordwise
-                        || (!movement::is_inside_word(&display_map, display_range.start)
-                            && !movement::is_inside_word(&display_map, display_range.end))
+                        || (!movement::is_inside_word(display_map, display_range.start)
+                            && !movement::is_inside_word(display_map, display_range.end))
                     {
                         // TODO: This is n^2, because we might check all the selections
                         if !selections
@@ -7988,11 +7979,11 @@ impl Editor {
             if only_carets {
                 for selection in &mut selections {
                     let word_range = movement::surrounding_word(
-                        &display_map,
-                        selection.start.to_display_point(&display_map),
+                        display_map,
+                        selection.start.to_display_point(display_map),
                     );
-                    selection.start = word_range.start.to_offset(&display_map, Bias::Left);
-                    selection.end = word_range.end.to_offset(&display_map, Bias::Left);
+                    selection.start = word_range.start.to_offset(display_map, Bias::Left);
+                    selection.end = word_range.end.to_offset(display_map, Bias::Left);
                     selection.goal = SelectionGoal::None;
                     selection.reversed = false;
                     select_next_match_ranges(
@@ -8525,7 +8516,7 @@ impl Editor {
                         let display_point = point.to_display_point(display_snapshot);
                         let goal = SelectionGoal::HorizontalPosition(
                             display_snapshot
-                                .x_for_display_point(display_point, &text_layout_details)
+                                .x_for_display_point(display_point, text_layout_details)
                                 .into(),
                         );
                         (display_point, goal)
@@ -8550,8 +8541,8 @@ impl Editor {
             let cursor = selection.head();
             let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
             for symbol in symbols.iter().rev() {
-                let start = symbol.range.start.to_offset(&buffer_snap);
-                let end = symbol.range.end.to_offset(&buffer_snap);
+                let start = symbol.range.start.to_offset(buffer_snap);
+                let end = symbol.range.end.to_offset(buffer_snap);
                 let new_range = start..end;
                 if start < selection.start || end > selection.end {
                     return Some(Selection {
@@ -8836,12 +8827,10 @@ impl Editor {
                             } else {
                                 open.start
                             }
-                        } else {
-                            if inside {
+                        } else if inside {
                             *close.start()
                         } else {
                             *close.end()
-                            }
                         },
                     );
                 }
@@ -8912,7 +8901,7 @@ impl Editor {
         self.buffer.update(cx, |buffer, cx| {
             buffer.expand_excerpts(
                 selections
-                    .into_iter()
+                    .iter()
                     .map(|selection| selection.head().excerpt_id)
                     .dedup(),
                 lines,
@@ -9109,7 +9098,7 @@ impl Editor {
     ) -> bool {
         let display_point = initial_point.to_display_point(snapshot);
         let mut hunks = hunks
-            .map(|hunk| diff_hunk_to_display(&hunk, &snapshot))
+            .map(|hunk| diff_hunk_to_display(&hunk, snapshot))
             .filter(|hunk| is_wrapped || !hunk.contains_display_row(display_point.row()))
             .dedup();
 
@@ -9790,9 +9779,10 @@ impl Editor {
                         }
                         editor
                     });
-                    cx.subscribe(&rename_editor, |_, _, e, cx| match e {
-                        EditorEvent::Focused => cx.emit(EditorEvent::FocusedIn),
-                        _ => {}
+                    cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
+                        if e == &EditorEvent::Focused {
+                            cx.emit(EditorEvent::FocusedIn)
+                        }
                     })
                     .detach();
 
@@ -10579,9 +10569,7 @@ impl Editor {
 
     pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
         let settings = self.buffer.read(cx).settings_at(0, cx);
-        let mode = self
-            .soft_wrap_mode_override
-            .unwrap_or_else(|| settings.soft_wrap);
+        let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
         match mode {
             language_settings::SoftWrap::None => SoftWrap::None,
             language_settings::SoftWrap::PreferLine => SoftWrap::PreferLine,
@@ -11046,8 +11034,8 @@ impl Editor {
             highlight
                 .range
                 .start()
-                .cmp(&rows.start(), &snapshot)
-                .then(highlight.range.end().cmp(&rows.end(), &snapshot))
+                .cmp(rows.start(), &snapshot)
+                .then(highlight.range.end().cmp(rows.end(), &snapshot))
         });
         match (color, existing_highlight_index) {
             (Some(_), Ok(ix)) | (_, Err(ix)) => row_highlights.insert(
@@ -11126,7 +11114,7 @@ impl Editor {
                 if highlight.color.is_none() || !highlight.should_autoscroll {
                     return None;
                 }
-                Some(highlight.range.start().to_display_point(&snapshot).row())
+                Some(highlight.range.start().to_display_point(snapshot).row())
             })
             .min()
     }
@@ -11300,8 +11288,8 @@ impl Editor {
                     break;
                 }
 
-                let start = range.start.to_display_point(&display_snapshot);
-                let end = range.end.to_display_point(&display_snapshot);
+                let start = range.start.to_display_point(display_snapshot);
+                let end = range.end.to_display_point(display_snapshot);
                 results.push((start..end, color))
             }
         }
@@ -11413,8 +11401,8 @@ impl Editor {
                     break;
                 }
 
-                let start = range.start.to_display_point(&display_snapshot);
-                let end = range.end.to_display_point(&display_snapshot);
+                let start = range.start.to_display_point(display_snapshot);
+                let end = range.end.to_display_point(display_snapshot);
                 results.push((start..end, color))
             }
         }
@@ -12168,8 +12156,8 @@ fn hunks_for_selections(
     let buffer_rows_for_selections = selections.iter().map(|selection| {
         let head = selection.head();
         let tail = selection.tail();
-        let start = MultiBufferRow(tail.to_point(&multi_buffer_snapshot).row);
-        let end = MultiBufferRow(head.to_point(&multi_buffer_snapshot).row);
+        let start = MultiBufferRow(tail.to_point(multi_buffer_snapshot).row);
+        let end = MultiBufferRow(head.to_point(multi_buffer_snapshot).row);
         if start > end {
             end..start
         } else {
@@ -12349,10 +12337,7 @@ fn snippet_completions(
                     filter_range: 0..matching_prefix.len(),
                 },
                 server_id: LanguageServerId(usize::MAX),
-                documentation: snippet
-                    .description
-                    .clone()
-                    .map(|description| Documentation::SingleLine(description)),
+                documentation: snippet.description.clone().map(Documentation::SingleLine),
                 lsp_completion: lsp::CompletionItem {
                     label: snippet.prefix.first().unwrap().clone(),
                     kind: Some(CompletionItemKind::SNIPPET),
@@ -12390,7 +12375,7 @@ impl CompletionProvider for Model<Project> {
     ) -> Task<Result<Vec<Completion>>> {
         self.update(cx, |project, cx| {
             let snippets = snippet_completions(project, buffer, buffer_position, cx);
-            let project_completions = project.completions(&buffer, buffer_position, options, cx);
+            let project_completions = project.completions(buffer, buffer_position, options, cx);
             cx.background_executor().spawn(async move {
                 let mut completions = project_completions.await?;
                 //let snippets = snippets.into_iter().;
@@ -12847,7 +12832,7 @@ impl ViewInputHandler for Editor {
 
     fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
         let snapshot = self.buffer.read(cx).read(cx);
-        let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
+        let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
         Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
     }
 
@@ -13276,7 +13261,7 @@ pub fn highlight_diagnostic_message(
     let mut code_ranges = Vec::new();
 
     if let Some(source) = &diagnostic.source {
-        text_without_backticks.push_str(&source);
+        text_without_backticks.push_str(source);
         code_ranges.push(0..source.len());
         text_without_backticks.push_str(": ");
     }
@@ -13415,7 +13400,7 @@ pub trait RangeToAnchorExt: Sized {
 
     fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
         let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
-        anchor_range.start.to_display_point(&snapshot)..anchor_range.end.to_display_point(&snapshot)
+        anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
     }
 }
 

crates/editor/src/editor_settings_controls.rs

@@ -14,6 +14,12 @@ use crate::EditorSettings;
 #[derive(IntoElement)]
 pub struct EditorSettingsControls {}
 
+impl Default for EditorSettingsControls {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl EditorSettingsControls {
     pub fn new() -> Self {
         Self {}
@@ -235,13 +241,7 @@ impl EditableSettingControl for BufferFontLigaturesControl {
         let mut features = settings
             .buffer_font_features
             .as_ref()
-            .map(|features| {
-                features
-                    .tag_value_list()
-                    .into_iter()
-                    .cloned()
-                    .collect::<Vec<_>>()
-            })
+            .map(|features| features.tag_value_list().to_vec())
             .unwrap_or_default();
 
         if let Some(calt_index) = features.iter().position(|(tag, _)| tag == "calt") {

crates/editor/src/editor_tests.rs

@@ -195,7 +195,7 @@ fn test_undo_redo_with_selection_restoration(cx: &mut TestAppContext) {
         editor.change_selections(None, cx, |s| s.select_ranges([2..2]));
 
         // Simulate an edit in another editor
-        _ = buffer.update(cx, |buffer, cx| {
+        buffer.update(cx, |buffer, cx| {
             buffer.start_transaction_at(now, cx);
             buffer.edit([(0..1, "a")], None, cx);
             buffer.edit([(1..1, "b")], None, cx);
@@ -661,7 +661,7 @@ async fn test_navigation_history(cx: &mut TestAppContext) {
             let buffer = MultiBuffer::build_simple(&sample_text(300, 5, 'a'), cx);
             let mut editor = build_editor(buffer.clone(), cx);
             let handle = cx.view();
-            editor.set_nav_history(Some(pane.read(cx).nav_history_for_item(&handle)));
+            editor.set_nav_history(Some(pane.read(cx).nav_history_for_item(handle)));
 
             fn pop_history(editor: &mut Editor, cx: &mut WindowContext) -> Option<NavigationEntry> {
                 editor.nav_history.as_mut().unwrap().pop_backward(cx)
@@ -1088,7 +1088,7 @@ fn test_move_cursor(cx: &mut TestAppContext) {
     let buffer = cx.update(|cx| MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx));
     let view = cx.add_window(|cx| build_editor(buffer.clone(), cx));
 
