1use crate::{
2 assistant_settings::AssistantSettings, humanize_token_count, prompts::PromptBuilder,
3 AssistantPanel, AssistantPanelEvent, CharOperation, CycleNextInlineAssist,
4 CyclePreviousInlineAssist, LineDiff, LineOperation, ModelSelector, StreamingDiff,
5};
6use anyhow::{anyhow, Context as _, Result};
7use client::{telemetry::Telemetry, ErrorExt};
8use collections::{hash_map, HashMap, HashSet, VecDeque};
9use editor::{
10 actions::{MoveDown, MoveUp, SelectAll},
11 display_map::{
12 BlockContext, BlockDisposition, BlockProperties, BlockStyle, CustomBlockId, RenderBlock,
13 ToDisplayPoint,
14 },
15 Anchor, AnchorRangeExt, CodeActionProvider, Editor, EditorElement, EditorEvent, EditorMode,
16 EditorStyle, ExcerptId, ExcerptRange, GutterDimensions, MultiBuffer, MultiBufferSnapshot,
17 ToOffset as _, ToPoint,
18};
19use feature_flags::{FeatureFlagAppExt as _, ZedPro};
20use fs::Fs;
21use futures::{
22 channel::mpsc,
23 future::{BoxFuture, LocalBoxFuture},
24 join,
25 stream::{self, BoxStream},
26 SinkExt, Stream, StreamExt,
27};
28use gpui::{
29 anchored, deferred, point, AnyElement, AppContext, ClickEvent, EventEmitter, FocusHandle,
30 FocusableView, FontWeight, Global, HighlightStyle, Model, ModelContext, Subscription, Task,
31 TextStyle, UpdateGlobal, View, ViewContext, WeakView, WindowContext,
32};
33use language::{Buffer, IndentKind, Point, Selection, TransactionId};
34use language_model::{
35 LanguageModel, LanguageModelRegistry, LanguageModelRequest, LanguageModelRequestMessage, Role,
36};
37use multi_buffer::MultiBufferRow;
38use parking_lot::Mutex;
39use project::{CodeAction, ProjectTransaction};
40use rope::Rope;
41use settings::{Settings, SettingsStore};
42use smol::future::FutureExt;
43use std::{
44 cmp,
45 future::{self, Future},
46 iter, mem,
47 ops::{Range, RangeInclusive},
48 pin::Pin,
49 sync::Arc,
50 task::{self, Poll},
51 time::{Duration, Instant},
52};
53use terminal_view::terminal_panel::TerminalPanel;
54use text::{OffsetRangeExt, ToPoint as _};
55use theme::ThemeSettings;
56use ui::{prelude::*, CheckboxWithLabel, IconButtonShape, Popover, Tooltip};
57use util::{RangeExt, ResultExt};
58use workspace::{notifications::NotificationId, ItemHandle, Toast, Workspace};
59
60pub fn init(
61 fs: Arc<dyn Fs>,
62 prompt_builder: Arc<PromptBuilder>,
63 telemetry: Arc<Telemetry>,
64 cx: &mut AppContext,
65) {
66 cx.set_global(InlineAssistant::new(fs, prompt_builder, telemetry));
67 cx.observe_new_views(|_, cx| {
68 let workspace = cx.view().clone();
69 InlineAssistant::update_global(cx, |inline_assistant, cx| {
70 inline_assistant.register_workspace(&workspace, cx)
71 })
72 })
73 .detach();
74}
75
76const PROMPT_HISTORY_MAX_LEN: usize = 20;
77
78pub struct InlineAssistant {
79 next_assist_id: InlineAssistId,
80 next_assist_group_id: InlineAssistGroupId,
81 assists: HashMap<InlineAssistId, InlineAssist>,
82 assists_by_editor: HashMap<WeakView<Editor>, EditorInlineAssists>,
83 assist_groups: HashMap<InlineAssistGroupId, InlineAssistGroup>,
84 assist_observations: HashMap<
85 InlineAssistId,
86 (
87 async_watch::Sender<AssistStatus>,
88 async_watch::Receiver<AssistStatus>,
89 ),
90 >,
91 confirmed_assists: HashMap<InlineAssistId, Model<CodegenAlternative>>,
92 prompt_history: VecDeque<String>,
93 prompt_builder: Arc<PromptBuilder>,
94 telemetry: Option<Arc<Telemetry>>,
95 fs: Arc<dyn Fs>,
96}
97
98pub enum AssistStatus {
99 Idle,
100 Started,
101 Stopped,
102 Finished,
103}
104
105impl AssistStatus {
106 pub fn is_done(&self) -> bool {
107 matches!(self, Self::Stopped | Self::Finished)
108 }
109}
110
111impl Global for InlineAssistant {}
112
113impl InlineAssistant {
114 pub fn new(
115 fs: Arc<dyn Fs>,
116 prompt_builder: Arc<PromptBuilder>,
117 telemetry: Arc<Telemetry>,
118 ) -> Self {
119 Self {
120 next_assist_id: InlineAssistId::default(),
121 next_assist_group_id: InlineAssistGroupId::default(),
122 assists: HashMap::default(),
123 assists_by_editor: HashMap::default(),
124 assist_groups: HashMap::default(),
125 assist_observations: HashMap::default(),
126 confirmed_assists: HashMap::default(),
127 prompt_history: VecDeque::default(),
128 prompt_builder,
129 telemetry: Some(telemetry),
130 fs,
131 }
132 }
133
134 pub fn register_workspace(&mut self, workspace: &View<Workspace>, cx: &mut WindowContext) {
135 cx.subscribe(workspace, |workspace, event, cx| {
136 Self::update_global(cx, |this, cx| {
137 this.handle_workspace_event(workspace, event, cx)
138 });
139 })
140 .detach();
141
142 let workspace = workspace.downgrade();
143 cx.observe_global::<SettingsStore>(move |cx| {
144 let Some(workspace) = workspace.upgrade() else {
145 return;
146 };
147 let Some(terminal_panel) = workspace.read(cx).panel::<TerminalPanel>(cx) else {
148 return;
149 };
150 let enabled = AssistantSettings::get_global(cx).enabled;
151 terminal_panel.update(cx, |terminal_panel, cx| {
152 terminal_panel.asssistant_enabled(enabled, cx)
153 });
154 })
155 .detach();
156 }
157
158 fn handle_workspace_event(
159 &mut self,
160 workspace: View<Workspace>,
161 event: &workspace::Event,
162 cx: &mut WindowContext,
163 ) {
164 match event {
165 workspace::Event::UserSavedItem { item, .. } => {
166 // When the user manually saves an editor, automatically accepts all finished transformations.
167 if let Some(editor) = item.upgrade().and_then(|item| item.act_as::<Editor>(cx)) {
168 if let Some(editor_assists) = self.assists_by_editor.get(&editor.downgrade()) {
169 for assist_id in editor_assists.assist_ids.clone() {
170 let assist = &self.assists[&assist_id];
171 if let CodegenStatus::Done = assist.codegen.read(cx).status(cx) {
172 self.finish_assist(assist_id, false, cx)
173 }
174 }
175 }
176 }
177 }
178 workspace::Event::ItemAdded { item } => {
179 self.register_workspace_item(&workspace, item.as_ref(), cx);
180 }
181 _ => (),
182 }
183 }
184
185 fn register_workspace_item(
186 &mut self,
187 workspace: &View<Workspace>,
188 item: &dyn ItemHandle,
189 cx: &mut WindowContext,
190 ) {
191 if let Some(editor) = item.act_as::<Editor>(cx) {
192 editor.update(cx, |editor, cx| {
193 editor.push_code_action_provider(
194 Arc::new(AssistantCodeActionProvider {
195 editor: cx.view().downgrade(),
196 workspace: workspace.downgrade(),
197 }),
198 cx,
199 );
200 });
201 }
202 }
203
204 pub fn assist(
205 &mut self,
206 editor: &View<Editor>,
207 workspace: Option<WeakView<Workspace>>,
208 assistant_panel: Option<&View<AssistantPanel>>,
209 initial_prompt: Option<String>,
210 cx: &mut WindowContext,
211 ) {
212 if let Some(telemetry) = self.telemetry.as_ref() {
213 if let Some(model) = LanguageModelRegistry::read_global(cx).active_model() {
214 telemetry.report_assistant_event(
215 None,
216 telemetry_events::AssistantKind::Inline,
217 telemetry_events::AssistantPhase::Invoked,
218 model.telemetry_id(),
219 None,
220 None,
221 );
222 }
223 }
224 let snapshot = editor.read(cx).buffer().read(cx).snapshot(cx);
225
226 let mut selections = Vec::<Selection<Point>>::new();
227 let mut newest_selection = None;
228 for mut selection in editor.read(cx).selections.all::<Point>(cx) {
229 if selection.end > selection.start {
230 selection.start.column = 0;
231 // If the selection ends at the start of the line, we don't want to include it.
232 if selection.end.column == 0 {
233 selection.end.row -= 1;
234 }
235 selection.end.column = snapshot.line_len(MultiBufferRow(selection.end.row));
236 }
237
238 if let Some(prev_selection) = selections.last_mut() {
239 if selection.start <= prev_selection.end {
240 prev_selection.end = selection.end;
241 continue;
242 }
243 }
244
245 let latest_selection = newest_selection.get_or_insert_with(|| selection.clone());
246 if selection.id > latest_selection.id {
247 *latest_selection = selection.clone();
248 }
249 selections.push(selection);
250 }
251 let newest_selection = newest_selection.unwrap();
252
253 let mut codegen_ranges = Vec::new();
254 for (excerpt_id, buffer, buffer_range) in
255 snapshot.excerpts_in_ranges(selections.iter().map(|selection| {
256 snapshot.anchor_before(selection.start)..snapshot.anchor_after(selection.end)
257 }))
258 {
259 let start = Anchor {
260 buffer_id: Some(buffer.remote_id()),
261 excerpt_id,
262 text_anchor: buffer.anchor_before(buffer_range.start),
263 };
264 let end = Anchor {
265 buffer_id: Some(buffer.remote_id()),
266 excerpt_id,
267 text_anchor: buffer.anchor_after(buffer_range.end),
268 };
269 codegen_ranges.push(start..end);
270 }
271
272 let assist_group_id = self.next_assist_group_id.post_inc();
273 let prompt_buffer =
274 cx.new_model(|cx| Buffer::local(initial_prompt.unwrap_or_default(), cx));
275 let prompt_buffer = cx.new_model(|cx| MultiBuffer::singleton(prompt_buffer, cx));
276
277 let mut assists = Vec::new();
278 let mut assist_to_focus = None;
279 for range in codegen_ranges {
280 let assist_id = self.next_assist_id.post_inc();
281 let codegen = cx.new_model(|cx| {
282 Codegen::new(
283 editor.read(cx).buffer().clone(),
284 range.clone(),
285 None,
286 self.telemetry.clone(),
287 self.prompt_builder.clone(),
288 cx,
289 )
290 });
291
292 let gutter_dimensions = Arc::new(Mutex::new(GutterDimensions::default()));
293 let prompt_editor = cx.new_view(|cx| {
294 PromptEditor::new(
295 assist_id,
296 gutter_dimensions.clone(),
297 self.prompt_history.clone(),
298 prompt_buffer.clone(),
299 codegen.clone(),
300 editor,
301 assistant_panel,
302 workspace.clone(),
303 self.fs.clone(),
304 cx,
305 )
306 });
307
308 if assist_to_focus.is_none() {
309 let focus_assist = if newest_selection.reversed {
310 range.start.to_point(&snapshot) == newest_selection.start
311 } else {
312 range.end.to_point(&snapshot) == newest_selection.end
313 };
314 if focus_assist {
315 assist_to_focus = Some(assist_id);
316 }
317 }
318
319 let [prompt_block_id, end_block_id] =
320 self.insert_assist_blocks(editor, &range, &prompt_editor, cx);
321
322 assists.push((
323 assist_id,
324 range,
325 prompt_editor,
326 prompt_block_id,
327 end_block_id,
328 ));
329 }
330
331 let editor_assists = self
332 .assists_by_editor
333 .entry(editor.downgrade())
334 .or_insert_with(|| EditorInlineAssists::new(&editor, cx));
335 let mut assist_group = InlineAssistGroup::new();
336 for (assist_id, range, prompt_editor, prompt_block_id, end_block_id) in assists {
337 self.assists.insert(
338 assist_id,
339 InlineAssist::new(
340 assist_id,
341 assist_group_id,
342 assistant_panel.is_some(),
343 editor,
344 &prompt_editor,
345 prompt_block_id,
346 end_block_id,
347 range,
348 prompt_editor.read(cx).codegen.clone(),
349 workspace.clone(),
350 cx,
351 ),
352 );
353 assist_group.assist_ids.push(assist_id);
354 editor_assists.assist_ids.push(assist_id);
355 }
356 self.assist_groups.insert(assist_group_id, assist_group);
357
358 if let Some(assist_id) = assist_to_focus {
359 self.focus_assist(assist_id, cx);
360 }
361 }
362
363 #[allow(clippy::too_many_arguments)]
364 pub fn suggest_assist(
365 &mut self,
366 editor: &View<Editor>,
367 mut range: Range<Anchor>,
368 initial_prompt: String,
369 initial_transaction_id: Option<TransactionId>,
370 focus: bool,
371 workspace: Option<WeakView<Workspace>>,
372 assistant_panel: Option<&View<AssistantPanel>>,
373 cx: &mut WindowContext,
374 ) -> InlineAssistId {
375 let assist_group_id = self.next_assist_group_id.post_inc();
376 let prompt_buffer = cx.new_model(|cx| Buffer::local(&initial_prompt, cx));
377 let prompt_buffer = cx.new_model(|cx| MultiBuffer::singleton(prompt_buffer, cx));
378
379 let assist_id = self.next_assist_id.post_inc();
380
381 let buffer = editor.read(cx).buffer().clone();
382 {
383 let snapshot = buffer.read(cx).read(cx);
384 range.start = range.start.bias_left(&snapshot);
385 range.end = range.end.bias_right(&snapshot);
386 }
387
388 let codegen = cx.new_model(|cx| {
389 Codegen::new(
390 editor.read(cx).buffer().clone(),
391 range.clone(),
392 initial_transaction_id,
393 self.telemetry.clone(),
394 self.prompt_builder.clone(),
395 cx,
396 )
397 });
398
399 let gutter_dimensions = Arc::new(Mutex::new(GutterDimensions::default()));
400 let prompt_editor = cx.new_view(|cx| {
401 PromptEditor::new(
402 assist_id,
403 gutter_dimensions.clone(),
404 self.prompt_history.clone(),
405 prompt_buffer.clone(),
406 codegen.clone(),
407 editor,
408 assistant_panel,
409 workspace.clone(),
410 self.fs.clone(),
411 cx,
412 )
413 });
414
415 let [prompt_block_id, end_block_id] =
416 self.insert_assist_blocks(editor, &range, &prompt_editor, cx);
417
418 let editor_assists = self
419 .assists_by_editor
420 .entry(editor.downgrade())
421 .or_insert_with(|| EditorInlineAssists::new(&editor, cx));
422
423 let mut assist_group = InlineAssistGroup::new();
424 self.assists.insert(
425 assist_id,
426 InlineAssist::new(
427 assist_id,
428 assist_group_id,
429 assistant_panel.is_some(),
430 editor,
431 &prompt_editor,
432 prompt_block_id,
433 end_block_id,
434 range,
435 prompt_editor.read(cx).codegen.clone(),
436 workspace.clone(),
437 cx,
438 ),
439 );
440 assist_group.assist_ids.push(assist_id);
441 editor_assists.assist_ids.push(assist_id);
442 self.assist_groups.insert(assist_group_id, assist_group);
443
444 if focus {
445 self.focus_assist(assist_id, cx);
446 }
447
448 assist_id
449 }
450
451 fn insert_assist_blocks(
452 &self,
453 editor: &View<Editor>,
454 range: &Range<Anchor>,
455 prompt_editor: &View<PromptEditor>,
456 cx: &mut WindowContext,
457 ) -> [CustomBlockId; 2] {
458 let prompt_editor_height = prompt_editor.update(cx, |prompt_editor, cx| {
459 prompt_editor
460 .editor
461 .update(cx, |editor, cx| editor.max_point(cx).row().0 + 1 + 2)
462 });
463 let assist_blocks = vec![
464 BlockProperties {
465 style: BlockStyle::Sticky,
466 position: range.start,
467 height: prompt_editor_height,
468 render: build_assist_editor_renderer(prompt_editor),
469 disposition: BlockDisposition::Above,
470 priority: 0,
471 },
472 BlockProperties {
473 style: BlockStyle::Sticky,
474 position: range.end,
475 height: 0,
476 render: Box::new(|cx| {
477 v_flex()
478 .h_full()
479 .w_full()
480 .border_t_1()
481 .border_color(cx.theme().status().info_border)
482 .into_any_element()
483 }),
484 disposition: BlockDisposition::Below,
485 priority: 0,
486 },
487 ];
488
489 editor.update(cx, |editor, cx| {
490 let block_ids = editor.insert_blocks(assist_blocks, None, cx);
491 [block_ids[0], block_ids[1]]
492 })
493 }
494
495 fn handle_prompt_editor_focus_in(&mut self, assist_id: InlineAssistId, cx: &mut WindowContext) {
496 let assist = &self.assists[&assist_id];
497 let Some(decorations) = assist.decorations.as_ref() else {
498 return;
499 };
500 let assist_group = self.assist_groups.get_mut(&assist.group_id).unwrap();
501 let editor_assists = self.assists_by_editor.get_mut(&assist.editor).unwrap();
502
503 assist_group.active_assist_id = Some(assist_id);
504 if assist_group.linked {
505 for assist_id in &assist_group.assist_ids {
506 if let Some(decorations) = self.assists[assist_id].decorations.as_ref() {
507 decorations.prompt_editor.update(cx, |prompt_editor, cx| {
508 prompt_editor.set_show_cursor_when_unfocused(true, cx)
509 });
510 }
511 }
512 }
513
514 assist
515 .editor
516 .update(cx, |editor, cx| {
517 let scroll_top = editor.scroll_position(cx).y;
518 let scroll_bottom = scroll_top + editor.visible_line_count().unwrap_or(0.);
519 let prompt_row = editor
520 .row_for_block(decorations.prompt_block_id, cx)
521 .unwrap()
522 .0 as f32;
523
524 if (scroll_top..scroll_bottom).contains(&prompt_row) {
525 editor_assists.scroll_lock = Some(InlineAssistScrollLock {
526 assist_id,
527 distance_from_top: prompt_row - scroll_top,
528 });
529 } else {
530 editor_assists.scroll_lock = None;
531 }
532 })
533 .ok();
534 }
535
536 fn handle_prompt_editor_focus_out(
537 &mut self,
538 assist_id: InlineAssistId,
539 cx: &mut WindowContext,
540 ) {
541 let assist = &self.assists[&assist_id];
542 let assist_group = self.assist_groups.get_mut(&assist.group_id).unwrap();
543 if assist_group.active_assist_id == Some(assist_id) {
