Cargo fmt

This is just a result of `cargo fix --edition`, without actually bumping the edition just yet.

Cargo.lock

@@ -1910,6 +1910,24 @@ name = "bindgen"
 version = "0.70.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f49d8fed880d473ea71efb9bf597651e77201bdd4893efe54c9e5d65ae04ce6f"
+dependencies = [
+ "bitflags 2.9.0",
+ "cexpr",
+ "clang-sys",
+ "itertools 0.12.1",
+ "proc-macro2",
+ "quote",
+ "regex",
+ "rustc-hash 1.1.0",
+ "shlex",
+ "syn 2.0.100",
+]
+
+[[package]]
+name = "bindgen"
+version = "0.71.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5f58bf3d7db68cfbac37cfc485a8d711e87e064c3d0fe0435b92f7a407f9d6b3"
 dependencies = [
  "bitflags 2.9.0",
  "cexpr",
@@ -1920,7 +1938,7 @@ dependencies = [
  "proc-macro2",
  "quote",
  "regex",
- "rustc-hash 1.1.0",
+ "rustc-hash 2.1.1",
  "shlex",
  "syn 2.0.100",
 ]
@@ -5848,7 +5866,7 @@ dependencies = [
  "ashpd",
  "async-task",
  "backtrace",
- "bindgen 0.70.1",
+ "bindgen 0.71.1",
  "blade-graphics",
  "blade-macros",
  "blade-util",
@@ -8220,7 +8238,7 @@ name = "media"
 version = "0.1.0"
 dependencies = [
  "anyhow",
- "bindgen 0.70.1",
+ "bindgen 0.71.1",
  "core-foundation 0.10.0",
  "core-video",
  "ctor",

crates/activity_indicator/src/activity_indicator.rs

@@ -190,7 +190,7 @@ impl ActivityIndicator {
     fn pending_language_server_work<'a>(
         &self,
         cx: &'a App,
-    ) -> impl Iterator<Item = PendingWork<'a>> {
+    ) -> impl Iterator<Item = PendingWork<'a>> + use<'a> {
         self.project
             .read(cx)
             .language_server_statuses(cx)

crates/askpass/src/askpass.rs

@@ -89,14 +89,16 @@ impl AskPassSession {
                     buffer.clear();
                 }
                 let prompt = String::from_utf8_lossy(&buffer);
-                if let Some(password) = delegate
+                match delegate
                     .ask_password(prompt.to_string())
                     .await
                     .context("failed to get askpass password")
                     .log_err()
                 {
+                    Some(password) => {
                         stream.write_all(password.as_bytes()).await.log_err();
-                } else {
+                    }
+                    _ => {
                         if let Some(kill_tx) = kill_tx.take() {
                             kill_tx.send(()).log_err();
                         }
@@ -107,6 +109,7 @@ impl AskPassSession {
                         drop(stream);
                     }
                 }
+            }
             drop(temp_dir)
         });
 

crates/assistant/src/assistant_panel.rs

@@ -741,20 +741,29 @@ impl AssistantPanel {
                     }
                 });
 
-        if let Some(context_editor) = context_editor {
+        match context_editor {
-            Some(InlineAssistTarget::Editor(context_editor, false))
+            Some(context_editor) => Some(InlineAssistTarget::Editor(context_editor, false)),
-        } else if let Some(workspace_editor) = workspace
+            _ => {
+                match workspace
                     .active_item(cx)
                     .and_then(|item| item.act_as::<Editor>(cx))
                 {
+                    Some(workspace_editor) => {
                         Some(InlineAssistTarget::Editor(workspace_editor, true))
-        } else if let Some(terminal_view) = workspace
+                    }
+                    _ => {
+                        match workspace
                             .active_item(cx)
                             .and_then(|item| item.act_as::<TerminalView>(cx))
                         {
+                            Some(terminal_view) => {
                                 Some(InlineAssistTarget::Terminal(terminal_view))
-        } else {
+                            }
-            None
+                            _ => None,
+                        }
+                    }
+                }
+            }
         }
     }
 

crates/assistant/src/inline_assistant.rs

@@ -250,9 +250,9 @@ impl InlineAssistant {
                 selection.end.column = snapshot
                     .buffer_snapshot
                     .line_len(MultiBufferRow(selection.end.row));
-            } else if let Some(fold) =
+            } else {
-                snapshot.crease_for_buffer_row(MultiBufferRow(selection.end.row))
+                match snapshot.crease_for_buffer_row(MultiBufferRow(selection.end.row)) {
-            {
+                    Some(fold) => {
                         selection.start = fold.range().start;
                         selection.end = fold.range().end;
                         if MultiBufferRow(selection.end.row) < snapshot.buffer_snapshot.max_row() {
@@ -267,10 +267,9 @@ impl InlineAssistant {
                                 if c.is_whitespace() {
                                     continue;
                                 }
-                        if snapshot
+                                if snapshot.language_at(selection.end).is_some_and(|language| {
-                            .language_at(selection.end)
+                                    language.config().brackets.is_closing_brace(c)
-                            .is_some_and(|language| language.config().brackets.is_closing_brace(c))
+                                }) {
-                        {
                                     selection.end.row += 1;
                                     selection.end.column = snapshot
                                         .buffer_snapshot
@@ -279,6 +278,9 @@ impl InlineAssistant {
                             }
                         }
                     }
+                    _ => {}
+                }
+            }
 
             if let Some(prev_selection) = selections.last_mut() {
                 if selection.start <= prev_selection.end {
@@ -1031,7 +1033,8 @@ impl InlineAssistant {
 
             let mut scroll_target_top;
             let mut scroll_target_bottom;
-            if let Some(decorations) = assist.decorations.as_ref() {
+            match assist.decorations.as_ref() {
+                Some(decorations) => {
                     scroll_target_top = editor
                         .row_for_block(decorations.prompt_block_id, cx)
                         .unwrap()
@@ -1040,7 +1043,8 @@ impl InlineAssistant {
                         .row_for_block(decorations.end_block_id, cx)
                         .unwrap()
                         .0 as f32;
-            } else {
+                }
+                _ => {
                     let snapshot = editor.snapshot(window, cx);
                     let start_row = assist
                         .range
@@ -1050,6 +1054,7 @@ impl InlineAssistant {
                     scroll_target_top = start_row.0 as f32;
                     scroll_target_bottom = scroll_target_top + 1.;
                 }
+            }
             scroll_target_top -= editor.vertical_scroll_margin() as f32;
             scroll_target_bottom += editor.vertical_scroll_margin() as f32;
 
@@ -1093,10 +1098,11 @@ impl InlineAssistant {
     }
 
     pub fn start_assist(&mut self, assist_id: InlineAssistId, window: &mut Window, cx: &mut App) {
-        let assist = if let Some(assist) = self.assists.get_mut(&assist_id) {
+        let assist = match self.assists.get_mut(&assist_id) {
-            assist
+            Some(assist) => assist,
-        } else {
+            _ => {
                 return;
+            }
         };
 
         let assist_group_id = assist.group_id;
@@ -1128,10 +1134,11 @@ impl InlineAssistant {
     }
 
     pub fn stop_assist(&mut self, assist_id: InlineAssistId, cx: &mut App) {
-        let assist = if let Some(assist) = self.assists.get_mut(&assist_id) {
+        let assist = match self.assists.get_mut(&assist_id) {
-            assist
+            Some(assist) => assist,
-        } else {
+            _ => {
                 return;
+            }
         };
 
         assist.codegen.update(cx, |codegen, cx| codegen.stop(cx));
@@ -2184,7 +2191,7 @@ impl PromptEditor {
             .into_any_element()
     }
 
-    fn render_token_count(&self, cx: &mut Context<Self>) -> Option<impl IntoElement> {
+    fn render_token_count(&self, cx: &mut Context<Self>) -> Option<impl IntoElement + use<>> {
         let model = LanguageModelRegistry::read_global(cx).active_model()?;
         let token_counts = self.token_counts?;
         let max_token_count = model.max_token_count();
@@ -2212,7 +2219,8 @@ impl PromptEditor {
                     .size(LabelSize::Small)
                     .color(Color::Muted),
             );
-        if let Some(workspace) = self.workspace.clone() {
+        match self.workspace.clone() {
+            Some(workspace) => {
                 token_count = token_count
                     .tooltip(move |window, cx| {
                         Tooltip::with_meta(
@@ -2236,16 +2244,18 @@ impl PromptEditor {
                             })
                             .ok();
                     });
-        } else {
+            }
+            _ => {
                 token_count = token_count
                     .cursor_default()
                     .tooltip(Tooltip::text("Tokens used"));
             }
+        }
 
         Some(token_count)
     }
 
-    fn render_prompt_editor(&self, cx: &mut Context<Self>) -> impl IntoElement {
+    fn render_prompt_editor(&self, cx: &mut Context<Self>) -> impl IntoElement + use<> {
         let settings = ThemeSettings::get_global(cx);
         let text_style = TextStyle {
             color: if self.editor.read(cx).read_only(cx) {
@@ -2271,7 +2281,7 @@ impl PromptEditor {
         )
     }
 
-    fn render_rate_limit_notice(&self, cx: &mut Context<Self>) -> impl IntoElement {
+    fn render_rate_limit_notice(&self, cx: &mut Context<Self>) -> impl IntoElement + use<> {
         Popover::new().child(
             v_flex()
                 .occlude()
@@ -2430,10 +2440,11 @@ impl InlineAssist {
                     InlineAssistant::update_global(cx, |this, cx| match event {
                         CodegenEvent::Undone => this.finish_assist(assist_id, false, window, cx),
                         CodegenEvent::Finished => {
-                            let assist = if let Some(assist) = this.assists.get(&assist_id) {
+                            let assist = match this.assists.get(&assist_id) {
-                                assist
+                                Some(assist) => assist,
-                            } else {
+                                _ => {
                                     return;
+                                }
                             };
 
                             if let CodegenStatus::Error(error) = codegen.read(cx).status(cx) {
@@ -2865,7 +2876,8 @@ impl CodegenAlternative {
         assistant_panel_context: Option<LanguageModelRequest>,
         cx: &App,
     ) -> BoxFuture<'static, Result<TokenCounts>> {
-        if let Some(model) = LanguageModelRegistry::read_global(cx).active_model() {
+        match LanguageModelRegistry::read_global(cx).active_model() {
+            Some(model) => {
                 let request = self.build_request(user_prompt, assistant_panel_context.clone(), cx);
                 match request {
                     Ok(request) => {
@@ -2884,8 +2896,8 @@ impl CodegenAlternative {
                     }
                     Err(error) => futures::future::ready(Err(error)).boxed(),
                 }
-        } else {
+            }
-            future::ready(Err(anyhow!("no active model"))).boxed()
+            _ => future::ready(Err(anyhow!("no active model"))).boxed(),
         }
     }
 
@@ -3221,11 +3233,14 @@ impl CodegenAlternative {
                 .update(cx, |this, cx| {
                     this.message_id = message_id;
                     this.last_equal_ranges.clear();
-                    if let Err(error) = result {
+                    match result {
+                        Err(error) => {
                             this.status = CodegenStatus::Error(error);
-                    } else {
+                        }
+                        _ => {
                             this.status = CodegenStatus::Done;
                         }
+                    }
                     this.elapsed_time = Some(elapsed_time);
                     this.completion = Some(completion.lock().clone());
                     cx.emit(CodegenEvent::Finished);

crates/assistant/src/terminal_inline_assistant.rs

@@ -184,10 +184,11 @@ impl TerminalInlineAssistant {
     }
 
     fn start_assist(&mut self, assist_id: TerminalInlineAssistId, cx: &mut App) {
-        let assist = if let Some(assist) = self.assists.get_mut(&assist_id) {
+        let assist = match self.assists.get_mut(&assist_id) {
-            assist
+            Some(assist) => assist,
-        } else {
+            _ => {
                 return;
+            }
         };
 
         let Some(user_prompt) = assist
@@ -222,10 +223,11 @@ impl TerminalInlineAssistant {
     }
 
     fn stop_assist(&mut self, assist_id: TerminalInlineAssistId, cx: &mut App) {
-        let assist = if let Some(assist) = self.assists.get_mut(&assist_id) {
+        let assist = match self.assists.get_mut(&assist_id) {
-            assist
+            Some(assist) => assist,
-        } else {
+            _ => {
                 return;
+            }
         };
 
         assist.codegen.update(cx, |codegen, cx| codegen.stop(cx));
@@ -436,10 +438,11 @@ impl TerminalInlineAssist {
                 window.subscribe(&codegen, cx, move |codegen, event, window, cx| {
                     TerminalInlineAssistant::update_global(cx, |this, cx| match event {
                         CodegenEvent::Finished => {
-                            let assist = if let Some(assist) = this.assists.get(&assist_id) {
+                            let assist = match this.assists.get(&assist_id) {
-                                assist
+                                Some(assist) => assist,
-                            } else {
+                                _ => {
                                     return;
+                                }
                             };
 
                             if let CodegenStatus::Error(error) = &codegen.read(cx).status {
@@ -664,8 +667,8 @@ impl Render for PromptEditor {
                         },
                         gpui::Corner::TopRight,
                     ))
-                    .children(
+                    .children(match &self.codegen.read(cx).status {
-                        if let CodegenStatus::Error(error) = &self.codegen.read(cx).status {
+                        CodegenStatus::Error(error) => {
                             let error_message = SharedString::from(error.to_string());
                             Some(
                                 div()
@@ -677,10 +680,9 @@ impl Render for PromptEditor {
                                             .color(Color::Error),
                                     ),
                             )
-                        } else {
+                        }
-                            None
+                        _ => None,
-                        },
+                    }),
-                    ),
             )
             .child(div().flex_1().child(self.render_prompt_editor(cx)))
             .child(
@@ -979,7 +981,7 @@ impl PromptEditor {
         }
     }
 
-    fn render_token_count(&self, cx: &mut Context<Self>) -> Option<impl IntoElement> {
+    fn render_token_count(&self, cx: &mut Context<Self>) -> Option<impl IntoElement + use<>> {
         let model = LanguageModelRegistry::read_global(cx).active_model()?;
         let token_count = self.token_count?;
         let max_token_count = model.max_token_count();
@@ -1007,7 +1009,8 @@ impl PromptEditor {
                     .size(LabelSize::Small)
                     .color(Color::Muted),
             );
-        if let Some(workspace) = self.workspace.clone() {
+        match self.workspace.clone() {
+            Some(workspace) => {
                 token_count = token_count
                     .tooltip(|window, cx| {
                         Tooltip::with_meta(
@@ -1028,16 +1031,18 @@ impl PromptEditor {
                             })
                             .ok();
                     });
-        } else {
+            }
+            _ => {
                 token_count = token_count
                     .cursor_default()
                     .tooltip(Tooltip::text("Tokens Used by Inline Assistant"));
             }
+        }
 
         Some(token_count)
     }
 
-    fn render_prompt_editor(&self, cx: &mut Context<Self>) -> impl IntoElement {
+    fn render_prompt_editor(&self, cx: &mut Context<Self>) -> impl IntoElement + use<> {
         let settings = ThemeSettings::get_global(cx);
         let text_style = TextStyle {
             color: if self.editor.read(cx).read_only(cx) {
@@ -1217,11 +1222,14 @@ impl Codegen {
             let result = generate.await;
 
             this.update(cx, |this, cx| {
-                if let Err(error) = result {
+                match result {
+                    Err(error) => {
                         this.status = CodegenStatus::Error(error);
-                } else {
+                    }
+                    _ => {
                         this.status = CodegenStatus::Done;
                     }
+                }
                 cx.emit(CodegenEvent::Finished);
                 cx.notify();
             })

crates/assistant2/src/active_thread.rs

@@ -77,27 +77,36 @@ impl RenderedMessage {
     }
 
     fn append_thinking(&mut self, text: &String, window: &Window, cx: &mut App) {
-        if let Some(RenderedMessageSegment::Thinking {
+        match self.segments.last_mut() {
+            Some(RenderedMessageSegment::Thinking {
                 content,
                 scroll_handle,
-        }) = self.segments.last_mut()
+            }) => {
-        {
                 content.update(cx, |markdown, cx| {
                     markdown.append(text, cx);
                 });
                 scroll_handle.scroll_to_bottom();
-        } else {
+            }
+            _ => {
                 self.segments.push(RenderedMessageSegment::Thinking {
-                content: render_markdown(text.into(), self.language_registry.clone(), window, cx),
+                    content: render_markdown(
+                        text.into(),
+                        self.language_registry.clone(),
+                        window,
+                        cx,
+                    ),
                     scroll_handle: ScrollHandle::default(),
                 });
             }
         }
+    }
 
     fn append_text(&mut self, text: &String, window: &Window, cx: &mut App) {
-        if let Some(RenderedMessageSegment::Text(markdown)) = self.segments.last_mut() {
+        match self.segments.last_mut() {
+            Some(RenderedMessageSegment::Text(markdown)) => {
                 markdown.update(cx, |markdown, cx| markdown.append(text, cx));
-        } else {
+            }
+            _ => {
                 self.segments
                     .push(RenderedMessageSegment::Text(render_markdown(
                         SharedString::from(text),
@@ -107,6 +116,7 @@ impl RenderedMessage {
                     )));
             }
         }
+    }
 
     fn push_segment(&mut self, segment: &MessageSegment, window: &Window, cx: &mut App) {
         let rendered_segment = match segment {
@@ -929,21 +939,18 @@ impl ActiveThread {
         let message_content =
             v_flex()
                 .gap_1p5()
-                .child(
+                .child(match edit_message_editor.clone() {
-                    if let Some(edit_message_editor) = edit_message_editor.clone() {
+                    Some(edit_message_editor) => div()
-                        div()
                         .key_context("EditMessageEditor")
                         .on_action(cx.listener(Self::cancel_editing_message))
                         .on_action(cx.listener(Self::confirm_editing_message))
                         .min_h_6()
-                            .child(edit_message_editor)
+                        .child(edit_message_editor),
-                    } else {
+                    _ => div()
-                        div()
                         .min_h_6()
                         .text_ui(cx)
-                            .child(self.render_message_content(message_id, rendered_message, cx))
+                        .child(self.render_message_content(message_id, rendered_message, cx)),
-                    },
+                })
-                )
                 .when_some(context, |parent, context| {
                     if !context.is_empty() {
                         parent.child(h_flex().flex_wrap().gap_1().children(
@@ -1204,7 +1211,7 @@ impl ActiveThread {
         message_id: MessageId,
         rendered_message: &RenderedMessage,
         cx: &Context<Self>,
-    ) -> impl IntoElement {
+    ) -> impl IntoElement + use<> {
         let pending_thinking_segment_index = rendered_message
             .segments
             .iter()
@@ -1259,7 +1266,7 @@ impl ActiveThread {
         scroll_handle: &ScrollHandle,
         pending: bool,
         cx: &Context<Self>,
-    ) -> impl IntoElement {
+    ) -> impl IntoElement + use<> {
         let is_open = self
             .expanded_thinking_segments
             .get(&(message_id, ix))
@@ -1412,7 +1419,11 @@ impl ActiveThread {
         )
     }
 
-    fn render_tool_use(&self, tool_use: ToolUse, cx: &mut Context<Self>) -> impl IntoElement {
+    fn render_tool_use(
+        &self,
+        tool_use: ToolUse,
+        cx: &mut Context<Self>,
+    ) -> impl IntoElement + use<> {
         let is_open = self
             .expanded_tool_uses
             .get(&tool_use.id)
@@ -1822,7 +1833,7 @@ impl ActiveThread {
     fn render_confirmations<'a>(
         &'a mut self,
         cx: &'a mut Context<Self>,
-    ) -> impl Iterator<Item = AnyElement> + 'a {
+    ) -> impl Iterator<Item = AnyElement> + 'a + use<'a> {
         let thread = self.thread.read(cx);
 
         thread

crates/assistant2/src/assistant_configuration.rs

@@ -105,7 +105,7 @@ impl AssistantConfiguration {
         &mut self,
         provider: &Arc<dyn LanguageModelProvider>,
         cx: &mut Context<Self>,
-    ) -> impl IntoElement {
+    ) -> impl IntoElement + use<> {
         let provider_id = provider.id().0.clone();
         let provider_name = provider.name().0.clone();
         let configuration_view = self
@@ -167,7 +167,10 @@ impl AssistantConfiguration {
             )
     }
 
-    fn render_context_servers_section(&mut self, cx: &mut Context<Self>) -> impl IntoElement {
+    fn render_context_servers_section(
+        &mut self,
+        cx: &mut Context<Self>,
+    ) -> impl IntoElement + use<> {
         let context_servers = self.context_server_manager.read(cx).all_servers().clone();
         let tools_by_source = self.tools.tools_by_source(cx);
         let empty = Vec::new();

crates/assistant2/src/assistant_configuration/manage_profiles_modal.rs

@@ -318,7 +318,7 @@ impl ManageProfilesModal {
         mode: ChooseProfileMode,
         window: &mut Window,
         cx: &mut Context<Self>,
-    ) -> impl IntoElement {
+    ) -> impl IntoElement + use<> {
         Navigable::new(
             div()
                 .track_focus(&self.focus_handle(cx))
@@ -418,7 +418,7 @@ impl ManageProfilesModal {
         mode: NewProfileMode,
         _window: &mut Window,
         cx: &mut Context<Self>,
-    ) -> impl IntoElement {
+    ) -> impl IntoElement + use<> {
         let settings = AssistantSettings::get_global(cx);
 
         let base_profile_name = mode.base_profile_id.as_ref().map(|base_profile_id| {
@@ -448,7 +448,7 @@ impl ManageProfilesModal {
         mode: ViewProfileMode,
         window: &mut Window,
         cx: &mut Context<Self>,
-    ) -> impl IntoElement {
+    ) -> impl IntoElement + use<> {
         let settings = AssistantSettings::get_global(cx);
 
         let profile_name = settings

crates/assistant2/src/assistant_diff.rs

@@ -48,11 +48,11 @@ impl AssistantDiff {
                 .items_of_type::<AssistantDiff>(cx)
                 .find(|diff| diff.read(cx).thread == thread)
         })?;
-        if let Some(existing_diff) = existing_diff {
+        match existing_diff {
-            workspace.update(cx, |workspace, cx| {
+            Some(existing_diff) => workspace.update(cx, |workspace, cx| {
                 workspace.activate_item(&existing_diff, true, true, window, cx);
-            })
+            }),
-        } else {
+            _ => {
                 let assistant_diff =
                     cx.new(|cx| AssistantDiff::new(thread.clone(), workspace.clone(), window, cx));
                 workspace.update(cx, |workspace, cx| {
@@ -60,6 +60,7 @@ impl AssistantDiff {
                 })
             }
         }
+    }
 
     pub fn new(
         thread: Entity<Thread>,

crates/assistant2/src/assistant_panel.rs

@@ -584,20 +584,14 @@ impl Focusable for AssistantPanel {
         match self.active_view {
             ActiveView::Thread => self.message_editor.focus_handle(cx),
             ActiveView::History => self.history.focus_handle(cx),
-            ActiveView::PromptEditor => {
+            ActiveView::PromptEditor => match self.context_editor.as_ref() {
-                if let Some(context_editor) = self.context_editor.as_ref() {
+                Some(context_editor) => context_editor.focus_handle(cx),
-                    context_editor.focus_handle(cx)
+                _ => cx.focus_handle(),
-                } else {
+            },
-                    cx.focus_handle()
+            ActiveView::Configuration => match self.configuration.as_ref() {
-                }
+                Some(configuration) => configuration.focus_handle(cx),
-            }
+                _ => cx.focus_handle(),
-            ActiveView::Configuration => {
+            },
-                if let Some(configuration) = self.configuration.as_ref() {
-                    configuration.focus_handle(cx)
-                } else {
-                    cx.focus_handle()
-                }
-            }
         }
     }
 }
@@ -683,7 +677,11 @@ impl Panel for AssistantPanel {
 }
 
 impl AssistantPanel {
-    fn render_toolbar(&self, _window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
+    fn render_toolbar(
+        &self,
+        _window: &mut Window,
+        cx: &mut Context<Self>,
+    ) -> impl IntoElement + use<> {
         let thread = self.thread.read(cx);
         let focus_handle = self.focus_handle(cx);
 
@@ -825,7 +823,7 @@ impl AssistantPanel {
         &self,
         window: &mut Window,
         cx: &mut Context<Self>,
-    ) -> impl IntoElement {
+    ) -> impl IntoElement + use<> {
         let recent_history = self
             .history_store
             .update(cx, |this, cx| this.recent_entries(6, cx));

crates/assistant2/src/buffer_codegen.rs

@@ -676,11 +676,14 @@ impl CodegenAlternative {
                 .update(cx, |this, cx| {
                     this.message_id = message_id;
                     this.last_equal_ranges.clear();
-                    if let Err(error) = result {
+                    match result {
+                        Err(error) => {
                             this.status = CodegenStatus::Error(error);
-                    } else {
+                        }
+                        _ => {
                             this.status = CodegenStatus::Done;
                         }
+                    }
                     this.elapsed_time = Some(elapsed_time);
                     this.completion = Some(completion.lock().clone());
                     if let Some(usage) = token_usage {

crates/assistant2/src/context_picker/completion_provider.rs

@@ -581,15 +581,14 @@ impl CompletionProvider for ContextPickerCompletionProvider {
         let line_start = Point::new(position.row, 0);
         let offset_to_line = buffer.point_to_offset(line_start);
         let mut lines = buffer.text_for_range(line_start..position).lines();
-        if let Some(line) = lines.next() {
+        match lines.next() {
-            MentionCompletion::try_parse(line, offset_to_line)
+            Some(line) => MentionCompletion::try_parse(line, offset_to_line)
                 .map(|completion| {
                     completion.source_range.start <= offset_to_line + position.column as usize
                         && completion.source_range.end >= offset_to_line + position.column as usize
                 })
-                .unwrap_or(false)
+                .unwrap_or(false),
-        } else {
+            _ => false,
-            false
         }
     }
 

crates/assistant2/src/context_store.rs

@@ -360,14 +360,17 @@ impl ContextStore {
         remove_if_exists: bool,
         cx: &mut Context<Self>,
     ) {
-        if let Some(context_id) = self.includes_thread(&thread.read(cx).id()) {
+        match self.includes_thread(&thread.read(cx).id()) {
+            Some(context_id) => {
                 if remove_if_exists {
                     self.remove_context(context_id);
                 }
-        } else {
+            }
+            _ => {
                 self.insert_thread(thread, cx);
             }
         }
+    }
 
     fn insert_thread(&mut self, thread: Entity<Thread>, cx: &App) {
         let id = self.next_context_id.post_inc();
@@ -687,7 +690,7 @@ pub fn refresh_context_store_text(
     context_store: Entity<ContextStore>,
     changed_buffers: &HashSet<Entity<Buffer>>,
     cx: &App,
-) -> impl Future<Output = Vec<ContextId>> {
+) -> impl Future<Output = Vec<ContextId>> + use<> {
     let mut tasks = Vec::new();
 
     for context in &context_store.read(cx).context {
@@ -756,8 +759,8 @@ fn refresh_file_text(
 ) -> Option<Task<()>> {
     let id = file_context.id;
     let task = refresh_context_buffer(&file_context.context_buffer, cx);
-    if let Some(task) = task {
+    match task {
-        Some(cx.spawn(async move |cx| {
+        Some(task) => Some(cx.spawn(async move |cx| {
             let context_buffer = task.await;
             context_store
                 .update(cx, |context_store, _| {
@@ -765,9 +768,8 @@ fn refresh_file_text(
                     context_store.replace_context(AssistantContext::File(new_file_context));
                 })
                 .ok();
-        }))
+        })),
-    } else {
+        _ => None,
-        None
     }
 }
 
@@ -780,14 +782,15 @@ fn refresh_directory_text(
     let futures = directory_context
         .context_buffers
         .iter()
-        .map(|context_buffer| {
+        .map(
-            if let Some(refresh_task) = refresh_context_buffer(context_buffer, cx) {
+            |context_buffer| match refresh_context_buffer(context_buffer, cx) {
+                Some(refresh_task) => {
                     stale = true;
                     future::Either::Left(refresh_task)
-            } else {
-                future::Either::Right(future::ready((*context_buffer).clone()))
                 }
-        })
+                _ => future::Either::Right(future::ready((*context_buffer).clone())),
+            },
+        )
         .collect::<Vec<_>>();
 
     if !stale {
@@ -816,8 +819,8 @@ fn refresh_symbol_text(
 ) -> Option<Task<()>> {
     let id = symbol_context.id;
     let task = refresh_context_symbol(&symbol_context.context_symbol, cx);
-    if let Some(task) = task {
+    match task {
-        Some(cx.spawn(async move |cx| {
+        Some(task) => Some(cx.spawn(async move |cx| {
             let context_symbol = task.await;
             context_store
                 .update(cx, |context_store, _| {
@@ -825,9 +828,8 @@ fn refresh_symbol_text(
                     context_store.replace_context(AssistantContext::Symbol(new_symbol_context));
                 })
                 .ok();
-        }))
+        })),
-    } else {
+        _ => None,
-        None
     }
 }
 