-    _ = buffer.update(cx, |buffer, cx| {
+    buffer.update(cx, |buffer, cx| {
         buffer.edit(
             vec![
                 (Point::new(1, 0)..Point::new(1, 0), "\t"),
@@ -1822,7 +1822,7 @@ async fn test_scroll_page_up_page_down(cx: &mut gpui::TestAppContext) {
     cx.simulate_window_resize(window, size(px(1000.), 4. * line_height + px(0.5)));
 
     cx.set_state(
-        &r#"ˇone
+        r#"ˇone
         two
         three
         four
@@ -1886,7 +1886,7 @@ async fn test_autoscroll(cx: &mut gpui::TestAppContext) {
     cx.simulate_window_resize(window, size(px(1000.), 6. * line_height));
 
     cx.set_state(
-        &r#"ˇone
+        r#"ˇone
             two
             three
             four
@@ -4650,17 +4650,8 @@ let foo = «2ˇ»;"#,
 async fn test_select_previous_multibuffer(cx: &mut gpui::TestAppContext) {
     init_test(cx, |_| {});
 
-    let mut cx = EditorTestContext::new_multibuffer(
-        cx,
-        [
-            &indoc! {
-                "aaa\n«bbb\nccc\n»ddd"
-            },
-            &indoc! {
-                "aaa\n«bbb\nccc\n»ddd"
-            },
-        ],
-    );
+    let mut cx =
+        EditorTestContext::new_multibuffer(cx, ["aaa\n«bbb\nccc\n»ddd", "aaa\n«bbb\nccc\n»ddd"]);
 
     cx.assert_editor_state(indoc! {"
         ˇbbb
@@ -4809,7 +4800,7 @@ async fn test_select_larger_smaller_syntax_node(cx: &mut gpui::TestAppContext) {
     let (editor, cx) = cx.add_window_view(|cx| build_editor(buffer, cx));
 
     editor
-        .condition::<crate::EditorEvent>(&cx, |view, cx| !view.buffer.read(cx).is_parsing(cx))
+        .condition::<crate::EditorEvent>(cx, |view, cx| !view.buffer.read(cx).is_parsing(cx))
         .await;
 
     editor.update(cx, |view, cx| {
@@ -5021,7 +5012,7 @@ async fn test_autoindent_selections(cx: &mut gpui::TestAppContext) {
         .condition::<crate::EditorEvent>(cx, |editor, cx| !editor.buffer.read(cx).is_parsing(cx))
         .await;
 
-    _ = editor.update(cx, |editor, cx| {
+    editor.update(cx, |editor, cx| {
         editor.change_selections(None, cx, |s| s.select_ranges([5..5, 8..8, 9..9]));
         editor.newline(&Newline, cx);
         assert_eq!(editor.text(cx), "fn a(\n    \n) {\n    \n}\n");
@@ -5702,7 +5693,7 @@ async fn test_surround_with_pair(cx: &mut gpui::TestAppContext) {
     view.condition::<crate::EditorEvent>(cx, |view, cx| !view.buffer.read(cx).is_parsing(cx))
         .await;
 
-    _ = view.update(cx, |view, cx| {
+    view.update(cx, |view, cx| {
         view.change_selections(None, cx, |s| {
             s.select_display_ranges([
                 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(0), 1),
@@ -5852,7 +5843,7 @@ async fn test_delete_autoclose_pair(cx: &mut gpui::TestAppContext) {
         .condition::<crate::EditorEvent>(cx, |view, cx| !view.buffer.read(cx).is_parsing(cx))
         .await;
 
-    _ = editor.update(cx, |editor, cx| {
+    editor.update(cx, |editor, cx| {
         editor.change_selections(None, cx, |s| {
             s.select_ranges([
                 Point::new(0, 1)..Point::new(0, 1),
@@ -6042,7 +6033,7 @@ async fn test_auto_replace_emoji_shortcode(cx: &mut gpui::TestAppContext) {
         .condition::<crate::EditorEvent>(cx, |view, cx| !view.buffer.read(cx).is_parsing(cx))
         .await;
 
-    _ = editor.update(cx, |editor, cx| {
+    editor.update(cx, |editor, cx| {
         editor.set_auto_replace_emoji_shortcode(true);
 
         editor.handle_input("Hello ", cx);
@@ -6111,7 +6102,7 @@ async fn test_snippets(cx: &mut gpui::TestAppContext) {
     let buffer = cx.update(|cx| MultiBuffer::build_simple(&text, cx));
     let (editor, cx) = cx.add_window_view(|cx| build_editor(buffer, cx));
 
-    _ = editor.update(cx, |editor, cx| {
+    editor.update(cx, |editor, cx| {
         let snippet = Snippet::parse("f(${1:one}, ${2:two}, ${1:three})$0").unwrap();
 
         editor
@@ -6738,7 +6729,7 @@ async fn test_document_format_manual_trigger(cx: &mut gpui::TestAppContext) {
 
     let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
     let (editor, cx) = cx.add_window_view(|cx| build_editor(buffer, cx));
-    _ = editor.update(cx, |editor, cx| editor.set_text("one\ntwo\nthree\n", cx));
+    editor.update(cx, |editor, cx| editor.set_text("one\ntwo\nthree\n", cx));
 
     let format = editor
         .update(cx, |editor, cx| {
@@ -6766,7 +6757,7 @@ async fn test_document_format_manual_trigger(cx: &mut gpui::TestAppContext) {
         "one, two\nthree\n"
     );
 
-    _ = editor.update(cx, |editor, cx| editor.set_text("one\ntwo\nthree\n", cx));
+    editor.update(cx, |editor, cx| editor.set_text("one\ntwo\nthree\n", cx));
     // Ensure we don't lock if formatting hangs.
     fake_server.handle_request::<lsp::request::Formatting, _, _>(move |params, _| async move {
         assert_eq!(
@@ -7765,7 +7756,7 @@ async fn test_completion(cx: &mut gpui::TestAppContext) {
     handle_resolve_completion_request(&mut cx, None).await;
     apply_additional_edits.await.unwrap();
 
-    _ = cx.update(|cx| {
+    cx.update(|cx| {
         cx.update_global::<SettingsStore, _>(|settings, cx| {
             settings.update_user_settings::<EditorSettings>(cx, |settings| {
                 settings.show_completions_on_input = Some(false);
@@ -8371,7 +8362,7 @@ fn test_editing_disjoint_excerpts(cx: &mut TestAppContext) {
     });
 
     let (view, cx) = cx.add_window_view(|cx| build_editor(multibuffer, cx));
-    _ = view.update(cx, |view, cx| {
+    view.update(cx, |view, cx| {
         assert_eq!(view.text(cx), "aaaa\nbbbb");
         view.change_selections(None, cx, |s| {
             s.select_ranges([
@@ -8441,7 +8432,7 @@ fn test_editing_overlapping_excerpts(cx: &mut TestAppContext) {
     });
 
     let (view, cx) = cx.add_window_view(|cx| build_editor(multibuffer, cx));
-    _ = view.update(cx, |view, cx| {
+    view.update(cx, |view, cx| {
         let (expected_text, selection_ranges) = marked_text_ranges(
             indoc! {"
                 aaaa
@@ -8545,7 +8536,7 @@ fn test_refresh_selections(cx: &mut TestAppContext) {
         );
     });
 
-    _ = multibuffer.update(cx, |multibuffer, cx| {
+    multibuffer.update(cx, |multibuffer, cx| {
         multibuffer.remove_excerpts([excerpt1_id.unwrap()], cx);
     });
     _ = editor.update(cx, |editor, cx| {
@@ -8612,7 +8603,7 @@ fn test_refresh_selections_while_selecting_with_mouse(cx: &mut TestAppContext) {
         editor
     });
 
-    _ = multibuffer.update(cx, |multibuffer, cx| {
+    multibuffer.update(cx, |multibuffer, cx| {
         multibuffer.remove_excerpts([excerpt1_id.unwrap()], cx);
     });
     _ = editor.update(cx, |editor, cx| {
@@ -8679,7 +8670,7 @@ async fn test_extra_newline_insertion(cx: &mut gpui::TestAppContext) {
     view.condition::<crate::EditorEvent>(cx, |view, cx| !view.buffer.read(cx).is_parsing(cx))
         .await;
 
-    _ = view.update(cx, |view, cx| {
+    view.update(cx, |view, cx| {
         view.change_selections(None, cx, |s| {
             s.select_display_ranges([
                 DisplayPoint::new(DisplayRow(0), 2)..DisplayPoint::new(DisplayRow(0), 3),
@@ -8864,7 +8855,7 @@ async fn test_following(cx: &mut gpui::TestAppContext) {
     _ = follower.update(cx, |follower, cx| {
         assert_eq!(follower.selections.ranges(cx), vec![1..1]);
     });
-    assert_eq!(*is_still_following.borrow(), true);
+    assert!(*is_still_following.borrow());
     assert_eq!(*follower_edit_event_count.borrow(), 0);
 
     // Update the scroll position only
@@ -8884,7 +8875,7 @@ async fn test_following(cx: &mut gpui::TestAppContext) {
             .unwrap(),
         gpui::Point::new(1.5, 3.5)
     );
-    assert_eq!(*is_still_following.borrow(), true);
+    assert!(*is_still_following.borrow());
     assert_eq!(*follower_edit_event_count.borrow(), 0);
 
     // Update the selections and scroll position. The follower's scroll position is updated
@@ -8905,7 +8896,7 @@ async fn test_following(cx: &mut gpui::TestAppContext) {
         assert_eq!(follower.scroll_position(cx), gpui::Point::new(1.5, 0.0));
         assert_eq!(follower.selections.ranges(cx), vec![0..0]);
     });
-    assert_eq!(*is_still_following.borrow(), true);
+    assert!(*is_still_following.borrow());
 