544 assist_group.active_assist_id = None;
545 if assist_group.linked {
546 for assist_id in &assist_group.assist_ids {
547 if let Some(decorations) = self.assists[assist_id].decorations.as_ref() {
548 decorations.prompt_editor.update(cx, |prompt_editor, cx| {
549 prompt_editor.set_show_cursor_when_unfocused(false, cx)
550 });
551 }
552 }
553 }
554 }
555 }
556
557 fn handle_prompt_editor_event(
558 &mut self,
559 prompt_editor: View<PromptEditor>,
560 event: &PromptEditorEvent,
561 cx: &mut WindowContext,
562 ) {
563 let assist_id = prompt_editor.read(cx).id;
564 match event {
565 PromptEditorEvent::StartRequested => {
566 self.start_assist(assist_id, cx);
567 }
568 PromptEditorEvent::StopRequested => {
569 self.stop_assist(assist_id, cx);
570 }
571 PromptEditorEvent::ConfirmRequested => {
572 self.finish_assist(assist_id, false, cx);
573 }
574 PromptEditorEvent::CancelRequested => {
575 self.finish_assist(assist_id, true, cx);
576 }
577 PromptEditorEvent::DismissRequested => {
578 self.dismiss_assist(assist_id, cx);
579 }
580 }
581 }
582
583 fn handle_editor_newline(&mut self, editor: View<Editor>, cx: &mut WindowContext) {
584 let Some(editor_assists) = self.assists_by_editor.get(&editor.downgrade()) else {
585 return;
586 };
587
588 let editor = editor.read(cx);
589 if editor.selections.count() == 1 {
590 let selection = editor.selections.newest::<usize>(cx);
591 let buffer = editor.buffer().read(cx).snapshot(cx);
592 for assist_id in &editor_assists.assist_ids {
593 let assist = &self.assists[assist_id];
594 let assist_range = assist.range.to_offset(&buffer);
595 if assist_range.contains(&selection.start) && assist_range.contains(&selection.end)
596 {
597 if matches!(assist.codegen.read(cx).status(cx), CodegenStatus::Pending) {
598 self.dismiss_assist(*assist_id, cx);
599 } else {
600 self.finish_assist(*assist_id, false, cx);
601 }
602
603 return;
604 }
605 }
606 }
607
608 cx.propagate();
609 }
610
611 fn handle_editor_cancel(&mut self, editor: View<Editor>, cx: &mut WindowContext) {
612 let Some(editor_assists) = self.assists_by_editor.get(&editor.downgrade()) else {
613 return;
614 };
615
616 let editor = editor.read(cx);
617 if editor.selections.count() == 1 {
618 let selection = editor.selections.newest::<usize>(cx);
619 let buffer = editor.buffer().read(cx).snapshot(cx);
620 let mut closest_assist_fallback = None;
621 for assist_id in &editor_assists.assist_ids {
622 let assist = &self.assists[assist_id];
623 let assist_range = assist.range.to_offset(&buffer);
624 if assist.decorations.is_some() {
625 if assist_range.contains(&selection.start)
626 && assist_range.contains(&selection.end)
627 {
628 self.focus_assist(*assist_id, cx);
629 return;
630 } else {
631 let distance_from_selection = assist_range
632 .start
633 .abs_diff(selection.start)
634 .min(assist_range.start.abs_diff(selection.end))
635 + assist_range
636 .end
637 .abs_diff(selection.start)
638 .min(assist_range.end.abs_diff(selection.end));
639 match closest_assist_fallback {
640 Some((_, old_distance)) => {
641 if distance_from_selection < old_distance {
642 closest_assist_fallback =
643 Some((assist_id, distance_from_selection));
644 }
645 }
646 None => {
647 closest_assist_fallback = Some((assist_id, distance_from_selection))
648 }
649 }
650 }
651 }
652 }
653
654 if let Some((&assist_id, _)) = closest_assist_fallback {
655 self.focus_assist(assist_id, cx);
656 }
657 }
658
659 cx.propagate();
660 }
661
662 fn handle_editor_release(&mut self, editor: WeakView<Editor>, cx: &mut WindowContext) {
663 if let Some(editor_assists) = self.assists_by_editor.get_mut(&editor) {
664 for assist_id in editor_assists.assist_ids.clone() {
665 self.finish_assist(assist_id, true, cx);
666 }
667 }
668 }
669
670 fn handle_editor_change(&mut self, editor: View<Editor>, cx: &mut WindowContext) {
671 let Some(editor_assists) = self.assists_by_editor.get(&editor.downgrade()) else {
672 return;
673 };
674 let Some(scroll_lock) = editor_assists.scroll_lock.as_ref() else {
675 return;
676 };
677 let assist = &self.assists[&scroll_lock.assist_id];
678 let Some(decorations) = assist.decorations.as_ref() else {
679 return;
680 };
681
682 editor.update(cx, |editor, cx| {
683 let scroll_position = editor.scroll_position(cx);
684 let target_scroll_top = editor
685 .row_for_block(decorations.prompt_block_id, cx)
686 .unwrap()
687 .0 as f32
688 - scroll_lock.distance_from_top;
689 if target_scroll_top != scroll_position.y {
690 editor.set_scroll_position(point(scroll_position.x, target_scroll_top), cx);
691 }
692 });
693 }
694
695 fn handle_editor_event(
696 &mut self,
697 editor: View<Editor>,
698 event: &EditorEvent,
699 cx: &mut WindowContext,
700 ) {
701 let Some(editor_assists) = self.assists_by_editor.get_mut(&editor.downgrade()) else {
702 return;
703 };
704
705 match event {
706 EditorEvent::Edited { transaction_id } => {
707 let buffer = editor.read(cx).buffer().read(cx);
708 let edited_ranges =
709 buffer.edited_ranges_for_transaction::<usize>(*transaction_id, cx);
710 let snapshot = buffer.snapshot(cx);
711
712 for assist_id in editor_assists.assist_ids.clone() {
713 let assist = &self.assists[&assist_id];
714 if matches!(
715 assist.codegen.read(cx).status(cx),
716 CodegenStatus::Error(_) | CodegenStatus::Done
717 ) {
718 let assist_range = assist.range.to_offset(&snapshot);
719 if edited_ranges
720 .iter()
721 .any(|range| range.overlaps(&assist_range))
722 {
723 self.finish_assist(assist_id, false, cx);
724 }
725 }
726 }
727 }
728 EditorEvent::ScrollPositionChanged { .. } => {
729 if let Some(scroll_lock) = editor_assists.scroll_lock.as_ref() {
730 let assist = &self.assists[&scroll_lock.assist_id];
731 if let Some(decorations) = assist.decorations.as_ref() {
732 let distance_from_top = editor.update(cx, |editor, cx| {
733 let scroll_top = editor.scroll_position(cx).y;
734 let prompt_row = editor
735 .row_for_block(decorations.prompt_block_id, cx)
736 .unwrap()
737 .0 as f32;
738 prompt_row - scroll_top
739 });
740
741 if distance_from_top != scroll_lock.distance_from_top {
742 editor_assists.scroll_lock = None;
743 }
744 }
745 }
746 }
747 EditorEvent::SelectionsChanged { .. } => {
748 for assist_id in editor_assists.assist_ids.clone() {
749 let assist = &self.assists[&assist_id];
750 if let Some(decorations) = assist.decorations.as_ref() {
751 if decorations.prompt_editor.focus_handle(cx).is_focused(cx) {
752 return;
753 }
754 }
755 }
756
757 editor_assists.scroll_lock = None;
758 }
759 _ => {}
760 }
761 }
762
763 pub fn finish_assist(&mut self, assist_id: InlineAssistId, undo: bool, cx: &mut WindowContext) {
764 if let Some(telemetry) = self.telemetry.as_ref() {
765 if let Some(model) = LanguageModelRegistry::read_global(cx).active_model() {
766 telemetry.report_assistant_event(
767 None,
768 telemetry_events::AssistantKind::Inline,
769 if undo {
770 telemetry_events::AssistantPhase::Rejected
771 } else {
772 telemetry_events::AssistantPhase::Accepted
773 },
774 model.telemetry_id(),
775 None,
776 None,
777 );
778 }
779 }
780 if let Some(assist) = self.assists.get(&assist_id) {
781 let assist_group_id = assist.group_id;
782 if self.assist_groups[&assist_group_id].linked {
783 for assist_id in self.unlink_assist_group(assist_group_id, cx) {
784 self.finish_assist(assist_id, undo, cx);
785 }
786 return;
787 }
788 }
789
790 self.dismiss_assist(assist_id, cx);
791
792 if let Some(assist) = self.assists.remove(&assist_id) {
793 if let hash_map::Entry::Occupied(mut entry) = self.assist_groups.entry(assist.group_id)
794 {
795 entry.get_mut().assist_ids.retain(|id| *id != assist_id);
796 if entry.get().assist_ids.is_empty() {
797 entry.remove();
798 }
799 }
800
801 if let hash_map::Entry::Occupied(mut entry) =
802 self.assists_by_editor.entry(assist.editor.clone())
803 {
804 entry.get_mut().assist_ids.retain(|id| *id != assist_id);
805 if entry.get().assist_ids.is_empty() {
806 entry.remove();
807 if let Some(editor) = assist.editor.upgrade() {
808 self.update_editor_highlights(&editor, cx);
809 }
810 } else {
811 entry.get().highlight_updates.send(()).ok();
812 }
813 }
814
815 if undo {
816 assist.codegen.update(cx, |codegen, cx| codegen.undo(cx));
817 } else {
818 let confirmed_alternative = assist.codegen.read(cx).active_alternative().clone();
819 self.confirmed_assists
820 .insert(assist_id, confirmed_alternative);
821 }
822 }
823
824 // Remove the assist from the status updates map
825 self.assist_observations.remove(&assist_id);
826 }
827
828 pub fn undo_assist(&mut self, assist_id: InlineAssistId, cx: &mut WindowContext) -> bool {
829 let Some(codegen) = self.confirmed_assists.remove(&assist_id) else {
830 return false;
831 };
832 codegen.update(cx, |this, cx| this.undo(cx));
833 true
834 }
835
836 fn dismiss_assist(&mut self, assist_id: InlineAssistId, cx: &mut WindowContext) -> bool {
837 let Some(assist) = self.assists.get_mut(&assist_id) else {
838 return false;
839 };
840 let Some(editor) = assist.editor.upgrade() else {
841 return false;
842 };
843 let Some(decorations) = assist.decorations.take() else {
844 return false;
845 };
846
847 editor.update(cx, |editor, cx| {
848 let mut to_remove = decorations.removed_line_block_ids;
849 to_remove.insert(decorations.prompt_block_id);
850 to_remove.insert(decorations.end_block_id);
851 editor.remove_blocks(to_remove, None, cx);
852 });
853
854 if decorations
855 .prompt_editor
856 .focus_handle(cx)
857 .contains_focused(cx)
858 {
859 self.focus_next_assist(assist_id, cx);
860 }
861
862 if let Some(editor_assists) = self.assists_by_editor.get_mut(&editor.downgrade()) {
863 if editor_assists
864 .scroll_lock
865 .as_ref()
866 .map_or(false, |lock| lock.assist_id == assist_id)
867 {
868 editor_assists.scroll_lock = None;
869 }
870 editor_assists.highlight_updates.send(()).ok();
871 }
872
873 true
874 }
875
876 fn focus_next_assist(&mut self, assist_id: InlineAssistId, cx: &mut WindowContext) {
877 let Some(assist) = self.assists.get(&assist_id) else {
878 return;
879 };
880
881 let assist_group = &self.assist_groups[&assist.group_id];
882 let assist_ix = assist_group
883 .assist_ids
884 .iter()
885 .position(|id| *id == assist_id)
886 .unwrap();
887 let assist_ids = assist_group
888 .assist_ids
889 .iter()
890 .skip(assist_ix + 1)
891 .chain(assist_group.assist_ids.iter().take(assist_ix));
892
893 for assist_id in assist_ids {
894 let assist = &self.assists[assist_id];
895 if assist.decorations.is_some() {
896 self.focus_assist(*assist_id, cx);
897 return;
898 }
899 }
900
901 assist.editor.update(cx, |editor, cx| editor.focus(cx)).ok();
902 }
903
904 fn focus_assist(&mut self, assist_id: InlineAssistId, cx: &mut WindowContext) {
905 let Some(assist) = self.assists.get(&assist_id) else {
906 return;
907 };
908
909 if let Some(decorations) = assist.decorations.as_ref() {
910 decorations.prompt_editor.update(cx, |prompt_editor, cx| {
911 prompt_editor.editor.update(cx, |editor, cx| {
912 editor.focus(cx);
913 editor.select_all(&SelectAll, cx);
914 })
915 });
916 }
917
918 self.scroll_to_assist(assist_id, cx);
919 }
920
921 pub fn scroll_to_assist(&mut self, assist_id: InlineAssistId, cx: &mut WindowContext) {
922 let Some(assist) = self.assists.get(&assist_id) else {
923 return;
924 };
925 let Some(editor) = assist.editor.upgrade() else {
926 return;
927 };
928
929 let position = assist.range.start;
930 editor.update(cx, |editor, cx| {
931 editor.change_selections(None, cx, |selections| {
932 selections.select_anchor_ranges([position..position])
933 });
934
935 let mut scroll_target_top;
936 let mut scroll_target_bottom;
937 if let Some(decorations) = assist.decorations.as_ref() {
938 scroll_target_top = editor
939 .row_for_block(decorations.prompt_block_id, cx)
940 .unwrap()
941 .0 as f32;
942 scroll_target_bottom = editor
943 .row_for_block(decorations.end_block_id, cx)
944 .unwrap()
945 .0 as f32;
946 } else {
947 let snapshot = editor.snapshot(cx);
948 let start_row = assist
949 .range
950 .start
951 .to_display_point(&snapshot.display_snapshot)
952 .row();
953 scroll_target_top = start_row.0 as f32;
954 scroll_target_bottom = scroll_target_top + 1.;
955 }
956 scroll_target_top -= editor.vertical_scroll_margin() as f32;
957 scroll_target_bottom += editor.vertical_scroll_margin() as f32;
958
959 let height_in_lines = editor.visible_line_count().unwrap_or(0.);
960 let scroll_top = editor.scroll_position(cx).y;
961 let scroll_bottom = scroll_top + height_in_lines;
962
963 if scroll_target_top < scroll_top {
964 editor.set_scroll_position(point(0., scroll_target_top), cx);
965 } else if scroll_target_bottom > scroll_bottom {
966 if (scroll_target_bottom - scroll_target_top) <= height_in_lines {
967 editor
968 .set_scroll_position(point(0., scroll_target_bottom - height_in_lines), cx);
969 } else {
970 editor.set_scroll_position(point(0., scroll_target_top), cx);
971 }
972 }
973 });
974 }
975
976 fn unlink_assist_group(
977 &mut self,
978 assist_group_id: InlineAssistGroupId,
979 cx: &mut WindowContext,
980 ) -> Vec<InlineAssistId> {
981 let assist_group = self.assist_groups.get_mut(&assist_group_id).unwrap();
982 assist_group.linked = false;
983 for assist_id in &assist_group.assist_ids {
984 let assist = self.assists.get_mut(assist_id).unwrap();
985 if let Some(editor_decorations) = assist.decorations.as_ref() {
986 editor_decorations
987 .prompt_editor
988 .update(cx, |prompt_editor, cx| prompt_editor.unlink(cx));
989 }
990 }
991 assist_group.assist_ids.clone()
992 }
993
994 pub fn start_assist(&mut self, assist_id: InlineAssistId, cx: &mut WindowContext) {
995 let assist = if let Some(assist) = self.assists.get_mut(&assist_id) {
996 assist
997 } else {
998 return;
999 };
1000
1001 let assist_group_id = assist.group_id;
1002 if self.assist_groups[&assist_group_id].linked {
1003 for assist_id in self.unlink_assist_group(assist_group_id, cx) {
1004 self.start_assist(assist_id, cx);
1005 }
1006 return;
1007 }
1008
1009 let Some(user_prompt) = assist.user_prompt(cx) else {
1010 return;
1011 };
1012
1013 self.prompt_history.retain(|prompt| *prompt != user_prompt);
1014 self.prompt_history.push_back(user_prompt.clone());
1015 if self.prompt_history.len() > PROMPT_HISTORY_MAX_LEN {
1016 self.prompt_history.pop_front();
1017 }
1018
1019 let assistant_panel_context = assist.assistant_panel_context(cx);
1020
1021 assist
1022 .codegen
1023 .update(cx, |codegen, cx| {
1024 codegen.start(user_prompt, assistant_panel_context, cx)
1025 })
1026 .log_err();
1027
1028 if let Some((tx, _)) = self.assist_observations.get(&assist_id) {
1029 tx.send(AssistStatus::Started).ok();
1030 }
1031 }
1032
1033 pub fn stop_assist(&mut self, assist_id: InlineAssistId, cx: &mut WindowContext) {
1034 let assist = if let Some(assist) = self.assists.get_mut(&assist_id) {
1035 assist
1036 } else {
1037 return;
1038 };
1039
1040 assist.codegen.update(cx, |codegen, cx| codegen.stop(cx));
1041
1042 if let Some((tx, _)) = self.assist_observations.get(&assist_id) {
1043 tx.send(AssistStatus::Stopped).ok();
1044 }
1045 }
1046
1047 pub fn assist_status(&self, assist_id: InlineAssistId, cx: &AppContext) -> InlineAssistStatus {
1048 if let Some(assist) = self.assists.get(&assist_id) {
1049 match assist.codegen.read(cx).status(cx) {
1050 CodegenStatus::Idle => InlineAssistStatus::Idle,
1051 CodegenStatus::Pending => InlineAssistStatus::Pending,
1052 CodegenStatus::Done => InlineAssistStatus::Done,
1053 CodegenStatus::Error(_) => InlineAssistStatus::Error,
1054 }
1055 } else if self.confirmed_assists.contains_key(&assist_id) {
1056 InlineAssistStatus::Confirmed
1057 } else {
1058 InlineAssistStatus::Canceled
1059 }
1060 }
1061
1062 fn update_editor_highlights(&self, editor: &View<Editor>, cx: &mut WindowContext) {
1063 let mut gutter_pending_ranges = Vec::new();
1064 let mut gutter_transformed_ranges = Vec::new();
1065 let mut foreground_ranges = Vec::new();
1066 let mut inserted_row_ranges = Vec::new();
1067 let empty_assist_ids = Vec::new();