@@ -855,7 +857,7 @@ fn refresh_thread_text(
 fn refresh_context_buffer(
     context_buffer: &ContextBuffer,
     cx: &App,
-) -> Option<impl Future<Output = ContextBuffer>> {
+) -> Option<impl Future<Output = ContextBuffer> + use<>> {
     let buffer = context_buffer.buffer.read(cx);
     let path = buffer_path_log_err(buffer)?;
     if buffer.version.changed_since(&context_buffer.version) {
@@ -875,7 +877,7 @@ fn refresh_context_buffer(
 fn refresh_context_symbol(
     context_symbol: &ContextSymbol,
     cx: &App,
-) -> Option<impl Future<Output = ContextSymbol>> {
+) -> Option<impl Future<Output = ContextSymbol> + use<>> {
     let buffer = context_symbol.buffer.read(cx);
     let path = buffer_path_log_err(buffer)?;
     let project_path = buffer.project_path(cx)?;

crates/assistant2/src/inline_assistant.rs

@@ -341,9 +341,9 @@ impl InlineAssistant {
                 selection.end.column = snapshot
                     .buffer_snapshot
                     .line_len(MultiBufferRow(selection.end.row));
-            } else if let Some(fold) =
+            } else {
-                snapshot.crease_for_buffer_row(MultiBufferRow(selection.end.row))
+                match snapshot.crease_for_buffer_row(MultiBufferRow(selection.end.row)) {
-            {
+                    Some(fold) => {
                         selection.start = fold.range().start;
                         selection.end = fold.range().end;
                         if MultiBufferRow(selection.end.row) < snapshot.buffer_snapshot.max_row() {
@@ -358,10 +358,9 @@ impl InlineAssistant {
                                 if c.is_whitespace() {
                                     continue;
                                 }
-                        if snapshot
+                                if snapshot.language_at(selection.end).is_some_and(|language| {
-                            .language_at(selection.end)
+                                    language.config().brackets.is_closing_brace(c)
-                            .is_some_and(|language| language.config().brackets.is_closing_brace(c))
+                                }) {
-                        {
                                     selection.end.row += 1;
                                     selection.end.column = snapshot
                                         .buffer_snapshot
@@ -370,6 +369,9 @@ impl InlineAssistant {
                             }
                         }
                     }
+                    _ => {}
+                }
+            }
 
             if let Some(prev_selection) = selections.last_mut() {
                 if selection.start <= prev_selection.end {
@@ -1129,7 +1131,8 @@ impl InlineAssistant {
 
             let mut scroll_target_top;
             let mut scroll_target_bottom;
-            if let Some(decorations) = assist.decorations.as_ref() {
+            match assist.decorations.as_ref() {
+                Some(decorations) => {
                     scroll_target_top = editor
                         .row_for_block(decorations.prompt_block_id, cx)
                         .unwrap()
@@ -1138,7 +1141,8 @@ impl InlineAssistant {
                         .row_for_block(decorations.end_block_id, cx)
                         .unwrap()
                         .0 as f32;
-            } else {
+                }
+                _ => {
                     let snapshot = editor.snapshot(window, cx);
                     let start_row = assist
                         .range
@@ -1148,6 +1152,7 @@ impl InlineAssistant {
                     scroll_target_top = start_row.0 as f32;
                     scroll_target_bottom = scroll_target_top + 1.;
                 }
+            }
             scroll_target_top -= editor.vertical_scroll_margin() as f32;
             scroll_target_bottom += editor.vertical_scroll_margin() as f32;
 
@@ -1191,10 +1196,11 @@ impl InlineAssistant {
     }
 
     pub fn start_assist(&mut self, assist_id: InlineAssistId, window: &mut Window, cx: &mut App) {
-        let assist = if let Some(assist) = self.assists.get_mut(&assist_id) {
+        let assist = match self.assists.get_mut(&assist_id) {
-            assist
+            Some(assist) => assist,
-        } else {
+            _ => {
                 return;
+            }
         };
 
         let assist_group_id = assist.group_id;
@@ -1222,10 +1228,11 @@ impl InlineAssistant {
     }
 
     pub fn stop_assist(&mut self, assist_id: InlineAssistId, cx: &mut App) {
-        let assist = if let Some(assist) = self.assists.get_mut(&assist_id) {
+        let assist = match self.assists.get_mut(&assist_id) {
-            assist
+            Some(assist) => assist,
-        } else {
+            _ => {
                 return;
+            }
         };
 
         assist.codegen.update(cx, |codegen, cx| codegen.stop(cx));
@@ -1449,20 +1456,27 @@ impl InlineAssistant {
                 }
             });
 
-        if let Some(context_editor) = context_editor {
+        match context_editor {
-            Some(InlineAssistTarget::Editor(context_editor))
+            Some(context_editor) => Some(InlineAssistTarget::Editor(context_editor)),
-        } else if let Some(workspace_editor) = workspace
+            _ => {
+                match workspace
                     .active_item(cx)
                     .and_then(|item| item.act_as::<Editor>(cx))
                 {
-            Some(InlineAssistTarget::Editor(workspace_editor))
+                    Some(workspace_editor) => Some(InlineAssistTarget::Editor(workspace_editor)),
-        } else if let Some(terminal_view) = workspace
+                    _ => {
+                        match workspace
                             .active_item(cx)
                             .and_then(|item| item.act_as::<TerminalView>(cx))
                         {
+                            Some(terminal_view) => {
                                 Some(InlineAssistTarget::Terminal(terminal_view))
-        } else {
+                            }
-            None
+                            _ => None,
+                        }
+                    }
+                }
+            }
         }
     }
 }
@@ -1654,10 +1668,11 @@ impl InlineAssist {
                     InlineAssistant::update_global(cx, |this, cx| match event {
                         CodegenEvent::Undone => this.finish_assist(assist_id, false, window, cx),
                         CodegenEvent::Finished => {
-                            let assist = if let Some(assist) = this.assists.get(&assist_id) {
+                            let assist = match this.assists.get(&assist_id) {
-                                assist
+                                Some(assist) => assist,
-                            } else {
+                                _ => {
                                     return;
+                                }
                             };
 
                             if let CodegenStatus::Error(error) = codegen.read(cx).status(cx) {

crates/assistant2/src/inline_prompt_editor.rs

@@ -677,7 +677,7 @@ impl<T: 'static> PromptEditor<T> {
             .into_any_element()
     }
 
-    fn render_rate_limit_notice(&self, cx: &mut Context<Self>) -> impl IntoElement {
+    fn render_rate_limit_notice(&self, cx: &mut Context<Self>) -> impl IntoElement + use<T> {
         Popover::new().child(
             v_flex()
                 .occlude()

crates/assistant2/src/terminal_codegen.rs

@@ -117,11 +117,14 @@ impl TerminalCodegen {
             let result = generate.await;
 
             this.update(cx, |this, cx| {
-                if let Err(error) = result {
+                match result {
+                    Err(error) => {
                         this.status = CodegenStatus::Error(error);
-                } else {
+                    }
+                    _ => {
                         this.status = CodegenStatus::Done;
                     }
+                }
                 cx.emit(CodegenEvent::Finished);
                 cx.notify();
             })

crates/assistant2/src/terminal_inline_assistant.rs

@@ -164,10 +164,11 @@ impl TerminalInlineAssistant {
     }
 
     fn start_assist(&mut self, assist_id: TerminalInlineAssistId, cx: &mut App) {
-        let assist = if let Some(assist) = self.assists.get_mut(&assist_id) {
+        let assist = match self.assists.get_mut(&assist_id) {
-            assist
+            Some(assist) => assist,
-        } else {
+            _ => {
                 return;
+            }
         };
 
         let Some(user_prompt) = assist
@@ -202,10 +203,11 @@ impl TerminalInlineAssistant {
     }
 
     fn stop_assist(&mut self, assist_id: TerminalInlineAssistId, cx: &mut App) {
-        let assist = if let Some(assist) = self.assists.get_mut(&assist_id) {
+        let assist = match self.assists.get_mut(&assist_id) {
-            assist
+            Some(assist) => assist,
-        } else {
+            _ => {
                 return;
+            }
         };
 
         assist.codegen.update(cx, |codegen, cx| codegen.stop(cx));
@@ -402,10 +404,11 @@ impl TerminalInlineAssist {
                 window.subscribe(&codegen, cx, move |codegen, event, window, cx| {
                     TerminalInlineAssistant::update_global(cx, |this, cx| match event {
                         CodegenEvent::Finished => {
-                            let assist = if let Some(assist) = this.assists.get(&assist_id) {
+                            let assist = match this.assists.get(&assist_id) {
-                                assist
+                                Some(assist) => assist,
-                            } else {
+                                _ => {
                                     return;
+                                }
                             };
 
                             if let CodegenStatus::Error(error) = &codegen.read(cx).status {

crates/assistant2/src/thread.rs

@@ -379,15 +379,18 @@ impl Thread {
         cx.spawn(async move |this, cx| {
             let result = restore.await;
             this.update(cx, |this, cx| {
-                if let Err(err) = result.as_ref() {
+                match result.as_ref() {
+                    Err(err) => {
                         this.last_restore_checkpoint = Some(LastRestoreCheckpoint::Error {
                             message_id: checkpoint.message_id,
                             error: err.to_string(),
                         });
-                } else {
+                    }
+                    _ => {
                         this.truncate(checkpoint.message_id, cx);
                         this.last_restore_checkpoint = None;
                     }
+                }
                 this.pending_checkpoint = None;
                 cx.emit(ThreadEvent::CheckpointChanged);
                 cx.notify();
@@ -721,8 +724,8 @@ impl Thread {
             })
             .next();
 
-        if let Some((rel_rules_path, abs_rules_path)) = selected_rules_file {
+        match selected_rules_file {
-            cx.spawn(async move |_| {
+            Some((rel_rules_path, abs_rules_path)) => cx.spawn(async move |_| {
                 let rules_file_result = maybe!(async move {
                     let abs_rules_path = abs_rules_path?;
                     let text = fs.load(&abs_rules_path).await.with_context(|| {
@@ -751,16 +754,15 @@ impl Thread {
                     rules_file,
                 };
                 (worktree_info, rules_file_error)
-            })
+            }),
-        } else {
+            _ => Task::ready((
-            Task::ready((
                 WorktreeInfoForSystemPrompt {
                     root_name,
                     abs_path,
                     rules_file: None,
                 },
                 None,
-            ))
+            )),
         }
     }
 
@@ -1186,7 +1188,7 @@ impl Thread {
     pub fn use_pending_tools(
         &mut self,
         cx: &mut Context<Self>,
-    ) -> impl IntoIterator<Item = PendingToolUse> {
+    ) -> impl IntoIterator<Item = PendingToolUse> + use<> {
         let request = self.to_completion_request(RequestKind::Chat, cx);
         let messages = Arc::new(request.messages);
         let pending_tool_uses = self
@@ -1198,7 +1200,8 @@ impl Thread {
             .collect::<Vec<_>>();
 
         for tool_use in pending_tool_uses.iter() {
-            if let Some(tool) = self.tools.tool(&tool_use.name, cx) {
+            match self.tools.tool(&tool_use.name, cx) {
+                Some(tool) => {
                     if tool.needs_confirmation()
                         && !AssistantSettings::get_global(cx).always_allow_tool_actions
                     {
@@ -1220,7 +1223,9 @@ impl Thread {
                             cx,
                         );
                     }
-            } else if let Some(tool) = self.tools.tool(&tool_use.name, cx) {
+                }
+                _ => match self.tools.tool(&tool_use.name, cx) {
+                    Some(tool) => {
                         self.run_tool(
                             tool_use.id.clone(),
                             tool_use.ui_text.clone(),
@@ -1230,6 +1235,9 @@ impl Thread {
                             cx,
                         );
                     }
+                    _ => {}
+                },
+            }
         }
 
         pending_tool_uses

crates/assistant2/src/tool_use.rs

@@ -166,8 +166,8 @@ impl ToolUseState {
                     };
                 }
 
-                if let Some(pending_tool_use) = self.pending_tool_uses_by_id.get(&tool_use.id) {
+                match self.pending_tool_uses_by_id.get(&tool_use.id) {
-                    match pending_tool_use.status {
+                    Some(pending_tool_use) => match pending_tool_use.status {
                         PendingToolUseStatus::Idle => ToolUseStatus::Pending,
                         PendingToolUseStatus::NeedsConfirmation { .. } => {
                             ToolUseStatus::NeedsConfirmation
@@ -176,17 +176,14 @@ impl ToolUseState {
                         PendingToolUseStatus::Error(ref err) => {
                             ToolUseStatus::Error(err.clone().into())
                         }
-                    }
+                    },
-                } else {
+                    _ => ToolUseStatus::Pending,
-                    ToolUseStatus::Pending
                 }
             })();
 
-            let (icon, needs_confirmation) = if let Some(tool) = self.tools.tool(&tool_use.name, cx)
+            let (icon, needs_confirmation) = match self.tools.tool(&tool_use.name, cx) {
-            {
+                Some(tool) => (tool.icon(), tool.needs_confirmation()),
-                (tool.icon(), tool.needs_confirmation())
+                _ => (IconName::Cog, false),
-            } else {
-                (IconName::Cog, false)
             };
 
             tool_uses.push(ToolUse {
@@ -209,10 +206,9 @@ impl ToolUseState {
         input: &serde_json::Value,
         cx: &App,
     ) -> SharedString {
-        if let Some(tool) = self.tools.tool(tool_name, cx) {
+        match self.tools.tool(tool_name, cx) {
-            tool.ui_text(input).into()
+            Some(tool) => tool.ui_text(input).into(),
-        } else {
+            _ => format!("Unknown tool {tool_name:?}").into(),
-            format!("Unknown tool {tool_name:?}").into()
         }
     }
 

crates/assistant_context_editor/src/context.rs

@@ -1877,16 +1877,19 @@ impl AssistantContext {
 
         if let Some(mut pending_patch) = pending_patch {
             let patch_start = pending_patch.range.start.to_offset(buffer);
-            if let Some(message) = self.message_for_offset(patch_start, cx) {
+            match self.message_for_offset(patch_start, cx) {
+                Some(message) => {
                     if message.anchor_range.end == text::Anchor::MAX {
                         pending_patch.range.end = text::Anchor::MAX;
                     } else {
                         let message_end = buffer.anchor_after(message.offset_range.end - 1);
                         pending_patch.range.end = message_end;
                     }
-            } else {
+                }
+                _ => {
                     pending_patch.range.end = text::Anchor::MAX;
                 }
+            }
 
             new_patches.push(pending_patch);
         }
@@ -2453,7 +2456,7 @@ impl AssistantContext {
                 let result = stream_completion.await;
 
                 this.update(cx, |this, cx| {
-                    let error_message = if let Some(error) = result.as_ref().err() {
+                    let error_message = match result.as_ref().err() { Some(error) => {
                         if error.is::<PaymentRequiredError>() {
                             cx.emit(ContextEvent::ShowPaymentRequiredError);
                             this.update_metadata(assistant_message_id, cx, |metadata| {
@@ -2481,12 +2484,12 @@ impl AssistantContext {
                             });
                             Some(error_message)
                         }
-                    } else {
+                    } _ => {
                         this.update_metadata(assistant_message_id, cx, |metadata| {
                             metadata.status = MessageStatus::Done;
                         });
                         None
-                    };
+                    }};
 
                     let language_name = this
                         .buffer
@@ -2631,15 +2634,16 @@ impl AssistantContext {
     }
 
     pub fn cancel_last_assist(&mut self, cx: &mut Context<Self>) -> bool {
-        if let Some(pending_completion) = self.pending_completions.pop() {
+        match self.pending_completions.pop() {
+            Some(pending_completion) => {
                 self.update_metadata(pending_completion.assistant_message_id, cx, |metadata| {
                     if metadata.status == MessageStatus::Pending {
                         metadata.status = MessageStatus::Canceled;
                     }
                 });
                 true
-        } else {
+            }
-            false
+            _ => false,
         }
     }
 
@@ -2799,7 +2803,8 @@ impl AssistantContext {
     ) -> (Option<MessageAnchor>, Option<MessageAnchor>) {
         let start_message = self.message_for_offset(range.start, cx);
         let end_message = self.message_for_offset(range.end, cx);
-        if let Some((start_message, end_message)) = start_message.zip(end_message) {
+        match start_message.zip(end_message) {
+            Some((start_message, end_message)) => {
                 // Prevent splitting when range spans multiple messages.
                 if start_message.id != end_message.id {
                     return (None, None);
@@ -2817,7 +2822,8 @@ impl AssistantContext {
                 {
                     if self.buffer.read(cx).chars_at(range.end).next() == Some('\n') {
                         suffix_start = Some(range.end + 1);
-                } else if self.buffer.read(cx).reversed_chars_at(range.end).next() == Some('\n') {
+                    } else if self.buffer.read(cx).reversed_chars_at(range.end).next() == Some('\n')
+                    {
                         suffix_start = Some(range.end);
                     }
                 }
@@ -2912,8 +2918,8 @@ impl AssistantContext {
                     cx.emit(ContextEvent::MessagesEdited);
                 }
                 new_messages
-        } else {
+            }
-            (None, None)
+            _ => (None, None),
         }
     }
 

crates/assistant_context_editor/src/context_editor.rs

@@ -403,10 +403,12 @@ impl ContextEditor {
         if request_type == RequestType::SuggestEdits && !self.context.read(cx).contains_files(cx) {
             self.last_error = Some(AssistError::FileRequired);
             cx.notify();
-        } else if let Some(user_message) = self
+        } else {
+            match self
                 .context
                 .update(cx, |context, cx| context.assist(request_type, cx))
             {
+                Some(user_message) => {
                     let new_selection = {
                         let cursor = user_message
                             .start
@@ -414,13 +416,19 @@ impl ContextEditor {
                         cursor..cursor
                     };
                     self.editor.update(cx, |editor, cx| {
-                editor.change_selections(Some(Autoscroll::fit()), window, cx, |selections| {
+                        editor.change_selections(
-                    selections.select_ranges([new_selection])
+                            Some(Autoscroll::fit()),
-                });
+                            window,
+                            cx,
+                            |selections| selections.select_ranges([new_selection]),
+                        );
                     });
                     // Avoid scrolling to the new cursor position so the assistant's output is stable.
                     cx.defer_in(window, |this, _, _| this.scroll_position = None);
                 }
+                _ => {}
+            }
+        }
 
         cx.notify();
     }
@@ -817,10 +825,9 @@ impl ContextEditor {
         }
 
         self.editor.update(cx, |editor, cx| {
-            if let Some(invoked_slash_command) =
+            match self.context.read(cx).invoked_slash_command(&command_id) {
-                self.context.read(cx).invoked_slash_command(&command_id)
+                Some(invoked_slash_command) => match invoked_slash_command.status {
-            {
+                    InvokedSlashCommandStatus::Finished => {
-                if let InvokedSlashCommandStatus::Finished = invoked_slash_command.status {
                         let buffer = editor.buffer().read(cx).snapshot(cx);
                         let (&excerpt_id, _buffer_id, _buffer_snapshot) =
                             buffer.as_singleton().unwrap();
@@ -839,10 +846,14 @@ impl ContextEditor {
                         );
 
                         editor.remove_creases(
-                        HashSet::from_iter(self.invoked_slash_command_creases.remove(&command_id)),
+                            HashSet::from_iter(
+                                self.invoked_slash_command_creases.remove(&command_id),
+                            ),
                             cx,
                         );
-                } else if let hash_map::Entry::Vacant(entry) =
+                    }
+                    _ => {
+                        if let hash_map::Entry::Vacant(entry) =
                             self.invoked_slash_command_creases.entry(command_id)
                         {
                             let buffer = editor.buffer().read(cx).snapshot(cx);
@@ -867,12 +878,15 @@ impl ContextEditor {
                         } else {
                             cx.notify()
                         }
-            } else {
+                    }
+                },
+                _ => {
                     editor.remove_creases(
                         HashSet::from_iter(self.invoked_slash_command_creases.remove(&command_id)),
                         cx,
                     );
                     cx.notify();
+                }
             };
         });
     }
@@ -958,7 +972,8 @@ impl ContextEditor {
                 );
 
                 let should_refold;
-                if let Some(state) = self.patches.get_mut(&range) {
+                match self.patches.get_mut(&range) {
+                    Some(state) => {
                         if let Some(editor_state) = &state.editor {
                             if editor_state.opened_patch != patch {
                                 state.update_task = Some({
@@ -972,9 +987,10 @@ impl ContextEditor {
                             }
                         }
 
-                    should_refold =
+                        should_refold = snapshot
-                        snapshot.intersects_fold(patch_start.to_offset(&snapshot.buffer_snapshot));
+                            .intersects_fold(patch_start.to_offset(&snapshot.buffer_snapshot));
-                } else {
+                    }
+                    _ => {
                         let crease_id = editor.insert_creases([crease.clone()], cx)[0];
                         self.patches.insert(
                             range.clone(),
@@ -987,6 +1003,7 @@ impl ContextEditor {
 
                         should_refold = true;
                     }
+                }
 
                 if should_refold {
                     editor.unfold_ranges(&[patch_start..patch_end], true, false, cx);
@@ -1175,20 +1192,24 @@ impl ContextEditor {
                     }
                 }
 
-                if let Some(editor) = editor {
+                match editor {
+                    Some(editor) => {
                         self.workspace
                             .update(cx, |workspace, cx| {
                                 workspace.activate_item(&editor, true, false, window, cx);
                             })
                             .ok();
-                } else {
+                    }
-                    patch_state.update_task = Some(cx.spawn_in(window, async move |this, cx| {
+                    _ => {
+                        patch_state.update_task =
+                            Some(cx.spawn_in(window, async move |this, cx| {
                                 Self::open_patch_editor(this, new_patch, cx).await.log_err();
                             }));
                     }
                 }
             }
         }
+    }
 
     fn close_patch_editor(
         &mut self,
@@ -1282,7 +1303,8 @@ impl ContextEditor {
                 .collect();
 
             if let Some(state) = &mut patch_state.editor {
-                if let Some(editor) = state.editor.upgrade() {
+                match state.editor.upgrade() {
+                    Some(editor) => {
                         editor.update(cx, |editor, cx| {
                             editor.set_title(patch.title.clone(), cx);
                             editor.reset_locations(locations, window, cx);
@@ -1290,10 +1312,12 @@ impl ContextEditor {
                         });
 
                         state.opened_patch = patch;
-                } else {
+                    }
+                    _ => {
                         patch_state.editor.take();
                     }
                 }
+            }
             patch_state.update_task.take();
 
             Some(())
@@ -1573,7 +1597,8 @@ impl ContextEditor {
             let mut new_blocks = vec![];
             let mut block_index_to_message = vec![];
             for message in self.context.read(cx).messages(cx) {
-                if let Some(_) = blocks_to_remove.remove(&message.id) {
+                match blocks_to_remove.remove(&message.id) {
+                    Some(_) => {
                         // This is an old message that we might modify.
                         let Some((meta, block_id)) = old_blocks.get_mut(&message.id) else {
                             debug_assert!(
@@ -1588,12 +1613,14 @@ impl ContextEditor {
                             blocks_to_replace.insert(*block_id, render_block(message_meta.clone()));
                             *meta = message_meta;
                         }
-                } else {
+                    }
+                    _ => {
                         // This is a new message.
                         new_blocks.push(create_block_properties(&message));
                         block_index_to_message.push((message.id, MessageMetadata::from(&message)));
                     }
                 }
+            }
             editor.replace_blocks(blocks_to_replace, None, cx);
             editor.remove_blocks(blocks_to_remove.into_values().collect(), None, cx);
 
@@ -2321,10 +2348,14 @@ impl ContextEditor {
                     )
                     .into_any_element(),
             )
-        } else if let Some(configuration_error) = configuration_error(cx) {
+        } else {
+            match configuration_error(cx) {
+                Some(configuration_error) => {
                     let label = match configuration_error {
                         ConfigurationError::NoProvider => "No LLM provider selected.",
-                ConfigurationError::ProviderNotAuthenticated => "LLM provider is not configured.",
+                        ConfigurationError::ProviderNotAuthenticated => {
+                            "LLM provider is not configured."
+                        }
                         ConfigurationError::ProviderPendingTermsAcceptance(_) => {
                             "LLM provider requires accepting the Terms of Service."
                         }
@@ -2357,18 +2388,27 @@ impl ContextEditor {
                                     .on_click({
                                         let focus_handle = self.focus_handle(cx).clone();
                                         move |_event, window, cx| {
-                                    focus_handle.dispatch_action(&ShowConfiguration, window, cx);
+                                            focus_handle.dispatch_action(
+                                                &ShowConfiguration,
+                                                window,
+                                                cx,
+                                            );
                                         }
                                     }),
                             )
                             .into_any_element(),
                     )
-        } else {
+                }
-            None
+                _ => None,
+            }
         }
     }
 
-    fn render_send_button(&self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
+    fn render_send_button(
+        &self,
+        window: &mut Window,
+        cx: &mut Context<Self>,
+    ) -> impl IntoElement + use<> {
         let focus_handle = self.focus_handle(cx).clone();
 
         let (style, tooltip) = match token_state(&self.context, cx) {
@@ -2427,7 +2467,11 @@ impl ContextEditor {
             })
     }
 
-    fn render_edit_button(&self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
+    fn render_edit_button(
+        &self,
+        window: &mut Window,
+        cx: &mut Context<Self>,
+    ) -> impl IntoElement + use<> {
         let focus_handle = self.focus_handle(cx).clone();
 
         let (style, tooltip) = match token_state(&self.context, cx) {
@@ -2480,7 +2524,7 @@ impl ContextEditor {
             })
     }
 
-    fn render_inject_context_menu(&self, cx: &mut Context<Self>) -> impl IntoElement {
+    fn render_inject_context_menu(&self, cx: &mut Context<Self>) -> impl IntoElement + use<> {
         slash_command_picker::SlashCommandSelector::new(
             self.slash_commands.clone(),
             cx.entity().downgrade(),
@@ -2499,7 +2543,7 @@ impl ContextEditor {
         )
     }
 
-    fn render_language_model_selector(&self, cx: &mut Context<Self>) -> impl IntoElement {
+    fn render_language_model_selector(&self, cx: &mut Context<Self>) -> impl IntoElement + use<> {
         let active_model = LanguageModelRegistry::read_global(cx).active_model();
         let focus_handle = self.editor().focus_handle(cx).clone();
         let model_name = match active_model {
@@ -3283,12 +3327,9 @@ impl FollowableItem for ContextEditor {
         Some(proto::view::Variant::ContextEditor(
             proto::view::ContextEditor {
                 context_id: context.id().to_proto(),
-                editor: if let Some(proto::view::Variant::Editor(proto)) =
+                editor: match self.editor.read(cx).to_state_proto(window, cx) {
-                    self.editor.read(cx).to_state_proto(window, cx)
+                    Some(proto::view::Variant::Editor(proto)) => Some(proto),
-                {
+                    _ => None,
-                    Some(proto)
-                } else {
-                    None
                 },
             },
         ))
@@ -3413,7 +3454,7 @@ impl ContextEditorToolbarItem {
 pub fn render_remaining_tokens(
     context_editor: &Entity<ContextEditor>,
     cx: &App,
-) -> Option<impl IntoElement> {
+) -> Option<impl IntoElement + use<>> {
     let context = &context_editor.read(cx).context;
 
     let (token_count_color, token_count, max_token_count, tooltip) = match token_state(context, cx)?