     // Creating a pending selection that precedes another selection
     _ = leader.update(cx, |leader, cx| {
@@ -8922,7 +8913,7 @@ async fn test_following(cx: &mut gpui::TestAppContext) {
     _ = follower.update(cx, |follower, cx| {
         assert_eq!(follower.selections.ranges(cx), vec![0..0, 1..1]);
     });
-    assert_eq!(*is_still_following.borrow(), true);
+    assert!(*is_still_following.borrow());
 
     // Extend the pending selection so that it surrounds another selection
     _ = leader.update(cx, |leader, cx| {
@@ -8950,7 +8941,7 @@ async fn test_following(cx: &mut gpui::TestAppContext) {
             cx,
         );
     });
-    assert_eq!(*is_still_following.borrow(), false);
+    assert!(!(*is_still_following.borrow()));
 }
 
 #[gpui::test]
@@ -9011,7 +9002,7 @@ async fn test_following_with_multiple_excerpts(cx: &mut gpui::TestAppContext) {
     });
 
     // Insert some excerpts.
-    _ = leader.update(cx, |leader, cx| {
+    leader.update(cx, |leader, cx| {
         leader.buffer.update(cx, |multibuffer, cx| {
             let excerpt_ids = multibuffer.push_excerpts(
                 buffer_1.clone(),
@@ -9086,7 +9077,7 @@ async fn test_following_with_multiple_excerpts(cx: &mut gpui::TestAppContext) {
     );
 
     // Remove some excerpts.
-    _ = leader.update(cx, |leader, cx| {
+    leader.update(cx, |leader, cx| {
         leader.buffer.update(cx, |multibuffer, cx| {
             let excerpt_ids = multibuffer.excerpt_ids();
             multibuffer.remove_excerpts([excerpt_ids[1], excerpt_ids[2]], cx);
@@ -9129,8 +9120,8 @@ async fn go_to_prev_overlapping_diagnostic(
         }
     "});
 
-    _ = cx.update(|cx| {
-        _ = project.update(cx, |project, cx| {
+    cx.update(|cx| {
+        project.update(cx, |project, cx| {
             project
                 .update_diagnostics(
                     LanguageServerId(0),
@@ -9568,7 +9559,7 @@ async fn test_on_type_formatting_not_triggered(cx: &mut gpui::TestAppContext) {
 
     cx.executor().run_until_parked();
 
-    _ = buffer.update(cx, |buffer, _| {
+    buffer.update(cx, |buffer, _| {
         assert_eq!(
             buffer.text(),
             "fn main() { let a = {5}; }",
@@ -9971,7 +9962,7 @@ async fn test_document_format_with_prettier(cx: &mut gpui::TestAppContext) {
     let buffer_text = "one\ntwo\nthree\n";
     let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
     let (editor, cx) = cx.add_window_view(|cx| build_editor(buffer, cx));
-    _ = editor.update(cx, |editor, cx| editor.set_text(buffer_text, cx));
+    editor.update(cx, |editor, cx| editor.set_text(buffer_text, cx));
 