1068 let assist_ids = self
1069 .assists_by_editor
1070 .get(&editor.downgrade())
1071 .map_or(&empty_assist_ids, |editor_assists| {
1072 &editor_assists.assist_ids
1073 });
1074
1075 for assist_id in assist_ids {
1076 if let Some(assist) = self.assists.get(assist_id) {
1077 let codegen = assist.codegen.read(cx);
1078 let buffer = codegen.buffer(cx).read(cx).read(cx);
1079 foreground_ranges.extend(codegen.last_equal_ranges(cx).iter().cloned());
1080
1081 let pending_range =
1082 codegen.edit_position(cx).unwrap_or(assist.range.start)..assist.range.end;
1083 if pending_range.end.to_offset(&buffer) > pending_range.start.to_offset(&buffer) {
1084 gutter_pending_ranges.push(pending_range);
1085 }
1086
1087 if let Some(edit_position) = codegen.edit_position(cx) {
1088 let edited_range = assist.range.start..edit_position;
1089 if edited_range.end.to_offset(&buffer) > edited_range.start.to_offset(&buffer) {
1090 gutter_transformed_ranges.push(edited_range);
1091 }
1092 }
1093
1094 if assist.decorations.is_some() {
1095 inserted_row_ranges
1096 .extend(codegen.diff(cx).inserted_row_ranges.iter().cloned());
1097 }
1098 }
1099 }
1100
1101 let snapshot = editor.read(cx).buffer().read(cx).snapshot(cx);
1102 merge_ranges(&mut foreground_ranges, &snapshot);
1103 merge_ranges(&mut gutter_pending_ranges, &snapshot);
1104 merge_ranges(&mut gutter_transformed_ranges, &snapshot);
1105 editor.update(cx, |editor, cx| {
1106 enum GutterPendingRange {}
1107 if gutter_pending_ranges.is_empty() {
1108 editor.clear_gutter_highlights::<GutterPendingRange>(cx);
1109 } else {
1110 editor.highlight_gutter::<GutterPendingRange>(
1111 &gutter_pending_ranges,
1112 |cx| cx.theme().status().info_background,
1113 cx,
1114 )
1115 }
1116
1117 enum GutterTransformedRange {}
1118 if gutter_transformed_ranges.is_empty() {
1119 editor.clear_gutter_highlights::<GutterTransformedRange>(cx);
1120 } else {
1121 editor.highlight_gutter::<GutterTransformedRange>(
1122 &gutter_transformed_ranges,
1123 |cx| cx.theme().status().info,
1124 cx,
1125 )
1126 }
1127
1128 if foreground_ranges.is_empty() {
1129 editor.clear_highlights::<InlineAssist>(cx);
1130 } else {
1131 editor.highlight_text::<InlineAssist>(
1132 foreground_ranges,
1133 HighlightStyle {
1134 fade_out: Some(0.6),
1135 ..Default::default()
1136 },
1137 cx,
1138 );
1139 }
1140
1141 editor.clear_row_highlights::<InlineAssist>();
1142 for row_range in inserted_row_ranges {
1143 editor.highlight_rows::<InlineAssist>(
1144 row_range,
1145 Some(cx.theme().status().info_background),
1146 false,
1147 cx,
1148 );
1149 }
1150 });
1151 }
1152
1153 fn update_editor_blocks(
1154 &mut self,
1155 editor: &View<Editor>,
1156 assist_id: InlineAssistId,
1157 cx: &mut WindowContext,
1158 ) {
1159 let Some(assist) = self.assists.get_mut(&assist_id) else {
1160 return;
1161 };
1162 let Some(decorations) = assist.decorations.as_mut() else {
1163 return;
1164 };
1165
1166 let codegen = assist.codegen.read(cx);
1167 let old_snapshot = codegen.snapshot(cx);
1168 let old_buffer = codegen.old_buffer(cx);
1169 let deleted_row_ranges = codegen.diff(cx).deleted_row_ranges.clone();
1170
1171 editor.update(cx, |editor, cx| {
1172 let old_blocks = mem::take(&mut decorations.removed_line_block_ids);
1173 editor.remove_blocks(old_blocks, None, cx);
1174
1175 let mut new_blocks = Vec::new();
1176 for (new_row, old_row_range) in deleted_row_ranges {
1177 let (_, buffer_start) = old_snapshot
1178 .point_to_buffer_offset(Point::new(*old_row_range.start(), 0))
1179 .unwrap();
1180 let (_, buffer_end) = old_snapshot
1181 .point_to_buffer_offset(Point::new(
1182 *old_row_range.end(),
1183 old_snapshot.line_len(MultiBufferRow(*old_row_range.end())),
1184 ))
1185 .unwrap();
1186
1187 let deleted_lines_editor = cx.new_view(|cx| {
1188 let multi_buffer = cx.new_model(|_| {
1189 MultiBuffer::without_headers(language::Capability::ReadOnly)
1190 });
1191 multi_buffer.update(cx, |multi_buffer, cx| {
1192 multi_buffer.push_excerpts(
1193 old_buffer.clone(),
1194 Some(ExcerptRange {
1195 context: buffer_start..buffer_end,
1196 primary: None,
1197 }),
1198 cx,
1199 );
1200 });
1201
1202 enum DeletedLines {}
1203 let mut editor = Editor::for_multibuffer(multi_buffer, None, true, cx);
1204 editor.set_soft_wrap_mode(language::language_settings::SoftWrap::None, cx);
1205 editor.set_show_wrap_guides(false, cx);
1206 editor.set_show_gutter(false, cx);
1207 editor.scroll_manager.set_forbid_vertical_scroll(true);
1208 editor.set_read_only(true);
1209 editor.set_show_inline_completions(Some(false), cx);
1210 editor.highlight_rows::<DeletedLines>(
1211 Anchor::min()..=Anchor::max(),
1212 Some(cx.theme().status().deleted_background),
1213 false,
1214 cx,
1215 );
1216 editor
1217 });
1218
1219 let height =
1220 deleted_lines_editor.update(cx, |editor, cx| editor.max_point(cx).row().0 + 1);
1221 new_blocks.push(BlockProperties {
1222 position: new_row,
1223 height,
1224 style: BlockStyle::Flex,
1225 render: Box::new(move |cx| {
1226 div()
1227 .bg(cx.theme().status().deleted_background)
1228 .size_full()
1229 .h(height as f32 * cx.line_height())
1230 .pl(cx.gutter_dimensions.full_width())
1231 .child(deleted_lines_editor.clone())
1232 .into_any_element()
1233 }),
1234 disposition: BlockDisposition::Above,
1235 priority: 0,
1236 });
1237 }
1238
1239 decorations.removed_line_block_ids = editor
1240 .insert_blocks(new_blocks, None, cx)
1241 .into_iter()
1242 .collect();
1243 })
1244 }
1245
1246 pub fn observe_assist(
1247 &mut self,
1248 assist_id: InlineAssistId,
1249 ) -> async_watch::Receiver<AssistStatus> {
1250 if let Some((_, rx)) = self.assist_observations.get(&assist_id) {
1251 rx.clone()
1252 } else {
1253 let (tx, rx) = async_watch::channel(AssistStatus::Idle);
1254 self.assist_observations.insert(assist_id, (tx, rx.clone()));
1255 rx
1256 }
1257 }
1258}
1259
1260pub enum InlineAssistStatus {
1261 Idle,
1262 Pending,
1263 Done,
1264 Error,
1265 Confirmed,
1266 Canceled,
1267}
1268
1269impl InlineAssistStatus {
1270 pub(crate) fn is_pending(&self) -> bool {
1271 matches!(self, Self::Pending)
1272 }
1273
1274 pub(crate) fn is_confirmed(&self) -> bool {
1275 matches!(self, Self::Confirmed)
1276 }
1277
1278 pub(crate) fn is_done(&self) -> bool {
1279 matches!(self, Self::Done)
1280 }
1281}
1282
1283struct EditorInlineAssists {
1284 assist_ids: Vec<InlineAssistId>,
1285 scroll_lock: Option<InlineAssistScrollLock>,
1286 highlight_updates: async_watch::Sender<()>,
1287 _update_highlights: Task<Result<()>>,
1288 _subscriptions: Vec<gpui::Subscription>,
1289}
1290
1291struct InlineAssistScrollLock {
1292 assist_id: InlineAssistId,
1293 distance_from_top: f32,
1294}
1295
1296impl EditorInlineAssists {
1297 #[allow(clippy::too_many_arguments)]
1298 fn new(editor: &View<Editor>, cx: &mut WindowContext) -> Self {
1299 let (highlight_updates_tx, mut highlight_updates_rx) = async_watch::channel(());
1300 Self {
1301 assist_ids: Vec::new(),
1302 scroll_lock: None,
1303 highlight_updates: highlight_updates_tx,
1304 _update_highlights: cx.spawn(|mut cx| {
1305 let editor = editor.downgrade();
1306 async move {
1307 while let Ok(()) = highlight_updates_rx.changed().await {
1308 let editor = editor.upgrade().context("editor was dropped")?;
1309 cx.update_global(|assistant: &mut InlineAssistant, cx| {
1310 assistant.update_editor_highlights(&editor, cx);
1311 })?;
1312 }
1313 Ok(())
1314 }
1315 }),
1316 _subscriptions: vec![
1317 cx.observe_release(editor, {
1318 let editor = editor.downgrade();
1319 |_, cx| {
1320 InlineAssistant::update_global(cx, |this, cx| {
1321 this.handle_editor_release(editor, cx);
1322 })
1323 }
1324 }),
1325 cx.observe(editor, move |editor, cx| {
1326 InlineAssistant::update_global(cx, |this, cx| {
1327 this.handle_editor_change(editor, cx)
1328 })
1329 }),
1330 cx.subscribe(editor, move |editor, event, cx| {
1331 InlineAssistant::update_global(cx, |this, cx| {
1332 this.handle_editor_event(editor, event, cx)
1333 })
1334 }),
1335 editor.update(cx, |editor, cx| {
1336 let editor_handle = cx.view().downgrade();
1337 editor.register_action(
1338 move |_: &editor::actions::Newline, cx: &mut WindowContext| {
1339 InlineAssistant::update_global(cx, |this, cx| {
1340 if let Some(editor) = editor_handle.upgrade() {
1341 this.handle_editor_newline(editor, cx)
1342 }
1343 })
1344 },
1345 )
1346 }),
1347 editor.update(cx, |editor, cx| {
1348 let editor_handle = cx.view().downgrade();
1349 editor.register_action(
1350 move |_: &editor::actions::Cancel, cx: &mut WindowContext| {
1351 InlineAssistant::update_global(cx, |this, cx| {
1352 if let Some(editor) = editor_handle.upgrade() {
1353 this.handle_editor_cancel(editor, cx)
1354 }
1355 })
1356 },
1357 )
1358 }),
1359 ],
1360 }
1361 }
1362}
1363
1364struct InlineAssistGroup {
1365 assist_ids: Vec<InlineAssistId>,
1366 linked: bool,
1367 active_assist_id: Option<InlineAssistId>,
1368}
1369
1370impl InlineAssistGroup {
1371 fn new() -> Self {
1372 Self {
1373 assist_ids: Vec::new(),
1374 linked: true,
1375 active_assist_id: None,
1376 }
1377 }
1378}
1379
1380fn build_assist_editor_renderer(editor: &View<PromptEditor>) -> RenderBlock {
1381 let editor = editor.clone();
1382 Box::new(move |cx: &mut BlockContext| {
1383 *editor.read(cx).gutter_dimensions.lock() = *cx.gutter_dimensions;
1384 editor.clone().into_any_element()
1385 })
1386}
1387
1388#[derive(Copy, Clone, Default, Debug, PartialEq, Eq, Hash)]
1389pub struct InlineAssistId(usize);
1390
1391impl InlineAssistId {
1392 fn post_inc(&mut self) -> InlineAssistId {
1393 let id = *self;
1394 self.0 += 1;
1395 id
1396 }
1397}
1398
1399#[derive(Copy, Clone, Default, Debug, PartialEq, Eq, Hash)]
1400struct InlineAssistGroupId(usize);
1401
1402impl InlineAssistGroupId {
1403 fn post_inc(&mut self) -> InlineAssistGroupId {
1404 let id = *self;
1405 self.0 += 1;
1406 id
1407 }
1408}
1409
1410enum PromptEditorEvent {
1411 StartRequested,
1412 StopRequested,
1413 ConfirmRequested,
1414 CancelRequested,
1415 DismissRequested,
1416}
1417
1418struct PromptEditor {
1419 id: InlineAssistId,
1420 fs: Arc<dyn Fs>,
1421 editor: View<Editor>,
1422 edited_since_done: bool,
1423 gutter_dimensions: Arc<Mutex<GutterDimensions>>,
1424 prompt_history: VecDeque<String>,
1425 prompt_history_ix: Option<usize>,
1426 pending_prompt: String,
1427 codegen: Model<Codegen>,
1428 _codegen_subscription: Subscription,
1429 editor_subscriptions: Vec<Subscription>,
1430 pending_token_count: Task<Result<()>>,
1431 token_counts: Option<TokenCounts>,
1432 _token_count_subscriptions: Vec<Subscription>,
1433 workspace: Option<WeakView<Workspace>>,
1434 show_rate_limit_notice: bool,
1435}
1436
1437#[derive(Copy, Clone)]
1438pub struct TokenCounts {
1439 total: usize,
1440 assistant_panel: usize,
1441}
1442
1443impl EventEmitter<PromptEditorEvent> for PromptEditor {}
1444
1445impl Render for PromptEditor {
1446 fn render(&mut self, cx: &mut ViewContext<Self>) -> impl IntoElement {
1447 let gutter_dimensions = *self.gutter_dimensions.lock();
1448 let codegen = self.codegen.read(cx);
1449
1450 let mut buttons = Vec::new();
1451 if codegen.alternative_count(cx) > 1 {
1452 buttons.push(self.render_cycle_controls(cx));
1453 }
1454
1455 let status = codegen.status(cx);
1456 buttons.extend(match status {
1457 CodegenStatus::Idle => {
1458 vec![
1459 IconButton::new("cancel", IconName::Close)
1460 .icon_color(Color::Muted)
1461 .shape(IconButtonShape::Square)
1462 .tooltip(|cx| Tooltip::for_action("Cancel Assist", &menu::Cancel, cx))
1463 .on_click(
1464 cx.listener(|_, _, cx| cx.emit(PromptEditorEvent::CancelRequested)),
1465 )
1466 .into_any_element(),
1467 IconButton::new("start", IconName::SparkleAlt)
1468 .icon_color(Color::Muted)
1469 .shape(IconButtonShape::Square)
1470 .tooltip(|cx| Tooltip::for_action("Transform", &menu::Confirm, cx))
1471 .on_click(
1472 cx.listener(|_, _, cx| cx.emit(PromptEditorEvent::StartRequested)),
1473 )
1474 .into_any_element(),
1475 ]
1476 }
1477 CodegenStatus::Pending => {
1478 vec![
1479 IconButton::new("cancel", IconName::Close)
1480 .icon_color(Color::Muted)
1481 .shape(IconButtonShape::Square)
1482 .tooltip(|cx| Tooltip::text("Cancel Assist", cx))
1483 .on_click(
1484 cx.listener(|_, _, cx| cx.emit(PromptEditorEvent::CancelRequested)),
1485 )
1486 .into_any_element(),
1487 IconButton::new("stop", IconName::Stop)
1488 .icon_color(Color::Error)
1489 .shape(IconButtonShape::Square)
1490 .tooltip(|cx| {
1491 Tooltip::with_meta(
1492 "Interrupt Transformation",
1493 Some(&menu::Cancel),
1494 "Changes won't be discarded",
1495 cx,
1496 )
1497 })
1498 .on_click(cx.listener(|_, _, cx| cx.emit(PromptEditorEvent::StopRequested)))
1499 .into_any_element(),
1500 ]
1501 }
1502 CodegenStatus::Error(_) | CodegenStatus::Done => {
1503 vec![
1504 IconButton::new("cancel", IconName::Close)
1505 .icon_color(Color::Muted)
1506 .shape(IconButtonShape::Square)
1507 .tooltip(|cx| Tooltip::for_action("Cancel Assist", &menu::Cancel, cx))
1508 .on_click(
1509 cx.listener(|_, _, cx| cx.emit(PromptEditorEvent::CancelRequested)),
1510 )
1511 .into_any_element(),
1512 if self.edited_since_done || matches!(status, CodegenStatus::Error(_)) {
1513 IconButton::new("restart", IconName::RotateCw)
1514 .icon_color(Color::Info)
1515 .shape(IconButtonShape::Square)
1516 .tooltip(|cx| {
1517 Tooltip::with_meta(
1518 "Restart Transformation",
1519 Some(&menu::Confirm),
1520 "Changes will be discarded",
1521 cx,
1522 )
1523 })
1524 .on_click(cx.listener(|_, _, cx| {
1525 cx.emit(PromptEditorEvent::StartRequested);
1526 }))
1527 .into_any_element()
1528 } else {
1529 IconButton::new("confirm", IconName::Check)
1530 .icon_color(Color::Info)
1531 .shape(IconButtonShape::Square)
1532 .tooltip(|cx| Tooltip::for_action("Confirm Assist", &menu::Confirm, cx))
1533 .on_click(cx.listener(|_, _, cx| {
1534 cx.emit(PromptEditorEvent::ConfirmRequested);
1535 }))
1536 .into_any_element()
1537 },
1538 ]
1539 }
1540 });
1541
1542 h_flex()
1543 .key_context("PromptEditor")
1544 .bg(cx.theme().colors().editor_background)
1545 .border_y_1()
1546 .border_color(cx.theme().status().info_border)
1547 .size_full()
1548 .py(cx.line_height() / 2.5)
1549 .on_action(cx.listener(Self::confirm))
1550 .on_action(cx.listener(Self::cancel))
1551 .on_action(cx.listener(Self::move_up))
1552 .on_action(cx.listener(Self::move_down))
1553 .capture_action(cx.listener(Self::cycle_prev))
1554 .capture_action(cx.listener(Self::cycle_next))
1555 .child(
1556 h_flex()
1557 .w(gutter_dimensions.full_width() + (gutter_dimensions.margin / 2.0))
1558 .justify_center()
1559 .gap_2()
1560 .child(
1561 ModelSelector::new(
1562 self.fs.clone(),
1563 IconButton::new("context", IconName::SettingsAlt)
1564 .shape(IconButtonShape::Square)
1565 .icon_size(IconSize::Small)
1566 .icon_color(Color::Muted)
1567 .tooltip(move |cx| {
1568 Tooltip::with_meta(
1569 format!(
1570 "Using {}",
1571 LanguageModelRegistry::read_global(cx)
1572 .active_model()
1573 .map(|model| model.name().0)
1574 .unwrap_or_else(|| "No model selected".into()),
1575 ),
1576 None,
1577 "Change Model",
1578 cx,
1579 )
1580 }),
1581 )
1582 .with_info_text(
1583 "Inline edits use context\n\
1584 from the currently selected\n\
1585 assistant panel tab.",
1586 ),
1587 )
1588 .map(|el| {
1589 let CodegenStatus::Error(error) = self.codegen.read(cx).status(cx) else {
1590 return el;
1591 };
1592
1593 let error_message = SharedString::from(error.to_string());
1594 if error.error_code() == proto::ErrorCode::RateLimitExceeded
1595 && cx.has_flag::<ZedPro>()
1596 {
1597 el.child(
1598 v_flex()
1599 .child(
1600 IconButton::new("rate-limit-error", IconName::XCircle)
1601 .selected(self.show_rate_limit_notice)
1602 .shape(IconButtonShape::Square)
1603 .icon_size(IconSize::Small)
1604 .on_click(cx.listener(Self::toggle_rate_limit_notice)),
1605 )
1606 .children(self.show_rate_limit_notice.then(|| {
1607 deferred(
1608 anchored()
1609 .position_mode(gpui::AnchoredPositionMode::Local)
1610 .position(point(px(0.), px(24.)))