crates/assistant_context_editor/src/context_store.rs

@@ -299,13 +299,12 @@ impl ContextStore {
         }
 
         if is_shared {
-            self.contexts.retain_mut(|context| {
+            self.contexts.retain_mut(|context| match context.upgrade() {
-                if let Some(strong_context) = context.upgrade() {
+                Some(strong_context) => {
                     *context = ContextHandle::Strong(strong_context);
                     true
-                } else {
-                    false
                 }
+                _ => false,
             });
             let remote_id = self.project.read(cx).remote_id().unwrap();
             self.client_subscription = self
@@ -336,8 +335,8 @@ impl ContextStore {
                 self.synchronize_contexts(cx);
             }
             project::Event::DisconnectedFromHost => {
-                self.contexts.retain_mut(|context| {
+                self.contexts.retain_mut(|context| match context.upgrade() {
-                    if let Some(strong_context) = context.upgrade() {
+                    Some(strong_context) => {
                         *context = ContextHandle::Weak(context.downgrade());
                         strong_context.update(cx, |context, cx| {
                             if context.replica_id() != ReplicaId::default() {
@@ -345,9 +344,8 @@ impl ContextStore {
                             }
                         });
                         true
-                    } else {
-                        false
                     }
+                    _ => false,
                 });
                 self.host_contexts.clear();
                 cx.notify();
@@ -422,13 +420,14 @@ impl ContextStore {
                 .await?;
             context.update(cx, |context, cx| context.apply_ops(operations, cx))?;
             this.update(cx, |this, cx| {
-                if let Some(existing_context) = this.loaded_context_for_id(&context_id, cx) {
+                match this.loaded_context_for_id(&context_id, cx) {
-                    existing_context
+                    Some(existing_context) => existing_context,
-                } else {
+                    _ => {
                         this.register_context(&context, cx);
                         this.synchronize_contexts(cx);
                         context
                     }
+                }
             })
         })
     }
@@ -471,12 +470,13 @@ impl ContextStore {
                 )
             })?;
             this.update(cx, |this, cx| {
-                if let Some(existing_context) = this.loaded_context_for_path(&path, cx) {
+                match this.loaded_context_for_path(&path, cx) {
-                    existing_context
+                    Some(existing_context) => existing_context,
-                } else {
+                    _ => {
                         this.register_context(&context, cx);
                         context
                     }
+                }
             })
         })
     }
@@ -591,13 +591,14 @@ impl ContextStore {
                 .await?;
             context.update(cx, |context, cx| context.apply_ops(operations, cx))?;
             this.update(cx, |this, cx| {
-                if let Some(existing_context) = this.loaded_context_for_id(&context_id, cx) {
+                match this.loaded_context_for_id(&context_id, cx) {
-                    existing_context
+                    Some(existing_context) => existing_context,
-                } else {
+                    _ => {
                         this.register_context(&context, cx);
                         this.synchronize_contexts(cx);
                         context
                     }
+                }
             })
         })
     }

crates/assistant_context_editor/src/slash_command.rs

@@ -151,7 +151,8 @@ impl SlashCommandCompletionProvider {
         let mut flag = self.cancel_flag.lock();
         flag.store(true, SeqCst);
         *flag = new_cancel_flag.clone();
-        if let Some(command) = self.slash_commands.command(command_name, cx) {
+        match self.slash_commands.command(command_name, cx) {
+            Some(command) => {
                 let completions = command.complete_argument(
                     arguments,
                     new_cancel_flag.clone(),
@@ -169,11 +170,8 @@ impl SlashCommandCompletionProvider {
                             .await?
                             .into_iter()
                             .map(|new_argument| {
-                            let confirm =
+                                let confirm = editor.clone().zip(workspace.clone()).map(
-                                editor
+                                    |(editor, workspace)| {
-                                    .clone()
-                                    .zip(workspace.clone())
-                                    .map(|(editor, workspace)| {
                                         Arc::new({
                                             let mut completed_arguments = arguments.clone();
                                             if new_argument.replace_previous_arguments {
@@ -210,7 +208,8 @@ impl SlashCommandCompletionProvider {
                                             }
                                         }
                                         }) as Arc<_>
-                                    });
+                                    },
+                                );
 
                                 let mut new_text = new_argument.new_text.clone();
                                 if new_argument.after_completion == AfterCompletion::Continue {
@@ -234,8 +233,8 @@ impl SlashCommandCompletionProvider {
                             .collect(),
                     ))
                 })
-        } else {
+            }
-            Task::ready(Ok(Some(Vec::new())))
+            _ => Task::ready(Ok(Some(Vec::new()))),
         }
     }
 }
@@ -333,10 +332,9 @@ impl CompletionProvider for SlashCommandCompletionProvider {
         let position = position.to_point(buffer);
         let line_start = Point::new(position.row, 0);
         let mut lines = buffer.text_for_range(line_start..position).lines();
-        if let Some(line) = lines.next() {
+        match lines.next() {
-            SlashCommandLine::parse(line).is_some()
+            Some(line) => SlashCommandLine::parse(line).is_some(),
-        } else {
+            _ => false,
-            false
         }
     }
 

crates/assistant_settings/src/assistant_settings.rs

@@ -105,8 +105,8 @@ impl JsonSchema for AssistantSettingsContent {
         VersionedAssistantSettingsContent::schema_name()
     }
 
-    fn json_schema(gen: &mut schemars::gen::SchemaGenerator) -> Schema {
+    fn json_schema(r#gen: &mut schemars::r#gen::SchemaGenerator) -> Schema {
-        VersionedAssistantSettingsContent::json_schema(gen)
+        VersionedAssistantSettingsContent::json_schema(r#gen)
     }
 
     fn is_referenceable() -> bool {
@@ -416,7 +416,7 @@ pub struct LanguageModelSelection {
     pub model: String,
 }
 
-fn providers_schema(_: &mut schemars::gen::SchemaGenerator) -> schemars::schema::Schema {
+fn providers_schema(_: &mut schemars::r#gen::SchemaGenerator) -> schemars::schema::Schema {
     schemars::schema::SchemaObject {
         enum_values: Some(vec![
             "anthropic".into(),

crates/assistant_slash_commands/src/context_server_command.rs

@@ -88,8 +88,8 @@ impl SlashCommand for ContextServerSlashCommand {
         let server_id = self.server_id.clone();
         let prompt_name = self.prompt.name.clone();
 
-        if let Some(server) = self.server_manager.read(cx).get_server(&server_id) {
+        match self.server_manager.read(cx).get_server(&server_id) {
-            cx.foreground_executor().spawn(async move {
+            Some(server) => cx.foreground_executor().spawn(async move {
                 let Some(protocol) = server.client() else {
                     return Err(anyhow!("Context server not initialized"));
                 };
@@ -118,9 +118,8 @@ impl SlashCommand for ContextServerSlashCommand {
                     })
                     .collect();
                 Ok(completions)
-            })
+            }),
-        } else {
+            _ => Task::ready(Err(anyhow!("Context server not found"))),
-            Task::ready(Err(anyhow!("Context server not found")))
         }
     }
 
@@ -143,7 +142,8 @@ impl SlashCommand for ContextServerSlashCommand {
         };
 
         let manager = self.server_manager.read(cx);
-        if let Some(server) = manager.get_server(&server_id) {
+        match manager.get_server(&server_id) {
+            Some(server) => {
                 cx.foreground_executor().spawn(async move {
                     let Some(protocol) = server.client() else {
                         return Err(anyhow!("Context server not initialized"));
@@ -191,8 +191,8 @@ impl SlashCommand for ContextServerSlashCommand {
                     }
                     .to_event_stream())
                 })
-        } else {
+            }
-            Task::ready(Err(anyhow!("Context server not found")))
+            _ => Task::ready(Err(anyhow!("Context server not found"))),
         }
     }
 }

crates/assistant_slash_commands/src/diagnostics_command.rs

@@ -229,19 +229,20 @@ fn collect_diagnostics(
     options: Options,
     cx: &mut App,
 ) -> Task<Result<Option<SlashCommandOutput>>> {
-    let error_source = if let Some(path_matcher) = &options.path_matcher {
+    let error_source = match &options.path_matcher {
+        Some(path_matcher) => {
             debug_assert_eq!(path_matcher.sources().len(), 1);
             Some(path_matcher.sources().first().cloned().unwrap_or_default())
-    } else {
+        }
-        None
+        _ => None,
     };
 
-    let glob_is_exact_file_match = if let Some(path) = options
+    let glob_is_exact_file_match = match options
         .path_matcher
         .as_ref()
         .and_then(|pm| pm.sources().first())
     {
-        PathBuf::try_from(path)
+        Some(path) => PathBuf::try_from(path)
             .ok()
             .and_then(|path| {
                 project.read(cx).worktrees(cx).find_map(|worktree| {
@@ -251,9 +252,8 @@ fn collect_diagnostics(
                     worktree.absolutize(&relative_path).ok()
                 })
             })
-            .is_some()
+            .is_some(),
-    } else {
+        _ => false,
-        false
     };
 
     let project_handle = project.downgrade();

crates/assistant_slash_commands/src/file_command.rs

@@ -221,7 +221,7 @@ fn collect_files(
     project: Entity<Project>,
     glob_inputs: &[String],
     cx: &mut App,
-) -> impl Stream<Item = Result<SlashCommandEvent>> {
+) -> impl Stream<Item = Result<SlashCommandEvent>> + use<> {
     let Ok(matchers) = glob_inputs
         .into_iter()
         .map(|glob_input| {
@@ -285,7 +285,8 @@ fn collect_files(
                 if entry.is_dir() {
                     // Auto-fold directories that contain no files
                     let mut child_entries = snapshot.child_entries(&entry.path);
-                    if let Some(child) = child_entries.next() {
+                    match child_entries.next() {
+                        Some(child) => {
                             if child_entries.next().is_none() && child.kind.is_dir() {
                                 if is_top_level_directory {
                                     is_top_level_directory = false;
@@ -297,11 +298,13 @@ fn collect_files(
                                 }
                                 continue;
                             }
-                    } else {
+                        }
+                        _ => {
                             // Skip empty directories
                             folded_directory_names_stack.clear();
                             continue;
                         }
+                    }
                     let prefix_paths = folded_directory_names_stack.drain(..).as_slice().join("/");
                     if prefix_paths.is_empty() {
                         let label = if is_top_level_directory {

crates/assistant_tools/src/code_symbols_tool.rs

@@ -218,12 +218,9 @@ async fn project_symbols(
 
     for symbol in symbols
         .iter()
-        .filter(|symbol| {
+        .filter(|symbol| match &regex {
-            if let Some(regex) = &regex {
+            Some(regex) => regex.is_match(&symbol.name),
-                regex.is_match(&symbol.name)
+            _ => true,
-            } else {
-                true
-            }
         })
         .skip(offset as usize)
         // Take 1 more than RESULTS_PER_PAGE so we can tell if there are more results.
@@ -316,13 +313,12 @@ async fn render_outline(
                 .collect();
 
             let lang_name = lang.name();
-            if let Some(lsp_adapter) = registry.lsp_adapters(&lang_name).first().cloned() {
+            match registry.lsp_adapters(&lang_name).first().cloned() {
-                lsp_adapter
+                Some(lsp_adapter) => lsp_adapter
                     .labels_for_symbols(&entries_for_labels, lang)
                     .await
-                    .ok()
+                    .ok(),
-            } else {
+                _ => None,
-                None
             }
         }
         None => None,

crates/assistant_tools/src/diagnostics_tool.rs

@@ -63,16 +63,16 @@ impl Tool for DiagnosticsTool {
     }
 
     fn ui_text(&self, input: &serde_json::Value) -> String {
-        if let Some(path) = serde_json::from_value::<DiagnosticsToolInput>(input.clone())
+        match serde_json::from_value::<DiagnosticsToolInput>(input.clone())
             .ok()
             .and_then(|input| match input.path {
                 Some(path) if !path.is_empty() => Some(MarkdownString::inline_code(&path)),
                 _ => None,
-            })
+            }) {
-        {
+            Some(path) => {
                 format!("Check diagnostics for {path}")
-        } else {
+            }
-            "Check project diagnostics".to_string()
+            _ => "Check project diagnostics".to_string(),
         }
     }
 

crates/assistant_tools/src/find_replace_file_tool.rs

@@ -188,7 +188,7 @@ impl Tool for FindReplaceFileTool {
                 })
                 .await;
 
-            if let Some(diff) = result {
+            match result { Some(diff) => {
                 let edit_ids = buffer.update(cx, |buffer, cx| {
                     buffer.finalize_last_transaction();
                     buffer.apply_diff(diff, false, cx);
@@ -205,7 +205,7 @@ impl Tool for FindReplaceFileTool {
                 })?.await?;
 
                 Ok(format!("Edited {}", input.path.display()))
-            } else {
+            } _ => {
                 let err = buffer.read_with(cx, |buffer, _cx| {
                     let file_exists = buffer
                         .file()
@@ -224,7 +224,7 @@ impl Tool for FindReplaceFileTool {
                 })?;
 
                 Err(err)
-            }
+            }}
         })
     }
 }

crates/audio/src/assets.rs

@@ -35,7 +35,7 @@ impl SoundRegistry {
         cx.set_global(GlobalSoundRegistry(SoundRegistry::new(source)));
     }
 
-    pub fn get(&self, name: &str) -> Result<impl Source<Item = f32>> {
+    pub fn get(&self, name: &str) -> Result<impl Source<Item = f32> + use<>> {
         if let Some(wav) = self.cache.lock().get(name) {
             return Ok(wav.clone());
         }

crates/auto_update/src/auto_update.rs

@@ -201,9 +201,11 @@ pub fn check(_: &Check, window: &mut Window, cx: &mut App) {
         return;
     }
 
-    if let Some(updater) = AutoUpdater::get(cx) {
+    match AutoUpdater::get(cx) {
+        Some(updater) => {
             updater.update(cx, |updater, cx| updater.poll(cx));
-    } else {
+        }
+        _ => {
             drop(window.prompt(
                 gpui::PromptLevel::Info,
                 "Could not check for updates",
@@ -213,6 +215,7 @@ pub fn check(_: &Check, window: &mut Window, cx: &mut App) {
             ));
         }
     }
+}
 
 pub fn view_release_notes(_: &ViewReleaseNotes, cx: &mut App) -> Option<()> {
     let auto_updater = AutoUpdater::get(cx)?;

crates/breadcrumbs/src/breadcrumbs.rs

@@ -110,8 +110,8 @@ impl Render for Breadcrumbs {
                             }
                         }
                     })
-                    .tooltip(move |window, cx| {
+                    .tooltip(move |window, cx| match editor.upgrade() {
-                        if let Some(editor) = editor.upgrade() {
+                        Some(editor) => {
                             let focus_handle = editor.read(cx).focus_handle(cx);
                             Tooltip::for_action_in(
                                 "Show Symbol Outline",
@@ -120,14 +120,13 @@ impl Render for Breadcrumbs {
                                 window,
                                 cx,
                             )
-                        } else {
+                        }
-                            Tooltip::for_action(
+                        _ => Tooltip::for_action(
                             "Show Symbol Outline",
                             &zed_actions::outline::ToggleOutline,
                             window,
                             cx,
-                            )
+                        ),
-                        }
                     }),
             ),
             None => element

crates/buffer_diff/src/buffer_diff.rs

@@ -608,7 +608,8 @@ fn compute_hunks(
 ) -> SumTree<InternalDiffHunk> {
     let mut tree = SumTree::new(&buffer);
 
-    if let Some((diff_base, diff_base_rope)) = diff_base {
+    match diff_base {
+        Some((diff_base, diff_base_rope)) => {
             let buffer_text = buffer.as_rope().to_string();
 
             let mut options = GitOptions::default();
@@ -649,7 +650,8 @@ fn compute_hunks(
                     tree.push(hunk, &buffer);
                 }
             }
-    } else {
+        }
+        _ => {
             tree.push(
                 InternalDiffHunk {
                     buffer_range: Anchor::MIN..Anchor::MAX,
@@ -658,6 +660,7 @@ fn compute_hunks(
                 &buffer,
             );
         }
+    }
 
     tree
 }
@@ -776,7 +779,7 @@ impl BufferDiff {
         language: Option<Arc<Language>>,
         language_registry: Option<Arc<LanguageRegistry>>,
         cx: &mut App,
-    ) -> impl Future<Output = BufferDiffInner> {
+    ) -> impl Future<Output = BufferDiffInner> + use<> {
         let base_text_pair;
         let base_text_exists;
         let base_text_snapshot;
@@ -818,7 +821,7 @@ impl BufferDiff {
         base_text: Option<Arc<String>>,
         base_text_snapshot: language::BufferSnapshot,
         cx: &App,
-    ) -> impl Future<Output = BufferDiffInner> {
+    ) -> impl Future<Output = BufferDiffInner> + use<> {
         let base_text_exists = base_text.is_some();
         let base_text_pair = base_text.map(|text| (text, base_text_snapshot.as_rope().clone()));
         cx.background_spawn(async move {
@@ -2071,7 +2074,7 @@ mod tests {
             )
         });
         let working_copy = working_copy.read_with(cx, |working_copy, _| working_copy.snapshot());
-        let mut index_text = if rng.gen() {
+        let mut index_text = if rng.r#gen() {
             Rope::from(head_text.as_str())
         } else {
             working_copy.as_rope().clone()

crates/call/src/call_impl/mod.rs

@@ -179,23 +179,21 @@ impl ActiveCall {
             return Task::ready(Ok(()));
         }
 
-        let room = if let Some(room) = self.room().cloned() {
+        let room = match self.room().cloned() {
-            Some(Task::ready(Ok(room)).shared())
+            Some(room) => Some(Task::ready(Ok(room)).shared()),
-        } else {
+            _ => self.pending_room_creation.clone(),
-            self.pending_room_creation.clone()
         };
 
-        let invite = if let Some(room) = room {
+        let invite = match room {
-            cx.spawn(async move |_, cx| {
+            Some(room) => cx.spawn(async move |_, cx| {
                 let room = room.await.map_err(|err| anyhow!("{:?}", err))?;
 
-                let initial_project_id = if let Some(initial_project) = initial_project {
+                let initial_project_id = match initial_project {
-                    Some(
+                    Some(initial_project) => Some(
                         room.update(cx, |room, cx| room.share_project(initial_project, cx))?
                             .await?,
-                    )
+                    ),
-                } else {
+                    _ => None,
-                    None
                 };
 
                 room.update(cx, move |room, cx| {
@@ -204,8 +202,8 @@ impl ActiveCall {
                 .await?;
 
                 anyhow::Ok(())
-            })
+            }),
-        } else {
+            _ => {
                 let client = self.client.clone();
                 let user_store = self.user_store.clone();
                 let room = cx
@@ -239,6 +237,7 @@ impl ActiveCall {
                     room.await.map_err(|err| anyhow!("{:?}", err))?;
                     anyhow::Ok(())
                 })
+            }
         };
 
         cx.spawn(async move |this, cx| {
@@ -292,10 +291,11 @@ impl ActiveCall {
             return Task::ready(Err(anyhow!("cannot join while on another call")));
         }
 
-        let call = if let Some(call) = self.incoming_call.0.borrow_mut().take() {
+        let call = match self.incoming_call.0.borrow_mut().take() {
-            call
+            Some(call) => call,
-        } else {
+            _ => {
                 return Task::ready(Err(anyhow!("no incoming call")));
+            }
         };
 
         if self.pending_room_creation.is_some() {
@@ -373,11 +373,12 @@ impl ActiveCall {
         Audio::end_call(cx);
 
         let channel_id = self.channel_id(cx);
-        if let Some((room, _)) = self.room.take() {
+        match self.room.take() {
+            Some((room, _)) => {
                 cx.emit(Event::RoomLeft { channel_id });
                 room.update(cx, |room, cx| room.leave(cx))
-        } else {
+            }
-            Task::ready(Ok(()))
+            _ => Task::ready(Ok(())),
         }
     }
 
@@ -386,11 +387,12 @@ impl ActiveCall {
         project: Entity<Project>,
         cx: &mut Context<Self>,
     ) -> Task<Result<u64>> {
-        if let Some((room, _)) = self.room.as_ref() {
+        match self.room.as_ref() {
+            Some((room, _)) => {
                 self.report_call_event("Project Shared", cx);
                 room.update(cx, |room, cx| room.share_project(project, cx))
-        } else {
+            }
-            Task::ready(Err(anyhow!("no active call")))
+            _ => Task::ready(Err(anyhow!("no active call"))),
         }
     }
 
@@ -399,11 +401,12 @@ impl ActiveCall {
         project: Entity<Project>,
         cx: &mut Context<Self>,
     ) -> Result<()> {
-        if let Some((room, _)) = self.room.as_ref() {
+        match self.room.as_ref() {
+            Some((room, _)) => {
                 self.report_call_event("Project Unshared", cx);
                 room.update(cx, |room, cx| room.unshare_project(project, cx))
-        } else {
+            }
-            Err(anyhow!("no active call"))
+            _ => Err(anyhow!("no active call")),
         }
     }
 
@@ -430,7 +433,8 @@ impl ActiveCall {
             Task::ready(Ok(()))
         } else {
             cx.notify();
-            if let Some(room) = room {
+            match room {
+                Some(room) => {
                     if room.read(cx).status().is_offline() {
                         self.room = None;
                         Task::ready(Ok(()))
@@ -454,12 +458,14 @@ impl ActiveCall {
                         cx.emit(Event::RoomJoined { channel_id });
                         room.update(cx, |room, cx| room.set_location(location.as_ref(), cx))
                     }
-            } else {
+                }
+                _ => {
                     self.room = None;
                     Task::ready(Ok(()))
                 }
             }
         }
+    }
 
     pub fn room(&self) -> Option<&Entity<Room>> {
         self.room.as_ref().map(|(room, _)| room)

crates/call/src/call_impl/room.rs

@@ -96,10 +96,11 @@ impl Room {
     }
 
     pub fn is_connected(&self, _: &App) -> bool {
-        if let Some(live_kit) = self.live_kit.as_ref() {
+        match self.live_kit.as_ref() {
+            Some(live_kit) => {
                 live_kit.room.connection_state() == livekit::ConnectionState::Connected
-        } else {
+            }
-            false
+            _ => false,
         }
     }
 
@@ -181,15 +182,16 @@ impl Room {
                 room
             })?;
 
-            let initial_project_id = if let Some(initial_project) = initial_project {
+            let initial_project_id = match initial_project {
+                Some(initial_project) => {
                     let initial_project_id = room
                         .update(cx, |room, cx| {
                             room.share_project(initial_project.clone(), cx)
                         })?
                         .await?;
                     Some(initial_project_id)
-            } else {
+                }
-                None
+                _ => None,
             };
 
             let did_join = room
@@ -243,7 +245,7 @@ impl Room {
         }
     }
 
-    fn app_will_quit(&mut self, cx: &mut Context<Self>) -> impl Future<Output = ()> {
+    fn app_will_quit(&mut self, cx: &mut Context<Self>) -> impl Future<Output = ()> + use<> {
         let task = if self.status.is_online() {
             let leave = self.leave_internal(cx);
             Some(cx.background_spawn(async move {
@@ -665,7 +667,7 @@ impl Room {
         Ok(())
     }
 
-    pub fn room_update_completed(&mut self) -> impl Future<Output = ()> {
+    pub fn room_update_completed(&mut self) -> impl Future<Output = ()> + use<> {
         let mut done_rx = self.room_update_completed_rx.clone();
         async move {
             while let Some(result) = done_rx.next().await {
@@ -728,13 +730,13 @@ impl Room {
                             }
                         }
 
-                        this.joined_projects.retain(|project| {
+                        this.joined_projects
-                            if let Some(project) = project.upgrade() {
+                            .retain(|project| match project.upgrade() {
+                                Some(project) => {
                                     project.update(cx, |project, cx| project.set_role(role, cx));
                                     true
-                            } else {
-                                false
                                 }
+                                _ => false,
                             });
                     }
                 } else {
@@ -778,19 +780,17 @@ impl Room {
                         }
 
                         for unshared_project_id in old_projects.difference(&new_projects) {
-                            this.joined_projects.retain(|project| {
+                            this.joined_projects
-                                if let Some(project) = project.upgrade() {
+                                .retain(|project| match project.upgrade() {
-                                    project.update(cx, |project, cx| {
+                                    Some(project) => project.update(cx, |project, cx| {
                                         if project.remote_id() == Some(*unshared_project_id) {
                                             project.disconnected_from_host(cx);
                                             false
                                         } else {
                                             true
                                         }
-                                    })
+                                    }),
-                                } else {
+                                    _ => false,
-                                    false
-                                }
                                 });
                             cx.emit(Event::RemoteProjectUnshared {
                                 project_id: *unshared_project_id,
@@ -800,9 +800,8 @@ impl Room {
                         let role = participant.role();
                         let location = ParticipantLocation::from_proto(participant.location)
                             .unwrap_or(ParticipantLocation::External);
-                        if let Some(remote_participant) =
+                        match this.remote_participants.get_mut(&participant.user_id) {
-                            this.remote_participants.get_mut(&participant.user_id)
+                            Some(remote_participant) => {
-                        {
                                 remote_participant.peer_id = peer_id;
                                 remote_participant.projects = participant.projects;
                                 remote_participant.participant_index = participant_index;
@@ -815,7 +814,8 @@ impl Room {
                                         participant_id: peer_id,
                                     });
                                 }
-                        } else {
+                            }
+                            _ => {
                                 this.remote_participants.insert(
                                     participant.user_id,
                                     RemoteParticipant {
@@ -856,6 +856,7 @@ impl Room {
                                 }
                             }
                         }
+                    }
 
                     this.remote_participants.retain(|user_id, participant| {
                         if this.participant_user_ids.contains(user_id) {
@@ -1141,12 +1142,10 @@ impl Room {
                 Project::in_room(id, client, user_store, language_registry, fs, cx.clone()).await?;
 
             this.update(cx, |this, cx| {
-                this.joined_projects.retain(|project| {
+                this.joined_projects
-                    if let Some(project) = project.upgrade() {
+                    .retain(|project| match project.upgrade() {
-                        !project.read(cx).is_disconnected(cx)
+                        Some(project) => !project.read(cx).is_disconnected(cx),
-                    } else {
+                        _ => false,
-                        false
-                    }
                     });
                 this.joined_projects.insert(project.downgrade());
             })?;
@@ -1309,13 +1308,16 @@ impl Room {
             return Task::ready(Err(anyhow!("room is offline")));
         }
 
-        let (room, publish_id) = if let Some(live_kit) = self.live_kit.as_mut() {
+        let (room, publish_id) = match self.live_kit.as_mut() {
+            Some(live_kit) => {
                 let publish_id = post_inc(&mut live_kit.next_publish_id);
                 live_kit.microphone_track = LocalTrack::Pending { publish_id };
                 cx.notify();
                 (live_kit.room.clone(), publish_id)
-        } else {
+            }
+            _ => {
                 return Task::ready(Err(anyhow!("live-kit was not initialized")));
+            }
         };
 
         cx.spawn(async move |this, cx| {
@@ -1326,13 +1328,11 @@ impl Room {
                     .as_mut()
                     .ok_or_else(|| anyhow!("live-kit was not initialized"))?;
 
-                let canceled = if let LocalTrack::Pending {
+                let canceled = match &live_kit.microphone_track {
+                    LocalTrack::Pending {
                         publish_id: cur_publish_id,
-                } = &live_kit.microphone_track
+                    } => *cur_publish_id != publish_id,
-                {
+                    _ => true,
-                    *cur_publish_id != publish_id
-                } else {
-                    true
                 };
 
                 match publication {
@@ -1376,13 +1376,16 @@ impl Room {
             return Task::ready(Err(anyhow!("screen was already shared")));
         }
 
-        let (participant, publish_id) = if let Some(live_kit) = self.live_kit.as_mut() {
+        let (participant, publish_id) = match self.live_kit.as_mut() {
+            Some(live_kit) => {
                 let publish_id = post_inc(&mut live_kit.next_publish_id);
                 live_kit.screen_track = LocalTrack::Pending { publish_id };
                 cx.notify();
                 (live_kit.room.local_participant(), publish_id)
-        } else {
+            }
+            _ => {
                 return Task::ready(Err(anyhow!("live-kit was not initialized")));
+            }
         };
 
         let sources = cx.screen_capture_sources();
@@ -1399,13 +1402,11 @@ impl Room {
                     .as_mut()
                     .ok_or_else(|| anyhow!("live-kit was not initialized"))?;
 
-                let canceled = if let LocalTrack::Pending {
+                let canceled = match &live_kit.screen_track {
+                    LocalTrack::Pending {
                         publish_id: cur_publish_id,
-                } = &live_kit.screen_track
+                    } => *cur_publish_id != publish_id,
-                {
+                    _ => true,
-                    *cur_publish_id != publish_id
-                } else {
-                    true
                 };
 
                 match publication {

crates/channel/src/channel_chat.rs

@@ -183,7 +183,7 @@ impl ChannelChat {
 
         let channel_id = self.channel_id;
         let pending_id = ChannelMessageId::Pending(post_inc(&mut self.next_pending_message_id));
-        let nonce = self.rng.gen();
+        let nonce = self.rng.r#gen();
         self.insert_messages(
             SumTree::from_item(
                 ChannelMessage {
@@ -257,7 +257,7 @@ impl ChannelChat {
             cx,
         );
 
-        let nonce: u128 = self.rng.gen();
+        let nonce: u128 = self.rng.r#gen();
 
         let request = self.rpc.request(proto::UpdateChannelMessage {
             channel_id: self.channel_id.0,

crates/channel/src/channel_store.rs

@@ -329,17 +329,16 @@ impl ChannelStore {
                     .request(proto::GetChannelMessagesById { message_ids }),
             )
         };
-        cx.spawn(async move |this, cx| {
+        cx.spawn(async move |this, cx| match request {
-            if let Some(request) = request {
+            Some(request) => {
                 let response = request.await?;
                 let this = this
                     .upgrade()
                     .ok_or_else(|| anyhow!("channel store dropped"))?;
                 let user_store = this.update(cx, |this, _| this.user_store.clone())?;
                 ChannelMessage::from_proto_vec(response.messages, &user_store, cx).await
-            } else {
-                Ok(Vec::new())
             }
+            _ => Ok(Vec::new()),
         })
     }
 