     editor
         .update(cx, |editor, cx| {
@@ -10913,7 +10904,7 @@ async fn test_toggle_hunk_diff(executor: BackgroundExecutor, cx: &mut gpui::Test
     cx.update_editor(|editor, cx| {
         let snapshot = editor.snapshot(cx);
         let all_hunks = editor_hunks(editor, &snapshot, cx);
-        let all_expanded_hunks = expanded_hunks(&editor, &snapshot, cx);
+        let all_expanded_hunks = expanded_hunks(editor, &snapshot, cx);
         assert_eq!(
             expanded_hunks_background_highlights(editor, cx),
             vec![DisplayRow(1)..=DisplayRow(1), DisplayRow(7)..=DisplayRow(7), DisplayRow(9)..=DisplayRow(9)],
@@ -11058,7 +11049,7 @@ async fn test_toggled_diff_base_change(
     cx.update_editor(|editor, cx| {
         let snapshot = editor.snapshot(cx);
         let all_hunks = editor_hunks(editor, &snapshot, cx);
-        let all_expanded_hunks = expanded_hunks(&editor, &snapshot, cx);
+        let all_expanded_hunks = expanded_hunks(editor, &snapshot, cx);
         assert_eq!(
             expanded_hunks_background_highlights(editor, cx),
             vec![DisplayRow(9)..=DisplayRow(10), DisplayRow(13)..=DisplayRow(14)],
@@ -11240,7 +11231,7 @@ async fn test_fold_unfold_diff(executor: BackgroundExecutor, cx: &mut gpui::Test
     cx.update_editor(|editor, cx| {
         let snapshot = editor.snapshot(cx);
         let all_hunks = editor_hunks(editor, &snapshot, cx);
-        let all_expanded_hunks = expanded_hunks(&editor, &snapshot, cx);
+        let all_expanded_hunks = expanded_hunks(editor, &snapshot, cx);
         assert_eq!(
             expanded_hunks_background_highlights(editor, cx),
             vec![
@@ -11317,7 +11308,7 @@ async fn test_fold_unfold_diff(executor: BackgroundExecutor, cx: &mut gpui::Test
     cx.update_editor(|editor, cx| {
         let snapshot = editor.snapshot(cx);
         let all_hunks = editor_hunks(editor, &snapshot, cx);
-        let all_expanded_hunks = expanded_hunks(&editor, &snapshot, cx);
+        let all_expanded_hunks = expanded_hunks(editor, &snapshot, cx);
         assert_eq!(
             expanded_hunks_background_highlights(editor, cx),
             vec![DisplayRow(0)..=DisplayRow(0), DisplayRow(5)..=DisplayRow(5)],
@@ -11410,7 +11401,7 @@ async fn test_fold_unfold_diff(executor: BackgroundExecutor, cx: &mut gpui::Test
     cx.update_editor(|editor, cx| {
         let snapshot = editor.snapshot(cx);
         let all_hunks = editor_hunks(editor, &snapshot, cx);
-        let all_expanded_hunks = expanded_hunks(&editor, &snapshot, cx);
+        let all_expanded_hunks = expanded_hunks(editor, &snapshot, cx);
         assert_eq!(
             expanded_hunks_background_highlights(editor, cx),
             vec![
@@ -11622,7 +11613,7 @@ async fn test_toggle_diff_expand_in_multi_buffer(cx: &mut gpui::TestAppContext)
     multi_buffer_editor.update(cx, |editor, cx| {
         let snapshot = editor.snapshot(cx);
         let all_hunks = editor_hunks(editor, &snapshot, cx);
-        let all_expanded_hunks = expanded_hunks(&editor, &snapshot, cx);
+        let all_expanded_hunks = expanded_hunks(editor, &snapshot, cx);
         assert_eq!(expanded_hunks_background_highlights(editor, cx), Vec::new());
         assert_eq!(all_hunks, expected_all_hunks);
         assert_eq!(all_expanded_hunks, Vec::new());
@@ -11636,7 +11627,7 @@ async fn test_toggle_diff_expand_in_multi_buffer(cx: &mut gpui::TestAppContext)
     multi_buffer_editor.update(cx, |editor, cx| {
         let snapshot = editor.snapshot(cx);
         let all_hunks = editor_hunks(editor, &snapshot, cx);
-        let all_expanded_hunks = expanded_hunks(&editor, &snapshot, cx);
+        let all_expanded_hunks = expanded_hunks(editor, &snapshot, cx);
         assert_eq!(
             expanded_hunks_background_highlights(editor, cx),
             vec![
@@ -11655,7 +11646,7 @@ async fn test_toggle_diff_expand_in_multi_buffer(cx: &mut gpui::TestAppContext)
     multi_buffer_editor.update(cx, |editor, cx| {
         let snapshot = editor.snapshot(cx);
         let all_hunks = editor_hunks(editor, &snapshot, cx);
-        let all_expanded_hunks = expanded_hunks(&editor, &snapshot, cx);
+        let all_expanded_hunks = expanded_hunks(editor, &snapshot, cx);
         assert_eq!(expanded_hunks_background_highlights(editor, cx), Vec::new());
         assert_eq!(all_hunks, expected_all_hunks);
         assert_eq!(all_expanded_hunks, Vec::new());
@@ -11668,7 +11659,7 @@ async fn test_toggle_diff_expand_in_multi_buffer(cx: &mut gpui::TestAppContext)
     multi_buffer_editor.update(cx, |editor, cx| {
         let snapshot = editor.snapshot(cx);
         let all_hunks = editor_hunks(editor, &snapshot, cx);
-        let all_expanded_hunks = expanded_hunks(&editor, &snapshot, cx);
+        let all_expanded_hunks = expanded_hunks(editor, &snapshot, cx);
         assert_eq!(
             expanded_hunks_background_highlights(editor, cx),
             vec![
@@ -11687,7 +11678,7 @@ async fn test_toggle_diff_expand_in_multi_buffer(cx: &mut gpui::TestAppContext)
     multi_buffer_editor.update(cx, |editor, cx| {
         let snapshot = editor.snapshot(cx);
         let all_hunks = editor_hunks(editor, &snapshot, cx);
-        let all_expanded_hunks = expanded_hunks(&editor, &snapshot, cx);
+        let all_expanded_hunks = expanded_hunks(editor, &snapshot, cx);
         assert_eq!(expanded_hunks_background_highlights(editor, cx), Vec::new());
         assert_eq!(all_hunks, expected_all_hunks);
         assert_eq!(all_expanded_hunks, Vec::new());
@@ -11775,7 +11766,7 @@ async fn test_edits_around_toggled_additions(
     cx.update_editor(|editor, cx| {
         let snapshot = editor.snapshot(cx);
         let all_hunks = editor_hunks(editor, &snapshot, cx);
-        let all_expanded_hunks = expanded_hunks(&editor, &snapshot, cx);
+        let all_expanded_hunks = expanded_hunks(editor, &snapshot, cx);
         assert_eq!(
             all_hunks,
             vec![(
@@ -11815,7 +11806,7 @@ async fn test_edits_around_toggled_additions(
     cx.update_editor(|editor, cx| {
         let snapshot = editor.snapshot(cx);
         let all_hunks = editor_hunks(editor, &snapshot, cx);
-        let all_expanded_hunks = expanded_hunks(&editor, &snapshot, cx);
+        let all_expanded_hunks = expanded_hunks(editor, &snapshot, cx);
         assert_eq!(
             all_hunks,
             vec![(
@@ -11860,7 +11851,7 @@ async fn test_edits_around_toggled_additions(
     cx.update_editor(|editor, cx| {
         let snapshot = editor.snapshot(cx);
         let all_hunks = editor_hunks(editor, &snapshot, cx);
-        let all_expanded_hunks = expanded_hunks(&editor, &snapshot, cx);
+        let all_expanded_hunks = expanded_hunks(editor, &snapshot, cx);
         assert_eq!(
             all_hunks,
             vec![(
@@ -11904,7 +11895,7 @@ async fn test_edits_around_toggled_additions(
     cx.update_editor(|editor, cx| {
         let snapshot = editor.snapshot(cx);
         let all_hunks = editor_hunks(editor, &snapshot, cx);
-        let all_expanded_hunks = expanded_hunks(&editor, &snapshot, cx);
+        let all_expanded_hunks = expanded_hunks(editor, &snapshot, cx);
         assert_eq!(
             all_hunks,
             vec![(
@@ -11952,7 +11943,7 @@ async fn test_edits_around_toggled_additions(
     cx.update_editor(|editor, cx| {
         let snapshot = editor.snapshot(cx);
         let all_hunks = editor_hunks(editor, &snapshot, cx);
-        let all_expanded_hunks = expanded_hunks(&editor, &snapshot, cx);
+        let all_expanded_hunks = expanded_hunks(editor, &snapshot, cx);
         assert_eq!(
             all_hunks,
             vec![(
@@ -11988,7 +11979,7 @@ async fn test_edits_around_toggled_additions(
     cx.update_editor(|editor, cx| {
         let snapshot = editor.snapshot(cx);
         let all_hunks = editor_hunks(editor, &snapshot, cx);
-        let all_expanded_hunks = expanded_hunks(&editor, &snapshot, cx);
+        let all_expanded_hunks = expanded_hunks(editor, &snapshot, cx);
         assert_eq!(
             all_hunks,
             vec![
@@ -12103,7 +12094,7 @@ async fn test_edits_around_toggled_deletions(
     cx.update_editor(|editor, cx| {
         let snapshot = editor.snapshot(cx);
         let all_hunks = editor_hunks(editor, &snapshot, cx);
-        let all_expanded_hunks = expanded_hunks(&editor, &snapshot, cx);
+        let all_expanded_hunks = expanded_hunks(editor, &snapshot, cx);
         assert_eq!(expanded_hunks_background_highlights(editor, cx), Vec::new());
         assert_eq!(
             all_hunks,
@@ -12139,7 +12130,7 @@ async fn test_edits_around_toggled_deletions(
     cx.update_editor(|editor, cx| {
         let snapshot = editor.snapshot(cx);
         let all_hunks = editor_hunks(editor, &snapshot, cx);
-        let all_expanded_hunks = expanded_hunks(&editor, &snapshot, cx);
+        let all_expanded_hunks = expanded_hunks(editor, &snapshot, cx);
         assert_eq!(
             expanded_hunks_background_highlights(editor, cx),
             Vec::new(),
@@ -12178,7 +12169,7 @@ async fn test_edits_around_toggled_deletions(
     cx.update_editor(|editor, cx| {
         let snapshot = editor.snapshot(cx);
         let all_hunks = editor_hunks(editor, &snapshot, cx);
-        let all_expanded_hunks = expanded_hunks(&editor, &snapshot, cx);
+        let all_expanded_hunks = expanded_hunks(editor, &snapshot, cx);
         assert_eq!(expanded_hunks_background_highlights(editor, cx), Vec::new());
         assert_eq!(
             all_hunks,
@@ -12213,7 +12204,7 @@ async fn test_edits_around_toggled_deletions(
     cx.update_editor(|editor, cx| {
         let snapshot = editor.snapshot(cx);
         let all_hunks = editor_hunks(editor, &snapshot, cx);
-        let all_expanded_hunks = expanded_hunks(&editor, &snapshot, cx);
+        let all_expanded_hunks = expanded_hunks(editor, &snapshot, cx);
         assert_eq!(
             all_hunks,
             vec![(
@@ -12315,7 +12306,7 @@ async fn test_edits_around_toggled_modifications(
     cx.update_editor(|editor, cx| {
         let snapshot = editor.snapshot(cx);
         let all_hunks = editor_hunks(editor, &snapshot, cx);
-        let all_expanded_hunks = expanded_hunks(&editor, &snapshot, cx);
+        let all_expanded_hunks = expanded_hunks(editor, &snapshot, cx);
         assert_eq!(
             expanded_hunks_background_highlights(editor, cx),
             vec![DisplayRow(6)..=DisplayRow(6)],
@@ -12358,7 +12349,7 @@ async fn test_edits_around_toggled_modifications(
     cx.update_editor(|editor, cx| {
         let snapshot = editor.snapshot(cx);
         let all_hunks = editor_hunks(editor, &snapshot, cx);
-        let all_expanded_hunks = expanded_hunks(&editor, &snapshot, cx);
+        let all_expanded_hunks = expanded_hunks(editor, &snapshot, cx);
         assert_eq!(
             expanded_hunks_background_highlights(editor, cx),
             vec![DisplayRow(6)..=DisplayRow(6)],
@@ -12404,7 +12395,7 @@ async fn test_edits_around_toggled_modifications(
     cx.update_editor(|editor, cx| {
         let snapshot = editor.snapshot(cx);
         let all_hunks = editor_hunks(editor, &snapshot, cx);
-        let all_expanded_hunks = expanded_hunks(&editor, &snapshot, cx);
+        let all_expanded_hunks = expanded_hunks(editor, &snapshot, cx);
         assert_eq!(
             expanded_hunks_background_highlights(editor, cx),
             vec![DisplayRow(6)..=DisplayRow(8)],
@@ -12448,7 +12439,7 @@ async fn test_edits_around_toggled_modifications(
     cx.update_editor(|editor, cx| {
         let snapshot = editor.snapshot(cx);
         let all_hunks = editor_hunks(editor, &snapshot, cx);
-        let all_expanded_hunks = expanded_hunks(&editor, &snapshot, cx);
+        let all_expanded_hunks = expanded_hunks(editor, &snapshot, cx);
         assert_eq!(
             expanded_hunks_background_highlights(editor, cx),
             vec![DisplayRow(6)..=DisplayRow(9)],
@@ -12492,7 +12483,7 @@ async fn test_edits_around_toggled_modifications(
     cx.update_editor(|editor, cx| {
         let snapshot = editor.snapshot(cx);
         let all_hunks = editor_hunks(editor, &snapshot, cx);
-        let all_expanded_hunks = expanded_hunks(&editor, &snapshot, cx);
+        let all_expanded_hunks = expanded_hunks(editor, &snapshot, cx);
         assert_eq!(
             expanded_hunks_background_highlights(editor, cx),
             vec![DisplayRow(6)..=DisplayRow(8)],
@@ -12533,7 +12524,7 @@ async fn test_edits_around_toggled_modifications(
     cx.update_editor(|editor, cx| {
         let snapshot = editor.snapshot(cx);
         let all_hunks = editor_hunks(editor, &snapshot, cx);
-        let all_expanded_hunks = expanded_hunks(&editor, &snapshot, cx);
+        let all_expanded_hunks = expanded_hunks(editor, &snapshot, cx);
         assert_eq!(
             expanded_hunks_background_highlights(editor, cx),
             Vec::new(),
@@ -12636,7 +12627,7 @@ async fn test_multiple_expanded_hunks_merge(
     cx.update_editor(|editor, cx| {
         let snapshot = editor.snapshot(cx);
         let all_hunks = editor_hunks(editor, &snapshot, cx);
-        let all_expanded_hunks = expanded_hunks(&editor, &snapshot, cx);
+        let all_expanded_hunks = expanded_hunks(editor, &snapshot, cx);
         assert_eq!(
             expanded_hunks_background_highlights(editor, cx),
             vec![DisplayRow(6)..=DisplayRow(6)],
@@ -12689,8 +12680,8 @@ async fn setup_indent_guides_editor(
     let buffer_id = cx.update_editor(|editor, cx| {
         editor.set_text(text, cx);
         let buffer_ids = editor.buffer().read(cx).excerpt_buffer_ids();
-        let buffer_id = buffer_ids[0];
-        buffer_id
+
+        buffer_ids[0]
     });
 