1611 .anchor(gpui::AnchorCorner::TopLeft)
1612 .child(self.render_rate_limit_notice(cx)),
1613 )
1614 })),
1615 )
1616 } else {
1617 el.child(
1618 div()
1619 .id("error")
1620 .tooltip(move |cx| Tooltip::text(error_message.clone(), cx))
1621 .child(
1622 Icon::new(IconName::XCircle)
1623 .size(IconSize::Small)
1624 .color(Color::Error),
1625 ),
1626 )
1627 }
1628 }),
1629 )
1630 .child(div().flex_1().child(self.render_prompt_editor(cx)))
1631 .child(
1632 h_flex()
1633 .gap_2()
1634 .pr_6()
1635 .children(self.render_token_count(cx))
1636 .children(buttons),
1637 )
1638 }
1639}
1640
1641impl FocusableView for PromptEditor {
1642 fn focus_handle(&self, cx: &AppContext) -> FocusHandle {
1643 self.editor.focus_handle(cx)
1644 }
1645}
1646
1647impl PromptEditor {
1648 const MAX_LINES: u8 = 8;
1649
1650 #[allow(clippy::too_many_arguments)]
1651 fn new(
1652 id: InlineAssistId,
1653 gutter_dimensions: Arc<Mutex<GutterDimensions>>,
1654 prompt_history: VecDeque<String>,
1655 prompt_buffer: Model<MultiBuffer>,
1656 codegen: Model<Codegen>,
1657 parent_editor: &View<Editor>,
1658 assistant_panel: Option<&View<AssistantPanel>>,
1659 workspace: Option<WeakView<Workspace>>,
1660 fs: Arc<dyn Fs>,
1661 cx: &mut ViewContext<Self>,
1662 ) -> Self {
1663 let prompt_editor = cx.new_view(|cx| {
1664 let mut editor = Editor::new(
1665 EditorMode::AutoHeight {
1666 max_lines: Self::MAX_LINES as usize,
1667 },
1668 prompt_buffer,
1669 None,
1670 false,
1671 cx,
1672 );
1673 editor.set_soft_wrap_mode(language::language_settings::SoftWrap::EditorWidth, cx);
1674 // Since the prompt editors for all inline assistants are linked,
1675 // always show the cursor (even when it isn't focused) because
1676 // typing in one will make what you typed appear in all of them.
1677 editor.set_show_cursor_when_unfocused(true, cx);
1678 editor.set_placeholder_text("Add a prompt…", cx);
1679 editor
1680 });
1681
1682 let mut token_count_subscriptions = Vec::new();
1683 token_count_subscriptions
1684 .push(cx.subscribe(parent_editor, Self::handle_parent_editor_event));
1685 if let Some(assistant_panel) = assistant_panel {
1686 token_count_subscriptions
1687 .push(cx.subscribe(assistant_panel, Self::handle_assistant_panel_event));
1688 }
1689
1690 let mut this = Self {
1691 id,
1692 editor: prompt_editor,
1693 edited_since_done: false,
1694 gutter_dimensions,
1695 prompt_history,
1696 prompt_history_ix: None,
1697 pending_prompt: String::new(),
1698 _codegen_subscription: cx.observe(&codegen, Self::handle_codegen_changed),
1699 editor_subscriptions: Vec::new(),
1700 codegen,
1701 fs,
1702 pending_token_count: Task::ready(Ok(())),
1703 token_counts: None,
1704 _token_count_subscriptions: token_count_subscriptions,
1705 workspace,
1706 show_rate_limit_notice: false,
1707 };
1708 this.count_tokens(cx);
1709 this.subscribe_to_editor(cx);
1710 this
1711 }
1712
1713 fn subscribe_to_editor(&mut self, cx: &mut ViewContext<Self>) {
1714 self.editor_subscriptions.clear();
1715 self.editor_subscriptions
1716 .push(cx.subscribe(&self.editor, Self::handle_prompt_editor_events));
1717 }
1718
1719 fn set_show_cursor_when_unfocused(
1720 &mut self,
1721 show_cursor_when_unfocused: bool,
1722 cx: &mut ViewContext<Self>,
1723 ) {
1724 self.editor.update(cx, |editor, cx| {
1725 editor.set_show_cursor_when_unfocused(show_cursor_when_unfocused, cx)
1726 });
1727 }
1728
1729 fn unlink(&mut self, cx: &mut ViewContext<Self>) {
1730 let prompt = self.prompt(cx);
1731 let focus = self.editor.focus_handle(cx).contains_focused(cx);
1732 self.editor = cx.new_view(|cx| {
1733 let mut editor = Editor::auto_height(Self::MAX_LINES as usize, cx);
1734 editor.set_soft_wrap_mode(language::language_settings::SoftWrap::EditorWidth, cx);
1735 editor.set_placeholder_text("Add a prompt…", cx);
1736 editor.set_text(prompt, cx);
1737 if focus {
1738 editor.focus(cx);
1739 }
1740 editor
1741 });
1742 self.subscribe_to_editor(cx);
1743 }
1744
1745 fn prompt(&self, cx: &AppContext) -> String {
1746 self.editor.read(cx).text(cx)
1747 }
1748
1749 fn toggle_rate_limit_notice(&mut self, _: &ClickEvent, cx: &mut ViewContext<Self>) {
1750 self.show_rate_limit_notice = !self.show_rate_limit_notice;
1751 if self.show_rate_limit_notice {
1752 cx.focus_view(&self.editor);
1753 }
1754 cx.notify();
1755 }
1756
1757 fn handle_parent_editor_event(
1758 &mut self,
1759 _: View<Editor>,
1760 event: &EditorEvent,
1761 cx: &mut ViewContext<Self>,
1762 ) {
1763 if let EditorEvent::BufferEdited { .. } = event {
1764 self.count_tokens(cx);
1765 }
1766 }
1767
1768 fn handle_assistant_panel_event(
1769 &mut self,
1770 _: View<AssistantPanel>,
1771 event: &AssistantPanelEvent,
1772 cx: &mut ViewContext<Self>,
1773 ) {
1774 let AssistantPanelEvent::ContextEdited { .. } = event;
1775 self.count_tokens(cx);
1776 }
1777
1778 fn count_tokens(&mut self, cx: &mut ViewContext<Self>) {
1779 let assist_id = self.id;
1780 self.pending_token_count = cx.spawn(|this, mut cx| async move {
1781 cx.background_executor().timer(Duration::from_secs(1)).await;
1782 let token_count = cx
1783 .update_global(|inline_assistant: &mut InlineAssistant, cx| {
1784 let assist = inline_assistant
1785 .assists
1786 .get(&assist_id)
1787 .context("assist not found")?;
1788 anyhow::Ok(assist.count_tokens(cx))
1789 })??
1790 .await?;
1791
1792 this.update(&mut cx, |this, cx| {
1793 this.token_counts = Some(token_count);
1794 cx.notify();
1795 })
1796 })
1797 }
1798
1799 fn handle_prompt_editor_events(
1800 &mut self,
1801 _: View<Editor>,
1802 event: &EditorEvent,
1803 cx: &mut ViewContext<Self>,
1804 ) {
1805 match event {
1806 EditorEvent::Edited { .. } => {
1807 let prompt = self.editor.read(cx).text(cx);
1808 if self
1809 .prompt_history_ix
1810 .map_or(true, |ix| self.prompt_history[ix] != prompt)
1811 {
1812 self.prompt_history_ix.take();
1813 self.pending_prompt = prompt;
1814 }
1815
1816 self.edited_since_done = true;
1817 cx.notify();
1818 }
1819 EditorEvent::BufferEdited => {
1820 self.count_tokens(cx);
1821 }
1822 EditorEvent::Blurred => {
1823 if self.show_rate_limit_notice {
1824 self.show_rate_limit_notice = false;
1825 cx.notify();
1826 }
1827 }
1828 _ => {}
1829 }
1830 }
1831
1832 fn handle_codegen_changed(&mut self, _: Model<Codegen>, cx: &mut ViewContext<Self>) {
1833 match self.codegen.read(cx).status(cx) {
1834 CodegenStatus::Idle => {
1835 self.editor
1836 .update(cx, |editor, _| editor.set_read_only(false));
1837 }
1838 CodegenStatus::Pending => {
1839 self.editor
1840 .update(cx, |editor, _| editor.set_read_only(true));
1841 }
1842 CodegenStatus::Done => {
1843 self.edited_since_done = false;
1844 self.editor
1845 .update(cx, |editor, _| editor.set_read_only(false));
1846 }
1847 CodegenStatus::Error(error) => {
1848 if cx.has_flag::<ZedPro>()
1849 && error.error_code() == proto::ErrorCode::RateLimitExceeded
1850 && !dismissed_rate_limit_notice()
1851 {
1852 self.show_rate_limit_notice = true;
1853 cx.notify();
1854 }
1855
1856 self.edited_since_done = false;
1857 self.editor
1858 .update(cx, |editor, _| editor.set_read_only(false));
1859 }
1860 }
1861 }
1862
1863 fn cancel(&mut self, _: &editor::actions::Cancel, cx: &mut ViewContext<Self>) {
1864 match self.codegen.read(cx).status(cx) {
1865 CodegenStatus::Idle | CodegenStatus::Done | CodegenStatus::Error(_) => {
1866 cx.emit(PromptEditorEvent::CancelRequested);
1867 }
1868 CodegenStatus::Pending => {
1869 cx.emit(PromptEditorEvent::StopRequested);
1870 }
1871 }
1872 }
1873
1874 fn confirm(&mut self, _: &menu::Confirm, cx: &mut ViewContext<Self>) {
1875 match self.codegen.read(cx).status(cx) {
1876 CodegenStatus::Idle => {
1877 cx.emit(PromptEditorEvent::StartRequested);
1878 }
1879 CodegenStatus::Pending => {
1880 cx.emit(PromptEditorEvent::DismissRequested);
1881 }
1882 CodegenStatus::Done => {
1883 if self.edited_since_done {
1884 cx.emit(PromptEditorEvent::StartRequested);
1885 } else {
1886 cx.emit(PromptEditorEvent::ConfirmRequested);
1887 }
1888 }
1889 CodegenStatus::Error(_) => {
1890 cx.emit(PromptEditorEvent::StartRequested);
1891 }
1892 }
1893 }
1894
1895 fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
1896 if let Some(ix) = self.prompt_history_ix {
1897 if ix > 0 {
1898 self.prompt_history_ix = Some(ix - 1);
1899 let prompt = self.prompt_history[ix - 1].as_str();
1900 self.editor.update(cx, |editor, cx| {
1901 editor.set_text(prompt, cx);
1902 editor.move_to_beginning(&Default::default(), cx);
1903 });
1904 }
1905 } else if !self.prompt_history.is_empty() {
1906 self.prompt_history_ix = Some(self.prompt_history.len() - 1);
1907 let prompt = self.prompt_history[self.prompt_history.len() - 1].as_str();
1908 self.editor.update(cx, |editor, cx| {
1909 editor.set_text(prompt, cx);
1910 editor.move_to_beginning(&Default::default(), cx);
1911 });
1912 }
1913 }
1914
1915 fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
1916 if let Some(ix) = self.prompt_history_ix {
1917 if ix < self.prompt_history.len() - 1 {
1918 self.prompt_history_ix = Some(ix + 1);
1919 let prompt = self.prompt_history[ix + 1].as_str();
1920 self.editor.update(cx, |editor, cx| {
1921 editor.set_text(prompt, cx);
1922 editor.move_to_end(&Default::default(), cx)
1923 });
1924 } else {
1925 self.prompt_history_ix = None;
1926 let prompt = self.pending_prompt.as_str();
1927 self.editor.update(cx, |editor, cx| {
1928 editor.set_text(prompt, cx);
1929 editor.move_to_end(&Default::default(), cx)
1930 });
1931 }
1932 }
1933 }
1934
1935 fn cycle_prev(&mut self, _: &CyclePreviousInlineAssist, cx: &mut ViewContext<Self>) {
1936 self.codegen
1937 .update(cx, |codegen, cx| codegen.cycle_prev(cx));
1938 }
1939
1940 fn cycle_next(&mut self, _: &CycleNextInlineAssist, cx: &mut ViewContext<Self>) {
1941 self.codegen
1942 .update(cx, |codegen, cx| codegen.cycle_next(cx));
1943 }
1944
1945 fn render_cycle_controls(&self, cx: &ViewContext<Self>) -> AnyElement {
1946 let codegen = self.codegen.read(cx);
1947 let disabled = matches!(codegen.status(cx), CodegenStatus::Idle);
1948
1949 h_flex()
1950 .child(
1951 IconButton::new("previous", IconName::ChevronLeft)
1952 .icon_color(Color::Muted)
1953 .disabled(disabled)
1954 .shape(IconButtonShape::Square)
1955 .tooltip({
1956 let focus_handle = self.editor.focus_handle(cx);
1957 move |cx| {
1958 Tooltip::for_action_in(
1959 "Previous Alternative",
1960 &CyclePreviousInlineAssist,
1961 &focus_handle,
1962 cx,
1963 )
1964 }
1965 })
1966 .on_click(cx.listener(|this, _, cx| {
1967 this.codegen
1968 .update(cx, |codegen, cx| codegen.cycle_prev(cx))
1969 })),
1970 )
1971 .child(
1972 Label::new(format!(
1973 "{}/{}",
1974 codegen.active_alternative + 1,
1975 codegen.alternative_count(cx)
1976 ))
1977 .size(LabelSize::Small)
1978 .color(if disabled {
1979 Color::Disabled
1980 } else {
1981 Color::Muted
1982 }),
1983 )
1984 .child(
1985 IconButton::new("next", IconName::ChevronRight)
1986 .icon_color(Color::Muted)
1987 .disabled(disabled)
1988 .shape(IconButtonShape::Square)
1989 .tooltip({
1990 let focus_handle = self.editor.focus_handle(cx);
1991 move |cx| {
1992 Tooltip::for_action_in(
1993 "Next Alternative",
1994 &CycleNextInlineAssist,
1995 &focus_handle,
1996 cx,
1997 )
1998 }
1999 })
2000 .on_click(cx.listener(|this, _, cx| {
2001 this.codegen
2002 .update(cx, |codegen, cx| codegen.cycle_next(cx))
2003 })),
2004 )
2005 .into_any_element()
2006 }
2007
2008 fn render_token_count(&self, cx: &mut ViewContext<Self>) -> Option<impl IntoElement> {
2009 let model = LanguageModelRegistry::read_global(cx).active_model()?;
2010 let token_counts = self.token_counts?;
2011 let max_token_count = model.max_token_count();
2012
2013 let remaining_tokens = max_token_count as isize - token_counts.total as isize;
2014 let token_count_color = if remaining_tokens <= 0 {
2015 Color::Error
2016 } else if token_counts.total as f32 / max_token_count as f32 >= 0.8 {
2017 Color::Warning
2018 } else {
2019 Color::Muted
2020 };
2021
2022 let mut token_count = h_flex()
2023 .id("token_count")
2024 .gap_0p5()
2025 .child(
2026 Label::new(humanize_token_count(token_counts.total))
2027 .size(LabelSize::Small)
2028 .color(token_count_color),
2029 )
2030 .child(Label::new("/").size(LabelSize::Small).color(Color::Muted))
2031 .child(
2032 Label::new(humanize_token_count(max_token_count))
2033 .size(LabelSize::Small)
2034 .color(Color::Muted),
2035 );
2036 if let Some(workspace) = self.workspace.clone() {
2037 token_count = token_count
2038 .tooltip(move |cx| {
2039 Tooltip::with_meta(
2040 format!(
2041 "Tokens Used ({} from the Assistant Panel)",
2042 humanize_token_count(token_counts.assistant_panel)
2043 ),
2044 None,
2045 "Click to open the Assistant Panel",
2046 cx,
2047 )
2048 })
2049 .cursor_pointer()
2050 .on_mouse_down(gpui::MouseButton::Left, |_, cx| cx.stop_propagation())
2051 .on_click(move |_, cx| {
2052 cx.stop_propagation();
2053 workspace
2054 .update(cx, |workspace, cx| {
2055 workspace.focus_panel::<AssistantPanel>(cx)
2056 })
2057 .ok();
2058 });
2059 } else {
2060 token_count = token_count
2061 .cursor_default()
2062 .tooltip(|cx| Tooltip::text("Tokens used", cx));
2063 }
2064
2065 Some(token_count)
2066 }
2067
2068 fn render_prompt_editor(&self, cx: &mut ViewContext<Self>) -> impl IntoElement {
2069 let settings = ThemeSettings::get_global(cx);
2070 let text_style = TextStyle {
2071 color: if self.editor.read(cx).read_only(cx) {
2072 cx.theme().colors().text_disabled
2073 } else {
2074 cx.theme().colors().text
2075 },
2076 font_family: settings.buffer_font.family.clone(),
2077 font_fallbacks: settings.buffer_font.fallbacks.clone(),
