Debug console

crates/debugger_ui/Cargo.toml

@@ -13,9 +13,12 @@ anyhow.workspace = true
 dap.workspace = true
 editor.workspace = true
 futures.workspace = true
+fuzzy.workspace = true
 gpui.workspace = true
+language.workspace = true
 log.workspace = true
 menu.workspace = true
+parking_lot.workspace = true
 project.workspace = true
 serde.workspace = true
 settings.workspace = true

crates/debugger_ui/src/console.rs

@@ -1,39 +1,121 @@
-use editor::{Editor, EditorElement, EditorStyle};
-use gpui::{Render, TextStyle, View, ViewContext};
+use crate::variable_list::VariableList;
+use dap::client::DebugAdapterClientId;
+use editor::{CompletionProvider, Editor, EditorElement, EditorStyle};
+use fuzzy::StringMatchCandidate;
+use gpui::{Model, Render, Task, TextStyle, View, ViewContext, WeakView};
+use language::{Buffer, CodeLabel, LanguageServerId, ToOffsetUtf16};
+use menu::Confirm;
+use parking_lot::RwLock;
+use project::{dap_store::DapStore, Completion};
 use settings::Settings;
+use std::{collections::HashMap, sync::Arc};
 use theme::ThemeSettings;
 use ui::prelude::*;
 
 pub struct Console {
     console: View<Editor>,
     query_bar: View<Editor>,
+    dap_store: Model<DapStore>,
+    current_stack_frame_id: u64,
+    client_id: DebugAdapterClientId,
+    variable_list: View<VariableList>,
 }
 
 impl Console {
-    pub fn new(cx: &mut ViewContext<Self>) -> Self {
+    pub fn new(
+        client_id: &DebugAdapterClientId,
+        current_stack_frame_id: u64,
+        variable_list: View<VariableList>,
+        dap_store: Model<DapStore>,
+        cx: &mut ViewContext<Self>,
+    ) -> Self {
         let console = cx.new_view(|cx| {
             let mut editor = Editor::multi_line(cx);
             editor.move_to_end(&editor::actions::MoveToEnd, cx);
             editor.set_read_only(true);
             editor.set_show_gutter(false, cx);
+            editor.set_use_autoclose(false);
+            editor.set_show_wrap_guides(false, cx);
+            editor.set_show_indent_guides(false, cx);
             editor.set_show_inline_completions(Some(false), cx);
             editor
         });
 
-        let query_bar = cx.new_view(Editor::single_line);
+        let this = cx.view().downgrade();
+        let query_bar = cx.new_view(|cx| {
+            let mut editor = Editor::single_line(cx);
+            editor.set_placeholder_text("Evaluate an expression", cx);
+            editor.set_use_autoclose(false);
+            editor.set_show_gutter(false, cx);
+            editor.set_show_wrap_guides(false, cx);
+            editor.set_show_indent_guides(false, cx);
+            editor.set_completion_provider(Box::new(ConsoleQueryBarCompletionProvider(this)));
+
+            editor
+        });
+
+        Self {
+            console,
+            dap_store,
+            query_bar,
+            variable_list,
+            client_id: *client_id,
+            current_stack_frame_id,
+        }
+    }
+
+    pub fn update_current_stack_frame_id(
+        &mut self,
+        stack_frame_id: u64,
+        cx: &mut ViewContext<Self>,
+    ) {
+        self.current_stack_frame_id = stack_frame_id;
 
-        Self { console, query_bar }
+        cx.notify();
     }
 
     pub fn add_message(&mut self, message: &str, cx: &mut ViewContext<Self>) {
         self.console.update(cx, |console, cx| {
             console.set_read_only(false);
             console.move_to_end(&editor::actions::MoveToEnd, cx);
-            console.insert(format!("{}\n", message).as_str(), cx);
+            console.insert(format!("{}\n", message.trim_end()).as_str(), cx);
             console.set_read_only(true);
         });
+    }
 