     (buffer_id, cx)
@@ -13249,7 +13240,7 @@ fn test_crease_insertion_and_rendering(cx: &mut TestAppContext) {
 
     let render_args = render_args.lock().take().unwrap();
     assert_eq!(render_args.row, MultiBufferRow(1));
-    assert_eq!(render_args.folded, false);
+    assert!(!render_args.folded);
     assert!(!snapshot.is_line_folded(MultiBufferRow(1)));
 
     cx.update_window(*editor, |_, cx| (render_args.callback)(true, cx))
@@ -13616,7 +13607,7 @@ pub(crate) fn update_test_language_settings(
     cx: &mut TestAppContext,
     f: impl Fn(&mut AllLanguageSettingsContent),
 ) {
-    _ = cx.update(|cx| {
+    cx.update(|cx| {
         SettingsStore::update_global(cx, |store, cx| {
             store.update_user_settings::<AllLanguageSettings>(cx, f);
         });
@@ -13627,7 +13618,7 @@ pub(crate) fn update_test_project_settings(
     cx: &mut TestAppContext,
     f: impl Fn(&mut ProjectSettings),
 ) {
-    _ = cx.update(|cx| {
+    cx.update(|cx| {
         SettingsStore::update_global(cx, |store, cx| {
             store.update_user_settings::<ProjectSettings>(cx, f);
         });
@@ -13635,7 +13626,7 @@ pub(crate) fn update_test_project_settings(
 }
 
 pub(crate) fn init_test(cx: &mut TestAppContext, f: fn(&mut AllLanguageSettingsContent)) {
-    _ = cx.update(|cx| {
+    cx.update(|cx| {
         assets::Assets.load_test_fonts(cx);
         let store = SettingsStore::test(cx);
         cx.set_global(store);

crates/editor/src/element.rs

@@ -241,7 +241,7 @@ impl EditorElement {
             if text.is_empty() {
                 return;
             }
-            editor.handle_input(&text, cx);
+            editor.handle_input(text, cx);
         });
         register_action(view, cx, |editor, _: &HalfPageUp, cx| {
             editor.scroll_screen(&ScrollAmount::Page(-0.5), cx)
@@ -652,31 +652,12 @@ impl EditorElement {
             cx.stop_propagation();
         } else if end_selection && pending_nonempty_selections {
             cx.stop_propagation();
-        } else if cfg!(target_os = "linux") && event.button == MouseButton::Middle {
-            if !text_hitbox.is_hovered(cx) || editor.read_only(cx) {
+        } else if cfg!(target_os = "linux")
+            && event.button == MouseButton::Middle
+            && (!text_hitbox.is_hovered(cx) || editor.read_only(cx))
+        {
             return;
         }
-
-            #[cfg(target_os = "linux")]
-            if EditorSettings::get_global(cx).middle_click_paste {
-                if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
-                    let point_for_position =
-                        position_map.point_for_position(text_hitbox.bounds, event.position);
-                    let position = point_for_position.previous_valid;
-
-                    editor.select(
-                        SelectPhase::Begin {
-                            position,
-                            add: false,
-                            click_count: 1,
-                        },
-                        cx,
-                    );
-                    editor.insert(&text, cx);
-                }
-                cx.stop_propagation()
-            }
-        }
     }
 
     fn mouse_dragged(
@@ -1315,7 +1296,7 @@ impl EditorElement {
                     let hitbox = match hunk {
                         DisplayDiffHunk::Unfolded { .. } => {
                             let hunk_bounds = Self::diff_hunk_bounds(
-                                &snapshot,
+                                snapshot,
                                 line_height,
                                 gutter_hitbox.bounds,
                                 &hunk,
@@ -1610,7 +1591,7 @@ impl EditorElement {
                         .tasks
                         .as_ref()
                         .map(|tasks| tasks.position.to_display_point(snapshot).row())
-                        .or_else(|| *deployed_from_indicator)
+                        .or(*deployed_from_indicator)
                 } else {
                     None
                 };
@@ -2794,7 +2775,7 @@ impl EditorElement {
         let hover_popovers = self.editor.update(cx, |editor, cx| {
             editor
                 .hover_state
-                .render(&snapshot, visible_display_row_range.clone(), max_size, cx)
+                .render(snapshot, visible_display_row_range.clone(), max_size, cx)
         });
         let Some((position, hover_popovers)) = hover_popovers else {
             return;
@@ -3199,7 +3180,7 @@ impl EditorElement {
                             &layout.position_map.snapshot,
                             line_height,
                             layout.gutter_hitbox.bounds,
-                            &hunk,
+                            hunk,
                         );
                         Some((
                             hunk_bounds,
@@ -3454,7 +3435,7 @@ impl EditorElement {
             let corner_radius = 0.15 * layout.position_map.line_height;
 
             for (player_color, selections) in &layout.selections {
-                for selection in selections.into_iter() {
+                for selection in selections.iter() {
                     self.paint_highlighted_range(
                         selection.range.clone(),
                         player_color.selection,
@@ -3772,14 +3753,12 @@ impl EditorElement {
                                     if is_symbol_occurrences {
                                         color.fade_out(0.5);
                                     }
-                                    let marker_row_ranges =
-                                        background_ranges.into_iter().map(|range| {
+                                    let marker_row_ranges = background_ranges.iter().map(|range| {
                                         let display_start = range
                                             .start
                                             .to_display_point(&snapshot.display_snapshot);
-                                            let display_end = range
-                                                .end
-                                                .to_display_point(&snapshot.display_snapshot);
+                                        let display_end =
+                                            range.end.to_display_point(&snapshot.display_snapshot);
                                         ColoredRange {
                                             start: display_start.row(),
                                             end: display_end.row(),
@@ -4608,7 +4587,7 @@ impl LineWithInvisibles {
         }
 
         self.draw_invisibles(
-            &selection_ranges,
+            selection_ranges,
             layout,
             content_origin,
             line_y,
@@ -4661,7 +4640,7 @@ impl LineWithInvisibles {
 
         let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
         match whitespace_setting {
-            ShowWhitespaceSetting::None => return,
+            ShowWhitespaceSetting::None => (),
             ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(cx)),
             ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
                 let invisible_point = DisplayPoint::new(row, start as u32);
@@ -4717,7 +4696,7 @@ impl LineWithInvisibles {
                     last_seen = Some((should_render, end, paint));
                 }
             }
-        };
+        }
     }
 
     pub fn x_for_index(&self, index: usize) -> Pixels {
@@ -5452,7 +5431,7 @@ impl Element for EditorElement {
 
                             let show_code_actions = snapshot
                                 .show_code_actions
-                                .unwrap_or_else(|| gutter_settings.code_actions);
+                                .unwrap_or(gutter_settings.code_actions);
                             if show_code_actions {
                                 let newest_selection_point =
                                     newest_selection_head.to_point(&snapshot.display_snapshot);
@@ -6273,6 +6252,73 @@ fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
     (delta.pow(1.2) / 300.0).into()
 }
 
+pub fn register_action<T: Action>(
+    view: &View<Editor>,
+    cx: &mut WindowContext,
+    listener: impl Fn(&mut Editor, &T, &mut ViewContext<Editor>) + 'static,
+) {
+    let view = view.clone();
+    cx.on_action(TypeId::of::<T>(), move |action, phase, cx| {
+        let action = action.downcast_ref().unwrap();
+        if phase == DispatchPhase::Bubble {
+            view.update(cx, |editor, cx| {
+                listener(editor, action, cx);
+            })
+        }
+    })
+}
+
+fn compute_auto_height_layout(
+    editor: &mut Editor,
+    max_lines: usize,
+    max_line_number_width: Pixels,
+    known_dimensions: Size<Option<Pixels>>,
+    available_width: AvailableSpace,
+    cx: &mut ViewContext<Editor>,
+) -> Option<Size<Pixels>> {
+    let width = known_dimensions.width.or({
+        if let AvailableSpace::Definite(available_width) = available_width {
+            Some(available_width)
+        } else {
+            None
+        }
+    })?;
+    if let Some(height) = known_dimensions.height {
+        return Some(size(width, height));
+    }
+
+    let style = editor.style.as_ref().unwrap();
+    let font_id = cx.text_system().resolve_font(&style.text.font());
+    let font_size = style.text.font_size.to_pixels(cx.rem_size());
+    let line_height = style.text.line_height_in_pixels(cx.rem_size());
+    let em_width = cx
+        .text_system()
+        .typographic_bounds(font_id, font_size, 'm')
+        .unwrap()
+        .size
+        .width;
+
+    let mut snapshot = editor.snapshot(cx);
+    let gutter_dimensions =
+        snapshot.gutter_dimensions(font_id, font_size, em_width, max_line_number_width, cx);
+
+    editor.gutter_dimensions = gutter_dimensions;
+    let text_width = width - gutter_dimensions.width;
+    let overscroll = size(em_width, px(0.));
+
+    let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
+    if editor.set_wrap_width(Some(editor_width), cx) {
+        snapshot = editor.snapshot(cx);
+    }
+
+    let scroll_height = Pixels::from(snapshot.max_point().row().next_row().0) * line_height;
+    let height = scroll_height
+        .max(line_height)
+        .min(line_height * max_lines as f32);
+
+    Some(size(width, height))
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;
@@ -6605,7 +6651,7 @@ mod tests {
         });
 
         let actual_invisibles =
-            collect_invisibles_from_new_editor(cx, EditorMode::Full, &input_text, px(500.0));
+            collect_invisibles_from_new_editor(cx, EditorMode::Full, input_text, px(500.0));
 
         assert_eq!(expected_invisibles, actual_invisibles);
     }
@@ -6730,7 +6776,7 @@ mod tests {
             editor_width.0
         );
         let window = cx.add_window(|cx| {
-            let buffer = MultiBuffer::build_simple(&input_text, cx);
+            let buffer = MultiBuffer::build_simple(input_text, cx);
             Editor::new(editor_mode, buffer, None, true, cx)
         });
         let cx = &mut VisualTestContext::from_window(*window, cx);
@@ -6754,70 +6800,3 @@ mod tests {
             .collect()
     }
 }
-
-pub fn register_action<T: Action>(
-    view: &View<Editor>,
-    cx: &mut WindowContext,
-    listener: impl Fn(&mut Editor, &T, &mut ViewContext<Editor>) + 'static,
-) {
-    let view = view.clone();
-    cx.on_action(TypeId::of::<T>(), move |action, phase, cx| {
-        let action = action.downcast_ref().unwrap();
-        if phase == DispatchPhase::Bubble {
-            view.update(cx, |editor, cx| {
-                listener(editor, action, cx);
-            })
-        }
-    })
-}
-
-fn compute_auto_height_layout(
-    editor: &mut Editor,
-    max_lines: usize,
-    max_line_number_width: Pixels,
-    known_dimensions: Size<Option<Pixels>>,
-    available_width: AvailableSpace,
-    cx: &mut ViewContext<Editor>,
-) -> Option<Size<Pixels>> {
-    let width = known_dimensions.width.or_else(|| {
-        if let AvailableSpace::Definite(available_width) = available_width {
-            Some(available_width)
-        } else {
-            None
-        }
-    })?;
-    if let Some(height) = known_dimensions.height {
-        return Some(size(width, height));
-    }
-
-    let style = editor.style.as_ref().unwrap();
-    let font_id = cx.text_system().resolve_font(&style.text.font());
-    let font_size = style.text.font_size.to_pixels(cx.rem_size());
-    let line_height = style.text.line_height_in_pixels(cx.rem_size());
-    let em_width = cx
-        .text_system()
-        .typographic_bounds(font_id, font_size, 'm')
-        .unwrap()
-        .size
-        .width;
-
-    let mut snapshot = editor.snapshot(cx);
-    let gutter_dimensions =
-        snapshot.gutter_dimensions(font_id, font_size, em_width, max_line_number_width, cx);
-
-    editor.gutter_dimensions = gutter_dimensions;
-    let text_width = width - gutter_dimensions.width;
-    let overscroll = size(em_width, px(0.));
-
-    let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
-    if editor.set_wrap_width(Some(editor_width), cx) {
-        snapshot = editor.snapshot(cx);
-    }
-
-    let scroll_height = Pixels::from(snapshot.max_point().row().next_row().0) * line_height;
-    let height = scroll_height
-        .max(line_height)
-        .min(line_height * max_lines as f32);
-
-    Some(size(width, height))
-}