@@ -465,14 +464,15 @@ impl ChannelStore {
         let task = loop {
             match get_map(self).entry(channel_id) {
                 hash_map::Entry::Occupied(e) => match e.get() {
-                    OpenEntityHandle::Open(entity) => {
+                    OpenEntityHandle::Open(entity) => match entity.upgrade() {
-                        if let Some(entity) = entity.upgrade() {
+                        Some(entity) => {
                             break Task::ready(Ok(entity)).shared();
-                        } else {
+                        }
+                        _ => {
                             get_map(self).remove(&channel_id);
                             continue;
                         }
-                    }
+                    },
                     OpenEntityHandle::Loading(task) => {
                         break task.clone();
                     }
@@ -824,7 +824,10 @@ impl ChannelStore {
         })
     }
 
-    pub fn remove_channel(&self, channel_id: ChannelId) -> impl Future<Output = Result<()>> {
+    pub fn remove_channel(
+        &self,
+        channel_id: ChannelId,
+    ) -> impl Future<Output = Result<()>> + use<> {
         let client = self.client.clone();
         async move {
             client

crates/cli/src/main.rs

@@ -228,13 +228,16 @@ fn main() -> Result<()> {
             paths.push(file.path().to_string_lossy().to_string());
             let (file, _) = file.keep()?;
             stdin_tmp_file = Some(file);
-        } else if let Some(file) = anonymous_fd(path) {
+        } else {
+            match anonymous_fd(path) {
+                Some(file) => {
                     let tmp_file = NamedTempFile::new()?;
                     paths.push(tmp_file.path().to_string_lossy().to_string());
                     let (tmp_file, _) = tmp_file.keep()?;
                     anonymous_fd_tmp_files.push((file, tmp_file));
-        } else {
+                }
-            paths.push(parse_path_with_position(path)?)
+                _ => paths.push(parse_path_with_position(path)?),
+            }
         }
     }
 
@@ -775,7 +778,7 @@ mod mac_os {
     }
 
     impl Detect {
-        pub fn detect(path: Option<&Path>) -> anyhow::Result<impl InstalledApp> {
+        pub fn detect(path: Option<&Path>) -> anyhow::Result<impl InstalledApp + use<>> {
             let bundle_path = if let Some(bundle_path) = path {
                 bundle_path
                     .canonicalize()

crates/client/src/client.rs

@@ -618,10 +618,9 @@ impl Client {
     }
 
     pub fn peer_id(&self) -> Option<PeerId> {
-        if let Status::Connected { peer_id, .. } = &*self.status().borrow() {
+        match &*self.status().borrow() {
-            Some(*peer_id)
+            Status::Connected { peer_id, .. } => Some(*peer_id),
-        } else {
+            _ => None,
-            None
         }
     }
 
@@ -1024,7 +1023,7 @@ impl Client {
         &self,
         http: Arc<HttpClientWithUrl>,
         release_channel: Option<ReleaseChannel>,
-    ) -> impl Future<Output = Result<url::Url>> {
+    ) -> impl Future<Output = Result<url::Url>> + use<> {
         #[cfg(any(test, feature = "test-support"))]
         let url_override = self.rpc_url.read().clone();
 
@@ -1429,10 +1428,9 @@ impl Client {
     }
 
     fn connection_id(&self) -> Result<ConnectionId> {
-        if let Status::Connected { connection_id, .. } = *self.status().borrow() {
+        match *self.status().borrow() {
-            Ok(connection_id)
+            Status::Connected { connection_id, .. } => Ok(connection_id),
-        } else {
+            _ => Err(anyhow!("not connected")),
-            Err(anyhow!("not connected"))
         }
     }
 
@@ -1444,7 +1442,7 @@ impl Client {
     pub fn request<T: RequestMessage>(
         &self,
         request: T,
-    ) -> impl Future<Output = Result<T::Response>> {
+    ) -> impl Future<Output = Result<T::Response>> + use<T> {
         self.request_envelope(request)
             .map_ok(|envelope| envelope.payload)
     }
@@ -1452,7 +1450,8 @@ impl Client {
     pub fn request_stream<T: RequestMessage>(
         &self,
         request: T,
-    ) -> impl Future<Output = Result<impl Stream<Item = Result<T::Response>>>> {
+    ) -> impl Future<Output = Result<impl Stream<Item = Result<T::Response>> + use<T>>> + use<T>
+    {
         let client_id = self.id.load(Ordering::SeqCst);
         log::debug!(
             "rpc request start. client_id:{}. name:{}",
@@ -1476,7 +1475,7 @@ impl Client {
     pub fn request_envelope<T: RequestMessage>(
         &self,
         request: T,
-    ) -> impl Future<Output = Result<TypedEnvelope<T::Response>>> {
+    ) -> impl Future<Output = Result<TypedEnvelope<T::Response>>> + use<T> {
         let client_id = self.id();
         log::debug!(
             "rpc request start. client_id:{}. name:{}",
@@ -1501,7 +1500,7 @@ impl Client {
         &self,
         envelope: proto::Envelope,
         request_type: &'static str,
-    ) -> impl Future<Output = Result<proto::Envelope>> {
+    ) -> impl Future<Output = Result<proto::Envelope>> + use<> {
         let client_id = self.id();
         log::debug!(
             "rpc request start. client_id:{}. name:{}",
@@ -1528,12 +1527,13 @@ impl Client {
         let type_name = message.payload_type_name();
         let original_sender_id = message.original_sender_id();
 
-        if let Some(future) = ProtoMessageHandlerSet::handle_message(
+        match ProtoMessageHandlerSet::handle_message(
             &self.handler_set,
             message,
             self.clone().into(),
             cx.clone(),
         ) {
+            Some(future) => {
                 let client_id = self.id();
                 log::debug!(
                     "rpc message received. client_id:{}, sender_id:{:?}, type:{}",
@@ -1561,13 +1561,15 @@ impl Client {
                     }
                 })
                 .detach();
-        } else {
+            }
+            _ => {
                 log::info!("unhandled message {}", type_name);
                 self.peer
                     .respond_with_unhandled_message(sender_id.into(), request_id, type_name)
                     .log_err();
             }
         }
+    }
 
     pub fn telemetry(&self) -> &Arc<Telemetry> {
         &self.telemetry

crates/client/src/telemetry.rs

@@ -273,7 +273,7 @@ impl Telemetry {
     }
 
     #[cfg(any(test, feature = "test-support"))]
-    fn shutdown_telemetry(self: &Arc<Self>) -> impl Future<Output = ()> {
+    fn shutdown_telemetry(self: &Arc<Self>) -> impl Future<Output = ()> + use<> {
         Task::ready(())
     }
 

crates/client/src/user.rs

@@ -171,13 +171,15 @@ impl UserStore {
             _maintain_contacts: cx.spawn(async move |this, cx| {
                 let _subscriptions = rpc_subscriptions;
                 while let Some(message) = update_contacts_rx.next().await {
-                    if let Ok(task) = this.update(cx, |this, cx| this.update_contacts(message, cx))
+                    match this.update(cx, |this, cx| this.update_contacts(message, cx)) {
-                    {
+                        Ok(task) => {
                             task.log_err().await;
-                    } else {
+                        }
+                        _ => {
                             break;
                         }
                     }
+                }
             }),
             _maintain_current_user: cx.spawn(async move |this, cx| {
                 let mut status = client.status();
@@ -191,12 +193,13 @@ impl UserStore {
                     match status {
                         Status::Connected { .. } => {
                             if let Some(user_id) = client.user_id() {
-                                let fetch_user = if let Ok(fetch_user) =
+                                let fetch_user = match this
-                                    this.update(cx, |this, cx| this.get_user(user_id, cx).log_err())
+                                    .update(cx, |this, cx| this.get_user(user_id, cx).log_err())
                                 {
-                                    fetch_user
+                                    Ok(fetch_user) => fetch_user,
-                                } else {
+                                    _ => {
                                         break;
+                                    }
                                 };
                                 let fetch_private_user_info =
                                     client.request(proto::GetPrivateUserInfo {}).log_err();
@@ -581,7 +584,7 @@ impl UserStore {
         })
     }
 
-    pub fn clear_contacts(&self) -> impl Future<Output = ()> {
+    pub fn clear_contacts(&self) -> impl Future<Output = ()> + use<> {
         let (tx, mut rx) = postage::barrier::channel();
         self.update_contacts_tx
             .unbounded_send(UpdateContacts::Clear(tx))
@@ -591,7 +594,7 @@ impl UserStore {
         }
     }
 
-    pub fn contact_updates_done(&self) -> impl Future<Output = ()> {
+    pub fn contact_updates_done(&self) -> impl Future<Output = ()> + use<> {
         let (tx, mut rx) = postage::barrier::channel();
         self.update_contacts_tx
             .unbounded_send(UpdateContacts::Wait(tx))
@@ -703,8 +706,8 @@ impl UserStore {
         };
 
         let client = self.client.clone();
-        cx.spawn(async move |this, cx| {
+        cx.spawn(async move |this, cx| match client.upgrade() {
-            if let Some(client) = client.upgrade() {
+            Some(client) => {
                 let response = client
                     .request(proto::AcceptTermsOfService {})
                     .await
@@ -714,9 +717,8 @@ impl UserStore {
                     this.set_current_user_accepted_tos_at(Some(response.accepted_tos_at));
                     cx.emit(Event::PrivateUserInfoUpdated);
                 })
-            } else {
-                Err(anyhow!("client not found"))
             }
+            _ => Err(anyhow!("client not found")),
         })
     }
 
@@ -732,15 +734,14 @@ impl UserStore {
         cx: &Context<Self>,
     ) -> Task<Result<Vec<Arc<User>>>> {
         let client = self.client.clone();
-        cx.spawn(async move |this, cx| {
+        cx.spawn(async move |this, cx| match client.upgrade() {
-            if let Some(rpc) = client.upgrade() {
+            Some(rpc) => {
                 let response = rpc.request(request).await.context("error loading users")?;
                 let users = response.users;
 
                 this.update(cx, |this, _| this.insert(users))
-            } else {
-                Ok(Vec::new())
             }
+            _ => Ok(Vec::new()),
         })
     }
 

crates/collab/src/api.rs

@@ -219,14 +219,17 @@ async fn create_access_token(
     let mut impersonated_user_id = None;
     if let Some(impersonate) = params.impersonate {
         if user.admin {
-            if let Some(impersonated_user) = app.db.get_user_by_github_login(&impersonate).await? {
+            match app.db.get_user_by_github_login(&impersonate).await? {
+                Some(impersonated_user) => {
                     impersonated_user_id = Some(impersonated_user.id);
-            } else {
+                }
+                _ => {
                     return Err(Error::http(
                         StatusCode::UNPROCESSABLE_ENTITY,
                         format!("user {impersonate} does not exist"),
                     ));
                 }
+            }
         } else {
             return Err(Error::http(
                 StatusCode::UNAUTHORIZED,

crates/collab/src/api/billing.rs

@@ -103,8 +103,8 @@ async fn update_billing_preferences(
     let max_monthly_llm_usage_spending_in_cents =
         body.max_monthly_llm_usage_spending_in_cents.max(0);
 
-    let billing_preferences =
+    let billing_preferences = match app.db.get_billing_preferences(user.id).await? {
-        if let Some(_billing_preferences) = app.db.get_billing_preferences(user.id).await? {
+        Some(_billing_preferences) => {
             app.db
                 .update_billing_preferences(
                     user.id,
@@ -115,7 +115,8 @@ async fn update_billing_preferences(
                     },
                 )
                 .await?
-        } else {
+        }
+        _ => {
             app.db
                 .create_billing_preferences(
                     user.id,
@@ -124,6 +125,7 @@ async fn update_billing_preferences(
                     },
                 )
                 .await?
+        }
     };
 
     SnowflakeRow::new(
@@ -624,11 +626,12 @@ async fn handle_customer_event(
         return Ok(());
     };
 
-    if let Some(existing_customer) = app
+    match app
         .db
         .get_billing_customer_by_stripe_customer_id(&customer.id)
         .await?
     {
+        Some(existing_customer) => {
             app.db
                 .update_billing_customer(
                     existing_customer.id,
@@ -639,7 +642,8 @@ async fn handle_customer_event(
                     },
                 )
                 .await?;
-    } else {
+        }
+        _ => {
             app.db
                 .create_billing_customer(&CreateBillingCustomerParams {
                     user_id: user.id,
@@ -647,6 +651,7 @@ async fn handle_customer_event(
                 })
                 .await?;
         }
+    }
 
     Ok(())
 }
@@ -689,11 +694,12 @@ async fn handle_customer_subscription_event(
             .await?;
     }
 
-    if let Some(existing_subscription) = app
+    match app
         .db
         .get_billing_subscription_by_stripe_subscription_id(&subscription.id)
         .await?
     {
+        Some(existing_subscription) => {
             app.db
                 .update_billing_subscription(
                     existing_subscription.id,
@@ -716,7 +722,8 @@ async fn handle_customer_subscription_event(
                     },
                 )
                 .await?;
-    } else {
+        }
+        _ => {
             // If the user already has an active billing subscription, ignore the
             // event and return an `Ok` to signal that it was processed
             // successfully.
@@ -756,6 +763,7 @@ async fn handle_customer_subscription_event(
                 })
                 .await?;
         }
+    }
 
     // When the user's subscription changes, we want to refresh their LLM tokens
     // to either grant/revoke access.

crates/collab/src/api/ips_file.rs

@@ -47,10 +47,15 @@ impl IpsFile {
                 Some(panic_message) => format!("Panic `{}`", panic_message),
                 None => "Crash `Abort trap: 6` (possible panic)".into(),
             }
-        } else if let Some(msg) = &self.body.exception.message {
-            format!("Exception `{}`", msg)
         } else {
+            match &self.body.exception.message {
+                Some(msg) => {
+                    format!("Exception `{}`", msg)
+                }
+                _ => {
                     format!("Crash `{}`", self.body.termination.indicator)
+                }
+            }
         };
         if let Some(thread) = self.faulting_thread() {
             if let Some(queue) = thread.queue.as_ref() {
@@ -81,10 +86,13 @@ impl IpsFile {
                             return None;
                         }
                         Some(format!("{:#}", rustc_demangle::demangle(name)))
-                    } else if let Some(image) = self.body.used_images.get(frame.image_index) {
-                        Some(image.name.clone().unwrap_or("<unknown-image>".into()))
                     } else {
-                        Some("<unknown>".into())
+                        match self.body.used_images.get(frame.image_index) {
+                            Some(image) => {
+                                Some(image.name.clone().unwrap_or("<unknown-image>".into()))
+                            }
+                            _ => Some("<unknown>".into()),
+                        }
                     }
                 })
                 .collect::<Vec<_>>();

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

@@ -105,10 +105,11 @@ impl Database {
             let mut accept_invite_result = None;
 
             if role.is_none() {
-                if let Some(invitation) = self
+                match self
                     .pending_invite_for_channel(&channel, user_id, &tx)
                     .await?
                 {
+                    Some(invitation) => {
                         // note, this may be a parent channel
                         role = Some(invitation.role);
                         channel_member::Entity::update(channel_member::ActiveModel {
@@ -126,7 +127,9 @@ impl Database {
                         debug_assert!(
                             self.channel_role_for_user(&channel, user_id, &tx).await? == role
                         );
-                } else if channel.visibility == ChannelVisibility::Public {
+                    }
+                    _ => {
+                        if channel.visibility == ChannelVisibility::Public {
                             role = Some(ChannelRole::Guest);
                             channel_member::Entity::insert(channel_member::ActiveModel {
                                 id: ActiveValue::NotSet,
@@ -148,6 +151,8 @@ impl Database {
                             );
                         }
                     }
+                }
+            }
 
             if role.is_none() || role == Some(ChannelRole::Banned) {
                 Err(ErrorCode::Forbidden.anyhow())?

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

@@ -101,15 +101,18 @@ impl Database {
                 }
 
                 if let Some(wasm_api_version) = version.wasm_api_version.as_ref() {
-                    if let Some(version) = SemanticVersion::from_str(wasm_api_version).log_err() {
+                    match SemanticVersion::from_str(wasm_api_version).log_err() {
+                        Some(version) => {
                             if !constraints.wasm_api_versions.contains(&version) {
                                 continue;
                             }
-                    } else {
+                        }
+                        _ => {
                             continue;
                         }
                     }
                 }
+            }
 
             max_versions.insert(version.extension_id, (version, extension_version));
         }

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

@@ -192,10 +192,11 @@ impl Database {
         response: Option<bool>,
         tx: &DatabaseTransaction,
     ) -> Result<Option<(UserId, proto::Notification)>> {
-        if let Some(id) = self
+        match self
             .find_notification(recipient_id, notification, tx)
             .await?
         {
+            Some(id) => {
                 let row = notification::Entity::update(notification::ActiveModel {
                     id: ActiveValue::Unchanged(id),
                     recipient_id: ActiveValue::Unchanged(recipient_id),
@@ -212,8 +213,8 @@ impl Database {
                 Ok(model_to_proto(self, row)
                     .map(|notification| (recipient_id, notification))
                     .ok())
-        } else {
+            }
-            Ok(None)
+            _ => Ok(None),
         }
     }
 

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

@@ -132,13 +132,15 @@ impl Database {
         initial_channel_id: Option<ChannelId>,
         tx: &DatabaseTransaction,
     ) -> Result<User> {
-        if let Some(existing_user) = self
+        match self
             .get_user_by_github_user_id_or_github_login(github_user_id, github_login, tx)
             .await?
         {
+            Some(existing_user) => {
                 let mut existing_user = existing_user.into_active_model();
                 existing_user.github_login = ActiveValue::set(github_login.into());
-            existing_user.github_user_created_at = ActiveValue::set(Some(github_user_created_at));
+                existing_user.github_user_created_at =
+                    ActiveValue::set(Some(github_user_created_at));
 
                 if let Some(github_email) = github_email {
                     existing_user.email_address = ActiveValue::set(Some(github_email.into()));
@@ -149,7 +151,8 @@ impl Database {
                 }
 
                 Ok(existing_user.update(tx).await?)
-        } else {
+            }
+            _ => {
                 let user = user::Entity::insert(user::ActiveModel {
                     email_address: ActiveValue::set(github_email.map(|email| email.into())),
                     name: ActiveValue::set(github_name.map(|name| name.into())),
@@ -178,6 +181,7 @@ impl Database {
                 Ok(user)
             }
         }
+    }
 
     /// Tries to retrieve a user, first by their GitHub user ID, and then by their GitHub login.
     ///

crates/collab/src/db/tests.rs

@@ -74,7 +74,7 @@ impl TestDb {
         let mut rng = StdRng::from_entropy();
         let url = format!(
             "postgres://postgres@localhost/zed-test-{}",
-            rng.gen::<u128>()
+            rng.r#gen::<u128>()
         );
         let runtime = tokio::runtime::Builder::new_current_thread()
             .enable_io()

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

@@ -101,11 +101,12 @@ async fn test_channel_buffers(db: &Arc<Database>) {
     );
     buffer_b.apply_ops(buffer_response_b.operations.into_iter().map(|operation| {
         let operation = proto::deserialize_operation(operation).unwrap();
-        if let language::Operation::Buffer(operation) = operation {
+        match operation {
-            operation
+            language::Operation::Buffer(operation) => operation,
-        } else {
+            _ => {
                 unreachable!()
             }
+        }
     }));
 
     assert_eq!(buffer_b.text(), "hello, cruel world");

crates/collab/src/env.rs

@@ -20,7 +20,8 @@ pub fn get_dotenv_vars(current_dir: impl AsRef<Path>) -> Result<Vec<(String, Str
 
 pub fn load_dotenv() -> Result<()> {
     for (key, value) in get_dotenv_vars("./crates/collab")? {
-        std::env::set_var(key, value);
+        // TODO: Audit that the environment access only happens in single-threaded code.
+        unsafe { std::env::set_var(key, value) };
     }
     Ok(())
 }

crates/collab/src/executor.rs

@@ -26,7 +26,7 @@ impl Executor {
         }
     }
 
-    pub fn sleep(&self, duration: Duration) -> impl Future<Output = ()> {
+    pub fn sleep(&self, duration: Duration) -> impl Future<Output = ()> + use<> {
         let this = self.clone();
         async move {
             match this {

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

@@ -26,7 +26,7 @@ impl TestLlmDb {
         let mut rng = StdRng::from_entropy();
         let url = format!(
             "postgres://postgres@localhost/zed-llm-test-{}",
-            rng.gen::<u128>()
+            rng.r#gen::<u128>()
         );
         let runtime = tokio::runtime::Builder::new_current_thread()
             .enable_io()

crates/collab/src/rpc.rs

@@ -716,7 +716,7 @@ impl Server {
         system_id: Option<String>,
         send_connection_id: Option<oneshot::Sender<ConnectionId>>,
         executor: Executor,
-    ) -> impl Future<Output = ()> {
+    ) -> impl Future<Output = ()> + use<> {
         let this = self.clone();
         let span = info_span!("handle connection", %address,
             connection_id=field::Empty,
@@ -810,7 +810,7 @@ impl Server {
                     _ = foreground_message_handlers.next() => {}
                     next_message = next_message => {
                         let (permit, message) = next_message;
-                        if let Some(message) = message {
+                        match message { Some(message) => {
                             let type_name = message.payload_type_name();
                             // note: we copy all the fields from the parent span so we can query them in the logs.
                             // (https://github.com/tokio-rs/tracing/issues/2670).
@@ -821,7 +821,7 @@ impl Server {
                             );
                             principal.update_span(&span);
                             let span_enter = span.enter();
-                            if let Some(handler) = this.handlers.get(&message.payload_type_id()) {
+                            match this.handlers.get(&message.payload_type_id()) { Some(handler) => {
                                 let is_background = message.is_background();
                                 let handle_message = (handler)(message, session.clone());
                                 drop(span_enter);
@@ -835,13 +835,13 @@ impl Server {
                                 } else {
                                     foreground_message_handlers.push(handle_message);
                                 }
-                            } else {
+                            } _ => {
                                 tracing::error!("no message handler");
-                            }
+                            }}
-                        } else {
+                        } _ => {
                             tracing::info!("connection closed");
                             break;
-                        }
+                        }}
                     }
                 }
             }
@@ -1313,9 +1313,8 @@ async fn join_room(
             .trace_err();
     }
 
-    let live_kit_connection_info = if let Some(live_kit) = session.app_state.livekit_client.as_ref()
+    let live_kit_connection_info = match session.app_state.livekit_client.as_ref() {
-    {
+        Some(live_kit) => live_kit
-        live_kit
             .room_token(
                 &joined_room.room.livekit_room,
                 &session.user_id().to_string(),
@@ -1325,9 +1324,8 @@ async fn join_room(
                 server_url: live_kit.url().into(),
                 token,
                 can_publish: true,
-            })
+            }),
-    } else {
+        _ => None,
-        None
     };
 
     response.send(proto::JoinRoomResponse {
@@ -4393,7 +4391,8 @@ async fn leave_room_for_session(session: &Session, connection_id: ConnectionId)
     let room;
     let channel;
 
-    if let Some(mut left_room) = session.db().await.leave_room(connection_id).await? {
+    match session.db().await.leave_room(connection_id).await? {
+        Some(mut left_room) => {
             contacts_to_update.insert(session.user_id());
 
             for project in left_room.left_projects.values() {
@@ -4408,9 +4407,11 @@ async fn leave_room_for_session(session: &Session, connection_id: ConnectionId)
             channel = mem::take(&mut left_room.channel);
 
             room_updated(&room, &session.peer);
-    } else {
+        }
+        _ => {
             return Ok(());
         }
+    }
 
     if let Some(channel) = channel {
         channel_updated(

crates/collab/src/stripe_billing.rs

@@ -130,9 +130,9 @@ impl StripeBilling {
         }
 
         let mut state = self.state.write().await;
-        let meter = if let Some(meter) = state.meters_by_event_name.get(meter_event_name) {
+        let meter = match state.meters_by_event_name.get(meter_event_name) {
-            meter.clone()
+            Some(meter) => meter.clone(),
-        } else {
+            _ => {
                 let meter = StripeMeter::create(
                     &self.client,
                     StripeCreateMeterParams {
@@ -146,11 +146,12 @@ impl StripeBilling {
                     .meters_by_event_name
                     .insert(meter_event_name.to_string(), meter.clone());
                 meter
+            }
         };
 
-        let price_id = if let Some(price_id) = state.price_ids_by_meter_id.get(&meter.id) {
+        let price_id = match state.price_ids_by_meter_id.get(&meter.id) {
-            price_id.clone()
+            Some(price_id) => price_id.clone(),
-        } else {
+            _ => {
                 let price = stripe::Price::create(
                     &self.client,
                     stripe::CreatePrice {
@@ -198,6 +199,7 @@ impl StripeBilling {
                     .price_ids_by_meter_id
                     .insert(meter.id, price.id.clone());
                 price.id
+            }
         };
 
         Ok(StripeBillingPrice {

crates/collab/src/tests/integration_tests.rs

@@ -5602,7 +5602,7 @@ async fn test_open_buffer_while_getting_definition_pointing_to_it(
 
     let definitions;
     let buffer_b2;
-    if rng.gen() {
+    if rng.r#gen() {
         definitions = project_b.update(cx_b, |p, cx| p.definition(&buffer_b1, 23, cx));
         (buffer_b2, _) = project_b
             .update(cx_b, |p, cx| {

crates/collab/src/tests/random_project_collaboration_tests.rs

@@ -216,7 +216,8 @@ impl RandomizedTest for ProjectCollaborationTest {
                     // Open a new project
                     0..=70 => {
                         // Open a remote project
-                        if let Some(room) = call.read_with(cx, |call, _| call.room().cloned()) {
+                        match call.read_with(cx, |call, _| call.room().cloned()) {
+                            Some(room) => {
                                 let existing_dev_server_project_ids = cx.read(|cx| {
                                     client
                                         .dev_server_projects()
@@ -229,7 +230,8 @@ impl RandomizedTest for ProjectCollaborationTest {
                                         .values()
                                         .flat_map(|participant| {
                                             participant.projects.iter().filter_map(|project| {
-                                            if existing_dev_server_project_ids.contains(&project.id)
+                                                if existing_dev_server_project_ids
+                                                    .contains(&project.id)
                                                 {
                                                     None
                                                 } else {
@@ -251,12 +253,12 @@ impl RandomizedTest for ProjectCollaborationTest {
                                     };
                                 }
                             }
-                        // Open a local project
+                            _ => {
-                        else {
                                 let first_root_name = plan.next_root_dir_name();
                                 break ClientOperation::OpenLocalProject { first_root_name };
                             }
                         }
+                    }
 
                     // Close a remote project
                     71..=80 => {
@@ -279,7 +281,7 @@ impl RandomizedTest for ProjectCollaborationTest {
                             let project_root_name = root_name_for_project(&project, cx);
                             let mut paths = client.fs().paths(false);
                             paths.remove(0);
-                            let new_root_path = if paths.is_empty() || rng.gen() {
+                            let new_root_path = if paths.is_empty() || rng.r#gen() {
                                 Path::new(path!("/")).join(plan.next_root_dir_name())
                             } else {
                                 paths.choose(rng).unwrap().clone()
@@ -309,7 +311,7 @@ impl RandomizedTest for ProjectCollaborationTest {
                                     .choose(rng)
                             });
                             let Some(worktree) = worktree else { continue };
-                            let is_dir = rng.gen::<bool>();
+                            let is_dir = rng.r#gen::<bool>();
                             let mut full_path =
                                 worktree.read_with(cx, |w, _| PathBuf::from(w.root_name()));
                             full_path.push(gen_file_name(rng));
@@ -387,7 +389,7 @@ impl RandomizedTest for ProjectCollaborationTest {
                                             language::Bias::Left,
                                         )
                                     });
-                                    let detach = rng.gen();
+                                    let detach = rng.r#gen();
                                     break ClientOperation::RequestLspDataInBuffer {
                                         project_root_name,
                                         full_path,
@@ -460,7 +462,7 @@ impl RandomizedTest for ProjectCollaborationTest {
 
                 // Create or update a file or directory
                 96.. => {
-                    let is_dir = rng.gen::<bool>();
+                    let is_dir = rng.r#gen::<bool>();
                     let content;
                     let mut path;
                     let dir_paths = client.fs().directories(false);
@@ -1270,11 +1272,13 @@ impl RandomizedTest for ProjectCollaborationTest {
                     Some((client.user_id().unwrap(), project, cx))
                 });
 