-        cx.notify();
+    fn evaluate(&mut self, _: &Confirm, cx: &mut ViewContext<Self>) {
+        let expession = self.query_bar.update(cx, |editor, cx| {
+            let expession = editor.text(cx);
+
+            editor.clear(cx);
+
+            expession
+        });
+
+        let evaluate_task = self.dap_store.update(cx, |store, cx| {
+            store.evaluate(
+                &self.client_id,
+                self.current_stack_frame_id,
+                expession,
+                dap::EvaluateArgumentsContext::Variables,
+                cx,
+            )
+        });
+
+        cx.spawn(|this, mut cx| async move {
+            let response = evaluate_task.await?;
+
+            this.update(&mut cx, |console, cx| {
+                console.add_message(&response.result, cx);
+
+                console.variable_list.update(cx, |variable_list, cx| {
+                    variable_list
+                        .refetch_existing_variables(cx)
+                        .detach_and_log_err(cx);
+                })
+            })
+        })
+        .detach_and_log_err(cx);
     }
 
     fn render_console(&self, cx: &ViewContext<Self>) -> impl IntoElement {
@@ -46,9 +128,9 @@ impl Console {
             },
             font_family: settings.buffer_font.family.clone(),
             font_features: settings.buffer_font.features.clone(),
-            font_size: rems(0.875).into(),
+            font_size: settings.buffer_font_size.into(),
             font_weight: settings.buffer_font.weight,
-            line_height: relative(1.3),
+            line_height: relative(settings.buffer_line_height.value()),
             ..Default::default()
         };
 