2078 font_size: settings.buffer_font_size.into(),
2079 font_weight: settings.buffer_font.weight,
2080 line_height: relative(settings.buffer_line_height.value()),
2081 ..Default::default()
2082 };
2083 EditorElement::new(
2084 &self.editor,
2085 EditorStyle {
2086 background: cx.theme().colors().editor_background,
2087 local_player: cx.theme().players().local(),
2088 text: text_style,
2089 ..Default::default()
2090 },
2091 )
2092 }
2093
2094 fn render_rate_limit_notice(&self, cx: &mut ViewContext<Self>) -> impl IntoElement {
2095 Popover::new().child(
2096 v_flex()
2097 .occlude()
2098 .p_2()
2099 .child(
2100 Label::new("Out of Tokens")
2101 .size(LabelSize::Small)
2102 .weight(FontWeight::BOLD),
2103 )
2104 .child(Label::new(
2105 "Try Zed Pro for higher limits, a wider range of models, and more.",
2106 ))
2107 .child(
2108 h_flex()
2109 .justify_between()
2110 .child(CheckboxWithLabel::new(
2111 "dont-show-again",
2112 Label::new("Don't show again"),
2113 if dismissed_rate_limit_notice() {
2114 ui::Selection::Selected
2115 } else {
2116 ui::Selection::Unselected
2117 },
2118 |selection, cx| {
2119 let is_dismissed = match selection {
2120 ui::Selection::Unselected => false,
2121 ui::Selection::Indeterminate => return,
2122 ui::Selection::Selected => true,
2123 };
2124
2125 set_rate_limit_notice_dismissed(is_dismissed, cx)
2126 },
2127 ))
2128 .child(
2129 h_flex()
2130 .gap_2()
2131 .child(
2132 Button::new("dismiss", "Dismiss")
2133 .style(ButtonStyle::Transparent)
2134 .on_click(cx.listener(Self::toggle_rate_limit_notice)),
2135 )
2136 .child(Button::new("more-info", "More Info").on_click(
2137 |_event, cx| {
2138 cx.dispatch_action(Box::new(
2139 zed_actions::OpenAccountSettings,
2140 ))
2141 },
2142 )),
2143 ),
2144 ),
2145 )
2146 }
2147}
2148
2149const DISMISSED_RATE_LIMIT_NOTICE_KEY: &str = "dismissed-rate-limit-notice";
2150
2151fn dismissed_rate_limit_notice() -> bool {
2152 db::kvp::KEY_VALUE_STORE
2153 .read_kvp(DISMISSED_RATE_LIMIT_NOTICE_KEY)
2154 .log_err()
2155 .map_or(false, |s| s.is_some())
2156}
2157
2158fn set_rate_limit_notice_dismissed(is_dismissed: bool, cx: &mut AppContext) {
2159 db::write_and_log(cx, move || async move {
2160 if is_dismissed {
2161 db::kvp::KEY_VALUE_STORE
2162 .write_kvp(DISMISSED_RATE_LIMIT_NOTICE_KEY.into(), "1".into())
2163 .await
2164 } else {
2165 db::kvp::KEY_VALUE_STORE
2166 .delete_kvp(DISMISSED_RATE_LIMIT_NOTICE_KEY.into())
2167 .await
2168 }
2169 })
2170}
2171
2172struct InlineAssist {
2173 group_id: InlineAssistGroupId,
2174 range: Range<Anchor>,
2175 editor: WeakView<Editor>,
2176 decorations: Option<InlineAssistDecorations>,
2177 codegen: Model<Codegen>,
2178 _subscriptions: Vec<Subscription>,
2179 workspace: Option<WeakView<Workspace>>,
2180 include_context: bool,
2181}
2182
2183impl InlineAssist {
2184 #[allow(clippy::too_many_arguments)]
2185 fn new(
2186 assist_id: InlineAssistId,
2187 group_id: InlineAssistGroupId,
2188 include_context: bool,
2189 editor: &View<Editor>,
2190 prompt_editor: &View<PromptEditor>,
2191 prompt_block_id: CustomBlockId,
2192 end_block_id: CustomBlockId,
2193 range: Range<Anchor>,
2194 codegen: Model<Codegen>,
2195 workspace: Option<WeakView<Workspace>>,
2196 cx: &mut WindowContext,
2197 ) -> Self {
2198 let prompt_editor_focus_handle = prompt_editor.focus_handle(cx);
2199 InlineAssist {
2200 group_id,
2201 include_context,
2202 editor: editor.downgrade(),
2203 decorations: Some(InlineAssistDecorations {
2204 prompt_block_id,
2205 prompt_editor: prompt_editor.clone(),
2206 removed_line_block_ids: HashSet::default(),
2207 end_block_id,
2208 }),
2209 range,
2210 codegen: codegen.clone(),
2211 workspace: workspace.clone(),
2212 _subscriptions: vec![
2213 cx.on_focus_in(&prompt_editor_focus_handle, move |cx| {
2214 InlineAssistant::update_global(cx, |this, cx| {
2215 this.handle_prompt_editor_focus_in(assist_id, cx)
2216 })
2217 }),
2218 cx.on_focus_out(&prompt_editor_focus_handle, move |_, cx| {
2219 InlineAssistant::update_global(cx, |this, cx| {
2220 this.handle_prompt_editor_focus_out(assist_id, cx)
2221 })
2222 }),
2223 cx.subscribe(prompt_editor, |prompt_editor, event, cx| {
2224 InlineAssistant::update_global(cx, |this, cx| {
2225 this.handle_prompt_editor_event(prompt_editor, event, cx)
2226 })
2227 }),
2228 cx.observe(&codegen, {
2229 let editor = editor.downgrade();
2230 move |_, cx| {
2231 if let Some(editor) = editor.upgrade() {
2232 InlineAssistant::update_global(cx, |this, cx| {
2233 if let Some(editor_assists) =
2234 this.assists_by_editor.get(&editor.downgrade())
2235 {
2236 editor_assists.highlight_updates.send(()).ok();
2237 }
2238
2239 this.update_editor_blocks(&editor, assist_id, cx);
2240 })
2241 }
2242 }
2243 }),
2244 cx.subscribe(&codegen, move |codegen, event, cx| {
2245 InlineAssistant::update_global(cx, |this, cx| match event {
2246 CodegenEvent::Undone => this.finish_assist(assist_id, false, cx),
2247 CodegenEvent::Finished => {
2248 let assist = if let Some(assist) = this.assists.get(&assist_id) {
2249 assist
2250 } else {
2251 return;
2252 };
2253
2254 if let CodegenStatus::Error(error) = codegen.read(cx).status(cx) {
2255 if assist.decorations.is_none() {
2256 if let Some(workspace) = assist
2257 .workspace
2258 .as_ref()
2259 .and_then(|workspace| workspace.upgrade())
2260 {
2261 let error = format!("Inline assistant error: {}", error);
2262 workspace.update(cx, |workspace, cx| {
2263 struct InlineAssistantError;
2264
2265 let id =
2266 NotificationId::identified::<InlineAssistantError>(
2267 assist_id.0,
2268 );
2269
2270 workspace.show_toast(Toast::new(id, error), cx);
2271 })
2272 }
2273 }
2274 }
2275
2276 if assist.decorations.is_none() {
2277 this.finish_assist(assist_id, false, cx);
2278 } else if let Some(tx) = this.assist_observations.get(&assist_id) {
2279 tx.0.send(AssistStatus::Finished).ok();
2280 }
2281 }
2282 })
2283 }),
2284 ],
2285 }
2286 }
2287
2288 fn user_prompt(&self, cx: &AppContext) -> Option<String> {
2289 let decorations = self.decorations.as_ref()?;
2290 Some(decorations.prompt_editor.read(cx).prompt(cx))
2291 }
2292
2293 fn assistant_panel_context(&self, cx: &WindowContext) -> Option<LanguageModelRequest> {
2294 if self.include_context {
2295 let workspace = self.workspace.as_ref()?;
2296 let workspace = workspace.upgrade()?.read(cx);
2297 let assistant_panel = workspace.panel::<AssistantPanel>(cx)?;
2298 Some(
2299 assistant_panel
2300 .read(cx)
2301 .active_context(cx)?
2302 .read(cx)
2303 .to_completion_request(cx),
2304 )
2305 } else {
2306 None
2307 }
2308 }
2309
2310 pub fn count_tokens(&self, cx: &WindowContext) -> BoxFuture<'static, Result<TokenCounts>> {
2311 let Some(user_prompt) = self.user_prompt(cx) else {
2312 return future::ready(Err(anyhow!("no user prompt"))).boxed();
2313 };
2314 let assistant_panel_context = self.assistant_panel_context(cx);
2315 self.codegen
2316 .read(cx)
2317 .count_tokens(user_prompt, assistant_panel_context, cx)
2318 }
2319}
2320
2321struct InlineAssistDecorations {
2322 prompt_block_id: CustomBlockId,
2323 prompt_editor: View<PromptEditor>,
2324 removed_line_block_ids: HashSet<CustomBlockId>,
2325 end_block_id: CustomBlockId,
2326}
2327
2328#[derive(Copy, Clone, Debug)]
2329pub enum CodegenEvent {
2330 Finished,
2331 Undone,
2332}
2333
2334pub struct Codegen {
2335 alternatives: Vec<Model<CodegenAlternative>>,
2336 active_alternative: usize,
2337 subscriptions: Vec<Subscription>,
2338 buffer: Model<MultiBuffer>,
2339 range: Range<Anchor>,
2340 initial_transaction_id: Option<TransactionId>,
2341 telemetry: Option<Arc<Telemetry>>,
2342 builder: Arc<PromptBuilder>,
2343}
2344
2345impl Codegen {
2346 pub fn new(
2347 buffer: Model<MultiBuffer>,
2348 range: Range<Anchor>,
2349 initial_transaction_id: Option<TransactionId>,
2350 telemetry: Option<Arc<Telemetry>>,
2351 builder: Arc<PromptBuilder>,
2352 cx: &mut ModelContext<Self>,
2353 ) -> Self {
2354 let codegen = cx.new_model(|cx| {
2355 CodegenAlternative::new(
2356 buffer.clone(),
2357 range.clone(),
2358 false,
2359 telemetry.clone(),
2360 builder.clone(),
2361 cx,
2362 )
2363 });
2364 let mut this = Self {
2365 alternatives: vec![codegen],
2366 active_alternative: 0,
2367 subscriptions: Vec::new(),
2368 buffer,
2369 range,
2370 initial_transaction_id,
2371 telemetry,
2372 builder,
2373 };
2374 this.activate(0, cx);
2375 this
2376 }
2377
2378 fn subscribe_to_alternative(&mut self, cx: &mut ModelContext<Self>) {
2379 let codegen = self.active_alternative().clone();
2380 self.subscriptions.clear();
2381 self.subscriptions
2382 .push(cx.observe(&codegen, |_, _, cx| cx.notify()));
2383 self.subscriptions
2384 .push(cx.subscribe(&codegen, |_, _, event, cx| cx.emit(*event)));
2385 }
2386
2387 fn active_alternative(&self) -> &Model<CodegenAlternative> {
2388 &self.alternatives[self.active_alternative]
2389 }
2390
2391 fn status<'a>(&self, cx: &'a AppContext) -> &'a CodegenStatus {
2392 &self.active_alternative().read(cx).status
2393 }
2394
2395 fn alternative_count(&self, cx: &AppContext) -> usize {
2396 LanguageModelRegistry::read_global(cx)
2397 .inline_alternative_models()
2398 .len()
2399 + 1
2400 }
2401
2402 pub fn cycle_prev(&mut self, cx: &mut ModelContext<Self>) {
2403 let next_active_ix = if self.active_alternative == 0 {
2404 self.alternatives.len() - 1
2405 } else {
2406 self.active_alternative - 1
2407 };
2408 self.activate(next_active_ix, cx);
2409 }
2410
2411 pub fn cycle_next(&mut self, cx: &mut ModelContext<Self>) {
2412 let next_active_ix = (self.active_alternative + 1) % self.alternatives.len();
2413 self.activate(next_active_ix, cx);
2414 }
2415
2416 fn activate(&mut self, index: usize, cx: &mut ModelContext<Self>) {
2417 self.active_alternative()
2418 .update(cx, |codegen, cx| codegen.set_active(false, cx));
2419 self.active_alternative = index;
2420 self.active_alternative()
2421 .update(cx, |codegen, cx| codegen.set_active(true, cx));
2422 self.subscribe_to_alternative(cx);
2423 cx.notify();
2424 }
2425
2426 pub fn start(
2427 &mut self,
2428 user_prompt: String,
2429 assistant_panel_context: Option<LanguageModelRequest>,
2430 cx: &mut ModelContext<Self>,
2431 ) -> Result<()> {
2432 let alternative_models = LanguageModelRegistry::read_global(cx)
2433 .inline_alternative_models()
2434 .to_vec();
2435
2436 self.active_alternative()
2437 .update(cx, |alternative, cx| alternative.undo(cx));
2438 self.activate(0, cx);
2439 self.alternatives.truncate(1);
2440
2441 for _ in 0..alternative_models.len() {
2442 self.alternatives.push(cx.new_model(|cx| {
2443 CodegenAlternative::new(
2444 self.buffer.clone(),
2445 self.range.clone(),
2446 false,
2447 self.telemetry.clone(),
2448 self.builder.clone(),
2449 cx,
2450 )
2451 }));
2452 }
2453
2454 let primary_model = LanguageModelRegistry::read_global(cx)
2455 .active_model()
2456 .context("no active model")?;
2457
2458 for (model, alternative) in iter::once(primary_model)
2459 .chain(alternative_models)
2460 .zip(&self.alternatives)
2461 {
2462 alternative.update(cx, |alternative, cx| {
2463 alternative.start(
2464 user_prompt.clone(),
2465 assistant_panel_context.clone(),
2466 model.clone(),
2467 cx,
2468 )
2469 })?;
2470 }
2471
2472 Ok(())
2473 }
2474
2475 pub fn stop(&mut self, cx: &mut ModelContext<Self>) {
2476 for codegen in &self.alternatives {
2477 codegen.update(cx, |codegen, cx| codegen.stop(cx));
2478 }
2479 }
2480
2481 pub fn undo(&mut self, cx: &mut ModelContext<Self>) {
2482 self.active_alternative()
2483 .update(cx, |codegen, cx| codegen.undo(cx));
2484
2485 self.buffer.update(cx, |buffer, cx| {
2486 if let Some(transaction_id) = self.initial_transaction_id.take() {
2487 buffer.undo_transaction(transaction_id, cx);
2488 buffer.refresh_preview(cx);
2489 }
2490 });
2491 }
2492
2493 pub fn count_tokens(
2494 &self,
2495 user_prompt: String,
2496 assistant_panel_context: Option<LanguageModelRequest>,
2497 cx: &AppContext,
2498 ) -> BoxFuture<'static, Result<TokenCounts>> {
2499 self.active_alternative()
2500 .read(cx)
2501 .count_tokens(user_prompt, assistant_panel_context, cx)
2502 }
2503
2504 pub fn buffer(&self, cx: &AppContext) -> Model<MultiBuffer> {
2505 self.active_alternative().read(cx).buffer.clone()
2506 }
2507
2508 pub fn old_buffer(&self, cx: &AppContext) -> Model<Buffer> {
2509 self.active_alternative().read(cx).old_buffer.clone()
2510 }
2511
2512 pub fn snapshot(&self, cx: &AppContext) -> MultiBufferSnapshot {
2513 self.active_alternative().read(cx).snapshot.clone()
2514 }
2515
2516 pub fn edit_position(&self, cx: &AppContext) -> Option<Anchor> {
2517 self.active_alternative().read(cx).edit_position
2518 }
2519
2520 fn diff<'a>(&self, cx: &'a AppContext) -> &'a Diff {
2521 &self.active_alternative().read(cx).diff
2522 }
2523
2524 pub fn last_equal_ranges<'a>(&self, cx: &'a AppContext) -> &'a [Range<Anchor>] {
2525 self.active_alternative().read(cx).last_equal_ranges()
2526 }
2527}
2528
2529impl EventEmitter<CodegenEvent> for Codegen {}
2530
2531pub struct CodegenAlternative {
2532 buffer: Model<MultiBuffer>,
2533 old_buffer: Model<Buffer>,
2534 snapshot: MultiBufferSnapshot,
2535 edit_position: Option<Anchor>,
2536 range: Range<Anchor>,
2537 last_equal_ranges: Vec<Range<Anchor>>,
2538 transformation_transaction_id: Option<TransactionId>,
2539 status: CodegenStatus,
2540 generation: Task<()>,
2541 diff: Diff,
2542 telemetry: Option<Arc<Telemetry>>,
2543 _subscription: gpui::Subscription,
2544 builder: Arc<PromptBuilder>,
2545 active: bool,
2546 edits: Vec<(Range<Anchor>, String)>,
2547 line_operations: Vec<LineOperation>,
2548}
2549
2550enum CodegenStatus {