-                let (host_user_id, host_project, host_cx) =
+                let (host_user_id, host_project, host_cx) = match host_project {
-                    if let Some((host_user_id, host_project, host_cx)) = host_project {
+                    Some((host_user_id, host_project, host_cx)) => {
                         (host_user_id, host_project, host_cx)
-                    } else {
+                    }
+                    _ => {
                         continue;
+                    }
                 };
 
                 for guest_buffer in guest_buffers {

crates/collab/src/tests/test_server.rs

@@ -175,10 +175,9 @@ impl TestServer {
 
         let clock = Arc::new(FakeSystemClock::new());
         let http = FakeHttpClient::with_404_response();
-        let user_id = if let Ok(Some(user)) = self.app_state.db.get_user_by_github_login(name).await
+        let user_id = match self.app_state.db.get_user_by_github_login(name).await {
-        {
+            Ok(Some(user)) => user.id,
-            user.id
+            _ => {
-        } else {
                 let github_user_id = self.next_github_user_id;
                 self.next_github_user_id += 1;
                 self.app_state
@@ -195,6 +194,7 @@ impl TestServer {
                     .await
                     .expect("creating user failed")
                     .user_id
+            }
         };
         let client_name = name.to_string();
         let mut client = cx.update(|cx| Client::new(clock, http.clone(), cx));
@@ -660,7 +660,7 @@ impl TestClient {
     pub fn buffers_for_project<'a>(
         &'a self,
         project: &Entity<Project>,
-    ) -> impl DerefMut<Target = HashSet<Entity<language::Buffer>>> + 'a {
+    ) -> impl DerefMut<Target = HashSet<Entity<language::Buffer>>> + 'a + use<'a> {
         RefMut::map(self.state.borrow_mut(), |state| {
             state.buffers.entry(project.clone()).or_default()
         })

crates/collab_ui/src/channel_view.rs

@@ -556,12 +556,9 @@ impl FollowableItem for ChannelView {
         Some(proto::view::Variant::ChannelView(
             proto::view::ChannelView {
                 channel_id: channel_buffer.channel_id.0,
-                editor: if let Some(proto::view::Variant::Editor(proto)) =
+                editor: match self.editor.read(cx).to_state_proto(window, cx) {
-                    self.editor.read(cx).to_state_proto(window, cx)
+                    Some(proto::view::Variant::Editor(proto)) => Some(proto),
-                {
+                    _ => None,
-                    Some(proto)
-                } else {
-                    None
                 },
             },
         ))

crates/collab_ui/src/chat_panel.rs

@@ -102,14 +102,11 @@ impl ChatPanel {
                 0,
                 gpui::ListAlignment::Bottom,
                 px(1000.),
-                move |ix, window, cx| {
+                move |ix, window, cx| match entity.upgrade() {
-                    if let Some(entity) = entity.upgrade() {
+                    Some(entity) => entity.update(cx, |this: &mut Self, cx| {
-                        entity.update(cx, |this: &mut Self, cx| {
                         this.render_message(ix, window, cx).into_any_element()
-                        })
+                    }),
-                    } else {
+                    _ => div().into_any(),
-                        div().into_any()
-                    }
                 },
             );
 
@@ -200,15 +197,14 @@ impl ChatPanel {
         cx: AsyncWindowContext,
     ) -> Task<Result<Entity<Self>>> {
         cx.spawn(async move |cx| {
-            let serialized_panel = if let Some(panel) = cx
+            let serialized_panel = match cx
                 .background_spawn(async move { KEY_VALUE_STORE.read_kvp(CHAT_PANEL_KEY) })
                 .await
                 .log_err()
                 .flatten()
             {
-                Some(serde_json::from_str::<SerializedChatPanel>(&panel)?)
+                Some(panel) => Some(serde_json::from_str::<SerializedChatPanel>(&panel)?),
-            } else {
+                _ => None,
-                None
             };
 
             workspace.update_in(cx, |workspace, window, cx| {
@@ -314,7 +310,7 @@ impl ChatPanel {
         message_id: Option<ChannelMessageId>,
         reply_to_message: &Option<ChannelMessage>,
         cx: &mut Context<Self>,
-    ) -> impl IntoElement {
+    ) -> impl IntoElement + use<> {
         let reply_to_message = match reply_to_message {
             None => {
                 return div().child(
@@ -393,7 +389,7 @@ impl ChatPanel {
         ix: usize,
         window: &mut Window,
         cx: &mut Context<Self>,
-    ) -> impl IntoElement {
+    ) -> impl IntoElement + use<> {
         let active_chat = &self.active_chat.as_ref().unwrap().0;
         let (message, is_continuation_from_previous, is_admin) =
             active_chat.update(cx, |active_chat, cx| {
@@ -812,7 +808,8 @@ impl ChatPanel {
                 .message_editor
                 .update(cx, |editor, cx| editor.take_message(window, cx));
 
-            if let Some(id) = self.message_editor.read(cx).edit_message_id() {
+            match self.message_editor.read(cx).edit_message_id() {
+                Some(id) => {
                     self.message_editor.update(cx, |editor, _| {
                         editor.clear_edit_message_id();
                     });
@@ -823,12 +820,19 @@ impl ChatPanel {
                     {
                         task.detach();
                     }
-            } else if let Some(task) = chat
+                }
+                _ => {
+                    match chat
                         .update(cx, |chat, cx| chat.send_message(message, cx))
                         .log_err()
                     {
+                        Some(task) => {
                             task.detach();
                         }
+                        _ => {}
+                    }
+                }
+            }
         }
     }
 

crates/collab_ui/src/collab_panel.rs

@@ -244,12 +244,11 @@ impl CollabPanel {
                 0,
                 gpui::ListAlignment::Top,
                 px(1000.),
-                move |ix, window, cx| {
+                move |ix, window, cx| match entity.upgrade() {
-                    if let Some(entity) = entity.upgrade() {
+                    Some(entity) => {
                         entity.update(cx, |this, cx| this.render_list_entry(ix, window, cx))
-                    } else {
-                        div().into_any()
                     }
+                    _ => div().into_any(),
                 },
             );
 
@@ -878,7 +877,7 @@ impl CollabPanel {
         is_selected: bool,
         window: &mut Window,
         cx: &mut Context<Self>,
-    ) -> impl IntoElement {
+    ) -> impl IntoElement + use<> {
         let project_name: SharedString = if worktree_root_names.is_empty() {
             "untitled".to_string()
         } else {
@@ -919,7 +918,7 @@ impl CollabPanel {
         is_selected: bool,
         window: &mut Window,
         cx: &mut Context<Self>,
-    ) -> impl IntoElement {
+    ) -> impl IntoElement + use<> {
         let id = peer_id.map_or(usize::MAX, |id| id.as_u64() as usize);
 
         ListItem::new(("screen", id))
@@ -960,7 +959,7 @@ impl CollabPanel {
         is_selected: bool,
         window: &mut Window,
         cx: &mut Context<Self>,
-    ) -> impl IntoElement {
+    ) -> impl IntoElement + use<> {
         let channel_store = self.channel_store.read(cx);
         let has_channel_buffer_changed = channel_store.has_channel_buffer_changed(channel_id);
         ListItem::new("channel-notes")
@@ -993,7 +992,7 @@ impl CollabPanel {
         is_selected: bool,
         window: &mut Window,
         cx: &mut Context<Self>,
-    ) -> impl IntoElement {
+    ) -> impl IntoElement + use<> {
         let channel_store = self.channel_store.read(cx);
         let has_messages_notification = channel_store.has_new_messages(channel_id);
         ListItem::new("channel-chat")
@@ -2278,7 +2277,7 @@ impl CollabPanel {
         &self,
         editor: &Entity<Editor>,
         cx: &mut Context<Self>,
-    ) -> impl IntoElement {
+    ) -> impl IntoElement + use<> {
         let settings = ThemeSettings::get_global(cx);
         let text_style = TextStyle {
             color: if editor.read(cx).read_only(cx) {
@@ -2312,7 +2311,7 @@ impl CollabPanel {
         is_selected: bool,
         is_collapsed: bool,
         cx: &mut Context<Self>,
-    ) -> impl IntoElement {
+    ) -> impl IntoElement + use<> {
         let mut channel_link = None;
         let mut channel_tooltip_text = None;
         let mut channel_icon = None;
@@ -2411,7 +2410,7 @@ impl CollabPanel {
         calling: bool,
         is_selected: bool,
         cx: &mut Context<Self>,
-    ) -> impl IntoElement {
+    ) -> impl IntoElement + use<> {
         let online = contact.online;
         let busy = contact.busy || calling;
         let github_login = SharedString::from(contact.user.github_login.clone());
@@ -2492,7 +2491,7 @@ impl CollabPanel {
         is_incoming: bool,
         is_selected: bool,
         cx: &mut Context<Self>,
-    ) -> impl IntoElement {
+    ) -> impl IntoElement + use<> {
         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);
@@ -2605,7 +2604,7 @@ impl CollabPanel {
         is_selected: bool,
         ix: usize,
         cx: &mut Context<Self>,
-    ) -> impl IntoElement {
+    ) -> impl IntoElement + use<> {
         let channel_id = channel.id;
 
         let is_active = maybe!({
@@ -2803,7 +2802,7 @@ impl CollabPanel {
         depth: usize,
         _window: &mut Window,
         _cx: &mut Context<Self>,
-    ) -> impl IntoElement {
+    ) -> impl IntoElement + use<> {
         let item = ListItem::new("channel-editor")
             .inset(false)
             // Add one level of depth for the disclosure arrow.
@@ -2832,7 +2831,7 @@ fn render_tree_branch(
     overdraw: bool,
     window: &mut Window,
     cx: &mut App,
-) -> impl IntoElement {
+) -> impl IntoElement + use<> {
     let rem_size = window.rem_size();
     let line_height = window.text_style().line_height_in_pixels(rem_size);
     let width = rem_size * 1.5;

crates/collab_ui/src/collab_panel/channel_modal.rs

@@ -421,20 +421,17 @@ impl PickerDelegate for ChannelModalDelegate {
                                 el.child(IconButton::new("ellipsis", IconName::Ellipsis))
                             })
                             .when(is_me, |el| el.child(Label::new("You").color(Color::Muted)))
-                            .children(
+                            .children(match (&self.context_menu, selected) {
-                                if let (Some((menu, _)), true) = (&self.context_menu, selected) {
+                                (Some((menu, _)), true) => Some(
-                                    Some(
                                     deferred(
                                         anchored()
                                             .anchor(gpui::Corner::TopRight)
                                             .child(menu.clone()),
                                     )
                                     .with_priority(1),
-                                    )
-                                } else {
-                                    None
-                                },
                                 ),
+                                _ => None,
+                            }),
                         Mode::InviteMembers => match request_status {
                             Some(proto::channel_member::Kind::Invitee) => {
                                 slot.children(Some(Label::new("Invited")))

crates/collab_ui/src/notification_panel.rs

@@ -182,15 +182,14 @@ impl NotificationPanel {
         cx: AsyncWindowContext,
     ) -> Task<Result<Entity<Self>>> {
         cx.spawn(async move |cx| {
-            let serialized_panel = if let Some(panel) = cx
+            let serialized_panel = match cx
                 .background_spawn(async move { KEY_VALUE_STORE.read_kvp(NOTIFICATION_PANEL_KEY) })
                 .await
                 .log_err()
                 .flatten()
             {
-                Some(serde_json::from_str::<SerializedNotificationPanel>(&panel)?)
+                Some(panel) => Some(serde_json::from_str::<SerializedNotificationPanel>(&panel)?),
-            } else {
+                _ => None,
-                None
             };
 
             workspace.update_in(cx, |workspace, window, cx| {
@@ -494,14 +493,15 @@ impl NotificationPanel {
 
         if let Notification::ChannelMessageMention { channel_id, .. } = &notification {
             if let Some(workspace) = self.workspace.upgrade() {
-                return if let Some(panel) = workspace.read(cx).panel::<ChatPanel>(cx) {
+                return match workspace.read(cx).panel::<ChatPanel>(cx) {
+                    Some(panel) => {
                         let panel = panel.read(cx);
                         panel.is_scrolled_to_bottom()
                             && panel
                                 .active_chat()
                                 .map_or(false, |chat| chat.read(cx).channel_id.0 == *channel_id)
-                } else {
+                    }
-                    false
+                    _ => false,
                 };
             }
         }

crates/command_palette_hooks/src/command_palette_hooks.rs

@@ -133,10 +133,9 @@ impl CommandPaletteInterceptor {
 
     /// Intercepts the given query from the command palette.
     pub fn intercept(&self, query: &str, cx: &App) -> Vec<CommandInterceptResult> {
-        if let Some(handler) = self.0.as_ref() {
+        match self.0.as_ref() {
-            (handler)(query, cx)
+            Some(handler) => (handler)(query, cx),
-        } else {
+            _ => Vec::new(),
-            Vec::new()
         }
     }
 

crates/component/src/component.rs

@@ -158,7 +158,7 @@ pub fn components() -> AllComponents {
     let data = COMPONENT_DATA.read();
     let mut all_components = AllComponents::new();
 
-    for (ref scope, name, description) in &data.components {
+    for (scope, name, description) in &data.components {
         let preview = data.previews.get(name).cloned();
         let component_name = SharedString::new_static(name);
         let id = ComponentId(name);

crates/component_preview/src/component_preview.rs

@@ -244,7 +244,7 @@ impl ComponentPreview {
         ix: usize,
         entry: &PreviewEntry,
         cx: &Context<Self>,
-    ) -> impl IntoElement {
+    ) -> impl IntoElement + use<> {
         match entry {
             PreviewEntry::Component(component_metadata) => {
                 let id = component_metadata.id();
@@ -318,7 +318,7 @@ impl ComponentPreview {
         title: SharedString,
         _window: &Window,
         _cx: &App,
-    ) -> impl IntoElement {
+    ) -> impl IntoElement + use<> {
         h_flex()
             .w_full()
             .h_10()
@@ -332,7 +332,7 @@ impl ComponentPreview {
         component: &ComponentMetadata,
         window: &mut Window,
         cx: &mut App,
-    ) -> impl IntoElement {
+    ) -> impl IntoElement + use<> {
         let name = component.name();
         let scope = component.scope();
 
@@ -379,7 +379,7 @@ impl ComponentPreview {
             .into_any_element()
     }
 
-    fn render_all_components(&self) -> impl IntoElement {
+    fn render_all_components(&self) -> impl IntoElement + use<> {
         v_flex()
             .id("component-list")
             .px_8()
@@ -397,7 +397,7 @@ impl ComponentPreview {
         component_id: &ComponentId,
         window: &mut Window,
         cx: &mut Context<Self>,
-    ) -> impl IntoElement {
+    ) -> impl IntoElement + use<> {
         let component = self.component_map.get(&component_id);
 
         if let Some(component) = component {

crates/context_server/src/client.rs

@@ -62,10 +62,9 @@ pub struct Client {
 pub struct ContextServerId(pub Arc<str>);
 
 fn is_null_value<T: Serialize>(value: &T) -> bool {
-    if let Ok(Value::Null) = serde_json::to_value(value) {
+    match serde_json::to_value(value) {
-        true
+        Ok(Value::Null) => true,
-    } else {
+        _ => false,
-        false
     }
 }
 
@@ -232,12 +231,19 @@ impl Client {
                         handler(Ok(message.to_string()));
                     }
                 }
-            } else if let Ok(notification) = serde_json::from_str::<AnyNotification>(&message) {
+            } else {
+                match serde_json::from_str::<AnyNotification>(&message) {
+                    Ok(notification) => {
                         let mut notification_handlers = notification_handlers.lock();
-                if let Some(handler) = notification_handlers.get_mut(notification.method.as_str()) {
+                        if let Some(handler) =
+                            notification_handlers.get_mut(notification.method.as_str())
+                        {
                             handler(notification.params.unwrap_or(Value::Null), cx.clone());
                         }
                     }
+                    _ => {}
+                }
+            }
         }
 
         smol::future::yield_now().await;

crates/context_server/src/context_server_tool.rs

@@ -77,7 +77,8 @@ impl Tool for ContextServerTool {
         _action_log: Entity<ActionLog>,
         cx: &mut App,
     ) -> Task<Result<String>> {
-        if let Some(server) = self.server_manager.read(cx).get_server(&self.server_id) {
+        match self.server_manager.read(cx).get_server(&self.server_id) {
+            Some(server) => {
                 let tool_name = self.tool.name.clone();
                 let server_clone = server.clone();
                 let input_clone = input.clone();
@@ -87,10 +88,9 @@ impl Tool for ContextServerTool {
                         bail!("Context server not initialized");
                     };
 
-                let arguments = if let serde_json::Value::Object(map) = input_clone {
+                    let arguments = match input_clone {
-                    Some(map.into_iter().collect())
+                        serde_json::Value::Object(map) => Some(map.into_iter().collect()),
-                } else {
+                        _ => None,
-                    None
                     };
 
                     log::trace!(
@@ -116,8 +116,8 @@ impl Tool for ContextServerTool {
                     }
                     Ok(result)
                 })
-        } else {
+            }
-            Task::ready(Err(anyhow!("Context server not found")))
+            _ => Task::ready(Err(anyhow!("Context server not found"))),
         }
     }
 }

crates/context_server_settings/src/context_server_settings.rs

@@ -2,7 +2,7 @@ use std::sync::Arc;
 
 use collections::HashMap;
 use gpui::App;
-use schemars::gen::SchemaGenerator;
+use schemars::r#gen::SchemaGenerator;
 use schemars::schema::{InstanceType, Schema, SchemaObject};
 use schemars::JsonSchema;
 use serde::{Deserialize, Serialize};

crates/copilot/src/copilot.rs

@@ -348,7 +348,10 @@ impl Copilot {
         this
     }
 
-    fn shutdown_language_server(&mut self, _cx: &mut Context<Self>) -> impl Future<Output = ()> {
+    fn shutdown_language_server(
+        &mut self,
+        _cx: &mut Context<Self>,
+    ) -> impl Future<Output = ()> + use<> {
         let shutdown = match mem::replace(&mut self.server, CopilotServer::Disabled) {
             CopilotServer::Running(server) => Some(Box::pin(async move { server.lsp.shutdown() })),
             _ => None,
@@ -553,8 +556,10 @@ impl Copilot {
     }
 
     pub fn sign_in(&mut self, cx: &mut Context<Self>) -> Task<Result<()>> {
-        if let CopilotServer::Running(server) = &mut self.server {
+        match &mut self.server {
-            let task = match &server.sign_in_status {
+            CopilotServer::Running(server) => {
+                let task =
+                    match &server.sign_in_status {
                         SignInStatus::Authorized { .. } => Task::ready(Ok(())).shared(),
                         SignInStatus::SigningIn { task, .. } => {
                             cx.notify();
@@ -564,7 +569,8 @@ impl Copilot {
                             let lsp = server.lsp.clone();
                             let task = cx
                                 .spawn(async move |this, cx| {
-                            let sign_in = async {
+                                    let sign_in =
+                                        async {
                                             let sign_in = lsp
                                                 .request::<request::SignInInitiate>(
                                                     request::SignInInitiateParams {},
@@ -629,12 +635,14 @@ impl Copilot {
                     };
 
                 cx.background_spawn(task.map_err(|err| anyhow!("{:?}", err)))
-        } else {
+            }
+            _ => {
                 // If we're downloading, wait until download is finished
                 // If we're in a stuck state, display to the user
                 Task::ready(Err(anyhow!("copilot hasn't started yet")))
             }
         }
+    }
 
     pub fn sign_out(&mut self, cx: &mut Context<Self>) -> Task<Result<()>> {
         self.update_sign_in_status(request::SignInStatus::NotSignedIn, cx);
@@ -680,10 +688,9 @@ impl Copilot {
     }
 
     pub fn language_server(&self) -> Option<&Arc<LanguageServer>> {
-        if let CopilotServer::Running(server) = &self.server {
+        match &self.server {
-            Some(&server.lsp)
+            CopilotServer::Running(server) => Some(&server.lsp),
-        } else {
+            _ => None,
-            None
         }
     }
 

crates/copilot/src/copilot_completion_provider.rs

@@ -1078,7 +1078,7 @@ mod tests {
         cx: &mut EditorLspTestContext,
         marked_string: &str,
         completions: Vec<&'static str>,
-    ) -> impl Future<Output = ()> {
+    ) -> impl Future<Output = ()> + use<> {
         let complete_from_marker: TextRangeMarker = '|'.into();
         let replace_range_marker: TextRangeMarker = ('<', '>').into();
         let (_, mut marked_ranges) = marked_text_ranges_by(

crates/copilot/src/sign_in.rs

@@ -139,7 +139,10 @@ impl CopilotCodeVerification {
         cx.notify();
     }
 
-    fn render_device_code(data: &PromptUserDeviceFlow, cx: &mut Context<Self>) -> impl IntoElement {
+    fn render_device_code(
+        data: &PromptUserDeviceFlow,
+        cx: &mut Context<Self>,
+    ) -> impl IntoElement + use<> {
         let copied = cx
             .read_from_clipboard()
             .map(|item| item.text().as_ref() == Some(&data.user_code))
@@ -172,7 +175,7 @@ impl CopilotCodeVerification {
         data: &PromptUserDeviceFlow,
 
         cx: &mut Context<Self>,
-    ) -> impl Element {
+    ) -> impl Element + use<> {
         let connect_button_label = if connect_clicked {
             "Waiting for connection..."
         } else {
@@ -213,7 +216,7 @@ impl CopilotCodeVerification {
             )
     }
 
-    fn render_enabled_modal(cx: &mut Context<Self>) -> impl Element {
+    fn render_enabled_modal(cx: &mut Context<Self>) -> impl Element + use<> {
         v_flex()
             .gap_2()
             .child(Headline::new("Copilot Enabled!").size(HeadlineSize::Large))
@@ -227,7 +230,7 @@ impl CopilotCodeVerification {
             )
     }
 
-    fn render_unauthorized_modal(cx: &mut Context<Self>) -> impl Element {
+    fn render_unauthorized_modal(cx: &mut Context<Self>) -> impl Element + use<> {
         v_flex()
             .child(Headline::new("You must have an active GitHub Copilot subscription.").size(HeadlineSize::Large))
 
@@ -246,7 +249,7 @@ impl CopilotCodeVerification {
             )
     }
 
-    fn render_loading(window: &mut Window, _: &mut Context<Self>) -> impl Element {
+    fn render_loading(window: &mut Window, _: &mut Context<Self>) -> impl Element + use<> {
         let loading_icon = svg()
             .size_8()
             .path(IconName::ArrowCircle.path())

crates/dap/src/transport.rs

@@ -222,13 +222,12 @@ impl TransportDelegate {
     }
 
     pub(crate) async fn send_message(&self, message: Message) -> Result<()> {
-        if let Some(server_tx) = self.server_tx.lock().await.as_ref() {
+        match self.server_tx.lock().await.as_ref() {
-            server_tx
+            Some(server_tx) => server_tx
                 .send(message)
                 .await
-                .map_err(|e| anyhow!("Failed to send message: {}", e))
+                .map_err(|e| anyhow!("Failed to send message: {}", e)),
-        } else {
+            _ => Err(anyhow!("Server tx already dropped")),
-            Err(anyhow!("Server tx already dropped"))
         }
     }
 
@@ -343,12 +342,15 @@ impl TransportDelegate {
 
             match message {
                 Ok(Message::Response(res)) => {
-                    if let Some(tx) = pending_requests.lock().await.remove(&res.request_seq) {
+                    match pending_requests.lock().await.remove(&res.request_seq) {
+                        Some(tx) => {
                             if let Err(e) = tx.send(Self::process_response(res)) {
                                 log::trace!("Did not send response `{:?}` for a cancelled", e);
                             }
-                    } else {
+                        }
+                        _ => {
                             client_tx.send(Message::Response(res)).await?;
+                        }
                     };
                 }
                 Ok(message) => {
@@ -816,18 +818,20 @@ impl FakeTransport {
                                             .unwrap();
                                         writer.flush().await.unwrap();
                                     } else {
-                                        if let Some(handle) = request_handlers
+                                        match request_handlers
                                             .lock()
                                             .await
                                             .get_mut(request.command.as_str())
                                         {
+                                            Some(handle) => {
                                                 handle(
                                                     request.seq,
                                                     request.arguments.unwrap_or(json!({})),
                                                     stdout_writer.clone(),
                                                 )
                                                 .await;
-                                        } else {
+                                            }
+                                            _ => {
                                                 log::error!(
                                                     "No request handler for {}",
                                                     request.command
@@ -835,6 +839,7 @@ impl FakeTransport {
                                             }
                                         }
                                     }
+                                }
                                 Message::Event(event) => {
                                     let message =
                                         serde_json::to_string(&Message::Event(event)).unwrap();
@@ -850,14 +855,20 @@ impl FakeTransport {
                                     writer.flush().await.unwrap();
                                 }
                                 Message::Response(response) => {
-                                    if let Some(handle) = response_handlers
+                                    match response_handlers
                                         .lock()
                                         .await
                                         .get(response.command.as_str())
                                     {
+                                        Some(handle) => {
                                             handle(response);
-                                    } else {
+                                        }
-                                        log::error!("No response handler for {}", response.command);
+                                        _ => {
+                                            log::error!(
+                                                "No response handler for {}",
+                                                response.command
+                                            );
+                                        }
                                     }
                                 }
                             }

crates/dap_adapters/src/python.rs

@@ -94,17 +94,16 @@ impl DebugAdapter for PythonDebugAdapter {
             )
             .await;
 
-        let python_path = if let Some(toolchain) = toolchain {
+        let python_path = match toolchain {
-            Some(toolchain.path.to_string())
+            Some(toolchain) => Some(toolchain.path.to_string()),
-        } else {
+            _ => BINARY_NAMES
-            BINARY_NAMES
                 .iter()
                 .filter_map(|cmd| {
                     delegate
                         .which(OsStr::new(cmd))
                         .map(|path| path.to_string_lossy().to_string())
                 })
-                .find(|_| true)
+                .find(|_| true),
         };
 
         Ok(DebugAdapterBinary {

crates/db/src/db.rs

@@ -112,7 +112,7 @@ pub async fn open_test_db<M: Migrator>(db_name: &str) -> ThreadSafeConnection<M>
 /// Implements a basic DB wrapper for a given domain
 #[macro_export]
 macro_rules! define_connection {
-    (pub static ref $id:ident: $t:ident<()> = $migrations:expr; $($global:ident)?) => {
+    (pub static ref $id:ident: $t:ident<()> = $migrations:expr_2021; $($global:ident)?) => {
         pub struct $t($crate::sqlez::thread_safe_connection::ThreadSafeConnection<$t>);
 
         impl ::std::ops::Deref for $t {
@@ -149,7 +149,7 @@ macro_rules! define_connection {
             $t($crate::smol::block_on($crate::open_db(db_dir, scope)))
         });
     };
-    (pub static ref $id:ident: $t:ident<$($d:ty),+> = $migrations:expr; $($global:ident)?) => {
+    (pub static ref $id:ident: $t:ident<$($d:ty),+> = $migrations:expr_2021; $($global:ident)?) => {
         pub struct $t($crate::sqlez::thread_safe_connection::ThreadSafeConnection<( $($d),+, $t )>);
 
         impl ::std::ops::Deref for $t {

crates/debugger_ui/src/session/inert.rs

@@ -284,7 +284,7 @@ impl Render for InertState {
 }
 
 impl InertState {
-    fn render_editor(editor: &Entity<Editor>, cx: &Context<Self>) -> impl IntoElement {
+    fn render_editor(editor: &Entity<Editor>, cx: &Context<Self>) -> impl IntoElement + use<> {
         let settings = ThemeSettings::get_global(cx);
         let text_style = TextStyle {
             color: cx.theme().colors().text,

crates/debugger_ui/src/session/running/console.rs

@@ -153,7 +153,7 @@ impl Console {
         });
     }
 
-    fn render_console(&self, cx: &Context<Self>) -> impl IntoElement {
+    fn render_console(&self, cx: &Context<Self>) -> impl IntoElement + use<> {
         let settings = ThemeSettings::get_global(cx);
         let text_style = TextStyle {
             color: if self.console.read(cx).read_only(cx) {
@@ -180,7 +180,7 @@ impl Console {
         )
     }
 
-    fn render_query_bar(&self, cx: &Context<Self>) -> impl IntoElement {
+    fn render_query_bar(&self, cx: &Context<Self>) -> impl IntoElement + use<> {
         let settings = ThemeSettings::get_global(cx);
         let text_style = TextStyle {
             color: if self.console.read(cx).read_only(cx) {

crates/debugger_ui/src/session/running/variable_list.rs

@@ -807,14 +807,16 @@ impl VariableList {
                         )
                         .when(!dap.value.is_empty(), |this| {
                             this.child(div().w_full().id(variable.item_value_id()).map(|this| {
-                                if let Some((_, editor)) = self
+                                match self
                                     .edited_path
                                     .as_ref()
                                     .filter(|(path, _)| path == &variable.path)
                                 {
+                                    Some((_, editor)) => {
                                         this.child(div().size_full().px_2().child(editor.clone()))
-                                } else {
+                                    }
-                                    this.text_color(cx.theme().colors().text_muted)
+                                    _ => this
+                                        .text_color(cx.theme().colors().text_muted)
                                         .when(
                                             !self.disabled
                                                 && self
@@ -853,7 +855,7 @@ impl VariableList {
                                                 .when_some(variable_color, |this, color| {
                                                     this.color(Color::from(color))
                                                 }),
-                                        )
+                                        ),
                                 }
                             }))
                         }),

crates/debugger_ui/src/session/starting.rs

@@ -32,12 +32,9 @@ impl StartingState {
         let _notify_parent = cx.spawn(async move |this, cx| {
             let entity = task.await;
 
