debugger: Fix nits (#30632)

Release Notes:

- N/A

---------

Co-authored-by: Anthony Eid <hello@anthonyeid.me>

crates/debugger_ui/src/tests/inline_values.rs

@@ -1,7 +1,7 @@
 use std::{path::Path, sync::Arc};
 
 use dap::{Scope, StackFrame, Variable, requests::Variables};
-use editor::{Editor, EditorMode, MultiBuffer, actions::ToggleInlineValues};
+use editor::{Editor, EditorMode, MultiBuffer};
 use gpui::{BackgroundExecutor, TestAppContext, VisualTestContext};
 use language::{Language, LanguageConfig, LanguageMatcher, tree_sitter_python, tree_sitter_rust};
 use project::{FakeFs, Project};
@@ -239,11 +239,7 @@ fn main() {
     });
     cx.run_until_parked();
 
-    editor.update_in(cx, |editor, window, cx| {
-        if !editor.inline_values_enabled() {
-            editor.toggle_inline_values(&ToggleInlineValues, window, cx);
-        }
-    });
+    editor.update(cx, |editor, cx| editor.refresh_inline_values(cx));
 
     cx.run_until_parked();
 
@@ -1604,11 +1600,7 @@ def process_data(untyped_param, typed_param: int, another_typed: str):
         )
     });
 
-    editor.update_in(cx, |editor, window, cx| {
-        if !editor.inline_values_enabled() {
-            editor.toggle_inline_values(&ToggleInlineValues, window, cx);
-        }
-    });
+    editor.update(cx, |editor, cx| editor.refresh_inline_values(cx));
 
     client.on_request::<dap::requests::Threads, _>(move |_, _| {
         Ok(dap::ThreadsResponse {

crates/language/src/language_settings.rs

@@ -980,8 +980,8 @@ pub struct InlayHintSettings {
     pub enabled: bool,
     /// Global switch to toggle inline values on and off.
     ///
-    /// Default: false
-    #[serde(default)]
+    /// Default: true
+    #[serde(default = "default_true")]
     pub show_value_hints: bool,
     /// Whether type hints should be shown.
     ///

crates/project/src/debugger/dap_store.rs

@@ -577,6 +577,17 @@ impl DapStore {
         let snapshot = buffer_handle.read(cx).snapshot();
         let all_variables = session.read(cx).variables_by_stack_frame_id(stack_frame_id);
 
+        fn format_value(mut value: String) -> String {
+            const LIMIT: usize = 100;
+
+            if value.len() > LIMIT {
+                value.truncate(LIMIT);
+                value.push_str("...");
+            }
+
+            format!(": {}", value)
+        }
+
         cx.spawn(async move |_, cx| {
             let mut inlay_hints = Vec::with_capacity(inline_value_locations.len());
             for inline_value_location in inline_value_locations.iter() {
@@ -597,7 +608,7 @@ impl DapStore {
 
                         inlay_hints.push(InlayHint {
                             position,
-                            label: InlayHintLabel::String(format!(": {}", variable.value)),
+                            label: InlayHintLabel::String(format_value(variable.value.clone())),
                             kind: Some(InlayHintKind::Type),
                             padding_left: false,
                             padding_right: false,
@@ -620,7 +631,7 @@ impl DapStore {
                         if let Some(response) = eval_task.await.log_err() {
                             inlay_hints.push(InlayHint {
                                 position,
-                                label: InlayHintLabel::String(format!(": {}", response.result)),
+                                label: InlayHintLabel::String(format_value(response.result)),
                                 kind: Some(InlayHintKind::Type),
                                 padding_left: false,
                                 padding_right: false,