crates/editor/src/git/blame.rs

@@ -455,7 +455,7 @@ async fn parse_commit_messages(
         .and_then(|remote_url| parse_git_remote_url(provider_registry, remote_url));
 
     for (oid, message) in messages {
-        let parsed_message = parse_markdown(&message, &languages).await;
+        let parsed_message = parse_markdown(&message, languages).await;
 
         let permalink = if let Some((provider, git_remote)) = parsed_remote_url.as_ref() {
             Some(provider.build_commit_permalink(

crates/editor/src/hover_links.rs

@@ -134,7 +134,7 @@ impl Editor {
             }
             None => {
                 update_inlay_link_and_hover_points(
-                    &snapshot,
+                    snapshot,
                     point_for_position,
                     self,
                     modifiers.secondary(),
@@ -490,12 +490,12 @@ pub fn show_link_definition(
             .is_some_and(|d| matches!(d, HoverLink::Url(_)));
 
     if same_kind {
-        if is_cached && (&hovered_link_state.last_trigger_point == &trigger_point)
+        if is_cached && (hovered_link_state.last_trigger_point == trigger_point)
             || hovered_link_state
                 .symbol_range
                 .as_ref()
                 .is_some_and(|symbol_range| {
-                    symbol_range.point_within_range(&trigger_point, &snapshot)
+                    symbol_range.point_within_range(&trigger_point, snapshot)
                 })
         {
             editor.hovered_link_state = Some(hovered_link_state);
@@ -596,7 +596,7 @@ pub fn show_link_definition(
                 if let Some((symbol_range, definitions)) = result {
                     hovered_link_state.links = definitions;
 
-                    let underline_hovered_link = hovered_link_state.links.len() > 0
+                    let underline_hovered_link = !hovered_link_state.links.is_empty()
                         || hovered_link_state.symbol_range.is_some();
 
                     if underline_hovered_link {
@@ -718,7 +718,7 @@ pub(crate) async fn find_file(
 
     let existing_path = project
         .update(cx, |project, cx| {
-            project.resolve_existing_file_path(&candidate_file_path, &buffer, cx)
+            project.resolve_existing_file_path(&candidate_file_path, buffer, cx)
         })
         .ok()?
         .await?;
@@ -1258,7 +1258,7 @@ mod tests {
                     let variable« »= TestStruct;
                 }
             "})
-            .get(0)
+            .first()
             .cloned()
             .unwrap();
         let midpoint = cx.update_editor(|editor, cx| {

crates/editor/src/hover_popover.rs

@@ -74,7 +74,7 @@ pub fn show_keyboard_hover(editor: &mut Editor, cx: &mut ViewContext<Editor>) ->
         }
     }
 
-    return false;
+    false
 }
 
 pub struct InlayHover {
@@ -648,7 +648,7 @@ impl HoverState {
                 }
             }
         }
-        return hover_popover_is_focused;
+        hover_popover_is_focused
     }
 }
 
@@ -1445,7 +1445,7 @@ mod tests {
                     let variable« »= TestNewType(TestStruct);
                 }
         "})
-            .get(0)
+            .first()
             .cloned()
             .unwrap();
         let new_type_hint_part_hover_position = cx.update_editor(|editor, cx| {

crates/editor/src/hunk_diff.rs

@@ -337,8 +337,8 @@ impl Editor {
                         .offset_to_point(hunk.diff_base_byte_range.start)
                         .row;
                     let diff_end_row = diff_base.offset_to_point(hunk.diff_base_byte_range.end).row;
-                    let line_count = diff_end_row - diff_start_row;
-                    line_count
+
+                    diff_end_row - diff_start_row
                 })?;
                 Some((diff_base_buffer, deleted_text_lines))
             } else {
@@ -358,7 +358,7 @@ impl Editor {
 
         let block = match hunk.status {
             DiffHunkStatus::Removed => {
-                self.insert_deleted_text_block(diff_base_buffer, deleted_text_lines, &hunk, cx)
+                self.insert_deleted_text_block(diff_base_buffer, deleted_text_lines, hunk, cx)
             }
             DiffHunkStatus::Added => {
                 self.highlight_rows::<DiffRowHighlight>(
@@ -376,7 +376,7 @@ impl Editor {
                     false,
                     cx,
                 );
-                self.insert_deleted_text_block(diff_base_buffer, deleted_text_lines, &hunk, cx)
+                self.insert_deleted_text_block(diff_base_buffer, deleted_text_lines, hunk, cx)
             }
         };
         self.expanded_hunks.hunks.insert(
@@ -591,7 +591,7 @@ impl Editor {
                                     .to_display_point(&snapshot)
                                     .row();
                             while let Some(buffer_hunk) = recalculated_hunks.peek() {
-                                match diff_hunk_to_display(&buffer_hunk, &snapshot) {
+                                match diff_hunk_to_display(buffer_hunk, &snapshot) {
                                     DisplayDiffHunk::Folded { display_row } => {
                                         recalculated_hunks.next();
                                         if !expanded_hunk.folded
@@ -710,12 +710,12 @@ fn to_diff_hunk(
         .multi_buffer_range
         .start
         .buffer_id
-        .or_else(|| hovered_hunk.multi_buffer_range.end.buffer_id)?;
+        .or(hovered_hunk.multi_buffer_range.end.buffer_id)?;
     let buffer_range = hovered_hunk.multi_buffer_range.start.text_anchor
         ..hovered_hunk.multi_buffer_range.end.text_anchor;
     let point_range = hovered_hunk
         .multi_buffer_range
-        .to_point(&multi_buffer_snapshot);
+        .to_point(multi_buffer_snapshot);
     Some(DiffHunk {
         associated_range: MultiBufferRow(point_range.start.row)
             ..MultiBufferRow(point_range.end.row),

crates/editor/src/inlay_hint_cache.rs

@@ -466,7 +466,7 @@ impl InlayHintCache {
                                             to_insert.push(Inlay::hint(
                                                 cached_hint_id.id(),
                                                 anchor,
-                                                &cached_hint,
+                                                cached_hint,
                                             ));
                                         }
                                     }
@@ -490,7 +490,7 @@ impl InlayHintCache {
                         to_insert.push(Inlay::hint(
                             cached_hint_id.id(),
                             anchor,
-                            &maybe_missed_cached_hint,
+                            maybe_missed_cached_hint,
                         ));
                     }
                 }
@@ -844,7 +844,7 @@ fn new_update_task(
                             .get_mut(&query.excerpt_id)
                         {
                             let buffer_snapshot = excerpt_buffer.read(cx).snapshot();
-                            task_ranges.invalidate_range(&buffer_snapshot, &range);
+                            task_ranges.invalidate_range(&buffer_snapshot, range);
                         }
                     })
                     .ok()
@@ -3424,7 +3424,7 @@ pub mod tests {
 
     pub fn cached_hint_labels(editor: &Editor) -> Vec<String> {
         let mut labels = Vec::new();
-        for (_, excerpt_hints) in &editor.inlay_hint_cache().hints {
+        for excerpt_hints in editor.inlay_hint_cache().hints.values() {
             let excerpt_hints = excerpt_hints.read();
             for id in &excerpt_hints.ordered_hints {
                 labels.push(excerpt_hints.hints_by_id[id].text());

crates/editor/src/items.rs

@@ -356,7 +356,7 @@ async fn update_editor_from_message(
                 .collect::<Vec<_>>();
             removed_excerpt_ids.sort_by({
                 let multibuffer = multibuffer.read(cx);
-                move |a, b| a.cmp(&b, &multibuffer)
+                move |a, b| a.cmp(b, &multibuffer)
             });
 
             let mut insertions = message.inserted_excerpts.into_iter().peekable();
@@ -604,7 +604,7 @@ impl Item for Editor {
                     .and_then(|path| FileIcons::get_icon(path.path.as_ref(), cx))
             })
             .flatten()
-            .map(|icon| Icon::from_path(icon))
+            .map(Icon::from_path)
     }
 
     fn tab_content(&self, params: TabContentParams, cx: &WindowContext) -> AnyElement {
@@ -631,7 +631,7 @@ impl Item for Editor {
                 return None;
             }
 