-            this.update(cx, |_, cx| {
+            this.update(cx, |_, cx| match entity {
-                if let Ok(entity) = entity {
+                Ok(entity) => cx.emit(StartingEvent::Finished(entity)),
-                    cx.emit(StartingEvent::Finished(entity))
+                _ => cx.emit(StartingEvent::Failed),
-                } else {
-                    cx.emit(StartingEvent::Failed)
-                }
             })
             .ok();
         });

crates/diagnostics/src/diagnostics.rs

@@ -305,12 +305,14 @@ impl ProjectDiagnosticsEditor {
         window: &mut Window,
         cx: &mut Context<Workspace>,
     ) {
-        if let Some(existing) = workspace.item_of_type::<ProjectDiagnosticsEditor>(cx) {
+        match workspace.item_of_type::<ProjectDiagnosticsEditor>(cx) {
+            Some(existing) => {
                 let is_active = workspace
                     .active_item(cx)
                     .is_some_and(|item| item.item_id() == existing.item_id());
                 workspace.activate_item(&existing, true, !is_active, window, cx);
-        } else {
+            }
+            _ => {
                 let workspace_handle = cx.entity().downgrade();
 
                 let include_warnings = match cx.try_global::<IncludeWarnings>() {
@@ -330,6 +332,7 @@ impl ProjectDiagnosticsEditor {
                 workspace.add_item_to_active_pane(Box::new(diagnostics), None, true, window, cx);
             }
         }
+    }
 
     fn toggle_warnings(&mut self, _: &ToggleWarnings, window: &mut Window, cx: &mut Context<Self>) {
         self.include_warnings = !self.include_warnings;
@@ -472,7 +475,8 @@ impl ProjectDiagnosticsEditor {
                     }
                 }
 
-                if let Some((language_server_id, group)) = to_insert {
+                match to_insert {
+                    Some((language_server_id, group)) => {
                         let mut group_state = DiagnosticGroupState {
                             language_server_id,
                             primary_diagnostic: group.entries[group.primary_ix].clone(),
@@ -483,10 +487,11 @@ impl ProjectDiagnosticsEditor {
                         };
                         let mut pending_range: Option<(Range<Point>, Range<Point>, usize)> = None;
                         let mut is_first_excerpt_for_group = true;
-                    for (ix, entry) in group.entries.iter().map(Some).chain([None]).enumerate() {
+                        for (ix, entry) in group.entries.iter().map(Some).chain([None]).enumerate()
+                        {
                             let resolved_entry = entry.map(|e| e.resolve::<Point>(&snapshot));
-                        let expanded_range = if let Some(entry) = &resolved_entry {
+                            let expanded_range = match &resolved_entry {
-                            Some(
+                                Some(entry) => Some(
                                     context_range_for_entry(
                                         entry.range.clone(),
                                         context,
@@ -494,15 +499,15 @@ impl ProjectDiagnosticsEditor {
                                         (**cx).clone(),
                                     )
                                     .await,
-                            )
+                                ),
-                        } else {
+                                _ => None,
-                            None
                             };
                             if let Some((range, context_range, start_ix)) = &mut pending_range {
                                 if let Some(expanded_range) = expanded_range.clone() {
                                     // If the entries are overlapping or next to each-other, merge them into one excerpt.
                                     if context_range.end.row + 1 >= expanded_range.start.row {
-                                    context_range.end = context_range.end.max(expanded_range.end);
+                                        context_range.end =
+                                            context_range.end.max(expanded_range.end);
                                         continue;
                                     }
                                 }
@@ -546,7 +551,8 @@ impl ProjectDiagnosticsEditor {
                                 for entry in &group.entries[*start_ix..ix] {
                                     let mut diagnostic = entry.diagnostic.clone();
                                     if diagnostic.is_primary {
-                                    group_state.primary_excerpt_ix = group_state.excerpts.len() - 1;
+                                        group_state.primary_excerpt_ix =
+                                            group_state.excerpts.len() - 1;
                                         diagnostic.message =
                                             entry.diagnostic.message.split('\n').skip(1).collect();
                                     }
@@ -558,9 +564,12 @@ impl ProjectDiagnosticsEditor {
                                                 excerpt_id,
                                                 entry.range.start,
                                             )),
-                                        height: diagnostic.message.matches('\n').count() as u32 + 1,
+                                            height: diagnostic.message.matches('\n').count() as u32
+                                                + 1,
                                             style: BlockStyle::Fixed,
-                                        render: diagnostic_block_renderer(diagnostic, None, true),
+                                            render: diagnostic_block_renderer(
+                                                diagnostic, None, true,
+                                            ),
                                             priority: 0,
                                         });
                                     }
@@ -581,12 +590,16 @@ impl ProjectDiagnosticsEditor {
                                 .diagnostic_groups
                                 .push(group_state);
                         })?;
-                } else if let Some((_, group_state)) = to_remove {
+                    }
+                    _ => match to_remove {
+                        Some((_, group_state)) => {
                             excerpts.update(cx, |excerpts, cx| {
                                 excerpts.remove_excerpts(group_state.excerpts.iter().copied(), cx)
                             })?;
                             blocks_to_remove.extend(group_state.blocks.iter().copied());
-                } else if let Some((_, group_state)) = to_keep {
+                        }
+                        _ => match to_keep {
+                            Some((_, group_state)) => {
                                 prev_excerpt_id = *group_state.excerpts.last().unwrap();
                                 first_excerpt_id.get_or_insert(prev_excerpt_id);
 
@@ -596,6 +609,10 @@ impl ProjectDiagnosticsEditor {
                                         .push(group_state)
                                 })?;
                             }
+                            _ => {}
+                        },
+                    },
+                }
             }
 
             let excerpts_snapshot = excerpts.update(cx, |excerpts, cx| excerpts.snapshot(cx))?;

crates/diagnostics/src/items.rs

@@ -62,7 +62,8 @@ impl Render for DiagnosticIndicator {
                 .child(Label::new(warning_count.to_string()).size(LabelSize::Small)),
         };
 
-        let status = if let Some(diagnostic) = &self.current_diagnostic {
+        let status = match &self.current_diagnostic {
+            Some(diagnostic) => {
                 let message = diagnostic.message.split('\n').next().unwrap().to_string();
                 Some(
                     Button::new("diagnostic_message", message)
@@ -80,8 +81,8 @@ impl Render for DiagnosticIndicator {
                         }))
                         .into_any_element(),
                 )
-        } else {
+            }
-            None
+            _ => None,
         };
 
         h_flex()
@@ -187,15 +188,18 @@ impl StatusItemView for DiagnosticIndicator {
         window: &mut Window,
         cx: &mut Context<Self>,
     ) {
-        if let Some(editor) = active_pane_item.and_then(|item| item.downcast::<Editor>()) {
+        match active_pane_item.and_then(|item| item.downcast::<Editor>()) {
+            Some(editor) => {
                 self.active_editor = Some(editor.downgrade());
                 self._observe_active_editor = Some(cx.observe_in(&editor, window, Self::update));
                 self.update(editor, window, cx);
-        } else {
+            }
+            _ => {
                 self.active_editor = None;
                 self.current_diagnostic = None;
                 self._observe_active_editor = None;
             }
+        }
         cx.notify();
     }
 }

crates/diagnostics/src/toolbar_controls.rs

@@ -83,11 +83,12 @@ impl ToolbarItemView for ToolbarControls {
         _: &mut Context<Self>,
     ) -> ToolbarItemLocation {
         if let Some(pane_item) = active_pane_item.as_ref() {
-            if let Some(editor) = pane_item.downcast::<ProjectDiagnosticsEditor>() {
+            match pane_item.downcast::<ProjectDiagnosticsEditor>() {
+                Some(editor) => {
                     self.editor = Some(editor.downgrade());
                     ToolbarItemLocation::PrimaryRight
-            } else {
+                }
-                ToolbarItemLocation::Hidden
+                _ => ToolbarItemLocation::Hidden,
             }
         } else {
             ToolbarItemLocation::Hidden

crates/docs_preprocessor/src/main.rs

@@ -21,11 +21,14 @@ fn main() -> Result<()> {
     let preprocessor =
         ZedDocsPreprocessor::new().context("Failed to create ZedDocsPreprocessor")?;
 
-    if let Some(sub_args) = matches.subcommand_matches("supports") {
+    match matches.subcommand_matches("supports") {
+        Some(sub_args) => {
             handle_supports(&preprocessor, sub_args);
-    } else {
+        }
+        _ => {
             handle_preprocessing(&preprocessor)?;
         }
+    }
 
     Ok(())
 }

crates/editor/src/code_context_menus.rs

@@ -735,11 +735,11 @@ impl CompletionsMenu {
 
                 let completion = &completions[mat.candidate_id];
                 let sort_key = completion.sort_key();
-                let sort_text =
+                let sort_text = match &completion.source {
-                    if let CompletionSource::Lsp { lsp_completion, .. } = &completion.source {
+                    CompletionSource::Lsp { lsp_completion, .. } => {
                         lsp_completion.sort_text.as_deref()
-                    } else {
+                    }
-                        None
+                    _ => None,
                 };
                 let score = Reverse(OrderedFloat(mat.score));
 

crates/editor/src/commit_tooltip.rs

@@ -49,7 +49,7 @@ impl<'a> CommitAvatar<'a> {
         &'a self,
         window: &mut Window,
         cx: &mut Context<CommitTooltip>,
-    ) -> Option<impl IntoElement> {
+    ) -> Option<impl IntoElement + use<>> {
         let remote = self
             .commit
             .message

crates/editor/src/display_map.rs

@@ -226,26 +226,22 @@ impl DisplayMap {
             .wrap_map
             .update(cx, |map, cx| map.sync(snapshot, edits, cx));
         let mut block_map = self.block_map.write(snapshot, edits);
-        let blocks = creases.into_iter().filter_map(|crease| {
+        let blocks = creases.into_iter().filter_map(|crease| match crease {
-            if let Crease::Block {
+            Crease::Block {
                 range,
                 block_height,
                 render_block,
                 block_style,
                 block_priority,
                 ..
-            } = crease
+            } => Some((
-            {
-                Some((
                 range,
                 render_block,
                 block_height,
                 block_style,
                 block_priority,
-                ))
+            )),
-            } else {
+            _ => None,
-                None
-            }
         });
         block_map.insert(
             blocks
@@ -954,10 +950,9 @@ impl DisplaySnapshot {
         for chunk in self.highlighted_chunks(range, false, editor_style) {
             line.push_str(chunk.text);
 
-            let text_style = if let Some(style) = chunk.style {
+            let text_style = match chunk.style {
-                Cow::Owned(editor_style.text.clone().highlight(style))
+                Some(style) => Cow::Owned(editor_style.text.clone().highlight(style)),
-            } else {
+                _ => Cow::Borrowed(&editor_style.text),
-                Cow::Borrowed(&editor_style.text)
             };
 
             runs.push(text_style.to_run(chunk.text.len()))
@@ -1186,11 +1181,11 @@ impl DisplaySnapshot {
 
     pub fn crease_for_buffer_row(&self, buffer_row: MultiBufferRow) -> Option<Crease<Point>> {
         let start = MultiBufferPoint::new(buffer_row.0, self.buffer_snapshot.line_len(buffer_row));
-        if let Some(crease) = self
+        match self
             .crease_snapshot
             .query_row(buffer_row, &self.buffer_snapshot)
         {
-            match crease {
+            Some(crease) => match crease {
                 Crease::Inline {
                     range,
                     placeholder,
@@ -1219,8 +1214,9 @@ impl DisplaySnapshot {
                     block_priority: *block_priority,
                     render_toggle: render_toggle.clone(),
                 }),
-            }
+            },
-        } else if self.starts_indent(MultiBufferRow(start.row))
+            _ => {
+                if self.starts_indent(MultiBufferRow(start.row))
                     && !self.is_line_folded(MultiBufferRow(start.row))
                 {
                     let start_line_indent = self.line_indent_for_buffer_row(buffer_row);
@@ -1267,6 +1263,8 @@ impl DisplaySnapshot {
                     None
                 }
             }
+        }
+    }
 
     #[cfg(any(test, feature = "test-support"))]
     pub fn text_highlight_ranges<Tag: ?Sized + 'static>(
@@ -1480,7 +1478,7 @@ pub mod tests {
         });
 
         let buffer = cx.update(|cx| {
-            if rng.gen() {
+            if rng.r#gen() {
                 let len = rng.gen_range(0..10);
                 let text = util::RandomCharIter::new(&mut rng)
                     .take(len)
@@ -1542,7 +1540,7 @@ pub mod tests {
                 }
                 30..=44 => {
                     map.update(cx, |map, cx| {
-                        if rng.gen() || blocks.is_empty() {
+                        if rng.r#gen() || blocks.is_empty() {
                             let buffer = map.snapshot(cx).buffer_snapshot;
                             let block_properties = (0..rng.gen_range(1..=1))
                                 .map(|_| {
@@ -1552,7 +1550,7 @@ pub mod tests {
                                             Bias::Left,
                                         ));
 
-                                    let placement = if rng.gen() {
+                                    let placement = if rng.r#gen() {
                                         BlockPlacement::Above(position)
                                     } else {
                                         BlockPlacement::Below(position)
@@ -1596,7 +1594,7 @@ pub mod tests {
                         });
                     }
 
-                    if rng.gen() && fold_count > 0 {
+                    if rng.r#gen() && fold_count > 0 {
                         log::info!("unfolding ranges: {:?}", ranges);
                         map.update(cx, |map, cx| {
                             map.unfold_intersecting(ranges, true, cx);

crates/editor/src/display_map/block_map.rs

@@ -1351,13 +1351,16 @@ impl BlockSnapshot {
                 {
                     break;
                 }
-                if let Some(block) = &transform.block {
+                match &transform.block {
+                    Some(block) => {
                         cursor.next(&());
                         return Some((start_row, block));
-                } else {
+                    }
+                    _ => {
                         cursor.next(&());
                     }
                 }
+            }
             None
         })
     }
@@ -1405,13 +1408,18 @@ impl BlockSnapshot {
         cursor.seek(&wrap_row, Bias::Left, &());
 
         while let Some(transform) = cursor.item() {
-            if let Some(block) = transform.block.as_ref() {
+            match transform.block.as_ref() {
+                Some(block) => {
                     if block.id() == block_id {
                         return Some(block.clone());
                     }
-            } else if *cursor.start() > wrap_row {
+                }
+                _ => {
+                    if *cursor.start() > wrap_row {
                         break;
                     }
+                }
+            }
 
             cursor.next(&());
         }
@@ -1482,7 +1490,8 @@ impl BlockSnapshot {
     pub(super) fn line_len(&self, row: BlockRow) -> u32 {
         let mut cursor = self.transforms.cursor::<(BlockRow, WrapRow)>(&());
         cursor.seek(&BlockRow(row.0), Bias::Right, &());
-        if let Some(transform) = cursor.item() {
+        match cursor.item() {
+            Some(transform) => {
                 let (output_start, input_start) = cursor.start();
                 let overshoot = row.0 - output_start.0;
                 if transform.block.is_some() {
@@ -1490,12 +1499,16 @@ impl BlockSnapshot {
                 } else {
                     self.wrap_snapshot.line_len(input_start.0 + overshoot)
                 }
-        } else if row.0 == 0 {
+            }
+            _ => {
+                if row.0 == 0 {
                     0
                 } else {
                     panic!("row out of range");
                 }
             }
+        }
+    }
 
     pub(super) fn is_block_line(&self, row: BlockRow) -> bool {
         let mut cursor = self.transforms.cursor::<(BlockRow, WrapRow)>(&());
@@ -1536,7 +1549,8 @@ impl BlockSnapshot {
         let mut reversed = false;
 
         loop {
-            if let Some(transform) = cursor.item() {
+            match cursor.item() {
+                Some(transform) => {
                     let (output_start_row, input_start_row) = cursor.start();
                     let (output_end_row, input_end_row) = cursor.end(&());
                     let output_start = Point::new(output_start_row.0, 0);
@@ -1576,7 +1590,9 @@ impl BlockSnapshot {
                     } else {
                         cursor.next(&());
                     }
-            } else if reversed {
+                }
+                _ => {
+                    if reversed {
                         return self.max_point();
                     } else {
                         reversed = true;
@@ -1585,11 +1601,14 @@ impl BlockSnapshot {
                     }
                 }
             }
+        }
+    }
 
     pub fn to_block_point(&self, wrap_point: WrapPoint) -> BlockPoint {
         let mut cursor = self.transforms.cursor::<(WrapRow, BlockRow)>(&());
         cursor.seek(&WrapRow(wrap_point.row()), Bias::Right, &());
-        if let Some(transform) = cursor.item() {
+        match cursor.item() {
+            Some(transform) => {
                 if transform.block.is_some() {
                     BlockPoint::new(cursor.start().1 .0, 0)
                 } else {
@@ -1599,16 +1618,16 @@ impl BlockSnapshot {
                     let input_overshoot = wrap_point.0 - input_start;
                     BlockPoint(output_start + input_overshoot)
                 }
-        } else {
+            }
-            self.max_point()
+            _ => self.max_point(),
         }
     }
 
     pub fn to_wrap_point(&self, block_point: BlockPoint, bias: Bias) -> WrapPoint {
         let mut cursor = self.transforms.cursor::<(BlockRow, WrapRow)>(&());
         cursor.seek(&BlockRow(block_point.row), Bias::Right, &());
-        if let Some(transform) = cursor.item() {
+        match cursor.item() {
-            match transform.block.as_ref() {
+            Some(transform) => match transform.block.as_ref() {
                 Some(block) => {
                     if block.place_below() {
                         let wrap_row = cursor.start().1 .0 - 1;
@@ -1627,9 +1646,8 @@ impl BlockSnapshot {
                     let wrap_row = cursor.start().1 .0 + overshoot;
                     WrapPoint::new(wrap_row, block_point.column)
                 }
-            }
+            },
-        } else {
+            _ => self.wrap_snapshot.max_point(),
-            self.wrap_snapshot.max_point()
         }
     }
 }
@@ -1702,9 +1720,11 @@ impl<'a> Iterator for BlockChunks<'a> {
         }
 
         if self.input_chunk.text.is_empty() {
-            if let Some(input_chunk) = self.input_chunks.next() {
+            match self.input_chunks.next() {
+                Some(input_chunk) => {
                     self.input_chunk = input_chunk;
-            } else {
+                }
+                _ => {
                     if self.output_row < self.max_output_row {
                         self.output_row += 1;
                         self.advance();
@@ -1718,6 +1738,7 @@ impl<'a> Iterator for BlockChunks<'a> {
                     return None;
                 }
             }
+        }
 
         let transform_end = self.transforms.end(&()).0 .0;
         let (prefix_rows, prefix_bytes) =
@@ -1783,7 +1804,8 @@ impl Iterator for BlockRows<'_> {
         }
 
         let transform = self.transforms.item()?;
-        if let Some(block) = transform.block.as_ref() {
+        match transform.block.as_ref() {
+            Some(block) => {
                 if block.is_replacement() && self.transforms.start().0 == self.output_row {
                     if matches!(block, Block::FoldedBuffer { .. }) {
                         Some(RowInfo::default())
@@ -1793,8 +1815,8 @@ impl Iterator for BlockRows<'_> {
                 } else {
                     Some(RowInfo::default())
                 }
-        } else {
+            }
-            Some(self.input_rows.next().unwrap())
+            _ => Some(self.input_rows.next().unwrap()),
         }
     }
 }
@@ -2913,7 +2935,7 @@ mod tests {
 
         log::info!("Wrap width: {:?}", wrap_width);
         log::info!("Excerpt Header Height: {:?}", excerpt_header_height);
-        let is_singleton = rng.gen();
+        let is_singleton = rng.r#gen();
         let buffer = if is_singleton {
             let len = rng.gen_range(0..10);
             let text = RandomCharIter::new(&mut rng).take(len).collect::<String>();

crates/editor/src/display_map/fold_map.rs

@@ -602,12 +602,14 @@ impl FoldSnapshot {
         if let Some(transform) = cursor.item() {
             let start_in_transform = range.start.0 - cursor.start().0 .0;
             let end_in_transform = cmp::min(range.end, cursor.end(&()).0).0 - cursor.start().0 .0;
-            if let Some(placeholder) = transform.placeholder.as_ref() {
+            match transform.placeholder.as_ref() {
+                Some(placeholder) => {
                     summary = TextSummary::from(
                         &placeholder.text
                             [start_in_transform.column as usize..end_in_transform.column as usize],
                     );
-            } else {
+                }
+                _ => {
                     let inlay_start = self
                         .inlay_snapshot
                         .to_offset(InlayPoint(cursor.start().1 .0 + start_in_transform));
@@ -619,6 +621,7 @@ impl FoldSnapshot {
                         .text_summary_for_range(inlay_start..inlay_end);
                 }
             }
+        }
 
         if range.end > cursor.end(&()).0 {
             cursor.next(&());
@@ -627,10 +630,13 @@ impl FoldSnapshot {
                 .output;
             if let Some(transform) = cursor.item() {
                 let end_in_transform = range.end.0 - cursor.start().0 .0;
-                if let Some(placeholder) = transform.placeholder.as_ref() {
+                match transform.placeholder.as_ref() {
-                    summary +=
+                    Some(placeholder) => {
-                        TextSummary::from(&placeholder.text[..end_in_transform.column as usize]);
+                        summary += TextSummary::from(
-                } else {
+                            &placeholder.text[..end_in_transform.column as usize],
+                        );
+                    }
+                    _ => {
                         let inlay_start = self.inlay_snapshot.to_offset(cursor.start().1);
                         let inlay_end = self
                             .inlay_snapshot
@@ -641,6 +647,7 @@ impl FoldSnapshot {
                     }
                 }
             }
+        }
 
         summary
     }
@@ -822,7 +829,8 @@ impl FoldSnapshot {
     pub fn clip_point(&self, point: FoldPoint, bias: Bias) -> FoldPoint {
         let mut cursor = self.transforms.cursor::<(FoldPoint, InlayPoint)>(&());
         cursor.seek(&point, Bias::Right, &());
-        if let Some(transform) = cursor.item() {
+        match cursor.item() {
+            Some(transform) => {
                 let transform_start = cursor.start().0 .0;
                 if transform.placeholder.is_some() {
                     if point.0 == transform_start || matches!(bias, Bias::Left) {
@@ -836,8 +844,8 @@ impl FoldSnapshot {
                     let clipped_inlay_point = self.inlay_snapshot.clip_point(inlay_point, bias);
                     FoldPoint(cursor.start().0 .0 + (clipped_inlay_point - cursor.start().1).0)
                 }
-        } else {
+            }
-            FoldPoint(self.transforms.summary().output.lines)
+            _ => FoldPoint(self.transforms.summary().output.lines),
         }
     }
 }
@@ -1616,7 +1624,7 @@ mod tests {
 
         let len = rng.gen_range(0..10);
         let text = RandomCharIter::new(&mut rng).take(len).collect::<String>();
-        let buffer = if rng.gen() {
+        let buffer = if rng.r#gen() {
             MultiBuffer::build_simple(&text, cx)
         } else {
             MultiBuffer::build_random(&mut rng, cx)
@@ -1962,7 +1970,7 @@ mod tests {
                         let start = buffer.clip_offset(rng.gen_range(0..=end), Left);
                         to_unfold.push(start..end);
                     }
-                    let inclusive = rng.gen();
+                    let inclusive = rng.r#gen();
                     log::info!("unfolding {:?} (inclusive: {})", to_unfold, inclusive);
                     let (mut writer, snapshot, edits) = self.write(inlay_snapshot, vec![]);
                     snapshot_edits.push((snapshot, edits));

crates/editor/src/display_map/inlay_map.rs

@@ -610,9 +610,9 @@ impl InlayMap {
         let mut to_insert = Vec::new();
         let snapshot = &mut self.snapshot;
         for i in 0..rng.gen_range(1..=5) {
-            if self.inlays.is_empty() || rng.gen() {
+            if self.inlays.is_empty() || rng.r#gen() {
                 let position = snapshot.buffer.random_byte_range(0, rng).start;
-                let bias = if rng.gen() { Bias::Left } else { Bias::Right };
+                let bias = if rng.r#gen() { Bias::Left } else { Bias::Right };
                 let len = if rng.gen_bool(0.01) {
                     0
                 } else {
@@ -809,7 +809,8 @@ impl InlaySnapshot {
             match cursor.item() {
                 Some(Transform::Isomorphic(transform)) => {
                     if cursor.start().0 == point {
-                        if let Some(Transform::Inlay(inlay)) = cursor.prev_item() {
+                        match cursor.prev_item() {
+                            Some(Transform::Inlay(inlay)) => {
                                 if inlay.position.bias() == Bias::Left {
                                     return point;
                                 } else if bias == Bias::Left {
@@ -819,11 +820,14 @@ impl InlaySnapshot {
                                 } else {
                                     point.0 += Point::new(0, 1);
                                 }
-                        } else {
+                            }
+                            _ => {
                                 return point;
                             }
+                        }
                     } else if cursor.end(&()).0 == point {
-                        if let Some(Transform::Inlay(inlay)) = cursor.next_item() {
+                        match cursor.next_item() {
+                            Some(Transform::Inlay(inlay)) => {
                                 if inlay.position.bias() == Bias::Right {
                                     return point;
                                 } else if bias == Bias::Right {
@@ -834,9 +838,11 @@ impl InlaySnapshot {
                                 } else {
                                     point.0.column -= 1;
                                 }
-                        } else {
+                            }
+                            _ => {
                                 return point;
                             }
+                        }
                     } else {
                         let overshoot = point.0 - cursor.start().0 .0;
                         let buffer_point = cursor.start().1 + overshoot;
@@ -1500,7 +1506,7 @@ mod tests {
             .unwrap_or(10);
 
         let len = rng.gen_range(0..30);
-        let buffer = if rng.gen() {
+        let buffer = if rng.r#gen() {
             let text = util::RandomCharIter::new(&mut rng)
                 .take(len)
                 .collect::<String>();
@@ -1709,7 +1715,8 @@ mod tests {
                     buffer_point
                 );
 
-                if let Some(ch) = buffer_chars.next() {
+                match buffer_chars.next() {
+                    Some(ch) => {
                         if ch == '\n' {
                             buffer_point += Point::new(1, 0);
                         } else {
@@ -1720,10 +1727,12 @@ mod tests {
                         let new_inlay_point = inlay_snapshot.to_inlay_point(buffer_point);
                         assert!(new_inlay_point > inlay_point);
                         inlay_point = new_inlay_point;
-                } else {
+                    }
+                    _ => {
                         break;
                     }
                 }
+            }
 
             let mut inlay_point = InlayPoint::default();
             let mut inlay_offset = InlayOffset::default();

crates/editor/src/display_map/tab_map.rs

@@ -534,17 +534,20 @@ impl<'a> Iterator for TabChunks<'a> {
 
     fn next(&mut self) -> Option<Self::Item> {
         if self.chunk.text.is_empty() {
-            if let Some(chunk) = self.fold_chunks.next() {
+            match self.fold_chunks.next() {
+                Some(chunk) => {
                     self.chunk = chunk;
                     if self.inside_leading_tab {
                         self.chunk.text = &self.chunk.text[1..];
                         self.inside_leading_tab = false;
                         self.input_column += 1;
                     }
-            } else {
+                }
+                _ => {
                     return None;
                 }
             }
+        }
 
         for (ix, c) in self.chunk.text.char_indices() {
             match c {
@@ -738,7 +741,7 @@ mod tests {
     fn test_random_tabs(cx: &mut gpui::App, mut rng: StdRng) {
         let tab_size = NonZeroU32::new(rng.gen_range(1..=4)).unwrap();
         let len = rng.gen_range(0..30);
-        let buffer = if rng.gen() {
+        let buffer = if rng.r#gen() {
             let text = util::RandomCharIter::new(&mut rng)
                 .take(len)
                 .collect::<String>();

crates/editor/src/display_map/wrap_map.rs

@@ -1207,7 +1207,7 @@ mod tests {
         log::info!("Wrap width: {:?}", wrap_width);
 
         let buffer = cx.update(|cx| {
-            if rng.gen() {
+            if rng.r#gen() {
                 MultiBuffer::build_random(&mut rng, cx)
             } else {
                 let len = rng.gen_range(0..10);

crates/editor/src/editor.rs

@@ -1700,7 +1700,8 @@ impl Editor {
             }
         }
 
-        if let Some(singleton_buffer) = self.buffer.read(cx).as_singleton() {
+        match self.buffer.read(cx).as_singleton() {
+            Some(singleton_buffer) => {
                 if let Some(extension) = singleton_buffer
                     .read(cx)
                     .file()
@@ -1708,9 +1709,11 @@ impl Editor {
                 {
                     key_context.set("extension", extension.to_string());
                 }
-        } else {
+            }
+            _ => {
                 key_context.add("multibuffer");
             }
+        }
 
         if has_active_edit_prediction {
             if self.edit_prediction_in_conflict() {
@@ -1901,14 +1904,13 @@ impl Editor {
     pub fn snapshot(&self, window: &mut Window, cx: &mut App) -> EditorSnapshot {
         let git_blame_gutter_max_author_length = self
             .render_git_blame_gutter(cx)
-            .then(|| {
+            .then(|| match self.blame.as_ref() {
-                if let Some(blame) = self.blame.as_ref() {
+                Some(blame) => {
                     let max_author_length =
                         blame.update(cx, |blame, cx| blame.max_author_length(cx));
                     Some(max_author_length)
-                } else {
-                    None
                 }
+                _ => None,
             })
             .flatten();
 