2551 Idle,
2552 Pending,
2553 Done,
2554 Error(anyhow::Error),
2555}
2556
2557#[derive(Default)]
2558struct Diff {
2559 deleted_row_ranges: Vec<(Anchor, RangeInclusive<u32>)>,
2560 inserted_row_ranges: Vec<RangeInclusive<Anchor>>,
2561}
2562
2563impl Diff {
2564 fn is_empty(&self) -> bool {
2565 self.deleted_row_ranges.is_empty() && self.inserted_row_ranges.is_empty()
2566 }
2567}
2568
2569impl EventEmitter<CodegenEvent> for CodegenAlternative {}
2570
2571impl CodegenAlternative {
2572 pub fn new(
2573 buffer: Model<MultiBuffer>,
2574 range: Range<Anchor>,
2575 active: bool,
2576 telemetry: Option<Arc<Telemetry>>,
2577 builder: Arc<PromptBuilder>,
2578 cx: &mut ModelContext<Self>,
2579 ) -> Self {
2580 let snapshot = buffer.read(cx).snapshot(cx);
2581
2582 let (old_buffer, _, _) = buffer
2583 .read(cx)
2584 .range_to_buffer_ranges(range.clone(), cx)
2585 .pop()
2586 .unwrap();
2587 let old_buffer = cx.new_model(|cx| {
2588 let old_buffer = old_buffer.read(cx);
2589 let text = old_buffer.as_rope().clone();
2590 let line_ending = old_buffer.line_ending();
2591 let language = old_buffer.language().cloned();
2592 let language_registry = old_buffer.language_registry();
2593
2594 let mut buffer = Buffer::local_normalized(text, line_ending, cx);
2595 buffer.set_language(language, cx);
2596 if let Some(language_registry) = language_registry {
2597 buffer.set_language_registry(language_registry)
2598 }
2599 buffer
2600 });
2601
2602 Self {
2603 buffer: buffer.clone(),
2604 old_buffer,
2605 edit_position: None,
2606 snapshot,
2607 last_equal_ranges: Default::default(),
2608 transformation_transaction_id: None,
2609 status: CodegenStatus::Idle,
2610 generation: Task::ready(()),
2611 diff: Diff::default(),
2612 telemetry,
2613 _subscription: cx.subscribe(&buffer, Self::handle_buffer_event),
2614 builder,
2615 active,
2616 edits: Vec::new(),
2617 line_operations: Vec::new(),
2618 range,
2619 }
2620 }
2621
2622 fn set_active(&mut self, active: bool, cx: &mut ModelContext<Self>) {
2623 if active != self.active {
2624 self.active = active;
2625
2626 if self.active {
2627 let edits = self.edits.clone();
2628 self.apply_edits(edits, cx);
2629 if matches!(self.status, CodegenStatus::Pending) {
2630 let line_operations = self.line_operations.clone();
2631 self.reapply_line_based_diff(line_operations, cx);
2632 } else {
2633 self.reapply_batch_diff(cx).detach();
2634 }
2635 } else if let Some(transaction_id) = self.transformation_transaction_id.take() {
2636 self.buffer.update(cx, |buffer, cx| {
2637 buffer.undo_transaction(transaction_id, cx);
2638 buffer.forget_transaction(transaction_id, cx);
2639 });
2640 }
2641 }
2642 }
2643
2644 fn handle_buffer_event(
2645 &mut self,
2646 _buffer: Model<MultiBuffer>,
2647 event: &multi_buffer::Event,
2648 cx: &mut ModelContext<Self>,
2649 ) {
2650 if let multi_buffer::Event::TransactionUndone { transaction_id } = event {
2651 if self.transformation_transaction_id == Some(*transaction_id) {
2652 self.transformation_transaction_id = None;
2653 self.generation = Task::ready(());
2654 cx.emit(CodegenEvent::Undone);
2655 }
2656 }
2657 }
2658
2659 pub fn last_equal_ranges(&self) -> &[Range<Anchor>] {
2660 &self.last_equal_ranges
2661 }
2662
2663 pub fn count_tokens(
2664 &self,
2665 user_prompt: String,
2666 assistant_panel_context: Option<LanguageModelRequest>,
2667 cx: &AppContext,
2668 ) -> BoxFuture<'static, Result<TokenCounts>> {
2669 if let Some(model) = LanguageModelRegistry::read_global(cx).active_model() {
2670 let request = self.build_request(user_prompt, assistant_panel_context.clone(), cx);
2671 match request {
2672 Ok(request) => {
2673 let total_count = model.count_tokens(request.clone(), cx);
2674 let assistant_panel_count = assistant_panel_context
2675 .map(|context| model.count_tokens(context, cx))
2676 .unwrap_or_else(|| future::ready(Ok(0)).boxed());
2677
2678 async move {
2679 Ok(TokenCounts {
2680 total: total_count.await?,
2681 assistant_panel: assistant_panel_count.await?,
2682 })
2683 }
2684 .boxed()
2685 }
2686 Err(error) => futures::future::ready(Err(error)).boxed(),
2687 }
2688 } else {
2689 future::ready(Err(anyhow!("no active model"))).boxed()
2690 }
2691 }
2692
2693 pub fn start(
2694 &mut self,
2695 user_prompt: String,
2696 assistant_panel_context: Option<LanguageModelRequest>,
2697 model: Arc<dyn LanguageModel>,
2698 cx: &mut ModelContext<Self>,
2699 ) -> Result<()> {
2700 if let Some(transformation_transaction_id) = self.transformation_transaction_id.take() {
2701 self.buffer.update(cx, |buffer, cx| {
2702 buffer.undo_transaction(transformation_transaction_id, cx);
2703 });
2704 }
2705
2706 self.edit_position = Some(self.range.start.bias_right(&self.snapshot));
2707
2708 let telemetry_id = model.telemetry_id();
2709 let chunks: LocalBoxFuture<Result<BoxStream<Result<String>>>> =
2710 if user_prompt.trim().to_lowercase() == "delete" {
2711 async { Ok(stream::empty().boxed()) }.boxed_local()
2712 } else {
2713 let request = self.build_request(user_prompt, assistant_panel_context, cx)?;
2714
2715 let chunks = cx
2716 .spawn(|_, cx| async move { model.stream_completion_text(request, &cx).await });
2717 async move { Ok(chunks.await?.boxed()) }.boxed_local()
2718 };
2719 self.handle_stream(telemetry_id, chunks, cx);
2720 Ok(())
2721 }
2722
2723 fn build_request(
2724 &self,
2725 user_prompt: String,
2726 assistant_panel_context: Option<LanguageModelRequest>,
2727 cx: &AppContext,
2728 ) -> Result<LanguageModelRequest> {
2729 let buffer = self.buffer.read(cx).snapshot(cx);
2730 let language = buffer.language_at(self.range.start);
2731 let language_name = if let Some(language) = language.as_ref() {
2732 if Arc::ptr_eq(language, &language::PLAIN_TEXT) {
2733 None
2734 } else {
2735 Some(language.name())
2736 }
2737 } else {
2738 None
2739 };
2740
2741 let language_name = language_name.as_ref();
2742 let start = buffer.point_to_buffer_offset(self.range.start);
2743 let end = buffer.point_to_buffer_offset(self.range.end);
2744 let (buffer, range) = if let Some((start, end)) = start.zip(end) {
2745 let (start_buffer, start_buffer_offset) = start;
2746 let (end_buffer, end_buffer_offset) = end;
2747 if start_buffer.remote_id() == end_buffer.remote_id() {
2748 (start_buffer.clone(), start_buffer_offset..end_buffer_offset)
2749 } else {
2750 return Err(anyhow::anyhow!("invalid transformation range"));
2751 }
2752 } else {
2753 return Err(anyhow::anyhow!("invalid transformation range"));
2754 };
2755
2756 let prompt = self
2757 .builder
2758 .generate_content_prompt(user_prompt, language_name, buffer, range)
2759 .map_err(|e| anyhow::anyhow!("Failed to generate content prompt: {}", e))?;
2760
2761 let mut messages = Vec::new();
2762 if let Some(context_request) = assistant_panel_context {
2763 messages = context_request.messages;
2764 }
2765
2766 messages.push(LanguageModelRequestMessage {
2767 role: Role::User,
2768 content: vec![prompt.into()],
2769 cache: false,
2770 });
2771
2772 Ok(LanguageModelRequest {
2773 messages,
2774 tools: Vec::new(),
2775 stop: Vec::new(),
2776 temperature: None,
2777 })
2778 }
2779
2780 pub fn handle_stream(
2781 &mut self,
2782 model_telemetry_id: String,
2783 stream: impl 'static + Future<Output = Result<BoxStream<'static, Result<String>>>>,
2784 cx: &mut ModelContext<Self>,
2785 ) {
2786 let snapshot = self.snapshot.clone();
2787 let selected_text = snapshot
2788 .text_for_range(self.range.start..self.range.end)
2789 .collect::<Rope>();
2790
2791 let selection_start = self.range.start.to_point(&snapshot);
2792
2793 // Start with the indentation of the first line in the selection
2794 let mut suggested_line_indent = snapshot
2795 .suggested_indents(selection_start.row..=selection_start.row, cx)
2796 .into_values()
2797 .next()
2798 .unwrap_or_else(|| snapshot.indent_size_for_line(MultiBufferRow(selection_start.row)));
2799
2800 // If the first line in the selection does not have indentation, check the following lines
2801 if suggested_line_indent.len == 0 && suggested_line_indent.kind == IndentKind::Space {
2802 for row in selection_start.row..=self.range.end.to_point(&snapshot).row {
2803 let line_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
2804 // Prefer tabs if a line in the selection uses tabs as indentation
2805 if line_indent.kind == IndentKind::Tab {
2806 suggested_line_indent.kind = IndentKind::Tab;
2807 break;
2808 }
2809 }
2810 }
2811
2812 let telemetry = self.telemetry.clone();
2813 self.diff = Diff::default();
2814 self.status = CodegenStatus::Pending;
2815 let mut edit_start = self.range.start.to_offset(&snapshot);
2816 self.generation = cx.spawn(|codegen, mut cx| {
2817 async move {
2818 let chunks = stream.await;
2819 let generate = async {
2820 let (mut diff_tx, mut diff_rx) = mpsc::channel(1);
2821 let line_based_stream_diff: Task<anyhow::Result<()>> =
2822 cx.background_executor().spawn(async move {
2823 let mut response_latency = None;
2824 let request_start = Instant::now();
2825 let diff = async {
2826 let chunks = StripInvalidSpans::new(chunks?);
2827 futures::pin_mut!(chunks);
2828 let mut diff = StreamingDiff::new(selected_text.to_string());
2829 let mut line_diff = LineDiff::default();
2830
2831 let mut new_text = String::new();
2832 let mut base_indent = None;
2833 let mut line_indent = None;
2834 let mut first_line = true;
2835
2836 while let Some(chunk) = chunks.next().await {
2837 if response_latency.is_none() {
2838 response_latency = Some(request_start.elapsed());
2839 }
2840 let chunk = chunk?;
2841
2842 let mut lines = chunk.split('\n').peekable();
2843 while let Some(line) = lines.next() {
2844 new_text.push_str(line);
2845 if line_indent.is_none() {
2846 if let Some(non_whitespace_ch_ix) =
2847 new_text.find(|ch: char| !ch.is_whitespace())
2848 {
2849 line_indent = Some(non_whitespace_ch_ix);
2850 base_indent = base_indent.or(line_indent);
2851
2852 let line_indent = line_indent.unwrap();
2853 let base_indent = base_indent.unwrap();
2854 let indent_delta =
2855 line_indent as i32 - base_indent as i32;
2856 let mut corrected_indent_len = cmp::max(
2857 0,
2858 suggested_line_indent.len as i32 + indent_delta,
2859 )
2860 as usize;
2861 if first_line {
2862 corrected_indent_len = corrected_indent_len
2863 .saturating_sub(
2864 selection_start.column as usize,
2865 );
2866 }
2867
2868 let indent_char = suggested_line_indent.char();
2869 let mut indent_buffer = [0; 4];
2870 let indent_str =
2871 indent_char.encode_utf8(&mut indent_buffer);
2872 new_text.replace_range(
2873 ..line_indent,
2874 &indent_str.repeat(corrected_indent_len),
2875 );
2876 }
2877 }
2878
2879 if line_indent.is_some() {
2880 let char_ops = diff.push_new(&new_text);
2881 line_diff
2882 .push_char_operations(&char_ops, &selected_text);
2883 diff_tx
2884 .send((char_ops, line_diff.line_operations()))
2885 .await?;
2886 new_text.clear();
2887 }
2888
2889 if lines.peek().is_some() {
2890 let char_ops = diff.push_new("\n");
2891 line_diff
2892 .push_char_operations(&char_ops, &selected_text);
2893 diff_tx
2894 .send((char_ops, line_diff.line_operations()))
2895 .await?;
2896 if line_indent.is_none() {
2897 // Don't write out the leading indentation in empty lines on the next line
2898 // This is the case where the above if statement didn't clear the buffer
2899 new_text.clear();
2900 }
2901 line_indent = None;
2902 first_line = false;
2903 }
2904 }
2905 }
2906
2907 let mut char_ops = diff.push_new(&new_text);
2908 char_ops.extend(diff.finish());
2909 line_diff.push_char_operations(&char_ops, &selected_text);
2910 line_diff.finish(&selected_text);
2911 diff_tx
2912 .send((char_ops, line_diff.line_operations()))
2913 .await?;
2914
2915 anyhow::Ok(())
2916 };
2917
2918 let result = diff.await;
2919
2920 let error_message =
2921 result.as_ref().err().map(|error| error.to_string());
2922 if let Some(telemetry) = telemetry {
2923 telemetry.report_assistant_event(
2924 None,
2925 telemetry_events::AssistantKind::Inline,
2926 telemetry_events::AssistantPhase::Response,
2927 model_telemetry_id,
2928 response_latency,
2929 error_message,
2930 );
2931 }
2932
2933 result?;
2934 Ok(())
2935 });
2936
2937 while let Some((char_ops, line_ops)) = diff_rx.next().await {
2938 codegen.update(&mut cx, |codegen, cx| {
2939 codegen.last_equal_ranges.clear();
2940
2941 let edits = char_ops
2942 .into_iter()
2943 .filter_map(|operation| match operation {
2944 CharOperation::Insert { text } => {
2945 let edit_start = snapshot.anchor_after(edit_start);
2946 Some((edit_start..edit_start, text))
2947 }
2948 CharOperation::Delete { bytes } => {
2949 let edit_end = edit_start + bytes;
2950 let edit_range = snapshot.anchor_after(edit_start)
2951 ..snapshot.anchor_before(edit_end);
2952 edit_start = edit_end;
2953 Some((edit_range, String::new()))
2954 }
2955 CharOperation::Keep { bytes } => {
2956 let edit_end = edit_start + bytes;
2957 let edit_range = snapshot.anchor_after(edit_start)
2958 ..snapshot.anchor_before(edit_end);
2959 edit_start = edit_end;
2960 codegen.last_equal_ranges.push(edit_range);
2961 None
2962 }
2963 })
2964 .collect::<Vec<_>>();
2965
2966 if codegen.active {
2967 codegen.apply_edits(edits.iter().cloned(), cx);
2968 codegen.reapply_line_based_diff(line_ops.iter().cloned(), cx);
2969 }
2970 codegen.edits.extend(edits);
2971 codegen.line_operations = line_ops;
2972 codegen.edit_position = Some(snapshot.anchor_after(edit_start));
2973
2974 cx.notify();
2975 })?;
2976 }
2977
2978 // Streaming stopped and we have the new text in the buffer, and a line-based diff applied for the whole new buffer.