@@ -71,10 +153,11 @@ impl Console {
             } else {
                 cx.theme().colors().text
             },
-            font_family: settings.buffer_font.family.clone(),
-            font_features: settings.buffer_font.features.clone(),
-            font_size: rems(0.875).into(),
-            font_weight: settings.buffer_font.weight,
+            font_family: settings.ui_font.family.clone(),
+            font_features: settings.ui_font.features.clone(),
+            font_fallbacks: settings.ui_font.fallbacks.clone(),
+            font_size: TextSize::Editor.rems(cx).into(),
+            font_weight: settings.ui_font.weight,
             line_height: relative(1.3),
             ..Default::default()
         };
@@ -94,6 +177,8 @@ impl Console {
 impl Render for Console {
     fn render(&mut self, cx: &mut ViewContext<Self>) -> impl IntoElement {
         v_flex()
+            .key_context("DebugConsole")
+            .on_action(cx.listener(Self::evaluate))
             .size_full()
             .child(self.render_console(cx))
             .child(
@@ -104,3 +189,183 @@ impl Render for Console {
             .border_2()
     }
 }
+
+struct ConsoleQueryBarCompletionProvider(WeakView<Console>);
+
+impl CompletionProvider for ConsoleQueryBarCompletionProvider {
+    fn completions(
+        &self,
+        buffer: &Model<Buffer>,
+        buffer_position: language::Anchor,
+        _trigger: editor::CompletionContext,
+        cx: &mut ViewContext<Editor>,
+    ) -> gpui::Task<gpui::Result<Vec<project::Completion>>> {
+        let Some(console) = self.0.upgrade() else {
+            return Task::ready(Ok(Vec::new()));
+        };
+
+        let support_completions = console.update(cx, |this, cx| {
+            this.dap_store
+                .read(cx)
+                .capabilities_by_id(&this.client_id)
+                .supports_completions_request
+                .unwrap_or_default()
+        });
+
+        if support_completions {
+            self.client_completions(&console, buffer, buffer_position, cx)
+        } else {
+            self.variable_list_completions(&console, buffer, buffer_position, cx)
+        }
+    }
+
+    fn resolve_completions(
+        &self,
+        _buffer: Model<Buffer>,
+        _completion_indices: Vec<usize>,
+        _completions: Arc<RwLock<Box<[Completion]>>>,
+        _cx: &mut ViewContext<Editor>,
+    ) -> gpui::Task<gpui::Result<bool>> {
+        Task::ready(Ok(false))
+    }
+
+    fn apply_additional_edits_for_completion(
+        &self,
+        _buffer: Model<Buffer>,
+        _completion: project::Completion,
+        _push_to_history: bool,
+        _cx: &mut ViewContext<Editor>,
+    ) -> gpui::Task<gpui::Result<Option<language::Transaction>>> {
+        Task::ready(Ok(None))
+    }
+
+    fn is_completion_trigger(
+        &self,
+        _buffer: &Model<Buffer>,
+        _position: language::Anchor,
+        _text: &str,
+        _trigger_in_words: bool,
+        _cx: &mut ViewContext<Editor>,
+    ) -> bool {
+        true
+    }
+}
+
+impl ConsoleQueryBarCompletionProvider {
+    fn variable_list_completions(
+        &self,
+        console: &View<Console>,
+        buffer: &Model<Buffer>,
+        buffer_position: language::Anchor,
+        cx: &mut ViewContext<Editor>,
+    ) -> gpui::Task<gpui::Result<Vec<project::Completion>>> {
+        let (variables, string_matches) = console.update(cx, |console, cx| {
+            let mut variables = HashMap::new();
+            let mut string_matches = Vec::new();
+
+            for variable in console.variable_list.read(cx).variables() {
+                if let Some(evaluate_name) = &variable.variable.evaluate_name {
+                    variables.insert(evaluate_name.clone(), variable.variable.value.clone());
+                    string_matches.push(StringMatchCandidate {
+                        id: 0,
+                        string: evaluate_name.clone(),
+                        char_bag: evaluate_name.chars().collect(),
+                    });
+                }
+
+                variables.insert(
+                    variable.variable.name.clone(),
+                    variable.variable.value.clone(),
+                );
+
+                string_matches.push(StringMatchCandidate {
+                    id: 0,
+                    string: variable.variable.name.clone(),
+                    char_bag: variable.variable.name.chars().collect(),
+                });
+            }
+
+            (variables, string_matches)
+        });
+
+        let query = buffer.read(cx).text();
+        let start_position = buffer.read(cx).anchor_before(0);
+
+        cx.spawn(|_, cx| async move {
+            let matches = fuzzy::match_strings(
+                &string_matches,
+                &query,
+                true,
+                10,
+                &Default::default(),
+                cx.background_executor().clone(),
+            )
+            .await;
+
+            Ok(matches
+                .iter()
+                .filter_map(|string_match| {
+                    let variable_value = variables.get(&string_match.string)?;
+
+                    Some(project::Completion {
+                        old_range: start_position..buffer_position,
+                        new_text: string_match.string.clone(),
+                        label: CodeLabel {
+                            filter_range: 0..string_match.string.len(),
+                            text: format!("{} {}", string_match.string.clone(), variable_value),
+                            runs: Vec::new(),
+                        },
+                        server_id: LanguageServerId(0), // TODO debugger: read from client
+                        documentation: None,
+                        lsp_completion: Default::default(),
+                        confirm: None,
+                    })
+                })
+                .collect())
+        })
+    }
+
+    fn client_completions(
+        &self,
+        console: &View<Console>,
+        buffer: &Model<Buffer>,
+        buffer_position: language::Anchor,
+        cx: &mut ViewContext<Editor>,
+    ) -> gpui::Task<gpui::Result<Vec<project::Completion>>> {
+        let text = buffer.read(cx).text();
+        let start_position = buffer.read(cx).anchor_before(0);
+        let snapshot = buffer.read(cx).snapshot();
+
+        let completion_task = console.update(cx, |console, cx| {
+            console.dap_store.update(cx, |store, cx| {
+                store.completions(
+                    &console.client_id,
+                    console.current_stack_frame_id,
+                    text,
+                    buffer_position.to_offset_utf16(&snapshot).0 as u64,
+                    cx,
+                )
+            })
+        });
+
+        cx.background_executor().spawn(async move {
+            Ok(completion_task
+                .await?
+                .iter()
+                .map(|completion| project::Completion {
+                    old_range: start_position..buffer_position,
+                    new_text: completion.text.clone().unwrap_or(completion.label.clone()),
+                    label: CodeLabel {
+                        filter_range: 0..completion.label.len(),
+                        text: completion.label.clone(),
+                        runs: Vec::new(),
+                    },
+                    server_id: LanguageServerId(0), // TODO debugger: read from client
+                    documentation: None,
+                    lsp_completion: Default::default(),
+                    confirm: None,
+                })
+                .collect())
+        })
+    }
+}