@@ -2791,7 +2793,9 @@ impl Editor {
         if let Some(tail) = self.columnar_selection_tail.as_ref() {
             let tail = tail.to_display_point(&display_map);
             self.select_columns(tail, position, goal_column, &display_map, window, cx);
-        } else if let Some(mut pending) = self.selections.pending_anchor() {
+        } else {
+            match self.selections.pending_anchor() {
+                Some(mut pending) => {
                     let buffer = self.buffer.read(cx).snapshot(cx);
                     let head;
                     let tail;
@@ -2802,9 +2806,11 @@ impl Editor {
                             tail = pending.tail().to_point(&buffer);
                         }
                         SelectMode::Word(original_range) => {
-                    let original_display_range = original_range.start.to_display_point(&display_map)
+                            let original_display_range =
+                                original_range.start.to_display_point(&display_map)
                                     ..original_range.end.to_display_point(&display_map);
-                    let original_buffer_range = original_display_range.start.to_point(&display_map)
+                            let original_buffer_range =
+                                original_display_range.start.to_point(&display_map)
                                     ..original_display_range.end.to_point(&display_map);
                             if movement::is_inside_word(&display_map, position)
                                 || original_display_range.contains(&position)
@@ -2826,7 +2832,8 @@ impl Editor {
                             }
                         }
                         SelectMode::Line(original_range) => {
-                    let original_range = original_range.to_point(&display_map.buffer_snapshot);
+                            let original_range =
+                                original_range.to_point(&display_map.buffer_snapshot);
 
                             let position = display_map
                                 .clip_point(position, Bias::Left)
@@ -2867,10 +2874,13 @@ impl Editor {
                     self.change_selections(None, window, cx, |s| {
                         s.set_pending(pending, mode);
                     });
-        } else {
+                }
+                _ => {
                     log::error!("update_selection dispatched with no pending selection");
                     return;
                 }
+            }
+        }
 
         self.apply_scroll_delta(scroll_delta, window, cx);
         cx.notify();
@@ -3492,9 +3502,8 @@ impl Editor {
                         let end = selection.end;
                         let selection_is_empty = start == end;
                         let language_scope = buffer.language_scope_at(start);
-                        let (comment_delimiter, insert_extra_newline) = if let Some(language) =
+                        let (comment_delimiter, insert_extra_newline) = match &language_scope {
-                            &language_scope
+                            Some(language) => {
-                        {
                                 let insert_extra_newline =
                                     insert_extra_newline_brackets(&buffer, start..end, language)
                                         || insert_extra_newline_tree_sitter(&buffer, start..end);
@@ -3505,15 +3514,16 @@ impl Editor {
                                         return None;
                                     }
 
-                                if !multi_buffer.language_settings(cx).extend_comment_on_newline {
+                                    if !multi_buffer.language_settings(cx).extend_comment_on_newline
+                                    {
                                         return None;
                                     }
 
                                     let delimiters = language.line_comment_prefixes();
                                     let max_len_of_delimiter =
                                         delimiters.iter().map(|delimiter| delimiter.len()).max()?;
-                                let (snapshot, range) =
+                                    let (snapshot, range) = buffer
-                                    buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
+                                        .buffer_line_for_row(MultiBufferRow(start_point.row))?;
 
                                     let mut index_of_first_non_whitespace = 0;
                                     let comment_candidate = snapshot
@@ -3527,7 +3537,8 @@ impl Editor {
                                         })
                                         .take(max_len_of_delimiter)
                                         .collect::<String>();
-                                let comment_prefix = delimiters.iter().find(|comment_prefix| {
+                                    let comment_prefix =
+                                        delimiters.iter().find(|comment_prefix| {
                                             comment_candidate.starts_with(comment_prefix.as_ref())
                                         })?;
                                     let cursor_is_placed_after_comment_marker =
@@ -3540,8 +3551,8 @@ impl Editor {
                                     }
                                 });
                                 (comment_delimiter, insert_extra_newline)
-                        } else {
+                            }
-                            (None, false)
+                            _ => (None, false),
                         };
 
                         let capacity_for_delimiter = comment_delimiter
@@ -3810,16 +3821,15 @@ impl Editor {
             return false;
         };
 
-        if let Some(completion_provider) = &self.completion_provider {
+        match &self.completion_provider {
-            completion_provider.is_completion_trigger(
+            Some(completion_provider) => completion_provider.is_completion_trigger(
                 &buffer,
                 position.text_anchor,
                 text,
                 trigger_in_words,
                 cx,
-            )
+            ),
-        } else {
+            _ => false,
-            false
         }
     }
 
@@ -4268,10 +4278,11 @@ impl Editor {
             return;
         }
         let (buffer, buffer_position) =
-            if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
+            match self.buffer.read(cx).text_anchor_for_position(position, cx) {
-                output
+                Some(output) => output,
-            } else {
+                _ => {
                     return;
+                }
             };
         let buffer_snapshot = buffer.read(cx).snapshot();
         let show_completion_documentation = buffer_snapshot
@@ -4499,11 +4510,12 @@ impl Editor {
     #[cfg(feature = "test-support")]
     pub fn current_completions(&self) -> Option<Vec<project::Completion>> {
         let menu = self.context_menu.borrow();
-        if let CodeContextMenu::Completions(menu) = menu.as_ref()? {
+        match menu.as_ref()? {
+            CodeContextMenu::Completions(menu) => {
                 let completions = menu.completions.borrow();
                 Some(completions.to_vec())
-        } else {
+            }
-            None
+            _ => None,
         }
     }
 
@@ -4536,11 +4548,11 @@ impl Editor {
     ) -> Option<Task<Result<()>>> {
         use language::ToOffset as _;
 
-        let completions_menu =
+        let completions_menu = match self.hide_context_menu(window, cx)? {
-            if let CodeContextMenu::Completions(menu) = self.hide_context_menu(window, cx)? {
+            CodeContextMenu::Completions(menu) => menu,
-                menu
+            _ => {
-            } else {
                 return None;
+            }
         };
 
         let candidate_id = {
@@ -4650,7 +4662,8 @@ impl Editor {
         });
 
         self.transact(window, cx, |this, window, cx| {
-            if let Some(mut snippet) = snippet {
+            match snippet {
+                Some(mut snippet) => {
                     snippet.text = text.to_string();
                     for tabstop in snippet
                         .tabstops
@@ -4662,12 +4675,14 @@ impl Editor {
                     }
 
                     this.insert_snippet(&ranges, snippet, window, cx).log_err();
-            } else {
+                }
+                _ => {
                     this.buffer.update(cx, |buffer, cx| {
                         let edits = ranges.iter().map(|range| (range.clone(), text));
                         buffer.edit(edits, this.autoindent_mode.clone(), cx);
                     });
                 }
+            }
             for (buffer, edits) in linked_edits {
                 buffer.update(cx, |buffer, cx| {
                     let snapshot = buffer.snapshot();
@@ -4818,7 +4833,7 @@ impl Editor {
                             && code_actions
                                 .as_ref()
                                 .map_or(true, |actions| actions.is_empty());
-                        if let Ok(task) = editor.update_in(cx, |editor, window, cx| {
+                        match editor.update_in(cx, |editor, window, cx| {
                             *editor.context_menu.borrow_mut() =
                                 Some(CodeContextMenu::CodeActions(CodeActionsMenu {
                                     buffer,
@@ -4843,9 +4858,8 @@ impl Editor {
                             cx.notify();
                             Task::ready(Ok(()))
                         }) {
-                            task.await
+                            Ok(task) => task.await,
-                        } else {
+                            _ => Ok(()),
-                            Ok(())
                         }
                     }))
                 } else {
@@ -4869,11 +4883,11 @@ impl Editor {
     ) -> Option<Task<Result<()>>> {
         self.hide_mouse_cursor(&HideMouseCursorOrigin::TypingAction);
 
-        let actions_menu =
+        let actions_menu = match self.hide_context_menu(window, cx)? {
-            if let CodeContextMenu::CodeActions(menu) = self.hide_context_menu(window, cx)? {
+            CodeContextMenu::CodeActions(menu) => menu,
-                menu
+            _ => {
-            } else {
                 return None;
+            }
         };
 
         let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
@@ -4911,7 +4925,8 @@ impl Editor {
                             return Some(Task::ready(Ok(())));
                         }
 
-                        if let Some(project) = self.project.as_ref() {
+                        match self.project.as_ref() {
+                            Some(project) => {
                                 project
                                     .update(cx, |project, cx| {
                                         project.start_debug_session(
@@ -4921,8 +4936,8 @@ impl Editor {
                                     })
                                     .detach_and_log_err(cx);
                                 Some(Task::ready(Ok(())))
-                        } else {
+                            }
-                            Some(Task::ready(Ok(())))
+                            _ => Some(Task::ready(Ok(()))),
                         }
                     }
                 }
@@ -4967,7 +4982,8 @@ impl Editor {
         // If the project transaction's edits are all contained within this editor, then
         // avoid opening a new editor to display them.
 
-        if let Some((buffer, transaction)) = entries.first() {
+        match entries.first() {
+            Some((buffer, transaction)) => {
                 if entries.len() == 1 {
                     let excerpt = this.update(cx, |editor, cx| {
                         editor
@@ -4993,9 +5009,11 @@ impl Editor {
                         }
                     }
                 }
-        } else {
+            }
+            _ => {
                 return Ok(());
             }
+        }
 
         let mut ranges_to_highlight = Vec::new();
         let excerpt_buffer = cx.new(|cx| {
@@ -5166,16 +5184,15 @@ impl Editor {
                 .timer(Duration::from_millis(debounce))
                 .await;
 
-            let highlights = if let Some(highlights) = cx
+            let highlights = match cx
                 .update(|cx| {
                     provider.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
                 })
                 .ok()
                 .flatten()
             {
-                highlights.await.log_err()
+                Some(highlights) => highlights.await.log_err(),
-            } else {
+                _ => None,
-                None
             };
 
             if let Some(highlights) = highlights {
@@ -5489,12 +5506,11 @@ impl Editor {
 
     pub fn edit_predictions_enabled_at_cursor(&self, cx: &App) -> bool {
         let cursor = self.selections.newest_anchor().head();
-        if let Some((buffer, cursor_position)) =
+        match self.buffer.read(cx).text_anchor_for_position(cursor, cx) {
-            self.buffer.read(cx).text_anchor_for_position(cursor, cx)
+            Some((buffer, cursor_position)) => {
-        {
                 self.edit_predictions_enabled_in_buffer(&buffer, cursor_position, cx)
-        } else {
+            }
-            false
+            _ => false,
         }
     }
 
@@ -9930,13 +9946,13 @@ impl Editor {
         self.hide_mouse_cursor(&HideMouseCursorOrigin::TypingAction);
 
         if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
-            if let Some((selections, _)) =
+            match self.selection_history.transaction(transaction_id).cloned() {
-                self.selection_history.transaction(transaction_id).cloned()
+                Some((selections, _)) => {
-            {
                     self.change_selections(None, window, cx, |s| {
                         s.select_anchors(selections.to_vec());
                     });
-            } else {
+                }
+                _ => {
                     log::error!(
                         "No entry in selection_history found for undo. \
                      This may correspond to a bug where undo does not update the selection. \
@@ -9944,6 +9960,7 @@ impl Editor {
                      https://github.com/zed-industries/zed/issues/22692"
                     );
                 }
+            }
             self.request_autoscroll(Autoscroll::fit(), cx);
             self.unmark_text(window, cx);
             self.refresh_inline_completion(true, false, window, cx);
@@ -9960,13 +9977,13 @@ impl Editor {
         self.hide_mouse_cursor(&HideMouseCursorOrigin::TypingAction);
 
         if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
-            if let Some((_, Some(selections))) =
+            match self.selection_history.transaction(transaction_id).cloned() {
-                self.selection_history.transaction(transaction_id).cloned()
+                Some((_, Some(selections))) => {
-            {
                     self.change_selections(None, window, cx, |s| {
                         s.select_anchors(selections.to_vec());
                     });
-            } else {
+                }
+                _ => {
                     log::error!(
                         "No entry in selection_history found for redo. \
                      This may correspond to a bug where undo does not update the selection. \
@@ -9974,6 +9991,7 @@ impl Editor {
                      https://github.com/zed-industries/zed/issues/22692"
                     );
                 }
+            }
             self.request_autoscroll(Autoscroll::fit(), cx);
             self.unmark_text(window, cx);
             self.refresh_inline_completion(true, false, window, cx);
@@ -11377,7 +11395,8 @@ impl Editor {
 
         let buffer = &display_map.buffer_snapshot;
         let mut selections = self.selections.all::<usize>(cx);
-        if let Some(mut select_next_state) = self.select_next_state.take() {
+        match self.select_next_state.take() {
+            Some(mut select_next_state) => {
                 let query = &select_next_state.query;
                 if !select_next_state.done {
                     let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
@@ -11386,7 +11405,8 @@ impl Editor {
 
                     let bytes_after_last_selection =
                         buffer.bytes_in_range(last_selection.end..buffer.len());
-                let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
+                    let bytes_before_first_selection =
+                        buffer.bytes_in_range(0..first_selection.start);
                     let query_matches = query
                         .stream_find_iter(bytes_after_last_selection)
                         .map(|result| (last_selection.end, result))
@@ -11433,7 +11453,8 @@ impl Editor {
                 }
 
                 self.select_next_state = Some(select_next_state);
-        } else {
+            }
+            _ => {
                 let mut only_carets = true;
                 let mut same_text_selected = true;
                 let mut selected_text = None;
@@ -11519,6 +11540,7 @@ impl Editor {
                     )?;
                 }
             }
+        }
         Ok(())
     }
 
@@ -11639,7 +11661,8 @@ impl Editor {
         let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
         let buffer = &display_map.buffer_snapshot;
         let mut selections = self.selections.all::<usize>(cx);
-        if let Some(mut select_prev_state) = self.select_prev_state.take() {
+        match self.select_prev_state.take() {
+            Some(mut select_prev_state) => {
                 let query = &select_prev_state.query;
                 if !select_prev_state.done {
                     let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
@@ -11688,7 +11711,8 @@ impl Editor {
                 }
 
                 self.select_prev_state = Some(select_prev_state);
-        } else {
+            }
+            _ => {
                 let mut only_carets = true;
                 let mut same_text_selected = true;
                 let mut selected_text = None;
@@ -11762,13 +11786,17 @@ impl Editor {
                     });
                 } else if let Some(selected_text) = selected_text {
                     self.select_prev_state = Some(SelectNextState {
-                    query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
+                        query: AhoCorasick::new(&[selected_text
+                            .chars()
+                            .rev()
+                            .collect::<String>()])?,
                         wordwise: false,
                         done: false,
                     });
                     self.select_previous(action, window, cx)?;
                 }
             }
+        }
         Ok(())
     }
 
@@ -11873,12 +11901,13 @@ impl Editor {
                 let start_column = snapshot
                     .indent_size_for_line(MultiBufferRow(selection.start.row))
                     .len;
-                let language = if let Some(language) =
+                let language = match snapshot
-                    snapshot.language_scope_at(Point::new(selection.start.row, start_column))
+                    .language_scope_at(Point::new(selection.start.row, start_column))
                 {
-                    language
+                    Some(language) => language,
-                } else {
+                    _ => {
                         continue;
+                    }
                 };
 
                 selection_edit_ranges.clear();
@@ -11969,11 +11998,12 @@ impl Editor {
                             (position..position, first_prefix.clone())
                         }));
                     }
-                } else if let Some((full_comment_prefix, comment_suffix)) =
+                } else {
-                    language.block_comment_delimiters()
+                    match language.block_comment_delimiters() {
-                {
+                        Some((full_comment_prefix, comment_suffix)) => {
                             let comment_prefix = full_comment_prefix.trim_end_matches(' ');
-                    let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
+                            let comment_prefix_whitespace =
+                                &full_comment_prefix[comment_prefix.len()..];
                             let prefix_range = comment_prefix_range(
                                 snapshot.deref(),
                                 start_row,
@@ -11993,16 +12023,22 @@ impl Editor {
                                     prefix_range.start..prefix_range.start,
                                     full_comment_prefix.clone(),
                                 ));
-                        edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
+                                edits.push((
+                                    suffix_range.end..suffix_range.end,
+                                    comment_suffix.clone(),
+                                ));
                                 suffixes_inserted.push((end_row, comment_suffix.len()));
                             } else {
                                 edits.push((prefix_range, empty_str.clone()));
                                 edits.push((suffix_range, empty_str.clone()));
                             }
-                } else {
+                        }
+                        _ => {
                             continue;
                         }
                     }
+                }
+            }
 
             drop(snapshot);
             this.buffer.update(cx, |buffer, cx| {
@@ -13023,10 +13059,11 @@ impl Editor {
         };
         let head = self.selections.newest::<usize>(cx).head();
         let buffer = self.buffer.read(cx);
-        let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
+        let (buffer, head) = match buffer.text_anchor_for_position(head, cx) {
-            text_anchor
+            Some(text_anchor) => text_anchor,
-        } else {
+            _ => {
                 return Task::ready(Ok(Navigated::No));
+            }
         };
 
         let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
@@ -13163,20 +13200,17 @@ impl Editor {
                     cx.open_url(&url);
                     Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
                 }
-                HoverLink::File(path) => {
+                HoverLink::File(path) => match self.workspace() {
-                    if let Some(workspace) = self.workspace() {
+                    Some(workspace) => cx.spawn_in(window, async move |_, cx| {
-                        cx.spawn_in(window, async move |_, cx| {
                         workspace
                             .update_in(cx, |workspace, window, cx| {
                                 workspace.open_resolved_path(path, window, cx)
                             })?
                             .await
                             .map(|_| TargetTaskResult::AlreadyNavigated)
-                        })
+                    }),
-                    } else {
+                    _ => Task::ready(Ok(TargetTaskResult::Location(None))),
-                        Task::ready(Ok(TargetTaskResult::Location(None)))
+                },
-                    }
-                }
             };
             cx.spawn_in(window, async move |editor, cx| {
                 let target = match target_task.await.context("target resolution task")? {
@@ -13572,10 +13606,9 @@ impl Editor {
         drop(snapshot);
 
         Some(cx.spawn_in(window, async move |this, cx| {
-            let rename_range = if let Some(range) = prepare_rename.await? {
+            let rename_range = match prepare_rename.await? {
-                Some(range)
+                Some(range) => Some(range),
-            } else {
+                _ => this.update(cx, |this, cx| {
-                this.update(cx, |this, cx| {
                     let buffer = this.buffer.read(cx).snapshot(cx);
                     let mut buffer_highlights = this
                         .document_highlights_for_position(selection.head(), &buffer)
@@ -13586,7 +13619,7 @@ impl Editor {
                     buffer_highlights
                         .next()
                         .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
-                })?
+                })?,
             };
             if let Some(rename_range) = rename_range {
                 this.update_in(cx, |this, window, cx| {
@@ -14321,22 +14354,26 @@ impl Editor {
         now: Instant,
         cx: &mut Context<Self>,
     ) -> Option<TransactionId> {
-        if let Some(transaction_id) = self
+        match self
             .buffer
             .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
         {
-            if let Some((_, end_selections)) =
+            Some(transaction_id) => {
-                self.selection_history.transaction_mut(transaction_id)
+                match self.selection_history.transaction_mut(transaction_id) {
-            {
+                    Some((_, end_selections)) => {
                         *end_selections = Some(self.selections.disjoint_anchors());
-            } else {
+                    }
-                log::error!("unexpectedly ended a transaction that wasn't started by this editor");
+                    _ => {
+                        log::error!(
+                            "unexpectedly ended a transaction that wasn't started by this editor"
+                        );
+                    }
                 }
 
                 cx.emit(EditorEvent::Edited { transaction_id });
                 Some(transaction_id)
-        } else {
+            }
-            None
+            _ => None,
         }
     }
 
@@ -14454,13 +14491,13 @@ impl Editor {
                     let mut found = false;
                     let mut row = range.start.row;
                     while row <= range.end.row {
-                        if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row))
+                        match display_map.crease_for_buffer_row(MultiBufferRow(row)) {
-                        {
+                            Some(crease) => {
                                 found = true;
                                 row = crease.range().end.row + 1;
                                 to_fold.push(crease);
-                        } else {
+                            }
-                            row += 1
+                            _ => row += 1,
                         }
                     }
                     if found {
@@ -15067,10 +15104,9 @@ impl Editor {
             }
         }
 
-        if let Some(project) = &self.project {
+        match &self.project {
-            project.update(cx, |project, cx| project.save_buffers(buffers, cx))
+            Some(project) => project.update(cx, |project, cx| project.save_buffers(buffers, cx)),
-        } else {
+            _ => Task::ready(Ok(())),
-            Task::ready(Ok(()))
         }
     }
 
@@ -15715,10 +15751,9 @@ impl Editor {
     }
 
     pub fn project_path(&self, cx: &App) -> Option<ProjectPath> {
-        if let Some(buffer) = self.buffer.read(cx).as_singleton() {
+        match self.buffer.read(cx).as_singleton() {
-            buffer.read(cx).project_path(cx)
+            Some(buffer) => buffer.read(cx).project_path(cx),
-        } else {
+            _ => None,
-            None
         }
     }
 
@@ -17401,13 +17436,15 @@ impl Editor {
     fn handle_focus(&mut self, window: &mut Window, cx: &mut Context<Self>) {
         cx.emit(EditorEvent::Focused);
 
-        if let Some(descendant) = self
+        match self
             .last_focused_descendant
             .take()
             .and_then(|descendant| descendant.upgrade())
         {
+            Some(descendant) => {
                 window.focus(&descendant);
-        } else {
+            }
+            _ => {
                 if let Some(blame) = self.blame.as_ref() {
                     blame.update(cx, GitBlame::focus)
                 }
@@ -17427,6 +17464,7 @@ impl Editor {
                 });
             }
         }
+    }
 
     fn handle_focus_in(&mut self, _: &mut Window, cx: &mut Context<Self>) {
         cx.emit(EditorEvent::FocusedIn)
@@ -18700,7 +18738,7 @@ impl EditorSnapshot {
         range: &'a Range<Anchor>,
         collaboration_hub: &dyn CollaborationHub,
         cx: &'a App,
-    ) -> impl 'a + Iterator<Item = RemoteSelection> {
+    ) -> impl 'a + Iterator<Item = RemoteSelection> + use<'a> {
         let participant_names = collaboration_hub.user_names(cx);
         let participant_indices = collaboration_hub.user_participant_indices(cx);
         let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
@@ -18993,14 +19031,15 @@ impl EditorSnapshot {
         cx: &mut App,
     ) -> Option<AnyElement> {
         let folded = self.is_line_folded(buffer_row);
-        if let Crease::Inline { render_trailer, .. } = self
+        match self
             .crease_snapshot
             .query_row(buffer_row, &self.buffer_snapshot)?
         {
+            Crease::Inline { render_trailer, .. } => {
                 let render_trailer = render_trailer.as_ref()?;
                 Some(render_trailer(buffer_row, folded, window, cx))
-        } else {
+            }
-            None
+            _ => None,
         }
     }
 }
@@ -19995,7 +20034,7 @@ impl BreakpointPromptEditor {
             .log_err();
     }
 
-    fn render_prompt_editor(&self, cx: &mut Context<Self>) -> impl IntoElement {
+    fn render_prompt_editor(&self, cx: &mut Context<Self>) -> impl IntoElement + use<> {
         let settings = ThemeSettings::get_global(cx);
         let text_style = TextStyle {
             color: if self.prompt.read(cx).read_only(cx) {

crates/editor/src/editor_tests.rs

@@ -9526,16 +9526,18 @@ async fn test_word_completion(cx: &mut TestAppContext) {
     cx.condition(|editor, _| editor.context_menu_visible())
         .await;
     cx.update_editor(|editor, window, cx| {
-        if let Some(CodeContextMenu::Completions(menu)) = editor.context_menu.borrow_mut().as_ref()
+        match editor.context_menu.borrow_mut().as_ref() {
-        {
+            Some(CodeContextMenu::Completions(menu)) => {
                 assert_eq!(
                     completion_menu_entries(&menu),
                     &["first", "last"],
                     "When LSP server is fast to reply, no fallback word completions are used"
                 );
-        } else {
+            }
+            _ => {
                 panic!("expected completion menu to be open");
             }
+        }
         editor.cancel(&Cancel, window, cx);
     });
     cx.executor().run_until_parked();
@@ -9550,13 +9552,13 @@ async fn test_word_completion(cx: &mut TestAppContext) {
     cx.condition(|editor, _| editor.context_menu_visible())
         .await;
     cx.update_editor(|editor, _, _| {
-        if let Some(CodeContextMenu::Completions(menu)) = editor.context_menu.borrow_mut().as_ref()
+        match editor.context_menu.borrow_mut().as_ref()
-        {
+        { Some(CodeContextMenu::Completions(menu)) => {
             assert_eq!(completion_menu_entries(&menu), &["one", "three", "two"],
                 "When LSP server is slow, document words can be shown instead, if configured accordingly");
-        } else {
+        } _ => {
             panic!("expected completion menu to be open");
-        }
+        }}
     });
 }
 
@@ -9609,16 +9611,16 @@ async fn test_word_completions_do_not_duplicate_lsp_ones(cx: &mut TestAppContext
     cx.condition(|editor, _| editor.context_menu_visible())
         .await;
     cx.update_editor(|editor, _, _| {
-        if let Some(CodeContextMenu::Completions(menu)) = editor.context_menu.borrow_mut().as_ref()
+        match editor.context_menu.borrow_mut().as_ref()
-        {
+        { Some(CodeContextMenu::Completions(menu)) => {
             assert_eq!(
                 completion_menu_entries(&menu),
                 &["first", "last", "second"],
                 "Word completions that has the same edit as the any of the LSP ones, should not be proposed"
             );
-        } else {
+        } _ => {
             panic!("expected completion menu to be open");
-        }
+        }}
     });
 }
 
@@ -9663,34 +9665,36 @@ async fn test_word_completions_continue_on_typing(cx: &mut TestAppContext) {
     cx.executor().run_until_parked();
     cx.condition(|editor, _| editor.context_menu_visible())
         .await;
-    cx.update_editor(|editor, _, _| {
+    cx.update_editor(
-        if let Some(CodeContextMenu::Completions(menu)) = editor.context_menu.borrow_mut().as_ref()
+        |editor, _, _| match editor.context_menu.borrow_mut().as_ref() {
-        {
+            Some(CodeContextMenu::Completions(menu)) => {
                 assert_eq!(
                     completion_menu_entries(&menu),
                     &["first", "last", "second"],
                     "`ShowWordCompletions` action should show word completions"
                 );
-        } else {
+            }
+            _ => {
                 panic!("expected completion menu to be open");
             }
-    });
+        },
+    );
 
     cx.simulate_keystroke("l");
     cx.executor().run_until_parked();
     cx.condition(|editor, _| editor.context_menu_visible())
         .await;
     cx.update_editor(|editor, _, _| {
-        if let Some(CodeContextMenu::Completions(menu)) = editor.context_menu.borrow_mut().as_ref()
+        match editor.context_menu.borrow_mut().as_ref()
-        {
+        { Some(CodeContextMenu::Completions(menu)) => {
             assert_eq!(
                 completion_menu_entries(&menu),
                 &["last"],
                 "After showing word completions, further editing should filter them and not query the LSP"
             );
-        } else {
+        } _ => {
             panic!("expected completion menu to be open");
-        }
+        }}
     });
 }
 
@@ -9719,16 +9723,16 @@ async fn test_word_completions_usually_skip_digits(cx: &mut TestAppContext) {
     cx.condition(|editor, _| editor.context_menu_visible())
         .await;
     cx.update_editor(|editor, window, cx| {
-        if let Some(CodeContextMenu::Completions(menu)) = editor.context_menu.borrow_mut().as_ref()
+        match editor.context_menu.borrow_mut().as_ref()
-        {
+        { Some(CodeContextMenu::Completions(menu)) => {
             assert_eq!(
                 completion_menu_entries(&menu),
                 &["let"],
                 "With no digits in the completion query, no digits should be in the word completions"
             );
-        } else {
+        } _ => {
             panic!("expected completion menu to be open");
-        }
+        }}
         editor.cancel(&Cancel, window, cx);
     });
 
