Misc nitpicks, changes too small / unrelated to be in other PRs (#32768)

Release Notes:

- N/A

crates/db/src/db.rs

@@ -74,7 +74,7 @@ pub async fn open_db<M: Migrator + 'static>(db_dir: &Path, scope: &str) -> Threa
 }
 
 async fn open_main_db<M: Migrator>(db_path: &Path) -> Option<ThreadSafeConnection> {
-    log::info!("Opening main db");
+    log::info!("Opening database {}", db_path.display());
     ThreadSafeConnection::builder::<M>(db_path.to_string_lossy().as_ref(), true)
         .with_db_initialization_query(DB_INITIALIZE_QUERY)
         .with_connection_initialize_query(CONNECTION_INITIALIZE_QUERY)
@@ -84,7 +84,7 @@ async fn open_main_db<M: Migrator>(db_path: &Path) -> Option<ThreadSafeConnectio
 }
 
 async fn open_fallback_db<M: Migrator>() -> ThreadSafeConnection {
-    log::info!("Opening fallback db");
+    log::warn!("Opening fallback in-memory database");
     ThreadSafeConnection::builder::<M>(FALLBACK_DB_NAME, false)
         .with_db_initialization_query(DB_INITIALIZE_QUERY)
         .with_connection_initialize_query(CONNECTION_INITIALIZE_QUERY)

crates/editor/src/editor.rs

@@ -2870,7 +2870,8 @@ impl Editor {
                             buffer.char_kind_before(start_offset, true) == Some(CharKind::Word)
                         } else {
                             // Snippet choices can be shown even when the cursor is in whitespace.
-                            // Dismissing the menu when actions like backspace
+                            // Dismissing the menu with actions like backspace is handled by
+                            // invalidation regions.
                             true
                         }
                     } else {
@@ -2936,22 +2937,22 @@ impl Editor {
                         let background_executor = cx.background_executor().clone();
                         let editor_id = cx.entity().entity_id().as_u64() as ItemId;
                         self.serialize_selections = cx.background_spawn(async move {
-                    background_executor.timer(SERIALIZATION_THROTTLE_TIME).await;
-                    let db_selections = selections
-                        .iter()
-                        .map(|selection| {
-                            (
-                                selection.start.to_offset(&snapshot),
-                                selection.end.to_offset(&snapshot),
-                            )
-                        })
-                        .collect();
+                            background_executor.timer(SERIALIZATION_THROTTLE_TIME).await;
+                            let db_selections = selections
+                                .iter()
+                                .map(|selection| {
+                                    (
+                                        selection.start.to_offset(&snapshot),
+                                        selection.end.to_offset(&snapshot),
+                                    )
+                                })
+                                .collect();
 
-                    DB.save_editor_selections(editor_id, workspace_id, db_selections)
-                        .await
-                        .with_context(|| format!("persisting editor selections for editor {editor_id}, workspace {workspace_id:?}"))
-                        .log_err();
-                });
+                            DB.save_editor_selections(editor_id, workspace_id, db_selections)
+                                .await
+                                .with_context(|| format!("persisting editor selections for editor {editor_id}, workspace {workspace_id:?}"))
+                                .log_err();
+                        });
                     }
                 }
             }

crates/editor/src/element.rs

@@ -7630,7 +7630,7 @@ impl Element for EditorElement {
     fn request_layout(
         &mut self,
         _: Option<&GlobalElementId>,
-        __inspector_id: Option<&gpui::InspectorElementId>,
+        _inspector_id: Option<&gpui::InspectorElementId>,
         window: &mut Window,
         cx: &mut App,
     ) -> (gpui::LayoutId, ()) {
@@ -8817,7 +8817,7 @@ impl Element for EditorElement {
     fn paint(
         &mut self,
         _: Option<&GlobalElementId>,
-        __inspector_id: Option<&gpui::InspectorElementId>,
+        _inspector_id: Option<&gpui::InspectorElementId>,
         bounds: Bounds<gpui::Pixels>,
         _: &mut Self::RequestLayoutState,
         layout: &mut Self::PrepaintState,

crates/editor/src/selections_collection.rs

@@ -659,6 +659,7 @@ impl<'a> MutableSelectionsCollection<'a> {
             .collect();
         self.select(selections);
     }
+
     pub fn reverse_selections(&mut self) {
         let map = &self.display_map();
         let mut new_selections: Vec<Selection<Point>> = Vec::new();

crates/extension_host/src/wasm_host.rs

@@ -377,6 +377,7 @@ impl extension::Extension for WasmExtension {
         })
         .await
     }
+
     async fn get_dap_binary(
         &self,
         dap_name: Arc<str>,

crates/gpui/src/gpui.rs

@@ -255,7 +255,7 @@ pub trait VisualContext: AppContext {
         update: impl FnOnce(&mut T, &mut Window, &mut Context<T>) -> R,
     ) -> Self::Result<R>;
 
-    /// Update a view with the given callback
+    /// Create a new entity, with access to `Window`.
     fn new_window_entity<T: 'static>(
         &mut self,
         build_entity: impl FnOnce(&mut Window, &mut Context<T>) -> T,

crates/util/src/util.rs

@@ -863,6 +863,7 @@ mod rng {
 }
 #[cfg(any(test, feature = "test-support"))]
 pub use rng::RandomCharIter;
+
 /// Get an embedded file as a string.
 pub fn asset_str<A: rust_embed::RustEmbed>(path: &str) -> Cow<'static, str> {
     match A::get(path).expect(path).data {

crates/zeta/src/zeta.rs

@@ -335,6 +335,7 @@ impl Zeta {
 
         self.events.push_back(event);
         if self.events.len() >= MAX_EVENT_COUNT {
+            // These are halved instead of popping to improve prompt caching.
             self.events.drain(..MAX_EVENT_COUNT / 2);
         }
     }