-            Some(util::truncate_and_trailoff(&description, MAX_TAB_TITLE_LEN))
+            Some(util::truncate_and_trailoff(description, MAX_TAB_TITLE_LEN))
         });
 
         h_flex()
@@ -829,7 +829,7 @@ impl Item for Editor {
         let cursor = self.selections.newest_anchor().head();
         let multibuffer = &self.buffer().read(cx);
         let (buffer_id, symbols) =
-            multibuffer.symbols_containing(cursor, Some(&variant.syntax()), cx)?;
+            multibuffer.symbols_containing(cursor, Some(variant.syntax()), cx)?;
         let buffer = multibuffer.buffer(buffer_id)?;
 
         let buffer = buffer.read(cx);
@@ -1154,7 +1154,7 @@ impl SearchableItem for Editor {
         self.background_highlights
             .get(&TypeId::of::<BufferSearchHighlights>())
             .map_or(Vec::new(), |(_color, ranges)| {
-                ranges.iter().map(|range| range.clone()).collect()
+                ranges.iter().cloned().collect()
             })
     }
 
@@ -1254,7 +1254,7 @@ impl SearchableItem for Editor {
         self.unfold_ranges(matches.to_vec(), false, false, cx);
         let mut ranges = Vec::new();
         for m in matches {
-            ranges.push(self.range_for_match(&m))
+            ranges.push(self.range_for_match(m))
         }
         self.change_selections(None, cx, |s| s.select_ranges(ranges));
     }
@@ -1335,7 +1335,7 @@ impl SearchableItem for Editor {
                     .cmp(&current_index_position, &buffer)
                     .is_gt()
                 {
-                    count = count - 1
+                    count -= 1
                 }
 
                 (current_index + count) % matches.len()
@@ -1346,7 +1346,7 @@ impl SearchableItem for Editor {
                     .cmp(&current_index_position, &buffer)
                     .is_lt()
                 {
-                    count = count - 1;
+                    count -= 1;
                 }
 
                 if current_index >= count {
@@ -1368,7 +1368,7 @@ impl SearchableItem for Editor {
             .background_highlights
             .get(&TypeId::of::<SearchWithinRange>())
             .map_or(vec![], |(_color, ranges)| {
-                ranges.iter().map(|range| range.clone()).collect::<Vec<_>>()
+                ranges.iter().cloned().collect::<Vec<_>>()
             });
 
         cx.background_executor().spawn(async move {
@@ -1411,7 +1411,7 @@ impl SearchableItem for Editor {
                     if !search_range.is_empty() {
                         ranges.extend(
                             query
-                                .search(&search_buffer, Some(search_range.clone()))
+                                .search(search_buffer, Some(search_range.clone()))
                                 .await
                                 .into_iter()
                                 .map(|match_range| {

crates/editor/src/linked_editing_ranges.rs

@@ -73,7 +73,7 @@ pub(super) fn refresh_linked_ranges(this: &mut Editor, cx: &mut ViewContext<Edit
                     let snapshot = buffer.read(cx).snapshot();
                     let buffer_id = buffer.read(cx).remote_id();
 
-                    let linked_edits_task = project.linked_edit(&buffer, *start, cx);
+                    let linked_edits_task = project.linked_edit(buffer, *start, cx);
                     let highlights = move || async move {
                         let edits = linked_edits_task.await.log_err()?;
                         // Find the range containing our current selection.
@@ -87,9 +87,7 @@ pub(super) fn refresh_linked_ranges(this: &mut Editor, cx: &mut ViewContext<Edit
                             range.start.to_point(&snapshot) <= start_point
                                 && range.end.to_point(&snapshot) >= end_point
                         });
-                        if _current_selection_contains_range.is_none() {
-                            return None;
-                        }
+                        _current_selection_contains_range?;
                         // Now link every range as each-others sibling.
                         let mut siblings: HashMap<Range<text::Anchor>, Vec<_>> = Default::default();
                         let mut insert_sorted_anchor =

crates/editor/src/lsp_ext.rs

@@ -23,7 +23,7 @@ where
     editor
         .selections
         .disjoint_anchors()
-        .into_iter()
+        .iter()
         .filter(|selection| selection.start == selection.end)
         .filter_map(|selection| Some((selection.start.buffer_id?, selection.start)))
         .filter_map(|(buffer_id, trigger_anchor)| {

crates/editor/src/mouse_context_menu.rs

@@ -113,7 +113,7 @@ fn display_ranges<'a>(
         .disjoint
         .iter()
         .chain(pending)
-        .map(move |s| s.start.to_display_point(&display_map)..s.end.to_display_point(&display_map))
+        .map(move |s| s.start.to_display_point(display_map)..s.end.to_display_point(display_map))
 }
 
 pub fn deploy_context_menu(

crates/editor/src/movement.rs

@@ -416,7 +416,7 @@ pub fn find_preceding_boundary_point(
     mut is_boundary: impl FnMut(char, char) -> bool,
 ) -> Point {
     let mut prev_ch = None;
-    let mut offset = from.to_offset(&buffer_snapshot);
+    let mut offset = from.to_offset(buffer_snapshot);
 
     for ch in buffer_snapshot.reversed_chars_at(offset) {
         if find_range == FindRange::SingleLine && ch == '\n' {
@@ -432,7 +432,7 @@ pub fn find_preceding_boundary_point(
         prev_ch = Some(ch);
     }
 
-    offset.to_point(&buffer_snapshot)
+    offset.to_point(buffer_snapshot)
 }
 
 /// Scans for a boundary preceding the given start point `from` until a boundary is found,
@@ -466,7 +466,7 @@ pub fn find_boundary_point(
     mut is_boundary: impl FnMut(char, char) -> bool,
     return_point_before_boundary: bool,
 ) -> DisplayPoint {
-    let mut offset = from.to_offset(&map, Bias::Right);
+    let mut offset = from.to_offset(map, Bias::Right);
     let mut prev_offset = offset;
     let mut prev_ch = None;
 
@@ -496,7 +496,7 @@ pub fn find_boundary(
     find_range: FindRange,
     is_boundary: impl FnMut(char, char) -> bool,
 ) -> DisplayPoint {
-    return find_boundary_point(map, from, find_range, is_boundary, false);
+    find_boundary_point(map, from, find_range, is_boundary, false)
 }
 
 pub fn find_boundary_exclusive(
@@ -505,7 +505,7 @@ pub fn find_boundary_exclusive(
     find_range: FindRange,
     is_boundary: impl FnMut(char, char) -> bool,
 ) -> DisplayPoint {
-    return find_boundary_point(map, from, find_range, is_boundary, true);
+    find_boundary_point(map, from, find_range, is_boundary, true)
 }
 
 /// Returns an iterator over the characters following a given offset in the [`DisplaySnapshot`].
@@ -517,7 +517,7 @@ pub fn chars_after(
 ) -> impl Iterator<Item = (char, Range<usize>)> + '_ {
     map.buffer_snapshot.chars_at(offset).map(move |ch| {
         let before = offset;
-        offset = offset + ch.len_utf8();
+        offset += ch.len_utf8();
         (ch, before..offset)
     })
 }
@@ -533,7 +533,7 @@ pub fn chars_before(
         .reversed_chars_at(offset)
         .map(move |ch| {
             let after = offset;
-            offset = offset - ch.len_utf8();
+            offset -= ch.len_utf8();
             (ch, offset..after)
         })
 }

crates/editor/src/persistence.rs

@@ -220,7 +220,6 @@ impl EditorDb {
 #[cfg(test)]
 mod tests {
     use super::*;
-    use gpui;
 
     #[gpui::test]
     async fn test_save_and_get_serialized_editor() {

crates/editor/src/rust_analyzer_ext.rs

@@ -19,7 +19,7 @@ fn is_rust_language(language: &Language) -> bool {
 pub fn apply_related_actions(editor: &View<Editor>, cx: &mut WindowContext) {
     if editor
         .update(cx, |e, cx| {
-            find_specific_language_server_in_selection(e, cx, &is_rust_language, RUST_ANALYZER_NAME)
+            find_specific_language_server_in_selection(e, cx, is_rust_language, RUST_ANALYZER_NAME)
         })
         .is_some()
     {
@@ -44,9 +44,9 @@ pub fn expand_macro_recursively(
 
     let Some((trigger_anchor, rust_language, server_to_query, buffer)) =
         find_specific_language_server_in_selection(
-            &editor,
+            editor,
             cx,
-            &is_rust_language,
+            is_rust_language,
             RUST_ANALYZER_NAME,
         )
     else {

crates/editor/src/scroll.rs

@@ -50,7 +50,7 @@ impl ScrollAnchor {
             scroll_position.y = 0.;
         } else {
             let scroll_top = self.anchor.to_display_point(snapshot).row().as_f32();
-            scroll_position.y = scroll_top + scroll_position.y;
+            scroll_position.y += scroll_top;
         }
         scroll_position
     }
@@ -224,7 +224,7 @@ impl ScrollManager {
             };
 
             let scroll_top_buffer_point =
-                DisplayPoint::new(DisplayRow(scroll_top as u32), 0).to_point(&map);
+                DisplayPoint::new(DisplayRow(scroll_top as u32), 0).to_point(map);
             let top_anchor = map
                 .buffer_snapshot
                 .anchor_at(scroll_top_buffer_point, Bias::Right);
@@ -234,7 +234,7 @@ impl ScrollManager {
                     anchor: top_anchor,
                     offset: point(
                         scroll_position.x.max(0.),
-                        scroll_top - top_anchor.to_display_point(&map).row().as_f32(),
+                        scroll_top - top_anchor.to_display_point(map).row().as_f32(),
                     ),
                 },
                 scroll_top_buffer_point.row,

crates/editor/src/selections_collection.rs

@@ -339,7 +339,7 @@ impl SelectionsCollection {
         let is_empty = positions.start == positions.end;
         let line_len = display_map.line_len(row);
 
-        let line = display_map.layout_row(row, &text_layout_details);
+        let line = display_map.layout_row(row, text_layout_details);
 
         let start_col = line.closest_index_for_x(positions.start) as u32;
         if start_col < line_len || (is_empty && positions.start == line.width) {

crates/editor/src/signature_help.rs

@@ -13,7 +13,7 @@ pub use popover::SignatureHelpPopover;
 pub use state::SignatureHelpState;
 