@@ -9745,13 +9749,13 @@ async fn test_word_completions_usually_skip_digits(cx: &mut TestAppContext) {
     cx.condition(|editor, _| editor.context_menu_visible())
         .await;
     cx.update_editor(|editor, _, _| {
-        if let Some(CodeContextMenu::Completions(menu)) = editor.context_menu.borrow_mut().as_ref()
+        match editor.context_menu.borrow_mut().as_ref()
-        {
+        { Some(CodeContextMenu::Completions(menu)) => {
             assert_eq!(completion_menu_entries(&menu), &["33", "35f32"], "The digit is in the completion query, \
                 return matching words with digits (`33`, `35f32`) but exclude query duplicates (`3`)");
-        } else {
+        } _ => {
             panic!("expected completion menu to be open");
-        }
+        }}
     });
 }
 
@@ -9914,8 +9918,8 @@ async fn test_multiline_completion(cx: &mut TestAppContext) {
 
     editor.update(cx, |editor, _| {
         assert!(editor.context_menu_visible());
-        if let Some(CodeContextMenu::Completions(menu)) = editor.context_menu.borrow_mut().as_ref()
+        match editor.context_menu.borrow_mut().as_ref()
-        {
+        { Some(CodeContextMenu::Completions(menu)) => {
             let completion_labels = menu
                 .completions
                 .borrow()
@@ -9944,9 +9948,9 @@ async fn test_multiline_completion(cx: &mut TestAppContext) {
                         "Adjusted completion items should still keep their filter ranges for the entire label. Item: {completion:?}"
                     );
                 }
-        } else {
+        } _ => {
             panic!("expected completion menu to be open");
-        }
+        }}
     });
 }
 
@@ -9981,39 +9985,45 @@ async fn test_completion_page_up_down_keys(cx: &mut TestAppContext) {
     cx.simulate_keystroke(".");
     cx.executor().run_until_parked();
 
-    cx.update_editor(|editor, _, _| {
+    cx.update_editor(
-        if let Some(CodeContextMenu::Completions(menu)) = editor.context_menu.borrow_mut().as_ref()
+        |editor, _, _| match editor.context_menu.borrow_mut().as_ref() {
-        {
+            Some(CodeContextMenu::Completions(menu)) => {
                 assert_eq!(completion_menu_entries(&menu), &["first", "last"]);
-        } else {
+            }
+            _ => {
                 panic!("expected completion menu to be open");
             }
-    });
+        },
+    );
 
     cx.update_editor(|editor, window, cx| {
         editor.move_page_down(&MovePageDown::default(), window, cx);
-        if let Some(CodeContextMenu::Completions(menu)) = editor.context_menu.borrow_mut().as_ref()
+        match editor.context_menu.borrow_mut().as_ref() {
-        {
+            Some(CodeContextMenu::Completions(menu)) => {
                 assert!(
                     menu.selected_item == 1,
                     "expected PageDown to select the last item from the context menu"
                 );
-        } else {
+            }
+            _ => {
                 panic!("expected completion menu to stay open after PageDown");
             }
+        }
     });
 
     cx.update_editor(|editor, window, cx| {
         editor.move_page_up(&MovePageUp::default(), window, cx);
-        if let Some(CodeContextMenu::Completions(menu)) = editor.context_menu.borrow_mut().as_ref()
+        match editor.context_menu.borrow_mut().as_ref() {
-        {
+            Some(CodeContextMenu::Completions(menu)) => {
                 assert!(
                     menu.selected_item == 0,
                     "expected PageUp to select the first item from the context menu"
                 );
-        } else {
+            }
+            _ => {
                 panic!("expected completion menu to stay open after PageUp");
             }
+        }
     });
 }
 
@@ -10074,17 +10084,19 @@ async fn test_completion_sort(cx: &mut TestAppContext) {
     });
     cx.executor().run_until_parked();
 
-    cx.update_editor(|editor, _, _| {
+    cx.update_editor(
-        if let Some(CodeContextMenu::Completions(menu)) = editor.context_menu.borrow_mut().as_ref()
+        |editor, _, _| match editor.context_menu.borrow_mut().as_ref() {
-        {
+            Some(CodeContextMenu::Completions(menu)) => {
                 assert_eq!(
                     completion_menu_entries(&menu),
                     &["r", "ret", "Range", "return"]
                 );
-        } else {
+            }
+            _ => {
                 panic!("expected completion menu to be open");
             }
-    });
+        },
+    );
 }
 
 #[gpui::test]
@@ -13056,42 +13068,48 @@ async fn test_completions_in_languages_with_extra_word_characters(cx: &mut TestA
     // word character in the 'element' scope, which contains the cursor.
     cx.simulate_keystroke("-");
     cx.executor().run_until_parked();
-    cx.update_editor(|editor, _, _| {
+    cx.update_editor(
-        if let Some(CodeContextMenu::Completions(menu)) = editor.context_menu.borrow_mut().as_ref()
+        |editor, _, _| match editor.context_menu.borrow_mut().as_ref() {
-        {
+            Some(CodeContextMenu::Completions(menu)) => {
                 assert_eq!(
                     completion_menu_entries(&menu),
                     &["bg-red", "bg-blue", "bg-yellow"]
                 );
-        } else {
+            }
+            _ => {
                 panic!("expected completion menu to be open");
             }
-    });
+        },
+    );
 
     cx.simulate_keystroke("l");
     cx.executor().run_until_parked();
-    cx.update_editor(|editor, _, _| {
+    cx.update_editor(
-        if let Some(CodeContextMenu::Completions(menu)) = editor.context_menu.borrow_mut().as_ref()
+        |editor, _, _| match editor.context_menu.borrow_mut().as_ref() {
-        {
+            Some(CodeContextMenu::Completions(menu)) => {
                 assert_eq!(completion_menu_entries(&menu), &["bg-blue", "bg-yellow"]);
-        } else {
+            }
+            _ => {
                 panic!("expected completion menu to be open");
             }
-    });
+        },
+    );
 
     // When filtering completions, consider the character after the '-' to
     // be the start of a subword.
     cx.set_state(r#"<p class="yelˇ" />"#);
     cx.simulate_keystroke("l");
     cx.executor().run_until_parked();
-    cx.update_editor(|editor, _, _| {
+    cx.update_editor(
-        if let Some(CodeContextMenu::Completions(menu)) = editor.context_menu.borrow_mut().as_ref()
+        |editor, _, _| match editor.context_menu.borrow_mut().as_ref() {
-        {
+            Some(CodeContextMenu::Completions(menu)) => {
                 assert_eq!(completion_menu_entries(&menu), &["bg-yellow"]);
-        } else {
+            }
+            _ => {
                 panic!("expected completion menu to be open");
             }
-    });
+        },
+    );
 }
 
 fn completion_menu_entries(menu: &CompletionsMenu) -> Vec<String> {
@@ -18691,7 +18709,7 @@ fn assert_selection_ranges(marked_text: &str, editor: &mut Editor, cx: &mut Cont
 pub fn handle_signature_help_request(
     cx: &mut EditorLspTestContext,
     mocked_response: lsp::SignatureHelp,
-) -> impl Future<Output = ()> {
+) -> impl Future<Output = ()> + use<> {
     let mut request =
         cx.set_request_handler::<lsp::request::SignatureHelpRequest, _, _>(move |_, _, _| {
             let mocked_response = mocked_response.clone();
@@ -18711,7 +18729,7 @@ pub fn handle_completion_request(
     marked_string: &str,
     completions: Vec<&'static str>,
     counter: Arc<AtomicUsize>,
-) -> impl Future<Output = ()> {
+) -> impl Future<Output = ()> + use<> {
     let complete_from_marker: TextRangeMarker = '|'.into();
     let replace_range_marker: TextRangeMarker = ('<', '>').into();
     let (_, mut marked_ranges) = marked_text_ranges_by(
@@ -18758,7 +18776,7 @@ pub fn handle_completion_request(
 fn handle_resolve_completion_request(
     cx: &mut EditorLspTestContext,
     edits: Option<Vec<(&'static str, &'static str)>>,
-) -> impl Future<Output = ()> {
+) -> impl Future<Output = ()> + use<> {
     let edits = edits.map(|edits| {
         edits
             .iter()

crates/editor/src/element.rs

@@ -432,69 +432,96 @@ impl EditorElement {
         register_action(editor, window, Editor::expand_all_diff_hunks);
 
         register_action(editor, window, |editor, action, window, cx| {
-            if let Some(task) = editor.format(action, window, cx) {
+            match editor.format(action, window, cx) {
+                Some(task) => {
                     task.detach_and_notify_err(window, cx);
-            } else {
+                }
+                _ => {
                     cx.propagate();
                 }
+            }
         });
         register_action(editor, window, |editor, action, window, cx| {
-            if let Some(task) = editor.format_selections(action, window, cx) {
+            match editor.format_selections(action, window, cx) {
+                Some(task) => {
                     task.detach_and_notify_err(window, cx);
-            } else {
+                }
+                _ => {
                     cx.propagate();
                 }
+            }
         });
         register_action(editor, window, |editor, action, window, cx| {
-            if let Some(task) = editor.organize_imports(action, window, cx) {
+            match editor.organize_imports(action, window, cx) {
+                Some(task) => {
                     task.detach_and_notify_err(window, cx);
-            } else {
+                }
+                _ => {
                     cx.propagate();
                 }
+            }
         });
         register_action(editor, window, Editor::restart_language_server);
         register_action(editor, window, Editor::show_character_palette);
         register_action(editor, window, |editor, action, window, cx| {
-            if let Some(task) = editor.confirm_completion(action, window, cx) {
+            match editor.confirm_completion(action, window, cx) {
+                Some(task) => {
                     task.detach_and_notify_err(window, cx);
-            } else {
+                }
+                _ => {
                     cx.propagate();
                 }
+            }
         });
         register_action(editor, window, |editor, action, window, cx| {
-            if let Some(task) = editor.compose_completion(action, window, cx) {
+            match editor.compose_completion(action, window, cx) {
+                Some(task) => {
                     task.detach_and_notify_err(window, cx);
-            } else {
+                }
+                _ => {
                     cx.propagate();
                 }
+            }
         });
         register_action(editor, window, |editor, action, window, cx| {
-            if let Some(task) = editor.confirm_code_action(action, window, cx) {
+            match editor.confirm_code_action(action, window, cx) {
+                Some(task) => {
                     task.detach_and_notify_err(window, cx);
-            } else {
+                }
+                _ => {
                     cx.propagate();
                 }
+            }
         });
         register_action(editor, window, |editor, action, window, cx| {
-            if let Some(task) = editor.rename(action, window, cx) {
+            match editor.rename(action, window, cx) {
+                Some(task) => {
                     task.detach_and_notify_err(window, cx);
-            } else {
+                }
+                _ => {
                     cx.propagate();
                 }
+            }
         });
         register_action(editor, window, |editor, action, window, cx| {
-            if let Some(task) = editor.confirm_rename(action, window, cx) {
+            match editor.confirm_rename(action, window, cx) {
+                Some(task) => {
                     task.detach_and_notify_err(window, cx);
-            } else {
+                }
+                _ => {
                     cx.propagate();
                 }
+            }
         });
         register_action(editor, window, |editor, action, window, cx| {
-            if let Some(task) = editor.find_all_references(action, window, cx) {
+            match editor.find_all_references(action, window, cx) {
+                Some(task) => {
                     task.detach_and_log_err(cx);
-            } else {
+                }
+                _ => {
                     cx.propagate();
                 }
+            }
         });
         register_action(editor, window, Editor::show_signature_help);
         register_action(editor, window, Editor::next_edit_prediction);
@@ -1097,10 +1124,12 @@ impl EditorElement {
                 selections.push((player, layouts));
             }
 
-            if let Some(collaboration_hub) = &editor.collaboration_hub {
+            match &editor.collaboration_hub {
+                Some(collaboration_hub) => {
                     // When following someone, render the local selections in their color.
                     if let Some(leader_id) = editor.leader_peer_id {
-                    if let Some(collaborator) = collaboration_hub.collaborators(cx).get(&leader_id)
+                        if let Some(collaborator) =
+                            collaboration_hub.collaborators(cx).get(&leader_id)
                         {
                             if let Some(participant_index) = collaboration_hub
                                 .user_participant_indices(cx)
@@ -1154,7 +1183,9 @@ impl EditorElement {
                     }
 
                     selections.extend(remote_selections.into_values());
-            } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
+                }
+                _ => {
+                    if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
                         let layouts = snapshot
                             .buffer_snapshot
                             .selections_in_range(&(start_anchor..end_anchor), true)
@@ -1173,6 +1204,8 @@ impl EditorElement {
                         let player = editor.current_user_player_color(cx);
                         selections.push((player, layouts));
                     }
+                }
+            }
         });
         (selections, active_rows, newest_selection_head)
     }
@@ -2056,20 +2089,17 @@ impl EditorElement {
         cx: &mut App,
     ) -> Vec<AnyElement> {
         self.editor.update(cx, |editor, cx| {
-            let active_task_indicator_row =
+            let active_task_indicator_row = match editor.context_menu.borrow().as_ref() {
-                if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
+                Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
                     deployed_from_indicator,
                     actions,
                     ..
-                })) = editor.context_menu.borrow().as_ref()
+                })) => actions
-                {
-                    actions
                     .tasks
                     .as_ref()
                     .map(|tasks| tasks.position.to_display_point(snapshot).row())
-                        .or(*deployed_from_indicator)
+                    .or(*deployed_from_indicator),
-                } else {
+                _ => None,
-                    None
             };
 
             let offset_range_start =
@@ -4079,11 +4109,12 @@ impl EditorElement {
         );
 
         let maybe_element = self.editor.update(cx, |editor, cx| {
-            if let Some(popover) = editor.signature_help_state.popover_mut() {
+            match editor.signature_help_state.popover_mut() {
+                Some(popover) => {
                     let element = popover.render(max_size, cx);
                     Some(element)
-            } else {
+                }
-                None
+                _ => None,
             }
         });
         if let Some(mut element) = maybe_element {
@@ -4189,7 +4220,11 @@ impl EditorElement {
                     None;
                 for (&new_row, &new_background) in &layout.highlighted_rows {
                     match &mut current_paint {
-                        Some((current_background, current_range, mut edges)) => {
+                        &mut Some((
+                            ref mut current_background,
+                            ref mut current_range,
+                            mut edges,
+                        )) => {
                             let current_background = *current_background;
                             let new_range_started = current_background != new_background
                                 || current_range.end.next_row() != new_row;
@@ -4916,7 +4951,7 @@ impl EditorElement {
                 }
 
                 editor.update(cx, |editor, cx| {
-                    if let Some((scrollbar_layout, axis)) = event
+                    match event
                         .pressed_button
                         .filter(|button| *button == MouseButton::Left)
                         .and(editor.scroll_manager.dragging_scrollbar_axis())
@@ -4924,8 +4959,8 @@ impl EditorElement {
                             scrollbars_layout
                                 .iter_scrollbars()
                                 .find(|(_, a)| *a == axis)
-                        })
+                        }) {
-                    {
+                        Some((scrollbar_layout, axis)) => {
                             let ScrollbarLayout {
                                 hitbox,
                                 text_unit_size,
@@ -4943,9 +4978,11 @@ impl EditorElement {
                                 editor.set_scroll_position(position, window, cx);
                             }
                             cx.stop_propagation();
-                    } else {
+                        }
+                        _ => {
                             editor.scroll_manager.reset_scrollbar_dragging_state(cx);
                         }
+                    }
 
                     if scrollbars_layout.get_hovered_axis(window).is_some() {
                         editor.scroll_manager.show_scrollbars(window, cx);
@@ -5655,13 +5692,12 @@ pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
 
 impl AcceptEditPredictionBinding {
     pub fn keystroke(&self) -> Option<&Keystroke> {
-        if let Some(binding) = self.0.as_ref() {
+        match self.0.as_ref() {
-            match &binding.keystrokes() {
+            Some(binding) => match &binding.keystrokes() {
                 [keystroke] => Some(keystroke),
                 _ => None,
-            }
+            },
-        } else {
+            _ => None,
-            None
         }
     }
 }
@@ -5949,7 +5985,8 @@ impl LineWithInvisibles {
             is_tab: false,
             replacement: None,
         }]) {
-            if let Some(replacement) = highlighted_chunk.replacement {
+            match highlighted_chunk.replacement {
+                Some(replacement) => {
                     if !line.is_empty() {
                         let shaped_line = window
                             .text_system()
@@ -6004,10 +6041,9 @@ impl LineWithInvisibles {
                             });
                         }
                         ChunkReplacement::Str(x) => {
-                        let text_style = if let Some(style) = highlighted_chunk.style {
+                            let text_style = match highlighted_chunk.style {
-                            Cow::Owned(text_style.clone().highlight(style))
+                                Some(style) => Cow::Owned(text_style.clone().highlight(style)),
-                        } else {
+                                _ => Cow::Borrowed(text_style),
-                            Cow::Borrowed(text_style)
                             };
 
                             let run = TextRun {
@@ -6029,7 +6065,8 @@ impl LineWithInvisibles {
                             fragments.push(LineFragment::Text(line_layout))
                         }
                     }
-            } else {
+                }
+                _ => {
                     for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
                         if ix > 0 {
                             let shaped_line = window
@@ -6058,10 +6095,9 @@ impl LineWithInvisibles {
                         }
 
                         if !line_chunk.is_empty() && !line_exceeded_max_len {
-                        let text_style = if let Some(style) = highlighted_chunk.style {
+                            let text_style = match highlighted_chunk.style {
-                            Cow::Owned(text_style.clone().highlight(style))
+                                Some(style) => Cow::Owned(text_style.clone().highlight(style)),
-                        } else {
+                                _ => Cow::Borrowed(text_style),
-                            Cow::Borrowed(text_style)
                             };
 
                             if line.len() + line_chunk.len() > max_line_len {
@@ -6117,6 +6153,7 @@ impl LineWithInvisibles {
                     }
                 }
             }
+        }
 
         layouts
     }
@@ -8067,17 +8104,18 @@ impl PositionMap {
         let x = position.x + (scroll_position.x * self.em_width);
         let row = ((y / self.line_height) + scroll_position.y) as u32;
 
-        let (column, x_overshoot_after_line_end) = if let Some(line) = self
+        let (column, x_overshoot_after_line_end) = match self
             .line_layouts
             .get(row as usize - scroll_position.y as usize)
         {
+            Some(line) => {
                 if let Some(ix) = line.index_for_x(x) {
                     (ix as u32, px(0.))
                 } else {
                     (line.len as u32, px(0.).max(x - line.width))
                 }
-        } else {
+            }
-            (0, x)
+            _ => (0, x),
         };
 
         let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);

crates/editor/src/git/blame.rs

@@ -192,7 +192,7 @@ impl GitBlame {
         &'a mut self,
         rows: &'a [RowInfo],
         cx: &App,
-    ) -> impl 'a + Iterator<Item = Option<BlameEntry>> {
+    ) -> impl 'a + Iterator<Item = Option<BlameEntry>> + use<'a> {
         self.sync(cx);
 
         let buffer_id = self.buffer_snapshot.remote_id();
@@ -480,15 +480,14 @@ async fn parse_commit_messages(
         .and_then(|remote_url| parse_git_remote_url(provider_registry, remote_url));
 
     for (oid, message) in messages {
-        let permalink = if let Some((provider, git_remote)) = parsed_remote_url.as_ref() {
+        let permalink = match parsed_remote_url.as_ref() {
-            Some(provider.build_commit_permalink(
+            Some((provider, git_remote)) => Some(provider.build_commit_permalink(
                 git_remote,
                 git::BuildCommitPermalinkParams {
                     sha: oid.to_string().as_str(),
                 },
-            ))
+            )),
-        } else {
+            _ => None,
-            None
         };
 
         let remote = parsed_remote_url

crates/editor/src/hover_links.rs

@@ -472,11 +472,9 @@ pub fn show_link_definition(
         _ => GotoDefinitionKind::Type,
     };
 
-    let (mut hovered_link_state, is_cached) =
+    let (mut hovered_link_state, is_cached) = match editor.hovered_link_state.take() {
-        if let Some(existing) = editor.hovered_link_state.take() {
+        Some(existing) => (existing, true),
-            (existing, true)
+        _ => (
-        } else {
-            (
             HoveredLinkState {
                 last_trigger_point: trigger_point.clone(),
                 symbol_range: None,
@@ -485,7 +483,7 @@ pub fn show_link_definition(
                 task: None,
             },
             false,
-            )
+        ),
     };
 
     if editor.pending_rename.is_some() {
@@ -537,9 +535,9 @@ pub fn show_link_definition(
     hovered_link_state.task = Some(cx.spawn_in(window, async move |this, cx| {
         async move {
             let result = match &trigger_point {
-                TriggerPoint::Text(_) => {
+                TriggerPoint::Text(_) => match find_url(&buffer, buffer_position, cx.clone()) {
-                    if let Some((url_range, url)) = find_url(&buffer, buffer_position, cx.clone()) {
+                    Some((url_range, url)) => this
-                        this.update(cx, |_, _| {
+                        .update(cx, |_, _| {
                             let range = maybe!({
                                 let start =
                                     snapshot.anchor_in_excerpt(excerpt_id, url_range.start)?;
@@ -548,24 +546,31 @@ pub fn show_link_definition(
                             });
                             (range, vec![HoverLink::Url(url)])
                         })
-                        .ok()
+                        .ok(),
-                    } else if let Some((filename_range, filename)) =
+                    _ => match find_file(&buffer, project.clone(), buffer_position, cx).await {
-                        find_file(&buffer, project.clone(), buffer_position, cx).await
+                        Some((filename_range, filename)) => {
-                    {
                             let range = maybe!({
                                 let start =
                                     snapshot.anchor_in_excerpt(excerpt_id, filename_range.start)?;
-                            let end = snapshot.anchor_in_excerpt(excerpt_id, filename_range.end)?;
+                                let end =
+                                    snapshot.anchor_in_excerpt(excerpt_id, filename_range.end)?;
                                 Some(RangeInEditor::Text(start..end))
                             });
 
                             Some((range, vec![HoverLink::File(filename)]))
-                    } else if let Some(provider) = provider {
+                        }
+                        _ => match provider {
+                            Some(provider) => {
                                 let task = cx.update(|_, cx| {
-                            provider.definitions(&buffer, buffer_position, preferred_kind, cx)
+                                    provider.definitions(
+                                        &buffer,
+                                        buffer_position,
+                                        preferred_kind,
+                                        cx,
+                                    )
                                 })?;
-                        if let Some(task) = task {
+                                match task {
-                            task.await.ok().map(|definition_result| {
+                                    Some(task) => task.await.ok().map(|definition_result| {
                                         (
                                             definition_result.iter().find_map(|link| {
                                                 link.origin.as_ref().and_then(|origin| {
@@ -573,21 +578,26 @@ pub fn show_link_definition(
                                                         excerpt_id,
                                                         origin.range.start,
                                                     )?;
-                                            let end = snapshot
+                                                    let end = snapshot.anchor_in_excerpt(
-                                                .anchor_in_excerpt(excerpt_id, origin.range.end)?;
+                                                        excerpt_id,
+                                                        origin.range.end,
+                                                    )?;
                                                     Some(RangeInEditor::Text(start..end))
                                                 })
                                             }),
-                                    definition_result.into_iter().map(HoverLink::Text).collect(),
+                                            definition_result
+                                                .into_iter()
+                                                .map(HoverLink::Text)
+                                                .collect(),
                                         )
-                            })
+                                    }),
-                        } else {
+                                    _ => None,
-                            None
-                        }
-                    } else {
-                        None
                                 }
                             }
+                            _ => None,
+                        },
+                    },
+                },
                 TriggerPoint::InlayHint(highlight, lsp_location, server_id) => Some((
                     Some(RangeInEditor::Inlay(highlight.clone())),
                     vec![HoverLink::InlayHint(lsp_location.clone(), *server_id)],
@@ -606,7 +616,8 @@ pub fn show_link_definition(
                     .as_ref()
                     .and_then(|(symbol_range, _)| symbol_range.clone());
 
-                if let Some((symbol_range, definitions)) = result {
+                match result {
+                    Some((symbol_range, definitions)) => {
                         hovered_link_state.links = definitions;
 
                         let underline_hovered_link = !hovered_link_state.links.is_empty()
@@ -639,14 +650,24 @@ pub fn show_link_definition(
 
                             match highlight_range {
                                 RangeInEditor::Text(text_range) => editor
-                                .highlight_text::<HoveredLinkState>(vec![text_range], style, cx),
+                                    .highlight_text::<HoveredLinkState>(
+                                        vec![text_range],
+                                        style,
+                                        cx,
+                                    ),
                                 RangeInEditor::Inlay(highlight) => editor
-                                .highlight_inlays::<HoveredLinkState>(vec![highlight], style, cx),
+                                    .highlight_inlays::<HoveredLinkState>(
+                                        vec![highlight],
+                                        style,
+                                        cx,
+                                    ),
                             }
                         }
-                } else {
+                    }
+                    _ => {
                         editor.hide_hovered_link(cx);
                     }
+                }
             })?;
 
             Ok::<_, anyhow::Error>(())

crates/editor/src/hover_popover.rs

@@ -289,7 +289,8 @@ fn show_hover(
                 // Find the entry with the most specific range
                 .min_by_key(|entry| entry.range.len());
 
-            let diagnostic_popover = if let Some(local_diagnostic) = local_diagnostic {
+            let diagnostic_popover = match local_diagnostic {
+                Some(local_diagnostic) => {
                     let text = match local_diagnostic.diagnostic.source {
                         Some(ref source) => {
                             format!("{source}: {}", local_diagnostic.diagnostic.message)
@@ -348,7 +349,9 @@ fn show_hover(
                             });
                             let markdown_style = MarkdownStyle {
                                 base_text_style,
-                            selection_background_color: { cx.theme().players().local().selection },
+                                selection_background_color: {
+                                    cx.theme().players().local().selection
+                                },
                                 link: TextStyleRefinement {
                                     underline: Some(gpui::UnderlineStyle {
                                         thickness: px(1.),
@@ -372,43 +375,48 @@ fn show_hover(
                         keyboard_grace: Rc::new(RefCell::new(ignore_timeout)),
                         anchor: Some(anchor),
                     })
-            } else {
+                }
-                None
+                _ => None,
             };
 
             this.update(cx, |this, _| {
                 this.hover_state.diagnostic_popover = diagnostic_popover;
             })?;
 
-            let invisible_char = if let Some(invisible) = snapshot
+            let invisible_char = match snapshot
                 .buffer_snapshot
                 .chars_at(anchor)
                 .next()
                 .filter(|&c| is_invisible(c))
             {
+                Some(invisible) => {
                     let after = snapshot.buffer_snapshot.anchor_after(
                         anchor.to_offset(&snapshot.buffer_snapshot) + invisible.len_utf8(),
                     );
                     Some((invisible, anchor..after))
-            } else if let Some(invisible) = snapshot
+                }
+                _ => {
+                    match snapshot
                         .buffer_snapshot
                         .reversed_chars_at(anchor)
                         .next()
                         .filter(|&c| is_invisible(c))
                     {
+                        Some(invisible) => {
                             let before = snapshot.buffer_snapshot.anchor_before(
                                 anchor.to_offset(&snapshot.buffer_snapshot) - invisible.len_utf8(),
                             );
 
                             Some((invisible, before..anchor))
-            } else {
+                        }
-                None
+                        _ => None,
+                    }
+                }
             };
 
-            let hovers_response = if let Some(hover_request) = hover_request {
+            let hovers_response = match hover_request {
-                hover_request.await
+                Some(hover_request) => hover_request.await,
-            } else {
+                _ => Vec::new(),
-                Vec::new()
             };
             let snapshot = this.update_in(cx, |this, window, cx| this.snapshot(window, cx))?;
             let mut hover_highlights = Vec::with_capacity(hovers_response.len());
@@ -543,11 +551,12 @@ async fn parse_blocks(
     language: Option<Arc<Language>>,
     cx: &mut AsyncWindowContext,
 ) -> Option<Entity<Markdown>> {
-    let fallback_language_name = if let Some(ref l) = language {
+    let fallback_language_name = match language {
+        Some(ref l) => {
             let l = Arc::clone(l);
             Some(l.lsp_id().clone())
-    } else {
+        }
-        None
+        _ => None,
     };
 
     let combined_text = blocks

crates/editor/src/indent_guides.rs

@@ -36,7 +36,8 @@ impl Editor {
         cx: &mut Context<Editor>,
     ) -> Option<Vec<IndentGuide>> {
         let show_indent_guides = self.should_show_indent_guides().unwrap_or_else(|| {
-            if let Some(buffer) = self.buffer().read(cx).as_singleton() {
+            match self.buffer().read(cx).as_singleton() {
+                Some(buffer) => {
                     language_settings(
                         buffer.read(cx).language().map(|l| l.name()),
                         buffer.read(cx).file(),
@@ -44,8 +45,8 @@ impl Editor {
                     )
                     .indent_guides
                     .enabled
-            } else {
+                }
-                true
+                _ => true,
             }
         });