2979 // That diff is not what a regular diff is and might look unexpected, ergo apply a regular diff.
2980 // It's fine to apply even if the rest of the line diffing fails, as no more hunks are coming through `diff_rx`.
2981 let batch_diff_task =
2982 codegen.update(&mut cx, |codegen, cx| codegen.reapply_batch_diff(cx))?;
2983 let (line_based_stream_diff, ()) =
2984 join!(line_based_stream_diff, batch_diff_task);
2985 line_based_stream_diff?;
2986
2987 anyhow::Ok(())
2988 };
2989
2990 let result = generate.await;
2991 codegen
2992 .update(&mut cx, |this, cx| {
2993 this.last_equal_ranges.clear();
2994 if let Err(error) = result {
2995 this.status = CodegenStatus::Error(error);
2996 } else {
2997 this.status = CodegenStatus::Done;
2998 }
2999 cx.emit(CodegenEvent::Finished);
3000 cx.notify();
3001 })
3002 .ok();
3003 }
3004 });
3005 cx.notify();
3006 }
3007
3008 pub fn stop(&mut self, cx: &mut ModelContext<Self>) {
3009 self.last_equal_ranges.clear();
3010 if self.diff.is_empty() {
3011 self.status = CodegenStatus::Idle;
3012 } else {
3013 self.status = CodegenStatus::Done;
3014 }
3015 self.generation = Task::ready(());
3016 cx.emit(CodegenEvent::Finished);
3017 cx.notify();
3018 }
3019
3020 pub fn undo(&mut self, cx: &mut ModelContext<Self>) {
3021 self.buffer.update(cx, |buffer, cx| {
3022 if let Some(transaction_id) = self.transformation_transaction_id.take() {
3023 buffer.undo_transaction(transaction_id, cx);
3024 buffer.refresh_preview(cx);
3025 }
3026 });
3027 }
3028
3029 fn apply_edits(
3030 &mut self,
3031 edits: impl IntoIterator<Item = (Range<Anchor>, String)>,
3032 cx: &mut ModelContext<CodegenAlternative>,
3033 ) {
3034 let transaction = self.buffer.update(cx, |buffer, cx| {
3035 // Avoid grouping assistant edits with user edits.
3036 buffer.finalize_last_transaction(cx);
3037 buffer.start_transaction(cx);
3038 buffer.edit(edits, None, cx);
3039 buffer.end_transaction(cx)
3040 });
3041
3042 if let Some(transaction) = transaction {
3043 if let Some(first_transaction) = self.transformation_transaction_id {
3044 // Group all assistant edits into the first transaction.
3045 self.buffer.update(cx, |buffer, cx| {
3046 buffer.merge_transactions(transaction, first_transaction, cx)
3047 });
3048 } else {
3049 self.transformation_transaction_id = Some(transaction);
3050 self.buffer
3051 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
3052 }
3053 }
3054 }
3055
3056 fn reapply_line_based_diff(
3057 &mut self,
3058 line_operations: impl IntoIterator<Item = LineOperation>,
3059 cx: &mut ModelContext<Self>,
3060 ) {
3061 let old_snapshot = self.snapshot.clone();
3062 let old_range = self.range.to_point(&old_snapshot);
3063 let new_snapshot = self.buffer.read(cx).snapshot(cx);
3064 let new_range = self.range.to_point(&new_snapshot);
3065
3066 let mut old_row = old_range.start.row;
3067 let mut new_row = new_range.start.row;
3068
3069 self.diff.deleted_row_ranges.clear();
3070 self.diff.inserted_row_ranges.clear();
3071 for operation in line_operations {
3072 match operation {
3073 LineOperation::Keep { lines } => {
3074 old_row += lines;
3075 new_row += lines;
3076 }
3077 LineOperation::Delete { lines } => {
3078 let old_end_row = old_row + lines - 1;
3079 let new_row = new_snapshot.anchor_before(Point::new(new_row, 0));
3080
3081 if let Some((_, last_deleted_row_range)) =
3082 self.diff.deleted_row_ranges.last_mut()
3083 {
3084 if *last_deleted_row_range.end() + 1 == old_row {
3085 *last_deleted_row_range = *last_deleted_row_range.start()..=old_end_row;
3086 } else {
3087 self.diff
3088 .deleted_row_ranges
3089 .push((new_row, old_row..=old_end_row));
3090 }
3091 } else {
3092 self.diff
3093 .deleted_row_ranges
3094 .push((new_row, old_row..=old_end_row));
3095 }
3096
3097 old_row += lines;
3098 }
3099 LineOperation::Insert { lines } => {
3100 let new_end_row = new_row + lines - 1;
3101 let start = new_snapshot.anchor_before(Point::new(new_row, 0));
3102 let end = new_snapshot.anchor_before(Point::new(
3103 new_end_row,
3104 new_snapshot.line_len(MultiBufferRow(new_end_row)),
3105 ));
3106 self.diff.inserted_row_ranges.push(start..=end);
3107 new_row += lines;
3108 }
3109 }
3110
3111 cx.notify();
3112 }
3113 }
3114
3115 fn reapply_batch_diff(&mut self, cx: &mut ModelContext<Self>) -> Task<()> {
3116 let old_snapshot = self.snapshot.clone();
3117 let old_range = self.range.to_point(&old_snapshot);
3118 let new_snapshot = self.buffer.read(cx).snapshot(cx);
3119 let new_range = self.range.to_point(&new_snapshot);
3120
3121 cx.spawn(|codegen, mut cx| async move {
3122 let (deleted_row_ranges, inserted_row_ranges) = cx
3123 .background_executor()
3124 .spawn(async move {
3125 let old_text = old_snapshot
3126 .text_for_range(
3127 Point::new(old_range.start.row, 0)
3128 ..Point::new(
3129 old_range.end.row,
3130 old_snapshot.line_len(MultiBufferRow(old_range.end.row)),
3131 ),
3132 )
3133 .collect::<String>();
3134 let new_text = new_snapshot
3135 .text_for_range(
3136 Point::new(new_range.start.row, 0)
3137 ..Point::new(
3138 new_range.end.row,
3139 new_snapshot.line_len(MultiBufferRow(new_range.end.row)),
3140 ),
3141 )
3142 .collect::<String>();
3143
3144 let mut old_row = old_range.start.row;
3145 let mut new_row = new_range.start.row;
3146 let batch_diff =
3147 similar::TextDiff::from_lines(old_text.as_str(), new_text.as_str());
3148
3149 let mut deleted_row_ranges: Vec<(Anchor, RangeInclusive<u32>)> = Vec::new();
3150 let mut inserted_row_ranges = Vec::new();
3151 for change in batch_diff.iter_all_changes() {
3152 let line_count = change.value().lines().count() as u32;
3153 match change.tag() {
3154 similar::ChangeTag::Equal => {
3155 old_row += line_count;
3156 new_row += line_count;
3157 }
3158 similar::ChangeTag::Delete => {
3159 let old_end_row = old_row + line_count - 1;
3160 let new_row = new_snapshot.anchor_before(Point::new(new_row, 0));
3161
3162 if let Some((_, last_deleted_row_range)) =
3163 deleted_row_ranges.last_mut()
3164 {
3165 if *last_deleted_row_range.end() + 1 == old_row {
3166 *last_deleted_row_range =
3167 *last_deleted_row_range.start()..=old_end_row;
3168 } else {
3169 deleted_row_ranges.push((new_row, old_row..=old_end_row));
3170 }
3171 } else {
3172 deleted_row_ranges.push((new_row, old_row..=old_end_row));
3173 }
3174
3175 old_row += line_count;
3176 }
3177 similar::ChangeTag::Insert => {
3178 let new_end_row = new_row + line_count - 1;
3179 let start = new_snapshot.anchor_before(Point::new(new_row, 0));
3180 let end = new_snapshot.anchor_before(Point::new(
3181 new_end_row,
3182 new_snapshot.line_len(MultiBufferRow(new_end_row)),
3183 ));
3184 inserted_row_ranges.push(start..=end);
3185 new_row += line_count;
3186 }
3187 }
3188 }
3189
3190 (deleted_row_ranges, inserted_row_ranges)
3191 })
3192 .await;
3193
3194 codegen
3195 .update(&mut cx, |codegen, cx| {
3196 codegen.diff.deleted_row_ranges = deleted_row_ranges;
3197 codegen.diff.inserted_row_ranges = inserted_row_ranges;
3198 cx.notify();
3199 })
3200 .ok();
3201 })
3202 }
3203}
3204
3205struct StripInvalidSpans<T> {
3206 stream: T,
3207 stream_done: bool,
3208 buffer: String,
3209 first_line: bool,
3210 line_end: bool,
3211 starts_with_code_block: bool,
3212}
3213
3214impl<T> StripInvalidSpans<T>
3215where
3216 T: Stream<Item = Result<String>>,
3217{
3218 fn new(stream: T) -> Self {
3219 Self {
3220 stream,
3221 stream_done: false,
3222 buffer: String::new(),
3223 first_line: true,
3224 line_end: false,
3225 starts_with_code_block: false,
3226 }
3227 }
3228}
3229
3230impl<T> Stream for StripInvalidSpans<T>
3231where
3232 T: Stream<Item = Result<String>>,
3233{
3234 type Item = Result<String>;
3235
3236 fn poll_next(self: Pin<&mut Self>, cx: &mut task::Context) -> Poll<Option<Self::Item>> {
3237 const CODE_BLOCK_DELIMITER: &str = "```";
3238 const CURSOR_SPAN: &str = "<|CURSOR|>";
3239
3240 let this = unsafe { self.get_unchecked_mut() };
3241 loop {
3242 if !this.stream_done {
3243 let mut stream = unsafe { Pin::new_unchecked(&mut this.stream) };
3244 match stream.as_mut().poll_next(cx) {
3245 Poll::Ready(Some(Ok(chunk))) => {
3246 this.buffer.push_str(&chunk);
3247 }
3248 Poll::Ready(Some(Err(error))) => return Poll::Ready(Some(Err(error))),
3249 Poll::Ready(None) => {
3250 this.stream_done = true;
3251 }
3252 Poll::Pending => return Poll::Pending,
3253 }
3254 }
3255
3256 let mut chunk = String::new();
3257 let mut consumed = 0;
3258 if !this.buffer.is_empty() {
3259 let mut lines = this.buffer.split('\n').enumerate().peekable();
3260 while let Some((line_ix, line)) = lines.next() {
3261 if line_ix > 0 {
3262 this.first_line = false;
3263 }
3264
3265 if this.first_line {
3266 let trimmed_line = line.trim();
3267 if lines.peek().is_some() {
3268 if trimmed_line.starts_with(CODE_BLOCK_DELIMITER) {
3269 consumed += line.len() + 1;
3270 this.starts_with_code_block = true;
3271 continue;
3272 }
3273 } else if trimmed_line.is_empty()
3274 || prefixes(CODE_BLOCK_DELIMITER)
3275 .any(|prefix| trimmed_line.starts_with(prefix))
3276 {
3277 break;
3278 }
3279 }
3280
3281 let line_without_cursor = line.replace(CURSOR_SPAN, "");
3282 if lines.peek().is_some() {
3283 if this.line_end {
3284 chunk.push('\n');
3285 }
3286
3287 chunk.push_str(&line_without_cursor);
3288 this.line_end = true;
3289 consumed += line.len() + 1;
3290 } else if this.stream_done {
3291 if !this.starts_with_code_block
3292 || !line_without_cursor.trim().ends_with(CODE_BLOCK_DELIMITER)
3293 {
3294 if this.line_end {
3295 chunk.push('\n');
3296 }
3297
3298 chunk.push_str(&line);
3299 }
3300
3301 consumed += line.len();
3302 } else {
3303 let trimmed_line = line.trim();
3304 if trimmed_line.is_empty()
3305 || prefixes(CURSOR_SPAN).any(|prefix| trimmed_line.ends_with(prefix))
3306 || prefixes(CODE_BLOCK_DELIMITER)
3307 .any(|prefix| trimmed_line.ends_with(prefix))
3308 {
3309 break;
3310 } else {
3311 if this.line_end {
3312 chunk.push('\n');
3313 this.line_end = false;
3314 }
3315
3316 chunk.push_str(&line_without_cursor);
3317 consumed += line.len();
3318 }
3319 }
3320 }
3321 }
3322
3323 this.buffer = this.buffer.split_off(consumed);
3324 if !chunk.is_empty() {
3325 return Poll::Ready(Some(Ok(chunk)));
3326 } else if this.stream_done {
3327 return Poll::Ready(None);
3328 }
3329 }
3330 }
3331}
3332
3333struct AssistantCodeActionProvider {
3334 editor: WeakView<Editor>,
3335 workspace: WeakView<Workspace>,
3336}
3337
3338impl CodeActionProvider for AssistantCodeActionProvider {
3339 fn code_actions(
3340 &self,
3341 buffer: &Model<Buffer>,
3342 range: Range<text::Anchor>,
3343 cx: &mut WindowContext,
3344 ) -> Task<Result<Vec<CodeAction>>> {
3345 let snapshot = buffer.read(cx).snapshot();
3346 let mut range = range.to_point(&snapshot);
3347
3348 // Expand the range to line boundaries.
3349 range.start.column = 0;
3350 range.end.column = snapshot.line_len(range.end.row);
3351
3352 let mut has_diagnostics = false;
3353 for diagnostic in snapshot.diagnostics_in_range::<_, Point>(range.clone(), false) {
3354 range.start = cmp::min(range.start, diagnostic.range.start);
3355 range.end = cmp::max(range.end, diagnostic.range.end);
3356 has_diagnostics = true;
3357 }
3358 if has_diagnostics {
3359 if let Some(symbols_containing_start) = snapshot.symbols_containing(range.start, None) {
3360 if let Some(symbol) = symbols_containing_start.last() {
3361 range.start = cmp::min(range.start, symbol.range.start.to_point(&snapshot));
3362 range.end = cmp::max(range.end, symbol.range.end.to_point(&snapshot));
3363 }
3364 }
3365
3366 if let Some(symbols_containing_end) = snapshot.symbols_containing(range.end, None) {
3367 if let Some(symbol) = symbols_containing_end.last() {
3368 range.start = cmp::min(range.start, symbol.range.start.to_point(&snapshot));
3369 range.end = cmp::max(range.end, symbol.range.end.to_point(&snapshot));
3370 }
3371 }
3372
3373 Task::ready(Ok(vec![CodeAction {
3374 server_id: language::LanguageServerId(0),
3375 range: snapshot.anchor_before(range.start)..snapshot.anchor_after(range.end),
3376 lsp_action: lsp::CodeAction {
3377 title: "Fix with Assistant".into(),
3378 ..Default::default()
3379 },
3380 }]))
3381 } else {
3382 Task::ready(Ok(Vec::new()))
3383 }
3384 }
3385
3386 fn apply_code_action(
3387 &self,
3388 buffer: Model<Buffer>,
3389 action: CodeAction,
3390 excerpt_id: ExcerptId,
3391 _push_to_history: bool,
3392 cx: &mut WindowContext,
3393 ) -> Task<Result<ProjectTransaction>> {
3394 let editor = self.editor.clone();
3395 let workspace = self.workspace.clone();
3396 cx.spawn(|mut cx| async move {
3397 let editor = editor.upgrade().context("editor was released")?;
3398 let range = editor
3399 .update(&mut cx, |editor, cx| {
3400 editor.buffer().update(cx, |multibuffer, cx| {
3401 let buffer = buffer.read(cx);
3402 let multibuffer_snapshot = multibuffer.read(cx);
3403
3404 let old_context_range =
3405 multibuffer_snapshot.context_range_for_excerpt(excerpt_id)?;
3406 let mut new_context_range = old_context_range.clone();
3407 if action
3408 .range
3409 .start
3410 .cmp(&old_context_range.start, buffer)
3411 .is_lt()
3412 {
3413 new_context_range.start = action.range.start;
3414 }
3415 if action.range.end.cmp(&old_context_range.end, buffer).is_gt() {
3416 new_context_range.end = action.range.end;
3417 }
3418 drop(multibuffer_snapshot);
3419
3420 if new_context_range != old_context_range {
3421 multibuffer.resize_excerpt(excerpt_id, new_context_range, cx);
3422 }
3423
3424 let multibuffer_snapshot = multibuffer.read(cx);
3425 Some(
3426 multibuffer_snapshot
3427 .anchor_in_excerpt(excerpt_id, action.range.start)?