 // Language-specific settings may define quotes as "brackets", so filter them out separately.
-const QUOTE_PAIRS: [(&'static str, &'static str); 3] = [("'", "'"), ("\"", "\""), ("`", "`")];
+const QUOTE_PAIRS: [(&str, &str); 3] = [("'", "'"), ("\"", "\""), ("`", "`")];
 
 #[derive(Debug, Clone, Copy, PartialEq)]
 pub enum SignatureHelpHiddenBy {
@@ -167,10 +167,10 @@ impl Editor {
                         let language = editor.language_at(position, cx);
                         let project = editor.project.clone()?;
                         let (markdown, language_registry) = {
-                            project.update(cx, |project, mut cx| {
+                            project.update(cx, |project, cx| {
                                 let language_registry = project.languages().clone();
                                 (
-                                    project.signature_help(&buffer, buffer_position, &mut cx),
+                                    project.signature_help(&buffer, buffer_position, cx),
                                     language_registry,
                                 )
                             })

crates/editor/src/test/editor_test_context.rs

@@ -120,8 +120,7 @@ impl EditorTestContext {
     where
         F: FnOnce(&Editor, &ViewContext<Editor>) -> T,
     {
-        self.editor
-            .update(&mut self.cx, |this, cx| read(&this, &cx))
+        self.editor.update(&mut self.cx, |this, cx| read(this, cx))
     }
 
     #[track_caller]
@@ -327,8 +326,8 @@ impl EditorTestContext {
                 .background_highlights
                 .get(&TypeId::of::<Tag>())
                 .map(|h| h.1.clone())
-                .unwrap_or_else(|| Arc::default())
-                .into_iter()
+                .unwrap_or_default()
+                .iter()
                 .map(|range| range.to_offset(&snapshot.buffer_snapshot))
                 .collect()
         });
@@ -424,6 +423,12 @@ pub struct AssertionContextManager {
     contexts: Arc<RwLock<BTreeMap<usize, String>>>,
 }
 
+impl Default for AssertionContextManager {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl AssertionContextManager {
     pub fn new() -> Self {
         Self {

crates/extension/src/extension_builder.rs

@@ -77,7 +77,7 @@ impl ExtensionBuilder {
         extension_manifest: &mut ExtensionManifest,
         options: CompileExtensionOptions,
     ) -> Result<()> {
-        populate_defaults(extension_manifest, &extension_dir)?;
+        populate_defaults(extension_manifest, extension_dir)?;
 
         if extension_dir.is_relative() {
             bail!(
@@ -123,7 +123,7 @@ impl ExtensionBuilder {
         self.install_rust_wasm_target_if_needed()?;
         let adapter_bytes = self.install_wasi_preview1_adapter_if_needed().await?;
 
-        let cargo_toml_content = fs::read_to_string(&extension_dir.join("Cargo.toml"))?;
+        let cargo_toml_content = fs::read_to_string(extension_dir.join("Cargo.toml"))?;
         let cargo_toml: CargoToml = toml::from_str(&cargo_toml_content)?;
 
         log::info!(
@@ -135,7 +135,7 @@ impl ExtensionBuilder {
             .args(options.release.then_some("--release"))
             .arg("--target-dir")
             .arg(extension_dir.join("target"))
-            .current_dir(&extension_dir)
+            .current_dir(extension_dir)
             .output()
             .context("failed to run `cargo`")?;
         if !output.status.success() {
@@ -281,12 +281,12 @@ impl ExtensionBuilder {
                 );
             }
         } else {
-            fs::create_dir_all(&directory).with_context(|| {
+            fs::create_dir_all(directory).with_context(|| {
                 format!("failed to create grammar directory {}", directory.display(),)
             })?;
             let init_output = Command::new("git")
                 .arg("init")
-                .current_dir(&directory)
+                .current_dir(directory)
                 .output()?;
             if !init_output.status.success() {
                 bail!(
@@ -312,15 +312,15 @@ impl ExtensionBuilder {
         let fetch_output = Command::new("git")
             .arg("--git-dir")
             .arg(&git_dir)
-            .args(["fetch", "--depth", "1", "origin", &rev])
+            .args(["fetch", "--depth", "1", "origin", rev])
             .output()
             .context("failed to execute `git fetch`")?;
 
         let checkout_output = Command::new("git")
             .arg("--git-dir")
             .arg(&git_dir)
-            .args(["checkout", &rev])
-            .current_dir(&directory)
+            .args(["checkout", rev])
+            .current_dir(directory)
             .output()
             .context("failed to execute `git checkout`")?;
         if !checkout_output.status.success() {
@@ -488,16 +488,12 @@ impl ExtensionBuilder {
                 _ => {}
             }
 
-            match &payload {
-                CustomSection(c) => {
+            if let CustomSection(c) = &payload {
                 if strip_custom_section(c.name()) {
                     continue;
                 }
             }
 
-                _ => {}
-            }
-
             if let Some((id, range)) = payload.as_section() {
                 RawSection {
                     id,

crates/extension/src/extension_lsp_adapter.rs

@@ -243,7 +243,7 @@ impl LspAdapter for ExtensionLspAdapter {
         language: &Arc<Language>,
     ) -> Result<Vec<Option<CodeLabel>>> {
         let completions = completions
-            .into_iter()
+            .iter()
             .map(|completion| wit::Completion::from(completion.clone()))
             .collect::<Vec<_>>();
 
@@ -276,7 +276,7 @@ impl LspAdapter for ExtensionLspAdapter {
         language: &Arc<Language>,
     ) -> Result<Vec<Option<CodeLabel>>> {
         let symbols = symbols
-            .into_iter()
+            .iter()
             .cloned()
             .map(|(name, kind)| wit::Symbol {
                 name,
@@ -317,7 +317,7 @@ fn labels_from_wit(
             } else {
                 language.highlight_text(&label.code.as_str().into(), 0..label.code.len())
             };
-            build_code_label(&label, &runs, &language)
+            build_code_label(&label, &runs, language)
         })
         .collect()
 }
@@ -364,7 +364,7 @@ fn build_code_label(
                     .grammar()
                     .zip(span.highlight_name.as_ref())
                     .and_then(|(grammar, highlight_name)| {
-                        grammar.highlight_id_for_name(&highlight_name)
+                        grammar.highlight_id_for_name(highlight_name)
                     })
                     .unwrap_or_default();
                 let ix = text.len();

crates/extension/src/extension_store.rs

@@ -290,7 +290,7 @@ impl ExtensionStore {
         // it must be asynchronously rebuilt.
         let mut extension_index = ExtensionIndex::default();
         let mut extension_index_needs_rebuild = true;
-        if let Some(index_content) = index_content.ok() {
+        if let Ok(index_content) = index_content {
             if let Some(index) = serde_json::from_str(&index_content).log_err() {
                 extension_index = index;
                 if let (Ok(Some(index_metadata)), Ok(Some(extensions_metadata))) =
@@ -582,11 +582,11 @@ impl ExtensionStore {
         query: &[(&str, &str)],
         cx: &mut ModelContext<'_, ExtensionStore>,
     ) -> Task<Result<Vec<ExtensionMetadata>>> {
-        let url = self.http_client.build_zed_api_url(path, &query);
+        let url = self.http_client.build_zed_api_url(path, query);
         let http_client = self.http_client.clone();
         cx.spawn(move |_, _| async move {
             let mut response = http_client
-                .get(&url?.as_ref(), AsyncBody::empty(), true)
+                .get(url?.as_ref(), AsyncBody::empty(), true)
                 .await?;
 
             let mut body = Vec::new();
@@ -651,7 +651,7 @@ impl ExtensionStore {
             });
 
             let mut response = http_client
-                .get(&url.as_ref(), Default::default(), true)
+                .get(url.as_ref(), Default::default(), true)
                 .await
                 .map_err(|err| anyhow!("error downloading extension: {}", err))?;
 
@@ -687,15 +687,12 @@ impl ExtensionStore {
             })?
             .await;
 
-            match operation {
-                ExtensionOperation::Install => {
+            if let ExtensionOperation::Install = operation {
                 this.update(&mut cx, |_, cx| {
                     cx.emit(Event::ExtensionInstalled(extension_id));
                 })
                 .ok();
             }
-                _ => {}
-            }
 
             anyhow::Ok(())
         })
@@ -873,10 +870,10 @@ impl ExtensionStore {
                 .await?;
 
             let output_path = &extensions_dir.join(extension_id.as_ref());
-            if let Some(metadata) = fs.metadata(&output_path).await? {
+            if let Some(metadata) = fs.metadata(output_path).await? {
                 if metadata.is_symlink {
                     fs.remove_file(
-                        &output_path,
+                        output_path,
                         RemoveOptions {
                             recursive: false,
                             ignore_if_not_exists: true,
@@ -967,7 +964,7 @@ impl ExtensionStore {
                     (Some(_), None) => {
                         extensions_to_unload.push(old_keys.next().unwrap().0.clone());
                     }
-                    (Some((old_key, _)), Some((new_key, _))) => match old_key.cmp(&new_key) {
+                    (Some((old_key, _)), Some((new_key, _))) => match old_key.cmp(new_key) {
                         Ordering::Equal => {
                             let (old_key, old_value) = old_keys.next().unwrap();
                             let (new_key, new_value) = new_keys.next().unwrap();
@@ -1140,7 +1137,7 @@ impl ExtensionStore {
                     async move {
                         for theme_path in &themes_to_add {
                             theme_registry
-                                .load_user_theme(&theme_path, fs.clone())
+                                .load_user_theme(theme_path, fs.clone())
                                 .await
                                 .log_err();
                         }

crates/extension/src/extension_store_test.rs

@@ -587,12 +587,9 @@ async fn test_extension_store_with_test_extension(cx: &mut TestAppContext) {
     let executor = cx.executor();
     let _task = cx.executor().spawn(async move {
         while let Some(event) = events.next().await {
-            match event {
-                crate::Event::StartedReloading => {
+            if let crate::Event::StartedReloading = event {
                 executor.advance_clock(RELOAD_DEBOUNCE_DURATION);
             }
-                _ => (),
-            }
         }
     });