3428 ..multibuffer_snapshot
3429 .anchor_in_excerpt(excerpt_id, action.range.end)?,
3430 )
3431 })
3432 })?
3433 .context("invalid range")?;
3434 let assistant_panel = workspace.update(&mut cx, |workspace, cx| {
3435 workspace
3436 .panel::<AssistantPanel>(cx)
3437 .context("assistant panel was released")
3438 })??;
3439
3440 cx.update_global(|assistant: &mut InlineAssistant, cx| {
3441 let assist_id = assistant.suggest_assist(
3442 &editor,
3443 range,
3444 "Fix Diagnostics".into(),
3445 None,
3446 true,
3447 Some(workspace),
3448 Some(&assistant_panel),
3449 cx,
3450 );
3451 assistant.start_assist(assist_id, cx);
3452 })?;
3453
3454 Ok(ProjectTransaction::default())
3455 })
3456 }
3457}
3458
3459fn prefixes(text: &str) -> impl Iterator<Item = &str> {
3460 (0..text.len() - 1).map(|ix| &text[..ix + 1])
3461}
3462
3463fn merge_ranges(ranges: &mut Vec<Range<Anchor>>, buffer: &MultiBufferSnapshot) {
3464 ranges.sort_unstable_by(|a, b| {
3465 a.start
3466 .cmp(&b.start, buffer)
3467 .then_with(|| b.end.cmp(&a.end, buffer))
3468 });
3469
3470 let mut ix = 0;
3471 while ix + 1 < ranges.len() {
3472 let b = ranges[ix + 1].clone();
3473 let a = &mut ranges[ix];
3474 if a.end.cmp(&b.start, buffer).is_gt() {
3475 if a.end.cmp(&b.end, buffer).is_lt() {
3476 a.end = b.end;
3477 }
3478 ranges.remove(ix + 1);
3479 } else {
3480 ix += 1;
3481 }
3482 }
3483}
3484
3485#[cfg(test)]
3486mod tests {
3487 use super::*;
3488 use futures::stream::{self};
3489 use gpui::{Context, TestAppContext};
3490 use indoc::indoc;
3491 use language::{
3492 language_settings, tree_sitter_rust, Buffer, Language, LanguageConfig, LanguageMatcher,
3493 Point,
3494 };
3495 use language_model::LanguageModelRegistry;
3496 use rand::prelude::*;
3497 use serde::Serialize;
3498 use settings::SettingsStore;
3499 use std::{future, sync::Arc};
3500
3501 #[derive(Serialize)]
3502 pub struct DummyCompletionRequest {
3503 pub name: String,
3504 }
3505
3506 #[gpui::test(iterations = 10)]
3507 async fn test_transform_autoindent(cx: &mut TestAppContext, mut rng: StdRng) {
3508 cx.set_global(cx.update(SettingsStore::test));
3509 cx.update(language_model::LanguageModelRegistry::test);
3510 cx.update(language_settings::init);
3511
3512 let text = indoc! {"
3513 fn main() {
3514 let x = 0;
3515 for _ in 0..10 {
3516 x += 1;
3517 }
3518 }
3519 "};
3520 let buffer =
3521 cx.new_model(|cx| Buffer::local(text, cx).with_language(Arc::new(rust_lang()), cx));
3522 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
3523 let range = buffer.read_with(cx, |buffer, cx| {
3524 let snapshot = buffer.snapshot(cx);
3525 snapshot.anchor_before(Point::new(1, 0))..snapshot.anchor_after(Point::new(4, 5))
3526 });
3527 let prompt_builder = Arc::new(PromptBuilder::new(None).unwrap());
3528 let codegen = cx.new_model(|cx| {
3529 CodegenAlternative::new(
3530 buffer.clone(),
3531 range.clone(),
3532 true,
3533 None,
3534 prompt_builder,
3535 cx,
3536 )
3537 });
3538
3539 let (chunks_tx, chunks_rx) = mpsc::unbounded();
3540 codegen.update(cx, |codegen, cx| {
3541 codegen.handle_stream(
3542 String::new(),
3543 future::ready(Ok(chunks_rx.map(Ok).boxed())),
3544 cx,
3545 )
3546 });
3547
3548 let mut new_text = concat!(
3549 " let mut x = 0;\n",
3550 " while x < 10 {\n",
3551 " x += 1;\n",
3552 " }",
3553 );
3554 while !new_text.is_empty() {
3555 let max_len = cmp::min(new_text.len(), 10);
3556 let len = rng.gen_range(1..=max_len);
3557 let (chunk, suffix) = new_text.split_at(len);
3558 chunks_tx.unbounded_send(chunk.to_string()).unwrap();
3559 new_text = suffix;
3560 cx.background_executor.run_until_parked();
3561 }
3562 drop(chunks_tx);
3563 cx.background_executor.run_until_parked();
3564
3565 assert_eq!(
3566 buffer.read_with(cx, |buffer, cx| buffer.snapshot(cx).text()),
3567 indoc! {"
3568 fn main() {
3569 let mut x = 0;
3570 while x < 10 {
3571 x += 1;
3572 }
3573 }
3574 "}
3575 );
3576 }
3577
3578 #[gpui::test(iterations = 10)]
3579 async fn test_autoindent_when_generating_past_indentation(
3580 cx: &mut TestAppContext,
3581 mut rng: StdRng,
3582 ) {
3583 cx.set_global(cx.update(SettingsStore::test));
3584 cx.update(language_settings::init);
3585
3586 let text = indoc! {"
3587 fn main() {
3588 le
3589 }
3590 "};
3591 let buffer =
3592 cx.new_model(|cx| Buffer::local(text, cx).with_language(Arc::new(rust_lang()), cx));
3593 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
3594 let range = buffer.read_with(cx, |buffer, cx| {
3595 let snapshot = buffer.snapshot(cx);
3596 snapshot.anchor_before(Point::new(1, 6))..snapshot.anchor_after(Point::new(1, 6))
3597 });
3598 let prompt_builder = Arc::new(PromptBuilder::new(None).unwrap());
3599 let codegen = cx.new_model(|cx| {
3600 CodegenAlternative::new(
3601 buffer.clone(),
3602 range.clone(),
3603 true,
3604 None,
3605 prompt_builder,
3606 cx,
3607 )
3608 });
3609
3610 let (chunks_tx, chunks_rx) = mpsc::unbounded();
3611 codegen.update(cx, |codegen, cx| {
3612 codegen.handle_stream(
3613 String::new(),
3614 future::ready(Ok(chunks_rx.map(Ok).boxed())),
3615 cx,
3616 )
3617 });
3618
3619 cx.background_executor.run_until_parked();
3620
3621 let mut new_text = concat!(
3622 "t mut x = 0;\n",
3623 "while x < 10 {\n",
3624 " x += 1;\n",
3625 "}", //
3626 );
3627 while !new_text.is_empty() {
3628 let max_len = cmp::min(new_text.len(), 10);
3629 let len = rng.gen_range(1..=max_len);
3630 let (chunk, suffix) = new_text.split_at(len);
3631 chunks_tx.unbounded_send(chunk.to_string()).unwrap();
3632 new_text = suffix;
3633 cx.background_executor.run_until_parked();
3634 }
3635 drop(chunks_tx);
3636 cx.background_executor.run_until_parked();
3637
3638 assert_eq!(
3639 buffer.read_with(cx, |buffer, cx| buffer.snapshot(cx).text()),
3640 indoc! {"
3641 fn main() {
3642 let mut x = 0;
3643 while x < 10 {
3644 x += 1;
3645 }
3646 }
3647 "}
3648 );
3649 }
3650
3651 #[gpui::test(iterations = 10)]
3652 async fn test_autoindent_when_generating_before_indentation(
3653 cx: &mut TestAppContext,
3654 mut rng: StdRng,
3655 ) {
3656 cx.update(LanguageModelRegistry::test);
3657 cx.set_global(cx.update(SettingsStore::test));
3658 cx.update(language_settings::init);
3659
3660 let text = concat!(
3661 "fn main() {\n",
3662 " \n",
3663 "}\n" //
3664 );
3665 let buffer =
3666 cx.new_model(|cx| Buffer::local(text, cx).with_language(Arc::new(rust_lang()), cx));
3667 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
3668 let range = buffer.read_with(cx, |buffer, cx| {
3669 let snapshot = buffer.snapshot(cx);
3670 snapshot.anchor_before(Point::new(1, 2))..snapshot.anchor_after(Point::new(1, 2))
3671 });
3672 let prompt_builder = Arc::new(PromptBuilder::new(None).unwrap());
3673 let codegen = cx.new_model(|cx| {
3674 CodegenAlternative::new(
3675 buffer.clone(),
3676 range.clone(),
3677 true,
3678 None,
3679 prompt_builder,
3680 cx,
3681 )
3682 });
3683
3684 let (chunks_tx, chunks_rx) = mpsc::unbounded();
3685 codegen.update(cx, |codegen, cx| {
3686 codegen.handle_stream(
3687 String::new(),
3688 future::ready(Ok(chunks_rx.map(Ok).boxed())),
3689 cx,
3690 )
3691 });
3692
3693 cx.background_executor.run_until_parked();
3694
3695 let mut new_text = concat!(
3696 "let mut x = 0;\n",
3697 "while x < 10 {\n",
3698 " x += 1;\n",
3699 "}", //
3700 );
3701 while !new_text.is_empty() {
3702 let max_len = cmp::min(new_text.len(), 10);
3703 let len = rng.gen_range(1..=max_len);
3704 let (chunk, suffix) = new_text.split_at(len);
3705 chunks_tx.unbounded_send(chunk.to_string()).unwrap();
3706 new_text = suffix;
3707 cx.background_executor.run_until_parked();
3708 }
3709 drop(chunks_tx);
3710 cx.background_executor.run_until_parked();
3711
3712 assert_eq!(
3713 buffer.read_with(cx, |buffer, cx| buffer.snapshot(cx).text()),
3714 indoc! {"
3715 fn main() {
3716 let mut x = 0;
3717 while x < 10 {
3718 x += 1;
3719 }
3720 }
3721 "}
3722 );
3723 }
3724
3725 #[gpui::test(iterations = 10)]
3726 async fn test_autoindent_respects_tabs_in_selection(cx: &mut TestAppContext) {
3727 cx.update(LanguageModelRegistry::test);
3728 cx.set_global(cx.update(SettingsStore::test));
3729 cx.update(language_settings::init);
3730
3731 let text = indoc! {"
3732 func main() {
3733 \tx := 0
3734 \tfor i := 0; i < 10; i++ {
3735 \t\tx++
3736 \t}
3737 }
3738 "};
3739 let buffer = cx.new_model(|cx| Buffer::local(text, cx));
3740 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
3741 let range = buffer.read_with(cx, |buffer, cx| {
3742 let snapshot = buffer.snapshot(cx);
3743 snapshot.anchor_before(Point::new(0, 0))..snapshot.anchor_after(Point::new(4, 2))
3744 });
3745 let prompt_builder = Arc::new(PromptBuilder::new(None).unwrap());
3746 let codegen = cx.new_model(|cx| {
3747 CodegenAlternative::new(
3748 buffer.clone(),
3749 range.clone(),
3750 true,
3751 None,
3752 prompt_builder,
3753 cx,
3754 )
3755 });
3756
3757 let (chunks_tx, chunks_rx) = mpsc::unbounded();
3758 codegen.update(cx, |codegen, cx| {
3759 codegen.handle_stream(
3760 String::new(),
3761 future::ready(Ok(chunks_rx.map(Ok).boxed())),
3762 cx,
3763 )
3764 });
3765
3766 let new_text = concat!(
3767 "func main() {\n",
3768 "\tx := 0\n",
3769 "\tfor x < 10 {\n",
3770 "\t\tx++\n",
3771 "\t}", //
3772 );
3773 chunks_tx.unbounded_send(new_text.to_string()).unwrap();
3774 drop(chunks_tx);
3775 cx.background_executor.run_until_parked();
3776
3777 assert_eq!(
3778 buffer.read_with(cx, |buffer, cx| buffer.snapshot(cx).text()),
3779 indoc! {"
3780 func main() {
3781 \tx := 0
3782 \tfor x < 10 {
3783 \t\tx++
3784 \t}
3785 }
3786 "}
3787 );
3788 }
3789
3790 #[gpui::test]
3791 async fn test_inactive_codegen_alternative(cx: &mut TestAppContext) {
3792 cx.update(LanguageModelRegistry::test);
3793 cx.set_global(cx.update(SettingsStore::test));
3794 cx.update(language_settings::init);
3795
3796 let text = indoc! {"
3797 fn main() {
3798 let x = 0;
3799 }
3800 "};
3801 let buffer =
3802 cx.new_model(|cx| Buffer::local(text, cx).with_language(Arc::new(rust_lang()), cx));
3803 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
3804 let range = buffer.read_with(cx, |buffer, cx| {
3805 let snapshot = buffer.snapshot(cx);
3806 snapshot.anchor_before(Point::new(1, 0))..snapshot.anchor_after(Point::new(1, 14))
3807 });
3808 let prompt_builder = Arc::new(PromptBuilder::new(None).unwrap());
3809 let codegen = cx.new_model(|cx| {
3810 CodegenAlternative::new(
3811 buffer.clone(),
3812 range.clone(),
3813 false,
3814 None,
3815 prompt_builder,
3816 cx,
3817 )
3818 });
3819
3820 let (chunks_tx, chunks_rx) = mpsc::unbounded();
3821 codegen.update(cx, |codegen, cx| {
3822 codegen.handle_stream(
3823 String::new(),
3824 future::ready(Ok(chunks_rx.map(Ok).boxed())),
3825 cx,
3826 )
3827 });
3828
3829 chunks_tx
3830 .unbounded_send("let mut x = 0;\nx += 1;".to_string())
3831 .unwrap();
3832 drop(chunks_tx);
3833 cx.run_until_parked();
3834
3835 // The codegen is inactive, so the buffer doesn't get modified.
3836 assert_eq!(
3837 buffer.read_with(cx, |buffer, cx| buffer.snapshot(cx).text()),
3838 text
3839 );
3840
3841 // Activating the codegen applies the changes.
3842 codegen.update(cx, |codegen, cx| codegen.set_active(true, cx));
3843 assert_eq!(
3844 buffer.read_with(cx, |buffer, cx| buffer.snapshot(cx).text()),
3845 indoc! {"
3846 fn main() {
3847 let mut x = 0;
3848 x += 1;
3849 }
3850 "}
3851 );
3852
3853 // Deactivating the codegen undoes the changes.
3854 codegen.update(cx, |codegen, cx| codegen.set_active(false, cx));
3855 cx.run_until_parked();
3856 assert_eq!(
3857 buffer.read_with(cx, |buffer, cx| buffer.snapshot(cx).text()),
3858 text
3859 );
3860 }
3861
3862 #[gpui::test]
3863 async fn test_strip_invalid_spans_from_codeblock() {
3864 assert_chunks("Lorem ipsum dolor", "Lorem ipsum dolor").await;
3865 assert_chunks("```\nLorem ipsum dolor", "Lorem ipsum dolor").await;
3866 assert_chunks("```\nLorem ipsum dolor\n```", "Lorem ipsum dolor").await;
3867 assert_chunks(
3868 "```html\n```js\nLorem ipsum dolor\n```\n```",
3869 "```js\nLorem ipsum dolor\n```",
3870 )
3871 .await;
3872 assert_chunks("``\nLorem ipsum dolor\n```", "``\nLorem ipsum dolor\n```").await;
3873 assert_chunks("Lorem<|CURSOR|> ipsum", "Lorem ipsum").await;
3874 assert_chunks("Lorem ipsum", "Lorem ipsum").await;
3875 assert_chunks("```\n<|CURSOR|>Lorem ipsum\n```", "Lorem ipsum").await;
3876
3877 async fn assert_chunks(text: &str, expected_text: &str) {
3878 for chunk_size in 1..=text.len() {
3879 let actual_text = StripInvalidSpans::new(chunks(text, chunk_size))
3880 .map(|chunk| chunk.unwrap())
3881 .collect::<String>()
3882 .await;
3883 assert_eq!(
3884 actual_text, expected_text,
3885 "failed to strip invalid spans, chunk size: {}",
3886 chunk_size
3887 );
3888 }
3889 }
3890
3891 fn chunks(text: &str, size: usize) -> impl Stream<Item = Result<String>> {
3892 stream::iter(
3893 text.chars()
3894 .collect::<Vec<_>>()
3895 .chunks(size)
3896 .map(|chunk| Ok(chunk.iter().collect::<String>()))
3897 .collect::<Vec<_>>(),
3898 )
3899 }
3900 }
3901
3902 fn rust_lang() -> Language {
3903 Language::new(
3904 LanguageConfig {
3905 name: "Rust".into(),
3906 matcher: LanguageMatcher {
3907 path_suffixes: vec!["rs".to_string()],
3908 ..Default::default()
3909 },
3910 ..Default::default()
3911 },
3912 Some(tree_sitter_rust::LANGUAGE.into()),
3913 )
3914 .with_indents_query(
3915 r#"
3916 (call_expression) @indent
3917 (field_expression) @indent
3918 (_ "(" ")" @end) @indent
3919 (_ "{" "}" @end) @indent
3920 "#,
3921 )
3922 .unwrap()
3923 }
3924}